From d77a93709b15e7928b774c7c0ffa9d3f369c437f Mon Sep 17 00:00:00 2001
From: Kijin Sung <kijin@kijinsung.com>
Date: Wed, 2 Dec 2020 00:35:45 +0900
Subject: [PATCH] Add SMS driver for iwinv.kr

https://www.iwinv.kr/account/sms.html
---
 common/framework/drivers/sms/iwinv.php | 149 +++++++++++++++++++++++++
 1 file changed, 149 insertions(+)
 create mode 100644 common/framework/drivers/sms/iwinv.php

diff --git a/common/framework/drivers/sms/iwinv.php b/common/framework/drivers/sms/iwinv.php
new file mode 100644
index 000000000..88ddfae82
--- /dev/null
+++ b/common/framework/drivers/sms/iwinv.php
@@ -0,0 +1,149 @@
+<?php
+
+namespace Rhymix\Framework\Drivers\SMS;
+
+/**
+ * The iwinv SMS driver.
+ */
+class iwinv extends Base implements \Rhymix\Framework\Drivers\SMSInterface
+{
+	/**
+	 * API endpoint URL.
+	 */
+	const API_URL = 'https://sms.service.iwinv.kr/send/';
+	
+	/**
+	 * API specifications.
+	 */
+	protected static $_spec = array(
+		'max_recipients'              => 1000,
+		'sms_max_length'              => 90,
+		'sms_max_length_in_charset'   => 'CP949',
+		'lms_supported'               => true,
+		'lms_supported_country_codes' => array(82),
+		'lms_max_length'              => 2000,
+		'lms_max_length_in_charset'   => 'CP949',
+		'lms_subject_supported'       => true,
+		'lms_subject_max_length'      => 40,
+		'mms_supported'               => true,
+		'mms_supported_country_codes' => array(82),
+		'mms_max_length'              => 2000,
+		'mms_max_length_in_charset'   => 'CP949',
+		'mms_subject_supported'       => true,
+		'mms_subject_max_length'      => 40,
+		'image_allowed_types'         => array('jpg'),
+		'image_max_dimensions'        => array(2048, 2048),
+		'image_max_filesize'          => 100000,
+		'delay_supported'             => true,
+	);
+
+	/**
+	 * Config keys used by this driver are stored here.
+	 */
+	protected static $_required_config = array('api_key', 'api_secret');
+	protected static $_optional_config = array();
+
+	/**
+	 * Check if the current SMS driver is supported on this server.
+	 *
+	 * This method returns true on success and false on failure.
+	 *
+	 * @return bool
+	 */
+	public static function isSupported()
+	{
+		return true;
+	}
+
+	/**
+	 * Send a message.
+	 *
+	 * This method returns true on success and false on failure.
+	 *
+	 * @param array $messages
+	 * @param object $original
+	 * @return bool
+	 */
+	public function send(array $messages, \Rhymix\Framework\SMS $original)
+	{
+		$status = true;
+		$curl = null;
+		
+		foreach ($messages as $i => $message)
+		{
+			// Authentication
+			$headers = array(
+				'Content-Type: multipart/form-data',
+				'secret: ' . base64_encode($this->_config['api_key'] . '&' . $this->_config['api_secret']),
+			);
+			
+			// Sender and recipient
+			$data = array();
+			$data['from'] = str_replace('-', '', \Rhymix\Framework\Korea::formatPhoneNumber($message->from));
+			$data['to'] = array_map(function($num) {
+				return str_replace('-', '', \Rhymix\Framework\Korea::formatPhoneNumber($num));
+			}, $message->to);
+			if (count($data['to']) === 1)
+			{
+				$data['to'] = array_first($data['to']);
+			}
+			
+			// Subject and content
+			if ($message->type === 'LMS' && $message->subject)
+			{
+				$data['title'] = $message->subject;
+			}
+			$data['text'] = $message->content;
+			
+			// Image attachment
+			if ($message->image)
+			{
+				$data['image'] = curl_file_create(realpath($message->image));
+			}
+			
+			// Set delay
+			if ($message->delay && $message->delay > time() + 900)
+			{
+				$data['date'] = gmdate('Y-m-d H:i:s', $message->delay + (3600 * 9));
+			}
+			
+			// We need to use curl because Filehandler::getRemoteResource() doesn't work with this API for some reason.
+			if (!$curl)
+			{
+				$curl = curl_init();
+			}
+			curl_setopt($curl, \CURLOPT_URL, self::API_URL);
+			curl_setopt($curl, \CURLOPT_TIMEOUT, 5);
+			curl_setopt($curl, \CURLOPT_POST, 1);
+			curl_setopt($curl, \CURLOPT_RETURNTRANSFER, 1);
+			curl_setopt($curl, \CURLOPT_POSTFIELDS, $data);
+			curl_setopt($curl, \CURLOPT_HTTPHEADER, $headers);
+			$result = curl_exec($curl);
+			$err = curl_error($curl);
+			
+			// Check the result.
+			if ($err)
+			{
+				$original->addError('API error while sending message ' . ($i + 1) . ' of ' . count($messages) . ': ' . $err);
+				$status = false;
+			}
+			elseif (trim($result) === '')
+			{
+				$original->addError('Unknown API error while sending message ' . ($i + 1) . ' of ' . count($messages));
+				$status = false;
+			}
+			elseif (trim($result) !== '00')
+			{
+				$original->addError('API error ' . trim($result) . ' while sending message ' . ($i + 1) . ' of ' . count($messages));
+				$status = false;
+			}
+		}
+		
+		if ($curl)
+		{
+			@curl_close($curl);
+		}
+		
+		return $status;
+	}
+}