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crypt: support timestamped filenames from --b2-versions

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With the file version format standardized in lib/version, `crypt` can
now treat the version strings separately from the encrypted/decrypted
file names. This allows --b2-versions to work with `crypt`.

Fixes #1627

Co-authored-by: Luc Ritchie <luc.ritchie@gmail.com>
This commit is contained in:
Dominik Mydlil
2021-04-06 21:45:34 +02:00
committed by Nick Craig-Wood
parent c163e6b250
commit 3fe2aaf96c
3 changed files with 67 additions and 8 deletions
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12
backend/crypt/cipher_test.go
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@ -160,22 +160,29 @@ func TestEncryptFileName(t *testing.T) {
assert.Equal(t, "p0e52nreeaj0a5ea7s64m4j72s", c.EncryptFileName("1"))
assert.Equal(t, "p0e52nreeaj0a5ea7s64m4j72s/l42g6771hnv3an9cgc8cr2n1ng", c.EncryptFileName("1/12"))
assert.Equal(t, "p0e52nreeaj0a5ea7s64m4j72s/l42g6771hnv3an9cgc8cr2n1ng/qgm4avr35m5loi1th53ato71v0", c.EncryptFileName("1/12/123"))
assert.Equal(t, "p0e52nreeaj0a5ea7s64m4j72s-v2001-02-03-040506-123", c.EncryptFileName("1-v2001-02-03-040506-123"))
assert.Equal(t, "p0e52nreeaj0a5ea7s64m4j72s/l42g6771hnv3an9cgc8cr2n1ng-v2001-02-03-040506-123", c.EncryptFileName("1/12-v2001-02-03-040506-123"))
// Standard mode with directory name encryption off
c, _ = newCipher(NameEncryptionStandard, "", "", false)
assert.Equal(t, "p0e52nreeaj0a5ea7s64m4j72s", c.EncryptFileName("1"))
assert.Equal(t, "1/l42g6771hnv3an9cgc8cr2n1ng", c.EncryptFileName("1/12"))
assert.Equal(t, "1/12/qgm4avr35m5loi1th53ato71v0", c.EncryptFileName("1/12/123"))
assert.Equal(t, "p0e52nreeaj0a5ea7s64m4j72s-v2001-02-03-040506-123", c.EncryptFileName("1-v2001-02-03-040506-123"))
assert.Equal(t, "1/l42g6771hnv3an9cgc8cr2n1ng-v2001-02-03-040506-123", c.EncryptFileName("1/12-v2001-02-03-040506-123"))
// Now off mode
c, _ = newCipher(NameEncryptionOff, "", "", true)
assert.Equal(t, "1/12/123.bin", c.EncryptFileName("1/12/123"))
// Obfuscation mode
c, _ = newCipher(NameEncryptionObfuscated, "", "", true)
assert.Equal(t, "49.6/99.23/150.890/53.!!lipps", c.EncryptFileName("1/12/123/!hello"))
assert.Equal(t, "49.6/99.23/150.890/53-v2001-02-03-040506-123.!!lipps", c.EncryptFileName("1/12/123/!hello-v2001-02-03-040506-123"))
assert.Equal(t, "49.6/99.23/150.890/162.uryyB-v2001-02-03-040506-123.GKG", c.EncryptFileName("1/12/123/hello-v2001-02-03-040506-123.txt"))
assert.Equal(t, "161.\u00e4", c.EncryptFileName("\u00a1"))
assert.Equal(t, "160.\u03c2", c.EncryptFileName("\u03a0"))
// Obfuscation mode with directory name encryption off
c, _ = newCipher(NameEncryptionObfuscated, "", "", false)
assert.Equal(t, "1/12/123/53.!!lipps", c.EncryptFileName("1/12/123/!hello"))
assert.Equal(t, "1/12/123/53-v2001-02-03-040506-123.!!lipps", c.EncryptFileName("1/12/123/!hello-v2001-02-03-040506-123"))
assert.Equal(t, "161.\u00e4", c.EncryptFileName("\u00a1"))
assert.Equal(t, "160.\u03c2", c.EncryptFileName("\u03a0"))
}
@ -194,14 +201,19 @@ func TestDecryptFileName(t *testing.T) {
{NameEncryptionStandard, true, "p0e52nreeaj0a5ea7s64m4j72s/l42g6771hnv3an9cgc8cr2n1ng/qgm4avr35m5loi1th53ato71v0", "1/12/123", nil},
{NameEncryptionStandard, true, "p0e52nreeaj0a5ea7s64m4j72s/l42g6771hnv3an9cgc8cr2n1/qgm4avr35m5loi1th53ato71v0", "", ErrorNotAMultipleOfBlocksize},
{NameEncryptionStandard, false, "1/12/qgm4avr35m5loi1th53ato71v0", "1/12/123", nil},
{NameEncryptionStandard, true, "p0e52nreeaj0a5ea7s64m4j72s-v2001-02-03-040506-123", "1-v2001-02-03-040506-123", nil},
{NameEncryptionOff, true, "1/12/123.bin", "1/12/123", nil},
{NameEncryptionOff, true, "1/12/123.bix", "", ErrorNotAnEncryptedFile},
{NameEncryptionOff, true, ".bin", "", ErrorNotAnEncryptedFile},
{NameEncryptionOff, true, "1/12/123-v2001-02-03-040506-123.bin", "1/12/123-v2001-02-03-040506-123", nil},
{NameEncryptionOff, true, "1/12/123-v1970-01-01-010101-123-v2001-02-03-040506-123.bin", "1/12/123-v1970-01-01-010101-123-v2001-02-03-040506-123", nil},
{NameEncryptionOff, true, "1/12/123-v1970-01-01-010101-123-v2001-02-03-040506-123.txt.bin", "1/12/123-v1970-01-01-010101-123-v2001-02-03-040506-123.txt", nil},
{NameEncryptionObfuscated, true, "!.hello", "hello", nil},
{NameEncryptionObfuscated, true, "hello", "", ErrorNotAnEncryptedFile},
{NameEncryptionObfuscated, true, "161.\u00e4", "\u00a1", nil},
{NameEncryptionObfuscated, true, "160.\u03c2", "\u03a0", nil},
{NameEncryptionObfuscated, false, "1/12/123/53.!!lipps", "1/12/123/!hello", nil},
{NameEncryptionObfuscated, false, "1/12/123/53-v2001-02-03-040506-123.!!lipps", "1/12/123/!hello-v2001-02-03-040506-123", nil},
} {
c, _ := newCipher(test.mode, "", "", test.dirNameEncrypt)
actual, actualErr := c.DecryptFileName(test.in)