Hi,
I just realized that I forgot to include part of the relevant code of my
implementation (the definition of 'inflate'). Once again, I'll very much
appreciate any help with this.
-Patricia
Here it goes:
===================================================================
private static byte[] inflate(byte[] bytes, boolean nowrap)
throws IOException {
Inflater decompressor = null;
InflaterInputStream decompressorStream = null;
ByteArrayOutputStream out = new ByteArrayOutputStream();
try {
decompressor = new Inflater(nowrap);
decompressorStream = new InflaterInputStream(new
ByteArrayInputStream(bytes), decompressor);
byte[] buf = new byte[1024];
int count;
while ((count = decompressorStream.read(buf)) != -1) {
out.write(buf, 0, count);
}
return out.toByteArray();
} finally {
if (decompressor != null) decompressor.end();
try {
if (decompressorStream != null) decompressorStream.close();
} catch (IOException ioe) {
/*ignore*/
}
try {
if (out != null) out.close();
} catch (IOException ioe) {
/*ignore*/
}
}
}
============================================================================
=====================
Patricia Goldweic
[EMAIL PROTECTED]
_____
From: [email protected]
[mailto:[EMAIL PROTECTED] On Behalf Of Patricia Goldweic
Sent: Thursday, September 04, 2008 4:40 PM
To: [email protected]
Subject: [google-apps-apis] Java SSO intermittent problem
Hi,
My SSO java code started failing intermittently with an exception of the
type 'Unexpected end of ZLIB input stream' when decoding the SAML request.
Has anybody gone through this before?
Here is my code for decoding, based on the original reference
implementation, and somewhat modified based on suggestions in this list from
some time ago (by Nate) as to how to avoid intermittent exceptions related
to buffer size:
=======================================================================
private String decodeAuthnRequestXML(String encodedRequestXmlString) throws
SamlException {
String uncompressed = null;
try {
// URL decode
// No need to URL decode: auto decoded by request.getParameter() method
// Base64 decode
Base64 base64Decoder = new Base64();
byte[] xmlBytes = encodedRequestXmlString.getBytes("UTF-8");
byte[] base64DecodedByteArray = base64Decoder.decode(xmlBytes);
// Uncompress the AuthnRequest data using a stream decompressor, as
suggested by Nate ( Google Apps Api's group)
try {
uncompressed = new String(inflate(base64DecodedByteArray, true));
} catch (ZipException e) {
uncompressed = new String(inflate(base64DecodedByteArray, false));
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
throw new SamlException("Error decoding AuthnRequest: " +
"Check decoding scheme - " + e.getMessage());
} catch (Exception e) {
e.printStackTrace();
throw new SamlException("Error decoding AuthnRequest: " +
"Check decoding scheme - " + e.getMessage());
}
return uncompressed;
}
============================================================================
======================
I'll appreciate any ideas/suggestions you may have. Thanks,
-Patricia
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