/***************************************************************************** * * $Id$ * Purpose ...............: MBSE BBS Mail Gate * ***************************************************************************** * Copyright (C) 1997-2007 * * Michiel Broek FIDO: 2:280/2802 * Beekmansbos 10 * 1971 BV IJmuiden * the Netherlands * * This file is part of MBSE BBS. * * This BBS is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2, or (at your option) any * later version. * * MBSE BBS 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 * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with MBSE BBS; see the file COPYING. If not, write to the Free * Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. *****************************************************************************/ /* Base on E.C. Crosser's ifmail. * * ### Modified by P.Saratxaga on 19 Sep 1995 ### * - Added X-FTN-From and X-FTN-To support * - added code by T.Tanaka, dated 13 Mar 1995, to put the freename in the ftn * header, instead of the userid, when the address is fido parseable * - modified ^aREPLY: code, to look in In-Reply-To: * - support to decode MSGID from fidogate "Message-ID: " * - suport for X-Apparently-To: (generated by the french fido->usenet gate) * - added don't regate code by Wim Van Sebroeck * - corriged a bug when Organization: has only blanks */ #include "../config.h" #include "../lib/mbselib.h" #include "../lib/users.h" #include "../lib/mbsedb.h" #include "atoul.h" #include "hash.h" #include "msgflags.h" #include "aliasdb.h" #include "mkftnhdr.h" #ifndef ULONG_MAX #define ULONG_MAX 4294967295 #endif char *replyaddr=NULL; char *ftnmsgidstyle=NULL; faddr *bestaka; int ftnmsgid(char *msgid, char **s, unsigned int *n, char *areaname) { char *buf, *l, *r, *p; unsigned int nid = 0L; faddr *tmp; static int ftnorigin = 0; Syslog('m', "Make ftn msgid from \"%s\"", MBSE_SS(msgid)); if (msgid == NULL) { *s = NULL; *n = 0L; return ftnorigin; } buf = malloc(strlen(msgid)+65); strcpy(buf, msgid); if ((l = strchr(buf,'<'))) l++; else l = buf; while (isspace(*l)) l++; if ((r = strchr(l,'>'))) *r = '\0'; r = l + strlen(l) - 1; while (isspace(*r) && (r > l)) (*r--)='\0'; if ((tmp = parsefaddr(l))) { if (tmp->name) { if (strspn(tmp->name,"0123456789") == strlen(tmp->name)) nid = atoul(tmp->name); else nid = ULONG_MAX; if (nid == ULONG_MAX) { hash_update_s(&nid, tmp->name); } else ftnorigin = 1; } else { hash_update_s(&nid,l); } *s = xstrcpy(ascfnode(tmp, 0x1f)); tidy_faddr(tmp); } else { if ((r=strchr(l,'@')) == NULL) { /* should never happen */ Syslog('!', "ftnmsgid: should never happen: %s", printable(l, 0)); *s = xstrcpy(l); hash_update_s(&nid,l); /* */ } else if (strncmp(l,"MSGID_",6) == 0) { *r = '\0'; r = strrchr(l+6,'_'); if (r) *r++ = '\0'; *s = xstrcpy(l+6); if (r) sscanf(r,"%x",&nid); ftnorigin = 1; /* */ } else if (strncmp(l,"NOMSGID_",8) == 0) { *s = NULL; *n = 0L; ftnorigin = 1; return ftnorigin; /* */ } else if (strncmp(l,"ftn_",4) == 0) { *r = '\0'; if ((r = strchr(l+4,'$')) || (r=strchr(l+4,'#'))) { if (*r=='$') *r='@'; if ((r=strchr(l+4,'.'))) *r=':'; if ((r=strchr(l+4,'.'))) *r='/'; } while ((r=strrchr(l+4,'_')) != strchr(l+4,'_')) *r='\0'; r=strchr(l+4,'_'); *r++='\0'; *s=xstrcpy(l+4); sscanf(r,"%x",&nid); ftnorigin=1; /* */ } else if (strncmp(l,"wgcid$",6) == 0) { *r='\0'; if ((r=strstr(l+6,"$g"))) { *r='\0'; *s=xstrcpy(l+6); *s=xstrcat(*s,(char *)":"); l=r+2; } if ((r=strstr(l,"$h"))) { *r++='\0'; *s=xstrcat(*s,l); *s=xstrcat(*s,(char *)"/"); l=r+2; } if ((r=strstr(l,"$i"))) { *r='\0'; *s=xstrcat(*s,l); *s=xstrcat(*s,(char *)"."); l=r+2; } if ((r=strstr(l,"$k"))) { *r='\0'; *s=xstrcat(*s,l); *s=xstrcat(*s,(char *)"@"); l=r+2; } if ((r=strstr(l,"$j"))) { *r='\0'; *s=xstrcat(*s,l); sscanf(r+2,"%x",&nid); } } else { *r='\0'; if ((p=strchr(l,'%'))) { *p='\0'; if (strspn(l,"0123456789") == strlen(l)) { *r='@'; r=p; } else *p='%'; } r++; if (strspn(l,"0123456789") == strlen(l)) nid = atoul(l); else nid = ULONG_MAX; if (nid == ULONG_MAX) hash_update_s(&nid,l); *s=xstrcpy(r); } } *n=nid; free(buf); return ftnorigin; } ftnmsg *mkftnhdr(rfcmsg *msg, int newsmode, faddr *recipient) { char *freename = NULL, *rfcfrom = NULL, *p, *q, *l, *r; char *fbuf = NULL, *ftnfrom=NULL; static ftnmsg *tmsg; int needreplyaddr = 1; faddr *tmp, *tmp2; tmsg=(ftnmsg *)malloc(sizeof(ftnmsg)); memset(tmsg, 0, sizeof(ftnmsg)); if (newsmode) { p = xstrcpy(hdr((char *)"Comment-To",msg)); if (p == NULL) p = xstrcpy(hdr((char *)"X-Comment-To",msg)); if (p == NULL) p = xstrcpy(hdr((char *)"X-FTN-To",msg)); if (p == NULL) p = xstrcpy(hdr((char *)"X-Fidonet-Comment-To",msg)); if (p == NULL) p = xstrcpy(hdr((char *)"X-Apparently-To",msg)); if (p == NULL) p = xstrcpy(hdr((char *)"To", msg)); /* 14-Aug-2001 MB */ if (p) { Syslog('m', "Getting `to' address from \"%s\"", MBSE_SS(p)); if ((tmsg->to = parsefaddr(p)) == NULL) tmsg->to = parsefaddr((char *)"All@p0.f0.n0.z0"); if ((l = strrchr(p,'<')) && (r = strchr(p,'>')) && (l < r)) { r = l; *r-- = '\0'; if ((l = strchr(p,'"')) && (r = strrchr(p,'"')) && (l < r)) { l++; *r-- = '\0'; } while (isspace(*r)) *r-- = '\0'; if (!l) l = p; while (isspace(*l)) l++; } else if ((l = strrchr(p,'(')) && (r = strchr(p,')')) && (l < r)) { *r-- = '\0'; while (isspace(*r)) *r-- = '\0'; l++; while (isspace(*l)) l++; } else { l = p; while (isspace(*l)) l++; r = p + strlen(p) -1; if (*r == '\n') *r-- = '\0'; while (isspace(*r)) *r-- = '\0'; } if (*l) { if (strlen(l) > MAXNAME) l[MAXNAME]='\0'; free(tmsg->to->name); tmsg->to->name=xstrcpy(l); } free(p); /* * It will become echomail, the destination FTN address must * be our address. 14-Aug-2001 MB. */ tmsg->to->zone = msgs.Aka.zone; tmsg->to->net = msgs.Aka.net; tmsg->to->node = msgs.Aka.node; tmsg->to->point = msgs.Aka.point; tmsg->to->domain = xstrcpy(msgs.Aka.domain); } else { /* * Filling a default To: address. */ tmsg->to = (faddr*)malloc(sizeof(faddr)); tmsg->to->name = xstrcpy((char *)"All"); tmsg->to->zone = msgs.Aka.zone; tmsg->to->net = msgs.Aka.net; tmsg->to->node = msgs.Aka.node; tmsg->to->point = msgs.Aka.point; tmsg->to->domain = xstrcpy(msgs.Aka.domain); } } else { if (recipient) { /* * In mbmail mode the recipient is valid and must be used * as the destination address. The To: field is probably * an RFC address an cannot be used to route the message. */ tmsg->to = (faddr *)malloc(sizeof(faddr)); tmsg->to->point = recipient->point; tmsg->to->node = recipient->node; tmsg->to->net = recipient->net; tmsg->to->zone = recipient->zone; tmsg->to->name = xstrcpy(recipient->name); if (tmsg->to->name && (strlen(tmsg->to->name) > MAXNAME)) tmsg->to->name[MAXNAME]='\0'; tmsg->to->domain = xstrcpy(recipient->domain); Syslog('m', "Recipient TO: %s", ascfnode(tmsg->to,0xff)); } else { p = xstrcpy(hdr((char *)"To",msg)); if (p == NULL) p = xstrcpy(hdr((char *)"X-Apparently-To",msg)); if (p) { if ((tmsg->to = parsefaddr(p)) == NULL) WriteError("Unparsable destination address"); else Syslog('m', "RFC parsed TO: %s",ascfnode(tmsg->to,0xff)); } } } /* else (newsmode) */ p = fbuf = xstrcpy(hdr((char *)"Reply-To", msg)); if (fbuf == NULL) p = fbuf = xstrcpy(hdr((char *)"From", msg)); if (fbuf == NULL) p = fbuf = xstrcpy(hdr((char *)"X-UUCP-From", msg)); if (p) { q = p; while (isspace(*q)) q++; fbuf = parserfcaddr(q).remainder; if (parserfcaddr(q).target) { fbuf = xstrcat(fbuf, (char *)"@"); fbuf = xstrcat(fbuf, parserfcaddr(q).target); } rfcfrom = fbuf; } if (p) free(p); p = NULL; if (!rfcfrom) rfcfrom = xstrcpy((char *)"postmaster"); p = fbuf = xstrcpy(hdr((char *)"From", msg)); if (fbuf == NULL) p = fbuf = xstrcpy(hdr((char *)"X-UUCP-From", msg)); if (p) { q = p; while (isspace(*q)) q++; if ((q) && (*q != '\0')) freename = parserfcaddr(q).comment; else freename = NULL; } else freename = xstrcpy((char *)"Unidentified User"); if (freename) { while (isspace(*freename)) freename++; } if (rfcfrom) { while (isspace(*rfcfrom)) rfcfrom++; p = rfcfrom + strlen(rfcfrom) -1; while ((isspace(*p)) || (*p == '\n')) *(p--)='\0'; } if ((freename) && (*freename != '\0')) { while (isspace(*freename)) freename++; p = freename + strlen(freename) -1; while ((isspace(*p)) || (*p == '\n')) *(p--)='\0'; if ((*freename == '\"') && (*(p=freename+strlen(freename)-1) == '\"')) { freename++; *p='\0'; } } // if (*freename == '\0') freename=rfcfrom; if ((!freename) || ((freename) && (*freename == '\0')) || (strcmp(freename,".")==0)) freename=rfcfrom; if (! newsmode) Syslog('+', "from: %s <%s>",freename,rfcfrom); needreplyaddr = 1; if ((tmsg->from=parsefaddr(rfcfrom)) == NULL) { if (freename && rfcfrom) if (!strchr(freename,'@') && !strchr(freename,'%') && strncasecmp(freename,rfcfrom,MAXNAME) && strncasecmp(freename,"uucp",4) && strncasecmp(freename,"usenet",6) && strncasecmp(freename,"news",4) && strncasecmp(freename,"super",5) && strncasecmp(freename,"admin",5) && strncasecmp(freename,"postmaster",10) && strncasecmp(freename,"sys",3)) needreplyaddr=registrate(freename,rfcfrom); } else { tmsg->ftnorigin = 1; tmsg->from->name = xstrcpy(freename); if (strlen(tmsg->from->name) > MAXNAME) tmsg->from->name[MAXNAME]='\0'; } if (replyaddr) { free(replyaddr); replyaddr=NULL; } if (needreplyaddr && (tmsg->from == NULL)) { replyaddr=xstrcpy(rfcfrom); } if (tmsg->from) Syslog('m', "From address was%s distinguished as ftn", tmsg->from ? "" : " not"); if (newsmode) { tmp2 = fido2faddr(msgs.Aka); bestaka = bestaka_s(tmp2); tidy_faddr(tmp2); } else bestaka = bestaka_s(tmsg->to); if ((tmsg->from == NULL) && (bestaka)) { if (CFG.dontregate) { p = xstrcpy(hdr((char *)"X-FTN-Sender",msg)); if (p == NULL) { if ((p = hdr((char *)"X-FTN-From",msg))) { tmp = parsefnode(p); p = xstrcpy(ascinode(tmp, 0xff)); tidy_faddr(tmp); } } if (p) { q = p; while (isspace(*q)) q++; ftnfrom = parserfcaddr(q).remainder; if (parserfcaddr(q).target) { ftnfrom = xstrcat(ftnfrom,(char *)"@"); ftnfrom = xstrcat(ftnfrom,parserfcaddr(q).target); } Syslog('m', "Ftn gateway: \"%s\"", ftnfrom); Syslog('+', "Ftn sender: %s",ftnfrom); if (ftnfrom) tmsg->from = parsefaddr(ftnfrom); if ((tmsg->from) && (!tmsg->from->name)) tmsg->from->name = xstrcpy(rfcfrom); } if (p) free(p); p = NULL; if (tmsg->from == NULL) { tmsg->from=(faddr *)malloc(sizeof(faddr)); tmsg->from->name=xstrcpy(freename); if (tmsg->from->name && (strlen(tmsg->from->name) > MAXNAME)) tmsg->from->name[MAXNAME]='\0'; tmsg->from->point=bestaka->point; tmsg->from->node=bestaka->node; tmsg->from->net=bestaka->net; tmsg->from->zone=bestaka->zone; tmsg->from->domain=xstrcpy(bestaka->domain); } } else { tmsg->from=(faddr *)xmalloc(sizeof(faddr)); tmsg->from->name=xstrcpy(freename); if (tmsg->from->name && (strlen(tmsg->from->name) > MAXNAME)) tmsg->from->name[MAXNAME]='\0'; tmsg->from->point=bestaka->point; tmsg->from->node=bestaka->node; tmsg->from->net=bestaka->net; tmsg->from->zone=bestaka->zone; tmsg->from->domain=xstrcpy(bestaka->domain); } } if (fbuf) free(fbuf); fbuf = NULL; p = hdr((char *)"Subject", msg); if (p) { while (isspace(*p)) p++; tmsg->subj = xstrcpy(p); if (*(p=tmsg->subj+strlen(tmsg->subj)-1) == '\n') *p='\0'; if (strlen(tmsg->subj) > MAXSUBJ) tmsg->subj[MAXSUBJ]='\0'; } else { tmsg->subj = xstrcpy((char *)" "); } if ((p = hdr((char *)"X-FTN-FLAGS",msg))) tmsg->flags |= flagset(p); if (hdr((char *)"Return-Receipt-To",msg)) tmsg->flags |= M_RRQ; if (hdr((char *)"Notice-Requested-Upon-Delivery-To",msg)) tmsg->flags |= M_RRQ; if (!newsmode) { tmsg->flags |= M_PVT; tmsg->flags |= M_KILLSENT; } if ((p = hdr((char *)"X-Origin-Date",msg))) tmsg->date = parsedate(p, NULL) - (gmt_offset((time_t)0) * 60); else if ((p = hdr((char *)"Date",msg))) tmsg->date = parsedate(p, NULL) - (gmt_offset((time_t)0) * 60); else tmsg->date = time((time_t *)NULL); /* * SunMail 1.0 creates invalid date formats like: Wed, 19 Jun 2002 18:21:07 GMT-08:00 * ^---- not allowed. */ if (tmsg->date == -1) { Syslog('!', "Parsing date \"%s\" failed, using current date", p); tmsg->date = time((time_t *)NULL); } if ((p = hdr((char *)"X-FTN-MSGID", msg))) { tmsg->ftnorigin &= 1; while (isspace(*p)) p++; tmsg->msgid_s = xstrcpy(p); if (*(p = tmsg->msgid_s + strlen(tmsg->msgid_s) -1) == '\n') *p='\0'; } else if ((p = hdr((char *)".MSGID",msg))) { tmsg->ftnorigin &= 1; while (isspace(*p)) p++; tmsg->msgid_s = xstrcpy(p); if (*(p = tmsg->msgid_s + strlen(tmsg->msgid_s) -1) == '\n') *p='\0'; } else if ((p = hdr((char *)"Message-ID",msg))) { tmsg->ftnorigin &= ftnmsgid(p,&(tmsg->msgid_a),&(tmsg->msgid_n),tmsg->area); } else tmsg->msgid_a = NULL; if ((p = hdr((char *)"X-FTN-REPLY",msg))) { while (isspace(*p)) p++; tmsg->reply_s = xstrcpy(p); if (*(p=tmsg->reply_s + strlen(tmsg->reply_s) -1) == '\n') *p='\0'; } else { if (newsmode) { p = hdr((char *)"References",msg); if (p) { l = xstrcpy(p); r = strtok(l," \t\n"); while ((l=strtok(NULL," \t\n")) != NULL) r = l; p = r; free(l); } } else p = hdr((char *)"In-Reply-To",msg); } if (p) (void)ftnmsgid(p,&(tmsg->reply_a),&(tmsg->reply_n),NULL); else tmsg->reply_a=NULL; p = hdr((char *)"Organization",msg); if (p == NULL) p = hdr((char *)"Organisation",msg); if (p) { while (isspace(*p)) p++; tmsg->origin = xstrcpy(p); if (tmsg->origin) if (*(p = tmsg->origin + strlen(tmsg->origin)-1) == '\n') *p='\0'; } else { /* * No Organization header, insert the default BBS origin. */ tmsg->origin = xstrcpy(CFG.origin); } return tmsg; }