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Don't strip newline in esc_url() when protocol is mailto:

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The mailto protocol is a bit different than the other protocols in that new lines are something you might realistically want to include. Includes tests to make sure that http protocol urls that contain mailto: aren't affected. Tests for stripping newlines in general already exist.

Fixes #31632
Props danielbachhuber


Built from https://develop.svn.wordpress.org/trunk@33064


git-svn-id: http://core.svn.wordpress.org/trunk@33035 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Aaron Jorbin
2015-07-03 14:28:23 +00:00
parent ceaec85751
commit 91712711eb
3 changed files with 6 additions and 4 deletions
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6
wp-includes/formatting.php
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@@ -3159,8 +3159,10 @@ function esc_url( $url, $protocols = null, $_context = 'display' ) {
if ( '' == $url )
return $url;
$url = preg_replace('|[^a-z0-9-~+_.?#=!&;,/:%@$\|*\'()\\x80-\\xff]|i', '', $url);
$strip = array('%0d', '%0a', '%0D', '%0A');
$url = _deep_replace($strip, $url);
if ( 0 !== stripos( $url, 'mailto:' ) ) {
$strip = array('%0d', '%0a', '%0D', '%0A');
$url = _deep_replace($strip, $url);
}
$url = str_replace(';//', '://', $url);
/* If the URL doesn't appear to contain a scheme, we
* presume it needs http:// appended (unless a relative