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-rw-r--r--external_libs/python/dpkt-1.8.6.2/dpkt/http.py259
1 files changed, 259 insertions, 0 deletions
diff --git a/external_libs/python/dpkt-1.8.6.2/dpkt/http.py b/external_libs/python/dpkt-1.8.6.2/dpkt/http.py
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+++ b/external_libs/python/dpkt-1.8.6.2/dpkt/http.py
@@ -0,0 +1,259 @@
+# $Id: http.py 86 2013-03-05 19:25:19Z andrewflnr@gmail.com $
+# -*- coding: utf-8 -*-
+"""Hypertext Transfer Protocol."""
+
+import cStringIO
+import dpkt
+
+
+def parse_headers(f):
+ """Return dict of HTTP headers parsed from a file object."""
+ d = {}
+ while 1:
+ line = f.readline()
+ if not line:
+ raise dpkt.NeedData('premature end of headers')
+ line = line.strip()
+ if not line:
+ break
+ l = line.split(':', 1)
+ if len(l[0].split()) != 1:
+ raise dpkt.UnpackError('invalid header: %r' % line)
+ k = l[0].lower()
+ v = len(l) != 1 and l[1].lstrip() or ''
+ if k in d:
+ if not type(d[k]) is list:
+ d[k] = [d[k]]
+ d[k].append(v)
+ else:
+ d[k] = v
+ return d
+
+
+def parse_body(f, headers):
+ """Return HTTP body parsed from a file object, given HTTP header dict."""
+ if headers.get('transfer-encoding', '').lower() == 'chunked':
+ l = []
+ found_end = False
+ while 1:
+ try:
+ sz = f.readline().split(None, 1)[0]
+ except IndexError:
+ raise dpkt.UnpackError('missing chunk size')
+ n = int(sz, 16)
+ if n == 0:
+ found_end = True
+ buf = f.read(n)
+ if f.readline().strip():
+ break
+ if n and len(buf) == n:
+ l.append(buf)
+ else:
+ break
+ if not found_end:
+ raise dpkt.NeedData('premature end of chunked body')
+ body = ''.join(l)
+ elif 'content-length' in headers:
+ n = int(headers['content-length'])
+ body = f.read(n)
+ if len(body) != n:
+ raise dpkt.NeedData('short body (missing %d bytes)' % (n - len(body)))
+ elif 'content-type' in headers:
+ body = f.read()
+ else:
+ # XXX - need to handle HTTP/0.9
+ body = ''
+ return body
+
+
+class Message(dpkt.Packet):
+ """Hypertext Transfer Protocol headers + body."""
+ __metaclass__ = type
+ __hdr_defaults__ = {}
+ headers = None
+ body = None
+
+ def __init__(self, *args, **kwargs):
+ if args:
+ self.unpack(args[0])
+ else:
+ self.headers = {}
+ self.body = ''
+ for k, v in self.__hdr_defaults__.iteritems():
+ setattr(self, k, v)
+ for k, v in kwargs.iteritems():
+ setattr(self, k, v)
+
+ def unpack(self, buf):
+ f = cStringIO.StringIO(buf)
+ # Parse headers
+ self.headers = parse_headers(f)
+ # Parse body
+ self.body = parse_body(f, self.headers)
+ # Save the rest
+ self.data = f.read()
+
+ def pack_hdr(self):
+ return ''.join(['%s: %s\r\n' % t for t in self.headers.iteritems()])
+
+ def __len__(self):
+ return len(str(self))
+
+ def __str__(self):
+ return '%s\r\n%s' % (self.pack_hdr(), self.body)
+
+
+class Request(Message):
+ """Hypertext Transfer Protocol Request."""
+ __hdr_defaults__ = {
+ 'method': 'GET',
+ 'uri': '/',
+ 'version': '1.0',
+ }
+ __methods = dict.fromkeys((
+ 'GET', 'PUT', 'ICY',
+ 'COPY', 'HEAD', 'LOCK', 'MOVE', 'POLL', 'POST',
+ 'BCOPY', 'BMOVE', 'MKCOL', 'TRACE', 'LABEL', 'MERGE',
+ 'DELETE', 'SEARCH', 'UNLOCK', 'REPORT', 'UPDATE', 'NOTIFY',
+ 'BDELETE', 'CONNECT', 'OPTIONS', 'CHECKIN',
+ 'PROPFIND', 'CHECKOUT', 'CCM_POST',
+ 'SUBSCRIBE', 'PROPPATCH', 'BPROPFIND',
+ 'BPROPPATCH', 'UNCHECKOUT', 'MKACTIVITY',
+ 'MKWORKSPACE', 'UNSUBSCRIBE', 'RPC_CONNECT',
+ 'VERSION-CONTROL',
+ 'BASELINE-CONTROL'
+ ))
+ __proto = 'HTTP'
+
+ def unpack(self, buf):
+ f = cStringIO.StringIO(buf)
+ line = f.readline()
+ l = line.strip().split()
+ if len(l) < 2:
+ raise dpkt.UnpackError('invalid request: %r' % line)
+ if l[0] not in self.__methods:
+ raise dpkt.UnpackError('invalid http method: %r' % l[0])
+ if len(l) == 2:
+ # HTTP/0.9 does not specify a version in the request line
+ self.version = '0.9'
+ else:
+ if not l[2].startswith(self.__proto):
+ raise dpkt.UnpackError('invalid http version: %r' % l[2])
+ self.version = l[2][len(self.__proto) + 1:]
+ self.method = l[0]
+ self.uri = l[1]
+ Message.unpack(self, f.read())
+
+ def __str__(self):
+ return '%s %s %s/%s\r\n' % (self.method, self.uri, self.__proto,
+ self.version) + Message.__str__(self)
+
+
+class Response(Message):
+ """Hypertext Transfer Protocol Response."""
+ __hdr_defaults__ = {
+ 'version': '1.0',
+ 'status': '200',
+ 'reason': 'OK'
+ }
+ __proto = 'HTTP'
+
+ def unpack(self, buf):
+ f = cStringIO.StringIO(buf)
+ line = f.readline()
+ l = line.strip().split(None, 2)
+ if len(l) < 2 or not l[0].startswith(self.__proto) or not l[1].isdigit():
+ raise dpkt.UnpackError('invalid response: %r' % line)
+ self.version = l[0][len(self.__proto) + 1:]
+ self.status = l[1]
+ self.reason = l[2] if len(l) > 2 else ''
+ Message.unpack(self, f.read())
+
+ def __str__(self):
+ return '%s/%s %s %s\r\n' % (self.__proto, self.version, self.status,
+ self.reason) + Message.__str__(self)
+
+
+def test_parse_request():
+ s = """POST /main/redirect/ab/1,295,,00.html HTTP/1.0\r\nReferer: http://www.email.com/login/snap/login.jhtml\r\nConnection: Keep-Alive\r\nUser-Agent: Mozilla/4.75 [en] (X11; U; OpenBSD 2.8 i386; Nav)\r\nHost: ltd.snap.com\r\nAccept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, image/png, */*\r\nAccept-Encoding: gzip\r\nAccept-Language: en\r\nAccept-Charset: iso-8859-1,*,utf-8\r\nContent-type: application/x-www-form-urlencoded\r\nContent-length: 61\r\n\r\nsn=em&mn=dtest4&pw=this+is+atest&fr=true&login=Sign+in&od=www"""
+ r = Request(s)
+ assert r.method == 'POST'
+ assert r.uri == '/main/redirect/ab/1,295,,00.html'
+ assert r.body == 'sn=em&mn=dtest4&pw=this+is+atest&fr=true&login=Sign+in&od=www'
+ assert r.headers['content-type'] == 'application/x-www-form-urlencoded'
+ try:
+ Request(s[:60])
+ assert 'invalid headers parsed!'
+ except dpkt.UnpackError:
+ pass
+
+
+def test_format_request():
+ r = Request()
+ assert str(r) == 'GET / HTTP/1.0\r\n\r\n'
+ r.method = 'POST'
+ r.uri = '/foo/bar/baz.html'
+ r.headers['content-type'] = 'text/plain'
+ r.headers['content-length'] = '5'
+ r.body = 'hello'
+ s = str(r)
+ assert s.startswith('POST /foo/bar/baz.html HTTP/1.0\r\n')
+ assert s.endswith('\r\n\r\nhello')
+ assert '\r\ncontent-length: 5\r\n' in s
+ assert '\r\ncontent-type: text/plain\r\n' in s
+ r = Request(str(r))
+ assert str(r) == s
+
+
+def test_chunked_response():
+ s = """HTTP/1.1 200 OK\r\nCache-control: no-cache\r\nPragma: no-cache\r\nContent-Type: text/javascript; charset=utf-8\r\nContent-Encoding: gzip\r\nTransfer-Encoding: chunked\r\nSet-Cookie: S=gmail=agg:gmail_yj=v2s:gmproxy=JkU; Domain=.google.com; Path=/\r\nServer: GFE/1.3\r\nDate: Mon, 12 Dec 2005 22:33:23 GMT\r\n\r\na\r\n\x1f\x8b\x08\x00\x00\x00\x00\x00\x00\x00\r\n152\r\nm\x91MO\xc4 \x10\x86\xef\xfe\n\x82\xc9\x9eXJK\xe9\xb6\xee\xc1\xe8\x1e6\x9e4\xf1\xe0a5\x86R\xda\x12Yh\x80\xba\xfa\xef\x85\xee\x1a/\xf21\x99\x0c\xef0<\xc3\x81\xa0\xc3\x01\xe6\x10\xc1<\xa7eYT5\xa1\xa4\xac\xe1\xdb\x15:\xa4\x9d\x0c\xfa5K\x00\xf6.\xaa\xeb\x86\xd5y\xcdHY\x954\x8e\xbc*h\x8c\x8e!L7Y\xe6\'\xeb\x82WZ\xcf>8\x1ed\x87\x851X\xd8c\xe6\xbc\x17Z\x89\x8f\xac \x84e\xde\n!]\x96\x17i\xb5\x02{{\xc2z0\x1e\x0f#7\x9cw3v\x992\x9d\xfc\xc2c8\xea[/EP\xd6\xbc\xce\x84\xd0\xce\xab\xf7`\'\x1f\xacS\xd2\xc7\xd2\xfb\x94\x02N\xdc\x04\x0f\xee\xba\x19X\x03TtW\xd7\xb4\xd9\x92\n\xbcX\xa7;\xb0\x9b\'\x10$?F\xfd\xf3CzPt\x8aU\xef\xb8\xc8\x8b-\x18\xed\xec<\xe0\x83\x85\x08!\xf8"[\xb0\xd3j\x82h\x93\xb8\xcf\xd8\x9b\xba\xda\xd0\x92\x14\xa4a\rc\reM\xfd\x87=X;h\xd9j;\xe0db\x17\xc2\x02\xbd\xb0F\xc2in#\xfb:\xb6\xc4x\x15\xd6\x9f\x8a\xaf\xcf)\x0b^\xbc\xe7i\x11\x80\x8b\x00D\x01\xd8/\x82x\xf6\xd8\xf7J(\xae/\x11p\x1f+\xc4p\t:\xfe\xfd\xdf\xa3Y\xfa\xae4\x7f\x00\xc5\xa5\x95\xa1\xe2\x01\x00\x00\r\n0\r\n\r\n"""
+ r = Response(s)
+ assert r.version == '1.1'
+ assert r.status == '200'
+ assert r.reason == 'OK'
+
+
+def test_multicookie_response():
+ s = """HTTP/1.x 200 OK\r\nSet-Cookie: first_cookie=cookie1; path=/; domain=.example.com\r\nSet-Cookie: second_cookie=cookie2; path=/; domain=.example.com\r\nContent-Length: 0\r\n\r\n"""
+ r = Response(s)
+ assert type(r.headers['set-cookie']) is list
+ assert len(r.headers['set-cookie']) == 2
+
+
+def test_noreason_response():
+ s = """HTTP/1.1 200 \r\n\r\n"""
+ r = Response(s)
+ assert r.reason == ''
+ assert str(r) == s
+
+
+def test_request_version():
+ s = """GET / HTTP/1.0\r\n\r\n"""
+ r = Request(s)
+ assert r.method == 'GET'
+ assert r.uri == '/'
+ assert r.version == '1.0'
+
+ s = """GET /\r\n\r\n"""
+ r = Request(s)
+ assert r.method == 'GET'
+ assert r.uri == '/'
+ assert r.version == '0.9'
+
+ s = """GET / CHEESE/1.0\r\n\r\n"""
+ try:
+ Request(s)
+ assert "invalid protocol version parsed!"
+ except:
+ pass
+
+
+if __name__ == '__main__':
+ # Runs all the test associated with this class/file
+ test_parse_request()
+ test_format_request()
+ test_chunked_response()
+ test_multicookie_response()
+ test_noreason_response()
+ test_request_version()
+ print 'Tests Successful...'