OpenSRS API Integration for XML

Example
Content-length: 55\015\012
# blank lines are ignored
# carriage return/line feed
0.9
[ etc ]
XCP allows empty space to be placed in the XML message, as long as the
XML is still valid, so empty lines or end-of-line characters may be inserted
(though they must be counted in the byte count).
For more information regarding the transmission of data over HTTPS, refer to
this document: http://www.ietf.org/rfc/rfc2616.txt
MD5 Examples
The following examples show how to add an MD5 Signature and create an
XML packet for the various client languages.
PERL
use Digest::MD5 qw/md5_hex/;
md5_hex(md5_hex($xml, $private_key),$private_key)
PHP
md5(md5($xml.$private_key).$private_key);