source: trunk/expressoMail1_2/inc/class.dynamic_contacts.inc.php @ 413

<?php
/**********************************************************************************\
        * ExpressoMail1_2                                                                                                  *
        * by Gustavo Sandini Linden (gustavo.linden@serpro.gov.br)                                                 *
        * ---------------------------------------------------------------------------------*
        *  This program is free software; you can redistribute it and/or modify it         *
        *  under the terms of the GNU General Public License as published by the           *
        *  Free Software Foundation; either version 2 of the License, or (at your          *
        *  option) any later version.                                                                                              *
        \**********************************************************************************/
        
$GLOBALS['phpgw_info']['flags'] = array(
                'currentapp' => 'expressoMail1_2',
                'noheader'   => True, 
                'nonavbar'   => True,
                'enable_nextmatchs_class' => True
        );

include('../header.inc.php');
include_once('class.db_functions.inc.php');
include_once('class.functions.inc.php');
        
        /**
         * dynamic_contacts - User's dynamic contact class
         * @package dynamic_contacts
         * @author Gustavo S. Linden
         * @copyright 2008 - Gustavo S. Linden
         * 
         * TODO: Check if email already exists in contactcenter!!
         * 
         */     
        class dynamic_contacts
        {
                public $contacts;
                public $db;
                public $number_of_contacts;
                public $functions; 
                
                /**
        * Constructor
        * 
        */
                function __construct()
                {
                        $this->db = new db_functions();
                        $this->contacts = $this->db->get_dynamic_contacts();
                        $this->number_of_contacts = $_SESSION['phpgw_info']['server']['expressomail']['expressoMail_Number_of_dynamic_contacts'];
                        $this->functions = new functions();
                }
                
                /**
                * get dynamic contacts
                *
                * @return array $contacts The list of fields to be returned. The format is:
                                $contacts = array(
                                        'timestamp' => '1220558565',
                                        'email => 'some@email'
                                );
                */
                function get_dynamic_contacts()
                {
                        return $this->contacts;  
                }
                
                /**
                * get number of contacts
                *
                * @return int $number_of_contacts 
                * maximum number of contact allowed by administration
                * if not set return undefined  
                */
                function get_number_of_contacts()
                {
                        return $this->number_of_contacts;  
                }
        
                /**
                * get dynamic contacts in string format
                *
                * @return string $contact of contacts in format ';some@email,;other@email,'
                * this is used in js/DropDownContacts.js  
                */
                function dynamic_contact_toString()
                {
                        $contact='';
                        if($this->contacts)
                        {
                                foreach($this->contacts as $item => $valor)
                                        $contact .= ';'.$this->contacts[$item]['email'] . ',';
                                //Retira ultima virgula.
                                $contact = substr($contact,0,(strlen($contact) - 1));
                                return $contact;
                        }
                        else
                                return false;
                }
                
                /**
                * add dynamic contacts in database
                *
                * this function runs thru the array and check if the email sent has new contacts
                * or not. If the contact is new, insert new array $contact in array $contacts else
                * search existing contact to update timestamp. 
                *
                * @param string $full_email_address to add eg. 'some@address,other@email,email@address' 
                * @return array $contacts The list of fields to be returned. The format is:
                                $contacts = array(
                                        'timestamp' => '1220558565',
                                        'email => 'some@email'
                                );
                * this is used in inc/class.db_function.inc.php to insert/update in database  
                */
                function add_dynamic_contacts($full_email_address)
                {
                        $parse_address = imap_rfc822_parse_adrlist($full_email_address, "");
                        foreach ($parse_address as $val)
                        {
                                if ($val->mailbox == "INVALID_ADDRESS")
                                        continue;
                                if ($this->contact_exist_in_ContactCenter($val->mailbox."@".$val->host))
                                        continue;
                                        
                                if(!$this->contacts) // Used one time to insert the first contact in database
                                {
                                        $this->db->insert_contact($val->mailbox."@".$val->host);
                                        $this->contacts = $this->db->get_dynamic_contacts();
                                }
                                else
                                {
                                        $older_contact_time=time();
                                        $new_contact_flag = true; // Assume that all email are new in dynamic contact
                                        foreach($this->contacts as $item => $valor)
                                        {
                                                if($this->contacts[$item]['email'] == $val->mailbox."@".$val->host) // check if email already exists
                                                {       
                                                        $this->contacts[$item]['timestamp'] = time(); //update timestamp of email
                                                        $new_contact_flag = false; //email exist!
                                                }
                                                if($this->contacts[$item]['timestamp'] < $older_contact_time) //search for oldest email
                                                        {
                                                                $older_contact = $item; 
                                                                $older_contact_time = $this->contacts[$item]['timestamp'];
                                                        }
                                        }
                                        if ($new_contact_flag == true) //new contact!
                                        {
                                                if($this->number_of_contacts > count($this->contacts))
                                                {
                                                        $this->contacts[] = array( 'timestamp'  => time(),
                                                                                                                'email'         => $val->mailbox."@".$val->host);
                                                }
                                                if($this->number_of_contacts <= count($this->contacts))
                                                {
                                                        $this->contacts[$older_contact] = array( 'timestamp'    => time(),
                                                                                                                                                'email'         => $val->mailbox."@".$val->host);
                                                }
                                        }
                                }
                        }
                        $this->db->update_contacts($this->contacts);
                }
                
                /**
                * Verify if contact exist in ContactCenter
                *
                * this function gets an email and check if the email sent is already on users's personal contacts
                * or not.  
                *
                * @param string $full_email_address to add eg. 'some@address,other@email,email@address' 
                * @return boolean  
                */
                function contact_exist_in_ContactCenter($email)
                {
                        $contactcenter_string = $this->db->get_cc_contacts();
                        $cc_email = explode(",",$contactcenter_string);
                        foreach ($cc_email as $item => $valor) 
                        {
                                $aux = explode(";",$cc_email[$item]);
                                if($email == $aux[1])
                                {
                                        return true;    
                                }
                                  
                        }
                        return false;
                }
                
                /**
                * delete dynamic contacts from database
                *
                * This function removes the dynamic contacts of the current user from the database.
                * It uses inc/class.db_function.inc.php to remove.
                *
                */
                function delete_dynamic_contacts()
                {
                        $this->db->remove_dynamic_contact($this->db->user_id,__LINE__,__FILE__);
                }
        }
?>