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# lighttpd configuration for cgit.
#
# Written for the lighttpd 1.4 branch, at 1.4.85 when last reviewed.
#
# This is a complete lighttpd.conf rather than a snippet for conf-enabled, so
# nothing here is included from elsewhere and no distro base config is
# assumed. Check it and run it with
# lighttpd -tt -f /path/to/lighttpd.conf # check the syntax and modules
# lighttpd -D -f /path/to/lighttpd.conf # run it in the foreground
#
# lighttpd runs the cgit.cgi binary directly through mod_cgi, so no FastCGI
# bridge is needed. This is cgit's classic reference deployment, mod_cgi with
# mod_alias and mod_setenv.
#
# Paths assumed below, edit them to match your install.
# cgit CGI binary /usr/lib/cgit/cgit.cgi
# static assets /usr/share/cgit (cgit.css cgit.js cgit.png favicon.ico robots.txt)
# cgit config /etc/cgitrc
# public URL https://git.example.org/ (cgit at the domain root)
#
# cgit is one CGI executable. It learns the repository and the page from
# PATH_INFO and reads page options such as h= and id= from QUERY_STRING. cgit
# builds its own link base from SCRIPT_NAME. The five static assets are served
# straight off disk and must never be routed through cgit.
# A plain assignment rather than "+=", since this config stands on its own
# and there is no distro base list to append to. Adding mod_accesslog here
# is what the access log below needs.
server.modules = (
"mod_alias",
"mod_setenv",
"mod_cgi",
"mod_accesslog",
)
server.port = 80
server.username = "http" # Debian and Ubuntu use www-data
server.groupname = "http"
server.document-root = "/usr/share/cgit" # a valid docroot must exist. The
# alias rules below do the routing.
server.pid-file = "/run/lighttpd.pid"
server.errorlog = "/var/log/lighttpd/error.log"
accesslog.filename = "/var/log/lighttpd/access.log"
# Drop the version number from the Server header and from error pages.
server.tag = "lighttpd"
# The only request body cgit ever reads is the auth-filter login form, and it
# stops after 4096 bytes. Nothing else here accepts an upload. The value is in
# kilobytes and the default of 0 means unlimited.
server.max-request-size = 64
# mod_alias serves the assets off disk, so lighttpd must know their content
# types. Without this the stylesheet is sent as application/octet-stream and
# the browser ignores it. Only these five files are served off disk, so this
# short table is the whole of it and no external mime file is needed.
mimetype.assign = (
".css" => "text/css",
".js" => "text/javascript",
".png" => "image/png",
".ico" => "image/vnd.microsoft.icon",
".txt" => "text/plain",
)
# The vhost, as a top-level conditional so it matches on both the port 80
# socket and the optional TLS socket at the end of this file.
$HTTP["host"] == "git.example.org" {
# Which config cgit reads. It falls back to the compiled-in /etc/cgitrc,
# the same path used here, but setting it makes the location explicit.
setenv.add-environment = ( "CGIT_CONFIG" => "/etc/cgitrc" )
# Site-wide security headers are set here so they also cover the static
# assets lighttpd serves. cgit itself sends only the headers the server
# cannot supply. Those are Status, Content-Type, Content-Length and
# Content-Disposition on downloads, Location on redirects, a Cache-Control
# marking the login page no-store and a page behind an auth filter private,
# the auth filter's Set-Cookie, and on raw repository bytes a nosniff of
# its own next to the stricter policy "default-src 'none'". Everything
# else, this policy included, is the server's job.
#
# The add in add-response-header is load bearing. It appends a second
# copy next to what cgit emitted, so a raw page carries both policies and
# the browser enforces the stricter one, while the doubled nosniff line
# is harmless. The set-response-header directive would instead replace
# what cgit sent, swapping the strict policy on raw repository content
# for this looser site one. Never switch add to set.
#
# form-action self covers the login form, the only form cgit renders. If
# you enable the gravatar or libravatar avatar filter, add its host to
# img-src. A head-include or repo.head-content that injects a <style>
# block needs 'unsafe-inline' added to style-src.
#
# Permissions-Policy refuses the browser features a git viewer never asks
# for, camera and location among them, for everything served here,
# repository files included. The opener policy cuts any window.opener
# link between cgit and pages that open it, and the resource policy stops
# other origins from embedding what cgit serves, a hotlinked raw file for
# example. git clients are not browsers and ignore both, so clone and
# snapshot downloads keep working. The stricter
# Cross-Origin-Embedder-Policy is deliberately absent because it would
# break the avatar filters mentioned above.
setenv.add-response-header = (
"Content-Security-Policy" => "default-src 'self'; script-src 'self'; style-src 'self'; img-src 'self' data:; object-src 'none'; base-uri 'none'; frame-ancestors 'self'; form-action 'self'",
"X-Content-Type-Options" => "nosniff",
"Referrer-Policy" => "no-referrer",
"Permissions-Policy" => "accelerometer=(), autoplay=(), camera=(), display-capture=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), midi=(), payment=(), picture-in-picture=(), usb=()",
"Cross-Origin-Opener-Policy" => "same-origin",
"Cross-Origin-Resource-Policy" => "same-origin"
)
# Two years of forced HTTPS. Enable this together with the TLS socket at
# the end of this file and only once you serve HTTPS exclusively, since
# it is hard to undo once browsers have seen it.
#setenv.add-response-header += ( "Strict-Transport-Security" => "max-age=63072000; includeSubDomains" )
# Register the cgit binary as a CGI program. The empty value means the
# file is itself the program rather than input to an interpreter.
cgi.assign = ( "cgit.cgi" => "" )
# Routing. lighttpd's alias.url is first-match in declaration order, not
# longest prefix, so the five static entries must come before the / entry.
# If / came first it would swallow every request and recent lighttpd
# refuses to start. The static entries are served off disk and the / entry
# hands everything else to cgit.
#
# The trailing slash on cgit.cgi/ is load bearing. lighttpd builds the
# physical path by stripping the matched key off the front of the URL and
# appending the rest to the value. For the key / the remainder carries no
# leading slash, so without the trailing slash a request for
# /linux/tree/kernel/sched.c glues onto the binary name as
# /usr/lib/cgit/cgit.cgilinux/tree/... and 404s. The trailing slash
# restores the separator, giving cgit SCRIPT_FILENAME /usr/lib/cgit/cgit.cgi
# and PATH_INFO /linux/tree/kernel/sched.c.
alias.url = (
"/cgit.css" => "/usr/share/cgit/cgit.css",
"/cgit.js" => "/usr/share/cgit/cgit.js",
"/cgit.png" => "/usr/share/cgit/cgit.png",
"/favicon.ico" => "/usr/share/cgit/favicon.ico",
"/robots.txt" => "/usr/share/cgit/robots.txt",
"/" => "/usr/lib/cgit/cgit.cgi/",
)
# Served at / the SCRIPT_NAME is empty and cgit derives its link base
# correctly. For a sub-path install use a key without a trailing slash
# mapped to the binary without a trailing slash, for example
# "/git" => "/usr/lib/cgit/cgit.cgi"
# so /git/linux/tree resolves to /usr/lib/cgit/cgit.cgi/linux/tree, giving
# SCRIPT_NAME /git and PATH_INFO /linux/tree. cgit auto-detects the prefix.
# If links come out wrong, pin it in cgitrc with virtual-root=/git.
}
# Uncomment this whole block to enable TLS on 443. The host block above is
# socket independent, so it serves cgit over this socket too once the crypto
# is set.
#server.modules += ( "mod_openssl" )
#
#$SERVER["socket"] == ":443" {
# ssl.engine = "enable"
# ssl.pemfile = "/etc/lighttpd/certs/git.example.org.crt"
# ssl.privkey = "/etc/lighttpd/certs/git.example.org.key"
# ssl.ca-file = "/etc/lighttpd/certs/git.example.org.chain.pem"
# ssl.openssl.ssl-conf-cmd = ( "MinProtocol" => "TLSv1.2" )
#}
#
# Redirect plain HTTP to HTTPS, scoped to the port 80 socket. Needs
# mod_redirect.
#server.modules += ( "mod_redirect" )
#$SERVER["socket"] == ":80" {
# $HTTP["host"] == "git.example.org" {
# url.redirect = ( "^/(.*)" => "https://git.example.org/$1" )
# }
#}
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