<?php
/**
- * @copyright Copyright (C) 2020, Friendica
+ * @copyright Copyright (C) 2010-2021, the Friendica project
*
* @license GNU AGPL version 3 or any later version
*
use DOMDocument;
use DOMXPath;
+use Friendica\Content\PageInfo;
+use Friendica\Content\Text\BBCode;
use Friendica\Content\Text\HTML;
+use Friendica\Core\Cache\Duration;
use Friendica\Core\Logger;
use Friendica\Core\Protocol;
use Friendica\Database\DBA;
use Friendica\DI;
+use Friendica\Model\Contact;
use Friendica\Model\Item;
+use Friendica\Model\Post;
use Friendica\Model\Tag;
+use Friendica\Model\User;
+use Friendica\Util\DateTimeFormat;
use Friendica\Util\Network;
use Friendica\Util\ParseUrl;
+use Friendica\Util\Proxy;
+use Friendica\Util\Strings;
use Friendica\Util\XML;
+use GuzzleHttp\Exception\TransferException;
/**
* This class contain functions to import feeds (RSS/RDF/Atom)
*/
class Feed
{
- /**
- * consume - process atom feed and update anything/everything we might need to update
- *
- * $xml = the (atom) feed to consume - RSS isn't as fully supported but may work for simple feeds.
- *
- * $importer = the contact_record (joined to user_record) of the local user who owns this relationship.
- * It is this person's stuff that is going to be updated.
- * $contact = the person who is sending us stuff. If not set, we MAY be processing a "follow" activity
- * from an external network and MAY create an appropriate contact record. Otherwise, we MUST
- * have a contact record.
- * $hub = should we find a hub declation in the feed, pass it back to our calling process, who might (or
- * might not) try and subscribe to it.
- * $datedir sorts in reverse order
- * $pass - by default ($pass = 0) we cannot guarantee that a parent item has been
- * imported prior to its children being seen in the stream unless we are certain
- * of how the feed is arranged/ordered.
- * With $pass = 1, we only pull parent items out of the stream.
- * With $pass = 2, we only pull children (comments/likes).
- *
- * So running this twice, first with pass 1 and then with pass 2 will do the right
- * thing regardless of feed ordering. This won't be adequate in a fully-threaded
- * model where comments can have sub-threads. That would require some massive sorting
- * to get all the feed items into a mostly linear ordering, and might still require
- * recursion.
- *
- * @param $xml
- * @param array $importer
- * @param array $contact
- * @param $hub
- * @throws ImagickException
- * @throws \Friendica\Network\HTTPException\InternalServerErrorException
- */
- public static function consume($xml, array $importer, array $contact, &$hub)
- {
- if ($contact['network'] === Protocol::OSTATUS) {
- Logger::info('Consume OStatus messages');
- OStatus::import($xml, $importer, $contact, $hub);
-
- return;
- }
-
- if ($contact['network'] === Protocol::FEED) {
- Logger::info('Consume feeds');
- self::import($xml, $importer, $contact);
-
- return;
- }
-
- if ($contact['network'] === Protocol::DFRN) {
- Logger::info('Consume DFRN messages');
- $dfrn_importer = DFRN::getImporter($contact['id'], $importer['uid']);
- if (!empty($dfrn_importer)) {
- Logger::info('Now import the DFRN feed');
- DFRN::import($xml, $dfrn_importer, true);
- return;
- }
- }
- }
-
/**
* Read a RSS/RDF/Atom feed and create an item entry for it
*
$header["private"] = Item::PUBLIC;
$header["verb"] = Activity::POST;
$header["object-type"] = Activity\ObjectType::NOTE;
+ $header["post-type"] = Item::PT_ARTICLE;
$header["contact-id"] = $contact["id"] ?? 0;
}
$items = [];
+ $creation_dates = [];
// Limit the number of items that are about to be fetched
$total_items = ($entries->length - 1);
$total_items = $max_items;
}
+ $postings = [];
+
// Importing older entries first
for ($i = $total_items; $i >= 0; --$i) {
$entry = $entries->item($i);
$item["uri"] = $item["plink"];
}
- $orig_plink = $item["plink"];
-
- $item["plink"] = Network::finalUrl($item["plink"]);
+ // Add the base path if missing
+ $item["uri"] = Network::addBasePath($item["uri"], $basepath);
+ $item["plink"] = Network::addBasePath($item["plink"], $basepath);
- $item["parent-uri"] = $item["uri"];
+ $orig_plink = $item["plink"];
- if (!$dryRun) {
- $condition = ["`uid` = ? AND `uri` = ? AND `network` IN (?, ?)",
- $importer["uid"], $item["uri"], Protocol::FEED, Protocol::DFRN];
- $previous = Item::selectFirst(['id'], $condition);
- if (DBA::isResult($previous)) {
- Logger::info("Item with uri " . $item["uri"] . " for user " . $importer["uid"] . " already existed under id " . $previous["id"]);
- continue;
- }
+ try {
+ $item["plink"] = DI::httpClient()->finalUrl($item["plink"]);
+ } catch (TransferException $exception) {
+ Logger::notice('Item URL couldn\'t get expanded', ['url' => $item["plink"], 'exception' => $exception]);
}
$item["title"] = XML::getFirstNodeValue($xpath, 'atom:title/text()', $entry);
$item["edited"] = $updated;
}
+ if (!$dryRun) {
+ $condition = ["`uid` = ? AND `uri` = ? AND `network` IN (?, ?)",
+ $importer["uid"], $item["uri"], Protocol::FEED, Protocol::DFRN];
+ $previous = Post::selectFirst(['id', 'created'], $condition);
+ if (DBA::isResult($previous)) {
+ // Use the creation date when the post had been stored. It can happen this date changes in the feed.
+ $creation_dates[] = $previous['created'];
+ Logger::info("Item with uri " . $item["uri"] . " for user " . $importer["uid"] . " already existed under id " . $previous["id"]);
+ continue;
+ }
+ $creation_dates[] = DateTimeFormat::utc($item['created']);
+ }
+
$creator = XML::getFirstNodeValue($xpath, 'author/text()', $entry);
if (empty($creator)) {
$enclosures = $xpath->query("enclosure|atom:link[@rel='enclosure']", $entry);
foreach ($enclosures AS $enclosure) {
$href = "";
- $length = "";
- $type = "";
+ $length = null;
+ $type = null;
foreach ($enclosure->attributes AS $attribute) {
if (in_array($attribute->name, ["url", "href"])) {
$href = $attribute->textContent;
} elseif ($attribute->name == "length") {
- $length = $attribute->textContent;
+ $length = (int)$attribute->textContent;
} elseif ($attribute->name == "type") {
$type = $attribute->textContent;
}
}
- if (!empty($item["attach"])) {
- $item["attach"] .= ',';
- } else {
- $item["attach"] = '';
+ if (!empty($href)) {
+ $attachments[] = ['type' => Post\Media::DOCUMENT, 'url' => $href, 'mimetype' => $type, 'size' => $length];
}
-
- $attachments[] = ["link" => $href, "type" => $type, "length" => $length];
-
- $item["attach"] .= '[attach]href="' . $href . '" length="' . $length . '" type="' . $type . '"[/attach]';
}
$taglist = [];
}
$item["body"] = HTML::toBBCode($body, $basepath);
+ // Remove tracking pixels
+ $item["body"] = preg_replace("/\[img=1x1\]([^\[\]]*)\[\/img\]/Usi", '', $item["body"]);
+
if (($item["body"] == '') && ($item["title"] != '')) {
$item["body"] = $item["title"];
$item["title"] = '';
}
+ if ($dryRun) {
+ $items[] = $item;
+ break;
+ } elseif (!Item::isValid($item)) {
+ Logger::info('Feed item is invalid', ['created' => $item['created'], 'uid' => $item['uid'], 'uri' => $item['uri']]);
+ continue;
+ } elseif (Item::isTooOld($item)) {
+ Logger::info('Feed is too old', ['created' => $item['created'], 'uid' => $item['uid'], 'uri' => $item['uri']]);
+ continue;
+ }
+
$preview = '';
if (!empty($contact["fetch_further_information"]) && ($contact["fetch_further_information"] < 3)) {
// Handle enclosures and treat them as preview picture
foreach ($attachments AS $attachment) {
- if ($attachment["type"] == "image/jpeg") {
- $preview = $attachment["link"];
+ if ($attachment["mimetype"] == "image/jpeg") {
+ $preview = $attachment["url"];
}
}
$replace = true;
}
+ $saved_body = $item["body"];
+ $saved_title = $item["title"];
+
if ($replace) {
$item["body"] = trim($item["title"]);
}
- $data = ParseUrl::getSiteinfoCached($item['plink'], true);
+ $data = ParseUrl::getSiteinfoCached($item['plink']);
if (!empty($data['text']) && !empty($data['title']) && (mb_strlen($item['body']) < mb_strlen($data['text']))) {
// When the fetched page info text is longer than the body, we do try to enhance the body
if (!empty($item['body']) && (strpos($data['title'], $item['body']) === false) && (strpos($data['text'], $item['body']) === false)) {
}
}
- // 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_denylist"] ?? '');
- $taglist = get_page_keywords($item["plink"], $preview, ($contact["fetch_further_information"] == 2), $contact["ffi_keyword_denylist"]);
- $item["object-type"] = Activity\ObjectType::BOOKMARK;
- unset($item["attach"]);
+ $data = PageInfo::queryUrl($item["plink"], false, $preview, ($contact["fetch_further_information"] == 2), $contact["ffi_keyword_denylist"] ?? '');
+
+ if (!empty($data)) {
+ // Take the data that was provided by the feed if the query is empty
+ if (($data['type'] == 'link') && empty($data['title']) && empty($data['text'])) {
+ $data['title'] = $saved_title;
+ $item["body"] = $saved_body;
+ }
+
+ $data_text = strip_tags(trim($data['text'] ?? ''));
+ $item_body = strip_tags(trim($item['body'] ?? ''));
+
+ if (!empty($data_text) && (($data_text == $item_body) || strstr($item_body, $data_text))) {
+ $data['text'] = '';
+ }
+
+ // We always strip the title since it will be added in the page information
+ $item["title"] = "";
+ $item["body"] = $item["body"] . "\n" . PageInfo::getFooterFromData($data, false);
+ $taglist = $contact["fetch_further_information"] == 2 ? PageInfo::getTagsFromUrl($item["plink"], $preview, $contact["ffi_keyword_denylist"] ?? '') : [];
+ $item["object-type"] = Activity\ObjectType::BOOKMARK;
+ $attachments = [];
+ }
} else {
if (!empty($summary)) {
$item["body"] = '[abstract]' . HTML::toBBCode($summary, $basepath) . "[/abstract]\n" . $item["body"];
if (!empty($contact["fetch_further_information"]) && ($contact["fetch_further_information"] == 3)) {
if (empty($taglist)) {
- $taglist = get_page_keywords($item["plink"], $preview, true, $contact["ffi_keyword_denylist"]);
+ $taglist = PageInfo::getTagsFromUrl($item["plink"], $preview, $contact["ffi_keyword_denylist"] ?? '');
}
$item["body"] .= "\n" . self::tagToString($taglist);
} else {
}
}
- if ($dryRun) {
- $items[] = $item;
- break;
- } else {
- Logger::info('Stored feed', ['item' => $item]);
+ if (empty($item['title'])) {
+ $item['post-type'] = Item::PT_NOTE;
+ }
+
+ Logger::info('Stored feed', ['item' => $item]);
+
+ $notify = Item::isRemoteSelf($contact, $item);
- $notify = Item::isRemoteSelf($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) {
+ $item['guid'] = Item::guidFromUri($orig_plink, DI::baseUrl()->getHostname());
+ $item['uri'] = Item::newURI($item['uid'], $item['guid']);
+ unset($item['thr-parent']);
+ unset($item['parent-uri']);
- // Distributed items should have a well formatted URI.
- // Additionally we have to avoid conflicts with identical URI between imported feeds and these items.
- if ($notify) {
- $item['guid'] = Item::guidFromUri($orig_plink, DI::baseUrl()->getHostname());
- unset($item['uri']);
- unset($item['parent-uri']);
+ // Set the delivery priority for "remote self" to "medium"
+ $notify = PRIORITY_MEDIUM;
+ }
- // Set the delivery priority for "remote self" to "medium"
- $notify = PRIORITY_MEDIUM;
+ $condition = ['uid' => $item['uid'], 'uri' => $item['uri']];
+ if (!Post::exists($condition) && !Post\Delayed::exists($item["uri"], $item['uid'])) {
+ if (!$notify) {
+ Post\Delayed::publish($item, $notify, $taglist, $attachments);
+ } else {
+ $postings[] = ['item' => $item, 'notify' => $notify,
+ 'taglist' => $taglist, 'attachments' => $attachments];
}
+ } else {
+ Logger::info('Post already created or exists in the delayed posts queue', ['uid' => $item['uid'], 'uri' => $item["uri"]]);
+ }
+ }
+
+ if (!empty($postings)) {
+ $min_posting = DI::config()->get('system', 'minimum_posting_interval', 0);
+ $total = count($postings);
+ if ($total > 1) {
+ // Posts shouldn't be delayed more than a day
+ $interval = min(1440, self::getPollInterval($contact));
+ $delay = max(round(($interval * 60) / $total), 60 * $min_posting);
+ Logger::info('Got posting delay', ['delay' => $delay, 'interval' => $interval, 'items' => $total, 'cid' => $contact['id'], 'url' => $contact['url']]);
+ } else {
+ $delay = 0;
+ }
+
+ $post_delay = 0;
- $id = Item::insert($item, $notify);
+ foreach ($postings as $posting) {
+ if ($delay > 0) {
+ $publish_time = time() + $post_delay;
+ $post_delay += $delay;
+ } else {
+ $publish_time = time();
+ }
- Logger::info("Feed for contact " . $contact["url"] . " stored under id " . $id);
+ $last_publish = DI::pConfig()->get($posting['item']['uid'], 'system', 'last_publish', 0, true);
+ $next_publish = max($last_publish + (60 * $min_posting), time());
+ if ($publish_time < $next_publish) {
+ $publish_time = $next_publish;
+ }
+ $publish_at = date(DateTimeFormat::MYSQL, $publish_time);
- if (!empty($id) && !empty($taglist)) {
- $feeditem = Item::selectFirst(['uri-id'], ['id' => $id]);
- foreach ($taglist as $tag) {
- Tag::store($feeditem['uri-id'], Tag::HASHTAG, $tag);
- }
+ if (Post\Delayed::add($posting['item']['uri'], $posting['item'], $posting['notify'], Post\Delayed::PREPARED, $publish_at, $posting['taglist'], $posting['attachments'])) {
+ DI::pConfig()->set($item['uid'], 'system', 'last_publish', $publish_time);
}
}
}
+ if (!$dryRun && DI::config()->get('system', 'adjust_poll_frequency')) {
+ self::adjustPollFrequency($contact, $creation_dates);
+ }
+
return ["header" => $author, "items" => $items];
}
+ /**
+ * Automatically adjust the poll frequency according to the post frequency
+ *
+ * @param array $contact
+ * @param array $creation_dates
+ * @return void
+ */
+ private static function adjustPollFrequency(array $contact, array $creation_dates)
+ {
+ if ($contact['network'] != Protocol::FEED) {
+ Logger::info('Contact is no feed, skip.', ['id' => $contact['id'], 'uid' => $contact['uid'], 'url' => $contact['url'], 'network' => $contact['network']]);
+ return;
+ }
+
+ if (!empty($creation_dates)) {
+ // Count the post frequency and the earliest and latest post date
+ $frequency = [];
+ $oldest = time();
+ $newest = 0;
+ $oldest_date = $newest_date = '';
+
+ foreach ($creation_dates as $date) {
+ $timestamp = strtotime($date);
+ $day = intdiv($timestamp, 86400);
+ $hour = $timestamp % 86400;
+
+ // Only have a look at values from the last seven days
+ if (((time() / 86400) - $day) < 7) {
+ if (empty($frequency[$day])) {
+ $frequency[$day] = ['count' => 1, 'low' => $hour, 'high' => $hour];
+ } else {
+ ++$frequency[$day]['count'];
+ if ($frequency[$day]['low'] > $hour) {
+ $frequency[$day]['low'] = $hour;
+ }
+ if ($frequency[$day]['high'] < $hour) {
+ $frequency[$day]['high'] = $hour;
+ }
+ }
+ }
+ if ($oldest > $day) {
+ $oldest = $day;
+ $oldest_date = $date;
+ }
+
+ if ($newest < $day) {
+ $newest = $day;
+ $newest_date = $date;
+ }
+ }
+
+ if (count($creation_dates) == 1) {
+ Logger::info('Feed had posted a single time, switching to daily polling', ['newest' => $newest_date, 'id' => $contact['id'], 'uid' => $contact['uid'], 'url' => $contact['url']]);
+ $priority = 8; // Poll once a day
+ }
+
+ if (empty($priority) && (((time() / 86400) - $newest) > 730)) {
+ Logger::info('Feed had not posted for two years, switching to monthly polling', ['newest' => $newest_date, 'id' => $contact['id'], 'uid' => $contact['uid'], 'url' => $contact['url']]);
+ $priority = 10; // Poll every month
+ }
+
+ if (empty($priority) && (((time() / 86400) - $newest) > 365)) {
+ Logger::info('Feed had not posted for a year, switching to weekly polling', ['newest' => $newest_date, 'id' => $contact['id'], 'uid' => $contact['uid'], 'url' => $contact['url']]);
+ $priority = 9; // Poll every week
+ }
+
+ if (empty($priority) && empty($frequency)) {
+ Logger::info('Feed had not posted for at least a week, switching to daily polling', ['newest' => $newest_date, 'id' => $contact['id'], 'uid' => $contact['uid'], 'url' => $contact['url']]);
+ $priority = 8; // Poll once a day
+ }
+
+ if (empty($priority)) {
+ // Calculate the highest "posts per day" value
+ $max = 0;
+ foreach ($frequency as $entry) {
+ if (($entry['count'] == 1) || ($entry['high'] == $entry['low'])) {
+ continue;
+ }
+
+ // We take the earliest and latest post day and interpolate the number of post per day
+ // that would had been created with this post frequency
+
+ // Assume at least four hours between oldest and newest post per day - should be okay for news outlets
+ $duration = max($entry['high'] - $entry['low'], 14400);
+ $ppd = (86400 / $duration) * $entry['count'];
+ if ($ppd > $max) {
+ $max = $ppd;
+ }
+ }
+ if ($max > 48) {
+ $priority = 1; // Poll every quarter hour
+ } elseif ($max > 24) {
+ $priority = 2; // Poll half an hour
+ } elseif ($max > 12) {
+ $priority = 3; // Poll hourly
+ } elseif ($max > 8) {
+ $priority = 4; // Poll every two hours
+ } elseif ($max > 4) {
+ $priority = 5; // Poll every three hours
+ } elseif ($max > 2) {
+ $priority = 6; // Poll every six hours
+ } else {
+ $priority = 7; // Poll twice a day
+ }
+ Logger::info('Calculated priority by the posts per day', ['priority' => $priority, 'max' => round($max, 2), 'id' => $contact['id'], 'uid' => $contact['uid'], 'url' => $contact['url']]);
+ }
+ } else {
+ Logger::info('No posts, switching to daily polling', ['id' => $contact['id'], 'uid' => $contact['uid'], 'url' => $contact['url']]);
+ $priority = 8; // Poll once a day
+ }
+
+ if ($contact['rating'] != $priority) {
+ Logger::notice('Adjusting priority', ['old' => $contact['rating'], 'new' => $priority, 'id' => $contact['id'], 'uid' => $contact['uid'], 'url' => $contact['url']]);
+ Contact::update(['rating' => $priority], ['id' => $contact['id']]);
+ }
+ }
+
+ /**
+ * Get the poll interval for the given contact array
+ *
+ * @param array $contact
+ * @return int Poll interval in minutes
+ */
+ public static function getPollInterval(array $contact)
+ {
+ if (in_array($contact['network'], [Protocol::MAIL, Protocol::FEED])) {
+ $ratings = [0, 3, 7, 8, 9, 10];
+ if (DI::config()->get('system', 'adjust_poll_frequency') && ($contact['network'] == Protocol::FEED)) {
+ $rating = $contact['rating'];
+ } elseif (array_key_exists($contact['priority'], $ratings)) {
+ $rating = $ratings[$contact['priority']];
+ } else {
+ $rating = -1;
+ }
+ } else {
+ // Check once a week per default for all other networks
+ $rating = 9;
+ }
+
+ // Friendica and OStatus are checked once a day
+ if (in_array($contact['network'], [Protocol::DFRN, Protocol::OSTATUS])) {
+ $rating = 8;
+ }
+
+ // Check archived contacts or contacts with unsupported protocols once a month
+ if ($contact['archive'] || in_array($contact['network'], [Protocol::ZOT, Protocol::PHANTOM])) {
+ $rating = 10;
+ }
+
+ if ($rating < 0) {
+ return 0;
+ }
+ /*
+ * Based on $contact['priority'], should we poll this site now? Or later?
+ */
+
+ $min_poll_interval = max(1, DI::config()->get('system', 'min_poll_interval'));
+
+ $poll_intervals = [$min_poll_interval, 15, 30, 60, 120, 180, 360, 720 ,1440, 10080, 43200];
+
+ //$poll_intervals = [$min_poll_interval . ' minute', '15 minute', '30 minute',
+ // '1 hour', '2 hour', '3 hour', '6 hour', '12 hour' ,'1 day', '1 week', '1 month'];
+
+ return $poll_intervals[$rating];
+ }
+
/**
* Convert a tag array to a tag string
*
if ($tagstr != "") {
$tagstr .= ", ";
}
-
+
$tagstr .= "#[url=" . DI::baseUrl() . "/search?tag=" . urlencode($tag) . "]" . $tag . "[/url]";
}
}
return ($title == $body);
}
+
+ /**
+ * Creates the Atom feed for a given nickname
+ *
+ * Supported filters:
+ * - activity (default): all the public posts
+ * - posts: all the public top-level posts
+ * - comments: all the public replies
+ *
+ * Updates the provided last_update parameter if the result comes from the
+ * cache or it is empty
+ *
+ * @param string $owner_nick Nickname of the feed owner
+ * @param string $last_update Date of the last update
+ * @param integer $max_items Number of maximum items to fetch
+ * @param string $filter Feed items filter (activity, posts or comments)
+ * @param boolean $nocache Wether to bypass caching
+ *
+ * @return string Atom feed
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+ * @throws \ImagickException
+ */
+ public static function atom($owner_nick, $last_update, $max_items = 300, $filter = 'activity', $nocache = false)
+ {
+ $stamp = microtime(true);
+
+ $owner = User::getOwnerDataByNick($owner_nick);
+ if (!$owner) {
+ return;
+ }
+
+ $cachekey = "feed:feed:" . $owner_nick . ":" . $filter . ":" . $last_update;
+
+ $previous_created = $last_update;
+
+ // Don't cache when the last item was posted less then 15 minutes ago (Cache duration)
+ if ((time() - strtotime($owner['last-item'])) < 15*60) {
+ $result = DI::cache()->get($cachekey);
+ if (!$nocache && !is_null($result)) {
+ Logger::info('Cached feed duration', ['seconds' => number_format(microtime(true) - $stamp, 3), 'nick' => $owner_nick, 'filter' => $filter, 'created' => $previous_created]);
+ return $result['feed'];
+ }
+ }
+
+ $check_date = empty($last_update) ? '' : DateTimeFormat::utc($last_update);
+ $authorid = Contact::getIdForURL($owner["url"]);
+
+ $condition = ["`uid` = ? AND `received` > ? AND NOT `deleted` AND `gravity` IN (?, ?)
+ AND `private` != ? AND `visible` AND `wall` AND `parent-network` IN (?, ?, ?, ?)",
+ $owner["uid"], $check_date, GRAVITY_PARENT, GRAVITY_COMMENT,
+ Item::PRIVATE, Protocol::ACTIVITYPUB,
+ Protocol::OSTATUS, Protocol::DFRN, Protocol::DIASPORA];
+
+ if ($filter === 'comments') {
+ $condition[0] .= " AND `gravity` = ? ";
+ $condition[] = GRAVITY_COMMENT;
+ }
+
+ if ($owner['account-type'] != User::ACCOUNT_TYPE_COMMUNITY) {
+ $condition[0] .= " AND `contact-id` = ? AND `author-id` = ?";
+ $condition[] = $owner["id"];
+ $condition[] = $authorid;
+ }
+
+ $params = ['order' => ['received' => true], 'limit' => $max_items];
+
+ if ($filter === 'posts') {
+ $ret = Post::selectThread(Item::DELIVER_FIELDLIST, $condition, $params);
+ } else {
+ $ret = Post::select(Item::DELIVER_FIELDLIST, $condition, $params);
+ }
+
+ $items = Post::toArray($ret);
+
+ $doc = new DOMDocument('1.0', 'utf-8');
+ $doc->formatOutput = true;
+
+ $root = self::addHeader($doc, $owner, $filter);
+
+ foreach ($items as $item) {
+ $entry = self::entry($doc, $item, $owner);
+ $root->appendChild($entry);
+
+ if ($last_update < $item['created']) {
+ $last_update = $item['created'];
+ }
+ }
+
+ $feeddata = trim($doc->saveXML());
+
+ $msg = ['feed' => $feeddata, 'last_update' => $last_update];
+ DI::cache()->set($cachekey, $msg, Duration::QUARTER_HOUR);
+
+ Logger::info('Feed duration', ['seconds' => number_format(microtime(true) - $stamp, 3), 'nick' => $owner_nick, 'filter' => $filter, 'created' => $previous_created]);
+
+ return $feeddata;
+ }
+
+ /**
+ * Adds the header elements to the XML document
+ *
+ * @param DOMDocument $doc XML document
+ * @param array $owner Contact data of the poster
+ * @param string $filter The related feed filter (activity, posts or comments)
+ *
+ * @return object header root element
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+ */
+ private static function addHeader(DOMDocument $doc, array $owner, $filter)
+ {
+ $root = $doc->createElementNS(ActivityNamespace::ATOM1, 'feed');
+ $doc->appendChild($root);
+
+ $title = '';
+ $selfUri = '/feed/' . $owner["nick"] . '/';
+ switch ($filter) {
+ case 'activity':
+ $title = DI::l10n()->t('%s\'s timeline', $owner['name']);
+ $selfUri .= $filter;
+ break;
+ case 'posts':
+ $title = DI::l10n()->t('%s\'s posts', $owner['name']);
+ break;
+ case 'comments':
+ $title = DI::l10n()->t('%s\'s comments', $owner['name']);
+ $selfUri .= $filter;
+ break;
+ }
+
+ $attributes = ["uri" => "https://friendi.ca", "version" => FRIENDICA_VERSION . "-" . DB_UPDATE_VERSION];
+ XML::addElement($doc, $root, "generator", FRIENDICA_PLATFORM, $attributes);
+ XML::addElement($doc, $root, "id", DI::baseUrl() . "/profile/" . $owner["nick"]);
+ XML::addElement($doc, $root, "title", $title);
+ XML::addElement($doc, $root, "subtitle", sprintf("Updates from %s on %s", $owner["name"], DI::config()->get('config', 'sitename')));
+ XML::addElement($doc, $root, "logo", User::getAvatarUrlForId($owner['uid'], Proxy::SIZE_SMALL));
+ XML::addElement($doc, $root, "updated", DateTimeFormat::utcNow(DateTimeFormat::ATOM));
+
+ $author = self::addAuthor($doc, $owner);
+ $root->appendChild($author);
+
+ $attributes = ["href" => $owner["url"], "rel" => "alternate", "type" => "text/html"];
+ XML::addElement($doc, $root, "link", "", $attributes);
+
+ OStatus::hublinks($doc, $root, $owner["nick"]);
+
+ $attributes = ["href" => DI::baseUrl() . $selfUri, "rel" => "self", "type" => "application/atom+xml"];
+ XML::addElement($doc, $root, "link", "", $attributes);
+
+ return $root;
+ }
+
+ /**
+ * Adds the author element to the XML document
+ *
+ * @param DOMDocument $doc XML document
+ * @param array $owner Contact data of the poster
+ *
+ * @return \DOMElement author element
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+ */
+ private static function addAuthor(DOMDocument $doc, array $owner)
+ {
+ $author = $doc->createElement("author");
+ XML::addElement($doc, $author, "uri", $owner["url"]);
+ XML::addElement($doc, $author, "name", $owner["nick"]);
+ XML::addElement($doc, $author, "email", $owner["addr"]);
+
+ return $author;
+ }
+
+ /**
+ * Adds an entry element to the XML document
+ *
+ * @param DOMDocument $doc XML document
+ * @param array $item Data of the item that is to be posted
+ * @param array $owner Contact data of the poster
+ * @param bool $toplevel optional default false
+ *
+ * @return \DOMElement Entry element
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+ * @throws \ImagickException
+ */
+ private static function entry(DOMDocument $doc, array $item, array $owner)
+ {
+ $xml = null;
+
+ $repeated_guid = OStatus::getResharedGuid($item);
+ if ($repeated_guid != "") {
+ $xml = self::reshareEntry($doc, $item, $owner, $repeated_guid);
+ }
+
+ if ($xml) {
+ return $xml;
+ }
+
+ return self::noteEntry($doc, $item, $owner);
+ }
+
+ /**
+ * Adds an entry element with reshared content
+ *
+ * @param DOMDocument $doc XML document
+ * @param array $item Data of the item that is to be posted
+ * @param array $owner Contact data of the poster
+ * @param string $repeated_guid guid
+ * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
+ *
+ * @return bool Entry element
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+ * @throws \ImagickException
+ */
+ private static function reshareEntry(DOMDocument $doc, array $item, array $owner, $repeated_guid)
+ {
+ if (($item['gravity'] != GRAVITY_PARENT) && (Strings::normaliseLink($item["author-link"]) != Strings::normaliseLink($owner["url"]))) {
+ Logger::info('Feed entry author does not match feed owner', ['owner' => $owner["url"], 'author' => $item["author-link"]]);
+ }
+
+ $entry = OStatus::entryHeader($doc, $owner, $item, false);
+
+ $condition = ['uid' => $owner["uid"], 'guid' => $repeated_guid, 'private' => [Item::PUBLIC, Item::UNLISTED],
+ 'network' => Protocol::FEDERATED];
+ $repeated_item = Post::selectFirst(Item::DELIVER_FIELDLIST, $condition);
+ if (!DBA::isResult($repeated_item)) {
+ return false;
+ }
+
+ self::entryContent($doc, $entry, $item, self::getTitle($repeated_item), Activity::SHARE, false);
+
+ self::entryFooter($doc, $entry, $item, $owner);
+
+ return $entry;
+ }
+
+ /**
+ * Adds a regular entry element
+ *
+ * @param DOMDocument $doc XML document
+ * @param array $item Data of the item that is to be posted
+ * @param array $owner Contact data of the poster
+ * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
+ *
+ * @return \DOMElement Entry element
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+ * @throws \ImagickException
+ */
+ private static function noteEntry(DOMDocument $doc, array $item, array $owner)
+ {
+ if (($item['gravity'] != GRAVITY_PARENT) && (Strings::normaliseLink($item["author-link"]) != Strings::normaliseLink($owner["url"]))) {
+ Logger::info('Feed entry author does not match feed owner', ['owner' => $owner["url"], 'author' => $item["author-link"]]);
+ }
+
+ $entry = OStatus::entryHeader($doc, $owner, $item, false);
+
+ self::entryContent($doc, $entry, $item, self::getTitle($item), '', true);
+
+ self::entryFooter($doc, $entry, $item, $owner);
+
+ return $entry;
+ }
+
+ /**
+ * Adds elements to the XML document
+ *
+ * @param DOMDocument $doc XML document
+ * @param \DOMElement $entry Entry element where the content is added
+ * @param array $item Data of the item that is to be posted
+ * @param array $owner Contact data of the poster
+ * @param string $title Title for the post
+ * @param string $verb The activity verb
+ * @param bool $complete Add the "status_net" element?
+ * @param bool $feed_mode Behave like a regular feed for users if true
+ * @return void
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+ */
+ private static function entryContent(DOMDocument $doc, \DOMElement $entry, array $item, $title, $verb = "", $complete = true)
+ {
+ if ($verb == "") {
+ $verb = OStatus::constructVerb($item);
+ }
+
+ XML::addElement($doc, $entry, "id", $item["uri"]);
+ XML::addElement($doc, $entry, "title", html_entity_decode($title, ENT_QUOTES, 'UTF-8'));
+
+ $body = OStatus::formatPicturePost($item['body'], $item['uri-id']);
+
+ $body = BBCode::convertForUriId($item['uri-id'], $body, BBCode::ACTIVITYPUB);
+
+ XML::addElement($doc, $entry, "content", $body, ["type" => "html"]);
+
+ XML::addElement($doc, $entry, "link", "", ["rel" => "alternate", "type" => "text/html",
+ "href" => DI::baseUrl()."/display/".$item["guid"]]
+ );
+
+ XML::addElement($doc, $entry, "published", DateTimeFormat::utc($item["created"]."+00:00", DateTimeFormat::ATOM));
+ XML::addElement($doc, $entry, "updated", DateTimeFormat::utc($item["edited"]."+00:00", DateTimeFormat::ATOM));
+ }
+
+ /**
+ * Adds the elements at the foot of an entry to the XML document
+ *
+ * @param DOMDocument $doc XML document
+ * @param object $entry The entry element where the elements are added
+ * @param array $item Data of the item that is to be posted
+ * @param array $owner Contact data of the poster
+ * @param bool $complete default true
+ * @return void
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+ */
+ private static function entryFooter(DOMDocument $doc, $entry, array $item, array $owner)
+ {
+ $mentioned = [];
+
+ if ($item['gravity'] != GRAVITY_PARENT) {
+ $parent = Post::selectFirst(['guid', 'author-link', 'owner-link'], ['id' => $item['parent']]);
+
+ $thrparent = Post::selectFirst(['guid', 'author-link', 'owner-link', 'plink'], ['uid' => $owner['uid'], 'uri' => $item['thr-parent']]);
+
+ if (DBA::isResult($thrparent)) {
+ $mentioned[$thrparent['author-link']] = $thrparent['author-link'];
+ $mentioned[$thrparent['owner-link']] = $thrparent['owner-link'];
+ $parent_plink = $thrparent['plink'];
+ } elseif (DBA::isResult($parent)) {
+ $mentioned[$parent['author-link']] = $parent['author-link'];
+ $mentioned[$parent['owner-link']] = $parent['owner-link'];
+ $parent_plink = DI::baseUrl() . '/display/' . $parent['guid'];
+ } else {
+ DI::logger()->notice('Missing parent and thr-parent for child item', ['item' => $item]);
+ }
+
+ if (isset($parent_plink)) {
+ $attributes = [
+ 'ref' => $item['thr-parent'],
+ 'href' => $parent_plink];
+ XML::addElement($doc, $entry, 'thr:in-reply-to', '', $attributes);
+
+ $attributes = [
+ 'rel' => 'related',
+ 'href' => $parent_plink];
+ XML::addElement($doc, $entry, 'link', '', $attributes);
+ }
+ }
+
+ // uri-id isn't present for follow entry pseudo-items
+ $tags = Tag::getByURIId($item['uri-id'] ?? 0);
+ foreach ($tags as $tag) {
+ $mentioned[$tag['url']] = $tag['url'];
+ }
+
+ foreach ($tags as $tag) {
+ if ($tag['type'] == Tag::HASHTAG) {
+ XML::addElement($doc, $entry, 'category', '', ['term' => $tag['name']]);
+ }
+ }
+
+ OStatus::getAttachment($doc, $entry, $item);
+ }
+
+ /**
+ * Fetch or create title for feed entry
+ *
+ * @param array $item
+ * @return string title
+ */
+ private static function getTitle(array $item)
+ {
+ if ($item['title'] != '') {
+ return BBCode::convertForUriId($item['uri-id'], $item['title'], BBCode::ACTIVITYPUB);
+ }
+
+ // Fetch information about the post
+ $siteinfo = BBCode::getAttachedData($item["body"]);
+ if (isset($siteinfo["title"])) {
+ return $siteinfo["title"];
+ }
+
+ // If no bookmark is found then take the first line
+ // Remove the share element before fetching the first line
+ $title = trim(preg_replace("/\[share.*?\](.*?)\[\/share\]/ism","\n$1\n",$item['body']));
+
+ $title = BBCode::toPlaintext($title)."\n";
+ $pos = strpos($title, "\n");
+ $trailer = "";
+ if (($pos == 0) || ($pos > 100)) {
+ $pos = 100;
+ $trailer = "...";
+ }
+
+ return substr($title, 0, $pos) . $trailer;
+ }
}
projects / friendica.git / blobdiff