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HTTPRequest.py
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306 lines (231 loc) · 9.79 KB
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#!/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, 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)