Add new rest api endpoint GET users/{email} for looking up a user by
email, which is useful especially for corporate API applications that
might already have a user's email address.
Fixes#14302.
Replaced methods/functions of moment.js with date-fns library.
The motive was to replace it with a smaller frontend timezone library.
Date-fns ~ 11.51 kb
moment.js ~ 217.87 kb
Some of the format strings change because date-fns encodes them
differently from how moment did.
Fixes#16373.
https://docs.djangoproject.com/en/3.1/releases/3.1/
- django.contrib.postgres.fields.JSONField is deprecated and should be
replaced with models.JSONField
- The internals of the implementation in the postgresql backend have
changed a bit in
f48f671223
and thus we need to make an ugly tweak in test_runner.
- app_directories.Loader.get_dirs() now returns a list of PosixPath so
we need to make a small tweak in TwoFactorLoader for that (PosixPath
is not iterable)
Fixes#16010.
We eliminate some redundant checks.
We also consistently provide a `subscribers` field
in our stream data with `[]`, even if our users
can't access subscribers. We therefore bump
the API version and tweak the docs. (See further
down for a detailed justification of the change.)
Even though it is sometimes fine to have redundant code
that is defensive in nature, some upcoming changes are gonna
move subscriber-related logic out of build_stream_dict_for_sub
for certain codepaths as part of our effort to streamline
the payload for subscribers within page_params.
So we can't rely on the code that I removed here
inside of build_stream_dict_for_sub.
Anyway, it makes more sense to do these checks explicitly
in the validate function.
The code in build_stream_dict_for_sub was almost effectively
a noop, since the validation function was already preventing
us from getting subscriber info. The only difference it
made was sometimes converting `[]` to `None`, and then
subsequently omitting the subscribers field.
Neither ZT nor the webapp make any distinction between
`[]` or <missing key> for the `subscribers` data in
`page_params`.
The webapp has had this code for a long time (and now
equivalent code elsewhere in this PR):
if (!Object.prototype.hasOwnProperty.call(sub, "subscribers")) {
sub.subscribers = new LazySet([]);
}
The webapp calculates access based on booleans, anyway:
sub.can_access_subscribers =
page_params.is_admin || sub.subscribed ||
(!page_params.is_guest && !sub.invite_only);
And ZT would choke if `subscribers` were missing, except that
it never gets to the relevant code due to other checks:
def get_other_subscribers_in_stream(<snip>):
assert stream_id is not None or stream_name is not None
if stream_id:
assert self.is_user_subscribed_to_stream(stream_id)
return [sub
for sub in self.stream_dict[stream_id]['subscribers']
if sub != self.user_id]
else:
return [sub
for _, stream in self.stream_dict.items()
for sub in stream['subscribers']
if stream['name'] == stream_name
if sub != self.user_id]
You could make a semantic argument that we should prefer
<missing key> to `[]` when subscribers aren't even available, but
we have precedent from the way that `bulk_get_subscriber_user_ids`
has traditionally populated its result:
result: Dict[int, List[int]] =
{stream["id"]: [] for stream in stream_dicts}
If we changed `stream_dicts` to `target_stream_dicts` we
would faciliate a move toward `None`, but it would just cause
headaches for other server code as well as the frontends
(which, to reiterate, already prefer the empty array
for convenience).
Allowing any admins to create arbitrary users is not ideal because it
can lead to abuse issues. We should require something stronger that
requires the server operator's approval and thus we add a new
can_create_users permission.
This fixes a bug where the typeahead did not include the
zulip specific langs (such a `quote`, `spoiler` and `math`)
as these weren't passed to the typeahead's source.
Introduced in af64c52166.
Fixes#16862.
This tells users how autofix errors for linters which support it.
This is important since only way to fix prettier errors is
running lint with `--fix` which now the linter will gladly print
with the error.
Right now the list of languages in Display settings → Default language
is sorted in an unintuitive order due to the varying case conventions:
British English
Chinese (Taiwan)
Deutsch
English
Hindi
Indonesian (Indonesia)
Lietuviškai
Magyar
Malayalam
Nederlands
Português
Română
Tiếng Việt
Türkçe
català
español
français
galego
italiano
polski
suomi
svenska
česky
Русский
Українська
български
српски
فارسی
தமிழ்
日本語
简体中文
繁體中文
한국어
Fix the sort to use the locale-independent Unicode Collation
Algorithm:
British English
català
česky
Chinese (Taiwan)
Deutsch
English
español
français
galego
Hindi
Indonesian (Indonesia)
italiano
Lietuviškai
Magyar
Malayalam
Nederlands
polski
Português
Română
suomi
svenska
Tiếng Việt
Türkçe
български
Русский
српски
Українська
فارسی
தமிழ்
한국어
日本語
简体中文
繁體中文
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Upstream has slightly changed the whitespace around stashes. Take
this opportunity to clean up the extra blank lines we were outputting.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
We add a new wildcard_mention_policy setting to handle wildcard
mentions in large streams, with a wide range of policies available to
organizations.
We set the default to the safe option for preventing accidental spam:
only stream administrators being able to use wildcard mentions in
large streams.
As explained in the previous commit, yamole preprocessed allOf with an
algorithm that is not standards compliant. We replicate that
algorithm, but importantly, we only use it for our own code and not
for building the openapi_core RequestValidator.
This improves the time taken by OpenAPISpec().check_reload() from
1.69s to 0.53s, nearly all of which is inside
openapi_core.create_spec.
Closes#10484. Significantly improves #16068.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
SimpleBar 6.0.0-beta.2 through -beta.6 are built with ES6 syntax (I
assume inadvertently: https://github.com/Grsmto/simplebar/issues/523),
and its latest tag has moved back to 5.2.1 anyway.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
We need this information in the frontend to:
* Display the 'view in playground' option for locally echoed messages.
* When we add a UI settings for realm admins to configure their
playground choices, we'll need to use these canonicalized aliases
for displaying the option.
Hence, this tweaks the tool which generates pygments_data.json to contain
the data we need.
Bumping major PROVISION_VERSION since folks need to provision in both
directions.
Tests amended.
Its functionality was added to Django upstream in 2.1. Also remove
the SESSION_COOKIE_SAMESITE = 'Lax' setting since it’s the default.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
The previous code only worked by accident and hyperlink 20.0.0 breaks
it.
>>> hyperlink.parse("example.com").replace(scheme="https")
DecodedURL(url=URL.from_text('https:example.com'))
Signed-off-by: Anders Kaseorg <anders@zulip.com>
This version keeps the internal and external state of the ES6 module
in sync so its state is similar to a CommonJS module. Since we don't
need to ask rewire for the internal state of the module, the tests
will be same as they were before the TS/ES6/remove from window
migrations.
This uses our Webpack configuration to more accurately predict how our
imports will actually behave; for example, it automatically resolves
the .ts extension.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
The node package allow use to control xvfb apt package in puppeteer
tests. This help us create a fake display so we can run puppeteer in
headful (headless: false) mode, which is required to use the chrome
extension desktop capture API.
Now that all casper tests have been migrated to
puppeteer, there's no need for having casper
related things.
Removed the casperjs package and removed/replaced
casper in few places with puppeteer.
Only removed few of them which I'm confident
about. Also didn't make any changes in docs
as it would be easier to remove them while
adding puppeteer docs.
`update_message_flags` events used `operation` instead of `op`, the
latter being the standard field used in other events. So add `op`
field to `update_message_flags` and mark `operation` as deprecated,
so that it can be removed later.
This commit adds "role" field to the Subscription objects passed to
clients. This is important preparation for being able to work on the
frontend for this feature.
This adds 'user_id' to the simple success response for 'POST /users'
api endpoint, to make it convenient for API clients to get details
about users they just created. Appropriate changes have been made in
the docs and test_users.py.
Fixes#16072.
😛 should be the most general version, which is the one
with open eyes. Other apps do the same and it also means that :P, which
is converted to 😛 is rendered like the emoticon.
Fixes#15970.
Uses git release as this version 3.4.0 is not released to pypi.
This is required for removing some overriden functions of
apple auth backend class AppleAuthBackend.
With the update we also make following changes:
* Fix full name being populated as "None None".
c5c74f27dd that's included in update assigns first_name and last_name
to None when no name is provided by apple. Due to this our
code is filling return_data['full_name'] to 'None None'.
This commit fixes it by making first and last name strings empty.
* Remove decode_id_token override.
Python social auth merged the PR we sent including the changes
we made to decode_id_token function. So, now there is no
necessity for the override.
* Add _AUDIENCE setting in computed_settings.py.
`decode_id_token` is dependent on this setting.
When you post to /json/users, we no longer
require or look at the short_name parameter,
since we don't use it in any meaningful way.
An upcoming commit will eliminate it from the
database.
This particular commit has been a long time coming. For reference,
!avatar(email) was an undocumented syntax that simply rendered an
inline 50px avatar for a user in a message, essentially allowing
you to create a user pill like:
`!avatar(alice@example.com) Alice: hey!`
---
Reimplementation
If we decide to reimplement this or a similar feature in the future,
we could use something like `<avatar:userid>` syntax which is more
in line with creating links in markdown. Even then, it would not be
a good idea to add this instead of supporting inline images directly.
Since any usecases of such a syntax are in automation, we do not need
to make it userfriendly and something like the following is a better
implementation that doesn't need a custom syntax:
`![avatar for Alice](/avatar/1234?s=50) Alice: hey!`
---
History
We initially added this syntax back in 2012 and it was 'deprecated'
from the get go. Here's what the original commit had to say about
the new syntax:
> We'll use this internally for the commit bot. We might eventually
> disable it for external users.
We eventually did start using this for our github integrations in 2013
but since then, those integrations have been neglected in favor of
our GitHub webhooks which do not use this syntax.
When we copied `!gravatar` to add the `!avatar` syntax, we also noted
that we want to deprecate the `!gravatar` syntax entirely - in 2013!
Since then, we haven't advertised either of these syntaxes anywhere
in our docs, and the only two places where this syntax remains is
our game bots that could easily do without these, and the git commit
integration that we have deprecated anyway.
We do not have any evidence of someone asking about this syntax on
chat.zulip.org when developing an integration and rightfully so- only
the people who work on Zulip (and specifically, markdown) are likely
to stumble upon it and try it out.
This is also the only peice of code due to which we had to look up
emails -> userid mapping in our backend markdown. By removing this,
we entirely remove the backend markdown's dependency on user emails
to render messages.
---
Relevant commits:
- Oct 2012, Initial commit c31462c278
- Nov 2013, Update commit bot 968c393826
- Nov 2013, Add avatar syntax 761c0a0266
- Sep 2017, Avoid email use c3032a7fe8
- Apr 2019, Remove from webhook 674fcfcce1
Our previous OpenAPI schema validator that we implemented ourselves
was useful training wheels for our understanding OpenAPI properly, and
was mostly correct. But given that we've finally reached the point
where our OpenAPI file accurately describes the API, it makes sense to
switch to use an official OpenAPI validator. We lose some ability to
do exclude rules for particular elements, but those were primarily
important for us when we had a lot of them.
As part of this change, we need to add `additionalProperties: false`
for all of our dictonaries/objects where we've documented every
parameter; otherwise the OpenAPI schema checker won't know that we
expect every parameter to be documented.
There is still some miscellaneous cleanup that
has to happen for things like analytics queries
and dead code in node tests, but this should
remove the main use of pointers in the backend.
(We will also still need to drop the DB field.)
The isort author accidentally fixed the performance regression in his
latest commit. Quickly upgrade isort before he notices his mistake.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
We send user_id of the referrer instead of email in the invites dict.
Sending user_ids is more robust, as those are an immutable reference
to a user, rather than something that can change with time.
Updates to the webapp UI to display the inviters for more convenient
inspection will come in a future commit.
After some discussion, everyone seems to agree that 3.0 is the more
appropriate version number for our next major release. This updates
our documentation to reflect that we'll be using 3.0 as our next major
release.
With this implementation of the feature of the automatic theme
detection, we make the following changes in the backend, frontend and
documentation.
This replaces the previous night_mode boolean with an enum, with the
default value being to use the prefers-color-scheme feature of the
operating system to determine which theme to use.
Fixes: #14451.
Co-authored-by: @kPerikou <44238834+kPerikou@users.noreply.github.com>
We can now invite new users as realm owners. We restrict only
owners to invite new users as owners both for single invite
and multiuse invite link. Also, only owners can revoke or resend
owner invitations.
This adds a new client_capability that clients such as the mobile apps
can use to avoid unreasonable network bandwidth consumed sending
avatar URLs in organizations with 10,000s of users.
Clients don't strictly need this data, as they can always use the
/avatar/{user_id} endpoint to fetch the avatar if desired.
This will be more efficient especially for realms with
10,000+ users because the avatar URLs would increase the
payload size significantly and cost us more bandwidth.
Fixes#15287.
This commit adds backend support for setting message_retention_days
while creating streams and updating it for an existing stream. We only
allow organization owners to set/update it for a stream.
'message_retention_days' field for a stream existed previously also, but
there was no way to set it while creating streams or update it for an
exisiting streams using any endpoint.
This commit removes is_old_stream property from the stream objects
returned by the API. This property was unnecessary and is essentially
equivalent to 'stream_weekly_traffic != null'.
We compute sub.is_old_stream in stream_data.update_calculated_fields
in frontend code and it is used to check whether we have a non-null
stream_weekly_traffic or not.
Fixes#15181.
This is designed to have no user-facing change unless the client
declares bulk_message_deletion in its client_capabilities.
Clients that do so will receive a single bulk event for bulk deletions
of messages within a single conversation (topic or PM thread).
Backend implementation of #15285.
This new endpoint returns a 'user' dictionary which, as of now,
contains a single key 'is_subscribed' with a boolean value that
represents whether the user with the given 'user_id' is subscribed
to the stream with the given 'stream_id'.
Fixes#14966.
The only clients that should use the typing
indicators endpoint are our internal clients,
and they should send a JSON-formatted list
of user_ids.
We now enforce this, which removes some
complexity surrounding legacy ways of sending
users, such as emails and comma-delimited
strings of user_ids.
There may be a very tiny number of mobile
clients that still use the old emails API.
This won't have any user-facing effect on
the mobile users themselves, but if you type
a message to your friend on an old mobile
app, the friend will no longer see typing
indicators.
Also, the mobile team may see some errors
in their Sentry logs from the server rejecting
posts from the old mobile clients.
The error messages we report here are a bit
more generic, since we now just use REQ
to do validation with this code:
validator=check_list(check_int)
This also allows us to remove a test hack
related to the API documentation. (We changed
the docs to reflect the modern API in an
earlier commit, but the tests couldn't be
fixed while we still had the more complex
semantics for the "to" parameter.)
This commit removes short_name and client_id fields from the user
objects returned by get_profile_backend because neither of them
had a purpose.
* short_name hasn't been present anywhere else in the Zulip API for
several years, and isn't set through any coherent algorithm.
* client_id was a forgotten 2013-era predecessor to the queue_id field
returned by the register_event_queue process.
The combination of these changes gets us close to having `get_profile`
have the exact same format as other endpoints fetching a user object.
Option to disable breadcrumb messages were given in both message edit
form and topic edit stream popover.
User now has the option to select which stream to send the notification
of stream edit of a topic via checkboxes in the UI.
This reimplements our Zoom video call integration to use an OAuth
application. In addition to providing a cleaner setup experience,
especially on zulipchat.com where the server administrators can have
done the app registration already, it also fixes the limitation of the
previous integration that it could only have one call active at a time
when set up with typical Zoom API keys.
Fixes#11672.
Co-authored-by: Marco Burstein <marco@marco.how>
Co-authored-by: Tim Abbott <tabbott@zulipchat.com>
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Some UTF-8 characters (★ for example) are not displayed correctly, with
fonts-liberation. Puppeteer recommends[1] installing fonts-freefont-ttf in
their docs on running Puppeteer in docker.
Provisioning forward is sufficient. There's no need to remove the
new font and replace it with the old font, I think.
[1]: https://github.com/puppeteer/puppeteer/blob/master/docs/troubleshooting.md#running-puppeteer-in-docker
There's no reason to send data beyond the user `id` of the uploader,
and reason not to, as the previous model was both awkward when
`author=None` and resulted in unecessary parsing complexity for
clients.
Modified by tabbott to add the frontend changes and API documentation.
Fixes#15115.
When a user changes its avatar image, the user's avatar in popovers
wasn't being correctly updated, because of browser caching of the
avatar image. We added a version on the request to get the image in
the same format we use elsewhere, so the browser knows when to use the
cached image or to make a new request to the server.
Edited by Tim to preserve/fix sort orders in some tests, and update
zulip_feature_level.
Fixes: #14290
We remove the `owner` field from `page_params/realm_bots`
and bot-related events.
In the recent commit 155f6da8ba
we added `owner_id`, which we now use everywhere we need
bot owners for.
We also bump the `API_FEATURE_LEVEL` to 5 here. We
had already documented this in the prior commit to
add `owner_id`.
Note that we don't have to worry about mobile/ZT clients
here--we only deal with bot data in the webapp.
Popular email clients like Gmail will automatically linkify link-like
content present in an HTML email they receive, even if it doesn't have
links in it. This made it possible to include what in Gmail will be a
user-controlled link in invitation emails that Zulip sends, which a
spammer/phisher could try to take advantage of to send really bad spam
(the limitation of having the rest of the invitation email HTML there
makes it hard to do something compelling here).
We close this opportunity by structuring our emails to always show the
user's name inside an existing link, so that Gmail won't do new
linkification, and add a test to help ensure we don't remove this
structure in a future design change.
Co-authored-by: Anders Kaseorg <andersk@mit.edu>
For privacy-minded folks who don't want to leak the
information of whether they're online, this adds an
option to disable sending presence updates to other
users.
The new settings lies in the "Other notification
settings" section of the "Notification settings"
page, under a "Presence" subheading.
Closes#14798.
The major PROVISION_VERSION bump would not be needed, but it was
missing in commit 5ab62a3514 (#14834),
so I’m doing it here.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
I imagine this can be improved in various ways, but I've initialized
this with all the **Changes** entries recorded in either zulip.yaml or
the rest of the API documentation, and I expect we'll be able to
iterate on this effectively.
It'll also be useful as a record of changes that we should remember to
document the API documentation as we document more endpoints that
currently don't discuss these issues.
While working on this, I fixed various issues where feature levels
could be mentioned or endpoints didn't properly document changes.
Includes this change:
* openapi/python_examples: Update get_single_user.
This updates get_single_user to pass keyword arguments to
get_user_by_id instead of passing a dictionary.
Which is required for CI to pass, as we indeed fixed the API of that
function (which had only been present with the wrong API for one release).
We have two different digest schemes to make
sure we keep the database up to date. There
is the migration digest, which is NOT in the
scope of this commit, and which already
used the mechanism we use for other tools.
Here we are talking about the digest for
important files like `populate_db.py`.
Now our scheme is more consistent with how we
check file changes for other tools (as
well as the aformentioned migration files).
And we only write one hash file, instead of
seven.
And we only write the file when things have
actually changed.
And we are explicit about side effects.
Finally, we include a couple new bot settings
in the digest:
INTERNAL_BOTS
DISABLED_REALM_INTERNAL_BOTS
NOTE: This will require a one-time transition,
where we rebuild both databases (dev/test).
It takes a little over two minutes for me,
so it's not super painful.
I bump the provision version here, even
though you don't technically need it (since
the relevant tools are actually using the
digest files to determine if they need to
rebuild the database). I figure it's just
good to explicitly make this commit trigger
a provision, and the user will then see
the one-time migration of the hash files
with a little bit less of a surprise.
And I do a major bump, not a minor bump,
because when we go in the reverse direction,
the old code will have to rebuild the
database due to the legacy hash files not
being around, so, again, I just prefer it
to be explicit.
Upgrade libthumbor in main zulip venv. This version drops support
for python 2 and runs on py>=3.6.
As such, it is our first commit taking advantage of our having dropped support
for Debian Stretch and Ubuntu Xenial, our previous Python 3.5-based platforms.
The purpose is to provide a way for (non-webapp) clients,
like the mobile and terminal apps, to tell whether the
server it's talking to is new enough to support a given
API feature -- in particular a way that
* is finer-grained than release numbers, so that for
features developed after e.g. 2.1.0 we can use them
immediately on servers deployed from master (like
chat.zulip.org and zulipchat.com) without waiting the
months until a 2.2 release;
* is reliable, unlike e.g. looking at the number of
commits since a release;
* doesn't lead to a growing bag of named feature flags
which the server has to go on sending forever.
Tweaked by tabbott to extend the documentation.
Closes#14618.
This guarantees that we don’t accidentally upgrade one without the
other, which could happen for example due to different third-party
version constraints between the two.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
When creating a webhook integration or creating a new one, it is a pain to
create or update the screenshots in the documentation. This commit adds a
tool that can trigger a sample notification for the webhook using a fixture,
that is likely already written for the tests.
Currently, the developer needs to take a screenshot manually, but this could
be automated using puppeteer or something like that.
Also, the tool does not support webhooks with basic auth, and only supports
webhooks that use json fixtures. These can be fixed in subsequent commits.
Add sgrep (sgrep.dev) to tooling and include simple rule as
proof of concept. Included rule detects use of old django render
function.
Also added a rule that looks for if-else statements where both
code paths are identical.
This makes it relatively easy for a system administrator to
temporarily override these values after a desktop app security
release that they want to ensure all of their users take.
We're not putting this in settings, since we don't want to encourage
accidental long-term overrides of these important-to-security values.
python 3.8 support for python-api-bindings was fixed in commit
63bc9b8a4f
so upgraded python-api-bindings to tag 0.6.3 which included this fix.
Bumped PROVISION_VERSION.
importlib-metadata and importlib-resources are dependent packages for jsonschema
and cfn-lint respectively. They are built-in modules in later versions
of python (3.8, 3.7). When update-locked-requirements is run within python3.7 or
3.8 they will generate difference in locked files so we build these modules separately
to avoid such conflicts.
We now restrict emails on the zulip realm, and now
`email` and `delivery_email` will be different for
users.
This change should make it more likely to catch
errors where we leak delivery emails or use the
wrong field for lookups.
We had a bunch of ugly hacks to monkey patch things due to upstream
being temporarily unmaintained and not merging PRs. Now the project is
active again and the fixes have been merged and included in the latest
version - so we clean up all that code.
This gives them cache-compatible URLs, and also avoids some extra
copies of the sprite sheet images.
Comments on the Octopus emoji added by tabbott.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
This commit changes the calculation of the
background-size parameter that we use to
render emojis from sprite sheets.
In particular, it now makes the parameter
match the sizes of our latest sprite
sheets from Twitter/Google.
This should fix the geometry aspect of #13959,
but we also need to fix some issues with the
cache being sticky.
There is also some minor cleanup:
- Remove obsolete -moz/-webkit CSS.
- Remove needless precision in percentages.
- Fix the transposed nrows/ncols names.
- Add extensive commenting.
Finally, we add a minor bump to the provision
number. This commit should be merged in the
same series as the other fix for this issue,
which will probably have a major bump, and we'll
need to rebase this appropriately.
Django 2.2.x is the next LTS release after Django 1.11.x; I expect
we'll be on it for a while, as Django 3.x won't have an LTS release
series out for a while.
Because of upstream API changes in Django, this commit includes
several changes beyond requirements and:
* urls: django.urls.resolvers.RegexURLPattern has been replaced by
django.urls.resolvers.URLPattern; affects OpenAPI code and related
features which re-parse Django's internals.
https://code.djangoproject.com/ticket/28593
* test_runner: Change number to suffix. Django changed the name in this
ticket: https://code.djangoproject.com/ticket/28578
* Delete now-unnecessary SameSite cookie code (it's now the default).
* forms: urlsafe_base64_encode returns string in Django 2.2.
https://docs.djangoproject.com/en/2.2/ref/utils/#django.utils.http.urlsafe_base64_encode
* upload: Django's File.size property replaces _get_size().
https://docs.djangoproject.com/en/2.2/_modules/django/core/files/base/
* process_queue: Migrate to new autoreload API.
* test_messages: Add an extra query caused by .refresh_from_db() losing
the .select_related() on the Realm object.
* session: Sync SessionHostDomainMiddleware with Django 2.2.
There's a lot more we can do to take advantage of the new release;
this is tracked in #11341.
Many changes by Tim Abbott, Umair Waheed, and Mateusz Mandera squashed
are squashed into this commit.
Fixes#10835.
webpack optimizes JSON modules using JSON.parse("{…}"), which is
faster than the normal JavaScript parser.
Update the backend to use emoji_codes.json too instead of the three
separate JSON files.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>