Mercurial > cpython-lru_cache-weakref

annotate Lib/SimpleXMLRPCServer.py @ 32527:0da660e05e69 legacy-trunk

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"#if WITH_THREAD" is incorrect; must be #ifdef instead; WITH_THREAD isn't always set to an integer value when it's defined.
author Tim Peters <tim.peters@gmail.com>
date Wed, 07 Jul 2004 20:42:07 +0000
parents 19bb1b2fb233
children 89faacd9ec76
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 """Simple XML-RPC Server.
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2
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3 This module can be used to create simple XML-RPC servers
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4 by creating a server and either installing functions, a
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5 class instance, or by extending the SimpleXMLRPCServer
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6 class.
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7
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8 It can also be used to handle XML-RPC requests in a CGI
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9 environment using CGIXMLRPCRequestHandler.
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10
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11 A list of possible usage patterns follows:
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12
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13 1. Install functions:
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14
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15 server = SimpleXMLRPCServer(("localhost", 8000))
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16 server.register_function(pow)
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17 server.register_function(lambda x,y: x+y, 'add')
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18 server.serve_forever()
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19
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20 2. Install an instance:
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21
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22 class MyFuncs:
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23 def __init__(self):
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24 # make all of the string functions available through
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25 # string.func_name
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26 import string
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27 self.string = string
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28 def _listMethods(self):
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29 # implement this method so that system.listMethods
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30 # knows to advertise the strings methods
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31 return list_public_methods(self) + \
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32 ['string.' + method for method in list_public_methods(self.string)]
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33 def pow(self, x, y): return pow(x, y)
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34 def add(self, x, y) : return x + y
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35
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36 server = SimpleXMLRPCServer(("localhost", 8000))
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37 server.register_introspection_functions()
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38 server.register_instance(MyFuncs())
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39 server.serve_forever()
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40
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41 3. Install an instance with custom dispatch method:
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42
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43 class Math:
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44 def _listMethods(self):
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45 # this method must be present for system.listMethods
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46 # to work
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47 return ['add', 'pow']
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48 def _methodHelp(self, method):
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49 # this method must be present for system.methodHelp
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50 # to work
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51 if method == 'add':
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52 return "add(2,3) => 5"
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53 elif method == 'pow':
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54 return "pow(x, y[, z]) => number"
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55 else:
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56 # By convention, return empty
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57 # string if no help is available
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58 return ""
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59 def _dispatch(self, method, params):
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60 if method == 'pow':
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61 return pow(*params)
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62 elif method == 'add':
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63 return params[0] + params[1]
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64 else:
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65 raise 'bad method'
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66
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67 server = SimpleXMLRPCServer(("localhost", 8000))
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68 server.register_introspection_functions()
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69 server.register_instance(Math())
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70 server.serve_forever()
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71
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72 4. Subclass SimpleXMLRPCServer:
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73
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74 class MathServer(SimpleXMLRPCServer):
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75 def _dispatch(self, method, params):
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76 try:
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77 # We are forcing the 'export_' prefix on methods that are
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78 # callable through XML-RPC to prevent potential security
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79 # problems
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80 func = getattr(self, 'export_' + method)
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81 except AttributeError:
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82 raise Exception('method "%s" is not supported' % method)
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83 else:
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84 return func(*params)
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85
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86 def export_add(self, x, y):
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87 return x + y
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88
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89 server = MathServer(("localhost", 8000))
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90 server.serve_forever()
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91
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92 5. CGI script:
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93
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94 server = CGIXMLRPCRequestHandler()
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95 server.register_function(pow)
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96 server.handle_request()
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97 """
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98
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99 # Written by Brian Quinlan (brian@sweetapp.com).
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100 # Based on code written by Fredrik Lundh.
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101
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102 import xmlrpclib
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103 from xmlrpclib import Fault
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104 import SocketServer
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105 import BaseHTTPServer
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106 import sys
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107 import os
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108
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109 def resolve_dotted_attribute(obj, attr):
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110 """resolve_dotted_attribute(a, 'b.c.d') => a.b.c.d
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111
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112 Resolves a dotted attribute name to an object. Raises
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113 an AttributeError if any attribute in the chain starts with a '_'.
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114 """
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115
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116 for i in attr.split('.'):
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117 if i.startswith('_'):
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118 raise AttributeError(
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119 'attempt to access private attribute "%s"' % i
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120 )
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121 else:
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122 obj = getattr(obj,i)
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123 return obj
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124
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125 def list_public_methods(obj):
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126 """Returns a list of attribute strings, found in the specified
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127 object, which represent callable attributes"""
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128
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129 return [member for member in dir(obj)
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130 if not member.startswith('_') and
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131 callable(getattr(obj, member))]
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132
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133 def remove_duplicates(lst):
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134 """remove_duplicates([2,2,2,1,3,3]) => [3,1,2]
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135
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136 Returns a copy of a list without duplicates. Every list
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137 item must be hashable and the order of the items in the
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138 resulting list is not defined.
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139 """
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140 u = {}
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141 for x in lst:
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142 u[x] = 1
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143
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144 return u.keys()
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145
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146 class SimpleXMLRPCDispatcher:
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147 """Mix-in class that dispatches XML-RPC requests.
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148
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149 This class is used to register XML-RPC method handlers
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150 and then to dispatch them. There should never be any
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151 reason to instantiate this class directly.
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152 """
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153
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154 def __init__(self):
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155 self.funcs = {}
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156 self.instance = None
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157
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158 def register_instance(self, instance):
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159 """Registers an instance to respond to XML-RPC requests.
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160
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161 Only one instance can be installed at a time.
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162
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163 If the registered instance has a _dispatch method then that
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164 method will be called with the name of the XML-RPC method and
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165 it's parameters as a tuple
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166 e.g. instance._dispatch('add',(2,3))
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167
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168 If the registered instance does not have a _dispatch method
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169 then the instance will be searched to find a matching method
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170 and, if found, will be called. Methods beginning with an '_'
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171 are considered private and will not be called by
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172 SimpleXMLRPCServer.
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173
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174 If a registered function matches a XML-RPC request, then it
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175 will be called instead of the registered instance.
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176 """
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177
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178 self.instance = instance
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179
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180 def register_function(self, function, name = None):
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181 """Registers a function to respond to XML-RPC requests.
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182
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183 The optional name argument can be used to set a Unicode name
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184 for the function.
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185 """
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186
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187 if name is None:
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188 name = function.__name__
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189 self.funcs[name] = function
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190
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191 def register_introspection_functions(self):
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192 """Registers the XML-RPC introspection methods in the system
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193 namespace.
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194
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195 see http://xmlrpc.usefulinc.com/doc/reserved.html
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196 """
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197
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198 self.funcs.update({'system.listMethods' : self.system_listMethods,
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199 'system.methodSignature' : self.system_methodSignature,
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200 'system.methodHelp' : self.system_methodHelp})
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201
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202 def register_multicall_functions(self):
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203 """Registers the XML-RPC multicall method in the system
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204 namespace.
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205
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206 see http://www.xmlrpc.com/discuss/msgReader$1208"""
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207
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208 self.funcs.update({'system.multicall' : self.system_multicall})
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209
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210 def _marshaled_dispatch(self, data, dispatch_method = None):
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211 """Dispatches an XML-RPC method from marshalled (XML) data.
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212
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213 XML-RPC methods are dispatched from the marshalled (XML) data
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214 using the _dispatch method and the result is returned as
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215 marshalled data. For backwards compatibility, a dispatch
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216 function can be provided as an argument (see comment in
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217 SimpleXMLRPCRequestHandler.do_POST) but overriding the
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218 existing method through subclassing is the prefered means
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219 of changing method dispatch behavior.
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220 """
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221
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222 params, method = xmlrpclib.loads(data)
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223
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224 # generate response
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225 try:
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226 if dispatch_method is not None:
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227 response = dispatch_method(method, params)
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228 else:
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229 response = self._dispatch(method, params)
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230 # wrap response in a singleton tuple
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231 response = (response,)
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232 response = xmlrpclib.dumps(response, methodresponse=1)
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233 except Fault, fault:
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234 response = xmlrpclib.dumps(fault)
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235 except:
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236 # report exception back to server
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237 response = xmlrpclib.dumps(
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238 xmlrpclib.Fault(1, "%s:%s" % (sys.exc_type, sys.exc_value))
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239 )
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240
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241 return response
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242
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243 def system_listMethods(self):
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244 """system.listMethods() => ['add', 'subtract', 'multiple']
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245
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246 Returns a list of the methods supported by the server."""
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247
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248 methods = self.funcs.keys()
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249 if self.instance is not None:
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250 # Instance can implement _listMethod to return a list of
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251 # methods
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252 if hasattr(self.instance, '_listMethods'):
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253 methods = remove_duplicates(
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254 methods + self.instance._listMethods()
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255 )
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256 # if the instance has a _dispatch method then we
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257 # don't have enough information to provide a list
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258 # of methods
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259 elif not hasattr(self.instance, '_dispatch'):
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260 methods = remove_duplicates(
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261 methods + list_public_methods(self.instance)
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262 )
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263 methods.sort()
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264 return methods
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265
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266 def system_methodSignature(self, method_name):
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267 """system.methodSignature('add') => [double, int, int]
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268
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269 Returns a list describing the signiture of the method. In the
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270 above example, the add method takes two integers as arguments
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271 and returns a double result.
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272
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273 This server does NOT support system.methodSignature."""
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274
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275 # See http://xmlrpc.usefulinc.com/doc/sysmethodsig.html
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276
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277 return 'signatures not supported'
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278
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279 def system_methodHelp(self, method_name):
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280 """system.methodHelp('add') => "Adds two integers together"
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281
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282 Returns a string containing documentation for the specified method."""
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283
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284 method = None
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285 if self.funcs.has_key(method_name):
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286 method = self.funcs[method_name]
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287 elif self.instance is not None:
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288 # Instance can implement _methodHelp to return help for a method
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289 if hasattr(self.instance, '_methodHelp'):
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290 return self.instance._methodHelp(method_name)
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291 # if the instance has a _dispatch method then we
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292 # don't have enough information to provide help
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293 elif not hasattr(self.instance, '_dispatch'):
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294 try:
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295 method = resolve_dotted_attribute(
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296 self.instance,
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297 method_name
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298 )
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299 except AttributeError:
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300 pass
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301
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302 # Note that we aren't checking that the method actually
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303 # be a callable object of some kind
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304 if method is None:
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305 return ""
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306 else:
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307 import pydoc
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308 return pydoc.getdoc(method)
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309
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310 def system_multicall(self, call_list):
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311 """system.multicall([{'methodName': 'add', 'params': [2, 2]}, ...]) => \
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312 [[4], ...]
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313
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314 Allows the caller to package multiple XML-RPC calls into a single
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315 request.
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316
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317 See http://www.xmlrpc.com/discuss/msgReader$1208
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318 """
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319
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320 results = []
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321 for call in call_list:
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322 method_name = call['methodName']
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323 params = call['params']
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324
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325 try:
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326 # XXX A marshalling error in any response will fail the entire
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327 # multicall. If someone cares they should fix this.
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328 results.append([self._dispatch(method_name, params)])
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329 except Fault, fault:
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330 results.append(
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331 {'faultCode' : fault.faultCode,
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332 'faultString' : fault.faultString}
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333 )
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334 except:
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335 results.append(
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336 {'faultCode' : 1,
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337 'faultString' : "%s:%s" % (sys.exc_type, sys.exc_value)}
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338 )
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339 return results
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340
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341 def _dispatch(self, method, params):
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342 """Dispatches the XML-RPC method.
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343
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344 XML-RPC calls are forwarded to a registered function that
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345 matches the called XML-RPC method name. If no such function
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346 exists then the call is forwarded to the registered instance,
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347 if available.
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348
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349 If the registered instance has a _dispatch method then that
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350 method will be called with the name of the XML-RPC method and
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351 it's parameters as a tuple
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352 e.g. instance._dispatch('add',(2,3))
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353
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354 If the registered instance does not have a _dispatch method
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355 then the instance will be searched to find a matching method
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356 and, if found, will be called.
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357
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358 Methods beginning with an '_' are considered private and will
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359 not be called.
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360 """
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361
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362 func = None
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363 try:
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364 # check to see if a matching function has been registered
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365 func = self.funcs[method]
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366 except KeyError:
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367 if self.instance is not None:
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368 # check for a _dispatch method
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369 if hasattr(self.instance, '_dispatch'):
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370 return self.instance._dispatch(method, params)
19937
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Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
371 else:
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
372 # call instance method directly
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
373 try:
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Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
374 func = resolve_dotted_attribute(
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
375 self.instance,
19937
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
376 method
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
377 )
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
378 except AttributeError:
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
379 pass
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
380
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
381 if func is not None:
27249
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
382 return func(*params)
19937
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
383 else:
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
384 raise Exception('method "%s" is not supported' % method)
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Tim Peters <tim.peters@gmail.com>
parents: 27249
diff changeset
385
27249
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
386 class SimpleXMLRPCRequestHandler(BaseHTTPServer.BaseHTTPRequestHandler):
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
387 """Simple XML-RPC request handler class.
19937
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Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
388
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7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
389 Handles all HTTP POST requests and attempts to decode them as
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
390 XML-RPC requests.
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
391 """
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
392
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
393 def do_POST(self):
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
394 """Handles the HTTP POST request.
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
395
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
396 Attempts to interpret all HTTP POST requests as XML-RPC calls,
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
397 which are forwarded to the server's _dispatch method for handling.
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
398 """
27507
d9d57f5f98cd Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 27249
diff changeset
399
27249
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
400 try:
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
401 # get arguments
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
402 data = self.rfile.read(int(self.headers["content-length"]))
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
403 # In previous versions of SimpleXMLRPCServer, _dispatch
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
404 # could be overridden in this class, instead of in
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
405 # SimpleXMLRPCDispatcher. To maintain backwards compatibility,
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
406 # check to see if a subclass implements _dispatch and dispatch
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
407 # using that method if present.
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
408 response = self.server._marshaled_dispatch(
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
409 data, getattr(self, '_dispatch', None)
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
410 )
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
411 except: # This should only happen if the module is buggy
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
412 # internal error, report as HTTP server error
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
413 self.send_response(500)
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
414 self.end_headers()
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
415 else:
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
416 # got a valid XML RPC response
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
417 self.send_response(200)
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
418 self.send_header("Content-type", "text/xml")
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
419 self.send_header("Content-length", str(len(response)))
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
420 self.end_headers()
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
421 self.wfile.write(response)
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
422
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
423 # shut down the connection
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
424 self.wfile.flush()
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
425 self.connection.shutdown(1)
27507
d9d57f5f98cd Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 27249
diff changeset
426
19937
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
427 def log_request(self, code='-', size='-'):
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
428 """Selectively log an accepted request."""
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
429
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
430 if self.server.logRequests:
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
431 BaseHTTPServer.BaseHTTPRequestHandler.log_request(self, code, size)
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
432
27507
d9d57f5f98cd Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 27249
diff changeset
433 class SimpleXMLRPCServer(SocketServer.TCPServer,
27249
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
434 SimpleXMLRPCDispatcher):
19937
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
435 """Simple XML-RPC server.
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
436
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
437 Simple XML-RPC server that allows functions and a single instance
27249
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
438 to be installed to handle requests. The default implementation
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
439 attempts to dispatch XML-RPC calls to the functions or instance
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
440 installed in the server. Override the _dispatch method inhereted
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
441 from SimpleXMLRPCDispatcher to change this behavior.
19937
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
442 """
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
443
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
444 def __init__(self, addr, requestHandler=SimpleXMLRPCRequestHandler,
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
445 logRequests=1):
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
446 self.logRequests = logRequests
27507
d9d57f5f98cd Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 27249
diff changeset
447
27249
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
448 SimpleXMLRPCDispatcher.__init__(self)
19937
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
449 SocketServer.TCPServer.__init__(self, addr, requestHandler)
27507
d9d57f5f98cd Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 27249
diff changeset
450
27249
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
451 class CGIXMLRPCRequestHandler(SimpleXMLRPCDispatcher):
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
452 """Simple handler for XML-RPC data passed through CGI."""
27507
d9d57f5f98cd Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 27249
diff changeset
453
27249
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
454 def __init__(self):
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
455 SimpleXMLRPCDispatcher.__init__(self)
19937
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
456
27249
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
457 def handle_xmlrpc(self, request_text):
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
458 """Handle a single XML-RPC request"""
27507
d9d57f5f98cd Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 27249
diff changeset
459
27249
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
460 response = self._marshaled_dispatch(request_text)
27507
d9d57f5f98cd Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 27249
diff changeset
461
27249
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
462 print 'Content-Type: text/xml'
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
463 print 'Content-Length: %d' % len(response)
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
464 print
28912
4ef108f8181f Patch #727805: Remove extra line ending from CGI responses.
Martin v. Löwis <martin@v.loewis.de>
parents: 27507
diff changeset
465 sys.stdout.write(response)
19937
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
466
27249
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
467 def handle_get(self):
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
468 """Handle a single HTTP GET request.
19937
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
469
27249
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
470 Default implementation indicates an error because
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
471 XML-RPC uses the POST method.
19937
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
472 """
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
473
27249
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
474 code = 400
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
475 message, explain = \
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
476 BaseHTTPServer.BaseHTTPRequestHandler.responses[code]
27507
d9d57f5f98cd Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 27249
diff changeset
477
27249
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
478 response = BaseHTTPServer.DEFAULT_ERROR_MESSAGE % \
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
479 {
27507
d9d57f5f98cd Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 27249
diff changeset
480 'code' : code,
d9d57f5f98cd Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 27249
diff changeset
481 'message' : message,
27249
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
482 'explain' : explain
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
483 }
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
484 print 'Status: %d %s' % (code, message)
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
485 print 'Content-Type: text/html'
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
486 print 'Content-Length: %d' % len(response)
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
487 print
29655
f9b8d4bf08fb fix problems found by pychecker
Neal Norwitz <nnorwitz@gmail.com>
parents: 28912
diff changeset
488 sys.stdout.write(response)
27507
d9d57f5f98cd Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 27249
diff changeset
489
27249
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
490 def handle_request(self, request_text = None):
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
491 """Handle a single XML-RPC request passed through a CGI post method.
27507
d9d57f5f98cd Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 27249
diff changeset
492
27249
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
493 If no XML data is given then it is read from stdin. The resulting
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
494 XML-RPC response is printed to stdout along with the correct HTTP
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
495 headers.
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
496 """
27507
d9d57f5f98cd Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 27249
diff changeset
497
27249
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
498 if request_text is None and \
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
499 os.environ.get('REQUEST_METHOD', None) == 'GET':
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
500 self.handle_get()
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
501 else:
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
502 # POST data is normally available through stdin
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
503 if request_text is None:
27507
d9d57f5f98cd Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 27249
diff changeset
504 request_text = sys.stdin.read()
19937
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
505
27249
7c34e5bf2e22 Patch #473586: Implement CGIXMLRPCRequestHandler.
Martin v. Löwis <martin@v.loewis.de>
parents: 20174
diff changeset
506 self.handle_xmlrpc(request_text)
27507
d9d57f5f98cd Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 27249
diff changeset
507
19937
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
508 if __name__ == '__main__':
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
509 server = SimpleXMLRPCServer(("localhost", 8000))
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
510 server.register_function(pow)
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
511 server.register_function(lambda x,y: x+y, 'add')
896f2d1e2f46 Brian Quinlan's XML-RPC server framework.
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
512 server.serve_forever()