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annotate roundup/xmlrpc.py @ 4124:0ad79301f055

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Restrict user creation rights in XMLRPC frontend.
author Stefan Seefeld <stefan@seefeld.name>
date Wed, 17 Jun 2009 01:26:04 +0000
parents bbab97f8ffb2
children 3c4545f55949 4498f5252f8b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #
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2 # Copyright (C) 2007 Stefan Seefeld
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3 # All rights reserved.
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4 # For license terms see the file COPYING.txt.
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5 #
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6
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7 from roundup import hyperdb
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8 from roundup.cgi.exceptions import *
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9 from roundup.exceptions import UsageError
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10 from roundup.date import Date, Range, Interval
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11 from roundup import actions
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12 from SimpleXMLRPCServer import *
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13
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14 def translate(value):
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15 """Translate value to becomes valid for XMLRPC transmission."""
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16
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17 if isinstance(value, (Date, Range, Interval)):
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18 return repr(value)
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19 elif type(value) is list:
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20 return [translate(v) for v in value]
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21 elif type(value) is tuple:
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22 return tuple([translate(v) for v in value])
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23 elif type(value) is dict:
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24 return dict([[translate(k), translate(value[k])] for k in value])
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25 else:
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26 return value
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27
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28
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29 def props_from_args(db, cl, args, itemid=None):
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30 """Construct a list of properties from the given arguments,
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31 and return them after validation."""
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32
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33 props = {}
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34 for arg in args:
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35 if arg.find('=') == -1:
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36 raise UsageError, 'argument "%s" not propname=value'%arg
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37 l = arg.split('=')
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38 if len(l) < 2:
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39 raise UsageError, 'argument "%s" not propname=value'%arg
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40 key, value = l[0], '='.join(l[1:])
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41 if value:
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42 try:
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43 props[key] = hyperdb.rawToHyperdb(db, cl, itemid,
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44 key, value)
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45 except hyperdb.HyperdbValueError, message:
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46 raise UsageError, message
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47 else:
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48 props[key] = None
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49
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50 return props
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51
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52 class RoundupInstance:
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53 """The RoundupInstance provides the interface accessible through
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54 the Python XMLRPC mapping."""
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55
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56 def __init__(self, db, actions, translator):
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57
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58 self.db = db
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59 self.actions = actions
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60 self.translator = translator
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61
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62 def list(self, classname, propname=None):
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63 cl = self.db.getclass(classname)
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64 if not propname:
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65 propname = cl.labelprop()
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66 result = [cl.get(itemid, propname)
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67 for itemid in cl.list()
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68 if self.db.security.hasPermission('View', self.db.getuid(),
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69 classname, propname, itemid)
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70 ]
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71 return result
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72
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73 def filter(self, classname, search_matches, filterspec,
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74 sort=[], group=[]):
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75 cl = self.db.getclass(classname)
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76 result = cl.filter(search_matches, filterspec, sort=sort, group=group)
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77 return result
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78
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79 def display(self, designator, *properties):
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80 classname, itemid = hyperdb.splitDesignator(designator)
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81 cl = self.db.getclass(classname)
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82 props = properties and list(properties) or cl.properties.keys()
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83 props.sort()
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84 for p in props:
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85 if not self.db.security.hasPermission('View', self.db.getuid(),
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86 classname, p, itemid):
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87 raise Unauthorised('Permission to view %s of %s denied'%
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88 (p, designator))
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89 result = [(prop, cl.get(itemid, prop)) for prop in props]
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90 return dict(result)
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91
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92 def create(self, classname, *args):
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93
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94 if not self.db.security.hasPermission('Create', self.db.getuid(), classname):
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95 raise Unauthorised('Permission to create %s denied'%classname)
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96
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97 cl = self.db.getclass(classname)
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98
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99 # convert types
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100 props = props_from_args(self.db, cl, args)
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101
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102 # check for the key property
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103 key = cl.getkey()
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104 if key and not props.has_key(key):
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105 raise UsageError, 'you must provide the "%s" property.'%key
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106
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107 for key in props:
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108 if not self.db.security.hasPermission('Edit', self.db.getuid(), classname,
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109 property=key):
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110 raise Unauthorised('Permission to create %s denied'%classname)
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111
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112 # do the actual create
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113 try:
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114 result = cl.create(**props)
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115 except (TypeError, IndexError, ValueError), message:
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116 raise UsageError, message
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117 return result
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118
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119 def set(self, designator, *args):
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120
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121 classname, itemid = hyperdb.splitDesignator(designator)
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122 cl = self.db.getclass(classname)
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123 props = props_from_args(self.db, cl, args, itemid) # convert types
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124 for p in props.iterkeys():
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125 if not self.db.security.hasPermission('Edit', self.db.getuid(),
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126 classname, p, itemid):
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127 raise Unauthorised('Permission to edit %s of %s denied'%
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128 (p, designator))
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129 try:
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130 return cl.set(itemid, **props)
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131 except (TypeError, IndexError, ValueError), message:
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132 raise UsageError, message
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133
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134
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135 builtin_actions = {'retire': actions.Retire}
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136
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137 def action(self, name, *args):
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138 """Execute a named action."""
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139
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140 if name in self.actions:
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141 action_type = self.actions[name]
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142 elif name in self.builtin_actions:
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143 action_type = self.builtin_actions[name]
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144 else:
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145 raise Exception('action "%s" is not supported %s' % (name, ','.join(self.actions.keys())))
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146 action = action_type(self.db, self.translator)
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147 return action.execute(*args)
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148
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149
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150 class RoundupDispatcher(SimpleXMLRPCDispatcher):
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151 """RoundupDispatcher bridges from cgi.client to RoundupInstance.
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152 It expects user authentication to be done."""
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153
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154 def __init__(self, db, actions, translator,
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155 allow_none=False, encoding=None):
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156
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157 SimpleXMLRPCDispatcher.__init__(self, allow_none, encoding)
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158 self.register_instance(RoundupInstance(db, actions, translator))
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159
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160
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161 def dispatch(self, input):
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162 return self._marshaled_dispatch(input)
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163
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164 def _dispatch(self, method, params):
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165
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166 retn = SimpleXMLRPCDispatcher._dispatch(self, method, params)
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167 retn = translate(retn)
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168 return retn
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169
Roundup Issue Tracker: http://roundup-tracker.org/