May 2007 - calendarserver-changes - lists.macosforge.org

[1552] CalendarServer/trunk/support/Makefile.Apple
by source_changes＠macosforge.org 22 May '07

22 May '07

Revision: 1552 http://trac.macosforge.org/projects/calendarserver/changeset/1552 Author: dreid(a)apple.com Date: 2007-05-22 15:06:34 -0700 (Tue, 22 May 2007) Log Message: ----------- Build and install PyAppleAuth Modified Paths: -------------- CalendarServer/trunk/support/Makefile.Apple Modified: CalendarServer/trunk/support/Makefile.Apple =================================================================== --- CalendarServer/trunk/support/Makefile.Apple 2007-05-22 20:13:58 UTC (rev 1551) +++ CalendarServer/trunk/support/Makefile.Apple 2007-05-22 22:06:34 UTC (rev 1552) @@ -43,20 +43,21 @@ PyKerberos:: $(BuildDirectory)/PyKerberos PyOpenDirectory:: $(BuildDirectory)/PyOpenDirectory +PyAppleAuth:: $(BuildDirectory)/PyAppleAuth vobject:: $(BuildDirectory)/vobject Twisted:: $(BuildDirectory)/Twisted pydirector-1.0.0:: $(BuildDirectory)/pydirector-1.0.0 python-dateutil-1.1:: $(BuildDirectory)/python-dateutil-1.1 $(Project):: $(BuildDirectory)/$(Project) -build:: PyKerberos PyOpenDirectory pydirector-1.0.0 vobject python-dateutil-1.1 Twisted $(Project) +build:: PyKerberos PyOpenDirectory PyAppleAuth pydirector-1.0.0 vobject python-dateutil-1.1 Twisted $(Project) setup: $(_v) $(Sources)/run -s -prep:: setup PyKerberos.tgz PyOpenDirectory.tgz pydirector-1.0.0.tgz vobject.tgz python-dateutil-1.1.tgz Twisted.tgz +prep:: setup PyKerberos.tgz PyOpenDirectory.tgz PyAppleAuth.tgz pydirector-1.0.0.tgz vobject.tgz python-dateutil-1.1.tgz Twisted.tgz -PyKerberos PyOpenDirectory pydirector-1.0.0 vobject python-dateutil-1.1 $(Project):: +PyKerberos PyOpenDirectory PyAppleAuth pydirector-1.0.0 vobject python-dateutil-1.1 $(Project):: @echo "Building $@..." $(_v) cd $(BuildDirectory)/$@ && $(Environment) $(PYTHON) setup.py build @@ -76,6 +77,7 @@ --install-data="$(ETCDIR)" $(_v) cd $(BuildDirectory)/PyKerberos && $(Environment) $(PYTHON) setup.py install $(PY_INSTALL_FLAGS) $(_v) cd $(BuildDirectory)/PyOpenDirectory && $(Environment) $(PYTHON) setup.py install $(PY_INSTALL_FLAGS) + $(_v) cd $(BuildDirectory)/PyAppleAuth && $(Environment) $(PYTHON) setup.py install $(PY_INSTALL_FLAGS) $(_v) cd $(BuildDirectory)/pydirector-1.0.0 && $(Environment) $(PYTHON) setup.py install $(PY_INSTALL_FLAGS) $(_v) cd $(BuildDirectory)/vobject && $(Environment) $(PYTHON) setup.py install $(PY_INSTALL_FLAGS) $(_v) cd $(BuildDirectory)/python-dateutil-1.1 && $(Environment) $(PYTHON) setup.py install $(PY_INSTALL_FLAGS)

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[1551] CalendarServer/trunk/twistedcaldav/method/put_common.py
by source_changes＠macosforge.org 22 May '07

22 May '07

Revision: 1551 http://trac.macosforge.org/projects/calendarserver/changeset/1551 Author: cdaboo(a)apple.com Date: 2007-05-22 13:13:58 -0700 (Tue, 22 May 2007) Log Message: ----------- Handle invalid calendar data errors from dateutil to generate a proper HTTP error. Modified Paths: -------------- CalendarServer/trunk/twistedcaldav/method/put_common.py Modified: CalendarServer/trunk/twistedcaldav/method/put_common.py =================================================================== --- CalendarServer/trunk/twistedcaldav/method/put_common.py 2007-05-22 19:11:59 UTC (rev 1550) +++ CalendarServer/trunk/twistedcaldav/method/put_common.py 2007-05-22 20:13:58 UTC (rev 1551) @@ -472,8 +472,8 @@ responsecode.FORBIDDEN, NumberOfRecurrencesWithinLimits(PCDATAElement(str(ex.max_allowed))) )) - except ValueError, e: - log.err(str(e)) + except (ValueError, TypeError), ex: + log.err("Cannot index calendar resource: %s" % (ex,)) raise HTTPError(ErrorResponse(responsecode.FORBIDDEN, (caldav_namespace, "valid-calendar-data"))) destination.writeDeadProperty(davxml.GETContentType.fromString("text/calendar"))

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[1550] CalendarServer/trunk/conf/caldavd.plist
by source_changes＠macosforge.org 22 May '07

22 May '07

Revision: 1550 http://trac.macosforge.org/projects/calendarserver/changeset/1550 Author: cdaboo(a)apple.com Date: 2007-05-22 12:11:59 -0700 (Tue, 22 May 2007) Log Message: ----------- Default configuration now has Basic auth turned off, and Digest and Kerberos on. Modified Paths: -------------- CalendarServer/trunk/conf/caldavd.plist Modified: CalendarServer/trunk/conf/caldavd.plist =================================================================== --- CalendarServer/trunk/conf/caldavd.plist 2007-05-22 18:36:34 UTC (rev 1549) +++ CalendarServer/trunk/conf/caldavd.plist 2007-05-22 19:11:59 UTC (rev 1550) @@ -163,7 +163,7 @@ <key>Digest</key> <dict> <key>Enabled</key> - <false/> + <true/> <key>Algorithm</key> <string>md5</string> <key>Qop</key> @@ -174,7 +174,7 @@ <key>Kerberos</key> <dict> <key>Enabled</key> - <false/> + <true/> <key>ServicePrincipal</key> <string></string> </dict>

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[1549] CalendarServer/trunk/test
by source_changes＠macosforge.org 22 May '07

22 May '07

Revision: 1549 http://trac.macosforge.org/projects/calendarserver/changeset/1549 Author: wsanchez(a)apple.com Date: 2007-05-22 11:36:34 -0700 (Tue, 22 May 2007) Log Message: ----------- Remove ulimit Modified Paths: -------------- CalendarServer/trunk/test Modified: CalendarServer/trunk/test =================================================================== --- CalendarServer/trunk/test 2007-05-22 18:16:54 UTC (rev 1548) +++ CalendarServer/trunk/test 2007-05-22 18:36:34 UTC (rev 1549) @@ -53,8 +53,6 @@ export PYTHONPATH="$("${wd}/run" -p)"; -ulimit -S -n 2048; - if [ $# -gt 0 ]; then test_modules="$@"; else

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[1548] CalendarServer/trunk/twistedcaldav/admin
by source_changes＠macosforge.org 22 May '07

22 May '07

Revision: 1548 http://trac.macosforge.org/projects/calendarserver/changeset/1548 Author: dreid(a)apple.com Date: 2007-05-22 11:16:54 -0700 (Tue, 22 May 2007) Log Message: ----------- Get rid of the assertion, catch the OSError and print it with an appropriate sys.exit(non-zero) and print a message stating why we've fallen back to the default pprint reporter. Modified Paths: -------------- CalendarServer/trunk/twistedcaldav/admin/formatters.py CalendarServer/trunk/twistedcaldav/admin/script.py CalendarServer/trunk/twistedcaldav/admin/util.py Modified: CalendarServer/trunk/twistedcaldav/admin/formatters.py =================================================================== --- CalendarServer/trunk/twistedcaldav/admin/formatters.py 2007-05-22 17:35:40 UTC (rev 1547) +++ CalendarServer/trunk/twistedcaldav/admin/formatters.py 2007-05-22 18:16:54 UTC (rev 1548) @@ -64,6 +64,7 @@ reportPrinter(report) else: + print "No report printer found for report type %r" % (report,) self.report_default(report) def report_default(self, report): Modified: CalendarServer/trunk/twistedcaldav/admin/script.py =================================================================== --- CalendarServer/trunk/twistedcaldav/admin/script.py 2007-05-22 17:35:40 UTC (rev 1547) +++ CalendarServer/trunk/twistedcaldav/admin/script.py 2007-05-22 18:16:54 UTC (rev 1548) @@ -120,6 +120,9 @@ print "%s: %s" % (cmd, ue) + except OSError, osErr: + print osErr + sys.exit(1) except KeyboardInterrupt: sys.exit(1) Modified: CalendarServer/trunk/twistedcaldav/admin/util.py =================================================================== --- CalendarServer/trunk/twistedcaldav/admin/util.py 2007-05-22 17:35:40 UTC (rev 1547) +++ CalendarServer/trunk/twistedcaldav/admin/util.py 2007-05-22 18:16:54 UTC (rev 1548) @@ -59,8 +59,7 @@ def getPrincipalList(principalCollection, type, disabled=False): typeRoot = principalCollection.child(type) - assert typeRoot.exists(), "Does not exist: %s" % typeRoot.path - + pl = [] for child in typeRoot.listdir():

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[1547] CalendarServer/trunk/conf/caldavd.plist
by source_changes＠macosforge.org 22 May '07

22 May '07

Revision: 1547 http://trac.macosforge.org/projects/calendarserver/changeset/1547 Author: wsanchez(a)apple.com Date: 2007-05-22 10:35:40 -0700 (Tue, 22 May 2007) Log Message: ----------- Disable Basic in default config now that Digest appears to work reliably. Modified Paths: -------------- CalendarServer/trunk/conf/caldavd.plist Modified: CalendarServer/trunk/conf/caldavd.plist =================================================================== --- CalendarServer/trunk/conf/caldavd.plist 2007-05-22 14:54:38 UTC (rev 1546) +++ CalendarServer/trunk/conf/caldavd.plist 2007-05-22 17:35:40 UTC (rev 1547) @@ -156,7 +156,7 @@ <key>Basic</key> <dict> <key>Enabled</key> - <true/> + <false/> </dict>

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[1546] CalendarServer/trunk/twistedcaldav/admin
by source_changes＠macosforge.org 22 May '07

22 May '07

Revision: 1546 http://trac.macosforge.org/projects/calendarserver/changeset/1546 Author: cdaboo(a)apple.com Date: 2007-05-22 07:54:38 -0700 (Tue, 22 May 2007) Log Message: ----------- Make sure users/groups/resources/locations/stats commands run properly and generate output. Tweak some output formatting for stats. Modified Paths: -------------- CalendarServer/trunk/twistedcaldav/admin/formatters.py CalendarServer/trunk/twistedcaldav/admin/stats.py Modified: CalendarServer/trunk/twistedcaldav/admin/formatters.py =================================================================== --- CalendarServer/trunk/twistedcaldav/admin/formatters.py 2007-05-21 22:14:21 UTC (rev 1545) +++ CalendarServer/trunk/twistedcaldav/admin/formatters.py 2007-05-22 14:54:38 UTC (rev 1546) @@ -133,19 +133,22 @@ self.writeTable(report, fields, headings) - report_user = report_group = report_resource = report_principals + report_users = report_groups = report_resources = report_locations = report_principals def report_stats(self, report): - fields = ('accountCount', 'groupCount', 'calendarCount', 'eventCount', + fields = ('accountCount', 'groupCount', 'resourceCount', 'locationCount', + 'calendarCount', 'eventCount', 'todoCount', 'diskUsage') headings = { - 'accountCount': '# Accounts', - 'groupCount': '# Groups', + 'accountCount': '# Accounts ', + 'groupCount': '# Groups ', + 'resourceCount': '# Resources', + 'locationCount': '# Locations', 'calendarCount': '# Calendars', - 'eventCount': '# Events', - 'todoCount': '# Todos', - 'diskUsage': 'Disk Usage', + 'eventCount': '# Events ', + 'todoCount': '# Todos ', + 'diskUsage': 'Disk Usage ', } self.writeReport(report, 'Statistics', fields, headings) @@ -199,7 +202,7 @@ self.writeDict(self.options['fieldnames'], report['records']) - report_user = report_group = report_resource = report_principals + report_users = report_groups = report_resources = report_locations = report_principals def report_stats(self, report): if 'fieldnames' not in self.options: @@ -224,7 +227,7 @@ plistlib.writePlist(plist, self.dest) - report_user = report_group = report_resource = report_principals + report_users = report_groups = report_resources = report_locations = report_principals def report_stats(self, report): plist = plistlib.Dict() Modified: CalendarServer/trunk/twistedcaldav/admin/stats.py =================================================================== --- CalendarServer/trunk/twistedcaldav/admin/stats.py 2007-05-21 22:14:21 UTC (rev 1545) +++ CalendarServer/trunk/twistedcaldav/admin/stats.py 2007-05-22 14:54:38 UTC (rev 1546) @@ -43,6 +43,7 @@ self.getAccountCount, self.getGroupCount, self.getResourceCount, + self.getLocationCount, self.getDiskUsage] def getDiskUsage(self): @@ -53,20 +54,26 @@ return ("accountCount", len(util.getPrincipalList( self.principalCollection, - 'user'))) + 'users'))) def getGroupCount(self): return ("groupCount", len(util.getPrincipalList( self.principalCollection, - 'group'))) + 'groups'))) def getResourceCount(self): return ("resourceCount", len(util.getPrincipalList( self.principalCollection, - 'resource'))) + 'resources'))) + def getLocationCount(self): + return ("locationCount", + len(util.getPrincipalList( + self.principalCollection, + 'locations'))) + def run(self): assert self.root.exists() stats = []

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[1545] CalendarServer/trunk
by source_changes＠macosforge.org 21 May '07

21 May '07

Revision: 1545 http://trac.macosforge.org/projects/calendarserver/changeset/1545 Author: cdaboo(a)apple.com Date: 2007-05-21 15:14:21 -0700 (Mon, 21 May 2007) Log Message: ----------- Use /var/run/caldavd as the data directory and have the server create it (and set proper mode/owner) if not present. Modified Paths: -------------- CalendarServer/trunk/conf/caldavd.plist CalendarServer/trunk/twistedcaldav/config.py CalendarServer/trunk/twistedcaldav/tap.py Modified: CalendarServer/trunk/conf/caldavd.plist =================================================================== --- CalendarServer/trunk/conf/caldavd.plist 2007-05-21 19:27:45 UTC (rev 1544) +++ CalendarServer/trunk/conf/caldavd.plist 2007-05-21 22:14:21 UTC (rev 1545) @@ -68,7 +68,7 @@  <key>DataRoot</key> - <string>/var/run</string> + <string>/var/run/caldavd</string>  <key>DocumentRoot</key> Modified: CalendarServer/trunk/twistedcaldav/config.py =================================================================== --- CalendarServer/trunk/twistedcaldav/config.py 2007-05-21 19:27:45 UTC (rev 1544) +++ CalendarServer/trunk/twistedcaldav/config.py 2007-05-21 22:14:21 UTC (rev 1545) @@ -63,7 +63,7 @@ # # Data store # - "DataRoot" : "/var/run", + "DataRoot" : "/var/run/caldavd", "DocumentRoot" : "/Library/CalendarServer/Documents", "UserQuota" : 104857600, # User quota (in bytes) "MaximumAttachmentSize": 1048576, # Attachment size limit (in bytes) Modified: CalendarServer/trunk/twistedcaldav/tap.py =================================================================== --- CalendarServer/trunk/twistedcaldav/tap.py 2007-05-21 19:27:45 UTC (rev 1544) +++ CalendarServer/trunk/twistedcaldav/tap.py 2007-05-21 22:14:21 UTC (rev 1545) @@ -193,6 +193,17 @@ #gname=config.GroupName ) + # Verify that data root actually exists + self.checkDirectory( + config.DataRoot, + "Data root", + access=os.W_OK, + #permissions=0750, + #uname=config.UserName, + #gname=config.GroupName + create=(0750, config.UserName, config.GroupName,) + ) + # Verify that ssl certs exist if needed if config.SSLPort: self.checkFile( @@ -221,13 +232,33 @@ log.msg("WARNING: changing umask from: 0%03o to 0%03o" % ( oldmask, config.umask,)) - def checkDirectory(self, dirpath, description, access=None, fail=False, permissions=None, uname=None, gname=None): + def checkDirectory(self, dirpath, description, access=None, fail=False, permissions=None, uname=None, gname=None, create=None): if not os.path.exists(dirpath): - raise ConfigurationError("%s does not exist: %s" % (description, dirpath,)) - elif not os.path.isdir(dirpath): + if create is not None: + # create is a tuple of (mode, username, groupname) + try: + os.mkdir(dirpath) + os.chmod(dirpath, create[0]) + if create[1] and create[2]: + import pwd + import grp + uid = pwd.getpwnam(create[1])[2] + gid = grp.getgrnam(create[2])[2] + os.chown(dirpath, uid, gid) + except: + log.msg("Could not create %s" % (dirpath,)) + raise ConfigurationError("%s does not exist and cannot be created: %s" % (description, dirpath,)) + + log.msg("Created %s" % (dirpath,)) + else: + raise ConfigurationError("%s does not exist: %s" % (description, dirpath,)) + + if not os.path.isdir(dirpath): raise ConfigurationError("%s is not a directory: %s" % (description, dirpath,)) - elif access and not os.access(dirpath, access): + + if access and not os.access(dirpath, access): raise ConfigurationError("Insufficient permissions for server on %s directory: %s" % (description, dirpath,)) + self.securityCheck(dirpath, description, fail=fail, permissions=permissions, uname=uname, gname=gname) def checkFile(self, filepath, description, access=None, fail=False, permissions=None, uname=None, gname=None):

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[1544] CalendarServer/trunk/twistedcaldav/directory/digest.py
by source_changes＠macosforge.org 21 May '07

21 May '07

Revision: 1544 http://trac.macosforge.org/projects/calendarserver/changeset/1544 Author: cdaboo(a)apple.com Date: 2007-05-21 12:27:45 -0700 (Mon, 21 May 2007) Log Message: ----------- Use object as base class Modified Paths: -------------- CalendarServer/trunk/twistedcaldav/directory/digest.py Modified: CalendarServer/trunk/twistedcaldav/directory/digest.py =================================================================== --- CalendarServer/trunk/twistedcaldav/directory/digest.py 2007-05-21 19:20:39 UTC (rev 1543) +++ CalendarServer/trunk/twistedcaldav/directory/digest.py 2007-05-21 19:27:45 UTC (rev 1544) @@ -91,7 +91,7 @@ """ pass -class DigestCredentialsMap: +class DigestCredentialsMap(object): implements(IDigestCredentialsDatabase)

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[1543] CalendarServer/trunk/twistedcaldav/authkerb.py
by source_changes＠macosforge.org 21 May '07

21 May '07

Revision: 1543 http://trac.macosforge.org/projects/calendarserver/changeset/1543 Author: cdaboo(a)apple.com Date: 2007-05-21 12:20:39 -0700 (Mon, 21 May 2007) Log Message: ----------- Refactored common __init__ code into a base class. Modified Paths: -------------- CalendarServer/trunk/twistedcaldav/authkerb.py Modified: CalendarServer/trunk/twistedcaldav/authkerb.py =================================================================== --- CalendarServer/trunk/twistedcaldav/authkerb.py 2007-05-21 18:23:56 UTC (rev 1542) +++ CalendarServer/trunk/twistedcaldav/authkerb.py 2007-05-21 19:20:39 UTC (rev 1543) @@ -49,6 +49,49 @@ import kerberos +class KerberosCredentialFactoryBase(object): + """ + Code common to Kerberos-based credential factories. + """ + + implements(ICredentialFactory) + + def __init__(self, principal=None, type=None, hostname=None): + """ + + @param principal: full Kerberos principal (e.g., 'http/server.example.com(a)EXAMPLE.COM'). If C{None} + then the type and hostname arguments are used instead. + @type service: str + @param type: service type for Kerberos (e.g., 'http'). Must be C{None} if principal used. + @type type: str + @param hostname: hostname for this server. Must be C{None} if principal used. + @type hostname: str + """ + + # Only certain combinations of arguments allowed + assert (principal and not type and not hostname) or (not principal and type and hostname) + + if not principal: + # Look up the Kerberos principal given the service type and hostname, and extract + # the realm and a service principal value for later use. + try: + principal = kerberos.getServerPrincipalDetails(type, hostname) + except kerberos.KrbError, ex: + logging.err("getServerPrincipalDetails: %s" % (ex[0],), system="KerberosCredentialFactoryBase") + raise ValueError('Authentication System Failure: %s' % (ex[0],)) + + try: + splits = principal.split("/") + servicetype = splits[0] + splits = splits[1].split("@") + realm = splits[1] + except IndexError: + logging.err("Invalid Kerberos principal: %s" % (principal,), system="KerberosCredentialFactoryBase") + raise ValueError('Authentication System Failure: Invalid Kerberos principal: %s' % (principal,)) + + self.service = "%s@%s" % (servicetype, realm,) + self.realm = realm + class BasicKerberosCredentials(credentials.UsernamePassword): """ A set of user/password credentials that checks itself against Kerberos. @@ -72,7 +115,7 @@ self.service = service self.default_realm = realm -class BasicKerberosCredentialFactory: +class BasicKerberosCredentialFactory(KerberosCredentialFactoryBase): """ Authorizer for insecure Basic (base64-encoded plaintext) authentication. @@ -80,8 +123,6 @@ Right now we do not check for that. """ - implements(ICredentialFactory) - scheme = 'basic' def __init__(self, principal=None, type=None, hostname=None): @@ -96,30 +137,8 @@ @type hostname: str """ - # Only certain combinations of arguments allowed - assert (principal and not type and not hostname) or (not principal and type and hostname) + super(BasicKerberosCredentialFactory, self).__init__(principal, type, hostname) - if not principal: - # Look up the Kerberos principal given the service type and hostname, and extract - # the realm and a service principal value for later use. - try: - principal = kerberos.getServerPrincipalDetails(type, hostname) - except kerberos.KrbError, ex: - logging.err("getServerPrincipalDetails: %s" % (ex[0],), system="BasicKerberosCredentialFactory") - raise ValueError('Authentication System Failure: %s' % (ex[0],)) - - try: - splits = principal.split("/") - servicetype = splits[0] - splits = splits[1].split("@") - realm = splits[1] - except IndexError: - logging.err("Invalid Kerberos principal: %s" % (principal,), system="BasicKerberosCredentialFactory") - raise ValueError('Authentication System Failure: Invalid Kerberos principal: %s' % (principal,)) - - self.service = "%s@%s" % (servicetype, realm,) - self.realm = realm - def getChallenge(self, _ignore_peer): return {'realm': self.realm} @@ -135,7 +154,7 @@ return c raise error.LoginFailed('Invalid credentials') -class BasicKerberosCredentialsChecker: +class BasicKerberosCredentialsChecker(object): implements(checkers.ICredentialsChecker) @@ -158,7 +177,7 @@ raise error.UnauthorizedLogin("Bad credentials for: %s" % (pcreds.authnURI,)) -class NegotiateCredentials: +class NegotiateCredentials(object): """ A set of user/password credentials that checks itself against Kerberos. """ @@ -169,7 +188,7 @@ self.username = username -class NegotiateCredentialFactory: +class NegotiateCredentialFactory(KerberosCredentialFactoryBase): """ Authorizer for insecure Basic (base64-encoded plaintext) authentication. @@ -177,8 +196,6 @@ Right now we do not check for that. """ - implements(ICredentialFactory) - scheme = 'negotiate' def __init__(self, principal=None, type=None, hostname=None): @@ -193,30 +210,8 @@ @type hostname: str """ - # Only certain combinations of arguments allowed - assert (principal and not type and not hostname) or (not principal and type and hostname) + super(NegotiateCredentialFactory, self).__init__(principal, type, hostname) - if not principal: - # Look up the Kerberos principal given the service type and hostname, and extract - # the realm and a service principal value for later use. - try: - principal = kerberos.getServerPrincipalDetails(type, hostname) - except kerberos.KrbError, ex: - logging.err("getServerPrincipalDetails: %s" % (ex[0],), system="NegotiateCredentialFactory") - raise ValueError('Authentication System Failure: %s' % (ex[0],)) - - try: - splits = principal.split("/") - servicetype = splits[0] - splits = splits[1].split("@") - realm = splits[1] - except IndexError: - logging.err("Invalid Kerberos principal: %s" % (principal,), system="NegotiateCredentialFactory") - raise ValueError('Authentication System Failure: Invalid Kerberos principal: %s' % (principal,)) - - self.service = "%s@%s" % (servicetype, realm,) - self.realm = realm - def getChallenge(self, _ignore_peer): return {} @@ -281,7 +276,7 @@ return NegotiateCredentials(username) -class NegotiateCredentialsChecker: +class NegotiateCredentialsChecker(object): implements(checkers.ICredentialsChecker)

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