515 lines
11 KiB
C
515 lines
11 KiB
C
/*****************************************************************************
|
|
*
|
|
* $Id$
|
|
* Purpose ...............: Scan for new News
|
|
*
|
|
*****************************************************************************
|
|
* 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 "../lib/libs.h"
|
|
#include "../lib/structs.h"
|
|
#include "../lib/users.h"
|
|
#include "../lib/records.h"
|
|
#include "../lib/common.h"
|
|
#include "../lib/clcomm.h"
|
|
#include "../lib/mbinet.h"
|
|
#include "../lib/dbdupe.h"
|
|
#include "../lib/dbnode.h"
|
|
#include "../lib/dbmsgs.h"
|
|
#include "../lib/msg.h"
|
|
#include "../lib/msgtext.h"
|
|
#include "mkftnhdr.h"
|
|
#include "hash.h"
|
|
#include "rollover.h"
|
|
#include "pack.h"
|
|
#include "storeecho.h"
|
|
#include "rfc2ftn.h"
|
|
#include "scannews.h"
|
|
|
|
|
|
#define MAXHDRSIZE 2048
|
|
#define MAXSEEN 70
|
|
#define MAXPATH 73
|
|
|
|
|
|
/*
|
|
* Global variables
|
|
*/
|
|
POverview xoverview = NULL;
|
|
int marker = 0;
|
|
|
|
|
|
|
|
/*
|
|
* External variables
|
|
*/
|
|
extern int do_quiet;
|
|
extern int do_learn;
|
|
extern int most_debug;
|
|
extern int news_in;
|
|
extern int news_imp;
|
|
extern int news_dupe;
|
|
extern int echo_out;
|
|
extern int echo_in;
|
|
extern char *replyaddr;
|
|
|
|
|
|
|
|
/*
|
|
* Internal functions
|
|
*/
|
|
int do_one_group(List **, char *, char *);
|
|
int get_xover(char *, long, long, List **);
|
|
int get_xoverview(void);
|
|
void tidy_artlist(List **);
|
|
void fill_artlist(List **, char *, long, int);
|
|
void Marker(void);
|
|
int get_article(char *, char *);
|
|
|
|
|
|
|
|
void tidy_artlist(List **fdp)
|
|
{
|
|
List *tmp, *old;
|
|
|
|
for (tmp = *fdp; tmp; tmp = old) {
|
|
old = tmp->next;
|
|
free(tmp);
|
|
}
|
|
*fdp = NULL;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Add article to the list
|
|
*/
|
|
void fill_artlist(List **fdp, char *id, long nr, int dupe)
|
|
{
|
|
List **tmp;
|
|
|
|
Syslog('N', "Fill %s %ld %s", id, nr, dupe ? "Dupe":"New msg");
|
|
|
|
for (tmp = fdp; *tmp; tmp = &((*tmp)->next));
|
|
*tmp = (List *)malloc(sizeof(List));
|
|
(*tmp)->next = NULL;
|
|
sprintf((*tmp)->msgid, "%s", id);
|
|
(*tmp)->nr = nr;
|
|
(*tmp)->isdupe = dupe;
|
|
}
|
|
|
|
|
|
|
|
void Marker(void)
|
|
{
|
|
if (do_quiet)
|
|
return;
|
|
|
|
switch (marker) {
|
|
case 0: printf(">---");
|
|
break;
|
|
|
|
case 1: printf(">>--");
|
|
break;
|
|
|
|
case 2: printf(">>>-");
|
|
break;
|
|
|
|
case 3: printf(">>>>");
|
|
break;
|
|
|
|
case 4: printf("<>>>");
|
|
break;
|
|
|
|
case 5: printf("<<>>");
|
|
break;
|
|
|
|
case 6: printf("<<<>");
|
|
break;
|
|
|
|
case 7: printf("<<<<");
|
|
break;
|
|
|
|
case 8: printf("-<<<");
|
|
break;
|
|
|
|
case 9: printf("--<<");
|
|
break;
|
|
|
|
case 10:printf("---<");
|
|
break;
|
|
|
|
case 11:printf("----");
|
|
break;
|
|
}
|
|
printf("\b\b\b\b");
|
|
fflush(stdout);
|
|
|
|
if (marker < 11)
|
|
marker++;
|
|
else
|
|
marker = 0;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Scan for new news available at the nntp server.
|
|
*/
|
|
void ScanNews(void)
|
|
{
|
|
List *art = NULL;
|
|
POverview tmp, old;
|
|
FILE *pAreas;
|
|
char *sAreas;
|
|
struct msgareashdr Msgshdr;
|
|
struct msgareas Msgs;
|
|
|
|
IsDoing((char *)"Scan News");
|
|
if (nntp_connect() == -1) {
|
|
WriteError("Can't connect to newsserver");
|
|
return;
|
|
}
|
|
if (get_xoverview())
|
|
return;
|
|
|
|
if (!do_quiet) {
|
|
colour(10, 0);
|
|
printf("Scan for new news articles\n");
|
|
}
|
|
|
|
sAreas = calloc(PATH_MAX, sizeof(char));
|
|
sprintf(sAreas, "%s/etc/mareas.data", getenv("MBSE_ROOT"));
|
|
if(( pAreas = fopen (sAreas, "r")) == NULL) {
|
|
WriteError("$Can't open Messages Areas File.");
|
|
return;
|
|
}
|
|
fread(&Msgshdr, sizeof(Msgshdr), 1, pAreas);
|
|
|
|
while (fread(&Msgs, Msgshdr.recsize, 1, pAreas) == 1) {
|
|
fseek(pAreas, Msgshdr.syssize, SEEK_CUR);
|
|
if ((Msgs.Active) && strlen(Msgs.Newsgroup)) {
|
|
if (IsSema((char *)"upsalarm")) {
|
|
Syslog('+', "Detected upsalarm semafore, aborting newsscan");
|
|
break;
|
|
}
|
|
Syslog('n', "Scan newsgroup: %s", Msgs.Newsgroup);
|
|
if (!do_quiet) {
|
|
colour(3, 0);
|
|
printf("\r%-40s", Msgs.Newsgroup);
|
|
fflush(stdout);
|
|
}
|
|
Nopper();
|
|
if (do_one_group(&art, Msgs.Newsgroup, Msgs.Tag) == RETVAL_ERROR)
|
|
break;
|
|
}
|
|
}
|
|
fclose(pAreas);
|
|
free(sAreas);
|
|
|
|
for (tmp = xoverview; tmp; tmp = old) {
|
|
old = tmp->next;
|
|
if (tmp->header)
|
|
free(tmp->header);
|
|
if (tmp->field)
|
|
free(tmp->field);
|
|
free(tmp);
|
|
}
|
|
packmail();
|
|
|
|
if (!do_quiet)
|
|
printf("\r \r");
|
|
}
|
|
|
|
|
|
|
|
int do_one_group(List **art, char *grpname, char *ftntag)
|
|
{
|
|
List *tmp;
|
|
char temp[128], *resp;
|
|
int retval, fetched = 0;
|
|
long total, start, end;
|
|
|
|
Syslog('N', "do_one_group(%s, %s)", grpname, ftntag);
|
|
IsDoing((char *)"Scan %s", grpname);
|
|
sprintf(temp, "GROUP %s\r\n", grpname);
|
|
nntp_send(temp);
|
|
resp = nntp_receive();
|
|
retval = atoi(strtok(resp, " "));
|
|
if (retval != 211) {
|
|
if (retval == 411)
|
|
WriteError("No such newsgroup: %s", grpname);
|
|
else
|
|
WriteError("Unknown response %d to GROUP command", retval);
|
|
return RETVAL_ERROR;
|
|
}
|
|
|
|
total = atol(strtok(NULL, " "));
|
|
start = atol(strtok(NULL, " "));
|
|
end = atol(strtok(NULL, " '\0'"));
|
|
Syslog('n', "GROUP total %d, start %d, end %d", total, start, end);
|
|
if ((msgs.MaxArticles) && (total > msgs.MaxArticles)) {
|
|
start = end - msgs.MaxArticles;
|
|
total = msgs.MaxArticles;
|
|
Syslog('n', "NEW: total %d, start %d, end %d", total, start, end);
|
|
}
|
|
if (!total) {
|
|
Syslog('N', "No articles");
|
|
return RETVAL_OK;
|
|
}
|
|
|
|
retval = get_xover(grpname, start, end, art);
|
|
if (retval != RETVAL_OK) {
|
|
tidy_artlist(art);
|
|
return retval;
|
|
}
|
|
|
|
if (!do_learn) {
|
|
for (tmp = *art; tmp; tmp = tmp->next) {
|
|
if (!tmp->isdupe) {
|
|
/*
|
|
* If the message isn't a dupe, it must be new for us.
|
|
*/
|
|
most_debug = TRUE;
|
|
get_article(tmp->msgid, ftntag);
|
|
most_debug = FALSE;
|
|
fetched++;
|
|
}
|
|
}
|
|
}
|
|
|
|
tidy_artlist(art);
|
|
|
|
if ((msgs.MaxArticles) && (fetched == msgs.MaxArticles))
|
|
Syslog('!', "Warning: the maximum articles value for this group might be to low");
|
|
|
|
return RETVAL_OK;
|
|
}
|
|
|
|
|
|
|
|
int get_article(char *msgid, char *ftntag)
|
|
{
|
|
char cmd[81], *resp;
|
|
int retval, done = FALSE;
|
|
FILE *fp = NULL;
|
|
|
|
Syslog('n', "Get article %s, %s", msgid, ftntag);
|
|
if (!SearchMsgs(ftntag)) {
|
|
WriteError("Search message area %s failed", ftntag);
|
|
return RETVAL_ERROR;
|
|
}
|
|
IsDoing("Article %d", (news_in + 1));
|
|
sprintf(cmd, "ARTICLE %s\r\n", msgid);
|
|
nntp_send(cmd);
|
|
resp = nntp_receive();
|
|
retval = atoi(strtok(resp, " "));
|
|
switch (retval) {
|
|
case 412: WriteError("No newsgroup selected");
|
|
return RETVAL_UNEXPECTEDANS;
|
|
case 420: WriteError("No current article has been selected");
|
|
return RETVAL_UNEXPECTEDANS;
|
|
case 423: WriteError("No such article in this group");
|
|
return RETVAL_UNEXPECTEDANS;
|
|
case 430: WriteError("No such article found");
|
|
return RETVAL_UNEXPECTEDANS;
|
|
case 220: if ((fp = tmpfile()) == NULL) {
|
|
WriteError("$Can't open tmpfile");
|
|
return RETVAL_UNEXPECTEDANS;
|
|
}
|
|
while (done == FALSE) {
|
|
resp = nntp_receive();
|
|
if ((strlen(resp) == 1) && (strcmp(resp, ".") == 0)) {
|
|
done = TRUE;
|
|
} else {
|
|
fwrite(resp, strlen(resp), 1, fp);
|
|
fputc('\n', fp);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
IsDoing("Article %d", (news_in));
|
|
retval = rfc2ftn(fp, NULL);
|
|
fclose(fp);
|
|
return retval;
|
|
}
|
|
|
|
|
|
|
|
int get_xover(char *grpname, long startnr, long endnr, List **art)
|
|
{
|
|
char cmd[81], *ptr, *ptr2, *resp, *p;
|
|
int retval, dupe, done = FALSE;
|
|
long nr;
|
|
unsigned long crc;
|
|
POverview pov;
|
|
|
|
sprintf(cmd, "XOVER %ld-%ld\r\n", startnr, endnr);
|
|
if ((retval = nntp_cmd(cmd, 224))) {
|
|
switch (retval) {
|
|
case 412:
|
|
WriteError("No newsgroup selected");
|
|
return RETVAL_NOXOVER;
|
|
case 502:
|
|
WriteError("Permission denied");
|
|
return RETVAL_NOXOVER;
|
|
case 420:
|
|
Syslog('n', "No articles in group %s", grpname);
|
|
return RETVAL_OK;
|
|
}
|
|
}
|
|
|
|
while (done == FALSE) {
|
|
resp = nntp_receive();
|
|
if ((strlen(resp) == 1) && (strcmp(resp, ".") == 0)) {
|
|
done = TRUE;
|
|
} else {
|
|
Marker();
|
|
Nopper();
|
|
pov = xoverview;
|
|
ptr = resp;
|
|
ptr2 = ptr;
|
|
|
|
/*
|
|
* First item is the message number.
|
|
*/
|
|
while (*ptr2 != '\0' && *ptr2 != '\t')
|
|
ptr2++;
|
|
if (*ptr2 != '\0')
|
|
*(ptr2) = '\0';
|
|
nr = atol(ptr);
|
|
ptr = ptr2;
|
|
ptr++;
|
|
|
|
/*
|
|
* Search the message-id
|
|
*/
|
|
while (*ptr != '\0' && pov != NULL && strcmp(pov->header, "Message-ID:") != 0) {
|
|
/*
|
|
* goto the next field, past the tab.
|
|
*/
|
|
pov = pov->next;
|
|
|
|
while (*ptr != '\t' && *ptr != '\0')
|
|
ptr++;
|
|
if (*ptr != '\0')
|
|
ptr++;
|
|
}
|
|
if (*ptr != '\0' && pov != NULL) {
|
|
/*
|
|
* Found it, now find start of msgid
|
|
*/
|
|
while (*ptr != '\0' && *ptr != '<')
|
|
ptr++;
|
|
if(ptr != '\0') {
|
|
ptr2 = ptr;
|
|
while(*ptr2 != '\0' && *ptr2 != '>')
|
|
ptr2++;
|
|
if (*ptr2 != '\0') {
|
|
*(ptr2+1) = '\0';
|
|
p = xstrcpy(ptr);
|
|
p = xstrcat(p, grpname);
|
|
crc = str_crc32(p);
|
|
dupe = CheckDupe(crc, D_NEWS, CFG.nntpdupes);
|
|
fill_artlist(art, ptr, nr, dupe);
|
|
free(p);
|
|
if (CFG.slow_util && do_quiet)
|
|
usleep(1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return RETVAL_OK;
|
|
}
|
|
|
|
|
|
|
|
int get_xoverview(void)
|
|
{
|
|
int retval, len, full, done = FALSE;
|
|
char *resp;
|
|
POverview tmp, curptr = NULL;
|
|
|
|
Syslog('n', "Getting overview format list");
|
|
if ((retval = nntp_cmd((char *)"LIST overview.fmt\r\n", 215)) == 0) {
|
|
while (done == FALSE) {
|
|
resp = nntp_receive();
|
|
if ((strcmp(resp, ".") == 0) && (strlen(resp) == 1)) {
|
|
done = TRUE;
|
|
} else {
|
|
len = strlen(resp);
|
|
/*
|
|
* Check for the full flag, which means the field name
|
|
* is in the xover string.
|
|
*/
|
|
full = (strstr(resp, ":full") == NULL) ? FALSE : TRUE;
|
|
/*
|
|
* Now get rid of everything back to :
|
|
*/
|
|
while (resp[len] != ':')
|
|
resp[len--] = '\0';
|
|
len++;
|
|
|
|
tmp = malloc(sizeof(Overview));
|
|
tmp->header = calloc(len + 1, sizeof(char));
|
|
strncpy(tmp->header, resp, len);
|
|
tmp->header[len] = '\0';
|
|
tmp->next = NULL;
|
|
tmp->field = NULL;
|
|
tmp->fieldlen = 0;
|
|
tmp->full = full;
|
|
|
|
if (curptr == NULL) {
|
|
/* at head of list */
|
|
curptr = tmp;
|
|
xoverview = tmp;
|
|
} else {
|
|
/* add to linked list */
|
|
curptr->next = tmp;
|
|
curptr = tmp;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ((tmp = xoverview) != NULL) {
|
|
Syslog('N', "--Xoverview.fmt list");
|
|
while (tmp != NULL) {
|
|
if (tmp->header != NULL) {
|
|
Syslog('N', "item = %s -- full = %s", tmp->header, tmp->full ? "True":"False");
|
|
}
|
|
tmp = tmp->next;
|
|
}
|
|
}
|
|
} else {
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|