CRM-13967 allow additional of anonymous tokens for logged out users when viewing mailing

----------------------------------------
* CRM-13967: Public Mailing View page doesn't render hook tokens
  http://issues.civicrm.org/jira/browse/CRM-13967

CRM/Mailing/Page/View.php

@@ -129,6 +129,16 @@ class CRM_Mailing_Page_View extends CRM_Core_Page {
     }
     else {
       $details = array('test');
+      //get tokens that are not contact specific resolved
+      $params  = array('contact_id' => 0);
+      $details = CRM_Utils_Token::getAnonymousTokenDetails($params,
+        $returnProperties,
+        TRUE, TRUE, NULL,
+        $this->_mailing->getFlattenedTokens(),
+        get_class($this)
+      );
+
+      $details = $details[0][0];
       $contactId = 0;
     }
     $mime = &$this->_mailing->compose(NULL, NULL, NULL, $contactId,

CRM/Utils/Token.php

@@ -1135,6 +1135,39 @@ class CRM_Utils_Token {
     return $details;
   }
 
+  /**
+   * Call hooks on tokens for anonymous users - contact id is set to 0 - this allows non-contact
+   * specific tokens to be rendered
+   *
+   * @param array $contactIDs - this should always be array(0) or its not anonymous - left to keep signature same
+   * as main fn
+   * @param string $returnProperties
+   * @param boolean $skipOnHold
+   * @param boolean $skipDeceased
+   * @param string $extraParams
+   * @param array $tokens
+   * @param string $className sent as context to the hook
+   * @param string $jobID
+   * @return array contactDetails with hooks swapped out
+   */
+  function getAnonymousTokenDetails($contactIDs = array(0),
+    $returnProperties = NULL,
+    $skipOnHold       = TRUE,
+    $skipDeceased     = TRUE,
+    $extraParams      = NULL,
+    $tokens           = array(),
+    $className        = NULL,
+    $jobID            = NULL) {
+    $details = array(0 => array());
+      // also call a hook and get token details
+      CRM_Utils_Hook::tokenValues($details[0],
+      $contactIDs,
+      $jobID,
+      $tokens,
+      $className
+    );
+    return $details;
+  }
   /**
    * gives required details of contribuion in an indexed array format so we
    * can iterate in a nice loop and do token evaluation