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Updated on 2026-08-14

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This commit is contained in:
Tangem 2019-11-08 11:11:18 +03:00
parent bfa7d5dbcd
commit 649cc98fd5
13 changed files with 106 additions and 49 deletions
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2
tangem-core/src/main/java/com/tangem/commands/CheckWalletCommand.kt
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@ -2,13 +2,13 @@ package com.tangem.commands
import com.tangem.CardEnvironment
import com.tangem.common.apdu.CommandApdu
import com.tangem.common.apdu.Instruction
import com.tangem.common.apdu.ResponseApdu
import com.tangem.common.extentions.calculateSha256
import com.tangem.common.extentions.hexToBytes
import com.tangem.common.tlv.Tlv
import com.tangem.common.tlv.TlvMapper
import com.tangem.common.tlv.TlvTag
import com.tangem.enums.Instruction
import com.tangem.tasks.TaskError
class CheckWalletResponse(

2
tangem-core/src/main/java/com/tangem/commands/CommandSerializer.kt
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@ -2,10 +2,10 @@ package com.tangem.commands
import com.tangem.CardEnvironment
import com.tangem.common.apdu.CommandApdu
import com.tangem.common.apdu.Instruction
import com.tangem.common.apdu.ResponseApdu
import com.tangem.common.extentions.toInt
import com.tangem.common.tlv.TlvTag
import com.tangem.enums.Instruction
interface CommandResponse

2
tangem-core/src/main/java/com/tangem/commands/ReadCardCommand.kt
View file

@ -2,13 +2,13 @@ package com.tangem.commands
import com.tangem.CardEnvironment
import com.tangem.common.apdu.CommandApdu
import com.tangem.common.apdu.Instruction
import com.tangem.common.apdu.ResponseApdu
import com.tangem.common.extentions.calculateSha256
import com.tangem.common.tlv.Tlv
import com.tangem.common.tlv.TlvMapper
import com.tangem.common.tlv.TlvTag
import com.tangem.data.SettingsMask
import com.tangem.enums.Instruction
import com.tangem.tasks.TaskError
import java.util.*

2
tangem-core/src/main/java/com/tangem/commands/SignCommand.kt
View file

@ -2,6 +2,7 @@ package com.tangem.commands
import com.tangem.CardEnvironment
import com.tangem.common.apdu.CommandApdu
import com.tangem.common.apdu.Instruction
import com.tangem.common.apdu.ResponseApdu
import com.tangem.common.extentions.calculateSha256
import com.tangem.common.extentions.hexToBytes
@ -9,7 +10,6 @@ import com.tangem.common.tlv.Tlv
import com.tangem.common.tlv.TlvMapper
import com.tangem.common.tlv.TlvTag
import com.tangem.crypto.sign
import com.tangem.enums.Instruction
import com.tangem.tasks.TaskError
class SignResponse(

2
tangem-core/src/main/java/com/tangem/enums/Instruction.kt → tangem-core/src/main/java/com/tangem/common/apdu/Instruction.kt
View file

@ -1,4 +1,4 @@
package com.tangem.enums
package com.tangem.common.apdu
enum class Instruction(var code: Int) {
Unknown(0x00),

2
tangem-core/src/main/java/com/tangem/common/apdu/ResponseApdu.kt
View file

@ -31,7 +31,7 @@ class ResponseApdu(val data: ByteArray) {
}
private fun decrypt(encryptionKey: ByteArray) {
TODO("not implemented")
}
}

2
tangem-core/src/main/java/com/tangem/enums/StatusWord.kt → tangem-core/src/main/java/com/tangem/common/apdu/StatusWord.kt
View file

@ -1,4 +1,4 @@
package com.tangem.enums
package com.tangem.common.apdu
enum class StatusWord (val code: Int, val description: String){

14
tangem-core/src/main/java/com/tangem/tasks/ScanTask.kt
View file

@ -38,7 +38,7 @@ internal class ScanTask : Task<ScanEvent>() {
curve = cardData.curve!!
walletPublickKey = cardData.walletPublicKey!!
} else {
delegate?.onTaskError()
onTaskCompleted(true)
callback(TaskEvent.Completion(TaskError.CardError()))
}
@ -53,16 +53,18 @@ internal class ScanTask : Task<ScanEvent>() {
checkWalletResponse.walletSignature,
curve)
if (verified) {
delegate?.onTaskCompleted()
onTaskCompleted()
callback(TaskEvent.Completion())
callback(TaskEvent.Event(ScanEvent.OnVerifyEvent(true)))
} else {
delegate?.onTaskError()
onTaskCompleted(true)
callback(TaskEvent.Completion(TaskError.VefificationFailed()))
}
}
is CompletionResult.Failure -> {
if (checkWalletEvent.error !is TaskError.UserCancelledError) delegate?.onTaskError()
if (checkWalletEvent.error !is TaskError.UserCancelledError) {
onTaskCompleted(true, checkWalletEvent.error)
}
callback(TaskEvent.Completion(checkWalletEvent.error))
}
}
@ -70,7 +72,9 @@ internal class ScanTask : Task<ScanEvent>() {
}
}
is CompletionResult.Failure -> {
if (readEvent.error !is TaskError.UserCancelledError) delegate?.onTaskError()
if (readEvent.error !is TaskError.UserCancelledError) {
onTaskCompleted(true, readEvent.error)
}
callback(TaskEvent.Completion(readEvent.error))
}
}

14
tangem-core/src/main/java/com/tangem/tasks/SingleCommandTask.kt
View file

@ -10,16 +10,18 @@ class SingleCommandTask<Event : CommandResponse>(
override fun onRun(cardEnvironment: CardEnvironment,
callback: (result: TaskEvent<Event>) -> Unit) {
sendCommand(commandSerializer, cardEnvironment) {
when (it) {
sendCommand(commandSerializer, cardEnvironment) { completionResult ->
when (completionResult) {
is CompletionResult.Success -> {
delegate?.onTaskCompleted()
callback(TaskEvent.Event(it.data))
onTaskCompleted()
callback(TaskEvent.Event(completionResult.data))
callback(TaskEvent.Completion())
}
is CompletionResult.Failure -> {
if (it.error !is TaskError.UserCancelledError) delegate?.onTaskError()
callback(TaskEvent.Completion(it.error))
if (completionResult.error !is TaskError.UserCancelledError) {
onTaskCompleted(true, completionResult.error)
}
callback(TaskEvent.Completion(completionResult.error))
}
}
}

43
tangem-core/src/main/java/com/tangem/tasks/Task.kt
View file

@ -7,7 +7,7 @@ import com.tangem.Log
import com.tangem.commands.CommandResponse
import com.tangem.commands.CommandSerializer
import com.tangem.common.CompletionResult
import com.tangem.enums.StatusWord
import com.tangem.common.apdu.StatusWord
abstract class Task<T> {
@ -22,8 +22,17 @@ abstract class Task<T> {
onRun(cardEnvironment, callback)
}
abstract fun onRun(cardEnvironment: CardEnvironment,
callback: (result: TaskEvent<T>) -> Unit)
protected fun onTaskCompleted(withError: Boolean = false, taskError: TaskError? = null) {
reader?.closeSession()
if (withError) {
delegate?.onTaskError(taskError)
} else {
delegate?.onTaskCompleted()
}
}
protected abstract fun onRun(cardEnvironment: CardEnvironment,
callback: (result: TaskEvent<T>) -> Unit)
protected fun <T : CommandResponse> sendCommand(
commandSerializer: CommandSerializer<T>,
@ -75,31 +84,9 @@ abstract class Task<T> {
}
}
sealed class TaskError(description: String? = null) : Exception(description) {
class UnknownStatus(sw: Int) : TaskError()
class MappingError : TaskError()
class GenericError(description: String? = null) : TaskError(description)
class UserCancelledError() : TaskError()
class Busy() : TaskError()
class ErrorProcessingCommand : TaskError()
class InvalidState : TaskError()
class InsNotSupported : TaskError()
class InvalidParams : TaskError()
class NeedEncryption : TaskError()
class NeedPause : TaskError()
class VefificationFailed : TaskError()
class CardError : TaskError()
class ReaderError() : TaskError()
class SerializeCommandError() : TaskError()
class CardIsMissing() : TaskError()
class EmptyHashes() : TaskError()
class TooMuchHashes() : TaskError()
class HashSizeMustBeEqual() : TaskError()
}
/**
* Returns in callback from tasks
*/
sealed class TaskEvent<T> {
class Event<T>(val data: T) : TaskEvent<T>()
class Completion<T>(val error: TaskError? = null) : TaskEvent<T>()

30
tangem-core/src/main/java/com/tangem/tasks/TaskError.kt Normal file
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@ -0,0 +1,30 @@
package com.tangem.tasks
/**
* An error class that covers typical errors that may occur when performing Tangem SDK tasks.
* Errors are got propagated back within callbacks.
*/
sealed class TaskError(description: String? = null) : Exception(description) {
class UnknownStatus(sw: Int) : TaskError()
class MappingError : TaskError()
class GenericError(description: String? = null) : TaskError(description)
class UserCancelledError() : TaskError()
class Busy() : TaskError()
class ErrorProcessingCommand : TaskError()
class InvalidState : TaskError()
class InsNotSupported : TaskError()
class InvalidParams : TaskError()
class NeedEncryption : TaskError()
class NeedPause : TaskError()
class VefificationFailed : TaskError()
class CardError : TaskError()
class ReaderError() : TaskError()
class SerializeCommandError() : TaskError()
class CardIsMissing() : TaskError()
class EmptyHashes() : TaskError()
class TooMuchHashes() : TaskError()
class HashSizeMustBeEqual() : TaskError()
}