Steffen Becker
bd38c955ae
The 1x1 fixture carried an IDAT from a different image: its CRC fails and the zlib stream is truncated. Chromium and WebKit render it anyway, Firefox reports "Image corrupt or truncated", and the same bytes sat in eleven fixtures.
75 lines
3.5 KiB
TypeScript
75 lines
3.5 KiB
TypeScript
import { describe, it, expect } from 'vitest';
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import { zipSync, strToU8 } from 'fflate';
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import { importDocx } from '../../src/lib/import/docx';
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// A 1x1 PNG — real bytes so the importer's magic-number sniff accepts the media.
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const PNG = Uint8Array.from(
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atob('iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAIAAACQd1PeAAAADElEQVR4nGNwaDgAAAKEAYEml6crAAAAAElFTkSuQmCC'),
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(c) => c.charCodeAt(0),
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);
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const REL = 'http://schemas.openxmlformats.org/officeDocument/2006/relationships';
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function docx(files: Record<string, string | Uint8Array>): Uint8Array {
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const entries: Record<string, Uint8Array> = {};
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for (const [k, v] of Object.entries(files)) entries[k] = typeof v === 'string' ? strToU8(v) : v;
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return zipSync(entries);
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}
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// Header with a floating full-page VML background ("Falzmarken"-style, position:absolute,
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// A4-sized) followed by a genuine inline (as-character) logo. Templates put backgrounds
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// and watermarks there; the one-paragraph zone can't position them, so they're dropped.
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const HEADER_XML = `<?xml version="1.0"?>
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<w:hdr xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main"
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xmlns:r="${REL}"
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xmlns:wp="http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing"
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xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main"
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xmlns:v="urn:schemas-microsoft-com:vml">
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<w:p>
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<w:r><w:pict><v:shape style="position:absolute;width:595pt;height:842pt;z-index:-1"><v:imagedata r:id="rIdBg"/></v:shape></w:pict></w:r>
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<w:r><w:drawing><wp:inline><wp:extent cx="571500" cy="190500"/><a:blip r:embed="rIdLogo"/></wp:inline></w:drawing></w:r>
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</w:p>
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</w:hdr>`;
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const DOCUMENT_XML = `<?xml version="1.0"?>
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<w:document xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main" xmlns:r="${REL}">
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<w:body>
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<w:p><w:r><w:t>Body</w:t></w:r></w:p>
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<w:sectPr>
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<w:headerReference w:type="default" r:id="rId1"/>
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<w:pgSz w:w="11906" w:h="16838"/>
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<w:pgMar w:top="1440" w:right="1440" w:bottom="1440" w:left="1440" w:header="567" w:footer="567"/>
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</w:sectPr>
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</w:body>
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</w:document>`;
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const rel = (id: string, type: string, target: string) =>
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`<Relationship Id="${id}" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/${type}" Target="${target}"/>`;
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function images(node: any, out: any[] = []): any[] {
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if (node?.type === 'image') out.push(node);
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for (const c of node?.content ?? []) images(c, out);
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return out;
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}
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describe('DOCX header floating image', () => {
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const bytes = docx({
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'word/document.xml': DOCUMENT_XML,
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'word/_rels/document.xml.rels': `<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">${rel('rId1', 'header', 'header1.xml')}</Relationships>`,
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'word/header1.xml': HEADER_XML,
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'word/_rels/header1.xml.rels': `<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">${rel('rIdBg', 'image', 'media/bg.png')}${rel('rIdLogo', 'image', 'media/logo.png')}</Relationships>`,
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'word/media/bg.png': PNG,
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'word/media/logo.png': PNG,
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});
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it('drops the full-page floating background but keeps the inline logo', () => {
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const res = importDocx(bytes);
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const imgs = images(res.header);
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// Only the inline logo (571500 EMU ≈ 60px), never the A4-sized page background (≈794px).
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expect(imgs).toHaveLength(1);
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expect(imgs[0].attrs.width).toBe(60);
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expect(imgs.some((i) => i.attrs.width > 700)).toBe(false);
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expect([...res.warnings]).toContain('Drawings were removed');
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});
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});
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