| commit | author | age | ||
| 0c29cf | 1 | from pyramid.httpexceptions import HTTPBadRequest, HTTPNotFound, HTTPForbidden |
| 4184d9 | 2 | |
| 0c29cf | 3 | NotFound = HTTPNotFound # bw compat |
| MM | 4 | Forbidden = HTTPForbidden # bw compat |
| d96ff9 | 5 | |
| e6c2d2 | 6 | CR = '\n' |
| CM | 7 | |
| 65dee6 | 8 | |
| DS | 9 | class BadCSRFOrigin(HTTPBadRequest): |
| 10 | """ | |
| 11 | This exception indicates the request has failed cross-site request forgery | |
| 12 | origin validation. | |
| 13 | """ | |
| 0c29cf | 14 | |
| 65dee6 | 15 | title = "Bad CSRF Origin" |
| DS | 16 | explanation = ( |
| 17 | "Access is denied. This server can not verify that the origin or " | |
| 18 | "referrer of your request matches the current site. Either your " | |
| 19 | "browser supplied the wrong Origin or Referrer or it did not supply " | |
| 20 | "one at all." | |
| 21 | ) | |
| 22 | ||
| 23 | ||
| 0e2914 | 24 | class BadCSRFToken(HTTPBadRequest): |
| MM | 25 | """ |
| 26 | This exception indicates the request has failed cross-site request | |
| 27 | forgery token validation. | |
| 28 | """ | |
| 0c29cf | 29 | |
| 0e2914 | 30 | title = 'Bad CSRF Token' |
| MM | 31 | explanation = ( |
| 32 | 'Access is denied. This server can not verify that your cross-site ' | |
| 33 | 'request forgery token belongs to your login session. Either you ' | |
| 34 | 'supplied the wrong cross-site request forgery token or your session ' | |
| 35 | 'no longer exists. This may be due to session timeout or because ' | |
| 36 | 'browser is not supplying the credentials required, as can happen ' | |
| 0c29cf | 37 | 'when the browser has cookies turned off.' |
| MM | 38 | ) |
| 39 | ||
| 0e2914 | 40 | |
| 99edc5 | 41 | class PredicateMismatch(HTTPNotFound): |
| d96ff9 | 42 | """ |
| 4d059a | 43 | This exception is raised by multiviews when no view matches |
| DB | 44 | all given predicates. |
| 45 | ||
| 46 | This exception subclasses the :class:`HTTPNotFound` exception for a | |
| 47 | specific reason: if it reaches the main exception handler, it should | |
| 48 | be treated as :class:`HTTPNotFound`` by any exception view | |
| 49 | registrations. Thus, typically, this exception will not be seen | |
| 50 | publicly. | |
| 25c64c | 51 | |
| 4d059a | 52 | However, this exception will be raised if the predicates of all |
| DB | 53 | views configured to handle another exception context cannot be |
| 54 | successfully matched. For instance, if a view is configured to | |
| 55 | handle a context of ``HTTPForbidden`` and the configured with | |
| 56 | additional predicates, then :class:`PredicateMismatch` will be | |
| 57 | raised if: | |
| 58 | ||
| 59 | * An original view callable has raised :class:`HTTPForbidden` (thus | |
| 60 | invoking an exception view); and | |
| 61 | * The given request fails to match all predicates for said | |
| 62 | exception view associated with :class:`HTTPForbidden`. | |
| 63 | ||
| 64 | The same applies to any type of exception being handled by an | |
| 65 | exception view. | |
| d96ff9 | 66 | """ |
| d75fe7 | 67 | |
| 0c29cf | 68 | |
| 0482bd | 69 | class URLDecodeError(UnicodeDecodeError): |
| CM | 70 | """ |
| fd5ae9 | 71 | This exception is raised when :app:`Pyramid` cannot |
| 0482bd | 72 | successfully decode a URL or a URL path segment. This exception |
| 024fd8 | 73 | behaves just like the Python builtin |
| 0482bd | 74 | :exc:`UnicodeDecodeError`. It is a subclass of the builtin |
| CM | 75 | :exc:`UnicodeDecodeError` exception only for identity purposes, |
| 76 | mostly so an exception view can be registered when a URL cannot be | |
| 77 | decoded. | |
| 78 | """ | |
| 79 | ||
| 0c29cf | 80 | |
| 79ef3d | 81 | class ConfigurationError(Exception): |
| a294cd | 82 | """ Raised when inappropriate input values are supplied to an API |
| CM | 83 | method of a :term:`Configurator`""" |
| 0c29cf | 84 | |
| b4c212 | 85 | |
| 79ef3d | 86 | class ConfigurationConflictError(ConfigurationError): |
| CM | 87 | """ Raised when a configuration conflict is detected during action |
| 88 | processing""" | |
| 9b496b | 89 | |
| 79ef3d | 90 | def __init__(self, conflicts): |
| CM | 91 | self._conflicts = conflicts |
| 92 | ||
| 93 | def __str__(self): | |
| 94 | r = ["Conflicting configuration actions"] | |
| 8e606d | 95 | items = sorted(self._conflicts.items()) |
| 79ef3d | 96 | for discriminator, infos in items: |
| 0c29cf | 97 | r.append(" For: %s" % (discriminator,)) |
| 79ef3d | 98 | for info in infos: |
| 8e606d | 99 | for line in str(info).rstrip().split(CR): |
| 25c64c | 100 | r.append(" " + line) |
| 79ef3d | 101 | |
| e6c2d2 | 102 | return CR.join(r) |
| 79ef3d | 103 | |
| CM | 104 | |
| 105 | class ConfigurationExecutionError(ConfigurationError): | |
| 106 | """An error occurred during execution of a configuration action | |
| 107 | """ | |
| 108 | ||
| 109 | def __init__(self, etype, evalue, info): | |
| 110 | self.etype, self.evalue, self.info = etype, evalue, info | |
| 111 | ||
| 112 | def __str__(self): | |
| 113 | return "%s: %s\n in:\n %s" % (self.etype, self.evalue, self.info) | |
| 66fe1d | 114 | |
| e8c66a | 115 | |
| 66fe1d | 116 | class CyclicDependencyError(Exception): |
| CM | 117 | """ The exception raised when the Pyramid topological sorter detects a |
| 118 | cyclic dependency.""" | |
| 0c29cf | 119 | |
| 66fe1d | 120 | def __init__(self, cycles): |
| CM | 121 | self.cycles = cycles |
| 122 | ||
| 123 | def __str__(self): | |
| 124 | L = [] | |
| 125 | cycles = self.cycles | |
| 126 | for cycle in cycles: | |
| 127 | dependent = cycle | |
| 128 | dependees = cycles[cycle] | |
| 129 | L.append('%r sorts before %r' % (dependent, dependees)) | |
| 130 | msg = 'Implicit ordering cycle:' + '; '.join(L) | |
| 131 | return msg | |
