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