* Add bell button
Fix#4890
* Remove duplicate type from post-deployment migration
* Fix legacy class type mappings
* Improve query performance with better index
* Fix validation
* Remove redundant index from notifications
* Add paragraph about browser add-ons when encountering some errors
When a crash is caused by a NotFoundError exception, add a paragraph
to the error page mentioning browser add-ons.
Indeed, crashes with NotFoundError are often caused by browser extensions
messing with the DOM in ways React.JS can't recover from (e.g. issues #13325
and #14731).
* Reword error messages
* Do not serve account actors at all in limited federation mode
When an account is fetched without a signature from an allowed instance,
return an error.
This isn't really an improvement in security, as the only information that was
previously returned was required protocol-level info, and the only personal bit
was the existence of the account. The existence of the account can still be
checked by issuing a webfinger query, as those are accepted without signatures.
However, this change makes it so that unallowed instances won't create account
records on their end when they find a reference to an unknown account.
The previous behavior of rendering a limited list of fields, instead of not
rendering the actor at all, was in order to prevent situations in which two
instances in Authorized Fetch mode or Limited Federation mode would fail to
reach each other because resolving an account would require a signed query…
from an account which can only be fetched with a signed query itself. However,
this should now be fine as fetching accounts is done by signing on behalf of
the special instance actor, which does not require any kind of valid signature
to be fetched.
* Fix tests
* Check for and record reblog info atomically
Instead of using ZREVRANK to determine whether a reblog is a new reblog or not,
use ZADD's NX option to perform the check/addition option atomically.
* Replace ZREVRANK call with ZSCORE key which is more efficient
* Make tests a bit stricter
* Fix off-by-one
* Add database support for list show-reply preferences
* Add backend support to read and update list-specific show_replies settings
* Add basic UI to set list replies setting
* Add specs for list replies policy
* Switch "cycling" reply policy link to a set of radio inputs
* Capitalize replies_policy strings
* Change radio button design to be consistent with that of the directory explorer
* [WiP] Update Tesseract.js
- Update Tesseract.js to 2.2.1
- Use versioned file names
- differentiate two progression states: preparing OCR and detecting picture
* Get rid of copy-webpack-plugin
* Add back "Home" link to "Getting started" when Home column isn't mounted
* Fix keys in getting_started
It should not matter much in practice as the list of items will only
change extremely rarely, but having a `key` that corresponds to the actual
item makes much more sense than having it be the index of the item within
the list.
* Make Array-creation behavior of Paginable more predictable
Paginable.paginate_by_id usually returns ActiveRecord::Relation, but it
returns an Array if min_id option is present. The behavior caused problems
fixed with the following commits:
- 552e886b64
- b63ede5005
- 64ef37b89d
To prevent from recurring similar problems, this commit introduces two
changes:
- The scope now always returns an Array whether min_id option is present
or not.
- The scope is renamed to to_a_paginated_by_id to clarify it returns an
Array.
* Transform Paginable.to_a_paginated_by_id from a scope to a class method
https://api.rubyonrails.org/classes/ActiveRecord/Scoping/Named/ClassMethods.html#method-i-scope
> The method is intended to return an ActiveRecord::Relation object, which
> is composable with other scopes.
Paginable.to_a_paginated_by_id returns an Array and is not appropriate
as a scope.
* Replace incorrect use of distinct with group
Some uses of ActiveRecord::QueryMethods#distinct pass field names but they
are incorrect for the current version of Rails.
ActiveRecord::QueryMethods#group provides the expected behavior and
benefits performance. See commit 6da24aad4cafdef8d8a2c92bac2002a5fc2fe9c8.
* Introduce ApplicationController#cache_collection_paginated_by_id
ApplicationController#cache_collection_paginated_by_id fuses
ApplicationController#cache_collection and Paginable.paginate_by_id.
An advantage of this method is that it prevents from modifying scope which
Paginable.paginate_by_id may provide.
ApplicationController#cache_collection always return an array and there
is no possibility of the scope modification. It is also clear for a
programmer, considering the implication of "cache".
This method can also emit more efficient queries by using
Cacheable.cache_ids before calling Paginable.paginate_by_id.
Some uses of ActiveRecord::QueryMethods#distinct pass field names but they
are incorrect for the current version of Rails.
ActiveRecord::QueryMethods#group provides the expected behavior and
benefits performance. See commit 6da24aad4cafdef8d8a2c92bac2002a5fc2fe9c8.
The old implementation had two queries:
1. The query constructed in Api::V1::FavouritesController#results
2. The query constructed in #cached_favourites, which is merged with 1.
Both of them are issued againt PostgreSQL. The combination of the two
queries caused the following problems:
- The small window between the two queries involves race conditions.
- Minor performance inefficiency.
Moreover, the construction of query 2, which involves merging with query
1 has a bug. Query 1 is finalized with paginate_by_id, but paginate_by_id
returns an array when min_id parameter is specified. The behavior prevents
from merging the query, and in the real world, ActiveRecord simply ignores
the merge (!), which results in querying the entire scan of statuses and
favourites table.
This change fixes these issues by simply letting query 1 get all the works
done.
DISTINCT clause removes duplicated records according to all the selected
attributes. In reality, it can remove duplicated records only looking at
statuses.id, but the clause confuses the query planner and yields
insufficient performance.
The behavior is also problematic if the scope produced by HashQueryService
is used to query columns without id (using pluck method, for example). The
scope is expected to contain unique statuses, but the uniquness will be
evaluated with some arbitrary columns other than id.
GROUP BY clause resolves those problem by explicitly specifying the
column to take into account for the record distinction.
A workaround for the problem of DISTINCT clause in
Api::V1::Timelines::TagController is no longer necessary and removed.
* Add support for latest HTTP Signatures spec draft
https://www.ietf.org/id/draft-ietf-httpbis-message-signatures-00.html
- add support for the “hs2019” signature algorithm (assumed to be equivalent
to RSA-SHA256, since we do not have a mechanism to specify the algorithm
within the key metadata yet)
- add support for (created) and (expires) pseudo-headers and related
signature parameters, when using the hs2019 signature algorithm
- adjust default “headers” parameter while being backwards-compatible with
previous implementation
- change the acceptable time window logic from 12 hours surrounding the “date”
header to accepting signatures created up to 1 hour in the future and
expiring up to 1 hour in the past (but only allowing expiration dates up to
12 hours after the creation date)
This doesn't conform with the current draft, as it doesn't permit accounting
for clock skew.
This, however, should be addressed in a next version of the draft:
https://github.com/httpwg/http-extensions/pull/1235
* Add additional signature requirements
* Rewrite signature params parsing using Parslet
* Make apparent which signature algorithm Mastodon on verification failure
Mastodon uses RSASSA-PKCS1-v1_5, which is not recommended for new applications,
and new implementers may thus unknowingly use RSASSA-PSS.
* Add workaround for PeerTube's invalid signature header
The previous parser allowed incorrect Signature headers, such as
those produced by old versions of the `http-signature` node.js package,
and seemingly used by PeerTube.
This commit adds a workaround for that.
* Fix `signature_key_id` raising an exception
Previously, parsing failures would result in `signature_key_id` being nil,
but the parser changes made that result in an exception.
This commit changes the `signature_key_id` method to return `nil` in case
of parsing failures.
* Move extra HTTP signature helper methods to private methods
* Relax (request-target) requirement to (request-target) || digest
This lets requests from Plume work without lowering security significantly.
Follow-up to #14359
In the case of limited toots, the receiver may not be explicitly part of the
audience. If a specific user's inbox URI was specified, it makes sense to
dereference the toot from the corresponding user, instead of trying to find
someone in the explicit audience.
* feat: add possibility of adding WebAuthn security keys to use as 2FA
This adds a basic UI for enabling WebAuthn 2FA. We did a little refactor
to the Settings page for editing the 2FA methods – now it will list the
methods that are available to the user (TOTP and WebAuthn) and from
there they'll be able to add or remove any of them.
Also, it's worth mentioning that for enabling WebAuthn it's required to
have TOTP enabled, so the first time that you go to the 2FA Settings
page, you'll be asked to set it up.
This work was inspired by the one donde by Github in their platform, and
despite it could be approached in different ways, we decided to go with
this one given that we feel that this gives a great UX.
Co-authored-by: Facundo Padula <facundo.padula@cedarcode.com>
* feat: add request for WebAuthn as second factor at login if enabled
This commits adds the feature for using WebAuthn as a second factor for
login when enabled.
If users have WebAuthn enabled, now a page requesting for the use of a
WebAuthn credential for log in will appear, although a link redirecting
to the old page for logging in using a two-factor code will also be
present.
Co-authored-by: Facundo Padula <facundo.padula@cedarcode.com>
* feat: add possibility of deleting WebAuthn Credentials
Co-authored-by: Facundo Padula <facundo.padula@cedarcode.com>
* feat: disable WebAuthn when an Admin disables 2FA for a user
Co-authored-by: Facundo Padula <facundo.padula@cedarcode.com>
* feat: remove ability to disable TOTP leaving only WebAuthn as 2FA
Following examples form other platforms like Github, we decided to make
Webauthn 2FA secondary to 2FA with TOTP, so that we removed the
possibility of removing TOTP authentication only, leaving users with
just WEbAuthn as 2FA. Instead, users will have to click on 'Disable 2FA'
in order to remove second factor auth.
The reason for WebAuthn being secondary to TOPT is that in that way,
users will still be able to log in using their code from their phone's
application if they don't have their security keys with them – or maybe
even lost them.
* We had to change a little the flow for setting up TOTP, given that now
it's possible to setting up again if you already had TOTP, in order to
let users modify their authenticator app – given that now it's not
possible for them to disable TOTP and set it up again with another
authenticator app.
So, basically, now instead of storing the new `otp_secret` in the
user, we store it in the session until the process of set up is
finished.
This was because, as it was before, when users clicked on 'Edit' in
the new two-factor methods lists page, but then went back without
finishing the flow, their `otp_secret` had been changed therefore
invalidating their previous authenticator app, making them unable to
log in again using TOTP.
Co-authored-by: Facundo Padula <facundo.padula@cedarcode.com>
* refactor: fix eslint errors
The PR build was failing given that linting returning some errors.
This commit attempts to fix them.
* refactor: normalize i18n translations
The build was failing given that i18n translations files were not
normalized.
This commits fixes that.
* refactor: avoid having the webauthn gem locked to a specific version
* refactor: use symbols for routes without '/'
* refactor: avoid sending webauthn disabled email when 2FA is disabled
When an admins disable 2FA for users, we were sending two mails
to them, one notifying that 2FA was disabled and the other to notify
that WebAuthn was disabled.
As the second one is redundant since the first email includes it, we can
remove it and send just one email to users.
* refactor: avoid creating new env variable for webauthn_origin config
* refactor: improve flash error messages for webauthn pages
Co-authored-by: Facundo Padula <facundo.padula@cedarcode.com>
Before this change:
- unsubscribe() was not called for a disconnection
- It seems that WebSocketClient calls connected() and reconnected().
subscriptionCounters were incremented twice for a single reconnection,
first from connected() and second from reconnected()
This might be a an additional change to
https://github.com/tootsuite/mastodon/pull/14579
to recover subscriptions after a reconnect.
* Increase DNS timeout from 1 second to 5 seconds for MX check
1 seconds is rather short when using a recursive DNS resolver which
hasn't got a cached result already available. Use 5 seconds instead,
which is the timeout value we use for outgoing HTTP queries.
* Add more precise error messages for invalid e-mail addresses
* Fix client-side username validation at registration
It used the Account::USERNAME_RE regexp which is for *remote* users,
local user validation is stricter. Also take into account max username length.
* Add client-side form validation for password change
* Add client-side form validation to dedicated registration form
Previous changes only applied to the /about page, not the dedicated form on
/auth
* Add HTML-level validation of username in sign-up form
* Make required fields with incorrect values more visible
* Enable HTML form validation for the registration form
* Mark agreement checkbox as required client-side
* Add minimum length to password
* Add client-side password confirmation validation
* Fix not handling Undo on some activity types when they aren't inlined
When receiving an Undo for a non-inlined activity, try looking it up in
database using the URI. The queries are ad-hoc because we don't have a global
index of object URIs, and not all activity types are stored in database with
an index on their URI.
Announces are just statuses, and have an index on URIs, so this check can
be done efficiently.
Accepts cannot be handled at all because we don't record their URI at any
point.
Follows don't have an index on URI, but they have an index on the issuing
account, which should make such queries largely manageable.
Likes don't have an index on URI, they have an index on the issuing account,
but the number of favs per account may be very high, so I decided not to
handle that.
Blocks don't have an index on URI, but they have an index on the issuing
account, which should make such queries largely manageable.
In all cases, if an Undo could not be handled properly, we call `delete_later!`
because that does not require us to know more than the URI of the undone
property.
* Add tests
* Make newer blocks overwrite older ones
Allows re-synchronizing block info by re-blocking and un-blocking again
when the original Undo Block has been lost.
* Add tests for some cachable responses
This only covers responses that we should have managed to make cachable
so far. It's not the case of all responses that should be cachable in
the end.
* Fix RSS feeds not being cachable
* Add toot send by current user at local state after send a new toot
Related to #14021
* Decrement toot counter at profile when remove a toot
Related to #14021
* Remove semicolon at end of line
That should've worked just fine, but unfortunately, Crowdin wasn't able
to pick up on our non-existent "one" category, thus appending empty
translation block to people's translations. Empty block WILL BE used by
any ICU FormatMessage library, thus resulting in an empty translation
for "one" category, and that requires immediate fix.
This commit duplicates contents of the "other" plural category.
Fixes#14337
The new audio player sets the background and foreground colors automatically
based on the thumbnail of the audio file, but the mastodon-light theme
overrides the controls' colors with a hardcoded color, which sometimes make
them unreadable.
* Fix the local group's followers collection
* Fix to accept followed relayed_through_account
* Add local delivery to the group's followers
* Fix code style
* Revert "Add local delivery to the group's followers"
This reverts commit 3237effc199772e4c4d30f19082cbc5633f56196.
Since #14145, the `set_type_and_extension` has been moved from
`before_post_process` to `before_file_post_process`, but while the former
runs before all validations performed by Paperclip, the latter is dependent
on the order validations and hooks are defined.
In our case, this meant video files could be checked against the generic 10MB
limit, causing validation failures, which, internally, make Paperclip skip
post-processing, and thus, transcoding of the video file.
The actual validation would then happen after the type is correctly set, so
the large file would pass validation, but without being transcoded first.
This commit moves the hook definition so that it is run before checking for
the file size.
* Fix audio and video items in account gallery in web UI
- Fix audio items not using thumbnails
- Fix video items not using custom thumbnails
- Fix video items autoplaying like GIFs
* Change audio and video items in account gallery to autoplay when opened in web UI
* Fix code style issue
* Fix audio player ticks position
* Split visualizer code into own file to comply with license
* Change top-left corner of visualizer always showing peaks, clean up code
There was a missed empty hash check. As well as rendering is now wrapped
in try/catch block, so app won't crash if any Blurhash component fails
to render its contents as it's not that critical.
This commit replaces all unnecessarily repeated code for decoding and
embedding blurhash canvases with separate component - <Blurhash>.
Under the hood Blurhash component will use effect dependent on its
props. This gives a few benefits: it will only be re-rendered whenever
the hash or width/height/dummy props update, and will not render if
canvas won't get to the final DOM, because then effect won't fire,
which prevents weird bugs like #14257.
While OAuth tokens were immediately revoked, accessing the home
controller immediately generated new OAuth tokens and "revived"
the session due to a combination of using remember_me tokens and
overwriting the `authenticate_user!` method
This commit introduces new utility component - ShortNumber. It should
work almost the same way as original shortNumberFormat function,
though it also localizes units and accepts one more prop - renderer.
Renderer is a function that takes rendered short formatted number
and also ready-to-pluralize number to format display result accordingly.
Ready-to-pluralize number allows to correctly select plural for
compactly notated numbers, respecting thousands and other units.
Issue #12451 accurately describes the issue with using raw numbers
when replacing counter with short version. In short, it doesn't work
with languages such as Russian, that require different plurals,
according to the unit number was compacted to.
All previous usages of shortNumberFormat were replaced with new
function, and as it became unused, it was removed to avoid misleading.
* Change move handler to carry blocks and mutes over
When user A blocks user B and B moves to a new account C, make A block C
accordingly.
Note that it only works if A's instance is aware of the Move, that is,
if B is on A's instance or has followers there.
* Also notify instances with known people blocking you when moving
* Add automatic account notes when blocking/muting an account that had no note
* Add UserNote model
* Add UI for user notes
* Put comment in relationships entity
* Add API to create user notes
* Copy user notes to new account when receiving a Move activity
* Address some of the review remarks
* Replace modal by inline edition
* Please CodeClimate
* Button design changes
* Change design again
* Cancel note edition when pressing Escape
* Fixes
* Tweak design again
* Move “Add note” item, and allow users to add notes to themselves
* Rename UserNote into AccountNote, rename “comment” Relationship attribute to “note”
- Change audio files to not be stripped of metadata
- Automatically extract cover art from audio if it exists
- Add `thumbnail` parameter to `POST /api/v1/media`, `POST /api/v2/media` and `PUT /api/v1/media/:id`
- Add `icon` to represent it in attachments in ActivityPub
- Fix `preview_url` containing URL of missing missing image when there is no thumbnail instead of null
- Fix duration of audio not being displayed on public pages until the file is loaded
* Fix header button changing header size in settings pages
* Make form buttons look more like a part of the form in settings pages
- Put buttons closer, using same distance as between inputs
- Make buton font size a bit smaller to blend a bit more
- Add the class button to button tags for consisent styling
Thai does not separate words by spaces, so I figured out it should be
in 'reliable characters regexp' that denotes languages that do the same.
Related #13891.
* Fix design issues with sensitive preview cards
* Center “sensitive” label on preview image for interactive cards
* Add “button” role to sensitive preview card text
- Fix audio attachments not being represented in OpenGraph tags
- Fix audio being represented as "1 image" in OpenGraph descriptions
- Fix video metadata being overwritten by paperclip-av-transcoder
- Fix embedded player not using Mastodon's UI
- Fix audio/video progress bars not moving smoothly
- Fix audio/video buffered bars not displaying correctly
* Fix audio download button not starting download in web UI
* Fix volume controls on audio and video players in web UI
* Remove download button from video player in web UI
* Fixed emoji detection problem to append border
* Add tests
* Add missing semicolon
* Fixed wrong result when includes different variation selector
* Add missing semicolon
* Remove grapheme-splitter and Change emoji list to array from string
* Update comment
* Remove spaces
Co-authored-by: ThibG <thib@sitedethib.com>
* Split media cleanup from reject-media domain blocks to its own service
* Slightly improve ClearDomainMediaService error handling
* Lower DomainClearMediaWorker to lowest-priority queue
* Do not catch ActiveRecord::RecordNotFound in domain block workers
* Fix DomainBlockWorker spec labels
* Add some specs
* Change domain blocks to immediately mark accounts as suspended
Rather than doing so sequentially, account after account, while cleaning
their data. This doesn't change much about the time the block takes to
complete, but it immediately prevents interaction with the blocked domain,
while up to now, it would only be guaranteed when the process ends.
* Refactor list of emoji requiring added outlines so that it can be theme-specific
* Split inaccessible emoji to emoji requiring an outline and ones that can be inverted
* Drop the “silouhettes” from black emoji as they seem to have changed color
* Add inaccessible emojis list for the light theme
* Use bordered emoji variant instead of unreliable CSS
* FIX: filters ignore media descriptions
* remove parentheses to make codeclimate happy
* combine the text and run the regular expression only once.
https://github.com/tootsuite/mastodon/pull/13837#discussion_r431752581
* Fix use of “filter” instead of “compact”, fix coding style issues
Co-authored-by: Thibaut Girka <thib@sitedethib.com>
* Display appropriate error when performing unpermitted operation on custom emoji
Fixes#13897
* Remove links to custom emoji actions not performable by moderators
* Fix admin page crashing when trying to block an invalid domain name
Fixes#13880
* Fix trailing and leading spaces not being properly stripped for domain blocks
Unfortunately, Firefox does not support the `keepalive` parameter
I used in the previous PR. However it supports the `navigator.sendBeacon`
API that allows that kind of things, but does not allow setting headers.
Therefore, this PR replaces it with a `sendBeacon` call that passes the
bearer token in the POST data.
Doorkeeper will then handle the auth token out of the box, as long as
it is passed as form data. Passing the query as JSON does not work.
* Periodically save timeline markers
This saves timeline markers immediately upon message arrival, but not more
than once every 5 minutes.
This does not change how the markers are saved on closing the window,
except that it avoids submitting them if there is no need for it.
* Use the Fetch API when possible instead of XHR on window unload
* Fix some account avatars on public pages having incorrect size
* Remove outdated and overridden width and height attributes
* Remove more hardcoded width/height attributes
When attempting to access the log-in page while already logged in,
Devise's `require_no_authentication` kicks in and sets a flash
message “You are already signed in.”
In almost all cases, this also causes a redirect to /web, which
does not display or clear flash messages, thus leaving the message
to a potentially much later date, like for instance, accessing
/preferences several minutes after being redirected to /web.
* Improve RSS entries for statuses
- Render polls in both accounts and tags serializers
- Refactor RSS serializers
- Change title preview to include ellipsis when truncated
- Change title preview to show CW instead of toot text
- Add tests
* Remove title from OEmbed serialization
Twitter doesn't serialize title either, and tihs allows us to move the
title formatting code to the RSS serializers.
Change `account_link_to` to use an image tag rather than some
inline CSS. Dropped the `size` parameter in the process, but it wasn't
used for anything except the default value of 36px.
Dropped CSS rules that were always overriden, and defaulted to 36px width
and height instead.
When deduplicating account usernames for OAuthable users, the routine did check if any account was known with that username, including remote accounts. This caused some unnecessary deduplication, and usernames ending with unexpected trailing _1.
This fixes#13580
* Move .back-button inline styles to CSS file
All occurrences of the back-button CSS class used the same inline
CSS rules, so moved them over to the CSS file
* Fix “Add new domain block” button using inline CSS
* Replace common pattern of inline-styled button boxes by a CSS class
In particular, switching from `float: left/right` to a flexbox with
`justify-content: space-between`. This implied changing the order of
a few HTML tags and adding an empty `div` in one case.
Also removed a `margin-bottom` rule that wasn't needed due to the
margins of surrounding elements.
* Move account admin view inline CSS to CSS file
Fixes#13573
For some reason (I suspect this may be related to focusing the item before it
got drown by the browser), Firefox scrolls to top when bringing up dropdown
menus with pre-selected items.
This commit uses the “preventScroll” option as, due to the placement behavior,
the menu should be visible anyway and not trigger scrolling.
* Move some inline styles to CSS files
* Move default_account_display_name span to fix useless tags with duplicate id
* Change handling of public pages spoiler text from inline CSS to dataset attribute
* Use the `dir` HTML attribute instead of inline CSS
* Move status action bar inline CSS to CSS file
* Hide logo resources from CSS file, not inline CSS
Fixes#11601
* Move translation prompt styling from inline CSS to CSS file
* Move “invited by” styling on registration form from inline to CSS file
* Use the progress tag to display poll results in JS fallback
* Fix poll results JS-less fallback when the user has voted for an option
* Change account public page “moved” notice to use img tags instead of inline CSS
* Move OTP hint inline CSS to SCSS file
* Hide JS-less fallback vote progressbars from accessibility tools
Co-authored-by: Eugen Rochko <eugen@zeonfederated.com>
Attempting to upload image files that the browser is unable to load results
in “Oops! An unexpected error occurred.”
This commit changes the error handling so that an unprocessable image results
in the file being sent anyway, which might cover a few corner cases, and
provide a slightly better error message.
Fixes#13536
- Expanding a paused video doesn't autoplay anymore
- Default volume level for the expanded video inherited from the original video
Position/playing state/volume are carried over from the original video player
to the modal, but they're not reported back to the modal as it would require
deeper changes.
This is achieved by sending a DELETE request to
/settings/profile/pictures/{avatar,header} via a link that is part of
the upload form's hint of the respective picture.
Some browsers (at least recent Chrome versions) automatically take
image metadata into account when drawing images into a canvas.
There seem to be no way to prevent that behavior, and the only
way to detect it seems to compare with a known image.
See: https://github.com/w3c/csswg-drafts/issues/4666
Solution adapted from: 1e4df70782
Follow-up to #13452, fixing broken `uri.nil?` test.
Also remove the separate check for `uri` presence, as that would result
in a “Please review 2 errors below” while only one would be listed.
* Fix “Email changed” notification sometimes having wrong e-mail
Fixes#6778
The root of the issue is that `send_devise_notification` was called before
the changes were properly commited to the database, causing the mailer to
pick previous values if running too early.
Devise's documentation provides guidance on how to handle that[1][2], however,
I have found it to not be working, as the following happens, in that order:
- `send_devise_notification` is called for the `email_changed` notification.
In that case, `changed?` is false and `saved_changes?` is true, so
if we use the former, we have the same issue.
- the `after_commit` hook is called
- `send_devise_notification` is called for the `confirmation_instructions`
notification.
In that case, `changed?` is still false, and `saved_changes?` still true,
so if we use the latter, that second notification email is simply not
going to be sent (as we would be queuing the notification *after*
executing the after_commit hook).
This is because it may be called from either an `after_update` or
`after_commit` hook, the difference not being a call to `save` but the
transaction actually being committed to the database. This may arguably
be a bug in Devise, or Devise's notification.
The proposed workaround is inspired by Devise's documentation but checks
whether a transaction is open to make the call whether to immediately
send the notification or defer it to the `after_commit` hook.
[1]: https://www.rubydoc.info/github/plataformatec/devise/Devise%2FModels%2FAuthenticatable:send_devise_notification
[2]: 406915cb78/lib/devise/models/authenticatable.rb (L133-L194)
* Fix cases when sending notifications without changing the model
* Defer sending if and only if in transaction including current record
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