Eddie's Tech Notes

jQuery UI Datepicker 1.8.16 民國年 Extender

2011-09-04T11:25:00.002+08:00



jQuery UI Datepicker 1.8.16  民國年 Extender





Code Snippet





/*

* jQuery UI Datepicker 1.8.16

* Taiwan's Minguo calendar extender

* This extender modified the year to Taiwan's Minguo calendar

* Extended by Eddie Chen
*/

$.extend($.datepicker,{

/* Parse existing date and initialise date picker. */

    _setDateFromField: function(inst, noDefault) {

        if (inst.input.val() == inst.lastVal) {

            return;

        }

        var dateFormat = this._get(inst, 'dateFormat');

        var dates = inst.lastVal = inst.input ? inst.input.val() : null;

        var date, defaultDate;

        date = defaultDate = this._getDefaultDate(inst);

        var settings = this._getFormatConfig(inst);

        try {

            //date = this.parseDate(dateFormat, dates, settings) || defaultDate;

            if(dates.couny>0)

            {

            var dateArr = dates.split("/");

            var year = parseInt(dateArr[0], 10) + 1911;

            var month = parseInt(dateArr[1], 10);

            var day = parseInt(dateArr[2], 10);

            date = new Date(year, month, day);

            }

        } catch (event) {

            this.log(event);

            dates = (noDefault ? '' : dates);

        }

        inst.selectedDay = date.getDate();

        inst.drawMonth = inst.selectedMonth = date.getMonth();

        inst.drawYear = date.getFullYear();

        inst.selectedYear = date.getFullYear();

        inst.currentDay = (dates ? date.getDate() : 0);

        inst.currentMonth = (dates ? date.getMonth() : 0);

        inst.currentYear = (dates ? date.getFullYear() : 0);

        this._adjustInstDate(inst);

    },

_daylightSavingAdjust: function(date) {

        if (!date) return null;

        date.setHours(date.getHours() > 12 ? date.getHours() + 2 : 0);

        

        if (!date) return null;

        if((date.getFullYear()-1911)>0)

            date.getFullYear((date.getFullYear()-1911));

        else

            date.getFullYear((date.getFullYear()));

            

        return date;

    },

_taiwanDateAdjust: function(date) {

        if (!date) return null;

        if((date.getFullYear()-1911)>0)

            date.setFullYear((date.getFullYear()-1911),date.getMonth(),date.getDay());

        else

            date.setFullYear((date.getFullYear()),date.getMonth(),date.getDay());    

        return date;

    },

    /* Generate the month and year header. */

    _generateMonthYearHeader: function(inst, drawMonth, drawYear, minDate, maxDate,

            secondary, monthNames, monthNamesShort) {

        var changeMonth = this._get(inst, 'changeMonth');

        var changeYear = this._get(inst, 'changeYear');

        var showMonthAfterYear = this._get(inst, 'showMonthAfterYear');

        var html = '<div class="ui-datepicker-title">';

        var monthHtml = '';

        // month selection

        if (secondary || !changeMonth)

            monthHtml += '<span class="ui-datepicker-month">' + monthNames[drawMonth] + '</span>';

        else {

            var inMinYear = (minDate && minDate.getFullYear() == drawYear);

            var inMaxYear = (maxDate && maxDate.getFullYear() == drawYear);

            monthHtml += '<select class="ui-datepicker-month" ' +

                'onchange="DP_jQuery_' + dpuuid + '.datepicker._selectMonthYear(\'#' + inst.id + '\', this, \'M\');" ' +

                '>';

            for (var month = 0; month < 12; month++) {

                if ((!inMinYear || month >= minDate.getMonth()) &&

                        (!inMaxYear || month <= maxDate.getMonth()))

                    monthHtml += '<option value="' + month + '"' +

                        (month == drawMonth ? ' selected="selected"' : '') +

                        '>' + monthNamesShort[month] + '</option>';

            }

            monthHtml += '</select>';

        }

        if (!showMonthAfterYear)

            html += monthHtml + (secondary || !(changeMonth && changeYear) ? '&#xa0;' : '');

        // year selection

        if ( !inst.yearshtml ) {

            inst.yearshtml = '';

            if (secondary || !changeYear)

                if((drawYear-1911) >0)

                    html += '<span class="ui-datepicker-year">' + (drawYear-1911) + '</span>';

                else

                    html += '<span class="ui-datepicker-year">' + drawYear + '</span>';

            else {

                // determine range of years to display

                var years = this._get(inst, 'yearRange').split(':');

                var thisYear = new Date().getFullYear();

                var determineYear = function(value) {

                    var year = (value.match(/c[+-].*/) ? drawYear + parseInt(value.substring(1), 10) :

                        (value.match(/[+-].*/) ? thisYear + parseInt(value, 10) :

                        parseInt(value, 10)));

                    return (isNaN(year) ? thisYear : year);

                };

                var year = determineYear(years[0]);

                var endYear = Math.max(year, determineYear(years[1] || ''));

                year = (minDate ? Math.max(year, minDate.getFullYear()) : year);

                endYear = (maxDate ? Math.min(endYear, maxDate.getFullYear()) : endYear);

                inst.yearshtml += '<select class="ui-datepicker-year" ' +

                    'onchange="DP_jQuery_' + dpuuid + '.datepicker._selectMonthYear(\'#' + inst.id + '\', this, \'Y\');" ' +

                    '>';

                    

                if((drawYear-1911) >0)

                {

                    for (; year <= endYear; year++) {

                        inst.yearshtml += '<option value="' + year + '"' +

                            (year == drawYear ? ' selected="selected"' : '') +

                            '>' + (year-1911) + '</option>';

                    }                

                }

                else

                {

                    for (; year <= endYear; year++) {

                        inst.yearshtml += '<option value="' + year + '"' +

                            (year == drawYear ? ' selected="selected"' : '') +

                            '>' + (year) + '</option>';

                    }

                }

                inst.yearshtml += '</select>';

                

                html += inst.yearshtml;

                inst.yearshtml = null;

            }

        }

        html += this._get(inst, 'yearSuffix');

        if (showMonthAfterYear)

            html += (secondary || !(changeMonth && changeYear) ? '&#xa0;' : '') + monthHtml;

        html += '</div>'; // Close datepicker_header

        return html;

    },

_formatDate : function(inst, day, month, year)

 

    {

 

       if (!day)

 

       {

 

           inst.currentDay = inst.selectedDay;

 

           inst.currentMonth = inst.selectedMonth;

 

           inst.currentYear = inst.selectedYear;

 

       }

 

       var date = (day ? (typeof day == 'object' ? day :

 

               this._daylightSavingAdjust(new Date(year, month, day))) :

 

              this._daylightSavingAdjust(new Date(inst.currentYear, inst.currentMonth, inst.currentDay)));

 

       return (date.getFullYear() - 1911) + "/" +

 

              (date.getMonth() < 9 ? "0" + (date.getMonth() + 1) : (date.getMonth() + 1)) + "/" +

 

              (date.getDate() < 10 ? "0" + date.getDate() : date.getDate());

 

    }

});

How to prevent seeing “\ No newline at end of file” when using Git with Visual Studio

2011-08-27T14:26:00.001+08:00

1. In Visual Studio menu, select Tools > Macros > Macros IDE

2. Select the Class View tab. Under My Macros, double click the EnvironmentEvents node.

3. select DocumentEvents from the dropdown list on the left, then select DocumentSaved from the dropdown list on the right. This will generate a blank event handler.

4. Paste the following code into the blank event handler.

Private Sub DocumentEvents_DocumentSaved(ByVal Document As EnvDTE.Document) Handles DocumentEvents.DocumentSaved
        '
        ' This handler will add a newline to end of file if it doesn't already have one.
        '
        Dim textSelection As EnvDTE.TextSelection

        textSelection = CType(DTE.ActiveDocument.Selection(), EnvDTE.TextSelection)

        Dim originalLine As Integer
        originalLine = textSelection.AnchorPoint.Line
        Dim originalOffset As Integer
        originalOffset = textSelection.AnchorPoint.LineCharOffset
        Dim viewTop As EnvDTE.TextPoint
        viewTop = textSelection.TextPane.StartPoint

        textSelection.EndOfDocument(False)
        Dim pt As VirtualPoint
        pt = textSelection.BottomPoint()

        textSelection.GotoLine(pt.Line, True)
        If textSelection.Text.Length <> 0 Then
            textSelection.Text = textSelection.Text & vbCrLf
            DTE.ActiveDocument.Save()
        End If
        textSelection.MoveToLineAndOffset(originalLine, originalOffset, False)
        textSelection.TextPane.TryToShow(viewTop, vsPaneShowHow.vsPaneShowTop)
    End Sub

5. Save the macro

From now on all the files saved through Visual Studio will be appended with a new line to avoid the error message in the Git source control.

Android Development Study Notes 2 - Opiton Menus

2011-02-20T20:52:00.001+08:00

strings.xml

<?xml version="1.0" encoding="utf-8"?>

<string name="AllDepartment">List All Depts</string>

<string name="Seach">Search</string>

</resources>

Add the following codes in the activity class

@Override

public boolean onCreateOptionsMenu(Menu menu) {

menu.add(0, 0, 0,this.getResources().getString(R.string.AllDepartment));

menu.add(0, 1, 1, this.getResources().getString(R.string.Seach));

return super.onCreateOptionsMenu(menu);

}

When user click on "menu" button, 2 option menus would appear at the bottom of the screen.

Android Study Notes 1 - "Hello World"

2011-02-20T20:45:00.001+08:00

"Hello World"

strings.xml

<?xml version="1.0" encoding="utf-8"?>

<string name="hello">Hello World, DroidActivity!</string>

<string name="app_name">Droid1</string>

</resources>

main.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

<TextView

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="@string/hello"

</LinearLayout>

DroidAvtivity.java

package com.myandroid.droid1;
import android.app.Activity;
import android.os.Bundle;
public class DroidActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }
}

Validation of viewstate MAC failed

2010-11-10T11:29:00.002+08:00

Error message:

Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that configuration specifies the same validationKey & validation algorithm. AutoGenerate cannot be used in a cluster.

Solution:

Disable viewstate change by adding this to the affected aspx page.

EnableViewState="false" EnableEventValidation="false" enableViewStateMac=false

For example:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Login.aspx.cs" Inherits="myLogin" EnableViewState="false" EnableEventValidation="false" enableViewStateMac=false %>

Cannot convert type ASP.login_aspx to System.Web.UI.WebControls.Login

2010-11-10T11:25:00.003+08:00

Today I encountered this weird error after I published my ASP.NET to the server.

Cannot convert type ASP.login_aspx to System.Web.UI.WebControls.Login

Solution:

1. In login.aspx.cs

Change public partial class Login : System.Web.UI.Page to public partial class myLogin : System.Web.UI.Page

2. In login.aspx

Change <%@ Page Language="C#" ValidateRequest="false" AutoEventWireup="true" CodeFile="Login.aspx.cs" Inherits="Login" %>

to <%@ Page Language="C#" ValidateRequest="false" AutoEventWireup="true" CodeFile="Login.aspx.cs" Inherits="myLogin" %>

SQL script to get table metadata form a SQL server

2010-06-07T14:08:00.001+08:00

// SQL script to get table metadata form a SQL server

SELECT u.name + '.' + t.name AS [table], c.name AS [column]

FROM sys.sysobjects AS t INNER JOIN

sys.sysusers AS u ON u.uid = t.uid LEFT OUTER JOIN

sys.extended_properties AS td ON td.major_id = t.id AND td.minor_id = 0 AND td.name = 'MS_Description' INNER JOIN

sys.syscolumns AS c ON c.id = t.id LEFT OUTER JOIN

sys.extended_properties AS cd ON cd.major_id = c.id AND cd.minor_id = c.colid AND cd.name = 'MS_Description'

WHERE (t.type = 'u')

ORDER BY t.name, c.colorder

To disable right click event in JavaScript using jQuery

2009-12-01T09:21:00.000+08:00

$(function() {
           $(this).bind("contextmenu", function(e) {
               e.preventDefault();
           });
       });

WF Activity to send a plurk message

2009-08-07T20:36:00.001+08:00

using System;

using System.ComponentModel;

using System.Workflow.Activities;

using System.Workflow.ComponentModel;

namespace SendPlurkMessageActivity

{

public partial class SendPlurkMessageActivity: SequenceActivity

{

public SendPlurkMessageActivity()

{

InitializeComponent();

}

#region Public workflow members

public static DependencyProperty PlurkUserNameProperty = DependencyProperty.Register("PlurkUserName", typeof(string), typeof(SendPlurkMessageActivity));

[DescriptionAttribute("PlurkUserName")]

[CategoryAttribute("PlurkUserName Category")]

[BrowsableAttribute(true)]

[DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)]

public string PlurkUserName

{

get

{

return ((string)(base.GetValue(SendPlurkMessageActivity.PlurkUserNameProperty)));

}

set

{

base.SetValue(SendPlurkMessageActivity.PlurkUserNameProperty, value);

}

public static DependencyProperty PlurkPasswordProperty = DependencyProperty.Register("PlurkPassword", typeof(string), typeof(SendPlurkMessageActivity));

[DescriptionAttribute("PlurkPassword")]

[CategoryAttribute("PlurkPassword Category")]

[BrowsableAttribute(true)]

[DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)]

public string PlurkPassword

{

get

{

return ((string)(base.GetValue(SendPlurkMessageActivity.PlurkPasswordProperty)));

}

set

{

base.SetValue(SendPlurkMessageActivity.PlurkPasswordProperty, value);

}

public static DependencyProperty PlurkMessageBodyProperty = DependencyProperty.Register("PlurkMessageBody", typeof(string), typeof(SendPlurkMessageActivity));

[DescriptionAttribute("PlurkMessageBody")]

[CategoryAttribute("PlurkMessageBody Category")]

[BrowsableAttribute(true)]

[DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)]

public string PlurkMessageBody

{

get

{

return ((string)(base.GetValue(SendPlurkMessageActivity.PlurkMessageBodyProperty)));

}

set

{

base.SetValue(SendPlurkMessageActivity.PlurkMessageBodyProperty, value);

}

#endregion

protected override ActivityExecutionStatus Execute(ActivityExecutionContext executionContext)

{

try

{

PlurkApi.PlurkApi api = new PlurkApi.PlurkApi();

if (api.Login(PlurkUserName, PlurkPassword))

{

api.addMessage("tr_ch", string.Empty, PlurkMessageBody, true, string.Empty);

//api.

//api.addMessage("tr_ch", string.Empty, "Plurking from WWF C# CustomizedAction. Current Taiwan time is " + DateTime.Now.ToLongDateString() + " " + DateTime.Now.ToLongTimeString(), true, string.Empty);

}

catch (Exception ex)

{

}

return ActivityExecutionStatus.Closed;

}

SMTP SendMailActivity for Windows Workflow

2009-08-06T23:06:00.004+08:00

using System;

using System.ComponentModel;

using System.Net;

using System.Net.Mail;

using System.Workflow.ComponentModel;

namespace SendMailActivity

{

public partial class SendMailActivity: Activity

{

public SendMailActivity()

{

InitializeComponent();

}

#region Public workflow members

public static DependencyProperty FromProperty = DependencyProperty.Register("From", typeof(string), typeof(SendMailActivity));

[DescriptionAttribute("The email address of the sender")]

[CategoryAttribute("Parameters")]

[BrowsableAttribute(true)]

[DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)]

public string From

{

get

{

return ((string)(base.GetValue(SendMailActivity.FromProperty)));

}

set

{

base.SetValue(SendMailActivity.FromProperty, value);

}

public static DependencyProperty ToProperty = DependencyProperty.Register("To", typeof(string), typeof(SendMailActivity));

[DescriptionAttribute("The email address of the receiver")]

[CategoryAttribute("Parameters")]

[BrowsableAttribute(true)]

[DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)]

public string To

{

get

{

return ((string)(base.GetValue(SendMailActivity.ToProperty)));

}

set

{

base.SetValue(SendMailActivity.ToProperty, value);

}

public static DependencyProperty SubjectProperty = DependencyProperty.Register("Subject", typeof(string), typeof(SendMailActivity));

[DescriptionAttribute("Subject")]

[CategoryAttribute("Parameters")]

[BrowsableAttribute(true)]

[DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)]

public string Subject

{

get

{

return ((string)(base.GetValue(SendMailActivity.SubjectProperty)));

}

set

{

base.SetValue(SendMailActivity.SubjectProperty, value);

}

public static DependencyProperty BodyProperty = DependencyProperty.Register("Body", typeof(string), typeof(SendMailActivity));

[DescriptionAttribute("Body")]

[CategoryAttribute("Parameters")]

[BrowsableAttribute(true)]

[DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)]

public string Body

{

get

{

return ((string)(base.GetValue(SendMailActivity.BodyProperty)));

}

set

{

base.SetValue(SendMailActivity.BodyProperty, value);

}

public static DependencyProperty HostProperty = DependencyProperty.Register("Host", typeof(string), typeof(SendMailActivity));

[DescriptionAttribute("Host")]

[CategoryAttribute("Parameters")]

[BrowsableAttribute(true)]

[DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)]

public string Host

{

get

{

return ((string)(base.GetValue(SendMailActivity.HostProperty)));

}

set

{

base.SetValue(SendMailActivity.HostProperty, value);

}

public static DependencyProperty LoginProperty = DependencyProperty.Register("Login", typeof(string), typeof(SendMailActivity));

[DescriptionAttribute("Login")]

[CategoryAttribute("Login Category")]

[BrowsableAttribute(true)]

[DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)]

public string Login

{

get

{

return ((string)(base.GetValue(SendMailActivity.LoginProperty)));

}

set

{

base.SetValue(SendMailActivity.LoginProperty, value);

}

public static DependencyProperty PasswordProperty = DependencyProperty.Register("Password", typeof(string), typeof(SendMailActivity));

[DescriptionAttribute("Password")]

[CategoryAttribute("Password Category")]

[BrowsableAttribute(true)]

[DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)]

public string Password

{

get

{

return ((string)(base.GetValue(SendMailActivity.PasswordProperty)));

}

set

{

base.SetValue(SendMailActivity.PasswordProperty, value);

}

public static DependencyProperty PortProperty = DependencyProperty.Register("Port", typeof(int), typeof(SendMailActivity));

[DescriptionAttribute("Port")]

[CategoryAttribute("Port Category")]

[BrowsableAttribute(true)]

[DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)]

public int Port

{

get

{

return ((int)(base.GetValue(SendMailActivity.PortProperty)));

}

set

{

base.SetValue(SendMailActivity.PortProperty, value);

}

#endregion

protected override ActivityExecutionStatus Execute(ActivityExecutionContext executionContext)

{

try

{

MailAddress toAddress = new MailAddress(To);

MailAddress fromAddress = new MailAddress(From);

MailAddressCollection addresses = new MailAddressCollection();

addresses.Add(toAddress);

MailMessage msg = new MailMessage(fromAddress, toAddress);

msg.Subject = Subject;

msg.Body = Body;

SmtpClient mail = new SmtpClient(Host);

mail.Port = Port; //587;

mail.Credentials = new NetworkCredential(Login, Password);

mail.EnableSsl = true;

mail.Send(msg);

}

catch (Exception ex)

{

Console.WriteLine(ex.Message);

}

return ActivityExecutionStatus.Closed;

}

// Gmail settings

// SMTP server: smtp.gmail.com

// Port: 587

How to view windows server's minidump file

2009-07-20T16:46:00.002+08:00

1. Install Microsoft Debugging Tools
2. Open command prompt
3. type \program files\debugging tools\kd -z C:\WINDOWS\Minidump\*.dmp
4. .logopen c:\test.txt
5. .sympath srv*c:\symbols*http://msdl.microsoft.com/download/symbols
6. .reload;!analyze -v;r;kv;lmnt;.logclose;q
7. Now you can open c:\test.txt with notepad to view the content.

How to reset auto increment value in SQL server

2009-06-07T21:03:00.001+08:00

DBCC CHECKIDENT ('tablename', RESEED, newseed)

2009-06-06T21:36:00.001+08:00

10 Must have free windows downloads.

1. Google Chrome
2. Google Picasa
3. Google Earth
4. Foxit Reader
5. doPDF
6. TeraCopy
7. Revo Uninstaller
8. UltraVNC
9. Notepad++
10. Digsby

Useful commands

2009-05-01T15:20:00.001+08:00

conf - NetMeeting
ipconfig - find out current IP address
compmgmt.msc - Computer management
devmgmt.msc - Device manager
diskmgmt.msc - Disk management
dfrg.msc - Disk defrag
eventvwr.msc - Event viewer
fsmgmt.msc - Shared folders
gpedit.msc - Group policies
lusrmgr.msc - Local users and groups
perfmon.msc - Performance monitor
rsop.msc - Resultant set of policies
secpol.msc - Local security settings
services.msc - Various Services
msconfig - System Configuration Utility
regedit - Registry Editor
msinfo32 System Information
sysedit System Edit
win.ini - windows loading information(also system.ini)
winver - Shows current version of windows
mailto: - Opens default email client
command - Opens command prompt

How to disable Autorun in Windows XP to prevent virus infection?

2009-05-01T08:56:00.003+08:00

In Windows click "Start", then click "Run"

Type "regedit" click "OK"
Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Cdrom
Change DWAORD value of "Autorun" to 0 (default is 1)
Click OK.
Reboot.

How not to give a presentation?

2009-01-14T13:24:00.002+08:00

I found a very interesting power point slides.

| View | Upload your own

Key mapping for VMware under Ubuntu 8.10

2008-11-11T14:14:00.000+08:00

Recently I have been playing Ubuntu 8.10 and found out a problem.
When I installed a windows under VMware in Ubuntu, the key mapping was wrong.
It will not let me use arrow, insert, delete, backspaces, etc.

I have found out a solution.

1. Go to Terminal
2. Type gedit ~/.vmware/config
3. In the config file, type "xkeymap.nokeycodeMap = true" without the quotes.

Restard VMware and it would be fixed.

Biomedical Informatics Introduction Presentation @ Taipei Medical University

2008-10-01T15:32:00.000+08:00

This Friday, I will be the main presentor for the biomedical informatics class in Taipei Medical University. I hope everything will go smoothly.

Screen Scraping made simple

2008-09-16T12:04:00.000+08:00

If you are using .NET, simply use the following function to get HTML string from an URL.

public static string getHTML(string url)
    {
     return new System.Net.WebClient().DownloadString(url);
    }

Display ASP.NET's menu in Safari or Google's Chrome

2008-09-12T11:52:00.001+08:00

To fix the incorrect and ugly rendering of ASP.NET's menu component in Apple's Safari or Google's Chrome browsers. You need to do the following.

1. Make sure you have admin privilages

2. Go to

C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\CONFIG\Browsers

3. Open up mozilla.browser with notepad or any other text editor

4. Find this section

5. Delete enitre section within section

6. Under command prompt, run

c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\aspnet_regbrowsers.exe -i

After the above steps, the rendering of an ASP.NET menu will be the same as it is rendered on IE.

KIS registry entries

2008-07-14T12:05:00.000+08:00

Free Access to KAV/KIS 6.0/7.0:

1.Shut down Kaspersky.

2.Run regedit, and remove the following registries. (Key Removal)

HKEY_LOCAL_MACHINE\SOFTWARE\KasperskyLab\LicStorage

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\RNG

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\SPC\Certificates

3.Run Kaspersky, choose 30-day trial key and activate.

4.When the 30-day trial key expired, run these steps again.

When good people leave

2008-04-30T14:35:00.000+08:00

Why are star employees so hard to keep?

A SENIOR manager was complaining that no matter what they did, good people tended to leave the company after a few years. He was at his wits’ end.

To be fair, he is worth his salt as a leader of the team. He believes in keeping good people. But why are his “stars” leaving?

Ask any clever executive and he will give you a list of reasons why he will stay with a company and why he will walk away despite the remuneration package. The main problem lies with their immediate supervisors, who really have no clue about nurturing them and getting the best out of them.

Hiring talented people is hard enough but trying to keep them can be harder because job opportunities abound and talented people will find little “niches” where they fit perfectly. Again these “stars” are visible and marketable and a clever employer would try to lure them over.

Ask a talented executive the real reason why he/she is leaving and you might get the following reasons:

Bosses who have gone up the corporate ladder with no leadership skills training. They have big egos and few or non-existent leadership skills. They bully their staff, blame others and find convenient scapegoats for their mistakes and feel threatened by staff who appear clever or more skilled than them. Such bosses are commonly found in the corporate world; most of them stay where they are, torturing their staff, because they have a “godfather” in senior management position. In turn, senior management finds it increasingly difficult to acknowledge the fact that its choice of “manager” is suspect.

The “nature of the job”. Clever executives want challenges that drive them towards excellence. One little flaw in their character is that they get bored easily. That is why bosses need to consider how they can get the best from their staff. When you expect your staff to do the same job year in and year out, with no “escape clause”, they will leave – no matter what you pay. Remember, the market will bear the cost of excellence.

Lack of “succession planning”. If an organisation does not have one in place, the message you give your staff is: “we do not have a career path for you.” This is tough on young, energetic people who have personal goals, including going up the corporate ladder. So if the boss has no plans for the employees, they will find a company that has one.

The work environment. If bosses do not generate a good corporate culture, the staff will lose their motivation. A career will become “just a job”. What drives people away? A department in which the staff is not nurtured, a company where bosses are indifferent to the needs of the staff, or a place where no one practises basic courtesies.

Standards and procedures in an office. If there is favouritism and the boss’ decisions smack of discrimination, if people abuse the system and no one cares, then good people leave.

Lack of learning opportunities. Many companies feel that training is a waste of money, not realising that it is one way to show your staff that you care about their development, both personal and professional. I knew of one boss who refused to do soft-skills training because it would not “benefit” the company and only develop the person.

Every time a company loses its staff, the losses are greater than what you see on the surface. Look at the visible and the hidden costs. To recruit people, a company spends money on advertisements and interviews (which also take time). Next, new recruits need training. Then there are the remuneration and other benefits that need to be considered. The list goes on. Imagine if you work in a company where there is high turnover and no one cares. It is hard-earned money which could be put to better use.

Many young people do not want to work for someone else. They do not suffer fools gladly and you cannot blame them. It is pathetic to see highly-placed leaders who are unable to handle issues or crises – and they make no apologies for that. The sad fact remains that we are willing to put up with mediocrity and suffer in silence.

Human resource experts feel that greater synergy of human resource involves “job designing”. Bosses need to find out more about the “passion, interests and desires” of executives. What will challenge them and bring out the best in them? Succession planning could also be based on these principles.

We do not have to look far. Great industrialists are people who take challenges despite overwhelming odds. They have the ability to attract the best talent in the world because they are able to challenge young people to take risks, look beyond their scope of work, be creative and do the unthinkable.

There was once an IT expert who was trying to improve a mechanical device. He finally succeeded and, with great enthusiasm, ran to his boss’ room to show him what he’d done.

The boss, excited, jumped up, shook his hand vigorously and said: “Wait, I must give you a reward.”

Looking around the office and pulling out his drawers, all he found was his lunch – a banana. He handed the banana to the staff and said: “Have this.”

The subordinate walked away, quite puzzled with his “prize”. But he was greatly thrilled when he was later awarded the “Best Innovation Prize”, which was a “golden banana”.

He still works for the company.

Find the CultureInfo by ISO Currency Code

2008-01-03T15:35:00.002+08:00

Below is the code that find the CultureInfo by ISO Currency Code

protected CultureInfo CultureInfoFromCurrencyISO( string isoCode )
{
CultureInfo[] cultures = CultureInfo.GetCultures(CultureTypes.SpecificCultures);

foreach (CultureInfo ci in cultures)
{
RegionInfo ri = new RegionInfo(ci.LCID);
if (ri.ISOCurrencySymbol == isoCode)
{
return ci;
}
}
return null;
}

// Since one ISO Currency Code may be associated with more than one LCIDs
// We could rewrite the code to the following

public static IList CultureInfoFromCurrencyISO(string isoCode)
{
    CultureInfo[] cultures = CultureInfo.GetCultures(CultureTypes.SpecificCultures);
    IList Result = new ArrayList();
    foreach (CultureInfo ci in cultures)
    {
        RegionInfo ri = new RegionInfo(ci.LCID);
        if (ri.ISOCurrencySymbol == isoCode)
        {
            if(!Result.Contains(ci))
                Result.Add(ci);
        }
    }
    return Result;
}

Sending Mail with ASP.NET 2.0

2006-12-18T14:33:00.000+08:00

MailMessage msg = new MailMessage();
msg.From = new MailAddress("address@domain.com", "Person's Name");
msg.To.Add(new MailAddress("destination@domain.com",
"Addressee's Name");
msg.To.Add(new MailAddress("destination2@domain.com",
"Addressee 2's Name");
msg.Subject = "Message Subject";
msg.Body = "Mail body content";
msg.IsBodyHtml = true;
msg.Priority = MailPriority.High;
SmtpClient c = new SmtpClient("mailserver.domain.com");
c.Send(msg);

A Single Sign-in Web Service in ASP.NET

2006-08-25T17:41:00.000+08:00

Most of today's sites require users to undertake a registration process to allow the site owners to keep in touch with, or offer services to, those visitors. Building up a user base like this requires patience and dedication. Offer a new service or a new Website, however, and, typically, you'll need to start your user base from scratch yet again.

This article outlines a strategy for creating portable membership tools. We'll see how Web Services and server controls give you ability to produce a single sign-in for all your sites and resources.

The Challenge

The notion of a single sign-in for a Website has been around for years. Most notably, Microsoft's implementation in the form of the .NET Passport, and the Liberty Alliance Project (backed by big hitters like Visa and GM), have had moderate success in saving users and developers from the issues of site membership.

However, the license fees of systems like Passport put it out of the reach of many Web developers. Passport, for example, costs $10,000 a year and an additional $1,500 compliance fee per URL.

While the tools outlined in this article won't give you all the advantages of using Passport (most notably, Passport's 200 million-strong user base, or its security), the solution we'll discuss does offer a simple method of organising your user base over multiple sites or resources.

Architecture

The design of the tools needs to be such that we can create separate applications -- even non-.NET applications -- and still access and authenticate our user base.

Web Services

The heart of the login system is a Web service. A Web service allows you to extract and distribute specific functionality of your applications so that it can be reused by other applications, even if they aren't written in .NET. This provides the perfect platform for our login system, affording us the flexibility to produce some of our sites as non-.NET applications; for example, PHP, ASP, or JSP. We can even write desktop applications to include our login functionality.

Database Design

A database will contain information for all our users, and is queried by the Web service to authenticate, locate, and return users to our applications. As only the Web service will communicate with the database directly, our applications will not need to know how to access the database, nor deal with SQL statements.

The Member Object

The Web service will use a Member object defined by us to represent a user of our site. This object will give us access to the details of the currently signed-in user.

User Controls

After we produce our Web service, we can build some ASP.NET user controls that encapsulate the common functionality of user registration and authentication. The user controls will communicate with the Web service, presenting us with simple properties and events to control the membership of our site.

Designing the Login Web Service

The Web service needs to encapsulate all the functionality we'll require to register and authenticate a user; hence it will require the following methods:

bool createUser(Member m)

Member authenticateUser(string userName, string password)

Of course, this isn't all the functionality that's possible. We could, for example, have methods to control the modification of a user, the loss of a password, or the removal of a user from our system. However, this article will concentrate on creation and authentication.

Both of the methods reference an object, Member. This class will represent a user; it contains all the information we know about the user we're dealing with. The class will have the following properties:

string userName;

string hashedPassword;

string emailAddress;

string fullName;

Here's the C# source code for this class. There's nothing fancy here, just code for the four properties:

namespace Sitepoint.SingleLogIn

{

public class Member

{

private string _UserName;

private string _Password;

private string _FullName;

private string _EmailAddress;

public string UserName

{

get

{

return _UserName;

}

set

{

_UserName = value;

}

}

public string Password

{

get

{

return _Password;

}

set

{

_Password = value;

}

}

public string EmailAddress

{

get

{

return _EmailAddress;

}

set

{

_EmailAddress = value;

}

}

public string FullName

{

get

{

return _FullName;

}

set

{

_FullName = value;

}

}

}

}

To create a user on our system, we first create an instance of the Member class and fill it with the personal information for the user. We then pass this to the createUser method on the Web service. This returns true for a successful addition, and false if a problem is found with the information (for example, if the username already exists).

To authenticate a user, we pass that user's username and password to the Web service and, if these details are authenticated, a Member object representing the user is returned.

A database table will be used to store our user details. The fields of this table will correspond to the user information:

Hence, the SQL we'll use to create the table is as follows:

CREATE TABLE User

{

ID int IDENTITY (1,1) NOT NULL,

UserName varchar(200) NOT NULL,

Password varchar(64) NOT NULL,

EmailAddress varchar(200),

FullName varchar(200)

}

With the database created, and our Member class coded, we can now flesh out the methods in the Web service to include our functionality.

The createUser method will first check to see if the username contained within the passed Member object has been registered before (implemented in the private method userExists). If it has, the method will return false. If all is well, however, the user can be added to the database (through the private method addUser).

All passwords are stored as hashes of the original password for the sake of security. As we'll see with the server controls, this functionality is encapsulated. However, if we weren't using the controls -- say we created a non-.NET or desktop application – we'd need to remember that plain text passwords cannot be passed over the network connection.

[WebMethod]

public bool createUser(Member m)

{

//check that the username doesn't already exist

if (!userExists(m.UserName))

{

return false;

}

//add the user

if (!addUser(m))

{

return false;

}

return true;

}

private bool userExists(string UserName)

{

conn.Open();

SqlCommand comm = new SqlCommand("select id from User where username = @username",conn);

SqlParameter p = new SqlParameter("@username",UserName);

comm.Parameters.Add(p);

SqlDataReader r = comm.ExecuteReader();

bool result = r.HasRows;

conn.Close();

return result;

}

private bool addUser(Member m)

{

conn.Open();

SqlCommand comm = new SqlCommand("insert into User(UserName, Password, FullName, EmailAddress) values (@username, @password, @fullname, @emailaddress)",conn);

SqlParameter pUserName = new SqlParameter("@username",m.UserName);

SqlParameter pPassword = new SqlParameter("@password",m.Password);

SqlParameter pFullName = new SqlParameter("@fullname",m.FullName);

SqlParameter pEmailAddress = new SqlParameter("@emailaddress",m.EmailAddress);

comm.Parameters.Add(pUserName);

comm.Parameters.Add(pPassword);

comm.Parameters.Add(pFullName);

comm.Parameters.Add(pEmailAddress);

int result = comm.ExecuteNonQuery();

//we should have 1 result returned. else, it failed

return (result ==1);

}

The authenticateUser method is the meat of our service. By passing a username and a hashed password of the user (taken from a Web form, for example) a Member object that represents the user is returned. The method queries the database to see if a row exists that contains both the username and the password. If a row is found, the user is authenticated, and the object is created from the row. Otherwise, we've been given incorrect credentials, and a null is returned.

[WebMethod]

public Member AuthenticateUser(string UserName, string Password)

{

//check that the username doesn't already exist

return authenticateUser(UserName, Password);

}

private Member authenticateUser(string UserName, string Password)

{

conn.Open();

SqlCommand comm = new SqlCommand("select fullname, emailaddress from User where username = @username AND password = @password",conn);

SqlParameter pUserName = new SqlParameter("@username",UserName);

SqlParameter pPassword = new SqlParameter("@password",Password);

comm.Parameters.Add(pUserName);

comm.Parameters.Add(pPassword);

SqlDataReader r = comm.ExecuteReader();

bool result = r.HasRows;

conn.Close();

if (result)

{

//build a new member object

Member m = new Member();

m.UserName = UserName;

m.Password = Password;

m.FullName = r.GetString(0);

m.EmailAddress = r.GetString(1);

return m;

}

return null;

}

Click here to download the Web Service file. To deploy the service, copy it to your Web application (either through FTP, or by adding it to your Project in Visual Studio.NET)

Designing the User Controls

We can build user controls to encapsulate the creation and authentication of a user in our system. User controls are, in essence, encapsulated areas of a page that you can drop into Web forms to allow the quick reuse of your code. For example, here, we'll be creating Login and Register User forms, both of which we'll place inside a user control file. To use either the login or the registration forms, we'd simply drag and drop (or, if we're not using Visual Studio, reference) the controls onto our pages. Read the MSDN entry for User Controls for more information.

The createUser user control can be placed within a Web Form to offer the automatic registration of a user. The control includes text boxes that allow users to input usernames, passwords, email addresses, and full names.

In the click event of the register button, we call the Web service LogIn, created above, to create the user, and check to see if the procedure was successful or not. If the creation was successful, we redirect to a new page that tells the user what to do next. Otherwise, a previously hidden Label control containing an error message is made visible, and the user tries again.

You can find the completed createUser.ascx file in the code archive. Worthy of note, however, is the click event for the button on our control (the code that's run when the user clicks Register).

Here, the code grabs the information that's input by the user, and fills a Member object, created earlier, with the details:

Sitepoint.SingleLogIn.Member m = new Member();

m.UserName = txtUserName.Text;

m.Password = System.Web.Security.FormsAuthentication.

HashPasswordForStoringInConfigFile(txtPassword.Text, "sha1");

m.FullName = txtFullName.Text;

m.EmailAddress = txtEmailAddress.Text;

We then create an instance of our login service and pass our new member object to it to register the user. If this is successful, we can redirect users to a page that informs them that their registration has been successful. Otherwise, we can show the previously hidden error label, which asks the user to try a different username.

Sitepoint.SingleLogIn.login login = new Sitepoint.SingleLogIn.login();

if (login.createUser(m))

{

//success. user created.

//in this example, we redirect to the success page

Response.Redirect("success.aspx",true);

}

else

{

//try again.

lblError.Visible = true;

}

The authenticateUser user control is very similar to the createUser control; however, when authentication is successful, we set a session cookie to store the Member object we retrieved from the authentication method. In future, we can check to see if this object exists within our cache, and thereby ascertain whether the current user is logged in or not.

Again, you can find the completed authenicateUser.ascx file in the code archive.

This time, we wish to authenticate a user, so we take the username and password input by the user, and with them retrieve the appropriate member object from our Web service:

Sitepoint.SingleLogIn.login l = new Sitepoint.SingleLogIn.login();

Sitepoint.SingleLogIn.Member m = l.AuthenticateUser(txtUserName.Text, System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(txtPassword.Text, "sha1"));

If no member object is returned (i.e. m is null), then no user was found with that username and password combination. If this is the case, we show the error label, and ask the user to try again.

if (m == null)

{

//not authenticated

lblError.Visible = true;

return;

}

Otherwise, we now have an authenticated user. The member object is added to the session state (we can retrieve this through our application at a later time), and an authenticated variable is set to true. This provides a quick method of ascertaining whether a user is authenticated (comparing a Boolean value is much quicker and more efficient than comparing an object to null):

// authenticated

Session["user"] = m;

Session["authenticated"] = true;

Response.Redirect("homepage.aspx");

Using the Login System

It's time to put our code to use!

Using Visual Studio.NET

In the Web application with which you wish to use your login system, add a Web reference to the Login Web service and add the user controls to the project.

Drag and drop the user controls onto the forms with which you wish to log in or create a user.

Without .NET

Upload the login.asmx and your 2 user control files to your Web application directory.

Create a Web service proxy class to the login.asmx service. When compiling the application, make sure you add this proxy class into the command line.

In Web forms with which you wish to use the UserControls, add a directive at the top of the form code.

For the registration (createUser) control, add:

<%@ Register TagPrefix="uc1" TagName="createUser" Src="createUser.ascx" %>

For the login (authenticateUser) control, add:

<%@ Register TagPrefix="uc1" TagName="authenticateUser" Src="authenticateUser.ascx" %>

To use the controls within your page, add the following tag for the registration control:

<uc1:createUser id="CreateUser1" runat="server"></uc1:createUser>

Add the tag below for the login (authenticateUser) control:

<uc1:authenticateUser id="AuthenticateUser1" runat="server"></uc1:authenticateUser>

Now, if you need to ascertain whether the current session is logged in, you can check the Session object to see if a user object exists, like so:

if (Session["user"] != null)

{

//logged in

}

else

{

//no user

}

And, to log out a user, remove the user object from the Session object, as follows:

Session.Remove("user");

Summary

By encapsulating code within Web services and user controls, you can easily make repetitive tasks such as user management simpler to manage. And, by sharing the login system across your sites, not only can you share your membership, you also share the code behind the system, making any updates appear seamlessly across your network.

ASP.NET Single Sign On

2006-08-25T17:08:00.000+08:00

Single Sign-On (SSO) is a hot topic these days. Most clients I worked with have more than one web application running under different versions of .NET framework in different subdomains, or even in different domains and they want to let the user login once and stay logged in when switching to a different web site. Today we will implement SSO and see if we can make it work in different scenarios. We will start with a simple case and gradually build upon it:

SSO for parent and child application in the virtual sub-directory

SSO using different authorization credentials (username mapping)

SSO for two applications in two sub-domains of the same domain

SSO when applications run under different versions of .NET

SSO for two applications in different domains.

SSO for mixed-mode authentication (Forms and Windows)

1. SSO for parent and child application in the virtual sub-directory

Lets assume that we have two .NET applications - Foo and Bar, and Bar is running in a virtual sub-directory of Foo (http://foo.com/bar). Both applications implement Forms authentication. Implementation of Forms authentication requires you to override the Application_AuthenticateRequest, where you perform the authentication and upon successful authentication, call FormsAuthentication.RedirectFromLoginPage, passing in the logged-in user name (or any other piece of information that identifies the user in the system) as a parameter. In ASP.NET the logged-in user status is persisted by storing the cookie on the client computer. When you call RedirectFromLoginPage, a cookie is created which contains an encrypted FormsAuthenticationTicket with the name of the logged-in user . There is a section in web.config that defines how the cookie is created:

The important attributes here are name and protection. If you make them match for both Foo and Bar applications, they will both write and read the same cookie using the same protection level, effectively providing SSO:

When protection attribute is set to "All", both encryption and validation (via hash) is applied to the cookie. The default validation and encryption keys are stored in the machine.config file and can be overridden in the application’s web.config file. The default value is this:

IsolateApps means that a different key will be generated for every application. We can’t have that. In order for the cookie to be encrypted and decrypted with the same key in all applications either remove the IsolateApps option or better yet, add the same concrete key to the web.config of all applications using SSO:

If you are authenticating against the same users store, this is all it takes – a few changes to the web.config files.

2. SSO using different authorization credentials (username mapping)

But what if the Foo application authenticates against its own database and the Bar application uses Membership API or some other form of authentication? In this case the automatic cookie that is created on the Foo is not going to be any good for the Bar, since it will contain the user name that makes no sense to the Bar.

To make it work, you will need to create the second authentication cookie especially for the Bar application. You will also need a way to map the Foo user to the Bar user. Lets assume that you have a user "John Doe" logging in to the Foo application and you determined that this user is identified as "johnd" in the Bar application. In the Foo authentication method you will add the following code:

FormsAuthenticationTicket fat = new FormsAuthenticationTicket(1, "johnd", DateTime.Now, DateTime.Now.AddYears(1), true, "");

HttpCookie cookie = new HttpCookie(".BarAuth");

cookie.Value = FormsAuthentication.Encrypt(fat);

cookie.Expires = fat.Expiration;

HttpContext.Current.Response.Cookies.Add(cookie);

FormsAuthentication.RedirectFromLoginPage("John Doe");

User names are hard-coded for demonstration purposes only. This code snippet creates the FormsAuthenticationTicket for the Bar application and stuffs it with the user name that makes sense in the context of the Bar application. And then it calls RedirectFromLoginPage to create the correct authentication cookie for the Foo application. If you changed the name of forms authentication cookie to be the same for both applications (see our previous example), make sure that they are different now, since we are not using the same cookie for both sites anymore:

Now when the user is logged in to Foo, he is mapped to the Bar user and the Bar authentication ticket is created along with the Foo authentication ticket. If you want it to work in the reverse direction, add similar code to the Bar application:

FormsAuthenticationTicket fat = new FormsAuthenticationTicket(1, "John Doe", DateTime.Now, DateTime.Now.AddYears(1), true, "");

HttpCookie cookie = new HttpCookie(".FooAuth");

cookie.Value = FormsAuthentication.Encrypt(fat);

cookie.Expires = fat.Expiration;

HttpContext.Current.Response.Cookies.Add(cookie);

FormsAuthentication.RedirectFromLoginPage("johnd");

Also make sure that you have the <machineKey> element in web.config of both applications with matching validation and encryption keys.

3. SSO for two applications in two sub-domains of the same domain

Now what if Foo and Bar are configured to run under different domains http://foo.com and http://bar.foo.com. The code above will not work because the cookies will be stored in different files and will not be visible to both applications. In order to make it work, we will need to create domain-level cookies that are visible to all sub-domains. We can’t use RedirectFromLoginPage method anymore, since it doesn’t have the flexibility to create a domain-level cookie. So we do it manually:

Note the highlighted lines. By explicitly setting the cookie domain to ".foo.com" we ensure that this cookie will be visible in both http://foo.com and http://bar.foo.com or any other sub-domain. You can also specifically set the Bar authentication cookie domain to "bar.foo.com". It is more secure, since other sub-domains can’t see it now. Also notice that RFC 2109 requires two periods in the cookie domain value, therefore we add a period in the front – ".foo.com"

Again, make sure that you have the same <machineKey> element in web.config of both applications. There is only one exception to this rule and it is explained in the next secion.

4. SSO when applications run under different versions of .NET

It is possible that Foo and Bar applications run under different version of .NET. In this case the above examples will not work. It turns out that ASP.NET 2.0 is using a different encryption method for authorization tickets. In ASP.NET 1.1 it was 3DES, in ASP.NET 2.0 it is AES. Fortunately, a new attribute was introduced in ASP.NET 2.0 for backwards compatibility

Setting decryption="3DES" will make ASP.NET 2.0 use the old encryption method, making the cookies compatible again. Don’t try to add this attribute to the web.config of the ASP.NET 1.1 application. It will cause an error.

5. SSO for two applications in different domains.

We’ve been quite successful creating shared authentication cookies so far, but what if Foo and Bar are in different domains – http://foo.com and http://bar.com? They cannot possibly share a cookie or create a second cookie for each other. In this case each site will need to create its own cookies, and call the other site to verify if the user is logged in elsewhere. One way to do it is via a series of redirects.

In order to achieve that, we will create a special page (we’ll call it sso.aspx) on both web sites. The purpose of this page is to check if the cookie exists in its domain and return the logged in user name, so that the other application can create a similar cookie in its own domain. This is the sso.aspx from Bar.com:

<%@ Page Language="C#" %>

void Page_Load()

{

// this is our caller, we will need to redirect back to it eventually

UriBuilder uri = new UriBuilder(Request.UrlReferrer);

HttpCookie c = HttpContext.Current.Request.Cookies[".BarAuth"];

if (c != null && c.HasKeys) // the cookie exists!

{

try

{

string cookie = HttpContext.Current.Server.UrlDecode(c.Value);

FormsAuthenticationTicket fat = FormsAuthentication.Decrypt(cookie);

uri.Query = uri.Query + "&ssoauth=" + fat.Name; // add logged-in user name to the query

}

catch

{

}

}

Response.Redirect(uri.ToString()); // redirect back to the caller

}

</script>

This page always redirects back to the caller. If the authentication cookie exists on Bar.com, it is decrypted and the user name is passed back in the query string parameter ssoauth.

On the other end (Foo.com), we need to insert some code into the http request processing pipeline. It can be in Application_BeginRequest event or in a custom HttpHandler or HttpModule. The idea is to intercept all page requests to Foo.com as early as possible to verify if authentication cookie exists:

1. If authentication cookie exists on Foo.com, continue processing the request. User is logged in on Foo.com

2. If authentication cookie doesn’t exist, redirect to Bar.com/sso.aspx.

3. If the current request is the redirect back from Bar.com/sso.aspx, analyse the ssoauth parameter and create an authentication cookie if necessary.

It looks pretty simple, but we have to watch out for infinite loops:

// see if the user is logged in

HttpCookie c = HttpContext.Current.Request.Cookies[".FooAuth"];

if (c != null && c.HasKeys) // the cookie exists!

{

try

{

string cookie = HttpContext.Current.Server.UrlDecode(c.Value);

FormsAuthenticationTicket fat = FormsAuthentication.Decrypt(cookie);

return; // cookie decrypts successfully, continue processing the page

}

catch

{

}

}

// the authentication cookie doesn't exist - ask Bar.com if the user is logged in there

UriBuilder uri = new UriBuilder(Request.UrlReferrer);

if (uri.Host != "bar.com" || uri.Path != "/sso.aspx") // prevent infinite loop

{

Response.Redirect( http://bar.com/sso.aspx);

}

else

{

// we are here because the request we are processing is actually a response from bar.com

if (Request.QueryString["ssoauth"] == null)

{

// Bar.com also didn't have the authentication cookie

return; // continue normally, this user is not logged-in

} else

{

// user is logged in to Bar.com and we got his name!

string userName = (string)Request.QueryString["ssoauth"];

// let's create a cookie with the same name

FormsAuthenticationTicket fat = new FormsAuthenticationTicket(1, userName, DateTime.Now, DateTime.Now.AddYears(1), true, "");

HttpCookie cookie = new HttpCookie( ".FooAuth");

cookie.Value = FormsAuthentication.Encrypt(fat);

cookie.Expires = fat.Expiration;

HttpContext.Current.Response.Cookies.Add(cookie);

}

}

The same code should be placed on both sites, just make sure you are using correct cookie names (.FooAuth vs. .BarAuth) on each site. Since the cookie is not actually shared, the applications can have different <machineKey> elements. It is not necessary to synchronize the encryption and validation keys.

Some of us may cringe at the security implications of passing the user name in the query string. A couple of things can be done to protect it. First of all we are checking the referrer and we will not accept the ssoauth parameter from any source other then bar.com/sso.aspx (or foo.com/ssp.aspx). Secondly, the name can easily be encrypted with a shared key. If Foo and Bar are using different authentication mechanisms, additional user information (e.g. e-mail address) can be passed along similarly.

6. SSO for mixed-mode authentication (Forms and Windows)

So far we have dealt with Forms authentication only. But what if we want to authenticate Internet users via Forms authentication first and if it fails, check if the Intranet user is authenticated on the NT domain? In theory we can check the following parameter to see if there is a Windows logon associated with the request:

Request.ServerVariables["LOGON_USER"]

However, unless our site has Anonymous Access disabled, this value is always empty. We can disable Anonymous Access and enable Integrate Windows Authentication for our site in the IIS control panel. Now the LOGON_USER value contains the NT domain name of the logged in Intranet user. But all Internet users get challenged for the Windows login name and password. Not cool. We need to be able to let the Internet users login via Forms authentication and if it fails, check their Windows domain credentials.

One way to solve this problem is to have a special entry page for Intranet users that has Integrate Windows Authentication enabled, validates the domain user, creates a Forms cookie and redirects to the main web site. We can even conceal the fact that Intranet users are hitting a different page by making a Server.Transfer.

There is also an easier solution. It works because of the way IIS handles the authentication process. If anonymous access is enabled for a web site, IIS is passing requests right through to the ASP.NET runtime. It doesn’t attempt to perform any kind of authentication. However, if the request results in an authentication error (401), IIS will attempt an alternative authentication method specified for this site. You need to enable both Anonymous Access and Integrated Windows Authentication and execute the following code if Forms authentication fails:

if (System.Web.HttpContext.Current.Request.ServerVariables["LOGON_USER"] == "") {

System.Web.HttpContext.Current.Response.StatusCode = 401;

System.Web.HttpContext.Current.Response.End();

}

else

{

// Request.ServerVariables[ "LOGON_USER"] has a valid domain user now!

}

When this code executes, it will check the domain user and will get an empty string initially. It will then terminate the current request and return the authentication error (401) to IIS. This will make the IIS use the alternative authentication mechanism, which in our case is Integrated Windows Authentication. If the user is already logged in to the domain, the request will be repeated, now with the NT domain user information filled-in. If the user is not logged in to the domain, he will be challenged for the Windows name/password up to 3 times. If the user cannot login after the third attempt, he will get the 403 error (access denied).

Conclusion

We have examined various scenarios of Single Sign-On for two ASP.NET applications. It is also quite possible to implement SSO for heterogeneous systems spawning across different platforms. Ideas remain the same, but the implementation may require some creative thinking.

ThinkPad X32 can't run IPCONFIG

2006-08-09T11:31:00.000+08:00

* ThinkPad X32 can't run IPCONFIG
* When running ipconfig in the command line, an error message appeared as follow

c:\ipconfig /all
Windows IP Configuration
An internal error occurred: A device attached to the system is not
functioning.
Please contact Microsoft Product Support Services for further help.
Additional information: Unknown media status code.

Solution:
http://support.microsoft.com/default.aspx?scid=kb;en-us;239924
1. Use Registry Editor (Regedt32.exe) to view the following key in the registry:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters
Add the following registry value:
Value Name: DisableDHCPMediaSense
Data Type: REG_DWORD -Boolean
Value Data Range: 0, 1 (False, True) Default: 0 (False)
Description: This parameter controls DHCP Media Sense behavior. If you set this value data to 1, DHCP, and even non-DHCP, clients ignore Media Sense events from the interface. By default, Media Sense events trigger the DHCP client to take an action, such as attempting to obtain a lease (when a connect event occurs), or invalidating the interface and routes (when a disconnect event occurs).
2. Restart your computer.

Email validation for PHP

2006-02-10T18:05:00.000+08:00

Here is the function to validate an email address with PHP.
It will check whether the domain has a valid mx record or not.

function validate_email($email)
{

// regular expression validation for email address
$regexp = "^([_a-z0-9-]+)(\.[_a-z0-9-]+)*@([a-z0-9-]+)(\.[a-z0-9-]+)*(\.[a-z]{2,4})$";

$valid = 0;

// Validate the syntax
if (eregi($regexp, $email))
{
list($username,$domaintld) = split("@",$email);
// Validate the domain
if (getmxrr($domaintld,$mxrecords))
$valid = 1;
} else {
$valid = 0;
}

return $valid;

}

Simulate register_globals = on in PHP

2005-12-22T13:58:00.000+08:00

Add the following lines on the top of your PHP code. This will get a result similar to switching register_globals=on

foreach($_POST AS $key => $value) { ${$key} = $value; }
foreach($_GET AS $key => $value) { ${$key} = $value; }

Use multiple submit buttons on one form using PHP

2005-11-25T12:18:00.000+08:00

<?php

switch ($_GET['submit']) {

case 'NEW':

print 'This is what happens when new button is clicked.';

break;

case 'SAVE':

print 'This is what happens when save button is clicked.';

break;

case 'EDIT':

print 'This is what happens when edit button is clicked.';

break;

default:

print 'You can put the html form here.';

break;

} // End: switch ($_GET['submit'])

Multiple submit buttons on a single form using JavaScript

2005-11-25T12:03:00.000+08:00

<SCRIPT>

function submitFunction(i) {

if (i==1) document.form1.action=

"http://www.company.com/cgi-bin/cgi1.cgi";

if (i==2) document.form1.action=

"http://www.company.com/cgi-bin/cgi2.cgi";

if (i==3) document.form1.action=

"http://www.company.com/cgi-bin/cgi3.cgi";

document.form1.submit()

}

</SCRIPT>

C# Genrerate Thumbnail Source Code

2005-07-12T13:51:00.000+08:00

protected void genThumbnailPhoto(string fileName, string path)
{
System.IO.FileInfo info = new System.IO.FileInfo(fileName);

using(Bitmap bitmap1 = new Bitmap(fileName, false))
{
int i= 0;
int TWidth;
int THeight;
if(bitmap1.Width >= 90 && bitmap1.Height >=90 )
{
if(bitmap1.Width > bitmap1.Height )
{
TWidth = 90;
i = bitmap1.Width/90;
THeight = bitmap1.Height / i;
}
else
{
THeight = 90;
i = bitmap1.Height/90;
TWidth = bitmap1.Width / i;
}
}
else
{
TWidth = bitmap1.Width;
THeight = bitmap1.Height;

}

using(System.Drawing.Image image =
System.Drawing.Image.FromFile(fileName))
using(Bitmap bitmap = new Bitmap(image, TWidth, THeight))
{
bitmap.Save(path + "/t__" + info.Name , image.RawFormat);
}

}

}

C# Return a web page in a string

2005-07-12T11:52:00.000+08:00

public static string HttpConnection(string strUrl)
{
string strResponse = "";
try
{
System.Net.HttpWebRequest webRequest = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(strUrl);
System.Net.HttpWebResponse webResponse = (System.Net.HttpWebResponse)webRequest.GetResponse();
System.Text.Encoding encode = System.Text.Encoding.GetEncoding("big5");
System.IO.Stream stream = webResponse.GetResponseStream();
System.IO.StreamReader streamReader = new System.IO.StreamReader(stream, encode);
strResponse = streamReader.ReadToEnd();

//-----release the reader and stream resource-----
streamReader.Close();
stream.Close();
}
catch(Exception exp)
{
throw exp;
}
return strResponse;
}

C# Get result of a web page with POST variables

2005-07-12T11:51:00.000+08:00

public static string HttpPOSTConnection(string strUrl,string Param)
{
string strResponse = "";
try
{
string postData = Param;
byte[] byte1=System.Text.Encoding.Default.GetBytes(postData);
// Set the content type of the data being posted.
System.Net.HttpWebRequest webRequest = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(strUrl);
webRequest.Method = "POST";
webRequest.ContentType="application/x-www-form-urlencoded";
// Set the content length of the string being posted.
webRequest.ContentLength=byte1.Length;
System.IO.Stream newStream=webRequest.GetRequestStream();
newStream.Write(byte1,0,byte1.Length);

System.Net.HttpWebResponse webResponse = (System.Net.HttpWebResponse)webRequest.GetResponse();
System.Text.Encoding encode = System.Text.Encoding.GetEncoding("big5");
System.IO.Stream stream = webResponse.GetResponseStream();
System.IO.StreamReader streamReader = new System.IO.StreamReader(stream, System.Text.Encoding.Default);
strResponse = streamReader.ReadToEnd();

//-----release the reader and stream resource-----
newStream.Close();
streamReader.Close();
stream.Close();
}
catch(Exception exp)
{
throw exp;
}
return strResponse;
}

C# Send mail, send web page by email

2005-07-12T11:48:00.000+08:00

using System;
using System.Web.Mail;

namespace NEWS_RANK.util.net
{

public class Mail
{
private static string smtpserver = "127.0.0.1";

public static void sendMail(string To, string From, string Subject, string Body)
{
try
{
//-----Mail properties----
MailMessage mMessage = new MailMessage();
mMessage.From = From;
mMessage.To = To;
mMessage.Subject = Subject;
mMessage.Body = Body;
mMessage.BodyFormat = MailFormat.Html;
//-----Mail Send-----
SmtpMail.SmtpServer = smtpserver;
SmtpMail.Send(mMessage);
}
catch(Exception exp)
{
throw exp;
}
}

public static void sendMailHttpUrl(string To, string From, string Subject, string HttpUrl,string Query,string HttpMethod)
{
try
{
//-----Mail properties------
MailMessage mMessage = new MailMessage();
mMessage.From = From;
mMessage.To = To;
mMessage.Subject = Subject;
string mailContent = "";
if( HttpMethod != null && HttpMethod.ToLower().Equals("post") )
{
Uri baseUri = new Uri(HttpUrl);
string path = baseUri.GetLeftPart(System.UriPartial.Path);
string param = "";
if( Query != null &&amp; Query.Length > 1 )
param = Query;
mailContent = HttpUtil.HttpPOSTConnection(path,param);
}
else mailContent = HttpUtil.HttpConnection(HttpUrl);
mMessage.Body = mailContent;
mMessage.BodyFormat = MailFormat.Html;
//-----Mail Send-----
SmtpMail.SmtpServer = smtpserver;
SmtpMail.Send(mMessage);
}
catch(Exception exp)
{
throw exp;
}
}
}
}

Saving a web page to a file using C#

2005-07-12T11:44:00.000+08:00

public static void HttpConnectionSaveToFile(string strUrl,string SavedPath)
{
System.Net.HttpWebRequest webRequest = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(strUrl);
System.Net.HttpWebResponse webResponse = (System.Net.HttpWebResponse)webRequest.GetResponse();
System.IO.Stream stream = webResponse.GetResponseStream();
System.IO.BinaryReader streamReader = new System.IO.BinaryReader(stream);
byte[] b = streamReader.ReadBytes((int)webResponse.ContentLength);
//-----release the reader and stream resource-----
if (System.IO.File.Exists(SavedPath))
{
//Console.WriteLine("{0} already exists!", SavedPath);
System.IO.File.Delete(SavedPath);
}
System.IO.FileStream fs = new System.IO.FileStream(SavedPath, System.IO.FileMode.CreateNew);
// Create the writer for data.
System.IO.BinaryWriter w = new System.IO.BinaryWriter(fs);
// Write data to Test.data.
w.Write( b );
w.Close();
fs.Close();

streamReader.Close();
stream.Close();
}

SpAcDaemon Virus

2005-03-10T20:37:00.000+08:00

Today I was kind of doing some house keeping job on my computer.
To my supprise, when I went to My Computer -> System Properties,
I was looking at a picture of Bart Simpson and some weird info
like this:

Manufactured and supported by:
SPAC
thespacdude@yahoo.com

and when I clicked on Support Information, it shows:

SPAC
ERROR: Water detected in the BIOS.

Something wonderful has happened,
your computer is alive......

I googled it, I also tried McFee, Symantec, MS AntiSpyware, Adware, SpyBot, F-Secure, etc.
But none would detect any virus or trojans in my computer.
There're 2 strange behavior on my computer recently.
1. At Windows Startup, it plays some weird sound... you hear someone laughing.
2. It changed my OEM information, so I saw "Manufactured and supported by: SPAC"

After about 3 hours of digging thru my registry and system files, I found it.
The file is c:\windows\mssreprc.exe
also it creates a registry key

Name:SpAcDaemon Value: C:\WINDOWS\mssreprc.exe
under HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
It changed my C:\WINDOWS\system32\OEMINFO.INI to the following:

[general]
Manufacturer=SPAC
Model=thespacdude@yahoo.com
[Support Information]
Line1= ERROR: Water detected in the BIOS.
Line2=
Line3= Something wonderful has happened,
Line4= your computer is alive......

and created a Bart Simpson Logo as a bmp file
C:\WINDOWS\system32\Oemlogo.bmp

Import mails from Thunderbird to Microsoft Outlook step by step

2005-02-26T00:26:00.000+08:00

1. Download a program called IMAPSize

2. After installing IMAPSize, run it. You dont have to create an account, just click "no".

3. Click on "tools" -> mbox2eml

4. Locate C:\Documents and Settings\USERNAME\Application Data\Thunderbird\Profiles\xtsb8for.default\Mail\Local Folders\Inbox file, "Inbox" is the mbox file that Thunderbird stores all your inbox mails.

5. Create a folder such as C:\eml and save the eml files there

6. Click on convert, this will convert each of your mail in your Thunderbird mailbox into an eml file.

7. Now you can open Outlook Express.

8. Go to C:\eml, select all eml files, drag and drop them to the Inbox or whatever mail folder you wish in Outlook Express

9. Open Outlook, click on File - Import/export, then import from Outlook Express

How do I add install/uninstall option to a C# windows service program?

2005-01-07T13:20:00.000+08:00

1. Add this to your service project

/*****************************

*

* install.cs

* Install the service

*

*/

using System;

using System.Collections;

using System.ComponentModel;

using System.Configuration.Install;

using System.ServiceProcess;

namespace MyService

{

[RunInstaller(true)]

public class MyInstaller : Installer

{

public MyInstaller()

{

ServiceProcessInstaller spi=new ServiceProcessInstaller();

spi.Account = System.ServiceProcess.ServiceAccount.LocalSystem;

spi.Password = null;

spi.Username = null;

ServiceInstaller si = new ServiceInstaller();

si.StartType =ServiceStartMode.Automatic;
si.ServiceName = new MyService().ServiceName;

this.Installers.Add(spi);

this.Installers.Add(si);

}

}

}

2. Add System.Configuration.Install reference to the project

3. The main function shuold look like this

// The main entry point for the process

static void Main(string[] args)

{

string opt=null;

// install the service if user entered "ServiceMonitor /install"

if(args.Length >0 )

{

opt=args[0];

}

if(opt!=null && opt.ToLower()=="/install")

{

try

{

TransactedInstaller ti= new TransactedInstaller();

MyInstaller mi = new MyInstaller();

ti.Installers.Add(mi);

String path=String.Format("/assemblypath={0}",

System.Reflection.Assembly.GetExecutingAssembly().Location);

String[] cmdline={path};

InstallContext ctx = new InstallContext("",cmdline);

ti.Context =ctx;

ti.Install(new Hashtable());

}

catch(System.Exception exp)

{

Console.WriteLine(exp);

}

}

// uninstall the service if user entered "ServiceMonitor /uninstall"

else if (opt !=null && opt.ToLower()=="/uninstall")

{

try

{

TransactedInstaller ti=new TransactedInstaller();

MyInstaller mi=new MyInstaller();

ti.Installers.Add(mi);

String path = String.Format("/assemblypath={0}",

System.Reflection.Assembly.GetExecutingAssembly().Location);

String[] cmdline={path};

InstallContext ctx = new InstallContext("",cmdline);

ti.Context=ctx;

ti.Uninstall(null);

}

catch(System.Exception exp)

{

Console.WriteLine(exp);

}

}

if(opt==null) // e.g. ,nothing on the command line

{

System.ServiceProcess.ServiceBase[] ServicesToRun;

ServicesToRun = new System.ServiceProcess.ServiceBase[] { new MyService() };

System.ServiceProcess.ServiceBase.Run(ServicesToRun);

}

}

BIG5 字元衝突:: BIG5 string conflict

2004-12-15T09:07:00.000+08:00

Big5中由於設計上的疏失，導致一些屬於控制字元的資料容易引起一些程式環境的誤判。造成顯示出來的中文字不是我們想要的結果。所以我們在寫程式的時候對於中文的處理要特別小心。下面列出了一些容易引發衝碼的文字，寫程式的人，最好都能夠測試下面的字在你的程式中可以正確無誤的被使用。

ASCII(5C) == “\”

A45C么 AE5C娉 B85C稞 C25C擺 A55C功

AF5C珮 B95C鈾 C35C黠 A65C吒 B05C豹

BA5C暝 C45C孀 A75C吭 B15C崤 BB5C蓋

C55C髏 A85C沔 B25C淚 BC5C墦 C65C躡

A95C坼 B35C許 BD5C穀 AA5C歿 B45C廄

BE5C閱 AB5C俞 B55C琵 BF5C璞 AC5C枯

B65C跚 C05C餐 AD5C苒 B75C愧 C15C縷

ASCII(7C) == “|”

AA7C泜 B47C揉 A87C育 BE7C魯 B27C琍

BC7C慝 C67C鸛 A97C尚 B37C逖 BD7C罵

A77C坑 B17C悴 BB7C誡 C57C疊 A67C帆

B07C院 BA7C漏 C47C辮 AB7C咽 B57C稅

BF7C糕 AC7C洱 B67C閏 C07C嚐 AD7C迢

B77C會 C17C舉 A47C弋 AE7C徑 B87C腮

C27C甕 A57C四 AF7C砝 B97C頌 C37C牘

"\"

How to run a piece of JavaScript code after a certain timed delay?

2004-12-10T10:26:00.000+08:00

This allows you to execute a section of code after a specified amount of time
has passed.

Allow EZ_Result to display +5Pages link

2004-12-10T10:20:00.000+08:00

You can download ez_resuls.php from http://php.justinvincent.com/

Allow EZ_Result to display nav bar like this

365 Results: [start] 1 2 3 4 5 +5Pages [last]

For this to work, I added a few lines to the ez_results.php class as follows

/********************************************************

* NAVIGATION FORMATTING

*/

var $show_next_x_page = true;

var $text_hover_msg_next_x = '+NUMBER Pages';

var $text_next_x_page = '+NUMBER Pages';

In function build_navigation(), I added the following.

$current_page = ($_REQUEST['BRSR'] / $this->num_results_per_page) +1;

$page_left = $this->num_pages-$current_page ;

if($this->show_next_x_page)

if ( ($this->num_pages >= $this->num_browse_links) && (($_REQUEST['BRSR']
+ $this->num_results_per_page) < $this->num_results))

{

if(($page_left * $this->num_results_per_page >= $this->num_results
) || ($current_page * $this->num_results_per_page) < $this->num_results
)

{

if($page_left >= $this->next_x_pages){

$cur_a = $_REQUEST['BRSR'] + $this->num_results_per_page * $this->next_x_pages;

$out .= $this->create_link(preg_replace("/\?.*/",'',$_SERVER['PHP_SELF'])
. '?BRSR='. ($cur_a) .$this->qs,$this->merge_num('next_x_page',$this->next_x_pages),$this->merge_num('hover_msg_next_x',$this->next_x_pages),$this->get_style('next')).'
';

}

else{

$cur_a = $_REQUEST['BRSR'] + $this->num_results_per_page * $page_left;

$out .= $this->create_link(preg_replace("/\?.*/",'',$_SERVER['PHP_SELF'])
. '?BRSR='. ($cur_a) .$this->qs,$this->merge_num('next_x_page',$page_left),$this->merge_num('hover_msg_next_x',$page_left),$this->get_style('next')).'
';

}

}

}

How do I identify unknown open ports and their associated applications.?

2004-12-09T17:00:00.000+08:00

You can go to http://www.foundstone.com
and download Fport. It will show you something like this

FPort v2.0 - TCP/IP Process to Port Mapper

Copyright 2000 by Foundstone, Inc.

http://www.foundstone.com

Pid Process Port Proto Path

1764 inetinfo -> 25 TCP C:\WINDOWS\System32\inetsrv\inetinfo.exe

1764 inetinfo -> 80 TCP C:\WINDOWS\System32\inetsrv\inetinfo.exe

1620 Apache -> 81 TCP C:\Apache\Apache2\bin\Apache.exe

988 -> 135 TCP

4 System -> 139 TCP

1764 inetinfo -> 443 TCP C:\WINDOWS\System32\inetsrv\inetinfo.exe

4 System -> 445 TCP

1764 inetinfo -> 1038 TCP C:\WINDOWS\System32\inetsrv\inetinfo.exe

2536 mqsvc -> 1047 TCP C:\WINDOWS\System32\mqsvc.exe

5632 msnmsgr -> 1056 TCP C:\Program Files\MSN Messenger\msnmsgr.exe

5632 msnmsgr -> 1057 TCP C:\Program Files\MSN Messenger\msnmsgr.exe

5632 msnmsgr -> 1058 TCP C:\Program Files\MSN Messenger\msnmsgr.exe

5632 msnmsgr -> 1059 TCP C:\Program Files\MSN Messenger\msnmsgr.exe

5632 msnmsgr -> 1060 TCP C:\Program Files\MSN Messenger\msnmsgr.exe

3076 -> 1062 TCP

1736 FlashComAdmin -> 1111 TCP C:\Program Files\Macromedia\Flash Communica

tion Server MX\FlashComAdmin.exe

3796 OSDK62http -> 1422 TCP C:\Program Files\Openwave\SDK 6.2.2\program

\http\OSDK62http.exe

5480 firefox -> 1668 TCP C:\Program Files\Mozilla Firefox\firefox.ex

e

5480 firefox -> 1669 TCP C:\Program Files\Mozilla Firefox\firefox.ex

e

2536 mqsvc -> 1801 TCP C:\WINDOWS\System32\mqsvc.exe

2492 FlashCom -> 1935 TCP C:\Program Files\Macromedia\Flash Communica

tion Server MX\FlashCom.exe

2184 omtsreco -> 2030 TCP c:\oracle\ora92\bin\omtsreco.exe

2536 mqsvc -> 2103 TCP C:\WINDOWS\System32\mqsvc.exe

2536 mqsvc -> 2105 TCP C:\WINDOWS\System32\mqsvc.exe

2536 mqsvc -> 2107 TCP C:\WINDOWS\System32\mqsvc.exe

How to open a file as a string from a URL in PHP?

2004-12-09T13:41:00.000+08:00

//
// This will read the text file from http://yoursite.com/test.txt

// and store the contents of test.txt into $contents

//

$handle = fopen("http://yoursite.com/test.txt", "rb");

$contents = '';

while (!feof($handle)) {

$contents .= fread($handle, 8192);

}

fclose($handle);

WML 怎麼顯示中文?

2004-12-07T14:02:00.001+08:00

因為 WML 只接受 UNICODE, 如果你沒有經過 convert, 你就會看到亂碼

下面 mb_convert_encoding($str, "UTF-8", "BIG-5"); 就可以把字串 convert
成 Unicode 啦

<?php

// send wml headers

header("Content-type: text/vnd.wap.wml");

echo "<?xml version=\"1.0\"?>";

echo "<!DOCTYPE wml PUBLIC \"-//WAPFORUM//DTD WML 1.1//EN\""

. " \"http://www.wapforum.org/DTD/wml_1.1.xml\">";

?>

<wml>

<card>

<p>

<?php

$str = "哈囉";

$str = mb_convert_encoding($str, "UTF-8", "BIG-5");

print "<br/>Hello World! $str";

?>

</p>

</card>

</wml>

How to create a Hello World WML script using PHP?

2004-12-07T10:14:00.000+08:00

// send wml headers
header("Content-type: text/vnd.wap.wml");
echo "";
echo ". " \"http://www.wapforum.org/DTD/wml_1.1.xml\">";
?>

print "
Hello World!";
?>

How do I schedule the server to generate static HTML files from other dynamic web pages?

2004-11-27T14:14:00.000+08:00

Some people would use Perl or PHP to grab data from the database and generate the HTML when the scripts are executed. I'm just too lazy to write another script for a dynamic web page which is already written in languages such as PHP, Perl, ASP, JSP, ColdFusion, etc.

What I do is create a shell script file and utilize OS' pipe function and a text browser to create the HTML file.

For example: create a text file called generate.sh

lynx -source http://someURL.com/yourCode.asp > yourStaticASP.html
lynx -source http://someURL.com/yourCode.php?Var=123 > yourStaticPHP.html

and do a chmod on the file, make sure it is executable, e.g., chmod u+x generate.sh

You may then schedule this script file in your cron table ;-)

How do I use a hyperlink to POST form variable?

2004-11-27T01:38:00.000+08:00

How do I use a hyperlink to POST form variable?

Simply add a little JavaScript somewhere in the <head> ... </head> part of your page and we're done. The JavaScript would look something like this...

function clickpost(param)

{

document.forms.aform.elements .section.value = param;

document.forms.aform.submit;

return true;

}

Javascript download script

2004-11-27T01:29:00.000+08:00

Some useful regular expressions...

2004-11-27T01:25:00.000+08:00

e-mail (?:(?:\b([_a-z0-9-]+(?:\.[_a

-z0-9-]+)*)@([_a-z0-9-]+(?:\.[_a-z0-9-]+)*)\.(?:[a-z]{2,3})\b))

HTML tag (?:(?:<[^>]+>))
HTML start (?:(?:<[^//][^>]*>))
[HTMLEndTag] (?:(?:]+>))

[QuotedString] (?:(?:[\"](?:(?:[\\][\"])|[^\"]){1,}[\"]))
IP addr
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How Do I get row number with SQL commands in MySQL?

2004-11-27T00:43:00.000+08:00

Let's suppose we have a table look like this

Name PhoneNumber
-------------- --------------------
Peter        415-895-5689
John         408-854-4587
Louis        408-975-5986

And now I want to issue a SQL command which gives back a row number for each record which would look like this

RowNumber Name PhoneNumber
----------------- -------------------- ---------------------
1   Peter        415-895-5689
2   John         408-854-4587
3   Louis        408-975-5986

Under Oracle, this would be simple task, just issue the following SQL command

SELECT rownum, Name, PhoneNumber from table;

However, MySQL does not offer such convinience as rownum. In MySQL, we need to do the following instead.

mysql> SET @rownum := 0;

mysql> SELECT @rownum := @rownum + 1 AS RowNumber, Name, PhoneNumber from table;

Hope this tip can help you solve your current problem :)