Verzeichnisstruktur phpBB-3.1.0
- Veröffentlicht
- 27.10.2014
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remote.php
001 <?php
002 /**
003 *
004 * This file is part of the phpBB Forum Software package.
005 *
006 * @copyright (c) phpBB Limited <https://www.phpbb.com>
007 * @license GNU General Public License, version 2 (GPL-2.0)
008 *
009 * For full copyright and license information, please see
010 * the docs/CREDITS.txt file.
011 *
012 */
013
014 namespace phpbb\avatar\driver;
015
016 /**
017 * Handles avatars hosted remotely
018 */
019 class remote extends \phpbb\avatar\driver\driver
020 {
021 /**
022 * {@inheritdoc}
023 */
024 public function get_data($row)
025 {
026 return array(
027 'src' => $row['avatar'],
028 'width' => $row['avatar_width'],
029 'height' => $row['avatar_height'],
030 );
031 }
032
033 /**
034 * {@inheritdoc}
035 */
036 public function prepare_form($request, $template, $user, $row, &$error)
037 {
038 $template->assign_vars(array(
039 'AVATAR_REMOTE_WIDTH' => ((in_array($row['avatar_type'], array(AVATAR_REMOTE, $this->get_name(), 'remote'))) && $row['avatar_width']) ? $row['avatar_width'] : $request->variable('avatar_remote_width', 0),
040 'AVATAR_REMOTE_HEIGHT' => ((in_array($row['avatar_type'], array(AVATAR_REMOTE, $this->get_name(), 'remote'))) && $row['avatar_height']) ? $row['avatar_height'] : $request->variable('avatar_remote_width', 0),
041 'AVATAR_REMOTE_URL' => ((in_array($row['avatar_type'], array(AVATAR_REMOTE, $this->get_name(), 'remote'))) && $row['avatar']) ? $row['avatar'] : '',
042 ));
043
044 return true;
045 }
046
047 /**
048 * {@inheritdoc}
049 */
050 public function process_form($request, $template, $user, $row, &$error)
051 {
052 $url = $request->variable('avatar_remote_url', '');
053 $width = $request->variable('avatar_remote_width', 0);
054 $height = $request->variable('avatar_remote_height', 0);
055
056 if (empty($url))
057 {
058 return false;
059 }
060
061 if (!preg_match('#^(http|https|ftp)://#i', $url))
062 {
063 $url = 'http://' . $url;
064 }
065
066 if (!function_exists('validate_data'))
067 {
068 require($this->phpbb_root_path . 'includes/functions_user.' . $this->php_ext);
069 }
070
071 $validate_array = validate_data(
072 array(
073 'url' => $url,
074 ),
075 array(
076 'url' => array('string', true, 5, 255),
077 )
078 );
079
080 $error = array_merge($error, $validate_array);
081
082 if (!empty($error))
083 {
084 return false;
085 }
086
087 // Check if this url looks alright
088 // This isn't perfect, but it's what phpBB 3.0 did, and might as well make sure everything is compatible
089 if (!preg_match('#^(http|https|ftp)://(?:(.*?\.)*?[a-z0-9\-]+?\.[a-z]{2,4}|(?:\d{1,3}\.){3,5}\d{1,3}):?([0-9]*?).*?\.('. implode('|', $this->allowed_extensions) . ')$#i', $url))
090 {
091 $error[] = 'AVATAR_URL_INVALID';
092 return false;
093 }
094
095 // Make sure getimagesize works...
096 if (function_exists('getimagesize'))
097 {
098 if (($width <= 0 || $height <= 0) && (($image_data = @getimagesize($url)) === false))
099 {
100 $error[] = 'UNABLE_GET_IMAGE_SIZE';
101 return false;
102 }
103
104 if (!empty($image_data) && ($image_data[0] <= 0 || $image_data[1] <= 0))
105 {
106 $error[] = 'AVATAR_NO_SIZE';
107 return false;
108 }
109
110 $width = ($width && $height) ? $width : $image_data[0];
111 $height = ($width && $height) ? $height : $image_data[1];
112 }
113
114 if ($width <= 0 || $height <= 0)
115 {
116 $error[] = 'AVATAR_NO_SIZE';
117 return false;
118 }
119
120 if (!class_exists('fileupload'))
121 {
122 include($this->phpbb_root_path . 'includes/functions_upload.' . $this->php_ext);
123 }
124
125 $types = \fileupload::image_types();
126 $extension = strtolower(\filespec::get_extension($url));
127
128 // Check if this is actually an image
129 if ($file_stream = @fopen($url, 'r'))
130 {
131 // Timeout after 1 second
132 stream_set_timeout($file_stream, 1);
133 // read some data to ensure headers are present
134 fread($file_stream, 1024);
135 $meta = stream_get_meta_data($file_stream);
136
137 if (isset($meta['wrapper_data']['headers']) && is_array($meta['wrapper_data']['headers']))
138 {
139 $headers = $meta['wrapper_data']['headers'];
140 }
141 else if (isset($meta['wrapper_data']) && is_array($meta['wrapper_data']))
142 {
143 $headers = $meta['wrapper_data'];
144 }
145 else
146 {
147 $headers = array();
148 }
149
150 foreach ($headers as $header)
151 {
152 $header = preg_split('/ /', $header, 2);
153 if (strtr(strtolower(trim($header[0], ':')), '_', '-') === 'content-type')
154 {
155 if (strpos($header[1], 'image/') !== 0)
156 {
157 $error[] = 'AVATAR_URL_INVALID';
158 fclose($file_stream);
159 return false;
160 }
161 else
162 {
163 fclose($file_stream);
164 break;
165 }
166 }
167 }
168 }
169 else
170 {
171 $error[] = 'AVATAR_URL_INVALID';
172 return false;
173 }
174
175 if (!empty($image_data) && (!isset($types[$image_data[2]]) || !in_array($extension, $types[$image_data[2]])))
176 {
177 if (!isset($types[$image_data[2]]))
178 {
179 $error[] = 'UNABLE_GET_IMAGE_SIZE';
180 }
181 else
182 {
183 $error[] = array('IMAGE_FILETYPE_MISMATCH', $types[$image_data[2]][0], $extension);
184 }
185
186 return false;
187 }
188
189 if ($this->config['avatar_max_width'] || $this->config['avatar_max_height'])
190 {
191 if ($width > $this->config['avatar_max_width'] || $height > $this->config['avatar_max_height'])
192 {
193 $error[] = array('AVATAR_WRONG_SIZE', $this->config['avatar_min_width'], $this->config['avatar_min_height'], $this->config['avatar_max_width'], $this->config['avatar_max_height'], $width, $height);
194 return false;
195 }
196 }
197
198 if ($this->config['avatar_min_width'] || $this->config['avatar_min_height'])
199 {
200 if ($width < $this->config['avatar_min_width'] || $height < $this->config['avatar_min_height'])
201 {
202 $error[] = array('AVATAR_WRONG_SIZE', $this->config['avatar_min_width'], $this->config['avatar_min_height'], $this->config['avatar_max_width'], $this->config['avatar_max_height'], $width, $height);
203 return false;
204 }
205 }
206
207 return array(
208 'avatar' => $url,
209 'avatar_width' => $width,
210 'avatar_height' => $height,
211 );
212 }
213
214 /**
215 * {@inheritdoc}
216 */
217 public function get_template_name()
218 {
219 return 'ucp_avatar_options_remote.html';
220 }
221 }
222