318 lines
8.2 KiB
C
318 lines
8.2 KiB
C
/*****************************************************************************
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*
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* $Id$
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* Purpose ...............: File Transfers
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*
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*****************************************************************************
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* Copyright (C) 1997-2004
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*
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* Michiel Broek FIDO: 2:280/2802
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* Beekmansbos 10
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* 1971 BV IJmuiden
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* the Netherlands
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*
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* This file is part of MBSE BBS.
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*
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* This BBS is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* MBSE BBS is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with MBSE BBS; see the file COPYING. If not, write to the Free
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* Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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*****************************************************************************/
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#include "../config.h"
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#include "../lib/mbselib.h"
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#include "../lib/mbse.h"
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#include "../lib/users.h"
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#include "transfer.h"
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#include "change.h"
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#include "whoson.h"
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#include "funcs.h"
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#include "term.h"
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#include "ttyio.h"
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#include "filesub.h"
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#include "language.h"
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#include "openport.h"
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#include "timeout.h"
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/*
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Design remarks.
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This entry must accept up and downloads at the same time in case a users
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wants to download but uses a bidirectional protocol and has something to
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upload.
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First design fase: support the now used external protocols and link it to
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the rest of the bbs.
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Second design fase: add build-in zmodem and ymodem-1k.
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To think of:
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- Drop bidirectional support, is this still in use. No bimodem specs and
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Hydra seems not implemented in any terminal emulator.
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- Add sliding kermit? Can still be used externally.
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- Add special internet protocol and make a module for minicom. No, this
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would mean only a few users will use it.
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*/
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char *transfertime(struct timeval, struct timeval, long bytes, int);
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int ForceProtocol()
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{
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/*
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* If user has no default protocol, make sure he has one.
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*/
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if (strcmp(sProtName, "") == 0) {
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Chg_Protocol();
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/*
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* If the user didn't pick a protocol, quit.
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*/
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if (strcmp(sProtName, "") == 0) {
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return FALSE;
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}
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}
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return TRUE;
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}
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/*
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* Download files to the user.
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* Returns:
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* 0 - All seems well
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* 1 - No transfer protocol selected
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* 2 - No files to download.
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*/
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int download(down_list *download_list)
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{
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down_list *tmpf;
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int err, maxrc = 0, Count = 0;
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char *temp, *symTo, *symFrom;
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unsigned long Size = 0;
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struct dirent *dp;
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DIR *dirp;
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struct timeval starttime, endtime;
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struct timezone tz;
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/*
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* If user has no default protocol, make sure he has one.
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*/
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if (!ForceProtocol()) {
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return 1;
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}
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/*
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* Clean users tag directory.
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*/
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WhosDoingWhat(DOWNLOAD, NULL);
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temp = calloc(PATH_MAX, sizeof(char));
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sprintf(temp, "-rf %s/%s/tag", CFG.bbs_usersdir, exitinfo.Name);
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execute_pth((char *)"rm", temp, (char *)"/dev/null", (char *)"/dev/null", (char *)"/dev/null");
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sprintf(temp, "%s/%s/tag", CFG.bbs_usersdir, exitinfo.Name);
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CheckDir(temp);
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symTo = calloc(PATH_MAX, sizeof(char));
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symFrom = calloc(PATH_MAX, sizeof(char));
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/*
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* Build symlinks into the users tag directory.
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*/
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chdir("./tag");
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for (tmpf = download_list; tmpf; tmpf = tmpf->next) {
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if (!tmpf->sent && !tmpf->failed) {
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unlink(tmpf->remote);
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sprintf(symFrom, "%s", tmpf->remote);
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sprintf(symTo, "%s", tmpf->local);
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if (symlink(symTo, symFrom)) {
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WriteError("$Can't create symlink %s %s %d", symTo, symFrom, errno);
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tmpf->failed = TRUE;
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} else {
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Syslog('b', "Created symlink %s -> %s", symFrom, symTo);
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}
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if ((access(symFrom, R_OK)) != 0) {
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/*
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* Extra check, is symlink really there?
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*/
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WriteError("Symlink %s check failed, unmarking download", symFrom);
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tmpf->failed = TRUE;
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} else {
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Count++;
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Size += tmpf->size;
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}
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}
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}
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Home();
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if (!Count) {
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/*
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* Nothing to download
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*/
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free(temp);
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free(symTo);
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free(symFrom);
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return 2;
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}
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clear();
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/* File(s) : */
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pout(YELLOW, BLACK, (char *) Language(349)); sprintf(temp, "%d", Count); PUTSTR(temp); Enter(1);
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/* Size : */
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pout( CYAN, BLACK, (char *) Language(350)); sprintf(temp, "%lu", Size); PUTSTR(temp); Enter(1);
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/* Protocol : */
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pout( CYAN, BLACK, (char *) Language(351)); sprintf(temp, "%s", sProtName); PUTSTR(temp); Enter(1);
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Syslog('+', "Download tagged files start, protocol: %s", sProtName);
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PUTSTR(sProtAdvice);
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Enter(2);
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/*
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* Wait a while before download
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*/
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sleep(2);
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if (uProtInternal) {
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for (tmpf = download_list; tmpf && (maxrc < 2); tmpf = tmpf->next) {
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}
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} else {
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gettimeofday(&starttime, &tz);
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/*
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* Transfer the files. Set the Client/Server time at the maximum
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* time the user has plus 10 minutes. The overall timer 10 seconds
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* less. Not a nice but working solution.
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*/
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alarm_set(((exitinfo.iTimeLeft + 10) * 60) - 10);
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Altime((exitinfo.iTimeLeft + 10) * 60);
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sprintf(temp, "%s/%s/tag", CFG.bbs_usersdir, exitinfo.Name);
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if ((dirp = opendir(temp)) == NULL) {
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WriteError("$Download: Can't open dir: %s", temp);
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free(temp);
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} else {
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chdir(temp);
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free(temp);
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temp = NULL;
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while ((dp = readdir(dirp)) != NULL ) {
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if (*(dp->d_name) != '.') {
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if (temp != NULL) {
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temp = xstrcat(temp, (char *)" ");
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temp = xstrcat(temp, dp->d_name);
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} else {
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temp = xstrcpy(dp->d_name);
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}
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}
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}
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if (temp != NULL) {
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if ((err = execute_str(sProtDn, temp, NULL, NULL, NULL, NULL))) {
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WriteError("$Download error %d, prot: %s", err, sProtDn);
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}
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/*
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* Restore rawport
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*/
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rawport();
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free(temp);
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} else {
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WriteError("No filebatch created");
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}
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closedir(dirp);
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}
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Altime(0);
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alarm_off();
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alarm_on();
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Home();
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gettimeofday(&endtime, &tz);
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/*
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* Checking the successfull sent files, they are missing from
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* the ./tag directory. Failed files are still there.
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*/
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Count = Size = 0;
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for (tmpf = download_list; tmpf && (maxrc < 2); tmpf = tmpf->next) {
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if (!tmpf->sent && !tmpf->failed) {
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sprintf(symTo, "./tag/%s", tmpf->remote);
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/*
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* If symlink is gone the file is sent.
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*/
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if ((access(symTo, R_OK)) != 0) {
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Syslog('+', "File %s from area %d sent ok", tmpf->remote, tmpf->area);
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tmpf->sent = TRUE;
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Size += tmpf->size;
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Count++;
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} else {
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Syslog('+', "Failed to sent %s from area %d", Tag.LFile, Tag.Area);
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}
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}
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}
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/*
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* Work out transfer rate in seconds by dividing the
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* Size of the File by the amount of time it took to download
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* the file.
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*/
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Syslog('+', "Download %s, %d", transfertime(starttime, endtime, (unsigned long)Size, TRUE), Count);
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}
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free(symTo);
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free(symFrom);
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return maxrc;
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}
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/*
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* Upload files from the user.
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* Returns:
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* 0 - All seems well
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* 1 - No transfer protocol selected.
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*/
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int upload(up_list *upload_list)
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{
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/*
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* If user has no default protocol, make sure he has one.
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*/
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if (!ForceProtocol()) {
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return 1;
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}
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return 0;
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}
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char *transfertime(struct timeval start, struct timeval end, long bytes, int sent)
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{
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static char resp[81];
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double long startms, endms, elapsed;
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startms = (start.tv_sec * 1000) + (start.tv_usec / 1000);
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endms = (end.tv_sec * 1000) + (end.tv_usec / 1000);
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elapsed = endms - startms;
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memset(&resp, 0, sizeof(resp));
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if (!elapsed)
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elapsed = 1L;
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if (bytes > 1000000)
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sprintf(resp, "%ld bytes %s in %0.3Lf seconds (%0.3Lf Kb/s)",
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bytes, sent?"sent":"received", elapsed / 1000.000, ((bytes / elapsed) * 1000) / 1024);
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else
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sprintf(resp, "%ld bytes %s in %0.3Lf seconds (%0.3Lf Kb/s)",
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bytes, sent?"sent":"received", elapsed / 1000.000, ((bytes * 1000) / elapsed) / 1024);
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return resp;
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}
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