SecureBitChat/securebit-chat
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securebit-chat/node_modules/pngjs/coverage/lcov-report/png.js.html
lockbitchat 0f8399ec88 feat(security,ui): self-host React deps, Tailwind, fonts; strict CSP; local QR; better selection state 
Replace CDN React/ReactDOM/Babel with local libs; remove Babel and inline scripts
Build Tailwind locally, add safelist; switch to assets/tailwind.css
Self-host Font Awesome and Inter (CSS + woff2); remove external font CDNs
Implement strict CSP (no unsafe-inline/eval; scripts/styles/fonts from self)
Extract inline handlers; move PWA scripts to external files
Add local QR code generation (qrcode lib) and remove api.qrserver.com
Improve SessionTypeSelector visual selection (highlighted background and ring)
Keep PWA working with service worker and offline assets
Refs: CSP hardening, offline-first, no external dependencies
2025-09-08 16:04:58 -04:00

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<!doctype html>
<html lang="en">
<head>
<title>Code coverage report for png.js</title>
<meta charset="utf-8" />
<link rel="stylesheet" href="prettify.css" />
<link rel="stylesheet" href="base.css" />
<link rel="shortcut icon" type="image/x-icon" href="favicon.png" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<style type='text/css'>
.coverage-summary .sorter {
background-image: url(sort-arrow-sprite.png);
}
</style>
</head>
<body>
<div class='wrapper'>
<div class='pad1'>
<h1><a href="index.html">All files</a> png.js</h1>
<div class='clearfix'>
<div class='fl pad1y space-right2'>
<span class="strong">54.17% </span>
<span class="quiet">Statements</span>
<span class='fraction'>52/96</span>
</div>
<div class='fl pad1y space-right2'>
<span class="strong">41.18% </span>
<span class="quiet">Branches</span>
<span class='fraction'>14/34</span>
</div>
<div class='fl pad1y space-right2'>
<span class="strong">56.25% </span>
<span class="quiet">Functions</span>
<span class='fraction'>9/16</span>
</div>
<div class='fl pad1y space-right2'>
<span class="strong">56.52% </span>
<span class="quiet">Lines</span>
<span class='fraction'>52/92</span>
</div>
</div>
<p class="quiet">
Press <em>n</em> or <em>j</em> to go to the next uncovered block, <em>b</em>, <em>p</em> or <em>k</em> for the previous block.
</p>
</div>
<div class='status-line medium'></div>
<pre><table class="coverage">
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<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">"use strict";
&nbsp;
let util = require("util");
let Stream = require("stream");
let Parser = require("./parser-async");
let Packer = require("./packer-async");
let PNGSync = require("./png-sync");
&nbsp;
let PNG = (exports.PNG = function (options) {
Stream.call(this);
&nbsp;
options = options || {}; // eslint-disable-line no-param-reassign
&nbsp;
// coerce pixel dimensions to integers (also coerces undefined -&gt; 0):
this.width = options.width | 0;
this.height = options.height | 0;
&nbsp;
this.data =
this.width &gt; 0 &amp;&amp; this.height &gt; 0
? Buffer.alloc(4 * this.width * this.height)
: null;
&nbsp;
<span class="missing-if-branch" title="if path not taken" >I</span>if (options.fill &amp;&amp; <span class="branch-1 cbranch-no" title="branch not covered" >this.data)</span> {
<span class="cstat-no" title="statement not covered" > this.data.fill(0);</span>
}
&nbsp;
this.gamma = 0;
this.readable = this.writable = true;
&nbsp;
this._parser = new Parser(options);
&nbsp;
this._parser.on("error", this.emit.bind(this, "error"));
this._parser.on("close", this._handleClose.bind(this));
this._parser.on("metadata", this._metadata.bind(this));
this._parser.on("gamma", this._gamma.bind(this));
this._parser.on(
"parsed",
function (data) {
this.data = data;
this.emit("parsed", data);
}.bind(this)
);
&nbsp;
this._packer = new Packer(options);
this._packer.on("data", this.emit.bind(this, "data"));
this._packer.on("end", this.emit.bind(this, "end"));
this._parser.on("close", this._handleClose.bind(this));
this._packer.on("error", this.emit.bind(this, "error"));
});
util.inherits(PNG, Stream);
&nbsp;
PNG.sync = PNGSync;
&nbsp;
PNG.prototype.pack = function () {
<span class="missing-if-branch" title="if path not taken" >I</span>if (!this.data || !this.data.length) {
<span class="cstat-no" title="statement not covered" > this.emit("error", "No data provided");</span>
<span class="cstat-no" title="statement not covered" > return this;</span>
}
&nbsp;
process.nextTick(
function () {
this._packer.pack(this.data, this.width, this.height, this.gamma);
}.bind(this)
);
&nbsp;
return this;
};
&nbsp;
PNG.prototype.parse = <span class="fstat-no" title="function not covered" >fu</span>nction (data, callback) {
<span class="cstat-no" title="statement not covered" > if (callback) {</span>
let onParsed, onError;
&nbsp;
<span class="cstat-no" title="statement not covered" > onParsed = <span class="fstat-no" title="function not covered" >fu</span>nction (parsedData) {</span>
<span class="cstat-no" title="statement not covered" > this.removeListener("error", onError);</span>
&nbsp;
<span class="cstat-no" title="statement not covered" > this.data = parsedData;</span>
<span class="cstat-no" title="statement not covered" > callback(null, this);</span>
}.bind(this);
&nbsp;
<span class="cstat-no" title="statement not covered" > onError = <span class="fstat-no" title="function not covered" >fu</span>nction (err) {</span>
<span class="cstat-no" title="statement not covered" > this.removeListener("parsed", onParsed);</span>
&nbsp;
<span class="cstat-no" title="statement not covered" > callback(err, null);</span>
}.bind(this);
&nbsp;
<span class="cstat-no" title="statement not covered" > this.once("parsed", onParsed);</span>
<span class="cstat-no" title="statement not covered" > this.once("error", onError);</span>
}
&nbsp;
<span class="cstat-no" title="statement not covered" > this.end(data);</span>
<span class="cstat-no" title="statement not covered" > return this;</span>
};
&nbsp;
PNG.prototype.write = function (data) {
this._parser.write(data);
return true;
};
&nbsp;
PNG.prototype.end = function (data) {
this._parser.end(data);
};
&nbsp;
PNG.prototype._metadata = function (metadata) {
this.width = metadata.width;
this.height = metadata.height;
&nbsp;
this.emit("metadata", metadata);
};
&nbsp;
PNG.prototype._gamma = function (gamma) {
this.gamma = gamma;
};
&nbsp;
PNG.prototype._handleClose = function () {
<span class="missing-if-branch" title="if path not taken" >I</span>if (!this._parser.writable &amp;&amp; !this._packer.readable) {
<span class="cstat-no" title="statement not covered" > this.emit("close");</span>
}
};
&nbsp;
PNG.bitblt = <span class="fstat-no" title="function not covered" >fu</span>nction (src, dst, srcX, srcY, width, height, deltaX, deltaY) {
// eslint-disable-line max-params
// coerce pixel dimensions to integers (also coerces undefined -&gt; 0):
/* eslint-disable no-param-reassign */
<span class="cstat-no" title="statement not covered" > srcX |= 0;</span>
<span class="cstat-no" title="statement not covered" > srcY |= 0;</span>
<span class="cstat-no" title="statement not covered" > width |= 0;</span>
<span class="cstat-no" title="statement not covered" > height |= 0;</span>
<span class="cstat-no" title="statement not covered" > deltaX |= 0;</span>
<span class="cstat-no" title="statement not covered" > deltaY |= 0;</span>
/* eslint-enable no-param-reassign */
&nbsp;
<span class="cstat-no" title="statement not covered" > if (</span>
srcX &gt; src.width ||
srcY &gt; src.height ||
srcX + width &gt; src.width ||
srcY + height &gt; src.height
) {
<span class="cstat-no" title="statement not covered" > throw new Error("bitblt reading outside image");</span>
}
&nbsp;
<span class="cstat-no" title="statement not covered" > if (</span>
deltaX &gt; dst.width ||
deltaY &gt; dst.height ||
deltaX + width &gt; dst.width ||
deltaY + height &gt; dst.height
) {
<span class="cstat-no" title="statement not covered" > throw new Error("bitblt writing outside image");</span>
}
&nbsp;
<span class="cstat-no" title="statement not covered" > for (let y = <span class="cstat-no" title="statement not covered" >0;</span> y &lt; height; y++) {</span>
<span class="cstat-no" title="statement not covered" > src.data.copy(</span>
dst.data,
((deltaY + y) * dst.width + deltaX) &lt;&lt; 2,
((srcY + y) * src.width + srcX) &lt;&lt; 2,
((srcY + y) * src.width + srcX + width) &lt;&lt; 2
);
}
};
&nbsp;
PNG.prototype.bitblt = <span class="fstat-no" title="function not covered" >fu</span>nction (
dst,
srcX,
srcY,
width,
height,
deltaX,
deltaY
) {
// eslint-disable-line max-params
&nbsp;
<span class="cstat-no" title="statement not covered" > PNG.bitblt(this, dst, srcX, srcY, width, height, deltaX, deltaY);</span>
<span class="cstat-no" title="statement not covered" > return this;</span>
};
&nbsp;
PNG.adjustGamma = <span class="fstat-no" title="function not covered" >fu</span>nction (src) {
<span class="cstat-no" title="statement not covered" > if (src.gamma) {</span>
<span class="cstat-no" title="statement not covered" > for (let y = <span class="cstat-no" title="statement not covered" >0;</span> y &lt; src.height; y++) {</span>
<span class="cstat-no" title="statement not covered" > for (let x = <span class="cstat-no" title="statement not covered" >0;</span> x &lt; src.width; x++) {</span>
let idx = <span class="cstat-no" title="statement not covered" >(src.width * y + x) &lt;&lt; 2;</span>
&nbsp;
<span class="cstat-no" title="statement not covered" > for (let i = <span class="cstat-no" title="statement not covered" >0;</span> i &lt; 3; i++) {</span>
let sample = <span class="cstat-no" title="statement not covered" >src.data[idx + i] / 255;</span>
<span class="cstat-no" title="statement not covered" > sample = Math.pow(sample, 1 / 2.2 / src.gamma);</span>
<span class="cstat-no" title="statement not covered" > src.data[idx + i] = Math.round(sample * 255);</span>
}
}
}
<span class="cstat-no" title="statement not covered" > src.gamma = 0;</span>
}
};
&nbsp;
PNG.prototype.adjustGamma = <span class="fstat-no" title="function not covered" >fu</span>nction () {
<span class="cstat-no" title="statement not covered" > PNG.adjustGamma(this);</span>
};
&nbsp;</pre></td></tr></table></pre>
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