feat: support channel remain quota query (close #79)

* Make token calculation more accurate.

* fix: make the token number calculation more accurate

---------

Co-authored-by: JustSong <songquanpeng@foxmail.com>

README.md

@@ -38,6 +38,8 @@ _✨ All in one 的 OpenAI 接口，整合各种 API 访问方式，开箱即用
   <a href="https://github.com/songquanpeng/one-api#截图展示">截图展示</a>
   ·
   <a href="https://openai.justsong.cn/">在线演示</a>
+  ·
+  <a href="https://github.com/songquanpeng/one-api#常见问题">常见问题</a>
 </p>
 
 > **Warning**：从 `v0.2` 版本升级到 `v0.3` 版本需要手动迁移数据库，请手动执行[数据库迁移脚本](./bin/migration_v0.2-v0.3.sql)。
@@ -48,26 +50,29 @@ _✨ All in one 的 OpenAI 接口，整合各种 API 访问方式，开箱即用
    + [x] OpenAI 官方通道
    + [x] **Azure OpenAI API**
    + [x] [API2D](https://api2d.com/r/197971)
-   + [x] [CloseAI](https://console.openai-asia.com)
+   + [x] [OhMyGPT](https://aigptx.top?aff=uFpUl2Kf)
-   + [x] [OpenAI-SB](https://openai-sb.com)
+   + [x] [AI Proxy](https://aiproxy.io/?i=OneAPI) （邀请码：`OneAPI`）
+   + [x] [AI.LS](https://ai.ls)
    + [x] [OpenAI Max](https://openaimax.com)
-   + [x] [OhMyGPT](https://www.ohmygpt.com)
+   + [x] [OpenAI-SB](https://openai-sb.com)
+   + [x] [CloseAI](https://console.openai-asia.com/r/2412)
    + [x] 自定义渠道：例如使用自行搭建的 OpenAI 代理
 2. 支持通过**负载均衡**的方式访问多个渠道。
 3. 支持 **stream 模式**，可以通过流式传输实现打字机效果。
-4. 支持**令牌管理**，设置令牌的过期时间和使用次数。
+4. 支持**多机部署**，[详见此处](#多机部署)。
-5. 支持**兑换码管理**，支持批量生成和导出兑换码，可使用兑换码为令牌进行充值。
+5. 支持**令牌管理**，设置令牌的过期时间和使用次数。
-6. 支持**通道管理**，批量创建通道。
+6. 支持**兑换码管理**，支持批量生成和导出兑换码，可使用兑换码为账户进行充值。
-7. 支持发布公告，设置充值链接，设置新用户初始额度。
+7. 支持**通道管理**，批量创建通道。
-8. 支持丰富的**自定义**设置，
+8. 支持发布公告，设置充值链接，设置新用户初始额度。
+9. 支持丰富的**自定义**设置，
    1. 支持自定义系统名称，logo 以及页脚。
    2. 支持自定义首页和关于页面，可以选择使用 HTML & Markdown 代码进行自定义，或者使用一个单独的网页通过 iframe 嵌入。
-9. 支持通过系统访问令牌访问管理 API。
+10. 支持通过系统访问令牌访问管理 API。
-10. 支持用户管理，支持**多种用户登录注册方式**：
+11. 支持用户管理，支持**多种用户登录注册方式**：
     + 邮箱登录注册以及通过邮箱进行密码重置。
     + [GitHub 开放授权](https://github.com/settings/applications/new)。
     + 微信公众号授权（需要额外部署 [WeChat Server](https://github.com/songquanpeng/wechat-server)）。
-11. 未来其他大模型开放 API 后，将第一时间支持，并将其封装成同样的 API 访问方式。
+12. 未来其他大模型开放 API 后，将第一时间支持，并将其封装成同样的 API 访问方式。
 
 ## 部署
 ### 基于 Docker 进行部署
@@ -90,13 +95,10 @@ server{
           proxy_set_header X-Forwarded-For $remote_addr;
           proxy_cache_bypass $http_upgrade;
           proxy_set_header Accept-Encoding gzip;
-          proxy_buffering off;  # 重要：关闭代理缓冲
    }
 }
 ```
 
-注意，为了 SSE 正常工作，需要关闭 Nginx 的代理缓冲。
-
 之后使用 Let's Encrypt 的 certbot 配置 HTTPS：
 ```bash
 # Ubuntu 安装 certbot：
@@ -133,6 +135,14 @@ sudo service nginx restart
 
 更加详细的部署教程[参见此处](https://iamazing.cn/page/how-to-deploy-a-website)。
 
+### 多机部署
+1. 所有服务器 `SESSION_SECRET` 设置一样的值。
+2. 必须设置 `SQL_DSN`，使用 MySQL 数据库而非 SQLite，请自行配置主备数据库同步。
+3. 所有从服务器必须设置 `SYNC_FREQUENCY`，以定期从数据库同步配置。
+4. 从服务器可以选择设置 `FRONTEND_BASE_URL`，以重定向页面请求到主服务器。
+
+环境变量的具体使用方法详见[此处](#环境变量)。
+
 ## 配置
 系统本身开箱即用。
 
@@ -157,6 +167,10 @@ sudo service nginx restart
    + 例子：`SESSION_SECRET=random_string`
 3. `SQL_DSN`：设置之后将使用指定数据库而非 SQLite。
    + 例子：`SQL_DSN=root:123456@tcp(localhost:3306)/one-api`
+4. `FRONTEND_BASE_URL`：设置之后将使用指定的前端地址，而非后端地址。
+   + 例子：`FRONTEND_BASE_URL=https://openai.justsong.cn`
+5. `SYNC_FREQUENCY`：设置之后将定期与数据库同步配置，单位为秒，未设置则不进行同步。
+   + 例子：`SYNC_FREQUENCY=60`
 
 ### 命令行参数
 1. `--port <port_number>`: 指定服务器监听的端口号，默认为 `3000`。
@@ -174,3 +188,10 @@ https://openai.justsong.cn
 ### 截图展示
 ![channel](https://user-images.githubusercontent.com/39998050/233837954-ae6683aa-5c4f-429f-a949-6645a83c9490.png)
 ![token](https://user-images.githubusercontent.com/39998050/233837971-dab488b7-6d96-43af-b640-a168e8d1c9bf.png)
+
+## 常见问题
+1. 账户额度足够为什么提示额度不足？
+   + 请检查你的令牌额度是否足够，这个和账户额度是分开的。
+   + 令牌额度仅供用户设置最大使用量，用户可自由设置。
+2. 宝塔部署后访问出现空白页面？
+   + 自动配置的问题，详见[#97](https://github.com/songquanpeng/one-api/issues/97)。

common/constants.go

@@ -127,6 +127,9 @@ const (
 	ChannelTypeOpenAIMax = 6
 	ChannelTypeOhMyGPT   = 7
 	ChannelTypeCustom    = 8
+	ChannelTypeAILS      = 9
+	ChannelTypeAIProxy   = 10
+	ChannelTypePaLM      = 11
 )
 
 var ChannelBaseURLs = []string{
@@ -139,4 +142,7 @@ var ChannelBaseURLs = []string{
 	"https://api.openaimax.com",   // 6
 	"https://api.ohmygpt.com",     // 7
 	"",                            // 8
+	"https://api.caipacity.com",   // 9
+	"https://api.aiproxy.io",      // 10
+	"",                            // 11
 }

controller/channel-billing.go

@@ -0,0 +1,158 @@
+package controller
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"github.com/gin-gonic/gin"
+	"io"
+	"net/http"
+	"one-api/common"
+	"one-api/model"
+	"strconv"
+	"time"
+)
+
+type OpenAISubscriptionResponse struct {
+	HasPaymentMethod bool    `json:"has_payment_method"`
+	HardLimitUSD     float64 `json:"hard_limit_usd"`
+}
+
+type OpenAIUsageResponse struct {
+	TotalUsage float64 `json:"total_usage"` // unit: 0.01 dollar
+}
+
+func updateChannelBalance(channel *model.Channel) (float64, error) {
+	baseURL := common.ChannelBaseURLs[channel.Type]
+	switch channel.Type {
+	case common.ChannelTypeAzure:
+		return 0, errors.New("尚未实现")
+	}
+	url := fmt.Sprintf("%s/v1/dashboard/billing/subscription", baseURL)
+
+	client := &http.Client{}
+	req, err := http.NewRequest("GET", url, nil)
+	if err != nil {
+		return 0, err
+	}
+	auth := fmt.Sprintf("Bearer %s", channel.Key)
+	req.Header.Add("Authorization", auth)
+	res, err := client.Do(req)
+	if err != nil {
+		return 0, err
+	}
+	body, err := io.ReadAll(res.Body)
+	if err != nil {
+		return 0, err
+	}
+	err = res.Body.Close()
+	if err != nil {
+		return 0, err
+	}
+	subscription := OpenAISubscriptionResponse{}
+	err = json.Unmarshal(body, &subscription)
+	if err != nil {
+		return 0, err
+	}
+	now := time.Now()
+	startDate := fmt.Sprintf("%s-01", now.Format("2006-01"))
+	//endDate := now.Format("2006-01-02")
+	url = fmt.Sprintf("%s/v1/dashboard/billing/usage?start_date=%s&end_date=%s", baseURL, startDate, "2023-06-01")
+	req, err = http.NewRequest("GET", url, nil)
+	if err != nil {
+		return 0, err
+	}
+	req.Header.Add("Authorization", auth)
+	res, err = client.Do(req)
+	if err != nil {
+		return 0, err
+	}
+	body, err = io.ReadAll(res.Body)
+	if err != nil {
+		return 0, err
+	}
+	err = res.Body.Close()
+	if err != nil {
+		return 0, err
+	}
+	usage := OpenAIUsageResponse{}
+	err = json.Unmarshal(body, &usage)
+	if err != nil {
+		return 0, err
+	}
+	balance := subscription.HardLimitUSD - usage.TotalUsage/100
+	channel.UpdateBalance(balance)
+	return balance, nil
+}
+
+func UpdateChannelBalance(c *gin.Context) {
+	id, err := strconv.Atoi(c.Param("id"))
+	if err != nil {
+		c.JSON(http.StatusOK, gin.H{
+			"success": false,
+			"message": err.Error(),
+		})
+		return
+	}
+	channel, err := model.GetChannelById(id, true)
+	if err != nil {
+		c.JSON(http.StatusOK, gin.H{
+			"success": false,
+			"message": err.Error(),
+		})
+		return
+	}
+	balance, err := updateChannelBalance(channel)
+	if err != nil {
+		c.JSON(http.StatusOK, gin.H{
+			"success": false,
+			"message": err.Error(),
+		})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{
+		"success": true,
+		"message": "",
+		"balance": balance,
+	})
+	return
+}
+
+func updateAllChannelsBalance() error {
+	channels, err := model.GetAllChannels(0, 0, true)
+	if err != nil {
+		return err
+	}
+	for _, channel := range channels {
+		if channel.Status != common.ChannelStatusEnabled {
+			continue
+		}
+		balance, err := updateChannelBalance(channel)
+		if err != nil {
+			continue
+		} else {
+			// err is nil & balance <= 0 means quota is used up
+			if balance <= 0 {
+				disableChannel(channel.Id, channel.Name, "余额不足")
+			}
+		}
+	}
+	return nil
+}
+
+func UpdateAllChannelsBalance(c *gin.Context) {
+	// TODO: make it async
+	err := updateAllChannelsBalance()
+	if err != nil {
+		c.JSON(http.StatusOK, gin.H{
+			"success": false,
+			"message": err.Error(),
+		})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{
+		"success": true,
+		"message": "",
+	})
+	return
+}

controller/channel.go

@@ -201,7 +201,7 @@ func testChannel(channel *model.Channel, request *ChatRequest) error {
 	if err != nil {
 		return err
 	}
-	if response.Error.Type != "" {
+	if response.Error.Message != "" {
 		return errors.New(fmt.Sprintf("type %s, code %s, message %s", response.Error.Type, response.Error.Code, response.Error.Message))
 	}
 	return nil
@@ -265,14 +265,14 @@ var testAllChannelsLock sync.Mutex
 var testAllChannelsRunning bool = false
 
 // disable & notify
-func disableChannel(channelId int, channelName string, err error) {
+func disableChannel(channelId int, channelName string, reason string) {
 	if common.RootUserEmail == "" {
 		common.RootUserEmail = model.GetRootUserEmail()
 	}
 	model.UpdateChannelStatusById(channelId, common.ChannelStatusDisabled)
 	subject := fmt.Sprintf("通道「%s」（#%d）已被禁用", channelName, channelId)
-	content := fmt.Sprintf("通道「%s」（#%d）已被禁用，原因：%s", channelName, channelId, err.Error())
+	content := fmt.Sprintf("通道「%s」（#%d）已被禁用，原因：%s", channelName, channelId, reason)
-	err = common.SendEmail(subject, common.RootUserEmail, content)
+	err := common.SendEmail(subject, common.RootUserEmail, content)
 	if err != nil {
 		common.SysError(fmt.Sprintf("发送邮件失败：%s", err.Error()))
 	}
@@ -312,7 +312,7 @@ func testAllChannels(c *gin.Context) error {
 				if milliseconds > disableThreshold {
 					err = errors.New(fmt.Sprintf("响应时间 %.2fs 超过阈值 %.2fs", float64(milliseconds)/1000.0, float64(disableThreshold)/1000.0))
 				}
-				disableChannel(channel.Id, channel.Name, err)
+				disableChannel(channel.Id, channel.Name, err.Error())
 			}
 			channel.UpdateResponseTime(milliseconds)
 		}

controller/relay-palm.go

@@ -0,0 +1,59 @@
+package controller
+
+import (
+	"fmt"
+	"github.com/gin-gonic/gin"
+)
+
+type PaLMChatMessage struct {
+	Author  string `json:"author"`
+	Content string `json:"content"`
+}
+
+type PaLMFilter struct {
+	Reason  string `json:"reason"`
+	Message string `json:"message"`
+}
+
+// https://developers.generativeai.google/api/rest/generativelanguage/models/generateMessage#request-body
+type PaLMChatRequest struct {
+	Prompt         []Message `json:"prompt"`
+	Temperature    float64   `json:"temperature"`
+	CandidateCount int       `json:"candidateCount"`
+	TopP           float64   `json:"topP"`
+	TopK           int       `json:"topK"`
+}
+
+// https://developers.generativeai.google/api/rest/generativelanguage/models/generateMessage#response-body
+type PaLMChatResponse struct {
+	Candidates []Message    `json:"candidates"`
+	Messages   []Message    `json:"messages"`
+	Filters    []PaLMFilter `json:"filters"`
+}
+
+func relayPaLM(openAIRequest GeneralOpenAIRequest, c *gin.Context) *OpenAIErrorWithStatusCode {
+	// https://developers.generativeai.google/api/rest/generativelanguage/models/generateMessage
+	messages := make([]PaLMChatMessage, 0, len(openAIRequest.Messages))
+	for _, message := range openAIRequest.Messages {
+		var author string
+		if message.Role == "user" {
+			author = "0"
+		} else {
+			author = "1"
+		}
+		messages = append(messages, PaLMChatMessage{
+			Author:  author,
+			Content: message.Content,
+		})
+	}
+	request := PaLMChatRequest{
+		Prompt:         nil,
+		Temperature:    openAIRequest.Temperature,
+		CandidateCount: openAIRequest.N,
+		TopP:           openAIRequest.TopP,
+		TopK:           openAIRequest.MaxTokens,
+	}
+	// TODO: forward request to PaLM & convert response
+	fmt.Print(request)
+	return nil
+}

controller/relay-utils.go

@@ -0,0 +1,65 @@
+package controller
+
+import (
+	"fmt"
+	"github.com/pkoukk/tiktoken-go"
+	"one-api/common"
+	"strings"
+)
+
+var tokenEncoderMap = map[string]*tiktoken.Tiktoken{}
+
+func getTokenEncoder(model string) *tiktoken.Tiktoken {
+	if tokenEncoder, ok := tokenEncoderMap[model]; ok {
+		return tokenEncoder
+	}
+	tokenEncoder, err := tiktoken.EncodingForModel(model)
+	if err != nil {
+		common.SysError(fmt.Sprintf("failed to get token encoder for model %s: %s, using encoder for gpt-3.5-turbo", model, err.Error()))
+		tokenEncoder, err = tiktoken.EncodingForModel("gpt-3.5-turbo")
+		if err != nil {
+			common.FatalLog(fmt.Sprintf("failed to get token encoder for model gpt-3.5-turbo: %s", err.Error()))
+		}
+	}
+	tokenEncoderMap[model] = tokenEncoder
+	return tokenEncoder
+}
+
+func countTokenMessages(messages []Message, model string) int {
+	tokenEncoder := getTokenEncoder(model)
+	// Reference:
+	// https://github.com/openai/openai-cookbook/blob/main/examples/How_to_count_tokens_with_tiktoken.ipynb
+	// https://github.com/pkoukk/tiktoken-go/issues/6
+	//
+	// Every message follows <|start|>{role/name}\n{content}<|end|>\n
+	var tokensPerMessage int
+	var tokensPerName int
+	if strings.HasPrefix(model, "gpt-3.5") {
+		tokensPerMessage = 4
+		tokensPerName = -1 // If there's a name, the role is omitted
+	} else if strings.HasPrefix(model, "gpt-4") {
+		tokensPerMessage = 3
+		tokensPerName = 1
+	} else {
+		tokensPerMessage = 3
+		tokensPerName = 1
+	}
+	tokenNum := 0
+	for _, message := range messages {
+		tokenNum += tokensPerMessage
+		tokenNum += len(tokenEncoder.Encode(message.Content, nil, nil))
+		tokenNum += len(tokenEncoder.Encode(message.Role, nil, nil))
+		if message.Name != nil {
+			tokenNum += tokensPerName
+			tokenNum += len(tokenEncoder.Encode(*message.Name, nil, nil))
+		}
+	}
+	tokenNum += 3 // Every reply is primed with <|start|>assistant<|message|>
+	return tokenNum
+}
+
+func countTokenText(text string, model string) int {
+	tokenEncoder := getTokenEncoder(model)
+	token := tokenEncoder.Encode(text, nil, nil)
+	return len(token)
+}

controller/relay.go

@@ -4,10 +4,8 @@ import (
 	"bufio"
 	"bytes"
 	"encoding/json"
-	"errors"
 	"fmt"
 	"github.com/gin-gonic/gin"
-	"github.com/pkoukk/tiktoken-go"
 	"io"
 	"net/http"
 	"one-api/common"
@@ -16,8 +14,22 @@ import (
 )
 
 type Message struct {
-	Role    string `json:"role"`
+	Role    string  `json:"role"`
-	Content string `json:"content"`
+	Content string  `json:"content"`
+	Name    *string `json:"name,omitempty"`
+}
+
+// https://platform.openai.com/docs/api-reference/chat
+
+type GeneralOpenAIRequest struct {
+	Model       string    `json:"model"`
+	Messages    []Message `json:"messages"`
+	Prompt      string    `json:"prompt"`
+	Stream      bool      `json:"stream"`
+	MaxTokens   int       `json:"max_tokens"`
+	Temperature float64   `json:"temperature"`
+	TopP        float64   `json:"top_p"`
+	N           int       `json:"n"`
 }
 
 type ChatRequest struct {
@@ -47,6 +59,11 @@ type OpenAIError struct {
 	Code    string `json:"code"`
 }
 
+type OpenAIErrorWithStatusCode struct {
+	OpenAIError
+	StatusCode int `json:"status_code"`
+}
+
 type TextResponse struct {
 	Usage `json:"usage"`
 	Error OpenAIError `json:"error"`
@@ -61,47 +78,55 @@ type StreamResponse struct {
 	} `json:"choices"`
 }
 
-var tokenEncoder, _ = tiktoken.GetEncoding("cl100k_base")
-
-func countToken(text string) int {
-	token := tokenEncoder.Encode(text, nil, nil)
-	return len(token)
-}
-
 func Relay(c *gin.Context) {
 	err := relayHelper(c)
 	if err != nil {
-		c.JSON(http.StatusOK, gin.H{
+		if err.StatusCode == http.StatusTooManyRequests {
-			"error": gin.H{
+			err.OpenAIError.Message = "负载已满，请稍后再试，或升级账户以提升服务质量。"
-				"message": err.Error(),
+		}
-				"type":    "one_api_error",
+		c.JSON(err.StatusCode, gin.H{
-			},
+			"error": err.OpenAIError,
 		})
-		if common.AutomaticDisableChannelEnabled {
+		channelId := c.GetInt("channel_id")
+		common.SysError(fmt.Sprintf("Relay error (channel #%d): %s", channelId, err.Message))
+		if err.Type != "invalid_request_error" && err.StatusCode != http.StatusTooManyRequests &&
+			common.AutomaticDisableChannelEnabled {
 			channelId := c.GetInt("channel_id")
 			channelName := c.GetString("channel_name")
-			disableChannel(channelId, channelName, err)
+			disableChannel(channelId, channelName, err.Message)
 		}
 	}
 }
 
-func relayHelper(c *gin.Context) error {
+func errorWrapper(err error, code string, statusCode int) *OpenAIErrorWithStatusCode {
+	openAIError := OpenAIError{
+		Message: err.Error(),
+		Type:    "one_api_error",
+		Code:    code,
+	}
+	return &OpenAIErrorWithStatusCode{
+		OpenAIError: openAIError,
+		StatusCode:  statusCode,
+	}
+}
+
+func relayHelper(c *gin.Context) *OpenAIErrorWithStatusCode {
 	channelType := c.GetInt("channel")
 	tokenId := c.GetInt("token_id")
 	consumeQuota := c.GetBool("consume_quota")
-	var textRequest TextRequest
+	var textRequest GeneralOpenAIRequest
-	if consumeQuota || channelType == common.ChannelTypeAzure {
+	if consumeQuota || channelType == common.ChannelTypeAzure || channelType == common.ChannelTypePaLM {
 		requestBody, err := io.ReadAll(c.Request.Body)
 		if err != nil {
-			return err
+			return errorWrapper(err, "read_request_body_failed", http.StatusBadRequest)
 		}
 		err = c.Request.Body.Close()
 		if err != nil {
-			return err
+			return errorWrapper(err, "close_request_body_failed", http.StatusBadRequest)
 		}
 		err = json.Unmarshal(requestBody, &textRequest)
 		if err != nil {
-			return err
+			return errorWrapper(err, "unmarshal_request_body_failed", http.StatusBadRequest)
 		}
 		// Reset request body
 		c.Request.Body = io.NopCloser(bytes.NewBuffer(requestBody))
@@ -129,12 +154,12 @@ func relayHelper(c *gin.Context) error {
 		model_ = strings.TrimSuffix(model_, "-0301")
 		model_ = strings.TrimSuffix(model_, "-0314")
 		fullRequestURL = fmt.Sprintf("%s/openai/deployments/%s/%s", baseURL, model_, task)
+	} else if channelType == common.ChannelTypePaLM {
+		err := relayPaLM(textRequest, c)
+		return err
 	}
-	var promptText string
+
-	for _, message := range textRequest.Messages {
+	promptTokens := countTokenMessages(textRequest.Messages, textRequest.Model)
-		promptText += fmt.Sprintf("%s: %s\n", message.Role, message.Content)
-	}
-	promptTokens := countToken(promptText) + 3
 	preConsumedTokens := common.PreConsumedQuota
 	if textRequest.MaxTokens != 0 {
 		preConsumedTokens = promptTokens + textRequest.MaxTokens
@@ -144,12 +169,12 @@ func relayHelper(c *gin.Context) error {
 	if consumeQuota {
 		err := model.PreConsumeTokenQuota(tokenId, preConsumedQuota)
 		if err != nil {
-			return err
+			return errorWrapper(err, "pre_consume_token_quota_failed", http.StatusOK)
 		}
 	}
 	req, err := http.NewRequest(c.Request.Method, fullRequestURL, c.Request.Body)
 	if err != nil {
-		return err
+		return errorWrapper(err, "new_request_failed", http.StatusOK)
 	}
 	if channelType == common.ChannelTypeAzure {
 		key := c.Request.Header.Get("Authorization")
@@ -164,15 +189,15 @@ func relayHelper(c *gin.Context) error {
 	client := &http.Client{}
 	resp, err := client.Do(req)
 	if err != nil {
-		return err
+		return errorWrapper(err, "do_request_failed", http.StatusOK)
 	}
 	err = req.Body.Close()
 	if err != nil {
-		return err
+		return errorWrapper(err, "close_request_body_failed", http.StatusOK)
 	}
 	err = c.Request.Body.Close()
 	if err != nil {
-		return err
+		return errorWrapper(err, "close_request_body_failed", http.StatusOK)
 	}
 	var textResponse TextResponse
 	isStream := strings.HasPrefix(resp.Header.Get("Content-Type"), "text/event-stream")
@@ -187,8 +212,8 @@ func relayHelper(c *gin.Context) error {
 				completionRatio = 2
 			}
 			if isStream {
-				completionText := fmt.Sprintf("%s: %s\n", "assistant", streamResponseText)
+				responseTokens := countTokenText(streamResponseText, textRequest.Model)
-				quota = promptTokens + countToken(completionText)*completionRatio
+				quota = promptTokens + responseTokens*completionRatio
 			} else {
 				quota = textResponse.Usage.PromptTokens + textResponse.Usage.CompletionTokens*completionRatio
 			}
@@ -223,6 +248,10 @@ func relayHelper(c *gin.Context) error {
 		go func() {
 			for scanner.Scan() {
 				data := scanner.Text()
+				if len(data) < 6 { // must be something wrong!
+					common.SysError("Invalid stream response: " + data)
+					continue
+				}
 				dataChan <- data
 				data = data[6:]
 				if !strings.HasPrefix(data, "[DONE]") {
@@ -243,6 +272,7 @@ func relayHelper(c *gin.Context) error {
 		c.Writer.Header().Set("Cache-Control", "no-cache")
 		c.Writer.Header().Set("Connection", "keep-alive")
 		c.Writer.Header().Set("Transfer-Encoding", "chunked")
+		c.Writer.Header().Set("X-Accel-Buffering", "no")
 		c.Stream(func(w io.Writer) bool {
 			select {
 			case data := <-dataChan:
@@ -257,50 +287,60 @@ func relayHelper(c *gin.Context) error {
 		})
 		err = resp.Body.Close()
 		if err != nil {
-			return err
+			return errorWrapper(err, "close_response_body_failed", http.StatusOK)
 		}
 		return nil
 	} else {
-		for k, v := range resp.Header {
-			c.Writer.Header().Set(k, v[0])
-		}
 		if consumeQuota {
 			responseBody, err := io.ReadAll(resp.Body)
 			if err != nil {
-				return err
+				return errorWrapper(err, "read_response_body_failed", http.StatusOK)
 			}
 			err = resp.Body.Close()
 			if err != nil {
-				return err
+				return errorWrapper(err, "close_response_body_failed", http.StatusOK)
 			}
 			err = json.Unmarshal(responseBody, &textResponse)
 			if err != nil {
-				return err
+				return errorWrapper(err, "unmarshal_response_body_failed", http.StatusOK)
 			}
 			if textResponse.Error.Type != "" {
-				return errors.New(fmt.Sprintf("type %s, code %s, message %s",
+				return &OpenAIErrorWithStatusCode{
-					textResponse.Error.Type, textResponse.Error.Code, textResponse.Error.Message))
+					OpenAIError: textResponse.Error,
+					StatusCode:  resp.StatusCode,
+				}
 			}
 			// Reset response body
 			resp.Body = io.NopCloser(bytes.NewBuffer(responseBody))
 		}
+		// We shouldn't set the header before we parse the response body, because the parse part may fail.
+		// And then we will have to send an error response, but in this case, the header has already been set.
+		// So the client will be confused by the response.
+		// For example, Postman will report error, and we cannot check the response at all.
+		for k, v := range resp.Header {
+			c.Writer.Header().Set(k, v[0])
+		}
+		c.Writer.WriteHeader(resp.StatusCode)
 		_, err = io.Copy(c.Writer, resp.Body)
 		if err != nil {
-			return err
+			return errorWrapper(err, "copy_response_body_failed", http.StatusOK)
 		}
 		err = resp.Body.Close()
 		if err != nil {
-			return err
+			return errorWrapper(err, "close_response_body_failed", http.StatusOK)
 		}
 		return nil
 	}
 }
 
 func RelayNotImplemented(c *gin.Context) {
+	err := OpenAIError{
+		Message: "API not implemented",
+		Type:    "one_api_error",
+		Param:   "",
+		Code:    "api_not_implemented",
+	}
 	c.JSON(http.StatusOK, gin.H{
-		"error": gin.H{
+		"error": err,
-			"message": "Not Implemented",
-			"type":    "one_api_error",
-		},
 	})
 }

main.go

@@ -47,6 +47,13 @@ func main() {
 
 	// Initialize options
 	model.InitOptionMap()
+	if os.Getenv("SYNC_FREQUENCY") != "" {
+		frequency, err := strconv.Atoi(os.Getenv("SYNC_FREQUENCY"))
+		if err != nil {
+			common.FatalLog(err)
+		}
+		go model.SyncOptions(frequency)
+	}
 
 	// Initialize HTTP server
 	server := gin.Default()

model/channel.go

@@ -6,17 +6,19 @@ import (
 )
 
 type Channel struct {
-	Id           int    `json:"id"`
+	Id                 int     `json:"id"`
-	Type         int    `json:"type" gorm:"default:0"`
+	Type               int     `json:"type" gorm:"default:0"`
-	Key          string `json:"key" gorm:"not null"`
+	Key                string  `json:"key" gorm:"not null"`
-	Status       int    `json:"status" gorm:"default:1"`
+	Status             int     `json:"status" gorm:"default:1"`
-	Name         string `json:"name" gorm:"index"`
+	Name               string  `json:"name" gorm:"index"`
-	Weight       int    `json:"weight"`
+	Weight             int     `json:"weight"`
-	CreatedTime  int64  `json:"created_time" gorm:"bigint"`
+	CreatedTime        int64   `json:"created_time" gorm:"bigint"`
-	TestTime     int64  `json:"test_time" gorm:"bigint"`
+	TestTime           int64   `json:"test_time" gorm:"bigint"`
-	ResponseTime int    `json:"response_time"` // in milliseconds
+	ResponseTime       int     `json:"response_time"` // in milliseconds
-	BaseURL      string `json:"base_url" gorm:"column:base_url"`
+	BaseURL            string  `json:"base_url" gorm:"column:base_url"`
-	Other        string `json:"other"`
+	Other              string  `json:"other"`
+	Balance            float64 `json:"balance"` // in USD
+	BalanceUpdatedTime int64   `json:"balance_updated_time" gorm:"bigint"`
 }
 
 func GetAllChannels(startIdx int, num int, selectAll bool) ([]*Channel, error) {
@@ -86,6 +88,16 @@ func (channel *Channel) UpdateResponseTime(responseTime int64) {
 	}
 }
 
+func (channel *Channel) UpdateBalance(balance float64) {
+	err := DB.Model(channel).Select("balance_updated_time", "balance").Updates(Channel{
+		BalanceUpdatedTime: common.GetTimestamp(),
+		Balance:            balance,
+	}).Error
+	if err != nil {
+		common.SysError("failed to update balance: " + err.Error())
+	}
+}
+
 func (channel *Channel) Delete() error {
 	var err error
 	err = DB.Delete(channel).Error

model/main.go

@@ -26,6 +26,7 @@ func createRootAccountIfNeed() error {
 			Status:      common.UserStatusEnabled,
 			DisplayName: "Root User",
 			AccessToken: common.GetUUID(),
+			Quota:       100000000,
 		}
 		DB.Create(&rootUser)
 	}

model/option.go

@@ -4,6 +4,7 @@ import (
 	"one-api/common"
 	"strconv"
 	"strings"
+	"time"
 )
 
 type Option struct {
@@ -59,6 +60,10 @@ func InitOptionMap() {
 	common.OptionMap["ModelRatio"] = common.ModelRatio2JSONString()
 	common.OptionMap["TopUpLink"] = common.TopUpLink
 	common.OptionMapRWMutex.Unlock()
+	loadOptionsFromDatabase()
+}
+
+func loadOptionsFromDatabase() {
 	options, _ := AllOption()
 	for _, option := range options {
 		err := updateOptionMap(option.Key, option.Value)
@@ -68,6 +73,14 @@ func InitOptionMap() {
 	}
 }
 
+func SyncOptions(frequency int) {
+	for {
+		time.Sleep(time.Duration(frequency) * time.Second)
+		common.SysLog("Syncing options from database")
+		loadOptionsFromDatabase()
+	}
+}
+
 func UpdateOption(key string, value string) error {
 	// Save to database first
 	option := Option{

model/user.go

@@ -19,8 +19,7 @@ type User struct {
 	Email            string `json:"email" gorm:"index" validate:"max=50"`
 	GitHubId         string `json:"github_id" gorm:"column:github_id;index"`
 	WeChatId         string `json:"wechat_id" gorm:"column:wechat_id;index"`
-	VerificationCode string `json:"verification_code" gorm:"-:all"` // this field is only for Email verification, don't save it to database!
+	VerificationCode string `json:"verification_code" gorm:"-:all"`                                    // this field is only for Email verification, don't save it to database!
-	Balance          int    `json:"balance" gorm:"type:int;default:0"`
 	AccessToken      string `json:"access_token" gorm:"type:char(32);column:access_token;uniqueIndex"` // this token is for system management
 	Quota            int    `json:"quota" gorm:"type:int;default:0"`
 }

router/api-router.go

@@ -66,6 +66,8 @@ func SetApiRouter(router *gin.Engine) {
 			channelRoute.GET("/:id", controller.GetChannel)
 			channelRoute.GET("/test", controller.TestAllChannels)
 			channelRoute.GET("/test/:id", controller.TestChannel)
+			channelRoute.GET("/update_balance", controller.UpdateAllChannelsBalance)
+			channelRoute.GET("/update_balance/:id", controller.UpdateChannelBalance)
 			channelRoute.POST("/", controller.AddChannel)
 			channelRoute.PUT("/", controller.UpdateChannel)
 			channelRoute.DELETE("/:id", controller.DeleteChannel)

router/main.go

@@ -2,12 +2,24 @@ package router
 
 import (
 	"embed"
+	"fmt"
 	"github.com/gin-gonic/gin"
+	"net/http"
+	"os"
+	"strings"
 )
 
 func SetRouter(router *gin.Engine, buildFS embed.FS, indexPage []byte) {
 	SetApiRouter(router)
 	SetDashboardRouter(router)
 	SetRelayRouter(router)
-	setWebRouter(router, buildFS, indexPage)
+	frontendBaseUrl := os.Getenv("FRONTEND_BASE_URL")
+	if frontendBaseUrl == "" {
+		SetWebRouter(router, buildFS, indexPage)
+	} else {
+		frontendBaseUrl = strings.TrimSuffix(frontendBaseUrl, "/")
+		router.NoRoute(func(c *gin.Context) {
+			c.Redirect(http.StatusMovedPermanently, fmt.Sprintf("%s%s", frontendBaseUrl, c.Request.RequestURI))
+		})
+	}
 }

router/web-router.go

@@ -10,7 +10,7 @@ import (
 	"one-api/middleware"
 )
 
-func setWebRouter(router *gin.Engine, buildFS embed.FS, indexPage []byte) {
+func SetWebRouter(router *gin.Engine, buildFS embed.FS, indexPage []byte) {
 	router.Use(gzip.Gzip(gzip.DefaultCompression))
 	router.Use(middleware.GlobalWebRateLimit())
 	router.Use(middleware.Cache())

web/src/components/ChannelsTable.js

@@ -32,6 +32,7 @@ const ChannelsTable = () => {
   const [activePage, setActivePage] = useState(1);
   const [searchKeyword, setSearchKeyword] = useState('');
   const [searching, setSearching] = useState(false);
+  const [updatingBalance, setUpdatingBalance] = useState(false);
 
   const loadChannels = async (startIdx) => {
     const res = await API.get(`/api/channel/?p=${startIdx}`);
@@ -63,7 +64,7 @@ const ChannelsTable = () => {
   const refresh = async () => {
     setLoading(true);
     await loadChannels(0);
-  }
+  };
 
   useEffect(() => {
     loadChannels(0)
@@ -127,7 +128,7 @@ const ChannelsTable = () => {
 
   const renderResponseTime = (responseTime) => {
     let time = responseTime / 1000;
-    time = time.toFixed(2) + " 秒";
+    time = time.toFixed(2) + ' 秒';
     if (responseTime === 0) {
       return <Label basic color='grey'>未测试</Label>;
     } else if (responseTime <= 1000) {
@@ -179,11 +180,38 @@ const ChannelsTable = () => {
     const res = await API.get(`/api/channel/test`);
     const { success, message } = res.data;
     if (success) {
-      showInfo("已成功开始测试所有已启用通道，请刷新页面查看结果。");
+      showInfo('已成功开始测试所有已启用通道，请刷新页面查看结果。');
     } else {
       showError(message);
     }
-  }
+  };
+
+  const updateChannelBalance = async (id, name, idx) => {
+    const res = await API.get(`/api/channel/update_balance/${id}/`);
+    const { success, message, balance } = res.data;
+    if (success) {
+      let newChannels = [...channels];
+      let realIdx = (activePage - 1) * ITEMS_PER_PAGE + idx;
+      newChannels[realIdx].balance = balance;
+      newChannels[realIdx].balance_updated_time = Date.now() / 1000;
+      setChannels(newChannels);
+      showInfo(`通道 ${name} 余额更新成功！`);
+    } else {
+      showError(message);
+    }
+  };
+
+  const updateAllChannelsBalance = async () => {
+    setUpdatingBalance(true);
+    const res = await API.get(`/api/channel/update_balance`);
+    const { success, message } = res.data;
+    if (success) {
+      showInfo('已更新完毕所有已启用通道余额！');
+    } else {
+      showError(message);
+    }
+    setUpdatingBalance(false);
+  };
 
   const handleKeywordChange = async (e, { value }) => {
     setSearchKeyword(value.trim());
@@ -263,10 +291,10 @@ const ChannelsTable = () => {
             <Table.HeaderCell
               style={{ cursor: 'pointer' }}
               onClick={() => {
-                sortChannel('test_time');
+                sortChannel('balance');
               }}
             >
-              测试时间
+              余额
             </Table.HeaderCell>
             <Table.HeaderCell>操作</Table.HeaderCell>
           </Table.Row>
@@ -286,8 +314,22 @@ const ChannelsTable = () => {
                   <Table.Cell>{channel.name ? channel.name : '无'}</Table.Cell>
                   <Table.Cell>{renderType(channel.type)}</Table.Cell>
                   <Table.Cell>{renderStatus(channel.status)}</Table.Cell>
-                  <Table.Cell>{renderResponseTime(channel.response_time)}</Table.Cell>
+                  <Table.Cell>
-                  <Table.Cell>{channel.test_time ? renderTimestamp(channel.test_time) : "未测试"}</Table.Cell>
+                    <Popup
+                      content={channel.test_time ? renderTimestamp(channel.test_time) : '未测试'}
+                      key={channel.id}
+                      trigger={renderResponseTime(channel.response_time)}
+                      basic
+                    />
+                  </Table.Cell>
+                  <Table.Cell>
+                    <Popup
+                      content={channel.balance_updated_time ? renderTimestamp(channel.balance_updated_time) : '未更新'}
+                      key={channel.id}
+                      trigger={<span>${channel.balance.toFixed(2)}</span>}
+                      basic
+                    />
+                  </Table.Cell>
                   <Table.Cell>
                     <div>
                       <Button
@@ -299,6 +341,16 @@ const ChannelsTable = () => {
                       >
                         测试
                       </Button>
+                      <Button
+                        size={'small'}
+                        positive
+                        loading={updatingBalance}
+                        onClick={() => {
+                          updateChannelBalance(channel.id, channel.name, idx);
+                        }}
+                      >
+                        更新余额
+                      </Button>
                       <Popup
                         trigger={
                           <Button size='small' negative>
@@ -353,6 +405,7 @@ const ChannelsTable = () => {
               <Button size='small' loading={loading} onClick={testAllChannels}>
                 测试所有已启用通道
               </Button>
+              <Button size='small' onClick={updateAllChannelsBalance} loading={updatingBalance}>更新所有已启用通道余额</Button>
               <Pagination
                 floated='right'
                 activePage={activePage}

web/src/components/PersonalSetting.js

@@ -112,13 +112,17 @@ const PersonalSetting = () => {
       <Button onClick={generateAccessToken}>生成系统访问令牌</Button>
       <Divider />
       <Header as='h3'>账号绑定</Header>
-      <Button
+      {
-        onClick={() => {
+        status.wechat_login && (
-          setShowWeChatBindModal(true);
+          <Button
-        }}
+            onClick={() => {
-      >
+              setShowWeChatBindModal(true);
-        绑定微信账号
+            }}
-      </Button>
+          >
+            绑定微信账号
+          </Button>
+        )
+      }
       <Modal
         onClose={() => setShowWeChatBindModal(false)}
         onOpen={() => setShowWeChatBindModal(true)}
@@ -148,7 +152,11 @@ const PersonalSetting = () => {
           </Modal.Description>
         </Modal.Content>
       </Modal>
-      <Button onClick={openGitHubOAuth}>绑定 GitHub 账号</Button>
+      {
+        status.github_oauth && (
+          <Button onClick={openGitHubOAuth}>绑定 GitHub 账号</Button>
+        )
+      }
       <Button
         onClick={() => {
           setShowEmailBindModal(true);

web/src/constants/channel.constants.js

@@ -1,10 +1,12 @@
 export const CHANNEL_OPTIONS = [
   { key: 1, text: 'OpenAI', value: 1, color: 'green' },
-  { key: 2, text: 'API2D', value: 2, color: 'blue' },
+  { key: 8, text: '自定义', value: 8, color: 'pink' },
   { key: 3, text: 'Azure', value: 3, color: 'olive' },
+  { key: 2, text: 'API2D', value: 2, color: 'blue' },
   { key: 4, text: 'CloseAI', value: 4, color: 'teal' },
   { key: 5, text: 'OpenAI-SB', value: 5, color: 'brown' },
   { key: 6, text: 'OpenAI Max', value: 6, color: 'violet' },
   { key: 7, text: 'OhMyGPT', value: 7, color: 'purple' },
-  { key: 8, text: '自定义', value: 8, color: 'pink' }
+  { key: 9, text: 'AI.LS', value: 9, color: 'yellow' },
+  { key: 10, text: 'AI Proxy', value: 10, color: 'purple' }
 ];

web/src/pages/Channel/EditChannel.js

@@ -46,6 +46,9 @@ const EditChannel = () => {
     if (localInputs.base_url.endsWith('/')) {
       localInputs.base_url = localInputs.base_url.slice(0, localInputs.base_url.length - 1);
     }
+    if (localInputs.type === 3 && localInputs.other === '') {
+      localInputs.other = '2023-03-15-preview';
+    }
     let res;
     if (isEdit) {
       res = await API.put(`/api/channel/`, { ...localInputs, id: parseInt(channelId) });

web/src/pages/TopUp/index.js

@@ -1,6 +1,6 @@
 import React, { useEffect, useState } from 'react';
 import { Button, Form, Grid, Header, Segment, Statistic } from 'semantic-ui-react';
-import { API, showError, showSuccess } from '../../helpers';
+import { API, showError, showInfo, showSuccess } from '../../helpers';
 
 const TopUp = () => {
   const [redemptionCode, setRedemptionCode] = useState('');
@@ -9,6 +9,7 @@ const TopUp = () => {
 
   const topUp = async () => {
     if (redemptionCode === '') {
+      showInfo('请输入充值码！')
       return;
     }
     const res = await API.post('/api/user/topup', {
@@ -80,7 +81,7 @@ const TopUp = () => {
         <Grid.Column>
           <Statistic.Group widths='one'>
             <Statistic>
-              <Statistic.Value>{userQuota}</Statistic.Value>
+              <Statistic.Value>{userQuota.toLocaleString()}</Statistic.Value>
               <Statistic.Label>剩余额度</Statistic.Label>
             </Statistic>
           </Statistic.Group>

web/src/pages/User/EditUser.js

@@ -14,8 +14,9 @@ const EditUser = () => {
     github_id: '',
     wechat_id: '',
     email: '',
+    quota: 0,
   });
-  const { username, display_name, password, github_id, wechat_id, email } =
+  const { username, display_name, password, github_id, wechat_id, email, quota } =
     inputs;
   const handleInputChange = (e, { name, value }) => {
     setInputs((inputs) => ({ ...inputs, [name]: value }));
@@ -44,7 +45,11 @@ const EditUser = () => {
   const submit = async () => {
     let res = undefined;
     if (userId) {
-      res = await API.put(`/api/user/`, { ...inputs, id: parseInt(userId) });
+      let data = { ...inputs, id: parseInt(userId) };
+      if (typeof data.quota === 'string') {
+        data.quota = parseInt(data.quota);
+      }
+      res = await API.put(`/api/user/`, data);
     } else {
       res = await API.put(`/api/user/self`, inputs);
     }
@@ -92,6 +97,21 @@ const EditUser = () => {
               autoComplete='new-password'
             />
           </Form.Field>
+          {
+            userId && (
+              <Form.Field>
+                <Form.Input
+                  label='剩余额度'
+                  name='quota'
+                  placeholder={'请输入新的剩余额度'}
+                  onChange={handleInputChange}
+                  value={quota}
+                  type={'number'}
+                  autoComplete='new-password'
+                />
+              </Form.Field>
+            )
+          }
           <Form.Field>
             <Form.Input
               label='已绑定的 GitHub 账户'