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Merge pull request #930 from annando/markdown-encoding

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Markdown: Protect some more elements from markdown parsing
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Hypolite Petovan 2019-12-29 17:37:22 -05:00 committed by GitHub
commit aa7f8e7bdf
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1 changed files with 7 additions and 7 deletions
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10
markdown/markdown.php
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@ -50,11 +50,11 @@ function markdown_post_local_start(App $a, &$request) {
} }
// Elements that shouldn't be parsed // Elements that shouldn't be parsed
$elements = ['code', 'noparse', 'nobb', 'pre']; $elements = ['code', 'noparse', 'nobb', 'pre', 'share', 'url', 'img'];
foreach ($elements as $element) { foreach ($elements as $element) {
$request['body'] = preg_replace_callback("/\[" . $element . "\](.*?)\[\/" . $element . "\]/ism", $request['body'] = preg_replace_callback("/\[" . $element . "(.*?)\](.*?)\[\/" . $element . "\]/ism",
function ($match) use ($element) { function ($match) use ($element) {
return '[base64' . $element . ']' . base64_encode($match[1]) . '[/base64' . $element . ']'; return '[' . $element . '-b64' . base64_encode($match[1]) . ']' . base64_encode($match[2]) . '[/b64-' . $element . ']';
}, },
$request['body'] $request['body']
); );
@ -63,9 +63,9 @@ function markdown_post_local_start(App $a, &$request) {
$request['body'] = Markdown::toBBCode($request['body']); $request['body'] = Markdown::toBBCode($request['body']);
foreach (array_reverse($elements) as $element) { foreach (array_reverse($elements) as $element) {
$request['body'] = preg_replace_callback("/\[base64" . $element . "\](.*?)\[\/base64" . $element . "\]/ism", $request['body'] = preg_replace_callback("/\[" . $element . "-b64(.*?)\](.*?)\[\/b64-" . $element . "\]/ism",
function ($match) use ($element) { function ($match) use ($element) {
return '[' . $element . ']' . base64_decode($match[1]) . '[/' . $element . ']'; return '[' . $element . base64_decode($match[1]) . ']' . base64_decode($match[2]) . '[/' . $element . ']';
}, },
$request['body'] $request['body']
); );