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| 844 | daniel-mar | 1 | <?php |
| 2 | |||
| 3 | /* |
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| 4 | * OIDplus 2.0 |
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| 1086 | daniel-mar | 5 | * Copyright 2019 - 2023 Daniel Marschall, ViaThinkSoft |
| 844 | daniel-mar | 6 | * |
| 7 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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| 8 | * you may not use this file except in compliance with the License. |
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| 9 | * You may obtain a copy of the License at |
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| 10 | * |
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| 11 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 12 | * |
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| 13 | * Unless required by applicable law or agreed to in writing, software |
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| 14 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 15 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 16 | * See the License for the specific language governing permissions and |
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| 17 | * limitations under the License. |
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| 18 | */ |
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| 19 | |||
| 1050 | daniel-mar | 20 | namespace ViaThinkSoft\OIDplus; |
| 844 | daniel-mar | 21 | |
| 1086 | daniel-mar | 22 | // phpcs:disable PSR1.Files.SideEffects |
| 23 | \defined('INSIDE_OIDPLUS') or die; |
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| 24 | // phpcs:enable PSR1.Files.SideEffects |
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| 25 | |||
| 844 | daniel-mar | 26 | class OIDplusFourCC extends OIDplusObject { |
| 27 | private $fourcc; |
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| 28 | |||
| 1116 | daniel-mar | 29 | /** |
| 30 | * FourCC Syntax examples: |
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| 31 | * fourcc_transform('8BIM') === array(56,66,73,77); // Adobe Photoshop |
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| 32 | * fourcc_transform('AVI') === array(65,86,73,32); // AVI File (padded with whitespace) |
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| 33 | * fourcc_transform('Y3[10][10]') === array(89,51,10,10); // 10bit Y'CbCr 4:2:2 video |
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| 34 | * Non-FourCC: fourcc_transform returns false. |
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| 35 | * @param string $fourcc |
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| 36 | * @return array|false |
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| 37 | */ |
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| 38 | private function fourcc_transform(string $fourcc) { |
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| 844 | daniel-mar | 39 | $out = array(); |
| 40 | if ($fourcc === '') return false; |
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| 41 | for ($i=0; $i<4; $i++) { |
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| 42 | if (strlen($fourcc) === 0) { |
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| 43 | $out[] = 0x20; // fill with whitespace |
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| 44 | } else { |
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| 45 | if ($fourcc[0] !== '[') { |
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| 46 | $out[] = ord($fourcc[0]); |
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| 47 | $fourcc = substr($fourcc,1); |
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| 48 | } else { |
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| 49 | $p = strpos($fourcc,']'); |
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| 926 | daniel-mar | 50 | $out[] = (int)substr($fourcc,1,$p-1); |
| 844 | daniel-mar | 51 | $fourcc = substr($fourcc,$p+1); |
| 52 | } |
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| 53 | } |
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| 54 | } |
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| 55 | if ($fourcc !== '') return false; |
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| 56 | return $out; |
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| 57 | } |
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| 58 | |||
| 1116 | daniel-mar | 59 | /** |
| 60 | * @param $fourcc |
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| 61 | */ |
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| 844 | daniel-mar | 62 | public function __construct($fourcc) { |
| 63 | if (self::fourcc_transform($fourcc) !== false) { |
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| 64 | $this->fourcc = $fourcc; // leaf node |
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| 65 | } else { |
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| 66 | $this->fourcc = $fourcc; // It is a category name |
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| 67 | } |
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| 68 | } |
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| 69 | |||
| 1116 | daniel-mar | 70 | /** |
| 71 | * @param string $node_id |
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| 72 | * @return OIDplusFourCC|null |
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| 73 | */ |
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| 74 | public static function parse(string $node_id)/*: ?OIDplusFourCC*/ { |
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| 844 | daniel-mar | 75 | @list($namespace, $fourcc) = explode(':', $node_id, 2); |
| 1116 | daniel-mar | 76 | if ($namespace !== self::ns()) return null; |
| 844 | daniel-mar | 77 | return new self($fourcc); |
| 78 | } |
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| 79 | |||
| 1116 | daniel-mar | 80 | /** |
| 81 | * @return string |
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| 82 | */ |
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| 83 | public static function objectTypeTitle(): string { |
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| 844 | daniel-mar | 84 | return _L('Four-Character-Code (FourCC)'); |
| 85 | } |
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| 86 | |||
| 1116 | daniel-mar | 87 | /** |
| 88 | * @return string |
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| 89 | */ |
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| 90 | public static function objectTypeTitleShort(): string { |
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| 844 | daniel-mar | 91 | return _L('FourCC'); |
| 92 | } |
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| 93 | |||
| 1116 | daniel-mar | 94 | /** |
| 95 | * @return string |
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| 96 | */ |
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| 97 | public static function ns(): string { |
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| 844 | daniel-mar | 98 | return 'fourcc'; |
| 99 | } |
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| 100 | |||
| 1116 | daniel-mar | 101 | /** |
| 102 | * @return string |
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| 103 | */ |
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| 104 | public static function root(): string { |
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| 860 | daniel-mar | 105 | return self::ns().':'; |
| 844 | daniel-mar | 106 | } |
| 107 | |||
| 1116 | daniel-mar | 108 | /** |
| 109 | * @return bool |
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| 110 | */ |
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| 111 | public function isRoot(): bool { |
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| 844 | daniel-mar | 112 | return $this->fourcc == ''; |
| 113 | } |
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| 114 | |||
| 1116 | daniel-mar | 115 | /** |
| 116 | * @param bool $with_ns |
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| 117 | * @return string |
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| 118 | */ |
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| 119 | public function nodeId(bool $with_ns=true): string { |
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| 859 | daniel-mar | 120 | return $with_ns ? self::root().$this->fourcc : $this->fourcc; |
| 844 | daniel-mar | 121 | } |
| 122 | |||
| 1116 | daniel-mar | 123 | /** |
| 124 | * @param string $str |
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| 125 | * @return string |
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| 126 | */ |
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| 127 | public function addString(string $str): string { |
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| 845 | daniel-mar | 128 | |
| 129 | // Y3[10] [10] --> Y3[10][10] |
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| 130 | $test_str = trim($str); |
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| 131 | do { |
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| 132 | $test_str2 = $test_str; |
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| 133 | $test_str = str_replace(' [', '[', $test_str); |
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| 134 | $test_str = str_replace('] ', ']', $test_str); |
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| 135 | } while ($test_str2 != $test_str); |
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| 136 | |||
| 137 | if (self::fourcc_transform($test_str) !== false) { |
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| 844 | daniel-mar | 138 | // real FourCC |
| 858 | daniel-mar | 139 | return self::root() . $test_str; |
| 844 | daniel-mar | 140 | } else { |
| 141 | // just a category |
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| 858 | daniel-mar | 142 | if ($this->isRoot()) { |
| 143 | return self::root() . $str; |
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| 144 | } else { |
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| 145 | return $this->nodeId() . '/' . $str; |
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| 146 | } |
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| 844 | daniel-mar | 147 | } |
| 148 | } |
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| 149 | |||
| 1116 | daniel-mar | 150 | /** |
| 151 | * @param OIDplusObject $parent |
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| 152 | * @return string |
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| 153 | */ |
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| 154 | public function crudShowId(OIDplusObject $parent): string { |
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| 850 | daniel-mar | 155 | if ($this->isLeafNode()) { |
| 156 | // We don't parse '/' in a valid FourCC code (i.e. Leaf node) |
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| 157 | return $this->nodeId(false); |
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| 158 | } else { |
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| 159 | if ($parent->isRoot()) { |
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| 160 | return substr($this->nodeId(), strlen($parent->nodeId())); |
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| 161 | } else { |
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| 162 | return substr($this->nodeId(), strlen($parent->nodeId())+1); |
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| 163 | } |
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| 164 | } |
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| 844 | daniel-mar | 165 | } |
| 166 | |||
| 1116 | daniel-mar | 167 | /** |
| 168 | * @param OIDplusObject|null $parent |
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| 169 | * @return string |
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| 170 | */ |
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| 171 | public function jsTreeNodeName(OIDplusObject $parent = null): string { |
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| 844 | daniel-mar | 172 | if ($parent == null) return $this->objectTypeTitle(); |
| 173 | return $this->crudShowId($parent); |
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| 174 | } |
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| 175 | |||
| 1116 | daniel-mar | 176 | /** |
| 177 | * @return string |
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| 178 | */ |
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| 179 | public function defaultTitle(): string { |
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| 844 | daniel-mar | 180 | return $this->fourcc; |
| 181 | } |
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| 182 | |||
| 1116 | daniel-mar | 183 | /** |
| 184 | * @return bool |
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| 185 | */ |
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| 186 | public function isLeafNode(): bool { |
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| 844 | daniel-mar | 187 | return self::fourcc_transform($this->fourcc) !== false; |
| 188 | } |
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| 189 | |||
| 1116 | daniel-mar | 190 | /** |
| 191 | * @return array |
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| 192 | */ |
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| 193 | private function getTechInfo(): array { |
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| 844 | daniel-mar | 194 | $tech_info = array(); |
| 845 | daniel-mar | 195 | $tech_info[_L('FourCC code')] = $this->fourcc; |
| 196 | $tech_info[_L('C/C++ Literal')] = $this->getMultiCharLiteral(); |
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| 844 | daniel-mar | 197 | $tech_info[_L('Hex Dump')] = strtoupper(implode(' ', str_split($this->getHex(true),2))); |
| 1054 | daniel-mar | 198 | $tech_info[_L('Big Endian')] = '0x'.$this->getHex(true).' ('.$this->getInt(true).')'; |
| 199 | $tech_info[_L('Little Endian')] = '0x'.$this->getHex(false).' ('.$this->getInt(false).')'; |
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| 844 | daniel-mar | 200 | return $tech_info; |
| 201 | } |
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| 202 | |||
| 1116 | daniel-mar | 203 | /** |
| 204 | * @param string $title |
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| 205 | * @param string $content |
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| 206 | * @param string $icon |
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| 207 | * @return void |
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| 208 | * @throws OIDplusException |
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| 209 | */ |
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| 210 | public function getContentPage(string &$title, string &$content, string &$icon) { |
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| 844 | daniel-mar | 211 | $icon = file_exists(__DIR__.'/img/main_icon.png') ? OIDplus::webpath(__DIR__,OIDplus::PATH_RELATIVE).'img/main_icon.png' : ''; |
| 212 | |||
| 213 | if ($this->isRoot()) { |
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| 214 | $title = OIDplusFourCC::objectTypeTitle(); |
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| 215 | |||
| 216 | $res = OIDplus::db()->query("select * from ###objects where parent = ?", array(self::root())); |
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| 217 | if ($res->any()) { |
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| 962 | daniel-mar | 218 | $content = '<p>'._L('Please select a FourCC in the tree view at the left to show its contents.').'</p>'; |
| 844 | daniel-mar | 219 | } else { |
| 962 | daniel-mar | 220 | $content = '<p>'._L('Currently, no FourCC is registered in the system.').'</p>'; |
| 844 | daniel-mar | 221 | } |
| 222 | |||
| 223 | if (!$this->isLeafNode()) { |
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| 224 | if (OIDplus::authUtils()->isAdminLoggedIn()) { |
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| 225 | $content .= '<h2>'._L('Manage root objects / categories').'</h2>'; |
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| 226 | } else { |
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| 227 | $content .= '<h2>'._L('Available objects / categories').'</h2>'; |
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| 228 | } |
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| 229 | $content .= '%%CRUD%%'; |
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| 230 | } |
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| 231 | } else { |
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| 232 | $title = $this->getTitle(); |
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| 233 | |||
| 234 | if ($this->isLeafNode()) { |
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| 235 | $tech_info = $this->getTechInfo(); |
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| 236 | $tech_info_html = ''; |
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| 237 | if (count($tech_info) > 0) { |
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| 238 | $tech_info_html .= '<h2>'._L('Technical information').'</h2>'; |
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| 239 | $tech_info_html .= '<table border="0">'; |
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| 240 | foreach ($tech_info as $key => $value) { |
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| 241 | $tech_info_html .= '<tr><td>'.$key.': </td><td><code>'.str_replace(' ',' ',$value).'</code></td></tr>'; |
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| 242 | } |
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| 243 | $tech_info_html .= '</table>'; |
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| 244 | } |
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| 245 | |||
| 246 | $content = $tech_info_html; |
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| 247 | } else { |
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| 248 | $content = ''; |
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| 249 | } |
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| 250 | |||
| 251 | $content .= '<h2>'._L('Description').'</h2>%%DESC%%'; |
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| 252 | |||
| 253 | if (!$this->isLeafNode()) { |
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| 254 | if ($this->userHasWriteRights()) { |
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| 928 | daniel-mar | 255 | $content .= '<h2>'._L('Create or change subordinate objects / categories').'</h2>'; |
| 844 | daniel-mar | 256 | } else { |
| 928 | daniel-mar | 257 | $content .= '<h2>'._L('Subordinate objects / categories').'</h2>'; |
| 844 | daniel-mar | 258 | } |
| 259 | $content .= '%%CRUD%%'; |
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| 260 | } |
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| 261 | } |
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| 262 | } |
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| 263 | |||
| 1116 | daniel-mar | 264 | /** |
| 265 | * @return OIDplusFourCC|null |
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| 266 | */ |
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| 267 | public function one_up()/*: ?OIDplusFourCC*/ { |
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| 844 | daniel-mar | 268 | // A FourCC is a FourCC, there is no hierarchy |
| 1116 | daniel-mar | 269 | return null; |
| 844 | daniel-mar | 270 | } |
| 271 | |||
| 1116 | daniel-mar | 272 | /** |
| 273 | * @param $to |
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| 274 | * @return null |
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| 275 | */ |
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| 844 | daniel-mar | 276 | public function distance($to) { |
| 277 | // Distance between FourCCs is not possible |
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| 278 | return null; |
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| 279 | } |
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| 280 | |||
| 1116 | daniel-mar | 281 | /** |
| 282 | * @return array|OIDplusAltId[] |
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| 283 | * @throws OIDplusException |
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| 284 | */ |
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| 285 | public function getAltIds(): array { |
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| 844 | daniel-mar | 286 | if ($this->isRoot()) return array(); |
| 287 | if (!$this->isLeafNode()) return array(); |
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| 288 | $ids = parent::getAltIds(); |
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| 289 | return $ids; |
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| 290 | } |
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| 291 | |||
| 1116 | daniel-mar | 292 | /** |
| 293 | * @param $big_endian |
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| 294 | * @return false|int|mixed |
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| 295 | */ |
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| 1054 | daniel-mar | 296 | private function getInt($big_endian) { |
| 844 | daniel-mar | 297 | $type = self::fourcc_transform($this->fourcc); |
| 298 | if ($type === false) return false; |
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| 299 | $dec = 0; |
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| 300 | if (!$big_endian) $type = array_reverse($type); |
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| 301 | for ($i=0;$i<4;$i++) $dec = ($dec<<8) + $type[$i]; |
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| 1054 | daniel-mar | 302 | return $dec; |
| 303 | } |
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| 304 | |||
| 1116 | daniel-mar | 305 | /** |
| 306 | * @param $big_endian |
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| 307 | * @return string |
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| 308 | */ |
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| 1054 | daniel-mar | 309 | private function getHex($big_endian) { |
| 310 | $dec = $this->getInt($big_endian); |
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| 844 | daniel-mar | 311 | $hex = str_pad(dechex($dec), 8, "0", STR_PAD_LEFT); |
| 312 | return $hex; |
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| 313 | } |
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| 314 | |||
| 1116 | daniel-mar | 315 | /** |
| 316 | * @return false|string |
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| 317 | */ |
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| 845 | daniel-mar | 318 | private function getMultiCharLiteral() { |
| 844 | daniel-mar | 319 | $type = self::fourcc_transform($this->fourcc); |
| 320 | if ($type === false) return false; |
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| 926 | daniel-mar | 321 | return c_literal($type); |
| 844 | daniel-mar | 322 | } |
| 323 | |||
| 1116 | daniel-mar | 324 | /** |
| 325 | * @return string |
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| 326 | * @throws OIDplusException |
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| 327 | */ |
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| 328 | public function getDirectoryName(): string { |
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| 844 | daniel-mar | 329 | if ($this->isLeafNode()) { |
| 330 | // Leaf (FourCC) |
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| 331 | // Example output: "fourcc_23496d52" for 'fourcc:#ImR' |
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| 332 | return $this->ns().'_'.$this->getHex(true); |
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| 333 | } else { |
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| 334 | // Category |
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| 335 | return parent::getDirectoryName(); |
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| 336 | } |
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| 337 | } |
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| 338 | |||
| 1116 | daniel-mar | 339 | /** |
| 340 | * @param string $mode |
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| 341 | * @return string |
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| 342 | */ |
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| 343 | public static function treeIconFilename(string $mode): string { |
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| 844 | daniel-mar | 344 | return 'img/'.$mode.'_icon16.png'; |
| 345 | } |
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| 850 | daniel-mar | 346 | } |