What is the range of characters allowed in the password.client file in Exim4?
My password has the :, ! and . characters. Are these permitted as is? If not, how do I escape them?
Related
I am using sed to replace a placeholder in a script with my public ssh key. The character / is definitely present in some SSH keys, how can I find out which character I can use as delimiter for sed?
I am looking for an answer of either the set of all characters that can be part of the string generated by ssh-keygen, or which characters are guaranteed not to.
The public key in opnessh format is base64-encoded as mentioned for example in the manual page for sshd. Therefore you can use any character that is not in the list of base64 characters. The / is there but for example | can be used safely (though in the comment section can be anything).
For information, from the info sed, section 3.5:
The '/' characters may be uniformly replaced by any other single character within any given 's' command.
The '/' character (or whatever other character is used in its stead) can
appear in the REGEXP or REPLACEMENT only if it is preceded by a '\'
character.
So you can chose any suitable character that doesn't appear in your input data.
This is related to
What are the characters that count as the same character under collation of UTF8 Unicode? And what VB.net function can be used to merge them?
This is how I plan to do this:
Use http://msdn.microsoft.com/en-us/library/dd374126%28v=vs.85%29.aspx to turn the string into
KD form.
Basically it'll turn most variation such as superscript into the normal number. Also it decompose tilda and accent into 2 characters.
Next step would be to remove all characters whose sole purpose is tildaing or accenting character.
How do I know which characters are like that? Which characters are just "composing characters"
How do I find such characters? After I find those, how do I get rid of it? Should I scan character by character and remove all such "combining characters?"
For example:
Character from 300 to 362 can be gotten rid off.
Then what?
Combining characters are listed in UnicodeData.txt as having a nonzero Canonical_Combining_Class, and a General_Category of Mn (Mark, nonspacing).
For each character in the string, call GetUnicodeCategory and check the UnicodeCategory for NonSpacingMark, SpacingCombiningMark or EnclosingMark.
You may be able to do it more efficiently using regex, eg Regex.Replace(str, "\p{M}", "").
When I search one ldap server using the following filter
(cn=%*)
It return all results under the base dn? LDAP treat '%' specially? But I haven't found any description about it.
What is your directory server ?
Are you sure tha '%' is not replace by your command line interpreter or your compiler ?
According to RFC2254 % is not a special character
If a value should contain any of the following characters
Character ASCII value
---------------------------
* 0x2a
( 0x28
) 0x29
\ 0x5c
NUL 0x00
the character must be encoded as the backslash '\' character (ASCII
0x5c) followed by the two hexadecimal digits representing the ASCII
value of the encoded character. The case of the two hexadecimal
digits is not significant.
This simple escaping mechanism eliminates filter-parsing ambiguities
and allows any filter that can be represented in LDAP to be
represented as a NUL-terminated string. Other characters besides the
ones listed above may be escaped using this mechanism, for example,
non-printing characters.
For example, the filter checking whether the "cn" attribute contained
a value with the character "" anywhere in it would be represented as
"(cn=\2a*)".
Note that although both the substring and present productions in the
grammar above can produce the "attr=*" construct, this construct is
used only to denote a presence filter.
I need to request a file www.myserver.de/file%.pdf .
The file exists and requesting the renamed copy www.myserver.de/file.pdf works.
Is this expected behaviour?
% is the character for URL escape sequences. Try using %25 which decodes to a single % sign.
% has a special meaning in URLs, so you need to escape it in order to refer to files with %s in their names.
Try www.myserver.de/file%25.pdf instead.
I know that I can validate an input field by adding a inputmaskvalidator tag. I read the documentum doc :
The mask character string:
: numeric characters
& : all characters
A : alphanumeric characters only
? : alphabetic characters only
U : uppercase alphabetic characters only
L : lowercase alphabetic characters only
Example: date mask ##/##/## permits
the input date 12/24/95 To use one of
the mask characters as a literal
member of the mask string, place a
double slash (\) preceding the
character.
Let's guess I want to accept double only to store it as a double in the content server. What must be the inputmask value?
Something like that?
<dmf:inputmaskvalidator inputmask="#.#" controltovalidate="my_double" name="my_double_validator"/>
or
<dmf:inputmaskvalidator inputmask="##.##" controltovalidate="my_double" name="my_double_validator"/>
You must use other type of validator. Inputmaskvalidator is bad for your purpose. Use for example regexpvalidator. Example you can find on this page: