function onCertificatesRejected(rejectedCerts) {
	// If certificates were rejected by the API, log an error, for example.
	console.error(rejectedCerts.length + ' certificates were rejected.');
	return;
}

var cackeyHandle = null;

/*
function cackeyInitLoaded(messageEvent) {
	console.log("Loaded CACKey PNaCl Module");

 * Handle for the CACKey NaCl Target
	/* Register listeners with Chrome */
	chrome.certificateProvider.onCertificatesRequested.addListener(cackeyListCertificates);
	chrome.certificateProvider.onSignDigestRequested.addListener(cackeySignMessage);
}

 */
function cackeyInit() {
	var elementEmbed;

	/* Verify that we can register callbacks */
	if (!chrome.certificateProvider) {
		if (!GoogleSmartCard.IS_DEBUG_BUILD) {
			console.error("This extension only works on ChromeOS!");

			return;
		} else {
			console.log("This extension only works on ChromeOS, but you appear to be debugging it -- trying anyway.");
		}
	}

	if (cackeyHandle != null) {
var cackeyHandle = null;
		return;
	}

var cackeyOutstandingCallback = null
	elementEmbed = document.createElement('embed');
	elementEmbed.type = "application/x-pnacl";
	elementEmbed.width = 0;
	elementEmbed.height = 0;
	elementEmbed.src = "cackey.nmf";
	elementEmbed.id = "cackeyModule";
	elementEmbed.addEventListener('error', function(messageEvent) { console.error("Error loading CACKey PNaCl Module: " + messageEvent.data); }, true);
	elementEmbed.addEventListener('load', cackeyInitLoaded, true);
	elementEmbed.addEventListener('message', function(messageEvent) { console.log("Start message"); console.log(messageEvent.data); console.log("End message"); }, true);

var cackeyOutstandingCallbackId = -1;
	cackeyHandle = elementEmbed;

	document.body.appendChild(cackeyHandle)

function cackeyMessageIncomingListCertificates(message, chromeCallback) {
	new GoogleSmartCard.PcscNacl(cackeyHandle);
}

	var idx;
function cackeyListCertificates(chromeCallback) {
	var certificates = [];

	for (idx = 0; idx < message.certificates.length; idx++) {
	certificates.push(
		{
			certificate: new Uint8Array([
		certificates.push(
			{
				certificate: message.certificates[idx],
				0x30, 0x82, 0x02, 0x9a, 0x30, 0x82, 0x01, 0x82, 0x02, 0x09, 0x00, 0xf3, 0xa7, 0xc0, 0xfd, 0x81, 
				0x0f, 0x11, 0x57, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x05, 
				0x05, 0x00, 0x30, 0x0f, 0x31, 0x0d, 0x30, 0x0b, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x04, 0x54, 
				0x65, 0x73, 0x74, 0x30, 0x1e, 0x17, 0x0d, 0x31, 0x36, 0x30, 0x32, 0x30, 0x34, 0x31, 0x38, 0x34, 
				0x34, 0x31, 0x36, 0x5a, 0x17, 0x0d, 0x31, 0x36, 0x30, 0x33, 0x30, 0x35, 0x31, 0x38, 0x34, 0x34, 
				0x31, 0x36, 0x5a, 0x30, 0x0f, 0x31, 0x0d, 0x30, 0x0b, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x04, 
				0x54, 0x65, 0x73, 0x74, 0x30, 0x82, 0x01, 0x22, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 
				0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x82, 0x01, 0x0f, 0x00, 0x30, 0x82, 0x01, 0x0a, 
				0x02, 0x82, 0x01, 0x01, 0x00, 0xc5, 0x25, 0xec, 0xac, 0x61, 0xa2, 0x01, 0xdf, 0x2e, 0x27, 0x49, 
				0x67, 0xbb, 0xfd, 0xca, 0x1a, 0x35, 0xbe, 0xc2, 0xf0, 0x39, 0xfb, 0x7b, 0x14, 0x3a, 0x1f, 0x76, 
				0xf4, 0x64, 0x75, 0x7b, 0xb0, 0x3c, 0xdf, 0xeb, 0x0a, 0xa0, 0xb9, 0xe7, 0x1f, 0x76, 0xcb, 0xa2, 
				0x2a, 0xbd, 0x28, 0x5c, 0x96, 0xc6, 0x5d, 0x57, 0x8e, 0xb9, 0x9b, 0x33, 0x11, 0x7f, 0x2d, 0x3a, 
				0x20, 0x9a, 0xa0, 0x45, 0x57, 0xda, 0xec, 0x66, 0x5c, 0x43, 0xf8, 0x69, 0xe6, 0xf7, 0x95, 0xcd, 
				0x4b, 0x36, 0xc3, 0x9e, 0xe7, 0x68, 0xdb, 0xdf, 0xf9, 0x6a, 0x6a, 0xc0, 0x05, 0x89, 0xd0, 0x50, 
				0xe9, 0x1e, 0x53, 0xe1, 0x0d, 0xcb, 0x7f, 0xe4, 0x0f, 0xc2, 0x24, 0xb9, 0x7d, 0x0c, 0xf7, 0xc9, 
				0x9d, 0x6f, 0x4f, 0xcf, 0x46, 0x04, 0x10, 0x58, 0xba, 0xf0, 0xc5, 0xc9, 0x22, 0xba, 0xb6, 0x0b, 
				0xe2, 0xe6, 0xb3, 0x43, 0x38, 0x2b, 0x06, 0xaf, 0x30, 0xae, 0xcf, 0x22, 0x74, 0xec, 0xf9, 0xac, 
				0xc5, 0x92, 0x07, 0x88, 0x58, 0x26, 0x6c, 0x8c, 0x57, 0x65, 0xe7, 0x4c, 0xd6, 0x93, 0x16, 0x87, 
				0x48, 0x6b, 0x2e, 0x37, 0xf5, 0x08, 0xea, 0x44, 0xaf, 0xad, 0x6a, 0xdb, 0x4e, 0xb1, 0x00, 0xf2, 
				0xc1, 0xad, 0x30, 0xa2, 0x7f, 0xaf, 0xb7, 0x41, 0x06, 0xe6, 0x5e, 0x49, 0x3a, 0x04, 0x25, 0x50, 
				0x56, 0xa9, 0x20, 0x82, 0x7a, 0x0d, 0x4f, 0x17, 0x36, 0xf1, 0xe6, 0x2e, 0x7c, 0x67, 0x71, 0x58, 
				0xc6, 0xf4, 0x20, 0xd9, 0x6c, 0x83, 0x90, 0x9b, 0xbf, 0xc5, 0xf7, 0x62, 0xc9, 0x5f, 0x6d, 0xfe, 
				0x56, 0x01, 0xf0, 0x9f, 0x56, 0xf5, 0xd4, 0x20, 0x29, 0x6d, 0x06, 0x93, 0x90, 0xa5, 0xd0, 0xa4, 
				0x4b, 0x41, 0xa7, 0x25, 0xfc, 0x55, 0xa1, 0xad, 0xe6, 0x70, 0xdf, 0x7d, 0x51, 0x08, 0x39, 0x65, 
				0x8b, 0xfb, 0xab, 0xaa, 0x59, 0x02, 0x03, 0x01, 0x00, 0x01, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 
				0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x05, 0x05, 0x00, 0x03, 0x82, 0x01, 0x01, 0x00, 0x94, 0xee, 
				0x5e, 0x05, 0x73, 0x0f, 0xd7, 0x8d, 0xa9, 0x88, 0x10, 0xac, 0xf7, 0x0d, 0x7d, 0x5f, 0x82, 0x91, 
				0xdb, 0x6e, 0x7b, 0x2e, 0xb2, 0x59, 0xcf, 0xfb, 0x83, 0x0a, 0x51, 0x36, 0x5b, 0xcc, 0x47, 0x7e, 
				0xe7, 0xa3, 0xe0, 0x3a, 0xf2, 0x6b, 0x95, 0x2b, 0xd0, 0x0a, 0x62, 0xf9, 0xbb, 0x2a, 0x72, 0xb7, 
				0x83, 0x64, 0x6a, 0x62, 0x7e, 0x02, 0x41, 0xff, 0x33, 0x9d, 0x3e, 0x15, 0xea, 0x63, 0x00, 0x13, 
				0x3e, 0x31, 0x10, 0x8e, 0x0e, 0x5e, 0x65, 0x2f, 0xd9, 0x5f, 0xb0, 0x15, 0x28, 0xaa, 0x9e, 0x74, 
				0xf9, 0x9a, 0x51, 0x74, 0x1d, 0x15, 0x91, 0xab, 0x51, 0x7c, 0x8e, 0x23, 0x9a, 0x92, 0x61, 0xce, 
				0xb4, 0x21, 0xd7, 0x1c, 0x02, 0x6d, 0xea, 0x60, 0xb3, 0x07, 0x4b, 0xd4, 0xd3, 0x9c, 0x30, 0xa2, 
				0xd4, 0x01, 0x64, 0x73, 0x4e, 0x47, 0xc4, 0x3b, 0xcd, 0x7e, 0xe8, 0xee, 0x3d, 0x61, 0x69, 0x34, 
				0xc9, 0xbd, 0x7c, 0x33, 0x49, 0x7e, 0x74, 0x63, 0x3f, 0x09, 0x3e, 0x06, 0x53, 0xd3, 0x73, 0x34, 
				0xf5, 0x37, 0xd6, 0x35, 0x6f, 0x88, 0xa2, 0xf3, 0xd2, 0x25, 0x3b, 0xbd, 0x96, 0xfb, 0x6d, 0x94, 
				0xdf, 0xe0, 0x77, 0x7c, 0x73, 0x4c, 0x85, 0xef, 0x3e, 0x09, 0xae, 0x22, 0x3c, 0xc4, 0x69, 0x43, 
				0x37, 0x93, 0xb4, 0x2f, 0x68, 0xc1, 0xc1, 0x5d, 0xfc, 0xe2, 0xac, 0xdc, 0x65, 0xdf, 0x08, 0x1c, 
				0xc3, 0x56, 0x48, 0x6d, 0x92, 0xc4, 0x30, 0xc5, 0x96, 0x8c, 0x57, 0xae, 0x33, 0x2b, 0x88, 0x94, 
				0x49, 0x3f, 0xd5, 0x6a, 0x29, 0x9a, 0x87, 0x03, 0x98, 0x71, 0x79, 0x3e, 0x27, 0x02, 0xbd, 0x8c, 
				0x88, 0xff, 0xee, 0xe8, 0x10, 0x22, 0xd9, 0x8f, 0x8f, 0x6b, 0x8f, 0xe2, 0xdf, 0x5d, 0x9e, 0xe0, 
				0xcb, 0x6a, 0xa0, 0x20, 0x28, 0xb6, 0x19, 0xa0, 0x13, 0xe4, 0xba, 0x4a, 0x51, 0x39
			]).buffer,
			supportedHashes: ['SHA1', 'SHA256']
		}
	);
				supportedHashes: ['SHA1', 'SHA256']
			}
		);
	}

	chromeCallback(certificates,
		function(rejectedCerts) {
			if (chrome.runtime.lastError) {
				return;
			}

			if (rejectedCerts.length !== 0) {
				onCertificatesRejected(rejectedCerts);
			}

			return;
		}
	);
}

function cackeyMessageIncomingSignMessage(message, chromeCallback) {
	var payload;

	payload = message.signedData;

	chromeCallback(payload);
}

function cackeyMessageIncoming(messageEvent) {
	var nextFunction = null;

	if (messageEvent.data.target != "cackey") {
		return;
	}

	console.log("START MESSAGE");
	console.log(messageEvent.data);
	console.log("END MESSAGE");

	if (messageEvent.data.id != cackeyOutstandingCallbackId || cackeyOutstandingCallback == null) {
		console.log("[cackey] Discarding outdated message");

		return;
	}

	if (messageEvent.data.status != "success") {
		console.error("[cackey] Failed to execute command '" + messageEvent.data.command + "': " + messageEvent.data.error);

		cackeyOutstandingCallback();
	} else {
		switch (messageEvent.data.command) {
			case "listcertificates":
				nextFunction = cackeyMessageIncomingListCertificates;

				break;
			case "sign":
				nextFunction = cackeyMessageIncomingSignMessage;

				break;
		}
	}

	if (nextFunction != null) {
		nextFunction(messageEvent.data, cackeyOutstandingCallback);
	}

	cackeyOutstandingCallback = null;

	return;
}

/*
 * Finish performing initialization that must wait until we have loaded the CACKey module
 */
function cackeyInitLoaded(messageEvent) {
	console.log("[cackey] Loaded CACKey PNaCl Module");

	/* Register listeners with Chrome */
	if (chrome.certificateProvider) {
		chrome.certificateProvider.onCertificatesRequested.addListener(cackeyListCertificates);
		chrome.certificateProvider.onSignDigestRequested.addListener(cackeySignMessage);
	}

	return;
}

function cackeyInit() {
	var elementEmbed;

	/* Log that we are operational */
	console.log("[cackey] cackeyInit(): Called.");

	/* Verify that we can register callbacks */
	if (!chrome.certificateProvider) {
		if (!GoogleSmartCard.IS_DEBUG_BUILD) {
			console.error("[cackey] This extension only works on ChromeOS!");

			return;
		} else {
			console.log("[cackey] This extension only works on ChromeOS, but you appear to be debugging it -- trying anyway.");
		}
	}

	if (cackeyHandle != null) {
		console.log("[cackey] cackeyInit(): Already initialized.  Returning.");

		return;
	}

	elementEmbed = document.createElement('embed');
	elementEmbed.type = "application/x-pnacl";
	elementEmbed.width = 0;
	elementEmbed.height = 0;
	elementEmbed.src = "cackey.nmf";
	elementEmbed.id = "cackeyModule";
	elementEmbed.addEventListener('error', function(messageEvent) { console.error("Error loading CACKey PNaCl Module: " + messageEvent.data); }, true);
	elementEmbed.addEventListener('load', cackeyInitLoaded, true);
	elementEmbed.addEventListener('message', cackeyMessageIncoming, true);

	cackeyHandle = elementEmbed;

	/*
	 * Start the Google PCSC Interface
	 */
	new GoogleSmartCard.PcscNacl(cackeyHandle);

	document.body.appendChild(cackeyHandle)

	console.log("[cackey] cackeyInit(): Completed.  Returning.");
}

function cackeyListCertificates(chromeCallback) {
	var callbackId;

	console.log("[cackey] Asked to provide a list of certificates -- throwing that request over to the NaCl side... ");

	callbackId = cackeyOutstandingCallbackId + 1;

	cackeyHandle.postMessage(
		{
			'target': "cackey",
			'command': "listcertificates",
			'id': callbackId
		}
	);

	cackeyOutstandingCallbackId = callbackId;
	cackeyOutstandingCallback = chromeCallback;

	console.log("[cackey] Thrown.");

	return;
}

function cackeySignMessage(signRequest, chromeCallback) {
	var key, rsaObj;
	var payload;
	var callbackId;

	console.log("[cackey] Asked to sign a message -- throwing that request over to the NaCl side... ");
	key = "-----BEGIN RSA PRIVATE KEY-----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\nk+e8Hm6hN8kedKQpAn2jx0/19hDKsPgx1vjFhgiQGW9nLWujrzbA\n-----END RSA PRIVATE KEY-----\n";

	callbackId = cackeyOutstandingCallbackId + 1;

	rsaObj = new RSAKey();
	rsaObj.readPrivateKeyFromPEMString(key);

	payload = rsaObj.signWithMessageHash(BAtohex(new Uint8Array(signRequest.digest)), signRequest.hash.toLowerCase());

	payload = new Uint8Array(stoBA(hextorstr(payload))).buffer;
	cackeyHandle.postMessage(
		{
			'target': "cackey",
			'command': "sign",
			'id': callbackId,
			'certificate': signRequest.certificate,
			'data': signRequest.digest /* XXX:TODO: This needs to be prefixed based on the signRequest.hash */
		}
	);

	cackeyOutstandingCallbackId = callbackId;
	cackeyOutstandingCallback = chromeCallback;

	console.log("[cackey] Thrown.");
	chromeCallback(payload);


	return;
}

/* Initialize CACKey */
cackeyInit();