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openemr/modules/sms_email_reminder/sms_clickatell.php

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<?php
/**
* CLICKATELL SMS API
*
* This class is meant to send SMS messages (with unicode support) via
* the Clickatell gateway and provides support to authenticate to this service,
* spending an vouchers and also query for the current account balance. This class
* use the fopen or CURL module to communicate with the gateway via HTTP/S.
*
* For more information about CLICKATELL service visit http://www.clickatell.com
*
* @version 1.6
* @package sms_api
* @author Aleksandar Markovic <mikikg@gmail.com>
* @copyright Copyright (c) 2004 - 2007 Aleksandar Markovic
* @link http://sourceforge.net/projects/sms-api/ SMS-API Sourceforge project page
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
*
*/
/**
* Main SMS-API class
*
* Example:
* <code>
* <?php
* require_once ("sms_api.php");
* $mysms = new sms();
* echo $mysms->session;
* echo $mysms->getbalance();
* // $mysms->token_pay("1234567890123456"); //spend voucher with SMS credits
* $mysms->send ("38160123", "netsector", "TEST MESSAGE");
* </code>
* @package sms_api
*/
class sms
{
/**
* Clickatell API-ID
* @link http://sourceforge.net/forum/forum.php?thread_id=1005106&forum_id=344522 How to get CLICKATELL API ID?
* @var integer
*/
var $api_id = "YOUR_CLICKATELL_API_NUMBER";
/**
* Clickatell username
* @var mixed
*/
var $user = "YOUR_CLICKATELL_USERNAME";
/**
* Clickatell password
* @var mixed
*/
var $password = "YOUR_CLICKATELL_PASSWORD";
/**
* Use SSL (HTTPS) protocol
* @var bool
*/
var $use_ssl = false;
/**
* Define SMS balance limit below class will not work
* @var integer
*/
var $balace_limit = 0;
/**
* Gateway command sending method (curl,fopen)
* @var mixed
*/
var $sending_method = "fopen";
/**
* Does to use facility for delivering Unicode messages
* @var bool
*/
var $unicode = false;
/**
* Optional CURL Proxy
* @var bool
*/
var $curl_use_proxy = false;
/**
* Proxy URL and PORT
* @var mixed
*/
var $curl_proxy = "http://127.0.0.1:8080";
/**
* Proxy username and password
* @var mixed
*/
var $curl_proxyuserpwd = "login:secretpass";
/**
* Callback
* 0 - Off
* 1 - Returns only intermediate statuses
* 2 - Returns only final statuses
* 3 - Returns both intermediate and final statuses
* @var integer
*/
var $callback = 0;
/**
* Session variable
* @var mixed
*/
var $session;
/**
* Class constructor
* Create SMS object and authenticate SMS gateway
* @return object New SMS object.
* @access public
*/
function __construct()
{
if ($this->use_ssl) {
$this->base = "http://api.clickatell.com/http";
$this->base_s = "https://api.clickatell.com/http";
} else {
$this->base = "http://api.clickatell.com/http";
$this->base_s = $this->base;
}
$this->_auth();
}
/**
* Authenticate SMS gateway
* @return mixed "OK" or script die
* @access private
*/
function _auth()
{
$comm = sprintf("%s/auth?api_id=%s&user=%s&password=%s", $this->base_s, $this->api_id, $this->user, $this->password);
$this->session = $this->_parse_auth($this->_execgw($comm));
}
/**
* Query SMS credis balance
* @return integer number of SMS credits
* @access public
*/
function getbalance()
{
$comm = sprintf("%s/getbalance?session_id=%s", $this->base, $this->session);
return $this->_parse_getbalance($this->_execgw($comm));
}
/**
* Send SMS message
* @param to mixed The destination address.
* @param from mixed The source/sender address
* @param text mixed The text content of the message
* @return mixed "OK" or script die
* @access public
*/
function send($to = null, $from = null, $text = null)
{
/* Check SMS credits balance */
if ($this->getbalance() < $this->balace_limit) {
die("You have reach the SMS credit limit!");
};
/* Check SMS $text length */
if ($this->unicode == true) {
$this->_chk_mbstring();
if (mb_strlen($text) > 210) {
die("Your unicode message is too long! (Current lenght=" . mb_strlen($text) . ")");
}
/* Does message need to be concatenate */
if (mb_strlen($text) > 70) {
$concat = "&concat=3";
} else {
$concat = "";
}
} else {
if (strlen($text) > 459) {
die("Your message is too long! (Current lenght=" . strlen($text) . ")");
}
/* Does message need to be concatenate */
if (strlen($text) > 160) {
$concat = "&concat=3";
} else {
$concat = "";
}
}
/* Check $to and $from is not empty */
if (empty($to)) {
die("You not specify destination address (TO)!");
}
if (empty($from)) {
die("You not specify source address (FROM)!");
}
/* Reformat $to number */
$cleanup_chr = array ("+", " ", "(", ")", "\r", "\n", "\r\n");
$to = str_replace($cleanup_chr, "", $to);
/* Send SMS now */
$comm = sprintf(
"%s/sendmsg?session_id=%s&to=%s&from=%s&text=%s&callback=%s&unicode=%s%s",
$this->base,
$this->session,
rawurlencode($to),
rawurlencode($from),
$this->encode_message($text),
$this->callback,
$this->unicode,
$concat
);
return $this->_parse_send($this->_execgw($comm));
}
/**
* Encode message text according to required standard
* @param text mixed Input text of message.
* @return mixed Return encoded text of message.
* @access public
*/
function encode_message($text)
{
if ($this->unicode != true) {
//standard encoding
return rawurlencode($text);
} else {
//unicode encoding
$uni_text_len = mb_strlen($text, "UTF-8");
$out_text = "";
//encode each character in text
for ($i = 0; $i < $uni_text_len; $i++) {
$out_text .= $this->uniord(mb_substr($text, $i, 1, "UTF-8"));
}
return $out_text;
}
}
/**
* Unicode function replacement for ord()
* @param c mixed Unicode character.
* @return mixed Return HEX value (with leading zero) of unicode character.
* @access public
*/
function uniord($c)
{
$ud = 0;
if (ord($c[0]) >= 0 && ord($c[0]) <= 127) {
$ud = ord($c[0]);
}
if (ord($c[0]) >= 192 && ord($c[0]) <= 223) {
$ud = (ord($c[0]) - 192) * 64 + (ord($c[1]) - 128);
}
if (ord($c[0]) >= 224 && ord($c[0]) <= 239) {
$ud = (ord($c[0]) - 224) * 4096 + (ord($c[1]) - 128) * 64 + (ord($c[2]) - 128);
}
if (ord($c[0]) >= 240 && ord($c[0]) <= 247) {
$ud = (ord($c[0]) - 240) * 262144 + (ord($c[1]) - 128) * 4096 + (ord($c[2]) - 128) * 64 + (ord($c[3]) - 128);
}
if (ord($c[0]) >= 248 && ord($c[0]) <= 251) {
$ud = (ord($c[0]) - 248) * 16777216 + (ord($c[1]) - 128) * 262144 + (ord($c[2]) - 128) * 4096 + (ord($c[3]) - 128) * 64 + (ord($c[4]) - 128);
}
if (ord($c[0]) >= 252 && ord($c[0]) <= 253) {
$ud = (ord($c[0]) - 252) * 1073741824 + (ord($c[1]) - 128) * 16777216 + (ord($c[2]) - 128) * 262144 + (ord($c[3]) - 128) * 4096 + (ord($c[4]) - 128) * 64 + (ord($c[5]) - 128);
}
if (ord($c[0]) >= 254 && ord($c[0]) <= 255) { //error
$ud = false;
}
return sprintf("%04x", $ud);
}
/**
* Spend voucher with sms credits
* @param token mixed The 16 character voucher number.
* @return mixed Status code
* @access public
*/
function token_pay($token)
{
$comm = sprintf(
"%s/http/token_pay?session_id=%s&token=%s",
$this->base,
$this->session,
$token
);
return $this->_execgw($comm);
}
/**
* Execute gateway commands
* @access private
*/
function _execgw($command)
{
if ($this->sending_method == "curl") {
return $this->_curl($command);
}
if ($this->sending_method == "fopen") {
return $this->_fopen($command);
}
die("Unsupported sending method!");
}
/**
* CURL sending method
* @access private
*/
function _curl($command)
{
$this->_chk_curl();
$ch = curl_init($command);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
if ($this->curl_use_proxy) {
curl_setopt($ch, CURLOPT_PROXY, $this->curl_proxy);
curl_setopt($ch, CURLOPT_PROXYUSERPWD, $this->curl_proxyuserpwd);
}
$result = curl_exec($ch);
curl_close($ch);
return $result;
}
/**
* fopen sending method
* @access private
*/
function _fopen($command)
{
$result = '';
$handler = @fopen($command, 'r');
if ($handler) {
while ($line = @fgets($handler, 1024)) {
$result .= $line;
}
fclose($handler);
return $result;
} else {
die("Error while executing fopen sending method!<br />Please check does PHP have OpenSSL support and check does PHP version is greater than 4.3.0.");
}
}
/**
* Parse authentication command response text
* @access private
*/
function _parse_auth($result)
{
$session = substr($result, 4);
$code = substr($result, 0, 2);
if ($code != "OK") {
die("Error in SMS authorization! (" . text($result) . ")");
}
return $session;
}
/**
* Parse send command response text
* @access private
*/
function _parse_send($result)
{
$code = substr($result, 0, 2);
if ($code != "ID") {
die("Error sending SMS! (" . text($result) . ")");
} else {
$code = "OK";
}
return $code;
}
/**
* Parse getbalance command response text
* @access private
*/
function _parse_getbalance($result)
{
$result = substr($result, 8);
return (int)$result;
}
/**
* Check for CURL PHP module
* @access private
*/
function _chk_curl()
{
if (!extension_loaded('curl')) {
die("This SMS API class can not work without CURL PHP module! Try using fopen sending method.");
}
}
/**
* Check for Multibyte String Functions PHP module - mbstring
* @access private
*/
function _chk_mbstring()
{
if (!extension_loaded('mbstring')) {
die("Error. This SMS API class is setup to use Multibyte String Functions module - mbstring, but module not found. Please try to set unicode=false in class or install mbstring module into PHP.");
}
}
}