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.
The "subdomain" label is redundant, to the extent it's even
accurate -- this is really just the URL we want to display,
which may or may not involve a subdomain. Similarly "external".
The former `external_api_path_subdomain` was never a path -- it's a
host, followed by a path, which together form a scheme-relative URL.
I'm not quite convinced that value is actually the right thing in
2 of the 3 places we use it, but fixing that can start by giving an
accurate name to the thing we have.
This commit migrates all webhooks to use check_send_stream_message
instead of check_send_message. The only two webhooks that still
use check_send_message are our yo and teamcity webhooks. They
both use check_send_message for private messages.
Previously, api_key_only_webhook_view passed 3 positional arguments
(request, user_profile, and client) into a function. However, most
of our other auth decorators only pass 2 positional arguments. For
the sake of consistency, we now make api_key_only_webhook_view set
request.client and pass only request and user_profile as positional
arguments.
All webhook fixtures in zerver/fixtures/<webhook_name> have now
been moved to dedicated webhook-specific directories under
zerver/webhooks/<webhook_name>/fixtures, where <webhook_name> is
the name of the webhook.