Commit Graph

21 Commits

Author SHA1 Message Date
Anders Kaseorg 69c0959f34 python: Fix misuse of Optional types for optional parameters.
There seems to have been a confusion between two different uses of the
word “optional”:

• An optional parameter may be omitted and replaced with a default
  value.
• An Optional type has None as a possible value.

Sometimes an optional parameter has a default value of None, or None
is otherwise a meaningful value to provide, in which case it makes
sense for the optional parameter to have an Optional type.  But in
other cases, optional parameters should not have Optional type.  Fix
them.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-13 15:31:27 -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 6480deaf27 python: Convert more "".format to Python 3.6 f-strings.
Generated by pyupgrade --py36-plus --keep-percent-format, with more
restrictions patched out.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-10 14:48:09 -07:00
Anders Kaseorg 10805abd6e python: Fix errors from pycodestyle 2.6.0.
zerver/lib/i18n.py:34:28: E741 ambiguous variable name 'l'
zerver/lib/webhooks/common.py:103:34: E225 missing whitespace around operator
zerver/tests/test_queue_worker.py:563:9: E306 expected 1 blank line before a nested definition, found 0

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-03 17:23:20 -07:00
Anders Kaseorg f8c95cda51 mypy: Add specific codes to type: ignore annotations.
https://mypy.readthedocs.io/en/stable/error_codes.html

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-04-22 10:46:33 -07:00
Eeshan Garg 8e10ab282a webhooks: Log unexpected webhook events separately.
This change serves to declutter webhook-errors.log, which is
filled with too many UnexpectedWebhookEventType exceptions.

Keeping UnexpectedWebhookEventType in zerver/lib/webhooks/common.py
led to a cyclic import when we tried to import the exception in
zerver/decorators.py, so this commit also moves this exception to
another appropriate module. Note that our webhooks still import
this exception via zerver/lib/webhooks/common.py.
2019-07-22 18:20:53 -07:00
Hemanth V. Alluri ef52aa0fc1 webhooks: Eliminate the usage of a headers.py file.
For storing HTTP headers as a function of fixture name, previously
we required that the fixture_to_headers method should reside in a
separate module called headers.py.

However, as in many cases, this method will only take a few lines,
we decided to move this function into the view.py file of the
integration instead of requiring a whole new file called headers.py

This commit introduces the small change in the system architecture,
migrates the GitHub integration, and updates the docs accordingly.
2019-06-26 10:35:14 -07:00
Hemanth V. Alluri 4691028097 webhooks: Extract the '__' method of mapping to headers.
In the GitHub integration we established that for many integrations,
we can directly map the fixture filename to the set of required
headers and by following a simple naming convention we can greatly
ease the logic involved in fixture_to_headers method required .

So to prevent the need for duplicating the logic used by the GitHub
integration, we created a method called `get_http_headers_from_filename`
which will take the name of the HTTP header (key) and then return a
corresponding method (in a decorator-like fashion) which could then be
equated to fixture_to_headers in headers.py.

The GitHub integration was modified to use this method and the docs
were updated to suggest using this when possible.
2019-06-26 10:32:34 -07:00
Hemanth V. Alluri e2549b3b84 webhooks: Replace headers parsing logic with a common source.
When parsing custom HTTP headers in the integrations dev panel, http
headers from fixtures system and the send_webhook_fixture_message
we now use a singular source of logic: standardize_headers which
will take care of converting a dictionary of input headers into a
standard form that Django expects.
2019-06-24 13:23:21 -07:00
Hemanth V. Alluri 7c145c3f68 webhooks: Add a system for storing http headers for integrations.
Using this system, we can now associate any fixture of any integration
with a particular set of HTTP headers. A helper method called
determine_http_headers was introduced, and the test suite was upgraded
to use determine_http_headers.

Comments and documentation significantly edited by tabbott.
2019-06-20 16:36:38 -07:00
Anders Kaseorg f0ecb93515 zerver core: Remove unused imports.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
2019-02-02 17:41:24 -08:00
Eeshan Garg f9ee393e4f webhooks/common: Allow suppressing exceptions for missing headers.
This is useful in cases where an event type HTTP header isn't
crucial for inferring the payload's type.
2019-02-01 21:19:26 -03:30
Eeshan Garg 901100bebf webhooks/jira: Decode topics on our end.
The problem addressed in 006e47198c
resurfaces with topics when a user provides a custom topic in the
webhook URL.
2018-12-03 17:37:36 -08:00
Eeshan Garg d9958610a4 webhook_decorator: Support notifying bot owner on invalid JSON.
Our webhook-errors.log file is riddled with exceptions that are
logged when a webhook is incorrectly configured to send data in
a non-JSON format. To avoid this, api_key_only_webhook_view
now supports an additional argument, notify_bot_owner_on_invalid_json.
This argument, when True, will send a PM notification to the bot's
owner notifying them of the configuration issue.
2018-11-14 22:35:56 -08:00
Eeshan Garg 006e47198c webhooks/jira: Decode stream name on our end.
Recently, one of our users reported that a JIRA webhook was not
able to send messages to a stream with a space character in its
name. Turns out that JIRA does something weird with webhook URLs,
such that escaped space characters (%20) are escaped again, so
that when the request gets to Zulip, the double escaped %20 is
evaluated as the literal characters `%20`, and not as a space.

We fix this by unescaping the stream name on our end before
sending the message forward!
2018-11-06 15:57:04 -08:00
Eeshan Garg 3ed20589f2 webhooks: Add generic exception for unexpected webhook events.
UnexpectedWebhookEventType is a generic exception that we may
now raise when we encounter a webhook event that is new or one
that we simply aren't aware of.
2018-05-22 08:30:19 -07:00
Aditya Bansal a68376e2ba zerver/lib: Change use of typing.Text to str. 2018-05-12 15:22:39 -07:00
Eeshan Garg 34d1b0ebf1 webhooks: Add helper to extract and validate HTTP event headers.
This is a part of our efforts to close #6213.
2018-05-05 15:48:37 -07:00
Eeshan Garg 538746fc65 webhooks: Stop raising an exception if stream does not exist.
webhook-errors.log file is cluttered with Stream.DoesNotExist
errors, which hides the errors that we actually need to see. So,
since check_message already sends the bot_owner a PM if the webhook
bot tries to send a message to a non-existent stream, we can ignore
such exceptions.
2018-03-24 13:50:17 -07:00
Eeshan Garg af56df7723 webhooks: Enable custom topics and default PM notifications.
This commit adds a generic function called check_send_webhook_message
that does the following:
* If a stream is specified in the webhook URL, it sends a stream
  message, otherwise sends a PM to the owner of the bot.
* In the case of a stream message, if a custom topic is specified
  in the webhook URL, it uses that topic as the subject of the
  stream message.

Also, note that we need not test this anywhere except for the
helloworld webhook. Since helloworld is our default example for
webhooks, it is here to stay and it made sense that tests for a
generic function such as check_send_webhook_message be tested
with an actual generic webhook!

Fixes #8607.
2018-03-16 11:34:20 -07:00