| 20 |
20 |
from django.utils.encoding import force_text
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| 21 |
21 |
from django.template import Context, Template, TemplateSyntaxError, VariableDoesNotExist
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| 22 |
22 |
from django.utils.http import quote
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|
23 |
from django.utils.six.moves.urllib import parse as urlparse
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| 23 |
24 |
|
| 24 |
25 |
|
| 25 |
26 |
class TemplateError(Exception):
|
| ... | ... | |
| 62 |
63 |
raise TemplateError('unknown variable %s', varname)
|
| 63 |
64 |
return force_text(template_vars[varname])
|
| 64 |
65 |
return re.sub(r'(\[.+?\])', repl, url)
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|
66 |
|
|
67 |
PROTOCOLS_TO_PORT = {
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|
68 |
'http': '80',
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|
69 |
'https': '443',
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|
70 |
}
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|
71 |
|
|
72 |
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|
73 |
def same_domain(domain1, domain2):
|
|
74 |
if domain1 == domain2:
|
|
75 |
return True
|
|
76 |
|
|
77 |
if not domain1 or not domain2:
|
|
78 |
return False
|
|
79 |
|
|
80 |
if domain2.startswith('.'):
|
|
81 |
# p1 is a sub-domain or the base domain
|
|
82 |
if domain1.endswith(domain2) or domain1 == domain2[1:]:
|
|
83 |
return True
|
|
84 |
return False
|
|
85 |
|
|
86 |
|
|
87 |
def same_origin(url1, url2):
|
|
88 |
'''Checks if both URL use the same domain. It understands domain patterns on url2, i.e. .example.com
|
|
89 |
matches www.example.com.
|
|
90 |
|
|
91 |
If not scheme is given in url2, scheme compare is skipped.
|
|
92 |
If not scheme and not port are given, port compare is skipped.
|
|
93 |
The last two rules allow authorizing complete domains easily.
|
|
94 |
'''
|
|
95 |
p1, p2 = urlparse.urlparse(url1), urlparse.urlparse(url2)
|
|
96 |
|
|
97 |
if p2.scheme and p1.scheme != p2.scheme:
|
|
98 |
return False
|
|
99 |
|
|
100 |
if not same_domain(p1.hostname, p2.hostname):
|
|
101 |
return False
|
|
102 |
|
|
103 |
try:
|
|
104 |
if (p2.port or (p1.port and p2.scheme)) and (
|
|
105 |
(p1.port or PROTOCOLS_TO_PORT[p1.scheme])
|
|
106 |
!= (p2.port or PROTOCOLS_TO_PORT[p2.scheme])):
|
|
107 |
return False
|
|
108 |
except (ValueError, KeyError):
|
|
109 |
return False
|
|
110 |
|
|
111 |
return True
|
| 65 |
|
-
|