diff options
Diffstat (limited to 'crypto-pgpainless/src/main')
| -rw-r--r-- | crypto-pgpainless/src/main/kotlin/app/passwordstore/crypto/GpgIdentifier.kt | 48 |
1 files changed, 33 insertions, 15 deletions
diff --git a/crypto-pgpainless/src/main/kotlin/app/passwordstore/crypto/GpgIdentifier.kt b/crypto-pgpainless/src/main/kotlin/app/passwordstore/crypto/GpgIdentifier.kt index 4aa4a57a..29d1fa42 100644 --- a/crypto-pgpainless/src/main/kotlin/app/passwordstore/crypto/GpgIdentifier.kt +++ b/crypto-pgpainless/src/main/kotlin/app/passwordstore/crypto/GpgIdentifier.kt @@ -16,7 +16,7 @@ public sealed class GpgIdentifier { /** Convert a [Long] key ID to a formatted string. */ private fun convertKeyIdToHex(keyId: Long): String { - return convertKeyIdToHex32bit(keyId shr 32) + convertKeyIdToHex32bit(keyId) + return convertKeyIdToHex32bit(keyId shr HEX_32_BIT_COUNT) + convertKeyIdToHex32bit(keyId) } /** @@ -24,8 +24,8 @@ public sealed class GpgIdentifier { * to a lowercase hex ID. */ private fun convertKeyIdToHex32bit(keyId: Long): String { - var hexString = java.lang.Long.toHexString(keyId and 0xffffffffL).lowercase(Locale.ENGLISH) - while (hexString.length < 8) { + var hexString = java.lang.Long.toHexString(keyId and HEX_32_BITMASK).lowercase(Locale.ENGLISH) + while (hexString.length < HEX_32_STRING_LENGTH) { hexString = "0$hexString" } return hexString @@ -38,6 +38,13 @@ public sealed class GpgIdentifier { } public companion object { + private const val HEX_RADIX = 16 + private const val HEX_32_BIT_COUNT = 32 + private const val HEX_32_BITMASK = 0xffffffffL + private const val HEX_32_STRING_LENGTH = 8 + private const val TRUNCATED_FINGERPRINT_LENGTH = 16 + + @Suppress("ReturnCount") public fun fromString(identifier: String): GpgIdentifier? { if (identifier.isEmpty()) return null // Match long key IDs: @@ -45,7 +52,7 @@ public sealed class GpgIdentifier { val maybeLongKeyId = identifier.removePrefix("0x").takeIf { it.matches("[a-fA-F\\d]{16}".toRegex()) } if (maybeLongKeyId != null) { - val keyId = maybeLongKeyId.toULong(16) + val keyId = maybeLongKeyId.toULong(HEX_RADIX) return KeyId(keyId.toLong()) } @@ -57,37 +64,48 @@ public sealed class GpgIdentifier { // Truncating to the long key ID is not a security issue since OpenKeychain only // accepts // non-ambiguous key IDs. - val keyId = maybeFingerprint.takeLast(16).toULong(16) + val keyId = maybeFingerprint.takeLast(TRUNCATED_FINGERPRINT_LENGTH).toULong(HEX_RADIX) return KeyId(keyId.toLong()) } return splitUserId(identifier)?.let { UserId(it) } } - private val USER_ID_PATTERN = Pattern.compile("^(.*?)(?: \\((.*)\\))?(?: <(.*)>)?$") - private val EMAIL_PATTERN = Pattern.compile("^<?\"?([^<>\"]*@[^<>\"]*[.]?[^<>\"]*)\"?>?$") + private object UserIdRegex { + val PATTERN: Pattern = Pattern.compile("^(.*?)(?: \\((.*)\\))?(?: <(.*)>)?$") + const val NAME = 1 + const val EMAIL = 3 + } + + private object EmailRegex { + val PATTERN: Pattern = Pattern.compile("^<?\"?([^<>\"]*@[^<>\"]*[.]?[^<>\"]*)\"?>?$") + const val EMAIL = 1 + } /** * Takes a 'Name (Comment) <Email>' user ID in any of its permutations and attempts to extract * an email from it. */ + @Suppress("NestedBlockDepth") private fun splitUserId(userId: String): String? { if (userId.isNotEmpty()) { - val matcher = USER_ID_PATTERN.matcher(userId) + val matcher = UserIdRegex.PATTERN.matcher(userId) if (matcher.matches()) { - var name = if (matcher.group(1)?.isEmpty() == true) null else matcher.group(1) - var email = matcher.group(3) + var name = + if (matcher.group(UserIdRegex.NAME)?.isEmpty() == true) null + else matcher.group(UserIdRegex.NAME) + var email = matcher.group(UserIdRegex.EMAIL) if (email != null && name != null) { - val emailMatcher = EMAIL_PATTERN.matcher(name) - if (emailMatcher.matches() && email == emailMatcher.group(1)) { - email = emailMatcher.group(1) + val emailMatcher = EmailRegex.PATTERN.matcher(name) + if (emailMatcher.matches() && email == emailMatcher.group(EmailRegex.EMAIL)) { + email = emailMatcher.group(EmailRegex.EMAIL) name = null } } if (email == null && name != null) { - val emailMatcher = EMAIL_PATTERN.matcher(name) + val emailMatcher = EmailRegex.PATTERN.matcher(name) if (emailMatcher.matches()) { - email = emailMatcher.group(1) + email = emailMatcher.group(EmailRegex.EMAIL) } } return email |