初始化环境文件

node_modules/@aws-sdk/middleware-sdk-s3/dist-es/s3-express/classes/S3ExpressIdentityCache.js

@@ -0,0 +1,39 @@
+export class S3ExpressIdentityCache {
+    data;
+    lastPurgeTime = Date.now();
+    static EXPIRED_CREDENTIAL_PURGE_INTERVAL_MS = 30_000;
+    constructor(data = {}) {
+        this.data = data;
+    }
+    get(key) {
+        const entry = this.data[key];
+        if (!entry) {
+            return;
+        }
+        return entry;
+    }
+    set(key, entry) {
+        this.data[key] = entry;
+        return entry;
+    }
+    delete(key) {
+        delete this.data[key];
+    }
+    async purgeExpired() {
+        const now = Date.now();
+        if (this.lastPurgeTime + S3ExpressIdentityCache.EXPIRED_CREDENTIAL_PURGE_INTERVAL_MS > now) {
+            return;
+        }
+        for (const key in this.data) {
+            const entry = this.data[key];
+            if (!entry.isRefreshing) {
+                const credential = await entry.identity;
+                if (credential.expiration) {
+                    if (credential.expiration.getTime() < now) {
+                        delete this.data[key];
+                    }
+                }
+            }
+        }
+    }
+}