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<?php |
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namespace dokuwiki\Ui; |
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/** |
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* DokuWiki Diff Interface |
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* parent class of PageDiff and MediaDiff |
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* |
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* @package dokuwiki\Ui |
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*/ |
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abstract class Diff extends Ui |
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{ |
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/* @var string */ |
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protected $id; // page id or media id |
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protected $item; // page or media |
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/* @var int */ |
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protected $oldRev; // timestamp of older revision, left side |
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protected $newRev; // timestamp of newer revision, right side |
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protected $last_rev; // current revision, or last revision when it had removed |
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/* @var array */ |
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protected $preference = []; |
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/* @var ChangeLog */ |
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protected $changelog; // PageChangeLog or MediaChangeLog object |
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/** |
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* Diff Ui constructor |
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* |
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* @param string $id page id or media id |
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*/ |
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public function __construct($id) |
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{ |
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$this->id = $id; |
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$this->setChangeLog(); |
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} |
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/** |
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* set class property changelog |
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*/ |
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abstract protected function setChangeLog(); |
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/** |
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* item filename resolver |
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* |
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* @param string $id page id or media id |
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* @param int|string $rev revision timestamp, or empty string for current one |
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* @return string full path |
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*/ |
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abstract protected function itemFN($id, $rev = ''); |
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/** |
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* Set a pair of revisions to be compared |
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* |
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* @param int $oldRev |
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* @param int $newRev |
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* @return $this |
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*/ |
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public function compare($oldRev, $newRev) |
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{ |
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$this->oldRev = $oldRev; |
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$this->newRev = $newRev; |
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return $this; |
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} |
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/** |
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* Gets or Sets preference of the Ui\Diff object |
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* |
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* @param string|array $prefs a key name or key-value pair(s) |
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* @param mixed $value value used when the first args is string |
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* @return array|$this |
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*/ |
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public function preference($prefs = null, $value = null) |
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{ |
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// set |
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if (is_string($prefs) && isset($value)) { |
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$this->preference[$prefs] = $value; |
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return $this; |
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} elseif (is_array($prefs)) { |
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foreach ($prefs as $name => $value) { |
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$this->preference[$name] = $value; |
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} |
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return $this; |
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} |
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// get |
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return $this->preference; |
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} |
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/** |
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* Retrieve requested revision(s) and difftype from Ui\Revisions |
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* |
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* @return void |
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*/ |
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protected function preProcess() |
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{ |
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global $INPUT; |
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// difflink icon click, eg. ?rev=123456789&do=diff |
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if ($INPUT->has('rev')) { |
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$this->oldRev = $INPUT->int('rev'); |
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$this->newRev = ''; // current revision |
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} |
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// submit button with two checked boxes |
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$rev2 = $INPUT->arr('rev2', []); |
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if (count($rev2) > 1) { |
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if ($rev2[0] == 'current') { |
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[$this->oldRev, $this->newRev] = [$rev2[1], '']; |
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} elseif ($rev2[1] == 'current') { |
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[$this->oldRev, $this->newRev] = [$rev2[0], '']; |
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} elseif ($rev2[0] < $rev2[1]) { |
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[$this->oldRev, $this->newRev] = [$rev2[0], $rev2[1]]; |
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} else { |
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[$this->oldRev, $this->newRev] = [$rev2[1], $rev2[0]]; |
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} |
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} |
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// diff view type |
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if ($INPUT->has('difftype')) { |
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// retrieve requested $difftype |
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$this->preference['difftype'] = $INPUT->str('difftype'); |
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} else { |
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// read preference from DokuWiki cookie. PageDiff only |
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get_doku_pref('difftype', $mode); |
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if (isset($mode)) $this->preference['difftype'] = $mode; |
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} |
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} |
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/** |
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* get extended revision info |
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* |
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* @param int|string $rev revision identifier, '' means current one |
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* @return array revision info structure of a page or media file |
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*/ |
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protected function getExtendedRevisionInfo($rev) |
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{ |
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$changelog =& $this->changelog; |
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if ($rev) { |
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$info = $changelog->getRevisionInfo($rev); |
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} elseif (file_exists($filename = $this->itemFN($this->id))) { |
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$rev = filemtime(fullpath($filename)); |
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$info = $changelog->getRevisionInfo($rev) + array( |
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'current' => true, |
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); |
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} else { // once exists, but now removed |
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$info = array( |
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'current' => true, |
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); |
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} |
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return array('item' => $this->item) + $info; |
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} |
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/** |
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* Build header of diff HTML |
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* |
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* @param string $l_rev Left revisions |
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* @param string $r_rev Right revision |
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* @return string[] HTML snippets for diff header |
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* @deprecated 2020-12-31 |
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*/ |
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public function buildDiffHead($l_rev, $r_rev) |
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{ |
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dbg_deprecated('not used see '. \dokuwiki\Ui\PageDiff::class .'::show()'); |
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} |
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} |
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splitbrain /
dokuwiki
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This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.