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HTTPCLIENT-1881: Allow truncated NTLM packets to work with this client.

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This commit is contained in:
Karl Wright 2017-11-18 06:54:59 -05:00
parent d6db9ab3d0
commit 97eee9e0e0
1 changed files with 3 additions and 4 deletions
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7
httpclient/src/main/java/org/apache/http/impl/auth/NTLMEngineImpl.java
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@ -211,7 +211,7 @@ static String getType3Message(final String user, final String password, final St
private static int readULong(final byte[] src, final int index) throws NTLMEngineException {
if (src.length < index + 4) {
throw new NTLMEngineException("NTLM authentication - buffer too small for DWORD");
return 0;
}
return (src[index] & 0xff) | ((src[index + 1] & 0xff) << 8)
| ((src[index + 2] & 0xff) << 16) | ((src[index + 3] & 0xff) << 24);
@ -219,7 +219,7 @@ private static int readULong(final byte[] src, final int index) throws NTLMEngin
private static int readUShort(final byte[] src, final int index) throws NTLMEngineException {
if (src.length < index + 2) {
throw new NTLMEngineException("NTLM authentication - buffer too small for WORD");
return 0;
}
return (src[index] & 0xff) | ((src[index + 1] & 0xff) << 8);
}
@ -228,8 +228,7 @@ private static byte[] readSecurityBuffer(final byte[] src, final int index) thro
final int length = readUShort(src, index);
final int offset = readULong(src, index + 4);
if (src.length < offset + length) {
throw new NTLMEngineException(
"NTLM authentication - buffer too small for data item");
return new byte[length];
}
final byte[] buffer = new byte[length];
System.arraycopy(src, offset, buffer, 0, length);