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-rw-r--r--include/salmon.php63
1 files changed, 39 insertions, 24 deletions
diff --git a/include/salmon.php b/include/salmon.php
index bd2d620a8..52810426f 100644
--- a/include/salmon.php
+++ b/include/salmon.php
@@ -43,48 +43,48 @@ function get_salmon_key($uri,$keyhash) {
$a = get_app();
$h = $a->get_curl_headers();
if($debugging)
- file_put_contents('salmon.out', "\n" . 'Fetch key via HTML header: ' . $h . "\n", FILE_APPEND);
+ file_put_contents('salmon.out', "\n" . 'Fetch key via HTTP header: ' . $h . "\n", FILE_APPEND);
$l = explode("\n",$h);
if(count($l)) {
- foreach($l as $line) {
-
- if($debugging)
- file_put_contents('salmon.out', "\n" . $line . "\n", FILE_APPEND);
+ foreach($l as $line) {
if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
$link = $matches[1];
if($debugging)
- file_put_contents('salmon.out', "\n" . 'Fetch key via Link from header: ' . $link . "\n", FILE_APPEND);
+ file_put_contents('salmon.out', "\n" . 'Fetch key via HTML Link: ' . $link . "\n", FILE_APPEND);
break;
}
}
}
- }
- if(! isset($link)) {
- require_once('library/HTML5/Parser.php');
- $dom = HTML5_Parser::parse($html);
+ if(! isset($link)) {
- if(! $dom)
- return '';
+ // parse the page of the supplied URL looking for rel links
+
+ require_once('library/HTML5/Parser.php');
+ $dom = HTML5_Parser::parse($html);
- $items = $dom->getElementsByTagName('link');
+ if(! $dom)
+ return '';
- foreach($items as $item) {
- $x = $item->getAttribute('rel');
- if($x == "lrdd") {
- $link = $item->getAttribute('href');
- if($debugging)
- file_put_contents('salmon.out', "\n" . 'Fetch key via HTML body' . $link . "\n", FILE_APPEND);
- break;
+ $items = $dom->getElementsByTagName('link');
+
+ foreach($items as $item) {
+ $x = $item->getAttribute('rel');
+ if($x == "lrdd") {
+ $link = $item->getAttribute('href');
+ if($debugging)
+ file_put_contents('salmon.out', "\n" . 'Fetch key via HTML body' . $link . "\n", FILE_APPEND);
+ break;
+ }
}
}
- }
- if(! isset($link))
- return '';
+ if(! isset($link))
+ return '';
- $arr = fetch_xrd_links($link);
+ $arr = fetch_xrd_links($link);
+ }
if($arr) {
foreach($arr as $a) {
@@ -93,6 +93,13 @@ function get_salmon_key($uri,$keyhash) {
}
}
}
+ else {
+ return '';
+ }
+
+ // We have found at least one key URL
+ // If it's inline, parse it - otherwise get the key
+
if(count($ret)) {
for($x = 0; $x < count($ret); $x ++) {
if(substr($ret[$x],0,5) === 'data:') {
@@ -105,10 +112,18 @@ function get_salmon_key($uri,$keyhash) {
$ret[$x] = fetch_url($ret[$x]);
}
}
+
if($debugging)
file_put_contents('salmon.out', "\n" . 'Key located: ' . print_r($ret,true) . "\n", FILE_APPEND);
if(count($ret) == 1) {
+
+ // We only found one one key so we don't care if the hash matches.
+ // If it's the wrong key we'll find out soon enough because
+ // message verification will fail. This also covers some older
+ // software which don't supply a keyhash. As long as they only
+ // have one key we'll be right.
+
return $ret[0];
}
else {