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Linkifier support many more urls, and less mismatches

This commit is contained in:
Craig Andrews 2009-08-21 15:56:15 -04:00
parent 70ca03f336
commit 871903a319
1 changed files with 45 additions and 32 deletions
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77
lib/util.php
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@ -413,15 +413,16 @@ function common_replace_urls_callback($text, $callback, $notice_id = null) {
// Start off with a regex
$regex = '#'.
'(?:^|\s+)('.
'(?:'.
'(?:https?|ftps?|mms|rtsp|gopher|news|nntp|telnet|wais|file|prospero|webcal|irc)://'.
'|'.
'(?:mailto|aim|tel|xmpp):'.
')?'.
'(?:'.
'(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)'. //IPv4
'|(?:'.
'(?:[0-9a-f]{1,4}:){1,1}(?::[0-9a-f]{1,4}){1,6}|'. //IPv6
'(?:'. //Known protocols
'(?:'.
'(?:https?|ftps?|mms|rtsp|gopher|news|nntp|telnet|wais|file|prospero|webcal|irc)://'.
'|'.
'(?:mailto|aim|tel|xmpp):'.
')\S+'.
')'.
'|(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)'. //IPv4
'|(?:'. //IPv6
'(?:[0-9a-f]{1,4}:){1,1}(?::[0-9a-f]{1,4}){1,6}|'.
'(?:[0-9a-f]{1,4}:){1,2}(?::[0-9a-f]{1,4}){1,5}|'.
'(?:[0-9a-f]{1,4}:){1,3}(?::[0-9a-f]{1,4}){1,4}|'.
'(?:[0-9a-f]{1,4}:){1,4}(?::[0-9a-f]{1,4}){1,3}|'.
@ -438,39 +439,46 @@ function common_replace_urls_callback($text, $callback, $notice_id = null) {
'(?:[0-9a-f]{1,4}:){1,4}(?::[0-9a-f]{1,4}){1,1}:(?:25[0-5]|2[0-4]\d|[0-1]?\d?\d)(?:\.(?:25[0-5]|2[0-4]\d|[0-1]?\d?\d)){3}|'.
'(?:(?:[0-9a-f]{1,4}:){1,5}|:):(?:25[0-5]|2[0-4]\d|[0-1]?\d?\d)(?:\.(?:25[0-5]|2[0-4]\d|[0-1]?\d?\d)){3}|'.
':(?::[0-9a-f]{1,4}){1,5}:(?:25[0-5]|2[0-4]\d|[0-1]?\d?\d)(?:\.(?:25[0-5]|2[0-4]\d|[0-1]?\d?\d)){3}'.
')|'.
'(?:[^.\s/:]+\.)+'. //DNS
'(?:museum|travel|onion|[a-z]{2,4})'.
')|(?:'. //DNS
'\S+\.(?:museum|travel|onion|local|[a-z]{2,4})'.
')'.
'(?:[:/][^\s]*)?'.
')'.
'(?:[:/]\S*)?'.
')(?:$|\s+)'.
'#ix';
$callback_helper = curry(callback_helper, 3);
return preg_replace_callback($regex, $callback_helper($callback,$notice_id) ,$text);
//preg_match_all($regex,$text,$matches);
//print_r($matches);
//die("here");
return preg_replace_callback($regex, curry(callback_helper,$callback,$notice_id) ,$text);
}
function callback_helper($callback, $notice_id, $matches) {
function callback_helper($matches, $callback, $notice_id) {
$spaces_left = (strlen($matches[0]) - strlen(ltrim($matches[0])));
$spaces_right = (strlen($matches[0]) - strlen(rtrim($matches[0])));
if(empty($notice_id)){
return $callback($matches[1],$notice_id);
$result = call_user_func_array($callback,$matches[1]);
}else{
return $callback($matches[1]);
$result = call_user_func_array($callback, array($matches[1],$notice_id) );
}
return str_repeat(' ',$spaces_left) . $result . str_repeat(' ',$spaces_right);
}
function curry($func, $arity) {
return create_function('', "
\$args = func_get_args();
if(count(\$args) >= $arity)
return call_user_func_array('$func', \$args);
\$args = var_export(\$args, 1);
return create_function('','
\$a = func_get_args();
\$z = ' . \$args . ';
\$a = array_merge(\$z,\$a);
return call_user_func_array(\'$func\', \$a);
');
");
function curry($fn) {
//TODO switch to a PHP 5.3 function closure based approach if PHP 5.3 is used
$args = func_get_args();
array_shift($args);
$id = uniqid('_partial');
$GLOBALS[$id] = array($fn, $args);
return create_function(
'',
'
$args = func_get_args();
return call_user_func_array(
$GLOBALS["'.$id.'"][0],
array_merge(
$args,
$GLOBALS["'.$id.'"][1]));
');
}
function common_linkify($url) {
@ -478,6 +486,11 @@ function common_linkify($url) {
// functions
$url = htmlspecialchars_decode($url);
if(strpos($url, '@')!==false && strpos($url, ':')===false){
//url is an email address without the mailto: protocol
return XMLStringer::estring('a', array('href' => "mailto:$url", 'rel' => 'external'), $url);
}
$canon = File_redirection::_canonUrl($url);
$longurl_data = File_redirection::where($url);