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1 """Exceptions shared by different cubicweb packages. |
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2 |
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3 |
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4 :organization: Logilab |
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5 :copyright: 2001-2008 LOGILAB S.A. (Paris, FRANCE), all rights reserved. |
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6 :contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr |
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7 """ |
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8 __docformat__ = "restructuredtext en" |
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9 |
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10 from yams import ValidationError |
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11 |
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12 # abstract exceptions ######################################################### |
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13 |
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14 class CubicWebException(Exception): |
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15 """base class for cubicweb server exception""" |
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16 msg = "" |
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17 def __str__(self): |
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18 if self.msg: |
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19 if self.args: |
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20 return self.msg % tuple(self.args) |
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21 return self.msg |
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22 return ' '.join(str(arg) for arg in self.args) |
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23 |
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24 |
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25 class ConfigurationError(CubicWebException): |
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26 """a misconfiguration error""" |
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27 |
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28 class InternalError(CubicWebException): |
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29 """base class for exceptions which should not occurs""" |
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30 |
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31 class SecurityError(CubicWebException): |
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32 """base class for cubicweb server security exception""" |
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33 |
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34 class RepositoryError(CubicWebException): |
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35 """base class for repository exceptions""" |
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36 |
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37 class SourceException(CubicWebException): |
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38 """base class for source exceptions""" |
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39 |
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40 class CubicWebRuntimeError(CubicWebException): |
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41 """base class for runtime exceptions""" |
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42 |
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43 # repository exceptions ####################################################### |
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44 |
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45 class ConnectionError(RepositoryError): |
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46 """raised when a bad connection id is given or when an attempt to establish |
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47 a connection failed""" |
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48 |
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49 class AuthenticationError(ConnectionError): |
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50 """raised when a bad connection id is given or when an attempt to establish |
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51 a connection failed""" |
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52 |
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53 class BadConnectionId(ConnectionError): |
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54 """raised when a bad connection id is given or when an attempt to establish |
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55 a connection failed""" |
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56 |
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57 BadSessionId = BadConnectionId # XXX bw compat for pyro connections |
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58 |
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59 class UnknownEid(RepositoryError): |
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60 """the eid is not defined in the system tables""" |
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61 msg = 'No entity with eid %s in the repository' |
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62 |
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63 class ETypeNotSupportedBySources(RepositoryError, InternalError): |
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64 """no source support an entity type""" |
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65 msg = 'No source supports %r entity\'s type' |
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66 |
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67 class RTypeNotSupportedBySources(RepositoryError, InternalError): |
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68 """no source support a relation type""" |
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69 msg = 'No source supports %r relation\'s type' |
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70 |
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71 |
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72 # security exceptions ######################################################### |
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73 |
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74 class Unauthorized(SecurityError): |
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75 """raised when a user tries to perform an action without sufficient |
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76 credentials |
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77 """ |
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78 msg = 'You are not allowed to perform this operation' |
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79 msg1 = 'You are not allowed to perform %s operation on %s' |
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80 var = None |
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81 #def __init__(self, *args): |
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82 # self.args = args |
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83 |
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84 def __str__(self): |
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85 try: |
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86 if self.args and len(self.args) == 2: |
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87 return self.msg1 % self.args |
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88 if self.args: |
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89 return ' '.join(self.args) |
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90 return self.msg |
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91 except Exception, ex: |
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92 return str(ex) |
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93 |
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94 # source exceptions ########################################################### |
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95 |
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96 class EidNotInSource(SourceException): |
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97 """trying to access an object with a particular eid from a particular |
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98 source has failed |
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99 """ |
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100 msg = 'No entity with eid %s in %s' |
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101 |
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102 |
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103 # registry exceptions ######################################################### |
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104 |
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105 class RegistryException(CubicWebException): |
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106 """raised when an unregistered view is called""" |
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107 |
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108 class RegistryNotFound(RegistryException): |
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109 """raised when an unknown registry is requested |
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110 |
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111 this is usually a programming/typo error... |
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112 """ |
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113 |
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114 class ObjectNotFound(RegistryException): |
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115 """raised when an unregistered object is requested |
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116 |
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117 this may be a programming/typo or a misconfiguration error |
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118 """ |
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119 |
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120 # class ViewNotFound(ObjectNotFound): |
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121 # """raised when an unregistered view is called""" |
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122 |
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123 class NoSelectableObject(RegistryException): |
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124 """some views with the given vid have been found but no |
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125 one is applyable to the result set |
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126 """ |
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127 |
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128 class UnknownProperty(RegistryException): |
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129 """property found in database but unknown in registry""" |
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130 |
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131 # query exception ############################################################# |
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132 |
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133 class QueryError(CubicWebRuntimeError): |
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134 """a query try to do something it shouldn't""" |
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135 |
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136 class NotAnEntity(CubicWebRuntimeError): |
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137 """raised when get_entity is called for a column which doesn't contain |
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138 a non final entity |
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139 """ |
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140 |
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141 # tools exceptions ############################################################ |
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142 |
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143 class ExecutionError(Exception): |
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144 """server execution control error (already started, not running...)""" |
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145 |
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146 # pylint: disable-msg=W0611 |
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147 from logilab.common.clcommands import BadCommandUsage |
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148 |