InsanusMokrassar
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tgbotapi
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add checking of data in web app

This commit is contained in:
InsanusMokrassar 2022-04-18 17:26:09 +06:00
parent 705bcbe352
commit 88c62bd51c
2 changed files with 13 additions and 0 deletions
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7
tgbotapi.webapps/src/jsMain/kotlin/dev/inmo/tgbotapi/webapps/CryptoJSExtensions.kt Normal file
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@ -0,0 +1,7 @@
package dev.inmo.tgbotapi.webapps
import dev.inmo.micro_utils.crypto.CryptoJs
fun CryptoJs.HmacSHA256(text: String, key: String) = this.asDynamic().HmacSHA256(text, key).unsafeCast<String>()
fun CryptoJs.hex(text: String) = this.asDynamic().format.Hex(text).unsafeCast<String>()

6
tgbotapi.webapps/src/jsMain/kotlin/dev/inmo/tgbotapi/webapps/WebApp.kt
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@ -1,5 +1,7 @@
package dev.inmo.tgbotapi.webapps
import dev.inmo.micro_utils.crypto.CryptoJS
external class WebApp {
val initData: String
val initDataUnsafe: WebAppInitData
@ -73,3 +75,7 @@ fun WebApp.onMainButtonClicked(eventHandler: EventHandler) = onEvent(EventType.M
* @return The callback which should be used in case you want to turn off events handling
*/
fun WebApp.onViewportChanged(eventHandler: ViewportChangedEventHandler) = onEvent(EventType.ViewportChanged, eventHandler)
fun WebApp.isInitDataSafe(botToken: String) = CryptoJS.hex(
CryptoJS.HmacSHA256(botToken, "WebAppData")
) == initDataUnsafe.hash