/*<br/> * sgerror.php<br/> *<br/> * part of pfSense (https://www.pfsense.org)<br/> * Copyright (c) 2017-2021 Rubicon Communications, LLC (Netgate)<br/> * Copyright (c) 2006-2011 Serg Dvoriancev<br/> * All rights reserved.<br/> *<br/> * Licensed under the Apache License, Version 2.0 (the "License");<br/> * you may not use this file except in compliance with the License.<br/> * You may obtain a copy of the License at<br/> *<br/> * http://www.apache.org/licenses/LICENSE-2.0<br/> *<br/> * Unless required by applicable law or agreed to in writing, software<br/> * distributed under the License is distributed on an "AS IS" BASIS,<br/> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<br/> * See the License for the specific language governing permissions and<br/> * limitations under the License.<br/> */<br/><br/>----------------------------------------------------------------------------------------------------------------------<br/>SquidGuard error page generator<br/>----------------------------------------------------------------------------------------------------------------------<br/>This program processes redirection requests to specified URL or generated error page for a standard HTTP error code.<br/>Redirection supports HTTP and HTTPS protocols.<br/>----------------------------------------------------------------------------------------------------------------------<br/>Format:<br/>	sgerror.php?url=[http://myurl]or[https://myurl]or[error_code[space_code]output-message][incoming SquidGuard variables]<br/>Incoming SquidGuard variables:<br/>	a=client_address<br/>	n=client_name<br/>	i=client_user<br/>	s=client_group<br/>	t=target_group<br/>	u=client_url<br/>Example:<br/>	sgerror.php?url=http://myurl.com&a=..&n=..&i=..&s=..&t=..&u=..<br/>	sgerror.php?url=https://myurl.com&a=..&n=..&i=..&s=..&t=..&u=..<br/>	sgerror.php?url=404%20output-message&a=..&n=..&i=..&s=..&t=..&u=..<br/>----------------------------------------------------------------------------------------------------------------------<br/>Tags:<br/>	myurl and output messages can include Tags<br/>		[a] - client address<br/>		[n] - client name<br/>		[i] - client user<br/>		[s] - client group<br/>		[t] - target group<br/>		[u] - client url<br/>Example:<br/>	sgerror.php?url=401 Unauthorized access to URL [u] for client [n]<br/>	sgerror.php?url=http://my_error_page.php?cladr=%5Ba%5D&clname=%5Bn%5D // %5b=[ %d=]<br/>----------------------------------------------------------------------------------------------------------------------<br/>Special Tags:<br/>	blank     - get blank page<br/>	blank_img - get one-pixel transparent image (to replace images such as banners, ads, etc.)<br/>Example:<br/>	sgerror.php?url=blank<br/>	sgerror.php?url=blank_img<br/>----------------------------------------------------------------------------------------------------------------------	<br/>
	<table>
		<tr><th><b>HTTP error codes (ERROR_CODE):</b></th></tr>
				<tr><td>301 Moved Permanently</td></tr>
				<tr><td>302 Found</td></tr>
				<tr><td>303 See Other</td></tr>
				<tr><td>305 Use Proxy</td></tr>
				<tr><td>400 Bad Request</td></tr>
				<tr><td>401 Unauthorized</td></tr>
				<tr><td>402 Payment Required</td></tr>
				<tr><td>403 Forbidden</td></tr>
				<tr><td>404 Not Found</td></tr>
				<tr><td>405 Method Not Allowed</td></tr>
				<tr><td>406 Not Acceptable</td></tr>
				<tr><td>407 Proxy Authentication Required</td></tr>
				<tr><td>408 Request Time-out</td></tr>
				<tr><td>409 Conflict</td></tr>
				<tr><td>410 Gone</td></tr>
				<tr><td>411 Length Required</td></tr>
				<tr><td>412 Precondition Failed</td></tr>
				<tr><td>413 Request Entity Too Large</td></tr>
				<tr><td>414 Request-URI Too Large</td></tr>
				<tr><td>415 Unsupported Media Type</td></tr>
				<tr><td>416 Requested range not satisfiable</td></tr>
				<tr><td>417 Expectation Failed</td></tr>
				<tr><td>500 Internal Server Error</td></tr>
				<tr><td>501 Not Implemented</td></tr>
				<tr><td>502 Bad Gateway</td></tr>
				<tr><td>503 Service Unavailable</td></tr>
				<tr><td>504 Gateway Time-out</td></tr>
				<tr><td>505 HTTP Version not supported</td></tr>
			</table>
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	<body>
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