limiting upload file size

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  • siliconmike
    #1

    limiting upload file size

    >From my various readings I figured that there is no reliable way to
    check file size before upload begins via a POST method. Browser side
    checking can be fooled.

    I also figured that file size is checked only after the upload
    finishes.

    This can be dangerous since a large file upload can take server disk
    space down.
    (atleast for a while - until the php script detects it and deletes the
    file)

    The server *MUST* stop receiving a file immediately, if file size grows
    beyond a specified size.

    How is this achieved ?

    Mike

    Tags: None
    • Philipp Heckel
      #2
      Re: limiting upload file size

      Hi Mike,

      there is a php-setting called "upload_max_fil esize". you can set it via
      editing php.ini or the ini_set()-function in your script.

      it is also possible to use the browser to control max-uploaded size:
      <input type="hidden" name="MAX_FILE_ SIZE" value="30000">

      please read php.net: http://www.php.net/manual/en/features.file-upload.php

      Greets,
      Philipp

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        • siliconmike
          #3
          Re: limiting upload file size

          I read that already, but it didn't exactly specify whether the server
          stops receiving the file *immediately* upon reaching the max limit.

          (or did I miss something?)

          Mike

          Philipp Heckel wrote:[color=blue]
          > Hi Mike,
          >
          > there is a php-setting called "upload_max_fil esize". you can set it via
          > editing php.ini or the ini_set()-function in your script.
          >
          > it is also possible to use the browser to control max-uploaded size:
          > <input type="hidden" name="MAX_FILE_ SIZE" value="30000">
          >
          > please read php.net: http://www.php.net/manual/en/features.file-upload.php
          >
          > Greets,
          > Philipp[/color]

            Comment

            • Andy Hassall
              #4
              Re: limiting upload file size

              On 3 Sep 2005 03:07:40 -0700, "siliconmik e" <siliconmike@ya hoo.com> wrote:
              [color=blue]
              >The server *MUST* stop receiving a file immediately, if file size grows
              >beyond a specified size.
              >
              >How is this achieved ?[/color]

              core - Apache HTTP Server
              http://httpd.apache.org/docs/2.0/mod/core.html#limitrequestbody


              --
              Andy Hassall :: andy@andyh.co.u k :: http://www.andyh.co.uk
              http://www.andyhsoftware.co.uk/space :: disk and FTP usage analysis tool

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