author | Sverre Rabbelier <srabbelier@gmail.com> |
Sat, 21 Feb 2009 00:33:59 +0000 | |
changeset 1416 | 6c94a1531ead |
parent 828 | f5fd65cc3bf3 |
child 2273 | e4cb9c53db3e |
permissions | -rwxr-xr-x |
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#!/usr/bin/env python |
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# |
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# Copyright 2007 Google Inc. |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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# |
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"""An extremely simple WSGI web application framework. |
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This module exports three primary classes: Request, Response, and |
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RequestHandler. You implement a web application by subclassing RequestHandler. |
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As WSGI requests come in, they are passed to instances of your RequestHandlers. |
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The RequestHandler class provides access to the easy-to-use Request and |
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Response objects so you can interpret the request and write the response with |
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no knowledge of the esoteric WSGI semantics. Here is a simple example: |
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from google.appengine.ext import webapp |
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import wsgiref.simple_server |
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class MainPage(webapp.RequestHandler): |
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def get(self): |
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self.response.out.write( |
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'<html><body><form action="/hello" method="post">' |
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'Name: <input name="name" type="text" size="20"> ' |
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'<input type="submit" value="Say Hello"></form></body></html>') |
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class HelloPage(webapp.RequestHandler): |
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def post(self): |
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self.response.headers['Content-Type'] = 'text/plain' |
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self.response.out.write('Hello, %s' % self.request.get('name')) |
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application = webapp.WSGIApplication([ |
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('/', MainPage), |
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('/hello', HelloPage) |
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], debug=True) |
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server = wsgiref.simple_server.make_server('', 8080, application) |
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print 'Serving on port 8080...' |
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server.serve_forever() |
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The WSGIApplication class maps URI regular expressions to your RequestHandler |
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classes. It is a WSGI-compatible application object, so you can use it in |
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conjunction with wsgiref to make your web application into, e.g., a CGI |
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script or a simple HTTP server, as in the example above. |
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The framework does not support streaming output. All output from a response |
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is stored in memory before it is written. |
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""" |
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import cgi |
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import StringIO |
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import logging |
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import re |
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import sys |
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import traceback |
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import urlparse |
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import webob |
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import wsgiref.headers |
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import wsgiref.util |
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RE_FIND_GROUPS = re.compile('\(.*?\)') |
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_CHARSET_RE = re.compile(r';\s*charset=([^;\s]*)', re.I) |
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class Error(Exception): |
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"""Base of all exceptions in the webapp module.""" |
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pass |
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class NoUrlFoundError(Error): |
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"""Thrown when RequestHandler.get_url() fails.""" |
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pass |
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class Request(webob.Request): |
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"""Abstraction for an HTTP request. |
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Properties: |
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uri: the complete URI requested by the user |
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scheme: 'http' or 'https' |
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host: the host, including the port |
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path: the path up to the ';' or '?' in the URL |
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parameters: the part of the URL between the ';' and the '?', if any |
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query: the part of the URL after the '?' |
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You can access parsed query and POST values with the get() method; do not |
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parse the query string yourself. |
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""" |
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uri = property(lambda self: self.url) |
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query = property(lambda self: self.query_string) |
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def __init__(self, environ): |
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"""Constructs a Request object from a WSGI environment. |
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If the charset isn't specified in the Content-Type header, defaults |
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to UTF-8. |
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Args: |
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environ: A WSGI-compliant environment dictionary. |
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""" |
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match = _CHARSET_RE.search(environ.get('CONTENT_TYPE', '')) |
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if match: |
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113 |
charset = match.group(1).lower() |
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114 |
else: |
109
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115 |
charset = 'utf-8' |
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116 |
|
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117 |
webob.Request.__init__(self, environ, charset=charset, |
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118 |
unicode_errors= 'ignore', decode_param_names=True) |
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119 |
|
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120 |
def get(self, argument_name, default_value='', allow_multiple=False): |
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"""Returns the query or POST argument with the given name. |
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122 |
|
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123 |
We parse the query string and POST payload lazily, so this will be a |
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124 |
slower operation on the first call. |
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125 |
|
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126 |
Args: |
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127 |
argument_name: the name of the query or POST argument |
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128 |
default_value: the value to return if the given argument is not present |
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129 |
allow_multiple: return a list of values with the given name (deprecated) |
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130 |
|
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131 |
Returns: |
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132 |
If allow_multiple is False (which it is by default), we return the first |
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133 |
value with the given name given in the request. If it is True, we always |
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134 |
return an list. |
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135 |
""" |
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136 |
param_value = self.get_all(argument_name) |
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137 |
if allow_multiple: |
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138 |
return param_value |
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139 |
else: |
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140 |
if len(param_value) > 0: |
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141 |
return param_value[0] |
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142 |
else: |
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143 |
return default_value |
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144 |
|
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145 |
def get_all(self, argument_name): |
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146 |
"""Returns a list of query or POST arguments with the given name. |
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147 |
|
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148 |
We parse the query string and POST payload lazily, so this will be a |
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149 |
slower operation on the first call. |
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150 |
|
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151 |
Args: |
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152 |
argument_name: the name of the query or POST argument |
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153 |
|
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154 |
Returns: |
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A (possibly empty) list of values. |
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156 |
""" |
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157 |
if self.charset: |
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158 |
argument_name = argument_name.encode(self.charset) |
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159 |
|
149
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160 |
param_value = self.params.getall(argument_name) |
109
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161 |
|
149
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162 |
for i in xrange(len(param_value)): |
109
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163 |
if isinstance(param_value[i], cgi.FieldStorage): |
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164 |
param_value[i] = param_value[i].value |
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165 |
|
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166 |
return param_value |
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167 |
|
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168 |
def arguments(self): |
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169 |
"""Returns a list of the arguments provided in the query and/or POST. |
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170 |
|
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171 |
The return value is a list of strings. |
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172 |
""" |
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173 |
return list(set(self.params.keys())) |
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|
174 |
|
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175 |
def get_range(self, name, min_value=None, max_value=None, default=0): |
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176 |
"""Parses the given int argument, limiting it to the given range. |
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177 |
|
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178 |
Args: |
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179 |
name: the name of the argument |
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180 |
min_value: the minimum int value of the argument (if any) |
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|
181 |
max_value: the maximum int value of the argument (if any) |
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182 |
default: the default value of the argument if it is not given |
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|
183 |
|
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184 |
Returns: |
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185 |
An int within the given range for the argument |
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186 |
""" |
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187 |
try: |
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188 |
value = int(self.get(name, default)) |
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189 |
except ValueError: |
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190 |
value = default |
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|
191 |
if max_value != None: |
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192 |
value = min(value, max_value) |
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|
193 |
if min_value != None: |
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194 |
value = max(value, min_value) |
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195 |
return value |
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|
196 |
|
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197 |
|
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|
198 |
class Response(object): |
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199 |
"""Abstraction for an HTTP response. |
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|
200 |
|
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|
201 |
Properties: |
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202 |
out: file pointer for the output stream |
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203 |
headers: wsgiref.headers.Headers instance representing the output headers |
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204 |
""" |
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205 |
def __init__(self): |
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206 |
"""Constructs a response with the default settings.""" |
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207 |
self.out = StringIO.StringIO() |
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208 |
self.__wsgi_headers = [] |
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209 |
self.headers = wsgiref.headers.Headers(self.__wsgi_headers) |
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210 |
self.headers['Content-Type'] = 'text/html; charset=utf-8' |
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|
211 |
self.headers['Cache-Control'] = 'no-cache' |
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212 |
self.set_status(200) |
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213 |
|
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|
214 |
def set_status(self, code, message=None): |
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215 |
"""Sets the HTTP status code of this response. |
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|
216 |
|
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217 |
Args: |
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218 |
message: the HTTP status string to use |
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219 |
|
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220 |
If no status string is given, we use the default from the HTTP/1.1 |
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221 |
specification. |
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222 |
""" |
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223 |
if not message: |
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224 |
message = Response.http_status_message(code) |
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225 |
self.__status = (code, message) |
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226 |
|
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|
227 |
def clear(self): |
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|
228 |
"""Clears all data written to the output stream so that it is empty.""" |
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|
229 |
self.out.seek(0) |
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|
230 |
self.out.truncate(0) |
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|
231 |
|
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|
232 |
def wsgi_write(self, start_response): |
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|
233 |
"""Writes this response using WSGI semantics with the given WSGI function. |
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|
234 |
|
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|
235 |
Args: |
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|
236 |
start_response: the WSGI-compatible start_response function |
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|
237 |
""" |
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|
238 |
body = self.out.getvalue() |
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|
239 |
if isinstance(body, unicode): |
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|
240 |
body = body.encode('utf-8') |
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|
241 |
elif self.headers.get('Content-Type', '').endswith('; charset=utf-8'): |
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|
242 |
try: |
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|
243 |
body.decode('utf-8') |
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|
244 |
except UnicodeError, e: |
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|
245 |
logging.warning('Response written is not UTF-8: %s', e) |
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|
246 |
|
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|
247 |
self.headers['Content-Length'] = str(len(body)) |
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|
248 |
write = start_response('%d %s' % self.__status, self.__wsgi_headers) |
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|
249 |
write(body) |
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|
250 |
self.out.close() |
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|
251 |
|
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|
252 |
def http_status_message(code): |
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|
253 |
"""Returns the default HTTP status message for the given code. |
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|
254 |
|
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|
255 |
Args: |
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|
256 |
code: the HTTP code for which we want a message |
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|
257 |
""" |
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|
258 |
if not Response.__HTTP_STATUS_MESSAGES.has_key(code): |
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|
259 |
raise Error('Invalid HTTP status code: %d' % code) |
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|
260 |
return Response.__HTTP_STATUS_MESSAGES[code] |
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|
261 |
http_status_message = staticmethod(http_status_message) |
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|
262 |
|
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|
263 |
__HTTP_STATUS_MESSAGES = { |
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|
264 |
100: 'Continue', |
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|
265 |
101: 'Switching Protocols', |
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|
266 |
200: 'OK', |
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|
267 |
201: 'Created', |
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|
268 |
202: 'Accepted', |
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|
269 |
203: 'Non-Authoritative Information', |
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|
270 |
204: 'No Content', |
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|
271 |
205: 'Reset Content', |
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|
272 |
206: 'Partial Content', |
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|
273 |
300: 'Multiple Choices', |
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|
274 |
301: 'Moved Permanently', |
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|
275 |
302: 'Moved Temporarily', |
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|
276 |
303: 'See Other', |
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|
277 |
304: 'Not Modified', |
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|
278 |
305: 'Use Proxy', |
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|
279 |
306: 'Unused', |
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|
280 |
307: 'Temporary Redirect', |
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|
281 |
400: 'Bad Request', |
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|
282 |
401: 'Unauthorized', |
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changeset
|
283 |
402: 'Payment Required', |
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changeset
|
284 |
403: 'Forbidden', |
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|
285 |
404: 'Not Found', |
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changeset
|
286 |
405: 'Method Not Allowed', |
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diff
changeset
|
287 |
406: 'Not Acceptable', |
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diff
changeset
|
288 |
407: 'Proxy Authentication Required', |
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parents:
diff
changeset
|
289 |
408: 'Request Time-out', |
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diff
changeset
|
290 |
409: 'Conflict', |
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changeset
|
291 |
410: 'Gone', |
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parents:
diff
changeset
|
292 |
411: 'Length Required', |
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diff
changeset
|
293 |
412: 'Precondition Failed', |
620f9b141567
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parents:
diff
changeset
|
294 |
413: 'Request Entity Too Large', |
620f9b141567
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diff
changeset
|
295 |
414: 'Request-URI Too Large', |
620f9b141567
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parents:
diff
changeset
|
296 |
415: 'Unsupported Media Type', |
620f9b141567
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parents:
diff
changeset
|
297 |
416: 'Requested Range Not Satisfiable', |
620f9b141567
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parents:
diff
changeset
|
298 |
417: 'Expectation Failed', |
620f9b141567
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parents:
diff
changeset
|
299 |
500: 'Internal Server Error', |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
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parents:
diff
changeset
|
300 |
501: 'Not Implemented', |
620f9b141567
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
301 |
502: 'Bad Gateway', |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
302 |
503: 'Service Unavailable', |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
303 |
504: 'Gateway Time-out', |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
304 |
505: 'HTTP Version not supported' |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
305 |
} |
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parents:
diff
changeset
|
306 |
|
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parents:
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changeset
|
307 |
|
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parents:
diff
changeset
|
308 |
class RequestHandler(object): |
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changeset
|
309 |
"""Our base HTTP request handler. Clients should subclass this class. |
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changeset
|
310 |
|
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parents:
diff
changeset
|
311 |
Subclasses should override get(), post(), head(), options(), etc to handle |
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|
312 |
different HTTP methods. |
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changeset
|
313 |
""" |
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parents:
diff
changeset
|
314 |
def initialize(self, request, response): |
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changeset
|
315 |
"""Initializes this request handler with the given Request and Response.""" |
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changeset
|
316 |
self.request = request |
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changeset
|
317 |
self.response = response |
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changeset
|
318 |
|
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changeset
|
319 |
def get(self, *args): |
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parents:
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|
320 |
"""Handler method for GET requests.""" |
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parents:
diff
changeset
|
321 |
self.error(405) |
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parents:
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changeset
|
322 |
|
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parents:
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changeset
|
323 |
def post(self, *args): |
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parents:
diff
changeset
|
324 |
"""Handler method for POST requests.""" |
620f9b141567
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parents:
diff
changeset
|
325 |
self.error(405) |
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parents:
diff
changeset
|
326 |
|
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parents:
diff
changeset
|
327 |
def head(self, *args): |
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parents:
diff
changeset
|
328 |
"""Handler method for HEAD requests.""" |
620f9b141567
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parents:
diff
changeset
|
329 |
self.error(405) |
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parents:
diff
changeset
|
330 |
|
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parents:
diff
changeset
|
331 |
def options(self, *args): |
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parents:
diff
changeset
|
332 |
"""Handler method for OPTIONS requests.""" |
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parents:
diff
changeset
|
333 |
self.error(405) |
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parents:
diff
changeset
|
334 |
|
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parents:
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changeset
|
335 |
def put(self, *args): |
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parents:
diff
changeset
|
336 |
"""Handler method for PUT requests.""" |
620f9b141567
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parents:
diff
changeset
|
337 |
self.error(405) |
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parents:
diff
changeset
|
338 |
|
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parents:
diff
changeset
|
339 |
def delete(self, *args): |
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
340 |
"""Handler method for DELETE requests.""" |
620f9b141567
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
341 |
self.error(405) |
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|
342 |
|
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|
343 |
def trace(self, *args): |
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|
344 |
"""Handler method for TRACE requests.""" |
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parents:
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|
345 |
self.error(405) |
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parents:
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|
346 |
|
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parents:
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|
347 |
def error(self, code): |
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|
348 |
"""Clears the response output stream and sets the given HTTP error code. |
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|
349 |
|
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changeset
|
350 |
Args: |
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parents:
diff
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|
351 |
code: the HTTP status error code (e.g., 501) |
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parents:
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|
352 |
""" |
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|
353 |
self.response.set_status(code) |
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parents:
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|
354 |
self.response.clear() |
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parents:
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|
355 |
|
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parents:
diff
changeset
|
356 |
def redirect(self, uri, permanent=False): |
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|
357 |
"""Issues an HTTP redirect to the given relative URL. |
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parents:
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changeset
|
358 |
|
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parents:
diff
changeset
|
359 |
Args: |
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parents:
diff
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|
360 |
uri: a relative or absolute URI (e.g., '../flowers.html') |
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diff
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|
361 |
permanent: if true, we use a 301 redirect instead of a 302 redirect |
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parents:
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|
362 |
""" |
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parents:
diff
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|
363 |
if permanent: |
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parents:
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changeset
|
364 |
self.response.set_status(301) |
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parents:
diff
changeset
|
365 |
else: |
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parents:
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|
366 |
self.response.set_status(302) |
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parents:
diff
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|
367 |
absolute_url = urlparse.urljoin(self.request.uri, uri) |
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parents:
diff
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|
368 |
self.response.headers['Location'] = str(absolute_url) |
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parents:
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|
369 |
self.response.clear() |
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parents:
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changeset
|
370 |
|
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parents:
diff
changeset
|
371 |
def handle_exception(self, exception, debug_mode): |
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|
372 |
"""Called if this handler throws an exception during execution. |
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|
373 |
|
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parents:
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changeset
|
374 |
The default behavior is to call self.error(500) and print a stack trace |
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parents:
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|
375 |
if debug_mode is True. |
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|
376 |
|
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changeset
|
377 |
Args: |
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|
378 |
exception: the exception that was thrown |
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parents:
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changeset
|
379 |
debug_mode: True if the web application is running in debug mode |
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parents:
diff
changeset
|
380 |
""" |
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parents:
diff
changeset
|
381 |
self.error(500) |
828
f5fd65cc3bf3
Load /Users/solydzajs/Downloads/google_appengine into
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parents:
297
diff
changeset
|
382 |
logging.exception(exception) |
109
620f9b141567
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parents:
diff
changeset
|
383 |
if debug_mode: |
828
f5fd65cc3bf3
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297
diff
changeset
|
384 |
lines = ''.join(traceback.format_exception(*sys.exc_info())) |
109
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parents:
diff
changeset
|
385 |
self.response.clear() |
828
f5fd65cc3bf3
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297
diff
changeset
|
386 |
self.response.out.write('<pre>%s</pre>' % (cgi.escape(lines, quote=True))) |
109
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parents:
diff
changeset
|
387 |
|
620f9b141567
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parents:
diff
changeset
|
388 |
@classmethod |
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diff
changeset
|
389 |
def get_url(cls, *args, **kargs): |
620f9b141567
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parents:
diff
changeset
|
390 |
"""Returns the url for the given handler. |
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parents:
diff
changeset
|
391 |
|
620f9b141567
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parents:
diff
changeset
|
392 |
The default implementation uses the patterns passed to the active |
620f9b141567
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parents:
diff
changeset
|
393 |
WSGIApplication and the django urlresolvers module to create a url. |
620f9b141567
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parents:
diff
changeset
|
394 |
However, it is different from urlresolvers.reverse() in the following ways: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
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parents:
diff
changeset
|
395 |
- It does not try to resolve handlers via module loading |
620f9b141567
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
396 |
- It does not support named arguments |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
397 |
- It performs some post-prosessing on the url to remove some regex |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
398 |
operators that urlresolvers.reverse_helper() seems to miss. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
399 |
- It will try to fill in the left-most missing arguments with the args |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
400 |
used in the active request. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
401 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
402 |
Args: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
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parents:
diff
changeset
|
403 |
args: Parameters for the url pattern's groups. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
404 |
kwargs: Optionally contains 'implicit_args' that can either be a boolean |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
405 |
or a tuple. When it is True, it will use the arguments to the |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
406 |
active request as implicit arguments. When it is False (default), |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
407 |
it will not use any implicit arguments. When it is a tuple, it |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
408 |
will use the tuple as the implicit arguments. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
409 |
the left-most args if some are missing from args. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
410 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
411 |
Returns: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
412 |
The url for this handler/args combination. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
413 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
414 |
Raises: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
415 |
NoUrlFoundError: No url pattern for this handler has the same |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
416 |
number of args that were passed in. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
417 |
""" |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
418 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
419 |
app = WSGIApplication.active_instance |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
420 |
pattern_map = app._pattern_map |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
421 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
422 |
implicit_args = kargs.get('implicit_args', ()) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
423 |
if implicit_args == True: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
424 |
implicit_args = app.current_request_args |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
425 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
426 |
min_params = len(args) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
427 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
428 |
urlresolvers = None |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
429 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
430 |
for pattern_tuple in pattern_map.get(cls, ()): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
431 |
num_params_in_pattern = pattern_tuple[1] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
432 |
if num_params_in_pattern < min_params: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
433 |
continue |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
434 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
435 |
if urlresolvers is None: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
436 |
from django.core import urlresolvers |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
437 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
438 |
try: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
439 |
num_implicit_args = max(0, num_params_in_pattern - len(args)) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
440 |
merged_args = implicit_args[:num_implicit_args] + args |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
441 |
url = urlresolvers.reverse_helper(pattern_tuple[0], *merged_args) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
442 |
url = url.replace('\\', '') |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
443 |
url = url.replace('?', '') |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
444 |
return url |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
445 |
except urlresolvers.NoReverseMatch: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
446 |
continue |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
447 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
448 |
logging.warning('get_url failed for Handler name: %r, Args: %r', |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
449 |
cls.__name__, args) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
450 |
raise NoUrlFoundError |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
451 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
452 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
453 |
class WSGIApplication(object): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
454 |
"""Wraps a set of webapp RequestHandlers in a WSGI-compatible application. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
455 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
456 |
To use this class, pass a list of (URI regular expression, RequestHandler) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
457 |
pairs to the constructor, and pass the class instance to a WSGI handler. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
458 |
See the example in the module comments for details. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
459 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
460 |
The URL mapping is first-match based on the list ordering. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
461 |
""" |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
462 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
463 |
def __init__(self, url_mapping, debug=False): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
464 |
"""Initializes this application with the given URL mapping. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
465 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
466 |
Args: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
467 |
url_mapping: list of (URI, RequestHandler) pairs (e.g., [('/', ReqHan)]) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
468 |
debug: if true, we send Python stack traces to the browser on errors |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
469 |
""" |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
470 |
self._init_url_mappings(url_mapping) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
471 |
self.__debug = debug |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
472 |
WSGIApplication.active_instance = self |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
473 |
self.current_request_args = () |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
474 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
475 |
def __call__(self, environ, start_response): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
476 |
"""Called by WSGI when a request comes in.""" |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
477 |
request = Request(environ) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
478 |
response = Response() |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
479 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
480 |
WSGIApplication.active_instance = self |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
481 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
482 |
handler = None |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
483 |
groups = () |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
484 |
for regexp, handler_class in self._url_mapping: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
485 |
match = regexp.match(request.path) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
486 |
if match: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
487 |
handler = handler_class() |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
488 |
handler.initialize(request, response) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
489 |
groups = match.groups() |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
490 |
break |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
491 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
492 |
self.current_request_args = groups |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
493 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
494 |
if handler: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
495 |
try: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
496 |
method = environ['REQUEST_METHOD'] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
497 |
if method == 'GET': |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
498 |
handler.get(*groups) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
499 |
elif method == 'POST': |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
500 |
handler.post(*groups) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
501 |
elif method == 'HEAD': |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
502 |
handler.head(*groups) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
503 |
elif method == 'OPTIONS': |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
504 |
handler.options(*groups) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
505 |
elif method == 'PUT': |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
506 |
handler.put(*groups) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
507 |
elif method == 'DELETE': |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
508 |
handler.delete(*groups) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
509 |
elif method == 'TRACE': |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
510 |
handler.trace(*groups) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
511 |
else: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
512 |
handler.error(501) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
513 |
except Exception, e: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
514 |
handler.handle_exception(e, self.__debug) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
515 |
else: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
516 |
response.set_status(404) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
517 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
518 |
response.wsgi_write(start_response) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
519 |
return [''] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
520 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
521 |
def _init_url_mappings(self, handler_tuples): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
522 |
"""Initializes the maps needed for mapping urls to handlers and handlers |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
523 |
to urls. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
524 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
525 |
Args: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
526 |
handler_tuples: list of (URI, RequestHandler) pairs. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
527 |
""" |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
528 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
529 |
handler_map = {} |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
530 |
pattern_map = {} |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
531 |
url_mapping = [] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
532 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
533 |
for regexp, handler in handler_tuples: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
534 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
535 |
handler_map[handler.__name__] = handler |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
536 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
537 |
if not regexp.startswith('^'): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
538 |
regexp = '^' + regexp |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
539 |
if not regexp.endswith('$'): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
540 |
regexp += '$' |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
541 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
542 |
compiled = re.compile(regexp) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
543 |
url_mapping.append((compiled, handler)) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
544 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
545 |
num_groups = len(RE_FIND_GROUPS.findall(regexp)) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
546 |
handler_patterns = pattern_map.setdefault(handler, []) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
547 |
handler_patterns.append((compiled, num_groups)) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
548 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
549 |
self._handler_map = handler_map |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
550 |
self._pattern_map = pattern_map |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
551 |
self._url_mapping = url_mapping |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
552 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
553 |
def get_registered_handler_by_name(self, handler_name): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
554 |
"""Returns the handler given the handler's name. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
555 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
556 |
This uses the application's url mapping. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
557 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
558 |
Args: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
559 |
handler_name: The __name__ of a handler to return. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
560 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
561 |
Returns: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
562 |
The handler with the given name. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
563 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
564 |
Raises: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
565 |
KeyError: If the handler name is not found in the parent application. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
566 |
""" |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
567 |
try: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
568 |
return self._handler_map[handler_name] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
569 |
except: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
570 |
logging.error('Handler does not map to any urls: %s', handler_name) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
571 |
raise |