PDF thumbnails do not work in compose deployment

[make-github-pseudonymous-again]

Here are the logs I get:

patient-web-1                         | chunk of file 9GcQnPh6otwongK5a/123.pdf was not found
patient-web-1                         | {
patient-web-1                         |   error: TypeError: Cannot read property 'workerSrc' of undefined
patient-web-1                         |       at imports/lib/pdf/pdf.ts:28:32
patient-web-1                         |       at /home/nonroot/dist/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/fiber_pool.js:43:40
patient-web-1                         |    => awaited here:
patient-web-1                         |       at Function.Promise.await (/home/nonroot/dist/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/promise_server.js:56:12)
patient-web-1                         |       at imports/lib/pdf/pdfthumbnails.ts:225:21
patient-web-1                         |       at /home/nonroot/dist/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/fiber_pool.js:43:40
patient-web-1                         |    => awaited here:
patient-web-1                         |       at Function.Promise.await (/home/nonroot/dist/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/promise_server.js:56:12)
patient-web-1                         |       at imports/api/uploads.ts:88:15
patient-web-1                         |       at /home/nonroot/dist/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/fiber_pool.js:43:40
patient-web-1                         | }
patient-web-1                         | chunk of file ZLFjohwfk3RSgbGR3/456.pdf was not found
patient-web-1                         | {
patient-web-1                         |   error: TypeError: Cannot read property 'workerSrc' of undefined
patient-web-1                         |       at imports/lib/pdf/pdf.ts:28:32
patient-web-1                         |       at /home/nonroot/dist/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/fiber_pool.js:43:40
patient-web-1                         |    => awaited here:
patient-web-1                         |       at Function.Promise.await (/home/nonroot/dist/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/promise_server.js:56:12)
patient-web-1                         |       at imports/lib/pdf/pdfthumbnails.ts:225:21
patient-web-1                         |       at /home/nonroot/dist/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/fiber_pool.js:43:40
patient-web-1                         |    => awaited here:
patient-web-1                         |       at Function.Promise.await (/home/nonroot/dist/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/promise_server.js:56:12)
patient-web-1                         |       at imports/api/uploads.ts:88:15
patient-web-1                         |       at /home/nonroot/dist/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/fiber_pool.js:43:40
patient-web-1                         | }

[make-github-pseudonymous-again]

Just confirmed this works with meteor npm run dev. So likely a problem with the container image.

[make-github-pseudonymous-again]

So, apparently, the image contains both dist/programs/server/node_modules and dist/programs/server/npm/node_modules. Only dist/programs/server/npm/node_modules/pdfjs-dist exists. It contains dist/programs/server/npm/node_modules/pdfjs-dist/legacy/build/pdf.js.

This does not appear to be a problem for other packages which use dynamic imports of specific paths (healthone, medidoc, date-fns, @mui/x-date-pickers).

[make-github-pseudonymous-again]

Looking at the first such failure we find another error message regarding missing libuuid.so.1, required by canvas:

patient-web-1  | {
patient-web-1  |   error: Error: libuuid.so.1: cannot open shared object file: No such file or directory
patient-web-1  |       at Object.Module._extensions..node (internal/modules/cjs/loader.js:1175:18)
patient-web-1  |       at Module.load (internal/modules/cjs/loader.js:981:32)
patient-web-1  |       at Module.Mp.load (/home/nonroot/dist/programs/server/runtime.js:37:33)
patient-web-1  |       at Function.Module._load (internal/modules/cjs/loader.js:821:12)
patient-web-1  |       at Module.require (internal/modules/cjs/loader.js:1005:19)
patient-web-1  |       at require (internal/modules/cjs/helpers.js:107:18)
patient-web-1  |       at Object.<anonymous> (/home/nonroot/dist/programs/server/npm/node_modules/canvas/lib/bindings.js:3:18)
patient-web-1  |       at Module._compile (internal/modules/cjs/loader.js:1116:14)
patient-web-1  |       at Module.Mp._compile (/home/nonroot/dist/programs/server/runtime.js:77:23)
patient-web-1  |       at Object.Module._extensions..js (internal/modules/cjs/loader.js:1145:10)
patient-web-1  |       at Module.load (internal/modules/cjs/loader.js:981:32)
patient-web-1  |       at Module.Mp.load (/home/nonroot/dist/programs/server/runtime.js:37:33)
patient-web-1  |       at Function.Module._load (internal/modules/cjs/loader.js:821:12)
patient-web-1  |       at Module.require (internal/modules/cjs/loader.js:1005:19)
patient-web-1  |       at require (internal/modules/cjs/helpers.js:107:18)
patient-web-1  |       at Object.<anonymous> (/home/nonroot/dist/programs/server/npm/node_modules/canvas/lib/canvas.js:9:18)
patient-web-1  |    => awaited here:
patient-web-1  |       at Function.Promise.await (/home/nonroot/dist/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/promise_s
erver.js:56:12)
patient-web-1  |       at imports/lib/pdf/pdf.ts:25:31
patient-web-1  |       at /home/nonroot/dist/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/fiber_pool.js:43:40
patient-web-1  |    => awaited here:
patient-web-1  |       at Function.Promise.await (/home/nonroot/dist/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/promise_s
erver.js:56:12)
patient-web-1  |       at imports/lib/pdf/pdfthumbnails.ts:225:21
patient-web-1  |       at /home/nonroot/dist/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/fiber_pool.js:43:40
patient-web-1  |    => awaited here:
patient-web-1  |       at Function.Promise.await (/home/nonroot/dist/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/promise_s
erver.js:56:12)
patient-web-1  |       at imports/api/uploads.ts:88:15
patient-web-1  |       at /home/nonroot/dist/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/fiber_pool.js:43:40 {
patient-web-1  |     code: 'ERR_DLOPEN_FAILED'
patient-web-1  |   }
patient-web-1  | }

[email protected] which we are running requires canvas as a polyfill on Node.js. See:

• https://github.com/mozilla/pdf.js/blob/af64149885482cbbe577ef90abf06272f34327bb/src/display/node_utils.js#L47

The error message is a bit laborious to decrypt because canvas fails with ERR_DLOPEN_FAILED, but only on first attempt. Subsequent requires just silently return an empty module object.

[make-github-pseudonymous-again]

PDF.js uses @napi-rs/canvas instead of canvas since:

• mozilla/pdf.js@86f943c
• [api-minor] Replace the canvas package with @napi-rs/canvas mozilla/pdf.js#19015
• https://github.com/mozilla/pdf.js/releases/tag/v4.9.124

[make-github-pseudonymous-again]

We are running [email protected] and cannot possibly easily upgrade PDF.js at the moment. See:

• Prevent regressions when upgrading pdfjs-dist and downgrade to [email protected] #937
• Upgrade pdfjs-dist to v3.5 #944
• Upgrade pdfjs-dist to v3.6 #945
• Upgrade pdfjs-dist to v3.7 #946
• Upgrade pdfjs-dist to v3.8 #947
• Upgrade pdfjs-dist to v3.9 #948
• Upgrade pdfjs-dist to v3.10 #949
• Upgrade pdfjs-dist to v4 #936

[make-github-pseudonymous-again]

Since the main image is distroless-based but we build on Debian slim, one option is perhaps to copy the missing library from the build image to the main image.