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Fix(adduser): Better code structure

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Nikolas Garofil 2021-12-23 21:52:55 +01:00
parent 8b5f01a22c
commit 01808b3aae
1 changed files with 57 additions and 50 deletions
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107
plugins/adduser/adduser.plugin.zsh
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@ -1,63 +1,70 @@
# Copyright (c) 2021 Nikolas Garofil
adduser() {
local returncode
local result_string="Installation of 'Oh My Zsh' "
local temp_installscript
local path_installscript="$ZSH/tools/install.sh"
_adduser_result() {
local result_string="Installation of 'Oh My Zsh' for '$new_user'"
#Create user, errors will be reported by the 'real' adduser
#Use which/tail combination to call the binary instead of this function
command adduser $@ || return 1
echo "\nUser '${@[$#]}' has been created. I will now try to install 'Oh My Zsh'"
if [[ -f $path_installscript ]] ; then
#copy install.sh to a new file in temp that we can give the right owner to execute
#and also make sure that after the install script we are no longer the new user
temp_installscript=$(mktemp)
cp $path_installscript $temp_installscript
chown ${@[$#]} $temp_installscript && chmod +x $temp_installscript
#try installing with sudo or su when not available
if [[ -x "$commands[sudo]" ]] ; then
sudo -u ${@[$#]} sh -c "$temp_installscript --unattended"
returncode=$?
if [[ -x "$commands[chsh]" ]] ; then
sudo chsh -s $commands[zsh] ${@[$#]}
else
echo "'chsh' is not available, change the shell manually." > /dev/stderr
fi
returncode=$?
else
if [[ -x "$commands[su]" ]] ; then
su -l ${@[$#]} -c "$temp_installscript --unattended"
returncode=$?
if [[ -x "$commands[chsh]" ]] ; then
su -c "chsh -s $commands[zsh] ${@[$#]}"
else
echo "'chsh' is not available, change the shell manually." > /dev/stderr
fi
else
echo "You can't become ${@[$#]} (no 'sudo' or 'su' available)" > /dev/stderr;
returncode=1
fi
fi
#cleanup
#Erase the temporary copy of the installscript when necessary
if [[ ! -z $temp_installscript ]] ; then
rm $temp_installscript
else
echo "Installationscript '$path_installscript' not available" > /dev/stderr;
returncode=1
fi
#mention the result
if [[ $returncode -eq 0 ]]; then
if [[ $1 -eq 0 ]]; then
echo "$result_string succeeded."
else
echo "$result_string failed." > /dev/stderr
fi
return $returncode
}
adduser() {
local path_installscript="$ZSH/tools/install.sh"
local unattended_options=" --unattended"
local new_user=${@[$#]}
local temp_installscript; local unattended_installer; local install_as_user; local change_shell;
#Create user, errors will be reported by the 'real' adduser
#Don't use $new_user so that we have all args
command adduser $@ || return 1
echo "\nUser '$new_user' has been created. I will now try to install 'Oh My Zsh'"
if [[ ! -f $path_installscript ]] ; then
echo "Installationscript '$path_installscript' not available" > /dev/stderr;
_adduser_result 1
return 1;
fi
#copy install.sh to a new file in temp that we can give the right owner to execute
#and also make sure that after the install script we are no longer the new user
temp_installscript=$(mktemp)
cp $path_installscript $temp_installscript
chown $new_user $temp_installscript && chmod +x $temp_installscript
unattended_installer="$temp_installscript $unattended_options"
if [[ ( ! -x "$commands[sudo]" ) && ( ! -x "$commands[su]" ) ]] ; then
echo "You can't become $new_user (no 'sudo' or 'su' available)" > /dev/stderr;
_adduser_result 1
return 1;
fi
if [[ -x "$commands[sudo]" ]] ; then
install_as_user="sudo -u $new_user sh -c '$unattended_installer'"
change_shell="sudo chsh -s $commands[zsh] $new_user"
else
install_as_user="su -l $new_user -c '$unattended_installer'"
change_shell="su -c 'chsh -s $commands[zsh] $new_user'"
fi
eval ${install_as_user}
#mention the result before changing the shell (even with a bad result it's still installed)
if [ ! $? -eq 0 ] ; then
_adduser_result 1
return 1
fi
if [[ ! -x "$commands[chsh]" ]] ; then
echo "'chsh' is not available, change the shell manually." > /dev/stderr
fi
eval ${change_shell}
}