[6a50b78] | 1 | #!/usr/local/bin/python |
---|
| 2 | |
---|
| 3 | import os,sys |
---|
| 4 | import stat # for chmod constants |
---|
| 5 | import re |
---|
| 6 | import random |
---|
| 7 | import string |
---|
| 8 | import copy |
---|
| 9 | import pickle |
---|
| 10 | import logging |
---|
| 11 | import subprocess |
---|
| 12 | import traceback |
---|
| 13 | |
---|
| 14 | from threading import * |
---|
| 15 | from M2Crypto.SSL import SSLError |
---|
| 16 | |
---|
| 17 | from emulab_access import access as emulab_access |
---|
| 18 | |
---|
| 19 | from util import * |
---|
| 20 | from deter import fedid, generate_fedid |
---|
| 21 | from authorizer import authorizer, abac_authorizer |
---|
| 22 | from service_error import service_error |
---|
| 23 | from remote_service import xmlrpc_handler, soap_handler, service_caller |
---|
| 24 | from proof import proof as access_proof |
---|
| 25 | |
---|
| 26 | import httplib |
---|
| 27 | import tempfile |
---|
| 28 | from urlparse import urlparse |
---|
| 29 | |
---|
| 30 | from deter import topdl |
---|
| 31 | import list_log |
---|
| 32 | import benito_segment |
---|
| 33 | |
---|
| 34 | |
---|
| 35 | # Make log messages disappear if noone configures a fedd logger |
---|
| 36 | class nullHandler(logging.Handler): |
---|
| 37 | def emit(self, record): pass |
---|
| 38 | |
---|
| 39 | fl = logging.getLogger("fedd.access") |
---|
| 40 | fl.addHandler(nullHandler()) |
---|
| 41 | |
---|
| 42 | class access(emulab_access): |
---|
| 43 | """ |
---|
| 44 | The implementation of access control based on mapping users to projects. |
---|
| 45 | |
---|
| 46 | Users can be mapped to existing projects or have projects created |
---|
| 47 | dynamically. This implements both direct requests and proxies. |
---|
| 48 | """ |
---|
| 49 | |
---|
| 50 | max_name_len = 19 |
---|
| 51 | |
---|
| 52 | def __init__(self, config=None, auth=None): |
---|
| 53 | """ |
---|
| 54 | Initializer. Pulls parameters out of the ConfigParser's access section. |
---|
| 55 | """ |
---|
| 56 | emulab_access.__init__(self, config, auth) |
---|
| 57 | |
---|
| 58 | # Segment creation is where most of the differences are. |
---|
| 59 | self.start_segment = benito_segment.start_segment |
---|
| 60 | self.stop_segment = benito_segment.stop_segment |
---|
| 61 | self.info_segment = benito_segment.info_segment |
---|
| 62 | |
---|
| 63 | # These are subroutines for StartSegment |
---|
| 64 | def generate_ns2(self, topo, expfn, softdir, connInfo): |
---|
| 65 | """ |
---|
| 66 | Benito is expecting a topdl file, so this routine is misnamed. It does |
---|
| 67 | clean up the topdl, removing elements benito doesn't understand and |
---|
| 68 | writing out the file. |
---|
| 69 | """ |
---|
| 70 | # Main line of generate_ns2 |
---|
| 71 | t = topo.clone() |
---|
| 72 | |
---|
| 73 | # Weed out the things we aren't going to instantiate: Segments, portal |
---|
| 74 | # substrates, and portal interfaces. (The copy in the for loop allows |
---|
| 75 | # us to delete from e.elements in side the for loop). While we're |
---|
| 76 | # touching all the elements, we also adjust paths from the original |
---|
| 77 | # testbed to local testbed paths |
---|
| 78 | for e in [e for e in t.elements]: |
---|
| 79 | if isinstance(e, topdl.Segment): |
---|
| 80 | t.elements.remove(e) |
---|
| 81 | # Fix software paths |
---|
| 82 | for s in getattr(e, 'software', []): |
---|
| 83 | s.location = re.sub("^.*/", softdir, s.location) |
---|
| 84 | |
---|
| 85 | t.substrates = [ s.clone() for s in t.substrates ] |
---|
| 86 | t.incorporate_elements() |
---|
| 87 | |
---|
| 88 | # Convert to ns and write it out |
---|
| 89 | expfile = topdl.topology_to_xml(t, top='experiment') |
---|
| 90 | try: |
---|
| 91 | f = open(expfn, "w") |
---|
| 92 | print >>f, expfile |
---|
| 93 | f.close() |
---|
| 94 | except EnvironmentError: |
---|
| 95 | raise service_error(service_error.internal, |
---|
| 96 | "Cannot write experiment file %s: %s" % (expfn,e)) |
---|