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annotate roundup/xmlrpc.py @ 4449:3f251efd5f48

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Add "lookup" method to xmlrpc interface (Ralf Schlatterbeck)
author Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
date Fri, 29 Oct 2010 10:41:39 +0000
parents 261c9f913ff7
children c9b85ca1f985
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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 from xmlrpclib import Binary
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14
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15 def translate(value):
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16 """Translate value to becomes valid for XMLRPC transmission."""
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17
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18 if isinstance(value, (Date, Range, Interval)):
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19 return repr(value)
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20 elif type(value) is list:
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21 return [translate(v) for v in value]
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22 elif type(value) is tuple:
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23 return tuple([translate(v) for v in value])
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24 elif type(value) is dict:
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25 return dict([[translate(k), translate(value[k])] for k in value])
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26 else:
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27 return value
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29
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30 def props_from_args(db, cl, args, itemid=None):
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31 """Construct a list of properties from the given arguments,
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32 and return them after validation."""
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33
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34 props = {}
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35 for arg in args:
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36 if isinstance(arg, Binary):
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37 arg = arg.data
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38 try :
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39 key, value = arg.split('=', 1)
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40 except ValueError :
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41 raise UsageError, 'argument "%s" not propname=value'%arg
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42 if isinstance(key, unicode):
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43 try:
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44 key = key.encode ('ascii')
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45 except UnicodeEncodeError:
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46 raise UsageError, 'argument %r is no valid ascii keyword'%key
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47 if isinstance(value, unicode):
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48 value = value.encode('utf-8')
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49 if value:
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50 try:
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51 props[key] = hyperdb.rawToHyperdb(db, cl, itemid,
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52 key, value)
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53 except hyperdb.HyperdbValueError, message:
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54 raise UsageError, message
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55 else:
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56 props[key] = None
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57
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58 return props
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59
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60 class RoundupInstance:
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61 """The RoundupInstance provides the interface accessible through
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62 the Python XMLRPC mapping."""
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63
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64 def __init__(self, db, actions, translator):
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65
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66 self.db = db
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67 self.actions = actions
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68 self.translator = translator
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69
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70 def schema(self):
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71 s = {}
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72 for c in self.db.classes:
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73 cls = self.db.classes[c]
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74 props = [(n,repr(v)) for n,v in cls.properties.items()]
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75 s[c] = props
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76 return s
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77
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78 def list(self, classname, propname=None):
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79 cl = self.db.getclass(classname)
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80 if not propname:
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81 propname = cl.labelprop()
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82 result = [cl.get(itemid, propname)
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83 for itemid in cl.list()
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84 if self.db.security.hasPermission('View', self.db.getuid(),
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85 classname, propname, itemid)
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86 ]
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87 return result
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88
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89 def filter(self, classname, search_matches, filterspec,
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90 sort=[], group=[]):
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91 cl = self.db.getclass(classname)
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92 uid = self.db.getuid()
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93 security = self.db.security
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94 filterspec = security.filterFilterspec (uid, classname, filterspec)
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95 sort = security.filterSortspec (uid, classname, sort)
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96 group = security.filterSortspec (uid, classname, group)
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97 result = cl.filter(search_matches, filterspec, sort=sort, group=group)
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98 check = security.hasPermission
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99 x = [id for id in result if check('View', uid, classname, itemid=id)]
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100 return x
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101
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102 def lookup(self, classname, key):
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103 cl = self.db.getclass(classname)
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104 uid = self.db.getuid()
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105 prop = cl.getkey()
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106 check = self.db.security.hasSearchPermission
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107 if not check(uid, classname, 'id') or not check(uid, classname, prop):
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108 raise Unauthorised('Permission to search %s denied'%classname)
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109 return cl.lookup(key)
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110
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111 def display(self, designator, *properties):
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112 classname, itemid = hyperdb.splitDesignator(designator)
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113 cl = self.db.getclass(classname)
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114 props = properties and list(properties) or cl.properties.keys()
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115 props.sort()
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116 for p in props:
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117 if not self.db.security.hasPermission('View', self.db.getuid(),
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118 classname, p, itemid):
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119 raise Unauthorised('Permission to view %s of %s denied'%
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120 (p, designator))
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121 result = [(prop, cl.get(itemid, prop)) for prop in props]
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122 return dict(result)
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123
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124 def create(self, classname, *args):
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125
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126 if not self.db.security.hasPermission('Create', self.db.getuid(), classname):
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127 raise Unauthorised('Permission to create %s denied'%classname)
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128
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129 cl = self.db.getclass(classname)
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130
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131 # convert types
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132 props = props_from_args(self.db, cl, args)
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133
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134 # check for the key property
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135 key = cl.getkey()
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136 if key and not props.has_key(key):
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137 raise UsageError, 'you must provide the "%s" property.'%key
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138
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139 for key in props:
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140 if not self.db.security.hasPermission('Create', self.db.getuid(),
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141 classname, property=key):
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142 raise Unauthorised('Permission to create %s.%s denied'%(classname, key))
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143
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144 # do the actual create
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145 try:
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146 result = cl.create(**props)
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147 self.db.commit()
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148 except (TypeError, IndexError, ValueError), message:
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149 raise UsageError, message
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150 return result
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151
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152 def set(self, designator, *args):
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153
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154 classname, itemid = hyperdb.splitDesignator(designator)
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155 cl = self.db.getclass(classname)
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156 props = props_from_args(self.db, cl, args, itemid) # convert types
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157 for p in props.iterkeys():
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158 if not self.db.security.hasPermission('Edit', self.db.getuid(),
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159 classname, p, itemid):
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160 raise Unauthorised('Permission to edit %s of %s denied'%
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161 (p, designator))
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162 try:
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163 result = cl.set(itemid, **props)
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164 self.db.commit()
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165 except (TypeError, IndexError, ValueError), message:
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166 raise UsageError, message
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167 return result
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168
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169
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170 builtin_actions = {'retire': actions.Retire}
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171
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172 def action(self, name, *args):
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173 """Execute a named action."""
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174
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175 if name in self.actions:
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176 action_type = self.actions[name]
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177 elif name in self.builtin_actions:
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178 action_type = self.builtin_actions[name]
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179 else:
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180 raise Exception('action "%s" is not supported %s' % (name, ','.join(self.actions.keys())))
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181 action = action_type(self.db, self.translator)
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182 return action.execute(*args)
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183
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184
4079
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185 class RoundupDispatcher(SimpleXMLRPCDispatcher):
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186 """RoundupDispatcher bridges from cgi.client to RoundupInstance.
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187 It expects user authentication to be done."""
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188
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189 def __init__(self, db, actions, translator,
4079
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190 allow_none=False, encoding=None):
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191
4256
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diff changeset
192 try:
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193 # python2.5 and beyond
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194 SimpleXMLRPCDispatcher.__init__(self, allow_none, encoding)
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195 except TypeError:
712549bb7fe5 Small fix for CGI-handling of XMLRPC requests for python2.4...
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196 # python2.4
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197 SimpleXMLRPCDispatcher.__init__(self)
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198 self.register_instance(RoundupInstance(db, actions, translator))
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199
edf526c91412 * Refactor XMLRPC interface.
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200
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201 def dispatch(self, input):
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202 return self._marshaled_dispatch(input)
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203
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204 def _dispatch(self, method, params):
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205
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206 retn = SimpleXMLRPCDispatcher._dispatch(self, method, params)
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207 retn = translate(retn)
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208 return retn
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209
Roundup Issue Tracker: http://roundup-tracker.org/