jahiaconfigurationwizard.java

java 写的一个新闻发布系统

     * GET and POST (it works also with DELETE, TRACE and PUT) requests.
     * @author  Alexandre Kraft
     *
     * @param       request             servlet request.
     * @param       response            servlet response.
     * @exception   IOException         an I/O exception occured during the process.
     * @exception   ServletException    a servlet exception occured during the process.
     */
    private void dispatcher( HttpServletRequest   request,
                             HttpServletResponse  response )
    throws IOException, ServletException
    {
        // get the parameter *call*...
        String call = request.getParameter("call") == null ? "welcome" : request.getParameter("call");

        // call the action handler...
        actionHandler.call( this, call, request, response );
    }
    // end dispatcher( HttpServletRequest, HttpServletResponse )




    /**
     * This method display the welcome page.
     * @author  Alexandre Kraft
     *
     * @param       request             servlet request.
     * @param       response            servlet response.
     * @exception   IOException         an I/O exception occured during the process.
     * @exception   ServletException    a servlet exception occured during the process.
     */
    public void displayWelcome( HttpServletRequest   request,
                                HttpServletResponse  response )
    throws IOException, ServletException
    {
        // get system properties...
        Properties sys = System.getProperties();

        // set java infos on request...
        request.setAttribute( "javaversion", sys.getProperty("java.version") );
        request.setAttribute( "javavendor",  sys.getProperty("java.vendor") );
        request.setAttribute( "os",          sys.getProperty("os.name") );

        // set server infos on request...
        request.setAttribute( "server", serverInfos.get("info") );

        // forward to the jsp...
        doRedirect( request, response, JSP + "welcome" );

        // force objects to garbage collector...
        sys = null;
    }
    // end displayWelcome( HttpServletRequest, HttpServletResponse )




    /**
     * This method display the root settings page.
     * @author  Alexandre Kraft
     *
     * @param       request             servlet request.
     * @param       response            servlet response.
     * @exception   IOException         an I/O exception occured during the process.
     * @exception   ServletException    a servlet exception occured during the process.
     */
    public void displayRoot( HttpServletRequest   request,
                             HttpServletResponse  response )
    throws IOException, ServletException
    {
        // set focus it it's null...
        if( request.getAttribute("focus") == null ) {
            request.setAttribute( "focus", "pwd" );
        }

        // set configuration step title...
        request.setAttribute( "title", "SuperUser (administrator) settings" );

        // forward to the jsp...
        doRedirect( request, response, JSP + "root" );
    }
    // end displayRoot( HttpServletRequest, HttpServletResponse )




    /**
     * Process and check the validity of the root username, password, the
     * confirmation of the password, first name, last name and mail address
     * from the root settings page. If they are valid, display the server
     * settings page. Otherwise, re-display the root settings page to the user.
     * @author  Alexandre Kraft
     *
     * @param       request             servlet request.
     * @param       response            servlet response.
     * @exception   IOException         an I/O exception occured during the process.
     * @exception   ServletException    a servlet exception occured during the process.
     */
    public void processRoot( HttpServletRequest   request,
                             HttpServletResponse  response )
    throws IOException, ServletException
    {
        // by default, the user makes at least one error :o)
        boolean error = true;
        String  msg   = null;

        // save form values...
        values.put( "root_user",       (String) request.getParameter("user").trim() );
        values.put( "root_pwd",        (String) request.getParameter("pwd").trim() );
        values.put( "root_confirm",    (String) request.getParameter("confirm").trim() );
        values.put( "root_firstname",  (String) request.getParameter("firstname").trim() );
        values.put( "root_lastname",   (String) request.getParameter("lastname").trim() );
        values.put( "root_mail",       (String) request.getParameter("mail").trim() );

        // check root settings validity... if the user want to go next
        if( request.getParameter("go").equals("next") )
        {
            if( ((String)values.get("root_user")).length() < 4 ) {                                            // check username length [minimum 4 chars]
                request.setAttribute( "focus", "user" );
                msg =  "Username is too short. It must be at least 4 characters.";
            } else if( !JahiaTools.isAlphaValid(((String)values.get("root_user"))) ) {                        // check username is alpha valid
                request.setAttribute( "focus", "user" );
                msg =  "Please use only letters, digits or underscores in username.";
            } else if( ((String)values.get("root_pwd")).length() < 8 ) {                                      // check password length [minimum 8 chars]
                request.setAttribute( "focus", "pwd" );
                msg =  "Password is too short. It must be at least 8 characters.";
            } else if( !JahiaTools.isAlphaValid(((String)values.get("root_pwd"))) ) {                         // check password is alpha valid
                request.setAttribute( "focus", "pwd" );
                msg =  "Please use only letters, digits or underscores in password.";
            } else if( ((String)values.get("root_confirm")).length() == 0 ) {                                 // check confirmation length [minimum 8 chars]
                request.setAttribute( "focus", "confirm" );
                msg =  "Confirmation password must be the same as password.";
            } else if( !((String)values.get("root_pwd")).equals(((String)values.get("root_confirm"))) ) {     // check password and confirmation must be equals
                request.setAttribute( "focus", "pwd" );
                msg =  "Confirmation password must be the same as password.";
            } else if( ((String)values.get("root_firstname")).length() == 0 ) {                               // check firstname length [minimum 1 char]
                request.setAttribute( "focus", "firstname" );
                msg =  "First name must be set.";
            } else if( ((String)values.get("root_lastname")).length() == 0 ) {                                // check lastname length [minimum 1 char]
                request.setAttribute( "focus", "lastname" );
                msg =  "Last name must be set.";
            } else {
                error = false;                                                  // everything is okay, continue...
            }
        } else {
            error = false;                                                      // default, the user want to go back.
        }

        // call the appropriate method...
        if( error ) {
            request.setAttribute( "msg", msg );
            displayRoot( request, response );
        } else {
            if( request.getParameter("go").equals("next") ) {               // step next requested...
                displayServer( request, response );
            } else if( request.getParameter("go").equals("back") ) {        // step back requested...
                displayWelcome( request, response );
            }
        }

        // force objects to garbage collector...
        msg = null;
    }
    // end processRoot( HttpServletRequest, HttpServletResponse )




    /**
     * This method display the server settings page.
     * @author  Alexandre Kraft
     *
     * @param       request             servlet request.
     * @param       response            servlet response.
     * @exception   IOException         an I/O exception occured during the process.
     * @exception   ServletException    a servlet exception occured during the process.
     */
    public void displayServer( HttpServletRequest   request,
                               HttpServletResponse  response )
    throws IOException, ServletException
    {
        // determine the host url... now i've the request :o)
        if( ((String)values.get("server_url")) == null ) {
            values.put( "server_url", request.getScheme() +"://"+request.getHeader("host") );
        }

        if( ((String)values.get("webapps_deploybaseurl")) == null ) {
            URL deployURL = null;
            try {
                deployURL = new java.net.URL( request.getScheme() +"://"+request.getHeader("host") );
            } catch (MalformedURLException mue) {
                JahiaConsole.printe("JahiaConfigurationWizard.displayServer", mue);
            }
            values.put( "webapps_deploybaseurl", deployURL.toString() );
        }

        // set focus it it's null...
        if( request.getAttribute("focus") == null ) {
            request.setAttribute( "focus", "home" );
        }

        // set configuration step title...
        request.setAttribute( "title", "Server settings" );

        // forward to the jsp...
        doRedirect( request, response, JSP + "server" );
    }
    // end displayServer( HttpServletRequest, HttpServletResponse )




    /**
     * Process and check the validity of the servlet container home disk path,
     * the host url and the path (filesystem or context-relative) to jahia
     * files, from the server settings page. If they are valid, display the
     * next page, but... the user can choose to display *advanced settings* or
     * to go back. Otherwise, re-display the server settings page to the user.
     * @author  Alexandre Kraft
     *
     * @param       request             servlet request.
     * @param       response            servlet response.
     * @exception   IOException         an I/O exception occured during the process.
     * @exception   ServletException    a servlet exception occured during the process.
     */
    public void processServer( HttpServletRequest   request,
                               HttpServletResponse  response )
    throws IOException, ServletException
    {
        // by default, the user makes at least one error :o)
        boolean error   = true;
        boolean dbError = false;
        String  msg     = null;
        String  dbMsg   = null;

        // save form values...
        values.put( "server_home",        (String) request.getParameter("home").trim() );
        values.put( "server_url",         (String) request.getParameter("hosturl").trim() );
        values.put( "webapps_deploybaseurl",         (String) request.getParameter("webappsdeploybaseurl").trim() );
        values.put( "server_jahiafiles",  (String) request.getParameter("jahiafiles").trim() );

        // check server settings validity...if the user want to go next
        if( request.getParameter("go").equals("next") )
        {
            if( ((String)values.get("server_home")).length() == 0 ) {                      // check servlet container home path
                request.setAttribute( "focus", "home" );
                msg =  "Servlet Container home disk path must be set.";
            } else if( ((String)values.get("server_url")).length() == 0 ) {                // check host url
                request.setAttribute( "focus", "hosturl" );
                msg =  "Host URL must be set.";
            } else if( ((String)values.get("webapps_deploybaseurl")).length() == 0 ) {                // check host url
                request.setAttribute( "focus", "webappsdeploybaseurl" );
                msg =  "Web applications deployment base URL must be set.";
            } else if( ((String)values.get("server_jahiafiles")).length() == 0 ) {         // check jahia files path
                request.setAttribute( "focus", "jahiafiles" );
                msg =  "Path to Jahia Files must be set.";
            } else {
                error = false;                                                             // everything is okay, continue...
            }

            // check *slashs* validity of the inputs values...
            checkServerSlashs();

            // try some operations which can return customs exceptions...
            try
            {
                // try the servlet container home disk path...
                tryServerHome();

                // try the host url connection...
                tryHostURL();

                // try the host url connection...
                tryWebAppsDeployBaseURL();

                // try the path to jahia files (permissions, etc)...
                tryJahiaFilesPath();

            } catch (Exception e) {
                msg   = e.getMessage();
                error = true;
            }

            // reset default values if the user has specified invalid database settings...
            if( ((Boolean)values.get("database_custom")) == Boolean.FALSE ) {
                fillDefaultValues( false, true );
            }

            // test the database connection... (only if the user want continue by *next*)
            HashMap test = testDBConnection();
            dbError = ((Boolean)test.get("testDatabaseConnectionError")).booleanValue();
            dbMsg   = (String)test.get("testDatabaseConnectionMessage");
            request.setAttribute( "msg", dbMsg );

        } else {
            error = false;                                                                 // default, the user don't want to go next.
        }

        // call the appropriate method...
        if( error ) {                                       // process generates errors...
            request.setAttribute( "msg", msg );
            displayServer( request, response );
        } else if( dbError ) {                              // database settings are not correct...
            request.setAttribute( "msg", dbMsg );