Perform tlslite 0.3.8 -> 0.4.6 renames ahead of time.

third_party/tlslite/tlslite/HandshakeSettings.py

Index: third_party/tlslite/tlslite/HandshakeSettings.py
diff --git a/third_party/tlslite/tlslite/HandshakeSettings.py b/third_party/tlslite/tlslite/HandshakeSettings.py
deleted file mode 100644
index c7c3223e515f1e6d6c01a968f25ed58c1fa38597..0000000000000000000000000000000000000000
--- a/third_party/tlslite/tlslite/HandshakeSettings.py
+++ /dev/null
@@ -1,159 +0,0 @@
-"""Class for setting handshake parameters."""
-
-from constants import CertificateType
-from utils import cryptomath
-from utils import cipherfactory
-
-class HandshakeSettings:
-    """This class encapsulates various parameters that can be used with
-    a TLS handshake.
-    @sort: minKeySize, maxKeySize, cipherNames, certificateTypes,
-    minVersion, maxVersion
-
-    @type minKeySize: int
-    @ivar minKeySize: The minimum bit length for asymmetric keys.
-
-    If the other party tries to use SRP, RSA, or Diffie-Hellman
-    parameters smaller than this length, an alert will be
-    signalled.  The default is 1023.
-
-    @type maxKeySize: int
-    @ivar maxKeySize: The maximum bit length for asymmetric keys.
-
-    If the other party tries to use SRP, RSA, or Diffie-Hellman
-    parameters larger than this length, an alert will be signalled.
-    The default is 8193.
-
-    @type cipherNames: list
-    @ivar cipherNames: The allowed ciphers, in order of preference.
-
-    The allowed values in this list are 'aes256', 'aes128', '3des', and
-    'rc4'.  If these settings are used with a client handshake, they
-    determine the order of the ciphersuites offered in the ClientHello
-    message.
-
-    If these settings are used with a server handshake, the server will
-    choose whichever ciphersuite matches the earliest entry in this
-    list.
-
-    NOTE:  If '3des' is used in this list, but TLS Lite can't find an
-    add-on library that supports 3DES, then '3des' will be silently
-    removed.
-
-    The default value is ['aes256', 'aes128', '3des', 'rc4'].
-
-    @type certificateTypes: list
-    @ivar certificateTypes: The allowed certificate types, in order of
-    preference.
-
-    The allowed values in this list are 'x509' and 'cryptoID'.  This
-    list is only used with a client handshake.  The client will
-    advertise to the server which certificate types are supported, and
-    will check that the server uses one of the appropriate types.
-
-    NOTE:  If 'cryptoID' is used in this list, but cryptoIDlib is not
-    installed, then 'cryptoID' will be silently removed.
-
-    @type minVersion: tuple
-    @ivar minVersion: The minimum allowed SSL/TLS version.
-
-    This variable can be set to (3,0) for SSL 3.0, (3,1) for
-    TLS 1.0, or (3,2) for TLS 1.1.  If the other party wishes to
-    use a lower version, a protocol_version alert will be signalled.
-    The default is (3,0).
-
-    @type maxVersion: tuple
-    @ivar maxVersion: The maximum allowed SSL/TLS version.
-
-    This variable can be set to (3,0) for SSL 3.0, (3,1) for
-    TLS 1.0, or (3,2) for TLS 1.1.  If the other party wishes to
-    use a higher version, a protocol_version alert will be signalled.
-    The default is (3,2).  (WARNING: Some servers may (improperly)
-    reject clients which offer support for TLS 1.1.  In this case,
-    try lowering maxVersion to (3,1)).
-    """
-    def __init__(self):
-        self.minKeySize = 1023
-        self.maxKeySize = 8193
-        self.cipherNames = ["aes256", "aes128", "3des", "rc4"]
-        self.cipherImplementations = ["cryptlib", "openssl", "pycrypto",
-                                      "python"]
-        self.certificateTypes = ["x509", "cryptoID"]
-        self.minVersion = (3,0)
-        self.maxVersion = (3,2)
-
-    #Filters out options that are not supported
-    def _filter(self):
-        other = HandshakeSettings()
-        other.minKeySize = self.minKeySize
-        other.maxKeySize = self.maxKeySize
-        other.cipherNames = self.cipherNames
-        other.cipherImplementations = self.cipherImplementations
-        other.certificateTypes = self.certificateTypes
-        other.minVersion = self.minVersion
-        other.maxVersion = self.maxVersion
-
-        if not cipherfactory.tripleDESPresent:
-            other.cipherNames = [e for e in self.cipherNames if e != "3des"]
-        if len(other.cipherNames)==0:
-            raise ValueError("No supported ciphers")
-
-        try:
-            import cryptoIDlib
-        except ImportError:
-            other.certificateTypes = [e for e in self.certificateTypes \
-                                      if e != "cryptoID"]
-        if len(other.certificateTypes)==0:
-            raise ValueError("No supported certificate types")
-
-        if not cryptomath.cryptlibpyLoaded:
-            other.cipherImplementations = [e for e in \
-                self.cipherImplementations if e != "cryptlib"]
-        if not cryptomath.m2cryptoLoaded:
-            other.cipherImplementations = [e for e in \
-                other.cipherImplementations if e != "openssl"]
-        if not cryptomath.pycryptoLoaded:
-            other.cipherImplementations = [e for e in \
-                other.cipherImplementations if e != "pycrypto"]
-        if len(other.cipherImplementations)==0:
-            raise ValueError("No supported cipher implementations")
-
-        if other.minKeySize<512:
-            raise ValueError("minKeySize too small")
-        if other.minKeySize>16384:
-            raise ValueError("minKeySize too large")
-        if other.maxKeySize<512:
-            raise ValueError("maxKeySize too small")
-        if other.maxKeySize>16384:
-            raise ValueError("maxKeySize too large")
-        for s in other.cipherNames:
-            if s not in ("aes256", "aes128", "rc4", "3des"):
-                raise ValueError("Unknown cipher name: '%s'" % s)
-        for s in other.cipherImplementations:
-            if s not in ("cryptlib", "openssl", "python", "pycrypto"):
-                raise ValueError("Unknown cipher implementation: '%s'" % s)
-        for s in other.certificateTypes:
-            if s not in ("x509", "cryptoID"):
-                raise ValueError("Unknown certificate type: '%s'" % s)
-
-        if other.minVersion > other.maxVersion:
-            raise ValueError("Versions set incorrectly")
-
-        if not other.minVersion in ((3,0), (3,1), (3,2)):
-            raise ValueError("minVersion set incorrectly")
-
-        if not other.maxVersion in ((3,0), (3,1), (3,2)):
-            raise ValueError("maxVersion set incorrectly")
-
-        return other
-
-    def _getCertificateTypes(self):
-        l = []
-        for ct in self.certificateTypes:
-            if ct == "x509":
-                l.append(CertificateType.x509)
-            elif ct == "cryptoID":
-                l.append(CertificateType.cryptoID)
-            else:
-                raise AssertionError()
-        return l