417 lines
9.1 KiB
C
417 lines
9.1 KiB
C
/*
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Copyright 2001-2018 John Wiseman G8BPQ
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This file is part of LinBPQ/BPQ32.
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LinBPQ/BPQ32 is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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LinBPQ/BPQ32 is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with LinBPQ/BPQ32. If not, see http://www.gnu.org/licenses
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*/
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// Mail and Chat Server for BPQ32 Packet Switch
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//
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// MBL-Style Forwarding Routines
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#include "bpqmail.h"
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void SendMessageReadEvent(char * call, struct MsgInfo * Msg);
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VOID ProcessMBLLine(CIRCUIT * conn, struct UserInfo * user, UCHAR* Buffer, int len)
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{
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Buffer[len] = 0;
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// Winpack can send a second SID to switch to upload mode
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if (Buffer[0] == '[' && Buffer[len-2] == ']') // SID
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{
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if (user->flags & (F_PMS))
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{
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Parse_SID(conn, &Buffer[1], len-4);
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if (conn->BBSFlags & FBBForwarding)
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{
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conn->FBBIndex = 0; // ready for first block;
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conn->FBBChecksum = 0;
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memset(&conn->FBBHeaders[0], 0, 5 * sizeof(struct FBBHeaderLine));
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}
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else
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FBBputs(conn, ">\r");
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}
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return;
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}
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if (Buffer[0] == 6 && Buffer[1] == 5)
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{
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// ?? Sally send these after a failed tranfer
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memmove(Buffer, &Buffer[2], len);
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len-=2;
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}
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if (_memicmp(Buffer, "F< ", 3) == 0)
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{
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// FBB Compressed request from system using UI Messages
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int Number = atoi(&Buffer[3]);
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struct MsgInfo * Msg = FindMessageByNumber(Number);
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char ErrMsg[80];
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int ErrLen;
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if (Msg == 0)
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{
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ErrLen = sprintf(&ErrMsg[2], "Msg $%d does not exist!\r>", Number);
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ErrMsg[0] = 0x18;
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ErrMsg[1] = ErrLen;
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BBSputs(conn, ErrMsg);
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FBBputs(conn, ">\r");
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return;
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}
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Msg = FindMessage(user->Call, Number, conn->sysop);
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if (Msg)
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{
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conn->BBSFlags |= FBBCompressed; // Needs compression
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SendCompressed(conn, Msg);
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FBBputs(conn, ">\r");
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Msg->status = 'Y'; // Mark as read
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SaveMessageDatabase();
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SendMessageReadEvent(user->Call, Msg);
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}
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else
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{
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ErrLen = sprintf(&ErrMsg[2], "Msg $%d not available to you!\r>", Number);
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ErrMsg[0] = 0x18;
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ErrMsg[1] = ErrLen;
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BBSputs(conn, ErrMsg);
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FBBputs(conn, ">\r");
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}
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return;
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}
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if (Buffer[0] == 'S') //Send
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{
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// SB WANT @ ALLCAN < N6ZFJ $4567_N0ARY
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char * Cmd;
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char * To = NULL;
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char * From = NULL;
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char * BID = NULL;
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char * ATBBS = NULL;
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char * ptr, * Context;
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char seps[] = " \t\r";
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Cmd = strtok_s(Buffer, seps, &Context);
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if (Cmd[1] == 0) Cmd[1] = 'P';
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if (RefuseBulls && Cmd[1] == 'B')
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{
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nodeprintfEx(conn, "NO - BULLS NOT ACCEPTED\r");
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if (conn->BBSFlags & OUTWARDCONNECT)
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nodeprintfEx(conn, "F>\r"); // if Outward connect must be reverse forward
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else
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nodeprintfEx(conn, ">\r");
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return;
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}
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To = strtok_s(NULL, seps, &Context);
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ptr = strtok_s(NULL, seps, &Context);
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while (ptr)
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{
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if (strcmp(ptr, "@") == 0)
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{
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ATBBS = _strupr(strtok_s(NULL, seps, &Context));
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}
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else if(strcmp(ptr, "<") == 0)
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{
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From = strtok_s(NULL, seps, &Context);
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}
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else if (ptr[0] == '$')
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BID = &ptr[1];
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else
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{
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nodeprintfEx(conn, "*** Error: Invalid Format\r");
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return;
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}
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ptr = strtok_s(NULL, seps, &Context);
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}
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if (!From)
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{
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nodeprintfEx(conn, "*** Error: Invalid Format\r");
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return;
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}
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if (BID && LookupTempBID(BID))
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{
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// Being received from another BBS
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nodeprintfEx(conn, "NO - BID\r");
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if (conn->BBSFlags & OUTWARDCONNECT)
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nodeprintfEx(conn, "F>\r"); // if Outward connect must be reverse forward
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else
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nodeprintfEx(conn, ">\r");
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return;
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}
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CreateMessage(conn, From, To, ATBBS, toupper(Cmd[1]), BID, NULL);
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return;
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}
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if (Buffer[0] == 'N') // Not wanted
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{
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if (conn->FwdMsg)
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{
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// Zap the entry
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clear_fwd_bit(conn->FwdMsg->fbbs, user->BBSNumber);
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set_fwd_bit(conn->FwdMsg->forw, user->BBSNumber);
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conn->UserPointer->ForwardingInfo->MsgCount--;
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// Only mark as forwarded if sent to all BBSs that should have it
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if (memcmp(conn->FwdMsg->fbbs, zeros, NBMASK) == 0)
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{
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conn->FwdMsg->status = 'F'; // Mark as forwarded
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conn->FwdMsg->datechanged=time(NULL);
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}
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conn->FwdMsg->Locked = 0; // Unlock
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}
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return;
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}
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if (Buffer[0] == 'O') // Need it (OK)
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{
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struct tm * tm;
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time_t now;
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char * MsgBytes;
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char * MsgPtr; // In case updated for B2
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int MsgLen;
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if (!conn->FwdMsg)
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return;
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nodeprintfEx(conn, "%s\r", conn->FwdMsg->title);
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MsgBytes = ReadMessageFile(conn->FwdMsg->number);
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if (MsgBytes == 0)
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{
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MsgBytes = _strdup("Message file not found\r");
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conn->FwdMsg->length = (int)strlen(MsgBytes);
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}
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MsgPtr = MsgBytes;
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MsgLen = conn->FwdMsg->length;
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// If a B2 Message, remove B2 Header
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if (conn->FwdMsg->B2Flags & B2Msg)
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{
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// Remove all B2 Headers, and all but the first part.
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MsgPtr = strstr(MsgBytes, "Body:");
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if (MsgPtr)
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{
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MsgLen = atoi(&MsgPtr[5]);
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MsgPtr= strstr(MsgBytes, "\r\n\r\n"); // Blank Line after headers
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if (MsgPtr)
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MsgPtr +=4;
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else
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MsgPtr = MsgBytes;
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}
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else
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MsgPtr = MsgBytes;
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}
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MsgLen = RemoveLF(MsgPtr, MsgLen);
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now = time(NULL);
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tm = gmtime(&now);
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nodeprintf(conn, "R:%02d%02d%02d/%02d%02dZ %d@%s.%s %s\r",
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tm->tm_year-100, tm->tm_mon+1, tm->tm_mday, tm->tm_hour, tm->tm_min,
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conn->FwdMsg->number, BBSName, HRoute, RlineVer);
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if (memcmp(MsgPtr, "R:", 2) != 0) // No R line, so must be our message
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BBSputs(conn, "\r");
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QueueMsg(conn, MsgPtr, MsgLen);
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if (user->ForwardingInfo->SendCTRLZ)
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nodeprintf(conn, "\rx1a");
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else
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nodeprintf(conn, "\r/ex\r");
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free(MsgBytes);
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conn->FBBMsgsSent = TRUE;
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return;
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}
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if (_stricmp(Buffer, "F>\r") == 0)
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{
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// Reverse forward request
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// If we have just sent a nessage, Flag it as sent
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if (conn->FBBMsgsSent)
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{
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conn->FBBMsgsSent = FALSE;
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clear_fwd_bit(conn->FwdMsg->fbbs, user->BBSNumber);
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set_fwd_bit(conn->FwdMsg->forw, user->BBSNumber);
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// Only mark as forwarded if sent to all BBSs that should have it
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if (memcmp(conn->FwdMsg->fbbs, zeros, NBMASK) == 0)
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{
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conn->FwdMsg->status = 'F'; // Mark as forwarded
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conn->FwdMsg->datechanged=time(NULL);
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}
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conn->FwdMsg->Locked = 0; // Unlock
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conn->UserPointer->ForwardingInfo->MsgCount--;
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}
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// Send Message or Disconnect
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if (FindMessagestoForward(conn))
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{
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struct MsgInfo * Msg;
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// Send S line and wait for response - SB WANT @ USA < W8AAA $1029_N0XYZ
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Msg = conn->FwdMsg;
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if (conn->BBSFlags & MFJMODE)
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{
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// No @ BBS to MFJ TNC
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nodeprintfEx(conn, "S%c %s < %s $%s\r", Msg->type, Msg->to, Msg->from, Msg->bid);
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}
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else
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nodeprintfEx(conn, "S%c %s @ %s < %s $%s\r", Msg->type, Msg->to,
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(Msg->via[0]) ? Msg->via : conn->UserPointer->Call,
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Msg->from, Msg->bid);
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conn->BBSFlags |= MBLFORWARDING;
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return;
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}
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BBSputs(conn, "*** DONE\r");
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Flush(conn);
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Sleep(400);
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Disconnect(conn->BPQStream);
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return;
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}
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if (Buffer[len-2] == '>')
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{
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// If we have just sent a message, Flag it as sent
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if (conn->FBBMsgsSent)
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{
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conn->FBBMsgsSent = FALSE;
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clear_fwd_bit(conn->FwdMsg->fbbs, user->BBSNumber);
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set_fwd_bit(conn->FwdMsg->forw, user->BBSNumber);
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// Only mark as forwarded if sent to all BBSs that should have it
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if (memcmp(conn->FwdMsg->fbbs, zeros, NBMASK) == 0)
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{
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conn->FwdMsg->status = 'F'; // Mark as forwarded
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conn->FwdMsg->datechanged=time(NULL);
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}
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conn->UserPointer->ForwardingInfo->MsgCount--;
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}
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// Send Message or request reverse using MBL-style forwarding
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if (FindMessagestoForward(conn))
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{
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struct MsgInfo * Msg;
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// Send S line and wait for response - SB WANT @ USA < W8AAA $1029_N0XYZ
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Msg = conn->FwdMsg;
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nodeprintfEx(conn, "S%c %s @ %s < %s $%s\r", Msg->type, Msg->to,
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(Msg->via[0]) ? Msg->via : conn->UserPointer->Call,
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Msg->from, Msg->bid);
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return;
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}
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else
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{
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FBBputs(conn, "F>\r");
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return;
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}
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}
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// Winpack after doing ocmpressed downloads sends KM or B
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if (_stricmp(Buffer, "*** DONE\r") == 0 || _stricmp(Buffer, "*** What?\r") == 0
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|| _stricmp(Buffer, "B\r") == 0)
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{
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Disconnect(conn->BPQStream);
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return;
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}
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if (_stricmp(Buffer, "KM\r") == 0)
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{
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int i;
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struct MsgInfo * Msg;
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for (i = NumberofMessages; i > 0; i--)
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{
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Msg = MsgHddrPtr[i];
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if ((_stricmp(Msg->to, user->Call) == 0))
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{
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if (Msg->type == 'P' && Msg->status == 'Y')
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{
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FlagAsKilled(Msg, TRUE);
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nodeprintfEx(conn, "Message #%d Killed\r", Msg->number);
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}
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}
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}
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SendPrompt(conn, user);
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return;
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}
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}
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