InsanusMokrassar/tgbotapi
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Merge branch 'master' into 1.0.0

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InsanusMokrassar
2022-05-01 11:07:22 +06:00
parent 9f451f25f7 37317a1055
commit 9be2b899cb
7 changed files with 66 additions and 3 deletions
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19
tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/utils/Crypto.kt Normal file
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@@ -0,0 +1,19 @@
package dev.inmo.tgbotapi.utils
import dev.inmo.micro_utils.crypto.SourceBytes
import dev.inmo.micro_utils.crypto.SourceString
internal expect fun SourceString.hmacSha256(key: String): String
private val HEX_ARRAY = "0123456789abcdef".toCharArray()
internal fun SourceBytes.hex(): String {
val hexChars = CharArray(size * 2)
for (j in indices) {
val v: Int = this[j].toInt() and 0xFF
hexChars[j * 2] = HEX_ARRAY[v ushr 4]
hexChars[j * 2 + 1] = HEX_ARRAY[v and 0x0F]
}
return hexChars.concatToString()
}
internal fun SourceString.hex(): String = encodeToByteArray().hex()

10
tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/utils/TelegramAPIUrlsKeeper.kt
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@@ -18,6 +18,10 @@ class TelegramAPIUrlsKeeper(
token: String,
hostUrl: String = telegramBotAPIDefaultUrl
) {
val webAppDataSecretKey by lazy {
token.hmacSha256("WebAppData")
}
val commonAPIUrl: String
val fileBaseUrl: String
@@ -28,4 +32,10 @@ class TelegramAPIUrlsKeeper(
}
fun createFileLinkUrl(filePath: String) = "${fileBaseUrl}/$filePath"
/**
* @param rawData Data from [dev.inmo.tgbotapi.webapps.WebApp.initData]
* @param hash Data from [dev.inmo.tgbotapi.webapps.WebApp.initDataUnsafe] from the field [dev.inmo.tgbotapi.webapps.WebAppInitData.hash]
*/
fun checkWebAppLink(rawData: String, hash: String) = rawData.hmacSha256(webAppDataSecretKey).hex() == hash
}

6
tgbotapi.core/src/jsMain/kotlin/dev/inmo/tgbotapi/utils/CryptoActual.kt Normal file
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@@ -0,0 +1,6 @@
package dev.inmo.tgbotapi.utils
import dev.inmo.micro_utils.crypto.CryptoJS
import dev.inmo.micro_utils.crypto.SourceString
actual fun SourceString.hmacSha256(key: String) = CryptoJS.asDynamic().HmacSHA256(this, key).toString().unsafeCast<String>()

14
tgbotapi.core/src/jvmMain/kotlin/dev/inmo/tgbotapi/utils/CryptoActual.kt Normal file
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@@ -0,0 +1,14 @@
package dev.inmo.tgbotapi.utils
import dev.inmo.micro_utils.crypto.SourceString
import javax.crypto.Mac
import javax.crypto.spec.SecretKeySpec
actual fun SourceString.hmacSha256(key: String): String {
val mac = Mac.getInstance("HmacSHA256")
val secretKey = SecretKeySpec(key.toByteArray(), "HmacSHA256")
mac.init(secretKey)
return mac.doFinal(toByteArray()).hex()
}