111 lines
4.2 KiB
PHP
111 lines
4.2 KiB
PHP
<?php
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namespace Grav\Plugin\Shortcodes;
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use Grav\Common\Data\Data;
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use Grav\Common\Uri;
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use Grav\Common\Utils;
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use Thunder\Shortcode\Shortcode\ProcessedShortcode;
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class PrismShortcode extends Shortcode
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{
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public function init()
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{
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$this->shortcode->getRawHandlers()->add('prism', function(ProcessedShortcode $sc) {
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$config = new Data($this->config->get('plugins.prism-highlight'));
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$content = $sc->getContent();
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$git = $sc->getParameter('git');
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if ($git) {
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$content = $this->processGit($git) ?? $content;
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}
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$classes = $sc->getParameter('classes', $this->getBbCode($sc)) ?: 'language-text';
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$id = $sc->getParameter('id');
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$highlight_lines = $sc->getParameter('highlight');
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$enable_line_numbers = (bool) Utils::contains($classes, 'line-numbers') ?: $config->get('plugins.line-numbers');
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$enable_command_line = (bool) Utils::contains($classes, 'command-line') ?: $config->get('plugins.command-line');
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$ln_start = $sc->getParameter('ln-start');
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$cl_prompt = $sc->getParameter('cl-prompt', $config->get('plugins.command-line-prompt'));
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$cl_output = $sc->getParameter('cl-output');
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$cl_filter_output = $sc->getParameter('cl-filter-output');
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$cl_continuation = $sc->getParameter('cl-continuation');
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// work around \\ not being passed along as \
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if ($cl_continuation == '\\\\')
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$cl_continuation = '\\';
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return $this->twig->processTemplate('shortcodes/prism-highlight.html.twig', [
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'content' => trim($content),
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'classes' => $classes,
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'id' => $id,
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'enable_line_numbers' => $enable_line_numbers,
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'enable_command_line' => $enable_command_line,
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'cl_prompt' => $cl_prompt,
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'cl_output' => $cl_output,
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'cl_filter_output' => $cl_filter_output,
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'ln_start' => $ln_start,
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'highlight_lines' => $highlight_lines,
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'cl_continuation' => $cl_continuation,
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]);
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});
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}
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protected function processGit($path)
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{
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$content = null;
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try {
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$path = preg_replace(['#http[s]*:\/\/github.com\/#', '#\/blob\/#'], ['https://raw.github.com/', '/'], $path);
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preg_match('#\?slice=(.*)#', $path, $matches);
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// Ensure only 'extenral' URls are allowed..
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if (!Uri::isExternal($path)) {
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throw new \Exception('Local files are not allowed');
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}
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if ($path) {
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$git_file = file_get_contents($path);
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$lines = $matches[1] ?? null;
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if ($lines && $git_file) {
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$file_lines = explode("\n", $git_file);
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//rejig things so it's the array is index starting at line #1
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array_unshift($file_lines,"");
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unset($file_lines[0]);
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$specific_lines = explode(':', $lines);
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if (count($specific_lines) === 1) {
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$content = $file_lines[$specific_lines[0]] ?? $git_file;
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} elseif (count($specific_lines) === 2) {
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$start = $specific_lines[0];
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$end = $specific_lines[1];
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if ($end < 0) {
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$end = count($file_lines) + $end;
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}
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$new_content = '';
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foreach ($file_lines as $line_no => $line) {
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if ($line_no >= $start && $line_no <= $end) {
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$new_content .= $line . "\n";
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}
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}
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$content = $new_content;
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}
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} else {
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$content = $git_file;
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}
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} else {
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throw new \Exception('File not found');
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}
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} catch (\exception $e) {
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$msg = $e->getMessage() ?? 'Could not find';
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$content = "$msg: " . $path;
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}
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return $content;
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}
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}
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