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| 1 | |
| 2 # Copyright (c) 2001-2004 Twisted Matrix Laboratories. | |
| 3 # See LICENSE for details. | |
| 4 | |
| 5 | |
| 6 """I am the Twisted.Web error resources and exceptions.""" | |
| 7 | |
| 8 #t.w imports | |
| 9 import resource | |
| 10 | |
| 11 from twisted.web import http | |
| 12 | |
| 13 class Error(Exception): | |
| 14 def __init__(self, code, message = None, response = None): | |
| 15 message = message or http.responses.get(code) | |
| 16 Exception.__init__(self, code, message, response) | |
| 17 self.status = code | |
| 18 self.response = response | |
| 19 | |
| 20 def __str__(self): | |
| 21 return '%s %s' % (self[0], self[1]) | |
| 22 | |
| 23 class PageRedirect(Error): | |
| 24 """A request that resulted in a http redirect """ | |
| 25 def __init__(self, code, message = None, response = None, location = None): | |
| 26 message = message or ("%s to %s" % (http.responses.get(code), location)) | |
| 27 Error.__init__(self, code, message, response) | |
| 28 self.location = location | |
| 29 | |
| 30 class ErrorPage(resource.Resource): | |
| 31 def __init__(self, status, brief, detail): | |
| 32 resource.Resource.__init__(self) | |
| 33 self.code = status | |
| 34 self.brief = brief | |
| 35 self.detail = detail | |
| 36 | |
| 37 def render(self, request): | |
| 38 request.setResponseCode(self.code) | |
| 39 request.setHeader("content-type", "text/html") | |
| 40 return ("""<html> | |
| 41 <head><title>%s - %s</title></head> | |
| 42 <body><h1>%s</h1> | |
| 43 <p>%s</p> | |
| 44 </body></html>\n\n""" % | |
| 45 (self.code, self.brief, self.brief, self.detail)) | |
| 46 | |
| 47 def getChild(self, chnam, request): | |
| 48 return self | |
| 49 | |
| 50 | |
| 51 class NoResource(ErrorPage): | |
| 52 def __init__(self, message="Sorry. No luck finding that resource."): | |
| 53 ErrorPage.__init__(self, http.NOT_FOUND, | |
| 54 "No Such Resource", | |
| 55 message) | |
| 56 | |
| 57 class ForbiddenResource(ErrorPage): | |
| 58 def __init__(self, message="Sorry, resource is forbidden."): | |
| 59 ErrorPage.__init__(self, http.FORBIDDEN, | |
| 60 "Forbidden Resource", | |
| 61 message) | |
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