Add SELinux status (#98)

* manager: Get SELinux status and display it at home

Signed-off-by: xiaoleGun <1592501605@qq.com>
Co-authored-by: xiaoleGun <1592501605@qq.com>

manager/app/src/main/java/me/weishu/kernelsu/ui/screen/Home.kt

@@ -24,7 +24,6 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.font.FontFamily
-import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import com.ramcosta.composedestinations.annotation.Destination
@@ -34,9 +33,9 @@ import kotlinx.coroutines.launch
 import me.weishu.kernelsu.*
 import me.weishu.kernelsu.R
 import me.weishu.kernelsu.ui.screen.destinations.SettingScreenDestination
-import me.weishu.kernelsu.ui.util.LinkifyText
 import me.weishu.kernelsu.ui.util.LocalSnackbarHost
 import me.weishu.kernelsu.ui.util.reboot
+import me.weishu.kernelsu.ui.util.getSELinuxStatus
 
 @OptIn(ExperimentalMaterial3Api::class)
 @RootNavGraph(start = true)
@@ -227,6 +226,9 @@ private fun InfoCard() {
             Spacer(Modifier.height(24.dp))
             InfoCardItem(stringResource(R.string.home_securitypatch), Build.VERSION.SECURITY_PATCH)
 
+            Spacer(Modifier.height(24.dp))
+            InfoCardItem(stringResource(R.string.home_selinux_status), getSELinuxStatus())
+
             val copiedMessage = stringResource(R.string.home_copied_to_clipboard)
             TextButton(
                 modifier = Modifier.align(Alignment.End),

manager/app/src/main/java/me/weishu/kernelsu/ui/util/SELinuxChecker.kt

@@ -0,0 +1,32 @@
+package me.weishu.kernelsu.ui.util
+
+import androidx.compose.ui.res.stringResource
+import androidx.compose.runtime.Composable
+import com.topjohnwu.superuser.Shell
+import me.weishu.kernelsu.R
+
+@Composable
+fun getSELinuxStatus(): String {
+    val shell = Shell.Builder.create()
+        .setFlags(Shell.FLAG_REDIRECT_STDERR)
+        .build("sh")
+
+    val list = ArrayList<String>()
+    val result = shell.newJob().add("getenforce").to(list, list).exec()
+    val output = result.out.joinToString("\n").trim()
+
+    if (result.isSuccess) {
+        return when (output) {
+            "Enforcing" -> stringResource(R.string.selinux_status_enforcing)
+            "Permissive" -> stringResource(R.string.selinux_status_permissive)
+            "Disabled" -> stringResource(R.string.selinux_status_disabled)
+            else -> stringResource(R.string.selinux_status_unknown)
+        }
+    }
+
+    return if (output.endsWith("Permission denied")) {
+        stringResource(R.string.selinux_status_enforcing)
+    } else {
+        stringResource(R.string.selinux_status_unknown)
+    }
+}

manager/app/src/main/res/values-zh-rCN/strings.xml

@@ -16,6 +16,11 @@
     <string name="home_abi">ABI 支持</string>
     <string name="home_fingerprint">系统指纹</string>
     <string name="home_securitypatch">安全补丁</string>
+    <string name="home_selinux_status">SELinux 状态</string>
+    <string name="selinux_status_disabled">被禁用</string>
+    <string name="selinux_status_enforcing">强制执行</string>
+    <string name="selinux_status_permissive">宽容模式</string>
+    <string name="selinux_status_unknown">未知</string>
     <string name="superuser">超级用户</string>
     <string name="superuser_failed_to_grant_root">无法为 %d 授予 Root</string>
     <string name="module_failed_to_enable">无法启用模块: %s</string>

manager/app/src/main/res/values-zh-rHK/strings.xml

@@ -16,6 +16,11 @@
     <string name="home_abi">ABI 支持</string>
     <string name="home_fingerprint">系统指纹</string>
     <string name="home_securitypatch">安全补丁</string>
+    <string name="home_selinux_status">SELinux 狀態</string>
+    <string name="selinux_status_disabled">被禁用</string>
+    <string name="selinux_status_enforcing">強制執行</string>
+    <string name="selinux_status_permissive">寬容模式</string>
+    <string name="selinux_status_unknown">未知</string>
     <string name="superuser">超級用戶</string>
     <string name="superuser_failed_to_grant_root">无法为 %d 授予 Root</string>
     <string name="module_failed_to_enable">无法启用模块: %s</string>

manager/app/src/main/res/values-zh-rTW/strings.xml

@@ -16,6 +16,11 @@
     <string name="home_abi">ABI 支持</string>
     <string name="home_fingerprint">系统指纹</string>
     <string name="home_securitypatch">安全补丁</string>
+    <string name="home_selinux_status">SELinux 狀態</string>
+    <string name="selinux_status_disabled">被禁用</string>
+    <string name="selinux_status_enforcing">強制執行</string>
+    <string name="selinux_status_permissive">寬容模式</string>
+    <string name="selinux_status_unknown">未知</string>
     <string name="superuser">超級用戶</string>
     <string name="superuser_failed_to_grant_root">无法为 %d 授予 Root</string>
     <string name="module_failed_to_enable">无法启用模块: %s</string>

manager/app/src/main/res/values/strings.xml

@@ -19,6 +19,11 @@
     <string name="home_fingerprint">Fingerprint</string>
     <string name="home_securitypatch">Security Patch</string>
 
+    <string name="home_selinux_status">SELinux status</string>
+    <string name="selinux_status_disabled">Disabled</string>
+    <string name="selinux_status_enforcing">Enforcing</string>
+    <string name="selinux_status_permissive">Permissive</string>
+    <string name="selinux_status_unknown">Unknown</string>
     <string name="superuser">Superuser</string>
     <string name="superuser_failed_to_grant_root">Failed to grant root for %d</string>
     <string name="module_failed_to_enable">Failed to enable module: %s</string>