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2 | daniel-mar | 1 | <?php |
2 | |||
3 | /* |
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4 | * OIDplus 2.0 |
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5 | * Copyright 2019 Daniel Marschall, ViaThinkSoft |
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6 | * |
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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 | |||
227 | daniel-mar | 20 | class OIDplusDoi extends OIDplusObject { |
21 | private $doi; |
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22 | |||
2 | daniel-mar | 23 | public function __construct($doi) { |
16 | daniel-mar | 24 | // TODO: syntax checks |
2 | daniel-mar | 25 | $this->doi = $doi; |
26 | } |
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27 | |||
28 | public static function parse($node_id) { |
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29 | @list($namespace, $doi) = explode(':', $node_id, 2); |
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30 | if ($namespace !== 'doi') return false; |
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31 | return new self($doi); |
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32 | } |
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33 | |||
34 | public static function objectTypeTitle() { |
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360 | daniel-mar | 35 | return _L('Digital Object Identifier (DOI)'); |
2 | daniel-mar | 36 | } |
37 | |||
38 | public static function objectTypeTitleShort() { |
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360 | daniel-mar | 39 | return _L('DOI'); |
2 | daniel-mar | 40 | } |
41 | |||
42 | public static function ns() { |
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43 | return 'doi'; |
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44 | } |
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45 | |||
46 | public static function root() { |
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47 | return 'doi:'; |
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48 | } |
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49 | |||
50 | public function isRoot() { |
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51 | return $this->doi == ''; |
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52 | } |
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53 | |||
247 | daniel-mar | 54 | public function nodeId($with_ns=true) { |
55 | return $with_ns ? 'doi:'.$this->doi : $this->doi; |
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2 | daniel-mar | 56 | } |
57 | |||
58 | public function addString($str) { |
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59 | if ($this->isRoot()) { |
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60 | // Parent is root, so $str is the base DOI (10.xxxx) |
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61 | $base = $str; |
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62 | if (!self::validBaseDoi($base)) { |
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360 | daniel-mar | 63 | throw new OIDplusException(_L('Invalid DOI %1 . It must have syntax 10.xxxx',$base)); |
2 | daniel-mar | 64 | } |
65 | return 'doi:' . $base; |
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66 | } else if (self::validBaseDoi($this->doi)) { |
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67 | // First level: We add a pubilcation to the base |
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68 | return 'doi:' . $this->doi . '/' . $str; |
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69 | } else { |
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70 | // We just add an additional string to the already existing publication, e.g. a graphic reference or chapter |
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71 | return 'doi:' . $this->doi . $str; |
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72 | } |
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73 | } |
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74 | |||
75 | public function crudShowId(OIDplusObject $parent) { |
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76 | return $this->doi; |
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77 | } |
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78 | |||
79 | public function crudInsertPrefix() { |
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80 | return $this->isRoot() ? '' : substr($this->addString(''), strlen(self::ns())+1); |
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81 | } |
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82 | |||
83 | public function jsTreeNodeName(OIDplusObject $parent = null) { |
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84 | if ($parent == null) return $this->objectTypeTitle(); |
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85 | $out = $this->doi; |
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86 | $ary = explode('/', $out, 2); |
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87 | if (count($ary) > 1) $out = $ary[1]; |
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88 | return $out; |
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89 | } |
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90 | |||
91 | public function defaultTitle() { |
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360 | daniel-mar | 92 | return _L('DOI %1',$this->doi); |
2 | daniel-mar | 93 | } |
94 | |||
16 | daniel-mar | 95 | public function isLeafNode() { |
96 | return false; |
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97 | } |
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98 | |||
34 | daniel-mar | 99 | public function getContentPage(&$title, &$content, &$icon) { |
55 | daniel-mar | 100 | $icon = file_exists(__DIR__.'/icon_big.png') ? 'plugins/objectTypes/'.basename(__DIR__).'/icon_big.png' : ''; |
101 | |||
2 | daniel-mar | 102 | if ($this->isRoot()) { |
103 | $title = OIDplusDoi::objectTypeTitle(); |
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104 | |||
261 | daniel-mar | 105 | $res = OIDplus::db()->query("select * from ###objects where parent = ?", array(self::root())); |
236 | daniel-mar | 106 | if ($res->num_rows() > 0) { |
360 | daniel-mar | 107 | $content = _L('Please select an DOI in the tree view at the left to show its contents.'); |
2 | daniel-mar | 108 | } else { |
360 | daniel-mar | 109 | $content = _L('Currently, no DOIs are registered in the system.'); |
2 | daniel-mar | 110 | } |
111 | |||
16 | daniel-mar | 112 | if (!$this->isLeafNode()) { |
113 | if (OIDplus::authUtils()::isAdminLoggedIn()) { |
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360 | daniel-mar | 114 | $content .= '<h2>'._L('Manage your DOIs').'</h2>'; |
16 | daniel-mar | 115 | } else { |
360 | daniel-mar | 116 | $content .= '<h2>'._L('Available DOIs').'</h2>'; |
16 | daniel-mar | 117 | } |
118 | $content .= '%%CRUD%%'; |
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2 | daniel-mar | 119 | } |
120 | } else { |
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192 | daniel-mar | 121 | $title = $this->getTitle(); |
122 | |||
2 | daniel-mar | 123 | $pure = explode(':',$this->nodeId())[1]; |
360 | daniel-mar | 124 | $content = '<h3><a target="_blank" href="https://dx.doi.org/'.htmlentities($pure).'">'._L('Resolve %1',htmlentities($pure)).' </a></h3>'; |
2 | daniel-mar | 125 | |
360 | daniel-mar | 126 | $content .= '<h2>'._L('Description').'</h2>%%DESC%%'; // TODO: add more meta information about the object type |
2 | daniel-mar | 127 | |
16 | daniel-mar | 128 | if (!$this->isLeafNode()) { |
129 | if ($this->userHasWriteRights()) { |
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360 | daniel-mar | 130 | $content .= '<h2>'._L('Create or change subsequent objects').'</h2>'; |
16 | daniel-mar | 131 | } else { |
360 | daniel-mar | 132 | $content .= '<h2>'._L('Subsequent objects').'</h2>'; |
16 | daniel-mar | 133 | } |
134 | $content .= '%%CRUD%%'; |
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2 | daniel-mar | 135 | } |
136 | } |
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137 | } |
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138 | |||
139 | # --- |
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140 | |||
141 | public static function validBaseDoi($doi) { |
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386 | daniel-mar | 142 | $m = array(); |
2 | daniel-mar | 143 | return preg_match('@^10\.\d{4}$@', $doi, $m); |
144 | } |
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20 | daniel-mar | 145 | |
146 | public function one_up() { |
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38 | daniel-mar | 147 | $oid = $this->doi; |
148 | |||
149 | $p = strrpos($oid, '/'); |
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150 | if ($p === false) return $oid; |
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151 | if ($p == 0) return '/'; |
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152 | |||
153 | $oid_up = substr($oid, 0, $p); |
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154 | |||
155 | return self::parse(self::ns().':'.$oid_up); |
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20 | daniel-mar | 156 | } |
157 | |||
158 | public function distance($to) { |
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38 | daniel-mar | 159 | if (!is_object($to)) $to = OIDplusObject::parse($to); |
160 | if (!($to instanceof $this)) return false; |
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161 | |||
162 | $a = $to->doi; |
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163 | $b = $this->doi; |
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164 | |||
165 | if (substr($a,0,1) == '/') $a = substr($a,1); |
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166 | if (substr($b,0,1) == '/') $b = substr($b,1); |
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167 | |||
168 | $ary = explode('/', $a); |
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169 | $bry = explode('/', $b); |
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170 | |||
171 | $min_len = min(count($ary), count($bry)); |
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172 | |||
173 | for ($i=0; $i<$min_len; $i++) { |
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174 | if ($ary[$i] != $bry[$i]) return false; |
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175 | } |
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176 | |||
177 | return count($ary) - count($bry); |
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20 | daniel-mar | 178 | } |
360 | daniel-mar | 179 | } |