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Improved scraping and poco discovery.

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This commit is contained in:
Michael Vogel
2015-07-22 11:51:37 +02:00
parent 9717fa82fe
commit 749a646480
2 changed files with 137 additions and 55 deletions
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74
include/Scrape.php
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@@ -249,7 +249,7 @@ function scrape_feed($url) {
$ret['feed_atom'] = $url;
return $ret;
}
if(stristr($line,'application/rss+xml') || stristr($s,'<rss')) {
if(stristr($line,'application/rss+xml') || stristr($s,'<rss')) {
$ret['feed_rss'] = $url;
return $ret;
}
@@ -262,47 +262,40 @@ function scrape_feed($url) {
}
}
try {
$dom = HTML5_Parser::parse($s);
} catch (DOMException $e) {
logger('scrape_feed: parse error: ' . $e);
$basename = implode('/', array_slice(explode('/',$url),0,3)) . '/';
$doc = new DOMDocument();
@$doc->loadHTML($s);
$xpath = new DomXPath($doc);
$base = $xpath->query("//base");
foreach ($base as $node) {
$attr = array();
if ($node->attributes->length)
foreach ($node->attributes as $attribute)
$attr[$attribute->name] = $attribute->value;
if ($attr["href"] != "")
$basename = $attr["href"] ;
}
if(! $dom) {
logger('scrape_feed: failed to parse.');
return $ret;
$list = $xpath->query("//link");
foreach ($list as $node) {
$attr = array();
if ($node->attributes->length)
foreach ($node->attributes as $attribute)
$attr[$attribute->name] = $attribute->value;
if (($attr["rel"] == "alternate") AND ($attr["type"] == "application/atom+xml"))
$ret["feed_atom"] = $attr["href"];
if (($attr["rel"] == "alternate") AND ($attr["type"] == "application/rss+xml"))
$ret["feed_rss"] = $attr["href"];
}
$head = $dom->getElementsByTagName('base');
if($head) {
foreach($head as $head0) {
$basename = $head0->getAttribute('href');
break;
}
}
if(! $basename)
$basename = implode('/', array_slice(explode('/',$url),0,3)) . '/';
$items = $dom->getElementsByTagName('link');
// get Atom/RSS link elements, take the first one of either.
if($items) {
foreach($items as $item) {
$x = $item->getAttribute('rel');
if(($x === 'alternate') && ($item->getAttribute('type') === 'application/atom+xml')) {
if(! x($ret,'feed_atom'))
$ret['feed_atom'] = $item->getAttribute('href');
}
if(($x === 'alternate') && ($item->getAttribute('type') === 'application/rss+xml')) {
if(! x($ret,'feed_rss'))
$ret['feed_rss'] = $item->getAttribute('href');
}
}
}
// Drupal and perhaps others only provide relative URL's. Turn them into absolute.
// Drupal and perhaps others only provide relative URLs. Turn them into absolute.
if(x($ret,'feed_atom') && (! strstr($ret['feed_atom'],'://')))
$ret['feed_atom'] = $basename . $ret['feed_atom'];
@@ -509,6 +502,7 @@ function probe_url($url, $mode = PROBE_NORMAL, $level = 1) {
}
if($mode == PROBE_NORMAL) {
if(strlen($zot)) {
$s = fetch_url($zot);
if($s) {
@@ -528,6 +522,7 @@ function probe_url($url, $mode = PROBE_NORMAL, $level = 1) {
}
}
if(strlen($dfrn)) {
$ret = scrape_dfrn(($hcard) ? $hcard : $dfrn);
if(is_array($ret) && x($ret,'dfrn-request')) {
@@ -634,6 +629,7 @@ function probe_url($url, $mode = PROBE_NORMAL, $level = 1) {
if($check_feed) {
$feedret = scrape_feed(($poll) ? $poll : $url);
logger('probe_url: scrape_feed ' . (($poll)? $poll : $url) . ' returns: ' . print_r($feedret,true), LOGGER_DATA);
if(count($feedret) && ($feedret['feed_atom'] || $feedret['feed_rss'])) {
$poll = ((x($feedret,'feed_atom')) ? unamp($feedret['feed_atom']) : unamp($feedret['feed_rss']));
@@ -653,7 +649,7 @@ function probe_url($url, $mode = PROBE_NORMAL, $level = 1) {
logger('probe_url: scrape_feed: headers: ' . $a->get_curl_headers(), LOGGER_DATA);
// Don't try and parse an empty string
$feed->set_raw_data(($xml) ? $xml : '<?xml version="1.0" encoding="utf-8" ?><xml></xml>');
$feed->set_raw_data(($xml) ? $xml : '<?xml version="1.0" encoding="utf-8" ?><xml></xml>');
$feed->init();
if($feed->error())