#!/usr/bin/env python
""" Simple python server to allow Remote phonebook of ST2030 to work with
    Asterisk server, using the phone and fullname settings of the config file
    as input values, like
    [20012]
    fullname=Rick van der Zwet


    In order to get it working alter HOST and PORT to the location of your webserver

    Next specify remote phone book URL to be http://HOST:PORT/search?q=#SEARCH
    at Advanced -> Phone Lists -> Remote Phone Book in the webinterface

    OR

    In your autoprovising files the entries under the section [sys]
    Phonebook1_url=http://HOST:PORT/search?q=#SEARCH
    Phonebook1_name=example.com phone book




    Original webserver template - Copyright Jon Berg , turtlemeat.com
"""
from __future__ import with_statement
import string,cgi,time,os
from os import curdir, sep
from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer
import urlparse, urllib
import ConfigParser

__author__    = "Rick van der Zwet"
__copyright   = "Copyright 2008, Rick van der Zwet"
__licence__   = "BSD"
__version__   = "0.0.2"
__maitainer__ = "Rick van der Zwet"
__email__     = "rick@wzoeterwoude.net"
__status__    = "Production"
__credits__   = [" Jon Berg , turtlemeat.com"]
__website__   = "http://rickvanderzwet.nl/svn/data/develop/pythonplaza/asterisk-remote-phonebook.py"

#
# Specify your asterisk config file and the IP/host you like the mini-server to
# be running on
USERFILE='/etc/asterisk/users.conf'
LOGFILE='/var/log/phonebook.log'
HOST='192.168.50.10'
PORT=8000

class MyHandler(BaseHTTPRequestHandler):
    __base = BaseHTTPRequestHandler

    protocol_version = "HTTP/1.0"

    def log_message(self, format, *args):
        """Log an arbitrary message., custom function, log to file, instead of stdout
        """

        with open(LOGFILE,"a") as f:
            f.write("%s - - [%s] %s\n" %
                (self.address_string(),
                self.log_date_time_string(),
                format%args))


    def do_GET(self):
        parsed_path = urlparse.urlparse(self.path)
        rpath = parsed_path.path
        qdict = cgi.parse_qs(parsed_path.query,True)
        
        if rpath == '/search':
            if qdict.has_key('q'):
                searchkey = qdict['q'][0].lower()
            else:
                qdict['q'] = ' '
                searchkey = ' '

            #Parse astrisk file, fetch phone number and Name
            config = ConfigParser.ConfigParser()
            try:
                config.readfp(open(USERFILE))
            except IOError:
                self.send_error(404,'Config file not found/readable: %s' % USERFILE)
                return

            #Do matching
            results = []
            for section in config.sections():
                try:
                    if config.get(section, 'fullname').lower().find(searchkey) != -1:
                        results.append(([config.get(section, 'fullname')][0], section));
                except ConfigParser.NoOptionError:
                    pass
            results.sort()

            #Get right output part
            if qdict.has_key('from'):
                f = int(qdict['from'][0])
                t = f + 31
                if t > len(results):
                    t = len(results)
                results = results[f:t]


            output = ''
            if (len(results) < 32):
                output += '<ThomsonPhoneBook>\n'
                #result smaller 32 hits
                for name, phone in results:
                    output += '<DirectoryEntry>\n'
                    output += '\t<Name>%s</Name>\n' % name
                    output += '\t<Telephone>%s</Telephone>\n' % phone
                    output += '</DirectoryEntry>\n'
                output += '</ThomsonPhoneBook>\n'
            else:
                output += '<ThomsonPhoneMenu>\n'
                p = 0
                while (p < len(results)):
                    # Damm phone, no & but &amp; only
                    url = 'http://%s:%s/search?q=%s&amp;from=%s' % (HOST, PORT, urllib.quote_plus(qdict['q'][0]), p)
                    #url = 'http://%s:%s/search' % (HOST, PORT)
                    name_start = results[p][0]
                    if (p + 31 < len(results)):
                        name_end = results[p+31][0]
                    else:
                        name_end = results[len(results) - 1][0]
                    output += '<MenuItem>\n'
                    output += '\t<Name>%s -> %s</Name>\n' % (name_start, name_end)
                    output += '\t<URL>%s</URL>\n' % url
                    output += '</MenuItem>\n'
                    p = p + 32
                output += '</ThomsonPhoneMenu>\n'

            # Output file
            # Broken Phone ST2030, requires \r on all headers
            # Broken Phone ST2030 does not properly support HTTP/1.1 as keep-alive
            # is not running properly , could _not_ be seperated into properly
            # self.send_response(200), self.send_header('Connnection: close')

            # Allow easy XML debugging in Mozilla Firefox 3
            # * Content-Type is don't care value, might as well text/plain
            # * Connection: close is don't care value
            
            head = 'HTTP/1.0 200 OK\r\n'
            head += 'Content-Length: %s\r\n' % len(output)
            head += 'Content-Type: application/xml\r\n'
            head += 'Connection: close\r\n'
            head += '\r\n'
            self.wfile.write(head + output + '\r\n');

            # Force connection closing
            self.close_connection = 1
            # Log succesfull request
            self.log_request(200,len(output))

def main():
    server = HTTPServer((HOST, PORT), MyHandler)
    try:
        pid = os.fork()
    except OSError, e:
        raise Exception, "%s [%d]" % (e.strerror, e.errno)
    if (pid==0):
        os.setsid()
        print 'started httpserver on %s:%s... (pid=%s)' % (HOST, PORT, os.getpid())
        print 'Logfile at: %s' % LOGFILE
        server.serve_forever()
        # On any signal close socket
        # server.socket.close()
    else:
        os._exit(0)

if __name__ == '__main__':
    main()