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[#923] Nickname & email selection for external registrations, option to connect to existing account.

This commit is contained in:
Ivan Tashkinov 2019-03-20 10:35:31 +03:00
parent 40e9a04c31
commit e17a9a1f66
8 changed files with 309 additions and 127 deletions
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20
lib/pleroma/registration.ex
View File

@ -11,6 +11,8 @@ defmodule Pleroma.Registration do
alias Pleroma.Repo
alias Pleroma.User
@primary_key {:id, Pleroma.FlakeId, autogenerate: true}
schema "registrations" do
belongs_to(:user, User, type: Pleroma.FlakeId)
field(:provider, :string)
@ -20,6 +22,18 @@ defmodule Pleroma.Registration do
timestamps()
end
def nickname(registration, default \\ nil),
do: Map.get(registration.info, "nickname", default)
def email(registration, default \\ nil),
do: Map.get(registration.info, "email", default)
def name(registration, default \\ nil),
do: Map.get(registration.info, "name", default)
def description(registration, default \\ nil),
do: Map.get(registration.info, "description", default)
def changeset(registration, params \\ %{}) do
registration
|> cast(params, [:user_id, :provider, :uid, :info])
@ -28,6 +42,12 @@ def changeset(registration, params \\ %{}) do
|> unique_constraint(:uid, name: :registrations_provider_uid_index)
end
def bind_to_user(registration, user) do
registration
|> changeset(%{user_id: (user && user.id) || nil})
|> Repo.update()
end
def get_by_provider_uid(provider, uid) do
Repo.get_by(Registration,
provider: to_string(provider),

12
lib/pleroma/web/auth/authenticator.ex
View File

@ -4,6 +4,7 @@
defmodule Pleroma.Web.Auth.Authenticator do
alias Pleroma.User
alias Pleroma.Registration
def implementation do
Pleroma.Config.get(
@ -15,10 +16,15 @@ def implementation do
@callback get_user(Plug.Conn.t(), Map.t()) :: {:ok, User.t()} | {:error, any()}
def get_user(plug, params), do: implementation().get_user(plug, params)
@callback get_by_external_registration(Plug.Conn.t(), Map.t()) ::
@callback create_from_registration(Plug.Conn.t(), Map.t(), Registration.t()) ::
{:ok, User.t()} | {:error, any()}
def get_by_external_registration(plug, params),
do: implementation().get_by_external_registration(plug, params)
def create_from_registration(plug, params, registration),
do: implementation().create_from_registration(plug, params, registration)
@callback get_registration(Plug.Conn.t(), Map.t()) ::
{:ok, Registration.t()} | {:error, any()}
def get_registration(plug, params),
do: implementation().get_registration(plug, params)
@callback handle_error(Plug.Conn.t(), any()) :: any()
def handle_error(plug, error), do: implementation().handle_error(plug, error)

11
lib/pleroma/web/auth/ldap_authenticator.ex
View File

@ -8,10 +8,15 @@ defmodule Pleroma.Web.Auth.LDAPAuthenticator do
require Logger
@behaviour Pleroma.Web.Auth.Authenticator
@base Pleroma.Web.Auth.PleromaAuthenticator
@connection_timeout 10_000
@search_timeout 10_000
defdelegate get_registration(conn, params), to: @base
defdelegate create_from_registration(conn, params, registration), to: @base
def get_user(%Plug.Conn{} = conn, params) do
if Pleroma.Config.get([:ldap, :enabled]) do
{name, password} =
@ -29,19 +34,17 @@ def get_user(%Plug.Conn{} = conn, params) do
{:error, {:ldap_connection_error, _}} ->
# When LDAP is unavailable, try default authenticator
Pleroma.Web.Auth.PleromaAuthenticator.get_user(conn, params)
@base.get_user(conn, params)
error ->
error
end
else
# Fall back to default authenticator
Pleroma.Web.Auth.PleromaAuthenticator.get_user(conn, params)
@base.get_user(conn, params)
end
end
def get_by_external_registration(conn, params), do: get_user(conn, params)
def handle_error(%Plug.Conn{} = _conn, error) do
error
end

55
lib/pleroma/web/auth/pleroma_authenticator.ex
View File

@ -29,35 +29,38 @@ def get_user(%Plug.Conn{} = _conn, params) do
end
end
def get_by_external_registration(
def get_registration(
%Plug.Conn{assigns: %{ueberauth_auth: %{provider: provider, uid: uid} = auth}},
_params
) do
registration = Registration.get_by_provider_uid(provider, uid)
if registration do
user = Repo.preload(registration, :user).user
{:ok, user}
{:ok, registration}
else
info = auth.info
email = info.email
nickname = info.nickname
# Note: nullifying email in case this email is already taken
email =
if email && User.get_by_email(email) do
nil
else
email
Registration.changeset(%Registration{}, %{
provider: to_string(provider),
uid: to_string(uid),
info: %{
"nickname" => info.nickname,
"email" => info.email,
"name" => info.name,
"description" => info.description
}
})
|> Repo.insert()
end
end
# Note: generating a random numeric suffix to nickname in case this nickname is already taken
nickname =
if nickname && User.get_by_nickname(nickname) do
"#{nickname}#{:os.system_time()}"
else
nickname
end
def get_registration(%Plug.Conn{} = _conn, _params), do: {:error, :missing_credentials}
def create_from_registration(_conn, params, registration) do
nickname = value([params["nickname"], Registration.nickname(registration)])
email = value([params["email"], Registration.email(registration)])
name = value([params["name"], Registration.name(registration)]) || nickname
bio = value([params["bio"], Registration.description(registration)])
random_password = :crypto.strong_rand_bytes(64) |> Base.encode64()
@ -65,10 +68,10 @@ def get_by_external_registration(
User.register_changeset(
%User{},
%{
name: info.name,
bio: info.description,
email: email,
nickname: nickname,
name: name,
bio: bio,
password: random_password,
password_confirmation: random_password
},
@ -77,20 +80,12 @@ def get_by_external_registration(
)
|> Repo.insert(),
{:ok, _} <-
Registration.changeset(%Registration{}, %{
user_id: new_user.id,
provider: to_string(provider),
uid: to_string(uid),
info: %{nickname: info.nickname, email: info.email}
})
|> Repo.insert() do
Registration.changeset(registration, %{user_id: new_user.id}) |> Repo.update() do
{:ok, new_user}
end
end
end
def get_by_external_registration(%Plug.Conn{} = _conn, _params),
do: {:error, :missing_credentials}
defp value(list), do: Enum.find(list, &(to_string(&1) != ""))
def handle_error(%Plug.Conn{} = _conn, error) do
error

237
lib/pleroma/web/oauth/oauth_controller.ex
View File

@ -7,6 +7,7 @@ defmodule Pleroma.Web.OAuth.OAuthController do
alias Pleroma.Repo
alias Pleroma.User
alias Pleroma.Registration
alias Pleroma.Web.Auth.Authenticator
alias Pleroma.Web.OAuth.App
alias Pleroma.Web.OAuth.Authorization
@ -21,52 +22,6 @@ defmodule Pleroma.Web.OAuth.OAuthController do
action_fallback(Pleroma.Web.OAuth.FallbackController)
def request(conn, params) do
message =
if params["provider"] do
"Unsupported OAuth provider: #{params["provider"]}."
else
"Bad OAuth request."
end
conn
|> put_flash(:error, message)
|> redirect(to: "/")
end
def callback(%{assigns: %{ueberauth_failure: failure}} = conn, %{"redirect_uri" => redirect_uri}) do
messages = for e <- Map.get(failure, :errors, []), do: e.message
message = Enum.join(messages, "; ")
conn
|> put_flash(:error, "Failed to authenticate: #{message}.")
|> redirect(external: redirect_uri(conn, redirect_uri))
end
def callback(
conn,
%{"client_id" => client_id, "redirect_uri" => redirect_uri} = params
) do
with {:ok, user} <- Authenticator.get_by_external_registration(conn, params) do
do_create_authorization(
conn,
%{
"authorization" => %{
"client_id" => client_id,
"redirect_uri" => redirect_uri,
"scope" => oauth_scopes(params, nil)
}
},
user
)
else
_ ->
conn
|> put_flash(:error, "Failed to set up user account.")
|> redirect(external: redirect_uri(conn, redirect_uri))
end
end
def authorize(conn, params) do
app = Repo.get_by(App, client_id: params["client_id"])
available_scopes = (app && app.scopes) || []
@ -83,29 +38,16 @@ def authorize(conn, params) do
})
end
def create_authorization(conn, params), do: do_create_authorization(conn, params, nil)
defp do_create_authorization(
def create_authorization(
conn,
%{
"authorization" =>
%{
"client_id" => client_id,
"redirect_uri" => redirect_uri
} = auth_params
"authorization" => %{"redirect_uri" => redirect_uri} = auth_params
} = params,
user
opts \\ []
) do
with {_, {:ok, %User{} = user}} <-
{:get_user, (user && {:ok, user}) || Authenticator.get_user(conn, params)},
%App{} = app <- Repo.get_by(App, client_id: client_id),
true <- redirect_uri in String.split(app.redirect_uris),
scopes <- oauth_scopes(auth_params, []),
{:unsupported_scopes, []} <- {:unsupported_scopes, scopes -- app.scopes},
# Note: `scope` param is intentionally not optional in this context
{:missing_scopes, false} <- {:missing_scopes, scopes == []},
{:auth_active, true} <- {:auth_active, User.auth_active?(user)},
{:ok, auth} <- Authorization.create_authorization(app, user, scopes) do
with {:ok, auth} <-
(opts[:auth] && {:ok, opts[:auth]}) ||
do_create_authorization(conn, params, opts[:user]) do
redirect_uri = redirect_uri(conn, redirect_uri)
cond do
@ -232,6 +174,166 @@ def token_revoke(conn, %{"token" => token} = params) do
end
end
def request(conn, params) do
message =
if params["provider"] do
"Unsupported OAuth provider: #{params["provider"]}."
else
"Bad OAuth request."
end
conn
|> put_flash(:error, message)
|> redirect(to: "/")
end
def callback(%{assigns: %{ueberauth_failure: failure}} = conn, %{"redirect_uri" => redirect_uri}) do
messages = for e <- Map.get(failure, :errors, []), do: e.message
message = Enum.join(messages, "; ")
conn
|> put_flash(:error, "Failed to authenticate: #{message}.")
|> redirect(external: redirect_uri(conn, redirect_uri))
end
def callback(
conn,
%{"client_id" => client_id, "redirect_uri" => redirect_uri} = params
) do
with {:ok, registration} <- Authenticator.get_registration(conn, params) do
user = Repo.preload(registration, :user).user
auth_params = %{
"client_id" => client_id,
"redirect_uri" => redirect_uri,
"scopes" => oauth_scopes(params, nil)
}
if user do
create_authorization(
conn,
%{"authorization" => auth_params},
user: user
)
else
registration_params =
Map.merge(auth_params, %{
"nickname" => Registration.nickname(registration),
"email" => Registration.email(registration)
})
conn
|> put_session(:registration_id, registration.id)
|> redirect(to: o_auth_path(conn, :registration_details, registration_params))
end
else
_ ->
conn
|> put_flash(:error, "Failed to set up user account.")
|> redirect(external: redirect_uri(conn, redirect_uri))
end
end
def registration_details(conn, params) do
render(conn, "register.html", %{
client_id: params["client_id"],
redirect_uri: params["redirect_uri"],
scopes: oauth_scopes(params, []),
nickname: params["nickname"],
email: params["email"]
})
end
def register(conn, %{"op" => "connect"} = params) do
create_authorization_params = %{
"authorization" => Map.merge(params, %{"name" => params["auth_name"]})
}
with registration_id when not is_nil(registration_id) <- get_session_registration_id(conn),
%Registration{} = registration <- Repo.get(Registration, registration_id),
{:ok, auth} <- do_create_authorization(conn, create_authorization_params),
%User{} = user <- Repo.preload(auth, :user).user,
{:ok, _updated_registration} <- Registration.bind_to_user(registration, user) do
conn
|> put_session_registration_id(nil)
|> create_authorization(
create_authorization_params,
auth: auth
)
else
_ ->
conn
|> put_flash(:error, "Unknown error, please try again.")
|> redirect(to: o_auth_path(conn, :registration_details, params))
end
end
def register(conn, params) do
with registration_id when not is_nil(registration_id) <- get_session_registration_id(conn),
%Registration{} = registration <- Repo.get(Registration, registration_id),
{:ok, user} <- Authenticator.create_from_registration(conn, params, registration) do
conn
|> put_session_registration_id(nil)
|> create_authorization(
%{
"authorization" => %{
"client_id" => params["client_id"],
"redirect_uri" => params["redirect_uri"],
"scopes" => oauth_scopes(params, nil)
}
},
user: user
)
else
{:error, changeset} ->
message =
Enum.map(changeset.errors, fn {field, {error, _}} ->
"#{field} #{error}"
end)
|> Enum.join("; ")
message =
String.replace(
message,
"ap_id has already been taken",
"nickname has already been taken"
)
conn
|> put_flash(:error, "Error: #{message}.")
|> redirect(to: o_auth_path(conn, :registration_details, params))
_ ->
conn
|> put_flash(:error, "Unknown error, please try again.")
|> redirect(to: o_auth_path(conn, :registration_details, params))
end
end
defp do_create_authorization(
conn,
%{
"authorization" =>
%{
"client_id" => client_id,
"redirect_uri" => redirect_uri
} = auth_params
} = params,
user \\ nil
) do
with {_, {:ok, %User{} = user}} <-
{:get_user, (user && {:ok, user}) || Authenticator.get_user(conn, params)},
%App{} = app <- Repo.get_by(App, client_id: client_id),
true <- redirect_uri in String.split(app.redirect_uris),
scopes <- oauth_scopes(auth_params, []),
{:unsupported_scopes, []} <- {:unsupported_scopes, scopes -- app.scopes},
# Note: `scope` param is intentionally not optional in this context
{:missing_scopes, false} <- {:missing_scopes, scopes == []},
{:auth_active, true} <- {:auth_active, User.auth_active?(user)} do
Authorization.create_authorization(app, user, scopes)
end
end
# XXX - for whatever reason our token arrives urlencoded, but Plug.Conn should be
# decoding it. Investigate sometime.
defp fix_padding(token) do
@ -269,4 +371,9 @@ defp get_app_from_request(conn, params) do
defp redirect_uri(conn, "."), do: mastodon_api_url(conn, :login)
defp redirect_uri(_conn, redirect_uri), do: redirect_uri
defp get_session_registration_id(conn), do: get_session(conn, :registration_id)
defp put_session_registration_id(conn, registration_id),
do: put_session(conn, :registration_id, registration_id)
end

2
lib/pleroma/web/router.ex
View File

@ -208,12 +208,14 @@ defmodule Pleroma.Web.Router do
post("/authorize", OAuthController, :create_authorization)
post("/token", OAuthController, :token_exchange)
post("/revoke", OAuthController, :token_revoke)
get("/registration_details", OAuthController, :registration_details)
scope [] do
pipe_through(:browser)
get("/:provider", OAuthController, :request)
get("/:provider/callback", OAuthController, :callback)
post("/register", OAuthController, :register)
end
end

48
lib/pleroma/web/templates/o_auth/o_auth/register.html.eex Normal file
View File

@ -0,0 +1,48 @@
<%= if get_flash(@conn, :info) do %>
<p class="alert alert-info" role="alert"><%= get_flash(@conn, :info) %></p>
<% end %>
<%= if get_flash(@conn, :error) do %>
<p class="alert alert-danger" role="alert"><%= get_flash(@conn, :error) %></p>
<% end %>
<h2>Registration Details</h2>
<p>If you'd like to register a new account,
<br>
please provide the details below.</p>
<br>
<%= form_for @conn, o_auth_path(@conn, :register), [], fn f -> %>
<div class="input">
<%= label f, :nickname, "Nickname" %>
<%= text_input f, :nickname, value: @nickname %>
</div>
<div class="input">
<%= label f, :email, "Email" %>
<%= text_input f, :email, value: @email %>
</div>
<%= submit "Proceed as new user", name: "op", value: "register" %>
<br>
<br>
<br>
<p>Alternatively, sign in to connect to existing account.</p>
<div class="input">
<%= label f, :auth_name, "Name or email" %>
<%= text_input f, :auth_name %>
</div>
<div class="input">
<%= label f, :password, "Password" %>
<%= password_input f, :password %>
</div>
<%= submit "Proceed as existing user", name: "op", value: "connect" %>
<%= hidden_input f, :client_id, value: @client_id %>
<%= hidden_input f, :redirect_uri, value: @redirect_uri %>
<%= hidden_input f, :scope, value: Enum.join(@scopes, " ") %>
<% end %>

3
priv/repo/migrations/20190315101315_create_registrations.exs
View File

@ -2,7 +2,8 @@ defmodule Pleroma.Repo.Migrations.CreateRegistrations do
use Ecto.Migration
def change do
create table(:registrations) do
create table(:registrations, primary_key: false) do
add :id, :uuid, primary_key: true
add :user_id, references(:users, type: :uuid, on_delete: :delete_all)
add :provider, :string
add :uid, :string