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91 lines
2.5 KiB
91 lines
2.5 KiB
package googleiap
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import (
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"context"
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"errors"
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"sync"
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)
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type ISys interface {
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GenerateOrderNo(prefix string) string
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// VerifyProductPurchase 校验一次性商品(in-app product)的购买凭证
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VerifyProductPurchase(ctx context.Context, packageName, productId, purchaseToken string) (bool, error)
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// VerifySubscriptionPurchase 校验订阅商品的购买凭证
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VerifySubscriptionPurchase(ctx context.Context, packageName, subscriptionId, purchaseToken string) (bool, error)
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}
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// defsys 由 OnInit(启动) 与 Reload(运行时热更) 写、各包级函数读,故必须加锁:
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// 无锁并发读写接口值是 data race。
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var (
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mu sync.RWMutex
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defsys ISys
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)
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// ErrNotInited Google 内购未初始化。OnInit 失败时调用方可选择降级;此时包级函数返回本错误,而不是 panic。
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var ErrNotInited = errors.New("googleiap 未初始化:配置缺失或服务账号加载失败")
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func get() ISys {
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mu.RLock()
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defer mu.RUnlock()
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return defsys
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}
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func set(sys ISys) {
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mu.Lock()
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defsys = sys
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mu.Unlock()
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}
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func OnInit(config map[string]interface{}, option ...Option) error {
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sys, err := newSys(newOptions(config, option...))
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if err != nil {
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// 出错时不要给 defsys 赋值,避免「非 nil 接口 + nil 指针」让守卫失效。
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return err
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}
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set(sys)
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return nil
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}
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// Reload 运行时热替换 Google 内购客户端(console 后台改配置后由业务侧调用)。
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// 配置不合法时返回 error 且**保留原客户端不动**;启动时未初始化的场景下,
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// 后台首次配好凭据即经此启用,无需重启。
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func Reload(config map[string]interface{}, option ...Option) error {
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sys, err := newSys(newOptions(config, option...))
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if err != nil {
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return err
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}
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set(sys)
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return nil
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}
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func NewSys(option ...Option) (ISys, error) {
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sys, err := newSys(newOptionsByOption(option...))
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if err != nil {
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return nil, err
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}
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return sys, nil
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}
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func GenerateOrderNo(prefix string) string {
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sys := get()
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if sys == nil {
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return ""
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}
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return sys.GenerateOrderNo(prefix)
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}
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func VerifyProductPurchase(ctx context.Context, packageName, productId, purchaseToken string) (bool, error) {
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sys := get()
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if sys == nil {
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return false, ErrNotInited
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}
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return sys.VerifyProductPurchase(ctx, packageName, productId, purchaseToken)
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}
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func VerifySubscriptionPurchase(ctx context.Context, packageName, subscriptionId, purchaseToken string) (bool, error) {
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sys := get()
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if sys == nil {
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return false, ErrNotInited
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}
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return sys.VerifySubscriptionPurchase(ctx, packageName, subscriptionId, purchaseToken)
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}
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