From 067110d1f895b435ca0035a5de35905a8f15eb76 Mon Sep 17 00:00:00 2001
From: djfri <djfri@Frisco.attlocal.net>
Date: Sun, 5 Aug 2018 21:32:39 -0700
Subject: [PATCH] Homework 2 networking Frisco
---
.../Frisco/FriscoAssignment2Client.java | 80 +++++++++++++++
.../Frisco/FriscoAssignment2Server.java | 99 +++++++++++++++++++
2 files changed, 179 insertions(+)
create mode 100644 deliverables/src/MV3500Cohort2018JulySeptember/homework2/Frisco/FriscoAssignment2Client.java
create mode 100644 deliverables/src/MV3500Cohort2018JulySeptember/homework2/Frisco/FriscoAssignment2Server.java
diff --git a/deliverables/src/MV3500Cohort2018JulySeptember/homework2/Frisco/FriscoAssignment2Client.java b/deliverables/src/MV3500Cohort2018JulySeptember/homework2/Frisco/FriscoAssignment2Client.java
new file mode 100644
index 0000000000..ceac887fdd
--- /dev/null
+++ b/deliverables/src/MV3500Cohort2018JulySeptember/homework2/Frisco/FriscoAssignment2Client.java
@@ -0,0 +1,80 @@
+package MV3500Cohort2018JulySeptember.homework2.Frisco;
+
+import java.io.*;
+import java.net.*;
+import java.util.Scanner;
+
+/**
+ * Before, we always used telnet to connect to the server. Here we are now
+ * writing our own program to do the connection.
+ *
+ * As you will see, when we run this after we start the server we will see the
+ * same string telnet printed, sent by the server. The output at the server will
+ * show different socket pairs for each time we ran it.
+ *
+ * @author mcgredo
+ */
+
+public class FriscoAssignment2Client {
+
+ public final static String LOCALHOST = "0:0:0:0:0:0:0:1"; // String constant, i.e. 127.0.0.1
+
+ public static void main(String[] args) {
+ boolean openConnection = true;
+ try {
+ while (openConnection) {
+ System.out.println("The Client is creating socket and it's wait for it...its going to be.... Legendary!");
+
+ // We request an IP to connect to ("localhost") and
+ // port number at that IP (2317). This establishes
+ // a connection to that IP in the form of the Socket
+ // object; the server uses a ServerSocket to wait for
+ // connections.
+ Socket socket = new Socket(LOCALHOST, 2317); // locohost? who be crazy now?
+
+ // Now hook everything up (i.e. set up the streams), Java style:
+ InputStream is = socket.getInputStream();
+ InputStreamReader isr = new InputStreamReader(is);
+ BufferedReader br = new BufferedReader(isr);
+
+ // Read the single line written by the server. We'd
+ // do things a bit differently if many lines to be read
+ // from the server, instead of one only.
+
+ //
+ String serverMessage = br.readLine();
+ System.out.println("==================================================");
+ System.out.println("Now we're talking!");
+ System.out.println("\nThe message the server sent was " + serverMessage );
+
+ //System.out.println("\nSTOP! Who would cross the Bridge of Death must answer me these questions three, ere the other side he see. ");
+ while (openConnection)
+ {
+ System.out.println("\nSTOP! Who would cross the Bridge of Death must answer me these questions three, ere the other side he see. ");
+ Scanner incomingMessage = new Scanner(System.in);
+ String s = incomingMessage.nextLine();
+ OutputStream os = socket.getOutputStream();
+ PrintStream ps = new PrintStream(os);
+ ps.println("Client Reply: " + s);
+
+ serverMessage = br.readLine();
+ System.out.println(serverMessage);
+ if(serverMessage.contains("Huh"))
+ {
+ openConnection = false;
+ socket.close();
+ }
+ // aboved lines of code were ideas of Maj Furr on how to get the client to type to the server,
+ //this is what I was also doing so I borrowed his code
+
+ }
+ }
+ } catch (IOException e) {
+ System.out.println("Problem with client: "); // describe what is happening
+ System.out.println(e);
+ }
+ // program exit: tell somebody about that
+ System.out.println("client exit.. YOU may Pass!!");
+ }
+
+}
diff --git a/deliverables/src/MV3500Cohort2018JulySeptember/homework2/Frisco/FriscoAssignment2Server.java b/deliverables/src/MV3500Cohort2018JulySeptember/homework2/Frisco/FriscoAssignment2Server.java
new file mode 100644
index 0000000000..5f3024e1e8
--- /dev/null
+++ b/deliverables/src/MV3500Cohort2018JulySeptember/homework2/Frisco/FriscoAssignment2Server.java
@@ -0,0 +1,99 @@
+package MV3500Cohort2018JulySeptember.homework2.Frisco;
+
+import java.io.*;
+import java.net.*;
+
+/**
+ * Very slightly more complex than example1. A complete copy of example 2.
+ * The only thing this does differently is introduce a loop into the response, so
+ * you don't have to restart the program after one response. Also, it prints out
+ * the socket pair the server sees. Run the program via telnet several times and
+ * compare the socket pairs.telnet localhost 2317
+ * If you're sophisticated you can contact the instructor's computer while running this program.
+ *
+ * telnet <ipOfServersLaptop> 2317
+ *
+ * And have him display the socket pairs he got.
+ *
+ * @author mcgredo
+ */
+public class FriscoAssignment2Server {
+
+ public static void main(String[] args) throws IOException {
+
+ String[] serverQuestions = new String[7]; //canned responses for multiple inputs from client
+ serverQuestions[0] = "What... is your name?";
+ serverQuestions[1] = "What.... is your quest?";
+ serverQuestions[2] = "What..... is your favorite color?";
+ serverQuestions[3] = "What... is your name?";
+ serverQuestions[4] = "What.... is your quest?";
+ serverQuestions[5] = "What..... is the air-speed velocity of an unladen swallow?";
+ serverQuestions[6] = "Huh ? I--I don't know that. Auuuuuuuugh!!";
+ int index = 0;
+
+ try {
+
+
+ ServerSocket serverSocket = new ServerSocket(2317);
+ System.out.println("Server Socket open and waiting");
+ boolean connectionActive;
+
+ // Loop, infinitely, waiting for client connections.
+ // Stop the program somewhere else.
+ while(true)
+ {
+ Socket clientConnection = serverSocket.accept(); // block until connected
+ connectionActive = true; //ensure after every new connection the boolean is reset to true.
+ index =0; //reset the index for responses back to 0 each time a new connection happens.
+
+ while (connectionActive) {
+
+ OutputStream os = clientConnection.getOutputStream();
+ PrintStream ps = new PrintStream(os);
+ ps.println("This was written by the server");
+
+ InputStream serverIS = clientConnection.getInputStream();
+ InputStreamReader serverISR = new InputStreamReader(serverIS);
+ BufferedReader br = new BufferedReader(serverISR);
+ String line;
+
+ // Print some information locally about the Socket
+ // connection. This includes the port and IP numbers
+ // on both sides (the socket pair.)
+ InetAddress localAddress = clientConnection.getLocalAddress();
+ InetAddress remoteAddress = clientConnection.getInetAddress();
+
+ int localPort = clientConnection.getLocalPort();
+ int remotePort = clientConnection.getPort();
+ System.out.println("\nSocket pair: (( " + localAddress.toString() + ", " + localPort + " ), ( "
+ + remoteAddress.toString() + ", " + remotePort + " ))");
+ while (index < 7) {
+ //while ((line = br.readLine()) != null)//&& index<10)
+ {
+
+
+ System.out.println("\n" + br.readLine() ); //line); //prints out what is recieved from client
+ ps.println("\tThe SERVER has responded with: " + serverQuestions[index]); //sends the prewritten response
+ System.out.println("Server has sent: " + serverQuestions[index]); //tells server user what was sent
+ index++; //goes to next response.
+
+ // Notice the use of flush() and close(). Without
+ // the close() to Socket object may stay open for
+ // a while after the client has stopped needing this
+ // connection. Close() explicitly ends the connection.
+ }
+
+ }
+ connectionActive = false;
+ ps.flush();
+ clientConnection.close();
+ }
+ }
+
+ } catch (IOException e) {
+ System.out.println("Danger Danger Will Robinson!! the Network is failing" + e);
+ }
+
+ }
+
+}
--
GitLab