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809a34a870
We want to make sure that internally-forwarded messages don't end up "bubbling up" when they aren't actually the cryptographic payload. Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
133 lines
8.1 KiB
Bash
Executable file
133 lines
8.1 KiB
Bash
Executable file
#!/usr/bin/env bash
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# TODO:
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# * check S/MIME as well as PGP/MIME
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test_description='Message decryption with protected headers'
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. $(dirname "$0")/test-lib.sh || exit 1
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##################################################
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add_gnupg_home
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add_email_corpus protected-headers
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test_begin_subtest "verify protected header is not visible without decryption"
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output=$(notmuch show --format=json id:protected-header@crypto.notmuchmail.org)
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test_json_nodes <<<"$output" \
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'no_crypto_info:[0][0][0]["crypto"]={}' \
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'subject:[0][0][0]["headers"]["Subject"]="Subject Unavailable"'
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test_begin_subtest "verify protected header is visible with decryption"
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output=$(notmuch show --decrypt=true --format=json id:protected-header@crypto.notmuchmail.org)
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test_json_nodes <<<"$output" \
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'crypto:[0][0][0]["crypto"]={"decrypted": {"status": "full", "header-mask": {"Subject": "Subject Unavailable"}}}' \
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'subject:[0][0][0]["headers"]["Subject"]="This is a protected header"'
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test_begin_subtest "when no external header is present, show masked subject as null"
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output=$(notmuch show --decrypt=true --format=json id:subjectless-protected-header@crypto.notmuchmail.org)
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test_json_nodes <<<"$output" \
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'crypto:[0][0][0]["crypto"]={"decrypted": {"status": "full", "header-mask": {"Subject": null}}}' \
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'subject:[0][0][0]["headers"]["Subject"]="This is a protected header"'
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test_begin_subtest "misplaced protected headers should not be made visible during decryption"
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output=$(notmuch show --decrypt=true --format=json id:misplaced-protected-header@crypto.notmuchmail.org)
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test_json_nodes <<<"$output" \
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'crypto:[0][0][0]["crypto"]={"decrypted": {"status": "full"}}' \
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'subject:[0][0][0]["headers"]["Subject"]="Subject Unavailable"'
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test_begin_subtest "verify double-wrapped phony protected header is not visible when inner decryption fails"
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output=$(notmuch show --decrypt=true --format=json id:double-wrapped-with-phony-protected-header@crypto.notmuchmail.org)
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test_json_nodes <<<"$output" \
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'crypto:[0][0][0]["crypto"]={"decrypted": {"status": "full"}}' \
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'subject:[0][0][0]["headers"]["Subject"]="Subject Unavailable"'
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test_begin_subtest "cleartext phony protected headers should not be made visible when decryption fails"
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output=$(notmuch show --decrypt=true --format=json id:phony-protected-header-bad-encryption@crypto.notmuchmail.org)
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test_json_nodes <<<"$output" \
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'no_crypto_info:[0][0][0]["crypto"]={}' \
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'subject:[0][0][0]["headers"]["Subject"]="Subject Unavailable"'
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test_begin_subtest "wrapped protected headers should not be made visible during decryption"
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output=$(notmuch show --decrypt=true --format=json id:wrapped-protected-header@crypto.notmuchmail.org)
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test_json_nodes <<<"$output" \
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'crypto:[0][0][0]["crypto"]={"decrypted": {"status": "partial"}}' \
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'subject:[0][0][0]["headers"]["Subject"]="[mailing-list] Subject Unavailable"'
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test_begin_subtest "internal headers without protected-header attribute should be skipped"
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output=$(notmuch show --decrypt=true --format=json id:no-protected-header-attribute@crypto.notmuchmail.org)
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test_json_nodes <<<"$output" \
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'crypto:[0][0][0]["crypto"]={"decrypted": {"status": "full"}}' \
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'subject:[0][0][0]["headers"]["Subject"]="Subject Unavailable"'
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test_begin_subtest "verify nested message/rfc822 protected header is visible"
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output=$(notmuch show --decrypt=true --format=json id:nested-rfc822-message@crypto.notmuchmail.org)
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test_json_nodes <<<"$output" \
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'crypto:[0][0][0]["crypto"]={"decrypted": {"status": "full", "header-mask": {"Subject": "Subject Unavailable"}}}' \
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'subject:[0][0][0]["headers"]["Subject"]="This is a message using draft-melnikov-smime-header-signing"'
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test_begin_subtest "show cryptographic envelope on signed mail"
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output=$(notmuch show --verify --format=json id:simple-signed-mail@crypto.notmuchmail.org)
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test_json_nodes <<<"$output" \
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'crypto:[0][0][0]["crypto"]={"signed": {"status": [{"created": 1525609971, "fingerprint": "'$FINGERPRINT'", "userid": "'"$SELF_USERID"'", "status": "good"}]}}'
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test_begin_subtest "verify signed protected header"
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output=$(notmuch show --verify --format=json id:signed-protected-header@crypto.notmuchmail.org)
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test_json_nodes <<<"$output" \
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'crypto:[0][0][0]["crypto"]={"signed": {"status": [{"created": 1525350527, "fingerprint": "'$FINGERPRINT'", "userid": "'"$SELF_USERID"'", "status": "good"}], "headers": ["Subject"]}}'
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test_begin_subtest "protected subject does not leak by default in replies"
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output=$(notmuch reply --decrypt=true --format=json id:protected-header@crypto.notmuchmail.org)
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test_json_nodes <<<"$output" \
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'crypto:["original"]["crypto"]={"decrypted": {"status": "full", "header-mask": {"Subject": "Subject Unavailable"}}}' \
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'subject:["original"]["headers"]["Subject"]="This is a protected header"' \
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'reply-subject:["reply-headers"]["Subject"]="Re: Subject Unavailable"'
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test_begin_subtest "protected subject is not indexed by default"
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output=$(notmuch search --output=messages 'subject:"This is a protected header"')
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test_expect_equal "$output" ''
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test_begin_subtest "reindex message with protected header"
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test_expect_success 'notmuch reindex --decrypt=true id:protected-header@crypto.notmuchmail.org'
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test_begin_subtest "protected subject is indexed when cleartext is indexed"
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output=$(notmuch search --output=messages 'subject:"This is a protected header"')
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test_expect_equal "$output" 'id:protected-header@crypto.notmuchmail.org'
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test_begin_subtest "indexed protected subject is visible in search"
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output=$(notmuch search --format=json 'id:protected-header@crypto.notmuchmail.org')
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test_json_nodes <<<"$output" \
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'subject:[0]["subject"]="This is a protected header"'
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test_begin_subtest "verify correct protected header when submessage exists"
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output=$(notmuch show --decrypt=true --format=json id:encrypted-message-with-forwarded-attachment@crypto.notmuchmail.org)
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test_json_nodes <<<"$output" \
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'crypto:[0][0][0]["crypto"]={"decrypted": {"status": "full", "header-mask": {"Subject": "Subject Unavailable"}}}' \
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'subject:[0][0][0]["headers"]["Subject"]="This is the cryptographic envelope subject"'
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test_begin_subtest "verify protected header is both signed and encrypted"
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output=$(notmuch show --decrypt=true --format=json id:encrypted-signed@crypto.notmuchmail.org)
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test_json_nodes <<<"$output" \
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'crypto:[0][0][0]["crypto"]={
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"signed":{"status": [{"status": "good", "fingerprint": "'$FINGERPRINT'", "userid": "'"$SELF_USERID"'", "created": 1525812676}],
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"encrypted": true, "headers": ["Subject"]},"decrypted": {"status": "full", "header-mask": {"Subject": "Subject Unavailable"}}}' \
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'subject:[0][0][0]["headers"]["Subject"]="Rhinoceros dinner"'
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test_begin_subtest "verify protected header is signed even when not masked"
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output=$(notmuch show --decrypt=true --format=json id:encrypted-signed-not-masked@crypto.notmuchmail.org)
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test_json_nodes <<<"$output" \
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'crypto:[0][0][0]["crypto"]={
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"signed":{"status": [{"status": "good", "fingerprint": "'$FINGERPRINT'", "userid": "'"$SELF_USERID"'", "created": 1525812676}],
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"encrypted": true, "headers": ["Subject"]},"decrypted": {"status": "full"}}' \
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'subject:[0][0][0]["headers"]["Subject"]="Rhinoceros dinner"'
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test_begin_subtest "reindex everything, ensure headers are as expected"
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notmuch reindex --decrypt=true from:test_suite@notmuchmail.org
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output=$(notmuch search --output=messages 'subject:"protected header" or subject:"Rhinoceros" or subject:"draft-melnikov-smime-header-signing" or subject:"valid"' | sort)
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test_expect_equal "$output" 'id:encrypted-signed-not-masked@crypto.notmuchmail.org
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id:encrypted-signed@crypto.notmuchmail.org
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id:nested-rfc822-message@crypto.notmuchmail.org
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id:protected-header@crypto.notmuchmail.org
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id:subjectless-protected-header@crypto.notmuchmail.org'
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test_done
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