path: root/user-init

#!/bin/sh

set -e

# reset flags
apache_reload_needed=""
runmode="normal"

# subfolder name defaults (edit /etc/local/users.conf to override)
mac="mac" # Optimized for sharing through AppleShare (netatalk)
pc="pc" # Optimized for sharing though SMB/CIFS (Samba)
xchange="xchange" # Readable by group

# config (edit /etc/local/users.conf to override) 

# which are user accounts (adduser values are used if empty) 
first_uid=""
last_uid=""     

do_quota="no"    # Manage disk quota 
do_distrib="no"  # Distributed shares (software archive) 
do_personal="no" # Personal shares (mac, pc, public_html) 
do_xchange="no"  # Group-readable shares 
do_public="no"   # Public share (web homepage) 
do_mac="no"      # AppleShare-optimized share (netatalk) 
do_pc="no"       # SMB-ptimized share (Samba) 
do_server="no"   # Personal share on remote SMB server 

quota_roots="" # space-delimited list of disk devices 
quota_soft="100000"
quota_hard="1000000"
quota_newstyle="yes" # Woody used a different syntax... 
                
xchange_root="xchange"
xchange_sharedroot="/home/XCHANGE"
        
mac_root="mac"

pc_root="pc"

server_name="SERVER" # SMB name of remote server
server_desc="remote server"
server_root="server"
server_conf="/etc/security/pam_mount.conf"
server_userconf=".winpassword"

### No servicable parts below this line! ### 

if [ -e /etc/adduser.conf ]; then
    . /etc/adduser.conf
else
    echo "/etc/adduser.conf missing. Exiting..."
    exit 1
fi

[ -r /etc/local/users.conf ] && . /etc/local/users.conf

#TODO: Add conversion like below, and change remaining script to new variable names
#[ -n "$XDIR" ] && xchange_sharedroot="$XDIR"

# exit silently if this system lacks required hints
[ -r /etc/local/volumes ] && . /etc/local/volumes || exit 0

XDIRREAL="$XDIR/users/root"

if [ -n "$XCHANGE" ]; then
    if [ ! -d "$XDIR" ]; then
        echo "XDIR doesn't exist. Ignoring XCHANGE!"
        XCHANGE=""
    fi
fi

if [ $# -gt 0 ]; then
    USERS=$*
else
#   USERS=`getent passwd | awk -F: '{print $1}'`
    echo "uid required!"
    exit 1
fi

[ -n "$NETATALK_HOME" ] && mac="$NETATALK_HOME"
[ -n "$SAMBA_HOME" ] && pc="$SAMBA_HOME"
[ -n "$XCHANGE_HOME" ] && xchange="$XCHANGE_HOME"

echo "Setting up additional folders and permissions..."
for user in $USERS; do
    uid="`getent passwd \"$user\" | awk -F: '{print $3}' | head -1`"
    HOME="`getent passwd \"$user\" | awk -F: '{print $6}' | head -1`"
    if [ -z "$HOME" ]; then
        echo "User $user doesn't exist. Ignoring..."
        continue
    fi

    # Ignore non-human accounts silently
    [ "$uid" -ge "$FIRST_UID" -a "$uid" -le "$LAST_UID" ] || continue

    [ -d "$HOME" ] || continue
#   [ -L "$HOME" ] && continue

    echo -n "$user"

#   if [ -x /etc/local/quota.sh ]; then
#       /etc/local/quota.sh "$user"
#       fi
    [ -n "$QUOTASOFT" ] || QUOTASOFT="0"
    [ -n "$QUOTAHARD" ] || QUOTAHARD="0"
    for QUOTAHOME in $QUOTAHOMES; do
        if [ -n "$NEW_QUOTA" ]; then
            setquota "$user" "$QUOTASOFT" "$QUOTAHARD" 0 0 "$QUOTAHOME"
        else
            setquota "$user" "$QUOTAHOME" "$QUOTASOFT" "$QUOTAHARD" 0 0
        fi
    done

    mkdir -p "$HOME/mail"
    if [ -n "$USE_MBOX" ]; then
        touch "$HOME/mail/mbox"
    elif [ -f "$HOME/mail/mbox" ] && [ ! -s "$HOME/mail/mbox" ]; then
        rm -f "$HOME/mail/mbox"
    fi

    if [ -n "$NETATALK" ]; then
        mkdir -p "$HOME/$mac"
    fi
    if [ -n "$SAMBA" ]; then
        mkdir -p "$HOME/$pc"
    fi

    if [ -n "$XCHANGE" ]; then
        mkdir -p "$XDIRREAL/$user"
    fi

    if [ -n "$PUBLIC" ]; then
        mkdir -p "$HOME/public_html"
    fi

#TODO: Enable this only when option implemented to do it non-interactively
#   echo # dirty hack: better if being able to lower verbosity of localuserconfig
#   su -s /bin/bash -c localuserconfig "$user"

    if [ "$do_server" = "yes" ] && [ -r "$server_conf" ] && [ -f "$HOME/$server_userconf" ]; then
        server_username="$(grep '^username' \"$HOME/$server_userconf\" | awk -F= '{print $2}' | head -1 | awk '{print $1}')"
        if [ -n "$server_username" ]; then
            if grep -q "^volume $user " "$server_conf"; then
                perl -pi -e "s|^volume $user .*|volume $user smb $server_name $server_username $HOME/$server_root uid=$user,gid=$user - -|" "$server_conf"
            else
                echo "volume $user smb $server_name $server_username $HOME/$server_root uid=$user,gid=$user - -" >> "$server_conf"
            fi
        fi
    fi

    chown "$user": "$HOME"
    chmod u=rwX,go=rX "$HOME"

    # Mail handling
    chown -R "$user": "$HOME/mail"
    chmod -R u=rw,go=,u+X "$HOME/mail"
    if [ -f "$HOME/.mailboxlist" ]; then
        chown "$user": "$HOME/.mailboxlist"
        chmod 0640 "$HOME/.mailboxlist"
    fi
    if [ -f "$HOME/.forward" ]; then
        chown "$user": "$HOME/.forward"
        chmod 0640 "$HOME/.forward"
    fi
    if [ -f "/var/mail/$user" ]; then
        chown "$user":mail "/var/mail/$user"
        chmod ug=rw,o= "/var/mail/$user"
    elif [ -f "/var/spool/mail/$user" ]; then
        chown "$user":mail "/var/spool/mail/$user"
        chmod ug=rw,o= "/var/spool/mail/$user"
    fi

    # MySQL handling
    if [ -f "$HOME/.my.cnf" ]; then
        chown "$user": "$HOME/.my.cnf"
        chmod 0600 "$HOME/.my.cnf"
    fi

    # Mac dir permissions
    if [ -d "$HOME/$mac" ]; then
        chown -R "$user": "$HOME/$mac"
        chmod -R u=rw,g=r,o=,ug+X "$HOME/$mac"
        rm -rf "$HOME/$mac/Network Trash Folder"
        mkdir "$HOME/$mac/Network Trash Folder"
        chown nobody: "$HOME/$mac/Network Trash Folder"
        chmod a= "$HOME/$mac/Network Trash Folder"
    fi

    # PC dir permissions
    if [ -d "$HOME/$pc" ]; then
        chown -R "$user": "$HOME/$pc"
        chmod -R u=rw,g=r,o=,ug+X "$HOME/$pc"
    fi

#FIXME: something is wrong with prefixing "x" here...
    # Exchange dir permissions
    if [ -d "$XDIRREAL/$user" ]; then
        chown -R "$user":users "$XDIRREAL/$user"
        chmod -R g=r,g+X "$XDIRREAL/$user"
        if [ -e "x$HOME/$xchange" ]; then
            if [ -L "x$HOME/$xchange" ]; then
                ln -sf "$XDIRREAL/$user $HOME/$xchange"
            else
                echo "ERROR: \"$HOME/$xchange\" exists already. Leaving it as is..."
            fi
        else
            ln -s "$XDIRREAL/$user" "$HOME/$xchange"
        fi
    fi

    # Public dir permissions
    if [ -d "$HOME/public_html" ]; then
        chown -R "$user": "$HOME/public_html"
        chmod -R u+rX,go=r,go+X "$HOME/public_html"
        if [ -n "$NETATALK" ]; then
            rm -rf "$HOME/public_html/Network Trash Folder"
            mkdir "$HOME/public_html/Network Trash Folder"
            chown nobody: "$HOME/public_html/Network Trash Folder"
            chmod a= "$HOME/public_html/Network Trash Folder"
        fi
    fi

    # Private dir permissions
    if [ -d "$HOME/private" ]; then
        chown -R "$user": "$HOME/private"
        chmod -R u+rX,g=r,g+X,o= "$HOME/private"
    fi

    # Fileshares: <home>/shares.<sharetype>/<rogroup>/<rwgroup>/<sharename>
    #   <sharetype>: Either mac or win depending on which of netatalk and samba provides r/w access to the shares
    #   <rwgroup>:   Group with write access to the share (usually the default group of the owner)
    #   <rogroup>:   Either rwgroup or secondary group with read-only access to the share
    #   owner and rwgroup members must be member of both groups
    find "$HOME" -mindepth 1 -maxdepth 1 -type d -print | egrep "^$HOME/shares\." | (while read thisdir; do
        sharetype="`basename \"$thisdir\" | awk -F. '{print $2}'`"
        # Define dir and file exceptions
        case "$sharetype" in
            mac)
            dirs_world_rw_create='.AppleDB'
            dirs_group_rw_create='.AppleDesktop/Temporary Items/TheFindByContentFolder'
            dirs_group_ro_create='TheVolumeSettingsFolder'
            dirs_group_ro_update='.AppleDouble'
            files_group_ro_update=':2eDS_Store'
            dirs_no_access_purge='Network Trash Folder'
            ;;
            win)
            ;;
            *)
            continue
            ;;
        esac
        exceptions="$dirs_world_rw_create/$dirs_group_rw_create/$dirs_group_ro_create/$dirs_group_ro_update/$files_group_ro_update/$dirs_no_access_purge"
        exception_dirs_create="$dirs_world_rw_create/$dirs_group_rw_create/$dirs_group_ro_create"
        chown "$user": "$thisdir"
        chmod a=rX "$thisdir"
        find "$thisdir" -mindepth 1 -maxdepth 1 -type d -print | (while read thisdir; do
            rogroup="`basename \"$thisdir\"`"
            chown "$user":"$rogroup" "$thisdir"
            chmod ug=rX,o= "$thisdir"
            find "$thisdir" -mindepth 1 -maxdepth 1 -type d -print | (while read thisdir; do
                rwgroup="`basename \"$thisdir\"`"
                chown "$user":"$rwgroup" "$thisdir"
                chmod a=rX,g+s "$thisdir"
                find "$thisdir" -mindepth 1 -maxdepth 1 -type d -print | (while read thisdir; do
                    sharename="`basename \"$thisdir\"`"
                    chown "$user":"$rwgroup" "$thisdir"
                    chmod u=rw,go=r,a+X,g+s "$thisdir"
                    ifs="$IFS"
                    # Set default permissions
                    find "$thisdir" -mindepth 1 -maxdepth 1 -print | (while read thisdir; do
                        item="`basename \"$thisdir\"`"
                        IFS="/"; for exception in $exceptions; do IFS="$ifs";
                            if [ "$item" = "$exception" ]; then
                                continue 2
                            fi
                        done
                        chgrp -R "$rwgroup" "$thisdir"
                        chmod -R ug=rw,o=r,a+X,g+s "$thisdir"
                    done)
                    # Handle exception dirs to be created if not existing
                    IFS="/"; for dir in $exception_dirs_create; do IFS="$ifs";
                        if [ ! -d "$thisdir/$dir" ]; then
                            rm -f "$thisdir/$dir"
                        fi
                        if [ ! -e "$thisdir/$dir" ]; then
                            mkdir "$thisdir/$dir"
                        fi
                        chown "$user":"$rwgroup" "$thisdir/$dir"
                    done
                    IFS="/"; for dir in $dirs_world_rw_create; do IFS="$ifs";
                        if [ "$rogroup" = "$rwgroup" ]; then
                            chmod -R ug=rw,o=r,a+X,g+s "$thisdir/$dir"
                        else
                            chmod -R a=rw,a+X,g+s "$thisdir/$dir"
                        fi
                    done
                    IFS="/"; for dir in $dirs_group_rw_create; do IFS="$ifs";
                        chmod -R ug=rw,o=r,a+X,g+s "$thisdir/$dir"
                    done
                    IFS="/"; for dir in $dirs_group_ro_create; do IFS="$ifs";
                        chmod -R u=rw,go=r,a+X,g+s "$thisdir/$dir"
                    done
                    # Handle exception dirs to be updated if already there
                    IFS="/"; for dir in $dirs_group_ro_update; do IFS="$ifs";
                        if [ -e "$thisdir/$dir" ]; then
                            chmod u=rw,go=r,a+X,g+s "$thisdir/$dir"
                        fi
                    done
                    # Handle exception files to be updated if already there
                    IFS="/"; for file in $files_group_ro_update; do IFS="$ifs";
                        if [ -e "$thisdir/$file" ]; then
                            chmod u=rw,go=r,g+s "$thisdir/$file"
                        fi
                    done
                    # Handle exception dirs to be purged and recreated
                    IFS="/"; for dir in $dirs_no_access_purge; do IFS="$ifs";
                        rm -rf "$thisdir/$dir"
                        mkdir -m a= "$thisdir/$dir"
                        chown nobody: "$thisdir/$dir"
                    done
                    IFS="$ifs"
                done)
            done)
        done)
    done)

    # Deprecated share permissions
    for dir in `find $HOME -mindepth 1 -maxdepth 1 -type d | egrep "^$HOME/shares_win"`; do
        chgrp -R "$user" "$dir"
        chmod -R u=rw,g=rw,o=,ug+X,g+s "$dir"
    done
    for dir in `find $HOME -mindepth 1 -maxdepth 1 -type d | egrep "^$HOME/shares_mac"`; do
        chgrp -R "$user" "$dir"
        chmod -R u=rw,g=rw,o=,ug+X,g+s "$dir"
        rm -rf "$dir/Network Trash Folder"
        mkdir "$dir/Network Trash Folder"
        chown nobody: "$dir/Network Trash Folder"
        chmod a= "$dir/Network Trash Folder"
    done

    # Ftp shares permissions
    for dir in `find $HOME -mindepth 1 -maxdepth 1 -type d | egrep "^$HOME/ftp_$USER$"`; do
        chgrp -R "$user" "$dir"
        chmod -R ug=rw,o=r,a+X,g+s "$dir"
        rm -rf "$dir/Network Trash Folder"
        mkdir "$dir/Network Trash Folder"
        chown nobody: "$dir/Network Trash Folder"
        chmod a= "$dir/Network Trash Folder"
    done
    for dir in `find $HOME -mindepth 1 -maxdepth 1 -type d | egrep "^$HOME/ftp_${USER}_ro$"`; do
        chown -R "$user": "$dir"
        chmod -R u=rw,go=r,a+X "$dir"
        rm -rf "$dir/Network Trash Folder"
        mkdir "$dir/Network Trash Folder"
        chown nobody: "$dir/Network Trash Folder"
        chmod a= "$dir/Network Trash Folder"
    done

    # Web shares permissions
    for dir in `find $HOME -mindepth 1 -maxdepth 1 -type d | egrep "^$HOME/web_"`; do
        chown -R "$user": "$dir"
#       chmod -R u=rw,go=r,a+X $webdir
#TODO: Only cgi scripts (.cgi and .pl) should be executable
        chmod -R u+rw,go+r,a+X "$dir"
        # leftover from ancient times with another policy
        if [ $NETATALK ]; then
            rm -rf "$dir/Network Trash Folder"
        fi
    done
    
    # Web shares permissions
    for dir in `find $HOME -mindepth 1 -maxdepth 1 -type d | egrep "^$HOME/websites"`; do
        chown root: "$dir"
        chmod a=r,u+w,a+X "$dir"
    done
    for dir in `find $HOME -mindepth 2 -maxdepth 2 -type d | egrep "^$HOME/websites/"`; do
        chown -R "$user": "$dir"
#       chmod -R u=rw,go=r,a+X $webdir
#TODO: Only cgi scripts (.cgi and .pl) should be executable
        chmod -R u+rw,go+r,a+X "$dir"
        # leftover from ancient times with another policy
        if [ $NETATALK ]; then
            rm -rf "$dir/Network Trash Folder"
        fi
    done
    for dir in `find $HOME -mindepth 1 -maxdepth 1 -type d | egrep "^$HOME/webscripts"`; do
        chown root: "$dir"
        chmod a=r,u+w,a+X "$dir"
    done
    for dir in `find $HOME -mindepth 2 -maxdepth 2 -type d | egrep "^$HOME/webscripts/"`; do
        chown -R $user: "$dir"
#       chmod -R u=rw,go=r,a+X $webdir
#TODO: Only cgi scripts (.cgi and .pl) should be executable
        chmod -R u+rw,go+r,a+X "$dir"
    done
    for dir in `find $HOME -mindepth 1 -maxdepth 1 -type d | egrep "^$HOME/webdata"`; do
        chown "$user": "$dir"
        chmod a=r,u+w,a+X "$dir"
    done
    for dir in `find $HOME -mindepth 2 -maxdepth 2 -type d | egrep "^$HOME/webdata/"`; do
        chown -R "$user": "$dir"
        chmod -R u=rw,go=,u+X "$dir"
    done
    for dir in `find $HOME -mindepth 1 -maxdepth 1 -type d | egrep "^$HOME/webshareddata"`; do
        chown "$user": "$dir"
        chmod a=r,u+w,a+X "$dir"
    done
    for dir in `find $HOME -mindepth 2 -maxdepth 2 -type d | egrep "^$HOME/webshareddata/"`; do
        chown -R "$user:" "$dir"
        chmod -R u=rw,go=r,a+X "$dir"
    done
    for dir in `find $HOME -mindepth 1 -maxdepth 1 -type d | egrep "^$HOME/webphpsites"`; do
        chown root: "$dir"
        chmod u=rw,go=r,a+X "$dir"
    done
    for dir in `find $HOME -mindepth 2 -maxdepth 2 -type d | egrep "^$HOME/webphpsites/"`; do
        chown -R "$user":www-data "$dir"
#       chmod -R ug=rw,o=r,a+X $dir
        chmod -R ug=rw,o=,ug+X "$dir"
    done
    for dir in `find $HOME -mindepth 1 -maxdepth 1 -type d | egrep "^$HOME/webphpdata"`; do
        chown root: "$dir"
        chmod a=r,u+w,a+X "$dir"
    done
    for dir in `find $HOME -mindepth 2 -maxdepth 2 -type d | egrep "^$HOME/webphpdata/"`; do
        chown -R "$user":www-data "$dir"
        chmod -R ug=rw,o=,ug+X "$dir"
    done
    
    # Dummy user restrictions
    if [ -n "$REALUSERS_GROUPNAME" -a -n "$DUMMYSHAREDIR" -a -n "$DUMMYSHAREOWNER" -a -n "$DUMMYSHARENAME" ]; then
        [ -e $DUMMYSHAREDIR/$user ] \
            || mkdir $DUMMYSHAREDIR/$user
        chown $DUMMYSHAREOWNER: $DUMMYSHAREDIR/$user
        chmod u=rw,go=r,a+X $DUMMYSHAREDIR/$user
        if [ -e $HOME/$DUMMYSHARENAME ]; then
            if [ -L $HOME/$DUMMYSHARENAME ]; then
                ln -sf $DUMMYSHAREDIR/$user $HOME/$DUMMYSHARENAME
                chown $user: $HOME/$DUMMYSHARENAME
            else
                echo "WARNING: $HOME/$DUMMYSHAREDIR exists already. Leaving it as is..."
            fi
        else
            ln -s $DUMMYSHAREDIR/$user $HOME/$DUMMYSHARENAME
            chown $user: $HOME/$DUMMYSHARENAME
        fi
        if [ -n "$DUMMYAPACHECFG" -a -n "$DUMMYAPACHESHAREDIR" ]; then
            if [ -f /etc/apache/include.d/$DUMMYAPACHECFG -a -x /etc/init.d/apache ]; then
                if [ -e /etc/apache/include.d/$DUMMYAPACHECFG-$user ]; then
                    echo "/etc/apache/include.d/$DUMMYAPACHECFG-$user exists already. Ignoring..."
                else
                    echo "# Created automatically by adduser.local
<Location /$DUMMYAPACHESHAREDIR/$user>
    <Limit GET POST>
        require user $user
    </Limit>
</Location>" \
                        > /etc/apache/include.d/$DUMMYAPACHECFG-$user
                    apache_reload_needed="1"
                fi
            fi
        fi
    fi

    echo "."
done

if [ $XCHANGE ]; then
    for USER in $(ls $XDIRREAL); do
        id $user >/dev/null 2>&1 || rm -rf $XDIRREAL/$user
    done
fi

if [ "$apache_reload_needed" ]; then
    apache_do_reload=""
    case runmode in
        interactive)
        echo -n "Apache config changed. Reload Apache now (Y/n)? "
        read apache_reload
        case $apache_reload in
            y|Y|"")
            apache_do_reload="1"
            ;;
        esac
        ;;
        force)
        apache_do_reload="1"
        ;;
        *)
        echo "Apache config has changed. Remember to reload Apache...!"
        ;;
    esac
    if "$apache_do_reload" ]; then
        /etc/init.d/apache force-reload
    fi
fi