215 lines
		
	
	
	
		
			6.3 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			215 lines
		
	
	
	
		
			6.3 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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require_once("boot.php");
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require_once("include/socgraph.php");
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function discover_poco_run(&$argv, &$argc){
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	global $a, $db;
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	if(is_null($a)) {
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		$a = new App;
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	}
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	if(is_null($db)) {
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	    @include(".htconfig.php");
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	require_once("include/dba.php");
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	    $db = new dba($db_host, $db_user, $db_pass, $db_data);
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	unset($db_host, $db_user, $db_pass, $db_data);
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	};
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	require_once('include/session.php');
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	require_once('include/datetime.php');
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	load_config('config');
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	load_config('system');
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	// Don't check this stuff if the function is called by the poller
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	if (App::callstack() != "poller_run")
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		if (App::maxload_reached())
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			return;
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	if(($argc > 2) && ($argv[1] == "dirsearch")) {
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		$search = urldecode($argv[2]);
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		$mode = 1;
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	} elseif(($argc == 2) && ($argv[1] == "checkcontact")) {
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		$mode = 2;
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	} elseif(($argc == 2) && ($argv[1] == "suggestions")) {
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		$mode = 3;
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	} elseif ($argc == 1) {
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		$search = "";
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		$mode = 0;
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	} else
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		die("Unknown or missing parameter ".$argv[1]."\n");
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	// Don't check this stuff if the function is called by the poller
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	if (App::callstack() != "poller_run")
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		if (App::is_already_running('discover_poco'.$mode.urlencode($search), 'include/discover_poco.php', 1140))
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			return;
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	$a->set_baseurl(get_config('system','url'));
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	load_hooks();
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	logger('start '.$search);
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	if ($mode==3)
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		update_suggestions();
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	elseif (($mode == 2) AND get_config('system','poco_completion'))
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		discover_users();
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	elseif (($mode == 1) AND ($search != "") and get_config('system','poco_local_search')) {
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		discover_directory($search);
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		gs_search_user($search);
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	} elseif (($mode == 0) AND ($search == "") and (get_config('system','poco_discovery') > 0)) {
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		// Query Friendica and Hubzilla servers for their users
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		poco_discover();
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		// Query GNU Social servers for their users ("statistics" addon has to be enabled on the GS server)
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		if (!get_config('system','ostatus_disabled'))
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			gs_discover();
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	}
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	logger('end '.$search);
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	return;
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}
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function discover_users() {
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	logger("Discover users", LOGGER_DEBUG);
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	$users = q("SELECT `url`, `created`, `updated`, `last_failure`, `last_contact`, `server_url` FROM `gcontact`
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			WHERE `last_contact` < UTC_TIMESTAMP - INTERVAL 1 MONTH AND
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				`last_failure` < UTC_TIMESTAMP - INTERVAL 1 MONTH AND
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				`network` IN ('%s', '%s', '%s', '%s', '') ORDER BY rand()",
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			dbesc(NETWORK_DFRN), dbesc(NETWORK_DIASPORA),
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			dbesc(NETWORK_OSTATUS), dbesc(NETWORK_FEED));
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	if (!$users)
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		return;
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	$checked = 0;
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	foreach ($users AS $user) {
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		$urlparts = parse_url($user["url"]);
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		if (!isset($urlparts["scheme"])) {
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			q("UPDATE `gcontact` SET `network` = '%s' WHERE `nurl` = '%s'",
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				dbesc(NETWORK_PHANTOM), dbesc(normalise_link($user["url"])));
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			continue;
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		 }
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		if (in_array($urlparts["host"], array("www.facebook.com", "facebook.com", "twitter.com",
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							"identi.ca", "alpha.app.net"))) {
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			$networks = array("www.facebook.com" => NETWORK_FACEBOOK,
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					"facebook.com" => NETWORK_FACEBOOK,
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					"twitter.com" => NETWORK_TWITTER,
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					"identi.ca" => NETWORK_PUMPIO,
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					"alpha.app.net" => NETWORK_APPNET);
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			q("UPDATE `gcontact` SET `network` = '%s' WHERE `nurl` = '%s'",
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				dbesc($networks[$urlparts["host"]]), dbesc(normalise_link($user["url"])));
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			continue;
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		}
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		if ($user["server_url"] != "")
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			$server_url = $user["server_url"];
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		else
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			$server_url = poco_detect_server($user["url"]);
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		if (($server_url == "") OR poco_check_server($server_url, $gcontacts[0]["network"])) {
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			logger('Check user '.$user["url"]);
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			poco_last_updated($user["url"], true);
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			if (++$checked > 100)
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				return;
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		} else
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			q("UPDATE `gcontact` SET `last_failure` = '%s' WHERE `nurl` = '%s'",
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				dbesc(datetime_convert()), dbesc(normalise_link($user["url"])));
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	}
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}
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function discover_directory($search) {
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	$data = Cache::get("dirsearch:".$search);
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	if (!is_null($data)){
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		// Only search for the same item every 24 hours
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		if (time() < $data + (60 * 60 * 24)) {
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			logger("Already searched for ".$search." in the last 24 hours", LOGGER_DEBUG);
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			return;
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		}
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	}
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	$x = fetch_url(get_server()."/lsearch?p=1&n=500&search=".urlencode($search));
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	$j = json_decode($x);
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	if(count($j->results))
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		foreach($j->results as $jj) {
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			// Check if the contact already exists
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			$exists = q("SELECT `id`, `last_contact`, `last_failure`, `updated` FROM `gcontact` WHERE `nurl` = '%s'", normalise_link($jj->url));
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			if ($exists) {
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				logger("Profile ".$jj->url." already exists (".$search.")", LOGGER_DEBUG);
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				if (($exists[0]["last_contact"] < $exists[0]["last_failure"]) AND
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					($exists[0]["updated"] < $exists[0]["last_failure"]))
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					continue;
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				// Update the contact
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				poco_last_updated($jj->url);
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				continue;
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			}
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			// Harcoded paths aren't so good. But in this case it is okay.
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			// First: We only will get Friendica contacts (which always are using this url schema)
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			// Second: There will be no further problems if we are doing a mistake
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			$server_url = preg_replace("=(https?://)(.*)/profile/(.*)=ism", "$1$2", $jj->url);
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			if ($server_url != $jj->url)
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				if (!poco_check_server($server_url)) {
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					logger("Friendica server ".$server_url." doesn't answer.", LOGGER_DEBUG);
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					continue;
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				}
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					logger("Friendica server ".$server_url." seems to be okay.", LOGGER_DEBUG);
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			logger("Check if profile ".$jj->url." is reachable (".$search.")", LOGGER_DEBUG);
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			$data = probe_url($jj->url);
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			if ($data["network"] == NETWORK_DFRN) {
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				logger("Add profile ".$jj->url." to local directory (".$search.")", LOGGER_DEBUG);
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				poco_check($data["url"], $data["name"], $data["network"], $data["photo"], "", "", "", $jj->tags, $data["addr"], "", 0);
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			}
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		}
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	Cache::set("dirsearch:".$search, time(), CACHE_DAY);
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}
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/**
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 * @brief Search for GNU Social user with gstools.org
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 *
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 * @param str $search User name
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 */
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function gs_search_user($search) {
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	$a = get_app();
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	$url = "http://gstools.org/api/users_search/".urlencode($search);
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	$result = z_fetch_url($url);
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	if (!$result["success"])
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		return false;
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	$contacts = json_decode($result["body"]);
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	if ($contacts->status == 'ERROR')
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		return false;
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	foreach($contacts->data AS $user) {
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		$contact = probe_url($user->site_address."/".$user->name);
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		if ($contact["network"] != NETWORK_PHANTOM) {
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			$contact["about"] = $user->description;
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			update_gcontact($contact);
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		}
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	}
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}
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if (array_search(__file__,get_included_files())===0){
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  discover_poco_run($_SERVER["argv"],$_SERVER["argc"]);
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  killme();
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}
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