commonMain.io.github.gaaabliz.kliz.common.util.NetworkUtils.kt Maven / Gradle / Ivy

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package io.github.gaaabliz.kliz.common.util

import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.withContext
import java.io.BufferedReader
import java.io.InputStream
import java.io.InputStreamReader
import java.net.URL

object NetworkUtils {

    fun getStringFromUrl(url: URL): String {
        val sb = StringBuilder()
        var line: String?
        val `in`: InputStream = url.openStream()
        try {
            val reader = BufferedReader(InputStreamReader(`in`))
            while (reader.readLine().also { line = it } != null) {
                sb.append(line).append(System.lineSeparator())
            }
        } finally {
            `in`.close()
        }
        return sb.toString()
    }

    suspend fun downloadFileFromWeb(fileUrl: String): InputStream? {
        return try {
            val url = URL(fileUrl)
            return withContext(Dispatchers.IO) {
                val connection = url.openConnection()
                connection.connect()
                connection.getInputStream()
            }
        } catch (e: Exception) {
            e.printStackTrace()
            null
        }
    }
}