ai proxy support passthrough path when api name is unknown (#1754)

plugins/wasm-go/extensions/ai-proxy/README.md

@@ -43,7 +43,7 @@ description: AI 代理插件配置参考
 | `failover`       | object | 非必填   | -      | 配置 apiToken 的 failover 策略，当 apiToken 不可用时，将其移出 apiToken 列表，待健康检测通过后重新添加回 apiToken 列表                                                                      |
 | `retryOnFailure` | object | 非必填   | -      | 当请求失败时立即进行重试                                                                                                                                              |  
 | `capabilities`       | map of string | 非必填   | -      |  部分provider的部分ai能力原生兼容openai/v1格式，不需要重写，可以直接转发，通过此配置项指定来开启转发, key表示的是采用的厂商协议能力，values表示的真实的厂商该能力的api path, 厂商协议能力当前支持: openai/v1/chatcompletions, openai/v1/embeddings, openai/v1/imagegeneration, openai/v1/audiospeech, cohere/v1/rerank |
-| `passthrough`       | bool | 非必填   | -      | 只要是不支持的API能力都直接转发, 此配置是capabilities配置的放大版本，允许任意api透传，就像没有ai-proxy插件一样 |
+
 `context`的配置字段说明如下：
 
 | 名称            | 数据类型   | 填写要求 | 默认值 | 描述                               |

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

@@ -87,8 +87,9 @@ func onHttpRequestHeader(ctx wrapper.HttpContext, pluginConfig config.PluginConf
 	}
 
 	if apiName == "" {
-		log.Warnf("[onHttpRequestHeader] unsupported path: %s", path.Path)
+		ctx.DontReadRequestBody()
-		return types.ActionContinue
+		ctx.DontReadResponseBody()
+		log.Warnf("[onHttpRequestHeader] unsupported path: %s, will not process http path and body", path.Path)
 	}
 
 	ctx.SetContext(provider.CtxKeyApiName, apiName)
@@ -105,11 +106,6 @@ func onHttpRequestHeader(ctx wrapper.HttpContext, pluginConfig config.PluginConf
 
 		err := handler.OnRequestHeaders(ctx, apiName, log)
 		if err != nil {
-			if providerConfig.PassthroughUnsupportedAPI() {
-				log.Warnf("[onHttpRequestHeader] passthrough unsupported API: %v", err)
-				ctx.DontReadRequestBody()
-				return types.ActionContinue
-			}
 			util.ErrorHandler("ai-proxy.proc_req_headers_failed", fmt.Errorf("failed to process request headers: %v", err))
 			return types.ActionContinue
 		}
@@ -156,10 +152,6 @@ func onHttpRequestBody(ctx wrapper.HttpContext, pluginConfig config.PluginConfig
 		if err == nil {
 			return action
 		}
-		if pluginConfig.GetProviderConfig().PassthroughUnsupportedAPI() {
-			log.Warnf("[onHttpRequestBody] passthrough unsupported API: %v", err)
-			return types.ActionContinue
-		}
 		util.ErrorHandler("ai-proxy.proc_req_body_failed", fmt.Errorf("failed to process request body: %v", err))
 	}
 	return types.ActionContinue

plugins/wasm-go/extensions/ai-proxy/provider/ai360.go

@@ -49,9 +49,6 @@ func (m *ai360Provider) GetProviderType() string {
 }
 
 func (m *ai360Provider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !m.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	m.config.handleRequestHeaders(m, ctx, apiName, log)
 	// Delay the header processing to allow changing streaming mode in OnRequestBody
 	return nil

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

@@ -63,9 +63,6 @@ func (m *azureProvider) GetProviderType() string {
 }
 
 func (m *azureProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !m.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	m.config.handleRequestHeaders(m, ctx, apiName, log)
 	return nil
 }
@@ -78,21 +75,23 @@ func (m *azureProvider) OnRequestBody(ctx wrapper.HttpContext, apiName ApiName,
 }
 
 func (m *azureProvider) TransformRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, headers http.Header, log wrapper.Log) {
-	u, e := url.Parse(ctx.Path())
+	if apiName != "" {
-	if e == nil {
+		u, e := url.Parse(ctx.Path())
-		customApiVersion := u.Query().Get("api-version")
+		if e == nil {
-		if customApiVersion == "" {
+			customApiVersion := u.Query().Get("api-version")
-			util.OverwriteRequestPathHeader(headers, m.serviceUrl.RequestURI())
+			if customApiVersion == "" {
+				util.OverwriteRequestPathHeader(headers, m.serviceUrl.RequestURI())
+			} else {
+				q := m.serviceUrl.Query()
+				q.Set("api-version", customApiVersion)
+				newUrl := *m.serviceUrl
+				newUrl.RawQuery = q.Encode()
+				util.OverwriteRequestPathHeader(headers, newUrl.RequestURI())
+			}
 		} else {
-			q := m.serviceUrl.Query()
+			log.Errorf("failed to parse request path: %v", e)
-			q.Set("api-version", customApiVersion)
+			util.OverwriteRequestPathHeader(headers, m.serviceUrl.RequestURI())
-			newUrl := *m.serviceUrl
-			newUrl.RawQuery = q.Encode()
-			util.OverwriteRequestPathHeader(headers, newUrl.RequestURI())
 		}
-	} else {
-		log.Errorf("failed to parse request path: %v", e)
-		util.OverwriteRequestPathHeader(headers, m.serviceUrl.RequestURI())
 	}
 	util.OverwriteRequestHostHeader(headers, m.serviceUrl.Host)
 	headers.Set("api-key", m.config.GetApiTokenInUse(ctx))

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

@@ -50,9 +50,6 @@ func (m *baichuanProvider) GetProviderType() string {
 }
 
 func (m *baichuanProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !m.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	m.config.handleRequestHeaders(m, ctx, apiName, log)
 	return nil
 }

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

@@ -51,9 +51,6 @@ func (g *baiduProvider) GetProviderType() string {
 }
 
 func (g *baiduProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !g.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	g.config.handleRequestHeaders(g, ctx, apiName, log)
 	return nil
 }

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

@@ -111,9 +111,6 @@ func (c *claudeProvider) GetProviderType() string {
 }
 
 func (c *claudeProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !c.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	c.config.handleRequestHeaders(c, ctx, apiName, log)
 	return nil
 }

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

@@ -49,9 +49,6 @@ func (c *cloudflareProvider) GetProviderType() string {
 }
 
 func (c *cloudflareProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !c.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	c.config.handleRequestHeaders(c, ctx, apiName, log)
 	return nil
 }

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

@@ -66,9 +66,6 @@ func (m *cohereProvider) GetProviderType() string {
 }
 
 func (m *cohereProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !m.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	m.config.handleRequestHeaders(m, ctx, apiName, log)
 	return nil
 }

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

@@ -83,15 +83,16 @@ func (d *deeplProvider) GetProviderType() string {
 }
 
 func (d *deeplProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !d.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	d.config.handleRequestHeaders(d, ctx, apiName, log)
 	return nil
 }
 
 func (d *deeplProvider) TransformRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, headers http.Header, log wrapper.Log) {
-	util.OverwriteRequestPathHeader(headers, deeplChatCompletionPath)
+	if apiName != "" {
+		util.OverwriteRequestPathHeader(headers, deeplChatCompletionPath)
+	}
+	// TODO: Support default host through configuration
+	util.OverwriteRequestHostHeader(headers, deeplHostFree)
 	util.OverwriteRequestAuthorizationHeader(headers, "DeepL-Auth-Key "+d.config.GetApiTokenInUse(ctx))
 }
 

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

@@ -52,9 +52,6 @@ func (m *deepseekProvider) GetProviderType() string {
 }
 
 func (m *deepseekProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !m.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	m.config.handleRequestHeaders(m, ctx, apiName, log)
 	return nil
 }

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

@@ -51,9 +51,6 @@ func (d *difyProvider) GetProviderType() string {
 }
 
 func (d *difyProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if apiName != ApiNameChatCompletion {
-		return errUnsupportedApiName
-	}
 	d.config.handleRequestHeaders(d, ctx, apiName, log)
 	return nil
 }

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

@@ -50,9 +50,6 @@ func (m *doubaoProvider) GetProviderType() string {
 }
 
 func (m *doubaoProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !m.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	m.config.handleRequestHeaders(m, ctx, apiName, log)
 	return nil
 }

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

@@ -57,9 +57,6 @@ func (g *geminiProvider) GetProviderType() string {
 }
 
 func (g *geminiProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !g.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	g.config.handleRequestHeaders(g, ctx, apiName, log)
 	// Delay the header processing to allow changing streaming mode in OnRequestBody
 	return nil

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

@@ -52,9 +52,6 @@ func (m *githubProvider) GetProviderType() string {
 }
 
 func (m *githubProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !m.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	m.config.handleRequestHeaders(m, ctx, apiName, log)
 	// Delay the header processing to allow changing streaming mode in OnRequestBody
 	return nil

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

@@ -49,9 +49,6 @@ func (g *groqProvider) GetProviderType() string {
 }
 
 func (g *groqProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !g.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	g.config.handleRequestHeaders(g, ctx, apiName, log)
 	return nil
 }

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

@@ -136,9 +136,6 @@ func (m *hunyuanProvider) useOpenAICompatibleAPI() bool {
 }
 
 func (m *hunyuanProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !m.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	m.config.handleRequestHeaders(m, ctx, apiName, log)
 	// Delay the header processing to allow changing streaming mode in OnRequestBody
 	return nil

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

@@ -74,9 +74,6 @@ func (m *minimaxProvider) GetProviderType() string {
 }
 
 func (m *minimaxProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !m.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	m.config.handleRequestHeaders(m, ctx, apiName, log)
 	// Delay the header processing to allow changing streaming mode in OnRequestBody
 	return nil

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

@@ -48,9 +48,6 @@ func (m *mistralProvider) GetProviderType() string {
 }
 
 func (m *mistralProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !m.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	m.config.handleRequestHeaders(m, ctx, apiName, log)
 	return nil
 }

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

@@ -64,9 +64,6 @@ func (m *moonshotProvider) GetProviderType() string {
 }
 
 func (m *moonshotProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !m.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	m.config.handleRequestHeaders(m, ctx, apiName, log)
 	return nil
 }

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

@@ -54,9 +54,6 @@ func (m *ollamaProvider) GetProviderType() string {
 }
 
 func (m *ollamaProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !m.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	m.config.handleRequestHeaders(m, ctx, apiName, log)
 	return nil
 }

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

@@ -265,9 +265,6 @@ type ProviderConfig struct {
 	// @Title zh-CN 额外支持的ai能力
 	// @Description zh-CN 开放的ai能力和urlpath映射，例如： {"openai/v1/chatcompletions": "/v1/chat/completions"}
 	capabilities map[string]string
-	// @Title zh-CN 是否开启透传
-	// @Description zh-CN 如果是插件不支持的API，是否透传请求, 默认为false
-	passthrough bool
 }
 
 func (c *ProviderConfig) GetId() string {
@@ -453,10 +450,6 @@ func (c *ProviderConfig) ReplaceByCustomSettings(body []byte) ([]byte, error) {
 	return ReplaceByCustomSettings(body, c.customSettings)
 }
 
-func (c *ProviderConfig) PassthroughUnsupportedAPI() bool {
-	return c.passthrough
-}
-
 func CreateProvider(pc ProviderConfig) (Provider, error) {
 	initializer, has := providerInitializers[pc.typ]
 	if !has {

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

@@ -104,10 +104,6 @@ func (m *qwenProvider) GetProviderType() string {
 }
 
 func (m *qwenProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !m.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
-
 	m.config.handleRequestHeaders(m, ctx, apiName, log)
 
 	if m.config.protocol == protocolOriginal {

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

@@ -74,9 +74,6 @@ func (p *sparkProvider) GetProviderType() string {
 }
 
 func (p *sparkProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !p.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	p.config.handleRequestHeaders(p, ctx, apiName, log)
 	return nil
 }

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

@@ -49,9 +49,6 @@ func (m *stepfunProvider) GetProviderType() string {
 }
 
 func (m *stepfunProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !m.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	m.config.handleRequestHeaders(m, ctx, apiName, log)
 	return nil
 }

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

@@ -48,9 +48,6 @@ func (m *togetherAIProvider) GetProviderType() string {
 }
 
 func (m *togetherAIProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !m.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	m.config.handleRequestHeaders(m, ctx, apiName, log)
 	return nil
 }

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

@@ -48,9 +48,6 @@ func (m *yiProvider) GetProviderType() string {
 }
 
 func (m *yiProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !m.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	m.config.handleRequestHeaders(m, ctx, apiName, log)
 	return nil
 }

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

@@ -50,9 +50,6 @@ func (m *zhipuAiProvider) GetProviderType() string {
 }
 
 func (m *zhipuAiProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) error {
-	if !m.config.isSupportedAPI(apiName) {
-		return errUnsupportedApiName
-	}
 	m.config.handleRequestHeaders(m, ctx, apiName, log)
 	return nil
 }