forked from pyload/pyload
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathmiddlewares.py
More file actions
133 lines (110 loc) · 4.08 KB
/
Copy pathmiddlewares.py
File metadata and controls
133 lines (110 loc) · 4.08 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import gzip
try:
from cStringIO import StringIO
except ImportError:
from StringIO import StringIO
class StripPathMiddleware(object):
def __init__(self, app):
self.app = app
def __call__(self, e, h):
e['PATH_INFO'] = e['PATH_INFO'].rstrip('/')
return self.app(e, h)
class PrefixMiddleware(object):
def __init__(self, app, prefix="/pyload"):
self.app = app
self.prefix = prefix
def __call__(self, e, h):
path = e["PATH_INFO"]
if path.startswith(self.prefix):
e['PATH_INFO'] = path.replace(self.prefix, "", 1)
return self.app(e, h)
# (c) 2005 Ian Bicking and contributors; written for Paste (http://pythonpaste.org)
# Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php
# (c) 2005 Ian Bicking and contributors; written for Paste (http://pythonpaste.org)
# Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php
# WSGI middleware
# Gzip-encodes the response.
class GZipMiddleWare(object):
def __init__(self, application, compress_level=6):
self.application = application
self.compress_level = int(compress_level)
def __call__(self, environ, start_response):
if 'gzip' not in environ.get('HTTP_ACCEPT_ENCODING', ''):
# nothing for us to do, so this middleware will
# be a no-op:
return self.application(environ, start_response)
response = GzipResponse(start_response, self.compress_level)
app_iter = self.application(environ,
response.gzip_start_response)
if app_iter is not None:
response.finish_response(app_iter)
return response.write()
def header_value(headers, key):
for header, value in headers:
if key.lower() == header.lower():
return value
def update_header(headers, key, value):
remove_header(headers, key)
headers.append((key, value))
def remove_header(headers, key):
for header, value in headers:
if key.lower() == header.lower():
headers.remove((header, value))
break
class GzipResponse(object):
def __init__(self, start_response, compress_level):
self.start_response = start_response
self.compress_level = compress_level
self.buffer = StringIO()
self.compressible = False
self.content_length = None
self.headers = ()
def gzip_start_response(self, status, headers, exc_info=None):
self.headers = headers
ct = header_value(headers,'content-type')
ce = header_value(headers,'content-encoding')
cl = header_value(headers, 'content-length')
if cl:
cl = int(cl)
else:
cl = 201
self.compressible = False
if ct and (ct.startswith('text/') or ct.startswith('application/')) \
and 'zip' not in ct and cl > 200:
self.compressible = True
if ce:
self.compressible = False
if self.compressible:
headers.append(('content-encoding', 'gzip'))
remove_header(headers, 'content-length')
self.headers = headers
self.status = status
return self.buffer.write
def write(self):
out = self.buffer
out.seek(0)
s = out.getvalue()
out.close()
return [s]
def finish_response(self, app_iter):
if self.compressible:
output = gzip.GzipFile(mode='wb', compresslevel=self.compress_level,
fileobj=self.buffer)
else:
output = self.buffer
try:
for s in app_iter:
output.write(s)
if self.compressible:
output.close()
finally:
if hasattr(app_iter, 'close'):
try:
app_iter.close()
except :
pass
content_length = self.buffer.tell()
update_header(self.headers, "Content-Length" , str(content_length))
self.start_response(self.status, self.headers)