From 6e5e9c8e969207e68665f12665a54768090897e4 Mon Sep 17 00:00:00 2001
From: Narayan Desai <desai@mcs.anl.gov>
Date: Mon, 12 Mar 2007 16:22:51 +0000
Subject: Merged in certs branch in preparation for 0.9.3pre2

git-svn-id: https://svn.mcs.anl.gov/repos/bcfg/trunk/bcfg2@2928 ce84e21b-d406-0410-9b95-82705330c041
---
 src/lib/tlslite/integration/SMTP_TLS.py | 114 ++++++++++++++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100755 src/lib/tlslite/integration/SMTP_TLS.py

(limited to 'src/lib/tlslite/integration/SMTP_TLS.py')

diff --git a/src/lib/tlslite/integration/SMTP_TLS.py b/src/lib/tlslite/integration/SMTP_TLS.py
new file mode 100755
index 000000000..203cc0b7f
--- /dev/null
+++ b/src/lib/tlslite/integration/SMTP_TLS.py
@@ -0,0 +1,114 @@
+"""TLS Lite + smtplib."""
+
+from smtplib import SMTP
+from Bcfg2.tlslite.TLSConnection import TLSConnection
+from Bcfg2.tlslite.integration.ClientHelper import ClientHelper
+
+class SMTP_TLS(SMTP):
+    """This class extends L{smtplib.SMTP} with TLS support."""
+
+    def starttls(self,
+                 username=None, password=None, sharedKey=None,
+                 certChain=None, privateKey=None,
+                 cryptoID=None, protocol=None,
+                 x509Fingerprint=None,
+                 x509TrustList=None, x509CommonName=None,
+                 settings=None):
+        """Puts the connection to the SMTP server into TLS mode.
+
+        If the server supports TLS, this will encrypt the rest of the SMTP
+        session.
+
+        For client authentication, use one of these argument
+        combinations:
+         - username, password (SRP)
+         - username, sharedKey (shared-key)
+         - certChain, privateKey (certificate)
+
+        For server authentication, you can either rely on the
+        implicit mutual authentication performed by SRP or
+        shared-keys, or you can do certificate-based server
+        authentication with one of these argument combinations:
+         - cryptoID[, protocol] (requires cryptoIDlib)
+         - x509Fingerprint
+         - x509TrustList[, x509CommonName] (requires cryptlib_py)
+
+        Certificate-based server authentication is compatible with
+        SRP or certificate-based client authentication.  It is
+        not compatible with shared-keys.
+
+        The caller should be prepared to handle TLS-specific
+        exceptions.  See the client handshake functions in
+        L{tlslite.TLSConnection.TLSConnection} for details on which
+        exceptions might be raised.
+
+        @type username: str
+        @param username: SRP or shared-key username.  Requires the
+        'password' or 'sharedKey' argument.
+
+        @type password: str
+        @param password: SRP password for mutual authentication.
+        Requires the 'username' argument.
+
+        @type sharedKey: str
+        @param sharedKey: Shared key for mutual authentication.
+        Requires the 'username' argument.
+
+        @type certChain: L{tlslite.X509CertChain.X509CertChain} or
+        L{cryptoIDlib.CertChain.CertChain}
+        @param certChain: Certificate chain for client authentication.
+        Requires the 'privateKey' argument.  Excludes the SRP or
+        shared-key related arguments.
+
+        @type privateKey: L{tlslite.utils.RSAKey.RSAKey}
+        @param privateKey: Private key for client authentication.
+        Requires the 'certChain' argument.  Excludes the SRP or
+        shared-key related arguments.
+
+        @type cryptoID: str
+        @param cryptoID: cryptoID for server authentication.  Mutually
+        exclusive with the 'x509...' arguments.
+
+        @type protocol: str
+        @param protocol: cryptoID protocol URI for server
+        authentication.  Requires the 'cryptoID' argument.
+
+        @type x509Fingerprint: str
+        @param x509Fingerprint: Hex-encoded X.509 fingerprint for
+        server authentication.  Mutually exclusive with the 'cryptoID'
+        and 'x509TrustList' arguments.
+
+        @type x509TrustList: list of L{tlslite.X509.X509}
+        @param x509TrustList: A list of trusted root certificates.  The
+        other party must present a certificate chain which extends to
+        one of these root certificates.  The cryptlib_py module must be
+        installed to use this parameter.  Mutually exclusive with the
+        'cryptoID' and 'x509Fingerprint' arguments.
+
+        @type x509CommonName: str
+        @param x509CommonName: The end-entity certificate's 'CN' field
+        must match this value.  For a web server, this is typically a
+        server name such as 'www.amazon.com'.  Mutually exclusive with
+        the 'cryptoID' and 'x509Fingerprint' arguments.  Requires the
+        'x509TrustList' argument.
+
+        @type settings: L{tlslite.HandshakeSettings.HandshakeSettings}
+        @param settings: Various settings which can be used to control
+        the ciphersuites, certificate types, and SSL/TLS versions
+        offered by the client.
+        """
+        (resp, reply) = self.docmd("STARTTLS")
+        if resp == 220:
+            helper = ClientHelper(
+                     username, password, sharedKey,
+                     certChain, privateKey,
+                     cryptoID, protocol,
+                     x509Fingerprint,
+                     x509TrustList, x509CommonName,
+                     settings)
+            conn = TLSConnection(self.sock)
+            conn.closeSocket = True
+            helper._handshake(conn)
+            self.sock = conn
+            self.file = conn.makefile('rb')
+        return (resp, reply)
-- 
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