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path: root/src/auditor/test-revocation.sh
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#!/bin/bash
# Setup database which was generated from a exchange-wallet interaction
# with revocations and run the auditor against it.
#
# Check that the auditor report is as expected.
#
# Requires 'jq' tool and Postgres superuser rights!
set -eu

# Set of numbers for all the testcases.
# When adding new tests, increase the last number:
ALL_TESTS=`seq 0 4`

# $TESTS determines which tests we should run.
# This construction is used to make it easy to
# only run a subset of the tests. To only run a subset,
# pass the numbers of the tests to run as the FIRST
# argument to test-auditor.sh, i.e.:
#
# $ test-revocation.sh "1 3"
#
# to run tests 1 and 3 only.  By default, all tests are run.
#
TESTS=${1:-$ALL_TESTS}

# Global variable to run the auditor processes under valgrind
# VALGRIND=valgrind
VALGRIND=""

# Exit, with status code "skip" (no 'real' failure)
function exit_skip() {
    echo $1
    exit 77
}

# Exit, with error message (hard failure)
function exit_fail() {
    echo $1
    exit 1
}

# Cleanup to run whenever we exit
function cleanup()
{
    for n in `jobs -p`
    do
        kill $n 2> /dev/null || true
    done
    wait
}

# Install cleanup handler (except for kill -9)
trap cleanup EXIT


# Operations to run before the actual audit
function pre_audit () {
    # Launch bank
    echo -n "Launching bank "
    taler-bank-manage-testing $CONF postgres:///$DB serve 2>bank.err >bank.log &
    for n in `seq 1 80`
    do
        echo -n "."
        sleep 0.1
        OK=1
        wget http://localhost:8082/ -o /dev/null -O /dev/null >/dev/null && break
        OK=0
    done
    if [ 1 != $OK ]
    then
        exit_skip "Failed to launch bank"
    fi
    echo " DONE"

    if test ${1:-no} = "aggregator"
    then
        echo -n "Running exchange aggregator ..."
        taler-exchange-aggregator -L INFO -t -c $CONF 2> aggregator.log || exit_fail "FAIL"
        echo " DONE"
        echo -n "Running exchange closer ..."
        taler-exchange-closer -L INFO -t -c $CONF 2> closer.log || exit_fail "FAIL"
        echo " DONE"
        echo -n "Running exchange transfer ..."
        taler-exchange-transfer -L INFO -t -c $CONF 2> transfer.log || exit_fail "FAIL"
        echo " DONE"
    fi
}

# actual audit run
function audit_only () {
    # Run the auditor!
    echo -n "Running audit(s) ..."

    # Restart so that first run is always fresh, and second one is incremental
    taler-auditor-dbinit -r -c $CONF
    $VALGRIND taler-helper-auditor-aggregation -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-aggregation.json 2> test-audit-aggregation.log || exit_fail "aggregation audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-aggregation -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-aggregation-inc.json 2> test-audit-aggregation-inc.log || exit_fail "incremental aggregation audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-coins -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-coins.json 2> test-audit-coins.log || exit_fail "coin audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-coins -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-coins-inc.json 2> test-audit-coins-inc.log || exit_fail "incremental coin audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-deposits -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-deposits.json 2> test-audit-deposits.log || exit_fail "deposits audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-deposits -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-deposits-inc.json 2> test-audit-deposits-inc.log || exit_fail "incremental deposits audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-reserves -i -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-reserves.json 2> test-audit-reserves.log || exit_fail "reserves audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-reserves -i -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-reserves-inc.json 2> test-audit-reserves-inc.log || exit_fail "incremental reserves audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-wire -i -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-wire.json 2> test-wire-audit.log || exit_fail "wire audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-wire -i -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-wire-inc.json 2> test-wire-audit-inc.log || exit_fail "wire audit failed"
    echo -n "."

    echo " DONE"
}


# Cleanup to run after the auditor
function post_audit () {
    cleanup
    echo "DONE"
    echo -n "TeXing ."
    taler-helper-auditor-render.py test-audit-aggregation.json test-audit-coins.json test-audit-deposits.json test-audit-reserves.json test-audit-wire.json < ../../contrib/auditor-report.tex.j2 > test-report.tex || exit_fail "Renderer failed"

    echo -n "."
    timeout 10 pdflatex test-report.tex >/dev/null || exit_fail "pdflatex failed"
    echo -n "."
    timeout 10 pdflatex test-report.tex >/dev/null
    echo " DONE"
}


# Run audit process on current database, including report
# generation.  Pass "aggregator" as $1 to run
# $ taler-exchange-aggregator
# before auditor (to trigger pending wire transfers).
function run_audit () {
    pre_audit ${1:-no}
    audit_only
    post_audit

}


# Do a full reload of the (original) database
full_reload()
{
    echo -n "Doing full reload of the database... "
    dropdb $DB 2> /dev/null || true
    createdb -T template0 $DB || exit_skip "could not create database"
    # Import pre-generated database, -q(ietly) using single (-1) transaction
    psql -Aqt $DB -q -1 -f ${BASEDB}.sql > /dev/null || exit_skip "Failed to load database"
    echo "DONE"
}


function test_0() {

echo "===========0: normal run with aggregator==========="
run_audit aggregator

echo "Checking output"
# if an emergency was detected, that is a bug and we should fail
echo -n "Test for emergencies... "
jq -e .emergencies[0] < test-audit-coins.json > /dev/null && exit_fail "Unexpected emergency detected in ordinary run" || echo PASS
echo -n "Test for deposit confirmation emergencies... "
jq -e .deposit_confirmation_inconsistencies[0] < test-audit-deposits.json > /dev/null && exit_fail "Unexpected deposit confirmation inconsistency detected" || echo PASS
echo -n "Test for emergencies by count... "
jq -e .emergencies_by_count[0] < test-audit-coins.json > /dev/null && exit_fail "Unexpected emergency by count detected in ordinary run" || echo PASS

echo -n "Test for wire inconsistencies... "
jq -e .wire_out_amount_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected wire out inconsistency detected in ordinary run"
jq -e .reserve_in_amount_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected reserve in inconsistency detected in ordinary run"
jq -e .missattribution_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected missattribution inconsistency detected in ordinary run"
jq -e .row_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected row inconsistency detected in ordinary run"
jq -e .denomination_key_validity_withdraw_inconsistencies[0] < test-audit-reserves.json > /dev/null && exit_fail "Unexpected denomination key withdraw inconsistency detected in ordinary run"
jq -e .row_minor_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected minor row inconsistency detected in ordinary run"
jq -e .lag_details[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected lag detected in ordinary run"
jq -e .wire_format_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected wire format inconsistencies detected in ordinary run"


# TODO: check operation balances are correct (once we have all transaction types and wallet is deterministic)
# TODO: check revenue summaries are correct (once we have all transaction types and wallet is deterministic)

echo PASS

LOSS=`jq -r .total_bad_sig_loss < test-audit-aggregation.json`
if test $LOSS != "TESTKUDOS:0"
then
    exit_fail "Wrong total bad sig loss from aggregation, got unexpected loss of $LOSS"
fi
LOSS=`jq -r .total_bad_sig_loss < test-audit-coins.json`
if test $LOSS != "TESTKUDOS:0"
then
    exit_fail "Wrong total bad sig loss from coins, got unexpected loss of $LOSS"
fi
LOSS=`jq -r .total_bad_sig_loss < test-audit-reserves.json`
if test $LOSS != "TESTKUDOS:0"
then
    exit_fail "Wrong total bad sig loss from reserves, got unexpected loss of $LOSS"
fi

echo -n "Test for wire amounts... "
WIRED=`jq -r .total_wire_in_delta_plus < test-audit-wire.json`
if test $WIRED != "TESTKUDOS:0"
then
    exit_fail "Expected total wire delta plus wrong, got $WIRED"
fi
WIRED=`jq -r .total_wire_in_delta_minus < test-audit-wire.json`
if test $WIRED != "TESTKUDOS:0"
then
    exit_fail "Expected total wire delta minus wrong, got $WIRED"
fi
WIRED=`jq -r .total_wire_out_delta_plus < test-audit-wire.json`
if test $WIRED != "TESTKUDOS:0"
then
    exit_fail "Expected total wire delta plus wrong, got $WIRED"
fi
WIRED=`jq -r .total_wire_out_delta_minus < test-audit-wire.json`
if test $WIRED != "TESTKUDOS:0"
then
    exit_fail "Expected total wire delta minus wrong, got $WIRED"
fi
WIRED=`jq -r .total_missattribution_in < test-audit-wire.json`
if test $WIRED != "TESTKUDOS:0"
then
    exit_fail "Expected total missattribution in wrong, got $WIRED"
fi
echo PASS

echo -n "Checking for unexpected arithmetic differences "
LOSS=`jq -r .total_arithmetic_delta_plus < test-audit-aggregation.json`
if test $LOSS != "TESTKUDOS:0"
then
    exit_fail "Wrong arithmetic delta from aggregations, got unexpected plus of $LOSS"
fi
LOSS=`jq -r .total_arithmetic_delta_minus < test-audit-aggregation.json`
if test $LOSS != "TESTKUDOS:0"
then
    exit_fail "Wrong arithmetic delta from aggregation, got unexpected minus of $LOSS"
fi
LOSS=`jq -r .total_arithmetic_delta_plus < test-audit-coins.json`
if test $LOSS != "TESTKUDOS:0"
then
    exit_fail "Wrong arithmetic delta from coins, got unexpected plus of $LOSS"
fi
LOSS=`jq -r .total_arithmetic_delta_minus < test-audit-coins.json`
if test $LOSS != "TESTKUDOS:0"
then
    exit_fail "Wrong arithmetic delta from coins, got unexpected minus of $LOSS"
fi
LOSS=`jq -r .total_arithmetic_delta_plus < test-audit-reserves.json`
if test $LOSS != "TESTKUDOS:0"
then
    exit_fail "Wrong arithmetic delta from reserves, got unexpected plus of $LOSS"
fi
LOSS=`jq -r .total_arithmetic_delta_minus < test-audit-reserves.json`
if test $LOSS != "TESTKUDOS:0"
then
    exit_fail "Wrong arithmetic delta from reserves, got unexpected minus of $LOSS"
fi

jq -e .amount_arithmetic_inconsistencies[0] < test-audit-aggregation.json > /dev/null && exit_fail "Unexpected arithmetic inconsistencies from aggregations detected in ordinary run"
jq -e .amount_arithmetic_inconsistencies[0] < test-audit-coins.json > /dev/null && exit_fail "Unexpected arithmetic inconsistencies from coins detected in ordinary run"
jq -e .amount_arithmetic_inconsistencies[0] < test-audit-reserves.json > /dev/null && exit_fail "Unexpected arithmetic inconsistencies from reserves detected in ordinary run"
echo PASS

echo -n "Checking for unexpected wire out differences "
jq -e .wire_out_inconsistencies[0] < test-audit-aggregation.json > /dev/null && exit_fail "Unexpected wire out inconsistencies detected in ordinary run"
echo PASS

# cannot easily undo aggregator, hence full reload
full_reload

}


# Run without aggregator, hence auditor should detect wire
# transfer lag!
function test_1() {

echo "===========1: normal run==========="
run_audit

echo "Checking output"
# if an emergency was detected, that is a bug and we should fail
echo -n "Test for emergencies... "
jq -e .emergencies[0] < test-audit-coins.json > /dev/null && exit_fail "Unexpected emergency detected in ordinary run" || echo PASS
echo -n "Test for emergencies by count... "
jq -e .emergencies_by_count[0] < test-audit-coins.json > /dev/null && exit_fail "Unexpected emergency by count detected in ordinary run" || echo PASS

echo -n "Test for wire inconsistencies... "
jq -e .wire_out_amount_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected wire out inconsistency detected in ordinary run"
jq -e .reserve_in_amount_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected reserve in inconsistency detected in ordinary run"
jq -e .missattribution_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected missattribution inconsistency detected in ordinary run"
jq -e .row_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected row inconsistency detected in ordinary run"
jq -e .row_minor_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected minor row inconsistency detected in ordinary run"
jq -e .wire_format_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected wire format inconsistencies detected in ordinary run"

# TODO: check operation balances are correct (once we have all transaction types and wallet is deterministic)
# TODO: check revenue summaries are correct (once we have all transaction types and wallet is deterministic)

echo PASS

echo -n "Check for lag detection... "

# Check wire transfer lag reported (no aggregator!)
# NOTE: This test is EXPECTED to fail for ~1h after
# re-generating the test database as we do not
# report lag of less than 1h (see GRACE_PERIOD in
# taler-helper-auditor-wire.c)
if [ $DATABASE_AGE -gt 3600 ]
then
    jq -e .lag_details[0] < test-audit-wire.json > /dev/null || exit_fail "Lag not detected in run without aggregator at age $DELTA"

    LAG=`jq -r .total_amount_lag < test-audit-wire.json`
    if test $LAG = "TESTKUDOS:0"
    then
        exit_fail "Expected total lag to be non-zero"
    fi
    echo "PASS"
else
    echo "SKIP (database too new)"
fi


echo -n "Test for wire amounts... "
WIRED=`jq -r .total_wire_in_delta_plus < test-audit-wire.json`
if test $WIRED != "TESTKUDOS:0"
then
    exit_fail "Expected total wire delta plus wrong, got $WIRED"
fi
WIRED=`jq -r .total_wire_in_delta_minus < test-audit-wire.json`
if test $WIRED != "TESTKUDOS:0"
then
    exit_fail "Expected total wire delta minus wrong, got $WIRED"
fi
WIRED=`jq -r .total_wire_out_delta_plus < test-audit-wire.json`
if test $WIRED != "TESTKUDOS:0"
then
    exit_fail "Expected total wire delta plus wrong, got $WIRED"
fi
WIRED=`jq -r .total_wire_out_delta_minus < test-audit-wire.json`
if test $WIRED != "TESTKUDOS:0"
then
    exit_fail "Expected total wire delta minus wrong, got $WIRED"
fi
WIRED=`jq -r .total_missattribution_in < test-audit-wire.json`
if test $WIRED != "TESTKUDOS:0"
then
    exit_fail "Expected total missattribution in wrong, got $WIRED"
fi

# Database was unmodified, no need to undo
echo "OK"
}



# Change recoup amount
function test_2() {

echo "===========2: recoup amount inconsistency==========="
echo "UPDATE recoup SET amount_val=5 WHERE recoup_uuid=1" | psql -Aqt $DB

run_audit

# Reserve balance is now wrong
echo -n "Testing inconsistency detection... "
AMOUNT=`jq -r .reserve_balance_summary_wrong_inconsistencies[0].auditor < test-audit-reserves.json`
if test $AMOUNT != "TESTKUDOS:3"
then
    exit_fail "Reserve auditor amount $AMOUNT is wrong"
fi
AMOUNT=`jq -r .reserve_balance_summary_wrong_inconsistencies[0].exchange < test-audit-reserves.json`
if test $AMOUNT != "TESTKUDOS:0"
then
    exit_fail "Reserve exchange amount $AMOUNT is wrong"
fi
# Coin spent exceeded coin's value
AMOUNT=`jq -r .amount_arithmetic_inconsistencies[0].auditor < test-audit-coins.json`
if test $AMOUNT != "TESTKUDOS:2"
then
    exit_fail "Coin auditor amount $AMOUNT is wrong"
fi
AMOUNT=`jq -r .amount_arithmetic_inconsistencies[0].exchange < test-audit-coins.json`
if test $AMOUNT != "TESTKUDOS:5"
then
    exit_fail "Coin exchange amount $AMOUNT is wrong"
fi
echo OK

# Undo database modification
echo "UPDATE recoup SET amount_val=2 WHERE recoup_uuid=1" | psql -Aqt $DB

}


# Change recoup-refresh amount
function test_3() {

echo "===========3: recoup-refresh amount inconsistency==========="
echo "UPDATE recoup_refresh SET amount_val=5 WHERE recoup_refresh_uuid=1" | psql -Aqt $DB

run_audit

echo -n "Testing inconsistency detection... "
# Coin spent exceeded coin's value
AMOUNT=`jq -r .total_arithmetic_delta_minus < test-audit-coins.json`
if test $AMOUNT != "TESTKUDOS:5"
then
    exit_fail "Arithmetic delta minus amount $AMOUNT is wrong"
fi
AMOUNT=`jq -r .total_arithmetic_delta_plus < test-audit-coins.json`
if test $AMOUNT != "TESTKUDOS:0"
then
    exit_fail "Arithmetic delta plus amount $AMOUNT is wrong"
fi
echo OK

# Undo database modification
echo "UPDATE recoup_refresh SET amount_val=0 WHERE recoup_refresh_uuid=1" | psql -Aqt $DB

}


# Void recoup-refresh entry by 'unrevoking' denomination
function test_4() {

echo "===========4: invalid recoup==========="
echo "DELETE FROM denomination_revocations;" | psql -Aqt $DB

run_audit

echo -n "Testing inconsistency detection... "
# Coin spent exceeded coin's value
jq -e .bad_sig_losses[0] < test-audit-coins.json > /dev/null || exit_fail "Bad recoup not detected"
AMOUNT=`jq -r .total_bad_sig_losses < test-audit-coins.json`
if test $AMOUNT == "TESTKUDOS:0"
then
    exit_fail "Total bad sig losses are wrong"
fi
TAB=`jq -r .row_inconsistencies[0].table < test-audit-reserves.json`
if test $TAB != "recoup"
then
    exit_fail "Wrong table for row inconsistency, got $TAB"
fi
echo OK

# Undo database modification (can't easily undo DELETE, so full reload)
full_reload

}





# *************** Main test loop starts here **************


# Run all the tests against the database given in $1.
# Sets $fail to 0 on success, non-zero on failure.
check_with_database()
{
    BASEDB=$1
    echo "Running test suite with database $BASEDB using configuration $CONF"

    # Setup database-specific globals
    MASTER_PUB=`cat ${BASEDB}.mpub`

    # Determine database age
    echo "Calculating database age based on ${BASEDB}.age"
    AGE=`cat ${BASEDB}.age`
    NOW=`date +%s`
    # NOTE: expr "fails" if the result is zero.
    DATABASE_AGE=`expr ${NOW} - ${AGE} || true`
    echo "Database age is ${DATABASE_AGE} seconds"

    # Load database
    full_reload

    # Run test suite
    fail=0
    for i in $TESTS
    do
        test_$i
        if test 0 != $fail
        then
            break
        fi
    done
    # echo "Cleanup (disabled, leaving database $DB behind)"
    dropdb $DB
    rm -f test-audit.log test-wire-audit.log
}



# *************** Main logic starts here **************

# ####### Setup globals ######
# Postgres database to use (must match test-auditor.conf)
DB=taler-auditor-test

# Configuration file to use
CONF=test-auditor.conf

# test required commands exist
echo "Testing for jq"
jq -h > /dev/null || exit_skip "jq required"
echo "Testing for taler-bank-manage"
taler-bank-manage --help >/dev/null </dev/null || exit_skip "taler-bank-manage required"
echo "Testing for pdflatex"
which pdflatex > /dev/null </dev/null || exit_skip "pdflatex required"

# check if we should regenerate the database
if test -n "${1:-}"
then
    echo "Custom run, will only run on existing DB."
else
    echo -n "Testing for taler-wallet-cli"
    if taler-wallet-cli -h >/dev/null </dev/null 2>/dev/null
    then
        MYDIR=`mktemp -d /tmp/taler-auditor-basedbXXXXXX`
        echo " FOUND. Generating fresh database at $MYDIR"
        if ./generate-revoke-basedb.sh $MYDIR/basedb
        then
            check_with_database $MYDIR/basedb
            if test x$fail != x0
            then
                exit $fail
            else
                echo "Cleaning up $MYDIR..."
                rm -rf $MYDIR || echo "Removing $MYDIR failed"
            fi
        else
            echo "Generation failed, running only on existing DB"
        fi
    else
        echo " NOT FOUND, running only on existing DB"
    fi
fi

# run tests with pre-build database, if one is available
if test -r revoke-basedb.mpub
then
  check_with_database "revoke-basedb"
else
  fail=77
fi

exit $fail