Code

conf.c: use g_mkdir for WIN32 compatibility
[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_WELCOME_SCREEN_LIST "welcome-screen-list"
76 #define CONF_DISPLAY_TIME "display-time"
77 #define CONF_JUMP_PREFIX_ONLY "jump-prefix-only"
78 #define CONF_LYRICS_AUTOSAVE "lyrics-autosave"
79 #define CONF_LYRICS_SHOW_PLUGIN "lyrics-show-plugin"
80 #define CONF_TEXT_EDITOR "text-editor"
81 #define CONF_TEXT_EDITOR_ASK "text-editor-ask"
82 #define CONF_SECOND_COLUMN "second-column"
84 static bool
85 str2bool(char *str)
86 {
87         return strcasecmp(str, "yes") == 0 || strcasecmp(str, "true") == 0 ||
88                 strcasecmp(str, "on") == 0 || strcasecmp(str, "1") == 0;
89 }
91 static void
92 print_error(const char *msg, const char *input)
93 {
94         fprintf(stderr, "%s: %s ('%s')\n",
95                 /* To translators: prefix for error messages */
96                 _("Error"), msg, input);
97 }
99 static int
100 parse_key_value(char *str, char **end)
102         if (*str == '\'') {
103                 if (str[1] == '\'' || str[2] != '\'') {
104                         print_error(_("Malformed hotkey definition"), str);
105                         return -1;
106                 }
108                 *end = str + 3;
109                 return str[1];
110         } else {
111                 long value = strtol(str, end, 0);
112                 if (*end == str) {
113                         print_error(_("Malformed hotkey definition"), str);
114                         return -1;
115                 }
117                 return (int)value;
118         }
121 static int
122 parse_key_definition(char *str)
124         char buf[MAX_LINE_LENGTH];
125         char *p;
126         size_t len = strlen(str), i;
127         int j,key;
128         int keys[MAX_COMMAND_KEYS];
129         command_t cmd;
131         /* get the command name */
132         i=0;
133         j=0;
134         memset(buf, 0, MAX_LINE_LENGTH);
135         while (i < len && str[i] != '=' && !g_ascii_isspace(str[i]))
136                 buf[j++] = str[i++];
137         if( (cmd=get_key_command_from_name(buf)) == CMD_NONE ) {
138                 /* the hotkey configuration contains an unknown
139                    command */
140                 print_error(_("Unknown command"), buf);
141                 return -1;
142         }
144         /* skip whitespace */
145         while (i < len && (str[i] == '=' || g_ascii_isspace(str[i])))
146                 i++;
148         /* get the value part */
149         memset(buf, 0, MAX_LINE_LENGTH);
150         g_strlcpy(buf, str+i, MAX_LINE_LENGTH);
151         if (*buf == 0) {
152                 /* the hotkey configuration line is incomplete */
153                 print_error(_("Incomplete hotkey configuration"), str);
154                 return -1;
155         }
157         /* parse key values */
158         i = 0;
159         key = 0;
160         p = buf;
161         memset(keys, 0, sizeof(int)*MAX_COMMAND_KEYS);
162         while (i < MAX_COMMAND_KEYS && *p != 0 &&
163                (key = parse_key_value(p, &p)) >= 0) {
164                 keys[i++] = key;
165                 while (*p==',' || *p==' ' || *p=='\t')
166                         p++;
167         }
169         if (key < 0)
170                 return -1;
172         return assign_keys(cmd, keys);
175 static bool
176 parse_timedisplay_type(const char *str)
178         if (strcmp(str, "elapsed") == 0)
179                 return false;
180         else if (strcmp(str, "remaining") == 0)
181                 return true;
182         else {
183                 /* translators: ncmpc supports displaying the
184                    "elapsed" or "remaining" time of a song being
185                    played; in this case, the configuration file
186                    contained an invalid setting */
187                 print_error(_("Bad time display type"), str);
188                 return false;
189         }
192 #ifdef ENABLE_COLORS
193 static char *
194 separate_value(char *p)
196         char *value;
198         value = strchr(p, '=');
199         if (value == NULL) {
200                 /* an equals sign '=' was expected while parsing a
201                    configuration file line */
202                 fprintf(stderr, "%s\n", _("Missing '='"));
203                 return NULL;
204         }
206         *value++ = 0;
208         g_strchomp(p);
209         return g_strchug(value);
212 static int
213 parse_color(char *str)
215         char *value;
217         value = separate_value(str);
218         if (value == NULL)
219                 return -1;
221         return colors_assign(str, value);
224 /**
225  * Returns the first non-whitespace character after the next comma
226  * character, or the end of the string.  This is used to parse comma
227  * separated values.
228  */
229 static char *
230 after_comma(char *p)
232         char *comma = strchr(p, ',');
234         if (comma != NULL) {
235                 *comma++ = 0;
236                 comma = g_strchug(comma);
237         } else
238                 comma = p + strlen(p);
240         g_strchomp(p);
241         return comma;
244 static int
245 parse_color_definition(char *str)
247         char buf[MAX_LINE_LENGTH];
248         char *value;
249         short color, rgb[3];
251         value = separate_value(str);
252         if (value == NULL)
253                 return -1;
255         /* get the command name */
256         color = colors_str2color(str);
257         if (color < 0) {
258                 print_error(_("Bad color name"), buf);
259                 return -1;
260         }
262         /* parse r,g,b values */
264         for (unsigned i = 0; i < 3; ++i) {
265                 char *next = after_comma(value), *endptr;
266                 if (*value == 0) {
267                         print_error(_("Incomplete color definition"), str);
268                         return -1;
269                 }
271                 rgb[i] = strtol(value, &endptr, 0);
272                 if (endptr == value || *endptr != 0) {
273                         print_error(_("Invalid number"), value);
274                         return -1;
275                 }
277                 value = next;
278         }
280         if (*value != 0) {
281                 print_error(_("Malformed color definition"), str);
282                 return -1;
283         }
285         return colors_define(str, rgb[0], rgb[1], rgb[2]);
287 #endif
289 static char *
290 get_format(char *str)
292         gsize len = strlen(str);
294         if (str && str[0]=='\"' && str[len-1] == '\"') {
295                 str[len - 1] = '\0';
296                 str++;
297         }
299         return g_strdup(str);
302 static char **
303 check_screen_list(char *value)
305         char **tmp = g_strsplit_set(value, " \t,", 100);
306         char **screen = NULL;
307         int i = 0, j = 0;
309         while( tmp && tmp[i] ) {
310                 char *name = g_ascii_strdown(tmp[i], -1);
311                 if (*name != '\0') {
312                         if (screen_lookup_name(name) == NULL) {
313                                 /* an unknown screen name was specified in the
314                                    configuration file */
315                                 print_error(_("Unknown screen name"), name);
316                                 free(name);
317                         } else {
318                                 screen = g_realloc(screen, (j+2)*sizeof(char *));
319                                 screen[j++] = name;
320                                 screen[j] = NULL;
321                         }
322                 }
323                 i++;
324         }
325         g_strfreev(tmp);
326         if( screen == NULL )
327                 return g_strsplit_set(DEFAULT_SCREEN_LIST, " ", 0);
329         return screen;
332 static int
333 get_search_mode(char *value)
335         char * test;
336         int mode;
337         mode= strtol(value, &test, 10);
338         if (*test == '\0')
339         {
340                 if (0 <= mode && mode <= 4)
341                         return mode;
342                 else
343                 {
344                         print_error(_("Invalid search mode"),value);
345                         return 0;
346                 }
347         }
348         else
349         {
350                 for (int i = 0; value[i] != '\0'; i++)
351                         value[i] = tolower(value[i]);
353                 // TODO: modify screen_search so that its own list of modes can be used
354                 // for comparison instead of specifying them here
355                 if (strcmp(value, "title") == 0)
356                         return 0;
357                 else if (strcmp(value, "artist") == 0)
358                         return 1;
359                 else if (strcmp(value, "album") == 0)
360                         return 2;
361                 else if (strcmp(value, "filename") == 0)
362                         return 3;
363                 else if (strcmp(value, "artist+album") == 0)
364                         return 4;
365                 else
366                 {
367                         print_error(_("Unknown search mode"),value);
368                         return 0;
369                 }
370         }
373 static bool
374 parse_line(char *line)
376         size_t len = strlen(line), i = 0, j = 0;
377         char name[MAX_LINE_LENGTH];
378         char value[MAX_LINE_LENGTH];
379         bool match_found;
381         /* get the name part */
382         while (i < len && line[i] != '=' && !g_ascii_isspace(line[i]))
383                 name[j++] = line[i++];
385         name[j] = '\0';
387         /* skip '=' and whitespace */
388         while (i < len && (line[i] == '=' || g_ascii_isspace(line[i])))
389                 i++;
391         /* get the value part */
392         j = 0;
393         while (i < len)
394                 value[j++] = line[i++];
395         value[j] = '\0';
397         match_found = true;
399         /* key definition */
400         if (!strcasecmp(CONF_KEY_DEFINITION, name))
401                 parse_key_definition(value);
402         /* enable colors */
403         else if(!strcasecmp(CONF_ENABLE_COLORS, name))
404 #ifdef ENABLE_COLORS
405                 options.enable_colors = str2bool(value);
406 #else
407         {}
408 #endif
409         else if (!strcasecmp(CONF_SCROLL_OFFSET, name))
410                 options.scroll_offset = atoi(value);
411         /* auto center */
412         else if (!strcasecmp(CONF_AUTO_CENTER, name))
413                 options.auto_center = str2bool(value);
414         /* color assignment */
415         else if (!strcasecmp(CONF_COLOR, name))
416 #ifdef ENABLE_COLORS
417                 parse_color(value);
418 #else
419         {}
420 #endif
421         /* wide cursor */
422         else if (!strcasecmp(CONF_WIDE_CURSOR, name))
423                 options.wide_cursor = str2bool(value);
424         else if (strcasecmp(name, "hardware-cursor") == 0)
425                 options.hardware_cursor = str2bool(value);
426         /* welcome screen list */
427         else if (!strcasecmp(CONF_WELCOME_SCREEN_LIST, name))
428                 options.welcome_screen_list = str2bool(value);
429         /* visible bitrate */
430         else if (!strcasecmp(CONF_VISIBLE_BITRATE, name))
431                 options.visible_bitrate = str2bool(value);
432         /* timer display type */
433         else if (!strcasecmp(CONF_TIMEDISPLAY_TYPE, name))
434                 options.display_remaining_time = parse_timedisplay_type(value);
435                 /* color definition */
436         else if (!strcasecmp(CONF_COLOR_DEFINITION, name))
437 #ifdef ENABLE_COLORS
438                 parse_color_definition(value);
439 #else
440         {}
441 #endif
442         /* list format string */
443         else if (!strcasecmp(CONF_LIST_FORMAT, name)) {
444                 g_free(options.list_format);
445                 options.list_format = get_format(value);
446                 /* status format string */
447         } else if (!strcasecmp(CONF_STATUS_FORMAT, name)) {
448                 g_free(options.status_format);
449                 options.status_format = get_format(value);
450                 /* xterm title format string */
451         } else if (!strcasecmp(CONF_XTERM_TITLE_FORMAT, name)) {
452                 g_free(options.xterm_title_format);
453                 options.xterm_title_format = get_format(value);
454         } else if (!strcasecmp(CONF_LIST_WRAP, name))
455                 options.list_wrap = str2bool(value);
456         else if (!strcasecmp(CONF_FIND_WRAP, name))
457                 options.find_wrap = str2bool(value);
458         else if (!strcasecmp(CONF_FIND_SHOW_LAST,name))
459                 options.find_show_last_pattern = str2bool(value);
460         else if (!strcasecmp(CONF_AUDIBLE_BELL, name))
461                 options.audible_bell = str2bool(value);
462         else if (!strcasecmp(CONF_VISIBLE_BELL, name))
463                 options.visible_bell = str2bool(value);
464         else if (!strcasecmp(CONF_BELL_ON_WRAP, name))
465                 options.bell_on_wrap = str2bool(value);
466         else if (!strcasecmp(CONF_STATUS_MESSAGE_TIME, name))
467                 options.status_message_time = atoi(value);
468         else if (!strcasecmp(CONF_XTERM_TITLE, name))
469                 options.enable_xterm_title = str2bool(value);
470         else if (!strcasecmp(CONF_ENABLE_MOUSE, name))
471 #ifdef HAVE_GETMOUSE
472                 options.enable_mouse = str2bool(value);
473 #else
474         {}
475 #endif
476         else if (!strcasecmp(CONF_CROSSFADE_TIME, name))
477                 options.crossfade_time = atoi(value);
478         else if (!strcasecmp(CONF_SEARCH_MODE, name))
479                 options.search_mode = get_search_mode(value);
480         else if (!strcasecmp(CONF_HIDE_CURSOR, name))
481                 options.hide_cursor = atoi(value);
482         else if (!strcasecmp(CONF_SEEK_TIME, name))
483                 options.seek_time = atoi(value);
484         else if (!strcasecmp(CONF_SCREEN_LIST, name)) {
485                 g_strfreev(options.screen_list);
486                 options.screen_list = check_screen_list(value);
487         } else if (!strcasecmp(CONF_HOST, name))
488                 options.host = get_format(value);
489         else if (!strcasecmp(CONF_PORT, name))
490                 options.port = atoi(get_format(value));
491         else if (!strcasecmp(CONF_PASSWORD, name))
492                 options.password = get_format(value);
493         else if (!strcasecmp(CONF_TIMEOUT, name))
494                 options.timeout_ms = atoi(get_format(value))
495                                      * 1000 /* seconds -> milliseconds */;
496         else if (!strcasecmp(CONF_LYRICS_TIMEOUT, name))
497 #ifdef ENABLE_LYRICS_SCREEN
498                 options.lyrics_timeout = atoi(get_format(value));
499 #else
500         {}
501 #endif
502         else if (!strcasecmp(CONF_SCROLL, name))
503                 options.scroll = str2bool(value);
504         else if (!strcasecmp(CONF_SCROLL_SEP, name)) {
505                 g_free(options.scroll_sep);
506                 options.scroll_sep = get_format(value);
507         } else if (!strcasecmp(CONF_DISPLAY_TIME, name))
508 #ifdef NCMPC_MINI
509                 {}
510 #else
511                 options.display_time = str2bool(value);
512 #endif
513         else if (!strcasecmp(CONF_JUMP_PREFIX_ONLY, name))
514 #ifdef NCMPC_MINI
515                 {}
516 #else
517                 options.jump_prefix_only = str2bool(value);
518 #endif
519         else if (!strcasecmp(CONF_LYRICS_AUTOSAVE, name))
520 #ifdef ENABLE_LYRICS_SCREEN
521                 options.lyrics_autosave = str2bool(value);
522 #else
523         {}
524 #endif
525         else if (!strcasecmp(CONF_LYRICS_SHOW_PLUGIN, name))
526 #ifdef ENABLE_LYRICS_SCREEN
527                 options.lyrics_show_plugin = str2bool(value);
528 #else
529                 {}
530 #endif
531         else if (!strcasecmp(name, CONF_TEXT_EDITOR))
532 #ifdef ENABLE_LYRICS_SCREEN
533                 {
534                         g_free(options.text_editor);
535                         options.text_editor = get_format(value);
536                 }
537 #else
538                 {}
539 #endif
540         else if (!strcasecmp(name, CONF_TEXT_EDITOR_ASK))
541 #ifdef ENABLE_LYRICS_SCREEN
542                 options.text_editor_ask = str2bool(value);
543 #else
544                 {}
545 #endif
546         else if (!strcasecmp(CONF_SECOND_COLUMN, name))
547 #ifdef NCMPC_MINI
548                 {}
549 #else
550                 options.second_column = str2bool(value);
551 #endif
552         else
553                 match_found = false;
555         if (!match_found)
556                 print_error(_("Unknown configuration parameter"), name);
558         return match_found;
561 static int
562 read_rc_file(char *filename)
564         FILE *file;
565         char line[MAX_LINE_LENGTH];
567         if (filename == NULL)
568                 return -1;
570         file = fopen(filename, "r");
571         if (file == NULL) {
572                         perror(filename);
573                         return -1;
574                 }
576         while (fgets(line, sizeof(line), file) != NULL) {
577                 char *p = g_strchug(line);
579                 if (*p != 0 && *p != COMMENT_TOKEN)
580                         parse_line(g_strchomp(p));
581         }
583         fclose(file);
584         return 0;
587 int
588 check_user_conf_dir(void)
590         int retval;
591         char *directory = g_build_filename(g_get_home_dir(), "." PACKAGE, NULL);
593         if (g_file_test(directory, G_FILE_TEST_IS_DIR)) {
594                 g_free(directory);
595                 return 0;
596         }
598         retval = g_mkdir(directory, 0755);
599         g_free(directory);
600         return retval;
603 char *
604 get_user_key_binding_filename(void)
606         return g_build_filename(g_get_home_dir(), "." PACKAGE, "keys", NULL);
609 int
610 read_configuration(void)
612         char *filename = NULL;
614         /* check for command line configuration file */
615         if (options.config_file)
616                 filename = g_strdup(options.config_file);
618         /* check for user configuration ~/.ncmpc/config */
619         if (filename == NULL) {
620                 filename = g_build_filename(g_get_home_dir(),
621                                             "." PACKAGE, "config", NULL);
622                 if (!g_file_test(filename, G_FILE_TEST_IS_REGULAR)) {
623                         g_free(filename);
624                         filename = NULL;
625                 }
626         }
628         /* check for  global configuration SYSCONFDIR/ncmpc/config */
629         if (filename == NULL) {
630                 filename = g_build_filename(SYSCONFDIR, PACKAGE, "config", NULL);
631                 if (!g_file_test(filename, G_FILE_TEST_IS_REGULAR)) {
632                         g_free(filename);
633                         filename = NULL;
634                 }
635         }
637         /* load configuration */
638         if (filename) {
639                 read_rc_file(filename);
640                 g_free(filename);
641                 filename = NULL;
642         }
644         /* check for command line key binding file */
645         if (options.key_file)
646                 filename = g_strdup(options.key_file);
648         /* check for  user key bindings ~/.ncmpc/keys */
649         if (filename == NULL) {
650                 filename = get_user_key_binding_filename();
651                 if (!g_file_test(filename, G_FILE_TEST_IS_REGULAR)) {
652                         g_free(filename);
653                         filename = NULL;
654                 }
655         }
657         /* check for  global key bindings SYSCONFDIR/ncmpc/keys */
658         if (filename == NULL) {
659                 filename = g_build_filename(SYSCONFDIR, PACKAGE, "keys", NULL);
660                 if (!g_file_test(filename, G_FILE_TEST_IS_REGULAR)) {
661                         g_free(filename);
662                         filename = NULL;
663                 }
664         }
666         /* load key bindings */
667         if (filename) {
668                 read_rc_file(filename);
669                 g_free(filename);
670                 filename = NULL;
671         }
673         return 0;