Viewing file:  smart-youtube-embed.php (2.45 KB) -rw-r--r--
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<?php
/*
Plugin Name: Smart YouTube httpv:// URLs
Description: Parse video URLs used by the Smart YouTube plugin
Version: 1.0
Author: Janis Elsts
ModuleCategory: parser
ModuleClassName: blcSmartYouTubeURL
ModuleContext: on-demand
ModuleLazyInit: true
ModulePriority: 100
*/
if ( !class_exists('blcPlaintextUrlBase') ) {
require_once 'plaintext-url-parser-base.php';
}
class blcSmartYouTubeURL extends blcPlaintextUrlBase {
protected function validate_url($url) {
//Ignore invalid URLs.
$parts = @parse_url($url);
if ( empty($parts) ) {
return false;
}
//We only care about httpv[hp]:// URLs as used by the Smart YouTube plugin.
if ( stripos($parts['scheme'], 'httpv') !== 0 ) {
return false;
}
//The URL should contain a domain name. AFAIK, Smart YouTube doesn't accept relative URLs.
if ( empty($parts['host']) || !strpos($parts['host'], '.') ){
return false;
}
//Replace the plugin-specific scheme with plain old http://.
$url = preg_replace('#^httpv[^:]*?:#i', 'http:', $url);
return $url;
}
/**
* Change all occurrences of a given URLs to a new URL.
*
* @param string $content Look for URLs in this string.
* @param string $new_url Change them to this URL.
* @param string $old_url The URL to look for.
* @param string $old_raw_url The raw, not-normalized URL. Optional.
*
* @return array|WP_Error If successful, the return value will be an associative array with two
* keys : 'content' - the modified content, and 'raw_url' - the new raw, non-normalized URL used
* for the modified links. In most cases, the returned raw_url will be equal to the new_url.
*/
function edit($content, $new_url, $old_url, $old_raw_url = ''){
//If the user manually prefixes the URL with "httpv://" or other Smart YouTube scheme
//then use the URL as-is. Otherwise change the scheme to the prefix from the old URL (if available).
$new_scheme = @parse_url($new_url, PHP_URL_SCHEME);
if ( empty($new_scheme) || (stripos($new_scheme, 'httpv') !== 0) ) {
if ( !empty($old_raw_url) ) {
$scheme = parse_url($old_raw_url, PHP_URL_SCHEME);
} else {
$scheme = 'httpv';
}
if ( empty($new_scheme) ) {
$new_url = $scheme . '://' . $new_url;
} else {
$new_url = preg_replace(
'#^' . preg_quote($new_scheme) . '://#i',
$scheme . '://',
$new_url
);
}
}
return parent::edit($content, $new_url, $old_url, $old_raw_url);
}
}
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