Code

Merge branch 'master' of git://git.musicpd.org/patrick/ncmpc
[ncmpc.git] / src / conf.c
1 /* ncmpc (Ncurses MPD Client)
2  * (c) 2004-2009 The Music Player Daemon Project
3  * Project homepage: http://musicpd.org
4  
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
15  * You should have received a copy of the GNU General Public License along
16  * with this program; if not, write to the Free Software Foundation, Inc.,
17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 */
20 #include "conf.h"
21 #include "config.h"
22 #include "defaults.h"
23 #include "i18n.h"
24 #include "command.h"
25 #include "colors.h"
26 #include "screen_list.h"
28 #include <ctype.h>
29 #include <stdio.h>
30 #include <errno.h>
31 #include <stdlib.h>
32 #include <unistd.h>
33 #include <string.h>
34 #include <sys/types.h>
35 #include <sys/stat.h>
36 #include <fcntl.h>
37 #include <glib.h>
39 #define MAX_LINE_LENGTH 1024
40 #define COMMENT_TOKEN '#'
42 /* configuration field names */
43 #define CONF_ENABLE_COLORS "enable-colors"
44 #define CONF_AUTO_CENTER "auto-center"
45 #define CONF_WIDE_CURSOR "wide-cursor"
46 #define CONF_KEY_DEFINITION "key"
47 #define CONF_COLOR "color"
48 #define CONF_COLOR_DEFINITION "colordef"
49 #define CONF_LIST_FORMAT "list-format"
50 #define CONF_STATUS_FORMAT "status-format"
51 #define CONF_XTERM_TITLE_FORMAT "xterm-title-format"
52 #define CONF_LIST_WRAP "wrap-around"
53 #define CONF_FIND_WRAP "find-wrap"
54 #define CONF_FIND_SHOW_LAST "find-show-last"
55 #define CONF_AUDIBLE_BELL "audible-bell"
56 #define CONF_VISIBLE_BELL "visible-bell"
57 #define CONF_BELL_ON_WRAP "bell-on-wrap"
58 #define CONF_STATUS_MESSAGE_TIME "status-message-time"
59 #define CONF_XTERM_TITLE "set-xterm-title"
60 #define CONF_ENABLE_MOUSE "enable-mouse"
61 #define CONF_CROSSFADE_TIME "crossfade-time"
62 #define CONF_SEARCH_MODE "search-mode"
63 #define CONF_HIDE_CURSOR "hide-cursor"
64 #define CONF_SEEK_TIME "seek-time"
65 #define CONF_SCREEN_LIST "screen-list"
66 #define CONF_TIMEDISPLAY_TYPE "timedisplay-type"
67 #define CONF_HOST "host"
68 #define CONF_PORT "port"
69 #define CONF_PASSWORD "password"
70 #define CONF_LYRICS_TIMEOUT "lyrics-timeout"
71 #define CONF_SHOW_SPLASH "show-splash"
72 #define CONF_SCROLL "scroll"
73 #define CONF_SCROLL_SEP "scroll-sep"
74 #define CONF_VISIBLE_BITRATE "visible-bitrate"
75 #define CONF_WELCOME_SCREEN_LIST "welcome-screen-list"
76 #define CONF_DISPLAY_TIME "display-time"
77 #define CONF_JUMP_PREFIX_ONLY "jump-prefix-only"
79 static bool
80 str2bool(char *str)
81 {
82         return strcasecmp(str, "yes") == 0 || strcasecmp(str, "true") == 0 ||
83                 strcasecmp(str, "on") == 0 || strcasecmp(str, "1") == 0;
84 }
86 static void
87 print_error(const char *msg, const char *input)
88 {
89         fprintf(stderr, "%s: %s ('%s')\n",
90                 /* To translators: prefix for error messages */
91                 _("Error"), msg, input);
92 }
94 static int
95 parse_key_value(char *str, char **end)
96 {
97         if (*str == '\'') {
98                 if (str[1] == '\'' || str[2] != '\'') {
99                         print_error(_("Malformed hotkey definition"), str);
100                         return -1;
101                 }
103                 *end = str + 3;
104                 return str[1];
105         } else {
106                 long value = strtol(str, end, 0);
107                 if (*end == str) {
108                         print_error(_("Malformed hotkey definition"), str);
109                         return -1;
110                 }
112                 return (int)value;
113         }
116 static int
117 parse_key_definition(char *str)
119         char buf[MAX_LINE_LENGTH];
120         char *p;
121         size_t len = strlen(str), i;
122         int j,key;
123         int keys[MAX_COMMAND_KEYS];
124         command_t cmd;
126         /* get the command name */
127         i=0;
128         j=0;
129         memset(buf, 0, MAX_LINE_LENGTH);
130         while (i < len && str[i] != '=' && !g_ascii_isspace(str[i]))
131                 buf[j++] = str[i++];
132         if( (cmd=get_key_command_from_name(buf)) == CMD_NONE ) {
133                 /* the hotkey configuration contains an unknown
134                    command */
135                 print_error(_("Unknown command"), buf);
136                 return -1;
137         }
139         /* skip whitespace */
140         while (i < len && (str[i] == '=' || g_ascii_isspace(str[i])))
141                 i++;
143         /* get the value part */
144         memset(buf, 0, MAX_LINE_LENGTH);
145         g_strlcpy(buf, str+i, MAX_LINE_LENGTH);
146         if (*buf == 0) {
147                 /* the hotkey configuration line is incomplete */
148                 print_error(_("Incomplete hotkey configuration"), str);
149                 return -1;
150         }
152         /* parse key values */
153         i = 0;
154         key = 0;
155         p = buf;
156         memset(keys, 0, sizeof(int)*MAX_COMMAND_KEYS);
157         while (i < MAX_COMMAND_KEYS && *p != 0 &&
158                (key = parse_key_value(p, &p)) >= 0) {
159                 keys[i++] = key;
160                 while (*p==',' || *p==' ' || *p=='\t')
161                         p++;
162         }
164         if (key < 0)
165                 return -1;
167         return assign_keys(cmd, keys);
170 static const char *
171 parse_timedisplay_type(const char *str)
173         if (!strcmp(str,"elapsed") || !strcmp(str,"remaining"))
174                 return str;
175         else {
176                 /* translators: ncmpc supports displaying the
177                    "elapsed" or "remaining" time of a song being
178                    played; in this case, the configuration file
179                    contained an invalid setting */
180                 print_error(_("Bad time display type"), str);
181                 return DEFAULT_TIMEDISPLAY_TYPE;
182         }
185 #ifdef ENABLE_COLORS
186 static char *
187 separate_value(char *p)
189         char *value;
191         value = strchr(p, '=');
192         if (value == NULL) {
193                 /* an equals sign '=' was expected while parsing a
194                    configuration file line */
195                 fprintf(stderr, "%s\n", _("Missing '='"));
196                 return NULL;
197         }
199         *value++ = 0;
201         g_strchomp(p);
202         return g_strchug(value);
205 static int
206 parse_color(char *str)
208         char *value;
210         value = separate_value(str);
211         if (value == NULL)
212                 return -1;
214         return colors_assign(str, value);
217 /**
218  * Returns the first non-whitespace character after the next comma
219  * character, or the end of the string.  This is used to parse comma
220  * separated values.
221  */
222 static char *
223 after_comma(char *p)
225         char *comma = strchr(p, ',');
227         if (comma != NULL) {
228                 *comma++ = 0;
229                 comma = g_strchug(comma);
230         } else
231                 comma = p + strlen(p);
233         g_strchomp(p);
234         return comma;
237 static int
238 parse_color_definition(char *str)
240         char buf[MAX_LINE_LENGTH];
241         char *value;
242         short color, rgb[3];
244         value = separate_value(str);
245         if (value == NULL)
246                 return -1;
248         /* get the command name */
249         color = colors_str2color(str);
250         if (color < 0) {
251                 print_error(_("Bad color name"), buf);
252                 return -1;
253         }
255         /* parse r,g,b values */
257         for (unsigned i = 0; i < 3; ++i) {
258                 char *next = after_comma(value), *endptr;
259                 if (*value == 0) {
260                         print_error(_("Incomplete color definition"), str);
261                         return -1;
262                 }
264                 rgb[i] = strtol(value, &endptr, 0);
265                 if (endptr == value || *endptr != 0) {
266                         print_error(_("Invalid number"), value);
267                         return -1;
268                 }
270                 value = next;
271         }
273         if (*value != 0) {
274                 print_error(_("Malformed color definition"), str);
275                 return -1;
276         }
278         return colors_define(str, rgb[0], rgb[1], rgb[2]);
280 #endif
282 static char *
283 get_format(char *str)
285         gsize len = strlen(str);
287         if (str && str[0]=='\"' && str[len-1] == '\"') {
288                 str[len - 1] = '\0';
289                 str++;
290         }
292         return g_strdup(str);
295 static char **
296 check_screen_list(char *value)
298         char **tmp = g_strsplit_set(value, " \t,", 100);
299         char **screen = NULL;
300         int i,j;
302         i=0;
303         j=0;
304         while( tmp && tmp[i] ) {
305                 char *name = g_ascii_strdown(tmp[i], -1);
306                 if (*name != '\0') {
307                         if (screen_lookup_name(name) == NULL) {
308                                 /* an unknown screen name was specified in the
309                                    configuration file */
310                                 print_error(_("Unknown screen name"), name);
311                                 free(name);
312                         } else {
313                                 screen = g_realloc(screen, (j+2)*sizeof(char *));
314                                 screen[j++] = name;
315                                 screen[j] = NULL;
316                         }
317                 }
318                 i++;
319         }
320         g_strfreev(tmp);
321         if( screen == NULL )
322                 return g_strsplit_set(DEFAULT_SCREEN_LIST, " ", 0);
324         return screen;
327 static int
328 get_search_mode(char *value)
330         char * test;
331         int mode;
332         mode= strtol(value, &test, 10);
333         if (*test == '\0')
334         {
335                 if (0 <= mode && mode <= 4)
336                         return mode;
337                 else
338                 {
339                         print_error(_("Invalid search mode"),value);
340                         return 0;
341                 }
342         }
343         else
344         {
345                 for (int i = 0; value[i] != '\0'; i++)
346                         value[i] = tolower(value[i]);
348                 // TODO: modify screen_search so that its own list of modes can be used
349                 // for comparison instead of specifying them here
350                 if (strcmp(value, "title") == 0)
351                         return 0;
352                 else if (strcmp(value, "artist") == 0)
353                         return 1;
354                 else if (strcmp(value, "album") == 0)
355                         return 2;
356                 else if (strcmp(value, "filename") == 0)
357                         return 3;
358                 else if (strcmp(value, "artist+album") == 0)
359                         return 4;
360                 else
361                 {
362                         print_error(_("Unknown search mode"),value);
363                         return 0;
364                 }
365         }
368 static bool
369 parse_line(char *line)
371         size_t len = strlen(line), i = 0, j;
372         char name[MAX_LINE_LENGTH];
373         char value[MAX_LINE_LENGTH];
374         bool match_found;
376         /* get the name part */
377         j = 0;
378         while (i < len && line[i] != '=' &&
379                !g_ascii_isspace(line[i])) {
380                 name[j++] = line[i++];
381         }
383         name[j] = '\0';
385         /* skip '=' and whitespace */
386         while (i < len && (line[i] == '=' || g_ascii_isspace(line[i])))
387                 i++;
389         /* get the value part */
390         j = 0;
391         while (i < len)
392                 value[j++] = line[i++];
393         value[j] = '\0';
395         match_found = true;
397         /* key definition */
398         if (!strcasecmp(CONF_KEY_DEFINITION, name))
399                 parse_key_definition(value);
400         /* enable colors */
401         else if(!strcasecmp(CONF_ENABLE_COLORS, name))
402 #ifdef ENABLE_COLORS
403                 options.enable_colors = str2bool(value);
404 #else
405         {}
406 #endif
407         /* auto center */
408         else if (!strcasecmp(CONF_AUTO_CENTER, name))
409                 options.auto_center = str2bool(value);
410         /* color assignment */
411         else if (!strcasecmp(CONF_COLOR, name))
412 #ifdef ENABLE_COLORS
413                 parse_color(value);
414 #else
415         {}
416 #endif
417         /* wide cursor */
418         else if (!strcasecmp(CONF_WIDE_CURSOR, name))
419                 options.wide_cursor = str2bool(value);
420         /* welcome screen list */
421         else if (!strcasecmp(CONF_WELCOME_SCREEN_LIST, name))
422                 options.welcome_screen_list = str2bool(value);
423         /* visible bitrate */
424         else if (!strcasecmp(CONF_VISIBLE_BITRATE, name))
425                 options.visible_bitrate = str2bool(value);
426         /* timer display type */
427         else if (!strcasecmp(CONF_TIMEDISPLAY_TYPE, name)) {
428                 g_free(options.timedisplay_type);
429                 options.timedisplay_type=g_strdup(parse_timedisplay_type(value));
430                 /* color definition */
431         } else if (!strcasecmp(CONF_COLOR_DEFINITION, name))
432 #ifdef ENABLE_COLORS
433                 parse_color_definition(value);
434 #else
435         {}
436 #endif
437         /* list format string */
438         else if (!strcasecmp(CONF_LIST_FORMAT, name)) {
439                 g_free(options.list_format);
440                 options.list_format = get_format(value);
441                 /* status format string */
442         } else if (!strcasecmp(CONF_STATUS_FORMAT, name)) {
443                 g_free(options.status_format);
444                 options.status_format = get_format(value);
445                 /* xterm title format string */
446         } else if (!strcasecmp(CONF_XTERM_TITLE_FORMAT, name)) {
447                 g_free(options.xterm_title_format);
448                 options.xterm_title_format = get_format(value);
449         } else if (!strcasecmp(CONF_LIST_WRAP, name))
450                 options.list_wrap = str2bool(value);
451         else if (!strcasecmp(CONF_FIND_WRAP, name))
452                 options.find_wrap = str2bool(value);
453         else if (!strcasecmp(CONF_FIND_SHOW_LAST,name))
454                 options.find_show_last_pattern = str2bool(value);
455         else if (!strcasecmp(CONF_AUDIBLE_BELL, name))
456                 options.audible_bell = str2bool(value);
457         else if (!strcasecmp(CONF_VISIBLE_BELL, name))
458                 options.visible_bell = str2bool(value);
459         else if (!strcasecmp(CONF_BELL_ON_WRAP, name))
460                 options.bell_on_wrap = str2bool(value);
461         else if (!strcasecmp(CONF_STATUS_MESSAGE_TIME, name))
462                 options.status_message_time = atoi(value);
463         else if (!strcasecmp(CONF_XTERM_TITLE, name))
464                 options.enable_xterm_title = str2bool(value);
465         else if (!strcasecmp(CONF_ENABLE_MOUSE, name))
466 #ifdef HAVE_GETMOUSE
467                 options.enable_mouse = str2bool(value);
468 #else
469         {}
470 #endif
471         else if (!strcasecmp(CONF_CROSSFADE_TIME, name))
472                 options.crossfade_time = atoi(value);
473         else if (!strcasecmp(CONF_SEARCH_MODE, name))
474                 options.search_mode = get_search_mode(value);
475         else if (!strcasecmp(CONF_HIDE_CURSOR, name))
476                 options.hide_cursor = atoi(value);
477         else if (!strcasecmp(CONF_SEEK_TIME, name))
478                 options.seek_time = atoi(value);
479         else if (!strcasecmp(CONF_SCREEN_LIST, name)) {
480                 g_strfreev(options.screen_list);
481                 options.screen_list = check_screen_list(value);
482         } else if (!strcasecmp(CONF_SHOW_SPLASH, name)) {
483                 /* the splash screen was removed */
484         } else if (!strcasecmp(CONF_HOST, name))
485                 options.host = get_format(value);
486         else if (!strcasecmp(CONF_PORT, name))
487                 options.port = atoi(get_format(value));
488         else if (!strcasecmp(CONF_PASSWORD, name))
489                 options.password = get_format(value);
490         else if (!strcasecmp(CONF_LYRICS_TIMEOUT, name))
491 #ifdef ENABLE_LYRICS_SCREEN
492                 options.lyrics_timeout = atoi(get_format(value));
493 #else
494         {}
495 #endif
496         else if (!strcasecmp(CONF_SCROLL, name))
497                 options.scroll = str2bool(value);
498         else if (!strcasecmp(CONF_SCROLL_SEP, name)) {
499                 g_free(options.scroll_sep);
500                 options.scroll_sep = get_format(value);
501         } else if (!strcasecmp(CONF_DISPLAY_TIME, name))
502 #ifdef NCMPC_MINI
503                 {}
504 #else
505                 options.display_time = str2bool(value);
506 #endif
507         else if (!strcasecmp(CONF_JUMP_PREFIX_ONLY, name))
508 #ifdef NCMPC_MINI
509                 {}
510 #else
511                 options.jump_prefix_only = str2bool(value);
512 #endif
513         else
514                 match_found = false;
516         if (!match_found)
517                 print_error(_("Unknown configuration parameter"),
518                             name);
520         return match_found;
523 static int
524 read_rc_file(char *filename)
526         FILE *file;
527         char line[MAX_LINE_LENGTH];
529         if (filename == NULL)
530                 return -1;
532         file = fopen(filename, "r");
533         if (file == NULL) {
534                         perror(filename);
535                         return -1;
536                 }
538         while (fgets(line, sizeof(line), file) != NULL) {
539                 char *p = g_strchug(line);
541                 if (*p != 0 && *p != COMMENT_TOKEN)
542                         parse_line(g_strchomp(p));
543         }
545         fclose(file);
546         return 0;
549 int
550 check_user_conf_dir(void)
552         int retval;
553         char *directory = g_build_filename(g_get_home_dir(), "." PACKAGE, NULL);
555         if (g_file_test(directory, G_FILE_TEST_IS_DIR)) {
556                 g_free(directory);
557                 return 0;
558         }
560         retval = mkdir(directory, 0755);
561         g_free(directory);
562         return retval;
565 char *
566 get_user_key_binding_filename(void)
568         return g_build_filename(g_get_home_dir(), "." PACKAGE, "keys", NULL);
571 int
572 read_configuration(void)
574         char *filename = NULL;
576         /* check for command line configuration file */
577         if (options.config_file)
578                 filename = g_strdup(options.config_file);
580         /* check for user configuration ~/.ncmpc/config */
581         if (filename == NULL) {
582                 filename = g_build_filename(g_get_home_dir(),
583                                             "." PACKAGE, "config", NULL);
584                 if (!g_file_test(filename, G_FILE_TEST_IS_REGULAR)) {
585                         g_free(filename);
586                         filename = NULL;
587                 }
588         }
590         /* check for  global configuration SYSCONFDIR/ncmpc/config */
591         if (filename == NULL) {
592                 filename = g_build_filename(SYSCONFDIR, PACKAGE, "config", NULL);
593                 if (!g_file_test(filename, G_FILE_TEST_IS_REGULAR)) {
594                         g_free(filename);
595                         filename = NULL;
596                 }
597         }
599         /* load configuration */
600         if (filename) {
601                 read_rc_file(filename);
602                 g_free(filename);
603                 filename = NULL;
604         }
606         /* check for command line key binding file */
607         if (options.key_file)
608                 filename = g_strdup(options.key_file);
610         /* check for  user key bindings ~/.ncmpc/keys */
611         if (filename == NULL) {
612                 filename = get_user_key_binding_filename();
613                 if (!g_file_test(filename, G_FILE_TEST_IS_REGULAR)) {
614                         g_free(filename);
615                         filename = NULL;
616                 }
617         }
619         /* check for  global key bindings SYSCONFDIR/ncmpc/keys */
620         if (filename == NULL) {
621                 filename = g_build_filename(SYSCONFDIR, PACKAGE, "keys", NULL);
622                 if (!g_file_test(filename, G_FILE_TEST_IS_REGULAR)) {
623                         g_free(filename);
624                         filename = NULL;
625                 }
626         }
628         /* load key bindings */
629         if (filename) {
630                 read_rc_file(filename);
631                 g_free(filename);
632                 filename = NULL;
633         }
635         return 0;