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annotate src/c/urweb.c @ 739:4bb7e1c0550a

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author Adam Chlipala <adamc@hcoop.net>
date Sat, 25 Apr 2009 14:35:49 -0400
parents d049d31a1966
children b302b6e35f93
rev   line source
adamc@436 1 #define _XOPEN_SOURCE
adamc@436 2
adamc@117 3 #include <stdlib.h>
adamc@102 4 #include <stdio.h>
adamc@117 5 #include <string.h>
adamc@457 6 #include <strings.h>
adamc@106 7 #include <ctype.h>
adamc@167 8 #include <setjmp.h>
adamc@167 9 #include <stdarg.h>
adamc@682 10 #include <assert.h>
adamc@102 11
adamc@667 12 #include <pthread.h>
adamc@667 13
adamc@102 14 #include "types.h"
adamc@102 15
adamc@311 16 uw_unit uw_unit_v = {};
adamc@102 17
adamc@667 18
adamc@667 19 // Socket extras
adamc@667 20
adamc@667 21 int uw_really_send(int sock, const void *buf, size_t len) {
adamc@667 22 while (len > 0) {
adamc@667 23 size_t n = send(sock, buf, len, 0);
adamc@667 24
adamc@667 25 if (n < 0)
adamc@667 26 return n;
adamc@667 27
adamc@667 28 buf += n;
adamc@667 29 len -= n;
adamc@667 30 }
adamc@667 31
adamc@667 32 return 0;
adamc@667 33 }
adamc@667 34
adamc@667 35
adamc@667 36 // Buffers
adamc@667 37
adamc@667 38 typedef struct {
adamc@667 39 char *start, *front, *back;
adamc@667 40 } buf;
adamc@667 41
adamc@667 42 static void buf_init(buf *b, size_t s) {
adamc@667 43 b->front = b->start = malloc(s);
adamc@667 44 b->back = b->front + s;
adamc@667 45 }
adamc@667 46
adamc@667 47 static void buf_free(buf *b) {
adamc@667 48 free(b->start);
adamc@667 49 }
adamc@667 50
adamc@667 51 static void buf_reset(buf *b) {
adamc@667 52 b->front = b->start;
adamc@667 53 }
adamc@667 54
adamc@667 55 static void buf_check(buf *b, size_t extra) {
adamc@667 56 if (b->back - b->front < extra) {
adamc@667 57 size_t desired = b->front - b->start + extra, next;
adamc@667 58 char *new_heap;
adamc@667 59
adamc@667 60 next = b->back - b->start;
adamc@667 61 if (next == 0)
adamc@667 62 next = 1;
adamc@667 63 for (; next < desired; next *= 2);
adamc@667 64
adamc@667 65 new_heap = realloc(b->start, next);
adamc@667 66 b->front = new_heap + (b->front - b->start);
adamc@667 67 b->back = new_heap + next;
adamc@667 68 b->start = new_heap;
adamc@667 69 }
adamc@667 70 }
adamc@667 71
adamc@667 72 static size_t buf_used(buf *b) {
adamc@667 73 return b->front - b->start;
adamc@667 74 }
adamc@667 75
adamc@667 76 static size_t buf_avail(buf *b) {
adamc@667 77 return b->back - b->start;
adamc@667 78 }
adamc@667 79
adamc@668 80 static void buf_append(buf *b, const char *s, size_t len) {
adamc@672 81 buf_check(b, len+1);
adamc@668 82 memcpy(b->front, s, len);
adamc@668 83 b->front += len;
adamc@672 84 *b->front = 0;
adamc@668 85 }
adamc@667 86
adamc@668 87
adamc@672 88 // Persistent state types
adamc@667 89
adamc@667 90 typedef enum { UNUSED, USED } usage;
adamc@667 91
adamc@667 92 typedef struct client {
adamc@682 93 unsigned id;
adamc@667 94 usage mode;
adamc@682 95 int pass;
adamc@682 96 struct client *next;
adamc@689 97 pthread_mutex_t lock, pull_lock;
adamc@682 98 buf msgs;
adamc@682 99 int sock;
adamc@682 100 time_t last_contact;
adamc@682 101 unsigned n_channels;
adamc@685 102 unsigned refcount;
adamc@667 103 } client;
adamc@667 104
adamc@672 105
adamc@672 106 // Persistent client state
adamc@672 107
adamc@682 108 static client **clients, *clients_free, *clients_used;
adamc@682 109 static unsigned n_clients;
adamc@667 110
adamc@667 111 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@667 112
adamc@682 113 static client *new_client() {
adamc@667 114 client *c;
adamc@667 115
adamc@667 116 pthread_mutex_lock(&clients_mutex);
adamc@667 117
adamc@667 118 if (clients_free) {
adamc@667 119 c = clients_free;
adamc@682 120 clients_free = clients_free->next;
adamc@667 121 }
adamc@667 122 else {
adamc@667 123 ++n_clients;
adamc@667 124 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667 125 c = malloc(sizeof(client));
adamc@667 126 c->id = n_clients-1;
adamc@682 127 pthread_mutex_init(&c->lock, NULL);
adamc@689 128 pthread_mutex_init(&c->pull_lock, NULL);
adamc@682 129 buf_init(&c->msgs, 0);
adamc@667 130 clients[n_clients-1] = c;
adamc@667 131 }
adamc@667 132
adamc@682 133 pthread_mutex_lock(&c->lock);
adamc@667 134 c->mode = USED;
adamc@682 135 c->pass = rand();
adamc@682 136 c->sock = -1;
adamc@682 137 c->last_contact = time(NULL);
adamc@682 138 buf_reset(&c->msgs);
adamc@682 139 c->n_channels = 0;
adamc@685 140 c->refcount = 0;
adamc@682 141 pthread_mutex_unlock(&c->lock);
adamc@682 142
adamc@682 143 c->next = clients_used;
adamc@682 144 clients_used = c;
adamc@667 145
adamc@667 146 pthread_mutex_unlock(&clients_mutex);
adamc@667 147
adamc@667 148 return c;
adamc@667 149 }
adamc@667 150
adamc@685 151 static void use_client(client *c) {
adamc@685 152 pthread_mutex_lock(&c->lock);
adamc@685 153 ++c->refcount;
adamc@685 154 pthread_mutex_unlock(&c->lock);
adamc@689 155 pthread_mutex_lock(&c->pull_lock);
adamc@685 156 }
adamc@685 157
adamc@685 158 static void release_client(client *c) {
adamc@689 159 pthread_mutex_unlock(&c->pull_lock);
adamc@685 160 pthread_mutex_lock(&c->lock);
adamc@685 161 --c->refcount;
adamc@685 162 pthread_mutex_unlock(&c->lock);
adamc@689 163
adamc@685 164 }
adamc@685 165
adamc@667 166 static const char begin_msgs[] = "HTTP/1.1 200 OK\r\nContent-type: text/plain\r\n\r\n";
adamc@667 167
adamc@682 168 static client *find_client(unsigned id) {
adamc@667 169 client *c;
adamc@667 170
adamc@667 171 pthread_mutex_lock(&clients_mutex);
adamc@667 172
adamc@667 173 if (id >= n_clients) {
adamc@667 174 pthread_mutex_unlock(&clients_mutex);
adamc@668 175 return NULL;
adamc@667 176 }
adamc@667 177
adamc@667 178 c = clients[id];
adamc@667 179
adamc@668 180 pthread_mutex_unlock(&clients_mutex);
adamc@668 181 return c;
adamc@668 182 }
adamc@668 183
adamc@682 184 void uw_client_connect(unsigned id, int pass, int sock) {
adamc@682 185 client *c = find_client(id);
adamc@668 186
adamc@668 187 if (c == NULL) {
adamc@667 188 close(sock);
adamc@682 189 fprintf(stderr, "Out-of-bounds client request (%u)\n", id);
adamc@667 190 return;
adamc@667 191 }
adamc@667 192
adamc@682 193 pthread_mutex_lock(&c->lock);
adamc@671 194
adamc@682 195 if (c->mode != USED) {
adamc@682 196 pthread_mutex_unlock(&c->lock);
adamc@667 197 close(sock);
adamc@682 198 fprintf(stderr, "Client request for unused slot (%u)\n", id);
adamc@667 199 return;
adamc@667 200 }
adamc@667 201
adamc@682 202 if (pass != c->pass) {
adamc@682 203 pthread_mutex_unlock(&c->lock);
adamc@682 204 close(sock);
adamc@682 205 fprintf(stderr, "Wrong client password (%u, %d)\n", id, pass);
adamc@682 206 return;
adamc@667 207 }
adamc@667 208
adamc@682 209 if (c->sock != -1) {
adamc@682 210 close(c->sock);
adamc@682 211 c->sock = -1;
adamc@682 212 }
adamc@667 213
adamc@682 214 c->last_contact = time(NULL);
adamc@682 215
adamc@682 216 if (buf_used(&c->msgs) > 0) {
adamc@667 217 uw_really_send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@682 218 uw_really_send(sock, c->msgs.start, buf_used(&c->msgs));
adamc@682 219 buf_reset(&c->msgs);
adamc@667 220 close(sock);
adamc@667 221 }
adamc@668 222 else
adamc@682 223 c->sock = sock;
adamc@667 224
adamc@682 225 pthread_mutex_unlock(&c->lock);
adamc@667 226 }
adamc@667 227
adamc@682 228 static void free_client(client *c) {
adamc@683 229 printf("Freeing client %u\n", c->id);
adamc@667 230
adamc@682 231 c->mode = UNUSED;
adamc@682 232 c->pass = -1;
adamc@667 233
adamc@682 234 c->next = clients_free;
adamc@682 235 clients_free = c;
adamc@667 236 }
adamc@667 237
adamc@682 238 static uw_Basis_channel new_channel(client *c) {
adamc@682 239 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668 240 return ch;
adamc@668 241 }
adamc@668 242
adamc@685 243 static void client_send(client *c, buf *msg) {
adamc@685 244 pthread_mutex_lock(&c->lock);
adamc@671 245
adamc@682 246 if (c->sock != -1) {
adamc@682 247 uw_really_send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@682 248 uw_really_send(c->sock, msg->start, buf_used(msg));
adamc@682 249 close(c->sock);
adamc@682 250 c->sock = -1;
adamc@682 251 } else
adamc@682 252 buf_append(&c->msgs, msg->start, buf_used(msg));
adamc@671 253
adamc@685 254 pthread_mutex_unlock(&c->lock);
adamc@668 255 }
adamc@668 256
adamc@668 257
adamc@668 258 // Global entry points
adamc@668 259
adamc@668 260 void uw_global_init() {
adamc@668 261 srand(time(NULL) ^ getpid());
adamc@668 262
adamc@668 263 clients = malloc(0);
adamc@668 264 }
adamc@668 265
adamc@668 266
adamc@667 267 // Single-request state
adamc@667 268
adamc@167 269 #define ERROR_BUF_LEN 1024
adamc@167 270
adamc@323 271 typedef struct regions {
adamc@323 272 struct regions *next;
adamc@323 273 } regions;
adamc@323 274
adamc@425 275 typedef struct {
adamc@425 276 void (*func)(void*);
adamc@425 277 void *arg;
adamc@425 278 } cleanup;
adamc@425 279
adamc@671 280 typedef struct {
adamc@682 281 unsigned client;
adamc@671 282 buf msgs;
adamc@682 283 } delta;
adamc@671 284
adamc@737 285 typedef enum {
adamc@739 286 UNSET, NORMAL, FIL
adamc@737 287 } input_kind;
adamc@737 288
adamc@737 289 typedef struct {
adamc@737 290 input_kind kind;
adamc@737 291 union {
adamc@737 292 char *normal;
adamc@739 293 uw_Basis_file file;
adamc@737 294 } data;
adamc@737 295 } input;
adamc@737 296
adamc@311 297 struct uw_context {
adamc@458 298 char *headers, *headers_end;
adamc@457 299
adamc@666 300 buf outHeaders, page, heap, script;
adamc@737 301 input *inputs;
adamc@167 302
adamc@565 303 int source_count;
adamc@562 304
adamc@272 305 void *db;
adamc@272 306
adamc@167 307 jmp_buf jmp_buf;
adamc@167 308
adamc@323 309 regions *regions;
adamc@323 310
adamc@425 311 cleanup *cleanup, *cleanup_front, *cleanup_back;
adamc@425 312
adamc@667 313 const char *script_header, *url_prefix;
adamc@643 314
adamc@736 315 int needs_push, needs_sig;
adamc@693 316
adamc@682 317 size_t n_deltas, used_deltas;
adamc@682 318 delta *deltas;
adamc@671 319
adamc@673 320 int timeout;
adamc@673 321
adamc@682 322 client *client;
adamc@682 323
adamc@167 324 char error_message[ERROR_BUF_LEN];
adamc@117 325 };
adamc@117 326
adamc@683 327 extern int uw_inputs_len, uw_timeout;
adamc@144 328
adamc@687 329 uw_context uw_init() {
adamc@311 330 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136 331
adamc@458 332 ctx->headers = ctx->headers_end = NULL;
adamc@457 333
adamc@687 334 buf_init(&ctx->outHeaders, 0);
adamc@687 335 buf_init(&ctx->page, 0);
adamc@687 336 buf_init(&ctx->heap, 0);
adamc@698 337 buf_init(&ctx->script, 1);
adamc@667 338 ctx->script.start[0] = 0;
adamc@136 339
adamc@737 340 ctx->inputs = calloc(uw_inputs_len, sizeof(input));
adamc@144 341
adamc@272 342 ctx->db = NULL;
adamc@272 343
adamc@323 344 ctx->regions = NULL;
adamc@323 345
adamc@425 346 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425 347
adamc@643 348 ctx->script_header = "";
adamc@667 349 ctx->url_prefix = "/";
adamc@693 350 ctx->needs_push = 0;
adamc@736 351 ctx->needs_sig = 0;
adamc@643 352
adamc@167 353 ctx->error_message[0] = 0;
adamc@167 354
adamc@565 355 ctx->source_count = 0;
adamc@562 356
adamc@682 357 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671 358 ctx->deltas = malloc(0);
adamc@671 359
adamc@673 360 ctx->timeout = uw_timeout;
adamc@673 361
adamc@700 362 ctx->client = NULL;
adamc@700 363
adamc@700 364 ctx->error_message[0] = 0;
adamc@700 365
adamc@117 366 return ctx;
adamc@106 367 }
adamc@106 368
adamc@311 369 void uw_set_db(uw_context ctx, void *db) {
adamc@272 370 ctx->db = db;
adamc@272 371 }
adamc@272 372
adamc@311 373 void *uw_get_db(uw_context ctx) {
adamc@272 374 return ctx->db;
adamc@272 375 }
adamc@272 376
adamc@311 377 void uw_free(uw_context ctx) {
adamc@671 378 size_t i;
adamc@671 379
adamc@666 380 buf_free(&ctx->outHeaders);
adamc@666 381 buf_free(&ctx->script);
adamc@666 382 buf_free(&ctx->page);
adamc@666 383 buf_free(&ctx->heap);
adamc@144 384 free(ctx->inputs);
adamc@425 385 free(ctx->cleanup);
adamc@671 386
adamc@682 387 for (i = 0; i < ctx->n_deltas; ++i)
adamc@671 388 buf_free(&ctx->deltas[i].msgs);
adamc@671 389
adamc@136 390 free(ctx);
adamc@136 391 }
adamc@136 392
adamc@562 393 void uw_reset_keep_error_message(uw_context ctx) {
adamc@666 394 buf_reset(&ctx->outHeaders);
adamc@666 395 buf_reset(&ctx->script);
adamc@667 396 ctx->script.start[0] = 0;
adamc@666 397 buf_reset(&ctx->page);
adamc@666 398 buf_reset(&ctx->heap);
adamc@323 399 ctx->regions = NULL;
adamc@425 400 ctx->cleanup_front = ctx->cleanup;
adamc@565 401 ctx->source_count = 0;
adamc@682 402 ctx->used_deltas = 0;
adamc@682 403 ctx->client = NULL;
adamc@167 404 }
adamc@167 405
adamc@562 406 void uw_reset_keep_request(uw_context ctx) {
adamc@562 407 uw_reset_keep_error_message(ctx);
adamc@562 408 ctx->error_message[0] = 0;
adamc@167 409 }
adamc@167 410
adamc@311 411 void uw_reset(uw_context ctx) {
adamc@311 412 uw_reset_keep_request(ctx);
adamc@737 413 memset(ctx->inputs, 0, uw_inputs_len * sizeof(input));
adamc@144 414 }
adamc@144 415
adamc@311 416 void uw_db_init(uw_context);
adamc@311 417 void uw_handle(uw_context, char *);
adamc@167 418
adamc@311 419 failure_kind uw_begin_init(uw_context ctx) {
adamc@272 420 int r = setjmp(ctx->jmp_buf);
adamc@272 421
adamc@272 422 if (r == 0)
adamc@311 423 uw_db_init(ctx);
adamc@272 424
adamc@272 425 return r;
adamc@272 426 }
adamc@272 427
adamc@458 428 void uw_set_headers(uw_context ctx, char *headers) {
adamc@458 429 char *s = headers, *s2;
adamc@458 430 ctx->headers = headers;
adamc@458 431
adamc@458 432 while (s2 = strchr(s, '\r')) {
adamc@458 433 s = s2;
adamc@458 434
adamc@458 435 if (s[1] == 0)
adamc@458 436 break;
adamc@458 437
adamc@458 438 *s = 0;
adamc@458 439 s += 2;
adamc@458 440 }
adamc@458 441
adamc@458 442 ctx->headers_end = s;
adamc@458 443 }
adamc@458 444
adamc@671 445 int uw_db_begin(uw_context);
adamc@167 446
adamc@311 447 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425 448 cleanup *cl;
adamc@425 449
adamc@167 450 va_list ap;
adamc@167 451 va_start(ap, fmt);
adamc@167 452
adamc@167 453 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167 454
adamc@425 455 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425 456 cl->func(cl->arg);
adamc@425 457
adamc@425 458 ctx->cleanup_front = ctx->cleanup;
adamc@425 459
adamc@190 460 longjmp(ctx->jmp_buf, fk);
adamc@167 461 }
adamc@167 462
adamc@425 463 void uw_push_cleanup(uw_context ctx, void (*func)(void *), void *arg) {
adamc@425 464 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425 465 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425 466 if (len == 0)
adamc@425 467 newLen = 1;
adamc@425 468 else
adamc@428 469 newLen = len * 2;
adamc@470 470 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425 471 ctx->cleanup_front = ctx->cleanup + len;
adamc@425 472 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425 473 }
adamc@425 474
adamc@425 475 ctx->cleanup_front->func = func;
adamc@425 476 ctx->cleanup_front->arg = arg;
adamc@425 477 ++ctx->cleanup_front;
adamc@425 478 }
adamc@425 479
adamc@682 480 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adamc@682 481 int len = strlen(h);
adamc@682 482 char *s = ctx->headers, *p;
adamc@682 483
adamc@682 484 while (p = strchr(s, ':')) {
adamc@682 485 if (p - s == len && !strncasecmp(s, h, len)) {
adamc@682 486 return p + 2;
adamc@682 487 } else {
adamc@682 488 if ((s = strchr(p, 0)) && s < ctx->headers_end)
adamc@682 489 s += 2;
adamc@682 490 else
adamc@682 491 return NULL;
adamc@682 492 }
adamc@682 493 }
adamc@682 494
adamc@682 495 return NULL;
adamc@682 496 }
adamc@682 497
adamc@682 498 void uw_login(uw_context ctx) {
adamc@693 499 if (ctx->needs_push) {
adamc@682 500 char *id_s, *pass_s;
adamc@682 501
adamc@682 502 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682 503 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682 504 unsigned id = atoi(id_s);
adamc@682 505 int pass = atoi(pass_s);
adamc@682 506 client *c = find_client(id);
adamc@682 507
adamc@682 508 if (c == NULL)
adamc@682 509 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", id_s, pass_s);
adamc@682 510 else {
adamc@685 511 use_client(c);
adamc@682 512 ctx->client = c;
adamc@682 513
adamc@682 514 if (c->mode != USED)
adamc@682 515 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682 516 if (c->pass != pass)
adamc@682 517 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682 518 }
adamc@682 519 } else {
adamc@682 520 client *c = new_client();
adamc@685 521 use_client(c);
adamc@682 522 ctx->client = c;
adamc@682 523 }
adamc@682 524 }
adamc@682 525 }
adamc@682 526
adamc@671 527 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671 528 int r = setjmp(ctx->jmp_buf);
adamc@671 529
adamc@671 530 if (r == 0) {
adamc@671 531 if (uw_db_begin(ctx))
adamc@671 532 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adamc@682 533
adamc@671 534 uw_handle(ctx, path);
adamc@671 535 }
adamc@671 536
adamc@671 537 return r;
adamc@671 538 }
adamc@671 539
adamc@682 540 uw_Basis_client uw_Basis_self(uw_context ctx, uw_unit u) {
adamc@682 541 if (ctx->client == NULL)
adamc@682 542 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682 543
adamc@682 544 return ctx->client->id;
adamc@682 545 }
adamc@682 546
adamc@425 547 void uw_pop_cleanup(uw_context ctx) {
adamc@425 548 if (ctx->cleanup_front == ctx->cleanup)
adamc@425 549 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425 550
adamc@425 551 --ctx->cleanup_front;
adamc@425 552 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425 553 }
adamc@425 554
adamc@311 555 char *uw_error_message(uw_context ctx) {
adamc@167 556 return ctx->error_message;
adamc@167 557 }
adamc@167 558
adamc@737 559 extern int uw_input_num(const char*);
adamc@144 560
adamc@737 561 void uw_set_input(uw_context ctx, const char *name, char *value) {
adamc@311 562 int n = uw_input_num(name);
adamc@144 563
adamc@169 564 if (n < 0)
adamc@311 565 uw_error(ctx, FATAL, "Bad input name %s", name);
adamc@144 566
adamc@311 567 if (n >= uw_inputs_len)
adamc@311 568 uw_error(ctx, FATAL, "For input name %s, index %d is out of range", name, n);
adamc@169 569
adamc@737 570 ctx->inputs[n].kind = NORMAL;
adamc@737 571 ctx->inputs[n].data.normal = value;
adamc@144 572 }
adamc@144 573
adamc@311 574 char *uw_get_input(uw_context ctx, int n) {
adamc@169 575 if (n < 0)
adamc@311 576 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311 577 if (n >= uw_inputs_len)
adamc@311 578 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737 579
adamc@737 580 switch (ctx->inputs[n].kind) {
adamc@737 581 case UNSET:
adamc@737 582 return NULL;
adamc@739 583 case FIL:
adamc@739 584 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@737 585 case NORMAL:
adamc@737 586 return ctx->inputs[n].data.normal;
adamc@737 587 default:
adamc@737 588 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 589 }
adamc@138 590 }
adamc@138 591
adamc@311 592 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190 593 if (n < 0)
adamc@311 594 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311 595 if (n >= uw_inputs_len)
adamc@311 596 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737 597
adamc@737 598 switch (ctx->inputs[n].kind) {
adamc@737 599 case UNSET:
adamc@737 600 return "";
adamc@739 601 case FIL:
adamc@739 602 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@737 603 case NORMAL:
adamc@737 604 return ctx->inputs[n].data.normal;
adamc@737 605 default:
adamc@737 606 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 607 }
adamc@737 608 }
adamc@737 609
adamc@739 610 void uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@737 611 int n = uw_input_num(name);
adamc@737 612
adamc@737 613 if (n < 0)
adamc@737 614 uw_error(ctx, FATAL, "Bad file input name %s", name);
adamc@737 615
adamc@737 616 if (n >= uw_inputs_len)
adamc@737 617 uw_error(ctx, FATAL, "For file input name %s, index %d is out of range", name, n);
adamc@737 618
adamc@739 619 ctx->inputs[n].kind = FIL;
adamc@739 620 ctx->inputs[n].data.file = f;
adamc@737 621 }
adamc@737 622
adamc@739 623 void *uw_malloc(uw_context ctx, size_t len);
adamc@739 624
adamc@739 625 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737 626 if (n < 0)
adamc@737 627 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@737 628 if (n >= uw_inputs_len)
adamc@737 629 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737 630
adamc@737 631 switch (ctx->inputs[n].kind) {
adamc@737 632 case UNSET:
adamc@737 633 {
adamc@739 634 char *data = uw_malloc(ctx, 0);
adamc@739 635 uw_Basis_file f = {"", {0, data}};
adamc@739 636 return f;
adamc@737 637 }
adamc@739 638 case FIL:
adamc@739 639 return ctx->inputs[n].data.file;
adamc@737 640 case NORMAL:
adamc@737 641 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@737 642 default:
adamc@737 643 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 644 }
adamc@190 645 }
adamc@190 646
adamc@643 647 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643 648 ctx->script_header = s;
adamc@643 649 }
adamc@643 650
adamc@667 651 void uw_set_url_prefix(uw_context ctx, const char *s) {
adamc@667 652 ctx->url_prefix = s;
adamc@667 653 }
adamc@667 654
adamc@693 655 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693 656 ctx->needs_push = n;
adamc@693 657 }
adamc@693 658
adamc@736 659 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736 660 ctx->needs_sig = n;
adamc@736 661 }
adamc@736 662
adamc@667 663
adamc@667 664 static void buf_check_ctx(uw_context ctx, buf *b, size_t extra, const char *desc) {
adamc@666 665 if (b->back - b->front < extra) {
adamc@666 666 size_t desired = b->front - b->start + extra, next;
adamc@136 667 char *new_heap;
adamc@136 668
adamc@666 669 next = b->back - b->start;
adamc@317 670 if (next == 0)
adamc@317 671 next = 1;
adamc@317 672 for (; next < desired; next *= 2);
adamc@136 673
adamc@666 674 new_heap = realloc(b->start, next);
adamc@666 675 b->front = new_heap + (b->front - b->start);
adamc@666 676 b->back = new_heap + next;
adamc@136 677
adamc@667 678 if (new_heap != b->start) {
adamc@666 679 b->start = new_heap;
adamc@666 680 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously", desc);
adamc@136 681 }
adamc@136 682
adamc@666 683 b->start = new_heap;
adamc@136 684 }
adamc@136 685 }
adamc@136 686
adamc@666 687 static void uw_check_heap(uw_context ctx, size_t extra) {
adamc@667 688 buf_check_ctx(ctx, &ctx->heap, extra, "heap chunk");
adamc@666 689 }
adamc@666 690
adamc@311 691 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136 692 void *result;
adamc@136 693
adamc@311 694 uw_check_heap(ctx, len);
adamc@136 695
adamc@666 696 result = ctx->heap.front;
adamc@666 697 ctx->heap.front += len;
adamc@136 698 return result;
adamc@117 699 }
adamc@117 700
adamc@323 701 void uw_begin_region(uw_context ctx) {
adamc@666 702 regions *r = (regions *) ctx->heap.front;
adamc@323 703
adamc@323 704 uw_check_heap(ctx, sizeof(regions));
adamc@323 705
adamc@666 706 ctx->heap.front += sizeof(regions);
adamc@323 707
adamc@323 708 r->next = ctx->regions;
adamc@323 709 ctx->regions = r;
adamc@323 710 }
adamc@323 711
adamc@323 712 void uw_end_region(uw_context ctx) {
adamc@323 713 regions *r = ctx->regions;
adamc@323 714
adamc@323 715 if (r == NULL)
adamc@323 716 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323 717
adamc@666 718 ctx->heap.front = (char *) r;
adamc@323 719 ctx->regions = r->next;
adamc@323 720 }
adamc@323 721
adamc@324 722 void uw_memstats(uw_context ctx) {
adamc@666 723 printf("Headers: %d/%d\n", buf_used(&ctx->outHeaders), buf_avail(&ctx->outHeaders));
adamc@666 724 printf("Script: %d/%d\n", buf_used(&ctx->script), buf_avail(&ctx->script));
adamc@666 725 printf("Page: %d/%d\n", buf_used(&ctx->page), buf_avail(&ctx->page));
adamc@666 726 printf("Heap: %d/%d\n", buf_used(&ctx->heap), buf_avail(&ctx->heap));
adamc@324 727 }
adamc@324 728
adamc@311 729 int uw_send(uw_context ctx, int sock) {
adamc@666 730 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462 731
adamc@462 732 if (n < 0)
adamc@462 733 return n;
adamc@462 734
adamc@462 735 n = uw_really_send(sock, "\r\n", 2);
adamc@462 736
adamc@462 737 if (n < 0)
adamc@462 738 return n;
adamc@462 739
adamc@666 740 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462 741 }
adamc@462 742
adamc@462 743 static void uw_check_headers(uw_context ctx, size_t extra) {
adamc@667 744 buf_check(&ctx->outHeaders, extra);
adamc@462 745 }
adamc@462 746
adamc@462 747 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462 748 int len = strlen(s);
adamc@462 749
adamc@462 750 uw_check_headers(ctx, len + 1);
adamc@666 751 strcpy(ctx->outHeaders.front, s);
adamc@666 752 ctx->outHeaders.front += len;
adamc@562 753 }
adamc@562 754
adamc@562 755 static void uw_check_script(uw_context ctx, size_t extra) {
adamc@667 756 buf_check(&ctx->script, extra);
adamc@562 757 }
adamc@562 758
adamc@562 759 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562 760 int len = strlen(s);
adamc@562 761
adamc@562 762 uw_check_script(ctx, len + 1);
adamc@666 763 strcpy(ctx->script.front, s);
adamc@666 764 ctx->script.front += len;
adamc@562 765 }
adamc@562 766
adamc@645 767 const char *uw_Basis_get_script(uw_context ctx, uw_unit u) {
adamc@667 768 if (ctx->script_header[0] == 0)
adamc@667 769 return "";
adamc@696 770 else if (buf_used(&ctx->script) == 0)
adamc@696 771 return ctx->script_header;
adamc@667 772 else {
adamc@695 773 char *r = uw_malloc(ctx, strlen(ctx->script_header) + 42 + buf_used(&ctx->script));
adamc@695 774 sprintf(r, "%s<script type=\"text/javascript\">%s</script>",
adamc@673 775 ctx->script_header,
adamc@673 776 ctx->script.start);
adamc@565 777 return r;
adamc@565 778 }
adamc@565 779 }
adamc@565 780
adamc@695 781 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695 782 if (s[0] == 0)
adamc@695 783 return "";
adamc@695 784 else {
adamc@695 785 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695 786 sprintf(r, " onload='%s'", s);
adamc@695 787 return r;
adamc@695 788 }
adamc@695 789 }
adamc@695 790
adamc@736 791 extern uw_Basis_string uw_cookie_sig(uw_context);
adamc@736 792
adamc@694 793 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736 794 if (ctx->client == NULL) {
adamc@736 795 if (ctx->needs_sig) {
adamc@736 796 char *sig = uw_cookie_sig(ctx);
adamc@736 797 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736 798 sprintf(r, "sig=\"%s\";", sig);
adamc@736 799 return r;
adamc@736 800 }
adamc@736 801 else
adamc@736 802 return "";
adamc@736 803 } else {
adamc@736 804 char *sig = ctx->needs_sig ? uw_cookie_sig(ctx) : "";
adamc@736 805 char *r = uw_malloc(ctx, 59 + 3 * INTS_MAX + strlen(ctx->url_prefix)
adamc@736 806 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adamc@736 807 sprintf(r, "client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adamc@682 808 ctx->client->id,
adamc@682 809 ctx->client->pass,
adamc@679 810 ctx->url_prefix,
adamc@736 811 ctx->timeout,
adamc@736 812 ctx->needs_sig ? "sig=\"" : "",
adamc@736 813 sig,
adamc@736 814 ctx->needs_sig ? "\";" : "");
adamc@679 815 return r;
adamc@668 816 }
adamc@667 817 }
adamc@667 818
adamc@574 819 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574 820 char *r, *s2;
adamc@574 821
adamc@574 822 uw_check_heap(ctx, strlen(s) * 4 + 2);
adamc@574 823
adamc@666 824 r = s2 = ctx->heap.front;
adamc@574 825 *s2++ = '"';
adamc@574 826
adamc@574 827 for (; *s; s++) {
adamc@574 828 char c = *s;
adamc@574 829
adamc@574 830 switch (c) {
adamc@574 831 case '"':
adamc@574 832 strcpy(s2, "\\\"");
adamc@574 833 s2 += 2;
adamc@574 834 break;
adamc@574 835 case '\\':
adamc@574 836 strcpy(s2, "\\\\");
adamc@574 837 s2 += 2;
adamc@574 838 break;
adamc@574 839 default:
adamc@574 840 if (isprint(c))
adamc@574 841 *s2++ = c;
adamc@574 842 else {
adamc@574 843 sprintf(s2, "\\%3o", c);
adamc@574 844 s2 += 4;
adamc@574 845 }
adamc@574 846 }
adamc@574 847 }
adamc@574 848
adamc@574 849 strcpy(s2, "\"");
adamc@666 850 ctx->heap.front = s2 + 1;
adamc@574 851 return r;
adamc@574 852 }
adamc@574 853
adamc@574 854 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574 855 char *r, *s2;
adamc@574 856
adamc@574 857 uw_check_script(ctx, strlen(s) * 4 + 2);
adamc@574 858
adamc@666 859 r = s2 = ctx->script.front;
adamc@574 860 *s2++ = '"';
adamc@574 861
adamc@574 862 for (; *s; s++) {
adamc@574 863 char c = *s;
adamc@574 864
adamc@574 865 switch (c) {
adamc@577 866 case '\'':
adamc@574 867 strcpy(s2, "\\\"");
adamc@574 868 s2 += 2;
adamc@574 869 break;
adamc@574 870 case '\\':
adamc@574 871 strcpy(s2, "\\\\");
adamc@574 872 s2 += 2;
adamc@574 873 break;
adamc@574 874 default:
adamc@574 875 if (isprint(c))
adamc@574 876 *s2++ = c;
adamc@574 877 else {
adamc@574 878 sprintf(s2, "\\%3o", c);
adamc@574 879 s2 += 4;
adamc@574 880 }
adamc@574 881 }
adamc@574 882 }
adamc@574 883
adamc@574 884 strcpy(s2, "\"");
adamc@666 885 ctx->script.front = s2 + 1;
adamc@574 886 return r;
adamc@574 887 }
adamc@574 888
adamc@682 889 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 890 if (ctx->client == NULL || chn.cli != ctx->client->id)
adamc@682 891 return "null";
adamc@682 892 else {
adamc@682 893 int len;
adamc@682 894 char *r;
adamc@682 895
adamc@682 896 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 897 r = ctx->heap.front;
adamc@682 898 sprintf(r, "%u%n", chn.chn, &len);
adamc@682 899 ctx->heap.front += len+1;
adamc@682 900 return r;
adamc@682 901 }
adamc@682 902 }
adamc@682 903
adamc@577 904 uw_Basis_int uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577 905 int len;
adamc@577 906 size_t s_len = strlen(s);
adamc@562 907
adamc@577 908 uw_check_script(ctx, 12 + INTS_MAX + s_len);
adamc@666 909 sprintf(ctx->script.front, "var s%d=sc(%n", ctx->source_count, &len);
adamc@666 910 ctx->script.front += len;
adamc@666 911 strcpy(ctx->script.front, s);
adamc@666 912 ctx->script.front += s_len;
adamc@666 913 strcpy(ctx->script.front, ");");
adamc@666 914 ctx->script.front += 2;
adamc@562 915
adamc@565 916 return ctx->source_count++;
adamc@117 917 }
adamc@117 918
adamc@577 919 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_int n, uw_Basis_string s) {
adamc@577 920 int len;
adamc@577 921 size_t s_len = strlen(s);
adamc@577 922
adamc@577 923 uw_check_script(ctx, 6 + INTS_MAX + s_len);
adamc@666 924 sprintf(ctx->script.front, "s%d.v=%n", (int)n, &len);
adamc@666 925 ctx->script.front += len;
adamc@666 926 strcpy(ctx->script.front, s);
adamc@666 927 ctx->script.front += s_len;
adamc@666 928 strcpy(ctx->script.front, ";");
adamc@666 929 ctx->script.front++;
adamc@577 930
adamc@577 931 return uw_unit_v;
adamc@577 932 }
adamc@577 933
adamc@311 934 static void uw_check(uw_context ctx, size_t extra) {
adamc@667 935 buf_check(&ctx->page, extra);
adamc@117 936 }
adamc@117 937
adamc@311 938 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666 939 *(ctx->page.front)++ = c;
adamc@117 940 }
adamc@117 941
adamc@311 942 void uw_writec(uw_context ctx, char c) {
adamc@311 943 uw_check(ctx, 1);
adamc@311 944 uw_writec_unsafe(ctx, c);
adamc@117 945 }
adamc@117 946
adamc@311 947 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117 948 int len = strlen(s);
adamc@666 949 memcpy(ctx->page.front, s, len);
adamc@666 950 ctx->page.front += len;
adamc@117 951 }
adamc@117 952
adamc@311 953 void uw_write(uw_context ctx, const char* s) {
adamc@311 954 uw_check(ctx, strlen(s) + 1);
adamc@311 955 uw_write_unsafe(ctx, s);
adamc@666 956 *ctx->page.front = 0;
adamc@102 957 }
adamc@106 958
adamc@311 959 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136 960 char *result;
adamc@136 961 int len;
adamc@311 962 uw_check_heap(ctx, INTS_MAX);
adamc@666 963 result = ctx->heap.front;
adamc@276 964 sprintf(result, "%lld%n", n, &len);
adamc@666 965 ctx->heap.front += len+1;
adamc@136 966 return result;
adamc@106 967 }
adamc@106 968
adamc@311 969 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136 970 char *result;
adamc@136 971 int len;
adamc@311 972 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 973 result = ctx->heap.front;
adamc@136 974 sprintf(result, "%g%n", n, &len);
adamc@666 975 ctx->heap.front += len+1;
adamc@136 976 return result;
adamc@106 977 }
adamc@106 978
adamc@311 979 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136 980 int len = strlen(s);
adamc@136 981 char *result, *p;
adamc@311 982 uw_check_heap(ctx, len * 6 + 1);
adamc@136 983
adamc@666 984 result = p = ctx->heap.front;
adamc@136 985
adamc@136 986 for (; *s; s++) {
adamc@136 987 char c = *s;
adamc@136 988
adamc@136 989 if (c == '"') {
adamc@136 990 strcpy(p, "&quot;");
adamc@136 991 p += 6;
adamc@136 992 } else if (c == '&') {
adamc@136 993 strcpy(p, "&amp;");
adamc@136 994 p += 5;
adamc@136 995 }
adamc@136 996 else if (isprint(c))
adamc@136 997 *p++ = c;
adamc@136 998 else {
adamc@136 999 int len2;
adamc@136 1000 sprintf(p, "&#%d;%n", c, &len2);
adamc@136 1001 p += len2;
adamc@136 1002 }
adamc@136 1003 }
adamc@136 1004
adamc@137 1005 *p++ = 0;
adamc@666 1006 ctx->heap.front = p;
adamc@136 1007 return result;
adamc@106 1008 }
adamc@106 1009
adamc@721 1010 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721 1011 return s;
adamc@721 1012 }
adamc@721 1013
adamc@311 1014 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117 1015 int len;
adamc@117 1016
adamc@666 1017 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1018 ctx->page.front += len;
adamc@106 1019 }
adamc@106 1020
adamc@428 1021 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311 1022 uw_check(ctx, INTS_MAX);
adamc@311 1023 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428 1024
adamc@428 1025 return uw_unit_v;
adamc@106 1026 }
adamc@106 1027
adamc@428 1028 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117 1029 int len;
adamc@117 1030
adamc@311 1031 uw_check(ctx, FLOATS_MAX);
adamc@666 1032 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1033 ctx->page.front += len;
adamc@428 1034
adamc@428 1035 return uw_unit_v;
adamc@117 1036 }
adamc@117 1037
adamc@428 1038 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311 1039 uw_check(ctx, strlen(s) * 6);
adamc@117 1040
adamc@106 1041 for (; *s; s++) {
adamc@106 1042 char c = *s;
adamc@106 1043
adamc@106 1044 if (c == '"')
adamc@311 1045 uw_write_unsafe(ctx, "&quot;");
adamc@136 1046 else if (c == '&')
adamc@311 1047 uw_write_unsafe(ctx, "&amp;");
adamc@106 1048 else if (isprint(c))
adamc@311 1049 uw_writec_unsafe(ctx, c);
adamc@106 1050 else {
adamc@311 1051 uw_write_unsafe(ctx, "&#");
adamc@311 1052 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311 1053 uw_writec_unsafe(ctx, ';');
adamc@106 1054 }
adamc@106 1055 }
adamc@428 1056
adamc@428 1057 return uw_unit_v;
adamc@106 1058 }
adamc@120 1059
adamc@120 1060
adamc@311 1061 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137 1062 int len;
adamc@137 1063 char *r;
adamc@137 1064
adamc@311 1065 uw_check_heap(ctx, INTS_MAX);
adamc@666 1066 r = ctx->heap.front;
adamc@276 1067 sprintf(r, "%lld%n", n, &len);
adamc@666 1068 ctx->heap.front += len+1;
adamc@137 1069 return r;
adamc@120 1070 }
adamc@120 1071
adamc@682 1072 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1073 if (ctx->client == NULL || chn.cli != ctx->client->id)
adamc@682 1074 return "";
adamc@682 1075 else {
adamc@682 1076 int len;
adamc@682 1077 char *r;
adamc@679 1078
adamc@682 1079 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1080 r = ctx->heap.front;
adamc@682 1081 sprintf(r, "%u%n", chn.chn, &len);
adamc@682 1082 ctx->heap.front += len+1;
adamc@682 1083 return r;
adamc@682 1084 }
adamc@679 1085 }
adamc@679 1086
adamc@311 1087 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137 1088 int len;
adamc@137 1089 char *r;
adamc@137 1090
adamc@311 1091 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1092 r = ctx->heap.front;
adamc@137 1093 sprintf(r, "%g%n", n, &len);
adamc@666 1094 ctx->heap.front += len+1;
adamc@137 1095 return r;
adamc@120 1096 }
adamc@120 1097
adamc@311 1098 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137 1099 char *r, *p;
adamc@137 1100
adamc@311 1101 uw_check_heap(ctx, strlen(s) * 3 + 1);
adamc@137 1102
adamc@666 1103 for (r = p = ctx->heap.front; *s; s++) {
adamc@137 1104 char c = *s;
adamc@137 1105
adamc@137 1106 if (c == ' ')
adamc@137 1107 *p++ = '+';
adamc@137 1108 else if (isalnum(c))
adamc@137 1109 *p++ = c;
adamc@137 1110 else {
adamc@137 1111 sprintf(p, "%%%02X", c);
adamc@137 1112 p += 3;
adamc@137 1113 }
adamc@137 1114 }
adamc@137 1115
adamc@137 1116 *p++ = 0;
adamc@666 1117 ctx->heap.front = p;
adamc@137 1118 return r;
adamc@120 1119 }
adamc@120 1120
adamc@311 1121 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 1122 if (b == uw_Basis_False)
adamc@186 1123 return "0";
adamc@186 1124 else
adamc@186 1125 return "1";
adamc@186 1126 }
adamc@186 1127
adamc@311 1128 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120 1129 int len;
adamc@120 1130
adamc@666 1131 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1132 ctx->page.front += len;
adamc@120 1133 }
adamc@120 1134
adamc@428 1135 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311 1136 uw_check(ctx, INTS_MAX);
adamc@311 1137 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428 1138
adamc@428 1139 return uw_unit_v;
adamc@120 1140 }
adamc@120 1141
adamc@682 1142 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1143 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682 1144 int len;
adamc@682 1145
adamc@682 1146 uw_check(ctx, INTS_MAX + 1);
adamc@682 1147 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682 1148 ctx->page.front += len;
adamc@682 1149 }
adamc@682 1150
adamc@679 1151 return uw_unit_v;
adamc@679 1152 }
adamc@679 1153
adamc@428 1154 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120 1155 int len;
adamc@120 1156
adamc@311 1157 uw_check(ctx, FLOATS_MAX);
adamc@666 1158 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1159 ctx->page.front += len;
adamc@428 1160
adamc@428 1161 return uw_unit_v;
adamc@120 1162 }
adamc@120 1163
adamc@488 1164 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@488 1165 return uw_Basis_urlifyInt(ctx, t);
adamc@488 1166 }
adamc@488 1167
adamc@428 1168 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311 1169 uw_check(ctx, strlen(s) * 3);
adamc@120 1170
adamc@120 1171 for (; *s; s++) {
adamc@120 1172 char c = *s;
adamc@120 1173
adamc@120 1174 if (c == ' ')
adamc@311 1175 uw_writec_unsafe(ctx, '+');
adamc@120 1176 else if (isalnum(c))
adamc@311 1177 uw_writec_unsafe(ctx, c);
adamc@120 1178 else {
adamc@666 1179 sprintf(ctx->page.front, "%%%02X", c);
adamc@666 1180 ctx->page.front += 3;
adamc@120 1181 }
adamc@120 1182 }
adamc@428 1183
adamc@428 1184 return uw_unit_v;
adamc@120 1185 }
adamc@120 1186
adamc@428 1187 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311 1188 if (b == uw_Basis_False)
adamc@311 1189 uw_writec(ctx, '0');
adamc@186 1190 else
adamc@311 1191 uw_writec(ctx, '1');
adamc@428 1192
adamc@428 1193 return uw_unit_v;
adamc@186 1194 }
adamc@186 1195
adamc@120 1196
adamc@311 1197 static char *uw_unurlify_advance(char *s) {
adamc@144 1198 char *new_s = strchr(s, '/');
adamc@120 1199
adamc@120 1200 if (new_s)
adamc@120 1201 *new_s++ = 0;
adamc@120 1202 else
adamc@144 1203 new_s = strchr(s, 0);
adamc@144 1204
adamc@144 1205 return new_s;
adamc@144 1206 }
adamc@144 1207
adamc@311 1208 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311 1209 char *new_s = uw_unurlify_advance(*s);
adamc@311 1210 uw_Basis_int r;
adamc@120 1211
adamc@276 1212 r = atoll(*s);
adamc@120 1213 *s = new_s;
adamc@120 1214 return r;
adamc@120 1215 }
adamc@120 1216
adamc@311 1217 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311 1218 char *new_s = uw_unurlify_advance(*s);
adamc@311 1219 uw_Basis_float r;
adamc@120 1220
adamc@120 1221 r = atof(*s);
adamc@120 1222 *s = new_s;
adamc@120 1223 return r;
adamc@120 1224 }
adamc@120 1225
adamc@488 1226 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adamc@488 1227 return uw_Basis_unurlifyInt(ctx, s);
adamc@488 1228 }
adamc@488 1229
adamc@311 1230 static uw_Basis_string uw_unurlifyString_to(uw_context ctx, char *r, char *s) {
adamc@144 1231 char *s1, *s2;
adamc@144 1232 int n;
adamc@136 1233
adamc@144 1234 for (s1 = r, s2 = s; *s2; ++s1, ++s2) {
adamc@136 1235 char c = *s2;
adamc@136 1236
adamc@136 1237 switch (c) {
adamc@136 1238 case '+':
adamc@136 1239 *s1 = ' ';
adamc@136 1240 break;
adamc@136 1241 case '%':
adamc@169 1242 if (s2[1] == 0)
adamc@311 1243 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169 1244 if (s2[2] == 0)
adamc@311 1245 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169 1246 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@311 1247 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@136 1248 *s1 = n;
adamc@136 1249 s2 += 2;
adamc@136 1250 break;
adamc@136 1251 default:
adamc@136 1252 *s1 = c;
adamc@136 1253 }
adamc@136 1254 }
adamc@136 1255 *s1++ = 0;
adamc@144 1256 return s1;
adamc@144 1257 }
adamc@144 1258
adamc@311 1259 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311 1260 char *new_s = uw_unurlify_advance(*s);
adamc@311 1261 uw_Basis_bool r;
adamc@186 1262
adamc@186 1263 if (*s[0] == 0 || !strcmp(*s, "0") || !strcmp(*s, "off"))
adamc@311 1264 r = uw_Basis_False;
adamc@186 1265 else
adamc@311 1266 r = uw_Basis_True;
adamc@186 1267
adamc@186 1268 *s = new_s;
adamc@186 1269 return r;
adamc@186 1270 }
adamc@186 1271
adamc@311 1272 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311 1273 char *new_s = uw_unurlify_advance(*s);
adamc@144 1274 char *r, *s1, *s2;
adamc@144 1275 int len, n;
adamc@144 1276
adamc@200 1277 len = strlen(*s);
adamc@311 1278 uw_check_heap(ctx, len + 1);
adamc@144 1279
adamc@666 1280 r = ctx->heap.front;
adamc@666 1281 ctx->heap.front = uw_unurlifyString_to(ctx, ctx->heap.front, *s);
adamc@136 1282 *s = new_s;
adamc@136 1283 return r;
adamc@120 1284 }
adamc@135 1285
adamc@135 1286
adamc@311 1287 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286 1288 int len;
adamc@286 1289 char *r;
adamc@286 1290
adamc@311 1291 uw_check_heap(ctx, INTS_MAX);
adamc@666 1292 r = ctx->heap.front;
adamc@286 1293 sprintf(r, "%lld%n", n, &len);
adamc@666 1294 ctx->heap.front += len+1;
adamc@286 1295 return r;
adamc@286 1296 }
adamc@286 1297
adamc@428 1298 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286 1299 int len;
adamc@286 1300
adamc@311 1301 uw_check(ctx, INTS_MAX);
adamc@666 1302 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1303 ctx->page.front += len;
adamc@428 1304
adamc@428 1305 return uw_unit_v;
adamc@286 1306 }
adamc@286 1307
adamc@311 1308 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286 1309 int len;
adamc@286 1310 char *r;
adamc@286 1311
adamc@311 1312 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1313 r = ctx->heap.front;
adamc@286 1314 sprintf(r, "%g%n", n, &len);
adamc@666 1315 ctx->heap.front += len+1;
adamc@286 1316 return r;
adamc@286 1317 }
adamc@286 1318
adamc@428 1319 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286 1320 int len;
adamc@286 1321
adamc@311 1322 uw_check(ctx, FLOATS_MAX);
adamc@666 1323 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1324 ctx->page.front += len;
adamc@428 1325
adamc@428 1326 return uw_unit_v;
adamc@286 1327 }
adamc@286 1328
adamc@311 1329 char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137 1330 char *r, *s2;
adamc@137 1331
adamc@311 1332 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137 1333
adamc@666 1334 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@137 1335 char c = *s;
adamc@137 1336
adamc@137 1337 switch (c) {
adamc@137 1338 case '<':
adamc@137 1339 strcpy(s2, "&lt;");
adamc@137 1340 s2 += 4;
adamc@137 1341 break;
adamc@137 1342 case '&':
adamc@137 1343 strcpy(s2, "&amp;");
adamc@137 1344 s2 += 5;
adamc@137 1345 break;
adamc@137 1346 default:
adamc@137 1347 if (isprint(c))
adamc@137 1348 *s2++ = c;
adamc@137 1349 else {
adamc@137 1350 int len2;
adamc@137 1351 sprintf(s2, "&#%d;%n", c, &len2);
adamc@137 1352 s2 += len2;
adamc@137 1353 }
adamc@137 1354 }
adamc@137 1355 }
adamc@137 1356
adamc@137 1357 *s2++ = 0;
adamc@666 1358 ctx->heap.front = s2;
adamc@137 1359 return r;
adamc@135 1360 }
adamc@135 1361
adamc@428 1362 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321 1363 uw_check(ctx, strlen(s) * 6);
adamc@135 1364
adamc@135 1365 for (; *s; s++) {
adamc@135 1366 char c = *s;
adamc@135 1367
adamc@135 1368 switch (c) {
adamc@135 1369 case '<':
adamc@311 1370 uw_write_unsafe(ctx, "&lt;");
adamc@135 1371 break;
adamc@135 1372 case '&':
adamc@311 1373 uw_write_unsafe(ctx, "&amp;");
adamc@135 1374 break;
adamc@135 1375 default:
adamc@135 1376 if (isprint(c))
adamc@311 1377 uw_writec_unsafe(ctx, c);
adamc@135 1378 else {
adamc@311 1379 uw_write_unsafe(ctx, "&#");
adamc@311 1380 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311 1381 uw_writec_unsafe(ctx, ';');
adamc@135 1382 }
adamc@135 1383 }
adamc@135 1384 }
adamc@428 1385
adamc@428 1386 return uw_unit_v;
adamc@135 1387 }
adamc@180 1388
adamc@311 1389 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 1390 if (b == uw_Basis_False)
adamc@286 1391 return "False";
adamc@286 1392 else
adamc@286 1393 return "True";
adamc@286 1394 }
adamc@286 1395
adamc@428 1396 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311 1397 if (b == uw_Basis_False) {
adamc@311 1398 uw_check(ctx, 6);
adamc@666 1399 strcpy(ctx->page.front, "False");
adamc@666 1400 ctx->page.front += 5;
adamc@286 1401 } else {
adamc@311 1402 uw_check(ctx, 5);
adamc@666 1403 strcpy(ctx->page.front, "True");
adamc@666 1404 ctx->page.front += 4;
adamc@286 1405 }
adamc@428 1406
adamc@428 1407 return uw_unit_v;
adamc@286 1408 }
adamc@286 1409
adamc@436 1410 #define TIME_FMT "%x %X"
adamc@438 1411 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436 1412
adamc@436 1413 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436 1414 size_t len;
adamc@436 1415 char *r;
adamc@436 1416 struct tm stm;
adamc@436 1417
adamc@436 1418 if (localtime_r(&t, &stm)) {
adamc@436 1419 uw_check_heap(ctx, TIMES_MAX);
adamc@666 1420 r = ctx->heap.front;
adamc@436 1421 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 1422 ctx->heap.front += len+1;
adamc@436 1423 return r;
adamc@436 1424 } else
adamc@436 1425 return "<i>Invalid time</i>";
adamc@436 1426 }
adamc@436 1427
adamc@436 1428 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436 1429 size_t len;
adamc@436 1430 char *r;
adamc@436 1431 struct tm stm;
adamc@436 1432
adamc@436 1433 if (localtime_r(&t, &stm)) {
adamc@436 1434 uw_check(ctx, TIMES_MAX);
adamc@666 1435 r = ctx->page.front;
adamc@436 1436 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 1437 ctx->page.front += len;
adamc@436 1438 } else {
adamc@436 1439 uw_check(ctx, 20);
adamc@666 1440 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666 1441 ctx->page.front += 19;
adamc@436 1442 }
adamc@436 1443
adamc@436 1444 return uw_unit_v;
adamc@436 1445 }
adamc@436 1446
adamc@311 1447 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@180 1448 int len = strlen(s1) + strlen(s2) + 1;
adamc@180 1449 char *s;
adamc@180 1450
adamc@311 1451 uw_check_heap(ctx, len);
adamc@180 1452
adamc@666 1453 s = ctx->heap.front;
adamc@180 1454
adamc@180 1455 strcpy(s, s1);
adamc@180 1456 strcat(s, s2);
adamc@666 1457 ctx->heap.front += len;
adamc@180 1458
adamc@180 1459 return s;
adamc@180 1460 }
adamc@278 1461
adamc@737 1462 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@278 1463 int len = strlen(s1) + 1;
adamc@278 1464 char *s;
adamc@278 1465
adamc@311 1466 uw_check_heap(ctx, len);
adamc@278 1467
adamc@666 1468 s = ctx->heap.front;
adamc@278 1469
adamc@278 1470 strcpy(s, s1);
adamc@666 1471 ctx->heap.front += len;
adamc@278 1472
adamc@278 1473 return s;
adamc@278 1474 }
adamc@280 1475
adamc@737 1476 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493 1477 if (s1)
adamc@737 1478 return uw_strdup(ctx, s1);
adamc@493 1479 else
adamc@493 1480 return NULL;
adamc@493 1481 }
adamc@493 1482
adamc@280 1483
adamc@311 1484 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281 1485 int len;
adamc@281 1486 char *r;
adamc@281 1487
adamc@311 1488 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666 1489 r = ctx->heap.front;
adamc@281 1490 sprintf(r, "%lld::int8%n", n, &len);
adamc@666 1491 ctx->heap.front += len+1;
adamc@281 1492 return r;
adamc@281 1493 }
adamc@281 1494
adamc@467 1495 char *uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int *n) {
adamc@467 1496 if (n == NULL)
adamc@467 1497 return "NULL";
adamc@467 1498 else
adamc@467 1499 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467 1500 }
adamc@467 1501
adamc@311 1502 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281 1503 int len;
adamc@281 1504 char *r;
adamc@281 1505
adamc@311 1506 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666 1507 r = ctx->heap.front;
adamc@281 1508 sprintf(r, "%g::float8%n", n, &len);
adamc@666 1509 ctx->heap.front += len+1;
adamc@281 1510 return r;
adamc@281 1511 }
adamc@281 1512
adamc@467 1513 char *uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float *n) {
adamc@467 1514 if (n == NULL)
adamc@467 1515 return "NULL";
adamc@467 1516 else
adamc@467 1517 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467 1518 }
adamc@467 1519
adamc@281 1520
adamc@311 1521 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280 1522 char *r, *s2;
adamc@280 1523
adamc@311 1524 uw_check_heap(ctx, strlen(s) * 2 + 10);
adamc@280 1525
adamc@666 1526 r = s2 = ctx->heap.front;
adamc@280 1527 *s2++ = 'E';
adamc@280 1528 *s2++ = '\'';
adamc@280 1529
adamc@280 1530 for (; *s; s++) {
adamc@280 1531 char c = *s;
adamc@280 1532
adamc@280 1533 switch (c) {
adamc@280 1534 case '\'':
adamc@280 1535 strcpy(s2, "\\'");
adamc@280 1536 s2 += 2;
adamc@280 1537 break;
adamc@280 1538 case '\\':
adamc@280 1539 strcpy(s2, "\\\\");
adamc@280 1540 s2 += 2;
adamc@280 1541 break;
adamc@280 1542 default:
adamc@280 1543 if (isprint(c))
adamc@280 1544 *s2++ = c;
adamc@280 1545 else {
adamc@737 1546 sprintf(s2, "\\%03o", c);
adamc@280 1547 s2 += 4;
adamc@280 1548 }
adamc@280 1549 }
adamc@280 1550 }
adamc@280 1551
adamc@281 1552 strcpy(s2, "'::text");
adamc@666 1553 ctx->heap.front = s2 + 8;
adamc@280 1554 return r;
adamc@280 1555 }
adamc@281 1556
adamc@737 1557 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737 1558 char *r, *s2;
adamc@737 1559 size_t i;
adamc@737 1560
adamc@737 1561 uw_check_heap(ctx, b.size * 5 + 11);
adamc@737 1562
adamc@737 1563 r = s2 = ctx->heap.front;
adamc@737 1564 *s2++ = 'E';
adamc@737 1565 *s2++ = '\'';
adamc@737 1566
adamc@737 1567 for (i = 0; i < b.size; ++i) {
adamc@737 1568 char c = b.data[i];
adamc@737 1569
adamc@737 1570 switch (c) {
adamc@737 1571 case '\'':
adamc@737 1572 strcpy(s2, "\\'");
adamc@737 1573 s2 += 2;
adamc@737 1574 break;
adamc@737 1575 case '\\':
adamc@737 1576 strcpy(s2, "\\\\\\\\");
adamc@737 1577 s2 += 4;
adamc@737 1578 break;
adamc@737 1579 default:
adamc@737 1580 if (isprint(c))
adamc@737 1581 *s2++ = c;
adamc@737 1582 else {
adamc@737 1583 sprintf(s2, "\\\\%03o", c);
adamc@737 1584 s2 += 5;
adamc@737 1585 }
adamc@737 1586 }
adamc@737 1587 }
adamc@737 1588
adamc@737 1589 strcpy(s2, "'::bytea");
adamc@737 1590 ctx->heap.front = s2 + 9;
adamc@737 1591 return r;
adamc@737 1592 }
adamc@737 1593
adamc@682 1594 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1595 int len;
adamc@682 1596 char *r;
adamc@682 1597 unsigned long long combo = ((unsigned long long)chn.cli << 32) | chn.chn;
adamc@682 1598
adamc@682 1599 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682 1600 r = ctx->heap.front;
adamc@682 1601 sprintf(r, "%lld::int8%n", combo, &len);
adamc@682 1602 ctx->heap.front += len+1;
adamc@682 1603 return r;
adamc@682 1604 }
adamc@682 1605
adamc@682 1606 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1607 int len;
adamc@682 1608 char *r;
adamc@682 1609 unsigned long long combo = ((unsigned long long)chn.cli << 32) | chn.chn;
adamc@682 1610
adamc@682 1611 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1612 r = ctx->heap.front;
adamc@682 1613 sprintf(r, "%lld%n", combo, &len);
adamc@682 1614 ctx->heap.front += len+1;
adamc@682 1615 return r;
adamc@682 1616 }
adamc@682 1617
adamc@682 1618 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682 1619 int len;
adamc@682 1620 char *r;
adamc@682 1621
adamc@682 1622 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682 1623 r = ctx->heap.front;
adamc@682 1624 sprintf(r, "%u::int4%n", cli, &len);
adamc@682 1625 ctx->heap.front += len+1;
adamc@682 1626 return r;
adamc@682 1627 }
adamc@682 1628
adamc@682 1629 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682 1630 int len;
adamc@682 1631 char *r;
adamc@682 1632
adamc@682 1633 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1634 r = ctx->heap.front;
adamc@682 1635 sprintf(r, "%u%n", cli, &len);
adamc@682 1636 ctx->heap.front += len+1;
adamc@682 1637 return r;
adamc@682 1638 }
adamc@682 1639
adamc@467 1640 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467 1641 if (s == NULL)
adamc@467 1642 return "NULL";
adamc@467 1643 else
adamc@467 1644 return uw_Basis_sqlifyString(ctx, s);
adamc@467 1645 }
adamc@467 1646
adamc@311 1647 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 1648 if (b == uw_Basis_False)
adamc@281 1649 return "FALSE";
adamc@281 1650 else
adamc@281 1651 return "TRUE";
adamc@281 1652 }
adamc@282 1653
adamc@467 1654 char *uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool *b) {
adamc@467 1655 if (b == NULL)
adamc@467 1656 return "NULL";
adamc@467 1657 else
adamc@467 1658 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467 1659 }
adamc@467 1660
adamc@439 1661 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439 1662 size_t len;
adamc@682 1663 char *r, *s;
adamc@682 1664 struct tm stm;
adamc@682 1665
adamc@682 1666 if (localtime_r(&t, &stm)) {
adamc@682 1667 s = uw_malloc(ctx, TIMES_MAX);
adamc@682 1668 len = strftime(s, TIMES_MAX, TIME_FMT, &stm);
adamc@682 1669 r = uw_malloc(ctx, len + 14);
adamc@682 1670 sprintf(r, "'%s'::timestamp", s);
adamc@682 1671 return r;
adamc@682 1672 } else
adamc@682 1673 return "<Invalid time>";
adamc@682 1674 }
adamc@682 1675
adamc@682 1676 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682 1677 size_t len;
adamc@439 1678 char *r;
adamc@439 1679 struct tm stm;
adamc@439 1680
adamc@439 1681 if (localtime_r(&t, &stm)) {
adamc@439 1682 uw_check_heap(ctx, TIMES_MAX);
adamc@666 1683 r = ctx->heap.front;
adamc@439 1684 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 1685 ctx->heap.front += len+1;
adamc@439 1686 return r;
adamc@439 1687 } else
adamc@439 1688 return "<Invalid time>";
adamc@439 1689 }
adamc@439 1690
adamc@467 1691 char *uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time *t) {
adamc@467 1692 if (t == NULL)
adamc@467 1693 return "NULL";
adamc@467 1694 else
adamc@467 1695 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467 1696 }
adamc@467 1697
adamc@311 1698 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311 1699 static uw_Basis_int true = 1;
adamc@311 1700 static uw_Basis_int false = 0;
adamc@282 1701
adamc@311 1702 if (b == uw_Basis_False)
adamc@282 1703 return (char *)&false;
adamc@282 1704 else
adamc@282 1705 return (char *)&true;
adamc@282 1706 }
adamc@284 1707
adamc@311 1708 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284 1709 int len;
adamc@284 1710 char *r;
adamc@284 1711
adamc@311 1712 uw_check_heap(ctx, INTS_MAX);
adamc@666 1713 r = ctx->heap.front;
adamc@284 1714 sprintf(r, "%lld%n", n, &len);
adamc@666 1715 ctx->heap.front += len+1;
adamc@284 1716 return r;
adamc@284 1717 }
adamc@285 1718
adamc@311 1719 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285 1720 int len;
adamc@285 1721 char *r;
adamc@285 1722
adamc@311 1723 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1724 r = ctx->heap.front;
adamc@285 1725 sprintf(r, "%g%n", n, &len);
adamc@666 1726 ctx->heap.front += len+1;
adamc@285 1727 return r;
adamc@285 1728 }
adamc@285 1729
adamc@311 1730 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311 1731 if (b == uw_Basis_False)
adamc@285 1732 return "False";
adamc@285 1733 else
adamc@285 1734 return "True";
adamc@285 1735 }
adamc@288 1736
adamc@436 1737 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436 1738 size_t len;
adamc@436 1739 char *r;
adamc@436 1740 struct tm stm;
adamc@436 1741
adamc@436 1742 if (localtime_r(&t, &stm)) {
adamc@436 1743 uw_check_heap(ctx, TIMES_MAX);
adamc@666 1744 r = ctx->heap.front;
adamc@436 1745 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 1746 ctx->heap.front += len+1;
adamc@436 1747 return r;
adamc@436 1748 } else
adamc@436 1749 return "<Invalid time>";
adamc@436 1750 }
adamc@288 1751
adamc@311 1752 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288 1753 char *endptr;
adamc@311 1754 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288 1755
adamc@288 1756 if (*s != '\0' && *endptr == '\0') {
adamc@311 1757 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288 1758 *r = n;
adamc@288 1759 return r;
adamc@288 1760 } else
adamc@288 1761 return NULL;
adamc@288 1762 }
adamc@289 1763
adamc@311 1764 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289 1765 char *endptr;
adamc@311 1766 uw_Basis_float n = strtod(s, &endptr);
adamc@289 1767
adamc@289 1768 if (*s != '\0' && *endptr == '\0') {
adamc@311 1769 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289 1770 *r = n;
adamc@289 1771 return r;
adamc@289 1772 } else
adamc@289 1773 return NULL;
adamc@289 1774 }
adamc@289 1775
adamc@311 1776 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311 1777 static uw_Basis_bool true = uw_Basis_True;
adamc@311 1778 static uw_Basis_bool false = uw_Basis_False;
adamc@289 1779
adamc@289 1780 if (!strcasecmp (s, "True"))
adamc@289 1781 return &true;
adamc@289 1782 else if (!strcasecmp (s, "False"))
adamc@289 1783 return &false;
adamc@289 1784 else
adamc@289 1785 return NULL;
adamc@289 1786 }
adamc@292 1787
adamc@436 1788 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438 1789 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adamc@436 1790 struct tm stm;
adamc@436 1791
adamc@439 1792 if (dot) {
adamc@439 1793 *dot = 0;
adamc@439 1794 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439 1795 *dot = '.';
adamc@439 1796 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439 1797 *r = mktime(&stm);
adamc@439 1798 return r;
adamc@439 1799 }
adamc@439 1800 else {
adamc@439 1801 *dot = '.';
adamc@439 1802 return NULL;
adamc@439 1803 }
adamc@436 1804 }
adamc@439 1805 else {
adamc@439 1806 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439 1807 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439 1808 *r = mktime(&stm);
adamc@439 1809 return r;
adamc@439 1810 }
adamc@439 1811 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439 1812 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439 1813 *r = mktime(&stm);
adamc@439 1814 return r;
adamc@439 1815 }
adamc@439 1816 else
adamc@439 1817 return NULL;
adamc@439 1818 }
adamc@436 1819 }
adamc@436 1820
adamc@311 1821 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292 1822 char *endptr;
adamc@311 1823 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292 1824
adamc@292 1825 if (*s != '\0' && *endptr == '\0')
adamc@292 1826 return n;
adamc@292 1827 else
adamc@311 1828 uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292 1829 }
adamc@293 1830
adamc@682 1831 #include <errno.h>
adamc@682 1832
adamc@678 1833 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682 1834 unsigned long long n;
adamc@682 1835
adamc@682 1836 if (sscanf(s, "%llu", &n) < 1)
adamc@682 1837 uw_error(ctx, FATAL, "Can't parse channel: %s", s);
adamc@682 1838 else {
adamc@682 1839 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682 1840 return ch;
adamc@682 1841 }
adamc@682 1842 }
adamc@682 1843
adamc@682 1844 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678 1845 char *endptr;
adamc@682 1846 unsigned long n = strtoul(s, &endptr, 10);
adamc@678 1847
adamc@678 1848 if (*s != '\0' && *endptr == '\0')
adamc@678 1849 return n;
adamc@678 1850 else
adamc@682 1851 uw_error(ctx, FATAL, "Can't parse client: %s", s);
adamc@678 1852 }
adamc@678 1853
adamc@311 1854 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293 1855 char *endptr;
adamc@311 1856 uw_Basis_float n = strtod(s, &endptr);
adamc@293 1857
adamc@293 1858 if (*s != '\0' && *endptr == '\0')
adamc@293 1859 return n;
adamc@293 1860 else
adamc@311 1861 uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293 1862 }
adamc@293 1863
adamc@311 1864 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296 1865 if (!strcasecmp(s, "T") || !strcasecmp (s, "True"))
adamc@311 1866 return uw_Basis_True;
adamc@296 1867 else if (!strcasecmp(s, "F") || !strcasecmp (s, "False"))
adamc@311 1868 return uw_Basis_False;
adamc@293 1869 else
adamc@311 1870 uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293 1871 }
adamc@436 1872
adamc@436 1873 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438 1874 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adamc@436 1875 struct tm stm = {};
adamc@436 1876
adamc@438 1877 if (dot) {
adamc@438 1878 *dot = 0;
adamc@438 1879 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438 1880 *dot = '.';
adamc@438 1881 return mktime(&stm);
adamc@438 1882 }
adamc@438 1883 else {
adamc@438 1884 *dot = '.';
adamc@438 1885 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438 1886 }
adamc@438 1887 }
adamc@438 1888 else {
adamc@439 1889 if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439 1890 return mktime(&stm);
adamc@439 1891 else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438 1892 return mktime(&stm);
adamc@438 1893 else
adamc@438 1894 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438 1895 }
adamc@436 1896 }
adamc@457 1897
adamc@463 1898 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463 1899 int len = strlen(c);
adamc@666 1900 char *s = ctx->headers, *p = ctx->outHeaders.start;
adamc@474 1901
adamc@474 1902 while (p = strstr(p, "\nSet-Cookie: ")) {
adamc@474 1903 char *p2;
adamc@474 1904 p += 13;
adamc@474 1905 p2 = strchr(p, '=');
adamc@474 1906
adamc@474 1907 if (p2) {
adamc@474 1908 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474 1909
adamc@474 1910 if (!strncasecmp(p, c, p2 - p)) {
adamc@474 1911 char *ret = uw_malloc(ctx, sz + 1);
adamc@474 1912 memcpy(ret, p2+1, sz);
adamc@474 1913 ret[sz] = 0;
adamc@474 1914 return ret;
adamc@474 1915 }
adamc@474 1916 }
adamc@474 1917 }
adamc@463 1918
adamc@463 1919 while (p = strchr(s, ':')) {
adamc@476 1920 if (!strncasecmp(s, "Cookie: ", 8)) {
adamc@476 1921 p += 2;
adamc@476 1922 while (1) {
adamc@476 1923 if (!strncmp(p, c, len)
adamc@476 1924 && p + len < ctx->headers_end && p[len] == '=')
adamc@476 1925 return p + 1 + len;
adamc@476 1926 else if (p = strchr(p, ';'))
adamc@476 1927 p += 2;
adamc@476 1928 else if ((s = strchr(s, 0)) && s < ctx->headers_end) {
adamc@476 1929 s += 2;
adamc@476 1930 break;
adamc@476 1931 }
adamc@476 1932 else
adamc@476 1933 return NULL;
adamc@476 1934 }
adamc@463 1935 } else {
adamc@463 1936 if ((s = strchr(p, 0)) && s < ctx->headers_end)
adamc@463 1937 s += 2;
adamc@463 1938 else
adamc@463 1939 return NULL;
adamc@463 1940 }
adamc@463 1941 }
adamc@457 1942 }
adamc@462 1943
adamc@466 1944 uw_unit uw_Basis_set_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c, uw_Basis_string v) {
adamc@462 1945 uw_write_header(ctx, "Set-Cookie: ");
adamc@462 1946 uw_write_header(ctx, c);
adamc@462 1947 uw_write_header(ctx, "=");
adamc@462 1948 uw_write_header(ctx, v);
adamc@466 1949 uw_write_header(ctx, "; path=");
adamc@466 1950 uw_write_header(ctx, prefix);
adamc@462 1951 uw_write_header(ctx, "\r\n");
adamc@462 1952
adamc@462 1953 return uw_unit_v;
adamc@462 1954 }
adamc@667 1955
adamc@682 1956 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682 1957 unsigned i;
adamc@682 1958 delta *d;
adamc@671 1959
adamc@682 1960 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682 1961 if (ctx->deltas[i].client == client)
adamc@682 1962 return &ctx->deltas[i];
adamc@671 1963
adamc@682 1964 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@682 1965 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adamc@682 1966 buf_init(&ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682 1967 }
adamc@671 1968
adamc@682 1969 d = &ctx->deltas[ctx->used_deltas++];
adamc@682 1970 d->client = client;
adamc@682 1971 buf_reset(&d->msgs);
adamc@682 1972 return d;
adamc@671 1973 }
adamc@671 1974
adamc@668 1975 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682 1976 if (ctx->client == NULL)
adamc@682 1977 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671 1978
adamc@682 1979 return new_channel(ctx->client);
adamc@668 1980 }
adamc@668 1981
adamc@668 1982 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682 1983 delta *d = allocate_delta(ctx, chn.cli);
adamc@682 1984 size_t len;
adamc@682 1985 int preLen;
adamc@682 1986 char pre[INTS_MAX + 2];
adamc@668 1987
adamc@682 1988 len = strlen(msg);
adamc@682 1989
adamc@682 1990 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682 1991
adamc@682 1992 buf_append(&d->msgs, pre, preLen);
adamc@682 1993 buf_append(&d->msgs, msg, len);
adamc@682 1994 buf_append(&d->msgs, "\n", 1);
adamc@671 1995
adamc@671 1996 return uw_unit_v;
adamc@668 1997 }
adamc@671 1998
adamc@671 1999 int uw_db_commit(uw_context);
adamc@671 2000 int uw_db_rollback(uw_context);
adamc@671 2001
adamc@671 2002 void uw_commit(uw_context ctx) {
adamc@682 2003 unsigned i;
adamc@671 2004
adamc@700 2005 if (uw_db_commit(ctx))
adamc@671 2006 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@682 2007
adamc@682 2008 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682 2009 delta *d = &ctx->deltas[i];
adamc@682 2010 client *c = find_client(d->client);
adamc@682 2011
adamc@682 2012 assert (c != NULL && c->mode == USED);
adamc@682 2013
adamc@685 2014 client_send(c, &d->msgs);
adamc@682 2015 }
adamc@682 2016
adamc@682 2017 if (ctx->client)
adamc@685 2018 release_client(ctx->client);
adamc@671 2019 }
adamc@671 2020
adamc@671 2021 int uw_rollback(uw_context ctx) {
adamc@682 2022 if (ctx->client)
adamc@685 2023 release_client(ctx->client);
adamc@671 2024
adamc@671 2025 return uw_db_rollback(ctx);
adamc@671 2026 }
adamc@683 2027
adamc@683 2028
adamc@683 2029 // "Garbage collection"
adamc@683 2030
adamc@683 2031 void uw_expunger(uw_context ctx, uw_Basis_client cli);
adamc@683 2032
adamc@683 2033 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli) {
adamc@683 2034 int r = setjmp(ctx->jmp_buf);
adamc@683 2035
adamc@684 2036 if (r == 0) {
adamc@684 2037 if (uw_db_begin(ctx))
adamc@684 2038 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@683 2039 uw_expunger(ctx, cli);
adamc@684 2040 if (uw_db_commit(ctx))
adamc@684 2041 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@684 2042 }
adamc@683 2043
adamc@683 2044 return r;
adamc@683 2045 }
adamc@683 2046
adamc@683 2047 void uw_prune_clients(uw_context ctx) {
adamc@683 2048 client *c, *next, *prev = NULL;
adamc@683 2049 time_t cutoff;
adamc@683 2050
adamc@683 2051 cutoff = time(NULL) - uw_timeout;
adamc@683 2052
adamc@683 2053 pthread_mutex_lock(&clients_mutex);
adamc@683 2054
adamc@683 2055 for (c = clients_used; c; c = next) {
adamc@683 2056 next = c->next;
adamc@683 2057 pthread_mutex_lock(&c->lock);
adamc@685 2058 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683 2059 failure_kind fk = UNLIMITED_RETRY;
adamc@683 2060 if (prev)
adamc@683 2061 prev->next = next;
adamc@683 2062 else
adamc@683 2063 clients_used = next;
adamc@684 2064 uw_reset(ctx);
adamc@683 2065 while (fk == UNLIMITED_RETRY) {
adamc@683 2066 fk = uw_expunge(ctx, c->id);
adamc@684 2067 if (fk == UNLIMITED_RETRY) {
adamc@684 2068 uw_db_rollback(ctx);
adamc@684 2069 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683 2070 }
adamc@683 2071 }
adamc@684 2072 if (fk == SUCCESS)
adamc@684 2073 free_client(c);
adamc@684 2074 else {
adamc@684 2075 uw_db_rollback(ctx);
adamc@683 2076 printf("Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@684 2077 }
adamc@683 2078 }
adamc@683 2079 else
adamc@683 2080 prev = c;
adamc@683 2081 pthread_mutex_unlock(&c->lock);
adamc@683 2082 }
adamc@683 2083
adamc@683 2084 pthread_mutex_unlock(&clients_mutex);
adamc@683 2085 }
adamc@687 2086
adamc@687 2087 void uw_initializer(uw_context ctx);
adamc@687 2088
adamc@687 2089 failure_kind uw_initialize(uw_context ctx) {
adamc@687 2090 int r = setjmp(ctx->jmp_buf);
adamc@687 2091
adamc@687 2092 if (r == 0) {
adamc@687 2093 if (uw_db_begin(ctx))
adamc@687 2094 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@687 2095 uw_initializer(ctx);
adamc@687 2096 if (uw_db_commit(ctx))
adamc@687 2097 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687 2098 }
adamc@687 2099
adamc@687 2100 return r;
adamc@687 2101 }
adamc@717 2102
adamc@717 2103 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@717 2104 return s;
adamc@717 2105 }
adamc@734 2106
adamc@734 2107 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734 2108 return s ? s : "";
adamc@734 2109 }
adamc@734 2110
adamc@734 2111 extern int uw_hash_blocksize;
adamc@734 2112
adamc@734 2113 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734 2114 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734 2115 int i;
adamc@734 2116
adamc@734 2117 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734 2118 sprintf(&r[2*i], "%.02X", ((unsigned char *)sig)[i]);
adamc@734 2119
adamc@734 2120 return r;
adamc@734 2121 }
adamc@734 2122
adamc@734 2123 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@734 2124 return uw_cookie_sig(ctx);
adamc@734 2125 }
adamc@737 2126
adamc@737 2127 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737 2128 return f.name;
adamc@737 2129 }
adamc@737 2130
adamc@737 2131 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737 2132 return f.data;
adamc@737 2133 }