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Escaping Distinguished Name
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!!! Overview
[{$pagename}]s is described in [RFC 4514]
Generally, depending on the [LDAP Client] and the [context], [{$pagename}] is required for the following characters:
* SPACE (' ') (U+0020)
* DQUOTE (") (U+0022)
* SHARP (#) (U+0023)
* PLUS (+) (U+002B)
* COMMA (,) (U+002C)
* SEMI (;) (U+003B)
* LANGLE (<) (U+003C)
* EQUALS (=) (U+003D)
* RANGLE (>) (U+003E)
* backslash (\) (U+005C)
Any of the above "special characters" can be escaped in an [Attribute Value]. To escape these special characters or other characters in an [Attribute Value] in a [DN] string, use the methods below.
!! Preferred method
This is preferred method as it appears to be the most reliable across [LDAP Client] implementations. If a character to be escaped is one of the special characters, precede it by a backslash ('\' [ASCII] 92). This [example] shows a method of escaping a comma in an organization name:
{{{
CN=L. Eagle,O=Sue\, Grabbit and Runn,C=GB
}}}
This is the preferred method.
!! Replace with backslash and two [hex] digits
Replace the character to be escaped by a backslash and two [hex] digits, which form a single [byte] in the code of the character. The code of the character must be in [UTF-8] code set.
{{{
CN=L. Eagle,O=Sue\2C Grabbit and Runn,C=GB
}}}
!! Surround with "DQUOTE"
Surround the entire attribute value by "" (quotation marks) ([ASCII] 34), that are not part of the value. Between the quotation character pair, all characters are taken as is, except for the \ (backslash).
The \ (backslash) can be used to escape a backslash ([ASCII] 92) or quotation marks ([ASCII] 34), any of the special characters previously mentioned, or hex pairs as in method 2.
For example, to escape the quotation marks in cn=xyz"qrs"abc, it becomes cn=xyz\"qrs\"abc or to escape a \:
"you need to escape a single backslash this way \\"
Another example, "\Zoo" is illegal, because 'Z' cannot be escaped in this context.
!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]
----
* [#1] - [Characters to Escape|https://www.rlmueller.net/CharactersEscaped.htm|target='_blank'] - based on information obtained 2020-02-16
This page (revision-1) was last changed on 29-Nov-2024 16:16 by UnknownAuthorTop