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<?php |
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/** |
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* BEdita, API-first content management framework |
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* Copyright 2018 ChannelWeb Srl, Chialab Srl |
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* |
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* This file is part of BEdita: you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published |
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* by the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* See LICENSE.LGPL or <http://gnu.org/licenses/lgpl-3.0.html> for more details. |
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*/ |
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namespace BEdita\WebTools\View\Helper; |
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use Cake\Core\Configure; |
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use Cake\Utility\Inflector; |
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use Cake\View\Helper\HtmlHelper as CakeHtmlHelper; |
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/** |
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* Html helper. |
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* It extends {@see \Cake\View\Helper\HtmlHelper} Cake Html Helper |
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*/ |
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class HtmlHelper extends CakeHtmlHelper |
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{ |
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/** |
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* Title for template pages |
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* If `_title` view var is set, return it |
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* Otherwise return controller name (and action name if set) |
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* |
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* @return string |
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*/ |
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public function title() : string |
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{ |
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if (isset($this->getView()->viewVars['_title'])) { |
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return $this->getView()->viewVars['_title']; |
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} |
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$title = Inflector::humanize($this->getView()->request->getParam('controller', '')); |
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$suffix = Inflector::humanize($this->getView()->request->getParam('action', '')); |
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if (empty($title)) { |
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$title = $suffix; |
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} elseif (!empty($suffix)) { |
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$title .= sprintf(' - %s', $suffix); |
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} |
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return $title; |
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} |
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/** |
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* Html meta: description, content, author, css, generator |
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* |
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* @param array $data Data for meta: 'description', 'author', 'docType', 'project', 'theme-color' |
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* @return string |
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* @see HtmlHelper |
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*/ |
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public function metaAll(array $data) : string |
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{ |
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$html = ''; |
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// description |
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if (!empty($data['description'])) { |
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$html .= $this->metaDescription($data['description']); |
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} |
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// author |
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if (!empty($data['author'])) { |
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$html .= $this->metaAuthor($data['author']); |
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} |
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// viewport, msapplication-TileColor, theme-color |
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foreach (['viewport', 'msapplication-TileColor', 'theme-color'] as $attribute) { |
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if (!empty($data[$attribute])) { |
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$html .= $this->meta([ |
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'name' => $attribute, |
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'content' => $data[$attribute], |
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]); |
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} |
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} |
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// css |
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$docType = ''; |
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if (!empty($data['docType'])) { |
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$docType = $data['docType']; |
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} else { |
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$docType = Configure::read('docType'); |
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if (empty($docType)) { |
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$docType = 'xhtml-strict'; |
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} |
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} |
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$html .= $this->metaCss($docType); |
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// generator |
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$project = []; |
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if (!empty($data['project'])) { |
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$project = $data['project']; |
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} |
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$html .= $this->metaGenerator($project); |
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return $html; |
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} |
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/** |
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* Return html meta description tag for passed description argument |
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* |
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* @param string|null $description The description |
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* @return string |
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*/ |
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public function metaDescription($description) : string |
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{ |
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if (empty($description)) { |
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return ''; |
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} |
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$html = $this->meta('description', h(strip_tags($description))); |
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if ($html == null) { |
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$html = ''; |
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} |
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return $html; |
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} |
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/** |
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* Return html meta author tag for passed creator argument |
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* |
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* @param string|null $creator The content creator |
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* @return string |
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*/ |
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public function metaAuthor(?string $creator) : string |
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{ |
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if (empty($creator)) { |
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return ''; |
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} |
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$html = $this->meta([ |
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'name' => 'author', |
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'content' => h($creator), |
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]); |
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if ($html == null) { |
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$html = ''; |
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} |
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return $html; |
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} |
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/** |
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* Return html meta css tag for passed doc type |
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* |
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* @param string $docType The doc type |
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* @return string |
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*/ |
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public function metaCss(string $docType) : string |
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{ |
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if ($docType === 'html5') { |
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return ''; |
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} |
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$html = $this->meta([ |
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'http-equiv' => 'Content-Style-Type', |
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'content' => 'text/css', |
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]); |
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if ($html == null) { |
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$html = ''; |
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} |
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return $html; |
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} |
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/** |
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* Return html meta for generator by project name and version passed |
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* |
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* @param array $project The project data ('name', 'version') |
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* @return string |
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*/ |
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public function metaGenerator(array $project) : string |
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{ |
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if (empty($project) || empty($project['name'])) { |
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return ''; |
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} |
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$version = ''; |
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if (!empty($project['version'])) { |
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$version = $project['version']; |
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} |
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$html = $this->meta([ |
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'name' => 'generator', |
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'content' => trim(sprintf('%s %s', $project['name'], $version)), |
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]); |
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if ($html == null) { |
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$html = ''; |
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} |
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return $html; |
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} |
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/** |
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* Return html meta for opengraph / facebook |
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* OG fields: |
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* |
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* - og:title |
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* - og:type |
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* - og:url |
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* - og:image |
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* |
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* OG optional fields: |
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* |
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* - og:audio |
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* - og:description |
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* - og:determiner |
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* - og:locale |
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* - og:locale:alternate |
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* - og:site_name |
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* - og:video |
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* |
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* OG structured fields: |
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* |
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* - og:image:url // identical to og:image |
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* - og:image:secure_url |
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* - og:image:type |
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* - og:image:width |
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* - og:image:height |
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* - og:image:alt |
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* - og:video:url // identical to og:video |
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* - og:video:secure_url |
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* - og:video:type |
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* - og:video:width |
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* - og:video:height |
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* - og:audio |
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* - og:secure_url |
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* - og:type |
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* |
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* For details @see http://ogp.me |
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* |
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* @param array $data The data ('title', 'type', 'image', 'url') |
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* @return string |
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*/ |
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public function metaOpenGraph(array $data) : string |
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{ |
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$html = ''; |
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foreach ($data as $attribute => $val) { |
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$tmp = $this->meta([ |
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'property' => sprintf('og:%s', $attribute), |
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'content' => $val, |
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]); |
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if ($tmp != null) { |
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$html .= $tmp; |
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} |
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} |
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return $html; |
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} |
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/** |
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* Return html meta for twitter |
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* twitter fields: |
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* |
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* - twitter:card |
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* - twitter:site |
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* - twitter:site:id |
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* - twitter:creator |
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* - twitter:creator:id |
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* - twitter:description |
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* - twitter:title |
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* - twitter:image |
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* - twitter:image:alt |
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* - twitter:player |
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* - twitter:player:width |
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* - twitter:player:height |
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* - twitter:player:stream |
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* - twitter:app:name:iphone |
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* - twitter:app:id:iphone |
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* - twitter:app:url:iphone |
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* - twitter:app:name:ipad |
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* - twitter:app:id:ipad |
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* - twitter:app:url:ipad |
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* - twitter:app:name:googleplay |
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* - twitter:app:id:googleplay |
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* - twitter:app:url:googleplay |
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* |
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* For details @see https://developer.twitter.com/en/docs/tweets/optimize-with-cards/overview/markup.html |
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* |
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* @param array $data The data ('card', 'site', 'creator', 'title', 'description', 'image') |
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* @return string |
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*/ |
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public function metaTwitter(array $data) : string |
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{ |
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$html = ''; |
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foreach ($data as $attribute => $val) { |
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$tmp = $this->meta([ |
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'property' => sprintf('twitter:%s', $attribute), |
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'content' => $val, |
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]); |
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if ($tmp != null) { |
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$html .= $tmp; |
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} |
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} |
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return $html; |
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} |
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} |
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bedita /
web-tools
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