acp_attachments.php

这些都是我以前学习是用到的源码

				$template->assign_vars(array(
					'S_EXTENSIONS'			=> true,
					'ADD_EXTENSION'			=> (isset($add_extension)) ? $add_extension : '',
					'GROUP_SELECT_OPTIONS'	=> (isset($_POST['add_extension_check'])) ? $this->group_select('add_group_select', $add_extension_group, 'extension_group') : $this->group_select('add_group_select', false, 'extension_group'))
				);

				$sql = 'SELECT * 
					FROM ' . EXTENSIONS_TABLE . ' 
					ORDER BY group_id, extension';
				$result = $db->sql_query($sql);

				if ($row = $db->sql_fetchrow($result))
				{
					$old_group_id = $row['group_id'];
					do
					{
						$s_spacer = false;

						$current_group_id = $row['group_id'];
						if ($old_group_id != $current_group_id)
						{
							$s_spacer = true;
							$old_group_id = $current_group_id;
						}

						$template->assign_block_vars('extensions', array(
							'S_SPACER'		=> $s_spacer,
							'EXTENSION_ID'	=> $row['extension_id'],
							'EXTENSION'		=> $row['extension'],
							'GROUP_OPTIONS'	=> $this->group_select('group_select[]', $row['group_id']))
						);
					}
					while ($row = $db->sql_fetchrow($result));
				}
				$db->sql_freeresult($result);

			break;

			case 'ext_groups':

				$template->assign_var('S_EXTENSION_GROUPS', true);

				if ($submit)
				{
					$action = request_var('action', '');
					$group_id = request_var('g', 0);

					if ($action != 'add' && $action != 'edit')
					{
						trigger_error('NO_MODE', E_USER_ERROR);
					}

					if (!$group_id && $action == 'edit')
					{
						trigger_error($user->lang['NO_EXT_GROUP_SPECIFIED'] . adm_back_link($this->u_action), E_USER_WARNING);
					}

					if ($group_id)
					{
						$sql = 'SELECT * FROM ' . EXTENSION_GROUPS_TABLE . "
							WHERE group_id = $group_id";
						$result = $db->sql_query($sql);
						$ext_row = $db->sql_fetchrow($result);
						$db->sql_freeresult($result);
					}
					else
					{
						$ext_row = array();
					}

					$group_name = request_var('group_name', '', true);
					$new_group_name = ($action == 'add') ? $group_name : (($ext_row['group_name'] != $group_name) ? $group_name : '');

					if (!$group_name)
					{
						$error[] = $user->lang['NO_EXT_GROUP_NAME'];
					}

					// Check New Group Name
					if ($new_group_name)
					{
						$sql = 'SELECT group_id 
							FROM ' . EXTENSION_GROUPS_TABLE . "
							WHERE LOWER(group_name) = '" . $db->sql_escape(utf8_strtolower($new_group_name)) . "'";
						$result = $db->sql_query($sql);

						if ($db->sql_fetchrow($result))
						{
							$error[] = sprintf($user->lang['EXTENSION_GROUP_EXIST'], $new_group_name);
						}
						$db->sql_freeresult($result);
					}

					if (!sizeof($error))
					{
						// Ok, build the update/insert array
						$upload_icon	= request_var('upload_icon', 'no_image');
						$size_select	= request_var('size_select', 'b');
						$forum_select	= request_var('forum_select', false);
						$allowed_forums	= isset($_POST['allowed_forums']) ? array_map('intval', array_values($_POST['allowed_forums'])) : array();
						$allow_in_pm	= isset($_POST['allow_in_pm']) ? true : false;
						$max_filesize	= request_var('max_filesize', 0);
						$max_filesize	= ($size_select == 'kb') ? round($max_filesize * 1024) : (($size_select == 'mb') ? round($max_filesize * 1048576) : $max_filesize);
						$allow_group	= (isset($_POST['allow_group'])) ? 1 : 0;

						if ($max_filesize == $config['max_filesize'])
						{
							$max_filesize = 0;
						}

						if (!sizeof($allowed_forums))
						{
							$forum_select = false;
						}

						$group_ary = array(
							'group_name'	=> $group_name,
							'cat_id'		=> request_var('special_category', ATTACHMENT_CATEGORY_NONE),
							'allow_group'	=> $allow_group,
							'download_mode'	=> request_var('download_mode', INLINE_LINK),
							'upload_icon'	=> ($upload_icon == 'no_image') ? '' : $upload_icon,
							'max_filesize'	=> $max_filesize,
							'allowed_forums'=> ($forum_select) ? serialize($allowed_forums) : '',
							'allow_in_pm'	=> ($allow_in_pm) ? 1 : 0
						);

						$sql = ($action == 'add') ? 'INSERT INTO ' . EXTENSION_GROUPS_TABLE . ' ' : 'UPDATE ' . EXTENSION_GROUPS_TABLE . ' SET ';
						$sql .= $db->sql_build_array((($action == 'add') ? 'INSERT' : 'UPDATE'), $group_ary);
						$sql .= ($action == 'edit') ? " WHERE group_id = $group_id" : '';

						$db->sql_query($sql);

						if ($action == 'add')
						{
							$group_id = $db->sql_nextid();
						}

						add_log('admin', 'LOG_ATTACH_EXTGROUP_' . strtoupper($action), $group_name);
					}

					$extension_list = isset($_REQUEST['extensions']) ? array_map('intval', array_values($_REQUEST['extensions'])) : array();

					if ($action == 'edit' && sizeof($extension_list))
					{
						$sql = 'UPDATE ' . EXTENSIONS_TABLE . "
							SET group_id = 0
							WHERE group_id = $group_id";
						$db->sql_query($sql);
					}

					if (sizeof($extension_list))
					{
						$sql = 'UPDATE ' . EXTENSIONS_TABLE . " 
							SET group_id = $group_id
							WHERE " . $db->sql_in_set('extension_id', $extension_list);
						$db->sql_query($sql);
					}

					$this->rewrite_extensions();

					if (!sizeof($error))
					{
						$notify[] = $user->lang['SUCCESS_EXTENSION_GROUP_' . strtoupper($action)];
					}
				}
			
				$cat_lang = array(
					ATTACHMENT_CATEGORY_NONE		=> $user->lang['NO_FILE_CAT'],
					ATTACHMENT_CATEGORY_IMAGE		=> $user->lang['CAT_IMAGES'],
					ATTACHMENT_CATEGORY_WM			=> $user->lang['CAT_WM_FILES'],
					ATTACHMENT_CATEGORY_RM			=> $user->lang['CAT_RM_FILES'],
					ATTACHMENT_CATEGORY_FLASH		=> $user->lang['CAT_FLASH_FILES'],
					ATTACHMENT_CATEGORY_QUICKTIME	=> $user->lang['CAT_QUICKTIME_FILES'],
				);

				$group_id = request_var('g', 0);
				$action = (isset($_POST['add'])) ? 'add' : $action;

				switch ($action)
				{
					case 'delete':

						if (confirm_box(true))
						{
							$sql = 'SELECT group_name 
								FROM ' . EXTENSION_GROUPS_TABLE . "
								WHERE group_id = $group_id";
							$result = $db->sql_query($sql);
							$group_name = (string) $db->sql_fetchfield('group_name');
							$db->sql_freeresult($result);

							$sql = 'DELETE 
								FROM ' . EXTENSION_GROUPS_TABLE . " 
								WHERE group_id = $group_id";
							$db->sql_query($sql);

							// Set corresponding Extensions to a pending Group
							$sql = 'UPDATE ' . EXTENSIONS_TABLE . "
								SET group_id = 0
								WHERE group_id = $group_id";
							$db->sql_query($sql);
					
							add_log('admin', 'LOG_ATTACH_EXTGROUP_DEL', $group_name);

							$this->rewrite_extensions();

							trigger_error($user->lang['EXTENSION_GROUP_DELETED'] . adm_back_link($this->u_action));
						}
						else
						{
							confirm_box(false, $user->lang['CONFIRM_OPERATION'], build_hidden_fields(array(
								'i'			=> $id,
								'mode'		=> $mode,
								'action'	=> $action,
								'group_id'	=> $group_id,
								'action'	=> 'delete',
							)));
						}

					break;

					case 'edit':
					
						if (!$group_id)
						{
							trigger_error($user->lang['NO_EXT_GROUP_SPECIFIED'] . adm_back_link($this->u_action), E_USER_WARNING);
						}

						$sql = 'SELECT *
							FROM ' . EXTENSION_GROUPS_TABLE . "
							WHERE group_id = $group_id";
						$result = $db->sql_query($sql);
						$ext_group_row = $db->sql_fetchrow($result);
						$db->sql_freeresult($result);

						$forum_ids = (!$ext_group_row['allowed_forums']) ? array() : unserialize(trim($ext_group_row['allowed_forums']));

					// no break;

					case 'add':
						
						if ($action == 'add')
						{
							$ext_group_row = array(
								'group_name'	=> request_var('group_name', '', true),
								'cat_id'		=> 0,
								'allow_group'	=> 1,
								'allow_in_pm'	=> 1,
								'download_mode'	=> 1,
								'upload_icon'	=> '',
								'max_filesize'	=> 0,
							);
							
							$forum_ids = array();
						}

						$extensions = array();

						$sql = 'SELECT *
							FROM ' . EXTENSIONS_TABLE . "
							WHERE group_id = $group_id
								OR group_id = 0
							ORDER BY extension";
						$result = $db->sql_query($sql);
						$extensions = $db->sql_fetchrowset($result);
						$db->sql_freeresult($result);

						if ($ext_group_row['max_filesize'] == 0)
						{
							$ext_group_row['max_filesize'] = (int) $config['max_filesize'];
						}

						$size_format = ($ext_group_row['max_filesize'] >= 1048576) ? 'mb' : (($ext_group_row['max_filesize'] >= 1024) ? 'kb' : 'b');

						$ext_group_row['max_filesize'] = ($ext_group_row['max_filesize'] >= 1048576) ? round($ext_group_row['max_filesize'] / 1048576 * 100) / 100 : (($ext_group_row['max_filesize'] >= 1024) ? round($ext_group_row['max_filesize'] / 1024 * 100) / 100 : $ext_group_row['max_filesize']);

						$img_path = $config['upload_icons_path'];

						$filename_list = '';
						$no_image_select = false;

						$imglist = filelist($phpbb_root_path . $img_path);

						if (sizeof($imglist))
						{
							$imglist = array_values($imglist);
							$imglist = $imglist[0];

							foreach ($imglist as $key => $img)
							{
								if (!$ext_group_row['upload_icon'])
								{
									$no_image_select = true;
									$selected = '';
								}
								else
								{
									$selected = ($ext_group_row['upload_icon'] == $img) ? ' selected="selected"' : '';
								}

								$filename_list .= '<option value="' . htmlspecialchars($img) . '"' . $selected . '>' . htmlspecialchars($img) . '</option>';
							}
						}

						$i = 0;
						$assigned_extensions = '';
						foreach ($extensions as $num => $row)
						{
							if ($row['group_id'] == $group_id && $group_id)
							{
								$assigned_extensions .= ($i) ? ', ' . $row['extension'] : $row['extension'];
								$i++;
							}
						}

						$s_extension_options = '';
						foreach ($extensions as $row)
						{
							$s_extension_options .= '<option' . ((!$row['group_id']) ? ' class="disabled"' : '') . ' value="' . $row['extension_id'] . '"' . (($row['group_id'] == $group_id && $group_id) ? ' selected="selected"' : '') . '>' . $row['extension'] . '</option>';
						}

						$template->assign_vars(array(
							'PHPBB_ROOT_PATH'	=> $phpbb_root_path,
							'IMG_PATH'			=> $img_path,
							'ACTION'			=> $action,
							'GROUP_ID'			=> $group_id,
							'GROUP_NAME'		=> $ext_group_row['group_name'],
							'ALLOW_GROUP'		=> $ext_group_row['allow_group'],
							'ALLOW_IN_PM'		=> $ext_group_row['allow_in_pm'],
							'UPLOAD_ICON_SRC'	=> $phpbb_root_path . $img_path . '/' . $ext_group_row['upload_icon'],
							'EXTGROUP_FILESIZE'	=> $ext_group_row['max_filesize'],
							'ASSIGNED_EXTENSIONS'	=> $assigned_extensions,

							'S_CATEGORY_SELECT'			=> $this->category_select('special_category', $group_id, 'category'),
							'S_DOWNLOAD_SELECT'			=> $this->download_select('download_mode', $group_id, 'download_mode'),
							'S_EXT_GROUP_SIZE_OPTIONS'	=> size_select_options($size_format),
							'S_EXTENSION_OPTIONS'		=> $s_extension_options,
							'S_FILENAME_LIST'			=> $filename_list,
							'S_EDIT_GROUP'				=> true,
							'S_NO_IMAGE'				=> $no_image_select,
							'S_FORUM_IDS'				=> (sizeof($forum_ids)) ? true : false,

							'U_EXTENSIONS'		=> append_sid("{$phpbb_admin_path}index.$phpEx", "i=$id&amp;mode=extensions"),

							'L_LEGEND'			=> $user->lang[strtoupper($action) . '_EXTENSION_GROUP'],
							)
						);

						$s_forum_id_options = '';

						$sql = 'SELECT forum_id, forum_name, parent_id, forum_type, left_id, right_id
							FROM ' . FORUMS_TABLE . '
							ORDER BY left_id ASC';
						$result = $db->sql_query($sql, 600);

						$right = $cat_right = $padding_inc = 0;
						$padding = $forum_list = $holding = '';
						$padding_store = array('0' => '');
						while ($row = $db->sql_fetchrow($result))
						{
							if ($row['forum_type'] == FORUM_CAT && ($row['left_id'] + 1 == $row['right_id']))
							{
								// Non-postable forum with no subforums, don't display
								continue;
							}

							if (!$auth->acl_get('f_list', $row['forum_id']))
							{