traverseda
/
cpython
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
cpython/Lib/httplib.py

273 lines
7.8 KiB
Python
Raw Normal View History

Doc strings by Mitch Chapman (with a little reformatting). Also reformatted the whole module with 4 spaces and no tabs.
1997-12-08 20:12:23 -04:00
"""HTTP client class
See the following URL for a description of the HTTP/1.0 protocol:
http://www.w3.org/hypertext/WWW/Protocols/
(I actually implemented it from a much earlier draft.)
Example:
>>> from httplib import HTTP
>>> h = HTTP('www.python.org')
>>> h.putrequest('GET', '/index.html')
>>> h.putheader('Accept', 'text/html')
>>> h.putheader('Accept', 'text/plain')
>>> h.endheaders()
>>> errcode, errmsg, headers = h.getreply()
>>> if errcode == 200:
... f = h.getfile()
... print f.read() # Print the raw HTML
...
<HEAD>
<TITLE>Python Language Home Page</TITLE>
[...many more lines...]
>>>
Note that an HTTP object is used for a single request -- to issue a
second request to the same server, you create a new HTTP object.
(This is in accordance with the protocol, which uses a new TCP
connection for each request.)
"""
Towards a standard access mechanism for URLs.
1994-02-21 12:36:04 -04:00
OpenSSL support. This is based on patches for a version of SSLeay by Brian E Gallew, which were improved and adapted to OpenSSL 0.9.4 by Laszlo Kovacs of HP. Both have kindly given permission to include the patches in the Python distribution. Final formatting by GvR.
1999-12-07 17:37:17 -04:00
import os
Towards a standard access mechanism for URLs.
1994-02-21 12:36:04 -04:00
import socket
import string
use mimetools; add close()
1995-08-07 17:13:02 -03:00
import mimetools
Towards a standard access mechanism for URLs.
1994-02-21 12:36:04 -04:00
OpenSSL support. This is based on patches for a version of SSLeay by Brian E Gallew, which were improved and adapted to OpenSSL 0.9.4 by Laszlo Kovacs of HP. Both have kindly given permission to include the patches in the Python distribution. Final formatting by GvR.
1999-12-07 17:37:17 -04:00
try:
from cStringIO import StringIO
except:
from StringIO import StringIO
Towards a standard access mechanism for URLs.
1994-02-21 12:36:04 -04:00
HTTP_VERSION = 'HTTP/1.0'
HTTP_PORT = 80
OpenSSL support. This is based on patches for a version of SSLeay by Brian E Gallew, which were improved and adapted to OpenSSL 0.9.4 by Laszlo Kovacs of HP. Both have kindly given permission to include the patches in the Python distribution. Final formatting by GvR.
1999-12-07 17:37:17 -04:00
HTTPS_PORT = 443
class FakeSocket:
def __init__(self, sock, ssl):
self.__sock = sock
self.__ssl = ssl
return
def makefile(self, mode): # hopefully, never have to write
msgbuf = ""
while 1:
try:
msgbuf = msgbuf + self.__ssl.read()
except socket.sslerror, msg:
break
return StringIO(msgbuf)
def send(self, stuff, flags = 0):
return self.__ssl.write(stuff)
def recv(self, len = 1024, flags = 0):
return self.__ssl.read(len)
def __getattr__(self, attr):
return getattr(self.__sock, attr)
Towards a standard access mechanism for URLs.
1994-02-21 12:36:04 -04:00
class HTTP:
Doc strings by Mitch Chapman (with a little reformatting). Also reformatted the whole module with 4 spaces and no tabs.
1997-12-08 20:12:23 -04:00
"""This class manages a connection to an HTTP server."""
OpenSSL support. This is based on patches for a version of SSLeay by Brian E Gallew, which were improved and adapted to OpenSSL 0.9.4 by Laszlo Kovacs of HP. Both have kindly given permission to include the patches in the Python distribution. Final formatting by GvR.
1999-12-07 17:37:17 -04:00
def __init__(self, host = '', port = 0, **x509):
Doc strings by Mitch Chapman (with a little reformatting). Also reformatted the whole module with 4 spaces and no tabs.
1997-12-08 20:12:23 -04:00
"""Initialize a new instance.
If specified, `host' is the name of the remote host to which
to connect. If specified, `port' specifies the port to which
to connect. By default, httplib.HTTP_PORT is used.
"""
OpenSSL support. This is based on patches for a version of SSLeay by Brian E Gallew, which were improved and adapted to OpenSSL 0.9.4 by Laszlo Kovacs of HP. Both have kindly given permission to include the patches in the Python distribution. Final formatting by GvR.
1999-12-07 17:37:17 -04:00
self.key_file = x509.get('key_file')
self.cert_file = x509.get('cert_file')
Doc strings by Mitch Chapman (with a little reformatting). Also reformatted the whole module with 4 spaces and no tabs.
1997-12-08 20:12:23 -04:00
self.debuglevel = 0
self.file = None
if host: self.connect(host, port)
OpenSSL support. This is based on patches for a version of SSLeay by Brian E Gallew, which were improved and adapted to OpenSSL 0.9.4 by Laszlo Kovacs of HP. Both have kindly given permission to include the patches in the Python distribution. Final formatting by GvR.
1999-12-07 17:37:17 -04:00
Doc strings by Mitch Chapman (with a little reformatting). Also reformatted the whole module with 4 spaces and no tabs.
1997-12-08 20:12:23 -04:00
def set_debuglevel(self, debuglevel):
"""Set the debug output level.
A non-false value results in debug messages for connection and
for all messages sent to and received from the server.
"""
self.debuglevel = debuglevel
OpenSSL support. This is based on patches for a version of SSLeay by Brian E Gallew, which were improved and adapted to OpenSSL 0.9.4 by Laszlo Kovacs of HP. Both have kindly given permission to include the patches in the Python distribution. Final formatting by GvR.
1999-12-07 17:37:17 -04:00
Doc strings by Mitch Chapman (with a little reformatting). Also reformatted the whole module with 4 spaces and no tabs.
1997-12-08 20:12:23 -04:00
def connect(self, host, port = 0):
"""Connect to a host on a given port.
OpenSSL support. This is based on patches for a version of SSLeay by Brian E Gallew, which were improved and adapted to OpenSSL 0.9.4 by Laszlo Kovacs of HP. Both have kindly given permission to include the patches in the Python distribution. Final formatting by GvR.
1999-12-07 17:37:17 -04:00
Doc strings by Mitch Chapman (with a little reformatting). Also reformatted the whole module with 4 spaces and no tabs.
1997-12-08 20:12:23 -04:00
Note: This method is automatically invoked by __init__,
if a host is specified during instantiation.
"""
if not port:
i = string.find(host, ':')
if i >= 0:
host, port = host[:i], host[i+1:]
try: port = string.atoi(port)
except string.atoi_error:
raise socket.error, "nonnumeric port"
if not port: port = HTTP_PORT
self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
if self.debuglevel > 0: print 'connect:', (host, port)
self.sock.connect(host, port)
OpenSSL support. This is based on patches for a version of SSLeay by Brian E Gallew, which were improved and adapted to OpenSSL 0.9.4 by Laszlo Kovacs of HP. Both have kindly given permission to include the patches in the Python distribution. Final formatting by GvR.
1999-12-07 17:37:17 -04:00
Doc strings by Mitch Chapman (with a little reformatting). Also reformatted the whole module with 4 spaces and no tabs.
1997-12-08 20:12:23 -04:00
def send(self, str):
"""Send `str' to the server."""
if self.debuglevel > 0: print 'send:', `str`
self.sock.send(str)
OpenSSL support. This is based on patches for a version of SSLeay by Brian E Gallew, which were improved and adapted to OpenSSL 0.9.4 by Laszlo Kovacs of HP. Both have kindly given permission to include the patches in the Python distribution. Final formatting by GvR.
1999-12-07 17:37:17 -04:00
Doc strings by Mitch Chapman (with a little reformatting). Also reformatted the whole module with 4 spaces and no tabs.
1997-12-08 20:12:23 -04:00
def putrequest(self, request, selector):
"""Send a request to the server.
`request' specifies an HTTP request method, e.g. 'GET'.
`selector' specifies the object being requested, e.g.
'/index.html'.
"""
if not selector: selector = '/'
str = '%s %s %s\r\n' % (request, selector, HTTP_VERSION)
self.send(str)
OpenSSL support. This is based on patches for a version of SSLeay by Brian E Gallew, which were improved and adapted to OpenSSL 0.9.4 by Laszlo Kovacs of HP. Both have kindly given permission to include the patches in the Python distribution. Final formatting by GvR.
1999-12-07 17:37:17 -04:00
Doc strings by Mitch Chapman (with a little reformatting). Also reformatted the whole module with 4 spaces and no tabs.
1997-12-08 20:12:23 -04:00
def putheader(self, header, *args):
"""Send a request header line to the server.
For example: h.putheader('Accept', 'text/html')
"""
str = '%s: %s\r\n' % (header, string.joinfields(args,'\r\n\t'))
self.send(str)
OpenSSL support. This is based on patches for a version of SSLeay by Brian E Gallew, which were improved and adapted to OpenSSL 0.9.4 by Laszlo Kovacs of HP. Both have kindly given permission to include the patches in the Python distribution. Final formatting by GvR.
1999-12-07 17:37:17 -04:00
Doc strings by Mitch Chapman (with a little reformatting). Also reformatted the whole module with 4 spaces and no tabs.
1997-12-08 20:12:23 -04:00
def endheaders(self):
"""Indicate that the last header line has been sent to the server."""
self.send('\r\n')
OpenSSL support. This is based on patches for a version of SSLeay by Brian E Gallew, which were improved and adapted to OpenSSL 0.9.4 by Laszlo Kovacs of HP. Both have kindly given permission to include the patches in the Python distribution. Final formatting by GvR.
1999-12-07 17:37:17 -04:00
Doc strings by Mitch Chapman (with a little reformatting). Also reformatted the whole module with 4 spaces and no tabs.
1997-12-08 20:12:23 -04:00
def getreply(self):
"""Get a reply from the server.
OpenSSL support. This is based on patches for a version of SSLeay by Brian E Gallew, which were improved and adapted to OpenSSL 0.9.4 by Laszlo Kovacs of HP. Both have kindly given permission to include the patches in the Python distribution. Final formatting by GvR.
1999-12-07 17:37:17 -04:00
Doc strings by Mitch Chapman (with a little reformatting). Also reformatted the whole module with 4 spaces and no tabs.
1997-12-08 20:12:23 -04:00
Returns a tuple consisting of:
- server response code (e.g. '200' if all goes well)
- server response string corresponding to response code
- any RFC822 headers in the response from the server
"""
self.file = self.sock.makefile('rb')
line = self.file.readline()
if self.debuglevel > 0: print 'reply:', `line`
try:
[ver, code, msg] = string.split(line, None, 2)
except ValueError:
Patch by Tim O'Malley for servers that send a response looking just like HTTP/1.x 200 instead of HTTP/1.x 200 OK
1998-01-19 18:25:24 -04:00
try:
[ver, code] = string.split(line, None, 1)
msg = ""
except ValueError:
self.headers = None
return -1, line, self.headers
Doc strings by Mitch Chapman (with a little reformatting). Also reformatted the whole module with 4 spaces and no tabs.
1997-12-08 20:12:23 -04:00
if ver[:5] != 'HTTP/':
self.headers = None
return -1, line, self.headers
errcode = string.atoi(code)
errmsg = string.strip(msg)
self.headers = mimetools.Message(self.file, 0)
return errcode, errmsg, self.headers
OpenSSL support. This is based on patches for a version of SSLeay by Brian E Gallew, which were improved and adapted to OpenSSL 0.9.4 by Laszlo Kovacs of HP. Both have kindly given permission to include the patches in the Python distribution. Final formatting by GvR.
1999-12-07 17:37:17 -04:00
Doc strings by Mitch Chapman (with a little reformatting). Also reformatted the whole module with 4 spaces and no tabs.
1997-12-08 20:12:23 -04:00
def getfile(self):
"""Get a file object from which to receive data from the HTTP server.
NOTE: This method must not be invoked until getreplies
has been invoked.
"""
return self.file
OpenSSL support. This is based on patches for a version of SSLeay by Brian E Gallew, which were improved and adapted to OpenSSL 0.9.4 by Laszlo Kovacs of HP. Both have kindly given permission to include the patches in the Python distribution. Final formatting by GvR.
1999-12-07 17:37:17 -04:00
Doc strings by Mitch Chapman (with a little reformatting). Also reformatted the whole module with 4 spaces and no tabs.
1997-12-08 20:12:23 -04:00
def close(self):
"""Close the connection to the HTTP server."""
if self.file:
self.file.close()
self.file = None
if self.sock:
self.sock.close()
self.sock = None
use mimetools; add close()
1995-08-07 17:13:02 -03:00
OpenSSL support. This is based on patches for a version of SSLeay by Brian E Gallew, which were improved and adapted to OpenSSL 0.9.4 by Laszlo Kovacs of HP. Both have kindly given permission to include the patches in the Python distribution. Final formatting by GvR.
1999-12-07 17:37:17 -04:00
if hasattr(socket, "ssl"):
class HTTPS(HTTP):
"""This class allows communication via SSL."""
def connect(self, host, port = 0):
"""Connect to a host on a given port.
Note: This method is automatically invoked by __init__,
if a host is specified during instantiation.
"""
if not port:
i = string.find(host, ':')
if i >= 0:
host, port = host[:i], host[i+1:]
try: port = string.atoi(port)
except string.atoi_error:
raise socket.error, "nonnumeric port"
if not port: port = HTTPS_PORT
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
if self.debuglevel > 0: print 'connect:', (host, port)
sock.connect(host, port)
ssl = socket.ssl(sock, self.key_file, self.cert_file)
self.sock = FakeSocket(sock, ssl)
Towards a standard access mechanism for URLs.
1994-02-21 12:36:04 -04:00
def test():
Doc strings by Mitch Chapman (with a little reformatting). Also reformatted the whole module with 4 spaces and no tabs.
1997-12-08 20:12:23 -04:00
"""Test this module.
The test consists of retrieving and displaying the Python
home page, along with the error code and error string returned
by the www.python.org server.
"""
import sys
import getopt
opts, args = getopt.getopt(sys.argv[1:], 'd')
dl = 0
for o, a in opts:
if o == '-d': dl = dl + 1
OpenSSL support. This is based on patches for a version of SSLeay by Brian E Gallew, which were improved and adapted to OpenSSL 0.9.4 by Laszlo Kovacs of HP. Both have kindly given permission to include the patches in the Python distribution. Final formatting by GvR.
1999-12-07 17:37:17 -04:00
print "testing HTTP..."
Doc strings by Mitch Chapman (with a little reformatting). Also reformatted the whole module with 4 spaces and no tabs.
1997-12-08 20:12:23 -04:00
host = 'www.python.org'
selector = '/'
if args[0:]: host = args[0]
if args[1:]: selector = args[1]
h = HTTP()
h.set_debuglevel(dl)
h.connect(host)
h.putrequest('GET', selector)
h.endheaders()
errcode, errmsg, headers = h.getreply()
print 'errcode =', errcode
print 'errmsg =', errmsg
print
if headers:
for header in headers.headers: print string.strip(header)
print
print h.getfile().read()
OpenSSL support. This is based on patches for a version of SSLeay by Brian E Gallew, which were improved and adapted to OpenSSL 0.9.4 by Laszlo Kovacs of HP. Both have kindly given permission to include the patches in the Python distribution. Final formatting by GvR.
1999-12-07 17:37:17 -04:00
if hasattr(socket, "ssl"):
print "-"*40
print "testing HTTPS..."
host = 'synergy.as.cmu.edu'
selector = '/~geek/'
if args[0:]: host = args[0]
if args[1:]: selector = args[1]
h = HTTPS()
h.set_debuglevel(dl)
h.connect(host)
h.putrequest('GET', selector)
h.endheaders()
errcode, errmsg, headers = h.getreply()
print 'errcode =', errcode
print 'errmsg =', errmsg
print
if headers:
for header in headers.headers: print string.strip(header)
print
print h.getfile().read()
Towards a standard access mechanism for URLs.
1994-02-21 12:36:04 -04:00
fixed the test program
1995-09-07 16:28:19 -03:00
Towards a standard access mechanism for URLs.
1994-02-21 12:36:04 -04:00
if __name__ == '__main__':
Doc strings by Mitch Chapman (with a little reformatting). Also reformatted the whole module with 4 spaces and no tabs.
1997-12-08 20:12:23 -04:00
test()