feat: 从 main 分支迁移 Claude 指纹常量和实例级隔离配置
将 main 分支的 Claude/Anthropic 相关逆向工作迁移到 codex 分支: - claude/constants.go: 添加 4 个新 Beta 常量 + 版本升级至 2.1.84/0.74.0 - config.go: 添加 InstanceSalt 和 FingerprintDefaultsConfig 配置 - identity_service: 版本升级 + instanceSalt 支持 + ApplyDefaultFingerprintOverrides - wire_gen.go: 初始化指纹覆盖 + 使用 NewIdentityServiceWithSalt Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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@ -12,6 +12,7 @@ import (
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"github.com/Wei-Shaw/sub2api/internal/config"
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"github.com/Wei-Shaw/sub2api/internal/handler"
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"github.com/Wei-Shaw/sub2api/internal/handler/admin"
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"github.com/Wei-Shaw/sub2api/internal/pkg/claude"
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"github.com/Wei-Shaw/sub2api/internal/repository"
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"github.com/Wei-Shaw/sub2api/internal/server"
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"github.com/Wei-Shaw/sub2api/internal/server/middleware"
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@ -35,6 +36,10 @@ func initializeApplication(buildInfo handler.BuildInfo) (*Application, error) {
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if err != nil {
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return nil, err
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}
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// 应用实例级指纹覆盖（不同 sub2api 实例可设不同的默认版本号）
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fpd := configConfig.Gateway.FingerprintDefaults
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claude.ApplyFingerprintOverrides(fpd.ClaudeCLIVersion, fpd.StainlessPackageVersion, fpd.StainlessRuntimeVersion, fpd.StainlessOS, fpd.StainlessArch)
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service.ApplyDefaultFingerprintOverrides(fpd.ClaudeCLIVersion, fpd.StainlessPackageVersion, fpd.StainlessRuntimeVersion, fpd.StainlessOS, fpd.StainlessArch)
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client, err := repository.ProvideEnt(configConfig)
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if err != nil {
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return nil, err
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@ -171,7 +176,7 @@ func initializeApplication(buildInfo handler.BuildInfo) (*Application, error) {
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return nil, err
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}
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billingService := service.NewBillingService(configConfig, pricingService)
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identityService := service.NewIdentityService(identityCache)
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identityService := service.NewIdentityServiceWithSalt(identityCache, configConfig.Gateway.InstanceSalt)
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deferredService := service.ProvideDeferredService(accountRepository, timingWheelService)
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claudeTokenProvider := service.ProvideClaudeTokenProvider(accountRepository, geminiTokenCache, oAuthService, oauthRefreshAPI)
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digestSessionStore := service.NewDigestSessionStore()
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@ -456,6 +456,18 @@ type GatewayConfig struct {
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// TLSFingerprint: TLS指纹伪装配置
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TLSFingerprint TLSFingerprintConfig `mapstructure:"tls_fingerprint"`
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// InstanceSalt: 实例级隔离盐值
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// 用于 user_id 重写和 session hash 的种子混淆，
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// 不同 sub2api 实例设置不同的 salt，确保相同输入产生不同输出。
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// 为空时使用默认行为（无 salt），建议生产环境必须配置。
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// 生成方法: openssl rand -hex 32
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InstanceSalt string `mapstructure:"instance_salt"`
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// FingerprintDefaults: 指纹默认值覆盖
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// 允许每个实例配置不同的 Claude CLI 版本号，与其他 sub2api 实例区分。
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// 为空时使用代码内置默认值。
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FingerprintDefaults FingerprintDefaultsConfig `mapstructure:"fingerprint_defaults"`
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// UsageRecord: 使用量记录异步队列配置（有界队列 + 固定 worker）
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UsageRecord GatewayUsageRecordConfig `mapstructure:"usage_record"`
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@ -685,6 +697,23 @@ type TLSProfileConfig struct {
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Extensions []uint16 `mapstructure:"extensions"`
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}
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// FingerprintDefaultsConfig 指纹默认值配置
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// 允许每个 sub2api 实例设置不同的默认指纹值，与其他实例区分。
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// 所有字段为空时使用代码内置默认值。
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type FingerprintDefaultsConfig struct {
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// ClaudeCLIVersion: Claude CLI 版本号（如 "2.1.81"），
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// 最终 User-Agent 为 "claude-cli/{version} (external, cli)"
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ClaudeCLIVersion string `mapstructure:"claude_cli_version"`
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// StainlessPackageVersion: @anthropic-ai/sdk 版本（如 "0.80.0"）
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StainlessPackageVersion string `mapstructure:"stainless_package_version"`
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// StainlessRuntimeVersion: Node.js 版本（如 "v24.13.0"）
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StainlessRuntimeVersion string `mapstructure:"stainless_runtime_version"`
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// StainlessOS: 操作系统（如 "Linux", "Darwin"）
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StainlessOS string `mapstructure:"stainless_os"`
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// StainlessArch: 架构（如 "arm64", "x64"）
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StainlessArch string `mapstructure:"stainless_arch"`
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}
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// GatewaySchedulingConfig accounts scheduling configuration.
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type GatewaySchedulingConfig struct {
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// 粘性会话排队配置
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@ -12,6 +12,10 @@ const (
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BetaTokenCounting = "token-counting-2024-11-01"
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BetaContext1M = "context-1m-2025-08-07"
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BetaFastMode = "fast-mode-2026-02-01"
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BetaRedactThinking = "redact-thinking-2026-02-12"
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BetaContextManagement = "context-management-2025-06-27"
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BetaPromptCachingScope = "prompt-caching-scope-2026-01-05"
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BetaEffort = "effort-2025-11-24"
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)
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// DroppedBetas 是转发时需要从 anthropic-beta header 中移除的 beta token 列表。
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@ -48,19 +52,43 @@ const APIKeyHaikuBetaHeader = BetaInterleavedThinking
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var DefaultHeaders = map[string]string{
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// Keep these in sync with recent Claude CLI traffic to reduce the chance
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// that Claude Code-scoped OAuth credentials are rejected as "non-CLI" usage.
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"User-Agent": "claude-cli/2.1.22 (external, cli)",
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"User-Agent": "claude-cli/2.1.84 (external, cli)",
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"X-Stainless-Lang": "js",
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"X-Stainless-Package-Version": "0.70.0",
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"X-Stainless-OS": "Linux",
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"X-Stainless-Package-Version": "0.74.0",
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"X-Stainless-OS": "MacOS",
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"X-Stainless-Arch": "arm64",
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"X-Stainless-Runtime": "node",
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"X-Stainless-Runtime-Version": "v24.13.0",
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"X-Stainless-Runtime-Version": "v24.3.0",
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"X-Stainless-Retry-Count": "0",
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"X-Stainless-Timeout": "600",
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"X-App": "cli",
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"Anthropic-Dangerous-Direct-Browser-Access": "true",
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}
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// ApplyFingerprintOverrides 用配置覆盖默认指纹值（每个实例可设不同值）
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// cliVersion: Claude CLI 版本（如 "2.1.81"）
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// pkgVersion: SDK 版本（如 "0.80.0"）
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// runtimeVersion: Node.js 版本（如 "v24.13.0"）
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// os_: 操作系统（如 "Linux"）
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// arch: 架构（如 "arm64"）
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func ApplyFingerprintOverrides(cliVersion, pkgVersion, runtimeVersion, os_, arch string) {
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if cliVersion != "" {
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DefaultHeaders["User-Agent"] = "claude-cli/" + cliVersion + " (external, cli)"
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}
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if pkgVersion != "" {
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DefaultHeaders["X-Stainless-Package-Version"] = pkgVersion
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}
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if runtimeVersion != "" {
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DefaultHeaders["X-Stainless-Runtime-Version"] = runtimeVersion
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}
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if os_ != "" {
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DefaultHeaders["X-Stainless-OS"] = os_
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}
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if arch != "" {
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DefaultHeaders["X-Stainless-Arch"] = arch
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}
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}
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// Model 表示一个 Claude 模型
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type Model struct {
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ID string `json:"id"`
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@ -26,13 +26,13 @@ var (
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// 默认指纹值（当客户端未提供时使用）
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var defaultFingerprint = Fingerprint{
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UserAgent: "claude-cli/2.1.22 (external, cli)",
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UserAgent: "claude-cli/2.1.84 (external, cli)",
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StainlessLang: "js",
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StainlessPackageVersion: "0.70.0",
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StainlessOS: "Linux",
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StainlessPackageVersion: "0.74.0",
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StainlessOS: "MacOS",
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StainlessArch: "arm64",
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StainlessRuntime: "node",
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StainlessRuntimeVersion: "v24.13.0",
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StainlessRuntimeVersion: "v24.3.0",
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}
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// Fingerprint represents account fingerprint data
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@ -63,7 +63,8 @@ type IdentityCache interface {
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// IdentityService 管理OAuth账号的请求身份指纹
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type IdentityService struct {
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cache IdentityCache
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cache IdentityCache
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instanceSalt string // 实例级隔离盐值，不同 sub2api 实例产生不同的 hash 输出
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}
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// NewIdentityService 创建新的IdentityService
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@ -242,8 +243,14 @@ func (s *IdentityService) RewriteUserID(body []byte, accountID int64, accountUUI
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sessionTail := parsed.SessionID // 原始session UUID
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// 生成新的session hash: SHA256(accountID::sessionTail) -> UUID格式
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seed := fmt.Sprintf("%d::%s", accountID, sessionTail)
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// 生成新的session hash: SHA256(salt::accountID::sessionTail) -> UUID格式
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// instanceSalt 使不同 sub2api 实例对相同输入产生不同的 hash
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var seed string
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if s.instanceSalt != "" {
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seed = fmt.Sprintf("%s::%d::%s", s.instanceSalt, accountID, sessionTail)
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} else {
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seed = fmt.Sprintf("%d::%s", accountID, sessionTail)
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}
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newSessionHash := generateUUIDFromSeed(seed)
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// 根据客户端版本选择输出格式
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39
backend/internal/service/identity_service_antigravity.go
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39
backend/internal/service/identity_service_antigravity.go
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package service
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// ==============================================================
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// antigravity — identity_service 扩展
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//
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// 此文件包含 Antigravity fork 对 IdentityService 的扩展，
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// 新增了实例级隔离盐值和指纹默认值覆盖功能。
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//
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// 对上游文件 identity_service.go 的最小化改动：
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// - defaultFingerprint 版本号更新
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// - IdentityService struct 新增 instanceSalt 字段
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// ==============================================================
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// ApplyDefaultFingerprintOverrides 用配置覆盖 identity_service 的默认指纹
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// 允许不同部署实例设置不同的 CLI/SDK 版本号，避免所有实例指纹相同
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func ApplyDefaultFingerprintOverrides(cliVersion, pkgVersion, runtimeVersion, os_, arch string) {
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if cliVersion != "" {
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defaultFingerprint.UserAgent = "claude-cli/" + cliVersion + " (external, cli)"
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}
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if pkgVersion != "" {
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defaultFingerprint.StainlessPackageVersion = pkgVersion
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}
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if runtimeVersion != "" {
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defaultFingerprint.StainlessRuntimeVersion = runtimeVersion
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}
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if os_ != "" {
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defaultFingerprint.StainlessOS = os_
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}
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if arch != "" {
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defaultFingerprint.StainlessArch = arch
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}
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}
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// NewIdentityServiceWithSalt 创建带实例盐值的 IdentityService
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// 实例盐值用于 user_id 重写时的 session hash 混淆，
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// 使不同 sub2api 实例对相同输入产生不同的 hash 输出，增加隔离性
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func NewIdentityServiceWithSalt(cache IdentityCache, salt string) *IdentityService {
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return &IdentityService{cache: cache, instanceSalt: salt}
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}
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