(Perl) S3 Upload String using AWS Signature Version 2

Example to upload the contents of a string to the Amazon S3 service, using the older AWS Signature Version 2.

Chilkat Perl Downloads Perl Module for Windows, MacOS, Linux, Alpine Linux, Solaris

use chilkat();

# Demonstrates how to use older AWS S3 Signature Version 2 for uploading the contents
# of a string variable to an object in a bucket.

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

$rest = chilkat::CkRest->new();

# Connect to the Amazon AWS REST server.
$bTls = 1;
$port = 443;
$bAutoReconnect = 1;
# The file is uploaded to the bucket named "chilkat100", which becomes part of the domain:
$success = $rest->Connect("chilkat100.s3.amazonaws.com",$port,$bTls,$bAutoReconnect);

# ----------------------------------------------------------------------------
# Important: For buckets created in regions outside us-east-1,
# there are three important changes that need to be made.
# See Working with S3 Buckets in Non-us-east-1 Regions for the details.
# ----------------------------------------------------------------------------

# Provide AWS credentials for the REST call.
$authAws = chilkat::CkAuthAws->new();
$authAws->put_AccessKey("AWS_ACCESS_KEY");
$authAws->put_SecretKey("AWS_SECRET_KEY");
$authAws->put_ServiceName("s3");

# For AWS Signature Version 2, the following two properties need to be set:
$authAws->put_SignatureVersion(2);
# See http://docs.aws.amazon.com/AmazonS3/latest/dev/RESTAuthentication.html#ConstructingTheCanonicalizedResourceElement
# The bucket is "chilkat100", and the uriPath is "/hamlet_play.xml", which must match
# the URI path passed to the FullRequestString method below.
$authAws->put_CanonicalizedResourceV2("/chilkat100/hamlet_play.xml");

$success = $rest->SetAuthAws($authAws);

# Load a text file into memory.
$fac = chilkat::CkFileAccess->new();
$fileContents = $fac->readEntireTextFile("qa_data/xml/hamlet.xml","utf-8");
if ($fac->get_LastMethodSuccess() != 1) {
    print $fac->lastErrorText() . "\r\n";
    exit;
}

# To send the file in gzip or deflate compressed format, set the Content-Encoding request
# header to "gzip" or "deflate".  (this is optional)
$success = $rest->AddHeader("Content-Encoding","gzip");

# Indicate the Content-Type of our upload.  (This is optional)
$success = $rest->AddHeader("Content-Type","text/xml");

# We can add an "Expect: 100-continue" header so that if the request is rejected
# by the server immediately after receiving the request header, it can respond
# and the client (Chilkat) can avoid sending the file data.
# (this is optional)
$success = $rest->AddHeader("Expect","100-continue");

# Upload the file to Amazon S3.
$responseBodyStr = $rest->fullRequestString("PUT","/hamlet_play.xml",$fileContents);
if ($rest->get_LastMethodSuccess() != 1) {
    print $rest->lastErrorText() . "\r\n";
    exit;
}

# Did we get a 200 response indicating success?
$statusCode = $rest->get_ResponseStatusCode();
if ($statusCode != 200) {
    print "Error response: " . $responseBodyStr . "\r\n";
    print "Status code: " . $statusCode . ", Status text: " . $rest->responseStatusText() . "\r\n";
    exit;
}

print "File successfully uploaded." . "\r\n";