Amazon S3 - List Buckets

Demonstrates how to send a GET request to the Amazon S3 service to list buckets.

Download Chilkat Ruby Library

require 'chilkat'

http = Chilkat::CkHttp.new()
success = http.UnlockComponent("Anything for 30-day trial.")
if (success != true)
    #  Unlock failed.
    print http.lastErrorText() + "\n"
    exit
end

#  The HTTP component now includes a method to generate
#  the current date/time in RFC 2616 compliant format.
#  Note: The GenTimeStamp method is available as a pre-release (as of 18-June-2008).
#  It will become available in the next new version dated after
#  18-June-2008.
curDateTime = http.genTimeStamp()

print curDateTime + "\n"

#  The GET operation on the Service endpoint (s3.amazonaws.com) returns a list of all of the buckets owned by the authenticated sender of the request.
strToSign = "GET" + "\n" + "\n" + "\n" + curDateTime + "\n" + "/"

crypt = Chilkat::CkCrypt2.new()

success = crypt.UnlockComponent("Anything for 30-day trial.")
if (success != true)
    print crypt.lastErrorText() + "\n"
    exit
end

#  We want SHA1 for the HMAC hash algorithm:
crypt.put_HashAlgorithm("sha1")

#  These must be changed for your account:
AWSAccessKeyId = "0PN5J17HBGZHT7JJ3X82"
AWSSecretAccessKey = "uV3F3YluFJax1cknvbcGwgjvx4QpvB+leU8dUj2o"

#  Set the HMAC secret key:
crypt.SetHmacKeyString(AWSSecretAccessKey)

#  By setting the charset = "utf-8", the string will be converted
#  to utf-8 (internal to the Chilkat component) prior to signing:
crypt.put_Charset("utf-8")

#  Indicate that Base64 output is desired:
crypt.put_EncodingMode("base64")

signature = crypt.hmacStringENC(strToSign)

authValue = "AWS " + AWSAccessKeyId + ":" + signature

http.SetRequestHeader("Authorization",authValue)
http.SetRequestHeader("Date",curDateTime)

xmlResponse = http.quickGetStr("http://s3.amazonaws.com/")
if (xmlResponse == nil )
    #  Failed.  Show the last request header, response header,
    #  and response body.
    print http.lastHeader() + "\n";
    print "---" + "\n";
    print http.lastResponseHeader() + "\n";
    print "---" + "\n";
    print http.lastErrorText() + "\n";
else
    #  Success, show the XML response:
    print xmlResponse + "\n";
end