Written by James McDonald

September 30, 2021

CakePHP 2 Form and trying to POST to it using curl

This is what I am trying to duplicate with curl

-----------------------------1993502965129257581246610166
Content-Disposition: form-data; name="_method"

POST
-----------------------------1993502965129257581246610166
Content-Disposition: form-data; name="data[PrintLabel][printer]"

10
-----------------------------1993502965129257581246610166
Content-Disposition: form-data; name="data[PrintLabel][upload]"; filename=""
Content-Type: application/octet-stream


-----------------------------1993502965129257581246610166
Content-Disposition: form-data; name="data[PrintLabel][action]"

print
-----------------------------1993502965129257581246610166--

Curl POST to CakePHP Form

This is what is working with curl

#!/bin/sh
printer=10

curl 	--form _method=POST \
	--form 'data[PrintLabel][upload]'=@./ASN_R-34718415X-batch.xml \
	--form 'data[PrintLabel][action]'=print \
	--form 'data[PrintLabel][printer]'=${printer} \
	http://10.197.3.190:8093/project1/PrintLabels/xmlToPdf

Powershell (version 5.x) POST to CakePHP Form

Important!: The following doesn’t work on Powershell 7

If the file is named powershellPost.ps1 run it as follows:

powershell.exe powershellPost.ps1

$FilePath = "$($pwd)\ASN_R-34718415X-batch.xml";
$URL = 'http://10.197.3.190:8093/100pbc/PrintLabels/xmlToPdf';

$fileBytes = [System.IO.File]::ReadAllBytes($FilePath);
$fileEnc = [System.Text.Encoding]::GetEncoding('ISO-8859-1').GetString($fileBytes);
$boundary = [System.Guid]::NewGuid().ToString(); 
$LF = "`r`n";


$bodyLines = (
    "--$boundary",
    "Content-Disposition: form-data; name=`"_method`"",
    "",
    "POST",
    "--$boundary",
    "Content-Disposition: form-data; name=`"data[PrintLabel][printer]`"",
    "",
    10,
    "--$boundary",
    "Content-Disposition: form-data; name=`"data[PrintLabel][upload]`"; filename=`"hijames.txt`"",
    "Content-Type: application/octet-stream",
    "",
    $fileEnc,
    "--$boundary",
    "Content-Disposition: form-data; name=`"data[PrintLabel][action]`"$LF",
    "print",
    "--$boundary--$LF" 
) -join $LF

Invoke-RestMethod -Uri $URL -Method Post -ContentType "multipart/form-data; boundary=`"$boundary`"" -Body $bodyLines

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