backend infrastructure for 'channel protection password'; which will be used to optionally encrypt export files and resolve channel/identity ownership/hijacking disputes

6 files changed, 24 insertions, 5 deletions

diff --git a/boot.php b/boot.php
index 52b1113c1..60779928d 100755
--- a/boot.php
+++ b/boot.php
@@ -52,7 +52,7 @@ define ( 'PLATFORM_NAME',           'hubzilla' );
 define ( 'STD_VERSION',             '2.3.3' );
 define ( 'ZOT_REVISION',            '1.2' );
 
-define ( 'DB_UPDATE_VERSION',       1188  );
+define ( 'DB_UPDATE_VERSION',       1189  );
 
 define ( 'PROJECT_BASE',   __DIR__ );
 
diff --git a/include/channel.php b/include/channel.php
index 1bdd5a478..0a4c9009a 100644
--- a/include/channel.php
+++ b/include/channel.php
@@ -537,6 +537,8 @@ function identity_basic_export($channel_id, $sections = null) {
 		$ret['relocate'] = [ 'channel_address' => $r[0]['channel_address'], 'url' => z_root()];
 		if(in_array('channel',$sections)) {
 			$ret['channel'] = $r[0];
+			unset($ret['channel']['channel_password']);
+			unset($ret['channel']['channel_salt']);
 		}
 	}
 
@@ -2020,7 +2022,9 @@ function channel_store_lowlevel($arr) {
 		'channel_deny_gid'        => ((array_key_exists('channel_deny_gid',$arr))        ? $arr['channel_deny_gid']        : ''),
 		'channel_removed'         => ((array_key_exists('channel_removed',$arr))         ? $arr['channel_removed']         : '0'),
 		'channel_system'          => ((array_key_exists('channel_system',$arr))          ? $arr['channel_system']          : '0'),
-		'channel_moved'           => ((array_key_exists('channel_moved',$arr))           ? $arr['channel_moved']           : '')
+		'channel_moved'           => ((array_key_exists('channel_moved',$arr))           ? $arr['channel_moved']           : ''),
+		'channel_password'        => ((array_key_exists('channel_password',$arr))        ? $arr['channel_password']        : ''),
+		'channel_salt'            => ((array_key_exists('channel_salt',$arr))            ? $arr['channel_salt']            : '')
 	];
 
 	return create_table_from_array('channel',$store);
diff --git a/include/import.php b/include/import.php
index 9007dbe74..224bb1803 100644
--- a/include/import.php
+++ b/include/import.php
@@ -82,7 +82,7 @@ function import_channel($channel, $account_id, $seize) {
 		'channel_r_storage',  'channel_r_pages',     'channel_w_stream',  'channel_w_wall',
 		'channel_w_comment',  'channel_w_mail',      'channel_w_like',    'channel_w_tagwall',
 		'channel_w_chat',     'channel_w_storage',   'channel_w_pages',   'channel_a_republish',
-		'channel_a_delegate', 'perm_limits'
+		'channel_a_delegate', 'perm_limits',         'channel_password',  'channel_salt'
 	];
 
 	$clean = array();
diff --git a/install/schema_mysql.sql b/install/schema_mysql.sql
index be5317722..e075006e1 100644
--- a/install/schema_mysql.sql
+++ b/install/schema_mysql.sql
@@ -287,6 +287,8 @@ CREATE TABLE IF NOT EXISTS `channel` (
   `channel_removed` tinyint(1) NOT NULL DEFAULT '0',
   `channel_system` tinyint(1) NOT NULL DEFAULT '0',
   `channel_moved` char(255) NOT NULL DEFAULT '',
+  `channel_password` varchar(255) NOT NULL,
+  `channel_salt` varchar(255) NOT NULL,
   PRIMARY KEY (`channel_id`),
   UNIQUE KEY `channel_address_unique` (`channel_address`),
   KEY `channel_account_id` (`channel_account_id`),
diff --git a/install/schema_postgres.sql b/install/schema_postgres.sql
index e78425828..1a5fe942f 100644
--- a/install/schema_postgres.sql
+++ b/install/schema_postgres.sql
@@ -170,7 +170,7 @@ CREATE TABLE "attach" (
   "is_photo" smallint NOT NULL DEFAULT '0',
   "os_storage" smallint NOT NULL DEFAULT '0',
   "os_path" text NOT NULL,
-  "display_path" text NOT NULL,
+4  "display_path" text NOT NULL,
   "content" bytea NOT NULL,
   "created" timestamp NOT NULL DEFAULT '0001-01-01 00:00:00',
   "edited" timestamp NOT NULL DEFAULT '0001-01-01 00:00:00',
@@ -280,6 +280,8 @@ CREATE TABLE "channel" (
   "channel_removed" smallint NOT NULL DEFAULT '0',
   "channel_system" smallint NOT NULL DEFAULT '0',
   "channel_moved" text NOT NULL DEFAULT '',
+  "channel_password" varchar(255) NOT NULL,
+  "channel_salt" varchar(255) NOT NULL,
   PRIMARY KEY ("channel_id"),
   UNIQUE ("channel_address")
 );
diff --git a/install/update.php b/install/update.php
index dd3a42c78..b37af9cef 100644
--- a/install/update.php
+++ b/install/update.php
@@ -1,6 +1,6 @@
 <?php
 
-define( 'UPDATE_VERSION' , 1188 );
+define( 'UPDATE_VERSION' , 1189 );
 
 /**
  *
@@ -2510,3 +2510,14 @@ function update_r1187() {
 
 }
 
+function update_r1188() {
+
+	$r1 = q("alter table channel add channel_password varchar(255) not null ");
+	$r2 = q("alter table channel add channel_salt varchar(255) not null ");
+
+	if($r1 && $r2)
+		return UPDATE_SUCCESS;
+	return UPDATE_FAILED;
+
+}
+