5 files changed, 221 insertions, 12 deletions
diff --git a/docs/api/differences_in_mastoapi_responses.md b/docs/api/differences_in_mastoapi_responses.md
index 215f43155..923d94db2 100644
--- a/docs/api/differences_in_mastoapi_responses.md
+++ b/docs/api/differences_in_mastoapi_responses.md
@@ -20,6 +20,8 @@ Has these additional fields under the `pleroma` object:
 
 - `local`: true if the post was made on the local instance.
 - `conversation_id`: the ID of the conversation the status is associated with (if any)
+- `content`: a map consisting of alternate representations of the `content` property with the key being it's mimetype. Currently the only alternate representation supported is `text/plain`
+- `spoiler_text`: a map consisting of alternate representations of the `spoiler_text` property with the key being it's mimetype. Currently the only alternate representation supported is `text/plain`
 
 ## Attachments
 
diff --git a/docs/api/pleroma_api.md b/docs/api/pleroma_api.md
index 478c9d874..dbe250300 100644
--- a/docs/api/pleroma_api.md
+++ b/docs/api/pleroma_api.md
@@ -10,7 +10,29 @@ Request parameters can be passed via [query strings](https://en.wikipedia.org/wi
 * Authentication: not required
 * Params: none
 * Response: JSON
-* Example response: `{"kalsarikannit_f":"/finmoji/128px/kalsarikannit_f-128.png","perkele":"/finmoji/128px/perkele-128.png","blobdab":"/emoji/blobdab.png","happiness":"/finmoji/128px/happiness-128.png"}`
+* Example response:
+```json
+{
+  "girlpower": {
+    "tags": [
+      "Finmoji"
+    ],
+    "image_url": "/finmoji/128px/girlpower-128.png"
+  },
+  "education": {
+    "tags": [
+      "Finmoji"
+    ],
+    "image_url": "/finmoji/128px/education-128.png"
+  },
+  "finnishlove": {
+    "tags": [
+      "Finmoji"
+    ],
+    "image_url": "/finmoji/128px/finnishlove-128.png"
+  }
+}
+```
 * Note: Same data as Mastodon API’s `/api/v1/custom_emojis` but in a different format
 
 ## `/api/pleroma/follow_import`
@@ -27,14 +49,14 @@ Request parameters can be passed via [query strings](https://en.wikipedia.org/wi
 * Method: `GET`
 * Authentication: not required
 * Params: none
-* Response: Provider specific JSON, the only guaranteed parameter is `type` 
+* Response: Provider specific JSON, the only guaranteed parameter is `type`
 * Example response: `{"type": "kocaptcha", "token": "whatever", "url": "https://captcha.kotobank.ch/endpoint"}`
 
 ## `/api/pleroma/delete_account`
 ### Delete an account
 * Method `POST`
 * Authentication: required
-* Params: 
+* Params:
     * `password`: user's password
 * Response: JSON. Returns `{"status": "success"}` if the deletion was successful, `{"error": "[error message]"}` otherwise
 * Example response: `{"error": "Invalid password."}`
@@ -52,7 +74,7 @@ Request parameters can be passed via [query strings](https://en.wikipedia.org/wi
     * `confirm`
     * `captcha_solution`: optional, contains provider-specific captcha solution,
     * `captcha_token`: optional, contains provider-specific captcha token
-    * `token`: invite token required when the registerations aren't public.
+    * `token`: invite token required when the registrations aren't public.
 * Response: JSON. Returns a user object on success, otherwise returns `{"error": "error_msg"}`
 * Example response:
 ```
@@ -114,5 +136,64 @@ See [Admin-API](Admin-API.md)
 * Method `POST`
 * Authentication: required
 * Params:
-    * `id`: notifications's id
+    * `id`: notification's id
 * Response: JSON. Returns `{"status": "success"}` if the reading was successful, otherwise returns `{"error": "error_msg"}`
+
+## `/api/v1/pleroma/accounts/:id/subscribe`
+### Subscribe to receive notifications for all statuses posted by a user
+* Method `POST`
+* Authentication: required
+* Params:
+    * `id`: account id to subscribe to
+* Response: JSON, returns a mastodon relationship object on success, otherwise returns `{"error": "error_msg"}`
+* Example response:
+```json
+{
+  "id": "abcdefg",
+  "following": true,
+  "followed_by": false,
+  "blocking": false,
+  "muting": false,
+  "muting_notifications": false,
+  "subscribing": true,
+  "requested": false,
+  "domain_blocking": false,
+  "showing_reblogs": true,
+  "endorsed": false
+}
+```
+
+## `/api/v1/pleroma/accounts/:id/unsubscribe`
+### Unsubscribe to stop receiving notifications from user statuses
+* Method `POST`
+* Authentication: required
+* Params:
+    * `id`: account id to unsubscribe from
+* Response: JSON, returns a mastodon relationship object on success, otherwise returns `{"error": "error_msg"}`
+* Example response:
+```json
+{
+  "id": "abcdefg",
+  "following": true,
+  "followed_by": false,
+  "blocking": false,
+  "muting": false,
+  "muting_notifications": false,
+  "subscribing": false,
+  "requested": false,
+  "domain_blocking": false,
+  "showing_reblogs": true,
+  "endorsed": false
+}
+```
+
+## `/api/pleroma/notification_settings`
+### Updates user notification settings
+* Method `PUT`
+* Authentication: required
+* Params:
+    * `followers`: BOOLEAN field, receives notifications from followers
+    * `follows`: BOOLEAN field, receives notifications from people the user follows
+    * `remote`: BOOLEAN field, receives notifications from people on remote instances
+    * `local`: BOOLEAN field, receives notifications from people on the local instance
+* Response: JSON. Returns `{"status": "success"}` if the update was successful, otherwise returns `{"error": "error_msg"}`
diff --git a/docs/api/prometheus.md b/docs/api/prometheus.md
new file mode 100644
index 000000000..19c564e3c
--- /dev/null
+++ b/docs/api/prometheus.md
@@ -0,0 +1,22 @@
+# Prometheus Metrics
+
+Pleroma includes support for exporting metrics via the [prometheus_ex](https://github.com/deadtrickster/prometheus.ex) library.
+
+## `/api/pleroma/app_metrics`
+### Exports Prometheus application metrics
+* Method: `GET`
+* Authentication: not required
+* Params: none
+* Response: JSON
+
+## 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
+    scheme: https
+    static_configs:
+    - targets: ['pleroma.soykaf.com']
+```
diff --git a/docs/config.md b/docs/config.md
index 06d6fd757..b5ea58746 100644
--- a/docs/config.md
+++ b/docs/config.md
@@ -218,14 +218,14 @@ This section is used to configure Pleroma-FE, unless ``:managed_config`` in ``:i
   - `port`
 * `url` - a list containing the configuration for generating urls, accepts
   - `host` - the host without the scheme and a post (e.g `example.com`, not `https://example.com:2020`)
-  - `scheme` - e.g `http`, `https` 
+  - `scheme` - e.g `http`, `https`
   - `port`
   - `path`
 
 
 **Important note**: if you modify anything inside these lists, default `config.exs` values will be overwritten, which may result in breakage, to make sure this does not happen please copy the default value for the list from `config.exs` and modify/add only what you need
 
-Example: 
+Example:
 ```elixir
 config :pleroma, Pleroma.Web.Endpoint,
   url: [host: "example.com", port: 2020, scheme: "https"],
@@ -314,9 +314,13 @@ curl "http://localhost:4000/api/pleroma/admin/invite_token?admin_token=somerando
 [Pleroma Job Queue](https://git.pleroma.social/pleroma/pleroma_job_queue) configuration: a list of queues with maximum concurrent jobs.
 
 Pleroma has the following queues:
+
 * `federator_outgoing` - Outgoing federation
 * `federator_incoming` - Incoming federation
 * `mailer` - Email sender, see [`Pleroma.Mailer`](#pleroma-mailer)
+* `transmogrifier` - Transmogrifier
+* `web_push` - Web push notifications
+* `scheduled_activities` - Scheduled activities, see [`Pleroma.ScheduledActivities`](#pleromascheduledactivity)
 
 Example:
 
@@ -390,6 +394,17 @@ config :auto_linker,
   ]
 ```
 
+## Pleroma.ScheduledActivity
+
+* `daily_user_limit`: the number of scheduled activities a user is allowed to create in a single day (Default: `25`)
+* `total_user_limit`: the number of scheduled activities a user is allowed to create in total (Default: `300`)
+* `enabled`: whether scheduled activities are sent to the job queue to be executed
+
+## Pleroma.Web.Auth.Authenticator
+
+* `Pleroma.Web.Auth.PleromaAuthenticator`: default database authenticator
+* `Pleroma.Web.Auth.LDAPAuthenticator`: LDAP authentication
+
 ## :ldap
 
 Use LDAP for user authentication.  When a user logs in to the Pleroma
@@ -408,7 +423,61 @@ Pleroma account will be created with the same name as the LDAP user name.
 * `base`: LDAP base, e.g. "dc=example,dc=com"
 * `uid`: LDAP attribute name to authenticate the user, e.g. when "cn", the filter will be "cn=username,base"
 
-## Pleroma.Web.Auth.Authenticator
+## :auth
 
-* `Pleroma.Web.Auth.PleromaAuthenticator`: default database authenticator
-* `Pleroma.Web.Auth.LDAPAuthenticator`: LDAP authentication
+Authentication / authorization settings.
+
+* `auth_template`: authentication form template. By default it's `show.html` which corresponds to `lib/pleroma/web/templates/o_auth/o_auth/show.html.eex`. 
+* `oauth_consumer_template`: OAuth consumer mode authentication form template. By default it's `consumer.html` which corresponds to `lib/pleroma/web/templates/o_auth/o_auth/consumer.html.eex`.
+* `oauth_consumer_strategies`: the list of enabled OAuth consumer strategies; by default it's set by OAUTH_CONSUMER_STRATEGIES environment variable.
+
+# OAuth consumer mode
+
+OAuth consumer mode allows sign in / sign up via external OAuth providers (e.g. Twitter, Facebook, Google, Microsoft, etc.).
+Implementation is based on Ueberauth; see the list of [available strategies](https://github.com/ueberauth/ueberauth/wiki/List-of-Strategies).
+
+Note: each strategy is shipped as a separate dependency; in order to get the strategies, run `OAUTH_CONSUMER_STRATEGIES="..." mix deps.get`,
+e.g. `OAUTH_CONSUMER_STRATEGIES="twitter facebook google microsoft" mix deps.get`.
+The server should also be started with `OAUTH_CONSUMER_STRATEGIES="..." mix phx.server` in case you enable any strategies.
+
+Note: each strategy requires separate setup (on external provider side and Pleroma side). Below are the guidelines on setting up most popular strategies.  
+
+* For Twitter, [register an app](https://developer.twitter.com/en/apps), configure callback URL to https://<your_host>/oauth/twitter/callback
+
+* For Facebook, [register an app](https://developers.facebook.com/apps), configure callback URL to https://<your_host>/oauth/facebook/callback, enable Facebook Login service at https://developers.facebook.com/apps/<app_id>/fb-login/settings/
+
+* For Google, [register an app](https://console.developers.google.com), configure callback URL to https://<your_host>/oauth/google/callback
+
+* For Microsoft, [register an app](https://portal.azure.com), configure callback URL to https://<your_host>/oauth/microsoft/callback
+
+Once the app is configured on external OAuth provider side, add app's credentials and strategy-specific settings (if any — e.g. see Microsoft below) to `config/prod.secret.exs`,
+per strategy's documentation (e.g. [ueberauth_twitter](https://github.com/ueberauth/ueberauth_twitter)). Example config basing on environment variables:
+
+```
+# Twitter
+config :ueberauth, Ueberauth.Strategy.Twitter.OAuth,
+  consumer_key: System.get_env("TWITTER_CONSUMER_KEY"),
+  consumer_secret: System.get_env("TWITTER_CONSUMER_SECRET")
+
+# Facebook
+config :ueberauth, Ueberauth.Strategy.Facebook.OAuth,
+  client_id: System.get_env("FACEBOOK_APP_ID"),
+  client_secret: System.get_env("FACEBOOK_APP_SECRET"),
+  redirect_uri: System.get_env("FACEBOOK_REDIRECT_URI")
+
+# Google
+config :ueberauth, Ueberauth.Strategy.Google.OAuth,
+  client_id: System.get_env("GOOGLE_CLIENT_ID"),
+  client_secret: System.get_env("GOOGLE_CLIENT_SECRET"),
+  redirect_uri: System.get_env("GOOGLE_REDIRECT_URI")
+
+# Microsoft
+config :ueberauth, Ueberauth.Strategy.Microsoft.OAuth,
+  client_id: System.get_env("MICROSOFT_CLIENT_ID"),
+  client_secret: System.get_env("MICROSOFT_CLIENT_SECRET")
+  
+config :ueberauth, Ueberauth,
+  providers: [
+    microsoft: {Ueberauth.Strategy.Microsoft, [callback_params: []]}
+  ]
+```
diff --git a/docs/config/custom_emoji.md b/docs/config/custom_emoji.md
index e833d2080..419a7d0e2 100644
--- a/docs/config/custom_emoji.md
+++ b/docs/config/custom_emoji.md
@@ -11,8 +11,43 @@ image files (in `/priv/static/emoji/custom`): `happy.png` and `sad.png`
 
 content of `config/custom_emoji.txt`:
 ```
-happy, /emoji/custom/happy.png
-sad, /emoji/custom/sad.png
+happy, /emoji/custom/happy.png, Tag1,Tag2
+sad, /emoji/custom/sad.png, Tag1
+foo, /emoji/custom/foo.png
 ```
 
 The files should be PNG (APNG is okay with `.png` for `image/png` Content-type) and under 50kb for compatibility with mastodon.
+
+## Emoji tags (groups)
+
+Default tags are set in `config.exs`.
+```elixir
+config :pleroma, :emoji,
+  shortcode_globs: ["/emoji/custom/**/*.png"],
+  groups: [
+    Finmoji: "/finmoji/128px/*-128.png",
+    Custom: ["/emoji/*.png", "/emoji/custom/*.png"]
+  ]
+```
+
+Order of the `groups` matters, so to override default tags just put your group on top of the list. E.g:
+```elixir
+config :pleroma, :emoji,
+  shortcode_globs: ["/emoji/custom/**/*.png"],
+  groups: [
+    "Finmoji special": "/finmoji/128px/a_trusted_friend-128.png", # special file
+    "Cirno": "/emoji/custom/cirno*.png", # png files in /emoji/custom/ which start with `cirno`
+    "Special group": "/emoji/custom/special_folder/*.png", # png files in /emoji/custom/special_folder/
+    "Another group": "/emoji/custom/special_folder/*/.png", # png files in /emoji/custom/special_folder/ subfolders
+    Finmoji: "/finmoji/128px/*-128.png",
+    Custom: ["/emoji/*.png", "/emoji/custom/*.png"]
+  ]
+```
+
+Priority of tags assigns in emoji.txt and custom.txt:
+
+`tag in file > special group setting in config.exs > default setting in config.exs`
+
+Priority for globs:
+
+`special group setting in config.exs > default setting in config.exs`