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root/cvsroot/COMP/CRAB/python/LFNBaseName.py

Comparing COMP/CRAB/python/LFNBaseName.py (file contents):
Revision 1.15 by fanzago, Thu Oct 16 16:47:40 2008 UTC vs.
Revision 1.21 by spiga, Fri Mar 6 18:36:30 2009 UTC

#	Line 4 | Line 4 | _LFNBaseName_
4		"""
5
6		from crab_exceptions import *
7	<	from crab_util import runCommand, UnixUserName
7	>	from crab_util import runCommand, getUserName
8		import common
9		import os, string, time
10	–	from ProdCommon.SiteDB.SiteDB import SiteDBJSON
10
11
12	<	def LFNBase(PrimaryDataset='',ProcessedDataset='',merged=True,LocalUser=False,publish=False):
12	>	def LFNBase(forced_path, PrimaryDataset='',ProcessedDataset='',merged=True,publish=False):
13		"""
14		"""
16	–	lfnbase = "/store"
17	–	if not merged:
18	–	lfnbase = os.path.join(lfnbase,"tmp")
15		if (PrimaryDataset == 'null'):
16		PrimaryDataset = ProcessedDataset
17	<	#lfnbase = os.path.join(lfnbase, "user", getUserName(LocalUser=LocalUser), PrimaryDataset, ProcessedDataset )
18	<	### for tutorial
19	<	lfnbase = os.path.join(lfnbase, "user", getUserName(LocalUser=LocalUser), PrimaryDataset, ProcessedDataset )
17	>	if PrimaryDataset != '':
18	>	if ( PrimaryDataset[0] == '/' ):  PrimaryDataset=PrimaryDataset[1:]
19	>	lfnbase = os.path.join(forced_path, getUserName(), PrimaryDataset, ProcessedDataset)
20
21		return lfnbase
22
27	–	def getUnixUserName():
28	–	"""
29	–	extract username from whoami
30	–	"""
31	–	return UnixUserName()
32	–
33	–	def getDN():
34	–	"""
35	–	extract DN from user proxy's identity
36	–	"""
37	–	try:
38	–	userdn = runCommand("voms-proxy-info -identity")
39	–	userdn = string.strip(userdn)
40	–	#search for a / to avoid picking up warning messages
41	–	userdn = userdn[userdn.find('/'):]
42	–	except:
43	–	msg = "Error. Problem with voms-proxy-info -identity command"
44	–	raise CrabException(msg)
45	–	return userdn.split('\n')[0]
46	–
47	–	def gethnUserNameFromSiteDB():
48	–	"""
49	–	extract user name from SiteDB
50	–	"""
51	–	hnUserName = None
52	–	userdn = getDN()
53	–	mySiteDB = SiteDBJSON()
54	–	try:
55	–	hnUserName = mySiteDB.dnUserName(dn=userdn)
56	–	except:
57	–	msg = "Error. Problem extracting user name from SiteDB"
58	–	msg += "\n Check that you are registered in SiteDB, see https://twiki.cern.ch/twiki/bin/view/CMS/SiteDBForCRAB"
59	–	raise CrabException(msg)
60	–	if not hnUserName:
61	–	msg = "Error. There is no user name associated to DN %s in SiteDB. You need to register in SiteDB with the instructions at https://twiki.cern.ch/twiki/bin/view/CMS/SiteDBForCRAB" % userdn
62	–	print msg
63	–	raise CrabException(msg)
64	–	return hnUserName
65	–
66	–
67	–	def gethnUserName():
68	–	"""
69	–	cache the username extracted from SiteDB for 24hours
70	–	"""
71	–	userconfigFileName="SiteDBusername.conf"
72	–	if not os.path.exists(userconfigFileName):
73	–	common.logger.debug(5,"Downloading from SiteDB username into %s"%userconfigFileName)
74	–	nameuser = gethnUserNameFromSiteDB()
75	–	userfile = open(userconfigFileName, 'w')
76	–	userfile.write(nameuser)
77	–	userfile.close()
78	–	else:
79	–	statinfo = os.stat(userconfigFileName)
80	–	## if the file is older then 24 hours it is re-downloaded to update the configuration
81	–	oldness = 24*3600
82	–	if (time.time() - statinfo.st_ctime) > oldness:
83	–	common.logger.debug(5,"Downloading from SiteDB username into %s"%userconfigFileName)
84	–	nameuser = gethnUserNameFromSiteDB()
85	–	userfile = open(userconfigFileName, 'w')
86	–	userfile.write(nameuser)
87	–	userfile.close()
88	–	else:
89	–	userfile = open(userconfigFileName, 'r')
90	–	for line in userfile.readlines():
91	–	nameuser = line
92	–	userfile.close()
93	–	nameuser = string.strip(nameuser)
94	–	return nameuser
95	–
96	–	def getUserName(LocalUser=False):
97	–	"""
98	–	extract user name from either SiteDB or Unix
99	–	"""
100	–	if LocalUser:
101	–	common.logger.debug(10,"Using as username the Unix user name")
102	–	UserName=getUnixUserName()
103	–	return UserName
104	–
105	–	UserName=gethnUserName()
106	–	return UserName
23
24		if __name__ == '__main__' :
25		"""

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