Commit Graph

179 Commits

Author SHA1 Message Date
Anders Kaseorg 6775715b9f js: Convert static/js/server_events_dispatch.js to ES6 module.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-02-10 10:27:14 -08:00
Anders Kaseorg 1a45d53f3a js: Convert static/js/echo.js to ES6 module.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-02-10 10:27:14 -08:00
Anders Kaseorg 552f4e3d22 eslint: Fix unicorn/no-array-for-each.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-01-25 14:53:19 -08:00
Anders Kaseorg 2c5e9f65f8 eslint: Fix new-cap errors.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-12-10 19:52:22 -08:00
Aman Agrawal 87cdd8433d home: Allow logged out user through home.
We allow user to load webapp without log-in. This is only
be enabled for developed purposes now. Production setups will
see no changes.
2020-11-02 17:07:12 -08:00
Aman Agrawal fbf7cb82a7 web_public_guest: Rename to web_public_visitor for clarity.
Using web_public_guest for anonymous users is confusing since
'guest' is actually a logged-in user compared to
web_public_guest which is not logged-in and has only
read access to messages. So, we rename it to
web_public_visitor.
2020-10-13 16:59:52 -07:00
Anders Kaseorg f92224c744 eslint: Fix unicorn/catch-error-name.
https://github.com/sindresorhus/eslint-plugin-unicorn/blob/master/docs/rules/catch-error-name.md

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-07 16:00:33 -07:00
Anders Kaseorg d72423ef21 eslint: Replace empty-returns with consistent-return.
Instead of prohibiting ‘return undefined’ (#8669), we require that a
function must return an explicit value always or never.  This prevents
you from forgetting to return a value in some cases.  It will also be
important for TypeScript, which distinguishes between undefined and
void.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-09-25 15:17:59 -07:00
Aman Agrawal a8350ebd63 events: Disable events or presence for web-public guest. 2020-09-21 16:07:40 -07:00
Anders Kaseorg 6ec808b8df js: Add "use strict" directive to CommonJS files.
ES and TypeScript modules are strict by default and don’t need this
directive.  ESLint will remind us to add it to new CommonJS files and
remove it from ES and TypeScript modules.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-31 22:09:46 -07:00
Anders Kaseorg d2520cd7e0 js: Replace underscore with lodash and remove it from globals.
Tweaked by tabbott to bump PROVISION_VERSION.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-26 16:12:06 -07:00
Anders Kaseorg 96dcc0ce6e js: Use ES6 object literal shorthand syntax.
Generated by ESLint.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-21 12:42:22 -07:00
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 883e2fd325 js: Remove inner spacing from object literals.
We’re configuring Prettier with bracketSpacing: false.  Generated by
ESLint.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-17 14:31:25 -07:00
Anders Kaseorg 6924d501bc js: Indent case clauses in switch statements.
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 14:31:25 -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 e014ea966a eslint: Enable comma-dangle for functions.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-03 16:55:51 -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
Tim Abbott 94e6cb9abd pointer: Remove frontend logic tracking furthest_read.
Since we are no longer using the "pointer" value sent in
page_params.pointer for anything, there's no value in continuing to
send it from the server to the client.

The remaining code in pointer.js is logic managing state for the
currently selected message.
2020-06-18 12:55:59 -07:00
Anders Kaseorg dbffb2a614 js: Convert _.extend to spread syntax or Object.assign.
This is not always a behavior-preserving translation: _.extend mutates
its first argument.  However, the code does not always appear to have
been written to expect that.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-25 14:09:39 -08:00
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