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<?php |
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/** |
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* This file contains only the Page class. |
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*/ |
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declare(strict_types = 1); |
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namespace App\Model; |
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use DateTime; |
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use Doctrine\DBAL\Driver\ResultStatement; |
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/** |
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* A Page is a single wiki page in one project. |
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*/ |
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class Page extends Model |
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{ |
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/** @var string The page name as provided at instantiation. */ |
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protected $unnormalizedPageName; |
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/** @var string[] Metadata about this page. */ |
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protected $pageInfo = []; |
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/** @var string[] Revision history of this page. */ |
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protected $revisions; |
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/** @var int Number of revisions for this page. */ |
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protected $numRevisions; |
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/** @var string[] List of Wikidata sitelinks for this page. */ |
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protected $wikidataItems; |
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/** @var int Number of Wikidata sitelinks for this page. */ |
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protected $numWikidataItems; |
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/** @var string Title of the page. */ |
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protected $pageTitle; |
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/** @var int Length of the page in bytes. */ |
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protected $length; |
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/** |
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* Page constructor. |
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* @param Project $project |
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* @param string $pageName |
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*/ |
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public function __construct(Project $project, string $pageName) |
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{ |
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$this->project = $project; |
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$this->unnormalizedPageName = $pageName; |
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} |
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/** |
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* Get a Page instance given a database row (either from or JOINed on the page table). |
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* @param Project $project |
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* @param array $row Must contain 'page_title' and 'page_namespace'. May contain 'page_len'. |
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* @return static |
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*/ |
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public static function newFromRow(Project $project, array $row): self |
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{ |
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$pageTitle = $row['page_title']; |
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if (0 === (int)$row['page_namespace']) { |
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$fullPageTitle = $pageTitle; |
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} else { |
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$namespaces = $project->getNamespaces(); |
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$fullPageTitle = $namespaces[$row['page_namespace']].":$pageTitle"; |
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} |
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$page = new self($project, $fullPageTitle); |
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$page->pageInfo['ns'] = $row['page_namespace']; |
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if (isset($row['page_len'])) { |
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$page->length = (int)$row['page_len']; |
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} |
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return $page; |
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} |
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/** |
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* Unique identifier for this Page, to be used in cache keys. |
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* Use of md5 ensures the cache key does not contain reserved characters. |
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* @see Repository::getCacheKey() |
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* @return string |
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* @codeCoverageIgnore |
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*/ |
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public function getCacheKey(): string |
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{ |
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return md5((string)$this->getId()); |
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} |
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/** |
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* Get basic information about this page from the repository. |
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* @return array|null |
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*/ |
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protected function getPageInfo(): ?array |
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{ |
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if (empty($this->pageInfo)) { |
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$this->pageInfo = $this->getRepository() |
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->getPageInfo($this->project, $this->unnormalizedPageName); |
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} |
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return $this->pageInfo; |
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} |
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/** |
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* Get the page's title. |
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* @param bool $useUnnormalized Use the unnormalized page title to avoid an API call. This should be used only if |
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* you fetched the page title via other means (SQL query), and is not from user input alone. |
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* @return string |
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*/ |
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public function getTitle(bool $useUnnormalized = false): string |
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{ |
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if ($useUnnormalized) { |
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return $this->unnormalizedPageName; |
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} |
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$info = $this->getPageInfo(); |
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return $info['title'] ?? $this->unnormalizedPageName; |
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} |
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/** |
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* Get the page's title without the namespace. |
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* @return string |
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*/ |
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public function getTitleWithoutNamespace(): string |
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{ |
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$info = $this->getPageInfo(); |
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$title = $info['title'] ?? $this->unnormalizedPageName; |
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$nsName = $this->getNamespaceName(); |
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return $nsName |
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? str_replace($nsName . ':', '', $title) |
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: $title; |
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} |
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/** |
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* Get this page's database ID. |
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* @return int|null Null if nonexistent. |
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*/ |
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public function getId(): ?int |
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{ |
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$info = $this->getPageInfo(); |
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return isset($info['pageid']) ? (int)$info['pageid'] : null; |
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} |
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/** |
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* Get this page's length in bytes. |
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* @return int|null Null if nonexistent. |
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*/ |
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public function getLength(): ?int |
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{ |
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if (isset($this->length)) { |
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return $this->length; |
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} |
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$info = $this->getPageInfo(); |
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$this->length = isset($info['length']) ? (int)$info['length'] : null; |
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return $this->length; |
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} |
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/** |
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* Get HTML for the stylized display of the title. |
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* The text will be the same as Page::getTitle(). |
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* @return string |
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*/ |
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public function getDisplayTitle(): string |
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{ |
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$info = $this->getPageInfo(); |
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if (isset($info['displaytitle'])) { |
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return $info['displaytitle']; |
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} |
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return $this->getTitle(); |
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} |
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/** |
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* Get the full URL of this page. |
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* @return string|null Null if nonexistent. |
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*/ |
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public function getUrl(): ?string |
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{ |
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$info = $this->getPageInfo(); |
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return $info['fullurl'] ?? null; |
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} |
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/** |
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* Get the numerical ID of the namespace of this page. |
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* @return int|null Null if page doesn't exist. |
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*/ |
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public function getNamespace(): ?int |
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{ |
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if (isset($this->pageInfo['ns']) && is_numeric($this->pageInfo['ns'])) { |
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return (int)$this->pageInfo['ns']; |
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} |
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$info = $this->getPageInfo(); |
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return isset($info['ns']) ? (int)$info['ns'] : null; |
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} |
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/** |
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* Get the name of the namespace of this page. |
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* @return string|null Null if could not be determined. |
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*/ |
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public function getNamespaceName(): ?string |
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{ |
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$info = $this->getPageInfo(); |
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return isset($info['ns']) |
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? ($this->getProject()->getNamespaces()[$info['ns']] ?? null) |
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: null; |
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} |
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/** |
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* Get the number of page watchers. |
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* @return int|null Null if unknown. |
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*/ |
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public function getWatchers(): ?int |
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{ |
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$info = $this->getPageInfo(); |
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return isset($info['watchers']) ? (int)$info['watchers'] : null; |
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} |
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/** |
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* Get the HTML content of the body of the page. |
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* @param DateTime|int $target If a DateTime object, the |
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* revision at that time will be returned. If an integer, it is |
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* assumed to be the actual revision ID. |
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* @return string |
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*/ |
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public function getHTMLContent($target = null): string |
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{ |
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if (is_a($target, 'DateTime')) { |
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$target = $this->getRepository()->getRevisionIdAtDate($this, $target); |
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} |
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return $this->getRepository()->getHTMLContent($this, $target); |
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} |
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/** |
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* Whether or not this page exists. |
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* @return bool |
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*/ |
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public function exists(): bool |
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{ |
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$info = $this->getPageInfo(); |
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return null !== $info && !isset($info['missing']) && !isset($info['invalid']) && !isset($info['interwiki']); |
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} |
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/** |
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* Get the Project to which this page belongs. |
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* @return Project |
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*/ |
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public function getProject(): Project |
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{ |
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return $this->project; |
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} |
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/** |
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* Get the language code for this page. |
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* If not set, the language code for the project is returned. |
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* @return string |
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*/ |
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public function getLang(): string |
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{ |
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$info = $this->getPageInfo(); |
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if (isset($info['pagelanguage'])) { |
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return $info['pagelanguage']; |
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} else { |
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return $this->getProject()->getLang(); |
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} |
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} |
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/** |
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* Get the Wikidata ID of this page. |
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* @return string|null Null if none exists. |
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*/ |
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public function getWikidataId(): ?string |
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{ |
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$info = $this->getPageInfo(); |
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if (isset($info['pageprops']['wikibase_item'])) { |
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return $info['pageprops']['wikibase_item']; |
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} else { |
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return null; |
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} |
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} |
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/** |
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* Get the number of revisions the page has. |
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* @param ?User $user Optionally limit to those of this user. |
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* @param false|int $start |
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* @param false|int $end |
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* @return int |
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*/ |
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public function getNumRevisions(?User $user = null, $start = false, $end = false): int |
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{ |
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// If a user is given, we will not cache the result via instance variable. |
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if (null !== $user) { |
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return (int)$this->getRepository()->getNumRevisions($this, $user, $start, $end); |
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} |
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// Return cached value, if present. |
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if (null !== $this->numRevisions) { |
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return $this->numRevisions; |
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} |
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// Otherwise, return the count of all revisions if already present. |
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if (null !== $this->revisions) { |
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$this->numRevisions = count($this->revisions); |
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} else { |
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// Otherwise do a COUNT in the event fetching all revisions is not desired. |
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$this->numRevisions = (int)$this->getRepository()->getNumRevisions($this, null, $start, $end); |
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} |
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return $this->numRevisions; |
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} |
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/** |
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* Get all edits made to this page. |
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* @param User|null $user Specify to get only revisions by the given user. |
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* @param false|int $start |
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* @param false|int $end |
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* @return array |
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*/ |
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public function getRevisions(?User $user = null, $start = false, $end = false): array |
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{ |
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if ($this->revisions) { |
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return $this->revisions; |
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} |
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$this->revisions = $this->getRepository()->getRevisions($this, $user, $start, $end); |
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return $this->revisions; |
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} |
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/** |
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* Get the full page wikitext. |
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* @return string|null Null if nothing was found. |
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*/ |
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public function getWikitext(): ?string |
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{ |
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$content = $this->getRepository()->getPagesWikitext( |
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$this->getProject(), |
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[ $this->getTitle() ] |
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); |
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return $content[$this->getTitle()] ?? null; |
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} |
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/** |
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* Get the statement for a single revision, so that you can iterate row by row. |
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* @see PageRepository::getRevisionsStmt() |
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* @param User|null $user Specify to get only revisions by the given user. |
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* @param ?int $limit Max number of revisions to process. |
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* @param ?int $numRevisions Number of revisions, if known. This is used solely to determine the |
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* OFFSET if we are given a $limit. If $limit is set and $numRevisions is not set, a |
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* separate query is ran to get the nuber of revisions. |
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* @param false|int $start |
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* @param false|int $end |
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* @return ResultStatement |
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*/ |
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public function getRevisionsStmt( |
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?User $user = null, |
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?int $limit = null, |
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?int $numRevisions = null, |
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$start = false, |
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$end = false |
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): ResultStatement { |
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// If we have a limit, we need to know the total number of revisions so that PageRepo |
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// will properly set the OFFSET. See PageRepository::getRevisionsStmt() for more info. |
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if (isset($limit) && null === $numRevisions) { |
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$numRevisions = $this->getNumRevisions($user, $start, $end); |
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} |
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return $this->getRepository()->getRevisionsStmt($this, $user, $limit, $numRevisions, $start, $end); |
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} |
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|
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/** |
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* Get the revision ID that immediately precedes the given date. |
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* @param DateTime $date |
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* @return int|null Null if none found. |
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*/ |
373
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public function getRevisionIdAtDate(DateTime $date): ?int |
374
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{ |
375
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return $this->getRepository()->getRevisionIdAtDate($this, $date); |
376
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} |
377
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378
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/** |
379
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* Get CheckWiki errors for this page |
380
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* @return string[] See getErrors() for format |
381
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*/ |
382
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public function getCheckWikiErrors(): array |
383
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{ |
384
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return $this->getRepository()->getCheckWikiErrors($this); |
|
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385
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} |
386
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387
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/** |
388
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* Get Wikidata errors for this page |
389
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* @return string[] See getErrors() for format |
390
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*/ |
391
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public function getWikidataErrors(): array |
392
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{ |
393
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$errors = []; |
394
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|
395
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if (empty($this->getWikidataId())) { |
396
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return []; |
397
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} |
398
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|
399
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$wikidataInfo = $this->getRepository()->getWikidataInfo($this); |
|
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|
400
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|
401
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$terms = array_map(function ($entry) { |
402
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return $entry['term']; |
403
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}, $wikidataInfo); |
404
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|
405
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$lang = $this->getLang(); |
406
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|
|
|
407
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|
|
if (!in_array('label', $terms)) { |
408
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|
|
$errors[] = [ |
409
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|
|
'prio' => 2, |
410
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|
|
'name' => 'Wikidata', |
411
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|
|
'notice' => "Label for language <em>$lang</em> is missing", // FIXME: i18n |
412
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|
|
'explanation' => "See: <a target='_blank' " . |
413
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|
|
"href='//www.wikidata.org/wiki/Help:Label'>Help:Label</a>", |
414
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|
|
]; |
415
|
|
|
} |
416
|
|
|
|
417
|
|
|
if (!in_array('description', $terms)) { |
418
|
|
|
$errors[] = [ |
419
|
|
|
'prio' => 3, |
420
|
|
|
'name' => 'Wikidata', |
421
|
|
|
'notice' => "Description for language <em>$lang</em> is missing", // FIXME: i18n |
422
|
|
|
'explanation' => "See: <a target='_blank' " . |
423
|
|
|
"href='//www.wikidata.org/wiki/Help:Description'>Help:Description</a>", |
424
|
|
|
]; |
425
|
|
|
} |
426
|
|
|
|
427
|
|
|
return $errors; |
428
|
|
|
} |
429
|
|
|
|
430
|
|
|
/** |
431
|
|
|
* Get Wikidata and CheckWiki errors, if present |
432
|
|
|
* @return string[] List of errors in the format: |
433
|
|
|
* [[ |
434
|
|
|
* 'prio' => int, |
435
|
|
|
* 'name' => string, |
436
|
|
|
* 'notice' => string (HTML), |
437
|
|
|
* 'explanation' => string (HTML) |
438
|
|
|
* ], ... ] |
439
|
|
|
*/ |
440
|
|
|
public function getErrors(): array |
441
|
|
|
{ |
442
|
|
|
// Includes label and description |
443
|
|
|
$wikidataErrors = $this->getWikidataErrors(); |
444
|
|
|
|
445
|
|
|
$checkWikiErrors = $this->getCheckWikiErrors(); |
446
|
|
|
|
447
|
|
|
return array_merge($wikidataErrors, $checkWikiErrors); |
448
|
|
|
} |
449
|
|
|
|
450
|
|
|
/** |
451
|
|
|
* Get all wikidata items for the page, not just languages of sister projects |
452
|
|
|
* @return string[] |
453
|
|
|
*/ |
454
|
|
|
public function getWikidataItems(): array |
455
|
|
|
{ |
456
|
|
|
if (!is_array($this->wikidataItems)) { |
|
|
|
|
457
|
|
|
$this->wikidataItems = $this->getRepository()->getWikidataItems($this); |
458
|
|
|
} |
459
|
|
|
return $this->wikidataItems; |
460
|
|
|
} |
461
|
|
|
|
462
|
|
|
/** |
463
|
|
|
* Count wikidata items for the page, not just languages of sister projects |
464
|
|
|
* @return int Number of records. |
465
|
|
|
*/ |
466
|
|
|
public function countWikidataItems(): int |
467
|
|
|
{ |
468
|
|
|
if (is_array($this->wikidataItems)) { |
|
|
|
|
469
|
|
|
$this->numWikidataItems = count($this->wikidataItems); |
470
|
|
|
} elseif (null === $this->numWikidataItems) { |
471
|
|
|
$this->numWikidataItems = (int)$this->getRepository()->countWikidataItems($this); |
472
|
|
|
} |
473
|
|
|
return $this->numWikidataItems; |
474
|
|
|
} |
475
|
|
|
|
476
|
|
|
/** |
477
|
|
|
* Get number of in and outgoing links and redirects to this page. |
478
|
|
|
* @return string[] Counts with keys 'links_ext_count', 'links_out_count', 'links_in_count' and 'redirects_count'. |
479
|
|
|
*/ |
480
|
|
|
public function countLinksAndRedirects(): array |
481
|
|
|
{ |
482
|
|
|
return $this->getRepository()->countLinksAndRedirects($this); |
|
|
|
|
483
|
|
|
} |
484
|
|
|
|
485
|
|
|
/** |
486
|
|
|
* Get the sum of pageviews for the given page and timeframe. |
487
|
|
|
* @param string|DateTime $start In the format YYYYMMDD |
488
|
|
|
* @param string|DateTime $end In the format YYYYMMDD |
489
|
|
|
* @return int |
490
|
|
|
*/ |
491
|
|
|
public function getPageviews($start, $end): int |
492
|
|
|
{ |
493
|
|
|
try { |
494
|
|
|
$pageviews = $this->getRepository()->getPageviews($this, $start, $end); |
|
|
|
|
495
|
|
|
} catch (\GuzzleHttp\Exception\ClientException $e) { |
496
|
|
|
// 404 means zero pageviews |
497
|
|
|
return 0; |
498
|
|
|
} |
499
|
|
|
|
500
|
|
|
return array_sum(array_map(function ($item) { |
501
|
|
|
return (int)$item['views']; |
502
|
|
|
}, $pageviews['items'])); |
503
|
|
|
} |
504
|
|
|
|
505
|
|
|
/** |
506
|
|
|
* Get the sum of pageviews over the last N days |
507
|
|
|
* @param int $days Default 30 |
508
|
|
|
* @return int Number of pageviews |
509
|
|
|
*/ |
510
|
|
|
public function getLastPageviews(int $days = 30): int |
511
|
|
|
{ |
512
|
|
|
$start = date('Ymd', strtotime("-$days days")); |
513
|
|
|
$end = date('Ymd'); |
514
|
|
|
return $this->getPageviews($start, $end); |
515
|
|
|
} |
516
|
|
|
|
517
|
|
|
/** |
518
|
|
|
* Is the page the project's Main Page? |
519
|
|
|
* @return bool |
520
|
|
|
*/ |
521
|
|
|
public function isMainPage(): bool |
522
|
|
|
{ |
523
|
|
|
return $this->getProject()->getMainPage() === $this->getTitle(); |
524
|
|
|
} |
525
|
|
|
} |
526
|
|
|
|