问题
I have a LDIF file which has a multi-value Base64-encoded attribute, and I'd like to convert it in non-Base64-encoded syntax. How can this be done?
Context
The LDIF file is as such:
dn: cn=johndoe,ou=clients,ou=management,dc=example,dc=com
changetype: modify
replace: foobarStatus
foobarStatus:: ZW5hYmxl... (Base64 string) ...ZCA9IHRydWU
where the decoded Base64 string is as such:
market = "US"
mgmt.account.mode = "X12"
foo.field = "Something"
bar.field = "Something else"
...
Problem
When I try to import this LDIF file into a LDAP server via ldapmodify, I get an error:
ldapmodify: invalid format (line 4) entry: "cn=johndoe,ou=clients,ou=management,dc=example,dc=com"
I've been trying to solve this for a while but couldn't find the error. It could be some spurious character somewhere. Therefore I thought of converting the Base64 part of the LDIF and importing it on this format. The attribute values don't contain any non-printable ASCII (e.g. accented letters) so it should work fine.
Note
This could be a XY problem so if anyone has another suggestion, I'm eager to read it.
回答1:
It turns out ldapmodify doesn't like long lines. Therefore, after splitting the Base64 code here
foobarStatus:: ZW5hYmxl... (Base64 string) ...ZCA9IHRydWU
into multiple lines of 79 chars or less, ldapmodify was able to import it.
This solved my original problem. I'm leaving the solution here for future readers.
回答2:
To convert a base64 string to plain text, i use base64 -d -d stands for decode.
an example in both directions:
$ echo https://stackoverflow.com/ | base64
aHR0cHM6Ly9zdGFja292ZXJmbG93LmNvbS8K
$ echo aHR0cHM6Ly9zdGFja292ZXJmbG93LmNvbS8K | base64 -d
https://stackoverflow.com/
And yes, i think it is an xy Problem.
来源：https://stackoverflow.com/questions/43117733/convert-a-base64-ldif-file-to-plaintext-for-import