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044a28cd GJ |
1 | <?php |
2 | /* | |
3 | * Uguu | |
4 | * | |
5156099c | 5 | * @copyright Copyright (c) 2022 Go Johansson (nokonoko) <neku@pomf.se> |
044a28cd GJ |
6 | * |
7 | * This program is free software: you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation, either version 3 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program. If not, see <https://www.gnu.org/licenses/>. | |
19 | */ | |
20 | ||
21 | ||
22 | require_once 'Core.namespace.php'; | |
23 | ||
24 | use Core\Database as Database; | |
044a28cd GJ |
25 | use Core\Settings as Settings; |
26 | ||
27 | class Upload | |
28 | { | |
82202428 | 29 | |
044a28cd GJ |
30 | public static string $FILE_NAME; |
31 | public static string $FILE_EXTENSION; | |
32 | public static string $FILE_MIME; | |
33 | public static string $SHA1; | |
044a28cd GJ |
34 | public static string $NEW_NAME; |
35 | public static string $NEW_NAME_FULL; | |
36 | public static string $IP; | |
044a28cd | 37 | |
82202428 GJ |
38 | public static string $FILE_SIZE; |
39 | public static string $TEMP_FILE; | |
40 | ||
41 | ||
6b16f63c | 42 | public static function reFiles($files): array |
82202428 GJ |
43 | { |
44 | $result = []; | |
45 | $files = self::diverseArray($files); | |
46 | ||
47 | foreach ($files as $file) { | |
48 | self::$FILE_NAME = $file['name']; | |
49 | self::$FILE_SIZE = $file['size']; | |
50 | self::$TEMP_FILE = $file['tmp_name']; | |
45bc029d GJ |
51 | self::$SHA1 = sha1_file(self::$TEMP_FILE); |
52 | $result[] = [self::$FILE_NAME, self::$FILE_SIZE, self::$TEMP_FILE, self::$SHA1]; | |
82202428 GJ |
53 | } |
54 | return $result; | |
55 | } | |
56 | ||
6b16f63c | 57 | public static function diverseArray($files): array |
82202428 GJ |
58 | { |
59 | $result = []; | |
60 | ||
61 | foreach ($files as $key1 => $value1) { | |
62 | foreach ($value1 as $key2 => $value2) { | |
63 | $result[$key2][$key1] = $value2; | |
64 | } | |
65 | } | |
66 | return $result; | |
67 | } | |
68 | ||
4c21cfa0 GJ |
69 | /** |
70 | * @throws Exception | |
71 | */ | |
6b16f63c | 72 | public static function uploadFile(): array |
044a28cd | 73 | { |
6b16f63c GJ |
74 | Settings::loadConfig(); |
75 | self::fileInfo(); | |
82202428 | 76 | |
0a3934c2 | 77 | if (Settings::$BLACKLIST_DB) { |
6b16f63c | 78 | Database::checkFileBlacklist(); |
044a28cd GJ |
79 | } |
80 | ||
0a3934c2 GJ |
81 | if (Settings::$FILTER_MODE) { |
82 | self::checkMimeBlacklist(); | |
83 | self::checkExtensionBlacklist(); | |
84 | } | |
82202428 | 85 | |
0a3934c2 | 86 | if (Settings::$ANTI_DUPE) { |
6b16f63c | 87 | Database::antiDupe(); |
0a3934c2 GJ |
88 | } |
89 | ||
90 | if (!Settings::$ANTI_DUPE) { | |
6b16f63c | 91 | self::generateName(); |
0a3934c2 | 92 | } |
044a28cd | 93 | |
82202428 GJ |
94 | if (!is_dir(Settings::$FILES_ROOT)) { |
95 | throw new Exception('File storage path not accessible.', 500); | |
96 | } | |
97 | ||
98 | if (!move_uploaded_file(self::$TEMP_FILE, Settings::$FILES_ROOT . self::$NEW_NAME_FULL)) { | |
99 | throw new Exception('Failed to move file to destination', 500); | |
044a28cd GJ |
100 | } |
101 | ||
102 | if (!chmod(Settings::$FILES_ROOT . self::$NEW_NAME_FULL, 0644)) { | |
82202428 | 103 | throw new Exception('Failed to change file permissions', 500); |
044a28cd GJ |
104 | } |
105 | ||
6b16f63c | 106 | Database::newIntoDB(); |
044a28cd | 107 | |
82202428 GJ |
108 | if (Settings::$SSL) { |
109 | $preURL = 'https://'; | |
110 | } else { | |
111 | $preURL = 'http://'; | |
112 | } | |
113 | ||
114 | return [ | |
044a28cd GJ |
115 | 'hash' => self::$SHA1, |
116 | 'name' => self::$FILE_NAME, | |
82202428 | 117 | 'url' => $preURL . Settings::$URL . '/' . rawurlencode(self::$NEW_NAME_FULL), |
044a28cd | 118 | 'size' => self::$FILE_SIZE |
82202428 | 119 | ]; |
044a28cd | 120 | } |
0a3934c2 | 121 | |
6b16f63c | 122 | public static function fileInfo() |
8fa8e4d3 GJ |
123 | { |
124 | if (isset($_FILES['files'])) { | |
8fa8e4d3 GJ |
125 | $finfo = finfo_open(FILEINFO_MIME_TYPE); |
126 | self::$FILE_MIME = finfo_file($finfo, self::$TEMP_FILE); | |
0a3934c2 | 127 | $extension = explode('.', self::$FILE_NAME, 2); |
8fa8e4d3 GJ |
128 | self::$FILE_EXTENSION = $extension['1']; |
129 | finfo_close($finfo); | |
044a28cd | 130 | |
8fa8e4d3 GJ |
131 | if (Settings::$LOG_IP) { |
132 | self::$IP = $_SERVER['REMOTE_ADDR']; | |
133 | } else { | |
134 | self::$IP = '0'; | |
135 | } | |
136 | } | |
137 | } | |
0a3934c2 | 138 | |
4c21cfa0 GJ |
139 | /** |
140 | * @throws Exception | |
141 | */ | |
6b16f63c | 142 | public static function checkMimeBlacklist() |
044a28cd | 143 | { |
0a3934c2 GJ |
144 | if (in_array(self::$FILE_MIME, Settings::$BLOCKED_MIME)) { |
145 | throw new Exception('Filetype not allowed.', 415); | |
146 | } | |
147 | } | |
148 | ||
149 | /** | |
2d0bf4f3 GJ |
150 | * Check if file extension is blacklisted |
151 | * if it does throw an exception. | |
152 | * | |
0a3934c2 GJ |
153 | * @throws Exception |
154 | */ | |
6b16f63c | 155 | public static function checkExtensionBlacklist() |
0a3934c2 GJ |
156 | { |
157 | if (in_array(self::$FILE_EXTENSION, Settings::$BLOCKED_EXTENSIONS)) { | |
158 | throw new Exception('Filetype not allowed.', 415); | |
159 | } | |
160 | } | |
044a28cd | 161 | |
0a3934c2 GJ |
162 | /** |
163 | * @throws Exception | |
164 | */ | |
6b16f63c | 165 | public static function generateName() |
0a3934c2 | 166 | { |
044a28cd | 167 | do { |
044a28cd | 168 | if (Settings::$FILES_RETRIES === 0) { |
82202428 | 169 | throw new Exception('Gave up trying to find an unused name!', 500); |
044a28cd GJ |
170 | } |
171 | ||
82202428 | 172 | self::$NEW_NAME = ''; |
044a28cd GJ |
173 | for ($i = 0; $i < Settings::$NAME_LENGTH; ++$i) { |
174 | self::$NEW_NAME .= Settings::$ID_CHARSET[mt_rand(0, strlen(Settings::$ID_CHARSET))]; | |
175 | } | |
176 | ||
0a3934c2 | 177 | if (isset(self::$FILE_EXTENSION)) { |
8fa8e4d3 | 178 | self::$NEW_NAME_FULL = self::$NEW_NAME; |
0a3934c2 | 179 | self::$NEW_NAME_FULL .= '.' . self::$FILE_EXTENSION; |
044a28cd | 180 | } |
6b16f63c | 181 | } while (Database::dbCheckNameExists() > 0); |
044a28cd | 182 | } |
0a3934c2 | 183 | } |