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/*
* Copyright © 2014-2021 The Android Password Store Authors. All Rights Reserved.
* SPDX-License-Identifier: GPL-3.0-only
*/
package dev.msfjarvis.aps.util.proxy
import dev.msfjarvis.aps.util.settings.GitSettings
import java.io.IOException
import java.net.Authenticator
import java.net.InetSocketAddress
import java.net.PasswordAuthentication
import java.net.Proxy
import java.net.ProxySelector
import java.net.SocketAddress
import java.net.URI
import javax.inject.Inject
import javax.inject.Singleton
/** Utility class for [Proxy] handling. */
@Singleton
class ProxyUtils @Inject constructor(private val gitSettings: GitSettings) {
/** Set the default [Proxy] and [Authenticator] for the app based on user provided settings. */
fun setDefaultProxy() {
ProxySelector.setDefault(
object : ProxySelector() {
override fun select(uri: URI?): MutableList<Proxy> {
val host = gitSettings.proxyHost
val port = gitSettings.proxyPort
return if (host == null || port == -1) {
mutableListOf(Proxy.NO_PROXY)
} else {
mutableListOf(Proxy(Proxy.Type.HTTP, InetSocketAddress.createUnresolved(host, port)))
}
}
override fun connectFailed(uri: URI?, sa: SocketAddress?, ioe: IOException?) {
if (uri == null || sa == null || ioe == null) {
throw IllegalArgumentException("Arguments can't be null.")
}
}
}
)
val user = gitSettings.proxyUsername ?: ""
val password = gitSettings.proxyPassword ?: ""
if (user.isEmpty() || password.isEmpty()) {
System.clearProperty(HTTP_PROXY_USER_PROPERTY)
System.clearProperty(HTTP_PROXY_PASSWORD_PROPERTY)
} else {
System.setProperty(HTTP_PROXY_USER_PROPERTY, user)
System.setProperty(HTTP_PROXY_PASSWORD_PROPERTY, password)
}
Authenticator.setDefault(
object : Authenticator() {
override fun getPasswordAuthentication(): PasswordAuthentication? {
return if (requestorType == RequestorType.PROXY) {
PasswordAuthentication(user, password.toCharArray())
} else {
null
}
}
}
)
}
companion object {
private const val HTTP_PROXY_USER_PROPERTY = "http.proxyUser"
private const val HTTP_PROXY_PASSWORD_PROPERTY = "http.proxyPassword"
}
}
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