Active Directory export script to import into SME Server

I had to migrate users from an Active Directory/Exchange combo to a SME server for temporary disaster recovery event. Here’s the script I wrote to create the export and recreate the users and their aliases in the SME server.

The export was done before the disaster of course :)

#!/bin/bash

#ldapsearch -x -b "dc=customer,dc=com" -h 1.2.3.4 -D "domain\user" -W "(objectclass=user)" > activedirectory.ldiff
File="activedirectory.ldiff"

#reset files content
echo > sme.users
echo > sme.aliases

cat "$File" | while read line
do
       #concatenate new line to existing info
        UserInfo="$UserInfo
$line"

       #treat all info if user is finished
        if $(echo -e "$line" | grep -q '^$')
        then
                echo User info finished

                #treat only users with mail address
                if $(echo "$UserInfo" | grep -q '^mail:')
                then
                       #recover data
                        UserName=$(echo "$UserInfo" | grep 
'^sAMAccountName:' | sed -e 's/sAMAccountName: //' | tr '[A-Z]' '[a-z]')
                        UserFirstName=$(echo "$UserInfo" | grep '^givenName:' | sed -e 's/givenName: //')
                        UserLastName=$(echo "$UserInfo" | grep '^sn:' | sed -e 's/sn: //')
                        UserMail=$(echo "$UserInfo" | grep '^mail:' | awk '{print $2}' | tr '[A-Z]' '[a-z]')
                        UserMailAliases=$(echo "$UserInfo" | grep 
'^proxyAddresses: smtp:' | sed -e 's/^proxyAddresses: 
smtp:\(.*\)@.*$/\1/' | sort -u | grep -vi "^${UserName}$" | tr '\n' '|' |
 tr '[A-Z]' '[a-z]')
                        Tmp=$(dd if=/dev/urandom | tr -dc _A-Z-a-z-0-9 | head -c 4)
                        UserPassword=$(echo "${UserName}${Tmp}" | tr '[A-Z]' '[a-z]')

                       #print user info
                        echo "$UserName |$UserFirstName |$UserLastName |$UserPassword" >> sme.users
                        #print aliases if any
                        if [ $(echo "$UserMailAliases" | wc -c) -gt 2 ]
                        then
                            echo "$UserName |$UserMailAliases" | sed -e 's/^\(.*\)|$/\1/' >> sme.aliases
                        fi

                        #cleanup some shit
                        unset UserName
                        unset UserFirstName
                        unset UserLastName
                        unset UserMail
                        unset UserMailAliases
                        unset Tmp
                        unset UserPassword
                fi

                unset UserInfo
        fi
done

You can then import all the users and their aliases with the following commands:

lat-users -a -i sme.users
lat-pseudonyms -a -i sme.aliases
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