+function discover_users() {
+ logger("Discover users", LOGGER_DEBUG);
+
+ $users = q("SELECT `url`, `created`, `updated`, `last_failure`, `last_contact`, `server_url` FROM `gcontact`
+ WHERE `last_contact` < UTC_TIMESTAMP - INTERVAL 1 MONTH AND
+ `last_failure` < UTC_TIMESTAMP - INTERVAL 1 MONTH AND
+ `network` IN ('%s', '%s', '%s', '%s', '') ORDER BY rand()",
+ dbesc(NETWORK_DFRN), dbesc(NETWORK_DIASPORA),
+ dbesc(NETWORK_OSTATUS), dbesc(NETWORK_FEED));
+
+ if (!$users)
+ return;
+
+ $checked = 0;
+
+ foreach ($users AS $user) {
+
+ $urlparts = parse_url($user["url"]);
+ if (!isset($urlparts["scheme"])) {
+ q("UPDATE `gcontact` SET `network` = '%s' WHERE `nurl` = '%s'",
+ dbesc(NETWORK_PHANTOM), dbesc(normalise_link($user["url"])));
+ continue;
+ }
+
+ if (in_array($urlparts["host"], array("www.facebook.com", "facebook.com", "twitter.com",
+ "identi.ca", "alpha.app.net"))) {
+ $networks = array("www.facebook.com" => NETWORK_FACEBOOK,
+ "facebook.com" => NETWORK_FACEBOOK,
+ "twitter.com" => NETWORK_TWITTER,
+ "identi.ca" => NETWORK_PUMPIO,
+ "alpha.app.net" => NETWORK_APPNET);
+
+ q("UPDATE `gcontact` SET `network` = '%s' WHERE `nurl` = '%s'",
+ dbesc($networks[$urlparts["host"]]), dbesc(normalise_link($user["url"])));
+ continue;
+ }
+
+ if ($user["server_url"] != "")
+ $server_url = $user["server_url"];
+ else
+ $server_url = poco_detect_server($user["url"]);
+
+ if (($server_url == "") OR poco_check_server($server_url, $gcontacts[0]["network"])) {
+ logger('Check user '.$user["url"]);
+ poco_last_updated($user["url"], true);
+
+ if (++$checked > 100)
+ return;
+ } else
+ q("UPDATE `gcontact` SET `last_failure` = '%s' WHERE `nurl` = '%s'",
+ dbesc(datetime_convert()), dbesc(normalise_link($user["url"])));
+ }
+}
+
+function discover_directory($search) {
+
+ $data = Cache::get("dirsearch:".$search);
+ if (!is_null($data)){
+ // Only search for the same item every 24 hours
+ if (time() < $data + (60 * 60 * 24)) {
+ logger("Already searched for ".$search." in the last 24 hours", LOGGER_DEBUG);
+ return;
+ }
+ }
+
+ $x = fetch_url(get_server()."/lsearch?p=1&n=500&search=".urlencode($search));
+ $j = json_decode($x);
+
+ if(count($j->results))
+ foreach($j->results as $jj) {
+ // Check if the contact already exists
+ $exists = q("SELECT `id`, `last_contact`, `last_failure`, `updated` FROM `gcontact` WHERE `nurl` = '%s'", normalise_link($jj->url));
+ if ($exists) {
+ logger("Profile ".$jj->url." already exists (".$search.")", LOGGER_DEBUG);
+
+ if (($exists[0]["last_contact"] < $exists[0]["last_failure"]) AND
+ ($exists[0]["updated"] < $exists[0]["last_failure"]))
+ continue;
+
+ // Update the contact
+ poco_last_updated($jj->url);
+ continue;
+ }
+
+ // Harcoded paths aren't so good. But in this case it is okay.
+ // First: We only will get Friendica contacts (which always are using this url schema)
+ // Second: There will be no further problems if we are doing a mistake
+ $server_url = preg_replace("=(https?://)(.*)/profile/(.*)=ism", "$1$2", $jj->url);
+ if ($server_url != $jj->url)
+ if (!poco_check_server($server_url)) {
+ logger("Friendica server ".$server_url." doesn't answer.", LOGGER_DEBUG);
+ continue;
+ }
+ logger("Friendica server ".$server_url." seems to be okay.", LOGGER_DEBUG);
+
+ logger("Check if profile ".$jj->url." is reachable (".$search.")", LOGGER_DEBUG);
+ $data = probe_url($jj->url);
+ if ($data["network"] == NETWORK_DFRN) {
+ logger("Add profile ".$jj->url." to local directory (".$search.")", LOGGER_DEBUG);
+ poco_check($data["url"], $data["name"], $data["network"], $data["photo"], "", "", "", $jj->tags, $data["addr"], "", 0);
+ }
+ }
+ Cache::set("dirsearch:".$search, time(), CACHE_DAY);
+}
+
+/**
+ * @brief Search for GNU Social user with gstools.org
+ *
+ * @param str $search User name
+ */
+function gs_search_user($search) {
+
+ $a = get_app();
+
+ $url = "http://gstools.org/api/users_search/".urlencode($search);
+
+ $result = z_fetch_url($url);
+ if (!$result["success"])
+ return false;
+
+ $contacts = json_decode($result["body"]);
+
+ if ($contacts->status == 'ERROR')
+ return false;
+
+ foreach($contacts->data AS $user) {
+ $contact = probe_url($user->site_address."/".$user->name);
+ if ($contact["network"] != NETWORK_PHANTOM) {
+ $contact["about"] = $user->description;
+ update_gcontact($contact);
+ }
+ }
+}
+
+