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add test implementation of automatic rewrite of relative urls based on DOMDocument

This commit is contained in:
Andrew Dolgov 2010-11-10 23:24:00 +03:00
parent f8fb44989f
commit 8cc3c778ad
1 changed files with 65 additions and 7 deletions
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70
functions.php
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@ -3701,7 +3701,8 @@
} */
function sanitize_rss($link, $str, $force_strip_tags = false, $owner = false) {
function sanitize_rss($link, $str, $force_strip_tags = false, $owner = false, $site_url = false) {
$res = $str;
if (!$owner) $owner = $_SESSION["uid"];
@ -3720,11 +3721,39 @@
$res = preg_replace('/<img[^>]+>/is', '', $res);
}
if (get_pref($link, 'OPEN_LINKS_IN_NEW_WINDOW', $owner)) {
$res = preg_replace("/href=/i", "target=\"_blank\" href=", $res);
$charset_hack = '<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
</head>';
libxml_use_internal_errors(true);
$doc = new DOMDocument();
$doc->loadHTML($charset_hack . $res);
$xpath = new DOMXPath($doc);
$entries = $xpath->query('(//a[@href]|//img[@src])');
foreach ($entries as $entry) {
if ($site_url) {
if ($entry->hasAttribute('href'))
$entry->setAttribute('href',
rewrite_relative_url($site_url, $entry->getAttribute('href')));
if ($entry->hasAttribute('src'))
$entry->setAttribute('src',
rewrite_relative_url($site_url, $entry->getAttribute('src')));
}
return $res;
if (get_pref($link, 'OPEN_LINKS_IN_NEW_WINDOW', $owner)) {
$entry->setAttribute("target", "_blank");
}
}
$node = $doc->getElementsByTagName('body')->item(0)->firstChild;
return $doc->saveXML($node);
}
/**
@ -4755,6 +4784,7 @@
$result = db_query($link, "SELECT title,link,content,feed_id,comments,int_id,
".SUBSTRING_FOR_DATE."(updated,1,16) as updated,
(SELECT icon_url FROM ttrss_feeds WHERE id = feed_id) as icon_url,
(SELECT site_url FROM ttrss_feeds WHERE id = feed_id) as site_url,
num_comments,
author,
orig_feed_id,
@ -4772,6 +4802,8 @@
$feed_icon = "&nbsp;";
}
$feed_site_url = $line['site_url'];
$num_comments = $line["num_comments"];
$entry_comments = "";
@ -4891,7 +4923,8 @@
print "<div class=\"postContent\">";
$article_content = sanitize_rss($link, $line["content"]);
$article_content = sanitize_rss($link, $line["content"], false, false,
$feed_site_url);
print "<div id=\"POSTNOTE-$id\">";
if ($line['note']) {
@ -5388,7 +5421,8 @@
}
}
$article_content = sanitize_rss($link, $line["content_preview"]);
$article_content = sanitize_rss($link, $line["content_preview"],
false, false, $feed_site_url);
print "<div id=\"POSTNOTE-$id\">";
if ($line['note']) {
@ -7018,4 +7052,28 @@
return -1;
}
}
function build_url($parts) {
return $parts['scheme'] . "://" . $parts['host'] . $parts['path'];
}
function rewrite_relative_url($url, $rel_url) {
if (strpos($rel_url, "://") !== false) {
return $rel_url;
} else if (strpos($rel_url, "/") === 0)
{
$parts = parse_url($url);
$parts['path'] = $rel_url;
return build_url($parts);
} else {
$parts = parse_url($url);
$parts['path'] = dirname($parts['path']) . "/$rel_url";
return build_url($parts);
}
}
?>