annotate src/c/urweb.c @ 1031:5dccff15fa62

Decision status placeholder
author Adam Chlipala <adamc@hcoop.net>
date Mon, 02 Nov 2009 15:54:22 -0500
parents be1aec7333a5
children dcc6093e9575
rev   line source
adamc@741 1 #define _XOPEN_SOURCE 500
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@741 11 #include <ctype.h>
adamc@102 12
adamc@667 13 #include <pthread.h>
adamc@667 14
adamc@102 15 #include "types.h"
adamc@102 16
adamc@311 17 uw_unit uw_unit_v = {};
adamc@102 18
adamc@667 19
adamc@667 20 // Socket extras
adamc@667 21
adamc@863 22 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667 23 while (len > 0) {
adamc@856 24 ssize_t n = send(sock, buf, len, 0);
adamc@856 25
adamc@856 26 if (n < 0)
adamc@856 27 return n;
adamc@856 28
adamc@856 29 buf += n;
adamc@856 30 len -= n;
adamc@856 31 }
adamc@856 32
adamc@856 33 return 0;
adamc@856 34 }
adamc@856 35
adamc@856 36 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856 37 while (len > 0) {
adamc@856 38 ssize_t n = write(fd, buf, len);
adamc@667 39
adamc@667 40 if (n < 0)
adamc@667 41 return n;
adamc@667 42
adamc@667 43 buf += n;
adamc@667 44 len -= n;
adamc@667 45 }
adamc@667 46
adamc@667 47 return 0;
adamc@667 48 }
adamc@667 49
adamc@667 50
adamc@667 51 // Buffers
adamc@667 52
adamc@667 53 typedef struct {
adamc@667 54 char *start, *front, *back;
adamc@667 55 } buf;
adamc@667 56
adamc@667 57 static void buf_init(buf *b, size_t s) {
adamc@667 58 b->front = b->start = malloc(s);
adamc@667 59 b->back = b->front + s;
adamc@667 60 }
adamc@667 61
adamc@667 62 static void buf_free(buf *b) {
adamc@667 63 free(b->start);
adamc@667 64 }
adamc@667 65
adamc@667 66 static void buf_reset(buf *b) {
adamc@667 67 b->front = b->start;
adamc@667 68 }
adamc@667 69
adamc@667 70 static void buf_check(buf *b, size_t extra) {
adamc@667 71 if (b->back - b->front < extra) {
adamc@667 72 size_t desired = b->front - b->start + extra, next;
adamc@667 73 char *new_heap;
adamc@667 74
adamc@667 75 next = b->back - b->start;
adamc@667 76 if (next == 0)
adamc@667 77 next = 1;
adamc@667 78 for (; next < desired; next *= 2);
adamc@667 79
adamc@667 80 new_heap = realloc(b->start, next);
adamc@667 81 b->front = new_heap + (b->front - b->start);
adamc@667 82 b->back = new_heap + next;
adamc@667 83 b->start = new_heap;
adamc@667 84 }
adamc@667 85 }
adamc@667 86
adamc@667 87 static size_t buf_used(buf *b) {
adamc@667 88 return b->front - b->start;
adamc@667 89 }
adamc@667 90
adamc@667 91 static size_t buf_avail(buf *b) {
adamc@667 92 return b->back - b->start;
adamc@667 93 }
adamc@667 94
adamc@668 95 static void buf_append(buf *b, const char *s, size_t len) {
adamc@672 96 buf_check(b, len+1);
adamc@668 97 memcpy(b->front, s, len);
adamc@668 98 b->front += len;
adamc@672 99 *b->front = 0;
adamc@668 100 }
adamc@667 101
adamc@668 102
adamc@672 103 // Persistent state types
adamc@667 104
adamc@667 105 typedef enum { UNUSED, USED } usage;
adamc@667 106
adamc@667 107 typedef struct client {
adamc@682 108 unsigned id;
adamc@667 109 usage mode;
adamc@682 110 int pass;
adamc@682 111 struct client *next;
adamc@689 112 pthread_mutex_t lock, pull_lock;
adamc@682 113 buf msgs;
adamc@682 114 int sock;
adamc@863 115 int (*send)(int sockfd, const void *buf, ssize_t len);
adamc@863 116 int (*close)(int fd);
adamc@682 117 time_t last_contact;
adamc@682 118 unsigned n_channels;
adamc@685 119 unsigned refcount;
adamc@667 120 } client;
adamc@667 121
adamc@672 122
adamc@672 123 // Persistent client state
adamc@672 124
adamc@682 125 static client **clients, *clients_free, *clients_used;
adamc@682 126 static unsigned n_clients;
adamc@667 127
adamc@667 128 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@667 129
adamc@682 130 static client *new_client() {
adamc@667 131 client *c;
adamc@667 132
adamc@667 133 pthread_mutex_lock(&clients_mutex);
adamc@667 134
adamc@667 135 if (clients_free) {
adamc@667 136 c = clients_free;
adamc@682 137 clients_free = clients_free->next;
adamc@667 138 }
adamc@667 139 else {
adamc@667 140 ++n_clients;
adamc@667 141 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667 142 c = malloc(sizeof(client));
adamc@667 143 c->id = n_clients-1;
adamc@682 144 pthread_mutex_init(&c->lock, NULL);
adamc@689 145 pthread_mutex_init(&c->pull_lock, NULL);
adamc@682 146 buf_init(&c->msgs, 0);
adamc@667 147 clients[n_clients-1] = c;
adamc@667 148 }
adamc@667 149
adamc@682 150 pthread_mutex_lock(&c->lock);
adamc@667 151 c->mode = USED;
adamc@682 152 c->pass = rand();
adamc@682 153 c->sock = -1;
adamc@682 154 c->last_contact = time(NULL);
adamc@682 155 buf_reset(&c->msgs);
adamc@682 156 c->n_channels = 0;
adamc@685 157 c->refcount = 0;
adamc@682 158 pthread_mutex_unlock(&c->lock);
adamc@682 159
adamc@682 160 c->next = clients_used;
adamc@682 161 clients_used = c;
adamc@667 162
adamc@667 163 pthread_mutex_unlock(&clients_mutex);
adamc@667 164
adamc@667 165 return c;
adamc@667 166 }
adamc@667 167
adamc@685 168 static void use_client(client *c) {
adamc@685 169 pthread_mutex_lock(&c->lock);
adamc@685 170 ++c->refcount;
adamc@685 171 pthread_mutex_unlock(&c->lock);
adamc@689 172 pthread_mutex_lock(&c->pull_lock);
adamc@685 173 }
adamc@685 174
adamc@685 175 static void release_client(client *c) {
adamc@689 176 pthread_mutex_unlock(&c->pull_lock);
adamc@685 177 pthread_mutex_lock(&c->lock);
adamc@685 178 --c->refcount;
adamc@685 179 pthread_mutex_unlock(&c->lock);
adamc@689 180
adamc@685 181 }
adamc@685 182
adamc@856 183 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adamc@667 184
adamc@682 185 static client *find_client(unsigned id) {
adamc@667 186 client *c;
adamc@667 187
adamc@667 188 pthread_mutex_lock(&clients_mutex);
adamc@667 189
adamc@667 190 if (id >= n_clients) {
adamc@667 191 pthread_mutex_unlock(&clients_mutex);
adamc@668 192 return NULL;
adamc@667 193 }
adamc@667 194
adamc@667 195 c = clients[id];
adamc@667 196
adamc@668 197 pthread_mutex_unlock(&clients_mutex);
adamc@668 198 return c;
adamc@668 199 }
adamc@668 200
adamc@856 201 static char *on_success = "HTTP/1.1 200 OK\r\n";
adamc@856 202
adamc@856 203 void uw_set_on_success(char *s) {
adamc@856 204 on_success = s;
adamc@856 205 }
adamc@856 206
adamc@863 207 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863 208 int (*send)(int sockfd, const void *buf, ssize_t len),
adamc@864 209 int (*close)(int fd),
adamc@864 210 void *logger_data, uw_logger log_error) {
adamc@682 211 client *c = find_client(id);
adamc@668 212
adamc@668 213 if (c == NULL) {
adamc@667 214 close(sock);
adamc@864 215 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667 216 return;
adamc@667 217 }
adamc@667 218
adamc@682 219 pthread_mutex_lock(&c->lock);
adamc@671 220
adamc@682 221 if (c->mode != USED) {
adamc@682 222 pthread_mutex_unlock(&c->lock);
adamc@667 223 close(sock);
adamc@864 224 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667 225 return;
adamc@667 226 }
adamc@667 227
adamc@682 228 if (pass != c->pass) {
adamc@682 229 pthread_mutex_unlock(&c->lock);
adamc@682 230 close(sock);
adamc@864 231 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682 232 return;
adamc@667 233 }
adamc@667 234
adamc@682 235 if (c->sock != -1) {
adamc@863 236 c->close(c->sock);
adamc@682 237 c->sock = -1;
adamc@682 238 }
adamc@667 239
adamc@682 240 c->last_contact = time(NULL);
adamc@682 241
adamc@682 242 if (buf_used(&c->msgs) > 0) {
adamc@863 243 send(sock, on_success, strlen(on_success));
adamc@863 244 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863 245 send(sock, c->msgs.start, buf_used(&c->msgs));
adamc@682 246 buf_reset(&c->msgs);
adamc@667 247 close(sock);
adamc@667 248 }
adamc@863 249 else {
adamc@682 250 c->sock = sock;
adamc@863 251 c->send = send;
adamc@863 252 c->close = close;
adamc@863 253 }
adamc@667 254
adamc@682 255 pthread_mutex_unlock(&c->lock);
adamc@667 256 }
adamc@667 257
adamc@682 258 static void free_client(client *c) {
adamc@682 259 c->mode = UNUSED;
adamc@682 260 c->pass = -1;
adamc@667 261
adamc@682 262 c->next = clients_free;
adamc@682 263 clients_free = c;
adamc@667 264 }
adamc@667 265
adamc@682 266 static uw_Basis_channel new_channel(client *c) {
adamc@682 267 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668 268 return ch;
adamc@668 269 }
adamc@668 270
adamc@685 271 static void client_send(client *c, buf *msg) {
adamc@685 272 pthread_mutex_lock(&c->lock);
adamc@671 273
adamc@682 274 if (c->sock != -1) {
adamc@863 275 c->send(c->sock, on_success, strlen(on_success));
adamc@863 276 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863 277 c->send(c->sock, msg->start, buf_used(msg));
adamc@863 278 c->close(c->sock);
adamc@682 279 c->sock = -1;
adamc@682 280 } else
adamc@682 281 buf_append(&c->msgs, msg->start, buf_used(msg));
adamc@671 282
adamc@685 283 pthread_mutex_unlock(&c->lock);
adamc@668 284 }
adamc@668 285
adamc@668 286
adamc@668 287 // Global entry points
adamc@668 288
adamc@866 289 extern void uw_client_init();
adamc@866 290
adamc@668 291 void uw_global_init() {
adamc@668 292 srand(time(NULL) ^ getpid());
adamc@668 293
adamc@668 294 clients = malloc(0);
adamc@866 295
adamc@866 296 uw_client_init();
adamc@668 297 }
adamc@668 298
adamc@668 299
adamc@667 300 // Single-request state
adamc@667 301
adamc@167 302 #define ERROR_BUF_LEN 1024
adamc@167 303
adamc@323 304 typedef struct regions {
adamc@323 305 struct regions *next;
adamc@323 306 } regions;
adamc@323 307
adamc@425 308 typedef struct {
adamc@425 309 void (*func)(void*);
adamc@425 310 void *arg;
adamc@425 311 } cleanup;
adamc@425 312
adamc@671 313 typedef struct {
adamc@682 314 unsigned client;
adamc@671 315 buf msgs;
adamc@682 316 } delta;
adamc@671 317
adamc@737 318 typedef enum {
adamc@759 319 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737 320 } input_kind;
adamc@737 321
adamc@756 322 typedef struct input {
adamc@737 323 input_kind kind;
adamc@737 324 union {
adamc@737 325 char *normal;
adamc@739 326 uw_Basis_file file;
adamc@756 327 struct {
adamc@759 328 struct input *fields, *parent;
adamc@756 329 } subform;
adamc@759 330 struct {
adamc@759 331 struct input *entries, *parent;
adamc@759 332 } subforms;
adamc@759 333 struct {
adamc@759 334 struct input *fields, *next, *parent;
adamc@759 335 } entry;
adamc@737 336 } data;
adamc@737 337 } input;
adamc@737 338
adamc@771 339 typedef struct {
adamc@771 340 void *data;
adamc@771 341 uw_callback commit, rollback, free;
adamc@771 342 } transactional;
adamc@771 343
adamc@311 344 struct uw_context {
adamc@854 345 char *(*get_header)(void *, const char *);
adamc@854 346 void *get_header_data;
adamc@457 347
adamc@666 348 buf outHeaders, page, heap, script;
adamc@921 349 int returning_blob;
adamc@759 350 input *inputs, *subinputs, *cur_container;
adamc@756 351 size_t n_subinputs, used_subinputs;
adamc@167 352
adamc@565 353 int source_count;
adamc@562 354
adamc@272 355 void *db;
adamc@272 356
adamc@167 357 jmp_buf jmp_buf;
adamc@167 358
adamc@323 359 regions *regions;
adamc@323 360
adamc@425 361 cleanup *cleanup, *cleanup_front, *cleanup_back;
adamc@425 362
adamc@667 363 const char *script_header, *url_prefix;
adamc@643 364
adamc@736 365 int needs_push, needs_sig;
adamc@693 366
adamc@682 367 size_t n_deltas, used_deltas;
adamc@682 368 delta *deltas;
adamc@671 369
adamc@673 370 int timeout;
adamc@673 371
adamc@682 372 client *client;
adamc@682 373
adamc@771 374 transactional *transactionals;
adamc@771 375 size_t n_transactionals, used_transactionals;
adamc@771 376
adamc@167 377 char error_message[ERROR_BUF_LEN];
adamc@117 378 };
adamc@117 379
adamc@683 380 extern int uw_inputs_len, uw_timeout;
adamc@144 381
adamc@687 382 uw_context uw_init() {
adamc@311 383 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136 384
adamc@854 385 ctx->get_header = NULL;
adamc@854 386 ctx->get_header_data = NULL;
adamc@457 387
adamc@687 388 buf_init(&ctx->outHeaders, 0);
adamc@687 389 buf_init(&ctx->page, 0);
adamc@921 390 ctx->returning_blob = 0;
adamc@687 391 buf_init(&ctx->heap, 0);
adamc@698 392 buf_init(&ctx->script, 1);
adamc@667 393 ctx->script.start[0] = 0;
adamc@136 394
adamc@737 395 ctx->inputs = calloc(uw_inputs_len, sizeof(input));
adamc@759 396 ctx->cur_container = NULL;
adamc@756 397 ctx->subinputs = malloc(0);
adamc@756 398 ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144 399
adamc@272 400 ctx->db = NULL;
adamc@272 401
adamc@323 402 ctx->regions = NULL;
adamc@323 403
adamc@425 404 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425 405
adamc@643 406 ctx->script_header = "";
adamc@667 407 ctx->url_prefix = "/";
adamc@693 408 ctx->needs_push = 0;
adamc@736 409 ctx->needs_sig = 0;
adamc@643 410
adamc@167 411 ctx->error_message[0] = 0;
adamc@167 412
adamc@565 413 ctx->source_count = 0;
adamc@562 414
adamc@682 415 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671 416 ctx->deltas = malloc(0);
adamc@671 417
adamc@673 418 ctx->timeout = uw_timeout;
adamc@673 419
adamc@700 420 ctx->client = NULL;
adamc@700 421
adamc@700 422 ctx->error_message[0] = 0;
adamc@700 423
adamc@771 424 ctx->transactionals = malloc(0);
adamc@771 425 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771 426
adamc@117 427 return ctx;
adamc@106 428 }
adamc@106 429
adamc@311 430 void uw_set_db(uw_context ctx, void *db) {
adamc@272 431 ctx->db = db;
adamc@272 432 }
adamc@272 433
adamc@311 434 void *uw_get_db(uw_context ctx) {
adamc@272 435 return ctx->db;
adamc@272 436 }
adamc@272 437
adamc@311 438 void uw_free(uw_context ctx) {
adamc@671 439 size_t i;
adamc@671 440
adamc@666 441 buf_free(&ctx->outHeaders);
adamc@666 442 buf_free(&ctx->script);
adamc@666 443 buf_free(&ctx->page);
adamc@666 444 buf_free(&ctx->heap);
adamc@144 445 free(ctx->inputs);
adamc@756 446 free(ctx->subinputs);
adamc@425 447 free(ctx->cleanup);
adamc@771 448 free(ctx->transactionals);
adamc@671 449
adamc@682 450 for (i = 0; i < ctx->n_deltas; ++i)
adamc@671 451 buf_free(&ctx->deltas[i].msgs);
adamc@671 452
adamc@136 453 free(ctx);
adamc@136 454 }
adamc@136 455
adamc@562 456 void uw_reset_keep_error_message(uw_context ctx) {
adamc@756 457 size_t i;
adamc@756 458
adamc@666 459 buf_reset(&ctx->outHeaders);
adamc@666 460 buf_reset(&ctx->script);
adamc@667 461 ctx->script.start[0] = 0;
adamc@666 462 buf_reset(&ctx->page);
adamc@921 463 ctx->returning_blob = 0;
adamc@666 464 buf_reset(&ctx->heap);
adamc@323 465 ctx->regions = NULL;
adamc@425 466 ctx->cleanup_front = ctx->cleanup;
adamc@565 467 ctx->source_count = 0;
adamc@682 468 ctx->used_deltas = 0;
adamc@682 469 ctx->client = NULL;
adamc@759 470 ctx->cur_container = NULL;
adamc@771 471 ctx->used_transactionals = 0;
adamc@167 472 }
adamc@167 473
adamc@562 474 void uw_reset_keep_request(uw_context ctx) {
adamc@562 475 uw_reset_keep_error_message(ctx);
adamc@562 476 ctx->error_message[0] = 0;
adamc@167 477 }
adamc@167 478
adamc@311 479 void uw_reset(uw_context ctx) {
adamc@311 480 uw_reset_keep_request(ctx);
adamc@737 481 memset(ctx->inputs, 0, uw_inputs_len * sizeof(input));
adamc@756 482 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adamc@756 483 ctx->used_subinputs = 0;
adamc@144 484 }
adamc@144 485
adamc@311 486 void uw_db_init(uw_context);
adamc@311 487 void uw_handle(uw_context, char *);
adamc@167 488
adamc@311 489 failure_kind uw_begin_init(uw_context ctx) {
adamc@272 490 int r = setjmp(ctx->jmp_buf);
adamc@272 491
adamc@272 492 if (r == 0)
adamc@311 493 uw_db_init(ctx);
adamc@272 494
adamc@272 495 return r;
adamc@272 496 }
adamc@272 497
adamc@854 498 void uw_set_headers(uw_context ctx, char *(*get_header)(void *, const char *), void *get_header_data) {
adamc@854 499 ctx->get_header = get_header;
adamc@854 500 ctx->get_header_data = get_header_data;
adamc@742 501 }
adamc@742 502
adamc@671 503 int uw_db_begin(uw_context);
adamc@167 504
adamc@801 505 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801 506 va_list ap;
adamc@801 507 va_start(ap, fmt);
adamc@801 508
adamc@801 509 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801 510 }
adamc@801 511
adamc@311 512 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425 513 cleanup *cl;
adamc@425 514
adamc@167 515 va_list ap;
adamc@167 516 va_start(ap, fmt);
adamc@167 517
adamc@167 518 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167 519
adamc@425 520 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425 521 cl->func(cl->arg);
adamc@425 522
adamc@425 523 ctx->cleanup_front = ctx->cleanup;
adamc@425 524
adamc@190 525 longjmp(ctx->jmp_buf, fk);
adamc@167 526 }
adamc@167 527
adamc@425 528 void uw_push_cleanup(uw_context ctx, void (*func)(void *), void *arg) {
adamc@425 529 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425 530 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425 531 if (len == 0)
adamc@425 532 newLen = 1;
adamc@425 533 else
adamc@428 534 newLen = len * 2;
adamc@470 535 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425 536 ctx->cleanup_front = ctx->cleanup + len;
adamc@425 537 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425 538 }
adamc@425 539
adamc@425 540 ctx->cleanup_front->func = func;
adamc@425 541 ctx->cleanup_front->arg = arg;
adamc@425 542 ++ctx->cleanup_front;
adamc@425 543 }
adamc@425 544
adamc@682 545 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adamc@854 546 return ctx->get_header(ctx->get_header_data, h);
adamc@682 547 }
adamc@682 548
adamc@682 549 void uw_login(uw_context ctx) {
adamc@693 550 if (ctx->needs_push) {
adamc@682 551 char *id_s, *pass_s;
adamc@682 552
adamc@682 553 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682 554 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682 555 unsigned id = atoi(id_s);
adamc@682 556 int pass = atoi(pass_s);
adamc@682 557 client *c = find_client(id);
adamc@682 558
adamc@682 559 if (c == NULL)
adamc@682 560 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", id_s, pass_s);
adamc@682 561 else {
adamc@685 562 use_client(c);
adamc@682 563 ctx->client = c;
adamc@682 564
adamc@682 565 if (c->mode != USED)
adamc@682 566 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682 567 if (c->pass != pass)
adamc@682 568 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682 569 }
adamc@682 570 } else {
adamc@682 571 client *c = new_client();
adamc@685 572 use_client(c);
adamc@682 573 ctx->client = c;
adamc@864 574 }
adamc@682 575 }
adamc@682 576 }
adamc@682 577
adamc@671 578 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671 579 int r = setjmp(ctx->jmp_buf);
adamc@671 580
adamc@671 581 if (r == 0) {
adamc@671 582 if (uw_db_begin(ctx))
adamc@671 583 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adamc@682 584
adamc@671 585 uw_handle(ctx, path);
adamc@671 586 }
adamc@671 587
adamc@671 588 return r;
adamc@671 589 }
adamc@671 590
adamc@772 591 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682 592 if (ctx->client == NULL)
adamc@682 593 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682 594
adamc@682 595 return ctx->client->id;
adamc@682 596 }
adamc@682 597
adamc@425 598 void uw_pop_cleanup(uw_context ctx) {
adamc@425 599 if (ctx->cleanup_front == ctx->cleanup)
adamc@425 600 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425 601
adamc@425 602 --ctx->cleanup_front;
adamc@425 603 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425 604 }
adamc@425 605
adamc@311 606 char *uw_error_message(uw_context ctx) {
adamc@167 607 return ctx->error_message;
adamc@167 608 }
adamc@167 609
adamc@737 610 extern int uw_input_num(const char*);
adamc@144 611
adamc@759 612 static input *INP(uw_context ctx) {
adamc@759 613 if (ctx->cur_container == NULL)
adamc@759 614 return ctx->inputs;
adamc@759 615 else if (ctx->cur_container->kind == SUBFORM)
adamc@759 616 return ctx->cur_container->data.subform.fields;
adamc@759 617 else if (ctx->cur_container->kind == ENTRY)
adamc@759 618 return ctx->cur_container->data.entry.fields;
adamc@759 619 else
adamc@760 620 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759 621 }
adamc@759 622
adamc@760 623 static void adjust_pointer(input **ptr, input *old_start, input *new_start, size_t len) {
adamc@760 624 if (*ptr != NULL && *ptr >= old_start && *ptr < old_start + len)
adamc@760 625 *ptr += new_start - old_start;
adamc@760 626 }
adamc@760 627
adamc@760 628 static void adjust_input(input *x, input *old_start, input *new_start, size_t len) {
adamc@759 629 switch (x->kind) {
adamc@759 630 case SUBFORM:
adamc@760 631 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760 632 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759 633 break;
adamc@759 634 case SUBFORMS:
adamc@760 635 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760 636 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759 637 break;
adamc@759 638 case ENTRY:
adamc@760 639 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760 640 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760 641 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@759 642 }
adamc@759 643 }
adamc@759 644
adamc@759 645 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759 646 size_t i;
adamc@759 647 input *r;
adamc@759 648
adamc@759 649 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@759 650 input *new_subinputs = realloc(ctx->subinputs, sizeof(input) * (ctx->used_subinputs + len));
adamc@759 651 size_t offset = new_subinputs - ctx->subinputs;
adamc@759 652
adamc@760 653 if (ctx->subinputs != new_subinputs) {
adamc@760 654 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760 655 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760 656 for (i = 0; i < uw_inputs_len; ++i)
adamc@760 657 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760 658
adamc@760 659 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760 660
adamc@760 661 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760 662 ctx->subinputs = new_subinputs;
adamc@760 663 }
adamc@759 664 }
adamc@759 665
adamc@759 666 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759 667
adamc@759 668 for (i = 0; i < len; ++i)
adamc@759 669 ctx->subinputs[ctx->used_subinputs++].kind = UNUSED;
adamc@759 670
adamc@759 671 return r;
adamc@759 672 }
adamc@756 673
adamc@801 674 int uw_set_input(uw_context ctx, const char *name, char *value) {
adamc@756 675 if (!strcasecmp(name, ".b")) {
adamc@756 676 int n = uw_input_num(value);
adamc@756 677 input *inps;
adamc@756 678
adamc@801 679 if (n < 0) {
adamc@801 680 uw_set_error(ctx, "Bad subform name %s", value);
adamc@801 681 return -1;
adamc@801 682 }
adamc@801 683
adamc@801 684 if (n >= uw_inputs_len) {
adamc@801 685 uw_set_error(ctx, "For subform name %s, index %d is out of range", value, n);
adamc@801 686 return -1;
adamc@801 687 }
adamc@756 688
adamc@759 689 inps = check_input_space(ctx, uw_inputs_len);
adamc@759 690
adamc@759 691 INP(ctx)[n].kind = SUBFORM;
adamc@759 692 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759 693 INP(ctx)[n].data.subform.fields = inps;
adamc@759 694 ctx->cur_container = &INP(ctx)[n];
adamc@756 695 } else if (!strcasecmp(name, ".e")) {
adamc@756 696 input *tmp;
adamc@756 697
adamc@801 698 if (ctx->cur_container == NULL) {
adamc@801 699 uw_set_error(ctx, "Unmatched subform closer");
adamc@801 700 return -1;
adamc@801 701 }
adamc@756 702
adamc@759 703 tmp = ctx->cur_container;
adamc@759 704 switch (tmp->kind) {
adamc@759 705 case SUBFORM:
adamc@759 706 ctx->cur_container = tmp->data.subform.parent;
adamc@759 707 tmp->data.subform.parent = NULL;
adamc@759 708 break;
adamc@759 709 case SUBFORMS:
adamc@759 710 ctx->cur_container = tmp->data.subforms.parent;
adamc@759 711 tmp->data.subforms.parent = NULL;
adamc@759 712 break;
adamc@759 713 case ENTRY:
adamc@759 714 ctx->cur_container = tmp->data.entry.parent;
adamc@759 715 break;
adamc@759 716 default:
adamc@801 717 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801 718 return -1;
adamc@759 719 }
adamc@759 720 } else if (!strcasecmp(name, ".s")) {
adamc@759 721 int n = uw_input_num(value);
adamc@759 722
adamc@801 723 if (n < 0) {
adamc@801 724 uw_set_error(ctx, "Bad subforms name %s", value);
adamc@801 725 return -1;
adamc@801 726 }
adamc@801 727
adamc@801 728 if (n >= uw_inputs_len) {
adamc@801 729 uw_set_error(ctx, "For subforms name %s, index %d is out of range", value, n);
adamc@801 730 return -1;
adamc@801 731 }
adamc@759 732
adamc@759 733 INP(ctx)[n].kind = SUBFORMS;
adamc@759 734 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759 735 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759 736 ctx->cur_container = &INP(ctx)[n];
adamc@759 737 } else if (!strcasecmp(name, ".i")) {
adamc@759 738 input *inps;
adamc@759 739
adamc@801 740 if (!ctx->cur_container) {
adamc@801 741 uw_set_error(ctx, "New entry without container");
adamc@801 742 return -1;
adamc@801 743 }
adamc@801 744
adamc@801 745 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801 746 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801 747 return -1;
adamc@801 748 }
adamc@759 749
adamc@759 750 inps = check_input_space(ctx, uw_inputs_len + 1);
adamc@759 751
adamc@759 752 inps->kind = ENTRY;
adamc@759 753 inps->data.entry.parent = ctx->cur_container;
adamc@759 754 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759 755 ctx->cur_container->data.subforms.entries = inps;
adamc@759 756
adamc@759 757 inps->data.entry.fields = inps+1;
adamc@759 758 ctx->cur_container = inps;
adamc@756 759 } else {
adamc@756 760 int n = uw_input_num(name);
adamc@756 761
adamc@801 762 if (n < 0) {
adamc@801 763 uw_set_error(ctx, "Bad input name %s", name);
adamc@801 764 return -1;
adamc@801 765 }
adamc@801 766
adamc@801 767 if (n >= uw_inputs_len) {
adamc@801 768 uw_set_error(ctx, "For input name %s, index %d is out of range", name, n);
adamc@801 769 return -1;
adamc@801 770 }
adamc@756 771
adamc@756 772 INP(ctx)[n].kind = NORMAL;
adamc@756 773 INP(ctx)[n].data.normal = value;
adamc@756 774 }
adamc@801 775
adamc@801 776 return 0;
adamc@144 777 }
adamc@144 778
adamc@311 779 char *uw_get_input(uw_context ctx, int n) {
adamc@169 780 if (n < 0)
adamc@311 781 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311 782 if (n >= uw_inputs_len)
adamc@311 783 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737 784
adamc@756 785 switch (INP(ctx)[n].kind) {
adamc@737 786 case UNSET:
adamc@737 787 return NULL;
adamc@739 788 case FIL:
adamc@739 789 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756 790 case SUBFORM:
adamc@756 791 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759 792 case SUBFORMS:
adamc@759 793 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759 794 case ENTRY:
adamc@759 795 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737 796 case NORMAL:
adamc@756 797 return INP(ctx)[n].data.normal;
adamc@737 798 default:
adamc@737 799 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 800 }
adamc@138 801 }
adamc@138 802
adamc@311 803 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190 804 if (n < 0)
adamc@311 805 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311 806 if (n >= uw_inputs_len)
adamc@311 807 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737 808
adamc@756 809 switch (INP(ctx)[n].kind) {
adamc@737 810 case UNSET:
adamc@737 811 return "";
adamc@739 812 case FIL:
adamc@739 813 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756 814 case SUBFORM:
adamc@756 815 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759 816 case SUBFORMS:
adamc@759 817 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759 818 case ENTRY:
adamc@759 819 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737 820 case NORMAL:
adamc@756 821 return INP(ctx)[n].data.normal;
adamc@737 822 default:
adamc@737 823 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 824 }
adamc@737 825 }
adamc@737 826
adamc@801 827 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@737 828 int n = uw_input_num(name);
adamc@737 829
adamc@801 830 if (n < 0) {
adamc@801 831 uw_set_error(ctx, "Bad file input name %s", name);
adamc@801 832 return -1;
adamc@801 833 }
adamc@801 834
adamc@801 835 if (n >= uw_inputs_len) {
adamc@801 836 uw_set_error(ctx, "For file input name %s, index %d is out of range", name, n);
adamc@801 837 return -1;
adamc@801 838 }
adamc@737 839
adamc@739 840 ctx->inputs[n].kind = FIL;
adamc@739 841 ctx->inputs[n].data.file = f;
adamc@801 842
adamc@801 843 return 0;
adamc@737 844 }
adamc@737 845
adamc@739 846 void *uw_malloc(uw_context ctx, size_t len);
adamc@739 847
adamc@760 848
adamc@760 849 static void parents(input *inp) {
adamc@760 850 printf("Stack: %p\n", inp);
adamc@760 851 while (inp) {
adamc@760 852 switch (inp->kind) {
adamc@760 853 case NORMAL:
adamc@760 854 printf("Normal(%p)\n", inp);
adamc@760 855 break;
adamc@760 856 case FIL:
adamc@760 857 printf("File(%p)\n", inp);
adamc@760 858 break;
adamc@760 859 case SUBFORM:
adamc@760 860 printf("Subform; fields = %p\n", inp->data.subform.fields);
adamc@760 861 inp = inp->data.subform.parent;
adamc@760 862 break;
adamc@760 863 case SUBFORMS:
adamc@760 864 printf("Subforms; entries = %p\n", inp->data.subforms.entries);
adamc@760 865 inp = inp->data.subforms.parent;
adamc@760 866 break;
adamc@760 867 case ENTRY:
adamc@760 868 printf("Entry; fields = %p; next = %p\n", inp->data.entry.fields, inp->data.entry.next);
adamc@760 869 inp = inp->data.entry.parent;
adamc@760 870 break;
adamc@760 871 default:
adamc@760 872 inp = NULL;
adamc@760 873 }
adamc@760 874 }
adamc@760 875 }
adamc@760 876
adamc@739 877 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737 878 if (n < 0)
adamc@737 879 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@737 880 if (n >= uw_inputs_len)
adamc@737 881 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737 882
adamc@756 883 switch (INP(ctx)[n].kind) {
adamc@737 884 case UNSET:
adamc@737 885 {
adamc@739 886 char *data = uw_malloc(ctx, 0);
adamc@740 887 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739 888 return f;
adamc@737 889 }
adamc@739 890 case FIL:
adamc@756 891 return INP(ctx)[n].data.file;
adamc@737 892 case NORMAL:
adamc@737 893 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756 894 case SUBFORM:
adamc@756 895 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759 896 case SUBFORMS:
adamc@759 897 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759 898 case ENTRY:
adamc@759 899 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737 900 default:
adamc@737 901 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 902 }
adamc@190 903 }
adamc@190 904
adamc@756 905 void uw_enter_subform(uw_context ctx, int n) {
adamc@756 906 if (n < 0)
adamc@756 907 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@756 908 if (n >= uw_inputs_len)
adamc@756 909 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756 910
adamc@756 911 switch (INP(ctx)[n].kind) {
adamc@756 912 case UNSET:
adamc@756 913 uw_error(ctx, FATAL, "Missing subform");
adamc@756 914 case FIL:
adamc@756 915 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756 916 case NORMAL:
adamc@756 917 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759 918 case SUBFORMS:
adamc@759 919 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759 920 case ENTRY:
adamc@759 921 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756 922 case SUBFORM:
adamc@759 923 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760 924 ctx->cur_container = &INP(ctx)[n];
adamc@756 925 return;
adamc@756 926 default:
adamc@756 927 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756 928 }
adamc@756 929 }
adamc@756 930
adamc@756 931 void uw_leave_subform(uw_context ctx) {
adamc@756 932 input *tmp;
adamc@756 933
adamc@759 934 if (ctx->cur_container == NULL)
adamc@756 935 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756 936
adamc@759 937 tmp = ctx->cur_container;
adamc@759 938 ctx->cur_container = tmp->data.subform.parent;
adamc@759 939 tmp->data.subform.parent = NULL;
adamc@759 940 }
adamc@759 941
adamc@759 942 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759 943 input *inps;
adamc@759 944
adamc@759 945 if (n < 0)
adamc@759 946 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@759 947 if (n >= uw_inputs_len)
adamc@759 948 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759 949
adamc@759 950 switch (INP(ctx)[n].kind) {
adamc@759 951 case UNSET:
adamc@759 952 uw_error(ctx, FATAL, "Missing subforms");
adamc@759 953 case FIL:
adamc@759 954 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759 955 case NORMAL:
adamc@759 956 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759 957 case SUBFORM:
adamc@759 958 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759 959 case ENTRY:
adamc@759 960 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759 961 case SUBFORMS:
adamc@759 962 inps = INP(ctx)[n].data.subforms.entries;
adamc@759 963 if (inps) {
adamc@759 964 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759 965 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759 966 return 1;
adamc@759 967 } else
adamc@759 968 return 0;
adamc@759 969 default:
adamc@759 970 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759 971 }
adamc@759 972 }
adamc@759 973
adamc@759 974 int uw_next_entry(uw_context ctx) {
adamc@759 975 if (ctx->cur_container == NULL)
adamc@759 976 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759 977
adamc@759 978 switch (ctx->cur_container->kind) {
adamc@759 979 case UNSET:
adamc@759 980 uw_error(ctx, FATAL, "Missing entry");
adamc@759 981 case FIL:
adamc@759 982 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759 983 case NORMAL:
adamc@759 984 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759 985 case SUBFORM:
adamc@759 986 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759 987 case SUBFORMS:
adamc@759 988 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759 989 case ENTRY:
adamc@759 990 if (ctx->cur_container->data.entry.next) {
adamc@759 991 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759 992 return 1;
adamc@759 993 } else {
adamc@759 994 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759 995 return 0;
adamc@759 996 }
adamc@759 997 default:
adamc@759 998 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759 999 }
adamc@756 1000 }
adamc@756 1001
adamc@643 1002 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643 1003 ctx->script_header = s;
adamc@643 1004 }
adamc@643 1005
adamc@667 1006 void uw_set_url_prefix(uw_context ctx, const char *s) {
adamc@667 1007 ctx->url_prefix = s;
adamc@667 1008 }
adamc@667 1009
adamc@693 1010 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693 1011 ctx->needs_push = n;
adamc@693 1012 }
adamc@693 1013
adamc@736 1014 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736 1015 ctx->needs_sig = n;
adamc@736 1016 }
adamc@736 1017
adamc@667 1018
adamc@667 1019 static void buf_check_ctx(uw_context ctx, buf *b, size_t extra, const char *desc) {
adamc@666 1020 if (b->back - b->front < extra) {
adamc@666 1021 size_t desired = b->front - b->start + extra, next;
adamc@136 1022 char *new_heap;
adamc@136 1023
adamc@666 1024 next = b->back - b->start;
adamc@317 1025 if (next == 0)
adamc@317 1026 next = 1;
adamc@317 1027 for (; next < desired; next *= 2);
adamc@136 1028
adamc@666 1029 new_heap = realloc(b->start, next);
adamc@666 1030 b->front = new_heap + (b->front - b->start);
adamc@666 1031 b->back = new_heap + next;
adamc@136 1032
adamc@667 1033 if (new_heap != b->start) {
adamc@666 1034 b->start = new_heap;
adamc@666 1035 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously", desc);
adamc@136 1036 }
adamc@136 1037
adamc@666 1038 b->start = new_heap;
adamc@136 1039 }
adamc@136 1040 }
adamc@136 1041
adamc@832 1042 void uw_check_heap(uw_context ctx, size_t extra) {
adamc@667 1043 buf_check_ctx(ctx, &ctx->heap, extra, "heap chunk");
adamc@666 1044 }
adamc@666 1045
adamc@832 1046 char *uw_heap_front(uw_context ctx) {
adamc@832 1047 return ctx->heap.front;
adamc@832 1048 }
adamc@832 1049
adamc@832 1050 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832 1051 ctx->heap.front = fr;
adamc@832 1052 }
adamc@832 1053
adamc@311 1054 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136 1055 void *result;
adamc@136 1056
adamc@311 1057 uw_check_heap(ctx, len);
adamc@136 1058
adamc@666 1059 result = ctx->heap.front;
adamc@666 1060 ctx->heap.front += len;
adamc@136 1061 return result;
adamc@117 1062 }
adamc@117 1063
adamc@323 1064 void uw_begin_region(uw_context ctx) {
adamc@666 1065 regions *r = (regions *) ctx->heap.front;
adamc@323 1066
adamc@323 1067 uw_check_heap(ctx, sizeof(regions));
adamc@323 1068
adamc@666 1069 ctx->heap.front += sizeof(regions);
adamc@323 1070
adamc@323 1071 r->next = ctx->regions;
adamc@323 1072 ctx->regions = r;
adamc@323 1073 }
adamc@323 1074
adamc@323 1075 void uw_end_region(uw_context ctx) {
adamc@323 1076 regions *r = ctx->regions;
adamc@323 1077
adamc@323 1078 if (r == NULL)
adamc@323 1079 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323 1080
adamc@666 1081 ctx->heap.front = (char *) r;
adamc@323 1082 ctx->regions = r->next;
adamc@323 1083 }
adamc@323 1084
adamc@324 1085 void uw_memstats(uw_context ctx) {
adamc@666 1086 printf("Headers: %d/%d\n", buf_used(&ctx->outHeaders), buf_avail(&ctx->outHeaders));
adamc@666 1087 printf("Script: %d/%d\n", buf_used(&ctx->script), buf_avail(&ctx->script));
adamc@666 1088 printf("Page: %d/%d\n", buf_used(&ctx->page), buf_avail(&ctx->page));
adamc@666 1089 printf("Heap: %d/%d\n", buf_used(&ctx->heap), buf_avail(&ctx->heap));
adamc@324 1090 }
adamc@324 1091
adamc@311 1092 int uw_send(uw_context ctx, int sock) {
adamc@666 1093 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462 1094
adamc@462 1095 if (n < 0)
adamc@462 1096 return n;
adamc@462 1097
adamc@462 1098 n = uw_really_send(sock, "\r\n", 2);
adamc@462 1099
adamc@462 1100 if (n < 0)
adamc@462 1101 return n;
adamc@462 1102
adamc@666 1103 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462 1104 }
adamc@462 1105
adamc@856 1106 int uw_print(uw_context ctx, int fd) {
adamc@856 1107 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856 1108
adamc@856 1109 if (n < 0)
adamc@856 1110 return n;
adamc@856 1111
adamc@856 1112 n = uw_really_write(fd, "\r\n", 2);
adamc@856 1113
adamc@856 1114 if (n < 0)
adamc@856 1115 return n;
adamc@856 1116
adamc@856 1117 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856 1118 }
adamc@856 1119
adamc@860 1120 int uw_output(uw_context ctx, int (*output)(void *data, char *buf, size_t len), void *data) {
adamc@860 1121 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860 1122
adamc@860 1123 if (n < 0)
adamc@860 1124 return n;
adamc@860 1125
adamc@860 1126 n = output(data, "\r\n", 2);
adamc@860 1127
adamc@860 1128 if (n < 0)
adamc@860 1129 return n;
adamc@860 1130
adamc@860 1131 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860 1132 }
adamc@860 1133
adamc@462 1134 static void uw_check_headers(uw_context ctx, size_t extra) {
adamc@667 1135 buf_check(&ctx->outHeaders, extra);
adamc@462 1136 }
adamc@462 1137
adamc@462 1138 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462 1139 int len = strlen(s);
adamc@462 1140
adamc@462 1141 uw_check_headers(ctx, len + 1);
adamc@666 1142 strcpy(ctx->outHeaders.front, s);
adamc@666 1143 ctx->outHeaders.front += len;
adamc@562 1144 }
adamc@562 1145
adamc@562 1146 static void uw_check_script(uw_context ctx, size_t extra) {
adamc@667 1147 buf_check(&ctx->script, extra);
adamc@562 1148 }
adamc@562 1149
adamc@562 1150 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562 1151 int len = strlen(s);
adamc@562 1152
adamc@562 1153 uw_check_script(ctx, len + 1);
adamc@666 1154 strcpy(ctx->script.front, s);
adamc@666 1155 ctx->script.front += len;
adamc@562 1156 }
adamc@562 1157
adamc@645 1158 const char *uw_Basis_get_script(uw_context ctx, uw_unit u) {
adamc@916 1159 return "<sc>";
adamc@565 1160 }
adamc@565 1161
adamc@695 1162 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695 1163 if (s[0] == 0)
adamc@695 1164 return "";
adamc@695 1165 else {
adamc@695 1166 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695 1167 sprintf(r, " onload='%s'", s);
adamc@695 1168 return r;
adamc@695 1169 }
adamc@695 1170 }
adamc@695 1171
adamc@736 1172 extern uw_Basis_string uw_cookie_sig(uw_context);
adamc@736 1173
adamc@694 1174 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736 1175 if (ctx->client == NULL) {
adamc@736 1176 if (ctx->needs_sig) {
adamc@736 1177 char *sig = uw_cookie_sig(ctx);
adamc@736 1178 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736 1179 sprintf(r, "sig=\"%s\";", sig);
adamc@736 1180 return r;
adamc@736 1181 }
adamc@736 1182 else
adamc@736 1183 return "";
adamc@736 1184 } else {
adamc@736 1185 char *sig = ctx->needs_sig ? uw_cookie_sig(ctx) : "";
adamc@736 1186 char *r = uw_malloc(ctx, 59 + 3 * INTS_MAX + strlen(ctx->url_prefix)
adamc@736 1187 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adamc@736 1188 sprintf(r, "client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adamc@682 1189 ctx->client->id,
adamc@682 1190 ctx->client->pass,
adamc@679 1191 ctx->url_prefix,
adamc@736 1192 ctx->timeout,
adamc@736 1193 ctx->needs_sig ? "sig=\"" : "",
adamc@736 1194 sig,
adamc@736 1195 ctx->needs_sig ? "\";" : "");
adamc@679 1196 return r;
adamc@668 1197 }
adamc@667 1198 }
adamc@667 1199
adamc@574 1200 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574 1201 char *r, *s2;
adamc@574 1202
adamc@574 1203 uw_check_heap(ctx, strlen(s) * 4 + 2);
adamc@574 1204
adamc@666 1205 r = s2 = ctx->heap.front;
adamc@574 1206 *s2++ = '"';
adamc@574 1207
adamc@574 1208 for (; *s; s++) {
adamc@574 1209 char c = *s;
adamc@574 1210
adamc@574 1211 switch (c) {
adamc@574 1212 case '"':
adamc@574 1213 strcpy(s2, "\\\"");
adamc@574 1214 s2 += 2;
adamc@574 1215 break;
adamc@1027 1216 case '\'':
adamc@1027 1217 strcpy(s2, "\\047");
adamc@1027 1218 s2 += 4;
adamc@1027 1219 break;
adamc@574 1220 case '\\':
adamc@574 1221 strcpy(s2, "\\\\");
adamc@574 1222 s2 += 2;
adamc@574 1223 break;
adamc@574 1224 default:
adamc@574 1225 if (isprint(c))
adamc@574 1226 *s2++ = c;
adamc@574 1227 else {
adamc@574 1228 sprintf(s2, "\\%3o", c);
adamc@574 1229 s2 += 4;
adamc@574 1230 }
adamc@574 1231 }
adamc@574 1232 }
adamc@574 1233
adamc@574 1234 strcpy(s2, "\"");
adamc@910 1235 ctx->heap.front = s2 + 2;
adamc@574 1236 return r;
adamc@574 1237 }
adamc@574 1238
adamc@1025 1239 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1025 1240 char *r, *s2;
adamc@1025 1241
adamc@1025 1242 uw_check_heap(ctx, 6);
adamc@1025 1243
adamc@1025 1244 r = s2 = ctx->heap.front;
adamc@1025 1245 *s2++ = '"';
adamc@1025 1246
adamc@1025 1247 switch (c) {
adamc@1025 1248 case '"':
adamc@1025 1249 strcpy(s2, "\\\"");
adamc@1025 1250 s2 += 2;
adamc@1025 1251 break;
adamc@1027 1252 case '\'':
adamc@1027 1253 strcpy(s2, "\\047");
adamc@1027 1254 s2 += 4;
adamc@1027 1255 break;
adamc@1025 1256 case '\\':
adamc@1025 1257 strcpy(s2, "\\\\");
adamc@1025 1258 s2 += 2;
adamc@1025 1259 break;
adamc@1025 1260 default:
adamc@1025 1261 if (isprint(c))
adamc@1025 1262 *s2++ = c;
adamc@1025 1263 else {
adamc@1025 1264 sprintf(s2, "\\%3o", c);
adamc@1025 1265 s2 += 4;
adamc@1025 1266 }
adamc@1025 1267 }
adamc@1025 1268
adamc@1025 1269 strcpy(s2, "\"");
adamc@1025 1270 ctx->heap.front = s2 + 2;
adamc@1025 1271 return r;
adamc@1025 1272 }
adamc@1025 1273
adamc@574 1274 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574 1275 char *r, *s2;
adamc@574 1276
adamc@574 1277 uw_check_script(ctx, strlen(s) * 4 + 2);
adamc@574 1278
adamc@666 1279 r = s2 = ctx->script.front;
adamc@574 1280 *s2++ = '"';
adamc@574 1281
adamc@574 1282 for (; *s; s++) {
adamc@574 1283 char c = *s;
adamc@574 1284
adamc@574 1285 switch (c) {
adamc@577 1286 case '\'':
adamc@1027 1287 strcpy(s2, "\\");
adamc@574 1288 s2 += 2;
adamc@574 1289 break;
adamc@574 1290 case '\\':
adamc@574 1291 strcpy(s2, "\\\\");
adamc@574 1292 s2 += 2;
adamc@574 1293 break;
adamc@574 1294 default:
adamc@574 1295 if (isprint(c))
adamc@574 1296 *s2++ = c;
adamc@574 1297 else {
adamc@574 1298 sprintf(s2, "\\%3o", c);
adamc@574 1299 s2 += 4;
adamc@574 1300 }
adamc@574 1301 }
adamc@574 1302 }
adamc@574 1303
adamc@574 1304 strcpy(s2, "\"");
adamc@666 1305 ctx->script.front = s2 + 1;
adamc@574 1306 return r;
adamc@574 1307 }
adamc@574 1308
adamc@682 1309 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1310 if (ctx->client == NULL || chn.cli != ctx->client->id)
adamc@682 1311 return "null";
adamc@682 1312 else {
adamc@682 1313 int len;
adamc@682 1314 char *r;
adamc@682 1315
adamc@682 1316 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1317 r = ctx->heap.front;
adamc@682 1318 sprintf(r, "%u%n", chn.chn, &len);
adamc@682 1319 ctx->heap.front += len+1;
adamc@682 1320 return r;
adamc@682 1321 }
adamc@682 1322 }
adamc@682 1323
adamc@577 1324 uw_Basis_int uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577 1325 int len;
adamc@577 1326 size_t s_len = strlen(s);
adamc@562 1327
adamc@970 1328 uw_check_script(ctx, 18 + INTS_MAX + s_len);
adamc@970 1329 sprintf(ctx->script.front, "var s%d=sc(exec(%n", ctx->source_count, &len);
adamc@666 1330 ctx->script.front += len;
adamc@666 1331 strcpy(ctx->script.front, s);
adamc@666 1332 ctx->script.front += s_len;
adamc@970 1333 strcpy(ctx->script.front, "));");
adamc@972 1334 ctx->script.front += 3;
adamc@562 1335
adamc@565 1336 return ctx->source_count++;
adamc@117 1337 }
adamc@117 1338
adamc@577 1339 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_int n, uw_Basis_string s) {
adamc@577 1340 int len;
adamc@577 1341 size_t s_len = strlen(s);
adamc@577 1342
adamc@970 1343 uw_check_script(ctx, 12 + INTS_MAX + s_len);
adamc@970 1344 sprintf(ctx->script.front, "sv(s%d,exec(%n", (int)n, &len);
adamc@666 1345 ctx->script.front += len;
adamc@666 1346 strcpy(ctx->script.front, s);
adamc@666 1347 ctx->script.front += s_len;
adamc@970 1348 strcpy(ctx->script.front, "));");
adamc@972 1349 ctx->script.front += 3;
adamc@577 1350
adamc@577 1351 return uw_unit_v;
adamc@577 1352 }
adamc@577 1353
adamc@311 1354 static void uw_check(uw_context ctx, size_t extra) {
adamc@667 1355 buf_check(&ctx->page, extra);
adamc@117 1356 }
adamc@117 1357
adamc@311 1358 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666 1359 *(ctx->page.front)++ = c;
adamc@117 1360 }
adamc@117 1361
adamc@311 1362 void uw_writec(uw_context ctx, char c) {
adamc@311 1363 uw_check(ctx, 1);
adamc@311 1364 uw_writec_unsafe(ctx, c);
adamc@117 1365 }
adamc@117 1366
adamc@311 1367 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117 1368 int len = strlen(s);
adamc@666 1369 memcpy(ctx->page.front, s, len);
adamc@666 1370 ctx->page.front += len;
adamc@117 1371 }
adamc@117 1372
adamc@311 1373 void uw_write(uw_context ctx, const char* s) {
adamc@311 1374 uw_check(ctx, strlen(s) + 1);
adamc@311 1375 uw_write_unsafe(ctx, s);
adamc@666 1376 *ctx->page.front = 0;
adamc@102 1377 }
adamc@106 1378
adamc@311 1379 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136 1380 char *result;
adamc@136 1381 int len;
adamc@311 1382 uw_check_heap(ctx, INTS_MAX);
adamc@666 1383 result = ctx->heap.front;
adamc@276 1384 sprintf(result, "%lld%n", n, &len);
adamc@666 1385 ctx->heap.front += len+1;
adamc@136 1386 return result;
adamc@106 1387 }
adamc@106 1388
adamc@311 1389 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136 1390 char *result;
adamc@136 1391 int len;
adamc@311 1392 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1393 result = ctx->heap.front;
adamc@136 1394 sprintf(result, "%g%n", n, &len);
adamc@666 1395 ctx->heap.front += len+1;
adamc@136 1396 return result;
adamc@106 1397 }
adamc@106 1398
adamc@311 1399 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136 1400 int len = strlen(s);
adamc@136 1401 char *result, *p;
adamc@311 1402 uw_check_heap(ctx, len * 6 + 1);
adamc@136 1403
adamc@666 1404 result = p = ctx->heap.front;
adamc@136 1405
adamc@136 1406 for (; *s; s++) {
adamc@136 1407 char c = *s;
adamc@136 1408
adamc@136 1409 if (c == '"') {
adamc@136 1410 strcpy(p, "&quot;");
adamc@136 1411 p += 6;
adamc@136 1412 } else if (c == '&') {
adamc@136 1413 strcpy(p, "&amp;");
adamc@136 1414 p += 5;
adamc@136 1415 }
adamc@136 1416 else if (isprint(c))
adamc@136 1417 *p++ = c;
adamc@136 1418 else {
adamc@136 1419 int len2;
adamc@136 1420 sprintf(p, "&#%d;%n", c, &len2);
adamc@136 1421 p += len2;
adamc@136 1422 }
adamc@136 1423 }
adamc@136 1424
adamc@137 1425 *p++ = 0;
adamc@666 1426 ctx->heap.front = p;
adamc@136 1427 return result;
adamc@106 1428 }
adamc@106 1429
adamc@1011 1430 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011 1431 char *result, *p;
adamc@1011 1432 uw_check_heap(ctx, 7);
adamc@1011 1433
adamc@1011 1434 result = p = ctx->heap.front;
adamc@1011 1435
adamc@1011 1436 if (c == '"') {
adamc@1011 1437 strcpy(p, "&quot;");
adamc@1011 1438 p += 6;
adamc@1011 1439 } else if (c == '&') {
adamc@1011 1440 strcpy(p, "&amp;");
adamc@1011 1441 p += 5;
adamc@1011 1442 }
adamc@1011 1443 else if (isprint(c))
adamc@1011 1444 *p++ = c;
adamc@1011 1445 else {
adamc@1011 1446 int len2;
adamc@1011 1447 sprintf(p, "&#%d;%n", c, &len2);
adamc@1011 1448 p += len2;
adamc@1011 1449 }
adamc@1011 1450
adamc@1011 1451 *p++ = 0;
adamc@1011 1452 ctx->heap.front = p;
adamc@1011 1453 return result;
adamc@1011 1454 }
adamc@1011 1455
adamc@721 1456 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721 1457 return s;
adamc@721 1458 }
adamc@721 1459
adamc@311 1460 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117 1461 int len;
adamc@117 1462
adamc@666 1463 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1464 ctx->page.front += len;
adamc@106 1465 }
adamc@106 1466
adamc@428 1467 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311 1468 uw_check(ctx, INTS_MAX);
adamc@311 1469 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428 1470
adamc@428 1471 return uw_unit_v;
adamc@106 1472 }
adamc@106 1473
adamc@428 1474 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117 1475 int len;
adamc@117 1476
adamc@311 1477 uw_check(ctx, FLOATS_MAX);
adamc@666 1478 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1479 ctx->page.front += len;
adamc@428 1480
adamc@428 1481 return uw_unit_v;
adamc@117 1482 }
adamc@117 1483
adamc@428 1484 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311 1485 uw_check(ctx, strlen(s) * 6);
adamc@117 1486
adamc@106 1487 for (; *s; s++) {
adamc@106 1488 char c = *s;
adamc@106 1489
adamc@106 1490 if (c == '"')
adamc@311 1491 uw_write_unsafe(ctx, "&quot;");
adamc@136 1492 else if (c == '&')
adamc@311 1493 uw_write_unsafe(ctx, "&amp;");
adamc@106 1494 else if (isprint(c))
adamc@311 1495 uw_writec_unsafe(ctx, c);
adamc@106 1496 else {
adamc@311 1497 uw_write_unsafe(ctx, "&#");
adamc@311 1498 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311 1499 uw_writec_unsafe(ctx, ';');
adamc@106 1500 }
adamc@106 1501 }
adamc@428 1502
adamc@428 1503 return uw_unit_v;
adamc@106 1504 }
adamc@120 1505
adamc@1011 1506 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011 1507 uw_check(ctx, 6);
adamc@1011 1508
adamc@1011 1509 if (c == '"')
adamc@1011 1510 uw_write_unsafe(ctx, "&quot;");
adamc@1011 1511 else if (c == '&')
adamc@1011 1512 uw_write_unsafe(ctx, "&amp;");
adamc@1011 1513 else if (isprint(c))
adamc@1011 1514 uw_writec_unsafe(ctx, c);
adamc@1011 1515 else {
adamc@1011 1516 uw_write_unsafe(ctx, "&#");
adamc@1011 1517 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@1011 1518 uw_writec_unsafe(ctx, ';');
adamc@1011 1519 }
adamc@1011 1520
adamc@1011 1521 return uw_unit_v;
adamc@1011 1522 }
adamc@1011 1523
adamc@120 1524
adamc@311 1525 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137 1526 int len;
adamc@137 1527 char *r;
adamc@137 1528
adamc@311 1529 uw_check_heap(ctx, INTS_MAX);
adamc@666 1530 r = ctx->heap.front;
adamc@276 1531 sprintf(r, "%lld%n", n, &len);
adamc@666 1532 ctx->heap.front += len+1;
adamc@137 1533 return r;
adamc@120 1534 }
adamc@120 1535
adamc@682 1536 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1537 if (ctx->client == NULL || chn.cli != ctx->client->id)
adamc@682 1538 return "";
adamc@682 1539 else {
adamc@682 1540 int len;
adamc@682 1541 char *r;
adamc@679 1542
adamc@682 1543 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1544 r = ctx->heap.front;
adamc@682 1545 sprintf(r, "%u%n", chn.chn, &len);
adamc@682 1546 ctx->heap.front += len+1;
adamc@682 1547 return r;
adamc@682 1548 }
adamc@679 1549 }
adamc@679 1550
adamc@311 1551 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137 1552 int len;
adamc@137 1553 char *r;
adamc@137 1554
adamc@311 1555 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1556 r = ctx->heap.front;
adamc@137 1557 sprintf(r, "%g%n", n, &len);
adamc@666 1558 ctx->heap.front += len+1;
adamc@137 1559 return r;
adamc@120 1560 }
adamc@120 1561
adamc@311 1562 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137 1563 char *r, *p;
adamc@137 1564
adamc@925 1565 if (s[0] == '\0')
adamc@925 1566 return "_";
adamc@925 1567
adamc@925 1568 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925 1569
adamc@925 1570 r = p = ctx->heap.front;
adamc@925 1571 if (s[0] == '_')
adamc@925 1572 *p++ = '_';
adamc@925 1573
adamc@925 1574 for (; *s; s++) {
adamc@137 1575 char c = *s;
adamc@137 1576
adamc@137 1577 if (c == ' ')
adamc@137 1578 *p++ = '+';
adamc@137 1579 else if (isalnum(c))
adamc@137 1580 *p++ = c;
adamc@137 1581 else {
adamc@137 1582 sprintf(p, "%%%02X", c);
adamc@137 1583 p += 3;
adamc@137 1584 }
adamc@137 1585 }
adamc@137 1586
adamc@137 1587 *p++ = 0;
adamc@666 1588 ctx->heap.front = p;
adamc@137 1589 return r;
adamc@120 1590 }
adamc@120 1591
adamc@311 1592 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 1593 if (b == uw_Basis_False)
adamc@186 1594 return "0";
adamc@186 1595 else
adamc@186 1596 return "1";
adamc@186 1597 }
adamc@186 1598
adamc@311 1599 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120 1600 int len;
adamc@120 1601
adamc@666 1602 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1603 ctx->page.front += len;
adamc@120 1604 }
adamc@120 1605
adamc@428 1606 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311 1607 uw_check(ctx, INTS_MAX);
adamc@311 1608 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428 1609
adamc@428 1610 return uw_unit_v;
adamc@120 1611 }
adamc@120 1612
adamc@682 1613 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1614 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682 1615 int len;
adamc@682 1616
adamc@682 1617 uw_check(ctx, INTS_MAX + 1);
adamc@682 1618 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682 1619 ctx->page.front += len;
adamc@682 1620 }
adamc@682 1621
adamc@679 1622 return uw_unit_v;
adamc@679 1623 }
adamc@679 1624
adamc@428 1625 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120 1626 int len;
adamc@120 1627
adamc@311 1628 uw_check(ctx, FLOATS_MAX);
adamc@666 1629 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1630 ctx->page.front += len;
adamc@428 1631
adamc@428 1632 return uw_unit_v;
adamc@120 1633 }
adamc@120 1634
adamc@488 1635 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@488 1636 return uw_Basis_urlifyInt(ctx, t);
adamc@488 1637 }
adamc@488 1638
adamc@428 1639 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925 1640 if (s[0] == '\0') {
adamc@925 1641 uw_check(ctx, 1);
adamc@925 1642 uw_writec_unsafe(ctx, '_');
adamc@925 1643 return uw_unit_v;
adamc@925 1644 }
adamc@925 1645
adamc@925 1646 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925 1647
adamc@925 1648 if (s[0] == '_')
adamc@925 1649 uw_writec_unsafe(ctx, '_');
adamc@120 1650
adamc@120 1651 for (; *s; s++) {
adamc@120 1652 char c = *s;
adamc@120 1653
adamc@120 1654 if (c == ' ')
adamc@311 1655 uw_writec_unsafe(ctx, '+');
adamc@120 1656 else if (isalnum(c))
adamc@311 1657 uw_writec_unsafe(ctx, c);
adamc@120 1658 else {
adamc@666 1659 sprintf(ctx->page.front, "%%%02X", c);
adamc@666 1660 ctx->page.front += 3;
adamc@120 1661 }
adamc@120 1662 }
adamc@428 1663
adamc@428 1664 return uw_unit_v;
adamc@120 1665 }
adamc@120 1666
adamc@428 1667 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311 1668 if (b == uw_Basis_False)
adamc@311 1669 uw_writec(ctx, '0');
adamc@186 1670 else
adamc@311 1671 uw_writec(ctx, '1');
adamc@428 1672
adamc@428 1673 return uw_unit_v;
adamc@186 1674 }
adamc@186 1675
adamc@120 1676
adamc@311 1677 static char *uw_unurlify_advance(char *s) {
adamc@144 1678 char *new_s = strchr(s, '/');
adamc@120 1679
adamc@120 1680 if (new_s)
adamc@120 1681 *new_s++ = 0;
adamc@120 1682 else
adamc@144 1683 new_s = strchr(s, 0);
adamc@144 1684
adamc@144 1685 return new_s;
adamc@144 1686 }
adamc@144 1687
adamc@311 1688 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311 1689 char *new_s = uw_unurlify_advance(*s);
adamc@311 1690 uw_Basis_int r;
adamc@120 1691
adamc@276 1692 r = atoll(*s);
adamc@120 1693 *s = new_s;
adamc@120 1694 return r;
adamc@120 1695 }
adamc@120 1696
adamc@311 1697 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311 1698 char *new_s = uw_unurlify_advance(*s);
adamc@311 1699 uw_Basis_float r;
adamc@120 1700
adamc@120 1701 r = atof(*s);
adamc@120 1702 *s = new_s;
adamc@120 1703 return r;
adamc@120 1704 }
adamc@120 1705
adamc@488 1706 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adamc@488 1707 return uw_Basis_unurlifyInt(ctx, s);
adamc@488 1708 }
adamc@488 1709
adamc@1023 1710 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char *r, char *s) {
adamc@927 1711 char *s1, *s2 = s;
adamc@144 1712 int n;
adamc@136 1713
adamc@1023 1714 if (!fromClient) {
adamc@1023 1715 if (*s2 == '_')
adamc@1023 1716 ++s2;
adamc@1023 1717 else if (s2[0] == '%' && s2[1] == '5' && (s2[2] == 'f' || s2[2] == 'F'))
adamc@1023 1718 s2 += 3;
adamc@1023 1719 }
adamc@925 1720
adamc@927 1721 for (s1 = r; *s2; ++s1, ++s2) {
adamc@136 1722 char c = *s2;
adamc@136 1723
adamc@136 1724 switch (c) {
adamc@136 1725 case '+':
adamc@136 1726 *s1 = ' ';
adamc@136 1727 break;
adamc@136 1728 case '%':
adamc@169 1729 if (s2[1] == 0)
adamc@311 1730 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169 1731 if (s2[2] == 0)
adamc@311 1732 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169 1733 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@311 1734 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@136 1735 *s1 = n;
adamc@136 1736 s2 += 2;
adamc@136 1737 break;
adamc@136 1738 default:
adamc@136 1739 *s1 = c;
adamc@136 1740 }
adamc@136 1741 }
adamc@136 1742 *s1++ = 0;
adamc@144 1743 return s1;
adamc@144 1744 }
adamc@144 1745
adamc@311 1746 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311 1747 char *new_s = uw_unurlify_advance(*s);
adamc@311 1748 uw_Basis_bool r;
adamc@186 1749
adamc@186 1750 if (*s[0] == 0 || !strcmp(*s, "0") || !strcmp(*s, "off"))
adamc@311 1751 r = uw_Basis_False;
adamc@186 1752 else
adamc@311 1753 r = uw_Basis_True;
adamc@186 1754
adamc@186 1755 *s = new_s;
adamc@186 1756 return r;
adamc@186 1757 }
adamc@186 1758
adamc@311 1759 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311 1760 char *new_s = uw_unurlify_advance(*s);
adamc@144 1761 char *r, *s1, *s2;
adamc@144 1762 int len, n;
adamc@144 1763
adamc@200 1764 len = strlen(*s);
adamc@311 1765 uw_check_heap(ctx, len + 1);
adamc@144 1766
adamc@666 1767 r = ctx->heap.front;
adamc@1023 1768 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023 1769 *s = new_s;
adamc@1023 1770 return r;
adamc@1023 1771 }
adamc@1023 1772
adamc@1023 1773 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023 1774 char *new_s = uw_unurlify_advance(*s);
adamc@1023 1775 char *r, *s1, *s2;
adamc@1023 1776 int len, n;
adamc@1023 1777
adamc@1023 1778 len = strlen(*s);
adamc@1023 1779 uw_check_heap(ctx, len + 1);
adamc@1023 1780
adamc@1023 1781 r = ctx->heap.front;
adamc@1023 1782 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136 1783 *s = new_s;
adamc@136 1784 return r;
adamc@120 1785 }
adamc@135 1786
adamc@135 1787
adamc@311 1788 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286 1789 int len;
adamc@286 1790 char *r;
adamc@286 1791
adamc@311 1792 uw_check_heap(ctx, INTS_MAX);
adamc@666 1793 r = ctx->heap.front;
adamc@286 1794 sprintf(r, "%lld%n", n, &len);
adamc@666 1795 ctx->heap.front += len+1;
adamc@286 1796 return r;
adamc@286 1797 }
adamc@286 1798
adamc@428 1799 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286 1800 int len;
adamc@286 1801
adamc@311 1802 uw_check(ctx, INTS_MAX);
adamc@666 1803 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1804 ctx->page.front += len;
adamc@428 1805
adamc@428 1806 return uw_unit_v;
adamc@286 1807 }
adamc@286 1808
adamc@311 1809 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286 1810 int len;
adamc@286 1811 char *r;
adamc@286 1812
adamc@311 1813 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1814 r = ctx->heap.front;
adamc@286 1815 sprintf(r, "%g%n", n, &len);
adamc@666 1816 ctx->heap.front += len+1;
adamc@286 1817 return r;
adamc@286 1818 }
adamc@286 1819
adamc@428 1820 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286 1821 int len;
adamc@286 1822
adamc@311 1823 uw_check(ctx, FLOATS_MAX);
adamc@666 1824 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1825 ctx->page.front += len;
adamc@428 1826
adamc@428 1827 return uw_unit_v;
adamc@286 1828 }
adamc@286 1829
adamc@311 1830 char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137 1831 char *r, *s2;
adamc@137 1832
adamc@311 1833 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137 1834
adamc@666 1835 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@137 1836 char c = *s;
adamc@137 1837
adamc@137 1838 switch (c) {
adamc@137 1839 case '<':
adamc@137 1840 strcpy(s2, "&lt;");
adamc@137 1841 s2 += 4;
adamc@137 1842 break;
adamc@137 1843 case '&':
adamc@137 1844 strcpy(s2, "&amp;");
adamc@137 1845 s2 += 5;
adamc@137 1846 break;
adamc@137 1847 default:
adamc@137 1848 if (isprint(c))
adamc@137 1849 *s2++ = c;
adamc@137 1850 else {
adamc@137 1851 int len2;
adamc@137 1852 sprintf(s2, "&#%d;%n", c, &len2);
adamc@137 1853 s2 += len2;
adamc@137 1854 }
adamc@137 1855 }
adamc@137 1856 }
adamc@137 1857
adamc@137 1858 *s2++ = 0;
adamc@666 1859 ctx->heap.front = s2;
adamc@137 1860 return r;
adamc@135 1861 }
adamc@135 1862
adamc@428 1863 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321 1864 uw_check(ctx, strlen(s) * 6);
adamc@135 1865
adamc@135 1866 for (; *s; s++) {
adamc@135 1867 char c = *s;
adamc@135 1868
adamc@135 1869 switch (c) {
adamc@135 1870 case '<':
adamc@311 1871 uw_write_unsafe(ctx, "&lt;");
adamc@135 1872 break;
adamc@135 1873 case '&':
adamc@311 1874 uw_write_unsafe(ctx, "&amp;");
adamc@135 1875 break;
adamc@135 1876 default:
adamc@135 1877 if (isprint(c))
adamc@311 1878 uw_writec_unsafe(ctx, c);
adamc@135 1879 else {
adamc@311 1880 uw_write_unsafe(ctx, "&#");
adamc@311 1881 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311 1882 uw_writec_unsafe(ctx, ';');
adamc@135 1883 }
adamc@135 1884 }
adamc@135 1885 }
adamc@428 1886
adamc@428 1887 return uw_unit_v;
adamc@135 1888 }
adamc@180 1889
adamc@311 1890 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 1891 if (b == uw_Basis_False)
adamc@286 1892 return "False";
adamc@286 1893 else
adamc@286 1894 return "True";
adamc@286 1895 }
adamc@286 1896
adamc@428 1897 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311 1898 if (b == uw_Basis_False) {
adamc@311 1899 uw_check(ctx, 6);
adamc@666 1900 strcpy(ctx->page.front, "False");
adamc@666 1901 ctx->page.front += 5;
adamc@286 1902 } else {
adamc@311 1903 uw_check(ctx, 5);
adamc@666 1904 strcpy(ctx->page.front, "True");
adamc@666 1905 ctx->page.front += 4;
adamc@286 1906 }
adamc@428 1907
adamc@428 1908 return uw_unit_v;
adamc@286 1909 }
adamc@286 1910
adamc@436 1911 #define TIME_FMT "%x %X"
adamc@438 1912 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436 1913
adamc@436 1914 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436 1915 size_t len;
adamc@436 1916 char *r;
adamc@436 1917 struct tm stm;
adamc@436 1918
adamc@436 1919 if (localtime_r(&t, &stm)) {
adamc@436 1920 uw_check_heap(ctx, TIMES_MAX);
adamc@666 1921 r = ctx->heap.front;
adamc@436 1922 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 1923 ctx->heap.front += len+1;
adamc@436 1924 return r;
adamc@436 1925 } else
adamc@436 1926 return "<i>Invalid time</i>";
adamc@436 1927 }
adamc@436 1928
adamc@436 1929 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436 1930 size_t len;
adamc@436 1931 char *r;
adamc@436 1932 struct tm stm;
adamc@436 1933
adamc@436 1934 if (localtime_r(&t, &stm)) {
adamc@436 1935 uw_check(ctx, TIMES_MAX);
adamc@666 1936 r = ctx->page.front;
adamc@436 1937 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 1938 ctx->page.front += len;
adamc@436 1939 } else {
adamc@436 1940 uw_check(ctx, 20);
adamc@666 1941 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666 1942 ctx->page.front += 19;
adamc@436 1943 }
adamc@436 1944
adamc@436 1945 return uw_unit_v;
adamc@436 1946 }
adamc@436 1947
adamc@821 1948 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821 1949 if (n >= 0 && n < strlen(s))
adamc@821 1950 return s[n];
adamc@821 1951 else
adamc@821 1952 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adamc@821 1953 }
adamc@821 1954
adamc@821 1955 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821 1956 if (n >= 0 && n < strlen(s))
adamc@821 1957 return &s[n];
adamc@821 1958 else
adamc@821 1959 uw_error(ctx, FATAL, "Out-of-bounds strsuffix");
adamc@821 1960 }
adamc@821 1961
adamc@828 1962 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828 1963 return strlen(s);
adamc@828 1964 }
adamc@828 1965
adamc@829 1966 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829 1967 return strchr(s, ch);
adamc@829 1968 }
adamc@829 1969
adamc@831 1970 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831 1971 return strcspn(s, chs);
adamc@831 1972 }
adamc@831 1973
adamc@829 1974 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829 1975 uw_Basis_string r = strchr(s, ch);
adamc@829 1976 if (r == NULL)
adamc@829 1977 return NULL;
adamc@829 1978 else {
adamc@829 1979 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829 1980 *nr = r - s;
adamc@829 1981 return nr;
adamc@829 1982 }
adamc@829 1983 }
adamc@829 1984
adamc@311 1985 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828 1986 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180 1987 char *s;
adamc@180 1988
adamc@311 1989 uw_check_heap(ctx, len);
adamc@180 1990
adamc@666 1991 s = ctx->heap.front;
adamc@180 1992
adamc@180 1993 strcpy(s, s1);
adamc@180 1994 strcat(s, s2);
adamc@666 1995 ctx->heap.front += len;
adamc@180 1996
adamc@180 1997 return s;
adamc@180 1998 }
adamc@278 1999
adamc@829 2000 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829 2001 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829 2002
adamc@829 2003 if (start < 0)
adamc@829 2004 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829 2005 if (len < 0)
adamc@829 2006 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829 2007 if (start + len > full_len)
adamc@829 2008 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829 2009
adamc@829 2010 if (start + len == full_len)
adamc@829 2011 return &s[start];
adamc@829 2012 else {
adamc@829 2013 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959 2014 memcpy(r, s+start, len);
adamc@829 2015 r[len] = 0;
adamc@829 2016 return r;
adamc@829 2017 }
adamc@829 2018
adamc@829 2019 }
adamc@829 2020
adamc@1023 2021 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023 2022 char *r;
adamc@1023 2023
adamc@1023 2024 uw_check_heap(ctx, 2);
adamc@1023 2025 r = ctx->heap.front;
adamc@1023 2026 r[0] = ch;
adamc@1023 2027 r[1] = 0;
adamc@1023 2028
adamc@1023 2029 ctx->heap.front += 2;
adamc@1023 2030
adamc@1023 2031 return r;
adamc@1023 2032 }
adamc@1023 2033
adamc@737 2034 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828 2035 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278 2036 char *s;
adamc@278 2037
adamc@311 2038 uw_check_heap(ctx, len);
adamc@278 2039
adamc@666 2040 s = ctx->heap.front;
adamc@278 2041
adamc@278 2042 strcpy(s, s1);
adamc@666 2043 ctx->heap.front += len;
adamc@278 2044
adamc@278 2045 return s;
adamc@278 2046 }
adamc@280 2047
adamc@737 2048 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493 2049 if (s1)
adamc@737 2050 return uw_strdup(ctx, s1);
adamc@493 2051 else
adamc@493 2052 return NULL;
adamc@493 2053 }
adamc@493 2054
adamc@742 2055 char *uw_memdup(uw_context ctx, const char *p, size_t len) {
adamc@742 2056 char *r = uw_malloc(ctx, len);
adamc@742 2057 memcpy(r, p, len);
adamc@742 2058 return r;
adamc@742 2059 }
adamc@280 2060
adamc@879 2061 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879 2062
adamc@311 2063 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281 2064 int len;
adamc@281 2065 char *r;
adamc@281 2066
adamc@311 2067 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666 2068 r = ctx->heap.front;
adamc@879 2069 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666 2070 ctx->heap.front += len+1;
adamc@281 2071 return r;
adamc@281 2072 }
adamc@281 2073
adamc@467 2074 char *uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int *n) {
adamc@467 2075 if (n == NULL)
adamc@467 2076 return "NULL";
adamc@467 2077 else
adamc@467 2078 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467 2079 }
adamc@467 2080
adamc@879 2081 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879 2082
adamc@311 2083 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281 2084 int len;
adamc@281 2085 char *r;
adamc@281 2086
adamc@311 2087 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666 2088 r = ctx->heap.front;
adamc@879 2089 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666 2090 ctx->heap.front += len+1;
adamc@281 2091 return r;
adamc@281 2092 }
adamc@281 2093
adamc@467 2094 char *uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float *n) {
adamc@467 2095 if (n == NULL)
adamc@467 2096 return "NULL";
adamc@467 2097 else
adamc@467 2098 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467 2099 }
adamc@467 2100
adamc@879 2101 int uw_Estrings = 1;
adamc@879 2102 char *uw_sqlsuffixString = "::text";
adamc@1011 2103 char *uw_sqlsuffixChar = "::char";
adamc@281 2104
adamc@311 2105 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280 2106 char *r, *s2;
adamc@280 2107
adamc@879 2108 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280 2109
adamc@666 2110 r = s2 = ctx->heap.front;
adamc@879 2111 if (uw_Estrings)
adamc@879 2112 *s2++ = 'E';
adamc@280 2113 *s2++ = '\'';
adamc@280 2114
adamc@280 2115 for (; *s; s++) {
adamc@280 2116 char c = *s;
adamc@280 2117
adamc@280 2118 switch (c) {
adamc@280 2119 case '\'':
adamc@885 2120 if (uw_Estrings)
adamc@885 2121 strcpy(s2, "\\'");
adamc@885 2122 else
adamc@885 2123 strcpy(s2, "''");
adamc@280 2124 s2 += 2;
adamc@280 2125 break;
adamc@280 2126 case '\\':
adamc@885 2127 if (uw_Estrings) {
adamc@885 2128 strcpy(s2, "\\\\");
adamc@885 2129 s2 += 2;
adamc@885 2130 } else
adamc@885 2131 *s2++ = '\\';
adamc@280 2132 break;
adamc@280 2133 default:
adamc@280 2134 if (isprint(c))
adamc@280 2135 *s2++ = c;
adamc@879 2136 else if (uw_Estrings) {
adamc@737 2137 sprintf(s2, "\\%03o", c);
adamc@280 2138 s2 += 4;
adamc@280 2139 }
adamc@879 2140 else
adamc@879 2141 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280 2142 }
adamc@280 2143 }
adamc@280 2144
adamc@879 2145 *s2++ = '\'';
adamc@879 2146 strcpy(s2, uw_sqlsuffixString);
adamc@879 2147 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280 2148 return r;
adamc@280 2149 }
adamc@281 2150
adamc@1011 2151 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011 2152 char *r, *s2;
adamc@1011 2153
adamc@1011 2154 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011 2155
adamc@1011 2156 r = s2 = ctx->heap.front;
adamc@1011 2157 if (uw_Estrings)
adamc@1011 2158 *s2++ = 'E';
adamc@1011 2159 *s2++ = '\'';
adamc@1011 2160
adamc@1011 2161 switch (c) {
adamc@1011 2162 case '\'':
adamc@1011 2163 if (uw_Estrings)
adamc@1011 2164 strcpy(s2, "\\'");
adamc@1011 2165 else
adamc@1011 2166 strcpy(s2, "''");
adamc@1011 2167 s2 += 2;
adamc@1011 2168 break;
adamc@1011 2169 case '\\':
adamc@1011 2170 if (uw_Estrings) {
adamc@1011 2171 strcpy(s2, "\\\\");
adamc@1011 2172 s2 += 2;
adamc@1011 2173 } else
adamc@1011 2174 *s2++ = '\\';
adamc@1011 2175 break;
adamc@1011 2176 default:
adamc@1011 2177 if (isprint(c))
adamc@1011 2178 *s2++ = c;
adamc@1011 2179 else if (uw_Estrings) {
adamc@1011 2180 sprintf(s2, "\\%03o", c);
adamc@1011 2181 s2 += 4;
adamc@1011 2182 }
adamc@1011 2183 else
adamc@1011 2184 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011 2185 }
adamc@1011 2186
adamc@1011 2187 *s2++ = '\'';
adamc@1011 2188 strcpy(s2, uw_sqlsuffixChar);
adamc@1011 2189 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011 2190 return r;
adamc@1011 2191 }
adamc@1011 2192
adamc@879 2193 char *uw_sqlsuffixBlob = "::bytea";
adamc@879 2194
adamc@737 2195 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737 2196 char *r, *s2;
adamc@737 2197 size_t i;
adamc@737 2198
adamc@879 2199 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737 2200
adamc@737 2201 r = s2 = ctx->heap.front;
adamc@879 2202 if (uw_Estrings)
adamc@879 2203 *s2++ = 'E';
adamc@737 2204 *s2++ = '\'';
adamc@737 2205
adamc@737 2206 for (i = 0; i < b.size; ++i) {
adamc@737 2207 char c = b.data[i];
adamc@737 2208
adamc@737 2209 switch (c) {
adamc@737 2210 case '\'':
adamc@885 2211 if (uw_Estrings)
adamc@885 2212 strcpy(s2, "\\'");
adamc@885 2213 else
adamc@885 2214 strcpy(s2, "''");
adamc@737 2215 s2 += 2;
adamc@737 2216 break;
adamc@737 2217 case '\\':
adamc@885 2218 if (uw_Estrings) {
adamc@885 2219 strcpy(s2, "\\\\\\\\");
adamc@885 2220 s2 += 4;
adamc@885 2221 } else
adamc@885 2222 *s2++ = '\\';
adamc@737 2223 break;
adamc@737 2224 default:
adamc@737 2225 if (isprint(c))
adamc@737 2226 *s2++ = c;
adamc@879 2227 else if (uw_Estrings) {
adamc@737 2228 sprintf(s2, "\\\\%03o", c);
adamc@737 2229 s2 += 5;
adamc@737 2230 }
adamc@879 2231 else
adamc@879 2232 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737 2233 }
adamc@737 2234 }
adamc@737 2235
adamc@879 2236 *s2++ = '\'';
adamc@879 2237 strcpy(s2, uw_sqlsuffixBlob);
adamc@879 2238 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737 2239 return r;
adamc@737 2240 }
adamc@737 2241
adamc@682 2242 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 2243 int len;
adamc@682 2244 char *r;
adamc@682 2245 unsigned long long combo = ((unsigned long long)chn.cli << 32) | chn.chn;
adamc@682 2246
adamc@682 2247 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682 2248 r = ctx->heap.front;
adamc@879 2249 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682 2250 ctx->heap.front += len+1;
adamc@682 2251 return r;
adamc@682 2252 }
adamc@682 2253
adamc@682 2254 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 2255 int len;
adamc@682 2256 char *r;
adamc@682 2257 unsigned long long combo = ((unsigned long long)chn.cli << 32) | chn.chn;
adamc@682 2258
adamc@682 2259 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 2260 r = ctx->heap.front;
adamc@682 2261 sprintf(r, "%lld%n", combo, &len);
adamc@682 2262 ctx->heap.front += len+1;
adamc@682 2263 return r;
adamc@682 2264 }
adamc@682 2265
adamc@879 2266 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879 2267
adamc@682 2268 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682 2269 int len;
adamc@682 2270 char *r;
adamc@682 2271
adamc@682 2272 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682 2273 r = ctx->heap.front;
adamc@879 2274 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682 2275 ctx->heap.front += len+1;
adamc@682 2276 return r;
adamc@682 2277 }
adamc@682 2278
adamc@682 2279 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682 2280 int len;
adamc@682 2281 char *r;
adamc@682 2282
adamc@682 2283 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 2284 r = ctx->heap.front;
adamc@682 2285 sprintf(r, "%u%n", cli, &len);
adamc@682 2286 ctx->heap.front += len+1;
adamc@682 2287 return r;
adamc@682 2288 }
adamc@682 2289
adamc@467 2290 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467 2291 if (s == NULL)
adamc@467 2292 return "NULL";
adamc@467 2293 else
adamc@467 2294 return uw_Basis_sqlifyString(ctx, s);
adamc@467 2295 }
adamc@467 2296
adamc@311 2297 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 2298 if (b == uw_Basis_False)
adamc@281 2299 return "FALSE";
adamc@281 2300 else
adamc@281 2301 return "TRUE";
adamc@281 2302 }
adamc@282 2303
adamc@467 2304 char *uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool *b) {
adamc@467 2305 if (b == NULL)
adamc@467 2306 return "NULL";
adamc@467 2307 else
adamc@467 2308 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467 2309 }
adamc@467 2310
adamc@439 2311 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439 2312 size_t len;
adamc@682 2313 char *r, *s;
adamc@682 2314 struct tm stm;
adamc@682 2315
adamc@682 2316 if (localtime_r(&t, &stm)) {
adamc@682 2317 s = uw_malloc(ctx, TIMES_MAX);
adamc@995 2318 --stm.tm_hour;
adamc@682 2319 len = strftime(s, TIMES_MAX, TIME_FMT, &stm);
adamc@682 2320 r = uw_malloc(ctx, len + 14);
adamc@682 2321 sprintf(r, "'%s'::timestamp", s);
adamc@682 2322 return r;
adamc@682 2323 } else
adamc@682 2324 return "<Invalid time>";
adamc@682 2325 }
adamc@682 2326
adamc@682 2327 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682 2328 size_t len;
adamc@439 2329 char *r;
adamc@439 2330 struct tm stm;
adamc@439 2331
adamc@439 2332 if (localtime_r(&t, &stm)) {
adamc@439 2333 uw_check_heap(ctx, TIMES_MAX);
adamc@666 2334 r = ctx->heap.front;
adamc@439 2335 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 2336 ctx->heap.front += len+1;
adamc@439 2337 return r;
adamc@439 2338 } else
adamc@439 2339 return "<Invalid time>";
adamc@439 2340 }
adamc@439 2341
adamc@467 2342 char *uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time *t) {
adamc@467 2343 if (t == NULL)
adamc@467 2344 return "NULL";
adamc@467 2345 else
adamc@467 2346 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467 2347 }
adamc@467 2348
adamc@311 2349 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311 2350 static uw_Basis_int true = 1;
adamc@311 2351 static uw_Basis_int false = 0;
adamc@282 2352
adamc@311 2353 if (b == uw_Basis_False)
adamc@282 2354 return (char *)&false;
adamc@282 2355 else
adamc@282 2356 return (char *)&true;
adamc@282 2357 }
adamc@284 2358
adamc@311 2359 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284 2360 int len;
adamc@284 2361 char *r;
adamc@284 2362
adamc@311 2363 uw_check_heap(ctx, INTS_MAX);
adamc@666 2364 r = ctx->heap.front;
adamc@284 2365 sprintf(r, "%lld%n", n, &len);
adamc@666 2366 ctx->heap.front += len+1;
adamc@284 2367 return r;
adamc@284 2368 }
adamc@285 2369
adamc@311 2370 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285 2371 int len;
adamc@285 2372 char *r;
adamc@285 2373
adamc@311 2374 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 2375 r = ctx->heap.front;
adamc@285 2376 sprintf(r, "%g%n", n, &len);
adamc@666 2377 ctx->heap.front += len+1;
adamc@285 2378 return r;
adamc@285 2379 }
adamc@285 2380
adamc@821 2381 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821 2382 char *r = uw_malloc(ctx, 2);
adamc@821 2383 r[0] = ch;
adamc@821 2384 r[1] = 0;
adamc@821 2385 return r;
adamc@821 2386 }
adamc@821 2387
adamc@311 2388 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311 2389 if (b == uw_Basis_False)
adamc@285 2390 return "False";
adamc@285 2391 else
adamc@285 2392 return "True";
adamc@285 2393 }
adamc@288 2394
adamc@436 2395 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436 2396 size_t len;
adamc@436 2397 char *r;
adamc@436 2398 struct tm stm;
adamc@436 2399
adamc@436 2400 if (localtime_r(&t, &stm)) {
adamc@436 2401 uw_check_heap(ctx, TIMES_MAX);
adamc@666 2402 r = ctx->heap.front;
adamc@436 2403 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 2404 ctx->heap.front += len+1;
adamc@436 2405 return r;
adamc@436 2406 } else
adamc@436 2407 return "<Invalid time>";
adamc@436 2408 }
adamc@288 2409
adamc@311 2410 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288 2411 char *endptr;
adamc@311 2412 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288 2413
adamc@288 2414 if (*s != '\0' && *endptr == '\0') {
adamc@311 2415 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288 2416 *r = n;
adamc@288 2417 return r;
adamc@288 2418 } else
adamc@288 2419 return NULL;
adamc@288 2420 }
adamc@289 2421
adamc@311 2422 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289 2423 char *endptr;
adamc@311 2424 uw_Basis_float n = strtod(s, &endptr);
adamc@289 2425
adamc@289 2426 if (*s != '\0' && *endptr == '\0') {
adamc@311 2427 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289 2428 *r = n;
adamc@289 2429 return r;
adamc@289 2430 } else
adamc@289 2431 return NULL;
adamc@289 2432 }
adamc@289 2433
adamc@821 2434 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821 2435 if (s[0] == 0) {
adamc@821 2436 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821 2437 r[0] = 0;
adamc@821 2438 return r;
adamc@821 2439 } else if (s[1] != 0)
adamc@821 2440 return NULL;
adamc@821 2441 else {
adamc@821 2442 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821 2443 r[0] = s[0];
adamc@821 2444 return r;
adamc@821 2445 }
adamc@821 2446 }
adamc@821 2447
adamc@311 2448 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311 2449 static uw_Basis_bool true = uw_Basis_True;
adamc@311 2450 static uw_Basis_bool false = uw_Basis_False;
adamc@289 2451
adamc@289 2452 if (!strcasecmp (s, "True"))
adamc@289 2453 return &true;
adamc@289 2454 else if (!strcasecmp (s, "False"))
adamc@289 2455 return &false;
adamc@289 2456 else
adamc@289 2457 return NULL;
adamc@289 2458 }
adamc@292 2459
adamc@436 2460 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438 2461 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adamc@436 2462 struct tm stm;
adamc@436 2463
adamc@439 2464 if (dot) {
adamc@439 2465 *dot = 0;
adamc@439 2466 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439 2467 *dot = '.';
adamc@439 2468 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439 2469 *r = mktime(&stm);
adamc@439 2470 return r;
adamc@439 2471 }
adamc@439 2472 else {
adamc@439 2473 *dot = '.';
adamc@439 2474 return NULL;
adamc@439 2475 }
adamc@436 2476 }
adamc@439 2477 else {
adamc@439 2478 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439 2479 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439 2480 *r = mktime(&stm);
adamc@439 2481 return r;
adamc@439 2482 }
adamc@439 2483 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439 2484 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439 2485 *r = mktime(&stm);
adamc@439 2486 return r;
adamc@439 2487 }
adamc@439 2488 else
adamc@439 2489 return NULL;
adamc@439 2490 }
adamc@436 2491 }
adamc@436 2492
adamc@311 2493 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292 2494 char *endptr;
adamc@311 2495 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292 2496
adamc@292 2497 if (*s != '\0' && *endptr == '\0')
adamc@292 2498 return n;
adamc@292 2499 else
adamc@311 2500 uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292 2501 }
adamc@293 2502
adamc@682 2503 #include <errno.h>
adamc@682 2504
adamc@678 2505 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682 2506 unsigned long long n;
adamc@682 2507
adamc@682 2508 if (sscanf(s, "%llu", &n) < 1)
adamc@682 2509 uw_error(ctx, FATAL, "Can't parse channel: %s", s);
adamc@682 2510 else {
adamc@682 2511 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682 2512 return ch;
adamc@682 2513 }
adamc@682 2514 }
adamc@682 2515
adamc@682 2516 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678 2517 char *endptr;
adamc@682 2518 unsigned long n = strtoul(s, &endptr, 10);
adamc@678 2519
adamc@678 2520 if (*s != '\0' && *endptr == '\0')
adamc@678 2521 return n;
adamc@678 2522 else
adamc@682 2523 uw_error(ctx, FATAL, "Can't parse client: %s", s);
adamc@678 2524 }
adamc@678 2525
adamc@311 2526 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293 2527 char *endptr;
adamc@311 2528 uw_Basis_float n = strtod(s, &endptr);
adamc@293 2529
adamc@293 2530 if (*s != '\0' && *endptr == '\0')
adamc@293 2531 return n;
adamc@293 2532 else
adamc@311 2533 uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293 2534 }
adamc@293 2535
adamc@821 2536 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821 2537 if (s[0] == 0)
adamc@821 2538 return 0;
adamc@821 2539 else if (s[1] != 0)
adamc@821 2540 uw_error(ctx, FATAL, "Can't parse char: %s", s);
adamc@821 2541 else
adamc@821 2542 return s[0];
adamc@821 2543 }
adamc@821 2544
adamc@311 2545 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296 2546 if (!strcasecmp(s, "T") || !strcasecmp (s, "True"))
adamc@311 2547 return uw_Basis_True;
adamc@296 2548 else if (!strcasecmp(s, "F") || !strcasecmp (s, "False"))
adamc@311 2549 return uw_Basis_False;
adamc@293 2550 else
adamc@311 2551 uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293 2552 }
adamc@436 2553
adamc@436 2554 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438 2555 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adamc@436 2556 struct tm stm = {};
adamc@436 2557
adamc@438 2558 if (dot) {
adamc@438 2559 *dot = 0;
adamc@438 2560 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438 2561 *dot = '.';
adamc@438 2562 return mktime(&stm);
adamc@438 2563 }
adamc@438 2564 else {
adamc@438 2565 *dot = '.';
adamc@438 2566 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438 2567 }
adamc@438 2568 }
adamc@438 2569 else {
adamc@439 2570 if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439 2571 return mktime(&stm);
adamc@439 2572 else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438 2573 return mktime(&stm);
adamc@438 2574 else
adamc@438 2575 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438 2576 }
adamc@436 2577 }
adamc@457 2578
adamc@939 2579 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adamc@939 2580 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adamc@939 2581 struct tm stm = {};
adamc@939 2582
adamc@939 2583 if (dot) {
adamc@939 2584 *dot = 0;
adamc@939 2585 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@939 2586 *dot = '.';
adamc@939 2587 return mktime(&stm);
adamc@939 2588 }
adamc@939 2589 else {
adamc@939 2590 *dot = '.';
adamc@939 2591 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939 2592 }
adamc@939 2593 }
adamc@939 2594 else {
adamc@939 2595 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@939 2596 return mktime(&stm);
adamc@939 2597 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@939 2598 return mktime(&stm);
adamc@939 2599 } else
adamc@939 2600 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939 2601 }
adamc@939 2602 }
adamc@939 2603
adamc@742 2604 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742 2605 char *r = ctx->heap.front;
adamc@742 2606 uw_Basis_blob b = {len, r};
adamc@742 2607
adamc@742 2608 uw_check_heap(ctx, len);
adamc@742 2609
adamc@742 2610 while (*s) {
adamc@742 2611 if (s[0] == '\\') {
adamc@742 2612 if (s[1] == '\\') {
adamc@742 2613 *r++ = '\\';
adamc@742 2614 s += 2;
adamc@742 2615 } else if (isdigit(s[1]) && isdigit(s[2]) && isdigit(s[3])) {
adamc@742 2616 *r++ = (s[1] - '0') * 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742 2617 s += 4;
adamc@742 2618 }
adamc@742 2619 else {
adamc@742 2620 *r++ = '\\';
adamc@742 2621 ++s;
adamc@742 2622 }
adamc@742 2623 } else {
adamc@742 2624 *r++ = s[0];
adamc@742 2625 ++s;
adamc@742 2626 }
adamc@742 2627 }
adamc@742 2628
adamc@742 2629 b.size = r - ctx->heap.front;
adamc@742 2630 ctx->heap.front = r;
adamc@742 2631 return b;
adamc@742 2632 }
adamc@742 2633
adamc@463 2634 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463 2635 int len = strlen(c);
adamc@854 2636 char *p = ctx->outHeaders.start;
adamc@474 2637
adamc@474 2638 while (p = strstr(p, "\nSet-Cookie: ")) {
adamc@474 2639 char *p2;
adamc@474 2640 p += 13;
adamc@474 2641 p2 = strchr(p, '=');
adamc@474 2642
adamc@474 2643 if (p2) {
adamc@474 2644 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474 2645
adamc@474 2646 if (!strncasecmp(p, c, p2 - p)) {
adamc@474 2647 char *ret = uw_malloc(ctx, sz + 1);
adamc@474 2648 memcpy(ret, p2+1, sz);
adamc@474 2649 ret[sz] = 0;
adamc@474 2650 return ret;
adamc@474 2651 }
adamc@474 2652 }
adamc@474 2653 }
adamc@463 2654
adamc@854 2655 if (p = uw_Basis_requestHeader(ctx, "Cookie")) {
adamc@854 2656 while (1) {
adamc@854 2657 if (!strncmp(p, c, len) && p[len] == '=')
adamc@854 2658 return p + 1 + len;
adamc@854 2659 else if (p = strchr(p, ';'))
adamc@854 2660 p += 2;
adamc@463 2661 else
adamc@463 2662 return NULL;
adamc@463 2663 }
adamc@463 2664 }
adamc@792 2665
adamc@792 2666 return NULL;
adamc@457 2667 }
adamc@462 2668
adamc@466 2669 uw_unit uw_Basis_set_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c, uw_Basis_string v) {
adamc@462 2670 uw_write_header(ctx, "Set-Cookie: ");
adamc@462 2671 uw_write_header(ctx, c);
adamc@462 2672 uw_write_header(ctx, "=");
adamc@462 2673 uw_write_header(ctx, v);
adamc@466 2674 uw_write_header(ctx, "; path=");
adamc@466 2675 uw_write_header(ctx, prefix);
adamc@462 2676 uw_write_header(ctx, "\r\n");
adamc@462 2677
adamc@462 2678 return uw_unit_v;
adamc@462 2679 }
adamc@667 2680
adamc@682 2681 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682 2682 unsigned i;
adamc@682 2683 delta *d;
adamc@671 2684
adamc@682 2685 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682 2686 if (ctx->deltas[i].client == client)
adamc@682 2687 return &ctx->deltas[i];
adamc@671 2688
adamc@682 2689 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@682 2690 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adamc@682 2691 buf_init(&ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682 2692 }
adamc@671 2693
adamc@682 2694 d = &ctx->deltas[ctx->used_deltas++];
adamc@682 2695 d->client = client;
adamc@682 2696 buf_reset(&d->msgs);
adamc@682 2697 return d;
adamc@671 2698 }
adamc@671 2699
adamc@668 2700 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682 2701 if (ctx->client == NULL)
adamc@682 2702 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671 2703
adamc@682 2704 return new_channel(ctx->client);
adamc@668 2705 }
adamc@668 2706
adamc@668 2707 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682 2708 delta *d = allocate_delta(ctx, chn.cli);
adamc@682 2709 size_t len;
adamc@682 2710 int preLen;
adamc@682 2711 char pre[INTS_MAX + 2];
adamc@668 2712
adamc@682 2713 len = strlen(msg);
adamc@682 2714
adamc@682 2715 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682 2716
adamc@682 2717 buf_append(&d->msgs, pre, preLen);
adamc@682 2718 buf_append(&d->msgs, msg, len);
adamc@682 2719 buf_append(&d->msgs, "\n", 1);
adamc@671 2720
adamc@671 2721 return uw_unit_v;
adamc@668 2722 }
adamc@671 2723
adamc@671 2724 int uw_db_commit(uw_context);
adamc@671 2725 int uw_db_rollback(uw_context);
adamc@671 2726
adamc@671 2727 void uw_commit(uw_context ctx) {
adamc@682 2728 unsigned i;
adamc@671 2729
adamc@771 2730 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771 2731 if (ctx->transactionals[i].rollback != NULL)
adamc@771 2732 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771 2733
adamc@771 2734 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771 2735 if (ctx->transactionals[i].rollback == NULL)
adamc@771 2736 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771 2737
adamc@771 2738 if (uw_db_commit(ctx))
adamc@671 2739 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@682 2740
adamc@682 2741 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682 2742 delta *d = &ctx->deltas[i];
adamc@682 2743 client *c = find_client(d->client);
adamc@682 2744
adamc@682 2745 assert (c != NULL && c->mode == USED);
adamc@682 2746
adamc@685 2747 client_send(c, &d->msgs);
adamc@682 2748 }
adamc@682 2749
adamc@682 2750 if (ctx->client)
adamc@685 2751 release_client(ctx->client);
adamc@771 2752
adamc@771 2753 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771 2754 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@916 2755
adamc@916 2756 // Splice script data into appropriate part of page
adamc@995 2757 if (ctx->returning_blob || ctx->script_header[0] == 0) {
adamc@995 2758 char *start = strstr(ctx->page.start, "<sc>");
adamc@995 2759 if (start) {
adamc@995 2760 memmove(start, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 4);
adamc@995 2761 ctx->page.front -= 4;
adamc@995 2762 }
adamc@995 2763 } else if (buf_used(&ctx->script) == 0) {
adamc@916 2764 size_t len = strlen(ctx->script_header);
adamc@916 2765 char *start = strstr(ctx->page.start, "<sc>");
adamc@916 2766 if (start) {
adamc@916 2767 buf_check(&ctx->page, buf_used(&ctx->page) - 4 + len);
adamc@917 2768 start = strstr(ctx->page.start, "<sc>");
adamc@916 2769 memmove(start + len, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916 2770 ctx->page.front += len - 4;
adamc@916 2771 memcpy(start, ctx->script_header, len);
adamc@916 2772 }
adamc@916 2773 } else {
adamc@916 2774 size_t lenH = strlen(ctx->script_header), len = buf_used(&ctx->script);
adamc@916 2775 size_t lenP = lenH + 40 + len;
adamc@916 2776 char *start = strstr(ctx->page.start, "<sc>");
adamc@916 2777 if (start) {
adamc@916 2778 buf_check(&ctx->page, buf_used(&ctx->page) - 4 + lenP);
adamc@917 2779 start = strstr(ctx->page.start, "<sc>");
adamc@916 2780 memmove(start + lenP, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916 2781 ctx->page.front += lenP - 4;
adamc@916 2782 memcpy(start, ctx->script_header, lenH);
adamc@916 2783 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916 2784 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916 2785 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916 2786 }
adamc@916 2787 }
adamc@671 2788 }
adamc@671 2789
adamc@671 2790 int uw_rollback(uw_context ctx) {
adamc@771 2791 size_t i;
adamc@885 2792 cleanup *cl;
adamc@771 2793
adamc@682 2794 if (ctx->client)
adamc@685 2795 release_client(ctx->client);
adamc@671 2796
adamc@885 2797 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@885 2798 cl->func(cl->arg);
adamc@885 2799
adamc@885 2800 ctx->cleanup_front = ctx->cleanup;
adamc@885 2801
adamc@771 2802 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771 2803 if (ctx->transactionals[i].rollback != NULL)
adamc@771 2804 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@771 2805
adamc@771 2806 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771 2807 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@771 2808
adamc@671 2809 return uw_db_rollback(ctx);
adamc@671 2810 }
adamc@683 2811
adamc@771 2812 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adamc@771 2813 uw_callback free) {
adamc@771 2814 if (commit == NULL)
adamc@771 2815 uw_error(ctx, FATAL, "uw_register_transactional: NULL commit callback");
adamc@771 2816
adamc@771 2817 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@771 2818 ctx->transactionals = realloc(ctx->transactionals, ctx->used_transactionals+1);
adamc@771 2819 ++ctx->n_transactionals;
adamc@771 2820 }
adamc@771 2821
adamc@771 2822 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771 2823 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771 2824 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771 2825 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771 2826 }
adamc@771 2827
adamc@683 2828
adamc@683 2829 // "Garbage collection"
adamc@683 2830
adamc@683 2831 void uw_expunger(uw_context ctx, uw_Basis_client cli);
adamc@683 2832
adamc@683 2833 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli) {
adamc@683 2834 int r = setjmp(ctx->jmp_buf);
adamc@683 2835
adamc@684 2836 if (r == 0) {
adamc@684 2837 if (uw_db_begin(ctx))
adamc@684 2838 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@683 2839 uw_expunger(ctx, cli);
adamc@684 2840 if (uw_db_commit(ctx))
adamc@684 2841 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@684 2842 }
adamc@683 2843
adamc@683 2844 return r;
adamc@683 2845 }
adamc@683 2846
adamc@683 2847 void uw_prune_clients(uw_context ctx) {
adamc@683 2848 client *c, *next, *prev = NULL;
adamc@683 2849 time_t cutoff;
adamc@683 2850
adamc@683 2851 cutoff = time(NULL) - uw_timeout;
adamc@683 2852
adamc@683 2853 pthread_mutex_lock(&clients_mutex);
adamc@683 2854
adamc@683 2855 for (c = clients_used; c; c = next) {
adamc@683 2856 next = c->next;
adamc@683 2857 pthread_mutex_lock(&c->lock);
adamc@685 2858 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683 2859 failure_kind fk = UNLIMITED_RETRY;
adamc@683 2860 if (prev)
adamc@683 2861 prev->next = next;
adamc@683 2862 else
adamc@683 2863 clients_used = next;
adamc@684 2864 uw_reset(ctx);
adamc@683 2865 while (fk == UNLIMITED_RETRY) {
adamc@683 2866 fk = uw_expunge(ctx, c->id);
adamc@684 2867 if (fk == UNLIMITED_RETRY) {
adamc@684 2868 uw_db_rollback(ctx);
adamc@684 2869 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683 2870 }
adamc@683 2871 }
adamc@684 2872 if (fk == SUCCESS)
adamc@684 2873 free_client(c);
adamc@684 2874 else {
adamc@684 2875 uw_db_rollback(ctx);
adamc@856 2876 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@684 2877 }
adamc@683 2878 }
adamc@683 2879 else
adamc@683 2880 prev = c;
adamc@683 2881 pthread_mutex_unlock(&c->lock);
adamc@683 2882 }
adamc@683 2883
adamc@683 2884 pthread_mutex_unlock(&clients_mutex);
adamc@683 2885 }
adamc@687 2886
adamc@687 2887 void uw_initializer(uw_context ctx);
adamc@687 2888
adamc@687 2889 failure_kind uw_initialize(uw_context ctx) {
adamc@687 2890 int r = setjmp(ctx->jmp_buf);
adamc@687 2891
adamc@687 2892 if (r == 0) {
adamc@687 2893 if (uw_db_begin(ctx))
adamc@687 2894 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@687 2895 uw_initializer(ctx);
adamc@687 2896 if (uw_db_commit(ctx))
adamc@687 2897 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687 2898 }
adamc@687 2899
adamc@687 2900 return r;
adamc@687 2901 }
adamc@717 2902
adamc@770 2903 extern int uw_check_url(const char *);
adamc@770 2904 extern int uw_check_mime(const char *);
adamc@770 2905
adamc@717 2906 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@770 2907 if (uw_check_url(s))
adamc@770 2908 return s;
adamc@770 2909 else
adamc@770 2910 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717 2911 }
adamc@734 2912
adamc@770 2913 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@770 2914 if (uw_check_url(s))
adamc@770 2915 return s;
adamc@770 2916 else
adamc@770 2917 return NULL;
adamc@770 2918 }
adamc@770 2919
adamc@770 2920 int mime_format(const char *s) {
adamc@770 2921 for (; *s; ++s)
adamc@770 2922 if (!isalnum(*s) && *s != '/' && *s != '-' && *s != '.')
adamc@770 2923 return 0;
adamc@770 2924
adamc@770 2925 return 1;
adamc@770 2926 }
adamc@770 2927
adamc@741 2928 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770 2929 if (!mime_format(s))
adamc@770 2930 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770 2931
adamc@770 2932 if (uw_check_mime(s))
adamc@770 2933 return s;
adamc@770 2934 else
adamc@770 2935 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770 2936 }
adamc@770 2937
adamc@770 2938 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770 2939 if (!mime_format(s))
adamc@770 2940 return NULL;
adamc@770 2941
adamc@770 2942 if (uw_check_mime(s))
adamc@770 2943 return s;
adamc@770 2944 else
adamc@770 2945 return NULL;
adamc@741 2946 }
adamc@741 2947
adamc@734 2948 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734 2949 return s ? s : "";
adamc@734 2950 }
adamc@734 2951
adamc@734 2952 extern int uw_hash_blocksize;
adamc@734 2953
adamc@734 2954 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734 2955 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734 2956 int i;
adamc@734 2957
adamc@734 2958 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734 2959 sprintf(&r[2*i], "%.02X", ((unsigned char *)sig)[i]);
adamc@734 2960
adamc@734 2961 return r;
adamc@734 2962 }
adamc@734 2963
adamc@734 2964 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@734 2965 return uw_cookie_sig(ctx);
adamc@734 2966 }
adamc@737 2967
adamc@737 2968 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737 2969 return f.name;
adamc@737 2970 }
adamc@737 2971
adamc@740 2972 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740 2973 return f.type;
adamc@740 2974 }
adamc@740 2975
adamc@745 2976 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745 2977 return b.size;
adamc@745 2978 }
adamc@745 2979
adamc@737 2980 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737 2981 return f.data;
adamc@737 2982 }
adamc@741 2983
adamc@741 2984 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741 2985 cleanup *cl;
adamc@741 2986 int len;
adamc@741 2987
adamc@921 2988 ctx->returning_blob = 1;
adamc@741 2989 buf_reset(&ctx->outHeaders);
adamc@741 2990 buf_reset(&ctx->page);
adamc@741 2991
adamc@856 2992 uw_write_header(ctx, on_success);
adamc@856 2993 uw_write_header(ctx, "Content-Type: ");
adamc@741 2994 uw_write_header(ctx, mimeType);
adamc@741 2995 uw_write_header(ctx, "\r\nContent-Length: ");
adamc@741 2996 buf_check(&ctx->outHeaders, INTS_MAX);
adamc@741 2997 sprintf(ctx->outHeaders.front, "%d%n", b.size, &len);
adamc@741 2998 ctx->outHeaders.front += len;
adamc@741 2999 uw_write_header(ctx, "\r\n");
adamc@741 3000
adamc@741 3001 buf_append(&ctx->page, b.data, b.size);
adamc@741 3002
adamc@741 3003 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741 3004 cl->func(cl->arg);
adamc@741 3005
adamc@741 3006 ctx->cleanup_front = ctx->cleanup;
adamc@741 3007
adamc@741 3008 longjmp(ctx->jmp_buf, RETURN_BLOB);
adamc@741 3009 }
adamc@874 3010
adamc@874 3011 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adamc@874 3012 uw_Basis_string r = uw_malloc(ctx, strlen(s) + 1);
adamc@874 3013
adamc@874 3014 for (; *s; ++s) {
adamc@874 3015 if (s[0] == '\'') {
adamc@874 3016 *r++ = '\'';
adamc@874 3017 for (++s; *s; ++s) {
adamc@874 3018 if (s[0] == '\'') {
adamc@874 3019 *r++ = '\'';
adamc@874 3020 break;
adamc@874 3021 } else if (s[0] == '\\') {
adamc@874 3022 if (s[1] == '\\') {
adamc@874 3023 *r++ = '\\';
adamc@874 3024 *r++ = '\\';
adamc@874 3025 ++s;
adamc@874 3026 } else if (s[1] == '\'') {
adamc@874 3027 *r++ = '\\';
adamc@874 3028 *r++ = '\'';
adamc@874 3029 ++s;
adamc@874 3030 } else
adamc@874 3031 *r++ = '\'';
adamc@874 3032 } else
adamc@874 3033 *r++ = s[0];
adamc@874 3034 }
adamc@874 3035 if (*s == 0) break;
adamc@874 3036 } else if (s[0] == 'T' && s[1] == '.')
adamc@874 3037 ++s;
adamc@874 3038 else
adamc@874 3039 *r++ = s[0];
adamc@874 3040 }
adamc@874 3041
adamc@874 3042 return r;
adamc@874 3043 }
adamc@874 3044
adamc@922 3045 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922 3046 va_list ap;
adamc@922 3047 size_t len = 1;
adamc@922 3048 char *s, *r, *s2;
adamc@922 3049
adamc@922 3050 va_start(ap, ctx);
adamc@922 3051 for (s = va_arg(ap, char*); s; s = va_arg(ap, char*))
adamc@922 3052 len += strlen(s);
adamc@922 3053 va_end(ap);
adamc@922 3054
adamc@922 3055 r = uw_malloc(ctx, len);
adamc@922 3056 va_start(ap, ctx);
adamc@922 3057 for (s2 = r, s = va_arg(ap, char*); s; s = va_arg(ap, char*))
adamc@922 3058 while (*s)
adamc@922 3059 *s2++ = *s++;
adamc@922 3060 va_end(ap);
adamc@922 3061 *s2 = 0;
adamc@922 3062
adamc@922 3063 return r;
adamc@922 3064 }
adamc@1006 3065
adamc@1006 3066 uw_Basis_time uw_Basis_now(uw_context ctx) {
adamc@1006 3067 return time(NULL);
adamc@1006 3068 }