feat: add baidu translate api

bridge/bridge.py

@@ -1,11 +1,12 @@
-from bot import bot_factory
+from bot.factory import create_bot
 from bridge.context import Context
 from bridge.reply import Reply
 from common import const
 from common.log import logger
 from common.singleton import singleton
 from config import conf
-from voice import voice_factory
+from translate.factory import create_translator
+from voice.factory import create_voice
 
 
 @singleton
@@ -15,6 +16,7 @@ def __init__(self):
             "chat": const.CHATGPT,
             "voice_to_text": conf().get("voice_to_text", "openai"),
             "text_to_voice": conf().get("text_to_voice", "google"),
+            "translate": conf().get("translate", "baidu"),
         }
         model_type = conf().get("model")
         if model_type in ["text-davinci-003"]:
@@ -27,11 +29,13 @@ def get_bot(self, typename):
         if self.bots.get(typename) is None:
             logger.info("create bot {} for {}".format(self.btype[typename], typename))
             if typename == "text_to_voice":
-                self.bots[typename] = voice_factory.create_voice(self.btype[typename])
+                self.bots[typename] = create_voice(self.btype[typename])
             elif typename == "voice_to_text":
-                self.bots[typename] = voice_factory.create_voice(self.btype[typename])
+                self.bots[typename] = create_voice(self.btype[typename])
             elif typename == "chat":
-                self.bots[typename] = bot_factory.create_bot(self.btype[typename])
+                self.bots[typename] = create_bot(self.btype[typename])
+            elif typename == "translate":
+                self.bots[typename] = create_translator(self.btype[typename])
         return self.bots[typename]
 
     def get_bot_type(self, typename):

config.py

@@ -66,6 +66,11 @@
     "chat_time_module": False,  # 是否开启服务时间限制
     "chat_start_time": "00:00",  # 服务开始时间
     "chat_stop_time": "24:00",  # 服务结束时间
+    # 翻译api
+    "translate": "baidu",  # 翻译api，支持baidu
+    # baidu翻译api的配置
+    "baidu_translate_app_id": "",  # 百度翻译api的appid
+    "baidu_translate_app_key": "",  # 百度翻译api的秘钥
     # itchat的配置
     "hot_reload": False,  # 是否开启热重载
     # wechaty的配置

translate/baidu/baidu_translate.py

@@ -0,0 +1,49 @@
+# -*- coding: utf-8 -*-
+
+import random
+from hashlib import md5
+
+import requests
+
+from config import conf
+from translate.translator import Translator
+
+# from langid import classify
+
+
+class BaiduTranslator(Translator):
+    def __init__(self) -> None:
+        super().__init__()
+        endpoint = "http://api.fanyi.baidu.com"
+        path = "/api/trans/vip/translate"
+        self.url = endpoint + path
+        self.appid = conf().get("baidu_translate_app_id")
+        self.appkey = conf().get("baidu_translate_app_key")
+
+    # For list of language codes, please refer to `https://api.fanyi.baidu.com/doc/21`, need to convert to ISO 639-1 codes
+    def translate(self, query: str, from_lang: str = "", to_lang: str = "en") -> str:
+        if not from_lang:
+            from_lang = "auto"  # baidu suppport auto detect
+            # from_lang = classify(query)[0]
+        salt = random.randint(32768, 65536)
+        sign = self.make_md5(self.appid + query + str(salt) + self.appkey)
+        headers = {"Content-Type": "application/x-www-form-urlencoded"}
+        payload = {"appid": self.appid, "q": query, "from": from_lang, "to": to_lang, "salt": salt, "sign": sign}
+
+        retry_cnt = 3
+        while retry_cnt:
+            r = requests.post(self.url, params=payload, headers=headers)
+            result = r.json()
+            if errcode := result.get("error_code", "52000") != "52000":
+                if errcode == "52001" or errcode == "52002":
+                    retry_cnt -= 1
+                    continue
+                else:
+                    raise Exception(result["error_msg"])
+            else:
+                break
+        text = "\n".join([item["dst"] for item in result["trans_result"]])
+        return text
+
+    def make_md5(self, s, encoding="utf-8"):
+        return md5(s.encode(encoding)).hexdigest()

translate/factory.py

@@ -0,0 +1,6 @@
+def create_translator(voice_type):
+    if voice_type == "baidu":
+        from translate.baidu.baidu_translate import BaiduTranslator
+
+        return BaiduTranslator()
+    raise RuntimeError

translate/translator.py

@@ -0,0 +1,12 @@
+"""
+Voice service abstract class
+"""
+
+
+class Translator(object):
+    # please use https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes to specify language
+    def translate(self, query: str, from_lang: str = "", to_lang: str = "en") -> str:
+        """
+        Translate text from one language to another
+        """
+        raise NotImplementedError