#! /usr/bin/env python
# -*- coding: ISO-8859-15 -*-

# PyKotIcon - Windows System Tray Icon for PyKota
#
# (c) 2003-2004 Jerome Alet <alet@librelogiciel.com>
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
#
# $Id$
#
#

import sys
import urllib
import urllib2

try :
    import win32api
    import win32net
    import win32netcon
    hasWindowsExtensions = 1
except ImportError :    
    hasWindowsExtensions = 0
    

DUMPYKOTA_URL = "http://cgi.librelogiciel.com/cgi-bin/dumpykota.cgi"

class UserQuota :
    """A class for PyKota User Print Quota entries."""
    def __init__(self, printername, pagecount, softlimit, hardlimit, datelimit):
        """Initialize user print quota datas."""
        self.PrinterName = printername
        try :
            self.PageCounter = int(pagecount)
        except (ValueError, TypeError) :
            self.PageCounter = 0
        try :
            self.SoftLimit = int(softlimit)
        except (ValueError, TypeError) :
            self.SoftLimit = None
        try :
            self.HardLimit = int(hardlimit)
        except (ValueError, TypeError) :
            self.HardLimit = None
        self.DateLimit = datelimit
        
class User :
    """A class for PyKota users."""
    def __init__(self, username, userinfo, userquotas) :
        """Initialize user datas."""
        self.Name = username
        self.LimitBy = userinfo["limitby"][0].lower()
        try :
            self.Balance = float(userinfo["balance"][0])
        except (ValueError, TypeError) :
            self.Balance = 0.0
        try :
            self.LifeTimePaid = float(userinfo["lifetimepaid"][0])
        except (ValueError, TypeError) :
            self.LifeTimePaid = 0.0
        self.Quotas = []
        for i in range(len(userquotas["printername"])) :
            printername = userquotas["printername"][i]
            pagecounter = userquotas["pagecounter"][i]
            softlimit = userquotas["softlimit"][i]
            hardlimit = userquotas["hardlimit"][i]
            datelimit = userquotas["datelimit"][i]
            self.Quotas.append(UserQuota(printername, pagecounter, softlimit, \
                                         hardlimit, datelimit))
            
class CGINetworkInterface :
    """A class for all network interactions."""
    def __init__(self, cgiurl, authname=None, authpw=None) :
        """Initialize CGI connection datas."""
        self.cgiurl = cgiurl
        self.authname = authname
        self.authpw = authpw
        
    def retrieveDatas(self, arguments, fieldnames) :
        """Retrieve datas from the CGI script."""
        args = { "report" : 1,
                 "format" : "csv",
               }  
        args.update(arguments)            
        answer = {}
        try :            
            url = "%s?%s" % (self.cgiurl, urllib.urlencode(args))
            u = urllib2.urlopen(url)
            lines = u.readlines()
        except IOError, msg :    
            raise IOError, "Unable to retrieve %s : %s" % (url, msg)
        else :    
            u.close()
            try :
                lines = [ line.strip().split(",") for line in lines ]
                fields = [field[1:-1] for field in lines[0]]
                indices = [fields.index(fname) for fname in fieldnames]
                answer = dict([ (fieldname, \
                                  [ line[fields.index(fieldname)][1:-1] \
                                    for line in lines[1:] ]) \
                                for fieldname in fieldnames ])
            except :    
                raise ValueError, "Invalid datas retrieved from %s" % url
        return answer
        
    def getPrinterNames(self) :
        """Retrieve the printer's names."""
        arguments = { "report" : 1,
                      "format" : "csv",
                      "datatype" : "printers",
                    }  
        return self.retrieveDatas(arguments, ["printername"])["printername"]
        
    def getUserInfo(self, username) :
        """Retrieve the user's information."""
        arguments = { "datatype" : "users",
                      "filter" : "username=%s" % username,
                    }  
        return self.retrieveDatas(arguments, ("limitby", "balance", "lifetimepaid"))
        
    def getUserPQuotas(self, username) :
        """Retrieve the user's print quota information."""
        arguments = { "datatype" : "upquotas",
                      "filter" : "username=%s" % username,
                    }  
        return self.retrieveDatas(arguments, ("printername", "pagecounter", \
                                              "softlimit", "hardlimit", "datelimit"))
                                              
    def getUser(self, username) :
        """Retrieves the user account and quota information."""
        info = self.getUserInfo(username)
        quotas = self.getUserPQuotas(username)
        return User(username, info, quotas)
    
def getWindowsUserName() :    
    """Retrieves the current user's name under MS Windows."""
    dc = win32net.NetServerEnum(None, 100, win32netcon.SV_TYPE_DOMAIN_CTRL)
    user = win32api.GetUserName()
    if dc[0] :
        dcname = dc[0][0]['name']
        return win32net.NetUserGetInfo("\\\\" + dcname, user, 1)
    else:
        return win32net.NetUserGetInfo(None, user, 1)
    
if __name__ == "__main__" :
    net = CGINetworkInterface(DUMPYKOTA_URL)
    #print "List of printers : ", net.getPrinterNames()
    
    #print "User : ", net.getUserInfo("jerome")
    
    #print "User print quotas : ", net.getUserPQuotas("jerome")
    #jerome = net.getUser("jerome")
    print getWindowsUserName()