Send patches - preferably formatted by git format-patch - to patches at archlinux32 dot org.
summaryrefslogtreecommitdiff
path: root/scripts/libmakepkg/integrity/verify_checksum.sh.in
blob: c597f02a7ab2f1e9854783b45f356f9c72878d8c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
#!/bin/bash
#
#   verify_checksum.sh - functions for checking source checksums
#
#   Copyright (c) 2014-2020 Pacman Development Team <pacman-dev@archlinux.org>
#
#   This program is free software; you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation; either version 2 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

[[ -n "$LIBMAKEPKG_INTEGRITY_VERIFY_CHECKSUM_SH" ]] && return
LIBMAKEPKG_INTEGRITY_CHECKSUM_SH=1

LIBRARY=${LIBRARY:-'@libmakepkgdir@'}

source "$LIBRARY/util/message.sh"
source "$LIBRARY/util/pkgbuild.sh"
source "$LIBRARY/util/schema.sh"

check_checksums() {
	local integ a
	declare -A correlation
	(( SKIPCHECKSUMS )) && return 0

	# Initialize a map which we'll use to verify that every source array has at
	# least some kind of checksum array associated with it.
	(( ${#source[*]} )) && correlation['source']=1
	case $1 in
		all)
			for a in "${arch[@]}"; do
				array_build _ source_"$a" && correlation["source_$a"]=1
			done
			;;
		*)
			array_build _ source_"$CARCH" && correlation["source_$CARCH"]=1
			;;
	esac

	for integ in "${known_hash_algos[@]}"; do
		verify_integrity_sums "$integ" && unset "correlation[source]"

		case $1 in
			all)
				for a in "${arch[@]}"; do
					verify_integrity_sums "$integ" "$a" && unset "correlation[source_$a]"
				done
				;;
			*)
				verify_integrity_sums "$integ" "$CARCH" && unset "correlation[source_$CARCH]"
				;;
		esac
	done

	if (( ${#correlation[*]} )); then
		error "$(gettext "Integrity checks are missing for: %s")" "${!correlation[*]}"
		exit 1 # TODO: error code
	fi
}

verify_integrity_one() {
	local source_name=$1 integ=$2 expectedsum=$3

	local file="$(get_filename "$source_name")"
	printf '    %s ... ' "$file" >&2

	if [[ $expectedsum = 'SKIP' ]]; then
		printf '%s\n' "$(gettext "Skipped")" >&2
		return
	fi

	if ! file="$(get_filepath "$file")"; then
		printf '%s\n' "$(gettext "NOT FOUND")" >&2
		return 1
	fi

	local realsum="$("${integ}sum" "$file")"
	realsum="${realsum%% *}"
	if [[ ${expectedsum,,} = "$realsum" ]]; then
		printf '%s\n' "$(gettext "Passed")" >&2
	else
		printf '%s\n' "$(gettext "FAILED")" >&2
		return 1
	fi

	return 0
}

verify_integrity_sums() {
	local integ=$1 arch=$2 integrity_sums=() sources=() srcname

	if [[ $arch ]]; then
		array_build integrity_sums "${integ}sums_$arch"
		srcname=source_$arch
	else
		array_build integrity_sums "${integ}sums"
		srcname=source
	fi

	array_build sources "$srcname"
	if (( ${#integrity_sums[@]} == 0 && ${#sources[@]} == 0 )); then
		return 1
	fi

	if (( ${#integrity_sums[@]} == ${#sources[@]} )); then
		msg "$(gettext "Validating %s files with %s...")" "$srcname" "${integ}sums"
		local idx errors=0
		for (( idx = 0; idx < ${#sources[*]}; idx++ )); do
			verify_integrity_one "${sources[idx]}" "$integ" "${integrity_sums[idx]}" || errors=1
		done

		if (( errors )); then
			error "$(gettext "One or more files did not pass the validity check!")"
			exit 1 # TODO: error code
		fi
	elif (( ${#integrity_sums[@]} )); then
		error "$(gettext "Integrity checks (%s) differ in size from the source array.")" "$integ"
		exit 1 # TODO: error code
	else
		return 1
	fi
}