summaryrefslogtreecommitdiffstats
path: root/apps/files_external/lib/dropbox.php
blob: f7d8d98cf0334fe406722063b4d127b84d155cb3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
<?php

/**
* ownCloud
*
* @author Michael Gapczynski
* @copyright 2012 Michael Gapczynski mtgap@owncloud.com
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with this library.  If not, see <http://www.gnu.org/licenses/>.
*/

namespace OC\Files\Storage;

require_once __DIR__ . '/../3rdparty/Dropbox/autoload.php';

class Dropbox extends \OC\Files\Storage\Common {

	private $dropbox;
	private $root;
	private $id;
	private $metaData = array();

	private static $tempFiles = array();

	public function __construct($params) {
		if (isset($params['configured']) && $params['configured'] == 'true'
			&& isset($params['app_key'])
			&& isset($params['app_secret'])
			&& isset($params['token'])
			&& isset($params['token_secret'])
		) {
			$this->root = isset($params['root']) ? $params['root'] : '';
			$this->id = 'dropbox::'.$params['app_key'] . $params['token']. '/' . $this->root;
			$oauth = new \Dropbox_OAuth_Curl($params['app_key'], $params['app_secret']);
			$oauth->setToken($params['token'], $params['token_secret']);
			$this->dropbox = new \Dropbox_API($oauth, 'dropbox');
		} else {
			throw new \Exception('Creating \OC\Files\Storage\Dropbox storage failed');
		}
	}

	private function deleteMetaData($path) {
		$path = $this->root.$path;
		if (isset($this->metaData[$path])) {
			unset($this->metaData[$path]);
			return true;
		}
		return false;
	}

	/**
	 * @brief Returns the path's metadata
	 * @param $path path for which to return the metadata
	 * @param $list if true, also return the directory's contents
	 * @return directory contents if $list is true, file metadata if $list is
	 * false, null if the file doesn't exist or "false" if the operation failed
	 */
	private function getMetaData($path, $list = false) {
		$path = $this->root.$path;
		if ( ! $list && isset($this->metaData[$path])) {
			return $this->metaData[$path];
		} else {
			if ($list) {
				try {
					$response = $this->dropbox->getMetaData($path);
				} catch (\Exception $exception) {
					\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
					return false;
				}
				$contents = array();
				if ($response && isset($response['contents'])) {
					// Cache folder's contents
					foreach ($response['contents'] as $file) {
						if (!isset($file['is_deleted']) || !$file['is_deleted']) {
							$this->metaData[$path.'/'.basename($file['path'])] = $file;
							$contents[] = $file;
						}
					}
					unset($response['contents']);
				}
				if (!isset($response['is_deleted']) || !$response['is_deleted']) {
					$this->metaData[$path] = $response;
				}
				// Return contents of folder only
				return $contents;
			} else {
				try {
					$response = $this->dropbox->getMetaData($path, 'false');
					if (!isset($response['is_deleted']) || !$response['is_deleted']) {
						$this->metaData[$path] = $response;
						return $response;
					}
					return null;
				} catch (\Exception $exception) {
					if ($exception instanceof \Dropbox_Exception_NotFound) {
						// don't log, might be a file_exist check
						return false;
					}
					\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
					return false;
				}
			}
		}
	}

	public function getId(){
		return $this->id;
	}

	public function mkdir($path) {
		$path = $this->root.$path;
		try {
			$this->dropbox->createFolder($path);
			return true;
		} catch (\Exception $exception) {
			\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
			return false;
		}
	}

	public function rmdir($path) {
		return $this->unlink($path);
	}

	public function opendir($path) {
		$contents = $this->getMetaData($path, true);
		if ($contents !== false) {
			$files = array();
			foreach ($contents as $file) {
				$files[] = basename($file['path']);
			}
			\OC\Files\Stream\Dir::register('dropbox'.$path, $files);
			return opendir('fakedir://dropbox'.$path);
		}
		return false;
	}

	public function stat($path) {
		$metaData = $this->getMetaData($path);
		if ($metaData) {
			$stat['size'] = $metaData['bytes'];
			$stat['atime'] = time();
			$stat['mtime'] = (isset($metaData['modified'])) ? strtotime($metaData['modified']) : time();
			return $stat;
		}
		return false;
	}

	public function filetype($path) {
		if ($path == '' || $path == '/') {
			return 'dir';
		} else {
			$metaData = $this->getMetaData($path);
			if ($metaData) {
				if ($metaData['is_dir'] == 'true') {
					return 'dir';
				} else {
					return 'file';
				}
			}
		}
		return false;
	}

	public function file_exists($path) {
		if ($path == '' || $path == '/') {
			return true;
		}
		if ($this->getMetaData($path)) {
			return true;
		}
		return false;
	}

	public function unlink($path) {
		try {
			$this->dropbox->delete($this->root.$path);
			$this->deleteMetaData($path);
			return true;
		} catch (\Exception $exception) {
			\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
			return false;
		}
	}

	public function rename($path1, $path2) {
		try {
			// overwrite if target file exists and is not a directory
			$destMetaData = $this->getMetaData($path2);
			if (isset($destMetaData) && $destMetaData !== false && !$destMetaData['is_dir']) {
				$this->unlink($path2);
			}
			$this->dropbox->move($this->root.$path1, $this->root.$path2);
			$this->deleteMetaData($path1);
			return true;
		} catch (\Exception $exception) {
			\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
			return false;
		}
	}

	public function copy($path1, $path2) {
		$path1 = $this->root.$path1;
		$path2 = $this->root.$path2;
		try {
			$this->dropbox->copy($path1, $path2);
			return true;
		} catch (\Exception $exception) {
			\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
			return false;
		}
	}

	public function fopen($path, $mode) {
		$path = $this->root.$path;
		switch ($mode) {
			case 'r':
			case 'rb':
				$tmpFile = \OC_Helper::tmpFile();
				try {
					$data = $this->dropbox->getFile($path);
					file_put_contents($tmpFile, $data);
					return fopen($tmpFile, 'r');
				} catch (\Exception $exception) {
					\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
					return false;
				}
			case 'w':
			case 'wb':
			case 'a':
			case 'ab':
			case 'r+':
			case 'w+':
			case 'wb+':
			case 'a+':
			case 'x':
			case 'x+':
			case 'c':
			case 'c+':
				if (strrpos($path, '.') !== false) {
					$ext = substr($path, strrpos($path, '.'));
				} else {
					$ext = '';
				}
				$tmpFile = \OC_Helper::tmpFile($ext);
				\OC\Files\Stream\Close::registerCallback($tmpFile, array($this, 'writeBack'));
				if ($this->file_exists($path)) {
					$source = $this->fopen($path, 'r');
					file_put_contents($tmpFile, $source);
				}
				self::$tempFiles[$tmpFile] = $path;
				return fopen('close://'.$tmpFile, $mode);
		}
		return false;
	}

	public function writeBack($tmpFile) {
		if (isset(self::$tempFiles[$tmpFile])) {
			$handle = fopen($tmpFile, 'r');
			try {
				$this->dropbox->putFile(self::$tempFiles[$tmpFile], $handle);
				unlink($tmpFile);
			} catch (\Exception $exception) {
				\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
			}
		}
	}

	public function getMimeType($path) {
		if ($this->filetype($path) == 'dir') {
			return 'httpd/unix-directory';
		} else {
			$metaData = $this->getMetaData($path);
			if ($metaData) {
				return $metaData['mime_type'];
			}
		}
		return false;
	}

	public function free_space($path) {
		try {
			$info = $this->dropbox->getAccountInfo();
			return $info['quota_info']['quota'] - $info['quota_info']['normal'];
		} catch (\Exception $exception) {
			\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
			return false;
		}
	}

	public function touch($path, $mtime = null) {
		if ($this->file_exists($path)) {
			return false;
		} else {
			$this->file_put_contents($path, '');
		}
		return true;
	}

}