Code

conf: rename get_user_key_binding_filename to build_*
[ncmpc.git] / src / conf.c
1 /* ncmpc (Ncurses MPD Client)
2  * (c) 2004-2010 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.
9  *
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.
14  *
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 <fcntl.h>
35 #include <glib.h>
36 #include <glib/gstdio.h>
38 #define MAX_LINE_LENGTH 1024
39 #define COMMENT_TOKEN '#'
41 /* configuration field names */
42 #define CONF_ENABLE_COLORS "enable-colors"
43 #define CONF_SCROLL_OFFSET "scroll-offset"
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_TIMEOUT "timeout"
71 #define CONF_LYRICS_TIMEOUT "lyrics-timeout"
72 #define CONF_SCROLL "scroll"
73 #define CONF_SCROLL_SEP "scroll-sep"
74 #define CONF_VISIBLE_BITRATE "visible-bitrate"
75 #define CONF_HARDWARE_CURSOR "hardware-cursor"
76 #define CONF_WELCOME_SCREEN_LIST "welcome-screen-list"
77 #define CONF_DISPLAY_TIME "display-time"
78 #define CONF_JUMP_PREFIX_ONLY "jump-prefix-only"
79 #define CONF_LYRICS_AUTOSAVE "lyrics-autosave"
80 #define CONF_LYRICS_SHOW_PLUGIN "lyrics-show-plugin"
81 #define CONF_TEXT_EDITOR "text-editor"
82 #define CONF_TEXT_EDITOR_ASK "text-editor-ask"
83 #define CONF_SECOND_COLUMN "second-column"
85 static bool
86 str2bool(char *str)
87 {
88         return strcasecmp(str, "yes") == 0 || strcasecmp(str, "true") == 0 ||
89                 strcasecmp(str, "on") == 0 || strcasecmp(str, "1") == 0;
90 }
92 static void
93 print_error(const char *msg, const char *input)
94 {
95         fprintf(stderr, "%s: %s ('%s')\n",
96                 /* To translators: prefix for error messages */
97                 _("Error"), msg, input);
98 }
100 static int
101 parse_key_value(char *str, char **end)
103         if (*str == '\'') {
104                 if (str[1] == '\'' || str[2] != '\'') {
105                         print_error(_("Malformed hotkey definition"), str);
106                         return -1;
107                 }
109                 *end = str + 3;
110                 return str[1];
111         } else {
112                 long value = strtol(str, end, 0);
113                 if (*end == str) {
114                         print_error(_("Malformed hotkey definition"), str);
115                         return -1;
116                 }
118                 return (int)value;
119         }
122 static int
123 parse_key_definition(char *str)
125         char buf[MAX_LINE_LENGTH];
126         char *p;
127         size_t len = strlen(str), i;
128         int j,key;
129         int keys[MAX_COMMAND_KEYS];
130         command_t cmd;
132         /* get the command name */
133         i=0;
134         j=0;
135         memset(buf, 0, MAX_LINE_LENGTH);
136         while (i < len && str[i] != '=' && !g_ascii_isspace(str[i]))
137                 buf[j++] = str[i++];
138         if( (cmd=get_key_command_from_name(buf)) == CMD_NONE ) {
139                 /* the hotkey configuration contains an unknown
140                    command */
141                 print_error(_("Unknown command"), buf);
142                 return -1;
143         }
145         /* skip whitespace */
146         while (i < len && (str[i] == '=' || g_ascii_isspace(str[i])))
147                 i++;
149         /* get the value part */
150         memset(buf, 0, MAX_LINE_LENGTH);
151         g_strlcpy(buf, str+i, MAX_LINE_LENGTH);
152         if (*buf == 0) {
153                 /* the hotkey configuration line is incomplete */
154                 print_error(_("Incomplete hotkey configuration"), str);
155                 return -1;
156         }
158         /* parse key values */
159         i = 0;
160         key = 0;
161         p = buf;
162         memset(keys, 0, sizeof(int)*MAX_COMMAND_KEYS);
163         while (i < MAX_COMMAND_KEYS && *p != 0 &&
164                (key = parse_key_value(p, &p)) >= 0) {
165                 keys[i++] = key;
166                 while (*p==',' || *p==' ' || *p=='\t')
167                         p++;
168         }
170         if (key < 0)
171                 return -1;
173         return assign_keys(cmd, keys);
176 static bool
177 parse_timedisplay_type(const char *str)
179         if (strcmp(str, "elapsed") == 0)
180                 return false;
181         else if (strcmp(str, "remaining") == 0)
182                 return true;
183         else {
184                 /* translators: ncmpc supports displaying the
185                    "elapsed" or "remaining" time of a song being
186                    played; in this case, the configuration file
187                    contained an invalid setting */
188                 print_error(_("Bad time display type"), str);
189                 return false;
190         }
193 #ifdef ENABLE_COLORS
194 static char *
195 separate_value(char *p)
197         char *value;
199         value = strchr(p, '=');
200         if (value == NULL) {
201                 /* an equals sign '=' was expected while parsing a
202                    configuration file line */
203                 fprintf(stderr, "%s\n", _("Missing '='"));
204                 return NULL;
205         }
207         *value++ = 0;
209         g_strchomp(p);
210         return g_strchug(value);
213 static int
214 parse_color(char *str)
216         char *value;
218         value = separate_value(str);
219         if (value == NULL)
220                 return -1;
222         return colors_assign(str, value);
225 /**
226  * Returns the first non-whitespace character after the next comma
227  * character, or the end of the string.  This is used to parse comma
228  * separated values.
229  */
230 static char *
231 after_comma(char *p)
233         char *comma = strchr(p, ',');
235         if (comma != NULL) {
236                 *comma++ = 0;
237                 comma = g_strchug(comma);
238         } else
239                 comma = p + strlen(p);
241         g_strchomp(p);
242         return comma;
245 static int
246 parse_color_definition(char *str)
248         char buf[MAX_LINE_LENGTH];
249         char *value;
250         short color, rgb[3];
252         value = separate_value(str);
253         if (value == NULL)
254                 return -1;
256         /* get the command name */
257         color = colors_str2color(str);
258         if (color < 0) {
259                 print_error(_("Bad color name"), buf);
260                 return -1;
261         }
263         /* parse r,g,b values */
265         for (unsigned i = 0; i < 3; ++i) {
266                 char *next = after_comma(value), *endptr;
267                 if (*value == 0) {
268                         print_error(_("Incomplete color definition"), str);
269                         return -1;
270                 }
272                 rgb[i] = strtol(value, &endptr, 0);
273                 if (endptr == value || *endptr != 0) {
274                         print_error(_("Invalid number"), value);
275                         return -1;
276                 }
278                 value = next;
279         }
281         if (*value != 0) {
282                 print_error(_("Malformed color definition"), str);
283                 return -1;
284         }
286         return colors_define(str, rgb[0], rgb[1], rgb[2]);
288 #endif
290 static char *
291 get_format(char *str)
293         gsize len = strlen(str);
295         if (str && str[0]=='\"' && str[len-1] == '\"') {
296                 str[len - 1] = '\0';
297                 str++;
298         }
300         return g_strdup(str);
303 static char **
304 check_screen_list(char *value)
306         char **tmp = g_strsplit_set(value, " \t,", 100);
307         char **screen = NULL;
308         int i = 0, j = 0;
310         while( tmp && tmp[i] ) {
311                 char *name = g_ascii_strdown(tmp[i], -1);
312                 if (*name != '\0') {
313                         if (screen_lookup_name(name) == NULL) {
314                                 /* an unknown screen name was specified in the
315                                    configuration file */
316                                 print_error(_("Unknown screen name"), name);
317                                 free(name);
318                         } else {
319                                 screen = g_realloc(screen, (j+2)*sizeof(char *));
320                                 screen[j++] = name;
321                                 screen[j] = NULL;
322                         }
323                 }
324                 i++;
325         }
326         g_strfreev(tmp);
327         if( screen == NULL )
328                 return g_strsplit_set(DEFAULT_SCREEN_LIST, " ", 0);
330         return screen;
333 static int
334 get_search_mode(char *value)
336         char * test;
337         int mode;
338         mode= strtol(value, &test, 10);
339         if (*test == '\0')
340         {
341                 if (0 <= mode && mode <= 4)
342                         return mode;
343                 else
344                 {
345                         print_error(_("Invalid search mode"),value);
346                         return 0;
347                 }
348         }
349         else
350         {
351                 for (int i = 0; value[i] != '\0'; i++)
352                         value[i] = tolower(value[i]);
354                 // TODO: modify screen_search so that its own list of modes can be used
355                 // for comparison instead of specifying them here
356                 if (strcmp(value, "title") == 0)
357                         return 0;
358                 else if (strcmp(value, "artist") == 0)
359                         return 1;
360                 else if (strcmp(value, "album") == 0)
361                         return 2;
362                 else if (strcmp(value, "filename") == 0)
363                         return 3;
364                 else if (strcmp(value, "artist+album") == 0)
365                         return 4;
366                 else
367                 {
368                         print_error(_("Unknown search mode"),value);
369                         return 0;
370                 }
371         }
374 static bool
375 parse_line(char *line)
377         size_t len = strlen(line), i = 0, j = 0;
378         char name[MAX_LINE_LENGTH];
379         char value[MAX_LINE_LENGTH];
380         bool match_found;
382         /* get the name part */
383         while (i < len && line[i] != '=' && !g_ascii_isspace(line[i]))
384                 name[j++] = line[i++];
386         name[j] = '\0';
388         /* skip '=' and whitespace */
389         while (i < len && (line[i] == '=' || g_ascii_isspace(line[i])))
390                 i++;
392         /* get the value part */
393         j = 0;
394         while (i < len)
395                 value[j++] = line[i++];
396         value[j] = '\0';
398         match_found = true;
400         /* key definition */
401         if (!strcasecmp(CONF_KEY_DEFINITION, name))
402                 parse_key_definition(value);
403         /* enable colors */
404         else if(!strcasecmp(CONF_ENABLE_COLORS, name))
405 #ifdef ENABLE_COLORS
406                 options.enable_colors = str2bool(value);
407 #else
408         {}
409 #endif
410         else if (!strcasecmp(CONF_SCROLL_OFFSET, name))
411                 options.scroll_offset = atoi(value);
412         /* auto center */
413         else if (!strcasecmp(CONF_AUTO_CENTER, name))
414                 options.auto_center = str2bool(value);
415         /* color assignment */
416         else if (!strcasecmp(CONF_COLOR, name))
417 #ifdef ENABLE_COLORS
418                 parse_color(value);
419 #else
420         {}
421 #endif
422         /* wide cursor */
423         else if (!strcasecmp(CONF_WIDE_CURSOR, name))
424                 options.wide_cursor = str2bool(value);
425         else if (strcasecmp(name, CONF_HARDWARE_CURSOR) == 0)
426                 options.hardware_cursor = str2bool(value);
427         /* welcome screen list */
428         else if (!strcasecmp(CONF_WELCOME_SCREEN_LIST, name))
429                 options.welcome_screen_list = str2bool(value);
430         /* visible bitrate */
431         else if (!strcasecmp(CONF_VISIBLE_BITRATE, name))
432                 options.visible_bitrate = str2bool(value);
433         /* timer display type */
434         else if (!strcasecmp(CONF_TIMEDISPLAY_TYPE, name))
435                 options.display_remaining_time = parse_timedisplay_type(value);
436                 /* color definition */
437         else if (!strcasecmp(CONF_COLOR_DEFINITION, name))
438 #ifdef ENABLE_COLORS
439                 parse_color_definition(value);
440 #else
441         {}
442 #endif
443         /* list format string */
444         else if (!strcasecmp(CONF_LIST_FORMAT, name)) {
445                 g_free(options.list_format);
446                 options.list_format = get_format(value);
447                 /* status format string */
448         } else if (!strcasecmp(CONF_STATUS_FORMAT, name)) {
449                 g_free(options.status_format);
450                 options.status_format = get_format(value);
451                 /* xterm title format string */
452         } else if (!strcasecmp(CONF_XTERM_TITLE_FORMAT, name)) {
453                 g_free(options.xterm_title_format);
454                 options.xterm_title_format = get_format(value);
455         } else if (!strcasecmp(CONF_LIST_WRAP, name))
456                 options.list_wrap = str2bool(value);
457         else if (!strcasecmp(CONF_FIND_WRAP, name))
458                 options.find_wrap = str2bool(value);
459         else if (!strcasecmp(CONF_FIND_SHOW_LAST,name))
460                 options.find_show_last_pattern = str2bool(value);
461         else if (!strcasecmp(CONF_AUDIBLE_BELL, name))
462                 options.audible_bell = str2bool(value);
463         else if (!strcasecmp(CONF_VISIBLE_BELL, name))
464                 options.visible_bell = str2bool(value);
465         else if (!strcasecmp(CONF_BELL_ON_WRAP, name))
466                 options.bell_on_wrap = str2bool(value);
467         else if (!strcasecmp(CONF_STATUS_MESSAGE_TIME, name))
468                 options.status_message_time = atoi(value);
469         else if (!strcasecmp(CONF_XTERM_TITLE, name))
470                 options.enable_xterm_title = str2bool(value);
471         else if (!strcasecmp(CONF_ENABLE_MOUSE, name))
472 #ifdef HAVE_GETMOUSE
473                 options.enable_mouse = str2bool(value);
474 #else
475         {}
476 #endif
477         else if (!strcasecmp(CONF_CROSSFADE_TIME, name))
478                 options.crossfade_time = atoi(value);
479         else if (!strcasecmp(CONF_SEARCH_MODE, name))
480                 options.search_mode = get_search_mode(value);
481         else if (!strcasecmp(CONF_HIDE_CURSOR, name))
482                 options.hide_cursor = atoi(value);
483         else if (!strcasecmp(CONF_SEEK_TIME, name))
484                 options.seek_time = atoi(value);
485         else if (!strcasecmp(CONF_SCREEN_LIST, name)) {
486                 g_strfreev(options.screen_list);
487                 options.screen_list = check_screen_list(value);
488         } else if (!strcasecmp(CONF_HOST, name))
489                 options.host = get_format(value);
490         else if (!strcasecmp(CONF_PORT, name))
491                 options.port = atoi(get_format(value));
492         else if (!strcasecmp(CONF_PASSWORD, name))
493                 options.password = get_format(value);
494         else if (!strcasecmp(CONF_TIMEOUT, name))
495                 options.timeout_ms = atoi(get_format(value))
496                                      * 1000 /* seconds -> milliseconds */;
497         else if (!strcasecmp(CONF_LYRICS_TIMEOUT, name))
498 #ifdef ENABLE_LYRICS_SCREEN
499                 options.lyrics_timeout = atoi(get_format(value));
500 #else
501         {}
502 #endif
503         else if (!strcasecmp(CONF_SCROLL, name))
504                 options.scroll = str2bool(value);
505         else if (!strcasecmp(CONF_SCROLL_SEP, name)) {
506                 g_free(options.scroll_sep);
507                 options.scroll_sep = get_format(value);
508         } else if (!strcasecmp(CONF_DISPLAY_TIME, name))
509 #ifdef NCMPC_MINI
510                 {}
511 #else
512                 options.display_time = str2bool(value);
513 #endif
514         else if (!strcasecmp(CONF_JUMP_PREFIX_ONLY, name))
515 #ifdef NCMPC_MINI
516                 {}
517 #else
518                 options.jump_prefix_only = str2bool(value);
519 #endif
520         else if (!strcasecmp(CONF_LYRICS_AUTOSAVE, name))
521 #ifdef ENABLE_LYRICS_SCREEN
522                 options.lyrics_autosave = str2bool(value);
523 #else
524         {}
525 #endif
526         else if (!strcasecmp(CONF_LYRICS_SHOW_PLUGIN, name))
527 #ifdef ENABLE_LYRICS_SCREEN
528                 options.lyrics_show_plugin = str2bool(value);
529 #else
530                 {}
531 #endif
532         else if (!strcasecmp(name, CONF_TEXT_EDITOR))
533 #ifdef ENABLE_LYRICS_SCREEN
534                 {
535                         g_free(options.text_editor);
536                         options.text_editor = get_format(value);
537                 }
538 #else
539                 {}
540 #endif
541         else if (!strcasecmp(name, CONF_TEXT_EDITOR_ASK))
542 #ifdef ENABLE_LYRICS_SCREEN
543                 options.text_editor_ask = str2bool(value);
544 #else
545                 {}
546 #endif
547         else if (!strcasecmp(CONF_SECOND_COLUMN, name))
548 #ifdef NCMPC_MINI
549                 {}
550 #else
551                 options.second_column = str2bool(value);
552 #endif
553         else
554                 match_found = false;
556         if (!match_found)
557                 print_error(_("Unknown configuration parameter"), name);
559         return match_found;
562 static int
563 read_rc_file(char *filename)
565         FILE *file;
566         char line[MAX_LINE_LENGTH];
568         if (filename == NULL)
569                 return -1;
571         file = fopen(filename, "r");
572         if (file == NULL) {
573                         perror(filename);
574                         return -1;
575                 }
577         while (fgets(line, sizeof(line), file) != NULL) {
578                 char *p = g_strchug(line);
580                 if (*p != 0 && *p != COMMENT_TOKEN)
581                         parse_line(g_strchomp(p));
582         }
584         fclose(file);
585         return 0;
588 int
589 check_user_conf_dir(void)
591         int retval;
592         char *directory = g_build_filename(g_get_home_dir(), "." PACKAGE, NULL);
594         if (g_file_test(directory, G_FILE_TEST_IS_DIR)) {
595                 g_free(directory);
596                 return 0;
597         }
599         retval = g_mkdir(directory, 0755);
600         g_free(directory);
601         return retval;
604 char *
605 build_user_key_binding_filename(void)
607         return g_build_filename(g_get_home_dir(), "." PACKAGE, "keys", NULL);
610 int
611 read_configuration(void)
613         char *filename = NULL;
615         /* check for command line configuration file */
616         if (options.config_file)
617                 filename = g_strdup(options.config_file);
619         /* check for user configuration ~/.ncmpc/config */
620         if (filename == NULL) {
621                 filename = g_build_filename(g_get_home_dir(),
622                                             "." PACKAGE, "config", NULL);
623                 if (!g_file_test(filename, G_FILE_TEST_IS_REGULAR)) {
624                         g_free(filename);
625                         filename = NULL;
626                 }
627         }
629         /* check for  global configuration SYSCONFDIR/ncmpc/config */
630         if (filename == NULL) {
631                 filename = g_build_filename(SYSCONFDIR, PACKAGE, "config", NULL);
632                 if (!g_file_test(filename, G_FILE_TEST_IS_REGULAR)) {
633                         g_free(filename);
634                         filename = NULL;
635                 }
636         }
638         /* load configuration */
639         if (filename) {
640                 read_rc_file(filename);
641                 g_free(filename);
642                 filename = NULL;
643         }
645         /* check for command line key binding file */
646         if (options.key_file)
647                 filename = g_strdup(options.key_file);
649         /* check for  user key bindings ~/.ncmpc/keys */
650         if (filename == NULL) {
651                 filename = build_user_key_binding_filename();
652                 if (!g_file_test(filename, G_FILE_TEST_IS_REGULAR)) {
653                         g_free(filename);
654                         filename = NULL;
655                 }
656         }
658         /* check for  global key bindings SYSCONFDIR/ncmpc/keys */
659         if (filename == NULL) {
660                 filename = g_build_filename(SYSCONFDIR, PACKAGE, "keys", NULL);
661                 if (!g_file_test(filename, G_FILE_TEST_IS_REGULAR)) {
662                         g_free(filename);
663                         filename = NULL;
664                 }
665         }
667         /* load key bindings */
668         if (filename) {
669                 read_rc_file(filename);
670                 g_free(filename);
671                 filename = NULL;
672         }
674         return 0;