.formatter.exs

@@ -1,3 +1,14 @@
 [
-  inputs: ["mix.exs", "{config,lib,test}/**/*.{ex,exs}", "priv/repo/migrations/*.exs", "priv/repo/optional_migrations/**/*.exs", "priv/scrubbers/*.ex"]
+  import_deps: [:ecto, :ecto_sql, :phoenix],
+  subdirectories: ["priv/*/migrations"],
+  plugins: [Phoenix.LiveView.HTMLFormatter],
+  inputs: [
+    "mix.exs",
+    "*.{heex,ex,exs}",
+    "{config,lib,test}/**/*.{heex,ex,exs}",
+    "priv/*/seeds.exs",
+    "priv/repo/migrations/*.exs",
+    "priv/repo/optional_migrations/**/*.exs",
+    "priv/scrubbers/*.ex"
+  ]
 ]

.woodpecker/build-amd64.yml

@@ -37,7 +37,7 @@ variables:
 pipeline:
   # Canonical amd64
   debian-bookworm:
-    image: hexpm/elixir:1.15.4-erlang-25.3.2.5-debian-bookworm-20230612
+    image: hexpm/elixir:1.15.4-erlang-26.0.2-debian-bookworm-20230612
     <<: *on-release
     environment:
       MIX_ENV: prod
@@ -66,7 +66,7 @@ pipeline:
       - /bin/sh /entrypoint.sh
 
   debian-bullseye:
-    image: hexpm/elixir:1.15.4-erlang-25.3.2.5-debian-bullseye-20230612
+    image: hexpm/elixir:1.15.4-erlang-26.0.2-debian-bullseye-20230612
     <<: *on-release
     environment:
       MIX_ENV: prod
@@ -94,7 +94,7 @@ pipeline:
 
   # Canonical amd64-musl
   musl:
-    image: hexpm/elixir:1.14.3-erlang-25.2.2-alpine-3.18.0
+    image: hexpm/elixir:1.15.4-erlang-26.0.2-alpine-3.18.2
     <<: *on-stable
     environment:
       MIX_ENV: prod

.woodpecker/build-arm64.yml

@@ -37,7 +37,7 @@ variables:
 pipeline:
   # Canonical arm64
   debian-bookworm:
-    image: hexpm/elixir:1.15.4-erlang-25.3.2.5-debian-bookworm-20230612
+    image: hexpm/elixir:1.15.4-erlang-26.0.2-debian-bookworm-20230612
     <<: *on-release
     environment:
       MIX_ENV: prod
@@ -65,7 +65,7 @@ pipeline:
 
   # Canonical arm64-musl
   musl:
-    image: hexpm/elixir:1.15.4-erlang-25.3.2.5-alpine-3.18.2
+    image: hexpm/elixir:1.15.4-erlang-26.0.2-alpine-3.18.2
     <<: *on-stable
     environment:
       MIX_ENV: prod

.woodpecker/lint.yml

@@ -0,0 +1,55 @@
+platform: linux/amd64
+
+variables:
+  - &scw-secrets
+    - SCW_ACCESS_KEY
+    - SCW_SECRET_KEY
+    - SCW_DEFAULT_ORGANIZATION_ID
+  - &setup-hex "mix local.hex --force && mix local.rebar --force"
+  - &on-release
+    when:
+      event:
+        - push
+        - tag
+      branch:
+        - develop
+        - stable
+        - refs/tags/v*
+        - refs/tags/stable-*
+  - &on-stable
+    when:
+      event:
+        - push
+        - tag
+      branch:
+        - stable
+        - refs/tags/stable-*
+  - &on-point-release
+    when:
+      event:
+        - push
+      branch:
+        - develop
+        - stable
+  - &on-pr-open
+    when:
+      event:
+        - pull_request
+
+  - &tag-build "export BUILD_TAG=$${CI_COMMIT_TAG:-\"$CI_COMMIT_BRANCH\"} && export PLEROMA_BUILD_BRANCH=$BUILD_TAG"
+
+  - &clean "(rm -rf release || true) && (rm -rf _build || true) && (rm -rf /root/.mix)"
+  - &mix-clean "mix deps.clean --all && mix clean"
+
+pipeline:
+  lint:
+    image: akkoma/ci-base:1.15-otp26
+    <<: *on-pr-open
+    environment:
+      MIX_ENV: test
+    commands:
+      - mix local.hex --force
+      - mix local.rebar --force
+      - mix deps.get
+      - mix compile
+      - mix format --check-formatted

.woodpecker/test.yml

@@ -1,5 +1,8 @@
 platform: linux/amd64
 
+depends_on:
+  - lint
+
 matrix:
   ELIXIR_VERSION:
     - 1.14
@@ -12,9 +15,8 @@ matrix:
       OTP_VERSION: 25
     - ELIXIR_VERSION: 1.15
       OTP_VERSION: 25
-    # Soon
+    - ELIXIR_VERSION: 1.15
-    #- ELIXIR_VERSION: 1.15
+      OTP_VERSION: 26
-    #  OTP_VERSION: 26
 
 variables:
   - &scw-secrets
@@ -69,15 +71,7 @@ services:
       POSTGRES_PASSWORD: postgres
 
 pipeline:
-  lint:
+  test:
-    <<: *on-pr-open
-    image: akkoma/ci-base:1.15
-    commands:
-    - mix local.hex --force
-    - mix local.rebar --force
-    - mix format --check-formatted
-
-  build:
     image: akkoma/ci-base:${ELIXIR_VERSION}-otp${OTP_VERSION}
     <<: *on-pr-open
     environment:
@@ -91,24 +85,9 @@ pipeline:
       - mix local.rebar --force
       - mix deps.get
       - mix compile
-
+      - mix ecto.drop -f -q
-  test:
+      - mix ecto.create
-    image: akkoma/ci-base:${ELIXIR_VERSION}-otp${OTP_VERSION}
+      - mix ecto.migrate
-    <<: *on-pr-open
+      - mkdir -p test/tmp
-    environment:
+      - mix test --preload-modules --exclude erratic --exclude federated --exclude mocked
-      MIX_ENV: test
+      - mix test --preload-modules --only mocked
-      POSTGRES_DB: pleroma_test_${ELIXIR_VERSION}_${OTP_VERSION}
-      POSTGRES_USER: postgres
-      POSTGRES_PASSWORD: postgres
-      DB_HOST: postgres
-    commands:
-    - mix local.hex --force
-    - mix local.rebar --force
-    - mix deps.get
-    - mix compile
-    - mix ecto.drop -f -q
-    - mix ecto.create
-    - mix ecto.migrate
-    - mkdir -p test/tmp
-    - mix test --preload-modules --exclude erratic --exclude federated --exclude mocked
-    - mix test --preload-modules --only mocked

CHANGELOG.md

@@ -4,10 +4,61 @@ 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
+## 2024.03
+
+## Added
+- CLI tasks best-effort checking for past abuse of the recent spoofing exploit
+- new `:mrf_steal_emoji, :download_unknown_size` option; defaults to `false`
+
+## Changed
+- `Pleroma.Upload, :base_url` now MUST be configured explicitly if used;
+  use of the same domain as the instance is **strongly** discouraged
+- `:media_proxy, :base_url` now MUST be configured explicitly if used;
+  use of the same domain as the instance is **strongly** discouraged
+- StealEmoji:
+  - now uses the pack.json format;
+    existing users must migrate with an out-of-band script (check release notes)
+  - only steals shortcodes recognised as valid
+  - URLs of stolen emoji is no longer predictable
+- The `Dedupe` upload filter is now always active;
+  `AnonymizeFilenames` is again opt-in
+- received AP data is sanity checked before we attempt to parse it as a user
+- Uploads, emoji and media proxy now restrict Content-Type headers to a safe subset
+- Akkoma will no longer fetch and parse objects hosted on the same domain
 
 ## Fixed
+- Critical security issue allowing Akkoma to be used as a vector for
+  (depending on configuration) impersonation of other users or creation
+  of bogus users and posts on the upload domain
+- Critical security issue letting Akkoma fall for the above impersonation
+  payloads due to lack of strict id checking
+- Critical security issue allowing domains redirect to to pose as the initial domain
+  (e.g. with media proxy's fallback redirects)
+- refetched objects can no longer attribute themselves to third-party actors
+  (this had no externally visible effect since actor info is read from the Create activity)
+- our litepub JSON-LD schema is now served with the correct content type
+- remote APNG attachments are now recognised as images
+
+## 2024.02
+
+## Added
+- Full compatibility with Erlang OTP26
+- handling of GET /api/v1/preferences
+- Akkoma API is now documented
+- ability to auto-approve follow requests from users you are already following
+- The SimplePolicy MRF can now strip user backgrounds from selected remote hosts
+
+## Changed
+- OTP builds are now built on erlang OTP26
+- The base Phoenix framework is now updated to 1.7
+- An `outbox` field has been added to actor profiles to comply with AP spec
+- User profile backgrounds do now federate with other Akkoma instances and Sharkey
+
+## Fixed
+- Documentation issue in which a non-existing nginx file was referenced
 - Issue where a bad inbox URL could break federation
+- Issue where hashtag rel values would be scrubbed
+- Issue where short domains listed in `transparency_obfuscate_domains` were not actually obfuscated
 
 ## 2023.08
 

Dockerfile

@@ -1,4 +1,4 @@
-FROM hexpm/elixir:1.15.4-erlang-25.3.2.5-alpine-3.18.2
+FROM hexpm/elixir:1.15.4-erlang-26.0.2-alpine-3.18.2
 
 ENV MIX_ENV=prod
 ENV ERL_EPMD_ADDRESS=127.0.0.1

SECURITY.md

@@ -1,16 +1,21 @@
-# Pleroma backend security policy
+# Akkoma backend security handling
-
-## Supported versions
-
-Currently, Pleroma offers bugfixes and security patches only for the latest minor release.
-
-| Version | Support 
-|---------| --------
-| 2.2     | Bugfixes and security patches
 
 ## Reporting a vulnerability
 
-Please use confidential issues (tick the "This issue is confidential and should only be visible to team members with at least Reporter access." box when submitting) at our [bugtracker](https://git.pleroma.social/pleroma/pleroma/-/issues/new) for reporting vulnerabilities.
+Please send an email (preferably encrypted) or
+a DM via our IRC to one of the following people:
+
+| Forgejo nick | IRC nick      | Email         | GPG                                     |
+| ------------ | ------------- | ------------- | --------------------------------------- |
+| floatinghost | FloatingGhost | *see GPG key* | https://coffee-and-dreams.uk/pubkey.asc |
+
 ## Announcements
 
-New releases are announced at [pleroma.social](https://pleroma.social/announcements/). All security releases are tagged with ["Security"](https://pleroma.social/announcements/tags/security/). You can be notified of them by subscribing to an Atom feed at <https://pleroma.social/announcements/tags/security/feed.xml>. 
+New releases and security issues are announced at
+[meta.akkoma.dev](https://meta.akkoma.dev/c/releases) and
+[@akkoma@ihatebeinga.live](https://ihatebeinga.live/akkoma).
+
+Both also offer RSS feeds
+([meta](https://meta.akkoma.dev/c/releases/7.rss),
+[fedi](https://ihatebeinga.live/users/akkoma.rss))
+so you can keep an eye on it without any accounts.

config/config.exs

@@ -61,11 +61,12 @@
 # Upload configuration
 config :pleroma, Pleroma.Upload,
   uploader: Pleroma.Uploaders.Local,
-  filters: [Pleroma.Upload.Filter.Dedupe],
+  filters: [],
   link_name: false,
   proxy_remote: false,
   filename_display_max_length: 30,
-  base_url: nil
+  base_url: nil,
+  allowed_mime_types: ["image", "audio", "video"]
 
 config :pleroma, Pleroma.Uploaders.Local, uploads: "uploads"
 
@@ -110,17 +111,6 @@
     "xmpp"
   ]
 
-websocket_config = [
-  path: "/websocket",
-  serializer: [
-    {Phoenix.Socket.V1.JSONSerializer, "~> 1.0.0"},
-    {Phoenix.Socket.V2.JSONSerializer, "~> 2.0.0"}
-  ],
-  timeout: 60_000,
-  transport_log: false,
-  compress: false
-]
-
 # Configures the endpoint
 config :pleroma, Pleroma.Web.Endpoint,
   url: [host: "localhost"],
@@ -130,10 +120,7 @@
       {:_,
        [
          {"/api/v1/streaming", Pleroma.Web.MastodonAPI.WebsocketHandler, []},
-         {"/websocket", Phoenix.Endpoint.CowboyWebSocket,
+         {:_, Plug.Cowboy.Handler, {Pleroma.Web.Endpoint, []}}
-          {Phoenix.Transports.WebSocket,
-           {Pleroma.Web.Endpoint, Pleroma.Web.UserSocket, websocket_config}}},
-         {:_, Phoenix.Endpoint.Cowboy2Handler, {Pleroma.Web.Endpoint, []}}
        ]}
     ]
   ],
@@ -162,14 +149,38 @@
   format: "$metadata[$level] $message",
   metadata: [:request_id]
 
+# ———————————————————————————————————————————————————————————————
+#                       W  A  R  N  I  N  G
+# ———————————————————————————————————————————————————————————————
+#
+#  Whenever adding a privileged new custom type for e.g.
+#  ActivityPub objects, ALWAYS map their extension back
+#  to "application/octet-stream".
+#  Else files served by us can automatically end up with
+#  those privileged types causing severe security hazards.
+#  (We need those mappings so Phoenix can assoiate its format
+#   (the "extension") to incoming requests of those MIME types)
+#
+# ———————————————————————————————————————————————————————————————
 config :mime, :types, %{
   "application/xml" => ["xml"],
   "application/xrd+xml" => ["xrd+xml"],
   "application/jrd+json" => ["jrd+json"],
   "application/activity+json" => ["activity+json"],
-  "application/ld+json" => ["activity+json"]
+  "application/ld+json" => ["activity+json"],
+  # Can be removed when bumping MIME past 2.0.5
+  # see https://akkoma.dev/AkkomaGang/akkoma/issues/657
+  "image/apng" => ["apng"]
 }
 
+config :mime, :extensions, %{
+  "xrd+xml" => "text/plain",
+  "jrd+json" => "text/plain",
+  "activity+json" => "text/plain"
+}
+
+# ———————————————————————————————————————————————————————————————
+
 config :tesla, :adapter, {Tesla.Adapter.Finch, name: MyFinch}
 
 # Configures http settings, upstream proxy etc.
@@ -300,7 +311,6 @@
     alwaysShowSubjectInput: true,
     background: "/images/city.jpg",
     collapseMessageWithSubject: false,
-    disableChat: false,
     greentext: false,
     hideFilteredStatuses: false,
     hideMutedPosts: false,
@@ -388,6 +398,7 @@
   accept: [],
   avatar_removal: [],
   banner_removal: [],
+  background_removal: [],
   reject_deletes: [],
   handle_threads: true
 
@@ -416,8 +427,6 @@
   threshold: 604_800,
   actions: [:delist, :strip_followers]
 
-config :pleroma, :mrf_follow_bot, follower_nickname: nil
-
 config :pleroma, :mrf_reject_newly_created_account_notes, age: 86_400
 
 config :pleroma, :rich_media,
@@ -463,10 +472,6 @@
   image_quality: 85,
   min_content_length: 100 * 1024
 
-config :pleroma, :shout,
-  enabled: true,
-  limit: 5_000
-
 config :phoenix, :format_encoders, json: Jason, "activity+json": Jason
 
 config :phoenix, :json_library, Jason

config/description.exs

@@ -105,6 +105,19 @@
           "https://cdn-host.com"
         ]
       },
+      %{
+        key: :allowed_mime_types,
+        label: "Allowed MIME types",
+        type: {:list, :string},
+        description:
+          "List of MIME (main) types uploads are allowed to identify themselves with. Other types may still be uploaded, but will identify as a generic binary to clients. WARNING: Loosening this over the defaults can lead to security issues. Removing types is safe, but only add to the list if you are sure you know what you are doing.",
+        suggestions: [
+          "image",
+          "audio",
+          "video",
+          "font"
+        ]
+      },
       %{
         key: :proxy_remote,
         type: :boolean,

docker-compose.yml

@@ -4,6 +4,7 @@ services:
   db:
     image: akkoma-db:latest
     build: ./docker-resources/database
+    shm_size: 4gb
     restart: unless-stopped
     user: ${DOCKER_USER}
     environment: {

docs/docs/administration/CLI_tasks/robots_txt.md

@@ -17,5 +17,5 @@ If you want to generate a restrictive `robots.txt`, you can run the following mi
 === "From Source"
 
     ```sh
-    mix pleroma.robotstxt disallow_all
+    mix pleroma.robots_txt disallow_all
     ```

docs/docs/administration/CLI_tasks/security.md

@@ -0,0 +1,56 @@
+# Security-related tasks
+
+{! administration/CLI_tasks/general_cli_task_info.include !}
+
+!!! danger
+    Many of these tasks were written in response to a patched exploit.
+    It is recommended to run those very soon after installing its respective security update.
+    Over time with db migrations they might become less accurate or be removed altogether.
+    If you never ran an affected version, there’s no point in running them.
+
+## Spoofed AcitivityPub objects exploit (2024-03, fixed in 3.11.1)
+
+### Search for uploaded spoofing payloads
+
+Scans local uploads for spoofing payloads.
+If the instance is not using the local uploader it was not affected.
+Attachments wil be scanned anyway in case local uploader was used in the past.
+
+!!! note
+    This cannot reliably detect payloads attached to deleted posts.
+
+=== "OTP"
+
+    ```sh
+    ./bin/pleroma_ctl security spoof-uploaded
+    ```
+
+=== "From Source"
+
+    ```sh
+    mix pleroma.security spoof-uploaded
+    ```
+
+### Search for counterfeit posts in database
+
+Scans all notes in the database for signs of being spoofed.
+
+!!! note
+    Spoofs targeting local accounts can be detected rather reliably
+    (with some restrictions documented in the task’s logs).
+    Counterfeit posts from remote users cannot. A best-effort attempt is made, but
+    a thorough attacker can avoid this and it may yield a small amount of false positives.
+
+    Should you find counterfeit posts of local users, let other admins know so they can delete the too.
+
+=== "OTP"
+
+    ```sh
+    ./bin/pleroma_ctl security spoof-inserted
+    ```
+
+=== "From Source"
+
+    ```sh
+    mix pleroma.security spoof-inserted
+    ```

docs/docs/administration/backup.md

@@ -45,3 +45,16 @@
 8. Remove the dependencies that you don't need anymore (see installation guide). Make sure you don't remove packages that are still needed for other software that you have running!
 
 [¹]: We assume the database name and user are both "akkoma". If not, you can find the correct name in your config files.  
+
+## Docker installations
+
+If running behind Docker, it is required to run the above commands inside of a running database container.  
+
+### Example
+Running `docker compose run --rm db pg_dump <...>` will fail and return:
+```
+pg_dump: error: connection to server on socket "/run/postgresql/.s.PGSQL.5432" failed: No such file or directory 
+Is the server running locally and accepting connections on that socket?"
+```
+However, first starting just the database container with `docker compose up db -d`, and then running `docker compose exec db pg_dump -d akkoma --format=custom -f </your/backup/dir/akkoma.pgdump>` will successfully generate a database dump.  
+Then to make the file accessible on the host system you can run `docker compose cp db:</your/backup/dir/akkoma.pgdump> </your/target/location>` to copy if from the container.

docs/docs/administration/monitoring.md

@@ -3,7 +3,7 @@
 If you run akkoma, you may be inclined to collect metrics to ensure your instance is running smoothly,
 and that there's nothing quietly failing in the background.
 
-To facilitate this, akkoma exposes prometheus metrics to be scraped.
+To facilitate this, akkoma exposes a dashboard and prometheus metrics to be scraped.
 
 ## Prometheus
 
@@ -31,3 +31,15 @@ Once you have your token of the form `Bearer $ACCESS_TOKEN`, you can use that in
   - targets:
     - example.com
 ```
+
+## Dashboard
+
+Administrators can access a live dashboard under `/phoenix/live_dashboard`
+giving an overview of uptime, software versions, database stats and more.
+
+The dashboard also includes a variation of the prometheus metrics, however
+they do not exactly match due to respective limitations of the dashboard
+and the prometheus exporter.
+Even more important, the dashboard collects metrics locally in the browser
+only while the page is open and cannot give a view on their past history.
+For proper monitoring it is recommended to set up prometheus.

docs/docs/configuration/cheatsheet.md

@@ -104,31 +104,60 @@ To add configuration to your config file, you can copy it from the base config.
 ## Message rewrite facility
 
 ### :mrf
-* `policies`: Message Rewrite Policy, either one or a list. Here are the ones available by default:
-    * `Pleroma.Web.ActivityPub.MRF.NoOpPolicy`: Doesn’t modify activities (default).
-    * `Pleroma.Web.ActivityPub.MRF.DropPolicy`: Drops all activities. It generally doesn’t makes sense to use in production.
-    * `Pleroma.Web.ActivityPub.MRF.SimplePolicy`: Restrict the visibility of activities from certains instances (See [`:mrf_simple`](#mrf_simple)).
-    * `Pleroma.Web.ActivityPub.MRF.TagPolicy`: Applies policies to individual users based on tags, which can be set using pleroma-fe/admin-fe/any other app that supports Pleroma Admin API. For example it allows marking posts from individual users nsfw (sensitive).
-    * `Pleroma.Web.ActivityPub.MRF.SubchainPolicy`: Selectively runs other MRF policies when messages match (See [`:mrf_subchain`](#mrf_subchain)).
-    * `Pleroma.Web.ActivityPub.MRF.RejectNonPublic`: Drops posts with non-public visibility settings (See [`:mrf_rejectnonpublic`](#mrf_rejectnonpublic)).
-    * `Pleroma.Web.ActivityPub.MRF.EnsureRePrepended`: Rewrites posts to ensure that replies to posts with subjects do not have an identical subject and instead begin with re:.
-    * `Pleroma.Web.ActivityPub.MRF.AntiLinkSpamPolicy`: Rejects posts from likely spambots by rejecting posts from new users that contain links.
-    * `Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy`: Crawls attachments using their MediaProxy URLs so that the MediaProxy cache is primed.
-    * `Pleroma.Web.ActivityPub.MRF.MentionPolicy`: Drops posts mentioning configurable users. (See [`:mrf_mention`](#mrf_mention)).
-    * `Pleroma.Web.ActivityPub.MRF.VocabularyPolicy`: Restricts activities to a configured set of vocabulary. (See [`:mrf_vocabulary`](#mrf_vocabulary)).
-    * `Pleroma.Web.ActivityPub.MRF.ObjectAgePolicy`: Rejects or delists posts based on their age when received. (See [`:mrf_object_age`](#mrf_object_age)).
-    * `Pleroma.Web.ActivityPub.MRF.ActivityExpirationPolicy`: Sets a default expiration on all posts made by users of the local instance. Requires `Pleroma.Workers.PurgeExpiredActivity` to be enabled for processing the scheduled delections.
-    * `Pleroma.Web.ActivityPub.MRF.ForceBotUnlistedPolicy`: Makes all bot posts to disappear from public timelines.
-    * `Pleroma.Web.ActivityPub.MRF.FollowBotPolicy`: Automatically follows newly discovered users from the specified bot account. Local accounts, locked accounts, and users with "#nobot" in their bio are respected and excluded from being followed.
-    * `Pleroma.Web.ActivityPub.MRF.AntiFollowbotPolicy`: Drops follow requests from followbots. Users can still allow bots to follow them by first following the bot.
-    * `Pleroma.Web.ActivityPub.MRF.KeywordPolicy`: Rejects or removes from the federated timeline or replaces keywords. (See [`:mrf_keyword`](#mrf_keyword)).
-    * `Pleroma.Web.ActivityPub.MRF.NormalizeMarkup`: Pass inbound HTML through a scrubber to make sure it doesn't have anything unusual in it. On by default, cannot be turned off.
-    * `Pleroma.Web.ActivityPub.MRF.InlineQuotePolicy`: Append a link to a post that quotes another post with the link to the quoted post, to ensure that software that does not understand quotes can have full context. On by default, cannot be turned off.
 * `transparency`: Make the content of your Message Rewrite Facility settings public (via nodeinfo).
 * `transparency_exclusions`: Exclude specific instance names from MRF transparency.  The use of the exclusions feature will be disclosed in nodeinfo as a boolean value.
 * `transparency_obfuscate_domains`: Show domains with `*` in the middle, to censor them if needed. For example, `ridingho.me` will show as `rid*****.me`
+* `policies`: Message Rewrite Policy, either one or a list. Here are the ones available by default:
+    * `Pleroma.Web.ActivityPub.MRF.NoOpPolicy`: Doesn’t modify activities (default).
+    * `Pleroma.Web.ActivityPub.MRF.DropPolicy`: Drops all activities. It generally doesn’t makes sense to use in production.
+    * `Pleroma.Web.ActivityPub.MRF.ActivityExpirationPolicy`: Sets a default expiration on all posts made by users of the local instance. Requires `Pleroma.Workers.PurgeExpiredActivity` to be enabled for processing the scheduled delections.
+      (See [`:mrf_activity_expiration`](#mrf_activity_expiration))
+    * `Pleroma.Web.ActivityPub.MRF.AntiFollowbotPolicy`: Drops follow requests from followbots. Users can still allow bots to follow them by first following the bot.
+    * `Pleroma.Web.ActivityPub.MRF.AntiLinkSpamPolicy`: Rejects posts from likely spambots by rejecting posts from new users that contain links.
+    * `Pleroma.Web.ActivityPub.MRF.EnsureRePrepended`: Rewrites posts to ensure that replies to posts with subjects do not have an identical subject and instead begin with re:.
+    * `Pleroma.Web.ActivityPub.MRF.ForceBotUnlistedPolicy`: Makes all bot posts to disappear from public timelines.
+    * `Pleroma.Web.ActivityPub.MRF.HellthreadPolicy`: Blocks messages with too many mentions.
+      (See [`mrf_hellthread`](#mrf_hellthread))
+    * `Pleroma.Web.ActivityPub.MRF.KeywordPolicy`: Rejects or removes from the federated timeline or replaces keywords. (See [`:mrf_keyword`](#mrf_keyword)).
+    * `Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy`: Crawls attachments using their MediaProxy URLs so that the MediaProxy cache is primed.
+    * `Pleroma.Web.ActivityPub.MRF.MentionPolicy`: Drops posts mentioning configurable users. (See [`:mrf_mention`](#mrf_mention)).
+    * `Pleroma.Web.ActivityPub.MRF.NoEmptyPolicy`: Drops local activities which have no actual content.
+       (e.g. no attachments and only consists of mentions)
+    * `Pleroma.Web.ActivityPub.MRF.NoPlaceholderTextPolicy`: Strips content placeholders from posts
+      (such as the dot from mastodon)
+    * `Pleroma.Web.ActivityPub.MRF.ObjectAgePolicy`: Rejects or delists posts based on their age when received. (See [`:mrf_object_age`](#mrf_object_age)).
+    * `Pleroma.Web.ActivityPub.MRF.RejectNewlyCreatedAccountNotesPolicy`: Rejects posts of users the server only recently learned about for a while. Great to block spam accounts. (See [`:mrf_reject_newly_created_account_notes`](#mrf_reject_newly_created_account_notes))
+    * `Pleroma.Web.ActivityPub.MRF.RejectNonPublic`: Drops posts with non-public visibility settings (See [`:mrf_rejectnonpublic`](#mrf_rejectnonpublic)).
+    * `Pleroma.Web.ActivityPub.MRF.SimplePolicy`: Restrict the visibility of activities from certains instances (See [`:mrf_simple`](#mrf_simple)).
+    * `Pleroma.Web.ActivityPub.MRF.StealEmojiPolicy`: Steals all eligible emoji encountered in posts from remote instances
+      (See [`:mrf_steal_emoji`](#mrf_steal_emoji))
+    * `Pleroma.Web.ActivityPub.MRF.SubchainPolicy`: Selectively runs other MRF policies when messages match (See [`:mrf_subchain`](#mrf_subchain)).
+    * `Pleroma.Web.ActivityPub.MRF.TagPolicy`: Applies policies to individual users based on tags, which can be set using pleroma-fe/admin-fe/any other app that supports Pleroma Admin API. For example it allows marking posts from individual users nsfw (sensitive).
+    * `Pleroma.Web.ActivityPub.MRF.UserAllowListPolicy`: Drops all posts except from users specified in a list.
+      (See [`:mrf_user_allowlist`](#mrf_user_allowlist))
+    * `Pleroma.Web.ActivityPub.MRF.VocabularyPolicy`: Restricts activities to a configured set of vocabulary. (See [`:mrf_vocabulary`](#mrf_vocabulary)).
+
+Additionally the following MRFs will *always* be aplied and cannot be disabled:
+
+* `Pleroma.Web.ActivityPub.MRF.DirectMessageDisabledPolicy`: Strips users limiting who can send them DMs from the recipients of non-eligible DMs
+* `Pleroma.Web.ActivityPub.MRF.HashtagPolicy`: Depending on a post’s hashtags it can be rejected, get its sensitive flags force-enabled or removed from the global timeline
+    (See [`:mrf_hashtag`](#mrf_hashtag))
+* `Pleroma.Web.ActivityPub.MRF.InlineQuotePolicy`: Append a link to a post that quotes another post with the link to the quoted post, to ensure that software that does not understand quotes can have full context.
+    (See [`:mrf_inline_quote`](#mrf_inline_quote))
+* `Pleroma.Web.ActivityPub.MRF.NormalizeMarkup`: Pass inbound HTML through a scrubber to make sure it doesn't have anything unusual in it.
+    (See [`:mrf_normalize_markup`](#mrf_normalize_markup))
+
 
 ## Federation
+### :activitypub
+* `unfollow_blocked`: Whether blocks result in people getting unfollowed
+* `outgoing_blocks`: Whether to federate blocks to other instances
+* `blockers_visible`: Whether a user can see the posts of users who blocked them
+* `deny_follow_blocked`: Whether to disallow following an account that has blocked the user in question
+* `sign_object_fetches`: Sign object fetches with HTTP signatures
+* `authorized_fetch_mode`: Require HTTP signatures for AP fetches
+* `max_collection_objects`: The maximum number of objects to fetch from a remote AP collection.
+
 ### MRF policies
 
 !!! note
@@ -144,6 +173,7 @@ To add configuration to your config file, you can copy it from the base config.
 * `report_removal`: List of instances to reject reports from and the reason for doing so.
 * `avatar_removal`: List of instances to strip avatars from and the reason for doing so.
 * `banner_removal`: List of instances to strip banners from and the reason for doing so.
+* `background_removal`: List of instances to strip user backgrounds from and the reason for doing so.
 * `reject_deletes`: List of instances to reject deletions from and the reason for doing so.
 
 #### :mrf_subchain
@@ -206,7 +236,9 @@ config :pleroma, :mrf_user_allowlist, %{
 #### :mrf_steal_emoji
 * `hosts`: List of hosts to steal emojis from
 * `rejected_shortcodes`: Regex-list of shortcodes to reject
-* `size_limit`: File size limit (in bytes), checked before an emoji is saved to the disk
+* `size_limit`: File size limit (in bytes), checked before download if possible (and remote server honest),
+   otherwise or again checked before saving emoji to the disk
+* `download_unknown_size`: whether to download an emoji when the remote server doesn’t report its size in advance
 
 #### :mrf_activity_expiration
 
@@ -222,14 +254,24 @@ Notes:
 - The hashtags in the configuration do not have a leading `#`.
 - This MRF Policy is always enabled, if you want to disable it you have to set empty lists
 
-### :activitypub
+#### :mrf_reject_newly_created_account_notes
-* `unfollow_blocked`: Whether blocks result in people getting unfollowed
+After initially encountering an user, all their posts
-* `outgoing_blocks`: Whether to federate blocks to other instances
+will be rejected for the configured time (in seconds).
-* `blockers_visible`: Whether a user can see the posts of users who blocked them
+Only drops posts. Follows, reposts, etc. are not affected.
-* `deny_follow_blocked`: Whether to disallow following an account that has blocked the user in question
+
-* `sign_object_fetches`: Sign object fetches with HTTP signatures
+* `age`: Time below which to reject (in seconds)
-* `authorized_fetch_mode`: Require HTTP signatures for AP fetches
+
-* `max_collection_objects`: The maximum number of objects to fetch from a remote AP collection.
+An example: (86400 seconds = 24 hours)
+
+```elixir
+config :pleroma, :mrf_reject_newly_created_account_notes, age: 86400
+```
+
+#### :mrf_inline_quote
+* `prefix`: what prefix to prepend to quoted URLs
+
+#### :mrf_normalize_markup
+* `scrub_policy`: the scrubbing module to use (by default a built-in HTML sanitiser)
 
 ## Pleroma.User
 
@@ -356,7 +398,8 @@ This section describe PWA manifest instance-specific values. Currently this opti
 ## :media_proxy
 
 * `enabled`: Enables proxying of remote media to the instance’s proxy
-* `base_url`: The base URL to access a user-uploaded file. Useful when you want to proxy the media files via another host/CDN fronts.
+* `base_url`: The base URL to access a user-uploaded file.
+  Using a (sub)domain distinct from the instance endpoint is **strongly** recommended.
 * `proxy_opts`: All options defined in `Pleroma.ReverseProxy` documentation, defaults to `[max_body_length: (25*1_048_576)]`.
 * `whitelist`: List of hosts with scheme to bypass the mediaproxy (e.g. `https://example.com`)
 * `invalidation`: options for remove media from cache after delete object:
@@ -557,8 +600,9 @@ the source code is here: [kocaptcha](https://github.com/koto-bank/kocaptcha). Th
 
 * `uploader`: Which one of the [uploaders](#uploaders) to use.
 * `filters`: List of [upload filters](#upload-filters) to use.
-* `link_name`: When enabled Akkoma will add a `name` parameter to the url of the upload, for example `https://instance.tld/media/corndog.png?name=corndog.png`. This is needed to provide the correct filename in Content-Disposition headers when using filters like `Pleroma.Upload.Filter.Dedupe`
+* `link_name`: When enabled Akkoma will add a `name` parameter to the url of the upload, for example `https://instance.tld/media/corndog.png?name=corndog.png`. This is needed to provide the correct filename in Content-Disposition headers
-* `base_url`: The base URL to access a user-uploaded file. Useful when you want to host the media files via another domain or are using a 3rd party S3 provider.
+* `base_url`: The base URL to access a user-uploaded file; MUST be configured explicitly.
+  Using a (sub)domain distinct from the instance endpoint is **strongly** recommended.
 * `proxy_remote`: If you're using a remote uploader, Akkoma will proxy media requests instead of redirecting to it.
 * `proxy_opts`: Proxy options, see `Pleroma.ReverseProxy` documentation.
 * `filename_display_max_length`: Set max length of a filename to display. 0 = no limit. Default: 30.
@@ -598,17 +642,18 @@ config :ex_aws, :s3,
 
 ### Upload filters
 
-#### Pleroma.Upload.Filter.AnonymizeFilename
-
-This filter replaces the filename (not the path) of an upload. For complete obfuscation, add
-`Pleroma.Upload.Filter.Dedupe` before AnonymizeFilename.
-
-* `text`: Text to replace filenames in links. If empty, `{random}.extension` will be used. You can get the original filename extension by using `{extension}`, for example `custom-file-name.{extension}`.
-
 #### Pleroma.Upload.Filter.Dedupe
 
+**Always** active; cannot be turned off.
+Renames files to their hash and prevents duplicate files filling up the disk.
 No specific configuration.
 
+#### Pleroma.Upload.Filter.AnonymizeFilename
+
+This filter replaces the declared filename (not the path) of an upload.
+
+* `text`: Text to replace filenames in links. If empty, `{random}.extension` will be used. You can get the original filename extension by using `{extension}`, for example `custom-file-name.{extension}`.
+
 #### Pleroma.Upload.Filter.Exiftool
 
 This filter only strips the GPS and location metadata with Exiftool leaving color profiles and attributes intact.
@@ -958,6 +1003,15 @@ config :ueberauth, Ueberauth,
   ]
 ```
 
+You may also need to set up your frontend to use oauth logins. For example, for `akkoma-fe`:
+
+```elixir
+config :pleroma, :frontend_configurations,
+  pleroma_fe: %{
+    loginMethod: "token"
+  }
+```
+
 ## Link parsing
 
 ### :uri_schemes

docs/docs/configuration/hardening.md

@@ -17,6 +17,16 @@ This sets the Akkoma application server to only listen to the localhost interfac
 
 This sets the `secure` flag on Akkoma’s session cookie. This makes sure, that the cookie is only accepted over encrypted HTTPs connections. This implicitly renames the cookie from `pleroma_key` to `__Host-pleroma-key` which enforces some restrictions. (see [cookie prefixes](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie#Cookie_prefixes))
 
+### `Pleroma.Upload, :uploader, :base_url`
+
+> Recommended value: *anything on a different domain than the instance endpoint; e.g. https://media.myinstance.net/*
+
+Uploads are user controlled and (unless you’re running a true single-user
+instance) should therefore not be considered trusted. But the domain is used
+as a pivilege boundary e.g. by HTTP content security policy and ActivityPub.
+Having uploads on the same domain enabled several past vulnerabilities
+able to be exploited by malicious users.
+
 ### `:http_security`
 
 > Recommended value: `true`

docs/docs/configuration/howto_mediaproxy.md

@@ -6,7 +6,16 @@ With the `mediaproxy` function you can use nginx to cache this content, so users
 
 ## Activate it
 
-* Edit your nginx config and add the following location: 
+* Edit your nginx config and add the following location to your main server block:
+```
+location /proxy {
+        return 404;
+}
+```
+
+* Set up a subdomain for the proxy with its nginx config on the same machine
+  *(the latter is not strictly required, but for simplicity we’ll assume so)*
+* In this subdomain’s server block add
 ```
 location /proxy {
         proxy_cache akkoma_media_cache;
@@ -26,9 +35,9 @@ config :pleroma, :media_proxy,
       enabled: true,
       proxy_opts: [
             redirect_on_failure: true
-      ]
+      ],
-      #base_url: "https://cache.akkoma.social"
+      base_url: "https://cache.akkoma.social"
 ```
-If you want to use a subdomain to serve the files, uncomment `base_url`, change the url and add a comma after `true` in the previous line.
+You **really** should use a subdomain to serve proxied files; while we will fix bugs resulting from this, serving arbitrary remote content on your main domain namespace is a significant attack surface.
 
 * Restart nginx and Akkoma

docs/docs/configuration/howto_theming_your_instance.md

@@ -60,7 +60,7 @@ Example of `my-awesome-theme.json` where we add the name "My Awesome Theme"
 
 ### Set as default theme
 
-Now we can set the new theme as default in the [Pleroma FE configuration](https://docs-fe.akkoma.dev/stable/CONFIGURATION).
+Now we can set the new theme as default in the [Pleroma FE configuration](https://docs-fe.akkoma.dev/stable/CONFIGURATION/).
 
 Example of adding the new theme in the back-end config files
 ```elixir

docs/docs/configuration/mrf.md

@@ -35,6 +35,7 @@ Once `SimplePolicy` is enabled, you can configure various groups in the `:mrf_si
 * `media_removal`: Servers in this group will have media stripped from incoming messages.
 * `avatar_removal`: Avatars from these servers will be stripped from incoming messages.
 * `banner_removal`: Banner images from these servers will be stripped from incoming messages.
+* `background_removal`: User background images from these servers will be stripped from incoming messages.
 * `report_removal`: Servers in this group will have their reports (flags) rejected.
 * `federated_timeline_removal`: Servers in this group will have their messages unlisted from the public timelines by flipping the `to` and `cc` fields.
 * `reject_deletes`: Deletion requests will be rejected from these servers.
@@ -61,6 +62,32 @@ config :pleroma, :mrf_simple,
 
 The effects of MRF policies can be very drastic. It is important to use this functionality carefully. Always try to talk to an admin before writing an MRF policy concerning their instance.
 
+## Hiding or Obfuscating Policies
+
+You can opt out of publicly displaying all MRF policies or only hide or obfuscate selected domains.
+
+To just hide everything set:
+
+```elixir
+config :pleroma, :mrf,
+  ...
+  transparency: false,
+```
+
+To hide or obfuscate only select entries, use:
+
+```elixir
+config :pleroma, :mrf,
+  ...
+  transparency_obfuscate_domains: ["handholdi.ng", "badword.com"],
+  transparency_exclusions: [{"ghost.club", "even a fragment is too spoopy for humans"}]
+```
+
+## More MRF Policies
+
+See the [documentation cheatsheet](cheatsheet.md)
+for all available MRF policies and their options.
+
 ## Writing your own MRF Policy
 
 As discussed above, the MRF system is a modular system that supports pluggable policies. This means that an admin may write a custom MRF policy in Elixir or any other language that runs on the Erlang VM, by specifying the module name in the `policies` config setting.

docs/docs/configuration/optimisation/optimizing_beam.md

@@ -25,11 +25,14 @@ Tuning the BEAM requires you provide a config file normally called [vm.args](htt
 
 `ExecStart=/usr/bin/elixir --erl '-args_file /opt/akkoma/config/vm.args' -S /usr/bin/mix phx.server`
 
+If using an OTP release, set the `RELEASE_VM_ARGS` environment variable to the path to the vm.args file.
+
 Check your OS documentation to adopt a similar strategy on other platforms.
 
 ### Virtual Machine and/or few CPU cores
 
-Disable the busy-waiting. This should generally only be done if you're on a platform that does burst scheduling, like AWS.
+Disable the busy-waiting. This should generally be done if you're on a platform that does burst scheduling, like AWS, or if you're running other
+services on the same machine.
 
 **vm.args:**
 
@@ -39,6 +42,8 @@ Disable the busy-waiting. This should generally only be done if you're on a plat
 +sbwtdio none
 ```
 
+These settings are enabled by default for OTP releases
+
 ### Dedicated Hardware
 
 Enable more busy waiting, increase the internal maximum limit of BEAM processes and ports. You can use this if you run on dedicated hardware, but it is not necessary.

docs/docs/development/API/akkoma_api.md

@@ -0,0 +1,146 @@
+# Akkoma API
+
+Request authentication (if required) and parameters work the same as for [Pleroma API](pleroma_api.md).
+
+## `/api/v1/akkoma/preferred_frontend/available`
+### Returns the available frontends which can be picked as the preferred choice
+* Method: `GET`
+* Authentication: not required
+* Params: none
+* Response: JSON
+* Example response:
+```json
+["pleroma-fe/stable"]
+```
+
+!!! note
+    There’s also a browser UI under `/akkoma/frontend`
+    for interactively querying and changing this.
+
+## `/api/v1/akkoma/preferred_frontend`
+### Configures the preferred frontend of this session
+* Method: `PUT`
+* Authentication: not required
+* Params:
+    * `frontend_name`: STRING containing one of the available frontends
+* Response: JSON
+* Example response:
+```json
+{"frontend_name":"pleroma-fe/stable"}
+```
+
+!!! note
+    There’s also a browser UI under `/akkoma/frontend`
+    for interactively querying and changing this.
+
+## `/api/v1/akkoma/metrics`
+### Provides metrics for Prometheus to scrape
+* Method: `GET`
+* Authentication: required (admin:metrics)
+* Params: none
+* Response: text
+* Example response:
+```
+# HELP pleroma_remote_users_total
+# TYPE pleroma_remote_users_total gauge
+pleroma_remote_users_total 25
+# HELP pleroma_local_statuses_total
+# TYPE pleroma_local_statuses_total gauge
+pleroma_local_statuses_total 17
+# HELP pleroma_domains_total
+# TYPE pleroma_domains_total gauge
+pleroma_domains_total 4
+# HELP pleroma_local_users_total
+# TYPE pleroma_local_users_total gauge
+pleroma_local_users_total 3
+...
+```
+
+## `/api/v1/akkoma/translation/languages`
+### Returns available source and target languages for automated text translation
+* Method: `GET`
+* Authentication: required
+* Params: none
+* Response: JSON
+* Example response:
+```json
+{
+  "source": [
+    {"code":"LV", "name":"Latvian"},
+    {"code":"ZH", "name":"Chinese (traditional)"},
+    {"code":"EN-US", "name":"English (American)"}
+  ],
+  "target": [
+    {"code":"EN-GB", "name":"English (British)"},
+    {"code":"JP", "name":"Japanese"}
+  ]
+}
+```
+
+## `/api/v1/akkoma/frontend_settings/:frontend_name`
+### Lists all configuration profiles of the selected frontend for the current user
+* Method: `GET`
+* Authentication: required
+* Params: none
+* Response: JSON
+* Example response:
+```json
+[
+  {"name":"default","version":31}
+]
+```
+
+## `/api/v1/akkoma/frontend_settings/:frontend_name/:profile_name`
+### Returns the full selected frontend settings profile of the current user
+* Method: `GET`
+* Authentication: required
+* Params: none
+* Response: JSON
+* Example response:
+```json
+{
+  "version": 31,
+  "settings": {
+    "streaming": true,
+    "conversationDisplay": "tree",
+    ...
+  }
+}
+```
+
+## `/api/v1/akkoma/frontend_settings/:frontend_name/:profile_name`
+### Updates the frontend settings profile
+* Method: `PUT`
+* Authentication: required
+* Params:
+    * `version`: INTEGER
+    * `settings`: JSON object containing the entire new settings
+* Response: JSON
+* Example response:
+```json
+{
+  "streaming": false,
+  "conversationDisplay": "tree",
+  ...
+}
+```
+
+!!! note
+    The `version` field must be increased by exactly one on each update
+
+## `/api/v1/akkoma/frontend_settings/:frontend_name/:profile_name`
+### Drops the specified frontend settings profile
+* Method: `DELETE`
+* Authentication: required
+* Params: none
+* Response: JSON
+* Example response:
+```json
+{"deleted":"ok"}
+```
+
+
+## `/api/v1/timelines/bubble`
+### Returns a timeline for the local and closely related instances
+Works like all other Mastodon-API timeline queries with the documented
+[Akkoma-specific additions and tweaks](./differences_in_mastoapi_responses.md#timelines).

docs/docs/development/API/differences_in_mastoapi_responses.md

@@ -1,6 +1,6 @@
 # Differences in Mastodon API responses from vanilla Mastodon
 
-A Akkoma instance can be identified by "<Mastodon version> (compatible; Pleroma <version>)" present in `version` field in response from `/api/v1/instance`
+A Akkoma instance can be identified by "<Mastodon version> (compatible; Akkoma <version>)" present in `version` field in response from `/api/v1/instance`
 
 ## Flake IDs
 
@@ -8,20 +8,28 @@ Akkoma uses 128-bit ids as opposed to Mastodon's 64 bits. However, just like Mas
 
 ## Timelines
 
+In addition to Mastodon’s timelines, there is also a “bubble timeline” showing
+posts from the local instance and a set of closely related instances as chosen
+by the administrator. It is available under `/api/v1/timelines/bubble`.
+
 Adding the parameter `with_muted=true` to the timeline queries will also return activities by muted (not by blocked!) users.
 
 Adding the parameter `exclude_visibilities` to the timeline queries will exclude the statuses with the given visibilities. The parameter accepts an array of visibility types (`public`, `unlisted`, `private`, `direct`), e.g., `exclude_visibilities[]=direct&exclude_visibilities[]=private`.
 
-Adding the parameter `reply_visibility` to the public and home timelines queries will filter replies. Possible values: without parameter (default) shows all replies, `following` - replies directed to you or users you follow, `self` - replies directed to you.
+Adding the parameter `reply_visibility` to the public, bubble or home timelines queries will filter replies. Possible values: without parameter (default) shows all replies, `following` - replies directed to you or users you follow, `self` - replies directed to you.
 
 Adding the parameter `instance=lain.com` to the public timeline will show only statuses originating from `lain.com` (or any remote instance).
 
-Home, public, hashtag & list timelines accept these parameters:
+All but the direct timeline accept these parameters:
 
 - `only_media`: show only statuses with media attached
-- `local`: show only local statuses
 - `remote`: show only remote statuses
 
+Home, public, hashtag & list timelines further accept:
+
+- `local`: show only local statuses
+
+
 ## Statuses
 
 - `visibility`: has additional possible values `list` and `local` (for local-only statuses)
@@ -113,6 +121,12 @@ Has these additional fields under the `pleroma` object:
 - `notification_settings`: object, can be absent. See `/api/v1/pleroma/notification_settings` for the parameters/keys returned.
 - `favicon`: nullable URL string, Favicon image of the user's instance
 
+Has these additional fields under the `akkoma` object:
+
+- `instance`: nullable object with metadata about the user’s instance
+- `status_ttl_days`: nullable int, default time after which statuses are deleted
+- `permit_followback`: boolean, whether follows from followed accounts are auto-approved
+
 ### Source
 
 Has these additional fields under the `pleroma` object:

docs/docs/installation/generic_dependencies.include

@@ -2,7 +2,7 @@
 
 * PostgreSQL 9.6+
 * Elixir 1.14+
-* Erlang OTP 24+
+* Erlang OTP 25+
 * git
 * file / libmagic
 * gcc (clang might also work)

docs/docs/installation/migrating_to_akkoma.md

@@ -21,6 +21,33 @@ fork of Akkoma - luckily this isn't very hard.
 You'll need to update the backend, then possibly the frontend, depending
 on your setup.
 
+## Backup diverging features
+
+As time goes on Akkoma and Pleroma added or removed different features
+and reorganised the database in a different way. If you want to be able to
+migrate back to Pleroma without losing any affected data, you’ll want to
+make a backup before starting the migration.  
+If you're not interested in migrating back, skip this section
+*(although it might be a good idea to temporarily keep a full DB backup
+just in case something unexpected happens during migration)*
+
+As of 2024-02 you will want to keep a backup of:
+
+- the entire `chats` and `chat_message_references` tables
+
+The following columns are not deleted by a migration to Akkoma, but a migration
+back to Pleroma or future Akkoma upgrades might affect them, so perhaps back them up as well:
+
+- the `birthday` of users and their `show_birthday` setting
+- the `expires_at` key of in the `user_relationships` table
+    *(used by temporary mutes)*
+
+The way cached instance metadata is stored differs, but since those
+will be refetched and updated anyway, there’s no need for a backup.
+
+Best check all newer migrations unique to Akkoma/Pleroma
+to get an up-to-date picture of what needs to be kept.
+
 ## From Source
 
 If you're running the source Akkoma install, you'll need to set the
@@ -34,16 +61,7 @@ git pull -r
 # to run "git merge stable" instead (or develop if you want)
 ```
 
-### WARNING - Migrating from Pleroma Develop
+And compile as usual.
-If you are on pleroma develop, and have updated since 2022-08, you may have issues with database migrations.
-
-Please roll back the given migrations:
-
-```bash
-MIX_ENV=prod mix ecto.rollback --migrations-path priv/repo/optional_migrations/pleroma_develop_rollbacks -n3
-```
-
-Then compile, migrate and restart as usual.
 
 ## From OTP
 
@@ -53,15 +71,44 @@ This will just be setting the update URL - find your flavour from the [mapping o
 export FLAVOUR=[the flavour you found above]
 
 ./bin/pleroma_ctl update --zip-url https://akkoma-updates.s3-website.fr-par.scw.cloud/stable/akkoma-$FLAVOUR.zip
-./bin/pleroma_ctl migrate
 ```
 
-Then restart. When updating in the future, you canjust use
+When updating in the future, you can just use
 
 ```bash
 ./bin/pleroma_ctl update --branch stable
 ```
 
+
+## Database Migrations
+### WARNING - Migrating from Pleroma past 2022-08
+If you are on Pleroma stable >= 2.5.0 or Pleroma develop, and
+have updated since 2022-08, you may have issues with database migrations.
+
+Please first roll back the given migrations:
+
+=== "OTP"
+    ```bash
+    ./bin/pleroma_ctl rollback --migrations-path priv/repo/optional_migrations/pleroma_develop_rollbacks -n5
+    ```
+=== "From Source"
+    ```bash
+    MIX_ENV=prod mix ecto.rollback --migrations-path priv/repo/optional_migrations/pleroma_develop_rollbacks -n5
+    ```
+
+### Applying Akkoma Database Migrations
+
+Just run
+
+=== "OTP"
+    ```bash
+    ./bin/pleroma_ctl migrate
+    ```
+=== "From Source"
+    ```bash
+    MIX_ENV=prod mix ecto.migrate
+    ```
+
 ## Frontend changes
 
 Akkoma comes with a few frontend changes as well as backend ones,
@@ -130,3 +177,4 @@ MIX_ENV=prod mix ecto.rollback --to 20210416051708
 ```
 
 Then switch back to Pleroma for updates (similar to how was done to migrate to Akkoma), and remove the front-ends. The front-ends are installed in the `frontends` folder in the [static directory](../configuration/static_dir.md). Once you are back to Pleroma, you will need to run the database migrations again. See the Pleroma documentation for this.
+After this use your previous backups to restore data from diverging features.

docs/docs/installation/otp_en.md

@@ -5,7 +5,7 @@
 This guide covers a installation using an OTP release. To install Akkoma from source, please check out the corresponding guide for your distro.
 
 ## Pre-requisites
-* A machine running Linux with GNU (e.g. Debian, Ubuntu) or musl (e.g. Alpine) libc and an `x86_64` CPU you have root access to. If you are not sure if it's compatible see [Detecting flavour section](#detecting-flavour) below
+* A machine running Linux with GNU (e.g. Debian, Ubuntu) or musl (e.g. Alpine) libc and an `x86_64` or `arm64` CPU you have root access to. If you are not sure if it's compatible see [Detecting flavour section](#detecting-flavour) below
 * For installing OTP releases on RedHat-based distros like Fedora and Centos Stream, please follow [this guide](./otp_redhat_en.md) instead.
 * A (sub)domain pointed to the machine
 
@@ -187,18 +187,18 @@ The location of nginx configs is dependent on the distro
 
 === "Alpine"
     ```
-    cp /opt/akkoma/installation/nginx/akkoma.nginx /etc/nginx/conf.d/akkoma.conf
+    cp /opt/akkoma/installation/akkoma.nginx /etc/nginx/conf.d/akkoma.conf
     ```
 
 === "Debian/Ubuntu"
     ```
-    cp /opt/akkoma/installation/nginx/akkoma.nginx /etc/nginx/sites-available/akkoma.conf
+    cp /opt/akkoma/installation/akkoma.nginx /etc/nginx/sites-available/akkoma.conf
     ln -s /etc/nginx/sites-available/akkoma.conf /etc/nginx/sites-enabled/akkoma.conf
     ```
 
 If your distro does not have either of those you can append `include /etc/nginx/akkoma.conf` to the end of the http section in /etc/nginx/nginx.conf and
 ```sh
-cp /opt/akkoma/installation/nginx/akkoma.nginx /etc/nginx/akkoma.conf
+cp /opt/akkoma/installation/akkoma.nginx /etc/nginx/akkoma.conf
 ```
 
 #### Edit the nginx config

docs/docs/installation/otp_redhat_en.md

@@ -178,7 +178,7 @@ certbot certonly --standalone --preferred-challenges http -d yourinstance.tld
 #### Copy Akkoma nginx configuration to the nginx folder
 
 ```shell
-cp /opt/akkoma/installation/nginx/akkoma.nginx /etc/nginx/conf.d/akkoma.conf
+cp /opt/akkoma/installation/akkoma.nginx /etc/nginx/conf.d/akkoma.conf
 ```
 
 #### Edit the nginx config

installation/nginx/akkoma.nginx

@@ -75,9 +75,48 @@ server {
     proxy_set_header Host $http_host;
     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
 
+    location ~ ^/(media|proxy) {
+        return 404;
+    }
+
     location / {
         proxy_pass http://phoenix;
     }
+}
+
+# Upload and MediaProxy Subdomain
+# (see main domain setup for more details)
+server {
+    server_name    media.example.tld;
+
+    listen         80;
+    listen         [::]:80;
+
+    location / {
+      return         301 https://$server_name$request_uri;
+    }
+}
+
+server {
+    server_name media.example.tld;
+
+    listen 443 ssl http2;
+    listen [::]:443 ssl http2;
+
+    ssl_trusted_certificate   /etc/letsencrypt/live/media.example.tld/chain.pem;
+    ssl_certificate           /etc/letsencrypt/live/media.example.tld/fullchain.pem;
+    ssl_certificate_key       /etc/letsencrypt/live/media.example.tld/privkey.pem;
+    # .. copy all other the ssl_* and gzip_* stuff from main domain
+
+    # the nginx default is 1m, not enough for large media uploads
+    client_max_body_size 16m;
+    ignore_invalid_headers off;
+
+    proxy_http_version 1.1;
+    proxy_set_header Upgrade $http_upgrade;
+    proxy_set_header Connection "upgrade";
+    proxy_set_header Host $http_host;
+    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
 
     location ~ ^/(media|proxy) {
         proxy_cache        akkoma_media_cache;
@@ -91,4 +130,8 @@ server {
         chunked_transfer_encoding on;
         proxy_pass         http://phoenix;
     }
+
+    location / {
+        return 404;
+    }
 }

lib/mix/tasks/pleroma/emoji.ex

@@ -130,6 +130,7 @@ def run(["get-packs" | args]) do
         }
 
         File.write!(Path.join(pack_path, "pack.json"), Jason.encode!(pack_json, pretty: true))
+        Pleroma.Emoji.reload()
       else
         IO.puts(IO.ANSI.format([:bright, :red, "No pack named \"#{pack_name}\" found"]))
       end
@@ -235,6 +236,8 @@ def run(["gen-pack" | args]) do
 
       IO.puts("#{pack_file} has been created with the #{name} pack")
     end
+
+    Pleroma.Emoji.reload()
   end
 
   def run(["reload"]) do

lib/mix/tasks/pleroma/instance.ex

@@ -20,6 +20,7 @@ def run(["gen" | rest]) do
           output: :string,
           output_psql: :string,
           domain: :string,
+          media_url: :string,
           instance_name: :string,
           admin_email: :string,
           notify_email: :string,
@@ -35,8 +36,7 @@ def run(["gen" | rest]) do
           listen_ip: :string,
           listen_port: :string,
           strip_uploads: :string,
-          anonymize_uploads: :string,
+          anonymize_uploads: :string
-          dedupe_uploads: :string
         ],
         aliases: [
           o: :output,
@@ -64,6 +64,14 @@ def run(["gen" | rest]) do
           ":"
         ) ++ [443]
 
+      media_url =
+        get_option(
+          options,
+          :media_url,
+          "What base url will uploads use? (e.g https://media.example.com/media)\n" <>
+            "  Generally this should NOT use the same domain as the instance       "
+        )
+
       name =
         get_option(
           options,
@@ -186,14 +194,6 @@ def run(["gen" | rest]) do
           "n"
         ) === "y"
 
-      dedupe_uploads =
-        get_option(
-          options,
-          :dedupe_uploads,
-          "Do you want to deduplicate uploaded files? (y/n)",
-          "n"
-        ) === "y"
-
       Config.put([:instance, :static_dir], static_dir)
 
       secret = :crypto.strong_rand_bytes(64) |> Base.encode64() |> binary_part(0, 64)
@@ -207,6 +207,7 @@ def run(["gen" | rest]) do
         EEx.eval_file(
           template_dir <> "/sample_config.eex",
           domain: domain,
+          media_url: media_url,
           port: port,
           email: email,
           notify_email: notify_email,
@@ -230,8 +231,7 @@ def run(["gen" | rest]) do
           upload_filters:
             upload_filters(%{
               strip: strip_uploads,
-              anonymize: anonymize_uploads,
+              anonymize: anonymize_uploads
-              dedupe: dedupe_uploads
             })
         )
 
@@ -319,13 +319,6 @@ defp upload_filters(filters) when is_map(filters) do
         enabled_filters
       end
 
-    enabled_filters =
-      if filters.dedupe do
-        enabled_filters ++ [Pleroma.Upload.Filter.Dedupe]
-      else
-        enabled_filters
-      end
-
     enabled_filters
   end
 end

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

@@ -30,12 +30,12 @@ def run(["index"]) do
       meili_put(
         "/indexes/objects/settings/ranking-rules",
         [
-          "published:desc",
           "words",
-          "exactness",
           "proximity",
           "typo",
+          "exactness",
           "attribute",
+          "published:desc",
           "sort"
         ]
       )

lib/mix/tasks/pleroma/security.ex

@@ -0,0 +1,330 @@
+# Akkoma: Magically expressive social media
+# Copyright © 2024 Akkoma Authors <https://akkoma.dev/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Mix.Tasks.Pleroma.Security do
+  use Mix.Task
+  import Ecto.Query
+  import Mix.Pleroma
+
+  alias Pleroma.Config
+
+  require Logger
+
+  @shortdoc """
+  Security-related tasks, like e.g. checking for signs past exploits were abused.
+  """
+
+  # Constants etc
+  defp local_id_prefix(), do: Pleroma.Web.Endpoint.url() <> "/"
+
+  defp local_id_pattern(), do: local_id_prefix() <> "%"
+
+  @activity_exts ["activity+json", "activity%2Bjson"]
+
+  defp activity_ext_url_patterns() do
+    for e <- @activity_exts do
+      for suf <- ["", "?%"] do
+        # Escape literal % for use in SQL patterns
+        ee = String.replace(e, "%", "\\%")
+        "%.#{ee}#{suf}"
+      end
+    end
+    |> List.flatten()
+  end
+
+  # Search for malicious uploads exploiting the lack of Content-Type sanitisation from before 2024-03
+  def run(["spoof-uploaded"]) do
+    Logger.put_process_level(self(), :notice)
+    start_pleroma()
+
+    IO.puts("""
+    +------------------------+
+    |  SPOOF SEARCH UPLOADS  |
+    +------------------------+
+    Checking if any uploads are using privileged types.
+    NOTE if attachment deletion is enabled, payloads used
+         in the past may no longer exist.
+    """)
+
+    do_spoof_uploaded()
+  end
+
+  # Fuzzy search for potentially counterfeit activities in the database resulting from the same exploit
+  def run(["spoof-inserted"]) do
+    Logger.put_process_level(self(), :notice)
+    start_pleroma()
+
+    IO.puts("""
+    +----------------------+
+    |  SPOOF SEARCH NOTES  |
+    +----------------------+
+    Starting fuzzy search for counterfeit activities.
+    NOTE this can not guarantee detecting all counterfeits
+         and may yield a small percentage of false positives.
+    """)
+
+    do_spoof_inserted()
+  end
+
+  # +-----------------------------+
+  # | S P O O F - U P L O A D E D |
+  # +-----------------------------+
+  defp do_spoof_uploaded() do
+    files =
+      case Config.get!([Pleroma.Upload, :uploader]) do
+        Pleroma.Uploaders.Local ->
+          uploads_search_spoofs_local_dir(Config.get!([Pleroma.Uploaders.Local, :uploads]))
+
+        _ ->
+          IO.puts("""
+          NOTE:
+            Not using local uploader; thus not affected by this exploit.
+            It's impossible to check for files, but in case local uploader was used before
+            or to check if anyone futilely attempted a spoof, notes will still be scanned.
+          """)
+
+          []
+      end
+
+    emoji = uploads_search_spoofs_local_dir(Config.get!([:instance, :static_dir]))
+
+    post_attachs = uploads_search_spoofs_notes()
+
+    not_orphaned_urls =
+      post_attachs
+      |> Enum.map(fn {_u, _a, url} -> url end)
+      |> MapSet.new()
+
+    orphaned_attachs = upload_search_orphaned_attachments(not_orphaned_urls)
+
+    IO.puts("\nSearch concluded; here are the results:")
+    pretty_print_list_with_title(emoji, "Emoji")
+    pretty_print_list_with_title(files, "Uploaded Files")
+    pretty_print_list_with_title(post_attachs, "(Not Deleted) Post Attachments")
+    pretty_print_list_with_title(orphaned_attachs, "Orphaned Uploads")
+
+    IO.puts("""
+    In total found
+      #{length(emoji)} emoji
+      #{length(files)} uploads
+      #{length(post_attachs)} not deleted posts
+      #{length(orphaned_attachs)} orphaned attachments
+    """)
+  end
+
+  defp uploads_search_spoofs_local_dir(dir) do
+    local_dir = String.replace_suffix(dir, "/", "")
+
+    IO.puts("Searching for suspicious files in #{local_dir}...")
+
+    glob_ext = "{" <> Enum.join(@activity_exts, ",") <> "}"
+
+    Path.wildcard(local_dir <> "/**/*." <> glob_ext, match_dot: true)
+    |> Enum.map(fn path ->
+      String.replace_prefix(path, local_dir <> "/", "")
+    end)
+    |> Enum.sort()
+  end
+
+  defp uploads_search_spoofs_notes() do
+    IO.puts("Now querying DB for posts with spoofing attachments. This might take a while...")
+
+    patterns = [local_id_pattern() | activity_ext_url_patterns()]
+
+    # if jsonb_array_elemsts in FROM can be used with normal Ecto functions, idk how
+    """
+    SELECT DISTINCT a.data->>'actor', a.id, url->>'href'
+    FROM public.objects AS o JOIN public.activities AS a
+         ON o.data->>'id' = a.data->>'object',
+       jsonb_array_elements(o.data->'attachment') AS attachs,
+       jsonb_array_elements(attachs->'url') AS url
+    WHERE o.data->>'type' = 'Note' AND
+          o.data->>'id' LIKE $1::text AND (
+            url->>'href' LIKE $2::text OR
+            url->>'href' LIKE $3::text OR
+            url->>'href' LIKE $4::text OR
+            url->>'href' LIKE $5::text
+          )
+    ORDER BY a.data->>'actor', a.id, url->>'href';
+    """
+    |> Pleroma.Repo.query!(patterns, timeout: :infinity)
+    |> map_raw_id_apid_tuple()
+  end
+
+  defp upload_search_orphaned_attachments(not_orphaned_urls) do
+    IO.puts("""
+    Now querying DB for orphaned spoofing attachment (i.e. their post was deleted,
+    but if :cleanup_attachments was not enabled traces remain in the database)
+    This might take a bit...
+    """)
+
+    patterns = activity_ext_url_patterns()
+
+    """
+    SELECT DISTINCT attach.id, url->>'href'
+    FROM public.objects AS attach,
+         jsonb_array_elements(attach.data->'url') AS url
+    WHERE (attach.data->>'type' = 'Image' OR
+           attach.data->>'type' = 'Document')
+          AND (
+            url->>'href' LIKE $1::text OR
+            url->>'href' LIKE $2::text OR
+            url->>'href' LIKE $3::text OR
+            url->>'href' LIKE $4::text
+          )
+    ORDER BY attach.id, url->>'href';
+    """
+    |> Pleroma.Repo.query!(patterns, timeout: :infinity)
+    |> then(fn res -> Enum.map(res.rows, fn [id, url] -> {id, url} end) end)
+    |> Enum.filter(fn {_, url} -> !(url in not_orphaned_urls) end)
+  end
+
+  # +-----------------------------+
+  # | S P O O F - I N S E R T E D |
+  # +-----------------------------+
+  defp do_spoof_inserted() do
+    IO.puts("""
+    Searching for local posts whose Create activity has no ActivityPub id...
+      This is a pretty good indicator, but only for spoofs of local actors
+      and only if the spoofing happened after around late 2021.
+    """)
+
+    idless_create =
+      search_local_notes_without_create_id()
+      |> Enum.sort()
+
+    IO.puts("Done.\n")
+
+    IO.puts("""
+    Now trying to weed out other poorly hidden spoofs.
+    This can't detect all and may have some false positives.
+    """)
+
+    likely_spoofed_posts_set = MapSet.new(idless_create)
+
+    sus_pattern_posts =
+      search_sus_notes_by_id_patterns()
+      |> Enum.filter(fn r -> !(r in likely_spoofed_posts_set) end)
+
+    IO.puts("Done.\n")
+
+    IO.puts("""
+    Finally, searching for spoofed, local user accounts.
+    (It's impossible to detect spoofed remote users)
+    """)
+
+    spoofed_users = search_bogus_local_users()
+
+    pretty_print_list_with_title(sus_pattern_posts, "Maybe Spoofed Posts")
+    pretty_print_list_with_title(idless_create, "Likely Spoofed Posts")
+    pretty_print_list_with_title(spoofed_users, "Spoofed local user accounts")
+
+    IO.puts("""
+    In total found:
+      #{length(spoofed_users)} bogus users
+      #{length(idless_create)} likely spoofed posts
+      #{length(sus_pattern_posts)} maybe spoofed posts
+    """)
+  end
+
+  defp search_local_notes_without_create_id() do
+    Pleroma.Object
+    |> where([o], fragment("?->>'id' LIKE ?", o.data, ^local_id_pattern()))
+    |> join(:inner, [o], a in Pleroma.Activity,
+      on: fragment("?->>'object' = ?->>'id'", a.data, o.data)
+    )
+    |> where([o, a], fragment("NOT (? \\? 'id') OR ?->>'id' IS NULL", a.data, a.data))
+    |> select([o, a], {a.id, fragment("?->>'id'", o.data)})
+    |> order_by([o, a], a.id)
+    |> Pleroma.Repo.all(timeout: :infinity)
+  end
+
+  defp search_sus_notes_by_id_patterns() do
+    [ep1, ep2, ep3, ep4] = activity_ext_url_patterns()
+
+    Pleroma.Object
+    |> where(
+      [o],
+      # for local objects we know exactly how a genuine id looks like
+      # (though a thorough attacker can emulate this)
+      # for remote posts, use some best-effort patterns
+      fragment(
+        """
+         (?->>'id' LIKE ? AND ?->>'id' NOT SIMILAR TO
+          ? || 'objects/[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}')
+        """,
+        o.data,
+        ^local_id_pattern(),
+        o.data,
+        ^local_id_prefix()
+      ) or
+        fragment("?->>'id' LIKE ?", o.data, "%/emoji/%") or
+        fragment("?->>'id' LIKE ?", o.data, "%/media/%") or
+        fragment("?->>'id' LIKE ?", o.data, "%/proxy/%") or
+        fragment("?->>'id' LIKE ?", o.data, ^ep1) or
+        fragment("?->>'id' LIKE ?", o.data, ^ep2) or
+        fragment("?->>'id' LIKE ?", o.data, ^ep3) or
+        fragment("?->>'id' LIKE ?", o.data, ^ep4)
+    )
+    |> join(:inner, [o], a in Pleroma.Activity,
+      on: fragment("?->>'object' = ?->>'id'", a.data, o.data)
+    )
+    |> select([o, a], {a.id, fragment("?->>'id'", o.data)})
+    |> order_by([o, a], a.id)
+    |> Pleroma.Repo.all(timeout: :infinity)
+  end
+
+  defp search_bogus_local_users() do
+    Pleroma.User.Query.build(%{})
+    |> where([u], u.local == false and like(u.ap_id, ^local_id_pattern()))
+    |> order_by([u], u.ap_id)
+    |> select([u], u.ap_id)
+    |> Pleroma.Repo.all(timeout: :infinity)
+  end
+
+  # +-----------------------------------+
+  # | module-specific utility functions |
+  # +-----------------------------------+
+  defp pretty_print_list_with_title(list, title) do
+    title_len = String.length(title)
+    title_underline = String.duplicate("=", title_len)
+    IO.puts(title)
+    IO.puts(title_underline)
+    pretty_print_list(list)
+  end
+
+  defp pretty_print_list([]), do: IO.puts("")
+
+  defp pretty_print_list([{a, o} | rest])
+       when (is_binary(a) or is_number(a)) and is_binary(o) do
+    IO.puts("  {#{a}, #{o}}")
+    pretty_print_list(rest)
+  end
+
+  defp pretty_print_list([{u, a, o} | rest])
+       when is_binary(a) and is_binary(u) and is_binary(o) do
+    IO.puts("  {#{u}, #{a}, #{o}}")
+    pretty_print_list(rest)
+  end
+
+  defp pretty_print_list([e | rest]) when is_binary(e) do
+    IO.puts("  #{e}")
+    pretty_print_list(rest)
+  end
+
+  defp pretty_print_list([e | rest]), do: pretty_print_list([inspect(e) | rest])
+
+  defp map_raw_id_apid_tuple(res) do
+    user_prefix = local_id_prefix() <> "users/"
+
+    Enum.map(res.rows, fn
+      [uid, aid, oid] ->
+        {
+          String.replace_prefix(uid, user_prefix, ""),
+          FlakeId.to_string(aid),
+          oid
+        }
+    end)
+  end
+end

lib/mix/tasks/pleroma/user.ex

@@ -11,6 +11,7 @@ defmodule Mix.Tasks.Pleroma.User do
   alias Pleroma.UserInviteToken
   alias Pleroma.Web.ActivityPub.Builder
   alias Pleroma.Web.ActivityPub.Pipeline
+  use Pleroma.Web, :verified_routes
 
   @shortdoc "Manages Pleroma users"
   @moduledoc File.read!("docs/docs/administration/CLI_tasks/user.md")
@@ -113,11 +114,7 @@ def run(["reset_password", nickname]) do
          {:ok, token} <- Pleroma.PasswordResetToken.create_token(user) do
       shell_info("Generated password reset token for #{user.nickname}")
 
-      IO.puts(
+      IO.puts("URL: #{~p[/api/v1/pleroma/password_reset/#{token.token}]}")
-        "URL: #{Pleroma.Web.Router.Helpers.reset_password_url(Pleroma.Web.Endpoint,
-        :reset,
-        token.token)}"
-      )
     else
       _ ->
         shell_error("No local user #{nickname}")
@@ -303,13 +300,7 @@ def run(["invite" | rest]) do
          {:ok, invite} <- UserInviteToken.create_invite(options) do
       shell_info("Generated user invite token " <> String.replace(invite.invite_type, "_", " "))
 
-      url =
+      url = url(~p[/registration/#{invite.token}])
-        Pleroma.Web.Router.Helpers.redirect_url(
-          Pleroma.Web.Endpoint,
-          :registration_page,
-          invite.token
-        )
-
       IO.puts(url)
     else
       error ->

lib/phoenix/transports/web_socket/raw.ex

@@ -26,7 +26,6 @@ def init(%Plug.Conn{method: "GET"} = conn, {endpoint, handler, transport}) do
       conn
       |> fetch_query_params
       |> Transport.transport_log(opts[:transport_log])
-      |> Transport.force_ssl(handler, endpoint, opts)
       |> Transport.check_origin(handler, endpoint, opts)
 
     case conn do

lib/pleroma/activity/pruner.ex

@@ -26,6 +26,15 @@ def prune_undos do
     |> Repo.delete_all(timeout: :infinity)
   end
 
+  def prune_updates do
+    before_time = cutoff()
+
+    from(a in Activity,
+      where: fragment("?->>'type' = ?", a.data, "Update") and a.inserted_at < ^before_time
+    )
+    |> Repo.delete_all(timeout: :infinity)
+  end
+
   def prune_removes do
     before_time = cutoff()
 

lib/pleroma/config/release_runtime_provider.ex

@@ -23,7 +23,7 @@ def load(config, opts) do
     with_runtime_config =
       if File.exists?(config_path) do
         # <https://git.pleroma.social/pleroma/pleroma/-/issues/3135>
-        %File.Stat{mode: mode} = File.lstat!(config_path)
+        %File.Stat{mode: mode} = File.stat!(config_path)
 
         if Bitwise.band(mode, 0o007) > 0 do
           raise "Configuration at #{config_path} has world-permissions, execute the following: chmod o= #{config_path}"

lib/pleroma/emails/admin_email.ex

@@ -6,10 +6,13 @@ defmodule Pleroma.Emails.AdminEmail do
   @moduledoc "Admin emails"
 
   import Swoosh.Email
-
+  use Pleroma.Web, :mailer
   alias Pleroma.Config
   alias Pleroma.HTML
-  alias Pleroma.Web.Router.Helpers
+
+  use Phoenix.VerifiedRoutes,
+    endpoint: Pleroma.Web.Endpoint,
+    router: Pleroma.Web.Router
 
   defp instance_config, do: Config.get(:instance)
   defp instance_name, do: instance_config()[:name]
@@ -45,7 +48,7 @@ def report(to, reporter, account, statuses, comment) do
           statuses
           |> Enum.map(fn
             %{id: id} ->
-              status_url = Helpers.o_status_url(Pleroma.Web.Endpoint, :notice, id)
+              status_url = url(~p[/notice/#{id}])
               "<li><a href=\"#{status_url}\">#{status_url}</li>"
 
             %{"id" => id} when is_binary(id) ->

lib/pleroma/emails/mailer.ex

@@ -55,12 +55,61 @@ def deliver!(email, config) do
 
   @doc false
   def validate_dependency do
-    parse_config([])
+    parse_config([], defaults: false)
     |> Keyword.get(:adapter)
     |> Swoosh.Mailer.validate_dependency()
   end
 
-  defp parse_config(config) do
+  defp ensure_charlist(input) do
-    Swoosh.Mailer.parse_config(@otp_app, __MODULE__, @mailer_config, config)
+    case input do
+      i when is_binary(i) -> String.to_charlist(input)
+      i when is_list(i) -> i
+    end
+  end
+
+  defp default_config(adapter, conf, opts)
+
+  defp default_config(_, _, defaults: false) do
+    []
+  end
+
+  defp default_config(Swoosh.Adapters.SMTP, conf, _) do
+    # gen_smtp and Erlang's tls defaults are very barebones, if nothing is set.
+    # Add sane defaults for our usecase to make config less painful for admins
+    relay = ensure_charlist(Keyword.get(conf, :relay))
+    ssl_disabled = Keyword.get(conf, :ssl) === false
+    os_cacerts = :public_key.cacerts_get()
+
+    common_tls_opts = [
+      cacerts: os_cacerts,
+      versions: [:"tlsv1.2", :"tlsv1.3"],
+      verify: :verify_peer,
+      # some versions have supposedly issues verifying wildcard certs without this
+      server_name_indication: relay,
+      # the default of 10 is too restrictive
+      depth: 32
+    ]
+
+    [
+      auth: :always,
+      no_mx_lookups: false,
+      # Direct SSL/TLS
+      # (if ssl was explicitly disabled, we must not pass TLS options to the socket)
+      ssl: true,
+      sockopts: if(ssl_disabled, do: [], else: common_tls_opts),
+      # STARTTLS upgrade (can't be set to :always when already using direct TLS)
+      tls: :if_available,
+      tls_options: common_tls_opts
+    ]
+  end
+
+  defp default_config(_, _, _), do: []
+
+  defp parse_config(config, opts \\ []) do
+    conf = Swoosh.Mailer.parse_config(@otp_app, __MODULE__, @mailer_config, config)
+    adapter = Keyword.get(conf, :adapter)
+
+    default_config(adapter, conf, opts)
+    |> Keyword.merge(conf)
   end
 end

lib/pleroma/emails/user_email.ex

@@ -6,12 +6,11 @@ defmodule Pleroma.Emails.UserEmail do
   @moduledoc "User emails"
 
   require Pleroma.Web.Gettext
+  use Pleroma.Web, :mailer
 
   alias Pleroma.Config
   alias Pleroma.User
-  alias Pleroma.Web.Endpoint
   alias Pleroma.Web.Gettext
-  alias Pleroma.Web.Router
 
   import Swoosh.Email
   import Phoenix.Swoosh, except: [render_body: 3]
@@ -75,7 +74,7 @@ def welcome(user, opts \\ %{}) do
 
   def password_reset_email(user, token) when is_binary(token) do
     Gettext.with_locale_or_default user.language do
-      password_reset_url = Router.Helpers.reset_password_url(Endpoint, :reset, token)
+      password_reset_url = url(~p[/api/v1/pleroma/password_reset/#{token}])
 
       html_body =
         Gettext.dpgettext(
@@ -108,12 +107,7 @@ def user_invitation_email(
         to_name \\ nil
       ) do
     Gettext.with_locale_or_default user.language do
-      registration_url =
+      registration_url = url(~p[/registration/#{user_invite_token.token}])
-        Router.Helpers.redirect_url(
-          Endpoint,
-          :registration_page,
-          user_invite_token.token
-        )
 
       html_body =
         Gettext.dpgettext(
@@ -146,13 +140,7 @@ def user_invitation_email(
 
   def account_confirmation_email(user) do
     Gettext.with_locale_or_default user.language do
-      confirmation_url =
+      confirmation_url = url(~p[/api/account/confirm_email/#{user.id}/#{user.confirmation_token}])
-        Router.Helpers.confirm_email_url(
-          Endpoint,
-          :confirm_email,
-          user.id,
-          to_string(user.confirmation_token)
-        )
 
       html_body =
         Gettext.dpgettext(
@@ -342,7 +330,7 @@ def unsubscribe_url(user, notifications_type) do
       |> Pleroma.JWT.generate_and_sign!()
       |> Base.encode64()
 
-    Router.Helpers.subscription_url(Endpoint, :unsubscribe, token)
+    url(~p[/mailer/unsubscribe/#{token}])
   end
 
   def backup_is_ready_email(backup, admin_user_id \\ nil) do

lib/pleroma/emoji/pack.ex

@@ -26,12 +26,37 @@ defmodule Pleroma.Emoji.Pack do
   alias Pleroma.Emoji.Pack
   alias Pleroma.Utils
 
+  # Invalid/Malicious names are supposed to be filtered out before path joining,
+  # but there are many entrypoints to affected functions so as the code changes
+  # we might accidentally let an unsanitised name slip through.
+  # To make sure, use the below which crash the process otherwise.
+
+  # ALWAYS use this when constructing paths from external name!
+  # (name meaning it must be only a single path component)
+  defp path_join_name_safe(dir, name) do
+    if to_string(name) != Path.basename(name) or name in ["..", ".", ""] do
+      raise "Invalid or malicious pack name: #{name}"
+    else
+      Path.join(dir, name)
+    end
+  end
+
+  # ALWAYS use this to join external paths
+  # (which are allowed to have several components)
+  defp path_join_safe(dir, path) do
+    {:ok, safe_path} = Path.safe_relative(path)
+    Path.join(dir, safe_path)
+  end
+
   @spec create(String.t()) :: {:ok, t()} | {:error, File.posix()} | {:error, :empty_values}
   def create(name) do
     with :ok <- validate_not_empty([name]),
-         dir <- Path.join(emoji_path(), name),
+         dir <- path_join_name_safe(emoji_path(), name),
          :ok <- File.mkdir(dir) do
-      save_pack(%__MODULE__{pack_file: Path.join(dir, "pack.json")})
+      save_pack(%__MODULE__{
+        path: dir,
+        pack_file: Path.join(dir, "pack.json")
+      })
     end
   end
 
@@ -65,7 +90,7 @@ def show(opts) do
           {:ok, [binary()]} | {:error, File.posix(), binary()} | {:error, :empty_values}
   def delete(name) do
     with :ok <- validate_not_empty([name]),
-         pack_path <- Path.join(emoji_path(), name) do
+         pack_path <- path_join_name_safe(emoji_path(), name) do
       File.rm_rf(pack_path)
     end
   end
@@ -89,7 +114,7 @@ defp unpack_zip_emojies(zip_files) do
     end)
   end
 
-  @spec add_file(t(), String.t(), Path.t(), Plug.Upload.t()) ::
+  @spec add_file(t(), String.t(), Path.t(), Plug.Upload.t() | binary()) ::
           {:ok, t()}
           | {:error, File.posix() | atom()}
   def add_file(%Pack{} = pack, _, _, %Plug.Upload{content_type: "application/zip"} = file) do
@@ -107,7 +132,7 @@ def add_file(%Pack{} = pack, _, _, %Plug.Upload{content_type: "application/zip"}
           Enum.map_reduce(emojies, pack, fn item, emoji_pack ->
             emoji_file = %Plug.Upload{
               filename: item[:filename],
-              path: Path.join(tmp_dir, item[:path])
+              path: path_join_safe(tmp_dir, item[:path])
             }
 
             {:ok, updated_pack} =
@@ -137,6 +162,14 @@ def add_file(%Pack{} = pack, _, _, %Plug.Upload{content_type: "application/zip"}
   end
 
   def add_file(%Pack{} = pack, shortcode, filename, %Plug.Upload{} = file) do
+    try_add_file(pack, shortcode, filename, file)
+  end
+
+  def add_file(%Pack{} = pack, shortcode, filename, filedata) when is_binary(filedata) do
+    try_add_file(pack, shortcode, filename, filedata)
+  end
+
+  defp try_add_file(%Pack{} = pack, shortcode, filename, file) do
     with :ok <- validate_not_empty([shortcode, filename]),
          :ok <- validate_emoji_not_exists(shortcode),
          {:ok, updated_pack} <- do_add_file(pack, shortcode, filename, file) do
@@ -189,6 +222,7 @@ def import_from_filesystem do
          {:ok, results} <- File.ls(emoji_path) do
       names =
         results
+        # items come from File.ls, thus safe
         |> Enum.map(&Path.join(emoji_path, &1))
         |> Enum.reject(fn path ->
           File.dir?(path) and File.exists?(Path.join(path, "pack.json"))
@@ -287,8 +321,8 @@ def update_metadata(name, data) do
 
   @spec load_pack(String.t()) :: {:ok, t()} | {:error, :file.posix()}
   def load_pack(name) do
-    name = Path.basename(name)
+    pack_dir = path_join_name_safe(emoji_path(), name)
-    pack_file = Path.join([emoji_path(), name, "pack.json"])
+    pack_file = Path.join(pack_dir, "pack.json")
 
     with {:ok, _} <- File.stat(pack_file),
          {:ok, pack_data} <- File.read(pack_file) do
@@ -412,7 +446,13 @@ defp downloadable?(pack) do
   end
 
   defp create_archive_and_cache(pack, hash) do
-    files = [~c"pack.json" | Enum.map(pack.files, fn {_, file} -> to_charlist(file) end)]
+    files = [
+      ~c"pack.json"
+      | Enum.map(pack.files, fn {_, file} ->
+          {:ok, file} = Path.safe_relative(file)
+          to_charlist(file)
+        end)
+    ]
 
     {:ok, {_, result}} =
       :zip.zip(~c"#{pack.name}.zip", files, [:memory, cwd: to_charlist(pack.path)])
@@ -474,7 +514,7 @@ defp validate_not_empty(list) do
   end
 
   defp save_file(%Plug.Upload{path: upload_path}, pack, filename) do
-    file_path = Path.join(pack.path, filename)
+    file_path = path_join_safe(pack.path, filename)
     create_subdirs(file_path)
 
     with {:ok, _} <- File.copy(upload_path, file_path) do
@@ -482,6 +522,12 @@ defp save_file(%Plug.Upload{path: upload_path}, pack, filename) do
     end
   end
 
+  defp save_file(file_data, pack, filename) when is_binary(file_data) do
+    file_path = path_join_safe(pack.path, filename)
+    create_subdirs(file_path)
+    File.write(file_path, file_data, [:binary])
+  end
+
   defp put_emoji(pack, shortcode, filename) do
     files = Map.put(pack.files, shortcode, filename)
     %{pack | files: files, files_count: length(Map.keys(files))}
@@ -493,8 +539,8 @@ defp delete_emoji(pack, shortcode) do
   end
 
   defp rename_file(pack, filename, new_filename) do
-    old_path = Path.join(pack.path, filename)
+    old_path = path_join_safe(pack.path, filename)
-    new_path = Path.join(pack.path, new_filename)
+    new_path = path_join_safe(pack.path, new_filename)
     create_subdirs(new_path)
 
     with :ok <- File.rename(old_path, new_path) do
@@ -512,7 +558,7 @@ defp create_subdirs(file_path) do
 
   defp remove_file(pack, shortcode) do
     with {:ok, filename} <- get_filename(pack, shortcode),
-         emoji <- Path.join(pack.path, filename),
+         emoji <- path_join_safe(pack.path, filename),
          :ok <- File.rm(emoji) do
       remove_dir_if_empty(emoji, filename)
     end
@@ -530,7 +576,7 @@ defp remove_dir_if_empty(emoji, filename) do
 
   defp get_filename(pack, shortcode) do
     with %{^shortcode => filename} when is_binary(filename) <- pack.files,
-         file_path <- Path.join(pack.path, filename),
+         file_path <- path_join_safe(pack.path, filename),
          {:ok, _} <- File.stat(file_path) do
       {:ok, filename}
     else
@@ -568,7 +614,7 @@ defp validate_downloadable(pack) do
   end
 
   defp copy_as(remote_pack, local_name) do
-    path = Path.join(emoji_path(), local_name)
+    path = path_join_name_safe(emoji_path(), local_name)
 
     %__MODULE__{
       name: local_name,

lib/pleroma/job_queue_monitor.ex

@@ -15,8 +15,19 @@ def start_link(_) do
 
   @impl true
   def init(state) do
-    :telemetry.attach("oban-monitor-failure", [:oban, :job, :exception], &handle_event/4, nil)
+    :telemetry.attach(
-    :telemetry.attach("oban-monitor-success", [:oban, :job, :stop], &handle_event/4, nil)
+      "oban-monitor-failure",
+      [:oban, :job, :exception],
+      &Pleroma.JobQueueMonitor.handle_event/4,
+      nil
+    )
+
+    :telemetry.attach(
+      "oban-monitor-success",
+      [:oban, :job, :stop],
+      &Pleroma.JobQueueMonitor.handle_event/4,
+      nil
+    )
 
     {:ok, state}
   end

lib/pleroma/object/containment.ex

@@ -11,6 +11,9 @@ defmodule Pleroma.Object.Containment do
   Object containment is an important step in validating remote objects to prevent
   spoofing, therefore removal of object containment functions is NOT recommended.
   """
+
+  alias Pleroma.Web.ActivityPub.Transmogrifier
+
   def get_actor(%{"actor" => actor}) when is_binary(actor) do
     actor
   end
@@ -47,6 +50,31 @@ def get_object(_) do
   defp compare_uris(%URI{host: host} = _id_uri, %URI{host: host} = _other_uri), do: :ok
   defp compare_uris(_id_uri, _other_uri), do: :error
 
+  defp compare_uris_exact(uri, uri), do: :ok
+
+  defp compare_uris_exact(%URI{} = id, %URI{} = other),
+    do: compare_uris_exact(URI.to_string(id), URI.to_string(other))
+
+  defp compare_uris_exact(id_uri, other_uri)
+       when is_binary(id_uri) and is_binary(other_uri) do
+    norm_id = String.replace_suffix(id_uri, "/", "")
+    norm_other = String.replace_suffix(other_uri, "/", "")
+    if norm_id == norm_other, do: :ok, else: :error
+  end
+
+  @doc """
+  Checks whether an URL to fetch from is from the local server.
+
+  We never want to fetch from ourselves; if it’s not in the database
+  it can’t be authentic and must be a counterfeit.
+  """
+  def contain_local_fetch(id) do
+    case compare_uris(URI.parse(id), Pleroma.Web.Endpoint.struct_url()) do
+      :ok -> :error
+      _ -> :ok
+    end
+  end
+
   @doc """
   Checks that an imported AP object's actor matches the host it came from.
   """
@@ -62,8 +90,31 @@ def contain_origin(id, %{"actor" => _actor} = params) do
   def contain_origin(id, %{"attributedTo" => actor} = params),
     do: contain_origin(id, Map.put(params, "actor", actor))
 
-  def contain_origin(_id, _data), do: :error
+  def contain_origin(_id, _data), do: :ok
 
+  @doc """
+  Check whether the fetch URL (after redirects) exactly (sans tralining slash) matches either
+  the canonical ActivityPub id or the objects url field (for display URLs from *key and Mastodon)
+
+  Since this is meant to be used for fetches, anonymous or transient objects are not accepted here.
+  """
+  def contain_id_to_fetch(url, %{"id" => id} = data) when is_binary(id) do
+    with {:id, :error} <- {:id, compare_uris_exact(id, url)},
+         # "url" can be a "Link" object and this is checked before full normalisation
+         display_url <- Transmogrifier.fix_url(data)["url"],
+         true <- display_url != nil do
+      compare_uris_exact(display_url, url)
+    else
+      {:id, :ok} -> :ok
+      _ -> :error
+    end
+  end
+
+  def contain_id_to_fetch(_url, _data), do: :error
+
+  @doc """
+  Check whether the object id is from the same host as another id
+  """
   def contain_origin_from_id(id, %{"id" => other_id} = _params) when is_binary(other_id) do
     id_uri = URI.parse(id)
     other_uri = URI.parse(other_id)
@@ -85,4 +136,12 @@ def contain_child(%{"object" => %{"id" => id, "attributedTo" => _} = object}),
     do: contain_origin(id, object)
 
   def contain_child(_), do: :ok
+
+  @doc "Checks whether two URIs belong to the same domain"
+  def same_origin(id1, id2) do
+    uri1 = URI.parse(id1)
+    uri2 = URI.parse(id2)
+
+    compare_uris(uri1, uri2)
+  end
 end

lib/pleroma/object/fetcher.ex

@@ -18,6 +18,16 @@ defmodule Pleroma.Object.Fetcher do
   require Logger
   require Pleroma.Constants
 
+  @moduledoc """
+  This module deals with correctly fetching Acitivity Pub objects in a safe way.
+
+  The core function is `fetch_and_contain_remote_object_from_id/1` which performs
+  the actual fetch and common safety and authenticity checks. Other `fetch_*`
+  function use the former and perform some additional tasks
+  """
+
+  @mix_env Mix.env()
+
   defp touch_changeset(changeset) do
     updated_at =
       NaiveDateTime.utc_now()
@@ -103,18 +113,26 @@ defp reinject_object(%Object{} = object, new_data) do
     end
   end
 
+  @doc "Assumes object already is in our database and refetches from remote to update (e.g. for polls)"
   def refetch_object(%Object{data: %{"id" => id}} = object) do
     with {:local, false} <- {:local, Object.local?(object)},
          {:ok, new_data} <- fetch_and_contain_remote_object_from_id(id),
+         {:id, true} <- {:id, new_data["id"] == id},
          {:ok, object} <- reinject_object(object, new_data) do
       {:ok, object}
     else
       {:local, true} -> {:ok, object}
+      {:id, false} -> {:error, "Object id changed on refetch"}
       e -> {:error, e}
     end
   end
 
-  # Note: will create a Create activity, which we need internally at the moment.
+  @doc """
+    Fetches a new object and puts it through the processing pipeline for inbound objects
+
+    Note: will also insert a fake Create activity, since atm we internally
+    need everything to be traced back to a Create activity.
+  """
   def fetch_object_from_id(id, options \\ []) do
     with %URI{} = uri <- URI.parse(id),
          # let's check the URI is even vaguely valid first
@@ -127,7 +145,6 @@ def fetch_object_from_id(id, options \\ []) do
          {_, {:ok, data}} <- {:fetch, fetch_and_contain_remote_object_from_id(id)},
          {_, nil} <- {:normalize, Object.normalize(data, fetch: false)},
          params <- prepare_activity_params(data),
-         {_, :ok} <- {:containment, Containment.contain_origin(id, params)},
          {_, {:ok, activity}} <-
            {:transmogrifier, Transmogrifier.handle_incoming(params, options)},
          {_, _data, %Object{} = object} <-
@@ -140,9 +157,6 @@ def fetch_object_from_id(id, options \\ []) do
       {:scheme, false} ->
         {:error, "URI Scheme Invalid"}
 
-      {:containment, _} ->
-        {:error, "Object containment failed."}
-
       {:transmogrifier, {:error, {:reject, e}}} ->
         {:reject, e}
 
@@ -185,6 +199,7 @@ defp prepare_activity_params(data) do
     |> Maps.put_if_present("bcc", data["bcc"])
   end
 
+  @doc "Identical to `fetch_object_from_id/2` but just directly returns the object or on error `nil`"
   def fetch_object_from_id!(id, options \\ []) do
     with {:ok, object} <- fetch_object_from_id(id, options) do
       object
@@ -235,6 +250,7 @@ defp maybe_date_fetch(headers, date) do
     end
   end
 
+  @doc "Fetches arbitrary remote object and performs basic safety and authenticity checks"
   def fetch_and_contain_remote_object_from_id(id)
 
   def fetch_and_contain_remote_object_from_id(%{"id" => id}),
@@ -244,18 +260,29 @@ def fetch_and_contain_remote_object_from_id(id) when is_binary(id) do
     Logger.debug("Fetching object #{id} via AP")
 
     with {:scheme, true} <- {:scheme, String.starts_with?(id, "http")},
-         {:ok, body} <- get_object(id),
+         {_, :ok} <- {:local_fetch, Containment.contain_local_fetch(id)},
+         {:ok, final_id, body} <- get_object(id),
          {:ok, data} <- safe_json_decode(body),
-         :ok <- Containment.contain_origin_from_id(id, data) do
+         {_, :ok} <- {:strict_id, Containment.contain_id_to_fetch(final_id, data)},
-      unless Instances.reachable?(id) do
+         {_, :ok} <- {:containment, Containment.contain_origin(final_id, data)} do
-        Instances.set_reachable(id)
+      unless Instances.reachable?(final_id) do
+        Instances.set_reachable(final_id)
       end
 
       {:ok, data}
     else
+      {:strict_id, _} ->
+        {:error, "Object's ActivityPub id/url does not match final fetch URL"}
+
       {:scheme, _} ->
         {:error, "Unsupported URI scheme"}
 
+      {:local_fetch, _} ->
+        {:error, "Trying to fetch local resource"}
+
+      {:containment, _} ->
+        {:error, "Object containment failed."}
+
       {:error, e} ->
         {:error, e}
 
@@ -267,6 +294,32 @@ def fetch_and_contain_remote_object_from_id(id) when is_binary(id) do
   def fetch_and_contain_remote_object_from_id(_id),
     do: {:error, "id must be a string"}
 
+  defp check_crossdomain_redirect(final_host, original_url)
+
+  # HOPEFULLY TEMPORARY
+  # Basically none of our Tesla mocks in tests set the (supposed to
+  # exist for Tesla proper) url parameter for their responses
+  # causing almost every fetch in test to fail otherwise
+  if @mix_env == :test do
+    defp check_crossdomain_redirect(nil, _) do
+      {:cross_domain_redirect, false}
+    end
+  end
+
+  defp check_crossdomain_redirect(final_host, original_url) do
+    {:cross_domain_redirect, final_host != URI.parse(original_url).host}
+  end
+
+  if @mix_env == :test do
+    defp get_final_id(nil, initial_url), do: initial_url
+    defp get_final_id("", initial_url), do: initial_url
+  end
+
+  defp get_final_id(final_url, _intial_url) do
+    final_url
+  end
+
+  @doc "Do NOT use; only public for use in tests"
   def get_object(id) do
     date = Pleroma.Signature.signed_date()
 
@@ -275,37 +328,42 @@ def get_object(id) do
       |> maybe_date_fetch(date)
       |> sign_fetch(id, date)
 
-    case HTTP.get(id, headers) do
+    with {:ok, %{body: body, status: code, headers: headers, url: final_url}}
-      {:ok, %{body: body, status: code, headers: headers}} when code in 200..299 ->
+         when code in 200..299 <-
-        case List.keyfind(headers, "content-type", 0) do
+           HTTP.get(id, headers),
-          {_, content_type} ->
+         remote_host <-
-            case Plug.Conn.Utils.media_type(content_type) do
+           URI.parse(final_url).host,
-              {:ok, "application", "activity+json", _} ->
+         {:cross_domain_redirect, false} <-
-                {:ok, body}
+           check_crossdomain_redirect(remote_host, id),
+         {:has_content_type, {_, content_type}} <-
+           {:has_content_type, List.keyfind(headers, "content-type", 0)},
+         {:parse_content_type, {:ok, "application", subtype, type_params}} <-
+           {:parse_content_type, Plug.Conn.Utils.media_type(content_type)} do
+      final_id = get_final_id(final_url, id)
 
-              {:ok, "application", "ld+json",
+      case {subtype, type_params} do
-               %{"profile" => "https://www.w3.org/ns/activitystreams"}} ->
+        {"activity+json", _} ->
-                {:ok, body}
+          {:ok, final_id, body}
 
-              # pixelfed sometimes (and only sometimes) responds with http instead of https
+        {"ld+json", %{"profile" => "https://www.w3.org/ns/activitystreams"}} ->
-              {:ok, "application", "ld+json",
+          {:ok, final_id, body}
-               %{"profile" => "http://www.w3.org/ns/activitystreams"}} ->
-                {:ok, body}
-
-              _ ->
-                {:error, {:content_type, content_type}}
-            end
-
-          _ ->
-            {:error, {:content_type, nil}}
-        end
 
+        _ ->
+          {:error, {:content_type, content_type}}
+      end
+    else
       {:ok, %{status: code}} when code in [404, 410] ->
         {:error, {"Object has been deleted", id, code}}
 
       {:error, e} ->
         {:error, e}
 
+      {:has_content_type, _} ->
+        {:error, {:content_type, nil}}
+
+      {:parse_content_type, e} ->
+        {:error, {:content_type, e}}
+
       e ->
         {:error, e}
     end

lib/pleroma/reverse_proxy.ex

@@ -17,6 +17,8 @@ defmodule Pleroma.ReverseProxy do
   @failed_request_ttl :timer.seconds(60)
   @methods ~w(GET HEAD)
 
+  @allowed_mime_types Pleroma.Config.get([Pleroma.Upload, :allowed_mime_types], [])
+
   @cachex Pleroma.Config.get([:cachex, :provider], Cachex)
 
   def max_read_duration_default, do: @max_read_duration
@@ -61,11 +63,14 @@ def default_cache_control_header, do: @default_cache_control_header
 
   """
   @inline_content_types [
+    "image/avif",
     "image/gif",
     "image/jpeg",
     "image/jpg",
+    "image/jxl",
     "image/png",
     "image/svg+xml",
+    "image/webp",
     "audio/mpeg",
     "audio/mp3",
     "video/webm",
@@ -250,6 +255,7 @@ defp build_resp_headers(headers, opts) do
     headers
     |> Enum.filter(fn {k, _} -> k in @keep_resp_headers end)
     |> build_resp_cache_headers(opts)
+    |> sanitise_content_type()
     |> build_resp_content_disposition_header(opts)
     |> build_csp_headers()
     |> Keyword.merge(Keyword.get(opts, :resp_headers, []))
@@ -279,6 +285,21 @@ defp build_resp_cache_headers(headers, _opts) do
     end
   end
 
+  defp sanitise_content_type(headers) do
+    original_ct = get_content_type(headers)
+
+    safe_ct =
+      Pleroma.Web.Plugs.Utils.get_safe_mime_type(
+        %{allowed_mime_types: @allowed_mime_types},
+        original_ct
+      )
+
+    [
+      {"content-type", safe_ct}
+      | Enum.filter(headers, fn {k, _v} -> k != "content-type" end)
+    ]
+  end
+
   defp build_resp_content_disposition_header(headers, opts) do
     opt = Keyword.get(opts, :inline_content_types, @inline_content_types)
 

lib/pleroma/signature.ex

@@ -76,6 +76,6 @@ def sign(%User{keys: keys} = user, headers) do
   def signed_date, do: signed_date(NaiveDateTime.utc_now())
 
   def signed_date(%NaiveDateTime{} = date) do
-    Timex.format!(date, "{WDshort}, {0D} {Mshort} {YYYY} {h24}:{m}:{s} GMT")
+    Timex.lformat!(date, "{WDshort}, {0D} {Mshort} {YYYY} {h24}:{m}:{s} GMT", "en")
   end
 end

lib/pleroma/upload.ex

@@ -39,6 +39,8 @@ defmodule Pleroma.Upload do
   alias Pleroma.Web.ActivityPub.Utils
   require Logger
 
+  @mix_env Mix.env()
+
   @type source ::
           Plug.Upload.t()
           | (data_uri_string :: String.t())
@@ -64,7 +66,7 @@ defmodule Pleroma.Upload do
           path: String.t()
         }
 
-  @always_enabled_filters [Pleroma.Upload.Filter.AnonymizeFilename]
+  @always_enabled_filters [Pleroma.Upload.Filter.Dedupe]
 
   defstruct [:id, :name, :tempfile, :content_type, :width, :height, :blurhash, :path]
 
@@ -228,6 +230,13 @@ defp url_from_spec(%__MODULE__{name: name}, base_url, {:file, path}) do
 
   defp url_from_spec(_upload, _base_url, {:url, url}), do: url
 
+  if @mix_env == :test do
+    defp choose_base_url(prim, sec \\ nil),
+      do: prim || sec || Pleroma.Web.Endpoint.url() <> "/media/"
+  else
+    defp choose_base_url(prim, sec \\ nil), do: prim || sec
+  end
+
   def base_url do
     uploader = Config.get([Pleroma.Upload, :uploader])
     upload_base_url = Config.get([Pleroma.Upload, :base_url])
@@ -235,7 +244,7 @@ def base_url do
 
     case uploader do
       Pleroma.Uploaders.Local ->
-        upload_base_url || Pleroma.Web.Endpoint.url() <> "/media/"
+        choose_base_url(upload_base_url)
 
       Pleroma.Uploaders.S3 ->
         bucket = Config.get([Pleroma.Uploaders.S3, :bucket])
@@ -261,7 +270,7 @@ def base_url do
         end
 
       _ ->
-        public_endpoint || upload_base_url || Pleroma.Web.Endpoint.url() <> "/media/"
+        choose_base_url(public_endpoint, upload_base_url)
     end
   end
 end

lib/pleroma/user.ex

@@ -44,6 +44,8 @@ defmodule Pleroma.User do
   alias Pleroma.Web.RelMe
   alias Pleroma.Workers.BackgroundWorker
 
+  use Pleroma.Web, :verified_routes
+
   require Logger
 
   @type t :: %__MODULE__{}
@@ -158,6 +160,7 @@ defmodule Pleroma.User do
     field(:last_status_at, :naive_datetime)
     field(:language, :string)
     field(:status_ttl_days, :integer, default: nil)
+    field(:permit_followback, :boolean, default: false)
 
     field(:accepts_direct_messages_from, Ecto.Enum,
       values: [:everybody, :people_i_follow, :nobody],
@@ -379,6 +382,10 @@ def banner_url(user, options \\ []) do
     do_optional_url(user.banner, "#{Endpoint.url()}/images/banner.png", options)
   end
 
+  def background_url(user) do
+    do_optional_url(user.background, nil, no_default: true)
+  end
+
   defp do_optional_url(field, default, options) do
     case field do
       %{"url" => [%{"href" => href} | _]} when is_binary(href) ->
@@ -463,6 +470,7 @@ def remote_user_changeset(struct \\ %User{local: false}, params) do
         :avatar,
         :ap_enabled,
         :banner,
+        :background,
         :is_locked,
         :last_refreshed_at,
         :uri,
@@ -542,6 +550,7 @@ def update_changeset(struct, params \\ %{}) do
         :actor_type,
         :disclose_client,
         :status_ttl_days,
+        :permit_followback,
         :accepts_direct_messages_from
       ]
     )
@@ -970,16 +979,21 @@ def needs_update?(%User{local: false} = user) do
 
   def needs_update?(_), do: true
 
+  # "Locked" (self-locked) users demand explicit authorization of follow requests
+  @spec can_direct_follow_local(User.t(), User.t()) :: true | false
+  def can_direct_follow_local(%User{} = follower, %User{local: true} = followed) do
+    !followed.is_locked || (followed.permit_followback and is_friend_of(follower, followed))
+  end
+
   @spec maybe_direct_follow(User.t(), User.t()) ::
           {:ok, User.t(), User.t()} | {:error, String.t()}
 
-  # "Locked" (self-locked) users demand explicit authorization of follow requests
-  def maybe_direct_follow(%User{} = follower, %User{local: true, is_locked: true} = followed) do
-    follow(follower, followed, :follow_pending)
-  end
-
   def maybe_direct_follow(%User{} = follower, %User{local: true} = followed) do
-    follow(follower, followed)
+    if can_direct_follow_local(follower, followed) do
+      follow(follower, followed)
+    else
+      follow(follower, followed, :follow_pending)
+    end
   end
 
   def maybe_direct_follow(%User{} = follower, %User{} = followed) do
@@ -1329,6 +1343,13 @@ def get_friends_ids(%User{} = user, page \\ nil) do
     |> Repo.all()
   end
 
+  def is_friend_of(%User{} = potential_friend, %User{local: true} = user) do
+    user
+    |> get_friends_query()
+    |> where(id: ^potential_friend.id)
+    |> Repo.exists?()
+  end
+
   def increase_note_count(%User{} = user) do
     User
     |> where(id: ^user.id)
@@ -1603,9 +1624,13 @@ def blocks_user?(%User{} = user, %User{} = target) do
   def blocks_user?(_, _), do: false
 
   def blocks_domain?(%User{} = user, %User{} = target) do
-    domain_blocks = Pleroma.Web.ActivityPub.MRF.subdomains_regex(user.domain_blocks)
     %{host: host} = URI.parse(target.ap_id)
-    Pleroma.Web.ActivityPub.MRF.subdomain_match?(domain_blocks, host)
+    Enum.member?(user.domain_blocks, host)
+    # TODO: functionality should probably be changed such that subdomains block as well,
+    # but as it stands, this just hecks up the relationships endpoint
+    # domain_blocks = Pleroma.Web.ActivityPub.MRF.subdomains_regex(user.domain_blocks)
+    # %{host: host} = URI.parse(target.ap_id)
+    # Pleroma.Web.ActivityPub.MRF.subdomain_match?(domain_blocks, host)
   end
 
   def blocks_domain?(_, _), do: false
@@ -2447,12 +2472,7 @@ defp validate_rel_me_field(changeset, fields, raw_fields, %User{
           end
 
         if is_url(raw_value) do
-          frontend_url =
+          frontend_url = url(~p[/#{nickname}])
-            Pleroma.Web.Router.Helpers.redirect_url(
-              Pleroma.Web.Endpoint,
-              :redirector_with_meta,
-              nickname
-            )
 
           possible_urls = [ap_id, frontend_url]
 

lib/pleroma/web.ex

@@ -27,6 +27,7 @@ defmodule Pleroma.Web do
   alias Pleroma.Web.Plugs.ExpectPublicOrAuthenticatedCheckPlug
   alias Pleroma.Web.Plugs.OAuthScopesPlug
   alias Pleroma.Web.Plugs.PlugHelper
+  require Pleroma.Constants
 
   def controller do
     quote do
@@ -37,7 +38,7 @@ def controller do
       import Pleroma.Web.Gettext
       import Pleroma.Web.TranslationHelpers
 
-      alias Pleroma.Web.Router.Helpers, as: Routes
+      unquote(verified_routes())
 
       plug(:set_put_layout)
 
@@ -184,7 +185,10 @@ def view do
 
       # Import convenience functions from controllers
       import Phoenix.Controller,
-        only: [get_flash: 1, get_flash: 2, view_module: 1, view_template: 1]
+        only: [view_module: 1, view_template: 1]
+
+      import Phoenix.Flash
+      alias Phoenix.Flash
 
       # Include shared imports and aliases for views
       unquote(view_helpers())
@@ -218,7 +222,7 @@ def component do
 
   def router do
     quote do
-      use Phoenix.Router
+      use Phoenix.Router, helpers: false
 
       import Plug.Conn
       import Phoenix.Controller
@@ -246,7 +250,24 @@ defp view_helpers do
 
       import Pleroma.Web.ErrorHelpers
       import Pleroma.Web.Gettext
-      alias Pleroma.Web.Router.Helpers, as: Routes
+      unquote(verified_routes())
+    end
+  end
+
+  def static_paths, do: Pleroma.Constants.static_only_files()
+
+  def verified_routes do
+    quote do
+      use Phoenix.VerifiedRoutes,
+        endpoint: Pleroma.Web.Endpoint,
+        router: Pleroma.Web.Router,
+        statics: Pleroma.Web.static_paths()
+    end
+  end
+
+  def mailer do
+    quote do
+      unquote(verified_routes())
     end
   end
 

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -22,6 +22,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
   alias Pleroma.Upload
   alias Pleroma.User
   alias Pleroma.Web.ActivityPub.MRF
+  alias Pleroma.Web.ActivityPub.ObjectValidators.UserValidator
   alias Pleroma.Web.ActivityPub.Transmogrifier
   alias Pleroma.Web.Streamer
   alias Pleroma.Web.WebFinger
@@ -1603,6 +1604,7 @@ defp object_to_user_data(data, additional) do
       uri: get_actor_url(data["url"]),
       ap_enabled: true,
       banner: normalize_image(data["image"]),
+      background: normalize_image(data["backgroundUrl"]),
       fields: fields,
       emoji: emojis,
       is_locked: is_locked,
@@ -1721,6 +1723,7 @@ def user_data_from_user_object(data, additional \\ []) do
 
   def fetch_and_prepare_user_from_ap_id(ap_id, additional \\ []) do
     with {:ok, data} <- Fetcher.fetch_and_contain_remote_object_from_id(ap_id),
+         {:valid, {:ok, _, _}} <- {:valid, UserValidator.validate(data, [])},
          {:ok, data} <- user_data_from_user_object(data, additional) do
       {:ok, maybe_update_follow_information(data)}
     else
@@ -1733,6 +1736,10 @@ def fetch_and_prepare_user_from_ap_id(ap_id, additional \\ []) do
         Logger.debug("Rejected user #{ap_id}: #{inspect(reason)}")
         {:error, e}
 
+      {:valid, reason} ->
+        Logger.debug("Data is not a valid user #{ap_id}: #{inspect(reason)}")
+        {:error, "Not a user"}
+
       {:error, e} ->
         Logger.error("Could not decode user at fetch #{ap_id}, #{inspect(e)}")
         {:error, e}
@@ -1792,6 +1799,11 @@ def pin_data_from_featured_collection(
     end)
   end
 
+  def pin_data_from_featured_collection(obj) do
+    Logger.error("Could not parse featured collection #{inspect(obj)}")
+    %{}
+  end
+
   def fetch_and_prepare_featured_from_ap_id(nil) do
     {:ok, %{}}
   end
@@ -1828,6 +1840,13 @@ def make_user_from_ap_id(ap_id, additional \\ []) do
       with {:ok, data} <- fetch_and_prepare_user_from_ap_id(ap_id, additional) do
         {:ok, _pid} = Task.start(fn -> pinned_fetch_task(data) end)
 
+        user =
+          if data.ap_id != ap_id do
+            User.get_cached_by_ap_id(data.ap_id)
+          else
+            user
+          end
+
         if user do
           user
           |> User.remote_user_changeset(data)

lib/pleroma/web/activity_pub/builder.ex

@@ -18,6 +18,8 @@ defmodule Pleroma.Web.ActivityPub.Builder do
   alias Pleroma.Web.CommonAPI.ActivityDraft
   alias Pleroma.Web.Endpoint
 
+  use Pleroma.Web, :verified_routes
+
   require Pleroma.Constants
 
   def accept_or_reject(actor, activity, type) do
@@ -402,6 +404,6 @@ def unpin(%User{} = user, object) do
   end
 
   defp pinned_url(nickname) when is_binary(nickname) do
-    Pleroma.Web.Router.Helpers.activity_pub_url(Pleroma.Web.Endpoint, :pinned, nickname)
+    url(~p[/users/#{nickname}/collections/featured])
   end
 end

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

@@ -178,6 +178,23 @@ defp check_banner_removal(%{host: actor_host} = _actor_info, %{"image" => _image
 
   defp check_banner_removal(_actor_info, object), do: {:ok, object}
 
+  defp check_background_removal(
+         %{host: actor_host} = _actor_info,
+         %{"backgroundUrl" => _bg} = object
+       ) do
+    background_removal =
+      instance_list(:background_removal)
+      |> MRF.subdomains_regex()
+
+    if MRF.subdomain_match?(background_removal, actor_host) do
+      {:ok, Map.delete(object, "backgroundUrl")}
+    else
+      {:ok, object}
+    end
+  end
+
+  defp check_background_removal(_actor_info, object), do: {:ok, object}
+
   defp extract_context_uri(%{"conversation" => "tag:" <> rest}) do
     rest
     |> String.split(",", parts: 2, trim: true)
@@ -283,7 +300,8 @@ def filter(%{"id" => actor, "type" => obj_type} = object)
     with {:ok, _} <- check_accept(actor_info),
          {:ok, _} <- check_reject(actor_info),
          {:ok, object} <- check_avatar_removal(actor_info, object),
-         {:ok, object} <- check_banner_removal(actor_info, object) do
+         {:ok, object} <- check_banner_removal(actor_info, object),
+         {:ok, object} <- check_background_removal(actor_info, object) do
       {:ok, object}
     else
       {:reject, nil} -> {:reject, "[SimplePolicy]"}
@@ -314,6 +332,20 @@ def filter(object) when is_binary(object) do
   def filter(object), do: {:ok, object}
 
   defp obfuscate(string) when is_binary(string) do
+    # Want to strip at least two neighbouring chars
+    # to ensure at least one non-dot char is in the obfuscation area
+    stripped = String.length(string) - 6
+
+    {keepstart, keepend} =
+      if stripped > 1 do
+        {3, 3}
+      else
+        {
+          2 - div(1 - stripped, 2),
+          2 + div(stripped, 2)
+        }
+      end
+
     string
     |> to_charlist()
     |> Enum.with_index()
@@ -322,7 +354,7 @@ defp obfuscate(string) when is_binary(string) do
         ?.
 
       {char, index} ->
-        if 3 <= index && index < String.length(string) - 3, do: ?*, else: char
+        if keepstart <= index && index < String.length(string) - keepend, do: ?*, else: char
     end)
     |> to_string()
   end
@@ -433,6 +465,11 @@ def config_description do
              key: :banner_removal,
              description: "List of instances to strip banners from and the reason for doing so"
            },
+           %{
+             key: :background_removal,
+             description:
+               "List of instances to strip user backgrounds from and the reason for doing so"
+           },
            %{
              key: :reject_deletes,
              description: "List of instances to reject deletions from and the reason for doing so"

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

@@ -6,10 +6,54 @@ defmodule Pleroma.Web.ActivityPub.MRF.StealEmojiPolicy do
   require Logger
 
   alias Pleroma.Config
+  alias Pleroma.Emoji.Pack
 
   @moduledoc "Detect new emojis by their shortcode and steals them"
   @behaviour Pleroma.Web.ActivityPub.MRF.Policy
 
+  @pack_name "stolen"
+
+  # Config defaults
+  @size_limit 50_000
+  @download_unknown_size false
+
+  defp create_pack() do
+    with {:ok, pack} = Pack.create(@pack_name) do
+      Pack.save_metadata(
+        %{
+          "description" => "Collection of emoji auto-stolen from other instances",
+          "homepage" => Pleroma.Web.Endpoint.url(),
+          "can-download" => false,
+          "share-files" => false
+        },
+        pack
+      )
+    end
+  end
+
+  defp load_or_create_pack() do
+    case Pack.load_pack(@pack_name) do
+      {:ok, pack} -> {:ok, pack}
+      {:error, :enoent} -> create_pack()
+      e -> e
+    end
+  end
+
+  defp add_emoji(shortcode, extension, filedata) do
+    {:ok, pack} = load_or_create_pack()
+    # Make final path infeasible to predict to thwart certain kinds of attacks
+    # (48 bits is slighty more than 8 base62 chars, thus 9 chars)
+    salt =
+      :crypto.strong_rand_bytes(6)
+      |> :crypto.bytes_to_integer()
+      |> Base62.encode()
+      |> String.pad_leading(9, "0")
+
+    filename = shortcode <> "-" <> salt <> "." <> extension
+
+    Pack.add_file(pack, shortcode, filename, filedata)
+  end
+
   defp accept_host?(host), do: host in Config.get([:mrf_steal_emoji, :hosts], [])
 
   defp shortcode_matches?(shortcode, pattern) when is_binary(pattern) do
@@ -20,30 +64,69 @@ defp shortcode_matches?(shortcode, pattern) do
     String.match?(shortcode, pattern)
   end
 
-  defp steal_emoji({shortcode, url}, emoji_dir_path) do
+  defp reject_emoji?({shortcode, _url}, installed_emoji) do
+    valid_shortcode? = String.match?(shortcode, ~r/^[a-zA-Z0-9_-]+$/)
+
+    rejected_shortcode? =
+      [:mrf_steal_emoji, :rejected_shortcodes]
+      |> Config.get([])
+      |> Enum.any?(fn pattern -> shortcode_matches?(shortcode, pattern) end)
+
+    emoji_installed? = Enum.member?(installed_emoji, shortcode)
+
+    !valid_shortcode? or rejected_shortcode? or emoji_installed?
+  end
+
+  defp steal_emoji(%{} = response, {shortcode, extension}) do
+    case add_emoji(shortcode, extension, response.body) do
+      {:ok, _} ->
+        shortcode
+
+      e ->
+        Logger.warning(
+          "MRF.StealEmojiPolicy: Failed to add #{shortcode} as #{extension}: #{inspect(e)}"
+        )
+
+        nil
+    end
+  end
+
+  defp get_extension_if_safe(response) do
+    content_type =
+      :proplists.get_value("content-type", response.headers, MIME.from_path(response.url))
+
+    case content_type do
+      "image/" <> _ -> List.first(MIME.extensions(content_type))
+      _ -> nil
+    end
+  end
+
+  defp is_remote_size_within_limit?(url) do
+    with {:ok, %{status: status, headers: headers} = _response} when status in 200..299 <-
+           Pleroma.HTTP.request(:head, url, nil, [], []) do
+      content_length = :proplists.get_value("content-length", headers, nil)
+      size_limit = Config.get([:mrf_steal_emoji, :size_limit], @size_limit)
+
+      accept_unknown =
+        Config.get([:mrf_steal_emoji, :download_unknown_size], @download_unknown_size)
+
+      content_length <= size_limit or
+        (content_length == nil and accept_unknown)
+    else
+      _ -> false
+    end
+  end
+
+  defp maybe_steal_emoji({shortcode, url}) do
     url = Pleroma.Web.MediaProxy.url(url)
 
-    with {:ok, %{status: status} = response} when status in 200..299 <- Pleroma.HTTP.get(url) do
+    with {:remote_size, true} <- {:remote_size, is_remote_size_within_limit?(url)},
-      size_limit = Config.get([:mrf_steal_emoji, :size_limit], 50_000)
+         {:ok, %{status: status} = response} when status in 200..299 <- Pleroma.HTTP.get(url) do
+      size_limit = Config.get([:mrf_steal_emoji, :size_limit], @size_limit)
+      extension = get_extension_if_safe(response)
 
-      if byte_size(response.body) <= size_limit do
+      if byte_size(response.body) <= size_limit and extension do
-        extension =
+        steal_emoji(response, {shortcode, extension})
-          url
-          |> URI.parse()
-          |> Map.get(:path)
-          |> Path.basename()
-          |> Path.extname()
-
-        file_path = Path.join(emoji_dir_path, shortcode <> (extension || ".png"))
-
-        case File.write(file_path, response.body) do
-          :ok ->
-            shortcode
-
-          e ->
-            Logger.warning("MRF.StealEmojiPolicy: Failed to write to #{file_path}: #{inspect(e)}")
-            nil
-        end
       else
         Logger.debug(
           "MRF.StealEmojiPolicy: :#{shortcode}: at #{url} (#{byte_size(response.body)} B) over size limit (#{size_limit} B)"
@@ -65,26 +148,10 @@ def filter(%{"object" => %{"emoji" => foreign_emojis, "actor" => actor}} = messa
     if host != Pleroma.Web.Endpoint.host() and accept_host?(host) do
       installed_emoji = Pleroma.Emoji.get_all() |> Enum.map(fn {k, _} -> k end)
 
-      emoji_dir_path =
-        Config.get(
-          [:mrf_steal_emoji, :path],
-          Path.join(Config.get([:instance, :static_dir]), "emoji/stolen")
-        )
-
-      File.mkdir_p(emoji_dir_path)
-
       new_emojis =
         foreign_emojis
-        |> Enum.reject(fn {shortcode, _url} -> shortcode in installed_emoji end)
+        |> Enum.reject(&reject_emoji?(&1, installed_emoji))
-        |> Enum.filter(fn {shortcode, _url} ->
+        |> Enum.map(&maybe_steal_emoji(&1))
-          reject_emoji? =
-            [:mrf_steal_emoji, :rejected_shortcodes]
-            |> Config.get([])
-            |> Enum.find(false, fn pattern -> shortcode_matches?(shortcode, pattern) end)
-
-          !reject_emoji?
-        end)
-        |> Enum.map(&steal_emoji(&1, emoji_dir_path))
         |> Enum.filter(& &1)
 
       if !Enum.empty?(new_emojis) do

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

@@ -0,0 +1,92 @@
+# Akkoma: Magically expressive social media
+# Copyright © 2024 Akkoma Authors <https://akkoma.dev/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.ObjectValidators.UserValidator do
+  @moduledoc """
+  Checks whether ActivityPub data represents a valid user
+
+  Users don't go through the same ingest pipeline like activities or other objects.
+  To ensure this can only match a user and no users match in the other pipeline,
+  this is a separate from the generic ObjectValidator.
+  """
+
+  @behaviour Pleroma.Web.ActivityPub.ObjectValidator.Validating
+
+  alias Pleroma.Object.Containment
+  alias Pleroma.Signature
+
+  @impl true
+  def validate(object, meta)
+
+  def validate(%{"type" => type, "id" => _id} = data, meta)
+      when type in ["Person", "Organization", "Group", "Application"] do
+    with :ok <- validate_pubkey(data),
+         :ok <- validate_inbox(data),
+         :ok <- contain_collection_origin(data) do
+      {:ok, data, meta}
+    else
+      {:error, e} -> {:error, e}
+      e -> {:error, e}
+    end
+  end
+
+  def validate(_, _), do: {:error, "Not a user object"}
+
+  defp mabye_validate_owner(nil, _actor), do: :ok
+  defp mabye_validate_owner(actor, actor), do: :ok
+  defp mabye_validate_owner(_owner, _actor), do: :error
+
+  defp validate_pubkey(
+         %{"id" => id, "publicKey" => %{"id" => pk_id, "publicKeyPem" => _key}} = data
+       )
+       when id != nil do
+    with {_, {:ok, kactor}} <- {:key, Signature.key_id_to_actor_id(pk_id)},
+         true <- id == kactor,
+         :ok <- mabye_validate_owner(Map.get(data, "owner"), id) do
+      :ok
+    else
+      {:key, _} ->
+        {:error, "Unable to determine actor id from key id"}
+
+      false ->
+        {:error, "Key id does not relate to user id"}
+
+      _ ->
+        {:error, "Actor does not own its public key"}
+    end
+  end
+
+  # pubkey is optional atm
+  defp validate_pubkey(_data), do: :ok
+
+  defp validate_inbox(%{"id" => id, "inbox" => inbox}) do
+    case Containment.same_origin(id, inbox) do
+      :ok -> :ok
+      :error -> {:error, "Inbox on different doamin"}
+    end
+  end
+
+  defp validate_inbox(_), do: {:error, "No inbox"}
+
+  defp check_field_value(%{"id" => id} = _data, value) do
+    Containment.same_origin(id, value)
+  end
+
+  defp maybe_check_field(data, field) do
+    with val when val != nil <- data[field],
+         :ok <- check_field_value(data, val) do
+      :ok
+    else
+      nil -> :ok
+      _ -> {:error, "#{field} on different domain"}
+    end
+  end
+
+  defp contain_collection_origin(data) do
+    Enum.reduce(["followers", "following", "featured"], :ok, fn
+      field, :ok -> maybe_check_field(data, field)
+      _, error -> error
+    end)
+  end
+end

lib/pleroma/web/activity_pub/side_effects.ex

@@ -109,7 +109,7 @@ def handle(
          %User{} = followed <- User.get_cached_by_ap_id(followed_user),
          {_, {:ok, _, _}, _, _} <-
            {:following, User.follow(follower, followed, :follow_pending), follower, followed} do
-      if followed.local && !followed.is_locked do
+      if followed.local && User.can_direct_follow_local(follower, followed) do
         {:ok, accept_data, _} = Builder.accept(followed, object)
         {:ok, _activity, _} = Pipeline.common_pipeline(accept_data, local: true)
       end

lib/pleroma/web/activity_pub/utils.ex

@@ -16,10 +16,11 @@ defmodule Pleroma.Web.ActivityPub.Utils do
   alias Pleroma.Web.ActivityPub.Visibility
   alias Pleroma.Web.AdminAPI.AccountView
   alias Pleroma.Web.Endpoint
-  alias Pleroma.Web.Router.Helpers
 
   import Ecto.Query
 
+  use Pleroma.Web, :verified_routes
+
   require Logger
   require Pleroma.Constants
 
@@ -124,19 +125,15 @@ def make_date do
   end
 
   def generate_activity_id do
-    generate_id("activities")
+    url(~p[/activities/#{UUID.generate()}])
   end
 
   def generate_context_id do
-    generate_id("contexts")
+    url(~p[/contexts/#{UUID.generate()}])
   end
 
   def generate_object_id do
-    Helpers.o_status_url(Endpoint, :object, UUID.generate())
+    url(~p[/objects/#{UUID.generate()}])
-  end
-
-  def generate_id(type) do
-    "#{Endpoint.url()}/#{type}/#{UUID.generate()}"
   end
 
   def get_notified_from_object(%{"type" => type} = object) when type in @supported_object_types do
@@ -154,7 +151,7 @@ def get_notified_from_object(object) do
     Notification.get_notified_from_activity(%Activity{data: object}, false)
   end
 
-  def maybe_create_context(context), do: context || generate_id("contexts")
+  def maybe_create_context(context), do: context || generate_context_id()
 
   @doc """
   Enqueues an activity for federation if it's local

lib/pleroma/web/activity_pub/views/user_view.ex

@@ -12,24 +12,22 @@ defmodule Pleroma.Web.ActivityPub.UserView do
   alias Pleroma.Web.ActivityPub.ObjectView
   alias Pleroma.Web.ActivityPub.Transmogrifier
   alias Pleroma.Web.ActivityPub.Utils
-  alias Pleroma.Web.Endpoint
-  alias Pleroma.Web.Router.Helpers
 
   require Pleroma.Web.ActivityPub.Transmogrifier
 
   import Ecto.Query
 
   def render("endpoints.json", %{user: %User{nickname: nil, local: true} = _user}) do
-    %{"sharedInbox" => Helpers.activity_pub_url(Endpoint, :inbox)}
+    %{"sharedInbox" => url(~p"/inbox")}
   end
 
   def render("endpoints.json", %{user: %User{local: true} = _user}) do
     %{
-      "oauthAuthorizationEndpoint" => Helpers.o_auth_url(Endpoint, :authorize),
+      "oauthAuthorizationEndpoint" => url(~p"/oauth/authorize"),
-      "oauthRegistrationEndpoint" => Helpers.app_url(Endpoint, :create),
+      "oauthRegistrationEndpoint" => url(~p"/api/v1/apps"),
-      "oauthTokenEndpoint" => Helpers.o_auth_url(Endpoint, :token_exchange),
+      "oauthTokenEndpoint" => url(~p"/oauth/token"),
-      "sharedInbox" => Helpers.activity_pub_url(Endpoint, :inbox),
+      "sharedInbox" => url(~p"/inbox"),
-      "uploadMedia" => Helpers.activity_pub_url(Endpoint, :upload_media)
+      "uploadMedia" => url(~p"/api/ap/upload_media")
     }
   end
 
@@ -48,6 +46,7 @@ def render("service.json", %{user: user}) do
       "following" => "#{user.ap_id}/following",
       "followers" => "#{user.ap_id}/followers",
       "inbox" => "#{user.ap_id}/inbox",
+      "outbox" => "#{user.ap_id}/outbox",
       "name" => "Pleroma",
       "summary" =>
         "An internal service actor for this Pleroma instance.  No user-serviceable parts inside.",
@@ -113,6 +112,8 @@ def render("user.json", %{user: user}) do
     }
     |> Map.merge(maybe_make_image(&User.avatar_url/2, "icon", user))
     |> Map.merge(maybe_make_image(&User.banner_url/2, "image", user))
+    # Yes, the key is named ...Url eventhough it is a whole 'Image' object
+    |> Map.merge(maybe_insert_image("backgroundUrl", User.background_url(user)))
     |> Map.merge(Utils.make_json_ld_header())
   end
 
@@ -288,7 +289,12 @@ def collection(collection, iri, page, show_items \\ true, total \\ nil) do
   end
 
   defp maybe_make_image(func, key, user) do
-    if image = func.(user, no_default: true) do
+    image = func.(user, no_default: true)
+    maybe_insert_image(key, image)
+  end
+
+  defp maybe_insert_image(key, image) do
+    if image do
       %{
         key => %{
           "type" => "Image",

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

@@ -17,9 +17,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
   alias Pleroma.Web.AdminAPI
   alias Pleroma.Web.AdminAPI.AccountView
   alias Pleroma.Web.AdminAPI.ModerationLogView
-  alias Pleroma.Web.Endpoint
   alias Pleroma.Web.Plugs.OAuthScopesPlug
-  alias Pleroma.Web.Router
 
   @users_page_size 50
 
@@ -256,7 +254,7 @@ def get_password_reset(conn, %{"nickname" => nickname}) do
     conn
     |> json(%{
       token: token.token,
-      link: Router.Helpers.reset_password_url(Endpoint, :reset, token.token)
+      link: url(~p[/api/v1/pleroma/password_reset/#{token.token}])
     })
   end
 

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

@@ -451,6 +451,20 @@ def endorsements_operation do
     }
   end
 
+  def preferences_operation do
+    %Operation{
+      tags: ["Account Preferences"],
+      description: "Preferences defined by the user in their account settings.",
+      summary: "Preferred common behaviors to be shared across clients.",
+      operationId: "AccountController.preferences",
+      security: [%{"oAuth" => ["read:accounts"]}],
+      responses: %{
+        200 => Operation.response("Preferences", "application/json", Account),
+        401 => Operation.response("Error", "application/json", ApiError)
+      }
+    }
+  end
+
   def identity_proofs_operation do
     %Operation{
       tags: ["Retrieve account information"],
@@ -709,6 +723,12 @@ defp update_credentials_request do
           description:
             "Number of days after which statuses will be deleted. Set to -1 to disable."
         },
+        permit_followback: %Schema{
+          allOf: [BooleanLike],
+          nullable: true,
+          description:
+            "Whether follow requests from accounts the user is already following are auto-approved (when locked)."
+        },
         accepts_direct_messages_from: %Schema{
           type: :string,
           enum: [
@@ -740,6 +760,7 @@ defp update_credentials_request do
         discoverable: false,
         actor_type: "Person",
         status_ttl_days: 30,
+        permit_followback: true,
         accepts_direct_messages_from: "everybody"
       }
     }

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

@@ -111,9 +111,9 @@ def available_frontends_operation() do
   def update_preferred_frontend_operation() do
     %Operation{
       tags: ["Frontends"],
-      summary: "Frontend Settings Profiles",
+      summary: "Update preferred frontend setting",
-      description: "List frontend setting profiles",
+      description: "Store preferred frontend in cookies",
-      operationId: "AkkomaAPI.FrontendSettingsController.available_frontends",
+      operationId: "AkkomaAPI.FrontendSettingsController.update_preferred_frontend",
       requestBody:
         request_body(
           "Frontend",
@@ -132,9 +132,11 @@ def update_preferred_frontend_operation() do
       responses: %{
         200 =>
           Operation.response("Frontends", "application/json", %Schema{
-            type: :array,
+            type: :object,
-            items: %Schema{
+            properties: %{
-              type: :string
+              frontend_name: %Schema{
+                type: :string
+              }
             }
           })
       }

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

@@ -137,7 +137,7 @@ defp instance do
         "background_upload_limit" => 4_000_000,
         "background_image" => "/static/image.png",
         "banner_upload_limit" => 4_000_000,
-        "description" => "Pleroma: An efficient and flexible fediverse server",
+        "description" => "Akkoma: The cooler fediverse server",
         "email" => "lain@lain.com",
         "languages" => ["en"],
         "max_toot_chars" => 5000,
@@ -160,7 +160,7 @@ defp instance do
         "urls" => %{
           "streaming_api" => "wss://lain.com"
         },
-        "version" => "2.7.2 (compatible; Pleroma 2.0.50-536-g25eec6d7-develop)"
+        "version" => "2.7.2 (compatible; Akkoma 3.9.3-232-g6fde75e1-develop)"
       }
     }
   end

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

@@ -112,7 +112,18 @@ defmodule Pleroma.Web.ApiSpec.Schemas.Account do
       akkoma: %Schema{
         type: :object,
         properties: %{
-          note_ttl_days: %Schema{type: :integer}
+          instance: %Schema{
+            type: :object,
+            nullable: true,
+            properties: %{
+              name: %Schema{type: :string},
+              favicon: %Schema{type: :string, format: :uri, nullable: true},
+              # XXX: proper nodeinfo schema
+              nodeinfo: %Schema{type: :object, nullable: true}
+            }
+          },
+          status_ttl_days: %Schema{type: :integer, nullable: true},
+          permit_followback: %Schema{type: :boolean}
         }
       },
       source: %Schema{
@@ -205,6 +216,18 @@ defmodule Pleroma.Web.ApiSpec.Schemas.Account do
           "pleroma-fe" => %{}
         }
       },
+      "akkoma" => %{
+        "instance" => %{
+          "name" => "ihatebeinga.live",
+          "favicon" => "https://ihatebeinga.live/favicon.png",
+          "nodeinfo" =>
+            %{
+              # XXX: nodeinfo schema
+            }
+        },
+        "status_ttl_days" => nil,
+        "permit_followback" => true
+      },
       "source" => %{
         "fields" => [],
         "note" => "foobar",

lib/pleroma/web/endpoint.ex

@@ -97,7 +97,11 @@ defmodule Pleroma.Web.Endpoint do
     Plug.Static,
     at: "/",
     from: :pleroma,
-    only: Pleroma.Constants.static_only_files(),
+    only: Pleroma.Web.static_paths(),
+    # JSON-LD is accepted by some servers for AP objects and activities,
+    # thus only enable it here instead of a global extension mapping
+    # (it's our only *.jsonld file anyway)
+    content_types: %{"litepub-0.1.jsonld" => "application/ld+json"},
     # credo:disable-for-previous-line Credo.Check.Readability.MaxLineLength
     gzip: true,
     cache_control_for_etags: @static_cache_control,

lib/pleroma/web/feed/user_controller.ex

@@ -30,7 +30,7 @@ def feed_redirect(%{assigns: %{format: format}} = conn, _params)
 
   def feed_redirect(conn, %{"nickname" => nickname}) do
     with {_, %User{} = user} <- {:fetch_user, User.get_cached_by_nickname(nickname)} do
-      redirect(conn, external: "#{Routes.user_feed_url(conn, :feed, user.nickname)}.atom")
+      redirect(conn, external: "#{url(~p"/users/#{user.nickname}/feed")}.atom")
     end
   end
 

lib/pleroma/web/masto_fe_controller.ex

@@ -34,9 +34,9 @@ def index(conn, _params) do
 
       index =
         if flavour == "fedibird-fe" do
-          "fedibird.index.html"
+          "fedibird.html"
         else
-          "glitchsoc.index.html"
+          "glitchsoc.html"
         end
 
       conn

lib/pleroma/web/mastodon_api/controllers/account_controller.ex

@@ -51,7 +51,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountController do
   plug(
     OAuthScopesPlug,
     %{scopes: ["read:accounts"]}
-    when action in [:verify_credentials, :endorsements, :identity_proofs]
+    when action in [:verify_credentials, :endorsements, :identity_proofs, :preferences]
   )
 
   plug(
@@ -222,6 +222,7 @@ def update_credentials(%{assigns: %{user: user}, body_params: params} = conn, _p
       |> Maps.put_if_present(:language, Pleroma.Web.Gettext.normalize_locale(params[:language]))
       |> Maps.put_if_present(:status_ttl_days, params[:status_ttl_days], status_ttl_days_value)
       |> Maps.put_if_present(:accepts_direct_messages_from, params[:accepts_direct_messages_from])
+      |> Maps.put_if_present(:permit_followback, params[:permit_followback])
 
     # What happens here:
     #
@@ -544,4 +545,9 @@ def endorsements(conn, params), do: MastodonAPIController.empty_array(conn, para
 
   @doc "GET /api/v1/identity_proofs"
   def identity_proofs(conn, params), do: MastodonAPIController.empty_array(conn, params)
+
+  @doc "GET /api/v1/preferences"
+  def preferences(%{assigns: %{user: user}} = conn, _params) do
+    render(conn, "preferences.json", user: user)
+  end
 end

lib/pleroma/web/mastodon_api/controllers/auth_controller.ex

@@ -54,12 +54,7 @@ def login(conn, params) do
   defp redirect_to_oauth_form(conn, _params) do
     with {:ok, app} <- local_mastofe_app() do
       path =
-        Routes.o_auth_path(conn, :authorize,
+        ~p[/oauth/authorize?#{[response_type: "code", client_id: app.client_id, redirect_uri: ".", scope: Enum.join(app.scopes, " ")]}]
-          response_type: "code",
-          client_id: app.client_id,
-          redirect_uri: ".",
-          scope: Enum.join(app.scopes, " ")
-        )
 
       redirect(conn, to: path)
     end
@@ -91,7 +86,7 @@ def password_reset(conn, params) do
   defp local_mastodon_post_login_path(conn) do
     case get_session(conn, :return_to) do
       nil ->
-        Routes.masto_fe_path(conn, :index, ["getting-started"])
+        ~p"/web/getting-started"
 
       return_to ->
         delete_session(conn, :return_to)

lib/pleroma/web/mastodon_api/views/account_view.ex

@@ -190,6 +190,17 @@ def render("instance.json", %{instance: %Pleroma.Instances.Instance{} = instance
 
   def render("instance.json", _), do: nil
 
+  def render("preferences.json", %{user: user} = _opts) do
+    # TODO: Do we expose more settings that make sense to plug in here?
+    %{
+      "posting:default:visibility": user.default_scope,
+      "posting:default:sensitive": false,
+      "posting:default:language": nil,
+      "reading:expand:media": "default",
+      "reading:expand:spoilers": false
+    }
+  end
+
   defp do_render("show.json", %{user: user} = opts) do
     user = User.sanitize_html(user, User.html_filter_policy(opts[:for]))
     display_name = user.name || user.nickname
@@ -250,6 +261,9 @@ defp do_render("show.json", %{user: user} = opts) do
         |> MediaProxy.url()
       end
 
+    last_status_at =
+      if is_nil(user.last_status_at), do: nil, else: NaiveDateTime.to_date(user.last_status_at)
+
     %{
       id: to_string(user.id),
       username: username_from_nickname(user.nickname),
@@ -278,10 +292,11 @@ defp do_render("show.json", %{user: user} = opts) do
           actor_type: user.actor_type
         }
       },
-      last_status_at: user.last_status_at,
+      last_status_at: last_status_at,
       akkoma: %{
         instance: render("instance.json", %{instance: instance}),
-        status_ttl_days: user.status_ttl_days
+        status_ttl_days: user.status_ttl_days,
+        permit_followback: user.permit_followback
       },
       # Pleroma extensions
       # Note: it's insecure to output :email but fully-qualified nickname may serve as safe stub

lib/pleroma/web/mastodon_api/views/status_view.ex

@@ -322,7 +322,7 @@ def render("show.json", %{activity: %{id: id, data: %{"object" => _object}} = ac
 
       url =
         if user.local do
-          Pleroma.Web.Router.Helpers.o_status_url(Pleroma.Web.Endpoint, :notice, activity)
+          url(~p[/notice/#{activity}])
         else
           object.data["url"] || object.data["external_url"] || object.data["id"]
         end

lib/pleroma/web/mastodon_api/views/tag_view.ex

@@ -1,7 +1,6 @@
 defmodule Pleroma.Web.MastodonAPI.TagView do
   use Pleroma.Web, :view
   alias Pleroma.User
-  alias Pleroma.Web.Router.Helpers
 
   def render("index.json", %{tags: tags, for_user: user}) do
     render_many(tags, __MODULE__, "show.json", %{for_user: user})
@@ -17,7 +16,7 @@ def render("show.json", %{tag: tag, for_user: user}) do
 
     %{
       name: tag.name,
-      url: Helpers.tag_feed_url(Pleroma.Web.Endpoint, :feed, tag.name),
+      url: url(~p[/tags/#{tag.name}]),
       history: [],
       following: following
     }

lib/pleroma/web/media_proxy.ex

@@ -14,6 +14,8 @@ defmodule Pleroma.Web.MediaProxy do
 
   @cachex Pleroma.Config.get([:cachex, :provider], Cachex)
 
+  @mix_env Mix.env()
+
   def cache_table, do: @cache_table
 
   @spec in_banned_urls(String.t()) :: boolean()
@@ -144,8 +146,14 @@ def filename(url_or_path) do
     if path = URI.parse(url_or_path).path, do: Path.basename(path)
   end
 
-  def base_url do
+  if @mix_env == :test do
-    Config.get([:media_proxy, :base_url], Endpoint.url())
+    def base_url do
+      Config.get([:media_proxy, :base_url], Endpoint.url())
+    end
+  else
+    def base_url do
+      Config.get!([:media_proxy, :base_url])
+    end
   end
 
   defp proxy_url(path, sig_base64, url_base64, filename) do

lib/pleroma/web/metadata/providers/feed.ex

@@ -3,9 +3,9 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.Metadata.Providers.Feed do
-  alias Pleroma.Web.Endpoint
   alias Pleroma.Web.Metadata.Providers.Provider
-  alias Pleroma.Web.Router.Helpers
+
+  use Pleroma.Web, :verified_routes
 
   @behaviour Provider
 
@@ -16,7 +16,7 @@ def build_tags(%{user: user}) do
        [
          rel: "alternate",
          type: "application/atom+xml",
-         href: Helpers.user_feed_path(Endpoint, :feed, user.nickname) <> ".atom"
+         href: ~p[/users/#{user.nickname}/feed.atom]
        ], []}
     ]
   end

lib/pleroma/web/metadata/providers/twitter_card.ex

@@ -10,6 +10,8 @@ defmodule Pleroma.Web.Metadata.Providers.TwitterCard do
   alias Pleroma.Web.Metadata.Providers.Provider
   alias Pleroma.Web.Metadata.Utils
 
+  use Pleroma.Web, :verified_routes
+
   @behaviour Provider
   @media_types ["image", "audio", "video"]
 
@@ -112,7 +114,7 @@ defp build_attachments(id, %{data: %{"attachment" => attachments}}) do
   defp build_attachments(_id, _object), do: []
 
   defp player_url(id) do
-    Pleroma.Web.Router.Helpers.o_status_url(Pleroma.Web.Endpoint, :notice_player, id)
+    url(~p[/notice/#{id}/embed_player])
   end
 
   # Videos have problems without dimensions, but we used to not provide WxH for images.

lib/pleroma/web/o_auth/o_auth_controller.ex

@@ -39,6 +39,7 @@ defmodule Pleroma.Web.OAuth.OAuthController do
   action_fallback(Pleroma.Web.OAuth.FallbackController)
 
   @oob_token_redirect_uri "urn:ietf:wg:oauth:2.0:oob"
+  @state_cookie_name "akkoma_oauth_state"
 
   # Note: this definition is only called from error-handling methods with `conn.params` as 2nd arg
   def authorize(%Plug.Conn{} = conn, %{"authorization" => _} = params) do
@@ -443,13 +444,10 @@ def prepare_request(%Plug.Conn{} = conn, %{
       |> Map.put("scope", scope)
       |> Jason.encode!()
 
-    params =
-      auth_attrs
-      |> Map.drop(~w(scope scopes client_id redirect_uri))
-      |> Map.put("state", state)
-
     # Handing the request to Ueberauth
-    redirect(conn, to: Routes.o_auth_path(conn, :request, provider, params))
+    conn
+    |> put_resp_cookie(@state_cookie_name, state)
+    |> redirect(to: ~p"/oauth/#{provider}")
   end
 
   def request(%Plug.Conn{} = conn, params) do
@@ -468,20 +466,26 @@ def request(%Plug.Conn{} = conn, params) do
   end
 
   def callback(%Plug.Conn{assigns: %{ueberauth_failure: failure}} = conn, params) do
-    params = callback_params(params)
+    params = callback_params(conn, params)
     messages = for e <- Map.get(failure, :errors, []), do: e.message
     message = Enum.join(messages, "; ")
 
-    conn
+    error_message = dgettext("errors", "Failed to authenticate: %{message}.", message: message)
-    |> put_flash(
+
-      :error,
+    if params["redirect_uri"] do
-      dgettext("errors", "Failed to authenticate: %{message}.", message: message)
+      conn
-    )
+      |> put_flash(
-    |> redirect(external: redirect_uri(conn, params["redirect_uri"]))
+        :error,
+        error_message
+      )
+      |> redirect(external: redirect_uri(conn, params["redirect_uri"]))
+    else
+      send_resp(conn, :bad_request, error_message)
+    end
   end
 
   def callback(%Plug.Conn{} = conn, params) do
-    params = callback_params(params)
+    params = callback_params(conn, params)
 
     with {:ok, registration} <- Authenticator.get_registration(conn) do
       auth_attrs = Map.take(params, ~w(client_id redirect_uri scope scopes state))
@@ -511,8 +515,9 @@ def callback(%Plug.Conn{} = conn, params) do
     end
   end
 
-  defp callback_params(%{"state" => state} = params) do
+  defp callback_params(%Plug.Conn{} = conn, params) do
-    Map.merge(params, Jason.decode!(state))
+    fetch_cookies(conn)
+    Map.merge(params, Jason.decode!(Map.get(conn.req_cookies, @state_cookie_name, "{}")))
   end
 
   def registration_details(%Plug.Conn{} = conn, %{"authorization" => auth_attrs}) do
@@ -623,7 +628,7 @@ def login(%User{} = user, %App{} = app, requested_scopes) when is_list(requested
   end
 
   # Special case: Local MastodonFE
-  defp redirect_uri(%Plug.Conn{} = conn, "."), do: Routes.auth_url(conn, :login)
+  defp redirect_uri(_, "."), do: url(~p"/web/login")
 
   defp redirect_uri(%Plug.Conn{}, redirect_uri), do: redirect_uri
 

lib/pleroma/web/o_status/o_status_controller.ex

@@ -14,7 +14,6 @@ defmodule Pleroma.Web.OStatus.OStatusController do
   alias Pleroma.Web.Fallback.RedirectController
   alias Pleroma.Web.Metadata.PlayerView
   alias Pleroma.Web.Plugs.RateLimiter
-  alias Pleroma.Web.Router
 
   plug(
     RateLimiter,
@@ -87,7 +86,7 @@ def notice(%{assigns: %{format: format}} = conn, %{"id" => id}) do
             %{
               activity_id: activity.id,
               object: object,
-              url: Router.Helpers.o_status_url(Endpoint, :notice, activity.id),
+              url: url(~p[/notice/#{activity.id}]),
               user: user
             }
           )

lib/pleroma/web/plugs/http_signature_plug.ex

@@ -5,8 +5,9 @@
 defmodule Pleroma.Web.Plugs.HTTPSignaturePlug do
   import Plug.Conn
   import Phoenix.Controller, only: [get_format: 1]
+
+  use Pleroma.Web, :verified_routes
   alias Pleroma.Activity
-  alias Pleroma.Web.Router
   alias Pleroma.Signature
   alias Pleroma.Instances
   require Logger
@@ -32,10 +33,10 @@ def call(conn, _opts) do
   end
 
   def route_aliases(%{path_info: ["objects", id], query_string: query_string}) do
-    ap_id = Router.Helpers.o_status_url(Pleroma.Web.Endpoint, :object, id)
+    ap_id = url(~p[/objects/#{id}])
 
     with %Activity{} = activity <- Activity.get_by_object_ap_id_with_object(ap_id) do
-      ["/notice/#{activity.id}", "/notice/#{activity.id}?#{query_string}"]
+      [~p"/notice/#{activity.id}", "/notice/#{activity.id}?#{query_string}"]
     else
       _ -> []
     end

lib/pleroma/web/plugs/instance_static.ex

@@ -3,8 +3,12 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.Plugs.InstanceStatic do
+  import Plug.Conn
+
   require Pleroma.Constants
 
+  alias Pleroma.Web.Plugs.Utils
+
   @moduledoc """
   This is a shim to call `Plug.Static` but with runtime `from` configuration.
 
@@ -43,11 +47,25 @@ def call(conn, _) do
     conn
   end
 
-  defp call_static(conn, opts, from) do
+  defp set_static_content_type(conn, "/emoji/" <> _ = request_path) do
+    real_mime = MIME.from_path(request_path)
+    safe_mime = Utils.get_safe_mime_type(%{allowed_mime_types: ["image"]}, real_mime)
+
+    put_resp_header(conn, "content-type", safe_mime)
+  end
+
+  defp set_static_content_type(conn, request_path) do
+    put_resp_header(conn, "content-type", MIME.from_path(request_path))
+  end
+
+  defp call_static(%{request_path: request_path} = conn, opts, from) do
     opts =
       opts
       |> Map.put(:from, from)
+      |> Map.put(:set_content_type, false)
 
-    Plug.Static.call(conn, opts)
+    conn
+    |> set_static_content_type(request_path)
+    |> Pleroma.Web.Plugs.StaticNoCT.call(opts)
   end
 end

lib/pleroma/web/plugs/static_no_content_type.ex

@@ -0,0 +1,469 @@
+# This is almost identical to Plug.Static from Plug 1.15.3 (2024-01-16)
+# It being copied is a temporary measure to fix an urgent bug without
+# needing to wait for merge of a suitable patch upstream
+# The differences are:
+#  - this leading comment
+#  - renaming of the module from 'Plug.Static' to 'Pleroma.Web.Plugs.StaticNoCT'
+#  - additon of set_content_type option
+
+defmodule Pleroma.Web.Plugs.StaticNoCT do
+  @moduledoc """
+  A plug for serving static assets.
+
+  It requires two options:
+
+    * `:at` - the request path to reach for static assets.
+      It must be a string.
+
+    * `:from` - the file system path to read static assets from.
+      It can be either: a string containing a file system path, an
+      atom representing the application name (where assets will
+      be served from `priv/static`), a tuple containing the
+      application name and the directory to serve assets from (besides
+      `priv/static`), or an MFA tuple.
+
+  The preferred form is to use `:from` with an atom or tuple, since
+  it will make your application independent from the starting directory.
+  For example, if you pass:
+
+      plug Plug.Static, from: "priv/app/path"
+
+  Plug.Static will be unable to serve assets if you build releases
+  or if you change the current directory. Instead do:
+
+      plug Plug.Static, from: {:app_name, "priv/app/path"}
+
+  If a static asset cannot be found, `Plug.Static` simply forwards
+  the connection to the rest of the pipeline.
+
+  ## Cache mechanisms
+
+  `Plug.Static` uses etags for HTTP caching. This means browsers/clients
+  should cache assets on the first request and validate the cache on
+  following requests, not downloading the static asset once again if it
+  has not changed. The cache-control for etags is specified by the
+  `cache_control_for_etags` option and defaults to `"public"`.
+
+  However, `Plug.Static` also supports direct cache control by using
+  versioned query strings. If the request query string starts with
+  "?vsn=", `Plug.Static` assumes the application is versioning assets
+  and does not set the `ETag` header, meaning the cache behaviour will
+  be specified solely by the `cache_control_for_vsn_requests` config,
+  which defaults to `"public, max-age=31536000"`.
+
+  ## Options
+
+    * `:encodings` - list of 2-ary tuples where first value is value of
+      the `Accept-Encoding` header and second is extension of the file to
+      be served if given encoding is accepted by client. Entries will be tested
+      in order in list, so entries higher in list will be preferred. Defaults
+      to: `[]`.
+
+      In addition to setting this value directly it supports 2 additional
+      options for compatibility reasons:
+
+        + `:brotli` - will append `{"br", ".br"}` to the encodings list.
+        + `:gzip` - will append `{"gzip", ".gz"}` to the encodings list.
+
+      Additional options will be added in the above order (Brotli takes
+      preference over Gzip) to reflect older behaviour which was set due
+      to fact that Brotli in general provides better compression ratio than
+      Gzip.
+
+    * `:cache_control_for_etags` - sets the cache header for requests
+      that use etags. Defaults to `"public"`.
+
+    * `:etag_generation` - specify a `{module, function, args}` to be used
+      to generate   an etag. The `path` of the resource will be passed to
+      the function, as well as the `args`. If this option is not supplied,
+      etags will be generated based off of file size and modification time.
+      Note it is [recommended for the etag value to be quoted](https://tools.ietf.org/html/rfc7232#section-2.3),
+      which Plug won't do automatically.
+
+    * `:cache_control_for_vsn_requests` - sets the cache header for
+      requests starting with "?vsn=" in the query string. Defaults to
+      `"public, max-age=31536000"`.
+
+    * `:only` - filters which requests to serve. This is useful to avoid
+      file system access on every request when this plug is mounted
+      at `"/"`. For example, if `only: ["images", "favicon.ico"]` is
+      specified, only files in the "images" directory and the
+      "favicon.ico" file will be served by `Plug.Static`.
+      Note that `Plug.Static` matches these filters against request
+      uri and not against the filesystem. When requesting
+      a file with name containing non-ascii or special characters,
+      you should use urlencoded form. For example, you should write
+      `only: ["file%20name"]` instead of `only: ["file name"]`.
+      Defaults to `nil` (no filtering).
+
+    * `:only_matching` - a relaxed version of `:only` that will
+      serve any request as long as one of the given values matches the
+      given path. For example, `only_matching: ["images", "favicon"]`
+      will match any request that starts at "images" or "favicon",
+      be it "/images/foo.png", "/images-high/foo.png", "/favicon.ico"
+      or "/favicon-high.ico". Such matches are useful when serving
+      digested files at the root. Defaults to `nil` (no filtering).
+
+    * `:headers` - other headers to be set when serving static assets. Specify either
+      an enum of key-value pairs or a `{module, function, args}` to return an enum. The
+      `conn` will be passed to the function, as well as the `args`.
+
+    * `:content_types` - custom MIME type mapping. As a map with filename as key
+      and content type as value. For example:
+      `content_types: %{"apple-app-site-association" => "application/json"}`.
+
+    * `:set_content_type` - by default Plug.Static (re)sets the content type header
+      using auto-detection and the `:content_types` map. But when set to `false`
+      no content-type header will be inserted instead retaining the original
+      value or lack thereof. This can be useful when custom logic for appropiate
+      content types is needed which cannot be reasonably expressed as a static
+      filename map.
+
+  ## Examples
+
+  This plug can be mounted in a `Plug.Builder` pipeline as follows:
+
+      defmodule MyPlug do
+        use Plug.Builder
+
+        plug Plug.Static,
+          at: "/public",
+          from: :my_app,
+          only: ~w(images robots.txt)
+        plug :not_found
+
+        def not_found(conn, _) do
+          send_resp(conn, 404, "not found")
+        end
+      end
+
+  """
+
+  @behaviour Plug
+  @allowed_methods ~w(GET HEAD)
+
+  import Plug.Conn
+  alias Plug.Conn
+
+  # In this module, the `:prim_file` Erlang module along with the `:file_info`
+  # record are used instead of the more common and Elixir-y `File` module and
+  # `File.Stat` struct, respectively. The reason behind this is performance: all
+  # the `File` operations pass through a single process in order to support node
+  # operations that we simply don't need when serving assets.
+
+  require Record
+  Record.defrecordp(:file_info, Record.extract(:file_info, from_lib: "kernel/include/file.hrl"))
+
+  defmodule InvalidPathError do
+    defexception message: "invalid path for static asset", plug_status: 400
+  end
+
+  @impl true
+  def init(opts) do
+    from =
+      case Keyword.fetch!(opts, :from) do
+        {_, _} = from -> from
+        {_, _, _} = from -> from
+        from when is_atom(from) -> {from, "priv/static"}
+        from when is_binary(from) -> from
+        _ -> raise ArgumentError, ":from must be an atom, a binary or a tuple"
+      end
+
+    encodings =
+      opts
+      |> Keyword.get(:encodings, [])
+      |> maybe_add("br", ".br", Keyword.get(opts, :brotli, false))
+      |> maybe_add("gzip", ".gz", Keyword.get(opts, :gzip, false))
+
+    %{
+      encodings: encodings,
+      only_rules: {Keyword.get(opts, :only, []), Keyword.get(opts, :only_matching, [])},
+      qs_cache: Keyword.get(opts, :cache_control_for_vsn_requests, "public, max-age=31536000"),
+      et_cache: Keyword.get(opts, :cache_control_for_etags, "public"),
+      et_generation: Keyword.get(opts, :etag_generation, nil),
+      headers: Keyword.get(opts, :headers, %{}),
+      content_types: Keyword.get(opts, :content_types, %{}),
+      set_content_type: Keyword.get(opts, :set_content_type, true),
+      from: from,
+      at: opts |> Keyword.fetch!(:at) |> Plug.Router.Utils.split()
+    }
+  end
+
+  @impl true
+  def call(
+        conn = %Conn{method: meth},
+        %{at: at, only_rules: only_rules, from: from, encodings: encodings} = options
+      )
+      when meth in @allowed_methods do
+    segments = subset(at, conn.path_info)
+
+    if allowed?(only_rules, segments) do
+      segments = Enum.map(segments, &uri_decode/1)
+
+      if invalid_path?(segments) do
+        raise InvalidPathError, "invalid path for static asset: #{conn.request_path}"
+      end
+
+      path = path(from, segments)
+      range = get_req_header(conn, "range")
+      encoding = file_encoding(conn, path, range, encodings)
+      serve_static(encoding, conn, segments, range, options)
+    else
+      conn
+    end
+  end
+
+  def call(conn, _options) do
+    conn
+  end
+
+  defp uri_decode(path) do
+    # TODO: Remove rescue as this can't fail from Elixir v1.13
+    try do
+      URI.decode(path)
+    rescue
+      ArgumentError ->
+        raise InvalidPathError
+    end
+  end
+
+  defp allowed?(_only_rules, []), do: false
+  defp allowed?({[], []}, _list), do: true
+
+  defp allowed?({full, prefix}, [h | _]) do
+    h in full or (prefix != [] and match?({0, _}, :binary.match(h, prefix)))
+  end
+
+  defp maybe_put_content_type(conn, false, _, _), do: conn
+
+  defp maybe_put_content_type(conn, _, types, filename) do
+    content_type = Map.get(types, filename) || MIME.from_path(filename)
+
+    conn
+    |> put_resp_header("content-type", content_type)
+  end
+
+  defp serve_static({content_encoding, file_info, path}, conn, segments, range, options) do
+    %{
+      qs_cache: qs_cache,
+      et_cache: et_cache,
+      et_generation: et_generation,
+      headers: headers,
+      content_types: types,
+      set_content_type: set_content_type
+    } = options
+
+    case put_cache_header(conn, qs_cache, et_cache, et_generation, file_info, path) do
+      {:stale, conn} ->
+        filename = List.last(segments)
+
+        conn
+        |> maybe_put_content_type(set_content_type, types, filename)
+        |> put_resp_header("accept-ranges", "bytes")
+        |> maybe_add_encoding(content_encoding)
+        |> merge_headers(headers)
+        |> serve_range(file_info, path, range, options)
+
+      {:fresh, conn} ->
+        conn
+        |> maybe_add_vary(options)
+        |> send_resp(304, "")
+        |> halt()
+    end
+  end
+
+  defp serve_static(:error, conn, _segments, _range, _options) do
+    conn
+  end
+
+  defp serve_range(conn, file_info, path, [range], options) do
+    file_info(size: file_size) = file_info
+
+    with %{"bytes" => bytes} <- Plug.Conn.Utils.params(range),
+         {range_start, range_end} <- start_and_end(bytes, file_size) do
+      send_range(conn, path, range_start, range_end, file_size, options)
+    else
+      _ -> send_entire_file(conn, path, options)
+    end
+  end
+
+  defp serve_range(conn, _file_info, path, _range, options) do
+    send_entire_file(conn, path, options)
+  end
+
+  defp start_and_end("-" <> rest, file_size) do
+    case Integer.parse(rest) do
+      {last, ""} when last > 0 and last <= file_size -> {file_size - last, file_size - 1}
+      _ -> :error
+    end
+  end
+
+  defp start_and_end(range, file_size) do
+    case Integer.parse(range) do
+      {first, "-"} when first >= 0 ->
+        {first, file_size - 1}
+
+      {first, "-" <> rest} when first >= 0 ->
+        case Integer.parse(rest) do
+          {last, ""} when last >= first -> {first, min(last, file_size - 1)}
+          _ -> :error
+        end
+
+      _ ->
+        :error
+    end
+  end
+
+  defp send_range(conn, path, 0, range_end, file_size, options) when range_end == file_size - 1 do
+    send_entire_file(conn, path, options)
+  end
+
+  defp send_range(conn, path, range_start, range_end, file_size, _options) do
+    length = range_end - range_start + 1
+
+    conn
+    |> put_resp_header("content-range", "bytes #{range_start}-#{range_end}/#{file_size}")
+    |> send_file(206, path, range_start, length)
+    |> halt()
+  end
+
+  defp send_entire_file(conn, path, options) do
+    conn
+    |> maybe_add_vary(options)
+    |> send_file(200, path)
+    |> halt()
+  end
+
+  defp maybe_add_encoding(conn, nil), do: conn
+  defp maybe_add_encoding(conn, ce), do: put_resp_header(conn, "content-encoding", ce)
+
+  defp maybe_add_vary(conn, %{encodings: encodings}) do
+    # If we serve gzip or brotli at any moment, we need to set the proper vary
+    # header regardless of whether we are serving gzip content right now.
+    # See: http://www.fastly.com/blog/best-practices-for-using-the-vary-header/
+    if encodings != [] do
+      update_in(conn.resp_headers, &[{"vary", "Accept-Encoding"} | &1])
+    else
+      conn
+    end
+  end
+
+  defp put_cache_header(
+         %Conn{query_string: "vsn=" <> _} = conn,
+         qs_cache,
+         _et_cache,
+         _et_generation,
+         _file_info,
+         _path
+       )
+       when is_binary(qs_cache) do
+    {:stale, put_resp_header(conn, "cache-control", qs_cache)}
+  end
+
+  defp put_cache_header(conn, _qs_cache, et_cache, et_generation, file_info, path)
+       when is_binary(et_cache) do
+    etag = etag_for_path(file_info, et_generation, path)
+
+    conn =
+      conn
+      |> put_resp_header("cache-control", et_cache)
+      |> put_resp_header("etag", etag)
+
+    if etag in get_req_header(conn, "if-none-match") do
+      {:fresh, conn}
+    else
+      {:stale, conn}
+    end
+  end
+
+  defp put_cache_header(conn, _, _, _, _, _) do
+    {:stale, conn}
+  end
+
+  defp etag_for_path(file_info, et_generation, path) do
+    case et_generation do
+      {module, function, args} ->
+        apply(module, function, [path | args])
+
+      nil ->
+        file_info(size: size, mtime: mtime) = file_info
+        <<?", {size, mtime} |> :erlang.phash2() |> Integer.to_string(16)::binary, ?">>
+    end
+  end
+
+  defp file_encoding(conn, path, [_range], _encodings) do
+    # We do not support compression for range queries.
+    file_encoding(conn, path, nil, [])
+  end
+
+  defp file_encoding(conn, path, _range, encodings) do
+    encoded =
+      Enum.find_value(encodings, fn {encoding, ext} ->
+        if file_info = accept_encoding?(conn, encoding) && regular_file_info(path <> ext) do
+          {encoding, file_info, path <> ext}
+        end
+      end)
+
+    cond do
+      not is_nil(encoded) ->
+        encoded
+
+      file_info = regular_file_info(path) ->
+        {nil, file_info, path}
+
+      true ->
+        :error
+    end
+  end
+
+  defp regular_file_info(path) do
+    case :prim_file.read_file_info(path) do
+      {:ok, file_info(type: :regular) = file_info} ->
+        file_info
+
+      _ ->
+        nil
+    end
+  end
+
+  defp accept_encoding?(conn, encoding) do
+    encoding? = &String.contains?(&1, [encoding, "*"])
+
+    Enum.any?(get_req_header(conn, "accept-encoding"), fn accept ->
+      accept |> Plug.Conn.Utils.list() |> Enum.any?(encoding?)
+    end)
+  end
+
+  defp maybe_add(list, key, value, true), do: list ++ [{key, value}]
+  defp maybe_add(list, _key, _value, false), do: list
+
+  defp path({module, function, arguments}, segments)
+       when is_atom(module) and is_atom(function) and is_list(arguments),
+       do: Enum.join([apply(module, function, arguments) | segments], "/")
+
+  defp path({app, from}, segments) when is_atom(app) and is_binary(from),
+    do: Enum.join([Application.app_dir(app), from | segments], "/")
+
+  defp path(from, segments),
+    do: Enum.join([from | segments], "/")
+
+  defp subset([h | expected], [h | actual]), do: subset(expected, actual)
+  defp subset([], actual), do: actual
+  defp subset(_, _), do: []
+
+  defp invalid_path?(list) do
+    invalid_path?(list, :binary.compile_pattern(["/", "\\", ":", "\0"]))
+  end
+
+  defp invalid_path?([h | _], _match) when h in [".", "..", ""], do: true
+  defp invalid_path?([h | t], match), do: String.contains?(h, match) or invalid_path?(t)
+  defp invalid_path?([], _match), do: false
+
+  defp merge_headers(conn, {module, function, args}) do
+    merge_headers(conn, apply(module, function, [conn | args]))
+  end
+
+  defp merge_headers(conn, headers) do
+    merge_resp_headers(conn, headers)
+  end
+end

lib/pleroma/web/plugs/uploaded_media.ex

@@ -11,6 +11,7 @@ defmodule Pleroma.Web.Plugs.UploadedMedia do
   require Logger
 
   alias Pleroma.Web.MediaProxy
+  alias Pleroma.Web.Plugs.Utils
 
   @behaviour Plug
   # no slashes
@@ -28,10 +29,21 @@ def init(_opts) do
       |> Keyword.put(:at, "/__unconfigured_media_plug")
       |> Plug.Static.init()
 
-    %{static_plug_opts: static_plug_opts}
+    config = Pleroma.Config.get(Pleroma.Upload)
+    allowed_mime_types = Keyword.fetch!(config, :allowed_mime_types)
+    uploader = Keyword.fetch!(config, :uploader)
+
+    %{
+      static_plug_opts: static_plug_opts,
+      allowed_mime_types: allowed_mime_types,
+      uploader: uploader
+    }
   end
 
-  def call(%{request_path: <<"/", @path, "/", file::binary>>} = conn, opts) do
+  def call(
+        %{request_path: <<"/", @path, "/", file::binary>>} = conn,
+        %{uploader: uploader} = opts
+      ) do
     conn =
       case fetch_query_params(conn) do
         %{query_params: %{"name" => name}} = conn ->
@@ -44,10 +56,7 @@ def call(%{request_path: <<"/", @path, "/", file::binary>>} = conn, opts) do
       end
       |> merge_resp_headers([{"content-security-policy", "sandbox"}])
 
-    config = Pleroma.Config.get(Pleroma.Upload)
+    with {:ok, get_method} <- uploader.get_file(file),
-
-    with uploader <- Keyword.fetch!(config, :uploader),
-         {:ok, get_method} <- uploader.get_file(file),
          false <- media_is_banned(conn, get_method) do
       get_media(conn, get_method, opts)
     else
@@ -68,13 +77,23 @@ defp media_is_banned(_, {:url, url}), do: MediaProxy.in_banned_urls(url)
 
   defp media_is_banned(_, _), do: false
 
+  defp set_content_type(conn, opts, filepath) do
+    real_mime = MIME.from_path(filepath)
+    clean_mime = Utils.get_safe_mime_type(opts, real_mime)
+    put_resp_header(conn, "content-type", clean_mime)
+  end
+
   defp get_media(conn, {:static_dir, directory}, opts) do
     static_opts =
       Map.get(opts, :static_plug_opts)
       |> Map.put(:at, [@path])
       |> Map.put(:from, directory)
+      |> Map.put(:set_content_type, false)
 
-    conn = Plug.Static.call(conn, static_opts)
+    conn =
+      conn
+      |> set_content_type(opts, conn.request_path)
+      |> Pleroma.Web.Plugs.StaticNoCT.call(static_opts)
 
     if conn.halted do
       conn

lib/pleroma/web/plugs/utils.ex

@@ -0,0 +1,14 @@
+# Akkoma: Magically expressive social media
+# Copyright © 2024 Akkoma Authors <https://akkoma.dev>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.Plugs.Utils do
+  @moduledoc """
+  Some helper functions shared across several plugs
+  """
+
+  def get_safe_mime_type(%{allowed_mime_types: allowed_mime_types} = _opts, mime) do
+    [maintype | _] = String.split(mime, "/", parts: 2)
+    if maintype in allowed_mime_types, do: mime, else: "application/octet-stream"
+  end
+end

lib/pleroma/web/router.ex

@@ -630,6 +630,8 @@ defmodule Pleroma.Web.Router do
     post("/tags/:id/follow", TagController, :follow)
     post("/tags/:id/unfollow", TagController, :unfollow)
     get("/followed_tags", TagController, :show_followed)
+
+    get("/preferences", AccountController, :preferences)
   end
 
   scope "/api/web", Pleroma.Web do

lib/pleroma/web/static_fe/static_fe_controller.ex

@@ -11,7 +11,6 @@ defmodule Pleroma.Web.StaticFE.StaticFEController do
   alias Pleroma.Web.ActivityPub.ActivityPub
   alias Pleroma.Web.ActivityPub.Visibility
   alias Pleroma.Web.Metadata
-  alias Pleroma.Web.Router.Helpers
 
   plug(:put_layout, :static_fe)
   plug(:assign_id)
@@ -25,7 +24,13 @@ def show(%{assigns: %{notice_id: notice_id}} = conn, _params) do
          true <- Visibility.is_public?(activity.object),
          {_, true} <- {:visible?, Visibility.visible_for_user?(activity, _reading_user = nil)},
          %User{} = user <- User.get_by_ap_id(activity.object.data["actor"]) do
-      meta = Metadata.build_tags(%{url: activity.data["id"], object: activity.object, user: user})
+      meta =
+        Metadata.build_tags(%{
+          activity_id: notice_id,
+          url: activity.data["id"],
+          object: activity.object,
+          user: user
+        })
 
       timeline =
         activity.object.data["context"]
@@ -111,11 +116,11 @@ def show(%{assigns: %{username_or_id: username_or_id, tab: tab}} = conn, params)
   end
 
   def show(%{assigns: %{object_id: _}} = conn, _params) do
-    url = Helpers.url(conn) <> conn.request_path
+    url = unverified_url(conn, conn.request_path)
 
     case Activity.get_create_by_object_ap_id_with_object(url) do
       %Activity{} = activity ->
-        to = Helpers.o_status_path(Pleroma.Web.Endpoint, :notice, activity)
+        to = ~p[/notice/#{activity}]
         redirect(conn, to: to)
 
       _ ->
@@ -124,11 +129,11 @@ def show(%{assigns: %{object_id: _}} = conn, _params) do
   end
 
   def show(%{assigns: %{activity_id: _}} = conn, _params) do
-    url = Helpers.url(conn) <> conn.request_path
+    url = unverified_url(conn, conn.request_path)
 
     case Activity.get_by_ap_id(url) do
       %Activity{} = activity ->
-        to = Helpers.o_status_path(Pleroma.Web.Endpoint, :notice, activity)
+        to = ~p[/notice/#{activity}]
         redirect(conn, to: to)
 
       _ ->
@@ -167,7 +172,7 @@ defp represent(%Activity{object: %Object{data: data}} = activity, selected) do
 
     link =
       case user.local do
-        true -> Helpers.o_status_url(Pleroma.Web.Endpoint, :notice, activity)
+        true -> ~p[/notice/#{activity}]
         _ -> data["url"] || data["external_url"] || data["id"]
       end
 

lib/pleroma/web/static_fe/static_fe_view.ex

@@ -11,7 +11,6 @@ defmodule Pleroma.Web.StaticFE.StaticFEView do
   alias Pleroma.Web.Gettext
   alias Pleroma.Web.MediaProxy
   alias Pleroma.Web.Metadata.Utils
-  alias Pleroma.Web.Router.Helpers
 
   use Phoenix.HTML
 

lib/pleroma/web/telemetry.ex

@@ -101,7 +101,8 @@ defp distribution_metrics do
     ]
   end
 
-  defp summary_metrics do
+  # Summary metrics are currently not (yet) supported by the prometheus exporter
+  defp summary_metrics(byte_unit) do
     [
       # Phoenix Metrics
       summary("phoenix.endpoint.stop.duration",
@@ -118,10 +119,98 @@ defp summary_metrics do
       summary("pleroma.repo.query.idle_time", unit: {:native, :millisecond}),
 
       # VM Metrics
-      summary("vm.memory.total", unit: {:byte, :kilobyte}),
+      summary("vm.memory.total", unit: {:byte, byte_unit}),
       summary("vm.total_run_queue_lengths.total"),
       summary("vm.total_run_queue_lengths.cpu"),
-      summary("vm.total_run_queue_lengths.io"),
+      summary("vm.total_run_queue_lengths.io")
+    ]
+  end
+
+  defp sum_counter_pair(basename, opts) do
+    [
+      sum(basename <> ".psum", opts),
+      counter(basename <> ".pcount", opts)
+    ]
+  end
+
+  # Prometheus exporter doesn't support summaries, so provide fallbacks
+  defp summary_fallback_metrics(byte_unit \\ :byte) do
+    # Summary metrics are not supported by the Prometheus exporter
+    #   https://github.com/beam-telemetry/telemetry_metrics_prometheus_core/issues/11
+    # and sum metrics currently only work with integers
+    #   https://github.com/beam-telemetry/telemetry_metrics_prometheus_core/issues/35
+    #
+    # For VM metrics this is kindof ok as they appear to always be integers
+    # and we can use sum + counter to get the average between polls from their change
+    # But for repo query times we need to use a full distribution
+
+    simple_buckets = [0, 1, 2, 4, 8, 16]
+    simple_buckets_quick = for t <- simple_buckets, do: t / 100.0
+
+    # Already included in distribution metrics anyway:
+    #   phoenix.router_dispatch.stop.duration
+    #   pleroma.repo.query.total_time
+    #   pleroma.repo.query.queue_time
+    dist_metrics =
+      [
+        distribution("phoenix.endpoint.stop.duration.fdist",
+          event_name: [:phoenix, :endpoint, :stop],
+          measurement: :duration,
+          unit: {:native, :millisecond},
+          reporter_options: [
+            buckets: simple_buckets
+          ]
+        ),
+        distribution("pleroma.repo.query.decode_time.fdist",
+          event_name: [:pleroma, :repo, :query],
+          measurement: :decode_time,
+          unit: {:native, :millisecond},
+          reporter_options: [
+            buckets: simple_buckets_quick
+          ]
+        ),
+        distribution("pleroma.repo.query.query_time.fdist",
+          event_name: [:pleroma, :repo, :query],
+          measurement: :query_time,
+          unit: {:native, :millisecond},
+          reporter_options: [
+            buckets: simple_buckets
+          ]
+        ),
+        distribution("pleroma.repo.query.idle_time.fdist",
+          event_name: [:pleroma, :repo, :query],
+          measurement: :idle_time,
+          unit: {:native, :millisecond},
+          reporter_options: [
+            buckets: simple_buckets
+          ]
+        )
+      ]
+
+    vm_metrics =
+      sum_counter_pair("vm.memory.total",
+        event_name: [:vm, :memory],
+        measurement: :total,
+        unit: {:byte, byte_unit}
+      ) ++
+        sum_counter_pair("vm.total_run_queue_lengths.total",
+          event_name: [:vm, :total_run_queue_lengths],
+          measurement: :total
+        ) ++
+        sum_counter_pair("vm.total_run_queue_lengths.cpu",
+          event_name: [:vm, :total_run_queue_lengths],
+          measurement: :cpu
+        ) ++
+        sum_counter_pair("vm.total_run_queue_lengths.io.fsum",
+          event_name: [:vm, :total_run_queue_lengths],
+          measurement: :io
+        )
+
+    dist_metrics ++ vm_metrics
+  end
+
+  defp common_metrics do
+    [
       last_value("pleroma.local_users.total"),
       last_value("pleroma.domains.total"),
       last_value("pleroma.local_statuses.total"),
@@ -129,8 +218,10 @@ defp summary_metrics do
     ]
   end
 
-  def prometheus_metrics, do: summary_metrics() ++ distribution_metrics()
+  def prometheus_metrics,
-  def live_dashboard_metrics, do: summary_metrics()
+    do: common_metrics() ++ distribution_metrics() ++ summary_fallback_metrics()
+
+  def live_dashboard_metrics, do: common_metrics() ++ summary_metrics(:megabyte)
 
   defp periodic_measurements do
     [

lib/pleroma/web/templates/akkoma_api/frontend_switcher/switch.html.eex

@@ -2,7 +2,7 @@
 
 <h3>After you submit, you will need to refresh manually to get your new frontend!</h3>
 
-<%= form_for @conn, Routes.frontend_switcher_path(@conn, :do_switch), fn f -> %>
+<%= form_for @conn, ~p"/akkoma/frontend", fn f -> %>
   <%= select(f, :frontend, @choices) %>
 
   <%= submit do: "submit" %>

lib/pleroma/web/templates/feed/feed/tag.atom.eex

@@ -9,13 +9,13 @@
       xmlns:ostatus="http://ostatus.org/schema/1.0"
       xmlns:statusnet="http://status.net/schema/api/1/">
 
-    <id><%= '#{Routes.tag_feed_url(@conn, :feed, @tag)}.rss' %></id>
+    <id><%= '#{url(~p"/tags/#{@tag}")}.rss' %></id>
     <title>#<%= @tag %></title>
 
     <subtitle><%= Gettext.dpgettext("static_pages", "tag feed description", "These are public toots tagged with #%{tag}. You can interact with them if you have an account anywhere in the fediverse.", tag: @tag) %></subtitle>
     <logo><%= feed_logo() %></logo>
     <updated><%= most_recent_update(@activities) %></updated>
-    <link rel="self" href="<%= '#{Routes.tag_feed_url(@conn, :feed, @tag)}.atom'  %>" type="application/atom+xml"/>
+    <link rel="self" href="<%= '#{url(~p"/tags/#{@tag}")}.atom'  %>" type="application/atom+xml"/>
     <%= for activity <- @activities do %>
     <%= render @view_module, "_tag_activity.atom", Map.merge(assigns, prepare_activity(activity, actor: true)) %>
     <% end %>

lib/pleroma/web/templates/feed/feed/tag.rss.eex

@@ -5,7 +5,7 @@
 
     <title>#<%= @tag %></title>
     <description><%= Gettext.dpgettext("static_pages", "tag feed description", "These are public toots tagged with #%{tag}. You can interact with them if you have an account anywhere in the fediverse.", tag: @tag) %></description>
-    <link><%= '#{Routes.tag_feed_url(@conn, :feed, @tag)}.rss' %></link>
+    <link><%= '#{url(~p"/tags/#{@tag}")}.rss' %></link>
     <webfeeds:logo><%= feed_logo() %></webfeeds:logo>
     <webfeeds:accentColor>2b90d9</webfeeds:accentColor>
     <%= for activity <- @activities do %>

lib/pleroma/web/templates/feed/feed/user.atom.eex

@@ -6,16 +6,16 @@
   xmlns:poco="http://portablecontacts.net/spec/1.0"
   xmlns:ostatus="http://ostatus.org/schema/1.0">
 
-  <id><%= Routes.user_feed_url(@conn, :feed, @user.nickname) <> ".atom" %></id>
+  <id><%= url(~p"/users/#{@user.nickname}/feed") <> ".atom" %></id>
   <title><%= @user.nickname <> "'s timeline" %></title>
   <updated><%= most_recent_update(@activities, @user) %></updated>
   <logo><%= logo(@user) %></logo>
-  <link rel="self" href="<%= '#{Routes.user_feed_url(@conn, :feed, @user.nickname)}.atom' %>" type="application/atom+xml"/>
+  <link rel="self" href="<%= '#{url(~p"/users/#{@user.nickname}/feed")}.atom' %>" type="application/atom+xml"/>
 
   <%= render @view_module, "_author.atom", assigns %>
 
   <%= if last_activity(@activities) do %>
-    <link rel="next" href="<%= '#{Routes.user_feed_url(@conn, :feed, @user.nickname)}.atom?max_id=#{last_activity(@activities).id}' %>" type="application/atom+xml"/>
+    <link rel="next" href="<%= '#{url(~p"/users/#{@user.nickname}/feed")}.atom?max_id=#{last_activity(@activities).id}' %>" type="application/atom+xml"/>
   <% end %>
 
   <%= for activity <- @activities do %>

lib/pleroma/web/templates/feed/feed/user.rss.eex

@@ -1,16 +1,16 @@
 <?xml version="1.0" encoding="UTF-8" ?>
 <rss version="2.0">
   <channel>
-    <guid><%= Routes.user_feed_url(@conn, :feed, @user.nickname) <> ".rss" %></guid>
+    <guid><%= url(~p"/users/#{@user.nickname}/feed") <> ".rss" %></guid>
     <title><%= @user.nickname <> "'s timeline" %></title>
     <updated><%= most_recent_update(@activities, @user) %></updated>
     <image><%= logo(@user) %></image>
-    <link><%= '#{Routes.user_feed_url(@conn, :feed, @user.nickname)}.rss' %></link>
+    <link><%= '#{url(~p"/users/#{@user.nickname}/feed")}.rss' %></link>
 
     <%= render @view_module, "_author.rss", assigns %>
 
     <%= if last_activity(@activities) do %>
-      <link rel="next"><%= '#{Routes.user_feed_url(@conn, :feed, @user.nickname)}.rss?max_id=#{last_activity(@activities).id}' %></link>
+      <link rel="next"><%= '#{url(~p"/users/#{@user.nickname}/feed")}.rss?max_id=#{last_activity(@activities).id}' %></link>
     <% end %>
 
     <%= for activity <- @activities do %>

lib/pleroma/web/templates/masto_fe/fedibird.html.heex

@@ -0,0 +1,58 @@
+<!DOCTYPE html>
+<!-- FEDIBIRD -->
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <meta content="width=device-width, initial-scale=1" name="viewport" />
+    <title>
+      <%= Config.get([:instance, :name]) %>
+    </title>
+    <link rel="icon" type="image/png" href="/favicon.png" />
+    <link rel="manifest" type="applicaton/manifest+json" {%{href: ~p"/web/manifest.json"}} />
+
+    <meta name="theme-color" {%{content: Config.get([:manifest, :theme_color])}} />
+
+    <script id="initial-state" type="application/json">
+      <%= initial_state(@token, @user, @custom_emojis) %>
+    </script>
+
+    <script crossorigin="anonymous" src="/packs/js/common.js">
+    </script>
+    <script crossorigin="anonymous" src="/packs/js/locale_en.js">
+    </script>
+
+    <link
+      rel="preload"
+      as="script"
+      crossorigin="anonymous"
+      href="/packs/js/features/getting_started.js"
+    />
+    <link rel="preload" as="script" crossorigin="anonymous" href="/packs/js/features/compose.js" />
+    <link
+      rel="preload"
+      as="script"
+      crossorigin="anonymous"
+      href="/packs/js/features/home_timeline.js"
+    />
+    <link
+      rel="preload"
+      as="script"
+      crossorigin="anonymous"
+      href="/packs/js/features/public_timeline.js"
+    />
+    <link
+      rel="preload"
+      as="script"
+      crossorigin="anonymous"
+      href="/packs/js/features/notifications.js"
+    />
+    <script crossorigin="anonymous" src="/packs/js/application.js">
+    </script>
+
+    <link rel="stylesheet" media="all" href="/packs/css/common.css" />
+    <link rel="stylesheet" media="all" href="/packs/css/default.css" />
+  </head>
+  <body class="app-body no-reduce-motion system-font">
+    <div class="app-holder" data-props="{&quot;locale&quot;:&quot;en&quot;}" id="mastodon"></div>
+  </body>
+</html>

lib/pleroma/web/templates/masto_fe/fedibird.index.html.eex

@@ -1,35 +0,0 @@
-<!DOCTYPE html>
-<html lang='en'>
-<head>
-<meta charset='utf-8'>
-<meta content='width=device-width, initial-scale=1' name='viewport'>
-<title>
-<%= Config.get([:instance, :name]) %>
-</title>
-<link rel="icon" type="image/png" href="/favicon.png"/>
-<link rel="manifest" type="applicaton/manifest+json" href="<%= Routes.masto_fe_path(Pleroma.Web.Endpoint, :manifest) %>" />
-
-<meta name="theme-color" content="<%= Config.get([:manifest, :theme_color]) %>" />
-
-<script id='initial-state' type='application/json'><%= initial_state(@token, @user, @custom_emojis) %></script>
-
-<script crossorigin='anonymous' src="/packs/js/common.js"></script>
-<script crossorigin='anonymous' src="/packs/js/locale_en.js"></script>
-
-<link rel='preload' as='script' crossorigin='anonymous' href='/packs/js/features/getting_started.js'>
-<link rel='preload' as='script' crossorigin='anonymous' href='/packs/js/features/compose.js'>
-<link rel='preload' as='script' crossorigin='anonymous' href='/packs/js/features/home_timeline.js'>
-<link rel='preload' as='script' crossorigin='anonymous' href='/packs/js/features/public_timeline.js'>
-<link rel='preload' as='script' crossorigin='anonymous' href='/packs/js/features/notifications.js'>
-<script crossorigin='anonymous' src="/packs/js/application.js"></script>
-
-
-<link rel="stylesheet" media="all" href="/packs/css/common.css" />
-<link rel="stylesheet" media="all" href="/packs/css/default.css" />
-
-</head>
-<body class='app-body no-reduce-motion system-font'>
-  <div class='app-holder' data-props='{&quot;locale&quot;:&quot;en&quot;}' id='mastodon'>
-  </div>
-</body>
-</html>

lib/pleroma/web/templates/masto_fe/glitchsoc.html.heex

@@ -0,0 +1,57 @@
+<!DOCTYPE html>
+<!-- GLITCHSOC -->
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <meta content="width=device-width, initial-scale=1" name="viewport" />
+    <title>
+      <%= Config.get([:instance, :name]) %>
+    </title>
+    <link rel="icon" type="image/png" href="/favicon.png" />
+    <link rel="manifest" type="applicaton/manifest+json" {%{href: ~p"/web/manifest.json"}} />
+
+    <meta name="theme-color" {%{content: Config.get([:manifest, :theme_color])}} />
+
+    <script crossorigin="anonymous" src="/packs/js/locales.js">
+    </script>
+    <script crossorigin="anonymous" src="/packs/js/locales/glitch/en.js">
+    </script>
+
+    <link
+      rel="preload"
+      as="script"
+      crossorigin="anonymous"
+      href="/packs/js/features/getting_started.js"
+    />
+    <link rel="preload" as="script" crossorigin="anonymous" href="/packs/js/features/compose.js" />
+    <link
+      rel="preload"
+      as="script"
+      crossorigin="anonymous"
+      href="/packs/js/features/home_timeline.js"
+    />
+    <link
+      rel="preload"
+      as="script"
+      crossorigin="anonymous"
+      href="/packs/js/features/notifications.js"
+    />
+    <script id="initial-state" type="application/json">
+      <%= initial_state(@token, @user, @custom_emojis) %>
+    </script>
+
+    <script src="/packs/js/core/common.js">
+    </script>
+    <link rel="stylesheet" media="all" href="/packs/css/core/common.css" />
+
+    <script src="/packs/js/flavours/glitch/common.js">
+    </script>
+    <link rel="stylesheet" media="all" href="/packs/css/flavours/glitch/common.css" />
+
+    <script src="/packs/js/flavours/glitch/home.js">
+    </script>
+  </head>
+  <body class="app-body no-reduce-motion system-font">
+    <div class="app-holder" data-props="{&quot;locale&quot;:&quot;en&quot;}" id="mastodon"></div>
+  </body>
+</html>

lib/pleroma/web/templates/masto_fe/glitchsoc.index.html.eex

@@ -1,35 +0,0 @@
-<!DOCTYPE html>
-<html lang='en'>
-<head>
-<meta charset='utf-8'>
-<meta content='width=device-width, initial-scale=1' name='viewport'>
-<title>
-<%= Config.get([:instance, :name]) %>
-</title>
-<link rel="icon" type="image/png" href="/favicon.png"/>
-<link rel="manifest" type="applicaton/manifest+json" href="<%= Routes.masto_fe_path(Pleroma.Web.Endpoint, :manifest) %>" />
-
-<meta name="theme-color" content="<%= Config.get([:manifest, :theme_color]) %>" />
-
-<script crossorigin='anonymous' src="/packs/js/locales.js"></script>
-<script crossorigin='anonymous' src="/packs/js/locales/glitch/en.js"></script>
-
-<link rel='preload' as='script' crossorigin='anonymous' href='/packs/js/features/getting_started.js'>
-<link rel='preload' as='script' crossorigin='anonymous' href='/packs/js/features/compose.js'>
-<link rel='preload' as='script' crossorigin='anonymous' href='/packs/js/features/home_timeline.js'>
-<link rel='preload' as='script' crossorigin='anonymous' href='/packs/js/features/notifications.js'>
-<script id='initial-state' type='application/json'><%= initial_state(@token, @user, @custom_emojis) %></script>
-
-<script src="/packs/js/core/common.js"></script>
-<link rel="stylesheet" media="all" href="/packs/css/core/common.css" />
-
-<script src="/packs/js/flavours/glitch/common.js"></script>
-<link rel="stylesheet" media="all" href="/packs/css/flavours/glitch/common.css" />
-
-<script src="/packs/js/flavours/glitch/home.js"></script>
-</head>
-<body class='app-body no-reduce-motion system-font'>
-  <div class='app-holder' data-props='{&quot;locale&quot;:&quot;en&quot;}' id='mastodon'>
-  </div>
-</body>
-</html>

lib/pleroma/web/templates/o_auth/mfa/recovery.html.eex

@@ -1,15 +1,15 @@
 <div>
-  <%= if get_flash(@conn, :info) do %>
+  <%= if Flash.get(@flash, :info) do %>
-  <p class="alert alert-info" role="alert"><%= get_flash(@conn, :info) %></p>
+  <p class="alert alert-info" role="alert"><%= Flash.get(@flash, :info) %></p>
   <% end %>
-  <%= if get_flash(@conn, :error) do %>
+  <%= if Flash.get(@flash, :error) do %>
-  <p class="alert alert-danger" role="alert"><%= get_flash(@conn, :error) %></p>
+  <p class="alert alert-danger" role="alert"><%= Flash.get(@flash, :error) %></p>
   <% end %>
   <div class="panel-heading">
       <%= Gettext.dpgettext("static_pages", "mfa recover page title", "Two-factor recovery") %>
   </div>
   <div class="panel-content">
-      <%= form_for @conn, Routes.mfa_verify_path(@conn, :verify), [as: "mfa"], fn f -> %>
+      <%= form_for @conn, ~p"/oauth/mfa/verify", [as: "mfa"], fn f -> %>
       <div class="input">
         <%= label f, :code, Gettext.dpgettext("static_pages", "mfa recover recovery code prompt", "Recovery code") %>
         <%= text_input f, :code, [autocomplete: false, autocorrect: "off", autocapitalize: "off", autofocus: true, spellcheck: false] %>
@@ -21,7 +21,7 @@
 
       <%= submit Gettext.dpgettext("static_pages", "mfa recover verify recovery code button", "Verify") %>
       <% end %>
-      <a href="<%= Routes.mfa_path(@conn, :show, %{challenge_type: "totp", mfa_token: @mfa_token, state: @state, redirect_uri: @redirect_uri}) %>">
+      <a href="<%= ~p"/oauth/mfa?#{[challenge_type: "totp", mfa_token: @mfa_token, state: @state, redirect_uri: @redirect_uri]}" %>">
         <%= Gettext.dpgettext("static_pages", "mfa recover use 2fa code link", "Enter a two-factor code") %>
       </a>
 

lib/pleroma/web/templates/o_auth/mfa/totp.html.eex

@@ -1,15 +1,15 @@
 <div>
-  <%= if get_flash(@conn, :info) do %>
+  <%= if Flash.get(@flash, :info) do %>
-  <p class="alert alert-info" role="alert"><%= get_flash(@conn, :info) %></p>
+  <p class="alert alert-info" role="alert"><%= Flash.get(@flash, :info) %></p>
   <% end %>
-  <%= if get_flash(@conn, :error) do %>
+  <%= if Flash.get(@flash, :error) do %>
-  <p class="alert alert-danger" role="alert"><%= get_flash(@conn, :error) %></p>
+  <p class="alert alert-danger" role="alert"><%= Flash.get(@flash, :error) %></p>
   <% end %>
   <div class="panel-heading">
       <%= Gettext.dpgettext("static_pages", "mfa auth page title", "Two-factor authentication") %>
   </div>
   <div class="panel-content">
-      <%= form_for @conn, Routes.mfa_verify_path(@conn, :verify), [as: "mfa"], fn f -> %>
+      <%= form_for @conn, ~p"/oauth/mfa/verify", [as: "mfa"], fn f -> %>
       <div class="input">
         <%= label f, :code, Gettext.dpgettext("static_pages", "mfa auth code prompt", "Authentication code") %>
         <%= text_input f, :code, [autocomplete: "one-time-code", autocorrect: "off", autocapitalize: "off", autofocus: true, pattern: "[0-9]*", spellcheck: false] %>
@@ -21,7 +21,7 @@
 
       <%= submit Gettext.dpgettext("static_pages", "mfa auth verify code button", "Verify") %>
       <% end %>
-      <a href="<%= Routes.mfa_path(@conn, :show, %{challenge_type: "recovery", mfa_token: @mfa_token, state: @state, redirect_uri: @redirect_uri}) %>">
+      <a href="<%= ~p"/oauth/mfa?#{[challenge_type: "recovery", mfa_token: @mfa_token, state: @state, redirect_uri: @redirect_uri]}" %>">
         <%= Gettext.dpgettext("static_pages", "mfa auth page use recovery code link", "Enter a two-factor recovery code") %>
       </a>
   </div>

lib/pleroma/web/templates/o_auth/o_auth/consumer.html.eex

@@ -1,6 +1,6 @@
 <h2><%= Gettext.dpgettext("static_pages", "oauth external provider page title", "Sign in with external provider") %></h2>
 
-<%= form_for @conn, Routes.o_auth_path(@conn, :prepare_request), [as: "authorization", method: "get"], fn f -> %>
+<%= form_for @conn, ~p"/oauth/prepare_request", [as: "authorization", method: "get"], fn f -> %>
   <div style="display: none">
     <%= render @view_module, "_scopes.html", Map.merge(assigns, %{form: f}) %>
   </div>

lib/pleroma/web/templates/o_auth/o_auth/register.html.eex

@@ -1,14 +1,14 @@
-<%= if get_flash(@conn, :info) do %>
+<%= if Flash.get(@flash, :info) do %>
-  <p class="alert alert-info" role="alert"><%= get_flash(@conn, :info) %></p>
+  <p class="alert alert-info" role="alert"><%= Flash.get(@flash, :info) %></p>
 <% end %>
-<%= if get_flash(@conn, :error) do %>
+<%= if Flash.get(@flash, :error) do %>
-  <p class="alert alert-danger" role="alert"><%= get_flash(@conn, :error) %></p>
+  <p class="alert alert-danger" role="alert"><%= Flash.get(@flash, :error) %></p>
 <% end %>
 
 <h2><%= Gettext.dpgettext("static_pages", "oauth register page title", "Registration Details") %></h2>
 
 <p><%= Gettext.dpgettext("static_pages", "oauth register page fill form prompt", "If you'd like to register a new account, please provide the details below.") %></p>
-<%= form_for @conn, Routes.o_auth_path(@conn, :register), [as: "authorization"], fn f -> %>
+<%= form_for @conn, ~p"/oauth/register", [as: "authorization"], fn f -> %>
 
 <div class="input">
   <%= label f, :nickname, Gettext.dpgettext("static_pages", "oauth register page nickname prompt", "Nickname") %>

lib/pleroma/web/templates/o_auth/o_auth/show.html.eex

@@ -1,11 +1,11 @@
-<%= if get_flash(@conn, :info) do %>
+<%= if Flash.get(@flash, :info) do %>
-<p class="alert alert-info" role="alert"><%= get_flash(@conn, :info) %></p>
+<p class="alert alert-info" role="alert"><%= Flash.get(@flash, :info) %></p>
 <% end %>
-<%= if get_flash(@conn, :error) do %>
+<%= if Flash.get(@flash, :error) do %>
-<p class="alert alert-danger" role="alert"><%= get_flash(@conn, :error) %></p>
+<p class="alert alert-danger" role="alert"><%= Flash.get(@flash, :error) %></p>
 <% end %>
 
-<%= form_for @conn, Routes.o_auth_path(@conn, :authorize), [as: "authorization"], fn f -> %>
+<%= form_for @conn, ~p"/oauth/authorize", [as: "authorization"], fn f -> %>
 
 <%= if @user do %>
   <div class="account-header">

lib/pleroma/web/templates/static_fe/static_fe/profile.html.eex

@@ -36,7 +36,7 @@
         </div>
       </div>
       <div class="remote-follow">
-        <form method="POST" action="<%= Helpers.util_path(@conn, :remote_subscribe) %>">
+        <form method="POST" action="<%= ~p"/main/ostatus" %>">
           <input type="hidden" name="nickname" value="<%= @user.nickname %>">
           <input type="hidden" name="profile" value="">
           <button type="submit" class="button-default"><%= Gettext.dpgettext("static_pages", "static fe profile page remote follow button", "Remote follow") %></button>

lib/pleroma/web/templates/twitter_api/password/reset.html.eex

@@ -1,5 +1,5 @@
 <h2>Password Reset for <%= @user.nickname %></h2>
-<%= form_for @conn, Routes.reset_password_path(@conn, :do_reset), [as: "data"], fn f -> %>
+<%= form_for @conn, ~p"/api/v1/pleroma/password_reset", [as: "data"], fn f -> %>
   <div class="form-row">
     <%= label f, :password, Gettext.dpgettext("static_pages", "password reset form password prompt", "Password") %>
     <%= password_input f, :password %>

lib/pleroma/web/templates/twitter_api/remote_follow/follow.html.eex

@@ -4,7 +4,7 @@
     <h2><%= Gettext.dpgettext("static_pages", "remote follow header", "Remote follow") %></h2>
     <img height="128" width="128" src="<%= avatar_url(@followee) %>">
     <p><%= @followee.nickname %></p>
-    <%= form_for @conn, Routes.remote_follow_path(@conn, :do_follow), [as: "user"], fn f -> %>
+    <%= form_for @conn, ~p"/ostatus_subscribe", [as: "user"], fn f -> %>
     <%= hidden_input f, :id, value: @followee.id %>
     <%= submit Gettext.dpgettext("static_pages", "remote follow authorization button", "Authorize") %>
     <% end %>