WEB邮件程序

开发平台：
Visual C++

GmailExtract.cs.svn-base：源码内容
							//Code by Gnilly (http://gnillydev.blogspot.com)
//Offical site: http://opencontacts.sourceforge.net
//This program is free software: you can redistribute it and/or modify
//it under the terms of the GNU Lesser General Public License as published by
//the Free Software Foundation, either version 3 of the License, or
//(at your option) any later version.
//This program is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//GNU Lesser General Public License for more details.
//You should have received a copy of the GNU Lesser General Public License
//along with this program.  If not, see <http://www.gnu.org/licenses/>.
using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Text;
using Utilities.Web;
namespace OpenContactsNet
{
    public class GmailExtract : IMailContactExtract
    {
        private const string ContinueUrl = "http://mail.google.com/mail?ui=html&amp;zy=l";
        private const string ExportUrl = "https://mail.google.com/mail/contacts/data/export?exportType=ALL&groupToExport=&out=GMAIL_CSV";
        private const string LoginRefererUrl = "https://www.google.com/accounts/ServiceLogin?service=mail&passive=true&rm=false&continue=http%3A%2F%2Fmail.google.com%2Fmail%2F%3Fui%3Dhtml%26zy%3Dl&ltmpl=default&ltmplcache=2";
        private const string LoginUrl = "https://www.google.com/accounts/ServiceLoginAuth?service=mail";
        private const string UserAgent = "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; EmbeddedWB 14.52 from: http://www.bsalsa.com/ EmbeddedWB 14.52; .NET CLR 1.1.4322; .NET CLR 2.0.50727; InfoPath.1; .NET CLR 1.0.3705; .NET CLR 3.0.04506.30)";
        #region IMailContactExtract Members
        public bool Extract( NetworkCredential credential, out MailContactList list )
        {
            bool result = false;
            list = new MailContactList();
            try
            {
                CookieCollection cookies = new CookieCollection();
                // Prepare login form data
                HttpValueCollection loginFormValues = new HttpValueCollection();
                loginFormValues[ "ltmpl" ] = "default";
                loginFormValues[ "ltmplcache" ] = "2";
                loginFormValues[ "continue" ] = ContinueUrl;
                loginFormValues[ "service" ] = "mail";
                loginFormValues[ "rm" ] = "false";
                loginFormValues[ "hl" ] = "en";
                loginFormValues[ "Email" ] = credential.UserName;
                loginFormValues[ "Passwd" ] = credential.Password;
                loginFormValues[ "PersistentCookie" ] = "true";
                loginFormValues[ "rmShown" ] = "1";
                loginFormValues[ "null" ] = "Sign In";
                // Convert to bytes
                byte[] loginPostData = Encoding.UTF8.GetBytes( loginFormValues.ToString( true ) );
                HttpWebRequest loginRequest = ( HttpWebRequest ) WebRequest.Create( LoginUrl );
                loginRequest.Method = "POST";
                loginRequest.UserAgent = UserAgent;
                loginRequest.Referer = LoginRefererUrl;
                loginRequest.ContentType = "application/x-www-form-urlencoded";
                loginRequest.ContentLength = loginPostData.Length;
                loginRequest.AllowAutoRedirect = false;
                // Create cookie container
                loginRequest.CookieContainer = new CookieContainer();
                // Add post data to request
                Stream stream;
                using ( stream = loginRequest.GetRequestStream() )
                {
                    stream.Write( loginPostData, 0, loginPostData.Length );
                }
                HttpWebResponse loginResponse = ( HttpWebResponse ) loginRequest.GetResponse();
                cookies.Add( loginResponse.Cookies );
                // Create request to export Google CSV page
                HttpWebRequest contactsRequest = ( HttpWebRequest ) WebRequest.Create( ExportUrl );
                contactsRequest.Method = "GET";
                contactsRequest.UserAgent = UserAgent;
                contactsRequest.Referer = loginResponse.ResponseUri.ToString();
                // use cookie gotten from login page
                contactsRequest.CookieContainer = new CookieContainer();
                foreach ( Cookie cookie in cookies )
                {
                    contactsRequest.CookieContainer.Add( cookie );
                }
                HttpWebResponse exportResponse = ( HttpWebResponse ) contactsRequest.GetResponse();
                // Read data from response stream
                string csvData;
                using ( Stream responseStream = exportResponse.GetResponseStream() )
                {
                    using ( StreamReader streamRead = new StreamReader( responseStream ) )
                    {
                        csvData = streamRead.ReadToEnd();
                    }
                }
                // parse google csv
                string[] lines = csvData.Split( 'n' );
                foreach ( string line in lines )
                {
                    string[] values = line.Split( ',' );
                    if ( values.Length < 2 )
                    {
                        continue;
                    }
                    MailContact mailContact = new MailContact();
                    mailContact.Email = values[ 1 ];
                    mailContact.Name = values[ 0 ];
                    list.Add( mailContact );
                }
                result = true;
            }
            catch
            {
            }
            return result;
        }
        #endregion
    }
}

						