use feed title for channel name before checking author, make feed items shareable (they're private to the channel so they won't be shown in searches), try and handle Diaspora mentions a bit more elegantly. (Bug: we don't convert mentions to Diaspora's format on outbound at all!)

include/ItemObject.php

@@ -90,6 +90,10 @@ class Item extends BaseObject {
 			: false);
 		$shareable = ((($conv->get_profile_owner() == local_user()) && ($item['item_private'] != 1)) ? true : false);
 
+		// allow an exemption for sharing stuff from your private feeds
+		if($item['author']['xchan_network'] === 'rss')
+			$shareable = true;
+
 		$mode = $conv->get_mode();
 
 		if(local_user() && $observer['xchan_hash'] === $item['author_xchan'])
@@ -207,10 +211,11 @@ class Item extends BaseObject {
 		if($this->is_commentable()) {
 			$like = array( t("I like this \x28toggle\x29"), t("like"));
 			$dislike = array( t("I don't like this \x28toggle\x29"), t("dislike"));
-			if ($shareable)
-				$share = array( t('Share This'), t('share'));
 		}
 
+		if ($shareable)
+			$share = array( t('Share This'), t('share'));
+
 		if(strcmp(datetime_convert('UTC','UTC',$item['created']),datetime_convert('UTC','UTC','now - 12 hours')) > 0)
 			$indent .= ' shiny';
 

include/bb2diaspora.php

@@ -77,6 +77,25 @@ function share_unshield($m) {
 }
 
 
+function diaspora_mention_callback($matches) {
+
+	$webbie = $matches[2];
+	$link = '';
+	if($webbie) {
+		$r = q("select * from hubloc left join xchan on hubloc_hash = xchan_hash where hubloc_addr = '%s' limit 1",
+			dbesc($webbie)
+		);
+		if($r)
+			$link = $r[0]['xchan_url'];
+	}
+	if(! $link)
+		$link = 'https://' . $matches[3] . '/u/' . $matches[2];
+
+	return '@[url=' . $link . ']' . trim($matches[1]) . '[/url]';
+
+}
+
+
 
 // we don't want to support a bbcode specific markdown interpreter
 // and the markdown library we have is pretty good, but provides HTML output.
@@ -97,7 +116,10 @@ function diaspora2bb($s,$use_zrl = false) {
 	$s = str_replace("<br/>","<br />",$s);
 	$s = str_replace("\n","<br />",$s);
 
-	$s = preg_replace('/\@\{(.+?)\; (.+?)\@(.+?)\}/','@[url=https://$3/u/$2]$1[/url]',$s);
+
+//	$s = preg_replace('/\@\{(.+?)\; (.+?)\@(.+?)\}/','@[url=https://$3/u/$2]$1[/url]',$s);
+
+	$s = preg_replace_callback('/\@\{(.+?)\; (.+?)\@(.+?)\}/','diaspora_mention_callback',$s);
 
 	// Escaping the hash tags - doesn't always seem to work
 	// $s = preg_replace('/\#([^\s\#])/','\\#$1',$s);

include/network.php

@@ -868,15 +868,18 @@ function discover_by_url($url,$arr = null) {
 	if($feed->error())
 		logger('probe_url: scrape_feed: Error parsing XML: ' . $feed->error());
 
+	$name = unxmlify(trim($feed->get_title()));
 	$photo = $feed->get_image_url();
 	$author = $feed->get_author();
 
 	if($author) {
-		$name = unxmlify(trim($author->get_name()));
 		if(! $name)
+			$name = unxmlify(trim($author->get_name()));
+		if(! $name) {
 			$name = trim(unxmlify($author->get_email()));
-		if(strpos($name,'@') !== false)
+			if(strpos($name,'@') !== false)
-			$name = substr($name,0,strpos($name,'@'));
+				$name = substr($name,0,strpos($name,'@'));
+		}
 		if(! $profile && $author->get_link())
 			$profile = trim(unxmlify($author->get_link()));
 		if(! $photo) {
@@ -924,8 +927,7 @@ function discover_by_url($url,$arr = null) {
 	if(! $network) {
 		$network = 'rss';
 	}
-	if(! $name)
+
-		$name = notags($feed->get_title());
 	if(! $name)
 		$name = notags($feed->get_description());
 

mod/share.php

@@ -14,10 +14,12 @@ function share_init(&$a) {
 		killme();
 
 
-	$r = q("SELECT * from item WHERE id = %d  LIMIT 1",
+	$r = q("SELECT * from item left join xchan on author_xchan = xchan_hash WHERE id = %d  LIMIT 1",
 		intval($post_id)
 	);
-	if((! $r) || $r[0]['item_private'])
+	if(! $r)
+		killme();
+	if(($r[0]['item_private']) && ($r[0]['xchan_network'] !== 'rss'))
 		killme();
 
 	$sql_extra = item_permissions_sql($r[0]['uid']);