<?php
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namespace app\common\service;
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use think\facade\Config;
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class YouDaoTrans {
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private $app_key;
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private $sec_key;
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private $trans_url;
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public function __construct($options = array()) {
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$this->app_key = isset($options['app_key']) ? $options['app_key'] : Config::get('youdao.app_key');
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$this->sec_key = isset($options['sec_key']) ? $options['sec_key'] : Config::get('youdao.sec_key');
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$this->trans_url = isset($options['trans_url']) ? $options['trans_url'] : Config::get('youdao.trans_url');
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}
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public function do_translate($q, $from, $to) {
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$salt = YouDaoTrans::create_guid();
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$args = array(
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'q' => $q,
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'appKey' => $this->app_key,
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'salt' => $salt,
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);
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$args['from'] = $from;
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$args['to'] = $to;
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$args['signType'] = 'v3';
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$curtime = strtotime("now");
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$args['curtime'] = $curtime;
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$signStr = $this->app_key . YouDaoTrans::truncate(implode("", $q)) . $salt . $curtime . $this->sec_key;
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$args['sign'] = hash("sha256", $signStr);
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$args['vocabId'] = '0';
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$ret = YouDaoTrans::call($this->trans_url, $args);
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return $ret;
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}
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// 发起网络请求
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public static function call($url, $args = NULL, $method = "post", $testflag = 0, $timeout = 2000, $headers = array()) {
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$ret = FALSE;
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$i = 0;
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while ($ret === FALSE) {
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if ($i > 1)
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break;
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if ($i > 0) {
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sleep(1);
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}
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$ret = YouDaoTrans::callOnce($url, $args, $method, FALSE, $timeout, $headers);
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$i++;
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}
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return $ret;
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}
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public static function callOnce($url, $args = NULL, $method = "post", $withCookie = FALSE, $timeout = 2000, $headers = array()) {
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$ch = curl_init();
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if ($method == "post") {
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$data = YouDaoTrans::convert($args);
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curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
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curl_setopt($ch, CURLOPT_POST, 1);
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} else {
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$data = YouDaoTrans::convert($args);
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if ($data) {
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if (stripos($url, "?") > 0) {
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$url .= "&$data";
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} else {
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$url .= "?$data";
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}
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}
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}
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curl_setopt($ch, CURLOPT_URL, $url);
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curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
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if (!empty($headers)) {
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curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
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}
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if ($withCookie) {
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curl_setopt($ch, CURLOPT_COOKIEJAR, $_COOKIE);
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}
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$r = curl_exec($ch);
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curl_close($ch);
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return $r;
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}
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public static function convert(&$args) {
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$data = '';
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if (is_array($args)) {
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foreach ($args as $key => $val) {
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if (is_array($val)) {
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foreach ($val as $k => $v) {
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$data .= 'q=' . rawurlencode($v) . '&';
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}
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} else {
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$data .= "$key=" . rawurlencode($val) . "&";
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}
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}
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return trim($data, "&");
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}
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return $args;
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}
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// uuid generator
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public static function create_guid() {
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$microTime = microtime();
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list($a_dec, $a_sec) = explode(" ", $microTime);
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$dec_hex = dechex($a_dec * 1000000);
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$sec_hex = dechex($a_sec);
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YouDaoTrans::ensure_length($dec_hex, 5);
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YouDaoTrans::ensure_length($sec_hex, 6);
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$guid = "";
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$guid .= $dec_hex;
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$guid .= YouDaoTrans::create_guid_section(3);
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$guid .= '-';
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$guid .= YouDaoTrans::create_guid_section(4);
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$guid .= '-';
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$guid .= YouDaoTrans::create_guid_section(4);
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$guid .= '-';
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$guid .= YouDaoTrans::create_guid_section(4);
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$guid .= '-';
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$guid .= $sec_hex;
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$guid .= YouDaoTrans::create_guid_section(6);
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return $guid;
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}
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public static function create_guid_section($characters) {
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$return = "";
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for ($i = 0; $i < $characters; $i++) {
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$return .= dechex(mt_rand(0, 15));
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}
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return $return;
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}
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public static function truncate($q) {
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$len = YouDaoTrans::abslength($q);
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return $len <= 20 ? $q : (mb_substr($q, 0, 10) . $len . mb_substr($q, $len - 10, $len));
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}
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public static function abslength($str) {
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if (empty($str)) {
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return 0;
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}
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if (function_exists('mb_strlen')) {
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return mb_strlen($str, 'utf-8');
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} else {
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preg_match_all("/./u", $str, $ar);
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return count($ar[0]);
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}
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}
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public static function ensure_length(&$string, $length) {
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$strlen = strlen($string);
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if ($strlen < $length) {
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$string = str_pad($string, $length, "0");
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} else if ($strlen > $length) {
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$string = substr($string, 0, $length);
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}
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}
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}
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