Commit Graph

123 Commits

Author SHA1 Message Date
Anders Kaseorg a50eb2e809 mypy: Enable new error explicit-override.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-10-12 12:28:41 -07:00
Alex Vandiver ffaccb8af2 outgoing_webhook: Respect settings.OUTGOING_WEBHOOK_TIMEOUT_SECONDS.
The use of the setting was accidentally removed in b88d7a741e, and
replaced with a static 10 seconds.
2023-05-16 07:00:37 -07:00
Lauryn Menard 42d9560413 message: Use `recipient_type_name` for API message type references.
Refactors instances of `message_type_name` and `message_type`
that are referring to API message type value ("stream" or
"private") to use `recipient_type_name` instead.

Prep commit for adding "direct" as a value for endpoints with a
`type` parameter to indicate whether the message is a stream or
direct  message.
2023-04-18 12:29:33 -07:00
Lauryn Menard 017b05fd84 outgoing-webhook: Update Slack outgoing webhook error for private messages.
Updates the error message for the outgoing Slack webhook to use
"direct message" instead of "private message".
2023-02-24 11:47:26 -08:00
Anders Kaseorg df001db1a9 black: Reformat with Black 23.
Black 23 enforces some slightly more specific rules about empty line
counts and redundant parenthesis removal, but the result is still
compatible with Black 22.

(This does not actually upgrade our Python environment to Black 23
yet.)

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-02-02 10:40:13 -08:00
Anders Kaseorg ff1971f5ad ruff: Fix SIM105 Use `contextlib.suppress` instead of try-except-pass.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2023-01-23 11:18:36 -08:00
Alex Vandiver d8ebbedbbb outgoing_webhook: Ignore the exception on failure if the stream is gone.
In the outgoing webhook handler, there is potentially several seconds
of trying between when a message triggering an outgoing webhook
arrives, and when it fails.  In the meantime, the stream the
triggering message was on may have been deleted, causing the
"Failure!" message to have no valid stream to be sent to.

Rather than raise an exception in the outgoing webhook worker, ignore
the exception and move on.
2022-11-04 14:46:17 -07:00
Anders Kaseorg 975066e3f0 actions: Split out zerver.actions.message_send.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2022-04-14 17:14:34 -07:00
Tim Abbott 417c32629d outgoing webhooks: Fix inconsistencies with Slack's API.
Apparently, our slack compatible outgoing webhook format didn't
exactly match Slack, especially in the types used for values.  Fix
this by using a much more consistent format, where we preserve their
pattern of prefixing IDs with letters.

This fixes a bug where Zulip's team_id could be the empty string,
which tripped up using GitLab's slash commands with Zulip.

Fixes #19588.
2021-09-23 11:19:20 -07:00
Anders Kaseorg fb3ddf50d4 python: Fix mypy no_implicit_reexport errors.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-07-16 14:02:31 -07:00
Mateusz Mandera de6bd22ee9 outgoing_webhook: Treat "" json in response as response_not_required.
b7b1ec0aeb made our checks of the response
format stronger, to enforce that the json translates to a valid dict.
However, old client code (zulip_botserver) was using "" as equivalent to
response_not_required - so we need to keep backward-compatibility to not
break things built on it.
2021-05-13 08:07:38 -07:00
Mateusz Mandera c95cac2dd7 outgoing_webhook: Send response payload to bot owner if it was invalid.
When the format of the response received from the outgoing webhook
server is invalid (unparsable json, or just wrong format that doesn't
translate into a dictionary etc.), a message with the error is sent to
the bot owner. We should include the actual payload to make reasonable
debugging possible.

In notify_bot_owner we have to move the `if response_content` block to
append the payload to the message whenever it was specified as an
argument to the function. It shouldn't be nested inside
`elif status_code` as before.
2021-05-11 14:27:00 -07:00
Alex Vandiver 8df82f50e4 outgoing_http: Provide a convenient way to set default headers. 2021-05-07 08:39:36 -07:00
Alex Vandiver 6339e7fd47 outgoing_http: Put the X-Smokescreen-Role in the proxy headers. 2021-05-07 08:39:36 -07:00
Alex Vandiver b88d7a741e outgoing_http: Factor out outgoing HTTP session with timeout. 2021-05-07 08:39:36 -07:00
Alex Vandiver 2dc6df33ae tests: Switch outgoing_webhook_system to use responses. 2021-05-07 08:39:36 -07:00
Alex Vandiver af26849554 outgoing_webhook: Set a default timeout of 10s.
Support for the timeouts, and tests for them, was added in
53a8b2ac87 -- though no code could have set them after 31597cf33e.

Add a 10-second default timeout.  Observationally, p99 is just about
5s, with everything else being previously being destined to meet the
30s worker timeout; 10s provides a sizable buffer between them.

Fixes #17742.
2021-05-07 08:39:36 -07:00
Alex Vandiver 8711ab7676 outgoing_webhook: Add a logging statement for each outgoing webhook.
This will help determine potentail timeout lengths, as well as serve
as a generally-useful log for locations which do not have Smokescreen
enabled.

In service of #17742.
2021-04-29 12:37:14 -07:00
Mateusz Mandera b7b1ec0aeb outgoing_webhook: Improve invalid json handling when parsing response.
It's better to just raise JsonableError here, as that makes this error
processed in the central place for this kind of thing in do_rest_call:
---------
except JsonableError as e:
    response_message = e.msg
    logging.info("Outhook trigger failed:", stack_info=True)
    fail_with_message(event, response_message)
    response_message = f"The outgoing webhook server attempted to send a message in Zulip, but that request resulted in the following error:\n> {e}"
    notify_bot_owner(event, failure_message=response_message)
    return None
----------

which does all the things that are supposed to happen -
fail_with_message, appropriate logging and notifying the bot owner.
2021-04-26 09:32:35 -07:00
Mateusz Mandera b998138d3a outgoing_webhook: Handle valid, but unexpected json in response.
Responses such as "null" or "true" are valid json, but json.loads
returns different objects than dicts that the codepath expects.

Fixes #18223.
2021-04-26 09:32:35 -07:00
Anders Kaseorg e7ed907cf6 python: Convert deprecated Django ugettext alias to gettext.
django.utils.translation.ugettext is a deprecated alias of
django.utils.translation.gettext as of Django 3.0, and will be removed
in Django 4.0.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-04-15 18:01:34 -07:00
Mateusz Mandera 4235be759d CVE-2021-30477: Prevent outgoing webhook bots from sending arbitrary messages to any stream.
A bug in the implementation of replies to messages sent by outgoing
webhooks to private streams meant that an outgoing webhook bot could be
used to send messages to private streams that the user was not intended
to be able to send messages to.

Completely skipping stream access check in check_message whenever the
sender is an outgoing webhook bot is insecure, as it might allow someone
with access to the bot's API key to send arbitrary messages to all
streams in the organization. The check is only meant to be bypassed in
send_response_message, where the stream message is only being sent
because someone mentioned the bot in that stream (and thus the bot
posting there is the desired outcome). We get much better control over
what's going by passing an explicit argument to check_message when
skipping the access check is desirable.
2021-04-14 12:37:34 -07:00
PIG208 c6dfe7bf40 api: Add bot name to outgoing webhook payload.
Fixes: #12282
2021-04-06 17:37:50 -07:00
Sundar Guntnur 5aefb5e656 webhook: Catch potential JsonableError when parsing widget_content.
The `widget_content` key is expected to contain a string which parses
as JSON; in the event that it does not, log the error and notify the
bot owner, instead of failing silently.

Fixes #16850.
2021-03-31 13:31:42 -07:00
Alex Vandiver 134db206a9 outgoing_webhook: Set an X-Smokescreen-Role on requests.
This header is used by the Smokescreen outgoing proxy to provide
identification.
2021-03-29 18:24:44 -07:00
Alex Vandiver bd37dc0b83 outgoing_webhook: Set the user-agent on all requests. 2021-03-29 18:24:44 -07:00
Alex Vandiver cb3e6df8b9 outgoing_webhook: Add a requests session on the webhook.
The session object provides a common place to set headers on all
requests, no matter which implementation.

Because the `headers` attribute of Session is not a true static
attribute, but rather exposed via overriding `__getstate__`, `mock`'s
autospec cannot know about it, and thus throws an error; in tests that
mock the Session, we thus must explicitly set the `session.headers`.
2021-03-29 18:24:44 -07:00
Alex Vandiver be100154dd outgoing_webhook: Type do_rest_call with fewer Anys. 2021-03-29 18:24:44 -07:00
Alex Vandiver a280905a89 outgoing_webhook: Join build_bot_request and send_data_to_server.
The existing organization, of returning an opaque blob from
`build_bot_request`, which was later consumed by
`send_data_to_server`, is not particularly sensible; the steps become
oddly split between the OutgoingWebhookWorker, `do_rest_call`, and the
`OutgoingWebhookServiceInterface`.

Make the `OutgoingWebhookServiceInterface` in charge of building,
making, and returning the request in one method; another method
handles extracting content from a successful response.  `do_rest_call`
is responsible for calling both halves of this, and doing common error
handling.
2021-03-29 18:24:44 -07:00
Alex Vandiver d88e6fe3fa outgoing_webhook: Use json= to automatically set content-type. 2021-03-29 18:24:44 -07:00
Tim Abbott 88f351cdee outgoing_webhook: Simplify error handling logic.
Structurally, exception, failure_message, and status_code are mutually
exclusive in how this function is called, and it's best for the
function's flow to represent that.
2021-03-18 14:41:34 -07:00
Siddharth Asthana ec28a7555c outgoing_webhook: modify outgoing_webhook's 407 error message.
The message from the bot which triggered the 407 error message notifies
the bot owner about the exceptions as well in the error message. This
commit handles it more gracefully and shows a generic message.
2021-03-18 14:39:26 -07:00
Siddharth Asthana 5ec0860a2f outgoing_webhook: Add bot name when a outgoing_webhook is triggered.
The messages from the bot which were triggered by the outgoing_webhooks
didn't have the bot name in them. This commit adds the bot name to it
and makes the corresponding changes in the tests.
2021-03-18 14:39:26 -07:00
Anders Kaseorg 6e4c3e41dc python: Normalize quotes with Black.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-02-12 13:11:19 -08:00
Anders Kaseorg 11741543da python: Reformat with Black, except quotes.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-02-12 13:11:19 -08:00
Anders Kaseorg 5028c081cb python: Merge concatenated string literals that Black would uglify.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-02-12 13:11:19 -08:00
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 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
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
Anders Kaseorg d0f4af5f8c python: Catch JSONDecodeError instead of ValueError when decoding JSON.
These weren’t wrong since orjson.JSONDecodeError subclasses
json.JSONDecodeError which subclasses ValueError, but the more
specific ones express the intention more clearly.

(ujson raised ValueError directly, as did json in Python 2.)

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-08-12 11:59:59 -07:00
Anders Kaseorg 768f9f93cd docs: Capitalize Markdown consistently.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-08-11 10:23:06 -07:00
Alex Vandiver 2928bbc8bd logging: Report stack_info on logging.exception calls.
The exception trace only goes from where the exception was thrown up
to where the `logging.exception` call is; any context as to where
_that_ was called from is lost, unless `stack_info` is passed as well.
Having the stack is particularly useful for Sentry exceptions, which
gain the full stack trace.

Add `stack_info=True` on all `logging.exception` calls with a
non-trivial stack; we omit `wsgi.py`.  Adjusts tests to match.
2020-08-11 10:16:54 -07:00
Anders Kaseorg d64f036247 outgoing_webhook: Fix strict_optional errors.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-06 11:25:48 -07:00
Anders Kaseorg 96cf928d27 models: Fix user_profile_id type.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-30 18:58:23 -07:00
Anders Kaseorg 5dc9b55c43 python: Manually convert more percent-formatting to f-strings.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-14 23:27:22 -07:00
Anders Kaseorg 74c17bf94a python: Convert more percent formatting to Python 3.6 f-strings.
Generated by pyupgrade --py36-plus.

Now including %d, %i, %u, and multi-line strings.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-14 23:27:22 -07:00
Anders Kaseorg 1ed2d9b4a0 logging: Use logging.exception and exc_info for unexpected exceptions.
logging.exception() and logging.debug(exc_info=True),
etc. automatically include a traceback.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-14 23:27:22 -07:00
Anders Kaseorg 365fe0b3d5 python: Sort imports with isort.
Fixes #2665.

Regenerated by tabbott with `lint --fix` after a rebase and change in
parameters.

Note from tabbott: In a few cases, this converts technical debt in the
form of unsorted imports into different technical debt in the form of
our largest files having very long, ugly import sequences at the
start.  I expect this change will increase pressure for us to split
those files, which isn't a bad thing.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-11 16:45:32 -07:00
Anders Kaseorg 69730a78cc python: Use trailing commas consistently.
Automatically generated by the following script, based on the output
of lint with flake8-comma:

import re
import sys

last_filename = None
last_row = None
lines = []

for msg in sys.stdin:
    m = re.match(
        r"\x1b\[35mflake8    \|\x1b\[0m \x1b\[1;31m(.+):(\d+):(\d+): (\w+)", msg
    )
    if m:
        filename, row_str, col_str, err = m.groups()
        row, col = int(row_str), int(col_str)

        if filename == last_filename:
            assert last_row != row
        else:
            if last_filename is not None:
                with open(last_filename, "w") as f:
                    f.writelines(lines)

            with open(filename) as f:
                lines = f.readlines()
            last_filename = filename
        last_row = row

        line = lines[row - 1]
        if err in ["C812", "C815"]:
            lines[row - 1] = line[: col - 1] + "," + line[col - 1 :]
        elif err in ["C819"]:
            assert line[col - 2] == ","
            lines[row - 1] = line[: col - 2] + line[col - 1 :].lstrip(" ")

if last_filename is not None:
    with open(last_filename, "w") as f:
        f.writelines(lines)

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-06-11 16:04:12 -07:00
Anders Kaseorg 67e7a3631d python: Convert percent formatting to Python 3.6 f-strings.
Generated by pyupgrade --py36-plus.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-10 15:02:09 -07:00