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* auth: document tweakables in lua scriptJason A. Donenfeld2014-01-17-0/+10
| | | | Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
* auth: have cgit calculate login addressJason A. Donenfeld2014-01-16-6/+1
| | | | | | | This way we're sure to use virtual root, or any other strangeness encountered. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
* auth: lua string comparisons are time invariantJason A. Donenfeld2014-01-16-2/+2
| | | | | | By default, strings are compared by hash, so we can remove this comment. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
* authentication: use hidden form instead of refererJason A. Donenfeld2014-01-16-79/+121
| | | | | | | This also gives us some CSRF protection. Note that we make use of the hmac to protect the redirect value. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
* auth: add basic authentication filter frameworkJason A. Donenfeld2014-01-16-0/+225
This leverages the new lua support. See filters/simple-authentication.lua for explaination of how this works. There is also additional documentation in cgitrc.5.txt. Though this is a cookie-based approach, cgit's caching mechanism is preserved for authenticated pages. Very plugable and extendable depending on user needs. The sample script uses an HMAC-SHA1 based cookie to store the currently logged in user, with an expiration date. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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