12 files changed, 468 insertions, 0 deletions
diff --git a/gnutls-1.1.9/examples/README b/gnutls-1.1.9/examples/README
new file mode 100644
index 0000000..343359f
--- /dev/null
+++ b/gnutls-1.1.9/examples/README
@@ -0,0 +1,21 @@
+
+This directory holds some examples of using python-gnutls. 
+
+- An example of writing a synchronous client and server using the
+  ClientSession and ServerSession classes from python-gnutls is
+  given in client.py and server.py
+
+- An example of writing an asynchronous client and server using the
+  python-gnutls twisted interface is given in twisted-client.py and
+  twisted-server.py
+
+- An example of working with X509 certificates and their attributes
+  as well as using a CRL to check their revocation is in crypto.py
+
+
+
+To run the examples without installing python-gnutls, run the following
+command prior to trying the examples (after python-gnutls was built):
+
+export PYTHONPATH=/path/to/python-gnutls
+
diff --git a/gnutls-1.1.9/examples/certs/ca.pem b/gnutls-1.1.9/examples/certs/ca.pem
new file mode 100644
index 0000000..6b81c20
--- /dev/null
+++ b/gnutls-1.1.9/examples/certs/ca.pem
@@ -0,0 +1,42 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/gnutls-1.1.9/examples/certs/crl.pem b/gnutls-1.1.9/examples/certs/crl.pem
new file mode 100644
index 0000000..d1eb221
--- /dev/null
+++ b/gnutls-1.1.9/examples/certs/crl.pem
@@ -0,0 +1,19 @@
+-----BEGIN X509 CRL-----
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+-----END X509 CRL-----
diff --git a/gnutls-1.1.9/examples/certs/revoked.crt b/gnutls-1.1.9/examples/certs/revoked.crt
new file mode 100644
index 0000000..d41bd3a
--- /dev/null
+++ b/gnutls-1.1.9/examples/certs/revoked.crt
@@ -0,0 +1,34 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/gnutls-1.1.9/examples/certs/revoked.key b/gnutls-1.1.9/examples/certs/revoked.key
new file mode 100644
index 0000000..f223826
--- /dev/null
+++ b/gnutls-1.1.9/examples/certs/revoked.key
@@ -0,0 +1,15 @@
+-----BEGIN RSA PRIVATE KEY-----
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diff --git a/gnutls-1.1.9/examples/certs/valid.crt b/gnutls-1.1.9/examples/certs/valid.crt
new file mode 100644
index 0000000..10a3066
--- /dev/null
+++ b/gnutls-1.1.9/examples/certs/valid.crt
@@ -0,0 +1,34 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/gnutls-1.1.9/examples/certs/valid.key b/gnutls-1.1.9/examples/certs/valid.key
new file mode 100644
index 0000000..694caed
--- /dev/null
+++ b/gnutls-1.1.9/examples/certs/valid.key
@@ -0,0 +1,15 @@
+-----BEGIN RSA PRIVATE KEY-----
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+fkQy21b8qCM8iukp8bc7MOvvpbarWJ9eA1K7c+OVuG7Qpka9jW47LxXNq3pPsD9K
+uTgZ0ct6fyeEtoLOLwJAM1Eeopu3wSkNbf2p4TbhePc5ASZRR2c1GZZQE4GIYamB
+yEk53aQ5MDpHLffWdWI7vZ449s/AHwrN6txlu/+VTQ==
+-----END RSA PRIVATE KEY-----
diff --git a/gnutls-1.1.9/examples/client.py b/gnutls-1.1.9/examples/client.py
new file mode 100755
index 0000000..c6e4208
--- /dev/null
+++ b/gnutls-1.1.9/examples/client.py
@@ -0,0 +1,32 @@
+#!/usr/bin/env python
+
+"""Synchronous client using python-gnutls"""
+
+import sys
+import os
+import socket
+
+from gnutls.crypto import *
+from gnutls.connection import *
+
+script_path = os.path.realpath(os.path.dirname(sys.argv[0]))
+certs_path = os.path.join(script_path, 'certs')
+
+cert = X509Certificate(open(certs_path + '/valid.crt').read())
+key = X509PrivateKey(open(certs_path + '/valid.key').read())
+ca = X509Certificate(open(certs_path + '/ca.pem').read())
+crl = X509CRL(open(certs_path + '/crl.pem').read())
+cred = X509Credentials(cert, key)
+
+sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+session = ClientSession(sock, cred)
+
+session.connect(('localhost', 10000))
+session.handshake()
+session.send("test\r\n")
+buf = session.recv(1024)
+print 'Received: ', buf.rstrip()
+session.bye()
+session.shutdown()
+session.close()
+
diff --git a/gnutls-1.1.9/examples/crypto.py b/gnutls-1.1.9/examples/crypto.py
new file mode 100755
index 0000000..cbb29c9
--- /dev/null
+++ b/gnutls-1.1.9/examples/crypto.py
@@ -0,0 +1,84 @@
+#!/usr/bin/env python
+
+"""Cryptographic examples using python-gnutls"""
+
+import sys
+import os
+import time
+
+from gnutls.crypto import *
+
+script_path = os.path.realpath(os.path.dirname(sys.argv[0]))
+certs_path = os.path.join(script_path, 'certs')
+
+cert = X509Certificate(open(certs_path + '/valid.crt').read())
+crl = X509CRL(open(certs_path + '/crl.pem').read())
+
+print ''
+
+print 'CRL certs/crl.pem:'
+print '------------------'
+print 'CRL issuer:'
+print '  CN = %s' % crl.issuer.CN # or crl.issuer.common_name
+print '  O  = %s' % crl.issuer.O  # or crl.issuer.organization
+print '  OU = %s' % crl.issuer.OU # or crl.issuer.organization_unit
+print '  C  = %s' % crl.issuer.C  # or crl.issuer.country
+print '  ST = %s' % crl.issuer.ST # or crl.issuer.state
+print '  L  = %s' % crl.issuer.L  # or crl.issuer.locality
+print '  EMAIL = %s' % crl.issuer.EMAIL # or crl.issuer.email
+print 'CRL version:', crl.version
+print 'CRL count:  ', crl.count
+print ''
+
+print 'Certificate certs/valid.crt:'
+print '----------------------------'
+print 'Cert subject:'
+print '  CN = %s' % cert.subject.CN # or cert.subject.common_name
+print '  O  = %s' % cert.subject.O  # or cert.subject.organization
+print '  OU = %s' % cert.subject.OU # or cert.subject.organization_unit
+print '  C  = %s' % cert.subject.C  # or cert.subject.country
+print '  ST = %s' % cert.subject.ST # or cert.subject.state
+print '  L  = %s' % cert.subject.L  # or cert.subject.locality
+print '  EMAIL = %s' % cert.subject.EMAIL # or cert.subject.email
+print 'Cert issuer:'
+print '  CN = %s' % cert.issuer.CN # or cert.issuer.common_name
+print '  O  = %s' % cert.issuer.O  # or cert.issuer.organization
+print '  OU = %s' % cert.issuer.OU # or cert.issuer.organization_unit
+print '  C  = %s' % cert.issuer.C  # or cert.issuer.country
+print '  ST = %s' % cert.issuer.ST # or cert.issuer.state
+print '  L  = %s' % cert.issuer.L  # or cert.issuer.locality
+print '  EMAIL = %s' % cert.issuer.EMAIL # or cert.issuer.email
+print 'Cert serial:    ', cert.serial_number
+print 'Cert version:   ', cert.version
+print 'Cert activation:', time.ctime(cert.activation_time)
+print 'Cert expiration:', time.ctime(cert.expiration_time)
+print 'Cert is revoked:', crl.is_revoked(cert)
+print ''
+
+cert = X509Certificate(open(certs_path + '/revoked.crt').read())
+
+print 'Certificate certs/revoked.crt:'
+print '------------------------------'
+print 'Cert subject:'
+print '  CN = %s' % cert.subject.common_name       # here we use long names
+print '  O  = %s' % cert.subject.organization
+print '  OU = %s' % cert.subject.organization_unit
+print '  C  = %s' % cert.subject.country
+print '  ST = %s' % cert.subject.state
+print '  L  = %s' % cert.subject.locality
+print '  EMAIL = %s' % cert.subject.email
+print 'Cert issuer:'
+print '  CN = %s' % cert.issuer.common_name
+print '  O  = %s' % cert.issuer.organization
+print '  OU = %s' % cert.issuer.organization_unit
+print '  C  = %s' % cert.issuer.country
+print '  ST = %s' % cert.issuer.state
+print '  L  = %s' % cert.issuer.locality
+print '  EMAIL = %s' % cert.issuer.email
+print 'Cert serial:    ', cert.serial_number
+print 'Cert version:   ', cert.version
+print 'Cert activation:', time.ctime(cert.activation_time)
+print 'Cert expiration:', time.ctime(cert.expiration_time)
+print 'Cert is revoked:', crl.is_revoked(cert)
+print ''
+
diff --git a/gnutls-1.1.9/examples/server.py b/gnutls-1.1.9/examples/server.py
new file mode 100755
index 0000000..e7d744d
--- /dev/null
+++ b/gnutls-1.1.9/examples/server.py
@@ -0,0 +1,64 @@
+#!/usr/bin/env python
+
+"""Synchronous server using python-gnutls"""
+
+import sys
+import os
+import socket
+
+from gnutls.crypto import *
+from gnutls.connection import *
+
+script_path = os.path.realpath(os.path.dirname(sys.argv[0]))
+certs_path = os.path.join(script_path, 'certs')
+
+cert = X509Certificate(open(certs_path + '/valid.crt').read())
+key = X509PrivateKey(open(certs_path + '/valid.key').read())
+ca = X509Certificate(open(certs_path + '/ca.pem').read())
+crl = X509CRL(open(certs_path + '/crl.pem').read())
+cred = X509Credentials(cert, key, [ca], [crl])
+
+sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+ssf = ServerSessionFactory(sock, cred)
+ssf.bind(('0.0.0.0', 10000))
+ssf.listen(100)
+
+while True:
+    session, address = ssf.accept()
+    try:
+        session.handshake()
+        peer_cert = session.peer_certificate
+        try:
+            peer_name = peer_cert.subject
+        except AttributeError:
+            peer_name = 'Unknown'
+        print '\nNew connection from:', peer_name
+        print 'Protocol:     ', session.protocol
+        print 'KX algorithm: ', session.kx_algorithm
+        print 'Cipher:       ', session.cipher
+        print 'MAC algorithm:', session.mac_algorithm
+        print 'Compression:  ', session.compression
+        session.verify_peer()
+        cred.check_certificate(peer_cert, cert_name='peer certificate')
+    except Exception, e:
+        print 'Handshake failed:', e
+        session.bye()
+    else:
+        while True:
+            try:
+                buf = session.recv(1024)
+                if buf == 0 or buf == '':
+                    print "Peer has closed the session"
+                    break
+                else:
+                    if buf.strip().lower() == 'quit':
+                        print "Got quit command, closing connection"
+                        session.bye()
+                        break
+                session.send(buf)
+            except Exception, e:
+                print "Error in reception: ", e
+                break
+    session.shutdown()
+    session.close()
diff --git a/gnutls-1.1.9/examples/twisted-client.py b/gnutls-1.1.9/examples/twisted-client.py
new file mode 100755
index 0000000..0bcb8ca
--- /dev/null
+++ b/gnutls-1.1.9/examples/twisted-client.py
@@ -0,0 +1,49 @@
+#!/usr/bin/env python
+
+"""Asynchronous client using Twisted with GNUTLS"""
+
+import sys
+import os
+
+from twisted.internet.protocol import ClientFactory
+from twisted.protocols.basic import LineOnlyReceiver
+from twisted.internet import reactor
+
+from gnutls.constants import *
+from gnutls.crypto import *
+from gnutls.errors import *
+from gnutls.interfaces.twisted import X509Credentials
+
+class EchoProtocol(LineOnlyReceiver):
+
+    def connectionMade(self):
+        self.sendLine('echo')
+
+    def lineReceived(self, line):
+        print 'received: ', line
+        self.transport.loseConnection()
+
+    def connectionLost(self, reason):
+        reactor.stop()
+
+class EchoFactory(ClientFactory):
+    protocol = EchoProtocol
+
+    def clientConnectionFailed(self, connector, err):
+        print err.value
+        reactor.stop()
+
+
+script_path = os.path.realpath(os.path.dirname(sys.argv[0]))
+certs_path = os.path.join(script_path, 'certs')
+
+cert = X509Certificate(open(certs_path + '/valid.crt').read())
+key = X509PrivateKey(open(certs_path + '/valid.key').read())
+ca = X509Certificate(open(certs_path + '/ca.pem').read())
+crl = X509CRL(open(certs_path + '/crl.pem').read())
+cred = X509Credentials(cert, key, [ca])
+cred.verify_peer = True
+
+reactor.connectTLS('localhost', 10000, EchoFactory(), cred)
+reactor.run()
+
diff --git a/gnutls-1.1.9/examples/twisted-server.py b/gnutls-1.1.9/examples/twisted-server.py
new file mode 100755
index 0000000..67e14e6
--- /dev/null
+++ b/gnutls-1.1.9/examples/twisted-server.py
@@ -0,0 +1,59 @@
+#!/usr/bin/env python
+
+"""Asynchronous server using Twisted with GNUTLS"""
+
+import sys
+import os
+
+from twisted.internet.protocol import Factory
+from twisted.protocols.basic import LineOnlyReceiver
+from twisted.internet.error import CannotListenError, ConnectionDone
+from twisted.internet import reactor
+
+from gnutls.constants import *
+from gnutls.crypto import *
+from gnutls.errors import *
+from gnutls.interfaces.twisted import X509Credentials
+
+class EchoProtocol(LineOnlyReceiver):
+
+    def connectionMade(self):
+        session = self.transport.socket
+        try:
+            peer_name = session.peer_certificate.subject
+        except AttributeError:
+            peer_name = 'Unknown'
+        print '\nNew connection from:', peer_name
+        print 'Protocol:     ', session.protocol
+        print 'KX algorithm: ', session.kx_algorithm
+        print 'Cipher:       ', session.cipher
+        print 'MAC algorithm:', session.mac_algorithm
+        print 'Compression:  ', session.compression
+
+    def lineReceived(self, line):
+        if line == 'quit':
+            self.transport.loseConnection()
+            return
+        self.sendLine(line)
+
+    def connectionLost(self, reason):
+        if reason.type != ConnectionDone:
+            print "Connection was lost:", str(reason.value)
+
+class EchoFactory(Factory):
+    protocol = EchoProtocol
+
+script_path = os.path.realpath(os.path.dirname(sys.argv[0]))
+certs_path = os.path.join(script_path, 'certs')
+
+cert = X509Certificate(open(certs_path + '/valid.crt').read())
+key = X509PrivateKey(open(certs_path + '/valid.key').read())
+ca = X509Certificate(open(certs_path + '/ca.pem').read())
+crl = X509CRL(open(certs_path + '/crl.pem').read())
+cred = X509Credentials(cert, key, [ca], [crl])
+cred.verify_peer = True
+cred.session_params.compressions = (COMP_LZO, COMP_DEFLATE, COMP_NULL)
+
+reactor.listenTLS(10000, EchoFactory(), cred)
+reactor.run()
+