From 222fe08420802f7eacd4a544953f507d536c3fb8 Mon Sep 17 00:00:00 2001
From: friendica <info@friendica.com>
Date: Thu, 1 Aug 2013 18:50:36 -0700
Subject: ensure that no unencrypted content leaks through item_store which is
 private - we typically do this in mod/item, but some functions bypass
 mod/item to create private posts

---
 include/ItemObject.php |  2 +-
 include/items.php      | 33 ++++++++++++++++++++++++---------
 include/text.php       |  2 +-
 mod/mood.php           |  3 ++-
 4 files changed, 28 insertions(+), 12 deletions(-)

diff --git a/include/ItemObject.php b/include/ItemObject.php
index b31e60cbc..8c8c0ee2a 100644
--- a/include/ItemObject.php
+++ b/include/ItemObject.php
@@ -262,7 +262,7 @@ class Item extends BaseObject {
 			}
 		}
 		
-		$result['private'] = $item['private'];
+		$result['private'] = $item['item_private'];
 		$result['toplevel'] = ($this->is_toplevel() ? 'toplevel_item' : '');
 
 		if($this->is_threaded()) {
diff --git a/include/items.php b/include/items.php
index 13d891736..b1ec3b14f 100755
--- a/include/items.php
+++ b/include/items.php
@@ -1356,18 +1356,33 @@ function item_store($arr,$force_parent = false) {
 	if(array_key_exists('parent',$arr))
 		unset($arr['parent']);
 
-	$arr['lang'] = detect_language($arr['body']);
 
-	$allowed_languages = get_pconfig($arr['uid'],'system','allowed_languages');
+	// only detect language if we have text content, and if the post is private but not yet
+	// obscured, make it so.
+
+	if(! ($arr['item_flags'] & ITEM_OBSCURED)) {
+		$arr['lang'] = detect_language($arr['body']);
+
+		$allowed_languages = get_pconfig($arr['uid'],'system','allowed_languages');
 	
-	if((is_array($allowed_languages)) && ($arr['lang']) && (! array_key_exists($arr['lang'],$allowed_languages))) {
-		$translate = array('item' => $arr, 'from' => $arr['lang'], 'to' => $allowed_languages, 'translated' => false);
-		call_hooks('item_translate', $translate);
-		if((! $translate['translated']) && (intval(get_pconfig($arr['uid'],'system','reject_disallowed_languages')))) {
-			logger('item_store: language ' . $arr['lang'] . ' not accepted for uid ' . $arr['uid']);
-			return;
+		if((is_array($allowed_languages)) && ($arr['lang']) && (! array_key_exists($arr['lang'],$allowed_languages))) {
+			$translate = array('item' => $arr, 'from' => $arr['lang'], 'to' => $allowed_languages, 'translated' => false);
+			call_hooks('item_translate', $translate);
+			if((! $translate['translated']) && (intval(get_pconfig($arr['uid'],'system','reject_disallowed_languages')))) {
+				logger('item_store: language ' . $arr['lang'] . ' not accepted for uid ' . $arr['uid']);
+				return;
+			}
+			$arr = $translate['item'];
 		}
-		$arr = $translate['item'];
+		if($arr['item_private']) {
+			$key = get_config('system','pubkey');
+			$arr['item_flags'] = $arr['item_flags'] | ITEM_OBSCURED;
+			if($arr['title'])
+				$arr['title'] = json_encode(aes_encapsulate($arr['title'],$key));
+			if($arr['body'])
+				$arr['body']  = json_encode(aes_encapsulate($arr['body'],$key));
+		}
+
 	}
 
 	// Shouldn't happen but we want to make absolutely sure it doesn't leak from a plugin.
diff --git a/include/text.php b/include/text.php
index 890355aea..66fa668a9 100755
--- a/include/text.php
+++ b/include/text.php
@@ -1258,7 +1258,7 @@ function feed_salmonlinks($nick) {
 
 function get_plink($item) {
 	$a = get_app();	
-	if (x($item,'plink') && ($item['private'] != 1)) {
+	if (x($item,'plink') && ($item['item_private'] != 1)) {
 		return array(
 			'href' => $item['plink'],
 			'title' => t('link to source'),
diff --git a/mod/mood.php b/mod/mood.php
index 0c611997c..7b6a0c392 100755
--- a/mod/mood.php
+++ b/mod/mood.php
@@ -38,7 +38,7 @@ function mood_init(&$a) {
 		);
 		if(count($r)) {
 			$parent_mid = $r[0]['mid'];
-			$private    = $r[0]['private'];
+			$private    = $r[0]['item_private'];
 			$allow_cid  = $r[0]['allow_cid'];
 			$allow_gid  = $r[0]['allow_gid'];
 			$deny_cid   = $r[0]['deny_cid'];
@@ -80,6 +80,7 @@ function mood_init(&$a) {
 	$arr['allow_gid']     = $allow_gid;
 	$arr['deny_cid']      = $deny_cid;
 	$arr['deny_gid']      = $deny_gid;
+	$arr['item_private']  = $private;
 	$arr['verb']          = $activity;
 	$arr['body']          = $action;
 
-- 
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