+++ /dev/null
-import java.io.*;
-import java.net.*;
-
-public class WebServerThread extends Thread {
- //Filename requested by the client
- String filename;
- String[] parsed;
- String prefix;
- Logger log;
- Inventory inventorylist;
- Socket sock;
- InputStream sockin;
- OutputStream sockout;
-
- //Constructor
- public WebServerThread(Socket s, Logger log, Inventory inventory){
- parsed = new String[4];
- this.log=log;
- this.sock=s;
- try {
- sockin=s.getInputStream();
- sockout=s.getOutputStream();
- } catch (Exception e) {
- e.printStackTrace();
- }
- this.inventorylist=inventory;
- }
-
- public void run() {
- // Process the incoming http request
- while (!clientrequest()) {
- }
- if(checktrans()==false) {
- // Not special transaction , do normal filesending
- SendFile();
- LogRequest();
- } else {
- // Invoke special inventory transaction
- Transaction();
- LogRequest();
- }
- }
-
- //Do the WriteIO on server socket and send the requested file to Client
- public void SendFile() {
- sendfile();
- try {
- sock.close();
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
-
- // Log the Client request
- public void LogRequest() {
- log.logrequest(filename);
- }
-
- //Transaction on Inventory
- public void Transaction() {
- // Parse
- int op = parseTransaction();
- // Check for the kind of operation
- if (op == 0 ) { /* Add */
- // System.printString("DEBUG > Calling add transaction\n");
- Integer qty = new Integer(parsed[2]);
- Integer price = new Integer(parsed[3]);
- inventorylist.additem(parsed[1], qty.intValue(), price.intValue());
- httpresponse();
- StringBuffer s = new StringBuffer("Added Item ");
- s.append(parsed[1]);
- s.append(" Quantity ");
- s.append(parsed[2]);
- s.append(" Price ");
- s.append(parsed[3]);
- s.append("\n");
- String towrite = new String(s);
- try {
- sockout.write(towrite.getBytes());
- } catch (Exception e) {
- e.printStackTrace();
- }
- } else if (op == 1) { /* Buy */
- // System.printString("DEBUG > Calling buy transaction\n");
- Integer qty = new Integer(parsed[2]);
- int ret = inventorylist.buyitem(parsed[1], qty.intValue());
- if (ret >= 0) {
- httpresponse();
- StringBuffer s = new StringBuffer("Bought item ");
- s.append(parsed[1]);
- s.append(" Quantity ");
- s.append(parsed[2]);
- s.append(" Cost ");
- Integer cost = new Integer(ret*qty.intValue());
- String c = cost.toString();
- s.append(c);
- String towrite = new String(s);
- try {
- sockout.write(towrite.getBytes());
- } catch (Exception e) {
- e.printStackTrace();
- }
- } else {
- httpresponse();
- String s = new String("Error encountered");
- try {
- sockout.write(s.getBytes());
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
- } else if (op == 2) { /* Inventory */
- // System.printString("DEBUG > Calling inventory transaction\n");
- httpresponse();
- inventorylist.inventory(sock);
- } else { /* Error */
- // System.printString("T > Error - Unknown transaction\n");
- }
- //Invoke close operations
- try {
- sock.close();
- } catch (Exception e) {e.printStackTrace();}
- }
-
-
- //Send the http header for web browser display
- public void httpresponse(){
- StringBuffer header = new StringBuffer("HTTP/1.0 200 OK\n");
- header.append("Content-type: text/html\n");
- header.append("\n\n");
- String temp_str = new String(header);
- try {
- sockout.write(temp_str.getBytes());
- } catch (Exception e) {
- e.printStackTrace();
- }
- return;
-
- }
-
- // Send the html file , read from file one byte at a time
- public void sendfile() {
- StringBuffer req_file = new StringBuffer("./htmlfiles/");
- req_file.append(filename);
- String filepath = new String(req_file);
- FileInputStream def_file = null;
- try {
- def_file=new FileInputStream(filepath);
- } catch (FileNotFoundException e) {
- }
- // int status = def_file.getfd();//Checks if the file is present in
- //current directory
- httpresponse();
- if (def_file == null){
- StringBuffer response = new StringBuffer("404: not found: ");//Send 404 error if
- // file not found
- response.append(filename);
- String buffer = new String(response);
- try {
- sockout.write(buffer.getBytes());
- } catch (Exception e) {
- e.printStackTrace();
- }
- try {
- def_file.close();
- } catch (Exception e) {
- e.printStackTrace();
- }
- return;
- }
- byte buf[] = new byte[16];
- int ret;
-
- try {
- while ((ret = def_file.read(buf)) > 0) {// Read from file and write
- // one byte at a time into the socket
- byte tosend[] = new byte[ret];
- for (int i = 0; i < ret; i++) {
- tosend[i] = buf[i];
- }
- sockout.write(tosend);
- //String str = new String(tosend);
- }
- def_file.close();
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
-
- //Read the client request and extract the filename from it
- public boolean clientrequest(){
- byte b1[] = new byte[1024];
- int numbytes=0;
- try {
- numbytes=sockin.read(b1);//Read client request from web server socket
- } catch (Exception e) {
- e.printStackTrace();
- }
- String curr=(new String(b1)).substring(0, numbytes);
- if (prefix!=null) {
- StringBuffer sb=new StringBuffer(prefix);
- sb.append(curr);
- curr=sb.toString();
- }
- prefix=curr;
- if(prefix.indexOf("\r\n\r\n")>=0) {
-
- int index = prefix.indexOf('/');//Parse the GET client request to find filename
- int end = prefix.indexOf('H');
- filename = prefix.substring((index+1), (end-1));
- // System.printString("\n");
- return true;
- }
- return false;
- }
-
- // Parse for the prefix in the client request
- // This is helpful to find if the prefix is a special transaction
- public boolean checktrans(){
- if (filename.startsWith("trans") == true) {
- return true;
- } else {
- return false;
- }
- }
-
- //Parse for the substrings in the filename and use it to obtain the
- //kind of operation, name of item, quantity of item, price of item
- //e.g. trans_add_car_2_10000 is the filename
- //store in the parsed[] string , add,car,2,1000
- public int parseTransaction(){
- int start = filename.indexOf('_');
- String s = filename.substring(start+1);
-
- if (s.startsWith("add")==true){
- // System.printString("DEBUG > ADD\n");
- int i1 = s.indexOf('_');
- parsed[0] = new String(s.substring(0,i1));
-
- int i2 = s.indexOf('_',i1+1);
- parsed[1] = new String(s.substring(i1+1,i2));
-
- int i3 = s.indexOf('_',i2+1);
- parsed[2] = new String(s.substring(i2+1,i3));
-
- String s3 = s.substring(i3+1);
- parsed[3] = s3;
-
- return 0;
-
- }
- if (s.startsWith("buy")==true){
- // System.printString("DEBUG > BUY\n");
- int i1 = s.indexOf('_');
- parsed[0] = s.substring(0,i1);
-
- int i2 = s.indexOf('_', i1+1);
- parsed[1] = s.substring(i1+1,i2);
-
- String s2 = s.substring(i2+1);
- parsed[2] = s2;
-
- parsed[3] = "";
-
- return 1;
- }
- if (s.startsWith("inventory")==true){
- // System.printString("DEBUG > INVENTORY\n");
- return 2;
-
- }
- // Error transaction
- return -1;
- }
-}
projects / IRC.git / blobdiff