From 3389df77cc01cb7527623efebc9a640ad1454eb3 Mon Sep 17 00:00:00 2001
From: zotlabs <mike@macgirvin.com>
Date: Tue, 18 Apr 2017 21:18:49 -0700
Subject: give the item_obscured flag a new lease on life by using it to
 designate third party client-side e2ee or binary content which can only be
 downloaded and not viewed directly on the web (as a side effect this also
 allows binary files to be submitted as activities/content). The content
 display is suppressed and replaced with a download button. This is unfinished
 but harmless to backport while work is in progress unless told otherwise.
 Future development will take care of the remaining loose ends.

---
 include/conversation.php |  8 --------
 include/text.php         | 18 +++++++++++++++++-
 view/tpl/item_binary.tpl |  3 +++
 3 files changed, 20 insertions(+), 9 deletions(-)
 create mode 100644 view/tpl/item_binary.tpl

diff --git a/include/conversation.php b/include/conversation.php
index c325a516f..3f9ee5cfa 100644
--- a/include/conversation.php
+++ b/include/conversation.php
@@ -353,14 +353,6 @@ function localize_item(&$item){
 	}
 */
 
-	// if item body was obscured and we changed it, re-obscure it
-	// FIXME - we need a better filter than just the string 'data'; try and
-	// match the fact that it's json encoded
-
-	if(intval($item['item_obscured'])
-		&& strlen($item['body']) && (! strpos($item['body'],'data'))) {
-		$item['body']  = z_obscure($item['body']);
-	}
 
 }
 
diff --git a/include/text.php b/include/text.php
index 6f5c48679..b8914c44b 100644
--- a/include/text.php
+++ b/include/text.php
@@ -1562,7 +1562,12 @@ function prepare_body(&$item,$attach = false) {
 		}
 	}
 
-	$s .= prepare_text($item['body'],$item['mimetype'], false);
+	if($item['item_obscured']) {
+		$s .= prepare_binary($item);
+	}
+	else {
+		$s .= prepare_text($item['body'],$item['mimetype'], false);
+	}
 
 	$event = (($item['obj_type'] === ACTIVITY_OBJ_EVENT) ? format_event_obj($item['obj']) : false);
 
@@ -1625,6 +1630,17 @@ function prepare_body(&$item,$attach = false) {
 	return $prep_arr;
 }
 
+
+function prepare_binary($item) {
+	return replace_macros(get_markup_template('item_binary.tpl'), [
+		'$download'  => t('Download binary/encrypted content'),
+		'$url'       => z_root() . '/viewsrc/' . $item['id'] . '/download'
+	]);
+}
+
+
+
+
 /**
  * @brief Given a text string, convert from bbcode to html and add smilie icons.
  *
diff --git a/view/tpl/item_binary.tpl b/view/tpl/item_binary.tpl
new file mode 100644
index 000000000..b19f7e7dd
--- /dev/null
+++ b/view/tpl/item_binary.tpl
@@ -0,0 +1,3 @@
+<p>
+<center><a class="zrl" href="{{$url}}"><button class="btn btn-warning fakelink">{{$download}}</button></a></center>
+</p>
-- 
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