Merge develop

.gitlab-ci.yml

@@ -1,4 +1,4 @@
-image: elixir:1.8.1
+image: elixir:1.9.4
 
 variables: &global_variables
   POSTGRES_DB: pleroma_test
@@ -170,8 +170,7 @@ stop_review_app:
 
 amd64:
   stage: release
-  # TODO: Replace with upstream image when 1.9.0 comes out
+  image: elixir:1.10.3
-  image: rinpatch/elixir:1.9.0-rc.0
   only: &release-only
   - stable@pleroma/pleroma
   - develop@pleroma/pleroma
@@ -208,8 +207,7 @@ amd64-musl:
   stage: release
   artifacts: *release-artifacts
   only: *release-only
-  # TODO: Replace with upstream image when 1.9.0 comes out
+  image: elixir:1.10.3-alpine 
-  image: rinpatch/elixir:1.9.0-rc.0-alpine
   cache: *release-cache
   variables: *release-variables
   before_script: &before-release-musl
@@ -225,8 +223,7 @@ arm:
   only: *release-only
   tags:
     - arm32
-  # TODO: Replace with upstream image when 1.9.0 comes out
+  image: elixir:1.10.3
-  image: rinpatch/elixir:1.9.0-rc.0-arm
   cache: *release-cache
   variables: *release-variables
   before_script: *before-release
@@ -238,8 +235,7 @@ arm-musl:
   only: *release-only
   tags:
     - arm32
-  # TODO: Replace with upstream image when 1.9.0 comes out
+  image: elixir:1.10.3-alpine
-  image: rinpatch/elixir:1.9.0-rc.0-arm-alpine
   cache: *release-cache
   variables: *release-variables
   before_script: *before-release-musl
@@ -251,8 +247,7 @@ arm64:
   only: *release-only
   tags:
     - arm
-  # TODO: Replace with upstream image when 1.9.0 comes out
+  image: elixir:1.10.3
-  image: rinpatch/elixir:1.9.0-rc.0-arm64
   cache: *release-cache
   variables: *release-variables
   before_script: *before-release
@@ -265,7 +260,7 @@ arm64-musl:
   tags:
     - arm
   # TODO: Replace with upstream image when 1.9.0 comes out
-  image: rinpatch/elixir:1.9.0-rc.0-arm64-alpine
+  image: elixir:1.10.3-alpine
   cache: *release-cache
   variables: *release-variables
   before_script: *before-release-musl

CHANGELOG.md

@@ -6,6 +6,13 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ## [unreleased]
 
 ### Changed
+- **Breaking:** Elixir >=1.9 is now required (was >= 1.8)
+- In Conversations, return only direct messages as `last_status`
+- Using the `only_media` filter on timelines will now exclude reblog media
+- MFR policy to set global expiration for all local Create activities
+- OGP rich media parser merged with TwitterCard
+- Configuration: `:instance, rewrite_policy` moved to `:mrf, policies`, `:instance, :mrf_transparency` moved to `:mrf, :transparency`, `:instance, :mrf_transparency_exclusions` moved to `:mrf, :transparency_exclusions`. Old config namespace is deprecated.
+
 <details>
   <summary>API Changes</summary>
 
@@ -24,6 +31,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - **Breaking:** removed `with_move` parameter from notifications timeline.
 
 ### Added
+
+- Chats: Added support for federated chats. For details, see the docs.
 - ActivityPub: Added support for existing AP ids for instances migrated from Mastodon.
 - Instance: Add `background_image` to configuration and `/api/v1/instance`
 - Instance: Extend `/api/v1/instance` with Pleroma-specific information.
@@ -34,17 +43,22 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Configuration: `filename_display_max_length` option to set filename truncate limit, if filename display enabled (0 = no limit).
 - New HTTP adapter [gun](https://github.com/ninenines/gun). Gun adapter requires minimum OTP version of 22.2 otherwise Pleroma won’t start. For hackney OTP update is not required.
 - Mix task to create trusted OAuth App.
+- Mix task to reset MFA for user accounts
 - Notifications: Added `follow_request` notification type.
 - Added `:reject_deletes` group to SimplePolicy
 - MRF (`EmojiStealPolicy`): New MRF Policy which allows to automatically download emojis from remote instances
+- Support pagination in emoji packs API (for packs and for files in pack)
+
 <details>
   <summary>API Changes</summary>
 - Mastodon API: Extended `/api/v1/instance`.
 - Mastodon API: Support for `include_types` in `/api/v1/notifications`.
 - Mastodon API: Added `/api/v1/notifications/:id/dismiss` endpoint.
 - Mastodon API: Add support for filtering replies in public and home timelines
+- Mastodon API: Support for `bot` field in `/api/v1/accounts/update_credentials`
 - Admin API: endpoints for create/update/delete OAuth Apps.
 - Admin API: endpoint for status view.
+- OTP: Add command to reload emoji packs
 </details>
 
 ### Fixed
@@ -54,6 +68,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Filtering of push notifications on activities from blocked domains
 - Resolving Peertube accounts with Webfinger
 - `blob:` urls not being allowed by connect-src CSP
+- Mastodon API: fix `GET /api/v1/notifications` not returning the full result set
 
 ## [Unreleased (patch)]
 

README.md

@@ -34,6 +34,16 @@ Currently Pleroma is not packaged by any OS/Distros, but if you want to package
 ### Docker
 While we don’t provide docker files, other people have written very good ones. Take a look at <https://github.com/angristan/docker-pleroma> or <https://glitch.sh/sn0w/pleroma-docker>.
 
+### Compilation Troubleshooting
+If you ever encounter compilation issues during the updating of Pleroma, you can try these commands and see if they fix things:
+
+- `mix deps.clean --all`
+- `mix local.rebar`
+- `mix local.hex`
+- `rm -r _build`
+
+If you are not developing Pleroma, it is better to use the OTP release, which comes with everything precompiled.
+
 ## Documentation
 - Latest Released revision: <https://docs.pleroma.social>
 - Latest Git revision: <https://docs-develop.pleroma.social>

config/config.exs

@@ -186,6 +186,7 @@
   notify_email: "noreply@example.com",
   description: "Pleroma: An efficient and flexible fediverse server",
   background_image: "/images/city.jpg",
+  instance_thumbnail: "/instance/thumbnail.jpeg",
   limit: 5_000,
   chat_limit: 5_000,
   remote_limit: 100_000,
@@ -209,7 +210,6 @@
     Pleroma.Web.ActivityPub.Publisher
   ],
   allow_relay: true,
-  rewrite_policy: Pleroma.Web.ActivityPub.MRF.NoOpPolicy,
   public: true,
   quarantined_instances: [],
   managed_config: true,
@@ -220,8 +220,6 @@
     "text/markdown",
     "text/bbcode"
   ],
-  mrf_transparency: true,
-  mrf_transparency_exclusions: [],
   autofollowed_nicknames: [],
   max_pinned_statuses: 1,
   attachment_links: false,
@@ -371,6 +369,8 @@
 
 config :pleroma, :mrf_subchain, match_actor: %{}
 
+config :pleroma, :mrf_activity_expiration, days: 365
+
 config :pleroma, :mrf_vocabulary,
   accept: [],
   reject: []
@@ -385,7 +385,6 @@
   ignore_tld: ["local", "localdomain", "lan"],
   parsers: [
     Pleroma.Web.RichMedia.Parsers.TwitterCard,
-    Pleroma.Web.RichMedia.Parsers.OGP,
     Pleroma.Web.RichMedia.Parsers.OEmbed
   ],
   ttl_setters: [Pleroma.Web.RichMedia.Parser.TTL.AwsSignedUrl]
@@ -406,6 +405,13 @@
   ],
   whitelist: []
 
+config :pleroma, Pleroma.Web.MediaProxy.Invalidation.Http,
+  method: :purge,
+  headers: [],
+  options: []
+
+config :pleroma, Pleroma.Web.MediaProxy.Invalidation.Script, script_path: nil
+
 config :pleroma, :chat, enabled: true
 
 config :phoenix, :format_encoders, json: Jason
@@ -684,6 +690,11 @@
 
 config :pleroma, Pleroma.Web.ApiSpec.CastAndValidate, strict: false
 
+config :pleroma, :mrf,
+  policies: Pleroma.Web.ActivityPub.MRF.NoOpPolicy,
+  transparency: true,
+  transparency_exclusions: []
+
 # Import environment specific config. This must remain at the bottom
 # of this file so it overrides the configuration defined above.
 import_config "#{Mix.env()}.exs"

config/description.exs

@@ -689,17 +689,6 @@
         type: :boolean,
         description: "Enable Pleroma's Relay, which makes it possible to follow a whole instance"
       },
-      %{
-        key: :rewrite_policy,
-        type: [:module, {:list, :module}],
-        description:
-          "A list of enabled MRF policies. Module names are shortened (removed leading `Pleroma.Web.ActivityPub.MRF.` part), but on adding custom module you need to use full name.",
-        suggestions:
-          Generator.list_modules_in_dir(
-            "lib/pleroma/web/activity_pub/mrf",
-            "Elixir.Pleroma.Web.ActivityPub.MRF."
-          )
-      },
       %{
         key: :public,
         type: :boolean,
@@ -742,23 +731,6 @@
           "text/bbcode"
         ]
       },
-      %{
-        key: :mrf_transparency,
-        label: "MRF transparency",
-        type: :boolean,
-        description:
-          "Make the content of your Message Rewrite Facility settings public (via nodeinfo)"
-      },
-      %{
-        key: :mrf_transparency_exclusions,
-        label: "MRF transparency exclusions",
-        type: {:list, :string},
-        description:
-          "Exclude specific instance names from MRF transparency. The use of the exclusions feature will be disclosed in nodeinfo as a boolean value.",
-        suggestions: [
-          "exclusion.com"
-        ]
-      },
       %{
         key: :extended_nickname_format,
         type: :boolean,
@@ -1471,6 +1443,21 @@
       }
     ]
   },
+  %{
+    group: :pleroma,
+    key: :mrf_activity_expiration,
+    label: "MRF Activity Expiration Policy",
+    type: :group,
+    description: "Adds expiration to all local Create Note activities",
+    children: [
+      %{
+        key: :days,
+        type: :integer,
+        description: "Default global expiration time for all local Create activities (in days)",
+        suggestions: [90, 365]
+      }
+    ]
+  },
   %{
     group: :pleroma,
     key: :mrf_subchain,
@@ -1608,14 +1595,12 @@
   # %{
   #   group: :pleroma,
   #   key: :mrf_user_allowlist,
-  #   type: :group,
+  #   type: :map,
   #   description:
   #     "The keys in this section are the domain names that the policy should apply to." <>
   #       " Each key should be assigned a list of users that should be allowed through by their ActivityPub ID",
-  #   children: [
-  #     ["example.org": ["https://example.org/users/admin"]],
   #     suggestions: [
-  #       ["example.org": ["https://example.org/users/admin"]]
+  #       %{"example.org" => ["https://example.org/users/admin"]}
   #     ]
   #   ]
   # },
@@ -1637,6 +1622,31 @@
           "The base URL to access a user-uploaded file. Useful when you want to proxy the media files via another host/CDN fronts.",
         suggestions: ["https://example.com"]
       },
+      %{
+        key: :invalidation,
+        type: :keyword,
+        descpiption: "",
+        suggestions: [
+          enabled: true,
+          provider: Pleroma.Web.MediaProxy.Invalidation.Script
+        ],
+        children: [
+          %{
+            key: :enabled,
+            type: :boolean,
+            description: "Enables invalidate media cache"
+          },
+          %{
+            key: :provider,
+            type: :module,
+            description: "Module which will be used to cache purge.",
+            suggestions: [
+              Pleroma.Web.MediaProxy.Invalidation.Script,
+              Pleroma.Web.MediaProxy.Invalidation.Http
+            ]
+          }
+        ]
+      },
       %{
         key: :proxy_opts,
         type: :keyword,
@@ -1709,6 +1719,45 @@
       }
     ]
   },
+  %{
+    group: :pleroma,
+    key: Pleroma.Web.MediaProxy.Invalidation.Http,
+    type: :group,
+    description: "HTTP invalidate settings",
+    children: [
+      %{
+        key: :method,
+        type: :atom,
+        description: "HTTP method of request. Default: :purge"
+      },
+      %{
+        key: :headers,
+        type: {:list, :tuple},
+        description: "HTTP headers of request.",
+        suggestions: [{"x-refresh", 1}]
+      },
+      %{
+        key: :options,
+        type: :keyword,
+        description: "Request options.",
+        suggestions: [params: %{ts: "xxx"}]
+      }
+    ]
+  },
+  %{
+    group: :pleroma,
+    key: Pleroma.Web.MediaProxy.Invalidation.Script,
+    type: :group,
+    description: "Script invalidate settings",
+    children: [
+      %{
+        key: :script_path,
+        type: :string,
+        description: "Path to shell script. Which will run purge cache.",
+        suggestions: ["./installation/nginx-cache-purge.sh.example"]
+      }
+    ]
+  },
   %{
     group: :pleroma,
     key: :gopher,
@@ -2091,9 +2140,7 @@
         description:
           "List of Rich Media parsers. Module names are shortened (removed leading `Pleroma.Web.RichMedia.Parsers.` part), but on adding custom module you need to use full name.",
         suggestions: [
-          Pleroma.Web.RichMedia.Parsers.MetaTagsParser,
           Pleroma.Web.RichMedia.Parsers.OEmbed,
-          Pleroma.Web.RichMedia.Parsers.OGP,
           Pleroma.Web.RichMedia.Parsers.TwitterCard
         ]
       },
@@ -3314,5 +3361,41 @@
         suggestions: [false]
       }
     ]
+  },
+  %{
+    group: :pleroma,
+    key: :mrf,
+    type: :group,
+    description: "General MRF settings",
+    children: [
+      %{
+        key: :policies,
+        type: [:module, {:list, :module}],
+        description:
+          "A list of MRF policies enabled. Module names are shortened (removed leading `Pleroma.Web.ActivityPub.MRF.` part), but on adding custom module you need to use full name.",
+        suggestions:
+          Generator.list_modules_in_dir(
+            "lib/pleroma/web/activity_pub/mrf",
+            "Elixir.Pleroma.Web.ActivityPub.MRF."
+          )
+      },
+      %{
+        key: :transparency,
+        label: "MRF transparency",
+        type: :boolean,
+        description:
+          "Make the content of your Message Rewrite Facility settings public (via nodeinfo)"
+      },
+      %{
+        key: :transparency_exclusions,
+        label: "MRF transparency exclusions",
+        type: {:list, :string},
+        description:
+          "Exclude specific instance names from MRF transparency. The use of the exclusions feature will be disclosed in nodeinfo as a boolean value.",
+        suggestions: [
+          "exclusion.com"
+        ]
+      }
+    ]
   }
 ]

docs/API/admin_api.md

@@ -488,35 +488,39 @@ Note: Available `:permission_group` is currently moderator and admin. 404 is ret
 
 ### Change the user's email, password, display and settings-related fields
 
-- Params:
+* Params:
-  - `email`
+  * `email`
-  - `password`
+  * `password`
-  - `name`
+  * `name`
-  - `bio`
+  * `bio`
-  - `avatar`
+  * `avatar`
-  - `locked`
+  * `locked`
-  - `no_rich_text`
+  * `no_rich_text`
-  - `default_scope`
+  * `default_scope`
-  - `banner`
+  * `banner`
-  - `hide_follows`
+  * `hide_follows`
-  - `hide_followers`
+  * `hide_followers`
-  - `hide_followers_count`
+  * `hide_followers_count`
-  - `hide_follows_count`
+  * `hide_follows_count`
-  - `hide_favorites`
+  * `hide_favorites`
-  - `allow_following_move`
+  * `allow_following_move`
-  - `background`
+  * `background`
-  - `show_role`
+  * `show_role`
-  - `skip_thread_containment`
+  * `skip_thread_containment`
-  - `fields`
+  * `fields`
-  - `discoverable`
+  * `discoverable`
-  - `actor_type`
+  * `actor_type`
 
-- Response:
+* Responses:
+
+Status: 200
 
 ```json
 {"status": "success"}
 ```
 
+Status: 400
+
 ```json
 {"errors":
   {"actor_type": "is invalid"},
@@ -525,8 +529,10 @@ Note: Available `:permission_group` is currently moderator and admin. 404 is ret
  }
 ```
 
+Status: 404
+
 ```json
-{"error": "Unable to update user."}
+{"error": "Not found"}
 ```
 
 ## `GET /api/pleroma/admin/reports`
@@ -1228,4 +1234,66 @@ Loads json generated from `config/descriptions.exs`.
 - Response:
   - On success: `204`, empty response
   - On failure:
-    - 400 Bad Request `"Invalid parameters"` when `status` is missing
+    - 400 Bad Request `"Invalid parameters"` when `status` is missing
+
+## `GET /api/pleroma/admin/media_proxy_caches`
+
+### Get a list of all banned MediaProxy URLs in Cachex
+
+- Authentication: required
+- Params:
+- *optional* `page`: **integer** page number
+- *optional* `page_size`: **integer** number of log entries per page (default is `50`)
+
+- Response:
+
+``` json
+{
+  "urls": [
+    "http://example.com/media/a688346.jpg",
+    "http://example.com/media/fb1f4d.jpg"
+  ]
+}
+
+```
+
+## `POST /api/pleroma/admin/media_proxy_caches/delete`
+
+### Remove a banned MediaProxy URL from Cachex
+
+- Authentication: required
+- Params:
+  - `urls` (array)
+
+- Response:
+
+``` json
+{
+  "urls": [
+    "http://example.com/media/a688346.jpg",
+    "http://example.com/media/fb1f4d.jpg"
+  ]
+}
+
+```
+
+## `POST /api/pleroma/admin/media_proxy_caches/purge`
+
+### Purge a MediaProxy URL
+
+- Authentication: required
+- Params:
+  - `urls` (array)
+  - `ban` (boolean)
+
+- Response:
+
+``` json
+{
+  "urls": [
+    "http://example.com/media/a688346.jpg",
+    "http://example.com/media/fb1f4d.jpg"
+  ]
+}
+
+```

docs/API/chats.md

@@ -0,0 +1,248 @@
+# Chats
+
+Chats are a way to represent an IM-style conversation between two actors. They are not the same as direct messages and they are not `Status`es, even though they have a lot in common.
+
+## Why Chats?
+
+There are no 'visibility levels' in ActivityPub, their definition is purely a Mastodon convention. Direct Messaging between users on the fediverse has mostly been modeled by using ActivityPub addressing following Mastodon conventions on normal `Note` objects. In this case, a 'direct message' would be a message that has no followers addressed and also does not address the special public actor, but just the recipients in the `to` field. It would still be a `Note` and is presented with other `Note`s as a `Status` in the API.
+
+This is an awkward setup for a few reasons:
+
+- As DMs generally still follow the usual `Status` conventions, it is easy to accidentally pull somebody into a DM thread by mentioning them. (e.g. "I hate @badguy so much")
+- It is possible to go from a publicly addressed `Status` to a DM reply, back to public, then to a 'followers only' reply, and so on. This can be become very confusing, as it is unclear which user can see which part of the conversation.
+- The standard `Status` format of implicit addressing also leads to rather ugly results if you try to display the messages as a chat, because all the recipients are always mentioned by name in the message.
+- As direct messages are posted with the same api call (and usually same frontend component) as public messages, accidentally making a public message private or vice versa can happen easily. Client bugs can also lead to this, accidentally making private messages public.
+
+As a measure to improve this situation, the `Conversation` concept and related Pleroma extensions were introduced. While it made it possible to work around a few of the issues, many of the problems remained and it didn't see much adoption because it was too complicated to use correctly. 
+
+## Chats explained
+For this reasons, Chats are a new and different entity, both in the API as well as in ActivityPub. A quick overview:
+
+- Chats are meant to represent an instant message conversation between two actors. For now these are only 1-on-1 conversations, but the other actor can be a group in the future.
+- Chat messages have the ActivityPub type `ChatMessage`. They are not `Note`s. Servers that don't understand them will just drop them.
+- The only addressing allowed in `ChatMessage`s is one single ActivityPub actor in the `to` field.
+- There's always only one Chat between two actors. If you start chatting with someone and later start a 'new' Chat, the old Chat will be continued.
+- `ChatMessage`s are posted with a different api, making it very hard to accidentally send a message to the wrong person.
+- `ChatMessage`s don't show up in the existing timelines.
+- Chats can never go from private to public. They are always private between the two actors.
+
+## Caveats
+
+- Chats are NOT E2E encrypted (yet). Security is still the same as email.
+
+## API
+
+In general, the way to send a `ChatMessage` is to first create a `Chat`, then post a message to that `Chat`. `Group`s will later be supported by making them a sub-type of `Account`.
+
+This is the overview of using the API. The API is also documented via OpenAPI, so you can view it and play with it by pointing SwaggerUI or a similar OpenAPI tool to `https://yourinstance.tld/api/openapi`.
+
+### Creating or getting a chat.
+
+To create or get an existing Chat for a certain recipient (identified by Account ID)
+you can call:
+
+`POST /api/v1/pleroma/chats/by-account-id/:account_id`
+
+The account id is the normal FlakeId of the user
+```
+POST /api/v1/pleroma/chats/by-account-id/someflakeid
+```
+
+If you already have the id of a chat, you can also use
+
+```
+GET /api/v1/pleroma/chats/:id
+```
+
+There will only ever be ONE Chat for you and a given recipient, so this call
+will return the same Chat if you already have one with that user.
+
+Returned data:
+
+```json
+{
+  "account": {
+    "id": "someflakeid",
+    "username": "somenick",
+    ...
+  },
+  "id" : "1",
+  "unread" : 2,
+  "last_message" : {...}, // The last message in that chat
+  "updated_at": "2020-04-21T15:11:46.000Z"
+}
+```
+
+### Marking a chat as read
+
+To mark a number of messages in a chat up to a certain message as read, you can use
+
+`POST /api/v1/pleroma/chats/:id/read`
+
+
+Parameters:
+- last_read_id: Given this id, all chat messages until this one will be marked as read. Required.
+
+
+Returned data:
+
+```json
+{
+  "account": {
+    "id": "someflakeid",
+    "username": "somenick",
+    ...
+  },
+  "id" : "1",
+  "unread" : 0,
+  "updated_at": "2020-04-21T15:11:46.000Z"
+}
+```
+
+### Marking a single chat message as read
+
+To set the `unread` property of a message to `false`
+
+`POST /api/v1/pleroma/chats/:id/messages/:message_id/read`
+
+Returned data:
+
+The modified chat message
+
+### Getting a list of Chats
+
+`GET /api/v1/pleroma/chats`
+
+This will return a list of chats that you have been involved in, sorted by their
+last update (so new chats will be at the top).
+
+Returned data:
+
+```json
+[
+   {
+      "account": {
+        "id": "someflakeid",
+        "username": "somenick",
+        ...
+      },
+      "id" : "1",
+      "unread" : 2,
+      "last_message" : {...}, // The last message in that chat
+      "updated_at": "2020-04-21T15:11:46.000Z"
+   }
+]
+```
+
+The recipient of messages that are sent to this chat is given by their AP ID.
+No pagination is implemented for now.
+
+### Getting the messages for a Chat
+
+For a given Chat id, you can get the associated messages with
+
+`GET /api/v1/pleroma/chats/:id/messages`
+
+This will return all messages, sorted by most recent to least recent. The usual
+pagination options are implemented.
+
+Returned data:
+
+```json
+[
+  {
+    "account_id": "someflakeid",
+    "chat_id": "1",
+    "content": "Check this out :firefox:",
+    "created_at": "2020-04-21T15:11:46.000Z",
+    "emojis": [
+      {
+        "shortcode": "firefox",
+        "static_url": "https://dontbulling.me/emoji/Firefox.gif",
+        "url": "https://dontbulling.me/emoji/Firefox.gif",
+        "visible_in_picker": false
+      }
+    ],
+    "id": "13",
+    "unread": true
+  },
+  {
+    "account_id": "someflakeid",
+    "chat_id": "1",
+    "content": "Whats' up?",
+    "created_at": "2020-04-21T15:06:45.000Z",
+    "emojis": [],
+    "id": "12",
+    "unread": false
+  }
+]
+```
+
+### Posting a chat message
+
+Posting a chat message for given Chat id works like this:
+
+`POST /api/v1/pleroma/chats/:id/messages`
+
+Parameters:
+- content: The text content of the message. Optional if media is attached.
+- media_id: The id of an upload that will be attached to the message.
+
+Currently, no formatting beyond basic escaping and emoji is implemented.
+
+Returned data:
+
+```json
+{
+  "account_id": "someflakeid",
+  "chat_id": "1",
+  "content": "Check this out :firefox:",
+  "created_at": "2020-04-21T15:11:46.000Z",
+  "emojis": [
+    {
+      "shortcode": "firefox",
+      "static_url": "https://dontbulling.me/emoji/Firefox.gif",
+      "url": "https://dontbulling.me/emoji/Firefox.gif",
+      "visible_in_picker": false
+    }
+  ],
+  "id": "13",
+  "unread": false
+}
+```
+
+### Deleting a chat message
+
+Deleting a chat message for given Chat id works like this:
+
+`DELETE /api/v1/pleroma/chats/:chat_id/messages/:message_id`
+
+Returned data is the deleted message.
+
+### Notifications
+
+There's a new `pleroma:chat_mention` notification, which has this form. It is not given out in the notifications endpoint by default, you need to explicitly request it with `include_types[]=pleroma:chat_mention`:
+
+```json
+{
+  "id": "someid",
+  "type": "pleroma:chat_mention",
+  "account": { ... } // User account of the sender,
+  "chat_message": {
+    "chat_id": "1",
+    "id": "10",
+    "content": "Hello",
+    "account_id": "someflakeid",
+    "unread": false
+  },
+  "created_at": "somedate"
+}
+```
+
+### Streaming
+
+There is an additional `user:pleroma_chat` stream. Incoming chat messages will make the current chat be sent to this `user` stream. The `event` of an incoming chat message is `pleroma:chat_update`. The payload is the updated chat with the incoming chat message in the `last_message` field.
+
+### Web Push
+
+If you want to receive push messages for this type, you'll need to add the `pleroma:chat_mention` type to your alerts in the push subscription.

docs/API/differences_in_mastoapi_responses.md

@@ -230,3 +230,7 @@ Has theses additional parameters (which are the same as in Pleroma-API):
 Has these additional fields under the `pleroma` object:
 
 - `unread_count`: contains number unread notifications
+
+## Streaming
+
+There is an additional `user:pleroma_chat` stream. Incoming chat messages will make the current chat be sent to this `user` stream. The `event` of an incoming chat message is `pleroma:chat_update`. The payload is the updated chat with the incoming chat message in the `last_message` field.

docs/API/pleroma_api.md

@@ -450,18 +450,44 @@ The status posting endpoint takes an additional parameter, `in_reply_to_conversa
 * Response: JSON, list with updated files for updated pack (hashmap -> shortcode => filename) with status 200, either error status with error message.
 
 ## `GET /api/pleroma/emoji/packs`
+
 ### Lists local custom emoji packs
+
 * Method `GET`
 * Authentication: not required
-* Params: None
+* Params:
-* Response: JSON, "ok" and 200 status and the JSON hashmap of pack name to pack contents
+  * `page`: page number for packs (default 1)
+  * `page_size`: page size for packs (default 50)
+* Response: `packs` key with JSON hashmap of pack name to pack contents and `count` key for count of packs.
+
+```json
+{
+  "packs": {
+    "pack_name": {...}, // pack contents
+    ...
+  },
+  "count": 0 // packs count
+}
+```
 
 ## `GET /api/pleroma/emoji/packs/:name`
+
 ### Get pack.json for the pack
+
 * Method `GET`
 * Authentication: not required
-* Params: None
+* Params:
-* Response: JSON, pack json with `files` and `pack` keys with 200 status or 404 if the pack does not exist
+  * `page`: page number for files (default 1)
+  * `page_size`: page size for files (default 30)
+* Response: JSON, pack json with `files`, `files_count` and `pack` keys with 200 status or 404 if the pack does not exist.
+
+```json
+{
+  "files": {...},
+  "files_count": 0, // emoji count in pack
+  "pack": {...}
+}
+```
 
 ## `GET /api/pleroma/emoji/packs/:name/archive`
 ### Requests a local pack archive from the instance

docs/administration/CLI_tasks/emoji.md

@@ -44,3 +44,11 @@ Currently, only .zip archives are recognized as remote pack files and packs are
   The manifest entry will either be written to a newly created `pack_name.json` file (pack name is asked in questions) or appended to the existing one, *replacing* the old pack with the same name if it was in the file previously.
 
   The file list will be written to the file specified previously, *replacing* that file. You _should_ check that the file list doesn't contain anything you don't need in the pack, that is, anything that is not an emoji (the whole pack is downloaded, but only emoji files are extracted).
+
+## Reload emoji packs
+
+```sh tab="OTP"
+./bin/pleroma_ctl emoji reload
+```
+
+This command only works with OTP releases.

docs/administration/CLI_tasks/user.md

@@ -135,6 +135,16 @@ mix pleroma.user reset_password <nickname>
 ```
 
 
+## Disable Multi Factor Authentication (MFA/2FA) for a user
+```sh tab="OTP"
+ ./bin/pleroma_ctl user reset_mfa <nickname>
+```
+
+```sh tab="From Source"
+mix pleroma.user reset_mfa <nickname>
+```
+
+
 ## Set the value of the given user's settings
 ```sh tab="OTP"
  ./bin/pleroma_ctl user set <nickname> [option ...]

docs/ap_extensions.md

@@ -0,0 +1,35 @@
+# ChatMessages
+
+ChatMessages are the messages sent in 1-on-1 chats. They are similar to
+`Note`s, but the addresing is done by having a single AP actor in the `to`
+field. Addressing multiple actors is not allowed. These messages are always
+private, there is no public version of them. They are created with a `Create`
+activity.
+
+Example:
+
+```json
+{
+  "actor": "http://2hu.gensokyo/users/raymoo",
+  "id": "http://2hu.gensokyo/objects/1",
+  "object": {
+    "attributedTo": "http://2hu.gensokyo/users/raymoo",
+    "content": "You expected a cute girl? Too bad.",
+    "id": "http://2hu.gensokyo/objects/2",
+    "published": "2020-02-12T14:08:20Z",
+    "to": [
+      "http://2hu.gensokyo/users/marisa"
+    ],
+    "type": "ChatMessage"
+  },
+  "published": "2018-02-12T14:08:20Z",
+  "to": [
+    "http://2hu.gensokyo/users/marisa"
+  ],
+  "type": "Create"
+}
+```
+
+This setup does not prevent multi-user chats, but these will have to go through
+a `Group`, which will be the recipient of the messages and then `Announce` them
+to the users in the `Group`.

docs/configuration/cheatsheet.md

@@ -36,30 +36,15 @@ To add configuration to your config file, you can copy it from the base config.
 * `federation_incoming_replies_max_depth`: Max. depth of reply-to activities fetching on incoming federation, to prevent out-of-memory situations while fetching very long threads. If set to `nil`, threads of any depth will be fetched. Lower this value if you experience out-of-memory crashes.
 * `federation_reachability_timeout_days`: Timeout (in days) of each external federation target being unreachable prior to pausing federating to it.
 * `allow_relay`: Enable Pleroma’s Relay, which makes it possible to follow a whole instance.
-* `rewrite_policy`: Message Rewrite Policy, either one or a list. Here are the ones available by default:
+* `public`: Makes the client API in authenticated mode-only except for user-profiles. Useful for disabling the Local Timeline and The Whole Known Network.
-    * `Pleroma.Web.ActivityPub.MRF.NoOpPolicy`: Doesn’t modify activities (default).
-    * `Pleroma.Web.ActivityPub.MRF.DropPolicy`: Drops all activities. It generally doesn’t makes sense to use in production.
-    * `Pleroma.Web.ActivityPub.MRF.SimplePolicy`: Restrict the visibility of activities from certains instances (See [`:mrf_simple`](#mrf_simple)).
-    * `Pleroma.Web.ActivityPub.MRF.TagPolicy`: Applies policies to individual users based on tags, which can be set using pleroma-fe/admin-fe/any other app that supports Pleroma Admin API. For example it allows marking posts from individual users nsfw (sensitive).
-    * `Pleroma.Web.ActivityPub.MRF.SubchainPolicy`: Selectively runs other MRF policies when messages match (See [`:mrf_subchain`](#mrf_subchain)).
-    * `Pleroma.Web.ActivityPub.MRF.RejectNonPublic`: Drops posts with non-public visibility settings (See [`:mrf_rejectnonpublic`](#mrf_rejectnonpublic)).
-    * `Pleroma.Web.ActivityPub.MRF.EnsureRePrepended`: Rewrites posts to ensure that replies to posts with subjects do not have an identical subject and instead begin with re:.
-    * `Pleroma.Web.ActivityPub.MRF.AntiLinkSpamPolicy`: Rejects posts from likely spambots by rejecting posts from new users that contain links.
-    * `Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy`: Crawls attachments using their MediaProxy URLs so that the MediaProxy cache is primed.
-    * `Pleroma.Web.ActivityPub.MRF.MentionPolicy`: Drops posts mentioning configurable users. (See [`:mrf_mention`](#mrf_mention)).
-    * `Pleroma.Web.ActivityPub.MRF.VocabularyPolicy`: Restricts activities to a configured set of vocabulary. (See [`:mrf_vocabulary`](#mrf_vocabulary)).
-    * `Pleroma.Web.ActivityPub.MRF.ObjectAgePolicy`: Rejects or delists posts based on their age when received. (See [`:mrf_object_age`](#mrf_object_age)).
-* `public`: Makes the client API in authentificated mode-only except for user-profiles. Useful for disabling the Local Timeline and The Whole Known Network.
 * `quarantined_instances`: List of ActivityPub instances where private(DMs, followers-only) activities will not be send.
 * `managed_config`: Whenether the config for pleroma-fe is configured in [:frontend_configurations](#frontend_configurations) or in ``static/config.json``.
 * `allowed_post_formats`: MIME-type list of formats allowed to be posted (transformed into HTML).
-* `mrf_transparency`: Make the content of your Message Rewrite Facility settings public (via nodeinfo).
-* `mrf_transparency_exclusions`: Exclude specific instance names from MRF transparency.  The use of the exclusions feature will be disclosed in nodeinfo as a boolean value.
 * `extended_nickname_format`: Set to `true` to use extended local nicknames format (allows underscores/dashes). This will break federation with
     older software for theses nicknames.
 * `max_pinned_statuses`: The maximum number of pinned statuses. `0` will disable the feature.
 * `autofollowed_nicknames`: Set to nicknames of (local) users that every new user should automatically follow.
-* `no_attachment_links`: Set to true to disable automatically adding attachment link text to statuses.
+* `attachment_links`: Set to true to enable automatically adding attachment link text to statuses.
 * `welcome_message`: A message that will be send to a newly registered users as a direct message.
 * `welcome_user_nickname`: The nickname of the local user that sends the welcome message.
 * `max_report_comment_size`: The maximum size of the report comment (Default: `1000`).
@@ -77,11 +62,30 @@ To add configuration to your config file, you can copy it from the base config.
 * `external_user_synchronization`: Enabling following/followers counters synchronization for external users.
 * `cleanup_attachments`: Remove attachments along with statuses. Does not affect duplicate files and attachments without status. Enabling this will increase load to database when deleting statuses on larger instances.
 
+## Message rewrite facility
+
+### :mrf
+* `policies`: Message Rewrite Policy, either one or a list. Here are the ones available by default:
+    * `Pleroma.Web.ActivityPub.MRF.NoOpPolicy`: Doesn’t modify activities (default).
+    * `Pleroma.Web.ActivityPub.MRF.DropPolicy`: Drops all activities. It generally doesn’t makes sense to use in production.
+    * `Pleroma.Web.ActivityPub.MRF.SimplePolicy`: Restrict the visibility of activities from certains instances (See [`:mrf_simple`](#mrf_simple)).
+    * `Pleroma.Web.ActivityPub.MRF.TagPolicy`: Applies policies to individual users based on tags, which can be set using pleroma-fe/admin-fe/any other app that supports Pleroma Admin API. For example it allows marking posts from individual users nsfw (sensitive).
+    * `Pleroma.Web.ActivityPub.MRF.SubchainPolicy`: Selectively runs other MRF policies when messages match (See [`:mrf_subchain`](#mrf_subchain)).
+    * `Pleroma.Web.ActivityPub.MRF.RejectNonPublic`: Drops posts with non-public visibility settings (See [`:mrf_rejectnonpublic`](#mrf_rejectnonpublic)).
+    * `Pleroma.Web.ActivityPub.MRF.EnsureRePrepended`: Rewrites posts to ensure that replies to posts with subjects do not have an identical subject and instead begin with re:.
+    * `Pleroma.Web.ActivityPub.MRF.AntiLinkSpamPolicy`: Rejects posts from likely spambots by rejecting posts from new users that contain links.
+    * `Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy`: Crawls attachments using their MediaProxy URLs so that the MediaProxy cache is primed.
+    * `Pleroma.Web.ActivityPub.MRF.MentionPolicy`: Drops posts mentioning configurable users. (See [`:mrf_mention`](#mrf_mention)).
+    * `Pleroma.Web.ActivityPub.MRF.VocabularyPolicy`: Restricts activities to a configured set of vocabulary. (See [`:mrf_vocabulary`](#mrf_vocabulary)).
+    * `Pleroma.Web.ActivityPub.MRF.ObjectAgePolicy`: Rejects or delists posts based on their age when received. (See [`:mrf_object_age`](#mrf_object_age)).
+* `transparency`: Make the content of your Message Rewrite Facility settings public (via nodeinfo).
+* `transparency_exclusions`: Exclude specific instance names from MRF transparency.  The use of the exclusions feature will be disclosed in nodeinfo as a boolean value.
+
 ## Federation
 ### MRF policies
 
 !!! note
-    Configuring MRF policies is not enough for them to take effect. You have to enable them by specifying their module in `rewrite_policy` under [:instance](#instance) section.
+    Configuring MRF policies is not enough for them to take effect. You have to enable them by specifying their module in `policies` under [:mrf](#mrf) section.
 
 #### :mrf_simple
 * `media_removal`: List of instances to remove media from.
@@ -137,8 +141,9 @@ their ActivityPub ID.
 An example:
 
 ```elixir
-config :pleroma, :mrf_user_allowlist,
+config :pleroma, :mrf_user_allowlist, %{
-  "example.org": ["https://example.org/users/admin"]
+  "example.org" => ["https://example.org/users/admin"]
+}
 ```
 
 #### :mrf_object_age
@@ -154,6 +159,10 @@ config :pleroma, :mrf_user_allowlist,
 * `rejected_shortcodes`: Regex-list of shortcodes to reject
 * `size_limit`: File size limit (in bytes), checked before an emoji is saved to the disk
 
+#### :mrf_activity_expiration
+
+* `days`: Default global expiration time for all local Create activities (in days)
+
 ### :activitypub
 * `unfollow_blocked`: Whether blocks result in people getting unfollowed
 * `outgoing_blocks`: Whether to federate blocks to other instances
@@ -262,7 +271,7 @@ This section describe PWA manifest instance-specific values. Currently this opti
 
 #### Pleroma.Web.MediaProxy.Invalidation.Script
 
-This strategy allow perform external bash script to purge cache.
+This strategy allow perform external shell script to purge cache.
 Urls of attachments pass to script as arguments.
 
 * `script_path`: path to external script.
@@ -278,8 +287,8 @@ config :pleroma, Pleroma.Web.MediaProxy.Invalidation.Script,
 This strategy allow perform custom http request to purge cache.
 
 * `method`: http method. default is `purge`
-* `headers`: http headers. default is empty
+* `headers`: http headers.
-* `options`: request options. default is empty
+* `options`: request options.
 
 Example:
 ```elixir
@@ -963,13 +972,13 @@ config :pleroma, :database_config_whitelist, [
 
 Restrict access for unauthenticated users to timelines (public and federate), user profiles and statuses.
 
-* `timelines` - public and federated timelines
+* `timelines`: public and federated timelines
-  * `local` - public timeline
+  * `local`: public timeline
   * `federated`
-* `profiles` - user profiles
+* `profiles`: user profiles
   * `local`
   * `remote`
-* `activities` - statuses
+* `activities`: statuses
   * `local`
   * `remote`
 

docs/configuration/howto_theming_your_instance.md

@@ -60,7 +60,7 @@ Example of `my-awesome-theme.json` where we add the name "My Awesome Theme"
 
 ### Set as default theme
 
-Now we can set the new theme as default in the [Pleroma FE configuration](General-tips-for-customizing-Pleroma-FE.md).
+Now we can set the new theme as default in the [Pleroma FE configuration](../../../frontend/CONFIGURATION).
 
 Example of adding the new theme in the back-end config files
 ```elixir

docs/configuration/mrf.md

@@ -34,9 +34,9 @@ config :pleroma, :instance,
 To use `SimplePolicy`, you must enable it. Do so by adding the following to your `:instance` config object, so that it looks like this:
 
 ```elixir
-config :pleroma, :instance,
+config :pleroma, :mrf,
   [...]
-  rewrite_policy: Pleroma.Web.ActivityPub.MRF.SimplePolicy
+  policies: Pleroma.Web.ActivityPub.MRF.SimplePolicy
 ```
 
 Once `SimplePolicy` is enabled, you can configure various groups in the `:mrf_simple` config object. These groups are:
@@ -58,8 +58,8 @@ Servers should be configured as lists.
 This example will enable `SimplePolicy`, block media from `illegalporn.biz`, mark media as NSFW from `porn.biz` and `porn.business`, reject messages from `spam.com`, remove messages from `spam.university` from the federated timeline and block reports (flags) from `whiny.whiner`:
 
 ```elixir
-config :pleroma, :instance,
+config :pleroma, :mrf,
-  rewrite_policy: [Pleroma.Web.ActivityPub.MRF.SimplePolicy]
+  policies: [Pleroma.Web.ActivityPub.MRF.SimplePolicy]
 
 config :pleroma, :mrf_simple,
   media_removal: ["illegalporn.biz"],
@@ -75,7 +75,7 @@ The effects of MRF policies can be very drastic. It is important to use this fun
 
 ## Writing your own MRF Policy
 
-As discussed above, the MRF system is a modular system that supports pluggable policies. This means that an admin may write a custom MRF policy in Elixir or any other language that runs on the Erlang VM, by specifying the module name in the `rewrite_policy` config setting.
+As discussed above, the MRF system is a modular system that supports pluggable policies. This means that an admin may write a custom MRF policy in Elixir or any other language that runs on the Erlang VM, by specifying the module name in the `policies` config setting.
 
 For example, here is a sample policy module which rewrites all messages to "new message content":
 
@@ -125,8 +125,8 @@ end
 If you save this file as `lib/pleroma/web/activity_pub/mrf/rewrite_policy.ex`, it will be included when you next rebuild Pleroma.  You can enable it in the configuration like so:
 
 ```elixir
-config :pleroma, :instance,
+config :pleroma, :mrf,
-  rewrite_policy: [
+  policies: [
     Pleroma.Web.ActivityPub.MRF.SimplePolicy,
     Pleroma.Web.ActivityPub.MRF.RewritePolicy
   ]

docs/configuration/storing_remote_media.md

@@ -33,6 +33,6 @@ as soon as the post is received by your instance.
 Add to your `prod.secret.exs`:
 
 ```
-config :pleroma, :instance,
+config :pleroma, :mrf,
-  rewrite_policy: [Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy]
+  policies: [Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy]
 ```

docs/dev.md

@@ -20,4 +20,4 @@ This document contains notes and guidelines for Pleroma developers.
 
 ## Auth-related configuration, OAuth consumer mode etc.
 
-See `Authentication` section of [`docs/configuration/cheatsheet.md`](docs/configuration/cheatsheet.md#authentication).
+See `Authentication` section of [the configuration cheatsheet](configuration/cheatsheet.md#authentication).

docs/index.md

@@ -0,0 +1,26 @@
+# Introduction to Pleroma
+## What is Pleroma?
+Pleroma is a federated social networking platform, compatible with Mastodon and other ActivityPub implementations. It is free software licensed under the AGPLv3.
+It actually consists of two components: a backend, named simply Pleroma, and a user-facing frontend, named Pleroma-FE. It also includes the Mastodon frontend, if that's your thing.
+It's part of what we call the fediverse, a federated network of instances which speak common protocols and can communicate with each other.
+One account on an instance is enough to talk to the entire fediverse!
+
+## How can I use it?
+
+Pleroma instances are already widely deployed, a list can be found at <https://the-federation.info/pleroma> and <https://fediverse.network/pleroma>.
+
+If you don't feel like joining an existing instance, but instead prefer to deploy your own instance, that's easy too!
+Installation instructions can be found in the installation section of these docs.
+
+## I got an account, now what?
+Great! Now you can explore the fediverse! Open the login page for your Pleroma instance (e.g. <https://pleroma.soykaf.com>) and login with your username and password. (If you don't have an account yet, click on Register)
+
+### Pleroma-FE
+The default front-end used by Pleroma is Pleroma-FE. You can find more information on what it is and how to use it in the [Introduction to Pleroma-FE](../frontend).
+
+### Mastodon interface
+If the Pleroma interface isn't your thing, or you're just trying something new but you want to keep using the familiar Mastodon interface, we got that too!
+Just add a "/web" after your instance url (e.g. <https://pleroma.soycaf.com/web>) and you'll end on the Mastodon web interface, but with a Pleroma backend! MAGIC!
+The Mastodon interface is from the Glitch-soc fork. For more information on the Mastodon interface you can check the [Mastodon](https://docs.joinmastodon.org/) and [Glitch-soc](https://glitch-soc.github.io/docs/) documentation.
+
+Remember, what you see is only the frontend part of Mastodon, the backend is still Pleroma.

docs/installation/alpine_linux_en.md

@@ -225,10 +225,7 @@ sudo -Hu pleroma MIX_ENV=prod mix pleroma.user new <username> <your@emailaddress
 
 #### Further reading
 
-* [Backup your instance](../administration/backup.md)
+{! backend/installation/further_reading.include !}
-* [Hardening your instance](../configuration/hardening.md)
-* [How to activate mediaproxy](../configuration/howto_mediaproxy.md)
-* [Updating your instance](../administration/updating.md)
 
 ## Questions
 

docs/installation/arch_linux_en.md

@@ -200,10 +200,7 @@ sudo -Hu pleroma MIX_ENV=prod mix pleroma.user new <username> <your@emailaddress
 
 #### Further reading
 
-* [Backup your instance](../administration/backup.md)
+{! backend/installation/further_reading.include !}
-* [Hardening your instance](../configuration/hardening.md)
-* [How to activate mediaproxy](../configuration/howto_mediaproxy.md)
-* [Updating your instance](../administration/updating.md)
 
 ## Questions
 

docs/installation/debian_based_en.md

@@ -186,10 +186,7 @@ sudo -Hu pleroma MIX_ENV=prod mix pleroma.user new <username> <your@emailaddress
 
 #### Further reading
 
-* [Backup your instance](../administration/backup.md)
+{! backend/installation/further_reading.include !}
-* [Hardening your instance](../configuration/hardening.md)
-* [How to activate mediaproxy](../configuration/howto_mediaproxy.md)
-* [Updating your instance](../administration/updating.md)
 
 ## Questions
 

docs/installation/debian_based_jp.md

@@ -175,10 +175,7 @@ sudo -Hu pleroma MIX_ENV=prod mix pleroma.user new <username> <your@emailaddress
 
 #### その他の設定とカスタマイズ
 
-* [Backup your instance](../administration/backup.md)
+{! backend/installation/further_reading.include !}
-* [Hardening your instance](../configuration/hardening.md)
-* [How to activate mediaproxy](../configuration/howto_mediaproxy.md)
-* [Updating your instance](../administration/updating.md)
 
 ## 質問ある？
 

docs/installation/further_reading.include

@@ -0,0 +1,5 @@
+* [How Federation Works/Why is my Federated Timeline empty?](https://blog.soykaf.com/post/how-federation-works/)
+* [Backup your instance](../administration/backup.md)
+* [Updating your instance](../administration/updating.md)
+* [Hardening your instance](../configuration/hardening.md)
+* [How to activate mediaproxy](../configuration/howto_mediaproxy.md)

docs/installation/gentoo_en.md

@@ -283,10 +283,7 @@ If you opted to allow sudo for the `pleroma` user but would like to remove the a
 
 #### Further reading
 
-* [Backup your instance](../administration/backup.md)
+{! backend/installation/further_reading.include !}
-* [Hardening your instance](../configuration/hardening.md)
-* [How to activate mediaproxy](../configuration/howto_mediaproxy.md)
-* [Updating your instance](../administration/updating.md)
 
 ## Questions
 

docs/installation/netbsd_en.md

@@ -196,3 +196,11 @@ incorrect timestamps. You should have ntpd running.
 ## Instances running NetBSD
 
 * <https://catgirl.science>
+
+#### Further reading
+
+{! backend/installation/further_reading.include !}
+
+## Questions
+
+Questions about the installation or didn’t it work as it should be, ask in [#pleroma:matrix.org](https://matrix.heldscal.la/#/room/#freenode_#pleroma:matrix.org) or IRC Channel **#pleroma** on **Freenode**.

docs/installation/openbsd_en.md

@@ -242,3 +242,11 @@ If your instance is up and running, you can create your first user with administ
 ```
 LC_ALL=en_US.UTF-8 MIX_ENV=prod mix pleroma.user new <username> <your@emailaddress> --admin
 ```
+
+#### Further reading
+
+{! backend/installation/further_reading.include !}
+
+## Questions
+
+Questions about the installation or didn’t it work as it should be, ask in [#pleroma:matrix.org](https://matrix.heldscal.la/#/room/#freenode_#pleroma:matrix.org) or IRC Channel **#pleroma** on **Freenode**.

docs/installation/otp_en.md

@@ -270,10 +270,7 @@ This will create an account withe the username of 'joeuser' with the email addre
 
 ## Further reading
 
-* [Backup your instance](../administration/backup.md)
+{! backend/installation/further_reading.include !}
-* [Hardening your instance](../configuration/hardening.md)
-* [How to activate mediaproxy](../configuration/howto_mediaproxy.md)
-* [Updating your instance](../administration/updating.md)
 
 ## Questions
 

docs/introduction.md

@@ -1,65 +0,0 @@
-# Introduction to Pleroma
-## What is Pleroma?
-Pleroma is a federated social networking platform, compatible with GNU social, Mastodon and other OStatus and ActivityPub implementations. It is free software licensed under the AGPLv3.
-It actually consists of two components: a backend, named simply Pleroma, and a user-facing frontend, named Pleroma-FE. It also includes the Mastodon frontend, if that's your thing.
-It's part of what we call the fediverse, a federated network of instances which speak common protocols and can communicate with each other.
-One account on an instance is enough to talk to the entire fediverse!
-
-## How can I use it?
-
-Pleroma instances are already widely deployed, a list can be found at <http://distsn.org/pleroma-instances.html>. Information on all existing fediverse instances can be found at <https://fediverse.network/>.
-
-If you don't feel like joining an existing instance, but instead prefer to deploy your own instance, that's easy too!
-Installation instructions can be found in the installation section of these docs.
-
-## I got an account, now what?
-Great! Now you can explore the fediverse! Open the login page for your Pleroma instance (e.g. <https://pleroma.soykaf.com>) and login with your username and password. (If you don't have an account yet, click on Register)
-
-At this point you will have two columns in front of you.
-
-### Left column
-
-- first block: here you can see your avatar, your nickname and statistics (Statuses, Following, Followers). Clicking your profile pic will open your profile.
-Under that you have a text form which allows you to post new statuses. The number on the bottom of the text form is a character counter, every instance can have a different character limit (the default is 5000).
-If you want to mention someone, type @ + name of the person. A drop-down menu will help you in finding the right person.
-Under the text form there are also several visibility options and there is the option to use rich text.
-Under that the icon on the left is for uploading media files and attach them to your post. There is also an emoji-picker and an option to post a poll.
-To post your status, simply press Submit.
-On the top right you will also see a wrench icon. This opens your personal settings.
-
-- second block: Here you can switch between the different timelines:
-   - Timeline: all the people that you follow
-   - Interactions: here you can switch between different timelines where there was interaction with your account. There is Mentions, Repeats and Favorites, and New follows
-   - Direct Messages: these are the Direct Messages sent to you
-   - Public Timeline: all the statutes from the local instance
-   - The Whole Known Network: all public posts the instance knows about, both local and remote!
-   - About: This isn't a Timeline but shows relevant info about the instance. You can find a list of the moderators and admins, Terms of Service, MRF policies and enabled features.
-- Optional third block: This is the Instance panel that can be activated, but is deactivated by default. It's fully customisable and by default has links to the pleroma-fe and Mastodon-fe.
-- fourth block: This is the Notifications block, here you will get notified whenever somebody mentions you, follows you, repeats or favorites one of your statuses.
-
-### Right column
-This is where the interesting stuff happens!
-Depending on the timeline you will see different statuses, but each status has a standard structure:
-
-- Profile pic, name and link to profile. An optional left-arrow if it's a reply to another status (hovering will reveal the reply-to status). Clicking on the profile pic will uncollapse the user's profile.
-- A `+` button on the right allows you to Expand/Collapse an entire discussion thread. It also updates in realtime!
-- An arrow icon allows you to open the status on the instance where it's originating from.
-- The text of the status, including mentions and attachements. If you click on a mention, it will automatically open the profile page of that person.
-- Three buttons (left to right): Reply, Repeat, Favorite. There is also a forth button, this is a dropdown menu for simple moderation like muting the conversation or, if you have moderation rights, delete the status from the server.
-
-### Top right
-
-- The magnifier icon opens the search screen where you can search for statuses, people and hashtags. It's also possible to import statusses from remote servers by pasting the url to the post in the search field.
-- The gear icon gives you general settings
-- If you have admin rights, you'll see an icon that opens the admin interface
-- The last icon is to log out
-
-### Bottom right
-On the bottom right you have a chatbox. Here you can communicate with people on the same instance in realtime. It is local-only, for now, but there are plans to make it extendable to the entire fediverse!
-
-### Mastodon interface
-If the Pleroma interface isn't your thing, or you're just trying something new but you want to keep using the familiar Mastodon interface, we got that too!
-Just add a "/web" after your instance url (e.g. <https://pleroma.soycaf.com/web>) and you'll end on the Mastodon web interface, but with a Pleroma backend! MAGIC!
-The Mastodon interface is from the Glitch-soc fork. For more information on the Mastodon interface you can check the [Mastodon](https://docs.joinmastodon.org/) and [Glitch-soc](https://glitch-soc.github.io/docs/) documentation.
-
-Remember, what you see is only the frontend part of Mastodon, the backend is still Pleroma.

elixir_buildpack.config

@@ -1,2 +1,2 @@
-elixir_version=1.8.2
+elixir_version=1.9.4
-erlang_version=21.3.7
+erlang_version=22.3.4.1

installation/nginx-cache-purge.sh.example

@@ -13,7 +13,7 @@ CACHE_DIRECTORY="/tmp/pleroma-media-cache"
 ## $3 - (optional) the number of parallel processes to run for grep.
 get_cache_files() {
     local max_parallel=${3-16}
-    find $2 -maxdepth 2 -type d | xargs -P $max_parallel -n 1 grep -E Rl "^KEY:.*$1" | sort -u
+    find $2 -maxdepth 2 -type d | xargs -P $max_parallel -n 1 grep -E -Rl "^KEY:.*$1" | sort -u
 }
 
 ## Removes an item from the given cache zone.
@@ -37,4 +37,4 @@ purge() {
 
 }
 
-purge $1
+purge $@

installation/pleroma.nginx

@@ -37,18 +37,17 @@ server {
 
     listen 443 ssl http2;
     listen [::]:443 ssl http2;
-    ssl_session_timeout 5m;
+    ssl_session_timeout 1d;
+    ssl_session_cache shared:MozSSL:10m;  # about 40000 sessions
+    ssl_session_tickets off;
 
     ssl_trusted_certificate   /etc/letsencrypt/live/example.tld/chain.pem;
     ssl_certificate           /etc/letsencrypt/live/example.tld/fullchain.pem;
     ssl_certificate_key       /etc/letsencrypt/live/example.tld/privkey.pem;
 
-    # Add TLSv1.0 to support older devices
+    ssl_protocols TLSv1.2 TLSv1.3;
-    ssl_protocols TLSv1.2;
-    # Uncomment line below if you want to support older devices (Before Android 4.4.2, IE 8, etc.)
-    # ssl_ciphers "HIGH:!aNULL:!MD5 or HIGH:!aNULL:!MD5:!3DES";
     ssl_ciphers "ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:!aNULL:!eNULL:!EXPORT:!DES:!MD5:!PSK:!RC4";
-    ssl_prefer_server_ciphers on;
+    ssl_prefer_server_ciphers off;
     # In case of an old server with an OpenSSL version of 1.0.2 or below,
     # leave only prime256v1 or comment out the following line.
     ssl_ecdh_curve X25519:prime256v1:secp384r1:secp521r1;

lib/mix/tasks/pleroma/config.ex

@@ -52,6 +52,7 @@ def migrate_to_db(file_path \\ nil) do
 
   defp do_migrate_to_db(config_file) do
     if File.exists?(config_file) do
+      shell_info("Migrating settings from file: #{Path.expand(config_file)}")
       Ecto.Adapters.SQL.query!(Repo, "TRUNCATE config;")
       Ecto.Adapters.SQL.query!(Repo, "ALTER SEQUENCE config_id_seq RESTART;")
 
@@ -72,8 +73,7 @@ defp create(group, settings) do
     group
     |> Pleroma.Config.Loader.filter_group(settings)
     |> Enum.each(fn {key, value} ->
-      key = inspect(key)
+      {:ok, _} = ConfigDB.update_or_create(%{group: group, key: key, value: value})
-      {:ok, _} = ConfigDB.update_or_create(%{group: inspect(group), key: key, value: value})
 
       shell_info("Settings for key #{key} migrated.")
     end)
@@ -131,12 +131,9 @@ defp write_and_delete(config, file, delete?) do
   end
 
   defp write(config, file) do
-    value =
+    value = inspect(config.value, limit: :infinity)
-      config.value
-      |> ConfigDB.from_binary()
-      |> inspect(limit: :infinity)
 
-    IO.write(file, "config #{config.group}, #{config.key}, #{value}\r\n\r\n")
+    IO.write(file, "config #{inspect(config.group)}, #{inspect(config.key)}, #{value}\r\n\r\n")
 
     config
   end

lib/mix/tasks/pleroma/emoji.ex

@@ -237,6 +237,12 @@ def run(["gen-pack" | args]) do
     end
   end
 
+  def run(["reload"]) do
+    start_pleroma()
+    Pleroma.Emoji.reload()
+    IO.puts("Emoji packs have been reloaded.")
+  end
+
   defp fetch_and_decode(from) do
     with {:ok, json} <- fetch(from) do
       Jason.decode!(json)

lib/mix/tasks/pleroma/user.ex

@@ -144,6 +144,18 @@ def run(["reset_password", nickname]) do
     end
   end
 
+  def run(["reset_mfa", nickname]) do
+    start_pleroma()
+
+    with %User{local: true} = user <- User.get_cached_by_nickname(nickname),
+         {:ok, _token} <- Pleroma.MFA.disable(user) do
+      shell_info("Multi-Factor Authentication disabled for #{user.nickname}")
+    else
+      _ ->
+        shell_error("No local user #{nickname}")
+    end
+  end
+
   def run(["deactivate", nickname]) do
     start_pleroma()
 

lib/pleroma/activity.ex

@@ -24,16 +24,6 @@ defmodule Pleroma.Activity do
 
   @primary_key {:id, FlakeId.Ecto.CompatType, autogenerate: true}
 
-  # https://github.com/tootsuite/mastodon/blob/master/app/models/notification.rb#L19
-  @mastodon_notification_types %{
-    "Create" => "mention",
-    "Follow" => ["follow", "follow_request"],
-    "Announce" => "reblog",
-    "Like" => "favourite",
-    "Move" => "move",
-    "EmojiReact" => "pleroma:emoji_reaction"
-  }
-
   schema "activities" do
     field(:data, :map)
     field(:local, :boolean, default: true)
@@ -41,6 +31,10 @@ defmodule Pleroma.Activity do
     field(:recipients, {:array, :string}, default: [])
     field(:thread_muted?, :boolean, virtual: true)
 
+    # A field that can be used if you need to join some kind of other
+    # id to order / paginate this field by
+    field(:pagination_id, :string, virtual: true)
+
     # This is a fake relation,
     # do not use outside of with_preloaded_user_actor/with_joined_user_actor
     has_one(:user_actor, User, on_delete: :nothing, foreign_key: :id)
@@ -300,32 +294,6 @@ def follow_accepted?(
 
   def follow_accepted?(_), do: false
 
-  @spec mastodon_notification_type(Activity.t()) :: String.t() | nil
-
-  for {ap_type, type} <- @mastodon_notification_types, not is_list(type) do
-    def mastodon_notification_type(%Activity{data: %{"type" => unquote(ap_type)}}),
-      do: unquote(type)
-  end
-
-  def mastodon_notification_type(%Activity{data: %{"type" => "Follow"}} = activity) do
-    if follow_accepted?(activity) do
-      "follow"
-    else
-      "follow_request"
-    end
-  end
-
-  def mastodon_notification_type(%Activity{}), do: nil
-
-  @spec from_mastodon_notification_type(String.t()) :: String.t() | nil
-  @doc "Converts Mastodon notification type to AR activity type"
-  def from_mastodon_notification_type(type) do
-    with {k, _v} <-
-           Enum.find(@mastodon_notification_types, fn {_k, v} -> type in List.wrap(v) end) do
-      k
-    end
-  end
-
   def all_by_actor_and_id(actor, status_ids \\ [])
   def all_by_actor_and_id(_actor, []), do: []
 

lib/pleroma/application.ex

@@ -39,7 +39,7 @@ def start(_type, _args) do
     Pleroma.HTML.compile_scrubbers()
     Config.DeprecationWarnings.warn()
     Pleroma.Plugs.HTTPSecurityPlug.warn_if_disabled()
-    Pleroma.Repo.check_migrations_applied!()
+    Pleroma.ApplicationRequirements.verify!()
     setup_instrumenters()
     load_custom_modules()
 
@@ -148,7 +148,8 @@ defp cachex_children do
       build_cachex("idempotency", expiration: idempotency_expiration(), limit: 2500),
       build_cachex("web_resp", limit: 2500),
       build_cachex("emoji_packs", expiration: emoji_packs_expiration(), limit: 10),
-      build_cachex("failed_proxy_url", limit: 2500)
+      build_cachex("failed_proxy_url", limit: 2500),
+      build_cachex("banned_urls", default_ttl: :timer.hours(24 * 30), limit: 5_000)
     ]
   end
 

lib/pleroma/application_requirements.ex

@@ -0,0 +1,107 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.ApplicationRequirements do
+  @moduledoc """
+  The module represents the collection of validations to runs before start server.
+  """
+
+  defmodule VerifyError, do: defexception([:message])
+
+  import Ecto.Query
+
+  require Logger
+
+  @spec verify!() :: :ok | VerifyError.t()
+  def verify! do
+    :ok
+    |> check_migrations_applied!()
+    |> check_rum!()
+    |> handle_result()
+  end
+
+  defp handle_result(:ok), do: :ok
+  defp handle_result({:error, message}), do: raise(VerifyError, message: message)
+
+  # Checks for pending migrations.
+  #
+  def check_migrations_applied!(:ok) do
+    unless Pleroma.Config.get(
+             [:i_am_aware_this_may_cause_data_loss, :disable_migration_check],
+             false
+           ) do
+      {_, res, _} =
+        Ecto.Migrator.with_repo(Pleroma.Repo, fn repo ->
+          down_migrations =
+            Ecto.Migrator.migrations(repo)
+            |> Enum.reject(fn
+              {:up, _, _} -> true
+              {:down, _, _} -> false
+            end)
+
+          if length(down_migrations) > 0 do
+            down_migrations_text =
+              Enum.map(down_migrations, fn {:down, id, name} -> "- #{name} (#{id})\n" end)
+
+            Logger.error(
+              "The following migrations were not applied:\n#{down_migrations_text}If you want to start Pleroma anyway, set\nconfig :pleroma, :i_am_aware_this_may_cause_data_loss, disable_migration_check: true"
+            )
+
+            {:error, "Unapplied Migrations detected"}
+          else
+            :ok
+          end
+        end)
+
+      res
+    else
+      :ok
+    end
+  end
+
+  def check_migrations_applied!(result), do: result
+
+  # Checks for settings of RUM indexes.
+  #
+  defp check_rum!(:ok) do
+    {_, res, _} =
+      Ecto.Migrator.with_repo(Pleroma.Repo, fn repo ->
+        migrate =
+          from(o in "columns",
+            where: o.table_name == "objects",
+            where: o.column_name == "fts_content"
+          )
+          |> repo.exists?(prefix: "information_schema")
+
+        setting = Pleroma.Config.get([:database, :rum_enabled], false)
+
+        do_check_rum!(setting, migrate)
+      end)
+
+    res
+  end
+
+  defp check_rum!(result), do: result
+
+  defp do_check_rum!(setting, migrate) do
+    case {setting, migrate} do
+      {true, false} ->
+        Logger.error(
+          "Use `RUM` index is enabled, but were not applied migrations for it.\nIf you want to start Pleroma anyway, set\nconfig :pleroma, :database, rum_enabled: false\nOtherwise apply the following migrations:\n`mix ecto.migrate --migrations-path priv/repo/optional_migrations/rum_indexing/`"
+        )
+
+        {:error, "Unapplied RUM Migrations detected"}
+
+      {false, true} ->
+        Logger.error(
+          "Detected applied migrations to use `RUM` index, but `RUM` isn't enable in settings.\nIf you want to use `RUM`, set\nconfig :pleroma, :database, rum_enabled: true\nOtherwise roll `RUM` migrations back.\n`mix ecto.rollback --migrations-path priv/repo/optional_migrations/rum_indexing/`"
+        )
+
+        {:error, "RUM Migrations detected"}
+
+      _ ->
+        :ok
+    end
+  end
+end

lib/pleroma/chat.ex

@@ -0,0 +1,72 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Chat do
+  use Ecto.Schema
+
+  import Ecto.Changeset
+
+  alias Pleroma.Repo
+  alias Pleroma.User
+
+  @moduledoc """
+  Chat keeps a reference to ChatMessage conversations between a user and an recipient. The recipient can be a user (for now) or a group (not implemented yet).
+
+  It is a helper only, to make it easy to display a list of chats with other people, ordered by last bump. The actual messages are retrieved by querying the recipients of the ChatMessages.
+  """
+
+  @primary_key {:id, FlakeId.Ecto.CompatType, autogenerate: true}
+
+  schema "chats" do
+    belongs_to(:user, User, type: FlakeId.Ecto.CompatType)
+    field(:recipient, :string)
+
+    timestamps()
+  end
+
+  def changeset(struct, params) do
+    struct
+    |> cast(params, [:user_id, :recipient])
+    |> validate_change(:recipient, fn
+      :recipient, recipient ->
+        case User.get_cached_by_ap_id(recipient) do
+          nil -> [recipient: "must be an existing user"]
+          _ -> []
+        end
+    end)
+    |> validate_required([:user_id, :recipient])
+    |> unique_constraint(:user_id, name: :chats_user_id_recipient_index)
+  end
+
+  def get_by_id(id) do
+    __MODULE__
+    |> Repo.get(id)
+  end
+
+  def get(user_id, recipient) do
+    __MODULE__
+    |> Repo.get_by(user_id: user_id, recipient: recipient)
+  end
+
+  def get_or_create(user_id, recipient) do
+    %__MODULE__{}
+    |> changeset(%{user_id: user_id, recipient: recipient})
+    |> Repo.insert(
+      # Need to set something, otherwise we get nothing back at all
+      on_conflict: [set: [recipient: recipient]],
+      returning: true,
+      conflict_target: [:user_id, :recipient]
+    )
+  end
+
+  def bump_or_create(user_id, recipient) do
+    %__MODULE__{}
+    |> changeset(%{user_id: user_id, recipient: recipient})
+    |> Repo.insert(
+      on_conflict: [set: [updated_at: NaiveDateTime.utc_now()]],
+      returning: true,
+      conflict_target: [:user_id, :recipient]
+    )
+  end
+end

lib/pleroma/chat/message_reference.ex

@@ -0,0 +1,117 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Chat.MessageReference do
+  @moduledoc """
+  A reference that builds a relation between an AP chat message that a user can see and whether it has been seen
+  by them, or should be displayed to them. Used to build the chat view that is presented to the user.
+  """
+
+  use Ecto.Schema
+
+  alias Pleroma.Chat
+  alias Pleroma.Object
+  alias Pleroma.Repo
+
+  import Ecto.Changeset
+  import Ecto.Query
+
+  @primary_key {:id, FlakeId.Ecto.Type, autogenerate: true}
+
+  schema "chat_message_references" do
+    belongs_to(:object, Object)
+    belongs_to(:chat, Chat, type: FlakeId.Ecto.CompatType)
+
+    field(:unread, :boolean, default: true)
+
+    timestamps()
+  end
+
+  def changeset(struct, params) do
+    struct
+    |> cast(params, [:object_id, :chat_id, :unread])
+    |> validate_required([:object_id, :chat_id, :unread])
+  end
+
+  def get_by_id(id) do
+    __MODULE__
+    |> Repo.get(id)
+    |> Repo.preload(:object)
+  end
+
+  def delete(cm_ref) do
+    cm_ref
+    |> Repo.delete()
+  end
+
+  def delete_for_object(%{id: object_id}) do
+    from(cr in __MODULE__,
+      where: cr.object_id == ^object_id
+    )
+    |> Repo.delete_all()
+  end
+
+  def for_chat_and_object(%{id: chat_id}, %{id: object_id}) do
+    __MODULE__
+    |> Repo.get_by(chat_id: chat_id, object_id: object_id)
+    |> Repo.preload(:object)
+  end
+
+  def for_chat_query(chat) do
+    from(cr in __MODULE__,
+      where: cr.chat_id == ^chat.id,
+      order_by: [desc: :id],
+      preload: [:object]
+    )
+  end
+
+  def last_message_for_chat(chat) do
+    chat
+    |> for_chat_query()
+    |> limit(1)
+    |> Repo.one()
+  end
+
+  def create(chat, object, unread) do
+    params = %{
+      chat_id: chat.id,
+      object_id: object.id,
+      unread: unread
+    }
+
+    %__MODULE__{}
+    |> changeset(params)
+    |> Repo.insert()
+  end
+
+  def unread_count_for_chat(chat) do
+    chat
+    |> for_chat_query()
+    |> where([cmr], cmr.unread == true)
+    |> Repo.aggregate(:count)
+  end
+
+  def mark_as_read(cm_ref) do
+    cm_ref
+    |> changeset(%{unread: false})
+    |> Repo.update()
+  end
+
+  def set_all_seen_for_chat(chat, last_read_id \\ nil) do
+    query =
+      chat
+      |> for_chat_query()
+      |> exclude(:order_by)
+      |> exclude(:preload)
+      |> where([cmr], cmr.unread == true)
+
+    if last_read_id do
+      query
+      |> where([cmr], cmr.id <= ^last_read_id)
+    else
+      query
+    end
+    |> Repo.update_all(set: [unread: false])
+  end
+end

lib/pleroma/config/config_db.ex

@@ -6,7 +6,7 @@ defmodule Pleroma.ConfigDB do
   use Ecto.Schema
 
   import Ecto.Changeset
-  import Ecto.Query
+  import Ecto.Query, only: [select: 3]
   import Pleroma.Web.Gettext
 
   alias __MODULE__
@@ -14,16 +14,6 @@ defmodule Pleroma.ConfigDB do
 
   @type t :: %__MODULE__{}
 
-  @full_key_update [
-    {:pleroma, :ecto_repos},
-    {:quack, :meta},
-    {:mime, :types},
-    {:cors_plug, [:max_age, :methods, :expose, :headers]},
-    {:auto_linker, :opts},
-    {:swarm, :node_blacklist},
-    {:logger, :backends}
-  ]
-
   @full_subkey_update [
     {:pleroma, :assets, :mascots},
     {:pleroma, :emoji, :groups},
@@ -32,14 +22,10 @@ defmodule Pleroma.ConfigDB do
     {:pleroma, :mrf_keyword, :replace}
   ]
 
-  @regex ~r/^~r(?'delimiter'[\/|"'([{<]{1})(?'pattern'.+)[\/|"')\]}>]{1}(?'modifier'[uismxfU]*)/u
-
-  @delimiters ["/", "|", "\"", "'", {"(", ")"}, {"[", "]"}, {"{", "}"}, {"<", ">"}]
-
   schema "config" do
-    field(:key, :string)
+    field(:key, Pleroma.EctoType.Config.Atom)
-    field(:group, :string)
+    field(:group, Pleroma.EctoType.Config.Atom)
-    field(:value, :binary)
+    field(:value, Pleroma.EctoType.Config.BinaryValue)
     field(:db, {:array, :string}, virtual: true, default: [])
 
     timestamps()
@@ -51,10 +37,6 @@ def get_all_as_keyword do
     |> select([c], {c.group, c.key, c.value})
     |> Repo.all()
     |> Enum.reduce([], fn {group, key, value}, acc ->
-      group = ConfigDB.from_string(group)
-      key = ConfigDB.from_string(key)
-      value = from_binary(value)
-
       Keyword.update(acc, group, [{key, value}], &Keyword.merge(&1, [{key, value}]))
     end)
   end
@@ -64,50 +46,41 @@ def get_by_params(params), do: Repo.get_by(ConfigDB, params)
 
   @spec changeset(ConfigDB.t(), map()) :: Changeset.t()
   def changeset(config, params \\ %{}) do
-    params = Map.put(params, :value, transform(params[:value]))
-
     config
     |> cast(params, [:key, :group, :value])
     |> validate_required([:key, :group, :value])
     |> unique_constraint(:key, name: :config_group_key_index)
   end
 
-  @spec create(map()) :: {:ok, ConfigDB.t()} | {:error, Changeset.t()}
+  defp create(params) do
-  def create(params) do
     %ConfigDB{}
     |> changeset(params)
     |> Repo.insert()
   end
 
-  @spec update(ConfigDB.t(), map()) :: {:ok, ConfigDB.t()} | {:error, Changeset.t()}
+  defp update(%ConfigDB{} = config, %{value: value}) do
-  def update(%ConfigDB{} = config, %{value: value}) do
     config
     |> changeset(%{value: value})
     |> Repo.update()
   end
 
-  @spec get_db_keys(ConfigDB.t()) :: [String.t()]
-  def get_db_keys(%ConfigDB{} = config) do
-    config.value
-    |> ConfigDB.from_binary()
-    |> get_db_keys(config.key)
-  end
-
   @spec get_db_keys(keyword(), any()) :: [String.t()]
   def get_db_keys(value, key) do
-    if Keyword.keyword?(value) do
+    keys =
-      value |> Keyword.keys() |> Enum.map(&convert(&1))
+      if Keyword.keyword?(value) do
-    else
+        Keyword.keys(value)
-      [convert(key)]
+      else
-    end
+        [key]
+      end
+
+    Enum.map(keys, &to_json_types(&1))
   end
 
   @spec merge_group(atom(), atom(), keyword(), keyword()) :: keyword()
   def merge_group(group, key, old_value, new_value) do
-    new_keys = to_map_set(new_value)
+    new_keys = to_mapset(new_value)
 
-    intersect_keys =
+    intersect_keys = old_value |> to_mapset() |> MapSet.intersection(new_keys) |> MapSet.to_list()
-      old_value |> to_map_set() |> MapSet.intersection(new_keys) |> MapSet.to_list()
 
     merged_value = ConfigDB.merge(old_value, new_value)
 
@@ -120,12 +93,10 @@ def merge_group(group, key, old_value, new_value) do
         []
     end)
     |> List.flatten()
-    |> Enum.reduce(merged_value, fn subkey, acc ->
+    |> Enum.reduce(merged_value, &Keyword.put(&2, &1, new_value[&1]))
-      Keyword.put(acc, subkey, new_value[subkey])
-    end)
   end
 
-  defp to_map_set(keyword) do
+  defp to_mapset(keyword) do
     keyword
     |> Keyword.keys()
     |> MapSet.new()
@@ -159,57 +130,55 @@ defp deep_merge(_key, value1, value2) do
 
   @spec update_or_create(map()) :: {:ok, ConfigDB.t()} | {:error, Changeset.t()}
   def update_or_create(params) do
+    params = Map.put(params, :value, to_elixir_types(params[:value]))
     search_opts = Map.take(params, [:group, :key])
 
     with %ConfigDB{} = config <- ConfigDB.get_by_params(search_opts),
-         {:partial_update, true, config} <-
+         {_, true, config} <- {:partial_update, can_be_partially_updated?(config), config},
-           {:partial_update, can_be_partially_updated?(config), config},
+         {_, true, config} <-
-         old_value <- from_binary(config.value),
+           {:can_be_merged, is_list(params[:value]) and is_list(config.value), config} do
-         transformed_value <- do_transform(params[:value]),
+      new_value = merge_group(config.group, config.key, config.value, params[:value])
-         {:can_be_merged, true, config} <- {:can_be_merged, is_list(transformed_value), config},
+      update(config, %{value: new_value})
-         new_value <-
-           merge_group(
-             ConfigDB.from_string(config.group),
-             ConfigDB.from_string(config.key),
-             old_value,
-             transformed_value
-           ) do
-      ConfigDB.update(config, %{value: new_value})
     else
       {reason, false, config} when reason in [:partial_update, :can_be_merged] ->
-        ConfigDB.update(config, params)
+        update(config, params)
 
       nil ->
-        ConfigDB.create(params)
+        create(params)
     end
   end
 
   defp can_be_partially_updated?(%ConfigDB{} = config), do: not only_full_update?(config)
 
-  defp only_full_update?(%ConfigDB{} = config) do
+  defp only_full_update?(%ConfigDB{group: group, key: key}) do
-    config_group = ConfigDB.from_string(config.group)
+    full_key_update = [
-    config_key = ConfigDB.from_string(config.key)
+      {:pleroma, :ecto_repos},
+      {:quack, :meta},
+      {:mime, :types},
+      {:cors_plug, [:max_age, :methods, :expose, :headers]},
+      {:auto_linker, :opts},
+      {:swarm, :node_blacklist},
+      {:logger, :backends}
+    ]
 
-    Enum.any?(@full_key_update, fn
+    Enum.any?(full_key_update, fn
-      {group, key} when is_list(key) ->
+      {s_group, s_key} ->
-        config_group == group and config_key in key
+        group == s_group and ((is_list(s_key) and key in s_key) or key == s_key)
-
-      {group, key} ->
-        config_group == group and config_key == key
     end)
   end
 
-  @spec delete(map()) :: {:ok, ConfigDB.t()} | {:error, Changeset.t()}
+  @spec delete(ConfigDB.t() | map()) :: {:ok, ConfigDB.t()} | {:error, Changeset.t()}
+  def delete(%ConfigDB{} = config), do: Repo.delete(config)
+
   def delete(params) do
     search_opts = Map.delete(params, :subkeys)
 
     with %ConfigDB{} = config <- ConfigDB.get_by_params(search_opts),
          {config, sub_keys} when is_list(sub_keys) <- {config, params[:subkeys]},
-         old_value <- from_binary(config.value),
+         keys <- Enum.map(sub_keys, &string_to_elixir_types(&1)),
-         keys <- Enum.map(sub_keys, &do_transform_string(&1)),
+         {_, config, new_value} when new_value != [] <-
-         {:partial_remove, config, new_value} when new_value != [] <-
+           {:partial_remove, config, Keyword.drop(config.value, keys)} do
-           {:partial_remove, config, Keyword.drop(old_value, keys)} do
+      update(config, %{value: new_value})
-      ConfigDB.update(config, %{value: new_value})
     else
       {:partial_remove, config, []} ->
         Repo.delete(config)
@@ -225,37 +194,32 @@ def delete(params) do
     end
   end
 
-  @spec from_binary(binary()) :: term()
+  @spec to_json_types(term()) :: map() | list() | boolean() | String.t()
-  def from_binary(binary), do: :erlang.binary_to_term(binary)
+  def to_json_types(entity) when is_list(entity) do
-
+    Enum.map(entity, &to_json_types/1)
-  @spec from_binary_with_convert(binary()) :: any()
-  def from_binary_with_convert(binary) do
-    binary
-    |> from_binary()
-    |> do_convert()
   end
 
-  @spec from_string(String.t()) :: atom() | no_return()
+  def to_json_types(%Regex{} = entity), do: inspect(entity)
-  def from_string(string), do: do_transform_string(string)
 
-  @spec convert(any()) :: any()
+  def to_json_types(entity) when is_map(entity) do
-  def convert(entity), do: do_convert(entity)
+    Map.new(entity, fn {k, v} -> {to_json_types(k), to_json_types(v)} end)
-
-  defp do_convert(entity) when is_list(entity) do
-    for v <- entity, into: [], do: do_convert(v)
   end
 
-  defp do_convert(%Regex{} = entity), do: inspect(entity)
+  def to_json_types({:args, args}) when is_list(args) do
+    arguments =
+      Enum.map(args, fn
+        arg when is_tuple(arg) -> inspect(arg)
+        arg -> to_json_types(arg)
+      end)
 
-  defp do_convert(entity) when is_map(entity) do
+    %{"tuple" => [":args", arguments]}
-    for {k, v} <- entity, into: %{}, do: {do_convert(k), do_convert(v)}
   end
 
-  defp do_convert({:proxy_url, {type, :localhost, port}}) do
+  def to_json_types({:proxy_url, {type, :localhost, port}}) do
-    %{"tuple" => [":proxy_url", %{"tuple" => [do_convert(type), "localhost", port]}]}
+    %{"tuple" => [":proxy_url", %{"tuple" => [to_json_types(type), "localhost", port]}]}
   end
 
-  defp do_convert({:proxy_url, {type, host, port}}) when is_tuple(host) do
+  def to_json_types({:proxy_url, {type, host, port}}) when is_tuple(host) do
     ip =
       host
       |> :inet_parse.ntoa()
@@ -264,66 +228,64 @@ defp do_convert({:proxy_url, {type, host, port}}) when is_tuple(host) do
     %{
       "tuple" => [
         ":proxy_url",
-        %{"tuple" => [do_convert(type), ip, port]}
+        %{"tuple" => [to_json_types(type), ip, port]}
       ]
     }
   end
 
-  defp do_convert({:proxy_url, {type, host, port}}) do
+  def to_json_types({:proxy_url, {type, host, port}}) do
     %{
       "tuple" => [
         ":proxy_url",
-        %{"tuple" => [do_convert(type), to_string(host), port]}
+        %{"tuple" => [to_json_types(type), to_string(host), port]}
       ]
     }
   end
 
-  defp do_convert({:partial_chain, entity}), do: %{"tuple" => [":partial_chain", inspect(entity)]}
+  def to_json_types({:partial_chain, entity}),
+    do: %{"tuple" => [":partial_chain", inspect(entity)]}
 
-  defp do_convert(entity) when is_tuple(entity) do
+  def to_json_types(entity) when is_tuple(entity) do
     value =
       entity
       |> Tuple.to_list()
-      |> do_convert()
+      |> to_json_types()
 
     %{"tuple" => value}
   end
 
-  defp do_convert(entity) when is_boolean(entity) or is_number(entity) or is_nil(entity) do
+  def to_json_types(entity) when is_binary(entity), do: entity
+
+  def to_json_types(entity) when is_boolean(entity) or is_number(entity) or is_nil(entity) do
     entity
   end
 
-  defp do_convert(entity)
+  def to_json_types(entity) when entity in [:"tlsv1.1", :"tlsv1.2", :"tlsv1.3"] do
-       when is_atom(entity) and entity in [:"tlsv1.1", :"tlsv1.2", :"tlsv1.3"] do
     ":#{entity}"
   end
 
-  defp do_convert(entity) when is_atom(entity), do: inspect(entity)
+  def to_json_types(entity) when is_atom(entity), do: inspect(entity)
 
-  defp do_convert(entity) when is_binary(entity), do: entity
+  @spec to_elixir_types(boolean() | String.t() | map() | list()) :: term()
+  def to_elixir_types(%{"tuple" => [":args", args]}) when is_list(args) do
+    arguments =
+      Enum.map(args, fn arg ->
+        if String.contains?(arg, ["{", "}"]) do
+          {elem, []} = Code.eval_string(arg)
+          elem
+        else
+          to_elixir_types(arg)
+        end
+      end)
 
-  @spec transform(any()) :: binary() | no_return()
+    {:args, arguments}
-  def transform(entity) when is_binary(entity) or is_map(entity) or is_list(entity) do
-    entity
-    |> do_transform()
-    |> to_binary()
   end
 
-  def transform(entity), do: to_binary(entity)
+  def to_elixir_types(%{"tuple" => [":proxy_url", %{"tuple" => [type, host, port]}]}) do
-
+    {:proxy_url, {string_to_elixir_types(type), parse_host(host), port}}
-  @spec transform_with_out_binary(any()) :: any()
-  def transform_with_out_binary(entity), do: do_transform(entity)
-
-  @spec to_binary(any()) :: binary()
-  def to_binary(entity), do: :erlang.term_to_binary(entity)
-
-  defp do_transform(%Regex{} = entity), do: entity
-
-  defp do_transform(%{"tuple" => [":proxy_url", %{"tuple" => [type, host, port]}]}) do
-    {:proxy_url, {do_transform_string(type), parse_host(host), port}}
   end
 
-  defp do_transform(%{"tuple" => [":partial_chain", entity]}) do
+  def to_elixir_types(%{"tuple" => [":partial_chain", entity]}) do
     {partial_chain, []} =
       entity
       |> String.replace(~r/[^\w|^{:,[|^,|^[|^\]^}|^\/|^\.|^"]^\s/, "")
@@ -332,25 +294,51 @@ defp do_transform(%{"tuple" => [":partial_chain", entity]}) do
     {:partial_chain, partial_chain}
   end
 
-  defp do_transform(%{"tuple" => entity}) do
+  def to_elixir_types(%{"tuple" => entity}) do
-    Enum.reduce(entity, {}, fn val, acc -> Tuple.append(acc, do_transform(val)) end)
+    Enum.reduce(entity, {}, &Tuple.append(&2, to_elixir_types(&1)))
   end
 
-  defp do_transform(entity) when is_map(entity) do
+  def to_elixir_types(entity) when is_map(entity) do
-    for {k, v} <- entity, into: %{}, do: {do_transform(k), do_transform(v)}
+    Map.new(entity, fn {k, v} -> {to_elixir_types(k), to_elixir_types(v)} end)
   end
 
-  defp do_transform(entity) when is_list(entity) do
+  def to_elixir_types(entity) when is_list(entity) do
-    for v <- entity, into: [], do: do_transform(v)
+    Enum.map(entity, &to_elixir_types/1)
   end
 
-  defp do_transform(entity) when is_binary(entity) do
+  def to_elixir_types(entity) when is_binary(entity) do
     entity
     |> String.trim()
-    |> do_transform_string()
+    |> string_to_elixir_types()
   end
 
-  defp do_transform(entity), do: entity
+  def to_elixir_types(entity), do: entity
+
+  @spec string_to_elixir_types(String.t()) ::
+          atom() | Regex.t() | module() | String.t() | no_return()
+  def string_to_elixir_types("~r" <> _pattern = regex) do
+    pattern =
+      ~r/^~r(?'delimiter'[\/|"'([{<]{1})(?'pattern'.+)[\/|"')\]}>]{1}(?'modifier'[uismxfU]*)/u
+
+    delimiters = ["/", "|", "\"", "'", {"(", ")"}, {"[", "]"}, {"{", "}"}, {"<", ">"}]
+
+    with %{"modifier" => modifier, "pattern" => pattern, "delimiter" => regex_delimiter} <-
+           Regex.named_captures(pattern, regex),
+         {:ok, {leading, closing}} <- find_valid_delimiter(delimiters, pattern, regex_delimiter),
+         {result, _} <- Code.eval_string("~r#{leading}#{pattern}#{closing}#{modifier}") do
+      result
+    end
+  end
+
+  def string_to_elixir_types(":" <> atom), do: String.to_atom(atom)
+
+  def string_to_elixir_types(value) do
+    if module_name?(value) do
+      String.to_existing_atom("Elixir." <> value)
+    else
+      value
+    end
+  end
 
   defp parse_host("localhost"), do: :localhost
 
@@ -387,27 +375,8 @@ defp find_valid_delimiter([delimiter | others], pattern, regex_delimiter) do
     end
   end
 
-  defp do_transform_string("~r" <> _pattern = regex) do
+  @spec module_name?(String.t()) :: boolean()
-    with %{"modifier" => modifier, "pattern" => pattern, "delimiter" => regex_delimiter} <-
+  def module_name?(string) do
-           Regex.named_captures(@regex, regex),
-         {:ok, {leading, closing}} <- find_valid_delimiter(@delimiters, pattern, regex_delimiter),
-         {result, _} <- Code.eval_string("~r#{leading}#{pattern}#{closing}#{modifier}") do
-      result
-    end
-  end
-
-  defp do_transform_string(":" <> atom), do: String.to_atom(atom)
-
-  defp do_transform_string(value) do
-    if is_module_name?(value) do
-      String.to_existing_atom("Elixir." <> value)
-    else
-      value
-    end
-  end
-
-  @spec is_module_name?(String.t()) :: boolean()
-  def is_module_name?(string) do
     Regex.match?(~r/^(Pleroma|Phoenix|Tesla|Quack|Ueberauth|Swoosh)\./, string) or
       string in ["Oban", "Ueberauth", "ExSyslogger"]
   end

lib/pleroma/config/deprecation_warnings.ex

@@ -3,10 +3,25 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Config.DeprecationWarnings do
+  alias Pleroma.Config
+
   require Logger
+  alias Pleroma.Config
+
+  @type config_namespace() :: [atom()]
+  @type config_map() :: {config_namespace(), config_namespace(), String.t()}
+
+  @mrf_config_map [
+    {[:instance, :rewrite_policy], [:mrf, :policies],
+     "\n* `config :pleroma, :instance, rewrite_policy` is now `config :pleroma, :mrf, policies`"},
+    {[:instance, :mrf_transparency], [:mrf, :transparency],
+     "\n* `config :pleroma, :instance, mrf_transparency` is now `config :pleroma, :mrf, transparency`"},
+    {[:instance, :mrf_transparency_exclusions], [:mrf, :transparency_exclusions],
+     "\n* `config :pleroma, :instance, mrf_transparency_exclusions` is now `config :pleroma, :mrf, transparency_exclusions`"}
+  ]
 
   def check_hellthread_threshold do
-    if Pleroma.Config.get([:mrf_hellthread, :threshold]) do
+    if Config.get([:mrf_hellthread, :threshold]) do
       Logger.warn("""
       !!!DEPRECATION WARNING!!!
       You are using the old configuration mechanism for the hellthread filter. Please check config.md.
@@ -14,7 +29,59 @@ def check_hellthread_threshold do
     end
   end
 
+  def mrf_user_allowlist do
+    config = Config.get(:mrf_user_allowlist)
+
+    if config && Enum.any?(config, fn {k, _} -> is_atom(k) end) do
+      rewritten =
+        Enum.reduce(Config.get(:mrf_user_allowlist), Map.new(), fn {k, v}, acc ->
+          Map.put(acc, to_string(k), v)
+        end)
+
+      Config.put(:mrf_user_allowlist, rewritten)
+
+      Logger.error("""
+      !!!DEPRECATION WARNING!!!
+      As of Pleroma 2.0.7, the `mrf_user_allowlist` setting changed of format.
+      Pleroma 2.1 will remove support for the old format. Please change your configuration to match this:
+
+      config :pleroma, :mrf_user_allowlist, #{inspect(rewritten, pretty: true)}
+      """)
+    end
+  end
+
   def warn do
     check_hellthread_threshold()
+    mrf_user_allowlist()
+    check_old_mrf_config()
+  end
+
+  def check_old_mrf_config do
+    warning_preface = """
+    !!!DEPRECATION WARNING!!!
+    Your config is using old namespaces for MRF configuration. They should work for now, but you are advised to change to new namespaces to prevent possible issues later:
+    """
+
+    move_namespace_and_warn(@mrf_config_map, warning_preface)
+  end
+
+  @spec move_namespace_and_warn([config_map()], String.t()) :: :ok
+  def move_namespace_and_warn(config_map, warning_preface) do
+    warning =
+      Enum.reduce(config_map, "", fn
+        {old, new, err_msg}, acc ->
+          old_config = Config.get(old)
+
+          if old_config do
+            Config.put(new, old_config)
+            acc <> err_msg
+          else
+            acc
+          end
+      end)
+
+    if warning != "" do
+      Logger.warn(warning_preface <> warning)
+    end
   end
 end

lib/pleroma/config/transfer_task.ex

@@ -28,10 +28,6 @@ defmodule Pleroma.Config.TransferTask do
     {:pleroma, Pleroma.Captcha, [:seconds_valid]},
     {:pleroma, Pleroma.Upload, [:proxy_remote]},
     {:pleroma, :instance, [:upload_limit]},
-    {:pleroma, :email_notifications, [:digest]},
-    {:pleroma, :oauth2, [:clean_expired_tokens]},
-    {:pleroma, Pleroma.ActivityExpiration, [:enabled]},
-    {:pleroma, Pleroma.ScheduledActivity, [:enabled]},
     {:pleroma, :gopher, [:enabled]}
   ]
 
@@ -48,7 +44,7 @@ def load_and_update_env(deleted_settings \\ [], restart_pleroma? \\ true) do
 
       {logger, other} =
         (Repo.all(ConfigDB) ++ deleted_settings)
-        |> Enum.map(&transform_and_merge/1)
+        |> Enum.map(&merge_with_default/1)
         |> Enum.split_with(fn {group, _, _, _} -> group in [:logger, :quack] end)
 
       logger
@@ -92,11 +88,7 @@ defp maybe_set_pleroma_last(apps) do
     end
   end
 
-  defp transform_and_merge(%{group: group, key: key, value: value} = setting) do
+  defp merge_with_default(%{group: group, key: key, value: value} = setting) do
-    group = ConfigDB.from_string(group)
-    key = ConfigDB.from_string(key)
-    value = ConfigDB.from_binary(value)
-
     default = Config.Holder.default_config(group, key)
 
     merged =

lib/pleroma/conversation/participation.ex

@@ -162,10 +162,13 @@ def for_user_with_last_activity_id(user, params \\ %{}) do
     for_user(user, params)
     |> Enum.map(fn participation ->
       activity_id =
-        ActivityPub.fetch_latest_activity_id_for_context(participation.conversation.ap_id, %{
+        ActivityPub.fetch_latest_direct_activity_id_for_context(
-          user: user,
+          participation.conversation.ap_id,
-          blocking_user: user
+          %{
-        })
+            user: user,
+            blocking_user: user
+          }
+        )
 
       %{
         participation

lib/pleroma/ecto_type/activity_pub/object_validators/date_time.ex

@@ -1,4 +1,8 @@
-defmodule Pleroma.Web.ActivityPub.ObjectValidators.Types.DateTime do
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.EctoType.ActivityPub.ObjectValidators.DateTime do
   @moduledoc """
   The AP standard defines the date fields in AP as xsd:DateTime. Elixir's
   DateTime can't parse this, but it can parse the related iso8601. This

lib/pleroma/ecto_type/activity_pub/object_validators/object_id.ex

@@ -1,4 +1,8 @@
-defmodule Pleroma.Web.ActivityPub.ObjectValidators.Types.ObjectID do
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.EctoType.ActivityPub.ObjectValidators.ObjectID do
   use Ecto.Type
 
   def type, do: :string

lib/pleroma/ecto_type/activity_pub/object_validators/recipients.ex

@@ -0,0 +1,40 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.EctoType.ActivityPub.ObjectValidators.Recipients do
+  use Ecto.Type
+
+  alias Pleroma.EctoType.ActivityPub.ObjectValidators.ObjectID
+
+  def type, do: {:array, ObjectID}
+
+  def cast(object) when is_binary(object) do
+    cast([object])
+  end
+
+  def cast(data) when is_list(data) do
+    data
+    |> Enum.reduce_while({:ok, []}, fn element, {:ok, list} ->
+      case ObjectID.cast(element) do
+        {:ok, id} ->
+          {:cont, {:ok, [id | list]}}
+
+        _ ->
+          {:halt, :error}
+      end
+    end)
+  end
+
+  def cast(_) do
+    :error
+  end
+
+  def dump(data) do
+    {:ok, data}
+  end
+
+  def load(data) do
+    {:ok, data}
+  end
+end

lib/pleroma/ecto_type/activity_pub/object_validators/safe_text.ex

@@ -0,0 +1,25 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.EctoType.ActivityPub.ObjectValidators.SafeText do
+  use Ecto.Type
+
+  alias Pleroma.HTML
+
+  def type, do: :string
+
+  def cast(str) when is_binary(str) do
+    {:ok, HTML.filter_tags(str)}
+  end
+
+  def cast(_), do: :error
+
+  def dump(data) do
+    {:ok, data}
+  end
+
+  def load(data) do
+    {:ok, data}
+  end
+end

lib/pleroma/ecto_type/activity_pub/object_validators/uri.ex

@@ -1,4 +1,8 @@
-defmodule Pleroma.Web.ActivityPub.ObjectValidators.Types.Uri do
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.EctoType.ActivityPub.ObjectValidators.Uri do
   use Ecto.Type
 
   def type, do: :string

lib/pleroma/ecto_type/config/atom.ex

@@ -0,0 +1,26 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.EctoType.Config.Atom do
+  use Ecto.Type
+
+  def type, do: :atom
+
+  def cast(key) when is_atom(key) do
+    {:ok, key}
+  end
+
+  def cast(key) when is_binary(key) do
+    {:ok, Pleroma.ConfigDB.string_to_elixir_types(key)}
+  end
+
+  def cast(_), do: :error
+
+  def load(key) do
+    {:ok, Pleroma.ConfigDB.string_to_elixir_types(key)}
+  end
+
+  def dump(key) when is_atom(key), do: {:ok, inspect(key)}
+  def dump(_), do: :error
+end

lib/pleroma/ecto_type/config/binary_value.ex

@@ -0,0 +1,27 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.EctoType.Config.BinaryValue do
+  use Ecto.Type
+
+  def type, do: :term
+
+  def cast(value) when is_binary(value) do
+    if String.valid?(value) do
+      {:ok, value}
+    else
+      {:ok, :erlang.binary_to_term(value)}
+    end
+  end
+
+  def cast(value), do: {:ok, value}
+
+  def load(value) when is_binary(value) do
+    {:ok, :erlang.binary_to_term(value)}
+  end
+
+  def dump(value) do
+    {:ok, :erlang.term_to_binary(value)}
+  end
+end

lib/pleroma/emoji/pack.ex

@@ -1,6 +1,7 @@
 defmodule Pleroma.Emoji.Pack do
-  @derive {Jason.Encoder, only: [:files, :pack]}
+  @derive {Jason.Encoder, only: [:files, :pack, :files_count]}
   defstruct files: %{},
+            files_count: 0,
             pack_file: nil,
             path: nil,
             pack: %{},
@@ -8,6 +9,7 @@ defmodule Pleroma.Emoji.Pack do
 
   @type t() :: %__MODULE__{
           files: %{String.t() => Path.t()},
+          files_count: non_neg_integer(),
           pack_file: Path.t(),
           path: Path.t(),
           pack: map(),
@@ -16,7 +18,7 @@ defmodule Pleroma.Emoji.Pack do
 
   alias Pleroma.Emoji
 
-  @spec create(String.t()) :: :ok | {:error, File.posix()} | {:error, :empty_values}
+  @spec create(String.t()) :: {:ok, t()} | {:error, File.posix()} | {:error, :empty_values}
   def create(name) do
     with :ok <- validate_not_empty([name]),
          dir <- Path.join(emoji_path(), name),
@@ -26,10 +28,27 @@ def create(name) do
     end
   end
 
-  @spec show(String.t()) :: {:ok, t()} | {:error, atom()}
+  defp paginate(entities, 1, page_size), do: Enum.take(entities, page_size)
-  def show(name) do
+
+  defp paginate(entities, page, page_size) do
+    entities
+    |> Enum.chunk_every(page_size)
+    |> Enum.at(page - 1)
+  end
+
+  @spec show(keyword()) :: {:ok, t()} | {:error, atom()}
+  def show(opts) do
+    name = opts[:name]
+
     with :ok <- validate_not_empty([name]),
          {:ok, pack} <- load_pack(name) do
+      shortcodes =
+        pack.files
+        |> Map.keys()
+        |> paginate(opts[:page], opts[:page_size])
+
+      pack = Map.put(pack, :files, Map.take(pack.files, shortcodes))
+
       {:ok, validate_pack(pack)}
     end
   end
@@ -120,10 +139,10 @@ def list_remote(url) do
     end
   end
 
-  @spec list_local() :: {:ok, map()}
+  @spec list_local(keyword()) :: {:ok, map(), non_neg_integer()}
-  def list_local do
+  def list_local(opts) do
     with {:ok, results} <- list_packs_dir() do
-      packs =
+      all_packs =
         results
         |> Enum.map(fn name ->
           case load_pack(name) do
@@ -132,9 +151,13 @@ def list_local do
           end
         end)
         |> Enum.reject(&is_nil/1)
+
+      packs =
+        all_packs
+        |> paginate(opts[:page], opts[:page_size])
         |> Map.new(fn pack -> {pack.name, validate_pack(pack)} end)
 
-      {:ok, packs}
+      {:ok, packs, length(all_packs)}
     end
   end
 
@@ -146,7 +169,7 @@ def get_archive(name) do
     end
   end
 
-  @spec download(String.t(), String.t(), String.t()) :: :ok | {:error, atom()}
+  @spec download(String.t(), String.t(), String.t()) :: {:ok, t()} | {:error, atom()}
   def download(name, url, as) do
     uri = url |> String.trim() |> URI.parse()
 
@@ -197,7 +220,12 @@ def load_pack(name) do
         |> Map.put(:path, Path.dirname(pack_file))
         |> Map.put(:name, name)
 
-      {:ok, pack}
+      files_count =
+        pack.files
+        |> Map.keys()
+        |> length()
+
+      {:ok, Map.put(pack, :files_count, files_count)}
     else
       {:error, :not_found}
     end
@@ -296,7 +324,9 @@ defp downloadable?(pack) do
     # Otherwise, they'd have to download it from external-src
     pack.pack["share-files"] &&
       Enum.all?(pack.files, fn {_, file} ->
-        File.exists?(Path.join(pack.path, file))
+        pack.path
+        |> Path.join(file)
+        |> File.exists?()
       end)
   end
 
@@ -440,7 +470,7 @@ defp list_packs_dir do
     # with the API so it should be sufficient
     with {:create_dir, :ok} <- {:create_dir, File.mkdir_p(emoji_path)},
          {:ls, {:ok, results}} <- {:ls, File.ls(emoji_path)} do
-      {:ok, results}
+      {:ok, Enum.sort(results)}
     else
       {:create_dir, {:error, e}} -> {:error, :create_dir, e}
       {:ls, {:error, e}} -> {:error, :ls, e}

lib/pleroma/migration_helper/notification_backfill.ex

@@ -0,0 +1,85 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.MigrationHelper.NotificationBackfill do
+  alias Pleroma.Notification
+  alias Pleroma.Object
+  alias Pleroma.Repo
+  alias Pleroma.User
+
+  import Ecto.Query
+
+  def fill_in_notification_types do
+    query =
+      from(n in Pleroma.Notification,
+        where: is_nil(n.type),
+        preload: :activity
+      )
+
+    query
+    |> Repo.chunk_stream(100)
+    |> Enum.each(fn notification ->
+      type =
+        notification.activity
+        |> type_from_activity()
+
+      notification
+      |> Notification.changeset(%{type: type})
+      |> Repo.update()
+    end)
+  end
+
+  # This is copied over from Notifications to keep this stable.
+  defp type_from_activity(%{data: %{"type" => type}} = activity) do
+    case type do
+      "Follow" ->
+        accepted_function = fn activity ->
+          with %User{} = follower <- User.get_by_ap_id(activity.data["actor"]),
+               %User{} = followed <- User.get_by_ap_id(activity.data["object"]) do
+            Pleroma.FollowingRelationship.following?(follower, followed)
+          end
+        end
+
+        if accepted_function.(activity) do
+          "follow"
+        else
+          "follow_request"
+        end
+
+      "Announce" ->
+        "reblog"
+
+      "Like" ->
+        "favourite"
+
+      "Move" ->
+        "move"
+
+      "EmojiReact" ->
+        "pleroma:emoji_reaction"
+
+      # Compatibility with old reactions
+      "EmojiReaction" ->
+        "pleroma:emoji_reaction"
+
+      "Create" ->
+        activity
+        |> type_from_activity_object()
+
+      t ->
+        raise "No notification type for activity type #{t}"
+    end
+  end
+
+  defp type_from_activity_object(%{data: %{"type" => "Create", "object" => %{}}}), do: "mention"
+
+  defp type_from_activity_object(%{data: %{"type" => "Create"}} = activity) do
+    object = Object.get_by_ap_id(activity.data["object"])
+
+    case object && object.data["type"] do
+      "ChatMessage" -> "pleroma:chat_mention"
+      _ -> "mention"
+    end
+  end
+end

lib/pleroma/notification.ex

@@ -30,12 +30,29 @@ defmodule Pleroma.Notification do
 
   schema "notifications" do
     field(:seen, :boolean, default: false)
+    # This is an enum type in the database. If you add a new notification type,
+    # remember to add a migration to add it to the `notifications_type` enum
+    # as well.
+    field(:type, :string)
     belongs_to(:user, User, type: FlakeId.Ecto.CompatType)
     belongs_to(:activity, Activity, type: FlakeId.Ecto.CompatType)
 
     timestamps()
   end
 
+  def update_notification_type(user, activity) do
+    with %__MODULE__{} = notification <-
+           Repo.get_by(__MODULE__, user_id: user.id, activity_id: activity.id) do
+      type =
+        activity
+        |> type_from_activity()
+
+      notification
+      |> changeset(%{type: type})
+      |> Repo.update()
+    end
+  end
+
   @spec unread_notifications_count(User.t()) :: integer()
   def unread_notifications_count(%User{id: user_id}) do
     from(q in __MODULE__,
@@ -44,9 +61,21 @@ def unread_notifications_count(%User{id: user_id}) do
     |> Repo.aggregate(:count, :id)
   end
 
+  @notification_types ~w{
+    favourite
+    follow
+    follow_request
+    mention
+    move
+    pleroma:chat_mention
+    pleroma:emoji_reaction
+    reblog
+  }
+
   def changeset(%Notification{} = notification, attrs) do
     notification
-    |> cast(attrs, [:seen])
+    |> cast(attrs, [:seen, :type])
+    |> validate_inclusion(:type, @notification_types)
   end
 
   @spec last_read_query(User.t()) :: Ecto.Queryable.t()
@@ -137,8 +166,16 @@ defp exclude_visibility(query, %{exclude_visibilities: visibility})
       query
       |> join(:left, [n, a], mutated_activity in Pleroma.Activity,
         on:
-          fragment("?->>'context'", a.data) ==
+          fragment(
-            fragment("?->>'context'", mutated_activity.data) and
+            "COALESCE((?->'object')->>'id', ?->>'object')",
+            a.data,
+            a.data
+          ) ==
+            fragment(
+              "COALESCE((?->'object')->>'id', ?->>'object')",
+              mutated_activity.data,
+              mutated_activity.data
+            ) and
             fragment("(?->>'type' = 'Like' or ?->>'type' = 'Announce')", a.data, a.data) and
             fragment("?->>'type'", mutated_activity.data) == "Create",
         as: :mutated_activity
@@ -300,42 +337,95 @@ def dismiss(%{id: user_id} = _user, id) do
     end
   end
 
-  def create_notifications(%Activity{data: %{"to" => _, "type" => "Create"}} = activity) do
+  def create_notifications(activity, options \\ [])
-    object = Object.normalize(activity)
+
+  def create_notifications(%Activity{data: %{"to" => _, "type" => "Create"}} = activity, options) do
+    object = Object.normalize(activity, false)
 
     if object && object.data["type"] == "Answer" do
       {:ok, []}
     else
-      do_create_notifications(activity)
+      do_create_notifications(activity, options)
     end
   end
 
-  def create_notifications(%Activity{data: %{"type" => type}} = activity)
+  def create_notifications(%Activity{data: %{"type" => type}} = activity, options)
       when type in ["Follow", "Like", "Announce", "Move", "EmojiReact"] do
-    do_create_notifications(activity)
+    do_create_notifications(activity, options)
   end
 
-  def create_notifications(_), do: {:ok, []}
+  def create_notifications(_, _), do: {:ok, []}
+
+  defp do_create_notifications(%Activity{} = activity, options) do
+    do_send = Keyword.get(options, :do_send, true)
 
-  defp do_create_notifications(%Activity{} = activity) do
     {enabled_receivers, disabled_receivers} = get_notified_from_activity(activity)
     potential_receivers = enabled_receivers ++ disabled_receivers
 
     notifications =
       Enum.map(potential_receivers, fn user ->
-        do_send = user in enabled_receivers
+        do_send = do_send && user in enabled_receivers
         create_notification(activity, user, do_send)
       end)
 
     {:ok, notifications}
   end
 
+  defp type_from_activity(%{data: %{"type" => type}} = activity) do
+    case type do
+      "Follow" ->
+        if Activity.follow_accepted?(activity) do
+          "follow"
+        else
+          "follow_request"
+        end
+
+      "Announce" ->
+        "reblog"
+
+      "Like" ->
+        "favourite"
+
+      "Move" ->
+        "move"
+
+      "EmojiReact" ->
+        "pleroma:emoji_reaction"
+
+      # Compatibility with old reactions
+      "EmojiReaction" ->
+        "pleroma:emoji_reaction"
+
+      "Create" ->
+        activity
+        |> type_from_activity_object()
+
+      t ->
+        raise "No notification type for activity type #{t}"
+    end
+  end
+
+  defp type_from_activity_object(%{data: %{"type" => "Create", "object" => %{}}}), do: "mention"
+
+  defp type_from_activity_object(%{data: %{"type" => "Create"}} = activity) do
+    object = Object.get_by_ap_id(activity.data["object"])
+
+    case object && object.data["type"] do
+      "ChatMessage" -> "pleroma:chat_mention"
+      _ -> "mention"
+    end
+  end
+
   # TODO move to sql, too.
   def create_notification(%Activity{} = activity, %User{} = user, do_send \\ true) do
     unless skip?(activity, user) do
       {:ok, %{notification: notification}} =
         Multi.new()
-        |> Multi.insert(:notification, %Notification{user_id: user.id, activity: activity})
+        |> Multi.insert(:notification, %Notification{
+          user_id: user.id,
+          activity: activity,
+          type: type_from_activity(activity)
+        })
         |> Marker.multi_set_last_read_id(user, "notifications")
         |> Repo.transaction()
 
@@ -459,6 +549,7 @@ def exclude_thread_muter_ap_ids(ap_ids, %Activity{} = activity) do
   def skip?(%Activity{} = activity, %User{} = user) do
     [
       :self,
+      :invisible,
       :followers,
       :follows,
       :non_followers,
@@ -475,6 +566,12 @@ def skip?(:self, %Activity{} = activity, %User{} = user) do
     activity.data["actor"] == user.ap_id
   end
 
+  def skip?(:invisible, %Activity{} = activity, _) do
+    actor = activity.data["actor"]
+    user = User.get_cached_by_ap_id(actor)
+    User.invisible?(user)
+  end
+
   def skip?(
         :followers,
         %Activity{} = activity,
@@ -527,4 +624,12 @@ def skip?(:recently_followed, %Activity{data: %{"type" => "Follow"}} = activity,
   end
 
   def skip?(_, _, _), do: false
+
+  def for_user_and_activity(user, activity) do
+    from(n in __MODULE__,
+      where: n.user_id == ^user.id,
+      where: n.activity_id == ^activity.id
+    )
+    |> Repo.one()
+  end
 end

lib/pleroma/pagination.ex

@@ -64,6 +64,12 @@ def fetch_paginated(query, params, :offset, table_binding) do
   @spec paginate(Ecto.Query.t(), map(), type(), atom() | nil) :: [Ecto.Schema.t()]
   def paginate(query, options, method \\ :keyset, table_binding \\ nil)
 
+  def paginate(list, options, _method, _table_binding) when is_list(list) do
+    offset = options[:offset] || 0
+    limit = options[:limit] || 0
+    Enum.slice(list, offset, limit)
+  end
+
   def paginate(query, options, :keyset, table_binding) do
     query
     |> restrict(:min_id, options, table_binding)

lib/pleroma/plugs/http_security_plug.ex

@@ -113,6 +113,10 @@ defp get_proxy_and_attachment_sources do
         add_source(acc, host)
       end)
 
+    media_proxy_base_url =
+      if Config.get([:media_proxy, :base_url]),
+        do: URI.parse(Config.get([:media_proxy, :base_url])).host
+
     upload_base_url =
       if Config.get([Pleroma.Upload, :base_url]),
         do: URI.parse(Config.get([Pleroma.Upload, :base_url])).host
@@ -122,6 +126,7 @@ defp get_proxy_and_attachment_sources do
         do: URI.parse(Config.get([Pleroma.Uploaders.S3, :public_endpoint])).host
 
     []
+    |> add_source(media_proxy_base_url)
     |> add_source(upload_base_url)
     |> add_source(s3_endpoint)
     |> add_source(media_proxy_whitelist)

lib/pleroma/plugs/uploaded_media.ex

@@ -10,6 +10,8 @@ defmodule Pleroma.Plugs.UploadedMedia do
   import Pleroma.Web.Gettext
   require Logger
 
+  alias Pleroma.Web.MediaProxy
+
   @behaviour Plug
   # no slashes
   @path "media"
@@ -35,8 +37,7 @@ def call(%{request_path: <<"/", @path, "/", file::binary>>} = conn, opts) do
         %{query_params: %{"name" => name}} = conn ->
           name = String.replace(name, "\"", "\\\"")
 
-          conn
+          put_resp_header(conn, "content-disposition", "filename=\"#{name}\"")
-          |> put_resp_header("content-disposition", "filename=\"#{name}\"")
 
         conn ->
           conn
@@ -47,7 +48,8 @@ def call(%{request_path: <<"/", @path, "/", file::binary>>} = conn, opts) do
 
     with uploader <- Keyword.fetch!(config, :uploader),
          proxy_remote = Keyword.get(config, :proxy_remote, false),
-         {:ok, get_method} <- uploader.get_file(file) do
+         {:ok, get_method} <- uploader.get_file(file),
+         false <- media_is_banned(conn, get_method) do
       get_media(conn, get_method, proxy_remote, opts)
     else
       _ ->
@@ -59,6 +61,14 @@ def call(%{request_path: <<"/", @path, "/", file::binary>>} = conn, opts) do
 
   def call(conn, _opts), do: conn
 
+  defp media_is_banned(%{request_path: path} = _conn, {:static_dir, _}) do
+    MediaProxy.in_banned_urls(Pleroma.Web.base_url() <> path)
+  end
+
+  defp media_is_banned(_, {:url, url}), do: MediaProxy.in_banned_urls(url)
+
+  defp media_is_banned(_, _), do: false
+
   defp get_media(conn, {:static_dir, directory}, _, opts) do
     static_opts =
       Map.get(opts, :static_plug_opts)

lib/pleroma/repo.ex

@@ -8,11 +8,10 @@ defmodule Pleroma.Repo do
     adapter: Ecto.Adapters.Postgres,
     migration_timestamps: [type: :naive_datetime_usec]
 
+  import Ecto.Query
   require Logger
 
-  defmodule Instrumenter do
+  defmodule Instrumenter, do: use(Prometheus.EctoInstrumenter)
-    use Prometheus.EctoInstrumenter
-  end
 
   @doc """
   Dynamically loads the repository url from the
@@ -50,36 +49,30 @@ def get_assoc(resource, association) do
     end
   end
 
-  def check_migrations_applied!() do
+  def chunk_stream(query, chunk_size) do
-    unless Pleroma.Config.get(
+    # We don't actually need start and end funcitons of resource streaming,
-             [:i_am_aware_this_may_cause_data_loss, :disable_migration_check],
+    # but it seems to be the only way to not fetch records one-by-one and
-             false
+    # have individual records be the elements of the stream, instead of
-           ) do
+    # lists of records
-      Ecto.Migrator.with_repo(__MODULE__, fn repo ->
+    Stream.resource(
-        down_migrations =
+      fn -> 0 end,
-          Ecto.Migrator.migrations(repo)
+      fn
-          |> Enum.reject(fn
+        last_id ->
-            {:up, _, _} -> true
+          query
-            {:down, _, _} -> false
+          |> order_by(asc: :id)
-          end)
+          |> where([r], r.id > ^last_id)
+          |> limit(^chunk_size)
+          |> all()
+          |> case do
+            [] ->
+              {:halt, last_id}
 
-        if length(down_migrations) > 0 do
+            records ->
-          down_migrations_text =
+              last_id = List.last(records).id
-            Enum.map(down_migrations, fn {:down, id, name} -> "- #{name} (#{id})\n" end)
+              {records, last_id}
-
+          end
-          Logger.error(
+      end,
-            "The following migrations were not applied:\n#{down_migrations_text}If you want to start Pleroma anyway, set\nconfig :pleroma, :i_am_aware_this_may_cause_data_loss, disable_migration_check: true"
+      fn _ -> :ok end
-          )
+    )
-
-          raise Pleroma.Repo.UnappliedMigrationsError
-        end
-      end)
-    else
-      :ok
-    end
   end
 end
-
-defmodule Pleroma.Repo.UnappliedMigrationsError do
-  defexception message: "Unapplied Migrations detected"
-end

lib/pleroma/signature.ex

@@ -5,10 +5,10 @@
 defmodule Pleroma.Signature do
   @behaviour HTTPSignatures.Adapter
 
+  alias Pleroma.EctoType.ActivityPub.ObjectValidators
   alias Pleroma.Keys
   alias Pleroma.User
   alias Pleroma.Web.ActivityPub.ActivityPub
-  alias Pleroma.Web.ActivityPub.ObjectValidators.Types
 
   def key_id_to_actor_id(key_id) do
     uri =
@@ -24,7 +24,7 @@ def key_id_to_actor_id(key_id) do
 
     maybe_ap_id = URI.to_string(uri)
 
-    case Types.ObjectID.cast(maybe_ap_id) do
+    case ObjectValidators.ObjectID.cast(maybe_ap_id) do
       {:ok, ap_id} ->
         {:ok, ap_id}
 

lib/pleroma/upload.ex

@@ -67,6 +67,7 @@ def store(upload, opts \\ []) do
       {:ok,
        %{
          "type" => opts.activity_type,
+         "mediaType" => upload.content_type,
          "url" => [
            %{
              "type" => "Link",

lib/pleroma/user.ex

@@ -14,6 +14,7 @@ defmodule Pleroma.User do
   alias Pleroma.Config
   alias Pleroma.Conversation.Participation
   alias Pleroma.Delivery
+  alias Pleroma.EctoType.ActivityPub.ObjectValidators
   alias Pleroma.Emoji
   alias Pleroma.FollowingRelationship
   alias Pleroma.Formatter
@@ -30,7 +31,6 @@ defmodule Pleroma.User do
   alias Pleroma.Web
   alias Pleroma.Web.ActivityPub.ActivityPub
   alias Pleroma.Web.ActivityPub.Builder
-  alias Pleroma.Web.ActivityPub.ObjectValidators.Types
   alias Pleroma.Web.ActivityPub.Pipeline
   alias Pleroma.Web.ActivityPub.Utils
   alias Pleroma.Web.CommonAPI
@@ -79,6 +79,7 @@ defmodule Pleroma.User do
 
   schema "users" do
     field(:bio, :string)
+    field(:raw_bio, :string)
     field(:email, :string)
     field(:name, :string)
     field(:nickname, :string)
@@ -115,7 +116,7 @@ defmodule Pleroma.User do
     field(:is_admin, :boolean, default: false)
     field(:show_role, :boolean, default: true)
     field(:settings, :map, default: nil)
-    field(:uri, Types.Uri, default: nil)
+    field(:uri, ObjectValidators.Uri, default: nil)
     field(:hide_followers_count, :boolean, default: false)
     field(:hide_follows_count, :boolean, default: false)
     field(:hide_followers, :boolean, default: false)
@@ -262,37 +263,60 @@ def account_status(%User{deactivated: true}), do: :deactivated
   def account_status(%User{password_reset_pending: true}), do: :password_reset_pending
 
   def account_status(%User{confirmation_pending: true}) do
-    case Config.get([:instance, :account_activation_required]) do
+    if Config.get([:instance, :account_activation_required]) do
-      true -> :confirmation_pending
+      :confirmation_pending
-      _ -> :active
+    else
+      :active
     end
   end
 
   def account_status(%User{}), do: :active
 
-  @spec visible_for?(User.t(), User.t() | nil) :: boolean()
+  @spec visible_for(User.t(), User.t() | nil) ::
-  def visible_for?(user, for_user \\ nil)
+          :visible
+          | :invisible
+          | :restricted_unauthenticated
+          | :deactivated
+          | :confirmation_pending
+  def visible_for(user, for_user \\ nil)
 
-  def visible_for?(%User{invisible: true}, _), do: false
+  def visible_for(%User{invisible: true}, _), do: :invisible
 
-  def visible_for?(%User{id: user_id}, %User{id: user_id}), do: true
+  def visible_for(%User{id: user_id}, %User{id: user_id}), do: :visible
 
-  def visible_for?(%User{local: local} = user, nil) do
+  def visible_for(%User{} = user, nil) do
-    cfg_key =
+    if restrict_unauthenticated?(user) do
-      if local,
+      :restrict_unauthenticated
-        do: :local,
+    else
-        else: :remote
+      visible_account_status(user)
-
+    end
-    if Config.get([:restrict_unauthenticated, :profiles, cfg_key]),
-      do: false,
-      else: account_status(user) == :active
   end
 
-  def visible_for?(%User{} = user, for_user) do
+  def visible_for(%User{} = user, for_user) do
-    account_status(user) == :active || superuser?(for_user)
+    if superuser?(for_user) do
+      :visible
+    else
+      visible_account_status(user)
+    end
   end
 
-  def visible_for?(_, _), do: false
+  def visible_for(_, _), do: :invisible
+
+  defp restrict_unauthenticated?(%User{local: local}) do
+    config_key = if local, do: :local, else: :remote
+
+    Config.get([:restrict_unauthenticated, :profiles, config_key], false)
+  end
+
+  defp visible_account_status(user) do
+    status = account_status(user)
+
+    if status in [:active, :password_reset_pending] do
+      :visible
+    else
+      status
+    end
+  end
 
   @spec superuser?(User.t()) :: boolean()
   def superuser?(%User{local: true, is_admin: true}), do: true
@@ -432,6 +456,7 @@ def update_changeset(struct, params \\ %{}) do
       params,
       [
         :bio,
+        :raw_bio,
         :name,
         :emoji,
         :avatar,
@@ -463,6 +488,7 @@ def update_changeset(struct, params \\ %{}) do
     |> validate_format(:nickname, local_nickname_regex())
     |> validate_length(:bio, max: bio_limit)
     |> validate_length(:name, min: 1, max: name_limit)
+    |> validate_inclusion(:actor_type, ["Person", "Service"])
     |> put_fields()
     |> put_emoji()
     |> put_change_if_present(:bio, &{:ok, parse_bio(&1, struct)})
@@ -607,7 +633,16 @@ def register_changeset(struct, params \\ %{}, opts \\ []) do
 
     struct
     |> confirmation_changeset(need_confirmation: need_confirmation?)
-    |> cast(params, [:bio, :email, :name, :nickname, :password, :password_confirmation, :emoji])
+    |> cast(params, [
+      :bio,
+      :raw_bio,
+      :email,
+      :name,
+      :nickname,
+      :password,
+      :password_confirmation,
+      :emoji
+    ])
     |> validate_required([:name, :nickname, :password, :password_confirmation])
     |> validate_confirmation(:password)
     |> unique_constraint(:email)
@@ -747,7 +782,6 @@ def follow(%User{} = follower, %User{} = followed, state \\ :follow_accept) do
 
         follower
         |> update_following_count()
-        |> set_cache()
     end
   end
 
@@ -776,7 +810,6 @@ defp do_unfollow(%User{} = follower, %User{} = followed) do
         {:ok, follower} =
           follower
           |> update_following_count()
-          |> set_cache()
 
         {:ok, follower, followed}
 
@@ -1128,35 +1161,25 @@ defp follow_information_changeset(user, params) do
     ])
   end
 
+  @spec update_follower_count(User.t()) :: {:ok, User.t()}
   def update_follower_count(%User{} = user) do
     if user.local or !Pleroma.Config.get([:instance, :external_user_synchronization]) do
-      follower_count_query =
+      follower_count = FollowingRelationship.follower_count(user)
-        User.Query.build(%{followers: user, deactivated: false})
-        |> select([u], %{count: count(u.id)})
 
-      User
+      user
-      |> where(id: ^user.id)
+      |> follow_information_changeset(%{follower_count: follower_count})
-      |> join(:inner, [u], s in subquery(follower_count_query))
+      |> update_and_set_cache
-      |> update([u, s],
-        set: [follower_count: s.count]
-      )
-      |> select([u], u)
-      |> Repo.update_all([])
-      |> case do
-        {1, [user]} -> set_cache(user)
-        _ -> {:error, user}
-      end
     else
       {:ok, maybe_fetch_follow_information(user)}
     end
   end
 
-  @spec update_following_count(User.t()) :: User.t()
+  @spec update_following_count(User.t()) :: {:ok, User.t()}
   def update_following_count(%User{local: false} = user) do
     if Pleroma.Config.get([:instance, :external_user_synchronization]) do
-      maybe_fetch_follow_information(user)
+      {:ok, maybe_fetch_follow_information(user)}
     else
-      user
+      {:ok, user}
     end
   end
 
@@ -1165,7 +1188,7 @@ def update_following_count(%User{local: true} = user) do
 
     user
     |> follow_information_changeset(%{following_count: following_count})
-    |> Repo.update!()
+    |> update_and_set_cache()
   end
 
   def set_unread_conversation_count(%User{local: true} = user) do
@@ -1488,6 +1511,7 @@ def perform(:delete, %User{} = user) do
     end)
 
     delete_user_activities(user)
+    delete_notifications_from_user_activities(user)
 
     delete_outgoing_pending_follow_requests(user)
 
@@ -1576,6 +1600,13 @@ def follow_import(%User{} = follower, followed_identifiers)
     })
   end
 
+  def delete_notifications_from_user_activities(%User{ap_id: ap_id}) do
+    Notification
+    |> join(:inner, [n], activity in assoc(n, :activity))
+    |> where([n, a], fragment("? = ?", a.actor, ^ap_id))
+    |> Repo.delete_all()
+  end
+
   def delete_user_activities(%User{ap_id: ap_id} = user) do
     ap_id
     |> Activity.Queries.by_actor()

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -5,6 +5,7 @@
 defmodule Pleroma.Web.ActivityPub.ActivityPub do
   alias Pleroma.Activity
   alias Pleroma.Activity.Ir.Topics
+  alias Pleroma.ActivityExpiration
   alias Pleroma.Config
   alias Pleroma.Constants
   alias Pleroma.Conversation
@@ -31,25 +32,6 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
   require Logger
   require Pleroma.Constants
 
-  # For Announce activities, we filter the recipients based on following status for any actors
-  # that match actual users.  See issue #164 for more information about why this is necessary.
-  defp get_recipients(%{"type" => "Announce"} = data) do
-    to = Map.get(data, "to", [])
-    cc = Map.get(data, "cc", [])
-    bcc = Map.get(data, "bcc", [])
-    actor = User.get_cached_by_ap_id(data["actor"])
-
-    recipients =
-      Enum.filter(Enum.concat([to, cc, bcc]), fn recipient ->
-        case User.get_cached_by_ap_id(recipient) do
-          nil -> true
-          user -> User.following?(user, actor)
-        end
-      end)
-
-    {recipients, to, cc}
-  end
-
   defp get_recipients(%{"type" => "Create"} = data) do
     to = Map.get(data, "to", [])
     cc = Map.get(data, "cc", [])
@@ -112,7 +94,14 @@ defp increase_poll_votes_if_vote(%{
 
   defp increase_poll_votes_if_vote(_create_data), do: :noop
 
+  @object_types ["ChatMessage"]
   @spec persist(map(), keyword()) :: {:ok, Activity.t() | Object.t()}
+  def persist(%{"type" => type} = object, meta) when type in @object_types do
+    with {:ok, object} <- Object.create(object) do
+      {:ok, object, meta}
+    end
+  end
+
   def persist(object, meta) do
     with local <- Keyword.fetch!(meta, :local),
          {recipients, _, _} <- get_recipients(object),
@@ -139,12 +128,14 @@ def insert(map, local \\ true, fake \\ false, bypass_actor_check \\ false) when
          {:containment, :ok} <- {:containment, Containment.contain_child(map)},
          {:ok, map, object} <- insert_full_object(map) do
       {:ok, activity} =
-        Repo.insert(%Activity{
+        %Activity{
           data: map,
           local: local,
           actor: map["actor"],
           recipients: recipients
-        })
+        }
+        |> Repo.insert()
+        |> maybe_create_activity_expiration()
 
       # Splice in the child object if we have one.
       activity = Maps.put_if_present(activity, :object, object)
@@ -182,6 +173,14 @@ def notify_and_stream(activity) do
     stream_out_participations(participations)
   end
 
+  defp maybe_create_activity_expiration({:ok, %{data: %{"expires_at" => expires_at}} = activity}) do
+    with {:ok, _} <- ActivityExpiration.create(activity, expires_at) do
+      {:ok, activity}
+    end
+  end
+
+  defp maybe_create_activity_expiration(result), do: result
+
   defp create_or_bump_conversation(activity, actor) do
     with {:ok, conversation} <- Conversation.create_or_bump_for(activity),
          %User{} = user <- User.get_cached_by_ap_id(actor) do
@@ -211,7 +210,7 @@ def stream_out_participations(%Object{data: %{"context" => context}}, user) do
       conversation = Repo.preload(conversation, :participations)
 
       last_activity_id =
-        fetch_latest_activity_id_for_context(conversation.ap_id, %{
+        fetch_latest_direct_activity_id_for_context(conversation.ap_id, %{
           user: user,
           blocking_user: user
         })
@@ -344,20 +343,21 @@ def update(%{to: to, cc: cc, actor: actor, object: object} = params) do
     end
   end
 
-  @spec follow(User.t(), User.t(), String.t() | nil, boolean()) ::
+  @spec follow(User.t(), User.t(), String.t() | nil, boolean(), keyword()) ::
           {:ok, Activity.t()} | {:error, any()}
-  def follow(follower, followed, activity_id \\ nil, local \\ true) do
+  def follow(follower, followed, activity_id \\ nil, local \\ true, opts \\ []) do
     with {:ok, result} <-
-           Repo.transaction(fn -> do_follow(follower, followed, activity_id, local) end) do
+           Repo.transaction(fn -> do_follow(follower, followed, activity_id, local, opts) end) do
       result
     end
   end
 
-  defp do_follow(follower, followed, activity_id, local) do
+  defp do_follow(follower, followed, activity_id, local, opts) do
+    skip_notify_and_stream = Keyword.get(opts, :skip_notify_and_stream, false)
     data = make_follow_data(follower, followed, activity_id)
 
     with {:ok, activity} <- insert(data, local),
-         _ <- notify_and_stream(activity),
+         _ <- skip_notify_and_stream || notify_and_stream(activity),
          :ok <- maybe_federate(activity) do
       {:ok, activity}
     else
@@ -517,11 +517,12 @@ def fetch_activities_for_context(context, opts \\ %{}) do
     |> Repo.all()
   end
 
-  @spec fetch_latest_activity_id_for_context(String.t(), keyword() | map()) ::
+  @spec fetch_latest_direct_activity_id_for_context(String.t(), keyword() | map()) ::
           FlakeId.Ecto.CompatType.t() | nil
-  def fetch_latest_activity_id_for_context(context, opts \\ %{}) do
+  def fetch_latest_direct_activity_id_for_context(context, opts \\ %{}) do
     context
     |> fetch_activities_for_context_query(Map.merge(%{skip_preload: true}, opts))
+    |> restrict_visibility(%{visibility: "direct"})
     |> limit(1)
     |> select([a], a.id)
     |> Repo.one()
@@ -702,6 +703,26 @@ defp user_activities_recipients(%{reading_user: reading_user}) do
     end
   end
 
+  defp restrict_announce_object_actor(_query, %{announce_filtering_user: _, skip_preload: true}) do
+    raise "Can't use the child object without preloading!"
+  end
+
+  defp restrict_announce_object_actor(query, %{announce_filtering_user: %{ap_id: actor}}) do
+    from(
+      [activity, object] in query,
+      where:
+        fragment(
+          "?->>'type' != ? or ?->>'actor' != ?",
+          activity.data,
+          "Announce",
+          object.data,
+          ^actor
+        )
+    )
+  end
+
+  defp restrict_announce_object_actor(query, _), do: query
+
   defp restrict_since(query, %{since_id: ""}), do: query
 
   defp restrict_since(query, %{since_id: since_id}) do
@@ -813,7 +834,8 @@ defp restrict_media(_query, %{only_media: _val, skip_preload: true}) do
 
   defp restrict_media(query, %{only_media: true}) do
     from(
-      [_activity, object] in query,
+      [activity, object] in query,
+      where: fragment("(?)->>'type' = ?", activity.data, "Create"),
       where: fragment("not (?)->'attachment' = (?)", object.data, ^[])
     )
   end
@@ -1000,6 +1022,18 @@ defp exclude_poll_votes(query, _) do
     end
   end
 
+  defp exclude_chat_messages(query, %{include_chat_messages: true}), do: query
+
+  defp exclude_chat_messages(query, _) do
+    if has_named_binding?(query, :object) do
+      from([activity, object: o] in query,
+        where: fragment("not(?->>'type' = ?)", o.data, "ChatMessage")
+      )
+    else
+      query
+    end
+  end
+
   defp exclude_invisible_actors(query, %{invisible_actors: true}), do: query
 
   defp exclude_invisible_actors(query, _opts) do
@@ -1113,8 +1147,10 @@ def fetch_activities_query(recipients, opts \\ %{}) do
     |> restrict_pinned(opts)
     |> restrict_muted_reblogs(restrict_muted_reblogs_opts)
     |> restrict_instance(opts)
+    |> restrict_announce_object_actor(opts)
     |> Activity.restrict_deactivated_users()
     |> exclude_poll_votes(opts)
+    |> exclude_chat_messages(opts)
     |> exclude_invisible_actors(opts)
     |> exclude_visibility(opts)
   end
@@ -1138,12 +1174,11 @@ def fetch_favourites(user, params \\ %{}, pagination \\ :keyset) do
     |> Activity.Queries.by_type("Like")
     |> Activity.with_joined_object()
     |> Object.with_joined_activity()
-    |> select([_like, object, activity], %{activity | object: object})
+    |> select([like, object, activity], %{activity | object: object, pagination_id: like.id})
     |> order_by([like, _, _], desc_nulls_last: like.id)
     |> Pagination.fetch_paginated(
       Map.merge(params, %{skip_order: true}),
-      pagination,
+      pagination
-      :object_activity
     )
   end
 

lib/pleroma/web/activity_pub/activity_pub_controller.ex

@@ -514,7 +514,6 @@ defp ensure_user_keys_present_and_maybe_refresh_for_user(user, for_user) do
     {new_user, for_user}
   end
 
-  # TODO: Add support for "object" field
   @doc """
   Endpoint based on <https://www.w3.org/wiki/SocialCG/ActivityPub/MediaUpload>
 
@@ -525,6 +524,8 @@ defp ensure_user_keys_present_and_maybe_refresh_for_user(user, for_user) do
   Response:
   - HTTP Code: 201 Created
   - HTTP Body: ActivityPub object to be inserted into another's `attachment` field
+
+  Note: Will not point to a URL with a `Location` header because no standalone Activity has been created.
   """
   def upload_media(%{assigns: %{user: %User{} = user}} = conn, %{"file" => file} = data) do
     with {:ok, object} <-

lib/pleroma/web/activity_pub/builder.ex

@@ -5,6 +5,7 @@ defmodule Pleroma.Web.ActivityPub.Builder do
   This module encodes our addressing policies and general shape of our objects.
   """
 
+  alias Pleroma.Emoji
   alias Pleroma.Object
   alias Pleroma.User
   alias Pleroma.Web.ActivityPub.Relay
@@ -65,6 +66,42 @@ def delete(actor, object_id) do
      }, []}
   end
 
+  def create(actor, object, recipients) do
+    {:ok,
+     %{
+       "id" => Utils.generate_activity_id(),
+       "actor" => actor.ap_id,
+       "to" => recipients,
+       "object" => object,
+       "type" => "Create",
+       "published" => DateTime.utc_now() |> DateTime.to_iso8601()
+     }, []}
+  end
+
+  def chat_message(actor, recipient, content, opts \\ []) do
+    basic = %{
+      "id" => Utils.generate_object_id(),
+      "actor" => actor.ap_id,
+      "type" => "ChatMessage",
+      "to" => [recipient],
+      "content" => content,
+      "published" => DateTime.utc_now() |> DateTime.to_iso8601(),
+      "emoji" => Emoji.Formatter.get_emoji_map(content)
+    }
+
+    case opts[:attachment] do
+      %Object{data: attachment_data} ->
+        {
+          :ok,
+          Map.put(basic, "attachment", attachment_data),
+          []
+        }
+
+      _ ->
+        {:ok, basic, []}
+    end
+  end
+
   @spec tombstone(String.t(), String.t()) :: {:ok, map(), keyword()}
   def tombstone(actor, id) do
     {:ok,

lib/pleroma/web/activity_pub/mrf.ex

@@ -8,18 +8,15 @@ defmodule Pleroma.Web.ActivityPub.MRF do
   def filter(policies, %{} = object) do
     policies
     |> Enum.reduce({:ok, object}, fn
-      policy, {:ok, object} ->
+      policy, {:ok, object} -> policy.filter(object)
-        policy.filter(object)
+      _, error -> error
-
-      _, error ->
-        error
     end)
   end
 
   def filter(%{} = object), do: get_policies() |> filter(object)
 
   def get_policies do
-    Pleroma.Config.get([:instance, :rewrite_policy], []) |> get_policies()
+    Pleroma.Config.get([:mrf, :policies], []) |> get_policies()
   end
 
   defp get_policies(policy) when is_atom(policy), do: [policy]
@@ -54,7 +51,7 @@ def describe(policies) do
       get_policies()
       |> Enum.map(fn policy -> to_string(policy) |> String.split(".") |> List.last() end)
 
-    exclusions = Pleroma.Config.get([:instance, :mrf_transparency_exclusions])
+    exclusions = Pleroma.Config.get([:mrf, :transparency_exclusions])
 
     base =
       %{

lib/pleroma/web/activity_pub/mrf/activity_expiration_policy.ex

@@ -0,0 +1,43 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.MRF.ActivityExpirationPolicy do
+  @moduledoc "Adds expiration to all local Create activities"
+  @behaviour Pleroma.Web.ActivityPub.MRF
+
+  @impl true
+  def filter(activity) do
+    activity =
+      if note?(activity) and local?(activity) do
+        maybe_add_expiration(activity)
+      else
+        activity
+      end
+
+    {:ok, activity}
+  end
+
+  @impl true
+  def describe, do: {:ok, %{}}
+
+  defp local?(%{"id" => id}) do
+    String.starts_with?(id, Pleroma.Web.Endpoint.url())
+  end
+
+  defp note?(activity) do
+    match?(%{"type" => "Create", "object" => %{"type" => "Note"}}, activity)
+  end
+
+  defp maybe_add_expiration(activity) do
+    days = Pleroma.Config.get([:mrf_activity_expiration, :days], 365)
+    expires_at = NaiveDateTime.utc_now() |> Timex.shift(days: days)
+
+    with %{"expires_at" => existing_expires_at} <- activity,
+         :lt <- NaiveDateTime.compare(existing_expires_at, expires_at) do
+      activity
+    else
+      _ -> Map.put(activity, "expires_at", expires_at)
+    end
+  end
+end

lib/pleroma/web/activity_pub/mrf/hellthread_policy.ex

@@ -13,8 +13,10 @@ defmodule Pleroma.Web.ActivityPub.MRF.HellthreadPolicy do
 
   defp delist_message(message, threshold) when threshold > 0 do
     follower_collection = User.get_cached_by_ap_id(message["actor"]).follower_address
+    to = message["to"] || []
+    cc = message["cc"] || []
 
-    follower_collection? = Enum.member?(message["to"] ++ message["cc"], follower_collection)
+    follower_collection? = Enum.member?(to ++ cc, follower_collection)
 
     message =
       case get_recipient_count(message) do
@@ -71,7 +73,8 @@ defp get_recipient_count(message) do
   end
 
   @impl true
-  def filter(%{"type" => "Create"} = message) do
+  def filter(%{"type" => "Create", "object" => %{"type" => object_type}} = message)
+      when object_type in ~w{Note Article} do
     reject_threshold =
       Pleroma.Config.get(
         [:mrf_hellthread, :reject_threshold],

lib/pleroma/web/activity_pub/mrf/simple_policy.ex

@@ -3,21 +3,23 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
-  alias Pleroma.User
-  alias Pleroma.Web.ActivityPub.MRF
   @moduledoc "Filter activities depending on their origin instance"
   @behaviour Pleroma.Web.ActivityPub.MRF
 
+  alias Pleroma.Config
+  alias Pleroma.User
+  alias Pleroma.Web.ActivityPub.MRF
+
   require Pleroma.Constants
 
   defp check_accept(%{host: actor_host} = _actor_info, object) do
     accepts =
-      Pleroma.Config.get([:mrf_simple, :accept])
+      Config.get([:mrf_simple, :accept])
       |> MRF.subdomains_regex()
 
     cond do
       accepts == [] -> {:ok, object}
-      actor_host == Pleroma.Config.get([Pleroma.Web.Endpoint, :url, :host]) -> {:ok, object}
+      actor_host == Config.get([Pleroma.Web.Endpoint, :url, :host]) -> {:ok, object}
       MRF.subdomain_match?(accepts, actor_host) -> {:ok, object}
       true -> {:reject, nil}
     end
@@ -25,7 +27,7 @@ defp check_accept(%{host: actor_host} = _actor_info, object) do
 
   defp check_reject(%{host: actor_host} = _actor_info, object) do
     rejects =
-      Pleroma.Config.get([:mrf_simple, :reject])
+      Config.get([:mrf_simple, :reject])
       |> MRF.subdomains_regex()
 
     if MRF.subdomain_match?(rejects, actor_host) do
@@ -41,7 +43,7 @@ defp check_media_removal(
        )
        when length(child_attachment) > 0 do
     media_removal =
-      Pleroma.Config.get([:mrf_simple, :media_removal])
+      Config.get([:mrf_simple, :media_removal])
       |> MRF.subdomains_regex()
 
     object =
@@ -65,7 +67,7 @@ defp check_media_nsfw(
          } = object
        ) do
     media_nsfw =
-      Pleroma.Config.get([:mrf_simple, :media_nsfw])
+      Config.get([:mrf_simple, :media_nsfw])
       |> MRF.subdomains_regex()
 
     object =
@@ -85,7 +87,7 @@ defp check_media_nsfw(_actor_info, object), do: {:ok, object}
 
   defp check_ftl_removal(%{host: actor_host} = _actor_info, object) do
     timeline_removal =
-      Pleroma.Config.get([:mrf_simple, :federated_timeline_removal])
+      Config.get([:mrf_simple, :federated_timeline_removal])
       |> MRF.subdomains_regex()
 
     object =
@@ -108,7 +110,7 @@ defp check_ftl_removal(%{host: actor_host} = _actor_info, object) do
 
   defp check_report_removal(%{host: actor_host} = _actor_info, %{"type" => "Flag"} = object) do
     report_removal =
-      Pleroma.Config.get([:mrf_simple, :report_removal])
+      Config.get([:mrf_simple, :report_removal])
       |> MRF.subdomains_regex()
 
     if MRF.subdomain_match?(report_removal, actor_host) do
@@ -122,7 +124,7 @@ defp check_report_removal(_actor_info, object), do: {:ok, object}
 
   defp check_avatar_removal(%{host: actor_host} = _actor_info, %{"icon" => _icon} = object) do
     avatar_removal =
-      Pleroma.Config.get([:mrf_simple, :avatar_removal])
+      Config.get([:mrf_simple, :avatar_removal])
       |> MRF.subdomains_regex()
 
     if MRF.subdomain_match?(avatar_removal, actor_host) do
@@ -136,7 +138,7 @@ defp check_avatar_removal(_actor_info, object), do: {:ok, object}
 
   defp check_banner_removal(%{host: actor_host} = _actor_info, %{"image" => _image} = object) do
     banner_removal =
-      Pleroma.Config.get([:mrf_simple, :banner_removal])
+      Config.get([:mrf_simple, :banner_removal])
       |> MRF.subdomains_regex()
 
     if MRF.subdomain_match?(banner_removal, actor_host) do
@@ -197,10 +199,10 @@ def filter(object), do: {:ok, object}
 
   @impl true
   def describe do
-    exclusions = Pleroma.Config.get([:instance, :mrf_transparency_exclusions])
+    exclusions = Config.get([:mrf, :transparency_exclusions])
 
     mrf_simple =
-      Pleroma.Config.get(:mrf_simple)
+      Config.get(:mrf_simple)
       |> Enum.map(fn {k, v} -> {k, Enum.reject(v, fn v -> v in exclusions end)} end)
       |> Enum.into(%{})
 

lib/pleroma/web/activity_pub/mrf/user_allow_list_policy.ex

@@ -24,7 +24,7 @@ def filter(%{"actor" => actor} = object) do
 
     allow_list =
       Config.get(
-        [:mrf_user_allowlist, String.to_atom(actor_info.host)],
+        [:mrf_user_allowlist, actor_info.host],
         []
       )
 

lib/pleroma/web/activity_pub/object_validator.ex

@@ -9,13 +9,15 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidator do
   the system.
   """
 
+  alias Pleroma.EctoType.ActivityPub.ObjectValidators
   alias Pleroma.Object
   alias Pleroma.User
   alias Pleroma.Web.ActivityPub.ObjectValidators.AnnounceValidator
+  alias Pleroma.Web.ActivityPub.ObjectValidators.ChatMessageValidator
+  alias Pleroma.Web.ActivityPub.ObjectValidators.CreateChatMessageValidator
   alias Pleroma.Web.ActivityPub.ObjectValidators.DeleteValidator
   alias Pleroma.Web.ActivityPub.ObjectValidators.EmojiReactValidator
   alias Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator
-  alias Pleroma.Web.ActivityPub.ObjectValidators.Types
   alias Pleroma.Web.ActivityPub.ObjectValidators.UndoValidator
 
   @spec validate(map(), keyword()) :: {:ok, map(), keyword()} | {:error, any()}
@@ -43,8 +45,20 @@ def validate(%{"type" => "Delete"} = object, meta) do
 
   def validate(%{"type" => "Like"} = object, meta) do
     with {:ok, object} <-
-           object |> LikeValidator.cast_and_validate() |> Ecto.Changeset.apply_action(:insert) do
+           object
-      object = stringify_keys(object |> Map.from_struct())
+           |> LikeValidator.cast_and_validate()
+           |> Ecto.Changeset.apply_action(:insert) do
+      object = stringify_keys(object)
+      {:ok, object, meta}
+    end
+  end
+
+  def validate(%{"type" => "ChatMessage"} = object, meta) do
+    with {:ok, object} <-
+           object
+           |> ChatMessageValidator.cast_and_validate()
+           |> Ecto.Changeset.apply_action(:insert) do
+      object = stringify_keys(object)
       {:ok, object, meta}
     end
   end
@@ -59,6 +73,18 @@ def validate(%{"type" => "EmojiReact"} = object, meta) do
     end
   end
 
+  def validate(%{"type" => "Create", "object" => object} = create_activity, meta) do
+    with {:ok, object_data} <- cast_and_apply(object),
+         meta = Keyword.put(meta, :object_data, object_data |> stringify_keys),
+         {:ok, create_activity} <-
+           create_activity
+           |> CreateChatMessageValidator.cast_and_validate(meta)
+           |> Ecto.Changeset.apply_action(:insert) do
+      create_activity = stringify_keys(create_activity)
+      {:ok, create_activity, meta}
+    end
+  end
+
   def validate(%{"type" => "Announce"} = object, meta) do
     with {:ok, object} <-
            object
@@ -69,19 +95,32 @@ def validate(%{"type" => "Announce"} = object, meta) do
     end
   end
 
+  def cast_and_apply(%{"type" => "ChatMessage"} = object) do
+    ChatMessageValidator.cast_and_apply(object)
+  end
+
+  def cast_and_apply(o), do: {:error, {:validator_not_set, o}}
+
   def stringify_keys(%{__struct__: _} = object) do
     object
     |> Map.from_struct()
     |> stringify_keys
   end
 
-  def stringify_keys(object) do
+  def stringify_keys(object) when is_map(object) do
     object
-    |> Map.new(fn {key, val} -> {to_string(key), val} end)
+    |> Map.new(fn {key, val} -> {to_string(key), stringify_keys(val)} end)
   end
 
+  def stringify_keys(object) when is_list(object) do
+    object
+    |> Enum.map(&stringify_keys/1)
+  end
+
+  def stringify_keys(object), do: object
+
   def fetch_actor(object) do
-    with {:ok, actor} <- Types.ObjectID.cast(object["actor"]) do
+    with {:ok, actor} <- ObjectValidators.ObjectID.cast(object["actor"]) do
       User.get_or_fetch_by_ap_id(actor)
     end
   end

lib/pleroma/web/activity_pub/object_validators/announce_validator.ex

@@ -5,9 +5,9 @@
 defmodule Pleroma.Web.ActivityPub.ObjectValidators.AnnounceValidator do
   use Ecto.Schema
 
+  alias Pleroma.EctoType.ActivityPub.ObjectValidators
   alias Pleroma.Object
   alias Pleroma.User
-  alias Pleroma.Web.ActivityPub.ObjectValidators.Types
   alias Pleroma.Web.ActivityPub.Utils
   alias Pleroma.Web.ActivityPub.Visibility
 
@@ -19,14 +19,14 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.AnnounceValidator do
   @primary_key false
 
   embedded_schema do
-    field(:id, Types.ObjectID, primary_key: true)
+    field(:id, ObjectValidators.ObjectID, primary_key: true)
     field(:type, :string)
-    field(:object, Types.ObjectID)
+    field(:object, ObjectValidators.ObjectID)
-    field(:actor, Types.ObjectID)
+    field(:actor, ObjectValidators.ObjectID)
     field(:context, :string, autogenerate: {Utils, :generate_context_id, []})
-    field(:to, Types.Recipients, default: [])
+    field(:to, ObjectValidators.Recipients, default: [])
-    field(:cc, Types.Recipients, default: [])
+    field(:cc, ObjectValidators.Recipients, default: [])
-    field(:published, Types.DateTime)
+    field(:published, ObjectValidators.DateTime)
   end
 
   def cast_and_validate(data) do

lib/pleroma/web/activity_pub/object_validators/attachment_validator.ex

@@ -0,0 +1,80 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.ObjectValidators.AttachmentValidator do
+  use Ecto.Schema
+
+  alias Pleroma.Web.ActivityPub.ObjectValidators.UrlObjectValidator
+
+  import Ecto.Changeset
+
+  @primary_key false
+  embedded_schema do
+    field(:type, :string)
+    field(:mediaType, :string, default: "application/octet-stream")
+    field(:name, :string)
+
+    embeds_many(:url, UrlObjectValidator)
+  end
+
+  def cast_and_validate(data) do
+    data
+    |> cast_data()
+    |> validate_data()
+  end
+
+  def cast_data(data) do
+    %__MODULE__{}
+    |> changeset(data)
+  end
+
+  def changeset(struct, data) do
+    data =
+      data
+      |> fix_media_type()
+      |> fix_url()
+
+    struct
+    |> cast(data, [:type, :mediaType, :name])
+    |> cast_embed(:url, required: true)
+  end
+
+  def fix_media_type(data) do
+    data =
+      data
+      |> Map.put_new("mediaType", data["mimeType"])
+
+    if MIME.valid?(data["mediaType"]) do
+      data
+    else
+      data
+      |> Map.put("mediaType", "application/octet-stream")
+    end
+  end
+
+  def fix_url(data) do
+    case data["url"] do
+      url when is_binary(url) ->
+        data
+        |> Map.put(
+          "url",
+          [
+            %{
+              "href" => url,
+              "type" => "Link",
+              "mediaType" => data["mediaType"]
+            }
+          ]
+        )
+
+      _ ->
+        data
+    end
+  end
+
+  def validate_data(cng) do
+    cng
+    |> validate_required([:mediaType, :url, :type])
+  end
+end

lib/pleroma/web/activity_pub/object_validators/chat_message_validator.ex

@@ -0,0 +1,123 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.ObjectValidators.ChatMessageValidator do
+  use Ecto.Schema
+
+  alias Pleroma.EctoType.ActivityPub.ObjectValidators
+  alias Pleroma.User
+  alias Pleroma.Web.ActivityPub.ObjectValidators.AttachmentValidator
+
+  import Ecto.Changeset
+  import Pleroma.Web.ActivityPub.Transmogrifier, only: [fix_emoji: 1]
+
+  @primary_key false
+  @derive Jason.Encoder
+
+  embedded_schema do
+    field(:id, ObjectValidators.ObjectID, primary_key: true)
+    field(:to, ObjectValidators.Recipients, default: [])
+    field(:type, :string)
+    field(:content, ObjectValidators.SafeText)
+    field(:actor, ObjectValidators.ObjectID)
+    field(:published, ObjectValidators.DateTime)
+    field(:emoji, :map, default: %{})
+
+    embeds_one(:attachment, AttachmentValidator)
+  end
+
+  def cast_and_apply(data) do
+    data
+    |> cast_data
+    |> apply_action(:insert)
+  end
+
+  def cast_and_validate(data) do
+    data
+    |> cast_data()
+    |> validate_data()
+  end
+
+  def cast_data(data) do
+    %__MODULE__{}
+    |> changeset(data)
+  end
+
+  def fix(data) do
+    data
+    |> fix_emoji()
+    |> fix_attachment()
+    |> Map.put_new("actor", data["attributedTo"])
+  end
+
+  # Throws everything but the first one away
+  def fix_attachment(%{"attachment" => [attachment | _]} = data) do
+    data
+    |> Map.put("attachment", attachment)
+  end
+
+  def fix_attachment(data), do: data
+
+  def changeset(struct, data) do
+    data = fix(data)
+
+    struct
+    |> cast(data, List.delete(__schema__(:fields), :attachment))
+    |> cast_embed(:attachment)
+  end
+
+  def validate_data(data_cng) do
+    data_cng
+    |> validate_inclusion(:type, ["ChatMessage"])
+    |> validate_required([:id, :actor, :to, :type, :published])
+    |> validate_content_or_attachment()
+    |> validate_length(:to, is: 1)
+    |> validate_length(:content, max: Pleroma.Config.get([:instance, :remote_limit]))
+    |> validate_local_concern()
+  end
+
+  def validate_content_or_attachment(cng) do
+    attachment = get_field(cng, :attachment)
+
+    if attachment do
+      cng
+    else
+      cng
+      |> validate_required([:content])
+    end
+  end
+
+  @doc """
+  Validates the following
+  - If both users are in our system
+  - If at least one of the users in this ChatMessage is a local user
+  - If the recipient is not blocking the actor
+  """
+  def validate_local_concern(cng) do
+    with actor_ap <- get_field(cng, :actor),
+         {_, %User{} = actor} <- {:find_actor, User.get_cached_by_ap_id(actor_ap)},
+         {_, %User{} = recipient} <-
+           {:find_recipient, User.get_cached_by_ap_id(get_field(cng, :to) |> hd())},
+         {_, false} <- {:blocking_actor?, User.blocks?(recipient, actor)},
+         {_, true} <- {:local?, Enum.any?([actor, recipient], & &1.local)} do
+      cng
+    else
+      {:blocking_actor?, true} ->
+        cng
+        |> add_error(:actor, "actor is blocked by recipient")
+
+      {:local?, false} ->
+        cng
+        |> add_error(:actor, "actor and recipient are both remote")
+
+      {:find_actor, _} ->
+        cng
+        |> add_error(:actor, "can't find user")
+
+      {:find_recipient, _} ->
+        cng
+        |> add_error(:to, "can't find user")
+    end
+  end
+end

lib/pleroma/web/activity_pub/object_validators/create_chat_message_validator.ex

@@ -0,0 +1,91 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+# NOTES
+# - Can probably be a generic create validator
+# - doesn't embed, will only get the object id
+defmodule Pleroma.Web.ActivityPub.ObjectValidators.CreateChatMessageValidator do
+  use Ecto.Schema
+  alias Pleroma.EctoType.ActivityPub.ObjectValidators
+
+  alias Pleroma.Object
+
+  import Ecto.Changeset
+  import Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations
+
+  @primary_key false
+
+  embedded_schema do
+    field(:id, ObjectValidators.ObjectID, primary_key: true)
+    field(:actor, ObjectValidators.ObjectID)
+    field(:type, :string)
+    field(:to, ObjectValidators.Recipients, default: [])
+    field(:object, ObjectValidators.ObjectID)
+  end
+
+  def cast_and_apply(data) do
+    data
+    |> cast_data
+    |> apply_action(:insert)
+  end
+
+  def cast_data(data) do
+    cast(%__MODULE__{}, data, __schema__(:fields))
+  end
+
+  def cast_and_validate(data, meta \\ []) do
+    cast_data(data)
+    |> validate_data(meta)
+  end
+
+  def validate_data(cng, meta \\ []) do
+    cng
+    |> validate_required([:id, :actor, :to, :type, :object])
+    |> validate_inclusion(:type, ["Create"])
+    |> validate_actor_presence()
+    |> validate_recipients_match(meta)
+    |> validate_actors_match(meta)
+    |> validate_object_nonexistence()
+  end
+
+  def validate_object_nonexistence(cng) do
+    cng
+    |> validate_change(:object, fn :object, object_id ->
+      if Object.get_cached_by_ap_id(object_id) do
+        [{:object, "The object to create already exists"}]
+      else
+        []
+      end
+    end)
+  end
+
+  def validate_actors_match(cng, meta) do
+    object_actor = meta[:object_data]["actor"]
+
+    cng
+    |> validate_change(:actor, fn :actor, actor ->
+      if actor == object_actor do
+        []
+      else
+        [{:actor, "Actor doesn't match with object actor"}]
+      end
+    end)
+  end
+
+  def validate_recipients_match(cng, meta) do
+    object_recipients = meta[:object_data]["to"] || []
+
+    cng
+    |> validate_change(:to, fn :to, recipients ->
+      activity_set = MapSet.new(recipients)
+      object_set = MapSet.new(object_recipients)
+
+      if MapSet.equal?(activity_set, object_set) do
+        []
+      else
+        [{:to, "Recipients don't match with object recipients"}]
+      end
+    end)
+  end
+end

lib/pleroma/web/activity_pub/object_validators/create_note_validator.ex

@@ -5,16 +5,16 @@
 defmodule Pleroma.Web.ActivityPub.ObjectValidators.CreateNoteValidator do
   use Ecto.Schema
 
+  alias Pleroma.EctoType.ActivityPub.ObjectValidators
   alias Pleroma.Web.ActivityPub.ObjectValidators.NoteValidator
-  alias Pleroma.Web.ActivityPub.ObjectValidators.Types
 
   import Ecto.Changeset
 
   @primary_key false
 
   embedded_schema do
-    field(:id, Types.ObjectID, primary_key: true)
+    field(:id, ObjectValidators.ObjectID, primary_key: true)
-    field(:actor, Types.ObjectID)
+    field(:actor, ObjectValidators.ObjectID)
     field(:type, :string)
     field(:to, {:array, :string})
     field(:cc, {:array, :string})

lib/pleroma/web/activity_pub/object_validators/delete_validator.ex

@@ -6,8 +6,8 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.DeleteValidator do
   use Ecto.Schema
 
   alias Pleroma.Activity
+  alias Pleroma.EctoType.ActivityPub.ObjectValidators
   alias Pleroma.User
-  alias Pleroma.Web.ActivityPub.ObjectValidators.Types
 
   import Ecto.Changeset
   import Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations
@@ -15,13 +15,13 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.DeleteValidator do
   @primary_key false
 
   embedded_schema do
-    field(:id, Types.ObjectID, primary_key: true)
+    field(:id, ObjectValidators.ObjectID, primary_key: true)
     field(:type, :string)
-    field(:actor, Types.ObjectID)
+    field(:actor, ObjectValidators.ObjectID)
-    field(:to, Types.Recipients, default: [])
+    field(:to, ObjectValidators.Recipients, default: [])
-    field(:cc, Types.Recipients, default: [])
+    field(:cc, ObjectValidators.Recipients, default: [])
-    field(:deleted_activity_id, Types.ObjectID)
+    field(:deleted_activity_id, ObjectValidators.ObjectID)
-    field(:object, Types.ObjectID)
+    field(:object, ObjectValidators.ObjectID)
   end
 
   def cast_data(data) do
@@ -46,12 +46,13 @@ def add_deleted_activity_id(cng) do
     Answer
     Article
     Audio
+    ChatMessage
     Event
     Note
     Page
     Question
-    Video
     Tombstone
+    Video
   }
   def validate_data(cng) do
     cng

lib/pleroma/web/activity_pub/object_validators/emoji_react_validator.ex

@@ -5,8 +5,8 @@
 defmodule Pleroma.Web.ActivityPub.ObjectValidators.EmojiReactValidator do
   use Ecto.Schema
 
+  alias Pleroma.EctoType.ActivityPub.ObjectValidators
   alias Pleroma.Object
-  alias Pleroma.Web.ActivityPub.ObjectValidators.Types
 
   import Ecto.Changeset
   import Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations
@@ -14,10 +14,10 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.EmojiReactValidator do
   @primary_key false
 
   embedded_schema do
-    field(:id, Types.ObjectID, primary_key: true)
+    field(:id, ObjectValidators.ObjectID, primary_key: true)
     field(:type, :string)
-    field(:object, Types.ObjectID)
+    field(:object, ObjectValidators.ObjectID)
-    field(:actor, Types.ObjectID)
+    field(:actor, ObjectValidators.ObjectID)
     field(:context, :string)
     field(:content, :string)
     field(:to, {:array, :string}, default: [])

lib/pleroma/web/activity_pub/object_validators/like_validator.ex

@@ -5,8 +5,8 @@
 defmodule Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator do
   use Ecto.Schema
 
+  alias Pleroma.EctoType.ActivityPub.ObjectValidators
   alias Pleroma.Object
-  alias Pleroma.Web.ActivityPub.ObjectValidators.Types
   alias Pleroma.Web.ActivityPub.Utils
 
   import Ecto.Changeset
@@ -15,13 +15,13 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator do
   @primary_key false
 
   embedded_schema do
-    field(:id, Types.ObjectID, primary_key: true)
+    field(:id, ObjectValidators.ObjectID, primary_key: true)
     field(:type, :string)
-    field(:object, Types.ObjectID)
+    field(:object, ObjectValidators.ObjectID)
-    field(:actor, Types.ObjectID)
+    field(:actor, ObjectValidators.ObjectID)
     field(:context, :string)
-    field(:to, Types.Recipients, default: [])
+    field(:to, ObjectValidators.Recipients, default: [])
-    field(:cc, Types.Recipients, default: [])
+    field(:cc, ObjectValidators.Recipients, default: [])
   end
 
   def cast_and_validate(data) do
@@ -67,7 +67,7 @@ def fix_recipients(cng) do
 
     with {[], []} <- {to, cc},
          %Object{data: %{"actor" => actor}} <- Object.get_cached_by_ap_id(object),
-         {:ok, actor} <- Types.ObjectID.cast(actor) do
+         {:ok, actor} <- ObjectValidators.ObjectID.cast(actor) do
       cng
       |> put_change(:to, [actor])
     else

lib/pleroma/web/activity_pub/object_validators/note_validator.ex

@@ -5,14 +5,14 @@
 defmodule Pleroma.Web.ActivityPub.ObjectValidators.NoteValidator do
   use Ecto.Schema
 
-  alias Pleroma.Web.ActivityPub.ObjectValidators.Types
+  alias Pleroma.EctoType.ActivityPub.ObjectValidators
 
   import Ecto.Changeset
 
   @primary_key false
 
   embedded_schema do
-    field(:id, Types.ObjectID, primary_key: true)
+    field(:id, ObjectValidators.ObjectID, primary_key: true)
     field(:to, {:array, :string}, default: [])
     field(:cc, {:array, :string}, default: [])
     field(:bto, {:array, :string}, default: [])
@@ -22,10 +22,10 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.NoteValidator do
     field(:type, :string)
     field(:content, :string)
     field(:context, :string)
-    field(:actor, Types.ObjectID)
+    field(:actor, ObjectValidators.ObjectID)
-    field(:attributedTo, Types.ObjectID)
+    field(:attributedTo, ObjectValidators.ObjectID)
     field(:summary, :string)
-    field(:published, Types.DateTime)
+    field(:published, ObjectValidators.DateTime)
     # TODO: Write type
     field(:emoji, :map, default: %{})
     field(:sensitive, :boolean, default: false)
@@ -35,13 +35,12 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.NoteValidator do
     field(:like_count, :integer, default: 0)
     field(:announcement_count, :integer, default: 0)
     field(:inRepyTo, :string)
-    field(:uri, Types.Uri)
+    field(:uri, ObjectValidators.Uri)
 
     field(:likes, {:array, :string}, default: [])
     field(:announcements, {:array, :string}, default: [])
 
     # see if needed
-    field(:conversation, :string)
     field(:context_id, :string)
   end
 

lib/pleroma/web/activity_pub/object_validators/types/recipients.ex

@@ -1,34 +0,0 @@
-defmodule Pleroma.Web.ActivityPub.ObjectValidators.Types.Recipients do
-  use Ecto.Type
-
-  alias Pleroma.Web.ActivityPub.ObjectValidators.Types.ObjectID
-
-  def type, do: {:array, ObjectID}
-
-  def cast(object) when is_binary(object) do
-    cast([object])
-  end
-
-  def cast(data) when is_list(data) do
-    data
-    |> Enum.reduce({:ok, []}, fn element, acc ->
-      case {acc, ObjectID.cast(element)} do
-        {:error, _} -> :error
-        {_, :error} -> :error
-        {{:ok, list}, {:ok, id}} -> {:ok, [id | list]}
-      end
-    end)
-  end
-
-  def cast(_) do
-    :error
-  end
-
-  def dump(data) do
-    {:ok, data}
-  end
-
-  def load(data) do
-    {:ok, data}
-  end
-end

lib/pleroma/web/activity_pub/object_validators/undo_validator.ex

@@ -6,7 +6,7 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.UndoValidator do
   use Ecto.Schema
 
   alias Pleroma.Activity
-  alias Pleroma.Web.ActivityPub.ObjectValidators.Types
+  alias Pleroma.EctoType.ActivityPub.ObjectValidators
 
   import Ecto.Changeset
   import Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations
@@ -14,10 +14,10 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.UndoValidator do
   @primary_key false
 
   embedded_schema do
-    field(:id, Types.ObjectID, primary_key: true)
+    field(:id, ObjectValidators.ObjectID, primary_key: true)
     field(:type, :string)
-    field(:object, Types.ObjectID)
+    field(:object, ObjectValidators.ObjectID)
-    field(:actor, Types.ObjectID)
+    field(:actor, ObjectValidators.ObjectID)
     field(:to, {:array, :string}, default: [])
     field(:cc, {:array, :string}, default: [])
   end

lib/pleroma/web/activity_pub/object_validators/url_object_validator.ex

@@ -0,0 +1,24 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.ObjectValidators.UrlObjectValidator do
+  use Ecto.Schema
+
+  alias Pleroma.EctoType.ActivityPub.ObjectValidators
+
+  import Ecto.Changeset
+  @primary_key false
+
+  embedded_schema do
+    field(:type, :string)
+    field(:href, ObjectValidators.Uri)
+    field(:mediaType, :string)
+  end
+
+  def changeset(struct, data) do
+    struct
+    |> cast(data, __schema__(:fields))
+    |> validate_required([:type, :href, :mediaType])
+  end
+end

lib/pleroma/web/activity_pub/pipeline.ex

@@ -17,6 +17,10 @@ defmodule Pleroma.Web.ActivityPub.Pipeline do
           {:ok, Activity.t() | Object.t(), keyword()} | {:error, any()}
   def common_pipeline(object, meta) do
     case Repo.transaction(fn -> do_common_pipeline(object, meta) end) do
+      {:ok, {:ok, activity, meta}} ->
+        SideEffects.handle_after_transaction(meta)
+        {:ok, activity, meta}
+
       {:ok, value} ->
         value
 

lib/pleroma/web/activity_pub/side_effects.ex

@@ -6,12 +6,17 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do
   collection, and so on.
   """
   alias Pleroma.Activity
+  alias Pleroma.Chat
+  alias Pleroma.Chat.MessageReference
   alias Pleroma.Notification
   alias Pleroma.Object
   alias Pleroma.Repo
   alias Pleroma.User
   alias Pleroma.Web.ActivityPub.ActivityPub
+  alias Pleroma.Web.ActivityPub.Pipeline
   alias Pleroma.Web.ActivityPub.Utils
+  alias Pleroma.Web.Push
+  alias Pleroma.Web.Streamer
 
   def handle(object, meta \\ [])
 
@@ -27,6 +32,24 @@ def handle(%{data: %{"type" => "Like"}} = object, meta) do
     {:ok, object, meta}
   end
 
+  # Tasks this handles
+  # - Actually create object
+  # - Rollback if we couldn't create it
+  # - Set up notifications
+  def handle(%{data: %{"type" => "Create"}} = activity, meta) do
+    with {:ok, _object, meta} <- handle_object_creation(meta[:object_data], meta) do
+      {:ok, notifications} = Notification.create_notifications(activity, do_send: false)
+
+      meta =
+        meta
+        |> add_notifications(notifications)
+
+      {:ok, activity, meta}
+    else
+      e -> Repo.rollback(e)
+    end
+  end
+
   # Tasks this handles:
   # - Add announce to object
   # - Set up notification
@@ -88,6 +111,8 @@ def handle(%{data: %{"type" => "Delete", "object" => deleted_object}} = object,
               Object.decrease_replies_count(in_reply_to)
             end
 
+            MessageReference.delete_for_object(deleted_object)
+
             ActivityPub.stream_out(object)
             ActivityPub.stream_out_participations(deleted_object, user)
             :ok
@@ -112,6 +137,39 @@ def handle(object, meta) do
     {:ok, object, meta}
   end
 
+  def handle_object_creation(%{"type" => "ChatMessage"} = object, meta) do
+    with {:ok, object, meta} <- Pipeline.common_pipeline(object, meta) do
+      actor = User.get_cached_by_ap_id(object.data["actor"])
+      recipient = User.get_cached_by_ap_id(hd(object.data["to"]))
+
+      streamables =
+        [[actor, recipient], [recipient, actor]]
+        |> Enum.map(fn [user, other_user] ->
+          if user.local do
+            {:ok, chat} = Chat.bump_or_create(user.id, other_user.ap_id)
+            {:ok, cm_ref} = MessageReference.create(chat, object, user.ap_id != actor.ap_id)
+
+            {
+              ["user", "user:pleroma_chat"],
+              {user, %{cm_ref | chat: chat, object: object}}
+            }
+          end
+        end)
+        |> Enum.filter(& &1)
+
+      meta =
+        meta
+        |> add_streamables(streamables)
+
+      {:ok, object, meta}
+    end
+  end
+
+  # Nothing to do
+  def handle_object_creation(object) do
+    {:ok, object}
+  end
+
   def handle_undoing(%{data: %{"type" => "Like"}} = object) do
     with %Object{} = liked_object <- Object.get_by_ap_id(object.data["object"]),
          {:ok, _} <- Utils.remove_like_from_object(object, liked_object),
@@ -148,4 +206,43 @@ def handle_undoing(
   end
 
   def handle_undoing(object), do: {:error, ["don't know how to handle", object]}
+
+  defp send_notifications(meta) do
+    Keyword.get(meta, :notifications, [])
+    |> Enum.each(fn notification ->
+      Streamer.stream(["user", "user:notification"], notification)
+      Push.send(notification)
+    end)
+
+    meta
+  end
+
+  defp send_streamables(meta) do
+    Keyword.get(meta, :streamables, [])
+    |> Enum.each(fn {topics, items} ->
+      Streamer.stream(topics, items)
+    end)
+
+    meta
+  end
+
+  defp add_streamables(meta, streamables) do
+    existing = Keyword.get(meta, :streamables, [])
+
+    meta
+    |> Keyword.put(:streamables, streamables ++ existing)
+  end
+
+  defp add_notifications(meta, notifications) do
+    existing = Keyword.get(meta, :notifications, [])
+
+    meta
+    |> Keyword.put(:notifications, notifications ++ existing)
+  end
+
+  def handle_after_transaction(meta) do
+    meta
+    |> send_notifications()
+    |> send_streamables()
+  end
 end

lib/pleroma/web/activity_pub/transmogrifier.ex

@@ -8,8 +8,10 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
   """
   alias Pleroma.Activity
   alias Pleroma.EarmarkRenderer
+  alias Pleroma.EctoType.ActivityPub.ObjectValidators
   alias Pleroma.FollowingRelationship
   alias Pleroma.Maps
+  alias Pleroma.Notification
   alias Pleroma.Object
   alias Pleroma.Object.Containment
   alias Pleroma.Repo
@@ -17,7 +19,6 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
   alias Pleroma.Web.ActivityPub.ActivityPub
   alias Pleroma.Web.ActivityPub.Builder
   alias Pleroma.Web.ActivityPub.ObjectValidator
-  alias Pleroma.Web.ActivityPub.ObjectValidators.Types
   alias Pleroma.Web.ActivityPub.Pipeline
   alias Pleroma.Web.ActivityPub.Utils
   alias Pleroma.Web.ActivityPub.Visibility
@@ -171,8 +172,8 @@ def fix_in_reply_to(%{"inReplyTo" => in_reply_to} = object, options)
         object
         |> Map.put("inReplyTo", replied_object.data["id"])
         |> Map.put("inReplyToAtomUri", object["inReplyToAtomUri"] || in_reply_to_id)
-        |> Map.put("conversation", replied_object.data["context"] || object["conversation"])
         |> Map.put("context", replied_object.data["context"] || object["conversation"])
+        |> Map.drop(["conversation"])
       else
         e ->
           Logger.error("Couldn't fetch #{inspect(in_reply_to_id)}, error: #{inspect(e)}")
@@ -206,7 +207,7 @@ def fix_context(object) do
 
     object
     |> Map.put("context", context)
-    |> Map.put("conversation", context)
+    |> Map.drop(["conversation"])
   end
 
   def fix_attachments(%{"attachment" => attachment} = object) when is_list(attachment) do
@@ -221,9 +222,9 @@ def fix_attachments(%{"attachment" => attachment} = object) when is_list(attachm
 
         media_type =
           cond do
-            is_map(url) && is_binary(url["mediaType"]) -> url["mediaType"]
+            is_map(url) && MIME.valid?(url["mediaType"]) -> url["mediaType"]
-            is_binary(data["mediaType"]) -> data["mediaType"]
+            MIME.valid?(data["mediaType"]) -> data["mediaType"]
-            is_binary(data["mimeType"]) -> data["mimeType"]
+            MIME.valid?(data["mimeType"]) -> data["mimeType"]
             true -> nil
           end
 
@@ -457,7 +458,7 @@ def handle_incoming(
         to: data["to"],
         object: object,
         actor: user,
-        context: object["conversation"],
+        context: object["context"],
         local: false,
         published: data["published"],
         additional:
@@ -527,7 +528,8 @@ def handle_incoming(
            User.get_cached_by_ap_id(Containment.get_actor(%{"actor" => followed})),
          {:ok, %User{} = follower} <-
            User.get_or_fetch_by_ap_id(Containment.get_actor(%{"actor" => follower})),
-         {:ok, activity} <- ActivityPub.follow(follower, followed, id, false) do
+         {:ok, activity} <-
+           ActivityPub.follow(follower, followed, id, false, skip_notify_and_stream: true) do
       with deny_follow_blocked <- Pleroma.Config.get([:user, :deny_follow_blocked]),
            {_, false} <- {:user_blocked, User.blocks?(followed, follower) && deny_follow_blocked},
            {_, false} <- {:user_locked, User.locked?(followed)},
@@ -570,6 +572,7 @@ def handle_incoming(
           :noop
       end
 
+      ActivityPub.notify_and_stream(activity)
       {:ok, activity}
     else
       _e ->
@@ -590,6 +593,8 @@ def handle_incoming(
       User.update_follower_count(followed)
       User.update_following_count(follower)
 
+      Notification.update_notification_type(followed, follow_activity)
+
       ActivityPub.accept(%{
         to: follow_activity.data["to"],
         type: "Accept",
@@ -657,6 +662,16 @@ def handle_incoming(
     |> handle_incoming(options)
   end
 
+  def handle_incoming(
+        %{"type" => "Create", "object" => %{"type" => "ChatMessage"}} = data,
+        _options
+      ) do
+    with {:ok, %User{}} <- ObjectValidator.fetch_actor(data),
+         {:ok, activity, _} <- Pipeline.common_pipeline(data, local: false) do
+      {:ok, activity}
+    end
+  end
+
   def handle_incoming(%{"type" => type} = data, _options)
       when type in ["Like", "EmojiReact", "Announce"] do
     with :ok <- ObjectValidator.fetch_actor_and_object(data),
@@ -710,7 +725,7 @@ def handle_incoming(
     else
       {:error, {:validate_object, _}} = e ->
         # Check if we have a create activity for this
-        with {:ok, object_id} <- Types.ObjectID.cast(data["object"]),
+        with {:ok, object_id} <- ObjectValidators.ObjectID.cast(data["object"]),
              %Activity{data: %{"actor" => actor}} <-
                Activity.create_by_object_ap_id(object_id) |> Repo.one(),
              # We have one, insert a tombstone and retry
@@ -1108,6 +1123,9 @@ def add_attributed_to(object) do
     Map.put(object, "attributedTo", attributed_to)
   end
 
+  # TODO: Revisit this
+  def prepare_attachments(%{"type" => "ChatMessage"} = object), do: object
+
   def prepare_attachments(object) do
     attachments =
       object

lib/pleroma/web/admin_api/controllers/admin_api_controller.ex

@@ -111,8 +111,7 @@ def user_delete(%{assigns: %{user: admin}} = conn, %{"nicknames" => nicknames})
       action: "delete"
     })
 
-    conn
+    json(conn, nicknames)
-    |> json(nicknames)
   end
 
   def user_follow(%{assigns: %{user: admin}} = conn, %{
@@ -131,8 +130,7 @@ def user_follow(%{assigns: %{user: admin}} = conn, %{
       })
     end
 
-    conn
+    json(conn, "ok")
-    |> json("ok")
   end
 
   def user_unfollow(%{assigns: %{user: admin}} = conn, %{
@@ -151,8 +149,7 @@ def user_unfollow(%{assigns: %{user: admin}} = conn, %{
       })
     end
 
-    conn
+    json(conn, "ok")
-    |> json("ok")
   end
 
   def users_create(%{assigns: %{user: admin}} = conn, %{"users" => users}) do
@@ -191,8 +188,7 @@ def users_create(%{assigns: %{user: admin}} = conn, %{"users" => users}) do
           action: "create"
         })
 
-        conn
+        json(conn, res)
-        |> json(res)
 
       {:error, id, changeset, _} ->
         res =
@@ -363,8 +359,8 @@ defp maybe_parse_filters(filters) do
     filters
     |> String.split(",")
     |> Enum.filter(&Enum.member?(@filters, &1))
-    |> Enum.map(&String.to_atom(&1))
+    |> Enum.map(&String.to_atom/1)
-    |> Enum.into(%{}, &{&1, true})
+    |> Map.new(&{&1, true})
   end
 
   def right_add_multiple(%{assigns: %{user: admin}} = conn, %{
@@ -568,10 +564,10 @@ def update_user_credentials(
       {:error, changeset} ->
         errors = Map.new(changeset.errors, fn {key, {error, _}} -> {key, error} end)
 
-        json(conn, %{errors: errors})
+        {:errors, errors}
 
       _ ->
-        json(conn, %{error: "Unable to update user."})
+        {:error, :not_found}
     end
   end
 
@@ -616,7 +612,7 @@ defp configurable_from_database do
   def reload_emoji(conn, _params) do
     Pleroma.Emoji.reload()
 
-    conn |> json("ok")
+    json(conn, "ok")
   end
 
   def confirm_email(%{assigns: %{user: admin}} = conn, %{"nicknames" => nicknames}) do
@@ -630,7 +626,7 @@ def confirm_email(%{assigns: %{user: admin}} = conn, %{"nicknames" => nicknames}
       action: "confirm_email"
     })
 
-    conn |> json("")
+    json(conn, "")
   end
 
   def resend_confirmation_email(%{assigns: %{user: admin}} = conn, %{"nicknames" => nicknames}) do
@@ -644,7 +640,7 @@ def resend_confirmation_email(%{assigns: %{user: admin}} = conn, %{"nicknames" =
       action: "resend_confirmation_email"
     })
 
-    conn |> json("")
+    json(conn, "")
   end
 
   def stats(conn, params) do

lib/pleroma/web/admin_api/controllers/config_controller.ex

@@ -33,7 +33,11 @@ def descriptions(conn, _params) do
   def show(conn, %{only_db: true}) do
     with :ok <- configurable_from_database() do
       configs = Pleroma.Repo.all(ConfigDB)
-      render(conn, "index.json", %{configs: configs})
+
+      render(conn, "index.json", %{
+        configs: configs,
+        need_reboot: Restarter.Pleroma.need_reboot?()
+      })
     end
   end
 
@@ -61,17 +65,20 @@ def show(conn, _params) do
                 value
               end
 
-            %{
+            %ConfigDB{
-              group: ConfigDB.convert(group),
+              group: group,
-              key: ConfigDB.convert(key),
+              key: key,
-              value: ConfigDB.convert(merged_value)
+              value: merged_value
             }
             |> Pleroma.Maps.put_if_present(:db, db)
           end)
         end)
         |> List.flatten()
 
-      json(conn, %{configs: merged, need_reboot: Restarter.Pleroma.need_reboot?()})
+      render(conn, "index.json", %{
+        configs: merged,
+        need_reboot: Restarter.Pleroma.need_reboot?()
+      })
     end
   end
 
@@ -91,24 +98,17 @@ def update(%{body_params: %{configs: configs}} = conn, _) do
 
       {deleted, updated} =
         results
-        |> Enum.map(fn {:ok, config} ->
+        |> Enum.map(fn {:ok, %{key: key, value: value} = config} ->
-          Map.put(config, :db, ConfigDB.get_db_keys(config))
+          Map.put(config, :db, ConfigDB.get_db_keys(value, key))
-        end)
-        |> Enum.split_with(fn config ->
-          Ecto.get_meta(config, :state) == :deleted
         end)
+        |> Enum.split_with(&(Ecto.get_meta(&1, :state) == :deleted))
 
       Config.TransferTask.load_and_update_env(deleted, false)
 
       if not Restarter.Pleroma.need_reboot?() do
         changed_reboot_settings? =
           (updated ++ deleted)
-          |> Enum.any?(fn config ->
+          |> Enum.any?(&Config.TransferTask.pleroma_need_restart?(&1.group, &1.key, &1.value))
-            group = ConfigDB.from_string(config.group)
-            key = ConfigDB.from_string(config.key)
-            value = ConfigDB.from_binary(config.value)
-            Config.TransferTask.pleroma_need_restart?(group, key, value)
-          end)
 
         if changed_reboot_settings?, do: Restarter.Pleroma.need_reboot()
       end

lib/pleroma/web/admin_api/controllers/fallback_controller.ex

@@ -17,6 +17,12 @@ def call(conn, {:error, reason}) do
     |> json(%{error: reason})
   end
 
+  def call(conn, {:errors, errors}) do
+    conn
+    |> put_status(:bad_request)
+    |> json(%{errors: errors})
+  end
+
   def call(conn, {:param_cast, _}) do
     conn
     |> put_status(:bad_request)

lib/pleroma/web/admin_api/controllers/media_proxy_cache_controller.ex

@@ -0,0 +1,63 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.AdminAPI.MediaProxyCacheController do
+  use Pleroma.Web, :controller
+
+  alias Pleroma.Plugs.OAuthScopesPlug
+  alias Pleroma.Web.ApiSpec.Admin, as: Spec
+  alias Pleroma.Web.MediaProxy
+
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
+
+  plug(
+    OAuthScopesPlug,
+    %{scopes: ["read:media_proxy_caches"], admin: true} when action in [:index]
+  )
+
+  plug(
+    OAuthScopesPlug,
+    %{scopes: ["write:media_proxy_caches"], admin: true} when action in [:purge, :delete]
+  )
+
+  action_fallback(Pleroma.Web.AdminAPI.FallbackController)
+
+  defdelegate open_api_operation(action), to: Spec.MediaProxyCacheOperation
+
+  def index(%{assigns: %{user: _}} = conn, params) do
+    cursor =
+      :banned_urls_cache
+      |> :ets.table([{:traverse, {:select, Cachex.Query.create(true, :key)}}])
+      |> :qlc.cursor()
+
+    urls =
+      case params.page do
+        1 ->
+          :qlc.next_answers(cursor, params.page_size)
+
+        _ ->
+          :qlc.next_answers(cursor, (params.page - 1) * params.page_size)
+          :qlc.next_answers(cursor, params.page_size)
+      end
+
+    :qlc.delete_cursor(cursor)
+
+    render(conn, "index.json", urls: urls)
+  end
+
+  def delete(%{assigns: %{user: _}, body_params: %{urls: urls}} = conn, _) do
+    MediaProxy.remove_from_banned_urls(urls)
+    render(conn, "index.json", urls: urls)
+  end
+
+  def purge(%{assigns: %{user: _}, body_params: %{urls: urls, ban: ban}} = conn, _) do
+    MediaProxy.Invalidation.purge(urls)
+
+    if ban do
+      MediaProxy.put_in_banned_urls(urls)
+    end
+
+    render(conn, "index.json", urls: urls)
+  end
+end

lib/pleroma/web/admin_api/views/account_view.ex

@@ -76,7 +76,8 @@ def render("show.json", %{user: user}) do
       "local" => user.local,
       "roles" => User.roles(user),
       "tags" => user.tags || [],
-      "confirmation_pending" => user.confirmation_pending
+      "confirmation_pending" => user.confirmation_pending,
+      "url" => user.uri || user.ap_id
     }
   end
 

lib/pleroma/web/admin_api/views/config_view.ex

@@ -5,23 +5,20 @@
 defmodule Pleroma.Web.AdminAPI.ConfigView do
   use Pleroma.Web, :view
 
-  def render("index.json", %{configs: configs} = params) do
+  alias Pleroma.ConfigDB
-    map = %{
-      configs: render_many(configs, __MODULE__, "show.json", as: :config)
-    }
 
-    if params[:need_reboot] do
+  def render("index.json", %{configs: configs} = params) do
-      Map.put(map, :need_reboot, true)
+    %{
-    else
+      configs: render_many(configs, __MODULE__, "show.json", as: :config),
-      map
+      need_reboot: params[:need_reboot]
-    end
+    }
   end
 
   def render("show.json", %{config: config}) do
     map = %{
-      key: config.key,
+      key: ConfigDB.to_json_types(config.key),
-      group: config.group,
+      group: ConfigDB.to_json_types(config.group),
-      value: Pleroma.ConfigDB.from_binary_with_convert(config.value)
+      value: ConfigDB.to_json_types(config.value)
     }
 
     if config.db != [] do

lib/pleroma/web/admin_api/views/media_proxy_cache_view.ex

@@ -0,0 +1,11 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.AdminAPI.MediaProxyCacheView do
+  use Pleroma.Web, :view
+
+  def render("index.json", %{urls: urls}) do
+    %{urls: urls}
+  end
+end

lib/pleroma/web/api_spec/helpers.ex

@@ -39,6 +39,12 @@ def pagination_params do
         :string,
         "Return the newest items newer than this ID"
       ),
+      Operation.parameter(
+        :offset,
+        :query,
+        %Schema{type: :integer, default: 0},
+        "Return items past this number of items"
+      ),
       Operation.parameter(
         :limit,
         :query,

lib/pleroma/web/api_spec/operations/account_operation.ex

@@ -102,6 +102,7 @@ def show_operation do
       parameters: [%Reference{"$ref": "#/components/parameters/accountIdOrNickname"}],
       responses: %{
         200 => Operation.response("Account", "application/json", Account),
+        401 => Operation.response("Error", "application/json", ApiError),
         404 => Operation.response("Error", "application/json", ApiError)
       }
     }
@@ -142,6 +143,7 @@ def statuses_operation do
         ] ++ pagination_params(),
       responses: %{
         200 => Operation.response("Statuses", "application/json", array_of_statuses()),
+        401 => Operation.response("Error", "application/json", ApiError),
         404 => Operation.response("Error", "application/json", ApiError)
       }
     }

lib/pleroma/web/api_spec/operations/admin/media_proxy_cache_operation.ex

@@ -0,0 +1,109 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.Admin.MediaProxyCacheOperation do
+  alias OpenApiSpex.Operation
+  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Schemas.ApiError
+
+  import Pleroma.Web.ApiSpec.Helpers
+
+  def open_api_operation(action) do
+    operation = String.to_existing_atom("#{action}_operation")
+    apply(__MODULE__, operation, [])
+  end
+
+  def index_operation do
+    %Operation{
+      tags: ["Admin", "MediaProxyCache"],
+      summary: "Fetch a paginated list of all banned MediaProxy URLs in Cachex",
+      operationId: "AdminAPI.MediaProxyCacheController.index",
+      security: [%{"oAuth" => ["read:media_proxy_caches"]}],
+      parameters: [
+        Operation.parameter(
+          :page,
+          :query,
+          %Schema{type: :integer, default: 1},
+          "Page"
+        ),
+        Operation.parameter(
+          :page_size,
+          :query,
+          %Schema{type: :integer, default: 50},
+          "Number of statuses to return"
+        )
+      ],
+      responses: %{
+        200 => success_response()
+      }
+    }
+  end
+
+  def delete_operation do
+    %Operation{
+      tags: ["Admin", "MediaProxyCache"],
+      summary: "Remove a banned MediaProxy URL from Cachex",
+      operationId: "AdminAPI.MediaProxyCacheController.delete",
+      security: [%{"oAuth" => ["write:media_proxy_caches"]}],
+      requestBody:
+        request_body(
+          "Parameters",
+          %Schema{
+            type: :object,
+            required: [:urls],
+            properties: %{
+              urls: %Schema{type: :array, items: %Schema{type: :string, format: :uri}}
+            }
+          },
+          required: true
+        ),
+      responses: %{
+        200 => success_response(),
+        400 => Operation.response("Error", "application/json", ApiError)
+      }
+    }
+  end
+
+  def purge_operation do
+    %Operation{
+      tags: ["Admin", "MediaProxyCache"],
+      summary: "Purge and optionally ban a MediaProxy URL",
+      operationId: "AdminAPI.MediaProxyCacheController.purge",
+      security: [%{"oAuth" => ["write:media_proxy_caches"]}],
+      requestBody:
+        request_body(
+          "Parameters",
+          %Schema{
+            type: :object,
+            required: [:urls],
+            properties: %{
+              urls: %Schema{type: :array, items: %Schema{type: :string, format: :uri}},
+              ban: %Schema{type: :boolean, default: true}
+            }
+          },
+          required: true
+        ),
+      responses: %{
+        200 => success_response(),
+        400 => Operation.response("Error", "application/json", ApiError)
+      }
+    }
+  end
+
+  defp success_response do
+    Operation.response("Array of banned MediaProxy URLs in Cachex", "application/json", %Schema{
+      type: :object,
+      properties: %{
+        urls: %Schema{
+          type: :array,
+          items: %Schema{
+            type: :string,
+            format: :uri,
+            description: "MediaProxy URLs"
+          }
+        }
+      }
+    })
+  end
+end

lib/pleroma/web/api_spec/operations/chat_operation.ex

@@ -0,0 +1,355 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.ChatOperation do
+  alias OpenApiSpex.Operation
+  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Schemas.ApiError
+  alias Pleroma.Web.ApiSpec.Schemas.Chat
+  alias Pleroma.Web.ApiSpec.Schemas.ChatMessage
+
+  import Pleroma.Web.ApiSpec.Helpers
+
+  @spec open_api_operation(atom) :: Operation.t()
+  def open_api_operation(action) do
+    operation = String.to_existing_atom("#{action}_operation")
+    apply(__MODULE__, operation, [])
+  end
+
+  def mark_as_read_operation do
+    %Operation{
+      tags: ["chat"],
+      summary: "Mark all messages in the chat as read",
+      operationId: "ChatController.mark_as_read",
+      parameters: [Operation.parameter(:id, :path, :string, "The ID of the Chat")],
+      requestBody: request_body("Parameters", mark_as_read()),
+      responses: %{
+        200 =>
+          Operation.response(
+            "The updated chat",
+            "application/json",
+            Chat
+          )
+      },
+      security: [
+        %{
+          "oAuth" => ["write:chats"]
+        }
+      ]
+    }
+  end
+
+  def mark_message_as_read_operation do
+    %Operation{
+      tags: ["chat"],
+      summary: "Mark one message in the chat as read",
+      operationId: "ChatController.mark_message_as_read",
+      parameters: [
+        Operation.parameter(:id, :path, :string, "The ID of the Chat"),
+        Operation.parameter(:message_id, :path, :string, "The ID of the message")
+      ],
+      responses: %{
+        200 =>
+          Operation.response(
+            "The read ChatMessage",
+            "application/json",
+            ChatMessage
+          )
+      },
+      security: [
+        %{
+          "oAuth" => ["write:chats"]
+        }
+      ]
+    }
+  end
+
+  def show_operation do
+    %Operation{
+      tags: ["chat"],
+      summary: "Create a chat",
+      operationId: "ChatController.show",
+      parameters: [
+        Operation.parameter(
+          :id,
+          :path,
+          :string,
+          "The id of the chat",
+          required: true,
+          example: "1234"
+        )
+      ],
+      responses: %{
+        200 =>
+          Operation.response(
+            "The existing chat",
+            "application/json",
+            Chat
+          )
+      },
+      security: [
+        %{
+          "oAuth" => ["read"]
+        }
+      ]
+    }
+  end
+
+  def create_operation do
+    %Operation{
+      tags: ["chat"],
+      summary: "Create a chat",
+      operationId: "ChatController.create",
+      parameters: [
+        Operation.parameter(
+          :id,
+          :path,
+          :string,
+          "The account id of the recipient of this chat",
+          required: true,
+          example: "someflakeid"
+        )
+      ],
+      responses: %{
+        200 =>
+          Operation.response(
+            "The created or existing chat",
+            "application/json",
+            Chat
+          )
+      },
+      security: [
+        %{
+          "oAuth" => ["write:chats"]
+        }
+      ]
+    }
+  end
+
+  def index_operation do
+    %Operation{
+      tags: ["chat"],
+      summary: "Get a list of chats that you participated in",
+      operationId: "ChatController.index",
+      parameters: pagination_params(),
+      responses: %{
+        200 => Operation.response("The chats of the user", "application/json", chats_response())
+      },
+      security: [
+        %{
+          "oAuth" => ["read:chats"]
+        }
+      ]
+    }
+  end
+
+  def messages_operation do
+    %Operation{
+      tags: ["chat"],
+      summary: "Get the most recent messages of the chat",
+      operationId: "ChatController.messages",
+      parameters:
+        [Operation.parameter(:id, :path, :string, "The ID of the Chat")] ++
+          pagination_params(),
+      responses: %{
+        200 =>
+          Operation.response(
+            "The messages in the chat",
+            "application/json",
+            chat_messages_response()
+          )
+      },
+      security: [
+        %{
+          "oAuth" => ["read:chats"]
+        }
+      ]
+    }
+  end
+
+  def post_chat_message_operation do
+    %Operation{
+      tags: ["chat"],
+      summary: "Post a message to the chat",
+      operationId: "ChatController.post_chat_message",
+      parameters: [
+        Operation.parameter(:id, :path, :string, "The ID of the Chat")
+      ],
+      requestBody: request_body("Parameters", chat_message_create()),
+      responses: %{
+        200 =>
+          Operation.response(
+            "The newly created ChatMessage",
+            "application/json",
+            ChatMessage
+          ),
+        400 => Operation.response("Bad Request", "application/json", ApiError)
+      },
+      security: [
+        %{
+          "oAuth" => ["write:chats"]
+        }
+      ]
+    }
+  end
+
+  def delete_message_operation do
+    %Operation{
+      tags: ["chat"],
+      summary: "delete_message",
+      operationId: "ChatController.delete_message",
+      parameters: [
+        Operation.parameter(:id, :path, :string, "The ID of the Chat"),
+        Operation.parameter(:message_id, :path, :string, "The ID of the message")
+      ],
+      responses: %{
+        200 =>
+          Operation.response(
+            "The deleted ChatMessage",
+            "application/json",
+            ChatMessage
+          )
+      },
+      security: [
+        %{
+          "oAuth" => ["write:chats"]
+        }
+      ]
+    }
+  end
+
+  def chats_response do
+    %Schema{
+      title: "ChatsResponse",
+      description: "Response schema for multiple Chats",
+      type: :array,
+      items: Chat,
+      example: [
+        %{
+          "account" => %{
+            "pleroma" => %{
+              "is_admin" => false,
+              "confirmation_pending" => false,
+              "hide_followers_count" => false,
+              "is_moderator" => false,
+              "hide_favorites" => true,
+              "ap_id" => "https://dontbulling.me/users/lain",
+              "hide_follows_count" => false,
+              "hide_follows" => false,
+              "background_image" => nil,
+              "skip_thread_containment" => false,
+              "hide_followers" => false,
+              "relationship" => %{},
+              "tags" => []
+            },
+            "avatar" =>
+              "https://dontbulling.me/media/065a4dd3c6740dab13ff9c71ec7d240bb9f8be9205c9e7467fb2202117da1e32.jpg",
+            "following_count" => 0,
+            "header_static" => "https://originalpatchou.li/images/banner.png",
+            "source" => %{
+              "sensitive" => false,
+              "note" => "lain",
+              "pleroma" => %{
+                "discoverable" => false,
+                "actor_type" => "Person"
+              },
+              "fields" => []
+            },
+            "statuses_count" => 1,
+            "locked" => false,
+            "created_at" => "2020-04-16T13:40:15.000Z",
+            "display_name" => "lain",
+            "fields" => [],
+            "acct" => "lain@dontbulling.me",
+            "id" => "9u6Qw6TAZANpqokMkK",
+            "emojis" => [],
+            "avatar_static" =>
+              "https://dontbulling.me/media/065a4dd3c6740dab13ff9c71ec7d240bb9f8be9205c9e7467fb2202117da1e32.jpg",
+            "username" => "lain",
+            "followers_count" => 0,
+            "header" => "https://originalpatchou.li/images/banner.png",
+            "bot" => false,
+            "note" => "lain",
+            "url" => "https://dontbulling.me/users/lain"
+          },
+          "id" => "1",
+          "unread" => 2
+        }
+      ]
+    }
+  end
+
+  def chat_messages_response do
+    %Schema{
+      title: "ChatMessagesResponse",
+      description: "Response schema for multiple ChatMessages",
+      type: :array,
+      items: ChatMessage,
+      example: [
+        %{
+          "emojis" => [
+            %{
+              "static_url" => "https://dontbulling.me/emoji/Firefox.gif",
+              "visible_in_picker" => false,
+              "shortcode" => "firefox",
+              "url" => "https://dontbulling.me/emoji/Firefox.gif"
+            }
+          ],
+          "created_at" => "2020-04-21T15:11:46.000Z",
+          "content" => "Check this out :firefox:",
+          "id" => "13",
+          "chat_id" => "1",
+          "actor_id" => "someflakeid",
+          "unread" => false
+        },
+        %{
+          "actor_id" => "someflakeid",
+          "content" => "Whats' up?",
+          "id" => "12",
+          "chat_id" => "1",
+          "emojis" => [],
+          "created_at" => "2020-04-21T15:06:45.000Z",
+          "unread" => false
+        }
+      ]
+    }
+  end
+
+  def chat_message_create do
+    %Schema{
+      title: "ChatMessageCreateRequest",
+      description: "POST body for creating an chat message",
+      type: :object,
+      properties: %{
+        content: %Schema{
+          type: :string,
+          description: "The content of your message. Optional if media_id is present"
+        },
+        media_id: %Schema{type: :string, description: "The id of an upload"}
+      },
+      example: %{
+        "content" => "Hey wanna buy feet pics?",
+        "media_id" => "134234"
+      }
+    }
+  end
+
+  def mark_as_read do
+    %Schema{
+      title: "MarkAsReadRequest",
+      description: "POST body for marking a number of chat messages as read",
+      type: :object,
+      required: [:last_read_id],
+      properties: %{
+        last_read_id: %Schema{
+          type: :string,
+          description: "The content of your message."
+        }
+      },
+      example: %{
+        "last_read_id" => "abcdef12456"
+      }
+    }
+  end
+end

lib/pleroma/web/api_spec/operations/notification_operation.ex

@@ -163,6 +163,13 @@ def notification do
           description:
             "Status that was the object of the notification, e.g. in mentions, reblogs, favourites, or polls.",
           nullable: true
+        },
+        pleroma: %Schema{
+          type: :object,
+          properties: %{
+            is_seen: %Schema{type: :boolean},
+            is_muted: %Schema{type: :boolean}
+          }
         }
       },
       example: %{
@@ -170,7 +177,8 @@ def notification do
         "type" => "mention",
         "created_at" => "2019-11-23T07:49:02.064Z",
         "account" => Account.schema().example,
-        "status" => Status.schema().example
+        "status" => Status.schema().example,
+        "pleroma" => %{"is_seen" => false, "is_muted" => false}
       }
     }
   end
@@ -183,8 +191,8 @@ defp notification_type do
         "favourite",
         "reblog",
         "mention",
-        "poll",
         "pleroma:emoji_reaction",
+        "pleroma:chat_mention",
         "move",
         "follow_request"
       ],

lib/pleroma/web/api_spec/operations/pleroma_emoji_pack_operation.ex

@@ -33,6 +33,20 @@ def index_operation do
       tags: ["Emoji Packs"],
       summary: "Lists local custom emoji packs",
       operationId: "PleromaAPI.EmojiPackController.index",
+      parameters: [
+        Operation.parameter(
+          :page,
+          :query,
+          %Schema{type: :integer, default: 1},
+          "Page"
+        ),
+        Operation.parameter(
+          :page_size,
+          :query,
+          %Schema{type: :integer, default: 50},
+          "Number of emoji packs to return"
+        )
+      ],
       responses: %{
         200 => emoji_packs_response()
       }
@@ -44,7 +58,21 @@ def show_operation do
       tags: ["Emoji Packs"],
       summary: "Show emoji pack",
       operationId: "PleromaAPI.EmojiPackController.show",
-      parameters: [name_param()],
+      parameters: [
+        name_param(),
+        Operation.parameter(
+          :page,
+          :query,
+          %Schema{type: :integer, default: 1},
+          "Page"
+        ),
+        Operation.parameter(
+          :page_size,
+          :query,
+          %Schema{type: :integer, default: 30},
+          "Number of emoji to return"
+        )
+      ],
       responses: %{
         200 => Operation.response("Emoji Pack", "application/json", emoji_pack()),
         400 => Operation.response("Bad Request", "application/json", ApiError),

lib/pleroma/web/api_spec/operations/status_operation.ex

@@ -333,7 +333,8 @@ def favourites_operation do
     %Operation{
       tags: ["Statuses"],
       summary: "Favourited statuses",
-      description: "Statuses the user has favourited",
+      description:
+        "Statuses the user has favourited. Please note that you have to use the link headers to paginate this. You can not build the query parameters yourself.",
       operationId: "StatusController.favourites",
       parameters: pagination_params(),
       security: [%{"oAuth" => ["read:favourites"]}],

lib/pleroma/web/api_spec/operations/subscription_operation.ex

@@ -141,6 +141,11 @@ defp create_request do
                   allOf: [BooleanLike],
                   nullable: true,
                   description: "Receive poll notifications?"
+                },
+                "pleroma:chat_mention": %Schema{
+                  allOf: [BooleanLike],
+                  nullable: true,
+                  description: "Receive chat notifications?"
                 }
               }
             }

lib/pleroma/web/api_spec/schemas/chat.ex

@@ -0,0 +1,75 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.Schemas.Chat do
+  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Schemas.ChatMessage
+
+  require OpenApiSpex
+
+  OpenApiSpex.schema(%{
+    title: "Chat",
+    description: "Response schema for a Chat",
+    type: :object,
+    properties: %{
+      id: %Schema{type: :string},
+      account: %Schema{type: :object},
+      unread: %Schema{type: :integer},
+      last_message: ChatMessage,
+      updated_at: %Schema{type: :string, format: :"date-time"}
+    },
+    example: %{
+      "account" => %{
+        "pleroma" => %{
+          "is_admin" => false,
+          "confirmation_pending" => false,
+          "hide_followers_count" => false,
+          "is_moderator" => false,
+          "hide_favorites" => true,
+          "ap_id" => "https://dontbulling.me/users/lain",
+          "hide_follows_count" => false,
+          "hide_follows" => false,
+          "background_image" => nil,
+          "skip_thread_containment" => false,
+          "hide_followers" => false,
+          "relationship" => %{},
+          "tags" => []
+        },
+        "avatar" =>
+          "https://dontbulling.me/media/065a4dd3c6740dab13ff9c71ec7d240bb9f8be9205c9e7467fb2202117da1e32.jpg",
+        "following_count" => 0,
+        "header_static" => "https://originalpatchou.li/images/banner.png",
+        "source" => %{
+          "sensitive" => false,
+          "note" => "lain",
+          "pleroma" => %{
+            "discoverable" => false,
+            "actor_type" => "Person"
+          },
+          "fields" => []
+        },
+        "statuses_count" => 1,
+        "locked" => false,
+        "created_at" => "2020-04-16T13:40:15.000Z",
+        "display_name" => "lain",
+        "fields" => [],
+        "acct" => "lain@dontbulling.me",
+        "id" => "9u6Qw6TAZANpqokMkK",
+        "emojis" => [],
+        "avatar_static" =>
+          "https://dontbulling.me/media/065a4dd3c6740dab13ff9c71ec7d240bb9f8be9205c9e7467fb2202117da1e32.jpg",
+        "username" => "lain",
+        "followers_count" => 0,
+        "header" => "https://originalpatchou.li/images/banner.png",
+        "bot" => false,
+        "note" => "lain",
+        "url" => "https://dontbulling.me/users/lain"
+      },
+      "id" => "1",
+      "unread" => 2,
+      "last_message" => ChatMessage.schema().example(),
+      "updated_at" => "2020-04-21T15:06:45.000Z"
+    }
+  })
+end