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String. The path specified in the URL *not including* the
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application or the IVLE location prefix. eg. a URL of
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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
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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
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headers_out (read, can be written to)
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Table object representing headers to be sent to the client.
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Bool. True if the request came for the "public host" as
57
configured in conf.py. Note that public mode requests do not
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have an app (app is set to None).
54
61
Int. Response status number. Use one of the status codes defined
62
69
String. HTML page title. Used if write_html_head_foot is True, in
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70
the HTML title element text.
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List of strings. Write a list of URLs to CSS files here, and they
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will be incorporated as <link rel="stylesheet" type="text/css">
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elements in the head, if write_html_head_foot is True.
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URLs should be relative to the IVLE root; they will be fixed up
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List of strings. Write a list of URLs to JS files here, and they
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will be incorporated as <script type="text/javascript"> elements
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in the head, if write_html_head_foot is True.
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URLs should be relative to the IVLE root; they will be fixed up
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write_html_head_foot (write)
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Boolean. If True, dispatch assumes that this is an XHTML page, and
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85
will immediately write a full HTML head, open the body element,
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165
self.func_write_html_head = write_html_head
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166
self.headers_written = False
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# Determine if the browser used the public host name to make the
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# request (in which case we are in "public mode")
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if req.hostname == conf.public_host:
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self.publicmode = True
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self.publicmode = False
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# Inherit values for the input members
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self.method = req.method
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self.uri = req.uri
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# Split the given path into the app (top-level dir) and sub-path
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# (after first stripping away the root directory)
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(self.app, self.path) = (
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common.util.split_path(common.util.unmake_path(req.uri)))
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path = common.util.unmake_path(req.uri)
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(self.app, self.path) = (common.util.split_path(path))
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self.hostname = req.hostname
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188
self.headers_in = req.headers_in
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189
self.headers_out = req.headers_out
162
193
self.content_type = None # Use Apache's default
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194
self.location = None
164
195
self.title = None # Will be set by dispatch before passing to app
165
198
self.write_html_head_foot = False
199
self.got_common_vars = False
167
201
def __writeheaders(self):
168
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"""Writes out the HTTP and HTML headers before any real data is
191
225
if not self.headers_written:
192
226
self.__writeheaders()
193
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)
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# 8-bit clean strings just get written directly.
233
# This includes binary strings.
234
self.apache_req.write(string, flush)
196
237
"""Flushes the output buffer."""
206
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"""Reads at most len bytes directly from the client. (See mod_python
207
248
Request.read)."""
209
self.apache_req.read()
250
return self.apache_req.read()
211
self.apache_req.read(len)
252
return self.apache_req.read(len)
213
def throw_error(self, httpcode):
254
def throw_error(self, httpcode, message=None):
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255
"""Writes out an HTTP error of the specified code. Raises an exception
215
256
which is caught by the dispatch or web server, so any code following
216
257
this call will not be executed.
218
259
httpcode: An HTTP response status code. Pass a constant from the
221
raise mod_python.apache.SERVER_RETURN, httpcode
262
raise common.util.IVLEError(httpcode, message)
223
264
def throw_redirect(self, location):
224
265
"""Writes out an HTTP redirect to the specified URL. Raises an
231
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)
233
281
def get_session(self):
234
282
"""Returns a mod_python Session object for this request.
235
283
Note that this is dependent on mod_python and may need to change
236
284
interface if porting away from mod_python."""
237
# Cache the session object
285
# Cache the session object and set the timeout to 24 hours.
238
286
if not hasattr(self, 'session'):
239
self.session = Session.Session(self.apache_req)
287
self.session = Session.FileSession(self.apache_req,
288
timeout = 60 * 60 * 24)
240
289
return self.session
242
291
def get_fieldstorage(self):
247
296
if not hasattr(self, 'fields'):
248
297
self.fields = util.FieldStorage(self.apache_req)
249
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."),