* Order the imports
* No leading slash on imports
* Empty line before namespace
* One line per import
* Empty after imports
* Emmpty line at bottom of file
Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>
Allow passing a nonce from the web server, allowing the possibility to enforce a strict CSP from the web server.
Signed-off-by: Sam Bull <git@sambull.org>
Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>
This introduces and event that can be listend to when we actually use
the CSP. This means that apps no longer have to always inject their CSP
but only do so when it is required. Yay for being lazy.
Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>
When run with php's build-in server (for instance on localhost:8080), IP provided through $this->server['REMOTE_ADDR'] is [::1], which is not an acceptable format for \inet_pton. This removes the brackets if there's any.
Signed-off-by: Thomas Citharel <tcit@tcit.fr>
When on php7.2 we can use the new and improved ARGON2I hashing.
This adds support for that to the hasher. When verifying an old hash
we'll update rehash to move all hashes eventually to the new hash
function.
Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>
* Add typehints
* Add return types
* Opcode opts from phpstorm
* Made strict
* Fixed tests: No need to test bogus values anymore strict typing fixes
this
Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>
Currently, when disabling the brute force protection no new brute force attempts are logged. However, the ones logged within the last 24 hours will still be used for throttling.
This is quite an unexpected behaviour and caused some support issues. With this change when the brute force protection is disabled also the existing attempts within the last 24 hours will be disregarded.
Signed-off-by: Lukas Reschke <lukas@statuscode.ch>
This allows adding rate limiting via annotations to controllers, as one example:
```
@UserRateThrottle(limit=5, period=100)
@AnonRateThrottle(limit=1, period=100)
```
Would mean that logged-in users can access the page 5 times within 100 seconds, and anonymous users 1 time within 100 seconds. If only an AnonRateThrottle is specified that one will also be applied to logged-in users.
Signed-off-by: Lukas Reschke <lukas@statuscode.ch>
CSP nonces are a feature available with CSP v2. Basically instead of saying "JS resources from the same domain are ok to be served" we now say "Ressources from everywhere are allowed as long as they add a `nonce` attribute to the script tag with the right nonce.
At the moment the nonce is basically just a `<?php p(base64_encode($_['requesttoken'])) ?>`, we have to decode the requesttoken since `:` is not an allowed value in the nonce. So if somebody does on their own include JS files (instead of using the `addScript` public API, they now must also include that attribute.)
IE does currently not implement CSP v2, thus there is a whitelist included that delivers the new CSP v2 policy to newer browsers. Check http://caniuse.com/#feat=contentsecuritypolicy2 for the current browser support list. An alternative approach would be to just add `'unsafe-inline'` as well as `'unsafe-inline'` is ignored by CSPv2 when a nonce is set. But this would make this security feature unusable at all in IE. Not worth it at the moment IMO.
Implementing this offers the following advantages:
1. **Security:** As we host resources from the same domain by design we don't have to worry about 'self' anymore being in the whitelist
2. **Performance:** We can move oc.js again to inline JS. This makes the loading way quicker as we don't have to load on every load of a new web page a blocking dynamically non-cached JavaScript file.
If you want to toy with CSP see also https://csp-evaluator.withgoogle.com/
Signed-off-by: Lukas Reschke <lukas@statuscode.ch>
Class Throttler implements the bruteforce protection for security actions in
Nextcloud.
It is working by logging invalid login attempts to the database and slowing
down all login attempts from the same subnet. The max delay is 30 seconds and
the starting delay are 200 milliseconds. (after the first failed login)
Roeland Jago Douma
Johannes Koenig
Sam Bull
Morris Jobke
Thomas Citharel
Joas Schilling
Bjoern Schiessle
Lukas Reschke
Robin Appelman
Leon Klingele
Johannes Ernst