1 files changed, 74 insertions, 0 deletions

diff --git a/app/src/main/java/org/pacien/tincapp/commands/TincApp.kt b/app/src/main/java/org/pacien/tincapp/commands/TincApp.kt
new file mode 100644
index 0000000..32fc1f9
--- /dev/null
+++ b/app/src/main/java/org/pacien/tincapp/commands/TincApp.kt
@@ -0,0 +1,74 @@
+/*
+ * Tinc App, an Android binding and user interface for the tinc mesh VPN daemon
+ * Copyright (C) 2017-2018 Pacien TRAN-GIRARD
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package org.pacien.tincapp.commands
+
+import org.pacien.tincapp.R
+import org.pacien.tincapp.commands.Executor.runAsyncTask
+import org.pacien.tincapp.context.App
+import org.pacien.tincapp.context.AppPaths
+import org.pacien.tincapp.data.TincConfiguration
+import org.pacien.tincapp.data.VpnInterfaceConfiguration
+import org.pacien.tincapp.utils.PemUtils
+import java.io.FileNotFoundException
+
+/**
+ * @author pacien
+ */
+object TincApp {
+  private val SCRIPT_SUFFIXES = listOf("-up", "-down", "-created", "-accepted")
+  private val STATIC_SCRIPTS = listOf("tinc", "host", "subnet", "invitation").flatMap { s -> SCRIPT_SUFFIXES.map { s + it } }
+
+  private fun listScripts(netName: String) = AppPaths.confDir(netName).listFiles { f -> f.name in STATIC_SCRIPTS } +
+    AppPaths.hostsDir(netName).listFiles { f -> SCRIPT_SUFFIXES.any { f.name.endsWith(it) } }
+
+  fun listPrivateKeys(netName: String) = try {
+    TincConfiguration.fromTincConfiguration(AppPaths.existing(AppPaths.tincConfFile(netName))).let {
+      listOf(
+        it.privateKeyFile ?: AppPaths.defaultRsaPrivateKeyFile(netName),
+        it.ed25519PrivateKeyFile ?: AppPaths.defaultEd25519PrivateKeyFile(netName))
+    }
+  } catch (e: FileNotFoundException) {
+    throw FileNotFoundException(App.getResources().getString(R.string.message_network_config_not_found_format, e.message!!))
+  }
+
+  fun removeScripts(netName: String) = runAsyncTask {
+    listScripts(netName).forEach { it.delete() }
+  }
+
+  fun generateIfaceCfg(netName: String) = runAsyncTask {
+    VpnInterfaceConfiguration
+      .fromInvitation(AppPaths.invitationFile(netName))
+      .write(AppPaths.netConfFile(netName))
+  }
+
+  fun generateIfaceCfgTemplate(netName: String) = runAsyncTask {
+    App.getResources().openRawResource(R.raw.network).use { inputStream ->
+      AppPaths.netConfFile(netName).outputStream().use { inputStream.copyTo(it) }
+    }
+  }
+
+  fun setPassphrase(netName: String, currentPassphrase: String? = null, newPassphrase: String?) = runAsyncTask {
+    listPrivateKeys(netName)
+      .filter { it.exists() }
+      .map { Pair(PemUtils.read(it), it) }
+      .map { Pair(PemUtils.decrypt(it.first, currentPassphrase), it.second) }
+      .map { Pair(if (newPassphrase?.isNotEmpty() == true) PemUtils.encrypt(it.first, newPassphrase) else it.first, it.second) }
+      .forEach { PemUtils.write(it.first, it.second.writer()) }
+  }
+}