bugfix: plugin will block GET request (#1428)

Author: rinfx

plugins/wasm-go/extensions/ai-security-guard/main.go

@@ -187,10 +187,6 @@ func onHttpRequestHeaders(ctx wrapper.HttpContext, config AISecurityConfig, log
 		log.Debugf("request checking is disabled")
 		ctx.DontReadRequestBody()
 	}
-	if !config.checkResponse {
-		log.Debugf("response checking is disabled")
-		ctx.DontReadResponseBody()
-	}
 	return types.ActionContinue
 }
 
@@ -199,7 +195,7 @@ func onHttpRequestBody(ctx wrapper.HttpContext, config AISecurityConfig, body []
 	content := gjson.GetBytes(body, config.requestContentJsonPath).Raw
 	model := gjson.GetBytes(body, "model").Raw
 	ctx.SetContext("requestModel", model)
-	log.Debugf("Raw response content is: %s", content)
+	log.Debugf("Raw request content is: %s", content)
 	if len(content) > 0 {
 		timestamp := time.Now().UTC().Format("2006-01-02T15:04:05Z")
 		randomID, _ := generateHexID(16)
@@ -321,6 +317,11 @@ func reconvertHeaders(hs map[string][]string) [][2]string {
 }
 
 func onHttpResponseHeaders(ctx wrapper.HttpContext, config AISecurityConfig, log wrapper.Log) types.Action {
+	if !config.checkResponse {
+		log.Debugf("response checking is disabled")
+		ctx.DontReadResponseBody()
+		return types.ActionContinue
+	}
 	headers, err := proxywasm.GetHttpResponseHeaders()
 	if err != nil {
 		log.Warnf("failed to get response headers: %v", err)
@@ -399,7 +400,7 @@ func onHttpResponseBody(ctx wrapper.HttpContext, config AISecurityConfig, body [
 						var jsonData []byte
 						if config.protocolOriginal {
 							jsonData = []byte(denyMessage)
-						} else if strings.Contains(strings.Join(hdsMap["content-type"], ";"), "event-stream") {
+						} else if isStreamingResponse {
 							randomID := generateRandomID()
 							jsonData = []byte(fmt.Sprintf(OpenAIStreamResponseFormat, randomID, model, denyMessage, randomID, model))
 						} else {