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deb-mbse/mbfido/queue.c

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/*****************************************************************************
*
* $Id$
* Purpose ...............: Mail and file queue operations
*
*****************************************************************************
* Copyright (C) 1997-2002
*
* 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, 675 Mass Ave, Cambridge, MA 02139, USA.
*****************************************************************************/
#include "../config.h"
#include "../lib/libs.h"
#include "../lib/memwatch.h"
#include "../lib/structs.h"
#include "../lib/users.h"
#include "../lib/records.h"
#include "../lib/common.h"
#include "../lib/clcomm.h"
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#include "../lib/dbnode.h"
#include "../lib/dbftn.h"
#include "fsort.h"
#include "dirsession.h"
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#include "queue.h"
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static char *dow[] = {(char *)"su", (char *)"mo", (char *)"tu", (char *)"we",
(char *)"th", (char *)"fr", (char *)"sa"};
extern int do_quiet;
extern int flushed;
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/*
* Flush one queue directory of a node. If everything is successfull the
* directory will become empty.
*/
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void flush_dir(char *);
void flush_dir(char *ndir)
{
struct dirent *de;
DIR *dp;
FILE *fp, *inf, *ouf;
faddr noden, *bestaka;
fidoaddr nodenr;
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int flavor, mode, Attach, fage, first, bread, rc;
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long fsize;
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char *p, *temp, *fname, *arcfile, *pktfile, *ext, maxnr, nr, oldnr, *buf;
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time_t Now;
struct tm *ptm;
struct stat sbuf;
fd_list *fdl = NULL;
temp = calloc(PATH_MAX, sizeof(char));
sprintf(temp, "%s/%s", CFG.out_queue, ndir);
if (chdir(temp) == -1) {
WriteError("$Error chdir to %s", temp);
free(temp);
return;
}
/*
* Get the nodenumber from the filename
*/
noden.domain = NULL;
noden.name = NULL;
noden.zone = atoi(strtok(ndir, "."));
noden.net = atoi(strtok(NULL, "."));
noden.node = atoi(strtok(NULL, "."));
noden.point = atoi(strtok(NULL, "\0"));
if (SearchFidonet(noden.zone))
noden.domain = xstrcpy(fidonet.domain);
memset(&nodenr, 0, sizeof(nodenr));
nodenr.zone = noden.zone;
nodenr.net = noden.net;
nodenr.node = noden.node;
nodenr.point = noden.point;
sprintf(nodenr.domain, "%s", noden.domain);
if (!SearchNode(nodenr)) {
/*
* Node not known, blank noderecord and fill in some details
* so that we are able to send mail crash or immediate.
*/
Syslog('+', "Node %s not in setup, using default settings", aka2str(nodenr));
memset(&nodes, 0, sizeof(nodes));
nodes.Aka[0].zone = noden.zone;
nodes.Aka[0].net = noden.net;
nodes.Aka[0].node = noden.node;
nodes.Aka[0].point = noden.point;
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}
/*
* If we route via another aka, change everything.
*/
if (nodes.RouteVia.zone) {
p = xstrcpy(aka2str(nodenr));
Syslog('+', "Route to %s via %s", p, aka2str(nodes.RouteVia));
free(p);
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noden.zone = nodes.RouteVia.zone;
noden.net = nodes.RouteVia.net;
noden.node = nodes.RouteVia.node;
noden.point = nodes.RouteVia.point;
if (noden.domain)
free(noden.domain);
noden.domain = xstrcpy(nodes.RouteVia.domain);
/*
* Load routevia noderecord to get the correct flavor.
* If there is no noderecord, reload the old one.
*/
if (!SearchNode(nodes.RouteVia))
SearchNode(nodenr);
}
/*
* At this point we are ready to add everything to the real outbound.
* Lock the node, if this fails because the node is busy we abort
* and try to add at a later time.
*/
if (nodes.Session_out == S_DIR) {
if (islocked(nodes.Dir_out_clock, nodes.Dir_out_chklck, nodes.Dir_out_waitclr, 'p')) {
Syslog('+', "Mail and files stay in queue, will be added later");
if (noden.domain)
free(noden.domain);
free(temp);
return;
} else {
if (! setlock(nodes.Dir_out_mlock, nodes.Dir_out_mklck, 'p')) {
Syslog('+', "Mail and files stay in queue, will be added later");
if (noden.domain)
free(noden.domain);
free(temp);
return;
}
}
} else {
if (nodelock(&noden)) {
Syslog('+', "Mail and files stay in queue, will be added later");
if (noden.domain)
free(noden.domain);
free(temp);
return;
}
}
/*
* Create arcmail filename for this node.
*/
Now = time(NULL);
arcfile = calloc(PATH_MAX, sizeof(char));
if (nodes.Session_out == S_DIR) {
ptm = localtime(&Now);
ext = dow[ptm->tm_wday];
if (!nodes.ARCmailCompat && (nodes.Aka[0].zone != noden.zone)) {
/*
* Generate ARCfile name from the CRC of the ASCII string of the node address.
*/
sprintf(arcfile, "%s/%08lx.%s0", nodes.Dir_out_path, StringCRC32(ascfnode(&noden, 0x1f)), ext);
} else {
bestaka = bestaka_s(&noden);
if (noden.point) {
sprintf(arcfile, "%s/%04x%04x.%s0", nodes.Dir_out_path, ((bestaka->net) - (noden.net)) & 0xffff,
((bestaka->node) - (noden.node) + (noden.point)) & 0xffff, ext);
} else if (bestaka->point) {
/*
* Inserted the next code for if we are a point,
* I hope this is ARCmail 0.60 compliant. 21-May-1999
*/
sprintf(arcfile, "%s/%04x%04x.%s0", nodes.Dir_out_path, ((bestaka->net) - (noden.net)) & 0xffff,
((bestaka->node) - (noden.node) - (bestaka->point)) & 0xffff, ext);
} else {
sprintf(arcfile, "%s/%04x%04x.%s0", nodes.Dir_out_path, ((bestaka->net) - (noden.net)) & 0xffff,
((bestaka->node) - (noden.node)) &0xffff, ext);
}
}
} else {
sprintf(arcfile, "%s", arcname(&noden, nodes.Aka[0].zone, nodes.ARCmailCompat));
}
Syslog('p', "Arcmail file %s", arcfile);
/*
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* If there is a mailpkt.qqq file, close it and rename it.
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*/
pktfile = calloc(PATH_MAX, sizeof(char));
fname = calloc(PATH_MAX, sizeof(char));
sprintf(fname, "%s/mailpkt.qqq", temp);
if (access(fname, W_OK) == 0) {
sprintf(pktfile, "%s/%08lx.pkt", temp, sequencer());
if (rename(fname, pktfile)) {
WriteError("$Can't rename %s to %s", fname, pktfile);
} else {
/*
* Add zero word to end of .pkt file
*/
if ((fp = fopen(pktfile, "a+")) == NULL) {
WriteError("$Can't open %s", pktfile);
}
putc('\0', fp);
putc('\0', fp);
fsync(fileno(fp));
fclose(fp);
Syslog('p', "Renamed %s to %s", fname, pktfile);
}
}
free(fname);
/*
* Now all mail pkts are ready to archive
*/
if ((dp = opendir(temp)) == NULL) {
WriteError("$Can't open %s", temp);
free(temp);
free(arcfile);
if (nodes.Session_out == S_DIR)
remlock(nodes.Dir_out_mlock, nodes.Dir_out_mklck, 'p');
else
nodeulock(&noden);
if (noden.domain)
free(noden.domain);
return;
}
/*
* Read all .pkt filenames, get the timestamp and add them
* to the memory array for later sort on filedate.
*/
while ((de = readdir(dp)))
if ((strlen(de->d_name) == 12) && (strncasecmp(de->d_name+8,".pkt",4) == 0)) {
stat(de->d_name, &sbuf);
Syslog('p', "Adding %s to filelist", de->d_name);
fill_fdlist(&fdl, de->d_name, sbuf.st_mtime);
}
closedir(dp);
sort_fdlist(&fdl);
if (getarchiver((char *)"ZIP")) {
flavor = 'f';
if (nodes.Crash)
flavor = 'c';
if (nodes.Hold)
flavor = 'h';
} else {
WriteError("Archiver ZIP not found");
if (noden.domain)
free(noden.domain);
free(temp);
free(arcfile);
return;
}
first = TRUE;
while ((fname = pull_fdlist(&fdl)) != NULL) {
/*
* Check the size of the existing archive if there is a size limit.
* Change to new archive names if the existing is too large.
* If the archive size is zero, it's an already sent archive, the
* number will be bumped also.
* If the archive is older then 6 days, the name is also bumped.
* Do this until we find a new name or if the last digit is a '9' or 'z'.
* Purge archives older then toss_days.
*/
nr = oldnr = '0';
if (nodes.ARCmailAlpha)
maxnr = 'z';
else
maxnr = '9';
Attach = FALSE;
for (;;) {
fsize = file_size(arcfile);
fage = (int)((Now - file_time(arcfile)) / 86400);
if (fsize == -1L) {
Attach = TRUE;
break;
}
if (fsize == 0L) {
if ((fage > 6) && (nr < maxnr)) {
/*
* Remove truncated ARCmail files older then 6 days.
*/
unlink(arcfile);
fsize = -1L;
Attach = TRUE;
break;
}
/*
* Increase filename extension if there is a truncated file of today.
*/
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if (nr < maxnr) {
nr++;
if (nr == ('9' +1))
nr = 'a';
arcfile[strlen(arcfile) -1] = nr;
} else {
Syslog('!', "Warning: archive filename extensions exhausted for today");
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break;
}
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} else if (CFG.maxarcsize && (fsize > (CFG.maxarcsize * 1024)) && (nr < maxnr)) {
/*
* Use a new ARCmail file if the last one is too big.
*/
nr++;
if (nr == ('9' +1))
nr = 'a';
arcfile[strlen(arcfile) -1] = nr;
}
fsize = file_size(arcfile);
fage = (int)((Now - file_time(arcfile)) / 86400);
if ((fsize > 0L) && (fage > 6) && (nr < maxnr)) {
/*
* If there is ARCmail of a week old or older, add mail
* to a new ARCmail bundle.
*/
nr++;
if (nr == ('9' +1))
nr = 'a';
arcfile[strlen(arcfile) -1] = nr;
}
if (oldnr == nr)
break;
else
oldnr = nr;
}
fsize = file_size(arcfile);
/*
* If arcfile names were exhausted then the file ending on a z could still
* be in the outbound but truncated if it has been sent. Since we are
* reusing that filename (not a good solution) we must erase it or the
* archiver program will complain.
*/
if (fsize == 0L) {
unlink(arcfile);
Attach = TRUE;
}
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if (first) {
Syslog('+', "Pack ARCmail for %s, via %s", aka2str(nodenr), ascfnode(&noden, 0x1f));
if (!do_quiet) {
printf("\rAdding ARCmail for %s ", ascfnode(&noden, 0x1f));
fflush(stdout);
}
first = FALSE;
flushed = TRUE;
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}
if (execute(archiver.marc, arcfile, fname, (char *)"/dev/null", (char *)"/dev/null", (char *)"/dev/null") == 0) {
unlink(fname);
} else {
Syslog('+', "Create ARCmail failed, trying again after sync()");
sync();
sleep(1);
if (execute(archiver.marc, arcfile, fname, (char *)"/dev/null", (char *)"/dev/null", (char *)"/dev/null") == 0) {
unlink(fname);
} else {
WriteError("Can't add %s to ARCmail archive", fname);
Attach = FALSE;
}
}
/*
* Change filemode so downlink has rights to the file.
*/
if (nodes.Session_out == S_DIR)
chmod(arcfile, 0660);
/*
* Attach file to .flo, not for FTP or Directory sessions.
*/
if (Attach && nodes.Session_out == S_DIRECT)
attach(noden, arcfile, TFS, flavor);
}
/*
* Open directory again.
*/
if ((dp = opendir(temp)) == NULL) {
WriteError("$Can't open %s", temp);
free(temp);
free(arcfile);
if (nodes.Session_out == S_DIR)
remlock(nodes.Dir_out_mlock, nodes.Dir_out_mklck, 'p');
else
nodeulock(&noden);
if (noden.domain)
free(noden.domain);
return;
}
/*
* Read all other mail filenames, get the timestamp and add them
* to the memory array for later sort on filedate.
*/
while ((de = readdir(dp)))
if ((strlen(de->d_name) == 11) && (strncasecmp(de->d_name,"mailpkt.",8) == 0)) {
stat(de->d_name, &sbuf);
Syslog('p', "Adding %s to filelist", de->d_name);
fill_fdlist(&fdl, de->d_name, sbuf.st_mtime);
}
closedir(dp);
sort_fdlist(&fdl);
first = TRUE;
while ((fname = pull_fdlist(&fdl)) != NULL) {
if (first) {
Syslog('+', "Pack unpacked mail for %s, via %s", aka2str(nodenr), ascfnode(&noden, 0x1f));
if (!do_quiet) {
printf("\rAdding netmail for %s ", ascfnode(&noden, 0x1f));
fflush(stdout);
}
first = FALSE;
flushed = TRUE;
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}
sprintf(pktfile, "%s/%s", temp, fname);
if (strstr(fname, ".iii"))
flavor = 'i';
else if (strstr(fname, ".ccc"))
flavor = 'c';
else if (strstr(fname, ".hhh"))
flavor = 'h';
else
flavor = 'o';
if (nodes.Session_out == S_DIR) {
if (noden.point)
sprintf(arcfile, "%s/%08x.%cut", nodes.Dir_out_path, noden.point, flavor);
else
sprintf(arcfile, "%s/%04x%04x.%cut", nodes.Dir_out_path, noden.net, noden.node, flavor);
} else {
sprintf(arcfile, "%s", pktname(&noden, flavor));
}
Syslog('p', "Outfile: %s", arcfile);
Syslog('p', "Pktfile: %s", pktfile);
/*
* Now we must see if there is already mail in the outbound.
* If that's the case, we must skip the .pkt header from the queue
* because there is already a .pkt header also, append to the
* outbound 2 bytes before the end of file, this is the zero word.
*/
if ((inf = fopen(pktfile, "r")) != NULL) {
if (access(arcfile, R_OK) == -1) {
ouf = fopen(arcfile, "w"); /* create new */
Syslog('p', "Create new %s", arcfile);
} else {
ouf = fopen(arcfile, "r+"); /* open R/W */
fseek(ouf, -2, SEEK_END); /* b4 0 word */
fseek(inf, 58, SEEK_SET); /* skip header */
Syslog('p', "Append to %s", arcfile);
}
if (ouf != NULL) {
buf = malloc(16384);
do {
bread = fread(buf, 1, 16384, inf);
fwrite(buf, 1, bread, ouf);
} while (bread);
free(buf);
putc('\0', ouf);
putc('\0', ouf);
fsync(fileno(ouf));
fclose(ouf);
fclose(inf);
unlink(pktfile);
} else {
WriteError("$Can't open %s", arcfile);
fclose(inf);
}
}
/*
* Change filemode so downlink has rights to the file.
*/
if (nodes.Session_out == S_DIR)
chmod(arcfile, 0660);
}
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/*
* Now add the files for the node, information is in the .filelist
* file, this tells the location of the file and what to do with
* it after it is sent.
*/
sprintf(pktfile, "%s/.filelist", temp);
if ((fp = fopen(pktfile, "r")) != NULL) {
Syslog('+', "Adding files for %s, via %s", aka2str(nodenr), ascfnode(&noden, 0x1f));
if (!do_quiet) {
printf("\rAdding files for %s ", ascfnode(&noden, 0x1f));
fflush(stdout);
flushed = TRUE;
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}
buf = calloc(PATH_MAX + 1, sizeof(char));
while (fgets(buf, PATH_MAX, fp)) {
Striplf(buf);
flavor = buf[0];
p = strchr(buf, ' ');
p++;
if (strncmp(p, "LEAVE ", 6) == 0)
mode = LEAVE;
else if (strncmp(p, "KFS ", 4) == 0)
mode = KFS;
else if (strncmp(p, "TFS ", 4) == 0)
mode = TFS;
else {
WriteError("Syntax error in filelist \"%s\"", buf);
mode = LEAVE;
}
p = strchr(p, ' ');
p++;
Syslog('+', "File attach %s", p);
if (nodes.Session_out == S_DIRECT) {
attach(noden, p, mode, flavor);
} else if (nodes.Session_out == S_DIR) {
sprintf(arcfile, "%s/%s", nodes.Dir_out_path, basename(p));
if (mode == LEAVE) {
/*
* LEAVE file, so we copy this one.
*/
rc = file_cp(p, arcfile);
Syslog('p', "file_cp(%s, %s) rc=%d", p, arcfile, rc);
} else {
/*
* KFS or TFS, move file to node directory
*/
rc = file_mv(p, arcfile);
Syslog('p', "file_mv(%s, %s) rc=%d", p, arcfile, rc);
}
chmod(arcfile, 0660);
}
Syslog('p', "%c %d %s", flavor, mode, pktfile);
}
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free(buf);
fclose(fp);
unlink(pktfile);
}
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/*
* We are done, the queue is flushed, unlock the node.
*/
if (nodes.Session_out == S_DIR)
remlock(nodes.Dir_out_mlock, nodes.Dir_out_mklck, 'p');
else
nodeulock(&noden);
if (noden.domain)
free(noden.domain);
free(temp);
free(arcfile);
free(pktfile);
return;
}
/*
* Flush outbound queue to real outbound.
*/
void flush_queue(void)
{
char *temp;
struct dirent *de;
DIR *dp;
Syslog('+', "Flushing outbound queue");
if (!diskfree(CFG.freespace))
return;
IsDoing("Flush queue");
if (!do_quiet) {
colour(LIGHTBLUE, BLACK);
printf("Flushing outbound queue\n");
colour(CYAN, BLACK);
}
temp = calloc(PATH_MAX, sizeof(char));
sprintf(temp, "%s/foobar", CFG.out_queue);
mkdirs(temp, 0750);
if ((dp = opendir(CFG.out_queue)) == 0) {
WriteError("$Can't open %s", CFG.out_queue);
free(temp);
return;
}
/*
* The outbound queue contains subdirectories which actuallly hold the
* queue outbound files. Process each found subdirectory.
*/
while ((de = readdir(dp))) {
if (strcmp(de->d_name, ".") && strcmp(de->d_name, "..")) {
sprintf(temp, "%s/%s", CFG.out_queue, de->d_name);
Syslog('p', "Queue directory %s", temp);
flush_dir(de->d_name);
if (chdir(CFG.out_queue))
WriteError("$Can't chdir to %s", CFG.out_queue);
if (rmdir(temp))
WriteError("$Can't rmdir %s", temp);
}
}
closedir(dp);
free(temp);
if (!do_quiet) {
printf("\r \r");
fflush(stdout);
}
}
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