From 92820b20654f51c5aa5802760538b3bfbcb4b90d Mon Sep 17 00:00:00 2001
From: Thomas Kluge <th.kluge@me.com>
Date: Tue, 21 Jan 2020 18:30:45 +0100
Subject: [PATCH] some additional checks for #98

---
 lib/Server.js | 81 +++++++++++++++++++++++++++++++--------------------
 1 file changed, 49 insertions(+), 32 deletions(-)

diff --git a/lib/Server.js b/lib/Server.js
index e4cffd0..5d3a780 100644
--- a/lib/Server.js
+++ b/lib/Server.js
@@ -438,33 +438,41 @@ Server.prototype.handleConfigurationRequest = function(dispatched_request) {
             }
 
             if (parsed.searchParams.get('daemon') !== null) {
-                if (this.hazDaemon()) {
-                    dispatched_request.dispatchFile(null, 'daemon.html', this.addDefaultIndexAttributes({
-                        'message': that.localization.localize('Disable HVL launch at boot'),
-                        'link': '/index/?disabledaemon'
-                    }))
+                if (process.platform === 'linux') {
+                    if (this.hazDaemon()) {
+                        dispatched_request.dispatchFile(null, 'daemon.html', this.addDefaultIndexAttributes({
+                            'message': that.localization.localize('Disable HVL launch at boot'),
+                            'link': '/index/?disabledaemon'
+                        }))
+                    } else {
+                        dispatched_request.dispatchFile(null, 'daemon.html', this.addDefaultIndexAttributes({
+                            'message': that.localization.localize('Enable HVL launch at boot'),
+                            'link': '/index/?enabledaemon'
+                        }))
+                    }
                 } else {
                     dispatched_request.dispatchFile(null, 'daemon.html', this.addDefaultIndexAttributes({
-                        'message': that.localization.localize('Enable HVL launch at boot'),
-                        'link': '/index/?enabledaemon'
+                        'message': that.localization.localize('This is not supported on your os'),
+                        'link': '#'
                     }))
                 }
+
                 cfg_handled = true
             }
 
             if (parsed.searchParams.get('enabledaemon') !== null) {
-                this.enableDaemon()
+                let msg = this.enableDaemon() ? 'Added as service' : 'Cannot add hvl as a service'
                 dispatched_request.dispatchFile(null, 'message.html', this.addDefaultIndexAttributes({
-                    'message': that.localization.localize('Added as service'),
+                    'message': that.localization.localize(msg),
                     'link': '#'
                 }))
                 cfg_handled = true
             }
 
             if (parsed.searchParams.get('disabledaemon') !== null) {
-                this.disableDaemon()
+                let msg = this.disableDaemon() ? 'removed service' : 'unable to remove the service'
                 dispatched_request.dispatchFile(null, 'message.html', this.addDefaultIndexAttributes({
-                    'message': that.localization.localize('removed service'),
+                    'message': that.localization.localize(msg),
                     'link': '#'
                 }))
                 cfg_handled = true
@@ -968,30 +976,39 @@ Server.prototype.currentUser = function() {
 
 
 Server.prototype.enableDaemon = function() {
-    this.configuration.setValue('daemon', true)
-        // Write systemd file
-    let tmpFile = path.join(os.tmpdir(), this.systemdFile)
-    if (fs.existsSync(tmpFile)) {
-        fs.unlinkSync(tmpFile)
-    } 
-
-    let execCmd = path.join(appRoot, '/bin/hmvi')
-    var strDaemon = '[Unit]\nDescription=Homematic Virtual Layer\nAfter=network-online.target\n\n'
-    strDaemon = strDaemon + '[Service]\nType=idle\nUser='
-    strDaemon = strDaemon + this.currentUser() + '\n'
-    strDaemon = strDaemon + 'ExecStart=' + execCmd + ' 1> /var/log/s_hvl.log 2>&1 &\n'
-    strDaemon = strDaemon + 'Restart=on-failure\nRestartSec=10\nKillMode=process\n\n[Install]\nWantedBy=multi-user.target'
-
-
-    fs.writeFileSync(tmpFile, strDaemon)
-    require('child_process').execSync('sudo mv ' + tmpFile + ' ' + this.systemdPath + this.systemdFile)
-    require('child_process').execSync('sudo systemctl daemon-reload')
-    require('child_process').execSync('sudo systemctl enable hvl')
+    if (process.platform === 'linux') {
+        const child_process = require('child_process')
+        this.configuration.setValue('daemon', true)
+            // Write systemd file
+        let tmpFile = path.join(os.tmpdir(), this.systemdFile)
+        if (fs.existsSync(tmpFile)) {
+            fs.unlinkSync(tmpFile)
+        } 
+
+        let execCmd = path.join(appRoot, '/bin/hmvi')
+        var strDaemon = '[Unit]\nDescription=Homematic Virtual Layer\nAfter=network-online.target\n\n'
+        strDaemon = strDaemon + '[Service]\nType=idle\nUser='
+        strDaemon = strDaemon + this.currentUser() + '\n'
+        strDaemon = strDaemon + 'ExecStart=' + execCmd + ' 1> /var/log/s_hvl.log 2>&1 &\n'
+        strDaemon = strDaemon + 'Restart=on-failure\nRestartSec=10\nKillMode=process\n\n[Install]\nWantedBy=multi-user.target'
+
+
+        fs.writeFileSync(tmpFile, strDaemon)
+        child_process.execSync('sudo mv ' + tmpFile + ' ' + this.systemdPath + this.systemdFile)
+        child_process.execSync('sudo systemctl daemon-reload')
+        child_process.execSync('sudo systemctl enable hvl')
+        return true
+    }
+    return false
 }
 
 Server.prototype.disableDaemon = function() {
-    this.configuration.setValue('daemon', false)
-    require('child_process').execSync('sudo systemctl disable hvl')
+    if (process.platform === 'linux') {
+        this.configuration.setValue('daemon', false)
+        require('child_process').execSync('sudo systemctl disable hvl')
+        return true
+    }
+    return false
 }
 
 Server.prototype.isPluginActive = function(type) {