| 1 | /* |
| 2 | * This file is part of DisOrder. |
| 3 | * Copyright (C) 2004-2008 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 "server-cgi.h" |
| 42 | #include "log.h" |
| 43 | #include "configuration.h" |
| 44 | #include "table.h" |
| 45 | #include "queue.h" |
| 46 | #include "plugin.h" |
| 47 | #include "split.h" |
| 48 | #include "wstat.h" |
| 49 | #include "kvp.h" |
| 50 | #include "syscalls.h" |
| 51 | #include "printf.h" |
| 52 | #include "regsub.h" |
| 53 | #include "defs.h" |
| 54 | #include "trackname.h" |
| 55 | #include "charset.h" |
| 56 | #include "dcgi.h" |
| 57 | #include "url.h" |
| 58 | #include "mime.h" |
| 59 | #include "sendmail.h" |
| 60 | #include "base64.h" |
| 61 | |
| 62 | char *login_cookie; |
| 63 | |
| 64 | static void expand(cgi_sink *output, |
| 65 | const char *template, |
| 66 | dcgi_state *ds); |
| 67 | static void expandstring(cgi_sink *output, |
| 68 | const char *string, |
| 69 | dcgi_state *ds); |
| 70 | |
| 71 | struct entry { |
| 72 | const char *path; |
| 73 | const char *sort; |
| 74 | const char *display; |
| 75 | }; |
| 76 | |
| 77 | static const char nonce_base64_table[] = |
| 78 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-/*"; |
| 79 | |
| 80 | static const char *nonce(void) { |
| 81 | static uint32_t count; |
| 82 | |
| 83 | struct ndata { |
| 84 | uint16_t count; |
| 85 | uint16_t pid; |
| 86 | uint32_t when; |
| 87 | } nd; |
| 88 | |
| 89 | nd.count = count++; |
| 90 | nd.pid = (uint32_t)getpid(); |
| 91 | nd.when = (uint32_t)time(0); |
| 92 | return generic_to_base64((void *)&nd, sizeof nd, |
| 93 | nonce_base64_table); |
| 94 | } |
| 95 | |
| 96 | static int compare_entry(const void *a, const void *b) { |
| 97 | const struct entry *ea = a, *eb = b; |
| 98 | |
| 99 | return compare_tracks(ea->sort, eb->sort, |
| 100 | ea->display, eb->display, |
| 101 | ea->path, eb->path); |
| 102 | } |
| 103 | |
| 104 | static const char *front_url(void) { |
| 105 | char *url; |
| 106 | const char *mgmt; |
| 107 | |
| 108 | /* preserve management interface visibility */ |
| 109 | if((mgmt = cgi_get("mgmt")) && !strcmp(mgmt, "true")) { |
| 110 | byte_xasprintf(&url, "%s?mgmt=true", config->url); |
| 111 | return url; |
| 112 | } |
| 113 | return config->url; |
| 114 | } |
| 115 | |
| 116 | static void header_cookie(struct sink *output) { |
| 117 | struct dynstr d[1]; |
| 118 | struct url u; |
| 119 | |
| 120 | memset(&u, 0, sizeof u); |
| 121 | dynstr_init(d); |
| 122 | parse_url(config->url, &u); |
| 123 | if(login_cookie) { |
| 124 | dynstr_append_string(d, "disorder="); |
| 125 | dynstr_append_string(d, login_cookie); |
| 126 | } else { |
| 127 | /* Force browser to discard cookie */ |
| 128 | dynstr_append_string(d, "disorder=none;Max-Age=0"); |
| 129 | } |
| 130 | if(u.path) { |
| 131 | /* The default domain matches the request host, so we need not override |
| 132 | * that. But the default path only goes up to the rightmost /, which would |
| 133 | * cause the browser to expose the cookie to other CGI programs on the same |
| 134 | * web server. */ |
| 135 | dynstr_append_string(d, ";Version=1;Path="); |
| 136 | /* Formally we are supposed to quote the path, since it invariably has a |
| 137 | * slash in it. However Safari does not parse quoted paths correctly, so |
| 138 | * this won't work. Fortunately nothing else seems to care about proper |
| 139 | * quoting of paths, so in practice we get with it. (See also |
| 140 | * parse_cookie() where we are liberal about cookie paths on the way back |
| 141 | * in.) */ |
| 142 | dynstr_append_string(d, u.path); |
| 143 | } |
| 144 | dynstr_terminate(d); |
| 145 | cgi_header(output, "Set-Cookie", d->vec); |
| 146 | } |
| 147 | |
| 148 | static void redirect(struct sink *output) { |
| 149 | const char *back; |
| 150 | |
| 151 | back = cgi_get("back"); |
| 152 | cgi_header(output, "Location", back && *back ? back : front_url()); |
| 153 | header_cookie(output); |
| 154 | cgi_body(output); |
| 155 | } |
| 156 | |
| 157 | static void expand_template(dcgi_state *ds, cgi_sink *output, |
| 158 | const char *action) { |
| 159 | cgi_header(output->sink, "Content-Type", "text/html"); |
| 160 | header_cookie(output->sink); |
| 161 | cgi_body(output->sink); |
| 162 | expand(output, action, ds); |
| 163 | } |
| 164 | |
| 165 | /* actions ********************************************************************/ |
| 166 | |
| 167 | static void act_disable(cgi_sink *output, |
| 168 | dcgi_state *ds) { |
| 169 | if(ds->g->client) |
| 170 | disorder_disable(ds->g->client); |
| 171 | redirect(output->sink); |
| 172 | } |
| 173 | |
| 174 | static void act_enable(cgi_sink *output, |
| 175 | dcgi_state *ds) { |
| 176 | if(ds->g->client) |
| 177 | disorder_enable(ds->g->client); |
| 178 | redirect(output->sink); |
| 179 | } |
| 180 | |
| 181 | static void act_random_disable(cgi_sink *output, |
| 182 | dcgi_state *ds) { |
| 183 | if(ds->g->client) |
| 184 | disorder_random_disable(ds->g->client); |
| 185 | redirect(output->sink); |
| 186 | } |
| 187 | |
| 188 | static void act_random_enable(cgi_sink *output, |
| 189 | dcgi_state *ds) { |
| 190 | if(ds->g->client) |
| 191 | disorder_random_enable(ds->g->client); |
| 192 | redirect(output->sink); |
| 193 | } |
| 194 | |
| 195 | static void act_remove(cgi_sink *output, |
| 196 | dcgi_state *ds) { |
| 197 | const char *id; |
| 198 | |
| 199 | if(!(id = cgi_get("id"))) fatal(0, "missing id argument"); |
| 200 | if(ds->g->client) |
| 201 | disorder_remove(ds->g->client, id); |
| 202 | redirect(output->sink); |
| 203 | } |
| 204 | |
| 205 | static void act_move(cgi_sink *output, |
| 206 | dcgi_state *ds) { |
| 207 | const char *id, *delta; |
| 208 | |
| 209 | if(!(id = cgi_get("id"))) fatal(0, "missing id argument"); |
| 210 | if(!(delta = cgi_get("delta"))) fatal(0, "missing delta argument"); |
| 211 | if(ds->g->client) |
| 212 | disorder_move(ds->g->client, id, atoi(delta)); |
| 213 | redirect(output->sink); |
| 214 | } |
| 215 | |
| 216 | static void act_scratch(cgi_sink *output, |
| 217 | dcgi_state *ds) { |
| 218 | if(ds->g->client) |
| 219 | disorder_scratch(ds->g->client, cgi_get("id")); |
| 220 | redirect(output->sink); |
| 221 | } |
| 222 | |
| 223 | static void act_playing(cgi_sink *output, dcgi_state *ds) { |
| 224 | char r[1024]; |
| 225 | long refresh = config->refresh, length; |
| 226 | time_t now, fin; |
| 227 | int random_enabled = 0; |
| 228 | int enabled = 0; |
| 229 | |
| 230 | lookups(ds, DC_PLAYING|DC_QUEUE); |
| 231 | cgi_header(output->sink, "Content-Type", "text/html"); |
| 232 | disorder_random_enabled(ds->g->client, &random_enabled); |
| 233 | disorder_enabled(ds->g->client, &enabled); |
| 234 | if(ds->g->playing |
| 235 | && ds->g->playing->state == playing_started /* i.e. not paused */ |
| 236 | && !disorder_length(ds->g->client, ds->g->playing->track, &length) |
| 237 | && length |
| 238 | && ds->g->playing->sofar >= 0) { |
| 239 | /* Try to put the next refresh at the start of the next track. */ |
| 240 | time(&now); |
| 241 | fin = now + length - ds->g->playing->sofar + config->gap; |
| 242 | if(now + refresh > fin) |
| 243 | refresh = fin - now; |
| 244 | } |
| 245 | if(ds->g->queue && ds->g->queue->state == playing_isscratch) { |
| 246 | /* next track is a scratch, don't leave more than the inter-track gap */ |
| 247 | if(refresh > config->gap) |
| 248 | refresh = config->gap; |
| 249 | } |
| 250 | if(!ds->g->playing && ((ds->g->queue |
| 251 | && ds->g->queue->state != playing_random) |
| 252 | || random_enabled) && enabled) { |
| 253 | /* no track playing but playing is enabled and there is something coming |
| 254 | * up, must be in a gap */ |
| 255 | if(refresh > config->gap) |
| 256 | refresh = config->gap; |
| 257 | } |
| 258 | byte_snprintf(r, sizeof r, "%ld;url=%s", refresh > 0 ? refresh : 1, |
| 259 | front_url()); |
| 260 | cgi_header(output->sink, "Refresh", r); |
| 261 | header_cookie(output->sink); |
| 262 | cgi_body(output->sink); |
| 263 | expand(output, "playing", ds); |
| 264 | } |
| 265 | |
| 266 | static void act_play(cgi_sink *output, |
| 267 | dcgi_state *ds) { |
| 268 | const char *track, *dir; |
| 269 | char **tracks; |
| 270 | int ntracks, n; |
| 271 | struct entry *e; |
| 272 | |
| 273 | if((track = cgi_get("file"))) { |
| 274 | disorder_play(ds->g->client, track); |
| 275 | } else if((dir = cgi_get("directory"))) { |
| 276 | if(disorder_files(ds->g->client, dir, 0, &tracks, &ntracks)) ntracks = 0; |
| 277 | if(ntracks) { |
| 278 | e = xmalloc(ntracks * sizeof (struct entry)); |
| 279 | for(n = 0; n < ntracks; ++n) { |
| 280 | e[n].path = tracks[n]; |
| 281 | e[n].sort = trackname_transform("track", tracks[n], "sort"); |
| 282 | e[n].display = trackname_transform("track", tracks[n], "display"); |
| 283 | } |
| 284 | qsort(e, ntracks, sizeof (struct entry), compare_entry); |
| 285 | for(n = 0; n < ntracks; ++n) |
| 286 | disorder_play(ds->g->client, e[n].path); |
| 287 | } |
| 288 | } |
| 289 | /* XXX error handling */ |
| 290 | redirect(output->sink); |
| 291 | } |
| 292 | |
| 293 | static int clamp(int n, int min, int max) { |
| 294 | if(n < min) |
| 295 | return min; |
| 296 | if(n > max) |
| 297 | return max; |
| 298 | return n; |
| 299 | } |
| 300 | |
| 301 | static const char *volume_url(void) { |
| 302 | char *url; |
| 303 | |
| 304 | byte_xasprintf(&url, "%s?action=volume", config->url); |
| 305 | return url; |
| 306 | } |
| 307 | |
| 308 | static void act_volume(cgi_sink *output, dcgi_state *ds) { |
| 309 | const char *l, *r, *d, *back; |
| 310 | int nd, changed = 0;; |
| 311 | |
| 312 | if((d = cgi_get("delta"))) { |
| 313 | lookups(ds, DC_VOLUME); |
| 314 | nd = clamp(atoi(d), -255, 255); |
| 315 | disorder_set_volume(ds->g->client, |
| 316 | clamp(ds->g->volume_left + nd, 0, 255), |
| 317 | clamp(ds->g->volume_right + nd, 0, 255)); |
| 318 | changed = 1; |
| 319 | } else if((l = cgi_get("left")) && (r = cgi_get("right"))) { |
| 320 | disorder_set_volume(ds->g->client, atoi(l), atoi(r)); |
| 321 | changed = 1; |
| 322 | } |
| 323 | if(changed) { |
| 324 | /* redirect back to ourselves (but without the volume-changing bits in the |
| 325 | * URL) */ |
| 326 | cgi_header(output->sink, "Location", |
| 327 | (back = cgi_get("back")) ? back : volume_url()); |
| 328 | header_cookie(output->sink); |
| 329 | cgi_body(output->sink); |
| 330 | } else { |
| 331 | cgi_header(output->sink, "Content-Type", "text/html"); |
| 332 | header_cookie(output->sink); |
| 333 | cgi_body(output->sink); |
| 334 | expand(output, "volume", ds); |
| 335 | } |
| 336 | } |
| 337 | |
| 338 | static void act_prefs_errors(const char *msg, |
| 339 | void attribute((unused)) *u) { |
| 340 | fatal(0, "error splitting parts list: %s", msg); |
| 341 | } |
| 342 | |
| 343 | static const char *numbered_arg(const char *argname, int numfile) { |
| 344 | char *fullname; |
| 345 | |
| 346 | byte_xasprintf(&fullname, "%d_%s", numfile, argname); |
| 347 | return cgi_get(fullname); |
| 348 | } |
| 349 | |
| 350 | static void process_prefs(dcgi_state *ds, int numfile) { |
| 351 | const char *file, *name, *value, *part, *parts, *current, *context; |
| 352 | char **partslist; |
| 353 | |
| 354 | if(!(file = numbered_arg("file", numfile))) |
| 355 | /* The first file doesn't need numbering. */ |
| 356 | if(numfile > 0 || !(file = cgi_get("file"))) |
| 357 | return; |
| 358 | if((parts = numbered_arg("parts", numfile)) |
| 359 | || (parts = cgi_get("parts"))) { |
| 360 | /* Default context is display. Other contexts not actually tested. */ |
| 361 | if(!(context = numbered_arg("context", numfile))) context = "display"; |
| 362 | partslist = split(parts, 0, 0, act_prefs_errors, 0); |
| 363 | while((part = *partslist++)) { |
| 364 | if(!(value = numbered_arg(part, numfile))) |
| 365 | continue; |
| 366 | /* If it's already right (whether regexps or db) don't change anything, |
| 367 | * so we don't fill the database up with rubbish. */ |
| 368 | if(disorder_part(ds->g->client, (char **)¤t, |
| 369 | file, context, part)) |
| 370 | fatal(0, "disorder_part() failed"); |
| 371 | if(!strcmp(current, value)) |
| 372 | continue; |
| 373 | byte_xasprintf((char **)&name, "trackname_%s_%s", context, part); |
| 374 | disorder_set(ds->g->client, file, name, value); |
| 375 | } |
| 376 | if((value = numbered_arg("random", numfile))) |
| 377 | disorder_unset(ds->g->client, file, "pick_at_random"); |
| 378 | else |
| 379 | disorder_set(ds->g->client, file, "pick_at_random", "0"); |
| 380 | if((value = numbered_arg("tags", numfile))) { |
| 381 | if(!*value) |
| 382 | disorder_unset(ds->g->client, file, "tags"); |
| 383 | else |
| 384 | disorder_set(ds->g->client, file, "tags", value); |
| 385 | } |
| 386 | if((value = numbered_arg("weight", numfile))) { |
| 387 | if(!*value || !strcmp(value, "90000")) |
| 388 | disorder_unset(ds->g->client, file, "weight"); |
| 389 | else |
| 390 | disorder_set(ds->g->client, file, "weight", value); |
| 391 | } |
| 392 | } else if((name = cgi_get("name"))) { |
| 393 | /* Raw preferences. Not well supported in the templates at the moment. */ |
| 394 | value = cgi_get("value"); |
| 395 | if(value) |
| 396 | disorder_set(ds->g->client, file, name, value); |
| 397 | else |
| 398 | disorder_unset(ds->g->client, file, name); |
| 399 | } |
| 400 | } |
| 401 | |
| 402 | static void act_prefs(cgi_sink *output, dcgi_state *ds) { |
| 403 | const char *files; |
| 404 | int nfiles, numfile; |
| 405 | |
| 406 | if((files = cgi_get("files"))) nfiles = atoi(files); |
| 407 | else nfiles = 1; |
| 408 | for(numfile = 0; numfile < nfiles; ++numfile) |
| 409 | process_prefs(ds, numfile); |
| 410 | cgi_header(output->sink, "Content-Type", "text/html"); |
| 411 | header_cookie(output->sink); |
| 412 | cgi_body(output->sink); |
| 413 | expand(output, "prefs", ds); |
| 414 | } |
| 415 | |
| 416 | static void act_pause(cgi_sink *output, |
| 417 | dcgi_state *ds) { |
| 418 | if(ds->g->client) |
| 419 | disorder_pause(ds->g->client); |
| 420 | redirect(output->sink); |
| 421 | } |
| 422 | |
| 423 | static void act_resume(cgi_sink *output, |
| 424 | dcgi_state *ds) { |
| 425 | if(ds->g->client) |
| 426 | disorder_resume(ds->g->client); |
| 427 | redirect(output->sink); |
| 428 | } |
| 429 | |
| 430 | static void act_login(cgi_sink *output, |
| 431 | dcgi_state *ds) { |
| 432 | const char *username, *password, *back; |
| 433 | disorder_client *c; |
| 434 | |
| 435 | username = cgi_get("username"); |
| 436 | password = cgi_get("password"); |
| 437 | if(!username || !password |
| 438 | || !strcmp(username, "guest")/*bodge to avoid guest cookies*/) { |
| 439 | /* We're just visiting the login page */ |
| 440 | expand_template(ds, output, "login"); |
| 441 | return; |
| 442 | } |
| 443 | /* We'll need a new connection as we are going to stop being guest */ |
| 444 | c = disorder_new(0); |
| 445 | if(disorder_connect_user(c, username, password)) { |
| 446 | cgi_set_option("error", "loginfailed"); |
| 447 | expand_template(ds, output, "login"); |
| 448 | return; |
| 449 | } |
| 450 | if(disorder_make_cookie(c, &login_cookie)) { |
| 451 | cgi_set_option("error", "cookiefailed"); |
| 452 | expand_template(ds, output, "login"); |
| 453 | return; |
| 454 | } |
| 455 | /* Use the new connection henceforth */ |
| 456 | ds->g->client = c; |
| 457 | ds->g->flags = 0; |
| 458 | /* We have a new cookie */ |
| 459 | header_cookie(output->sink); |
| 460 | cgi_set_option("status", "loginok"); |
| 461 | if((back = cgi_get("back")) && *back) |
| 462 | /* Redirect back to somewhere or other */ |
| 463 | redirect(output->sink); |
| 464 | else |
| 465 | /* Stick to the login page */ |
| 466 | expand_template(ds, output, "login"); |
| 467 | } |
| 468 | |
| 469 | static void act_logout(cgi_sink *output, |
| 470 | dcgi_state *ds) { |
| 471 | disorder_revoke(ds->g->client); |
| 472 | login_cookie = 0; |
| 473 | /* Reconnect as guest */ |
| 474 | disorder_cgi_login(ds, output); |
| 475 | /* Back to the login page */ |
| 476 | cgi_set_option("status", "logoutok"); |
| 477 | expand_template(ds, output, "login"); |
| 478 | } |
| 479 | |
| 480 | static void act_register(cgi_sink *output, |
| 481 | dcgi_state *ds) { |
| 482 | const char *username, *password, *password2, *email; |
| 483 | char *confirm, *content_type; |
| 484 | const char *text, *encoding, *charset; |
| 485 | |
| 486 | username = cgi_get("username"); |
| 487 | password = cgi_get("password1"); |
| 488 | password2 = cgi_get("password2"); |
| 489 | email = cgi_get("email"); |
| 490 | |
| 491 | if(!username || !*username) { |
| 492 | cgi_set_option("error", "nousername"); |
| 493 | expand_template(ds, output, "login"); |
| 494 | return; |
| 495 | } |
| 496 | if(!password || !*password) { |
| 497 | cgi_set_option("error", "nopassword"); |
| 498 | expand_template(ds, output, "login"); |
| 499 | return; |
| 500 | } |
| 501 | if(!password2 || !*password2 || strcmp(password, password2)) { |
| 502 | cgi_set_option("error", "passwordmismatch"); |
| 503 | expand_template(ds, output, "login"); |
| 504 | return; |
| 505 | } |
| 506 | if(!email || !*email) { |
| 507 | cgi_set_option("error", "noemail"); |
| 508 | expand_template(ds, output, "login"); |
| 509 | return; |
| 510 | } |
| 511 | /* We could well do better address validation but for now we'll just do the |
| 512 | * minimum */ |
| 513 | if(!strchr(email, '@')) { |
| 514 | cgi_set_option("error", "bademail"); |
| 515 | expand_template(ds, output, "login"); |
| 516 | return; |
| 517 | } |
| 518 | if(disorder_register(ds->g->client, username, password, email, &confirm)) { |
| 519 | cgi_set_option("error", "cannotregister"); |
| 520 | expand_template(ds, output, "login"); |
| 521 | return; |
| 522 | } |
| 523 | /* Send the user a mail */ |
| 524 | /* TODO templatize this */ |
| 525 | byte_xasprintf((char **)&text, |
| 526 | "Welcome to DisOrder. To active your login, please visit this URL:\n" |
| 527 | "\n" |
| 528 | "%s?c=%s\n", config->url, urlencodestring(confirm)); |
| 529 | if(!(text = mime_encode_text(text, &charset, &encoding))) |
| 530 | fatal(0, "cannot encode email"); |
| 531 | byte_xasprintf(&content_type, "text/plain;charset=%s", |
| 532 | quote822(charset, 0)); |
| 533 | sendmail("", config->mail_sender, email, "Welcome to DisOrder", |
| 534 | encoding, content_type, text); /* TODO error checking */ |
| 535 | /* We'll go back to the login page with a suitable message */ |
| 536 | cgi_set_option("status", "registered"); |
| 537 | expand_template(ds, output, "login"); |
| 538 | } |
| 539 | |
| 540 | static void act_confirm(cgi_sink *output, |
| 541 | dcgi_state *ds) { |
| 542 | const char *confirmation; |
| 543 | |
| 544 | if(!(confirmation = cgi_get("c"))) { |
| 545 | cgi_set_option("error", "noconfirm"); |
| 546 | expand_template(ds, output, "login"); |
| 547 | } |
| 548 | /* Confirm our registration */ |
| 549 | if(disorder_confirm(ds->g->client, confirmation)) { |
| 550 | cgi_set_option("error", "badconfirm"); |
| 551 | expand_template(ds, output, "login"); |
| 552 | } |
| 553 | /* Get a cookie */ |
| 554 | if(disorder_make_cookie(ds->g->client, &login_cookie)) { |
| 555 | cgi_set_option("error", "cookiefailed"); |
| 556 | expand_template(ds, output, "login"); |
| 557 | return; |
| 558 | } |
| 559 | /* Discard any cached data JIC */ |
| 560 | ds->g->flags = 0; |
| 561 | /* We have a new cookie */ |
| 562 | header_cookie(output->sink); |
| 563 | cgi_set_option("status", "confirmed"); |
| 564 | expand_template(ds, output, "login"); |
| 565 | } |
| 566 | |
| 567 | static void act_edituser(cgi_sink *output, |
| 568 | dcgi_state *ds) { |
| 569 | const char *email = cgi_get("email"), *password = cgi_get("changepassword1"); |
| 570 | const char *password2 = cgi_get("changepassword2"); |
| 571 | int newpassword = 0; |
| 572 | disorder_client *c; |
| 573 | |
| 574 | if((password && *password) || (password && *password2)) { |
| 575 | if(!password || !password2 || strcmp(password, password2)) { |
| 576 | cgi_set_option("error", "passwordmismatch"); |
| 577 | expand_template(ds, output, "login"); |
| 578 | return; |
| 579 | } |
| 580 | } else |
| 581 | password = password2 = 0; |
| 582 | |
| 583 | if(email) { |
| 584 | if(disorder_edituser(ds->g->client, disorder_user(ds->g->client), |
| 585 | "email", email)) { |
| 586 | cgi_set_option("error", "badedit"); |
| 587 | expand_template(ds, output, "login"); |
| 588 | return; |
| 589 | } |
| 590 | } |
| 591 | if(password) { |
| 592 | if(disorder_edituser(ds->g->client, disorder_user(ds->g->client), |
| 593 | "password", password)) { |
| 594 | cgi_set_option("error", "badedit"); |
| 595 | expand_template(ds, output, "login"); |
| 596 | return; |
| 597 | } |
| 598 | newpassword = 1; |
| 599 | } |
| 600 | if(newpassword) { |
| 601 | login_cookie = 0; /* it'll be invalid now */ |
| 602 | /* This is a bit duplicative of act_login() */ |
| 603 | c = disorder_new(0); |
| 604 | if(disorder_connect_user(c, disorder_user(ds->g->client), password)) { |
| 605 | cgi_set_option("error", "loginfailed"); |
| 606 | expand_template(ds, output, "login"); |
| 607 | return; |
| 608 | } |
| 609 | if(disorder_make_cookie(c, &login_cookie)) { |
| 610 | cgi_set_option("error", "cookiefailed"); |
| 611 | expand_template(ds, output, "login"); |
| 612 | return; |
| 613 | } |
| 614 | /* Use the new connection henceforth */ |
| 615 | ds->g->client = c; |
| 616 | ds->g->flags = 0; |
| 617 | /* We have a new cookie */ |
| 618 | header_cookie(output->sink); |
| 619 | } |
| 620 | cgi_set_option("status", "edited"); |
| 621 | expand_template(ds, output, "login"); |
| 622 | } |
| 623 | |
| 624 | static void act_reminder(cgi_sink *output, |
| 625 | dcgi_state *ds) { |
| 626 | const char *const username = cgi_get("username"); |
| 627 | |
| 628 | if(!username || !*username) { |
| 629 | cgi_set_option("error", "nousername"); |
| 630 | expand_template(ds, output, "login"); |
| 631 | return; |
| 632 | } |
| 633 | if(disorder_reminder(ds->g->client, username)) { |
| 634 | cgi_set_option("error", "reminderfailed"); |
| 635 | expand_template(ds, output, "login"); |
| 636 | return; |
| 637 | } |
| 638 | cgi_set_option("status", "reminded"); |
| 639 | expand_template(ds, output, "login"); |
| 640 | } |
| 641 | |
| 642 | static const struct action { |
| 643 | const char *name; |
| 644 | void (*handler)(cgi_sink *output, dcgi_state *ds); |
| 645 | } actions[] = { |
| 646 | { "confirm", act_confirm }, |
| 647 | { "disable", act_disable }, |
| 648 | { "edituser", act_edituser }, |
| 649 | { "enable", act_enable }, |
| 650 | { "login", act_login }, |
| 651 | { "logout", act_logout }, |
| 652 | { "move", act_move }, |
| 653 | { "pause", act_pause }, |
| 654 | { "play", act_play }, |
| 655 | { "playing", act_playing }, |
| 656 | { "prefs", act_prefs }, |
| 657 | { "random-disable", act_random_disable }, |
| 658 | { "random-enable", act_random_enable }, |
| 659 | { "register", act_register }, |
| 660 | { "reminder", act_reminder }, |
| 661 | { "remove", act_remove }, |
| 662 | { "resume", act_resume }, |
| 663 | { "scratch", act_scratch }, |
| 664 | { "volume", act_volume }, |
| 665 | }; |
| 666 | |
| 667 | /* expansions *****************************************************************/ |
| 668 | |
| 669 | static void exp_label(int attribute((unused)) nargs, |
| 670 | char **args, |
| 671 | cgi_sink *output, |
| 672 | void attribute((unused)) *u) { |
| 673 | cgi_output(output, "%s", cgi_label(args[0])); |
| 674 | } |
| 675 | |
| 676 | struct trackinfo_state { |
| 677 | dcgi_state *ds; |
| 678 | const struct queue_entry *q; |
| 679 | long length; |
| 680 | time_t when; |
| 681 | }; |
| 682 | |
| 683 | struct result { |
| 684 | char *track; |
| 685 | const char *sort; |
| 686 | }; |
| 687 | |
| 688 | static int compare_result(const void *a, const void *b) { |
| 689 | const struct result *ra = a, *rb = b; |
| 690 | int c; |
| 691 | |
| 692 | if(!(c = strcmp(ra->sort, rb->sort))) |
| 693 | c = strcmp(ra->track, rb->track); |
| 694 | return c; |
| 695 | } |
| 696 | |
| 697 | static void exp_search(int nargs, |
| 698 | char **args, |
| 699 | cgi_sink *output, |
| 700 | void *u) { |
| 701 | dcgi_state *ds = u, substate; |
| 702 | char **tracks; |
| 703 | const char *q, *context, *part, *template; |
| 704 | int ntracks, n, m; |
| 705 | struct result *r; |
| 706 | |
| 707 | switch(nargs) { |
| 708 | case 2: |
| 709 | part = args[0]; |
| 710 | context = "sort"; |
| 711 | template = args[1]; |
| 712 | break; |
| 713 | case 3: |
| 714 | part = args[0]; |
| 715 | context = args[1]; |
| 716 | template = args[2]; |
| 717 | break; |
| 718 | default: |
| 719 | assert(!"should never happen"); |
| 720 | part = context = template = 0; /* quieten compiler */ |
| 721 | } |
| 722 | if(ds->tracks == 0) { |
| 723 | /* we are the top level, let's get some search results */ |
| 724 | if(!(q = cgi_get("query"))) return; /* no results yet */ |
| 725 | if(disorder_search(ds->g->client, q, &tracks, &ntracks)) return; |
| 726 | if(!ntracks) return; |
| 727 | } else { |
| 728 | tracks = ds->tracks; |
| 729 | ntracks = ds->ntracks; |
| 730 | } |
| 731 | assert(ntracks != 0); |
| 732 | /* sort tracks by the appropriate part */ |
| 733 | r = xmalloc(ntracks * sizeof *r); |
| 734 | for(n = 0; n < ntracks; ++n) { |
| 735 | r[n].track = tracks[n]; |
| 736 | if(disorder_part(ds->g->client, (char **)&r[n].sort, |
| 737 | tracks[n], context, part)) |
| 738 | fatal(0, "disorder_part() failed"); |
| 739 | } |
| 740 | qsort(r, ntracks, sizeof (struct result), compare_result); |
| 741 | /* expand the 2nd arg once for each group. We re-use the passed-in tracks |
| 742 | * array as we know it's guaranteed to be big enough and isn't going to be |
| 743 | * used for anything else any more. */ |
| 744 | memset(&substate, 0, sizeof substate); |
| 745 | substate.g = ds->g; |
| 746 | substate.first = 1; |
| 747 | n = 0; |
| 748 | while(n < ntracks) { |
| 749 | substate.tracks = tracks; |
| 750 | substate.ntracks = 0; |
| 751 | m = n; |
| 752 | while(m < ntracks |
| 753 | && !strcmp(r[m].sort, r[n].sort)) |
| 754 | tracks[substate.ntracks++] = r[m++].track; |
| 755 | substate.last = (m == ntracks); |
| 756 | expandstring(output, template, &substate); |
| 757 | substate.index++; |
| 758 | substate.first = 0; |
| 759 | n = m; |
| 760 | } |
| 761 | assert(substate.last != 0); |
| 762 | } |
| 763 | |
| 764 | static void exp_stats(int attribute((unused)) nargs, |
| 765 | char attribute((unused)) **args, |
| 766 | cgi_sink *output, |
| 767 | void *u) { |
| 768 | dcgi_state *ds = u; |
| 769 | char **v; |
| 770 | |
| 771 | cgi_opentag(output->sink, "pre", "class", "stats", (char *)0); |
| 772 | if(!disorder_stats(ds->g->client, &v, 0)) { |
| 773 | while(*v) |
| 774 | cgi_output(output, "%s\n", *v++); |
| 775 | } |
| 776 | cgi_closetag(output->sink, "pre"); |
| 777 | } |
| 778 | |
| 779 | static char *expandarg(const char *arg, dcgi_state *ds) { |
| 780 | struct dynstr d; |
| 781 | cgi_sink output; |
| 782 | |
| 783 | dynstr_init(&d); |
| 784 | output.quote = 0; |
| 785 | output.sink = sink_dynstr(&d); |
| 786 | expandstring(&output, arg, ds); |
| 787 | dynstr_terminate(&d); |
| 788 | return d.vec; |
| 789 | } |
| 790 | |
| 791 | static void exp_isfiles(int attribute((unused)) nargs, |
| 792 | char attribute((unused)) **args, |
| 793 | cgi_sink *output, |
| 794 | void *u) { |
| 795 | dcgi_state *ds = u; |
| 796 | |
| 797 | lookups(ds, DC_FILES); |
| 798 | sink_printf(output->sink, "%s", bool2str(!!ds->g->nfiles)); |
| 799 | } |
| 800 | |
| 801 | static void exp_isdirectories(int attribute((unused)) nargs, |
| 802 | char attribute((unused)) **args, |
| 803 | cgi_sink *output, |
| 804 | void *u) { |
| 805 | dcgi_state *ds = u; |
| 806 | |
| 807 | lookups(ds, DC_DIRS); |
| 808 | sink_printf(output->sink, "%s", bool2str(!!ds->g->ndirs)); |
| 809 | } |
| 810 | |
| 811 | static void exp_choose(int attribute((unused)) nargs, |
| 812 | char **args, |
| 813 | cgi_sink *output, |
| 814 | void *u) { |
| 815 | dcgi_state *ds = u; |
| 816 | dcgi_state substate; |
| 817 | int nfiles, n; |
| 818 | char **files; |
| 819 | struct entry *e; |
| 820 | const char *type, *what = expandarg(args[0], ds); |
| 821 | |
| 822 | if(!strcmp(what, "files")) { |
| 823 | lookups(ds, DC_FILES); |
| 824 | files = ds->g->files; |
| 825 | nfiles = ds->g->nfiles; |
| 826 | type = "track"; |
| 827 | } else if(!strcmp(what, "directories")) { |
| 828 | lookups(ds, DC_DIRS); |
| 829 | files = ds->g->dirs; |
| 830 | nfiles = ds->g->ndirs; |
| 831 | type = "dir"; |
| 832 | } else { |
| 833 | error(0, "unknown @choose@ argument '%s'", what); |
| 834 | return; |
| 835 | } |
| 836 | e = xmalloc(nfiles * sizeof (struct entry)); |
| 837 | for(n = 0; n < nfiles; ++n) { |
| 838 | e[n].path = files[n]; |
| 839 | e[n].sort = trackname_transform(type, files[n], "sort"); |
| 840 | e[n].display = trackname_transform(type, files[n], "display"); |
| 841 | } |
| 842 | qsort(e, nfiles, sizeof (struct entry), compare_entry); |
| 843 | memset(&substate, 0, sizeof substate); |
| 844 | substate.g = ds->g; |
| 845 | substate.first = 1; |
| 846 | for(n = 0; n < nfiles; ++n) { |
| 847 | substate.last = (n == nfiles - 1); |
| 848 | substate.index = n; |
| 849 | substate.entry = &e[n]; |
| 850 | expandstring(output, args[1], &substate); |
| 851 | substate.first = 0; |
| 852 | } |
| 853 | } |
| 854 | |
| 855 | static void exp_file(int attribute((unused)) nargs, |
| 856 | char attribute((unused)) **args, |
| 857 | cgi_sink *output, |
| 858 | void *u) { |
| 859 | dcgi_state *ds = u; |
| 860 | |
| 861 | if(ds->entry) |
| 862 | cgi_output(output, "%s", ds->entry->path); |
| 863 | else if(ds->track) |
| 864 | cgi_output(output, "%s", ds->track->track); |
| 865 | else if(ds->tracks) |
| 866 | cgi_output(output, "%s", ds->tracks[0]); |
| 867 | } |
| 868 | |
| 869 | static void exp_navigate(int attribute((unused)) nargs, |
| 870 | char **args, |
| 871 | cgi_sink *output, |
| 872 | void *u) { |
| 873 | dcgi_state *ds = u; |
| 874 | dcgi_state substate; |
| 875 | const char *path = expandarg(args[0], ds); |
| 876 | const char *ptr; |
| 877 | int dirlen; |
| 878 | |
| 879 | if(*path) { |
| 880 | memset(&substate, 0, sizeof substate); |
| 881 | substate.g = ds->g; |
| 882 | ptr = path + 1; /* skip root */ |
| 883 | dirlen = 0; |
| 884 | substate.nav_path = path; |
| 885 | substate.first = 1; |
| 886 | while(*ptr) { |
| 887 | while(*ptr && *ptr != '/') |
| 888 | ++ptr; |
| 889 | substate.last = !*ptr; |
| 890 | substate.nav_len = ptr - path; |
| 891 | substate.nav_dirlen = dirlen; |
| 892 | expandstring(output, args[1], &substate); |
| 893 | dirlen = substate.nav_len; |
| 894 | if(*ptr) ++ptr; |
| 895 | substate.first = 0; |
| 896 | } |
| 897 | } |
| 898 | } |
| 899 | |
| 900 | static void exp_fullname(int attribute((unused)) nargs, |
| 901 | char attribute((unused)) **args, |
| 902 | cgi_sink *output, |
| 903 | void *u) { |
| 904 | dcgi_state *ds = u; |
| 905 | cgi_output(output, "%.*s", ds->nav_len, ds->nav_path); |
| 906 | } |
| 907 | |
| 908 | static void exp_basename(int nargs, |
| 909 | char **args, |
| 910 | cgi_sink *output, |
| 911 | void *u) { |
| 912 | dcgi_state *ds = u; |
| 913 | const char *s; |
| 914 | |
| 915 | if(nargs) { |
| 916 | if((s = strrchr(args[0], '/'))) ++s; |
| 917 | else s = args[0]; |
| 918 | cgi_output(output, "%s", s); |
| 919 | } else |
| 920 | cgi_output(output, "%.*s", ds->nav_len - ds->nav_dirlen - 1, |
| 921 | ds->nav_path + ds->nav_dirlen + 1); |
| 922 | } |
| 923 | |
| 924 | static void exp_dirname(int nargs, |
| 925 | char **args, |
| 926 | cgi_sink *output, |
| 927 | void *u) { |
| 928 | dcgi_state *ds = u; |
| 929 | const char *s; |
| 930 | |
| 931 | if(nargs) { |
| 932 | if((s = strrchr(args[0], '/'))) |
| 933 | cgi_output(output, "%.*s", (int)(s - args[0]), args[0]); |
| 934 | } else |
| 935 | cgi_output(output, "%.*s", ds->nav_dirlen, ds->nav_path); |
| 936 | } |
| 937 | |
| 938 | static void exp_files(int attribute((unused)) nargs, |
| 939 | char **args, |
| 940 | cgi_sink *output, |
| 941 | void *u) { |
| 942 | dcgi_state *ds = u; |
| 943 | dcgi_state substate; |
| 944 | const char *nfiles_arg, *directory; |
| 945 | int nfiles, numfile; |
| 946 | struct kvp *k; |
| 947 | |
| 948 | memset(&substate, 0, sizeof substate); |
| 949 | substate.g = ds->g; |
| 950 | if((directory = cgi_get("directory"))) { |
| 951 | /* Prefs for whole directory. */ |
| 952 | lookups(ds, DC_FILES); |
| 953 | /* Synthesize args for the file list. */ |
| 954 | nfiles = ds->g->nfiles; |
| 955 | for(numfile = 0; numfile < nfiles; ++numfile) { |
| 956 | k = xmalloc(sizeof *k); |
| 957 | byte_xasprintf((char **)&k->name, "%d_file", numfile); |
| 958 | k->value = ds->g->files[numfile]; |
| 959 | k->next = cgi_args; |
| 960 | cgi_args = k; |
| 961 | } |
| 962 | } else { |
| 963 | /* Args already present. */ |
| 964 | if((nfiles_arg = cgi_get("files"))) nfiles = atoi(nfiles_arg); |
| 965 | else nfiles = 1; |
| 966 | } |
| 967 | for(numfile = 0; numfile < nfiles; ++numfile) { |
| 968 | substate.index = numfile; |
| 969 | expandstring(output, args[0], &substate); |
| 970 | } |
| 971 | } |
| 972 | |
| 973 | static void exp_nfiles(int attribute((unused)) nargs, |
| 974 | char attribute((unused)) **args, |
| 975 | cgi_sink *output, |
| 976 | void *u) { |
| 977 | dcgi_state *ds = u; |
| 978 | const char *files_arg; |
| 979 | |
| 980 | if(cgi_get("directory")) { |
| 981 | lookups(ds, DC_FILES); |
| 982 | cgi_output(output, "%d", ds->g->nfiles); |
| 983 | } else if((files_arg = cgi_get("files"))) |
| 984 | cgi_output(output, "%s", files_arg); |
| 985 | else |
| 986 | cgi_output(output, "1"); |
| 987 | } |
| 988 | |
| 989 | static void exp_image(int attribute((unused)) nargs, |
| 990 | char **args, |
| 991 | cgi_sink *output, |
| 992 | void attribute((unused)) *u) { |
| 993 | char *labelname; |
| 994 | const char *imagestem; |
| 995 | |
| 996 | byte_xasprintf(&labelname, "images.%s", args[0]); |
| 997 | if(cgi_label_exists(labelname)) |
| 998 | imagestem = cgi_label(labelname); |
| 999 | else if(strchr(args[0], '.')) |
| 1000 | imagestem = args[0]; |
| 1001 | else |
| 1002 | byte_xasprintf((char **)&imagestem, "%s.png", args[0]); |
| 1003 | if(cgi_label_exists("url.static")) |
| 1004 | cgi_output(output, "%s/%s", cgi_label("url.static"), imagestem); |
| 1005 | else |
| 1006 | cgi_output(output, "/disorder/%s", imagestem); |
| 1007 | } |
| 1008 | |
| 1009 | static const struct cgi_expansion expansions[] = { |
| 1010 | { "#", 0, INT_MAX, EXP_MAGIC, exp_comment }, |
| 1011 | { "action", 0, 0, 0, exp_action }, |
| 1012 | { "and", 0, INT_MAX, EXP_MAGIC, exp_and }, |
| 1013 | { "arg", 1, 1, 0, exp_arg }, |
| 1014 | { "basename", 0, 1, 0, exp_basename }, |
| 1015 | { "choose", 2, 2, EXP_MAGIC, exp_choose }, |
| 1016 | { "define", 3, 3, EXP_MAGIC, exp_define }, |
| 1017 | { "dirname", 0, 1, 0, exp_dirname }, |
| 1018 | { "enabled", 0, 0, 0, exp_enabled }, |
| 1019 | { "eq", 2, 2, 0, exp_eq }, |
| 1020 | { "file", 0, 0, 0, exp_file }, |
| 1021 | { "files", 1, 1, EXP_MAGIC, exp_files }, |
| 1022 | { "fullname", 0, 0, 0, exp_fullname }, |
| 1023 | { "id", 0, 0, 0, exp_id }, |
| 1024 | { "if", 2, 3, EXP_MAGIC, exp_if }, |
| 1025 | { "image", 1, 1, 0, exp_image }, |
| 1026 | { "include", 1, 1, 0, exp_include }, |
| 1027 | { "index", 0, 0, 0, exp_index }, |
| 1028 | { "isdirectories", 0, 0, 0, exp_isdirectories }, |
| 1029 | { "isfiles", 0, 0, 0, exp_isfiles }, |
| 1030 | { "isfirst", 0, 0, 0, exp_isfirst }, |
| 1031 | { "islast", 0, 0, 0, exp_islast }, |
| 1032 | { "isnew", 0, 0, 0, exp_isnew }, |
| 1033 | { "isplaying", 0, 0, 0, exp_isplaying }, |
| 1034 | { "isqueue", 0, 0, 0, exp_isqueue }, |
| 1035 | { "isrecent", 0, 0, 0, exp_isrecent }, |
| 1036 | { "label", 1, 1, 0, exp_label }, |
| 1037 | { "length", 0, 0, 0, exp_length }, |
| 1038 | { "movable", 0, 0, 0, exp_movable }, |
| 1039 | { "navigate", 2, 2, EXP_MAGIC, exp_navigate }, |
| 1040 | { "ne", 2, 2, 0, exp_ne }, |
| 1041 | { "new", 1, 1, EXP_MAGIC, exp_new }, |
| 1042 | { "nfiles", 0, 0, 0, exp_nfiles }, |
| 1043 | { "nonce", 0, 0, 0, exp_nonce }, |
| 1044 | { "not", 1, 1, 0, exp_not }, |
| 1045 | { "or", 0, INT_MAX, EXP_MAGIC, exp_or }, |
| 1046 | { "parity", 0, 0, 0, exp_parity }, |
| 1047 | { "part", 1, 3, 0, exp_part }, |
| 1048 | { "paused", 0, 0, 0, exp_paused }, |
| 1049 | { "playing", 1, 1, EXP_MAGIC, exp_playing }, |
| 1050 | { "pref", 2, 2, 0, exp_pref }, |
| 1051 | { "prefname", 0, 0, 0, exp_prefname }, |
| 1052 | { "prefs", 2, 2, EXP_MAGIC, exp_prefs }, |
| 1053 | { "prefvalue", 0, 0, 0, exp_prefvalue }, |
| 1054 | { "queue", 1, 1, EXP_MAGIC, exp_queue }, |
| 1055 | { "random-enabled", 0, 0, 0, exp_random_enabled }, |
| 1056 | { "recent", 1, 1, EXP_MAGIC, exp_recent }, |
| 1057 | { "removable", 0, 0, 0, exp_removable }, |
| 1058 | { "resolve", 1, 1, 0, exp_resolve }, |
| 1059 | { "right", 1, 3, EXP_MAGIC, exp_right }, |
| 1060 | { "scratchable", 0, 0, 0, exp_scratchable }, |
| 1061 | { "search", 2, 3, EXP_MAGIC, exp_search }, |
| 1062 | { "server-version", 0, 0, 0, exp_server_version }, |
| 1063 | { "shell", 1, 1, 0, exp_shell }, |
| 1064 | { "state", 0, 0, 0, exp_state }, |
| 1065 | { "stats", 0, 0, 0, exp_stats }, |
| 1066 | { "thisurl", 0, 0, 0, exp_thisurl }, |
| 1067 | { "track", 0, 0, 0, exp_track }, |
| 1068 | { "trackstate", 1, 1, 0, exp_trackstate }, |
| 1069 | { "transform", 2, 3, 0, exp_transform }, |
| 1070 | { "url", 0, 0, 0, exp_url }, |
| 1071 | { "urlquote", 1, 1, 0, exp_urlquote }, |
| 1072 | { "user", 0, 0, 0, exp_user }, |
| 1073 | { "userinfo", 1, 1, 0, exp_userinfo }, |
| 1074 | { "version", 0, 0, 0, exp_version }, |
| 1075 | { "volume", 1, 1, 0, exp_volume }, |
| 1076 | { "when", 0, 0, 0, exp_when }, |
| 1077 | { "who", 0, 0, 0, exp_who } |
| 1078 | }; |
| 1079 | |
| 1080 | static void expand(cgi_sink *output, |
| 1081 | const char *template, |
| 1082 | dcgi_state *ds) { |
| 1083 | cgi_expand(template, |
| 1084 | expansions, sizeof expansions / sizeof *expansions, |
| 1085 | output, |
| 1086 | ds); |
| 1087 | } |
| 1088 | |
| 1089 | static void expandstring(cgi_sink *output, |
| 1090 | const char *string, |
| 1091 | dcgi_state *ds) { |
| 1092 | cgi_expand_string("", |
| 1093 | string, |
| 1094 | expansions, sizeof expansions / sizeof *expansions, |
| 1095 | output, |
| 1096 | ds); |
| 1097 | } |
| 1098 | |
| 1099 | static void perform_action(cgi_sink *output, dcgi_state *ds, |
| 1100 | const char *action) { |
| 1101 | int n; |
| 1102 | |
| 1103 | /* We don't ever want anything to be cached */ |
| 1104 | cgi_header(output->sink, "Cache-Control", "no-cache"); |
| 1105 | if((n = TABLE_FIND(actions, struct action, name, action)) >= 0) |
| 1106 | actions[n].handler(output, ds); |
| 1107 | else |
| 1108 | expand_template(ds, output, action); |
| 1109 | } |
| 1110 | |
| 1111 | void disorder_cgi(cgi_sink *output, dcgi_state *ds) { |
| 1112 | const char *action = cgi_get("action"); |
| 1113 | |
| 1114 | if(!action) { |
| 1115 | /* We allow URLs which are just confirm=... in order to keep confirmation |
| 1116 | * URLs, which are user-facing, as short as possible. */ |
| 1117 | if(cgi_get("c")) |
| 1118 | action = "confirm"; |
| 1119 | else |
| 1120 | action = "playing"; |
| 1121 | } |
| 1122 | perform_action(output, ds, action); |
| 1123 | } |
| 1124 | |
| 1125 | void disorder_cgi_error(cgi_sink *output, dcgi_state *ds, |
| 1126 | const char *msg) { |
| 1127 | cgi_set_option("error", msg); |
| 1128 | perform_action(output, ds, "error"); |
| 1129 | } |
| 1130 | |
| 1131 | /** @brief Log in as the current user or guest if none */ |
| 1132 | void disorder_cgi_login(dcgi_state *ds, cgi_sink *output) { |
| 1133 | /* Create a new connection */ |
| 1134 | ds->g->client = disorder_new(0); |
| 1135 | /* Forget everything we knew */ |
| 1136 | ds->g->flags = 0; |
| 1137 | /* Reconnect */ |
| 1138 | if(disorder_connect_cookie(ds->g->client, login_cookie)) { |
| 1139 | disorder_cgi_error(output, ds, "connect"); |
| 1140 | exit(0); |
| 1141 | } |
| 1142 | /* If there was a cookie but it went bad, we forget it */ |
| 1143 | if(login_cookie && !strcmp(disorder_user(ds->g->client), "guest")) |
| 1144 | login_cookie = 0; |
| 1145 | } |
| 1146 | |
| 1147 | /* |
| 1148 | Local Variables: |
| 1149 | c-basic-offset:2 |
| 1150 | comment-column:40 |
| 1151 | fill-column:79 |
| 1152 | End: |
| 1153 | */ |