Perl

Parse Multipart Binary Http Response

See more HTTP Examples

This example demonstrates how to parse an HTTP response that is multipart and contains a binary file, such as a .zip or .pdf. Perl

use chilkat();

$success = 0;

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

$http = chilkat::CkHttp->new();
$req = chilkat::CkHttpRequest->new();

# ...
# Insert code here to construct some kind of HTTP request.
# this example is to show how to parse a particular kind of response.
# ...
# ...

# Send the request (whatever it may be in your case) to get the HTTP response object.
$resp = chilkat::CkHttpResponse->new();
$success = $http->HttpSReq("www.somedomain.com",443,1,$req,$resp);
if ($success == 0) {
    print $http->lastErrorText() . "\r\n";
    exit;
}

# Get the response body (which is expected to be binary)
$respBody = chilkat::CkBinData->new();
$resp->GetBodyBd($respBody);

# For this example, the response body contains something like this:

# ------=_Part_21302_2029949381.1547401515443
# Content-Type: application/xop+xml; charset=UTF-8; type="text/xml"
# Content-Transfer-Encoding: 8bit
# Content-ID: <rootpart@ws.jboss.org>
# 
# <env:Envelope xmlns:env='http://schemas.xmlsoap.org/soap/envelope/'><env:Header></env:Header><env:Body>...</env:Body></env:Envelope>
# ------=_Part_21302_2029949381.1547401515443
# Content-Type: application/octet-stream
# Content-Transfer-Encoding: binary
# Content-Id: <fileArchivio-7d302908-4d64-43d3-bf4e-79ce806d43b3@ws.jboss.org>
# 
# BINARY_CONTENT_HERE...
# 
# ------=_Part_21302_2029949381.1547401515443--
# 

# Load it into a Chilkat MIME object.
$mime = chilkat::CkMime->new();
$success = $mime->LoadMimeBd($respBody);
if ($success == 0) {
    print $mime->lastErrorText() . "\r\n";
    exit;
}

$numParts = $mime->get_NumParts();
if ($numParts < 2) {
    print "Expected multipart MIME with at least 2 sub-parts." . "\r\n";
    exit;
}

# Get the 1st sub-part, which is the XML.

$part0 = chilkat::CkMime->new();
$mime->PartAt(0,$part0);

# Should be OK because we checked NumParts above..
$xmlStr = $part0->getBodyDecoded();
print $xmlStr . "\r\n";
print "----" . "\r\n";

# Save the 2nd part to a file.  (It is a .zip file in our test case..)

$part1 = chilkat::CkMime->new();
$mime->PartAt(1,$part1);

$success = $part1->SaveBody("qa_output/attachedZip.zip");

# Alternatively, we could extract the binary data to a BinData and use elsewhere..
$zipData = chilkat::CkBinData->new();
$success = $part1->GetBodyBd($zipData);
$success = $zipData->WriteFile("qa_output/attachedZip_again.zip");

print "OK." . "\r\n";