[6ff0b91] | 1 | #!/usr/local/bin/python |
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| 2 | |
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| 3 | import sys |
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| 4 | |
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| 5 | from BaseHTTPServer import BaseHTTPRequestHandler |
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| 6 | |
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| 7 | from ZSI import Fault, ParseException, FaultFromNotUnderstood, \ |
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| 8 | FaultFromZSIException, FaultFromException, ParsedSoap, SoapWriter |
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| 9 | |
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| 10 | from M2Crypto import SSL |
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| 11 | from M2Crypto.SSL.SSLServer import SSLServer |
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[329f61d] | 12 | import xmlrpclib |
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[6ff0b91] | 13 | |
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| 14 | from optparse import OptionParser |
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| 15 | |
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| 16 | from fedd_util import fedd_ssl_context, fedid |
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[19cc408] | 17 | from fedd_deter_impl import new_feddservice |
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| 18 | from service_error import * |
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[6ff0b91] | 19 | |
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| 20 | # The SSL server here is based on the implementation described at |
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| 21 | # http://www.xml.com/pub/a/ws/2004/01/20/salz.html |
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| 22 | |
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| 23 | # Turn off the matching of hostname to certificate ID |
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| 24 | SSL.Connection.clientPostConnectionCheck = None |
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| 25 | |
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| 26 | class fedd_server(SSLServer): |
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| 27 | def __init__(self, ME, handler, ssl_ctx, impl): |
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| 28 | SSLServer.__init__(self, ME, handler, ssl_ctx) |
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| 29 | self.impl = impl |
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[19cc408] | 30 | self.soap_methods = impl.get_soap_services() |
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| 31 | self.xmlrpc_methods = impl.get_xmlrpc_services() |
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[6ff0b91] | 32 | |
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[329f61d] | 33 | class fedd_soap_handler(BaseHTTPRequestHandler): |
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[6ff0b91] | 34 | server_version = "ZSI/2.0 fedd/0.1 " + BaseHTTPRequestHandler.server_version |
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| 35 | |
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| 36 | def send_xml(self, text, code=200): |
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| 37 | """Send an XML document as reply""" |
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| 38 | self.send_response(code) |
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| 39 | self.send_header('Content-type', 'text/xml; charset="utf-8"') |
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| 40 | self.send_header('Content-Length', str(len(text))) |
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| 41 | self.end_headers() |
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| 42 | self.wfile.write(text) |
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| 43 | self.wfile.flush() |
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| 44 | |
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| 45 | def send_fault(self, f, code=500): |
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| 46 | """Send a SOAP encoded fault as reply""" |
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[0a47d52] | 47 | self.send_xml(f.AsSOAP(processContents="lax"), code) |
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[6ff0b91] | 48 | |
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| 49 | def check_headers(self, ps): |
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| 50 | """Send a fault for any required envelope headers""" |
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| 51 | for (uri, localname) in ps.WhatMustIUnderstand(): |
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| 52 | self.send_fault(FaultFromNotUnderstood(uri, lname, 'fedd')) |
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| 53 | return False |
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| 54 | return True |
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| 55 | |
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| 56 | def check_method(self, ps): |
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| 57 | """Confirm that this class implements the namespace and SOAP method""" |
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| 58 | root = ps.body_root |
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[7aec37d] | 59 | if root.namespaceURI not in self.server.impl.soap_namespaces: |
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[6ff0b91] | 60 | self.send_fault(Fault(Fault.Client, |
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| 61 | 'Unknown namespace "%s"' % root.namespaceURI)) |
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| 62 | return False |
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[329f61d] | 63 | |
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| 64 | if getattr(root, 'localName', None) == None: |
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| 65 | self.send_fault(Fault(Fault.Client, 'No method"')) |
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[6ff0b91] | 66 | return False |
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| 67 | return True |
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| 68 | |
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| 69 | def do_POST(self): |
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| 70 | """Treat an HTTP POST request as a SOAP service call""" |
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| 71 | try: |
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| 72 | cl = int(self.headers['content-length']) |
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| 73 | data = self.rfile.read(cl) |
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| 74 | ps = ParsedSoap(data) |
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| 75 | except ParseException, e: |
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[0a47d52] | 76 | self.send_fault(Fault(Fault.Client, str(e))) |
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[6ff0b91] | 77 | return |
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| 78 | except Exception, e: |
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| 79 | self.send_fault(FaultFromException(e, 0, sys.exc_info()[2])) |
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| 80 | return |
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| 81 | if not self.check_headers(ps): return |
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| 82 | if not self.check_method(ps): return |
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| 83 | try: |
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[19cc408] | 84 | resp = self.soap_dispatch(ps.body_root.localName, ps, |
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[329f61d] | 85 | fedid(cert=self.request.get_peer_cert())) |
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[6ff0b91] | 86 | except Fault, f: |
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| 87 | self.send_fault(f) |
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| 88 | resp = None |
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| 89 | |
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| 90 | if resp != None: |
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| 91 | sw = SoapWriter() |
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| 92 | sw.serialize(resp) |
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| 93 | self.send_xml(str(sw)) |
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| 94 | |
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[19cc408] | 95 | def soap_dispatch(self, method, req, fid): |
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| 96 | if self.server.soap_methods.has_key(method): |
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| 97 | try: |
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| 98 | return self.server.soap_methods[method](req, fid) |
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| 99 | except service_error, e: |
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| 100 | de = ns0.faultType_Def( |
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| 101 | (ns0.faultType_Def.schema, |
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| 102 | "FeddFaultBody")).pyclass() |
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| 103 | de._code=e.code |
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| 104 | de._errstr=e.code_string() |
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| 105 | de._desc=e.desc |
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| 106 | if e.is_server_error(): |
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| 107 | raise Fault(Fault.Server, e.code_string(), detail=de) |
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| 108 | else: |
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| 109 | raise Fault(Fault.Client, e.code_string(), detail=de) |
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| 110 | else: |
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| 111 | raise Fault(Fault.Client, "Unknown method: %s" % method) |
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| 112 | |
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| 113 | |
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[329f61d] | 114 | class fedd_xmlrpc_handler(BaseHTTPRequestHandler): |
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| 115 | server_version = "ZSI/2.0 fedd/0.1 " + BaseHTTPRequestHandler.server_version |
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| 116 | |
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| 117 | def send_xml(self, text, code=200): |
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| 118 | """Send an XML document as reply""" |
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| 119 | self.send_response(code) |
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| 120 | self.send_header('Content-type', 'text/xml; charset="utf-8"') |
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| 121 | self.send_header('Content-Length', str(len(text))) |
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| 122 | self.end_headers() |
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| 123 | self.wfile.write(text) |
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| 124 | self.wfile.flush() |
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| 125 | |
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| 126 | def do_POST(self): |
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| 127 | """Treat an HTTP POST request as an XMLRPC service call""" |
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| 128 | |
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| 129 | resp = None |
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| 130 | data = None |
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[0a47d52] | 131 | method = None |
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[329f61d] | 132 | cl = int(self.headers['content-length']) |
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| 133 | data = self.rfile.read(cl) |
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| 134 | |
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| 135 | try: |
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[0a47d52] | 136 | params, method = xmlrpclib.loads(data) |
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| 137 | except xmlrpclib.ResponseError: |
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| 138 | data = xmlrpclib.dumps(xmlrpclib.Fault("Client", |
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| 139 | "Malformed request"), methodresponse=True) |
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| 140 | |
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| 141 | if method != None: |
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| 142 | try: |
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[19cc408] | 143 | resp = self.xmlrpc_dispatch(method, params, |
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[0a47d52] | 144 | fedid(cert=self.request.get_peer_cert())) |
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[bcbf543] | 145 | data = xmlrpclib.dumps((resp,), encoding='UTF-8', |
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| 146 | methodresponse=True) |
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[0a47d52] | 147 | except xmlrpclib.Fault, f: |
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| 148 | data = xmlrpclib.dumps(f, methodresponse=True) |
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| 149 | resp = None |
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[329f61d] | 150 | self.send_xml(data) |
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| 151 | |
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| 152 | |
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[19cc408] | 153 | def xmlrpc_dispatch(self, method, req, fid): |
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| 154 | if self.server.xmlrpc_methods.has_key(method): |
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| 155 | try: |
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| 156 | return self.server.xmlrpc_methods[method](req, fid) |
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| 157 | except service_error, e: |
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| 158 | raise xmlrpclib.Fault(e.code_string(), e.desc) |
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| 159 | else: |
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| 160 | raise xmlrpclib.Fault(100, "Unknown method: %s" % method) |
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| 161 | |
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[6ff0b91] | 162 | class fedd_opts(OptionParser): |
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| 163 | """Encapsulate option processing in this class, rather than in main""" |
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| 164 | def __init__(self): |
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| 165 | OptionParser.__init__(self, usage="%prog [opts] (--help for details)", |
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| 166 | version="0.1") |
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| 167 | |
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[329f61d] | 168 | self.set_defaults(host="localhost", port=23235, |
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| 169 | transport="soap",debug=0) |
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[6ff0b91] | 170 | |
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| 171 | self.add_option("-d", "--debug", action="count", dest="debug", |
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| 172 | help="Set debug. Repeat for more information") |
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| 173 | self.add_option("-f", "--configfile", action="store", |
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| 174 | dest="configfile", help="Configuration file (required)") |
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| 175 | self.add_option("-H", "--host", action="store", type="string", |
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| 176 | dest="host", help="Hostname to listen on (default %default)") |
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| 177 | self.add_option("-p", "--port", action="store", type="int", |
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| 178 | dest="port", help="Port to listen on (default %default)") |
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[329f61d] | 179 | self.add_option("-x","--transport", action="store", type="choice", |
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| 180 | choices=("xmlrpc", "soap"), |
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| 181 | help="Transport for request (xmlrpc|soap) (Default: %default)") |
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[6ff0b91] | 182 | self.add_option("--trace", action="store_const", dest="tracefile", |
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| 183 | const=sys.stderr, help="Print SOAP exchange to stderr") |
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| 184 | |
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| 185 | opts, args = fedd_opts().parse_args() |
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| 186 | |
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| 187 | if opts.configfile != None: |
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| 188 | try: |
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| 189 | impl = new_feddservice(opts.configfile) |
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| 190 | except RuntimeError, e: |
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[b234bb9] | 191 | str = getattr(e, 'desc', None) or getattr(e,'message', None) or \ |
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| 192 | "No message" |
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| 193 | sys.exit("Error configuring fedd: %s" % str) |
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[6ff0b91] | 194 | else: |
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| 195 | sys.exit("--configfile is required") |
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| 196 | |
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| 197 | SOAP_port = (opts.host, opts.port) |
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| 198 | |
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| 199 | if impl.cert_file == None: |
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| 200 | sys.exit("Must supply certificate file (probably in config)") |
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| 201 | |
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[2106ed1] | 202 | ctx = None |
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| 203 | while ctx == None: |
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[6ff0b91] | 204 | try: |
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| 205 | ctx = fedd_ssl_context(impl.cert_file, impl.trusted_certs, |
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| 206 | password=impl.cert_pwd) |
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| 207 | except SSL.SSLError, e: |
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[2106ed1] | 208 | if str(e) != "bad decrypt" or impl.cert_pwd != None: |
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[6ff0b91] | 209 | raise |
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| 210 | |
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[329f61d] | 211 | if opts.transport == "soap": |
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| 212 | s = fedd_server(SOAP_port, fedd_soap_handler, ctx, impl) |
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| 213 | elif opts.transport == "xmlrpc": |
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| 214 | s = fedd_server(SOAP_port, fedd_xmlrpc_handler, ctx, impl) |
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| 215 | else: |
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| 216 | s = None |
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| 217 | |
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[6ff0b91] | 218 | s.serve_forever() |
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