wsdl/gw2wsdl.py

   1 #!/usr/bin/python
   2 #
   3 # Sapan Bhatia <sapanb@cs.princeton.edu>
   4 #
   5 # Generates a WSDL for geniwrapper
   6
   7
   8 import os, sys
   9 import time
  10 import pdb
  11 import xml.dom.minidom
  12 import xml.dom.ext
  13 import apistub
  14 import inspect
  15
  16 from types import *
  17 from optparse import OptionParser
  18
  19 from sfa.trust.auth import Auth
  20 from sfa.util.parameter import Parameter,Mixed
  21
  22 import globals
  23
  24 complex_types = {}
  25 services = {}
  26
  27 num_types = 0
  28
  29 class SoapError(Exception):
  30      def __init__(self, value):
  31          self.value = value
  32      def __str__(self):
  33          return repr(self.value)
  34 try:
  35     set
  36 except NameError:
  37     from sets import Set
  38     set = Set
  39
  40 def fold_complex_type_names(acc, arg):
  41     name = arg.doc
  42     if (type(acc)==list):
  43         acc.append(name)
  44     else:
  45         python_is_braindead = acc.doc
  46         acc = [python_is_braindead,name]
  47     return acc
  48
  49 def fold_complex_type(acc, arg):
  50     global complex_types
  51     name = name_complex_type(arg)
  52     complex_types[arg]=name
  53     if (type(acc)==list):
  54         acc.append(name)
  55     else:
  56         python_is_braindead = name_complex_type(acc)
  57         acc = [python_is_braindead,name]
  58     return acc
  59
  60 def name_complex_type(arg):
  61     global num_types
  62     global types
  63
  64     types_section = types.getElementsByTagName("xsd:schema")[0]
  65
  66     #pdb.set_trace()
  67     if (isinstance(arg, Mixed)):
  68         inner_types = reduce(fold_complex_type, arg)
  69         inner_names = reduce(fold_complex_type_names, arg)
  70         if (inner_types[-1]=="none"):
  71             inner_types=inner_types[:-1]
  72             min_args = 0
  73         else:
  74             min_args = 1
  75
  76         num_types=num_types+1
  77         type_name = "Type%d"%num_types
  78         complex_type = types_section.appendChild(types.createElement("xsd:complexType"))
  79         complex_type.setAttribute("name", type_name)
  80
  81         choice = complex_type.appendChild(types.createElement("xsd:choice"))
  82         for n,t in zip(inner_names,inner_types):
  83             element = choice.appendChild(types.createElement("element"))
  84             element.setAttribute("name", n)
  85             element.setAttribute("type", "%s"%t)
  86             element.setAttribute("minOccurs","%d"%min_args)
  87         return "xsdl:%s"%type_name
  88     elif (isinstance(arg, Parameter)):
  89         return (name_simple_type(arg.type))
  90     elif type(arg) == ListType or type(arg) == TupleType:
  91         inner_type = name_complex_type(arg[0])
  92         num_types=num_types+1
  93         type_name = "Type%d"%num_types
  94         complex_type = types_section.appendChild(types.createElement("xsd:simpleType"))
  95         complex_type.setAttribute("name", type_name)
  96         complex_content = complex_type.appendChild(types.createElement("xsd:list"))
  97         complex_content.setAttribute("itemType",inner_type)
  98         return "xsdl:%s"%type_name
  99     elif type(arg) == DictType or arg == DictType or (inspect.isclass(arg) and issubclass(arg, dict)):
 100         num_types=num_types+1
 101         type_name = "Type%d"%num_types
 102         complex_type = types_section.appendChild(types.createElement("xsd:complexType"))
 103         complex_type.setAttribute("name", type_name)
 104         complex_content = complex_type.appendChild(types.createElement("xsd:sequence"))
 105
 106         for k in arg.fields:
 107             inner_type = name_complex_type(arg.fields[k])
 108             element=complex_content.appendChild(types.createElement("xsd:element"))
 109             element.setAttribute("name",k)
 110             element.setAttribute("type",inner_type)
 111
 112         return "xsdl:%s"%type_name
 113     else:
 114         return (name_simple_type(arg))
 115
 116 def name_simple_type(arg_type):
 117     # A Parameter is reported as an instance, even though it is serialized as a type <>
 118     if type(arg_type) == InstanceType:
 119         return (name_simple_type(arg_type.type))
 120     if arg_type == None:
 121         return "none"
 122     if arg_type == DictType:
 123         return "xsd:anyType"
 124     elif arg_type == IntType or arg_type == LongType:
 125         return "xsd:int"
 126     elif arg_type == bool:
 127         return "xsd:boolean"
 128     elif arg_type == FloatType:
 129         return "xsd:double"
 130     elif arg_type in StringTypes:
 131         return "xsd:string"
 132     else:
 133        pdb.set_trace()
 134        raise SoapError, "Cannot handle %s objects" % arg_type
 135
 136 def param_type(arg):
 137     return (name_complex_type(arg))
 138
 139 def add_wsdl_ports_and_bindings (wsdl):
 140     for method in apistub.methods:
 141
 142         # Skip system. methods
 143         if "system." in method:
 144             continue
 145
 146         function = apistub.callable(method) # Commented documentation
 147         #lines = ["// " + line.strip() for line in function.__doc__.strip().split("\n")]
 148         #print "\n".join(lines)
 149         #print
 150
 151
 152         in_el = wsdl.firstChild.appendChild(wsdl.createElement("message"))
 153         in_el.setAttribute("name", method + "_in")
 154
 155         for service_name in function.interfaces:
 156             if (services.has_key(service_name)):
 157                 if (not method in services[service_name]):
 158                     services[service_name].append(method)
 159             else:
 160                 services[service_name]=[method]
 161
 162         # Arguments
 163
 164         if (function.accepts):
 165             (min_args, max_args, defaults) = function.args()
 166             for (argname,argtype) in zip(max_args,function.accepts):
 167                 arg_part = in_el.appendChild(wsdl.createElement("part"))
 168                 arg_part.setAttribute("name", argname)
 169                 arg_part.setAttribute("type", param_type(argtype))
 170
 171         # Return type
 172         return_type = function.returns
 173         out_el = wsdl.firstChild.appendChild(wsdl.createElement("message"))
 174         out_el.setAttribute("name", method + "_out")
 175         ret_part = out_el.appendChild(wsdl.createElement("part"))
 176         ret_part.setAttribute("name", "returnvalue")
 177         ret_part.setAttribute("type", param_type(return_type))
 178
 179         # Port connecting arguments with return type
 180
 181         port_el = wsdl.firstChild.appendChild(wsdl.createElement("portType"))
 182         port_el.setAttribute("name", method + "_port")
 183
 184         op_el = port_el.appendChild(wsdl.createElement("operation"))
 185         op_el.setAttribute("name", method)
 186         inp_el=wsdl.createElement("input")
 187         inp_el.setAttribute("message","tns:" + method + "_in")
 188         inp_el.setAttribute("name",method+"_request")
 189         op_el.appendChild(inp_el)
 190         out_el = wsdl.createElement("output")
 191         out_el.setAttribute("message","tns:" + method + "_out")
 192         out_el.setAttribute("name",method+"_response")
 193         op_el.appendChild(out_el)
 194
 195         # Bindings
 196
 197         bind_el = wsdl.firstChild.appendChild(wsdl.createElement("binding"))
 198         bind_el.setAttribute("name", method + "_binding")
 199         bind_el.setAttribute("type", "tns:" + method + "_port")
 200
 201         soap_bind = bind_el.appendChild(wsdl.createElement("soap:binding"))
 202         soap_bind.setAttribute("style", "rpc")
 203         soap_bind.setAttribute("transport","http://schemas.xmlsoap.org/soap/http")
 204
 205
 206         wsdl_op = bind_el.appendChild(wsdl.createElement("operation"))
 207         wsdl_op.setAttribute("name", method)
 208         wsdl_op.appendChild(wsdl.createElement("soap:operation")).setAttribute("soapAction",
 209                 "urn:" + method)
 210
 211
 212         wsdl_input = wsdl_op.appendChild(wsdl.createElement("input"))
 213         input_soap_body = wsdl_input.appendChild(wsdl.createElement("soap:body"))
 214         input_soap_body.setAttribute("use", "encoded")
 215         input_soap_body.setAttribute("namespace", "urn:" + method)
 216         input_soap_body.setAttribute("encodingStyle","http://schemas.xmlsoap.org/soap/encoding/")
 217
 218
 219         wsdl_output = wsdl_op.appendChild(wsdl.createElement("output"))
 220         output_soap_body = wsdl_output.appendChild(wsdl.createElement("soap:body"))
 221         output_soap_body.setAttribute("use", "encoded")
 222         output_soap_body.setAttribute("namespace", "urn:" + method)
 223         output_soap_body.setAttribute("encodingStyle","http://schemas.xmlsoap.org/soap/encoding/")
 224
 225
 226 def add_wsdl_service(wsdl):
 227     for service in services.keys():
 228         global interface_options
 229         if (getattr(interface_options,service)):
 230             service_el = wsdl.firstChild.appendChild(wsdl.createElement("service"))
 231             service_el.setAttribute("name", service)
 232
 233             for method in services[service]:
 234                     name=method
 235                     servport_el = service_el.appendChild(wsdl.createElement("port"))
 236                     servport_el.setAttribute("name", name + "_port")
 237                     servport_el.setAttribute("binding", "tns:" + name + "_binding")
 238
 239                     soapaddress = servport_el.appendChild(wsdl.createElement("soap:address"))
 240                     soapaddress.setAttribute("location", "%s/%s" % (globals.plc_ns,service))
 241
 242
 243 def get_wsdl_definitions():
 244     wsdl_text_header = """
 245         <wsdl:definitions
 246         name="geniwrapper_autogenerated"
 247         targetNamespace="%s/2009/07/sfa.wsdl"
 248         xmlns="http://schemas.xmlsoap.org/wsdl/"
 249         xmlns:xsd="http://www.w3.org/2001/XMLSchema"
 250         xmlns:xsdl="%s/2009/07/schema"
 251         xmlns:tns="%s/2009/07/sfa.wsdl"
 252         xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
 253         xmlns:soapenc="http://schemas.xmlsoap.org/wsdl/soap/encoding"
 254         xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"/>
 255         """ % (globals.plc_ns,globals.plc_ns,globals.plc_ns)
 256
 257     wsdl = xml.dom.minidom.parseString(wsdl_text_header)
 258
 259     return wsdl
 260
 261 def get_wsdl_definitions_and_types():
 262     wsdl_text_header = """
 263     <wsdl:definitions
 264         name="geniwrapper_autogenerated"
 265         targetNamespace="%s/2009/07/sfa.wsdl"
 266         xmlns="http://schemas.xmlsoap.org/wsdl/"
 267         xmlns:xsd="http://www.w3.org/2001/XMLSchema"
 268         xmlns:xsdl="%s/2009/07/schema"
 269         xmlns:tns="%s/2009/07/sfa.wsdl"
 270         xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
 271         xmlns:soapenc="http://schemas.xmlsoap.org/wsdl/soap/encoding"
 272         xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/">
 273         <types>
 274             <xsd:schema xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="%s/2009/07/schema"/>
 275         </types>
 276     </wsdl:definitions> """ % (globals.plc_ns, globals.plc_ns, globals.plc_ns, globals.plc_ns)
 277     wsdl = xml.dom.minidom.parseString(wsdl_text_header)
 278     return wsdl
 279
 280 def main():
 281     global types
 282     global interface_options
 283
 284     parser = OptionParser()
 285     parser.add_option("-r", "--registry", dest="registry", action="store_true",
 286                               help="Generate registry.wsdl", metavar="FILE")
 287     parser.add_option("-s", "--slice-manager",
 288                               action="store_true", dest="slicemgr",
 289                               help="Generate sm.wsdl")
 290     parser.add_option("-a", "--aggregate", action="store_true", dest="aggregate",
 291                               help="Generate am.wsdl")
 292
 293     (interface_options, args) = parser.parse_args()
 294     types = get_wsdl_definitions_and_types()
 295     wsdl = get_wsdl_definitions()
 296     add_wsdl_ports_and_bindings(wsdl)
 297     wsdl_types = wsdl.importNode(types.getElementsByTagName("types")[0], True)
 298     wsdl.firstChild.appendChild(wsdl_types)
 299     add_wsdl_service(wsdl)
 300
 301     xml.dom.ext.PrettyPrint(wsdl)
 302
 303 if __name__ == "__main__":
 304         main()