Testing multipart/form-data uploads with Post Test Server

The fact that I am getting feature requests means people are actually using my post test server. This makes me happy πŸ™‚ The most recent thing people asked for was multipart/form-data uploads. As an example for this behavior see my test form (which was submitted by a user who was super helpful).

Update:This poor post has been imported from blog to blog over the years and as a result this code snippet has been horribly maimed and will not be formatted. C’est la vie.

[code language=”html”]
<html>
<body>
<form action="http://posttestserver.com/post.php?dir=example" method="post" enctype="multipart/form-data">
File: <input type="file" name="submitted">
<input type="hidden" name="someParam" value="someValue"/>
<input type="submit" value="send">
</form>
</body>
</html>[/code]

The resulting output should contain information about the file and a link to the actual uploaded file. Remember, this data is public and you should NOT upload private data.

18 thoughts on “Testing multipart/form-data uploads with Post Test Server

  1. Hi,

    I found a site http://www.hurl.it/#top which allow me to push XML formatted data to your site to test if all working.

    The format I sent from this site as follows (within body)

    referance_number
    station id
    station name

    2012
    01
    01

    01
    02
    03

    2012
    10
    30

    10
    34
    54

    2

    8
    RED_PHASE
    Red Phase Status

    1

    9
    YEL_PHASE
    Yellow Phase Status

    1

    Complete

    Your testing site captured it correctly.

    So, I have answered my question, we should use

    Sharing here so that might help others.

    Mu.Pathma

  2. Awesome. Your site is just what I needed to validate a semi-complex SSL proxying proof-of-concept. Thanks so very much!

  3. First, thanks for this helpful httpserver!

    I’m facing an issue but I don’t know if it’s from my client or not.

    I’m using a java application.
    If I try to upload an file with ContentType = “application/octet-stream”, it’s working perfectly and the response shows me
    == Multipart File upload. ==
    Received 1 file(s)
    0: posted name=file
    name: file-1.wav
    type: application/octet-stream

    …But not when I try to set the ContentType = “audio/wav”
    == Multipart File upload. ==
    Received 0 file(s)

    I hope someone could help me to figure out why it’s happening.

    Regards,
    Marcelo.

    1. Marcelo,

      I’m glad this was helpful.

      I don’t think you can set the content type to audio/wav on an upload. The receiving server doesn’t care about the contents of the file, it just cares about what format the data being sent to it is stored in. This is why octet-stream works.

      What is the use case you are trying to solve for?

      — Henry

  4. Hi Henry, thanks for your reply!

    That is a server-side request (or at least the documentation say that)

    I guess I will try to test the real server and see what happen.
    But at least, thanks to your server, I need to “play” only with a single field.

    Regards,
    Marcelo.

  5. Hey Henry,
    Your server is immensely helpful. I wanted to test background upload in android and your server saved a lot of time.
    Just wanted you know that Data Im uploading is useless so you can delete it anytime. Hoping this is not costing you much.

  6. Hi Henry, a big thank you for the server and guides. Most helpful when i needed. I have a problem though and i’m not sure what’s wrong with the method i’m using. Using c# to issue a file upload with the multipart/form and i’m returned with response below but when i’m not able to find the file i uploaded or download/save it. What did i miss? Pls help. Thanks.

    Time: Wed, 25 May 16 00:07:14 -0700
    Source ip: 1.9.226.196

    Headers (Some may be inserted by server)
    REQUEST_URI = /post.php?dir=shasi&method=post&enctype=multipart/form-data&ContentType=application/octet-stream
    QUERY_STRING = dir=shasi&method=post&enctype=multipart/form-data&ContentType=application/octet-stream
    REQUEST_METHOD = POST
    GATEWAY_INTERFACE = CGI/1.1
    REMOTE_PORT = 17466
    REMOTE_ADDR = 1.9.226.196
    HTTP_CONNECTION = close
    HTTP_EXPECT = 100-continue
    CONTENT_LENGTH = 192
    HTTP_HOST = posttestserver.com
    CONTENT_TYPE = multipart/form-data; boundary=———————8d384ae4026adbf
    UNIQUE_ID = V0VPIUBaMGUAAHO8Y@MAAAAF
    REQUEST_TIME_FLOAT = 1464160034.4406
    REQUEST_TIME = 1464160034

    No Post Params.
    Empty post body.

    == Multipart File upload. ==
    Received 1 file(s)
    0: posted name=file
    name: test.csv
    type: application/octet-stream
    error: 0
    size: 0
    Uploaded File: http://posttestserver.com/files/2016/05/25/f_00.07.141242971604

    1. You are doing everything right. Dreamhost just started deleting files because they were too big (I think people are using PTS to share media). I will fix it this week.

      1. Scratch that. The file is there, it’s just empty. Looking at my logs no file content was uploaded. πŸ™

    1. Unfortunately I already suffer a ton of attacks and it has some hosting specific info in it. Shoot me an email and I’m happy to share the relevant parts.

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