Commit Graph

184 Commits

Author SHA1 Message Date
Aman Agrawal 8ef52d55d3 markdown: Add support for inline video thumbnails. 2023-10-02 22:39:02 -07:00
Anders Kaseorg 2665a3ce2b python: Elide unnecessary list wrappers.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-09-13 12:41:23 -07:00
Adrián Oliva 732ad89f3d markdown: Fix URL link topic skipping query.
When searching for links inside a topic name, the question mark (?)
was used to split the topic. If a URL had a query after the URL
(e.g., "?foo=bar"), then the query was trimmed from the URL.

Removing the question mark from `basic_link_splitter` is sufficient
to fix this issue. The `get_web_link_regex` function then removes
the trailing punctuation if any, including literal question marks.

Fixes #26368.
2023-09-08 16:17:11 -07:00
evykassirer 0289beb784 emoji: Match emoji sequences in markdown.
Fixes #11767.

Previously multi-character emoji sequences weren't matched in the
emoji regex, so we'd convert the characters to separate images,
breaking the intended display.

This change allows us to match the full emoji sequence, and
therefore show the correct image.
2023-08-23 16:18:15 -07:00
Anders Kaseorg 36dde99308 ruff: Appease SIM118 `"class" not in uncle.keys()`.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-08-17 17:05:34 -07:00
Anders Kaseorg 562a79ab76 ruff: Fix PERF401 Use a list comprehension to create a transformed list.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-08-07 17:23:55 -07:00
Anders Kaseorg c2c96eb0cf python: Annotate type aliases with TypeAlias.
This is not strictly necessary but it’s clearer and improves mypy’s
error messages.

https://docs.python.org/3/library/typing.html#typing.TypeAlias
https://mypy.readthedocs.io/en/stable/kinds_of_types.html#type-aliases

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-08-07 10:02:49 -07:00
Anders Kaseorg 3b09197fdf ruff: Fix RUF015 Prefer `next(...)` over single element slice.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-07-23 15:20:53 -07:00
Anders Kaseorg bd2f327a25 markdown: Remove obsolete comment.
It was obsoleted by commit 07fef56c74
(#19144).

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-07-20 11:00:09 -07:00
Prakhar Pratyush 4c9d26ce17 mention: Send notifications for @topic wildcard mentions.
This commit completes the notifications part of the @topic
wildcard mention feature.

Notifications are sent to the topic participants for the
@topic wildcard mention.
2023-07-17 09:39:24 -07:00
Steve Howell b742f1241f realm emoji: Use a single cache for all lookups.
The active realm emoji are just a subset of all your
realm emoji, so just use a single cache entry per
realm.

Cache misses should be very infrequent per realm.

If a realm has lots of deactivated realm emoji, then
there's a minor expense to deserialize them, but that
is gonna be dwarfed by all the other more expensive
operations in message-send.

I also renamed the two related functions.  I erred on
the side of using somewhat verbose names, as we don't
want folks to confuse the two use cases. Fortunately
there are somewhat natural affordances to use one or
the other, and mypy helps too.

Finally, I use realm_id instead of realm in places
where we don't need the full Realm object.
2023-07-17 09:35:53 -07:00
Prakhar Pratyush 0891f9f65a mention: Determine @topic mention during message rendering.
This commit adds a boolean field `mentions_topic_wildcard`
to the `MessageRenderingResult` dataclass.

The field is set to true only if message rendering determines
the message has an actual topic wildcard mention in it (and not,
e.g., topic wildcard mention syntax inside a code block).

The rendered content for topic wildcard mention is
'<span class="topic-mention">{wildcard}</span>'.

The 'topic-mention' class is the identifier for the wildcard
mention being a topic wildcard mention.

We don't use 'data-user-id="*"' and "user-mention" class for
topic wildcard mentions and eventually plan to remove them for
stream wildcard mentions too in a separate mini-project.
2023-07-13 11:34:48 -07:00
Lauryn Menard d84fd73db4 markdown-processor: Update insertion_index check for multiple classes.
Updates find_proper_insertion_index to check for the inline image
classes as matching at least one of the classes in the element's
attrib["class"] so that cases where an inline preview image has
multiple classes, like YouTube video previews, will have the
correct insertion index.

Fixes #26186.
2023-07-07 11:07:45 -04:00
Alex Vandiver ff53ee8e28 markdown: Only attempt to adjust /wiki/File: paths on Wikipedia. 2023-07-06 17:50:25 -07:00
Prakhar Pratyush 179d5cb37d mention: Replace 'wildcards' with 'stream_wildcards'.
This prep commit replaces the 'wildcard' keyword in the codebase
with 'stream_wildcard' at some places for better readability, as
we plan to introduce 'topic_wildcards' as a part of the
'@topic mention' project.

Currently, 'wildcards = ["all", "everyone", "stream"]' which is an
alias to mention everyone in the stream, hence better renamed as
'stream_wildcards'.

Eventually, we will have:
'stream_wildcard' as an alias to mention everyone in the stream.
'topic_wildcard' as an alias to mention everyone in the topic.
'wildcard' refers to 'stream_wildcard' and 'topic_wildcard' as a whole.
2023-07-03 22:03:17 -07:00
Tim Abbott dce4a3c98e markdown: Remove most of Twitter integration.
Twitter removed their v1 API. We take care to keep the existing cached
results around for now, and to not poison that cache, since we might
be able replace this with something that can still use the existing
cache.
2023-05-29 10:43:35 -07:00
Anders Kaseorg 9db3451333 Remove statsd support.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-04-25 19:58:16 -07:00
Zixuan James Li 268f858f39 linkifier: Support URL templates for linkifiers.
This swaps out url_format_string from all of our APIs and replaces it
with url_template. Note that the documentation changes in the following
commits  will be squashed with this commit.

We change the "url_format" key to "url_template" for the
realm_linkifiers events in event_schema, along with updating
LinkifierDict. "url_template" is the name chosen to normalize
mixed usages of "url_format_string" and "url_format" throughout
the backend.

The markdown processor is updated to stop handling the format string
interpolation and delegate the task template expansion to the uri_template
library instead.

This change affects many test cases. We mostly just replace "%(name)s"
with "{name}", "url_format_string" with "url_template" to make sure that
they still pass. There are some test cases dedicated for testing "%"
escaping, which aren't relevant anymore and are subject to removal.
But for now we keep most of them as-is, and make sure that "%" is always
escaped since we do not use it for variable substitution any more.

Since url_format_string is not populated anymore, a migration is created
to remove this field entirely, and make url_template non-nullable since
we will always populate it. Note that it is possible to have
url_template being null after migration 0422 and before 0424, but
in practice, url_template will not be None after backfilling and the
backend now is always setting url_template.

With the removal of url_format_string, RealmFilter model will now be cleaned
with URL template checks, and the old checks for escapes are removed.

We also modified RealmFilter.clean to skip the validation when the
url_template is invalid. This avoids raising mulitple ValidationError's
when calling full_clean on a linkifier. But we might eventually want to
have a more centric approach to data validation instead of having
the same validation in both the clean method and the validator.

Fixes #23124.

Signed-off-by: Zixuan James Li <p359101898@gmail.com>
2023-04-19 12:20:49 -07:00
Anders Kaseorg 087660a87e requirements: Upgrade Python requirements.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-03-05 14:46:28 -08:00
Anders Kaseorg c1675913a2 web: Move web app to ‘web’ directory.
Ever since we started bundling the app with webpack, there’s been less
and less overlap between our ‘static’ directory (files belonging to
the frontend app) and Django’s interpretation of the ‘static’
directory (files served directly to the web).

Split the app out to its own ‘web’ directory outside of ‘static’, and
remove all the custom collectstatic --ignore rules.  This makes it
much clearer what’s actually being served to the web, and what’s being
bundled by webpack.  It also shrinks the release tarball by 3%.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-02-23 16:04:17 -08:00
Alex Vandiver ccecc8eb84 markdown: Comment why we do not hash or use STATIC_URL for :zulip:. 2023-02-14 17:17:06 -05:00
Anders Kaseorg 0a1904a6a7 markdown: Rewrite YouTube URL parser without regex spaghetti.
This also adds support for the new YouTube Shorts URLs.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-02-09 22:34:51 -08:00
Anders Kaseorg 70ac144d57 markdown: Replace custom cache decorator with functools.lru_cache.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-02-09 15:46:11 -08:00
Anders Kaseorg b91788b945 markdown: Replace deprecated UnescapePostprocessor.
See https://github.com/Python-Markdown/markdown/pull/1272.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-02-04 16:36:47 -08:00
Anders Kaseorg da3cf5ea7a ruff: Fix RSE102 Unnecessary parentheses on raised exception.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-02-04 16:34:55 -08:00
Anders Kaseorg df001db1a9 black: Reformat with Black 23.
Black 23 enforces some slightly more specific rules about empty line
counts and redundant parenthesis removal, but the result is still
compatible with Black 22.

(This does not actually upgrade our Python environment to Black 23
yet.)

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-02-02 10:40:13 -08:00
Anders Kaseorg 4eda29bd86 ruff: Fix RUF005 Consider spread instead of concatenation.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-01-26 10:16:30 -08:00
Anders Kaseorg 7a7513f6e0 ruff: Fix SIM201 Use `… != …` instead of `not … == …`.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-01-23 11:18:36 -08:00
Anders Kaseorg b8b29dc3ad ruff: Fix SIM110 Use `return any(…)` instead of `for` loop.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-01-23 11:18:36 -08:00
Anders Kaseorg ff1971f5ad ruff: Fix SIM105 Use `contextlib.suppress` instead of try-except-pass.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-01-23 11:18:36 -08:00
Anders Kaseorg b0e569f07c ruff: Fix SIM102 nested `if` statements.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-01-23 11:18:36 -08:00
Trident Pancake c6ea673cc9 markdown: Update max inline preview from 10 to 24.
The max inline preview limit was previously increased to 10 by #20789.
However, as issue #23624 shows, it's still causing confusion for users
when they include more than 10 links.

Bump this limit up to 24, which is a multiple of the 4 image preview
per line logic.
2023-01-18 14:58:00 -05:00
Anders Kaseorg 17300f196c ruff: Fix ISC003 Explicitly concatenated string.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-01-04 16:25:07 -08:00
Anders Kaseorg 2c5e114f8b ruff: Fix ISC001 Implicitly concatenated string literals on one line.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-01-04 16:25:07 -08:00
Anders Kaseorg b5cad938b8 ruff: Fix DTZ006 `datetime.datetime.fromtimestamp()` without `tz` argument.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-01-04 16:25:07 -08:00
Anders Kaseorg f7e97b1180 ruff: Fix PLW0602 Using global but no assignment is done.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-01-04 16:25:07 -08:00
Zixuan James Li a3a0103d86 markdown: Calculate linkifier precedence in topics.
This uses the linkifier index among the list of linkifiers in the
replacement as the priority to order the replacement order for
patterns in the topic. This avoids having multiple overlapping matches
that each produce a link.

The linkifier with the lowest id will be prioritized when its pattern
overlaps with another. Linkifiers are prioritized over raw URLs.

Note that the same algorithm is used for local echoing and the
backend markdown processor.

Fixes #23715.

Signed-off-by: Zixuan James Li <p359101898@gmail.com>
2022-12-13 15:16:20 -08:00
Zixuan James Li 4602c34108 markdown: Correctly retrieve indices for repeated matches.
The same pattern being matched multiple times in a topic cannot be
properly ordered using topic_name.find(match_text) and etc. when there
are multiple matches of the same pattern in the topic.

Signed-off-by: Zixuan James Li <p359101898@gmail.com>
2022-12-13 15:16:20 -08:00
Anders Kaseorg e634e3276a ruff: Fix PLC0414 Import alias does not rename original package.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-12-04 22:11:24 -08:00
Anders Kaseorg 73c4da7974 ruff: Fix N818 exception name should be named with an Error suffix.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-11-17 16:52:00 -08:00
Anders Kaseorg 924d530292 ruff: Fix N813 camelcase imported as lowercase.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-11-16 09:29:11 -08:00
Anders Kaseorg 2876ae8e48 ruff: Fix N803 argument name should be lowercase.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-11-16 09:29:11 -08:00
Anders Kaseorg 46955da3a0 ruff: Fix ANN204 missing return type annotation for __init__.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-11-16 09:29:11 -08:00
Alex Vandiver 5d42a0cb00 linkifiers: Support %20 in URLs for topic links.
9381a3bd45 added support for linkifier pattern URLs containing
`%20`-style escapes, but only did so for the codepath which is used in
the message body -- topic links did not understand them.

Expand the support to include when they are substituted into topics.
2022-10-11 14:31:13 -07:00
Anders Kaseorg 8230324068 markdown: Store ZulipMarkdown in members with the right type.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-10-06 15:15:10 -07:00
Anders Kaseorg 3cf91e9e45 markdown: Rename our Markdown subclass to ZulipMarkdown.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-10-06 15:15:10 -07:00
Anders Kaseorg 97be895cf0 markdown: Remove Optional from zulip_rendering_result type.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-10-06 15:15:10 -07:00
Anders Kaseorg d01c99d2ee markdown: Add missing None check in InlineInterestingLinkProcessor.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-10-06 15:15:10 -07:00
Anders Kaseorg 4a61e36def CVE-2022-36048: Rewrite only specific local links to relative.
Due to mismatches between the URL parsers in Python and browsers, it
was possible to hoodwink rewrite_local_links_to_relative into
generating links that browsers would interpret as absolute.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-08-24 16:29:09 -07:00
N-Shar-ma ef044b8697 markdown: Update characters allowed before @ and stream mentions.
Now the following characters are allowed before @-mentions and stream
references (starting with #) for proper rendering - {, [, /.

This commit makes the markdown rendering consistent with autocomplete
(anything that is autocompleted is also rendered properly).
2022-08-06 19:29:39 -07:00