<?php use Friendica\Database\DBM; require_once("include/html2bbcode.php"); require_once("include/items.php"); /** * @brief Read a RSS/RDF/Atom feed and create an item entry for it * * @param string $xml The feed data * @param array $importer The user record of the importer * @param array $contact The contact record of the feed * @param string $hub Unused dummy value for compatibility reasons * @param bool $simulate If enabled, no data is imported * * @return array In simulation mode it returns the header and the first item */ function feed_import($xml,$importer,&$contact, &$hub, $simulate = false) { $a = get_app(); if (!$simulate) { logger("Import Atom/RSS feed '".$contact["name"]."' (Contact ".$contact["id"].") for user ".$importer["uid"], LOGGER_DEBUG); } else { logger("Test Atom/RSS feed", LOGGER_DEBUG); } if ($xml == "") { logger('XML is empty.', LOGGER_DEBUG); return; } if (!empty($contact['poll'])) { $basepath = $contact['poll']; } elseif (!empty($contact['url'])) { $basepath = $contact['url']; } else { $basepath = ''; } $doc = new DOMDocument(); @$doc->loadXML(trim($xml)); $xpath = new DomXPath($doc); $xpath->registerNamespace('atom', NAMESPACE_ATOM1); $xpath->registerNamespace('dc', "http://purl.org/dc/elements/1.1/"); $xpath->registerNamespace('content', "http://purl.org/rss/1.0/modules/content/"); $xpath->registerNamespace('rdf', "http://www.w3.org/1999/02/22-rdf-syntax-ns#"); $xpath->registerNamespace('rss', "http://purl.org/rss/1.0/"); $xpath->registerNamespace('media', "http://search.yahoo.com/mrss/"); $xpath->registerNamespace('poco', NAMESPACE_POCO); $author = array(); // Is it RDF? if ($xpath->query('/rdf:RDF/rss:channel')->length > 0) { $author["author-link"] = $xpath->evaluate('/rdf:RDF/rss:channel/rss:link/text()')->item(0)->nodeValue; $author["author-name"] = $xpath->evaluate('/rdf:RDF/rss:channel/rss:title/text()')->item(0)->nodeValue; if ($author["author-name"] == "") { $author["author-name"] = $xpath->evaluate('/rdf:RDF/rss:channel/rss:description/text()')->item(0)->nodeValue; } $entries = $xpath->query('/rdf:RDF/rss:item'); } // Is it Atom? if ($xpath->query('/atom:feed')->length > 0) { $alternate = $xpath->query("atom:link[@rel='alternate']")->item(0)->attributes; if (is_object($alternate)) { foreach ($alternate AS $attributes) { if ($attributes->name == "href") { $author["author-link"] = $attributes->textContent; } } } if ($author["author-link"] == "") { $author["author-link"] = $author["author-id"]; } if ($author["author-link"] == "") { $self = $xpath->query("atom:link[@rel='self']")->item(0)->attributes; if (is_object($self)) { foreach ($self AS $attributes) { if ($attributes->name == "href") { $author["author-link"] = $attributes->textContent; } } } } if ($author["author-link"] == "") { $author["author-link"] = $xpath->evaluate('/atom:feed/atom:id/text()')->item(0)->nodeValue; } $author["author-avatar"] = $xpath->evaluate('/atom:feed/atom:logo/text()')->item(0)->nodeValue; $author["author-name"] = $xpath->evaluate('/atom:feed/atom:title/text()')->item(0)->nodeValue; if ($author["author-name"] == "") { $author["author-name"] = $xpath->evaluate('/atom:feed/atom:subtitle/text()')->item(0)->nodeValue; } if ($author["author-name"] == "") { $author["author-name"] = $xpath->evaluate('/atom:feed/atom:author/atom:name/text()')->item(0)->nodeValue; } $value = $xpath->evaluate('atom:author/poco:displayName/text()')->item(0)->nodeValue; if ($value != "") { $author["author-name"] = $value; } if ($simulate) { $author["author-id"] = $xpath->evaluate('/atom:feed/atom:author/atom:uri/text()')->item(0)->nodeValue; $value = $xpath->evaluate('atom:author/poco:preferredUsername/text()')->item(0)->nodeValue; if ($value != "") { $author["author-nick"] = $value; } $value = $xpath->evaluate('atom:author/poco:address/poco:formatted/text()', $context)->item(0)->nodeValue; if ($value != "") { $author["author-location"] = $value; } $value = $xpath->evaluate('atom:author/poco:note/text()')->item(0)->nodeValue; if ($value != "") { $author["author-about"] = $value; } $avatar = $xpath->evaluate("atom:author/atom:link[@rel='avatar']")->item(0)->attributes; if (is_object($avatar)) { foreach ($avatar AS $attributes) { if ($attributes->name == "href") { $author["author-avatar"] = $attributes->textContent; } } } } $author["edited"] = $author["created"] = $xpath->query('/atom:feed/atom:updated/text()')->item(0)->nodeValue; $author["app"] = $xpath->evaluate('/atom:feed/atom:generator/text()')->item(0)->nodeValue; $entries = $xpath->query('/atom:feed/atom:entry'); } // Is it RSS? if ($xpath->query('/rss/channel')->length > 0) { $author["author-link"] = $xpath->evaluate('/rss/channel/link/text()')->item(0)->nodeValue; $author["author-name"] = $xpath->evaluate('/rss/channel/title/text()')->item(0)->nodeValue; $author["author-avatar"] = $xpath->evaluate('/rss/channel/image/url/text()')->item(0)->nodeValue; if ($author["author-name"] == "") { $author["author-name"] = $xpath->evaluate('/rss/channel/copyright/text()')->item(0)->nodeValue; } if ($author["author-name"] == "") { $author["author-name"] = $xpath->evaluate('/rss/channel/description/text()')->item(0)->nodeValue; } $author["edited"] = $author["created"] = $xpath->query('/rss/channel/pubDate/text()')->item(0)->nodeValue; $author["app"] = $xpath->evaluate('/rss/channel/generator/text()')->item(0)->nodeValue; $entries = $xpath->query('/rss/channel/item'); } if (!$simulate) { $author["author-link"] = $contact["url"]; if ($author["author-name"] == "") { $author["author-name"] = $contact["name"]; } $author["author-avatar"] = $contact["thumb"]; $author["owner-link"] = $contact["url"]; $author["owner-name"] = $contact["name"]; $author["owner-avatar"] = $contact["thumb"]; } $header = array(); $header["uid"] = $importer["uid"]; $header["network"] = NETWORK_FEED; $header["type"] = "remote"; $header["wall"] = 0; $header["origin"] = 0; $header["gravity"] = GRAVITY_PARENT; $header["private"] = 2; $header["verb"] = ACTIVITY_POST; $header["object-type"] = ACTIVITY_OBJ_NOTE; $header["contact-id"] = $contact["id"]; if (!strlen($contact["notify"])) { // one way feed - no remote comment ability $header["last-child"] = 0; } if (!is_object($entries)) { logger("There are no entries in this feed.", LOGGER_DEBUG); return; } $items = array(); $entrylist = array(); foreach ($entries AS $entry) { $entrylist[] = $entry; } foreach (array_reverse($entrylist) AS $entry) { $item = array_merge($header, $author); $alternate = $xpath->query("atom:link[@rel='alternate']", $entry)->item(0)->attributes; if (!is_object($alternate)) { $alternate = $xpath->query("atom:link", $entry)->item(0)->attributes; } if (is_object($alternate)) { foreach ($alternate AS $attributes) { if ($attributes->name == "href") { $item["plink"] = $attributes->textContent; } } } if ($item["plink"] == "") { $item["plink"] = $xpath->evaluate('link/text()', $entry)->item(0)->nodeValue; } if ($item["plink"] == "") { $item["plink"] = $xpath->evaluate('rss:link/text()', $entry)->item(0)->nodeValue; } $item["uri"] = $xpath->evaluate('atom:id/text()', $entry)->item(0)->nodeValue; if ($item["uri"] == "") { $item["uri"] = $xpath->evaluate('guid/text()', $entry)->item(0)->nodeValue; } if ($item["uri"] == "") { $item["uri"] = $item["plink"]; } $orig_plink = $item["plink"]; $item["plink"] = original_url($item["plink"]); $item["parent-uri"] = $item["uri"]; if (!$simulate) { $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s', '%s')", intval($importer["uid"]), dbesc($item["uri"]), dbesc(NETWORK_FEED), dbesc(NETWORK_DFRN)); if (DBM::is_result($r)) { logger("Item with uri ".$item["uri"]." for user ".$importer["uid"]." already existed under id ".$r[0]["id"], LOGGER_DEBUG); continue; } } $item["title"] = $xpath->evaluate('atom:title/text()', $entry)->item(0)->nodeValue; if ($item["title"] == "") { $item["title"] = $xpath->evaluate('title/text()', $entry)->item(0)->nodeValue; } if ($item["title"] == "") { $item["title"] = $xpath->evaluate('rss:title/text()', $entry)->item(0)->nodeValue; } $published = $xpath->query('atom:published/text()', $entry)->item(0)->nodeValue; if ($published == "") { $published = $xpath->query('pubDate/text()', $entry)->item(0)->nodeValue; } if ($published == "") { $published = $xpath->query('dc:date/text()', $entry)->item(0)->nodeValue; } $updated = $xpath->query('atom:updated/text()', $entry)->item(0)->nodeValue; if ($updated == "") { $updated = $published; } if ($published != "") { $item["created"] = $published; } if ($updated != "") { $item["edited"] = $updated; } $creator = $xpath->query('author/text()', $entry)->item(0)->nodeValue; if ($creator == "") { $creator = $xpath->query('atom:author/atom:name/text()', $entry)->item(0)->nodeValue; } if ($creator == "") { $creator = $xpath->query('dc:creator/text()', $entry)->item(0)->nodeValue; } if ($creator != "") { $item["author-name"] = $creator; } if ($pubDate != "") { $item["edited"] = $item["created"] = $pubDate; } $creator = $xpath->query('dc:creator/text()', $entry)->item(0)->nodeValue; if ($creator != "") { $item["author-name"] = $creator; } /// @TODO ? // <category>Ausland</category> // <media:thumbnail width="152" height="76" url="http://www.taz.de/picture/667875/192/14388767.jpg"/> $attachments = array(); $enclosures = $xpath->query("enclosure", $entry); foreach ($enclosures AS $enclosure) { $href = ""; $length = ""; $type = ""; $title = ""; foreach ($enclosure->attributes AS $attributes) { if ($attributes->name == "url") { $href = $attributes->textContent; } elseif ($attributes->name == "length") { $length = $attributes->textContent; } elseif ($attributes->name == "type") { $type = $attributes->textContent; } } if (strlen($item["attach"])) { $item["attach"] .= ','; } $attachments[] = array("link" => $href, "type" => $type, "length" => $length); $item["attach"] .= '[attach]href="'.$href.'" length="'.$length.'" type="'.$type.'"[/attach]'; } $body = trim($xpath->evaluate('atom:content/text()', $entry)->item(0)->nodeValue); if ($body == "") { $body = trim($xpath->evaluate('content:encoded/text()', $entry)->item(0)->nodeValue); } if ($body == "") { $body = trim($xpath->evaluate('description/text()', $entry)->item(0)->nodeValue); } if ($body == "") { $body = trim($xpath->evaluate('atom:summary/text()', $entry)->item(0)->nodeValue); } // remove the content of the title if it is identically to the body // This helps with auto generated titles e.g. from tumblr if (title_is_body($item["title"], $body)) { $item["title"] = ""; } $item["body"] = html2bbcode($body, $basepath); if (($item["body"] == '') && ($item["title"] != '')) { $item["body"] = $item["title"]; $item["title"] = ''; } if (!empty($contact["fetch_further_information"]) && ($contact["fetch_further_information"] < 3)) { $preview = ""; // Handle enclosures and treat them as preview picture foreach ($attachments AS $attachment) { if ($attachment["type"] == "image/jpeg") { $preview = $attachment["link"]; } } // Remove a possible link to the item itself $item["body"] = str_replace($item["plink"], '', $item["body"]); $item["body"] = preg_replace('/\[url\=\](\w+.*?)\[\/url\]/i', '', $item["body"]); // Replace the content when the title is longer than the body $replace = (strlen($item["title"]) > strlen($item["body"])); // Replace it, when there is an image in the body if (strstr($item["body"], '[/img]')) { $replace = true; } // Replace it, when there is a link in the body if (strstr($item["body"], '[/url]')) { $replace = true; } if ($replace) { $item["body"] = $item["title"]; } // We always strip the title since it will be added in the page information $item["title"] = ""; $item["body"] = $item["body"].add_page_info($item["plink"], false, $preview, ($contact["fetch_further_information"] == 2), $contact["ffi_keyword_blacklist"]); $item["tag"] = add_page_keywords($item["plink"], false, $preview, ($contact["fetch_further_information"] == 2), $contact["ffi_keyword_blacklist"]); $item["object-type"] = ACTIVITY_OBJ_BOOKMARK; unset($item["attach"]); } else { if (!strstr($item["body"], '[url') && ($item['plink'] != '')) { $item["body"] .= "[hr][url]".$item['plink']."[/url]"; } if ($contact["fetch_further_information"] == 3) { $item["tag"] = add_page_keywords($item["plink"], false, $preview, true, $contact["ffi_keyword_blacklist"]); } } if (!$simulate) { logger("Stored feed: ".print_r($item, true), LOGGER_DEBUG); $notify = item_is_remote_self($contact, $item); // Distributed items should have a well formatted URI. // Additionally we have to avoid conflicts with identical URI between imported feeds and these items. if ($notify) { $item['guid'] = uri_to_guid($orig_plink, $a->get_hostname()); unset($item['uri']); unset($item['parent-uri']); } $id = item_store($item, false, $notify); logger("Feed for contact ".$contact["url"]." stored under id ".$id); } else { $items[] = $item; } if ($simulate) { break; } } if ($simulate) { return array("header" => $author, "items" => $items); } }