include grp.h for setgroup(2) on linux

when switching user also set the groups backport of 872a717687a377cc02860e44c67dc1934ebfa9cb

copyright years

sort the MIME mappings and do a binary search to match

don't load the built-in list when using `types'

allow add_mime to fail add_mime nows allocate dinamically copies of the passed strings, so that we can actually free what we parse from the config file. This matters a lot especially with lengthy `types' block: strings that reach the internal mapping are never free'd, so every manual addition is leaked.

const-ify some tables matches found with % grep -R '=[ ]*{' . | fgrep -v const

allow using a custom hostname for SNI during proxying add a `sni' option for the `proxy' block: the given name is used instead of the one extracted by the `relay-to' rule.

proxy: allow multiple proxy blocks, matching options and validations as a side effect the order of the content of a server block is relaxed: options, location or proxy blocks can be put in any order.

simplify the proxying code it doesn't make any sense to keep the proxying info per-location: proxying only one per-vhost. It can't work differently, it doesn't make sense anyway.

support optional client certificate for proxy rule

add ability to proxy requests Add to gmid the ability to forwad a request to another gemini server and thus acting like a reverse proxy. The current syntax for the config file is server "example.com" { ... proxy relay-to host:port } Further options (like the use of custom certificates) are planned. cf. github issue #7

free OCSP path when clearing the config was forgotten in ff05125eb81e5bbf2cf05b8434d03bce584936e0

fmt

Implement OCSP stapling support Currently dogfooding this patch at gemini.sgregoratto.me. To test, run the following command and look for the "OCSP response" header: openssl s_client -connect "gemini.sgregoratto.me:1965" -status