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Replace existing block escaping by performWitEscaped* calls

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This commit is contained in:
Hypolite Petovan 2020-06-04 19:30:28 -04:00
parent 348b71d0b0
commit 0bc7b89530
2 changed files with 832 additions and 863 deletions
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57
src/Content/Text/BBCode.php
View file

@ -1256,6 +1256,8 @@ class BBCode
{
$a = DI::app();
$text = self::performWithEscapedTags($text, ['code'], function ($text) use ($try_oembed, $simple_html, $for_plaintext, $a) {
$text = self::performWithEscapedTags($text, ['noparse', 'nobb', 'pre'], function ($text) use ($try_oembed, $simple_html, $for_plaintext, $a) {
/*
* preg_match_callback function to replace potential Oembed tags with Oembed content
*
@ -1277,29 +1279,7 @@ class BBCode
return $return;
};
// Extracting code blocks before the whitespace processing and the autolinker
$codeblocks = [];
$text = preg_replace_callback("#\[code(?:=([^\]]*))?\](.*?)\[\/code\]#ism",
function ($matches) use (&$codeblocks) {
$return = '#codeblock-' . count($codeblocks) . '#';
if (strpos($matches[2], "\n") !== false) {
$codeblocks[] = '<pre><code class="language-' . trim($matches[1]) . '">' . htmlspecialchars(trim($matches[2], "\n\r"), ENT_NOQUOTES, 'UTF-8') . '</code></pre>';
} else {
$codeblocks[] = '<code>' . htmlspecialchars($matches[2], ENT_NOQUOTES, 'UTF-8') . '</code>';
}
return $return;
},
$text
);
// Hide all [noparse] contained bbtags by spacefying them
// POSSIBLE BUG --> Will the 'preg' functions crash if there's an embedded image?
$text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'self::escapeNoparseCallback', $text);
$text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'self::escapeNoparseCallback', $text);
$text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'self::escapeNoparseCallback', $text);
// Remove the abstract element. It is a non visible element.
$text = self::stripAbstract($text);
@ -1834,13 +1814,6 @@ class BBCode
$text = preg_replace("/\[mail\](.*?)\[\/mail\]/", '<a href="mailto:$1">$1</a>', $text);
$text = preg_replace("/\[mail\=(.*?)\](.*?)\[\/mail\]/", '<a href="mailto:$1">$2</a>', $text);
// Unhide all [noparse] contained bbtags unspacefying them
// and triming the [noparse] tag.
$text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'self::unescapeNoparseCallback', $text);
$text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'self::unescapeNoparseCallback', $text);
$text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'self::unescapeNoparseCallback', $text);
/// @todo What is the meaning of these lines?
$text = preg_replace('/\[\&amp\;([#a-z0-9]+)\;\]/', '&$1;', $text);
$text = preg_replace('/\&\#039\;/', '\'', $text);
@ -1882,17 +1855,27 @@ class BBCode
}
);
if ($saved_image) {
$text = self::interpolateSavedImagesIntoItemBody($text, $saved_image);
return $text;
}); // Escaped noparse, nobb, pre
// Remove escaping tags
$text = preg_replace("/\[noparse\](.*?)\[\/noparse\]/ism", '\1', $text);
$text = preg_replace("/\[nobb\](.*?)\[\/nobb\]/ism", '\1', $text);
$text = preg_replace("/\[pre\](.*?)\[\/pre\]/ism", '\1', $text);
return $text;
}); // Escaped code
$text = preg_replace_callback("#\[code(?:=([^\]]*))?\](.*?)\[\/code\]#ism",
function ($matches) {
if (strpos($matches[2], "\n") !== false) {
$return = '<pre><code class="language-' . trim($matches[1]) . '">' . htmlspecialchars(trim($matches[2], "\n\r"), ENT_NOQUOTES, 'UTF-8') . '</code></pre>';
} else {
$return = '<code>' . htmlspecialchars($matches[2], ENT_NOQUOTES, 'UTF-8') . '</code>';
}
// Restore code blocks
$text = preg_replace_callback('/#codeblock-([0-9]+)#/iU',
function ($matches) use ($codeblocks) {
$return = $matches[0];
if (isset($codeblocks[intval($matches[1])])) {
$return = $codeblocks[$matches[1]];
}
return $return;
},
$text

36
src/Content/Text/HTML.php
View file

@ -167,24 +167,7 @@ class HTML
{
$message = str_replace("\r", "", $message);
// Removing code blocks before the whitespace removal processing below
$codeblocks = [];
$message = preg_replace_callback(
'#<pre><code(?: class="language-([^"]*)")?>(.*)</code></pre>#iUs',
function ($matches) use (&$codeblocks) {
$return = '[codeblock-' . count($codeblocks) . ']';
$prefix = '[code]';
if ($matches[1] != '') {
$prefix = '[code=' . $matches[1] . ']';
}
$codeblocks[] = $prefix . PHP_EOL . trim($matches[2]) . PHP_EOL . '[/code]';
return $return;
},
$message
);
$message = Strings::performWithEscapedBlocks($message, '#<pre><code.*</code></pre>#iUs', function ($message) {
$message = str_replace(
[
"<li><p>",
@ -404,15 +387,18 @@ class HTML
// Handling Yahoo style of mails
$message = str_replace('[hr][b]From:[/b]', '[quote][b]From:[/b]', $message);
// Restore code blocks
return $message;
});
$message = preg_replace_callback(
'#\[codeblock-([0-9]+)\]#iU',
function ($matches) use ($codeblocks) {
$return = '';
if (isset($codeblocks[intval($matches[1])])) {
$return = $codeblocks[$matches[1]];
'#<pre><code(?: class="language-([^"]*)")?>(.*)</code></pre>#iUs',
function ($matches) {
$prefix = '[code]';
if ($matches[1] != '') {
$prefix = '[code=' . $matches[1] . ']';
}
return $return;
return $prefix . PHP_EOL . trim($matches[2]) . PHP_EOL . '[/code]';
},
$message
);