Google docs viewer with files requiring authorization?

Question

Google docs viewer is quite good and easy to use tool. It only requires the file's path and renders the document. It also has a lot of additional features like choosing page, rotating, etc. However is there a way to set some authorization or additional headers to the call that gets the file ?

As far as I'm aware the document url is passed like that:

http://docs.google.com/viewer?url=<URL_OF_DOCUMENT>&embedded=true

I think this is very important because most of the files are secured ..

The ng-pdf-viewer for example has the option to receive an object as source:

 this.sourceObject = {
     src: this.document.documentLink, 
     httpHeaders: { Authorization: 'Bearer ' + token }
 }

Thanks in advance :)

could you give me a full example for that https://stackoverflow.com/questions/54535679/google-docs-viewer-with-files-requiring-authorization — Nael Zidan, Oct 20 '19 at 19:33

score 3 · Accepted Answer · answered Feb 23 '19 at 10:47

3

I found the solution! The files should be loaded as blobs:

new Blob([new Uint8Array(response)], { type: 'application/pdf' })

and then the blobUrl should be passed to the viewer:

this.iframeSrc = `https://docs.google.com/viewer?url=${this.document.blobUrl}&embedded=true`;

answered Feb 23 '19 at 10:47

user3568791

676
1
7
22

1

Can you elaborate on this? Niether `URL.createObjectUrl()` nor data url's seem to work – Mordechai Jul 27 '20 at 17:53
@user3568791 does blob url works in google doc viewer? – Soorajlal K G Aug 21 '20 at 05:43
1

Yes, it works. You have to explicitly set the type of the Blob to 'application/pdf'. – user3568791 Aug 21 '20 at 09:40
1

Did anyone actually get it to work besides the post author? – Roland Pihlakas Oct 21 '20 at 16:14
Not working! When you put blob into javascript template string, you get: https://docs.google.com/viewer?embedded=true&url=[object Blob] If you convert this blob to URL using URL.createObjectURL(pdfBlob), still google will not show it. – Ronen Aug 01 '22 at 07:25

Google docs viewer with files requiring authorization?

1 Answers1