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Emoji: When we're replacing emoji with <img>s in email, we can only do that if the Content-Type is text/html - otherwise, they'll show up in the email as the HTML string.

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Fixes #31720 



git-svn-id: https://develop.svn.wordpress.org/trunk@31860 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Gary Pendergast 2015-03-22 23:15:34 +00:00
parent c1b0b8e97e
commit 48cb73bba1
1 changed files with 53 additions and 1 deletions
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54
src/wp-includes/formatting.php
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@ -4244,8 +4244,60 @@ function wp_staticize_emoji( $text ) {
* @return array The email data array, with emoji in the message staticized.
*/
function _wp_staticize_emoji_for_email( $mail ) {
if ( isset( $mail['message'] ) ) {
if ( ! isset( $mail['message'] ) ) {
return $mail;
}
/*
* We can only transform the emoji into images if it's a text/html email.
* To do that, here's a cut down version of the same process that happens
* in wp_mail() - get the Content-Type from the headers, if there is one,
* then pass it through the wp_mail_content_type filter, in case a plugin
* is handling changing the Content-Type.
*/
$headers = array();
if ( isset( $mail['headers'] ) ) {
if ( is_array( $mail['headers'] ) ) {
$headers = $mail['headers'];
} else {
$headers = explode( "\n", str_replace( "\r\n", "\n", $mail['headers'] ) );
}
}
foreach ( $headers as $header ) {
if ( strpos($header, ':') === false ) {
continue;
}
// Explode them out
list( $name, $content ) = explode( ':', trim( $header ), 2 );
// Cleanup crew
$name = trim( $name );
$content = trim( $content );
if ( 'content-type' === strtolower( $name ) ) {
if ( strpos( $content, ';' ) !== false ) {
list( $type, $charset ) = explode( ';', $content );
$content_type = trim( $type );
} else {
$content_type = trim( $content );
}
break;
}
}
// Set Content-Type if we don't have a content-type from the input headers
if ( ! isset( $content_type ) ) {
$content_type = 'text/plain';
}
/** This filter is documented in wp-includes/pluggable.php */
$content_type = apply_filters( 'wp_mail_content_type', $content_type );
if ( 'text/html' === $content_type ) {
$mail['message'] = wp_staticize_emoji( $mail['message'], true );
}
return $mail;
}