That encoding for SAML is .... deflated, then base64 encoded.
So to reverse that you would need to base64 decode, then Inflate.
You could do it with
I think I would prefer to do it with a Java callout. It's pretty simple. Like this.
public ExecutionResult execute (final MessageContext msgCtxt,
final ExecutionContext execContext) {
try {
String inputVariableName = getInput(msgCtxt);
String outputVariableName = getOutput(msgCtxt);
String encodedString = msgCtxt.getVariable(inputVariableName);
// base64-Decode the String into bytes
byte[] decoded = BaseEncoding.base64().decode(encodedString);
// Decompress the bytes
byte[] decompressed = decompress(decoded);
// Decode the bytes into a String
String outputString = new String(decompressed, 0, decompressed.length, "UTF-8");
msgCtxt.setVariable(outputVariableName, outputString);
return ExecutionResult.SUCCESS;
}
catch (java.lang.Exception exc1) {
msgCtxt.setVariable(varName("error"), exc1.getMessage());
msgCtxt.setVariable(varName("stacktrace"), ExceptionUtils.getStackTrace(exc1));
// The following would go to stdout of Message processor
// System.out.println("Exception:" + exc1.toString());
// exc1.printStackTrace();
return ExecutionResult.ABORT;
}
}
See attached for a working example.
apigee-edge-java-callout-samldecoder-20170901-1848.zip
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