Add admission to download files

src/main/java/ftp/sar/FileChooser.java

@@ -0,0 +1,17 @@
+package ftp.sar;
+
+import javax.swing.*;
+
+public class FileChooser {
+
+    public String getPathToSave() {
+        JFileChooser fileChooser = new JFileChooser();
+        fileChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
+        fileChooser.setDialogTitle("Choose file destination");
+        fileChooser.setAcceptAllFileFilterUsed(false);
+        fileChooser.showSaveDialog(null);
+
+        return fileChooser.getSelectedFile().toString();
+    }
+
+}

src/main/java/ftp/sar/controller/ServerPanelController.java

@@ -1,5 +1,6 @@
 package ftp.sar.controller;
 
+import ftp.sar.FileChooser;
 import ftp.sar.builder.FilePaneBuilder;
 import ftp.sar.exception.CannotConnectException;
 import ftp.sar.server.Server;
@@ -8,6 +9,7 @@ import javafx.fxml.FXML;
 import javafx.fxml.Initializable;
 import javafx.scene.control.Button;
 import javafx.scene.control.Label;
+import javafx.scene.input.MouseEvent;
 import javafx.scene.layout.FlowPane;
 import javafx.scene.layout.Pane;
 
@@ -61,10 +63,22 @@ public class ServerPanelController implements Initializable {
         for (String filename : this.server.getFileList()) {
             var pane = this.filePaneBuilder.getPane(filename);
 
+            pane.addEventHandler(MouseEvent.MOUSE_CLICKED, mouseEvent -> this.getFile(filename));
+
             this.fileContainer.getChildren().add(pane);
         }
     }
 
+    private void getFile(String filename) {
+        FileChooser fileChooser = new FileChooser();
+        String path = fileChooser.getPathToSave();
+
+        this.server.getConnector().getFile(filename, path);
+
+        System.out.println(filename);
+
+    }
+
     @Override
     public void initialize(URL url, ResourceBundle resourceBundle) {
     }

src/main/java/ftp/sar/server/ServerConnector.java

@@ -77,4 +77,46 @@ public class ServerConnector {
         }
 
     }
+
+    public void getFile(String filename, String path) {
+        File file = new File(path + "\\" + filename);
+        try {
+            this.sendRequest("FTP_" + filename);
+        } catch (CannotConnectException e) {
+            e.printStackTrace();
+        }
+
+        DataInputStream dataInputStream = null;
+        char[] buffer = new char[512];
+        try {
+            dataInputStream = new DataInputStream(this.server.getSocket().getInputStream());
+            InputStreamReader inputStreamReader = new InputStreamReader(dataInputStream);
+            BufferedReader reader = new BufferedReader(inputStreamReader);
+
+            reader.read(buffer);
+
+            String l = "";
+
+            for (char c: buffer) {
+                if (Character.isDigit(c)) {
+                    l += c;
+                }
+            }
+            //TODO: Finish getting file
+//            long lengthOFFile = Long.parseLong(l.trim());
+//
+//
+//            byte[] fileBuffer = new byte[4096];
+//
+//            do {
+//                dataInputStream.read(fileBuffer);
+//                lengthOFFile -= 4096;
+//            } while (lengthOFFile > 0);
+
+            System.out.println(l);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+    }
 }