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# (C) Copyright 2005 Nuxeo SAS <http://nuxeo.com>
# Author: [email protected]
# Contributors: Tom Lazar
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as published
# by the Free Software Foundation.
#
# 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
#
"""Patching Richard Jones' webunit for FunkLoad.
* Add cache for links (css, js)
* store a browser history
* add headers
* log response
* remove webunit log
* fix HTTPResponse __repr__
* patching webunit mimeEncode to be rfc 1945 3.6.2 compliant using CRLF
* patching to remove cookie with a 'deleted' value
* patching to have application/x-www-form-urlencoded by default and only
multipart when a file is posted
* patch fetch postdata must be [(key, value) ...] no more dict or list value
$Id: PatchWebunit.py 24649 2005-08-29 14:20:19Z bdelbosc $
"""
import os
import sys
import time
import urlparse
from urllib import urlencode
import httplib
import cStringIO
from mimetypes import guess_type
from webunit import cookie
from webunit.IMGSucker import IMGSucker
from webunit.webunittest import WebTestCase, WebFetcher
from webunit.webunittest import HTTPResponse, HTTPError, VERBOSE
from webunit.utility import Upload
from utils import thread_sleep, Data
import re
valid_url = re.compile(r'^(http|https)://[a-z0-9\.\-\:]+(\/[^\ \t\<\>]*)?$',
re.I)
BOUNDARY = '--------------GHSKFJDLGDS7543FJKLFHRE75642756743254'
SEP_BOUNDARY = '--' + BOUNDARY
END_BOUNDARY = SEP_BOUNDARY + '--'
def mimeEncode(data, sep_boundary=SEP_BOUNDARY, end_boundary=END_BOUNDARY):
'''Take the mapping of data and construct the body of a
multipart/form-data message with it using the indicated boundaries.
'''
ret = cStringIO.StringIO()
first_part = True
for key, value in data:
if not key:
continue
# Don't add newline before first part
if first_part:
first_part = False
else:
ret.write('\r\n')
ret.write(sep_boundary)
if isinstance(value, Upload):
ret.write('\r\nContent-Disposition: form-data; name="%s"'%key)
ret.write('; filename="%s"\r\n' % value.filename)
if value.filename:
mimetype = guess_type(value.filename)[0]
if mimetype is not None:
ret.write('Content-Type: %s\r\n' % mimetype)
value = open(os.path.join(value.filename), "rb").read()
else:
value = ''
ret.write('\r\n')
else:
ret.write('\r\nContent-Disposition: form-data; name="%s"'%key)
ret.write("\r\n\r\n")
ret.write(str(value))
if value and value[-1] == '\r':
ret.write('\r\n') # write an extra newline
ret.write('\r\n')
ret.write(end_boundary)
ret.write('\r\n')
return ret.getvalue()
class FKLIMGSucker(IMGSucker):
"""Image and links loader, patched to log response stats."""
def __init__(self, url, session, ftestcase=None):
IMGSucker.__init__(self, url, session)
self.ftestcase = ftestcase
def do_img(self, attributes):
"""Process img tag."""
newattributes = []
for name, value in attributes:
if name == 'src':
# construct full url
url = urlparse.urljoin(self.base, value)
# make sure it's syntactically valid
if not valid_url.match(url):
continue
# TODO: figure the re-write path
# newattributes.append((name, path))
if not self.session.images.has_key(url):
self.ftestcase.logdd(' img: %s ...' % url)
t_start = time.time()
self.session.images[url] = self.session.fetch(url)
t_stop = time.time()
self.ftestcase.logdd(' Done in %.3fs' %
(t_stop - t_start))
self.session.history.append(('image', url))
self.ftestcase.total_time += (t_stop - t_start)
self.ftestcase.total_images += 1
self.ftestcase._log_response(self.session.images[url],
'image', None, t_start,
t_stop)
thread_sleep() # give a chance to other threads
else:
newattributes.append((name, value))
# Write the img tag to file (with revised paths)
self.unknown_starttag('img', newattributes)
def do_link(self, attributes):
"""Process link tag."""
newattributes = [('rel', 'stylesheet'), ('type', 'text/css')]
for name, value in attributes:
if name == 'href':
# construct full url
url = urlparse.urljoin(self.base, value)
# make sure it's syntactically valid
if not valid_url.match(url):
continue
# TODO: figure the re-write path
# newattributes.append((name, path))
if not self.session.css.has_key(url):
self.ftestcase.logdd(' link: %s ...' % url)
t_start = time.time()
self.session.css[url] = self.session.fetch(url)
t_stop = time.time()
self.ftestcase.logdd(' Done in %.3fs' %
(t_stop - t_start))
self.session.history.append(('link', url))
self.ftestcase.total_time += (t_stop - t_start)
self.ftestcase.total_links += 1
self.ftestcase._log_response(self.session.css[url],
'link', None, t_start, t_stop)
thread_sleep() # give a chance to other threads
else:
newattributes.append((name, value))
# Write the link tag to file (with revised paths)
self.unknown_starttag('link', newattributes)
# remove webunit logging
def WTC_log(self, message, content):
"""Remove webunit logging."""
pass
WebTestCase.log = WTC_log
# use fl img sucker
def WTC_pageImages(self, url, page, testcase=None):
'''Given the HTML page that was loaded from url, grab all the images.
'''
sucker = FKLIMGSucker(url, self, testcase)
sucker.feed(page)
sucker.close()
WebTestCase.pageImages = WTC_pageImages
# WebFetcher fetch
def WF_fetch(self, url, postdata=None, server=None, port=None, protocol=None,
ok_codes=None):
'''Run a single test request to the indicated url. Use the POST data
if supplied.
Raises failureException if the returned data contains any of the
strings indicated to be Error Content.
Returns a HTTPReponse object wrapping the response from the server.
'''
# see if the url is fully-qualified (not just a path)
t_protocol, t_server, t_url, x, t_args, x = urlparse.urlparse(url)
if t_server:
protocol = t_protocol
if ':' in t_server:
server, port = t_server.split(':')
else:
server = t_server
if protocol == 'http':
port = '80'
else:
port = '443'
url = t_url
if t_args:
url = url + '?' + t_args
# ignore the machine name if the URL is for localhost
if t_server == 'localhost':
server = None
elif not server:
# no server was specified with this fetch, or in the URL, so
# see if there's a base URL to use.
base = self.get_base_url()
if base:
t_protocol, t_server, t_url, x, x, x = urlparse.urlparse(base)
if t_protocol:
protocol = t_protocol
if t_server:
server = t_server
if t_url:
url = urlparse.urljoin(t_url, url)
# TODO: allow override of the server and port from the URL!
if server is None:
server = self.server
if port is None:
port = self.port
if protocol is None:
protocol = self.protocol
if ok_codes is None:
ok_codes = self.expect_codes
webproxy = {}
if protocol == 'http':
try:
proxystring = os.environ["http_proxy"].replace("http://", "")
webproxy['host'] = proxystring.split(":")[0]
webproxy['port'] = int(proxystring.split(":")[1])
except (KeyError, IndexError, ValueError):
webproxy = False
if webproxy:
h = httplib.HTTPConnection(webproxy['host'], webproxy['port'])
else:
h = httplib.HTTP(server, int(port))
if int(port) == 80:
host_header = server
else:
host_header = '%s:%s' % (server, port)
elif protocol == 'https':
#if httpslib is None:
#raise ValueError, "Can't fetch HTTPS: M2Crypto not installed"
h = httplib.HTTPS(server, int(port))
if int(port) == 443:
host_header = server
else:
host_header = '%s:%s' % (server, port)
else:
raise ValueError, protocol
params = None
if postdata is not None:
if webproxy:
h.putrequest('POST', "http://%s%s" % (host_header, url))
else:
# Normal post
h.putrequest('POST', url)
if postdata:
if isinstance(postdata, Data):
# User data and content_type
params = postdata.data
h.putheader('Content-type', postdata.content_type)
else:
# Check for File upload
is_multipart = False
for field, value in postdata:
if isinstance(value, Upload):
# Post with a data file requires multipart mimeencode
is_multipart = True
break
if is_multipart:
params = mimeEncode(postdata)
h.putheader('Content-type', 'multipart/form-data; boundary=%s'%
BOUNDARY)
else:
params = urlencode(postdata)
h.putheader('Content-type', 'application/x-www-form-urlencoded')
h.putheader('Content-length', str(len(params)))
else:
if webproxy:
h.putrequest('GET', "http://%s%s" % (host_header, url))
else:
# Normal GET
h.putrequest('GET', url)
# Other Full Request headers
if self.authinfo:
h.putheader('Authorization', "Basic %s"%self.authinfo)
if not webproxy:
# HTTPConnection seems to add a host header itself.
# So we only need to do this if we are not using a proxy.
h.putheader('Host', host_header)
# FL Patch -------------------------
for key, value in self.extra_headers:
h.putheader(key, value)
# FL Patch end ---------------------
# Send cookies
# - check the domain, max-age (seconds), path and secure
# (http://www.ietf.org/rfc/rfc2109.txt)
cookies_used = []
cookie_list = []
for domain, cookies in self.cookies.items():
# check cookie domain
if not server.endswith(domain):
continue
for path, cookies in cookies.items():
# check that the path matches
urlpath = urlparse.urlparse(url)[2]
if not urlpath.startswith(path) and not (path == '/' and
urlpath == ''):
continue
for sendcookie in cookies.values():
# and that the cookie is or isn't secure
if sendcookie['secure'] and protocol != 'https':
continue
if sendcookie.coded_value == '"deleted"':
continue
# TODO: check max-age
cookie_list.append("%s=%s"%(sendcookie.key,
sendcookie.coded_value))
cookies_used.append(sendcookie.key)
if cookie_list:
h.putheader('Cookie', '; '.join(cookie_list))
#print ' Cookies: ' + str(cookie_list)
# check that we sent the cookies we expected to
if self.expect_cookies is not None:
assert cookies_used == self.expect_cookies, \
"Didn't use all cookies (%s expected, %s used)"%(
self.expect_cookies, cookies_used)
# finish the headers
h.endheaders()
if params is not None:
h.send(params)
# handle the reply
if webproxy:
r = h.getresponse()
errcode = r.status
errmsg = r.reason
headers = r.msg
data = r.read()
response = HTTPResponse(self.cookies, protocol, server, port, url,
errcode, errmsg, headers, data,
self.error_content)
else:
# get the body and save it
errcode, errmsg, headers = h.getreply()
f = h.getfile()
g = cStringIO.StringIO()
d = f.read()
while d:
g.write(d)
d = f.read()
response = HTTPResponse(self.cookies, protocol, server, port, url,
errcode, errmsg, headers, g.getvalue(),
self.error_content)
f.close()
if errcode not in ok_codes:
if VERBOSE:
sys.stdout.write('e')
sys.stdout.flush()
raise HTTPError(response)
# decode the cookies
if self.accept_cookies:
try:
# decode the cookies and update the cookies store
cookie.decodeCookies(url, server, headers, self.cookies)
except:
if VERBOSE:
sys.stdout.write('c')
sys.stdout.flush()
raise
# Check errors
if self.error_content:
data = response.body
for content in self.error_content:
if data.find(content) != -1:
msg = "Matched error: %s" % content
if hasattr(self, 'results') and self.results:
self.writeError(url, msg)
self.log('Matched error'+`(url, content)`, data)
if VERBOSE:
sys.stdout.write('c')
sys.stdout.flush()
raise self.failureException, msg
if VERBOSE:
sys.stdout.write('_')
sys.stdout.flush()
return response
WebFetcher.fetch = WF_fetch
def HR___repr__(self):
"""fix HTTPResponse rendering."""
return """<response url="%s://%s:%s%s" code="%s" message="%s" />""" % (
self.protocol, self.server, self.port, self.url, self.code,
self.message)
HTTPResponse.__repr__ = HR___repr__