From 8f94c721bffab9f2ee4aeb045fb81a9840013211 Mon Sep 17 00:00:00 2001
From: redmatrix <redmatrix@redmatrix.me>
Date: Thu, 19 Nov 2015 16:05:47 -0800
Subject: new feature: 'suppress_duplicates' issue #146 triggered with less
 than two minutes between posts having identical content.

---
 include/features.php |  1 +
 mod/admin.php        |  5 +++--
 mod/item.php         | 20 ++++++++++++++++++++
 3 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/include/features.php b/include/features.php
index 74ae7b3d7..4e962b00e 100644
--- a/include/features.php
+++ b/include/features.php
@@ -60,6 +60,7 @@ function get_features() {
 			array('content_encrypt', t('Even More Encryption'),          t('Allow optional encryption of content end-to-end with a shared secret key'),false),
 			array('consensus_tools', t('Enable Voting Tools'),      t('Provide a class of post which others can vote on'),false),
 			array('delayed_posting', t('Delayed Posting'),      t('Allow posts to be published at a later date'),false),
+			array('suppress_duplicates', t('Suppress Duplicate Posts/Comments'),  t('Prevent posts with identical content to be published with less than two minutes in between submissions.'),true),
 
 		),
 
diff --git a/mod/admin.php b/mod/admin.php
index 3f1a69ca6..4b7cb3cd9 100644
--- a/mod/admin.php
+++ b/mod/admin.php
@@ -395,9 +395,10 @@ function admin_page_site(&$a) {
 	}
 
 	/* Banner */
+
 	$banner = get_config('system', 'banner');
-	if($banner == false) 
-		$banner = 'red';
+	if($banner === false) 
+		$banner = get_config('system','sitename');
 
 	$banner = htmlspecialchars($banner);
 
diff --git a/mod/item.php b/mod/item.php
index b66d71797..1e39ca9c9 100644
--- a/mod/item.php
+++ b/mod/item.php
@@ -703,6 +703,10 @@ function item_post(&$a) {
 		$plink = z_root() . '/channel/' . $channel['channel_address'] . '/?f=&mid=' . $mid;
 	}
 	
+
+
+
+
 	$datarray['aid']            = $channel['channel_account_id'];
 	$datarray['uid']            = $profile_uid;
 	
@@ -781,6 +785,22 @@ function item_post(&$a) {
 	if($orig_post)
 		$datarray['edit'] = true;
 
+
+
+	if(feature_enabled($profile_uid,'suppress_duplicates')) {
+
+		$z = q("select created from item where uid = %d and body = '%s'",
+			intval($profile_uid),
+			dbesc($body)
+		);
+
+		if($z && $z[0]['created'] > datetime_convert('UTC','UTC', 'now - 2 minutes')) {
+			$datarray['cancel'] = 1;
+			notice( t('Duplicate post suppressed.') . EOL);
+			logger('Duplicate post. Faking plugin cancel.');
+		}
+	}
+
 	call_hooks('post_local',$datarray);
 
 	if(x($datarray,'cancel')) {
-- 
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