399 lines
13 KiB
PHP
399 lines
13 KiB
PHP
<?php
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require_once("include/html2bbcode.php");
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require_once("include/items.php");
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/**
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* @brief Read a RSS/RDF/Atom feed and create an item entry for it
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*
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* @param string $xml The feed data
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* @param array $importer The user record of the importer
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* @param array $contact The contact record of the feed
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* @param string $hub Unused dummy value for compatibility reasons
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* @param bool $simulate If enabled, no data is imported
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*
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* @return array In simulation mode it returns the header and the first item
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*/
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function feed_import($xml,$importer,&$contact, &$hub, $simulate = false) {
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$a = get_app();
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if (!$simulate) {
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logger("Import Atom/RSS feed '".$contact["name"]."' (Contact ".$contact["id"].") for user ".$importer["uid"], LOGGER_DEBUG);
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} else {
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logger("Test Atom/RSS feed", LOGGER_DEBUG);
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}
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if ($xml == "") {
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logger('XML is empty.', LOGGER_DEBUG);
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return;
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}
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if (!empty($contact['poll'])) {
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$basepath = $contact['poll'];
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} elseif (!empty($contact['url'])) {
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$basepath = $contact['url'];
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} else {
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$basepath = '';
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}
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$doc = new DOMDocument();
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@$doc->loadXML(trim($xml));
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$xpath = new DomXPath($doc);
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$xpath->registerNamespace('atom', NAMESPACE_ATOM1);
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$xpath->registerNamespace('dc', "http://purl.org/dc/elements/1.1/");
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$xpath->registerNamespace('content', "http://purl.org/rss/1.0/modules/content/");
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$xpath->registerNamespace('rdf', "http://www.w3.org/1999/02/22-rdf-syntax-ns#");
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$xpath->registerNamespace('rss', "http://purl.org/rss/1.0/");
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$xpath->registerNamespace('media', "http://search.yahoo.com/mrss/");
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$xpath->registerNamespace('poco', NAMESPACE_POCO);
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$author = array();
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// Is it RDF?
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if ($xpath->query('/rdf:RDF/rss:channel')->length > 0) {
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$author["author-link"] = $xpath->evaluate('/rdf:RDF/rss:channel/rss:link/text()')->item(0)->nodeValue;
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$author["author-name"] = $xpath->evaluate('/rdf:RDF/rss:channel/rss:title/text()')->item(0)->nodeValue;
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if ($author["author-name"] == "") {
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$author["author-name"] = $xpath->evaluate('/rdf:RDF/rss:channel/rss:description/text()')->item(0)->nodeValue;
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}
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$entries = $xpath->query('/rdf:RDF/rss:item');
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}
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// Is it Atom?
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if ($xpath->query('/atom:feed')->length > 0) {
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$alternate = $xpath->query("atom:link[@rel='alternate']")->item(0)->attributes;
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if (is_object($alternate)) {
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foreach ($alternate AS $attributes) {
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if ($attributes->name == "href") {
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$author["author-link"] = $attributes->textContent;
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}
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}
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}
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if ($author["author-link"] == "") {
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$author["author-link"] = $author["author-id"];
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}
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if ($author["author-link"] == "") {
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$self = $xpath->query("atom:link[@rel='self']")->item(0)->attributes;
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if (is_object($self)) {
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foreach ($self AS $attributes) {
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if ($attributes->name == "href") {
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$author["author-link"] = $attributes->textContent;
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}
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}
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}
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}
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if ($author["author-link"] == "") {
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$author["author-link"] = $xpath->evaluate('/atom:feed/atom:id/text()')->item(0)->nodeValue;
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}
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$author["author-avatar"] = $xpath->evaluate('/atom:feed/atom:logo/text()')->item(0)->nodeValue;
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$author["author-name"] = $xpath->evaluate('/atom:feed/atom:title/text()')->item(0)->nodeValue;
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if ($author["author-name"] == "") {
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$author["author-name"] = $xpath->evaluate('/atom:feed/atom:subtitle/text()')->item(0)->nodeValue;
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}
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if ($author["author-name"] == "") {
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$author["author-name"] = $xpath->evaluate('/atom:feed/atom:author/atom:name/text()')->item(0)->nodeValue;
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}
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$value = $xpath->evaluate('atom:author/poco:displayName/text()')->item(0)->nodeValue;
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if ($value != "") {
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$author["author-name"] = $value;
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}
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if ($simulate) {
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$author["author-id"] = $xpath->evaluate('/atom:feed/atom:author/atom:uri/text()')->item(0)->nodeValue;
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$value = $xpath->evaluate('atom:author/poco:preferredUsername/text()')->item(0)->nodeValue;
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if ($value != "") {
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$author["author-nick"] = $value;
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}
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$value = $xpath->evaluate('atom:author/poco:address/poco:formatted/text()', $context)->item(0)->nodeValue;
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if ($value != "") {
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$author["author-location"] = $value;
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}
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$value = $xpath->evaluate('atom:author/poco:note/text()')->item(0)->nodeValue;
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if ($value != "") {
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$author["author-about"] = $value;
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}
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$avatar = $xpath->evaluate("atom:author/atom:link[@rel='avatar']")->item(0)->attributes;
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if (is_object($avatar)) {
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foreach ($avatar AS $attributes) {
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if ($attributes->name == "href") {
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$author["author-avatar"] = $attributes->textContent;
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}
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}
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}
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}
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$author["edited"] = $author["created"] = $xpath->query('/atom:feed/atom:updated/text()')->item(0)->nodeValue;
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$author["app"] = $xpath->evaluate('/atom:feed/atom:generator/text()')->item(0)->nodeValue;
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$entries = $xpath->query('/atom:feed/atom:entry');
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}
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// Is it RSS?
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if ($xpath->query('/rss/channel')->length > 0) {
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$author["author-link"] = $xpath->evaluate('/rss/channel/link/text()')->item(0)->nodeValue;
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$author["author-name"] = $xpath->evaluate('/rss/channel/title/text()')->item(0)->nodeValue;
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$author["author-avatar"] = $xpath->evaluate('/rss/channel/image/url/text()')->item(0)->nodeValue;
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if ($author["author-name"] == "") {
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$author["author-name"] = $xpath->evaluate('/rss/channel/copyright/text()')->item(0)->nodeValue;
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}
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if ($author["author-name"] == "") {
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$author["author-name"] = $xpath->evaluate('/rss/channel/description/text()')->item(0)->nodeValue;
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}
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$author["edited"] = $author["created"] = $xpath->query('/rss/channel/pubDate/text()')->item(0)->nodeValue;
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$author["app"] = $xpath->evaluate('/rss/channel/generator/text()')->item(0)->nodeValue;
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$entries = $xpath->query('/rss/channel/item');
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}
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if (!$simulate) {
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$author["author-link"] = $contact["url"];
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if ($author["author-name"] == "") {
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$author["author-name"] = $contact["name"];
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}
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$author["author-avatar"] = $contact["thumb"];
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$author["owner-link"] = $contact["url"];
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$author["owner-name"] = $contact["name"];
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$author["owner-avatar"] = $contact["thumb"];
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}
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$header = array();
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$header["uid"] = $importer["uid"];
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$header["network"] = NETWORK_FEED;
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$header["type"] = "remote";
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$header["wall"] = 0;
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$header["origin"] = 0;
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$header["gravity"] = GRAVITY_PARENT;
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$header["private"] = 2;
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$header["verb"] = ACTIVITY_POST;
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$header["object-type"] = ACTIVITY_OBJ_NOTE;
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$header["contact-id"] = $contact["id"];
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if (!strlen($contact["notify"])) {
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// one way feed - no remote comment ability
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$header["last-child"] = 0;
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}
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if (!is_object($entries)) {
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logger("There are no entries in this feed.", LOGGER_DEBUG);
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return;
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}
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$items = array();
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$entrylist = array();
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foreach ($entries AS $entry) {
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$entrylist[] = $entry;
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}
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foreach (array_reverse($entrylist) AS $entry) {
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$item = array_merge($header, $author);
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$alternate = $xpath->query("atom:link[@rel='alternate']", $entry)->item(0)->attributes;
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if (!is_object($alternate)) {
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$alternate = $xpath->query("atom:link", $entry)->item(0)->attributes;
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}
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if (is_object($alternate)) {
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foreach ($alternate AS $attributes) {
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if ($attributes->name == "href") {
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$item["plink"] = $attributes->textContent;
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}
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}
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}
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if ($item["plink"] == "") {
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$item["plink"] = $xpath->evaluate('link/text()', $entry)->item(0)->nodeValue;
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}
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if ($item["plink"] == "") {
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$item["plink"] = $xpath->evaluate('rss:link/text()', $entry)->item(0)->nodeValue;
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}
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$item["uri"] = $xpath->evaluate('atom:id/text()', $entry)->item(0)->nodeValue;
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if ($item["uri"] == "") {
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$item["uri"] = $xpath->evaluate('guid/text()', $entry)->item(0)->nodeValue;
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}
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if ($item["uri"] == "") {
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$item["uri"] = $item["plink"];
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}
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$orig_plink = $item["plink"];
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$item["plink"] = original_url($item["plink"]);
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$item["parent-uri"] = $item["uri"];
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if (!$simulate) {
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$r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s', '%s')",
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intval($importer["uid"]), dbesc($item["uri"]), dbesc(NETWORK_FEED), dbesc(NETWORK_DFRN));
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if (dbm::is_result($r)) {
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logger("Item with uri ".$item["uri"]." for user ".$importer["uid"]." already existed under id ".$r[0]["id"], LOGGER_DEBUG);
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continue;
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}
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}
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$item["title"] = $xpath->evaluate('atom:title/text()', $entry)->item(0)->nodeValue;
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if ($item["title"] == "") {
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$item["title"] = $xpath->evaluate('title/text()', $entry)->item(0)->nodeValue;
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}
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if ($item["title"] == "") {
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$item["title"] = $xpath->evaluate('rss:title/text()', $entry)->item(0)->nodeValue;
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}
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$published = $xpath->query('atom:published/text()', $entry)->item(0)->nodeValue;
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if ($published == "") {
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$published = $xpath->query('pubDate/text()', $entry)->item(0)->nodeValue;
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}
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if ($published == "") {
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$published = $xpath->query('dc:date/text()', $entry)->item(0)->nodeValue;
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}
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$updated = $xpath->query('atom:updated/text()', $entry)->item(0)->nodeValue;
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if ($updated == "") {
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$updated = $published;
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}
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if ($published != "") {
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$item["created"] = $published;
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}
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if ($updated != "") {
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$item["edited"] = $updated;
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}
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$creator = $xpath->query('author/text()', $entry)->item(0)->nodeValue;
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if ($creator == "") {
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$creator = $xpath->query('atom:author/atom:name/text()', $entry)->item(0)->nodeValue;
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}
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if ($creator == "") {
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$creator = $xpath->query('dc:creator/text()', $entry)->item(0)->nodeValue;
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}
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if ($creator != "") {
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$item["author-name"] = $creator;
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}
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if ($pubDate != "") {
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$item["edited"] = $item["created"] = $pubDate;
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}
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$creator = $xpath->query('dc:creator/text()', $entry)->item(0)->nodeValue;
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if ($creator != "") {
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$item["author-name"] = $creator;
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}
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/// @TODO ?
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// <category>Ausland</category>
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// <media:thumbnail width="152" height="76" url="http://www.taz.de/picture/667875/192/14388767.jpg"/>
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$attachments = array();
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$enclosures = $xpath->query("enclosure", $entry);
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foreach ($enclosures AS $enclosure) {
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$href = "";
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$length = "";
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$type = "";
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$title = "";
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foreach ($enclosure->attributes AS $attributes) {
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if ($attributes->name == "url") {
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$href = $attributes->textContent;
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} elseif ($attributes->name == "length") {
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$length = $attributes->textContent;
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} elseif ($attributes->name == "type") {
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$type = $attributes->textContent;
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}
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}
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if (strlen($item["attach"])) {
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$item["attach"] .= ',';
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}
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$attachments[] = array("link" => $href, "type" => $type, "length" => $length);
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$item["attach"] .= '[attach]href="'.$href.'" length="'.$length.'" type="'.$type.'"[/attach]';
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}
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$body = trim($xpath->evaluate('atom:content/text()', $entry)->item(0)->nodeValue);
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if ($body == "") {
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$body = trim($xpath->evaluate('content:encoded/text()', $entry)->item(0)->nodeValue);
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}
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if ($body == "") {
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$body = trim($xpath->evaluate('description/text()', $entry)->item(0)->nodeValue);
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}
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if ($body == "") {
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$body = trim($xpath->evaluate('atom:summary/text()', $entry)->item(0)->nodeValue);
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}
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// remove the content of the title if it is identically to the body
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// This helps with auto generated titles e.g. from tumblr
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if (title_is_body($item["title"], $body)) {
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$item["title"] = "";
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}
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$item["body"] = html2bbcode($body, $basepath);
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if (($item["body"] == '') && ($item["title"] != '')) {
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$item["body"] = $item["title"];
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$item["title"] = '';
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}
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if ($contact["fetch_further_information"]) {
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$preview = "";
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// Handle enclosures and treat them as preview picture
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foreach ($attachments AS $attachment) {
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if ($attachment["type"] == "image/jpeg") {
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$preview = $attachment["link"];
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}
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}
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if (strlen($item["title"]) > strlen($item["body"])) {
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//echo "*".strlen($item["title"]).">".strlen($item["body"])."\n";
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$item["body"] = $item["title"];
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$item["title"] = "";
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}
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$item["body"] = $item["body"].add_page_info($item["plink"], false, $preview, ($contact["fetch_further_information"] == 2), $contact["ffi_keyword_blacklist"]);
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$item["tag"] = add_page_keywords($item["plink"], false, $preview, ($contact["fetch_further_information"] == 2), $contact["ffi_keyword_blacklist"]);
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$item["object-type"] = ACTIVITY_OBJ_BOOKMARK;
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unset($item["attach"]);
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} else {
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if (!strstr($item["body"], '[url') && ($item['plink'] != '')) {
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$item["body"] .= "[hr][url]".$item['plink']."[/url]";
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}
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}
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if (!$simulate) {
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logger("Stored feed: ".print_r($item, true), LOGGER_DEBUG);
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$notify = item_is_remote_self($contact, $item);
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// Distributed items should have a well formatted URI.
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// Additionally we have to avoid conflicts with identical URI between imported feeds and these items.
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if ($notify) {
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$item['guid'] = uri_to_guid($orig_plink, $a->get_hostname());
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unset($item['uri']);
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unset($item['parent-uri']);
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}
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$id = item_store($item, false, $notify);
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logger("Feed for contact ".$contact["url"]." stored under id ".$id);
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} else {
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$items[] = $item;
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}
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if ($simulate) {
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break;
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}
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}
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if ($simulate) {
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return array("header" => $author, "items" => $items);
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}
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}
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