取消https验证，并添加vendor文件夹。

vendor/league/flysystem/src/Adapter/Polyfill/StreamedReadingTrait.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace League\Flysystem\Adapter\Polyfill;
+
+/**
+ * A helper for adapters that only handle strings to provide read streams.
+ */
+trait StreamedReadingTrait
+{
+    /**
+     * Reads a file as a stream.
+     *
+     * @param string $path
+     *
+     * @return array|false
+     *
+     * @see League\Flysystem\ReadInterface::readStream()
+     */
+    public function readStream($path)
+    {
+        if ( ! $data = $this->read($path)) {
+            return false;
+        }
+
+        $stream = fopen('php://temp', 'w+b');
+        fwrite($stream, $data['contents']);
+        rewind($stream);
+        $data['stream'] = $stream;
+        unset($data['contents']);
+
+        return $data;
+    }
+
+    /**
+     * Reads a file.
+     *
+     * @param string $path
+     *
+     * @return array|false
+     *
+     * @see League\Flysystem\ReadInterface::read()
+     */
+    abstract public function read($path);
+}