| 1 | |
| 2 | #include <stdio.h> |
| 3 | #include <errno.h> |
| 4 | #include <sys/types.h> |
| 5 | #include <sys/socket.h> |
| 6 | #include <stddef.h> |
| 7 | #include <stdlib.h> |
| 8 | #include <time.h> |
| 9 | #include <unistd.h> |
| 10 | #include <string.h> |
| 11 | #include <sys/wait.h> |
| 12 | #include <pcre.h> |
| 13 | #include <assert.h> |
| 14 | |
| 15 | #include "client.h" |
| 16 | #include "mem.h" |
| 17 | #include "vector.h" |
| 18 | #include "sink.h" |
| 19 | #include "server-cgi.h" |
| 20 | #include "log.h" |
| 21 | #include "configuration.h" |
| 22 | #include "table.h" |
| 23 | #include "queue.h" |
| 24 | #include "plugin.h" |
| 25 | #include "split.h" |
| 26 | #include "wstat.h" |
| 27 | #include "kvp.h" |
| 28 | #include "syscalls.h" |
| 29 | #include "printf.h" |
| 30 | #include "regsub.h" |
| 31 | #include "defs.h" |
| 32 | #include "trackname.h" |
| 33 | #include "charset.h" |
| 34 | #include "dcgi.h" |
| 35 | #include "url.h" |
| 36 | #include "mime.h" |
| 37 | #include "sendmail.h" |
| 38 | #include "base64.h" |
| 39 | |
| 40 | struct entry { |
| 41 | const char *path; |
| 42 | const char *sort; |
| 43 | const char *display; |
| 44 | }; |
| 45 | |
| 46 | static int compare_entry(const void *a, const void *b) { |
| 47 | const struct entry *ea = a, *eb = b; |
| 48 | |
| 49 | return compare_tracks(ea->sort, eb->sort, |
| 50 | ea->display, eb->display, |
| 51 | ea->path, eb->path); |
| 52 | } |
| 53 | |
| 54 | static const char *front_url(void) { |
| 55 | char *url; |
| 56 | const char *mgmt; |
| 57 | |
| 58 | /* preserve management interface visibility */ |
| 59 | if((mgmt = cgi_get("mgmt")) && !strcmp(mgmt, "true")) { |
| 60 | byte_xasprintf(&url, "%s?mgmt=true", config->url); |
| 61 | return url; |
| 62 | } |
| 63 | return config->url; |
| 64 | } |
| 65 | |
| 66 | static void redirect(struct sink *output) { |
| 67 | const char *back; |
| 68 | |
| 69 | back = cgi_get("back"); |
| 70 | cgi_header(output, "Location", back && *back ? back : front_url()); |
| 71 | header_cookie(output); |
| 72 | cgi_body(output); |
| 73 | } |
| 74 | |
| 75 | static void expand_template(dcgi_state *ds, cgi_sink *output, |
| 76 | const char *action) { |
| 77 | cgi_header(output->sink, "Content-Type", "text/html"); |
| 78 | header_cookie(output->sink); |
| 79 | cgi_body(output->sink); |
| 80 | expand(output, action, ds); |
| 81 | } |
| 82 | |
| 83 | /* actions ********************************************************************/ |
| 84 | |
| 85 | static void act_disable(cgi_sink *output, |
| 86 | dcgi_state *ds) { |
| 87 | if(ds->g->client) |
| 88 | disorder_disable(ds->g->client); |
| 89 | redirect(output->sink); |
| 90 | } |
| 91 | |
| 92 | static void act_enable(cgi_sink *output, |
| 93 | dcgi_state *ds) { |
| 94 | if(ds->g->client) |
| 95 | disorder_enable(ds->g->client); |
| 96 | redirect(output->sink); |
| 97 | } |
| 98 | |
| 99 | static void act_random_disable(cgi_sink *output, |
| 100 | dcgi_state *ds) { |
| 101 | if(ds->g->client) |
| 102 | disorder_random_disable(ds->g->client); |
| 103 | redirect(output->sink); |
| 104 | } |
| 105 | |
| 106 | static void act_random_enable(cgi_sink *output, |
| 107 | dcgi_state *ds) { |
| 108 | if(ds->g->client) |
| 109 | disorder_random_enable(ds->g->client); |
| 110 | redirect(output->sink); |
| 111 | } |
| 112 | |
| 113 | static void act_remove(cgi_sink *output, |
| 114 | dcgi_state *ds) { |
| 115 | const char *id; |
| 116 | |
| 117 | if(!(id = cgi_get("id"))) fatal(0, "missing id argument"); |
| 118 | if(ds->g->client) |
| 119 | disorder_remove(ds->g->client, id); |
| 120 | redirect(output->sink); |
| 121 | } |
| 122 | |
| 123 | static void act_move(cgi_sink *output, |
| 124 | dcgi_state *ds) { |
| 125 | const char *id, *delta; |
| 126 | |
| 127 | if(!(id = cgi_get("id"))) fatal(0, "missing id argument"); |
| 128 | if(!(delta = cgi_get("delta"))) fatal(0, "missing delta argument"); |
| 129 | if(ds->g->client) |
| 130 | disorder_move(ds->g->client, id, atoi(delta)); |
| 131 | redirect(output->sink); |
| 132 | } |
| 133 | |
| 134 | static void act_scratch(cgi_sink *output, |
| 135 | dcgi_state *ds) { |
| 136 | if(ds->g->client) |
| 137 | disorder_scratch(ds->g->client, cgi_get("id")); |
| 138 | redirect(output->sink); |
| 139 | } |
| 140 | |
| 141 | static void act_play(cgi_sink *output, |
| 142 | dcgi_state *ds) { |
| 143 | const char *track, *dir; |
| 144 | char **tracks; |
| 145 | int ntracks, n; |
| 146 | struct entry *e; |
| 147 | |
| 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; |
| 152 | if(ntracks) { |
| 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"); |
| 158 | } |
| 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); |
| 162 | } |
| 163 | } |
| 164 | /* XXX error handling */ |
| 165 | redirect(output->sink); |
| 166 | } |
| 167 | |
| 168 | static int clamp(int n, int min, int max) { |
| 169 | if(n < min) |
| 170 | return min; |
| 171 | if(n > max) |
| 172 | return max; |
| 173 | return n; |
| 174 | } |
| 175 | |
| 176 | static const char *volume_url(void) { |
| 177 | char *url; |
| 178 | |
| 179 | byte_xasprintf(&url, "%s?action=volume", config->url); |
| 180 | return url; |
| 181 | } |
| 182 | |
| 183 | static void act_volume(cgi_sink *output, dcgi_state *ds) { |
| 184 | const char *l, *r, *d, *back; |
| 185 | int nd, changed = 0;; |
| 186 | |
| 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)); |
| 193 | changed = 1; |
| 194 | } else if((l = cgi_get("left")) && (r = cgi_get("right"))) { |
| 195 | disorder_set_volume(ds->g->client, atoi(l), atoi(r)); |
| 196 | changed = 1; |
| 197 | } |
| 198 | if(changed) { |
| 199 | /* redirect back to ourselves (but without the volume-changing bits in the |
| 200 | * URL) */ |
| 201 | cgi_header(output->sink, "Location", |
| 202 | (back = cgi_get("back")) ? back : volume_url()); |
| 203 | header_cookie(output->sink); |
| 204 | cgi_body(output->sink); |
| 205 | } else { |
| 206 | cgi_header(output->sink, "Content-Type", "text/html"); |
| 207 | header_cookie(output->sink); |
| 208 | cgi_body(output->sink); |
| 209 | expand(output, "volume", ds); |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | static void act_prefs_errors(const char *msg, |
| 214 | void attribute((unused)) *u) { |
| 215 | fatal(0, "error splitting parts list: %s", msg); |
| 216 | } |
| 217 | |
| 218 | static const char *numbered_arg(const char *argname, int numfile) { |
| 219 | char *fullname; |
| 220 | |
| 221 | byte_xasprintf(&fullname, "%d_%s", numfile, argname); |
| 222 | return cgi_get(fullname); |
| 223 | } |
| 224 | |
| 225 | static void process_prefs(dcgi_state *ds, int numfile) { |
| 226 | const char *file, *name, *value, *part, *parts, *current, *context; |
| 227 | char **partslist; |
| 228 | |
| 229 | if(!(file = numbered_arg("file", numfile))) |
| 230 | /* The first file doesn't need numbering. */ |
| 231 | if(numfile > 0 || !(file = cgi_get("file"))) |
| 232 | return; |
| 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))) |
| 240 | continue; |
| 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)) |
| 247 | continue; |
| 248 | byte_xasprintf((char **)&name, "trackname_%s_%s", context, part); |
| 249 | disorder_set(ds->g->client, file, name, value); |
| 250 | } |
| 251 | if((value = numbered_arg("random", numfile))) |
| 252 | disorder_unset(ds->g->client, file, "pick_at_random"); |
| 253 | else |
| 254 | disorder_set(ds->g->client, file, "pick_at_random", "0"); |
| 255 | if((value = numbered_arg("tags", numfile))) { |
| 256 | if(!*value) |
| 257 | disorder_unset(ds->g->client, file, "tags"); |
| 258 | else |
| 259 | disorder_set(ds->g->client, file, "tags", value); |
| 260 | } |
| 261 | if((value = numbered_arg("weight", numfile))) { |
| 262 | if(!*value || !strcmp(value, "90000")) |
| 263 | disorder_unset(ds->g->client, file, "weight"); |
| 264 | else |
| 265 | disorder_set(ds->g->client, file, "weight", value); |
| 266 | } |
| 267 | } else if((name = cgi_get("name"))) { |
| 268 | /* Raw preferences. Not well supported in the templates at the moment. */ |
| 269 | value = cgi_get("value"); |
| 270 | if(value) |
| 271 | disorder_set(ds->g->client, file, name, value); |
| 272 | else |
| 273 | disorder_unset(ds->g->client, file, name); |
| 274 | } |
| 275 | } |
| 276 | |
| 277 | static void act_prefs(cgi_sink *output, dcgi_state *ds) { |
| 278 | const char *files; |
| 279 | int nfiles, numfile; |
| 280 | |
| 281 | if((files = cgi_get("files"))) nfiles = atoi(files); |
| 282 | else nfiles = 1; |
| 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); |
| 289 | } |
| 290 | |
| 291 | static void act_pause(cgi_sink *output, |
| 292 | dcgi_state *ds) { |
| 293 | if(ds->g->client) |
| 294 | disorder_pause(ds->g->client); |
| 295 | redirect(output->sink); |
| 296 | } |
| 297 | |
| 298 | static void act_resume(cgi_sink *output, |
| 299 | dcgi_state *ds) { |
| 300 | if(ds->g->client) |
| 301 | disorder_resume(ds->g->client); |
| 302 | redirect(output->sink); |
| 303 | } |
| 304 | |
| 305 | static void act_login(cgi_sink *output, |
| 306 | dcgi_state *ds) { |
| 307 | const char *username, *password, *back; |
| 308 | disorder_client *c; |
| 309 | |
| 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"); |
| 316 | return; |
| 317 | } |
| 318 | /* We'll need a new connection as we are going to stop being guest */ |
| 319 | c = disorder_new(0); |
| 320 | if(disorder_connect_user(c, username, password)) { |
| 321 | cgi_set_option("error", "loginfailed"); |
| 322 | expand_template(ds, output, "login"); |
| 323 | return; |
| 324 | } |
| 325 | if(disorder_make_cookie(c, &login_cookie)) { |
| 326 | cgi_set_option("error", "cookiefailed"); |
| 327 | expand_template(ds, output, "login"); |
| 328 | return; |
| 329 | } |
| 330 | /* Use the new connection henceforth */ |
| 331 | ds->g->client = c; |
| 332 | ds->g->flags = 0; |
| 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); |
| 339 | else |
| 340 | /* Stick to the login page */ |
| 341 | expand_template(ds, output, "login"); |
| 342 | } |
| 343 | |
| 344 | static void act_logout(cgi_sink *output, |
| 345 | dcgi_state *ds) { |
| 346 | disorder_revoke(ds->g->client); |
| 347 | login_cookie = 0; |
| 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"); |
| 353 | } |
| 354 | |
| 355 | static void act_register(cgi_sink *output, |
| 356 | dcgi_state *ds) { |
| 357 | const char *username, *password, *password2, *email; |
| 358 | char *confirm, *content_type; |
| 359 | const char *text, *encoding, *charset; |
| 360 | |
| 361 | username = cgi_get("username"); |
| 362 | password = cgi_get("password1"); |
| 363 | password2 = cgi_get("password2"); |
| 364 | email = cgi_get("email"); |
| 365 | |
| 366 | if(!username || !*username) { |
| 367 | cgi_set_option("error", "nousername"); |
| 368 | expand_template(ds, output, "login"); |
| 369 | return; |
| 370 | } |
| 371 | if(!password || !*password) { |
| 372 | cgi_set_option("error", "nopassword"); |
| 373 | expand_template(ds, output, "login"); |
| 374 | return; |
| 375 | } |
| 376 | if(!password2 || !*password2 || strcmp(password, password2)) { |
| 377 | cgi_set_option("error", "passwordmismatch"); |
| 378 | expand_template(ds, output, "login"); |
| 379 | return; |
| 380 | } |
| 381 | if(!email || !*email) { |
| 382 | cgi_set_option("error", "noemail"); |
| 383 | expand_template(ds, output, "login"); |
| 384 | return; |
| 385 | } |
| 386 | /* We could well do better address validation but for now we'll just do the |
| 387 | * minimum */ |
| 388 | if(!strchr(email, '@')) { |
| 389 | cgi_set_option("error", "bademail"); |
| 390 | expand_template(ds, output, "login"); |
| 391 | return; |
| 392 | } |
| 393 | if(disorder_register(ds->g->client, username, password, email, &confirm)) { |
| 394 | cgi_set_option("error", "cannotregister"); |
| 395 | expand_template(ds, output, "login"); |
| 396 | return; |
| 397 | } |
| 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" |
| 402 | "\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"); |
| 413 | } |
| 414 | |
| 415 | static void act_confirm(cgi_sink *output, |
| 416 | dcgi_state *ds) { |
| 417 | const char *confirmation; |
| 418 | |
| 419 | if(!(confirmation = cgi_get("c"))) { |
| 420 | cgi_set_option("error", "noconfirm"); |
| 421 | expand_template(ds, output, "login"); |
| 422 | } |
| 423 | /* Confirm our registration */ |
| 424 | if(disorder_confirm(ds->g->client, confirmation)) { |
| 425 | cgi_set_option("error", "badconfirm"); |
| 426 | expand_template(ds, output, "login"); |
| 427 | } |
| 428 | /* Get a cookie */ |
| 429 | if(disorder_make_cookie(ds->g->client, &login_cookie)) { |
| 430 | cgi_set_option("error", "cookiefailed"); |
| 431 | expand_template(ds, output, "login"); |
| 432 | return; |
| 433 | } |
| 434 | /* Discard any cached data JIC */ |
| 435 | ds->g->flags = 0; |
| 436 | /* We have a new cookie */ |
| 437 | header_cookie(output->sink); |
| 438 | cgi_set_option("status", "confirmed"); |
| 439 | expand_template(ds, output, "login"); |
| 440 | } |
| 441 | |
| 442 | static void act_edituser(cgi_sink *output, |
| 443 | dcgi_state *ds) { |
| 444 | const char *email = cgi_get("email"), *password = cgi_get("changepassword1"); |
| 445 | const char *password2 = cgi_get("changepassword2"); |
| 446 | int newpassword = 0; |
| 447 | disorder_client *c; |
| 448 | |
| 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"); |
| 453 | return; |
| 454 | } |
| 455 | } else |
| 456 | password = password2 = 0; |
| 457 | |
| 458 | if(email) { |
| 459 | if(disorder_edituser(ds->g->client, disorder_user(ds->g->client), |
| 460 | "email", email)) { |
| 461 | cgi_set_option("error", "badedit"); |
| 462 | expand_template(ds, output, "login"); |
| 463 | return; |
| 464 | } |
| 465 | } |
| 466 | if(password) { |
| 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"); |
| 471 | return; |
| 472 | } |
| 473 | newpassword = 1; |
| 474 | } |
| 475 | if(newpassword) { |
| 476 | login_cookie = 0; /* it'll be invalid now */ |
| 477 | /* This is a bit duplicative of act_login() */ |
| 478 | c = disorder_new(0); |
| 479 | if(disorder_connect_user(c, disorder_user(ds->g->client), password)) { |
| 480 | cgi_set_option("error", "loginfailed"); |
| 481 | expand_template(ds, output, "login"); |
| 482 | return; |
| 483 | } |
| 484 | if(disorder_make_cookie(c, &login_cookie)) { |
| 485 | cgi_set_option("error", "cookiefailed"); |
| 486 | expand_template(ds, output, "login"); |
| 487 | return; |
| 488 | } |
| 489 | /* Use the new connection henceforth */ |
| 490 | ds->g->client = c; |
| 491 | ds->g->flags = 0; |
| 492 | /* We have a new cookie */ |
| 493 | header_cookie(output->sink); |
| 494 | } |
| 495 | cgi_set_option("status", "edited"); |
| 496 | expand_template(ds, output, "login"); |
| 497 | } |
| 498 | |
| 499 | static void act_reminder(cgi_sink *output, |
| 500 | dcgi_state *ds) { |
| 501 | const char *const username = cgi_get("username"); |
| 502 | |
| 503 | if(!username || !*username) { |
| 504 | cgi_set_option("error", "nousername"); |
| 505 | expand_template(ds, output, "login"); |
| 506 | return; |
| 507 | } |
| 508 | if(disorder_reminder(ds->g->client, username)) { |
| 509 | cgi_set_option("error", "reminderfailed"); |
| 510 | expand_template(ds, output, "login"); |
| 511 | return; |
| 512 | } |
| 513 | cgi_set_option("status", "reminded"); |
| 514 | expand_template(ds, output, "login"); |
| 515 | } |
| 516 | |
| 517 | /* expansions *****************************************************************/ |
| 518 | |
| 519 | static void exp_label(int attribute((unused)) nargs, |
| 520 | char **args, |
| 521 | cgi_sink *output, |
| 522 | void attribute((unused)) *u) { |
| 523 | cgi_output(output, "%s", cgi_label(args[0])); |
| 524 | } |
| 525 | |
| 526 | struct trackinfo_state { |
| 527 | dcgi_state *ds; |
| 528 | const struct queue_entry *q; |
| 529 | long length; |
| 530 | time_t when; |
| 531 | }; |
| 532 | |
| 533 | struct result { |
| 534 | char *track; |
| 535 | const char *sort; |
| 536 | }; |
| 537 | |
| 538 | static int compare_result(const void *a, const void *b) { |
| 539 | const struct result *ra = a, *rb = b; |
| 540 | int c; |
| 541 | |
| 542 | if(!(c = strcmp(ra->sort, rb->sort))) |
| 543 | c = strcmp(ra->track, rb->track); |
| 544 | return c; |
| 545 | } |
| 546 | |
| 547 | static void exp_search(int nargs, |
| 548 | char **args, |
| 549 | cgi_sink *output, |
| 550 | void *u) { |
| 551 | dcgi_state *ds = u, substate; |
| 552 | char **tracks; |
| 553 | const char *q, *context, *part, *template; |
| 554 | int ntracks, n, m; |
| 555 | struct result *r; |
| 556 | |
| 557 | switch(nargs) { |
| 558 | case 2: |
| 559 | part = args[0]; |
| 560 | context = "sort"; |
| 561 | template = args[1]; |
| 562 | break; |
| 563 | case 3: |
| 564 | part = args[0]; |
| 565 | context = args[1]; |
| 566 | template = args[2]; |
| 567 | break; |
| 568 | default: |
| 569 | assert(!"should never happen"); |
| 570 | part = context = template = 0; /* quieten compiler */ |
| 571 | } |
| 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; |
| 576 | if(!ntracks) return; |
| 577 | } else { |
| 578 | tracks = ds->tracks; |
| 579 | ntracks = ds->ntracks; |
| 580 | } |
| 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"); |
| 589 | } |
| 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); |
| 595 | substate.g = ds->g; |
| 596 | substate.first = 1; |
| 597 | n = 0; |
| 598 | while(n < ntracks) { |
| 599 | substate.tracks = tracks; |
| 600 | substate.ntracks = 0; |
| 601 | m = n; |
| 602 | while(m < ntracks |
| 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); |
| 607 | substate.index++; |
| 608 | substate.first = 0; |
| 609 | n = m; |
| 610 | } |
| 611 | assert(substate.last != 0); |
| 612 | } |
| 613 | |
| 614 | static void exp_stats(int attribute((unused)) nargs, |
| 615 | char attribute((unused)) **args, |
| 616 | cgi_sink *output, |
| 617 | void *u) { |
| 618 | dcgi_state *ds = u; |
| 619 | char **v; |
| 620 | |
| 621 | cgi_opentag(output->sink, "pre", "class", "stats", (char *)0); |
| 622 | if(!disorder_stats(ds->g->client, &v, 0)) { |
| 623 | while(*v) |
| 624 | cgi_output(output, "%s\n", *v++); |
| 625 | } |
| 626 | cgi_closetag(output->sink, "pre"); |
| 627 | } |
| 628 | |
| 629 | static char *expandarg(const char *arg, dcgi_state *ds) { |
| 630 | struct dynstr d; |
| 631 | cgi_sink output; |
| 632 | |
| 633 | dynstr_init(&d); |
| 634 | output.quote = 0; |
| 635 | output.sink = sink_dynstr(&d); |
| 636 | expandstring(&output, arg, ds); |
| 637 | dynstr_terminate(&d); |
| 638 | return d.vec; |
| 639 | } |
| 640 | |
| 641 | static void exp_isfiles(int attribute((unused)) nargs, |
| 642 | char attribute((unused)) **args, |
| 643 | cgi_sink *output, |
| 644 | void *u) { |
| 645 | dcgi_state *ds = u; |
| 646 | |
| 647 | lookups(ds, DC_FILES); |
| 648 | sink_printf(output->sink, "%s", bool2str(!!ds->g->nfiles)); |
| 649 | } |
| 650 | |
| 651 | static void exp_isdirectories(int attribute((unused)) nargs, |
| 652 | char attribute((unused)) **args, |
| 653 | cgi_sink *output, |
| 654 | void *u) { |
| 655 | dcgi_state *ds = u; |
| 656 | |
| 657 | lookups(ds, DC_DIRS); |
| 658 | sink_printf(output->sink, "%s", bool2str(!!ds->g->ndirs)); |
| 659 | } |
| 660 | |
| 661 | static void exp_choose(int attribute((unused)) nargs, |
| 662 | char **args, |
| 663 | cgi_sink *output, |
| 664 | void *u) { |
| 665 | dcgi_state *ds = u; |
| 666 | dcgi_state substate; |
| 667 | int nfiles, n; |
| 668 | char **files; |
| 669 | struct entry *e; |
| 670 | const char *type, *what = expandarg(args[0], ds); |
| 671 | |
| 672 | if(!strcmp(what, "files")) { |
| 673 | lookups(ds, DC_FILES); |
| 674 | files = ds->g->files; |
| 675 | nfiles = ds->g->nfiles; |
| 676 | type = "track"; |
| 677 | } else if(!strcmp(what, "directories")) { |
| 678 | lookups(ds, DC_DIRS); |
| 679 | files = ds->g->dirs; |
| 680 | nfiles = ds->g->ndirs; |
| 681 | type = "dir"; |
| 682 | } else { |
| 683 | error(0, "unknown @choose@ argument '%s'", what); |
| 684 | return; |
| 685 | } |
| 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"); |
| 691 | } |
| 692 | qsort(e, nfiles, sizeof (struct entry), compare_entry); |
| 693 | memset(&substate, 0, sizeof substate); |
| 694 | substate.g = ds->g; |
| 695 | substate.first = 1; |
| 696 | for(n = 0; n < nfiles; ++n) { |
| 697 | substate.last = (n == nfiles - 1); |
| 698 | substate.index = n; |
| 699 | substate.entry = &e[n]; |
| 700 | expandstring(output, args[1], &substate); |
| 701 | substate.first = 0; |
| 702 | } |
| 703 | } |
| 704 | |
| 705 | static void exp_file(int attribute((unused)) nargs, |
| 706 | char attribute((unused)) **args, |
| 707 | cgi_sink *output, |
| 708 | void *u) { |
| 709 | dcgi_state *ds = u; |
| 710 | |
| 711 | if(ds->entry) |
| 712 | cgi_output(output, "%s", ds->entry->path); |
| 713 | else if(ds->track) |
| 714 | cgi_output(output, "%s", ds->track->track); |
| 715 | else if(ds->tracks) |
| 716 | cgi_output(output, "%s", ds->tracks[0]); |
| 717 | } |
| 718 | |
| 719 | static void exp_navigate(int attribute((unused)) nargs, |
| 720 | char **args, |
| 721 | cgi_sink *output, |
| 722 | void *u) { |
| 723 | dcgi_state *ds = u; |
| 724 | dcgi_state substate; |
| 725 | const char *path = expandarg(args[0], ds); |
| 726 | const char *ptr; |
| 727 | int dirlen; |
| 728 | |
| 729 | if(*path) { |
| 730 | memset(&substate, 0, sizeof substate); |
| 731 | substate.g = ds->g; |
| 732 | ptr = path + 1; /* skip root */ |
| 733 | dirlen = 0; |
| 734 | substate.nav_path = path; |
| 735 | substate.first = 1; |
| 736 | while(*ptr) { |
| 737 | while(*ptr && *ptr != '/') |
| 738 | ++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; |
| 744 | if(*ptr) ++ptr; |
| 745 | substate.first = 0; |
| 746 | } |
| 747 | } |
| 748 | } |
| 749 | |
| 750 | static void exp_fullname(int attribute((unused)) nargs, |
| 751 | char attribute((unused)) **args, |
| 752 | cgi_sink *output, |
| 753 | void *u) { |
| 754 | dcgi_state *ds = u; |
| 755 | cgi_output(output, "%.*s", ds->nav_len, ds->nav_path); |
| 756 | } |
| 757 | |
| 758 | static void exp_files(int attribute((unused)) nargs, |
| 759 | char **args, |
| 760 | cgi_sink *output, |
| 761 | void *u) { |
| 762 | dcgi_state *ds = u; |
| 763 | dcgi_state substate; |
| 764 | const char *nfiles_arg, *directory; |
| 765 | int nfiles, numfile; |
| 766 | struct kvp *k; |
| 767 | |
| 768 | memset(&substate, 0, sizeof substate); |
| 769 | substate.g = ds->g; |
| 770 | if((directory = cgi_get("directory"))) { |
| 771 | /* Prefs for whole directory. */ |
| 772 | lookups(ds, DC_FILES); |
| 773 | /* Synthesize args for the file list. */ |
| 774 | nfiles = ds->g->nfiles; |
| 775 | for(numfile = 0; numfile < nfiles; ++numfile) { |
| 776 | k = xmalloc(sizeof *k); |
| 777 | byte_xasprintf((char **)&k->name, "%d_file", numfile); |
| 778 | k->value = ds->g->files[numfile]; |
| 779 | k->next = cgi_args; |
| 780 | cgi_args = k; |
| 781 | } |
| 782 | } else { |
| 783 | /* Args already present. */ |
| 784 | if((nfiles_arg = cgi_get("files"))) nfiles = atoi(nfiles_arg); |
| 785 | else nfiles = 1; |
| 786 | } |
| 787 | for(numfile = 0; numfile < nfiles; ++numfile) { |
| 788 | substate.index = numfile; |
| 789 | expandstring(output, args[0], &substate); |
| 790 | } |
| 791 | } |
| 792 | |
| 793 | static void exp_nfiles(int attribute((unused)) nargs, |
| 794 | char attribute((unused)) **args, |
| 795 | cgi_sink *output, |
| 796 | void *u) { |
| 797 | dcgi_state *ds = u; |
| 798 | const char *files_arg; |
| 799 | |
| 800 | if(cgi_get("directory")) { |
| 801 | lookups(ds, DC_FILES); |
| 802 | cgi_output(output, "%d", ds->g->nfiles); |
| 803 | } else if((files_arg = cgi_get("files"))) |
| 804 | cgi_output(output, "%s", files_arg); |
| 805 | else |
| 806 | cgi_output(output, "1"); |
| 807 | } |
| 808 | |
| 809 | /* |
| 810 | Local Variables: |
| 811 | c-basic-offset:2 |
| 812 | comment-column:40 |
| 813 | fill-column:79 |
| 814 | End: |
| 815 | */ |