Files
xinghuoapi/backend/internal/server/middleware/middleware.go
song b31bfd53ab 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
2025-12-29 16:52:55 +08:00

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package middleware
import (
"context"
"github.com/gin-gonic/gin"
)
// ContextKey 定义上下文键类型
type ContextKey string
const (
// ContextKeyUser 用户上下文键
ContextKeyUser ContextKey = "user"
// ContextKeyUserRole 当前用户角色string
ContextKeyUserRole ContextKey = "user_role"
// ContextKeyApiKey API密钥上下文键
ContextKeyApiKey ContextKey = "api_key"
// ContextKeySubscription 订阅上下文键
ContextKeySubscription ContextKey = "subscription"
// ContextKeyForcePlatform 强制平台(用于 /antigravity 路由)
ContextKeyForcePlatform ContextKey = "force_platform"
)
// ctxKeyForcePlatformStr 用于 request.Context 的字符串 key供 Service 读取)
// 注意service 包中也需要使用相同的字符串 "ctx_force_platform"
const ctxKeyForcePlatformStr = "ctx_force_platform"
// ForcePlatform 返回设置强制平台的中间件
// 同时设置 request.Context供 Service 使用)和 gin.Context供 Handler 快速检查)
func ForcePlatform(platform string) gin.HandlerFunc {
return func(c *gin.Context) {
// 设置到 request.Context使用字符串 key 供 Service 层读取
ctx := context.WithValue(c.Request.Context(), ctxKeyForcePlatformStr, platform)
c.Request = c.Request.WithContext(ctx)
// 同时设置到 gin.Context供 Handler 快速检查
c.Set(string(ContextKeyForcePlatform), platform)
c.Next()
}
}
// HasForcePlatform 检查是否有强制平台(用于 Handler 跳过分组检查)
func HasForcePlatform(c *gin.Context) bool {
_, exists := c.Get(string(ContextKeyForcePlatform))
return exists
}
// GetForcePlatformFromContext 从 gin.Context 获取强制平台
func GetForcePlatformFromContext(c *gin.Context) (string, bool) {
value, exists := c.Get(string(ContextKeyForcePlatform))
if !exists {
return "", false
}
platform, ok := value.(string)
return platform, ok
}
// ErrorResponse 标准错误响应结构
type ErrorResponse struct {
Code string `json:"code"`
Message string `json:"message"`
}
// NewErrorResponse 创建错误响应
func NewErrorResponse(code, message string) ErrorResponse {
return ErrorResponse{
Code: code,
Message: message,
}
}
// AbortWithError 中断请求并返回JSON错误
func AbortWithError(c *gin.Context, statusCode int, code, message string) {
c.JSON(statusCode, NewErrorResponse(code, message))
c.Abort()
}