#!/usr/bin/env bats   -*- bats -*-
#
# Tests for 'podman cp'
#
# ASSUMPTION FOR ALL THESE TESTS: /tmp in the container starts off empty
#

load helpers

# Create two random-name random-content files in /tmp in the container
# podman-cp them into the host using '/tmp/*', i.e. asking podman to
# perform wildcard expansion in the container. We should get both
# files copied into the host.
@test "podman cp * - wildcard copy multiple files from container to host" {
    srcdir=$PODMAN_TMPDIR/cp-test-in
    dstdir=$PODMAN_TMPDIR/cp-test-out
    mkdir -p $srcdir $dstdir

    rand_filename1=$(random_string 20)
    rand_content1=$(random_string 50)
    rand_filename2=$(random_string 20)
    rand_content2=$(random_string 50)

    run_podman run --name cpcontainer $IMAGE sh -c \
               "echo $rand_content1 >/tmp/$rand_filename1;
                echo $rand_content2 >/tmp/$rand_filename2"

    run_podman cp 'cpcontainer:/tmp/*' $dstdir

    test -e $dstdir/$rand_filename1 || die "file 1 not copied from container"
    test -e $dstdir/$rand_filename2 || die "file 2 not copied from container"

    is "$(<$dstdir/$rand_filename1)" "$rand_content1" "content of file 1"
    is "$(<$dstdir/$rand_filename2)" "$rand_content2" "content of file 2"

    run_podman rm cpcontainer
}


# Create a file on the host; make a symlink in the container pointing
# into host-only space. Try to podman-cp that symlink. It should fail.
@test "podman cp - will not recognize symlink pointing into host space" {
    srcdir=$PODMAN_TMPDIR/cp-test-in
    dstdir=$PODMAN_TMPDIR/cp-test-out
    mkdir -p $srcdir $dstdir
    echo "this file is on the host" >$srcdir/hostfile

    run_podman run --name cpcontainer $IMAGE \
               sh -c "ln -s $srcdir/hostfile /tmp/badlink"
    # This should fail because, from the container's perspective, the symlink
    # points to a nonexistent file
    run_podman 125 cp 'cpcontainer:/tmp/*' $dstdir/

    # FIXME: this might not be the exactly correct error message
    is "$output" ".*error evaluating symlinks.*lstat.*no such file or dir" \
       "Expected error from copying invalid symlink"

    # make sure there are no files in dstdir
    is "$(/bin/ls -1 $dstdir)" "" "incorrectly copied symlink from host"

    run_podman rm cpcontainer
}


# Issue #3829 - like the above, but with a level of indirection in the
# wildcard expansion: create a file on the host; create a symlink in
# the container named 'file1' pointing to this file; then another symlink
# in the container pointing to 'file*' (file star). Try to podman-cp
# this invalid double symlink. It must fail.
@test "podman cp - will not expand globs in host space (#3829)" {
    srcdir=$PODMAN_TMPDIR/cp-test-in
    dstdir=$PODMAN_TMPDIR/cp-test-out
    mkdir -p $srcdir $dstdir
    echo "This file is on the host" > $srcdir/hostfile

    run_podman run --name cpcontainer $IMAGE \
               sh -c "ln -s $srcdir/hostfile file1;ln -s file\* copyme"
    run_podman 125 cp cpcontainer:copyme $dstdir

    is "$output" ".*error evaluating symlinks.*lstat.*no such file or dir" \
       "Expected error from copying invalid symlink"

    # make sure there are no files in dstdir
    is "$(/bin/ls -1 $dstdir)" "" "incorrectly copied symlink from host"

    run_podman rm cpcontainer
}


# Another symlink into host space, this one named '*' (star). cp should fail.
@test "podman cp - will not expand wildcard" {
    srcdir=$PODMAN_TMPDIR/cp-test-in
    dstdir=$PODMAN_TMPDIR/cp-test-out
    mkdir -p $srcdir $dstdir
    echo "This file lives on the host" > $srcdir/hostfile

    run_podman run --name cpcontainer $IMAGE \
               sh -c "ln -s $srcdir/hostfile /tmp/\*"
    run_podman 125 cp 'cpcontainer:/tmp/*' $dstdir

    is "$output" ".*error evaluating symlinks.*lstat.*no such file or dir" \
       "Expected error from copying invalid symlink"

    # dstdir must be empty
    is "$(/bin/ls -1 $dstdir)" "" "incorrectly copied symlink from host"

    run_podman rm cpcontainer
}

function teardown() {
    # In case any test fails, clean up the container we left behind
    run_podman rm -f cpcontainer
    basic_teardown
}

# vim: filetype=sh