Commit Graph

92 Commits

Author SHA1 Message Date
Anders Kaseorg b65d2e063d js: Reformat with Prettier.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-17 14:31:25 -07:00
Anders Kaseorg f3726db89a js: Normalize strings to double quotes.
Prettier would do this anyway, but it’s separated out for a more
reviewable diff.  Generated by ESLint.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-17 14:31:24 -07:00
Anders Kaseorg 569b38fe34 js: Fix no-useless-escape errors.
Generated manually, since ESLint doesn’t have a fixer for this.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-17 14:30:52 -07:00
Rohitt Vashishtha 912e372c4e markdown: Remove !avatar() and !gravatar() syntax.
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
2020-07-07 10:39:44 -07:00
Rohitt Vashishtha 0b510cd66d timestamp: Hide timestamp forrmat errors in local echo. 2020-07-06 15:53:56 -07:00
Anders Kaseorg a79322bc94 eslint: Enable prefer-arrow-callback.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-03 16:55:50 -07:00
Anders Kaseorg b0253c5a2e eslint: Enable arrow-parens.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-03 16:53:39 -07:00
Mohit Gupta 8037063746 refactor: Rename bugdown to backend markdown in markdown.js.
This commit is part of series of commits aimed at renaming bugdown to
markdown.
2020-06-29 15:05:15 -07:00
Rohitt Vashishtha 6ea3816fa6 markdown: Use html5 <time> tag for timestamps.
Previously, we had implemented:
    <span class="timestamp" data-timestamp="unix time">Original text</span>
The new syntax is:
    <time timestamp="ISO 8601 string">Original text</time>
    <span class="timestamp-error">Invalid time format: Original text</span>

Since python and JS interpretations of the ISO format are very
slightly different, we force both of them to drop milliseconds
and use 'Z' instead of '+00:00' to represent that the string is
in UTC. The resultant strings look like: 2011-04-11T10:20:30Z.

Fixes #15431.
2020-06-18 14:11:33 -07:00
Rohitt Vashishtha bb579742a2 markdown: Move helper function to rendered_markdown.js. 2020-05-21 12:32:52 -07:00
Rohitt Vashishtha 52c25a9301 markdown-timestamp: Use data-timestamp attribute.
This commit shifts our timestamp syntax to be of the form:

    <span class="timestamp data-timestamp="123456"></span>

since value is not a valid attribute of span elements.
2020-05-20 14:28:08 -07:00
Rohitt Vashishtha b062e8332f markdown: Add timestamp syntax to markdown processors.
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.
2020-05-20 14:23:55 -07:00
Anders Kaseorg 78c70b1424 bugdown: Leave link titles alone until clean_user_content_links.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-05-09 16:32:40 -07:00
Anders Kaseorg ddcb828349 markdown: Match Python-Markdown code whitespace more closely in JS.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-04-18 13:09:51 -07:00
Anders Kaseorg 4f748fb627 markdown: Stop setting target="_blank".
This setting is being overridden by the frontend since the last
commit, and the security model is clearer and more robust if we don't
make it appear as though the markdown processor is handling this
issue.

Co-authored-by: Tim Abbott <tabbott@zulipchat.com>
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-04-01 14:01:45 -07:00
Steve Howell b55d2bc256 markdown: Add helper configuration for mobile.
This refactoring is the first step toward sharing
our markdown code with mobile.  This focuses on
the Zulip layer, not the underlying third party `marked`
library.

In this commit we do a one-time initialization to
wire up the markdown functions, but after further
discussions with Greg, it might make more sense
to just pass in helpers on every use of markdown
(which is generally only once per sent message).
I'll address that in follow-up commits.

Even though it looks like a pretty invasive change,
you will note that we barely needed to modify the
node tests to make this pass.  And we have pretty
decent test coverage here.

All of the places where we used to depend on
other Zulip modules now use helper functions that
any client (e.g. mobile) can configure themselves.
Or course, in the webapp, we configure these from
modules like people/stream_data/hash_util/etc.

Even in places where markdown used to deal directly with
data structures from other modules, we now use functions.
We may revisit this in a future commit, and we might
just pass data directly for certain things.

I decided to keep the helpers data structure completely flat,
so we don't have ugly nested names like
`helpers.emoji.get_emoji_codepoint`.  Because of this,
some of the names aren't 1:1, which I think is fine.

For example, we map `user_groups.is_member_of` to
`is_member_of_user_group`.

It's likely that mobile already has different names
for their versions of these functions, so trying for
fake consistency would only help the webapp.  In some
cases, I think the webapp functions have names that
could be improved, but we can clean that up in future
commits, and since the names aren't coupled to markdown
itself (i.e. only the config), we will be less
constrained.

It's worth noting that `marked` has an `options`
data structure that it uses for configuration, but
I didn't piggyback onto it, since the `marked`
options are more at the lexing/parsing layer vs.
the app-data layer stuff that our helpers mostly
help with.

Hopefully it's obvious why I just put helpers in
the top-level namespace for the module rather than
passing it around through multiple layers of the
parser.

There were a couple places in markdown where we
were doing awkward `hasOwnProperty` checks for
emoji-related stuff.  Now we use the Python
principle of ask-forgiveness-not-permission and
just handle the getters returning falsy data.  (It
should be `undefined`, but any falsy value is
unworkable in the places I changed, so I use
the simpler, less brittle form.)

We also break our direct dependency on
`emoji_codes.json` (with some help from the
prior commit).

In one place I rename streamName to stream_name,
fixing up an ancient naming violation that goes
way back to before this code was even extracted
away from echo.js.  I didn't bother to split this
out into a separate commit, since 2 of the 4
lines would be immediately re-modified in the
subsequent commit.

Note that we still depend on `fenced_code`
via the global namespace, instead of simply
requiring it directly or injecting it.  The
reason I'm postponing any action there is that
we'll have to change things once we move
markdown into a shared library.  (The most
likely outcome is that we'll rename/move both files
at the same time and fix the namespace/require
details as part of that commit.)

Also the markdown code still relies on `_` being
available in the global namespace.  We aren't
quite ready to share code with mobile yet, but the
underscore dependency should not be problematic,
since mobile already uses underscore to use the
webapp's shared typing_status module.
2020-02-18 16:13:38 -08:00
Steve Howell e8de4abb0e markdown: Clean up userMentionHandler().
This mostly moves logic into people.js.
The people functions added here are glorified
two-liners.

One thing that changes here is that we
are a bit more rigorous about duplicate
names.

The code is slightly awkward, because this
commit preserves the strange behavior
that if 'alice|42' doesn't match on
the user with the name "alice" and user_id
"42", we instead look for a user whose
name is "alice|42".  That seems like a
misfeature to me, but there's a test for
it, so I want to check with Tim that it's not
intentional behavior before I simplify
the code.
2020-02-18 16:04:12 -08:00
Steve Howell be45809253 markdown: Extract emoji helpers.
We add this API to emoji.js, so that markdown
doesn't need to look at internal data structures
(or even need to understand any kind of record
format for results).

Here are the functions:

    get_realm_emoji_url()
    get_emoji_name()
    get_emoji_codepoint()

We use the API now in markdown, which eliminates
the need for the markdown parser to require
the emoji JSON file.

Each function has a simple docstring:

    get_emoji_name('1f384') === 'holiday_tree'
    get_emoji_codepoint('avocado') === '1f951'
    get_realm_emoji_url('shrug') === '/user_avatars/2/emoji/images/31.png'

Also we have simple test coverage for the API
(including tests that verify the docstrings).
2020-02-18 16:04:04 -08:00
Steve Howell f603710cd1 markdown: Pass in page_params.realm_filters to initialize(). 2020-02-18 15:52:34 -08:00
Steve Howell d55510b57d refactor: Rename set_realm_filters().
This name was misleading, because we weren't
actually setting realm_filters (that's what
`page_params.realm_filters = realm_filters`
is for); we were instead updating our
realm filter rules.
2020-02-18 15:52:34 -08:00
Steve Howell a3af0e8caa markdown: Remove obsolete dependency on util.js.
We are gonna phase out util.get_message_topic()
in our entire codebase eventually, but we
certainly don't need it here, since the local
echo codepath is using brand new objects that
we construct inside the compose code, and
there's no danger of legacy "subject" data.

My goal for the markdown code is to keep it
free of any accidental dependencies that we
can easily avoid, as I think there's some
possible future where we split out the code
as its own library for people who want to
render Zulip markdown in non-core projects.
2020-02-15 21:18:25 +00:00
Steve Howell cb91b7f312 util: Kill off set_topic_links/get_topic_links.
These functions were just shims that were
used in the somewhat painful migration from
subject_* to topic_*.

The commit 4572be8c27
fixed it so that the client never needs to
deal with "subject_links".

So now we just go back to simpler code:

    message.topic_links = links
    links = message.topic_links
2020-02-15 21:15:48 +00:00
Steve Howell 8deac44a54 markdown: Use early-exit code style for mentions. 2020-02-15 12:30:13 -08:00
Steve Howell 4c5b60d700 markdown: Clean up code for broadcast mentions.
We now handle the all/everyone/stream case at
the top of userMentionHandler.

Previously the code would do strange things
in the case that some user had the name "all"
or "everyone" or "stream".  It would only
affect local echo, and maybe we prevent users
from having those names, so I doubt there
were any real user-facing issues here.

But the new code is clearly more simple and
more correct.
2020-02-15 12:30:13 -08:00
Steve Howell 808c262055 minor: Replace `my_current_user_id` with `===` check. 2020-02-15 12:30:13 -08:00
Steve Howell 5e9df7a0a6 markdown: Move translate_emoticons_to_names().
Most of this logic is specific to markdown
message processing, so we move the code to
markdown.js.

The only responsibility that we leave with
`emoji.js` is to provide us with a list
of translations (regex and replacement text).

But now `markdown.js` actually (directly) executes
those translations against Zulip messages
as part of its preprocessing.

This should simplify the upcoming mobile conversion.
Instead of mobile needing to duplicate this fairly
complex function, they will just need to pass
us in a list similar to `emoji_translations` inside
of `emoji.js`.  That code has a comment that shows
what the data structure looks like.
2020-02-15 12:29:16 -08:00
Steve Howell 9ab07d1038 util.js: Remove util from window.
We now treat util like a leaf module and
use "require" to import it everywhere it's used.

An earlier version of this commit moved
util into our "shared" library, but we
decided to wait on that.  Once we're ready
to do that, we should only need to do a
simple search/replace on various
require/zrequire statements plus a small
tweak to one of the custom linter checks.

It turns out we don't really need util.js
for our most immediate code-sharing goal,
which is to reuse our markdown code on
mobile.  There's a little bit of cleanup
still remaining to break the dependency,
but it's minor.

The util module still calls the global
blueslip module in one place, but that
code is about to be removed in the next
few commits.

I am pretty confident that once we start
sharing things like the typeahead code
more aggressively, we'll start having
dependencies on util.  The module is barely
more than 300 lines long, so we'll probably
just move the whole thing into shared
rather than break it apart.  Also, we
can continue to nibble away at the
cruftier parts of the module.
2020-02-15 12:20:20 -08:00
Anders Kaseorg 8e356368f7 markdown: Fix HTML escaping of &.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-13 17:50:59 -08:00
Anders Kaseorg bf32dfcb9f markdown: Convert realm_filter_map from object to Map.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-12 10:39:01 -08:00
Anders Kaseorg e257253e64 emoji_codes: Replace JS module with JSON module.
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>
2020-02-12 10:09:12 -08:00
Anders Kaseorg 336a279005 js: Convert _.find(a, …) to a.find(…).
And convert the corresponding function expressions to arrow style
while we’re here.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-10 14:08:12 -08:00
Anders Kaseorg 719546641f js: Convert a.indexOf(…) !== -1 to a.includes(…).
Babel polyfills this for us for Internet Explorer.

import * as babelParser from "recast/parsers/babel";
import * as recast from "recast";
import * as tsParser from "recast/parsers/typescript";
import { builders as b, namedTypes as n } from "ast-types";
import K from "ast-types/gen/kinds";
import fs from "fs";
import path from "path";
import process from "process";

const checkExpression = (node: n.Node): node is K.ExpressionKind =>
  n.Expression.check(node);

for (const file of process.argv.slice(2)) {
  console.log("Parsing", file);
  const ast = recast.parse(fs.readFileSync(file, { encoding: "utf8" }), {
    parser: path.extname(file) === ".ts" ? tsParser : babelParser,
  });
  let changed = false;

  recast.visit(ast, {
    visitBinaryExpression(path) {
      const { operator, left, right } = path.node;
      if (
        n.CallExpression.check(left) &&
        n.MemberExpression.check(left.callee) &&
        !left.callee.computed &&
        n.Identifier.check(left.callee.property) &&
        left.callee.property.name === "indexOf" &&
        left.arguments.length === 1 &&
        checkExpression(left.arguments[0]) &&
        ((["===", "!==", "==", "!=", ">", "<="].includes(operator) &&
          n.UnaryExpression.check(right) &&
          right.operator == "-" &&
          n.Literal.check(right.argument) &&
          right.argument.value === 1) ||
          ([">=", "<"].includes(operator) &&
            n.Literal.check(right) &&
            right.value === 0))
      ) {
        const test = b.callExpression(
          b.memberExpression(left.callee.object, b.identifier("includes")),
          [left.arguments[0]]
        );
        path.replace(
          ["!==", "!=", ">", ">="].includes(operator)
            ? test
            : b.unaryExpression("!", test)
        );
        changed = true;
      }
      this.traverse(path);
    },
  });

  if (changed) {
    console.log("Writing", file);
    fs.writeFileSync(file, recast.print(ast).code, { encoding: "utf8" });
  }
}

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-10 14:08:12 -08:00
Anders Kaseorg 02511bff1c js: Automatically convert _.each to for…of.
This commit was automatically generated by the following script,
followed by lint --fix and a few small manual lint-related cleanups.

import * as babelParser from "recast/parsers/babel";
import * as recast from "recast";
import * as tsParser from "recast/parsers/typescript";
import { builders as b, namedTypes as n } from "ast-types";
import { Context } from "ast-types/lib/path-visitor";
import K from "ast-types/gen/kinds";
import { NodePath } from "ast-types/lib/node-path";
import assert from "assert";
import fs from "fs";
import path from "path";
import process from "process";

const checkExpression = (node: n.Node): node is K.ExpressionKind =>
  n.Expression.check(node);
const checkStatement = (node: n.Node): node is K.StatementKind =>
  n.Statement.check(node);

for (const file of process.argv.slice(2)) {
  console.log("Parsing", file);
  const ast = recast.parse(fs.readFileSync(file, { encoding: "utf8" }), {
    parser: path.extname(file) === ".ts" ? tsParser : babelParser,
  });
  let changed = false;
  let inLoop = false;
  let replaceReturn = false;

  const visitLoop = (...args: string[]) =>
    function(this: Context, path: NodePath) {
      for (const arg of args) {
        this.visit(path.get(arg));
      }
      const old = { inLoop };
      inLoop = true;
      this.visit(path.get("body"));
      inLoop = old.inLoop;
      return false;
    };

  recast.visit(ast, {
    visitDoWhileStatement: visitLoop("test"),

    visitExpressionStatement(path) {
      const { expression, comments } = path.node;
      let valueOnly;
      if (
        n.CallExpression.check(expression) &&
        n.MemberExpression.check(expression.callee) &&
        !expression.callee.computed &&
        n.Identifier.check(expression.callee.object) &&
        expression.callee.object.name === "_" &&
        n.Identifier.check(expression.callee.property) &&
        ["each", "forEach"].includes(expression.callee.property.name) &&
        [2, 3].includes(expression.arguments.length) &&
        checkExpression(expression.arguments[0]) &&
        (n.FunctionExpression.check(expression.arguments[1]) ||
          n.ArrowFunctionExpression.check(expression.arguments[1])) &&
        [1, 2].includes(expression.arguments[1].params.length) &&
        n.Identifier.check(expression.arguments[1].params[0]) &&
        ((valueOnly = expression.arguments[1].params[1] === undefined) ||
          n.Identifier.check(expression.arguments[1].params[1])) &&
        (expression.arguments[2] === undefined ||
          n.ThisExpression.check(expression.arguments[2]))
      ) {
        const old = { inLoop, replaceReturn };
        inLoop = false;
        replaceReturn = true;
        this.visit(
          path
            .get("expression")
            .get("arguments")
            .get(1)
            .get("body")
        );
        inLoop = old.inLoop;
        replaceReturn = old.replaceReturn;

        const [right, { body, params }] = expression.arguments;
        const loop = b.forOfStatement(
          b.variableDeclaration("let", [
            b.variableDeclarator(
              valueOnly ? params[0] : b.arrayPattern([params[1], params[0]])
            ),
          ]),
          valueOnly
            ? right
            : b.callExpression(
                b.memberExpression(right, b.identifier("entries")),
                []
              ),
          checkStatement(body) ? body : b.expressionStatement(body)
        );
        loop.comments = comments;
        path.replace(loop);
        changed = true;
      }
      this.traverse(path);
    },

    visitForStatement: visitLoop("init", "test", "update"),

    visitForInStatement: visitLoop("left", "right"),

    visitForOfStatement: visitLoop("left", "right"),

    visitFunction(path) {
      this.visit(path.get("params"));
      const old = { replaceReturn };
      replaceReturn = false;
      this.visit(path.get("body"));
      replaceReturn = old.replaceReturn;
      return false;
    },

    visitReturnStatement(path) {
      if (replaceReturn) {
        assert(!inLoop); // could use labeled continue if this ever fires
        const { argument, comments } = path.node;
        if (argument === null) {
          const s = b.continueStatement();
          s.comments = comments;
          path.replace(s);
        } else {
          const s = b.expressionStatement(argument);
          s.comments = comments;
          path.replace(s, b.continueStatement());
        }
        return false;
      }
      this.traverse(path);
    },

    visitWhileStatement: visitLoop("test"),
  });

  if (changed) {
    console.log("Writing", file);
    fs.writeFileSync(file, recast.print(ast).code, { encoding: "utf8" });
  }
}

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-07 14:09:47 -08:00
Anders Kaseorg 362ab8838b emoji: Convert active_realm_emojis from object to Map.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-06 17:24:43 -08:00
Steve Howell b8f01f9cda people: Rename method to get_by_user_id().
This name is consistent with:

    get_by_email()
    get_by_name()
2020-02-05 12:04:56 -08:00
Steve Howell 8c0b0092a9 Extract util.escape_html. 2020-01-30 13:11:32 -08:00
Steve Howell d0453dc8f4 performance: Use startsWith in many places.
Using startsWith is faster than indexOf, especially for long strings
and short prefixes.  It's also a lot more readable.  The only reason
we weren't using it was when a lot of the code was originally written,
it wasn't available.
2020-01-28 12:47:37 -08:00
Steve Howell 7630b859c3 js: Use IntDict in people.js.
This required lots of manual testing:

    - search/navigate user presence
    - send PM and mention user
    - pay attention to compose fade
    - send stream msg and mention user
    - open Private Messages in top-left and click
    - test unread counts
    - invite user who already has account
    - search for users in search bar
    - check user settings
        - User Groups
        - Users
        - Deactivated Users
        - Bots
    - create a bot
    - mention user groups
    - send group PM then click on lower right
    - view/edit/create streams

If there are still pieces of code that don't convert
ids to ints, the code should still work but report
blueslip errors.

I try to mostly convert user_ids to ints in the callers,
since often the callers are dealing with small amounts
of data, like user ids from huddles.
2020-01-05 12:27:28 -08:00
Rohitt Vashishtha 85c669e366 markdown: Remove redundant checks from /me.
If a message begins with /me, we do not have any cases where the
rendered content would not begin with `<p>/me`. Thus, we can safely
remove the redundant checks both on the backend and frontend.
2019-12-03 17:17:10 -08:00
Anders Kaseorg 28f3dfa284 js: Automatically convert var to let and const in most files.
This commit was originally automatically generated using `tools/lint
--only=eslint --fix`.  It was then modified by tabbott to contain only
changes to a set of files that are unlikely to result in significant
merge conflicts with any open pull request, excluding about 20 files.
His plan is to merge the remaining changes with more precise care,
potentially involving merging parts of conflicting pull requests
before running the `eslint --fix` operation.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2019-11-03 12:42:39 -08:00
Anders Kaseorg d17b577d0c js: Purge useless IIFEs.
With webpack, variables declared in each file are already file-local
(Global variables need to be explicitly exported), so these IIFEs are
no longer needed.

Signed-off-by: Anders Kaseorg <andersk@mit.edu>
2019-10-25 13:51:21 -07:00
Thomas Ip 574c35c0b8 markdown: Render ordered lists using <ol> markup.
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.
2019-09-08 16:42:20 -07:00
Rohitt Vashishtha 8b443a25b8 markdown: Show link href if title is empty.
Fixes #6221.
2019-08-25 21:36:42 -07:00
Rohitt Vashishtha da2b7ef137 minor: Move displaced comment. 2019-08-21 16:34:40 -07:00
Rohitt Vashishtha a7f2bedb15 markdown: Enable hashheadings syntax.
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.
2019-08-02 15:15:34 -07:00
Tim Abbott e8e420bbd9 markdown: Fix marked generation of unnecessarily absolute URLs.
The new versions should exactly match the HTML we generate in the
backend unit test suite.
2019-07-11 15:09:38 -07:00
Rohitt Vashishtha 3698cdcc58 topic-mention: Add Marked implementation as HandleStreamTopic. 2019-07-11 14:53:10 -07:00
Rohitt Vashishtha 047086b81c markdown: Make raw urls in topic names navigable.
We reuse the link regexes we use elsewhere inn markdown
for parsing links in topic names and add a button to open
them in new tabs similar to our behavior with linkifiers
in topic names.

Fixes #12391.
2019-06-27 15:18:42 -07:00
overide 0dcfc22406 markdown: Fix numbered list handling of blank lines between blocks.
This fixes an issue where blank lines between blocks were causing
auto-numbering of list to stop before the blank line resulting
in two separate numbered list instead of one.

Edited significantly by tabbott to explain the tricky details in the
comments.

Fixes: #11651.
2019-03-01 15:29:07 -08:00
Rohitt Vashishtha 92658d2ac9 markdown: Move code related to @mentions to markdown.js.
For consistency, we should keep all the code that works with
@mentions in markdown.js. In this case, message_list_view was
rewriting the contents of the mentions in cases where users'
names had been changed since we rendered their mention.
2019-02-20 10:41:42 -08:00