From 2cc9fd99a82fa3ef72c198efbf7e74714b65f160 Mon Sep 17 00:00:00 2001
From: Kai Reinhard <K.Reinhard@micromata.de>
Date: Mon, 21 Jan 2019 01:34:02 +0000
Subject: [PATCH] File browsing as rest call.

---
 borgbutler-server/src/main/java/de/micromata/borgbutler/server/rest/FilesystemBrowserRest.java |   84 ++++++++++++++++++++++++++++++++++++++++++
 borgbutler-server/src/main/java/de/micromata/borgbutler/server/Main.java                       |    7 +++
 2 files changed, 90 insertions(+), 1 deletions(-)

diff --git a/borgbutler-server/src/main/java/de/micromata/borgbutler/server/Main.java b/borgbutler-server/src/main/java/de/micromata/borgbutler/server/Main.java
index 755708b..93f77ce 100644
--- a/borgbutler-server/src/main/java/de/micromata/borgbutler/server/Main.java
+++ b/borgbutler-server/src/main/java/de/micromata/borgbutler/server/Main.java
@@ -14,6 +14,7 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import java.awt.*;
 import java.io.*;
 import java.text.DateFormat;
 import java.text.SimpleDateFormat;
@@ -81,7 +82,11 @@
                     return;
                 }
             }
-            RunningMode.setServerType(RunningMode.ServerType.SERVER);
+            if (Desktop.isDesktopSupported()) {
+                RunningMode.setServerType(RunningMode.ServerType.DESKTOP);
+            } else {
+                RunningMode.setServerType(RunningMode.ServerType.SERVER);
+            }
             RunningMode.logMode();
             Runtime.getRuntime().addShutdownHook(new Thread() {
                 @Override
diff --git a/borgbutler-server/src/main/java/de/micromata/borgbutler/server/rest/FilesystemBrowserRest.java b/borgbutler-server/src/main/java/de/micromata/borgbutler/server/rest/FilesystemBrowserRest.java
new file mode 100644
index 0000000..150e913
--- /dev/null
+++ b/borgbutler-server/src/main/java/de/micromata/borgbutler/server/rest/FilesystemBrowserRest.java
@@ -0,0 +1,84 @@
+package de.micromata.borgbutler.server.rest;
+
+import de.micromata.borgbutler.json.JsonUtils;
+import org.apache.commons.lang3.StringUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.swing.*;
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.Produces;
+import javax.ws.rs.QueryParam;
+import javax.ws.rs.core.Context;
+import javax.ws.rs.core.MediaType;
+import java.io.File;
+
+@Path("/files")
+public class FilesystemBrowserRest {
+    private Logger log = LoggerFactory.getLogger(FilesystemBrowserRest.class);
+
+    /**
+     * Opens a directory browser or file browser on the desktop app and returns the chosen dir/file. Works only if Browser and Desktop app are running
+     * on the same host.
+     *
+     * @param current The current path of file. If not given the directory/file browser starts with the last used directory or user.home.
+     * @return The chosen directory path (absolute path).
+     */
+    @GET
+    @Path("/browse-local-filesystem")
+    @Produces(MediaType.APPLICATION_JSON)
+    public String browseLocalFilesystem(@Context HttpServletRequest requestContext, @QueryParam("current") String current) {
+        String msg = RestUtils.checkLocalDesktopAvailable(requestContext);
+        if (msg != null) {
+            log.info(msg);
+            return msg;
+        }
+        JFileChooser chooser;
+        if (StringUtils.isNotBlank(current)) {
+            chooser = new JFileChooser(current);
+        } else {
+            chooser = new JFileChooser();
+        }
+        chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
+        synchronized (FilesystemBrowserRest.class) {
+            if (frame == null) {
+                frame = new JFrame("BorgButler");
+                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+                JLabel label = new JLabel("Hello World");
+                frame.getContentPane().add(label);
+                frame.pack();
+            }
+        }
+        frame.setVisible(true);
+        frame.setAlwaysOnTop(true);
+        int returnCode = chooser.showDialog(frame, "Choose");
+        frame.setVisible(false);
+        frame.setAlwaysOnTop(false);
+        File file = null;
+        if (returnCode == JFileChooser.APPROVE_OPTION) {
+            file = chooser.getSelectedFile();
+        }
+        String filename = file != null ? JsonUtils.toJson(file.getAbsolutePath()) : "";
+        String result = "{\"directory\":" + filename + "}";
+        return result;
+    }
+
+    /**
+     * @return OK, if the local desktop services such as open file browser etc. are available.
+     */
+    @GET
+    @Path("/local-fileservices-available")
+    @Produces(MediaType.TEXT_PLAIN)
+    public String browseLocalFilesystem(@Context HttpServletRequest requestContext) {
+        String msg = RestUtils.checkLocalDesktopAvailable(requestContext);
+        if (msg != null) {
+            log.info(msg);
+            return msg;
+        }
+        return "OK";
+    }
+
+    private static JFrame frame;
+}

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