5 #include <sys/socket.h>
19 #include "server-cgi.h"
21 #include "configuration.h"
32 #include "trackname.h"
46 static int compare_entry(const void *a, const void *b) {
47 const struct entry *ea = a, *eb = b;
49 return compare_tracks(ea->sort, eb->sort,
50 ea->display, eb->display,
54 static const char *front_url(void) {
58 /* preserve management interface visibility */
59 if((mgmt = cgi_get("mgmt")) && !strcmp(mgmt, "true")) {
60 byte_xasprintf(&url, "%s?mgmt=true", config->url);
66 static void redirect(struct sink *output) {
69 back = cgi_get("back");
70 cgi_header(output, "Location", back && *back ? back : front_url());
71 header_cookie(output);
75 static void expand_template(dcgi_state *ds, cgi_sink *output,
77 cgi_header(output->sink, "Content-Type", "text/html");
78 header_cookie(output->sink);
79 cgi_body(output->sink);
80 expand(output, action, ds);
83 /* actions ********************************************************************/
85 static void act_disable(cgi_sink *output,
88 disorder_disable(ds->g->client);
89 redirect(output->sink);
92 static void act_enable(cgi_sink *output,
95 disorder_enable(ds->g->client);
96 redirect(output->sink);
99 static void act_random_disable(cgi_sink *output,
102 disorder_random_disable(ds->g->client);
103 redirect(output->sink);
106 static void act_random_enable(cgi_sink *output,
109 disorder_random_enable(ds->g->client);
110 redirect(output->sink);
113 static void act_remove(cgi_sink *output,
117 if(!(id = cgi_get("id"))) fatal(0, "missing id argument");
119 disorder_remove(ds->g->client, id);
120 redirect(output->sink);
123 static void act_move(cgi_sink *output,
125 const char *id, *delta;
127 if(!(id = cgi_get("id"))) fatal(0, "missing id argument");
128 if(!(delta = cgi_get("delta"))) fatal(0, "missing delta argument");
130 disorder_move(ds->g->client, id, atoi(delta));
131 redirect(output->sink);
134 static void act_scratch(cgi_sink *output,
137 disorder_scratch(ds->g->client, cgi_get("id"));
138 redirect(output->sink);
141 static void act_play(cgi_sink *output,
143 const char *track, *dir;
148 if((track = cgi_get("file"))) {
149 disorder_play(ds->g->client, track);
150 } else if((dir = cgi_get("directory"))) {
151 if(disorder_files(ds->g->client, dir, 0, &tracks, &ntracks)) ntracks = 0;
153 e = xmalloc(ntracks * sizeof (struct entry));
154 for(n = 0; n < ntracks; ++n) {
155 e[n].path = tracks[n];
156 e[n].sort = trackname_transform("track", tracks[n], "sort");
157 e[n].display = trackname_transform("track", tracks[n], "display");
159 qsort(e, ntracks, sizeof (struct entry), compare_entry);
160 for(n = 0; n < ntracks; ++n)
161 disorder_play(ds->g->client, e[n].path);
164 /* XXX error handling */
165 redirect(output->sink);
168 static int clamp(int n, int min, int max) {
176 static const char *volume_url(void) {
179 byte_xasprintf(&url, "%s?action=volume", config->url);
183 static void act_volume(cgi_sink *output, dcgi_state *ds) {
184 const char *l, *r, *d, *back;
185 int nd, changed = 0;;
187 if((d = cgi_get("delta"))) {
188 lookups(ds, DC_VOLUME);
189 nd = clamp(atoi(d), -255, 255);
190 disorder_set_volume(ds->g->client,
191 clamp(ds->g->volume_left + nd, 0, 255),
192 clamp(ds->g->volume_right + nd, 0, 255));
194 } else if((l = cgi_get("left")) && (r = cgi_get("right"))) {
195 disorder_set_volume(ds->g->client, atoi(l), atoi(r));
199 /* redirect back to ourselves (but without the volume-changing bits in the
201 cgi_header(output->sink, "Location",
202 (back = cgi_get("back")) ? back : volume_url());
203 header_cookie(output->sink);
204 cgi_body(output->sink);
206 cgi_header(output->sink, "Content-Type", "text/html");
207 header_cookie(output->sink);
208 cgi_body(output->sink);
209 expand(output, "volume", ds);
213 static void act_prefs_errors(const char *msg,
214 void attribute((unused)) *u) {
215 fatal(0, "error splitting parts list: %s", msg);
218 static const char *numbered_arg(const char *argname, int numfile) {
221 byte_xasprintf(&fullname, "%d_%s", numfile, argname);
222 return cgi_get(fullname);
225 static void process_prefs(dcgi_state *ds, int numfile) {
226 const char *file, *name, *value, *part, *parts, *current, *context;
229 if(!(file = numbered_arg("file", numfile)))
230 /* The first file doesn't need numbering. */
231 if(numfile > 0 || !(file = cgi_get("file")))
233 if((parts = numbered_arg("parts", numfile))
234 || (parts = cgi_get("parts"))) {
235 /* Default context is display. Other contexts not actually tested. */
236 if(!(context = numbered_arg("context", numfile))) context = "display";
237 partslist = split(parts, 0, 0, act_prefs_errors, 0);
238 while((part = *partslist++)) {
239 if(!(value = numbered_arg(part, numfile)))
241 /* If it's already right (whether regexps or db) don't change anything,
242 * so we don't fill the database up with rubbish. */
243 if(disorder_part(ds->g->client, (char **)¤t,
244 file, context, part))
245 fatal(0, "disorder_part() failed");
246 if(!strcmp(current, value))
248 byte_xasprintf((char **)&name, "trackname_%s_%s", context, part);
249 disorder_set(ds->g->client, file, name, value);
251 if((value = numbered_arg("random", numfile)))
252 disorder_unset(ds->g->client, file, "pick_at_random");
254 disorder_set(ds->g->client, file, "pick_at_random", "0");
255 if((value = numbered_arg("tags", numfile))) {
257 disorder_unset(ds->g->client, file, "tags");
259 disorder_set(ds->g->client, file, "tags", value);
261 if((value = numbered_arg("weight", numfile))) {
262 if(!*value || !strcmp(value, "90000"))
263 disorder_unset(ds->g->client, file, "weight");
265 disorder_set(ds->g->client, file, "weight", value);
267 } else if((name = cgi_get("name"))) {
268 /* Raw preferences. Not well supported in the templates at the moment. */
269 value = cgi_get("value");
271 disorder_set(ds->g->client, file, name, value);
273 disorder_unset(ds->g->client, file, name);
277 static void act_prefs(cgi_sink *output, dcgi_state *ds) {
281 if((files = cgi_get("files"))) nfiles = atoi(files);
283 for(numfile = 0; numfile < nfiles; ++numfile)
284 process_prefs(ds, numfile);
285 cgi_header(output->sink, "Content-Type", "text/html");
286 header_cookie(output->sink);
287 cgi_body(output->sink);
288 expand(output, "prefs", ds);
291 static void act_pause(cgi_sink *output,
294 disorder_pause(ds->g->client);
295 redirect(output->sink);
298 static void act_resume(cgi_sink *output,
301 disorder_resume(ds->g->client);
302 redirect(output->sink);
305 static void act_login(cgi_sink *output,
307 const char *username, *password, *back;
310 username = cgi_get("username");
311 password = cgi_get("password");
312 if(!username || !password
313 || !strcmp(username, "guest")/*bodge to avoid guest cookies*/) {
314 /* We're just visiting the login page */
315 expand_template(ds, output, "login");
318 /* We'll need a new connection as we are going to stop being guest */
320 if(disorder_connect_user(c, username, password)) {
321 cgi_set_option("error", "loginfailed");
322 expand_template(ds, output, "login");
325 if(disorder_make_cookie(c, &login_cookie)) {
326 cgi_set_option("error", "cookiefailed");
327 expand_template(ds, output, "login");
330 /* Use the new connection henceforth */
333 /* We have a new cookie */
334 header_cookie(output->sink);
335 cgi_set_option("status", "loginok");
336 if((back = cgi_get("back")) && *back)
337 /* Redirect back to somewhere or other */
338 redirect(output->sink);
340 /* Stick to the login page */
341 expand_template(ds, output, "login");
344 static void act_logout(cgi_sink *output,
346 disorder_revoke(ds->g->client);
348 /* Reconnect as guest */
349 disorder_cgi_login(ds, output);
350 /* Back to the login page */
351 cgi_set_option("status", "logoutok");
352 expand_template(ds, output, "login");
355 static void act_register(cgi_sink *output,
357 const char *username, *password, *password2, *email;
358 char *confirm, *content_type;
359 const char *text, *encoding, *charset;
361 username = cgi_get("username");
362 password = cgi_get("password1");
363 password2 = cgi_get("password2");
364 email = cgi_get("email");
366 if(!username || !*username) {
367 cgi_set_option("error", "nousername");
368 expand_template(ds, output, "login");
371 if(!password || !*password) {
372 cgi_set_option("error", "nopassword");
373 expand_template(ds, output, "login");
376 if(!password2 || !*password2 || strcmp(password, password2)) {
377 cgi_set_option("error", "passwordmismatch");
378 expand_template(ds, output, "login");
381 if(!email || !*email) {
382 cgi_set_option("error", "noemail");
383 expand_template(ds, output, "login");
386 /* We could well do better address validation but for now we'll just do the
388 if(!strchr(email, '@')) {
389 cgi_set_option("error", "bademail");
390 expand_template(ds, output, "login");
393 if(disorder_register(ds->g->client, username, password, email, &confirm)) {
394 cgi_set_option("error", "cannotregister");
395 expand_template(ds, output, "login");
398 /* Send the user a mail */
399 /* TODO templatize this */
400 byte_xasprintf((char **)&text,
401 "Welcome to DisOrder. To active your login, please visit this URL:\n"
403 "%s?c=%s\n", config->url, urlencodestring(confirm));
404 if(!(text = mime_encode_text(text, &charset, &encoding)))
405 fatal(0, "cannot encode email");
406 byte_xasprintf(&content_type, "text/plain;charset=%s",
407 quote822(charset, 0));
408 sendmail("", config->mail_sender, email, "Welcome to DisOrder",
409 encoding, content_type, text); /* TODO error checking */
410 /* We'll go back to the login page with a suitable message */
411 cgi_set_option("status", "registered");
412 expand_template(ds, output, "login");
415 static void act_confirm(cgi_sink *output,
417 const char *confirmation;
419 if(!(confirmation = cgi_get("c"))) {
420 cgi_set_option("error", "noconfirm");
421 expand_template(ds, output, "login");
423 /* Confirm our registration */
424 if(disorder_confirm(ds->g->client, confirmation)) {
425 cgi_set_option("error", "badconfirm");
426 expand_template(ds, output, "login");
429 if(disorder_make_cookie(ds->g->client, &login_cookie)) {
430 cgi_set_option("error", "cookiefailed");
431 expand_template(ds, output, "login");
434 /* Discard any cached data JIC */
436 /* We have a new cookie */
437 header_cookie(output->sink);
438 cgi_set_option("status", "confirmed");
439 expand_template(ds, output, "login");
442 static void act_edituser(cgi_sink *output,
444 const char *email = cgi_get("email"), *password = cgi_get("changepassword1");
445 const char *password2 = cgi_get("changepassword2");
449 if((password && *password) || (password && *password2)) {
450 if(!password || !password2 || strcmp(password, password2)) {
451 cgi_set_option("error", "passwordmismatch");
452 expand_template(ds, output, "login");
456 password = password2 = 0;
459 if(disorder_edituser(ds->g->client, disorder_user(ds->g->client),
461 cgi_set_option("error", "badedit");
462 expand_template(ds, output, "login");
467 if(disorder_edituser(ds->g->client, disorder_user(ds->g->client),
468 "password", password)) {
469 cgi_set_option("error", "badedit");
470 expand_template(ds, output, "login");
476 login_cookie = 0; /* it'll be invalid now */
477 /* This is a bit duplicative of act_login() */
479 if(disorder_connect_user(c, disorder_user(ds->g->client), password)) {
480 cgi_set_option("error", "loginfailed");
481 expand_template(ds, output, "login");
484 if(disorder_make_cookie(c, &login_cookie)) {
485 cgi_set_option("error", "cookiefailed");
486 expand_template(ds, output, "login");
489 /* Use the new connection henceforth */
492 /* We have a new cookie */
493 header_cookie(output->sink);
495 cgi_set_option("status", "edited");
496 expand_template(ds, output, "login");
499 static void act_reminder(cgi_sink *output,
501 const char *const username = cgi_get("username");
503 if(!username || !*username) {
504 cgi_set_option("error", "nousername");
505 expand_template(ds, output, "login");
508 if(disorder_reminder(ds->g->client, username)) {
509 cgi_set_option("error", "reminderfailed");
510 expand_template(ds, output, "login");
513 cgi_set_option("status", "reminded");
514 expand_template(ds, output, "login");
517 /* expansions *****************************************************************/
519 static void exp_label(int attribute((unused)) nargs,
522 void attribute((unused)) *u) {
523 cgi_output(output, "%s", cgi_label(args[0]));
526 struct trackinfo_state {
528 const struct queue_entry *q;
538 static int compare_result(const void *a, const void *b) {
539 const struct result *ra = a, *rb = b;
542 if(!(c = strcmp(ra->sort, rb->sort)))
543 c = strcmp(ra->track, rb->track);
547 static void exp_search(int nargs,
551 dcgi_state *ds = u, substate;
553 const char *q, *context, *part, *template;
569 assert(!"should never happen");
570 part = context = template = 0; /* quieten compiler */
572 if(ds->tracks == 0) {
573 /* we are the top level, let's get some search results */
574 if(!(q = cgi_get("query"))) return; /* no results yet */
575 if(disorder_search(ds->g->client, q, &tracks, &ntracks)) return;
579 ntracks = ds->ntracks;
581 assert(ntracks != 0);
582 /* sort tracks by the appropriate part */
583 r = xmalloc(ntracks * sizeof *r);
584 for(n = 0; n < ntracks; ++n) {
585 r[n].track = tracks[n];
586 if(disorder_part(ds->g->client, (char **)&r[n].sort,
587 tracks[n], context, part))
588 fatal(0, "disorder_part() failed");
590 qsort(r, ntracks, sizeof (struct result), compare_result);
591 /* expand the 2nd arg once for each group. We re-use the passed-in tracks
592 * array as we know it's guaranteed to be big enough and isn't going to be
593 * used for anything else any more. */
594 memset(&substate, 0, sizeof substate);
599 substate.tracks = tracks;
600 substate.ntracks = 0;
603 && !strcmp(r[m].sort, r[n].sort))
604 tracks[substate.ntracks++] = r[m++].track;
605 substate.last = (m == ntracks);
606 expandstring(output, template, &substate);
611 assert(substate.last != 0);
614 static void exp_stats(int attribute((unused)) nargs,
615 char attribute((unused)) **args,
621 cgi_opentag(output->sink, "pre", "class", "stats", (char *)0);
622 if(!disorder_stats(ds->g->client, &v, 0)) {
624 cgi_output(output, "%s\n", *v++);
626 cgi_closetag(output->sink, "pre");
629 static char *expandarg(const char *arg, dcgi_state *ds) {
635 output.sink = sink_dynstr(&d);
636 expandstring(&output, arg, ds);
637 dynstr_terminate(&d);
641 static void exp_isfiles(int attribute((unused)) nargs,
642 char attribute((unused)) **args,
647 lookups(ds, DC_FILES);
648 sink_printf(output->sink, "%s", bool2str(!!ds->g->nfiles));
651 static void exp_isdirectories(int attribute((unused)) nargs,
652 char attribute((unused)) **args,
657 lookups(ds, DC_DIRS);
658 sink_printf(output->sink, "%s", bool2str(!!ds->g->ndirs));
661 static void exp_choose(int attribute((unused)) nargs,
670 const char *type, *what = expandarg(args[0], ds);
672 if(!strcmp(what, "files")) {
673 lookups(ds, DC_FILES);
674 files = ds->g->files;
675 nfiles = ds->g->nfiles;
677 } else if(!strcmp(what, "directories")) {
678 lookups(ds, DC_DIRS);
680 nfiles = ds->g->ndirs;
683 error(0, "unknown @choose@ argument '%s'", what);
686 e = xmalloc(nfiles * sizeof (struct entry));
687 for(n = 0; n < nfiles; ++n) {
688 e[n].path = files[n];
689 e[n].sort = trackname_transform(type, files[n], "sort");
690 e[n].display = trackname_transform(type, files[n], "display");
692 qsort(e, nfiles, sizeof (struct entry), compare_entry);
693 memset(&substate, 0, sizeof substate);
696 for(n = 0; n < nfiles; ++n) {
697 substate.last = (n == nfiles - 1);
699 substate.entry = &e[n];
700 expandstring(output, args[1], &substate);
705 static void exp_file(int attribute((unused)) nargs,
706 char attribute((unused)) **args,
712 cgi_output(output, "%s", ds->entry->path);
714 cgi_output(output, "%s", ds->track->track);
716 cgi_output(output, "%s", ds->tracks[0]);
719 static void exp_navigate(int attribute((unused)) nargs,
725 const char *path = expandarg(args[0], ds);
730 memset(&substate, 0, sizeof substate);
732 ptr = path + 1; /* skip root */
734 substate.nav_path = path;
737 while(*ptr && *ptr != '/')
739 substate.last = !*ptr;
740 substate.nav_len = ptr - path;
741 substate.nav_dirlen = dirlen;
742 expandstring(output, args[1], &substate);
743 dirlen = substate.nav_len;
750 static void exp_fullname(int attribute((unused)) nargs,
751 char attribute((unused)) **args,
755 cgi_output(output, "%.*s", ds->nav_len, ds->nav_path);
758 static void exp_basename(int nargs,
766 if((s = strrchr(args[0], '/'))) ++s;
768 cgi_output(output, "%s", s);
770 cgi_output(output, "%.*s", ds->nav_len - ds->nav_dirlen - 1,
771 ds->nav_path + ds->nav_dirlen + 1);
774 static void exp_dirname(int nargs,
782 if((s = strrchr(args[0], '/')))
783 cgi_output(output, "%.*s", (int)(s - args[0]), args[0]);
785 cgi_output(output, "%.*s", ds->nav_dirlen, ds->nav_path);
788 static void exp_files(int attribute((unused)) nargs,
794 const char *nfiles_arg, *directory;
798 memset(&substate, 0, sizeof substate);
800 if((directory = cgi_get("directory"))) {
801 /* Prefs for whole directory. */
802 lookups(ds, DC_FILES);
803 /* Synthesize args for the file list. */
804 nfiles = ds->g->nfiles;
805 for(numfile = 0; numfile < nfiles; ++numfile) {
806 k = xmalloc(sizeof *k);
807 byte_xasprintf((char **)&k->name, "%d_file", numfile);
808 k->value = ds->g->files[numfile];
813 /* Args already present. */
814 if((nfiles_arg = cgi_get("files"))) nfiles = atoi(nfiles_arg);
817 for(numfile = 0; numfile < nfiles; ++numfile) {
818 substate.index = numfile;
819 expandstring(output, args[0], &substate);
823 static void exp_nfiles(int attribute((unused)) nargs,
824 char attribute((unused)) **args,
828 const char *files_arg;
830 if(cgi_get("directory")) {
831 lookups(ds, DC_FILES);
832 cgi_output(output, "%d", ds->g->nfiles);
833 } else if((files_arg = cgi_get("files")))
834 cgi_output(output, "%s", files_arg);
836 cgi_output(output, "1");
839 static void exp_image(int attribute((unused)) nargs,
842 void attribute((unused)) *u) {
844 const char *imagestem;
846 byte_xasprintf(&labelname, "images.%s", args[0]);
847 if(cgi_label_exists(labelname))
848 imagestem = cgi_label(labelname);
849 else if(strchr(args[0], '.'))
852 byte_xasprintf((char **)&imagestem, "%s.png", args[0]);
853 if(cgi_label_exists("url.static"))
854 cgi_output(output, "%s/%s", cgi_label("url.static"), imagestem);
856 cgi_output(output, "/disorder/%s", imagestem);