doubao support configuration for domain (#3184)

plugins/wasm-go/extensions/ai-proxy/Makefile

@@ -1,4 +1,7 @@
 .DEFAULT:
 build:
 	tinygo build -o ai-proxy.wasm -scheduler=none -target=wasi -gc=custom -tags='custommalloc nottinygc_finalizer proxy_wasm_version_0_2_100' ./main.go
-	mv ai-proxy.wasm ../../../../docker-compose-test/
+	mv ai-proxy.wasm ../../../../docker-compose-test/
+
+build-go:
+	GOOS=wasip1 GOARCH=wasm go build -buildmode=c-shared -o main.wasm main.go

plugins/wasm-go/extensions/ai-proxy/provider/doubao.go

@@ -70,7 +70,11 @@ func (m *doubaoProvider) OnRequestBody(ctx wrapper.HttpContext, apiName ApiName,
 
 func (m *doubaoProvider) TransformRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, headers http.Header) {
 	util.OverwriteRequestPathHeaderByCapability(headers, string(apiName), m.config.capabilities)
-	util.OverwriteRequestHostHeader(headers, doubaoDomain)
+	if m.config.doubaoDomain != "" {
+		util.OverwriteRequestHostHeader(headers, m.config.doubaoDomain)
+	} else {
+		util.OverwriteRequestHostHeader(headers, doubaoDomain)
+	}
 	util.OverwriteRequestAuthorizationHeader(headers, "Bearer "+m.config.GetApiTokenInUse(ctx))
 	headers.Del("Content-Length")
 }

plugins/wasm-go/extensions/ai-proxy/provider/provider.go

@@ -429,6 +429,9 @@ type ProviderConfig struct {
 	// @Title zh-CN vLLM主机地址
 	// @Description zh-CN 仅适用于vLLM服务，指定vLLM服务器的主机地址，例如：vllm-service.cluster.local
 	vllmServerHost string `required:"false" yaml:"vllmServerHost" json:"vllmServerHost"`
+	// @Title zh-CN 豆包服务域名
+	// @Description zh-CN 仅适用于豆包服务，默认转发域名为 ark.cn-beijing.volces.com
+	doubaoDomain string `required:"false" yaml:"doubaoDomain" json:"doubaoDomain"`
 }
 
 func (c *ProviderConfig) GetId() string {
@@ -627,6 +630,7 @@ func (c *ProviderConfig) FromJson(json gjson.Result) {
 	c.genericHost = json.Get("genericHost").String()
 	c.vllmServerHost = json.Get("vllmServerHost").String()
 	c.vllmCustomUrl = json.Get("vllmCustomUrl").String()
+	c.doubaoDomain = json.Get("doubaoDomain").String()
 }
 
 func (c *ProviderConfig) Validate() error {