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#!/bin/sh /etc/rc.common
# Copyright (C) 2010 Jo-Philipp Wich
START=50
USE_PROCD=1
UHTTPD_BIN="/usr/sbin/uhttpd"
PX5G_BIN="/usr/sbin/px5g"
OPENSSL_BIN="/usr/bin/openssl"
append_arg() {
local cfg="$1"
local var="$2"
local opt="$3"
local def="$4"
local val
config_get val "$cfg" "$var"
[ -n "$val" -o -n "$def" ] && procd_append_param command "$opt" "${val:-$def}"
}
append_bool() {
local cfg="$1"
local var="$2"
local opt="$3"
local def="$4"
local val
config_get_bool val "$cfg" "$var" "$def"
[ "$val" = 1 ] && procd_append_param command "$opt"
}
generate_keys() {
local cfg="$1"
local key="$2"
local crt="$3"
local days bits country state location organization commonname
config_get days "$cfg" days
config_get bits "$cfg" bits
config_get country "$cfg" country
config_get state "$cfg" state
config_get location "$cfg" location
config_get organization "$cfg" organization
config_get commonname "$cfg" commonname
config_get key_type "$cfg" key_type
config_get ec_curve "$cfg" ec_curve
# Prefer px5g for certificate generation (existence evaluated last)
local GENKEY_CMD=""
local KEY_OPTS="rsa:${bits:-2048}"
local UNIQUEID=$(dd if=/dev/urandom bs=1 count=4 | hexdump -e '1/1 "%02x"')
[ "$key_type" = "ec" ] && KEY_OPTS="ec -pkeyopt ec_paramgen_curve:${ec_curve:-P-256}"
[ -x "$OPENSSL_BIN" ] && GENKEY_CMD="$OPENSSL_BIN req -x509 -sha256 -outform der -nodes"
[ -x "$PX5G_BIN" ] && GENKEY_CMD="$PX5G_BIN selfsigned -der"
[ -n "$GENKEY_CMD" ] && {
$GENKEY_CMD \
-days ${days:-730} -newkey ${KEY_OPTS} -keyout "${UHTTPD_KEY}.new" -out "${UHTTPD_CERT}.new" \
-subj /C="${country:-ZZ}"/ST="${state:-Somewhere}"/L="${location:-Unknown}"/O="${organization:-OpenWrt$UNIQUEID}"/CN="${commonname:-OpenWrt}"
sync
mv "${UHTTPD_KEY}.new" "${UHTTPD_KEY}"
mv "${UHTTPD_CERT}.new" "${UHTTPD_CERT}"
}
}
create_httpauth() {
local cfg="$1"
local prefix username password
config_get prefix "$cfg" prefix
config_get username "$cfg" username
config_get password "$cfg" password
if [ -z "$prefix" ] || [ -z "$username" ] || [ -z "$password" ]; then
return
fi
echo "${prefix}:${username}:${password}" >>$httpdconf
haveauth=1
}
append_lua_prefix() {
local v="$1"
local prefix="${v%%=*}"
local handler="${v#*=}"
if [ "$prefix" != "$handler" ] && [ -n "$prefix" ] && [ -f "$handler" ]; then
procd_append_param command -l "$prefix" -L "$handler"
else
echo "Skipping invalid Lua prefix \"$v\"" >&2
fi
}
start_instance()
{
UHTTPD_CERT=""
UHTTPD_KEY=""
local cfg="$1"
local realm="$(uci_get system.@system[0].hostname)"
local listen http https interpreter indexes path handler httpdconf haveauth
local enabled
config_get_bool enabled "$cfg" 'enabled' 1
[ $enabled -gt 0 ] || return
procd_open_instance
procd_set_param respawn
procd_set_param stderr 1
procd_set_param command "$UHTTPD_BIN" -f
config_get config "$cfg" config
if [ -z "$config" ]; then
mkdir -p /var/etc/uhttpd
httpdconf="/var/etc/uhttpd/httpd.${cfg}.conf"
rm -f ${httpdconf}
config_list_foreach "$cfg" httpauth create_httpauth
if [ "$haveauth" = "1" ]; then
procd_append_param command -c ${httpdconf}
[ -r /etc/httpd.conf ] && cat /etc/httpd.conf >>/var/etc/uhttpd/httpd.${cfg}.conf
fi
fi
append_arg "$cfg" home "-h"
append_arg "$cfg" realm "-r" "${realm:-OpenWrt}"
append_arg "$cfg" config "-c"
append_arg "$cfg" cgi_prefix "-x"
[ -f /usr/lib/uhttpd_lua.so ] && {
local len
config_get len "$cfg" lua_prefix_LENGTH
if [ -n "$len" ]; then
config_list_foreach "$cfg" lua_prefix append_lua_prefix
else
config_get prefix "$cfg" lua_prefix
config_get handler "$cfg" lua_handler
append_lua_prefix "$prefix=$handler"
fi
}
[ -f /usr/lib/uhttpd_ubus.so ] && {
append_arg "$cfg" ubus_prefix "-u"
append_arg "$cfg" ubus_socket "-U"
append_bool "$cfg" ubus_cors "-X" 0
}
append_arg "$cfg" script_timeout "-t"
append_arg "$cfg" network_timeout "-T"
append_arg "$cfg" http_keepalive "-k"
append_arg "$cfg" tcp_keepalive "-A"
append_arg "$cfg" error_page "-E"
append_arg "$cfg" max_requests "-n" 3
append_arg "$cfg" max_connections "-N"
append_bool "$cfg" no_ubusauth "-a" 0
append_bool "$cfg" no_symlinks "-S" 0
append_bool "$cfg" no_dirlists "-D" 0
append_bool "$cfg" rfc1918_filter "-R" 0
config_get alias_list "$cfg" alias
for alias in $alias_list; do
procd_append_param command -y "$alias"
done
config_get http "$cfg" listen_http
for listen in $http; do
procd_append_param command -p "$listen"
done
config_get interpreter "$cfg" interpreter
for path in $interpreter; do
procd_append_param command -i "$path"
done
config_get indexes "$cfg" index_page
for path in $indexes; do
procd_append_param command -I "$path"
done
config_get https "$cfg" listen_https
config_get UHTTPD_KEY "$cfg" key /etc/uhttpd.key
config_get UHTTPD_CERT "$cfg" cert /etc/uhttpd.crt
[ -f /lib/libustream-ssl.so ] && [ -n "$https" ] && {
[ -s "$UHTTPD_CERT" -a -s "$UHTTPD_KEY" ] || {
config_foreach generate_keys cert
}
[ -f "$UHTTPD_CERT" -a -f "$UHTTPD_KEY" ] && {
append_arg "$cfg" cert "-C"
append_arg "$cfg" key "-K"
for listen in $https; do
procd_append_param command -s "$listen"
done
}
append_bool "$cfg" redirect_https "-q" 0
}
for file in /etc/uhttpd/*.json; do
[ -s "$file" ] && procd_append_param command -H "$file"
done
procd_close_instance
}
service_triggers()
{
procd_add_reload_trigger "uhttpd"
}
start_service() {
config_load uhttpd
config_foreach start_instance uhttpd
}
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