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

CHANGELOG.md

@@ -10,6 +10,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - **Breaking**: MDII uploader
 
 ### Changed
+- **Breaking:** Pleroma won't start if it detects unapplied migrations
 - **Breaking:** attachments are removed along with statuses when there are no other references to it
 - **Breaking:** Elixir >=1.8 is now required (was >= 1.7)
 - **Breaking:** attachment links (`config :pleroma, :instance, no_attachment_links` and `config :pleroma, Pleroma.Upload, link_name`) disabled by default
@@ -43,6 +44,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Mastodon API, streaming: Add `pleroma.direct_conversation_id` to the `conversation` stream event payload.
 - Admin API: Render whole status in grouped reports
 - Mastodon API: User timelines will now respect blocks, unless you are getting the user timeline of somebody you blocked (which would be empty otherwise).
+- Mastodon API: Favoriting / Repeating a post multiple times will now return the identical response every time. Before, executing that action twice would return an error ("already favorited") on the second try.
 </details>
 
 ### Added
@@ -92,6 +94,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Captcha: Support native provider
 - Captcha: Enable by default
 - Mastodon API: Add support for `account_id` param to filter notifications by the account
+- Mastodon API: Add `emoji_reactions` property to Statuses
+- Mastodon API: Change emoji reaction reply format
+- Notifications: Added `pleroma:emoji_reaction` notification type
 </details>
 
 ### Fixed

benchmarks/load_testing/generator.ex

@@ -142,6 +142,48 @@ defmodule Pleroma.LoadTesting.Generator do
     CommonAPI.post(Enum.random(users), post)
   end
 
+  def generate_power_intervals(opts \\ []) do
+    count = Keyword.get(opts, :count, 20)
+    power = Keyword.get(opts, :power, 2)
+    IO.puts("Generating #{count} intervals for a power #{power} series...")
+    counts = Enum.map(1..count, fn n -> :math.pow(n, power) end)
+    sum = Enum.sum(counts)
+
+    densities =
+      Enum.map(counts, fn c ->
+        c / sum
+      end)
+
+    densities
+    |> Enum.reduce(0, fn density, acc ->
+      if acc == 0 do
+        [{0, density}]
+      else
+        [{_, lower} | _] = acc
+        [{lower, lower + density} | acc]
+      end
+    end)
+    |> Enum.reverse()
+  end
+
+  def generate_tagged_activities(opts \\ []) do
+    tag_count = Keyword.get(opts, :tag_count, 20)
+    users = Keyword.get(opts, :users, Repo.all(User))
+    activity_count = Keyword.get(opts, :count, 200_000)
+
+    intervals = generate_power_intervals(count: tag_count)
+
+    IO.puts(
+      "Generating #{activity_count} activities using #{tag_count} different tags of format `tag_n`, starting at tag_0"
+    )
+
+    Enum.each(1..activity_count, fn _ ->
+      random = :rand.uniform()
+      i = Enum.find_index(intervals, fn {lower, upper} -> lower <= random && upper > random end)
+      CommonAPI.post(Enum.random(users), %{"status" => "a post with the tag #tag_#{i}"})
+    end)
+  end
+
   defp do_generate_activity_with_mention(user, users) do
     mentions_cnt = Enum.random([2, 3, 4, 5])
     with_user = Enum.random([true, false])

benchmarks/mix/tasks/pleroma/benchmarks/tags.ex

@@ -0,0 +1,87 @@
+defmodule Mix.Tasks.Pleroma.Benchmarks.Tags do
+  use Mix.Task
+  alias Pleroma.Repo
+  alias Pleroma.LoadTesting.Generator
+  import Ecto.Query
+
+  def run(_args) do
+    Mix.Pleroma.start_pleroma()
+    activities_count = Repo.aggregate(from(a in Pleroma.Activity), :count, :id)
+
+    if activities_count == 0 do
+      IO.puts("Did not find any activities, cleaning and generating")
+      clean_tables()
+      Generator.generate_users(users_max: 10)
+      Generator.generate_tagged_activities()
+    else
+      IO.puts("Found #{activities_count} activities, won't generate new ones")
+    end
+
+    tags = Enum.map(0..20, fn i -> {"For #tag_#{i}", "tag_#{i}"} end)
+
+    Enum.each(tags, fn {_, tag} ->
+      query =
+        from(o in Pleroma.Object,
+          where: fragment("(?)->'tag' \\? (?)", o.data, ^tag)
+        )
+
+      count = Repo.aggregate(query, :count, :id)
+      IO.puts("Database contains #{count} posts tagged with #{tag}")
+    end)
+
+    user = Repo.all(Pleroma.User) |> List.first()
+
+    Benchee.run(
+      %{
+        "Hashtag fetching, any" => fn tags ->
+          Pleroma.Web.MastodonAPI.TimelineController.hashtag_fetching(
+            %{
+              "any" => tags
+            },
+            user,
+            false
+          )
+        end,
+        # Will always return zero results because no overlapping hashtags are generated.
+        "Hashtag fetching, all" => fn tags ->
+          Pleroma.Web.MastodonAPI.TimelineController.hashtag_fetching(
+            %{
+              "all" => tags
+            },
+            user,
+            false
+          )
+        end
+      },
+      inputs:
+        tags
+        |> Enum.map(fn {_, v} -> v end)
+        |> Enum.chunk_every(2)
+        |> Enum.map(fn tags -> {"For #{inspect(tags)}", tags} end),
+      time: 5
+    )
+
+    Benchee.run(
+      %{
+        "Hashtag fetching" => fn tag ->
+          Pleroma.Web.MastodonAPI.TimelineController.hashtag_fetching(
+            %{
+              "tag" => tag
+            },
+            user,
+            false
+          )
+        end
+      },
+      inputs: tags,
+      time: 5
+    )
+  end
+
+  defp clean_tables do
+    IO.puts("Deleting old data...\n")
+    Ecto.Adapters.SQL.query!(Repo, "TRUNCATE users CASCADE;")
+    Ecto.Adapters.SQL.query!(Repo, "TRUNCATE activities CASCADE;")
+    Ecto.Adapters.SQL.query!(Repo, "TRUNCATE objects CASCADE;")
+  end
+end

config/config.exs

@@ -112,7 +112,6 @@ config :pleroma, :emoji,
   shortcode_globs: ["/emoji/custom/**/*.png"],
   pack_extensions: [".png", ".gif"],
   groups: [
-    # Put groups that have higher priority than defaults here. Example in `docs/config/custom_emoji.md`
     Custom: ["/emoji/*.png", "/emoji/**/*.png"]
   ],
   default_manifest: "https://git.pleroma.social/pleroma/emoji-index/raw/master/index.json",
@@ -266,7 +265,6 @@ config :pleroma, :instance,
   remote_post_retention_days: 90,
   skip_thread_containment: true,
   limit_to_local_content: :unauthenticated,
-  dynamic_configuration: false,
   user_bio_length: 5000,
   user_name_length: 100,
   max_account_fields: 10,
@@ -503,7 +501,8 @@ config :pleroma, Oban,
     mailer: 10,
     transmogrifier: 20,
     scheduled_activities: 10,
-    background: 5
+    background: 5,
+    attachments_cleanup: 5
   ]
 
 config :pleroma, :workers,
@@ -620,6 +619,8 @@ config :pleroma, :web_cache_ttl,
 
 config :pleroma, :modules, runtime_dir: "instance/modules"
 
+config :pleroma, configurable_from_database: false
+
 config :swarm, node_blacklist: [~r/myhtml_.*$/]
 # Import environment specific config. This must remain at the bottom
 # of this file so it overrides the configuration defined above.

config/releases.exs

@@ -6,6 +6,8 @@ config :pleroma, :modules, runtime_dir: "/var/lib/pleroma/modules"
 
 config_path = System.get_env("PLEROMA_CONFIG_PATH") || "/etc/pleroma/config.exs"
 
+config :pleroma, release: true, config_path: config_path
+
 if File.exists?(config_path) do
   import_config config_path
 else
@@ -18,3 +20,12 @@ else
 
   IO.puts(warning)
 end
+
+exported_config =
+  config_path
+  |> Path.dirname()
+  |> Path.join("prod.exported_from_db.secret.exs")
+
+if File.exists?(exported_config) do
+  import_config exported_config
+end

docs/API/admin_api.md

@@ -665,27 +665,16 @@ Note: Available `:permission_group` is currently moderator and admin. 404 is ret
     - 404 Not Found `"Not found"`
   - On success: 200 OK `{}`
 
-## `GET /api/pleroma/admin/config/migrate_to_db`
-
-### Run mix task pleroma.config migrate_to_db
-
-Copy settings on key `:pleroma` to DB.
-
-- Params: none
-- Response:
-
-```json
-{}
-```
-
 ## `GET /api/pleroma/admin/config/migrate_from_db`
 
 ### Run mix task pleroma.config migrate_from_db
 
-Copy all settings from DB to `config/prod.exported_from_db.secret.exs` with deletion from DB.
+Copies all settings from database to `config/{env}.exported_from_db.secret.exs` with deletion from the table. Where `{env}` is the environment in which `pleroma` is running.
 
 - Params: none
 - Response:
+  - On failure:
+    - 400 Bad Request `"To use this endpoint you need to enable configuration from database."`
 
 ```json
 {}
@@ -693,20 +682,24 @@ Copy all settings from DB to `config/prod.exported_from_db.secret.exs` with dele
 
 ## `GET /api/pleroma/admin/config`
 
-### List config settings
+### Get list of merged default settings with saved in database.
 
-List config settings only works with `:pleroma => :instance => :dynamic_configuration` setting to `true`.
+**Only works when configuration from database is enabled.**
 
-- Params: none
+- Params:
+  - `only_db`: true (*optional*, get only saved in database settings)
 - Response:
+  - On failure:
+    - 400 Bad Request `"To use this endpoint you need to enable configuration from database."`
+    - 400 Bad Request `"To use configuration from database migrate your settings to database."`
 
 ```json
 {
   configs: [
     {
-      "group": string,
+      "group": ":pleroma",
-      "key": string or string with leading `:` for atoms,
+      "key": "Pleroma.Upload",
-      "value": string or {} or [] or {"tuple": []}
+      "value": []
      }
   ]
 }
@@ -716,44 +709,107 @@ List config settings only works with `:pleroma => :instance => :dynamic_configur
 
 ### Update config settings
 
-Updating config settings only works with `:pleroma => :instance => :dynamic_configuration` setting to `true`.
+**Only works when configuration from database is enabled.**
-Module name can be passed as string, which starts with `Pleroma`, e.g. `"Pleroma.Upload"`.
-Atom keys and values can be passed with `:` in the beginning, e.g. `":upload"`.
-Tuples can be passed as `{"tuple": ["first_val", Pleroma.Module, []]}`.
-`{"tuple": ["some_string", "Pleroma.Some.Module", []]}` will be converted to `{"some_string", Pleroma.Some.Module, []}`.
-Keywords can be passed as lists with 2 child tuples, e.g.
-`[{"tuple": ["first_val", Pleroma.Module]}, {"tuple": ["second_val", true]}]`.
 
-If value contains list of settings `[subkey: val1, subkey2: val2, subkey3: val3]`, it's possible to remove only subkeys instead of all settings passing `subkeys` parameter. E.g.:
+Some modifications are necessary to save the config settings correctly:
-{"group": "pleroma", "key": "some_key", "delete": "true", "subkeys": [":subkey", ":subkey3"]}.
 
-Compile time settings (need instance reboot):
+- strings which start with `Pleroma.`, `Phoenix.`, `Tesla.` or strings like `Oban`, `Ueberauth` will be converted to modules;
-- all settings by this keys:
+```
+"Pleroma.Upload" -> Pleroma.Upload
+"Oban" -> Oban
+```
+- strings starting with `:` will be converted to atoms;
+```
+":pleroma" -> :pleroma
+```
+- objects with `tuple` key and array value will be converted to tuples;
+```
+{"tuple": ["string", "Pleroma.Upload", []]} -> {"string", Pleroma.Upload, []}
+```
+- arrays with *tuple objects* will be converted to keywords;
+```
+[{"tuple": [":key1", "value"]}, {"tuple": [":key2", "value"]}] -> [key1: "value", key2: "value"]
+```
+
+Most of the settings will be applied in `runtime`, this means that you don't need to restart the instance. But some settings are applied in `compile time` and require a reboot of the instance, such as:
+- all settings inside these keys:
   - `:hackney_pools`
   - `:chat`
-  - `Pleroma.Web.Endpoint`
+- partially settings inside these keys:
-  - `Pleroma.Repo`
+  - `:seconds_valid` in `Pleroma.Captcha`
-- part settings:
+  - `:proxy_remote` in `Pleroma.Upload`
-  - `Pleroma.Captcha` -> `:seconds_valid`
+  - `:upload_limit` in `:instance`
-  - `Pleroma.Upload` -> `:proxy_remote`
-  - `:instance` -> `:upload_limit`
 
 - Params:
-  - `configs` => [
+  - `configs` - array of config objects
-    - `group` (string)
+  - config object params:
-    - `key` (string or string with leading `:` for atoms)
+    - `group` - string (**required**)
-    - `value` (string, [], {} or {"tuple": []})
+    - `key` - string (**required**)
-    - `delete` = true (optional, if parameter must be deleted)
+    - `value` - string, [], {} or {"tuple": []} (**required**)
-    - `subkeys` [(string with leading `:` for atoms)] (optional, works only if `delete=true` parameter is passed, otherwise will be ignored)
+    - `delete` - true (*optional*, if setting must be deleted)
-  ]
+    - `subkeys` - array of strings (*optional*, only works when `delete=true` parameter is passed, otherwise will be ignored)
 
-- Request (example):
+*When a value have several nested settings, you can delete only some nested settings by passing a parameter `subkeys`, without deleting all settings by key.*
+```
+[subkey: val1, subkey2: val2, subkey3: val3] \\ initial value
+{"group": ":pleroma", "key": "some_key", "delete": true, "subkeys": [":subkey", ":subkey3"]} \\ passing json for deletion
+[subkey2: val2] \\ value after deletion
+```
+
+*Most of the settings can be partially updated through merge old values with new values, except settings value of which is list or is not keyword.*
+
+Example of setting without keyword in value:
+```elixir
+config :tesla, :adapter, Tesla.Adapter.Hackney
+```
+
+List of settings which support only full update by key:
+```elixir
+@full_key_update [
+    {:pleroma, :ecto_repos},
+    {:quack, :meta},
+    {:mime, :types},
+    {:cors_plug, [:max_age, :methods, :expose, :headers]},
+    {:auto_linker, :opts},
+    {:swarm, :node_blacklist},
+    {:logger, :backends}
+  ]
+```
+
+List of settings which support only full update by subkey:
+```elixir
+@full_subkey_update [
+    {:pleroma, :assets, :mascots},
+    {:pleroma, :emoji, :groups},
+    {:pleroma, :workers, :retries},
+    {:pleroma, :mrf_subchain, :match_actor},
+    {:pleroma, :mrf_keyword, :replace}
+  ]
+```
+
+*Settings without explicit key must be sended in separate config object params.*
+```elixir
+config :quack,
+  level: :debug,
+  meta: [:all],
+  ...
+```
+```json
+{
+  configs: [
+    {"group": ":quack", "key": ":level", "value": ":debug"},
+    {"group": ":quack", "key": ":meta", "value": [":all"]},
+    ...
+  ]
+}
+```
+- Request:
 
 ```json
 {
   configs: [
     {
-      "group": "pleroma",
+      "group": ":pleroma",
       "key": "Pleroma.Upload",
       "value": [
         {"tuple": [":uploader", "Pleroma.Uploaders.Local"]},
@@ -763,7 +819,7 @@ Compile time settings (need instance reboot):
         {"tuple": [":proxy_opts", [
           {"tuple": [":redirect_on_failure", false]},
           {"tuple": [":max_body_length", 1048576]},
-          {"tuple": [":http": [
+          {"tuple": [":http", [
             {"tuple": [":follow_redirect", true]},
             {"tuple": [":pool", ":upload"]},
           ]]}
@@ -779,19 +835,53 @@ Compile time settings (need instance reboot):
 ```
 
 - Response:
-
+  - On failure:
+    - 400 Bad Request `"To use this endpoint you need to enable configuration from database."`
 ```json
 {
   configs: [
     {
-      "group": string,
+      "group": ":pleroma",
-      "key": string or string with leading `:` for atoms,
+      "key": "Pleroma.Upload",
-      "value": string or {} or [] or {"tuple": []}
+      "value": [...]
      }
   ]
 }
 ```
 
+## ` GET /api/pleroma/admin/config/descriptions`
+
+### Get JSON with config descriptions.
+Loads json generated from `config/descriptions.exs`.
+
+- Params: none
+- Response:
+
+```json
+[{
+    "group": ":pleroma", // string
+    "key": "ModuleName", // string
+    "type": "group", // string or list with possible values,
+    "description": "Upload general settings", // string
+    "children": [
+      {
+        "key": ":uploader", // string or module name `Pleroma.Upload`
+        "type": "module",
+        "description": "Module which will be used for uploads",
+        "suggestions": ["module1", "module2"]
+      },
+      {
+        "key": ":filters",
+        "type": ["list", "module"],
+        "description": "List of filter modules for uploads",
+        "suggestions": [
+          "module1", "module2", "module3"
+        ]
+      }
+    ]
+}]
+```
+
 ## `GET /api/pleroma/admin/moderation_log`
 
 ### Get moderation log

docs/API/differences_in_mastoapi_responses.md

@@ -29,6 +29,7 @@ Has these additional fields under the `pleroma` object:
 - `spoiler_text`: a map consisting of alternate representations of the `spoiler_text` property with the key being it's mimetype. Currently the only alternate representation supported is `text/plain`
 - `expires_at`: a datetime (iso8601) that states when the post will expire (be deleted automatically), or empty if the post won't expire
 - `thread_muted`: true if the thread the post belongs to is muted
+- `emoji_reactions`: A list with emoji / reaction count tuples. Contains no information about the reacting users, for that use the `emoji_reactions_by` endpoint.
 
 ## Attachments
 
@@ -100,6 +101,14 @@ The `type` value is `move`. Has an additional field:
 
 - `target`: new account
 
+### EmojiReaction Notification
+
+The `type` value is `pleroma:emoji_reaction`. Has these fields:
+
+- `emoji`: The used emoji
+- `account`: The account of the user who reacted
+- `status`: The status that was reacted on
+
 ## GET `/api/v1/notifications`
 
 Accepts additional parameters:

docs/API/pleroma_api.md

@@ -451,11 +451,11 @@ Emoji reactions work a lot like favourites do. They make it possible to react to
 * Method: `GET`
 * Authentication: optional
 * Params: None
-* Response: JSON, a map of emoji to account list mappings.
+* Response: JSON, a list of emoji/account list tuples, sorted by emoji insertion date, in ascending order, e.g, the first emoji in the list is the oldest.
 * Example Response:
 ```json
-{
+[
-  "😀" => [{"id" => "xyz.."...}, {"id" => "zyx..."}],
+  ["😀", [{"id" => "xyz.."...}, {"id" => "zyx..."}]],
-  "🗡" => [{"id" => "abc..."}] 
+  ["☕", [{"id" => "abc..."}]]
-}
+]
 ```

docs/admin/config.md

@@ -0,0 +1,79 @@
+# Configuring instance
+You can configure your instance from admin interface. You need account with admin rights and little change in config file, which will allow settings configuration from database.
+
+```elixir
+config :pleroma, configurable_from_database: true
+```
+
+## How it works
+Settings are stored in database and are applied in `runtime` after each change. Most of the settings take effect immediately, except some, which need instance reboot. These settings are needed in `compile time`, that's why settings are duplicated to the file.
+
+File with duplicated settings is located in `config/{env}.exported_from_db.exs` if pleroma is runned from source. For prod env it will be `config/prod.exported_from_db.exs`.
+
+For releases: `/etc/pleroma/prod.exported_from_db.secret.exs` or `PLEROMA_CONFIG_PATH/prod.exported_from_db.exs`.
+
+## How to set it up
+You need to migrate your existing settings to the database. This task will migrate only added by user settings.
+For example you add settings to `prod.secret.exs` file, only these settings will be migrated to database. For release it will be `/etc/pleroma/config.exs` or `PLEROMA_CONFIG_PATH`.
+You can do this with mix task (all config files will remain untouched):
+
+```sh tab="OTP"
+ ./bin/pleroma_ctl config migrate_to_db
+```
+
+```sh tab="From Source"
+mix pleroma.config migrate_to_db
+```
+
+Now you can change settings in admin interface. After each save, settings from database are duplicated to the `config/{env}.exported_from_db.exs` file.
+
+<span style="color:red">**ATTENTION**</span>
+
+**<span style="color:red">Be careful while changing the settings. Every inaccurate configuration change can break the federation or the instance load.</span>**
+
+*Compile time settings, which require instance reboot and can break instance loading:*
+- all settings inside these keys:
+  - `:hackney_pools`
+  - `:chat`
+- partially settings inside these keys:
+  - `:seconds_valid` in `Pleroma.Captcha`
+  - `:proxy_remote` in `Pleroma.Upload`
+  - `:upload_limit` in `:instance`
+
+## How to dump settings from database to file
+
+*Adding `-d` flag will delete migrated settings from database table.*
+
+```sh tab="OTP"
+ ./bin/pleroma_ctl config migrate_from_db [-d]
+```
+
+```sh tab="From Source"
+mix pleroma.config migrate_from_db [-d]
+```
+
+
+## How to completely remove it
+
+1. Truncate or delete all values from `config` table
+```sql
+TRUNCATE TABLE config;
+```
+2. Delete `config/{env}.exported_from_db.exs`.
+
+For `prod` env:
+```bash
+cd /opt/pleroma
+cp config/prod.exported_from_db.exs config/exported_from_db.back
+rm -rf config/prod.exported_from_db.exs
+```
+*If you don't want to backup settings, you can skip step with `cp` command.*
+
+3. Set configurable_from_database to `false`.
+```elixir
+config :pleroma, configurable_from_database: false
+```
+4. Restart pleroma instance
+```bash
+sudo service pleroma restart
+```

docs/administration/CLI_tasks/config.md

@@ -18,11 +18,11 @@ mix pleroma.config migrate_to_db
 
 ## Transfer config from DB to `config/env.exported_from_db.secret.exs`
 
+To delete transfered settings from database optional flag `-d` can be used. <env> is `prod` by default.
 ```sh tab="OTP"
- ./bin/pleroma_ctl config migrate_from_db <env>
+ ./bin/pleroma_ctl config migrate_from_db [--env=<env>] [-d]
 ```
 
 ```sh tab="From Source"
-mix pleroma.config migrate_from_db <env>
+mix pleroma.config migrate_from_db [--env=<env>] [-d]
 ```
-

docs/configuration/cheatsheet.md

@@ -70,11 +70,6 @@ You shouldn't edit the base config directly to avoid breakages and merge conflic
 * `account_field_value_length`: An account field value maximum length (default: `2048`).
 * `external_user_synchronization`: Enabling following/followers counters synchronization for external users.
 
-!!! danger
-    This is a Work In Progress, not usable just yet
-
-* `dynamic_configuration`: Allow transferring configuration to DB with the subsequent customization from Admin api.
-
 ## Federation
 ### MRF policies
 
@@ -841,3 +836,7 @@ config :auto_linker,
 ## Custom Runtime Modules (`:modules`)
 
 * `runtime_dir`: A path to custom Elixir modules (such as MRF policies).
+
+
+## :configurable_from_database
+Enable/disable configuration from database.

docs/installation/openbsd_en.md

@@ -1,6 +1,6 @@
 # Installing on OpenBSD
 
-This guide describes the installation and configuration of pleroma (and the required software to run it) on a single OpenBSD 6.4 server.
+This guide describes the installation and configuration of pleroma (and the required software to run it) on a single OpenBSD 6.6 server.
 
 For any additional information regarding commands and configuration files mentioned here, check the man pages [online](https://man.openbsd.org/) or directly on your server with the man command.
 
@@ -40,7 +40,12 @@ Enter a shell as the \_pleroma user. As root, run `su _pleroma -;cd`. Then clone
 
 #### PostgreSQL
 Start a shell as the \_postgresql user (as root run `su _postgresql -` then run the `initdb` command to initialize postgresql:
-If you wish to not use the default location for postgresql's data (/var/postgresql/data), add the following switch at the end of the command: `-D <path>` and modify the `datadir` variable in the /etc/rc.d/postgresql script.
+You will need to specify pgdata directory to the default (/var/postgresql/data) with the `-D <path>` and set the user to postgres with the `-U <username>` flag. This can be done as follows:
+
+```
+initdb -D /var/postgresql/data -U postgres
+```
+If you are not using the default directory, you will have to update the `datadir` variable in the /etc/rc.d/postgresql script.
 
 When this is done, enable postgresql so that it starts on boot and start it. As root, run:
 ```
@@ -81,7 +86,6 @@ server "default" {
 }
 
 types {
-	include "/usr/share/misc/mime.types"
 }
 ```
 Do not forget to change *<IPv4/6 address\>* to your server's address(es). If httpd should only listen on one protocol family, comment one of the two first *listen* options.
@@ -103,7 +107,7 @@ Insert the following configuration in /etc/acme-client.conf:
 
 authority letsencrypt-<domain name> {
 	#agreement url "https://letsencrypt.org/documents/LE-SA-v1.2-November-15-2017.pdf"
-	api url "https://acme-v01.api.letsencrypt.org/directory"
+	api url "https://acme-v02.api.letsencrypt.org/directory"
 	account key "/etc/acme/letsencrypt-privkey-<domain name>.pem"
 }
 
@@ -222,7 +226,7 @@ Then follow the main installation guide:
   * run `mix deps.get`
   * run `mix pleroma.instance gen` and enter your instance's information when asked
   * copy config/generated\_config.exs to config/prod.secret.exs. The default values should be sufficient but you should edit it and check that everything seems OK.
-  * exit your current shell back to a root one and run `psql -U postgres -f /home/_pleroma/config/setup_db.psql` to setup the database.
+  * exit your current shell back to a root one and run `psql -U postgres -f /home/_pleroma/pleroma/config/setup_db.psql` to setup the database.
   * return to a \_pleroma shell into pleroma's installation directory (`su _pleroma -;cd ~/pleroma`) and run `MIX_ENV=prod mix ecto.migrate`
 
 As \_pleroma in /home/\_pleroma/pleroma, you can now run `LC_ALL=en_US.UTF-8 MIX_ENV=prod mix phx.server` to start your instance.
@@ -230,3 +234,11 @@ In another SSH session/tmux window, check that it is working properly by running
 
 ##### Starting pleroma at boot
 An rc script to automatically start pleroma at boot hasn't been written yet, it can be run in a tmux session (tmux is in base).
+
+
+#### Create administrative user
+
+If your instance is up and running, you can create your first user with administrative rights with the following command as the \_pleroma user.
+```
+LC_ALL=en_US.UTF-8 MIX_ENV=prod mix pleroma.user new <username> <your@emailaddress> --admin
+```

lib/mix/tasks/pleroma/config.ex

@@ -4,71 +4,144 @@
 
 defmodule Mix.Tasks.Pleroma.Config do
   use Mix.Task
+
   import Mix.Pleroma
+
+  alias Pleroma.ConfigDB
   alias Pleroma.Repo
-  alias Pleroma.Web.AdminAPI.Config
+
   @shortdoc "Manages the location of the config"
   @moduledoc File.read!("docs/administration/CLI_tasks/config.md")
+
   def run(["migrate_to_db"]) do
     start_pleroma()
-
+    migrate_to_db()
-    if Pleroma.Config.get([:instance, :dynamic_configuration]) do
-      Application.get_all_env(:pleroma)
-      |> Enum.reject(fn {k, _v} -> k in [Pleroma.Repo, :env] end)
-      |> Enum.each(fn {k, v} ->
-        key = to_string(k) |> String.replace("Elixir.", "")
-
-        key =
-          if String.starts_with?(key, "Pleroma.") do
-            key
-          else
-            ":" <> key
   end
 
-        {:ok, _} = Config.update_or_create(%{group: "pleroma", key: key, value: v})
+  def run(["migrate_from_db" | options]) do
-        Mix.shell().info("#{key} is migrated.")
-      end)
-
-      Mix.shell().info("Settings migrated.")
-    else
-      Mix.shell().info(
-        "Migration is not allowed by config. You can change this behavior in instance settings."
-      )
-    end
-  end
-
-  def run(["migrate_from_db", env, delete?]) do
     start_pleroma()
 
-    delete? = if delete? == "true", do: true, else: false
+    {opts, _} =
-
+      OptionParser.parse!(options,
-    if Pleroma.Config.get([:instance, :dynamic_configuration]) do
+        strict: [env: :string, delete: :boolean],
-      config_path = "config/#{env}.exported_from_db.secret.exs"
+        aliases: [d: :delete]
-
-      {:ok, file} = File.open(config_path, [:write, :utf8])
-      IO.write(file, "use Mix.Config\r\n")
-
-      Repo.all(Config)
-      |> Enum.each(fn config ->
-        IO.write(
-          file,
-          "config :#{config.group}, #{config.key}, #{
-            inspect(Config.from_binary(config.value), limit: :infinity)
-          }\r\n\r\n"
       )
 
-        if delete? do
+    migrate_from_db(opts)
-          {:ok, _} = Repo.delete(config)
-          Mix.shell().info("#{config.key} deleted from DB.")
   end
+
+  @spec migrate_to_db(Path.t() | nil) :: any()
+  def migrate_to_db(file_path \\ nil) do
+    if Pleroma.Config.get([:configurable_from_database]) do
+      config_file =
+        if file_path do
+          file_path
+        else
+          if Pleroma.Config.get(:release) do
+            Pleroma.Config.get(:config_path)
+          else
+            "config/#{Pleroma.Config.get(:env)}.secret.exs"
+          end
+        end
+
+      do_migrate_to_db(config_file)
+    else
+      migration_error()
+    end
+  end
+
+  defp do_migrate_to_db(config_file) do
+    if File.exists?(config_file) do
+      custom_config =
+        config_file
+        |> read_file()
+        |> elem(0)
+
+      custom_config
+      |> Keyword.keys()
+      |> Enum.each(&create(&1, custom_config))
+    else
+      shell_info("To migrate settings, you must define custom settings in #{config_file}.")
+    end
+  end
+
+  defp create(group, settings) do
+    group
+    |> Pleroma.Config.Loader.filter_group(settings)
+    |> Enum.each(fn {key, value} ->
+      key = inspect(key)
+      {:ok, _} = ConfigDB.update_or_create(%{group: inspect(group), key: key, value: value})
+
+      shell_info("Settings for key #{key} migrated.")
     end)
 
-      File.close(file)
+    shell_info("Settings for group :#{group} migrated.")
+  end
+
+  defp migrate_from_db(opts) do
+    if Pleroma.Config.get([:configurable_from_database]) do
+      env = opts[:env] || "prod"
+
+      config_path =
+        if Pleroma.Config.get(:release) do
+          :config_path
+          |> Pleroma.Config.get()
+          |> Path.dirname()
+        else
+          "config"
+        end
+        |> Path.join("#{env}.exported_from_db.secret.exs")
+
+      file = File.open!(config_path, [:write, :utf8])
+
+      IO.write(file, config_header())
+
+      ConfigDB
+      |> Repo.all()
+      |> Enum.each(&write_and_delete(&1, file, opts[:delete]))
+
+      :ok = File.close(file)
       System.cmd("mix", ["format", config_path])
     else
-      Mix.shell().info(
+      migration_error()
-        "Migration is not allowed by config. You can change this behavior in instance settings."
+    end
+  end
+
+  defp migration_error do
+    shell_error(
+      "Migration is not allowed in config. You can change this behavior by setting `configurable_from_database` to true."
     )
   end
+
+  if Code.ensure_loaded?(Config.Reader) do
+    defp config_header, do: "import Config\r\n\r\n"
+    defp read_file(config_file), do: Config.Reader.read_imports!(config_file)
+  else
+    defp config_header, do: "use Mix.Config\r\n\r\n"
+    defp read_file(config_file), do: Mix.Config.eval!(config_file)
   end
+
+  defp write_and_delete(config, file, delete?) do
+    config
+    |> write(file)
+    |> delete(delete?)
+  end
+
+  defp write(config, file) do
+    value =
+      config.value
+      |> ConfigDB.from_binary()
+      |> inspect(limit: :infinity)
+
+    IO.write(file, "config #{config.group}, #{config.key}, #{value}\r\n\r\n")
+
+    config
+  end
+
+  defp delete(config, true) do
+    {:ok, _} = Repo.delete(config)
+    shell_info("#{config.key} deleted from DB.")
+  end
+
+  defp delete(_config, _), do: :ok
 end

lib/mix/tasks/pleroma/docs.ex

@@ -28,7 +28,7 @@ defmodule Mix.Tasks.Pleroma.Docs do
   defp do_run(implementation) do
     start_pleroma()
 
-    with {descriptions, _paths} <- Mix.Config.eval!("config/description.exs"),
+    with descriptions <- Pleroma.Config.Loader.load("config/description.exs"),
          {:ok, file_path} <-
            Pleroma.Docs.Generator.process(
              implementation,

lib/pleroma/activity.ex

@@ -30,7 +30,8 @@ defmodule Pleroma.Activity do
     "Follow" => "follow",
     "Announce" => "reblog",
     "Like" => "favourite",
-    "Move" => "move"
+    "Move" => "move",
+    "EmojiReaction" => "pleroma:emoji_reaction"
   }
 
   @mastodon_to_ap_notification_types for {k, v} <- @mastodon_notification_types,
@@ -312,9 +313,7 @@ defmodule Pleroma.Activity do
       from(u in User.Query.build(deactivated: true), select: u.ap_id)
       |> Repo.all()
 
-    from(activity in query,
+    Activity.Queries.exclude_authors(query, deactivated_users)
-      where: activity.actor not in ^deactivated_users
-    )
   end
 
   defdelegate search(user, query, options \\ []), to: Pleroma.Activity.Search

lib/pleroma/activity/queries.ex

@@ -12,6 +12,7 @@ defmodule Pleroma.Activity.Queries do
   @type query :: Ecto.Queryable.t() | Activity.t()
 
   alias Pleroma.Activity
+  alias Pleroma.User
 
   @spec by_ap_id(query, String.t()) :: query
   def by_ap_id(query \\ Activity, ap_id) do
@@ -29,6 +30,11 @@ defmodule Pleroma.Activity.Queries do
     )
   end
 
+  @spec by_author(query, String.t()) :: query
+  def by_author(query \\ Activity, %User{ap_id: ap_id}) do
+    from(a in query, where: a.actor == ^ap_id)
+  end
+
   @spec by_object_id(query, String.t() | [String.t()]) :: query
   def by_object_id(query \\ Activity, object_id)
 
@@ -72,4 +78,8 @@ defmodule Pleroma.Activity.Queries do
       where: fragment("(?)->>'type' != ?", activity.data, ^activity_type)
     )
   end
+
+  def exclude_authors(query \\ Activity, actors) do
+    from(activity in query, where: activity.actor not in ^actors)
+  end
 end

lib/pleroma/activity/search.ex

@@ -26,18 +26,23 @@ defmodule Pleroma.Activity.Search do
     |> query_with(index_type, search_query)
     |> maybe_restrict_local(user)
     |> maybe_restrict_author(author)
+    |> maybe_restrict_blocked(user)
     |> Pagination.fetch_paginated(%{"offset" => offset, "limit" => limit}, :offset)
     |> maybe_fetch(user, search_query)
   end
 
   def maybe_restrict_author(query, %User{} = author) do
-    from([a, o] in query,
+    Activity.Queries.by_author(query, author)
-      where: a.actor == ^author.ap_id
-    )
   end
 
   def maybe_restrict_author(query, _), do: query
 
+  def maybe_restrict_blocked(query, %User{} = user) do
+    Activity.Queries.exclude_authors(query, User.blocked_users_ap_ids(user))
+  end
+
+  def maybe_restrict_blocked(query, _), do: query
+
   defp restrict_public(q) do
     from([a, o] in q,
       where: fragment("?->>'type' = 'Create'", a.data),

lib/pleroma/application.ex

@@ -33,6 +33,7 @@ defmodule Pleroma.Application do
   def start(_type, _args) do
     Pleroma.HTML.compile_scrubbers()
     Pleroma.Config.DeprecationWarnings.warn()
+    Pleroma.Repo.check_migrations_applied!()
     setup_instrumenters()
     load_custom_modules()
 

lib/pleroma/config/config_db.ex

@@ -0,0 +1,422 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.ConfigDB do
+  use Ecto.Schema
+
+  import Ecto.Changeset
+  import Ecto.Query
+  import Pleroma.Web.Gettext
+
+  alias __MODULE__
+  alias Pleroma.Repo
+
+  @type t :: %__MODULE__{}
+
+  @full_key_update [
+    {:pleroma, :ecto_repos},
+    {:quack, :meta},
+    {:mime, :types},
+    {:cors_plug, [:max_age, :methods, :expose, :headers]},
+    {:auto_linker, :opts},
+    {:swarm, :node_blacklist},
+    {:logger, :backends}
+  ]
+
+  @full_subkey_update [
+    {:pleroma, :assets, :mascots},
+    {:pleroma, :emoji, :groups},
+    {:pleroma, :workers, :retries},
+    {:pleroma, :mrf_subchain, :match_actor},
+    {:pleroma, :mrf_keyword, :replace}
+  ]
+
+  @regex ~r/^~r(?'delimiter'[\/|"'([{<]{1})(?'pattern'.+)[\/|"')\]}>]{1}(?'modifier'[uismxfU]*)/u
+
+  @delimiters ["/", "|", "\"", "'", {"(", ")"}, {"[", "]"}, {"{", "}"}, {"<", ">"}]
+
+  schema "config" do
+    field(:key, :string)
+    field(:group, :string)
+    field(:value, :binary)
+    field(:db, {:array, :string}, virtual: true, default: [])
+
+    timestamps()
+  end
+
+  @spec get_all_as_keyword() :: keyword()
+  def get_all_as_keyword do
+    ConfigDB
+    |> select([c], {c.group, c.key, c.value})
+    |> Repo.all()
+    |> Enum.reduce([], fn {group, key, value}, acc ->
+      group = ConfigDB.from_string(group)
+      key = ConfigDB.from_string(key)
+      value = from_binary(value)
+
+      Keyword.update(acc, group, [{key, value}], &Keyword.merge(&1, [{key, value}]))
+    end)
+  end
+
+  @spec get_by_params(map()) :: ConfigDB.t() | nil
+  def get_by_params(params), do: Repo.get_by(ConfigDB, params)
+
+  @spec changeset(ConfigDB.t(), map()) :: Changeset.t()
+  def changeset(config, params \\ %{}) do
+    params = Map.put(params, :value, transform(params[:value]))
+
+    config
+    |> cast(params, [:key, :group, :value])
+    |> validate_required([:key, :group, :value])
+    |> unique_constraint(:key, name: :config_group_key_index)
+  end
+
+  @spec create(map()) :: {:ok, ConfigDB.t()} | {:error, Changeset.t()}
+  def create(params) do
+    %ConfigDB{}
+    |> changeset(params)
+    |> Repo.insert()
+  end
+
+  @spec update(ConfigDB.t(), map()) :: {:ok, ConfigDB.t()} | {:error, Changeset.t()}
+  def update(%ConfigDB{} = config, %{value: value}) do
+    config
+    |> changeset(%{value: value})
+    |> Repo.update()
+  end
+
+  @spec get_db_keys(ConfigDB.t()) :: [String.t()]
+  def get_db_keys(%ConfigDB{} = config) do
+    config.value
+    |> ConfigDB.from_binary()
+    |> get_db_keys(config.key)
+  end
+
+  @spec get_db_keys(keyword(), any()) :: [String.t()]
+  def get_db_keys(value, key) do
+    if Keyword.keyword?(value) do
+      value |> Keyword.keys() |> Enum.map(&convert(&1))
+    else
+      [convert(key)]
+    end
+  end
+
+  @spec merge_group(atom(), atom(), keyword(), keyword()) :: keyword()
+  def merge_group(group, key, old_value, new_value) do
+    new_keys = to_map_set(new_value)
+
+    intersect_keys =
+      old_value |> to_map_set() |> MapSet.intersection(new_keys) |> MapSet.to_list()
+
+    merged_value = ConfigDB.merge(old_value, new_value)
+
+    @full_subkey_update
+    |> Enum.map(fn
+      {g, k, subkey} when g == group and k == key ->
+        if subkey in intersect_keys, do: subkey, else: []
+
+      _ ->
+        []
+    end)
+    |> List.flatten()
+    |> Enum.reduce(merged_value, fn subkey, acc ->
+      Keyword.put(acc, subkey, new_value[subkey])
+    end)
+  end
+
+  defp to_map_set(keyword) do
+    keyword
+    |> Keyword.keys()
+    |> MapSet.new()
+  end
+
+  @spec sub_key_full_update?(atom(), atom(), [Keyword.key()]) :: boolean()
+  def sub_key_full_update?(group, key, subkeys) do
+    Enum.any?(@full_subkey_update, fn {g, k, subkey} ->
+      g == group and k == key and subkey in subkeys
+    end)
+  end
+
+  @spec merge(keyword(), keyword()) :: keyword()
+  def merge(config1, config2) when is_list(config1) and is_list(config2) do
+    Keyword.merge(config1, config2, fn _, app1, app2 ->
+      if Keyword.keyword?(app1) and Keyword.keyword?(app2) do
+        Keyword.merge(app1, app2, &deep_merge/3)
+      else
+        app2
+      end
+    end)
+  end
+
+  defp deep_merge(_key, value1, value2) do
+    if Keyword.keyword?(value1) and Keyword.keyword?(value2) do
+      Keyword.merge(value1, value2, &deep_merge/3)
+    else
+      value2
+    end
+  end
+
+  @spec update_or_create(map()) :: {:ok, ConfigDB.t()} | {:error, Changeset.t()}
+  def update_or_create(params) do
+    search_opts = Map.take(params, [:group, :key])
+
+    with %ConfigDB{} = config <- ConfigDB.get_by_params(search_opts),
+         {:partial_update, true, config} <-
+           {:partial_update, can_be_partially_updated?(config), config},
+         old_value <- from_binary(config.value),
+         transformed_value <- do_transform(params[:value]),
+         {:can_be_merged, true, config} <- {:can_be_merged, is_list(transformed_value), config},
+         new_value <-
+           merge_group(
+             ConfigDB.from_string(config.group),
+             ConfigDB.from_string(config.key),
+             old_value,
+             transformed_value
+           ) do
+      ConfigDB.update(config, %{value: new_value})
+    else
+      {reason, false, config} when reason in [:partial_update, :can_be_merged] ->
+        ConfigDB.update(config, params)
+
+      nil ->
+        ConfigDB.create(params)
+    end
+  end
+
+  defp can_be_partially_updated?(%ConfigDB{} = config), do: not only_full_update?(config)
+
+  defp only_full_update?(%ConfigDB{} = config) do
+    config_group = ConfigDB.from_string(config.group)
+    config_key = ConfigDB.from_string(config.key)
+
+    Enum.any?(@full_key_update, fn
+      {group, key} when is_list(key) ->
+        config_group == group and config_key in key
+
+      {group, key} ->
+        config_group == group and config_key == key
+    end)
+  end
+
+  @spec delete(map()) :: {:ok, ConfigDB.t()} | {:error, Changeset.t()}
+  def delete(params) do
+    search_opts = Map.delete(params, :subkeys)
+
+    with %ConfigDB{} = config <- ConfigDB.get_by_params(search_opts),
+         {config, sub_keys} when is_list(sub_keys) <- {config, params[:subkeys]},
+         old_value <- from_binary(config.value),
+         keys <- Enum.map(sub_keys, &do_transform_string(&1)),
+         {:partial_remove, config, new_value} when new_value != [] <-
+           {:partial_remove, config, Keyword.drop(old_value, keys)} do
+      ConfigDB.update(config, %{value: new_value})
+    else
+      {:partial_remove, config, []} ->
+        Repo.delete(config)
+
+      {config, nil} ->
+        Repo.delete(config)
+
+      nil ->
+        err =
+          dgettext("errors", "Config with params %{params} not found", params: inspect(params))
+
+        {:error, err}
+    end
+  end
+
+  @spec from_binary(binary()) :: term()
+  def from_binary(binary), do: :erlang.binary_to_term(binary)
+
+  @spec from_binary_with_convert(binary()) :: any()
+  def from_binary_with_convert(binary) do
+    binary
+    |> from_binary()
+    |> do_convert()
+  end
+
+  @spec from_string(String.t()) :: atom() | no_return()
+  def from_string(":" <> entity), do: String.to_existing_atom(entity)
+
+  def from_string(entity) when is_binary(entity) do
+    if is_module_name?(entity) do
+      String.to_existing_atom("Elixir.#{entity}")
+    else
+      entity
+    end
+  end
+
+  @spec convert(any()) :: any()
+  def convert(entity), do: do_convert(entity)
+
+  defp do_convert(entity) when is_list(entity) do
+    for v <- entity, into: [], do: do_convert(v)
+  end
+
+  defp do_convert(%Regex{} = entity), do: inspect(entity)
+
+  defp do_convert(entity) when is_map(entity) do
+    for {k, v} <- entity, into: %{}, do: {do_convert(k), do_convert(v)}
+  end
+
+  defp do_convert({:proxy_url, {type, :localhost, port}}) do
+    %{"tuple" => [":proxy_url", %{"tuple" => [do_convert(type), "localhost", port]}]}
+  end
+
+  defp do_convert({:proxy_url, {type, host, port}}) when is_tuple(host) do
+    ip =
+      host
+      |> :inet_parse.ntoa()
+      |> to_string()
+
+    %{
+      "tuple" => [
+        ":proxy_url",
+        %{"tuple" => [do_convert(type), ip, port]}
+      ]
+    }
+  end
+
+  defp do_convert({:proxy_url, {type, host, port}}) do
+    %{
+      "tuple" => [
+        ":proxy_url",
+        %{"tuple" => [do_convert(type), to_string(host), port]}
+      ]
+    }
+  end
+
+  defp do_convert({:partial_chain, entity}), do: %{"tuple" => [":partial_chain", inspect(entity)]}
+
+  defp do_convert(entity) when is_tuple(entity) do
+    value =
+      entity
+      |> Tuple.to_list()
+      |> do_convert()
+
+    %{"tuple" => value}
+  end
+
+  defp do_convert(entity) when is_boolean(entity) or is_number(entity) or is_nil(entity) do
+    entity
+  end
+
+  defp do_convert(entity)
+       when is_atom(entity) and entity in [:"tlsv1.1", :"tlsv1.2", :"tlsv1.3"] do
+    ":#{entity}"
+  end
+
+  defp do_convert(entity) when is_atom(entity), do: inspect(entity)
+
+  defp do_convert(entity) when is_binary(entity), do: entity
+
+  @spec transform(any()) :: binary() | no_return()
+  def transform(entity) when is_binary(entity) or is_map(entity) or is_list(entity) do
+    entity
+    |> do_transform()
+    |> to_binary()
+  end
+
+  def transform(entity), do: to_binary(entity)
+
+  @spec transform_with_out_binary(any()) :: any()
+  def transform_with_out_binary(entity), do: do_transform(entity)
+
+  @spec to_binary(any()) :: binary()
+  def to_binary(entity), do: :erlang.term_to_binary(entity)
+
+  defp do_transform(%Regex{} = entity), do: entity
+
+  defp do_transform(%{"tuple" => [":proxy_url", %{"tuple" => [type, host, port]}]}) do
+    {:proxy_url, {do_transform_string(type), parse_host(host), port}}
+  end
+
+  defp do_transform(%{"tuple" => [":partial_chain", entity]}) do
+    {partial_chain, []} =
+      entity
+      |> String.replace(~r/[^\w|^{:,[|^,|^[|^\]^}|^\/|^\.|^"]^\s/, "")
+      |> Code.eval_string()
+
+    {:partial_chain, partial_chain}
+  end
+
+  defp do_transform(%{"tuple" => entity}) do
+    Enum.reduce(entity, {}, fn val, acc -> Tuple.append(acc, do_transform(val)) end)
+  end
+
+  defp do_transform(entity) when is_map(entity) do
+    for {k, v} <- entity, into: %{}, do: {do_transform(k), do_transform(v)}
+  end
+
+  defp do_transform(entity) when is_list(entity) do
+    for v <- entity, into: [], do: do_transform(v)
+  end
+
+  defp do_transform(entity) when is_binary(entity) do
+    entity
+    |> String.trim()
+    |> do_transform_string()
+  end
+
+  defp do_transform(entity), do: entity
+
+  defp parse_host("localhost"), do: :localhost
+
+  defp parse_host(host) do
+    charlist = to_charlist(host)
+
+    case :inet.parse_address(charlist) do
+      {:error, :einval} ->
+        charlist
+
+      {:ok, ip} ->
+        ip
+    end
+  end
+
+  defp find_valid_delimiter([], _string, _) do
+    raise(ArgumentError, message: "valid delimiter for Regex expression not found")
+  end
+
+  defp find_valid_delimiter([{leading, closing} = delimiter | others], pattern, regex_delimiter)
+       when is_tuple(delimiter) do
+    if String.contains?(pattern, closing) do
+      find_valid_delimiter(others, pattern, regex_delimiter)
+    else
+      {:ok, {leading, closing}}
+    end
+  end
+
+  defp find_valid_delimiter([delimiter | others], pattern, regex_delimiter) do
+    if String.contains?(pattern, delimiter) do
+      find_valid_delimiter(others, pattern, regex_delimiter)
+    else
+      {:ok, {delimiter, delimiter}}
+    end
+  end
+
+  defp do_transform_string("~r" <> _pattern = regex) do
+    with %{"modifier" => modifier, "pattern" => pattern, "delimiter" => regex_delimiter} <-
+           Regex.named_captures(@regex, regex),
+         {:ok, {leading, closing}} <- find_valid_delimiter(@delimiters, pattern, regex_delimiter),
+         {result, _} <- Code.eval_string("~r#{leading}#{pattern}#{closing}#{modifier}") do
+      result
+    end
+  end
+
+  defp do_transform_string(":" <> atom), do: String.to_atom(atom)
+
+  defp do_transform_string(value) do
+    if is_module_name?(value) do
+      String.to_existing_atom("Elixir." <> value)
+    else
+      value
+    end
+  end
+
+  @spec is_module_name?(String.t()) :: boolean()
+  def is_module_name?(string) do
+    Regex.match?(~r/^(Pleroma|Phoenix|Tesla|Quack|Ueberauth)\./, string) or
+      string in ["Oban", "Ueberauth", "ExSyslogger"]
+  end
+end

lib/pleroma/config/holder.ex

@@ -0,0 +1,16 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Config.Holder do
+  @config Pleroma.Config.Loader.load_and_merge()
+
+  @spec config() :: keyword()
+  def config, do: @config
+
+  @spec config(atom()) :: any()
+  def config(group), do: @config[group]
+
+  @spec config(atom(), atom()) :: any()
+  def config(group, key), do: @config[group][key]
+end

lib/pleroma/config/loader.ex

@@ -0,0 +1,59 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Config.Loader do
+  @paths ["config/config.exs", "config/#{Mix.env()}.exs"]
+
+  @reject_keys [
+    Pleroma.Repo,
+    Pleroma.Web.Endpoint,
+    :env,
+    :configurable_from_database,
+    :database,
+    :swarm
+  ]
+
+  if Code.ensure_loaded?(Config.Reader) do
+    @spec load(Path.t()) :: keyword()
+    def load(path), do: Config.Reader.read!(path)
+
+    defp do_merge(conf1, conf2), do: Config.Reader.merge(conf1, conf2)
+  else
+    # support for Elixir less than 1.9
+    @spec load(Path.t()) :: keyword()
+    def load(path) do
+      path
+      |> Mix.Config.eval!()
+      |> elem(0)
+    end
+
+    defp do_merge(conf1, conf2), do: Mix.Config.merge(conf1, conf2)
+  end
+
+  @spec load_and_merge() :: keyword()
+  def load_and_merge do
+    all_paths =
+      if Pleroma.Config.get(:release),
+        do: @paths ++ ["config/releases.exs"],
+        else: @paths
+
+    all_paths
+    |> Enum.map(&load(&1))
+    |> Enum.reduce([], &do_merge(&2, &1))
+    |> filter()
+  end
+
+  defp filter(configs) do
+    configs
+    |> Keyword.keys()
+    |> Enum.reduce([], &Keyword.put(&2, &1, filter_group(&1, configs)))
+  end
+
+  @spec filter_group(atom(), keyword()) :: keyword()
+  def filter_group(group, configs) do
+    Enum.reject(configs[group], fn {key, _v} ->
+      key in @reject_keys or (group == :phoenix and key == :serve_endpoints)
+    end)
+  end
+end

lib/pleroma/config/transfer_task.ex

@@ -4,56 +4,111 @@
 
 defmodule Pleroma.Config.TransferTask do
   use Task
-  alias Pleroma.Web.AdminAPI.Config
+
+  alias Pleroma.ConfigDB
+  alias Pleroma.Repo
+
+  require Logger
 
   def start_link(_) do
     load_and_update_env()
-    if Pleroma.Config.get(:env) == :test, do: Ecto.Adapters.SQL.Sandbox.checkin(Pleroma.Repo)
+    if Pleroma.Config.get(:env) == :test, do: Ecto.Adapters.SQL.Sandbox.checkin(Repo)
     :ignore
   end
 
-  def load_and_update_env do
+  @spec load_and_update_env([ConfigDB.t()]) :: :ok | false
-    if Pleroma.Config.get([:instance, :dynamic_configuration]) and
+  def load_and_update_env(deleted \\ []) do
-         Ecto.Adapters.SQL.table_exists?(Pleroma.Repo, "config") do
+    with true <- Pleroma.Config.get(:configurable_from_database),
-      for_restart =
+         true <- Ecto.Adapters.SQL.table_exists?(Repo, "config"),
-        Pleroma.Repo.all(Config)
+         started_applications <- Application.started_applications() do
-        |> Enum.map(&update_env(&1))
-
       # We need to restart applications for loaded settings take effect
-      for_restart
+      in_db = Repo.all(ConfigDB)
-      |> Enum.reject(&(&1 in [:pleroma, :ok]))
+
-      |> Enum.each(fn app ->
+      with_deleted = in_db ++ deleted
-        Application.stop(app)
+
-        :ok = Application.start(app)
+      with_deleted
-      end)
+      |> Enum.map(&merge_and_update(&1))
+      |> Enum.uniq()
+      # TODO: some problem with prometheus after restart!
+      |> Enum.reject(&(&1 in [:pleroma, nil, :prometheus]))
+      |> Enum.each(&restart(started_applications, &1))
+
+      :ok
     end
   end
 
-  defp update_env(setting) do
+  defp merge_and_update(setting) do
     try do
-      key =
+      key = ConfigDB.from_string(setting.key)
-        if String.starts_with?(setting.key, "Pleroma.") do
+      group = ConfigDB.from_string(setting.group)
-          "Elixir." <> setting.key
-        else
-          String.trim_leading(setting.key, ":")
-        end
 
-      group = String.to_existing_atom(setting.group)
+      default = Pleroma.Config.Holder.config(group, key)
+      merged_value = merge_value(setting, default, group, key)
 
-      Application.put_env(
+      :ok = update_env(group, key, merged_value)
-        group,
-        String.to_existing_atom(key),
-        Config.from_binary(setting.value)
-      )
 
+      if group != :logger do
         group
-    rescue
+      else
-      e ->
+        # change logger configuration in runtime, without restart
-        require Logger
+        if Keyword.keyword?(merged_value) and
+             key not in [:compile_time_application, :backends, :compile_time_purge_matching] do
+          Logger.configure_backend(key, merged_value)
+        else
+          Logger.configure([{key, merged_value}])
+        end
 
-        Logger.warn(
+        nil
-          "updating env causes error, key: #{inspect(setting.key)}, error: #{inspect(e)}"
+      end
-        )
+    rescue
+      error ->
+        error_msg =
+          "updating env causes error, group: " <>
+            inspect(setting.group) <>
+            " key: " <>
+            inspect(setting.key) <>
+            " value: " <>
+            inspect(ConfigDB.from_binary(setting.value)) <> " error: " <> inspect(error)
+
+        Logger.warn(error_msg)
+
+        nil
     end
   end
+
+  defp merge_value(%{__meta__: %{state: :deleted}}, default, _group, _key), do: default
+
+  defp merge_value(setting, default, group, key) do
+    value = ConfigDB.from_binary(setting.value)
+
+    if can_be_merged?(default, value) do
+      ConfigDB.merge_group(group, key, default, value)
+    else
+      value
+    end
+  end
+
+  defp update_env(group, key, nil), do: Application.delete_env(group, key)
+  defp update_env(group, key, value), do: Application.put_env(group, key, value)
+
+  defp restart(started_applications, app) do
+    with {^app, _, _} <- List.keyfind(started_applications, app, 0),
+         :ok <- Application.stop(app) do
+      :ok = Application.start(app)
+    else
+      nil ->
+        Logger.warn("#{app} is not started.")
+
+      error ->
+        error
+        |> inspect()
+        |> Logger.warn()
+    end
+  end
+
+  defp can_be_merged?(val1, val2) when is_list(val1) and is_list(val2) do
+    Keyword.keyword?(val1) and Keyword.keyword?(val2)
+  end
+
+  defp can_be_merged?(_val1, _val2), do: false
 end

lib/pleroma/docs/generator.ex

@@ -6,68 +6,116 @@ defmodule Pleroma.Docs.Generator do
     implementation.process(descriptions)
   end
 
-  @spec uploaders_list() :: [module()]
+  @spec list_modules_in_dir(String.t(), String.t()) :: [module()]
-  def uploaders_list do
+  def list_modules_in_dir(dir, start) do
-    {:ok, modules} = :application.get_key(:pleroma, :modules)
+    with {:ok, files} <- File.ls(dir) do
-
+      files
-    Enum.filter(modules, fn module ->
+      |> Enum.filter(&String.ends_with?(&1, ".ex"))
-      name_as_list = Module.split(module)
+      |> Enum.map(fn filename ->
-
+        module = filename |> String.trim_trailing(".ex") |> Macro.camelize()
-      List.starts_with?(name_as_list, ["Pleroma", "Uploaders"]) and
+        String.to_existing_atom(start <> module)
-        List.last(name_as_list) != "Uploader"
       end)
     end
-
-  @spec filters_list() :: [module()]
-  def filters_list do
-    {:ok, modules} = :application.get_key(:pleroma, :modules)
-
-    Enum.filter(modules, fn module ->
-      name_as_list = Module.split(module)
-
-      List.starts_with?(name_as_list, ["Pleroma", "Upload", "Filter"])
-    end)
   end
 
-  @spec mrf_list() :: [module()]
+  @doc """
-  def mrf_list do
+  Converts:
-    {:ok, modules} = :application.get_key(:pleroma, :modules)
+  - atoms to strings with leading `:`
-
+  - module names to strings, without leading `Elixir.`
-    Enum.filter(modules, fn module ->
+  - add humanized labels to `keys` if label is not defined, e.g. `:instance` -> `Instance`
-      name_as_list = Module.split(module)
+  """
-
+  @spec convert_to_strings([map()]) :: [map()]
-      List.starts_with?(name_as_list, ["Pleroma", "Web", "ActivityPub", "MRF"]) and
+  def convert_to_strings(descriptions) do
-        length(name_as_list) > 4
+    Enum.map(descriptions, &format_entity(&1))
-    end)
   end
 
-  @spec richmedia_parsers() :: [module()]
+  defp format_entity(entity) do
-  def richmedia_parsers do
+    entity
-    {:ok, modules} = :application.get_key(:pleroma, :modules)
+    |> format_key()
-
+    |> Map.put(:group, atom_to_string(entity[:group]))
-    Enum.filter(modules, fn module ->
+    |> format_children()
-      name_as_list = Module.split(module)
-
-      List.starts_with?(name_as_list, ["Pleroma", "Web", "RichMedia", "Parsers"]) and
-        length(name_as_list) == 5
-    end)
   end
+
+  defp format_key(%{key: key} = entity) do
+    entity
+    |> Map.put(:key, atom_to_string(key))
+    |> Map.put(:label, entity[:label] || humanize(key))
+  end
+
+  defp format_key(%{group: group} = entity) do
+    Map.put(entity, :label, entity[:label] || humanize(group))
+  end
+
+  defp format_key(entity), do: entity
+
+  defp format_children(%{children: children} = entity) do
+    Map.put(entity, :children, Enum.map(children, &format_child(&1)))
+  end
+
+  defp format_children(entity), do: entity
+
+  defp format_child(%{suggestions: suggestions} = entity) do
+    entity
+    |> Map.put(:suggestions, format_suggestions(suggestions))
+    |> format_key()
+    |> format_group()
+    |> format_children()
+  end
+
+  defp format_child(entity) do
+    entity
+    |> format_key()
+    |> format_group()
+    |> format_children()
+  end
+
+  defp format_group(%{group: group} = entity) do
+    Map.put(entity, :group, format_suggestion(group))
+  end
+
+  defp format_group(entity), do: entity
+
+  defp atom_to_string(entity) when is_binary(entity), do: entity
+
+  defp atom_to_string(entity) when is_atom(entity), do: inspect(entity)
+
+  defp humanize(entity) do
+    string = inspect(entity)
+
+    if String.starts_with?(string, ":"),
+      do: Phoenix.Naming.humanize(entity),
+      else: string
+  end
+
+  defp format_suggestions([]), do: []
+
+  defp format_suggestions([suggestion | tail]) do
+    [format_suggestion(suggestion) | format_suggestions(tail)]
+  end
+
+  defp format_suggestion(entity) when is_atom(entity) do
+    atom_to_string(entity)
+  end
+
+  defp format_suggestion([head | tail] = entity) when is_list(entity) do
+    [format_suggestion(head) | format_suggestions(tail)]
+  end
+
+  defp format_suggestion(entity) when is_tuple(entity) do
+    format_suggestions(Tuple.to_list(entity)) |> List.to_tuple()
+  end
+
+  defp format_suggestion(entity), do: entity
 end
 
 defimpl Jason.Encoder, for: Tuple do
-  def encode(tuple, opts) do
+  def encode(tuple, opts), do: Jason.Encode.list(Tuple.to_list(tuple), opts)
-    Jason.Encode.list(Tuple.to_list(tuple), opts)
-  end
 end
 
 defimpl Jason.Encoder, for: [Regex, Function] do
-  def encode(term, opts) do
+  def encode(term, opts), do: Jason.Encode.string(inspect(term), opts)
-    Jason.Encode.string(inspect(term), opts)
-  end
 end
 
 defimpl String.Chars, for: Regex do
-  def to_string(term) do
+  def to_string(term), do: inspect(term)
-    inspect(term)
-  end
 end

lib/pleroma/docs/json.ex

@@ -3,18 +3,22 @@ defmodule Pleroma.Docs.JSON do
 
   @spec process(keyword()) :: {:ok, String.t()}
   def process(descriptions) do
-    config_path = "docs/generate_config.json"
+    with path <- "docs/generated_config.json",
-
+         {:ok, file} <- File.open(path, [:write, :utf8]),
-    with {:ok, file} <- File.open(config_path, [:write, :utf8]),
+         formatted_descriptions <-
-         json <- generate_json(descriptions),
+           Pleroma.Docs.Generator.convert_to_strings(descriptions),
+         json <- Jason.encode!(formatted_descriptions),
          :ok <- IO.write(file, json),
          :ok <- File.close(file) do
-      {:ok, config_path}
+      {:ok, path}
     end
   end
 
-  @spec generate_json([keyword()]) :: String.t()
+  def compile do
-  def generate_json(descriptions) do
+    with config <- Pleroma.Config.Loader.load("config/description.exs") do
-    Jason.encode!(descriptions)
+      config[:pleroma][:config_description]
+      |> Pleroma.Docs.Generator.convert_to_strings()
+      |> Jason.encode!()
+    end
   end
 end

lib/pleroma/notification.ex

@@ -294,7 +294,7 @@ defmodule Pleroma.Notification do
   end
 
   def create_notifications(%Activity{data: %{"type" => type}} = activity)
-      when type in ["Like", "Announce", "Follow", "Move"] do
+      when type in ["Like", "Announce", "Follow", "Move", "EmojiReaction"] do
     notifications =
       activity
       |> get_notified_from_activity()
@@ -322,7 +322,7 @@ defmodule Pleroma.Notification do
   def get_notified_from_activity(activity, local_only \\ true)
 
   def get_notified_from_activity(%Activity{data: %{"type" => type}} = activity, local_only)
-      when type in ["Create", "Like", "Announce", "Follow", "Move"] do
+      when type in ["Create", "Like", "Announce", "Follow", "Move", "EmojiReaction"] do
     []
     |> Utils.maybe_notify_to_recipients(activity)
     |> Utils.maybe_notify_mentioned_recipients(activity)

lib/pleroma/object.ex

@@ -19,6 +19,8 @@ defmodule Pleroma.Object do
 
   @type t() :: %__MODULE__{}
 
+  @derive {Jason.Encoder, only: [:data]}
+
   schema "objects" do
     field(:data, :map)
 
@@ -180,85 +182,17 @@ defmodule Pleroma.Object do
 
   def delete(%Object{data: %{"id" => id}} = object) do
     with {:ok, _obj} = swap_object_with_tombstone(object),
-         :ok <- delete_attachments(object),
          deleted_activity = Activity.delete_all_by_object_ap_id(id),
          {:ok, true} <- Cachex.del(:object_cache, "object:#{id}"),
-         {:ok, _} <- Cachex.del(:web_resp_cache, URI.parse(id).path) do
+         {:ok, _} <- Cachex.del(:web_resp_cache, URI.parse(id).path),
+         {:ok, _} <-
+           Pleroma.Workers.AttachmentsCleanupWorker.enqueue("cleanup_attachments", %{
+             "object" => object
+           }) do
       {:ok, object, deleted_activity}
     end
   end
 
-  defp delete_attachments(%{data: %{"attachment" => [_ | _] = attachments, "actor" => actor}}) do
-    hrefs =
-      Enum.flat_map(attachments, fn attachment ->
-        Enum.map(attachment["url"], & &1["href"])
-      end)
-
-    names = Enum.map(attachments, & &1["name"])
-
-    uploader = Pleroma.Config.get([Pleroma.Upload, :uploader])
-
-    # find all objects for copies of the attachments, name and actor doesn't matter here
-    delete_ids =
-      from(o in Object,
-        where:
-          fragment(
-            "to_jsonb(array(select jsonb_array_elements((?)#>'{url}') ->> 'href'))::jsonb \\?| (?)",
-            o.data,
-            ^hrefs
-          )
-      )
-      |> Repo.all()
-      # we should delete 1 object for any given attachment, but don't delete files if
-      # there are more than 1 object for it
-      |> Enum.reduce(%{}, fn %{
-                               id: id,
-                               data: %{
-                                 "url" => [%{"href" => href}],
-                                 "actor" => obj_actor,
-                                 "name" => name
-                               }
-                             },
-                             acc ->
-        Map.update(acc, href, %{id: id, count: 1}, fn val ->
-          case obj_actor == actor and name in names do
-            true ->
-              # set id of the actor's object that will be deleted
-              %{val | id: id, count: val.count + 1}
-
-            false ->
-              # another actor's object, just increase count to not delete file
-              %{val | count: val.count + 1}
-          end
-        end)
-      end)
-      |> Enum.map(fn {href, %{id: id, count: count}} ->
-        # only delete files that have single instance
-        with 1 <- count do
-          prefix =
-            case Pleroma.Config.get([Pleroma.Upload, :base_url]) do
-              nil -> "media"
-              _ -> ""
-            end
-
-          base_url = Pleroma.Config.get([__MODULE__, :base_url], Pleroma.Web.base_url())
-
-          file_path = String.trim_leading(href, "#{base_url}/#{prefix}")
-
-          uploader.delete_file(file_path)
-        end
-
-        id
-      end)
-
-    from(o in Object, where: o.id in ^delete_ids)
-    |> Repo.delete_all()
-
-    :ok
-  end
-
-  defp delete_attachments(%{data: _data}), do: :ok
-
   def prune(%Object{data: %{"id" => id}} = object) do
     with {:ok, object} <- Repo.delete(object),
          {:ok, true} <- Cachex.del(:object_cache, "object:#{id}"),

lib/pleroma/object/fetcher.ex

@@ -117,6 +117,9 @@ defmodule Pleroma.Object.Fetcher do
       {:error, %Tesla.Mock.Error{}} ->
         nil
 
+      {:error, "Object has been deleted"} ->
+        nil
+
       e ->
         Logger.error("Error while fetching #{id}: #{inspect(e)}")
         nil

lib/pleroma/repo.ex

@@ -8,6 +8,8 @@ defmodule Pleroma.Repo do
     adapter: Ecto.Adapters.Postgres,
     migration_timestamps: [type: :naive_datetime_usec]
 
+  require Logger
+
   defmodule Instrumenter do
     use Prometheus.EctoInstrumenter
   end
@@ -47,4 +49,37 @@ defmodule Pleroma.Repo do
       _ -> {:error, :not_found}
     end
   end
+
+  def check_migrations_applied!() do
+    unless Pleroma.Config.get(
+             [:i_am_aware_this_may_cause_data_loss, :disable_migration_check],
+             false
+           ) do
+      Ecto.Migrator.with_repo(__MODULE__, fn repo ->
+        down_migrations =
+          Ecto.Migrator.migrations(repo)
+          |> Enum.reject(fn
+            {:up, _, _} -> true
+            {:down, _, _} -> false
+          end)
+
+        if length(down_migrations) > 0 do
+          down_migrations_text =
+            Enum.map(down_migrations, fn {:down, id, name} -> "- #{name} (#{id})\n" end)
+
+          Logger.error(
+            "The following migrations were not applied:\n#{down_migrations_text}If you want to start Pleroma anyway, set\nconfig :pleroma, :i_am_aware_this_may_cause_data_loss, disable_migration_check: true"
+          )
+
+          raise Pleroma.Repo.UnappliedMigrationsError
+        end
+      end)
+    else
+      :ok
+    end
+  end
+end
+
+defmodule Pleroma.Repo.UnappliedMigrationsError do
+  defexception message: "Unapplied Migrations detected"
 end

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -1369,6 +1369,10 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
          data <- maybe_update_follow_information(data) do
       {:ok, data}
     else
+      {:error, "Object has been deleted"} = e ->
+        Logger.debug("Could not decode user at fetch #{ap_id}, #{inspect(e)}")
+        {:error, e}
+
       e ->
         Logger.error("Could not decode user at fetch #{ap_id}, #{inspect(e)}")
         {:error, e}

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

@@ -20,7 +20,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.VocabularyPolicy do
     with accepted_vocabulary <- Pleroma.Config.get([:mrf_vocabulary, :accept]),
          rejected_vocabulary <- Pleroma.Config.get([:mrf_vocabulary, :reject]),
          true <-
-           length(accepted_vocabulary) == 0 || Enum.member?(accepted_vocabulary, message_type),
+           Enum.empty?(accepted_vocabulary) || Enum.member?(accepted_vocabulary, message_type),
          false <-
            length(rejected_vocabulary) > 0 && Enum.member?(rejected_vocabulary, message_type),
          {:ok, _} <- filter(message["object"]) do

lib/pleroma/web/activity_pub/transmogrifier.ex

@@ -658,24 +658,8 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
     with %User{ap_id: ^actor_id} = actor <- User.get_cached_by_ap_id(object["id"]) do
       {:ok, new_user_data} = ActivityPub.user_data_from_user_object(object)
 
-      locked = new_user_data[:locked] || false
-      attachment = get_in(new_user_data, [:source_data, "attachment"]) || []
-      invisible = new_user_data[:invisible] || false
-
-      fields =
-        attachment
-        |> Enum.filter(fn %{"type" => t} -> t == "PropertyValue" end)
-        |> Enum.map(fn fields -> Map.take(fields, ["name", "value"]) end)
-
-      update_data =
-        new_user_data
-        |> Map.take([:avatar, :banner, :bio, :name, :also_known_as])
-        |> Map.put(:fields, fields)
-        |> Map.put(:locked, locked)
-        |> Map.put(:invisible, invisible)
-
       actor
-      |> User.upgrade_changeset(update_data, true)
+      |> User.upgrade_changeset(new_user_data, true)
       |> User.update_and_set_cache()
 
       ActivityPub.update(%{

lib/pleroma/web/activity_pub/utils.ex

@@ -312,19 +312,12 @@ defmodule Pleroma.Web.ActivityPub.Utils do
     |> Map.put("content", emoji)
   end
 
-  @spec update_element_in_object(String.t(), list(any), Object.t()) ::
+  @spec update_element_in_object(String.t(), list(any), Object.t(), integer() | nil) ::
           {:ok, Object.t()} | {:error, Ecto.Changeset.t()}
-  def update_element_in_object(property, element, object) do
+  def update_element_in_object(property, element, object, count \\ nil) do
     length =
-      if is_map(element) do
+      count ||
-        element
+        length(element)
-        |> Map.values()
-        |> List.flatten()
-        |> length()
-      else
-        element
-        |> length()
-      end
 
     data =
       Map.merge(
@@ -344,29 +337,52 @@ defmodule Pleroma.Web.ActivityPub.Utils do
         %Activity{data: %{"content" => emoji, "actor" => actor}},
         object
       ) do
-    reactions = object.data["reactions"] || %{}
+    reactions = object.data["reactions"] || []
-    emoji_actors = reactions[emoji] || []
+
-    new_emoji_actors = [actor | emoji_actors] |> Enum.uniq()
+    new_reactions =
-    new_reactions = Map.put(reactions, emoji, new_emoji_actors)
+      case Enum.find_index(reactions, fn [candidate, _] -> emoji == candidate end) do
-    update_element_in_object("reaction", new_reactions, object)
+        nil ->
+          reactions ++ [[emoji, [actor]]]
+
+        index ->
+          List.update_at(
+            reactions,
+            index,
+            fn [emoji, users] -> [emoji, Enum.uniq([actor | users])] end
+          )
+      end
+
+    count = emoji_count(new_reactions)
+
+    update_element_in_object("reaction", new_reactions, object, count)
+  end
+
+  def emoji_count(reactions_list) do
+    Enum.reduce(reactions_list, 0, fn [_, users], acc -> acc + length(users) end)
   end
 
   def remove_emoji_reaction_from_object(
         %Activity{data: %{"content" => emoji, "actor" => actor}},
         object
       ) do
-    reactions = object.data["reactions"] || %{}
+    reactions = object.data["reactions"] || []
-    emoji_actors = reactions[emoji] || []
-    new_emoji_actors = List.delete(emoji_actors, actor)
 
     new_reactions =
-      if new_emoji_actors == [] do
+      case Enum.find_index(reactions, fn [candidate, _] -> emoji == candidate end) do
-        Map.delete(reactions, emoji)
+        nil ->
-      else
+          reactions
-        Map.put(reactions, emoji, new_emoji_actors)
+
+        index ->
+          List.update_at(
+            reactions,
+            index,
+            fn [emoji, users] -> [emoji, List.delete(users, actor)] end
+          )
+          |> Enum.reject(fn [_, users] -> Enum.empty?(users) end)
       end
 
-    update_element_in_object("reaction", new_reactions, object)
+    count = emoji_count(new_reactions)
+    update_element_in_object("reaction", new_reactions, object, count)
   end
 
   @spec add_like_to_object(Activity.t(), Object.t()) ::

lib/pleroma/web/admin_api/admin_api_controller.ex

@@ -4,7 +4,11 @@
 
 defmodule Pleroma.Web.AdminAPI.AdminAPIController do
   use Pleroma.Web, :controller
+
+  import Pleroma.Web.ControllerHelper, only: [json_response: 3]
+
   alias Pleroma.Activity
+  alias Pleroma.ConfigDB
   alias Pleroma.ModerationLog
   alias Pleroma.Plugs.OAuthScopesPlug
   alias Pleroma.ReportNote
@@ -14,7 +18,6 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
   alias Pleroma.Web.ActivityPub.Relay
   alias Pleroma.Web.ActivityPub.Utils
   alias Pleroma.Web.AdminAPI.AccountView
-  alias Pleroma.Web.AdminAPI.Config
   alias Pleroma.Web.AdminAPI.ConfigView
   alias Pleroma.Web.AdminAPI.ModerationLogView
   alias Pleroma.Web.AdminAPI.Report
@@ -25,10 +28,11 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
   alias Pleroma.Web.MastodonAPI.StatusView
   alias Pleroma.Web.Router
 
-  import Pleroma.Web.ControllerHelper, only: [json_response: 3]
-
   require Logger
 
+  @descriptions_json Pleroma.Docs.JSON.compile()
+  @users_page_size 50
+
   plug(
     OAuthScopesPlug,
     %{scopes: ["read:accounts"], admin: true}
@@ -75,7 +79,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
   plug(
     OAuthScopesPlug,
     %{scopes: ["write:reports"], admin: true}
-    when action in [:report_update_state, :report_respond]
+    when action in [:reports_update]
   )
 
   plug(
@@ -93,7 +97,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
   plug(
     OAuthScopesPlug,
     %{scopes: ["read"], admin: true}
-    when action in [:config_show, :migrate_to_db, :migrate_from_db, :list_log]
+    when action in [:config_show, :migrate_from_db, :list_log]
   )
 
   plug(
@@ -102,8 +106,6 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
     when action == :config_update
   )
 
-  @users_page_size 50
-
   action_fallback(:errors)
 
   def user_delete(%{assigns: %{user: admin}} = conn, %{"nickname" => nickname}) do
@@ -639,7 +641,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
   def force_password_reset(%{assigns: %{user: admin}} = conn, %{"nicknames" => nicknames}) do
     users = nicknames |> Enum.map(&User.get_cached_by_nickname/1)
 
-    Enum.map(users, &User.force_password_reset_async/1)
+    Enum.each(users, &User.force_password_reset_async/1)
 
     ModerationLog.insert_log(%{
       actor: admin,
@@ -785,50 +787,133 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
     |> render("index.json", %{log: log})
   end
 
-  def migrate_to_db(conn, _params) do
+  def config_descriptions(conn, _params) do
-    Mix.Tasks.Pleroma.Config.run(["migrate_to_db"])
+    conn
-    json(conn, %{})
+    |> Plug.Conn.put_resp_content_type("application/json")
+    |> Plug.Conn.send_resp(200, @descriptions_json)
   end
 
   def migrate_from_db(conn, _params) do
-    Mix.Tasks.Pleroma.Config.run(["migrate_from_db", Pleroma.Config.get(:env), "true"])
+    with :ok <- configurable_from_database(conn) do
+      Mix.Tasks.Pleroma.Config.run([
+        "migrate_from_db",
+        "--env",
+        to_string(Pleroma.Config.get(:env)),
+        "-d"
+      ])
+
       json(conn, %{})
     end
+  end
 
-  def config_show(conn, _params) do
+  def config_show(conn, %{"only_db" => true}) do
-    configs = Pleroma.Repo.all(Config)
+    with :ok <- configurable_from_database(conn) do
+      configs = Pleroma.Repo.all(ConfigDB)
 
+      if configs == [] do
+        errors(
+          conn,
+          {:error, "To use configuration from database migrate your settings to database."}
+        )
+      else
         conn
         |> put_view(ConfigView)
         |> render("index.json", %{configs: configs})
       end
+    end
+  end
+
+  def config_show(conn, _params) do
+    with :ok <- configurable_from_database(conn) do
+      configs = ConfigDB.get_all_as_keyword()
+
+      if configs == [] do
+        errors(
+          conn,
+          {:error, "To use configuration from database migrate your settings to database."}
+        )
+      else
+        merged =
+          Pleroma.Config.Holder.config()
+          |> ConfigDB.merge(configs)
+          |> Enum.map(fn {group, values} ->
+            Enum.map(values, fn {key, value} ->
+              db =
+                if configs[group][key] do
+                  ConfigDB.get_db_keys(configs[group][key], key)
+                end
+
+              db_value = configs[group][key]
+
+              merged_value =
+                if !is_nil(db_value) and Keyword.keyword?(db_value) and
+                     ConfigDB.sub_key_full_update?(group, key, Keyword.keys(db_value)) do
+                  ConfigDB.merge_group(group, key, value, db_value)
+                else
+                  value
+                end
+
+              setting = %{
+                group: ConfigDB.convert(group),
+                key: ConfigDB.convert(key),
+                value: ConfigDB.convert(merged_value)
+              }
+
+              if db, do: Map.put(setting, :db, db), else: setting
+            end)
+          end)
+          |> List.flatten()
+
+        json(conn, %{configs: merged})
+      end
+    end
+  end
 
   def config_update(conn, %{"configs" => configs}) do
-    updated =
+    with :ok <- configurable_from_database(conn) do
-      if Pleroma.Config.get([:instance, :dynamic_configuration]) do
+      {_errors, results} =
-        updated =
         Enum.map(configs, fn
-            %{"group" => group, "key" => key, "delete" => "true"} = params ->
+          %{"group" => group, "key" => key, "delete" => true} = params ->
-              {:ok, config} = Config.delete(%{group: group, key: key, subkeys: params["subkeys"]})
+            ConfigDB.delete(%{group: group, key: key, subkeys: params["subkeys"]})
-              config
 
           %{"group" => group, "key" => key, "value" => value} ->
-              {:ok, config} = Config.update_or_create(%{group: group, key: key, value: value})
+            ConfigDB.update_or_create(%{group: group, key: key, value: value})
-              config
         end)
-          |> Enum.reject(&is_nil(&1))
+        |> Enum.split_with(fn result -> elem(result, 0) == :error end)
 
-        Pleroma.Config.TransferTask.load_and_update_env()
+      {deleted, updated} =
-        Mix.Tasks.Pleroma.Config.run(["migrate_from_db", Pleroma.Config.get(:env), "false"])
+        results
-        updated
+        |> Enum.map(fn {:ok, config} ->
-      else
+          Map.put(config, :db, ConfigDB.get_db_keys(config))
-        []
+        end)
-      end
+        |> Enum.split_with(fn config ->
+          Ecto.get_meta(config, :state) == :deleted
+        end)
+
+      Pleroma.Config.TransferTask.load_and_update_env(deleted)
+
+      Mix.Tasks.Pleroma.Config.run([
+        "migrate_from_db",
+        "--env",
+        to_string(Pleroma.Config.get(:env))
+      ])
 
       conn
       |> put_view(ConfigView)
       |> render("index.json", %{configs: updated})
     end
+  end
+
+  defp configurable_from_database(conn) do
+    if Pleroma.Config.get(:configurable_from_database) do
+      :ok
+    else
+      errors(
+        conn,
+        {:error, "To use this endpoint you need to enable configuration from database."}
+      )
+    end
+  end
 
   def reload_emoji(conn, _params) do
     Pleroma.Emoji.reload()

lib/pleroma/web/admin_api/config.ex

@@ -1,182 +0,0 @@
-# Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
-# SPDX-License-Identifier: AGPL-3.0-only
-
-defmodule Pleroma.Web.AdminAPI.Config do
-  use Ecto.Schema
-  import Ecto.Changeset
-  import Pleroma.Web.Gettext
-  alias __MODULE__
-  alias Pleroma.Repo
-
-  @type t :: %__MODULE__{}
-
-  schema "config" do
-    field(:key, :string)
-    field(:group, :string)
-    field(:value, :binary)
-
-    timestamps()
-  end
-
-  @spec get_by_params(map()) :: Config.t() | nil
-  def get_by_params(params), do: Repo.get_by(Config, params)
-
-  @spec changeset(Config.t(), map()) :: Changeset.t()
-  def changeset(config, params \\ %{}) do
-    config
-    |> cast(params, [:key, :group, :value])
-    |> validate_required([:key, :group, :value])
-    |> unique_constraint(:key, name: :config_group_key_index)
-  end
-
-  @spec create(map()) :: {:ok, Config.t()} | {:error, Changeset.t()}
-  def create(params) do
-    %Config{}
-    |> changeset(Map.put(params, :value, transform(params[:value])))
-    |> Repo.insert()
-  end
-
-  @spec update(Config.t(), map()) :: {:ok, Config} | {:error, Changeset.t()}
-  def update(%Config{} = config, %{value: value}) do
-    config
-    |> change(value: transform(value))
-    |> Repo.update()
-  end
-
-  @spec update_or_create(map()) :: {:ok, Config.t()} | {:error, Changeset.t()}
-  def update_or_create(params) do
-    with %Config{} = config <- Config.get_by_params(Map.take(params, [:group, :key])) do
-      Config.update(config, params)
-    else
-      nil -> Config.create(params)
-    end
-  end
-
-  @spec delete(map()) :: {:ok, Config.t()} | {:error, Changeset.t()}
-  def delete(params) do
-    with %Config{} = config <- Config.get_by_params(Map.delete(params, :subkeys)) do
-      if params[:subkeys] do
-        updated_value =
-          Keyword.drop(
-            :erlang.binary_to_term(config.value),
-            Enum.map(params[:subkeys], &do_transform_string(&1))
-          )
-
-        Config.update(config, %{value: updated_value})
-      else
-        Repo.delete(config)
-        {:ok, nil}
-      end
-    else
-      nil ->
-        err =
-          dgettext("errors", "Config with params %{params} not found", params: inspect(params))
-
-        {:error, err}
-    end
-  end
-
-  @spec from_binary(binary()) :: term()
-  def from_binary(binary), do: :erlang.binary_to_term(binary)
-
-  @spec from_binary_with_convert(binary()) :: any()
-  def from_binary_with_convert(binary) do
-    from_binary(binary)
-    |> do_convert()
-  end
-
-  defp do_convert(entity) when is_list(entity) do
-    for v <- entity, into: [], do: do_convert(v)
-  end
-
-  defp do_convert(%Regex{} = entity), do: inspect(entity)
-
-  defp do_convert(entity) when is_map(entity) do
-    for {k, v} <- entity, into: %{}, do: {do_convert(k), do_convert(v)}
-  end
-
-  defp do_convert({:dispatch, [entity]}), do: %{"tuple" => [":dispatch", [inspect(entity)]]}
-  defp do_convert({:partial_chain, entity}), do: %{"tuple" => [":partial_chain", inspect(entity)]}
-
-  defp do_convert(entity) when is_tuple(entity),
-    do: %{"tuple" => do_convert(Tuple.to_list(entity))}
-
-  defp do_convert(entity) when is_boolean(entity) or is_number(entity) or is_nil(entity),
-    do: entity
-
-  defp do_convert(entity) when is_atom(entity) do
-    string = to_string(entity)
-
-    if String.starts_with?(string, "Elixir."),
-      do: do_convert(string),
-      else: ":" <> string
-  end
-
-  defp do_convert("Elixir." <> module_name), do: module_name
-
-  defp do_convert(entity) when is_binary(entity), do: entity
-
-  @spec transform(any()) :: binary()
-  def transform(entity) when is_binary(entity) or is_map(entity) or is_list(entity) do
-    :erlang.term_to_binary(do_transform(entity))
-  end
-
-  def transform(entity), do: :erlang.term_to_binary(entity)
-
-  defp do_transform(%Regex{} = entity), do: entity
-
-  defp do_transform(%{"tuple" => [":dispatch", [entity]]}) do
-    {dispatch_settings, []} = do_eval(entity)
-    {:dispatch, [dispatch_settings]}
-  end
-
-  defp do_transform(%{"tuple" => [":partial_chain", entity]}) do
-    {partial_chain, []} = do_eval(entity)
-    {:partial_chain, partial_chain}
-  end
-
-  defp do_transform(%{"tuple" => entity}) do
-    Enum.reduce(entity, {}, fn val, acc -> Tuple.append(acc, do_transform(val)) end)
-  end
-
-  defp do_transform(entity) when is_map(entity) do
-    for {k, v} <- entity, into: %{}, do: {do_transform(k), do_transform(v)}
-  end
-
-  defp do_transform(entity) when is_list(entity) do
-    for v <- entity, into: [], do: do_transform(v)
-  end
-
-  defp do_transform(entity) when is_binary(entity) do
-    String.trim(entity)
-    |> do_transform_string()
-  end
-
-  defp do_transform(entity), do: entity
-
-  defp do_transform_string("~r/" <> pattern) do
-    modificator = String.split(pattern, "/") |> List.last()
-    pattern = String.trim_trailing(pattern, "/" <> modificator)
-
-    case modificator do
-      "" -> ~r/#{pattern}/
-      "i" -> ~r/#{pattern}/i
-      "u" -> ~r/#{pattern}/u
-      "s" -> ~r/#{pattern}/s
-    end
-  end
-
-  defp do_transform_string(":" <> atom), do: String.to_atom(atom)
-
-  defp do_transform_string(value) do
-    if String.starts_with?(value, "Pleroma") or String.starts_with?(value, "Phoenix"),
-      do: String.to_existing_atom("Elixir." <> value),
-      else: value
-  end
-
-  defp do_eval(entity) do
-    cleaned_string = String.replace(entity, ~r/[^\w|^{:,[|^,|^[|^\]^}|^\/|^\.|^"]^\s/, "")
-    Code.eval_string(cleaned_string, [], requires: [], macros: [])
-  end
-end

lib/pleroma/web/admin_api/views/config_view.ex

@@ -12,10 +12,16 @@ defmodule Pleroma.Web.AdminAPI.ConfigView do
   end
 
   def render("show.json", %{config: config}) do
-    %{
+    map = %{
       key: config.key,
       group: config.group,
-      value: Pleroma.Web.AdminAPI.Config.from_binary_with_convert(config.value)
+      value: Pleroma.ConfigDB.from_binary_with_convert(config.value)
     }
+
+    if config.db != [] do
+      Map.put(map, :db, config.db)
+    else
+      map
+    end
   end
 end

lib/pleroma/web/common_api/common_api.ex

@@ -85,9 +85,13 @@ defmodule Pleroma.Web.CommonAPI do
   def repeat(id_or_ap_id, user, params \\ %{}) do
     with %Activity{} = activity <- get_by_id_or_ap_id(id_or_ap_id),
          object <- Object.normalize(activity),
-         nil <- Utils.get_existing_announce(user.ap_id, object),
+         announce_activity <- Utils.get_existing_announce(user.ap_id, object),
          public <- public_announce?(object, params) do
+      if announce_activity do
+        {:ok, announce_activity, object}
+      else
         ActivityPub.announce(user, object, nil, true, public)
+      end
     else
       _ -> {:error, dgettext("errors", "Could not repeat")}
     end
@@ -105,8 +109,12 @@ defmodule Pleroma.Web.CommonAPI do
   def favorite(id_or_ap_id, user) do
     with %Activity{} = activity <- get_by_id_or_ap_id(id_or_ap_id),
          object <- Object.normalize(activity),
-         nil <- Utils.get_existing_like(user.ap_id, object) do
+         like_activity <- Utils.get_existing_like(user.ap_id, object) do
+      if like_activity do
+        {:ok, like_activity, object}
+      else
         ActivityPub.like(user, object)
+      end
     else
       _ -> {:error, dgettext("errors", "Could not favorite")}
     end

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

@@ -43,7 +43,7 @@ defmodule Pleroma.Web.MastodonAPI.SearchController do
     result =
       default_values
       |> Enum.map(fn {resource, default_value} ->
-        if params["type"] == nil or params["type"] == resource do
+        if params["type"] in [nil, resource] do
           {resource, fn -> resource_search(version, resource, query, options) end}
         else
           {resource, fn -> default_value end}

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

@@ -6,9 +6,9 @@ defmodule Pleroma.Web.MastodonAPI.SubscriptionController do
   @moduledoc "The module represents functions to manage user subscriptions."
   use Pleroma.Web, :controller
 
+  alias Pleroma.Web.MastodonAPI.PushSubscriptionView, as: View
   alias Pleroma.Web.Push
   alias Pleroma.Web.Push.Subscription
-  alias Pleroma.Web.MastodonAPI.PushSubscriptionView, as: View
 
   action_fallback(:errors)
 

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

@@ -77,10 +77,7 @@ defmodule Pleroma.Web.MastodonAPI.TimelineController do
     |> render("index.json", activities: activities, for: user, as: :activity)
   end
 
-  # GET /api/v1/timelines/tag/:tag
+  def hashtag_fetching(params, user, local_only) do
-  def hashtag(%{assigns: %{user: user}} = conn, params) do
-    local_only = truthy_param?(params["local"])
-
     tags =
       [params["tag"], params["any"]]
       |> List.flatten()
@@ -98,7 +95,7 @@ defmodule Pleroma.Web.MastodonAPI.TimelineController do
       |> Map.get("none", [])
       |> Enum.map(&String.downcase(&1))
 
-    activities =
+    _activities =
       params
       |> Map.put("type", "Create")
       |> Map.put("local_only", local_only)
@@ -109,6 +106,13 @@ defmodule Pleroma.Web.MastodonAPI.TimelineController do
       |> Map.put("tag_all", tag_all)
       |> Map.put("tag_reject", tag_reject)
       |> ActivityPub.fetch_public_activities()
+  end
+
+  # GET /api/v1/timelines/tag/:tag
+  def hashtag(%{assigns: %{user: user}} = conn, params) do
+    local_only = truthy_param?(params["local"])
+
+    activities = hashtag_fetching(params, user, local_only)
 
     conn
     |> add_link_headers(activities, %{"local" => local_only})

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

@@ -37,18 +37,37 @@ defmodule Pleroma.Web.MastodonAPI.NotificationView do
       }
 
       case mastodon_type do
-        "mention" -> put_status(response, activity, user)
+        "mention" ->
-        "favourite" -> put_status(response, parent_activity, user)
+          put_status(response, activity, user)
-        "reblog" -> put_status(response, parent_activity, user)
+
-        "move" -> put_target(response, activity, user)
+        "favourite" ->
-        "follow" -> response
+          put_status(response, parent_activity, user)
-        _ -> nil
+
+        "reblog" ->
+          put_status(response, parent_activity, user)
+
+        "move" ->
+          put_target(response, activity, user)
+
+        "follow" ->
+          response
+
+        "pleroma:emoji_reaction" ->
+          put_status(response, parent_activity, user) |> put_emoji(activity)
+
+        _ ->
+          nil
       end
     else
       _ -> nil
     end
   end
 
+  defp put_emoji(response, activity) do
+    response
+    |> Map.put(:emoji, activity.data["content"])
+  end
+
   defp put_status(response, activity, user) do
     Map.put(response, :status, StatusView.render("show.json", %{activity: activity, for: user}))
   end

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

@@ -253,6 +253,15 @@ defmodule Pleroma.Web.MastodonAPI.StatusView do
           nil
       end
 
+    emoji_reactions =
+      with %{data: %{"reactions" => emoji_reactions}} <- object do
+        Enum.map(emoji_reactions, fn [emoji, users] ->
+          [emoji, length(users)]
+        end)
+      else
+        _ -> []
+      end
+
     %{
       id: to_string(activity.id),
       uri: object.data["id"],
@@ -293,7 +302,8 @@ defmodule Pleroma.Web.MastodonAPI.StatusView do
         spoiler_text: %{"text/plain" => summary_plaintext},
         expires_at: expires_at,
         direct_conversation_id: direct_conversation_id,
-        thread_muted: thread_muted?
+        thread_muted: thread_muted?,
+        emoji_reactions: emoji_reactions
       }
     }
   end

lib/pleroma/web/oauth/oauth_controller.ex

@@ -14,10 +14,10 @@ defmodule Pleroma.Web.OAuth.OAuthController do
   alias Pleroma.Web.ControllerHelper
   alias Pleroma.Web.OAuth.App
   alias Pleroma.Web.OAuth.Authorization
+  alias Pleroma.Web.OAuth.Scopes
   alias Pleroma.Web.OAuth.Token
   alias Pleroma.Web.OAuth.Token.Strategy.RefreshToken
   alias Pleroma.Web.OAuth.Token.Strategy.Revoke, as: RevokeToken
-  alias Pleroma.Web.OAuth.Scopes
 
   require Logger
 

lib/pleroma/web/pleroma_api/controllers/pleroma_api_controller.ex

@@ -23,7 +23,7 @@ defmodule Pleroma.Web.PleromaAPI.PleromaAPIController do
   plug(
     OAuthScopesPlug,
     %{scopes: ["read:statuses"]}
-    when action in [:conversation, :conversation_statuses, :emoji_reactions_by]
+    when action in [:conversation, :conversation_statuses]
   )
 
   plug(
@@ -43,21 +43,21 @@ defmodule Pleroma.Web.PleromaAPI.PleromaAPIController do
 
   def emoji_reactions_by(%{assigns: %{user: user}} = conn, %{"id" => activity_id}) do
     with %Activity{} = activity <- Activity.get_by_id_with_object(activity_id),
-         %Object{data: %{"reactions" => emoji_reactions}} <- Object.normalize(activity) do
+         %Object{data: %{"reactions" => emoji_reactions}} when is_list(emoji_reactions) <-
+           Object.normalize(activity) do
       reactions =
         emoji_reactions
-        |> Enum.map(fn {emoji, users} ->
+        |> Enum.map(fn [emoji, users] ->
           users = Enum.map(users, &User.get_cached_by_ap_id/1)
           {emoji, AccountView.render("index.json", %{users: users, for: user, as: :user})}
         end)
-        |> Enum.into(%{})
 
       conn
       |> json(reactions)
     else
       _e ->
         conn
-        |> json(%{})
+        |> json([])
     end
   end
 

lib/pleroma/web/router.ex

@@ -195,7 +195,7 @@ defmodule Pleroma.Web.Router do
 
     get("/config", AdminAPIController, :config_show)
     post("/config", AdminAPIController, :config_update)
-    get("/config/migrate_to_db", AdminAPIController, :migrate_to_db)
+    get("/config/descriptions", AdminAPIController, :config_descriptions)
     get("/config/migrate_from_db", AdminAPIController, :migrate_from_db)
 
     get("/moderation_log", AdminAPIController, :list_log)

lib/pleroma/workers/attachments_cleanup_worker.ex

@@ -0,0 +1,88 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Workers.AttachmentsCleanupWorker do
+  import Ecto.Query
+
+  alias Pleroma.Object
+  alias Pleroma.Repo
+
+  use Pleroma.Workers.WorkerHelper, queue: "attachments_cleanup"
+
+  @impl Oban.Worker
+  def perform(
+        %{"object" => %{"data" => %{"attachment" => [_ | _] = attachments, "actor" => actor}}},
+        _job
+      ) do
+    hrefs =
+      Enum.flat_map(attachments, fn attachment ->
+        Enum.map(attachment["url"], & &1["href"])
+      end)
+
+    names = Enum.map(attachments, & &1["name"])
+
+    uploader = Pleroma.Config.get([Pleroma.Upload, :uploader])
+
+    # find all objects for copies of the attachments, name and actor doesn't matter here
+    delete_ids =
+      from(o in Object,
+        where:
+          fragment(
+            "to_jsonb(array(select jsonb_array_elements((?)#>'{url}') ->> 'href' where jsonb_typeof((?)#>'{url}') = 'array'))::jsonb \\?| (?)",
+            o.data,
+            o.data,
+            ^hrefs
+          )
+      )
+      # The query above can be time consumptive on large instances until we
+      # refactor how uploads are stored
+      |> Repo.all(timout: :infinity)
+      # we should delete 1 object for any given attachment, but don't delete
+      # files if there are more than 1 object for it
+      |> Enum.reduce(%{}, fn %{
+                               id: id,
+                               data: %{
+                                 "url" => [%{"href" => href}],
+                                 "actor" => obj_actor,
+                                 "name" => name
+                               }
+                             },
+                             acc ->
+        Map.update(acc, href, %{id: id, count: 1}, fn val ->
+          case obj_actor == actor and name in names do
+            true ->
+              # set id of the actor's object that will be deleted
+              %{val | id: id, count: val.count + 1}
+
+            false ->
+              # another actor's object, just increase count to not delete file
+              %{val | count: val.count + 1}
+          end
+        end)
+      end)
+      |> Enum.map(fn {href, %{id: id, count: count}} ->
+        # only delete files that have single instance
+        with 1 <- count do
+          prefix =
+            case Pleroma.Config.get([Pleroma.Upload, :base_url]) do
+              nil -> "media"
+              _ -> ""
+            end
+
+          base_url = Pleroma.Config.get([__MODULE__, :base_url], Pleroma.Web.base_url())
+
+          file_path = String.trim_leading(href, "#{base_url}/#{prefix}")
+
+          uploader.delete_file(file_path)
+        end
+
+        id
+      end)
+
+    from(o in Object, where: o.id in ^delete_ids)
+    |> Repo.delete_all()
+  end
+
+  def perform(%{"object" => _object}, _job), do: :ok
+end

mix.exs

@@ -124,7 +124,7 @@ defmodule Pleroma.Mixfile do
       {:earmark, "~> 1.3"},
       {:bbcode, "~> 0.1.1"},
       {:ex_machina, "~> 2.3", only: :test},
-      {:credo, "~> 0.9.3", only: [:dev, :test]},
+      {:credo, "~> 1.1.0", only: [:dev, :test], runtime: false},
       {:mock, "~> 0.3.3", only: :test},
       {:crypt,
        git: "https://github.com/msantos/crypt", ref: "1f2b58927ab57e72910191a7ebaeff984382a1d3"},

mix.lock

@@ -16,7 +16,7 @@
   "cors_plug": {:hex, :cors_plug, "1.5.2", "72df63c87e4f94112f458ce9d25800900cc88608c1078f0e4faddf20933eda6e", [:mix], [{:plug, "~> 1.3 or ~> 1.4 or ~> 1.5", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm"},
   "cowboy": {:hex, :cowboy, "2.7.0", "91ed100138a764355f43316b1d23d7ff6bdb0de4ea618cb5d8677c93a7a2f115", [:rebar3], [{:cowlib, "~> 2.8.0", [hex: :cowlib, repo: "hexpm", optional: false]}, {:ranch, "~> 1.7.1", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm"},
   "cowlib": {:hex, :cowlib, "2.8.0", "fd0ff1787db84ac415b8211573e9a30a3ebe71b5cbff7f720089972b2319c8a4", [:rebar3], [], "hexpm"},
-  "credo": {:hex, :credo, "0.9.3", "76fa3e9e497ab282e0cf64b98a624aa11da702854c52c82db1bf24e54ab7c97a", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:poison, ">= 0.0.0", [hex: :poison, repo: "hexpm", optional: false]}], "hexpm"},
+  "credo": {:hex, :credo, "1.1.5", "caec7a3cadd2e58609d7ee25b3931b129e739e070539ad1a0cd7efeeb47014f4", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm"},
   "crontab": {:hex, :crontab, "1.1.8", "2ce0e74777dfcadb28a1debbea707e58b879e6aa0ffbf9c9bb540887bce43617", [:mix], [{:ecto, "~> 1.0 or ~> 2.0 or ~> 3.0", [hex: :ecto, repo: "hexpm", optional: true]}], "hexpm"},
   "crypt": {:git, "https://github.com/msantos/crypt", "1f2b58927ab57e72910191a7ebaeff984382a1d3", [ref: "1f2b58927ab57e72910191a7ebaeff984382a1d3"]},
   "custom_base": {:hex, :custom_base, "0.2.1", "4a832a42ea0552299d81652aa0b1f775d462175293e99dfbe4d7dbaab785a706", [:mix], [], "hexpm"},
@@ -63,7 +63,7 @@
   "mime": {:hex, :mime, "1.3.1", "30ce04ab3175b6ad0bdce0035cba77bba68b813d523d1aac73d9781b4d193cf8", [:mix], [], "hexpm"},
   "mimerl": {:hex, :mimerl, "1.2.0", "67e2d3f571088d5cfd3e550c383094b47159f3eee8ffa08e64106cdf5e981be3", [:rebar3], [], "hexpm"},
   "mochiweb": {:hex, :mochiweb, "2.18.0", "eb55f1db3e6e960fac4e6db4e2db9ec3602cc9f30b86cd1481d56545c3145d2e", [:rebar3], [], "hexpm"},
-  "mock": {:hex, :mock, "0.3.3", "42a433794b1291a9cf1525c6d26b38e039e0d3a360732b5e467bfc77ef26c914", [:mix], [{:meck, "~> 0.8.13", [hex: :meck, repo: "hexpm", optional: false]}], "hexpm"},
+  "mock": {:hex, :mock, "0.3.4", "c5862eb3b8c64237f45f586cf00c9d892ba07bb48305a43319d428ce3c2897dd", [:mix], [{:meck, "~> 0.8.13", [hex: :meck, repo: "hexpm", optional: false]}], "hexpm"},
   "mogrify": {:hex, :mogrify, "0.6.1", "de1b527514f2d95a7bbe9642eb556061afb337e220cf97adbf3a4e6438ed70af", [:mix], [], "hexpm"},
   "mox": {:hex, :mox, "0.5.1", "f86bb36026aac1e6f924a4b6d024b05e9adbed5c63e8daa069bd66fb3292165b", [:mix], [], "hexpm"},
   "mrfcontrib": {:git, "https://github.com/FloatingGhost/pleroma-mrf-contrib.git", "8cecf964b6f9686ab11687e8267bc238a19bd3b6", [tag: "v0.0.5"]},

priv/static/adminfe/chunk-15fa.5a5f973d.css

@@ -0,0 +1 @@
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priv/static/adminfe/chunk-18e1.dd09fe2e.css

@@ -0,0 +1 @@
+.errPage-container[data-v-ab9be52c]{width:800px;max-width:100%;margin:100px auto}.errPage-container .pan-back-btn[data-v-ab9be52c]{background:#008489;color:#fff;border:none!important}.errPage-container .pan-gif[data-v-ab9be52c]{margin:0 auto;display:block}.errPage-container .pan-img[data-v-ab9be52c]{display:block;margin:0 auto;width:100%}.errPage-container .text-jumbo[data-v-ab9be52c]{font-size:60px;font-weight:700;color:#484848}.errPage-container .list-unstyled[data-v-ab9be52c]{font-size:14px}.errPage-container .list-unstyled li[data-v-ab9be52c]{padding-bottom:5px}.errPage-container .list-unstyled a[data-v-ab9be52c]{color:#008489;text-decoration:none}.errPage-container .list-unstyled a[data-v-ab9be52c]:hover{text-decoration:underline}

priv/static/adminfe/chunk-1ada.90dffac4.css

@@ -0,0 +1 @@
+@supports (-webkit-mask:none) and (not (cater-color:#fff)){.login-container .el-input input{color:#fff}.login-container .el-input input:first-line{color:#eee}}.login-container .el-input{display:inline-block;height:47px;width:85%}.login-container .el-input input{background:transparent;border:0;-webkit-appearance:none;border-radius:0;padding:12px 5px 12px 15px;color:#eee;height:47px;caret-color:#fff}.login-container .el-input input:-webkit-autofill{-webkit-box-shadow:0 0 0 1000px #283443 inset!important;-webkit-text-fill-color:#fff!important}.login-container .el-form-item{border:1px solid hsla(0,0%,100%,.1);background:rgba(0,0,0,.1);border-radius:5px;color:#454545}.login-container .login-button{width:100%;margin:0 0 10px}.login-container .omit-host-note{color:#596f8c;font-size:.8em;font-style:italic;margin:-20px 0 15px;padding:3px 0 0 15px}.login-container[data-v-5bb13616]{min-height:100%;width:100%;background-color:#2d3a4b;overflow:hidden}.login-container .login-form[data-v-5bb13616]{position:relative;width:520px;max-width:100%;padding:160px 35px 0;margin:0 auto;overflow:hidden}.login-container .tips[data-v-5bb13616]{font-size:14px;color:#fff;margin-bottom:10px}.login-container .tips span[data-v-5bb13616]:first-of-type{margin-right:16px}.login-container .svg-container[data-v-5bb13616]{padding:6px 5px 6px 15px;color:#889aa4;vertical-align:middle;width:30px;display:inline-block}.login-container .title-container[data-v-5bb13616]{position:relative}.login-container .title-container .title[data-v-5bb13616]{font-size:26px;color:#eee;margin:0 auto 40px;text-align:center;font-weight:700}.login-container .title-container .set-language[data-v-5bb13616]{color:#fff;position:absolute;top:3px;font-size:18px;right:0;cursor:pointer}.login-container .show-pwd[data-v-5bb13616]{position:absolute;right:10px;top:7px;font-size:16px;color:#889aa4;cursor:pointer;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.login-container .thirdparty-button[data-v-5bb13616]{position:absolute;right:0;bottom:6px}

priv/static/adminfe/chunk-2aa6.8ce63ac0.css

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priv/static/adminfe/chunk-3d8e.48523459.css

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priv/static/adminfe/chunk-4dc2.25d3bcab.css

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priv/static/adminfe/chunk-6b7b.1ab4da3b.css

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priv/static/adminfe/chunk-6e77.57276c93.css

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priv/static/adminfe/chunk-7f8e.1d10e1c7.css

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priv/static/adminfe/index.html

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priv/static/adminfe/static/js/chunk-18e1.c5abe3f2.js

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