2 * This file is part of DisOrder.
3 * Copyright (C) 2004, 2005, 2006, 2007 Richard Kettlewell
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, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * 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
26 #include <sys/types.h>
27 #include <sys/socket.h>
44 #include "configuration.h"
56 #include "trackname.h"
58 static void expand(cgi_sink *output,
61 static void expandstring(cgi_sink *output,
71 static const char *nonce(void) {
72 static unsigned long count;
75 byte_xasprintf(&s, "%lx%lx%lx",
76 (unsigned long)time(0),
77 (unsigned long)getpid(),
82 static int compare_entry(const void *a, const void *b) {
83 const struct entry *ea = a, *eb = b;
85 return compare_tracks(ea->sort, eb->sort,
86 ea->display, eb->display,
90 static const char *front_url(void) {
94 /* preserve management interface visibility */
95 if((mgmt = cgi_get("mgmt")) && !strcmp(mgmt, "true")) {
96 byte_xasprintf(&url, "%s?mgmt=true", config->url);
102 static void redirect(struct sink *output) {
105 cgi_header(output, "Location",
106 (back = cgi_get("back")) ? back : front_url());
110 static void lookups(dcgi_state *ds, unsigned want) {
112 struct queue_entry *r, *rnext;
113 const char *dir, *re;
115 if(ds->g->client && (need = want ^ (ds->g->flags & want)) != 0) {
117 disorder_queue(ds->g->client, &ds->g->queue);
118 if(need & DC_PLAYING)
119 disorder_playing(ds->g->client, &ds->g->playing);
121 disorder_new_tracks(ds->g->client, &ds->g->new, &ds->g->nnew, 0);
122 if(need & DC_RECENT) {
123 /* we need to reverse the order of the list */
124 disorder_recent(ds->g->client, &r);
127 r->next = ds->g->recent;
133 disorder_get_volume(ds->g->client,
134 &ds->g->volume_left, &ds->g->volume_right);
135 if(need & (DC_FILES|DC_DIRS)) {
136 if(!(dir = cgi_get("directory")))
138 re = cgi_get("regexp");
140 if(disorder_directories(ds->g->client, dir, re,
141 &ds->g->dirs, &ds->g->ndirs))
144 if(disorder_files(ds->g->client, dir, re,
145 &ds->g->files, &ds->g->nfiles))
148 ds->g->flags |= need;
152 /* actions ********************************************************************/
154 static void act_disable(cgi_sink *output,
157 disorder_disable(ds->g->client);
158 redirect(output->sink);
161 static void act_enable(cgi_sink *output,
164 disorder_enable(ds->g->client);
165 redirect(output->sink);
168 static void act_random_disable(cgi_sink *output,
171 disorder_random_disable(ds->g->client);
172 redirect(output->sink);
175 static void act_random_enable(cgi_sink *output,
178 disorder_random_enable(ds->g->client);
179 redirect(output->sink);
182 static void act_remove(cgi_sink *output,
186 if(!(id = cgi_get("id"))) fatal(0, "missing id argument");
188 disorder_remove(ds->g->client, id);
189 redirect(output->sink);
192 static void act_move(cgi_sink *output,
194 const char *id, *delta;
196 if(!(id = cgi_get("id"))) fatal(0, "missing id argument");
197 if(!(delta = cgi_get("delta"))) fatal(0, "missing delta argument");
199 disorder_move(ds->g->client, id, atoi(delta));
200 redirect(output->sink);
203 static void act_scratch(cgi_sink *output,
206 disorder_scratch(ds->g->client, cgi_get("id"));
207 redirect(output->sink);
210 static void act_playing(cgi_sink *output, dcgi_state *ds) {
212 long refresh = config->refresh, length;
214 int random_enabled = 0;
217 lookups(ds, DC_PLAYING|DC_QUEUE);
218 cgi_header(output->sink, "Content-Type", "text/html");
219 disorder_random_enabled(ds->g->client, &random_enabled);
220 disorder_enabled(ds->g->client, &enabled);
222 && ds->g->playing->state == playing_started /* i.e. not paused */
223 && !disorder_length(ds->g->client, ds->g->playing->track, &length)
225 && ds->g->playing->sofar >= 0) {
226 /* Try to put the next refresh at the start of the next track. */
228 fin = now + length - ds->g->playing->sofar + config->gap;
229 if(now + refresh > fin)
232 if(ds->g->queue && ds->g->queue->state == playing_isscratch) {
233 /* next track is a scratch, don't leave more than the inter-track gap */
234 if(refresh > config->gap)
235 refresh = config->gap;
237 if(!ds->g->playing && ((ds->g->queue
238 && ds->g->queue->state != playing_random)
239 || random_enabled) && enabled) {
240 /* no track playing but playing is enabled and there is something coming
241 * up, must be in a gap */
242 if(refresh > config->gap)
243 refresh = config->gap;
245 byte_snprintf(r, sizeof r, "%ld;url=%s", refresh > 0 ? refresh : 1,
247 cgi_header(output->sink, "Refresh", r);
248 cgi_body(output->sink);
249 expand(output, "playing", ds);
252 static void act_play(cgi_sink *output,
254 const char *track, *dir;
259 if((track = cgi_get("file"))) {
260 disorder_play(ds->g->client, track);
261 } else if((dir = cgi_get("directory"))) {
262 if(disorder_files(ds->g->client, dir, 0, &tracks, &ntracks)) ntracks = 0;
264 e = xmalloc(ntracks * sizeof (struct entry));
265 for(n = 0; n < ntracks; ++n) {
266 e[n].path = tracks[n];
267 e[n].sort = trackname_transform("track", tracks[n], "sort");
268 e[n].display = trackname_transform("track", tracks[n], "display");
270 qsort(e, ntracks, sizeof (struct entry), compare_entry);
271 for(n = 0; n < ntracks; ++n)
272 disorder_play(ds->g->client, e[n].path);
275 /* XXX error handling */
276 redirect(output->sink);
279 static int clamp(int n, int min, int max) {
287 static const char *volume_url(void) {
290 byte_xasprintf(&url, "%s?action=volume", config->url);
294 static void act_volume(cgi_sink *output, dcgi_state *ds) {
295 const char *l, *r, *d, *back;
296 int nd, changed = 0;;
298 if((d = cgi_get("delta"))) {
299 lookups(ds, DC_VOLUME);
300 nd = clamp(atoi(d), -255, 255);
301 disorder_set_volume(ds->g->client,
302 clamp(ds->g->volume_left + nd, 0, 255),
303 clamp(ds->g->volume_right + nd, 0, 255));
305 } else if((l = cgi_get("left")) && (r = cgi_get("right"))) {
306 disorder_set_volume(ds->g->client, atoi(l), atoi(r));
310 /* redirect back to ourselves (but without the volume-changing bits in the
312 cgi_header(output->sink, "Location",
313 (back = cgi_get("back")) ? back : volume_url());
314 cgi_body(output->sink);
316 cgi_header(output->sink, "Content-Type", "text/html");
317 cgi_body(output->sink);
318 expand(output, "volume", ds);
322 static void act_prefs_errors(const char *msg,
323 void attribute((unused)) *u) {
324 fatal(0, "error splitting parts list: %s", msg);
327 static const char *numbered_arg(const char *argname, int numfile) {
330 byte_xasprintf(&fullname, "%d_%s", numfile, argname);
331 return cgi_get(fullname);
334 static void process_prefs(dcgi_state *ds, int numfile) {
335 const char *file, *name, *value, *part, *parts, *current, *context;
338 if(!(file = numbered_arg("file", numfile)))
339 /* The first file doesn't need numbering. */
340 if(numfile > 0 || !(file = cgi_get("file")))
342 if((parts = numbered_arg("parts", numfile))
343 || (parts = cgi_get("parts"))) {
344 /* Default context is display. Other contexts not actually tested. */
345 if(!(context = numbered_arg("context", numfile))) context = "display";
346 partslist = split(parts, 0, 0, act_prefs_errors, 0);
347 while((part = *partslist++)) {
348 if(!(value = numbered_arg(part, numfile)))
350 /* If it's already right (whether regexps or db) don't change anything,
351 * so we don't fill the database up with rubbish. */
352 if(disorder_part(ds->g->client, (char **)¤t,
353 file, context, part))
354 fatal(0, "disorder_part() failed");
355 if(!strcmp(current, value))
357 byte_xasprintf((char **)&name, "trackname_%s_%s", context, part);
358 disorder_set(ds->g->client, file, name, value);
360 if((value = numbered_arg("random", numfile)))
361 disorder_unset(ds->g->client, file, "pick_at_random");
363 disorder_set(ds->g->client, file, "pick_at_random", "0");
364 if((value = numbered_arg("tags", numfile)))
365 disorder_set(ds->g->client, file, "tags", value);
366 } else if((name = cgi_get("name"))) {
367 /* Raw preferences. Not well supported in the templates at the moment. */
368 value = cgi_get("value");
370 disorder_set(ds->g->client, file, name, value);
372 disorder_unset(ds->g->client, file, name);
376 static void act_prefs(cgi_sink *output, dcgi_state *ds) {
380 if((files = cgi_get("files"))) nfiles = atoi(files);
382 for(numfile = 0; numfile < nfiles; ++numfile)
383 process_prefs(ds, numfile);
384 cgi_header(output->sink, "Content-Type", "text/html");
385 cgi_body(output->sink);
386 expand(output, "prefs", ds);
389 static void act_pause(cgi_sink *output,
392 disorder_pause(ds->g->client);
393 redirect(output->sink);
396 static void act_resume(cgi_sink *output,
399 disorder_resume(ds->g->client);
400 redirect(output->sink);
403 static const struct action {
405 void (*handler)(cgi_sink *output, dcgi_state *ds);
407 { "disable", act_disable },
408 { "enable", act_enable },
409 { "move", act_move },
410 { "pause", act_pause },
411 { "play", act_play },
412 { "playing", act_playing },
413 { "prefs", act_prefs },
414 { "random-disable", act_random_disable },
415 { "random-enable", act_random_enable },
416 { "remove", act_remove },
417 { "resume", act_resume },
418 { "scratch", act_scratch },
419 { "volume", act_volume },
422 /* expansions *****************************************************************/
424 static void exp_include(int attribute((unused)) nargs,
428 expand(output, args[0], u);
431 static void exp_server_version(int attribute((unused)) nargs,
432 char attribute((unused)) **args,
439 if(disorder_version(ds->g->client, (char **)&v)) v = "(cannot get version)";
441 v = "(server not running)";
442 cgi_output(output, "%s", v);
445 static void exp_version(int attribute((unused)) nargs,
446 char attribute((unused)) **args,
448 void attribute((unused)) *u) {
449 cgi_output(output, "%s", disorder_version_string);
452 static void exp_nonce(int attribute((unused)) nargs,
453 char attribute((unused)) **args,
455 void attribute((unused)) *u) {
456 cgi_output(output, "%s", nonce());
459 static void exp_label(int attribute((unused)) nargs,
462 void attribute((unused)) *u) {
463 cgi_output(output, "%s", cgi_label(args[0]));
466 struct trackinfo_state {
468 const struct queue_entry *q;
473 static void exp_who(int attribute((unused)) nargs,
474 char attribute((unused)) **args,
479 if(ds->track && ds->track->submitter)
480 cgi_output(output, "%s", ds->track->submitter);
483 static void exp_length(int attribute((unused)) nargs,
484 char attribute((unused)) **args,
491 && (ds->track->state == playing_started
492 || ds->track->state == playing_paused)
493 && ds->track->sofar >= 0)
494 cgi_output(output, "%ld:%02ld/",
495 ds->track->sofar / 60, ds->track->sofar % 60);
498 disorder_length(ds->g->client, ds->track->track, &length);
500 disorder_length(ds->g->client, ds->tracks[0], &length);
502 cgi_output(output, "%ld:%02ld", length / 60, length % 60);
504 sink_printf(output->sink, "%s", " ");
507 static void exp_when(int attribute((unused)) nargs,
508 char attribute((unused)) **args,
512 const struct tm *w = 0;
515 switch(ds->track->state) {
516 case playing_isscratch:
517 case playing_unplayed:
519 if(ds->track->expected)
520 w = localtime(&ds->track->expected);
523 case playing_no_player:
525 case playing_scratched:
526 case playing_started:
528 case playing_quitting:
529 if(ds->track->played)
530 w = localtime(&ds->track->played);
534 cgi_output(output, "%d:%02d", w->tm_hour, w->tm_min);
536 sink_printf(output->sink, " ");
539 static void exp_part(int nargs,
544 const char *s, *track, *part, *context;
550 track = ds->track->track;
552 track = ds->tracks[0];
570 if(disorder_part(ds->g->client, (char **)&s, track, context, part))
571 fatal(0, "disorder_part() failed");
572 cgi_output(output, "%s", s);
574 sink_printf(output->sink, " ");
577 static void exp_playing(int attribute((unused)) nargs,
584 lookups(ds, DC_PLAYING);
585 memset(&s, 0, sizeof s);
588 s.track = ds->g->playing;
589 expandstring(output, args[0], &s);
593 static void exp_queue(int attribute((unused)) nargs,
599 struct queue_entry *q;
601 lookups(ds, DC_QUEUE);
602 memset(&s, 0, sizeof s);
605 for(q = ds->g->queue; q; q = q->next) {
608 expandstring(output, args[0], &s);
614 static void exp_recent(int attribute((unused)) nargs,
620 struct queue_entry *q;
622 lookups(ds, DC_RECENT);
623 memset(&s, 0, sizeof s);
626 for(q = ds->g->recent; q; q = q->next) {
629 expandstring(output, args[0], &s);
635 static void exp_new(int attribute((unused)) nargs,
643 memset(&s, 0, sizeof s);
646 for(s.index = 0; s.index < ds->g->nnew; ++s.index) {
647 s.last = s.index + 1 < ds->g->nnew;
648 s.tracks = &ds->g->new[s.index];
649 expandstring(output, args[0], &s);
654 static void exp_url(int attribute((unused)) nargs,
655 char attribute((unused)) **args,
657 void attribute((unused)) *u) {
658 cgi_output(output, "%s", config->url);
666 static int compare_result(const void *a, const void *b) {
667 const struct result *ra = a, *rb = b;
670 if(!(c = strcmp(ra->sort, rb->sort)))
671 c = strcmp(ra->track, rb->track);
675 static void exp_search(int nargs,
679 dcgi_state *ds = u, substate;
681 const char *q, *context, *part, *template;
697 assert(!"should never happen");
698 part = context = template = 0; /* quieten compiler */
700 if(ds->tracks == 0) {
701 /* we are the top level, let's get some search results */
702 if(!(q = cgi_get("query"))) return; /* no results yet */
703 if(disorder_search(ds->g->client, q, &tracks, &ntracks)) return;
707 ntracks = ds->ntracks;
709 assert(ntracks != 0);
710 /* sort tracks by the appropriate part */
711 r = xmalloc(ntracks * sizeof *r);
712 for(n = 0; n < ntracks; ++n) {
713 r[n].track = tracks[n];
714 if(disorder_part(ds->g->client, (char **)&r[n].sort,
715 tracks[n], context, part))
716 fatal(0, "disorder_part() failed");
718 qsort(r, ntracks, sizeof (struct result), compare_result);
719 /* expand the 2nd arg once for each group. We re-use the passed-in tracks
720 * array as we know it's guaranteed to be big enough and isn't going to be
721 * used for anything else any more. */
722 memset(&substate, 0, sizeof substate);
727 substate.tracks = tracks;
728 substate.ntracks = 0;
731 && !strcmp(r[m].sort, r[n].sort))
732 tracks[substate.ntracks++] = r[m++].track;
733 substate.last = (m == ntracks);
734 expandstring(output, template, &substate);
739 assert(substate.last != 0);
742 static void exp_arg(int attribute((unused)) nargs,
745 void attribute((unused)) *u) {
748 if((v = cgi_get(args[0])))
749 cgi_output(output, "%s", v);
752 static void exp_stats(int attribute((unused)) nargs,
753 char attribute((unused)) **args,
759 cgi_opentag(output->sink, "pre", "class", "stats", (char *)0);
760 if(!disorder_stats(ds->g->client, &v, 0)) {
762 cgi_output(output, "%s\n", *v++);
764 cgi_closetag(output->sink, "pre");
767 static void exp_volume(int attribute((unused)) nargs,
773 lookups(ds, DC_VOLUME);
774 if(!strcmp(args[0], "left"))
775 cgi_output(output, "%d", ds->g->volume_left);
777 cgi_output(output, "%d", ds->g->volume_right);
780 static void exp_shell(int attribute((unused)) nargs,
783 void attribute((unused)) *u) {
789 if(!(pid = xfork())) {
794 execlp("sh", "sh", "-c", args[0], (char *)0);
795 fatal(errno, "error executing sh");
798 while((n = read(p[0], buffer, sizeof buffer))) {
800 if(errno == EINTR) continue;
801 else fatal(errno, "error reading from pipe");
803 output->sink->write(output->sink, buffer, n);
806 while((n = waitpid(pid, &w, 0)) < 0 && errno == EINTR)
808 if(n < 0) fatal(errno, "error calling waitpid");
810 error(0, "shell command '%s' %s", args[0], wstat(w));
813 static inline int str2bool(const char *s) {
814 return !strcmp(s, "true");
817 static inline const char *bool2str(int n) {
818 return n ? "true" : "false";
821 static char *expandarg(const char *arg, dcgi_state *ds) {
827 output.sink = sink_dynstr(&d);
828 expandstring(&output, arg, ds);
829 dynstr_terminate(&d);
833 static void exp_prefs(int attribute((unused)) nargs,
840 const char *file = expandarg(args[0], ds);
842 memset(&substate, 0, sizeof substate);
845 if(disorder_prefs(ds->g->client, file, &k)) return;
847 substate.last = !k->next;
849 expandstring(output, args[1], &substate);
856 static void exp_pref(int attribute((unused)) nargs,
863 if(!disorder_get(ds->g->client, args[0], args[1], &value))
864 cgi_output(output, "%s", value);
867 static void exp_if(int nargs,
872 int n = str2bool(expandarg(args[0], ds)) ? 1 : 2;
875 expandstring(output, args[n], ds);
878 static void exp_and(int nargs,
885 for(n = 0; n < nargs; ++n)
886 if(!str2bool(expandarg(args[n], ds))) {
890 sink_printf(output->sink, "%s", bool2str(result));
893 static void exp_or(int nargs,
900 for(n = 0; n < nargs; ++n)
901 if(str2bool(expandarg(args[n], ds))) {
905 sink_printf(output->sink, "%s", bool2str(result));
908 static void exp_not(int attribute((unused)) nargs,
911 void attribute((unused)) *u) {
912 sink_printf(output->sink, "%s", bool2str(!str2bool(args[0])));
915 static void exp_isplaying(int attribute((unused)) nargs,
916 char attribute((unused)) **args,
921 lookups(ds, DC_PLAYING);
922 sink_printf(output->sink, "%s", bool2str(!!ds->g->playing));
925 static void exp_isqueue(int attribute((unused)) nargs,
926 char attribute((unused)) **args,
931 lookups(ds, DC_QUEUE);
932 sink_printf(output->sink, "%s", bool2str(!!ds->g->queue));
935 static void exp_isrecent(int attribute((unused)) nargs,
936 char attribute((unused)) **args,
941 lookups(ds, DC_RECENT);
942 sink_printf(output->sink, "%s", bool2str(!!ds->g->recent));
945 static void exp_isnew(int attribute((unused)) nargs,
946 char attribute((unused)) **args,
952 sink_printf(output->sink, "%s", bool2str(!!ds->g->nnew));
955 static void exp_id(int attribute((unused)) nargs,
956 char attribute((unused)) **args,
962 cgi_output(output, "%s", ds->track->id);
965 static void exp_track(int attribute((unused)) nargs,
966 char attribute((unused)) **args,
972 cgi_output(output, "%s", ds->track->track);
975 static void exp_parity(int attribute((unused)) nargs,
976 char attribute((unused)) **args,
981 cgi_output(output, "%s", ds->index % 2 ? "odd" : "even");
984 static void exp_comment(int attribute((unused)) nargs,
985 char attribute((unused)) **args,
986 cgi_sink attribute((unused)) *output,
987 void attribute((unused)) *u) {
991 static void exp_prefname(int attribute((unused)) nargs,
992 char attribute((unused)) **args,
997 if(ds->pref && ds->pref->name)
998 cgi_output(output, "%s", ds->pref->name);
1001 static void exp_prefvalue(int attribute((unused)) nargs,
1002 char attribute((unused)) **args,
1007 if(ds->pref && ds->pref->value)
1008 cgi_output(output, "%s", ds->pref->value);
1011 static void exp_isfiles(int attribute((unused)) nargs,
1012 char attribute((unused)) **args,
1017 lookups(ds, DC_FILES);
1018 sink_printf(output->sink, "%s", bool2str(!!ds->g->nfiles));
1021 static void exp_isdirectories(int attribute((unused)) nargs,
1022 char attribute((unused)) **args,
1027 lookups(ds, DC_DIRS);
1028 sink_printf(output->sink, "%s", bool2str(!!ds->g->ndirs));
1031 static void exp_choose(int attribute((unused)) nargs,
1036 dcgi_state substate;
1040 const char *type, *what = expandarg(args[0], ds);
1042 if(!strcmp(what, "files")) {
1043 lookups(ds, DC_FILES);
1044 files = ds->g->files;
1045 nfiles = ds->g->nfiles;
1047 } else if(!strcmp(what, "directories")) {
1048 lookups(ds, DC_DIRS);
1049 files = ds->g->dirs;
1050 nfiles = ds->g->ndirs;
1053 error(0, "unknown @choose@ argument '%s'", what);
1056 e = xmalloc(nfiles * sizeof (struct entry));
1057 for(n = 0; n < nfiles; ++n) {
1058 e[n].path = files[n];
1059 e[n].sort = trackname_transform(type, files[n], "sort");
1060 e[n].display = trackname_transform(type, files[n], "display");
1062 qsort(e, nfiles, sizeof (struct entry), compare_entry);
1063 memset(&substate, 0, sizeof substate);
1066 for(n = 0; n < nfiles; ++n) {
1067 substate.last = (n == nfiles - 1);
1069 substate.entry = &e[n];
1070 expandstring(output, args[1], &substate);
1075 static void exp_file(int attribute((unused)) nargs,
1076 char attribute((unused)) **args,
1082 cgi_output(output, "%s", ds->entry->path);
1084 cgi_output(output, "%s", ds->track->track);
1086 cgi_output(output, "%s", ds->tracks[0]);
1089 static void exp_transform(int nargs,
1092 void attribute((unused)) *u) {
1093 const char *context = nargs > 2 ? args[2] : "display";
1095 cgi_output(output, "%s", trackname_transform(args[1], args[0], context));
1098 static void exp_urlquote(int attribute((unused)) nargs,
1101 void attribute((unused)) *u) {
1102 cgi_output(output, "%s", urlencodestring(args[0]));
1105 static void exp_scratchable(int attribute((unused)) nargs,
1106 char attribute((unused)) **args,
1108 void attribute((unused)) *u) {
1112 if(config->restrictions & RESTRICT_SCRATCH) {
1113 lookups(ds, DC_PLAYING);
1114 result = (ds->g->playing
1115 && (!ds->g->playing->submitter
1116 || !strcmp(ds->g->playing->submitter,
1117 disorder_user(ds->g->client))));
1120 sink_printf(output->sink, "%s", bool2str(result));
1123 static void exp_removable(int attribute((unused)) nargs,
1124 char attribute((unused)) **args,
1126 void attribute((unused)) *u) {
1130 if(config->restrictions & RESTRICT_REMOVE)
1132 && ds->track->submitter
1133 && !strcmp(ds->track->submitter,
1134 disorder_user(ds->g->client)));
1137 sink_printf(output->sink, "%s", bool2str(result));
1140 static void exp_navigate(int attribute((unused)) nargs,
1145 dcgi_state substate;
1146 const char *path = expandarg(args[0], ds);
1151 memset(&substate, 0, sizeof substate);
1153 ptr = path + 1; /* skip root */
1155 substate.nav_path = path;
1158 while(*ptr && *ptr != '/')
1160 substate.last = !*ptr;
1161 substate.nav_len = ptr - path;
1162 substate.nav_dirlen = dirlen;
1163 expandstring(output, args[1], &substate);
1164 dirlen = substate.nav_len;
1171 static void exp_fullname(int attribute((unused)) nargs,
1172 char attribute((unused)) **args,
1176 cgi_output(output, "%.*s", ds->nav_len, ds->nav_path);
1179 static void exp_basename(int nargs,
1187 if((s = strrchr(args[0], '/'))) ++s;
1189 cgi_output(output, "%s", s);
1191 cgi_output(output, "%.*s", ds->nav_len - ds->nav_dirlen - 1,
1192 ds->nav_path + ds->nav_dirlen + 1);
1195 static void exp_dirname(int nargs,
1203 if((s = strrchr(args[0], '/')))
1204 cgi_output(output, "%.*s", (int)(s - args[0]), args[0]);
1206 cgi_output(output, "%.*s", ds->nav_dirlen, ds->nav_path);
1209 static void exp_eq(int attribute((unused)) nargs,
1212 void attribute((unused)) *u) {
1213 cgi_output(output, "%s", bool2str(!strcmp(args[0], args[1])));
1216 static void exp_ne(int attribute((unused)) nargs,
1219 void attribute((unused)) *u) {
1220 cgi_output(output, "%s", bool2str(strcmp(args[0], args[1])));
1223 static void exp_enabled(int attribute((unused)) nargs,
1224 char attribute((unused)) **args,
1231 disorder_enabled(ds->g->client, &enabled);
1232 cgi_output(output, "%s", bool2str(enabled));
1235 static void exp_random_enabled(int attribute((unused)) nargs,
1236 char attribute((unused)) **args,
1243 disorder_random_enabled(ds->g->client, &enabled);
1244 cgi_output(output, "%s", bool2str(enabled));
1247 static void exp_trackstate(int attribute((unused)) nargs,
1252 struct queue_entry *q;
1255 if(disorder_resolve(ds->g->client, &track, args[0])) return;
1256 lookups(ds, DC_QUEUE|DC_PLAYING);
1257 if(ds->g->playing && !strcmp(ds->g->playing->track, track))
1258 cgi_output(output, "playing");
1260 for(q = ds->g->queue; q && strcmp(q->track, track); q = q->next)
1263 cgi_output(output, "queued");
1267 static void exp_thisurl(int attribute((unused)) nargs,
1268 char attribute((unused)) **args,
1270 void attribute((unused)) *u) {
1271 kvp_set(&cgi_args, "nonce", nonce()); /* nonces had better differ! */
1272 cgi_output(output, "%s?%s", config->url, kvp_urlencode(cgi_args, 0));
1275 static void exp_isfirst(int attribute((unused)) nargs,
1276 char attribute((unused)) **args,
1281 sink_printf(output->sink, "%s", bool2str(!!ds->first));
1284 static void exp_islast(int attribute((unused)) nargs,
1285 char attribute((unused)) **args,
1290 sink_printf(output->sink, "%s", bool2str(!!ds->last));
1293 static void exp_action(int attribute((unused)) nargs,
1294 char attribute((unused)) **args,
1296 void attribute((unused)) *u) {
1297 const char *action = cgi_get("action"), *mgmt;
1299 if(!action) action = "playing";
1300 if(!strcmp(action, "playing")
1301 && (mgmt = cgi_get("mgmt"))
1302 && !strcmp(mgmt, "true"))
1304 sink_printf(output->sink, "%s", action);
1307 static void exp_resolve(int attribute((unused)) nargs,
1310 void attribute((unused)) *u) {
1314 if(!disorder_resolve(ds->g->client, &track, args[0]))
1315 sink_printf(output->sink, "%s", track);
1318 static void exp_paused(int attribute((unused)) nargs,
1319 char attribute((unused)) **args,
1325 lookups(ds, DC_PLAYING);
1326 if(ds->g->playing && ds->g->playing->state == playing_paused)
1328 cgi_output(output, "%s", bool2str(paused));
1331 static void exp_state(int attribute((unused)) nargs,
1332 char attribute((unused)) **args,
1338 cgi_output(output, "%s", playing_states[ds->track->state]);
1341 static void exp_files(int attribute((unused)) nargs,
1346 dcgi_state substate;
1347 const char *nfiles_arg, *directory;
1348 int nfiles, numfile;
1351 memset(&substate, 0, sizeof substate);
1353 if((directory = cgi_get("directory"))) {
1354 /* Prefs for whole directory. */
1355 lookups(ds, DC_FILES);
1356 /* Synthesize args for the file list. */
1357 nfiles = ds->g->nfiles;
1358 for(numfile = 0; numfile < nfiles; ++numfile) {
1359 k = xmalloc(sizeof *k);
1360 byte_xasprintf((char **)&k->name, "%d_file", numfile);
1361 k->value = ds->g->files[numfile];
1366 /* Args already present. */
1367 if((nfiles_arg = cgi_get("files"))) nfiles = atoi(nfiles_arg);
1370 for(numfile = 0; numfile < nfiles; ++numfile) {
1371 substate.index = numfile;
1372 expandstring(output, args[0], &substate);
1376 static void exp_index(int attribute((unused)) nargs,
1377 char attribute((unused)) **args,
1382 cgi_output(output, "%d", ds->index);
1385 static void exp_nfiles(int attribute((unused)) nargs,
1386 char attribute((unused)) **args,
1390 const char *files_arg;
1392 if(cgi_get("directory")) {
1393 lookups(ds, DC_FILES);
1394 cgi_output(output, "%d", ds->g->nfiles);
1395 } else if((files_arg = cgi_get("files")))
1396 cgi_output(output, "%s", files_arg);
1398 cgi_output(output, "1");
1401 static const struct cgi_expansion expansions[] = {
1402 { "#", 0, INT_MAX, EXP_MAGIC, exp_comment },
1403 { "action", 0, 0, 0, exp_action },
1404 { "and", 0, INT_MAX, EXP_MAGIC, exp_and },
1405 { "arg", 1, 1, 0, exp_arg },
1406 { "basename", 0, 1, 0, exp_basename },
1407 { "choose", 2, 2, EXP_MAGIC, exp_choose },
1408 { "dirname", 0, 1, 0, exp_dirname },
1409 { "enabled", 0, 0, 0, exp_enabled },
1410 { "eq", 2, 2, 0, exp_eq },
1411 { "file", 0, 0, 0, exp_file },
1412 { "files", 1, 1, EXP_MAGIC, exp_files },
1413 { "fullname", 0, 0, 0, exp_fullname },
1414 { "id", 0, 0, 0, exp_id },
1415 { "if", 2, 3, EXP_MAGIC, exp_if },
1416 { "include", 1, 1, 0, exp_include },
1417 { "index", 0, 0, 0, exp_index },
1418 { "isdirectories", 0, 0, 0, exp_isdirectories },
1419 { "isfiles", 0, 0, 0, exp_isfiles },
1420 { "isfirst", 0, 0, 0, exp_isfirst },
1421 { "islast", 0, 0, 0, exp_islast },
1422 { "isnew", 0, 0, 0, exp_isnew },
1423 { "isplaying", 0, 0, 0, exp_isplaying },
1424 { "isqueue", 0, 0, 0, exp_isqueue },
1425 { "isrecent", 0, 0, 0, exp_isrecent },
1426 { "label", 1, 1, 0, exp_label },
1427 { "length", 0, 0, 0, exp_length },
1428 { "navigate", 2, 2, EXP_MAGIC, exp_navigate },
1429 { "ne", 2, 2, 0, exp_ne },
1430 { "new", 1, 1, EXP_MAGIC, exp_new },
1431 { "nfiles", 0, 0, 0, exp_nfiles },
1432 { "nonce", 0, 0, 0, exp_nonce },
1433 { "not", 1, 1, 0, exp_not },
1434 { "or", 0, INT_MAX, EXP_MAGIC, exp_or },
1435 { "parity", 0, 0, 0, exp_parity },
1436 { "part", 1, 3, 0, exp_part },
1437 { "paused", 0, 0, 0, exp_paused },
1438 { "playing", 1, 1, EXP_MAGIC, exp_playing },
1439 { "pref", 2, 2, 0, exp_pref },
1440 { "prefname", 0, 0, 0, exp_prefname },
1441 { "prefs", 2, 2, EXP_MAGIC, exp_prefs },
1442 { "prefvalue", 0, 0, 0, exp_prefvalue },
1443 { "queue", 1, 1, EXP_MAGIC, exp_queue },
1444 { "random-enabled", 0, 0, 0, exp_random_enabled },
1445 { "recent", 1, 1, EXP_MAGIC, exp_recent },
1446 { "removable", 0, 0, 0, exp_removable },
1447 { "resolve", 1, 1, 0, exp_resolve },
1448 { "scratchable", 0, 0, 0, exp_scratchable },
1449 { "search", 2, 3, EXP_MAGIC, exp_search },
1450 { "server-version", 0, 0, 0, exp_server_version },
1451 { "shell", 1, 1, 0, exp_shell },
1452 { "state", 0, 0, 0, exp_state },
1453 { "stats", 0, 0, 0, exp_stats },
1454 { "thisurl", 0, 0, 0, exp_thisurl },
1455 { "track", 0, 0, 0, exp_track },
1456 { "trackstate", 1, 1, 0, exp_trackstate },
1457 { "transform", 2, 3, 0, exp_transform },
1458 { "url", 0, 0, 0, exp_url },
1459 { "urlquote", 1, 1, 0, exp_urlquote },
1460 { "version", 0, 0, 0, exp_version },
1461 { "volume", 1, 1, 0, exp_volume },
1462 { "when", 0, 0, 0, exp_when },
1463 { "who", 0, 0, 0, exp_who }
1466 static void expand(cgi_sink *output,
1467 const char *template,
1469 cgi_expand(template,
1470 expansions, sizeof expansions / sizeof *expansions,
1475 static void expandstring(cgi_sink *output,
1478 cgi_expand_string("",
1480 expansions, sizeof expansions / sizeof *expansions,
1485 static void perform_action(cgi_sink *output, dcgi_state *ds,
1486 const char *action) {
1489 if((n = TABLE_FIND(actions, struct action, name, action)) >= 0)
1490 actions[n].handler(output, ds);
1492 cgi_header(output->sink, "Content-Type", "text/html");
1493 cgi_body(output->sink);
1494 expand(output, action, ds);
1498 void disorder_cgi(cgi_sink *output, dcgi_state *ds) {
1499 const char *action = cgi_get("action");
1501 if(!action) action = "playing";
1502 perform_action(output, ds, action);
1505 void disorder_cgi_error(cgi_sink *output, dcgi_state *ds,
1507 cgi_set_option("error", msg);
1508 perform_action(output, ds, "error");