Begin adding support for browser
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8e73504214
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a56ea40640
@ -274,19 +274,30 @@ function calculateSHA256HashOfString(str) {
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}
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function openPublicKeyFile() {
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openFileDialog(function (path) {
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var keyfile = getFileAsString(path);
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openFileDialog(function (path, html5file) {
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var importpk = function (keyfile) {
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kbpgp.KeyManager.import_from_armored_pgp({
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armored: keyfile
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}, function (err, pubkeymgr) {
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if (!err) {
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keyring.add_key_manager(pubkeymgr);
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alert("Public key file loaded. You can now analyze PDFs signed by the key's owner.");
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} else {
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alert("Error loading public key: " + err);
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}
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});
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};
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kbpgp.KeyManager.import_from_armored_pgp({
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armored: keyfile
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}, function (err, pubkeymgr) {
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if (!err) {
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keyring.add_key_manager(pubkeymgr);
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alert("Public key file loaded. You can now analyze PDFs signed by the key's owner.");
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} else {
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alert("Error loading public key: " + err);
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if (typeof nw != 'undefined') {
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var keyfile = getFileAsString(path);
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importpk(keyfile);
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} else {
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var fileReader = new FileReader();
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fileReader.onload = function (e) {
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importpk(e.target.result);
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}
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});
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fileReader.readAsText(html5file);
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}
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}, ".asc");
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}
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@ -27,7 +27,7 @@ function openFileDialog(callback, accept) {
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dialog.setAttribute("accept", accept);
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}
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dialog.onchange = function () {
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callback(dialog.value);
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callback(dialog.value, this.files[0]);
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}
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dialog.dispatchEvent(new MouseEvent("click", {
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"view": window,
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154
src/js/pdf.js
154
src/js/pdf.js
@ -56,42 +56,84 @@ function analyzeSignedPDF() {
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return;
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}
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closePDF(false);
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openFileDialog(function (path) {
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var pdf = Buffer.from(getFileAsUint8Array(path).buffer);
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openFileDialog(function (path, html5file) {
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var analyze = function (pdf) {
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var splitindex = pdf.indexOf("-----BEGIN PGP MESSAGE-----");
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if (splitindex == -1) {
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alert("Selected file does not contain any recognized signature data.");
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return;
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}
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var pdfdata = pdf.slice(0, splitindex);
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var sigdata = pdf.slice(splitindex).toString();
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var splitindex = pdf.indexOf("-----BEGIN PGP MESSAGE-----");
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if (splitindex == -1) {
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alert("Selected file does not contain any recognized signature data.");
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return;
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}
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var pdfdata = pdf.slice(0, splitindex);
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var sigdata = pdf.slice(splitindex).toString();
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var verify = function (pdfhash) {
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loadKeyFromLocalStorage(function () {
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verifyMessage(sigdata, function (msg, fprint) {
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parseAndDisplaySignature(msg, pdfhash, true, fprint);
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}, function (err) {
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console.error(err);
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console.log(sigdata);
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var base64 = sigdata.split("\n\n", 2)[1].split("\n-----END PGP MESSAGE-----")[0];
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base64 = base64.substring(0, base64.lastIndexOf("\n")).replaceAll("\n", "");
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try {
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var msg = window.atob(base64).split("START", 2)[1].split("END", 2)[0];
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parseAndDisplaySignature(msg, pdfhash, false, null);
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} catch (ex) {
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console.error(ex);
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alert("Error: could not parse signature data.");
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}
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});
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});
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var pdfhash = calculateSHA256HashOfString(pdfdata);
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if (typeof nw != 'undefined') {
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pdfjsLib.getDocument(pdf).promise.then(function (pdfDoc_) {
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pdfDoc = pdfDoc_;
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loadKeyFromLocalStorage(function () {
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verifyMessage(sigdata, function (msg, fprint) {
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parseAndDisplaySignature(msg, pdfhash, true, fprint);
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}, function (err) {
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console.error(err);
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var base64 = sigdata.split("\n\n", 2)[1].split("\n-----END PGP MESSAGE-----")[0];
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base64 = base64.substring(0, base64.lastIndexOf("\n")).replaceAll("\n", "");
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try {
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var msg = window.atob(base64).split("START", 2)[1].split("END", 2)[0];
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parseAndDisplaySignature(msg, pdfhash, false, null);
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} catch (ex) {
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console.error(ex);
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alert("Error: could not parse signature data.");
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renderAllPages(pdfDoc);
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pdfZoom("fitheight");
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});
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} else {
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var fileReader = new FileReader();
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fileReader.onload = function () {
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pdfjsLib.getDocument(new Uint8Array(this.result)).promise.then(function (pdfDoc_) {
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pdfDoc = pdfDoc_;
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renderAllPages(pdfDoc);
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pdfZoom("fitheight");
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});
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};
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fileReader.readAsArrayBuffer(html5file);
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}
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});
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});
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};
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pdfjsLib.getDocument(pdf).promise.then(function (pdfDoc_) {
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pdfDoc = pdfDoc_;
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renderAllPages(pdfDoc);
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pdfZoom("fitheight");
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});
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if (typeof nw != 'undefined') {
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verify(calculateSHA256HashOfString(pdfdata));
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} else {
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window.crypto.subtle.digest("SHA-256", (new TextEncoder()).encode(pdfdata))
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.then(hash => {
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window.hash = hash;
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// here hash is an arrayBuffer,
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// so we'll connvert it to its hex version
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let result = '';
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const view = new DataView(hash);
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for (let i = 0; i < hash.byteLength; i += 4) {
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result += ('00000000' + view.getUint32(i).toString(16)).slice(-8);
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}
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verify(result);
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});
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}
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};
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if (typeof nw != 'undefined') {
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// running in NW.js so we have Node
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analyze(Buffer.from(getFileAsUint8Array(path).buffer));
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} else {
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// no Node :(
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var fileReader = new FileReader();
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fileReader.onload = function (e) {
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analyze(e.target.result);
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}
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fileReader.readAsBinaryString(html5file);
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}
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}, ".pdf");
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}
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@ -143,25 +185,33 @@ then run the analyze tool again to prove if it was changed since notarization.")
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$("#verifyModalDetailedInfoList").append('<li class="list-group-item"><i class="fas fa-map-marked-alt fa-fw"></i> State: ' + sanitizeHTMLString(msgparts["STATE"]).toUpperCase() + '</li>');
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}
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if (typeof msgparts["OTS"] == "string") {
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var bytearray = [];
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var bytestrarray = msgparts["OTS"].match(/.{1,3}/g);
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for (var i = 0; i < bytestrarray.length; i++) {
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bytearray.push(bytestrarray[i] * 1);
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}
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const detached = OpenTimestamps.DetachedTimestampFile.fromHash(new OpenTimestamps.Ops.OpSHA256(), Uint8Array.from(Buffer.from(pdfhash, 'hex')));
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const detachedOts = OpenTimestamps.DetachedTimestampFile.deserialize(bytearray);
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let options = {};
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OpenTimestamps.verify(detachedOts, detached, options).then(verifyResult => {
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console.log(verifyResult);
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if (typeof verifyResult != "undefined") {
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if (typeof verifyResult.bitcoin != undefined) {
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$("#verifyModalDetailedInfoList").append('<li class="list-group-item"><i class="fas fa-clock fa-fw"></i> Signing time independently verified on the Bitcoin blockchain. Signed at ' + formatTimestamp("F j, Y g:i a", verifyResult.bitcoin.timestamp) + '</li>');
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}
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if (typeof verifyResult.litecoin != undefined) {
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$("#verifyModalDetailedInfoList").append('<li class="list-group-item"><i class="fas fa-clock fa-fw"></i> Signing time independently verified on the Litecoin blockchain. Signed at ' + formatTimestamp("F j, Y g:i a", verifyResult.bitcoin.timestamp) + '</li>');
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}
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try {
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var bytearray = [];
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var bytestrarray = msgparts["OTS"].match(/.{1,3}/g);
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for (var i = 0; i < bytestrarray.length; i++) {
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bytearray.push(bytestrarray[i] * 1);
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}
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});
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const detached = OpenTimestamps.DetachedTimestampFile.fromHash(new OpenTimestamps.Ops.OpSHA256(), Uint8Array.from(Buffer.from(pdfhash, 'hex')));
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const detachedOts = OpenTimestamps.DetachedTimestampFile.deserialize(bytearray);
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console.log(OpenTimestamps.info(detachedOts));
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let options = {
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ignoreBitcoinNode: true,
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timeout: 5000
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};
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OpenTimestamps.verify(detachedOts, detached, options).then(verifyResult => {
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console.log(verifyResult);
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if (typeof verifyResult != "undefined") {
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if (typeof verifyResult.bitcoin != undefined) {
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$("#verifyModalDetailedInfoList").append('<li class="list-group-item"><i class="fas fa-clock fa-fw"></i> Signing time independently verified on the Bitcoin blockchain. Signed at ' + formatTimestamp("F j, Y g:i a", verifyResult.bitcoin.timestamp) + '</li>');
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}
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if (typeof verifyResult.litecoin != undefined) {
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$("#verifyModalDetailedInfoList").append('<li class="list-group-item"><i class="fas fa-clock fa-fw"></i> Signing time independently verified on the Litecoin blockchain. Signed at ' + formatTimestamp("F j, Y g:i a", verifyResult.bitcoin.timestamp) + '</li>');
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}
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}
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});
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} catch (ex) {
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console.error(ex);
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}
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}
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$("#verifyModalDetailedInfoList").append('<li class="list-group-item"><i class="far fa-file fa-fw"></i> Actual file hash: ' + pdfhash + '</li>');
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@ -287,6 +337,12 @@ function savePDF() {
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function pdfZoom(str) {
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disableGuideBox();
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if ($("#page-canvas-container .page-canvas").length == 0) {
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setTimeout(function () {
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pdfZoom(str);
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}, 100);
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return;
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}
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var widthpx = $("#page-canvas-container .page-canvas").css("width").replace("px", "") * 1;
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var zoomstep = 100;
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console.log(widthpx);
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