Projektstart

backend/node_modules/@zone-eu/mailsplit/lib/chunked-passthrough.js

@@ -0,0 +1,37 @@
+'use strict';
+
+const { Transform } = require('stream');
+
+class ChunkedPassthrough extends Transform {
+    constructor(options = {}) {
+        let config = {
+            readableObjectMode: true,
+            writableObjectMode: false
+        };
+        super(config);
+        this.chunkSize = options.chunkSize || 64 * 1024; // 64KB default
+        this.buffer = Buffer.alloc(0);
+    }
+
+    _transform(chunk, encoding, callback) {
+        this.buffer = Buffer.concat([this.buffer, chunk]);
+
+        if (this.buffer.length >= this.chunkSize) {
+            this.push(this.buffer);
+            this.buffer = Buffer.alloc(0);
+        }
+
+        callback();
+    }
+
+    _flush(callback) {
+        // Send remaining data
+        if (this.buffer.length > 0) {
+            this.push(this.buffer);
+            this.buffer = Buffer.alloc(0);
+        }
+        callback();
+    }
+}
+
+module.exports = ChunkedPassthrough;