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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// 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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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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namespace tool_brickfield\local\htmlchecker\common\checks;
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use tool_brickfield\local\htmlchecker\brickfield_accessibility;
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use tool_brickfield\local\htmlchecker\common\brickfield_accessibility_test;
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use tool_brickfield\manager;
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/**
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* Brickfield accessibility HTML checker library.
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*
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* Suspicious link text.
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* 'a' (anchor) element cannot contain any of the following text, such as (English): "click here".
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*
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* @package tool_brickfield
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* @copyright 2020 onward: Brickfield Education Labs, www.brickfield.ie
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class a_suspicious_link_text extends brickfield_accessibility_test {
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/**
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* @var int The default severity code for this test.
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*/
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public $defaultseverity = brickfield_accessibility::BA_TEST_SEVERE;
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/**
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* The main check function. This is called by the parent class to actually check content
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*/
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public function check(): void {
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// Need to process all enabled lang versions of invalidlinkphrases.
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$badtext = brickfield_accessibility_test::get_all_invalidlinkphrases();
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foreach ($this->get_all_elements('a') as $a) {
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if (in_array(strtolower(trim($a->nodeValue)), $badtext) || $a->nodeValue == $a->getAttribute('href')) {
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// If the link text matches invalid phrases.
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$this->add_report($a);
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} else if (brickfield_accessibility::match_urls($a->nodeValue, $a->getAttribute('href'))) {
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// If the link text is the same as the link URL.
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$this->add_report($a);
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}
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}
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}
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/**
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* Return all 'a' elements.
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*
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* @return array
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*/
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public function search(): array {
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$data = [];
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foreach ($this->get_all_elements('a') as $a) {
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$data[] = $a;
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}
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return $data;
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}
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}
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