+
+function poco_discover_federation() {
+ $last = get_config('poco','last_federation_discovery');
+
+ if($last) {
+ $next = $last + (24 * 60 * 60);
+ if($next > time())
+ return;
+ }
+
+ $serverdata = fetch_url("http://the-federation.info/pods.json");
+
+ if (!$serverdata)
+ return;
+
+ $servers = json_decode($serverdata);
+
+ foreach($servers->pods AS $server)
+ poco_check_server("https://".$server->host);
+
+ set_config('poco','last_federation_discovery', time());
+
+}
+
+function poco_discover($complete = false) {
+
+ // Update the server list
+ poco_discover_federation();
+
+ $no_of_queries = 5;
+
+ $requery_days = intval(get_config("system", "poco_requery_days"));
+
+ if ($requery_days == 0)
+ $requery_days = 7;
+
+ $last_update = date("c", time() - (60 * 60 * 24 * $requery_days));
+
+ $r = q("SELECT `poco`, `nurl`, `url`, `network` FROM `gserver` WHERE `last_contact` >= `last_failure` AND `poco` != '' AND `last_poco_query` < '%s' ORDER BY RAND()", dbesc($last_update));
+ if ($r)
+ foreach ($r AS $server) {
+
+ if (!poco_check_server($server["url"], $server["network"])) {
+ // The server is not reachable? Okay, then we will try it later
+ q("UPDATE `gserver` SET `last_poco_query` = '%s' WHERE `nurl` = '%s'", dbesc(datetime_convert()), dbesc($server["nurl"]));
+ continue;
+ }
+
+ // Fetch all users from the other server
+ $url = $server["poco"]."/?fields=displayName,urls,photos,updated,network,aboutMe,currentLocation,tags,gender,generation";
+
+ logger("Fetch all users from the server ".$server["nurl"], LOGGER_DEBUG);
+
+ $retdata = z_fetch_url($url);
+ if ($retdata["success"]) {
+ $data = json_decode($retdata["body"]);
+
+ poco_discover_server($data, 2);
+
+ if (get_config('system','poco_discovery') > 1) {
+
+ $timeframe = get_config('system','poco_discovery_since');
+ if ($timeframe == 0)
+ $timeframe = 30;
+
+ $updatedSince = date("Y-m-d H:i:s", time() - $timeframe * 86400);
+
+ // Fetch all global contacts from the other server (Not working with Redmatrix and Friendica versions before 3.3)
+ $url = $server["poco"]."/@global?updatedSince=".$updatedSince."&fields=displayName,urls,photos,updated,network,aboutMe,currentLocation,tags,gender,generation";
+
+ $success = false;
+
+ $retdata = z_fetch_url($url);
+ if ($retdata["success"]) {
+ logger("Fetch all global contacts from the server ".$server["nurl"], LOGGER_DEBUG);
+ $success = poco_discover_server(json_decode($retdata["body"]));
+ }
+
+ if (!$success AND (get_config('system','poco_discovery') > 2)) {
+ logger("Fetch contacts from users of the server ".$server["nurl"], LOGGER_DEBUG);
+ poco_discover_server_users($data, $server);
+ }
+ }
+
+ q("UPDATE `gserver` SET `last_poco_query` = '%s' WHERE `nurl` = '%s'", dbesc(datetime_convert()), dbesc($server["nurl"]));
+ if (!$complete AND (--$no_of_queries == 0))
+ break;
+ } else {
+ // If the server hadn't replied correctly, then force a sanity check
+ poco_check_server($server["url"], $server["network"], true);
+
+ // If we couldn't reach the server, we will try it some time later
+ q("UPDATE `gserver` SET `last_poco_query` = '%s' WHERE `nurl` = '%s'", dbesc(datetime_convert()), dbesc($server["nurl"]));
+ }
+ }
+}
+
+function poco_discover_server_users($data, $server) {
+
+ if (!isset($data->entry))
+ return;
+
+ foreach ($data->entry AS $entry) {
+ $username = "";
+ if (isset($entry->urls)) {
+ foreach($entry->urls as $url)
+ if($url->type == 'profile') {
+ $profile_url = $url->value;
+ $urlparts = parse_url($profile_url);
+ $username = end(explode("/", $urlparts["path"]));
+ }
+ }
+ if ($username != "") {
+ logger("Fetch contacts for the user ".$username." from the server ".$server["nurl"], LOGGER_DEBUG);
+
+ // Fetch all contacts from a given user from the other server
+ $url = $server["poco"]."/".$username."/?fields=displayName,urls,photos,updated,network,aboutMe,currentLocation,tags,gender,generation";
+
+ $retdata = z_fetch_url($url);
+ if ($retdata["success"])
+ poco_discover_server(json_decode($retdata["body"]), 3);
+ }
+ }
+}
+
+function poco_discover_server($data, $default_generation = 0) {
+
+ if (!isset($data->entry) OR !count($data->entry))
+ return false;
+
+ $success = false;
+
+ foreach ($data->entry AS $entry) {
+ $profile_url = '';
+ $profile_photo = '';
+ $connect_url = '';
+ $name = '';
+ $network = '';
+ $updated = '0000-00-00 00:00:00';
+ $location = '';
+ $about = '';
+ $keywords = '';
+ $gender = '';
+ $generation = $default_generation;
+
+ $name = $entry->displayName;
+
+ if(isset($entry->urls)) {
+ foreach($entry->urls as $url) {
+ if($url->type == 'profile') {
+ $profile_url = $url->value;
+ continue;
+ }
+ if($url->type == 'webfinger') {
+ $connect_url = str_replace('acct:' , '', $url->value);
+ continue;
+ }
+ }
+ }
+
+ if(isset($entry->photos)) {
+ foreach($entry->photos as $photo) {
+ if($photo->type == 'profile') {
+ $profile_photo = $photo->value;
+ continue;
+ }
+ }
+ }
+
+ if(isset($entry->updated))
+ $updated = date("Y-m-d H:i:s", strtotime($entry->updated));
+
+ if(isset($entry->network))
+ $network = $entry->network;
+
+ if(isset($entry->currentLocation))
+ $location = $entry->currentLocation;
+
+ if(isset($entry->aboutMe))
+ $about = html2bbcode($entry->aboutMe);
+
+ if(isset($entry->gender))
+ $gender = $entry->gender;
+
+ if(isset($entry->generation) AND ($entry->generation > 0))
+ $generation = ++$entry->generation;
+
+ if(isset($entry->tags))
+ foreach($entry->tags as $tag)
+ $keywords = implode(", ", $tag);
+
+ if ($generation > 0) {
+ $success = true;
+
+ logger("Store profile ".$profile_url, LOGGER_DEBUG);
+ poco_check($profile_url, $name, $network, $profile_photo, $about, $location, $gender, $keywords, $connect_url, $updated, $generation, 0, 0, 0);
+ logger("Done for profile ".$profile_url, LOGGER_DEBUG);
+ }
+ }
+ return $success;
+}
+?>