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deb-mbse/mbfido/ptic.c
2004-07-16 20:21:23 +00:00

752 lines
19 KiB
C

/*****************************************************************************
*
* $Id$
* Purpose ...............: Process 1 .tic file
*
*****************************************************************************
* Copyright (C) 1997-2004
*
* 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.
*****************************************************************************/
#include "../config.h"
#include "../lib/mbselib.h"
#include "../lib/users.h"
#include "../lib/mbsedb.h"
#include "unpack.h"
#include "mover.h"
#include "toberep.h"
#include "tic.h"
#include "utic.h"
#include "magic.h"
#include "forward.h"
#include "rollover.h"
#include "ptic.h"
#include "magic.h"
#include "createf.h"
#include "virscan.h"
#include "qualify.h"
#include "addbbs.h"
#define UNPACK_FACTOR 300
extern int tic_bad;
extern int tic_dup;
extern int tic_out;
extern int do_quiet;
extern int check_crc;
extern int check_dupe;
/*
* Return values:
* 0 - Success
* 1 - Some error
* 2 - Orphaned tic
*/
int ProcessTic(fa_list *sbl)
{
time_t Now, Fdate;
int Age, First, Listed = FALSE, DownLinks = 0, MustRearc = FALSE;
int UnPacked = FALSE, IsArchive = FALSE, rc, i, j, k, File_Id = FALSE;
char *Temp, *unarc = NULL, *cmd = NULL;
char temp1[PATH_MAX], temp2[PATH_MAX], sbe[24], TDesc[256];
unsigned long crc, crc2, Kb;
sysconnect Link;
FILE *fp;
struct utimbuf ut;
int BBS_Imp = FALSE, DidBanner = FALSE;
faddr *p_from;
qualify *qal = NULL, *tmpq;
Now = time(NULL);
if (TIC.TicIn.PathError) {
WriteError("Our Aka is in the path");
tic_bad++;
return 1;
}
Temp = calloc(PATH_MAX, sizeof(char));
if (!do_quiet) {
colour(10, 0);
printf("Checking \b\b\b\b\b\b\b\b\b\b");
fflush(stdout);
}
if (TIC.Orphaned) {
WriteError("File not in inbound: %s", TIC.TicIn.File);
/*
* Now check the age of the .tic file.
*/
sprintf(Temp, "%s/%s", TIC.Inbound, TIC.TicName);
Fdate = file_time(Temp);
Age = (Now - Fdate) / 84400;
Syslog('+', "Orphaned tic age %d days", Age);
if (Age > 21) {
tic_bad++;
mover(TIC.TicName);
}
free(Temp);
return 2;
}
sprintf(Temp, "%s/%s", TIC.Inbound, TIC.TicIn.File);
crc = file_crc(Temp, CFG.slow_util && do_quiet);
TIC.FileSize = file_size(Temp);
TIC.FileDate = file_time(Temp);
if (TIC.TicIn.Size) {
if (TIC.TicIn.Size != TIC.FileSize)
WriteError("Size is %ld, expected %ld", TIC.FileSize, TIC.TicIn.Size);
} else {
/*
* No filesize in TIC file, add filesize.
*/
TIC.TicIn.Size = TIC.FileSize;
}
if (TIC.Crc_Int) {
if (crc != TIC.Crc_Int) {
Syslog('!', "CRC: expected %08lX, the file is %08lX", TIC.Crc_Int, crc);
if (check_crc) {
Bad((char *)"CRC: error, %s may be damaged", TIC.TicIn.File);
free(Temp);
return 1;
} else {
Syslog('!', "CRC: error, recalculating crc");
ReCalcCrc(Temp);
}
}
} else {
Syslog('+', "CRC: missing, calculating CRC");
ReCalcCrc(Temp);
}
/*
* Load and check the .TIC area.
*/
if (!SearchTic(TIC.TicIn.Area)) {
UpdateNode();
Syslog('f', "Unknown file area %s", TIC.TicIn.Area);
p_from = fido2faddr(TIC.Aka);
if (!create_ticarea(TIC.TicIn.Area, p_from)) {
Bad((char *)"Unknown file area %s", TIC.TicIn.Area);
free(Temp);
tidy_faddr(p_from);
return 1;
}
tidy_faddr(p_from);
/*
* Try to load the .TIC area again.
*/
if (!SearchTic(TIC.TicIn.Area)) {
Bad((char *)"Reload of new created file area %s failed", TIC.TicIn.Area);
free(Temp);
return 1;
}
}
if ((tic.Secure) && (!TIC.TicIn.Hatch)) {
First = TRUE;
while (GetTicSystem(&Link, First)) {
First = FALSE;
if (Link.aka.zone) {
if ((Link.aka.zone == TIC.Aka.zone) && (Link.aka.net == TIC.Aka.net) &&
(Link.aka.node == TIC.Aka.node) && (Link.aka.point== TIC.Aka.point) && (Link.receivefrom))
Listed = TRUE;
}
}
if (!Listed) {
Bad((char *)"%s NOT connected to %s", aka2str(TIC.Aka), TIC.TicIn.Area);
free(Temp);
return 1;
}
}
if ((!SearchNode(TIC.Aka)) && (!TIC.TicIn.Hatch)) {
Bad((char *)"%s NOT known", aka2str(TIC.Aka));
free(Temp);
return 1;
}
if (!TIC.TicIn.Hatch) {
if (strcasecmp(TIC.TicIn.Pw, nodes.Fpasswd)) {
Bad((char *)"Pwd error, got %s, expected %s", TIC.TicIn.Pw, nodes.Fpasswd);
free(Temp);
return 1;
}
} else {
if (strcasecmp(TIC.TicIn.Pw, CFG.hatchpasswd)) {
Bad((char *)"Password error in local Hatch");
WriteError("WARNING: it might be a Trojan in your inbound");
free(Temp);
return 1;
}
}
if (Magic_DeleteFile()) {
sprintf(temp1, "%s/%s", TIC.Inbound, TIC.TicName);
file_rm(temp1);
Syslog('+', "Deleted file %s", temp1);
file_rm(Temp);
free(Temp);
return 0;
}
if (Magic_MoveFile()) {
if (!SearchTic(TIC.TicIn.Area)) {
Bad((char *)"Unknown Area: %s", TIC.TicIn.Area);
free(Temp);
return 1;
}
}
strncpy(T_File.Echo, tic.Name, 20);
strncpy(T_File.Group, tic.Group, 12);
TIC.KeepNum = tic.KeepLatest;
Magic_Keepnum();
if (!tic.FileArea) {
Syslog('+', "Passthru TIC area!");
strcpy(TIC.BBSpath, CFG.ticout);
strcpy(TIC.BBSdesc, tic.Comment);
} else {
sprintf(Temp, "%s/etc/fareas.data", getenv("MBSE_ROOT"));
if ((fp = fopen(Temp, "r")) == NULL) {
WriteError("Can't access fareas.data area: %ld", tic.FileArea);
free(Temp);
return 1;
}
fread(&areahdr, sizeof(areahdr), 1, fp);
if (fseek(fp, ((tic.FileArea -1) * areahdr.recsize) + areahdr.hdrsize, SEEK_SET)) {
fclose(fp);
WriteError("Can't seek area %ld in fareas.data", tic.FileArea);
free(Temp);
return 1;
}
if (fread(&area, areahdr.recsize, 1, fp) != 1) {
fclose(fp);
WriteError("Can't read area %ld in fareas.data", tic.FileArea);
free(Temp);
return 1;
}
fclose(fp);
strcpy(TIC.BBSpath, area.Path);
strcpy(TIC.BBSdesc, area.Name);
/*
* If the File area has a special announce group, change
* the group to that name.
*/
if (strlen(area.NewGroup))
strncpy(T_File.Group, area.NewGroup, 12);
}
strncpy(T_File.Comment, tic.Comment, 55);
/*
* Check if the destination area really exists, it may be that
* the area is not linked to an existing BBS area.
*/
if (tic.FileArea && access(TIC.BBSpath, W_OK)) {
WriteError("No write access to \"%s\"", TIC.BBSpath);
Bad((char *)"Dest directory not available");
free(Temp);
return 1;
}
if ((tic.DupCheck) && (check_dupe)) {
sprintf(Temp, "%s%s", TIC.TicIn.Area, TIC.TicIn.Crc);
crc2 = 0xffffffff;
crc2 = upd_crc32(Temp, crc2, strlen(Temp));
if (CheckDupe(crc2, D_FILEECHO, CFG.tic_dupes)) {
Bad((char *)"Duplicate file");
tic_dup++;
free(Temp);
return 1;
}
}
/*
* Count the actual downlinks for this area and build the list of
* systems qualified to receive this file.
*/
First = TRUE;
while (GetTicSystem(&Link, First)) {
First = FALSE;
if ((Link.aka.zone) && (Link.sendto) && (!Link.pause)) {
DownLinks++;
p_from = fido2faddr(Link.aka);
if (TIC.TicIn.Hatch) {
fill_qualify(&qal, Link.aka, FALSE, in_list(p_from, &sbl, TRUE));
} else {
fill_qualify(&qal, Link.aka, ((TIC.Aka.zone == Link.aka.zone) &&
(TIC.Aka.net == Link.aka.net) && (TIC.Aka.node == Link.aka.node) &&
(TIC.Aka.point == Link.aka.point)), in_list(p_from, &sbl, TRUE));
}
tidy_faddr(p_from);
}
}
T_File.Size = TIC.FileSize;
T_File.SizeKb = TIC.FileSize / 1024;
/*
* Update the uplink's counters.
*/
Kb = TIC.FileSize / 1024;
if (SearchNode(TIC.Aka)) {
StatAdd(&nodes.FilesRcvd, 1L);
StatAdd(&nodes.F_KbRcvd, Kb);
UpdateNode();
SearchNode(TIC.Aka);
}
/*
* Update the fileecho and group counters.
*/
StatAdd(&fgroup.Files, 1L);
StatAdd(&fgroup.KBytes, Kb);
fgroup.LastDate = time(NULL);
StatAdd(&tic.Files, 1L);
StatAdd(&tic.KBytes, Kb);
tic.LastAction = time(NULL);
UpdateTic();
if (!do_quiet) {
printf("Unpacking \b\b\b\b\b\b\b\b\b\b");
fflush(stdout);
}
/*
* Check if this is an archive, and if so, which compression method
* is used for this file.
*/
if (strlen(tic.Convert) || tic.VirScan || tic.FileId || tic.ConvertAll || strlen(tic.Banner)) {
if ((unarc = unpacker(TIC.TicIn.File)) == NULL)
Syslog('+', "Unknown archive format %s", TIC.TicIn.File);
else {
IsArchive = TRUE;
if ((strlen(tic.Convert) && (strcmp(unarc, tic.Convert) == 0)) || (tic.ConvertAll))
MustRearc = TRUE;
}
}
/*
* Copy the file if there are downlinks and we send the
* original file, but want to rearc it for ourself, or if
* it's a passthru area.
*/
if (((tic.SendOrg) && (MustRearc || strlen(tic.Banner))) || (!tic.FileArea)) {
sprintf(temp1, "%s/%s", TIC.Inbound, TIC.TicIn.File);
sprintf(temp2, "%s/%s", CFG.ticout, TIC.TicIn.File);
if ((rc = file_cp(temp1, temp2) == 0)) {
TIC.SendOrg = TRUE;
} else {
WriteError("Copy %s to %s failed: %s", temp1, temp2, strerror(rc));
}
}
if ((tic.VirScan || MustRearc) && IsArchive) {
/*
* Check if there is a temp directory for the archive conversion.
*/
sprintf(temp2, "%s/tmp/arc", getenv("MBSE_ROOT"));
if ((access(temp2, R_OK)) != 0) {
if (mkdir(temp2, 0777)) {
WriteError("$Can't create %s", temp2);
free(Temp);
tidy_qualify(&qal);
return 1;
}
}
/*
* Check for stale FILE_ID.DIZ files
*/
sprintf(temp1, "%s/tmp/arc/FILE_ID.DIZ", getenv("MBSE_ROOT"));
if (!unlink(temp1))
Syslog('+', "Removed stale %s", temp1);
sprintf(temp1, "%s/tmp/arc/file_id.diz", getenv("MBSE_ROOT"));
if (!unlink(temp1))
Syslog('+', "Removed stale %s", temp1);
sprintf(temp1, "%s/tmp/FILE_ID.DIZ", getenv("MBSE_ROOT"));
if (!unlink(temp1))
Syslog('+', "Removed stale %s", temp1);
sprintf(temp1, "%s/tmp/file_id.diz", getenv("MBSE_ROOT"));
if (!unlink(temp1))
Syslog('+', "Removed stale %s", temp1);
if (!checkspace(temp2, TIC.TicIn.File, UNPACK_FACTOR)) {
Bad((char *)"Not enough free diskspace left");
free(Temp);
tidy_qualify(&qal);
return 1;
}
if (chdir(temp2) != 0) {
WriteError("$Can't change to %s", temp2);
free(Temp);
tidy_qualify(&qal);
return 1;
}
if (!getarchiver(unarc)) {
WriteError("Can't get archiver for %s", unarc);
chdir(TIC.Inbound);
free(Temp);
tidy_qualify(&qal);
return 1;
}
cmd = xstrcpy(archiver.funarc);
if ((cmd == NULL) || (cmd == "")) {
Syslog('!', "No unarc command available");
} else {
sprintf(temp1, "%s/%s", TIC.Inbound, TIC.TicIn.File);
if (execute_str(cmd, temp1, (char *)NULL, (char *)"/dev/null", (char *)"/dev/null", (char *)"/dev/null") == 0) {
UnPacked = TRUE;
} else {
chdir(TIC.Inbound);
Bad((char *)"Archive maybe corrupt");
free(Temp);
DeleteVirusWork();
return 1;
}
free(cmd);
}
}
if (tic.VirScan && !UnPacked) {
/*
* Copy file to tempdir and run scanner over the file
* whatever that is. This should catch single files
* with worms or other macro viri
*/
sprintf(temp1, "%s/%s", TIC.Inbound, TIC.TicIn.File);
sprintf(temp2, "%s/tmp/arc/%s", getenv("MBSE_ROOT"), TIC.TicIn.File);
if ((rc = file_cp(temp1, temp2))) {
WriteError("Can't copy %s to %s: %s", temp1, temp2, strerror(rc));
free(Temp);
tidy_qualify(&qal);
return 1;
}
sprintf(temp2, "%s/tmp/arc", getenv("MBSE_ROOT"));
if (chdir(temp2) != 0) {
WriteError("$Can't change to %s", temp2);
free(Temp);
tidy_qualify(&qal);
return 1;
}
}
if (tic.VirScan) {
if (!do_quiet) {
printf("Virscan \b\b\b\b\b\b\b\b\b\b");
fflush(stdout);
}
if (VirScan(NULL)) {
DeleteVirusWork();
chdir(TIC.Inbound);
Bad((char *)"Possible virus found!");
free(Temp);
tidy_qualify(&qal);
return 1;
}
if (!do_quiet) {
printf("Checking \b\b\b\b\b\b\b\b\b\b");
fflush(stdout);
}
}
if (tic.FileId && tic.FileArea && IsArchive) {
if (UnPacked) {
sprintf(temp1, "%s/tmp/arc/FILE_ID.DIZ", getenv("MBSE_ROOT"));
sprintf(temp2, "%s/tmp/FILE_ID.DIZ", getenv("MBSE_ROOT"));
if (file_cp(temp1, temp2) == 0) {
File_Id = TRUE;
} else {
sprintf(temp1, "%s/tmp/arc/file_id.diz", getenv("MBSE_ROOT"));
if (file_cp(temp1, temp2) == 0) {
File_Id = TRUE;
}
}
} else {
if (!getarchiver(unarc)) {
chdir(TIC.Inbound);
} else {
cmd = xstrcpy(archiver.iunarc);
if (cmd == NULL) {
WriteError("No unarc command available");
} else {
sprintf(temp1, "%s/tmp", getenv("MBSE_ROOT"));
chdir(temp1);
sprintf(temp1, "%s/%s FILE_ID.DIZ", TIC.Inbound, TIC.TicIn.File);
if (execute_str(cmd, temp1, (char *)NULL, (char *)"/dev/null", (char *)"/dev/null", (char *)"/dev/null") == 0) {
File_Id = TRUE;
} else {
sprintf(temp1, "%s/%s file_id.diz", TIC.Inbound, TIC.TicIn.File);
if (execute_str(cmd, temp1, (char *)NULL, (char *)"/dev/null", (char *)"/dev/null", (char *)"/dev/null") == 0) {
File_Id = TRUE;
}
}
free(cmd);
}
} /* if getarchiver */
} /* if not unpacked */
} /* if need FILE_ID.DIZ and not passthru */
/*
* Create internal file description, priority is FILE_ID.DIZ,
* 2nd LDesc, and finally the standard description.
*/
if (!Get_File_Id()) {
if (TIC.TicIn.TotLDesc > 2) {
for (i = 0; i < TIC.TicIn.TotLDesc; i++) {
strncpy(TIC.File_Id[i], TIC.TicIn.LDesc[i], 48);
}
TIC.File_Id_Ct = TIC.TicIn.TotLDesc;
} else {
/*
* Format the description line (max 255 chars) in parts of 48 characters.
*/
if (strlen(TIC.TicIn.Desc) <= 48) {
strcpy(TIC.File_Id[0], TIC.TicIn.Desc);
TIC.File_Id_Ct++;
} else {
memset(&TDesc, 0, sizeof(TDesc));
strcpy(TDesc, TIC.TicIn.Desc);
while (strlen(TDesc) > 48) {
j = 48;
while ((TDesc[j] != ' ') && (j > 0))
j--;
if (j == 0) {
Syslog('f', "Panic, no spaces");
j = 47;
}
strncpy(TIC.File_Id[TIC.File_Id_Ct], TDesc, j);
Syslog('f', "%2d/%2d: \"%s\"", TIC.File_Id_Ct, j, TIC.File_Id[TIC.File_Id_Ct]);
TIC.File_Id_Ct++;
k = strlen(TDesc);
j++; /* Correct space */
for (i = 0; i <= k; i++, j++)
TDesc[i] = TDesc[j];
if (TIC.File_Id_Ct == 23)
break;
}
strncpy(TIC.File_Id[TIC.File_Id_Ct], TDesc, 48);
Syslog('f', "%2d/%2d: \"%s\"", TIC.File_Id_Ct, strlen(TIC.File_Id[TIC.File_Id_Ct]), TIC.File_Id[TIC.File_Id_Ct]);
TIC.File_Id_Ct++;
}
}
} /* not get FILE_ID.DIZ */
/*
* Rearc file if it is an unpacked archive.
*/
if ((MustRearc) && (UnPacked) && (tic.FileArea)) {
if (Rearc(tic.Convert)) {
/*
* Get new filesize for import and announce
*/
sprintf(temp1, "%s/%s", TIC.Inbound, TIC.NewFile);
TIC.FileSize = file_size(temp1);
T_File.Size = TIC.FileSize;
T_File.SizeKb = TIC.FileSize / 1024;
/*
* Calculate the CRC if we must send the new archived file.
*/
if (!TIC.SendOrg) {
ReCalcCrc(temp1);
}
} else {
WriteError("Rearc failed");
} /* if Rearc() */
}
/*
* Change banner if needed.
*/
if ((strlen(tic.Banner)) && IsArchive) {
cmd = xstrcpy(archiver.barc);
if ((cmd == NULL) || (!strlen(cmd))) {
Syslog('!', "No banner command for %s", archiver.name);
} else {
sprintf(temp1, "%s/%s", TIC.Inbound, TIC.NewFile);
sprintf(Temp, "%s/etc/%s", getenv("MBSE_ROOT"), tic.Banner);
if (execute_str(cmd, temp1, (char *)NULL, Temp, (char *)"/dev/null", (char *)"/dev/null")) {
WriteError("$Changing the banner failed");
} else {
Syslog('+', "New banner %s", tic.Banner);
TIC.FileSize = file_size(temp1);
T_File.Size = TIC.FileSize;
T_File.SizeKb = TIC.FileSize / 1024;
ReCalcCrc(temp1);
DidBanner = TRUE;
}
}
}
DeleteVirusWork();
chdir(TIC.Inbound);
/*
* If the file is converted, we set the date of the original
* received file as the file creation date.
*/
sprintf(Temp, "%s/%s", TIC.Inbound, TIC.NewFile);
if ((MustRearc || DidBanner) && CFG.ct_KeepDate) {
if ((tic.Touch) && (tic.FileArea)) {
ut.actime = mktime(localtime(&TIC.FileDate));
ut.modtime = mktime(localtime(&TIC.FileDate));
utime(Temp, &ut);
Syslog('-', "Restamp filedate %s to %s", Temp, rfcdate(ut.modtime));
}
}
/*
* Now make sure the file timestamp is updated. The file may be restamped,
* altered by banners etc.
*/
TIC.FileDate = file_time(Temp);
/*
* If not passthru, import in the BBS.
*/
if (tic.FileArea) {
Syslog('+', "Import: %s (%s) Area: %s", TIC.NewFile, TIC.NewFullName, TIC.TicIn.Area);
BBS_Imp = Add_BBS(&qal);
if (!BBS_Imp) {
Bad((char *)"File Import Error");
free(Temp);
tidy_qualify(&qal);
return 1;
}
}
chdir(TIC.Inbound);
/*
* Create file announce record
*/
if (tic.FileArea) {
if (strlen(TIC.TicIn.Magic))
magic_update(TIC.TicIn.Magic, TIC.NewFile);
else
Magic_UpDateAlias();
for (i = 0; i <= TIC.File_Id_Ct; i++)
strncpy(T_File.LDesc[i], TIC.File_Id[i], 48);
T_File.TotLdesc = TIC.File_Id_Ct;
T_File.Announce = tic.Announce;
strncpy(T_File.Name, TIC.NewFile, 12);
strncpy(T_File.LName, TIC.NewFullName, 80);
T_File.Fdate = TIC.FileDate;
Add_ToBeRep(T_File);
}
if (TIC.SendOrg && !tic.FileArea) {
/*
* If it's a passthru area we don't need the
* file in the inbound anymore so it can be
* deleted.
*/
sprintf(temp1, "%s/%s", TIC.Inbound, TIC.TicIn.File);
if (file_rm(temp1) == 0)
Syslog('f', "Deleted %s", temp1);
}
if (DownLinks) {
First = TRUE;
/*
* Add all our system aka's to the seenby lines in the same zone,
* omit aka's already in the seenby list.
*/
for (i = 0; i < 40; i++) {
if (CFG.akavalid[i] && (tic.Aka.zone == CFG.aka[i].zone)) {
p_from = fido2faddr(CFG.aka[i]);
if (! in_list(p_from, &sbl, TRUE)) {
sprintf(sbe, "%u:%u/%u", CFG.aka[i].zone, CFG.aka[i].net, CFG.aka[i].node);
fill_list(&sbl, sbe, NULL);
}
tidy_faddr(p_from);
}
}
/*
* Add seen-by lines for all systems that will receive this file.
*/
for (tmpq = qal; tmpq; tmpq = tmpq->next) {
if (tmpq->send) {
sprintf(sbe, "%u:%u/%u", tmpq->aka.zone, tmpq->aka.net, tmpq->aka.node);
fill_list(&sbl, sbe, NULL);
} else {
Syslog('f', "Skip SB %u:%u/%u", tmpq->aka.zone, tmpq->aka.net, tmpq->aka.node);
}
}
uniq_list(&sbl);
sort_list(&sbl);
/*
* Now forward this file to the qualified downlinks.
*/
for (tmpq = qal; tmpq; tmpq = tmpq->next) {
if (tmpq->send) {
ForwardFile(tmpq->aka, sbl);
tic_out++;
}
}
}
Magic_ExecCommand();
Magic_CopyFile();
Magic_UnpackFile();
Magic_AdoptFile();
sprintf(Temp, "%s/%s", TIC.Inbound, TIC.TicName);
unlink(Temp);
free(Temp);
tidy_qualify(&qal);
return 0;
}