we were seeing isort produce different outputs locally and in docker -
this was due to it having different opinions about whether the tests
module (ie all our unit tests) is a first party (local) or third party
(pip installed) import. It's a first party import, so by defining this
in the setup.cfg isort settings, we can force it to be consistent
between environments.
Note: I don't know why it was different in the first place though
Redis is giving us a big performance boost (it’s roughly halved the
median request time on the admin app).
Once we’re confident that it’s working properly[1] we can eke out a bit
more performance from it by keeping the caches alive for longer. As
far as I can tell we’re still using Redis in a very low-volume way[2],
so increasing the number of things we’re storing shouldn’t start taxing
our Redis server at all. But reducing the number of times we have to
hit the API to refresh the cache _should_ result in some performance
increase.
---
1. ie we’re not seeing instances of stale caches not being invalidated
2. We have 2.5G of available space in Redis. Here is our current usage:
```
used_memory:7728960
used_memory_human:7.37M
used_memory_rss:7728960
used_memory_peak:16563776
used_memory_peak_human:15.79M
used_memory_lua:37888
```
This is easier to read than having to understand the arguments 1…n of
the cache decorator are ‘magic’, and gives us more flexibility about
how the cache keys are formatted, eg being able to add words in the
middle of them.
Also changes the key format for all templates to be
`service-{service_id}-templates` instead of `templates-{service_id}`
because then it’s clearer what the ID represents.
A lot of the frequently-used pages in the admin app rely on the API to
get templates.
So this commit adds three new caches:
- a single template version (including a key without a version number,
which is the current version)
- all the templates for a service
- all versions of a template
The first will be the most crucial for performance, but there’s not much
cost to adding the other two.
Accepting an invite changes:
- the `user_to_service` list of users returned by `GET /service/<id>`
- the `services` list return by `GET /user/<id>`
The latter change is causing the functional tests to fail.
In the same way, and for the same reasons that we’re caching the service
object.
Here’s a sample of the data returned by the API – so we should make sure
that any changes to this data invalidate the cache.
If we ever change a user’s phone number (for example) directly in the
database, then we will need to invalidate this cache manually.
```python
{
'data':{
'organisations':[
'4c707b81-4c6d-4d33-9376-17f0de6e0405'
],
'logged_in_at':'2018-04-10T11:41:03.781990Z',
'id':'2c45486e-177e-40b8-997d-5f4f81a461ca',
'email_address':'test@example.gov.uk',
'platform_admin':False,
'password_changed_at':'2018-01-01 10:10:10.100000',
'permissions':{
'42a9d4f2-1444-4e22-9133-52d9e406213f':[
'manage_api_keys',
'send_letters',
'manage_users',
'manage_templates',
'view_activity',
'send_texts',
'send_emails',
'manage_settings'
],
'a928eef8-0f25-41ca-b480-0447f29b2c20':[
'manage_users',
'manage_templates',
'manage_settings',
'send_texts',
'send_emails',
'send_letters',
'manage_api_keys',
'view_activity'
],
},
'state':'active',
'mobile_number':'07700900123',
'failed_login_count':0,
'name':'Example',
'services':[
'6078a8c0-52f5-4c4f-b724-d7d1ff2d3884',
'6afe3c1c-7fda-4d8d-aa8d-769c4bdf7803',
],
'current_session_id':'fea2ade1-db0a-4c90-93e7-c64a877ce83e',
'auth_type':'sms_auth'
}
}
```
Most of the time spent by the admin app to generate a page is spent
waiting for the API. This is slow for three reasons:
1. Talking to the API means going out to the internet, then through
nginx, the Flask app, SQLAlchemy, down to the database, and then
serialising the result to JSON and making it into a HTTP response
2. Each call to the API is synchronous, therefore if a page needs 3 API
calls to render then the second API call won’t be made until the
first has finished, and the third won’t start until the second has
finished
3. Every request for a service page in the admin app makes a minimum
of two requests to the API (`GET /service/…` and `GET /user/…`)
Hitting the database will always be the slowest part of an app like
Notify. But this slowness is exacerbated by 2. and 3. Conversely every
speedup made to 1. is multiplied by 2. and 3.
So this pull request aims to make 1. a _lot_ faster by taking nginx,
Flask, SQLAlchemy and the database out of the equation. It replaces them
with Redis, which as an in-memory key/value store is a lot faster than
Postgres. There is still the overhead of going across the network to
talk to Redis, but the net improvement is vast.
This commit only caches the `GET /service` response, but is written in
such a way that we can easily expand to caching other responses down the
line.
The tradeoff here is that our code is more complex, and we risk
introducing edge cases where a cache becomes stale. The mitigations
against this are:
- invalidating all caches after 24h so a stale cache doesn’t remain
around indefinitely
- being careful when we add new stuff to the service response
---
Some indicative numbers, based on:
- `GET http://localhost:6012/services/<service_id>/template/<template_id>`
- with the admin app running locally
- talking to Redis running locally
- also talking to the API running locally, itself talking to a local
Postgres instance
- times measured with Chrome web inspector, average of 10 requests
╲ | No cache | Cache service | Cache service and user | Cache service, user and template
-- | -- | -- | -- | --
**Request time** | 136ms | 97ms | 73ms | 37ms
**Improvement** | 0% | 41% | 88% | 265%
---
Estimates of how much storage this requires:
- Services: 1,942 on production × 2kb = 4Mb
- Users: 4,534 on production × 2kb = 9Mb
- Templates: 7,079 on production × 4kb = 28Mb
in the db, we have several rows for single permissions - we separate
`send_messages` into `send_texts`, `send_emails` and `send_letters`,
and also `manage_service` into `manage_users` and `manage_settings`.
But on the front end we don't do anything with this distinction. It's
unhelpful for us to have to think about permissions as groups of things
when we can never split them up at all. So we should combine them. This
commit makes sure:
* when user models are read (from JSON direct from the API), we
should transform them from db permissions into roles.
* when permissions are persisted (editing permissions, and creating
invites), we should send db permissions to the API.
All other interaction with permissions (should just be the endpoint
decorator and checks in html templates generally) should use admin
roles.
platform_admin is a separate concept to permissions, so by removing the
checks for it from the current_user.has_permissions function, we can
simplify things greatly. We already record on the user whether they're
a platform admin anyway.
Currently requests to the API made from the admin app are going from
PaaS admin app to the nginx router ELB, which then routes them back
to the api app on PaaS.
This makes sense for external requests, but for requests made from
the admin app we could skip nginx and go directly to the api PaaS
host, which should reduce load on the nginx instances and
potentially reduce latency of the api requests.
API apps on PaaS are checking the X-Custom-Forwarder header (which
is set by nginx on proxy_pass requests) to only allow requests going
through the proxy.
This adds the custom header to the API client requests, so that they
can pass that header check without going through nginx.
Done using isort[1], with the following command:
```
isort -rc ./app ./tests
```
Adds linting to the `run_tests.sh` script to stop badly-sorted imports
getting re-introduced.
Chosen style is ‘Vertical Hanging Indent’ with trailing commas, because
I think it gives the cleanest diffs, eg:
```
from third_party import (
lib1,
lib2,
lib3,
lib4,
)
```
1. https://pypi.python.org/pypi/isort
One of the things we need to know for a service to go live is whether
they have at least two users with the ‘manage service’ permission.
So this commit adds a method to the client to count how many users have
a given permission. We can do logic on this count later. But having the
counting done in the client feels like a cleaner separation of concerns.
Meant some refactoring of the way `service_id` is extracted from the
request, in order to make it easier to mock.
When users request to go live we check stuff like:
- if they’ve added templates
- if they have email templates (then we can check their reply to
address)
This commit adds a method to do this programatically rather than
manually.
We _could_ do this in SQL, but for page that’s used intermittently it
doesn’t feel worth the work/optimisation (and the client method is at
least in place now if we do ever need to lean on this code more
heavily).
When we’re doing user research we often:
- start the task by inviting the participant to a service on Notify
- have them use a prototype version of the admin app, hosted on a
different domain
Currently we can’t do both of these things together, because the invite
emails always send people to notifications.service.gov.uk (because it’s
the API that sends the emails, and the prototype admin app points at the
production API).
This commit changes the admin app to tell the API which host to use when
creating the invite links.
Depends on:
- [ ] https://github.com/alphagov/notifications-api/pull/1515
Different parts of government get billed slightly differently, and
there’s differences in how much money we’re allowed to give them.
Think these numbers are right, but should be double checked.
So that we can default services to their appropriate text allowance, we
need to find out what sector they're in. So let's start collecting that
from teams as they create new services.
I think Central/Local/NHS are the right options, but these can be easily
changed if not.
The GDS Way™[1] recommends using Flake8 to lint Python projects.
This commit takes the Flake8 config from Digital Marketplace API[2] and
removes the bits we don’t need.
It changes the `max_complexity` setting to 14, which is the most complex
code we have in this repo currently (we shouldn’t be writing code _more_
complex than what we already have).
This commit also fixes the errors found by Flake8, which includes 6(!)
tests which were never getting run because they had the same names as
existing tests.
Here is a full list of the errors that were found and fixed:
```
./app/__init__.py:2:1: F401 're' imported but unused
./app/__init__.py:4:1: F401 'json' imported but unused
./app/__init__.py:8:1: F401 'dateutil' imported but unused
./app/__init__.py:11:1: F401 'flask.escape' imported but unused
./app/__init__.py:41:1: F401 'app.proxy_fix' imported but unused
./app/__init__.py:129:5: F821 undefined name 'proxy_fix'
./app/__init__.py:221:19: F821 undefined name 'highlight'
./app/__init__.py:221:35: F821 undefined name 'JavascriptLexer'
./app/__init__.py:221:54: F821 undefined name 'HtmlFormatter'
./app/config.py:2:1: F401 'datetime.timedelta' imported but unused
./app/event_handlers.py:2:1: F401 'flask_login.current_user' imported but unused
./app/utils.py:11:1: F401 'dateutil.parser' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.two_factor' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.notifications' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.add_service' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.forgot_password' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.inbound_number' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.styleguide' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.organisations' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.letter_jobs' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.verify' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.conversation' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.api_keys' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.send' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.dashboard' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.jobs' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.manage_users' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.sign_in' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.sign_out' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.code_not_received' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.invites' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.platform_admin' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.providers' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.service_settings' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.index' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.new_password' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.user_profile' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.feedback' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.choose_service' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.templates' imported but unused
./app/main/__init__.py:5:1: F401 'app.main.views.register' imported but unused
./app/main/forms.py:12:1: F401 'wtforms.SelectField' imported but unused
./app/main/views/api_keys.py:37:29: E241 multiple spaces after ':'
./app/main/views/feedback.py:3:1: F401 'flask.flash' imported but unused
./app/main/views/feedback.py:122:17: E123 closing bracket does not match indentation of opening bracket's line
./app/main/views/inbound_number.py:1:1: F401 'flask.url_for' imported but unused
./app/main/views/inbound_number.py:1:1: F401 'flask.session' imported but unused
./app/main/views/inbound_number.py:1:1: F401 'flask.redirect' imported but unused
./app/main/views/inbound_number.py:1:1: F401 'flask.request' imported but unused
./app/main/views/inbound_number.py:13:1: F401 'flask.jsonify' imported but unused
./app/main/views/jobs.py:31:1: F401 'app.utils.get_template' imported but unused
./app/main/views/letter_jobs.py:1:1: F401 'datetime' imported but unused
./app/main/views/letter_jobs.py:6:1: F401 'app.format_datetime_24h' imported but unused
./app/main/views/manage_users.py:111:9: E123 closing bracket does not match indentation of opening bracket's line
./app/main/views/notifications.py:121:5: F841 local variable 'status_args' is assigned to but never used
./app/main/views/organisations.py:1:1: F401 'flask.request' imported but unused
./app/main/views/service_settings.py:77:9: E123 closing bracket does not match indentation of opening bracket's line
./app/main/views/service_settings.py:82:9: E123 closing bracket does not match indentation of opening bracket's line
./app/main/views/service_settings.py:420:13: E123 closing bracket does not match indentation of opening bracket's line
./app/main/views/sign_in.py:12:1: F401 'flask_login.confirm_login' imported but unused
./app/main/views/sign_in.py:17:1: F401 'app.service_api_client' imported but unused
./app/main/views/sign_in.py:62:13: E123 closing bracket does not match indentation of opening bracket's line
./app/main/views/templates.py:4:1: F401 'flask.json' imported but unused
./app/main/views/templates.py:17:1: F401 'notifications_utils.formatters.escape_html' imported but unused
./app/main/views/templates.py:23:1: F401 'app.utils.get_help_argument' imported but unused
./app/main/views/templates.py:64:13: E123 closing bracket does not match indentation of opening bracket's line
./app/notify_client/service_api_client.py:6:1: F401 '.notification_api_client' imported but unused
./app/notify_client/user_api_client.py:1:1: F401 'uuid' imported but unused
./app/notify_client/user_api_client.py:3:1: F401 'flask.session' imported but unused
./tests/__init__.py:1:1: F401 'csv' imported but unused
./tests/app/main/test_asset_fingerprinter.py:2:1: F401 'os' imported but unused
./tests/app/main/test_asset_fingerprinter.py:4:1: F401 'unittest.mock' imported but unused
./tests/app/main/test_asset_fingerprinter.py:98:9: F841 local variable 'string_with_unicode_character' is assigned to but never used
./tests/app/main/test_errorhandlers.py:2:1: F401 'flask.url_for' imported but unused
./tests/app/main/test_permissions.py:26:13: F841 local variable 'response' is assigned to but never used
./tests/app/main/test_placeholder_form.py:3:1: F401 'wtforms.Label' imported but unused
./tests/app/main/test_placeholder_form.py:11:10: F841 local variable 'req' is assigned to but never used
./tests/app/main/test_two_factor_form.py:10:67: F841 local variable 'req' is assigned to but never used
./tests/app/main/test_two_factor_form.py:23:65: F841 local variable 'req' is assigned to but never used
./tests/app/main/test_two_factor_form.py:37:48: F841 local variable 'req' is assigned to but never used
./tests/app/main/test_two_factor_form.py:51:67: F841 local variable 'req' is assigned to but never used
./tests/app/main/test_two_factor_form.py:65:67: F841 local variable 'req' is assigned to but never used
./tests/app/main/views/test_accept_invite.py:356:5: F841 local variable 'element' is assigned to but never used
./tests/app/main/views/test_activity.py:11:1: F811 redefinition of unused 'mock_get_notifications' from line 11
./tests/app/main/views/test_activity.py:18:1: F401 'datetime.datetime' imported but unused
./tests/app/main/views/test_activity.py:102:5: F841 local variable 'content' is assigned to but never used
./tests/app/main/views/test_activity.py:104:5: F841 local variable 'notification' is assigned to but never used
./tests/app/main/views/test_activity.py:337:5: F841 local variable '_notifications_mock' is assigned to but never used
./tests/app/main/views/test_activity.py:373:13: E126 continuation line over-indented for hanging indent
./tests/app/main/views/test_activity.py:378:9: E121 continuation line under-indented for hanging indent
./tests/app/main/views/test_activity.py:404:13: E126 continuation line over-indented for hanging indent
./tests/app/main/views/test_activity.py:407:9: E121 continuation line under-indented for hanging indent
./tests/app/main/views/test_api_keys.py:354:5: F841 local variable 'response' is assigned to but never used
./tests/app/main/views/test_conversation.py:5:1: F401 'bs4.BeautifulSoup' imported but unused
./tests/app/main/views/test_conversation.py:198:5: F841 local variable 'mock_get_inbound_sms' is assigned to but never used
./tests/app/main/views/test_dashboard.py:53:5: F841 local variable 'mock_template_stats' is assigned to but never used
./tests/app/main/views/test_dashboard.py:72:5: F841 local variable 'mock_template_stats' is assigned to but never used
./tests/app/main/views/test_jobs.py:2:1: F401 'uuid' imported but unused
./tests/app/main/views/test_jobs.py:3:1: F401 'urllib.parse.urlparse' imported but unused
./tests/app/main/views/test_jobs.py:3:1: F401 'urllib.parse.quote' imported but unused
./tests/app/main/views/test_jobs.py:3:1: F401 'urllib.parse.parse_qs' imported but unused
./tests/app/main/views/test_jobs.py:9:1: F401 'app.main.views.jobs.get_status_filters' imported but unused
./tests/app/main/views/test_jobs.py:10:1: F401 'tests.notification_json' imported but unused
./tests/app/main/views/test_letters.py:6:1: F401 'tests.service_json' imported but unused
./tests/app/main/views/test_notifications.py:5:1: F401 'app.utils.REQUESTED_STATUSES' imported but unused
./tests/app/main/views/test_notifications.py:5:1: F401 'app.utils.DELIVERED_STATUSES' imported but unused
./tests/app/main/views/test_notifications.py:5:1: F401 'app.utils.SENDING_STATUSES' imported but unused
./tests/app/main/views/test_notifications.py:5:1: F401 'app.utils.FAILURE_STATUSES' imported but unused
./tests/app/main/views/test_platform_admin.py:242:13: E126 continuation line over-indented for hanging indent
./tests/app/main/views/test_platform_admin.py:247:13: E126 continuation line over-indented for hanging indent
./tests/app/main/views/test_send.py:3:1: F401 'unittest.mock.Mock' imported but unused
./tests/app/main/views/test_send.py:18:1: F811 redefinition of unused 'mock_get_service' from line 18
./tests/app/main/views/test_send.py:18:1: F401 'tests.conftest.multiple_letter_contact_blocks' imported but unused
./tests/app/main/views/test_send.py:18:1: F401 'tests.conftest.no_sms_senders' imported but unused
./tests/app/main/views/test_send.py:18:1: F401 'tests.conftest.multiple_sms_senders' imported but unused
./tests/app/main/views/test_send.py:18:1: F401 'tests.conftest.no_letter_contact_blocks' imported but unused
./tests/app/main/views/test_send.py:102:5: F841 local variable 'response' is assigned to but never used
./tests/app/main/views/test_send.py:870:5: F841 local variable 'response' is assigned to but never used
./tests/app/main/views/test_send.py:1367:5: F841 local variable 'service_id' is assigned to but never used
./tests/app/main/views/test_send.py:1451:13: E126 continuation line over-indented for hanging indent
./tests/app/main/views/test_send.py:1620:80: E226 missing whitespace around arithmetic operator
./tests/app/main/views/test_send.py:1909:13: E126 continuation line over-indented for hanging indent
./tests/app/main/views/test_send.py:1912:9: E121 continuation line under-indented for hanging indent
./tests/app/main/views/test_service_settings.py:13:1: F811 redefinition of unused 'no_reply_to_email_addresses' from line 13
./tests/app/main/views/test_service_settings.py:13:1: F401 'tests.conftest.single_reply_to_email_address' imported but unused
./tests/app/main/views/test_service_settings.py:28:5: E123 closing bracket does not match indentation of opening bracket's line
./tests/app/main/views/test_service_settings.py:104:1: F811 redefinition of unused 'single_reply_to_email_address' from line 13
./tests/app/main/views/test_service_settings.py:166:1: F811 redefinition of unused 'single_reply_to_email_address' from line 13
./tests/app/main/views/test_service_settings.py:186:5: F841 local variable 'mocked_get_fn' is assigned to but never used
./tests/app/main/views/test_service_settings.py:217:1: F811 redefinition of unused 'single_reply_to_email_address' from line 13
./tests/app/main/views/test_service_settings.py:237:1: F811 redefinition of unused 'single_reply_to_email_address' from line 13
./tests/app/main/views/test_service_settings.py:257:1: F811 redefinition of unused 'single_reply_to_email_address' from line 13
./tests/app/main/views/test_service_settings.py:307:1: F811 redefinition of unused 'single_reply_to_email_address' from line 13
./tests/app/main/views/test_service_settings.py:340:1: F811 redefinition of unused 'single_reply_to_email_address' from line 13
./tests/app/main/views/test_service_settings.py:466:1: F811 redefinition of unused 'single_reply_to_email_address' from line 13
./tests/app/main/views/test_service_settings.py:555:1: F811 redefinition of unused 'single_reply_to_email_address' from line 13
./tests/app/main/views/test_service_settings.py:615:1: F811 redefinition of unused 'single_reply_to_email_address' from line 13
./tests/app/main/views/test_service_settings.py:719:1: F811 redefinition of unused 'single_reply_to_email_address' from line 13
./tests/app/main/views/test_service_settings.py:874:5: F841 local variable 'page' is assigned to but never used
./tests/app/main/views/test_service_settings.py:902:5: F841 local variable 'page' is assigned to but never used
./tests/app/main/views/test_service_settings.py:954:5: F841 local variable 'page' is assigned to but never used
./tests/app/main/views/test_service_settings.py:986:5: F841 local variable 'page' is assigned to but never used
./tests/app/main/views/test_service_settings.py:1101:1: F811 redefinition of unused 'single_reply_to_email_address' from line 13
./tests/app/main/views/test_service_settings.py:1121:1: F811 redefinition of unused 'single_reply_to_email_address' from line 13
./tests/app/main/views/test_service_settings.py:1271:1: F811 redefinition of unused 'test_set_letter_contact_block_saves' from line 1189
./tests/app/main/views/test_service_settings.py:1433:5: F841 local variable 'page' is assigned to but never used
./tests/app/main/views/test_service_settings.py:1495:5: F841 local variable 'mocked_get_fn' is assigned to but never used
./tests/app/main/views/test_service_settings.py:1540:5: F841 local variable 'mocked_get_fn' is assigned to but never used
./tests/app/main/views/test_service_settings.py:1570:1: F811 redefinition of unused 'single_reply_to_email_address' from line 13
./tests/app/main/views/test_service_settings.py:1589:1: F811 redefinition of unused 'single_reply_to_email_address' from line 13
./tests/app/main/views/test_service_settings.py:1621:1: F811 redefinition of unused 'single_reply_to_email_address' from line 13
./tests/app/main/views/test_service_settings.py:1641:1: F811 redefinition of unused 'single_reply_to_email_address' from line 13
./tests/app/main/views/test_service_settings.py:1658:1: F811 redefinition of unused 'single_reply_to_email_address' from line 13
./tests/app/main/views/test_service_settings.py:1676:1: F811 redefinition of unused 'single_reply_to_email_address' from line 13
./tests/app/main/views/test_service_settings.py:1697:1: F811 redefinition of unused 'single_reply_to_email_address' from line 13
./tests/app/main/views/test_service_settings.py:1759:1: F811 redefinition of unused 'single_reply_to_email_address' from line 13
./tests/app/main/views/test_service_settings.py:1775:1: F811 redefinition of unused 'single_reply_to_email_address' from line 13
./tests/app/main/views/test_templates.py:3:1: F401 'uuid' imported but unused
./tests/app/main/views/test_templates.py:11:1: F401 'tests.conftest.mock_get_user' imported but unused
./tests/app/main/views/test_templates.py:514:1: F811 redefinition of unused 'mock_get_user' from line 11
./tests/app/main/views/test_templates.py:672:1: F811 redefinition of unused 'mock_get_user' from line 11
./tests/app/main/views/test_templates.py:795:1: F811 redefinition of unused 'mock_get_user' from line 11
./tests/app/main/views/test_templates.py:835:1: F811 redefinition of unused 'mock_get_user' from line 11
./tests/app/main/views/test_two_factor.py:67:13: E126 continuation line over-indented for hanging indent
./tests/app/notify_client/test_notification_client.py:79:5: F841 local variable 'mock_post' is assigned to but never used
```
1. https://gds-way.cloudapps.digital/manuals/programming-languages/python/linting.html#how-to-use-flake8
2. d5ab8afef4/.flake8
The Notify API client changed in version 4 to take two arguments, not
three (service ID was removed in favour of the combined API key).
This gets a bit gnarly because the API key has to be at least a certain
length so it can be substringed internally.
in the NotifyAdminAPIClient, which all api traffic goes through, return
403 for any stateful requests (post, put and delete), if the following
criteria have been met:
* a current_service is set
(this prevents checks being carried out on non-service related
updates, eg editing user details)
* the service is not active
* the current user is not a platform admin
so platform admins can still update anything.
Note: Without any specific error handling, the user will see a generic
403 page. This is fine, probably - it's a relatively niche case that
you'll be editing a service you can't get to anyway
