Merge remote-tracking branch 'upstream/develop' into spc2

Fix Logger.warn deprecation error on OTP25

See merge request pleroma/pleroma!4135

.gitlab-ci.yml

@@ -1,8 +1,8 @@
-image: git.pleroma.social:5050/pleroma/pleroma/ci-base
+image: git.pleroma.social:5050/pleroma/pleroma/ci-base:elixir-1.13.4-otp-24
 
 variables: &global_variables
   # Only used for the release
-  ELIXIR_VER: 1.12.3
+  ELIXIR_VER: 1.13.4
   POSTGRES_DB: pleroma_test
   POSTGRES_USER: postgres
   POSTGRES_PASSWORD: postgres
@@ -72,7 +72,7 @@ check-changelog:
   tags:
     - amd64
 
-build-1.12.3:
+build-1.13.4:
   extends:
   - .build_changes_policy
   - .using-ci-base
@@ -85,7 +85,7 @@ build-1.15.7-otp-25:
   - .build_changes_policy
   - .using-ci-base
   stage: build
-  image: git.pleroma.social:5050/pleroma/pleroma/ci-base:elixir-1.15
+  image: git.pleroma.social:5050/pleroma/pleroma/ci-base:elixir-1.15-otp25
   allow_failure: true
   script:
   - mix compile --force

Dockerfile

@@ -1,7 +1,7 @@
 ARG ELIXIR_IMG=hexpm/elixir
-ARG ELIXIR_VER=1.12.3
+ARG ELIXIR_VER=1.13.4
-ARG ERLANG_VER=24.2.1
+ARG ERLANG_VER=24.3.4.15
-ARG ALPINE_VER=3.17.0
+ARG ALPINE_VER=3.17.5
 
 FROM ${ELIXIR_IMG}:${ELIXIR_VER}-erlang-${ERLANG_VER}-alpine-${ALPINE_VER} as build
 

changelog.d/3904.security

@@ -0,0 +1 @@
+HTTP Security: By default, don't allow unsafe-eval. The setting needs to be changed to allow Flash emulation.

changelog.d/add-ipfs-upload.add

@@ -0,0 +1 @@
+Uploader: Add support for uploading attachments using IPFS

changelog.d/add-nsfw-mrf.add

@@ -0,0 +1 @@
+Add NSFW-detecting MRF

changelog.d/add-rbl-mrf.add

@@ -0,0 +1 @@
+Add DNSRBL MRF

changelog.d/akkoma-prune-options.add

@@ -0,0 +1 @@
+Add options to the mix prune_objects task

changelog.d/anti-mentionspam-mrf.add

@@ -0,0 +1 @@
+Add Anti-mention Spam MRF backported from Rebased

changelog.d/auth-fetch-exception.add

@@ -0,0 +1 @@
+HTTPSignaturePlug: Add :authorized_fetch_mode_exceptions configuration

changelog.d/authorized-fetch-rejections.add

@@ -0,0 +1 @@
+Add an option to reject certain domains when authorized fetch is enabled.

changelog.d/bandit_update_1.5.2.change

@@ -0,0 +1 @@
+Update Bandit to 1.5.2

changelog.d/bump-elixir.change

@@ -0,0 +1 @@
+Elixir 1.13 is the minimum required version.

changelog.d/familiar-followers.add

@@ -0,0 +1 @@
+Implement `/api/v1/accounts/familiar_followers`

changelog.d/fix-webfinger-spoofing.security

@@ -0,0 +1 @@
+Fix webfinger spoofing.

changelog.d/include-scrobbles-with-account.add

@@ -0,0 +1 @@
+Includes scrobble when available in the account field with statuses

changelog.d/instance-rules.add

@@ -0,0 +1 @@
+Add instance rules

changelog.d/logger-metadata.add

@@ -0,0 +1 @@
+Logger metadata is now attached to some logs to help with troubleshooting and analysis

changelog.d/mark-read.fix

@@ -0,0 +1 @@
+The query for marking notifications as read has been simplified

changelog.d/mediaproxy-http.fix

@@ -0,0 +1 @@
+Ensure MediaProxy HTTP requests obey all the defined connection settings

changelog.d/missing-fks.add

@@ -0,0 +1 @@
+Add missing indexes on foreign key relationships

changelog.d/missing-mrfs.add

@@ -0,0 +1 @@
+Startup detection for configured MRF modules that are missing or incorrectly defined

changelog.d/mix-indexer.add

@@ -0,0 +1 @@
+Permit passing --chunk and --step values to the Pleroma.Search.Indexer Mix task

changelog.d/mrf-nsfw-otp25.skip

@@ -0,0 +1 @@
+noop

changelog.d/oban-queues.change

@@ -0,0 +1 @@
+Oban queues have refactored to simplify the queue design

changelog.d/pools.change

@@ -0,0 +1 @@
+HTTP connection pool adjustments

changelog.d/prometheus-docs.change

@@ -0,0 +1 @@
+Update the documentation for configuring Prometheus metrics.

changelog.d/promexdocs.add

@@ -0,0 +1 @@
+PromEx documentation

changelog.d/qdrant_search.add

@@ -0,0 +1 @@
+Add Qdrant/OpenAI embedding search

changelog.d/realpath-over-readlink.fix

@@ -0,0 +1 @@
+pleroma_ctl: Use realpath(1) instead of readlink(1)

changelog.d/reply-to-deleted.change

@@ -0,0 +1 @@
+A 422 error is returned when attempting to reply to a deleted status

changelog.d/richmediattl.fix

@@ -0,0 +1 @@
+Parsing of RichMedia TTLs for Amazon URLs when query parameters are nil

changelog.d/search-healthcheck.add

@@ -0,0 +1 @@
+Monitoring of search backend health to control the processing of jobs in the search indexing Oban queue

changelog.d/show-reposter-replies.add

@@ -0,0 +1 @@
+Display reposted replies with exclude_replies: true

changelog.d/status-notification-type.add

@@ -0,0 +1 @@
+Add "status" notification type

changelog.d/support-honk-image-summaries.add

@@ -0,0 +1 @@
+Support honk-style attachment summaries as alt-text.

changelog.d/video-thumbs.fix

@@ -0,0 +1 @@
+Video thumbnails were not being generated due to a negative cache lookup logic error

changelog.d/web_push_filtered.fix

@@ -0,0 +1 @@
+Web Push notifications are no longer generated for muted/blocked threads and users.

changelog.d/webfinger-validation.fix

@@ -0,0 +1 @@
+Fix validate_webfinger when running a different domain for Webfinger

ci/elixir-1.13/Dockerfile

@@ -0,0 +1,8 @@
+FROM elixir:1.13.4-otp-24
+
+# Single RUN statement, otherwise intermediate images are created
+# https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#run
+RUN apt-get update &&\
+	apt-get install -y libmagic-dev cmake libimage-exiftool-perl ffmpeg &&\
+	mix local.hex --force &&\
+	mix local.rebar --force

ci/elixir-1.13/build_and_push.sh

@@ -0,0 +1 @@
+docker buildx build --platform linux/amd64,linux/arm64 -t git.pleroma.social:5050/pleroma/pleroma/ci-base:elixir-1.13.4-otp-24 --push .

ci/elixir-1.15-otp25/build_and_push.sh

@@ -1 +1 @@
-docker buildx build --platform linux/amd64 -t git.pleroma.social:5050/pleroma/pleroma/ci-base:elixir-1.15-otp25 --push .
+docker buildx build --platform linux/amd64,linux/arm64 -t git.pleroma.social:5050/pleroma/pleroma/ci-base:elixir-1.15-otp25 --push .

config/config.exs

@@ -82,6 +82,10 @@
   # region: "us-east-1", # may be required for Amazon AWS
   scheme: "https://"
 
+config :pleroma, Pleroma.Uploaders.IPFS,
+  post_gateway_url: nil,
+  get_gateway_url: nil
+
 config :pleroma, :emoji,
   shortcode_globs: ["/emoji/custom/**/*.png"],
   pack_extensions: [".png", ".gif"],
@@ -188,6 +192,7 @@
   allow_relay: true,
   public: true,
   quarantined_instances: [],
+  rejected_instances: [],
   static_dir: "instance/static/",
   allowed_post_formats: [
     "text/plain",
@@ -406,15 +411,33 @@
   accept: [],
   reject: []
 
+config :pleroma, :mrf_dnsrbl,
+  nameserver: "127.0.0.1",
+  port: 53,
+  zone: "bl.pleroma.com"
+
 # threshold of 7 days
 config :pleroma, :mrf_object_age,
   threshold: 604_800,
   actions: [:delist, :strip_followers]
 
+config :pleroma, :mrf_nsfw_api,
+  url: "http://127.0.0.1:5000/",
+  threshold: 0.7,
+  mark_sensitive: true,
+  unlist: false,
+  reject: false
+
 config :pleroma, :mrf_follow_bot, follower_nickname: nil
 
 config :pleroma, :mrf_inline_quote, template: "<bdi>RT:</bdi> {url}"
 
+config :pleroma, :mrf_force_mention,
+  mention_parent: true,
+  mention_quoted: true
+
+config :pleroma, :mrf_antimentionspam, user_age_limit: 30_000
+
 config :pleroma, :rich_media,
   enabled: true,
   ignore_hosts: [],
@@ -497,7 +520,8 @@
   sts: false,
   sts_max_age: 31_536_000,
   ct_max_age: 2_592_000,
-  referrer_policy: "same-origin"
+  referrer_policy: "same-origin",
+  allow_unsafe_eval: false
 
 config :cors_plug,
   max_age: 86_400,
@@ -559,24 +583,14 @@
   log: false,
   queues: [
     activity_expiration: 10,
-    token_expiration: 5,
-    filter_expiration: 1,
-    backup: 1,
     federator_incoming: 5,
     federator_outgoing: 5,
     ingestion_queue: 50,
     web_push: 50,
-    mailer: 10,
     transmogrifier: 20,
-    scheduled_activities: 10,
-    poll_notifications: 10,
     background: 5,
-    remote_fetcher: 2,
+    search_indexing: [limit: 10, paused: true],
-    attachments_cleanup: 1,
+    slow: 1
-    new_users_digest: 1,
-    mute_expire: 5,
-    search_indexing: 10,
-    rich_media_expiration: 2
   ],
   plugins: [Oban.Plugins.Pruner],
   crontab: [
@@ -814,22 +828,27 @@
 
 config :pleroma, :pools,
   federation: [
-    size: 50,
+    size: 75,
-    max_waiting: 10,
+    max_waiting: 20,
     recv_timeout: 10_000
   ],
   media: [
-    size: 50,
+    size: 75,
+    max_waiting: 20,
+    recv_timeout: 15_000
+  ],
+  rich_media: [
+    size: 25,
     max_waiting: 20,
     recv_timeout: 15_000
   ],
   upload: [
     size: 25,
-    max_waiting: 5,
+    max_waiting: 20,
     recv_timeout: 15_000
   ],
   default: [
-    size: 10,
+    size: 50,
     max_waiting: 2,
     recv_timeout: 5_000
   ]
@@ -843,6 +862,10 @@
     max_connections: 50,
     timeout: 150_000
   ],
+  rich_media: [
+    max_connections: 50,
+    timeout: 150_000
+  ],
   upload: [
     max_connections: 25,
     timeout: 300_000
@@ -888,8 +911,6 @@
   process_chunk_size: 100
 
 config :pleroma, ConcurrentLimiter, [
-  {Pleroma.Web.RichMedia.Helpers, [max_running: 5, max_waiting: 5]},
-  {Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy, [max_running: 5, max_waiting: 5]},
   {Pleroma.Search, [max_running: 30, max_waiting: 50]}
 ]
 
@@ -911,6 +932,19 @@
 
 config :pleroma, Pleroma.Uploaders.Uploader, timeout: 30_000
 
+config :pleroma, Pleroma.Search.QdrantSearch,
+  qdrant_url: "http://127.0.0.1:6333/",
+  qdrant_api_key: "",
+  openai_url: "http://127.0.0.1:11345",
+  # The healthcheck url has to be set to nil when used with the real openai
+  # API, as it doesn't have a healthcheck endpoint.
+  openai_healthcheck_url: "http://127.0.0.1:11345/health",
+  openai_model: "snowflake/snowflake-arctic-embed-xs",
+  openai_api_key: "",
+  qdrant_index_configuration: %{
+    vectors: %{size: 384, distance: "Cosine"}
+  }
+
 # 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

@@ -136,6 +136,31 @@
       }
     ]
   },
+  %{
+    group: :pleroma,
+    key: Pleroma.Uploaders.IPFS,
+    type: :group,
+    description: "IPFS uploader-related settings",
+    children: [
+      %{
+        key: :get_gateway_url,
+        type: :string,
+        description: "GET Gateway URL",
+        suggestions: [
+          "https://ipfs.mydomain.com/{CID}",
+          "https://{CID}.ipfs.mydomain.com/"
+        ]
+      },
+      %{
+        key: :post_gateway_url,
+        type: :string,
+        description: "POST Gateway URL",
+        suggestions: [
+          "http://localhost:5001/"
+        ]
+      }
+    ]
+  },
   %{
     group: :pleroma,
     key: Pleroma.Uploaders.S3,
@@ -749,6 +774,18 @@
           {"*.quarantined.com", "Reason"}
         ]
       },
+      %{
+        key: :rejected_instances,
+        type: {:list, :tuple},
+        key_placeholder: "instance",
+        value_placeholder: "reason",
+        description:
+          "List of ActivityPub instances to reject requests from if authorized_fetch_mode is enabled",
+        suggestions: [
+          {"rejected.com", "Reason"},
+          {"*.rejected.com", "Reason"}
+        ]
+      },
       %{
         key: :static_dir,
         type: :string,
@@ -1791,6 +1828,12 @@
         type: :boolean,
         description: "Require HTTP signatures for AP fetches"
       },
+      %{
+        key: :authorized_fetch_mode_exceptions,
+        type: {:list, :string},
+        description:
+          "List of IPs (CIDR format accepted) to exempt from HTTP Signatures requirement (for example to allow debugging, you shouldn't otherwise need this)"
+      },
       %{
         key: :note_replies_output_limit,
         type: :integer,

config/test.exs

@@ -153,6 +153,12 @@
 config :pleroma, Pleroma.Upload, config_impl: Pleroma.UnstubbedConfigMock
 config :pleroma, Pleroma.ScheduledActivity, config_impl: Pleroma.UnstubbedConfigMock
 config :pleroma, Pleroma.Web.RichMedia.Helpers, config_impl: Pleroma.StaticStubbedConfigMock
+config :pleroma, Pleroma.Uploaders.IPFS, config_impl: Pleroma.UnstubbedConfigMock
+config :pleroma, Pleroma.Web.Plugs.HTTPSecurityPlug, config_impl: Pleroma.StaticStubbedConfigMock
+config :pleroma, Pleroma.Web.Plugs.HTTPSignaturePlug, config_impl: Pleroma.StaticStubbedConfigMock
+
+config :pleroma, Pleroma.Web.Plugs.HTTPSignaturePlug,
+  http_signatures_impl: Pleroma.StubbedHTTPSignaturesMock
 
 peer_module =
   if String.to_integer(System.otp_release()) >= 25 do

docs/administration/CLI_tasks/database.md

@@ -21,16 +21,18 @@ Replaces embedded objects with references to them in the `objects` table. Only n
     mix pleroma.database remove_embedded_objects [option ...]
     ```
 
-
 ### Options
 - `--vacuum` - run `VACUUM FULL` after the embedded objects are replaced with their references
 
 ## Prune old remote posts from the database
 
-This will prune remote posts older than 90 days (configurable with [`config :pleroma, :instance, remote_post_retention_days`](../../configuration/cheatsheet.md#instance)) from the database, they will be refetched from source when accessed.
+This will prune remote posts older than 90 days (configurable with [`config :pleroma, :instance, remote_post_retention_days`](../../configuration/cheatsheet.md#instance)) from the database. Pruned posts may be refetched in some cases.
+
+!!! note
+    The disk space will only be reclaimed after a proper vacuum. By default Postgresql does this for you on a regular basis, but if your instance has been running for a long time and there are many rows deleted, it may be advantageous to use `VACUUM FULL` (e.g. by using the `--vacuum` option).
 
 !!! danger
-    The disk space will only be reclaimed after `VACUUM FULL`. You may run out of disk space during the execution of the task or vacuuming if you don't have about 1/3rds of the database size free.
+    You may run out of disk space during the execution of the task or vacuuming if you don't have about 1/3rds of the database size free. Vacuum causes a substantial increase in I/O traffic, and may lead to a degraded experience while it is running.
 
 === "OTP"
 
@@ -45,7 +47,11 @@ This will prune remote posts older than 90 days (configurable with [`config :ple
     ```
 
 ### Options
-- `--vacuum` - run `VACUUM FULL` after the objects are pruned
+
+- `--keep-threads` - Don't prune posts when they are part of a thread where at least one post has seen local interaction (e.g. one of the posts is a local post, or is favourited by a local user, or has been repeated by a local user...). It also won't delete posts when at least one of the posts in that thread is kept (e.g. because one of the posts has seen recent activity).
+- `--keep-non-public` - Keep non-public posts like DM's and followers-only, even if they are remote.
+- `--prune-orphaned-activities` - Also prune orphaned activities afterwards. Activities are things like Like, Create, Announce, Flag (aka reports). They can significantly help reduce the database size.  Note: this can take a very long time.
+- `--vacuum` - Run `VACUUM FULL` after the objects are pruned. This should not be used on a regular basis, but is useful if your instance has been running for a long time before pruning.
 
 ## Create a conversation for all existing DMs
 
@@ -93,6 +99,9 @@ Can be safely re-run
 
 ## Vacuum the database
 
+!!! note
+    By default Postgresql has an autovacuum deamon running. While the tasks described here can help in some cases, they shouldn't be needed on a regular basis. See [the Postgresql docs on vacuuming](https://www.postgresql.org/docs/current/sql-vacuum.html) for more information on this.
+
 ### Analyze
 
 Running an `analyze` vacuum job can improve performance by updating statistics used by the query planner. **It is safe to cancel this.**

docs/configuration/cheatsheet.md

@@ -41,6 +41,7 @@ To add configuration to your config file, you can copy it from the base config.
 * `allow_relay`: Permits remote instances to subscribe to all public posts of your instance. This may increase the visibility of your instance.
 * `public`: Makes the client API in authenticated mode-only except for user-profiles. Useful for disabling the Local Timeline and The Whole Known Network. Note that there is a dependent setting restricting or allowing unauthenticated access to specific resources, see `restrict_unauthenticated` for more details.
 * `quarantined_instances`: ActivityPub instances where private (DMs, followers-only) activities will not be send.
+* `rejected_instances`: ActivityPub instances to reject requests from if authorized_fetch_mode is enabled.
 * `allowed_post_formats`: MIME-type list of formats allowed to be posted (transformed into HTML).
 * `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.
@@ -284,6 +285,7 @@ Notes:
 * `deny_follow_blocked`: Whether to disallow following an account that has blocked the user in question
 * `sign_object_fetches`: Sign object fetches with HTTP signatures
 * `authorized_fetch_mode`: Require HTTP signatures for AP fetches
+* `authorized_fetch_mode_exceptions`: List of IPs (CIDR format accepted) to exempt from HTTP Signatures requirement (for example to allow debugging, you shouldn't otherwise need this)
 
 ## Pleroma.User
 
@@ -472,6 +474,7 @@ This will make Pleroma listen on `127.0.0.1` port `8080` and generate urls start
 * ``ct_max_age``: The maximum age for the `Expect-CT` header if sent.
 * ``referrer_policy``: The referrer policy to use, either `"same-origin"` or `"no-referrer"`.
 * ``report_uri``: Adds the specified url to `report-uri` and `report-to` group in CSP header.
+* `allow_unsafe_eval`: Adds `wasm-unsafe-eval` to the CSP header. Needed for some non-essential frontend features like Flash emulation.
 
 ### Pleroma.Web.Plugs.RemoteIp
 
@@ -661,6 +664,19 @@ config :ex_aws, :s3,
   host: "s3.eu-central-1.amazonaws.com"
 ```
 
+#### Pleroma.Uploaders.IPFS
+
+* `post_gateway_url`: URL with port of POST Gateway (unauthenticated)
+* `get_gateway_url`: URL of public GET Gateway
+
+Example:
+
+```elixir
+config :pleroma, Pleroma.Uploaders.IPFS,
+  post_gateway_url: "http://localhost:5001",
+  get_gateway_url: "http://{CID}.ipfs.mydomain.com"
+```
+
 ### Upload filters
 
 #### Pleroma.Upload.Filter.AnonymizeFilename

docs/configuration/search.md

@@ -10,6 +10,30 @@ To use built-in search that has no external dependencies, set the search module
 
 While it has no external dependencies, it has problems with performance and relevancy.
 
+## QdrantSearch
+
+This uses the vector search engine [Qdrant](https://qdrant.tech) to search the posts in a vector space. This needs a way to generate embeddings and uses the [OpenAI API](https://platform.openai.com/docs/guides/embeddings/what-are-embeddings). This is implemented by several project besides OpenAI itself, including the python-based fastembed-server found in `supplemental/search/fastembed-api`.
+
+The default settings will support a setup where both the fastembed server and Qdrant run on the same system as pleroma. To use it, set the search provider and run the fastembed server, see the README in `supplemental/search/fastembed-api`:
+
+> config :pleroma, Pleroma.Search, module: Pleroma.Search.QdrantSearch
+
+Then, start the Qdrant server, see [here](https://qdrant.tech/documentation/quick-start/) for instructions.
+
+You will also need to create the Qdrant index once by running `mix pleroma.search.indexer create_index`. Running `mix pleroma.search.indexer index` will retroactively index the last 100_000 activities.
+
+### Indexing and model options
+
+To see the available configuration options, check out the QdrantSearch section in `config/config.exs`.
+
+The default indexing option work for the default model (`snowflake-arctic-embed-xs`). To optimize for a low memory footprint, adjust the index configuration as described in the [Qdrant docs](https://qdrant.tech/documentation/guides/optimize/). See also [this blog post](https://qdrant.tech/articles/memory-consumption/) that goes into detail.
+
+Different embedding models will need different vector size settings. You can see a list of the models supported by the fastembed server [here](https://qdrant.github.io/fastembed/examples/Supported_Models), including their vector dimensions. These vector dimensions need to be set in the `qdrant_index_configuration`. 
+
+E.g, If you want to use `sentence-transformers/all-MiniLM-L6-v2` as a model, you will not need to adjust things, because it and `snowflake-arctic-embed-xs` are both 384 dimensional models. If you want to use `snowflake/snowflake-arctic-embed-l`, you will need to adjust the `size` parameter in the `qdrant_index_configuration` to 1024, as it has a dimension of 1024.
+
+When using a different model, you will need do drop the index and recreate it (`mix pleroma.search.indexer drop_index` and `mix pleroma.search.indexer create_index`), as the different embeddings are not compatible with each other.
+
 ## Meilisearch
 
 Note that it's quite a bit more memory hungry than PostgreSQL (around 4-5G for ~1.2 million

docs/development/API/admin_api.md

@@ -1751,3 +1751,53 @@ Note that this differs from the Mastodon API variant: Mastodon API only returns
 ```json
 {}
 ```
+
+
+## `GET /api/v1/pleroma/admin/rules`
+
+### List rules
+
+- Response: JSON, list of rules
+
+```json
+[
+  {
+    "id": "1",
+    "priority": 1,
+    "text": "There are no rules",
+    "hint": null
+  }
+]
+```
+
+## `POST /api/v1/pleroma/admin/rules`
+
+### Create a rule
+
+- Params:
+  - `text`: string, required, rule content
+  - `hint`: string, optional, rule description
+  - `priority`: integer, optional, rule ordering priority
+
+- Response: JSON, a single rule
+
+## `PATCH /api/v1/pleroma/admin/rules/:id`
+
+### Update a rule
+
+- Params:
+  - `text`: string, optional, rule content
+  - `hint`: string, optional, rule description
+  - `priority`: integer, optional, rule ordering priority
+
+- Response: JSON, a single rule
+
+## `DELETE /api/v1/pleroma/admin/rules/:id`
+
+### Delete a rule
+
+- Response: JSON, empty object
+
+```json
+{}
+```

docs/development/API/pleroma_api.md

@@ -295,9 +295,7 @@ See [Admin-API](admin_api.md)
         "id": "9umDrYheeY451cQnEe",
         "name": "Read later",
         "emoji": "🕓",
-        "source": {
+        "emoji_url": null
-          "emoji": "🕓"
-        }
     }
 ]
 ```

docs/development/API/prometheus.md

@@ -1,44 +1,47 @@
-# Prometheus Metrics
+# Prometheus / OpenTelemetry Metrics
 
-Pleroma includes support for exporting metrics via the [prometheus_ex](https://github.com/deadtrickster/prometheus.ex) library.
+Pleroma includes support for exporting metrics via the [prom_ex](https://github.com/akoutmos/prom_ex) library.
+The metrics are exposed by a dedicated webserver/port to improve privacy and security.
 
 Config example:
 
 ```
-config :prometheus, Pleroma.Web.Endpoint.MetricsExporter,
+config :pleroma, Pleroma.PromEx,
-  enabled: true,
+  disabled: false,
-  auth: {:basic, "myusername", "mypassword"},
+  manual_metrics_start_delay: :no_delay,
-  ip_whitelist: ["127.0.0.1"],
+  drop_metrics_groups: [],
-  path: "/api/pleroma/app_metrics",
+  grafana: [
-  format: :text
+    host: System.get_env("GRAFANA_HOST", "http://localhost:3000"),
-```
+    auth_token: System.get_env("GRAFANA_TOKEN"),
-
+    upload_dashboards_on_start: false,
-* `enabled` (Pleroma extension) enables the endpoint
+    folder_name: "BEAM",
-* `ip_whitelist` (Pleroma extension) could be used to restrict access only to specified IPs
+    annotate_app_lifecycle: true
-* `auth` sets the authentication (`false` for no auth; configurable to HTTP Basic Auth, see [prometheus-plugs](https://github.com/deadtrickster/prometheus-plugs#exporting) documentation)
+  ],
-* `format` sets the output format (`:text` or `:protobuf`)
+  metrics_server: [
-* `path` sets the path to app metrics page 
+    port: 4021,
-
+    path: "/metrics",
-
+    protocol: :http,
-## `/api/pleroma/app_metrics`
+    pool_size: 5,
-
+    cowboy_opts: [],
-### Exports Prometheus application metrics
+    auth_strategy: :none
-
+  ],
-* Method: `GET`
+  datasource: "Prometheus"
-* Authentication: not required by default (see configuration options above)
-* Params: none
-* Response: text
-
-## Grafana
-
-### Config example
-
-The following is a config example to use with [Grafana](https://grafana.com)
 
 ```
-  - job_name: 'beam'
+
-    metrics_path: /api/pleroma/app_metrics
+PromEx supports the ability to automatically publish dashboards to your Grafana server as well as register Annotations. If you do not wish to configure this capability you must generate the dashboard JSON files and import them directly. You can find the mix commands in the upstream [documentation](https://hexdocs.pm/prom_ex/Mix.Tasks.PromEx.Dashboard.Export.html). You can find the list of modules enabled in Pleroma for which you should generate dashboards for by examining the contents of the `lib/pleroma/prom_ex.ex` module.
-    scheme: https
+
+## prometheus.yml
+
+The following is a bare minimum config example to use with [Prometheus](https://prometheus.io) or Prometheus-compatible software like [VictoriaMetrics](https://victoriametrics.com).
+
+```
+global:
+  scrape_interval: 15s
+
+scrape_configs:
+  - job_name: 'pleroma'
+    scheme: http
     static_configs:
-    - targets: ['pleroma.soykaf.com']
+    - targets: ['pleroma.soykaf.com:4021']
 ```

docs/installation/debian_based_jp.md

@@ -14,7 +14,7 @@ Note: This article is potentially outdated because at this time we may not have
 
 - PostgreSQL 11.0以上 (Ubuntu16.04では9.5しか提供されていないので，[](https://www.postgresql.org/download/linux/ubuntu/)こちらから新しいバージョンを入手してください)
 - `postgresql-contrib` 11.0以上 (同上)
-- Elixir 1.8 以上 ([Debianのリポジトリからインストールしないこと！！！ ここからインストールすること！](https://elixir-lang.org/install.html#unix-and-unix-like)。または [asdf](https://github.com/asdf-vm/asdf) をpleromaユーザーでインストールしてください)
+- Elixir 1.13 以上 ([Debianのリポジトリからインストールしないこと！！！ ここからインストールすること！](https://elixir-lang.org/install.html#unix-and-unix-like)。または [asdf](https://github.com/asdf-vm/asdf) をpleromaユーザーでインストールしてください)
 - `erlang-dev`
 - `erlang-nox`
 - `git`

docs/installation/generic_dependencies.include

@@ -1,7 +1,7 @@
 ## Required dependencies
 
 * PostgreSQL >=11.0
-* Elixir >=1.11.0 <1.15
+* Elixir >=1.13.0 <1.15
 * Erlang OTP >=22.2.0 (supported: <27)
 * git
 * file / libmagic

installation/nsfw-api.service

@@ -0,0 +1,15 @@
+[Unit]
+Description=NSFW API
+After=docker.service
+Requires=docker.service
+
+[Service]
+TimeoutStartSec=0
+Restart=always
+ExecStartPre=-/usr/bin/docker stop %n
+ExecStartPre=-/usr/bin/docker rm %n
+ExecStartPre=/usr/bin/docker pull eugencepoi/nsfw_api:latest
+ExecStart=/usr/bin/docker run --rm -p 127.0.0.1:5000:5000/tcp --env PORT=5000 --name %n eugencepoi/nsfw_api:latest
+
+[Install]
+WantedBy=multi-user.target

lib/mix/tasks/pleroma/database.ex

@@ -67,43 +67,168 @@ def run(["prune_objects" | args]) do
       OptionParser.parse(
         args,
         strict: [
-          vacuum: :boolean
+          vacuum: :boolean,
+          keep_threads: :boolean,
+          keep_non_public: :boolean,
+          prune_orphaned_activities: :boolean
         ]
       )
 
     start_pleroma()
 
     deadline = Pleroma.Config.get([:instance, :remote_post_retention_days])
+    time_deadline = NaiveDateTime.utc_now() |> NaiveDateTime.add(-(deadline * 86_400))
 
-    Logger.info("Pruning objects older than #{deadline} days")
+    log_message = "Pruning objects older than #{deadline} days"
 
-    time_deadline =
+    log_message =
-      NaiveDateTime.utc_now()
+      if Keyword.get(options, :keep_non_public) do
-      |> NaiveDateTime.add(-(deadline * 86_400))
+        log_message <> ", keeping non public posts"
+      else
+        log_message
+      end
 
-    from(o in Object,
+    log_message =
-      where:
+      if Keyword.get(options, :keep_threads) do
+        log_message <> ", keeping threads intact"
+      else
+        log_message
+      end
+
+    log_message =
+      if Keyword.get(options, :prune_orphaned_activities) do
+        log_message <> ", pruning orphaned activities"
+      else
+        log_message
+      end
+
+    log_message =
+      if Keyword.get(options, :vacuum) do
+        log_message <>
+          ", doing a full vacuum (you shouldn't do this as a recurring maintanance task)"
+      else
+        log_message
+      end
+
+    Logger.info(log_message)
+
+    if Keyword.get(options, :keep_threads) do
+      # We want to delete objects from threads where
+      # 1. the newest post is still old
+      # 2. none of the activities is local
+      # 3. none of the activities is bookmarked
+      # 4. optionally none of the posts is non-public
+      deletable_context =
+        if Keyword.get(options, :keep_non_public) do
+          Pleroma.Activity
+          |> join(:left, [a], b in Pleroma.Bookmark, on: a.id == b.activity_id)
+          |> group_by([a], fragment("? ->> 'context'::text", a.data))
+          |> having(
+            [a],
+            not fragment(
+              # Posts (checked on Create Activity) is non-public
+              "bool_or((not(?->'to' \\? ? OR ?->'cc' \\? ?)) and ? ->> 'type' = 'Create')",
+              a.data,
+              ^Pleroma.Constants.as_public(),
+              a.data,
+              ^Pleroma.Constants.as_public(),
+              a.data
+            )
+          )
+        else
+          Pleroma.Activity
+          |> join(:left, [a], b in Pleroma.Bookmark, on: a.id == b.activity_id)
+          |> group_by([a], fragment("? ->> 'context'::text", a.data))
+        end
+        |> having([a], max(a.updated_at) < ^time_deadline)
+        |> having([a], not fragment("bool_or(?)", a.local))
+        |> having([_, b], fragment("max(?::text) is null", b.id))
+        |> select([a], fragment("? ->> 'context'::text", a.data))
+
+      Pleroma.Object
+      |> where([o], fragment("? ->> 'context'::text", o.data) in subquery(deletable_context))
+    else
+      if Keyword.get(options, :keep_non_public) do
+        Pleroma.Object
+        |> where(
+          [o],
           fragment(
             "?->'to' \\? ? OR ?->'cc' \\? ?",
             o.data,
             ^Pleroma.Constants.as_public(),
             o.data,
             ^Pleroma.Constants.as_public()
-        ),
+          )
-      where: o.inserted_at < ^time_deadline,
+        )
-      where:
+      else
+        Pleroma.Object
+      end
+      |> where([o], o.updated_at < ^time_deadline)
+      |> where(
+        [o],
         fragment("split_part(?->>'actor', '/', 3) != ?", o.data, ^Pleroma.Web.Endpoint.host())
       )
+    end
     |> Repo.delete_all(timeout: :infinity)
 
-    prune_hashtags_query = """
+    if !Keyword.get(options, :keep_threads) do
+      # Without the --keep-threads option, it's possible that bookmarked
+      # objects have been deleted. We remove the corresponding bookmarks.
+      """
+      delete from public.bookmarks
+      where id in (
+        select b.id from public.bookmarks b
+        left join public.activities a on b.activity_id = a.id
+        left join public.objects o on a."data" ->> 'object' = o.data ->> 'id'
+        where o.id is null
+      )
+      """
+      |> Repo.query([], timeout: :infinity)
+    end
+
+    if Keyword.get(options, :prune_orphaned_activities) do
+      # Prune activities who link to a single object
+      """
+      delete from public.activities
+      where id in (
+        select a.id from public.activities a
+        left join public.objects o on a.data ->> 'object' = o.data ->> 'id'
+        left join public.activities a2 on a.data ->> 'object' = a2.data ->> 'id'
+        left join public.users u  on a.data ->> 'object' = u.ap_id
+        where not a.local
+        and jsonb_typeof(a."data" -> 'object') = 'string'
+        and o.id is null
+        and a2.id is null
+        and u.id is null
+      )
+      """
+      |> Repo.query([], timeout: :infinity)
+
+      # Prune activities who link to an array of objects
+      """
+      delete from public.activities
+      where id in (
+        select a.id from public.activities a
+        join json_array_elements_text((a."data" -> 'object')::json) as j on jsonb_typeof(a."data" -> 'object') = 'array'
+        left join public.objects o on j.value = o.data ->> 'id'
+        left join public.activities a2 on j.value = a2.data ->> 'id'
+        left join public.users u  on j.value = u.ap_id
+        group by a.id
+        having max(o.data ->> 'id') is null
+        and max(a2.data ->> 'id') is null
+        and max(u.ap_id) is null
+      )
+      """
+      |> Repo.query([], timeout: :infinity)
+    end
+
+    """
     DELETE FROM hashtags AS ht
     WHERE NOT EXISTS (
       SELECT 1 FROM hashtags_objects hto
       WHERE ht.id = hto.hashtag_id)
     """
-
+    |> Repo.query()
-    Repo.query(prune_hashtags_query)
 
     if Keyword.get(options, :vacuum) do
       Maintenance.vacuum("full")

lib/mix/tasks/pleroma/search/indexer.ex

@@ -0,0 +1,83 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Mix.Tasks.Pleroma.Search.Indexer do
+  import Mix.Pleroma
+  import Ecto.Query
+
+  alias Pleroma.Workers.SearchIndexingWorker
+
+  def run(["create_index"]) do
+    start_pleroma()
+
+    with :ok <- Pleroma.Config.get([Pleroma.Search, :module]).create_index() do
+      IO.puts("Index created")
+    else
+      e -> IO.puts("Could not create index: #{inspect(e)}")
+    end
+  end
+
+  def run(["drop_index"]) do
+    start_pleroma()
+
+    with :ok <- Pleroma.Config.get([Pleroma.Search, :module]).drop_index() do
+      IO.puts("Index dropped")
+    else
+      e -> IO.puts("Could not drop index: #{inspect(e)}")
+    end
+  end
+
+  def run(["index" | options]) do
+    {options, [], []} =
+      OptionParser.parse(
+        options,
+        strict: [
+          chunk: :integer,
+          limit: :integer,
+          step: :integer
+        ]
+      )
+
+    start_pleroma()
+
+    chunk_size = Keyword.get(options, :chunk, 100)
+    limit = Keyword.get(options, :limit, 100_000)
+    per_step = Keyword.get(options, :step, 1000)
+
+    chunks = max(div(limit, per_step), 1)
+
+    1..chunks
+    |> Enum.each(fn step ->
+      q =
+        from(a in Pleroma.Activity,
+          limit: ^per_step,
+          offset: ^per_step * (^step - 1),
+          select: [:id],
+          order_by: [desc: :id]
+        )
+
+      {:ok, ids} =
+        Pleroma.Repo.transaction(fn ->
+          Pleroma.Repo.stream(q, timeout: :infinity)
+          |> Enum.map(fn a ->
+            a.id
+          end)
+        end)
+
+      IO.puts("Got #{length(ids)} activities, adding to indexer")
+
+      ids
+      |> Enum.chunk_every(chunk_size)
+      |> Enum.each(fn chunk ->
+        IO.puts("Adding #{length(chunk)} activities to indexing queue")
+
+        chunk
+        |> Enum.map(fn id ->
+          SearchIndexingWorker.new(%{"op" => "add_to_index", "activity" => id})
+        end)
+        |> Oban.insert_all()
+      end)
+    end)
+  end
+end

lib/pleroma/application.ex

@@ -14,6 +14,7 @@ defmodule Pleroma.Application do
   @name Mix.Project.config()[:name]
   @version Mix.Project.config()[:version]
   @repository Mix.Project.config()[:source_url]
+  @compile_env Mix.env()
 
   def name, do: @name
   def version, do: @version
@@ -51,7 +52,11 @@ def start(_type, _args) do
     Pleroma.HTML.compile_scrubbers()
     Pleroma.Config.Oban.warn()
     Config.DeprecationWarnings.warn()
+
+    if @compile_env != :test do
       Pleroma.Web.Plugs.HTTPSecurityPlug.warn_if_disabled()
+    end
+
     Pleroma.ApplicationRequirements.verify!()
     load_custom_modules()
     Pleroma.Docs.JSON.compile()
@@ -109,7 +114,8 @@ def start(_type, _args) do
         streamer_registry() ++
         background_migrators() ++
         shout_child(shout_enabled?()) ++
-        [Pleroma.Gopher.Server]
+        [Pleroma.Gopher.Server] ++
+        [Pleroma.Search.Healthcheck]
 
     # See http://elixir-lang.org/docs/stable/elixir/Supervisor.html
     # for other strategies and supported options
@@ -162,7 +168,8 @@ defp cachex_children do
         expiration: chat_message_id_idempotency_key_expiration(),
         limit: 500_000
       ),
-      build_cachex("rel_me", limit: 2500)
+      build_cachex("rel_me", limit: 2500),
+      build_cachex("host_meta", default_ttl: :timer.minutes(120), limit: 5000)
     ]
   end
 

lib/pleroma/application_requirements.ex

@@ -28,6 +28,7 @@ def verify! do
     |> check_welcome_message_config!()
     |> check_rum!()
     |> check_repo_pool_size!()
+    |> check_mrfs()
     |> handle_result()
   end
 
@@ -234,4 +235,25 @@ defp check_filter(filter, command_required) do
       true
     end
   end
+
+  defp check_mrfs(:ok) do
+    mrfs = Config.get!([:mrf, :policies])
+
+    missing_mrfs =
+      Enum.reduce(mrfs, [], fn x, acc ->
+        if Code.ensure_compiled(x) do
+          acc
+        else
+          acc ++ [x]
+        end
+      end)
+
+    if Enum.empty?(missing_mrfs) do
+      :ok
+    else
+      {:error, "The following MRF modules are configured but missing: #{inspect(missing_mrfs)}"}
+    end
+  end
+
+  defp check_mrfs(result), do: result
 end

lib/pleroma/constants.ex

@@ -19,7 +19,8 @@ defmodule Pleroma.Constants do
       "context_id",
       "deleted_activity_id",
       "pleroma_internal",
-      "generator"
+      "generator",
+      "rules"
     ]
   )
 

lib/pleroma/helpers/inet_helper.ex

@@ -16,4 +16,15 @@ def parse_address(ip) when is_binary(ip) do
   def parse_address(ip) do
     :inet.parse_address(ip)
   end
+
+  def parse_cidr(proxy) when is_binary(proxy) do
+    proxy =
+      cond do
+        "/" in String.codepoints(proxy) -> proxy
+        InetCidr.v4?(InetCidr.parse_address!(proxy)) -> proxy <> "/32"
+        InetCidr.v6?(InetCidr.parse_address!(proxy)) -> proxy <> "/128"
+      end
+
+    InetCidr.parse_cidr!(proxy, true)
+  end
 end

lib/pleroma/helpers/media_helper.ex

@@ -25,7 +25,7 @@ def missing_dependencies do
   end
 
   def image_resize(url, options) do
-    with {:ok, env} <- HTTP.get(url, [], pool: :media),
+    with {:ok, env} <- HTTP.get(url, [], http_client_opts()),
          {:ok, resized} <-
            Operation.thumbnail_buffer(env.body, options.max_width,
              height: options.max_height,
@@ -45,8 +45,8 @@ def image_resize(url, options) do
   @spec video_framegrab(String.t()) :: {:ok, binary()} | {:error, any()}
   def video_framegrab(url) do
     with executable when is_binary(executable) <- System.find_executable("ffmpeg"),
-         false <- @cachex.exists?(:failed_media_helper_cache, url),
+         {:ok, false} <- @cachex.exists?(:failed_media_helper_cache, url),
-         {:ok, env} <- HTTP.get(url, [], pool: :media),
+         {:ok, env} <- HTTP.get(url, [], http_client_opts()),
          {:ok, pid} <- StringIO.open(env.body) do
       body_stream = IO.binstream(pid, 1)
 
@@ -71,17 +71,19 @@ def video_framegrab(url) do
         end)
 
       case Task.yield(task, 5_000) do
-        nil ->
+        {:ok, result} ->
+          {:ok, result}
+
+        _ ->
           Task.shutdown(task)
           @cachex.put(:failed_media_helper_cache, url, nil)
           {:error, {:ffmpeg, :timeout}}
-
-        result ->
-          {:ok, result}
       end
     else
       nil -> {:error, {:ffmpeg, :command_not_found}}
       {:error, _} = error -> error
     end
   end
+
+  defp http_client_opts, do: Pleroma.Config.get([:media_proxy, :proxy_opts, :http], pool: :media)
 end

lib/pleroma/http_signatures_api.ex

@@ -0,0 +1,4 @@
+defmodule Pleroma.HTTPSignaturesAPI do
+  @callback validate_conn(conn :: Plug.Conn.t()) :: boolean
+  @callback signature_for_conn(conn :: Plug.Conn.t()) :: map
+end

lib/pleroma/notification.ex

@@ -73,6 +73,7 @@ def unread_notifications_count(%User{id: user_id}) do
     pleroma:report
     reblog
     poll
+    status
   }
 
   def changeset(%Notification{} = notification, attrs) do
@@ -280,15 +281,10 @@ def set_read_up_to(%{id: user_id} = user, id) do
         select: n.id
       )
 
-    {:ok, %{ids: {_, notification_ids}}} =
     Multi.new()
     |> Multi.update_all(:ids, query, set: [seen: true, updated_at: NaiveDateTime.utc_now()])
     |> Marker.multi_set_last_read_id(user, "notifications")
     |> Repo.transaction()
-
-    for_user_query(user)
-    |> where([n], n.id in ^notification_ids)
-    |> Repo.all()
   end
 
   @spec read_one(User.t(), String.t()) ::
@@ -299,10 +295,6 @@ def read_one(%User{} = user, notification_id) do
       |> Multi.update(:update, changeset(notification, %{seen: true}))
       |> Marker.multi_set_last_read_id(user, "notifications")
       |> Repo.transaction()
-      |> case do
-        {:ok, %{update: notification}} -> {:ok, notification}
-        {:error, :update, changeset, _} -> {:error, changeset}
-      end
     end
   end
 
@@ -361,37 +353,38 @@ def dismiss(%{id: user_id} = _user, id) do
     end
   end
 
-  @spec create_notifications(Activity.t(), keyword()) :: {:ok, [Notification.t()] | []}
+  @spec create_notifications(Activity.t()) :: {:ok, [Notification.t()] | []}
-  def create_notifications(activity, options \\ [])
+  def create_notifications(activity)
 
-  def create_notifications(%Activity{data: %{"to" => _, "type" => "Create"}} = activity, options) do
+  def create_notifications(%Activity{data: %{"to" => _, "type" => "Create"}} = activity) do
     object = Object.normalize(activity, fetch: false)
 
     if object && object.data["type"] == "Answer" do
       {:ok, []}
     else
-      do_create_notifications(activity, options)
+      do_create_notifications(activity)
     end
   end
 
-  def create_notifications(%Activity{data: %{"type" => type}} = activity, options)
+  def create_notifications(%Activity{data: %{"type" => type}} = activity)
       when type in ["Follow", "Like", "Announce", "Move", "EmojiReact", "Flag", "Update"] do
-    do_create_notifications(activity, options)
+    do_create_notifications(activity)
   end
 
-  def create_notifications(_, _), do: {:ok, []}
+  def create_notifications(_), do: {:ok, []}
 
-  defp do_create_notifications(%Activity{} = activity, options) do
+  defp do_create_notifications(%Activity{} = activity) do
-    do_send = Keyword.get(options, :do_send, true)
+    enabled_receivers = get_notified_from_activity(activity)
 
-    {enabled_receivers, disabled_receivers} = get_notified_from_activity(activity)
+    enabled_subscribers = get_notified_subscribers_from_activity(activity)
-    potential_receivers = enabled_receivers ++ disabled_receivers
 
     notifications =
-      Enum.map(potential_receivers, fn user ->
+      (Enum.map(enabled_receivers, fn user ->
-        do_send = do_send && user in enabled_receivers
+         create_notification(activity, user)
-        create_notification(activity, user, do_send: do_send)
+       end) ++
-      end)
+         Enum.map(enabled_subscribers -- enabled_receivers, fn user ->
+           create_notification(activity, user, type: "status")
+         end))
       |> Enum.reject(&is_nil/1)
 
     {:ok, notifications}
@@ -450,7 +443,6 @@ defp type_from_activity_object(%{data: %{"type" => "Create"}} = activity) do
 
   # TODO move to sql, too.
   def create_notification(%Activity{} = activity, %User{} = user, opts \\ []) do
-    do_send = Keyword.get(opts, :do_send, true)
     type = Keyword.get(opts, :type, type_from_activity(activity))
 
     unless skip?(activity, user, opts) do
@@ -465,11 +457,6 @@ def create_notification(%Activity{} = activity, %User{} = user, opts \\ []) do
         |> Marker.multi_set_last_read_id(user, "notifications")
         |> Repo.transaction()
 
-      if do_send do
-        Streamer.stream(["user", "user:notification"], notification)
-        Push.send(notification)
-      end
-
       notification
     end
   end
@@ -502,7 +489,7 @@ def create_poll_notifications(%Activity{} = activity) do
 
   NOTE: might be called for FAKE Activities, see ActivityPub.Utils.get_notified_from_object/1
   """
-  @spec get_notified_from_activity(Activity.t(), boolean()) :: {list(User.t()), list(User.t())}
+  @spec get_notified_from_activity(Activity.t(), boolean()) :: list(User.t())
   def get_notified_from_activity(activity, local_only \\ true)
 
   def get_notified_from_activity(%Activity{data: %{"type" => type}} = activity, local_only)
@@ -527,13 +514,28 @@ def get_notified_from_activity(%Activity{data: %{"type" => type}} = activity, lo
       |> exclude_relationship_restricted_ap_ids(activity)
       |> exclude_thread_muter_ap_ids(activity)
 
-    notification_enabled_users =
     Enum.filter(potential_receivers, fn u -> u.ap_id in notification_enabled_ap_ids end)
-
-    {notification_enabled_users, potential_receivers -- notification_enabled_users}
   end
 
-  def get_notified_from_activity(_, _local_only), do: {[], []}
+  def get_notified_from_activity(_, _local_only), do: []
+
+  def get_notified_subscribers_from_activity(activity, local_only \\ true)
+
+  def get_notified_subscribers_from_activity(
+        %Activity{data: %{"type" => "Create"}} = activity,
+        local_only
+      ) do
+    notification_enabled_ap_ids =
+      []
+      |> Utils.maybe_notify_subscribers(activity)
+
+    potential_receivers =
+      User.get_users_from_set(notification_enabled_ap_ids, local_only: local_only)
+
+    Enum.filter(potential_receivers, fn u -> u.ap_id in notification_enabled_ap_ids end)
+  end
+
+  def get_notified_subscribers_from_activity(_, _), do: []
 
   # For some activities, only notify the author of the object
   def get_potential_receiver_ap_ids(%{data: %{"type" => type, "object" => object_id}})
@@ -576,7 +578,6 @@ def get_potential_receiver_ap_ids(activity) do
     []
     |> Utils.maybe_notify_to_recipients(activity)
     |> Utils.maybe_notify_mentioned_recipients(activity)
-    |> Utils.maybe_notify_subscribers(activity)
     |> Utils.maybe_notify_followers(activity)
     |> Enum.uniq()
   end
@@ -643,6 +644,7 @@ def skip?(activity, user, opts \\ [])
   def skip?(%Activity{} = activity, %User{} = user, opts) do
     [
       :self,
+      :internal,
       :invisible,
       :block_from_strangers,
       :recently_followed,
@@ -662,6 +664,12 @@ def skip?(:self, %Activity{} = activity, %User{} = user, opts) do
     end
   end
 
+  def skip?(:internal, %Activity{} = activity, _user, _opts) do
+    actor = activity.data["actor"]
+    user = User.get_cached_by_ap_id(actor)
+    User.internal?(user)
+  end
+
   def skip?(:invisible, %Activity{} = activity, _user, _opts) do
     actor = activity.data["actor"]
     user = User.get_cached_by_ap_id(actor)
@@ -748,4 +756,12 @@ def mark_context_as_read(%User{id: id}, context) do
     )
     |> Repo.update_all(set: [seen: true])
   end
+
+  @spec send(list(Notification.t())) :: :ok
+  def send(notifications) do
+    Enum.each(notifications, fn notification ->
+      Streamer.stream(["user", "user:notification"], notification)
+      Push.send(notification)
+    end)
+  end
 end

lib/pleroma/rule.ex

@@ -0,0 +1,68 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Rule do
+  use Ecto.Schema
+
+  import Ecto.Changeset
+  import Ecto.Query
+
+  alias Pleroma.Repo
+  alias Pleroma.Rule
+
+  schema "rules" do
+    field(:priority, :integer, default: 0)
+    field(:text, :string)
+    field(:hint, :string)
+
+    timestamps()
+  end
+
+  def changeset(%Rule{} = rule, params \\ %{}) do
+    rule
+    |> cast(params, [:priority, :text, :hint])
+    |> validate_required([:text])
+  end
+
+  def query do
+    Rule
+    |> order_by(asc: :priority)
+    |> order_by(asc: :id)
+  end
+
+  def get(ids) when is_list(ids) do
+    from(r in __MODULE__, where: r.id in ^ids)
+    |> Repo.all()
+  end
+
+  def get(id), do: Repo.get(__MODULE__, id)
+
+  def exists?(id) do
+    from(r in __MODULE__, where: r.id == ^id)
+    |> Repo.exists?()
+  end
+
+  def create(params) do
+    {:ok, rule} =
+      %Rule{}
+      |> changeset(params)
+      |> Repo.insert()
+
+    rule
+  end
+
+  def update(params, id) do
+    {:ok, rule} =
+      get(id)
+      |> changeset(params)
+      |> Repo.update()
+
+    rule
+  end
+
+  def delete(id) do
+    get(id)
+    |> Repo.delete()
+  end
+end

lib/pleroma/scheduled_activity.ex

@@ -204,7 +204,7 @@ def due_activities(offset \\ 0) do
 
   def job_query(scheduled_activity_id) do
     from(j in Oban.Job,
-      where: j.queue == "scheduled_activities",
+      where: j.queue == "federator_outgoing",
       where: fragment("args ->> 'activity_id' = ?::text", ^to_string(scheduled_activity_id))
     )
   end

lib/pleroma/search.ex

@@ -10,8 +10,12 @@ def remove_from_index(%Pleroma.Object{id: object_id}) do
   end
 
   def search(query, options) do
-    search_module = Pleroma.Config.get([Pleroma.Search, :module], Pleroma.Activity)
+    search_module = Pleroma.Config.get([Pleroma.Search, :module])
-
     search_module.search(options[:for_user], query, options)
   end
+
+  def healthcheck_endpoints do
+    search_module = Pleroma.Config.get([Pleroma.Search, :module])
+    search_module.healthcheck_endpoints
+  end
 end

lib/pleroma/search/database_search.ex

@@ -28,7 +28,7 @@ def search(user, search_query, options \\ []) do
       |> Activity.with_preloaded_object()
       |> Activity.restrict_deactivated_users()
       |> restrict_public(user)
-      |> query_with(index_type, search_query, :websearch)
+      |> query_with(index_type, search_query)
       |> maybe_restrict_local(user)
       |> maybe_restrict_author(author)
       |> maybe_restrict_blocked(user)
@@ -48,6 +48,15 @@ def add_to_index(_activity), do: :ok
   @impl true
   def remove_from_index(_object), do: :ok
 
+  @impl true
+  def create_index, do: :ok
+
+  @impl true
+  def drop_index, do: :ok
+
+  @impl true
+  def healthcheck_endpoints, do: nil
+
   def maybe_restrict_author(query, %User{} = author) do
     Activity.Queries.by_author(query, author)
   end
@@ -79,25 +88,7 @@ defp restrict_public(q, _user) do
     )
   end
 
-  defp query_with(q, :gin, search_query, :plain) do
+  defp query_with(q, :gin, search_query) do
-    %{rows: [[tsc]]} =
-      Ecto.Adapters.SQL.query!(
-        Pleroma.Repo,
-        "select current_setting('default_text_search_config')::regconfig::oid;"
-      )
-
-    from([a, o] in q,
-      where:
-        fragment(
-          "to_tsvector(?::oid::regconfig, ?->>'content') @@ plainto_tsquery(?)",
-          ^tsc,
-          o.data,
-          ^search_query
-        )
-    )
-  end
-
-  defp query_with(q, :gin, search_query, :websearch) do
     %{rows: [[tsc]]} =
       Ecto.Adapters.SQL.query!(
         Pleroma.Repo,
@@ -115,19 +106,7 @@ defp query_with(q, :gin, search_query, :websearch) do
     )
   end
 
-  defp query_with(q, :rum, search_query, :plain) do
+  defp query_with(q, :rum, search_query) do
-    from([a, o] in q,
-      where:
-        fragment(
-          "? @@ plainto_tsquery(?)",
-          o.fts_content,
-          ^search_query
-        ),
-      order_by: [fragment("? <=> now()::date", o.inserted_at)]
-    )
-  end
-
-  defp query_with(q, :rum, search_query, :websearch) do
     from([a, o] in q,
       where:
         fragment(

lib/pleroma/search/healthcheck.ex

@@ -0,0 +1,86 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2024 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+defmodule Pleroma.Search.Healthcheck do
+  @doc """
+  Monitors health of search backend to control processing of events based on health and availability.
+  """
+  use GenServer
+  require Logger
+
+  @queue :search_indexing
+  @tick :timer.seconds(5)
+  @timeout :timer.seconds(2)
+
+  def start_link(_) do
+    GenServer.start_link(__MODULE__, [], name: __MODULE__)
+  end
+
+  @impl true
+  def init(_) do
+    state = %{healthy: false}
+    {:ok, state, {:continue, :start}}
+  end
+
+  @impl true
+  def handle_continue(:start, state) do
+    tick()
+    {:noreply, state}
+  end
+
+  @impl true
+  def handle_info(:check, state) do
+    urls = Pleroma.Search.healthcheck_endpoints()
+
+    new_state =
+      if check(urls) do
+        Oban.resume_queue(queue: @queue)
+        Map.put(state, :healthy, true)
+      else
+        Oban.pause_queue(queue: @queue)
+        Map.put(state, :healthy, false)
+      end
+
+    maybe_log_state_change(state, new_state)
+
+    tick()
+    {:noreply, new_state}
+  end
+
+  @impl true
+  def handle_call(:state, _from, state) do
+    {:reply, state, state, :hibernate}
+  end
+
+  def state, do: GenServer.call(__MODULE__, :state)
+
+  def check([]), do: true
+
+  def check(urls) when is_list(urls) do
+    Enum.all?(
+      urls,
+      fn url ->
+        case Pleroma.HTTP.get(url, [], recv_timeout: @timeout) do
+          {:ok, %{status: 200}} -> true
+          _ -> false
+        end
+      end
+    )
+  end
+
+  def check(_), do: true
+
+  defp tick do
+    Process.send_after(self(), :check, @tick)
+  end
+
+  defp maybe_log_state_change(%{healthy: true}, %{healthy: false}) do
+    Logger.error("Pausing Oban queue #{@queue} due to search backend healthcheck failure")
+  end
+
+  defp maybe_log_state_change(%{healthy: false}, %{healthy: true}) do
+    Logger.info("Resuming Oban queue #{@queue} due to search backend healthcheck pass")
+  end
+
+  defp maybe_log_state_change(_, _), do: :ok
+end

lib/pleroma/search/meilisearch.ex

@@ -10,6 +10,12 @@ defmodule Pleroma.Search.Meilisearch do
 
   @behaviour Pleroma.Search.SearchBackend
 
+  @impl true
+  def create_index, do: :ok
+
+  @impl true
+  def drop_index, do: :ok
+
   defp meili_headers do
     private_key = Config.get([Pleroma.Search.Meilisearch, :private_key])
 
@@ -178,4 +184,15 @@ def add_to_index(activity) do
   def remove_from_index(object) do
     meili_delete("/indexes/objects/documents/#{object.id}")
   end
+
+  @impl true
+  def healthcheck_endpoints do
+    endpoint =
+      Config.get([Pleroma.Search.Meilisearch, :url])
+      |> URI.parse()
+      |> Map.put(:path, "/health")
+      |> URI.to_string()
+
+    [endpoint]
+  end
 end

lib/pleroma/search/qdrant_search.ex

@@ -0,0 +1,182 @@
+defmodule Pleroma.Search.QdrantSearch do
+  @behaviour Pleroma.Search.SearchBackend
+  import Ecto.Query
+
+  alias Pleroma.Activity
+  alias Pleroma.Config.Getting, as: Config
+
+  alias __MODULE__.OpenAIClient
+  alias __MODULE__.QdrantClient
+
+  import Pleroma.Search.Meilisearch, only: [object_to_search_data: 1]
+  import Pleroma.Search.DatabaseSearch, only: [maybe_fetch: 3]
+
+  @impl true
+  def create_index do
+    payload = Config.get([Pleroma.Search.QdrantSearch, :qdrant_index_configuration])
+
+    with {:ok, %{status: 200}} <- QdrantClient.put("/collections/posts", payload) do
+      :ok
+    else
+      e -> {:error, e}
+    end
+  end
+
+  @impl true
+  def drop_index do
+    with {:ok, %{status: 200}} <- QdrantClient.delete("/collections/posts") do
+      :ok
+    else
+      e -> {:error, e}
+    end
+  end
+
+  def get_embedding(text) do
+    with {:ok, %{body: %{"data" => [%{"embedding" => embedding}]}}} <-
+           OpenAIClient.post("/v1/embeddings", %{
+             input: text,
+             model: Config.get([Pleroma.Search.QdrantSearch, :openai_model])
+           }) do
+      {:ok, embedding}
+    else
+      _ ->
+        {:error, "Failed to get embedding"}
+    end
+  end
+
+  defp actor_from_activity(%{data: %{"actor" => actor}}) do
+    actor
+  end
+
+  defp actor_from_activity(_), do: nil
+
+  defp build_index_payload(activity, embedding) do
+    actor = actor_from_activity(activity)
+    published_at = activity.data["published"]
+
+    %{
+      points: [
+        %{
+          id: activity.id |> FlakeId.from_string() |> Ecto.UUID.cast!(),
+          vector: embedding,
+          payload: %{actor: actor, published_at: published_at}
+        }
+      ]
+    }
+  end
+
+  defp build_search_payload(embedding, options) do
+    base = %{
+      vector: embedding,
+      limit: options[:limit] || 20,
+      offset: options[:offset] || 0
+    }
+
+    if author = options[:author] do
+      Map.put(base, :filter, %{
+        must: [%{key: "actor", match: %{value: author.ap_id}}]
+      })
+    else
+      base
+    end
+  end
+
+  @impl true
+  def add_to_index(activity) do
+    # This will only index public or unlisted notes
+    maybe_search_data = object_to_search_data(activity.object)
+
+    if activity.data["type"] == "Create" and maybe_search_data do
+      with {:ok, embedding} <- get_embedding(maybe_search_data.content),
+           {:ok, %{status: 200}} <-
+             QdrantClient.put(
+               "/collections/posts/points",
+               build_index_payload(activity, embedding)
+             ) do
+        :ok
+      else
+        e -> {:error, e}
+      end
+    else
+      :ok
+    end
+  end
+
+  @impl true
+  def remove_from_index(object) do
+    activity = Activity.get_by_object_ap_id_with_object(object.data["id"])
+    id = activity.id |> FlakeId.from_string() |> Ecto.UUID.cast!()
+
+    with {:ok, %{status: 200}} <-
+           QdrantClient.post("/collections/posts/points/delete", %{"points" => [id]}) do
+      :ok
+    else
+      e -> {:error, e}
+    end
+  end
+
+  @impl true
+  def search(user, original_query, options) do
+    query = "Represent this sentence for searching relevant passages: #{original_query}"
+
+    with {:ok, embedding} <- get_embedding(query),
+         {:ok, %{body: %{"result" => result}}} <-
+           QdrantClient.post(
+             "/collections/posts/points/search",
+             build_search_payload(embedding, options)
+           ) do
+      ids =
+        Enum.map(result, fn %{"id" => id} ->
+          Ecto.UUID.dump!(id)
+        end)
+
+      from(a in Activity, where: a.id in ^ids)
+      |> Activity.with_preloaded_object()
+      |> Activity.restrict_deactivated_users()
+      |> Ecto.Query.order_by([a], fragment("array_position(?, ?)", ^ids, a.id))
+      |> Pleroma.Repo.all()
+      |> maybe_fetch(user, original_query)
+    else
+      _ ->
+        []
+    end
+  end
+
+  @impl true
+  def healthcheck_endpoints do
+    qdrant_health =
+      Config.get([Pleroma.Search.QdrantSearch, :qdrant_url])
+      |> URI.parse()
+      |> Map.put(:path, "/healthz")
+      |> URI.to_string()
+
+    openai_health = Config.get([Pleroma.Search.QdrantSearch, :openai_healthcheck_url])
+
+    [qdrant_health, openai_health] |> Enum.filter(& &1)
+  end
+end
+
+defmodule Pleroma.Search.QdrantSearch.OpenAIClient do
+  use Tesla
+  alias Pleroma.Config.Getting, as: Config
+
+  plug(Tesla.Middleware.BaseUrl, Config.get([Pleroma.Search.QdrantSearch, :openai_url]))
+  plug(Tesla.Middleware.JSON)
+
+  plug(Tesla.Middleware.Headers, [
+    {"Authorization",
+     "Bearer #{Pleroma.Config.get([Pleroma.Search.QdrantSearch, :openai_api_key])}"}
+  ])
+end
+
+defmodule Pleroma.Search.QdrantSearch.QdrantClient do
+  use Tesla
+  alias Pleroma.Config.Getting, as: Config
+
+  plug(Tesla.Middleware.BaseUrl, Config.get([Pleroma.Search.QdrantSearch, :qdrant_url]))
+  plug(Tesla.Middleware.JSON)
+
+  plug(Tesla.Middleware.Headers, [
+    {"api-key", Pleroma.Config.get([Pleroma.Search.QdrantSearch, :qdrant_api_key])}
+  ])
+end

lib/pleroma/search/search_backend.ex

@@ -21,4 +21,22 @@ defmodule Pleroma.Search.SearchBackend do
   from index.
   """
   @callback remove_from_index(object :: Pleroma.Object.t()) :: :ok | {:error, any()}
+
+  @doc """
+  Create the index
+  """
+  @callback create_index() :: :ok | {:error, any()}
+
+  @doc """
+  Drop the index
+  """
+  @callback drop_index() :: :ok | {:error, any()}
+
+  @doc """
+  Healthcheck endpoints of search backend infrastructure to monitor for controlling
+  processing of jobs in the Oban queue.
+
+  It is expected a 200 response is healthy and other responses are unhealthy.
+  """
+  @callback healthcheck_endpoints :: list() | nil
 end

lib/pleroma/signature.ex

@@ -17,6 +17,7 @@ def key_id_to_actor_id(key_id) do
       key_id
       |> URI.parse()
       |> Map.put(:fragment, nil)
+      |> remove_query()
       |> remove_suffix(@known_suffixes)
 
     maybe_ap_id = URI.to_string(uri)
@@ -33,6 +34,23 @@ def key_id_to_actor_id(key_id) do
     end
   end
 
+  defp remove_query(uri) do
+    if uri.query do
+      new_query =
+        URI.decode_query(uri.query)
+        |> Map.delete("operation")
+        |> URI.encode_query()
+        |> case do
+          "" -> nil
+          query -> query
+        end
+
+      Map.put(uri, :query, new_query)
+    else
+      uri
+    end
+  end
+
   defp remove_suffix(uri, [test | rest]) do
     if not is_nil(uri.path) and String.ends_with?(uri.path, test) do
       Map.put(uri, :path, String.replace(uri.path, test, ""))
@@ -44,8 +62,7 @@ defp remove_suffix(uri, [test | rest]) do
   defp remove_suffix(uri, []), do: uri
 
   def fetch_public_key(conn) do
-    with %{"keyId" => kid} <- HTTPSignatures.signature_for_conn(conn),
+    with {:ok, actor_id} <- get_actor_id(conn),
-         {:ok, actor_id} <- key_id_to_actor_id(kid),
          {:ok, public_key} <- User.get_public_key_for_ap_id(actor_id) do
       {:ok, public_key}
     else
@@ -55,8 +72,7 @@ def fetch_public_key(conn) do
   end
 
   def refetch_public_key(conn) do
-    with %{"keyId" => kid} <- HTTPSignatures.signature_for_conn(conn),
+    with {:ok, actor_id} <- get_actor_id(conn),
-         {:ok, actor_id} <- key_id_to_actor_id(kid),
          {:ok, _user} <- ActivityPub.make_user_from_ap_id(actor_id),
          {:ok, public_key} <- User.get_public_key_for_ap_id(actor_id) do
       {:ok, public_key}
@@ -66,6 +82,16 @@ def refetch_public_key(conn) do
     end
   end
 
+  def get_actor_id(conn) do
+    with %{"keyId" => kid} <- HTTPSignatures.signature_for_conn(conn),
+         {:ok, actor_id} <- key_id_to_actor_id(kid) do
+      {:ok, actor_id}
+    else
+      e ->
+        {:error, e}
+    end
+  end
+
   def sign(%User{keys: keys} = user, headers) do
     with {:ok, private_key, _} <- Keys.keys_from_pem(keys) do
       HTTPSignatures.sign(private_key, user.ap_id <> "#main-key", headers)

lib/pleroma/upload.ex

@@ -239,9 +239,13 @@ defp url_from_spec(%__MODULE__{name: name}, base_url, {:file, path}) do
           ""
         end
 
+    if String.contains?(base_url, Pleroma.Uploaders.IPFS.placeholder()) do
+      String.replace(base_url, Pleroma.Uploaders.IPFS.placeholder(), path)
+    else
       [base_url, path]
       |> Path.join()
     end
+  end
 
   defp url_from_spec(_upload, _base_url, {:url, url}), do: url
 
@@ -277,6 +281,9 @@ def base_url do
           Path.join([upload_base_url, bucket_with_namespace])
         end
 
+      Pleroma.Uploaders.IPFS ->
+        @config_impl.get([Pleroma.Uploaders.IPFS, :get_gateway_url])
+
       _ ->
         public_endpoint || upload_base_url || Pleroma.Web.Endpoint.url() <> "/media/"
     end

lib/pleroma/upload/filter/exiftool/strip_location.ex

@@ -9,8 +9,6 @@ defmodule Pleroma.Upload.Filter.Exiftool.StripLocation do
   """
   @behaviour Pleroma.Upload.Filter
 
-  @spec filter(Pleroma.Upload.t()) :: {:ok, any()} | {:error, String.t()}
-
   # Formats not compatible with exiftool at this time
   def filter(%Pleroma.Upload{content_type: "image/heic"}), do: {:ok, :noop}
   def filter(%Pleroma.Upload{content_type: "image/webp"}), do: {:ok, :noop}

lib/pleroma/upload/filter/mogrifun.ex

@@ -38,7 +38,6 @@ defmodule Pleroma.Upload.Filter.Mogrifun do
     [{"fill", "yellow"}, {"tint", "40"}]
   ]
 
-  @spec filter(Pleroma.Upload.t()) :: {:ok, atom()} | {:error, String.t()}
   def filter(%Pleroma.Upload{tempfile: file, content_type: "image" <> _}) do
     try do
       Filter.Mogrify.do_filter(file, [Enum.random(@filters)])

lib/pleroma/upload/filter/mogrify.ex

@@ -8,7 +8,6 @@ defmodule Pleroma.Upload.Filter.Mogrify do
   @type conversion :: action :: String.t() | {action :: String.t(), opts :: String.t()}
   @type conversions :: conversion() | [conversion()]
 
-  @spec filter(Pleroma.Upload.t()) :: {:ok, :atom} | {:error, String.t()}
   def filter(%Pleroma.Upload{tempfile: file, content_type: "image" <> _}) do
     try do
       do_filter(file, Pleroma.Config.get!([__MODULE__, :args]))

lib/pleroma/uploaders/ipfs.ex

@@ -0,0 +1,77 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Uploaders.IPFS do
+  @behaviour Pleroma.Uploaders.Uploader
+  require Logger
+
+  alias Tesla.Multipart
+
+  @config_impl Application.compile_env(:pleroma, [__MODULE__, :config_impl], Pleroma.Config)
+
+  defp get_final_url(method) do
+    config = @config_impl.get([__MODULE__])
+    post_base_url = Keyword.get(config, :post_gateway_url)
+
+    Path.join([post_base_url, method])
+  end
+
+  def put_file_endpoint do
+    get_final_url("/api/v0/add")
+  end
+
+  def delete_file_endpoint do
+    get_final_url("/api/v0/files/rm")
+  end
+
+  @placeholder "{CID}"
+  def placeholder, do: @placeholder
+
+  @impl true
+  def get_file(file) do
+    b_url = Pleroma.Upload.base_url()
+
+    if String.contains?(b_url, @placeholder) do
+      {:ok, {:url, String.replace(b_url, @placeholder, URI.decode(file))}}
+    else
+      {:error, "IPFS Get URL doesn't contain 'cid' placeholder"}
+    end
+  end
+
+  @impl true
+  def put_file(%Pleroma.Upload{} = upload) do
+    mp =
+      Multipart.new()
+      |> Multipart.add_content_type_param("charset=utf-8")
+      |> Multipart.add_file(upload.tempfile)
+
+    case Pleroma.HTTP.post(put_file_endpoint(), mp, [], params: ["cid-version": "1"]) do
+      {:ok, ret} ->
+        case Jason.decode(ret.body) do
+          {:ok, ret} ->
+            if Map.has_key?(ret, "Hash") do
+              {:ok, {:file, ret["Hash"]}}
+            else
+              {:error, "JSON doesn't contain Hash key"}
+            end
+
+          error ->
+            Logger.error("#{__MODULE__}: #{inspect(error)}")
+            {:error, "JSON decode failed"}
+        end
+
+      error ->
+        Logger.error("#{__MODULE__}: #{inspect(error)}")
+        {:error, "IPFS Gateway upload failed"}
+    end
+  end
+
+  @impl true
+  def delete_file(file) do
+    case Pleroma.HTTP.post(delete_file_endpoint(), "", [], params: [arg: file]) do
+      {:ok, %{status: 204}} -> :ok
+      error -> {:error, inspect(error)}
+    end
+  end
+end

lib/pleroma/user.ex

@@ -1404,6 +1404,40 @@ def get_friends_ids(%User{} = user, page \\ nil) do
     |> Repo.all()
   end
 
+  @spec get_familiar_followers_query(User.t(), User.t(), pos_integer() | nil) :: Ecto.Query.t()
+  def get_familiar_followers_query(%User{} = user, %User{} = current_user, nil) do
+    friends =
+      get_friends_query(current_user)
+      |> where([u], not u.hide_follows)
+      |> select([u], u.id)
+
+    User.Query.build(%{is_active: true})
+    |> where([u], u.id not in ^[user.id, current_user.id])
+    |> join(:inner, [u], r in FollowingRelationship,
+      as: :followers_relationships,
+      on: r.following_id == ^user.id and r.follower_id == u.id
+    )
+    |> where([followers_relationships: r], r.state == ^:follow_accept)
+    |> where([followers_relationships: r], r.follower_id in subquery(friends))
+  end
+
+  def get_familiar_followers_query(%User{} = user, %User{} = current_user, page) do
+    user
+    |> get_familiar_followers_query(current_user, nil)
+    |> User.Query.paginate(page, 20)
+  end
+
+  @spec get_familiar_followers_query(User.t(), User.t()) :: Ecto.Query.t()
+  def get_familiar_followers_query(%User{} = user, %User{} = current_user),
+    do: get_familiar_followers_query(user, current_user, nil)
+
+  @spec get_familiar_followers(User.t(), User.t(), pos_integer() | nil) :: {:ok, list(User.t())}
+  def get_familiar_followers(%User{} = user, %User{} = current_user, page \\ nil) do
+    user
+    |> get_familiar_followers_query(current_user, page)
+    |> Repo.all()
+  end
+
   def increase_note_count(%User{} = user) do
     User
     |> where(id: ^user.id)
@@ -2019,7 +2053,8 @@ defp verify_field_link(field, profile_urls) do
            %{scheme: scheme, userinfo: nil, host: host}
            when not_empty_string(host) and scheme in ["http", "https"] <-
              URI.parse(value),
-           {:not_idn, true} <- {:not_idn, to_string(:idna.encode(host)) == host},
+           {:not_idn, true} <-
+             {:not_idn, match?(^host, to_string(:idna.encode(to_charlist(host))))},
            "me" <- Pleroma.Web.RelMe.maybe_put_rel_me(value, profile_urls) do
         CommonUtils.to_masto_date(NaiveDateTime.utc_now())
       else
@@ -2693,7 +2728,7 @@ defp add_to_block(%User{} = user, %User{} = blocked) do
     end
   end
 
-  @spec add_to_block(User.t(), User.t()) ::
+  @spec remove_from_block(User.t(), User.t()) ::
           {:ok, UserRelationship.t()} | {:ok, nil} | {:error, Ecto.Changeset.t()}
   defp remove_from_block(%User{} = user, %User{} = blocked) do
     with {:ok, relationship} <- UserRelationship.delete_block(user, blocked) do

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -200,7 +200,8 @@ defp insert_activity_with_expiration(data, local, recipients) do
   end
 
   def notify_and_stream(activity) do
-    Notification.create_notifications(activity)
+    {:ok, notifications} = Notification.create_notifications(activity)
+    Notification.send(notifications)
 
     original_activity =
       case activity do
@@ -978,8 +979,9 @@ defp restrict_media(query, _), do: query
 
   defp restrict_replies(query, %{exclude_replies: true}) do
     from(
-      [_activity, object] in query,
+      [activity, object] in query,
-      where: fragment("?->>'inReplyTo' is null", object.data)
+      where:
+        fragment("?->>'inReplyTo' is null or ?->>'type' = 'Announce'", object.data, activity.data)
     )
   end
 
@@ -1259,6 +1261,15 @@ defp restrict_quote_url(query, %{quote_url: quote_url}) do
 
   defp restrict_quote_url(query, _), do: query
 
+  defp restrict_rule(query, %{rule_id: rule_id}) do
+    from(
+      activity in query,
+      where: fragment("(?)->'rules' \\? (?)", activity.data, ^rule_id)
+    )
+  end
+
+  defp restrict_rule(query, _), do: query
+
   defp exclude_poll_votes(query, %{include_poll_votes: true}), do: query
 
   defp exclude_poll_votes(query, _) do
@@ -1421,6 +1432,7 @@ def fetch_activities_query(recipients, opts \\ %{}) do
       |> restrict_instance(opts)
       |> restrict_announce_object_actor(opts)
       |> restrict_filtered(opts)
+      |> restrict_rule(opts)
       |> restrict_quote_url(opts)
       |> maybe_restrict_deactivated_users(opts)
       |> exclude_poll_votes(opts)

lib/pleroma/web/activity_pub/activity_pub_controller.ex

@@ -522,7 +522,7 @@ defp set_requester_reachable(%Plug.Conn{} = conn, _) do
     conn
   end
 
-  defp log_inbox_metadata(conn = %{params: %{"actor" => actor, "type" => type}}, _) do
+  defp log_inbox_metadata(%{params: %{"actor" => actor, "type" => type}} = conn, _) do
     Logger.metadata(actor: actor, type: type)
     conn
   end

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

@@ -0,0 +1,87 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.MRF.AntiMentionSpamPolicy do
+  alias Pleroma.Config
+  alias Pleroma.User
+  require Pleroma.Constants
+
+  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+
+  defp user_has_posted?(%User{} = u), do: u.note_count > 0
+
+  defp user_has_age?(%User{} = u) do
+    user_age_limit = Config.get([:mrf_antimentionspam, :user_age_limit], 30_000)
+    diff = NaiveDateTime.utc_now() |> NaiveDateTime.diff(u.inserted_at, :millisecond)
+    diff >= user_age_limit
+  end
+
+  defp good_reputation?(%User{} = u) do
+    user_has_age?(u) and user_has_posted?(u)
+  end
+
+  # copied from HellthreadPolicy
+  defp get_recipient_count(message) do
+    recipients = (message["to"] || []) ++ (message["cc"] || [])
+
+    follower_collection =
+      User.get_cached_by_ap_id(message["actor"] || message["attributedTo"]).follower_address
+
+    if Enum.member?(recipients, Pleroma.Constants.as_public()) do
+      recipients =
+        recipients
+        |> List.delete(Pleroma.Constants.as_public())
+        |> List.delete(follower_collection)
+
+      {:public, length(recipients)}
+    else
+      recipients =
+        recipients
+        |> List.delete(follower_collection)
+
+      {:not_public, length(recipients)}
+    end
+  end
+
+  defp object_has_recipients?(%{"object" => object} = activity) do
+    {_, object_count} = get_recipient_count(object)
+    {_, activity_count} = get_recipient_count(activity)
+    object_count + activity_count > 0
+  end
+
+  defp object_has_recipients?(object) do
+    {_, count} = get_recipient_count(object)
+    count > 0
+  end
+
+  @impl true
+  def filter(%{"type" => "Create", "actor" => actor} = activity) do
+    with {:ok, %User{local: false} = u} <- User.get_or_fetch_by_ap_id(actor),
+         {:has_mentions, true} <- {:has_mentions, object_has_recipients?(activity)},
+         {:good_reputation, true} <- {:good_reputation, good_reputation?(u)} do
+      {:ok, activity}
+    else
+      {:ok, %User{local: true}} ->
+        {:ok, activity}
+
+      {:has_mentions, false} ->
+        {:ok, activity}
+
+      {:good_reputation, false} ->
+        {:reject, "[AntiMentionSpamPolicy] User rejected"}
+
+      {:error, _} ->
+        {:reject, "[AntiMentionSpamPolicy] Failed to get or fetch user by ap_id"}
+
+      e ->
+        {:reject, "[AntiMentionSpamPolicy] Unhandled error #{inspect(e)}"}
+    end
+  end
+
+  # in all other cases, pass through
+  def filter(message), do: {:ok, message}
+
+  @impl true
+  def describe, do: {:ok, %{}}
+end

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

@@ -0,0 +1,146 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2024 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.MRF.DNSRBLPolicy do
+  @moduledoc """
+  Dynamic activity filtering based on an RBL database
+
+  This MRF makes queries to a custom DNS server which will
+  respond with values indicating the classification of the domain
+  the activity originated from. This method has been widely used
+  in the email anti-spam industry for very fast reputation checks.
+
+  e.g., if the DNS response is 127.0.0.1 or empty, the domain is OK
+  Other values such as 127.0.0.2 may be used for specific classifications.
+
+  Information for why the host is blocked can be stored in a corresponding TXT record.
+
+  This method is fail-open so if the queries fail the activites are accepted.
+
+  An example of software meant for this purpsoe is rbldnsd which can be found
+  at http://www.corpit.ru/mjt/rbldnsd.html or mirrored at
+  https://git.pleroma.social/feld/rbldnsd
+
+  It is highly recommended that you run your own copy of rbldnsd and use an
+  external mechanism to sync/share the contents of the zone file. This is
+  important to keep the latency on the queries as low as possible and prevent
+  your DNS server from being attacked so it fails and content is permitted.
+  """
+
+  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+
+  alias Pleroma.Config
+
+  require Logger
+
+  @query_retries 1
+  @query_timeout 500
+
+  @impl true
+  def filter(%{"actor" => actor} = object) do
+    actor_info = URI.parse(actor)
+
+    with {:ok, object} <- check_rbl(actor_info, object) do
+      {:ok, object}
+    else
+      _ -> {:reject, "[DNSRBLPolicy]"}
+    end
+  end
+
+  @impl true
+  def filter(object), do: {:ok, object}
+
+  @impl true
+  def describe do
+    mrf_dnsrbl =
+      Config.get(:mrf_dnsrbl)
+      |> Enum.into(%{})
+
+    {:ok, %{mrf_dnsrbl: mrf_dnsrbl}}
+  end
+
+  @impl true
+  def config_description do
+    %{
+      key: :mrf_dnsrbl,
+      related_policy: "Pleroma.Web.ActivityPub.MRF.DNSRBLPolicy",
+      label: "MRF DNSRBL",
+      description: "DNS RealTime Blackhole Policy",
+      children: [
+        %{
+          key: :nameserver,
+          type: {:string},
+          description: "DNSRBL Nameserver to Query (IP or hostame)",
+          suggestions: ["127.0.0.1"]
+        },
+        %{
+          key: :port,
+          type: {:string},
+          description: "Nameserver port",
+          suggestions: ["53"]
+        },
+        %{
+          key: :zone,
+          type: {:string},
+          description: "Root zone for querying",
+          suggestions: ["bl.pleroma.com"]
+        }
+      ]
+    }
+  end
+
+  defp check_rbl(%{host: actor_host}, object) do
+    with false <- match?(^actor_host, Pleroma.Web.Endpoint.host()),
+         zone when not is_nil(zone) <- Keyword.get(Config.get([:mrf_dnsrbl]), :zone) do
+      query =
+        Enum.join([actor_host, zone], ".")
+        |> String.to_charlist()
+
+      rbl_response = rblquery(query)
+
+      if Enum.empty?(rbl_response) do
+        {:ok, object}
+      else
+        Task.start(fn ->
+          reason =
+            case rblquery(query, :txt) do
+              [[result]] -> result
+              _ -> "undefined"
+            end
+
+          Logger.warning(
+            "DNSRBL Rejected activity from #{actor_host} for reason: #{inspect(reason)}"
+          )
+        end)
+
+        :error
+      end
+    else
+      _ -> {:ok, object}
+    end
+  end
+
+  defp get_rblhost_ip(rblhost) do
+    case rblhost |> String.to_charlist() |> :inet_parse.address() do
+      {:ok, _} -> rblhost |> String.to_charlist() |> :inet_parse.address()
+      _ -> {:ok, rblhost |> String.to_charlist() |> :inet_res.lookup(:in, :a) |> Enum.random()}
+    end
+  end
+
+  defp rblquery(query, type \\ :a) do
+    config = Config.get([:mrf_dnsrbl])
+
+    case get_rblhost_ip(config[:nameserver]) do
+      {:ok, rblnsip} ->
+        :inet_res.lookup(query, :in, type,
+          nameservers: [{rblnsip, config[:port]}],
+          timeout: @query_timeout,
+          retry: @query_retries
+        )
+
+      _ ->
+        []
+    end
+  end
+end

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

@@ -11,11 +11,6 @@ defmodule Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy do
 
   require Logger
 
-  @adapter_options [
-    pool: :media,
-    recv_timeout: 10_000
-  ]
-
   @impl true
   def history_awareness, do: :auto
 
@@ -27,17 +22,14 @@ defp prefetch(url) do
 
       Logger.debug("Prefetching #{inspect(url)} as #{inspect(prefetch_url)}")
 
-      if Pleroma.Config.get(:env) == :test do
       fetch(prefetch_url)
-      else
-        ConcurrentLimiter.limit(__MODULE__, fn ->
-          Task.start(fn -> fetch(prefetch_url) end)
-        end)
-      end
     end
   end
 
-  defp fetch(url), do: HTTP.get(url, [], @adapter_options)
+  defp fetch(url) do
+    http_client_opts = Pleroma.Config.get([:media_proxy, :proxy_opts, :http], pool: :media)
+    HTTP.get(url, [], http_client_opts)
+  end
 
   defp preload(%{"object" => %{"attachment" => attachments}} = _message) do
     Enum.each(attachments, fn

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

@@ -0,0 +1,265 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.MRF.NsfwApiPolicy do
+  @moduledoc """
+  Hide, delete, or mark sensitive NSFW content with artificial intelligence.
+
+  Requires a NSFW API server, configured like so:
+
+      config :pleroma, Pleroma.Web.ActivityPub.MRF.NsfwMRF,
+        url: "http://127.0.0.1:5000/",
+        threshold: 0.7,
+        mark_sensitive: true,
+        unlist: false,
+        reject: false
+
+  The NSFW API server must implement an HTTP endpoint like this:
+
+      curl http://localhost:5000/?url=https://fedi.com/images/001.jpg
+
+  Returning a response like this:
+
+      {"score", 0.314}
+
+  Where a score is 0-1, with `1` being definitely NSFW.
+
+  A good API server is here: https://github.com/EugenCepoi/nsfw_api
+  You can run it with Docker with a one-liner:
+
+      docker run -it -p 127.0.0.1:5000:5000/tcp --env PORT=5000 eugencepoi/nsfw_api:latest
+
+  Options:
+
+  - `url`: Base URL of the API server. Default: "http://127.0.0.1:5000/"
+  - `threshold`: Lowest score to take action on. Default: `0.7`
+  - `mark_sensitive`: Mark sensitive all detected NSFW content? Default: `true`
+  - `unlist`: Unlist all detected NSFW content? Default: `false`
+  - `reject`: Reject all detected NSFW content (takes precedence)? Default: `false`
+  """
+  alias Pleroma.Config
+  alias Pleroma.Constants
+  alias Pleroma.HTTP
+  alias Pleroma.User
+
+  require Logger
+  require Pleroma.Constants
+
+  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+  @policy :mrf_nsfw_api
+
+  def build_request_url(url) do
+    Config.get([@policy, :url])
+    |> URI.parse()
+    |> fix_path()
+    |> Map.put(:query, "url=#{url}")
+    |> URI.to_string()
+  end
+
+  def parse_url(url) do
+    request = build_request_url(url)
+
+    with {:ok, %Tesla.Env{body: body}} <- HTTP.get(request) do
+      Jason.decode(body)
+    else
+      error ->
+        Logger.warning("""
+        [NsfwApiPolicy]: The API server failed. Skipping.
+        #{inspect(error)}
+        """)
+
+        error
+    end
+  end
+
+  def check_url_nsfw(url) when is_binary(url) do
+    threshold = Config.get([@policy, :threshold])
+
+    case parse_url(url) do
+      {:ok, %{"score" => score}} when score >= threshold ->
+        {:nsfw, %{url: url, score: score, threshold: threshold}}
+
+      {:ok, %{"score" => score}} ->
+        {:sfw, %{url: url, score: score, threshold: threshold}}
+
+      _ ->
+        {:sfw, %{url: url, score: nil, threshold: threshold}}
+    end
+  end
+
+  def check_url_nsfw(%{"href" => url}) when is_binary(url) do
+    check_url_nsfw(url)
+  end
+
+  def check_url_nsfw(url) do
+    threshold = Config.get([@policy, :threshold])
+    {:sfw, %{url: url, score: nil, threshold: threshold}}
+  end
+
+  def check_attachment_nsfw(%{"url" => urls} = attachment) when is_list(urls) do
+    if Enum.all?(urls, &match?({:sfw, _}, check_url_nsfw(&1))) do
+      {:sfw, attachment}
+    else
+      {:nsfw, attachment}
+    end
+  end
+
+  def check_attachment_nsfw(%{"url" => url} = attachment) when is_binary(url) do
+    case check_url_nsfw(url) do
+      {:sfw, _} -> {:sfw, attachment}
+      {:nsfw, _} -> {:nsfw, attachment}
+    end
+  end
+
+  def check_attachment_nsfw(attachment), do: {:sfw, attachment}
+
+  def check_object_nsfw(%{"attachment" => attachments} = object) when is_list(attachments) do
+    if Enum.all?(attachments, &match?({:sfw, _}, check_attachment_nsfw(&1))) do
+      {:sfw, object}
+    else
+      {:nsfw, object}
+    end
+  end
+
+  def check_object_nsfw(%{"object" => %{} = child_object} = object) do
+    case check_object_nsfw(child_object) do
+      {:sfw, _} -> {:sfw, object}
+      {:nsfw, _} -> {:nsfw, object}
+    end
+  end
+
+  def check_object_nsfw(object), do: {:sfw, object}
+
+  @impl true
+  def filter(object) do
+    with {:sfw, object} <- check_object_nsfw(object) do
+      {:ok, object}
+    else
+      {:nsfw, _data} -> handle_nsfw(object)
+      _ -> {:reject, "NSFW: Attachment rejected"}
+    end
+  end
+
+  defp handle_nsfw(object) do
+    if Config.get([@policy, :reject]) do
+      {:reject, object}
+    else
+      {:ok,
+       object
+       |> maybe_unlist()
+       |> maybe_mark_sensitive()}
+    end
+  end
+
+  defp maybe_unlist(object) do
+    if Config.get([@policy, :unlist]) do
+      unlist(object)
+    else
+      object
+    end
+  end
+
+  defp maybe_mark_sensitive(object) do
+    if Config.get([@policy, :mark_sensitive]) do
+      mark_sensitive(object)
+    else
+      object
+    end
+  end
+
+  def unlist(%{"to" => to, "cc" => cc, "actor" => actor} = object) do
+    with %User{} = user <- User.get_cached_by_ap_id(actor) do
+      to =
+        [user.follower_address | to]
+        |> List.delete(Constants.as_public())
+        |> Enum.uniq()
+
+      cc =
+        [Constants.as_public() | cc]
+        |> List.delete(user.follower_address)
+        |> Enum.uniq()
+
+      object
+      |> Map.put("to", to)
+      |> Map.put("cc", cc)
+    else
+      _ -> raise "[NsfwApiPolicy]: Could not find user #{actor}"
+    end
+  end
+
+  def mark_sensitive(%{"object" => child_object} = object) when is_map(child_object) do
+    Map.put(object, "object", mark_sensitive(child_object))
+  end
+
+  def mark_sensitive(object) when is_map(object) do
+    tags = (object["tag"] || []) ++ ["nsfw"]
+
+    object
+    |> Map.put("tag", tags)
+    |> Map.put("sensitive", true)
+  end
+
+  # Hackney needs a trailing slash
+  defp fix_path(%URI{path: path} = uri) when is_binary(path) do
+    path = String.trim_trailing(path, "/") <> "/"
+    Map.put(uri, :path, path)
+  end
+
+  defp fix_path(%URI{path: nil} = uri), do: Map.put(uri, :path, "/")
+
+  @impl true
+  def describe do
+    options = %{
+      threshold: Config.get([@policy, :threshold]),
+      mark_sensitive: Config.get([@policy, :mark_sensitive]),
+      unlist: Config.get([@policy, :unlist]),
+      reject: Config.get([@policy, :reject])
+    }
+
+    {:ok, %{@policy => options}}
+  end
+
+  @impl true
+  def config_description do
+    %{
+      key: @policy,
+      related_policy: to_string(__MODULE__),
+      label: "NSFW API Policy",
+      description:
+        "Hide, delete, or mark sensitive NSFW content with artificial intelligence. Requires running an external API server.",
+      children: [
+        %{
+          key: :url,
+          type: :string,
+          description: "Base URL of the API server.",
+          suggestions: ["http://127.0.0.1:5000/"]
+        },
+        %{
+          key: :threshold,
+          type: :float,
+          description: "Lowest score to take action on. Between 0 and 1.",
+          suggestions: [0.7]
+        },
+        %{
+          key: :mark_sensitive,
+          type: :boolean,
+          description: "Mark sensitive all detected NSFW content?",
+          suggestions: [true]
+        },
+        %{
+          key: :unlist,
+          type: :boolean,
+          description: "Unlist sensitive all detected NSFW content?",
+          suggestions: [false]
+        },
+        %{
+          key: :reject,
+          type: :boolean,
+          description: "Reject sensitive all detected NSFW content (takes precedence)?",
+          suggestions: [false]
+        }
+      ]
+    }
+  end
+end

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

@@ -15,6 +15,7 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.AttachmentValidator do
     field(:type, :string, default: "Link")
     field(:mediaType, ObjectValidators.MIME, default: "application/octet-stream")
     field(:name, :string)
+    field(:summary, :string)
     field(:blurhash, :string)
 
     embeds_many :url, UrlObjectValidator, primary_key: false do
@@ -44,7 +45,7 @@ def changeset(struct, data) do
       |> fix_url()
 
     struct
-    |> cast(data, [:id, :type, :mediaType, :name, :blurhash])
+    |> cast(data, [:id, :type, :mediaType, :name, :summary, :blurhash])
     |> cast_embed(:url, with: &url_changeset/2, required: true)
     |> validate_inclusion(:type, ~w[Link Document Audio Image Video])
     |> validate_required([:type, :mediaType])

lib/pleroma/web/activity_pub/side_effects.ex

@@ -21,7 +21,6 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do
   alias Pleroma.Web.ActivityPub.Builder
   alias Pleroma.Web.ActivityPub.Pipeline
   alias Pleroma.Web.ActivityPub.Utils
-  alias Pleroma.Web.Push
   alias Pleroma.Web.Streamer
   alias Pleroma.Workers.PollWorker
 
@@ -125,7 +124,7 @@ def handle(
         nil
     end
 
-    {:ok, notifications} = Notification.create_notifications(object, do_send: false)
+    {:ok, notifications} = Notification.create_notifications(object)
 
     meta =
       meta
@@ -184,7 +183,11 @@ def handle(%{data: %{"type" => "Like"}} = object, meta) do
     liked_object = Object.get_by_ap_id(object.data["object"])
     Utils.add_like_to_object(object, liked_object)
 
-    Notification.create_notifications(object)
+    {:ok, notifications} = Notification.create_notifications(object)
+
+    meta =
+      meta
+      |> add_notifications(notifications)
 
     {:ok, object, meta}
   end
@@ -202,7 +205,7 @@ def handle(%{data: %{"type" => "Like"}} = object, meta) do
   def handle(%{data: %{"type" => "Create"}} = activity, meta) do
     with {:ok, object, meta} <- handle_object_creation(meta[:object_data], activity, meta),
          %User{} = user <- User.get_cached_by_ap_id(activity.data["actor"]) do
-      {:ok, notifications} = Notification.create_notifications(activity, do_send: false)
+      {:ok, notifications} = Notification.create_notifications(activity)
       {:ok, _user} = ActivityPub.increase_note_count_if_public(user, object)
       {:ok, _user} = ActivityPub.update_last_status_at_if_public(user, object)
 
@@ -256,11 +259,13 @@ def handle(%{data: %{"type" => "Announce"}} = object, meta) do
 
     Utils.add_announce_to_object(object, announced_object)
 
-    if !User.internal?(user) do
+    {:ok, notifications} = Notification.create_notifications(object)
-      Notification.create_notifications(object)
 
-      ap_streamer().stream_out(object)
+    if !User.internal?(user), do: ap_streamer().stream_out(object)
-    end
+
+    meta =
+      meta
+      |> add_notifications(notifications)
 
     {:ok, object, meta}
   end
@@ -281,7 +286,11 @@ def handle(%{data: %{"type" => "EmojiReact"}} = object, meta) do
     reacted_object = Object.get_by_ap_id(object.data["object"])
     Utils.add_emoji_reaction_to_object(object, reacted_object)
 
-    Notification.create_notifications(object)
+    {:ok, notifications} = Notification.create_notifications(object)
+
+    meta =
+      meta
+      |> add_notifications(notifications)
 
     {:ok, object, meta}
   end
@@ -585,10 +594,7 @@ defp delete_object(object) do
 
   defp send_notifications(meta) do
     Keyword.get(meta, :notifications, [])
-    |> Enum.each(fn notification ->
+    |> Notification.send()
-      Streamer.stream(["user", "user:notification"], notification)
-      Push.send(notification)
-    end)
 
     meta
   end

lib/pleroma/web/activity_pub/utils.ex

@@ -721,14 +721,18 @@ def make_listen_data(params, additional) do
 
   #### Flag-related helpers
   @spec make_flag_data(map(), map()) :: map()
-  def make_flag_data(%{actor: actor, context: context, content: content} = params, additional) do
+  def make_flag_data(
+        %{actor: actor, context: context, content: content} = params,
+        additional
+      ) do
     %{
       "type" => "Flag",
       "actor" => actor.ap_id,
       "content" => content,
       "object" => build_flag_object(params),
       "context" => context,
-      "state" => "open"
+      "state" => "open",
+      "rules" => Map.get(params, :rules, nil)
     }
     |> Map.merge(additional)
   end

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

@@ -0,0 +1,62 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.AdminAPI.RuleController do
+  use Pleroma.Web, :controller
+
+  alias Pleroma.Repo
+  alias Pleroma.Rule
+  alias Pleroma.Web.Plugs.OAuthScopesPlug
+
+  import Pleroma.Web.ControllerHelper,
+    only: [
+      json_response: 3
+    ]
+
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
+
+  plug(
+    OAuthScopesPlug,
+    %{scopes: ["admin:write"]}
+    when action in [:create, :update, :delete]
+  )
+
+  plug(OAuthScopesPlug, %{scopes: ["admin:read"]} when action == :index)
+
+  action_fallback(AdminAPI.FallbackController)
+
+  defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.Admin.RuleOperation
+
+  def index(conn, _) do
+    rules =
+      Rule.query()
+      |> Repo.all()
+
+    render(conn, "index.json", rules: rules)
+  end
+
+  def create(%{body_params: params} = conn, _) do
+    rule =
+      params
+      |> Rule.create()
+
+    render(conn, "show.json", rule: rule)
+  end
+
+  def update(%{body_params: params} = conn, %{id: id}) do
+    rule =
+      params
+      |> Rule.update(id)
+
+    render(conn, "show.json", rule: rule)
+  end
+
+  def delete(conn, %{id: id}) do
+    with {:ok, _} <- Rule.delete(id) do
+      json(conn, %{})
+    else
+      _ -> json_response(conn, :bad_request, "")
+    end
+  end
+end

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

@@ -6,9 +6,11 @@ defmodule Pleroma.Web.AdminAPI.ReportView do
   use Pleroma.Web, :view
 
   alias Pleroma.HTML
+  alias Pleroma.Rule
   alias Pleroma.User
   alias Pleroma.Web.AdminAPI
   alias Pleroma.Web.AdminAPI.Report
+  alias Pleroma.Web.AdminAPI.RuleView
   alias Pleroma.Web.CommonAPI.Utils
   alias Pleroma.Web.MastodonAPI.StatusView
 
@@ -46,7 +48,8 @@ def render("show.json", %{report: report, user: user, account: account, statuses
           as: :activity
         }),
       state: report.data["state"],
-      notes: render(__MODULE__, "index_notes.json", %{notes: report.report_notes})
+      notes: render(__MODULE__, "index_notes.json", %{notes: report.report_notes}),
+      rules: rules(Map.get(report.data, "rules", nil))
     }
   end
 
@@ -71,4 +74,16 @@ def render("show_note.json", %{
       created_at: Utils.to_masto_date(inserted_at)
     }
   end
+
+  defp rules(nil) do
+    []
+  end
+
+  defp rules(rule_ids) do
+    rules =
+      rule_ids
+      |> Rule.get()
+
+    render(RuleView, "index.json", rules: rules)
+  end
 end

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

@@ -0,0 +1,22 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.AdminAPI.RuleView do
+  use Pleroma.Web, :view
+
+  require Pleroma.Constants
+
+  def render("index.json", %{rules: rules} = _opts) do
+    render_many(rules, __MODULE__, "show.json")
+  end
+
+  def render("show.json", %{rule: rule} = _opts) do
+    %{
+      id: to_string(rule.id),
+      priority: rule.priority,
+      text: rule.text,
+      hint: rule.hint
+    }
+  end
+end

lib/pleroma/web/api_spec.ex

@@ -97,6 +97,7 @@ def spec(opts \\ []) do
               "Frontend management",
               "Instance configuration",
               "Instance documents",
+              "Instance rule managment",
               "Invites",
               "MediaProxy cache",
               "OAuth application management",

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

@@ -11,6 +11,7 @@ defmodule Pleroma.Web.ApiSpec.AccountOperation do
   alias Pleroma.Web.ApiSpec.Schemas.ActorType
   alias Pleroma.Web.ApiSpec.Schemas.ApiError
   alias Pleroma.Web.ApiSpec.Schemas.BooleanLike
+  alias Pleroma.Web.ApiSpec.Schemas.FlakeID
   alias Pleroma.Web.ApiSpec.Schemas.List
   alias Pleroma.Web.ApiSpec.Schemas.Status
   alias Pleroma.Web.ApiSpec.Schemas.VisibilityScope
@@ -513,6 +514,48 @@ def identity_proofs_operation do
     }
   end
 
+  def familiar_followers_operation do
+    %Operation{
+      tags: ["Retrieve account information"],
+      summary: "Followers that you follow",
+      operationId: "AccountController.familiar_followers",
+      description:
+        "Obtain a list of all accounts that follow a given account, filtered for accounts you follow.",
+      security: [%{"oAuth" => ["read:follows"]}],
+      parameters: [
+        Operation.parameter(
+          :id,
+          :query,
+          %Schema{
+            oneOf: [%Schema{type: :array, items: %Schema{type: :string}}, %Schema{type: :string}]
+          },
+          "Account IDs",
+          example: "123"
+        )
+      ],
+      responses: %{
+        200 =>
+          Operation.response("Accounts", "application/json", %Schema{
+            title: "ArrayOfAccounts",
+            type: :array,
+            items: %Schema{
+              title: "Account",
+              type: :object,
+              properties: %{
+                id: FlakeID,
+                accounts: %Schema{
+                  title: "ArrayOfAccounts",
+                  type: :array,
+                  items: Account,
+                  example: [Account.schema().example]
+                }
+              }
+            }
+          })
+      }
+    }
+  end
+
   defp create_request do
     %Schema{
       title: "AccountCreateRequest",

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

@@ -30,6 +30,12 @@ def index_operation do
           report_state(),
           "Filter by report state"
         ),
+        Operation.parameter(
+          :rule_id,
+          :query,
+          %Schema{type: :string},
+          "Filter by selected rule id"
+        ),
         Operation.parameter(
           :limit,
           :query,
@@ -169,6 +175,17 @@ defp report do
               inserted_at: %Schema{type: :string, format: :"date-time"}
             }
           }
+        },
+        rules: %Schema{
+          type: :array,
+          items: %Schema{
+            type: :object,
+            properties: %{
+              id: %Schema{type: :string},
+              text: %Schema{type: :string},
+              hint: %Schema{type: :string, nullable: true}
+            }
+          }
         }
       }
     }

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

@@ -0,0 +1,115 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.Admin.RuleOperation 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: ["Instance rule managment"],
+      summary: "Retrieve list of instance rules",
+      operationId: "AdminAPI.RuleController.index",
+      security: [%{"oAuth" => ["admin:read"]}],
+      responses: %{
+        200 =>
+          Operation.response("Response", "application/json", %Schema{
+            type: :array,
+            items: rule()
+          }),
+        403 => Operation.response("Forbidden", "application/json", ApiError)
+      }
+    }
+  end
+
+  def create_operation do
+    %Operation{
+      tags: ["Instance rule managment"],
+      summary: "Create new rule",
+      operationId: "AdminAPI.RuleController.create",
+      security: [%{"oAuth" => ["admin:write"]}],
+      parameters: admin_api_params(),
+      requestBody: request_body("Parameters", create_request(), required: true),
+      responses: %{
+        200 => Operation.response("Response", "application/json", rule()),
+        400 => Operation.response("Bad Request", "application/json", ApiError),
+        403 => Operation.response("Forbidden", "application/json", ApiError)
+      }
+    }
+  end
+
+  def update_operation do
+    %Operation{
+      tags: ["Instance rule managment"],
+      summary: "Modify existing rule",
+      operationId: "AdminAPI.RuleController.update",
+      security: [%{"oAuth" => ["admin:write"]}],
+      parameters: [Operation.parameter(:id, :path, :string, "Rule ID")],
+      requestBody: request_body("Parameters", update_request(), required: true),
+      responses: %{
+        200 => Operation.response("Response", "application/json", rule()),
+        400 => Operation.response("Bad Request", "application/json", ApiError),
+        403 => Operation.response("Forbidden", "application/json", ApiError)
+      }
+    }
+  end
+
+  def delete_operation do
+    %Operation{
+      tags: ["Instance rule managment"],
+      summary: "Delete rule",
+      operationId: "AdminAPI.RuleController.delete",
+      parameters: [Operation.parameter(:id, :path, :string, "Rule ID")],
+      security: [%{"oAuth" => ["admin:write"]}],
+      responses: %{
+        200 => empty_object_response(),
+        404 => Operation.response("Not Found", "application/json", ApiError),
+        403 => Operation.response("Forbidden", "application/json", ApiError)
+      }
+    }
+  end
+
+  defp create_request do
+    %Schema{
+      type: :object,
+      required: [:text],
+      properties: %{
+        priority: %Schema{type: :integer},
+        text: %Schema{type: :string},
+        hint: %Schema{type: :string}
+      }
+    }
+  end
+
+  defp update_request do
+    %Schema{
+      type: :object,
+      properties: %{
+        priority: %Schema{type: :integer},
+        text: %Schema{type: :string},
+        hint: %Schema{type: :string}
+      }
+    }
+  end
+
+  defp rule do
+    %Schema{
+      type: :object,
+      properties: %{
+        id: %Schema{type: :string},
+        priority: %Schema{type: :integer},
+        text: %Schema{type: :string},
+        hint: %Schema{type: :string, nullable: true}
+      }
+    }
+  end
+end

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

@@ -46,6 +46,17 @@ def peers_operation do
     }
   end
 
+  def rules_operation do
+    %Operation{
+      tags: ["Instance misc"],
+      summary: "Retrieve list of instance rules",
+      operationId: "InstanceController.rules",
+      responses: %{
+        200 => Operation.response("Array of domains", "application/json", array_of_rules())
+      }
+    }
+  end
+
   defp instance do
     %Schema{
       type: :object,
@@ -181,7 +192,8 @@ defp instance do
         "urls" => %{
           "streaming_api" => "wss://lain.com"
         },
-        "version" => "2.7.2 (compatible; Pleroma 2.0.50-536-g25eec6d7-develop)"
+        "version" => "2.7.2 (compatible; Pleroma 2.0.50-536-g25eec6d7-develop)",
+        "rules" => array_of_rules()
       }
     }
   end
@@ -371,4 +383,18 @@ defp array_of_domains do
       example: ["pleroma.site", "lain.com", "bikeshed.party"]
     }
   end
+
+  defp array_of_rules do
+    %Schema{
+      type: :array,
+      items: %Schema{
+        type: :object,
+        properties: %{
+          id: %Schema{type: :string},
+          text: %Schema{type: :string},
+          hint: %Schema{type: :string}
+        }
+      }
+    }
+  end
 end

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

@@ -202,7 +202,8 @@ defp notification_type do
         "pleroma:report",
         "move",
         "follow_request",
-        "poll"
+        "poll",
+        "status"
       ],
       description: """
       The type of event that resulted in the notification.
@@ -216,6 +217,7 @@ defp notification_type do
       - `pleroma:emoji_reaction` - Someone reacted with emoji to your status
       - `pleroma:chat_mention` - Someone mentioned you in a chat message
       - `pleroma:report` - Someone was reported
+      - `status` - Someone you are subscribed to created a status
       """
     }
   end

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

@@ -5,7 +5,6 @@
 defmodule Pleroma.Web.ApiSpec.PleromaNotificationOperation do
   alias OpenApiSpex.Operation
   alias OpenApiSpex.Schema
-  alias Pleroma.Web.ApiSpec.NotificationOperation
   alias Pleroma.Web.ApiSpec.Schemas.ApiError
 
   import Pleroma.Web.ApiSpec.Helpers
@@ -35,12 +34,7 @@ def mark_as_read_operation do
           Operation.response(
             "A Notification or array of Notifications",
             "application/json",
-            %Schema{
+            %Schema{type: :string}
-              anyOf: [
-                %Schema{type: :array, items: NotificationOperation.notification()},
-                NotificationOperation.notification()
-              ]
-            }
           ),
         400 => Operation.response("Bad Request", "application/json", ApiError)
       }

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

@@ -53,6 +53,12 @@ defp create_request do
           default: false,
           description:
             "If the account is remote, should the report be forwarded to the remote admin?"
+        },
+        rule_ids: %Schema{
+          type: :array,
+          nullable: true,
+          items: %Schema{type: :string},
+          description: "Array of rules"
         }
       },
       required: [:account_id],
@@ -60,7 +66,8 @@ defp create_request do
         "account_id" => "123",
         "status_ids" => ["1337"],
         "comment" => "bad status!",
-        "forward" => "false"
+        "forward" => "false",
+        "rule_ids" => ["3"]
       }
     }
   end

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

@@ -50,7 +50,11 @@ defmodule Pleroma.Web.ApiSpec.Schemas.Attachment do
       pleroma: %Schema{
         type: :object,
         properties: %{
-          mime_type: %Schema{type: :string, description: "mime type of the attachment"}
+          mime_type: %Schema{type: :string, description: "mime type of the attachment"},
+          name: %Schema{
+            type: :string,
+            description: "Name of the attachment, typically the filename"
+          }
         }
       }
     },