#!/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 . @author: RaNaN """ import pycurl from codecs import getincrementaldecoder, lookup, BOM_UTF8 from urllib import quote, urlencode from httplib import responses from logging import getLogger from cStringIO import StringIO from module.plugins.Plugin import Abort def myquote(url): return quote(url.encode('utf_8') if isinstance(url, unicode) else url, safe="%/:=&?~#+!$,;'@()*[]") def myurlencode(data): data = dict(data) return urlencode(dict((x.encode('utf_8') if isinstance(x, unicode) else x, \ y.encode('utf_8') if isinstance(y, unicode) else y ) for x, y in data.iteritems())) bad_headers = range(400, 404) + range(405, 418) + range(500, 506) class BadHeader(Exception): def __init__(self, code, content=""): Exception.__init__(self, "Bad server response: %s %s" % (code, responses[int(code)])) self.code = code self.content = content class HTTPRequest(): def __init__(self, cookies=None, options=None): self.c = pycurl.Curl() self.rep = StringIO() self.cj = cookies #cookiejar self.lastURL = None self.lastEffectiveURL = None self.abort = False self.code = 0 # last http code self.header = "" self.headers = [] #temporary request header self.initHandle() self.setInterface(options) self.c.setopt(pycurl.WRITEFUNCTION, self.write) self.c.setopt(pycurl.HEADERFUNCTION, self.writeHeader) self.log = getLogger("log") def initHandle(self): """ sets common options to curl handle """ self.c.setopt(pycurl.FOLLOWLOCATION, 1) self.c.setopt(pycurl.MAXREDIRS, 5) self.c.setopt(pycurl.CONNECTTIMEOUT, 30) self.c.setopt(pycurl.NOSIGNAL, 1) self.c.setopt(pycurl.NOPROGRESS, 1) if hasattr(pycurl, "AUTOREFERER"): self.c.setopt(pycurl.AUTOREFERER, 1) self.c.setopt(pycurl.SSL_VERIFYPEER, 0) self.c.setopt(pycurl.LOW_SPEED_TIME, 30) self.c.setopt(pycurl.LOW_SPEED_LIMIT, 5) #self.c.setopt(pycurl.VERBOSE, 1) self.c.setopt(pycurl.USERAGENT, "Mozilla/5.0 (Windows NT 6.1; Win64; x64;en; rv:5.0) Gecko/20110619 Firefox/5.0") if pycurl.version_info()[7]: self.c.setopt(pycurl.ENCODING, "gzip, deflate") self.c.setopt(pycurl.HTTPHEADER, ["Accept: */*", "Accept-Language: en-US,en", "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7", "Connection: keep-alive", "Keep-Alive: 300", "Expect:"]) def setInterface(self, options): interface, proxy, ipv6 = options["interface"], options["proxies"], options["ipv6"] if interface and interface.lower() != "none": self.c.setopt(pycurl.INTERFACE, str(interface)) if proxy: if proxy["type"] == "socks4": self.c.setopt(pycurl.PROXYTYPE, pycurl.PROXYTYPE_SOCKS4) elif proxy["type"] == "socks5": self.c.setopt(pycurl.PROXYTYPE, pycurl.PROXYTYPE_SOCKS5) else: self.c.setopt(pycurl.PROXYTYPE, pycurl.PROXYTYPE_HTTP) self.c.setopt(pycurl.PROXY, str(proxy["address"])) self.c.setopt(pycurl.PROXYPORT, proxy["port"]) if proxy["username"]: self.c.setopt(pycurl.PROXYUSERPWD, str("%s:%s" % (proxy["username"], proxy["password"]))) if ipv6: self.c.setopt(pycurl.IPRESOLVE, pycurl.IPRESOLVE_WHATEVER) else: self.c.setopt(pycurl.IPRESOLVE, pycurl.IPRESOLVE_V4) if "auth" in options: self.c.setopt(pycurl.USERPWD, str(options["auth"])) if "timeout" in options: self.c.setopt(pycurl.LOW_SPEED_TIME, options["timeout"]) def addCookies(self): """ put cookies from curl handle to cj """ if self.cj: self.cj.addCookies(self.c.getinfo(pycurl.INFO_COOKIELIST)) def getCookies(self): """ add cookies from cj to curl handle """ if self.cj: for c in self.cj.getCookies(): self.c.setopt(pycurl.COOKIELIST, c) return def clearCookies(self): self.c.setopt(pycurl.COOKIELIST, "") def setRequestContext(self, url, get, post, referer, cookies, multipart=False): """ sets everything needed for the request """ url = myquote(url) if get: get = urlencode(get) url = "%s?%s" % (url, get) self.c.setopt(pycurl.URL, url) self.c.lastUrl = url if post: self.c.setopt(pycurl.POST, 1) if not multipart: if type(post) == unicode: post = str(post) #unicode not allowed elif type(post) == str: pass else: post = myurlencode(post) self.c.setopt(pycurl.POSTFIELDS, post) else: post = [(x, y.encode('utf8') if type(y) == unicode else y ) for x, y in post.iteritems()] self.c.setopt(pycurl.HTTPPOST, post) else: self.c.setopt(pycurl.POST, 0) if referer and self.lastURL: self.c.setopt(pycurl.REFERER, str(self.lastURL)) if cookies: self.c.setopt(pycurl.COOKIEFILE, "") self.c.setopt(pycurl.COOKIEJAR, "") self.getCookies() def load(self, url, get={}, post={}, referer=True, cookies=True, just_header=False, multipart=False, decode=False): """ load and returns a given page """ self.setRequestContext(url, get, post, referer, cookies, multipart) self.header = "" self.c.setopt(pycurl.HTTPHEADER, self.headers) if just_header: self.c.setopt(pycurl.FOLLOWLOCATION, 0) self.c.setopt(pycurl.NOBODY, 1) self.c.perform() rep = self.header self.c.setopt(pycurl.FOLLOWLOCATION, 1) self.c.setopt(pycurl.NOBODY, 0) else: self.c.perform() rep = self.getResponse() self.c.setopt(pycurl.POSTFIELDS, "") self.lastEffectiveURL = self.c.getinfo(pycurl.EFFECTIVE_URL) self.code = self.verifyHeader() self.addCookies() if decode: rep = self.decodeResponse(rep) return rep def verifyHeader(self): """ raise an exceptions on bad headers """ code = int(self.c.getinfo(pycurl.RESPONSE_CODE)) if code in bad_headers: #404 will NOT raise an exception raise BadHeader(code, self.getResponse()) return code def checkHeader(self): """ check if header indicates failure""" return int(self.c.getinfo(pycurl.RESPONSE_CODE)) not in bad_headers def getResponse(self): """ retrieve response from string io """ if self.rep is None: return "" value = self.rep.getvalue() self.rep.close() self.rep = StringIO() return value def decodeResponse(self, rep): """ decode with correct encoding, relies on header """ header = self.header.splitlines() encoding = "utf8" # default encoding for line in header: line = line.lower().replace(" ", "") if not line.startswith("content-type:") or\ ("text" not in line and "application" not in line): continue none, delemiter, charset = line.rpartition("charset=") if delemiter: charset = charset.split(";") if charset: encoding = charset[0] try: #self.log.debug("Decoded %s" % encoding ) if lookup(encoding).name == 'utf-8' and rep.startswith(BOM_UTF8): encoding = 'utf-8-sig' decoder = getincrementaldecoder(encoding)("replace") rep = decoder.decode(rep, True) #TODO: html_unescape as default except LookupError: self.log.debug("No Decoder foung for %s" % encoding) except Exception: self.log.debug("Error when decoding string from %s." % encoding) return rep def write(self, buf): """ writes response """ if self.rep.tell() > 1000000 or self.abort: rep = self.getResponse() if self.abort: raise Abort() f = open("response.dump", "wb") f.write(rep) f.close() raise Exception("Loaded Url exceeded limit") self.rep.write(buf) def writeHeader(self, buf): """ writes header """ self.header += buf def putHeader(self, name, value): self.headers.append("%s: %s" % (name, value)) def clearHeaders(self): self.headers = [] def close(self): """ cleanup, unusable after this """ self.rep.close() if hasattr(self, "cj"): del self.cj if hasattr(self, "c"): self.c.close() del self.c if __name__ == "__main__": url = "http://pyload.org" c = HTTPRequest() print c.load(url)