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Keith Ball wrote:
>
> > I am using a a servlet engine as a front end for RCS. (Don't ask me I just
> prorgram here, I was thinking some nice swing front end, but I am not in
> charge!)
I have to admit I am doing the same thing. A Servlet front end to a CVS
repository, that will check in and out projects.
I have managed to get listing a directory, checking out a project and
some other bits and pieces.
Things you should bear in mind, ie what user is jserv running as? Will
that person have permissions to create a directory in the desired
location (for instance without specifying a directory you are working in
the root directory).
Rob
----------------
Below is the source code for one file I am currently using to test the
concept.
If its easier I can mail it to you
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class CVSProjectsCheckout extends HttpServlet {
private BufferedReader in = null;
private BufferedReader error = null;
private String line = null;
String username;
String project;
String directory;
PrintWriter out = null;
Runtime runtime = null;
Process process = null;
public void init(ServletConfig config) throws ServletException {
super.init(config);
runtime = Runtime.getRuntime();
}
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
res.setContentType("text/html");
out = res.getWriter();
username = req.getRemoteUser();
project = req.getParameter("project");
directory = "test";
String command2End = "cd ~/ ; mkdir " + directory;
String command3End = "cd ~/ ; ls | grep -x " + directory;
// String command4End = "cd ~/" + directory + " ; cvs checkout " +
project;
String command4End = "./tmp/checkout " + project;
String command5End = "cd ~/ ; ls | grep -x " + username;
String[] command = {"sudo", "-H", "-u", username, "/bin/csh", "-c",
"cd ~/; pwd"}; //works
String[] command2 = {"sudo", "-H", "-u", username, "/bin/csh", "-c",
command2End}; //works
String[] command3 = {"sudo", "-H", "-u", username, "/bin/csh", "-c",
command3End}; //works
String[] command4 = {"sudo", "-H", "-u", username, "/bin/csh", "-c",
command4End}; //works
String[] command5 = {"sudo", "-H", "-u", "robertm", "/bin/csh", "-c",
command5End}; //works
out.println("Welcome " + username);
out.println("<br><br>");
out.println("Checking " + directory + " directory exists in you home
area");
out.println("<br><br>");
boolean suc = false;
if(checkForDirectory(command5) == true) {
if(checkForDirectory(command3) == true) {
suc = checkoutProject(command4);
}
else {
if (makeDirectory(command2) == true) {
suc = checkoutProject(command4);
}
}
if(suc == true) {
out.println("Project checked out");
}
else {
out.println("error checking project out");
}
}
else {
out.println("User " + username + " does not have a home
directory.");
out.println("<br><br>");
out.println("Therefore the project will not be checked out");
}
}
private boolean checkForDirectory(String[] command) throws IOException{
try {
if (command != null) {
process = runtime.exec(command);
in = new BufferedReader(new
InputStreamReader(process.getInputStream()));
error = new BufferedReader(new
InputStreamReader(process.getErrorStream()));
line = null;
while((line = error.readLine()) != null) {
out.println(line);
}
line = in.readLine();
if (line != null) {
in.close();
error.close();
out.println("Directory Exists");
out.println("<br><br>");
process.destroy();
return true;
}
else {
in.close();
error.close();
process.destroy();
return false;
}
}
} catch (Exception e) {
out.println("Problem with 1" + e.toString());
in.close();
error.close();
}
process.destroy();
return false;
}
private boolean checkoutProject(String[] command) throws IOException{
boolean errorFlag = false;
try {
if (command != null) {
out.println("Checking project out now");
out.println("<br><br>");
process = runtime.exec(command);
in = new BufferedReader(new
InputStreamReader(process.getInputStream()));
error = new BufferedReader(new
InputStreamReader(process.getErrorStream()));
line = null;
out.println("<pre>");
while((line = in.readLine()) != null) {
out.println(line);
}
while((line = error.readLine()) != null) {
out.println(line);
}
process.waitFor();
if (process.exitValue() != 0) {
out.println("</pre>");
in.close();
error.close();
process.destroy();
return false;
}
out.println("</pre>");
in.close();
error.close();
process.destroy();
return true;
}
} catch (Exception e) {
out.println("Problem with 2" + e.toString());
in.close();
error.close();
}
process.destroy();
return false;
}
private boolean makeDirectory(String[] command) throws IOException {
boolean errorFlag = false;
try {
if (command != null) {
out.println("Making directory " + directory);
out.println("<br><br>");
process = runtime.exec(command);
in = new BufferedReader(new
InputStreamReader(process.getInputStream()));
error = new BufferedReader(new
InputStreamReader(process.getErrorStream()));
line = null;
while((line = error.readLine()) != null) {
errorFlag = true;
out.println(line);
}
if ( errorFlag == true) {
in.close();
error.close();
process.destroy();
return false;
}
while((line = in.readLine()) != null) {
out.println(line);
}
in.close();
error.close();
out.println("Directory " + directory + " created");
out.println("<br><br>");
process.destroy();
return true;
}
} catch (Exception e) {
out.println("Problem with 3" + e.toString());
in.close();
error.close();
}
process.destroy();
return false;
}
}
--
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