# -*- coding: utf-8 -*-

import re

from module.plugins.internal.CaptchaService import SolveMedia
from module.plugins.internal.SimpleHoster import SimpleHoster, parseFileInfo
from module.network.RequestFactory import getURL


def replace_eval(js_expr):
    return js_expr.replace(r'eval("', '').replace(r"\'", r"'").replace(r'\"', r'"')


def checkHTMLHeader(url):
    try:
        for _ in xrange(3):
            header = getURL(url, just_header=True)
            for line in header.splitlines():
                line = line.lower()
                if 'location' in line:
                    url = line.split(':', 1)[1].strip()
                    if 'error.php?errno=320' in url:
                        return url, 1
                    if not url.startswith('http://'):
                        url = 'http://www.mediafire.com' + url
                    break
                elif 'content-disposition' in line:
                    return url, 2
            else:
                break
    except:
        return url, 3

    return url, 0


def getInfo(urls):
    for url in urls:
        location, status = checkHTMLHeader(url)
        if status:
            file_info = (url, 0, status, url)
        else:
            file_info = parseFileInfo(MediafireCom, url, getURL(url, decode=True))
        yield file_info


class MediafireCom(SimpleHoster):
    __name__ = "MediafireCom"
    __type__ = "hoster"
    __version__ = "0.79"

    __pattern__ = r'http://(?:www\.)?mediafire\.com/(file/|(view/?|download.php)?\?)(\w{11}|\w{15})($|/)'

    __description__ = """Mediafire.com hoster plugin"""
    __license__ = "GPLv3"
    __authors__ = [("zoidberg", "zoidberg@mujmail.cz"),
                   ("stickell", "l.stickell@yahoo.it")]


    LINK_PATTERN = r'<div class="download_link"[^>]*(?:z-index:(?P<zindex>\d+))?[^>]*>\s*<a href="(?P<href>http://[^"]+)"'
    JS_KEY_PATTERN = r"DoShow\('mfpromo1'\);[^{]*{((\w+)='';.*?)eval\(\2\);"
    JS_ZMODULO_PATTERN = r"\('z-index'\)\) \% (\d+)\)\);"
    PAGE1_ACTION_PATTERN = r'<link rel="canonical" href="([^"]+)"/>'
    PASSWORD_PATTERN = r'<form name="form_password"'

    FILE_NAME_PATTERN = r'<META NAME="description" CONTENT="(?P<N>[^"]+)"/>'
    FILE_INFO_PATTERN = r"oFileSharePopup\.ald\('(?P<ID>[^']*)','(?P<N>[^']*)','(?P<S>[^']*)','','(?P<sha256>[^']*)'\)"
    OFFLINE_PATTERN = r'class="error_msg_title"> Invalid or Deleted File. </div>'


    def setup(self):
        self.multiDL = False

    def process(self, pyfile):
        pyfile.url = re.sub(r'/view/?\?', '/?', pyfile.url)

        self.url, result = checkHTMLHeader(pyfile.url)
        self.logDebug("Location (%d): %s" % (result, self.url))

        if result == 0:
            self.html = self.load(self.url, decode=True)
            self.checkCaptcha()
            self.multiDL = True
            self.check_data = self.getFileInfo()

            if self.account:
                self.handlePremium()
            else:
                self.handleFree()
        elif result == 1:
            self.offline()
        else:
            self.multiDL = True
            self.download(self.url, disposition=True)

    def handleFree(self):
        passwords = self.getPassword().splitlines()
        while self.PASSWORD_PATTERN in self.html:
            if len(passwords):
                password = passwords.pop(0)
                self.logInfo("Password protected link, trying " + password)
                self.html = self.load(self.url, post={"downloadp": password})
            else:
                self.fail("No or incorrect password")

        m = re.search(r'kNO = r"(http://.*?)";', self.html)
        if m is None:
            self.parseError("Download URL")
        download_url = m.group(1)
        self.logDebug("DOWNLOAD LINK:", download_url)

        self.download(download_url)

    def checkCaptcha(self):
        solvemedia = SolveMedia(self)

        captcha_key = solvemedia.detect_key()
        if captcha_key is None:
            self.parseError("SolveMedia key not found")

        captcha_challenge, captcha_response = solvemedia.challenge(captcha_key)
        self.html = self.load(self.url, post={"adcopy_challenge": captcha_challenge,
                                              "adcopy_response": captcha_response}, decode=True)