Merge pull request #76 from Leizhenpeng/feat_custom_domain_name

feat: support custom api domain for reverse proxy

Author: Leizhenpeng

code/config.example.yaml

@@ -13,4 +13,6 @@ HTTPS_PORT: 9001
 USE_HTTPS: false
 CERT_FILE: cert.pem
 KEY_FILE: key.pem
+# openai 地址, 一般不需要修改, 除非你有自己的反向代理
+API_URL: https://api.openai.com
 

code/initialization/config.go

@@ -21,6 +21,7 @@ type Config struct {
 	UseHttps                   bool
 	CertFile                   string
 	KeyFile                    string
+	OpenaiApiUrl               string
 }
 
 func LoadConfig(cfg string) *Config {
@@ -45,6 +46,7 @@ func LoadConfig(cfg string) *Config {
 		UseHttps:                   getViperBoolValue("USE_HTTPS", false),
 		CertFile:                   getViperStringValue("CERT_FILE", "cert.pem"),
 		KeyFile:                    getViperStringValue("KEY_FILE", "key.pem"),
+		OpenaiApiUrl:               getViperStringValue("API_URL", "https://api.openai.com"),
 	}
 
 	return config

code/main.go

@@ -26,7 +26,7 @@ func main() {
 	pflag.Parse()
 	config := initialization.LoadConfig(*cfg)
 	initialization.LoadLarkClient(*config)
-	gpt := services.NewChatGPT(config.OpenaiApiKeys)
+	gpt := services.NewChatGPT(config.OpenaiApiKeys, config.OpenaiApiUrl)
 	handlers.InitHandlers(gpt, *config)
 
 	eventHandler := dispatcher.NewEventDispatcher(

code/services/gpt3.go

@@ -13,7 +13,6 @@ import (
 )
 
 const (
-	BASEURL     = "https://api.openai.com/v1/"
 	maxTokens   = 2000
 	temperature = 0.7
 	engine      = "gpt-3.5-turbo"
@@ -52,6 +51,7 @@ type ChatGPTRequestBody struct {
 type ChatGPT struct {
 	Lb     *loadbalancer.LoadBalancer
 	ApiKey []string
+	ApiUrl string
 }
 
 type ImageGenerationRequestBody struct {
@@ -125,7 +125,7 @@ func (gpt ChatGPT) Completions(msg []Messages) (resp Messages, err error) {
 		PresencePenalty:  0,
 	}
 	gptResponseBody := &ChatGPTResponseBody{}
-	err = gpt.sendRequest(BASEURL+"chat/completions", "POST",
+	err = gpt.sendRequest(gpt.ApiUrl+"/v1/chat/completions", "POST",
 		requestBody, gptResponseBody)
 
 	if err == nil {
@@ -143,7 +143,8 @@ func (gpt ChatGPT) GenerateImage(prompt string, size string, n int) ([]string, e
 	}
 
 	imageResponseBody := &ImageGenerationResponseBody{}
-	err := gpt.sendRequest(BASEURL+"images/generations", "POST", requestBody, imageResponseBody)
+	err := gpt.sendRequest(gpt.ApiUrl+"/v1/images/generations",
+		"POST", requestBody, imageResponseBody)
 
 	if err != nil {
 		return nil, err
@@ -164,10 +165,11 @@ func (gpt ChatGPT) GenerateOneImage(prompt string, size string) (string, error)
 	return b64s[0], nil
 }
 
-func NewChatGPT(apiKeys []string) *ChatGPT {
+func NewChatGPT(apiKeys []string, apiUrl string) *ChatGPT {
 	lb := loadbalancer.NewLoadBalancer(apiKeys)
 	return &ChatGPT{
 		Lb:     lb,
 		ApiKey: apiKeys,
+		ApiUrl: apiUrl,
 	}
 }

code/services/gpt3_test.go

@@ -14,7 +14,7 @@ func TestCompletions(t *testing.T) {
 		{Role: "user", Content: "翻译这段话: The assistant messages help store prior responses. They can also be written by a developer to help give examples of desired behavior."},
 	}
 
-	gpt := NewChatGPT(config.OpenaiApiKeys)
+	gpt := NewChatGPT(config.OpenaiApiKeys, config.OpenaiApiUrl)
 
 	resp, err := gpt.Completions(msgs)
 	if err != nil {
@@ -27,7 +27,7 @@ func TestCompletions(t *testing.T) {
 func TestGenerateOneImage(t *testing.T) {
 	config := initialization.LoadConfig("../config.yaml")
 
-	gpt := NewChatGPT(config.OpenaiApiKeys)
+	gpt := NewChatGPT(config.OpenaiApiKeys, config.OpenaiApiUrl)
 	prompt := "a red apple"
 	size := "256x256"
 

entrypoint.sh

@@ -16,6 +16,7 @@ HTTPS_PORT=${HTTPS_PORT:-""}
 USE_HTTPS=${USE_HTTPS:-""}
 CERT_FILE=${CERT_FILE:-""}
 KEY_FILE=${KEY_FILE:-""}
+API_URL=${API_URL:-""}
 CONFIG_PATH=${CONFIG_PATH:-"config.yaml"}
 
 
@@ -79,6 +80,10 @@ if [ "$KEY_FILE" != "" ] ; then
 sed -i "15c KEY_FILE: $KEY_FILE" $CONFIG_PATH
 fi
 
+if [ "$API_URL" != "" ] ; then
+    sed -i "17c   API_URL: $API_URL" $CONFIG_PATH
+fi
+
 echo -e "\033[32m[Success] Configuration file has been generated!\033[0m"
 
 /dist/feishu_chatgpt

readme.md

@@ -207,6 +207,7 @@ docker run -d --name feishu-chatgpt -p 9000:9000 \
 --env APP_VERIFICATION_TOKEN=xxx \
 --env BOT_NAME=chatGpt \
 --env OPENAI_KEY="sk-xxx1,sk-xxx2,sk-xxx3" \
+--env API_URL=https://api.openai.com \
 feishu-chatgpt:latest
 ```
 
@@ -224,6 +225,7 @@ docker run -d --restart=always --name feishu-chatgpt2 -p 9000:9000 -v /etc/local
 --env APP_VERIFICATION_TOKEN=xxx \
 --env BOT_NAME=chatGpt \
 --env OPENAI_KEY="sk-xxx1,sk-xxx2,sk-xxx3" \
+--env API_URL=https://api.openai.com \
 dockerproxy.com/leizhenpeng/feishu-chatgpt:latest
 ```