Merge pull request #1804 from annando/1508-public-relay

First steps for a relay for public posts

include/diaspora.php

@@ -34,8 +34,15 @@ function diaspora_dispatch_public($msg) {
 			diaspora_dispatch($rr,$msg);
 		}
 	}
-	else
+	else {
-		logger('diaspora_public: no subscribers');
+		logger('diaspora_public: no subscribers for '.$msg["author"].' '.print_r($msg, true));
+
+		// Use a dummy importer
+		$importer = array("uid" => 0, "page-flags" => PAGE_FREELOVE);
+		$result = diaspora_dispatch($importer,$msg);
+
+		logger("Dispatcher reported ".$result, LOGGER_DEBUG);
+	}
 }
 
 
@@ -782,6 +789,11 @@ function diaspora_post_allow($importer,$contact) {
 	if($contact['rel'] == CONTACT_IS_FOLLOWER)
 		if($importer['page-flags'] == PAGE_COMMUNITY)
 			return true;
+
+	// Messages for the global users are always accepted
+	if ($importer['uid'] == 0)
+		return true;
+
 	return false;
 }
 
@@ -823,8 +835,10 @@ function diaspora_post($importer,$xml,$msg) {
 	}
 
 	$contact = diaspora_get_contact_by_handle($importer['uid'],$diaspora_handle);
-	if(! $contact)
+	if(! $contact) {
-		return;
+		logger('diaspora_post: A Contact for handle '.$diaspora_handle.' and user '.$importer['uid'].' was not found');
+		return 203;
+	}
 
 	if(! diaspora_post_allow($importer,$contact)) {
 		logger('diaspora_post: Ignoring this author.');
@@ -839,7 +853,7 @@ function diaspora_post($importer,$xml,$msg) {
 	);
 	if(count($r)) {
 		logger('diaspora_post: message exists: ' . $guid);
-		return;
+		return 208;
 	}
 
 	$created = unxmlify($xml->created_at);
@@ -905,7 +919,9 @@ function diaspora_post($importer,$xml,$msg) {
 	DiasporaFetchGuid($datarray);
 	$message_id = item_store($datarray);
 
-	return;
+	logger("Stored item with message id ".$message_id, LOGGER_DEBUG);
+
+	return 201;
 
 }
 
@@ -3064,3 +3080,47 @@ function diaspora_transmit($owner,$contact,$slap,$public_batch,$queue_run=false)
 
 	return(($return_code) ? $return_code : (-1));
 }
+
+function diaspora_fetch_relay() {
+
+	$serverdata = get_config("system", "relay_server");
+	if ($serverdata == "")
+		return array();
+
+	$relay = array();
+
+	$servers = explode(",", $serverdata);
+
+	foreach($servers AS $server) {
+		$server = trim($server);
+		$batch = $server."/receive/public";
+
+		$relais = q("SELECT `batch`, `id`, `name`,`network` FROM `contact` WHERE `uid` = 0 AND `batch` = '%s' LIMIT 1", dbesc($batch));
+
+		if (!$relais) {
+			$addr = "relay@".str_replace("http://", "", normalise_link($server));
+
+			$r = q("INSERT INTO `contact` (`uid`, `created`, `name`, `nick`, `addr`, `url`, `nurl`, `batch`, `network`, `rel`, `blocked`, `pending`, `writable`, `name-date`, `uri-date`, `avatar-date`)
+				VALUES (0, '%s', '%s', 'relay', '%s', '%s', '%s', '%s', '%s', %d, 0, 0, 1, '%s', '%s', '%s')",
+				datetime_convert(),
+				dbesc($addr),
+				dbesc($addr),
+				dbesc($server),
+				dbesc(normalise_link($server)),
+				dbesc($batch),
+				dbesc(NETWORK_DIASPORA),
+				intval(CONTACT_IS_FOLLOWER),
+				dbesc(datetime_convert()),
+				dbesc(datetime_convert()),
+				dbesc(datetime_convert())
+			);
+
+			$relais = q("SELECT `batch`, `id`, `name`,`network` FROM `contact` WHERE `uid` = 0 AND `batch` = '%s' LIMIT 1", dbesc($batch));
+			if ($relais)
+				$relay[] = $relais[0];
+		} else
+			$relay[] = $relais[0];
+	}
+
+	return $relay;
+}

include/notifier.php

@@ -3,6 +3,7 @@ require_once("boot.php");
 require_once('include/queue_fn.php');
 require_once('include/html2plain.php');
 require_once("include/Scrape.php");
+require_once('include/diaspora.php');
 
 /*
  * This file was at one time responsible for doing all deliveries, but this caused
@@ -874,8 +875,6 @@ function notifier_run(&$argv, &$argc){
 					}
 					break;
 				case NETWORK_DIASPORA:
-					require_once('include/diaspora.php');
-
 					if(get_config('system','dfrn_only') || (! get_config('system','diaspora_enabled')))
 						break;
 
@@ -958,6 +957,11 @@ function notifier_run(&$argv, &$argc){
 
 	if($public_message) {
 
+		if (!$followup)
+			$r0 = diaspora_fetch_relay();
+		else
+			$r0 = array();
+
 		$r1 = q("SELECT DISTINCT(`batch`), `id`, `name`,`network` FROM `contact` WHERE `network` = '%s'
 			AND `uid` = %d AND `rel` != %d group by `batch` ORDER BY rand() ",
 			dbesc(NETWORK_DIASPORA),
@@ -974,7 +978,7 @@ function notifier_run(&$argv, &$argc){
 			intval(CONTACT_IS_SHARING)
 		);
 
-		$r = array_merge($r2,$r1);
+		$r = array_merge($r2,$r1,$r0);
 
 		if(count($r)) {
 			logger('pubdeliver: ' . print_r($r,true), LOGGER_DEBUG);

mod/_well_known.php

@@ -7,8 +7,56 @@ function _well_known_init(&$a){
 			case "host-meta":
 				hostxrd_init($a);
 				break;
+			case "x-social-relay":
+				wk_social_relay($a);
+				break;
 		}
 	}
 	http_status_exit(404);
 	killme();
 }
+
+function wk_social_relay(&$a) {
+
+	define('SR_SCOPE_ALL', 'all');
+	define('SR_SCOPE_TAGS', 'tags');
+
+	$subscribe = (bool)get_config('system', 'relay_subscribe');
+
+	if ($subscribe)
+		$scope = get_config('system', 'relay_scope');
+	else
+		$scope = "";
+
+	$tags = array();
+
+	if ($scope == SR_SCOPE_TAGS) {
+
+		$server_tags = get_config('system', 'relay_server_tags');
+		$tagitems = explode(",", $server_tags);
+
+		foreach($tagitems AS $tag)
+			$tags[trim($tag, "# ")] = trim($tag, "# ");
+
+		if (get_config('system', 'relay_user_tags')) {
+			$terms = q("SELECT DISTINCT(`term`) FROM `search`");
+
+			foreach($terms AS $term) {
+				$tag = trim($term["term"], "#");
+				$tags[$tag] = $tag;
+			}
+		}
+	}
+
+	$taglist = array();
+	foreach($tags AS $tag)
+		$taglist[] = $tag;
+
+	$relay = array("subscribe" => $subscribe,
+			"scope" => $scope,
+			"tags" => $taglist);
+
+	header('Content-type: application/json; charset=utf-8');
+	echo json_encode($relay, true);
+	exit;
+}