- **Breaking:** Configuration: move from Pleroma.Mailer to Pleroma.Emails.Mailer
- Enforcement of OAuth scopes
- Add multiple use/time expiring invite token
- Restyled OAuth pages to fit with Pleroma's default theme
- Link/mention/hashtag detection is now handled by [auto_linker](https://git.pleroma.social/pleroma/auto_linker)
- NodeInfo: Return `safe_dm_mentions` feature flag
- Federation: Expand the audience of delete activities to all recipients of the deleted object
- Federation: Removed `inReplyToStatusId` from objects
- Configuration: Dedupe enabled by default
- Configuration: Added `extra_cookie_attrs` for setting non-standard cookie attributes. Defaults to ["SameSite=Lax"] so that remote follows work.
- Pleroma API: Support for emoji tags in `/api/pleroma/emoji` resulting in a breaking API change
- Mastodon API: Support for `exclude_types`, `limit` and `min_id` in `/api/v1/notifications`
- Mastodon API: Add `languages` and `registrations` to `/api/v1/instance`
- Mastodon API: Provide plaintext versions of cw/content in the Status entity
- Mastodon API: Add `pleroma.conversation_id` field to the Status entity
- Mastodon API: Add `pleroma.tags`, `pleroma.relationship{}`, `pleroma.is_moderator`, `pleroma.is_admin`, `pleroma.confirmation_pending` fields to the User entity
- Mastodon API: Add `pleroma.is_seen` to the Notification entity
- Mastodon API: Add `pleroma.local` to the Status entity
- Mastodon API: Add `preview` parameter to `POST /api/v1/statuses`
- Mastodon API: Add `with_muted` parameter to timeline endpoints
- Mastodon API: Actual reblog hiding instead of a dummy
- Mastodon API: Remove attachment limit in the Status entity
- Deps: Updated Cowboy to 2.6
- Deps: Updated Ecto to 3.0.7
### Fixed
- Followers counter not being updated when a follower is blocked
- Deactivated users being able to request an access token
- Limit on request body in rich media/relme parsers being ignored resulting in a possible memory leak
- proper Twitter Card generation instead of a dummy
- NodeInfo: Include admins in `staffAccounts`
- ActivityPub: Crashing when requesting empty local user's outbox
- Federation: Handling of objects without `summary` property
- Federation: Add a language tag to activities as required by ActivityStreams 2.0
- Federation: Do not federate avatar/banner if set to default allowing other servers/clients to use their defaults
- Federation: Cope with missing or explicitly nulled address lists
- Federation: Explicitly ensure activities addressed to `as:Public` become addressed to the followers collection
- Federation: Better cope with actors which do not declare a followers collection and use `as:Public` with these semantics
- MediaProxy: Parse name from content disposition headers even for non-whitelisted types
- MediaProxy: S3 link encoding
- Rich Media: Reject any data which cannot be explicitly encoded into JSON
- Mastodon API: `/api/v1/favourites` serving only public activities
- Mastodon API: Reblogs having `in_reply_to_id` - `null` even when they are replies
- Mastodon API: Streaming API broadcasting wrong activity id
- Mastodon API: 500 errors when requesting a card for a private conversation
## [0.9.9999] - 2019-04-05
### Security
- Mastodon API: Fix content warnings skipping HTML sanitization
## [0.9.999] - 2019-03-13
Frontend changes only.
### Added
- Added floating action button for posting status on mobile
### Changed
- Changed user-settings icon to a pencil
### Fixed
- Keyboard shortcuts activating when typing a message
- Gaps when scrolling down on a timeline after showing new
## [0.9.99] - 2019-03-08
### Changed
- Update the frontend to the 0.9.99 tag
### Fixed
- Sign the date header in federation to fix Mastodon federation.
## [0.9.9] - 2019-02-22
This is our first stable release.
diff --git a/README.md b/README.md
index c45190fc3..987f973ea 100644
--- a/README.md
+++ b/README.md
@@ -1,77 +1,77 @@
# Pleroma
-**Note**: This readme as well as complete documentation is also availible at <https://docs-develop.pleroma.social>
+**Note**: This readme as well as complete documentation is also available at <https://docs-develop.pleroma.social>
## About Pleroma
Pleroma is a microblogging server software that can federate (= exchange messages with) other servers that support the same federation standards (OStatus and ActivityPub). What that means is that you can host a server for yourself or your friends and stay in control of your online identity, but still exchange messages with people on larger servers. Pleroma will federate with all servers that implement either OStatus or ActivityPub, like Friendica, GNU Social, Hubzilla, Mastodon, Misskey, Peertube, and Pixelfed.
Pleroma is written in Elixir, high-performance and can run on small devices like a Raspberry Pi.
For clients it supports both the [GNU Social API with Qvitter extensions](https://twitter-api.readthedocs.io/en/latest/index.html) and the [Mastodon client API](https://docs.joinmastodon.org/api/guidelines/).
- [Client Applications for Pleroma](https://docs-develop.pleroma.social/clients.html)
No release has been made yet, but several servers have been online for months already. If you want to run your own server, feel free to contact us at @lain@pleroma.soykaf.com or in our dev chat at #pleroma on freenode or via matrix at <https://matrix.heldscal.la/#/room/#freenode_#pleroma:matrix.org>.
## Installation
### Docker
While we don’t provide docker files, other people have written very good ones. Take a look at <https://github.com/angristan/docker-pleroma> or <https://github.com/sn0w/pleroma-docker>.
### Dependencies
* Postgresql version 9.6 or newer
* Elixir version 1.7 or newer. If your distribution only has an old version available, check [Elixir’s install page](https://elixir-lang.org/install.html) or use a tool like [asdf](https://github.com/asdf-vm/asdf).
* Build-essential tools
### Configuration
* Run `mix deps.get` to install elixir dependencies.
* Run `mix pleroma.instance gen`. This will ask you questions about your instance and generate a configuration file in `config/generated_config.exs`. Check that and copy it to either `config/dev.secret.exs` or `config/prod.secret.exs`. It will also create a `config/setup_db.psql`, which you should run as the PostgreSQL superuser (i.e., `sudo -u postgres psql -f config/setup_db.psql`). It will create the database, user, and password you gave `mix pleroma.gen.instance` earlier, as well as set up the necessary extensions in the database. PostgreSQL superuser privileges are only needed for this step.
* For these next steps, the default will be to run pleroma using the dev configuration file, `config/dev.secret.exs`. To run them using the prod config file, prefix each command at the shell with `MIX_ENV=prod`. For example: `MIX_ENV=prod mix phx.server`. Documentation for the config can be found at [`docs/config.md`](docs/config.md) in the repository, or at the "Configuration" page on <https://docs-develop.pleroma.social/config.html>
* Run `mix ecto.migrate` to run the database migrations. You will have to do this again after certain updates.
* You can check if your instance is configured correctly by running it with `mix phx.server` and checking the instance info endpoint at `/api/v1/instance`. If it shows your uri, name and email correctly, you are configured correctly. If it shows something like `localhost:4000`, your configuration is probably wrong, unless you are running a local development setup.
* The common and convenient way for adding HTTPS is by using Nginx as a reverse proxy. You can look at example Nginx configuration in `installation/pleroma.nginx`. If you need TLS/SSL certificates for HTTPS, you can look get some for free with letsencrypt: <https://letsencrypt.org/>. The simplest way to obtain and install a certificate is to use [Certbot.](https://certbot.eff.org) Depending on your specific setup, certbot may be able to get a certificate and configure your web server automatically.
## Running
* By default, it listens on port 4000 (TCP), so you can access it on <http://localhost:4000/> (if you are on the same machine). In case of an error it will restart automatically.
### Frontends
Pleroma comes with two frontends. The first one, Pleroma FE, can be reached by normally visiting the site. The other one, based on the Mastodon project, can be found by visiting the /web path of your site.
### As systemd service (with provided .service file)
Example .service file can be found in `installation/pleroma.service`. Copy this to `/etc/systemd/system/`. Running `systemctl enable --now pleroma.service` will run Pleroma and enable startup on boot. Logs can be watched by using `journalctl -fu pleroma.service`.
### As OpenRC service (with provided RC file)
Copy `installation/init.d/pleroma` to `/etc/init.d/pleroma`. You can add it to the services ran by default with: `rc-update add pleroma`
### Standalone/run by other means
Run `mix phx.server` in repository’s root, it will output log into stdout/stderr.
### Using an upstream proxy for federation
Add the following to your `dev.secret.exs` or `prod.secret.exs` if you want to proxify all http requests that Pleroma makes to an upstream proxy server:
```elixir
config :pleroma, :http,
proxy_url: "127.0.0.1:8123"
```
This is useful for running Pleroma inside Tor or I2P.
## Customization and contribution
The [Pleroma Documentation](https://docs-develop.pleroma.social/readme.html) offers manuals and guides on how to further customize your instance to your liking and how you can contribute to the project.
## Troubleshooting
### No incoming federation
Check that you correctly forward the `host` header to the backend. It is needed to validate signatures.
# Differences in Mastodon API responses from vanilla Mastodon
A Pleroma instance can be identified by "<Mastodon version> (compatible; Pleroma <version>)" present in `version` field in response from `/api/v1/instance`
## Flake IDs
Pleroma uses 128-bit ids as opposed to Mastodon's 64 bits. However just like Mastodon's ids they are sortable strings
## Attachment cap
Some apps operate under the assumption that no more than 4 attachments can be returned or uploaded. Pleroma however does not enforce any limits on attachment count neither when returning the status object nor when posting.
## Timelines
Adding the parameter `with_muted=true` to the timeline queries will also return activities by muted (not by blocked!) users.
## Statuses
Has these additional fields under the `pleroma` object:
- `local`: true if the post was made on the local instance.
- `conversation_id`: the ID of the conversation the status is associated with (if any)
- `content`: a map consisting of alternate representations of the `content` property with the key being it's mimetype. Currently the only alternate representation supported is `text/plain`
- `spoiler_text`: a map consisting of alternate representations of the `spoiler_text` property with the key being it's mimetype. Currently the only alternate representation supported is `text/plain`
## Attachments
Has these additional fields under the `pleroma` object:
- `mime_type`: mime type of the attachment.
## Accounts
- `/api/v1/accounts/:id`: The `id` parameter can also be the `nickname` of the user. This only works in this endpoint, not the deeper nested ones for following etc.
Has these additional fields under the `pleroma` object:
- `tags`: Lists an array of tags for the user
- `relationship{}`: Includes fields as documented for Mastodon API https://docs.joinmastodon.org/api/entities/#relationship
- `is_moderator`: boolean, true if user is a moderator
- `is_admin`: boolean, true if user is an admin
- `confirmation_pending`: boolean, true if a new user account is waiting on email confirmation to be activated
+## Account Search
+
+Behavior has changed:
+
+- `/api/v1/accounts/search`: Does not require authentication
+
## Notifications
Has these additional fields under the `pleroma` object:
- `is_seen`: true if the notification was read by the user
## POST `/api/v1/statuses`
Additional parameters can be added to the JSON body/Form data:
- `preview`: boolean, if set to `true` the post won't be actually posted, but the status entitiy would still be rendered back. This could be useful for previewing rich text/custom emoji, for example.
diff --git a/docs/config.md b/docs/config.md
index d618c5dde..5a97033b2 100644
--- a/docs/config.md
+++ b/docs/config.md
@@ -1,488 +1,489 @@
# Configuration
This file describe the configuration, it is recommended to edit the relevant *.secret.exs file instead of the others founds in the ``config`` directory.
If you run Pleroma with ``MIX_ENV=prod`` the file is ``prod.secret.exs``, otherwise it is ``dev.secret.exs``.
## Pleroma.Upload
* `uploader`: Select which `Pleroma.Uploaders` to use
* `filters`: List of `Pleroma.Upload.Filter` to use.
* `link_name`: When enabled Pleroma will add a `name` parameter to the url of the upload, for example `https://instance.tld/media/corndog.png?name=corndog.png`. This is needed to provide the correct filename in Content-Disposition headers when using filters like `Pleroma.Upload.Filter.Dedupe`
* `base_url`: The base URL to access a user-uploaded file. Useful when you want to proxy the media files via another host.
* `proxy_remote`: If you\'re using a remote uploader, Pleroma will proxy media requests instead of redirecting to it.
* `proxy_opts`: Proxy options, see `Pleroma.ReverseProxy` documentation.
Note: `strip_exif` has been replaced by `Pleroma.Upload.Filter.Mogrify`.
## Pleroma.Uploaders.Local
* `uploads`: Which directory to store the user-uploads in, relative to pleroma’s working directory
## Pleroma.Upload.Filter.Mogrify
* `args`: List of actions for the `mogrify` command like `"strip"` or `["strip", "auto-orient", {"impode", "1"}]`.
## Pleroma.Upload.Filter.Dedupe
No specific configuration.
## Pleroma.Upload.Filter.AnonymizeFilename
This filter replaces the filename (not the path) of an upload. For complete obfuscation, add
`Pleroma.Upload.Filter.Dedupe` before AnonymizeFilename.
* `text`: Text to replace filenames in links. If empty, `{random}.extension` will be used.
## Pleroma.Emails.Mailer
* `adapter`: one of the mail adapters listed in [Swoosh readme](https://github.com/swoosh/swoosh#adapters), or `Swoosh.Adapters.Local` for in-memory mailbox.
* `api_key` / `password` and / or other adapter-specific settings, per the above documentation.
An example for Sendgrid adapter:
```exs
config :pleroma, Pleroma.Emails.Mailer,
adapter: Swoosh.Adapters.Sendgrid,
api_key: "YOUR_API_KEY"
```
An example for SMTP adapter:
```exs
config :pleroma, Pleroma.Emails.Mailer,
adapter: Swoosh.Adapters.SMTP,
relay: "smtp.gmail.com",
username: "YOUR_USERNAME@gmail.com",
password: "YOUR_SMTP_PASSWORD",
port: 465,
ssl: true,
tls: :always,
auth: :always
```
## :uri_schemes
* `valid_schemes`: List of the scheme part that is considered valid to be an URL
## :instance
* `name`: The instance’s name
* `email`: Email used to reach an Administrator/Moderator of the instance
* `notify_email`: Email used for notifications.
* `description`: The instance’s description, can be seen in nodeinfo and ``/api/v1/instance``
* `limit`: Posts character limit (CW/Subject included in the counter)
* `remote_limit`: Hard character limit beyond which remote posts will be dropped.
* `upload_limit`: File size limit of uploads (except for avatar, background, banner)
* `avatar_upload_limit`: File size limit of user’s profile avatars
* `background_upload_limit`: File size limit of user’s profile backgrounds
* `banner_upload_limit`: File size limit of user’s profile banners
* `registrations_open`: Enable registrations for anyone, invitations can be enabled when false.
* `invites_enabled`: Enable user invitations for admins (depends on `registrations_open: false`).
* `account_activation_required`: Require users to confirm their emails before signing in.
* `federating`: Enable federation with other instances
* `federation_reachability_timeout_days`: Timeout (in days) of each external federation target being unreachable prior to pausing federating to it.
* `allow_relay`: Enable Pleroma’s Relay, which makes it possible to follow a whole instance
* `rewrite_policy`: Message Rewrite Policy, either one or a list. Here are the ones available by default:
* `Pleroma.Web.ActivityPub.MRF.DropPolicy`: Drops all activities. It generally doesn’t makes sense to use in production
* `Pleroma.Web.ActivityPub.MRF.SimplePolicy`: Restrict the visibility of activities from certains instances (See ``:mrf_simple`` section)
* `Pleroma.Web.ActivityPub.MRF.RejectNonPublic`: Drops posts with non-public visibility settings (See ``:mrf_rejectnonpublic`` section)
* `Pleroma.Web.ActivityPub.MRF.EnsureRePrepended`: Rewrites posts to ensure that replies to posts with subjects do not have an identical subject and instead begin with re:.
* `public`: Makes the client API in authentificated mode-only except for user-profiles. Useful for disabling the Local Timeline and The Whole Known Network.
* `quarantined_instances`: List of ActivityPub instances where private(DMs, followers-only) activities will not be send.
* `managed_config`: Whenether the config for pleroma-fe is configured in this config or in ``static/config.json``
* `allowed_post_formats`: MIME-type list of formats allowed to be posted (transformed into HTML)
* `finmoji_enabled`: Whenether to enable the finmojis in the custom emojis.
* `mrf_transparency`: Make the content of your Message Rewrite Facility settings public (via nodeinfo).
* `scope_copy`: Copy the scope (private/unlisted/public) in replies to posts by default.
* `subject_line_behavior`: Allows changing the default behaviour of subject lines in replies. Valid values:
* "email": Copy and preprend re:, as in email.
* "masto": Copy verbatim, as in Mastodon.
* "noop": Don't copy the subject.
* `always_show_subject_input`: When set to false, auto-hide the subject field when it's empty.
* `extended_nickname_format`: Set to `true` to use extended local nicknames format (allows underscores/dashes). This will break federation with
older software for theses nicknames.
* `max_pinned_statuses`: The maximum number of pinned statuses. `0` will disable the feature.
* `autofollowed_nicknames`: Set to nicknames of (local) users that every new user should automatically follow.
* `no_attachment_links`: Set to true to disable automatically adding attachment link text to statuses
* `welcome_message`: A message that will be send to a newly registered users as a direct message.
* `welcome_user_nickname`: The nickname of the local user that sends the welcome message.
* `max_report_comment_size`: The maximum size of the report comment (Default: `1000`)
* `safe_dm_mentions`: If set to true, only mentions at the beginning of a post will be used to address people in direct messages. This is to prevent accidental mentioning of people when talking about them (e.g. "@friend hey i really don't like @enemy"). (Default: `false`)
## :logger
* `backends`: `:console` is used to send logs to stdout, `{ExSyslogger, :ex_syslogger}` to log to syslog, and `Quack.Logger` to log to Slack
An example to enable ONLY ExSyslogger (f/ex in ``prod.secret.exs``) with info and debug suppressed:
```
config :logger,
backends: [{ExSyslogger, :ex_syslogger}]
config :logger, :ex_syslogger,
level: :warn
```
Another example, keeping console output and adding the pid to syslog output:
See the [Quack Github](https://github.com/azohra/quack) for more details
## :frontend_configurations
This can be used to configure a keyword list that keeps the configuration data for any kind of frontend. By default, settings for `pleroma_fe` and `masto_fe` are configured.
Frontends can access these settings at `/api/pleroma/frontend_configurations`
To add your own configuration for PleromaFE, use it like this:
These settings need to be complete, they will override the defaults. See `priv/static/static/config.json` for the available keys.
## :fe
__THIS IS DEPRECATED__
If you are using this method, please change it to the `frontend_configurations` method. Please set this option to false in your config like this: `config :pleroma, :fe, false`.
This section is used to configure Pleroma-FE, unless ``:managed_config`` in ``:instance`` is set to false.
* `theme`: Which theme to use, they are defined in ``styles.json``
* `logo`: URL of the logo, defaults to Pleroma’s logo
* `logo_mask`: Whether to use only the logo's shape as a mask (true) or as a regular image (false)
* `logo_margin`: What margin to use around the logo
* `background`: URL of the background, unless viewing a user profile with a background that is set
* `redirect_root_no_login`: relative URL which indicates where to redirect when a user isn’t logged in.
* `redirect_root_login`: relative URL which indicates where to redirect when a user is logged in.
* `show_instance_panel`: Whenether to show the instance’s specific panel.
* `scope_options_enabled`: Enable setting an notice visibility and subject/CW when posting
* `formatting_options_enabled`: Enable setting a formatting different than plain-text (ie. HTML, Markdown) when posting, relates to ``:instance, allowed_post_formats``
* `collapse_message_with_subjects`: When a message has a subject(aka Content Warning), collapse it by default
* `media_removal`: List of instances to remove medias from
* `media_nsfw`: List of instances to put medias as NSFW(sensitive) from
* `federated_timeline_removal`: List of instances to remove from Federated (aka The Whole Known Network) Timeline
* `reject`: List of instances to reject any activities from
* `accept`: List of instances to accept any activities from
## :mrf_rejectnonpublic
* `allow_followersonly`: whether to allow followers-only posts
* `allow_direct`: whether to allow direct messages
## :mrf_hellthread
* `delist_threshold`: Number of mentioned users after which the message gets delisted (the message can still be seen, but it will not show up in public timelines and mentioned users won't get notifications about it). Set to 0 to disable.
* `reject_threshold`: Number of mentioned users after which the messaged gets rejected. Set to 0 to disable.
## :mrf_keyword
* `reject`: A list of patterns which result in message being rejected, each pattern can be a string or a [regular expression](https://hexdocs.pm/elixir/Regex.html)
* `federated_timeline_removal`: A list of patterns which result in message being removed from federated timelines (a.k.a unlisted), each pattern can be a string or a [regular expression](https://hexdocs.pm/elixir/Regex.html)
* `replace`: A list of tuples containing `{pattern, replacement}`, `pattern` can be a string or a [regular expression](https://hexdocs.pm/elixir/Regex.html)
## :media_proxy
* `enabled`: Enables proxying of remote media to the instance’s proxy
* `base_url`: The base URL to access a user-uploaded file. Useful when you want to proxy the media files via another host/CDN fronts.
* `proxy_opts`: All options defined in `Pleroma.ReverseProxy` documentation, defaults to `[max_body_length: (25*1_048_576)]`.
## :gopher
* `enabled`: Enables the gopher interface
* `ip`: IP address to bind to
* `port`: Port to bind to
* `dstport`: Port advertised in urls (optional, defaults to `port`)
## Pleroma.Web.Endpoint
`Phoenix` endpoint configuration, all configuration options can be viewed [here](https://hexdocs.pm/phoenix/Phoenix.Endpoint.html#module-dynamic-configuration), only common options are listed here
* `http` - a list containing http protocol configuration, all configuration options can be viewed [here](https://hexdocs.pm/plug_cowboy/Plug.Cowboy.html#module-options), only common options are listed here
- `ip` - a tuple consisting of 4 integers
- `port`
* `url` - a list containing the configuration for generating urls, accepts
- `host` - the host without the scheme and a post (e.g `example.com`, not `https://example.com:2020`)
- `scheme` - e.g `http`, `https`
- `port`
- `path`
* `extra_cookie_attrs` - a list of `Key=Value` strings to be added as non-standard cookie attributes. Defaults to `["SameSite=Lax"]`. See the [SameSite article](https://www.owasp.org/index.php/SameSite) on OWASP for more info.
**Important note**: if you modify anything inside these lists, default `config.exs` values will be overwritten, which may result in breakage, to make sure this does not happen please copy the default value for the list from `config.exs` and modify/add only what you need
Web Push Notifications configuration. You can use the mix task `mix web_push.gen.keypair` to generate it.
* ``subject``: a mailto link for the administrative contact. It’s best if this email is not a personal email address, but rather a group email so that if a person leaves an organization, is unavailable for an extended period, or otherwise can’t respond, someone else on the list can.
* ``public_key``: VAPID public key
* ``private_key``: VAPID private key
## Pleroma.Captcha
* `enabled`: Whether the captcha should be shown on registration
* `method`: The method/service to use for captcha
* `seconds_valid`: The time in seconds for which the captcha is valid
### Pleroma.Captcha.Kocaptcha
Kocaptcha is a very simple captcha service with a single API endpoint,
the source code is here: https://github.com/koto-bank/kocaptcha. The default endpoint
`https://captcha.kotobank.ch` is hosted by the developer.
* `endpoint`: the kocaptcha endpoint to use
## :admin_token
Allows to set a token that can be used to authenticate with the admin api without using an actual user by giving it as the 'admin_token' parameter. Example:
Use LDAP for user authentication. When a user logs in to the Pleroma
instance, the name and password will be verified by trying to authenticate
(bind) to an LDAP server. If a user exists in the LDAP directory but there
is no account with the same name yet on the Pleroma instance then a new
Pleroma account will be created with the same name as the LDAP user name.
* `enabled`: enables LDAP authentication
* `host`: LDAP server hostname
* `port`: LDAP port, e.g. 389 or 636
* `ssl`: true to use SSL, usually implies the port 636
* `sslopts`: additional SSL options
* `tls`: true to start TLS, usually implies the port 389
* `tlsopts`: additional TLS options
* `base`: LDAP base, e.g. "dc=example,dc=com"
* `uid`: LDAP attribute name to authenticate the user, e.g. when "cn", the filter will be "cn=username,base"
## :auth
Authentication / authorization settings.
* `auth_template`: authentication form template. By default it's `show.html` which corresponds to `lib/pleroma/web/templates/o_auth/o_auth/show.html.eex`.
* `oauth_consumer_template`: OAuth consumer mode authentication form template. By default it's `consumer.html` which corresponds to `lib/pleroma/web/templates/o_auth/o_auth/consumer.html.eex`.
* `oauth_consumer_strategies`: the list of enabled OAuth consumer strategies; by default it's set by OAUTH_CONSUMER_STRATEGIES environment variable.
# OAuth consumer mode
OAuth consumer mode allows sign in / sign up via external OAuth providers (e.g. Twitter, Facebook, Google, Microsoft, etc.).
Implementation is based on Ueberauth; see the list of [available strategies](https://github.com/ueberauth/ueberauth/wiki/List-of-Strategies).
Note: each strategy is shipped as a separate dependency; in order to get the strategies, run `OAUTH_CONSUMER_STRATEGIES="..." mix deps.get`,
e.g. `OAUTH_CONSUMER_STRATEGIES="twitter facebook google microsoft" mix deps.get`.
The server should also be started with `OAUTH_CONSUMER_STRATEGIES="..." mix phx.server` in case you enable any strategies.
Note: each strategy requires separate setup (on external provider side and Pleroma side). Below are the guidelines on setting up most popular strategies.
Note: make sure that `"SameSite=Lax"` is set in `extra_cookie_attrs` when you have this feature enabled. OAuth consumer mode will not work with `"SameSite=Strict"`
* For Twitter, [register an app](https://developer.twitter.com/en/apps), configure callback URL to https://<your_host>/oauth/twitter/callback
* For Facebook, [register an app](https://developers.facebook.com/apps), configure callback URL to https://<your_host>/oauth/facebook/callback, enable Facebook Login service at https://developers.facebook.com/apps/<app_id>/fb-login/settings/
* For Google, [register an app](https://console.developers.google.com), configure callback URL to https://<your_host>/oauth/google/callback
* For Microsoft, [register an app](https://portal.azure.com), configure callback URL to https://<your_host>/oauth/microsoft/callback
Once the app is configured on external OAuth provider side, add app's credentials and strategy-specific settings (if any — e.g. see Microsoft below) to `config/prod.secret.exs`,
per strategy's documentation (e.g. [ueberauth_twitter](https://github.com/ueberauth/ueberauth_twitter)). Example config basing on environment variables: