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

import re

from urllib import unquote
from urlparse import urlparse

from module.network.HTTPRequest import BadHeader
from module.plugins.internal.SimpleHoster import create_getInfo
from module.plugins.Hoster import Hoster


class BasePlugin(Hoster):
    __name__    = "BasePlugin"
    __type__    = "hoster"
    __version__ = "0.24"

    __pattern__ = r'^unmatchable$'

    __description__ = """Base Plugin when any other didnt fit"""
    __license__     = "GPLv3"
    __authors__     = [("RaNaN", "RaNaN@pyload.org"),
                       ("Walter Purcaro", "vuolter@gmail.com")]


    @classmethod
    def getInfo(cls, url="", html=""):  #@TODO: Move to hoster class in 0.4.10
        return {'name': urlparse(url).path.split('/')[-1] or _("Unknown"), 'size': 0, 'status': 3 if url else 1, 'url': url or ""}


    def setup(self):
        self.chunkLimit = -1
        self.resumeDownload = True


    def process(self, pyfile):
        """main function"""

        pyfile.name = self.getInfo(pyfile.url)['name']

        if not pyfile.url.startswith("http"):
            self.fail(_("No plugin matched"))

        for _i in xrange(5):
            try:
                self.downloadFile(pyfile)

            except BadHeader, e:
                if e.code is 404:
                    self.offline()

                elif e.code in (401, 403):
                    self.logDebug("Auth required")

                    account = self.core.accountManager.getAccountPlugin('Http')
                    servers = [x['login'] for x in account.getAllAccounts()]
                    server  = urlparse(pyfile.url).netloc

                    if server in servers:
                        self.logDebug("Logging on to %s" % server)
                        self.req.addAuth(account.accounts[server]['password'])
                    else:
                        for pwd in pyfile.package().password.splitlines():
                            if ":" in pwd:
                                self.req.addAuth(pwd.strip())
                                break
                        else:
                            self.fail(_("Authorization required (username:password)"))
                else:
                    self.fail(e)
            else:
                break
        else:
            self.fail(_("No file downloaded"))  #@TODO: Move to hoster class (check if self.lastDownload) in 0.4.10

        # if self.checkDownload({'empty': re.compile(r"^$")}) is "empty":
            # self.fail(_("Empty file"))


    def downloadFile(self, pyfile):
        url = pyfile.url

        for i in xrange(1, 7):  #@TODO: retrieve the pycurl.MAXREDIRS value set by req
            header = self.load(url, ref=True, cookies=True, just_header=True, decode=True)

            if 'location' not in header or not header['location']:
                if 'code' in header and header['code'] not in (200, 201, 203, 206):
                    self.fail(_("File not found"), _("HTTP status code: %d") % header['code'])
                else:
                    break

            location = header['location']

            self.logDebug("Redirect #%d to: %s" % (i, location))

            base = re.match(r'https?://[^/]+', url).group(0)

            if location.startswith("http"):
                url = location

            elif location.startswith("/"):
                url = base + unquote(location)

            else:
                url = "%s/%s" % (base, unquote(location))
        else:
            self.fail(_("Too many redirects"))

        self.download(url, disposition=True)