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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 $TEMP_FILE; | |
40 | ||
41 | ||
42 | public function reFiles($files): array | |
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']; | |
51 | $result[] = [self::$FILE_NAME, self::$FILE_SIZE, self::$TEMP_FILE]; | |
52 | } | |
53 | return $result; | |
54 | } | |
55 | ||
56 | public function diverseArray($files): array | |
57 | { | |
58 | $result = []; | |
59 | ||
60 | foreach ($files as $key1 => $value1) { | |
61 | foreach ($value1 as $key2 => $value2) { | |
62 | $result[$key2][$key1] = $value2; | |
63 | } | |
64 | } | |
65 | return $result; | |
66 | } | |
67 | ||
4c21cfa0 GJ |
68 | /** |
69 | * @throws Exception | |
70 | */ | |
71 | public function uploadFile(): array | |
044a28cd | 72 | { |
82202428 GJ |
73 | (new Settings())->loadConfig(); |
74 | ||
044a28cd GJ |
75 | if (Settings::$ANTI_DUPE) { |
76 | (new Database())->antiDupe(); | |
77 | } | |
78 | ||
4c21cfa0 | 79 | (new Upload())->generateName(); |
82202428 | 80 | |
044a28cd | 81 | |
82202428 GJ |
82 | if (!is_dir(Settings::$FILES_ROOT)) { |
83 | throw new Exception('File storage path not accessible.', 500); | |
84 | } | |
85 | ||
86 | if (!move_uploaded_file(self::$TEMP_FILE, Settings::$FILES_ROOT . self::$NEW_NAME_FULL)) { | |
87 | throw new Exception('Failed to move file to destination', 500); | |
044a28cd GJ |
88 | } |
89 | ||
90 | if (!chmod(Settings::$FILES_ROOT . self::$NEW_NAME_FULL, 0644)) { | |
82202428 | 91 | throw new Exception('Failed to change file permissions', 500); |
044a28cd GJ |
92 | } |
93 | ||
94 | (new Database())->newIntoDB(); | |
95 | ||
82202428 GJ |
96 | if (Settings::$SSL) { |
97 | $preURL = 'https://'; | |
98 | } else { | |
99 | $preURL = 'http://'; | |
100 | } | |
101 | ||
102 | return [ | |
044a28cd GJ |
103 | 'hash' => self::$SHA1, |
104 | 'name' => self::$FILE_NAME, | |
82202428 | 105 | 'url' => $preURL . Settings::$URL . '/' . rawurlencode(self::$NEW_NAME_FULL), |
044a28cd | 106 | 'size' => self::$FILE_SIZE |
82202428 | 107 | ]; |
044a28cd | 108 | } |
8fa8e4d3 GJ |
109 | public function fileInfo() |
110 | { | |
111 | if (isset($_FILES['files'])) { | |
112 | self::$SHA1 = sha1_file(self::$TEMP_FILE); | |
113 | $finfo = finfo_open(FILEINFO_MIME_TYPE); | |
114 | self::$FILE_MIME = finfo_file($finfo, self::$TEMP_FILE); | |
115 | $extension = explode('.',self::$FILE_NAME,2); | |
116 | self::$FILE_EXTENSION = $extension['1']; | |
117 | finfo_close($finfo); | |
044a28cd | 118 | |
8fa8e4d3 GJ |
119 | if (Settings::$LOG_IP) { |
120 | self::$IP = $_SERVER['REMOTE_ADDR']; | |
121 | } else { | |
122 | self::$IP = '0'; | |
123 | } | |
124 | } | |
125 | } | |
4c21cfa0 GJ |
126 | /** |
127 | * @throws Exception | |
128 | */ | |
129 | public function generateName(): string | |
044a28cd | 130 | { |
4c21cfa0 | 131 | (new Upload())->fileInfo(); |
044a28cd GJ |
132 | |
133 | do { | |
044a28cd | 134 | if (Settings::$FILES_RETRIES === 0) { |
82202428 | 135 | throw new Exception('Gave up trying to find an unused name!', 500); |
044a28cd GJ |
136 | } |
137 | ||
82202428 | 138 | self::$NEW_NAME = ''; |
044a28cd GJ |
139 | for ($i = 0; $i < Settings::$NAME_LENGTH; ++$i) { |
140 | self::$NEW_NAME .= Settings::$ID_CHARSET[mt_rand(0, strlen(Settings::$ID_CHARSET))]; | |
141 | } | |
142 | ||
8fa8e4d3 GJ |
143 | if(isset(self::$FILE_EXTENSION)){ |
144 | self::$NEW_NAME_FULL = self::$NEW_NAME; | |
145 | self::$NEW_NAME_FULL .= '.'.self::$FILE_EXTENSION; | |
044a28cd GJ |
146 | } |
147 | ||
044a28cd GJ |
148 | if (Settings::$BLACKLIST_DB) { |
149 | (new Database())->checkFileBlacklist(); | |
150 | } | |
151 | ||
044a28cd GJ |
152 | if (Settings::$FILTER_MODE) { |
153 | self::checkMimeBlacklist(); | |
154 | self::checkExtensionBlacklist(); | |
155 | } | |
156 | } while ((new Database())->dbCheckNameExists() > 0); | |
157 | ||
158 | return self::$NEW_NAME_FULL; | |
159 | } | |
160 | ||
4c21cfa0 GJ |
161 | /** |
162 | * @throws Exception | |
163 | */ | |
044a28cd GJ |
164 | public function checkMimeBlacklist() |
165 | { | |
166 | if (in_array(self::$FILE_MIME, Settings::$BLOCKED_MIME)) { | |
82202428 | 167 | throw new Exception('Filetype not allowed.', 415); |
044a28cd GJ |
168 | } |
169 | } | |
170 | ||
4c21cfa0 GJ |
171 | /** |
172 | * @throws Exception | |
173 | */ | |
82202428 | 174 | public function checkExtensionBlacklist() |
044a28cd GJ |
175 | { |
176 | if (in_array(self::$FILE_EXTENSION, Settings::$BLOCKED_EXTENSIONS)) { | |
82202428 | 177 | throw new Exception('Filetype not allowed.', 415); |
044a28cd | 178 | } |
044a28cd | 179 | } |
82202428 | 180 | } |