| 1 | public class PopMail2 |
| 2 | Inherits System.Web.UI.Page |
| 3 | protected WithEvents Srv as System.Web.UI.WebControls.TextBox |
| 4 | protected WithEvents Passwd as System.Web.UI.WebControls.TextBox |
| 5 | protected WithEvents Button1 as System.Web.UI.WebControls.Button |
| 6 | protected WithEvents Usr as System.Web.UI.WebControls.TextBox |
| 7 | protected WithEvents AnswerTable as System.Web.UI.WebControls.Table |
| 8 | protected WithEvents Answer as System.Web.UI.WebControls.Literal |
| 9 | protected WithEvents MsgCount as System.Web.UI.WebControls.TableCell |
| 10 | protected WithEvents Alliance2 as DPM.Alliance |
| 11 | protected WithEvents Alliance1 as DPM.Alliance |
| 12 | protected WithEvents MsgBoxSize as System.Web.UI.WebControls.TableCell |
| 13 | |
| 14 | private Sub Page_Load(ByVal sender as System.object, ByVal e as System.EventArgs) Handles MyBase.Load |
| 15 | if Page.IsPostBack Then |
| 16 | Dim p as new pop3(Srv.Text) |
| 17 | |
| 18 | Dim success as Boolean = false |
| 19 | |
| 20 | success = p.logon(Usr.Text, Passwd.Text) |
| 21 | if success Then |
| 22 | Answer.Text = "Logon Successfull" |
| 23 | 'display mailbox details |
| 24 | MsgCount.Text = p.MessageCount |
| 25 | MsgBoxSize.Text = p.MailBoxSize |
| 26 | |
| 27 | 'create and array for the mail details |
| 28 | Dim ma(p.MessageCount) as pop3.MailMessage |
| 29 | Dim r as TableRow |
| 30 | Dim c as TableCell |
| 31 | 'cycle through mails, diplsaying size and id |
| 32 | Dim cnt as Integer |
| 33 | for cnt = 1 To p.MessageCount |
| 34 | 'create a new instane of mail in the array |
| 35 | ma(cnt) = new pop3.MailMessage() |
| 36 | ma(cnt).ID = cnt |
| 37 | p.getSize(ma(cnt)) |
| 38 | r = new TableRow() |
| 39 | c = new TableCell() |
| 40 | c.HorizontalAlign = HorizontalAlign.Center |
| 41 | c.Text = ma(cnt).ID.ToString |
| 42 | r.Cells.Add(c) |
| 43 | c = new TableCell() |
| 44 | c.HorizontalAlign = HorizontalAlign.Center |
| 45 | c.Text = ma(cnt).Size.ToString |
| 46 | r.Cells.Add(c) |
| 47 | AnswerTable.Rows.Add(r) |
| 48 | Next |
| 49 | 'For Each m In p.MailMessages |
| 50 | 'Next |
| 51 | 'show table |
| 52 | AnswerTable.Visible = true |
| 53 | else |
| 54 | Answer.Text = "Logon Unsuccessfull" |
| 55 | End if |
| 56 | p.logoff() |
| 57 | End if |
| 58 | End Sub |
| 59 | |
| 60 | class pop3 |
| 61 | 'class for holding details about each mail |
| 62 | public class MailMessage |
| 63 | private _ID as Integer = -1 |
| 64 | Property ID() as Integer |
| 65 | Get |
| 66 | Return _ID |
| 67 | End Get |
| 68 | Set(ByVal Value as Integer) |
| 69 | _ID = Value |
| 70 | End Set |
| 71 | End Property |
| 72 | |
| 73 | private _Size as Integer = 0 |
| 74 | Property Size() as Integer |
| 75 | Get |
| 76 | Return _Size |
| 77 | End Get |
| 78 | Set(ByVal Value as Integer) |
| 79 | _Size = Value |
| 80 | End Set |
| 81 | End Property |
| 82 | End class |
| 83 | |
| 84 | 'a private holder for the number of mails |
| 85 | private _MessageCount as Integer = -1 |
| 86 | readonly Property MessageCount() as Integer |
| 87 | Get |
| 88 | 'if the count has not yet been set, request details from server |
| 89 | if _MessageCount = -1 Then |
| 90 | GetStats() |
| 91 | End if |
| 92 | Return _MessageCount |
| 93 | End Get |
| 94 | End Property |
| 95 | |
| 96 | 'private holder for mailbox size |
| 97 | private _MailBoxSize as Integer = -1 |
| 98 | readonly Property MailBoxSize() as Integer |
| 99 | Get |
| 100 | 'if the size has not yet been set, request details from server |
| 101 | if _MailBoxSize = -1 Then |
| 102 | GetStats() |
| 103 | End if |
| 104 | Return _MailBoxSize |
| 105 | End Get |
| 106 | End Property |
| 107 | |
| 108 | private Sub GetStats() |
| 109 | Dim a as string() |
| 110 | 'issue the stat command to the server |
| 111 | 'split the returned string into an array |
| 112 | a = SendCmd("stat").Split(" ") |
| 113 | |
| 114 | 'set the count |
| 115 | _MessageCount = CType(a(1), Integer) |
| 116 | 'set the size |
| 117 | _MailBoxSize = CType(a(2), Integer) |
| 118 | End Sub |
| 119 | |
| 120 | public function getSize(ByRef m as MailMessage) as Boolean |
| 121 | Dim a() as string |
| 122 | |
| 123 | 'perform the list command |
| 124 | a = SendCmd("list " + m.ID.ToString).Split(" ") |
| 125 | |
| 126 | 'if the command was ok set the message size |
| 127 | if a(0) = "+OK" Then |
| 128 | m.Size = CType(a(2), Integer) |
| 129 | Return true |
| 130 | 'else indicate the mail doesn't exist |
| 131 | else |
| 132 | m.ID = -1 |
| 133 | m.Size = 0 |
| 134 | Return false |
| 135 | End if |
| 136 | End function |
| 137 | |
| 138 | '-- the code below is as before . |
| 139 | |
| 140 | private s as System.Net.Sockets.NetworkStream |
| 141 | private t as new System.Net.Sockets.TcpClient() |
| 142 | private Cnct as Boolean = false |
| 143 | |
| 144 | public Sub new(ByVal Server as string) |
| 145 | 'open port 110 ( the pop3 port ) On the server |
| 146 | Try |
| 147 | 'catch any error resuting from a bad server name |
| 148 | t.Connect(Server, 110) |
| 149 | s = t.GetStream() |
| 150 | 'check that the connection is okay |
| 151 | if Left(getData(), 3) = "+OK" Then |
| 152 | Cnct = true |
| 153 | End if |
| 154 | catch |
| 155 | End Try |
| 156 | End Sub |
| 157 | |
| 158 | public function logon(ByVal User as string, ByVal passwd as string) as Boolean |
| 159 | Dim ret as string |
| 160 | |
| 161 | logon = false |
| 162 | |
| 163 | 'make sure you have a connection |
| 164 | if Cnct Then |
| 165 | 'send the username |
| 166 | ret = SendCmd("user " + User) |
| 167 | |
| 168 | 'if that was successfull, send the password |
| 169 | if Left(ret, 3) = "+OK" Then |
| 170 | ret = SendCmd("pass " + passwd) |
| 171 | |
| 172 | 'if that was successfull set the return flas to true |
| 173 | if Left(ret, 3) = "+OK" Then |
| 174 | logon = true |
| 175 | End if |
| 176 | End if |
| 177 | End if |
| 178 | End function |
| 179 | |
| 180 | public function logoff() as string |
| 181 | if Cnct Then |
| 182 | logoff = SendCmd("QUIT") |
| 183 | End if |
| 184 | End function |
| 185 | |
| 186 | private function SendCmd(ByVal Cmd as string) as string |
| 187 | Dim bCmd as byte() |
| 188 | 'byte encode the command |
| 189 | bCmd = System.Text.Encoding.ASCII.GetBytes(Cmd + vbCrLf) |
| 190 | |
| 191 | 'send the data |
| 192 | s.Write(bCmd, 0, bCmd.Length) |
| 193 | SendCmd = getData() |
| 194 | End function |
| 195 | |
| 196 | private function getData() as string |
| 197 | Dim bData(t.ReceiveBufferSize) as byte |
| 198 | 'get the response |
| 199 | s.Read(bData, 0, bData.Length) |
| 200 | 'return the response |
| 201 | getData = System.Text.Encoding.ASCII.GetString(bData) |
| 202 | End function |
| 203 | End class |
| 204 | |
| 205 | End class |
| 206 | |
