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メール受信サンプル https://www.activebasic.com/forum/viewtopic.php?t=278 |
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作成者: | situmon [ 2005年8月21日(日) 14:13 ] |
記事の件名: | メール受信サンプル |
前に投稿した送信サンプルに続き受信のサンプルです。 ソースは送信サンプルを受信用に変えただけなので汚いです。 POP3のみ対応しています。 なお、メールの消去コマンドは注釈で消してあります。 使う場合ははずせば動きます。 (ActiveBasic最新版で動くように修正しました 2006/4/15 11:01) コード: '関数の定義ここから Const WSADESCRIPTION_LEN = 256 Const WSASYS_STATUS_LEN = 128 Const SOCKET_ERROR = -1 Const INVALID_SOCKET = -1 ' Winsockの実装の詳細を定義する構造体の宣言 Type WSAData wVersion As Integer wHighVersion As Integer szDescription(WSADESCRIPTION_LEN) As Byte szSystemStatus(WSASYS_STATUS_LEN) As Byte iMaxSockets As Integer iMaxUdpDg As Integer lpVendorInfo As Long End Type ' ソケットのアドレスを保存する構造体 Type in_addr S_addr As Long End Type ' ソケットの情報を保存する構造体 Type sockaddr_in sin_family As Integer sin_port As Word sin_addr As in_addr sin_zero(7) As Byte End Type 'ネットワーク上にある既知の、接続するソケットのアドレスを受け取る構造体 Type sockaddr sa_family As Word sa_data[13] As Byte End Type ' ホストの情報を保存する構造体 Type hostent h_name As Long h_aliases As Long h_addrtype As Integer h_length As Integer h_addr_list As Long End Type ' アドレスファミリーを示す定数の宣言 Const AF_UNSPEC = 0 Const AF_UNIX = 1 Const AF_INET = 2 Const AF_IMPLINK = 3 Const AF_PUP = 4 Const AF_CHAOS = 5 Const AF_NS = 6 Const AF_IPX = AF_NS Const AF_ISO = 7 Const AF_OSI = AF_ISO Const AF_ECMA = 8 Const AF_DATAKIT = 9 Const AF_CCITT = 10 Const AF_SNA = 11 Const AF_DECnet = 12 Const AF_DLI = 13 Const AF_LAT = 14 Const AF_HYLINK = 15 Const AF_APPLETALK = 16 Const AF_NETBIOS = 17 Const AF_VOICEVIEW = 18 Const AF_FIREFOX = 19 Const AF_UNKNOWN1 = 20 Const AF_BAN = 21 Const AF_ATM = 22 Const AF_INET6 = 23 Const AF_CLUSTER = 24 Const AF_12844 = 25 Const AF_MAX = 26 ' ソケットの種類を示す定数の宣言 Const SOCK_STREAM = 1 Const SOCK_DGRAM = 2 Const SOCK_RAW = 3 Const SOCK_RDM = 4 Const SOCK_SEQPACKET = 5 ' ローカルのアドレスのどれかを使用することを示す定数の宣言 Const INADDR_ANY = &H0 'ソケット関数 Declare Function accept Lib "wsock32.dll" (ByVal s As Long,ByRef addr As sockaddr_in,ByVal addrlen As Long) As Long Declare Function WSAAccept Lib "ws2_32.dll" (ByVal s As Long,addr As Long,addrlen As Long,ByVal lpfnCondition As Long,ByVal dwCallbackData As Long) As Long Declare Function bind Lib "wsock32.dll" (ByVal s As Long,ByRef sName As sockaddr_in, ByVal namelen As Long) As Long Declare Function closesocket Lib "wsock32.dll" (ByVal s As Long) As Long Declare Function connect Lib "wsock32.dll" (ByVal s As Long,ByRef sName As sockaddr_in, ByVal namelen As Long) As Long Declare Function ioctlsocket Lib "wsock32.dll" (ByVal s As Long, ByVal cmd As Long, argp As Long) As Long Declare Function listen Lib "wsock32.dll" (ByVal s As Long, ByVal backlog As Long) As Long Declare Function recv Lib "wsock32.dll" (ByVal s As Long, ByVal buf As BytePtr, ByVal lngLen As Long, ByVal flags As Long) As Long Declare Function recvfrom Lib "wsock32.dll" (ByVal s As Long, buf As BytePtr, ByVal lngLen As Long, ByVal flags As Long,ByRef from As sockaddr_in, fromlen As Long) As Long Declare Function send Lib "wsock32.dll" (ByVal s As Long, buf As BytePtr, ByVal lngLenlen As Long, ByVal flags As Long) As Long Declare Function sendto Lib "wsock32.dll" (ByVal s As Long, buf As BytePtr, ByVal lngLen As Long, ByVal flags As Long,ByRef sTo As sockaddr_in, ByVal tolen As Long) As Long Declare Function setsockopt Lib "wsock32.dll" (ByVal s As Long, ByVal level As Long, ByVal optname As Long, optval As String, ByVal optlen As Long) As Long Declare Function shutdown Lib "wsock32.dll" (ByVal s As Long, ByVal how As Long) As Long Declare Function socket Lib "wsock32.dll" (ByVal af As Long, ByVal lngType As Long, ByVal protocol As Long) As Long Declare Function recvb Lib "wsock32.dll" Alias "recv" (ByVal s As Long, buf As VoidPtr, ByVal lngLen As Long, ByVal flags As Long) As Long Declare Function sendb Lib "wsock32.dll" Alias "send" (ByVal s As Long, buf As VoidPtr, ByVal lngLen As Long, ByVal flags As Long) As Long 'バイトオーダー変換 Declare Function htonl Lib "wsock32.dll" (ByVal hostlong As Long) As Long Declare Function htons Lib "wsock32.dll" (ByVal hostshort As Long) As Word Declare Function ntohl Lib "wsock32.dll" (ByVal netlong As Long) As Long Declare Function ntohs Lib "wsock32.dll" (ByVal netshort As Long) As Word 'アドレス変換 Declare Function inet_addr Lib "wsock32.dll" (ByVal cp As String) As Long Declare Function inet_ntoa Lib "wsock32.dll" (ByVal lngIn As Long) As Long 'データベース関数 Declare Function gethostbyaddr Lib "wsock32.dll" (addr As Long, ByVal lngLen As Long, ByVal lngType As Long) As Long Declare Function gethostbyname Lib "wsock32.dll" (ByVal strName As String) As Long Declare Function gethostname Lib "wsock32.dll" (ByVal strName As String, ByVal namelen As Long) As Long Declare Function getpeername Lib "wsock32.dll" (ByVal s As Long,ByRef sName As sockaddr_in, namelen As Long) As Long Declare Function getprotobyname Lib "wsock32.dll" (ByVal strName As String) As Long Declare Function getprotobynumber Lib "wsock32.dll" (ByVal lngNumber As Long) As Long Declare Function getservbyname Lib "wsock32.dll" (ByVal strName As String, ByVal proto As String) As Long Declare Function getservbyport Lib "wsock32.dll" (ByVal Port As Long, ByVal proto As String) As Long Declare Function getsockname Lib "wsock32.dll" (ByVal s As Long,ByRef sName As sockaddr_in, namelen As Long) As Long Declare Function getsockopt Lib "wsock32.dll" (ByVal s As Long, ByVal level As Long, ByVal optname As Long, optval As String, optlen As Long) As Long '拡張機能 Declare Function WSAStartup Lib "wsock32.dll" (ByVal wVersionRequested As Long,ByRef lpWSAData As WSAData) As Long Declare Function WSACleanup Lib "wsock32.dll" () As Long Declare Function WSAAsyncGetServByName Lib "wsock32.dll" (ByVal hWnd As Long, ByVal wMsg As Long, ByVal strName As String, ByVal proto As String, buf As String, ByVal buflen As Long) As Long Declare Function WSAAsyncGetServByPort Lib "wsock32.dll" (ByVal hWnd As Long, ByVal wMsg As Long, ByVal Port As Long, ByVal proto As String, buf As String, ByVal buflen As Long) As Long Declare Function WSAAsyncGetProtoByName Lib "wsock32.dll" (ByVal hWnd As Long, ByVal wMsg As Long, ByVal protoname As String, buf As String, ByVal buflen As Long) As Long Declare Function WSAAsyncGetProtoByNumber Lib "wsock32.dll" (ByVal hWnd As Long, ByVal wMsg As Long, ByVal number As Long, buf As String, ByVal buflen As Long) As Long Declare Function WSAAsyncGetHostByName Lib "wsock32.dll" (ByVal hWnd As Long, ByVal wMsg As Long, ByVal hostname As String, buf As String, ByVal buflen As Long) As Long Declare Function WSAAsyncGetHostByAddr Lib "wsock32.dll" (ByVal hWnd As Long, ByVal wMsg As Long, lngAddr As Long, ByVal lngLen As Long, ByVal lngType As Long, buf As String, ByVal buflen As Long) As Long Declare Function WSAAsyncSelect Lib "wsock32.dll" (ByVal s As Long, ByVal hWnd As Long, ByVal wMsg As Long, ByVal lngEvent As Long) As Long Declare Function WSACancelAsyncRequest Lib "wsock32.dll" (ByVal hAsyncTaskHandle As Long) As Long Declare Function WSACancelBlockingCall Lib "wsock32.dll" () As Long Declare Function WSAGetLastError Lib "wsock32.dll" () As Long Declare Function WSAIsBlocking Lib "wsock32.dll" () As Long Declare Sub WSASetLastError Lib "wsock32.dll" (ByVal lngErr As Long) Declare Function WSASetBlockingHook Lib "wsock32.dll" (ByVal lngFunc As Long) As Long Declare Function WSAUnhookBlockingHook Lib "wsock32.dll" () As Long 'ここまで '自作関数の定義ここから Function GIPADD(ByVal ipstr As String) As Long Dim lhost As Long Dim uhost As hostent Dim lhostbAdd As Long Dim lhostAdd As Long Dim SockAdd As sockaddr_in Dim HADD As Long lhost=gethostbyname(ipstr) If lhost <> 0 Then memcpy(VarPtr(uhost),lhost,Len(uhost)) With uhost memcpy(VarPtr(lhostbAdd),.h_addr_list,Len(lhostbAdd)) memcpy(VarPtr(lhostAdd),lhostbAdd,.h_length) End With GIPADD=lhostAdd Else GIPADD=0 End If End Function 'ここまで 'ここからがプログラム本体です #N88BASIC Dim WDATA As WSAData Dim APILONG As Long Dim Sock As Long Dim BufLen As Long Dim SBUF As String Dim RBUF As String Dim WBUF As String Dim Port As Word Dim HADD As Long Dim SockAdd As sockaddr_in Dim WarkBUF As String Dim HOSTBUF As String Dim POPBUF As String Dim POPUSER As String Dim POPPASS As String Dim RES As Byte Dim COMNB As Byte Dim MailCount As String Dim MailBuf As String Dim ListBuf As String RES=0 COMNB=0 'DLLの起動 APILONG=WSAStartup(MAKEWORD(1,1),WDATA) Input "POPサーバのアドレスを入力してください。";POPBUF Input "POPサーバのユーサー名を入力してください。";POPUSER Input "POPサーバのパスワードを入力してください。";POPPASS 'ソケットの作成 Sock=socket(AF_INET,SOCK_STREAM,0) HADD=GIPADD(POPBUF) With SockAdd .sin_family=AF_INET .sin_port=htons(110) .sin_addr.S_addr=HADD End With '3ハンドシェイクによるコネクションの確立 APILONG=connect(Sock,SockAdd,Len(SockAdd)) If Not(APILONG=0) Then MsgBox 0,"コネクトに失敗しました。","MAILC",MB_OK+MB_TOPMOST closesocket(Sock) WSACleanup() End End If 'レスポンス受信 RBUF=String$(256,Chr$(0)) APILONG=recv(Sock,StrPtr(RBUF),Len(RBUF),0) If APILONG<1 Then MsgBox 0,"コネクションが切断しました","MAILC",MB_OK+MB_TOPMOST closesocket(Sock) WSACleanup() End End If RES=RES+1 MsgBox 0,RBUF,"レスポンス-"+Str$(RES)+"("+Str$(APILONG)+"Byte)",MB_OK+MB_TOPMOST 'コマンド送信 SBUF="USER "+POPUSER+Ex"\r\n" BufLen=Len(SBUF) COMNB=COMNB+1 MsgBox 0,SBUF,"コマンド -"+Str$(RES),MB_OK+MB_TOPMOST APILONG=send(Sock,StrPtr(SBUF),BufLen,0) 'レスポンス受信 RBUF=String$(256,Chr$(0)) APILONG=recv(Sock,StrPtr(RBUF),Len(RBUF),0) If APILONG<1 Then MsgBox 0,"コネクションが切断しました","MAILC",MB_OK+MB_TOPMOST closesocket(Sock) WSACleanup() End End If RES=RES+1 MsgBox 0,RBUF,"レスポンス-"+Str$(RES)+"("+Str$(APILONG)+"Byte)",MB_OK+MB_TOPMOST 'コマンド送信 SBUF="PASS "+POPPASS+Ex"\r\n" BufLen=Len(SBUF) COMNB=COMNB+1 MsgBox 0,SBUF,"コマンド -"+Str$(RES),MB_OK+MB_TOPMOST APILONG=send(Sock,StrPtr(SBUF),BufLen,0) 'レスポンス受信 RBUF=String$(256,Chr$(0)) APILONG=recv(Sock,StrPtr(RBUF),Len(RBUF),0) If APILONG<1 Then MsgBox 0,"コネクションが切断しました","MAILC",MB_OK+MB_TOPMOST closesocket(Sock) WSACleanup() End End If RES=RES+1 MsgBox 0,RBUF,"レスポンス-"+Str$(RES)+"("+Str$(APILONG)+"Byte)",MB_OK+MB_TOPMOST 'コマンド送信(メールボックスの状態確認) SBUF="STAT"+Ex"\r\n" BufLen=Len(SBUF) COMNB=COMNB+1 MsgBox 0,SBUF,"コマンド -"+Str$(RES),MB_OK+MB_TOPMOST APILONG=send(Sock,StrPtr(SBUF),BufLen,0) 'レスポンス受信 RBUF=String$(256,Chr$(0)) APILONG=recv(Sock,StrPtr(RBUF),Len(RBUF),0) If APILONG<1 Then MsgBox 0,"コネクションが切断しました","MAILC",MB_OK+MB_TOPMOST closesocket(Sock) WSACleanup() End End If RES=RES+1 MsgBox 0,RBUF,"レスポンス-"+Str$(RES)+"("+Str$(APILONG)+"Byte)",MB_OK+MB_TOPMOST MailCount=Right$(RBUF,Len(RBUF)-4) MailCount=Left$(MailCount,1) If Val(MailCount)>0 Then 'コマンド送信(メールのリスト取得) SBUF="LIST"+Ex"\r\n" BufLen=Len(SBUF) COMNB=COMNB+1 MsgBox 0,SBUF,"コマンド -"+Str$(RES),MB_OK+MB_TOPMOST APILONG=send(Sock,StrPtr(SBUF),BufLen,0) 'レスポンス受信 RBUF="" While(Not(ListBuf=".") And Not(APILONG<1)) ListBuf=String$(1,Chr$(0)) APILONG=recv(Sock,StrPtr(ListBuf),Len(ListBuf),0) RBUF=RBUF+ListBuf WEnd If APILONG<1 Then MsgBox 0,"コネクションが切断しました","MAILC",MB_OK+MB_TOPMOST closesocket(Sock) WSACleanup() End End If RES=RES+1 MsgBox 0,RBUF,"レスポンス-"+Str$(RES)+"("+Str$(APILONG)+"Byte)",MB_OK+MB_TOPMOST 'コマンド送信(メールデータの取得) SBUF="RETR 1"+Ex"\r\n" BufLen=Len(SBUF) COMNB=COMNB+1 MsgBox 0,SBUF,"コマンド -"+Str$(RES),MB_OK+MB_TOPMOST APILONG=send(Sock,StrPtr(SBUF),BufLen,0) 'レスポンス受信 RBUF="" While(Not(Right$(RBUF,5)=Ex"\r\n.\r\n") And Not(APILONG<1)) MailBuf=String$(255,Chr$(0)) APILONG=recv(Sock,StrPtr(MailBuf),Len(MailBuf),0) RBUF=RBUF+Left$(MailBuf,lstrlen(MailBuf)) WEnd If APILONG<1 Then MsgBox 0,"コネクションが切断しました","MAILC",MB_OK+MB_TOPMOST closesocket(Sock) WSACleanup() End End If RES=RES+1 MsgBox 0,RBUF,"レスポンス-"+Str$(RES)+"("+Str$(APILONG)+"Byte)1通目のメッセージ",MB_OK+MB_TOPMOST 'コマンド送信(メールの消去) ' SBUF="DELE 1"+Ex"\r\n" ' BufLen=Len(SBUF) ' COMNB=COMNB+1 ' MsgBox 0,SBUF,"コマンド -"+Str$(RES),MB_OK+MB_TOPMOST ' APILONG=send(Sock,StrPtr(SBUF),BufLen,0) 'レスポンス受信 ' RBUF=String$(256,Chr$(0)) ' APILONG=recv(Sock,StrPtr(RBUF),Len(RBUF),0) ' If APILONG<1 Then ' MsgBox 0,"コネクションが切断しました","MAILC",MB_OK+MB_TOPMOST ' closesocket(Sock) ' WSACleanup() ' End ' End If ' RES=RES+1 ' MsgBox 0,RBUF,"レスポンス-"+Str$(RES)+"("+Str$(APILONG)+"Byte)",MB_OK+MB_TOPMOST Else MsgBox 0,"メッセージが無いためコネクションを切断します。","POPC",MB_OK+MB_TOPMOST End If 'コマンド送信 SBUF="QUIT"+Ex"\r\n" BufLen=Len(SBUF) COMNB=COMNB+1 MsgBox 0,SBUF,"コマンド -"+Str$(RES),MB_OK+MB_TOPMOST APILONG=send(Sock,StrPtr(SBUF),BufLen,0) 'レスポンス受信 RBUF=String$(256,Chr$(0)) APILONG=recv(Sock,StrPtr(RBUF),Len(RBUF),0) If APILONG<1 Then MsgBox 0,"コネクションが切断しました","MAILC",MB_OK+MB_TOPMOST closesocket(Sock) WSACleanup() End End If RES=RES+1 MsgBox 0,RBUF,"レスポンス-"+Str$(RES)+"("+Str$(APILONG)+"Byte)",MB_OK+MB_TOPMOST 'ソケットのクローズ closesocket(Sock) WSACleanup() End |
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