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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



git-svn-id: https://develop.svn.wordpress.org/trunk@33064 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Aaron Jorbin 2015-07-03 14:27:11 +00:00
parent 12168b78d5
commit a547d6fed1
3 changed files with 33 additions and 3 deletions
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2
src/wp-admin/about.php
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@ -41,7 +41,7 @@ include( ABSPATH . 'wp-admin/admin-header.php' );
</h2>
<div class="headline-feature feature-video">
<embed type="application/x-shockwave-flash" src="https://v0.wordpress.com/player.swf?v=1.04" width="1000" height="560" wmode="direct" seamlesstabbing="true" allowfullscreen="true" allowscriptaccess="always" overstretch="true" flashvars="guid=e9kH4FzP&amp;isDynamicSeeking=true"></embed>
<iframe width="560" height="315" src="https://www.youtube.com/embed/LCZ-cxfxzvk" frameborder="0" allowfullscreen></iframe>
</div>
<hr />

2
src/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);
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

28
tests/phpunit/tests/formatting/EscUrl.php
View File

@ -68,4 +68,32 @@ class Tests_Formatting_EscUrl extends WP_UnitTestCase {
function test_protocol_relative_with_colon() {
$this->assertEquals( '//example.com/foo?foo=abc:def', esc_url( '//example.com/foo?foo=abc:def' ) );
}
/**
* @ticket 31632
*/
function test_mailto_with_newline() {
$body = <<<EOT
Hi there,
I thought you might want to sign up for this newsletter
EOT;
$email_link = 'mailto:?body=' . rawurlencode( $body );
$email_link = esc_url( $email_link );
$this->assertEquals( 'mailto:?body=Hi%20there%2C%0A%0AI%20thought%20you%20might%20want%20to%20sign%20up%20for%20this%20newsletter', $email_link );
}
/**
* @ticket 31632
*/
function test_mailto_in_http_url_with_newline() {
$body = <<<EOT
Hi there,
I thought you might want to sign up for this newsletter
EOT;
$email_link = 'http://example.com/mailto:?body=' . rawurlencode( $body );
$email_link = esc_url( $email_link );
$this->assertEquals( 'http://example.com/mailto:?body=Hi%20there%2CI%20thought%20you%20might%20want%20to%20sign%20up%20for%20this%20newsletter', $email_link );
}
}