BotCommandNameRegex and strict check of incoming command

CHANGELOG.md

@@ -63,6 +63,8 @@
         * All extensions like `CaptionedInput#toHtmlCaptions`
         * All helper extensions for `List<BaseMessageUpdate>`
         * All `RequestsExecutor#executeAsync` and `RequestsExecutor#executeUnsafe`
+    * `BotCommand` now more strictly check commands which passed to it
+        * Regex `BotCommandNameRegex` was added
 * `TelegramBotAPI-extensions-api`:
     * A lot of `RequesstExecutor#getChat` extensions was added for more explicit types showing
     * New `RequesstExecutor#setMyCommands` extension was added

TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/BotCommand.kt

@@ -1,8 +1,11 @@
 package com.github.insanusmokrassar.TelegramBotAPI.types
 
+import com.github.insanusmokrassar.TelegramBotAPI.utils.throwRangeError
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 
+val BotCommandNameRegex = Regex("[a-z_0-9]{1,32}")
+
 @Serializable
 data class BotCommand(
     @SerialName(botCommandField)
@@ -12,10 +15,13 @@ data class BotCommand(
 ) {
     init {
         if (command.length !in botCommandLengthLimit) {
-            error("Command size must be in range $botCommandLengthLimit, but actually have length ${command.length}")
+            throwRangeError("Command name size", botCommandLengthLimit, command.length)
+        }
+        if (!command.matches(BotCommandNameRegex)) {
+            error("Bot command must contains only lowercase English letters, digits and underscores, but incoming command was $command")
         }
         if (description.length !in botCommandDescriptionLimit) {
-            error("Command description size must be in range $botCommandDescriptionLimit, but actually have length ${description.length}")
+            throwRangeError("Command description size", botCommandDescriptionLimit, description.length)
         }
     }
 }