In the old regex, there was no 4th capturing group, hence
cap[4] always gives `undefined`. It is removed now.
Also, we were capturing the whole pattern which is not needed
as it is by default captured in the group with the 0th index.
This reverts commit 9c6d8d9d81 (#16916).
This feature has known bugs, and also wants some design changes to
make it customizable like linkifiers, so we’re retargeting this to
post-4.x.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
We add support to shorten links and test their shortening in
well-organized, clean manner that makes it trivial to extend the
GitHub approach for GitLab and perhaps other services.
We only shorten basic types of GitHub links (issue, PR, commit) that
fit a set of simple common patterns; the default behaviour of Autolink
is kept for everything else.
Logic added in frontend and backend Markdown Processor is identical.
This makes easy to extend the logic for other services like GitLab.
Fixes#11895.
This commit fixes a bug in marked.js which caused it to double-escape
HTML when rendering messages of the form: *[text](url)*.
This fixes a bug introduced in
3bdc8bbaa5, where an unnecessary
escape() call was added for the <em> code path, likely just because it
was adjacent to the others that needed it in the file.
Fix this, and add tests to verify that things are still being escaped
once after removing this extra escape.
Fixes#14845.
Initally, when writing two or more quotes, having
a blank line in between them, merges those quotes.
This created confusion especially in "quote and reply".
This commit fixes such issues. Now two or more quotes
having a blank line in between them, will not get merged.
This change is correct both for usability and for improving our
compatibility with CommonMark.
Fixes#14379.
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>
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:
` 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
We had been using !time() syntax for timestamps so far. Since its
an unreleased feature, we can make changes without affecting many
people.
Fixes#15442.
This adds support for syntax like: !time(Jun 7 2017, 6:30 PM) so that
everyone sees the time in their own local timezone. This can be used
when scheduling online meetings, etc.
This adds some hardcoded values for timezones, because of there
being no sureshot way of determining the timezone easily. However,
since the main way of using the feature should be a typeahead for
entering the time, this shouldn't be cause of much concern.
Fixes#5176.
We are sweeping the codebase to use startsWith
when possible. I kept this on a separate
commit due to us vendoring the library, just
to reduce some noise.
This brings us in line, and also allows us to style these more like
unordered lists, which is visually more appealing.
On the backend, we now use the default list blockprocessor + sane list
extension of python-markdown to get proper list markup; on the
frontend, we mostly return to upstream's code as they have followed
CommonMark on this issue.
Using <ol> here necessarily removes the behaviour of not renumbering
on lists written like 3, 4, 7; hopefully users will be OK with the
change.
Fixes#12822.
Our implementation requires at least 1 space after the
'#' not not break existing linkifiers like '#123', etc.
that generally follow the convention we show in linkifier
examples.
- [valid] : # Hello
- [valid] : # Hello
- [invalid]: #Hello
For the frontend, we have taken the code from v0.7.0 of
upstream marked and made minor changes to avoid having
to refactor a significant part of our marked code.
For the backend, we merely have to change the regex to
force require spaces after #, and add hashheader to our
list of blockparsers.
Fixes#11418.
We had disabled reference style links in bugdown, however,
we hadn't disabled them in marked. This commit rectifies
that and adds test cases for the same.
Fixes#11350.
On the backend, we extend the BlockQuoteProcessor's clean function that
just removes '>' from the start of each line to convert each mention to
have the silent mention syntax, before UserMentionPattern is invoked.
The frontend, however, has an edge case where if you are mentioned in
some message and you quote it while having mentioned yourself above
the quoted message, you wouldn't see the red highlight till we get the
final rendered message from the backend.
This is such a subtle glitch that it's likely not worth worrying about.
Fixes#8025.
These mentions look like regular mentions except they do not
trigger any notification for the person mentioned. These are
primarily to be used when you make a bot take an action and
the bot mentions you, or when you quote a message that mentions
you.
Fixes#11221.
This fixes a set of XSS issues with Zulip's frontend markdown
processor, which is used in a limited set of contexts, such as local
echo of messages and the drafts feature.
The implementation of several syntax elements, including the <em>
syntax, user and stream mentions, and some others failed to properly
escape the content inside the syntax.
Fix this, and add tests for each corrected code path.
Thanks to w2w for reporting this issue.
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.
The character ">" now only starts a blockquote if the resulting
blockquote would be non-empty. Thus, by itself, ">" is now
interpreted literally by bugdown, fixing #687. The message
with contents consisting of ">>>" is now parsed as a doubly
(not triply) nested blockquote with contents ">". Properly
formed blockquotes have identical behavior as before, but now
bugdown can no longer produce empty blockquotes as output.
Fixes#2886, #687.
The intended use of $$ is for inline expressions, not for multiline
ones; ```math is an acceptable alternative for the latter. Hence,
the $$-syntax for inline TeX no longer permits newlines within it.
This was also necessary for the next change to be sensible; namely
allowing for spaces around both $$ when crafting inline TeX instead of
forcing everything to be crammed together, e.g. $$x=7$$. In order to
avoid uninentionally creating inline expressions, the opening and
closing $$'s of an inline expression must now both exactly consist of
two dollar signs, no more and no less.
Fixes: #6488.
This commit removes all code related to headers because
(1) we don't need the code and (2) it splits #**stream**
as a paragraph, which we don't want. This commit also
fixes the inconsistency when #**stream** is on a new line.
Fixes#4678.
The user mention regex was checking for multiple lines,
so it broke when the user mention was on a new line.
This changes the regex AND adds a couple tests to
test inline markdown regexes.
The regex we were using didn't cover all the unicode blocks
to which our emojis belong. This commit fixes the regex to
include all the unicode blocks and also updates the
corresponding JS regex in marked.js.
Fixes: #3460.
An exception in the webapp was trown when an empty mention was sent.
Examples of problematic messages are "@" or "@****".
In order to fix this, the regex that identifies mentions has been
modified, so it now requires the mention to have a "content" (by
replacing the ? quantifier by +).
A test case has been added to `frontend_tests/node_tests/echo.js` to
check that this works properly in the future.
* Fixes handling of multiple stream links and invalid stream names.
* Fixes text regex so it handle hash sign the right way.
* Adds tests for these stream link cases.
After adding the ability to add stream links to messages using
the following pattern '#**stream_name**' there was a problem
with rendering this using our markdown engine because '**' means
bold text so that would render just to bold text.
To solve this I had to add regular expression in marked.js to match
that pattern and when it matches I call handleStreamLinks in echo.js
which will correctly render it to HTML.
Fixes#2218.
[tweaked by tabbott to url-encode the stream name in the URL and
adding the missing "#" in the display].
* Escape " as "
* Enable GFM newlines
* Output a linebreak after <br> in the generated markup
(imported from commit c007ec422054f9fc66a810b66aac70f70a2a1952)
akshatdalton
Anders Kaseorg
Abhijeet Prasad Bodas
Rohitt Vashishtha
Stefan Weil
Anders Kaseorg
Steve Howell
Thomas Ip
Shubham Dhama
Andy Perez
Umair Khan
Joshua Pan
Harshit Bansal
Benjamin Gilbert
Yago González
hackerkid
paxapy
Igor Tokarev
Mohsen Ibrahim
Alex Wilson
Leo Franchi