acp_attachments.php

这些都是我以前学习是用到的源码

		$types = array(
			INLINE_LINK		=> $user->lang['MODE_INLINE'],
			PHYSICAL_LINK	=> $user->lang['MODE_PHYSICAL']
		);
		
		if ($group_id)
		{
			$sql = "SELECT download_mode
				FROM " . EXTENSION_GROUPS_TABLE . "
				WHERE group_id = " . (int) $group_id;
			$result = $db->sql_query($sql);

			$download_mode = (!($row = $db->sql_fetchrow($result))) ? INLINE_LINK : $row['download_mode'];

			$db->sql_freeresult($result);
		}
		else
		{
			$download_mode = INLINE_LINK;
		}

		$group_select = '<select name="' . $select_name . '"' . (($key) ? ' id="' . $key . '"' : '') . '>';

		foreach ($types as $type => $mode)
		{
			$selected = ($type == $download_mode) ? ' selected="selected"' : '';
			$group_select .= '<option value="' . $type . '"' . $selected . '>' . $mode . '</option>';
		}

		$group_select .= '</select>';

		return $group_select;
	}

	/**
	* Search Imagick
	*/
	function search_imagemagick()
	{
		$imagick = '';

		$exe = ((defined('PHP_OS')) && (preg_match('#^win#i', PHP_OS))) ? '.exe' : '';

		$magic_home = getenv('MAGICK_HOME');

		if (empty($magic_home))
		{
			$locations = array('C:/WINDOWS/', 'C:/WINNT/', 'C:/WINDOWS/SYSTEM/', 'C:/WINNT/SYSTEM/', 'C:/WINDOWS/SYSTEM32/', 'C:/WINNT/SYSTEM32/', '/usr/bin/', '/usr/sbin/', '/usr/local/bin/', '/usr/local/sbin/', '/opt/', '/usr/imagemagick/', '/usr/bin/imagemagick/');
			$path_locations = str_replace('\\', '/', (explode(($exe) ? ';' : ':', getenv('PATH'))));	

			$locations = array_merge($path_locations, $locations);

			foreach ($locations as $location)
			{
				// The path might not end properly, fudge it
				if (substr($location, -1, 1) !== '/')
				{
					$location .= '/';
				}

				if (@is_readable($location . 'mogrify' . $exe) && @filesize($location . 'mogrify' . $exe) > 3000)
				{
					$imagick = str_replace('\\', '/', $location);
					continue;
				}
			}
		}
		else
		{
			$imagick = str_replace('\\', '/', $magic_home);
		}

		return $imagick;
	}

	/**
	* Test Settings
	*/
	function test_upload(&$error, $upload_dir, $create_directory = false)
	{
		global $user, $phpbb_root_path;

		// Does the target directory exist, is it a directory and writeable.
		if ($create_directory)
		{
			if (!file_exists($phpbb_root_path . $upload_dir))
			{
				@mkdir($phpbb_root_path . $upload_dir, 0777);
				@chmod($phpbb_root_path . $upload_dir, 0777);
			}
		}

		if (!file_exists($phpbb_root_path . $upload_dir))
		{
			$error[] = sprintf($user->lang['NO_UPLOAD_DIR'], $upload_dir);
			return;
		}

		if (!is_dir($phpbb_root_path . $upload_dir))
		{
			$error[] = sprintf($user->lang['UPLOAD_NOT_DIR'], $upload_dir);
			return;
		}

		if (!is_writable($phpbb_root_path . $upload_dir))
		{
			$error[] = sprintf($user->lang['NO_WRITE_UPLOAD'], $upload_dir);
			return;
		}
	}

	/**
	* Perform operations on sites for external linking
	*/
	function perform_site_list()
	{
		global $db, $user;

		if (isset($_REQUEST['securesubmit']))
		{
			// Grab the list of entries
			$ips = request_var('ips', '');
			$ip_list = array_unique(explode("\n", $ips));
			$ip_list_log = implode(', ', $ip_list);

			$ip_exclude = (!empty($_POST['ipexclude'])) ? 1 : 0;

			$iplist = array();
			$hostlist = array();

			foreach ($ip_list as $item)
			{
				if (preg_match('#^([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})[ ]*\-[ ]*([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})$#', trim($item), $ip_range_explode))
				{
					// Don't ask about all this, just don't ask ... !
					$ip_1_counter = $ip_range_explode[1];
					$ip_1_end = $ip_range_explode[5];

					while ($ip_1_counter <= $ip_1_end)
					{
						$ip_2_counter = ($ip_1_counter == $ip_range_explode[1]) ? $ip_range_explode[2] : 0;
						$ip_2_end = ($ip_1_counter < $ip_1_end) ? 254 : $ip_range_explode[6];

						if ($ip_2_counter == 0 && $ip_2_end == 254)
						{
							$ip_2_counter = 256;
							$ip_2_fragment = 256;

							$iplist[] = "'$ip_1_counter.*'";
						}

						while ($ip_2_counter <= $ip_2_end)
						{
							$ip_3_counter = ($ip_2_counter == $ip_range_explode[2] && $ip_1_counter == $ip_range_explode[1]) ? $ip_range_explode[3] : 0;
							$ip_3_end = ($ip_2_counter < $ip_2_end || $ip_1_counter < $ip_1_end) ? 254 : $ip_range_explode[7];

							if ($ip_3_counter == 0 && $ip_3_end == 254)
							{
								$ip_3_counter = 256;
								$ip_3_fragment = 256;

								$iplist[] = "'$ip_1_counter.$ip_2_counter.*'";
							}

							while ($ip_3_counter <= $ip_3_end)
							{
								$ip_4_counter = ($ip_3_counter == $ip_range_explode[3] && $ip_2_counter == $ip_range_explode[2] && $ip_1_counter == $ip_range_explode[1]) ? $ip_range_explode[4] : 0;
								$ip_4_end = ($ip_3_counter < $ip_3_end || $ip_2_counter < $ip_2_end) ? 254 : $ip_range_explode[8];

								if ($ip_4_counter == 0 && $ip_4_end == 254)
								{
									$ip_4_counter = 256;
									$ip_4_fragment = 256;

									$iplist[] = "'$ip_1_counter.$ip_2_counter.$ip_3_counter.*'";
								}

								while ($ip_4_counter <= $ip_4_end)
								{
									$iplist[] = "'$ip_1_counter.$ip_2_counter.$ip_3_counter.$ip_4_counter'";
									$ip_4_counter++;
								}
								$ip_3_counter++;
							}
							$ip_2_counter++;
						}
						$ip_1_counter++;
					}
				}
				else if (preg_match('#^([0-9]{1,3})\.([0-9\*]{1,3})\.([0-9\*]{1,3})\.([0-9\*]{1,3})$#', trim($item)) || preg_match('#^[a-f0-9:]+\*?$#i', trim($item)))
				{
					$iplist[] = "'" . trim($item) . "'";
				}
				else if (preg_match('#^([\w\-_]\.?){2,}$#is', trim($item)))
				{
					$hostlist[] = "'" . trim($item) . "'";
				}
				else if (preg_match("#^([a-z0-9\-\*\._/]+?)$#is", trim($item)))
				{
					$hostlist[] = "'" . trim($item) . "'";
				}
			}

			$sql = 'SELECT site_ip, site_hostname
				FROM ' . SITELIST_TABLE . "
				WHERE ip_exclude = $ip_exclude";
			$result = $db->sql_query($sql);

			if ($row = $db->sql_fetchrow($result))
			{
				$iplist_tmp = array();
				$hostlist_tmp = array();
				do
				{
					if ($row['site_ip'])
					{
						$iplist_tmp[] = "'" . $row['site_ip'] . "'";
					}
					else if ($row['site_hostname'])
					{
						$hostlist_tmp[] = "'" . $row['site_hostname'] . "'";
					}
					// break;
				}
				while ($row = $db->sql_fetchrow($result));

				$iplist = array_unique(array_diff($iplist, $iplist_tmp));
				$hostlist = array_unique(array_diff($hostlist, $hostlist_tmp));
				unset($iplist_tmp);
				unset($hostlist_tmp);
			}
			$db->sql_freeresult($result);

			if (sizeof($iplist))
			{
				foreach ($iplist as $ip_entry)
				{
					$sql = 'INSERT INTO ' . SITELIST_TABLE . " (site_ip, ip_exclude)
						VALUES ($ip_entry, $ip_exclude)";
					$db->sql_query($sql);
				}
			}

			if (sizeof($hostlist))
			{
				foreach ($hostlist as $host_entry)
				{
					$sql = 'INSERT INTO ' . SITELIST_TABLE . " (site_hostname, ip_exclude)
						VALUES ($host_entry, $ip_exclude)";
					$db->sql_query($sql);
				}
			}
			
			if (!empty($ip_list_log))
			{
				// Update log
				$log_entry = ($ip_exclude) ? 'LOG_DOWNLOAD_EXCLUDE_IP' : 'LOG_DOWNLOAD_IP';
				add_log('admin', $log_entry, $ip_list_log);
			}

			trigger_error($user->lang['SECURE_DOWNLOAD_UPDATE_SUCCESS'] . adm_back_link($this->u_action));
		}
		else if (isset($_POST['unsecuresubmit']))
		{
			$unip_sql = array_map('intval', $_POST['unip']);

			if (sizeof($unip_sql))
			{
				$l_unip_list = '';

				// Grab details of ips for logging information later
				$sql = 'SELECT site_ip, site_hostname
					FROM ' . SITELIST_TABLE . '
					WHERE ' . $db->sql_in_set('site_id', $unip_sql);
				$result = $db->sql_query($sql);

				while ($row = $db->sql_fetchrow($result))
				{
					$l_unip_list .= (($l_unip_list != '') ? ', ' : '') . (($row['site_ip']) ? $row['site_ip'] : $row['site_hostname']);
				}
				$db->sql_freeresult($result);

				$sql = 'DELETE FROM ' . SITELIST_TABLE . '
					WHERE ' . $db->sql_in_set('site_id', $unip_sql);
				$db->sql_query($sql);

				add_log('admin', 'LOG_DOWNLOAD_REMOVE_IP', $l_unip_list);
			}

			trigger_error($user->lang['SECURE_DOWNLOAD_UPDATE_SUCCESS'] . adm_back_link($this->u_action));
		}
	}

	/**
	* Re-Write extensions cache file
	*/
	function rewrite_extensions()
	{
		global $db, $cache;

		$sql = 'SELECT e.extension, g.*
			FROM ' . EXTENSIONS_TABLE . ' e, ' . EXTENSION_GROUPS_TABLE . ' g
			WHERE e.group_id = g.group_id
				AND g.allow_group = 1';
		$result = $db->sql_query($sql);

		$extensions = array();
		while ($row = $db->sql_fetchrow($result))
		{
			$extension = $row['extension'];

			$extensions[$extension]['display_cat']	= (int) $row['cat_id'];
			$extensions[$extension]['download_mode']= (int) $row['download_mode'];
			$extensions[$extension]['upload_icon']	= (string) $row['upload_icon'];
			$extensions[$extension]['max_filesize']	= (int) $row['max_filesize'];

			$allowed_forums = ($row['allowed_forums']) ? unserialize(trim($row['allowed_forums'])) : array();

			if ($row['allow_in_pm'])
			{
				$allowed_forums = array_merge($allowed_forums, array(0));
			}

			// Store allowed extensions forum wise
			$extensions['_allowed_'][$extension] = (!sizeof($allowed_forums)) ? 0 : $allowed_forums;
		}
		$db->sql_freeresult($result);

		$cache->destroy('_extensions');
		$cache->put('_extensions', $extensions);
	}

	/**
	* Write display_order config field
	*/
	function display_order($value, $key = '')
	{
		$radio_ary = array(0 => 'DESCENDING', 1 => 'ASCENDING');

		return h_radio('config[display_order]', $radio_ary, $value, $key);
	}

	/**
	* Adjust all three max_filesize config vars for display
	*/
	function max_filesize($value, $key = '')
	{
		// Determine size var and adjust the value accordingly
		$size_var = ($value >= 1048576) ? 'mb' : (($value >= 1024) ? 'kb' : 'b');
		$value = ($value >= 1048576) ? round($value / 1048576 * 100) / 100 : (($value >= 1024) ? round($value / 1024 * 100) / 100 : $value);

		return '<input type="text" id="' . $key . '" size="8" maxlength="15" name="config[' . $key . ']" value="' . $value . '" /> <select name="' . $key . '">' . size_select_options($size_var) . '</select>';
	}

	/**
	* Write secure_allow_deny config field
	*/
	function select_allow_deny($value, $key = '')
	{
		$radio_ary = array(1 => 'ORDER_ALLOW_DENY', 0 => 'ORDER_DENY_ALLOW');

		return h_radio('config[' . $key . ']', $radio_ary, $value, $key);
	}

}

?>