Make configfile and logfile configurable via commandline options

Use argparse to parse --config und --logfile so it can be better used from
a startup script.

Add Debian startup-script in contrib/

contrib/httpuploadcomponent

@@ -0,0 +1,72 @@
+#!/bin/bash
+### BEGIN INIT INFO
+# Provides:          HttpUploadComponent
+# Required-Start:    prosody
+# Required-Stop:     prosody
+# Default-Start:     2 3 4 5
+# Default-Stop:      0 1 6
+# Short-Description: Start HttpUploadComponent
+# Description:       HttpUploadComponent for prosody
+### END INIT INFO
+## more info: http://wiki.debian.org/LSBInitScripts
+
+. /lib/lsb/init-functions
+
+PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin
+DAEMON=/usr/local/src/HttpUploadComponent/server.py
+NAME=httpuploadcomponent
+DESC=HttpUploadComponent
+CONFIG=/etc/prosody/HttpUploadComponent.yml
+LOGFILE=/var/log/prosody/httpuploadcomponent.log
+PIDFILE=/var/run/${NAME}.pid
+USER=prosody
+export LOGNAME=$USER
+
+test -x $DAEMON || exit 0
+set -e
+
+function _start() {
+    start-stop-daemon --start --quiet --pidfile $PIDFILE --chuid $USER:$USER --background --make-pidfile --exec $DAEMON -- --config $CONFIG --logfile $LOGFILE
+}
+
+function _stop() {
+    start-stop-daemon --stop --quiet --pidfile $PIDFILE --oknodo --retry 3
+    rm -f $PIDFILE
+}
+
+function _status() {
+    start-stop-daemon --status --quiet --pidfile $PIDFILE
+    return $?
+}
+
+
+case "$1" in
+        start)
+                echo -n "Starting $DESC: "
+                _start
+                echo "ok"
+                ;;
+        stop)
+                echo -n "Stopping $DESC: "
+                _stop
+                echo "ok"
+                ;;
+        restart|force-reload)
+                echo -n "Restarting $DESC: "
+                _stop
+                sleep 1
+                _start
+                echo "ok"
+                ;;
+        status)
+                echo -n "Status of $DESC: "
+                _status && echo "running" || echo "stopped"
+                ;;
+        *)
+                N=/etc/init.d/$NAME
+                echo "Usage: $N {start|stop|restart|force-reload|status}" >&2
+                exit 1
+                ;;
+esac
+
+exit 0

server.py

@@ -10,6 +10,7 @@ import hashlib
 import random
 import os
 import ssl
+import argparse
 from threading import Thread
 from threading import Lock
 try:
@@ -24,6 +25,8 @@ except ImportError:
 import sleekxmpp
 from sleekxmpp.componentxmpp import ComponentXMPP
 
+LOGLEVEL=logging.DEBUG
+
 global files
 global files_lock
 global config
@@ -165,13 +168,19 @@ if __name__ == "__main__":
     global files_lock
     global config
 
-    with open('config.yml','r') as ymlfile:
+    parser = argparse.ArgumentParser()
+    parser.add_argument("-c", "--config", type=unicode, default='config.yml', help='Specify alternate config file.')
+    parser.add_argument("-l", "--logfile", type=unicode, default=None, help='File where the server log will be stored. If not specified log to stdout.')
+    args = parser.parse_args()
+
+    with open(args.config,'r') as ymlfile:
         config = yaml.load(ymlfile)
 
     files = set()
     files_lock = Lock()
-    logging.basicConfig(level=logging.DEBUG,
+    logging.basicConfig(level=LOGLEVEL,
-                            format='%(levelname)-8s %(message)s')
+                            format='%(asctime)-24s %(levelname)-8s %(message)s',
+                            filename=args.logfile)
     server = ThreadedHTTPServer(('0.0.0.0', config['http_port']), HttpHandler)
     if 'keyfile' in config and 'certfile' in config:
         server.socket = ssl.wrap_socket(server.socket, keyfile=config['keyfile'], certfile=config['certfile'])