80
79
String. Response "Location" header value. Used with HTTP redirect
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List of strings. Write a list of URLs to CSS files here, and they
83
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
90
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 JS function names, and they
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will be added as window.addListener('load', ..., false); calls
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in the head, if write_html_head_foot is True.
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This is the propper way to specify functions that need to run at
84
101
# Special code for an OK response.
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106
# HTTP status codes
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HTTP_SWITCHING_PROTOCOLS = 101
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HTTP_PROCESSING = 102
114
HTTP_NON_AUTHORITATIVE = 203
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HTTP_NO_CONTENT = 204
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HTTP_RESET_CONTENT = 205
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HTTP_PARTIAL_CONTENT = 206
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HTTP_MULTI_STATUS = 207
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HTTP_MULTIPLE_CHOICES = 300
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HTTP_MOVED_PERMANENTLY = 301
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121
HTTP_MOVED_TEMPORARILY = 302
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HTTP_NOT_MODIFIED = 304
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HTTP_TEMPORARY_REDIRECT = 307
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HTTP_BAD_REQUEST = 400
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HTTP_UNAUTHORIZED = 401
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HTTP_PAYMENT_REQUIRED = 402
93
129
HTTP_FORBIDDEN = 403
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130
HTTP_NOT_FOUND = 404
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HTTP_METHOD_NOT_ALLOWED = 405
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HTTP_NOT_ACCEPTABLE = 406
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HTTP_PROXY_AUTHENTICATION_REQUIRED= 407
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HTTP_REQUEST_TIME_OUT = 408
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HTTP_LENGTH_REQUIRED = 411
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HTTP_PRECONDITION_FAILED = 412
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HTTP_REQUEST_ENTITY_TOO_LARGE = 413
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HTTP_REQUEST_URI_TOO_LARGE = 414
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HTTP_UNSUPPORTED_MEDIA_TYPE = 415
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HTTP_RANGE_NOT_SATISFIABLE = 416
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HTTP_EXPECTATION_FAILED = 417
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HTTP_UNPROCESSABLE_ENTITY = 422
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HTTP_FAILED_DEPENDENCY = 424
95
147
HTTP_INTERNAL_SERVER_ERROR = 500
97
def __init__(self, req, config):
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"""Create an IVLE request from a mod_python one.
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@param req: A mod_python request.
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@param config: An IVLE configuration.
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HTTP_NOT_IMPLEMENTED = 501
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HTTP_BAD_GATEWAY = 502
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HTTP_SERVICE_UNAVAILABLE = 503
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HTTP_GATEWAY_TIME_OUT = 504
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HTTP_VERSION_NOT_SUPPORTED = 505
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HTTP_VARIANT_ALSO_VARIES = 506
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HTTP_INSUFFICIENT_STORAGE = 507
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HTTP_NOT_EXTENDED = 510
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def __init__(self, req):
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"""Builds an IVLE request object from a mod_python request object.
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This results in an object with all of the necessary methods and
162
req: A mod_python request object.
104
165
# Methods are mostly wrappers around the Apache request object
105
166
self.apache_req = req
107
167
self.headers_written = False
109
169
# Determine if the browser used the public host name to make the
110
170
# request (in which case we are in "public mode")
111
if req.hostname == config['urls']['public_host']:
171
if req.hostname == ivle.conf.public_host:
112
172
self.publicmode = True
114
174
self.publicmode = False
118
178
self.uri = req.uri
119
179
# Split the given path into the app (top-level dir) and sub-path
120
180
# (after first stripping away the root directory)
121
(self.app, self.path) = (ivle.util.split_path(req.uri))
181
path = ivle.util.unmake_path(req.uri)
182
(self.app, self.path) = (ivle.util.split_path(path))
123
184
self.hostname = req.hostname
124
185
self.headers_in = req.headers_in
127
188
# Open a database connection and transaction, keep it around for users
128
189
# of the Request object to use
129
self.store = ivle.database.get_store(config)
190
self.store = ivle.database.get_store()
131
192
# Default values for the output members
132
193
self.status = Request.HTTP_OK
133
194
self.content_type = None # Use Apache's default
134
195
self.location = None
198
self.scripts_init = []
135
199
# In some cases we don't want the template JS (such as the username
136
200
# and public FQDN) in the output HTML. In that case, set this to 0.
137
201
self.write_javascript_settings = True
229
293
mod_python.Cookie.add_cookie(self.apache_req, cookie, value, **attributes)
231
def make_path(self, path):
232
"""Prepend the IVLE URL prefix to the given path.
234
This is used when generating URLs to send to the client.
236
This method is DEPRECATED. We no longer support use of a prefix.
238
return os.path.join(self.config['urls']['root'], path)
240
295
def get_session(self):
241
296
"""Returns a mod_python Session object for this request.
242
297
Note that this is dependent on mod_python and may need to change
243
interface if porting away from mod_python.
245
IMPORTANT: Call unlock() on the session as soon as you are done with
246
it! If you don't, all other requests will block!
298
interface if porting away from mod_python."""
248
299
# Cache the session object and set the timeout to 24 hours.
249
300
if not hasattr(self, 'session'):
250
301
self.session = mod_python.Session.FileSession(self.apache_req,
269
320
self.got_common_vars = True
270
321
return self.apache_req.subprocess_env
324
def get_http_codename(code):
325
"""Given a HTTP error code int, returns a (name, description)
326
pair, suitable for displaying to the user.
327
May return (None,None) if code is unknown.
328
Only lists common 4xx and 5xx codes (since this is just used
329
to display throw_error error messages).
332
return http_codenames[code]
336
# Human strings for HTTP response codes
338
Request.HTTP_BAD_REQUEST:
340
"Your browser sent a request IVLE did not understand."),
341
Request.HTTP_UNAUTHORIZED:
343
"You are not allowed to view this part of IVLE."),
344
Request.HTTP_FORBIDDEN:
346
"You are not allowed to view this part of IVLE."),
347
Request.HTTP_NOT_FOUND:
349
"The application or file you requested does not exist."),
350
Request.HTTP_METHOD_NOT_ALLOWED:
351
("Method Not Allowed",
352
"Your browser is interacting with IVLE in the wrong way."
353
"This is probably a bug in IVLE. "
354
"Please report it to the administrators."),
355
Request.HTTP_INTERNAL_SERVER_ERROR:
356
("Internal Server Error",
357
"An unknown error occured in IVLE."),
358
Request.HTTP_NOT_IMPLEMENTED:
360
"The application or file you requested has not been implemented "
362
Request.HTTP_SERVICE_UNAVAILABLE:
363
("Service Unavailable",
364
"IVLE is currently experiencing technical difficulties. "
365
"Please try again later."),