actions/email_opt_out.php

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<?php
class actions_email_opt_out {
        const ADDRESS_NOT_FOUND = 8404;
        const ADDRESS_ALREADY_FOUND = 8300;
        

        function handle(&$params){
                $app = Dataface_Application::getInstance();
                $query = $app->getQuery();
                
                if ( @$_POST['--opt-in'] ){
                        // The user wants to opt in to the list
                        
                        $this->optIn(@$_POST['--email-id']);
                        
                        
                } else if ( @$_POST['--opt-out'] ){
                        // The user wants to opt out of the list
                        $this->optOut(@$_POST['--email-id']);
                
                } else {
                        // Display the form
                        
                        
                        
                        $mod = Dataface_ModuleTool::getInstance()->loadModule('modules_Email');
                        $mod->addPaths();
                        Dataface_JavascriptTool::getInstance()->import('xataface/modules/Email/email_opt_out.js');
                        $addr = $this->getEmailAddressFromId($query['email']);
                        if ( !@$query['email'] or !$addr){
                                // No email ID was provided ... Display error
                                df_display(array(), 'xataface/modules/email/email_opt_out_error.html');
                        
                        } else {
                                $context = array('emailId'=>$query['email'], 'emailAddress'=> $addr);
                                
                                if ( $this->checkBlackList($query['email']) ){
                                        //echo "Blacklisted";
                                        $context['currentlyBlackListed'] = 1;
                                } else {
                                        //echo "Not blacklisted";
                                        $context['currentlyBlackListed'] = 0;
                                }
                                df_display($context, 'xataface/modules/email/email_opt_out.html');
                                
                        }
                                
                }
                
                
        }
        
        
        function optIn($emailId){
        
                try {
                        if ( $this->checkBlackList($emailId) ){
                                $addr = $this->getEmailAddressFromId($emailId);
                                df_q("delete from dataface__email_blacklist where email='".addslashes($addr)."'");
                                
                                $this->out(array(
                                        'code' => 200,
                                        'message' => 'Opt-in successful.  Thank you for your participation.'
                                ));
                        } else {
                                throw new Exception('You have already opted into our mail list and should be able to receive our mailouts.', self::ADDRESS_NOT_FOUND);
                                
                        }
                        
                
                } catch (Exception $ex){
                
                        if ( $ex->getCode() > 8000 and $ex->getCode() < 9000 ){
                                $this->out(array(
                                        'code' => intval($ex->getCode()-8000),
                                        'message' => $ex->getMessage()
                                ));
                        }
                
                }
        
        }
        
        
        function optOut($emailId){
                error_log("Opting out $emailId");
                try {
                        if ( !$this->checkBlackList($emailId) ){
                                $addr = $this->getEmailAddressFromId($emailId);
                                df_q("insert into  dataface__email_blacklist (email) values ('".addslashes($addr)."')");
                                
                                $this->out(array(
                                        'code' => 200,
                                        'message' => 'Opt-out successful.  You will no longer receive emails from us.'
                                ));
                        } else {
                                throw new Exception('You have already opted out.  You should no longer receive any email from us.', self::ADDRESS_ALREADY_FOUND);
                                
                        }
                        
                
                } catch (Exception $ex){
                
                        if ( $ex->getCode() > 8000 and $ex->getCode() < 9000 ){
                                $this->out(array(
                                        'code' => intval($ex->getCode()-8000),
                                        'message' => $ex->getMessage()
                                ));
                        }
                
                }
        }
        
        
        function getEmailAddressFromId($emailId){
                $res = df_q("select recipient_email from xataface__email_log where `uniqid`='".addslashes($emailId)."'");
                if ( mysql_num_rows($res) == 0 ) return null;
                list($addr) = mysql_fetch_row($res);
                @mysql_free_result($res);
                return $addr;
                
                
        }
        
        
        function checkBlackList($emailId){
                $addr = $this->getEmailAddressFromId($emailId);
                
                $res = df_q("select email from dataface__email_blacklist where `email`='".addslashes($addr)."' limit 1");
                if ( mysql_num_rows($res) == 0 ){
                        @mysql_free_result($res);
                        return false;
                } else {
                        @mysql_free_result($res);
                        return true;
                }
        
        }
        
        function out($out){
                header('Content-type: text/json; charset="'.Dataface_Application::getInstance()->_conf['oe'].'"');
                echo json_encode($out);
        }
}