Resolve merge conflict

2019-01-13 13:38:28 +03:00 · 2019-01-13 13:38:28 +03:00 · e4dc3f71ae
commit e4dc3f71ae
parent 9a6236e69d 19b6a82393
267 changed files with 4362 additions and 505 deletions
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@ -8,6 +8,7 @@ variables:
  POSTGRES_USER: postgres
  POSTGRES_PASSWORD: postgres
  DB_HOST: postgres
+  MIX_ENV: test

 cache:
  key: ${CI_COMMIT_REF_SLUG}
@ -23,15 +24,15 @@ before_script:
  - mix local.rebar --force
  - mix deps.get
  - mix compile --force
-  - MIX_ENV=test mix ecto.create
-  - MIX_ENV=test mix ecto.migrate
+  - mix ecto.create
+  - mix ecto.migrate

 lint:
  stage: lint
  script:
-    - MIX_ENV=test mix format --check-formatted
+    - mix format --check-formatted

 unit-testing:
  stage: test
  script:
-    - MIX_ENV=test mix test --trace
+    - mix test --trace
--- a/README.md
+++ b/README.md
@ -30,7 +30,7 @@ While we don't provide docker files, other people have written very good ones. T
 ### Dependencies

 * Postgresql version 9.6 or newer
-* Elixir version 1.5 or newer. If your distribution only has an old version available, check [Elixir's install page](https://elixir-lang.org/install.html) or use a tool like [asdf](https://github.com/asdf-vm/asdf).
+* Elixir version 1.7 or newer. If your distribution only has an old version available, check [Elixir's install page](https://elixir-lang.org/install.html) or use a tool like [asdf](https://github.com/asdf-vm/asdf).
 * Build-essential tools

 ### Configuration
@ -39,7 +39,7 @@ While we don't provide docker files, other people have written very good ones. T

  * Run `mix pleroma.instance gen`. This will ask you questions about your instance and generate a configuration file in `config/generated_config.exs`. Check that and copy it to either `config/dev.secret.exs` or `config/prod.secret.exs`. It will also create a `config/setup_db.psql`, which you should run as the PostgreSQL superuser (i.e., `sudo -u postgres psql -f config/setup_db.psql`). It will create the database, user, and password you gave `mix pleroma.gen.instance` earlier, as well as set up the necessary extensions in the database. PostgreSQL superuser privileges are only needed for this step.

-  * For these next steps, the default will be to run pleroma using the dev configuration file, `config/dev.secret.exs`. To run them using the prod config file, prefix each command at the shell with `MIX_ENV=prod`. For example: `MIX_ENV=prod mix phx.server`. Documentation for the config can be found at [``config/config.md``](config/config.md)
+  * For these next steps, the default will be to run pleroma using the dev configuration file, `config/dev.secret.exs`. To run them using the prod config file, prefix each command at the shell with `MIX_ENV=prod`. For example: `MIX_ENV=prod mix phx.server`. Documentation for the config can be found at [``docs/config.md``](docs/config.md)

  * Run `mix ecto.migrate` to run the database migrations. You will have to do this again after certain updates.

@ -55,9 +55,9 @@ While we don't provide docker files, other people have written very good ones. T
 Pleroma comes with two frontends. The first one, Pleroma FE, can be reached by normally visiting the site. The other one, based on the Mastodon project, can be found by visiting the /web path of your site.

 ### As systemd service (with provided .service file)
-Example .service file can be found in `installation/pleroma.service` you can put it in `/etc/systemd/system/`.
-Running `service pleroma start`
-Logs can be watched by using `journalctl -fu pleroma.service`
+Example .service file can be found in `installation/pleroma.service`. Copy this to `/etc/systemd/system/`.
+Running `systemctl enable --now pleroma.service` will run Pleroma and enable startup on boot.
+Logs can be watched by using `journalctl -fu pleroma.service`.

 ### As OpenRC service (with provided RC file)
 Copy ``installation/init.d/pleroma`` to ``/etc/init.d/pleroma``.
@ -65,7 +65,7 @@ You can add it to the services ran by default with:
 ``rc-update add pleroma``

 ### Standalone/run by other means
-Run `mix phx.server` in repository's root, it will output log into stdout/stderr
+Run `mix phx.server` in repository's root, it will output log into stdout/stderr.

 ### Using an upstream proxy for federation

--- a/config/config.exs
+++ b/config/config.exs
@ -12,7 +12,7 @@ config :pleroma, Pleroma.Repo, types: Pleroma.PostgresTypes

 config :pleroma, Pleroma.Captcha,
  enabled: false,
-  seconds_retained: 180,
+  seconds_valid: 60,
  method: Pleroma.Captcha.Kocaptcha

 config :pleroma, Pleroma.Captcha.Kocaptcha, endpoint: "https://captcha.kotobank.ch"
@ -54,6 +54,17 @@ config :pleroma, :uri_schemes,
    "xmpp"
  ]

+websocket_config = [
+  path: "/websocket",
+  serializer: [
+    {Phoenix.Socket.V1.JSONSerializer, "~> 1.0.0"},
+    {Phoenix.Socket.V2.JSONSerializer, "~> 2.0.0"}
+  ],
+  timeout: 60_000,
+  transport_log: false,
+  compress: false
+]
+
 # Configures the endpoint
 config :pleroma, Pleroma.Web.Endpoint,
  url: [host: "localhost"],
@ -62,6 +73,8 @@ config :pleroma, Pleroma.Web.Endpoint,
      {:_,
       [
         {"/api/v1/streaming", Elixir.Pleroma.Web.MastodonAPI.WebsocketHandler, []},
+         {"/socket/websocket", Phoenix.Endpoint.CowboyWebSocket,
+          {nil, {Pleroma.Web.Endpoint, Pleroma.Web.UserSocket, websocket_config}}},
         {:_, Plug.Adapters.Cowboy.Handler, {Pleroma.Web.Endpoint, []}}
       ]}
    ]
@ -78,6 +91,12 @@ config :logger, :console,
  format: "$time $metadata[$level] $message\n",
  metadata: [:request_id]

+config :logger, :ex_syslogger,
+  level: :debug,
+  ident: "Pleroma",
+  format: "$date $time $metadata[$level] $message",
+  metadata: [:request_id]
+
 config :mime, :types, %{
  "application/xml" => ["xml"],
  "application/xrd+xml" => ["xrd+xml"],
@ -98,7 +117,8 @@ config :pleroma, :instance,
  name: "Pleroma",
  email: "example@example.com",
  description: "A Pleroma instance, an alternative fediverse server",
-  limit: 5000,
+  limit: 5_000,
+  remote_limit: 100_000,
  upload_limit: 16_000_000,
  avatar_upload_limit: 2_000_000,
  background_upload_limit: 4_000_000,
@ -117,7 +137,9 @@ config :pleroma, :instance,
    "text/markdown"
  ],
  finmoji_enabled: true,
-  mrf_transparency: true
+  mrf_transparency: true,
+  autofollowed_nicknames: [],
+  max_pinned_statuses: 1

 config :pleroma, :markup,
  # XXX - unfortunately, inline images must be enabled by default right now, because
@ -137,8 +159,8 @@ config :pleroma, :fe,
  logo_mask: true,
  logo_margin: "0.1em",
  background: "/static/aurora_borealis.jpg",
-  redirect_root_no_login: "/~/main/all",
-  redirect_root_login: "/~/main/friends",
+  redirect_root_no_login: "/main/all",
+  redirect_root_login: "/main/friends",
  show_instance_panel: true,
  scope_options_enabled: false,
  formatting_options_enabled: false,
@ -163,6 +185,8 @@ config :pleroma, :mrf_rejectnonpublic,
  allow_followersonly: false,
  allow_direct: false

+config :pleroma, :mrf_hellthread, threshold: 10
+
 config :pleroma, :mrf_simple,
  media_removal: [],
  media_nsfw: [],
@ -170,13 +194,7 @@ config :pleroma, :mrf_simple,
  reject: [],
  accept: []

-config :pleroma, :media_proxy,
-  enabled: false,
-  # base_url: "https://cache.pleroma.social",
-  proxy_opts: [
-    # inline_content_types: [] | false | true,
-    # http: [:insecure]
-  ]
+config :pleroma, :media_proxy, enabled: false

 config :pleroma, :chat, enabled: true

@ -220,6 +238,46 @@ config :cors_plug,
  credentials: true,
  headers: ["Authorization", "Content-Type", "Idempotency-Key"]

+config :pleroma, Pleroma.User,
+  restricted_nicknames: [
+    ".well-known",
+    "~",
+    "about",
+    "activities",
+    "api",
+    "auth",
+    "dev",
+    "friend-requests",
+    "inbox",
+    "internal",
+    "main",
+    "media",
+    "nodeinfo",
+    "notice",
+    "oauth",
+    "objects",
+    "ostatus_subscribe",
+    "pleroma",
+    "proxy",
+    "push",
+    "registration",
+    "relay",
+    "settings",
+    "status",
+    "tag",
+    "user-search",
+    "users",
+    "web"
+  ]
+
+config :pleroma, Pleroma.Web.Federator, max_jobs: 50
+
+config :pleroma, Pleroma.Web.Federator.RetryQueue,
+  enabled: false,
+  max_jobs: 20,
+  initial_timeout: 30,
+  max_retries: 5
+
 # 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"
--- a/config/test.exs
+++ b/config/test.exs
@ -9,7 +9,8 @@ config :pleroma, Pleroma.Web.Endpoint,

 # Disable captha for tests
 config :pleroma, Pleroma.Captcha,
-  enabled: true,
+  # It should not be enabled for automatic tests
+  enabled: false,
  # A fake captcha service for tests
  method: Pleroma.Captcha.Mock

--- a/docs/Admin-API.md
+++ b/docs/Admin-API.md
@ -0,0 +1,100 @@
+# Admin API
+Authentication is required and the user must be an admin.
+
+## `/api/pleroma/admin/user`
+### Remove a user
+* Method `DELETE`
+* Params:
+    * `nickname`
+* Response: User’s nickname
+### Create a user
+* Method: `POST`
+* Params:
+    * `nickname`
+    * `email`
+    * `password`
+* Response: User’s nickname
+
+## `/api/pleroma/admin/users/tag`
+### Tag a list of users
+* Method: `PUT`
+* Params:
+    * `nickname`
+    * `tags`
+### Untag a list of users
+* Method: `DELETE`
+* Params:
+    * `nickname`
+    * `tags`
+
+## `/api/pleroma/admin/permission_group/:nickname`
+### Get user user permission groups membership
+* Method: `GET`
+* Params: none
+* Response:
+```JSON
+{
+	"is_moderator": bool,
+	"is_admin": bool
+}
+```
+
+## `/api/pleroma/admin/permission_group/:nickname/:permission_group`
+Note: Available `:permission_group` is currently moderator and admin. 404 is returned when the permission group doesn’t exist.
+
+### Get user user permission groups membership
+* Method: `GET`
+* Params: none
+* Response:
+```JSON
+{
+	"is_moderator": bool,
+	"is_admin": bool
+}
+```
+### Add user in permission group
+* Method: `POST`
+* Params: none
+* Response:
+    * On failure: ``{"error": "…"}``
+    * On success: JSON of the ``user.info``
+### Remove user from permission group
+* Method: `DELETE`
+* Params: none
+* Response:
+    * On failure: ``{"error": "…"}``
+    * On success: JSON of the ``user.info``
+* Note: An admin cannot revoke their own admin status.
+
+## `/api/pleroma/admin/relay`
+### Follow a Relay
+* Methods: `POST`
+* Params:
+    * `relay_url`
+* Response:
+    * On success: URL of the followed relay
+### Unfollow a Relay
+* Methods: `DELETE`
+* Params:
+    * `relay_url`
+* Response:
+    * On success: URL of the unfollowed relay
+
+## `/api/pleroma/admin/invite_token`
+### Get a account registeration invite token
+* Methods: `GET`
+* Params: none
+* Response: invite token (base64 string)
+
+## `/api/pleroma/admin/email_invite`
+### Sends registration invite via email
+* Methods: `POST`
+* Params:
+    * `email`
+    * `name`, optionnal
+
+## `/api/pleroma/admin/password_reset`
+### Get a password reset token for a given nickname
+* Methods: `GET`
+* Params: none
+* Response: password reset token (base64 string)
--- a/docs/Pleroma-API.md
+++ b/docs/Pleroma-API.md
@ -0,0 +1,98 @@
+# Authentication
+
+Requests that require it can be authenticated with [an OAuth token](https://tools.ietf.org/html/rfc6749), the `_pleroma_key` cookie, or [HTTP Basic Authentication](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Authorization).
+
+# Request parameters
+
+Request parameters can be passed via [query strings](https://en.wikipedia.org/wiki/Query_string) or as [form data](https://www.w3.org/TR/html401/interact/forms.html). Files must be uploaded as `multipart/form-data`.
+
+# Endpoints
+
+## `/api/pleroma/emoji`
+### Lists the custom emoji on that server.
+* Method: `GET`
+* 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"}`
+
+## `/api/pleroma/follow_import`
+### Imports your follows, for example from a Mastodon CSV file.
+* Method: `POST`
+* Authentication: required
+* Params:
+    * `list`: STRING or FILE containing a whitespace-separated list of accounts to follow
+* Response: HTTP 200 on success, 500 on error
+* Note: Users that can't be followed are silently skipped.
+
+## `/api/pleroma/captcha`
+### Get a new captcha
+* Method: `GET`
+* Authentication: not required
+* Params: none
+* 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: 
+    * `password`: user's password
+* Response: JSON. Returns `{"status": "success"}` if the deletion was successful, `{"error": "[error message]"}` otherwise
+* Example response: `{"error": "Invalid password."}`
+
+## `/api/account/register`
+### Register a new user
+* Method `POST`
+* Authentication: not required
+* Params:
+    * `nickname`
+    * `fullname`
+    * `bio`
+    * `email`
+    * `password`
+    * `confirm`
+    * `captcha_solution`: optional, contains provider-specific captcha solution,
+    * `captcha_token`: optional, contains provider-specific captcha token
+* Response: JSON. Returns a user object on success, otherwise returns `{"error": "error_msg"}`
+* Example response:
+```
+{
+	"background_image": null,
+	"cover_photo": "https://pleroma.soykaf.com/images/banner.png",
+	"created_at": "Tue Dec 18 16:55:56 +0000 2018",
+	"default_scope": "public",
+	"description": "blushy-crushy fediverse idol + pleroma dev\nlet's be friends \nぷれろまの生徒会長。謎の外人。日本語OK. \n公主病.",
+	"description_html": "blushy-crushy fediverse idol + pleroma dev.<br />let's be friends <br />ぷれろまの生徒会長。謎の外人。日本語OK. <br />公主病.",
+	"favourites_count": 0,
+	"fields": [],
+	"followers_count": 0,
+	"following": false,
+	"follows_you": false,
+	"friends_count": 0,
+	"id": 6,
+	"is_local": true,
+	"locked": false,
+	"name": "lain",
+	"name_html": "lain",
+	"no_rich_text": false,
+	"pleroma": {
+		"tags": []
+	},
+	"profile_image_url": "https://pleroma.soykaf.com/images/avi.png",
+	"profile_image_url_https": "https://pleroma.soykaf.com/images/avi.png",
+	"profile_image_url_original": "https://pleroma.soykaf.com/images/avi.png",
+	"profile_image_url_profile_size": "https://pleroma.soykaf.com/images/avi.png",
+	"rights": {
+		"delete_others_notice": false
+	},
+	"screen_name": "lain",
+	"statuses_count": 0,
+	"statusnet_blocking": false,
+	"statusnet_profile_url": "https://pleroma.soykaf.com/users/lain"
+}
+```
+
+## `/api/pleroma/admin/`…
+See [Admin-API](Admin-API.md)
--- a/config/config.md
+++ b/config/config.md
@ -32,7 +32,7 @@ This filter replaces the filename (not the path) of an upload. For complete obfu

 ## Pleroma.Mailer
 * `adapter`: one of the mail adapters listed in [Swoosh readme](https://github.com/swoosh/swoosh#adapters), or `Swoosh.Adapters.Local` for in-memory mailbox.
-* `api_key` / `password` and / or other adapter-specific settings, per the above documentation. 
+* `api_key` / `password` and / or other adapter-specific settings, per the above documentation.

 An example for Sendgrid adapter:

@ -63,12 +63,14 @@ config :pleroma, Pleroma.Mailer,
 * `email`: Email used to reach an Administrator/Moderator of the instance
 * `description`: The instance’s description, can be seen in nodeinfo and ``/api/v1/instance``
 * `limit`: Posts character limit (CW/Subject included in the counter)
+* `remote_limit`: Hard character limit beyond which remote posts will be dropped.
 * `upload_limit`: File size limit of uploads (except for avatar, background, banner)
 * `avatar_upload_limit`: File size limit of user’s profile avatars
 * `background_upload_limit`: File size limit of user’s profile backgrounds
 * `banner_upload_limit`: File size limit of user’s profile banners
 * `registrations_open`: Enable registrations for anyone, invitations can be enabled when false.
 * `invites_enabled`: Enable user invitations for admins (depends on `registrations_open: false`).
+* `account_activation_required`: Require users to confirm their emails before signing in.
 * `federating`: Enable federation with other instances
 * `allow_relay`: Enable Pleroma’s Relay, which makes it possible to follow a whole instance
 * `rewrite_policy`: Message Rewrite Policy, either one or a list. Here are the ones available by default:
@ -91,6 +93,12 @@ config :pleroma, Pleroma.Mailer,
 * `always_show_subject_input`: When set to false, auto-hide the subject field when it's empty.
 * `extended_nickname_format`: Set to `true` to use extended local nicknames format (allows underscores/dashes). This will break federation with
    older software for theses nicknames.
+* `max_pinned_statuses`: The maximum number of pinned statuses. `0` will disable the feature.
+* `autofollowed_nicknames`: Set to nicknames of (local) users that every new user should automatically follow.
+
+## :logger
+* `backends`: `:console` is used to send logs to stdout, `{ExSyslogger, :ex_syslogger}` to log to syslog
+See: [logger’s documentation](https://hexdocs.pm/logger/Logger.html) and [ex_syslogger’s documentation](https://hexdocs.pm/ex_syslogger/)

 ## :fe
 This section is used to configure Pleroma-FE, unless ``:managed_config`` in ``:instance`` is set to false.
@ -120,6 +128,9 @@ This section is used to configure Pleroma-FE, unless ``:managed_config`` in ``:i
 * `allow_followersonly`: whether to allow followers-only posts
 * `allow_direct`: whether to allow direct messages

+## :mrf_hellthread
+* `threshold`: Number of mentioned users after which the message gets discarded as spam
+
 ## :media_proxy
 * `enabled`: Enables proxying of remote media to the instance’s proxy
 * `base_url`: The base URL to access a user-uploaded file. Useful when you want to proxy the media files via another host/CDN fronts.
@ -167,7 +178,7 @@ Web Push Notifications configuration. You can use the mix task `mix web_push.gen
 ## Pleroma.Captcha
 * `enabled`: Whether the captcha should be shown on registration
 * `method`: The method/service to use for captcha
-* `seconds_retained`: The time in seconds for which the captcha is valid (stored in the cache)
+* `seconds_valid`: The time in seconds for which the captcha is valid

 ### Pleroma.Captcha.Kocaptcha
 Kocaptcha is a very simple captcha service with a single API endpoint,
@ -188,3 +199,14 @@ You can then do
 ```
 curl "http://localhost:4000/api/pleroma/admin/invite_token?admin_token=somerandomtoken"
 ```
+
+## Pleroma.Web.Federator
+
+* `max_jobs`: The maximum amount of parallel federation jobs running at the same time.
+
+## Pleroma.Web.Federator.RetryQueue
+
+* `enabled`: If set to `true`, failed federation jobs will be retried
+* `max_jobs`: The maximum amount of parallel federation jobs running at the same time.
+* `initial_timeout`: The initial timeout in seconds
+* `max_retries`: The maximum number of times a federation job is retried
--- a/installation/pleroma.service
+++ b/installation/pleroma.service
@ -21,6 +21,8 @@ ProtectSystem=full
 PrivateDevices=false
 ; Ensures that the service process and all its children can never gain new privileges through execve().
 NoNewPrivileges=true
+; Drops the sysadmin capability from the daemon.
+CapabilityBoundingSet=~CAP_SYS_ADMIN

 [Install]
 WantedBy=multi-user.target
--- a/installation/pleroma.vcl
+++ b/installation/pleroma.vcl
@ -14,43 +14,45 @@ acl purge {
 sub vcl_recv {
    # Redirect HTTP to HTTPS
    if (std.port(server.ip) != 443) {
-        set req.http.x-redir = "https://" + req.http.host + req.url;
-        return (synth(750, ""));
+      set req.http.x-redir = "https://" + req.http.host + req.url;
+      return (synth(750, ""));
+    }
+
+    # CHUNKED SUPPORT
+    if (req.http.Range ~ "bytes=") {
+      set req.http.x-range = req.http.Range;
    }

    # Pipe if WebSockets request is coming through
    if (req.http.upgrade ~ "(?i)websocket") {
-        return (pipe);
+      return (pipe);
    }

    # Allow purging of the cache
    if (req.method == "PURGE") {
-        if (!client.ip ~ purge) {
-          return(synth(405,"Not allowed."));
-        }
-        return(purge);
+      if (!client.ip ~ purge) {
+        return(synth(405,"Not allowed."));
+      }
+      return(purge);
    }

    # Pleroma MediaProxy - strip headers that will affect caching
    if (req.url ~ "^/proxy/") {
-        unset req.http.Cookie;
-        unset req.http.Authorization;
-        unset req.http.Accept;
-        return (hash);
+      unset req.http.Cookie;
+      unset req.http.Authorization;
+      unset req.http.Accept;
+      return (hash);
    }

    # Strip headers that will affect caching from all other static content
    # This also permits caching of individual toots and AP Activities
    if ((req.url ~ "^/(media|static)/") ||
-    (req.url ~ "(?i)\.(html|js|css|jpg|jpeg|png|gif|gz|tgz|bz2|tbz|mp3|ogg|svg|swf|ttf|pdf|woff|woff2)$"))
+    (req.url ~ "(?i)\.(html|js|css|jpg|jpeg|png|gif|gz|tgz|bz2|tbz|mp3|mp4|ogg|webm|svg|swf|ttf|pdf|woff|woff2)$"))
    {
      unset req.http.Cookie;
      unset req.http.Authorization;
      return (hash);
    }
-
-    # Everything else should just be piped to Pleroma
-    return (pipe);
 }

 sub vcl_backend_response {
@ -59,8 +61,11 @@ sub vcl_backend_response {
      set beresp.do_gzip = true;
    }

-    # etags are bad
-    unset beresp.http.etag;
+    # CHUNKED SUPPORT
+    if (bereq.http.x-range ~ "bytes=" && beresp.status == 206) {
+      set beresp.ttl = 10m;
+      set beresp.http.CR = beresp.http.content-range;
+    }

    # Don't cache objects that require authentication
    if (beresp.http.Authorization && !beresp.http.Cache-Control ~ "public") {
@ -81,9 +86,9 @@ sub vcl_backend_response {

    # Do not cache redirects and errors
    if ((beresp.status >= 300) && (beresp.status < 500)) {
-        set beresp.uncacheable = true;
-        set beresp.ttl = 30s;
-        return (deliver);
+      set beresp.uncacheable = true;
+      set beresp.ttl = 30s;
+      return (deliver);
    }

    # Pleroma MediaProxy internally sets headers properly
@ -92,14 +97,12 @@ sub vcl_backend_response {
    }

    # Strip cache-restricting headers from Pleroma on static content that we want to cache
-    # Also enable streaming of cached content to clients (no waiting for Varnish to complete backend fetch)
-    if (bereq.url ~ "(?i)\.(js|css|jpg|jpeg|png|gif|gz|tgz|bz2|tbz|mp3|ogg|svg|swf|ttf|pdf|woff|woff2)$")
+    if (bereq.url ~ "(?i)\.(js|css|jpg|jpeg|png|gif|gz|tgz|bz2|tbz|mp3|mp4|ogg|webm|svg|swf|ttf|pdf|woff|woff2)$")
    {
      unset beresp.http.set-cookie;
      unset beresp.http.Cache-Control;
      unset beresp.http.x-request-id;
      set beresp.http.Cache-Control = "public, max-age=86400";
-      set beresp.do_stream = true;
    }
 }

@ -115,7 +118,30 @@ sub vcl_synth {
 # Ensure WebSockets through the pipe do not close prematurely
 sub vcl_pipe {
    if (req.http.upgrade) {
-        set bereq.http.upgrade = req.http.upgrade;
-        set bereq.http.connection = req.http.connection;
+      set bereq.http.upgrade = req.http.upgrade;
+      set bereq.http.connection = req.http.connection;
+    }
+}
+
+sub vcl_hash {
+    # CHUNKED SUPPORT
+    if (req.http.x-range ~ "bytes=") {
+      hash_data(req.http.x-range);
+      unset req.http.Range;
+    }
+}
+
+sub vcl_backend_fetch {
+    # CHUNKED SUPPORT
+    if (bereq.http.x-range) {
+      set bereq.http.Range = bereq.http.x-range;
+    }
+}
+
+sub vcl_deliver {
+    # CHUNKED SUPPORT
+    if (resp.http.CR) {
+      set resp.http.Content-Range = resp.http.CR;
+      unset resp.http.CR;
    }
 }
--- a/lib/mix/tasks/pleroma/common.ex
+++ b/lib/mix/tasks/pleroma/common.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Mix.Tasks.Pleroma.Common do
  @doc "Common functions to be reused in mix tasks"
  def start_pleroma do
--- a/lib/mix/tasks/pleroma/instance.ex
+++ b/lib/mix/tasks/pleroma/instance.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Mix.Tasks.Pleroma.Instance do
  use Mix.Task
  alias Mix.Tasks.Pleroma.Common
@ -71,7 +75,7 @@ defmodule Mix.Tasks.Pleroma.Instance do
      name =
        Common.get_option(
          options,
-          :name,
+          :instance_name,
          "What is the name of your instance? (e.g. Pleroma/Soykaf)"
        )

--- a/lib/mix/tasks/pleroma/relay.ex
+++ b/lib/mix/tasks/pleroma/relay.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Mix.Tasks.Pleroma.Relay do
  use Mix.Task
  alias Pleroma.Web.ActivityPub.Relay
--- a/lib/mix/tasks/pleroma/uploads.ex
+++ b/lib/mix/tasks/pleroma/uploads.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Mix.Tasks.Pleroma.Uploads do
  use Mix.Task
  alias Pleroma.{Upload, Uploaders.Local}
--- a/lib/mix/tasks/pleroma/user.ex
+++ b/lib/mix/tasks/pleroma/user.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Mix.Tasks.Pleroma.User do
  use Mix.Task
  import Ecto.Changeset
@ -18,6 +22,7 @@ defmodule Mix.Tasks.Pleroma.User do
  - `--password PASSWORD` - the user's password
  - `--moderator`/`--no-moderator` - whether the user is a moderator
  - `--admin`/`--no-admin` - whether the user is an admin
+  - `-y`, `--assume-yes`/`--no-assume-yes` - whether to assume yes to all questions 

  ## Generate an invite link.

@ -57,7 +62,11 @@ defmodule Mix.Tasks.Pleroma.User do
          bio: :string,
          password: :string,
          moderator: :boolean,
-          admin: :boolean
+          admin: :boolean,
+          assume_yes: :boolean
+        ],
+        aliases: [
+          y: :assume_yes
        ]
      )

@ -75,6 +84,7 @@ defmodule Mix.Tasks.Pleroma.User do

    moderator? = Keyword.get(options, :moderator, false)
    admin? = Keyword.get(options, :admin, false)
+    assume_yes? = Keyword.get(options, :assume_yes, false)

    Mix.shell().info("""
    A user will be created with the following information:
@ -89,7 +99,7 @@ defmodule Mix.Tasks.Pleroma.User do
      - admin: #{if(admin?, do: "true", else: "false")}
    """)

-    proceed? = Mix.shell().yes?("Continue?")
+    proceed? = assume_yes? or Mix.shell().yes?("Continue?")

    unless not proceed? do
      Common.start_pleroma()
@ -103,8 +113,8 @@ defmodule Mix.Tasks.Pleroma.User do
        bio: bio
      }

-      user = User.register_changeset(%User{}, params)
-      Repo.insert!(user)
+      changeset = User.register_changeset(%User{}, params, confirmed: true)
+      {:ok, _user} = User.register(changeset)

      Mix.shell().info("User #{nickname} created")

--- a/lib/pleroma/PasswordResetToken.ex
+++ b/lib/pleroma/PasswordResetToken.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.PasswordResetToken do
  use Ecto.Schema

--- a/lib/pleroma/activity.ex
+++ b/lib/pleroma/activity.ex
@ -1,8 +1,14 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Activity do
  use Ecto.Schema
  alias Pleroma.{Repo, Activity, Notification}
  import Ecto.Query

+  @type t :: %__MODULE__{}
+
  # https://github.com/tootsuite/mastodon/blob/master/app/models/notification.rb#L19
  @mastodon_notification_types %{
    "Create" => "mention",
--- a/lib/pleroma/application.ex
+++ b/lib/pleroma/application.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Application do
  use Application
  import Supervisor.Spec
@ -25,6 +29,16 @@ defmodule Pleroma.Application do
        supervisor(Pleroma.Repo, []),
        worker(Pleroma.Emoji, []),
        worker(Pleroma.Captcha, []),
+        worker(
+          Cachex,
+          [
+            :used_captcha_cache,
+            [
+              ttl_interval: :timer.seconds(Pleroma.Config.get!([Pleroma.Captcha, :seconds_valid]))
+            ]
+          ],
+          id: :cachex_used_captcha_cache
+        ),
        worker(
          Cachex,
          [
@ -49,6 +63,27 @@ defmodule Pleroma.Application do
          ],
          id: :cachex_object
        ),
+        worker(
+          Cachex,
+          [
+            :rich_media_cache,
+            [
+              default_ttl: :timer.minutes(120),
+              limit: 5000
+            ]
+          ],
+          id: :cachex_rich_media
+        ),
+        worker(
+          Cachex,
+          [
+            :scrubber_cache,
+            [
+              limit: 2500
+            ]
+          ],
+          id: :cachex_scrubber
+        ),
        worker(
          Cachex,
          [
--- a/lib/pleroma/captcha/captcha.ex
+++ b/lib/pleroma/captcha/captcha.ex
@ -1,7 +1,13 @@
-defmodule Pleroma.Captcha do
-  use GenServer
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only

-  @ets_options [:ordered_set, :private, :named_table, {:read_concurrency, true}]
+defmodule Pleroma.Captcha do
+  alias Plug.Crypto.KeyGenerator
+  alias Plug.Crypto.MessageEncryptor
+  alias Calendar.DateTime
+
+  use GenServer

  @doc false
  def start_link() do
@ -10,14 +16,6 @@ defmodule Pleroma.Captcha do

  @doc false
  def init(_) do
-    # Create a ETS table to store captchas
-    ets_name = Module.concat(method(), Ets)
-    ^ets_name = :ets.new(Module.concat(method(), Ets), @ets_options)
-
-    # Clean up old captchas every few minutes
-    seconds_retained = Pleroma.Config.get!([__MODULE__, :seconds_retained])
-    Process.send_after(self(), :cleanup, 1000 * seconds_retained)
-
    {:ok, nil}
  end

@ -31,8 +29,8 @@ defmodule Pleroma.Captcha do
  @doc """
  Ask the configured captcha service to validate the captcha
  """
-  def validate(token, captcha) do
-    GenServer.call(__MODULE__, {:validate, token, captcha})
+  def validate(token, captcha, answer_data) do
+    GenServer.call(__MODULE__, {:validate, token, captcha, answer_data})
  end

  @doc false
@ -42,24 +40,71 @@ defmodule Pleroma.Captcha do
    if !enabled do
      {:reply, %{type: :none}, state}
    else
-      {:reply, method().new(), state}
+      new_captcha = method().new()
+
+      secret_key_base = Pleroma.Config.get!([Pleroma.Web.Endpoint, :secret_key_base])
+
+      # This make salt a little different for two keys
+      token = new_captcha[:token]
+      secret = KeyGenerator.generate(secret_key_base, token <> "_encrypt")
+      sign_secret = KeyGenerator.generate(secret_key_base, token <> "_sign")
+      # Basicallty copy what Phoenix.Token does here, add the time to
+      # the actual data and make it a binary to then encrypt it
+      encrypted_captcha_answer =
+        %{
+          at: DateTime.now_utc(),
+          answer_data: new_captcha[:answer_data]
+        }
+        |> :erlang.term_to_binary()
+        |> MessageEncryptor.encrypt(secret, sign_secret)
+
+      {
+        :reply,
+        # Repalce the answer with the encrypted answer
+        %{new_captcha | answer_data: encrypted_captcha_answer},
+        state
+      }
    end
  end

  @doc false
-  def handle_call({:validate, token, captcha}, _from, state) do
-    {:reply, method().validate(token, captcha), state}
-  end
+  def handle_call({:validate, token, captcha, answer_data}, _from, state) do
+    secret_key_base = Pleroma.Config.get!([Pleroma.Web.Endpoint, :secret_key_base])
+    secret = KeyGenerator.generate(secret_key_base, token <> "_encrypt")
+    sign_secret = KeyGenerator.generate(secret_key_base, token <> "_sign")

-  @doc false
-  def handle_info(:cleanup, state) do
-    :ok = method().cleanup()
+    # If the time found is less than (current_time - seconds_valid), then the time has already passed.
+    # Later we check that the time found is more than the presumed invalidatation time, that means
+    # that the data is still valid and the captcha can be checked
+    seconds_valid = Pleroma.Config.get!([Pleroma.Captcha, :seconds_valid])
+    valid_if_after = DateTime.subtract!(DateTime.now_utc(), seconds_valid)

-    seconds_retained = Pleroma.Config.get!([__MODULE__, :seconds_retained])
-    # Schedule the next clenup
-    Process.send_after(self(), :cleanup, 1000 * seconds_retained)
+    result =
+      with {:ok, data} <- MessageEncryptor.decrypt(answer_data, secret, sign_secret),
+           %{at: at, answer_data: answer_md5} <- :erlang.binary_to_term(data) do
+        try do
+          if DateTime.before?(at, valid_if_after), do: throw({:error, "CAPTCHA expired"})

-    {:noreply, state}
+          if not is_nil(Cachex.get!(:used_captcha_cache, token)),
+            do: throw({:error, "CAPTCHA already used"})
+
+          res = method().validate(token, captcha, answer_md5)
+          # Throw if an error occurs
+          if res != :ok, do: throw(res)
+
+          # Mark this captcha as used
+          {:ok, _} =
+            Cachex.put(:used_captcha_cache, token, true, ttl: :timer.seconds(seconds_valid))
+
+          :ok
+        catch
+          :throw, e -> e
+        end
+      else
+        _ -> {:error, "Invalid answer data"}
+      end
+
+    {:reply, result, state}
  end

  defp method, do: Pleroma.Config.get!([__MODULE__, :method])
--- a/lib/pleroma/captcha/captcha_service.ex
+++ b/lib/pleroma/captcha/captcha_service.ex
@ -1,12 +1,21 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Captcha.Service do
  @doc """
  Request new captcha from a captcha service.

  Returns:

-  Service-specific data for using the newly created captcha
+  Type/Name of the service, the token to identify the captcha,
+  the data of the answer and service-specific data to use the newly created captcha
  """
-  @callback new() :: map
+  @callback new() :: %{
+              type: atom(),
+              token: String.t(),
+              answer_data: any()
+            }

  @doc """
  Validated the provided captcha solution.
@ -14,15 +23,15 @@ defmodule Pleroma.Captcha.Service do
  Arguments:
  * `token` the captcha is associated with
  * `captcha` solution of the captcha to validate
+  * `answer_data` is the data needed to validate the answer (presumably encrypted)

  Returns:

  `true` if captcha is valid, `false` if not
  """
-  @callback validate(token :: String.t(), captcha :: String.t()) :: boolean
-
-  @doc """
-  This function is called periodically to clean up old captchas
-  """
-  @callback cleanup() :: :ok
+  @callback validate(
+              token :: String.t(),
+              captcha :: String.t(),
+              answer_data :: any()
+            ) :: :ok | {:error, String.t()}
 end
--- a/lib/pleroma/captcha/kocaptcha.ex
+++ b/lib/pleroma/captcha/kocaptcha.ex
@ -1,11 +1,11 @@
-defmodule Pleroma.Captcha.Kocaptcha do
-  alias Calendar.DateTime
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only

+defmodule Pleroma.Captcha.Kocaptcha do
  alias Pleroma.Captcha.Service
  @behaviour Service

-  @ets __MODULE__.Ets
-
  @impl Service
  def new() do
    endpoint = Pleroma.Config.get!([__MODULE__, :endpoint])
@ -17,51 +17,21 @@ defmodule Pleroma.Captcha.Kocaptcha do
      {:ok, res} ->
        json_resp = Poison.decode!(res.body)

-        token = json_resp["token"]
-
-        true =
-          :ets.insert(
-            @ets,
-            {token, json_resp["md5"], DateTime.now_utc() |> DateTime.Format.unix()}
-          )
-
-        %{type: :kocaptcha, token: token, url: endpoint <> json_resp["url"]}
-    end
-  end
-
-  @impl Service
-  def validate(token, captcha) do
-    with false <- is_nil(captcha),
-         [{^token, saved_md5, _}] <- :ets.lookup(@ets, token),
-         true <- :crypto.hash(:md5, captcha) |> Base.encode16() == String.upcase(saved_md5) do
-      # Clear the saved value
-      :ets.delete(@ets, token)
-
-      true
-    else
-      _ -> false
-    end
-  end
-
-  @impl Service
-  def cleanup() do
-    seconds_retained = Pleroma.Config.get!([Pleroma.Captcha, :seconds_retained])
-    # If the time in ETS is less than current_time - seconds_retained, then the time has
-    # already passed
-    delete_after =
-      DateTime.subtract!(DateTime.now_utc(), seconds_retained) |> DateTime.Format.unix()
-
-    :ets.select_delete(
-      @ets,
-      [
-        {
-          {:_, :_, :"$1"},
-          [{:<, :"$1", {:const, delete_after}}],
-          [true]
+        %{
+          type: :kocaptcha,
+          token: json_resp["token"],
+          url: endpoint <> json_resp["url"],
+          answer_data: json_resp["md5"]
        }
-      ]
-    )
+    end
+  end

-    :ok
+  @impl Service
+  def validate(_token, captcha, answer_data) do
+    # Here the token is unsed, because the unencrypted captcha answer is just passed to method
+    if not is_nil(captcha) and
+         :crypto.hash(:md5, captcha) |> Base.encode16() == String.upcase(answer_data),
+       do: :ok,
+       else: {:error, "Invalid CAPTCHA"}
  end
 end
--- a/lib/pleroma/config.ex
+++ b/lib/pleroma/config.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Config do
  defmodule Error do
    defexception [:message]
--- a/lib/pleroma/emails/mailer.ex
+++ b/lib/pleroma/emails/mailer.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Mailer do
  use Swoosh.Mailer, otp_app: :pleroma
 end
--- a/lib/pleroma/emails/user_email.ex
+++ b/lib/pleroma/emails/user_email.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.UserEmail do
  @moduledoc "User emails"

@ -15,6 +19,7 @@ defmodule Pleroma.UserEmail do

  defp recipient(email, nil), do: email
  defp recipient(email, name), do: {name, email}
+  defp recipient(%Pleroma.User{} = user), do: recipient(user.email, user.name)

  def password_reset_email(user, password_reset_token) when is_binary(password_reset_token) do
    password_reset_url =
@ -32,7 +37,7 @@ defmodule Pleroma.UserEmail do
    """

    new()
-    |> to(recipient(user.email, user.name))
+    |> to(recipient(user))
    |> from(sender())
    |> subject("Password reset")
    |> html_body(html_body)
@ -63,4 +68,26 @@ defmodule Pleroma.UserEmail do
    |> subject("Invitation to #{instance_name()}")
    |> html_body(html_body)
  end
+
+  def account_confirmation_email(user) do
+    confirmation_url =
+      Router.Helpers.confirm_email_url(
+        Endpoint,
+        :confirm_email,
+        user.id,
+        to_string(user.info.confirmation_token)
+      )
+
+    html_body = """
+    <h3>Welcome to #{instance_name()}!</h3>
+    <p>Email confirmation is required to activate the account.</p>
+    <p>Click the following link to proceed: <a href="#{confirmation_url}">activate your account</a>.</p>
+    """
+
+    new()
+    |> to(recipient(user))
+    |> from(sender())
+    |> subject("#{instance_name()} account confirmation")
+    |> html_body(html_body)
+  end
 end
--- a/lib/pleroma/emoji.ex
+++ b/lib/pleroma/emoji.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Emoji do
  @moduledoc """
  The emojis are loaded from:
--- a/lib/pleroma/filter.ex
+++ b/lib/pleroma/filter.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Filter do
  use Ecto.Schema
  import Ecto.{Changeset, Query}
--- a/lib/pleroma/formatter.ex
+++ b/lib/pleroma/formatter.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Formatter do
  alias Pleroma.User
  alias Pleroma.Web.MediaProxy
@ -7,6 +11,9 @@ defmodule Pleroma.Formatter do
  @tag_regex ~r/((?<=[^&])|\A)(\#)(\w+)/u
  @markdown_characters_regex ~r/(`|\*|_|{|}|[|]|\(|\)|#|\+|-|\.|!)/

+  # Modified from https://www.w3.org/TR/html5/forms.html#valid-e-mail-address
+  @mentions_regex ~r/@[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]*@?[a-zA-Z0-9_-](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*/u
+
  def parse_tags(text, data \\ %{}) do
    Regex.scan(@tag_regex, text)
    |> Enum.map(fn ["#" <> tag = full_tag | _] -> {full_tag, String.downcase(tag)} end)
@ -17,16 +24,15 @@ defmodule Pleroma.Formatter do
        end).()
  end

+  @doc "Parses mentions text and returns list {nickname, user}."
+  @spec parse_mentions(binary()) :: list({binary(), User.t()})
  def parse_mentions(text) do
-    # Modified from https://www.w3.org/TR/html5/forms.html#valid-e-mail-address
-    regex =
-      ~r/@[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]*@?[a-zA-Z0-9_-](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*/u
-
-    Regex.scan(regex, text)
+    Regex.scan(@mentions_regex, text)
    |> List.flatten()
    |> Enum.uniq()
-    |> Enum.map(fn "@" <> match = full_match ->
-      {full_match, User.get_cached_by_nickname(match)}
+    |> Enum.map(fn nickname ->
+      with nickname <- String.trim_leading(nickname, "@"),
+           do: {"@" <> nickname, User.get_cached_by_nickname(nickname)}
    end)
    |> Enum.filter(fn {_match, user} -> user end)
  end
--- a/lib/pleroma/gopher/server.ex
+++ b/lib/pleroma/gopher/server.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Gopher.Server do
  use GenServer
  require Logger
--- a/lib/pleroma/html.ex
+++ b/lib/pleroma/html.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.HTML do
  alias HtmlSanitizeEx.Scrubber

@ -11,8 +15,11 @@ defmodule Pleroma.HTML do
  end

  def filter_tags(html, nil) do
-    get_scrubbers()
-    |> Enum.reduce(html, fn scrubber, html ->
+    filter_tags(html, get_scrubbers())
+  end
+
+  def filter_tags(html, scrubbers) when is_list(scrubbers) do
+    Enum.reduce(scrubbers, html, fn scrubber, html ->
      filter_tags(html, scrubber)
    end)
  end
@ -20,6 +27,37 @@ defmodule Pleroma.HTML do
  def filter_tags(html, scrubber), do: Scrubber.scrub(html, scrubber)
  def filter_tags(html), do: filter_tags(html, nil)
  def strip_tags(html), do: Scrubber.scrub(html, Scrubber.StripTags)
+
+  def get_cached_scrubbed_html_for_object(content, scrubbers, object, module) do
+    key = "#{module}#{generate_scrubber_signature(scrubbers)}|#{object.id}"
+    Cachex.fetch!(:scrubber_cache, key, fn _key -> ensure_scrubbed_html(content, scrubbers) end)
+  end
+
+  def get_cached_stripped_html_for_object(content, object, module) do
+    get_cached_scrubbed_html_for_object(
+      content,
+      HtmlSanitizeEx.Scrubber.StripTags,
+      object,
+      module
+    )
+  end
+
+  def ensure_scrubbed_html(
+        content,
+        scrubbers
+      ) do
+    {:commit, filter_tags(content, scrubbers)}
+  end
+
+  defp generate_scrubber_signature(scrubber) when is_atom(scrubber) do
+    generate_scrubber_signature([scrubber])
+  end
+
+  defp generate_scrubber_signature(scrubbers) do
+    Enum.reduce(scrubbers, "", fn scrubber, signature ->
+      "#{signature}#{to_string(scrubber)}"
+    end)
+  end
 end

 defmodule Pleroma.HTML.Scrubber.TwitterText do
--- a/lib/pleroma/http/connection.ex
+++ b/lib/pleroma/http/connection.ex
@ -1,10 +1,13 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.HTTP.Connection do
  @moduledoc """
  Connection for http-requests.
  """

  @hackney_options [
-    pool: :default,
    timeout: 10000,
    recv_timeout: 20000,
    follow_redirect: true
--- a/lib/pleroma/http/http.ex
+++ b/lib/pleroma/http/http.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.HTTP do
  @moduledoc """

@ -6,6 +10,8 @@ defmodule Pleroma.HTTP do
  alias Pleroma.HTTP.Connection
  alias Pleroma.HTTP.RequestBuilder, as: Builder

+  @type t :: __MODULE__
+
  @doc """
  Builds and perform http request.

@ -50,7 +56,6 @@ defmodule Pleroma.HTTP do
  def process_request_options(options) do
    config = Application.get_env(:pleroma, :http, [])
    proxy = Keyword.get(config, :proxy_url, nil)
-    options = options ++ [adapter: [pool: :default]]

    case proxy do
      nil -> options
--- a/lib/pleroma/http/request_builder.ex
+++ b/lib/pleroma/http/request_builder.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.HTTP.RequestBuilder do
  @moduledoc """
  Helper functions for building Tesla requests
--- a/lib/pleroma/list.ex
+++ b/lib/pleroma/list.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.List do
  use Ecto.Schema
  import Ecto.{Changeset, Query}
--- a/lib/pleroma/mime.ex
+++ b/lib/pleroma/mime.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.MIME do
  @moduledoc """
  Returns the mime-type of a binary and optionally a normalized file-name.
--- a/lib/pleroma/notification.ex
+++ b/lib/pleroma/notification.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Notification do
  use Ecto.Schema
  alias Pleroma.{User, Activity, Notification, Repo, Object}
@ -76,9 +80,8 @@ defmodule Pleroma.Notification do
  end

  def clear(user) do
-    query = from(n in Notification, where: n.user_id == ^user.id)
-
-    Repo.delete_all(query)
+    from(n in Notification, where: n.user_id == ^user.id)
+    |> Repo.delete_all()
  end

  def dismiss(%{id: user_id} = _user, id) do
@ -106,7 +109,12 @@ defmodule Pleroma.Notification do
  # TODO move to sql, too.
  def create_notification(%Activity{} = activity, %User{} = user) do
    unless User.blocks?(user, %{ap_id: activity.data["actor"]}) or
-             user.ap_id == activity.data["actor"] do
+             user.ap_id == activity.data["actor"] or
+             (activity.data["type"] == "Follow" and
+                Enum.any?(Notification.for_user(user), fn notif ->
+                  notif.activity.data["type"] == "Follow" and
+                    notif.activity.data["actor"] == activity.data["actor"]
+                end)) do
      notification = %Notification{user_id: user.id, activity: activity}
      {:ok, notification} = Repo.insert(notification)
      Pleroma.Web.Streamer.stream("user", notification)
--- a/lib/pleroma/object.ex
+++ b/lib/pleroma/object.ex
@ -1,6 +1,10 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Object do
  use Ecto.Schema
-  alias Pleroma.{Repo, Object, User, Activity}
+  alias Pleroma.{Repo, Object, User, Activity, ObjectTombstone}
  import Ecto.{Query, Changeset}

  schema "objects" do
@ -62,8 +66,25 @@ defmodule Pleroma.Object do
    Object.change(%Object{}, %{data: %{"id" => context}})
  end

+  def make_tombstone(%Object{data: %{"id" => id, "type" => type}}, deleted \\ DateTime.utc_now()) do
+    %ObjectTombstone{
+      id: id,
+      formerType: type,
+      deleted: deleted
+    }
+    |> Map.from_struct()
+  end
+
+  def swap_object_with_tombstone(object) do
+    tombstone = make_tombstone(object)
+
+    object
+    |> Object.change(%{data: tombstone})
+    |> Repo.update()
+  end
+
  def delete(%Object{data: %{"id" => id}} = object) do
-    with Repo.delete(object),
+    with {:ok, _obj} = swap_object_with_tombstone(object),
         Repo.delete_all(Activity.all_non_create_by_object_ap_id_q(id)),
         {:ok, true} <- Cachex.del(:object_cache, "object:#{id}") do
      {:ok, object}
--- a/lib/pleroma/object_tombstone.ex
+++ b/lib/pleroma/object_tombstone.ex
@ -0,0 +1,4 @@
+defmodule Pleroma.ObjectTombstone do
+  @enforce_keys [:id, :formerType, :deleted]
+  defstruct [:id, :formerType, :deleted, type: "Tombstone"]
+end
--- a/lib/pleroma/plugs/admin_secret_authentication_plug.ex
+++ b/lib/pleroma/plugs/admin_secret_authentication_plug.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Plugs.AdminSecretAuthenticationPlug do
  import Plug.Conn
  alias Pleroma.User
--- a/lib/pleroma/plugs/authentication_plug.ex
+++ b/lib/pleroma/plugs/authentication_plug.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Plugs.AuthenticationPlug do
  alias Comeonin.Pbkdf2
  import Plug.Conn
--- a/lib/pleroma/plugs/basic_auth_decoder_plug.ex
+++ b/lib/pleroma/plugs/basic_auth_decoder_plug.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Plugs.BasicAuthDecoderPlug do
  import Plug.Conn

--- a/lib/pleroma/plugs/digest.ex
+++ b/lib/pleroma/plugs/digest.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.Plugs.DigestPlug do
  alias Plug.Conn
  require Logger
--- a/lib/pleroma/plugs/ensure_authenticated_plug.ex
+++ b/lib/pleroma/plugs/ensure_authenticated_plug.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Plugs.EnsureAuthenticatedPlug do
  import Plug.Conn
  alias Pleroma.User
--- a/lib/pleroma/plugs/ensure_user_key_plug.ex
+++ b/lib/pleroma/plugs/ensure_user_key_plug.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Plugs.EnsureUserKeyPlug do
  import Plug.Conn

--- a/lib/pleroma/plugs/federating_plug.ex
+++ b/lib/pleroma/plugs/federating_plug.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.FederatingPlug do
  import Plug.Conn

--- a/lib/pleroma/plugs/http_security_plug.ex
+++ b/lib/pleroma/plugs/http_security_plug.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Plugs.HTTPSecurityPlug do
  alias Pleroma.Config
  import Plug.Conn
--- a/lib/pleroma/plugs/http_signature.ex
+++ b/lib/pleroma/plugs/http_signature.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.Plugs.HTTPSignaturePlug do
  alias Pleroma.Web.HTTPSignatures
  alias Pleroma.Web.ActivityPub.Utils
--- a/lib/pleroma/plugs/instance_static.ex
+++ b/lib/pleroma/plugs/instance_static.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Plugs.InstanceStatic do
  @moduledoc """
  This is a shim to call `Plug.Static` but with runtime `from` configuration.
--- a/lib/pleroma/plugs/legacy_authentication_plug.ex
+++ b/lib/pleroma/plugs/legacy_authentication_plug.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Plugs.LegacyAuthenticationPlug do
  import Plug.Conn
  alias Pleroma.User
--- a/lib/pleroma/plugs/oauth_plug.ex
+++ b/lib/pleroma/plugs/oauth_plug.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Plugs.OAuthPlug do
  import Plug.Conn
  import Ecto.Query
--- a/lib/pleroma/plugs/session_authentication_plug.ex
+++ b/lib/pleroma/plugs/session_authentication_plug.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Plugs.SessionAuthenticationPlug do
  import Plug.Conn

--- a/lib/pleroma/plugs/set_user_session_id_plug.ex
+++ b/lib/pleroma/plugs/set_user_session_id_plug.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Plugs.SetUserSessionIdPlug do
  import Plug.Conn
  alias Pleroma.User
--- a/lib/pleroma/plugs/uploaded_media.ex
+++ b/lib/pleroma/plugs/uploaded_media.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Plugs.UploadedMedia do
  @moduledoc """
  """
--- a/lib/pleroma/plugs/user_enabled_plug.ex
+++ b/lib/pleroma/plugs/user_enabled_plug.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Plugs.UserEnabledPlug do
  import Plug.Conn
  alias Pleroma.User
--- a/lib/pleroma/plugs/user_fetcher_plug.ex
+++ b/lib/pleroma/plugs/user_fetcher_plug.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Plugs.UserFetcherPlug do
  import Plug.Conn
  alias Pleroma.Repo
--- a/lib/pleroma/plugs/user_is_admin_plug.ex
+++ b/lib/pleroma/plugs/user_is_admin_plug.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Plugs.UserIsAdminPlug do
  import Plug.Conn
  alias Pleroma.User
--- a/lib/pleroma/repo.ex
+++ b/lib/pleroma/repo.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Repo do
  use Ecto.Repo, otp_app: :pleroma

--- a/lib/pleroma/reverse_proxy.ex
+++ b/lib/pleroma/reverse_proxy.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.ReverseProxy do
  @keep_req_headers ~w(accept user-agent accept-encoding cache-control if-modified-since if-unmodified-since if-none-match if-range range)
  @resp_cache_headers ~w(etag date last-modified cache-control)
--- a/lib/pleroma/stats.ex
+++ b/lib/pleroma/stats.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Stats do
  import Ecto.Query
  alias Pleroma.{User, Repo}
--- a/lib/pleroma/upload.ex
+++ b/lib/pleroma/upload.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Upload do
  @moduledoc """
  # Upload
--- a/lib/pleroma/upload/filter.ex
+++ b/lib/pleroma/upload/filter.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Upload.Filter do
  @moduledoc """
  Upload Filter behaviour
--- a/lib/pleroma/upload/filter/anonymize_filename.ex
+++ b/lib/pleroma/upload/filter/anonymize_filename.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Upload.Filter.AnonymizeFilename do
  @moduledoc """
  Replaces the original filename with a pre-defined text or randomly generated string.
--- a/lib/pleroma/upload/filter/dedupe.ex
+++ b/lib/pleroma/upload/filter/dedupe.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Upload.Filter.Dedupe do
  @behaviour Pleroma.Upload.Filter
  alias Pleroma.Upload
--- a/lib/pleroma/upload/filter/mogrifun.ex
+++ b/lib/pleroma/upload/filter/mogrifun.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Upload.Filter.Mogrifun do
  @behaviour Pleroma.Upload.Filter

--- a/lib/pleroma/upload/filter/mogrify.ex
+++ b/lib/pleroma/upload/filter/mogrify.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Upload.Filter.Mogrify do
  @behaviour Pleroma.Upload.Filter

--- a/lib/pleroma/uploaders/local.ex
+++ b/lib/pleroma/uploaders/local.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Uploaders.Local do
  @behaviour Pleroma.Uploaders.Uploader

--- a/lib/pleroma/uploaders/mdii.ex
+++ b/lib/pleroma/uploaders/mdii.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Uploaders.MDII do
  alias Pleroma.Config

--- a/lib/pleroma/uploaders/s3.ex
+++ b/lib/pleroma/uploaders/s3.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Uploaders.S3 do
  @behaviour Pleroma.Uploaders.Uploader
  require Logger
--- a/lib/pleroma/uploaders/swift/keystone.ex
+++ b/lib/pleroma/uploaders/swift/keystone.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Uploaders.Swift.Keystone do
  use HTTPoison.Base

--- a/lib/pleroma/uploaders/swift/swift.ex
+++ b/lib/pleroma/uploaders/swift/swift.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Uploaders.Swift.Client do
  use HTTPoison.Base

--- a/lib/pleroma/uploaders/swift/uploader.ex
+++ b/lib/pleroma/uploaders/swift/uploader.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Uploaders.Swift do
  @behaviour Pleroma.Uploaders.Uploader

--- a/lib/pleroma/uploaders/uploader.ex
+++ b/lib/pleroma/uploaders/uploader.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Uploaders.Uploader do
  @moduledoc """
  Defines the contract to put and get an uploaded file to any backend.
--- a/lib/pleroma/user.ex
+++ b/lib/pleroma/user.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.User do
  use Ecto.Schema

@ -9,6 +13,8 @@ defmodule Pleroma.User do
  alias Pleroma.Web.{OStatus, Websub, OAuth}
  alias Pleroma.Web.ActivityPub.{Utils, ActivityPub}

+  require Logger
+
  @type t :: %__MODULE__{}

  @email_regex ~r/^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/
@ -38,6 +44,29 @@ defmodule Pleroma.User do
    timestamps()
  end

+  def auth_active?(%User{local: false}), do: true
+
+  def auth_active?(%User{info: %User.Info{confirmation_pending: false}}), do: true
+
+  def auth_active?(%User{info: %User.Info{confirmation_pending: true}}),
+    do: !Pleroma.Config.get([:instance, :account_activation_required])
+
+  def auth_active?(_), do: false
+
+  def visible_for?(user, for_user \\ nil)
+
+  def visible_for?(%User{id: user_id}, %User{id: for_id}) when user_id == for_id, do: true
+
+  def visible_for?(%User{} = user, for_user) do
+    auth_active?(user) || superuser?(for_user)
+  end
+
+  def visible_for?(_, _), do: false
+
+  def superuser?(%User{local: true, info: %User.Info{is_admin: true}}), do: true
+  def superuser?(%User{local: true, info: %User.Info{is_moderator: true}}), do: true
+  def superuser?(_), do: false
+
  def avatar_url(user) do
    case user.avatar do
      %{"url" => [%{"href" => href} | _]} -> href
@ -78,6 +107,7 @@ defmodule Pleroma.User do
      note_count: user.info.note_count,
      follower_count: user.info.follower_count,
      locked: user.info.locked,
+      confirmation_pending: user.info.confirmation_pending,
      default_scope: user.info.default_scope
    }
  end
@ -168,7 +198,16 @@ defmodule Pleroma.User do
    update_and_set_cache(password_update_changeset(user, data))
  end

-  def register_changeset(struct, params \\ %{}) do
+  def register_changeset(struct, params \\ %{}, opts \\ []) do
+    confirmation_status =
+      if opts[:confirmed] || !Pleroma.Config.get([:instance, :account_activation_required]) do
+        :confirmed
+      else
+        :unconfirmed
+      end
+
+    info_change = User.Info.confirmation_changeset(%User.Info{}, confirmation_status)
+
    changeset =
      struct
      |> cast(params, [:bio, :email, :name, :nickname, :password, :password_confirmation])
@ -176,11 +215,12 @@ defmodule Pleroma.User do
      |> validate_confirmation(:password)
      |> unique_constraint(:email)
      |> unique_constraint(:nickname)
+      |> validate_exclusion(:nickname, Pleroma.Config.get([Pleroma.User, :restricted_nicknames]))
      |> validate_format(:nickname, local_nickname_regex())
      |> validate_format(:email, @email_regex)
      |> validate_length(:bio, max: 1000)
      |> validate_length(:name, min: 1, max: 100)
-      |> put_change(:info, %Pleroma.User.Info{})
+      |> put_change(:info, info_change)

    if changeset.valid? do
      hashed = Pbkdf2.hashpwsalt(changeset.changes[:password])
@ -197,6 +237,39 @@ defmodule Pleroma.User do
    end
  end

+  defp autofollow_users(user) do
+    candidates = Pleroma.Config.get([:instance, :autofollowed_nicknames])
+
+    autofollowed_users =
+      from(u in User,
+        where: u.local == true,
+        where: u.nickname in ^candidates
+      )
+      |> Repo.all()
+
+    follow_all(user, autofollowed_users)
+  end
+
+  @doc "Inserts provided changeset, performs post-registration actions (confirmation email sending etc.)"
+  def register(%Ecto.Changeset{} = changeset) do
+    with {:ok, user} <- Repo.insert(changeset),
+         {:ok, _} <- try_send_confirmation_email(user),
+         {:ok, user} <- autofollow_users(user) do
+      {:ok, user}
+    end
+  end
+
+  def try_send_confirmation_email(%User{} = user) do
+    if user.info.confirmation_pending &&
+         Pleroma.Config.get([:instance, :account_activation_required]) do
+      user
+      |> Pleroma.UserEmail.account_confirmation_email()
+      |> Pleroma.Mailer.deliver()
+    else
+      {:ok, :noop}
+    end
+  end
+
  def needs_update?(%User{local: true}), do: false

  def needs_update?(%User{local: false, last_refreshed_at: nil}), do: true
@ -231,6 +304,25 @@ defmodule Pleroma.User do
    end
  end

+  @doc "A mass follow for local users. Ignores blocks and has no side effects"
+  @spec follow_all(User.t(), list(User.t())) :: {atom(), User.t()}
+  def follow_all(follower, followeds) do
+    following =
+      (follower.following ++ Enum.map(followeds, fn %{follower_address: fa} -> fa end))
+      |> Enum.uniq()
+
+    {:ok, follower} =
+      follower
+      |> follow_changeset(%{following: following})
+      |> update_and_set_cache
+
+    Enum.each(followeds, fn followed ->
+      update_follower_count(followed)
+    end)
+
+    {:ok, follower}
+  end
+
  def follow(%User{} = follower, %User{info: info} = followed) do
    user_config = Application.get_env(:pleroma, :user)
    deny_follow_blocked = Keyword.get(user_config, :deny_follow_blocked)
@ -290,6 +382,24 @@ defmodule Pleroma.User do
    Enum.member?(follower.following, followed.follower_address)
  end

+  def follow_import(%User{} = follower, followed_identifiers)
+      when is_list(followed_identifiers) do
+    Enum.map(
+      followed_identifiers,
+      fn followed_identifier ->
+        with %User{} = followed <- get_or_fetch(followed_identifier),
+             {:ok, follower} <- maybe_direct_follow(follower, followed),
+             {:ok, _} <- ActivityPub.follow(follower, followed) do
+          followed
+        else
+          err ->
+            Logger.debug("follow_import failed for #{followed_identifier} with: #{inspect(err)}")
+            err
+        end
+      end
+    )
+  end
+
  def locked?(%User{} = user) do
    user.info.locked || false
  end
@ -302,6 +412,15 @@ defmodule Pleroma.User do
    Repo.get_by(User, ap_id: ap_id)
  end

+  # This is mostly an SPC migration fix. This guesses the user nickname (by taking the last part of the ap_id and the domain) and tries to get that user
+  def get_by_guessed_nickname(ap_id) do
+    domain = URI.parse(ap_id).host
+    name = List.last(String.split(ap_id, "/"))
+    nickname = "#{name}@#{domain}"
+
+    get_by_nickname(nickname)
+  end
+
  def update_and_set_cache(changeset) do
    with {:ok, user} <- Repo.update(changeset) do
      Cachex.put(:user_cache, "ap_id:#{user.ap_id}", user)
@ -339,7 +458,11 @@ defmodule Pleroma.User do
  end

  def get_by_nickname(nickname) do
-    Repo.get_by(User, nickname: nickname)
+    Repo.get_by(User, nickname: nickname) ||
+      if Regex.match?(~r(@#{Pleroma.Web.Endpoint.host()})i, nickname) do
+        [local_nickname, _] = String.split(nickname, "@")
+        Repo.get_by(User, nickname: local_nickname)
+      end
  end

  def get_by_nickname_or_email(nickname_or_email) do
@ -377,7 +500,7 @@ defmodule Pleroma.User do
    end
  end

-  def get_followers_query(%User{id: id, follower_address: follower_address}) do
+  def get_followers_query(%User{id: id, follower_address: follower_address}, nil) do
    from(
      u in User,
      where: fragment("? <@ ?", ^[follower_address], u.following),
@ -385,13 +508,23 @@ defmodule Pleroma.User do
    )
  end

-  def get_followers(user) do
-    q = get_followers_query(user)
+  def get_followers_query(user, page) do
+    from(
+      u in get_followers_query(user, nil),
+      limit: 20,
+      offset: ^((page - 1) * 20)
+    )
+  end
+
+  def get_followers_query(user), do: get_followers_query(user, nil)
+
+  def get_followers(user, page \\ nil) do
+    q = get_followers_query(user, page)

    {:ok, Repo.all(q)}
  end

-  def get_friends_query(%User{id: id, following: following}) do
+  def get_friends_query(%User{id: id, following: following}, nil) do
    from(
      u in User,
      where: u.follower_address in ^following,
@ -399,8 +532,18 @@ defmodule Pleroma.User do
    )
  end

-  def get_friends(user) do
-    q = get_friends_query(user)
+  def get_friends_query(user, page) do
+    from(
+      u in get_friends_query(user, nil),
+      limit: 20,
+      offset: ^((page - 1) * 20)
+    )
+  end
+
+  def get_friends_query(user), do: get_friends_query(user, nil)
+
+  def get_friends(user, page \\ nil) do
+    q = get_friends_query(user, page)

    {:ok, Repo.all(q)}
  end
@ -435,6 +578,7 @@ defmodule Pleroma.User do
      Enum.map(reqs, fn req -> req.actor end)
      |> Enum.uniq()
      |> Enum.map(fn ap_id -> get_by_ap_id(ap_id) end)
+      |> Enum.filter(fn u -> !is_nil(u) end)
      |> Enum.filter(fn u -> !following?(u, user) end)

    {:ok, users}
@ -549,7 +693,7 @@ defmodule Pleroma.User do
        select_merge: %{
          search_distance:
            fragment(
-              "? <-> (? || ?)",
+              "? <-> (? || coalesce(?, ''))",
              ^query,
              u.nickname,
              u.name
@ -568,6 +712,23 @@ defmodule Pleroma.User do
    Repo.all(q)
  end

+  def blocks_import(%User{} = blocker, blocked_identifiers) when is_list(blocked_identifiers) do
+    Enum.map(
+      blocked_identifiers,
+      fn blocked_identifier ->
+        with %User{} = blocked <- get_or_fetch(blocked_identifier),
+             {:ok, blocker} <- block(blocker, blocked),
+             {:ok, _} <- ActivityPub.block(blocker, blocked) do
+          blocked
+        else
+          err ->
+            Logger.debug("blocks_import failed for #{blocked_identifier} with: #{inspect(err)}")
+            err
+        end
+      end
+    )
+  end
+
  def block(blocker, %User{ap_id: ap_id} = blocked) do
    # sever any follow relationships to prevent leaks per activitypub (Pleroma issue #213)
    blocker =
@ -621,6 +782,9 @@ defmodule Pleroma.User do
      end)
  end

+  def blocked_users(user),
+    do: Repo.all(from(u in User, where: u.ap_id in ^user.info.blocks))
+
  def block_domain(user, domain) do
    info_cng =
      user.info
@ -706,7 +870,9 @@ defmodule Pleroma.User do
    Pleroma.HTML.Scrubber.TwitterText
  end

-  def html_filter_policy(_), do: nil
+  @default_scrubbers Pleroma.Config.get([:markup, :scrub_policy])
+
+  def html_filter_policy(_), do: @default_scrubbers

  def get_or_fetch_by_ap_id(ap_id) do
    user = get_by_ap_id(ap_id)
--- a/lib/pleroma/user/info.ex
+++ b/lib/pleroma/user/info.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.User.Info do
  use Ecto.Schema
  import Ecto.Changeset
@ -9,6 +13,8 @@ defmodule Pleroma.User.Info do
    field(:note_count, :integer, default: 0)
    field(:follower_count, :integer, default: 0)
    field(:locked, :boolean, default: false)
+    field(:confirmation_pending, :boolean, default: false)
+    field(:confirmation_token, :string, default: nil)
    field(:default_scope, :string, default: "public")
    field(:blocks, {:array, :string}, default: [])
    field(:domain_blocks, {:array, :string}, default: [])
@ -25,6 +31,7 @@ defmodule Pleroma.User.Info do
    field(:hub, :string, default: nil)
    field(:salmon, :string, default: nil)
    field(:hide_network, :boolean, default: false)
+    field(:pinned_activities, {:array, :integer}, default: [])

    # Found in the wild
    # ap_id -> Where is this used?
@ -141,6 +148,24 @@ defmodule Pleroma.User.Info do
    ])
  end

+  def confirmation_changeset(info, :confirmed) do
+    confirmation_changeset(info, %{
+      confirmation_pending: false,
+      confirmation_token: nil
+    })
+  end
+
+  def confirmation_changeset(info, :unconfirmed) do
+    confirmation_changeset(info, %{
+      confirmation_pending: true,
+      confirmation_token: :crypto.strong_rand_bytes(32) |> Base.url_encode64()
+    })
+  end
+
+  def confirmation_changeset(info, params) do
+    cast(info, params, [:confirmation_pending, :confirmation_token])
+  end
+
  def mastodon_profile_update(info, params) do
    info
    |> cast(params, [
@ -172,4 +197,26 @@ defmodule Pleroma.User.Info do
      :is_admin
    ])
  end
+
+  def add_pinnned_activity(info, %Pleroma.Activity{id: id}) do
+    if id not in info.pinned_activities do
+      max_pinned_statuses = Pleroma.Config.get([:instance, :max_pinned_statuses], 0)
+      params = %{pinned_activities: info.pinned_activities ++ [id]}
+
+      info
+      |> cast(params, [:pinned_activities])
+      |> validate_length(:pinned_activities,
+        max: max_pinned_statuses,
+        message: "You have already pinned the maximum number of statuses"
+      )
+    else
+      change(info)
+    end
+  end
+
+  def remove_pinnned_activity(info, %Pleroma.Activity{id: id}) do
+    params = %{pinned_activities: List.delete(info.pinned_activities, id)}
+
+    cast(info, params, [:pinned_activities])
+  end
 end
--- a/lib/pleroma/user_invite_token.ex
+++ b/lib/pleroma/user_invite_token.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.UserInviteToken do
  use Ecto.Schema

--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.ActivityPub.ActivityPub do
  alias Pleroma.{Activity, Repo, Object, Upload, User, Notification}
  alias Pleroma.Web.ActivityPub.{Transmogrifier, MRF}
@ -52,10 +56,18 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
    end
  end

+  defp check_remote_limit(%{"object" => %{"content" => content}}) do
+    limit = Pleroma.Config.get([:instance, :remote_limit])
+    String.length(content) <= limit
+  end
+
+  defp check_remote_limit(_), do: true
+
  def insert(map, local \\ true) when is_map(map) do
    with nil <- Activity.normalize(map),
         map <- lazy_put_activity_defaults(map),
         :ok <- check_actor_is_active(map["actor"]),
+         {_, true} <- {:remote_limit_error, check_remote_limit(map)},
         {:ok, map} <- MRF.filter(map),
         :ok <- insert_full_object(map) do
      {recipients, _, _} = get_recipients(map)
@ -352,21 +364,18 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do

  @valid_visibilities ~w[direct unlisted public private]

-  defp restrict_visibility(query, %{visibility: "direct"}) do
-    public = "https://www.w3.org/ns/activitystreams#Public"
+  defp restrict_visibility(query, %{visibility: visibility})
+       when visibility in @valid_visibilities do
+    query =
+      from(
+        a in query,
+        where:
+          fragment("activity_visibility(?, ?, ?) = ?", a.actor, a.recipients, a.data, ^visibility)
+      )

-    from(
-      activity in query,
-      join: sender in User,
-      on: sender.ap_id == activity.actor,
-      # Are non-direct statuses with no to/cc possible?
-      where:
-        fragment(
-          "not (? && ?)",
-          [^public, sender.follower_address],
-          activity.recipients
-        )
-    )
+    Ecto.Adapters.SQL.to_sql(:all, Repo, query)
+
+    query
  end

  defp restrict_visibility(_query, %{visibility: visibility})
@ -382,6 +391,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
      |> Map.put("type", ["Create", "Announce"])
      |> Map.put("actor_id", user.ap_id)
      |> Map.put("whole_db", true)
+      |> Map.put("pinned_activity_ids", user.info.pinned_activities)

    recipients =
      if reading_user do
@ -499,6 +509,12 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do

  defp restrict_replies(query, _), do: query

+  defp restrict_reblogs(query, %{"exclude_reblogs" => val}) when val == "true" or val == "1" do
+    from(activity in query, where: fragment("?->>'type' != 'Announce'", activity.data))
+  end
+
+  defp restrict_reblogs(query, _), do: query
+
  # Only search through last 100_000 activities by default
  defp restrict_recent(query, %{"whole_db" => true}), do: query

@ -534,6 +550,12 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
    )
  end

+  defp restrict_pinned(query, %{"pinned" => "true", "pinned_activity_ids" => ids}) do
+    from(activity in query, where: activity.id in ^ids)
+  end
+
+  defp restrict_pinned(query, _), do: query
+
  def fetch_activities_query(recipients, opts \\ %{}) do
    base_query =
      from(
@ -557,6 +579,8 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
    |> restrict_media(opts)
    |> restrict_visibility(opts)
    |> restrict_replies(opts)
+    |> restrict_reblogs(opts)
+    |> restrict_pinned(opts)
  end

  def fetch_activities(recipients, opts \\ %{}) do
@ -722,8 +746,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
        {"Content-Type", "application/activity+json"},
        {"signature", signature},
        {"digest", digest}
-      ],
-      hackney: [pool: :default]
+      ]
    )
  end

@ -783,6 +806,10 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
    end
  end

+  def is_public?(%Object{data: %{"type" => "Tombstone"}}) do
+    false
+  end
+
  def is_public?(activity) do
    "https://www.w3.org/ns/activitystreams#Public" in (activity.data["to"] ++
                                                         (activity.data["cc"] || []))
--- a/lib/pleroma/web/activity_pub/activity_pub_controller.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub_controller.ex
@ -1,10 +1,15 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.ActivityPub.ActivityPubController do
  use Pleroma.Web, :controller
-  alias Pleroma.{User, Object}
+  alias Pleroma.{Activity, User, Object}
  alias Pleroma.Web.ActivityPub.{ObjectView, UserView}
  alias Pleroma.Web.ActivityPub.ActivityPub
  alias Pleroma.Web.ActivityPub.Relay
  alias Pleroma.Web.ActivityPub.Utils
+  alias Pleroma.Web.ActivityPub.Transmogrifier
  alias Pleroma.Web.Federator

  require Logger
@ -49,6 +54,19 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubController do
    end
  end

+  def activity(conn, %{"uuid" => uuid}) do
+    with ap_id <- o_status_url(conn, :activity, uuid),
+         %Activity{} = activity <- Activity.normalize(ap_id),
+         {_, true} <- {:public?, ActivityPub.is_public?(activity)} do
+      conn
+      |> put_resp_header("content-type", "application/activity+json")
+      |> json(ObjectView.render("object.json", %{object: activity}))
+    else
+      {:public?, false} ->
+        {:error, :not_found}
+    end
+  end
+
  def following(conn, %{"nickname" => nickname, "page" => page}) do
    with %User{} = user <- User.get_cached_by_nickname(nickname),
         {:ok, user} <- Pleroma.Web.WebFinger.ensure_keys_present(user) do
@ -89,19 +107,15 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubController do
    end
  end

-  def outbox(conn, %{"nickname" => nickname, "max_id" => max_id}) do
+  def outbox(conn, %{"nickname" => nickname} = params) do
    with %User{} = user <- User.get_cached_by_nickname(nickname),
         {:ok, user} <- Pleroma.Web.WebFinger.ensure_keys_present(user) do
      conn
      |> put_resp_header("content-type", "application/activity+json")
-      |> json(UserView.render("outbox.json", %{user: user, max_id: max_id}))
+      |> json(UserView.render("outbox.json", %{user: user, max_id: params["max_id"]}))
    end
  end

-  def outbox(conn, %{"nickname" => nickname}) do
-    outbox(conn, %{"nickname" => nickname, "max_id" => nil})
-  end
-
  def inbox(%{assigns: %{valid_signature: true}} = conn, %{"nickname" => nickname} = params) do
    with %User{} = user <- User.get_cached_by_nickname(nickname),
         true <- Utils.recipient_in_message(user.ap_id, params),
@ -152,6 +166,79 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubController do
    end
  end

+  def read_inbox(%{assigns: %{user: user}} = conn, %{"nickname" => nickname} = params) do
+    if nickname == user.nickname do
+      conn
+      |> put_resp_header("content-type", "application/activity+json")
+      |> json(UserView.render("inbox.json", %{user: user, max_id: params["max_id"]}))
+    else
+      conn
+      |> put_status(:forbidden)
+      |> json("can't read inbox of #{nickname} as #{user.nickname}")
+    end
+  end
+
+  def handle_user_activity(user, %{"type" => "Create"} = params) do
+    object =
+      params["object"]
+      |> Map.merge(Map.take(params, ["to", "cc"]))
+      |> Map.put("attributedTo", user.ap_id())
+      |> Transmogrifier.fix_object()
+
+    ActivityPub.create(%{
+      to: params["to"],
+      actor: user,
+      context: object["context"],
+      object: object,
+      additional: Map.take(params, ["cc"])
+    })
+  end
+
+  def handle_user_activity(user, %{"type" => "Delete"} = params) do
+    with %Object{} = object <- Object.normalize(params["object"]),
+         true <- user.info.is_moderator || user.ap_id == object.data["actor"],
+         {:ok, delete} <- ActivityPub.delete(object) do
+      {:ok, delete}
+    else
+      _ -> {:error, "Can't delete object"}
+    end
+  end
+
+  def handle_user_activity(_, _) do
+    {:error, "Unhandled activity type"}
+  end
+
+  def update_outbox(
+        %{assigns: %{user: user}} = conn,
+        %{"nickname" => nickname} = params
+      ) do
+    if nickname == user.nickname do
+      actor = user.ap_id()
+
+      params =
+        params
+        |> Map.drop(["id"])
+        |> Map.put("actor", actor)
+        |> Transmogrifier.fix_addressing()
+
+      with {:ok, %Activity{} = activity} <- handle_user_activity(user, params) do
+        conn
+        |> put_status(:created)
+        |> put_resp_header("location", activity.data["id"])
+        |> json(activity.data)
+      else
+        {:error, message} ->
+          conn
+          |> put_status(:bad_request)
+          |> json(message)
+      end
+    else
+      conn
+      |> put_status(:forbidden)
+      |> json("can't update outbox of #{nickname} as #{user.nickname}")
+    end
+  end
+
  def errors(conn, {:error, :not_found}) do
    conn
    |> put_status(404)
--- a/lib/pleroma/web/activity_pub/mrf.ex
+++ b/lib/pleroma/web/activity_pub/mrf.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.ActivityPub.MRF do
  @callback filter(Map.t()) :: {:ok | :reject, Map.t()}

--- a/lib/pleroma/web/activity_pub/mrf/drop_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/drop_policy.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.ActivityPub.MRF.DropPolicy do
  require Logger
  @behaviour Pleroma.Web.ActivityPub.MRF
--- a/lib/pleroma/web/activity_pub/mrf/ensure_re_prepended.ex
+++ b/lib/pleroma/web/activity_pub/mrf/ensure_re_prepended.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.ActivityPub.MRF.EnsureRePrepended do
  alias Pleroma.Object

--- a/lib/pleroma/web/activity_pub/mrf/hellthread_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/hellthread_policy.ex
@ -0,0 +1,22 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.MRF.HellthreadPolicy do
+  @behaviour Pleroma.Web.ActivityPub.MRF
+
+  @impl true
+  def filter(%{"type" => "Create"} = object) do
+    threshold = Pleroma.Config.get([:mrf_hellthread, :threshold])
+    recipients = (object["to"] || []) ++ (object["cc"] || [])
+
+    if length(recipients) > threshold do
+      {:reject, nil}
+    else
+      {:ok, object}
+    end
+  end
+
+  @impl true
+  def filter(object), do: {:ok, object}
+end
--- a/lib/pleroma/web/activity_pub/mrf/noop_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/noop_policy.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.ActivityPub.MRF.NoOpPolicy do
  @behaviour Pleroma.Web.ActivityPub.MRF

--- a/lib/pleroma/web/activity_pub/mrf/normalize_markup.ex
+++ b/lib/pleroma/web/activity_pub/mrf/normalize_markup.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.ActivityPub.MRF.NormalizeMarkup do
  alias Pleroma.HTML

--- a/lib/pleroma/web/activity_pub/mrf/reject_non_public.ex
+++ b/lib/pleroma/web/activity_pub/mrf/reject_non_public.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.ActivityPub.MRF.RejectNonPublic do
  alias Pleroma.User
  @behaviour Pleroma.Web.ActivityPub.MRF
--- a/lib/pleroma/web/activity_pub/mrf/simple_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/simple_policy.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
  alias Pleroma.User
  @behaviour Pleroma.Web.ActivityPub.MRF
--- a/lib/pleroma/web/activity_pub/mrf/user_allowlist.ex
+++ b/lib/pleroma/web/activity_pub/mrf/user_allowlist.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.ActivityPub.MRF.UserAllowListPolicy do
  alias Pleroma.Config

--- a/lib/pleroma/web/activity_pub/relay.ex
+++ b/lib/pleroma/web/activity_pub/relay.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.ActivityPub.Relay do
  alias Pleroma.{User, Object, Activity}
  alias Pleroma.Web.ActivityPub.ActivityPub
--- a/lib/pleroma/web/activity_pub/transmogrifier.ex
+++ b/lib/pleroma/web/activity_pub/transmogrifier.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.ActivityPub.Transmogrifier do
  @moduledoc """
  A module to handle coding from internal to wire ActivityPub and back.
@ -69,8 +73,8 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
  def fix_object(object) do
    object
    |> fix_actor
-    |> fix_attachments
    |> fix_url
+    |> fix_attachments
    |> fix_context
    |> fix_in_reply_to
    |> fix_emoji
@ -170,8 +174,14 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
    attachments =
      attachment
      |> Enum.map(fn data ->
-        url = [%{"type" => "Link", "mediaType" => data["mediaType"], "href" => data["url"]}]
-        Map.put(data, "url", url)
+        media_type = data["mediaType"] || data["mimeType"]
+        href = data["url"] || data["href"]
+
+        url = [%{"type" => "Link", "mediaType" => media_type, "href" => href}]
+
+        data
+        |> Map.put("mediaType", media_type)
+        |> Map.put("url", url)
      end)

    object
@ -190,7 +200,22 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
    |> Map.put("url", url["href"])
  end

-  def fix_url(%{"url" => url} = object) when is_list(url) do
+  def fix_url(%{"type" => "Video", "url" => url} = object) when is_list(url) do
+    first_element = Enum.at(url, 0)
+
+    link_element =
+      url
+      |> Enum.filter(fn x -> is_map(x) end)
+      |> Enum.filter(fn x -> x["mimeType"] == "text/html" end)
+      |> Enum.at(0)
+
+    object
+    |> Map.put("attachment", [first_element])
+    |> Map.put("url", link_element["href"])
+  end
+
+  def fix_url(%{"type" => object_type, "url" => url} = object)
+      when object_type != "Video" and is_list(url) do
    first_element = Enum.at(url, 0)

    url_string =
--- a/lib/pleroma/web/activity_pub/utils.ex
+++ b/lib/pleroma/web/activity_pub/utils.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.ActivityPub.Utils do
  alias Pleroma.{Repo, Web, Object, Activity, User, Notification}
  alias Pleroma.Web.Router.Helpers
--- a/lib/pleroma/web/activity_pub/views/object_view.ex
+++ b/lib/pleroma/web/activity_pub/views/object_view.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.ActivityPub.ObjectView do
  use Pleroma.Web, :view
  alias Pleroma.{Object, Activity}
--- a/lib/pleroma/web/activity_pub/views/user_view.ex
+++ b/lib/pleroma/web/activity_pub/views/user_view.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.ActivityPub.UserView do
  use Pleroma.Web, :view
  alias Pleroma.Web.Salmon
@ -172,6 +176,53 @@ defmodule Pleroma.Web.ActivityPub.UserView do
    end
  end

+  def render("inbox.json", %{user: user, max_id: max_qid}) do
+    params = %{
+      "limit" => "10"
+    }
+
+    params =
+      if max_qid != nil do
+        Map.put(params, "max_id", max_qid)
+      else
+        params
+      end
+
+    activities = ActivityPub.fetch_activities([user.ap_id | user.following], params)
+
+    min_id = Enum.at(Enum.reverse(activities), 0).id
+    max_id = Enum.at(activities, 0).id
+
+    collection =
+      Enum.map(activities, fn act ->
+        {:ok, data} = Transmogrifier.prepare_outgoing(act.data)
+        data
+      end)
+
+    iri = "#{user.ap_id}/inbox"
+
+    page = %{
+      "id" => "#{iri}?max_id=#{max_id}",
+      "type" => "OrderedCollectionPage",
+      "partOf" => iri,
+      "totalItems" => -1,
+      "orderedItems" => collection,
+      "next" => "#{iri}?max_id=#{min_id - 1}"
+    }
+
+    if max_qid == nil do
+      %{
+        "id" => iri,
+        "type" => "OrderedCollection",
+        "totalItems" => -1,
+        "first" => page
+      }
+      |> Map.merge(Utils.make_json_ld_header())
+    else
+      page |> Map.merge(Utils.make_json_ld_header())
+    end
+  end
+
  def collection(collection, iri, page, show_items \\ true, total \\ nil) do
    offset = (page - 1) * 10
    items = Enum.slice(collection, offset, 10)
--- a/lib/pleroma/web/admin_api/admin_api_controller.ex
+++ b/lib/pleroma/web/admin_api/admin_api_controller.ex
@ -1,6 +1,10 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.AdminAPI.AdminAPIController do
  use Pleroma.Web, :controller
-  alias Pleroma.{User, Repo}
+  alias Pleroma.User
  alias Pleroma.Web.ActivityPub.Relay

  import Pleroma.Web.ControllerHelper, only: [json_response: 3]
@ -10,13 +14,8 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
  action_fallback(:errors)

  def user_delete(conn, %{"nickname" => nickname}) do
-    user = User.get_by_nickname(nickname)
-
-    if user.local == true do
-      User.delete(user)
-    else
-      User.delete(user)
-    end
+    User.get_by_nickname(nickname)
+    |> User.delete()

    conn
    |> json(nickname)
@ -26,7 +25,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
        conn,
        %{"nickname" => nickname, "email" => email, "password" => password}
      ) do
-    new_user = %{
+    user_data = %{
      nickname: nickname,
      name: nickname,
      email: email,
@ -35,11 +34,11 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
      bio: "."
    }

-    User.register_changeset(%User{}, new_user)
-    |> Repo.insert!()
+    changeset = User.register_changeset(%User{}, user_data, confirmed: true)
+    {:ok, user} = User.register(changeset)

    conn
-    |> json(new_user.nickname)
+    |> json(user.nickname)
  end

  def tag_users(conn, %{"nicknames" => nicknames, "tags" => tags}) do
--- a/lib/pleroma/web/channels/user_socket.ex
+++ b/lib/pleroma/web/channels/user_socket.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.UserSocket do
  use Phoenix.Socket
  alias Pleroma.User
--- a/lib/pleroma/web/chat_channel.ex
+++ b/lib/pleroma/web/chat_channel.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.ChatChannel do
  use Phoenix.Channel
  alias Pleroma.Web.ChatChannel.ChatChannelState
--- a/lib/pleroma/web/common_api/common_api.ex
+++ b/lib/pleroma/web/common_api/common_api.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.CommonAPI do
  alias Pleroma.{User, Repo, Activity, Object}
  alias Pleroma.Web.ActivityPub.ActivityPub
@ -10,6 +14,7 @@ defmodule Pleroma.Web.CommonAPI do
    with %Activity{data: %{"object" => %{"id" => object_id}}} <- Repo.get(Activity, activity_id),
         %Object{} = object <- Object.normalize(object_id),
         true <- user.info.is_moderator || user.ap_id == object.data["actor"],
+         {:ok, _} <- unpin(activity_id, user),
         {:ok, delete} <- ActivityPub.delete(object) do
      {:ok, delete}
    end
@ -98,7 +103,7 @@ defmodule Pleroma.Web.CommonAPI do
             attachments,
             tags,
             get_content_type(data["content_type"]),
-             data["no_attachment_links"]
+             Enum.member?([true, "true"], data["no_attachment_links"])
           ),
         context <- make_context(inReplyTo),
         cw <- data["spoiler_text"],
@ -120,7 +125,7 @@ defmodule Pleroma.Web.CommonAPI do
           Map.put(
             object,
             "emoji",
-             Formatter.get_emoji(status)
+             (Formatter.get_emoji(status) ++ Formatter.get_emoji(data["spoiler_text"]))
             |> Enum.reduce(%{}, fn {name, file}, acc ->
               Map.put(acc, name, "#{Pleroma.Web.Endpoint.static_url()}#{file}")
             end)
@ -160,4 +165,48 @@ defmodule Pleroma.Web.CommonAPI do
      object: Pleroma.Web.ActivityPub.UserView.render("user.json", %{user: user})
    })
  end
+
+  def pin(id_or_ap_id, %{ap_id: user_ap_id} = user) do
+    with %Activity{
+           actor: ^user_ap_id,
+           data: %{
+             "type" => "Create",
+             "object" => %{
+               "to" => object_to,
+               "type" => "Note"
+             }
+           }
+         } = activity <- get_by_id_or_ap_id(id_or_ap_id),
+         true <- Enum.member?(object_to, "https://www.w3.org/ns/activitystreams#Public"),
+         %{valid?: true} = info_changeset <-
+           Pleroma.User.Info.add_pinnned_activity(user.info, activity),
+         changeset <-
+           Ecto.Changeset.change(user) |> Ecto.Changeset.put_embed(:info, info_changeset),
+         {:ok, _user} <- User.update_and_set_cache(changeset) do
+      {:ok, activity}
+    else
+      %{errors: [pinned_activities: {err, _}]} ->
+        {:error, err}
+
+      _ ->
+        {:error, "Could not pin"}
+    end
+  end
+
+  def unpin(id_or_ap_id, user) do
+    with %Activity{} = activity <- get_by_id_or_ap_id(id_or_ap_id),
+         %{valid?: true} = info_changeset <-
+           Pleroma.User.Info.remove_pinnned_activity(user.info, activity),
+         changeset <-
+           Ecto.Changeset.change(user) |> Ecto.Changeset.put_embed(:info, info_changeset),
+         {:ok, _user} <- User.update_and_set_cache(changeset) do
+      {:ok, activity}
+    else
+      %{errors: [pinned_activities: {err, _}]} ->
+        {:error, err}
+
+      _ ->
+        {:error, "Could not unpin"}
+    end
+  end
 end
--- a/lib/pleroma/web/common_api/utils.ex
+++ b/lib/pleroma/web/common_api/utils.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.CommonAPI.Utils do
  alias Calendar.Strftime
  alias Comeonin.Pbkdf2
@ -132,7 +136,6 @@ defmodule Pleroma.Web.CommonAPI.Utils do
  def format_input(text, mentions, _tags, "text/html") do
    text
    |> Formatter.html_escape("text/html")
-    |> String.replace(~r/\r?\n/, "<br>")
    |> (&{[], &1}).()
    |> Formatter.add_user_links(mentions)
    |> Formatter.finalize()
@ -146,7 +149,6 @@ defmodule Pleroma.Web.CommonAPI.Utils do
    |> Formatter.mentions_escape(mentions)
    |> Earmark.as_html!()
    |> Formatter.html_escape("text/html")
-    |> String.replace(~r/\r?\n/, "")
    |> (&{[], &1}).()
    |> Formatter.add_user_links(mentions)
    |> Formatter.add_hashtag_links(tags)
--- a/lib/pleroma/web/controller_helper.ex
+++ b/lib/pleroma/web/controller_helper.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.ControllerHelper do
  use Pleroma.Web, :controller

--- a/lib/pleroma/web/endpoint.ex
+++ b/lib/pleroma/web/endpoint.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.Endpoint do
  use Phoenix.Endpoint, otp_app: :pleroma

@ -21,7 +25,7 @@ defmodule Pleroma.Web.Endpoint do
    at: "/",
    from: :pleroma,
    only:
-      ~w(index.html static finmoji emoji packs sounds images instance sw.js favicon.png schemas)
+      ~w(index.html static finmoji emoji packs sounds images instance sw.js favicon.png schemas doc)
  )

  # Code reloading can be explicitly enabled under the
--- a/lib/pleroma/web/federator/federator.ex
+++ b/lib/pleroma/web/federator/federator.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.Federator do
  use GenServer
  alias Pleroma.User
@ -13,7 +17,6 @@ defmodule Pleroma.Web.Federator do

  @websub Application.get_env(:pleroma, :websub)
  @ostatus Application.get_env(:pleroma, :ostatus)
-  @max_jobs 20

  def init(args) do
    {:ok, args}
@ -164,7 +167,7 @@ defmodule Pleroma.Web.Federator do
  end

  def maybe_start_job(running_jobs, queue) do
-    if :sets.size(running_jobs) < @max_jobs && queue != [] do
+    if :sets.size(running_jobs) < Pleroma.Config.get([__MODULE__, :max_jobs]) && queue != [] do
      {{type, payload}, queue} = queue_pop(queue)
      {:ok, pid} = Task.start(fn -> handle(type, payload) end)
      mref = Process.monitor(pid)
--- a/lib/pleroma/web/federator/retry_queue.ex
+++ b/lib/pleroma/web/federator/retry_queue.ex
@ -1,22 +1,34 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.Federator.RetryQueue do
  use GenServer

  require Logger

-  # initial timeout, 5 min
-  @initial_timeout 30_000
-  @max_retries 5
-
  def init(args) do
-    {:ok, args}
+    queue_table = :ets.new(:pleroma_retry_queue, [:bag, :protected])
+
+    {:ok, %{args | queue_table: queue_table, running_jobs: :sets.new()}}
  end

  def start_link() do
-    enabled = Pleroma.Config.get([:retry_queue, :enabled], false)
+    enabled =
+      if Mix.env() == :test, do: true, else: Pleroma.Config.get([__MODULE__, :enabled], false)

    if enabled do
      Logger.info("Starting retry queue")
-      GenServer.start_link(__MODULE__, %{delivered: 0, dropped: 0}, name: __MODULE__)
+
+      linkres =
+        GenServer.start_link(
+          __MODULE__,
+          %{delivered: 0, dropped: 0, queue_table: nil, running_jobs: nil},
+          name: __MODULE__
+        )
+
+      maybe_kickoff_timer()
+      linkres
    else
      Logger.info("Retry queue disabled")
      :ignore
@ -27,24 +39,133 @@ defmodule Pleroma.Web.Federator.RetryQueue do
    GenServer.cast(__MODULE__, {:maybe_enqueue, data, transport, retries + 1})
  end

+  def get_stats() do
+    GenServer.call(__MODULE__, :get_stats)
+  end
+
+  def reset_stats() do
+    GenServer.call(__MODULE__, :reset_stats)
+  end
+
  def get_retry_params(retries) do
-    if retries > @max_retries do
+    if retries > Pleroma.Config.get([__MODULE__, :max_retries]) do
      {:drop, "Max retries reached"}
    else
      {:retry, growth_function(retries)}
    end
  end

-  def handle_cast({:maybe_enqueue, data, transport, retries}, %{dropped: drop_count} = state) do
+  def get_retry_timer_interval() do
+    Pleroma.Config.get([:retry_queue, :interval], 1000)
+  end
+
+  defp ets_count_expires(table, current_time) do
+    :ets.select_count(
+      table,
+      [
+        {
+          {:"$1", :"$2"},
+          [{:"=<", :"$1", {:const, current_time}}],
+          [true]
+        }
+      ]
+    )
+  end
+
+  defp ets_pop_n_expired(table, current_time, desired) do
+    {popped, _continuation} =
+      :ets.select(
+        table,
+        [
+          {
+            {:"$1", :"$2"},
+            [{:"=<", :"$1", {:const, current_time}}],
+            [:"$_"]
+          }
+        ],
+        desired
+      )
+
+    popped
+    |> Enum.each(fn e ->
+      :ets.delete_object(table, e)
+    end)
+
+    popped
+  end
+
+  def maybe_start_job(running_jobs, queue_table) do
+    # we don't want to hit the ets or the DateTime more times than we have to
+    # could optimize slightly further by not using the count, and instead grabbing
+    # up to N objects early...
+    current_time = DateTime.to_unix(DateTime.utc_now())
+    n_running_jobs = :sets.size(running_jobs)
+
+    if n_running_jobs < Pleroma.Config.get([__MODULE__, :max_jobs]) do
+      n_ready_jobs = ets_count_expires(queue_table, current_time)
+
+      if n_ready_jobs > 0 do
+        # figure out how many we could start
+        available_job_slots = Pleroma.Config.get([__MODULE__, :max_jobs]) - n_running_jobs
+        start_n_jobs(running_jobs, queue_table, current_time, available_job_slots)
+      else
+        running_jobs
+      end
+    else
+      running_jobs
+    end
+  end
+
+  defp start_n_jobs(running_jobs, _queue_table, _current_time, 0) do
+    running_jobs
+  end
+
+  defp start_n_jobs(running_jobs, queue_table, current_time, available_job_slots)
+       when available_job_slots > 0 do
+    candidates = ets_pop_n_expired(queue_table, current_time, available_job_slots)
+
+    candidates
+    |> List.foldl(running_jobs, fn {_, e}, rj ->
+      {:ok, pid} = Task.start(fn -> worker(e) end)
+      mref = Process.monitor(pid)
+      :sets.add_element(mref, rj)
+    end)
+  end
+
+  def worker({:send, data, transport, retries}) do
+    case transport.publish_one(data) do
+      {:ok, _} ->
+        GenServer.cast(__MODULE__, :inc_delivered)
+        :delivered
+
+      {:error, _reason} ->
+        enqueue(data, transport, retries)
+        :retry
+    end
+  end
+
+  def handle_call(:get_stats, _from, %{delivered: delivery_count, dropped: drop_count} = state) do
+    {:reply, %{delivered: delivery_count, dropped: drop_count}, state}
+  end
+
+  def handle_call(:reset_stats, _from, %{delivered: delivery_count, dropped: drop_count} = state) do
+    {:reply, %{delivered: delivery_count, dropped: drop_count},
+     %{state | delivered: 0, dropped: 0}}
+  end
+
+  def handle_cast(:reset_stats, state) do
+    {:noreply, %{state | delivered: 0, dropped: 0}}
+  end
+
+  def handle_cast(
+        {:maybe_enqueue, data, transport, retries},
+        %{dropped: drop_count, queue_table: queue_table, running_jobs: running_jobs} = state
+      ) do
    case get_retry_params(retries) do
      {:retry, timeout} ->
-        Process.send_after(
-          __MODULE__,
-          {:send, data, transport, retries},
-          timeout
-        )
-
-        {:noreply, state}
+        :ets.insert(queue_table, {timeout, {:send, data, transport, retries}})
+        running_jobs = maybe_start_job(running_jobs, queue_table)
+        {:noreply, %{state | running_jobs: running_jobs}}

      {:drop, message} ->
        Logger.debug(message)
@ -52,6 +173,20 @@ defmodule Pleroma.Web.Federator.RetryQueue do
    end
  end

+  def handle_cast(:kickoff_timer, state) do
+    retry_interval = get_retry_timer_interval()
+    Process.send_after(__MODULE__, :retry_timer_run, retry_interval)
+    {:noreply, state}
+  end
+
+  def handle_cast(:inc_delivered, %{delivered: delivery_count} = state) do
+    {:noreply, %{state | delivered: delivery_count + 1}}
+  end
+
+  def handle_cast(:inc_dropped, %{dropped: drop_count} = state) do
+    {:noreply, %{state | dropped: drop_count + 1}}
+  end
+
  def handle_info({:send, data, transport, retries}, %{delivered: delivery_count} = state) do
    case transport.publish_one(data) do
      {:ok, _} ->
@ -63,12 +198,40 @@ defmodule Pleroma.Web.Federator.RetryQueue do
    end
  end

+  def handle_info(
+        :retry_timer_run,
+        %{queue_table: queue_table, running_jobs: running_jobs} = state
+      ) do
+    maybe_kickoff_timer()
+    running_jobs = maybe_start_job(running_jobs, queue_table)
+    {:noreply, %{state | running_jobs: running_jobs}}
+  end
+
+  def handle_info({:DOWN, ref, :process, _pid, _reason}, state) do
+    %{running_jobs: running_jobs, queue_table: queue_table} = state
+    running_jobs = :sets.del_element(ref, running_jobs)
+    running_jobs = maybe_start_job(running_jobs, queue_table)
+    {:noreply, %{state | running_jobs: running_jobs}}
+  end
+
  def handle_info(unknown, state) do
    Logger.debug("RetryQueue: don't know what to do with #{inspect(unknown)}, ignoring")
    {:noreply, state}
  end

-  defp growth_function(retries) do
-    round(@initial_timeout * :math.pow(retries, 3))
+  if Mix.env() == :test do
+    defp growth_function(_retries) do
+      _shutit = Pleroma.Config.get([__MODULE__, :initial_timeout])
+      DateTime.to_unix(DateTime.utc_now()) - 1
+    end
+  else
+    defp growth_function(retries) do
+      round(Pleroma.Config.get([__MODULE__, :initial_timeout]) * :math.pow(retries, 3)) +
+        DateTime.to_unix(DateTime.utc_now())
+    end
+  end
+
+  defp maybe_kickoff_timer() do
+    GenServer.cast(__MODULE__, :kickoff_timer)
  end
 end
--- a/lib/pleroma/web/gettext.ex
+++ b/lib/pleroma/web/gettext.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.Gettext do
  @moduledoc """
  A module providing Internationalization with a gettext-based API.
--- a/lib/pleroma/web/http_signatures/http_signatures.ex
+++ b/lib/pleroma/web/http_signatures/http_signatures.ex
@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 # https://tools.ietf.org/html/draft-cavage-http-signatures-08
 defmodule Pleroma.Web.HTTPSignatures do
  alias Pleroma.User
--- a/Show More
+++ b/Show More