#!/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: RaNaN
"""
import pycurl
from codecs import getincrementaldecoder
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, safe="%/:=&?~#+!$,;'@()*[]")
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["interface"], options["proxies"], options["ipv6"])
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"])
def setInterface(self, interface, proxy, ipv6=False):
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)
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(str(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 = urlencode(post)
self.c.setopt(pycurl.POSTFIELDS, post)
else:
post = [(x, str(quote(y)) if type(y) in (str, 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 range(400,404) or code in range(405,418) or code in range(500,506):
#404 will NOT raise an exception
raise BadHeader(code, self.getResponse())
return code
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 )
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)