# *-* encoding: utf-8 *-*
# For NNM-Club Uploaders
# Copyright (c) 2012-2014 Valdos Sine <iam@toofat.ru>
#
# Usage:
#
#    python2 ./massdl.py [forum_number]
# 
# For getting help, execute "python2 ./massdl.py" without params

import time, tempfile, os, sys, commands
import lib.config as uconfig
import lib.messages as umessages
import dateutil
from dateutil.parser import *
version = 0.80
unixtime = int(time.time())
cookie = tempfile.mkstemp()
curdir = os.getcwd()
log_file = "/%i-massdl.log" % unixtime
domain = uconfig.domain


def write_to_log(imessage):
    log = open(curdir + log_file, 'a')
    log.write(imessage)
    log.close()

def cnsl_message(imessage, *args):
    if imessage == "invpyver":
        print umessages.c066
        write_to_log(umessages.m066)
        sys.exit(666)
    elif imessage == "nocurl":
        print umessages.c067
        write_to_log(umessages.m067)
        sys.exit(666)
    elif imessage == "help":
        print umessages.c000 % version
        sys.exit(0)
    elif imessage == "start":
        print umessages.c010 % (sys.argv[0], version)
        print umessages.c020 % sys.argv[1]
        write_to_log(umessages.m020)
    elif imessage == "login_ok":
        print umessages.c120 % set_username()[0]
        write_to_log(umessages.m120 % cookie[1])
    elif imessage == "login_failed":
        print umessages.c166 % set_username()[0]
        write_to_log(umessages.m166)
        sys.exit(666)
    elif imessage == "parsing_started":
        print umessages.c200
    elif imessage == "forum":
        print umessages.c220 % args[0]
        write_to_log(umessages.m220 % args[0])
    elif imessage == "pages":
        print umessages.c210 % args[0]
        write_to_log(umessages.m210 % args[0])
    elif imessage == "found_topics":
        print umessages.c221 % args[0]
        write_to_log(umessages.m221 % args[0])
    elif imessage == "download_started":
        print umessages.c300
    elif imessage == "downloading_torrent":
        print umessages.c310 % (args[0], args[1], args[2], args[4])
        write_to_log(umessages.m310 % (args[0], args[1], args[3]))
    elif imessage == "skip_non_approved":
        print umessages.c340 % (args[0], args[1], args[2])
        write_to_log(umessages.m340 % (args[0], args[1], args[2], args[3]))
    elif imessage == "done":
        print umessages.c021
        write_to_log(umessages.m021)
        sys.exit(0)

def check_requirements():
    req_py_version = (2,7)
    unsupported_py_version = (3,0)
    cur_version = sys.version_info

    if cur_version >= req_py_version:
        if cur_version < unsupported_py_version:
            pass;
        else:
            cnsl_message("invpyver")
    else:
        cnsl_message("invpyver")

    try:
        import curl
        import pycurl
    except ImportError:
        cnsl_message("nocurl")

def check_params(params):
    """
    Checking script parameters: if there is less or more than one param -- show help. If there's one param: check one’s consistency!
    """
    if len(params) != 2:
        cnsl_message("help")
    else:
        if str(params[1]).isdigit():
            pass;
        else:
            cnsl_message("help")

def start_log():
    log = open(curdir + log_file, 'w')
    log.write(umessages.m000 % version)
    log.close()

def set_username():
    return (uconfig.username, uconfig.password)

def connect():
    cookiefile = open(cookie[1], 'r+w')
    write_to_log(umessages.m025 % domain)
    cookie_txt = commands.getoutput('curl -c - -d "username=' + set_username()[0] + '&password=' + set_username()[1] + '&autologin=on&login=%C2%F5%EE%E4&redirect=index.php" "' + domain + '/forum/login.php" 2>>' + curdir + log_file )
    if cookie_txt.find("Cookie") != -1:
        # If it's -1, then there is no cookie!
        cookiefile.write(cookie_txt)
        print cookiefile.read()
        cnsl_message("login_ok")
    else:
        cnsl_message("login_failed")
        sys.exit(666)

def iteratorium(links_array, offset):
    """
    Links array -- array with links to topics containing torrents. Offset -- load parameter (for pages)
    """
    cnsl_message("pages", str((offset / 50) + 1))
    forum_page = commands.getoutput('curl -b ' + cookie[1] + ' "' + domain + '/forum/viewforum.php?f=' + sys.argv[1] + '&start=' + str(offset) + '" | iconv -f cp1251 -t utf-8')
    for line in forum_page.splitlines():
        if 'viewtopic.php' in line:
            if 'DL:' in line:
                for substring in line.split('"'):
                    if 'viewtopic.php' in substring:
                        links_array.append(substring.split('&')[0])
    # Check for the next page
    if forum_page.find("След.") != -1:
        iteratorium(links_array, offset + 50)
    clean_array = []
    for item in links_array:
        if item not in clean_array:
            clean_array.append(item)
    return clean_array

def download():
    """
    And now that's main part of the script. We need to:
    
        * iterate over each other page of the forum
        * collect all forum topics
        * collect all torrents from topics
        * check the integrity of downloaded stuff (or why we want to see the log?)
    The magic begins...
    """
    # Firstly, we need to download forum's startpage
    cnsl_message("parsing_started")
    startpage = commands.getoutput('curl -b ' + cookie[1] + ' ' + domain + '/forum/viewforum.php?f=' + sys.argv[1] + ' | iconv -f cp1251 -t utf-8')
    # Finding forum name :D
    for line in startpage.splitlines():
        if 'maintitle' in line:
            fname_raw = line
    forumname = fname_raw.split('>')[3].split('<')[0]
    cnsl_message("forum", forumname)
    # And now we start our "good iteratorium"
    topics = iteratorium([], 0)
    cnsl_message("found_topics", str(len(topics)))
    # Aaaand... the first real actions is here
    torrentsdir = "%s/%s" % (curdir, sys.argv[1])
    os.mkdir(torrentsdir)
    get_torrent(topics, torrentsdir, forumname)

def parse_topic(topic, forumname, topics, torrents_count, torrentsdir):
    topicpage = commands.getoutput('curl -b ' + cookie[1] + ' "' + domain + '/forum/' + topic + '" | iconv -f cp1251 -t utf-8')
    for line in topicpage.splitlines():
        if 'maintitle' in line:
            tname_raw = line
    topicname = tname_raw.split('>')[3].split('<')[0]
    for line in topicpage.splitlines():
        if 'не проверено модератором!' in line:
            cnsl_message("skip_non_approved", str(torrents_count), str(len(topics)), topicname, (domain + "/" + topic))
            return 340
    for line in topicpage.splitlines():
        if 'проверено модератором' in line:
             tdate_raw = line
    # fix for russian months names (dateutil doesn't parse it, damnnt)
    tdate_raw = tdate_raw.replace('Янв', '01').replace('Фев', '02').replace('Мар', '03').replace('Апр', '04').replace('Май', '05').replace('Июн', '06').replace('Июл', '07').replace('Авг', '08').replace('Сен', '09').replace('Окт', '10').replace('Ноя', '11').replace('Дек', '12')
    topicdate = dateutil.parser.parse(tdate_raw.split('>')[1].split('<')[0].split(' ',3)[3]).strftime("%Y-%m-%d")
    for line in topicpage.splitlines():
        if 'download.php' in line:
            for lvl2 in line.split('>'):
                if 'download.php' in lvl2:
                    dl_raw = lvl2
    downlink = dl_raw.split('"')[1]
    cnsl_message("downloading_torrent", str(torrents_count), str(len(topics)), topicname, (domain + "/" + topic), topicdate)
    os.chdir(torrentsdir)
    if not os.path.exists("./%s" % topicdate):
        os.makedirs("./%s" % topicdate)
    os.chdir("./%s" % topicdate)
    download_torrent(downlink)

def download_torrent(downlink):
    os.system('curl -b ' + cookie[1] + ' -O -J -L "' + domain + '/forum/' + downlink + '" 2>>' + curdir + log_file)

def get_torrent(topics, torrentsdir, forumname):
    cnsl_message("download_started")
    torrents_count = 0
    for topic in topics:
        torrents_count = torrents_count + 1
        parse_topic(topic, forumname, topics, torrents_count, torrentsdir)

def cleanup():
    os.remove(cookie[1])
    cnsl_message("done")


# That's da fuckin' magic here ;-)

check_params(sys.argv)
start_log()
check_requirements()

import curl, pycurl

cnsl_message("start")
connect()
download()
cleanup()