Most of this is just asserting that the sub_dict return value from
access_stream_by_id is not None in the cases where it shouldn't be,
but additionally, we also need to pass a function into
validate_user_access_to_subscribers_helper (in this case, just `lambda:
True` works fine)
While maybe these don't all belong in this test file, the overall
effect is that we now have quite good test coverage on
analytics/views.py.
It'd be nice to add some more assert statements for specific values
being present in the pages, but since we're not really working on that
part of the product, it's not a priority yet.
Refactor custom fields creation and deletion tests to assert
if created/deleted field exist or not, instead of asserting
total count of all realm fields.
- do_change_is_admin now raises AssertionError when a non-admin
permission is given.
- adds test to test_users to ensure admin asserts on invalid
permission values.
This system was written years ago and has been working well the whole
time, but having unit tests for it will help future developers in
understanding what the intent is.
This is primarily useful for the mobile app, but could also be used to
control whether we display push-notifications related settings to
users in the web UI.
We send add events on upload, update events when sending a message
referencing it, and delete updates on removal.
This should make it possible to do real-time sync for the attachments
UI.
Based in part on work by Aastha Gupta.
We only use this data in a rarely-used settings screen, and it can be
large after years of posting screenshots.
So optimize the performance of / by just loading these data when we
actually visit the page.
This saves about 300ms of runtime for loading the home view for my
user account on chat.zulip.org.
This eliminates the need to call user_ids_to_users inside the
get_service_dicts_for_bots code path, saving a database query.
This completes my refactor to fix backend performance issues in this
code path. Previously, our messy layering of queries that resulted in
Zulip doing work even if none of the bots actually had Services or
config_data.
These decorators will be part of the process for disabling access to
various features for guest users.
Adding this decorator to the subscribe endpoint breaks the guest users
test we'd just added for the subscribe code path; we address this by
adding a more base-level test on filter_stream_authorization.
This is helpful for cases where an argument is supposed to be a normal
string, and we want to use a Zulip validator function to do basic
things like check its length.
We were rejecting strings of length equal to the max.
While we're at it, fix the unnecessary period in the error message,
which doesn't align with similar validators.
This commit changes the tests based on the fact that pygments.css
will no longer be found in the template during testing. pygemnts.css
is being compiled by webpack under app-styles and so we look for the
stubentry for app-styles instead.
Tweaked by tabbott to do a cleaner test.
This removes a check on invite_only, that should have been a check on
history_public_to_subscribers. In addition to fixing a bug for zephyr
realms, it also makes "more topics" work correctly for realms using
the new settings for stream history being public to subscribers.
This is a general code cleanlyness improvement.
While we're at it, we combine together two test classes that didn't
have a particularly good reason for existing.
This commit adds a new field history_public_to_subscribers to the
Stream model, which serves a similar function to the old
settings.PRIVATE_STREAM_HISTORY_FOR_SUBSCRIBERS; we still use that
setting as the default value for new streams to avoid breaking
backwards-compatibility for those users before we are ready with an
actual UI for users to choose directly.
This also comes with a migration to set the value of the new field for
existing streams with an algorithm matching that used at runtime.
With significant changes by Tim Abbott.
This is an initial part of our efforts on #9232.
The handlebars error message is just for the manual development
environment; this prevents the state of compiling handlebars templates
from run-dev.py from potentially causing the unit tests to fail.
The removed code path was only needed due to buggy setup code in the
test_cross_realm_scenarios test. We address that with a less buggy
workaround, and which lets us remove unnecessary complexity from this
important validation function.
Thanks for Umair Waheed for some preliminary work on this.
Fixes#7561.
Add realm setting to set time limit for message deleitng.
Set default value of message_content_delete_limit_seconds
to 600 seconds(10 min).
Thanks to Shubham Dhama for rebasing and reworking this. Some final
edits also done by Tim Abbott.
Fixes#7344.
This verifies an important case. We still have an open bug for why in
some production environments, the email_gateway_bot seems to not be
tagged as an API super user (resulting in this code path not working).
This exception class was clearly missing the part where `role` gets
stored, which was intended to be inherited from
InvalidZulipServerError.
This fixes an unnecessary 500 error in the push notifications bouncer.
Tweaked by tabbott to add a test and fix a super subtle issue with the
relative_settings_link variable having been set once the first time a
/help article was rendered.
A common path is a new user goes to realm_uri, which redirects to
realm_uri/login, and clicks the google auth button thinking it is a
registration button.
This commit just changes the wording on the page they land on to be
friendlier for that use case.
This completes the effort to ensure that all of our webhooks that do
parsing of the third-party message format log something that we can
use to debug cases where we're not parsing the payloads correctly.
The main change here is to send a proper confirmation link to the
frontend in the `confirm_continue_registration` code path even if the
user didn't request signup, so that we don't need to re-authenticate
the user's control over their email address in that flow.
This also lets us delete some now-unnecessary code: The
`invalid_email` case is now handled by HomepageForm.is_valid(), which
has nice error handling, so we no longer need logic in the context
computation or template for `confirm_continue_registration` for the
corner case where the user somehow has an invalid email address
authenticated.
We split one GitHub auth backend test to now cover both corner cases
(invalid email for realm, and valid email for realm), and rewrite the
Google auth test for this code path as well.
Fixes#5895.
This test class is basically a poor version of the end-to-end tests
that we have in `test_auth_backends.py`, and didn't really add any
value other than making it difficult to refactor.
By moving all of the logic related to the is_signup flag into
maybe_send_to_registration, we make the login_or_register_remote_user
function quite clean and readable.
The next step is to make maybe_send_to_registration less of a
disaster.
The code in maybe_send_to_registration incorrectly used the
`get_realm_from_request` function to fetch the subdomain. This usage
was incorrect in a way that should have been irrelevant, because that
function only differs if there's a logged-in user, and in this code
path, a user is never logged in (it's the code path for logged-out
users trying to sign up).
This this bug could confuse unit tests that might run with a logged-in
client session. This made it possible for several of our GitHub auth
tests to have a totally invalid subdomain value (the root domain).
Fixing that bug in the tests, in turn, let us delete a code path in
the GitHub auth backend logic in `backends.py` that is impossible in
production, and had just been left around for these broken tests.
This code path has actually been dead for a while (since
`invalid_subdomain` gets set to True only when `user_profile` is
`None`). We might want to re-introduce it later, but for now, we
eliminate it and the artificial test that provided it with test
coverage.
This commit sends the event for renaming of a private stream to
organization admins of the realm, in addition to the obvious list of
subscribers of the private stream.
Normally, admins can manage a private stream (e.g. unsubscribing a
user). But when the admin tried to unsubscribes a user from a
previously renamed stream, we previously were throwing a JS error, as
the webapp hadn't been notified about the new stream name.
Fixes#9034.
This was stored as a fixture file under zerver/fixtures, which caused
problems, since we don't show that directory under production (as its
part of the test system).
The simplest emergency fix here would be to just move the file, but
when looking at it, it's clear that we don't need or want a fixture
file here; we want a Python object, so we just do that.
A valuable follow-up improvement to this block would be to create an
actual new Realm object (not saved to the database), and dump it the
same code we use in the export tool; that should handle the vast
majority of these correctly.
Fixes#9123.
We should still short-circuit the iteration in
`add_missing_messages` if the unsubscription was the last
thing to happen to the user before unsubscription and
soft deactivation.
This extends the /user_uploads API endpoint to support passing the
authentication credentials via the URL, not the HTTP_AUTHORIZATION
headers. This is an important workaround for the fact that React
Native's Webview system doesn't support setting HTTP_AUTHORIZATION;
the app will be responsible for rewriting URLs for uploaded files
directly to add this parameter.
This commit increases the rendered_content limit from 2x to 10x of the
original message length.
Earlier, we had placed a limit of MAX_MESSAGE_LENGTH * 2 for the
rendered content (explained in commit
77addc5456). That limit was based on
the assumption that in most cases, the rendered content wouldn't cause
a large increase in message length. However, quite prominently in
syntax highlighted codeblocks, that wasn't true and this caused the
limit condition to be hit for long messages composed primarily of code
blocks.
Example: The following message would render close to 10x it's original size.
```py
if:
def:
print("x", var)
x = y
```
Because the syntax highlighted logic is extremely compressible, having
rendered_content reach up to 100KB doesn't create a network
performance problem.
This is a mobile-specific endpoint used for logging into a dev server.
On mobile without this realm_uri it's impossible to send a login request
to the corresponding realm on the dev server and proceed further; we can
only guess, which doesn't work for using multiple realms.
Also rename the endpoint to reflect the additional data.
Testing Plan:
Sent a request to the endpoint, and inspected the result.
[greg: renamed function to match, squashed renames with data change,
and adjusted commit message.]
After some thinking, I don't think there's any actual value to doing
the ../ style relative links here, whereas there is actual harm from
the links being slightly broken in the current model. We fix this by
just using /#settings as the URL.
Fixes#8978.
For certain queries where both include_history and
use_first_unread_anchor are set to True, we were excluding
historical rows. Now we only use the use_first_unread_anchor
flag to filter rows that we use to find the anchor, without
having it filter the actual search results.
The bug went unreported for a long time, because it only
affected mobile users who had newly subscribed to streams.
Note that we make a small change to the test called
test_use_first_unread_anchor_with_muted_topics, which has
a very scary comment about being "arcane" and "be
absolutely sure you know what you're doing." I think it's
fine.
Also, the new test code would fail before this fix, so it
should help prevent future regressions.
Fixes#8958
This is a bit more than a pure refactor, because we duplicate a
chunk of code to calculate a query inside of
find_first_unread_anchor(), so we're doing a bit more work
than before.
We need this refactoring to start decoupling find_first_unread_anchor
from get_messages_backend for the case where include_history is
True. This will happen in a subsequent commit.
The only test that changes here is a direct test on
find_first_unread_anchor(). All other tests pass without
modification, and we have decent coverage on get_messages_backend.
Refactoring in this file had resulted in the logic for
html_settings_link being duplicated and extra logic being needed to
ensure these variables were set where they were needed.
This fixes subscriptions_html not being rendered properly in the /help
and /api pages, in addition to removing duplicate code.
We don't indend for this server-level setting to exist in the long
term; the purpose of this is just to make it easy to test this code
path for development purposes.
This implements much of the Message side part of #2745.
Implement few optimizations for reading admin's bot dicts from database
for a constants number of requests:
- add models.get_user_profiles_by_ids() for reading bots profiles
by single query from database
- add models.get_services_for_bots() for reading services for bots
by single query from database
- add bot_config.get_bot_configs() for reading config data for bots
by single query from database
Fixes#8838
This fixes a bug where the endpoint for editing bot users would allow
an organization administrator to edit the full name of a bot user.
A combination of this an another recently fixed bug made it possible
for this process to set a `bot_owner` for a non-bot user; so we also
include a migration to fix that for any users that might have had our
model invariants corrupted in that way.
Change 'get_user_data' function to a more general function
to get data from the slack api using legacy tokens.
Also, change the error handling as upon invalid token,
the response is 200, but the response has an error
field in it.
For eg. Go to the following link with invalid token:
https://slack.com/api/emoji.list?token=xoxp-249056023425
Remove allocation ID function from slack import script. All the IDs
count will start from 0. Hence the ID List returned
by the allocation function is of no use, and we remove its implementation.
(example: get_total_messages_and_attachments function is of no use anymore,
hence we remove it)
In importing avatars, we use the implementation where the 'avatar_path'
is seperately calculated using realm and user ID and then the content
of the path provided in the avatar's 'records.json' are copied to this
'avatar_path'.
Similary, here for the uploads, 's3_file_name' is seperately calculated
using the realm ID and uploaded file name and then the content of the
path provided in upload's 'records.json' are copied to this 's3_file_name'.
Fixes#8853.
In certain cases, the browser is not able to look up the message.
Include the recipient data for the message in the delete_message event,
so look up of those attributes by the browser isn't required.
This bot was basically a duplicate of NOTIFICATION_BOT for some
specific corner cases, and didn't add much value. It's better to just
eliminate it, which also removes some ugly corner cases around what
happens if the user account doesn't exist.
Usually, to debug a small change, you have to remove some tests from JSON
because of lack of support for comments in JSON. This commit allows to
ignore some tests by setting `"ignore" : true` in the bugdown fixtures.
Also, since this is only for while developing, the complete test suite will
throw an error if we leave an 'ignored' test in a commit.
This is basically a simple fix, where we consistently set
`flags` to an empty array when we pass it around. The history
here is that we had kind of a nasty bug from setting it to
`None`, which only showed up in the somewhat obscure circumstance
of somebody subscribing to all stream events in our API.
Fixes#7921
Also switches the default behaviour of the code to not translate the
emoticons. Earlier, the code was testing-aware, and used to translate
when there was no user profile data available(assuming that as a testing
environment).
This number is way too high, because of a recent regression. Adding a
test here lets us prevent similar regressions in the future and
provides an easy way to be sure if we've fixed the issue.
In 18e43895ff we replaced
stream subscribe buttons with stream links. The new feature
has been well tested and well received for over a year now,
so it's safe to remove the older feature at this point.
Older sites will have super old messages that still have the
rendered markup; this commit does not attempt to address those
situations. Most likely, clicking on an old button in the old
message will either do nothing or look like a message reply.
This cuts out about 11 calls to `git describe`. In a nice fast LXC
container following our instructions for development on a Linux host,
this might save "only" about 1.5s; in a dev environment on a Windows
host, the savings have been clocked at 49s, presumably due to an
extremely slow filesystem in the VM.
The tests weren't doing much with this codepath as they were, and
there isn't a lot of value to be gained by testing it anyway; it's
totally non-critical and rarely changes.
[Commit message rewritten by greg.]
Add function in user-groups.py for getting member ids
for a group.
Update view to enforce checks for modifying user-groups.
Only admins and user group members can modify user-groups.
This feature isn't really ready yet -- the relevance isn't good, so
the emails aren't a great experience. More work needed; pending that,
just don't send them.
There's already a per-realm setting, which doesn't have a control in
the org settings UI but does suppress it in the per-user settings UI.
Piggyback on that to suppress that UI control when the feature is
disabled at the server level too.
Also cut a comment that hasn't really made sense since the logic was
changed months ago -- the comment originally explained why we sent
digests on Tuesday, Wednesday, and Thursday, and doesn't correspond to
why we dialled back to weekly on Tuesdays.
The digest emails have little in common with the email mirror, beyond
that they both involve email. Give their tests their own file, with a
corresponding name, so it's easy to find this code's tests.
Applies the logic to allow community members to edit topics
of others' messages if this setting is True. Otherwise,
only administrators can update the topic of others' messages.
This logic includes a 24-hour time limit for community topic editing.
This commit asserts that parse_user_agent never returns None. The
RegEx will match any string, so that `match` is never None. This
brings test coverage of lib/user_agent.py to 100%. Changes were also
made in test/test_decorators.py and views/compatibility.py to reflect
that parse_user_agent cannot return None.
Improves: #7089.
Fixes: #8779.
There were two instances of `ensure_stream` being called and assigned to
a variable with the variable not being used elsewhere. pyflakes picked
up on this (where it didn't in the previous version likely due to tuple
unpacking), so the the variable assignment has been replaced with a call
to `ensure_stream`.
Issue #2088 asked for a wrapper to be created for
`create_stream_if_needed` (called `ensure_stream`) for the 25 times that
`create_stream_if_needed` is called and ignores whether the stream was
created. This commit replaces relevant occurences of
`create_stream_if_needed` with `ensure_stream`, including imports.
The changes weren't significant enough to add any tests or do any
additional manual testing.
The refactoring intended to make the API easier to use in most cases.
The majority of uses of `create_stream_if_needed` ignored the second
parameter.
Fixes: #2088.
To ensure that we have some basic data for custom profile settings,
in the `populate_db` data set, remove `options['test_suite']` check
for adding intial custom profile data.
It's possible that this won't work with some versions of the
third-party backend, but tabbott has tested carefully that it does
work correctly with the Apache basic auth backend in our test
environment.
In this commit we start to support redirects to urls supplied as a
'next' param for the following two backends:
* GoogleOAuth2 based backend.
* GitHubAuthBackend.
This commit migrates realm emoji to be addressed by their `id` rather
than their name. This fixes a long standing issue which was causing
an error on uploading an emoji with same name as a deactivated realm
emoji.
Fixes: #6977.
This makes this value much easier for a server admin to change than it
was when embedded directly in the code. (Note this entire mechanism
already only applies on a server open for anyone to create a realm.)
Doing this also means getting the default out of the database.
Instead, we make the column nullable, and when it's NULL in the
database, treat that as whatever the current default is. This better
matches anyway the likely model where there are a few realms with
specially-set values, and everything else should be treated uniformly.
The migration contains a `RenameField` step, which sounds scary
operationally -- but it really does mean just the *field*, in
the model within the Python code. The underlying column's name
doesn't change.
This fixes an unpleasant regression in
f5edeb01ae, where we stopped correctly
filtering users who have an open browser session that's idle. These
users are tagged as "UserPresence.IDLE" with an current timestamp in
the database, and should be treated as idle for presence purposes.
As a result, if you had an open Zulip browser session, you incorrectly
wouldn't get missed-message emails for PMs and mentions before this fix.
This changes the followup_day2 emails delay from one day later to two days
later if it is getting delivered on any working days(i.e. Mon - Fri).
For Thursday it is compromised to next day as it would be too late to
postponed to Monday and for Friday it should be Monday.
At last actually, emails should send one hour before the above calculated so
that user can catch them when they are dealing with these kinds of stuff.
Fixes: #7078.
These changes are in one commit, since the previous typing of check_url
does not match the centralized strict definition (object/Any vs Text),
actually already used elsewhere in validator.py, and also had a different
API.
check_url is updated here to match the API of the other check_* functions,
ie. val is an object (not Text) & returns Optional[str]. It also now checks
the value is text explicitly at run-time, which was only type-checked
previously. Tests are updated accordingly.
Currently, when other private stream subscriber add realm admin to
stream, new copy private stream is created in realm admin's streams.
Which resulted in error, cause there are two similar stream element
in stream settings.
If new subscriber is added to private stream, we first send them
stream `create` event, cause private stream are not visible until
user don't get subscribed at least once. But realm admins can now
always access private stream, so when realm admin is subscribed to
stream, realm admin get stream `create` event even if stream already
exist in on realm admin client side.
Fix this by extracting realm admins from stream `create` event on
`add` subscription operation and sending private stream `create`
event to all realm admins on stream creation operation.
Fixes#8695
The domain name is being set in the helper function
'slack_workspace_to_realm', but it should be set in the main function
'do_convert_data', as we need it in other child functions of
'do_convert_data'.
We now consistently set our query limits so that we get at
least `num_after` rows such that id > anchor. (Obviously, the
caveat is that if there aren't enough rows that fulfill the
query, we'll return the full set of rows, but that may be less
than `num_after`.) Likewise for `num_before`.
Before this change, we would sometimes return one too few rows
for narrow queries.
Now, we're still a bit broken, but in a more consistent way. If
we have a query that does not match the anchor row (which could
be true even for a non-narrow query), but which does match lots
of rows after the anchor, we'll return `num_after + 1` rows
on the right hand side, whether or not the query has narrow
parameters.
The off-by-one semantics here have probably been moot all along,
since our windows are approximate to begin with. If we set
num_after to 100, its just a rough performance optimization to
begin with, so it doesn't matter whether we return 99 or 101 rows,
as long as we set the anchor correctly on the subsequent query.
We will make the results more rigorous in a follow up commit.
We start to force downloads for the attachment files. We do this
for all files except images or pdf's. We would like images or pdf's
to open up in browser itself.
Tweaked by tabbott for comment clarity and correctness.
This will allow realm admins to remove others from private stream to
which the realm administrator is not subscribed; this is important for
managing those streams, because previously nobody could remove users
from private streams that didn't have any realm administrators
subscribed.
This will allow realm admins to access subscribers of unsubscribed
private stream. This is a preparatory commit for letting realm admins
remove those users.
This will allow realm admins to update the names and descriptions of
private streams even if they are not subscribed, which fixes the buggy
behavior that previously nobody could(!).
If anchor is 0, there is no sense doing a before_query.
Likewise, if anchor is `LARGER_THAN_MAX_MESSAGE_ID`, there is
no sense doing an after_query.
We introduce variables called `need_before_query` and
`need_after_query` to enforce those conditions.
This also adds some comments explaining the fallthrough case
where neither query makes sense.
If use_first_unread_anchor is set and we don't have any unread
messages, then our anchor is effectively "positive infinity" and
we can streamline queries.
In the past we'd have clauses like `message_id <= 999999999999999`
in the query that were harmless but crufty.
Apparently, we did essentially all the work to support showing full
topic history to newly subscribed users from a data flow perspective,
but didn't actually enable this feature by having the topic history
endpoint grant access to historical topics. This fixes that gap.
I'm not altogether happy with how the code and tests read for this
feature; the code itself has more duplication than I'd like, and the
tests do too, but it works.
We now include whether the message was a private or group private
message; this is particularly important with the new setting to
disable including any message content in these emails (since in that
case, one doesn't know anything about the message types).
If new private stream is created by realm admin without realm admin
subscribed to it, then it doesn't automatically add created stream to
realm admin's stream list. We have to reload the browser to get newly
created stream in stream list. Cause private stream creation event is
only sent to the subscribed users to private stream, so even if realm
admin is acting user, they don't get creation event.
We should send private stream creation event to realm admin users along
with subscribed user to stream, as realm admins can access unsubscribed
private streams.
Tweaked by tabbott to fix various typos and clean up the code.
Till now, we had been storing realm emoji's name in emoji code field
in reactions' model. This commit migrates it to store realm emoji's id.
It is a part of effort to migrate realm emojis to be referenced by their
id and not by name.
"incorrect" here means rejected by a bot's validate_config() method.
A common scenario for this is validating API keys before the bot is
created. If validate_config() fails, the bot will not be created.
Adds realm_bot delete event. On bot ownership change, add event is
sent to the bot_owner(if not admin) and delete event to the
previous bot owner(if not admin). For admin, update event is sent.
if the test fails, the 'output_dir' would not be deleted and
hence it would give an error when we run the tests next time,
as 'do_convert_data' expects an empty 'output_dir'.
Also the unzipped data file should be removed if the test fails
at 'do_convert_data'.
The messages were first being read and passed to the helper
functions channel wise.
This function makes a list of all the messages in the all the channels
beforehand which would be used to pass in the helper functions.
This field has been unused by clients for some time, and isn't great
for our public archive feature plans (where we'll not want to be
including email addresses in messages).
Add `translate_emoticons` to `prop_types` and `expected_keys`.
Furthermore, create a emoji-translating Markdown inline pattern.
Also use a JavaScript version of `translate_emoticons` and then use
this function during Markdown previews and as a preprocessor. This
is only needed for previews, because usually emoticon translation
happens on the backend after sending.
Add tests for emoticon translation, a settings UI, and a /help/ page
as well.
Tweaked by tabbott to fix various test failurse as well as how this
handles whitespace, requiring emoticons to not have adjacent
characters.
Fixes#1768.
This sets up a new test class with a simple
test, mostly for increasing coverage. The class
should in the future be extended to properly
verify the handle_feedback() logic.
Webhook functions wrapped by the decorator:
@authenticated_api_view(is_webhook=True)
now log payloads that cause exceptions to webhook-errors.log.
Note that authenticated_api_view is only used by webhooks/github
and not anywhere else.
slack avatar urls have the format:
'https://ca.slack-edge.com/<team_id>-<user_id>-<avatar_hash>-<size>'
For any url of this form, if the user hasn't uploaded an image,
Slack uses default gravatar, but we don't have a way of knowing if Slack
has used the uploaded image or the custom gravatar
eg: https://ca.slack-edge.com/T5YFFM2QY-U6006P1CN-gd41c3c33cbe-512.
Hence, avatar_source should be mapped to 'U'.
Previously, this function executed the same test as
test_bots.py/test_create_embedded_bot_with_incorrect_service_name().
Now, instead of testing to add an embedded bot with an incorrect service
name, we test messaging an embedded bot with an incorrect service
name.
This requires updating one of the tests for the group_pm_with feature
in test_narrow to use the new style of tautology generated by SQLAlchemy.
Thanks to Sinwar for investigating this.
Fixes#8381.
The check for the channel ('general' and 'random') must be added before
'build_defaultstream' function is called and then the id is incremented.
Otherwise, the id appended at the end of second defaultstream object, which would be
greater than the total number of defaultstream objects would crash at
'defaultstream_id_list[defaultstream_id]' which is a paramater of 'build_defaultstream'.
Added tests to prevent the same.
This is necessary for mobile apps to do the right thing when only
RemoteUserBackend is enabled, namely, directly redirect to the
third-party SSO auth site as soon as the user enters the server URL
(no need to display a login form, since it'll be useless).
Previously, we used to raise an exception if the direct dev login code
path was attempted when:
* we were running under production environment.
* dev. login was not enabled.
Now we redirect to an error page and give an explanatory message to the
user.
Fixes#8249.