nextcloud-server

Commit Graph

Author	SHA1	Message	Date
Lukas Reschke	9e6634814e	Add support for CSP nonces 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>	9 years ago
Joas Schilling	ba87db3fcc	Fix others	10 years ago
Lukas Reschke	aba539703c	Update license headers	10 years ago
Roeland Jago Douma	9050e76d95	Move \OC\Security to PSR-4	10 years ago
Lukas Reschke	a977465af5	Add new CSRF manager for unit testing purposes This adds a new CSRF manager for unit testing purposes, it's interface is based upon https://github.com/symfony/security-csrf. Due to some of our required custom changes it is however not possible to use the Symfony component directly.	10 years ago

4 Commits (da2aafa5cfa4d6e331b299fe866766f6021392fa)