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Code Issues Releases Wiki Activity

Improve SignatureUtils readability

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This commit is contained in:
Paul Schaub 2023-08-28 16:39:53 +02:00
parent 9f0d8f15fa
commit 7247279412
Signed by: vanitasvitae
GPG key ID: 62BEE9264BF17311
1 changed files with 22 additions and 22 deletions
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44
pgpainless-core/src/main/kotlin/org/pgpainless/signature/SignatureUtils.kt
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@ -24,7 +24,7 @@ class SignatureUtils {
/**
* Extract and return the key expiration date value from the given signature.
* If the signature does not carry a {@link KeyExpirationTime} subpacket, return null.
* If the signature does not carry a [KeyExpirationTime] subpacket, return null.
*
* @param keyCreationDate creation date of the key
* @param signature signature
@ -32,24 +32,24 @@ class SignatureUtils {
*/
@JvmStatic
fun getKeyExpirationDate(keyCreationDate: Date, signature: PGPSignature): Date? {
val expirationPacket: KeyExpirationTime? = SignatureSubpacketsUtil.getKeyExpirationTime(signature)
val expiresInSeconds = expirationPacket?.time ?: 0
val expirationPacket: KeyExpirationTime = SignatureSubpacketsUtil.getKeyExpirationTime(signature) ?: return null
val expiresInSeconds = expirationPacket.time
return datePlusSeconds(keyCreationDate, expiresInSeconds)
}
/**
* Return the expiration date of the signature.
* If the signature has no expiration date, {@link #datePlusSeconds(Date, long)} will return null.
* If the signature has no expiration date, [datePlusSeconds] will return null.
*
* @param signature signature
* @return expiration date of the signature, or null if it does not expire.
*/
@JvmStatic
fun getSignatureExpirationDate(signature: PGPSignature): Date? {
val creationTime = signature.creationTime
val expirationTime = SignatureSubpacketsUtil.getSignatureExpirationTime(signature)
val expiresInSeconds = expirationTime?.time ?: 0
return datePlusSeconds(creationTime, expiresInSeconds)
val expirationTime = SignatureSubpacketsUtil.getSignatureExpirationTime(signature) ?: return null
val expiresInSeconds = expirationTime.time
return datePlusSeconds(signature.creationTime, expiresInSeconds)
}
/**
@ -71,7 +71,7 @@ class SignatureUtils {
}
/**
* Return true, if the expiration date of the {@link PGPSignature} lays in the past.
* Return true, if the expiration date of the [PGPSignature] lays in the past.
* If no expiration date is present in the signature, it is considered non-expired.
*
* @param signature signature
@ -83,7 +83,7 @@ class SignatureUtils {
}
/**
* Return true, if the expiration date of the given {@link PGPSignature} is past the given comparison {@link Date}.
* Return true, if the expiration date of the given [PGPSignature] is past the given comparison [Date].
* If no expiration date is present in the signature, it is considered non-expiring.
*
* @param signature signature
@ -92,15 +92,14 @@ class SignatureUtils {
*/
@JvmStatic
fun isSignatureExpired(signature: PGPSignature, referenceTime: Date): Boolean {
val expirationDate = getSignatureExpirationDate(signature)
return expirationDate != null && referenceTime >= expirationDate
val expirationDate = getSignatureExpirationDate(signature) ?: return false
return referenceTime >= expirationDate
}
/**
* Return true if the provided signature is a hard revocation.
* Hard revocations are revocation signatures which either carry a revocation reason of
* {@link RevocationAttributes.Reason#KEY_COMPROMISED} or {@link RevocationAttributes.Reason#NO_REASON},
* or no reason at all.
* [Reason.KEY_COMPROMISED] or [Reason.NO_REASON], or no reason at all.
*
* @param signature signature
* @return true if signature is a hard revocation
@ -133,7 +132,7 @@ class SignatureUtils {
}
/**
* Read and return {@link PGPSignature PGPSignatures}.
* Read and return [PGPSignatures][PGPSignature].
* This method can deal with signatures that may be binary, armored and may contain marker packets.
*
* @param inputStream input stream
@ -171,9 +170,9 @@ class SignatureUtils {
}
/**
* Determine the issuer key-id of a {@link PGPSignature}.
* This method first inspects the {@link IssuerKeyID} subpacket of the signature and returns the key-id if present.
* If not, it inspects the {@link org.bouncycastle.bcpg.sig.IssuerFingerprint} packet and retrieves the key-id from the fingerprint.
* Determine the issuer key-id of a [PGPSignature].
* This method first inspects the [org.bouncycastle.bcpg.sig.IssuerKeyID] subpacket of the signature and returns the key-id if present.
* If not, it inspects the [org.bouncycastle.bcpg.sig.IssuerFingerprint] packet and retrieves the key-id from the fingerprint.
*
* Otherwise, it returns 0.
* @param signature signature
@ -238,10 +237,11 @@ class SignatureUtils {
*/
@JvmStatic
fun getSignaturesOverUserIdBy(key: PGPPublicKey, userId: String, issuer: Long): List<PGPSignature> {
return key.getSignaturesForID(userId)
?.asSequence()
?.filter { it.keyID == issuer }
?.toList() ?: listOf()
val signatures = key.getSignaturesForID(userId) ?: return listOf()
return signatures
.asSequence()
.filter { it.keyID == issuer }
.toList()
}
@JvmStatic