Commit Graph

158 Commits

Author SHA1 Message Date
Tim Abbott c2f132b8d5 channel: Don't send outgoing HTTP requests during a reload.
This generalizes existing code for the presence code path that is
generically useful for avoiding useless work that will be discarded.

We make an exception for the one type of request that needs to happen
while reloading, namely the one to clean up our event queue.
2020-02-13 15:45:39 -08:00
Tim Abbott 906160f1a3 presence: Re-introduce data filtering when offline.
This should return us to a situation where we won't get blueslip
browser error reporting for users created while a device was offline
just before it reloads.
2020-02-13 15:45:39 -08:00
Anders Kaseorg 7844be6d3a sent_messages: Convert messages from object to Map.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-12 10:39:01 -08:00
Anders Kaseorg 612b237cec js: Convert remaining _.each(a, …) to a.forEach(…).
The _.each calls with an inline function expression have already been
converted to for…of loops.  We could do that here, but using .forEach
when we’re just reusing an existing function seems like a good
guideline.

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
Steve Howell 36aee9e69c presence: Remove suspect_offline flag.
We now use user_ids for presence, so we don't need
to worry about races related to unknown emails
being sent to us.  Now we just update the data
structure based on user_id, and
it will be there when we render the presence
widget for that user_id, or else it will
simply be ignored.

It's not clear to me whether we still need
dont_block here, so I didn't touch that code.

Here is the commit that added the suspect_offline
flag, for easy reference:

f207450cdb
2020-02-04 12:30:36 -08:00
Steve Howell bf9144ff69 presence: Add slim_presence flag.
This flag affects page_params and the
payload you get back from POSTs to this
url:

    users/me/presence

The flag does not yet affect the
presence events that get sent to a
client.
2020-02-04 12:30:34 -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 a547413347 js: Add braces to case blocks declaring variables.
This helps to prepare for the migration of `var` to `let` and `const`.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2019-10-28 15:02:43 -07:00
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
Anders Kaseorg f9bf414b58 pointer.js: Add setter for server_furthest_read.
After migration to an ES6 module, `server_furthest_read` would no
longer be mutable from outside the module.

Signed-off-by: Anders Kaseorg <andersk@mit.edu>
2019-07-08 21:22:54 -07:00
Anders Kaseorg 055ebe76aa pointer.js: Add setter for furthest_read.
After migration to an ES6 module, `furthest_read` would no longer be
mutable from outside the module.

Signed-off-by: Anders Kaseorg <andersk@mit.edu>
2019-07-08 21:22:54 -07:00
Tim Abbott f4aa71fc75 server_events: Fix unnecessary call to insert_new_messages.
When we're handling a single message that was locally echoed, there
will very likely be 0 messages not removed by
`echo.process_from_server`, and we can skip the unnecessary call to
`message_events.insert_new_messages`.  This is a small performance
optimization and logical simplification when sending messages.
2019-02-20 16:24:28 -08:00
Mohit Gupta bf14f4cd7b notification: Show wrong narrow notification for non locally echoed message.
Show "sent to different narrow" notification and other such notification by
notifications.notify_local_mixes for non locally echoed message sent by
current client.

With significant new comments added by tabbott.

Fixes: #11488.
2019-02-13 15:51:41 -08:00
Tim Abbott bdb3da4504 eslint: Add key-spacing linter rule.
Apparently, we didn't have one of these, and thus had a moderate
number of generally very old violations in the codebase.  Fix this and
clear the ones that exist..
2018-12-18 10:41:06 -08:00
Tim Abbott d0f71881f4 docs: Add detailed documentation on the process for sending messages.
This has long been something missing from our suite of documentation.
2018-11-29 16:25:35 -08:00
Tim Abbott 83b127cec1 server_events: Extract functions for managing connection errors.
This cuts a bit of code duplication.
2018-11-29 12:31:08 -08:00
Shubham Dhama 01927fb470 message view: Fix hiding of connection-error message on narrowing streams.
When there is some error in connecting to server(more specifically to the
tornado server) the "Unable to connect to Zulip" connection error message
gets cleared as Django server could send the response of "get" request of
old messages and hence get_old_messages_success hides the error message
even though the connection is not properly established.

Fixes: #5599.
2018-11-29 12:26:41 -08:00
Steve Howell bb3ecb178a Fix bugs related to batching message events.
This is general fix that makes sure that we
apply all message-modifying events after we
apply the events for the initial incoming
messages.

The particular scenario that was reported here
was when you would have two tabs for Zulip,
with one of them open and in a PM view, and
with the open tab being at the bottom of the
feed, such that incoming messages would be
immediately visible.

Now suppose the other person in that PM
conversation sent you a message.

The open tab would properly immediately
mark the message as read, and notify
the server.  The problem was that the closed
tab would not process the main message event
until it "woke up", by which time the flag-update
event was bundled into the same event batch
as the main message event.  We'd then process
the flag-update first, which essentially was
a noop, since the actual message wasn't in
the message store yet.  The user would then
see unread counts increment in the closed tab,
while the open tab didn't increment.  This
was confusing.

Now `server_events.js` processes the actual
message first and does the flag-update as part of a
`post_message_events` loop.

We include events for updating message flags,
deleting messages, and attaching submessages
to messages in the `post_message_events` array.

This bug was a bit difficult to simulate in a dev
environment, since you needed your "open" tab
to be in focus to simulate the race, but as
soon as you tab to another place to deliver
a message (whether from the browser or otherwise),
the open tab is no longer in focus.

I did this in the console of my "open"
tab to work around it:

    unread_ops.process_visible = unread_ops.mark_current_list_as_read;

This problem was easy to reproduce, but it wasn't
entirely consistent.  I often needed to send
several messages in succession to trigger event
batching and force the race condition.  (This wasn't
precisely a "race", as events actually arrive in the
correct order; it was having them arrive in the same
batch that triggered the bug.)
2018-08-26 22:26:28 -07:00
Steve Howell 5d98879922 minor: Rename var to update_message_events. 2018-08-26 22:26:28 -07:00
Steve Howell c7ab3884c6 refactor: Extract reload_state module.
This is part of work to break some of our
nastier circular dependencies in preparation
for our es6 migration.

This commit should facilitate loading leaf-like
modules such as people.js before all of the things
that reload.js depends on.
2018-08-04 13:55:02 +00:00
Armaan Ahluwalia 6d255efe4c app: Prepare JS files for consumption by webpack.
This commit prepares the frontend code to be consumed by webpack.

It is a hack: In theory, modules should be declaring and importing the
modules they depend on and the globals they expose directly.

However, that requires significant per-module work, which we don't
really want to block moving our toolchain to webpack on.

So we expose the modules by setting window.varName = varName; as
needed in the js files.
2018-07-05 10:53:36 +02:00
Shubham Dhama 80a2d5bc59 eslint: Enable `conditionalAssign` config of no-trailing-spaces rule. 2018-06-11 07:51:24 -04:00
Shubham Dhama cc03f9fb8f eslint: Enable space-infix-ops rule.
More about rule at  https://eslint.org/docs/rules/space-infix-ops
2018-06-05 00:47:35 +05:30
Steve Howell 0a3d769911 local echo: Bypass message.flags array.
We no longer set message.flags in the local echo path.

In the markdown parsing step, we just set message.mentioned
directly.

And then we change `insert_new_messages` to no longer
convert flags to booleans, and move that code to only
happen for incoming server message events.
2017-12-26 09:01:21 -05:00
Steve Howell c2860ce214 Set client_gravatar=True in the webapp.
The webapp knows how to compute gravatar URLs, so there is no need
for the server to send us gravatar URLs.
2017-11-07 16:38:14 -08:00
Tim Abbott 8828e96b87 presence: Avoid checking activity when reloading.
We sometimes get blueslip errors from browsers that are clearly still
attempting to reload long after they should have.  These browsers can
produce a lot of unnecessary presence update exceptions.

To solve that, we start checking reload_in_progress in the presence
code path.

While we're at it, we also add some blueslip logging for the reload
code path, in case it becomes useful when debugging future issues.
2017-10-11 20:39:28 -07:00
Tim Abbott c1f12e3f8a scrolling: Fix out-of-order bug in the message list.
The issue has a lot of extra details, but in short, if several
messages were sent at very close to the same time, it's possible that
the event queues will receive the "new message" events out-of-order.
This, in turn, could cause `get_events` to return an incorrectly
sorted block of messages.  These would then be passed into
`message_list.add_messages`, which doesn't handle that sort of
unsorted situation correctly (in short, the `self.first.id()`
comparison checks are not accurate for that situation, since we don't
update the boundaries after the first messages is processed).

The end result of this bug was that it was possible for the message
list to be out-of-order, which in turn would cause exceptions when
scrolling with the mouse.

Fixes #6948.
2017-10-11 15:57:11 -07:00
Rishi Gupta 0286a41c4c tutorial: Remove is_running and defer logic. 2017-08-01 22:38:22 -07:00
Steve Howell 3f06f28ad7 sending messages: Extract sent_messages.js.
This commit extract send_messages.js to clean up code related
to the following things:

    * sending data to /json/report_send_time
    * restarting the event loop if events don't arrive on time

The code related to /json/report changes the following ways:

    * We track the state almost completely in the new
      send_messages.js module, with other modules just
      making one-line calls.

    * We no longer send "displayed" times to the servers, since
      we were kind of lying about them anyway.

    * We now explicitly track the state of each single sent
      message in its own object.

    * We now look up data related to the messages by local_id,
      instead of message_id.  The problem with message_id was
      that is was mutable.  Now we use local_id, and we extend
      the local_id concept to messages that don't get rendered
      client side.  We no longer need to react to the
      'message_id_changed' event to change our hash key.

    * The code used to live in many places:
        * various big chunks were scattered among compose.js,
          and those were all moved or reduced to one-line
          calls into the new module
        * echo.js continues to make basically one-line calls,
          but it no longer calls compose.report_as_received(),
          nor does it set the "start" time.
        * message_util.js used to report received events, but
          only when they finally got drawn in the home view;
          this code is gone now

The code related to restarting the event loop if events don't arrive
changes as follows:

    * The timer now gets set up from within
      send_messages.message_state.report_server_ack,
      where we can easily inspect the current state of the
      possibly-still-in-flight message.

    * The code to confirm that an event was received happens now
      in server_events.js, rather than later, so that we don't
      falsely blame the event loop  for a downstream bug.  (Plus
      it's easier to just do it one place.)

This change removes a fair amount of code from our node tests.  Some
of the removal is good stuff related to us completing killing off
unnecessary code.  Other removals are more expediency-driven, and
we should make another sweep at ramping up our coverage on compose.js,
with possibly a little more mocking of the new `send_messages` code
layer, since it's now abstracted better.

There is also some minor cleanup to echo.resend_message() in this
commit.

See #5968 for a detailed breakdown of the changes.
2017-08-01 08:58:56 -07:00
Greg Price 709c3b50fc tornado: Use a machine-readable error code when an event queue is gone.
This fixes the original issue that #5598 was the root cause of; when
the user returns to a Zulip browser tab after they've been idle past
the timeout (10 min, per IDLE_EVENT_QUEUE_TIMEOUT_SECS), we now
correctly reload the page even if they're using Zulip in German or
another non-English language where we have a translation for the
relevant error message.
2017-07-24 16:41:22 -07:00
Steve Howell 475eb21a5e Revert commits related to client_message_id.
I pushed a bunch of commits that attempted to introduce
the concept of `client_message_id` into our server, as
part of cleaning up our codepaths related to messages you
sent (both for the locally echoed case and for the host
case).

When we deployed this, we had some strange failures involving
double-echoed messages and issues advancing the pointer that appeared
related to #5779.  We didn't get to the bottom of exactly why the PR
caused havoc, but I decided there was a cleaner approach, anyway.
2017-07-14 12:13:35 -07:00
Steve Howell 9ee2be4a0d Use client_message_id as key for sent_messages lookups.
We now use a client-side message id to track the state of our
sent messages.  This sets up future commits to start tracking
state earlier in the message's life cycle.

It also avoids ugly reify logic where we capture an event to
update our data structure to key on the server's message id
instead of the local id.  That eliminates the node test as well.

Another node test gets deleted here, just because it's not
worth the trouble with upcoming refactorings.
2017-07-13 23:42:27 -04:00
Steve Howell 68f8ba0449 Generate client_message_id() sequentially.
This commit starts to decouple client_message_id from local_id.

We don't really take advantage of the decoupling in this
commit--in fact, it's a bit of a pain at first.  But this should
be a fully working checkpoint commit.
2017-07-13 23:42:27 -04:00
Steve Howell 8fbb55df85 Introduce client_message_id on the server.
We are deprecating local_id/local_message_id on the Python server.
Instead of the server knowing about the client's implementation of
local id, with the message id = 9999.01 scheme, we just send the
server an opaque id to send back to us.

This commit changes the name from local_id -> client_message_id,
but it doesn't change the actual values passed yet.

The goal for client_key in future commits will be to:
    * Have it for all messages, not just locally rendered messages
    * Not have it overlap with server-side message ids.

The history behind local_id having numbers like 9999.01 is that
they are actually interim message ids and the numerical value is
used for rendering the message list when we do client-side rendering.
2017-07-13 23:42:27 -04:00
Cory Lynch effd7ef41f server_events: Move initialization to ui_init.js. 2017-07-04 13:54:33 -07:00
Cory Lynch 76a497650b docs: Update feature tutorial for server_events_dispatch.js. 2017-06-02 16:51:46 -07:00
Cory Lynch 5d7828096e Split out server_events_dispatch.js from server_events.js. 2017-06-02 16:49:18 -07:00
Harshit Bansal fc0fb66d28 emoji: Fix realm emoji not appearing in settings page when reopened.
When the emoji settings page was reopened after uploading a realm
emoji without doing a page refresh, the uploaded emoji disappeared
from the emoji list. This was so because the emoji settings page uses
`page_params.realm_emoji` to render the emojis which was not updated
when a emoji was added.

Fixes: #5130.
2017-05-31 09:12:45 -07:00
K.Kanakhin 2434f2d96c messages: Add support for admins deleting messages.
This makes it possible for Zulip administrators to delete messages.
This is primarily intended for use in deleting early test messages,
but it can solve other problems as well.

Later we'll want to play with the permissions model for this, but for
now, the goal is just to integrate the feature.

Note that it saves the deleted messages for some time using the same
approach as Zulip's message retention policy feature.

Fixes #135.
2017-05-29 21:59:38 -07:00
Steve Howell 0a0f567aeb Split out markdown.js from echo.js.
The new module handles markdown rendering.

The code left behind in echo.js does local-echo kind of things
like reifying message ids.
2017-05-09 11:06:10 -07:00
Tim Abbott f207450cdb presence: Avoid throwing exceptions for "missing users" when offline.
This should eliminate the most common javascript traceback one gets
running Zulip in production.
2017-05-04 16:11:05 -07:00
Tim Abbott a28f5db050 presence: Check for unsuspend status on receiving responses.
This is the first part of handling an annoying race that would cause
us to try drawing the right sidebar using (in part) users that we
haven't learned about yet (because we were offline/suspended when they
were created, and we haven't quite realized our event queue is gone yet).
2017-05-04 16:11:05 -07:00
Jack Zhang a9505654da emoji: Replace the old compose emoji picker with the reactions picker.
This removes the old compose emoji picker in its entirety, changing
the few callbacks needed to launch the reactions-style emoji picker
instead and hook it up properly.

Callbacks for reactions and composing messages are distinguished by
selecting for, respectively, the .reaction and .composition classes.

Fixes #4122.
2017-04-30 15:14:42 -07:00
Jack Zhang f8b3ce7d15 emoji: Move all emoji picker logic/events into emoji_picker module.
Added emoji_picker.js to static asset pipeline.
2017-04-30 14:13:36 -07:00
fionabunny 7db8c61aac home.py: move event_queue_id as queue_id to register_ret.
Simplify the page_params generation logic #3853
2017-04-28 21:33:17 -07:00
fionabunny 6d2785c853 home.py: move domains as realm_domains to register_ret.
Part of #3853.
2017-04-28 21:11:56 -07:00
Harshit Bansal 6cb03ea78e frontend: Add UI necessary to change emoji set.
Note that this code is disabled until the infrastructure for the
feature can be finished.

Tweaked by tabbott to use slightly cleaner names for the various sets.
2017-04-24 22:31:30 -07:00
Tejas Kasetty d227a8e35c compose: Re-render emoji picker when realm_emoji is added/deleted.
* reset the emoji popover in case of an event
regarding update of realm_emoji.
* test-node-with-js: Add dependency - popovers module;
In dispath.js to support popovers object.
2017-04-18 12:18:52 -07:00
hackerkid 15cdd23525 Add option for setting timezone in user display settings. 2017-04-14 10:38:21 -07:00