[6ff0b91] | 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 | import M2Crypto.httpslib |
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[8f91e66] | 11 | from ZSI import SoapWriter |
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[6ff0b91] | 12 | |
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[8f91e66] | 13 | from fedd_util import fedid, fedd_ssl_context, pack_soap, pack_id |
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[6ff0b91] | 14 | |
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| 15 | from optparse import OptionParser, OptionValueError |
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| 16 | |
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| 17 | # Turn off the matching of hostname to certificate ID |
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| 18 | SSL.Connection.clientPostConnectionCheck = None |
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| 19 | |
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| 20 | class IDFormatException(RuntimeError): pass |
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| 21 | |
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| 22 | class access_method: |
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| 23 | """Encapsulates an access method generically.""" |
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| 24 | (type_ssh, type_x509, type_pgp) = ('sshPubkey', 'X509', 'pgpPubkey') |
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| 25 | default_type = type_ssh |
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| 26 | def __init__(self, buf=None, type=None, file=None): |
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| 27 | self.buf = buf |
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| 28 | |
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| 29 | if type != None: self.type = type |
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| 30 | else: self.type = access_method.default_type |
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| 31 | |
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| 32 | if file != None: |
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| 33 | self.readfile(file) |
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| 34 | |
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| 35 | def readfile(self, file, type=None): |
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| 36 | f = open(file, "r") |
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| 37 | self.buf = f.read(); |
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| 38 | f.close() |
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| 39 | if type == None: |
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| 40 | if self.type == None: |
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| 41 | self.type = access_method.default_type |
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| 42 | else: |
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| 43 | self.type = type; |
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| 44 | |
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| 45 | class node_desc: |
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| 46 | def __init__(self, image, hardware, count=1): |
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| 47 | if getattr(image, "__iter__", None) == None: |
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| 48 | if image == None: self.image = [ ] |
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| 49 | else: self.image = [ image ] |
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| 50 | else: |
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| 51 | self.image = image |
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| 52 | |
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| 53 | if getattr(hardware, "__iter__", None) == None: |
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| 54 | if hardware == None: self.hardware = [ ] |
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| 55 | else: self.hardware = [ hardware ] |
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| 56 | else: |
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| 57 | self.hardware = hardware |
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| 58 | if count != None: self.count = int(count) |
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| 59 | else: self.count = 1 |
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| 60 | |
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| 61 | class fedd_client_opts(OptionParser): |
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| 62 | """Encapsulate option processing in this class, rather than in main""" |
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| 63 | def __init__(self): |
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| 64 | OptionParser.__init__(self, usage="%prog [opts] (--help for details)", |
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| 65 | version="0.1") |
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| 66 | |
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| 67 | self.set_defaults(url="https://localhost:23235", anonymous=False, |
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[8f91e66] | 68 | serialize_only=False, use_fedid=False, debug=0) |
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[6ff0b91] | 69 | |
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| 70 | self.add_option("-a","--anonymous", action="store_true", |
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| 71 | dest="anonymous", help="Do not include a user in the request") |
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| 72 | self.add_option("-c","--cert", action="store", dest="cert", |
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| 73 | type="string", help="my certificate file") |
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| 74 | self.add_option("-d", "--debug", action="count", dest="debug", |
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| 75 | help="Set debug. Repeat for more information") |
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| 76 | self.add_option("-f","--useFedid", action="store_true", |
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| 77 | dest="use_fedid", |
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| 78 | help="Use a fedid derived from my certificate as user identity") |
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| 79 | self.add_option("-k", "--sshKey", action="callback", type="string", |
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| 80 | callback=add_ssh_key, callback_args=(access_keys,), |
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| 81 | help="ssh key for access (can be supplied more than once") |
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| 82 | self.add_option("-K", "--x509Key", action="callback", type="string", |
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| 83 | callback=add_x509_cert, callback_args=(access_keys,), |
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| 84 | help="X509 certificate for access " + \ |
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| 85 | "(can be supplied more than once") |
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| 86 | self.add_option("-l","--label", action="store", dest="label", |
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| 87 | type="string", help="Label for output") |
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| 88 | self.add_option("-n", "--node", action="callback", type="string", |
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| 89 | callback=add_node_desc, callback_args=(node_descs,), |
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| 90 | help="Node description: image:hardware[:count]") |
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| 91 | self.add_option("-p", "--project", action="store", dest="project", |
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| 92 | type="string", |
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| 93 | help="Use a project request with this project name") |
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[8f91e66] | 94 | self.add_option("-s", "--serializeOnly", action="store_true", |
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| 95 | dest="serialize_only", |
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| 96 | help="Print the SOAP request that would be sent and exit") |
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[6ff0b91] | 97 | self.add_option("-t", "--testbed", action="store", dest="testbed", |
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| 98 | type="string", |
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| 99 | help="Testbed identifier (URI) to contact (required)") |
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| 100 | self.add_option("-T","--trusted", action="store", dest="trusted", |
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| 101 | type="string", help="Trusted certificates (required)") |
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| 102 | self.add_option("-u", "--url", action="store", dest="url", |
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| 103 | type="string", |
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| 104 | help="URL to connect to (default %default)") |
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| 105 | self.add_option("-U", "--username", action="store", dest="user", |
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| 106 | type="string", help="Use this username instead of the uid") |
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| 107 | self.add_option("--trace", action="store_const", dest="tracefile", |
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| 108 | const=sys.stderr, help="Print SOAP exchange to stderr") |
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| 109 | |
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| 110 | |
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| 111 | |
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| 112 | def print_ID(id, out=sys.stdout, prefix=None, no_nl=False): |
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| 113 | """Print an ID element (which may have many types) to as a string |
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| 114 | |
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| 115 | If out is given, that is the output destination. If prefix is given that |
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| 116 | string is prepended. If no_nl is given, the newline is not printed. |
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| 117 | """ |
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| 118 | # This comprehension selects all accessors from id of the form |
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| 119 | # get_element_*, calls those in turn and returns a list of non-None ones. |
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| 120 | # For valid ID elements that will contain exactly one element, which we |
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| 121 | # print. Anything else is an error. |
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| 122 | names = [ getattr(id, method)() for method in dir(id) \ |
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| 123 | if method.startswith("get_element_") \ |
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| 124 | and callable(getattr(id, method)) |
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| 125 | and getattr(id,method)() != None ] |
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| 126 | if len(names) == 1: |
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| 127 | if prefix == None: print >>out, names[0], |
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| 128 | else: print >>out, "%s%s" % (prefix,names[0]), |
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| 129 | if not no_nl: print >>out |
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| 130 | else: |
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| 131 | raise IDFormatException() |
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| 132 | |
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| 133 | |
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| 134 | def print_users(ul, out=sys.stdout): |
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| 135 | """ |
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| 136 | Print a list of users, with "User: " prepended, one to a line on out. |
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| 137 | |
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| 138 | @param ul sequence of user elements |
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| 139 | @param out output object. Defaults to sys.stdout |
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| 140 | """ |
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| 141 | if ul != None: |
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| 142 | for u in ul: |
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| 143 | print_ID(u.get_element_userID(), out, "User: ") |
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| 144 | |
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| 145 | |
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| 146 | def print_response_as_testbed(resp, label, out=sys.stdout): |
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| 147 | """Print the response as input to the splitter script""" |
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| 148 | emulab_data = { |
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| 149 | "Boss: ": "get_element_boss", |
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| 150 | "OpsNode: ": "get_element_ops", |
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| 151 | "Domain: ": "get_element_domain", |
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| 152 | "FileServer: ": "get_element_fileServer", |
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| 153 | "EventServer: ": "get_element_eventServer", |
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| 154 | } |
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| 155 | if (label != None): print >> out, "[%s]" % label |
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| 156 | e = resp.get_element_emulab() |
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| 157 | if ( e != None): |
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| 158 | p = e.get_element_project() |
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| 159 | if ( p != None ): |
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| 160 | print_ID(p.get_element_name(), out, "Project: ") |
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| 161 | print_users(p.get_element_user(), out) |
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| 162 | for k, m in emulab_data.iteritems(): |
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| 163 | method = getattr(e, m); |
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| 164 | if method != None and callable(method): |
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| 165 | print >> out, "%s%s" % (k, method()) |
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| 166 | for a in e.get_element_fedAttr(): |
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| 167 | print >>out, "%s: %s" % \ |
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| 168 | (a.get_element_attribute(), a.get_element_value()) |
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| 169 | def add_ssh_key(option, opt_str, value, parser, access_keys): |
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| 170 | try: |
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| 171 | access_keys.append(access_method(file=value, |
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| 172 | type=access_method.type_ssh)) |
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| 173 | except IOError, (errno, strerror): |
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| 174 | raise OptionValueError("Cannot generate sshPubkey from %s: %s (%d)" % |
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| 175 | (value,strerror,errno)) |
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| 176 | |
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| 177 | def add_x509_cert(option, opt_str, value, parser, access_keys): |
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| 178 | try: |
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| 179 | access_keys.append(access_method(file=value, |
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| 180 | type=access_method.type_x509)) |
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| 181 | except IOError, (errno, strerror): |
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| 182 | raise OptionValueError("Cannot read x509 cert from %s: %s (%d)" % |
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| 183 | (value,strerror,errno)) |
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| 184 | |
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| 185 | def add_node_desc(option, opt_str, value, parser, node_descs): |
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| 186 | def none_if_zero(x): |
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| 187 | if len(x) > 0: return x |
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| 188 | else: return None |
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| 189 | |
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| 190 | params = map(none_if_zero, value.split(":")); |
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| 191 | |
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| 192 | if len(params) < 4 and len(params) > 1: |
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| 193 | node_descs.append(node_desc(*params)) |
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| 194 | else: |
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| 195 | raise OptionValueError("Bad node description: %s" % value) |
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| 196 | |
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| 197 | def get_user_info(access_keys): |
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| 198 | pw = pwd.getpwuid(os.getuid()); |
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| 199 | try_cert=None |
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| 200 | user = None |
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| 201 | |
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| 202 | if pw != None: |
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| 203 | user = pw[0] |
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| 204 | try_cert = "%s/.ssl/emulab.pem" % pw[5]; |
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| 205 | if not os.access(try_cert, os.R_OK): |
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| 206 | try_cert = None |
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| 207 | if len(access_keys) == 0: |
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| 208 | for k in ["%s/.ssh/id_rsa.pub", "%s/.ssh/id_dsa.pub", |
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| 209 | "%s/.ssh/identity.pub"]: |
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| 210 | try_key = k % pw[5]; |
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| 211 | if os.access(try_key, os.R_OK): |
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| 212 | access_keys.append(access_method(file=try_key, |
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| 213 | type=access_method.type_ssh)) |
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| 214 | break |
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| 215 | return (user, try_cert) |
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| 216 | |
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| 217 | access_keys = [] |
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| 218 | node_descs = [] |
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| 219 | proj = None |
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| 220 | |
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| 221 | # Process the options using the customized option parser defined above |
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| 222 | (opts, args) = fedd_client_opts().parse_args() |
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| 223 | |
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| 224 | if opts.testbed == None: |
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| 225 | parser.error("--testbed is required") |
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| 226 | |
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| 227 | if opts.trusted != None: |
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| 228 | if ( not os.access(opts.trusted, os.R_OK) ) : |
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| 229 | sys.exit("Cannot read trusted certificates (%s)" % opts.trusted) |
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| 230 | else: |
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| 231 | parser.error("--trusted is required") |
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| 232 | |
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| 233 | if opts.debug > 0: opts.tracefile=sys.stderr |
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| 234 | |
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| 235 | (user, cert) = get_user_info(access_keys) |
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| 236 | |
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| 237 | if opts.user: user = opts.user |
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| 238 | |
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| 239 | if opts.cert != None: cert = opts.cert |
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| 240 | |
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| 241 | if cert == None: |
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| 242 | sys.exit("No certificate given (--cert) or found") |
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| 243 | |
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| 244 | if os.access(cert, os.R_OK): |
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| 245 | fid = fedid(file=cert) |
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| 246 | if opts.use_fedid == True: |
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| 247 | user = fid |
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| 248 | else: |
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| 249 | sys.exit("Cannot read certificate (%s)" % cert) |
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| 250 | |
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| 251 | context = None |
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| 252 | while context == None: |
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| 253 | try: |
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| 254 | context = fedd_ssl_context(cert, opts.trusted) |
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| 255 | except SSL.SSLError, e: |
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| 256 | # Yes, doing this on message type is not ideal. The string comes from |
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| 257 | # OpenSSL, so check there is this stops working. |
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| 258 | if e.message == "bad decrypt": |
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| 259 | print >>sys.stderr, "Bad Passphrase given." |
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| 260 | else: raise |
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| 261 | |
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| 262 | loc = feddServiceLocator(); |
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| 263 | port = loc.getfeddPortType(opts.url, |
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| 264 | transport=M2Crypto.httpslib.HTTPSConnection, |
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| 265 | transdict={ 'ssl_context' : context }, |
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| 266 | tracefile=opts.tracefile) |
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| 267 | |
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| 268 | req = RequestAccessRequestMessage() |
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| 269 | |
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| 270 | msg = { |
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| 271 | 'allocID': pack_id('test alloc'), |
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| 272 | 'destinationTestbed': pack_id(opts.testbed), |
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| 273 | 'access' : [ { a.type: a.buf } for a in access_keys ], |
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| 274 | } |
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| 275 | |
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| 276 | if len(node_descs) > 0: |
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| 277 | msg['resources'] = { |
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| 278 | 'node': [ |
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| 279 | { |
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| 280 | 'image': n.image , |
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| 281 | 'hardware': n.hardware, |
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| 282 | 'count': n.count, |
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| 283 | } for n in node_descs], |
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| 284 | } |
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| 285 | |
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| 286 | if opts.project != None: |
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| 287 | if not opts.anonymous and user != None: |
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| 288 | msg['project'] = { |
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| 289 | 'name': pack_id(opts.project), |
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| 290 | 'user': [ { 'userID': pack_id(user) } ], |
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| 291 | } |
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| 292 | else: |
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| 293 | msg['project'] = { 'name': pack_id(opts.project) } |
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| 294 | else: |
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| 295 | if not opts.anonymous and user != None: |
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| 296 | msg['user'] = [ { 'userID': pack_id(user) } ] |
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| 297 | else: |
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| 298 | msg['user'] = []; |
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| 299 | |
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| 300 | req.set_element_RequestAccessRequestBody( |
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| 301 | pack_soap(req, "RequestAccessRequestBody", msg)) |
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| 302 | |
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[8f91e66] | 303 | if opts.debug > 1: |
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| 304 | print msg |
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| 305 | |
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| 306 | if opts.serialize_only: |
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| 307 | sw = SoapWriter() |
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| 308 | sw.serialize(req) |
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| 309 | print str(sw) |
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| 310 | sys.exit(0) |
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[6ff0b91] | 311 | |
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| 312 | try: |
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| 313 | resp = port.RequestAccess(req) |
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| 314 | except ZSI.FaultException, e: |
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| 315 | sys.exit("Fault: %s" % e) |
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| 316 | |
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| 317 | if (resp != None): |
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| 318 | resp_body = resp.get_element_RequestAccessResponseBody() |
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| 319 | if ( resp_body != None): |
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| 320 | try: |
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| 321 | print_response_as_testbed(resp_body, opts.label) |
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| 322 | except RuntimeError, e: |
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| 323 | sys.exit("Bad response. %s" % e.messgae) |
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| 324 | else: sys.exit("No body in resonpse!?") |
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| 325 | else: sys.exit("No response?!?") |
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