From: Michael <heluecht@pirati.ca>
Date: Sat, 5 Oct 2019 23:30:47 +0000 (+0000)
Subject: Replace obsolete functionality in "PortableContact"
X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=8238081d87f98e52c29b24f2848123844c9c2f8c;p=friendica.git

Replace obsolete functionality in "PortableContact"
---

diff --git a/src/Model/GContact.php b/src/Model/GContact.php
index 23415d1078..6e7cdb72f0 100644
--- a/src/Model/GContact.php
+++ b/src/Model/GContact.php
@@ -6,6 +6,8 @@
  */
 namespace Friendica\Model;
 
+use DOMDocument;
+use DOMXPath;
 use Exception;
 use Friendica\Core\Config;
 use Friendica\Core\Logger;
@@ -14,6 +16,7 @@ use Friendica\Core\System;
 use Friendica\Core\Worker;
 use Friendica\Database\DBA;
 use Friendica\Network\Probe;
+use Friendica\Protocol\ActivityPub;
 use Friendica\Protocol\PortableContact;
 use Friendica\Util\DateTimeFormat;
 use Friendica\Util\Network;
@@ -190,7 +193,7 @@ class GContact
 		}
 
 		if ((!isset($gcontact['network']) || !isset($gcontact['name']) || !isset($gcontact['addr']) || !isset($gcontact['photo']) || !isset($gcontact['server_url']) || $alternate)
-			&& PortableContact::reachable($gcontact['url'], $gcontact['server_url'], $gcontact['network'], false)
+			&& GServer::reachable($gcontact['url'], $gcontact['server_url'], $gcontact['network'], false)
 		) {
 			$data = Probe::uri($gcontact['url']);
 
@@ -859,7 +862,170 @@ class GContact
 
 		return $gcontact_id;
 	}
+	/**
+	 * Set the last date that the contact had posted something
+	 *
+	 * @param string $data  Probing result
+	 * @param bool   $force force updating
+	 */
+	public static function setLastUpdate(array $data, bool $force = false)
+	{
+		// Fetch the global contact
+		$gcontact = DBA::selectFirst('gcontact', ['created', 'updated', 'last_contact', 'last_failure'],
+			['nurl' => Strings::normaliseLink($data['url'])]);
+		if (!DBA::isResult($gcontact)) {
+			return;
+		}
+
+		if (!$force && !PortableContact::updateNeeded($gcontact['created'], $gcontact['updated'], $gcontact['last_failure'], $gcontact['last_contact'])) {
+			Logger::info("Don't update profile", ['url' => $data['url'], 'updated' => $gcontact['updated']]);
+			return;
+		}
+
+		if (self::updateFromNoScrape($data)) {
+			return;
+		}
+
+		// When the profile doesn't have got a feed, then we exit here
+		if (empty($data['poll'])) {
+			return;
+		}
+
+		if ($data['network'] == Protocol::ACTIVITYPUB) {
+			self::updateFromOutbox($data['poll'], $data);
+		} else {
+			self::updateFromFeed($data);
+		}
+	}
 
+	/**
+	 * Update a global contact via the "noscrape" endpoint
+	 *
+	 * @param string $data Probing result
+	 *
+	 * @return bool 'true' if update was successful or the server was unreachable
+	 */
+	private static function updateFromNoScrape(array $data)
+	{
+		// Check the 'noscrape' endpoint when it is a Friendica server
+		$gserver = DBA::selectFirst('gserver', ['noscrape'], ["`nurl` = ? AND `noscrape` != ''",
+		Strings::normaliseLink($data['baseurl'])]);
+		if (!DBA::isResult($gserver)) {
+			return false;
+		}
+
+		$curlResult = Network::curl($gserver['noscrape'] . '/' . $data['nick']);
+
+		if ($curlResult->isSuccess() && !empty($curlResult->getBody())) {
+			$noscrape = json_decode($curlResult->getBody(), true);
+			if (!empty($noscrape)) {
+				$noscrape['updated'] = DateTimeFormat::utc($noscrape['updated'], DateTimeFormat::MYSQL);
+				$fields = ['last_contact' => DateTimeFormat::utcNow(), 'updated' => $noscrape['updated']];
+				DBA::update('gcontact', $fields, ['nurl' => Strings::normaliseLink($data['url'])]);
+				return true;
+			}
+		} elseif ($curlResult->isTimeout()) {
+			// On a timeout return the existing value, but mark the contact as failure
+			$fields = ['last_failure' => DateTimeFormat::utcNow()];
+			DBA::update('gcontact', $fields, ['nurl' => Strings::normaliseLink($data['url'])]);
+			return true;
+		}
+		return false;
+	}
+
+	/**
+	 * Update a global contact via an ActivityPub Outbox
+	 *
+	 * @param string $data Probing result
+	 */
+	private static function updateFromOutbox(string $feed, array $data)
+	{
+		$outbox = ActivityPub::fetchContent($feed);
+		if (empty($outbox)) {
+			return;
+		}
+
+		if (!empty($outbox['orderedItems'])) {
+			$items = $outbox['orderedItems'];
+		} elseif (!empty($outbox['first']['orderedItems'])) {
+			$items = $outbox['first']['orderedItems'];
+		} elseif (!empty($outbox['first'])) {
+			self::updateFromOutbox($outbox['first'], $data);
+			return;
+		} else {
+			$items = [];
+		}
+
+		$last_updated = '';
+
+		foreach ($items as $activity) {
+			if ($last_updated < $activity['published']) {
+				$last_updated = $activity['published'];
+			}
+		}
+
+		if (empty($last_updated)) {
+			return;
+		}
+
+		$fields = ['last_contact' => DateTimeFormat::utcNow(), 'updated' => $last_updated];
+		DBA::update('gcontact', $fields, ['nurl' => Strings::normaliseLink($data['url'])]);
+	}
+
+	/**
+	 * Update a global contact via an XML feed
+	 *
+	 * @param string $data Probing result
+	 */
+	private static function updateFromFeed(array $data)
+	{
+		// Search for the newest entry in the feed
+		$curlResult = Network::curl($data['poll']);
+		if (!$curlResult->isSuccess()) {
+			$fields = ['last_failure' => DateTimeFormat::utcNow()];
+			DBA::update('gcontact', $fields, ['nurl' => Strings::normaliseLink($profile)]);
+
+			Logger::info("Profile wasn't reachable (no feed)", ['url' => $data['url']]);
+			return;
+		}
+
+		$doc = new DOMDocument();
+		@$doc->loadXML($curlResult->getBody());
+
+		$xpath = new DOMXPath($doc);
+		$xpath->registerNamespace('atom', 'http://www.w3.org/2005/Atom');
+
+		$entries = $xpath->query('/atom:feed/atom:entry');
+
+		$last_updated = '';
+
+		foreach ($entries as $entry) {
+			$published_item = $xpath->query('atom:published/text()', $entry)->item(0);
+			$updated_item   = $xpath->query('atom:updated/text()'  , $entry)->item(0);
+			$published      = !empty($published_item->nodeValue) ? DateTimeFormat::utc($published_item->nodeValue) : null;
+			$updated        = !empty($updated_item->nodeValue) ? DateTimeFormat::utc($updated_item->nodeValue) : null;
+
+			if (empty($published) || empty($updated)) {
+				Logger::notice('Invalid entry for XPath.', ['entry' => $entry, 'url' => $data['url']]);
+				continue;
+			}
+
+			if ($last_updated < $published) {
+				$last_updated = $published;
+			}
+
+			if ($last_updated < $updated) {
+				$last_updated = $updated;
+			}
+		}
+
+		if (empty($last_updated)) {
+			return;
+		}
+
+		$fields = ['last_contact' => DateTimeFormat::utcNow(), 'updated' => $last_updated];
+		DBA::update('gcontact', $fields, ['nurl' => Strings::normaliseLink($data['url'])]);
+	}
 	/**
 	 * @brief Updates the gcontact entry from a given public contact id
 	 *
@@ -976,7 +1142,9 @@ class GContact
 	 *
 	 * @param string  $url   profile link
 	 * @param boolean $force Optional forcing of network probing (otherwise we use the cached data)
-	 * @return void
+	 *
+	 * @return boolean 'true' when contact had been updated
+	 *
 	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 	 * @throws \ImagickException
 	 */
@@ -985,13 +1153,20 @@ class GContact
 		$data = Probe::uri($url, $force);
 
 		if (in_array($data["network"], [Protocol::PHANTOM])) {
-			Logger::log("Invalid network for contact url ".$data["url"]." - Called by: ".System::callstack(), Logger::DEBUG);
-			return;
+			$fields = ['last_failure' => DateTimeFormat::utcNow()];
+			DBA::update('gcontact', $fields, ['nurl' => Strings::normaliseLink($url)]);
+			Logger::info('Invalid network for contact', ['url' => $data['url'], 'callstack' => System::callstack()]);
+			return false;
 		}
 
 		$data["server_url"] = $data["baseurl"];
 
 		self::update($data);
+
+		// Set the date of the latest post
+		self::setLastUpdate($data, $force);
+
+		return true;
 	}
 
 	/**
diff --git a/src/Model/GServer.php b/src/Model/GServer.php
index 77d5563575..28c0007b91 100644
--- a/src/Model/GServer.php
+++ b/src/Model/GServer.php
@@ -26,6 +26,29 @@ use Friendica\Network\Probe;
  */
 class GServer
 {
+	/**
+	 * Checks if the given server is reachable
+	 *
+	 * @param string  $profile URL of the given profile
+	 * @param string  $server  URL of the given server (If empty, taken from profile)
+	 * @param string  $network Network value that is used, when detection failed
+	 * @param boolean $force   Force an update.
+	 *
+	 * @return boolean 'true' if server seems vital
+	 */
+	public static function reachable(string $profile, string $server = '', string $network = '', bool $force = false)
+	{
+		if ($server == '') {
+			$server = Contact::getBasepath($profile);
+		}
+
+		if ($server == '') {
+			return true;
+		}
+
+		return self::check($server, $network, $force);
+	}
+
 	/**
 	 * Checks the state of the given server.
 	 *
@@ -661,21 +684,20 @@ class GServer
 	private static function detectNetworkViaContacts(string $url, array $serverdata)
 	{
 		$contacts = '';
-		$fields = ['nurl', 'url'];
 
-		$gcontacts = DBA::select('gcontact', $fields, ['server_url' => [$url, $serverdata['nurl']]]);
+		$gcontacts = DBA::select('gcontact', ['url', 'nurl'], ['server_url' => [$url, $serverdata['nurl']]]);
 		while ($gcontact = DBA::fetch($gcontacts)) {
 			$contacts[$gcontact['nurl']] = $gcontact['url'];
 		}
 		DBA::close($gcontacts);
 
-		$apcontacts = DBA::select('apcontact', $fields, ['baseurl' => [$url, $serverdata['nurl']]]);
+		$apcontacts = DBA::select('apcontact', ['url'], ['baseurl' => [$url, $serverdata['nurl']]]);
 		while ($gcontact = DBA::fetch($gcontacts)) {
-			$contacts[$apcontact['nurl']] = $apcontact['url'];
+			$contacts[Strings::normaliseLink($apcontact['url'])] = $apcontact['url'];
 		}
 		DBA::close($apcontacts);
 
-		$pcontacts = DBA::select('contact', $fields, ['uid' => 0, 'baseurl' => [$url, $serverdata['nurl']]]);
+		$pcontacts = DBA::select('contact', ['url', 'nurl'], ['uid' => 0, 'baseurl' => [$url, $serverdata['nurl']]]);
 		while ($gcontact = DBA::fetch($gcontacts)) {
 			$contacts[$pcontact['nurl']] = $pcontact['url'];
 		}
diff --git a/src/Protocol/PortableContact.php b/src/Protocol/PortableContact.php
index 235c17ff59..228a96762c 100644
--- a/src/Protocol/PortableContact.php
+++ b/src/Protocol/PortableContact.php
@@ -214,271 +214,11 @@ class PortableContact
 		DBA::delete('glink', $condition);
 	}
 
-	public static function reachable($profile, $server = "", $network = "", $force = false)
-	{
-		if ($server == "") {
-			$server = Contact::getBasepath($profile);
-		}
-
-		if ($server == "") {
-			return true;
-		}
-
-		return GServer::check($server, $network, $force);
-	}
-
 	public static function alternateOStatusUrl($url)
 	{
 		return(preg_match("=https?://.+/user/\d+=ism", $url, $matches));
 	}
 
-	public static function lastUpdated($profile, $force = false)
-	{
-		$gcontacts = q(
-			"SELECT * FROM `gcontact` WHERE `nurl` = '%s'",
-			DBA::escape(Strings::normaliseLink($profile))
-		);
-
-		if (!DBA::isResult($gcontacts)) {
-			return false;
-		}
-
-		$contact = ["url" => $profile];
-
-		if ($gcontacts[0]["created"] <= DBA::NULL_DATETIME) {
-			$contact['created'] = DateTimeFormat::utcNow();
-		}
-
-		$server_url = '';
-		if ($force) {
-			$server_url = Strings::normaliseLink(Contact::getBasepath($profile));
-		}
-
-		if (($server_url == '') && ($gcontacts[0]["server_url"] != "")) {
-			$server_url = $gcontacts[0]["server_url"];
-		}
-
-		if (!$force && (($server_url == '') || ($gcontacts[0]["server_url"] == $gcontacts[0]["nurl"]))) {
-			$server_url = Strings::normaliseLink(Contact::getBasepath($profile));
-		}
-
-		if (!in_array($gcontacts[0]["network"], [Protocol::DFRN, Protocol::DIASPORA, Protocol::FEED, Protocol::OSTATUS, ""])) {
-			Logger::log("Profile ".$profile.": Network type ".$gcontacts[0]["network"]." can't be checked", Logger::DEBUG);
-			return false;
-		}
-
-		if ($server_url != "") {
-			if (!GServer::check($server_url, $gcontacts[0]["network"], $force)) {
-				if ($force) {
-					$fields = ['last_failure' => DateTimeFormat::utcNow()];
-					DBA::update('gcontact', $fields, ['nurl' => Strings::normaliseLink($profile)]);
-				}
-
-				Logger::log("Profile ".$profile.": Server ".$server_url." wasn't reachable.", Logger::DEBUG);
-				return false;
-			}
-			$contact['server_url'] = $server_url;
-		}
-
-		if (in_array($gcontacts[0]["network"], ["", Protocol::FEED])) {
-			$server = q(
-				"SELECT `network` FROM `gserver` WHERE `nurl` = '%s' AND `network` != ''",
-				DBA::escape(Strings::normaliseLink($server_url))
-			);
-
-			if ($server) {
-				$contact['network'] = $server[0]["network"];
-			} else {
-				return false;
-			}
-		}
-
-		// noscrape is really fast so we don't cache the call.
-		if (($server_url != "") && ($gcontacts[0]["nick"] != "")) {
-			//  Use noscrape if possible
-			$server = q("SELECT `noscrape`, `network` FROM `gserver` WHERE `nurl` = '%s' AND `noscrape` != ''", DBA::escape(Strings::normaliseLink($server_url)));
-
-			if ($server) {
-				$curlResult = Network::curl($server[0]["noscrape"]."/".$gcontacts[0]["nick"]);
-
-				if ($curlResult->isSuccess() && ($curlResult->getBody() != "")) {
-					$noscrape = json_decode($curlResult->getBody(), true);
-
-					if (is_array($noscrape)) {
-						$contact["network"] = $server[0]["network"];
-
-						if (isset($noscrape["fn"])) {
-							$contact["name"] = $noscrape["fn"];
-						}
-						if (isset($noscrape["comm"])) {
-							$contact["community"] = $noscrape["comm"];
-						}
-						if (isset($noscrape["tags"])) {
-							$keywords = implode(" ", $noscrape["tags"]);
-							if ($keywords != "") {
-								$contact["keywords"] = $keywords;
-							}
-						}
-
-						$location = Profile::formatLocation($noscrape);
-						if ($location) {
-							$contact["location"] = $location;
-						}
-						if (isset($noscrape["dfrn-notify"])) {
-							$contact["notify"] = $noscrape["dfrn-notify"];
-						}
-						// Remove all fields that are not present in the gcontact table
-						unset($noscrape["fn"]);
-						unset($noscrape["key"]);
-						unset($noscrape["homepage"]);
-						unset($noscrape["comm"]);
-						unset($noscrape["tags"]);
-						unset($noscrape["locality"]);
-						unset($noscrape["region"]);
-						unset($noscrape["country-name"]);
-						unset($noscrape["contacts"]);
-						unset($noscrape["dfrn-request"]);
-						unset($noscrape["dfrn-confirm"]);
-						unset($noscrape["dfrn-notify"]);
-						unset($noscrape["dfrn-poll"]);
-
-						// Set the date of the last contact
-						/// @todo By now the function "update_gcontact" doesn't work with this field
-						//$contact["last_contact"] = DateTimeFormat::utcNow();
-
-						$contact = array_merge($contact, $noscrape);
-
-						GContact::update($contact);
-
-						if (!empty($noscrape["updated"])) {
-							$fields = ['last_contact' => DateTimeFormat::utcNow()];
-							DBA::update('gcontact', $fields, ['nurl' => Strings::normaliseLink($profile)]);
-
-							Logger::log("Profile ".$profile." was last updated at ".$noscrape["updated"]." (noscrape)", Logger::DEBUG);
-
-							return $noscrape["updated"];
-						}
-					}
-				}
-			}
-		}
-
-		// If we only can poll the feed, then we only do this once a while
-		if (!$force && !self::updateNeeded($gcontacts[0]["created"], $gcontacts[0]["updated"], $gcontacts[0]["last_failure"], $gcontacts[0]["last_contact"])) {
-			Logger::log("Profile ".$profile." was last updated at ".$gcontacts[0]["updated"]." (cached)", Logger::DEBUG);
-
-			GContact::update($contact);
-			return $gcontacts[0]["updated"];
-		}
-
-		$data = Probe::uri($profile);
-
-		// Is the profile link the alternate OStatus link notation? (http://domain.tld/user/4711)
-		// Then check the other link and delete this one
-		if (($data["network"] == Protocol::OSTATUS) && self::alternateOStatusUrl($profile)
-			&& (Strings::normaliseLink($profile) == Strings::normaliseLink($data["alias"]))
-			&& (Strings::normaliseLink($profile) != Strings::normaliseLink($data["url"]))
-		) {
-			// Delete the old entry
-			DBA::delete('gcontact', ['nurl' => Strings::normaliseLink($profile)]);
-
-			$gcontact = array_merge($gcontacts[0], $data);
-
-			$gcontact["server_url"] = $data["baseurl"];
-
-			try {
-				$gcontact = GContact::sanitize($gcontact);
-				GContact::update($gcontact);
-
-				self::lastUpdated($data["url"], $force);
-			} catch (Exception $e) {
-				Logger::log($e->getMessage(), Logger::DEBUG);
-			}
-
-			Logger::log("Profile ".$profile." was deleted", Logger::DEBUG);
-			return false;
-		}
-
-		if (($data["poll"] == "") || (in_array($data["network"], [Protocol::FEED, Protocol::PHANTOM]))) {
-			$fields = ['last_failure' => DateTimeFormat::utcNow()];
-			DBA::update('gcontact', $fields, ['nurl' => Strings::normaliseLink($profile)]);
-
-			Logger::log("Profile ".$profile." wasn't reachable (profile)", Logger::DEBUG);
-			return false;
-		}
-
-		$contact = array_merge($contact, $data);
-
-		$contact["server_url"] = $data["baseurl"];
-
-		GContact::update($contact);
-
-		$curlResult = Network::curl($data["poll"]);
-
-		if (!$curlResult->isSuccess()) {
-			$fields = ['last_failure' => DateTimeFormat::utcNow()];
-			DBA::update('gcontact', $fields, ['nurl' => Strings::normaliseLink($profile)]);
-
-			Logger::log("Profile ".$profile." wasn't reachable (no feed)", Logger::DEBUG);
-			return false;
-		}
-
-		$doc = new DOMDocument();
-		/// @TODO Avoid error supression here
-		@$doc->loadXML($curlResult->getBody());
-
-		$xpath = new DOMXPath($doc);
-		$xpath->registerNamespace('atom', "http://www.w3.org/2005/Atom");
-
-		$entries = $xpath->query('/atom:feed/atom:entry');
-
-		$last_updated = "";
-
-		foreach ($entries as $entry) {
-			$published_item = $xpath->query('atom:published/text()', $entry)->item(0);
-			$updated_item   = $xpath->query('atom:updated/text()'  , $entry)->item(0);
-			$published      = isset($published_item->nodeValue) ? DateTimeFormat::utc($published_item->nodeValue) : null;
-			$updated        = isset($updated_item->nodeValue) ? DateTimeFormat::utc($updated_item->nodeValue) : null;
-
-			if (!isset($published) || !isset($updated)) {
-				Logger::notice('Invalid entry for XPath.', ['entry' => $entry, 'profile' => $profile]);
-				continue;
-			}
-
-			if ($last_updated < $published) {
-				$last_updated = $published;
-			}
-
-			if ($last_updated < $updated) {
-				$last_updated = $updated;
-			}
-		}
-
-		// Maybe there aren't any entries. Then check if it is a valid feed
-		if ($last_updated == "") {
-			if ($xpath->query('/atom:feed')->length > 0) {
-				$last_updated = DBA::NULL_DATETIME;
-			}
-		}
-
-		$fields = ['last_contact' => DateTimeFormat::utcNow()];
-
-		if (!empty($last_updated)) {
-			$fields['updated'] = $last_updated;
-		}
-
-		DBA::update('gcontact', $fields, ['nurl' => Strings::normaliseLink($profile)]);
-
-		if (($gcontacts[0]["generation"] == 0)) {
-			$fields = ['generation' => 9];
-			DBA::update('gcontact', $fields, ['nurl' => Strings::normaliseLink($profile)]);
-		}
-
-		Logger::log("Profile ".$profile." was last updated at ".$last_updated, Logger::DEBUG);
-
-		return $last_updated;
-	}
-
 	public static function updateNeeded($created, $updated, $last_failure, $last_contact)
 	{
 		$now = strtotime(DateTimeFormat::utcNow());
diff --git a/src/Worker/CronJobs.php b/src/Worker/CronJobs.php
index 1bc3ccd0a7..311ec59a53 100644
--- a/src/Worker/CronJobs.php
+++ b/src/Worker/CronJobs.php
@@ -16,11 +16,11 @@ use Friendica\Database\DBA;
 use Friendica\Database\PostUpdate;
 use Friendica\Model\Contact;
 use Friendica\Model\GContact;
+use Friendica\Model\GServer;
 use Friendica\Model\Nodeinfo;
 use Friendica\Model\Photo;
 use Friendica\Model\User;
 use Friendica\Network\Probe;
-use Friendica\Protocol\PortableContact;
 use Friendica\Util\Network;
 use Friendica\Util\Proxy as ProxyUtils;
 use Friendica\Util\Strings;
@@ -254,7 +254,7 @@ class CronJobs
 				return;
 			}
 
-			if (!PortableContact::reachable($contact["url"])) {
+			if (!GServer::reachable($contact["url"])) {
 				continue;
 			}
 
diff --git a/src/Worker/DiscoverPoCo.php b/src/Worker/DiscoverPoCo.php
index 5ce4c97d6f..d495b4c2a6 100644
--- a/src/Worker/DiscoverPoCo.php
+++ b/src/Worker/DiscoverPoCo.php
@@ -64,7 +64,7 @@ class DiscoverPoCo
 
 		if ($mode == 8) {
 			if ($param1 != "") {
-				PortableContact::lastUpdated($param1, true);
+				GContact::updateFromProbe($param1, true);
 			}
 		} elseif ($mode == 7) {
 			if (!empty($param4)) {
@@ -232,7 +232,7 @@ class DiscoverPoCo
 						continue;
 					}
 					// Update the contact
-					PortableContact::lastUpdated($jj->url);
+					GContact::updateFromProbe($jj->url);
 					continue;
 				}
 
diff --git a/src/Worker/GProbe.php b/src/Worker/GProbe.php
index 49638c7c94..3c71363470 100644
--- a/src/Worker/GProbe.php
+++ b/src/Worker/GProbe.php
@@ -57,7 +57,7 @@ class GProbe {
 		}
 		if (DBA::isResult($r)) {
 			// Check for accessibility and do a poco discovery
-			if (PortableContact::lastUpdated($r[0]['url'], true) && ($r[0]["network"] == Protocol::DFRN)) {
+			if (GContact::updateFromProbe($r[0]['url'], true) && ($r[0]["network"] == Protocol::DFRN)) {
 				PortableContact::loadWorker(0, 0, $r[0]['id'], str_replace('/profile/', '/poco/', $r[0]['url']));
 			}
 		}