<?php

/**
 * DNS 
 * 
 * TODO: Too many "if" statements. Code should be refactored in order to not use a lot of "if" conditions
 * 
 * @author vesta, http://vestacp.com/
 * @author Dmitry Malishev <dima.malishev@gmail.com>
 * @author Dmitry Naumov-Socolov <naumov.socolov@gmail.com>
 * @copyright vesta 2010-2011
 */
 
class DNS extends AjaxHandler 
{

    /**
     * Get DNS entries
     * 
     * @param Request $request
     * @return string - Ajax Reply
     */
    public function getListExecute($request) 
    {
        $_user = 'vesta';
        $reply = array();
        $result = Vesta::execute(Vesta::V_LIST_DNS_DOMAINS, array($_user, Config::get('response_type')));
        foreach ($result['data'] as $dns_domain => $details) {
            $reply[] = array(
                         'DNS_DOMAIN'   => $dns_domain,
                         'IP'           => $details['IP'],
                         'TPL'          => $details['TPL'],
                         'TTL'          => $details['TTL'],
                         'EXP'          => $details['EXP'],
                         'SOA'          => $details['SOA'],
                         'SUSPEND'      => $details['SUSPEND'],
                         'DATE'         => date(Config::get('ui_date_format', strtotime($details['DATE'])))
                      );
        }
        
        if (!$result['status']) {
            $this->errors[] = array($result['error_code'] => $result['error_message']);
        }
     
        return $this->reply($result['status'], $reply);
    }
    
    /**
     * Get DNS records
     * 
     * @param Request $request
     * @return string - Ajax Reply
     */
    public function getListRecordsExecute($request) 
    {
        $r      = new Request();
        $_s     = $r->getSpell();
        $_user  = 'vesta';
        $reply  = array();
       
        $result = Vesta::execute(Vesta::V_LIST_DNS_DOMAIN_RECORDS, array($_user, $_s['DNS_DOMAIN'], Config::get('response_type')));
        foreach ($result['data'] as $record_id => $details) {
            $reply[$record_id] = array(
                                     'RECORD_ID' => $record_id,
                                     'RECORD' => $details['RECORD'],
                                     'RECORD_TYPE' => $details['TYPE'],
                                     'RECORD_VALUE' => $details['VALUE'],
                                     'SUSPEND' => $details['SUSPEND'],
                                     'DATE' => date(Config::get('ui_date_format', strtotime($details['DATE'])))
                                  );
        }

        if (!$result['status']) {
            $this->errors[] = array($result['error_code'] => $result['error_message']);
        }
     
        return $this->reply($result['status'], $reply);
    }

    /**
     * Add DB entry
     * 
     * v_add_dns_domain user domain ip [template] [exp] [soa] [ttl]
     * http://95.163.16.160:8083/dispatch.php?jedi_method=DNS.add&USER=vesta&DOMAIN=dev.vestacp.com&IP_ADDRESS=95.163.16.160&TEMPLATE=default&EXP=01-01-12&SOA=ns1.vestacp.com&TTL=3600
     * 
     * @param Request $request
     * @return string - Ajax Reply
     */
    public function addExecute($_spell = false) 
    {
        $r = new Request();
        if ($_spell) {
            $_s = $_spell;
        }
        else {
            $_s = $r->getSpell();
        }

        $_user = 'vesta';
	    $params = array(
                    'USER' => $_user,  /// OWNER ???
                    'DNS_DOMAIN' => $_s['DNS_DOMAIN'],
                    'IP' => $_s['IP']
                  );
        // TODO: rewrite this block. Get away from if/if/if/if
        if ($_s['TPL']) {
            $params['TPL'] = $_s['TPL'];
        }
        if ($_s['EXP']) {
            $params['EXP'] = $_s['EXP'];
        }
        if ($_s['SOA']) {
            $params['SOA'] = $_s['SOA'];
        }
        if ($_s['TTL']) {
            $params['TTL'] = $_s['TTL'];
        }
	
        $result = Vesta::execute(Vesta::V_ADD_DNS_DOMAIN, $params);
        if (!$result['status']) {
            $this->errors[] = array($result['error_code'] => $result['error_message']);
        }

        return $this->reply($result['status'], $result['data']);
    }

    /**
     * Add DNS record
     * 
     * v_add_dns_domain_record user domain record type value [id]
     * http://95.163.16.160:8083/dispatch.php?jedi_method=DNS.addRecord&USER=vesta&DOMAIN=dev.vestacp.com&RECORD=ftp&TYPE=a&VALUE=87.248.190.222
     * 
     * @param Request $request
     * @return string - Ajax Reply
     */
     public function addRecordExecute($request) 
     {
        $r = new Request();
        $_s = $r->getSpell();
        $_user = 'vesta';

        $params = array(
                    'USER' => $_s['USER'],  /// OWNER ???
                    'DOMAIN' => $_s['DOMAIN'],
                    'RECORD' => $_s['RECORD'],
                    'RECORD_TYPE' => $_s['TYPE'],
                    'RECORD_VALUE' => $_s['VALUE'],
                    'RECORD_ID' => $_s['RECORD_ID']
                  );
        
        $result = Vesta::execute(Vesta::V_ADD_DNS_DOMAIN_RECORD, $params);
 	
        if (!$result['status']) {
            $this->errors[] = array($result['error_code'] => $result['error_message']);
        }

        return $this->reply($result['status'], $result['data']);
    }

    /**
     * Delete DNS entry
     * 
     * v_del_dns_domain user domain
     * http://95.163.16.160:8083/dispatch.php?jedi_method=DNS.del&USER=vesta&DOMAIN=dev.vestacp.com
     * 
     * @param Request $request
     * @return string - Ajax Reply
     */
    public function delExecute($_spell = false) 
    {
        $r = new Request();
        if ($_spell) {
            $_s = $_spell;
        }
        else {
            $_s = $r->getSpell();
        }
      
        $_user = 'vesta';
	    $params = array(
                    'USER' => $_user,  /// OWNER ???
                    'DOMAIN' => $_s['DNS_DOMAIN'],
                  );
	
        $result = Vesta::execute(Vesta::V_DEL_DNS_DOMAIN, $params);

        if (!$result['status']) {
            $this->errors[] = array($result['error_code'] => $result['error_message']);
        }

        return $this->reply($result['status'], $result['data']);
    }

    /**
     * Add DNS record
     * 
     * v_del_dns_domain_record user domain id 
     * http://95.163.16.160:8083/dispatch.php?jedi_method=DNS.delRecord&USER=vesta&DOMAIN=dev.vestacp.com&RECORD_ID=9
     * 
     * @param Request $request
     * @return string - Ajax Reply
     */
    public function delRecordExecute($request) 
    {
        $r = new Request();
        $_s = $r->getSpell();
        $_user = 'vesta';
	
        $params = array(
                    'USER'      => $_user,  // TODO: OWNER ???
                    'DOMAIN'    => $_s['DOMAIN'],
                    'RECORD_ID' => $_s['RECORD_ID']
                  );
	
        $result = Vesta::execute(Vesta::V_DEL_DNS_DOMAIN_RECORD, $params);
 	
        if (!$result['status']) {
            $this->errors[] = array($result['error_code'] => $result['error_message']);
        }

        return $this->reply($result['status'], $result['data']);
    }

    /**
     * Change DNS entry
     * 
     * TODO: get away from multiple "if" statements
     * 
     * DNS.change&spell={"old":{"DNS_DOMAIN": "dev.vestacp.com","IP": "95.163.16.160","TPL": "default","TTL": "3377","EXP": "12-12-12","SOA": "ns2.vestacp.com"},"new":{"DNS_DOMAIN": "dev.vestacp.com","IP": "95.163.16.160","TPL": "default","TTL": "3600","EXP": "02-02-12","SOA": "ns1.vestacp.com"}}
     * 
     * @param Request $request
     * @return string - Ajax Reply
     */
    public function changeExecute($request)
    {
        $r           = new Request();
        $_s          = $r->getSpell();
        $_old        = $_s['old'];
        $_new        = $_s['new'];
        $_user       = 'vesta';
        $_DNS_DOMAIN = $_new['DNS_DOMAIN'];

	 
        if ($_old['IP'] != $_new['IP']) {
            $result = array();
            
            $result = Vesta::execute(Vesta::V_CHANGE_DNS_DOMAIN_IP, array('USER' => $_user, 'DNS_DOMAIN' => $_DNS_DOMAIN, 'IP' => $_new['IP']));
            if (!$result['status']) {
                $this->status = FALSE;
                $this->errors['IP_ADDRESS'] = array($result['error_code'] => $result['error_message']);
            }
        }
	
        if ($_old['TPL'] != $_new['TPL']) {
            $result = array();
            $result = Vesta::execute(Vesta::V_CHANGE_DNS_DOMAIN_TPL, array('USER' => $_user, 'DNS_DOMAIN' => $_DNS_DOMAIN, 'IP' => $_new['TPL']));
            if (!$result['status']) {
                $this->status = FALSE;
                $this->errors['TPL'] = array($result['error_code'] => $result['error_message']);
            }
        }
	
        if ($_old['TTL'] != $_new['TTL']) {
            $result = array();
            $result = Vesta::execute(Vesta::V_CHANGE_DNS_DOMAIN_TTL, array('USER' => $_user, 'DNS_DOMAIN' => $_DNS_DOMAIN, 'IP' => $_new['TTL']));
            if (!$result['status']) {
                $this->status = FALSE;
                $this->errors['TTL'] = array($result['error_code'] => $result['error_message']);
            }
        }

        if ($_old['EXP'] != $_new['EXP']) {
            $result = array();
            $result = Vesta::execute(Vesta::V_CHANGE_DNS_DOMAIN_EXP, array('USER' => $_user, 'DNS_DOMAIN' => $_DNS_DOMAIN, 'IP' => $_new['EXP']));
            if (!$result['status']) {
                $this->status = FALSE;
                $this->errors['EXP'] = array($result['error_code'] => $result['error_message']);
            }
        }
	
        if ($_old['SOA'] != $_new['SOA']) {
            $result = array();
            $result = Vesta::execute(Vesta::V_CHANGE_DNS_DOMAIN_SOA, array('USER' => $_user, 'DNS_DOMAIN' => $_new['DNS_DOMAIN'], 'IP' => $_new['SOA']));
            if (!$result['status']) {
                $this->status = FALSE;
                $this->errors['SOA'] = array($result['error_code'] => $result['error_message']);
            }
        }

	    if (!$this->status) {
            Vesta::execute(Vesta::V_CHANGE_DNS_DOMAIN_IP,  array('USER' => $_user, 'DNS_DOMAIN' => $_DNS_DOMAIN, 'IP' => $_old['IP']));
            Vesta::execute(Vesta::V_CHANGE_DNS_DOMAIN_TPL, array('USER' => $_user, 'DNS_DOMAIN' => $_DNS_DOMAIN, 'IP' => $_old['TPL']));
            Vesta::execute(Vesta::V_CHANGE_DNS_DOMAIN_TTL, array('USER' => $_user, 'DNS_DOMAIN' => $_DNS_DOMAIN, 'IP' => $_old['TTL']));
            Vesta::execute(Vesta::V_CHANGE_DNS_DOMAIN_EXP, array('USER' => $_user, 'DNS_DOMAIN' => $_DNS_DOMAIN, 'IP' => $_old['EXP']));
            Vesta::execute(Vesta::V_CHANGE_DNS_DOMAIN_SOA, array('USER' => $_user, 'DNS_DOMAIN' => $_new['DNS_DOMAIN'], 'IP' => $_old['SOA']));
        }

        return $this->reply($this->status, '');
    }

    /**
     * Change DNS record
     * 
     * @param Request $request
     * @return string - Ajax Reply
     */ 
    public function changeRecordsExecute($request)
    {
        $r           = new Request();
        $_s          = $r->getSpell();
        $_old        = $_s['old'];
        $_new        = $_s['new'];
        $_user       = 'vesta';
        $_DNS_DOMAIN = $_s['DNS_DOMAIN'];

        foreach ($_new as $record_id => $record_data) {
            // checking if record existed - update
            if (is_array($_old[$record_id])) {
                $result = Vesta::execute(Vesta::V_CHANGE_DNS_DOMAIN_RECORD, 
                                         array(
                                            'USER'       => $_user, 
                                            'DNS_DOMAIN' => $_DNS_DOMAIN, 
                                            'ID'         => $record_id, 
                                            'RECORD'     => $record_data['RECORD'], 
                                            'TYPE'       => $record_data['RECORD_TYPE'], 
                                            'VALUE'      => $record_data['RECORD_VALUE']
                                         ));
                if (!$result['status']) {
                    $this->status = FALSE;
                    $this->errors[$record_id] = array($result['error_code'] => $result['error_message']);
                }
            }
            else {
                $result = Vesta::execute(Vesta::V_ADD_DNS_DOMAIN_RECORD, array('USER' => $_user, 'DNS_DOMAIN' => $_DNS_DOMAIN, 'RECORD' => $record_data['RECORD'], 'TYPE' => $record_data['RECORD_TYPE'], 'VALUE' => $record_data['RECORD_VALUE'], 'ID' => $record_id));
                if (!$result['status']) {
                    $this->status = FALSE;
                    $this->errors[$record_id] = array($result['error_code'] => $result['error_message']);
                }
            }

            unset($_old[$record_id]);
        }

        // in $_old have remained only record that do not present in new - so they have to be deleted
        foreach ($_old as $record_id => $record_data) {
            /*
            $result = Vesta::execute(Vesta::V_DEL_DNS_DOMAIN_RECORD, array('USER' => $_user, 'DNS_DOMAIN' => $_DNS_DOMAIN, 'ID' => $record_id,));
            if (!$result['status']) {
                $this->status = FALSE;
                $this->errors[$record_id] = array($result['error_code'] => $result['error_message']);
            }
            */
        }

        return $this->reply($this->status, '');
    }
}