package/network/services/uhttpd/files/uhttpd.init

   1 #!/bin/sh /etc/rc.common
   2 # Copyright (C) 2010 Jo-Philipp Wich
   3
   4 START=50
   5
   6 USE_PROCD=1
   7
   8 UHTTPD_BIN="/usr/sbin/uhttpd"
   9 PX5G_BIN="/usr/sbin/px5g"
  10 OPENSSL_BIN="/usr/bin/openssl"
  11
  12 append_arg() {
  13         local cfg="$1"
  14         local var="$2"
  15         local opt="$3"
  16         local def="$4"
  17         local val
  18
  19         config_get val "$cfg" "$var"
  20         [ -n "$val" -o -n "$def" ] && procd_append_param command "$opt" "${val:-$def}"
  21 }
  22
  23 append_bool() {
  24         local cfg="$1"
  25         local var="$2"
  26         local opt="$3"
  27         local def="$4"
  28         local val
  29
  30         config_get_bool val "$cfg" "$var" "$def"
  31         [ "$val" = 1 ] && procd_append_param command "$opt"
  32 }
  33
  34 generate_keys() {
  35         local cfg="$1"
  36         local key="$2"
  37         local crt="$3"
  38         local days bits country state location commonname
  39
  40         config_get days       "$cfg" days
  41         config_get bits       "$cfg" bits
  42         config_get country    "$cfg" country
  43         config_get state      "$cfg" state
  44         config_get location   "$cfg" location
  45         config_get commonname "$cfg" commonname
  46
  47         # Prefer px5g for certificate generation (existence evaluated last)
  48         local GENKEY_CMD=""
  49         local UNIQUEID=$(dd if=/dev/urandom bs=1 count=4 | hexdump -e '1/1 "%02x"')
  50         [ -x "$OPENSSL_BIN" ] && GENKEY_CMD="$OPENSSL_BIN req -x509 -outform der -nodes"
  51         [ -x "$PX5G_BIN" ] && GENKEY_CMD="$PX5G_BIN selfsigned -der"
  52         [ -n "$GENKEY_CMD" ] && {
  53                 $GENKEY_CMD \
  54                         -days ${days:-730} -newkey rsa:${bits:-2048} -keyout "${UHTTPD_KEY}.new" -out "${UHTTPD_CERT}.new" \
  55                         -subj /C="${country:-DE}"/ST="${state:-Saxony}"/L="${location:-Leipzig}"/O="${commonname:-Lede}$UNIQUEID"/CN="${commonname:-Lede}"
  56                 sync
  57                 mv "${UHTTPD_KEY}.new" "${UHTTPD_KEY}"
  58                 mv "${UHTTPD_CERT}.new" "${UHTTPD_CERT}"
  59         }
  60 }
  61
  62 create_httpauth() {
  63         local cfg="$1"
  64         local prefix username password
  65
  66         config_get prefix "$cfg" prefix
  67         config_get username "$cfg" username
  68         config_get password "$cfg" password
  69
  70         if [ -z "$prefix" ] || [ -z "$username" ] || [ -z "$password" ]; then
  71                 return
  72         fi
  73         echo "${prefix}:${username}:${password}" >>$httpdconf
  74         haveauth=1
  75 }
  76
  77 start_instance()
  78 {
  79         UHTTPD_CERT=""
  80         UHTTPD_KEY=""
  81
  82         local cfg="$1"
  83         local realm="$(uci_get system.@system[0].hostname)"
  84         local listen http https interpreter indexes path handler httpdconf haveauth
  85
  86         procd_open_instance
  87         procd_set_param respawn
  88         procd_set_param stderr 1
  89         procd_set_param command "$UHTTPD_BIN" -f
  90
  91         config_get config "$cfg" config
  92         if [ -z "$config" ]; then
  93                 mkdir -p /var/etc/uhttpd
  94                 httpdconf="/var/etc/uhttpd/httpd.${cfg}.conf"
  95                 rm -f ${httpdconf}
  96                 config_list_foreach "$cfg" httpauth create_httpauth
  97                 if [ "$haveauth" = "1" ]; then
  98                         procd_append_param command -c ${httpdconf}
  99                         [ -r /etc/httpd.conf ] && cat /etc/httpd.conf >>/var/etc/uhttpd/httpd.${cfg}.conf
 100                 fi
 101         fi
 102
 103         append_arg "$cfg" home "-h"
 104         append_arg "$cfg" realm "-r" "${realm:-OpenWrt}"
 105         append_arg "$cfg" config "-c"
 106         append_arg "$cfg" cgi_prefix "-x"
 107         [ -f /usr/lib/uhttpd_lua.so ] && {
 108                 config_get handler "$cfg" lua_handler
 109                 [ -f "$handler" ] && append_arg "$cfg" lua_prefix "-l" && {
 110                         procd_append_param command "-L" "$handler"
 111                 }
 112         }
 113         [ -f /usr/lib/uhttpd_ubus.so ] && {
 114                 append_arg "$cfg" ubus_prefix "-u"
 115                 append_arg "$cfg" ubus_socket "-U"
 116                 append_bool "$cfg" ubus_cors "-X" 0
 117         }
 118         append_arg "$cfg" script_timeout "-t"
 119         append_arg "$cfg" network_timeout "-T"
 120         append_arg "$cfg" http_keepalive "-k"
 121         append_arg "$cfg" tcp_keepalive "-A"
 122         append_arg "$cfg" error_page "-E"
 123         append_arg "$cfg" max_requests "-n" 3
 124         append_arg "$cfg" max_connections "-N"
 125
 126         append_bool "$cfg" no_ubusauth "-a" 0
 127         append_bool "$cfg" no_symlinks "-S" 0
 128         append_bool "$cfg" no_dirlists "-D" 0
 129         append_bool "$cfg" rfc1918_filter "-R" 0
 130
 131         config_get alias_list "$cfg" alias
 132         for alias in $alias_list; do
 133                  procd_append_param command -y "$alias"
 134         done
 135
 136         config_get http "$cfg" listen_http
 137         for listen in $http; do
 138                  procd_append_param command -p "$listen"
 139         done
 140
 141         config_get interpreter "$cfg" interpreter
 142         for path in $interpreter; do
 143                 procd_append_param command -i "$path"
 144         done
 145
 146         config_get indexes "$cfg" index_page
 147         for path in $indexes; do
 148                 procd_append_param command -I "$path"
 149         done
 150
 151         config_get https "$cfg" listen_https
 152         config_get UHTTPD_KEY  "$cfg" key  /etc/uhttpd.key
 153         config_get UHTTPD_CERT "$cfg" cert /etc/uhttpd.crt
 154
 155         [ -f /lib/libustream-ssl.so ] && [ -n "$https" ] && {
 156                 [ -s "$UHTTPD_CERT" -a -s "$UHTTPD_KEY" ] || {
 157                         config_foreach generate_keys cert
 158                 }
 159
 160                 [ -f "$UHTTPD_CERT" -a -f "$UHTTPD_KEY" ] && {
 161                         append_arg "$cfg" cert "-C"
 162                         append_arg "$cfg" key  "-K"
 163
 164                         for listen in $https; do
 165                                 procd_append_param command -s "$listen"
 166                         done
 167                 }
 168
 169                 append_bool "$cfg" redirect_https "-q" 0
 170         }
 171
 172         for file in /etc/uhttpd/*.json; do
 173                 [ -s "$file" ] && procd_append_param command -H "$file"
 174         done
 175
 176         procd_close_instance
 177 }
 178
 179 service_triggers()
 180 {
 181         procd_add_reload_trigger "uhttpd"
 182 }
 183
 184 start_service() {
 185         config_load uhttpd
 186         config_foreach start_instance uhttpd
 187 }