Error 414 Request-URI Too Large - Adjust nginx config

Hey guys!

I’m trying to creat an article folowing the example in the api documentation about creating a article with an inline image.

The problem is, when I try to run it to upload a photo I get the error:
414 Request-URI Too Large - nginx

Apparentely my base64 string is too long.
When sending small images, it works fine. But if I send a photo, it doesn’t.
I’ve tried to edit the ‘default’ file, located in /etc/nginx/sites-enabled, but when I restart the container the file is replaced again with a new file.

How can I make permanent adjustments on the nginx configuration so I can use a larger value on large_client_header_buffers to be able to pass the image using base64 trough the http post?

Infos:

  • Used Zammad version: 6.0.0
  • Used Zammad installation type: docker-compose
  • Operating system: ?
  • Browser + version: Brave

Expected behavior:

  • Article created with image.

Actual behavior:

  • Error 414

Steps to reproduce the behavior:

  • Follow the ‘Create Article with inline image’ example, using a larger image.

Can anyone please help?

The request you’re sending might be a big plus to understand what you’re actually trying.
Note that URLs do have fixed size limits. If your webserver is complaining about these, that doesn’t too right to me.

I’m doing exactly as the documentation says.
The only difference is that bigger images have a bigger base64 string. And when I get some picture in WhatsApp and convert it to base64, is too long for the api because of nginx settings…
A smaller image (shorter base64 string) works normally.

Again, please: Share your payload.

I’m sory. Here it is.

I’m making a post to: http://192.168.0.10:3000/api/v1/ticket_articles

The payload that doesn’t work is:
(“Full” image 240x207px, base64 with 9092 characters)

{
   "ticket_id": 88,
   "subject": "Resposta via WhatsApp",
   "body": "Imagem<br> <img src=\"data:image/jpeg;base64,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\">",
   "content_type": "text/html",
   "type": "chat",
   "internal": false,
   "origin_by_id":3,
   "message_id": "false_74CD55F9B1C706ED",
   "in_reply_to": "true_D3B9BA2CD8"
} 

If I cut the image to 50x50px, it works.
Using the exactly same code.
(Base64 with 1496 characters)

{
   "ticket_id": 88,
   "subject": "Resposta via WhatsApp",
   "body": "Imagem<br> <img src=\"data:image/jpeg;base64,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\">",
   "content_type": "text/html",
   "type": "chat",
   "internal": false,
   "origin_by_id":3,
   "message_id": "false_66D269A15D786C",
   "in_reply_to": "true_03D3B9BA2CD8"
} 

Result:
image


Those are only testing images.
Usually a picture the user send is way bigger (maybe 3500x2000px, and maybe 70,000 characters in base64).

I’m afraid it’s working perfectly fine for me:

However, note that the version I tested is a current stable version (v6.1.0.876840eb8.saas)

This is the command I successfully run:

curl --location 'https://<FQDN>/api/v1/ticket_articles' \
--header 'Content-Type: application/json' \
--header 'Authorization: Bearer <TOKEN>' \
--data '{
   "ticket_id": 2,
   "subject": "Resposta via WhatsApp",
   "body": "Imagem<br> <img src=\"data:image/jpeg;base64,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\">",
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   "type": "chat",
   "internal": false,
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} '

I’ll update my version and try again…
Can you upload larger images?

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