Merge branch 'develop' of https://git.pleroma.social/pleroma/pleroma into develop

2020-03-03 11:16:59 +00:00 · 2020-03-03 11:16:59 +00:00 · 3508f698b9
commit 3508f698b9
parent 4709928b06 4c02e04935
1599 changed files with 6068 additions and 2653 deletions
--- a/.gitignore
+++ b/.gitignore
@ -48,3 +48,5 @@ docs/generated_config.md
 .idea
 pleroma.iml

+# asdf
+.tool-versions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -4,6 +4,9 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).

 ## [Unreleased]
+### Security
+- Mastodon API: Fix being able to request enourmous amount of statuses in timelines leading to DoS. Now limited to 40 per request.
+
 ### Removed
 - **Breaking**: Removed 1.0+ deprecated configurations `Pleroma.Upload, :strip_exif` and `:instance, :dedupe_media`
 - **Breaking**: OStatus protocol support
@ -35,6 +38,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Rate limiter is now disabled for localhost/socket (unless remoteip plug is enabled)
 - Logger: default log level changed from `warn` to `info`.
 - Config mix task `migrate_to_db` truncates `config` table before migrating the config file.
+- Default to `prepare: :unnamed` in the database configuration.
 <details>
  <summary>API Changes</summary>

@ -56,6 +60,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Admin API: Render whole status in grouped reports
 - Mastodon API: User timelines will now respect blocks, unless you are getting the user timeline of somebody you blocked (which would be empty otherwise).
 - Mastodon API: Favoriting / Repeating a post multiple times will now return the identical response every time. Before, executing that action twice would return an error ("already favorited") on the second try.
+- Mastodon API: Limit timeline requests to 3 per timeline per 500ms per user/ip by default.
 </details>

 ### Added
@ -75,6 +80,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - A new users admin digest email
 - OAuth: admin scopes support (relevant setting: `[:auth, :enforce_oauth_admin_scope_usage]`).
 - Add an option `authorized_fetch_mode` to require HTTP signatures for AP fetches.
+- ActivityPub: support for `replies` collection (output for outgoing federation & fetching on incoming federation).
+- Mix task to refresh counter cache (`mix pleroma.refresh_counter_cache`)
 <details>
  <summary>API Changes</summary>

@ -102,6 +109,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Configuration: `feed` option for user atom feed.
 - Pleroma API: Add Emoji reactions
 - Admin API: Add `/api/pleroma/admin/instances/:instance/statuses` - lists all statuses from a given instance
+- Admin API: Add `/api/pleroma/admin/users/:nickname/statuses` - lists all statuses from a given user
 - Admin API: `PATCH /api/pleroma/users/confirm_email` to confirm email for multiple users, `PATCH /api/pleroma/users/resend_confirmation_email` to resend confirmation email for multiple users
 - ActivityPub: Configurable `type` field of the actors.
 - Mastodon API: `/api/v1/accounts/:id` has `source/pleroma/actor_type` field.
@ -116,6 +124,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Configuration: `feed.logo` option for tag feed.
 - Tag feed: `/tags/:tag.rss` - list public statuses by hashtag.
 - Mastodon API: Add `reacted` property to `emoji_reactions`
+- Pleroma API: Add reactions for a single emoji.
+- ActivityPub: `[:activitypub, :note_replies_output_limit]` setting sets the number of note self-replies to output on outgoing federation.
+- Admin API: `GET /api/pleroma/admin/stats` to get status count by visibility scope
+- Admin API: `GET /api/pleroma/admin/statuses` - list all statuses (accepts `godmode` and `local_only`)
 </details>

 ### Fixed
--- a/config/config.exs
+++ b/config/config.exs
@ -219,6 +219,8 @@ config :pleroma, :instance,
    max_expiration: 365 * 24 * 60 * 60
  },
  registrations_open: true,
+  invites_enabled: false,
+  account_activation_required: false,
  federating: true,
  federation_incoming_replies_max_depth: 100,
  federation_reachability_timeout_days: 7,
@ -327,6 +329,7 @@ config :pleroma, :activitypub,
  unfollow_blocked: true,
  outgoing_blocks: true,
  follow_handshake_timeout: 500,
+  note_replies_output_limit: 5,
  sign_object_fetches: true,
  authorized_fetch_mode: false

@ -400,6 +403,8 @@ config :phoenix, :format_encoders, json: Jason

 config :phoenix, :json_library, Jason

+config :phoenix, :filter_parameters, ["password", "confirm"]
+
 config :pleroma, :gopher,
  enabled: false,
  ip: {0, 0, 0, 0},
@ -482,6 +487,7 @@ config :pleroma, Oban,
    transmogrifier: 20,
    scheduled_activities: 10,
    background: 5,
+    remote_fetcher: 2,
    attachments_cleanup: 5,
    new_users_digest: 1
  ],
@ -594,6 +600,7 @@ config :http_signatures,

 config :pleroma, :rate_limit,
  authentication: {60_000, 15},
+  timeline: {500, 3},
  search: [{1000, 10}, {1000, 30}],
  app_account_creation: {1_800_000, 25},
  relations_actions: {10_000, 10},
@ -618,6 +625,10 @@ config :pleroma, :modules, runtime_dir: "instance/modules"

 config :pleroma, configurable_from_database: false

+config :pleroma, Pleroma.Repo,
+  parameters: [gin_fuzzy_search_limit: "500"],
+  prepare: :unnamed
+
 # 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/description.exs
+++ b/config/description.exs
@ -662,7 +662,7 @@ config :pleroma, :config_description, [
        label: "Fed. incoming replies max depth",
        type: :integer,
        description:
-          "Max. depth of reply-to activities fetching on incoming federation, to prevent out-of-memory situations while" <>
+          "Max. depth of reply-to and reply activities fetching on incoming federation, to prevent out-of-memory situations while" <>
            " fetching very long threads. If set to `nil`, threads of any depth will be fetched. Lower this value if you experience out-of-memory crashes.",
        suggestions: [
          100
@ -1615,160 +1615,6 @@ config :pleroma, :config_description, [
      }
    ]
  },
-  %{
-    group: :pleroma,
-    key: Pleroma.Web.Endpoint,
-    type: :group,
-    description: "Phoenix endpoint configuration",
-    children: [
-      %{
-        key: :http,
-        label: "HTTP",
-        type: {:keyword, :integer, :tuple},
-        description: "http protocol configuration",
-        suggestions: [
-          port: 8080,
-          ip: {127, 0, 0, 1}
-        ],
-        children: [
-          %{
-            key: :dispatch,
-            type: {:list, :tuple},
-            description: "dispatch settings",
-            suggestions: [
-              {:_,
-               [
-                 {"/api/v1/streaming", Pleroma.Web.MastodonAPI.WebsocketHandler, []},
-                 {"/websocket", Phoenix.Endpoint.CowboyWebSocket,
-                  {Phoenix.Transports.WebSocket,
-                   {Pleroma.Web.Endpoint, Pleroma.Web.UserSocket, websocket_config}}},
-                 {:_, Phoenix.Endpoint.Cowboy2Handler, {Pleroma.Web.Endpoint, []}}
-               ]}
-              # end copied from config.exs
-            ]
-          },
-          %{
-            key: :ip,
-            label: "IP",
-            type: :tuple,
-            description: "ip",
-            suggestions: [
-              {0, 0, 0, 0}
-            ]
-          },
-          %{
-            key: :port,
-            type: :integer,
-            description: "port",
-            suggestions: [
-              2020
-            ]
-          }
-        ]
-      },
-      %{
-        key: :url,
-        label: "URL",
-        type: {:keyword, :string, :integer},
-        description: "configuration for generating urls",
-        suggestions: [
-          host: "example.com",
-          port: 2020,
-          scheme: "https"
-        ],
-        children: [
-          %{
-            key: :host,
-            type: :string,
-            description: "Host",
-            suggestions: [
-              "example.com"
-            ]
-          },
-          %{
-            key: :port,
-            type: :integer,
-            description: "port",
-            suggestions: [
-              2020
-            ]
-          },
-          %{
-            key: :scheme,
-            type: :string,
-            description: "Scheme",
-            suggestions: [
-              "https",
-              "https"
-            ]
-          }
-        ]
-      },
-      %{
-        key: :instrumenters,
-        type: {:list, :module},
-        suggestions: [Pleroma.Web.Endpoint.Instrumenter]
-      },
-      %{
-        key: :protocol,
-        type: :string,
-        suggestions: ["https"]
-      },
-      %{
-        key: :secret_key_base,
-        type: :string,
-        suggestions: ["aK4Abxf29xU9TTDKre9coZPUgevcVCFQJe/5xP/7Lt4BEif6idBIbjupVbOrbKxl"]
-      },
-      %{
-        key: :signing_salt,
-        type: :string,
-        suggestions: ["CqaoopA2"]
-      },
-      %{
-        key: :render_errors,
-        type: :keyword,
-        suggestions: [view: Pleroma.Web.ErrorView, accepts: ~w(json)],
-        children: [
-          %{
-            key: :view,
-            type: :module,
-            suggestions: [Pleroma.Web.ErrorView]
-          },
-          %{
-            key: :accepts,
-            type: {:list, :string},
-            suggestions: ["json"]
-          }
-        ]
-      },
-      %{
-        key: :pubsub,
-        type: :keyword,
-        suggestions: [name: Pleroma.PubSub, adapter: Phoenix.PubSub.PG2],
-        children: [
-          %{
-            key: :name,
-            type: :module,
-            suggestions: [Pleroma.PubSub]
-          },
-          %{
-            key: :adapter,
-            type: :module,
-            suggestions: [Phoenix.PubSub.PG2]
-          }
-        ]
-      },
-      %{
-        key: :secure_cookie_flag,
-        type: :boolean
-      },
-      %{
-        key: :extra_cookie_attrs,
-        type: {:list, :string},
-        suggestions: ["SameSite=Lax"]
-      }
-    ]
-  },
  %{
    group: :pleroma,
    key: :activitypub,
@ -1790,6 +1636,12 @@ config :pleroma, :config_description, [
        type: :boolean,
        description: "Sign object fetches with HTTP signatures"
      },
+      %{
+        key: :note_replies_output_limit,
+        type: :integer,
+        description:
+          "The number of Note replies' URIs to be included with outgoing federation (`5` to match Mastodon hardcoded value, `0` to disable the output)."
+      },
      %{
        key: :follow_handshake_timeout,
        type: :integer,
@ -2051,6 +1903,18 @@ config :pleroma, :config_description, [
            suggestions: [50]
          }
        ]
+      },
+      %{
+        key: :crontab,
+        type: {:list, :tuple},
+        description: "Settings for cron background jobs",
+        suggestions: [
+          {"0 0 * * *", Pleroma.Workers.Cron.ClearOauthTokenWorker},
+          {"0 * * * *", Pleroma.Workers.Cron.StatsWorker},
+          {"* * * * *", Pleroma.Workers.Cron.PurgeExpiredActivitiesWorker},
+          {"0 0 * * 0", Pleroma.Workers.Cron.DigestEmailsWorker},
+          {"0 0 * * *", Pleroma.Workers.Cron.NewUsersDigestWorker}
+        ]
      }
    ]
  },
@ -2588,19 +2452,6 @@ config :pleroma, :config_description, [
      }
    ]
  },
-  %{
-    group: :pleroma,
-    key: :database,
-    type: :group,
-    description: "Database related settings",
-    children: [
-      %{
-        key: :rum_enabled,
-        type: :boolean,
-        description: "If RUM indexes should be used. Default: disabled"
-      }
-    ]
-  },
  %{
    group: :pleroma,
    key: :rate_limit,
@ -2614,6 +2465,12 @@ config :pleroma, :config_description, [
        description: "For the search requests (account & status search etc.)",
        suggestions: [{1000, 10}, [{10_000, 10}, {10_000, 50}]]
      },
+      %{
+        key: :timeline,
+        type: [:tuple, {:list, :tuple}],
+        description: "For requests to timelines (each timeline has it's own limiter)",
+        suggestions: [{1000, 10}, [{10_000, 10}, {10_000, 50}]]
+      },
      %{
        key: :app_account_creation,
        type: [:tuple, {:list, :tuple}],
@ -2764,20 +2621,6 @@ config :pleroma, :config_description, [
      }
    ]
  },
-  %{
-    group: :prometheus,
-    key: Pleroma.Web.Endpoint.MetricsExporter,
-    type: :group,
-    description: "Prometheus settings",
-    children: [
-      %{
-        key: :path,
-        type: :string,
-        description: "API endpoint with metrics",
-        suggestions: ["/api/pleroma/app_metrics"]
-      }
-    ]
-  },
  %{
    group: :http_signatures,
    type: :group,
@ -3045,7 +2888,7 @@ config :pleroma, :config_description, [
    group: :pleroma,
    key: :feed,
    type: :group,
-    description: "Configure feed rendering.",
+    description: "Configure feed rendering",
    children: [
      %{
        key: :post_title,
@ -3095,7 +2938,7 @@ config :pleroma, :config_description, [
    group: :pleroma,
    key: :modules,
    type: :group,
-    description: "Custom Runtime Modules.",
+    description: "Custom Runtime Modules",
    children: [
      %{
        key: :runtime_dir,
@ -3106,14 +2949,21 @@ config :pleroma, :config_description, [
  },
  %{
    group: :pleroma,
+    key: :streamer,
    type: :group,
-    description: "Allow instance configuration from database.",
+    description: "Settings for notifications streamer",
    children: [
      %{
-        key: :configurable_from_database,
-        type: :boolean,
-        description:
-          "Allow transferring configuration to DB with the subsequent customization from Admin api. Default: disabled"
+        key: :workers,
+        type: :integer,
+        description: "Number of workers to send notifications.",
+        suggestions: [3]
+      },
+      %{
+        key: :overflow_workers,
+        type: :integer,
+        description: "Maximum number of workers created if pool is empty.",
+        suggestions: [2]
      }
    ]
  }
--- a/config/test.exs
+++ b/config/test.exs
@ -74,11 +74,7 @@ config :pleroma, Pleroma.ScheduledActivity,
  total_user_limit: 3,
  enabled: false

-config :pleroma, :rate_limit,
-  search: [{1000, 30}, {1000, 30}],
-  app_account_creation: {10_000, 5},
-  password_reset: {1000, 30},
-  ap_routes: nil
+config :pleroma, :rate_limit, %{}

 config :pleroma, :http_security, report_uri: "https://endpoint.com"

--- a/docs/API/admin_api.md
+++ b/docs/API/admin_api.md
@ -260,10 +260,24 @@ Note: Available `:permission_group` is currently moderator and admin. 404 is ret
  - `nickname` or `id`
  - *optional* `page_size`: number of statuses to return (default is `20`)
  - *optional* `godmode`: `true`/`false` – allows to see private statuses
+  - *optional* `with_reblogs`: `true`/`false` – allows to see reblogs (default is false)
 - Response:
  - On failure: `Not found`
  - On success: JSON array of user's latest statuses

+## `GET /api/pleroma/admin/instances/:instance/statuses`
+
+### Retrive instance's latest statuses
+
+- Params:
+  - `instance`: instance name
+  - *optional* `page_size`: number of statuses to return (default is `20`)
+  - *optional* `godmode`: `true`/`false` – allows to see private statuses
+  - *optional* `with_reblogs`: `true`/`false` – allows to see reblogs (default is false)
+- Response:
+  - On failure: `Not found`
+  - On success: JSON array of instance's latest statuses
+
 ## `POST /api/pleroma/admin/relay`

 ### Follow a Relay
@ -939,3 +953,20 @@ Loads json generated from `config/descriptions.exs`.
 - Params:
  - `nicknames`
 - Response: Array of user nicknames
+
+## `GET /api/pleroma/admin/stats`
+
+### Stats
+
+- Response:
+
+```json
+{
+  "status_visibility": {
+    "direct": 739,
+    "private": 9,
+    "public": 17,
+    "unlisted": 14
+  }
+}
+```
--- a/docs/API/pleroma_api.md
+++ b/docs/API/pleroma_api.md
@ -459,3 +459,16 @@ Emoji reactions work a lot like favourites do. They make it possible to react to
  {"name": "☕", "count": 1, "me": false, "accounts": [{"id" => "abc..."}]}
 ]
 ```
+
+## `GET /api/v1/pleroma/statuses/:id/reactions/:emoji`
+### Get an object of emoji to account mappings with accounts that reacted to the post for a specific emoji`
+* Method: `GET`
+* Authentication: optional
+* Params: None
+* Response: JSON, a list of emoji/account list tuples
+* Example Response:
+```json
+[
+  {"name": "😀", "count": 2, "me": true, "accounts": [{"id" => "xyz.."...}, {"id" => "zyx..."}]}
+]
+```
--- a/docs/administration/backup.md
+++ b/docs/administration/backup.md
@ -18,7 +18,9 @@
 6. Run `sudo -Hu postgres pg_restore -d <pleroma_db> -v -1 </path/to/backup_location/pleroma.pgdump>`
 7. If you installed a newer Pleroma version, you should run `mix ecto.migrate`[^1]. This task performs database migrations, if there were any.
 8. Restart the Pleroma service.
-
+9. After you've restarted Pleroma, you will notice that postgres will take up more cpu resources than usual. A lot in fact. To fix this you must do a VACUUM ANLAYZE. This can also be done while the instance is still running like so: 
+   $ sudo -u postgres psql pleroma_database_name
+   pleroma=# VACUUM ANALYZE;
 [^1]: Prefix with `MIX_ENV=prod` to run it using the production config file.

 ## Remove
--- a/docs/configuration/cheatsheet.md
+++ b/docs/configuration/cheatsheet.md
@ -2,9 +2,11 @@

 This is a cheat sheet for Pleroma configuration file, any setting possible to configure should be listed here.

-Pleroma configuration works by first importing the base config (`config/config.exs` on source installs, compiled-in on OTP releases), then overriding it by the environment config (`config/$MIX_ENV.exs` on source installs, N/A to OTP releases) and then overriding it by user config (`config/$MIX_ENV.secret.exs` on source installs, typically `/etc/pleroma/config.exs` on OTP releases).
+For OTP installations the configuration is typically stored in `/etc/pleroma/config.exs`.

-You shouldn't edit the base config directly to avoid breakages and merge conflicts, but it can be used as a reference if you don't understand how an option is supposed to be formatted, the latest version of it can be viewed [here](https://git.pleroma.social/pleroma/pleroma/blob/develop/config/config.exs).
+For from source installations Pleroma configuration works by first importing the base config `config/config.exs`, then overriding it by the environment config `config/$MIX_ENV.exs` and then overriding it by user config `config/$MIX_ENV.secret.exs`. In from source installations you should always make the changes to the user config and NEVER to the base config to avoid breakages and merge conflicts. So for production you change/add configuration to `config/prod.secret.exs`.
+
+To add configuration to your config file, you can copy it from the base config. The latest version of it can be viewed [here](https://git.pleroma.social/pleroma/pleroma/blob/develop/config/config.exs). You can also use this file if you don't know how an option is supposed to be formatted.

 ## :instance
 * `name`: The instance’s name.
@ -150,8 +152,12 @@ config :pleroma, :mrf_user_allowlist,
 * `authorized_fetch_mode`: Require HTTP signatures for AP fetches

 ### :fetch_initial_posts
-* `enabled`: if enabled, when a new user is federated with, fetch some of their latest posts
-* `pages`: the amount of pages to fetch
+
+!!! warning
+    Be careful with this setting, fetching posts may lead to new users being discovered whose posts will then also be fetched. This can lead to serious load on your instance and database.
+
+* `enabled`: If enabled, when a new user is discovered by your instance, fetch some of their latest posts.
+* `pages`: The amount of pages to fetch

 ## Pleroma.ScheduledActivity

@ -343,6 +349,7 @@ Means that:
 Supported rate limiters:

 * `:search` - Account/Status search.
+* `:timeline` - Timeline requests (each timeline has it's own limiter).
 * `:app_account_creation` - Account registration from the API.
 * `:relations_actions` - Following/Unfollowing in general.
 * `:relation_id_action` - Following/Unfollowing for a specific user.
--- a/docs/configuration/howto_theming_your_instance.md
+++ b/docs/configuration/howto_theming_your_instance.md
@ -0,0 +1,74 @@
+# Theming your instance
+
+To add a custom theme to your instance, you'll first need to get a custom theme, upload it to the server, make it available to the instance and eventually you can set it as default.
+
+## Getting a custom theme
+
+### Create your own theme
+
+* You can create your own theme using the Pleroma FE by going to settings (gear on the top right) and choose the Theme tab. Here you have the options to create a personal theme.
+* To download your theme, you can do Save preset
+* If you want to upload a theme to customise it further, you can upload it using Load preset
+
+This will only save the theme for you personally. To make it available to the whole instance, you'll need to upload it to the server.
+
+### Get an existing theme
+
+* You can download a theme from another instance by going to that instance, go to settings and make sure you have the theme selected that you want. Then you can do Save preset to download it.
+* You can also find and download custom themes at <https://plthemes.vulpes.one/>
+
+## Adding the custom theme to the instance
+
+### Upload the theme to the server
+
+Themes can be found in the [static directory](static_dir.md). Create `STATIC-DIR/static/themes/` if needed and copy your theme there. Next you need to add an entry for your theme to `STATIC-DIR/static/styles.json`. If you use a from source installation, you'll first need to copy the file from `priv/static/static/styles.json`.
+
+Example of `styles.json` where we add our own `my-awesome-theme.json`
+```json
+{
+  "pleroma-dark": [ "Pleroma Dark", "#121a24", "#182230", "#b9b9ba", "#d8a070", "#d31014", "#0fa00f", "#0095ff", "#ffa500" ],
+  "pleroma-light": [ "Pleroma Light", "#f2f4f6", "#dbe0e8", "#304055", "#f86f0f", "#d31014", "#0fa00f", "#0095ff", "#ffa500" ],
+  "classic-dark": [ "Classic Dark", "#161c20", "#282e32", "#b9b9b9", "#baaa9c", "#d31014", "#0fa00f", "#0095ff", "#ffa500" ],
+  "bird": [ "Bird", "#f8fafd", "#e6ecf0", "#14171a", "#0084b8", "#e0245e", "#17bf63", "#1b95e0", "#fab81e"],
+  "ir-black": [ "Ir Black", "#000000", "#242422", "#b5b3aa", "#ff6c60", "#FF6C60", "#A8FF60", "#96CBFE", "#FFFFB6" ],
+  "monokai": [ "Monokai", "#272822", "#383830", "#f8f8f2", "#f92672", "#F92672", "#a6e22e", "#66d9ef", "#f4bf75" ],
+
+  "redmond-xx": "/static/themes/redmond-xx.json",
+  "redmond-xx-se": "/static/themes/redmond-xx-se.json",
+  "redmond-xxi": "/static/themes/redmond-xxi.json",
+  "breezy-dark": "/static/themes/breezy-dark.json",
+  "breezy-light": "/static/themes/breezy-light.json",
+  "mammal": "/static/themes/mammal.json",
+  "my-awesome-theme": "/static/themes/my-awesome-theme.json"
+}
+```
+
+Now you'll already be able to select the theme in Pleroma FE from the drop-down. You don't need to restart Pleroma because we only changed static served files. You may need to refresh the page in your browser. You'll notice however that the theme doesn't have a name, it's just an empty entry in the drop-down.
+
+### Give the theme a name
+
+When you open one of the themes that ship with Pleroma, you'll notice that the json has a `"name"` key. Add a key-value pair to your theme where the key name is `"name"` and the value the name you want to give your theme. After this you can refresh te page in your browser and the name should be visible in the drop-down.
+
+Example of `my-awesome-theme.json` where we add the name "My Awesome Theme"
+```json
+{
+  "_pleroma_theme_version": 2,
+  "name": "My Awesome Theme",
+  "theme": {}
+}
+```
+
+### Set as default theme
+
+Now we can set the new theme as default in the [Pleroma FE configuration](General-tips-for-customizing-Pleroma-FE.md).
+
+Example of adding the new theme in the back-end config files
+```elixir
+config :pleroma, :frontend_configurations,
+  pleroma_fe: %{
+    theme: "my-awesome-theme"
+  }
+```
+
+If you added it in the back-end configuration file, you'll need to restart your instance for the changes to take effect. If you don't see the changes, it's probably because the browser has cached the previous theme. In that case you'll want to clear browser caches. Alternatively you can use a private/incognito window just to see the changes.
+
--- a/docs/configuration/i2p.md
+++ b/docs/configuration/i2p.md
@ -123,7 +123,7 @@ In addition to that, replace the existing nginx config's contents with the examp

 If not an I2P-only instance, add the nginx config below to your existing config at `/etc/nginx/sites-enabled/pleroma.nginx`.

-And for both cases, disable CSP in Pleroma's config (STS is disabled by default) so you can define those yourself seperately from the clearnet (if your instance is also on the clearnet).
+And for both cases, disable CSP in Pleroma's config (STS is disabled by default) so you can define those yourself separately from the clearnet (if your instance is also on the clearnet).
 Copy the following into the `config/prod.secret.exs` in your Pleroma folder (/home/pleroma/pleroma/):
 ```
 config :pleroma, :http_security,
--- a/docs/configuration/onion_federation.md
+++ b/docs/configuration/onion_federation.md
@ -75,7 +75,7 @@ If not a Tor-only instance,
 add the nginx config below to your existing config at `/etc/nginx/sites-enabled/pleroma.nginx`.

 ---
-For both cases, disable CSP in Pleroma's config (STS is disabled by default) so you can define those yourself seperately from the clearnet (if your instance is also on the clearnet).
+For both cases, disable CSP in Pleroma's config (STS is disabled by default) so you can define those yourself separately from the clearnet (if your instance is also on the clearnet).
 Copy the following into the `config/prod.secret.exs` in your Pleroma folder (/home/pleroma/pleroma/):
 ```
 config :pleroma, :http_security,
--- a/docs/installation/otp_en.md
+++ b/docs/installation/otp_en.md
@ -73,6 +73,15 @@ rc-service postgresql restart
 systemctl restart postgresql
 ```

+If you are using PostgreSQL 12 or higher, add this to your Ecto database configuration
+
+```elixir
+prepare: :named,
+parameters: [
+  plan_cache_mode: "force_custom_plan"
+]
+```
+
 ### Installing Pleroma
 ```sh
 # Create a Pleroma user
--- a/docs/introduction.md
+++ b/docs/introduction.md
@ -41,7 +41,7 @@ On the top right you will also see a wrench icon. This opens your personal setti
 This is where the interesting stuff happens!
 Depending on the timeline you will see different statuses, but each status has a standard structure:

- Profile pic, name and link to profile. An optional left-arrow if it's a reply to another status (hovering will reveal the replied-to status). Clicking on the profile pic will uncollapse the user's profile.
+- Profile pic, name and link to profile. An optional left-arrow if it's a reply to another status (hovering will reveal the reply-to status). Clicking on the profile pic will uncollapse the user's profile.
 - A `+` button on the right allows you to Expand/Collapse an entire discussion thread. It also updates in realtime!
 - An arrow icon allows you to open the status on the instance where it's originating from.
 - The text of the status, including mentions and attachements. If you click on a mention, it will automatically open the profile page of that person.
--- a/lib/mix/tasks/pleroma/config.ex
+++ b/lib/mix/tasks/pleroma/config.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Mix.Tasks.Pleroma.Config do
--- a/lib/mix/tasks/pleroma/emoji.ex
+++ b/lib/mix/tasks/pleroma/emoji.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Mix.Tasks.Pleroma.Emoji do
@ -186,11 +186,7 @@ defmodule Mix.Tasks.Pleroma.Emoji do

    tmp_pack_dir = Path.join(System.tmp_dir!(), "emoji-pack-#{name}")

-    {:ok, _} =
-      :zip.unzip(
-        binary_archive,
-        cwd: tmp_pack_dir
-      )
+    {:ok, _} = :zip.unzip(binary_archive, cwd: String.to_charlist(tmp_pack_dir))

    emoji_map = Pleroma.Emoji.Loader.make_shortcode_to_file_map(tmp_pack_dir, exts)

--- a/lib/mix/tasks/pleroma/instance.ex
+++ b/lib/mix/tasks/pleroma/instance.ex
@ -1,11 +1,13 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Mix.Tasks.Pleroma.Instance do
  use Mix.Task
  import Mix.Pleroma

+  alias Pleroma.Config
+
  @shortdoc "Manages Pleroma instance"
  @moduledoc File.read!("docs/administration/CLI_tasks/instance.md")

@ -63,7 +65,8 @@ defmodule Mix.Tasks.Pleroma.Instance do
        get_option(
          options,
          :instance_name,
-          "What is the name of your instance? (e.g. Pleroma/Soykaf)"
+          "What is the name of your instance? (e.g. The Corndog Emporium)",
+          domain
        )

      email = get_option(options, :admin_email, "What is your admin email address?")
@ -153,6 +156,8 @@ defmodule Mix.Tasks.Pleroma.Instance do
          Pleroma.Config.get([:instance, :static_dir])
        )

+      Config.put([:instance, :static_dir], static_dir)
+
      secret = :crypto.strong_rand_bytes(64) |> Base.encode64() |> binary_part(0, 64)
      jwt_secret = :crypto.strong_rand_bytes(64) |> Base.encode64() |> binary_part(0, 64)
      signing_salt = :crypto.strong_rand_bytes(8) |> Base.encode64() |> binary_part(0, 8)
@ -202,8 +207,14 @@ defmodule Mix.Tasks.Pleroma.Instance do
      write_robots_txt(indexable, template_dir)

      shell_info(
-        "\n All files successfully written! Refer to the installation instructions for your platform for next steps"
+        "\n All files successfully written! Refer to the installation instructions for your platform for next steps."
      )
+
+      if db_configurable? do
+        shell_info(
+          " Please transfer your config to the database after running database migrations. Refer to \"Transfering the config to/from the database\" section of the docs for more information."
+        )
+      end
    else
      shell_error(
        "The task would have overwritten the following files:\n" <>
--- a/lib/mix/tasks/pleroma/refresh_counter_cache.ex
+++ b/lib/mix/tasks/pleroma/refresh_counter_cache.ex
@ -0,0 +1,46 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Mix.Tasks.Pleroma.RefreshCounterCache do
+  @shortdoc "Refreshes counter cache"
+
+  use Mix.Task
+
+  alias Pleroma.Activity
+  alias Pleroma.CounterCache
+  alias Pleroma.Repo
+
+  require Logger
+  import Ecto.Query
+
+  def run([]) do
+    Mix.Pleroma.start_pleroma()
+
+    ["public", "unlisted", "private", "direct"]
+    |> Enum.each(fn visibility ->
+      count = status_visibility_count_query(visibility)
+      name = "status_visibility_#{visibility}"
+      CounterCache.set(name, count)
+      Mix.Pleroma.shell_info("Set #{name} to #{count}")
+    end)
+
+    Mix.Pleroma.shell_info("Done")
+  end
+
+  defp status_visibility_count_query(visibility) do
+    Activity
+    |> where(
+      [a],
+      fragment(
+        "activity_visibility(?, ?, ?) = ?",
+        a.actor,
+        a.recipients,
+        a.data,
+        ^visibility
+      )
+    )
+    |> where([a], fragment("(? ->> 'type'::text) = 'Create'", a.data))
+    |> Repo.aggregate(:count, :id, timeout: :timer.minutes(30))
+  end
+end
--- a/lib/mix/tasks/pleroma/robotstxt.ex
+++ b/lib/mix/tasks/pleroma/robotstxt.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Mix.Tasks.Pleroma.RobotsTxt do
--- a/lib/mix/tasks/pleroma/user.ex
+++ b/lib/mix/tasks/pleroma/user.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Mix.Tasks.Pleroma.User do
@ -100,8 +100,7 @@ defmodule Mix.Tasks.Pleroma.User do
      User.perform(:delete, user)
      shell_info("User #{nickname} deleted.")
    else
-      _ ->
-        shell_error("No local user #{nickname}")
+      _ -> shell_error("No local user #{nickname}")
    end
  end

--- a/lib/pleroma/activity.ex
+++ b/lib/pleroma/activity.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Activity do
@ -310,7 +310,7 @@ defmodule Pleroma.Activity do

  def restrict_deactivated_users(query) do
    deactivated_users =
-      from(u in User.Query.build(deactivated: true), select: u.ap_id)
+      from(u in User.Query.build(%{deactivated: true}), select: u.ap_id)
      |> Repo.all()

    Activity.Queries.exclude_authors(query, deactivated_users)
--- a/lib/pleroma/activity/queries.ex
+++ b/lib/pleroma/activity/queries.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Activity.Queries do
@ -7,7 +7,7 @@ defmodule Pleroma.Activity.Queries do
  Contains queries for Activity.
  """

-  import Ecto.Query, only: [from: 2]
+  import Ecto.Query, only: [from: 2, where: 3]

  @type query :: Ecto.Queryable.t() | Activity.t()

@ -30,7 +30,7 @@ defmodule Pleroma.Activity.Queries do
    )
  end

-  @spec by_author(query, String.t()) :: query
+  @spec by_author(query, User.t()) :: query
  def by_author(query \\ Activity, %User{ap_id: ap_id}) do
    from(a in query, where: a.actor == ^ap_id)
  end
@ -63,6 +63,22 @@ defmodule Pleroma.Activity.Queries do
    )
  end

+  @spec by_object_in_reply_to_id(query, String.t(), keyword()) :: query
+  def by_object_in_reply_to_id(query, in_reply_to_id, opts \\ []) do
+    query =
+      if opts[:skip_preloading] do
+        Activity.with_joined_object(query)
+      else
+        Activity.with_preloaded_object(query)
+      end
+
+    where(
+      query,
+      [activity, object: o],
+      fragment("(?)->>'inReplyTo' = ?", o.data, ^to_string(in_reply_to_id))
+    )
+  end
+
  @spec by_type(query, String.t()) :: query
  def by_type(query \\ Activity, activity_type) do
    from(
--- a/lib/pleroma/activity/search.ex
+++ b/lib/pleroma/activity/search.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Activity.Search do
--- a/lib/pleroma/activity_expiration.ex
+++ b/lib/pleroma/activity_expiration.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.ActivityExpiration do
--- a/lib/pleroma/application.ex
+++ b/lib/pleroma/application.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Application do
--- a/lib/pleroma/captcha/captcha.ex
+++ b/lib/pleroma/captcha/captcha.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Captcha do
@ -50,7 +50,7 @@ defmodule Pleroma.Captcha do
      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
+      # Basically 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 =
        %{
@ -62,7 +62,7 @@ defmodule Pleroma.Captcha do

      {
        :reply,
-        # Repalce the answer with the encrypted answer
+        # Replace the answer with the encrypted answer
        %{new_captcha | answer_data: encrypted_captcha_answer},
        state
      }
@ -82,7 +82,8 @@ defmodule Pleroma.Captcha do
    valid_if_after = DateTime.subtract!(DateTime.now_utc(), seconds_valid)

    result =
-      with {:ok, data} <- MessageEncryptor.decrypt(answer_data, secret, sign_secret),
+      with false <- is_nil(answer_data),
+           {: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),
--- a/lib/pleroma/captcha/native.ex
+++ b/lib/pleroma/captcha/native.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Captcha.Native do
@ -10,8 +10,8 @@ defmodule Pleroma.Captcha.Native do
  @impl Service
  def new do
    case Captcha.get() do
-      {:timeout} ->
-        %{error: dgettext("errors", "Captcha timeout")}
+      :error ->
+        %{error: dgettext("errors", "Captcha error")}

      {:ok, answer_data, img_binary} ->
        %{
--- a/lib/pleroma/config/config_db.ex
+++ b/lib/pleroma/config/config_db.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.ConfigDB do
--- a/lib/pleroma/config/holder.ex
+++ b/lib/pleroma/config/holder.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Config.Holder do
--- a/lib/pleroma/config/loader.ex
+++ b/lib/pleroma/config/loader.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Config.Loader do
--- a/lib/pleroma/config/transfer_task.ex
+++ b/lib/pleroma/config/transfer_task.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Config.TransferTask do
--- a/lib/pleroma/conversation/participation.ex
+++ b/lib/pleroma/conversation/participation.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Conversation.Participation do
@ -133,10 +133,8 @@ defmodule Pleroma.Conversation.Participation do
      [user.id | user_ids]
      |> Enum.uniq()
      |> Enum.reduce([], fn user_id, acc ->
-        case FlakeId.Ecto.CompatType.dump(user_id) do
-          {:ok, user_id} -> [user_id | acc]
-          _ -> acc
-        end
+        {:ok, user_id} = FlakeId.Ecto.CompatType.dump(user_id)
+        [user_id | acc]
      end)

    conversation_subquery =
--- a/lib/pleroma/counter_cache.ex
+++ b/lib/pleroma/counter_cache.ex
@ -0,0 +1,41 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.CounterCache do
+  alias Pleroma.CounterCache
+  alias Pleroma.Repo
+  use Ecto.Schema
+  import Ecto.Changeset
+  import Ecto.Query
+
+  schema "counter_cache" do
+    field(:name, :string)
+    field(:count, :integer)
+  end
+
+  def changeset(struct, params) do
+    struct
+    |> cast(params, [:name, :count])
+    |> validate_required([:name])
+    |> unique_constraint(:name)
+  end
+
+  def get_as_map(names) when is_list(names) do
+    CounterCache
+    |> where([cc], cc.name in ^names)
+    |> Repo.all()
+    |> Enum.group_by(& &1.name, & &1.count)
+    |> Map.new(fn {k, v} -> {k, hd(v)} end)
+  end
+
+  def set(name, count) do
+    %CounterCache{}
+    |> changeset(%{"name" => name, "count" => count})
+    |> Repo.insert(
+      on_conflict: [set: [count: count]],
+      returning: true,
+      conflict_target: :name
+    )
+  end
+end
--- a/lib/pleroma/emails/admin_email.ex
+++ b/lib/pleroma/emails/admin_email.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Emails.AdminEmail do
--- a/lib/pleroma/following_relationship.ex
+++ b/lib/pleroma/following_relationship.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.FollowingRelationship do
--- a/lib/pleroma/formatter.ex
+++ b/lib/pleroma/formatter.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Formatter do
--- a/lib/pleroma/html.ex
+++ b/lib/pleroma/html.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.HTML do
--- a/lib/pleroma/mime.ex
+++ b/lib/pleroma/mime.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.MIME do
@ -9,7 +9,7 @@ defmodule Pleroma.MIME do
  @default "application/octet-stream"
  @read_bytes 35

-  @spec file_mime_type(String.t()) ::
+  @spec file_mime_type(String.t(), String.t()) ::
          {:ok, content_type :: String.t(), filename :: String.t()} | {:error, any()} | :error
  def file_mime_type(path, filename) do
    with {:ok, content_type} <- file_mime_type(path),
--- a/lib/pleroma/notification.ex
+++ b/lib/pleroma/notification.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Notification do
--- a/lib/pleroma/object.ex
+++ b/lib/pleroma/object.ex
@ -1,10 +1,13 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Object do
  use Ecto.Schema

+  import Ecto.Query
+  import Ecto.Changeset
+
  alias Pleroma.Activity
  alias Pleroma.Object
  alias Pleroma.Object.Fetcher
@ -12,9 +15,6 @@ defmodule Pleroma.Object do
  alias Pleroma.Repo
  alias Pleroma.User

-  import Ecto.Query
-  import Ecto.Changeset
-
  require Logger

  @type t() :: %__MODULE__{}
@ -145,18 +145,18 @@ defmodule Pleroma.Object do
  # Legacy objects can be mutated by anybody
  def authorize_mutation(%Object{}, %User{}), do: true

+  @spec get_cached_by_ap_id(String.t()) :: Object.t() | nil
  def get_cached_by_ap_id(ap_id) do
    key = "object:#{ap_id}"

-    Cachex.fetch!(:object_cache, key, fn _ ->
-      object = get_by_ap_id(ap_id)
-
-      if object do
-        {:commit, object}
-      else
-        {:ignore, object}
-      end
-    end)
+    with {:ok, nil} <- Cachex.get(:object_cache, key),
+         object when not is_nil(object) <- get_by_ap_id(ap_id),
+         {:ok, true} <- Cachex.put(:object_cache, key, object) do
+      object
+    else
+      {:ok, object} -> object
+      nil -> nil
+    end
  end

  def context_mapping(context) do
@ -301,4 +301,26 @@ defmodule Pleroma.Object do
  def local?(%Object{data: %{"id" => id}}) do
    String.starts_with?(id, Pleroma.Web.base_url() <> "/")
  end
+
+  def replies(object, opts \\ []) do
+    object = Object.normalize(object)
+
+    query =
+      Object
+      |> where(
+        [o],
+        fragment("(?)->>'inReplyTo' = ?", o.data, ^object.data["id"])
+      )
+      |> order_by([o], asc: o.id)
+
+    if opts[:self_only] do
+      actor = object.data["actor"]
+      where(query, [o], fragment("(?)->>'actor' = ?", o.data, ^actor))
+    else
+      query
+    end
+  end
+
+  def self_replies(object, opts \\ []),
+    do: replies(object, Keyword.put(opts, :self_only, true))
 end
--- a/lib/pleroma/object/containment.ex
+++ b/lib/pleroma/object/containment.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Object.Containment do
@ -39,15 +39,8 @@ defmodule Pleroma.Object.Containment do
    defp compare_uris(_, %URI{scheme: "tag"}), do: :ok
  end

-  defp compare_uris(%URI{} = id_uri, %URI{} = other_uri) do
-    if id_uri.host == other_uri.host do
-      :ok
-    else
-      :error
-    end
-  end
-
-  defp compare_uris(_, _), do: :error
+  defp compare_uris(%URI{host: host} = _id_uri, %URI{host: host} = _other_uri), do: :ok
+  defp compare_uris(_id_uri, _other_uri), do: :error

  @doc """
  Checks that an imported AP object's actor matches the domain it came from.
--- a/lib/pleroma/object/fetcher.ex
+++ b/lib/pleroma/object/fetcher.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Object.Fetcher do
@ -10,6 +10,7 @@ defmodule Pleroma.Object.Fetcher do
  alias Pleroma.Signature
  alias Pleroma.Web.ActivityPub.InternalFetchActor
  alias Pleroma.Web.ActivityPub.Transmogrifier
+  alias Pleroma.Web.Federator

  require Logger
  require Pleroma.Constants
@ -59,20 +60,23 @@ defmodule Pleroma.Object.Fetcher do
    end
  end

-  # TODO:
-  # This will create a Create activity, which we need internally at the moment.
+  # Note: will create a Create activity, which we need internally at the moment.
  def fetch_object_from_id(id, options \\ []) do
-    with {:fetch_object, nil} <- {:fetch_object, Object.get_cached_by_ap_id(id)},
-         {:fetch, {:ok, data}} <- {:fetch, fetch_and_contain_remote_object_from_id(id)},
-         {:normalize, nil} <- {:normalize, Object.normalize(data, false)},
+    with {_, nil} <- {:fetch_object, Object.get_cached_by_ap_id(id)},
+         {_, true} <- {:allowed_depth, Federator.allowed_thread_distance?(options[:depth])},
+         {_, {:ok, data}} <- {:fetch, fetch_and_contain_remote_object_from_id(id)},
+         {_, nil} <- {:normalize, Object.normalize(data, false)},
         params <- prepare_activity_params(data),
-         {:containment, :ok} <- {:containment, Containment.contain_origin(id, params)},
-         {:transmogrifier, {:ok, activity}} <-
+         {_, :ok} <- {:containment, Containment.contain_origin(id, params)},
+         {_, {:ok, activity}} <-
           {:transmogrifier, Transmogrifier.handle_incoming(params, options)},
-         {:object, _data, %Object{} = object} <-
+         {_, _data, %Object{} = object} <-
           {:object, data, Object.normalize(activity, false)} do
      {:ok, object}
    else
+      {:allowed_depth, false} ->
+        {:error, "Max thread distance exceeded."}
+
      {:containment, _} ->
        {:error, "Object containment failed."}

--- a/lib/pleroma/pagination.ex
+++ b/lib/pleroma/pagination.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Pagination do
@ -12,11 +12,15 @@ defmodule Pleroma.Pagination do

  alias Pleroma.Repo

+  @type type :: :keyset | :offset
+
  @default_limit 20
+  @max_limit 40
  @page_keys ["max_id", "min_id", "limit", "since_id", "order"]

  def page_keys, do: @page_keys

+  @spec fetch_paginated(Ecto.Query.t(), map(), type(), atom() | nil) :: [Ecto.Schema.t()]
  def fetch_paginated(query, params, type \\ :keyset, table_binding \\ nil)

  def fetch_paginated(query, %{"total" => true} = params, :keyset, table_binding) do
@ -57,6 +61,7 @@ defmodule Pleroma.Pagination do
    |> Repo.all()
  end

+  @spec paginate(Ecto.Query.t(), map(), type(), atom() | nil) :: [Ecto.Schema.t()]
  def paginate(query, options, method \\ :keyset, table_binding \\ nil)

  def paginate(query, options, :keyset, table_binding) do
@ -130,7 +135,11 @@ defmodule Pleroma.Pagination do
  end

  defp restrict(query, :limit, options, _table_binding) do
-    limit = Map.get(options, :limit, @default_limit)
+    limit =
+      case Map.get(options, :limit, @default_limit) do
+        limit when limit < @max_limit -> limit
+        _ -> @max_limit
+      end

    query
    |> limit(^limit)
--- a/lib/pleroma/plugs/http_security_plug.ex
+++ b/lib/pleroma/plugs/http_security_plug.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Plugs.HTTPSecurityPlug do
--- a/lib/pleroma/plugs/http_signature.ex
+++ b/lib/pleroma/plugs/http_signature.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.Plugs.HTTPSignaturePlug do
--- a/lib/pleroma/plugs/oauth_scopes_plug.ex
+++ b/lib/pleroma/plugs/oauth_scopes_plug.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Plugs.OAuthScopesPlug do
--- a/lib/pleroma/plugs/rate_limiter/limiter_supervisor.ex
+++ b/lib/pleroma/plugs/rate_limiter/limiter_supervisor.ex
@ -7,8 +7,8 @@ defmodule Pleroma.Plugs.RateLimiter.LimiterSupervisor do
    DynamicSupervisor.start_link(__MODULE__, init_arg, name: __MODULE__)
  end

-  def add_limiter(limiter_name, expiration) do
-    {:ok, _pid} =
+  def add_or_return_limiter(limiter_name, expiration) do
+    result =
      DynamicSupervisor.start_child(
        __MODULE__,
        %{
@ -28,6 +28,12 @@ defmodule Pleroma.Plugs.RateLimiter.LimiterSupervisor do
             ]}
        }
      )
+
+    case result do
+      {:ok, _pid} = result -> result
+      {:error, {:already_started, pid}} -> {:ok, pid}
+      _ -> result
+    end
  end

  @impl true
--- a/lib/pleroma/plugs/rate_limiter/rate_limiter.ex
+++ b/lib/pleroma/plugs/rate_limiter/rate_limiter.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Plugs.RateLimiter do
@ -7,12 +7,14 @@ defmodule Pleroma.Plugs.RateLimiter do

  ## Configuration

-  A keyword list of rate limiters where a key is a limiter name and value is the limiter configuration. The basic configuration is a tuple where:
+  A keyword list of rate limiters where a key is a limiter name and value is the limiter configuration.
+  The basic configuration is a tuple where:

  * The first element: `scale` (Integer). The time scale in milliseconds.
  * The second element: `limit` (Integer). How many requests to limit in the time scale provided.

-  It is also possible to have different limits for unauthenticated and authenticated users: the keyword value must be a list of two tuples where the first one is a config for unauthenticated users and the second one is for authenticated.
+  It is also possible to have different limits for unauthenticated and authenticated users: the keyword value must be a
+  list of two tuples where the first one is a config for unauthenticated users and the second one is for authenticated.

  To disable a limiter set its value to `nil`.

@ -64,91 +66,102 @@ defmodule Pleroma.Plugs.RateLimiter do
  import Pleroma.Web.TranslationHelpers
  import Plug.Conn

+  alias Pleroma.Config
  alias Pleroma.Plugs.RateLimiter.LimiterSupervisor
  alias Pleroma.User

  require Logger

-  def init(opts) do
-    limiter_name = Keyword.get(opts, :name)
+  @doc false
+  def init(plug_opts) do
+    plug_opts
+  end

-    case Pleroma.Config.get([:rate_limit, limiter_name]) do
-      nil ->
-        nil
-
-      config ->
-        name_root = Keyword.get(opts, :bucket_name, limiter_name)
-
-        %{
-          name: name_root,
-          limits: config,
-          opts: opts
-        }
+  def call(conn, plug_opts) do
+    if disabled?() do
+      handle_disabled(conn)
+    else
+      action_settings = action_settings(plug_opts)
+      handle(conn, action_settings)
    end
  end

-  # Do not limit if there is no limiter configuration
-  def call(conn, nil), do: conn
+  defp handle_disabled(conn) do
+    if Config.get(:env) == :prod do
+      Logger.warn("Rate limiter is disabled for localhost/socket")
+    end

-  def call(conn, settings) do
-    case disabled?() do
-      true ->
-        if Pleroma.Config.get(:env) == :prod,
-          do: Logger.warn("Rate limiter is disabled for localhost/socket")
+    conn
+  end

+  defp handle(conn, nil), do: conn
+
+  defp handle(conn, action_settings) do
+    action_settings
+    |> incorporate_conn_info(conn)
+    |> check_rate()
+    |> case do
+      {:ok, _count} ->
        conn

-      false ->
-        settings
-        |> incorporate_conn_info(conn)
-        |> check_rate()
-        |> case do
-          {:ok, _count} ->
-            conn
-
-          {:error, _count} ->
-            render_throttled_error(conn)
-        end
+      {:error, _count} ->
+        render_throttled_error(conn)
    end
  end

  def disabled? do
    localhost_or_socket =
-      Pleroma.Config.get([Pleroma.Web.Endpoint, :http, :ip])
+      Config.get([Pleroma.Web.Endpoint, :http, :ip])
      |> Tuple.to_list()
      |> Enum.join(".")
      |> String.match?(~r/^local|^127.0.0.1/)

-    remote_ip_disabled = not Pleroma.Config.get([Pleroma.Plugs.RemoteIp, :enabled])
+    remote_ip_disabled = not Config.get([Pleroma.Plugs.RemoteIp, :enabled])

    localhost_or_socket and remote_ip_disabled
  end

-  def inspect_bucket(conn, name_root, settings) do
-    settings =
-      settings
-      |> incorporate_conn_info(conn)
+  @inspect_bucket_not_found {:error, :not_found}

-    bucket_name = make_bucket_name(%{settings | name: name_root})
-    key_name = make_key_name(settings)
-    limit = get_limits(settings)
+  def inspect_bucket(conn, bucket_name_root, plug_opts) do
+    with %{name: _} = action_settings <- action_settings(plug_opts) do
+      action_settings = incorporate_conn_info(action_settings, conn)
+      bucket_name = make_bucket_name(%{action_settings | name: bucket_name_root})
+      key_name = make_key_name(action_settings)
+      limit = get_limits(action_settings)

-    case Cachex.get(bucket_name, key_name) do
-      {:error, :no_cache} ->
-        {:err, :not_found}
+      case Cachex.get(bucket_name, key_name) do
+        {:error, :no_cache} ->
+          @inspect_bucket_not_found

-      {:ok, nil} ->
-        {0, limit}
+        {:ok, nil} ->
+          {0, limit}

-      {:ok, value} ->
-        {value, limit - value}
+        {:ok, value} ->
+          {value, limit - value}
+      end
+    else
+      _ -> @inspect_bucket_not_found
    end
  end

-  defp check_rate(settings) do
-    bucket_name = make_bucket_name(settings)
-    key_name = make_key_name(settings)
-    limit = get_limits(settings)
+  def action_settings(plug_opts) do
+    with limiter_name when is_atom(limiter_name) <- plug_opts[:name],
+         limits when not is_nil(limits) <- Config.get([:rate_limit, limiter_name]) do
+      bucket_name_root = Keyword.get(plug_opts, :bucket_name, limiter_name)
+
+      %{
+        name: bucket_name_root,
+        limits: limits,
+        opts: plug_opts
+      }
+    end
+  end
+
+  defp check_rate(action_settings) do
+    bucket_name = make_bucket_name(action_settings)
+    key_name = make_key_name(action_settings)
+    limit = get_limits(action_settings)

    case Cachex.get_and_update(bucket_name, key_name, &increment_value(&1, limit)) do
      {:commit, value} ->
@ -158,8 +171,8 @@ defmodule Pleroma.Plugs.RateLimiter do
        {:error, value}

      {:error, :no_cache} ->
-        initialize_buckets(settings)
-        check_rate(settings)
+        initialize_buckets!(action_settings)
+        check_rate(action_settings)
    end
  end

@ -169,16 +182,19 @@ defmodule Pleroma.Plugs.RateLimiter do

  defp increment_value(val, _limit), do: {:commit, val + 1}

-  defp incorporate_conn_info(settings, %{assigns: %{user: %User{id: user_id}}, params: params}) do
-    Map.merge(settings, %{
+  defp incorporate_conn_info(action_settings, %{
+         assigns: %{user: %User{id: user_id}},
+         params: params
+       }) do
+    Map.merge(action_settings, %{
      mode: :user,
      conn_params: params,
      conn_info: "#{user_id}"
    })
  end

-  defp incorporate_conn_info(settings, %{params: params} = conn) do
-    Map.merge(settings, %{
+  defp incorporate_conn_info(action_settings, %{params: params} = conn) do
+    Map.merge(action_settings, %{
      mode: :anon,
      conn_params: params,
      conn_info: "#{ip(conn)}"
@ -197,10 +213,10 @@ defmodule Pleroma.Plugs.RateLimiter do
    |> halt()
  end

-  defp make_key_name(settings) do
+  defp make_key_name(action_settings) do
    ""
-    |> attach_params(settings)
-    |> attach_identity(settings)
+    |> attach_selected_params(action_settings)
+    |> attach_identity(action_settings)
  end

  defp get_scale(_, {scale, _}), do: scale
@ -215,28 +231,35 @@ defmodule Pleroma.Plugs.RateLimiter do

  defp get_limits(%{limits: [{_, limit}, _]}), do: limit

-  defp make_bucket_name(%{mode: :user, name: name_root}),
-    do: user_bucket_name(name_root)
+  defp make_bucket_name(%{mode: :user, name: bucket_name_root}),
+    do: user_bucket_name(bucket_name_root)

-  defp make_bucket_name(%{mode: :anon, name: name_root}),
-    do: anon_bucket_name(name_root)
+  defp make_bucket_name(%{mode: :anon, name: bucket_name_root}),
+    do: anon_bucket_name(bucket_name_root)

-  defp attach_params(input, %{conn_params: conn_params, opts: opts}) do
-    param_string =
-      opts
+  defp attach_selected_params(input, %{conn_params: conn_params, opts: plug_opts}) do
+    params_string =
+      plug_opts
      |> Keyword.get(:params, [])
      |> Enum.sort()
      |> Enum.map(&Map.get(conn_params, &1, ""))
      |> Enum.join(":")

-    "#{input}#{param_string}"
+    [input, params_string]
+    |> Enum.join(":")
+    |> String.replace_leading(":", "")
  end

-  defp initialize_buckets(%{name: _name, limits: nil}), do: :ok
+  defp initialize_buckets!(%{name: _name, limits: nil}), do: :ok

-  defp initialize_buckets(%{name: name, limits: limits}) do
-    LimiterSupervisor.add_limiter(anon_bucket_name(name), get_scale(:anon, limits))
-    LimiterSupervisor.add_limiter(user_bucket_name(name), get_scale(:user, limits))
+  defp initialize_buckets!(%{name: name, limits: limits}) do
+    {:ok, _pid} =
+      LimiterSupervisor.add_or_return_limiter(anon_bucket_name(name), get_scale(:anon, limits))
+
+    {:ok, _pid} =
+      LimiterSupervisor.add_or_return_limiter(user_bucket_name(name), get_scale(:user, limits))
+
+    :ok
  end

  defp attach_identity(base, %{mode: :user, conn_info: conn_info}),
@ -245,6 +268,6 @@ defmodule Pleroma.Plugs.RateLimiter do
  defp attach_identity(base, %{mode: :anon, conn_info: conn_info}),
    do: "ip:#{base}:#{conn_info}"

-  defp user_bucket_name(name_root), do: "user:#{name_root}" |> String.to_atom()
-  defp anon_bucket_name(name_root), do: "anon:#{name_root}" |> String.to_atom()
+  defp user_bucket_name(bucket_name_root), do: "user:#{bucket_name_root}" |> String.to_atom()
+  defp anon_bucket_name(bucket_name_root), do: "anon:#{bucket_name_root}" |> String.to_atom()
 end
--- a/lib/pleroma/plugs/remote_ip.ex
+++ b/lib/pleroma/plugs/remote_ip.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Plugs.RemoteIp do
--- a/lib/pleroma/plugs/user_enabled_plug.ex
+++ b/lib/pleroma/plugs/user_enabled_plug.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Plugs.UserEnabledPlug do
--- a/lib/pleroma/plugs/user_is_admin_plug.ex
+++ b/lib/pleroma/plugs/user_is_admin_plug.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Plugs.UserIsAdminPlug do
--- a/lib/pleroma/repo.ex
+++ b/lib/pleroma/repo.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Repo do
--- a/lib/pleroma/scheduled_activity.ex
+++ b/lib/pleroma/scheduled_activity.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.ScheduledActivity do
--- a/lib/pleroma/stats.ex
+++ b/lib/pleroma/stats.ex
@ -1,9 +1,10 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Stats do
  import Ecto.Query
+  alias Pleroma.CounterCache
  alias Pleroma.Repo
  alias Pleroma.User

@ -96,4 +97,21 @@ defmodule Pleroma.Stats do
      }
    }
  end
+
+  def get_status_visibility_count do
+    counter_cache =
+      CounterCache.get_as_map([
+        "status_visibility_public",
+        "status_visibility_private",
+        "status_visibility_unlisted",
+        "status_visibility_direct"
+      ])
+
+    %{
+      public: counter_cache["status_visibility_public"] || 0,
+      unlisted: counter_cache["status_visibility_unlisted"] || 0,
+      private: counter_cache["status_visibility_private"] || 0,
+      direct: counter_cache["status_visibility_direct"] || 0
+    }
+  end
 end
--- a/lib/pleroma/upload.ex
+++ b/lib/pleroma/upload.ex
@ -37,6 +37,7 @@ defmodule Pleroma.Upload do
          Plug.Upload.t()
          | (data_uri_string :: String.t())
          | {:from_local, name :: String.t(), id :: String.t(), path :: String.t()}
+          | map()

  @type option ::
          {:type, :avatar | :banner | :background}
--- a/lib/pleroma/uploaders/local.ex
+++ b/lib/pleroma/uploaders/local.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Uploaders.Local do
--- a/lib/pleroma/uploaders/s3.ex
+++ b/lib/pleroma/uploaders/s3.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Uploaders.S3 do
--- a/lib/pleroma/uploaders/uploader.ex
+++ b/lib/pleroma/uploaders/uploader.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Uploaders.Uploader do
--- a/lib/pleroma/user.ex
+++ b/lib/pleroma/user.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.User do
@ -749,9 +749,18 @@ defmodule Pleroma.User do
    Cachex.del(:user_cache, "nickname:#{user.nickname}")
  end

+  @spec get_cached_by_ap_id(String.t()) :: User.t() | nil
  def get_cached_by_ap_id(ap_id) do
    key = "ap_id:#{ap_id}"
-    Cachex.fetch!(:user_cache, key, fn _ -> get_by_ap_id(ap_id) end)
+
+    with {:ok, nil} <- Cachex.get(:user_cache, key),
+         user when not is_nil(user) <- get_by_ap_id(ap_id),
+         {:ok, true} <- Cachex.put(:user_cache, key, user) do
+      user
+    else
+      {:ok, user} -> user
+      nil -> nil
+    end
  end

  def get_cached_by_id(id) do
@ -853,14 +862,14 @@ defmodule Pleroma.User do
  @spec get_followers_query(User.t()) :: Ecto.Query.t()
  def get_followers_query(user), do: get_followers_query(user, nil)

-  @spec get_followers(User.t(), pos_integer()) :: {:ok, list(User.t())}
+  @spec get_followers(User.t(), pos_integer() | nil) :: {:ok, list(User.t())}
  def get_followers(user, page \\ nil) do
    user
    |> get_followers_query(page)
    |> Repo.all()
  end

-  @spec get_external_followers(User.t(), pos_integer()) :: {:ok, list(User.t())}
+  @spec get_external_followers(User.t(), pos_integer() | nil) :: {:ok, list(User.t())}
  def get_external_followers(user, page \\ nil) do
    user
    |> get_followers_query(page)
@ -1304,7 +1313,6 @@ defmodule Pleroma.User do
    Repo.delete(user)
  end

-  @spec perform(atom(), User.t()) :: {:ok, User.t()}
  def perform(:fetch_initial_posts, %User{} = user) do
    pages = Pleroma.Config.get!([:fetch_initial_posts, :pages])

@ -1336,7 +1344,6 @@ defmodule Pleroma.User do
    )
  end

-  @spec perform(atom(), User.t(), list()) :: list() | {:error, any()}
  def perform(:follow_import, %User{} = follower, followed_identifiers)
      when is_list(followed_identifiers) do
    Enum.map(
--- a/lib/pleroma/user/query.ex
+++ b/lib/pleroma/user/query.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.User.Query do
@ -48,7 +48,7 @@ defmodule Pleroma.User.Query do
            followers: User.t(),
            friends: User.t(),
            recipients_from_activity: [String.t()],
-            nickname: [String.t()],
+            nickname: [String.t()] | String.t(),
            ap_id: [String.t()],
            order_by: term(),
            select: term(),
--- a/lib/pleroma/user/search.ex
+++ b/lib/pleroma/user/search.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.User.Search do
@ -33,9 +33,15 @@ defmodule Pleroma.User.Search do
    # Strip the beginning @ off if there is a query
    query_string = String.trim_leading(query_string, "@")

-    with [name, domain] <- String.split(query_string, "@"),
-         formatted_domain <- String.replace(domain, ~r/[!-\-|@|[-`|{-~|\/|:|\s]+/, "") do
-      name <> "@" <> to_string(:idna.encode(formatted_domain))
+    with [name, domain] <- String.split(query_string, "@") do
+      encoded_domain =
+        domain
+        |> String.replace(~r/[!-\-|@|[-`|{-~|\/|:|\s]+/, "")
+        |> String.to_charlist()
+        |> :idna.encode()
+        |> to_string()
+
+      name <> "@" <> encoded_domain
    else
      _ -> query_string
    end
--- a/lib/pleroma/user_relationship.ex
+++ b/lib/pleroma/user_relationship.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.UserRelationship do
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@ -1,11 +1,12 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.ActivityPub.ActivityPub do
  alias Pleroma.Activity
  alias Pleroma.Activity.Ir.Topics
  alias Pleroma.Config
+  alias Pleroma.Constants
  alias Pleroma.Conversation
  alias Pleroma.Conversation.Participation
  alias Pleroma.Notification
@ -124,6 +125,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do

  def increase_poll_votes_if_vote(_create_data), do: :noop

+  @spec insert(map(), boolean(), boolean(), boolean()) :: {:ok, Activity.t()} | {:error, any()}
  def insert(map, local \\ true, fake \\ false, bypass_actor_check \\ false) when is_map(map) do
    with nil <- Activity.normalize(map),
         map <- lazy_put_activity_defaults(map, fake),
@ -231,12 +233,19 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
    :noop
  end

-  def create(%{to: to, actor: actor, context: context, object: object} = params, fake \\ false) do
+  @spec create(map(), boolean()) :: {:ok, Activity.t()} | {:error, any()}
+  def create(params, fake \\ false) do
+    with {:ok, result} <- Repo.transaction(fn -> do_create(params, fake) end) do
+      result
+    end
+  end
+
+  defp do_create(%{to: to, actor: actor, context: context, object: object} = params, fake) do
    additional = params[:additional] || %{}
    # only accept false as false value
    local = !(params[:local] == false)
    published = params[:published]
-    quick_insert? = Pleroma.Config.get([:env]) == :benchmark
+    quick_insert? = Config.get([:env]) == :benchmark

    with create_data <-
           make_create_data(
@ -259,10 +268,11 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
        {:ok, activity}

      {:error, message} ->
-        {:error, message}
+        Repo.rollback(message)
    end
  end

+  @spec listen(map()) :: {:ok, Activity.t()} | {:error, any()}
  def listen(%{to: to, actor: actor, context: context, object: object} = params) do
    additional = params[:additional] || %{}
    # only accept false as false value
@ -277,20 +287,20 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
         {:ok, activity} <- insert(listen_data, local),
         :ok <- maybe_federate(activity) do
      {:ok, activity}
-    else
-      {:error, message} ->
-        {:error, message}
    end
  end

+  @spec accept(map()) :: {:ok, Activity.t()} | {:error, any()}
  def accept(params) do
    accept_or_reject("Accept", params)
  end

+  @spec reject(map()) :: {:ok, Activity.t()} | {:error, any()}
  def reject(params) do
    accept_or_reject("Reject", params)
  end

+  @spec accept_or_reject(String.t(), map()) :: {:ok, Activity.t()} | {:error, any()}
  def accept_or_reject(type, %{to: to, actor: actor, object: object} = params) do
    local = Map.get(params, :local, true)
    activity_id = Map.get(params, :activity_id, nil)
@ -304,6 +314,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
    end
  end

+  @spec update(map()) :: {:ok, Activity.t()} | {:error, any()}
  def update(%{to: to, cc: cc, actor: actor, object: object} = params) do
    local = !(params[:local] == false)
    activity_id = params[:activity_id]
@ -322,7 +333,16 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
    end
  end

+  @spec react_with_emoji(User.t(), Object.t(), String.t(), keyword()) ::
+          {:ok, Activity.t(), Object.t()} | {:error, any()}
  def react_with_emoji(user, object, emoji, options \\ []) do
+    with {:ok, result} <-
+           Repo.transaction(fn -> do_react_with_emoji(user, object, emoji, options) end) do
+      result
+    end
+  end
+
+  defp do_react_with_emoji(user, object, emoji, options) do
    with local <- Keyword.get(options, :local, true),
         activity_id <- Keyword.get(options, :activity_id, nil),
         true <- Pleroma.Emoji.is_unicode_emoji?(emoji),
@ -332,11 +352,21 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
         :ok <- maybe_federate(activity) do
      {:ok, activity, object}
    else
-      e -> {:error, e}
+      false -> {:error, false}
+      {:error, error} -> Repo.rollback(error)
    end
  end

+  @spec unreact_with_emoji(User.t(), String.t(), keyword()) ::
+          {:ok, Activity.t(), Object.t()} | {:error, any()}
  def unreact_with_emoji(user, reaction_id, options \\ []) do
+    with {:ok, result} <-
+           Repo.transaction(fn -> do_unreact_with_emoji(user, reaction_id, options) end) do
+      result
+    end
+  end
+
+  defp do_unreact_with_emoji(user, reaction_id, options) do
    with local <- Keyword.get(options, :local, true),
         activity_id <- Keyword.get(options, :activity_id, nil),
         user_ap_id <- user.ap_id,
@ -348,17 +378,25 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
         :ok <- maybe_federate(activity) do
      {:ok, activity, object}
    else
-      e -> {:error, e}
+      {:error, error} -> Repo.rollback(error)
    end
  end

  # TODO: This is weird, maybe we shouldn't check here if we can make the activity.
-  def like(
-        %User{ap_id: ap_id} = user,
-        %Object{data: %{"id" => _}} = object,
-        activity_id \\ nil,
-        local \\ true
-      ) do
+  @spec like(User.t(), Object.t(), String.t() | nil, boolean()) ::
+          {:ok, Activity.t(), Object.t()} | {:error, any()}
+  def like(user, object, activity_id \\ nil, local \\ true) do
+    with {:ok, result} <- Repo.transaction(fn -> do_like(user, object, activity_id, local) end) do
+      result
+    end
+  end
+
+  defp do_like(
+         %User{ap_id: ap_id} = user,
+         %Object{data: %{"id" => _}} = object,
+         activity_id,
+         local
+       ) do
    with nil <- get_existing_like(ap_id, object),
         like_data <- make_like_data(user, object, activity_id),
         {:ok, activity} <- insert(like_data, local),
@ -366,12 +404,24 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
         :ok <- maybe_federate(activity) do
      {:ok, activity, object}
    else
-      %Activity{} = activity -> {:ok, activity, object}
-      error -> {:error, error}
+      %Activity{} = activity ->
+        {:ok, activity, object}
+
+      {:error, error} ->
+        Repo.rollback(error)
    end
  end

+  @spec unlike(User.t(), Object.t(), String.t() | nil, boolean()) ::
+          {:ok, Activity.t(), Activity.t(), Object.t()} | {:ok, Object.t()} | {:error, any()}
  def unlike(%User{} = actor, %Object{} = object, activity_id \\ nil, local \\ true) do
+    with {:ok, result} <-
+           Repo.transaction(fn -> do_unlike(actor, object, activity_id, local) end) do
+      result
+    end
+  end
+
+  defp do_unlike(actor, object, activity_id, local) do
    with %Activity{} = like_activity <- get_existing_like(actor.ap_id, object),
         unlike_data <- make_unlike_data(actor, like_activity, activity_id),
         {:ok, unlike_activity} <- insert(unlike_data, local),
@ -380,10 +430,13 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
         :ok <- maybe_federate(unlike_activity) do
      {:ok, unlike_activity, like_activity, object}
    else
-      _e -> {:ok, object}
+      nil -> {:ok, object}
+      {:error, error} -> Repo.rollback(error)
    end
  end

+  @spec announce(User.t(), Object.t(), String.t() | nil, boolean(), boolean()) ::
+          {:ok, Activity.t(), Object.t()} | {:error, any()}
  def announce(
        %User{ap_id: _} = user,
        %Object{data: %{"id" => _}} = object,
@ -391,6 +444,13 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
        local \\ true,
        public \\ true
      ) do
+    with {:ok, result} <-
+           Repo.transaction(fn -> do_announce(user, object, activity_id, local, public) end) do
+      result
+    end
+  end
+
+  defp do_announce(user, object, activity_id, local, public) do
    with true <- is_announceable?(object, user, public),
         announce_data <- make_announce_data(user, object, activity_id, public),
         {:ok, activity} <- insert(announce_data, local),
@ -398,16 +458,26 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
         :ok <- maybe_federate(activity) do
      {:ok, activity, object}
    else
-      error -> {:error, error}
+      false -> {:error, false}
+      {:error, error} -> Repo.rollback(error)
    end
  end

+  @spec unannounce(User.t(), Object.t(), String.t() | nil, boolean()) ::
+          {:ok, Activity.t(), Object.t()} | {:ok, Object.t()} | {:error, any()}
  def unannounce(
        %User{} = actor,
        %Object{} = object,
        activity_id \\ nil,
        local \\ true
      ) do
+    with {:ok, result} <-
+           Repo.transaction(fn -> do_unannounce(actor, object, activity_id, local) end) do
+      result
+    end
+  end
+
+  defp do_unannounce(actor, object, activity_id, local) do
    with %Activity{} = announce_activity <- get_existing_announce(actor.ap_id, object),
         unannounce_data <- make_unannounce_data(actor, announce_activity, activity_id),
         {:ok, unannounce_activity} <- insert(unannounce_data, local),
@ -416,30 +486,61 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
         {:ok, object} <- remove_announce_from_object(announce_activity, object) do
      {:ok, unannounce_activity, object}
    else
-      _e -> {:ok, object}
+      nil -> {:ok, object}
+      {:error, error} -> Repo.rollback(error)
    end
  end

+  @spec follow(User.t(), User.t(), String.t() | nil, boolean()) ::
+          {:ok, Activity.t()} | {:error, any()}
  def follow(follower, followed, activity_id \\ nil, local \\ true) do
+    with {:ok, result} <-
+           Repo.transaction(fn -> do_follow(follower, followed, activity_id, local) end) do
+      result
+    end
+  end
+
+  defp do_follow(follower, followed, activity_id, local) do
    with data <- make_follow_data(follower, followed, activity_id),
         {:ok, activity} <- insert(data, local),
         :ok <- maybe_federate(activity),
         _ <- User.set_follow_state_cache(follower.ap_id, followed.ap_id, activity.data["state"]) do
      {:ok, activity}
+    else
+      {:error, error} -> Repo.rollback(error)
    end
  end

+  @spec unfollow(User.t(), User.t(), String.t() | nil, boolean()) ::
+          {:ok, Activity.t()} | nil | {:error, any()}
  def unfollow(follower, followed, activity_id \\ nil, local \\ true) do
+    with {:ok, result} <-
+           Repo.transaction(fn -> do_unfollow(follower, followed, activity_id, local) end) do
+      result
+    end
+  end
+
+  defp do_unfollow(follower, followed, activity_id, local) do
    with %Activity{} = follow_activity <- fetch_latest_follow(follower, followed),
         {:ok, follow_activity} <- update_follow_state(follow_activity, "cancelled"),
         unfollow_data <- make_unfollow_data(follower, followed, follow_activity, activity_id),
         {:ok, activity} <- insert(unfollow_data, local),
         :ok <- maybe_federate(activity) do
      {:ok, activity}
+    else
+      nil -> nil
+      {:error, error} -> Repo.rollback(error)
    end
  end

-  def delete(%User{ap_id: ap_id, follower_address: follower_address} = user) do
+  @spec delete(User.t() | Object.t(), keyword()) :: {:ok, User.t() | Object.t()} | {:error, any()}
+  def delete(entity, options \\ []) do
+    with {:ok, result} <- Repo.transaction(fn -> do_delete(entity, options) end) do
+      result
+    end
+  end
+
+  defp do_delete(%User{ap_id: ap_id, follower_address: follower_address} = user, _) do
    with data <- %{
           "to" => [follower_address],
           "type" => "Delete",
@ -452,7 +553,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
    end
  end

-  def delete(%Object{data: %{"id" => id, "actor" => actor}} = object, options \\ []) do
+  defp do_delete(%Object{data: %{"id" => id, "actor" => actor}} = object, options) do
    local = Keyword.get(options, :local, true)
    activity_id = Keyword.get(options, :activity_id, nil)
    actor = Keyword.get(options, :actor, actor)
@ -477,11 +578,22 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
         {:ok, _actor} <- decrease_note_count_if_public(user, object),
         :ok <- maybe_federate(activity) do
      {:ok, activity}
+    else
+      {:error, error} ->
+        Repo.rollback(error)
    end
  end

-  @spec block(User.t(), User.t(), String.t() | nil, boolean) :: {:ok, Activity.t() | nil}
+  @spec block(User.t(), User.t(), String.t() | nil, boolean()) ::
+          {:ok, Activity.t()} | {:error, any()}
  def block(blocker, blocked, activity_id \\ nil, local \\ true) do
+    with {:ok, result} <-
+           Repo.transaction(fn -> do_block(blocker, blocked, activity_id, local) end) do
+      result
+    end
+  end
+
+  defp do_block(blocker, blocked, activity_id, local) do
    outgoing_blocks = Config.get([:activitypub, :outgoing_blocks])
    unfollow_blocked = Config.get([:activitypub, :unfollow_blocked])

@ -496,20 +608,32 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
         :ok <- maybe_federate(activity) do
      {:ok, activity}
    else
-      _e -> {:ok, nil}
+      {:error, error} -> Repo.rollback(error)
    end
  end

+  @spec unblock(User.t(), User.t(), String.t() | nil, boolean()) ::
+          {:ok, Activity.t()} | {:error, any()} | nil
  def unblock(blocker, blocked, activity_id \\ nil, local \\ true) do
+    with {:ok, result} <-
+           Repo.transaction(fn -> do_unblock(blocker, blocked, activity_id, local) end) do
+      result
+    end
+  end
+
+  defp do_unblock(blocker, blocked, activity_id, local) do
    with %Activity{} = block_activity <- fetch_latest_block(blocker, blocked),
         unblock_data <- make_unblock_data(blocker, blocked, block_activity, activity_id),
         {:ok, activity} <- insert(unblock_data, local),
         :ok <- maybe_federate(activity) do
      {:ok, activity}
+    else
+      nil -> nil
+      {:error, error} -> Repo.rollback(error)
    end
  end

-  @spec flag(map()) :: {:ok, Activity.t()} | any
+  @spec flag(map()) :: {:ok, Activity.t()} | {:error, any()}
  def flag(
        %{
          actor: actor,
@ -546,6 +670,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
    end
  end

+  @spec move(User.t(), User.t(), boolean()) :: {:ok, Activity.t()} | {:error, any()}
  def move(%User{} = origin, %User{} = target, local \\ true) do
    params = %{
      "type" => "Move",
@ -571,7 +696,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
  end

  defp fetch_activities_for_context_query(context, opts) do
-    public = [Pleroma.Constants.as_public()]
+    public = [Constants.as_public()]

    recipients =
      if opts["user"],
@ -616,10 +741,11 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
    |> Repo.one()
  end

+  @spec fetch_public_activities(map(), Pagination.type()) :: [Activity.t()]
  def fetch_public_activities(opts \\ %{}, pagination \\ :keyset) do
    opts = Map.drop(opts, ["user"])

-    [Pleroma.Constants.as_public()]
+    [Constants.as_public()]
    |> fetch_activities_query(opts)
    |> restrict_unlisted()
    |> Pagination.fetch_paginated(opts, pagination)
@ -770,13 +896,18 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
    |> Enum.reverse()
  end

-  def fetch_instance_activities(params) do
+  def fetch_statuses(reading_user, params) do
    params =
      params
      |> Map.put("type", ["Create", "Announce"])
-      |> Map.put("instance", params["instance"])

-    fetch_activities([Pleroma.Constants.as_public()], params, :offset)
+    recipients =
+      user_activities_recipients(%{
+        "godmode" => params["godmode"],
+        "reading_user" => reading_user
+      })
+
+    fetch_activities(recipients, params, :offset)
    |> Enum.reverse()
  end

@ -786,9 +917,9 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do

  defp user_activities_recipients(%{"reading_user" => reading_user}) do
    if reading_user do
-      [Pleroma.Constants.as_public()] ++ [reading_user.ap_id | User.following(reading_user)]
+      [Constants.as_public()] ++ [reading_user.ap_id | User.following(reading_user)]
    else
-      [Pleroma.Constants.as_public()]
+      [Constants.as_public()]
    end
  end

@ -995,7 +1126,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
        fragment(
          "not (coalesce(?->'cc', '{}'::jsonb) \\?| ?)",
          activity.data,
-          ^[Pleroma.Constants.as_public()]
+          ^[Constants.as_public()]
        )
    )
  end
@ -1169,7 +1300,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
  @doc """
  Fetch favorites activities of user with order by sort adds to favorites
  """
-  @spec fetch_favourites(User.t(), map(), atom()) :: list(Activity.t())
+  @spec fetch_favourites(User.t(), map(), Pagination.type()) :: list(Activity.t())
  def fetch_favourites(user, params \\ %{}, pagination \\ :keyset) do
    user.ap_id
    |> Activity.Queries.by_actor()
@ -1207,7 +1338,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
      where:
        fragment("? && ?", activity.recipients, ^recipients) or
          (fragment("? && ?", activity.recipients, ^recipients_with_public) and
-             ^Pleroma.Constants.as_public() in activity.recipients)
+             ^Constants.as_public() in activity.recipients)
    )
  end

@ -1223,6 +1354,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
    |> Enum.reverse()
  end

+  @spec upload(Upload.source(), keyword()) :: {:ok, Object.t()} | {:error, any()}
  def upload(file, opts \\ []) do
    with {:ok, data} <- Upload.store(file, opts) do
      obj_data =
@ -1320,8 +1452,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
  defp normalize_counter(_), do: 0

  defp maybe_update_follow_information(data) do
-    with {:enabled, true} <-
-           {:enabled, Pleroma.Config.get([:instance, :external_user_synchronization])},
+    with {:enabled, true} <- {:enabled, Config.get([:instance, :external_user_synchronization])},
         {:ok, info} <- fetch_follow_information_for_user(data) do
      info = Map.merge(data[:info] || %{}, info)
      Map.put(data, :info, info)
--- a/lib/pleroma/web/activity_pub/mrf/anti_link_spam_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/anti_link_spam_policy.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.ActivityPub.MRF.AntiLinkSpamPolicy do
--- a/lib/pleroma/web/activity_pub/mrf/media_proxy_warming_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/media_proxy_warming_policy.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy do
--- a/lib/pleroma/web/activity_pub/mrf/no_op_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/no_op_policy.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.ActivityPub.MRF.NoOpPolicy do
--- a/lib/pleroma/web/activity_pub/mrf/object_age_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/object_age_policy.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.ActivityPub.MRF.ObjectAgePolicy do
--- a/lib/pleroma/web/activity_pub/mrf/simple_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/simple_policy.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
--- a/lib/pleroma/web/activity_pub/mrf/subchain_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/subchain_policy.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.ActivityPub.MRF.SubchainPolicy do
--- a/lib/pleroma/web/activity_pub/mrf/user_allow_list_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/user_allow_list_policy.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.ActivityPub.MRF.UserAllowListPolicy do
--- a/lib/pleroma/web/activity_pub/mrf/vocabulary_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/vocabulary_policy.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.ActivityPub.MRF.VocabularyPolicy do
--- a/lib/pleroma/web/activity_pub/publisher.ex
+++ b/lib/pleroma/web/activity_pub/publisher.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.ActivityPub.Publisher do
--- a/lib/pleroma/web/activity_pub/relay.ex
+++ b/lib/pleroma/web/activity_pub/relay.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.ActivityPub.Relay do
--- a/lib/pleroma/web/activity_pub/transmogrifier.ex
+++ b/lib/pleroma/web/activity_pub/transmogrifier.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.ActivityPub.Transmogrifier do
@ -156,10 +156,11 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
      when not is_nil(in_reply_to) do
    in_reply_to_id = prepare_in_reply_to(in_reply_to)
    object = Map.put(object, "inReplyToAtomUri", in_reply_to_id)
+    depth = (options[:depth] || 0) + 1

-    if Federator.allowed_incoming_reply_depth?(options[:depth]) do
+    if Federator.allowed_thread_distance?(depth) do
      with {:ok, replied_object} <- get_obj_helper(in_reply_to_id, options),
-           %Activity{} = _ <- Activity.get_create_by_object_ap_id(replied_object.data["id"]) do
+           %Activity{} <- Activity.get_create_by_object_ap_id(replied_object.data["id"]) do
        object
        |> Map.put("inReplyTo", replied_object.data["id"])
        |> Map.put("inReplyToAtomUri", object["inReplyToAtomUri"] || in_reply_to_id)
@ -312,7 +313,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do

  def fix_type(%{"inReplyTo" => reply_id, "name" => _} = object, options)
      when is_binary(reply_id) do
-    with true <- Federator.allowed_incoming_reply_depth?(options[:depth]),
+    with true <- Federator.allowed_thread_distance?(options[:depth]),
         {:ok, %{data: %{"type" => "Question"} = _} = _} <- get_obj_helper(reply_id, options) do
      Map.put(object, "type", "Answer")
    else
@ -406,8 +407,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do

    with nil <- Activity.get_create_by_object_ap_id(object["id"]),
         {:ok, %User{} = user} <- User.get_or_fetch_by_ap_id(data["actor"]) do
-      options = Keyword.put(options, :depth, (options[:depth] || 0) + 1)
-      object = fix_object(data["object"], options)
+      object = fix_object(object, options)

      params = %{
        to: data["to"],
@ -424,7 +424,20 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
          ])
      }

-      ActivityPub.create(params)
+      with {:ok, created_activity} <- ActivityPub.create(params) do
+        reply_depth = (options[:depth] || 0) + 1
+
+        if Federator.allowed_thread_distance?(reply_depth) do
+          for reply_id <- replies(object) do
+            Pleroma.Workers.RemoteFetcherWorker.enqueue("fetch_remote", %{
+              "id" => reply_id,
+              "depth" => reply_depth
+            })
+          end
+        end
+
+        {:ok, created_activity}
+      end
    else
      %Activity{} = activity -> {:ok, activity}
      _e -> :error
@ -442,7 +455,8 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
      |> fix_addressing

    with {:ok, %User{} = user} <- User.get_or_fetch_by_ap_id(data["actor"]) do
-      options = Keyword.put(options, :depth, (options[:depth] || 0) + 1)
+      reply_depth = (options[:depth] || 0) + 1
+      options = Keyword.put(options, :depth, reply_depth)
      object = fix_object(object, options)

      params = %{
@ -903,6 +917,50 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do

  def set_reply_to_uri(obj), do: obj

+  @doc """
+  Serialized Mastodon-compatible `replies` collection containing _self-replies_.
+  Based on Mastodon's ActivityPub::NoteSerializer#replies.
+  """
+  def set_replies(obj_data) do
+    replies_uris =
+      with limit when limit > 0 <-
+             Pleroma.Config.get([:activitypub, :note_replies_output_limit], 0),
+           %Object{} = object <- Object.get_cached_by_ap_id(obj_data["id"]) do
+        object
+        |> Object.self_replies()
+        |> select([o], fragment("?->>'id'", o.data))
+        |> limit(^limit)
+        |> Repo.all()
+      else
+        _ -> []
+      end
+
+    set_replies(obj_data, replies_uris)
+  end
+
+  defp set_replies(obj, []) do
+    obj
+  end
+
+  defp set_replies(obj, replies_uris) do
+    replies_collection = %{
+      "type" => "Collection",
+      "items" => replies_uris
+    }
+
+    Map.merge(obj, %{"replies" => replies_collection})
+  end
+
+  def replies(%{"replies" => %{"first" => %{"items" => items}}}) when not is_nil(items) do
+    items
+  end
+
+  def replies(%{"replies" => %{"items" => items}}) when not is_nil(items) do
+    items
+  end
+
+  def replies(_), do: []
+
  # Prepares the object of an outgoing create activity.
  def prepare_object(object) do
    object
@ -914,6 +972,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
    |> prepare_attachments
    |> set_conversation
    |> set_reply_to_uri
+    |> set_replies
    |> strip_internal_fields
    |> strip_internal_tags
    |> set_type
--- a/lib/pleroma/web/activity_pub/utils.ex
+++ b/lib/pleroma/web/activity_pub/utils.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.ActivityPub.Utils do
@ -45,8 +45,8 @@ defmodule Pleroma.Web.ActivityPub.Utils do
    Map.put(params, "actor", get_ap_id(params["actor"]))
  end

-  @spec determine_explicit_mentions(map()) :: map()
-  def determine_explicit_mentions(%{"tag" => tag} = _) when is_list(tag) do
+  @spec determine_explicit_mentions(map()) :: [any]
+  def determine_explicit_mentions(%{"tag" => tag}) when is_list(tag) do
    Enum.flat_map(tag, fn
      %{"type" => "Mention", "href" => href} -> [href]
      _ -> []
@ -427,7 +427,7 @@ defmodule Pleroma.Web.ActivityPub.Utils do
  @doc """
  Updates a follow activity's state (for locked accounts).
  """
-  @spec update_follow_state_for_all(Activity.t(), String.t()) :: {:ok, Activity} | {:error, any()}
+  @spec update_follow_state_for_all(Activity.t(), String.t()) :: {:ok, Activity | nil}
  def update_follow_state_for_all(
        %Activity{data: %{"actor" => actor, "object" => object}} = activity,
        state
--- a/lib/pleroma/web/admin_api/admin_api_controller.ex
+++ b/lib/pleroma/web/admin_api/admin_api_controller.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.AdminAPI.AdminAPIController do
@ -13,6 +13,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
  alias Pleroma.ModerationLog
  alias Pleroma.Plugs.OAuthScopesPlug
  alias Pleroma.ReportNote
+  alias Pleroma.Stats
  alias Pleroma.User
  alias Pleroma.UserInviteToken
  alias Pleroma.Web.ActivityPub.ActivityPub
@ -98,7 +99,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
  plug(
    OAuthScopesPlug,
    %{scopes: ["read"], admin: true}
-    when action in [:config_show, :list_log]
+    when action in [:config_show, :list_log, :stats]
  )

  plug(
@ -243,13 +244,15 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
  end

  def list_instance_statuses(conn, %{"instance" => instance} = params) do
+    with_reblogs = params["with_reblogs"] == "true" || params["with_reblogs"] == true
    {page, page_size} = page_params(params)

    activities =
-      ActivityPub.fetch_instance_activities(%{
+      ActivityPub.fetch_statuses(nil, %{
        "instance" => instance,
        "limit" => page_size,
-        "offset" => (page - 1) * page_size
+        "offset" => (page - 1) * page_size,
+        "exclude_reblogs" => !with_reblogs && "true"
      })

    conn
@ -258,6 +261,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
  end

  def list_user_statuses(conn, %{"nickname" => nickname} = params) do
+    with_reblogs = params["with_reblogs"] == "true" || params["with_reblogs"] == true
    godmode = params["godmode"] == "true" || params["godmode"] == true

    with %User{} = user <- User.get_cached_by_nickname_or_id(nickname) do
@ -266,7 +270,8 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
      activities =
        ActivityPub.fetch_user_activities(user, nil, %{
          "limit" => page_size,
-          "godmode" => godmode
+          "godmode" => godmode,
+          "exclude_reblogs" => !with_reblogs && "true"
        })

      conn
@ -740,6 +745,24 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
    end
  end

+  def list_statuses(%{assigns: %{user: admin}} = conn, params) do
+    godmode = params["godmode"] == "true" || params["godmode"] == true
+    local_only = params["local_only"] == "true" || params["local_only"] == true
+    {page, page_size} = page_params(params)
+
+    activities =
+      ActivityPub.fetch_statuses(admin, %{
+        "godmode" => godmode,
+        "local_only" => local_only,
+        "limit" => page_size,
+        "offset" => (page - 1) * page_size
+      })
+
+    conn
+    |> put_view(Pleroma.Web.AdminAPI.StatusView)
+    |> render("index.json", %{activities: activities, as: :activity})
+  end
+
  def status_update(%{assigns: %{user: admin}} = conn, %{"id" => id} = params) do
    with {:ok, activity} <- CommonAPI.update_activity_scope(id, params) do
      {:ok, sensitive} = Ecto.Type.cast(:boolean, params["sensitive"])
@ -953,6 +976,13 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
    conn |> json("")
  end

+  def stats(conn, _) do
+    count = Stats.get_status_visibility_count()
+
+    conn
+    |> json(%{"status_visibility" => count})
+  end
+
  def errors(conn, {:error, :not_found}) do
    conn
    |> put_status(:not_found)
--- a/lib/pleroma/web/admin_api/search.ex
+++ b/lib/pleroma/web/admin_api/search.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.AdminAPI.Search do
@ -18,7 +18,11 @@ defmodule Pleroma.Web.AdminAPI.Search do

  @spec user(map()) :: {:ok, [User.t()], pos_integer()}
  def user(params \\ %{}) do
-    query = User.Query.build(params) |> order_by([u], u.nickname)
+    query =
+      params
+      |> Map.drop([:page, :page_size])
+      |> User.Query.build()
+      |> order_by([u], u.nickname)

    paginated_query =
      User.Query.paginate(query, params[:page] || 1, params[:page_size] || @page_size)
--- a/lib/pleroma/web/admin_api/views/config_view.ex
+++ b/lib/pleroma/web/admin_api/views/config_view.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.AdminAPI.ConfigView do
--- a/lib/pleroma/web/admin_api/views/status_view.ex
+++ b/lib/pleroma/web/admin_api/views/status_view.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.AdminAPI.StatusView do
@ -10,7 +10,7 @@ defmodule Pleroma.Web.AdminAPI.StatusView do
  alias Pleroma.User

  def render("index.json", opts) do
-    render_many(opts.activities, __MODULE__, "show.json", opts)
+    safe_render_many(opts.activities, __MODULE__, "show.json", opts)
  end

  def render("show.json", %{activity: %{data: %{"object" => _object}} = activity} = opts) do
--- a/lib/pleroma/web/common_api/common_api.ex
+++ b/lib/pleroma/web/common_api/common_api.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.CommonAPI do
--- a/lib/pleroma/web/common_api/utils.ex
+++ b/lib/pleroma/web/common_api/utils.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.CommonAPI.Utils do
--- a/lib/pleroma/web/controller_helper.ex
+++ b/lib/pleroma/web/controller_helper.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.ControllerHelper do
--- a/lib/pleroma/web/endpoint.ex
+++ b/lib/pleroma/web/endpoint.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.Endpoint do
--- a/lib/pleroma/web/federator/federator.ex
+++ b/lib/pleroma/web/federator/federator.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.Federator do
@ -15,13 +15,19 @@ defmodule Pleroma.Web.Federator do

  require Logger

-  @doc "Addresses [memory leaks on recursive replies fetching](https://git.pleroma.social/pleroma/pleroma/issues/161)"
+  @doc """
+  Returns `true` if the distance to target object does not exceed max configured value.
+  Serves to prevent fetching of very long threads, especially useful on smaller instances.
+  Addresses [memory leaks on recursive replies fetching](https://git.pleroma.social/pleroma/pleroma/issues/161).
+  Applies to fetching of both ancestor (reply-to) and child (reply) objects.
+  """
  # credo:disable-for-previous-line Credo.Check.Readability.MaxLineLength
-  def allowed_incoming_reply_depth?(depth) do
-    max_replies_depth = Pleroma.Config.get([:instance, :federation_incoming_replies_max_depth])
+  def allowed_thread_distance?(distance) do
+    max_distance = Pleroma.Config.get([:instance, :federation_incoming_replies_max_depth])

-    if max_replies_depth do
-      (depth || 1) <= max_replies_depth
+    if max_distance && max_distance >= 0 do
+      # Default depth is 0 (an object has zero distance from itself in its thread)
+      (distance || 0) <= max_distance
    else
      true
    end
--- a/lib/pleroma/web/feed/feed_view.ex
+++ b/lib/pleroma/web/feed/feed_view.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.Feed.FeedView do
--- a/lib/pleroma/web/feed/tag_controller.ex
+++ b/lib/pleroma/web/feed/tag_controller.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.Feed.TagController do
--- a/lib/pleroma/web/feed/user_controller.ex
+++ b/lib/pleroma/web/feed/user_controller.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.Feed.UserController do
--- a/lib/pleroma/web/masto_fe_controller.ex
+++ b/lib/pleroma/web/masto_fe_controller.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.MastoFEController do
--- a/lib/pleroma/web/mastodon_api/controllers/notification_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/notification_controller.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.MastodonAPI.NotificationController do
--- a/lib/pleroma/web/mastodon_api/controllers/search_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/search_controller.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.MastodonAPI.SearchController do
--- a/lib/pleroma/web/mastodon_api/controllers/status_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/status_controller.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.MastodonAPI.StatusController do
--- a/lib/pleroma/web/mastodon_api/controllers/subscription_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/subscription_controller.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.MastodonAPI.SubscriptionController do
--- a/lib/pleroma/web/mastodon_api/controllers/suggestion_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/suggestion_controller.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.MastodonAPI.SuggestionController do
--- a/lib/pleroma/web/mastodon_api/controllers/timeline_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/timeline_controller.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.MastodonAPI.TimelineController do
@ -10,9 +10,20 @@ defmodule Pleroma.Web.MastodonAPI.TimelineController do

  alias Pleroma.Pagination
  alias Pleroma.Plugs.OAuthScopesPlug
+  alias Pleroma.Plugs.RateLimiter
  alias Pleroma.User
  alias Pleroma.Web.ActivityPub.ActivityPub

+  # TODO: Replace with a macro when there is a Phoenix release with
+  # https://github.com/phoenixframework/phoenix/commit/2e8c63c01fec4dde5467dbbbf9705ff9e780735e
+  # in it
+
+  plug(RateLimiter, [name: :timeline, bucket_name: :direct_timeline] when action == :direct)
+  plug(RateLimiter, [name: :timeline, bucket_name: :public_timeline] when action == :public)
+  plug(RateLimiter, [name: :timeline, bucket_name: :home_timeline] when action == :home)
+  plug(RateLimiter, [name: :timeline, bucket_name: :hashtag_timeline] when action == :hashtag)
+  plug(RateLimiter, [name: :timeline, bucket_name: :list_timeline] when action == :list)
+
  plug(OAuthScopesPlug, %{scopes: ["read:statuses"]} when action in [:home, :direct])
  plug(OAuthScopesPlug, %{scopes: ["read:lists"]} when action == :list)

--- a/lib/pleroma/web/mastodon_api/mastodon_api.ex
+++ b/lib/pleroma/web/mastodon_api/mastodon_api.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.MastodonAPI.MastodonAPI do
--- a/lib/pleroma/web/mastodon_api/views/account_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/account_view.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.MastodonAPI.AccountView do
--- a/lib/pleroma/web/mastodon_api/views/app_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/app_view.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.MastodonAPI.AppView do
--- a/lib/pleroma/web/mastodon_api/views/notification_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/notification_view.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.MastodonAPI.NotificationView do
--- a/lib/pleroma/web/mastodon_api/views/poll_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/poll_view.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.MastodonAPI.PollView do
--- a/lib/pleroma/web/mastodon_api/views/status_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/status_view.ex
@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only

 defmodule Pleroma.Web.MastodonAPI.StatusView do
--- a/Show more
+++ b/Show more