author | Sverre Rabbelier <srabbelier@gmail.com> |
Sat, 06 Dec 2008 12:12:58 +0000 | |
changeset 676 | c6433532ddff |
parent 512 | aae25d2b4464 |
child 1307 | 091a21cf3627 |
permissions | -rw-r--r-- |
189
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
1 |
#!/usr/bin/python2.5 |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
2 |
# |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
3 |
# Copyright 2008 the Melange authors. |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
4 |
# |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
5 |
# Licensed under the Apache License, Version 2.0 (the "License"); |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
6 |
# you may not use this file except in compliance with the License. |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
7 |
# You may obtain a copy of the License at |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
8 |
# |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
9 |
# http://www.apache.org/licenses/LICENSE-2.0 |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
10 |
# |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
11 |
# Unless required by applicable law or agreed to in writing, software |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
12 |
# distributed under the License is distributed on an "AS IS" BASIS, |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
13 |
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
14 |
# See the License for the specific language governing permissions and |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
15 |
# limitations under the License. |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
16 |
|
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
17 |
"""Helpers for manipulating HTTP requests. |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
18 |
""" |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
19 |
|
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
20 |
__authors__ = [ |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
21 |
'"Todd Larsen" <tlarsen@google.com>', |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
22 |
] |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
23 |
|
365
74dec172944e
Create decorators module in view/helper and add view decorator that catches exceptions like DeadlineExceededError, MemoryError, AssertionError (this code is being moved from respond function). Add view decorator to all view functions. In addition remove not needed imports from all affected files and fix too long lines.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
269
diff
changeset
|
24 |
|
201
bc7f0ac07fcb
Fixed missing urlparse import in request_helpers which cause /user/profile and /site/user/profile not to work at all. Removed not used module imports in response_helpers.py.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
190
diff
changeset
|
25 |
import urlparse |
bc7f0ac07fcb
Fixed missing urlparse import in request_helpers which cause /user/profile and /site/user/profile not to work at all. Removed not used module imports in response_helpers.py.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
190
diff
changeset
|
26 |
|
189
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
27 |
|
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
28 |
def getSingleIndexedParamValue(request, param_name, values=()): |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
29 |
"""Returns a value indexed by a query parameter in the HTTP request. |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
30 |
|
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
31 |
Args: |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
32 |
request: the Django HTTP request object |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
33 |
param_name: name of the query parameter in the HTTP request |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
34 |
values: list (or tuple) of ordered values; one of which is |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
35 |
retrieved by the index value of the param_name argument in |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
36 |
the HTTP request |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
37 |
|
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
38 |
Returns: |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
39 |
None if the query parameter was not present, was not an integer, or |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
40 |
was an integer that is not a valid [0..len(values)-1] index into |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
41 |
the values list. |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
42 |
Otherwise, returns values[int(param_name value)] |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
43 |
""" |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
44 |
value_idx = request.GET.get(param_name) |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
45 |
|
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
46 |
if isinstance(value_idx, (tuple, list)): |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
47 |
# keep only the first argument if multiple are present |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
48 |
value_idx = value_idx[0] |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
49 |
|
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
50 |
try: |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
51 |
# GET parameter 'param_name' should be an integer value index |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
52 |
value_idx = int(value_idx) |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
53 |
except: |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
54 |
# ignore bogus or missing parameter values, so return None (no message) |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
55 |
return None |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
56 |
|
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
57 |
if value_idx < 0: |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
58 |
# value index out of range, so return None (no value) |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
59 |
return None |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
60 |
|
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
61 |
if value_idx >= len(values): |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
62 |
# value index out of range, so return None (no value) |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
63 |
return None |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
64 |
|
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
65 |
# return value associated with valid value index |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
66 |
return values[value_idx] |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
67 |
|
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
68 |
|
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
69 |
def getSingleIndexedParamValueIfMissing(value, request, param_name, |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
70 |
values=()): |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
71 |
"""Returns missing value indexed by a query parameter in the HTTP request. |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
72 |
|
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
73 |
Args: |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
74 |
value: an existing value, or a "False" value such as None |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
75 |
request, param_name, values: see getSingleIndexParamValue() |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
76 |
|
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
77 |
Returns: |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
78 |
value, if value is "non-False" |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
79 |
Otherwise, returns getSingleIndexedParamValue() result. |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
80 |
""" |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
81 |
if value: |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
82 |
# value already present, so return it |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
83 |
return value |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
84 |
|
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
85 |
return getSingleIndexedParamValue(request, param_name, values=values) |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
86 |
|
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
87 |
|
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
88 |
# TODO(tlarsen): write getMultipleIndexParamValues() that returns a |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
89 |
# list of values if present, omitting those values that are |
1cf3e7531382
Split out HTTP request manipulation functions from template_helpers.py, which
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
90 |
# out of range |
190
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
91 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
92 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
93 |
def isReferrerSelf(request, |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
94 |
expected_prefix=None, suffix=None): |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
95 |
"""Returns True if HTTP referrer path starts with the HTTP request path. |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
96 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
97 |
Args: |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
98 |
request: the Django HTTP request object; request.path is used if |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
99 |
expected_path is not supplied (the most common usage) |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
100 |
expected_prefix: optional HTTP path to use instead of the one in |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
101 |
request.path; default is None (use request.path) |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
102 |
suffix: suffix to remove from the HTTP request path before comparing |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
103 |
it to the HTTP referrer path in the HTTP request object headers |
512
aae25d2b4464
Rename link_name to link_id everywhere, regardless of case (so LINK_NAME
Todd Larsen <tlarsen@google.com>
parents:
365
diff
changeset
|
104 |
(this is often an link ID, for example, that may be changing from |
190
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
105 |
a POST referrer to a GET redirect target) |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
106 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
107 |
Returns: |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
108 |
True if HTTP referrer path begins with the HTTP request path (either |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
109 |
request.path or expected_prefix instead if it was supplied), after |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
110 |
any suffix was removed from that request path |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
111 |
False otherwise |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
112 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
113 |
""" |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
114 |
http_from = request.META.get('HTTP_REFERER') |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
115 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
116 |
if not http_from: |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
117 |
# no HTTP referrer, so cannot possibly start with expected prefix |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
118 |
return False |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
119 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
120 |
from_path = urlparse.urlparse(http_from).path |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
121 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
122 |
if not expected_prefix: |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
123 |
# use HTTP request path, since expected_prefix was not supplied |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
124 |
expected_prefix = request.path |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
125 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
126 |
if suffix: |
512
aae25d2b4464
Rename link_name to link_id everywhere, regardless of case (so LINK_NAME
Todd Larsen <tlarsen@google.com>
parents:
365
diff
changeset
|
127 |
# remove suffix (such as a link ID) before comparison |
190
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
128 |
chars_to_remove = len(suffix) |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
129 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
130 |
if not suffix.startswith('/'): |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
131 |
chars_to_remove = chars_to_remove + 1 |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
132 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
133 |
expected_prefix = expected_prefix[:-chars_to_remove] |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
134 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
135 |
if not from_path.startswith(expected_prefix): |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
136 |
# expected prefix did not match first part of HTTP referrer path |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
137 |
return False |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
138 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
139 |
# HTTP referrer started with (possibly truncated) expected prefix |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
140 |
return True |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
141 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
142 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
143 |
def replaceSuffix(path, old_suffix, new_suffix=None, params=None): |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
144 |
"""Replace the last part of a URL path with something else. |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
145 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
146 |
Also appends an optional list of query parameters. Used for |
512
aae25d2b4464
Rename link_name to link_id everywhere, regardless of case (so LINK_NAME
Todd Larsen <tlarsen@google.com>
parents:
365
diff
changeset
|
147 |
replacing, for example, one link ID at the end of a relative |
190
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
148 |
URL path with another. |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
149 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
150 |
Args: |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
151 |
path: HTTP request relative URL path (with no query arguments) |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
152 |
old_suffix: expected suffix at the end of request.path component; |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
153 |
if any False value (such as None), the empty string '' is used |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
154 |
new_suffix: if non-False, appended to request.path along with a |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
155 |
'/' separator (after removing old_suffix if necessary) |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
156 |
params: an optional dictionary of query parameters to append to |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
157 |
the redirect target; appended as ?<key1>=<value1>&<key2>=... |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
158 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
159 |
Returns: |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
160 |
/path/with/new_suffix?a=1&b=2 |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
161 |
""" |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
162 |
if not old_suffix: |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
163 |
old_suffix = '' |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
164 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
165 |
old_suffix = '/' + old_suffix |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
166 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
167 |
if path.endswith(old_suffix): |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
168 |
# also removes any trailing '/' if old_suffix was empty |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
169 |
path = path[:-len(old_suffix)] |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
170 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
171 |
if new_suffix: |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
172 |
# if present, appends new_suffix, after '/' separator |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
173 |
path = '%s/%s' % (path, new_suffix) |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
174 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
175 |
if params: |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
176 |
# appends any query parameters, after a '?' and separated by '&' |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
177 |
path = '%s?%s' % (path, '&'.join( |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
178 |
['%s=%s' % (p,v) for p,v in params.iteritems()])) |
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
179 |
|
b1351bf81064
Move isReferrerSelf() and replaceSuffix() into new request_helpers.py module,
Todd Larsen <tlarsen@google.com>
parents:
189
diff
changeset
|
180 |
return path |