1 /*
2 * (c) 2004 by Kalle Wallin (kaw@linux.se)
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 *
17 */
19 #include <ctype.h>
20 #include <stdio.h>
21 #include <errno.h>
22 #include <stdlib.h>
23 #include <unistd.h>
24 #include <string.h>
25 #include <sys/types.h>
26 #include <sys/stat.h>
27 #include <fcntl.h>
29 #include <glib.h>
30 #include <ncurses.h>
32 #include "config.h"
33 #include "options.h"
34 #include "support.h"
35 #include "command.h"
36 #include "colors.h"
37 #include "conf.h"
39 #ifdef DEBUG
40 #define D(x) x
41 #else
42 #define D(x)
43 #endif
45 #define ENABLE_OLD_COLOR_SYNTAX
47 #define MAX_LINE_LENGTH 1024
48 #define COMMENT_TOKEN '#'
50 /* configuration field names */
51 #define CONF_ENABLE_COLORS "enable_colors"
52 #define CONF_AUTO_CENTER "auto_center"
53 #define CONF_WIDE_CURSOR "wide_cursor"
54 #define CONF_KEY_DEFINITION "key"
55 #define CONF_COLOR "color"
56 #define CONF_COLOR_DEFINITION "colordef"
58 /* Deprecated - configuration field names */
59 #define CONF_COLOR_BACKGROUND "background_color"
60 #define CONF_COLOR_TITLE "title_color"
61 #define CONF_COLOR_LINE "line_color"
62 #define CONF_COLOR_LIST "list_color"
63 #define CONF_COLOR_PROGRESS "progress_color"
64 #define CONF_COLOR_STATUS "status_color"
65 #define CONF_COLOR_ALERT "alert_color"
68 typedef enum {
69 KEY_PARSER_UNKNOWN,
70 KEY_PARSER_CHAR,
71 KEY_PARSER_DEC,
72 KEY_PARSER_HEX,
73 KEY_PARSER_DONE
74 } key_parser_state_t;
76 static int
77 str2bool(char *str)
78 {
79 if( !strcasecmp(str,"no") || !strcasecmp(str,"false") ||
80 !strcasecmp(str,"off") || !strcasecmp(str,"0") )
81 return 0;
82 return 1;
83 }
85 static int
86 parse_key_value(char *str, size_t len, char **end)
87 {
88 int i, value;
89 key_parser_state_t state;
91 i=0;
92 value=0;
93 state=KEY_PARSER_UNKNOWN;
94 *end = str;
96 while( i<len && state!=KEY_PARSER_DONE )
97 {
98 int next = 0;
99 int c = str[i];
101 if( i+1<len )
102 next = str[i+1];
104 switch(state)
105 {
106 case KEY_PARSER_UNKNOWN:
107 if( c=='\'' )
108 state = KEY_PARSER_CHAR;
109 else if( c=='0' && next=='x' )
110 state = KEY_PARSER_HEX;
111 else if( isdigit(c) )
112 state = KEY_PARSER_DEC;
113 else {
114 fprintf(stderr, "Error: Unsupported key definition - %s\n", str);
115 return -1;
116 }
117 break;
118 case KEY_PARSER_CHAR:
119 if( next!='\'' )
120 {
121 fprintf(stderr, "Error: Unsupported key definition - %s\n", str);
122 return -1;
123 }
124 value = c;
125 *end = str+i+2;
126 state = KEY_PARSER_DONE;
127 break;
128 case KEY_PARSER_DEC:
129 value = (int) strtol(str+(i-1), end, 10);
130 state = KEY_PARSER_DONE;
131 break;
132 case KEY_PARSER_HEX:
133 if( !isdigit(next) )
134 {
135 fprintf(stderr, "Error: Digit expexted after 0x - %s\n", str);
136 return -1;
137 }
138 value = (int) strtol(str+(i+1), end, 16);
139 state = KEY_PARSER_DONE;
140 break;
141 case KEY_PARSER_DONE:
142 break;
143 }
144 i++;
145 }
147 if( *end> str+len )
148 *end = str+len;
150 return value;
151 }
153 static int
154 parse_key_definition(char *str)
155 {
156 char buf[MAX_LINE_LENGTH];
157 char *p, *end;
158 size_t len = strlen(str);
159 int i,j,key;
160 int keys[MAX_COMMAND_KEYS];
161 command_t cmd;
163 /* get the command name */
164 i=0;
165 j=0;
166 memset(buf, 0, MAX_LINE_LENGTH);
167 while( i<len && str[i]!='=' && !IS_WHITESPACE(str[i]) )
168 buf[j++] = str[i++];
169 if( (cmd=get_key_command_from_name(buf)) == CMD_NONE )
170 {
171 fprintf(stderr, "Error: Unknown key command %s\n", buf);
172 return -1;
173 }
175 /* skip whitespace */
176 while( i<len && (str[i]=='=' || IS_WHITESPACE(str[i])) )
177 i++;
179 /* get the value part */
180 memset(buf, 0, MAX_LINE_LENGTH);
181 strncpy(buf, str+i, len-i);
182 len = strlen(buf);
183 if( len==0 )
184 {
185 fprintf(stderr,"Error: Incomplete key definition - %s\n", str);
186 return -1;
187 }
189 /* parse key values */
190 i = 0;
191 key = 0;
192 len = strlen(buf);
193 p = buf;
194 end = buf+len;
195 memset(keys, 0, sizeof(int)*MAX_COMMAND_KEYS);
196 while( i<MAX_COMMAND_KEYS && p<end && (key=parse_key_value(p,len+1,&p))>=0 )
197 {
198 keys[i++] = key;
199 while( p<end && (*p==',' || *p==' ' || *p=='\t') )
200 p++;
201 len = strlen(p);
202 }
203 if( key<0 )
204 {
205 fprintf(stderr,"Error: Bad key definition - %s\n", str);
206 return -1;
207 }
209 return assign_keys(cmd, keys);
210 }
212 static int
213 parse_color(char *str)
214 {
215 char *name = str;
216 char *value = NULL;
217 int len,i;
219 i=0;
220 len=strlen(str);
221 /* get the color name */
222 while( i<len && str[i]!='=' && !IS_WHITESPACE(str[i]) )
223 i++;
225 /* skip whitespace */
226 while( i<len && (str[i]=='=' || IS_WHITESPACE(str[i])) )
227 {
228 str[i]='\0';
229 i++;
230 }
232 if( i<len )
233 value = str+i;
235 return colors_assign(name, value);
236 }
239 static int
240 parse_color_definition(char *str)
241 {
242 char buf[MAX_LINE_LENGTH];
243 char *p, *end, *name;
244 size_t len = strlen(str);
245 int i,j,value;
246 short color, rgb[3];
248 /* get the command name */
249 i=0;
250 j=0;
251 memset(buf, 0, MAX_LINE_LENGTH);
252 while( i<len && str[i]!='=' && !IS_WHITESPACE(str[i]) )
253 buf[j++] = str[i++];
254 color=colors_str2color(buf);
255 if( color<0 )
256 {
257 fprintf(stderr, "Error: Bad color %s [%d]\n", buf, color);
258 return -1;
259 }
260 name = g_strdup(buf);
262 /* skip whitespace */
263 while( i<len && (str[i]=='=' || IS_WHITESPACE(str[i])) )
264 i++;
266 /* get the value part */
267 memset(buf, 0, MAX_LINE_LENGTH);
268 strncpy(buf, str+i, len-i);
269 len = strlen(buf);
270 if( len==0 )
271 {
272 fprintf(stderr,"Error: Incomplete color definition - %s\n", str);
273 g_free(name);
274 return -1;
275 }
277 /* parse r,g.b values with the key definition parser */
278 i = 0;
279 value = 0;
280 len = strlen(buf);
281 p = buf;
282 end = buf+len;
283 memset(rgb, 0, sizeof(short)*3);
284 while( i<3 && p<end && (value=parse_key_value(p,len+1,&p))>=0 )
285 {
286 rgb[i++] = value;
287 while( p<end && (*p==',' || *p==' ' || *p=='\t') )
288 p++;
289 len = strlen(p);
290 }
291 if( value<0 || i!=3)
292 {
293 fprintf(stderr,"Error: Bad color definition - %s\n", str);
294 g_free(name);
295 return -1;
296 }
297 value = colors_define(name, rgb[0], rgb[1], rgb[2]);
298 g_free(name);
299 return value;
300 }
303 static int
304 read_rc_file(char *filename, options_t *options)
305 {
306 int fd;
307 int quit = 0;
308 int free_filename = 0;
310 if( filename==NULL )
311 return -1;
313 D(printf("Reading configuration file %s\n", filename));
314 if( (fd=open(filename,O_RDONLY)) <0 )
315 {
316 perror(filename);
317 if( free_filename )
318 g_free(filename);
319 return -1;
320 }
322 while( !quit )
323 {
324 int i,j;
325 int len;
326 int match_found;
327 char line[MAX_LINE_LENGTH];
328 char name[MAX_LINE_LENGTH];
329 char value[MAX_LINE_LENGTH];
331 line[0] = '\0';
332 value[0] = '\0';
334 i = 0;
335 /* read a line ending with '\n' */
336 do {
337 len = read( fd, &line[i], 1 );
338 if( len == 1 )
339 i++;
340 else
341 quit = 1;
342 } while( !quit && i<MAX_LINE_LENGTH && line[i-1]!='\n' );
345 /* remove trailing whitespace */
346 line[i] = '\0';
347 i--;
348 while( i>=0 && IS_WHITESPACE(line[i]) )
349 {
350 line[i] = '\0';
351 i--;
352 }
353 len = i+1;
355 if( len>0 )
356 {
357 i = 0;
358 /* skip whitespace */
359 while( i<len && IS_WHITESPACE(line[i]) )
360 i++;
362 /* continue if this line is not a comment */
363 if( line[i] != COMMENT_TOKEN )
364 {
365 /* get the name part */
366 j=0;
367 while( i<len && line[i]!='=' && !IS_WHITESPACE(line[i]) )
368 {
369 name[j++] = line[i++];
370 }
371 name[j] = '\0';
373 /* skip '=' and whitespace */
374 while( i<len && (line[i]=='=' || IS_WHITESPACE(line[i])) )
375 i++;
377 /* get the value part */
378 j=0;
379 while( i<len )
380 {
381 value[j++] = line[i++];
382 }
383 value[j] = '\0';
385 match_found = 1;
387 /* key definition */
388 if( !strcasecmp(CONF_KEY_DEFINITION, name) )
389 {
390 parse_key_definition(value);
391 }
392 /* enable colors */
393 else if( !strcasecmp(CONF_ENABLE_COLORS, name) )
394 {
395 options->enable_colors = str2bool(value);
396 }
397 /* auto center */
398 else if( !strcasecmp(CONF_AUTO_CENTER, name) )
399 {
400 options->auto_center = str2bool(value);
401 }
402 /* color assignment */
403 else if( !strcasecmp(CONF_COLOR, name) )
404 {
405 parse_color(value);
406 }
407 #ifdef ENABLE_OLD_COLOR_SYNTAX
408 /* background color */
409 else if( !strcasecmp(CONF_COLOR_BACKGROUND, name) )
410 {
411 fprintf(stderr,"%s: %s - deprecated!\n", filename,name);
412 colors_assign("background", value);
413 }
414 /* color - top (title) window */
415 else if( !strcasecmp(CONF_COLOR_TITLE, name) )
416 {
417 fprintf(stderr,"%s: %s - deprecated!\n", filename,name);
418 colors_assign("title", value);
419 colors_assign("title2", value);
420 }
421 /* color - line (title) window */
422 else if( !strcasecmp(CONF_COLOR_LINE, name) )
423 {
424 fprintf(stderr,"%s: %s - deprecated!\n", filename,name);
425 colors_assign("line", value);
426 colors_assign("line2", value);
427 }
428 /* color - list window */
429 else if( !strcasecmp(CONF_COLOR_LIST, name) )
430 {
431 fprintf(stderr,"%s: %s - deprecated!\n", filename,name);
432 colors_assign("list", value);
433 }
434 /* color - progress bar */
435 else if( !strcasecmp(CONF_COLOR_PROGRESS, name) )
436 {
437 fprintf(stderr,"%s: %s - deprecated!\n", filename,name);
438 colors_assign("progressbar", value);
439 }
440 /* color - status window */
441 else if( !strcasecmp(CONF_COLOR_STATUS, name) )
442 {
443 fprintf(stderr,"%s: %s - deprecated!\n", filename,name);
444 colors_assign("status", value);
445 colors_assign("status2", value);
446 }
447 /* color - alerts */
448 else if( !strcasecmp(CONF_COLOR_ALERT, name) )
449 {
450 fprintf(stderr,"%s: %s - deprecated!\n", filename,name);
451 colors_assign("alert", value);
452 }
453 #endif
454 /* wide cursor */
455 else if( !strcasecmp(CONF_WIDE_CURSOR, name) )
456 {
457 options->wide_cursor = str2bool(value);
458 }
459 /* color definition */
460 else if( !strcasecmp(CONF_COLOR_DEFINITION, name) )
461 {
462 parse_color_definition(value);
463 }
464 else
465 {
466 match_found = 0;
467 }
470 if( !match_found )
471 fprintf(stderr,
472 "Unknown configuration parameter: %s\n",
473 name);
474 #ifdef DEBUG
475 printf( " %s = %s %s\n",
476 name,
477 value,
478 match_found ? "" : "- UNKNOWN SETTING!" );
479 #endif
481 }
482 }
483 }
485 D(printf( "--\n\n" ));
487 if( free_filename )
488 g_free(filename);
490 return 0;
491 }
493 int
494 check_user_conf_dir(void)
495 {
496 int retval;
497 char *dirname = g_build_filename(g_get_home_dir(), "." PACKAGE, NULL);
499 if( g_file_test(dirname, G_FILE_TEST_IS_DIR) )
500 {
501 g_free(dirname);
502 return 0;
503 }
504 retval = mkdir(dirname, 0755);
505 g_free(dirname);
506 return retval;
507 }
509 char *
510 get_user_key_binding_filename(void)
511 {
512 return g_build_filename(g_get_home_dir(), "." PACKAGE, "keys", NULL);
513 }
516 int
517 read_configuration(options_t *options)
518 {
519 char *filename = NULL;
521 /* check for command line configuration file */
522 if( options->config_file )
523 filename = g_strdup(options->config_file);
525 /* check for user configuration ~/.ncmpc/config */
526 if( filename == NULL )
527 {
528 filename = g_build_filename(g_get_home_dir(),
529 "." PACKAGE, "config", NULL);
530 if( !g_file_test(filename, G_FILE_TEST_IS_REGULAR) )
531 {
532 g_free(filename);
533 filename = NULL;
534 }
535 }
537 /* check for global configuration SYSCONFDIR/ncmpc/config */
538 if( filename == NULL )
539 {
540 filename = g_build_filename(SYSCONFDIR, PACKAGE, "config", NULL);
541 if( !g_file_test(filename, G_FILE_TEST_IS_REGULAR) )
542 {
543 g_free(filename);
544 filename = NULL;
545 }
546 }
548 /* load configuration */
549 if( filename )
550 {
551 read_rc_file(filename, options);
552 g_free(filename);
553 filename = NULL;
554 }
556 /* check for command line key binding file */
557 if( options->key_file )
558 filename = g_strdup(options->key_file);
560 /* check for user key bindings ~/.ncmpc/keys */
561 if( filename == NULL )
562 {
563 filename = get_user_key_binding_filename();
564 if( !g_file_test(filename, G_FILE_TEST_IS_REGULAR) )
565 {
566 g_free(filename);
567 filename = NULL;
568 }
569 }
571 /* check for global key bindings SYSCONFDIR/ncmpc/keys */
572 if( filename == NULL )
573 {
574 filename = g_build_filename(SYSCONFDIR, PACKAGE, "keys", NULL);
575 if( !g_file_test(filename, G_FILE_TEST_IS_REGULAR) )
576 {
577 g_free(filename);
578 filename = NULL;
579 }
580 }
582 /* load key bindings */
583 if( filename )
584 {
585 read_rc_file(filename, options);
586 g_free(filename);
587 filename = NULL;
588 }
590 return 0;
591 }