From ac476a23b5d94f55f746fab77c3b0a198537a19b Mon Sep 17 00:00:00 2001
From: David Anderson <davea@ssl.berkeley.edu>
Date: Thu, 8 May 2014 00:50:22 -0700
Subject: [PATCH] Web: send News notices containing images/video only to 7.3+
 clients

---
 html/inc/forum_rss.inc | 14 ++++++++++++--
 html/user/notices.php  |  5 ++++-
 2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/html/inc/forum_rss.inc b/html/inc/forum_rss.inc
index 4e69026468..b7696452cb 100644
--- a/html/inc/forum_rss.inc
+++ b/html/inc/forum_rss.inc
@@ -22,7 +22,16 @@ require_once("../inc/util.inc");
 require_once("../inc/text_transform.inc");
 require_once("../project/project.inc");
 
-function show_forum_rss_item($thread, $userid, $threads_only) {
+// return true if the given HTML may contain images or video
+//
+function contains_image_or_video($x) {
+    if (strstr($x, "<img ")) return true;
+    if (strstr($x, "<object ")) return true;
+    if (strstr($x, "<iframe ")) return true;
+    return false;
+}
+
+function show_forum_rss_item($thread, $userid, $threads_only, $no_images) {
     $unique_url=URL_BASE."forum_thread.php?id=".$thread->id;
 
     $clause2 = " and hidden=0 ";
@@ -42,6 +51,7 @@ function show_forum_rss_item($thread, $userid, $threads_only) {
         $options->htmlitems = false;
     }
     $t = output_transform($post->content, $options);
+    if ($no_images && contains_image_or_video($t)) return;
     echo "<item>
         <title><![CDATA[".sanitize_tags(bb2html($thread->title))."]]></title>
         <link>$unique_url</link>
@@ -112,7 +122,7 @@ function forum_rss($forumid, $userid, $threads_only, $ndays) {
     ";
 
     foreach ($threads as $thread) {
-        show_forum_rss_item($thread, $userid, $threads_only);
+        show_forum_rss_item($thread, $userid, $threads_only, false);
     }
 
     echo "
diff --git a/html/user/notices.php b/html/user/notices.php
index 6996559797..9ba828d3df 100644
--- a/html/user/notices.php
+++ b/html/user/notices.php
@@ -97,6 +97,9 @@ foreach ($threads as $t) {
 
 usort($items, 'notice_cmp');
 
+$client_version = boinc_client_version();
+$no_images = ($client_version < 73000);
+
 notices_rss_start();
 foreach ($items as $item) {
     switch ($item->type) {
@@ -104,7 +107,7 @@ foreach ($items as $item) {
         show_notify_rss_item($item->val);
         break;
     case 1:
-        show_forum_rss_item($item->val, 0, 1, 0);
+        show_forum_rss_item($item->val, 0, 1, $no_images);
         break;
     }
 }