Importing SMF IPv6 mod

jdarwood007 · Sep 28, 2011 · 36ad49f · 36ad49f
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diff --git a/LICENSE.txt b/LICENSE.txt
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+Copyright (c) 2011, SleePy (smf-mods-license@sleepycode.com)
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    * Neither the name of the <organization> nor the
+      names of its contributors may be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/README.txt b/README.txt
@@ -0,0 +1,18 @@
+IPv6 support for SMF 2.0+ Only.  I will not backport these changes to 1.1.
+
+This customization will add support for the IPv6 enabled clients in SMF 2.0.  Specifically posts, ip tracking and ban management have been changed.  Member search from the admin panel does support this by default.
+
+Due to the size and necessity of the changes, please do not continue with installation if any change should fail the test.  This may lead to unexpected results or a unusable forum.
+
+Note: During uninstallation, all IPv6 enabled bans will be disabled.  This customization makes attempts to track those changes in columns it adds to the ban_items table.  If you remove the database changes, this tracking will be lost.  In addition upon reinstallation this customization makes attempts to re-enable those bans that should still be active.
+
+Note: Currently you are unable to link via iurl/url or auto linking ipv6 urls.  This is due to the square brackets that ipv6 addresses are enclosed in.  However this doesn't affect domains.
+
+Thanks to [url=http://www.soucy.org]Ray Soucy[/url]'s for his IPv6 functions he wrote and allowing usage of them in this customization.
+
+This customization is released under the BSD 3-Clause license. The terms of the license are including in this package (LICENSE.txt) or available on Simple Machines website at http://www.simplemachines.org/about/smf/license.php.
+
+ChangeLog:
+
+Version 1.0
+! Release
diff --git a/database_install.php b/database_install.php
@@ -0,0 +1,108 @@
+<?php
+error_reporting(E_ALL);
+
+// Hopefully we have the goodies.
+if (file_exists(dirname(__FILE__) . '/SSI.php') && !defined('SMF'))
+{
+	$using_ssi = true;
+	require_once(dirname(__FILE__) . '/SSI.php');
+}
+elseif (!defined('SMF'))
+	exit('<b>Error:</b> Cannot install - please verify you put this in the same place as SMF\'s index.php.');
+
+global $db_prefix, $modSettings, $func, $smcFunc;
+
+// Fields to add
+$new_fields = array(
+	'is_ipv6' => array('name'=> 'is_ipv6', 'type'=>'SMALLINT(255)', 'unsigned' => true, 'default' => 0),
+	'ip_low5' => array('name'=> 'ip_low5', 'type'=>'SMALLINT(255)', 'unsigned' => true, 'default' => 0),
+	'ip_high5' => array('name'=> 'ip_high5', 'type'=>'SMALLINT(255)', 'unsigned' => true, 'default' => 0),
+	'ip_low6' => array('name'=> 'ip_low6', 'type'=>'SMALLINT(255)', 'unsigned' => true, 'default' => 0),
+	'ip_high6' => array('name'=> 'ip_high6', 'type'=>'SMALLINT(255)', 'unsigned' => true, 'default' => 0),
+	'ip_low7' => array('name'=> 'ip_low7', 'type'=>'SMALLINT(255)', 'unsigned' => true, 'default' => 0),
+	'ip_high7' => array('name'=> 'ip_high7', 'type'=>'SMALLINT(255)', 'unsigned' => true, 'default' => 0),
+	'ip_low8' => array('name'=> 'ip_low8', 'type'=>'SMALLINT(255)', 'unsigned' => true, 'default' => 0),
+	'ip_high8' => array('name'=> 'ip_high8', 'type'=>'SMALLINT(255)', 'unsigned' => true, 'default' => 0),
+);
+
+$changed_fields = array(
+	'ip_low1' => array('name'=> 'ip_low1', 'type'=>'SMALLINT(255)'),
+	'ip_high1' => array('name'=> 'ip_high1', 'type'=>'SMALLINT(255)'),
+	'ip_low2' => array('name'=> 'ip_low2', 'type'=>'SMALLINT(255)'),
+	'ip_high2' => array('name'=> 'ip_high2', 'type'=>'SMALLINT(255)'),
+	'ip_low3' => array('name'=> 'ip_low3', 'type'=>'SMALLINT(255)'),
+	'ip_high3' => array('name'=> 'ip_high3', 'type'=>'SMALLINT(255)'),
+	'ip_low4' => array('name'=> 'ip_low4', 'type'=>'SMALLINT(255)'),
+	'ip_high4' => array('name'=> 'ip_high4', 'type'=>'SMALLINT(255)'),
+);
+
+// Load up the board info, we will only add these once.
+$table_columns = $smcFunc['db_list_columns']($db_prefix . 'ban_items');
+
+// Do the loopy, loop, loe.
+foreach ($new_fields as $column_name => $column_attributes)
+	if (!in_array($column_name, $table_columns))
+		$smcFunc['db_add_column']($db_prefix . 'ban_items', $column_attributes);
+
+// Do the loopy, loop, loe.
+foreach ($changed_fields as $column_name => $column_attributes)
+	$smcFunc['db_change_column']($db_prefix . 'ban_items', $column_attributes);
+
+// Find any IPv6 bans and reenable them again.
+// !!! Note, We changed is_ipv6 to the time stamp of when it is supposed of expired, 1 if it was a perm ban.
+$result = $smcFunc['db_query']('', '
+	SELECT id_ban_group, is_ipv6
+	FROM {db_prefix}ban_items
+	WHERE is_ipv6 < {int:is_ipv6}',
+	array(
+		'is_ipv6' => '1'
+));
+
+$enabled_bans = array();
+$disabled_bans = array();
+$lost_bans = array();
+while ($row = $smcFunc['db_fetch_assoc']($request))
+{
+	if ($row['is_ipv6'] == 1)
+		$enabled_bans[] = $row['id_ban_group'];
+	elseif ($row['is_ipv6'] > 1 && time() < $row['is_ipv6'])
+		$enabled_bans[] = $row['id_ban_group'];
+	elseif ($row['is_ipv6'] > 1 && time() > $row['is_ipv6'])
+		$disabled_bans[] = $row['id_ban_group'];
+	// Where did you come from?
+	else
+		$lost_bans[] = $row['id_ban_group'];
+
+	// Not the best way, but will do the job.
+	$smcFunc['db_query']('', '
+		UPDATE {db_prefix}ban_groups
+		SET expire_time = {raw:expire}
+		WHERE id_ban_group = {int:ban_group}',
+		array(
+			'expire' => $row['is_ipv6'] == 1 ? 'NULL' : $row['is_ipv6'],
+			'ban_group' => $row['id_ban_group'],
+	));
+}		
+
+// Ok, We just re-enable these.
+$smcFunc['db_query']('', '
+	UPDATE {db_prefix}ban_items
+	SET is_ipv6 = {int:enabled}
+	WHERE is_ipv6 < {int:enabled}',
+	array(
+		'enabled' => '1',
+));
+
+// Handle our lost bans.
+if (!empty($lost_bans) && !empty($using_ssi))
+	echo 'We had some bans that we could not properly enable. Please check these ban ids:', implode(', ', $lost_bans), '<br />';
+
+// For debugging/support purposes.
+if (!empty($lost_bans))
+log_error('Lost bans during IPV6 re-enabling:', implode(', ', $lost_bans), 'critical');
+
+// Update our ban time, forcing rechecks to occur.
+updateSettings(array('banLastUpdated' => time()));
+
+if(!empty($using_ssi))
+	echo 'If no errors, Success!';
diff --git a/database_remove.php b/database_remove.php
@@ -0,0 +1,56 @@
+<?php
+error_reporting(E_ALL);
+
+// Hopefully we have the goodies.
+if (file_exists(dirname(__FILE__) . '/SSI.php') && !defined('SMF'))
+{
+	$using_ssi = true;
+	require_once(dirname(__FILE__) . '/SSI.php');
+}
+elseif (!defined('SMF'))
+	exit('<b>Error:</b> Cannot install - please verify you put this in the same place as SMF\'s index.php.');
+
+global $db_prefix, $modSettings, $func, $smcFunc;
+
+// Find any IPv6 bans.
+$result = $smcFunc['db_query']('', '
+	SELECT bi.id_ban_group, bi.is_ipv6, bg.expire_time
+	FROM {db_prefix}ban_items AS bi
+		INNER JOIN {db_prefix}ban_groups AS bg ON (bi.id_ban_group = bg.id_ban_group)
+	WHERE bi.is_ipv6 = {int:is_ipv6}',
+	array(
+		'is_ipv6' => '1'
+));
+
+$ipv6_bans = array();
+while($row = $smcFunc['db_fetch_assoc']($request))
+{
+	if ($row['expire_time'] != 'NULL')
+		$smcFunc['db_query']('', '
+			UPDATE {db_prefix}ban_items
+			SET is_ipv6 = {raw:expire_time}
+			WHERE id_ban_group = {int:ban_group}',
+			array(
+				'expire_time' => $row['expire_time'],
+				'ban_group' => $row['id_ban_group'],
+		));
+
+	$ipv6_bans[] = $row['id_ban_group'];
+}
+
+// Do a mass update to disable these bans.
+$smcFunc['db_query']('', '
+	UPDATE {db_prefix}ban_groups
+	SET expire_time = {int:expired_time}
+	WHERE id_ban_group IN ({array_int:bans})',
+	array(
+		'expired_time' => time() - 60, // 1 minute ago should do.
+		'bans' => $ipv6_bans
+));
+
+// Update our ban time, forcing rechecks to occur.
+updateSettings(array('banLastUpdated' => time()));
+
+if(!empty($using_ssi))
+	echo 'If no errors, Success!';
+?>