feat: support 360 ai model (#1243)

Co-authored-by: Kent Dong <ch3cho@qq.com>

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

@@ -134,6 +134,10 @@ Groq 所对应的 `type` 为 `groq`。它并无特有的配置字段。
 
 文心一言所对应的 `type` 为 `baidu`。它并无特有的配置字段。
 
+#### 360智脑
+
+360智脑所对应的 `type` 为 `ai360`。它并无特有的配置字段。
+
 #### MiniMax
 
 MiniMax所对应的 `type` 为 `minimax`。它特有的配置字段如下：
@@ -940,6 +944,77 @@ provider:
 }
 ```
 
+### 使用 OpenAI 协议代理360智脑服务
+
+**配置信息**
+
+```yaml
+provider:
+  type: ai360
+  apiTokens:
+    - "YOUR_MINIMAX_API_TOKEN"
+  modelMapping:
+    "gpt-4o": "360gpt-turbo-responsibility-8k"
+    "gpt-4": "360gpt2-pro"
+    "gpt-3.5": "360gpt-turbo"
+    "*": "360gpt-pro"
+```
+
+**请求示例**
+
+```json
+{
+  "model": "gpt-4o",
+  "messages": [
+    {
+      "role": "system",
+      "content": "你是一个专业的开发人员！"
+    },
+    {
+      "role": "user",
+      "content": "你好，你是谁？"
+    }
+  ]
+}
+```
+
+**响应示例**
+
+```json
+{
+  "choices": [
+    {
+      "message": {
+        "role": "assistant",
+        "content": "你好，我是360智脑，一个大型语言模型。我可以帮助回答各种问题、提供信息、进行对话等。有什么可以帮助你的吗？"
+      },
+      "finish_reason": "",
+      "index": 0
+    }
+  ],
+  "created": 1724257207,
+  "id": "5e5c94a2-d989-40b5-9965-5b971db941fe",
+  "model": "360gpt-turbo",
+  "object": "",
+  "usage": {
+    "completion_tokens": 33,
+    "prompt_tokens": 24,
+    "total_tokens": 57
+  },
+  "messages": [
+    {
+      "role": "system",
+      "content": "你是一个专业的开发人员！"
+    },
+    {
+      "role": "user",
+      "content": "你好，你是谁？"
+    }
+  ],
+  "context": null
+}
+```
+
 ### 使用 OpenAI 协议代理 Cloudflare Workers AI 服务
 
 **配置信息**

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

@@ -0,0 +1,74 @@
+package provider
+
+import (
+	"errors"
+	"github.com/higress-group/proxy-wasm-go-sdk/proxywasm"
+	"github.com/higress-group/proxy-wasm-go-sdk/proxywasm/types"
+
+	"github.com/alibaba/higress/plugins/wasm-go/extensions/ai-proxy/util"
+	"github.com/alibaba/higress/plugins/wasm-go/pkg/wrapper"
+)
+
+// ai360Provider is the provider for 360 OpenAI service.
+const (
+	ai360Domain = "api.360.cn"
+)
+
+type ai360ProviderInitializer struct {
+}
+
+type ai360Provider struct {
+	config       ProviderConfig
+	contextCache *contextCache
+}
+
+func (m *ai360ProviderInitializer) ValidateConfig(config ProviderConfig) error {
+	if config.apiTokens == nil || len(config.apiTokens) == 0 {
+		return errors.New("no apiToken found in provider config")
+	}
+	return nil
+}
+
+func (m *ai360ProviderInitializer) CreateProvider(config ProviderConfig) (Provider, error) {
+	return &ai360Provider{
+		config:       config,
+		contextCache: createContextCache(&config),
+	}, nil
+}
+
+func (m *ai360Provider) GetProviderType() string {
+	return providerTypeAi360
+}
+
+func (m *ai360Provider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) (types.Action, error) {
+	if apiName != ApiNameChatCompletion {
+		return types.ActionContinue, errUnsupportedApiName
+	}
+	_ = util.OverwriteRequestHost(ai360Domain)
+	_ = proxywasm.RemoveHttpRequestHeader("Accept-Encoding")
+	_ = proxywasm.RemoveHttpRequestHeader("Content-Length")
+	_ = proxywasm.ReplaceHttpRequestHeader("Authorization", m.config.GetRandomToken())
+	// Delay the header processing to allow changing streaming mode in OnRequestBody
+	return types.HeaderStopIteration, nil
+}
+
+func (m *ai360Provider) OnRequestBody(ctx wrapper.HttpContext, apiName ApiName, body []byte, log wrapper.Log) (types.Action, error) {
+	if apiName != ApiNameChatCompletion {
+		return types.ActionContinue, errUnsupportedApiName
+	}
+	request := &chatCompletionRequest{}
+	if err := decodeChatCompletionRequest(body, request); err != nil {
+		return types.ActionContinue, err
+	}
+	if request.Model == "" {
+		return types.ActionContinue, errors.New("missing model in chat completion request")
+	}
+	// 映射模型
+	mappedModel := getMappedModel(request.Model, m.config.modelMapping, log)
+	if mappedModel == "" {
+		return types.ActionContinue, errors.New("model becomes empty after applying the configured mapping")
+	}
+	ctx.SetContext(ctxKeyFinalRequestModel, mappedModel)
+	request.Model = mappedModel
+	return types.ActionContinue, replaceJsonRequestBody(request, log)
+}

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

@@ -19,6 +19,7 @@ const (
 
 	providerTypeMoonshot   = "moonshot"
 	providerTypeAzure      = "azure"
+	providerTypeAi360      = "ai360"
 	providerTypeQwen       = "qwen"
 	providerTypeOpenAI     = "openai"
 	providerTypeGroq       = "groq"
@@ -73,6 +74,7 @@ var (
 	providerInitializers = map[string]providerInitializer{
 		providerTypeMoonshot:   &moonshotProviderInitializer{},
 		providerTypeAzure:      &azureProviderInitializer{},
+		providerTypeAi360:      &ai360ProviderInitializer{},
 		providerTypeQwen:       &qwenProviderInitializer{},
 		providerTypeOpenAI:     &openaiProviderInitializer{},
 		providerTypeGroq:       &groqProviderInitializer{},
@@ -235,13 +237,12 @@ func (c *ProviderConfig) FromJson(json gjson.Result) {
 		}
 	}
 	c.targetLang = json.Get("targetLang").String()
-	
+
 	if schemaValue, ok := json.Get("responseJsonSchema").Value().(map[string]interface{}); ok {
 		c.responseJsonSchema = schemaValue
 	} else {
-		c.responseJsonSchema = nil 
+		c.responseJsonSchema = nil
 	}
-	
 
 	c.customSettings = make([]CustomSetting, 0)
 	customSettingsJson := json.Get("customSettings")