创建版本

2021-02-22 12:17:00 +08:00
commit af555f49c3
2332 changed files with 369202 additions and 0 deletions
@@ -0,0 +1,146 @@
+<?php
+
+namespace Sabre\DAV\FSExt;
+use Sabre\DAV;
+
+/**
+ * File class
+ *
+ * @copyright Copyright (C) 2007-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class File extends Node implements DAV\PartialUpdate\IPatchSupport {
+
+    /**
+     * Updates the data
+     *
+     * data is a readable stream resource.
+     *
+     * @param resource|string $data
+     * @return string
+     */
+    public function put($data) {
+
+        file_put_contents($this->path,$data);
+        return '"' . md5_file($this->path) . '"';
+
+    }
+
+    /**
+     * Updates the file based on a range specification.
+     *
+     * The first argument is the data, which is either a readable stream
+     * resource or a string.
+     *
+     * The second argument is the type of update we're doing.
+     * This is either:
+     * * 1. append
+     * * 2. update based on a start byte
+     * * 3. update based on an end byte
+     *;
+     * The third argument is the start or end byte.
+     *
+     * After a successful put operation, you may choose to return an ETag. The
+     * etag must always be surrounded by double-quotes. These quotes must
+     * appear in the actual string you're returning.
+     *
+     * Clients may use the ETag from a PUT request to later on make sure that
+     * when they update the file, the contents haven't changed in the mean
+     * time.
+     *
+     * @param resource|string $data
+     * @param int $rangeType
+     * @param int $offset
+     * @return string|null
+     */
+    public function patch($data, $rangeType, $offset = null) {
+
+        switch($rangeType) {
+            case 1 :
+                $f = fopen($this->path, 'a');
+                break;
+            case 2 :
+                $f = fopen($this->path, 'c');
+                fseek($f,$offset);
+                break;
+            case 3 :
+                $f = fopen($this->path, 'c');
+                fseek($f, $offset, SEEK_END);
+                break;
+        }
+        if (is_string($data)) {
+            fwrite($f, $data);
+        } else {
+            stream_copy_to_stream($data,$f);
+        }
+        fclose($f);
+        return '"' . md5_file($this->path) . '"';
+
+    }
+
+    /**
+     * Returns the data
+     *
+     * @return resource
+     */
+    public function get() {
+
+        return fopen($this->path,'r');
+
+    }
+
+    /**
+     * Delete the current file
+     *
+     * @return bool
+     */
+    public function delete() {
+
+        unlink($this->path);
+        return parent::delete();
+
+    }
+
+    /**
+     * Returns the ETag for a file
+     *
+     * An ETag is a unique identifier representing the current version of the file. If the file changes, the ETag MUST change.
+     * The ETag is an arbitrary string, but MUST be surrounded by double-quotes.
+     *
+     * Return null if the ETag can not effectively be determined
+     *
+     * @return string|null
+     */
+    public function getETag() {
+
+        return '"' . md5_file($this->path). '"';
+
+    }
+
+    /**
+     * Returns the mime-type for a file
+     *
+     * If null is returned, we'll assume application/octet-stream
+     *
+     * @return string|null
+     */
+    public function getContentType() {
+
+        return null;
+
+    }
+
+    /**
+     * Returns the size of the file, in bytes
+     *
+     * @return int
+     */
+    public function getSize() {
+
+        return filesize($this->path);
+
+    }
+
+}
+