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253 lines
11 KiB
253 lines
11 KiB
<!doctype html>
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<head>
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<link rel="stylesheet" href="css/style.verify.css">
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<link rel="shortcut icon" href="https://www.pathcheck.org/hubfs/Favicon.png">
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<title>Certificate Verifier</title>
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</head>
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<body>
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<div class="center">
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<div class="full-div">
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<div id="pre-verify-section">
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<h1>Certificate Verifier</h1>
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<div id="reader" style="margin-top: 10px;margin-bottom: 10px;"></div>
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<h2>Or Paste the Code here:</h2>
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<textarea id="qr-verify" rows="10" style="width:100%;" placeholder="cred:type:version:signature:pubkey:payload"></textarea>
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<br><br>
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<div class="center-in-div">
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<button class="qr-btn" onclick="verifyQRCode()">Verify</button>
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</div>
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</div>
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<br><br>
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<div id="post-verify-section" style="display: none;">
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<div class="card center-in-div">
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<h1 id="qr-verify-title" style="text-align: center;"></h1>
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<canvas style="padding:0px 50px" id="qr"></canvas><br/>
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<h1 id="qr-verify-name" style="text-align: center;"></h1>
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<h2 id="qr-verify-verified" style="text-align: center;"></h2>
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</div>
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</div>
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</div>
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</div>
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<script src="js/qrcode.min.js"></script>
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<script src="js/elliptic.min.js"></script>
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<script src="js/sha256.js"></script>
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<script src="js/asn1.min.js"></script>
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<script src="js/base32.min.js"></script>
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<script src="js/html5-qrcode.min.js"></script>
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<script src="js/pcf.js"></script>
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<script src="js/jszip.min.js"></script>
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<script src="js/divoc.min.js"></script>
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<script>
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function e(elem) { return document.getElementById(elem); }
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var html5QrcodeScanner = new Html5QrcodeScanner("reader", { fps: 10, qrbox: 350 }, /* verbose= */ true);
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const monthNames = [ " ", "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" ];
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function parseDate(str) {
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if(!/^(\d){8}$/.test(str)) return "invalid date";
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var y = str.substr(0,4),
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m = str.substr(4,2),
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d = str.substr(6,2);
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return monthNames[parseInt(m)] + ' ' + d + ', ' + y;
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}
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function parseISODate(str) {
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const d = new Date(str);
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return monthNames[parseInt(d.getMonth()+1)] + ' ' + d.getDate() + ', ' + d.getFullYear();
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}
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function verifyQRCode() {
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let qr = e("qr-verify").value;
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let uri = qr.substring(qr.indexOf("CRED:"));
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if (uri !== "" && uri != null && uri.startsWith("CRED:")) {
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e("pre-verify-section").style.display = 'none';
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e("post-verify-section").style.display = '';
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const [schema, type, version, signatureBase32NoPad, pubKeyLink, payload] = PCF.parseURI(uri);
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const result = PCF.downloadKeyVerify(pubKeyLink, payload, signatureBase32NoPad);
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const fields = PCF.getPayloadFields(payload);
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let params = {margin:0, width:700, errorCorrectionLevel: 'M', color: {dark: '#3654DD' }};
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QRCode.toCanvas(e('qr'), uri, params, function (error) {
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if (result) {
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const imgDim={width:150,height:150}; //logo dimention
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var context = e('qr').getContext('2d');
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var imageObj = new Image();
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imageObj.src = './img/ok-256.png';
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imageObj.onload = function() {
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context.drawImage(imageObj,
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e('qr').width / 2 - imgDim.width / 2 +1,
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e('qr').height / 2 - imgDim.height / 2,imgDim.width,imgDim.height);
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};
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}
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});
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if (result == null) {
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e('qr-verify-verified').innerHTML = "Unable to Verify";
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} else if (result) {
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e('qr-verify-verified').innerHTML = 'Signed by ' + pubKeyLink + ' on ' + parseDate(fields['date'] ? fields['date'] : fields['issuanceDate']);
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} else {
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e('qr-verify-verified').innerHTML = "Credential Invalid";
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}
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if (type == 'BADGE') {
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e('qr-verify-title').innerHTML = "COVID-19 Vaccine Record"
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e('qr-verify-name').innerHTML = fields['name'] + "<br>";
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e('qr-verify-name').innerHTML += parseDate(fields['dob']) + "<br>";
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}
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if (type == 'STATUS') {
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e('qr-verify-title').innerHTML = "COVID-19 Pass"
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e('qr-verify-name').innerHTML = "Status: " + (fields['status'] === '2' ? "Vaccinated" : "Not Vaccinated") + "<br />";
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e('qr-verify-name').innerHTML += "Initials: " + fields['initials'] + "<br>";
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}
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if (type == 'PASSKEY') {
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e('qr-verify-name').innerHTML = "PassKey for: " + fields['name'] + "<br>";
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e('qr-verify-name').innerHTML += "DoB: " + parseDate(fields['dob']);
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}
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if (type == 'LIBERTY') {
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e('qr-verify-title').innerHTML = "COVID-19 Pass"
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e('qr-verify-name').innerHTML = fields['credentialSubject.subject.name.given'] + " " + fields['credentialSubject.subject.name.family'] + "<br>";
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e('qr-verify-name').innerHTML += fields['credentialSubject.subject.birthDate'];
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}
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if (type == 'COWIN') {
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e('qr-verify-title').innerHTML = "COVID-19 Vaccine Record"
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e('qr-verify-name').innerHTML = fields['credentialSubject.name'] + "<br>";
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e('qr-verify-name').innerHTML += fields['credentialSubject.age'] + "yrs old";
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}
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} else if (uri !== "" && uri != null && (uri.startsWith("{") || uri.startsWith("PK"))) {
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if (uri.startsWith("PK")) {
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unZipVerifyDisplayDIVOC(uri);
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} else {
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// Make sure it's not encoded.
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let json = '';
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if (uri.includes("%22")) {
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json = JSON.parse(decodeURIComponent(uri))
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} else {
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json = JSON.parse(uri);
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}
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verifyDisplayDIVOC(json);
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}
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} else {
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e('qr-verify-verified').innerHTML = "Certificate not found. ";
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}
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}
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function unZipVerifyDisplayDIVOC(data) {
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var zip = new JSZip();
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zip.loadAsync(data).then((contents) => {
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console.log(contents);
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return contents.files["certificate.json"].async('text')
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}).then(function (contents) {
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console.log(contents);
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verifyDisplayDIVOC(JSON.parse(contents));
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}).catch(err => {
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console.log(err);
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}
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);
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}
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function verifyDisplayDIVOC(json) {
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DIVOC.verify(json).then(result => {
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let params = {margin:0, width:700, errorCorrectionLevel: 'L', color: {dark: '#3654DD' }};
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var zip = new JSZip();
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zip.file("certificate.json", JSON.stringify(json), {
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compression: "DEFLATE",
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compressionOptions: {
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level: 9
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}
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});
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zip.generateAsync({type: "binarystring"}).then(function (bin) {
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QRCode.toCanvas(e('qr'), bin, params, function (error) {
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if (result) {
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const imgDim={width:150,height:150}; //logo dimention
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var context = e('qr').getContext('2d');
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var imageObj = new Image();
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imageObj.src = './img/ok-256.png';
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imageObj.onload = function() {
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context.drawImage(imageObj,
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e('qr').width / 2 - imgDim.width / 2 +1,
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e('qr').height / 2 - imgDim.height / 2,imgDim.width,imgDim.height);
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};
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}
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});
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});
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if (result == null) {
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e('qr-verify-verified').innerHTML = "Unable to Verify";
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} else if (result) {
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e('qr-verify-verified').innerHTML = 'Signed by ' + json.evidence[0].facility.name + ' on ' + parseISODate(json.issuanceDate);
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} else {
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e('qr-verify-verified').innerHTML = "Credential Invalid";
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}
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e('qr-verify-title').innerHTML = "COVID-19 Vaccine Record"
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e('qr-verify-name').innerHTML = json.credentialSubject.name + "<br>";
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e('qr-verify-name').innerHTML += json.credentialSubject.age + "yrs old";
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e("pre-verify-section").style.display = 'none';
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e("post-verify-section").style.display = '';
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});
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}
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function onScanSuccess(qrMessage) {
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html5QrcodeScanner.clear();
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if (qrMessage !== "" && qrMessage != null) {
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let uri = qrMessage.substring(qrMessage.indexOf("CRED:"));
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e("qr-verify").value = uri;
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verifyQRCode();
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}
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}
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function onScanFailure(error) {
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console.warn(`QR error = ${error}`);
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}
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function getQueryVariable(variable) {
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var query = window.location.search.substring(1);
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var vars = query.split('&');
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for (var i = 0; i < vars.length; i++) {
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var pair = vars[i].split('=');
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if (pair[0] == variable) {
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return pair[1];
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}
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}
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console.log('Query variable %s not found', variable);
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}
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</script>
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<script>
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// Starting Scanner
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html5QrcodeScanner.render(onScanSuccess, onScanFailure);
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// Loading URI from qr parameter.
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const queryString = window.location.search;
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const qr = getQueryVariable("qr")
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if (qr !== "" && qr != null) {
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uri = qr.substring(qr.indexOf("CRED:"));
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console.log(uri);
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e("qr-verify").value = uri;
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verifyQRCode();
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}
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</script>
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</body>
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</html>
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