nl.basjes.parse.httpdlog

Class Utils

java.lang.Object

nl.basjes.parse.httpdlog.Utils

public final class Utils
extends Object

Method Summary

Methods

Modifier and Type	Method and Description
static String	decodeApacheHTTPDLogValue(String input) Decoder for this specification: http://httpd.apache.org/docs/current/mod/mod_log_config.html#formats Format Notes For security reasons, starting with version 2.0.46, non-printable and other special characters in %r, %i and %o are escaped using \xhh sequences, where hh stands for the hexadecimal representation of the raw byte.
static byte	hexCharsToByte(char c1, char c2)
static String	resilientUrlDecode(String input) The main goal of the resilientUrlDecode is to have a UrlDecode that keeps working even if the input is seriously flawed or even uses a rejected standard.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

resilientUrlDecode

public static String resilientUrlDecode(String input)

The main goal of the resilientUrlDecode is to have a UrlDecode that keeps working even if the input is seriously flawed or even uses a rejected standard.

Parameters:

input - the UrlEncoded input string

Returns:

Url decoded result string

hexCharsToByte

public static byte hexCharsToByte(char c1,
                  char c2)

decodeApacheHTTPDLogValue

public static String decodeApacheHTTPDLogValue(String input)

Decoder for this specification: http://httpd.apache.org/docs/current/mod/mod_log_config.html#formats Format Notes For security reasons, starting with version 2.0.46, non-printable and other special characters in %r, %i and %o are escaped using \xhh sequences, where hh stands for the hexadecimal representation of the raw byte. Exceptions from this rule are " and \, which are escaped by prepending a backslash, and all whitespace characters, which are written in their C-style notation (\n, \t, etc). Actual method in the original code: ap_escape_logitem https://github.com/apache/httpd/blob/trunk/server/util.c#L2001

Parameters:

input - The value as it was logged by the Apache HTTPD.

Returns:

The 'decoded' version of the logged value.