Check that Lasso is inited and shotdown only once.

Lasso Python modules now calls init() at first import (I need this
behaviour, because I have several "import lasso" in Expression and I don't
know which one will be called first and I don't want to do something like:
import lasso
if not lasso.inited:
  lasso.init()
).

9 files changed, 15 insertions, 14 deletions

diff --git a/python/examples/defederation.py b/python/examples/defederation.py
index b97a6c3e..34d060c1 100644
--- a/python/examples/defederation.py
+++ b/python/examples/defederation.py
@@ -9,7 +9,6 @@ spuser_dump = "<LassoUser><LassoIdentities><LassoIdentity RemoteProviderID=\"htt
 
 idpuser_dump = "<LassoUser><LassoIdentities><LassoIdentity RemoteProviderID=\"https://service-provider:2003/liberty-alliance/metadata\"><LassoLocalNameIdentifier><NameIdentifier NameQualifier=\"qualifier.com\" Format=\"federated\">1111111111111111111111111</NameIdentifier></LassoLocalNameIdentifier></LassoIdentity></LassoIdentities></LassoUser>"
 
-lasso.init()
 
 # SP :
 spserver = lasso.Server.new("../../examples/sp.xml",
diff --git a/python/examples/login.py b/python/examples/login.py
index 2f7d1d81..b379ab02 100644
--- a/python/examples/login.py
+++ b/python/examples/login.py
@@ -7,8 +7,6 @@ import string
 
 import lasso
 
-lasso.init()
-
 ####################
 # Service provider #
 ####################
diff --git a/python/examples/logout.py b/python/examples/logout.py
index 131e0e62..b8e86431 100644
--- a/python/examples/logout.py
+++ b/python/examples/logout.py
@@ -4,8 +4,6 @@ import sys
 sys.path.insert(0, '../')
 import lasso
 
-lasso.init()
-
 # SP1 server and user :
 sp1server = lasso.Server.new("../../examples/sp1.xml",
     "../../examples/rsapub.pem", "../../examples/rsakey.pem", "../../examples/rsacert.pem",
diff --git a/python/examples/mapping.py b/python/examples/mapping.py
index bde6ec57..5a71abfc 100644
--- a/python/examples/mapping.py
+++ b/python/examples/mapping.py
@@ -4,8 +4,6 @@ import sys
 sys.path.insert(0, '../')
 import lasso
 
-lasso.init()
-
 req = lasso.NameIdentifierMappingRequest.new("http://providerid.com",
                                              "CDSC7SCD65SCDSDCCDS", "http://qualifier.com", "federated")
 print 'dump req : ', req.dump()
diff --git a/python/examples/registration.py b/python/examples/registration.py
index de922cde..23d2fb8d 100644
--- a/python/examples/registration.py
+++ b/python/examples/registration.py
@@ -4,8 +4,6 @@ import sys
 sys.path.insert(0, '../')
 import lasso
 
-lasso.init()
-
 # servers :
 spserver = lasso.Server.new("../../examples/sp.xml",
     "../../examples/rsapub.pem", "../../examples/rsakey.pem", "../../examples/rsacert.pem",
diff --git a/python/examples/test.py b/python/examples/test.py
index 9f4ada8f..03541eca 100755
--- a/python/examples/test.py
+++ b/python/examples/test.py
@@ -5,8 +5,6 @@ import sys
 sys.path.insert(0, '../')
 import lasso
 
-lasso.init()
-
 # creation d'une AuthnRequest
 req = lasso.AuthnRequest("http://providerid.com")
 req.set_forceAuthn(0)
diff --git a/python/examples/user.py b/python/examples/user.py
index f03761b5..0aa641de 100644
--- a/python/examples/user.py
+++ b/python/examples/user.py
@@ -4,8 +4,6 @@ import sys
 sys.path.insert(0, '../')
 import lasso
 
-lasso.init()
-
 
 lasso_assertions = """<LassoAssertions><LassoAssertion RemoteProviderID="https://service-provider1:2003/liberty-alliance/metadata"><Assertion AssertionID="1234567890"></Assertion></LassoAssertion><LassoAssertion RemoteProviderID="https://service-provider2:2003/liberty-alliance/metadata"><Assertion AssertionID="1234567890"></Assertion></LassoAssertion><LassoAssertion RemoteProviderID="https://service-provider3:2003/liberty-alliance/metadata"><Assertion AssertionID="1234567890"></Assertion></LassoAssertion></LassoAssertions>"""
 
diff --git a/python/lasso.py b/python/lasso.py
index ed58c01f..4d317feb 100644
--- a/python/lasso.py
+++ b/python/lasso.py
@@ -29,6 +29,8 @@ __docformat__ = "plaintext en"
 import lassomod
 from lasso_strings import *
 
+_inited = False
+
 class Error(Exception):
     def __init__(self, msg):
         self.msg = msg
@@ -39,14 +41,23 @@ def init():
     """
     Init Lasso Library.
     """
+    global _inited
+    if _inited:
+        raise Error('Lasso already inited')
+    _inited = True
     return lassomod.init()
 
 def shutdown():
     """
     Shutdown Lasso Library.
     """
+    global _inited
+    if not _inited:
+        raise Error('Lasso not inited or already shotdown')
+    _inited = False
     return lassomod.shutdown()
 
+
 ################################################################################
 # xml : low level classes
 ################################################################################
@@ -1221,3 +1232,7 @@ class Lecp:
 
     def process_authn_response_envelope_msg(self, response_msg):
         return lassomod.lecp_process_authn_response_envelope_msg(self, response_msg)
+
+
+if not _inited:
+    init()
diff --git a/python/tests/login_tests.py b/python/tests/login_tests.py
index 872610a2..26f79cb4 100644
--- a/python/tests/login_tests.py
+++ b/python/tests/login_tests.py
@@ -34,7 +34,6 @@ sys.path.insert(0, '../.libs')
 
 
 import lasso
-lasso.init()
 
 
 class LoginTestCase(unittest.TestCase):