feat(antigravity): 添加专用路由,支持仅使用 antigravity 账户
添加 /antigravity/v1/* 和 /antigravity/v1beta/* 路由: - 通过 ForcePlatform 中间件强制使用 antigravity 平台 - 跳过混合调度逻辑,仅调度 antigravity 账户 - 支持按分组优先查找,找不到时回退查询全部 antigravity 账户 修复 context key 类型不匹配问题: - middleware 和 service 统一使用字符串常量 "ctx_force_platform" - 解决 Go context.Value() 类型+值匹配导致的读取失败 其他改动: - 嵌入式前端中间件白名单添加 /antigravity/ 路径 - e2e 测试 Gemini 端点 URL 添加 endpointPrefix 支持
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@@ -1,6 +1,10 @@
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package middleware
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import "github.com/gin-gonic/gin"
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import (
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"context"
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"github.com/gin-gonic/gin"
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)
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// ContextKey 定义上下文键类型
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type ContextKey string
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@@ -14,8 +18,43 @@ const (
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ContextKeyApiKey ContextKey = "api_key"
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// ContextKeySubscription 订阅上下文键
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ContextKeySubscription ContextKey = "subscription"
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// ContextKeyForcePlatform 强制平台(用于 /antigravity 路由)
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ContextKeyForcePlatform ContextKey = "force_platform"
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)
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// ctxKeyForcePlatformStr 用于 request.Context 的字符串 key(供 Service 读取)
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// 注意:service 包中也需要使用相同的字符串 "ctx_force_platform"
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const ctxKeyForcePlatformStr = "ctx_force_platform"
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// ForcePlatform 返回设置强制平台的中间件
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// 同时设置 request.Context(供 Service 使用)和 gin.Context(供 Handler 快速检查)
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func ForcePlatform(platform string) gin.HandlerFunc {
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return func(c *gin.Context) {
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// 设置到 request.Context,使用字符串 key 供 Service 层读取
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ctx := context.WithValue(c.Request.Context(), ctxKeyForcePlatformStr, platform)
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c.Request = c.Request.WithContext(ctx)
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// 同时设置到 gin.Context,供 Handler 快速检查
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c.Set(string(ContextKeyForcePlatform), platform)
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c.Next()
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}
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}
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// HasForcePlatform 检查是否有强制平台(用于 Handler 跳过分组检查)
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func HasForcePlatform(c *gin.Context) bool {
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_, exists := c.Get(string(ContextKeyForcePlatform))
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return exists
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}
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// GetForcePlatformFromContext 从 gin.Context 获取强制平台
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func GetForcePlatformFromContext(c *gin.Context) (string, bool) {
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value, exists := c.Get(string(ContextKeyForcePlatform))
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if !exists {
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return "", false
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}
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platform, ok := value.(string)
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return platform, ok
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}
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// ErrorResponse 标准错误响应结构
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type ErrorResponse struct {
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Code string `json:"code"`
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@@ -40,4 +40,24 @@ func RegisterGatewayRoutes(
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// OpenAI Responses API(不带v1前缀的别名)
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r.POST("/responses", gin.HandlerFunc(apiKeyAuth), h.OpenAIGateway.Responses)
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// Antigravity 专用路由(仅使用 antigravity 账户,不混合调度)
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antigravityV1 := r.Group("/antigravity/v1")
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antigravityV1.Use(middleware.ForcePlatform(service.PlatformAntigravity))
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antigravityV1.Use(gin.HandlerFunc(apiKeyAuth))
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{
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antigravityV1.POST("/messages", h.Gateway.Messages)
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antigravityV1.POST("/messages/count_tokens", h.Gateway.CountTokens)
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antigravityV1.GET("/models", h.Gateway.Models)
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antigravityV1.GET("/usage", h.Gateway.Usage)
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}
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antigravityV1Beta := r.Group("/antigravity/v1beta")
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antigravityV1Beta.Use(middleware.ForcePlatform(service.PlatformAntigravity))
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antigravityV1Beta.Use(middleware.ApiKeyAuthWithSubscriptionGoogle(apiKeyService, subscriptionService))
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{
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antigravityV1Beta.GET("/models", h.Gateway.GeminiV1BetaListModels)
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antigravityV1Beta.GET("/models/:model", h.Gateway.GeminiV1BetaGetModel)
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antigravityV1Beta.POST("/models/*modelAction", h.Gateway.GeminiV1BetaModels)
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}
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}
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