python-twitter was consuming a significant amount of import time.
However, this commit seems to not save any time at all, probably
because its recursive dependencies are imported elsewhere in Zulip.
Extracting this helper library will help us avoid an import loop
between notifications.py and message.py (with bugdown in between).
But in addition to that, it's a more natural model, since some of the
uses for these functions weren't part of the notifications code
anyway.
This has the benefit that we now get the usual data about the
user/request/etc. in error emails related to bugdown exceptions;
previously we were just getting the traceback in the emails (since our
`mail_admins` template was very simple) and no other debugging
details.
Comments tweaked by tabbott to help make clear exactly what's going on
here, since it's a little subtle and a little hacky.
Fixes#8843.
Various pieces of our thumbor-based thumbnailing system were already
merged; this adds the remaining pieces required for it to work:
* a THUMBOR_URL Django setting that controls whether thumbor is
enabled on the Zulip server (and if so, where thumbor is hosted).
* Replaces the overly complicated prototype cryptography logic
* Adds a /thumbnail endpoint (supported both on web and mobile) for
accessing thumbnails in messages, designed to support hosting both
external URLs as well as uploaded files (and applying Zulip's
security model for access to thumbnails of uploaded files).
* Modifies bugdown to, when THUMBOR_URL is set, render images with the
`src` attribute pointing /thumbnail (to provide a small thumbnail
for the image), along with adding a "data-original" attribute that
can be used to access the "original/full" size version of the image.
There are a few things that don't work quite yet:
* The S3 backend support is incomplete and doesn't work yet.
* The error pages for unauthorized access are ugly.
* We might want to rename data-original and /thumbnail?size=original
to use some other name, like "full", that better reflects the fact
that we're potentially not serving the original image URL.
This has two advantages;
* We can split bugdown/__init__.py into several modules, and each
module can access these arguments by importing these
* We get rid of the super-ugly `global db_data` construct, replacing
it with a only slightly ugly monkey-ish patching of the
`zerver.lib.bugdown.arguments` module, which is at least
considerably more clear on reading as to what it's purpose is.
The only changes visible at the AST level, checked using
https://github.com/asottile/astpretty, are
zerver/lib/test_fixtures.py:
'\x1b\\[(1|0)m' ↦ '\\x1b\\[(1|0)m'
'\\[[X| ]\\] (\\d+_.+)\n' ↦ '\\[[X| ]\\] (\\d+_.+)\\n'
which is fine because re treats '\\x1b' and '\\n' the same way as
'\x1b' and '\n'.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
This bug is caused by the conversion of newlines to `<br>` statements,
since `>` is not allowed as a character around an emoticon during
translation.
Also, add a new test case for preventing this bug from occurring in the
future.
Fix#9763.
This commit increases the rendered_content limit from 2x to 10x of the
original message length.
Earlier, we had placed a limit of MAX_MESSAGE_LENGTH * 2 for the
rendered content (explained in commit
77addc5456). That limit was based on
the assumption that in most cases, the rendered content wouldn't cause
a large increase in message length. However, quite prominently in
syntax highlighted codeblocks, that wasn't true and this caused the
limit condition to be hit for long messages composed primarily of code
blocks.
Example: The following message would render close to 10x it's original size.
```py
if:
def:
print("x", var)
x = y
```
Because the syntax highlighted logic is extremely compressible, having
rendered_content reach up to 100KB doesn't create a network
performance problem.
Also switches the default behaviour of the code to not translate the
emoticons. Earlier, the code was testing-aware, and used to translate
when there was no user profile data available(assuming that as a testing
environment).
In 18e43895ff we replaced
stream subscribe buttons with stream links. The new feature
has been well tested and well received for over a year now,
so it's safe to remove the older feature at this point.
Older sites will have super old messages that still have the
rendered markup; this commit does not attempt to address those
situations. Most likely, clicking on an old button in the old
message will either do nothing or look like a message reply.
This commit refactors the bugdown to perform a lookup only on active
realm emojis. This was needed because once we migrate realm emojis
to be addressed by `id` rather than name, it will be costly to
perform a lookup on all the realm emojis.
This field has been unused by clients for some time, and isn't great
for our public archive feature plans (where we'll not want to be
including email addresses in messages).
Add `translate_emoticons` to `prop_types` and `expected_keys`.
Furthermore, create a emoji-translating Markdown inline pattern.
Also use a JavaScript version of `translate_emoticons` and then use
this function during Markdown previews and as a preprocessor. This
is only needed for previews, because usually emoticon translation
happens on the backend after sending.
Add tests for emoticon translation, a settings UI, and a /help/ page
as well.
Tweaked by tabbott to fix various test failurse as well as how this
handles whitespace, requiring emoticons to not have adjacent
characters.
Fixes#1768.
This commit prefixes stream names in urls with stream ids,
so that the urls don't break when we rename streams.
strean name: foo bar.com%
before: #narrow/stream/foo.20bar.2Ecom.25
after: #narrow/stream/20-foo-bar.2Ecom.25
For new realms, everything is simple under the new scheme, since
we just parse out the stream id every time to figure out where
to narrow.
For old realms, any old URLs will still work under the new scheme,
assuming the stream hasn't been renamed (and of course old urls
wouldn't have survived stream renaming in the first place). The one
exception is the hopefully rare case of a stream name starting with
something like "99-" and colliding with another stream whose id is 99.
The way that we enocde the stream name portion of the URL is kind
of unimportant now, since we really only look at the stream id, but
we still want a safe encoding of the name that is mostly human
readable, so we now convert spaces to dashes in the stream name. Also,
we try to ensure more code on both sides (frontend and backend) calls
common functions to do the encoding.
Fixes#4713
This enforces `**` around all the mentions including "at-all" and
"at-everyone" mentions. Hence this makes `@all` and `@everyone`
invalid mentions, resulting into proper syntax for these mentions as
`@**all**` and `@**everyone**` respectively.
Note from tabbott: This removes an old feature/syntax, which made
sense back when @Tim was also a way to mention a user with Tim as
their first name. Given how nice typeahead is now, the user part of
the feature was removed a while ago; this should have gone at the same
time.
Fixes: #8143.
If some bug in Bugdown results in a rendered message content that is
bigger than twice the message size, we now just throw an exception
from Bugdown. This is considerably better than the old behavior,
which might result in an enormous message being placed in the database
(potentially, bigger than the 1MB limit to store in memcached), which
would in turn result in tragic consequences.
This fixes#8322, in that it prevents the super bad outcome seen there
(where basically Zulip became unusable for everyone on the stream
where the message is posted). Now, the failure mode is just the
message failing to send. Still not ideal (and requires further work
on the URL embed feature), but not a minor problem, not a major one.
This also amends a commit from Brock Whittaker <brock@zulipchat.com>
that merges two separate functions for YouTube videos and Vimeo videos
into a generic video recall function.
Fixes#7550.
This uses the correct regex for strikethrough. Also, added
a test to make sure that strikethrough works when it contains
link with whitespace.
Fixes#7596.
This name hasn't been right since f7f2ec0ac back in 2013; this handler
sends the log record to a queue, whose consumer will not only maybe
send a Zulip message but definitely send an email. I found this
pretty confusing when I first worked on this logging code and was
looking for how exception emails got sent; so now that I see exactly
what's actually happening here, fix it.
Adds a markdown preprocessor that finds ordered lists where all items
use the same number and change them to be in normal increasing order,
starting with that number.
Fixes#5159.
Hides URL if the message content == image url so that sending gifs or
images feels less cluttered. Uses the url_to_a() function to generate
the expected url string for matching.
Fixes#7324.
Tim Abbott
Aditya Bansal
Shubham Dhama
Anders Kaseorg
Marco Burstein
Vishnu Ks
Rohitt Vashishtha
Steve Howell
Aayush Agrawal
neiljp (Neil Pilgrim)
Harshit Bansal
Marco Burstein
rht
Shreyansh Dwivedi
Andy Perez
akashnimare
Greg Price
Tommy Ip
Andy Perez
Weronika Grzybowska
Xavier Cooney