diff options
Diffstat (limited to 'module/network/Request.py')
| -rwxr-xr-x | module/network/Request.py | 400 |
1 files changed, 400 insertions, 0 deletions
diff --git a/module/network/Request.py b/module/network/Request.py new file mode 100755 index 000000000..75a490b9f --- /dev/null +++ b/module/network/Request.py @@ -0,0 +1,400 @@ +#!/usr/bin/env python +# -*- 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: spoob + @author: RaNaN + @author: mkaay + @version: v0.3.2 +""" + +import base64 +import time +from os import sep, rename, stat +from os.path import exists, join +from shutil import move +import urllib +from cStringIO import StringIO +import pycurl + +from module.plugins.Plugin import Abort + +class Request: + def __init__(self, interface=None): + + self.dl_time = 0 + self.dl_finished = 0 + self.dl_size = 0 + self.dl_arrived = 0 + self.dl = False + + self.abort = False + + self.lastEffectiveURL = None + self.lastURL = None + self.auth = False + + self.timeout = 5 + + bufferBase = 1024 + bufferMulti = 4 + self.bufferSize = bufferBase*bufferMulti + self.canContinue = False + self.offset = 0 + + self.dl_speed = 0.0 + self.averageSpeed = 0.0 + self.averageSpeeds = [] + self.averageSpeedTime = 0.0 + self.averageSpeedCount = 0.0 + + self.speedLimitActive = False + self.maxSpeed = 0 + self.isSlow = False + self.cookieJar = None + self.interface = interface + + # change this for connection information + self.debug = False + + self.init_curl() + + def set_timeout(self, timeout): + self.timeout = int(timeout) + + def init_curl(self): + self.rep = StringIO() + self.header = "" + + self.pycurl = pycurl.Curl() + self.pycurl.setopt(pycurl.FOLLOWLOCATION, 1) + self.pycurl.setopt(pycurl.MAXREDIRS, 5) + self.pycurl.setopt(pycurl.TIMEOUT, (self.timeout*3600)) + self.pycurl.setopt(pycurl.CONNECTTIMEOUT, 30) + self.pycurl.setopt(pycurl.NOSIGNAL, 1) + self.pycurl.setopt(pycurl.NOPROGRESS, 0) + self.pycurl.setopt(pycurl.PROGRESSFUNCTION, self.progress) + self.pycurl.setopt(pycurl.AUTOREFERER, 1) + self.pycurl.setopt(pycurl.HEADERFUNCTION, self.write_header) + self.pycurl.setopt(pycurl.BUFFERSIZE, self.bufferSize) + self.pycurl.setopt(pycurl.SSL_VERIFYPEER, 0) + + if self.debug: + self.pycurl.setopt(pycurl.VERBOSE, 1) + if self.interface and self.interface.lower() != "none": + self.pycurl.setopt(pycurl.INTERFACE, self.interface) + + + self.pycurl.setopt(pycurl.USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; en; rv:1.9.0.8) Gecko/2009032609 Firefox/3.0.10") + if pycurl.version_info()[7]: + self.pycurl.setopt(pycurl.ENCODING, "gzip, deflate") + self.pycurl.setopt(pycurl.HTTPHEADER, ["Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8", + "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7", + "Connection: keep-alive", + "Keep-Alive: 300"]) + + def setCookieJar(self, j): + self.cookieJar = j + + def addCookies(self): + if self.cookieJar: + self.cookieJar.addCookies(self.pycurl.getinfo(pycurl.INFO_COOKIELIST)) + return + + def getCookies(self): + if self.cookieJar: + for c in self.cookieJar.getCookies(): + self.pycurl.setopt(pycurl.COOKIELIST, c) + return + + def getCookie(self, name): + if self.cookieJar: + return self.cookieJar.getCookie(name) + return None + + def load(self, url, get={}, post={}, ref=True, cookies=True, just_header=False, no_post_encode=False): + + self.pycurl.setopt(pycurl.NOPROGRESS, 1) + + url = str(url) + + if post: + if not no_post_encode: + post = urllib.urlencode(post) + else: + post = None + + if get: + get = urllib.urlencode(get) + url = "%s?%s" % (url, get) + else: + get = "" + + self.pycurl.setopt(pycurl.URL, url) + self.pycurl.setopt(pycurl.WRITEFUNCTION, self.rep.write) + + if cookies: + self.curl_enable_cookies() + self.getCookies() + + if post: + self.pycurl.setopt(pycurl.POSTFIELDS, post) + + if ref and self.lastURL is not None: + self.pycurl.setopt(pycurl.REFERER, self.lastURL) + + if just_header: + self.pycurl.setopt(pycurl.NOBODY, 1) + self.pycurl.perform() + self.lastEffectiveURL = self.pycurl.getinfo(pycurl.EFFECTIVE_URL) + self.pycurl.setopt(pycurl.NOPROGRESS, 0) + self.pycurl.setopt(pycurl.NOBODY, 0) + return self.header + + self.pycurl.perform() + + self.lastEffectiveURL = self.pycurl.getinfo(pycurl.EFFECTIVE_URL) + self.addCookies() + + #reset progress + + self.dl_time = 0 + self.dl_finished = 0 + self.dl_size = 0 + self.dl_arrived = 0 + + self.lastURL = url + header = self.get_header() + + return self.get_rep() + + def curl_enable_cookies(self): + self.pycurl.setopt(pycurl.COOKIEFILE, "") + self.pycurl.setopt(pycurl.COOKIEJAR, "") + + def add_auth(self, user, pw): + + self.auth = True + self.user = user + self.pw = pw + + upwstr = str("%s:%s" % (user,pw)) + self.pycurl.setopt(pycurl.HTTPHEADER, ['Authorization: Basic ' + base64.encodestring(upwstr)[:-1]]) + self.pycurl.setopt(pycurl.USERPWD, upwstr) + self.pycurl.setopt(pycurl.HTTPAUTH, pycurl.HTTPAUTH_ANY) + + def clearCookies(self): + self.pycurl.setopt(pycurl.COOKIELIST, "") + + def add_proxy(self, protocol, adress): + # @TODO: pycurl proxy protocol selection + self.pycurl.setopt(pycurl.PROXY, adress.split(":")[0]) + self.pycurl.setopt(pycurl.PROXYPORT, adress.split(":")[1]) + + def download(self, url, file_name, folder, get={}, post={}, ref=True, cookies=True, no_post_encode=False): + + url = str(url) + + self.pycurl.setopt(pycurl.NOPROGRESS, 0) + + if post: + if not no_post_encode: + post = urllib.urlencode(post) + else: + post = None + + if get: + get = urllib.urlencode(get) + url = "%s?%s" % (url, get) + else: + get = "" + + file_temp = self.get_free_name(folder,file_name) + ".part" + + self.fp = open(file_temp, 'wb' if not self.canContinue else 'ab') + + partSize = self.fp.tell() + + self.init_curl() + + self.pycurl.setopt(pycurl.URL, url) + + if self.canContinue: + self.offset = stat(file_temp).st_size + self.pycurl.setopt(pycurl.RESUME_FROM, self.offset) + + self.dl_arrived = self.offset + + if cookies: + self.curl_enable_cookies() + self.getCookies() + + if post: + self.pycurl.setopt(pycurl.POSTFIELDS, post) + + if self.auth: + self.add_auth(self.user, self.pw) + + if ref and self.lastURL is not None: + self.pycurl.setopt(pycurl.REFERER, self.lastURL) + + self.dl_time = time.time() + self.dl = True + + self.chunkSize = 0 + self.chunkRead = 0 + self.subStartTime = 0 + self.maxChunkSize = 0 + + def restLimit(): + subTime = time.time() - self.subStartTime + if subTime <= 1: + if self.speedLimitActive: + return self.maxChunkSize + else: + return -1 + else: + self.updateCurrentSpeed(float(self.chunkRead/1024) / subTime) + + self.subStartTime = time.time() + self.chunkRead = 0 + if self.maxSpeed > 0: + self.maxChunkSize = self.maxSpeed + else: + self.maxChunkSize = 0 + return 0 + + def writefunc(buf): + if self.abort: + return False + chunkSize = len(buf) + while chunkSize > restLimit() > -1: + time.sleep(0.05) + self.maxChunkSize -= chunkSize + self.fp.write(buf) + self.chunkRead += chunkSize + self.dl_arrived += chunkSize + + self.pycurl.setopt(pycurl.WRITEFUNCTION, writefunc) + + try: + self.pycurl.perform() + except Exception, e: + code, msg = e + if not code == 23: + raise Exception, e + finally: + self.dl = False + self.dl_finished = time.time() + + self.addCookies() + self.fp.close() + + if self.abort: raise Abort + + free_name = self.get_free_name(folder, file_name) + move(file_temp, free_name) + + #@TODO content disposition + + #return free_name + + def updateCurrentSpeed(self, speed): + self.dl_speed = speed + if self.averageSpeedTime + 10 < time.time(): + self.averageSpeeds = [] + self.averageSpeeds.append(self.averageSpeed) + self.averageSpeeds.append(speed) + self.averageSpeed = (speed + self.averageSpeed)/2 + self.averageSpeedTime = time.time() + self.averageSpeedCount = 2 + else: + self.averageSpeeds.append(speed) + self.averageSpeedCount += 1 + allspeed = 0.0 + for s in self.averageSpeeds: + allspeed += s + self.averageSpeed = allspeed / self.averageSpeedCount + + def write_header(self, string): + self.header += string + + def get_rep(self): + value = self.rep.getvalue() + self.rep.close() + self.rep = StringIO() + return value + + def get_header(self): + h = self.header + self.header = "" + return h + + def get_speed(self): + try: + return self.dl_speed + except: + return 0 + + def get_ETA(self): + try: + return (self.dl_size - self.dl_arrived) / (self.dl_arrived / (time.time() - self.dl_time)) + except: + return 0 + + def bytes_left(self): + return (self.dl_size - self.dl_arrived) + + def progress(self, dl_t, dl_d, up_t, up_d): + if self.abort: + return False + self.dl_arrived = int(dl_d) + self.dl_size = int(dl_t) + + def get_free_name(self, folder, file_name): + file_count = 0 + file_name = join(folder, file_name) + while exists(file_name): + file_count += 1 + if "." in file_name: + file_split = file_name.split(".") + temp_name = "%s-%i.%s" % (".".join(file_split[:-1]), file_count, file_split[-1]) + else: + temp_name = "%s-%i" % (file_name, file_count) + if not exists(temp_name): + file_name = temp_name + return file_name + + def __del__(self): + self.clean() + + def clean(self): + try: + self.pycurl.close() + except: + pass + +def getURL(url, get={}, post={}): + """ + currently used for update check + """ + req = Request() + c = req.load(url, get, post) + req.pycurl.close() + return c + +if __name__ == "__main__": + import doctest + doctest.testmod() |