71 lines
2.5 KiB
Kotlin
71 lines
2.5 KiB
Kotlin
/*
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* Copyright (C) 2020 Conny Duck
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*
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* This file is part of Pixelcat.
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*
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* Pixelcat is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Pixelcat is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package at.connyduck.pixelcat.network
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import at.connyduck.pixelcat.db.AccountManager
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import kotlinx.coroutines.runBlocking
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import okhttp3.HttpUrl
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import okhttp3.Interceptor
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import okhttp3.Response
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import java.io.IOException
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class InstanceSwitchAuthInterceptor(private val accountManager: AccountManager) : Interceptor {
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@Throws(IOException::class)
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override fun intercept(chain: Interceptor.Chain): Response {
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val originalRequest = chain.request()
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// only switch domains if the request comes from retrofit
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if (originalRequest.url.host == FediverseApi.PLACEHOLDER_DOMAIN) {
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val builder = originalRequest.newBuilder()
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// when using retrofit we want json responses
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builder.addHeader("Accept", "application/json")
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val currentAccount = runBlocking { accountManager.activeAccount() }
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val instanceHeader = originalRequest.header(FediverseApi.DOMAIN_HEADER)
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if (instanceHeader != null) {
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// use domain explicitly specified in custom header
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builder.url(swapHost(originalRequest.url, instanceHeader))
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builder.removeHeader(FediverseApi.DOMAIN_HEADER)
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} else if (currentAccount != null) {
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// use domain of current account
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builder.url(swapHost(originalRequest.url, currentAccount.domain))
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.header(
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"Authorization",
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"Bearer ${currentAccount.auth.accessToken}"
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)
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}
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val newRequest = builder.build()
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return chain.proceed(newRequest)
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} else {
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return chain.proceed(originalRequest)
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}
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}
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private fun swapHost(url: HttpUrl, host: String): HttpUrl {
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return url.newBuilder().host(host).build()
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}
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}
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