From c4eb2067289d61e439882b8d0dbb0a1593ddb8a0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=92=9F=E8=BF=9B?= <zhongjin@onenetcom.cn>
Date: Sun, 11 Nov 2018 15:36:39 +0800
Subject: [PATCH] Update text2speech.js

---
 lib/text2speech.js | 77 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)

diff --git a/lib/text2speech.js b/lib/text2speech.js
index f0d50bc..c36f8a5 100644
--- a/lib/text2speech.js
+++ b/lib/text2speech.js
@@ -85,6 +85,82 @@ function Text2Speech(adapter, libs, options, sayIt) {
         callback(error, text, language, volume, seconds);
     }
 
+/*
+
+tex	必填	合成的文本，使用UTF-8编码。小于2048个中文字或者英文数字。（文本在百度服务器内转换为GBK后，长度必须小于4096字节）
+tok	必填	开放平台获取到的开发者access_token（见上面的“鉴权认证机制”段落）
+cuid	必填	用户唯一标识，用来计算UV值。建议填写能区分用户的机器 MAC 地址或 IMEI 码，长度为60字符以内
+ctp	必填	客户端类型选择，web端填写固定值1
+lan	必填	固定值zh。语言选择,目前只有中英文混合模式，填写固定值zh
+spd	选填	语速，取值0-15，默认为5中语速
+pit	选填	音调，取值0-15，默认为5中语调
+vol	选填	音量，取值0-15，默认为5中音量
+per	选填	发音人选择, 0为普通女声，1为普通男生，3为情感合成-度逍遥，4为情感合成-度丫丫，默认为普通女声
+aue	选填	3为mp3格式(默认)； 4为pcm-16k；5为pcm-8k；6为wav（内容同pcm-16k）; 注意aue=4或者6是语音识别要求的格式，但是音频内容不是语音识别要求的自然人发音，所以识别效果会受影响。
+
+https://openapi.baidu.com/oauth/2.0/token?grant_type=client_credentials&client_id=QWM8zjGEEM2LfbGfQ2kn6pRA&client_secret=WhzukkSKnFagOZy3t4pD14bMvmmWiLOn
+*/
+
+    function sayItGetSpeechBaidu(text, language, volume, callback) {
+        
+        var client_id = 'QWM8zjGEEM2LfbGfQ2kn6pRA';
+        
+        var client_secret = 'WhzukkSKnFagOZy3t4pD14bMvmmWiLOn'; 
+
+        var url ='https://openapi.baidu.com/oauth/2.0/token?grant_type=client_credentials&client_id=' + client_id +'&client_secret=' +client_secret;
+        
+
+        var cuid ='1234ABCD_9876';
+        
+        var tok='24.a15e4c6d4d0a37a931db986c3fe17660.2592000.1544513699.282335-10607289';
+        
+        
+        const options = {
+            host: 'tsn.baidu.com',
+            //port: 443,
+            path: '/text2audio?lan=zh&ctp=1&cuid=' + cuid +'&tok=' + tok + '&tex=' + encodeURI(text) + '&vol=9&per=0&spd=5&pit=5&aue=3'
+        };
+        
+        if (!libs.https) libs.https = require('https');
+        if (!libs.fs)    libs.fs    = require('fs');
+
+        let sounddata = '';
+        
+        libs.https.get(options, res => {
+            res.setEncoding('binary');
+
+            res.on('data', chunk => sounddata += chunk);
+
+            res.on('end', () => {
+                if (sounddata.length < 100) {
+                    if (callback) callback('Cannot get file: received file is too short', text, language, volume, 0);
+                    return;
+                }
+
+                if (sounddata.toString().indexOf('302 Moved') !== -1) {
+                    if (callback) callback('http://' + options.host + options.path + '\nCannot get file: ' + sounddata, text, language, volume, 0);
+                    return;
+                }
+
+                libs.fs.writeFile(MP3FILE, sounddata, 'binary', err => {
+                    if (err) {
+                        if (callback) callback('File error: ' + err, text, language, volume, 0);
+                    } else {
+                        that.getLength(MP3FILE, (error, seconds) => {
+                            if (callback) callback(error, text, language, volume, seconds);
+                        });
+                    }
+                });
+            });            
+            
+
+        }).on('error', err => {
+            sounddata = '';
+            if (callback) callback('Cannot get file:' + err, text, language, volume, 0);
+        });        
+
+    }
+
     function sayItGetSpeechGoogle(text, language, volume, callback) {
         if (typeof volume === 'function') {
             callback = volume;
@@ -432,6 +508,7 @@ function Text2Speech(adapter, libs, options, sayIt) {
     };
 
     const ENGINES = {
+        'baidu':    sayItGetSpeechBaidu,
         'google':   sayItGetSpeechGoogle,
         'yandex':   sayItGetSpeechYandex,
         'acapela':  sayItGetSpeechAcapela,