mirror of
https://github.com/Ylianst/MeshCentral.git
synced 2024-12-24 06:05:53 -05:00
MCREC Player and Indexer now support indexes at the end of the file.
This commit is contained in:
Ylian Saint-Hilaire
parent
0d4754fba2
commit
4ce64c06e9
71
mcrec.js
71
mcrec.js
@ -35,15 +35,17 @@ function startEx(argv) {
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state.recFileSize = fs.statSync(infile).size;
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if (state.recFileSize < 32) { log("Invalid file: " + infile); return; }
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log("Processing file: " + infile + ", " + state.recFileSize + " bytes.");
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state.recFile = fs.openSync(infile, 'r');
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state.recFile = fs.openSync(infile, 'r+');
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state.indexTime = 10; // Interval between indexes in seconds
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state.lastIndex = 0; // Last time an index was writen in seconds
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state.indexes = [];
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state.width = 0;
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state.height = 0;
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state.basePtr = null;
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readLastBlock(state, function (state, result) {
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readLastBlock(state, function (state, result, time, extras) {
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if (result == false) { log("Invalid file: " + infile); return; }
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if (extras != null) { log("File already indexed: " + infile); return; }
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state.lastTimeStamp = time;
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readNextBlock(state, processBlock);
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});
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}
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@ -62,7 +64,7 @@ function createIndex(state, ptr) {
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}
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function processBlock(state, block) {
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if (block == null) { writeIndexedFile(state, function () { log("Done."); }); return; }
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if (block == null) { writeIndex(state, function () { log("Done."); }); return; }
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var elapseMilliSeconds = 0;
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if (state.startTime != null) { elapseMilliSeconds = (block.time - state.startTime); }
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var flagBinary = (block.flags & 1) != 0;
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@ -164,29 +166,21 @@ function processBlock(state, block) {
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readNextBlock(state, processBlock);
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}
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function writeIndexedFile(state, func) {
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var outfile = state.recFileName;
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if (outfile.endsWith('.mcrec')) { outfile = outfile.substring(0, outfile.length - 6) + '-ndx.mcrec'; } else { outfile += '-ndx.mcrec'; }
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if (fs.existsSync(outfile)) { log("File already exists: " + outfile); return; }
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log("Writing file: " + outfile);
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state.writeFile = fs.openSync(outfile, 'w');
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state.metadata.indexInterval = state.indexTime;
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state.metadata.indexStartTime = state.startTime;
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state.metadata.indexes = state.indexes;
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var firstBlock = JSON.stringify(state.metadata);
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recordingEntry(state.writeFile, 1, state.metadataFlags, state.metadataTime, firstBlock, function (state) {
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var len = 0, buffer = Buffer.alloc(4096), ptr = state.dataStartPtr;
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while (ptr < state.recFileSize) {
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len = fs.readSync(state.recFile, buffer, 0, 4096, ptr);
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fs.writeSync(state.writeFile, buffer, 0, len);
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ptr += len;
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}
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func(state);
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}, state);
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function writeIndex(state, func) {
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// Add the new indexes in extra metadata at the end of the file.
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var extraMetadata = {};
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extraMetadata.indexInterval = state.indexTime;
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extraMetadata.indexStartTime = state.startTime;
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extraMetadata.indexes = state.indexes;
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recordingEntry(state.recFile, 4, 0, state.lastTimeStamp, JSON.stringify(extraMetadata), function (state) {
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recordingEntry(state.recFile, 3, 0, state.recFileSize - 32, 'MeshCentralMCNDX', function (state) {
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func(state);
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}, state);
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}, state, state.recFileSize - 32);
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}
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// Record a new entry in a recording log
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function recordingEntry(fd, type, flags, time, data, func, tag) {
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function recordingEntry(fd, type, flags, time, data, func, tag, position) {
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try {
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if (typeof data == 'string') {
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// String write
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@ -196,7 +190,11 @@ function recordingEntry(fd, type, flags, time, data, func, tag) {
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header.writeInt32BE(blockData.length, 4); // Size
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header.writeIntBE(time, 10, 6); // Time
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var block = Buffer.concat([header, blockData]);
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fs.write(fd, block, 0, block.length, function () { func(tag); });
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if (typeof position == 'number') {
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fs.write(fd, block, 0, block.length, position, function () { func(tag); });
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} else {
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fs.write(fd, block, 0, block.length, function () { func(tag); });
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}
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} else {
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// Binary write
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var header = Buffer.alloc(16); // Header: Type (2) + Flags (2) + Size(4) + Time(8)
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@ -205,7 +203,11 @@ function recordingEntry(fd, type, flags, time, data, func, tag) {
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header.writeInt32BE(data.length, 4); // Size
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header.writeIntBE(time, 10, 6); // Time
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var block = Buffer.concat([header, data]);
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fs.write(fd, block, 0, block.length, function () { func(tag); });
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if (typeof position == 'number') {
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fs.write(fd, block, 0, block.length, position, function () { func(tag); });
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} else {
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fs.write(fd, block, 0, block.length, function () { func(tag); });
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}
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}
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} catch (ex) { console.log(ex); func(state, tag); }
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}
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@ -218,7 +220,24 @@ function readLastBlock(state, func) {
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var size = buf.readInt32BE(4);
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var time = (buf.readInt32BE(8) << 32) + buf.readInt32BE(12);
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var magic = buf.toString('utf8', 16, 32);
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func(state, (type == 3) && (size == 16) && (magic == 'MeshCentralMCREC'));
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if ((type == 3) && (size == 16) && (magic == 'MeshCentralMCNDX')) {
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// Extra metadata present, lets read it.
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extraMetadata = null;
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var buf2 = Buffer.alloc(16);
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fs.read(state.recFile, buf2, 0, 16, time, function (err, bytesRead, buf2) {
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var xtype = buf2.readInt16BE(0);
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var xflags = buf2.readInt16BE(2);
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var xsize = buf2.readInt32BE(4);
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var xtime = (buf2.readInt32BE(8) << 32) + buf.readInt32BE(12);
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var buf3 = Buffer.alloc(xsize);
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fs.read(state.recFile, buf3, 0, xsize, time + 16, function (err, bytesRead, buf3) {
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func(state, true, xtime, JSON.parse(buf3.toString()));
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});
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});
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} else {
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// No extra metadata or fail
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func(state, (type == 3) && (size == 16) && (magic == 'MeshCentralMCREC'), time, null);
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}
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});
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}
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@ -10978,6 +10978,7 @@
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//
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// Converts string to UTF8 byte array, polyfill for IE.
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// Following method is code from Mozilla: https://developer.mozilla.org/en-US/docs/Web/API/TextEncoder
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if (typeof TextEncoder === 'undefined') {
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window.TextEncoder=function TextEncoder(){};
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TextEncoder.prototype.encode = function encode(str) {
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@ -28,9 +28,6 @@
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<span id="deskstatus"></span>
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</div>
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</div>
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<div id=deskarea2 style="">
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<div class="areaProgress" style="cursor:pointer" onclick="progressBarSeek(event)"><div id="progressbar" style="height:6px;cursor:pointer"></div></div>
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</div>
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<div id=deskarea3x style="max-height:calc(100vh - 58px);height:calc(100vh - 58px);" onclick="togglePause()">
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<div id="bigok" style="display:none;left:calc((100vh / 2))"><b>✓</b></div>
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<div id="bigfail" style="display:none;left:calc((100vh / 2))"><b>✗</b></div>
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@ -43,6 +40,9 @@
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</div>
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<div id=p11DeskConsoleMsg style="display:none;cursor:pointer;position:absolute;left:30px;top:17px;color:yellow;background-color:rgba(0,0,0,0.6);padding:10px;border-radius:5px" onclick=clearConsoleMsg()></div>
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</div>
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<div id=deskarea2 style="">
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<div class="areaProgress" style="cursor:pointer" onclick="progressBarSeek(event)"><div id="progressbar" style="height:6px;cursor:pointer"></div></div>
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</div>
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<div id=deskarea4 class="areaFoot">
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<div class="toright2">
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<div id="timespan" style="padding-top:4px;padding-right:4px">00:00:00</div>
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@ -165,7 +165,24 @@
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var flags = ReadShort(this.result, 2);
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var size = ReadInt(this.result, 4);
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var time = (ReadInt(this.result, 8) << 32) + ReadInt(this.result, 12);
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if ((type == 3) && (size == 16) && (this.result.substring(16, 32) == 'MeshCentralMCREC')) { func(type, flags, time); } else { func(-1); }
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var magic = this.result.substring(16, 32);
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if ((type == 3) && (size == 16) && (magic == 'MeshCentralMCNDX')) {
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// Extra metadata present, lets read it.
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var fr2 = new FileReader();
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fr2.onload = function () {
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var xtype = ReadShort(this.result, 0);
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var xflags = ReadShort(this.result, 2);
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var xsize = ReadInt(this.result, 4);
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var xtime = (ReadInt(this.result, 8) << 32) + ReadInt(this.result, 12);
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var extras = JSON.parse(this.result.substring(16));
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func(type, flags, xtime, extras); // Include extra metadata
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}
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fr2.readAsBinaryString(recFile.slice(time, recFile.size - 32));
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} else if ((type == 3) && (size == 16) && (magic == 'MeshCentralMCREC')) {
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func(type, flags, time); // No extra metadata
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} else {
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func(-1); // Fail
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}
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};
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fr.readAsBinaryString(recFile.slice(recFile.size - 32, recFile.size));
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}
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@ -183,6 +200,7 @@
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if ((type != 1) || (flags != 0)) { cleanup(); return; }
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try { recFileMetadata = JSON.parse(data) } catch (ex) { cleanup(); return; }
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if ((recFileMetadata == null) || (recFileMetadata.magic != 'MeshCentralRelaySession') || (recFileMetadata.ver != 1)) { cleanup(); return; }
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if (recFileExtras) { for (var i in recFileExtras) { recFileMetadata[i] = recFileExtras[i]; } }
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var x = '';
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x += addInfo("Time", recFileMetadata.time);
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if (recFileEndTime != 0) { var secs = Math.floor((recFileEndTime - time) / 1000); x += addInfo("Duration", format("{0} second{1}", secs, (secs > 1) ? 's' : '')); }
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@ -355,8 +373,17 @@
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cleanup();
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recFile = files[0];
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recFilePtr = 0;
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readNextBlock(processFirstBlock);
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readLastBlock(function (type, flags, time) { if (type == 3) { recFileEndTime = time; } else { recFileEndTime = 0; } });
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readLastBlock(function (type, flags, time, extras) {
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if (type == 3) {
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// File is ok
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recFileEndTime = time;
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recFileExtras = extras;
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readNextBlock(processFirstBlock);
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} else {
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// This is not a good file
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recFileEndTime = 0;
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}
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});
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}
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var dragtimer = null;
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@ -399,7 +426,17 @@
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recFile = files[0];
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recFilePtr = 0;
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readNextBlock(processFirstBlock);
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readLastBlock(function (type, flags, time) { if (type == 3) { recFileEndTime = time; } else { recFileEndTime = 0; } });
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readLastBlock(function (type, flags, time) {
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if (type == 3) {
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// File is ok
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recFileEndTime = time;
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recFileExtras = extras;
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readNextBlock(processFirstBlock);
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} else {
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// This is not a good file
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recFileEndTime = 0;
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}
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});
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Q('OpenFileButton').blur();
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}
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