Illuminate\Http\Exceptions\PostTooLargeException when posting a form

[fwerner13]

On a fresh install using the provided docker-compose.yml, whenever I post a form (create a new shelf, try to change the default admin password) I get an Illuminate\Http\Exceptions\PostTooLargeException.

Perhaps this is caused by

https://github.com/linuxserver/docker-bookstack/pull/63/commits/8af8464d49025f14990a892a4a7ed1432e75ebc0#diff-47ffcee93649ec8520ea742cfddc9b9bR66

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Expected Behavior

I should be able to post forms.

Current Behavior

When I post any form, the error Illuminate\Http\Exceptions\PostTooLargeException appears.

Steps to Reproduce

1. Fresh install using the provided docker-compose.yml
2. Log in as admin
3. Try to create a shelf

Environment

OS:
CPU architecture: x86_64/arm32/arm64
How docker service was installed:

Command used to create docker container (run/create/compose/screenshot)

version: "2"
services:
  bookstack:
    image: linuxserver/bookstack
    container_name: bookstack
    environment:
      - PUID=1000
      - PGID=1000
      - DB_HOST=bookstack_db
      - DB_USER=bookstack
      - DB_PASS=mypassword
      - DB_DATABASE=bookstackapp
    volumes:
      - /var/www/bookstack/config:/config
    ports:
      - 80:80
    restart: unless-stopped
    depends_on:
      - bookstack_db
  bookstack_db:
    image: linuxserver/mariadb
    container_name: bookstack_db
    environment:
      - PUID=1000
      - PGID=1000
      - MYSQL_ROOT_PASSWORD=mypassword
      - TZ=Europe/Berlin
      - MYSQL_DATABASE=bookstackapp
      - MYSQL_USER=bookstack
      - MYSQL_PASSWORD=mypassword
    volumes:
      - /var/www/bookstack/config:/config
    restart: unless-stopped

Docker logs

The docker logs show nothing, but the nginx logs do:

2020/09/18 15:37:04 [error] 357#357: *19 FastCGI sent in stderr: "PHP message: PHP Warning:  POST Content-Length of 1072 bytes exceeds the limit of 100 bytes in Unknown on line 0" while reading response header from upstream, client: 5.180.62.10, server: _, request: "POST /settings/users/1 HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "78.46.181.222", referrer: "http://78.46.181.222/settings/users/1"

I'm don't know that much about php.ini configuration, but googling for post_max_size the size was always specified as 100M while the recent change used 100MB - don't know if that could be the problem maybe.

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[ironicbadger]

Cannot recreate using the provided docker-compose I'm afraid.

[ssddanbrown]

Heard another report in the BookStack discord of this error being thrown with the linuxserver image.

Just tested this myself, using the current v0.30.0-ls105 image, without any proxy in a fresh setup and could not reproduce. Saving a fairly large page and uploading images worked without issue.

[ssddanbrown]

Never mind the above, the issue does occur after restarting the containers. On restart the values from the php-local.ini are read in, which were written in the previous container start-up, which then cause this error since the unexpected MB in the written php-local.ini causes application-level middleware to check the post body against a size of 100 bytes instead of 100 MB.

I see there's a pending pull request to solve this: https://github.com/linuxserver/docker-bookstack/pull/65

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