42
43
String. The path specified in the URL *not including* the
43
44
application or the IVLE location prefix. eg. a URL of
44
45
"/ivle/files/joe/myfiles" has a path of "joe/myfiles".
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String. Login name of the user who is currently logged in, or
47
User object. Details of the user who is currently logged in, or
50
String. Hostname the server is running on.
49
52
Table object representing headers sent by the client.
50
53
headers_out (read, can be written to)
51
54
Table object representing headers to be sent to the client.
56
Bool. True if the request came for the "public host" as
57
configured in conf.py. Note that public mode requests do not
58
have an app (app is set to None).
54
61
Int. Response status number. Use one of the status codes defined
158
165
self.func_write_html_head = write_html_head
159
166
self.headers_written = False
168
# Determine if the browser used the public host name to make the
169
# request (in which case we are in "public mode")
170
if req.hostname == conf.public_host:
171
self.publicmode = True
173
self.publicmode = False
161
175
# Inherit values for the input members
162
176
self.method = req.method
163
177
self.uri = req.uri
164
178
# Split the given path into the app (top-level dir) and sub-path
165
179
# (after first stripping away the root directory)
166
(self.app, self.path) = (
167
common.util.split_path(common.util.unmake_path(req.uri)))
180
path = common.util.unmake_path(req.uri)
183
(_, self.path) = (common.util.split_path(path))
185
(self.app, self.path) = (common.util.split_path(path))
187
self.hostname = req.hostname
169
188
self.headers_in = req.headers_in
170
189
self.headers_out = req.headers_out
205
225
if not self.headers_written:
206
226
self.__writeheaders()
207
self.apache_req.write(string, flush)
227
if isinstance(string, unicode):
228
# Encode unicode strings as UTF-8
229
# (Otherwise cannot handle being written to a bytestream)
230
self.apache_req.write(string.encode('utf8'), flush)
232
# 8-bit clean strings just get written directly.
233
# This includes binary strings.
234
self.apache_req.write(string, flush)
210
237
"""Flushes the output buffer."""
220
247
"""Reads at most len bytes directly from the client. (See mod_python
221
248
Request.read)."""
223
self.apache_req.read()
250
return self.apache_req.read()
225
self.apache_req.read(len)
252
return self.apache_req.read(len)
227
def throw_error(self, httpcode):
254
def throw_error(self, httpcode, message=None):
228
255
"""Writes out an HTTP error of the specified code. Raises an exception
229
256
which is caught by the dispatch or web server, so any code following
230
257
this call will not be executed.
232
259
httpcode: An HTTP response status code. Pass a constant from the
235
raise mod_python.apache.SERVER_RETURN, httpcode
262
raise common.util.IVLEError(httpcode, message)
237
264
def throw_redirect(self, location):
238
265
"""Writes out an HTTP redirect to the specified URL. Raises an
245
272
mod_python.util.redirect(self.apache_req, location)
274
def add_cookie(self, cookie, value=None, **attributes):
275
"""Inserts a cookie into this request object's headers."""
277
Cookie.add_cookie(self.apache_req, cookie)
279
Cookie.add_cookie(self.apache_req, cookie, value, **attributes)
247
281
def get_session(self):
248
282
"""Returns a mod_python Session object for this request.
249
283
Note that this is dependent on mod_python and may need to change
250
284
interface if porting away from mod_python."""
251
# Cache the session object
285
# Cache the session object and set the timeout to 24 hours.
252
286
if not hasattr(self, 'session'):
253
self.session = Session.Session(self.apache_req)
287
self.session = Session.FileSession(self.apache_req,
288
timeout = 60 * 60 * 24)
254
289
return self.session
256
291
def get_fieldstorage(self):
261
296
if not hasattr(self, 'fields'):
262
297
self.fields = util.FieldStorage(self.apache_req)
263
298
return self.fields
300
def get_cgi_environ(self):
301
"""Returns the CGI environment emulation for this request. (Calls
302
add_common_vars). The environment is returned as a mapping
303
compatible with os.environ."""
304
if not self.got_common_vars:
305
self.apache_req.add_common_vars()
306
self.got_common_vars = True
307
return self.apache_req.subprocess_env
310
def get_http_codename(code):
311
"""Given a HTTP error code int, returns a (name, description)
312
pair, suitable for displaying to the user.
313
May return (None,None) if code is unknown.
314
Only lists common 4xx and 5xx codes (since this is just used
315
to display throw_error error messages).
318
return http_codenames[code]
322
# Human strings for HTTP response codes
324
Request.HTTP_BAD_REQUEST:
326
"Your browser sent a request IVLE did not understand."),
327
Request.HTTP_UNAUTHORIZED:
329
"You are not allowed to view this part of IVLE."),
330
Request.HTTP_FORBIDDEN:
332
"You are not allowed to view this part of IVLE."),
333
Request.HTTP_NOT_FOUND:
335
"The application or file you requested does not exist."),
336
Request.HTTP_METHOD_NOT_ALLOWED:
337
("Method Not Allowed",
338
"Your browser is interacting with IVLE in the wrong way."
339
"This is probably a bug in IVLE. "
340
"Please report it to the administrators."),
341
Request.HTTP_INTERNAL_SERVER_ERROR:
342
("Internal Server Error",
343
"An unknown error occured in IVLE."),
344
Request.HTTP_NOT_IMPLEMENTED:
346
"The application or file you requested has not been implemented "
348
Request.HTTP_SERVICE_UNAVAILABLE:
349
("Service Unavailable",
350
"IVLE is currently experiencing technical difficulties. "
351
"Please try again later."),