#!/bin/bash

# invoke this as root on mire

exec 2>&1

# drop any tokens; use only users' cgi tokens
kdestroy > /dev/null 2>&1
unlog

#VERBOSE=true
VERBOSE=false

LOCAL_LOG_DIR=/var/log/apache2/user
KEYTAB_DIR=/etc/keytabs/user.daemon
AFS_USER_DIR=/afs/hcoop.net/user
ERROR=no

# Sanify permissions so that we can safely create tmp directories and
# run rsync.
chmod -R u=rwX,g=rX,o=X $LOCAL_LOG_DIR

# Iterate through logs for each user
for A in $(find $LOCAL_LOG_DIR -mindepth 3 -maxdepth 3 -print); do
    USER=`basename $A`
    PATHBITS=`echo $USER | head -c 1`/`echo $USER | head -c 2`/$USER
    USER_HOME=$AFS_USER_DIR/$PATHBITS
    LOG_SRC=$A/apache/log
    LOG_DEST=$USER_HOME/.logs/apache/
    TMP_DEST=$LOG_SRC.tmp

    # Skip deleted or empty log directories
    if test ! -d "$LOG_SRC" || ! ls "$LOG_SRC"/*/*/*.log >/dev/null 2>&1; then
        continue
    fi

    # Skip people who have unreadable log subdirectories
    if test -d "$USER_HOME/.logs" && \
        ! ls "$USER_HOME/.logs" >/dev/null 2>&1; then
        continue
    fi

    # Skip people who do not have keytabs
    if test ! -f "$KEYTAB_DIR/$USER"; then
        continue
    fi

    if test "$VERBOSE" = "true"; then
        echo
        echo "=============================================================================="
        echo "syncing logs for $USER from $A"
        echo "  to $LOG_DEST ..."
    fi

    if test ! -d "$LOG_DEST"; then
        echo "Error: $LOG_DEST does not exist, please make it"
        ERROR=yes
    else
        rm -fr $TMP_DEST
        cp -r $LOG_SRC $TMP_DEST
        chown -R $USER:nogroup $TMP_DEST
        chmod -R u=rwX,go=X $TMP_DEST
        k5start -qtU -f $KEYTAB_DIR/$USER \
            -- su $USER -c "rsync -a $TMP_DEST/ $LOG_DEST/"
        rm -fr $TMP_DEST
        test "$VERBOSE" = "true" && echo "  done."
    fi
done

if test "$ERROR" = "yes"; then
    exit 1
else
    exit 0
fi