43
42
String. The path specified in the URL *not including* the
44
43
application or the IVLE location prefix. eg. a URL of
45
44
"/ivle/files/joe/myfiles" has a path of "joe/myfiles".
47
User object. Details of the user who is currently logged in, or
46
String. Login name of the user who is currently logged in, or
50
String. Hostname the server is running on.
52
49
Table object representing headers sent by the client.
53
50
headers_out (read, can be written to)
54
51
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).
61
54
Int. Response status number. Use one of the status codes defined
165
158
self.func_write_html_head = write_html_head
166
159
self.headers_written = False
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# 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
175
161
# Inherit values for the input members
176
162
self.method = req.method
177
163
self.uri = req.uri
178
164
# Split the given path into the app (top-level dir) and sub-path
179
165
# (after first stripping away the root directory)
180
path = common.util.unmake_path(req.uri)
185
(self.app, self.path) = (common.util.split_path(path))
187
self.hostname = req.hostname
166
(self.app, self.path) = (
167
common.util.split_path(common.util.unmake_path(req.uri)))
188
169
self.headers_in = req.headers_in
189
170
self.headers_out = req.headers_out
225
205
if not self.headers_written:
226
206
self.__writeheaders()
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)
207
self.apache_req.write(string, flush)
237
210
"""Flushes the output buffer."""
247
220
"""Reads at most len bytes directly from the client. (See mod_python
248
221
Request.read)."""
250
return self.apache_req.read()
223
self.apache_req.read()
252
return self.apache_req.read(len)
225
self.apache_req.read(len)
254
def throw_error(self, httpcode, message=None):
227
def throw_error(self, httpcode):
255
228
"""Writes out an HTTP error of the specified code. Raises an exception
256
229
which is caught by the dispatch or web server, so any code following
257
230
this call will not be executed.
259
232
httpcode: An HTTP response status code. Pass a constant from the
262
raise common.util.IVLEError(httpcode, message)
235
raise mod_python.apache.SERVER_RETURN, httpcode
264
237
def throw_redirect(self, location):
265
238
"""Writes out an HTTP redirect to the specified URL. Raises an
272
245
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)
281
247
def get_session(self):
282
248
"""Returns a mod_python Session object for this request.
283
249
Note that this is dependent on mod_python and may need to change
284
250
interface if porting away from mod_python."""
285
# Cache the session object and set the timeout to 24 hours.
251
# Cache the session object
286
252
if not hasattr(self, 'session'):
287
self.session = Session.FileSession(self.apache_req,
288
timeout = 60 * 60 * 24)
253
self.session = Session.Session(self.apache_req)
289
254
return self.session
291
256
def get_fieldstorage(self):
296
261
if not hasattr(self, 'fields'):
297
262
self.fields = util.FieldStorage(self.apache_req)
298
263
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."),