download.cpp 11.7 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
/* download.cpp */

/* Synchronet file download routines */

/* $Id$ */

/****************************************************************************
 * @format.tab-size 4		(Plain Text/Source Code File Header)			*
 * @format.use-tabs true	(see http://www.synchro.net/ptsc_hdr.html)		*
 *																			*
 * Copyright 2000 Rob Swindell - http://www.synchro.net/copyright.html		*
 *																			*
 * This program 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			*
 * of the License, or (at your option) any later version.					*
 * See the GNU General Public License for more details: gpl.txt or			*
 * http://www.fsf.org/copyleft/gpl.html										*
 *																			*
 * Anonymous FTP access to the most recent released source is available at	*
 * ftp://vert.synchro.net, ftp://cvs.synchro.net and ftp://ftp.synchro.net	*
 *																			*
 * Anonymous CVS access to the development source and modification history	*
 * is available at cvs.synchro.net:/cvsroot/sbbs, example:					*
 * cvs -d :pserver:anonymous@cvs.synchro.net:/cvsroot/sbbs login			*
 *     (just hit return, no password is necessary)							*
 * cvs -d :pserver:anonymous@cvs.synchro.net:/cvsroot/sbbs checkout src		*
 *																			*
 * For Synchronet coding style and modification guidelines, see				*
 * http://www.synchro.net/source.html										*
 *																			*
 * You are encouraged to submit any modifications (preferably in Unix diff	*
 * format) via e-mail to mods@synchro.net									*
 *																			*
 * Note: If this box doesn't appear square, then you need to fix your tabs.	*
 ****************************************************************************/

#include "sbbs.h"

/****************************************************************************/
/* Updates downloader, uploader and downloaded file data                    */
/* Must have offset, dir and name fields filled prior to call.              */
/****************************************************************************/
void sbbs_t::downloadfile(file_t* f)
{
46 47 48 49 50 51
    char	str[256],fname[13];
	char 	tmp[512];
    int		i,file;
	long	length,mod;
    ulong	l;
	user_t	uploader;
52 53 54 55 56 57 58

	getfiledat(&cfg,f); /* Get current data - right after download */
	if((length=f->size)<0L)
		length=0L;
	logon_dlb+=length;  /* Update 'this call' stats */
	logon_dls++;
	bprintf(text[FileNBytesSent],f->name,ultoac(length,tmp));
59 60 61
	sprintf(str,"%s downloaded %s from %s %s"
		,useron.alias
		,f->name,cfg.lib[cfg.dir[f->dir]->lib]->sname
62 63 64 65 66 67 68 69 70 71 72 73
		,cfg.dir[f->dir]->sname);
	logline("D-",str);
	/****************************/
	/* Update Downloader's Info */
	/****************************/
	useron.dls=(ushort)adjustuserrec(&cfg,useron.number,U_DLS,5,1);
	useron.dlb=adjustuserrec(&cfg,useron.number,U_DLB,10,length);
	if(!(cfg.dir[f->dir]->misc&DIR_FREE) && !(useron.exempt&FLAG('D')))
		subtract_cdt(&cfg,&useron,f->cdt);
	/**************************/
	/* Update Uploader's Info */
	/**************************/
74
	i=matchuser(&cfg,f->uler,TRUE /*sysop_alias*/);
75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101
	uploader.number=i;
	getuserdat(&cfg,&uploader);
	if(i && i!=useron.number && uploader.firston<f->dateuled) {
		l=f->cdt;
		if(!(cfg.dir[f->dir]->misc&DIR_CDTDL))	/* Don't give credits on d/l */
			l=0;
		if(cfg.dir[f->dir]->misc&DIR_CDTMIN && cur_cps) { /* Give min instead of cdt */
			mod=((ulong)(l*(cfg.dir[f->dir]->dn_pct/100.0))/cur_cps)/60;
			adjustuserrec(&cfg,i,U_MIN,10,mod);
			sprintf(tmp,"%lu minute",mod);
			sprintf(str,text[DownloadUserMsg]
				,!strcmp(cfg.dir[f->dir]->code,"TEMP") ? temp_file : f->name
				,!strcmp(cfg.dir[f->dir]->code,"TEMP") ? text[Partially] : nulstr
				,useron.alias,tmp); }
		else {
			mod=(ulong)(l*(cfg.dir[f->dir]->dn_pct/100.0));
			adjustuserrec(&cfg,i,U_CDT,10,mod);
			ultoac(mod,tmp);
			sprintf(str,text[DownloadUserMsg]
				,!strcmp(cfg.dir[f->dir]->code,"TEMP") ? temp_file : f->name
				,!strcmp(cfg.dir[f->dir]->code,"TEMP") ? text[Partially] : nulstr
				,useron.alias,tmp); }
		putsmsg(&cfg,i,str); }
	/*******************/
	/* Update IXB File */
	/*******************/
	f->datedled=time(NULL);
102
	sprintf(str,"%s%s.ixb",cfg.dir[f->dir]->data_dir,cfg.dir[f->dir]->code);
103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138
	if((file=nopen(str,O_RDWR))==-1) {
		errormsg(WHERE,ERR_OPEN,str,O_RDWR);
		return; }
	length=filelength(file);
	if(length%F_IXBSIZE) {
		close(file);
		errormsg(WHERE,ERR_LEN,str,length);
		return; }
	strcpy(fname,f->name);
	for(i=8;i<12;i++)   /* Turn FILENAME.EXT into FILENAMEEXT */
		fname[i]=fname[i+1];
	for(l=0;l<(ulong)length;l+=F_IXBSIZE) {
		read(file,str,F_IXBSIZE);      /* Look for the filename in the IXB file */
		str[11]=0;
		if(!strcmp(fname,str)) break; }
	if(l>=(ulong)length) {
		close(file);
		errormsg(WHERE,ERR_CHK,f->name,0);
		return; }
	lseek(file,l+18,SEEK_SET);
	write(file,&f->datedled,4);  /* Write the current time stamp for datedled */
	close(file);
	/*******************/
	/* Update DAT File */
	/*******************/
	f->timesdled++;
	putfiledat(&cfg,f);
	/******************************************/
	/* Update User to User index if necessary */
	/******************************************/
	if(f->dir==cfg.user_dir) {
		rmuserxfers(&cfg,0,useron.number,f->name);
		if(!getuserxfers(0,0,f->name)) { /* check if any ixt entries left */
			sprintf(str,"%s%s",f->altpath>0 && f->altpath<=cfg.altpaths ?
				cfg.altpath[f->altpath-1] : cfg.dir[f->dir]->path,unpadfname(f->name,tmp));
			remove(str);
139 140 141
			removefiledat(&cfg,f); 
		} 
	}
142 143 144 145 146 147 148 149
}

/****************************************************************************/
/* This function is called when a file is unsuccessfully downloaded.        */
/* It logs the tranfer time and checks for possible leech protocol use.     */
/****************************************************************************/
void sbbs_t::notdownloaded(ulong size, time_t start, time_t end)
{
150 151
    char	str[256],tmp2[256];
	char 	tmp[512];
152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169

	sprintf(str,"Estimated Time: %s  Transfer Time: %s"
		,sectostr(cur_cps ? size/cur_cps : 0,tmp)
		,sectostr((uint)end-start,tmp2));
	logline(nulstr,str);
	if(cfg.leech_pct && cur_cps                 /* leech detection */
		&& end-start>=cfg.leech_sec
		&& end-start>=(double)(size/cur_cps)*(double)cfg.leech_pct/100.0) {
		sprintf(str,"Possible use of leech protocol (leech=%u  downloads=%u)"
			,useron.leech+1,useron.dls);
		errorlog(str);
		useron.leech=(uchar)adjustuserrec(&cfg,useron.number,U_LEECH,2,1); }
}


/****************************************************************************/
/* Handles start and stop routines for transfer protocols                   */
/****************************************************************************/
rswindell's avatar
rswindell committed
170
int sbbs_t::protocol(char *cmdline, bool cd)
171
{
rswindell's avatar
rswindell committed
172
	char	protlog[256],*p;
173
	char	msg[256];
174 175 176
    int		i;
	FILE*	stream;

177 178
	sprintf(protlog,"%sPROTOCOL.LOG",cfg.node_dir);
	remove(protlog);                        /* Deletes the protocol log */
179 180 181 182 183 184 185 186 187 188 189 190
	if(useron.misc&AUTOHANG)
		autohang=1;
	else
		autohang=yesno(text[HangUpAfterXferQ]);
	if(sys_status&SS_ABORT) {				/* if ctrl-c */
		autohang=0;
		return(-1); }
	bputs(text[StartXferNow]);
	RIOSYNC(0);
	//lprintf("%s",cmdline);
	if(cd) 
		p=cfg.temp_dir;
rswindell's avatar
rswindell committed
191 192
	else
		p=NULL;
rswindell's avatar
rswindell committed
193
	sprintf(msg,"Transferring %s",cmdline);
194 195
	spymsg(msg);
	sys_status|=SS_FILEXFER;
196 197 198
	i=external(cmdline
		,EX_OUTL
#ifdef __unix__		/* file xfer progs use stdio on Unix */
199
		|EX_INR|EX_OUTR|EX_BIN
200 201
#endif
		,p);
202
	sys_status&=~SS_FILEXFER;
203 204 205 206
	if(online==ON_REMOTE)
		rioctl(IOFB);

	// Save DSZLOG to logfile
207
	if((stream=fnopen(NULL,protlog,O_RDONLY))!=NULL) {
208
		while(!feof(stream) && !ferror(stream)) {
209
			if(!fgets(protlog,sizeof(protlog)-1,stream))
210
				break;
211 212
			truncsp(protlog);
			logline(nulstr,protlog);
213 214 215 216 217 218 219 220 221 222 223 224 225 226
		}
		fclose(stream);
	}

	CRLF;
	if(autohang) sys_status|=SS_PAUSEOFF;	/* Pause off after download */
	return(i);
}

/****************************************************************************/
/* Invokes the timed auto-hangup after transfer routine                     */
/****************************************************************************/
void sbbs_t::autohangup()
{
227 228
    char	a,c,k;
	char 	tmp[512];
229 230 231 232 233 234 235 236 237 238 239 240 241 242

	if(online!=ON_REMOTE)
		return;
	SYNC;
	sys_status&=~SS_PAUSEOFF;		/* turn pause back on */
	rioctl(IOFI);
	if(!autohang) return;
	lncntr=0;
	bputs(text[Disconnecting]);
	attr(GREEN);
	outchar('[');
	for(c=9,a=0;c>-1 && online && !a;c--) {
		checkline();
		attr(LIGHTGRAY|HIGH);
243
		bputs(ultoa(c,tmp,10));
244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269
		attr(GREEN);
		outchar(']');
		while((k=inkey(0))!=0 && online) {
			if(toupper(k)=='H') {
				c=0;
				break; }
			if(toupper(k)=='A') {
				a=1;
				break; } }
		mswait(DELAY_AUTOHG);
		if(!a) {
			outchar(BS);
			outchar(BS); } }
	if(c==-1) {
		bputs(text[Disconnected]);
		hangup(); }
	else
		CRLF;
}

/****************************************************************************/
/* Checks dsz compatible log file for errors in transfer                    */
/* Returns 1 if the file in the struct file_t was successfuly transfered    */
/****************************************************************************/
bool sbbs_t::checkprotlog(file_t* f)
{
270 271 272 273
	char	str[256],size[128];
	char 	tmp[512];
    int		file;
    FILE *	stream;
274 275 276 277 278

	sprintf(str,"%sPROTOCOL.LOG",cfg.node_dir);
	if((stream=fnopen(&file,str,O_RDONLY))==NULL) {
		bprintf(text[FileNotSent],f->name);
		if(f->dir<cfg.total_dirs)
279 280
			sprintf(str,"%s attempted to download %s (%s) from %s %s"
				,useron.alias
281 282 283
				,f->name,ultoac(f->size,size)
				,cfg.lib[cfg.dir[f->dir]->lib]->sname,cfg.dir[f->dir]->sname);
		else if(f->dir==cfg.total_dirs)
284 285
			sprintf(str,"%s attempted to download QWK packet"
				,useron.alias);
286
		else if(f->dir==cfg.total_dirs+1)
287 288
			sprintf(str,"%s attempted to download attached file: %s"
				,useron.alias,f->name);
289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309
		logline("D!",str);
		return(0); }
	unpadfname(f->name,tmp);
	if(tmp[strlen(tmp)-1]=='.')     /* DSZ log uses FILE instead of FILE. */
		tmp[strlen(tmp)-1]=0;       /* when there isn't an extension.     */
	strupr(tmp);
	while(!ferror(stream)) {
		if(!fgets(str,256,stream))
			break;
		if(str[strlen(str)-2]==CR)
			str[strlen(str)-2]=0;       /* chop off CRLF */
		strupr(str);
		if(strstr(str,tmp)) {   /* Only check for name, Bimodem doesn't put path */
	//        logline(nulstr,str); now handled by protocol()
			if(str[0]=='E' || str[0]=='L' || (str[6]==SP && str[7]=='0'))
				break;          /* E for Error or L for Lost Carrier */
			fclose(stream);     /* or only sent 0 bytes! */
			return(true); } }
	fclose(stream);
	bprintf(text[FileNotSent],f->name);
	if(f->dir<cfg.total_dirs)
310
		sprintf(str,"%s attempted to download %s (%s) from %s %s"
311
			,useron.alias
312 313 314 315
			,f->name
			,ultoac(f->size,tmp)
			,cfg.lib[cfg.dir[f->dir]->lib]->sname
			,cfg.dir[f->dir]->sname);
316
	else
317
		sprintf(str,"%s attempted to download QWK packet",useron.alias);
318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360
	logline("D!",str);
	return(false);
}



/************************************************************************/
/* Wait (for a limited period of time) for sequential dev to become 	*/
/* available for file retrieval 										*/
/************************************************************************/
void sbbs_t::seqwait(uint devnum)
{
	char loop=0;
	int i;
	time_t start;
	node_t node;

	if(!devnum)
		return;
	for(start=now=time(NULL);online && now-start<90;now=time(NULL)) {
		if(msgabort())				/* max wait ^^^^ sec */
			break;
		getnodedat(cfg.node_num,&thisnode,1);	/* open and lock this record */
		for(i=1;i<=cfg.sys_nodes;i++) {
			if(i==cfg.node_num) continue;
			getnodedat(i,&node,1);
			if((node.status==NODE_INUSE || node.status==NODE_QUIET)
				&& node.action==NODE_RFSD && node.aux==devnum) {
				putnodedat(i,&node);
				break; }
			putnodedat(i,&node); }
		if(i>cfg.sys_nodes) {
			thisnode.action=NODE_RFSD;
			thisnode.aux=devnum;
			putnodedat(cfg.node_num,&thisnode);	/* write devnum, unlock, and ret */
			return; }
		putnodedat(cfg.node_num,&thisnode);
		if(!loop)
			bprintf(text[WaitingForDeviceN],devnum);
		loop=1;
		mswait(100); }

}