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#!/usr/bin/env bash
set -eu
dest="dovecot-sysreport-$(uname -n)-$(date +'%s').tar.gz"
conf_flag=""
binary=""
core=""
copy_files=""
keep_temp=0
PARAMS=""
SRTEMP="`mktemp -d`"
if test "x$SRTEMP" = x; then
echo "Could not create temp directory"
exit 1
fi
while (( "$#" )); do
case "$1" in
-d|--destination)
if [ "$#" -lt "2" ] ; then
echo "Usage: $0 $1 <destination.tar.gz>"
exit 1
fi
dest=$2
shift 2
;;
-c|--config)
if [ "$#" -lt "2" ] ; then
echo "Usage: $0 $1 <config_file>"
exit 1
fi
conf_flag="-c $2"
shift 2
;;
-o|--core)
gdb=`which gdb`
if [ "$gdb" = "" ]; then
echo "gdb not found"
exit 1
fi
if [[ "$#" -lt 2 ]] ; then
echo "Usage: $0 $1 [<binary>] <core> [...]"
exit 1
fi
while [[ "$#" -ge 2 ]]; do
# see if binary parameter is specified
binary=$2
if ! [ -r "$binary" ]; then
echo "$binary not readable"
exit 1
fi
binary_info=$(file "$binary")
if echo "$binary_info" | grep "core file.*execfn: '" >/dev/null; then
# no binary specified - detect it
binary=$(echo "$binary_info" | sed "s;^.*execfn: '\([^\']\+\)'.*$;\1;")
if ! [ -r "$binary" ]; then
echo "Detected binary path '$binary' from core file, but it is not readable"
exit 1
fi
echo "Core file was detected to be generated by $binary"
else
shift
fi
core=$2
shift
if ! [ -s "$core" ]; then
echo "$core not found or it is empty"
exit 1
fi
echo "gathering core file dependencies..."
core_files=$((echo "info shared"; sleep 1) | $gdb $binary $core | grep '^0x.*/' | sed 's,^[^/]*,,')
copy_files="$copy_files $binary $core_files"
cp $core $SRTEMP
done
shift
;;
-k|--keeptemp)
keep_temp=1
shift
;;
-h|--help)
echo -e "dovecot-sysreport \t[-h|--help] [-o|--core [binary] core [...]] [-d|--destination dest]
\t\t\t[-k|--keeptemp] -- utility to gather information from the current
\t\t\tsystem to be reported for dovecot bug fixes."
echo ""
echo -e "where:"
echo ""
echo -e "\t-h, --help\t\tShow the contents of this help."
echo -e "\t-d, --destination\tThe file location which the report archive should be put to.
\t\t\t\tThe default value is dovecot-sysreport-<hostname>-<current_timestamp>.tar.gz"
echo -e "\t-c, --config\t\tSpecify the root configuration file of dovecot."
echo -e "\t-o, --core\t\tInclude an specific core file along with its dependencies."
echo -e "\t-k, --keeptemp\t\tDo not remove temp files at the end."
exit 0
;;
--)
shift
break
;;
-*|--*=)
echo "Error: Unsupported flag $1" >&2
exit 1
;;
*)
PARAMS="$PARAMS $1"
shift
;;
esac
done
eval set -- "$PARAMS"
mkdir $SRTEMP/conf
doveconf $conf_flag -n > $SRTEMP/conf/dovecot.conf
unwrap_and_hide_pass () {
files=`grep -zPo 'dict\s*{[^}]*}' $1 | grep -zPo '.*=.*:\K(.*)' | tr '\0' '\n'`
files="$files `grep -zPo 'args\s*=\s*\K(.*)' $1 | tr '\0' '\n'`"
for cf in $files; do
if [ -r "$cf" ]; then
if [[ ! -z `grep -vhIE '^([^:]*:){6}[^:]*$' $cf` ]]; then
unwrap_and_hide_pass $cf
mkdir -p $SRTEMP/conf"$(dirname "$cf")"
if [[ -x "$(command -v python)" ]]; then
python <<HEREDOC
import re
conf = open('$cf', 'r').read()
hidden = re.sub('(?<!no)((?:password|key|nonce|dnpass)\s*=\s*).*?(?=$|\s)', '\g<1>#hidden', conf)
f = open('$SRTEMP/conf$cf', "w")
f.write(hidden)
f.close()
HEREDOC
elif [[ -x "$(command -v perl)" ]]; then
perl -pe 's/(?<!no)((?:password|key|nonce|dnpass)\s*=\s*).*?(?=$|\s)/\1#hidden/g' \
$cf > $SRTEMP/conf$cf
else
echo "perl or python is required to hide your passwords in dovecot's"
echo "configuration files. Either install at least one of them or"
echo "continue at your own peril. Do you want to continue (N/y)? "
read permit
if [ "$permit" != "Y" ] && [ "$permit" != "y" ]; then
exit 1
fi
cat $cf > $SRTEMP/conf$cf
fi
fi
fi
done
}
echo "Gathering configurations ..."
unwrap_and_hide_pass $SRTEMP/conf/dovecot.conf
echo "Gathering system informations ..."
doveadm $conf_flag log errors > $SRTEMP/log_errors || :
(printf "# Start: "; date) >$SRTEMP/ps_output
ps auxwww | grep '[d]ovecot' >> $SRTEMP/ps_output
(printf "# End: "; date) >>$SRTEMP/ps_output
doveadm $conf_flag service status > $SRTEMP/service_status || :
doveadm $conf_flag process status > $SRTEMP/process_status || :
uptime > $SRTEMP/uptime_output
doveadm $conf_flag stats dump > $SRTEMP/stats_dump || :
sleep 3
echo -e "\n\n###################### AFTER 3 SECONDS ######################\n\n" | \
tee -a $SRTEMP/ps_output $SRTEMP/service_status $SRTEMP/process_status \
$SRTEMP/uptime_output $SRTEMP/stats_dump > /dev/null
(printf "# Start: "; date) >>$SRTEMP/ps_output
ps auxwww | grep '[d]ovecot' >> $SRTEMP/ps_output
(printf "# End: "; date) >>$SRTEMP/ps_output
doveadm $conf_flag service status >> $SRTEMP/service_status || :
doveadm $conf_flag process status >> $SRTEMP/process_status || :
uptime >> $SRTEMP/uptime_output
doveadm $conf_flag stats dump >> $SRTEMP/stats_dump || :
cf=`pwd`
cd $SRTEMP
echo "Creating archive ..."
tar -czf `if [[ "$dest" = /* ]]; then echo $dest; else echo $cf/$dest; fi` --dereference \
$copy_files *
function cleanup {
if [ $keep_temp = 0 ]; then
echo "Removing temp files at $SRTEMP ..."
rm -rf $SRTEMP
else
echo "Temp files remains untouched at $SRTEMP ..."
fi
}
trap cleanup EXIT
echo "All done! Please report file $dest"