Commit Graph

12978 Commits

Author SHA1 Message Date
Max Zawisa 0e40cc72af newrelic: Added owner field and cleaned up code.
I reformatted the tests and view to include information about who
acknowledged and closed the alert. Only includes the information about
the owner if there was an owner.

Made a few small changes to the refactored bit as requested in review.
2020-12-15 12:04:46 -08:00
Max Zawisa 57e847ab89 newrelic: refactor of time input handling.
Moved time formatting check and conversion to
zerver/lib/webhooks/common.py. Updated tests slightly to match new
output. Removed duration from the calculation because the difference
is less than the precision of output and it complicated the error
handling.
2020-12-15 12:04:46 -08:00
Max Zawisa ec00557962 docs: Updated New Relic documentation.
The docs are updated to work with the new webhook and new process on
https://one.newrelic.com.
2020-12-15 12:04:46 -08:00
Mateusz Mandera b652cc786c django3: Remove remaining postgresql_psycopg2 use.
Removed in Django 3.0.
2020-12-15 11:52:32 -08:00
angela s 64becb20b5
logging: Set decorator tests to use assertLogs.
Fixes part of #15331.
2020-12-15 11:46:25 -08:00
Alex Vandiver 438d2aa632 digests: Ensure that the teaser_data can be JSON-serialized.
Leaving this as a set means that it fails in zerver.lib.send_email
when serializing into a ScheduledEmail object.
2020-12-15 11:44:50 -08:00
Alex Vandiver 7c849fa940 slack: Check token access scopes before importing.
The Slack API always (even for failed requests) puts the access scopes
of the token passed in, into "X-OAuth-Scopes"[1], which can be used to
determine if any are missing -- and if so, which.

[1] https://api.slack.com/legacy/oauth-scopes#working-with-scopes
2020-12-15 11:33:15 -08:00
Anders Kaseorg 415897f491 api docs: Use normal async/await code in JavaScript examples.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-12-15 11:32:18 -08:00
Anders Kaseorg bf45f921a7 url_preview: Allow Beautiful Soup to get the charset from <meta>.
An HTML document sent without a charset in the Content-Type header
needs to be scanned for a charset in <meta> tags.  We need to pass
bytes instead of str to Beautiful Soup to allow it to do this.

Fixes #16843.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-12-15 11:30:57 -08:00
Siddharth Asthana daac7536f3 accounts/deactivated: Show deactivated_redirect url if present
If a user visits a realm which has been deactivated and it's
deactivated_redirect field is set, we should have a message telling the
user that the realm has moved to the deactivated_redirect url.
2020-12-14 21:04:52 -08:00
Siddharth Asthana 82f5759299 Realm: Add a deactivated_redirect URLField to Realm object.
We export a realm's data, and disable the realm, because the user
is moving from Zulip Cloud (e.g. https://example.zulipchat.com/) to
self-hosting or another platform (e.g. https://zulip.example.com/)
which we do not control. This commit adds a field in the realm object
called deactivated_redirect to store the url to which the realm has
moved.
2020-12-14 21:04:52 -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
Puneeth Chaganti 5dc3489166 webhooks/sentry: Fix URL generated in transform_webhook_payload.
The URL incorrectly had `event` in the URL path, instead of `events`.

Closes #16783
2020-12-02 12:28:45 -08:00
Puneeth Chaganti b7a08323aa webhooks/sentry: Use received key when timestamp key is absent. 2020-12-02 12:28:45 -08:00
Sundar Guntnur cbb7fb8ac0 anchor_value: Fix parsing of large anchor values.
This handles the conditions when anchor values are larger than
LARGER_THAN_MAX_MESSAGE_ID by clamping them down to it.  Also added
tests for the function parse_anchor_value.

Fixes #16768.
2020-12-02 11:00:22 -08:00
Mateusz Mandera 43a0c60e96 exceptions: Make RateLimited into a subclass of JsonableError.
This simplifies the code, as it allows using the mechanism of converting
JsonableErrors into a response instead of having separate, but
ultimately similar, logic in RateLimitMiddleware.
We don't touch tests here because "rate limited" error responses are
already verified in test_external.py.
2020-12-01 13:40:56 -08:00
Steve Howell 92ce2d0e31 events: Fix apply_event for streams.
In 1bcb8d8ee8 I made
it so the webapp doesn't include "streams" in its
state from `fetch_initial_state_data`, but I didn't
address all the places in apply_event.
2020-12-01 13:01:38 -08:00
Steve Howell c566ecfb30 minor: Remove dead code in events test. 2020-12-01 13:01:38 -08:00
Vishnu KS dabbc3445a webhooks: Properly format the currency amount for refunds.
By default all Stripe API amounts are in the currency's smallest unit.
It's upto us to convert it to a bigger unit and show it to the end user.
And refund event used to show the currency in the smallest unit which makes
the output wrong when it comes to most currencies like USD, Europ, INR etc
which uses a bigger unit(eg Dollar instead of Cents) as the standard.
2020-11-29 18:11:24 -08:00
Max Zawisa f05a04e000
webhooks: Update NewRelic webhook for new format.
Update the New Relic webhook and tests to match the format specified
in the New Relic documentation. The new format sends a json body
instead of using url parameters. The old format is no longer supported
by New Relic according to their support staff; as a result, the fixtures for 
the old test cases were removed. Added fixtures for new test cases.

Fixes: #16393.
2020-11-18 16:19:08 -08:00
Anders Kaseorg 13e35bfa94 mypy: Use sqlalchemy-stubs.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-11-16 18:17:41 -08:00
Anders Kaseorg 8e0240300a message_fetch: Skip intermediate mutation in limit_query_to_range.
This avoids extra mypy annotations.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-11-16 18:17:41 -08:00
Anders Kaseorg d0d8c358b3 lint: Migrate typing.Text check to semgrep.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-11-16 18:17:41 -08:00
Steve Howell 99e725cbde populate_db: Simplify how we create reactions.
For 3000 messages and 400 users, this saved
about 30 seconds.

We only do two queries per batch of messages
now, and the algorithm is easier to analyze,
as it's just three nested loops.
2020-11-16 17:19:23 -08:00
Vishnu KS 5eb63ddb7a webhooks: Handle dispute events with object IDs prefixed with du.
Sometimes the dispute object IDs are prefixed with `du` instead of `dp`.

https://freenode.logbot.info/stripe/20200605#c4059469

The correct long-term fix here would be to stop using object IDs to
detect the object type of these events and instead maybe make use of
"object" key instead.

https://stripe.com/docs/api/disputes/object#dispute_object-object
2020-11-16 17:05:54 -08:00
Steve Howell e2e0f06b2a email digests: Call get_recent_topics once per batch.
Once we start processing digests in batch, this will
let us amortize the expense of the message query
over multiple users.
2020-11-16 08:59:29 -08:00
Steve Howell 428f0564a0 minor: Move context code down in the function.
This will make a subsequent diff a bit less noisy.
2020-11-16 08:59:29 -08:00
Steve Howell 1d1e45e9ec digests: Use UserActivityInterval for user activity.
Note that we are much more efficient about finding
active users here:

    - we do one query per realm (instead of per-user)
    - we pass the cutoff date to the database
    - we get back just a list of distinct ids
2020-11-16 08:59:29 -08:00
Steve Howell b52f56080e performance: Just get user_ids to queue digest emails. 2020-11-16 08:59:29 -08:00
Steve Howell e13e5d104d refactor: Only require user_id for inactive_since().
This function is going away completely soon.  It is
querying everybody's entire UserActivity history instead
of passing the cutoff date to the database!
2020-11-16 08:59:29 -08:00
Steve Howell d0260392f7 digests: Get user objects from the database.
The query counts increase here for somewhat
contrived reasons.  The tests before this
commit reflected a successful trip to the
UserProfile cache, but that's not actually
realistic in practice.
2020-11-16 08:59:29 -08:00
Steve Howell 7737413cec digest tests: Improve gather_new_streams test.
We don't need to mock the dates here.  We also
explicitly clear out all streams first, and then
we explicitly test with both the stream being
current and the stream being old.
2020-11-16 08:59:28 -08:00
Steve Howell 9538edde06 digest tests: Simplify bots test.
We can use the _enqueue_emails_for_realm helper
to avoid all the Tuesday-related logic here.

We also don't bother to create UserActivity
records, since the bot gets excluded by virtue
of its being a bot.  (Also, the date ranges
here were sketchy due to the time mocking.)
2020-11-16 08:59:28 -08:00
Steve Howell 0624833af6 digest tests: Improve Tuesday tests.
If we're mocking time, we should do it consistently.
2020-11-16 08:59:28 -08:00
Steve Howell 2f4d7a6171 tests: Fix test_inactive_users_queued_for_digest.
We can avoid all the date mocking now for all
but a couple tests that exercise the is-it-Tuesday
logic.

And this test now correctly tests that we exclude
recently active users.

And this allows us to remove the other test.
2020-11-16 08:59:28 -08:00
Steve Howell e49a482baf email digests: Make transactions atomic. 2020-11-16 08:59:28 -08:00
Steve Howell cf6bcfb84a digest emails: Exclude users who had recent digests.
This code protects us in case we ever need to re-run
email digests twice in the same day.
2020-11-16 08:59:28 -08:00
Steve Howell fb3d4c1618 digest tests: Avoid warnings about naive time. 2020-11-16 08:59:28 -08:00
Steve Howell 4271442fba email digests: Write RealmAuditLog rows. 2020-11-16 08:59:28 -08:00
Mateusz Mandera 4f47f35cb4 auth: Handle the case of invalid subdomain at /fetch_api_key endpoint. 2020-11-13 16:43:17 -08:00
Anders Kaseorg 1275613812 requirements: Upgrade mypy to 0.790.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-11-12 15:44:30 -08:00
Anders Kaseorg 8ba95063d5 test_markdown: Construct FencedBlockPreprocessor with a real Markdown.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-11-10 15:54:28 -08:00
Anders Kaseorg e7e1fde6ec fenced_code: Use immutable type for codehilite_conf.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-11-10 15:54:28 -08:00
Anders Kaseorg fbf8ce0305 markdown: Add types for extra Markdown members.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-11-10 15:54:27 -08:00
Anders Kaseorg b48bdc65b9 markdown: Fix AlertWordNotificationProcessor.run type.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-11-10 15:54:27 -08:00
Anders Kaseorg 9573f6dc00 markdown: Fix build_block_parser type.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-11-10 15:54:27 -08:00
Anders Kaseorg 4398eecd2b markdown: Use immutable type for extension config.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-11-10 15:54:27 -08:00
Anders Kaseorg 060036dfd5 markdown: Merge build_engine into Markdown constructor.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-11-10 15:54:27 -08:00
Anders Kaseorg 08c64f5cfa markdown: Fix imports for compatibility with typeshed stubs.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-11-10 15:54:27 -08:00
Anders Kaseorg 2a8a59f548 test_queue_worker: Simplify worker_queue_names computation.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-11-10 15:46:04 -08:00
Anders Kaseorg dc84e9696c mypy: Fix types for redis.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-11-10 15:46:04 -08:00
Anders Kaseorg 3a8cf869db python: Convert os.open(…, O_EXCL) to open(…, "x").
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-11-09 14:31:01 -08:00
Puneeth Chaganti 358f1f9ba7 webhooks/sentry: Support integration configured as webhook.
Sentry allows adding simple webhooks without going through the process
of creating an Internal Integration in Sentry's Integration
Platform[1] (which our docs recommend).

The payload from sent from such a (simple) webhook integration is
slightly different from the payload sent by an Internal Integration
webhook. This commit tries to wrangle this payload into a form that is
usable by our webhook handler to send a notification message.

[1]: https://sentry.io/integration-platform/
2020-11-09 12:02:49 -08:00
Mateusz Mandera 47228f3a95 actions: Implement do_delete_user.
To have a reasonable way of creating the dummy user without duplicating
code, we need change create_user to have the optional force_id argument.
2020-11-09 11:58:02 -08:00
akshatdalton 806c1a0b8b markdown: Fix flickering of embedded link inside Italic.
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.
2020-11-06 10:09:15 -08:00
Steve Howell 5da4332620 minor: Add order-by-id to digest message query.
The order-by-id is now explicit, and I add
comments to explain the select_related tables.
2020-11-06 10:05:46 -08:00
Steve Howell 936171d258 refactor: Extract DigestTopic class.
This gets us away from a lot of dictionary soup.
2020-11-06 10:05:46 -08:00
Steve Howell e8b6c56322 refactor: Simplify get_hot_topics().
The code we deleted here was no longer
doing anything.

Maybe the code was always dead, or maybe it
was written during a time when topics_by_diversity
and topics_by_length actually had different keys.

But now it's clearly cruft.

If we have 4 or more topics, then the code above
it would already have populated the list with 4
elements, and the `if num_convos < 4` condition
would evaluate to False.

And if we had 3 or fewer topics, then we would
have already put all possible topics into our
result, and the `topics_by_diversity[num_convos:4]`
slice would be empty.

It's possible that we should just have a simple
heuristic for topic hotness like `10*num_senders
+ messages`, so we don't have to maintain this
fiddly function, and we can just do something like
`topics_by_score[:4]`.
2020-11-06 10:05:46 -08:00
Steve Howell c5dc9d386f refactor: Use sets of stream_ids for email digests.
I now use sets for stream_ids in more of the digest
code.

As part of this I replaced exclude_subscription_modified_streams
with streams_recently_modified_for_user.

It's easier for the caller to just ask for ids
to delete from its callee than it is to pass
in a set/list to mutate.

The simpler boundary between the functions makes
the tests easier to write--you can see the
`filtered_streams` logic goes away in this diff.

I also make the tests a bit more thorough by using
combinations of Cordelia/Othello and Verona/Denmark
to try to find multiple possible flaws.

And I make the time intervals longer than 1s to
avoid false negatives from slow CI boxes.
2020-11-05 17:42:43 -08:00
Steve Howell 88a57ed4ac bulk digest: Get stream subscriptions in bulk.
If we have multiple users, this reduces the amount
of queries we need to do, because we get all
subscriptions for all users in a single query
to Subscription.

For the single-user case, we are introducing an
extra query hop, but the database is doing
roughly the same work, because we are just breaking
up this complex query into two hops:

    messages =
        select ...  from message
        where recipient__type_id in (
            select stream_id from subscription
            where ...
        )

Now it's more like:

    stream_ids =
        select stream_id from subscription
        where ...

    messages =
        select ... from message
        where recipient__type_id in stream_ids
2020-11-05 09:36:59 -08:00
Steve Howell c83db37161 email digests: Introduce bulk methods for digest.
Note that we are not changing anything semantically
or algorithmically yet.  The only overhead here
for the single-user case is boxing and unboxing
data into single-item dicts and lists.

The interfaces for callers in the view and the
queue processor remain the same for now.
2020-11-05 09:36:59 -08:00
Steve Howell 7c89e46731 minor: Clean up some code formatting. 2020-11-05 09:36:59 -08:00
Steve Howell 4bd02eea19 minor: Use user, not user_profile, in some digest code. 2020-11-05 09:36:59 -08:00
Steve Howell 0e2d02b0a2 digest tests: Count cache tries. 2020-11-05 09:36:59 -08:00
Steve Howell 127f4e1291 digest tests: Add more users to bulk digest test. 2020-11-05 09:36:59 -08:00
Steve Howell 89cb3fa841 digest tests: Localize mocks.
We didn't need the enough-traffic mock.

We also continue to prep for testing multiple users.

I also finally remove a comment that is about to
be addressed (and which inaccurately refers to huddles).
2020-11-05 09:36:59 -08:00
Steve Howell 1ec16dd1da digest tests: Prep to test bulk digests.
All this does, essentially, is put the logic
we used to test for othello inside of a loop.

We'll add more users in the next commit.
2020-11-05 09:36:59 -08:00
Steve Howell e31326c823 refactor: Extract get_digest_context.
This eliminates the union type and boolean parameter,
and it makes it a bit easier to migrate to a
bulk-get approach.
2020-11-05 09:36:59 -08:00
Steve Howell 217967f743 refactor: Extract get_hot_topics.
This extraction will make a bit more sense when
we start doing bulk operations on a realm to
get digests, but even now, it encapsulates the
slightly complex way we cherry-pick the top 4
topics for a user.
2020-11-05 09:36:59 -08:00
Steve Howell 5a6d6f81ff refactor: Extract get_recent_topic_activity. 2020-11-05 09:36:59 -08:00
Steve Howell f987b014b3 refactor: Rename conversation to topic.
Not only is topic shorter, but the name makes
it clear that we're not dealing with abstract
conversations here--we are truly bucketing by
topic.
2020-11-05 09:36:59 -08:00
Steve Howell 6ac3cd3534 refactor: Use list of topics, not tuples. 2020-11-05 09:36:59 -08:00
Steve Howell 878e938a89 minor: Rename conversation_diversity to conversation_senders. 2020-11-05 09:36:59 -08:00
Steve Howell 6dc8250e9a mypy: Add TopicKey type for digests. 2020-11-05 09:36:59 -08:00
Steve Howell 96f6064b18 refactor: Move Messages query down the digest stack.
This prep step is mostly for diff hygiene; the next
commit will make the code a bit nicer.

The original code here had the nice property that
most (but not all) of the DB work happened up
front in `handle_digest_email`, and none of the
DB work was delegated to the callers.  But I
prefer the tradeoff of making the helpers a bit
more cohesive--let them get the data they need.
And we have query-count coverage in our tests,
so there's no real danger of having helpers
down in the stack insidiously doing a bunch of
extra DB hops.
2020-11-05 09:36:59 -08:00
Anders Kaseorg 13c11ec5f3 openapi: Fix escaping in curl command generation.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-11-05 09:36:31 -08:00
Steve Howell c1f134a3a4 performance: Use ORM to fetch sender in render_markdown.
In 709493cd75 (Feb 2017)
I added code to render_markdown that re-fetched the
sender of the message, to detect whether the message is
a bot.

It's better to just let the ORM fetch this.  The
message object should already have sender.

The diff makes it look like we are saving round trips
to the database, which is true in some cases.  For
the main message-send codepath, though, we are only
saving a trip to memcached, since the middleware
will have put our sender's user object into the
cache.  The test_message_send test calls internally
to check_send_stream_message, so it was actually
hitting the database in render_markdown (prior to
my change).
2020-11-05 09:35:15 -08:00
Steve Howell 637f596751 tests: Fix queries_captured to clear cache up front.
Before this change we were clearing the cache on
every SQL usage.

The code to do this was added in February 2017
in 6db4879f9c.

Now we clear the cache just one time, but before
the action/request under test.

Tests that want to count queries with a warm
cache now specify keep_cache_warm=True.  Those
tests were particularly flawed before this change.

In general, the old code both over-counted and
under-counted queries.

It under-counted SQL usage for requests that were
able to pull some data out of a warm cache before
they did any SQL.  Typically this would have bypassed
the initial query to get UserProfile, so you
will see several off-by-one fixes.

The old code over-counted SQL usage to the extent
that it's a rather extreme assumption that during
an action itself, the entries that you put into
the cache will get thrown away.  And that's essentially
what the prior code simulated.

Now, it's still bad if an action keeps hitting the
cache for no reason, but it's not as bad as hitting
the database.  There doesn't appear to be any evidence
of us doing something silly like fetching the same
data from the cache in a loop, but there are
opportunities to prevent second or third round
trips to the cache for the same object, if we
can re-structure the code so that the same caller
doesn't have two callees get the same data.

Note that for invites, we have some cache hits
that are due to the nature of how we serialize
data to our queue processor--we generally just
serialize ids, and then re-fetch objects when
we pop them off the queue.
2020-11-05 09:35:15 -08:00
Tim Abbott eae14baa05 api: URL-quote password when testing authentication API.
The passwords generated for our development environment / test suite
include the `+` character, which needs to be quoted when encoded as an
HTTP POST parameter.

This is hopefully sufficient to fix the CI failures we've seen with
the tests for POST /api/v1/fetch_api_key; I haven't reproduced the
failure so am not completely sure.
2020-11-03 15:55:30 -08:00
YashRE42 967efc32d2 widgets: Remove tictactoe example widget.
Steve asked me to remove this, since the tictactoe game was always
intended as a proof of concept. Now that we have poll and todo
widgets, the sample code for tictactoe has much less value.

We replace the content and type in test_widgets.py to maintain
coverage.
2020-11-03 14:46:39 -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
shanukun be39672026 api_docs: Document the /fetch-api-key endpoint.
With tweaks by tabbott to document addition details.

Fixes: #16408.
2020-11-02 16:45:42 -08:00
shanukun da9d586254 openapi: Add parameter examples for fetch api key endpoints. 2020-11-02 16:45:42 -08:00
Anders Kaseorg ac5cbf7693 Revert "markdown: Escape lang when echoing back custom non-pygments languages."
This reverts commit 564b199fe6, which
was part of #16308.

Escaping is either required or incorrect; it is never “defensive”.
This escaping is incorrect.  lxml already escapes attributes during
serialization (any other behavior would be a serious bug), and
additional escaping just results in double escaping.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-11-02 16:23:48 -08:00
akshatdalton 620e9cbf72 markdown: Fix merging of separate quotations.
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.
2020-10-30 15:21:15 -07:00
Mateusz Mandera cbeeadab16 delete_realm: Register a post_delete Realm handler.
By registering a post_delete handler to clear appropriate caches in a
nicer way, we can get rid of the ugly flush-memcached call in the
delete_realm command.
2020-10-30 11:43:03 -07:00
Alex Vandiver bff503feb4 delete_realm: Add command to completely remove realms.
This will need some tweaking in upcoming commits.
2020-10-30 11:42:40 -07:00
Anders Kaseorg 3c663e48db url_encoding: Skip unnecessary encode before quote.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-30 11:36:38 -07:00
Anders Kaseorg df10b306a6 python: Remove force_bytes.
We are generally good enough at types to know whether a value is str
or bytes.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-30 11:36:38 -07:00
Anders Kaseorg cc55393671 python: Open text files as text to skip decode operations.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-30 11:36:38 -07:00
Anders Kaseorg 18d0e4664c python: Replace binascii with bytes.hex to skip some decode operations.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-30 11:36:38 -07:00
Anders Kaseorg aaa7b766d8 python: Use universal_newlines to get str from subprocess.
We can replace ‘universal_newlines’ with ‘text’ when we bump our
minimum Python version to 3.7.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-30 11:36:38 -07:00
Anders Kaseorg 9281dccae4 python: Serialize lxml elements directly to str.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-30 11:36:38 -07:00
Anders Kaseorg 7c4f68d9cf python: Skip unnecessary decode before BeautifulSoup parsing.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-30 11:36:38 -07:00
Anders Kaseorg 86e8d81c7f python: Skip unnecessary decode before JSON parsing.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-30 11:36:38 -07:00
Anders Kaseorg 1802a50cc9 python: Use requests.Response.text instead of decoding content.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-30 11:36:38 -07:00
Tim Abbott 067cd3a97a docs: Remove incorrect references to chat.zulip.org.
Most of these are Help Center links that should be pointing to the
production Help Center.
2020-10-29 16:46:40 -07:00
Tim Abbott 3b9c726fc6 outgoing_webhook: Avoid logging a bytes string.
This fixes the new assertLogs() tests failing in CI; we fixed the
weird use of bytes in the test, but not in the runtime code.
2020-10-29 15:55:11 -07:00
sahil839 7106069d4d migration: Add migration to remove default status of private streams.
This commit adds migration which removes default status of exisitng
default private streams, i.e. private stream exists but they are no
longer default.
2020-10-29 15:47:34 -07:00
sahil839 b29d39195c streams: Do not allow default streams to be private.
We now do not allow to make a stream private which is already
a default stream.
2020-10-29 15:47:32 -07:00
sahil839 557ca0802c streams: Do not allow private streams to be set as default.
We now do not allow to set a private stream as default.
2020-10-29 15:43:37 -07:00
m-e-l-u-h-a-n cbfd6464a5 logging: replace mock.patch() for logging with assertLogs()
This commit removes mock.patch with assertLogs().

* Adds return value to do_rest_call() in outgoing_webhook.py, to
  support asserting log output in test_outgoing_webhook_system.py.

* Logs are not asserted in test_realm.py because it would require to users
  to be queried using users=User.objects.filter(realm=realm) and the order
  of resulting queryset varies for each run.

* In test_decorators.py, replacement of mock.patch is not done because
  I'm not sure if it's worth the effort to replace it as it's a return
  value of a function.

Tweaked by tabbott to set proper mypy types.
2020-10-29 15:37:45 -07:00
Hemanth V. Alluri 99cf37dc51 drafts: Make the ID of the draft a part of the draft dict.
Then because the ID is now part of the draft dict, we can
(and do) change the structure of the "drafts" parameter
returned from `GET /drafts` from an object (mapping ID to
data) to an array.

Signed-off-by: Hemanth V. Alluri <hdrive1999@gmail.com>
2020-10-29 11:06:04 -07:00
Hemanth V. Alluri 8d59fd2f45 tests/drafts: Simplify create_and_check_drafts_for_success.
Sometimes we don't need to specify the expected_drafts field.
So by removing it, we can reduce the clutter a bit.

Signed-off-by: Hemanth V. Alluri <hdrive1999@gmail.com>
2020-10-29 11:06:04 -07:00
Hemanth V. Alluri e60925b3e8 drafts: Change "timestamp" from float to integer.
Now the timestamp returned in a draft dict will always be an int.
The endpoints will still accept either an int or a float.

Signed-off-by: Hemanth V. Alluri <hdrive1999@gmail.com>
2020-10-29 11:06:04 -07:00
Abhijeet Prasad Bodas e98a8856c7 logging: Add logging in deferred_work queue processor.
Adds logging statements in deferred_work queue consume.
2020-10-29 10:34:53 -07:00
m-e-l-u-h-a-n be7a70e742 logging: Remove unnecessary mock.patch() for logging.
Our test-backend validation confirms that we don't log anything to
stdout in the tests, so the fact that CI passes with this removes
shows there was nothing being logged.
2020-10-28 23:15:27 -07:00
Vishnu KS fdea49742c apps: Use GitHub API for generating the web app download link. 2020-10-28 23:04:14 -07:00
ryanreh99 dfa7ce5637 uploads: Support non-AWS S3-compatible server.
Boto3 does not allow setting the endpoint url from
the config file. Thus we create a django setting
variable (`S3_ENDPOINT_URL`) which is passed to
service clients and resources of `boto3.Session`.

We also update the uploads-backend documentation
and remove the config environment variable as now
AWS supports the SIGv4 signature format by default.
And the region name is passed as a parameter instead
of creating a config file for just this value.

Fixes #16246.
2020-10-28 21:59:07 -07:00
ryanreh99 1c370a975c refactor: Access a bucket by calling `zerver.lib.uploads.get_bucket`. 2020-10-28 21:52:08 -07:00
Alex Vandiver f4eae83542 export: Only include real, active humans in the displayed count. 2020-10-28 18:31:06 -07:00
Alex Vandiver 3037e22f61 tornado: Never use proxies when talking from Django to Tornado.
The `no_proxy` parameter does not work to remove proxying[1]; in this
case, since all requests with this adapter are to the internal Tornado
process, explicitly pass in an empty set of proxies to disable
proxying.

[1] https://github.com/psf/requests/issues/4600
2020-10-28 12:13:04 -07:00
Alex Vandiver 97745688ca docs: Link to the new doc home of the email gateway. 2020-10-28 12:13:04 -07:00
Alex Vandiver 2b0bbbb882 tools: Rename postgres to postgresql in tool names. 2020-10-28 11:57:02 -07:00
Alex Vandiver 5eb8064a1a install: Rename postgres options to postgresql. 2020-10-28 11:55:32 -07:00
Alex Vandiver 1f7132f50d docs: Standardize on PostgreSQL, not Postgres. 2020-10-28 11:55:16 -07:00
Alex Vandiver 142de0f670 queue: Increase default timeout to 30s, from 10s.
Not all of the workers are known to be safe to interrupt; they might
leave inconsistent state.  As such, terminating them with timeouts
should currently only be a last-resort against stalled queues, not a
regular occurrence.
2020-10-27 16:39:31 -07:00
Alex Vandiver c73dd194f0 sentry: Group all worker timeouts together, by queue.
Since the exception can be triggered at arbitrary places in the stack
based on whenever the alarm happens to fire, they do not often group
together.

Explicitly group them together, grouped only by which queue the work
is in.
2020-10-27 16:39:31 -07:00
Anders Kaseorg 1352f2f233 python: Replace manual quote_plus usage with urlencode.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-27 13:47:02 -07:00
Anders Kaseorg 4e9d587535 python: Pass query parameters as a dict when making GET requests.
This provides automatic URL-encoding.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-27 13:47:02 -07:00
Anders Kaseorg 41f509170b users: Canonicalize the timezone identifier.
While working on shifting toward native browser time zone APIs
(#16451), it was found that all but very recent Chrome and Node
versions reject certain legacy timezone aliases like US/Pacific
(https://crbug.com/364374).

For now, we only canonicalize the timezone property returned in user
objects and not the timezone setting itself.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-27 13:42:54 -07:00
Anders Kaseorg a8b1691e97 timezone: Convert get_common_timezones cache to lru_cache.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-27 13:42:54 -07:00
Anders Kaseorg 0b288f92c9 timezone: Remove get_timezone wrapper.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-27 13:42:54 -07:00
Anders Kaseorg 0134112b51 timezone: Remove get_all_timezones wrapper.
Both callers want a set, and pytz already provides all_timezones_set.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-27 13:42:54 -07:00
Chris Bobbe 500f92169e openapi: Fix the "the the" instances. 2020-10-26 12:50:01 -07:00
Chris Bobbe dd43d4feb8 openapi: Note that a user's `avatar_url` may be missing.
Like it already says in the detail about
`user_avatar_url_field_optional`, but on the field itself [1].

[1] https://github.com/zulip/zulip-mobile/pull/4230#discussion_r493109645
2020-10-26 12:50:01 -07:00
Tim Abbott 6d7cd351a3 events: Optimize creating streams for new users.
During the new user creation code path, there can be no existing
active clients for the user being created, so we can skip the code to
send events to that user's clients.

The tests here reflect that we need to send fewer events, and do fewer
queries that would have been spent computing data for these..

Fixes #16503, combined with the long series of recent changes by Steve
Howell to fix super-linear behavior in this code path.
2020-10-26 12:47:15 -07:00
Steve Howell 88a7a1b002 events: Optimize peer_add/peer_remove for public streams.
We no bulk up peer_add/peer_remove events by user if the
same user has subscribed to multiple streams (and just
that single user).

This mostly optimizes the new-user codepath, but the
algorithm is a bit more general in nature.
2020-10-26 12:33:28 -07:00
Alex Vandiver 7cf737988d queue: Be more explicit about test/real queue division. 2020-10-26 12:32:47 -07:00
Anders Kaseorg 31d0141a30 python: Close opened files.
Fixes various instances of ‘ResourceWarning: unclosed file’ with
python -Wd.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-26 12:31:30 -07:00
Steve Howell 3ad1335a97 tests: Clear ContentType cache for user test.
This keeps the number of queries predictable.
2020-10-26 07:18:08 -04:00
Steve Howell 5ef01b3ad8 tests: Fix test_create_user_with_multiple_streams.
This test was flaky due to some date-related
non-determinism.  I make all the Message objects
current to make add_new_user_history reliably
try to bulk-update UserMessage rows to read.
2020-10-26 07:18:08 -04:00
Anders Kaseorg 96dee7e40b decorator: Unfork redirect_to_login.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-25 14:58:53 -07:00
sahil839 a96811ab58 management: Replace knight command with change_user_role command.
We replace knight command with change_user_role command which
allows us to change role of a user to owner, admins, member and
guest. We can also give/revoke api_super_user permission using
this command.

Tweaked by tabbott to improve the logging output and update documentation.

Fixes #16586.
2020-10-25 14:55:08 -07:00
Harsh Srivastava 9b31df009b openapi: Fix excessively large test_events failure output.
Because of the very large `oneOf` clause of the formats of events
possible in Zulip's `GET /events` system, we had issues with
`test-backend` failures for missing documentation for a new event
format being like 1000 lines of output, which was very much unhelpful.

Fix this by limiting the output use only the oneOf variants that are
broadly similar to the actual payload received.

Fixes #16023.
2020-10-23 17:00:17 -07:00
Anders Kaseorg 72d6ff3c3b docs: Fix more capitalization issues.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-23 11:46:55 -07:00
Anders Kaseorg e513b75e86 markdown: Remove handler for old bug with incompatible twitter library.
See commit 8b002040e0 and #86.  The
development environment bug that necessitated this handler has long
been irrelevant.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-23 11:30:26 -07:00
Anders Kaseorg b9fd49a2c6 mypy: Correct mistaken *args type annotations.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-23 11:29:13 -07:00
Anders Kaseorg d295da676b test_message_fetch: Clean up obsolete PGroonga bug workaround.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-22 23:27:23 -07:00
Anders Kaseorg 831d086110 i18n: Fix get_language_translation_data for zh_TW.
Fixes #16600.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-22 16:43:02 -07:00
sahil839 571bb62e3d events: Update subscriber list on peer_add for unsubscribed streams.
We update the subscriber list on peer_add event for unsubscribed
streams as well.
2020-10-22 15:12:32 -07:00
sahil839 733d26aef2 events: Update subscriber list on peer_remove for never subscribed stream.
We now update the subscriber list on peer_remove event for never
subscribed streams also.
2020-10-22 15:12:32 -07:00
sahil839 af9b153ee3 events: Update subscriber list on peer_remove for unsubscribed stream.
We update the subscriber list on peer_remove event for unsubscribed
streams also.
2020-10-22 15:12:32 -07:00
sahil839 709edd29d4 test_events: Fix comment in do_test_subscribe_events.
The comment still pointed to 'vacate' event flow, but
we have removed the vacate event in a9356508ca.
This commit fixes the comment to depict the correct
purpose of below lines, i.e. to test the remove
event flow.
2020-10-22 15:12:32 -07:00
sahil839 e578742b02 test_events: Remove 'realm_user' from event_types in subscription test.
We were including 'realm_user' in event_types along with 'subscription',
but we don't send event of type 'realm_user' when subscribing to a new
stream. This was added in 1c332f5d6a.

This commit removes 'realm_user' from event_types.
2020-10-22 15:12:32 -07:00
sahil839 d0f5537fb2 actions: Modify check_message for handling wildcard_mention_policy setting.
This commit adds enforcement for sending messages containing wildcard
mentions according to wildcard_mention_policy.
2020-10-22 14:46:32 -07:00
sahil839 25f32d461e tests: Add tests for all the values of wildcard_mention_policy. 2020-10-22 12:08:22 -07:00
Mateusz Mandera 48f80fcb0a auth: Expect name in request params in Apple auth.
The name used to be included in the id_token, but this seems to have
been changed by Apple and now it's sent in the `user` request param.

https://github.com/python-social-auth/social-core/pull/483 is the
upstream PR for this - but upstream is currently unmaintained, so we
have to monkey patch.

We also alter the tests to reflect this situation. Tests no longer put
the name in the id_token, but rather in the `user` request param in the
browser flow, just like it happens in reality.

An adaptation has to be made in the native flow - since the name won't
be included by Apple in the id_token anymore, the app, when POSTing
to the /complete/apple/ endpoint,
can (and should for better user experience)
add the `user` param formatted as json of
{"email": "hamlet@zulip.com", "name": {"firstName": "Full", "lastName": "Name"}}
dict. This is also reflected by the change in the
native flow tests.
2020-10-22 12:07:46 -07:00
Steve Howell 7ff3859136 subscriber events: Change schema for peer_add/peer_remove.
We now can send an implied matrix of user/stream tuples
for peer_add and peer_remove events.

The client code basically does this:

    for stream_id in event['stream_ids']:
        for user_id in event['user_ids']:
            update_sub(stream_id, user_id)

We used to send individual events, which gets real
expensive when you are creating new streams. For
the case of copy-to-stream case, we should see
events go from U to 1, where U is the number of users
added.

Note that we don't yet fully optimize the potential
of this schema.  For adding a new user with lots
of default streams, we still send S peer_add events.

And if you subscribe a bunch of users to a bunch of
private streams, we only go from U * S to S; we can't
optimize it down to one event easily.
2020-10-22 11:19:53 -07:00
Anders Kaseorg efa8dd3a47 compilemessages: Sort language list with Unicode Collation Algorithm.
Right now the list of languages in Display settings → Default language
is sorted in an unintuitive order due to the varying case conventions:

British English
Chinese (Taiwan)
Deutsch
English
Hindi
Indonesian (Indonesia)
Lietuviškai
Magyar
Malayalam
Nederlands
Português
Română
Tiếng Việt
Türkçe
català
español
français
galego
italiano
polski
suomi
svenska
česky
Русский
Українська
български
српски
فارسی
தமிழ்
日本語
简体中文
繁體中文
한국어

Fix the sort to use the locale-independent Unicode Collation
Algorithm:

British English
català
česky
Chinese (Taiwan)
Deutsch
English
español
français
galego
Hindi
Indonesian (Indonesia)
italiano
Lietuviškai
Magyar
Malayalam
Nederlands
polski
Português
Română
suomi
svenska
Tiếng Việt
Türkçe
български
Русский
српски
Українська
فارسی
தமிழ்
한국어
日本語
简体中文
繁體中文

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-21 15:22:18 -07:00
Steve Howell 85ed6f332a performance: Avoid Recipient lookup for stream messages.
All the fields of a stream's recipient object can
be inferred from the Stream, so we just make a local
object.  Django will create a Message object without
checking that the child Recipient object has been
saved.  If that behavior changes in some upgrade,
we should see some pretty obvious symptom, including
query counts changing.

Tweaked by tabbott to add a longer explanatory comment, and delete a
useless old comment.
2020-10-20 11:47:23 -07:00
Steve Howell 7bbcc2ac96 refactor: Compute peers for public streams later.
This saves us a query for edge cases like when
you try to unsubscribe from a public stream
that you have already unsubscribed from.

But this is mostly to prep for upcoming
optimizations.
2020-10-20 11:31:22 -07:00
Steve Howell 363e5d31a6 refactor: Split out public/private logic for peer events.
This doesn't change anything yet, but the goal is
to eventually optimize events for the case where
one user (typically a new user) gets subscribed
to multiple public streams.
2020-10-20 11:31:22 -07:00
Steve Howell 3961e69381 refactor: Extract send_peer_subscriber_events.
We now use the same basic code to send peer_add
and peer_remove events.
2020-10-20 11:31:22 -07:00
Anders Kaseorg 254b904965 markdown: Migrate off deprecated extension registration interface.
Fixes #15205.

https://python-markdown.github.io/change_log/release-3.0/#homegrown-ordereddict-has-been-replaced-with-a-purpose-built-registry
https://python-markdown.github.io/change_log/release-3.0/#md_globals-keyword-deprecated-from-extension-api

The priority numbers are arbitrarily chosen to preserve the existing
order.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-19 18:31:12 -07:00
akshatdalton 287c4ed2bb markdown: Fix Youtube and Vimeo preview overriding markdown link titles bug.
Initially markdown titles were overridden by Youtube and Vimeo preview titles.
But now it will check if any markdown title is present to replace Youtube or
Vimeo preview titles, if preview of linked websites is enabled.
Fixes #16100
2020-10-19 12:06:13 -07:00
Anders Kaseorg d81a93cdf3 requirements: Upgrade markdown to 3.3.1.
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>
2020-10-19 11:54:14 -07:00
Anders Kaseorg 2ab15149bc forms: Convert percent formatting to "".format.
Caught by upgrading Semgrep.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-19 11:54:14 -07:00
Anders Kaseorg f461a64a6b i18n: Fix some ineffective calls to ugettext at top level.
Translation has no effect when we don’t yet know what language we’re
translating for.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-18 14:31:15 -07:00
Anders Kaseorg bba43f35ca i18n: Be deliberate about distinguishing ugettext and ugettext_lazy.
The early str conversions in zerver.models were defeating the point of
ugettext_lazy.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-18 14:31:15 -07:00
Steve Howell e6f6f8d45f refactor: Avoid "stream_id" on sub.
There was no need to put "stream_id" on the sub
dictionary here.  It's kinda annoying to introduce
the little helper here, but I feel
that's better than crufting up the sub data
structure.
2020-10-18 14:27:31 -07:00
Steve Howell 628a826aa2 minor: Move code and add comments about three lists. 2020-10-18 14:27:31 -07:00
Steve Howell ffee129a35 refactor: Clean up is_web_public flag.
The is_web_public flag is already in Stream.API_FIELDS,
so there is no reason for all this complicated logic.

There's no reason to hack it on to the subscription
object.
2020-10-18 14:27:31 -07:00
Steve Howell 4dce34ab8b refactor: Simplify call to bulk_get_subscriber_user_ids.
The way we were computing the dictionary was very
convoluted--all we need is a set of subscribed user
ids.
2020-10-18 14:27:31 -07:00
Steve Howell b58152abda refactor: Introduce all_streams_map.
We replace all_streams_id with a map.

We also use it to populate never_subscribed_streams.

And all_streams_map is a superset of stream_hash,
which we will soon kill off as well.
2020-10-18 14:27:31 -07:00
Steve Howell 78384ebf1b minor: Remove confusing parens.
Apparently I put these parens in the code as
part of 73c30774cb
during 2017.

It looks like I extracted is_public during
the middle of my change and forgot to remove
the unnecessary parens.  (The code was correct,
but it makes it look like a tuple if you're
skimming it too quickly.)
2020-10-18 14:27:31 -07:00
Steve Howell d60dd94168 refactor: Extract funcs from gather_subscriptions_helper.
This is a pure code move, apart from a little bit
of quote cleanup and renames:

    user_profile -> user
    stream_dict -> result
2020-10-18 14:27:31 -07:00
Steve Howell 79fcf78143 refactor: Exclude "active" from API_FIELDS.
We just need to make sure the relevant queries
get it for the triage process.
2020-10-18 14:27:31 -07:00
Steve Howell c5769d31f2 minor: Move code for web_public_stream_ids. 2020-10-18 14:27:31 -07:00
Steve Howell 0ca07ffd3c peformance: Eliminate StreamRecipientMap.
That class is an artifact of when Stream
didn't have recipient_id.  Now it's simpler
to deal with stream subscriptions.

We also save a query during page load (and
other places where we get subscriber
info).
2020-10-18 14:27:31 -07:00
Steve Howell 1951d75796 performance: Avoid select_related("realm").
We also move this query up in the function
for some future refactorings.
2020-10-18 14:27:31 -07:00
Steve Howell 2f8ba383ef tests: Test overhead for creating new users. 2020-10-18 14:27:31 -07:00
Mateusz Mandera 716df658fa queue_processors: Don't run test queues with run-dev.py. 2020-10-18 14:07:31 -07:00
Steve Howell 57efe9d81a performance: Streamline list_to_streams.
We take advantage of stream.recipient to simplify
the query's where clause and avoid the need
for select_related("recipient").
2020-10-16 12:58:11 -07:00
Steve Howell e1bcf6124f refactor: Remove recipient from access_stream_by_name. 2020-10-16 12:58:11 -07:00
Steve Howell a51b483f1a performance: Remove recipient from access_stream_by_id.
The Recipient table is now kind of useless for
stream-related operations, since we have
recipient_id on Stream now.
2020-10-16 12:58:11 -07:00
Steve Howell 31622feb87 refactor: Only return sub from access_stream_common.
Let the callers access stream.recipient as needed.
It costs the same, and some of the callers can
actually stop caring about the actual Recipient
object.
2020-10-16 12:58:11 -07:00
Steve Howell bfd6e2b1fd refactor: Use recipient_id to get topic history. 2020-10-16 12:58:11 -07:00
Steve Howell 3685fcc701 refactor: Remove recipient arg for do_mute_topic. 2020-10-16 12:58:11 -07:00
Steve Howell 65dbee4837 minor: Ask for recipient_id, not recipient. 2020-10-16 12:58:11 -07:00
Steve Howell 378062cc83 performance: Avoid call to access_stream_by_id.
We already trust ids that are put on our queue
for deferred work. For example, see the code for
"mark_stream_messages_as_read_for_everyone"

We now pass stream_recipient_id when we queue
up work for do_mark_stream_messages_as_read.

This generally saves about 3 queries per
user when we unsubscribe them from a stream.
2020-10-16 12:58:11 -07:00
Steve Howell 2256d72015 minor: Add comment to subscriber test. 2020-10-16 12:58:11 -07:00
Steve Howell 31eb97ddde performance: Fix do_mark_stream_messages_as_read.
This function no longer asks for data that it
doesn't need.
2020-10-16 12:58:11 -07:00
Steve Howell 6d1f9de7d3 performance: Use SubInfo when removing subscribers.
We get two speedups:

    * The query to get existing subscribers only
      gets the two fields we need.  We no longer
      need all the overhead of user_profile
      and recipient data being returned in the
      query.

    * We avoid Django making extra hops to the
      database to get user info.
2020-10-16 12:58:11 -07:00
Steve Howell 73982f6cc9 refactor: Move SubInfo to stream_subscription.py. 2020-10-16 12:58:11 -07:00
Tim Abbott caa939d2d5 actions: Use transaction.atomic properly when removing subscriptions.
Previously, the transaction.atomic() was not properly scoped to ensure
that RealmAuditLog entries were created in the same transaction,
making it possible for state changes to not be properly recorded in
RealmAuditLog.
2020-10-15 15:12:05 -07:00
Steve Howell 0b91526f28 events: Remove "occupied" semantics for "streams".
When apps like mobile register for "streams", we
will now just use active streams as our baseline,
rather than "occupied" streams.

This means we will send a stream that is active,
even if it happens to have zero occupants.  It's
actually pretty rare that a stream has zero occupants,
and it's not exactly clear that we want to exclude
a non-occupied but otherwise active stream from
our list of streams.

It also happens to be fairly expensive to compute
whether a stream is occupied.

This change only affects API clients (including
possibly our mobile app).  The main webapp never
used the data from this codepath.
2020-10-15 15:12:01 -07:00
Steve Howell b4346d0276 performance: Extract subscribers/peers in bulk.
We replace get_peer_user_ids_for_stream_change
with two bulk functions to get peers and/or
subscribers.

Note that we have three codepaths that care about
peers:

    subscribing existing users:
        we need to tell peers about new subscribers
        we need to tell subscribed user about old subscribers

    unsubscribing existing users:
        we only need to tell peers who unsubscribed

    subscribing new user:
        we only need to tell peers about the new user
        (right now we generate send_event
        calls to tell the new user about existing
        subscribers, but this is a waste
        of effort that we will fix soon)

The two bulk functions are this:

    bulk_get_subscriber_peer_info
    bulk_get_peers

They have some overlap in the implementation,
but there are some nuanced differences that are
described in the comments.

Looking up peers/subscribers in bulk leads to some
nice optimizations.

We will save some memchached traffic if you are
subscribing to multiple public streams.

We will save a query in the remove-subscriber
case if you are only dealing with private streams.
2020-10-15 15:12:01 -07:00
Steve Howell 94e41c71f9 refactor: Use set of ids for altered users. 2020-10-15 15:12:01 -07:00
Steve Howell b894597fa3 refactor: Use sets of stream_ids for helper args. 2020-10-15 15:12:01 -07:00
Steve Howell 3889554977 refactor: Extract send_peer_remove_events. 2020-10-15 15:12:01 -07:00
Steve Howell c73f84f275 tests: Improve tests for unsubscribing multiple users.
Note that the tests now reflect that we have O(N)
behavior for multiple users.
2020-10-15 15:12:01 -07:00
Steve Howell f86823f82f tests: Add cache_tries_captured helper. 2020-10-15 15:12:01 -07:00
Steve Howell ce70d08cbf test_helpers: Use mock.patch.multiple. 2020-10-15 15:12:01 -07:00
Tim Abbott bf66e9c4ab actions: Add transaction.atomic to bulk_add_subs_to_db_with_logging.
This will ensure that we always fully execute the database part of
modifying subscription objects.  In particular, this should prevent
invariant failures like #16347 where Subscription objects were created
without corresponding RealmAuditLog entries.

Fixes #16347.
2020-10-14 11:06:00 -07:00
Steve Howell 5728149e94 performance: Streamline query to add subscribers.
We don't need the select_related('user_profile')
optimization any more, because we just keep
track of user info in our own data structures.

In this codepath we are never actually modifying
users; we just occasionally need their ids or
emails.

This can be a pretty substantive improvement if
you are adding a bunch of users to a stream
who each have a bunch of their own subscriptions.

We could also limit the number of full rows in this
query by adding an extra hop to the DB just to
get colors (using values_list), and then only get
full sub info for the streams that we're adding, rather
than getting every single subscription, in full, for each user.

Apart from finding what colors the user has already
used, the only other reason we need all the columns
in Subscription here is to handle streams that
need to be reactivated.  Otherwise we could do
only("id", "active", "recipient_id", "user_profile_id")
or similar.  Fortunately, Subscription isn't
an overly wide table; it's mostly bool fields.

But by far the biggest thing to avoid is bringing
in all the extra user_profile data.

We have pretty good coverage on query counts here,
so I think this fix is pretty low risk.
2020-10-14 11:03:07 -07:00
Steve Howell 116a441bc5 refactor: Introduce SubInfo class.
This class removes a lot of the annoying tuples
we were passing around.

Also, by including the user everywhere, which
is easily available to us when we make instances
of SubInfo, it sets the stage to remove
select_related('user_profile').
2020-10-14 10:53:10 -07:00
Steve Howell febef45e38 minor: Add comments to do_get_streams. 2020-10-14 10:53:10 -07:00
Steve Howell a9356508ca events: Stop sending occupy/vacate events.
We used to send occupy/vacate events when
either the first person entered a stream
or the last person exited.

It appears that our two main apps have never
looked at these events.  Instead, it's
generally the case that clients handle
events related to stream creation/deactivation
and subscribe/unsubscribe.

Note that we removed the apply_events code
related to these events.  This doesn't affect
the webapp, because the webapp doesn't care
about the "streams" field in do_events_register.

There is a theoretical situation where a
third party client could be the victim of
a race where the "streams" data includes
a stream where the last subscriber has left.
I suspect in most of those situations it
will be harmless, or possibly even helpful
to the extent that they'll learn about
streams that are in a "quasi" state where
they're activated but not occupied.

We could try to patch apply_event to
detect when subscriptions get added
or removed. Or we could just make the
"streams" piece of do_events_register
not care about occupy/vacate semantics.
I favor the latter, since it might
actually be what users what, and it will
also simplify the code and improve
performance.
2020-10-14 10:53:10 -07:00
Steve Howell 1bcb8d8ee8 performance: Avoid computing page_params.streams in webapp.
The query to get "occupied" streams has been expensive
in the past.  I'm not sure how much any recent attempts
to optimize that query have mitigated the issue, but
since we clearly aren't sending this data, there is no
reason to compute it.
2020-10-14 10:53:10 -07:00