use strict;
use warnings;
use WWW::Curl::Easy;
use Data::GUID;
use Date::Manip;
use XML::Simple;
use Data::Dumper;



sub make_guid {
   my $guidobj = Data::GUID->new;
   return $guidobj->as_string;
}

sub curl_request {
   my ($url,$data) = @_;

   my $headers = [
      'Connection: Keep-Alive',
      "Content-type: application/soap+xml; charset=UTF-8",
      "Content-length: " . length($data),
   ];
   my $curl = WWW::Curl::Easy->new;
   $curl->setopt(CURLOPT_URL, $url);
   $curl->setopt(CURLOPT_TIMEOUT, 60);
   $curl->setopt(CURLOPT_SSL_VERIFYPEER, 0);
   $curl->setopt(CURLOPT_FOLLOWLOCATION, 1);
   $curl->setopt(CURLOPT_SSLVERSION, 3);
   $curl->setopt(CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
   $curl->setopt(CURLOPT_HTTPHEADER, $headers);
   $curl->setopt(CURLOPT_POST, 1);
   $curl->setopt(CURLOPT_POSTFIELDS, $data);
   my $response_body;
   $curl->setopt(CURLOPT_WRITEDATA,\$response_body);
   my $retcode = $curl->perform;
   return $retcode, $response_body;
}

my $guid = make_guid;
my $reqguid = make_guid;

my $region = 'urn:crmemea:dynamics.com'; # use your region
my $username = 'youremailaddress';
my $password = 'yourpassword';

my $host = "yourhost.crm4.dynamics.com"; # use crm5 etc depending on r
+egion
my $loginurl = 'https://login.microsoftonline.com/RST2.srf';
my $serviceurl = "https://$host/XRMServices/2011/Organization.svc";

my $OCPRequest = '<s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-
+envelope" xmlns:a="http://www.w3.org/2005/08/addressing" xmlns:u="htt
+p://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utili
+ty-1.0.xsd">
       <s:Header>
      <a:Action s:mustUnderstand="1">http://schemas.xmlsoap.org/ws/200
+5/02/trust/RST/Issue</a:Action>
      <a:MessageID>urn:uuid:' . $guid . '</a:MessageID>
      <a:ReplyTo>
        <a:Address>http://www.w3.org/2005/08/addressing/anonymous</a:A
+ddress>
      </a:ReplyTo>
      <a:To s:mustUnderstand="1">https://login.microsoftonline.com/RST
+2.srf</a:To>
      <o:Security s:mustUnderstand="1" xmlns:o="http://docs.oasis-open
+.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">
        <u:Timestamp u:Id="_0">
       <u:Created>'. UnixDate(ParseDate("now"), "%Y-%m-%dT%H:%M:%S").'
+Z</u:Created>
       <u:Expires>' .  UnixDate(ParseDate("24 hours"), "%Y-%m-%dT%H:%M
+:%S") . 'Z</u:Expires>
        </u:Timestamp>
        <o:UsernameToken u:Id="uuid-cdb639e6-f9b0-4c01-b454-0fe244de73
+af-1">
       <o:Username>' . $username . '</o:Username>
       <o:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-
+200401-wss-username-token-profile-1.0#PasswordText">' . $password . '
+</o:Password>
        </o:UsernameToken>
      </o:Security>
       </s:Header>
       <s:Body>
      <t:RequestSecurityToken xmlns:t="http://schemas.xmlsoap.org/ws/2
+005/02/trust">
        <wsp:AppliesTo xmlns:wsp="http://schemas.xmlsoap.org/ws/2004/0
+9/policy">
       <a:EndpointReference>
         <a:Address>'. $region .'</a:Address>
       </a:EndpointReference>
        </wsp:AppliesTo>
        <t:RequestType>http://schemas.xmlsoap.org/ws/2005/02/trust/Iss
+ue</t:RequestType>
      </t:RequestSecurityToken>
       </s:Body>
     </s:Envelope>';

my ($retcode, $response);

($retcode, $response) = curl_request($loginurl, $OCPRequest);
if ($retcode) {
   die("An error logging in\n");
}
my $xml = XMLin($response);
my $cipher1 = $xml->{"S:Body"}{'wst:RequestSecurityTokenResponse'}{'ws
+t:RequestedSecurityToken'}{'EncryptedData'}{'ds:KeyInfo'}{'EncryptedK
+ey'}{'CipherData' }{'CipherValue'};
my $cipher2 = $xml->{"S:Body"}{'wst:RequestSecurityTokenResponse'}{'ws
+t:RequestedSecurityToken'}{'EncryptedData'}{ 'CipherData'}{'CipherVal
+ue'};
my $keyidentifier = $xml->{"S:Body"}{'wst:RequestSecurityTokenResponse
+'}{'wst:RequestedSecurityToken'}{'EncryptedData'}{ 'ds:KeyInfo'}{'Enc
+ryptedKey'}{'ds:KeyInfo'}{'wsse:SecurityTokenReference'}{'wsse:KeyIde
+ntifier'}{'content'};

my $action = "Execute"; # or Retrieve, Create etc
my $envelope_start = '
                <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-en
+velope"
                xmlns:a="http://www.w3.org/2005/08/addressing"
                xmlns:u="http://docs.oasis-open.org/wss/2004/01/oasis-
+200401-wss-wssecurity-utility-1.0.xsd">';
my $crmSoapRequestHeader = '
                  <s:Header>
                    <a:Action s:mustUnderstand="1">
                    http://schemas.microsoft.com/xrm/2011/Contracts/Se
+rvices/IOrganizationService/' . $action . '</a:Action>
                    <a:MessageID>
                    urn:uuid:' . $reqguid . '</a:MessageID>
                    <a:ReplyTo>
                      <a:Address>
                      http://www.w3.org/2005/08/addressing/anonymous</
+a:Address>
                    </a:ReplyTo>
                    <a:To s:mustUnderstand="1">
                    ' . $serviceurl . '</a:To>
                    <o:Security s:mustUnderstand="1"
                    xmlns:o="http://docs.oasis-open.org/wss/2004/01/oa
+sis-200401-wss-wssecurity-secext-1.0.xsd">
                      <u:Timestamp u:Id="_0">
                        <u:Created>' .UnixDate(ParseDate("now"), "%Y-%
+m-%dT%H:%M:%S") . 'Z</u:Created>
                        <u:Expires>' . UnixDate(ParseDate("24 hours"),
+ "%Y-%m-%dT%H:%M:%S") . 'Z</u:Expires>
                      </u:Timestamp>
                      <EncryptedData Id="Assertion0"
                      Type="http://www.w3.org/2001/04/xmlenc#Element"
                      xmlns="http://www.w3.org/2001/04/xmlenc#">
                        <EncryptionMethod Algorithm="http://www.w3.org
+/2001/04/xmlenc#tripledes-cbc">
                        </EncryptionMethod>
                        <ds:KeyInfo xmlns:ds="http://www.w3.org/2000/0
+9/xmldsig#">
                          <EncryptedKey>
                            <EncryptionMethod Algorithm="http://www.w3
+.org/2001/04/xmlenc#rsa-oaep-mgf1p">
                            </EncryptionMethod>
                            <ds:KeyInfo Id="keyinfo">
                              <wsse:SecurityTokenReference xmlns:wsse=
+"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-s
+ecext-1.0.xsd">
                                <wsse:KeyIdentifier EncodingType="http
+://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-secu
+rity-1.0#Base64Binary"
                                ValueType="http://docs.oasis-open.org/
+wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509SubjectKeyIde
+ntifier">
' . $keyidentifier . '
</wsse:KeyIdentifier>
                              </wsse:SecurityTokenReference>
                            </ds:KeyInfo>
                            <CipherData>
                              <CipherValue>
' . $cipher1 . '
</CipherValue>
                            </CipherData>
                          </EncryptedKey>
                        </ds:KeyInfo>
                        <CipherData>
                          <CipherValue>
' . $cipher2 . '
</CipherValue>
                        </CipherData>
                      </EncryptedData>
                    </o:Security>
                  </s:Header>
                  ';

my $retrieveMultipleRequestBodyTemplate ='
  <s:Body>
   <Execute xmlns="http://schemas.microsoft.com/xrm/2011/Contracts/Ser
+vices" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
    <request i:type="b:WhoAmIRequest" xmlns:a="http://schemas.microsof
+t.com/xrm/2011/Contracts" xmlns:b="http://schemas.microsoft.com/crm/2
+011/Contracts">
     <a:Parameters xmlns:c="http://schemas.datacontract.org/2004/07/Sy
+stem.Collections.Generic" />
     <a:RequestId i:nil="true" />
     <a:RequestName>WhoAmI</a:RequestName>
    </request>
   </Execute>
  </s:Body>
            ';
my $envelope_end = ' </s:Envelope>';

($retcode, $response) = curl_request($serviceurl,$envelope_start . $cr
+mSoapRequestHeader . $retrieveMultipleRequestBodyTemplate . $envelope
+_end);
if ($retcode == 0) {
   print("Transfer went ok\n");
   print("Received response: $response\n");
} else {
   print("An error happened: $retcode \n");
   print $envelope_start . $crmSoapRequestHeader . $retrieveMultipleRe
+questBodyTemplate . $envelope_end
}
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