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"""
/**********************************************************************
FILE : $RCSfile: squidRewriteRules.py,v $
PURPOSE : Rule set for icoya redirector
NOTES :
AUTHOR : Simon Eisenmann
COPYRIGHT: (c) 2003,2004 by struktur AG
DATE : 28JAN2003
REVISION : $Revision: 1.12 $
VERSION : $Id: squidRewriteRules.py,v 1.12 2004/08/06 08:16:19 longsleep Exp $ (Author: $Author: longsleep $)
struktur AG Phone: +49 711 8966560
Junghansstr. 5 Fax: +49 711 89665610
70469 Stuttgart email: info@struktur.de
GERMANY
http://www.struktur.de
http://www.strukturag.com
**********************************************************************/
Reloadable module allows arbitrary url transformations.
Automatic reload of the rules
+++++++++++++++++++++++++++++++++++
NOTE: use the reload after parameter to auto reload this module
after x requests. Use -1 to disable auto reload
Logging
+++++++++++++++++++++++++++++++++++
NOTE: set debug to 1 to enable logging
define the logfile in the logfile variable (enter full path)
"""
import re, sys
try:
import py
except ImportError:
pass
"""
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
begin of configuration
"""
# log mode (set to 1 to enable logging)
debug = 0
# logfile for debugging (only required when debug == 1)
logfile = "/etc/squid/redirector_class.log"
# set this to -1 to get best performance (no reload)
reload_after = -1
# define sitemap matching regex mapping
# MODIFY THIS REWRITE RULE AS NEEDED FOR YOUR SITE
rewrites = (
### HTTP SSL/encrypted webmail rewrite ### You can use this as an example for your ssl virtualhosted website
<tmpl_loop name="squid_rewrite_rules">
(r'{tmpl_var name="rewrite_url_src"}', r'{tmpl_var name="rewrite_url_dest"}\1', 'P,L'),
</tmpl_loop>
)
"""
end of configuration
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
"""
compiled_rewrites = None
def log(s):
""" Logging facility.
"""
try:
f = open(logfile, "a")
except IOError:
print >> sys.stderr, s
return
f.write('%s\n' % s)
f.flush()
f.close()
def init():
global compiled_rewrites
compiled_rewrites = []
for rewrite in rewrites:
regexp = re.compile(rewrite[0])
template = rewrite[1]
flags = {}
for flag in rewrite[2].split(','):
parts = flag.split('=')
flag = parts[0]
option = None
if flag == 'R':
if len(parts) > 1:
option = "%s:" % parts[1]
else:
option = '302:'
flags[flag] = option
compiled = (regexp, template, flags)
if debug:
log('compiled: %s' % str((regexp.pattern, template, flags)))
compiled_rewrites.append(compiled)
compiled_rewrites = tuple(compiled_rewrites)
def rewrite(url, src_address=''):
""" just rewrites urls.
"""
if debug:
log("args: %s" % str((url, src_address)))
newurl = None
for regexp, template, flags in compiled_rewrites:
m = regexp.match(url)
if m is not None and template != '-':
if debug:
log("match.groups ('%s'): %s" % (regexp.pattern, str(m.groups())))
url = newurl = "%s%s" % (flags.get('R', ''), m.expand(template))
if debug:
log('newurl: %s' % newurl)
if 'L' in flags:
break
if newurl is not None:
if debug:
log('finalurl: %s' % newurl)
return newurl
# redirect to something we can match by a squid acl
# this special non existing domain should be denied
# by squid with a http_reply_access line
return "http://denypool/denyme"
def test_foobar_redirection():
assert rewrite('http://foobar.com/foo/bar') == '302:http://www.foobar.com/foo/bar'
assert rewrite('http://foobar.de/foo/bar') == '302:http://www.foobar.com/foo/bar'
assert rewrite('http://www.foobar.de/foo/bar') == '302:http://www.foobar.com/foo/bar'
assert rewrite('http://foobar-portal.de/foo/bar') == '302:http://www.foobar.com/foo/bar'
assert rewrite('http://www.foobar-portal.de/foo/bar') == '302:http://www.foobar.com/foo/bar'
assert rewrite('http://foobar-portal-europe.de/foo/bar') == '302:http://www.foobar.com/foo/bar'
assert rewrite('http://www.foobar-portal-europe.de/foo/bar') == '302:http://www.foobar.com/foo/bar'
# shouldn't redirect, just rewrite
assert not rewrite('http://www.foobar.com/foo/bar').startswith('302:')
def test_foobarbacon_redirection():
assert rewrite('http://foobar-bacon.com/foo/bar') == '302:http://www.foobar-bacon.com/foo/bar'
assert rewrite('http://foobar-bacon.de/foo/bar') == '302:http://www.foobar-bacon.com/foo/bar'
assert rewrite('http://www.foobar-bacon.de/foo/bar') == '302:http://www.foobar-bacon.com/foo/bar'
assert rewrite('http://foobar-bacon-europe.de/foo/bar') == '302:http://www.foobar-bacon.com/foo/bar'
assert rewrite('http://www.foobar-bacon-europe.de/foo/bar') == '302:http://www.foobar-bacon.com/foo/bar'
assert rewrite('http://foobar-bacon-europe.com/foo/bar') == '302:http://www.foobar-bacon.com/foo/bar'
assert rewrite('http://www.foobar-bacon-europe.com/foo/bar') == '302:http://www.foobar-bacon.com/foo/bar'
assert rewrite('http://foobar-bacon.net/foo/bar') == '302:http://www.foobar-bacon.com/foo/bar'
assert rewrite('http://www.foobar-bacon.net/foo/bar') == '302:http://www.foobar-bacon.com/foo/bar'
# shouldn't redirect, just rewrite
assert not rewrite('http://www.foobar-bacon.com/foo/bar').startswith('302:')
def test_virtual_hosting():
assert rewrite('http://www.foobar.com/foo/bar') == 'http://backendpool/VirtualHostBase/http/www.foobar.com/foobarportal/VirtualHostRoot/foo/bar'
assert rewrite('http://www.foobar.com:8088/foo/bar') == 'http://backendpool/VirtualHostBase/http/www.foobar.com:8088/foobarportal/VirtualHostRoot/foo/bar'
assert rewrite('http://www.foobar-bacon.com/foo/bar') == 'http://backendpool/VirtualHostBase/http/www.foobar-bacon.com/foobarbacon/VirtualHostRoot/foo/bar'
assert rewrite('http://www.foobar-bacon.com:8088/foo/bar') == 'http://backendpool/VirtualHostBase/http/www.foobar-bacon.com:8088/foobarbacon/VirtualHostRoot/foo/bar'
def test_zmi():
assert rewrite('http://www.foobar.com/--zmi--/foo/bar') == 'http://backendpool/VirtualHostBase/http/www.foobar.com/VirtualHostRoot/_vh_--zmi--/foo/bar'
assert rewrite('http://www.foobar.com:8088/--zmi--/foo/bar') == 'http://backendpool/VirtualHostBase/http/www.foobar.com:8088/VirtualHostRoot/_vh_--zmi--/foo/bar'
def test_repos():
assert rewrite('http://www.foobar.com/--repos--/foo/bar') == 'http://localhost/--repos--/foo/bar'
assert rewrite('http://www.foobar.com:8088/--repos--/foo/bar') == 'http://localhost/--repos--/foo/bar'
if debug:
log("reloading user redirector module")
init()
if debug:
log("reloaded user redirector module")