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efrain |
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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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/**
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* This script implements some useful svg manipulation tricks.
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*
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* @package core_admin
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* @subpackage cli
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* @copyright 2012 Petr Skoda {@link http://skodak.org}
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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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define('CLI_SCRIPT', true);
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require(__DIR__.'/../../config.php');
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require_once($CFG->libdir.'/clilib.php');
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// Now get cli options.
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list($options, $unrecognized) = cli_get_params(array('help'=>false, 'ie9fix'=>false, 'noaspectratio'=>false, 'path'=>$CFG->dirroot),
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array('h'=>'help'));
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if ($unrecognized) {
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$unrecognized = implode("\n ", $unrecognized);
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cli_error(get_string('cliunknowoption', 'admin', $unrecognized));
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}
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// If necessary add files that should be ignored - such as in 3rd party plugins.
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$ignorelist = array();
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$path = $options['path'];
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if (!file_exists($path)) {
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cli_error("Invalid path $path");
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}
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if ($options['ie9fix']) {
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core_admin_recurse_svgs($path, '', 'core_admin_svgtool_ie9fix', $ignorelist);
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} else if ($options['noaspectratio']) {
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core_admin_recurse_svgs($path, '', 'core_admin_svgtool_noaspectratio', $ignorelist);
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} else {
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$help =
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"Some svg image tweaks for icon designers.
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Options:
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-h, --help Print out this help
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--ie9fix Adds preserveAspectRatio=\"xMinYMid meet\" to every svg image
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--noaspectratio Removes preserveAspectRatio from svg files
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--path=PATH Path to directory or file to be converted, by default \$CFG->dirroot
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Examples:
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\$ php svgtool.php --ie9fix
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\$ php svgtool.php --ie9fix --path=../../../pix
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\$ php svgtool.php --noaspectratio
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";
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echo $help;
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die;
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}
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exit(0);
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/**
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* Fixes SVG images for IE9.
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*
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* @param string $file
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*/
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function core_admin_svgtool_ie9fix($file) {
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global $CFG;
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if (strpos($file, $CFG->dirroot.DIRECTORY_SEPARATOR) === 0) {
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$relfile = substr($file, strlen($CFG->dirroot));
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} else {
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$relfile = $file;
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}
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$content = file_get_contents($file);
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if (!preg_match('/<svg\s[^>]*>/', $content, $matches)) {
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echo " skipping $relfile (invalid format)\n";
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return;
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}
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$svg = $matches[0];
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if (strpos($svg, 'preserveAspectRatio') !== false) {
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return;
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}
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if (!is_writable($file)) {
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echo " skipping $relfile (can not modify file)\n";
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return;
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}
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$newsvg = rtrim($svg, '>').' preserveAspectRatio="xMinYMid meet">';
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$content = str_replace($svg, $newsvg, $content);
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echo "converting $relfile\n";
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file_put_contents($file, $content);
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}
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/**
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* Removes preserveAspectRatio attributes from SVG images.
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*
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* @param string $file
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*/
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function core_admin_svgtool_noaspectratio($file) {
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global $CFG;
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if (strpos($file, $CFG->dirroot.DIRECTORY_SEPARATOR) === 0) {
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$relfile = substr($file, strlen($CFG->dirroot));
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} else {
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$relfile = $file;
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}
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$content = file_get_contents($file);
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if (!preg_match('/<svg\s[^>]*>/', $content, $matches)) {
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echo " skipping $relfile (invalid format)\n";
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return;
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}
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$svg = $matches[0];
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if (strpos($svg, 'preserveAspectRatio="xMinYMid meet"') === false) {
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return;
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}
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if (!is_writable($file)) {
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echo " skipping $relfile (can not modify file)\n";
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return;
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}
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$newsvg = preg_replace('/ ?preserveAspectRatio="xMinYMid meet"/', '', $svg);
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$content = str_replace($svg, $newsvg, $content);
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echo "resetting $relfile\n";
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file_put_contents($file, $content);
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}
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/**
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* Recursively works through directories of this theme, finding and fixing SVG images.
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*
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* @param string $base
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* @param string $sub
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* @param string $filecallback
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* @param array $ignorelist List of files to be ignored and skipped.
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*/
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function core_admin_recurse_svgs($base, $sub, $filecallback, $ignorelist) {
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if (is_dir("$base/$sub")) {
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$items = new DirectoryIterator("$base/$sub");
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foreach ($items as $item) {
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if ($item->isDot()) {
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continue;
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}
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$file = $item->getFilename();
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core_admin_recurse_svgs("$base/$sub", $file, $filecallback, $ignorelist);
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}
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unset($item);
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unset($items);
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return;
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} else if (is_file("$base/$sub")) {
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if (substr($sub, -4) !== '.svg') {
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return;
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}
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$file = realpath("$base/$sub");
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if (in_array($file, $ignorelist)) {
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return;
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}
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$filecallback($file);
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}
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}
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