1 /*
2 * $Id$
3 *
4 * (c) 2004 by Kalle Wallin <kaw@linux.se>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 *
19 */
21 #include <ctype.h>
22 #include <stdio.h>
23 #include <errno.h>
24 #include <stdlib.h>
25 #include <unistd.h>
26 #include <string.h>
27 #include <sys/types.h>
28 #include <sys/stat.h>
29 #include <fcntl.h>
31 #include <glib.h>
32 #include <ncurses.h>
33 #include "config.h"
34 #include "ncmpc.h"
35 #include "options.h"
36 #include "support.h"
37 #include "command.h"
38 #include "colors.h"
39 #include "conf.h"
41 #define ENABLE_OLD_SYNTAX
43 #define MAX_LINE_LENGTH 1024
44 #define COMMENT_TOKEN '#'
46 /* configuration field names */
47 #define CONF_ENABLE_COLORS "enable-colors"
48 #define CONF_AUTO_CENTER "auto-center"
49 #define CONF_WIDE_CURSOR "wide-cursor"
50 #define CONF_ENABLE_BELL "enable-bell"
51 #define CONF_KEY_DEFINITION "key"
52 #define CONF_COLOR "color"
53 #define CONF_COLOR_DEFINITION "colordef"
54 #define CONF_LIST_FORMAT "list-format"
55 #define CONF_STATUS_FORMAT "status-format"
57 /* Deprecated - configuration field names */
58 #define OLD_CONF_ENABLE_COLORS "enable_colors"
59 #define OLD_CONF_AUTO_CENTER "auto_center"
60 #define OLD_CONF_WIDE_CURSOR "wide_cursor"
61 #define CONF_COLOR_BACKGROUND "background_color"
62 #define CONF_COLOR_TITLE "title_color"
63 #define CONF_COLOR_LINE "line_color"
64 #define CONF_COLOR_LIST "list_color"
65 #define CONF_COLOR_PROGRESS "progress_color"
66 #define CONF_COLOR_STATUS "status_color"
67 #define CONF_COLOR_ALERT "alert_color"
70 typedef enum {
71 KEY_PARSER_UNKNOWN,
72 KEY_PARSER_CHAR,
73 KEY_PARSER_DEC,
74 KEY_PARSER_HEX,
75 KEY_PARSER_DONE
76 } key_parser_state_t;
78 static int
79 str2bool(char *str)
80 {
81 if( !strcasecmp(str,"no") || !strcasecmp(str,"false") ||
82 !strcasecmp(str,"off") || !strcasecmp(str,"0") )
83 return 0;
84 return 1;
85 }
87 static int
88 parse_key_value(char *str, size_t len, char **end)
89 {
90 int i, value;
91 key_parser_state_t state;
93 i=0;
94 value=0;
95 state=KEY_PARSER_UNKNOWN;
96 *end = str;
98 while( i<len && state!=KEY_PARSER_DONE )
99 {
100 int next = 0;
101 int c = str[i];
103 if( i+1<len )
104 next = str[i+1];
106 switch(state)
107 {
108 case KEY_PARSER_UNKNOWN:
109 if( c=='\'' )
110 state = KEY_PARSER_CHAR;
111 else if( c=='0' && next=='x' )
112 state = KEY_PARSER_HEX;
113 else if( isdigit(c) )
114 state = KEY_PARSER_DEC;
115 else {
116 fprintf(stderr,
117 _("Error: Unsupported key definition - %s\n"),
118 str);
119 return -1;
120 }
121 break;
122 case KEY_PARSER_CHAR:
123 if( next!='\'' )
124 {
125 fprintf(stderr,
126 _("Error: Unsupported key definition - %s\n"),
127 str);
128 return -1;
129 }
130 value = c;
131 *end = str+i+2;
132 state = KEY_PARSER_DONE;
133 break;
134 case KEY_PARSER_DEC:
135 value = (int) strtol(str+(i-1), end, 10);
136 state = KEY_PARSER_DONE;
137 break;
138 case KEY_PARSER_HEX:
139 if( !isdigit(next) )
140 {
141 fprintf(stderr,_("Error: Digit expexted after 0x - %s\n"), str);
142 return -1;
143 }
144 value = (int) strtol(str+(i+1), end, 16);
145 state = KEY_PARSER_DONE;
146 break;
147 case KEY_PARSER_DONE:
148 break;
149 }
150 i++;
151 }
153 if( *end> str+len )
154 *end = str+len;
156 return value;
157 }
159 static int
160 parse_key_definition(char *str)
161 {
162 char buf[MAX_LINE_LENGTH];
163 char *p, *end;
164 size_t len = strlen(str);
165 int i,j,key;
166 int keys[MAX_COMMAND_KEYS];
167 command_t cmd;
169 /* get the command name */
170 i=0;
171 j=0;
172 memset(buf, 0, MAX_LINE_LENGTH);
173 while( i<len && str[i]!='=' && !IS_WHITESPACE(str[i]) )
174 buf[j++] = str[i++];
175 if( (cmd=get_key_command_from_name(buf)) == CMD_NONE )
176 {
177 fprintf(stderr, _("Error: Unknown key command %s\n"), buf);
178 return -1;
179 }
181 /* skip whitespace */
182 while( i<len && (str[i]=='=' || IS_WHITESPACE(str[i])) )
183 i++;
185 /* get the value part */
186 memset(buf, 0, MAX_LINE_LENGTH);
187 strncpy(buf, str+i, len-i);
188 len = strlen(buf);
189 if( len==0 )
190 {
191 fprintf(stderr,_("Error: Incomplete key definition - %s\n"), str);
192 return -1;
193 }
195 /* parse key values */
196 i = 0;
197 key = 0;
198 len = strlen(buf);
199 p = buf;
200 end = buf+len;
201 memset(keys, 0, sizeof(int)*MAX_COMMAND_KEYS);
202 while( i<MAX_COMMAND_KEYS && p<end && (key=parse_key_value(p,len+1,&p))>=0 )
203 {
204 keys[i++] = key;
205 while( p<end && (*p==',' || *p==' ' || *p=='\t') )
206 p++;
207 len = strlen(p);
208 }
209 if( key<0 )
210 {
211 fprintf(stderr,_("Error: Bad key definition - %s\n"), str);
212 return -1;
213 }
215 return assign_keys(cmd, keys);
216 }
218 static int
219 parse_color(char *str)
220 {
221 char *name = str;
222 char *value = NULL;
223 int len,i;
225 i=0;
226 len=strlen(str);
227 /* get the color name */
228 while( i<len && str[i]!='=' && !IS_WHITESPACE(str[i]) )
229 i++;
231 /* skip whitespace */
232 while( i<len && (str[i]=='=' || IS_WHITESPACE(str[i])) )
233 {
234 str[i]='\0';
235 i++;
236 }
238 if( i<len )
239 value = str+i;
241 return colors_assign(name, value);
242 }
245 static int
246 parse_color_definition(char *str)
247 {
248 char buf[MAX_LINE_LENGTH];
249 char *p, *end, *name;
250 size_t len = strlen(str);
251 int i,j,value;
252 short color, rgb[3];
254 /* get the command name */
255 i=0;
256 j=0;
257 memset(buf, 0, MAX_LINE_LENGTH);
258 while( i<len && str[i]!='=' && !IS_WHITESPACE(str[i]) )
259 buf[j++] = str[i++];
260 color=colors_str2color(buf);
261 if( color<0 )
262 {
263 fprintf(stderr,_("Error: Bad color %s [%d]\n"), buf, color);
264 return -1;
265 }
266 name = g_strdup(buf);
268 /* skip whitespace */
269 while( i<len && (str[i]=='=' || IS_WHITESPACE(str[i])) )
270 i++;
272 /* get the value part */
273 memset(buf, 0, MAX_LINE_LENGTH);
274 strncpy(buf, str+i, len-i);
275 len = strlen(buf);
276 if( len==0 )
277 {
278 fprintf(stderr,_("Error: Incomplete color definition - %s\n"), str);
279 g_free(name);
280 return -1;
281 }
283 /* parse r,g.b values with the key definition parser */
284 i = 0;
285 value = 0;
286 len = strlen(buf);
287 p = buf;
288 end = buf+len;
289 memset(rgb, 0, sizeof(short)*3);
290 while( i<3 && p<end && (value=parse_key_value(p,len+1,&p))>=0 )
291 {
292 rgb[i++] = value;
293 while( p<end && (*p==',' || *p==' ' || *p=='\t') )
294 p++;
295 len = strlen(p);
296 }
297 if( value<0 || i!=3)
298 {
299 fprintf(stderr,_("Error: Bad color definition - %s\n"), str);
300 g_free(name);
301 return -1;
302 }
303 value = colors_define(name, rgb[0], rgb[1], rgb[2]);
304 g_free(name);
305 return value;
306 }
308 static char *
309 get_format(char *str)
310 {
311 gsize len = strlen(str);
313 if( str && str[0]=='\"' && str[len-1] == '\"' )
314 {
315 str[len-1] = '\0';
316 str++;
317 }
318 return g_strdup(str);
319 }
322 static int
323 read_rc_file(char *filename, options_t *options)
324 {
325 int fd;
326 int quit = 0;
327 int free_filename = 0;
329 if( filename==NULL )
330 return -1;
332 D("Reading configuration file %s\n", filename);
333 if( (fd=open(filename,O_RDONLY)) <0 )
334 {
335 perror(filename);
336 if( free_filename )
337 g_free(filename);
338 return -1;
339 }
341 while( !quit )
342 {
343 int i,j;
344 int len;
345 int match_found;
346 char line[MAX_LINE_LENGTH];
347 char name[MAX_LINE_LENGTH];
348 char value[MAX_LINE_LENGTH];
350 line[0] = '\0';
351 value[0] = '\0';
353 i = 0;
354 /* read a line ending with '\n' */
355 do {
356 len = read( fd, &line[i], 1 );
357 if( len == 1 )
358 i++;
359 else
360 quit = 1;
361 } while( !quit && i<MAX_LINE_LENGTH && line[i-1]!='\n' );
364 /* remove trailing whitespace */
365 line[i] = '\0';
366 i--;
367 while( i>=0 && IS_WHITESPACE(line[i]) )
368 {
369 line[i] = '\0';
370 i--;
371 }
372 len = i+1;
374 if( len>0 )
375 {
376 i = 0;
377 /* skip whitespace */
378 while( i<len && IS_WHITESPACE(line[i]) )
379 i++;
381 /* continue if this line is not a comment */
382 if( line[i] != COMMENT_TOKEN )
383 {
384 /* get the name part */
385 j=0;
386 while( i<len && line[i]!='=' && !IS_WHITESPACE(line[i]) )
387 {
388 name[j++] = line[i++];
389 }
390 name[j] = '\0';
392 /* skip '=' and whitespace */
393 while( i<len && (line[i]=='=' || IS_WHITESPACE(line[i])) )
394 i++;
396 /* get the value part */
397 j=0;
398 while( i<len )
399 {
400 value[j++] = line[i++];
401 }
402 value[j] = '\0';
404 match_found = 1;
406 /* key definition */
407 if( !strcasecmp(CONF_KEY_DEFINITION, name) )
408 {
409 parse_key_definition(value);
410 }
411 /* enable colors */
412 else if( !strcasecmp(CONF_ENABLE_COLORS, name) )
413 {
414 options->enable_colors = str2bool(value);
415 }
416 /* auto center */
417 else if( !strcasecmp(CONF_AUTO_CENTER, name) )
418 {
419 options->auto_center = str2bool(value);
420 }
421 /* color assignment */
422 else if( !strcasecmp(CONF_COLOR, name) )
423 {
424 parse_color(value);
425 }
426 #ifdef ENABLE_OLD_SYNTAX
427 /* background color */
428 else if( !strcasecmp(CONF_COLOR_BACKGROUND, name) )
429 {
430 fprintf(stderr,"%s: %s deprecated!\n", filename,name);
431 colors_assign("background", value);
432 }
433 /* color - top (title) window */
434 else if( !strcasecmp(CONF_COLOR_TITLE, name) )
435 {
436 fprintf(stderr,"%s: %s deprecated!\n", filename,name);
437 colors_assign("title", value);
438 colors_assign("title2", value);
439 }
440 /* color - line (title) window */
441 else if( !strcasecmp(CONF_COLOR_LINE, name) )
442 {
443 fprintf(stderr,"%s: %s deprecated!\n", filename,name);
444 colors_assign("line", value);
445 colors_assign("line2", value);
446 }
447 /* color - list window */
448 else if( !strcasecmp(CONF_COLOR_LIST, name) )
449 {
450 fprintf(stderr,"%s: %s deprecated!\n", filename,name);
451 colors_assign("list", value);
452 }
453 /* color - progress bar */
454 else if( !strcasecmp(CONF_COLOR_PROGRESS, name) )
455 {
456 fprintf(stderr,"%s: %s deprecated!\n", filename,name);
457 colors_assign("progressbar", value);
458 }
459 /* color - status window */
460 else if( !strcasecmp(CONF_COLOR_STATUS, name) )
461 {
462 fprintf(stderr,"%s: %s deprecated!\n", filename,name);
463 colors_assign("status", value);
464 colors_assign("status2", value);
465 }
466 /* color - alerts */
467 else if( !strcasecmp(CONF_COLOR_ALERT, name) )
468 {
469 fprintf(stderr,"%s: %s deprecated!\n", filename,name);
470 colors_assign("alert", value);
471 }
472 /* enable colors */
473 else if( !strcasecmp(OLD_CONF_ENABLE_COLORS, name) )
474 {
475 fprintf(stderr,"%s: %s deprecated - use %s!\n", filename, name, CONF_ENABLE_COLORS);
476 options->enable_colors = str2bool(value);
477 }
478 /* auto center */
479 else if( !strcasecmp(OLD_CONF_AUTO_CENTER, name) )
480 {
481 fprintf(stderr,"%s: %s deprecated - use %s!\n", filename, name, CONF_AUTO_CENTER);
482 options->auto_center = str2bool(value);
483 }
484 /* wide cursor */
485 else if( !strcasecmp(OLD_CONF_WIDE_CURSOR, name) )
486 {
487 fprintf(stderr,"%s: %s deprecated - use %s!\n", filename, name, CONF_WIDE_CURSOR);
488 options->wide_cursor = str2bool(value);
489 }
490 #endif
491 /* wide cursor */
492 else if( !strcasecmp(CONF_WIDE_CURSOR, name) )
493 {
494 options->wide_cursor = str2bool(value);
495 }
496 /* color definition */
497 else if( !strcasecmp(CONF_COLOR_DEFINITION, name) )
498 {
499 parse_color_definition(value);
500 }
501 /* list format string */
502 else if( !strcasecmp(CONF_LIST_FORMAT, name) )
503 {
504 g_free(options->list_format);
505 options->list_format = get_format(value);
506 fprintf(stderr, "list-format = \'%s\'\n", options->list_format);
507 }
508 /* status format string */
509 else if( !strcasecmp(CONF_STATUS_FORMAT, name) )
510 {
511 g_free(options->status_format);
512 options->status_format = get_format(value);
513 fprintf(stderr, "status-format = \'%s\'\n", options->status_format);
514 }
515 else
516 {
517 match_found = 0;
518 }
521 if( !match_found )
522 fprintf(stderr,
523 _("Unknown configuration parameter: %s\n"),
524 name);
525 #ifdef DEBUG
526 printf( " %s = %s %s\n",
527 name,
528 value,
529 match_found ? "" : "- UNKNOWN SETTING!" );
530 #endif
532 }
533 }
534 }
536 D("--\n\n");
538 if( free_filename )
539 g_free(filename);
541 return 0;
542 }
544 int
545 check_user_conf_dir(void)
546 {
547 int retval;
548 char *dirname = g_build_filename(g_get_home_dir(), "." PACKAGE, NULL);
550 if( g_file_test(dirname, G_FILE_TEST_IS_DIR) )
551 {
552 g_free(dirname);
553 return 0;
554 }
555 retval = mkdir(dirname, 0755);
556 g_free(dirname);
557 return retval;
558 }
560 char *
561 get_user_key_binding_filename(void)
562 {
563 return g_build_filename(g_get_home_dir(), "." PACKAGE, "keys", NULL);
564 }
567 int
568 read_configuration(options_t *options)
569 {
570 char *filename = NULL;
572 /* check for command line configuration file */
573 if( options->config_file )
574 filename = g_strdup(options->config_file);
576 /* check for user configuration ~/.ncmpc/config */
577 if( filename == NULL )
578 {
579 filename = g_build_filename(g_get_home_dir(),
580 "." PACKAGE, "config", NULL);
581 if( !g_file_test(filename, G_FILE_TEST_IS_REGULAR) )
582 {
583 g_free(filename);
584 filename = NULL;
585 }
586 }
588 /* check for global configuration SYSCONFDIR/ncmpc/config */
589 if( filename == NULL )
590 {
591 filename = g_build_filename(SYSCONFDIR, PACKAGE, "config", NULL);
592 if( !g_file_test(filename, G_FILE_TEST_IS_REGULAR) )
593 {
594 g_free(filename);
595 filename = NULL;
596 }
597 }
599 /* load configuration */
600 if( filename )
601 {
602 read_rc_file(filename, options);
603 g_free(filename);
604 filename = NULL;
605 }
607 /* check for command line key binding file */
608 if( options->key_file )
609 filename = g_strdup(options->key_file);
611 /* check for user key bindings ~/.ncmpc/keys */
612 if( filename == NULL )
613 {
614 filename = get_user_key_binding_filename();
615 if( !g_file_test(filename, G_FILE_TEST_IS_REGULAR) )
616 {
617 g_free(filename);
618 filename = NULL;
619 }
620 }
622 /* check for global key bindings SYSCONFDIR/ncmpc/keys */
623 if( filename == NULL )
624 {
625 filename = g_build_filename(SYSCONFDIR, PACKAGE, "keys", NULL);
626 if( !g_file_test(filename, G_FILE_TEST_IS_REGULAR) )
627 {
628 g_free(filename);
629 filename = NULL;
630 }
631 }
633 /* load key bindings */
634 if( filename )
635 {
636 read_rc_file(filename, options);
637 g_free(filename);
638 filename = NULL;
639 }
641 return 0;
642 }