prntfile.cpp 9.64 KB
Newer Older
1
/* prntfile.cpp */
2
// vi: tabstop=4
3
4
5

/* Synchronet file print/display routines */

6
/* $Id: prntfile.cpp,v 1.47 2020/05/26 03:07:05 rswindell Exp $ */
7
8
9
10
11

/****************************************************************************
 * @format.tab-size 4		(Plain Text/Source Code File Header)			*
 * @format.use-tabs true	(see http://www.synchro.net/ptsc_hdr.html)		*
 *																			*
12
 * Copyright Rob Swindell - http://www.synchro.net/copyright.html			*
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
 *																			*
 * 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"
40
#include "utf8.h"
41
#include "petdefs.h"
42

43
#ifndef PRINTFILE_MAX_LINE_LEN
44
#define PRINTFILE_MAX_LINE_LEN (8*1024)
45
#endif
46
#ifndef PRINTFILE_MAX_FILE_LEN
47
#define PRINTFILE_MAX_FILE_LEN (2*1024*1024)
48
#endif
49

50
51
52
53
54
/****************************************************************************/
/* Prints a file remotely and locally, interpreting ^A sequences, checks    */
/* for pauses, aborts and ANSI. 'str' is the path of the file to print      */
/* Called from functions menu and text_sec                                  */
/****************************************************************************/
55
bool sbbs_t::printfile(const char* fname, long mode, long org_cols, JSObject* obj)
56
{
57
	char* buf;
58
	char fpath[MAX_PATH+1];
59
	char* p;
rswindell's avatar
rswindell committed
60
	int file;
61
	BOOL rip=FALSE;
rswindell's avatar
rswindell committed
62
	long l,length,savcon=console;
63
64
	FILE *stream;

65
66
67
	SAFECOPY(fpath, fname);
	fexistcase(fpath);
	p=getfext(fpath);
68
	if(p!=NULL) {
69
		if(stricmp(p,".rip")==0) {
rswindell's avatar
rswindell committed
70
			rip=TRUE;
rswindell's avatar
rswindell committed
71
			mode|=P_NOPAUSE;
72
73
		} else if(stricmp(p, ".seq") == 0) {
			mode |= P_PETSCII;
74
75
		} else if(stricmp(p, ".utf8") == 0) {
			mode |= P_UTF8;
rswindell's avatar
rswindell committed
76
		}
77
	}
78

79
	if(mode&P_NOABORT || rip) {
80
81
		if(online==ON_REMOTE && console&CON_R_ECHO) {
			rioctl(IOCM|ABORT);
rswindell's avatar
rswindell committed
82
83
84
85
			rioctl(IOCS|ABORT); 
		}
		sys_status&=~SS_ABORT; 
	}
86

rswindell's avatar
rswindell committed
87
88
	if(!(mode&P_NOCRLF) && row > 0 && !rip) {
		newline();
89
	}
90

91
	if((stream=fnopen(&file,fpath,O_RDONLY|O_DENYNONE))==NULL) {
92
93
		if(!(mode&P_NOERROR)) {
			lprintf(LOG_NOTICE,"!Error %d (%s) opening: %s"
94
				,errno,strerror(errno),fpath);
95
			bputs(text[FileNotFound]);
96
			if(SYSOP) bputs(fpath);
97
98
99
			CRLF;
		}
		return false; 
rswindell's avatar
rswindell committed
100
	}
101

102
	length=(long)filelength(file);
103
	if(length < 1) {
rswindell's avatar
rswindell committed
104
		fclose(stream);
105
106
107
108
109
		if(length < 0) {
			errormsg(WHERE,ERR_CHK,fpath,length);
			return false;
		}
		return true;
rswindell's avatar
rswindell committed
110
	}
111

112
	if((mode&P_OPENCLOSE) && length <= PRINTFILE_MAX_FILE_LEN) {
113
114
115
116
117
118
119
120
121
122
123
124
125
		if((buf=(char*)malloc(length+1L))==NULL) {
			fclose(stream);
			errormsg(WHERE,ERR_ALLOC,fpath,length+1L);
			return false; 
		}
		l=lread(file,buf,length);
		fclose(stream);
		if(l!=length)
			errormsg(WHERE,ERR_READ,fpath,length);
		else {
			buf[l]=0;
			if((mode&P_UTF8) && !term_supports(UTF8))
				utf8_normalize_str(buf);
126
			putmsg(buf,mode,org_cols, obj);
127
128
129
		}
		free(buf);
	} else {	// Line-at-a-time mode
130
131
		ulong sys_status_sav = sys_status;
		enum output_rate output_rate = cur_output_rate;
132
		uint tmpatr = curatr;
133
134
		ulong orgcon = console;
		attr_sp = 0;	/* clear any saved attributes */
135
136
		if(!(mode&P_SAVEATR))
			attr(LIGHTGRAY);
137
138
		if(mode&P_NOPAUSE)
			sys_status |= SS_PAUSEOFF;
139
140
141
142
143
144
145
146
		if(length > PRINTFILE_MAX_LINE_LEN)
			length = PRINTFILE_MAX_LINE_LEN;
		if((buf=(char*)malloc(length+1L))==NULL) {
			fclose(stream);
			errormsg(WHERE,ERR_ALLOC,fpath,length+1L);
			return false; 
		}
		while(!feof(stream) && !msgabort()) {
147
			if(fgets(buf, length + 1, stream) == NULL)
148
149
150
				break;
			if((mode&P_UTF8) && !term_supports(UTF8))
				utf8_normalize_str(buf);
151
			if(putmsgfrag(buf, &mode, org_cols, obj) != '\0') // early-EOF?
152
				break;
153
154
		}
		free(buf);
rswindell's avatar
rswindell committed
155
		fclose(stream);
156
157
		if(!(mode&P_SAVEATR)) {
			console = orgcon;
158
			attr(tmpatr);
159
160
161
162
163
164
165
166
167
168
		}
		if(!(mode&P_NOATCODES) && cur_output_rate != output_rate)
			set_output_rate(output_rate);
		if(mode&P_PETSCII)
			outcom(PETSCII_UPPERLOWER);
		attr_sp=0;	/* clear any saved attributes */

		/* Restore original settings of Forced Pause On/Off */
		sys_status &= ~(SS_PAUSEOFF|SS_PAUSEON);
		sys_status |= (sys_status_sav&(SS_PAUSEOFF|SS_PAUSEON));
rswindell's avatar
rswindell committed
169
	}
170

171
	if((mode&P_NOABORT || rip) && online==ON_REMOTE) {
172
		SYNC;
rswindell's avatar
rswindell committed
173
174
		rioctl(IOSM|ABORT); 
	}
175
176
177
	if(rip)
		ansi_getlines();
	console=savcon;
178
	return true;
rswindell's avatar
rswindell committed
179
}
180

181
bool sbbs_t::printtail(const char* fname, int lines, long mode, long org_cols, JSObject* obj)
182
{
rswindell's avatar
rswindell committed
183
	char*	buf;
184
	char	fpath[MAX_PATH+1];
rswindell's avatar
rswindell committed
185
	char*	p;
186
	FILE*	fp;
rswindell's avatar
rswindell committed
187
188
	int		file,cur=0;
	long	length,l;
189

190
191
	SAFECOPY(fpath, fname);
	fexistcase(fpath);
192
193
194
	if(mode&P_NOABORT) {
		if(online==ON_REMOTE) {
			rioctl(IOCM|ABORT);
rswindell's avatar
rswindell committed
195
196
197
198
			rioctl(IOCS|ABORT); 
		}
		sys_status&=~SS_ABORT; 
	}
rswindell's avatar
rswindell committed
199
200
	if(!(mode&P_NOCRLF) && row > 0) {
		newline();
rswindell's avatar
rswindell committed
201
	}
202
	if((fp=fnopen(&file,fpath,O_RDONLY|O_DENYNONE))==NULL) {
203
204
		if(!(mode&P_NOERROR)) {
			lprintf(LOG_NOTICE,"!Error %d (%s) opening: %s"
205
				,errno,strerror(errno),fpath);
206
			bputs(text[FileNotFound]);
207
			if(SYSOP) bputs(fpath);
208
209
210
			CRLF;
		}
		return false; 
rswindell's avatar
rswindell committed
211
	}
212
	length=(long)filelength(file);
rswindell's avatar
rswindell committed
213
	if(length<0) {
214
		fclose(fp);
215
		errormsg(WHERE,ERR_CHK,fpath,length);
216
		return false;
rswindell's avatar
rswindell committed
217
	}
218
219
220
221
	if(length > lines * PRINTFILE_MAX_LINE_LEN) {
		length = lines * PRINTFILE_MAX_LINE_LEN; 
		fseek(fp, -length, SEEK_END);
	}
deuce's avatar
deuce committed
222
	if((buf=(char*)malloc(length+1L))==NULL) {
223
		fclose(fp);
224
		errormsg(WHERE,ERR_ALLOC,fpath,length+1L);
225
		return false; 
rswindell's avatar
rswindell committed
226
	}
227
228
	l=fread(buf, sizeof(char), length, fp);
	fclose(fp);
rswindell's avatar
rswindell committed
229
	if(l!=length)
230
		errormsg(WHERE,ERR_READ,fpath,length);
rswindell's avatar
rswindell committed
231
232
233
234
235
236
237
238
239
240
241
242
	else {
		buf[l]=0;
		p=(buf+l)-1;
		if(*p==LF) p--;
		while(*p && p>buf) {
			if(*p==LF)
				cur++;
			if(cur>=lines) {
				p++;
				break; 
			}
			p--; 
rswindell's avatar
rswindell committed
243
		}
244
		putmsg(p,mode,org_cols, obj);
rswindell's avatar
rswindell committed
245
	}
246
247
	if(mode&P_NOABORT && online==ON_REMOTE) {
		SYNC;
rswindell's avatar
rswindell committed
248
249
		rioctl(IOSM|ABORT); 
	}
deuce's avatar
deuce committed
250
	free(buf);
251
	return true;
252
253
254
}

/****************************************************************************/
255
/* Displays a menu file (e.g. from the text/menu directory)                 */
256
257
/* Pass a code including wildcards (* or ?) to display a randomly-chosen	*/
/* file matching the pattern in 'code'										*/
258
/****************************************************************************/
259
bool sbbs_t::menu(const char *code, long mode, JSObject* obj)
260
{
261
262
263
    char path[MAX_PATH+1];
	const char *next= "msg";
	const char *last = "asc";
264

265
266
267
	if(strcspn(code, "*?") != strlen(code))
		return random_menu(code, mode, obj);

268
269
	sys_status&=~SS_ABORT;
	if(menu_file[0])
270
		SAFECOPY(path,menu_file);
271
	else {
rswindell's avatar
rswindell committed
272
		long term = term_supports();
273
274
275
276
277
278
279
280
281
282
283
284
		do {
			if((term&RIP) && menu_exists(code, "rip", path))
				break;
			if((term&(ANSI|COLOR)) == ANSI && menu_exists(code, "mon", path))
				break;
			if((term&ANSI) && menu_exists(code, "ans", path))
				break;
			if((term&PETSCII) && menu_exists(code, "seq", path))
				break;
			if(term&NO_EXASCII) {
				next = "asc";
				last = "msg";
rswindell's avatar
rswindell committed
285
			}
286
287
288
289
			if(menu_exists(code, next, path))
				break;
			menu_exists(code, last, path);
		} while(0);
290
	}
291

292
	mode |= P_OPENCLOSE | P_CPM_EOF;
293
294
	if(column == 0)
		mode |= P_NOCRLF;
295
	return printfile(path, mode, /* org_cols: */0, obj);
296
297
}

298
bool sbbs_t::menu_exists(const char *code, const char* ext, char* path)
299
{
300
301
302
	char pathbuf[MAX_PATH+1];
	if(path == NULL)
		path = pathbuf;
303

304
305
306
307
308
309
310
311
312
	if(menu_file[0]) {
		strncpy(path, menu_file, MAX_PATH);
		return fexistcase(path) ? true : false;
	}

	/* Either <menu>.asc or <menu>.msg is required */
	if(ext == NULL)
		return menu_exists(code, "asc", path)
			|| menu_exists(code, "msg", path);
313

314
315
316
317
318
319
320
	char prefix[MAX_PATH];
	if(isfullpath(code))
		SAFECOPY(prefix, code);
	else {
		backslash(menu_dir);
		SAFEPRINTF3(prefix, "%smenu/%s%s", cfg.text_dir, menu_dir, code);
	}
321
	safe_snprintf(path, MAX_PATH, "%s.%lucol.%s", prefix, cols, ext);
rswindell's avatar
rswindell committed
322
323
	if(fexistcase(path))
		return true;
324
	safe_snprintf(path, MAX_PATH, "%s.%s", prefix, ext);
deuce's avatar
deuce committed
325
326
	return fexistcase(path) ? true : false;
}
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

/****************************************************************************/
/* Displays a random menu file (e.g. from the text/menu directory)          */
/****************************************************************************/
bool sbbs_t::random_menu(const char *name, long mode, JSObject* obj)
{
	char path[MAX_PATH + 1];
	glob_t g = {0};
	str_list_t names = NULL;

	SAFEPRINTF2(path, "%smenu/%s", cfg.text_dir, name);
	if(glob(path, GLOB_NOESCAPE|GLOB_MARK, NULL, &g) != 0) {
		return false;
	}
	for(size_t i = 0; i < g.gl_pathc; i++) {
		char* ext = getfext(g.gl_pathv[i]);
		if(ext == NULL)
			continue;
		*ext = 0;
		strListPush(&names, g.gl_pathv[i]);
	}
	globfree(&g);
	strListDedupe(&names, /* case_sensitive: */true);
	bool result = false;
	size_t i = sbbs_random(strListCount(names));
	if(menu_exists(names[i], NULL, path)) {
		result = menu(names[i], mode, obj);
	}
	strListFree(&names);
	return result;
}