mirror of
https://github.com/d4rken-org/capod.git
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darken
11a19da0b8
This commit introduces a new helper function `fromHex()` that converts a HEX string (with optional separators like spaces or hyphens) into a byte array. It also adds a corresponding `toHex()` function for converting a byte array to a HEX string. These helpers are now used in various parts of the codebase, including: - Fake BLE data generation - AirPod key input dialog - RPA checker tests - BaseAirPodsTest Additionally, a unit test for these conversion functions has been added.
30 lines
1.2 KiB
Kotlin
30 lines
1.2 KiB
Kotlin
package eu.darken.capod.common
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import java.util.BitSet
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fun Byte.toHex(): String = String.format("%02X", this)
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fun UByte.toHex(): String = this.toByte().toHex()
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val Byte.upperNibble get() = (this.toInt() shr 4 and 0b1111).toShort()
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val Byte.lowerNibble get() = (this.toInt() and 0b1111).toShort()
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val UByte.upperNibble get() = (this.toInt() shr 4 and 0b1111).toUShort()
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val UByte.lowerNibble get() = (this.toInt() and 0b1111).toUShort()
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fun Byte.isBitSet(pos: Int): Boolean = BitSet.valueOf(arrayOf(this).toByteArray()).get(pos)
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fun UByte.isBitSet(pos: Int): Boolean = this.toByte().isBitSet(pos)
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fun Short.isBitSet(pos: Int): Boolean = this.toByte().isBitSet(pos)
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fun UShort.isBitSet(pos: Int): Boolean = this.toShort().isBitSet(pos)
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fun UShort.toBinaryString(): String = Integer.toBinaryString(this.toInt()).padStart(4, '0')
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fun UByte.toBinaryString(): String = Integer.toBinaryString(this.toInt()).padStart(8, '0')
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fun ByteArray.toHex(separator: String = "-"): String = joinToString(separator) { "%02X".format(it) }
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fun String.fromHex(): ByteArray = this
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.replace(" ", "")
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.replace("-", "")
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.also { require(it.length % 2 == 0) { "Not a HEX string, length: ${it.length}" } }
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.chunked(2).map { it.toInt(16).toByte() }
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.toByteArray()
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