| 1 | #!/usr/local/bin/python |
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| 2 | |
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| 3 | import sys |
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| 4 | import os |
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| 5 | import pwd |
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| 6 | |
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| 7 | from fedd_services import * |
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| 8 | |
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| 9 | from M2Crypto import SSL, X509 |
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| 10 | from M2Crypto.m2xmlrpclib import SSL_Transport |
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| 11 | import M2Crypto.httpslib |
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| 12 | |
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| 13 | from xmlrpclib import ServerProxy, Error, dumps, loads |
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| 14 | from ZSI import SoapWriter |
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| 15 | from ZSI.TC import QName, String, URI, AnyElement, UNBOUNDED, Any |
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| 16 | from ZSI.wstools.Namespaces import SOAP |
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| 17 | from ZSI.fault import FaultType, Detail |
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| 18 | |
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| 19 | import xmlrpclib |
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| 20 | |
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| 21 | from fedd_util import fedid, fedd_ssl_context, pack_soap, unpack_soap, \ |
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| 22 | pack_id, unpack_id |
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| 23 | |
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| 24 | from optparse import OptionParser, OptionValueError |
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| 25 | |
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| 26 | import parse_detail |
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| 27 | |
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| 28 | # Turn off the matching of hostname to certificate ID |
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| 29 | SSL.Connection.clientPostConnectionCheck = None |
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| 30 | |
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| 31 | class IDFormatException(RuntimeError): pass |
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| 32 | |
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| 33 | class access_method: |
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| 34 | """Encapsulates an access method generically.""" |
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| 35 | (type_ssh, type_x509, type_pgp) = ('sshPubkey', 'X509', 'pgpPubkey') |
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| 36 | default_type = type_ssh |
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| 37 | def __init__(self, buf=None, type=None, file=None): |
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| 38 | self.buf = buf |
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| 39 | |
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| 40 | if type != None: self.type = type |
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| 41 | else: self.type = access_method.default_type |
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| 42 | |
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| 43 | if file != None: |
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| 44 | self.readfile(file) |
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| 45 | |
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| 46 | def readfile(self, file, type=None): |
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| 47 | f = open(file, "r") |
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| 48 | self.buf = f.read(); |
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| 49 | f.close() |
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| 50 | if type == None: |
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| 51 | if self.type == None: |
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| 52 | self.type = access_method.default_type |
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| 53 | else: |
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| 54 | self.type = type; |
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| 55 | |
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| 56 | class node_desc: |
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| 57 | def __init__(self, image, hardware, count=1): |
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| 58 | if getattr(image, "__iter__", None) == None: |
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| 59 | if image == None: self.image = [ ] |
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| 60 | else: self.image = [ image ] |
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| 61 | else: |
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| 62 | self.image = image |
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| 63 | |
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| 64 | if getattr(hardware, "__iter__", None) == None: |
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| 65 | if hardware == None: self.hardware = [ ] |
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| 66 | else: self.hardware = [ hardware ] |
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| 67 | else: |
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| 68 | self.hardware = hardware |
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| 69 | if count != None: self.count = int(count) |
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| 70 | else: self.count = 1 |
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| 71 | |
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| 72 | class fedd_client_opts(OptionParser): |
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| 73 | """Encapsulate option processing in this class, rather than in main""" |
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| 74 | def __init__(self): |
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| 75 | OptionParser.__init__(self, usage="%prog [opts] (--help for details)", |
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| 76 | version="0.1") |
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| 77 | |
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| 78 | self.set_defaults(url="https://localhost:23235", anonymous=False, |
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| 79 | serialize_only=False, transport="soap", use_fedid=False, |
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| 80 | debug=0) |
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| 81 | |
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| 82 | self.add_option("-a","--anonymous", action="store_true", |
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| 83 | dest="anonymous", help="Do not include a user in the request") |
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| 84 | self.add_option("-c","--cert", action="store", dest="cert", |
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| 85 | type="string", help="my certificate file") |
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| 86 | self.add_option("-d", "--debug", action="count", dest="debug", |
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| 87 | help="Set debug. Repeat for more information") |
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| 88 | self.add_option("-f","--useFedid", action="store_true", |
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| 89 | dest="use_fedid", |
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| 90 | help="Use a fedid derived from my certificate as user identity") |
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| 91 | self.add_option("-k", "--sshKey", action="callback", type="string", |
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| 92 | callback=add_ssh_key, callback_args=(access_keys,), |
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| 93 | help="ssh key for access (can be supplied more than once") |
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| 94 | self.add_option("-K", "--x509Key", action="callback", type="string", |
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| 95 | callback=add_x509_cert, callback_args=(access_keys,), |
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| 96 | help="X509 certificate for access " + \ |
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| 97 | "(can be supplied more than once") |
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| 98 | self.add_option("-l","--label", action="store", dest="label", |
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| 99 | type="string", help="Label for output") |
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| 100 | self.add_option("-n", "--node", action="callback", type="string", |
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| 101 | callback=add_node_desc, callback_args=(node_descs,), |
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| 102 | help="Node description: image:hardware[:count]") |
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| 103 | self.add_option("-p", "--project", action="store", dest="project", |
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| 104 | type="string", |
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| 105 | help="Use a project request with this project name") |
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| 106 | self.add_option("-s", "--serializeOnly", action="store_true", |
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| 107 | dest="serialize_only", |
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| 108 | help="Print the SOAP request that would be sent and exit") |
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| 109 | self.add_option("-t", "--testbed", action="store", dest="testbed", |
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| 110 | type="string", |
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| 111 | help="Testbed identifier (URI) to contact (required)") |
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| 112 | self.add_option("-T","--trusted", action="store", dest="trusted", |
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| 113 | type="string", help="Trusted certificates (required)") |
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| 114 | self.add_option("-u", "--url", action="store", dest="url", |
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| 115 | type="string", |
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| 116 | help="URL to connect to (default %default)") |
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| 117 | self.add_option("-U", "--username", action="store", dest="user", |
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| 118 | type="string", help="Use this username instead of the uid") |
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| 119 | self.add_option("-x","--transport", action="store", type="choice", |
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| 120 | choices=("xmlrpc", "soap"), |
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| 121 | help="Transport for request (xmlrpc|soap) (Default: %default)") |
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| 122 | self.add_option("--trace", action="store_const", dest="tracefile", |
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| 123 | const=sys.stderr, help="Print SOAP exchange to stderr") |
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| 124 | |
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| 125 | def print_response_as_testbed(resp, label, out=sys.stdout): |
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| 126 | """Print the response as input to the splitter script""" |
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| 127 | |
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| 128 | e = resp['emulab'] |
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| 129 | p = e['project'] |
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| 130 | fields = { |
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| 131 | "Boss": e['boss'], |
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| 132 | "OpsNode": e['ops'], |
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| 133 | "Domain": e['domain'], |
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| 134 | "FileServer": e['fileServer'], |
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| 135 | "EventServer": e['eventServer'], |
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| 136 | "Project": unpack_id(p['name']) |
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| 137 | } |
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| 138 | if (label != None): print >> out, "[%s]" % label |
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| 139 | |
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| 140 | for l, v in fields.iteritems(): |
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| 141 | print >>out, "%s: %s" % (l, v) |
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| 142 | |
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| 143 | for u in p['user']: |
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| 144 | print >>out, "User: %s" % unpack_id(u['userID']) |
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| 145 | |
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| 146 | for a in e['fedAttr']: |
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| 147 | print >>out, "%s: %s" % (a['attribute'], a['value']) |
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| 148 | |
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| 149 | def exit_with_fault(dict, out=sys.stderr): |
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| 150 | """ Print an error message and exit. |
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| 151 | |
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| 152 | The dictionary contains the RequestAccessFaultBody elements.""" |
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| 153 | codestr = "" |
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| 154 | |
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| 155 | if dict.has_key('errstr'): |
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| 156 | codestr = "Error: %s" % dict['errstr'] |
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| 157 | |
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| 158 | if dict.has_key('code'): |
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| 159 | if len(codestr) > 0 : |
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| 160 | codestr += " (%d)" % dict['code'] |
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| 161 | else: |
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| 162 | codestr = "Error Code: %d" % dict['code'] |
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| 163 | |
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| 164 | print>>out, codestr |
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| 165 | print>>out, "Description: %s" % dict['desc'] |
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| 166 | sys.exit(dict.get('code', 20)) |
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| 167 | |
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| 168 | def add_ssh_key(option, opt_str, value, parser, access_keys): |
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| 169 | try: |
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| 170 | access_keys.append(access_method(file=value, |
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| 171 | type=access_method.type_ssh)) |
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| 172 | except IOError, (errno, strerror): |
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| 173 | raise OptionValueError("Cannot generate sshPubkey from %s: %s (%d)" % |
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| 174 | (value,strerror,errno)) |
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| 175 | |
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| 176 | def add_x509_cert(option, opt_str, value, parser, access_keys): |
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| 177 | try: |
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| 178 | access_keys.append(access_method(file=value, |
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| 179 | type=access_method.type_x509)) |
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| 180 | except IOError, (errno, strerror): |
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| 181 | raise OptionValueError("Cannot read x509 cert from %s: %s (%d)" % |
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| 182 | (value,strerror,errno)) |
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| 183 | |
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| 184 | def add_node_desc(option, opt_str, value, parser, node_descs): |
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| 185 | def none_if_zero(x): |
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| 186 | if len(x) > 0: return x |
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| 187 | else: return None |
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| 188 | |
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| 189 | params = map(none_if_zero, value.split(":")); |
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| 190 | |
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| 191 | if len(params) < 4 and len(params) > 1: |
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| 192 | node_descs.append(node_desc(*params)) |
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| 193 | else: |
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| 194 | raise OptionValueError("Bad node description: %s" % value) |
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| 195 | |
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| 196 | def get_user_info(access_keys): |
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| 197 | pw = pwd.getpwuid(os.getuid()); |
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| 198 | try_cert=None |
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| 199 | user = None |
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| 200 | |
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| 201 | if pw != None: |
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| 202 | user = pw[0] |
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| 203 | try_cert = "%s/.ssl/emulab.pem" % pw[5]; |
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| 204 | if not os.access(try_cert, os.R_OK): |
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| 205 | try_cert = None |
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| 206 | if len(access_keys) == 0: |
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| 207 | for k in ["%s/.ssh/id_rsa.pub", "%s/.ssh/id_dsa.pub", |
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| 208 | "%s/.ssh/identity.pub"]: |
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| 209 | try_key = k % pw[5]; |
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| 210 | if os.access(try_key, os.R_OK): |
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| 211 | access_keys.append(access_method(file=try_key, |
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| 212 | type=access_method.type_ssh)) |
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| 213 | break |
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| 214 | return (user, try_cert) |
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| 215 | |
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| 216 | access_keys = [] |
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| 217 | node_descs = [] |
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| 218 | proj = None |
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| 219 | |
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| 220 | # Process the options using the customized option parser defined above |
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| 221 | parser = fedd_client_opts() |
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| 222 | |
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| 223 | (opts, args) = parser.parse_args() |
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| 224 | |
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| 225 | if opts.testbed == None: |
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| 226 | parser.error("--testbed is required") |
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| 227 | |
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| 228 | if opts.trusted != None: |
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| 229 | if ( not os.access(opts.trusted, os.R_OK) ) : |
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| 230 | sys.exit("Cannot read trusted certificates (%s)" % opts.trusted) |
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| 231 | else: |
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| 232 | parser.error("--trusted is required") |
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| 233 | |
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| 234 | if opts.debug > 0: opts.tracefile=sys.stderr |
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| 235 | |
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| 236 | (user, cert) = get_user_info(access_keys) |
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| 237 | |
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| 238 | if opts.user: user = opts.user |
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| 239 | |
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| 240 | if opts.cert != None: cert = opts.cert |
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| 241 | |
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| 242 | if cert == None: |
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| 243 | sys.exit("No certificate given (--cert) or found") |
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| 244 | |
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| 245 | if os.access(cert, os.R_OK): |
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| 246 | fid = fedid(file=cert) |
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| 247 | if opts.use_fedid == True: |
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| 248 | user = fid |
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| 249 | else: |
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| 250 | sys.exit("Cannot read certificate (%s)" % cert) |
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| 251 | |
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| 252 | context = None |
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| 253 | while context == None: |
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| 254 | try: |
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| 255 | context = fedd_ssl_context(cert, opts.trusted) |
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| 256 | except SSL.SSLError, e: |
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| 257 | # Yes, doing this on message type is not ideal. The string comes from |
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| 258 | # OpenSSL, so check there is this stops working. |
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| 259 | if str(e) == "bad decrypt": |
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| 260 | print >>sys.stderr, "Bad Passphrase given." |
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| 261 | else: raise |
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| 262 | |
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| 263 | msg = { |
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| 264 | 'allocID': pack_id('test alloc'), |
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| 265 | 'destinationTestbed': pack_id(opts.testbed), |
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| 266 | 'access' : [ { a.type: a.buf } for a in access_keys ], |
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| 267 | } |
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| 268 | |
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| 269 | if len(node_descs) > 0: |
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| 270 | msg['resources'] = { |
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| 271 | 'node': [ |
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| 272 | { |
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| 273 | 'image': n.image , |
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| 274 | 'hardware': n.hardware, |
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| 275 | 'count': n.count, |
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| 276 | } for n in node_descs], |
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| 277 | } |
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| 278 | |
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| 279 | if opts.project != None: |
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| 280 | if not opts.anonymous and user != None: |
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| 281 | msg['project'] = { |
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| 282 | 'name': pack_id(opts.project), |
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| 283 | 'user': [ { 'userID': pack_id(user) } ], |
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| 284 | } |
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| 285 | else: |
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| 286 | msg['project'] = { 'name': pack_id(opts.project) } |
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| 287 | else: |
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| 288 | if not opts.anonymous and user != None: |
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| 289 | msg['user'] = [ { 'userID': pack_id(user) } ] |
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| 290 | else: |
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| 291 | msg['user'] = []; |
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| 292 | |
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| 293 | if opts.debug > 1: print >>sys.stderr, msg |
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| 294 | |
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| 295 | if opts.transport == "soap": |
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| 296 | loc = feddServiceLocator(); |
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| 297 | port = loc.getfeddPortType(opts.url, |
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| 298 | transport=M2Crypto.httpslib.HTTPSConnection, |
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| 299 | transdict={ 'ssl_context' : context }, |
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| 300 | tracefile=opts.tracefile) |
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| 301 | |
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| 302 | req = RequestAccessRequestMessage() |
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| 303 | |
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| 304 | req.set_element_RequestAccessRequestBody( |
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| 305 | pack_soap(req, "RequestAccessRequestBody", msg)) |
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| 306 | |
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| 307 | if opts.serialize_only: |
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| 308 | sw = SoapWriter() |
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| 309 | sw.serialize(req) |
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| 310 | print str(sw) |
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| 311 | sys.exit(0) |
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| 312 | |
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| 313 | try: |
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| 314 | resp = port.RequestAccess(req) |
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| 315 | except ZSI.ParseException, e: |
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| 316 | sys.exit("Malformed response (XMLPRC?): %s" % e) |
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| 317 | except ZSI.FaultException, e: |
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| 318 | resp = e.fault.detail[0] |
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| 319 | |
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| 320 | if (resp != None): |
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| 321 | if 'get_element_RequestAccessResponseBody' in dir(resp): |
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| 322 | resp_body = resp.get_element_RequestAccessResponseBody() |
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| 323 | if ( resp_body != None): |
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| 324 | try: |
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| 325 | resp_dict = unpack_soap(resp_body) |
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| 326 | if opts.debug > 1: print >>sys.stderr, resp_dict |
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| 327 | print_response_as_testbed(resp_dict, opts.label) |
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| 328 | except RuntimeError, e: |
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| 329 | sys.exit("Bad response. %s" % e.message) |
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| 330 | elif 'get_element_RequestAccessFaultBody' in dir(resp): |
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| 331 | resp_body = resp.get_element_RequestAccessFaultBody() |
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| 332 | if resp_body != None: |
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| 333 | exit_with_fault(unpack_soap(resp_body)) |
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| 334 | else: sys.exit("No body in response!?") |
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| 335 | else: sys.exit("No response?!?") |
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| 336 | elif opts.transport == "xmlrpc": |
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| 337 | if opts.serialize_only: |
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| 338 | ser = dumps((msg,)) |
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| 339 | sys.exit(0) |
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| 340 | |
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| 341 | transport = SSL_Transport(context) |
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| 342 | port = ServerProxy(opts.url, transport=transport) |
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| 343 | |
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| 344 | try: |
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| 345 | resp = port.RequestAccess({ 'RequestAccessRequestBody': msg}) |
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| 346 | resp, method = loads(resp) |
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| 347 | except Error, e: |
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| 348 | resp = { 'RequestAccessFaultBody': \ |
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| 349 | { 'errstr' : e.faultCode, 'desc' : e.faultString } } |
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| 350 | |
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| 351 | |
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| 352 | if (resp != None): |
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| 353 | if resp.has_key('RequestAccessReponseBody'): |
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| 354 | try: |
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| 355 | resp_dict = resp[0]['RequestAccessResponseBody'] |
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| 356 | if opts.debug > 1: print >>sys.stderr, resp_dict |
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| 357 | print_response_as_testbed(resp_dict, opts.label) |
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| 358 | except RuntimeError, e: |
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| 359 | sys.exit("Bad response. %s" % e.messgae) |
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| 360 | elif resp.has_key('RequestAccessFaultBody'): |
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| 361 | exit_with_fault(resp['RequestAccessFaultBody']) |
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| 362 | else: sys.exit("No body in response!?") |
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| 363 | |
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| 364 | else: sys.exit("No response?!?") |
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