Simple ftpgui

SimpleFTP/FTPClient/build.gradle

@@ -0,0 +1,14 @@
+group 'ru.spbau.dkaznacheev'
+version '1.0-SNAPSHOT'
+
+apply plugin: 'java'
+
+sourceCompatibility = 1.8
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    testCompile group: 'junit', name: 'junit', version: '4.12'
+}

SimpleFTP/FTPClient/src/main/java/ru/spbau/dkaznacheev/simpleftp/Client.java

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+package ru.spbau.dkaznacheev.simpleftp;
+
+import java.io.*;
+import java.net.ConnectException;
+import java.net.Socket;
+import java.net.UnknownHostException;
+import java.util.Scanner;
+
+public class Client {
+
+    /**
+     * Downloads a file from sever
+     * @param in inputstream of a socket
+     * @param name name of the file
+     */
+    private static void receiveFile(DataInputStream in, String name) throws IOException{
+        long length = in.readLong();
+        if (length == 0) {
+            System.out.println("No such file");
+            return;
+        }
+        try (FileOutputStream out = new FileOutputStream(simpleName(name))) {
+            byte[] buffer = new byte[4096];
+            long remaining = length;
+            int read;
+            while ((read = in.read(buffer, 0, (int) Math.min(buffer.length, remaining))) > 0) {
+                remaining -= read;
+                out.write(buffer);
+            }
+        }
+    }
+
+    /**
+     * Returns simple file name of the filepath.
+     * @param path path to file
+     * @return filename
+     */
+    private static String simpleName(String path) {
+        return new File(path).getName();
+    }
+
+    public static void main(String[] args) {
+        try (
+                Socket socket = new Socket("127.0.0.1", 8080);
+                PrintWriter out = new PrintWriter(socket.getOutputStream(), true);
+                DataInputStream in = new DataInputStream(socket.getInputStream());
+                Scanner stdIn = new Scanner(System.in)
+        ) {
+            ResponseCode fromServer;
+            String fromUser;
+            boolean exit = false;
+            while (!exit) {
+                fromUser = stdIn.nextLine();
+                if (fromUser != null) {
+                    out.println(fromUser);
+                }
+                fromServer = ResponseCode.values()[in.readInt()];
+                switch (fromServer) {
+                    case CLOSE_CONNECTION: {
+                        exit = true;
+                        break;
+                    }
+                    case INVALID_COMMAND: {
+                        System.out.println("Invalid command");
+                        break;
+                    }
+                    case FOLDER_DESCRIPTION: {
+                        FolderDescription description = FolderDescription.read(in);
+                        description.print();
+                        break;
+                    }
+                    case FILE_SEND: {
+                        String[] parts = fromUser.split(" ");
+                        receiveFile(in, parts[1]);
+                        break;
+                    }
+                }
+            }
+
+        } catch (UnknownHostException e) {
+            System.err.println("Unknown host");
+        } catch (ConnectException e) {
+            System.err.println("Connection refused");
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+}
+

SimpleFTP/FTPServer/build.gradle

@@ -0,0 +1,14 @@
+group 'ru.spbau.dkaznacheev'
+version '1.0-SNAPSHOT'
+
+apply plugin: 'java'
+
+sourceCompatibility = 1.8
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    testCompile group: 'junit', name: 'junit', version: '4.12'
+}