epriestley 439821c7b2 Don't require one-time tokens to view file resources
Summary:
Ref T10262. This removes one-time tokens and makes file data responses always-cacheable (for 30 days).

The URI will stop working once any attached object changes its view policy, or the file view policy itself changes.

Files with `canCDN` (totally public data like profile images, CSS, JS, etc) use "cache-control: public" so they can be CDN'd.

Files without `canCDN` use "cache-control: private" so they won't be cached by the CDN. They could still be cached by a misbehaving local cache, but if you don't want your users seeing one anothers' secret files you should configure your local network properly.

Our "Cache-Control" headers were also from 1999 or something, update them to be more modern/sane. I can't find any evidence that any browser has done the wrong thing with this simpler ruleset in the last ~10 years.

Test Plan:
  - Configured alternate file domain.
  - Viewed site: stuff worked.
  - Accessed a file on primary domain, got redirected to alternate domain.
  - Verified proper cache headers for `canCDN` (public) and non-`canCDN` (private) files.
  - Uploaded a file to a task, edited task policy, verified it scrambled the old URI.
  - Reloaded task, new URI generated transparently.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10262

Differential Revision: https://secure.phabricator.com/D15642
2016-04-06 14:14:36 -07:00
2015-06-09 23:06:52 +10:00
2015-02-12 07:00:13 +11:00
2015-02-12 07:00:13 +11:00

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