准备工作
第一步：注册OpenAI账号，如果搭建了科学还是提示不对你的国家提供服务的话，尝试清空浏览器缓存或者打开浏览器的无痕窗口。Chrome默认在右上角三个点打开就能找到“打开新的无痕式窗口”。
ChatGPT聊天库代码示例
我们需要三个东西：UserAgent，CfClearance，Session_token
我们需要先打开ChatGPT官方网站：https://chat.openai.com/chat 然后按下F12打开浏览器的开发者模式
UserAgent在网络里（只需要复制UserAgent：后面的值）：
CfClearance和Session_token在应用程序->cookie里面
2.创建一个session用来表示一个会话
public OpenAISession(string session_token,string cfClearance,string userAgent)
{
Session_token = session_token;
CfClearance = cfClearance;
UserAgent = userAgent;
Headers = new Dictionary<string, string>();
Cookies = new Dictionary<string, string>();
Proxies = new Dictionary<string, string>();
}
Session可以刷新自己的AccessToken和Session_token
public async Task RefreshSessionAsync()
{
if (string.IsNullOrEmpty(Session_token))
{
throw new Exception("No tokens provided");
}
// Set cookies
Cookies.Put("__Secure-next-auth.session-token", Session_token);
Cookies.Put("cf_clearance", CfClearance);
string cookiesString = GetCookiesString();
Dictionary<string, string> map = new Dictionary<string, string>();
Headers.Put("User-Agent", UserAgent);
Headers.Put("cookie", cookiesString);
Headers.Put("Cookie", cookiesString);
var response = await GetAsync("https://chat.openai.com/api/auth/session");
if (!response.IsSuccessStatusCode)
{
Console.WriteLine("err code: " + response.StatusCode);
Console.WriteLine("cf_clearance: " + CfClearance);
Console.WriteLine("token: " + Session_token);
Console.WriteLine("userAgent: " + UserAgent);
Console.WriteLine("请检查以上参数是否正确，是否过期。");
throw new Exception("无法获取token!请重试");
}
try
{
string name = "__Secure-next-auth.session-token=";
var cookies = response.Headers.GetValues("Set-Cookie");
var stoken = cookies.FirstOrDefault(x => x.StartsWith(name));
Session_token = stoken == null ? Session_token : stoken.Substring(name.Length, stoken.IndexOf(";") - name.Length);
Cookies.Put("__Secure-next-auth.session-token", Session_token);
var result = await response.Content.ReadAsStringAsync();
AccessToken = JsonSerializer.Deserialize<Profile>(result, _jsonSerializerOptions)?.AccessToken;
RefreshHeaders();
}
catch (Exception ex)
{
Console.WriteLine($"Error {nameof(RefreshSessionAsync)}:{ex}");
throw new Exception($"Error {nameof(RefreshSessionAsync)}", ex);
}
}获取到的最新的AccessToken更新到header里，Session_token更新到cookie里
private void RefreshHeaders()
{
Headers.Put("Host", "chat.openai.com");
Headers.Put("Accept", "text/event-stream");
Headers.Put("Authorization", $"Bearer {AccessToken}");
Headers.Put("User-Agent", UserAgent);
Headers.Put("X-Openai-Assistant-App-Id", string.Empty);
Headers.Put("Connection", "close");
Headers.Put("Accept-Language", "en-US,en;q=0.9");
Headers.Put("Referer", "https://chat.openai.com/chat");
}
string name = "__Secure-next-auth.session-token=";
var cookies = response.Headers.GetValues("Set-Cookie");
var stoken = cookies.FirstOrDefault(x => x.StartsWith(name));
Session_token = stoken == null ? Session_token : stoken.Substring(name.Length, stoken.IndexOf(";") - name.Length);
Cookies.Put("__Secure-next-auth.session-token", Session_token);3.创建机器人绑定一个会话
public Chatbot(OpenAISession openAISession)
{
OpenAISession = openAISession;
ResetConversation();
}
/// <summary>
/// 重置Conversation，开启一个新的会话
/// </summary>
public void ResetConversation()
{
_conversationId = null;
_parentMessageId = Guid.NewGuid().ToString();
}如何保持上下文聊天以及多用户隔离？
上下文聊天已经内置，会自动与机器人的回复进行关联，当需要重新开启一个对话的时候，可以调用ResetConversation，这样对应的机器人对象发过去就是开启了一个新的对话。
如何多用户隔离？比如联合微信机器人使用，可以将一个人或者一个群对应一个Chatbot对象，并且利用id与机器人做关联。
当然这个_clientID需要使用者做唯一性管理
//可以作为隔离不同客户端聊天上下文的凭据，即一个机器人绑定一个客户端
//客户端编号可以是，微信id,qq id,飞书id,亦或者自己开发的软件的用户id
private readonly string _clientID;
public Chatbot(OpenAISession openAISession, string clientID)
{
OpenAISession = openAISession;
_clientID = clientID == null ? Guid.NewGuid().ToString() : clientID;
ResetConversation();
}最后构造对话对象，发送到对应api
public async Task<Reply> GetChatReplyAsync(string prompt)
{
var conversation = new Conversation();
conversation.Conversation_id = _conversationId;
conversation.Parent_message_id = _parentMessageId;
conversation.Messages = new Message[]
{
new Message()
{
Content = new Content
{
Parts = new string []{ prompt }
}
}
};
return await GetChatResponseAsync(conversation);
}
/// <summary>
/// 获取响应
/// </summary>
/// <param name="conversation"></param>
/// <returns></returns>
/// <exception cref="Exception">服务器返回非200</exception>
private async Task<Reply> GetChatResponseAsync(Conversation conversation)
{
using (var client = new HttpClient())
{
var response = await OpenAISession.PostAsync(_conversation, JsonSerializer.Serialize(conversation, _jsonSerializerOptions));
if (!response.IsSuccessStatusCode)
{
throw new Exception($"Faild to request.StatusCode:{response.StatusCode}");
}
var msg = await response.Content.ReadAsStringAsync();
var data = msg.Split("\n")?.ToList().Where(x => !string.IsNullOrEmpty(x) && !x.Contains("data: [DONE]")).LastOrDefault()?.Substring(5);
var reply = JsonSerializer.Deserialize<Reply>(data, _jsonSerializerOptions);
_conversationId = reply.Conversation_id;
return reply;
}
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