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securebit-chat/node_modules/pngjs/coverage/lcov-report/packer-sync.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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<h1><a href="index.html">All files</a> packer-sync.js</h1>
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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 hasSyncZlib = true;
let zlib = require("zlib");
<span class="missing-if-branch" title="if path not taken" >I</span>if (!zlib.deflateSync) {
<span class="cstat-no" title="statement not covered" > hasSyncZlib = false;</span>
}
let constants = require("./constants");
let Packer = require("./packer");
&nbsp;
module.exports = <span class="fstat-no" title="function not covered" >fu</span>nction (metaData, opt) {
<span class="cstat-no" title="statement not covered" > if (!hasSyncZlib) {</span>
<span class="cstat-no" title="statement not covered" > throw new Error(</span>
"To use the sync capability of this library in old node versions, please pin pngjs to v2.3.0"
);
}
&nbsp;
let options = <span class="cstat-no" title="statement not covered" >opt || {};</span>
&nbsp;
let packer = <span class="cstat-no" title="statement not covered" >new Packer(options);</span>
&nbsp;
let chunks = <span class="cstat-no" title="statement not covered" >[];</span>
&nbsp;
// Signature
<span class="cstat-no" title="statement not covered" > chunks.push(Buffer.from(constants.PNG_SIGNATURE));</span>
&nbsp;
// Header
<span class="cstat-no" title="statement not covered" > chunks.push(packer.packIHDR(metaData.width, metaData.height));</span>
&nbsp;
<span class="cstat-no" title="statement not covered" > if (metaData.gamma) {</span>
<span class="cstat-no" title="statement not covered" > chunks.push(packer.packGAMA(metaData.gamma));</span>
}
&nbsp;
let filteredData = <span class="cstat-no" title="statement not covered" >packer.filterData(</span>
metaData.data,
metaData.width,
metaData.height
);
&nbsp;
// compress it
let compressedData = <span class="cstat-no" title="statement not covered" >zlib.deflateSync(</span>
filteredData,
packer.getDeflateOptions()
);
<span class="cstat-no" title="statement not covered" > filteredData = null;</span>
&nbsp;
<span class="cstat-no" title="statement not covered" > if (!compressedData || !compressedData.length) {</span>
<span class="cstat-no" title="statement not covered" > throw new Error("bad png - invalid compressed data response");</span>
}
<span class="cstat-no" title="statement not covered" > chunks.push(packer.packIDAT(compressedData));</span>
&nbsp;
// End
<span class="cstat-no" title="statement not covered" > chunks.push(packer.packIEND());</span>
&nbsp;
<span class="cstat-no" title="statement not covered" > return Buffer.concat(chunks);</span>
};
&nbsp;</pre></td></tr></table></pre>
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at Fri Apr 10 2020 13:53:16 GMT+0200 (Central European Summer Time)
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