Hi,
I am trying to get XSRF Protected Services to work with my GWT project.
I've coded everything and am trying to test. I get a strange error in
JavaScript Console as follows:
Uncaught com.google.gwt.user.client.rpc.RpcTokenException: Invalid RPC
token (Invalid RpcToken type: expected
'com.google.gwt.user.client.rpc.XsrfToken' but got 'class
com.google.gwt.user.client.rpc.XsrfToken')
I downloaded the GWT 2.6 code using GIT and have grepped the code. I see
that the file that is doing this is
com.google.gwt.user.rebind.rpc.ProxyCreator.java
in the method generateCheckRpcTokenTypeOverride. However, I'm at a loss to
what it means. I have checked my class path for duplicate instances of
XsrfToken but it is only found in gwt-servlet.jar in my war file.
Any ideas? Below is the copied generateCheckRpcTokenTypeOverride method.
Thanks in advance!
Patrick
protected void generateCheckRpcTokenTypeOverride(SourceWriter srcWriter,
TypeOracle typeOracle,
SerializableTypeOracle typesSentFromBrowser) {
JClassType rpcTokenType = typeOracle.findType(RpcToken.class.getName());
JClassType[] rpcTokenSubtypes = rpcTokenType.getSubtypes();
String rpcTokenImplementation = "";
for (JClassType rpcTokenSubtype : rpcTokenSubtypes) {
if (typesSentFromBrowser.isSerializable(rpcTokenSubtype)) {
if (rpcTokenImplementation.length() > 0) {
// >1 implematation of RpcToken, bail
rpcTokenImplementation = "";
break;
} else {
rpcTokenImplementation = rpcTokenSubtype.getQualifiedSourceName();
}
}
}
if (rpcTokenImplementation.length() > 0) {
srcWriter.println("@Override");
srcWriter.println("protected void checkRpcTokenType(RpcToken token) {"
);
srcWriter.indent();
srcWriter.println("if (!(token instanceof " + rpcTokenImplementation
+ ")) {");
srcWriter.indent();
srcWriter.println("throw new RpcTokenException(\"Invalid RpcToken
type: " + "expected '"
+ rpcTokenImplementation + "' but got '\" + " + "token.getClass()
+ \"'\");");
srcWriter.outdent();
srcWriter.println("}");
srcWriter.outdent();
srcWriter.println("}");
}
}
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