# -*- coding: utf-8 -*-
"""
    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 3 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, see <http://www.gnu.org/licenses/>.

    @author: RaNaN
"""
import re
from BaseHTTPServer import HTTPServer, BaseHTTPRequestHandler
from cgi import FieldStorage
from urllib import unquote
from base64 import standard_b64decode
from binascii import unhexlify

try:
    from Crypto.Cipher import AES
except:
    pass

from RemoteManager import BackendBase

core = None
js = None

class ClickAndLoadBackend(BackendBase):
    def setup(self, host, port):
        self.httpd = HTTPServer((host, port), CNLHandler)
        global core, js
        core = self.m.core
        js = core.js

    def serve(self):
        while self.enabled:
            self.httpd.handle_request()

class CNLHandler(BaseHTTPRequestHandler):

    def add_package(self, name, urls, queue=0):
        print "name", name
        print "urls", urls
        print "queue", queue

    def get_post(self, name, default=""):
        if name in self.post:
            return self.post[name]
        else:
            return default

    def start_response(self, string):

        self.send_response(200)

        self.send_header("Content-Length", len(string))
        self.send_header("Content-Language", "de")
        self.send_header("Vary", "Accept-Language, Cookie")
        self.send_header("Cache-Control", "no-cache, must-revalidate")
        self.send_header("Content-type", "text/html")
        self.end_headers()

    def do_GET(self):
        path = self.path.strip("/").lower()
        #self.wfile.write(path+"\n")

        self.map = [ (r"add$", self.add),
                (r"addcrypted$", self.addcrypted),
                (r"addcrypted2$", self.addcrypted2),
                (r"flashgot", self.flashgot),
                (r"crossdomain\.xml", self.crossdomain),
                (r"checkSupportForUrl", self.checksupport),
                (r"jdcheck.js", self.jdcheck),
                (r"", self.flash) ]

        func = None
        for r, f in self.map:
            if re.match(r"(flash(got)?/?)?"+r, path):
                func = f
                break

        if func:
            try:
                resp = func()
                if not resp: resp = "success"
                resp += "\r\n"
                self.start_response(resp)
                self.wfile.write(resp)
            except Exception,e :
                self.send_error(500, str(e))
        else:
            self.send_error(404, "Not Found")

    def do_POST(self):
        form = FieldStorage(
                fp=self.rfile,
                headers=self.headers,
                environ={'REQUEST_METHOD':'POST',
                         'CONTENT_TYPE':self.headers['Content-Type'],
                         })

        self.post = {}
        for name in form.keys():
            self.post[name] = form[name].value

        return self.do_GET()

    def flash(self):
        return "JDownloader"

    def add(self):
        package = self.get_post('referer', 'ClickAndLoad Package')
        urls = filter(lambda x: x != "", self.get_post('urls').split("\n"))

        self.add_package(package, urls, 0)

    def addcrypted(self):
        package = self.get_post('referer', 'ClickAndLoad Package')
        dlc = self.get_post('crypted').replace(" ", "+")

        core.upload_container(package, dlc)

    def addcrypted2(self):
        package = self.get_post("source", "ClickAndLoad Package")
        crypted = self.get_post("crypted")
        jk = self.get_post("jk")

        crypted = standard_b64decode(unquote(crypted.replace(" ", "+")))
        jk = "%s f()" % jk
        jk = js.eval(jk)
        Key = unhexlify(jk)
        IV = Key

        obj = AES.new(Key, AES.MODE_CBC, IV)
        result = obj.decrypt(crypted).replace("\x00", "").replace("\r","").split("\n")

        result = filter(lambda x: x != "", result)

        self.add_package(package, result, 0)


    def flashgot(self):
        autostart = int(self.get_post('autostart', 0))
        package = self.get_post('package', "FlashGot")
        urls = filter(lambda x: x != "", self.get_post('urls').split("\n"))

        self.add_package(package, urls, autostart)

    def crossdomain(self):
        rep = "<?xml version=\"1.0\"?>\n"
        rep += "<!DOCTYPE cross-domain-policy SYSTEM \"http://www.macromedia.com/xml/dtds/cross-domain-policy.dtd\">\n"
        rep += "<cross-domain-policy>\n"
        rep += "<allow-access-from domain=\"*\" />\n"
        rep += "</cross-domain-policy>"
        return rep

    def checksupport(self):
        pass

    def jdcheck(self):
        rep = "jdownloader=true;\n"
        rep += "var version='10629';\n"
        return rep