notmuch/test/T356-protected-headers.sh
Daniel Kahn Gillmor 5c3a44681f indexing: record protected subject when indexing cleartext
When indexing the cleartext of an encrypted message, record any
protected subject in the database, which should make it findable and
visible in search.

Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
2019-05-29 08:14:44 -03:00

102 lines
5.9 KiB
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Executable file

#!/usr/bin/env bash
# TODO:
# * check S/MIME as well as PGP/MIME
test_description='Message decryption with protected headers'
. $(dirname "$0")/test-lib.sh || exit 1
##################################################
add_gnupg_home
add_email_corpus protected-headers
test_begin_subtest "verify protected header is not visible without decryption"
output=$(notmuch show --format=json id:protected-header@crypto.notmuchmail.org)
test_json_nodes <<<"$output" \
'no_crypto_info:[0][0][0]["crypto"]={}' \
'subject:[0][0][0]["headers"]["Subject"]="Subject Unavailable"'
test_begin_subtest "verify protected header is visible with decryption"
output=$(notmuch show --decrypt=true --format=json id:protected-header@crypto.notmuchmail.org)
test_json_nodes <<<"$output" \
'crypto:[0][0][0]["crypto"]={"decrypted": {"status": "full", "header-mask": {"Subject": "Subject Unavailable"}}}' \
'subject:[0][0][0]["headers"]["Subject"]="This is a protected header"'
test_begin_subtest "when no external header is present, show masked subject as null"
output=$(notmuch show --decrypt=true --format=json id:subjectless-protected-header@crypto.notmuchmail.org)
test_json_nodes <<<"$output" \
'crypto:[0][0][0]["crypto"]={"decrypted": {"status": "full", "header-mask": {"Subject": null}}}' \
'subject:[0][0][0]["headers"]["Subject"]="This is a protected header"'
test_begin_subtest "misplaced protected headers should not be made visible during decryption"
output=$(notmuch show --decrypt=true --format=json id:misplaced-protected-header@crypto.notmuchmail.org)
test_json_nodes <<<"$output" \
'crypto:[0][0][0]["crypto"]={"decrypted": {"status": "full"}}' \
'subject:[0][0][0]["headers"]["Subject"]="Subject Unavailable"'
test_begin_subtest "verify double-wrapped phony protected header is not visible when inner decryption fails"
output=$(notmuch show --decrypt=true --format=json id:double-wrapped-with-phony-protected-header@crypto.notmuchmail.org)
test_json_nodes <<<"$output" \
'crypto:[0][0][0]["crypto"]={"decrypted": {"status": "full"}}' \
'subject:[0][0][0]["headers"]["Subject"]="Subject Unavailable"'
test_begin_subtest "cleartext phony protected headers should not be made visible when decryption fails"
output=$(notmuch show --decrypt=true --format=json id:phony-protected-header-bad-encryption@crypto.notmuchmail.org)
test_json_nodes <<<"$output" \
'no_crypto_info:[0][0][0]["crypto"]={}' \
'subject:[0][0][0]["headers"]["Subject"]="Subject Unavailable"'
test_begin_subtest "wrapped protected headers should not be made visible during decryption"
output=$(notmuch show --decrypt=true --format=json id:wrapped-protected-header@crypto.notmuchmail.org)
test_json_nodes <<<"$output" \
'crypto:[0][0][0]["crypto"]={"decrypted": {"status": "partial"}}' \
'subject:[0][0][0]["headers"]["Subject"]="[mailing-list] Subject Unavailable"'
test_begin_subtest "internal headers without protected-header attribute should be skipped"
output=$(notmuch show --decrypt=true --format=json id:no-protected-header-attribute@crypto.notmuchmail.org)
test_json_nodes <<<"$output" \
'crypto:[0][0][0]["crypto"]={"decrypted": {"status": "full"}}' \
'subject:[0][0][0]["headers"]["Subject"]="Subject Unavailable"'
test_begin_subtest "verify nested message/rfc822 protected header is visible"
output=$(notmuch show --decrypt=true --format=json id:nested-rfc822-message@crypto.notmuchmail.org)
test_json_nodes <<<"$output" \
'crypto:[0][0][0]["crypto"]={"decrypted": {"status": "full", "header-mask": {"Subject": "Subject Unavailable"}}}' \
'subject:[0][0][0]["headers"]["Subject"]="This is a message using draft-melnikov-smime-header-signing"'
test_begin_subtest "show cryptographic envelope on signed mail"
output=$(notmuch show --verify --format=json id:simple-signed-mail@crypto.notmuchmail.org)
test_json_nodes <<<"$output" \
'crypto:[0][0][0]["crypto"]={"signed": {"status": [{"created": 1525609971, "fingerprint": "'$FINGERPRINT'", "userid": "'"$SELF_USERID"'", "status": "good"}]}}'
test_begin_subtest "verify signed protected header"
output=$(notmuch show --verify --format=json id:signed-protected-header@crypto.notmuchmail.org)
test_json_nodes <<<"$output" \
'crypto:[0][0][0]["crypto"]={"signed": {"status": [{"created": 1525350527, "fingerprint": "'$FINGERPRINT'", "userid": "'"$SELF_USERID"'", "status": "good"}], "headers": ["Subject"]}}'
test_begin_subtest "protected subject does not leak by default in replies"
output=$(notmuch reply --decrypt=true --format=json id:protected-header@crypto.notmuchmail.org)
test_json_nodes <<<"$output" \
'crypto:["original"]["crypto"]={"decrypted": {"status": "full", "header-mask": {"Subject": "Subject Unavailable"}}}' \
'subject:["original"]["headers"]["Subject"]="This is a protected header"' \
'reply-subject:["reply-headers"]["Subject"]="Re: Subject Unavailable"'
test_begin_subtest "protected subject is not indexed by default"
output=$(notmuch search --output=messages 'subject:"This is a protected header"')
test_expect_equal "$output" ''
test_begin_subtest "reindex message with protected header"
test_expect_success 'notmuch reindex --decrypt=true id:protected-header@crypto.notmuchmail.org'
test_begin_subtest "protected subject is indexed when cleartext is indexed"
output=$(notmuch search --output=messages 'subject:"This is a protected header"')
test_expect_equal "$output" 'id:protected-header@crypto.notmuchmail.org'
test_begin_subtest "indexed protected subject is visible in search"
output=$(notmuch search --format=json 'id:protected-header@crypto.notmuchmail.org')
test_json_nodes <<<"$output" \
'subject:[0]["subject"]="This is a protected header"'
test_done