Read POP3 Mail using Winsock
Working pop3Email class is based on the code from http://fox.wikis.com/wc.dll?Wiki~GetPopEmail by William Steinford.
Sample code that shows how to use the class is included below it.
It will only run on PC with VFP installed. See Appropriate license for this class not found error at runtime for details.
In order to run it w/o VFP installed, create a new form, drop MS Winsock ActiveX control on it and save as Winsock class in Winsock.vcx. After that change the Init of the class as follows
1 2 3 4 5 6 PROCEDURE INIT THIS.oWsform = NEWOBJECT("Winsock", "Winsock") THIS.oSocket = THIS.oWsform.Olecontrol1.Object *THIS.oSocket = CREATEOBJECT("mswinsock.winsock") ENDPROC
Pop3Email class
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 * pop3EmailClass.prg #DEFINE crlf CHR(13) + CHR(10) #DEFINE CONNECTION_CHECK 0 #DEFINE USER_CHECK 1 #DEFINE PASSWORD_CHECK 2 #DEFINE QUIT_CHECK 3 #DEFINE DELETE_CHECK 4 #DEFINE RSET_CHECK 5 #DEFINE STAT_CHECK 6 #DEFINE NOOP_CHECK 7 #DEFINE LIST_CHECK 8 #DEFINE RETR_CHECK 9 #DEFINE vbString 8 #DEFINE TIME_OUT 5 DEFINE CLASS Pop3Mail AS CUSTOM cErrorMessage = "" cPassword = "" cUser = "" cServerPort = 110 cServerName = "" cMsgContents = "" nTotalMailSize = 0 nNumberOfEmails = 0 lConnected = .F. nConnectTimeOut = 5 cServerResponse = "" oWsform = .NULL. oSocket = .NULL. DIMENSION aSizeOfMsg[1] PROCEDURE INIT *THIS.oWsform = NEWOBJECT("Winsock", "Winsock") *THIS.oSocket = THIS.oWsform.Olecontrol1.Object THIS.oSocket = CREATEOBJECT("mswinsock.winsock") ENDPROC FUNCTION Connect(tcServerName, tcUser, tcPassword) LOCAL lnTime, lConnected THIS.cServerName = ALLTRIM( IIF( VARTYPE(tcServerName)="C", tcServerName, THIS.cServerName ) ) THIS.cUser = ALLTRIM( IIF( VARTYPE(tcUser)="C", tcUser, THIS.cUser ) ) THIS.cPassword = IIF( VARTYPE(tcPassword)="C", tcPassword, THIS.cPassword ) This.lConnected = .F. THIS.oSocket.CONNECT(THIS.cServerName, THIS.cServerPort) && 110 Pop3 Port lnTime = SECONDS() DO WHILE THIS.oSocket.State <> 7 * ?"Waiting to connect..." INKEY(0.01) * ?"state="+tran(THIS.oSocket.State) IF This.Elapsed(SECONDS(), lnTime) > This.nConnectTimeOut THIS.cErrorMessage = "Time out connecting to the server " + THIS.cServerName RETURN .F. ENDIF ENDDO This.lConnected = .T. * ?"State="+tran(THIS.oSocket.State) IF NOT THIS.CheckResponse(CONNECTION_CHECK) RETURN .F. ENDIF IF NOT THIS.SendMessageOk( "USER " + This.cUser, User_CHECK ) RETURN .F. ENDIF IF NOT THIS.SendMessageOk( "PASS " + This.cPassword, Password_CHECK ) RETURN .F. ENDIF RETURN .T. *--------------------------------------------------- FUNCTION DELETE(tnMsgNumber) RETURN THIS.SendMessageOk( "DELE " + TRANSFORM(tnMsgNumber), DELETE_CHECK ) *--------------------------------------------------- FUNCTION NOOP RETURN THIS.SendMessageOk( "NOOP ", NOOP_CHECK ) *--------------------------------------------------- * Return the Msg Size for given message number FUNCTION GetMessageSize(tnMsgNumber) IF ALEN(THIS.aSizeOfMsg) <= tnMsgNumber RETURN 0 ENDIF RETURN THIS.aSizeOfMsg[tnMsgNumber+1] *--------------------------------------------------- FUNCTION RESET() RETURN THIS.SendMessageOk( "RSET ", RSET_CHECK ) *--------------------------------------------------- * cMsgContents will hold the message body FUNCTION Retrieve(tnMsgNumber) RETURN THIS.SendMessageOk( "RETR " + TRANSFORM(tnMsgNumber), RETR_CHECK ) *--------------------------------------------------- FUNCTION Statistics() RETURN THIS.SendMessageOk( "STAT ", STAT_CHECK ) *--------------------------------------------------- FUNCTION ListMessages RETURN THIS.SendMessageOk( "LIST ", LIST_CHECK ) *--------------------------------------------------- FUNCTION Disconnect() RETURN THIS.SendMessageOk( "QUIT ", QUIT_CHECK ) *--------------------------------------------------- FUNCTION SendMessageOk( tcMsg, tnType ) THIS.oSocket.SendData(tcMsg+crlf) RETURN THIS.CheckResponse(tnType) *--------------------------------------------------- FUNCTION CheckResponse(ResponseType) LOCAL lcBuf, laList, lnI, lcSamp, lnLine lcBuf = THIS.ReadData() THIS.cServerResponse = lcBuf DO CASE CASE ResponseType = CONNECTION_CHECK IF lcBuf="-ERR" THIS.cErrorMessage = "Bad Connection" RETURN .F. ENDIF CASE ResponseType = User_CHECK IF lcBuf="-ERR" cErrorMessage = "Bad User Name" RETURN .F. ENDIF CASE ResponseType = Password_CHECK IF lcBuf="-ERR" THIS.cErrorMessage = "Bad Password Name" RETURN .F. ENDIF CASE ResponseType = QUIT_CHECK IF lcBuf="-ERR" THIS.cErrorMessage = "Error occurred during QUIT" RETURN .F. ENDIF CASE ResponseType = DELETE_CHECK IF lcBuf="-ERR" THIS.cErrorMessage = "Error occurred during DELE" RETURN .F. ENDIF CASE ResponseType = RSET_CHECK IF lcBuf="-ERR" THIS.cErrorMessage = "Error occurred during RSET" RETURN .F. ENDIF CASE ResponseType = STAT_CHECK IF lcBuf="-ERR" THIS.cErrorMessage = "Error occurred during STAT" RETURN .F. ENDIF DIMENSION laList[1] IF ALINES(laList, lcBuf,.T., SPACE(1)) <> 3 THIS.cErrorMessage = "Error occurred during STAT" RETURN .F. ENDIF THIS.nNumberOfEmails = INT(VAL(laList[2])) THIS.nTotalMailSize = INT(VAL(laList[3])) CASE ResponseType = NOOP_CHECK IF lcBuf="-ERR" THIS.cErrorMessage = "Error occurred during NOOP" RETURN .F. ENDIF CASE ResponseType = LIST_CHECK IF lcBuf="-ERR" THIS.cErrorMessage = "Error occurred during LIST" RETURN .F. ENDIF lnI = 1 lcSamp = SUBSTR(lcBuf,lnI,1) lnLine = 1 DO WHILE lcSamp<>"." AND lnI<1000 && "\0" IF lcSamp=CHR(13) lnLine = lnLine + 1 ENDIF IF lnLine > 1 IF (lcSamp=CHR(9) OR lcSamp=" ") && *p == "\t" || *p == " ") DIMENSION THIS.aSizeOfMsg[ ALEN(THIS.aSizeOfMsg)+1 ] THIS.aSizeOfMsg[ALEN(THIS.aSizeOfMsg)] = VAL(SUBSTR(lcBuf,lnI)) *? " Email #"+TRAN(ALEN(THIS.aSizeOfMsg)-1)+" size="+TRAN(THIS.aSizeOfMsg[alen(THIS.aSizeOfMsg)]) ENDIF ENDIF lnI = lnI + 1 lcSamp = SUBSTR(lcBuf,lnI,1) ENDDO THIS.nNumberOfEmails = ALEN(THIS.aSizeOfMsg)-1 CASE ResponseType = RETR_CHECK IF lcBuf="-ERR" THIS.cErrorMessage = "Error occurred during RETR" RETURN .F. ELSE THIS.cMsgContents = lcBuf + THIS.ReadData() ENDIF ENDCASE RETURN .T. *--------------------------------------------------- FUNCTION ReadData LOCAL lcMsgIn, lnTime, lcBuffer lnTime = SECONDS() DO WHILE THIS.oSocket.BytesReceived = 0 * ?"Waiting to Receive data..." INKEY(0.2) *Sleep(100) IF This.Elapsed(SECONDS(), lnTime) > This.nConnectTimeOut * ?"Timed Out" RETURN "" ENDIF DOEVENTS ENDDO lcBuffer = REPL(CHR(0),10000) && chr(0),10000) * ?"(in) Bytes Received: "+tran(THIS.oSocket.BytesReceived) * THIS.oSocket.Receive(lcBuf, len(lcBuf)) DOEVENTS lcMsgIn = "" IF THIS.oSocket.State = 7 DO WHILE THIS.oSocket.BytesReceived > 0 THIS.oSocket.GETDATA(@lcBuffer,vbString) lcMsgIn = lcMsgIn + lcBuffer INKEY(0.1) ENDDO ENDIF * lcMsgIn = LEFT( lcMsgIn, AT(chr(0),lcMsgIn) ) * ?"(in) Data Read: ("+tran(len(lcMsgIn))+","+tran(THIS.oSocket.BytesReceived)+" bytes) "+lcMsgIn RETURN lcMsgIn *--------------------------------------------------- PROCEDURE DESTROY DODEFAULT() IF THIS.lConnected THIS.Disconnect() ENDIF THIS.oWsform = NULL *--------------------------------------------------- FUNCTION Elapsed LPARAMETERS tnENdSeconds, tnStartSeconds LOCAL lnElapsed lnElapsed = tnENdSeconds - tnStartSeconds DO WHILE (lnElapsed < 0) lnElapsed = lnElapsed + 86400 && 1day = 24h*60m*60s ENDDO RETURN lnElapsed ENDDEFINE
Sample code that shows how to use class to retrieve email
This is sample code. Add error handling and adjust to your requirements as necessary. |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 LOCAL loMail lcCrLf = CHR(13) + CHR(10) loMail = NEWOBJECT("pop3mail", "pop3EmailClass.fxp") * Change configuration data to your POP3 server loMail.cServerName = "mail.whatever.com" loMail.cUser = "john" loMail.cPassword = "secret" lcTempPath = ADDBS(SYS(2023)) lcFilePrefix = "Mail" lcFileSuffix = SYS(2015) lcFileExt = ".txt" IF NOT loMail.Connect() ? "Error Connecting:" + loMail.cErrorMessage RETURN .F. ENDIF IF NOT loMail.Statistics() ? "STAT failed" RETURN .F. ENDIF IF loMail.nNumberOfEmails = 0 ? "No Emails to download" RETURN .T. ENDIF IF loMail.nNumberOfEmails > 1 ? "Total # of Emails: " + TRANSFORM(loMail.nNumberOfEmails) ? "Total Size of Emails: " + TRANSFORM(loMail.nTotalMailSize) ENDIF FOR lnI = 1 TO loMail.nNumberOfEmails IF loMail.nNumberOfEmails > 1 ? "Downloading Email # " + TRANSFORM(lnI) ENDIF = loMail.Retrieve(lnI) lcEmail = loMail.cMsgContents IF lcEmail = "+OK" AND RIGHT(lcEmail, 5) = lcCrLf + "." + lcCrLf lnPos = AT(lcCrLf, lcEmail) lcEmail = SUBSTR(lcEmail, lnPos+2, LEN(lcEmail) - (lnPos+6)) lcTempFileName = lcTempPath + lcFilePrefix + TRANSFORM(lnI) + lcFileSuffix + lcFileExt * Write email to file STRTOFILE(lcEmail + lcCrLf, lcTempFileName ) * Process email here *... * Delete email from server *IF llDeleteMail AND NOT loMail.Delete(lnI) * ? "Couldn't delete email.") *ENDIF ELSE ? "Email " + TRANSFORM(lnI) + + " wasn't downloaded correctly from POP3." ENDIF ENDFOR loMail = NULL
Comments
pop3Email Class and Gmail
I believe it passed thru the .Connect() functionality but Returned "STAT FAILED" on .Statistics()
Could you help!
Regards
Stan
RE: pop3Email Class and Gmail
receive mail from gmail
Warm regards,
mk.
save file attachments
I want to save file attachments by Winstock !
Help me please
VanXeNguyen
Not working at all
Why those code not working for Gmail or Hotmail? what the ISP should I used?
Winsock not working with SSL mail server
Winsock not working with SSL mail server. The are no option for this so Winsock can not connect directly to Mail server with SSL option. You should simulate the full security part by yourself... :-( Better to use some other way.