Thread: svnuseradd.sh: Add svnuser into your system

Hello everybody,

i have created svnuseradd.sh script for ubuntu , i hope it will useful for svn users

PHP Code:

#!/bin/bash

# svnuseradd.sh
#-----------------------------------------------------------------------------------------------------
# Author  : Rahul Patil<linuxian.com>
# Date    : Wed Nov 28 18:51:43 IST 2012
# Purpose :
# * This Script Created for add svnuser into your system
# * You can also add existing user into svngroup using this script
# * it will create ssh private and public keys for every each users ( Password less login for tortoisesvn )
# * it will gives you ssh pubic key in users own home directory, which can be load from windows machine using pegagent
# * it will add "svn ssh-tunnel", "svn log file" for each user
# * install usermin for user self password changer from webinterface
# * tested and working in Ubuntu
# * Default User password "username@1234"
# * Default Shell /bin/sh but , no-pty user will not able to login system , 
#-----------------------------------------------------------------------------------------------------


# Specify Your Repository/Project path
Project="/svn/repositories/safesquid/"
Svnserv_binary="$(which svnserve)"

# specify Your svngroup or use default
SvnGroup="svngroup"

# Difine ssh passkey if you want otherwise leave it
Pass_key=""

## Color Function
shw_norm () {
echo $(tput bold)$(tput setaf 2) $@ $(tput sgr 0)
}

shw_err ()  {     local message="$1"     local status=${2:-1} ### default exit status 1     echo -e "$(tput bold)$(tput setaf 1) $message $(tput sgr 0)"     exit $status }



# Check 1#
#if args less than zero then show_help
[[ $# -eq 0 ]] && { useradd --help; exit; };

# check 2#
# if Project not specify then exit
[[ ! -d "${Project}" ]] && {
                        shw_err "Project does not exist..\nPlease define Project path in $0";
                        exit 1;
                        };

# check 3#
# if subversion not install then exit
[[ -z "${Svnserv_binary}" ]] && {
                        shw_err  "Subversion not installed..\nPlease install Subversion..." 1
                        
                        };

# check 4#
# if puttygen not installed then install
if !  (which puttygen >/dev/null 2>&1); then
                        shw_norm "puttygen not installed...\ninstalling puttygen"; sleep 2s && \
                        apt-get install putty-tools
fi

# check 5#
# if usermin not installed then install
if [ ! -f "/etc/usermin/miniserv.conf" ]; then
shw_norm "Usermin is not Install..." && sleep 1s &&                              \
shw_norm "Installing Usermin For Selfpassword change for user" && sleep 2s && \
apt-get install libnet-ssleay-perl libio-pty-perl apt-show-versions -y &&     \
wget http://prdownloads.sourceforge.net/webadmin/usermin_1.530_all.deb &&     \
dpkg -i usermin_1.530_all.deb                                                   
# remove unwated rights from usermin only keep password change options
cp /etc/usermin/webmin.acl{,-bkp$(date +&#37;F)}
echo 'user: changepass' > /etc/usermin/webmin.acl
fi

useradd_sshkey() {
                # if group does not exists then create
                grep -q "${SvnGroup}" /etc/group || groupadd ${SvnGroup}

                # add new user else add existing user into svn group
                useradd -s /bin/false -g "${SvnGroup}" -m "$@" &&  \
                read User_name Home_Dir <<<"$(awk -F: 'END{print $1,$6}' /etc/passwd)" || \
                { useradd -g "${SvnGroup}" $1; Input="$1" ; \
                read User_name Home_Dir <<<"$(awk -F: "/$Input/ "'{print $1,$6}' /etc/passwd)"; };

                # Set password
                echo "${User_name}:${User_name}@1234" | /usr/sbin/chpasswd
                # if home dir not exists then create
                [[ ! -d "${Home_Dir}" ]] && mkdir "${Home_Dir}"

                # if .ssh dir not exists in uses home dir then create
                [[ ! -d "${Home_Dir}/.ssh" ]] && mkdir ${Home_Dir}/.ssh

                # add svn ssh tunnel into user's authorized keys
                echo -n "command=\"${Svnserv_binary} -t --tunnel-user=${User_name} -r ${Project} --log-file=/tmp/svnserver_${User_name}.log\",no-port-forwarding,no-agent-forwarding,no-X11-forwarding,no-pty"  >>  "${Home_Dir}"/.ssh/authorized_keys

                # create private and public key using ssh-keygen without pass
                ssh-keygen -P "${Pass_key}" -t rsa -b 1024 -f "${User_name}"_ssh.key

                # connvert private key into ssh_key.ppk which can use to load into pagagent in windows
                puttygen "${User_name}"_ssh.key -O private -o "${Home_Dir}"/"${User_name}"_ssh.ppk
                echo -n ' ' >> "${Home_Dir}"/.ssh/authorized_keys
                cat "${User_name}"_ssh.key.pub >> "${Home_Dir}/.ssh/authorized_keys"

                # change permission
                chown -R "${User_name}"  "${Home_Dir}"
                chmod 700 -R  "${Home_Dir}"
                
               
}



useradd_sshkey "$@" 


All Master Advice and comments are welcome

hi,

Code:

if ! (grep -q "${SvnGroup}" /etc/group); then groupadd ${SvnGroup}; fi

why use a subshell?
simple conditions, simple expression:

Code:

grep -q "${SvnGroup}" /etc/group || groupadd ${SvnGroup}

just like you use it below;
where you don't need those backslashes to keep the line, for example :

Code:

condition || {
   command
   command
}

the command list is clearly seen then.

about indentation: a whole tabulation is a lot, three or four spaces are enough.

Code:

read var <<<$(command)

it works, but

Code:

read var < <(command)

seems nicer. is it more efficient? I sincerly don't know.

Hi,

Thanks wateal , i updated that.. and i use backslash with && because if one success then run another.

I agree about these && \
it's more readable than all on one line.
I was talking about the command lists and conditions.

Code:

shw_err ()  {
    local message="$1"
    local status=${2:-1} ### default exit status 1
    echo -e "$(tput bold)$(tput setaf 1) $message $(tput sgr 0)"
    exit $status
}

And call as:

Code:

shw_err  "Subversion not installed..\nPlease install Subversion..." 2
shw_err  "Subversion not found..\nbut needed version 5.x..."

tput code can be replaced with echo command:

Code:

echo -e "\033[1mFoo Bar\033[0m"