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add support for storing canvas libraries in note attachments plus storing exported SVG in attachment

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zadam
2023-09-08 21:53:57 +02:00
parent 0b84524807
commit f37dc66074
18 changed files with 195 additions and 219 deletions
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29
src/share/routes.js
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@@ -142,8 +142,6 @@ function register(router) {
});
}
router.use('/share/canvas_share.js', express.static(path.join(__dirname, 'canvas_share.js')));
router.get('/share/', (req, res, next) => {
if (req.path.substr(-1) !== '/') {
res.redirect('../share/');
@@ -219,19 +217,24 @@ function register(router) {
* special "image" type. the canvas is actually type application/json
* to avoid bitrot and enable usage as referenced image the svg is included.
*/
const content = image.getContent();
try {
const data = JSON.parse(content);
let svgString = '<svg/>'
const attachment = image.getAttachmentByTitle('canvas-export.svg');
const svg = data.svg || '<svg />';
addNoIndexHeader(image, res);
res.set('Content-Type', "image/svg+xml");
res.set("Cache-Control", "no-cache, no-store, must-revalidate");
res.send(svg);
} catch (err) {
res.status(500)
.json({ message: "There was an error parsing excalidraw to svg." });
if (attachment) {
svgString = attachment.getContent();
} else {
// backwards compatibility, before attachments, the SVG was stored in the main note content as a separate key
const contentSvg = image.getJsonContentSafely()?.svg;
if (contentSvg) {
svgString = contentSvg;
}
}
const svg = svgString
res.set('Content-Type', "image/svg+xml");
res.set("Cache-Control", "no-cache, no-store, must-revalidate");
res.send(svg);
} else {
// normal image
res.set('Content-Type', image.mime);