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460b9539 | 1 | /* |
2 | * This file is part of DisOrder. | |
78efa64e | 3 | * Copyright (C) 2004, 2005, 2006, 2007 Richard Kettlewell |
460b9539 | 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, 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. | |
14 | * | |
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 | |
18 | * USA | |
19 | */ | |
20 | ||
21 | #include <config.h> | |
22 | #include "types.h" | |
23 | ||
24 | #include <stdio.h> | |
25 | #include <errno.h> | |
26 | #include <sys/types.h> | |
27 | #include <sys/socket.h> | |
28 | #include <stddef.h> | |
29 | #include <stdlib.h> | |
30 | #include <time.h> | |
31 | #include <unistd.h> | |
32 | #include <string.h> | |
33 | #include <sys/wait.h> | |
34 | #include <pcre.h> | |
35 | #include <assert.h> | |
36 | ||
37 | #include "client.h" | |
38 | #include "mem.h" | |
39 | #include "vector.h" | |
40 | #include "sink.h" | |
41 | #include "cgi.h" | |
42 | #include "dcgi.h" | |
43 | #include "log.h" | |
44 | #include "configuration.h" | |
45 | #include "table.h" | |
46 | #include "queue.h" | |
47 | #include "plugin.h" | |
48 | #include "split.h" | |
49 | #include "words.h" | |
50 | #include "wstat.h" | |
51 | #include "kvp.h" | |
52 | #include "syscalls.h" | |
53 | #include "printf.h" | |
54 | #include "regsub.h" | |
55 | #include "defs.h" | |
56 | #include "trackname.h" | |
61507e3c | 57 | #include "charset.h" |
460b9539 | 58 | |
59 | static void expand(cgi_sink *output, | |
60 | const char *template, | |
61 | dcgi_state *ds); | |
62 | static void expandstring(cgi_sink *output, | |
63 | const char *string, | |
64 | dcgi_state *ds); | |
65 | ||
66 | struct entry { | |
67 | const char *path; | |
68 | const char *sort; | |
69 | const char *display; | |
70 | }; | |
71 | ||
72 | static const char *nonce(void) { | |
73 | static unsigned long count; | |
74 | char *s; | |
75 | ||
76 | byte_xasprintf(&s, "%lx%lx%lx", | |
77 | (unsigned long)time(0), | |
78 | (unsigned long)getpid(), | |
79 | count++); | |
80 | return s; | |
81 | } | |
82 | ||
83 | static int compare_entry(const void *a, const void *b) { | |
84 | const struct entry *ea = a, *eb = b; | |
85 | ||
86 | return compare_tracks(ea->sort, eb->sort, | |
87 | ea->display, eb->display, | |
88 | ea->path, eb->path); | |
89 | } | |
90 | ||
91 | static const char *front_url(void) { | |
92 | char *url; | |
93 | const char *mgmt; | |
94 | ||
95 | /* preserve management interface visibility */ | |
96 | if((mgmt = cgi_get("mgmt")) && !strcmp(mgmt, "true")) { | |
97 | byte_xasprintf(&url, "%s?mgmt=true", config->url); | |
98 | return url; | |
99 | } | |
100 | return config->url; | |
101 | } | |
102 | ||
103 | static void redirect(struct sink *output) { | |
104 | const char *back; | |
105 | ||
106 | cgi_header(output, "Location", | |
107 | (back = cgi_get("back")) ? back : front_url()); | |
108 | cgi_body(output); | |
109 | } | |
110 | ||
111 | static void lookups(dcgi_state *ds, unsigned want) { | |
112 | unsigned need; | |
113 | struct queue_entry *r, *rnext; | |
114 | const char *dir, *re; | |
115 | ||
116 | if(ds->g->client && (need = want ^ (ds->g->flags & want)) != 0) { | |
117 | if(need & DC_QUEUE) | |
118 | disorder_queue(ds->g->client, &ds->g->queue); | |
119 | if(need & DC_PLAYING) | |
120 | disorder_playing(ds->g->client, &ds->g->playing); | |
78efa64e RK |
121 | if(need & DC_NEW) |
122 | disorder_new_tracks(ds->g->client, &ds->g->new, &ds->g->nnew, 0); | |
460b9539 | 123 | if(need & DC_RECENT) { |
124 | /* we need to reverse the order of the list */ | |
125 | disorder_recent(ds->g->client, &r); | |
126 | while(r) { | |
127 | rnext = r->next; | |
128 | r->next = ds->g->recent; | |
129 | ds->g->recent = r; | |
130 | r = rnext; | |
131 | } | |
132 | } | |
133 | if(need & DC_VOLUME) | |
134 | disorder_get_volume(ds->g->client, | |
135 | &ds->g->volume_left, &ds->g->volume_right); | |
136 | if(need & (DC_FILES|DC_DIRS)) { | |
137 | if(!(dir = cgi_get("directory"))) | |
138 | dir = ""; | |
139 | re = cgi_get("regexp"); | |
140 | if(need & DC_DIRS) | |
141 | if(disorder_directories(ds->g->client, dir, re, | |
142 | &ds->g->dirs, &ds->g->ndirs)) | |
143 | ds->g->ndirs = 0; | |
144 | if(need & DC_FILES) | |
145 | if(disorder_files(ds->g->client, dir, re, | |
146 | &ds->g->files, &ds->g->nfiles)) | |
147 | ds->g->nfiles = 0; | |
148 | } | |
149 | ds->g->flags |= need; | |
150 | } | |
151 | } | |
152 | ||
153 | /* actions ********************************************************************/ | |
154 | ||
155 | static void act_disable(cgi_sink *output, | |
156 | dcgi_state *ds) { | |
157 | if(ds->g->client) | |
158 | disorder_disable(ds->g->client); | |
159 | redirect(output->sink); | |
160 | } | |
161 | ||
162 | static void act_enable(cgi_sink *output, | |
163 | dcgi_state *ds) { | |
164 | if(ds->g->client) | |
165 | disorder_enable(ds->g->client); | |
166 | redirect(output->sink); | |
167 | } | |
168 | ||
169 | static void act_random_disable(cgi_sink *output, | |
170 | dcgi_state *ds) { | |
171 | if(ds->g->client) | |
172 | disorder_random_disable(ds->g->client); | |
173 | redirect(output->sink); | |
174 | } | |
175 | ||
176 | static void act_random_enable(cgi_sink *output, | |
177 | dcgi_state *ds) { | |
178 | if(ds->g->client) | |
179 | disorder_random_enable(ds->g->client); | |
180 | redirect(output->sink); | |
181 | } | |
182 | ||
183 | static void act_remove(cgi_sink *output, | |
184 | dcgi_state *ds) { | |
185 | const char *id; | |
186 | ||
187 | if(!(id = cgi_get("id"))) fatal(0, "missing id argument"); | |
188 | if(ds->g->client) | |
189 | disorder_remove(ds->g->client, id); | |
190 | redirect(output->sink); | |
191 | } | |
192 | ||
193 | static void act_move(cgi_sink *output, | |
194 | dcgi_state *ds) { | |
195 | const char *id, *delta; | |
196 | ||
197 | if(!(id = cgi_get("id"))) fatal(0, "missing id argument"); | |
198 | if(!(delta = cgi_get("delta"))) fatal(0, "missing delta argument"); | |
199 | if(ds->g->client) | |
200 | disorder_move(ds->g->client, id, atoi(delta)); | |
201 | redirect(output->sink); | |
202 | } | |
203 | ||
204 | static void act_scratch(cgi_sink *output, | |
205 | dcgi_state *ds) { | |
206 | if(ds->g->client) | |
207 | disorder_scratch(ds->g->client, cgi_get("id")); | |
208 | redirect(output->sink); | |
209 | } | |
210 | ||
211 | static void act_playing(cgi_sink *output, dcgi_state *ds) { | |
212 | char r[1024]; | |
213 | long refresh = config->refresh, length; | |
214 | time_t now, fin; | |
215 | int random_enabled = 0; | |
216 | int enabled = 0; | |
217 | ||
218 | lookups(ds, DC_PLAYING|DC_QUEUE); | |
219 | cgi_header(output->sink, "Content-Type", "text/html"); | |
220 | disorder_random_enabled(ds->g->client, &random_enabled); | |
221 | disorder_enabled(ds->g->client, &enabled); | |
222 | if(ds->g->playing | |
223 | && ds->g->playing->state == playing_started /* i.e. not paused */ | |
224 | && !disorder_length(ds->g->client, ds->g->playing->track, &length) | |
225 | && length | |
226 | && ds->g->playing->sofar >= 0) { | |
227 | /* Try to put the next refresh at the start of the next track. */ | |
228 | time(&now); | |
229 | fin = now + length - ds->g->playing->sofar + config->gap; | |
230 | if(now + refresh > fin) | |
231 | refresh = fin - now; | |
232 | } | |
233 | if(ds->g->queue && ds->g->queue->state == playing_isscratch) { | |
234 | /* next track is a scratch, don't leave more than the inter-track gap */ | |
235 | if(refresh > config->gap) | |
236 | refresh = config->gap; | |
237 | } | |
238 | if(!ds->g->playing && ((ds->g->queue | |
239 | && ds->g->queue->state != playing_random) | |
240 | || random_enabled) && enabled) { | |
241 | /* no track playing but playing is enabled and there is something coming | |
242 | * up, must be in a gap */ | |
243 | if(refresh > config->gap) | |
244 | refresh = config->gap; | |
245 | } | |
246 | byte_snprintf(r, sizeof r, "%ld;url=%s", refresh > 0 ? refresh : 1, | |
247 | front_url()); | |
248 | cgi_header(output->sink, "Refresh", r); | |
249 | cgi_body(output->sink); | |
250 | expand(output, "playing", ds); | |
251 | } | |
252 | ||
253 | static void act_play(cgi_sink *output, | |
254 | dcgi_state *ds) { | |
255 | const char *track, *dir; | |
256 | char **tracks; | |
257 | int ntracks, n; | |
258 | struct entry *e; | |
259 | ||
260 | if((track = cgi_get("file"))) { | |
261 | disorder_play(ds->g->client, track); | |
262 | } else if((dir = cgi_get("directory"))) { | |
263 | if(disorder_files(ds->g->client, dir, 0, &tracks, &ntracks)) ntracks = 0; | |
264 | if(ntracks) { | |
265 | e = xmalloc(ntracks * sizeof (struct entry)); | |
266 | for(n = 0; n < ntracks; ++n) { | |
267 | e[n].path = tracks[n]; | |
268 | e[n].sort = trackname_transform("track", tracks[n], "sort"); | |
269 | e[n].display = trackname_transform("track", tracks[n], "display"); | |
270 | } | |
271 | qsort(e, ntracks, sizeof (struct entry), compare_entry); | |
272 | for(n = 0; n < ntracks; ++n) | |
273 | disorder_play(ds->g->client, e[n].path); | |
274 | } | |
275 | } | |
276 | /* XXX error handling */ | |
277 | redirect(output->sink); | |
278 | } | |
279 | ||
280 | static int clamp(int n, int min, int max) { | |
281 | if(n < min) | |
282 | return min; | |
283 | if(n > max) | |
284 | return max; | |
285 | return n; | |
286 | } | |
287 | ||
288 | static const char *volume_url(void) { | |
289 | char *url; | |
290 | ||
291 | byte_xasprintf(&url, "%s?action=volume", config->url); | |
292 | return url; | |
293 | } | |
294 | ||
295 | static void act_volume(cgi_sink *output, dcgi_state *ds) { | |
296 | const char *l, *r, *d, *back; | |
297 | int nd, changed = 0;; | |
298 | ||
299 | if((d = cgi_get("delta"))) { | |
300 | lookups(ds, DC_VOLUME); | |
301 | nd = clamp(atoi(d), -255, 255); | |
302 | disorder_set_volume(ds->g->client, | |
303 | clamp(ds->g->volume_left + nd, 0, 255), | |
304 | clamp(ds->g->volume_right + nd, 0, 255)); | |
305 | changed = 1; | |
306 | } else if((l = cgi_get("left")) && (r = cgi_get("right"))) { | |
307 | disorder_set_volume(ds->g->client, atoi(l), atoi(r)); | |
308 | changed = 1; | |
309 | } | |
310 | if(changed) { | |
311 | /* redirect back to ourselves (but without the volume-changing bits in the | |
312 | * URL) */ | |
313 | cgi_header(output->sink, "Location", | |
314 | (back = cgi_get("back")) ? back : volume_url()); | |
315 | cgi_body(output->sink); | |
316 | } else { | |
317 | cgi_header(output->sink, "Content-Type", "text/html"); | |
318 | cgi_body(output->sink); | |
319 | expand(output, "volume", ds); | |
320 | } | |
321 | } | |
322 | ||
323 | static void act_prefs_errors(const char *msg, | |
324 | void attribute((unused)) *u) { | |
325 | fatal(0, "error splitting parts list: %s", msg); | |
326 | } | |
327 | ||
328 | static const char *numbered_arg(const char *argname, int numfile) { | |
329 | char *fullname; | |
330 | ||
331 | byte_xasprintf(&fullname, "%d_%s", numfile, argname); | |
332 | return cgi_get(fullname); | |
333 | } | |
334 | ||
335 | static void process_prefs(dcgi_state *ds, int numfile) { | |
336 | const char *file, *name, *value, *part, *parts, *current, *context; | |
337 | char **partslist; | |
338 | ||
339 | if(!(file = numbered_arg("file", numfile))) | |
340 | /* The first file doesn't need numbering. */ | |
341 | if(numfile > 0 || !(file = cgi_get("file"))) | |
342 | return; | |
343 | if((parts = numbered_arg("parts", numfile)) | |
344 | || (parts = cgi_get("parts"))) { | |
345 | /* Default context is display. Other contexts not actually tested. */ | |
346 | if(!(context = numbered_arg("context", numfile))) context = "display"; | |
347 | partslist = split(parts, 0, 0, act_prefs_errors, 0); | |
348 | while((part = *partslist++)) { | |
349 | if(!(value = numbered_arg(part, numfile))) | |
350 | continue; | |
351 | /* If it's already right (whether regexps or db) don't change anything, | |
352 | * so we don't fill the database up with rubbish. */ | |
353 | if(disorder_part(ds->g->client, (char **)¤t, | |
354 | file, context, part)) | |
355 | fatal(0, "disorder_part() failed"); | |
356 | if(!strcmp(current, value)) | |
357 | continue; | |
358 | byte_xasprintf((char **)&name, "trackname_%s_%s", context, part); | |
359 | disorder_set(ds->g->client, file, name, value); | |
360 | } | |
361 | if((value = numbered_arg("random", numfile))) | |
362 | disorder_unset(ds->g->client, file, "pick_at_random"); | |
363 | else | |
364 | disorder_set(ds->g->client, file, "pick_at_random", "0"); | |
365 | if((value = numbered_arg("tags", numfile))) | |
366 | disorder_set(ds->g->client, file, "tags", value); | |
367 | } else if((name = cgi_get("name"))) { | |
368 | /* Raw preferences. Not well supported in the templates at the moment. */ | |
369 | value = cgi_get("value"); | |
370 | if(value) | |
371 | disorder_set(ds->g->client, file, name, value); | |
372 | else | |
373 | disorder_unset(ds->g->client, file, name); | |
374 | } | |
375 | } | |
376 | ||
377 | static void act_prefs(cgi_sink *output, dcgi_state *ds) { | |
378 | const char *files; | |
379 | int nfiles, numfile; | |
380 | ||
381 | if((files = cgi_get("files"))) nfiles = atoi(files); | |
382 | else nfiles = 1; | |
383 | for(numfile = 0; numfile < nfiles; ++numfile) | |
384 | process_prefs(ds, numfile); | |
385 | cgi_header(output->sink, "Content-Type", "text/html"); | |
386 | cgi_body(output->sink); | |
387 | expand(output, "prefs", ds); | |
388 | } | |
389 | ||
390 | static void act_pause(cgi_sink *output, | |
391 | dcgi_state *ds) { | |
392 | if(ds->g->client) | |
393 | disorder_pause(ds->g->client); | |
394 | redirect(output->sink); | |
395 | } | |
396 | ||
397 | static void act_resume(cgi_sink *output, | |
398 | dcgi_state *ds) { | |
399 | if(ds->g->client) | |
400 | disorder_resume(ds->g->client); | |
401 | redirect(output->sink); | |
402 | } | |
403 | ||
404 | static const struct action { | |
405 | const char *name; | |
406 | void (*handler)(cgi_sink *output, dcgi_state *ds); | |
407 | } actions[] = { | |
408 | { "disable", act_disable }, | |
409 | { "enable", act_enable }, | |
410 | { "move", act_move }, | |
411 | { "pause", act_pause }, | |
412 | { "play", act_play }, | |
413 | { "playing", act_playing }, | |
414 | { "prefs", act_prefs }, | |
415 | { "random-disable", act_random_disable }, | |
416 | { "random-enable", act_random_enable }, | |
417 | { "remove", act_remove }, | |
418 | { "resume", act_resume }, | |
419 | { "scratch", act_scratch }, | |
420 | { "volume", act_volume }, | |
421 | }; | |
422 | ||
423 | /* expansions *****************************************************************/ | |
424 | ||
425 | static void exp_include(int attribute((unused)) nargs, | |
426 | char **args, | |
427 | cgi_sink *output, | |
428 | void *u) { | |
429 | expand(output, args[0], u); | |
430 | } | |
431 | ||
432 | static void exp_server_version(int attribute((unused)) nargs, | |
433 | char attribute((unused)) **args, | |
434 | cgi_sink *output, | |
435 | void *u) { | |
436 | dcgi_state *ds = u; | |
437 | const char *v; | |
438 | ||
439 | if(ds->g->client) { | |
440 | if(disorder_version(ds->g->client, (char **)&v)) v = "(cannot get version)"; | |
441 | } else | |
442 | v = "(server not running)"; | |
443 | cgi_output(output, "%s", v); | |
444 | } | |
445 | ||
446 | static void exp_version(int attribute((unused)) nargs, | |
447 | char attribute((unused)) **args, | |
448 | cgi_sink *output, | |
449 | void attribute((unused)) *u) { | |
450 | cgi_output(output, "%s", disorder_version_string); | |
451 | } | |
452 | ||
453 | static void exp_nonce(int attribute((unused)) nargs, | |
454 | char attribute((unused)) **args, | |
455 | cgi_sink *output, | |
456 | void attribute((unused)) *u) { | |
457 | cgi_output(output, "%s", nonce()); | |
458 | } | |
459 | ||
460 | static void exp_label(int attribute((unused)) nargs, | |
461 | char **args, | |
462 | cgi_sink *output, | |
463 | void attribute((unused)) *u) { | |
464 | cgi_output(output, "%s", cgi_label(args[0])); | |
465 | } | |
466 | ||
467 | struct trackinfo_state { | |
468 | dcgi_state *ds; | |
469 | const struct queue_entry *q; | |
470 | long length; | |
471 | time_t when; | |
472 | }; | |
473 | ||
474 | static void exp_who(int attribute((unused)) nargs, | |
475 | char attribute((unused)) **args, | |
476 | cgi_sink *output, | |
477 | void *u) { | |
478 | dcgi_state *ds = u; | |
479 | ||
480 | if(ds->track && ds->track->submitter) | |
481 | cgi_output(output, "%s", ds->track->submitter); | |
482 | } | |
483 | ||
484 | static void exp_length(int attribute((unused)) nargs, | |
485 | char attribute((unused)) **args, | |
486 | cgi_sink *output, | |
487 | void *u) { | |
488 | dcgi_state *ds = u; | |
78efa64e | 489 | long length = 0; |
460b9539 | 490 | |
491 | if(ds->track | |
492 | && (ds->track->state == playing_started | |
493 | || ds->track->state == playing_paused) | |
494 | && ds->track->sofar >= 0) | |
495 | cgi_output(output, "%ld:%02ld/", | |
496 | ds->track->sofar / 60, ds->track->sofar % 60); | |
78efa64e RK |
497 | length = 0; |
498 | if(ds->track) | |
499 | disorder_length(ds->g->client, ds->track->track, &length); | |
500 | else if(ds->tracks) | |
501 | disorder_length(ds->g->client, ds->tracks[0], &length); | |
460b9539 | 502 | if(length) |
503 | cgi_output(output, "%ld:%02ld", length / 60, length % 60); | |
504 | else | |
505 | sink_printf(output->sink, "%s", " "); | |
506 | } | |
507 | ||
508 | static void exp_when(int attribute((unused)) nargs, | |
509 | char attribute((unused)) **args, | |
510 | cgi_sink *output, | |
511 | void *u) { | |
512 | dcgi_state *ds = u; | |
513 | const struct tm *w = 0; | |
514 | ||
515 | if(ds->track) | |
516 | switch(ds->track->state) { | |
517 | case playing_isscratch: | |
518 | case playing_unplayed: | |
519 | case playing_random: | |
520 | if(ds->track->expected) | |
521 | w = localtime(&ds->track->expected); | |
522 | break; | |
523 | case playing_failed: | |
524 | case playing_no_player: | |
525 | case playing_ok: | |
526 | case playing_scratched: | |
527 | case playing_started: | |
528 | case playing_paused: | |
529 | case playing_quitting: | |
530 | if(ds->track->played) | |
531 | w = localtime(&ds->track->played); | |
532 | break; | |
533 | } | |
534 | if(w) | |
535 | cgi_output(output, "%d:%02d", w->tm_hour, w->tm_min); | |
536 | else | |
537 | sink_printf(output->sink, " "); | |
538 | } | |
539 | ||
540 | static void exp_part(int nargs, | |
541 | char **args, | |
542 | cgi_sink *output, | |
543 | void *u) { | |
544 | dcgi_state *ds = u; | |
545 | const char *s, *track, *part, *context; | |
546 | ||
547 | if(nargs == 3) | |
548 | track = args[2]; | |
549 | else { | |
550 | if(ds->track) | |
551 | track = ds->track->track; | |
552 | else if(ds->tracks) | |
553 | track = ds->tracks[0]; | |
554 | else | |
555 | track = 0; | |
556 | } | |
557 | if(track) { | |
558 | switch(nargs) { | |
559 | case 1: | |
560 | context = "display"; | |
561 | part = args[0]; | |
562 | break; | |
563 | case 2: | |
564 | case 3: | |
565 | context = args[0]; | |
566 | part = args[1]; | |
567 | break; | |
568 | default: | |
569 | abort(); | |
570 | } | |
61507e3c RK |
571 | if(disorder_part(ds->g->client, (char **)&s, track, |
572 | !strcmp(context, "short") ? "display" : context, part)) | |
460b9539 | 573 | fatal(0, "disorder_part() failed"); |
61507e3c RK |
574 | if(!strcmp(context, "short")) |
575 | s = truncate_for_display(s, config->short_display); | |
460b9539 | 576 | cgi_output(output, "%s", s); |
577 | } else | |
578 | sink_printf(output->sink, " "); | |
579 | } | |
580 | ||
581 | static void exp_playing(int attribute((unused)) nargs, | |
582 | char **args, | |
583 | cgi_sink *output, | |
584 | void *u) { | |
585 | dcgi_state *ds = u; | |
586 | dcgi_state s; | |
587 | ||
588 | lookups(ds, DC_PLAYING); | |
589 | memset(&s, 0, sizeof s); | |
590 | s.g = ds->g; | |
591 | if(ds->g->playing) { | |
592 | s.track = ds->g->playing; | |
593 | expandstring(output, args[0], &s); | |
594 | } | |
595 | } | |
596 | ||
597 | static void exp_queue(int attribute((unused)) nargs, | |
598 | char **args, | |
599 | cgi_sink *output, | |
600 | void *u) { | |
601 | dcgi_state *ds = u; | |
602 | dcgi_state s; | |
603 | struct queue_entry *q; | |
604 | ||
605 | lookups(ds, DC_QUEUE); | |
606 | memset(&s, 0, sizeof s); | |
607 | s.g = ds->g; | |
608 | s.first = 1; | |
609 | for(q = ds->g->queue; q; q = q->next) { | |
610 | s.last = !q->next; | |
611 | s.track = q; | |
612 | expandstring(output, args[0], &s); | |
613 | s.index++; | |
614 | s.first = 0; | |
615 | } | |
616 | } | |
617 | ||
618 | static void exp_recent(int attribute((unused)) nargs, | |
619 | char **args, | |
620 | cgi_sink *output, | |
621 | void *u) { | |
622 | dcgi_state *ds = u; | |
623 | dcgi_state s; | |
624 | struct queue_entry *q; | |
625 | ||
626 | lookups(ds, DC_RECENT); | |
627 | memset(&s, 0, sizeof s); | |
628 | s.g = ds->g; | |
629 | s.first = 1; | |
630 | for(q = ds->g->recent; q; q = q->next) { | |
631 | s.last = !q; | |
632 | s.track = q; | |
633 | expandstring(output, args[0], &s); | |
634 | s.index++; | |
635 | s.first = 0; | |
636 | } | |
637 | } | |
638 | ||
78efa64e RK |
639 | static void exp_new(int attribute((unused)) nargs, |
640 | char **args, | |
641 | cgi_sink *output, | |
642 | void *u) { | |
643 | dcgi_state *ds = u; | |
644 | dcgi_state s; | |
645 | ||
646 | lookups(ds, DC_NEW); | |
647 | memset(&s, 0, sizeof s); | |
648 | s.g = ds->g; | |
649 | s.first = 1; | |
650 | for(s.index = 0; s.index < ds->g->nnew; ++s.index) { | |
651 | s.last = s.index + 1 < ds->g->nnew; | |
652 | s.tracks = &ds->g->new[s.index]; | |
653 | expandstring(output, args[0], &s); | |
654 | s.first = 0; | |
655 | } | |
656 | } | |
657 | ||
460b9539 | 658 | static void exp_url(int attribute((unused)) nargs, |
659 | char attribute((unused)) **args, | |
660 | cgi_sink *output, | |
661 | void attribute((unused)) *u) { | |
662 | cgi_output(output, "%s", config->url); | |
663 | } | |
664 | ||
665 | struct result { | |
666 | char *track; | |
667 | const char *sort; | |
668 | }; | |
669 | ||
670 | static int compare_result(const void *a, const void *b) { | |
671 | const struct result *ra = a, *rb = b; | |
672 | int c; | |
673 | ||
674 | if(!(c = strcmp(ra->sort, rb->sort))) | |
675 | c = strcmp(ra->track, rb->track); | |
676 | return c; | |
677 | } | |
678 | ||
679 | static void exp_search(int nargs, | |
680 | char **args, | |
681 | cgi_sink *output, | |
682 | void *u) { | |
683 | dcgi_state *ds = u, substate; | |
684 | char **tracks; | |
685 | const char *q, *context, *part, *template; | |
686 | int ntracks, n, m; | |
687 | struct result *r; | |
688 | ||
689 | switch(nargs) { | |
690 | case 2: | |
691 | part = args[0]; | |
692 | context = "sort"; | |
693 | template = args[1]; | |
694 | break; | |
695 | case 3: | |
696 | part = args[0]; | |
697 | context = args[1]; | |
698 | template = args[2]; | |
699 | break; | |
700 | default: | |
701 | assert(!"should never happen"); | |
702 | part = context = template = 0; /* quieten compiler */ | |
703 | } | |
704 | if(ds->tracks == 0) { | |
705 | /* we are the top level, let's get some search results */ | |
706 | if(!(q = cgi_get("query"))) return; /* no results yet */ | |
707 | if(disorder_search(ds->g->client, q, &tracks, &ntracks)) return; | |
708 | if(!ntracks) return; | |
709 | } else { | |
710 | tracks = ds->tracks; | |
711 | ntracks = ds->ntracks; | |
712 | } | |
713 | assert(ntracks != 0); | |
714 | /* sort tracks by the appropriate part */ | |
715 | r = xmalloc(ntracks * sizeof *r); | |
716 | for(n = 0; n < ntracks; ++n) { | |
717 | r[n].track = tracks[n]; | |
718 | if(disorder_part(ds->g->client, (char **)&r[n].sort, | |
719 | tracks[n], context, part)) | |
720 | fatal(0, "disorder_part() failed"); | |
721 | } | |
722 | qsort(r, ntracks, sizeof (struct result), compare_result); | |
723 | /* expand the 2nd arg once for each group. We re-use the passed-in tracks | |
724 | * array as we know it's guaranteed to be big enough and isn't going to be | |
725 | * used for anything else any more. */ | |
726 | memset(&substate, 0, sizeof substate); | |
727 | substate.g = ds->g; | |
728 | substate.first = 1; | |
729 | n = 0; | |
730 | while(n < ntracks) { | |
731 | substate.tracks = tracks; | |
732 | substate.ntracks = 0; | |
733 | m = n; | |
734 | while(m < ntracks | |
735 | && !strcmp(r[m].sort, r[n].sort)) | |
736 | tracks[substate.ntracks++] = r[m++].track; | |
737 | substate.last = (m == ntracks); | |
738 | expandstring(output, template, &substate); | |
739 | substate.index++; | |
740 | substate.first = 0; | |
741 | n = m; | |
742 | } | |
743 | assert(substate.last != 0); | |
744 | } | |
745 | ||
746 | static void exp_arg(int attribute((unused)) nargs, | |
747 | char **args, | |
748 | cgi_sink *output, | |
749 | void attribute((unused)) *u) { | |
750 | const char *v; | |
751 | ||
752 | if((v = cgi_get(args[0]))) | |
753 | cgi_output(output, "%s", v); | |
754 | } | |
755 | ||
756 | static void exp_stats(int attribute((unused)) nargs, | |
757 | char attribute((unused)) **args, | |
758 | cgi_sink *output, | |
759 | void *u) { | |
760 | dcgi_state *ds = u; | |
761 | char **v; | |
762 | ||
763 | cgi_opentag(output->sink, "pre", "class", "stats", (char *)0); | |
764 | if(!disorder_stats(ds->g->client, &v, 0)) { | |
765 | while(*v) | |
766 | cgi_output(output, "%s\n", *v++); | |
767 | } | |
768 | cgi_closetag(output->sink, "pre"); | |
769 | } | |
770 | ||
771 | static void exp_volume(int attribute((unused)) nargs, | |
772 | char **args, | |
773 | cgi_sink *output, | |
774 | void *u) { | |
775 | dcgi_state *ds = u; | |
776 | ||
777 | lookups(ds, DC_VOLUME); | |
778 | if(!strcmp(args[0], "left")) | |
779 | cgi_output(output, "%d", ds->g->volume_left); | |
780 | else | |
781 | cgi_output(output, "%d", ds->g->volume_right); | |
782 | } | |
783 | ||
784 | static void exp_shell(int attribute((unused)) nargs, | |
785 | char **args, | |
786 | cgi_sink *output, | |
787 | void attribute((unused)) *u) { | |
788 | int w, p[2], n; | |
789 | char buffer[4096]; | |
790 | pid_t pid; | |
791 | ||
792 | xpipe(p); | |
793 | if(!(pid = xfork())) { | |
794 | exitfn = _exit; | |
795 | xclose(p[0]); | |
796 | xdup2(p[1], 1); | |
797 | xclose(p[1]); | |
798 | execlp("sh", "sh", "-c", args[0], (char *)0); | |
799 | fatal(errno, "error executing sh"); | |
800 | } | |
801 | xclose(p[1]); | |
802 | while((n = read(p[0], buffer, sizeof buffer))) { | |
803 | if(n < 0) { | |
804 | if(errno == EINTR) continue; | |
805 | else fatal(errno, "error reading from pipe"); | |
806 | } | |
807 | output->sink->write(output->sink, buffer, n); | |
808 | } | |
809 | xclose(p[0]); | |
810 | while((n = waitpid(pid, &w, 0)) < 0 && errno == EINTR) | |
811 | ; | |
812 | if(n < 0) fatal(errno, "error calling waitpid"); | |
813 | if(w) | |
814 | error(0, "shell command '%s' %s", args[0], wstat(w)); | |
815 | } | |
816 | ||
817 | static inline int str2bool(const char *s) { | |
818 | return !strcmp(s, "true"); | |
819 | } | |
820 | ||
821 | static inline const char *bool2str(int n) { | |
822 | return n ? "true" : "false"; | |
823 | } | |
824 | ||
825 | static char *expandarg(const char *arg, dcgi_state *ds) { | |
826 | struct dynstr d; | |
827 | cgi_sink output; | |
828 | ||
829 | dynstr_init(&d); | |
830 | output.quote = 0; | |
831 | output.sink = sink_dynstr(&d); | |
832 | expandstring(&output, arg, ds); | |
833 | dynstr_terminate(&d); | |
834 | return d.vec; | |
835 | } | |
836 | ||
837 | static void exp_prefs(int attribute((unused)) nargs, | |
838 | char **args, | |
839 | cgi_sink *output, | |
840 | void *u) { | |
841 | dcgi_state *ds = u; | |
842 | dcgi_state substate; | |
843 | struct kvp *k; | |
844 | const char *file = expandarg(args[0], ds); | |
845 | ||
846 | memset(&substate, 0, sizeof substate); | |
847 | substate.g = ds->g; | |
848 | substate.first = 1; | |
849 | if(disorder_prefs(ds->g->client, file, &k)) return; | |
850 | while(k) { | |
851 | substate.last = !k->next; | |
852 | substate.pref = k; | |
853 | expandstring(output, args[1], &substate); | |
854 | ++substate.index; | |
855 | k = k->next; | |
856 | substate.first = 0; | |
857 | } | |
858 | } | |
859 | ||
860 | static void exp_pref(int attribute((unused)) nargs, | |
861 | char **args, | |
862 | cgi_sink *output, | |
863 | void *u) { | |
864 | char *value; | |
865 | dcgi_state *ds = u; | |
866 | ||
867 | if(!disorder_get(ds->g->client, args[0], args[1], &value)) | |
868 | cgi_output(output, "%s", value); | |
869 | } | |
870 | ||
871 | static void exp_if(int nargs, | |
872 | char **args, | |
873 | cgi_sink *output, | |
874 | void *u) { | |
875 | dcgi_state *ds = u; | |
876 | int n = str2bool(expandarg(args[0], ds)) ? 1 : 2; | |
877 | ||
878 | if(n < nargs) | |
879 | expandstring(output, args[n], ds); | |
880 | } | |
881 | ||
882 | static void exp_and(int nargs, | |
883 | char **args, | |
884 | cgi_sink *output, | |
885 | void *u) { | |
886 | dcgi_state *ds = u; | |
887 | int n, result = 1; | |
888 | ||
889 | for(n = 0; n < nargs; ++n) | |
890 | if(!str2bool(expandarg(args[n], ds))) { | |
891 | result = 0; | |
892 | break; | |
893 | } | |
894 | sink_printf(output->sink, "%s", bool2str(result)); | |
895 | } | |
896 | ||
897 | static void exp_or(int nargs, | |
898 | char **args, | |
899 | cgi_sink *output, | |
900 | void *u) { | |
901 | dcgi_state *ds = u; | |
902 | int n, result = 0; | |
903 | ||
904 | for(n = 0; n < nargs; ++n) | |
905 | if(str2bool(expandarg(args[n], ds))) { | |
906 | result = 1; | |
907 | break; | |
908 | } | |
909 | sink_printf(output->sink, "%s", bool2str(result)); | |
910 | } | |
911 | ||
912 | static void exp_not(int attribute((unused)) nargs, | |
913 | char **args, | |
914 | cgi_sink *output, | |
915 | void attribute((unused)) *u) { | |
916 | sink_printf(output->sink, "%s", bool2str(!str2bool(args[0]))); | |
917 | } | |
918 | ||
919 | static void exp_isplaying(int attribute((unused)) nargs, | |
920 | char attribute((unused)) **args, | |
921 | cgi_sink *output, | |
922 | void *u) { | |
923 | dcgi_state *ds = u; | |
924 | ||
925 | lookups(ds, DC_PLAYING); | |
926 | sink_printf(output->sink, "%s", bool2str(!!ds->g->playing)); | |
927 | } | |
928 | ||
929 | static void exp_isqueue(int attribute((unused)) nargs, | |
930 | char attribute((unused)) **args, | |
931 | cgi_sink *output, | |
932 | void *u) { | |
933 | dcgi_state *ds = u; | |
934 | ||
935 | lookups(ds, DC_QUEUE); | |
936 | sink_printf(output->sink, "%s", bool2str(!!ds->g->queue)); | |
937 | } | |
938 | ||
939 | static void exp_isrecent(int attribute((unused)) nargs, | |
940 | char attribute((unused)) **args, | |
941 | cgi_sink *output, | |
942 | void *u) { | |
943 | dcgi_state *ds = u; | |
944 | ||
945 | lookups(ds, DC_RECENT); | |
946 | sink_printf(output->sink, "%s", bool2str(!!ds->g->recent)); | |
947 | } | |
948 | ||
78efa64e RK |
949 | static void exp_isnew(int attribute((unused)) nargs, |
950 | char attribute((unused)) **args, | |
951 | cgi_sink *output, | |
952 | void *u) { | |
953 | dcgi_state *ds = u; | |
954 | ||
955 | lookups(ds, DC_NEW); | |
956 | sink_printf(output->sink, "%s", bool2str(!!ds->g->nnew)); | |
957 | } | |
958 | ||
460b9539 | 959 | static void exp_id(int attribute((unused)) nargs, |
960 | char attribute((unused)) **args, | |
961 | cgi_sink *output, | |
962 | void *u) { | |
963 | dcgi_state *ds = u; | |
964 | ||
965 | if(ds->track) | |
966 | cgi_output(output, "%s", ds->track->id); | |
967 | } | |
968 | ||
969 | static void exp_track(int attribute((unused)) nargs, | |
970 | char attribute((unused)) **args, | |
971 | cgi_sink *output, | |
972 | void *u) { | |
973 | dcgi_state *ds = u; | |
974 | ||
975 | if(ds->track) | |
976 | cgi_output(output, "%s", ds->track->track); | |
977 | } | |
978 | ||
979 | static void exp_parity(int attribute((unused)) nargs, | |
980 | char attribute((unused)) **args, | |
981 | cgi_sink *output, | |
982 | void *u) { | |
983 | dcgi_state *ds = u; | |
984 | ||
985 | cgi_output(output, "%s", ds->index % 2 ? "odd" : "even"); | |
986 | } | |
987 | ||
988 | static void exp_comment(int attribute((unused)) nargs, | |
989 | char attribute((unused)) **args, | |
990 | cgi_sink attribute((unused)) *output, | |
991 | void attribute((unused)) *u) { | |
992 | /* do nothing */ | |
993 | } | |
994 | ||
995 | static void exp_prefname(int attribute((unused)) nargs, | |
996 | char attribute((unused)) **args, | |
997 | cgi_sink *output, | |
998 | void *u) { | |
999 | dcgi_state *ds = u; | |
1000 | ||
1001 | if(ds->pref && ds->pref->name) | |
1002 | cgi_output(output, "%s", ds->pref->name); | |
1003 | } | |
1004 | ||
1005 | static void exp_prefvalue(int attribute((unused)) nargs, | |
1006 | char attribute((unused)) **args, | |
1007 | cgi_sink *output, | |
1008 | void *u) { | |
1009 | dcgi_state *ds = u; | |
1010 | ||
1011 | if(ds->pref && ds->pref->value) | |
1012 | cgi_output(output, "%s", ds->pref->value); | |
1013 | } | |
1014 | ||
1015 | static void exp_isfiles(int attribute((unused)) nargs, | |
1016 | char attribute((unused)) **args, | |
1017 | cgi_sink *output, | |
1018 | void *u) { | |
1019 | dcgi_state *ds = u; | |
1020 | ||
1021 | lookups(ds, DC_FILES); | |
1022 | sink_printf(output->sink, "%s", bool2str(!!ds->g->nfiles)); | |
1023 | } | |
1024 | ||
1025 | static void exp_isdirectories(int attribute((unused)) nargs, | |
1026 | char attribute((unused)) **args, | |
1027 | cgi_sink *output, | |
1028 | void *u) { | |
1029 | dcgi_state *ds = u; | |
1030 | ||
1031 | lookups(ds, DC_DIRS); | |
1032 | sink_printf(output->sink, "%s", bool2str(!!ds->g->ndirs)); | |
1033 | } | |
1034 | ||
1035 | static void exp_choose(int attribute((unused)) nargs, | |
1036 | char **args, | |
1037 | cgi_sink *output, | |
1038 | void *u) { | |
1039 | dcgi_state *ds = u; | |
1040 | dcgi_state substate; | |
1041 | int nfiles, n; | |
1042 | char **files; | |
1043 | struct entry *e; | |
1044 | const char *type, *what = expandarg(args[0], ds); | |
1045 | ||
1046 | if(!strcmp(what, "files")) { | |
1047 | lookups(ds, DC_FILES); | |
1048 | files = ds->g->files; | |
1049 | nfiles = ds->g->nfiles; | |
1050 | type = "track"; | |
1051 | } else if(!strcmp(what, "directories")) { | |
1052 | lookups(ds, DC_DIRS); | |
1053 | files = ds->g->dirs; | |
1054 | nfiles = ds->g->ndirs; | |
1055 | type = "dir"; | |
1056 | } else { | |
1057 | error(0, "unknown @choose@ argument '%s'", what); | |
1058 | return; | |
1059 | } | |
1060 | e = xmalloc(nfiles * sizeof (struct entry)); | |
1061 | for(n = 0; n < nfiles; ++n) { | |
1062 | e[n].path = files[n]; | |
1063 | e[n].sort = trackname_transform(type, files[n], "sort"); | |
1064 | e[n].display = trackname_transform(type, files[n], "display"); | |
1065 | } | |
1066 | qsort(e, nfiles, sizeof (struct entry), compare_entry); | |
1067 | memset(&substate, 0, sizeof substate); | |
1068 | substate.g = ds->g; | |
1069 | substate.first = 1; | |
1070 | for(n = 0; n < nfiles; ++n) { | |
1071 | substate.last = (n == nfiles - 1); | |
1072 | substate.index = n; | |
1073 | substate.entry = &e[n]; | |
1074 | expandstring(output, args[1], &substate); | |
1075 | substate.first = 0; | |
1076 | } | |
1077 | } | |
1078 | ||
1079 | static void exp_file(int attribute((unused)) nargs, | |
1080 | char attribute((unused)) **args, | |
1081 | cgi_sink *output, | |
1082 | void *u) { | |
1083 | dcgi_state *ds = u; | |
1084 | ||
1085 | if(ds->entry) | |
1086 | cgi_output(output, "%s", ds->entry->path); | |
1087 | else if(ds->track) | |
1088 | cgi_output(output, "%s", ds->track->track); | |
1089 | else if(ds->tracks) | |
1090 | cgi_output(output, "%s", ds->tracks[0]); | |
1091 | } | |
1092 | ||
1093 | static void exp_transform(int nargs, | |
1094 | char **args, | |
1095 | cgi_sink *output, | |
1096 | void attribute((unused)) *u) { | |
1097 | const char *context = nargs > 2 ? args[2] : "display"; | |
1098 | ||
1099 | cgi_output(output, "%s", trackname_transform(args[1], args[0], context)); | |
1100 | } | |
1101 | ||
1102 | static void exp_urlquote(int attribute((unused)) nargs, | |
1103 | char **args, | |
1104 | cgi_sink *output, | |
1105 | void attribute((unused)) *u) { | |
1106 | cgi_output(output, "%s", urlencodestring(args[0])); | |
1107 | } | |
1108 | ||
1109 | static void exp_scratchable(int attribute((unused)) nargs, | |
1110 | char attribute((unused)) **args, | |
1111 | cgi_sink *output, | |
1112 | void attribute((unused)) *u) { | |
1113 | dcgi_state *ds = u; | |
1114 | int result; | |
1115 | ||
1116 | if(config->restrictions & RESTRICT_SCRATCH) { | |
1117 | lookups(ds, DC_PLAYING); | |
1118 | result = (ds->g->playing | |
1119 | && (!ds->g->playing->submitter | |
1120 | || !strcmp(ds->g->playing->submitter, | |
1121 | disorder_user(ds->g->client)))); | |
1122 | } else | |
1123 | result = 1; | |
1124 | sink_printf(output->sink, "%s", bool2str(result)); | |
1125 | } | |
1126 | ||
1127 | static void exp_removable(int attribute((unused)) nargs, | |
1128 | char attribute((unused)) **args, | |
1129 | cgi_sink *output, | |
1130 | void attribute((unused)) *u) { | |
1131 | dcgi_state *ds = u; | |
1132 | int result; | |
1133 | ||
1134 | if(config->restrictions & RESTRICT_REMOVE) | |
1135 | result = (ds->track | |
1136 | && ds->track->submitter | |
1137 | && !strcmp(ds->track->submitter, | |
1138 | disorder_user(ds->g->client))); | |
1139 | else | |
1140 | result = 1; | |
1141 | sink_printf(output->sink, "%s", bool2str(result)); | |
1142 | } | |
1143 | ||
1144 | static void exp_navigate(int attribute((unused)) nargs, | |
1145 | char **args, | |
1146 | cgi_sink *output, | |
1147 | void *u) { | |
1148 | dcgi_state *ds = u; | |
1149 | dcgi_state substate; | |
1150 | const char *path = expandarg(args[0], ds); | |
1151 | const char *ptr; | |
1152 | int dirlen; | |
1153 | ||
1154 | if(*path) { | |
1155 | memset(&substate, 0, sizeof substate); | |
1156 | substate.g = ds->g; | |
1157 | ptr = path + 1; /* skip root */ | |
1158 | dirlen = 0; | |
1159 | substate.nav_path = path; | |
1160 | substate.first = 1; | |
1161 | while(*ptr) { | |
1162 | while(*ptr && *ptr != '/') | |
1163 | ++ptr; | |
1164 | substate.last = !*ptr; | |
1165 | substate.nav_len = ptr - path; | |
1166 | substate.nav_dirlen = dirlen; | |
1167 | expandstring(output, args[1], &substate); | |
1168 | dirlen = substate.nav_len; | |
1169 | if(*ptr) ++ptr; | |
1170 | substate.first = 0; | |
1171 | } | |
1172 | } | |
1173 | } | |
1174 | ||
1175 | static void exp_fullname(int attribute((unused)) nargs, | |
1176 | char attribute((unused)) **args, | |
1177 | cgi_sink *output, | |
1178 | void *u) { | |
1179 | dcgi_state *ds = u; | |
1180 | cgi_output(output, "%.*s", ds->nav_len, ds->nav_path); | |
1181 | } | |
1182 | ||
1183 | static void exp_basename(int nargs, | |
1184 | char **args, | |
1185 | cgi_sink *output, | |
1186 | void *u) { | |
1187 | dcgi_state *ds = u; | |
1188 | const char *s; | |
1189 | ||
1190 | if(nargs) { | |
1191 | if((s = strrchr(args[0], '/'))) ++s; | |
1192 | else s = args[0]; | |
1193 | cgi_output(output, "%s", s); | |
1194 | } else | |
1195 | cgi_output(output, "%.*s", ds->nav_len - ds->nav_dirlen - 1, | |
1196 | ds->nav_path + ds->nav_dirlen + 1); | |
1197 | } | |
1198 | ||
1199 | static void exp_dirname(int nargs, | |
1200 | char **args, | |
1201 | cgi_sink *output, | |
1202 | void *u) { | |
1203 | dcgi_state *ds = u; | |
1204 | const char *s; | |
1205 | ||
1206 | if(nargs) { | |
1207 | if((s = strrchr(args[0], '/'))) | |
1208 | cgi_output(output, "%.*s", (int)(s - args[0]), args[0]); | |
1209 | } else | |
1210 | cgi_output(output, "%.*s", ds->nav_dirlen, ds->nav_path); | |
1211 | } | |
1212 | ||
1213 | static void exp_eq(int attribute((unused)) nargs, | |
1214 | char **args, | |
1215 | cgi_sink *output, | |
1216 | void attribute((unused)) *u) { | |
1217 | cgi_output(output, "%s", bool2str(!strcmp(args[0], args[1]))); | |
1218 | } | |
1219 | ||
1220 | static void exp_ne(int attribute((unused)) nargs, | |
1221 | char **args, | |
1222 | cgi_sink *output, | |
1223 | void attribute((unused)) *u) { | |
1224 | cgi_output(output, "%s", bool2str(strcmp(args[0], args[1]))); | |
1225 | } | |
1226 | ||
1227 | static void exp_enabled(int attribute((unused)) nargs, | |
1228 | char attribute((unused)) **args, | |
1229 | cgi_sink *output, | |
1230 | void *u) { | |
1231 | dcgi_state *ds = u; | |
1232 | int enabled = 0; | |
1233 | ||
1234 | if(ds->g->client) | |
1235 | disorder_enabled(ds->g->client, &enabled); | |
1236 | cgi_output(output, "%s", bool2str(enabled)); | |
1237 | } | |
1238 | ||
1239 | static void exp_random_enabled(int attribute((unused)) nargs, | |
1240 | char attribute((unused)) **args, | |
1241 | cgi_sink *output, | |
1242 | void *u) { | |
1243 | dcgi_state *ds = u; | |
1244 | int enabled = 0; | |
1245 | ||
1246 | if(ds->g->client) | |
1247 | disorder_random_enabled(ds->g->client, &enabled); | |
1248 | cgi_output(output, "%s", bool2str(enabled)); | |
1249 | } | |
1250 | ||
1251 | static void exp_trackstate(int attribute((unused)) nargs, | |
1252 | char **args, | |
1253 | cgi_sink *output, | |
1254 | void *u) { | |
1255 | dcgi_state *ds = u; | |
1256 | struct queue_entry *q; | |
1257 | char *track; | |
1258 | ||
1259 | if(disorder_resolve(ds->g->client, &track, args[0])) return; | |
1260 | lookups(ds, DC_QUEUE|DC_PLAYING); | |
1261 | if(ds->g->playing && !strcmp(ds->g->playing->track, track)) | |
1262 | cgi_output(output, "playing"); | |
1263 | else { | |
1264 | for(q = ds->g->queue; q && strcmp(q->track, track); q = q->next) | |
1265 | ; | |
1266 | if(q) | |
1267 | cgi_output(output, "queued"); | |
1268 | } | |
1269 | } | |
1270 | ||
1271 | static void exp_thisurl(int attribute((unused)) nargs, | |
1272 | char attribute((unused)) **args, | |
1273 | cgi_sink *output, | |
1274 | void attribute((unused)) *u) { | |
1275 | kvp_set(&cgi_args, "nonce", nonce()); /* nonces had better differ! */ | |
1276 | cgi_output(output, "%s?%s", config->url, kvp_urlencode(cgi_args, 0)); | |
1277 | } | |
1278 | ||
1279 | static void exp_isfirst(int attribute((unused)) nargs, | |
1280 | char attribute((unused)) **args, | |
1281 | cgi_sink *output, | |
1282 | void *u) { | |
1283 | dcgi_state *ds = u; | |
1284 | ||
1285 | sink_printf(output->sink, "%s", bool2str(!!ds->first)); | |
1286 | } | |
1287 | ||
1288 | static void exp_islast(int attribute((unused)) nargs, | |
1289 | char attribute((unused)) **args, | |
1290 | cgi_sink *output, | |
1291 | void *u) { | |
1292 | dcgi_state *ds = u; | |
1293 | ||
1294 | sink_printf(output->sink, "%s", bool2str(!!ds->last)); | |
1295 | } | |
1296 | ||
1297 | static void exp_action(int attribute((unused)) nargs, | |
1298 | char attribute((unused)) **args, | |
1299 | cgi_sink *output, | |
1300 | void attribute((unused)) *u) { | |
1301 | const char *action = cgi_get("action"), *mgmt; | |
1302 | ||
1303 | if(!action) action = "playing"; | |
1304 | if(!strcmp(action, "playing") | |
1305 | && (mgmt = cgi_get("mgmt")) | |
1306 | && !strcmp(mgmt, "true")) | |
1307 | action = "manage"; | |
1308 | sink_printf(output->sink, "%s", action); | |
1309 | } | |
1310 | ||
1311 | static void exp_resolve(int attribute((unused)) nargs, | |
1312 | char **args, | |
1313 | cgi_sink *output, | |
1314 | void attribute((unused)) *u) { | |
1315 | dcgi_state *ds = u; | |
1316 | char *track; | |
1317 | ||
1318 | if(!disorder_resolve(ds->g->client, &track, args[0])) | |
1319 | sink_printf(output->sink, "%s", track); | |
1320 | } | |
1321 | ||
1322 | static void exp_paused(int attribute((unused)) nargs, | |
1323 | char attribute((unused)) **args, | |
1324 | cgi_sink *output, | |
1325 | void *u) { | |
1326 | dcgi_state *ds = u; | |
1327 | int paused = 0; | |
1328 | ||
1329 | lookups(ds, DC_PLAYING); | |
1330 | if(ds->g->playing && ds->g->playing->state == playing_paused) | |
1331 | paused = 1; | |
1332 | cgi_output(output, "%s", bool2str(paused)); | |
1333 | } | |
1334 | ||
1335 | static void exp_state(int attribute((unused)) nargs, | |
1336 | char attribute((unused)) **args, | |
1337 | cgi_sink *output, | |
1338 | void *u) { | |
1339 | dcgi_state *ds = u; | |
1340 | ||
1341 | if(ds->track) | |
1342 | cgi_output(output, "%s", playing_states[ds->track->state]); | |
1343 | } | |
1344 | ||
1345 | static void exp_files(int attribute((unused)) nargs, | |
1346 | char **args, | |
1347 | cgi_sink *output, | |
1348 | void *u) { | |
1349 | dcgi_state *ds = u; | |
1350 | dcgi_state substate; | |
1351 | const char *nfiles_arg, *directory; | |
1352 | int nfiles, numfile; | |
1353 | struct kvp *k; | |
1354 | ||
1355 | memset(&substate, 0, sizeof substate); | |
1356 | substate.g = ds->g; | |
1357 | if((directory = cgi_get("directory"))) { | |
1358 | /* Prefs for whole directory. */ | |
1359 | lookups(ds, DC_FILES); | |
1360 | /* Synthesize args for the file list. */ | |
1361 | nfiles = ds->g->nfiles; | |
1362 | for(numfile = 0; numfile < nfiles; ++numfile) { | |
1363 | k = xmalloc(sizeof *k); | |
1364 | byte_xasprintf((char **)&k->name, "%d_file", numfile); | |
1365 | k->value = ds->g->files[numfile]; | |
1366 | k->next = cgi_args; | |
1367 | cgi_args = k; | |
1368 | } | |
1369 | } else { | |
1370 | /* Args already present. */ | |
1371 | if((nfiles_arg = cgi_get("files"))) nfiles = atoi(nfiles_arg); | |
1372 | else nfiles = 1; | |
1373 | } | |
1374 | for(numfile = 0; numfile < nfiles; ++numfile) { | |
1375 | substate.index = numfile; | |
1376 | expandstring(output, args[0], &substate); | |
1377 | } | |
1378 | } | |
1379 | ||
1380 | static void exp_index(int attribute((unused)) nargs, | |
1381 | char attribute((unused)) **args, | |
1382 | cgi_sink *output, | |
1383 | void *u) { | |
1384 | dcgi_state *ds = u; | |
1385 | ||
1386 | cgi_output(output, "%d", ds->index); | |
1387 | } | |
1388 | ||
1389 | static void exp_nfiles(int attribute((unused)) nargs, | |
1390 | char attribute((unused)) **args, | |
1391 | cgi_sink *output, | |
1392 | void *u) { | |
1393 | dcgi_state *ds = u; | |
1394 | const char *files_arg; | |
1395 | ||
1396 | if(cgi_get("directory")) { | |
1397 | lookups(ds, DC_FILES); | |
1398 | cgi_output(output, "%d", ds->g->nfiles); | |
1399 | } else if((files_arg = cgi_get("files"))) | |
1400 | cgi_output(output, "%s", files_arg); | |
1401 | else | |
1402 | cgi_output(output, "1"); | |
1403 | } | |
1404 | ||
1405 | static const struct cgi_expansion expansions[] = { | |
1406 | { "#", 0, INT_MAX, EXP_MAGIC, exp_comment }, | |
1407 | { "action", 0, 0, 0, exp_action }, | |
1408 | { "and", 0, INT_MAX, EXP_MAGIC, exp_and }, | |
1409 | { "arg", 1, 1, 0, exp_arg }, | |
1410 | { "basename", 0, 1, 0, exp_basename }, | |
1411 | { "choose", 2, 2, EXP_MAGIC, exp_choose }, | |
1412 | { "dirname", 0, 1, 0, exp_dirname }, | |
1413 | { "enabled", 0, 0, 0, exp_enabled }, | |
1414 | { "eq", 2, 2, 0, exp_eq }, | |
1415 | { "file", 0, 0, 0, exp_file }, | |
1416 | { "files", 1, 1, EXP_MAGIC, exp_files }, | |
1417 | { "fullname", 0, 0, 0, exp_fullname }, | |
1418 | { "id", 0, 0, 0, exp_id }, | |
1419 | { "if", 2, 3, EXP_MAGIC, exp_if }, | |
1420 | { "include", 1, 1, 0, exp_include }, | |
1421 | { "index", 0, 0, 0, exp_index }, | |
1422 | { "isdirectories", 0, 0, 0, exp_isdirectories }, | |
1423 | { "isfiles", 0, 0, 0, exp_isfiles }, | |
1424 | { "isfirst", 0, 0, 0, exp_isfirst }, | |
1425 | { "islast", 0, 0, 0, exp_islast }, | |
78efa64e | 1426 | { "isnew", 0, 0, 0, exp_isnew }, |
460b9539 | 1427 | { "isplaying", 0, 0, 0, exp_isplaying }, |
1428 | { "isqueue", 0, 0, 0, exp_isqueue }, | |
1429 | { "isrecent", 0, 0, 0, exp_isrecent }, | |
1430 | { "label", 1, 1, 0, exp_label }, | |
1431 | { "length", 0, 0, 0, exp_length }, | |
1432 | { "navigate", 2, 2, EXP_MAGIC, exp_navigate }, | |
1433 | { "ne", 2, 2, 0, exp_ne }, | |
78efa64e | 1434 | { "new", 1, 1, EXP_MAGIC, exp_new }, |
460b9539 | 1435 | { "nfiles", 0, 0, 0, exp_nfiles }, |
1436 | { "nonce", 0, 0, 0, exp_nonce }, | |
1437 | { "not", 1, 1, 0, exp_not }, | |
1438 | { "or", 0, INT_MAX, EXP_MAGIC, exp_or }, | |
1439 | { "parity", 0, 0, 0, exp_parity }, | |
1440 | { "part", 1, 3, 0, exp_part }, | |
1441 | { "paused", 0, 0, 0, exp_paused }, | |
1442 | { "playing", 1, 1, EXP_MAGIC, exp_playing }, | |
1443 | { "pref", 2, 2, 0, exp_pref }, | |
1444 | { "prefname", 0, 0, 0, exp_prefname }, | |
1445 | { "prefs", 2, 2, EXP_MAGIC, exp_prefs }, | |
1446 | { "prefvalue", 0, 0, 0, exp_prefvalue }, | |
1447 | { "queue", 1, 1, EXP_MAGIC, exp_queue }, | |
1448 | { "random-enabled", 0, 0, 0, exp_random_enabled }, | |
1449 | { "recent", 1, 1, EXP_MAGIC, exp_recent }, | |
1450 | { "removable", 0, 0, 0, exp_removable }, | |
1451 | { "resolve", 1, 1, 0, exp_resolve }, | |
1452 | { "scratchable", 0, 0, 0, exp_scratchable }, | |
1453 | { "search", 2, 3, EXP_MAGIC, exp_search }, | |
1454 | { "server-version", 0, 0, 0, exp_server_version }, | |
1455 | { "shell", 1, 1, 0, exp_shell }, | |
1456 | { "state", 0, 0, 0, exp_state }, | |
1457 | { "stats", 0, 0, 0, exp_stats }, | |
1458 | { "thisurl", 0, 0, 0, exp_thisurl }, | |
1459 | { "track", 0, 0, 0, exp_track }, | |
1460 | { "trackstate", 1, 1, 0, exp_trackstate }, | |
1461 | { "transform", 2, 3, 0, exp_transform }, | |
1462 | { "url", 0, 0, 0, exp_url }, | |
1463 | { "urlquote", 1, 1, 0, exp_urlquote }, | |
1464 | { "version", 0, 0, 0, exp_version }, | |
1465 | { "volume", 1, 1, 0, exp_volume }, | |
1466 | { "when", 0, 0, 0, exp_when }, | |
1467 | { "who", 0, 0, 0, exp_who } | |
1468 | }; | |
1469 | ||
1470 | static void expand(cgi_sink *output, | |
1471 | const char *template, | |
1472 | dcgi_state *ds) { | |
1473 | cgi_expand(template, | |
1474 | expansions, sizeof expansions / sizeof *expansions, | |
1475 | output, | |
1476 | ds); | |
1477 | } | |
1478 | ||
1479 | static void expandstring(cgi_sink *output, | |
1480 | const char *string, | |
1481 | dcgi_state *ds) { | |
1482 | cgi_expand_string("", | |
1483 | string, | |
1484 | expansions, sizeof expansions / sizeof *expansions, | |
1485 | output, | |
1486 | ds); | |
1487 | } | |
1488 | ||
1489 | static void perform_action(cgi_sink *output, dcgi_state *ds, | |
1490 | const char *action) { | |
1491 | int n; | |
1492 | ||
1493 | if((n = TABLE_FIND(actions, struct action, name, action)) >= 0) | |
1494 | actions[n].handler(output, ds); | |
1495 | else { | |
1496 | cgi_header(output->sink, "Content-Type", "text/html"); | |
1497 | cgi_body(output->sink); | |
1498 | expand(output, action, ds); | |
1499 | } | |
1500 | } | |
1501 | ||
1502 | void disorder_cgi(cgi_sink *output, dcgi_state *ds) { | |
1503 | const char *action = cgi_get("action"); | |
1504 | ||
1505 | if(!action) action = "playing"; | |
1506 | perform_action(output, ds, action); | |
1507 | } | |
1508 | ||
1509 | void disorder_cgi_error(cgi_sink *output, dcgi_state *ds, | |
1510 | const char *msg) { | |
1511 | cgi_set_option("error", msg); | |
1512 | perform_action(output, ds, "error"); | |
1513 | } | |
1514 | ||
1515 | /* | |
1516 | Local Variables: | |
1517 | c-basic-offset:2 | |
1518 | comment-column:40 | |
1519 | fill-column:79 | |
1520 | End: | |
1521 | */ |