feat(ai-proxy): add Fireworks AI support (#2917)

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

@@ -177,6 +177,10 @@ Grok 所对应的 `type` 为 `grok`。它并无特有的配置字段。
 
 OpenRouter 所对应的 `type` 为 `openrouter`。它并无特有的配置字段。
 
+#### Fireworks AI
+
+Fireworks AI 所对应的 `type` 为 `fireworks`。它并无特有的配置字段。
+
 #### 文心一言（Baidu）
 
 文心一言所对应的 `type` 为 `baidu`。它并无特有的配置字段。
@@ -1018,6 +1022,63 @@ provider:
 }
 ```
 
+### 使用 OpenAI 协议代理 Fireworks AI 服务
+
+**配置信息**
+
+```yaml
+provider:
+  type: fireworks
+  apiTokens:
+    - "YOUR_FIREWORKS_API_TOKEN"
+  modelMapping:
+    "gpt-4": "accounts/fireworks/models/llama-v3p1-70b-instruct"
+    "gpt-3.5-turbo": "accounts/fireworks/models/llama-v3p1-8b-instruct"
+    "*": "accounts/fireworks/models/llama-v3p1-8b-instruct"
+```
+
+**请求示例**
+
+```json
+{
+  "model": "gpt-4",
+  "messages": [
+    {
+      "role": "user",
+      "content": "你好，你是谁？"
+    }
+  ],
+  "temperature": 0.7,
+  "max_tokens": 100
+}
+```
+
+**响应示例**
+
+```json
+{
+  "id": "fw-123456789",
+  "object": "chat.completion",
+  "created": 1699123456,
+  "model": "accounts/fireworks/models/llama-v3p1-70b-instruct",
+  "choices": [
+    {
+      "index": 0,
+      "message": {
+        "role": "assistant",
+        "content": "你好！我是一个由 Fireworks AI 提供的人工智能助手，基于 Llama 3.1 模型。我可以帮助回答问题、进行对话和提供各种信息。有什么我可以帮助你的吗？"
+      },
+      "finish_reason": "stop"
+    }
+  ],
+  "usage": {
+    "prompt_tokens": 15,
+    "completion_tokens": 45,
+    "total_tokens": 60
+  }
+}
+```
+
 ### 使用自动协议兼容功能
 
 插件现在支持自动协议检测，可以同时处理 OpenAI 和 Claude 两种协议格式的请求。
@@ -1982,6 +2043,7 @@ provider:
   }
 }
 ```
+
 ### 使用 OpenAI 协议代理 NVIDIA Triton Interference Server 服务
 
 **配置信息**
@@ -2011,6 +2073,7 @@ providers:
   "stream": false
 }
 ```
+
 **响应示例**
 
 ```json

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

@@ -148,6 +148,10 @@ For Grok, the corresponding `type` is `grok`. It has no unique configuration fie
 
 For OpenRouter, the corresponding `type` is `openrouter`. It has no unique configuration fields.
 
+#### Fireworks AI
+
+For Fireworks AI, the corresponding `type` is `fireworks`. It has no unique configuration fields.
+
 #### ERNIE Bot
 
 For ERNIE Bot, the corresponding `type` is `baidu`. It has no unique configuration fields.
@@ -955,6 +959,63 @@ provider:
 }
 ```
 
+### Using OpenAI Protocol Proxy for Fireworks AI Service
+
+**Configuration Information**
+
+```yaml
+provider:
+  type: fireworks
+  apiTokens:
+    - "YOUR_FIREWORKS_API_TOKEN"
+  modelMapping:
+    "gpt-4": "accounts/fireworks/models/llama-v3p1-70b-instruct"
+    "gpt-3.5-turbo": "accounts/fireworks/models/llama-v3p1-8b-instruct"
+    "*": "accounts/fireworks/models/llama-v3p1-8b-instruct"
+```
+
+**Request Example**
+
+```json
+{
+  "model": "gpt-4",
+  "messages": [
+    {
+      "role": "user",
+      "content": "Hello, who are you?"
+    }
+  ],
+  "temperature": 0.7,
+  "max_tokens": 100
+}
+```
+
+**Response Example**
+
+```json
+{
+  "id": "fw-123456789",
+  "object": "chat.completion",
+  "created": 1699123456,
+  "model": "accounts/fireworks/models/llama-v3p1-70b-instruct",
+  "choices": [
+    {
+      "index": 0,
+      "message": {
+        "role": "assistant",
+        "content": "Hello! I am an AI assistant powered by Fireworks AI, based on the Llama 3.1 model. I can help answer questions, engage in conversations, and provide various information. How can I assist you today?"
+      },
+      "finish_reason": "stop"
+    }
+  ],
+  "usage": {
+    "prompt_tokens": 15,
+    "completion_tokens": 38,
+    "total_tokens": 53
+  }
+}
+```
+
 ### Using Auto Protocol Compatibility
 
 The plugin now supports automatic protocol detection, capable of handling both OpenAI and Claude protocol format requests simultaneously.

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

@@ -103,3 +103,9 @@ func TestAzure(t *testing.T) {
 	test.RunAzureOnHttpResponseHeadersTests(t)
 	test.RunAzureOnHttpResponseBodyTests(t)
 }
+
+func TestFireworks(t *testing.T) {
+	test.RunFireworksParseConfigTests(t)
+	test.RunFireworksOnHttpRequestHeadersTests(t)
+	test.RunFireworksOnHttpRequestBodyTests(t)
+}

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

@@ -0,0 +1,83 @@
+package provider
+
+import (
+	"errors"
+	"net/http"
+	"strings"
+
+	"github.com/alibaba/higress/plugins/wasm-go/extensions/ai-proxy/util"
+	"github.com/higress-group/proxy-wasm-go-sdk/proxywasm/types"
+	"github.com/higress-group/wasm-go/pkg/wrapper"
+)
+
+// fireworksProvider is the provider for Fireworks AI service.
+
+const (
+	fireworksDomain = "api.fireworks.ai"
+)
+
+type fireworksProviderInitializer struct{}
+
+func (f *fireworksProviderInitializer) ValidateConfig(config *ProviderConfig) error {
+	if config.apiTokens == nil || len(config.apiTokens) == 0 {
+		return errors.New("no apiToken found in provider config")
+	}
+	return nil
+}
+
+func (f *fireworksProviderInitializer) DefaultCapabilities() map[string]string {
+	return map[string]string{
+		string(ApiNameChatCompletion): PathOpenAIChatCompletions,
+		string(ApiNameCompletion):     PathOpenAICompletions,
+		string(ApiNameModels):         PathOpenAIModels,
+	}
+}
+
+func (f *fireworksProviderInitializer) CreateProvider(config ProviderConfig) (Provider, error) {
+	config.setDefaultCapabilities(f.DefaultCapabilities())
+	return &fireworksProvider{
+		config:       config,
+		contextCache: createContextCache(&config),
+	}, nil
+}
+
+type fireworksProvider struct {
+	config       ProviderConfig
+	contextCache *contextCache
+}
+
+func (f *fireworksProvider) GetProviderType() string {
+	return providerTypeFireworks
+}
+
+func (f *fireworksProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName) error {
+	f.config.handleRequestHeaders(f, ctx, apiName)
+	return nil
+}
+
+func (f *fireworksProvider) OnRequestBody(ctx wrapper.HttpContext, apiName ApiName, body []byte) (types.Action, error) {
+	if !f.config.isSupportedAPI(apiName) {
+		return types.ActionContinue, errUnsupportedApiName
+	}
+	return f.config.handleRequestBody(f, f.contextCache, ctx, apiName, body)
+}
+
+func (f *fireworksProvider) TransformRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, headers http.Header) {
+	util.OverwriteRequestPathHeaderByCapability(headers, string(apiName), f.config.capabilities)
+	util.OverwriteRequestHostHeader(headers, fireworksDomain)
+	util.OverwriteRequestAuthorizationHeader(headers, "Bearer "+f.config.GetApiTokenInUse(ctx))
+	headers.Del("Content-Length")
+}
+
+func (f *fireworksProvider) GetApiName(path string) ApiName {
+	if strings.Contains(path, PathOpenAIChatCompletions) {
+		return ApiNameChatCompletion
+	}
+	if strings.Contains(path, PathOpenAICompletions) {
+		return ApiNameCompletion
+	}
+	if strings.Contains(path, PathOpenAIModels) {
+		return ApiNameModels
+	}
+	return ""
+}

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

@@ -134,6 +134,7 @@ const (
 	providerTypeTriton     = "triton"
 	providerTypeOpenRouter = "openrouter"
 	providerTypeLongcat    = "longcat"
+	providerTypeFireworks  = "fireworks"
 
 	protocolOpenAI   = "openai"
 	protocolOriginal = "original"
@@ -215,6 +216,7 @@ var (
 		providerTypeTriton:     &tritonProviderInitializer{},
 		providerTypeOpenRouter: &openrouterProviderInitializer{},
 		providerTypeLongcat:    &longcatProviderInitializer{},
+		providerTypeFireworks:  &fireworksProviderInitializer{},
 	}
 )
 

plugins/wasm-go/extensions/ai-proxy/test/fireworks.go

@@ -0,0 +1,354 @@
+package test
+
+import (
+	"encoding/json"
+	"strings"
+	"testing"
+
+	"github.com/higress-group/proxy-wasm-go-sdk/proxywasm/types"
+	"github.com/higress-group/wasm-go/pkg/test"
+	"github.com/stretchr/testify/require"
+)
+
+// 测试配置：基本 Fireworks 配置
+var basicFireworksConfig = func() json.RawMessage {
+	data, _ := json.Marshal(map[string]interface{}{
+		"provider": map[string]interface{}{
+			"type":      "fireworks",
+			"apiTokens": []string{"fw-test123456789"},
+			"modelMapping": map[string]string{
+				"*": "accounts/fireworks/models/llama-v3p1-8b-instruct",
+			},
+		},
+	})
+	return data
+}()
+
+// 测试配置：Fireworks 多模型配置
+var fireworksMultiModelConfig = func() json.RawMessage {
+	data, _ := json.Marshal(map[string]interface{}{
+		"provider": map[string]interface{}{
+			"type":      "fireworks",
+			"apiTokens": []string{"fw-multi-model"},
+			"modelMapping": map[string]string{
+				"gpt-4":         "accounts/fireworks/models/llama-v3p1-70b-instruct",
+				"gpt-3.5-turbo": "accounts/fireworks/models/llama-v3p1-8b-instruct",
+				"*":             "accounts/fireworks/models/llama-v3p1-8b-instruct",
+			},
+		},
+	})
+	return data
+}()
+
+// 测试配置：无效 Fireworks 配置（缺少 apiToken）
+var invalidFireworksConfig = func() json.RawMessage {
+	data, _ := json.Marshal(map[string]interface{}{
+		"provider": map[string]interface{}{
+			"type":         "fireworks",
+			"apiTokens":    []string{},
+			"modelMapping": map[string]string{},
+		},
+	})
+	return data
+}()
+
+// 测试配置：完整 Fireworks 配置
+var completeFireworksConfig = func() json.RawMessage {
+	data, _ := json.Marshal(map[string]interface{}{
+		"provider": map[string]interface{}{
+			"type":      "fireworks",
+			"apiTokens": []string{"fw-complete-test"},
+			"modelMapping": map[string]string{
+				"gpt-4":         "accounts/fireworks/models/llama-v3p1-70b-instruct",
+				"gpt-3.5-turbo": "accounts/fireworks/models/llama-v3p1-8b-instruct",
+				"*":             "accounts/fireworks/models/llama-v3p1-8b-instruct",
+			},
+		},
+	})
+	return data
+}()
+
+// RunFireworksParseConfigTests 测试 Fireworks 配置解析
+func RunFireworksParseConfigTests(t *testing.T) {
+	test.RunGoTest(t, func(t *testing.T) {
+		// 测试基本 Fireworks 配置解析
+		t.Run("basic fireworks config", func(t *testing.T) {
+			host, status := test.NewTestHost(basicFireworksConfig)
+			defer host.Reset()
+			require.Equal(t, types.OnPluginStartStatusOK, status)
+
+			config, err := host.GetMatchConfig()
+			require.NoError(t, err)
+			require.NotNil(t, config)
+		})
+
+		// 测试 Fireworks 多模型配置解析
+		t.Run("fireworks multi model config", func(t *testing.T) {
+			host, status := test.NewTestHost(fireworksMultiModelConfig)
+			defer host.Reset()
+			require.Equal(t, types.OnPluginStartStatusOK, status)
+
+			config, err := host.GetMatchConfig()
+			require.NoError(t, err)
+			require.NotNil(t, config)
+		})
+
+		// 测试无效 Fireworks 配置（缺少 apiToken）
+		t.Run("invalid fireworks config - missing apiToken", func(t *testing.T) {
+			host, status := test.NewTestHost(invalidFireworksConfig)
+			defer host.Reset()
+			require.Equal(t, types.OnPluginStartStatusFailed, status)
+		})
+
+		// 测试完整 Fireworks 配置解析
+		t.Run("fireworks complete config", func(t *testing.T) {
+			host, status := test.NewTestHost(completeFireworksConfig)
+			defer host.Reset()
+			require.Equal(t, types.OnPluginStartStatusOK, status)
+
+			config, err := host.GetMatchConfig()
+			require.NoError(t, err)
+			require.NotNil(t, config)
+		})
+	})
+}
+
+// RunFireworksOnHttpRequestHeadersTests 测试 Fireworks 请求头处理
+func RunFireworksOnHttpRequestHeadersTests(t *testing.T) {
+	test.RunTest(t, func(t *testing.T) {
+		// 测试 Fireworks 聊天完成请求头处理
+		t.Run("fireworks chat completion request headers", func(t *testing.T) {
+			host, status := test.NewTestHost(basicFireworksConfig)
+			defer host.Reset()
+			require.Equal(t, types.OnPluginStartStatusOK, status)
+
+			// 设置请求头
+			action := host.CallOnHttpRequestHeaders([][2]string{
+				{":authority", "example.com"},
+				{":path", "/v1/chat/completions"},
+				{":method", "POST"},
+				{"Content-Type", "application/json"},
+			})
+
+			// 应该返回 HeaderStopIteration，因为需要处理请求体
+			require.Equal(t, types.HeaderStopIteration, action)
+
+			// 验证请求头是否被正确处理
+			requestHeaders := host.GetRequestHeaders()
+			require.NotNil(t, requestHeaders)
+
+			// 验证 Host 是否被改为 Fireworks 域名
+			hostValue, hasHost := test.GetHeaderValue(requestHeaders, ":authority")
+			require.True(t, hasHost, "Host header should exist")
+			require.Equal(t, "api.fireworks.ai", hostValue, "Host should be changed to Fireworks domain")
+
+			// 验证 Authorization 是否被设置
+			authValue, hasAuth := test.GetHeaderValue(requestHeaders, "Authorization")
+			require.True(t, hasAuth, "Authorization header should exist")
+			require.Contains(t, authValue, "Bearer fw-test123456789", "Authorization should contain Fireworks API token with Bearer prefix")
+
+			// 验证 Path 保持 OpenAI 兼容格式
+			pathValue, hasPath := test.GetHeaderValue(requestHeaders, ":path")
+			require.True(t, hasPath, "Path header should exist")
+			require.Equal(t, "/v1/chat/completions", pathValue, "Path should remain OpenAI compatible")
+
+			// 检查是否有相关的处理日志
+			debugLogs := host.GetDebugLogs()
+			hasFireworksLogs := false
+			for _, log := range debugLogs {
+				if strings.Contains(log, "fireworks") || strings.Contains(log, "ai-proxy") {
+					hasFireworksLogs = true
+					break
+				}
+			}
+			require.True(t, hasFireworksLogs, "Should have Fireworks or ai-proxy processing logs")
+		})
+
+		// 测试 Fireworks 文本完成请求头处理
+		t.Run("fireworks completion request headers", func(t *testing.T) {
+			host, status := test.NewTestHost(basicFireworksConfig)
+			defer host.Reset()
+			require.Equal(t, types.OnPluginStartStatusOK, status)
+
+			// 设置请求头
+			action := host.CallOnHttpRequestHeaders([][2]string{
+				{":authority", "example.com"},
+				{":path", "/v1/completions"},
+				{":method", "POST"},
+				{"Content-Type", "application/json"},
+			})
+
+			require.Equal(t, types.HeaderStopIteration, action)
+
+			// 验证请求头处理
+			requestHeaders := host.GetRequestHeaders()
+			require.NotNil(t, requestHeaders)
+
+			// 验证 Host 转换
+			hostValue, hasHost := test.GetHeaderValue(requestHeaders, ":authority")
+			require.True(t, hasHost)
+			require.Equal(t, "api.fireworks.ai", hostValue)
+
+			// 验证 Path 保持 OpenAI 兼容格式
+			pathValue, hasPath := test.GetHeaderValue(requestHeaders, ":path")
+			require.True(t, hasPath)
+			require.Equal(t, "/v1/completions", pathValue, "Path should remain OpenAI compatible for completions")
+
+			// 验证 Authorization 设置
+			authValue, hasAuth := test.GetHeaderValue(requestHeaders, "Authorization")
+			require.True(t, hasAuth, "Authorization header should exist for completions")
+			require.Contains(t, authValue, "Bearer fw-test123456789", "Authorization should contain Fireworks API token")
+		})
+
+		// 测试 Fireworks 模型列表请求头处理
+		t.Run("fireworks models request headers", func(t *testing.T) {
+			host, status := test.NewTestHost(basicFireworksConfig)
+			defer host.Reset()
+			require.Equal(t, types.OnPluginStartStatusOK, status)
+
+			// 设置请求头
+			action := host.CallOnHttpRequestHeaders([][2]string{
+				{":authority", "example.com"},
+				{":path", "/v1/models"},
+				{":method", "GET"},
+			})
+
+			require.Equal(t, types.ActionContinue, action)
+
+			// 验证请求头处理
+			requestHeaders := host.GetRequestHeaders()
+			require.NotNil(t, requestHeaders)
+
+			// 验证 Host 转换
+			hostValue, hasHost := test.GetHeaderValue(requestHeaders, ":authority")
+			require.True(t, hasHost)
+			require.Equal(t, "api.fireworks.ai", hostValue)
+
+			// 验证 Path 保持 OpenAI 兼容格式
+			pathValue, hasPath := test.GetHeaderValue(requestHeaders, ":path")
+			require.True(t, hasPath)
+			require.Equal(t, "/v1/models", pathValue, "Path should remain OpenAI compatible for models")
+
+			// 验证 Authorization 设置
+			authValue, hasAuth := test.GetHeaderValue(requestHeaders, "Authorization")
+			require.True(t, hasAuth, "Authorization header should exist for models")
+			require.Contains(t, authValue, "Bearer fw-test123456789", "Authorization should contain Fireworks API token")
+		})
+	})
+}
+
+// RunFireworksOnHttpRequestBodyTests 测试 Fireworks 请求体处理
+func RunFireworksOnHttpRequestBodyTests(t *testing.T) {
+	test.RunTest(t, func(t *testing.T) {
+		// 测试 Fireworks 聊天完成请求体处理
+		t.Run("fireworks chat completion request body", func(t *testing.T) {
+			host, status := test.NewTestHost(basicFireworksConfig)
+			defer host.Reset()
+			require.Equal(t, types.OnPluginStartStatusOK, status)
+
+			// 设置请求头
+			host.CallOnHttpRequestHeaders([][2]string{
+				{":authority", "example.com"},
+				{":path", "/v1/chat/completions"},
+				{":method", "POST"},
+				{"Content-Type", "application/json"},
+			})
+
+			// 测试请求体
+			requestBody := `{
+				"model": "gpt-3.5-turbo",
+				"messages": [
+					{"role": "user", "content": "Hello, world!"}
+				],
+				"stream": false
+			}`
+
+			action := host.CallOnHttpRequestBody([]byte(requestBody))
+			require.Equal(t, types.ActionContinue, action)
+
+			// 验证请求体被正确处理
+			actualRequestBody := host.GetRequestBody()
+			require.NotNil(t, actualRequestBody)
+
+			// 验证模型映射
+			require.Contains(t, string(actualRequestBody), "accounts/fireworks/models/llama-v3p1-8b-instruct",
+				"Model should be mapped to Fireworks model")
+			require.Contains(t, string(actualRequestBody), "Hello, world!",
+				"Request content should be preserved")
+		})
+
+		// 测试 Fireworks 流式聊天完成请求体处理
+		t.Run("fireworks streaming chat completion request body", func(t *testing.T) {
+			host, status := test.NewTestHost(fireworksMultiModelConfig)
+			defer host.Reset()
+			require.Equal(t, types.OnPluginStartStatusOK, status)
+
+			// 设置请求头
+			host.CallOnHttpRequestHeaders([][2]string{
+				{":authority", "example.com"},
+				{":path", "/v1/chat/completions"},
+				{":method", "POST"},
+				{"Content-Type", "application/json"},
+			})
+
+			// 测试流式请求体
+			requestBody := `{
+				"model": "gpt-4",
+				"messages": [
+					{"role": "user", "content": "Write a poem about AI"}
+				],
+				"stream": true
+			}`
+
+			action := host.CallOnHttpRequestBody([]byte(requestBody))
+			require.Equal(t, types.ActionContinue, action)
+
+			// 验证请求体被正确处理
+			actualRequestBody := host.GetRequestBody()
+			require.NotNil(t, actualRequestBody)
+
+			// 验证模型映射（gpt-4 应该映射到 70b 模型）
+			require.Contains(t, string(actualRequestBody), "accounts/fireworks/models/llama-v3p1-70b-instruct",
+				"GPT-4 should be mapped to Fireworks 70b model")
+			require.Contains(t, string(actualRequestBody), "Write a poem about AI",
+				"Request content should be preserved")
+			require.Contains(t, string(actualRequestBody), `"stream": true`,
+				"Stream flag should be preserved")
+		})
+
+		// 测试 Fireworks 文本完成请求体处理
+		t.Run("fireworks completion request body", func(t *testing.T) {
+			host, status := test.NewTestHost(basicFireworksConfig)
+			defer host.Reset()
+			require.Equal(t, types.OnPluginStartStatusOK, status)
+
+			// 设置请求头
+			host.CallOnHttpRequestHeaders([][2]string{
+				{":authority", "example.com"},
+				{":path", "/v1/completions"},
+				{":method", "POST"},
+				{"Content-Type", "application/json"},
+			})
+
+			// 测试完成请求体
+			requestBody := `{
+				"model": "gpt-3.5-turbo",
+				"prompt": "The future of AI is",
+				"max_tokens": 100
+			}`
+
+			action := host.CallOnHttpRequestBody([]byte(requestBody))
+			require.Equal(t, types.ActionContinue, action)
+
+			// 验证请求体被正确处理
+			actualRequestBody := host.GetRequestBody()
+			require.NotNil(t, actualRequestBody)
+
+			// 验证模型映射
+			require.Contains(t, string(actualRequestBody), "accounts/fireworks/models/llama-v3p1-8b-instruct",
+				"Model should be mapped to Fireworks model")
+			require.Contains(t, string(actualRequestBody), "The future of AI is",
+				"Prompt should be preserved")
+		})
+	})
+}