perf: 优化openai模型消息截断机制

model/provider/provider_openai_official.py

@@ -119,6 +119,10 @@ class ProviderOpenAIOfficial(Provider):
         retry = 0
         response = None
         err = ''
+
+        # 截断倍率
+        truncate_rate = 0.75
+
         while retry < 15:
             try:
                 response = openai.ChatCompletion.create(
@@ -139,19 +143,21 @@ class ProviderOpenAIOfficial(Provider):
                     else:
                         break
                 elif 'maximum context length' in str(e):
-                    gu.log("token超限, 清空对应缓存，并进行消息0.75倍截断")
+                    gu.log("token超限, 清空对应缓存，并进行消息截断")
                     self.session_dict[session_id] = []
-                    prompt = prompt[:int(len(prompt)*0.75)]
+                    prompt = prompt[:int(len(prompt)*truncate_rate)]
+                    truncate_rate -= 0.05
                     cache_data_list, new_record, req = self.wrap(prompt, session_id)
 
                 elif 'Limit: 3 / min. Please try again in 20s.' in str(e) or "OpenAI response error" in str(e):
                     time.sleep(30)
+                    continue
                 else:
-                    time.sleep(5)
                     gu.log(str(e), level=gu.LEVEL_ERROR)
+                time.sleep(3)
                 err = str(e)
                 retry+=1
-        if retry >= 5:
+        if retry >= 15:
             gu.log(r"如果报错, 且您的机器在中国大陆内, 请确保您的电脑已经设置好代理软件(梯子), 并在配置文件设置了系统代理地址。详见https://github.com/Soulter/QQChannelChatGPT/wiki/%E4%BA%8C%E3%80%81%E9%A1%B9%E7%9B%AE%E9%85%8D%E7%BD%AE%E6%96%87%E4%BB%B6%E9%85%8D%E7%BD%AE", max_len=999)
             raise BaseException("连接出错: "+str(err))