X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=mod%2Ffetch.php;h=afb5b88af3dc223fbeb1db19f6e2bf95d3d0a230;hb=db2d0e009503539b134fd43837d440028d5b8de7;hp=457fc86a6d071e5504a2ed7c7e02c762d37c9937;hpb=2d72e2d93219dfbb3eb237154a8837958cf50ea7;p=friendica.git

diff --git a/mod/fetch.php b/mod/fetch.php
index 457fc86a6d..afb5b88af3 100644
--- a/mod/fetch.php
+++ b/mod/fetch.php
@@ -2,9 +2,13 @@
 /*
 This file is part of the Diaspora protocol. It is used for fetching single public posts.
 */
+require_once("include/crypto.php");
 require_once("include/diaspora.php");
+require_once("include/xml.php");
 
-function fetch_init($a){
+/// @TODO You always make it like this: function foo(&$a)
+/// @TODO This means that the value of $a can be changed in anything, remove & and use App as type-hint
+function fetch_init(&$a){
 
 	if (($a->argc != 3) OR (!in_array($a->argv[1], array("post", "status_message", "reshare")))) {
 		header($_SERVER["SERVER_PROTOCOL"].' 404 '.t('Not Found'));
@@ -13,76 +17,47 @@ function fetch_init($a){
 
 	$guid = $a->argv[2];
 
-	$item = q("SELECT `uid`, `title`, `body`, `guid`, `contact-id`, `private`, `created`, `app`, `location`
-			FROM `item` WHERE `wall` AND NOT `private`  AND `guid` = '%s' AND `network` IN ('%s', '%s') AND `id` = `parent` LIMIT 1",
+	// Fetch the item
+	$item = q("SELECT `uid`, `title`, `body`, `guid`, `contact-id`, `private`, `created`, `app`, `location`, `coord`
+			FROM `item` WHERE `wall` AND NOT `private` AND `guid` = '%s' AND `network` IN ('%s', '%s') AND `id` = `parent` LIMIT 1",
 		dbesc($guid), NETWORK_DFRN, NETWORK_DIASPORA);
 	if (!$item) {
+		$r = q("SELECT `author-link`
+			FROM `item` WHERE `uid` = 0 AND `guid` = '%s' AND `network` IN ('%s', '%s') AND `id` = `parent` LIMIT 1",
+			dbesc($guid), NETWORK_DFRN, NETWORK_DIASPORA);
+		if ($r) {
+			$parts = parse_url($r[0]["author-link"]);
+			$host = $parts["scheme"]."://".$parts["host"];
+
+			if (normalise_link($host) != normalise_link(App::get_baseurl())) {
+				$location = $host."/fetch/".$a->argv[1]."/".urlencode($guid);
+
+				header("HTTP/1.1 301 Moved Permanently");
+				header("Location:".$location);
+				killme();
+			}
+		}
+
 		header($_SERVER["SERVER_PROTOCOL"].' 404 '.t('Not Found'));
 		killme();
 	}
-	$post = array();
-
-	$reshared = diaspora::is_reshare($item[0]["body"]);
-
-	if ($reshared) {
-		$nodename = "reshare";
-		$post["root_diaspora_id"] = $reshared["root_handle"];
-		$post["root_guid"] = $reshared["root_guid"];
-		$post["guid"] = $item[0]["guid"];
-		$post["diaspora_handle"] = diaspora::handle_from_contact($item[0]["contact-id"]);
-		$post["public"] = (!$item[0]["private"] ? 'true':'false');
-		$post["created_at"] = datetime_convert('UTC','UTC',$item[0]["created"]);
-	} else {
-		$body = bb2diaspora($item[0]["body"]);
-
-		if(strlen($item[0]["title"]))
-			$body = "## ".html_entity_decode($item[0]["title"])."\n\n".$body;
-
-		$nodename = "status_message";
-		$post["raw_message"] = str_replace("&", "&", $body);
-		$post["location"] = $item[0]["location"];
-		$post["guid"] = $item[0]["guid"];
-		$post["diaspora_handle"] = diaspora::handle_from_contact($item[0]["contact-id"]);
-		$post["public"] = (!$item[0]["private"] ? 'true':'false');
-		$post["created_at"] = datetime_convert('UTC','UTC',$item[0]["created"]);
-		$post["provider_display_name"] = $item[0]["app"];
-	}
 
-	$data = array("XML" => array("post" => array($nodename => $post)));
-	$xml = xml::from_array($data, $xmlobj);
-
-	$r = q("SELECT `prvkey` FROM `user` WHERE `uid` = %d", intval($item[0]["uid"]));
+	// Fetch some data from the author (We could combine both queries - but I think this is more readable)
+	$r = q("SELECT `user`.`prvkey`, `contact`.`addr`, `user`.`nickname`, `contact`.`nick` FROM `user`
+		INNER JOIN `contact` ON `contact`.`uid` = `user`.`uid`
+		WHERE `user`.`uid` = %d", intval($item[0]["uid"]));
 	if (!$r) {
 		header($_SERVER["SERVER_PROTOCOL"].' 404 '.t('Not Found'));
 		killme();
 	}
-
 	$user = $r[0];
 
-	$key_id = "";
-
-	$b64url_data = base64url_encode($xml);
-	$data = str_replace(array("\n", "\r", " ", "\t"), array("", "", "", ""), $b64url_data);
-
-	$type = "application/xml";
-	$encoding = "base64url";
-	$alg = "RSA-SHA256";
-	$signable_data = $data.".".base64url_encode($type).".".base64url_encode($encoding).".".base64url_encode($alg);
-	$signature = rsa_sign($signable_data, $user["prvkey"]);
-	$sig = base64url_encode($signature);
-
-	$xmldata = array("me:env" => array("me:data" => $data,
-							"@attributes" => array("type" => $type),
-							"me:encoding" => $encoding,
-							"me:alg" => $alg,
-							"me:sig" => $sig,
-							"@attributes2" => array("key_id" => $key_id)));
-
-	$namespaces = array("me" => "http://salmon-protocol.org/ns/magic-env");
+	$status = Diaspora::build_status($item[0], $user);
+	$xml = Diaspora::build_post_xml($status["type"], $status["message"]);
 
-	$envelope = xml::from_array($xmldata, $xml, false, $namespaces);
-	header("Content-Type: application/xml; charset=utf-8");
-	echo $envelope;
+	// Send the envelope
+	header("Content-Type: application/magic-envelope+xml; charset=utf-8");
+	echo Diaspora::build_magic_envelope($xml, $user);
 
 	killme();
 }