def getFTS3Context(self, username, group, ftsServer, threadID):
""" Returns an fts3 context for a given user, group and fts server
The context pool is per thread, and there is one context
per tuple (user, group, server).
We dump the proxy of a user to a file (shared by all the threads),
and use it to make the context.
The proxy needs a lifetime of at least 2h, is cached for 1.5h, and
the lifetime of the context is 45mn
:param username: name of the user
:param group: group of the user
:param ftsServer: address of the server
:returns: S_OK with the context object
"""
log = gLogger.getSubLogger("getFTS3Context", child=True)
contextes = self._globalContextCache.setdefault(threadID, DictCache())
idTuple = (username, group, ftsServer)
log.debug("Getting context for %s" % (idTuple, ))
if not contextes.exists(idTuple, 2700):
res = getDNForUsername(username)
if not res['OK']:
return res
# We take the first DN returned
userDN = res['Value'][0]
log.debug("UserDN %s" % userDN)
# We dump the proxy to a file.
# It has to have a lifetime of at least 2 hours
# and we cache it for 1.5 hours
res = gProxyManager.downloadVOMSProxyToFile(userDN,
group,
requiredTimeLeft=7200,
cacheTime=5400)
if not res['OK']:
return res
proxyFile = res['Value']
log.debug("Proxy file %s" % proxyFile)
# We generate the context
res = FTS3Job.generateContext(ftsServer, proxyFile)
if not res['OK']:
return res
context = res['Value']
# we add it to the cache for this thread for 1h
contextes.add(idTuple, 3600, context)
return S_OK(contextes.get(idTuple))
def getFTS3Context(self, username, group, ftsServer, threadID):
""" Returns an fts3 context for a given user, group and fts server
The context pool is per thread, and there is one context
per tuple (user, group, server).
We dump the proxy of a user to a file (shared by all the threads),
and use it to make the context.
The proxy needs a lifetime of at least 2h, is cached for 1.5h, and
the lifetime of the context is 45mn
:param username: name of the user
:param group: group of the user
:param ftsServer: address of the server
:returns: S_OK with the context object
"""
log = gLogger.getSubLogger("getFTS3Context", child=True)
contextes = self._globalContextCache.setdefault(threadID, DictCache())
idTuple = (username, group, ftsServer)
log.debug("Getting context for %s" % (idTuple, ))
if not contextes.exists(idTuple, 2700):
res = getDNForUsername(username)
if not res['OK']:
return res
# We take the first DN returned
userDN = res['Value'][0]
log.debug("UserDN %s" % userDN)
# We dump the proxy to a file.
# It has to have a lifetime of at least 2 hours
# and we cache it for 1.5 hours
res = gProxyManager.downloadVOMSProxyToFile(
userDN, group, requiredTimeLeft=7200, cacheTime=5400)
if not res['OK']:
return res
proxyFile = res['Value']
log.debug("Proxy file %s" % proxyFile)
# We generate the context
res = FTS3Job.generateContext(ftsServer, proxyFile)
if not res['OK']:
return res
context = res['Value']
# we add it to the cache for this thread for 1h
contextes.add(idTuple, 3600, context)
return S_OK(contextes.get(idTuple))
def getFTS3Context(self, username, group, ftsServer, threadID):
""" Returns an fts3 context for a given user, group and fts server
The context pool is per thread, and there is one context
per tuple (user, group, server).
We dump the proxy of a user to a file (shared by all the threads),
and use it to make the context.
The proxy needs a lifetime of self.proxyLifetime, is cached for cacheTime = (2*lifeTime/3) - 10mn,
and the lifetime of the context is 45mn
The reason for cacheTime to be what it is is because the FTS3 server will ask for a new proxy
after 2/3rd of the existing proxy has expired, so we renew it just before
:param str username: name of the user
:param str group: group of the user
:param str ftsServer: address of the server
:param str threadID: thread ID
:returns: S_OK with the context object
"""
log = gLogger.getSubLogger("getFTS3Context", child=True)
contextes = self._globalContextCache.setdefault(threadID, DictCache())
idTuple = (username, group, ftsServer)
log.debug("Getting context for %s" % (idTuple, ))
# We keep a context in the cache for 45 minutes
# (so it needs to be valid at least 15 since we add it for one hour)
if not contextes.exists(idTuple, 15 * 60):
res = getDNForUsername(username)
if not res['OK']:
return res
# We take the first DN returned
userDN = res['Value'][0]
log.debug("UserDN %s" % userDN)
# We dump the proxy to a file.
# It has to have a lifetime of self.proxyLifetime
# Because the FTS3 servers cache it for 2/3rd of the lifetime
# we should make our cache a bit less than 2/3rd of the lifetime
cacheTime = int(2 * self.proxyLifetime / 3) - 600
res = gProxyManager.downloadVOMSProxyToFile(
userDN,
group,
requiredTimeLeft=self.proxyLifetime,
cacheTime=cacheTime)
if not res['OK']:
return res
proxyFile = res['Value']
log.debug("Proxy file %s" % proxyFile)
# We generate the context
# In practice, the lifetime will be less than proxyLifetime
# because we reuse a cached proxy. However, the cached proxy will
# never forced a redelegation, because it is recent enough for FTS3 servers.
# The delegation is forced when 2/3 rd of the lifetime are left, and we get a fresh
# one just before. So no problem
res = FTS3Job.generateContext(ftsServer,
proxyFile,
lifetime=self.proxyLifetime)
if not res['OK']:
return res
context = res['Value']
# we add it to the cache for this thread for 1h
contextes.add(idTuple, 3600, context)
return S_OK(contextes.get(idTuple))