annotate src/c/urweb.c @ 1539:dde3bd82cb3d

List.mapXi
author Adam Chlipala <adam@chlipala.net>
date Mon, 15 Aug 2011 10:22:09 -0400
parents 3c0803c1acd7
children 5175bed443f9
rev   line source
adamc@1268 1 #include "config.h"
adamc@1268 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@1114 12 #include <limits.h>
adamc@1113 13 #include <stdint.h>
adamc@1094 14 #include <sys/types.h>
adamc@1094 15 #include <sys/socket.h>
adam@1397 16 #include <openssl/des.h>
adam@1486 17 #include <openssl/rand.h>
adam@1374 18 #include <time.h>
adamc@102 19
adamc@667 20 #include <pthread.h>
adamc@667 21
adamc@102 22 #include "types.h"
adamc@102 23
adam@1431 24 uw_unit uw_unit_v = 0;
adamc@102 25
adamc@667 26
adamc@667 27 // Socket extras
adamc@667 28
adamc@863 29 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667 30 while (len > 0) {
adamc@856 31 ssize_t n = send(sock, buf, len, 0);
adamc@856 32
adamc@856 33 if (n < 0)
adamc@856 34 return n;
adamc@856 35
adamc@856 36 buf += n;
adamc@856 37 len -= n;
adamc@856 38 }
adamc@856 39
adamc@856 40 return 0;
adamc@856 41 }
adamc@856 42
adamc@856 43 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856 44 while (len > 0) {
adamc@856 45 ssize_t n = write(fd, buf, len);
adamc@667 46
adamc@667 47 if (n < 0)
adamc@667 48 return n;
adamc@667 49
adamc@667 50 buf += n;
adamc@667 51 len -= n;
adamc@667 52 }
adamc@667 53
adamc@667 54 return 0;
adamc@667 55 }
adamc@667 56
adamc@667 57
adamc@667 58 // Buffers
adamc@667 59
adam@1369 60 void uw_buffer_init(size_t max, uw_buffer *b, size_t s) {
adamc@1113 61 b->max = max;
adamc@667 62 b->front = b->start = malloc(s);
adamc@667 63 b->back = b->front + s;
adamc@667 64 }
adamc@667 65
adam@1369 66 void uw_buffer_free(uw_buffer *b) {
adamc@667 67 free(b->start);
adamc@667 68 }
adamc@667 69
adam@1369 70 void uw_buffer_reset(uw_buffer *b) {
adamc@667 71 b->front = b->start;
adamc@667 72 }
adamc@667 73
adam@1369 74 int uw_buffer_check(uw_buffer *b, size_t extra) {
adamc@667 75 if (b->back - b->front < extra) {
adamc@667 76 size_t desired = b->front - b->start + extra, next;
adamc@667 77 char *new_heap;
adamc@667 78
adamc@667 79 next = b->back - b->start;
adamc@667 80 if (next == 0)
adamc@667 81 next = 1;
adamc@667 82 for (; next < desired; next *= 2);
adamc@667 83
adamc@1134 84 if (next > b->max) {
adamc@1113 85 if (desired <= b->max)
adamc@1113 86 next = desired;
adamc@1113 87 else
adamc@1113 88 return 1;
adamc@1134 89 }
adamc@1113 90
adamc@667 91 new_heap = realloc(b->start, next);
adamc@667 92 b->front = new_heap + (b->front - b->start);
adamc@667 93 b->back = new_heap + next;
adamc@667 94 b->start = new_heap;
adamc@667 95 }
adamc@1113 96
adamc@1113 97 return 0;
adamc@1113 98 }
adamc@1113 99
adamc@1113 100 __attribute__((noreturn)) void uw_error(uw_context, failure_kind, const char *, ...);
adamc@1113 101
adam@1369 102 static void ctx_uw_buffer_check(uw_context ctx, const char *kind, uw_buffer *b, size_t extra) {
adam@1369 103 if (uw_buffer_check(b, extra))
adamc@1113 104 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@667 105 }
adamc@667 106
adam@1369 107 size_t uw_buffer_used(uw_buffer *b) {
adamc@667 108 return b->front - b->start;
adamc@667 109 }
adamc@667 110
adam@1369 111 size_t uw_buffer_avail(uw_buffer *b) {
adamc@667 112 return b->back - b->start;
adamc@667 113 }
adamc@667 114
adam@1369 115 int uw_buffer_append(uw_buffer *b, const char *s, size_t len) {
adam@1369 116 if (uw_buffer_check(b, len+1))
adamc@1113 117 return 1;
adamc@1113 118
adamc@1113 119 memcpy(b->front, s, len);
adamc@1113 120 b->front += len;
adamc@1113 121 *b->front = 0;
adamc@1113 122
adamc@1113 123 return 0;
adamc@1113 124 }
adamc@1113 125
adam@1369 126 static void ctx_uw_buffer_append(uw_context ctx, const char *kind, uw_buffer *b, const char *s, size_t len) {
adam@1369 127 ctx_uw_buffer_check(ctx, kind, b, len+1);
adamc@1113 128
adamc@668 129 memcpy(b->front, s, len);
adamc@668 130 b->front += len;
adamc@672 131 *b->front = 0;
adamc@668 132 }
adamc@667 133
adamc@668 134
adamc@672 135 // Persistent state types
adamc@667 136
adamc@667 137 typedef enum { UNUSED, USED } usage;
adamc@667 138
adamc@667 139 typedef struct client {
adamc@682 140 unsigned id;
adamc@667 141 usage mode;
adamc@682 142 int pass;
adamc@682 143 struct client *next;
adamc@689 144 pthread_mutex_t lock, pull_lock;
adam@1369 145 uw_buffer msgs;
adamc@682 146 int sock;
adamc@863 147 int (*send)(int sockfd, const void *buf, ssize_t len);
adamc@863 148 int (*close)(int fd);
adamc@682 149 time_t last_contact;
adamc@682 150 unsigned n_channels;
adamc@685 151 unsigned refcount;
adamc@1121 152 void *data;
adamc@667 153 } client;
adamc@667 154
adamc@672 155
adamc@672 156 // Persistent client state
adamc@672 157
adamc@682 158 static client **clients, *clients_free, *clients_used;
adamc@682 159 static unsigned n_clients;
adamc@667 160
adamc@667 161 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@667 162
adamc@1113 163 size_t uw_messages_max = SIZE_MAX;
adamc@1113 164 size_t uw_clients_max = SIZE_MAX;
adamc@1113 165
adamc@1121 166 void *uw_init_client_data();
adamc@1121 167 void uw_free_client_data(void *);
adamc@1121 168 void uw_copy_client_data(void *dst, void *src);
adamc@1121 169
adamc@682 170 static client *new_client() {
adamc@667 171 client *c;
adamc@667 172
adamc@667 173 pthread_mutex_lock(&clients_mutex);
adamc@667 174
adamc@667 175 if (clients_free) {
adamc@667 176 c = clients_free;
adamc@682 177 clients_free = clients_free->next;
adamc@667 178 }
adamc@1113 179 else if (n_clients >= uw_clients_max)
adamc@1113 180 return NULL;
adamc@667 181 else {
adamc@667 182 ++n_clients;
adamc@667 183 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667 184 c = malloc(sizeof(client));
adamc@667 185 c->id = n_clients-1;
adamc@682 186 pthread_mutex_init(&c->lock, NULL);
adamc@689 187 pthread_mutex_init(&c->pull_lock, NULL);
adam@1369 188 uw_buffer_init(uw_messages_max, &c->msgs, 0);
adamc@667 189 clients[n_clients-1] = c;
adamc@667 190 }
adamc@667 191
adamc@682 192 pthread_mutex_lock(&c->lock);
adamc@667 193 c->mode = USED;
adamc@682 194 c->pass = rand();
adamc@682 195 c->sock = -1;
adamc@682 196 c->last_contact = time(NULL);
adam@1369 197 uw_buffer_reset(&c->msgs);
adamc@682 198 c->n_channels = 0;
adamc@685 199 c->refcount = 0;
adamc@1121 200 c->data = uw_init_client_data();
adamc@682 201 pthread_mutex_unlock(&c->lock);
adamc@682 202
adamc@682 203 c->next = clients_used;
adamc@682 204 clients_used = c;
adamc@667 205
adamc@667 206 pthread_mutex_unlock(&clients_mutex);
adamc@667 207
adamc@667 208 return c;
adamc@667 209 }
adamc@667 210
adamc@685 211 static void use_client(client *c) {
adamc@685 212 pthread_mutex_lock(&c->lock);
adamc@685 213 ++c->refcount;
adamc@685 214 pthread_mutex_unlock(&c->lock);
adamc@689 215 pthread_mutex_lock(&c->pull_lock);
adamc@685 216 }
adamc@685 217
adamc@685 218 static void release_client(client *c) {
adamc@689 219 pthread_mutex_unlock(&c->pull_lock);
adamc@685 220 pthread_mutex_lock(&c->lock);
adamc@685 221 --c->refcount;
adamc@685 222 pthread_mutex_unlock(&c->lock);
adamc@689 223
adamc@685 224 }
adamc@685 225
adamc@856 226 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adamc@667 227
adamc@682 228 static client *find_client(unsigned id) {
adamc@667 229 client *c;
adamc@667 230
adamc@667 231 pthread_mutex_lock(&clients_mutex);
adamc@667 232
adamc@667 233 if (id >= n_clients) {
adamc@667 234 pthread_mutex_unlock(&clients_mutex);
adamc@668 235 return NULL;
adamc@667 236 }
adamc@667 237
adamc@667 238 c = clients[id];
adamc@667 239
adamc@668 240 pthread_mutex_unlock(&clients_mutex);
adamc@668 241 return c;
adamc@668 242 }
adamc@668 243
adamc@856 244 static char *on_success = "HTTP/1.1 200 OK\r\n";
adam@1409 245 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856 246
adamc@856 247 void uw_set_on_success(char *s) {
adamc@856 248 on_success = s;
adamc@856 249 }
adamc@856 250
adamc@863 251 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863 252 int (*send)(int sockfd, const void *buf, ssize_t len),
adamc@864 253 int (*close)(int fd),
adamc@864 254 void *logger_data, uw_logger log_error) {
adamc@682 255 client *c = find_client(id);
adamc@668 256
adamc@668 257 if (c == NULL) {
adamc@667 258 close(sock);
adamc@864 259 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667 260 return;
adamc@667 261 }
adamc@667 262
adamc@682 263 pthread_mutex_lock(&c->lock);
adamc@671 264
adamc@682 265 if (c->mode != USED) {
adamc@682 266 pthread_mutex_unlock(&c->lock);
adamc@667 267 close(sock);
adamc@864 268 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667 269 return;
adamc@667 270 }
adamc@667 271
adamc@682 272 if (pass != c->pass) {
adamc@682 273 pthread_mutex_unlock(&c->lock);
adamc@682 274 close(sock);
adamc@864 275 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682 276 return;
adamc@667 277 }
adamc@667 278
adamc@682 279 if (c->sock != -1) {
adamc@863 280 c->close(c->sock);
adamc@682 281 c->sock = -1;
adamc@682 282 }
adamc@667 283
adamc@682 284 c->last_contact = time(NULL);
adamc@682 285
adam@1369 286 if (uw_buffer_used(&c->msgs) > 0) {
adamc@863 287 send(sock, on_success, strlen(on_success));
adamc@863 288 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1369 289 send(sock, c->msgs.start, uw_buffer_used(&c->msgs));
adam@1369 290 uw_buffer_reset(&c->msgs);
adamc@667 291 close(sock);
adamc@667 292 }
adamc@863 293 else {
adamc@682 294 c->sock = sock;
adamc@863 295 c->send = send;
adamc@863 296 c->close = close;
adamc@863 297 }
adamc@667 298
adamc@682 299 pthread_mutex_unlock(&c->lock);
adamc@667 300 }
adamc@667 301
adamc@682 302 static void free_client(client *c) {
adamc@682 303 c->mode = UNUSED;
adamc@682 304 c->pass = -1;
adamc@667 305
adamc@682 306 c->next = clients_free;
adamc@682 307 clients_free = c;
adamc@667 308 }
adamc@667 309
adamc@682 310 static uw_Basis_channel new_channel(client *c) {
adamc@682 311 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668 312 return ch;
adamc@668 313 }
adamc@668 314
adam@1447 315 static void client_send(client *c, uw_buffer *msg, const char *script, int script_len) {
adamc@685 316 pthread_mutex_lock(&c->lock);
adamc@671 317
adamc@682 318 if (c->sock != -1) {
adamc@863 319 c->send(c->sock, on_success, strlen(on_success));
adamc@863 320 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1447 321 if (script_len > 0) {
adam@1447 322 c->send(c->sock, "E\n", 2);
adam@1447 323 c->send(c->sock, script, script_len);
adam@1447 324 c->send(c->sock, "\n", 1);
adam@1447 325 }
adam@1369 326 c->send(c->sock, msg->start, uw_buffer_used(msg));
adamc@863 327 c->close(c->sock);
adamc@682 328 c->sock = -1;
adam@1447 329 } else if ((script_len > 0
adam@1447 330 && (c->send(c->sock, "E\n", 2)
adam@1447 331 || c->send(c->sock, script, script_len)
adam@1447 332 || c->send(c->sock, "\n", 1)))
adam@1447 333 || uw_buffer_append(&c->msgs, msg->start, uw_buffer_used(msg)))
adamc@1113 334 fprintf(stderr, "Client message buffer size exceeded");
adamc@671 335
adamc@685 336 pthread_mutex_unlock(&c->lock);
adamc@668 337 }
adamc@668 338
adamc@668 339
adamc@668 340 // Global entry points
adamc@668 341
adamc@1164 342 extern void uw_global_custom();
adamc@1104 343 extern void uw_init_crypto();
adamc@1104 344
adamc@668 345 void uw_global_init() {
adamc@668 346 srand(time(NULL) ^ getpid());
adamc@668 347
adamc@668 348 clients = malloc(0);
adamc@1104 349
adamc@1164 350 uw_global_custom();
adamc@1104 351 uw_init_crypto();
adamc@1094 352 }
adamc@1094 353
adamc@1094 354 void uw_app_init(uw_app *app) {
adamc@1094 355 app->client_init();
adamc@668 356 }
adamc@668 357
adam@1332 358 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114 359
adamc@668 360
adamc@667 361 // Single-request state
adamc@667 362
adamc@323 363 typedef struct regions {
adamc@323 364 struct regions *next;
adamc@323 365 } regions;
adamc@323 366
adamc@425 367 typedef struct {
adamc@425 368 void (*func)(void*);
adamc@425 369 void *arg;
adamc@425 370 } cleanup;
adamc@425 371
adamc@671 372 typedef struct {
adamc@682 373 unsigned client;
adam@1369 374 uw_buffer msgs;
adamc@682 375 } delta;
adamc@671 376
adamc@737 377 typedef enum {
adamc@759 378 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737 379 } input_kind;
adamc@737 380
adamc@756 381 typedef struct input {
adamc@737 382 input_kind kind;
adamc@737 383 union {
adamc@737 384 char *normal;
adamc@739 385 uw_Basis_file file;
adamc@756 386 struct {
adamc@759 387 struct input *fields, *parent;
adamc@756 388 } subform;
adamc@759 389 struct {
adamc@759 390 struct input *entries, *parent;
adamc@759 391 } subforms;
adamc@759 392 struct {
adamc@759 393 struct input *fields, *next, *parent;
adamc@759 394 } entry;
adamc@737 395 } data;
adamc@737 396 } input;
adamc@737 397
adamc@771 398 typedef struct {
adamc@771 399 void *data;
adam@1327 400 uw_callback commit, rollback;
adam@1327 401 uw_callback_with_retry free;
adamc@771 402 } transactional;
adamc@771 403
adamc@1061 404 typedef struct {
adamc@1061 405 char *name;
adamc@1061 406 void *data;
adamc@1061 407 void (*free)(void*);
adamc@1061 408 } global;
adamc@1061 409
adamc@311 410 struct uw_context {
adamc@1094 411 uw_app *app;
adam@1446 412 int id;
adamc@1094 413
adamc@854 414 char *(*get_header)(void *, const char *);
adamc@854 415 void *get_header_data;
adamc@457 416
adam@1369 417 uw_buffer outHeaders, page, heap, script;
adam@1451 418 int allowed_to_return_indirectly, returning_indirectly;
adamc@759 419 input *inputs, *subinputs, *cur_container;
adamc@1094 420 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167 421
adam@1446 422 unsigned long long source_count;
adamc@562 423
adamc@272 424 void *db;
adamc@272 425
adamc@167 426 jmp_buf jmp_buf;
adamc@167 427
adamc@323 428 regions *regions;
adamc@323 429
adamc@425 430 cleanup *cleanup, *cleanup_front, *cleanup_back;
adamc@425 431
adamc@1094 432 const char *script_header;
adamc@643 433
adamc@736 434 int needs_push, needs_sig;
adamc@693 435
adamc@682 436 size_t n_deltas, used_deltas;
adamc@682 437 delta *deltas;
adamc@671 438
adamc@682 439 client *client;
adamc@682 440
adamc@771 441 transactional *transactionals;
adamc@771 442 size_t n_transactionals, used_transactionals;
adamc@771 443
adamc@1061 444 global *globals;
adamc@1061 445 size_t n_globals;
adamc@1061 446
adamc@1066 447 char *current_url;
adamc@1066 448
adamc@1114 449 int deadline;
adamc@1114 450
adamc@1121 451 void *client_data;
adamc@1121 452
adam@1334 453 void *logger_data;
adam@1334 454 uw_logger log_debug;
adam@1334 455
adam@1386 456 int isPost, hasPostBody;
adam@1347 457 uw_Basis_postBody postBody;
adam@1370 458 uw_Basis_string queryString;
adam@1347 459
adamc@167 460 char error_message[ERROR_BUF_LEN];
adamc@117 461 };
adamc@117 462
adamc@1113 463 size_t uw_headers_max = SIZE_MAX;
adamc@1113 464 size_t uw_page_max = SIZE_MAX;
adamc@1113 465 size_t uw_heap_max = SIZE_MAX;
adamc@1113 466 size_t uw_script_max = SIZE_MAX;
adamc@1113 467
adam@1446 468 uw_context uw_init(int id, void *logger_data, uw_logger log_debug) {
adamc@311 469 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136 470
adamc@1094 471 ctx->app = NULL;
adam@1446 472 ctx->id = id;
adamc@1094 473
adamc@854 474 ctx->get_header = NULL;
adamc@854 475 ctx->get_header_data = NULL;
adamc@457 476
adam@1413 477 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413 478 ctx->outHeaders.start[0] = 0;
adam@1413 479 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413 480 ctx->page.start[0] = 0;
adam@1451 481 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369 482 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369 483 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667 484 ctx->script.start[0] = 0;
adamc@136 485
adamc@1094 486 ctx->inputs = malloc(0);
adamc@759 487 ctx->cur_container = NULL;
adamc@756 488 ctx->subinputs = malloc(0);
adamc@1094 489 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144 490
adamc@272 491 ctx->db = NULL;
adamc@272 492
adamc@323 493 ctx->regions = NULL;
adamc@323 494
adamc@425 495 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425 496
adamc@643 497 ctx->script_header = "";
adamc@693 498 ctx->needs_push = 0;
adamc@736 499 ctx->needs_sig = 0;
adamc@1104 500
adamc@565 501 ctx->source_count = 0;
adamc@562 502
adamc@682 503 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671 504 ctx->deltas = malloc(0);
adamc@671 505
adamc@700 506 ctx->client = NULL;
adamc@700 507
adamc@700 508 ctx->error_message[0] = 0;
adamc@700 509
adamc@771 510 ctx->transactionals = malloc(0);
adamc@771 511 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771 512
adamc@1061 513 ctx->globals = malloc(0);
adamc@1061 514 ctx->n_globals = 0;
adamc@1061 515
adamc@1066 516 ctx->current_url = "";
adamc@1066 517
adamc@1114 518 ctx->deadline = INT_MAX;
adamc@1114 519
adamc@1121 520 ctx->client_data = uw_init_client_data();
adamc@1121 521
adam@1334 522 ctx->logger_data = logger_data;
adam@1334 523 ctx->log_debug = log_debug;
adam@1334 524
adam@1386 525 ctx->isPost = ctx->hasPostBody = 0;
adam@1347 526
adam@1370 527 ctx->queryString = NULL;
adam@1370 528
adamc@117 529 return ctx;
adamc@106 530 }
adamc@106 531
adamc@1113 532 size_t uw_inputs_max = SIZE_MAX;
adamc@1113 533
adamc@1121 534 uw_app *uw_get_app(uw_context ctx) {
adamc@1121 535 return ctx->app;
adamc@1121 536 }
adamc@1121 537
adamc@1113 538 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094 539 ctx->app = app;
adamc@1094 540
adamc@1105 541 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113 542 if (app->inputs_len > uw_inputs_max)
adamc@1113 543 return 1;
adamc@1113 544
adamc@1094 545 ctx->sz_inputs = app->inputs_len;
adamc@1094 546 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094 547 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094 548 }
adamc@1134 549
adamc@1134 550 return 0;
adamc@1094 551 }
adamc@1094 552
adamc@1121 553 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121 554 uw_copy_client_data(ctx->client_data, data);
adamc@1121 555 }
adamc@1121 556
adamc@311 557 void uw_set_db(uw_context ctx, void *db) {
adamc@272 558 ctx->db = db;
adamc@272 559 }
adamc@272 560
adamc@311 561 void *uw_get_db(uw_context ctx) {
adamc@272 562 return ctx->db;
adamc@272 563 }
adamc@272 564
adamc@311 565 void uw_free(uw_context ctx) {
adamc@671 566 size_t i;
adamc@671 567
adam@1369 568 uw_buffer_free(&ctx->outHeaders);
adam@1369 569 uw_buffer_free(&ctx->script);
adam@1369 570 uw_buffer_free(&ctx->page);
adam@1369 571 uw_buffer_free(&ctx->heap);
adamc@144 572 free(ctx->inputs);
adamc@756 573 free(ctx->subinputs);
adamc@425 574 free(ctx->cleanup);
adamc@771 575 free(ctx->transactionals);
adamc@1121 576 uw_free_client_data(ctx->client_data);
adamc@671 577
adamc@682 578 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369 579 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330 580 free(ctx->deltas);
adamc@671 581
adamc@1061 582 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089 583 if (ctx->globals[i].free)
adamc@1089 584 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330 585 free(ctx->globals);
adamc@1061 586
adamc@136 587 free(ctx);
adamc@136 588 }
adamc@136 589
adamc@562 590 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369 591 uw_buffer_reset(&ctx->outHeaders);
adam@1369 592 uw_buffer_reset(&ctx->script);
adamc@667 593 ctx->script.start[0] = 0;
adam@1369 594 uw_buffer_reset(&ctx->page);
adam@1451 595 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369 596 uw_buffer_reset(&ctx->heap);
adamc@323 597 ctx->regions = NULL;
adamc@425 598 ctx->cleanup_front = ctx->cleanup;
adamc@682 599 ctx->used_deltas = 0;
adamc@682 600 ctx->client = NULL;
adamc@759 601 ctx->cur_container = NULL;
adamc@771 602 ctx->used_transactionals = 0;
adamc@1117 603 ctx->script_header = "";
adam@1370 604 ctx->queryString = NULL;
adamc@167 605 }
adamc@167 606
adamc@562 607 void uw_reset_keep_request(uw_context ctx) {
adamc@562 608 uw_reset_keep_error_message(ctx);
adamc@562 609 ctx->error_message[0] = 0;
adamc@167 610 }
adamc@167 611
adamc@311 612 void uw_reset(uw_context ctx) {
adamc@311 613 uw_reset_keep_request(ctx);
adamc@1105 614 if (ctx->app)
adamc@1105 615 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756 616 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461 617 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adamc@144 618 }
adamc@144 619
adamc@311 620 failure_kind uw_begin_init(uw_context ctx) {
adamc@272 621 int r = setjmp(ctx->jmp_buf);
adamc@272 622
adamc@1105 623 if (r == 0 && ctx->app)
adamc@1094 624 ctx->app->db_init(ctx);
adamc@272 625
adamc@272 626 return r;
adamc@272 627 }
adamc@272 628
adamc@1118 629 void uw_close(uw_context ctx) {
adamc@1118 630 ctx->app->db_close(ctx);
adamc@1118 631 }
adamc@1118 632
adam@1446 633 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446 634 return ctx->get_header(ctx->get_header_data, h);
adam@1446 635 }
adam@1446 636
adamc@854 637 void uw_set_headers(uw_context ctx, char *(*get_header)(void *, const char *), void *get_header_data) {
adamc@854 638 ctx->get_header = get_header;
adamc@854 639 ctx->get_header_data = get_header_data;
adamc@742 640 }
adamc@742 641
adamc@801 642 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801 643 va_list ap;
adamc@801 644 va_start(ap, fmt);
adamc@801 645
adamc@801 646 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801 647 }
adamc@801 648
adamc@1131 649 int uw_has_error(uw_context ctx) {
adamc@1131 650 return ctx->error_message[0] != 0;
adamc@1131 651 }
adamc@1131 652
adamc@311 653 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425 654 cleanup *cl;
adamc@425 655
adamc@167 656 va_list ap;
adamc@167 657 va_start(ap, fmt);
adamc@167 658
adamc@167 659 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167 660
adamc@425 661 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425 662 cl->func(cl->arg);
adamc@425 663
adamc@425 664 ctx->cleanup_front = ctx->cleanup;
adamc@425 665
adamc@190 666 longjmp(ctx->jmp_buf, fk);
adamc@167 667 }
adamc@167 668
adamc@1113 669 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113 670
adamc@425 671 void uw_push_cleanup(uw_context ctx, void (*func)(void *), void *arg) {
adamc@425 672 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425 673 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425 674 if (len == 0)
adamc@425 675 newLen = 1;
adamc@425 676 else
adamc@428 677 newLen = len * 2;
adamc@1113 678
adamc@1134 679 if (newLen > uw_cleanup_max) {
adamc@1113 680 if (len+1 <= uw_cleanup_max)
adamc@1113 681 newLen = uw_cleanup_max;
adamc@1113 682 else
adamc@1113 683 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134 684 }
adamc@1113 685
adamc@470 686 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425 687 ctx->cleanup_front = ctx->cleanup + len;
adamc@425 688 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425 689 }
adamc@425 690
adamc@425 691 ctx->cleanup_front->func = func;
adamc@425 692 ctx->cleanup_front->arg = arg;
adamc@425 693 ++ctx->cleanup_front;
adamc@425 694 }
adamc@425 695
adam@1444 696 char *uw_Basis_htmlifyString(uw_context, const char *);
adam@1444 697
adamc@682 698 void uw_login(uw_context ctx) {
adamc@693 699 if (ctx->needs_push) {
adamc@682 700 char *id_s, *pass_s;
adamc@682 701
adamc@682 702 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682 703 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682 704 unsigned id = atoi(id_s);
adamc@682 705 int pass = atoi(pass_s);
adamc@682 706 client *c = find_client(id);
adamc@682 707
adamc@682 708 if (c == NULL)
adam@1444 709 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", uw_Basis_htmlifyString(ctx, id_s), uw_Basis_htmlifyString(ctx, pass_s));
adamc@682 710 else {
adamc@685 711 use_client(c);
adamc@682 712 ctx->client = c;
adamc@682 713
adamc@682 714 if (c->mode != USED)
adamc@682 715 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682 716 if (c->pass != pass)
adamc@682 717 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682 718 }
adamc@682 719 } else {
adamc@682 720 client *c = new_client();
adamc@1113 721
adamc@1113 722 if (c == NULL)
adamc@1113 723 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adamc@1113 724
adamc@685 725 use_client(c);
adamc@1121 726 uw_copy_client_data(c->data, ctx->client_data);
adamc@682 727 ctx->client = c;
adamc@864 728 }
adamc@682 729 }
adamc@682 730 }
adamc@682 731
adamc@671 732 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671 733 int r = setjmp(ctx->jmp_buf);
adamc@671 734
adamc@671 735 if (r == 0) {
adamc@1094 736 if (ctx->app->db_begin(ctx))
adamc@671 737 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adamc@682 738
adamc@1094 739 ctx->app->handle(ctx, path);
adamc@671 740 }
adamc@671 741
adamc@671 742 return r;
adamc@671 743 }
adamc@671 744
adamc@772 745 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682 746 if (ctx->client == NULL)
adamc@682 747 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682 748
adamc@682 749 return ctx->client->id;
adamc@682 750 }
adamc@682 751
adamc@425 752 void uw_pop_cleanup(uw_context ctx) {
adamc@425 753 if (ctx->cleanup_front == ctx->cleanup)
adamc@425 754 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425 755
adamc@425 756 --ctx->cleanup_front;
adamc@425 757 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425 758 }
adamc@425 759
adamc@311 760 char *uw_error_message(uw_context ctx) {
adamc@167 761 return ctx->error_message;
adamc@167 762 }
adamc@167 763
adamc@1115 764 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115 765 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115 766 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115 767 }
adamc@1115 768
adamc@759 769 static input *INP(uw_context ctx) {
adamc@759 770 if (ctx->cur_container == NULL)
adamc@759 771 return ctx->inputs;
adamc@759 772 else if (ctx->cur_container->kind == SUBFORM)
adamc@759 773 return ctx->cur_container->data.subform.fields;
adamc@759 774 else if (ctx->cur_container->kind == ENTRY)
adamc@759 775 return ctx->cur_container->data.entry.fields;
adamc@759 776 else
adamc@760 777 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759 778 }
adamc@759 779
adamc@760 780 static void adjust_pointer(input **ptr, input *old_start, input *new_start, size_t len) {
adamc@760 781 if (*ptr != NULL && *ptr >= old_start && *ptr < old_start + len)
adamc@760 782 *ptr += new_start - old_start;
adamc@760 783 }
adamc@760 784
adamc@760 785 static void adjust_input(input *x, input *old_start, input *new_start, size_t len) {
adamc@759 786 switch (x->kind) {
adamc@759 787 case SUBFORM:
adamc@760 788 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760 789 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759 790 break;
adamc@759 791 case SUBFORMS:
adamc@760 792 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760 793 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759 794 break;
adamc@759 795 case ENTRY:
adamc@760 796 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760 797 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760 798 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134 799 break;
adamc@1134 800 default:
adamc@1134 801 break;
adamc@759 802 }
adamc@759 803 }
adamc@759 804
adamc@1113 805 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113 806
adamc@759 807 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759 808 size_t i;
adamc@759 809 input *r;
adamc@759 810
adamc@759 811 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113 812 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113 813 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113 814
adamc@759 815 input *new_subinputs = realloc(ctx->subinputs, sizeof(input) * (ctx->used_subinputs + len));
adamc@759 816
adamc@760 817 if (ctx->subinputs != new_subinputs) {
adamc@760 818 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760 819 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094 820 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760 821 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760 822
adamc@760 823 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760 824
adamc@760 825 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760 826 ctx->subinputs = new_subinputs;
adamc@760 827 }
adamc@759 828 }
adamc@759 829
adamc@759 830 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759 831
adamc@759 832 for (i = 0; i < len; ++i)
adam@1474 833 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759 834
adamc@759 835 return r;
adamc@759 836 }
adamc@756 837
adamc@801 838 int uw_set_input(uw_context ctx, const char *name, char *value) {
adamc@1050 839 //printf("Input name %s\n", name);
adamc@1038 840
adamc@756 841 if (!strcasecmp(name, ".b")) {
adamc@1094 842 int n = ctx->app->input_num(value);
adamc@756 843 input *inps;
adamc@756 844
adamc@801 845 if (n < 0) {
adam@1444 846 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801 847 return -1;
adamc@801 848 }
adamc@801 849
adamc@1094 850 if (n >= ctx->app->inputs_len) {
adam@1444 851 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801 852 return -1;
adamc@801 853 }
adamc@756 854
adamc@1094 855 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759 856
adamc@759 857 INP(ctx)[n].kind = SUBFORM;
adamc@759 858 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759 859 INP(ctx)[n].data.subform.fields = inps;
adamc@759 860 ctx->cur_container = &INP(ctx)[n];
adamc@756 861 } else if (!strcasecmp(name, ".e")) {
adamc@756 862 input *tmp;
adamc@756 863
adamc@801 864 if (ctx->cur_container == NULL) {
adamc@801 865 uw_set_error(ctx, "Unmatched subform closer");
adamc@801 866 return -1;
adamc@801 867 }
adamc@756 868
adamc@759 869 tmp = ctx->cur_container;
adamc@759 870 switch (tmp->kind) {
adamc@759 871 case SUBFORM:
adamc@759 872 ctx->cur_container = tmp->data.subform.parent;
adamc@759 873 tmp->data.subform.parent = NULL;
adamc@759 874 break;
adamc@759 875 case SUBFORMS:
adamc@759 876 ctx->cur_container = tmp->data.subforms.parent;
adamc@759 877 tmp->data.subforms.parent = NULL;
adamc@759 878 break;
adamc@759 879 case ENTRY:
adamc@759 880 ctx->cur_container = tmp->data.entry.parent;
adamc@759 881 break;
adamc@759 882 default:
adamc@801 883 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801 884 return -1;
adamc@759 885 }
adamc@759 886 } else if (!strcasecmp(name, ".s")) {
adamc@1094 887 int n = ctx->app->input_num(value);
adamc@759 888
adamc@801 889 if (n < 0) {
adam@1444 890 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801 891 return -1;
adamc@801 892 }
adamc@801 893
adamc@1094 894 if (n >= ctx->app->inputs_len) {
adam@1444 895 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801 896 return -1;
adamc@801 897 }
adamc@759 898
adamc@759 899 INP(ctx)[n].kind = SUBFORMS;
adamc@759 900 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759 901 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759 902 ctx->cur_container = &INP(ctx)[n];
adamc@759 903 } else if (!strcasecmp(name, ".i")) {
adamc@759 904 input *inps;
adamc@759 905
adamc@801 906 if (!ctx->cur_container) {
adamc@801 907 uw_set_error(ctx, "New entry without container");
adamc@801 908 return -1;
adamc@801 909 }
adamc@801 910
adamc@801 911 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801 912 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801 913 return -1;
adamc@801 914 }
adamc@759 915
adamc@1094 916 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759 917
adamc@759 918 inps->kind = ENTRY;
adamc@759 919 inps->data.entry.parent = ctx->cur_container;
adamc@759 920 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759 921 ctx->cur_container->data.subforms.entries = inps;
adamc@759 922
adamc@759 923 inps->data.entry.fields = inps+1;
adamc@759 924 ctx->cur_container = inps;
adamc@756 925 } else {
adamc@1094 926 int n = ctx->app->input_num(name);
adamc@756 927
adam@1384 928 if (n < 0)
adam@1384 929 return 0;
adamc@801 930
adamc@1094 931 if (n >= ctx->app->inputs_len) {
adam@1444 932 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801 933 return -1;
adamc@801 934 }
adamc@756 935
adamc@756 936 INP(ctx)[n].kind = NORMAL;
adamc@756 937 INP(ctx)[n].data.normal = value;
adamc@756 938 }
adamc@801 939
adamc@801 940 return 0;
adamc@144 941 }
adamc@144 942
adamc@311 943 char *uw_get_input(uw_context ctx, int n) {
adamc@169 944 if (n < 0)
adamc@311 945 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094 946 if (n >= ctx->app->inputs_len)
adamc@311 947 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737 948
adamc@756 949 switch (INP(ctx)[n].kind) {
adamc@737 950 case UNSET:
adamc@737 951 return NULL;
adamc@739 952 case FIL:
adamc@739 953 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756 954 case SUBFORM:
adamc@756 955 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759 956 case SUBFORMS:
adamc@759 957 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759 958 case ENTRY:
adamc@759 959 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737 960 case NORMAL:
adamc@756 961 return INP(ctx)[n].data.normal;
adamc@737 962 default:
adamc@737 963 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 964 }
adamc@138 965 }
adamc@138 966
adamc@311 967 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190 968 if (n < 0)
adamc@311 969 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094 970 if (n >= ctx->app->inputs_len)
adamc@311 971 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737 972
adamc@756 973 switch (INP(ctx)[n].kind) {
adamc@737 974 case UNSET:
adamc@737 975 return "";
adamc@739 976 case FIL:
adamc@739 977 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756 978 case SUBFORM:
adamc@756 979 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759 980 case SUBFORMS:
adamc@759 981 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759 982 case ENTRY:
adamc@759 983 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737 984 case NORMAL:
adamc@756 985 return INP(ctx)[n].data.normal;
adamc@737 986 default:
adamc@737 987 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 988 }
adamc@737 989 }
adamc@737 990
adamc@801 991 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094 992 int n = ctx->app->input_num(name);
adamc@737 993
adamc@801 994 if (n < 0) {
adam@1444 995 uw_set_error(ctx, "Bad file input name %s", uw_Basis_htmlifyString(ctx, name));
adamc@801 996 return -1;
adamc@801 997 }
adamc@801 998
adamc@1094 999 if (n >= ctx->app->inputs_len) {
adam@1444 1000 uw_set_error(ctx, "For file input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801 1001 return -1;
adamc@801 1002 }
adamc@737 1003
adamc@739 1004 ctx->inputs[n].kind = FIL;
adamc@739 1005 ctx->inputs[n].data.file = f;
adamc@801 1006
adamc@801 1007 return 0;
adamc@737 1008 }
adamc@737 1009
adamc@739 1010 void *uw_malloc(uw_context ctx, size_t len);
adamc@739 1011
adamc@739 1012 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737 1013 if (n < 0)
adamc@737 1014 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094 1015 if (n >= ctx->app->inputs_len)
adamc@737 1016 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737 1017
adamc@756 1018 switch (INP(ctx)[n].kind) {
adamc@737 1019 case UNSET:
adamc@737 1020 {
adamc@739 1021 char *data = uw_malloc(ctx, 0);
adamc@740 1022 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739 1023 return f;
adamc@737 1024 }
adamc@739 1025 case FIL:
adamc@756 1026 return INP(ctx)[n].data.file;
adamc@737 1027 case NORMAL:
adamc@737 1028 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756 1029 case SUBFORM:
adamc@756 1030 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759 1031 case SUBFORMS:
adamc@759 1032 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759 1033 case ENTRY:
adamc@759 1034 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737 1035 default:
adamc@737 1036 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 1037 }
adamc@190 1038 }
adamc@190 1039
adamc@756 1040 void uw_enter_subform(uw_context ctx, int n) {
adamc@756 1041 if (n < 0)
adamc@756 1042 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094 1043 if (n >= ctx->app->inputs_len)
adamc@756 1044 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756 1045
adamc@756 1046 switch (INP(ctx)[n].kind) {
adamc@756 1047 case UNSET:
adamc@756 1048 uw_error(ctx, FATAL, "Missing subform");
adamc@756 1049 case FIL:
adamc@756 1050 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756 1051 case NORMAL:
adamc@756 1052 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759 1053 case SUBFORMS:
adamc@759 1054 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759 1055 case ENTRY:
adamc@759 1056 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756 1057 case SUBFORM:
adamc@759 1058 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760 1059 ctx->cur_container = &INP(ctx)[n];
adamc@756 1060 return;
adamc@756 1061 default:
adamc@756 1062 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756 1063 }
adamc@756 1064 }
adamc@756 1065
adamc@756 1066 void uw_leave_subform(uw_context ctx) {
adamc@756 1067 input *tmp;
adamc@756 1068
adamc@759 1069 if (ctx->cur_container == NULL)
adamc@756 1070 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756 1071
adamc@759 1072 tmp = ctx->cur_container;
adamc@759 1073 ctx->cur_container = tmp->data.subform.parent;
adamc@759 1074 tmp->data.subform.parent = NULL;
adamc@759 1075 }
adamc@759 1076
adamc@759 1077 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759 1078 input *inps;
adamc@759 1079
adamc@759 1080 if (n < 0)
adamc@759 1081 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094 1082 if (n >= ctx->app->inputs_len)
adamc@759 1083 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759 1084
adamc@759 1085 switch (INP(ctx)[n].kind) {
adamc@759 1086 case UNSET:
adamc@759 1087 uw_error(ctx, FATAL, "Missing subforms");
adamc@759 1088 case FIL:
adamc@759 1089 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759 1090 case NORMAL:
adamc@759 1091 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759 1092 case SUBFORM:
adamc@759 1093 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759 1094 case ENTRY:
adamc@759 1095 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759 1096 case SUBFORMS:
adamc@759 1097 inps = INP(ctx)[n].data.subforms.entries;
adamc@759 1098 if (inps) {
adamc@759 1099 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759 1100 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759 1101 return 1;
adamc@759 1102 } else
adamc@759 1103 return 0;
adamc@759 1104 default:
adamc@759 1105 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759 1106 }
adamc@759 1107 }
adamc@759 1108
adamc@759 1109 int uw_next_entry(uw_context ctx) {
adamc@759 1110 if (ctx->cur_container == NULL)
adamc@759 1111 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759 1112
adamc@759 1113 switch (ctx->cur_container->kind) {
adamc@759 1114 case UNSET:
adamc@759 1115 uw_error(ctx, FATAL, "Missing entry");
adamc@759 1116 case FIL:
adamc@759 1117 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759 1118 case NORMAL:
adamc@759 1119 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759 1120 case SUBFORM:
adamc@759 1121 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759 1122 case SUBFORMS:
adamc@759 1123 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759 1124 case ENTRY:
adamc@759 1125 if (ctx->cur_container->data.entry.next) {
adamc@759 1126 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759 1127 return 1;
adamc@759 1128 } else {
adamc@759 1129 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759 1130 return 0;
adamc@759 1131 }
adamc@759 1132 default:
adamc@759 1133 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759 1134 }
adamc@756 1135 }
adamc@756 1136
adamc@643 1137 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643 1138 ctx->script_header = s;
adamc@643 1139 }
adamc@643 1140
adamc@1094 1141 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094 1142 return ctx->app->url_prefix;
adamc@667 1143 }
adamc@667 1144
adamc@693 1145 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693 1146 ctx->needs_push = n;
adamc@693 1147 }
adamc@693 1148
adamc@736 1149 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736 1150 ctx->needs_sig = n;
adamc@736 1151 }
adamc@736 1152
adamc@667 1153
adam@1369 1154 static void uw_buffer_check_ctx(uw_context ctx, const char *kind, uw_buffer *b, size_t extra, const char *desc) {
adamc@666 1155 if (b->back - b->front < extra) {
adamc@666 1156 size_t desired = b->front - b->start + extra, next;
adamc@136 1157 char *new_heap;
adamc@136 1158
adamc@666 1159 next = b->back - b->start;
adamc@317 1160 if (next == 0)
adamc@317 1161 next = 1;
adamc@317 1162 for (; next < desired; next *= 2);
adamc@136 1163
adamc@1134 1164 if (next > b->max) {
adamc@1113 1165 if (desired <= b->max)
adamc@1113 1166 next = desired;
adamc@1113 1167 else
adamc@1113 1168 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134 1169 }
adamc@1113 1170
adamc@666 1171 new_heap = realloc(b->start, next);
adamc@666 1172 b->front = new_heap + (b->front - b->start);
adamc@666 1173 b->back = new_heap + next;
adamc@136 1174
adamc@667 1175 if (new_heap != b->start) {
adamc@666 1176 b->start = new_heap;
adam@1389 1177 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136 1178 }
adamc@136 1179
adamc@666 1180 b->start = new_heap;
adamc@136 1181 }
adamc@136 1182 }
adamc@136 1183
adamc@832 1184 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369 1185 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666 1186 }
adamc@666 1187
adamc@832 1188 char *uw_heap_front(uw_context ctx) {
adamc@832 1189 return ctx->heap.front;
adamc@832 1190 }
adamc@832 1191
adamc@832 1192 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832 1193 ctx->heap.front = fr;
adamc@832 1194 }
adamc@832 1195
adamc@311 1196 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136 1197 void *result;
adamc@136 1198
adamc@311 1199 uw_check_heap(ctx, len);
adamc@136 1200
adamc@666 1201 result = ctx->heap.front;
adamc@666 1202 ctx->heap.front += len;
adamc@136 1203 return result;
adamc@117 1204 }
adamc@117 1205
adamc@323 1206 void uw_begin_region(uw_context ctx) {
adamc@666 1207 regions *r = (regions *) ctx->heap.front;
adamc@323 1208
adamc@323 1209 uw_check_heap(ctx, sizeof(regions));
adamc@323 1210
adamc@666 1211 ctx->heap.front += sizeof(regions);
adamc@323 1212
adamc@323 1213 r->next = ctx->regions;
adamc@323 1214 ctx->regions = r;
adamc@323 1215 }
adamc@323 1216
adamc@323 1217 void uw_end_region(uw_context ctx) {
adamc@323 1218 regions *r = ctx->regions;
adamc@323 1219
adamc@323 1220 if (r == NULL)
adamc@323 1221 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323 1222
adamc@666 1223 ctx->heap.front = (char *) r;
adamc@323 1224 ctx->regions = r->next;
adamc@323 1225 }
adamc@323 1226
adamc@324 1227 void uw_memstats(uw_context ctx) {
adam@1369 1228 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369 1229 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369 1230 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369 1231 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324 1232 }
adamc@324 1233
adamc@311 1234 int uw_send(uw_context ctx, int sock) {
adamc@666 1235 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462 1236
adamc@462 1237 if (n < 0)
adamc@462 1238 return n;
adamc@462 1239
adamc@462 1240 n = uw_really_send(sock, "\r\n", 2);
adamc@462 1241
adamc@462 1242 if (n < 0)
adamc@462 1243 return n;
adamc@462 1244
adamc@666 1245 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462 1246 }
adamc@462 1247
adamc@856 1248 int uw_print(uw_context ctx, int fd) {
adamc@856 1249 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856 1250
adamc@856 1251 if (n < 0)
adamc@856 1252 return n;
adamc@856 1253
adamc@856 1254 n = uw_really_write(fd, "\r\n", 2);
adamc@856 1255
adamc@856 1256 if (n < 0)
adamc@856 1257 return n;
adamc@856 1258
adamc@856 1259 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856 1260 }
adamc@856 1261
adamc@860 1262 int uw_output(uw_context ctx, int (*output)(void *data, char *buf, size_t len), void *data) {
adamc@860 1263 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860 1264
adamc@860 1265 if (n < 0)
adamc@860 1266 return n;
adamc@860 1267
adamc@860 1268 n = output(data, "\r\n", 2);
adamc@860 1269
adamc@860 1270 if (n < 0)
adamc@860 1271 return n;
adamc@860 1272
adamc@860 1273 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860 1274 }
adamc@860 1275
adamc@462 1276 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369 1277 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462 1278 }
adamc@462 1279
adamc@462 1280 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462 1281 int len = strlen(s);
adamc@462 1282
adamc@462 1283 uw_check_headers(ctx, len + 1);
adamc@666 1284 strcpy(ctx->outHeaders.front, s);
adamc@666 1285 ctx->outHeaders.front += len;
adamc@562 1286 }
adamc@562 1287
adamc@1110 1288 void uw_clear_headers(uw_context ctx) {
adam@1369 1289 uw_buffer_reset(&ctx->outHeaders);
adamc@1110 1290 }
adamc@1110 1291
adamc@562 1292 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369 1293 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562 1294 }
adamc@562 1295
adamc@562 1296 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562 1297 int len = strlen(s);
adamc@562 1298
adamc@562 1299 uw_check_script(ctx, len + 1);
adamc@666 1300 strcpy(ctx->script.front, s);
adamc@666 1301 ctx->script.front += len;
adamc@562 1302 }
adamc@562 1303
adamc@645 1304 const char *uw_Basis_get_script(uw_context ctx, uw_unit u) {
adamc@916 1305 return "<sc>";
adamc@565 1306 }
adamc@565 1307
adam@1446 1308 const char *uw_get_real_script(uw_context ctx) {
adam@1446 1309 return ctx->script.start;
adam@1446 1310 }
adam@1446 1311
adamc@695 1312 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695 1313 if (s[0] == 0)
adamc@695 1314 return "";
adamc@695 1315 else {
adamc@695 1316 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695 1317 sprintf(r, " onload='%s'", s);
adamc@695 1318 return r;
adamc@695 1319 }
adamc@695 1320 }
adamc@695 1321
adamc@1042 1322 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042 1323 if (ctx->script_header[0] == 0)
adamc@1042 1324 return "";
adamc@1042 1325 else {
adamc@1042 1326 char *r = uw_malloc(ctx, 22 + strlen(s));
adamc@1042 1327 sprintf(r, " onunload='unload();%s'", s);
adamc@1042 1328 return r;
adamc@1042 1329 }
adamc@1042 1330 }
adamc@1042 1331
adamc@694 1332 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736 1333 if (ctx->client == NULL) {
adamc@736 1334 if (ctx->needs_sig) {
adamc@1094 1335 char *sig = ctx->app->cookie_sig(ctx);
adamc@736 1336 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736 1337 sprintf(r, "sig=\"%s\";", sig);
adamc@736 1338 return r;
adamc@736 1339 }
adamc@736 1340 else
adamc@736 1341 return "";
adamc@736 1342 } else {
adamc@1094 1343 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094 1344 char *r = uw_malloc(ctx, 59 + 3 * INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736 1345 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adamc@736 1346 sprintf(r, "client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adamc@682 1347 ctx->client->id,
adamc@682 1348 ctx->client->pass,
adamc@1094 1349 ctx->app->url_prefix,
adamc@1094 1350 ctx->app->timeout,
adamc@736 1351 ctx->needs_sig ? "sig=\"" : "",
adamc@736 1352 sig,
adamc@736 1353 ctx->needs_sig ? "\";" : "");
adamc@679 1354 return r;
adamc@668 1355 }
adamc@667 1356 }
adamc@667 1357
adamc@574 1358 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574 1359 char *r, *s2;
adamc@574 1360
adam@1446 1361 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574 1362
adamc@666 1363 r = s2 = ctx->heap.front;
adamc@574 1364 *s2++ = '"';
adamc@574 1365
adamc@574 1366 for (; *s; s++) {
adam@1286 1367 unsigned char c = *s;
adamc@574 1368
adamc@574 1369 switch (c) {
adamc@574 1370 case '"':
adamc@574 1371 strcpy(s2, "\\\"");
adamc@574 1372 s2 += 2;
adamc@574 1373 break;
adamc@1027 1374 case '\'':
adamc@1027 1375 strcpy(s2, "\\047");
adamc@1027 1376 s2 += 4;
adamc@1027 1377 break;
adamc@574 1378 case '\\':
adamc@574 1379 strcpy(s2, "\\\\");
adamc@574 1380 s2 += 2;
adamc@574 1381 break;
adam@1457 1382 case '<':
adam@1457 1383 strcpy(s2, "\\074");
adam@1457 1384 s2 += 4;
adam@1457 1385 break;
adamc@574 1386 default:
adam@1286 1387 if (isprint((int)c) || c >= 128)
adamc@574 1388 *s2++ = c;
adamc@574 1389 else {
adam@1429 1390 sprintf(s2, "\\%03o", c);
adamc@574 1391 s2 += 4;
adamc@574 1392 }
adamc@574 1393 }
adamc@574 1394 }
adamc@574 1395
adamc@574 1396 strcpy(s2, "\"");
adamc@910 1397 ctx->heap.front = s2 + 2;
adamc@574 1398 return r;
adamc@574 1399 }
adamc@574 1400
adam@1286 1401 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286 1402 unsigned char c = c1;
adamc@1025 1403 char *r, *s2;
adamc@1025 1404
adam@1446 1405 uw_check_heap(ctx, 7);
adamc@1025 1406
adamc@1025 1407 r = s2 = ctx->heap.front;
adamc@1025 1408 *s2++ = '"';
adamc@1025 1409
adamc@1025 1410 switch (c) {
adamc@1025 1411 case '"':
adamc@1025 1412 strcpy(s2, "\\\"");
adamc@1025 1413 s2 += 2;
adamc@1025 1414 break;
adamc@1027 1415 case '\'':
adamc@1027 1416 strcpy(s2, "\\047");
adamc@1027 1417 s2 += 4;
adamc@1027 1418 break;
adamc@1025 1419 case '\\':
adamc@1025 1420 strcpy(s2, "\\\\");
adamc@1025 1421 s2 += 2;
adamc@1025 1422 break;
adam@1457 1423 case '<':
adam@1457 1424 strcpy(s2, "\\074");
adam@1457 1425 s2 += 4;
adam@1457 1426 break;
adamc@1025 1427 default:
adam@1286 1428 if (isprint((int)c) || c >= 128)
adamc@1025 1429 *s2++ = c;
adamc@1025 1430 else {
adam@1429 1431 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025 1432 s2 += 4;
adamc@1025 1433 }
adamc@1025 1434 }
adamc@1025 1435
adamc@1025 1436 strcpy(s2, "\"");
adamc@1025 1437 ctx->heap.front = s2 + 2;
adamc@1025 1438 return r;
adamc@1025 1439 }
adamc@1025 1440
adamc@574 1441 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574 1442 char *r, *s2;
adamc@574 1443
adam@1446 1444 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574 1445
adamc@666 1446 r = s2 = ctx->script.front;
adamc@574 1447 *s2++ = '"';
adamc@574 1448
adamc@574 1449 for (; *s; s++) {
adam@1286 1450 unsigned char c = *s;
adamc@574 1451
adamc@574 1452 switch (c) {
adamc@577 1453 case '\'':
adamc@1027 1454 strcpy(s2, "\\");
adamc@574 1455 s2 += 2;
adamc@574 1456 break;
adamc@574 1457 case '\\':
adamc@574 1458 strcpy(s2, "\\\\");
adamc@574 1459 s2 += 2;
adamc@574 1460 break;
adam@1457 1461 case '<':
adam@1457 1462 strcpy(s2, "\\074");
adam@1457 1463 s2 += 4;
adam@1457 1464 break;
adamc@574 1465 default:
adam@1286 1466 if (isprint((int)c) || c >= 128)
adamc@574 1467 *s2++ = c;
adamc@574 1468 else {
adam@1429 1469 sprintf(s2, "\\%03o", c);
adamc@574 1470 s2 += 4;
adamc@574 1471 }
adamc@574 1472 }
adamc@574 1473 }
adamc@574 1474
adamc@574 1475 strcpy(s2, "\"");
adamc@666 1476 ctx->script.front = s2 + 1;
adamc@574 1477 return r;
adamc@574 1478 }
adamc@574 1479
adamc@682 1480 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1481 if (ctx->client == NULL || chn.cli != ctx->client->id)
adamc@682 1482 return "null";
adamc@682 1483 else {
adamc@682 1484 int len;
adamc@682 1485 char *r;
adamc@682 1486
adamc@682 1487 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1488 r = ctx->heap.front;
adamc@682 1489 sprintf(r, "%u%n", chn.chn, &len);
adamc@682 1490 ctx->heap.front += len+1;
adamc@682 1491 return r;
adamc@682 1492 }
adamc@682 1493 }
adamc@682 1494
adam@1446 1495 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577 1496 int len;
adamc@577 1497 size_t s_len = strlen(s);
adamc@562 1498
adam@1446 1499 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446 1500 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666 1501 ctx->script.front += len;
adamc@666 1502 strcpy(ctx->script.front, s);
adamc@666 1503 ctx->script.front += s_len;
adamc@970 1504 strcpy(ctx->script.front, "));");
adamc@972 1505 ctx->script.front += 3;
adamc@562 1506
adam@1446 1507 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446 1508 return r;
adam@1446 1509 }
adam@1446 1510
adam@1446 1511 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577 1512 int len;
adamc@577 1513 size_t s_len = strlen(s);
adamc@577 1514
adam@1446 1515 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446 1516 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666 1517 ctx->script.front += len;
adamc@666 1518 strcpy(ctx->script.front, s);
adamc@666 1519 ctx->script.front += s_len;
adamc@970 1520 strcpy(ctx->script.front, "));");
adamc@972 1521 ctx->script.front += 3;
adamc@577 1522
adamc@577 1523 return uw_unit_v;
adamc@577 1524 }
adamc@577 1525
adamc@311 1526 static void uw_check(uw_context ctx, size_t extra) {
adam@1369 1527 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117 1528 }
adamc@117 1529
adamc@311 1530 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666 1531 *(ctx->page.front)++ = c;
adam@1413 1532 *ctx->page.front = 0;
adamc@117 1533 }
adamc@117 1534
adamc@311 1535 void uw_writec(uw_context ctx, char c) {
adam@1413 1536 uw_check(ctx, 2);
adamc@311 1537 uw_writec_unsafe(ctx, c);
adamc@117 1538 }
adamc@117 1539
adamc@311 1540 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117 1541 int len = strlen(s);
adamc@666 1542 memcpy(ctx->page.front, s, len);
adamc@666 1543 ctx->page.front += len;
adamc@117 1544 }
adamc@117 1545
adamc@311 1546 void uw_write(uw_context ctx, const char* s) {
adamc@311 1547 uw_check(ctx, strlen(s) + 1);
adamc@311 1548 uw_write_unsafe(ctx, s);
adamc@666 1549 *ctx->page.front = 0;
adamc@102 1550 }
adamc@106 1551
adamc@311 1552 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136 1553 char *result;
adamc@136 1554 int len;
adamc@311 1555 uw_check_heap(ctx, INTS_MAX);
adamc@666 1556 result = ctx->heap.front;
adamc@276 1557 sprintf(result, "%lld%n", n, &len);
adamc@666 1558 ctx->heap.front += len+1;
adamc@136 1559 return result;
adamc@106 1560 }
adamc@106 1561
adamc@311 1562 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136 1563 char *result;
adamc@136 1564 int len;
adamc@311 1565 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1566 result = ctx->heap.front;
adamc@136 1567 sprintf(result, "%g%n", n, &len);
adamc@666 1568 ctx->heap.front += len+1;
adamc@136 1569 return result;
adamc@106 1570 }
adamc@106 1571
adamc@311 1572 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136 1573 int len = strlen(s);
adamc@136 1574 char *result, *p;
adamc@311 1575 uw_check_heap(ctx, len * 6 + 1);
adamc@136 1576
adamc@666 1577 result = p = ctx->heap.front;
adamc@136 1578
adamc@136 1579 for (; *s; s++) {
adamc@1054 1580 unsigned char c = *s;
adamc@136 1581
adamc@136 1582 if (c == '"') {
adamc@136 1583 strcpy(p, "&quot;");
adamc@136 1584 p += 6;
adamc@136 1585 } else if (c == '&') {
adamc@136 1586 strcpy(p, "&amp;");
adamc@136 1587 p += 5;
adamc@136 1588 }
adamc@1059 1589 else
adamc@136 1590 *p++ = c;
adamc@136 1591 }
adamc@136 1592
adamc@137 1593 *p++ = 0;
adamc@666 1594 ctx->heap.front = p;
adamc@136 1595 return result;
adamc@106 1596 }
adamc@106 1597
adamc@1011 1598 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011 1599 char *result, *p;
adamc@1011 1600 uw_check_heap(ctx, 7);
adamc@1011 1601
adamc@1011 1602 result = p = ctx->heap.front;
adamc@1011 1603
adamc@1011 1604 if (c == '"') {
adamc@1011 1605 strcpy(p, "&quot;");
adamc@1011 1606 p += 6;
adamc@1011 1607 } else if (c == '&') {
adamc@1011 1608 strcpy(p, "&amp;");
adamc@1011 1609 p += 5;
adamc@1011 1610 }
adamc@1059 1611 else
adamc@1011 1612 *p++ = c;
adamc@1011 1613
adamc@1011 1614 *p++ = 0;
adamc@1011 1615 ctx->heap.front = p;
adamc@1011 1616 return result;
adamc@1011 1617 }
adamc@1011 1618
adamc@721 1619 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721 1620 return s;
adamc@721 1621 }
adamc@721 1622
adamc@311 1623 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117 1624 int len;
adamc@117 1625
adamc@666 1626 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1627 ctx->page.front += len;
adamc@106 1628 }
adamc@106 1629
adamc@428 1630 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311 1631 uw_check(ctx, INTS_MAX);
adamc@311 1632 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428 1633
adamc@428 1634 return uw_unit_v;
adamc@106 1635 }
adamc@106 1636
adamc@428 1637 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117 1638 int len;
adamc@117 1639
adamc@311 1640 uw_check(ctx, FLOATS_MAX);
adamc@666 1641 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1642 ctx->page.front += len;
adamc@428 1643
adamc@428 1644 return uw_unit_v;
adamc@117 1645 }
adamc@117 1646
adamc@428 1647 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311 1648 uw_check(ctx, strlen(s) * 6);
adamc@117 1649
adamc@106 1650 for (; *s; s++) {
adamc@1054 1651 unsigned char c = *s;
adamc@106 1652
adamc@106 1653 if (c == '"')
adamc@311 1654 uw_write_unsafe(ctx, "&quot;");
adamc@136 1655 else if (c == '&')
adamc@311 1656 uw_write_unsafe(ctx, "&amp;");
adamc@1059 1657 else
adamc@311 1658 uw_writec_unsafe(ctx, c);
adamc@106 1659 }
adamc@428 1660
adamc@428 1661 return uw_unit_v;
adamc@106 1662 }
adamc@120 1663
adamc@1011 1664 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011 1665 uw_check(ctx, 6);
adamc@1011 1666
adamc@1011 1667 if (c == '"')
adamc@1011 1668 uw_write_unsafe(ctx, "&quot;");
adamc@1011 1669 else if (c == '&')
adamc@1011 1670 uw_write_unsafe(ctx, "&amp;");
adamc@1059 1671 else
adamc@1011 1672 uw_writec_unsafe(ctx, c);
adamc@1011 1673
adamc@1011 1674 return uw_unit_v;
adamc@1011 1675 }
adamc@1011 1676
adamc@120 1677
adamc@311 1678 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137 1679 int len;
adamc@137 1680 char *r;
adamc@137 1681
adamc@311 1682 uw_check_heap(ctx, INTS_MAX);
adamc@666 1683 r = ctx->heap.front;
adamc@276 1684 sprintf(r, "%lld%n", n, &len);
adamc@666 1685 ctx->heap.front += len+1;
adamc@137 1686 return r;
adamc@120 1687 }
adamc@120 1688
adamc@682 1689 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1690 if (ctx->client == NULL || chn.cli != ctx->client->id)
adamc@682 1691 return "";
adamc@682 1692 else {
adamc@682 1693 int len;
adamc@682 1694 char *r;
adamc@679 1695
adamc@682 1696 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1697 r = ctx->heap.front;
adamc@682 1698 sprintf(r, "%u%n", chn.chn, &len);
adamc@682 1699 ctx->heap.front += len+1;
adamc@682 1700 return r;
adamc@682 1701 }
adamc@679 1702 }
adamc@679 1703
adamc@311 1704 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137 1705 int len;
adamc@137 1706 char *r;
adamc@137 1707
adamc@311 1708 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1709 r = ctx->heap.front;
adamc@137 1710 sprintf(r, "%g%n", n, &len);
adamc@666 1711 ctx->heap.front += len+1;
adamc@137 1712 return r;
adamc@120 1713 }
adamc@120 1714
adamc@311 1715 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137 1716 char *r, *p;
adamc@137 1717
adamc@925 1718 if (s[0] == '\0')
adamc@925 1719 return "_";
adamc@925 1720
adamc@925 1721 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925 1722
adamc@925 1723 r = p = ctx->heap.front;
adamc@925 1724 if (s[0] == '_')
adamc@925 1725 *p++ = '_';
adamc@925 1726
adamc@925 1727 for (; *s; s++) {
adamc@1087 1728 unsigned char c = *s;
adamc@137 1729
adamc@137 1730 if (c == ' ')
adamc@137 1731 *p++ = '+';
adamc@137 1732 else if (isalnum(c))
adamc@137 1733 *p++ = c;
adamc@137 1734 else {
adamc@1259 1735 sprintf(p, ".%02X", c);
adamc@137 1736 p += 3;
adamc@137 1737 }
adamc@137 1738 }
adamc@137 1739
adamc@137 1740 *p++ = 0;
adamc@666 1741 ctx->heap.front = p;
adamc@137 1742 return r;
adamc@120 1743 }
adamc@120 1744
adamc@311 1745 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 1746 if (b == uw_Basis_False)
adamc@186 1747 return "0";
adamc@186 1748 else
adamc@186 1749 return "1";
adamc@186 1750 }
adamc@186 1751
adamc@311 1752 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120 1753 int len;
adamc@120 1754
adamc@666 1755 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1756 ctx->page.front += len;
adamc@120 1757 }
adamc@120 1758
adamc@428 1759 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311 1760 uw_check(ctx, INTS_MAX);
adamc@311 1761 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428 1762
adamc@428 1763 return uw_unit_v;
adamc@120 1764 }
adamc@120 1765
adamc@682 1766 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1767 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682 1768 int len;
adamc@682 1769
adamc@682 1770 uw_check(ctx, INTS_MAX + 1);
adamc@682 1771 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682 1772 ctx->page.front += len;
adamc@682 1773 }
adamc@682 1774
adamc@679 1775 return uw_unit_v;
adamc@679 1776 }
adamc@679 1777
adamc@428 1778 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120 1779 int len;
adamc@120 1780
adamc@311 1781 uw_check(ctx, FLOATS_MAX);
adamc@666 1782 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1783 ctx->page.front += len;
adamc@428 1784
adamc@428 1785 return uw_unit_v;
adamc@120 1786 }
adamc@120 1787
adamc@488 1788 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376 1789 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488 1790 }
adamc@488 1791
adam@1404 1792 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404 1793 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404 1794 }
adam@1404 1795
adamc@428 1796 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925 1797 if (s[0] == '\0') {
adamc@925 1798 uw_check(ctx, 1);
adamc@925 1799 uw_writec_unsafe(ctx, '_');
adamc@925 1800 return uw_unit_v;
adamc@925 1801 }
adamc@925 1802
adamc@925 1803 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925 1804
adamc@925 1805 if (s[0] == '_')
adamc@925 1806 uw_writec_unsafe(ctx, '_');
adamc@120 1807
adamc@120 1808 for (; *s; s++) {
adamc@1087 1809 unsigned char c = *s;
adamc@120 1810
adamc@120 1811 if (c == ' ')
adamc@311 1812 uw_writec_unsafe(ctx, '+');
adamc@120 1813 else if (isalnum(c))
adamc@311 1814 uw_writec_unsafe(ctx, c);
adamc@120 1815 else {
adamc@1259 1816 sprintf(ctx->page.front, ".%02X", c);
adamc@666 1817 ctx->page.front += 3;
adamc@120 1818 }
adamc@120 1819 }
adamc@428 1820
adamc@428 1821 return uw_unit_v;
adamc@120 1822 }
adamc@120 1823
adamc@428 1824 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311 1825 if (b == uw_Basis_False)
adamc@311 1826 uw_writec(ctx, '0');
adamc@186 1827 else
adamc@311 1828 uw_writec(ctx, '1');
adamc@428 1829
adamc@428 1830 return uw_unit_v;
adamc@186 1831 }
adamc@186 1832
adamc@120 1833
adamc@311 1834 static char *uw_unurlify_advance(char *s) {
adamc@144 1835 char *new_s = strchr(s, '/');
adamc@120 1836
adamc@120 1837 if (new_s)
adamc@120 1838 *new_s++ = 0;
adamc@120 1839 else
adamc@144 1840 new_s = strchr(s, 0);
adamc@144 1841
adamc@144 1842 return new_s;
adamc@144 1843 }
adamc@144 1844
adamc@311 1845 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311 1846 char *new_s = uw_unurlify_advance(*s);
adamc@311 1847 uw_Basis_int r;
adamc@120 1848
adamc@276 1849 r = atoll(*s);
adamc@120 1850 *s = new_s;
adamc@120 1851 return r;
adamc@120 1852 }
adamc@120 1853
adamc@311 1854 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311 1855 char *new_s = uw_unurlify_advance(*s);
adamc@311 1856 uw_Basis_float r;
adamc@120 1857
adamc@120 1858 r = atof(*s);
adamc@120 1859 *s = new_s;
adamc@120 1860 return r;
adamc@120 1861 }
adamc@120 1862
adamc@488 1863 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365 1864 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365 1865 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365 1866 return r;
adamc@488 1867 }
adamc@488 1868
adamc@1023 1869 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char *r, char *s) {
adamc@927 1870 char *s1, *s2 = s;
adamc@144 1871 int n;
adamc@136 1872
adamc@1023 1873 if (!fromClient) {
adamc@1023 1874 if (*s2 == '_')
adamc@1023 1875 ++s2;
adamc@1259 1876 else if ((s2[0] == '%' || s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' || s2[2] == 'F'))
adamc@1023 1877 s2 += 3;
adamc@1023 1878 }
adamc@925 1879
adamc@927 1880 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087 1881 unsigned char c = *s2;
adamc@136 1882
adamc@136 1883 switch (c) {
adamc@136 1884 case '+':
adamc@136 1885 *s1 = ' ';
adamc@136 1886 break;
adamc@136 1887 case '%':
adamc@169 1888 if (s2[1] == 0)
adamc@311 1889 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169 1890 if (s2[2] == 0)
adamc@311 1891 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169 1892 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444 1893 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136 1894 *s1 = n;
adamc@136 1895 s2 += 2;
adamc@136 1896 break;
adamc@1259 1897 case '.':
adamc@1259 1898 if (!fromClient) {
adamc@1259 1899 if (s2[1] == 0)
adamc@1259 1900 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259 1901 if (s2[2] == 0)
adamc@1259 1902 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259 1903 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444 1904 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259 1905 *s1 = n;
adamc@1259 1906 s2 += 2;
adamc@1259 1907 break;
adamc@1259 1908 }
adamc@136 1909 default:
adamc@136 1910 *s1 = c;
adamc@136 1911 }
adamc@136 1912 }
adamc@136 1913 *s1++ = 0;
adamc@144 1914 return s1;
adamc@144 1915 }
adamc@144 1916
adamc@311 1917 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311 1918 char *new_s = uw_unurlify_advance(*s);
adamc@311 1919 uw_Basis_bool r;
adamc@186 1920
adamc@186 1921 if (*s[0] == 0 || !strcmp(*s, "0") || !strcmp(*s, "off"))
adamc@311 1922 r = uw_Basis_False;
adamc@186 1923 else
adamc@311 1924 r = uw_Basis_True;
adamc@186 1925
adamc@186 1926 *s = new_s;
adamc@186 1927 return r;
adamc@186 1928 }
adamc@186 1929
adamc@311 1930 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311 1931 char *new_s = uw_unurlify_advance(*s);
adamc@1134 1932 char *r;
adamc@1134 1933 int len;
adamc@144 1934
adamc@200 1935 len = strlen(*s);
adamc@311 1936 uw_check_heap(ctx, len + 1);
adamc@144 1937
adamc@666 1938 r = ctx->heap.front;
adamc@1023 1939 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023 1940 *s = new_s;
adamc@1023 1941 return r;
adamc@1023 1942 }
adamc@1023 1943
adamc@1109 1944 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109 1945 *s = uw_unurlify_advance(*s);
adamc@1109 1946 return uw_unit_v;
adamc@1109 1947 }
adamc@1109 1948
adamc@1023 1949 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023 1950 char *new_s = uw_unurlify_advance(*s);
adamc@1134 1951 char *r;
adamc@1134 1952 int len;
adamc@1023 1953
adamc@1023 1954 len = strlen(*s);
adamc@1023 1955 uw_check_heap(ctx, len + 1);
adamc@1023 1956
adamc@1023 1957 r = ctx->heap.front;
adamc@1023 1958 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136 1959 *s = new_s;
adamc@136 1960 return r;
adamc@120 1961 }
adamc@135 1962
adamc@135 1963
adamc@311 1964 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286 1965 int len;
adamc@286 1966 char *r;
adamc@286 1967
adamc@311 1968 uw_check_heap(ctx, INTS_MAX);
adamc@666 1969 r = ctx->heap.front;
adamc@286 1970 sprintf(r, "%lld%n", n, &len);
adamc@666 1971 ctx->heap.front += len+1;
adamc@286 1972 return r;
adamc@286 1973 }
adamc@286 1974
adamc@428 1975 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286 1976 int len;
adamc@286 1977
adamc@311 1978 uw_check(ctx, INTS_MAX);
adamc@666 1979 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1980 ctx->page.front += len;
adamc@428 1981
adamc@428 1982 return uw_unit_v;
adamc@286 1983 }
adamc@286 1984
adam@1358 1985 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358 1986 unsigned int n = ch;
adam@1358 1987 int len;
adam@1358 1988 char *r;
adam@1358 1989
adam@1358 1990 uw_check_heap(ctx, INTS_MAX+3);
adam@1358 1991 r = ctx->heap.front;
adam@1358 1992 sprintf(r, "&#%u;%n", n, &len);
adam@1358 1993 ctx->heap.front += len+1;
adam@1358 1994 return r;
adam@1358 1995 }
adam@1358 1996
adam@1358 1997 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358 1998 unsigned int n = ch;
adam@1358 1999 int len;
adam@1358 2000
adam@1358 2001 uw_check(ctx, INTS_MAX+3);
adam@1358 2002 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358 2003 ctx->page.front += len;
adam@1358 2004 return uw_unit_v;
adam@1358 2005 }
adam@1358 2006
adamc@311 2007 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286 2008 int len;
adamc@286 2009 char *r;
adamc@286 2010
adamc@311 2011 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 2012 r = ctx->heap.front;
adamc@286 2013 sprintf(r, "%g%n", n, &len);
adamc@666 2014 ctx->heap.front += len+1;
adamc@286 2015 return r;
adamc@286 2016 }
adamc@286 2017
adamc@428 2018 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286 2019 int len;
adamc@286 2020
adamc@311 2021 uw_check(ctx, FLOATS_MAX);
adamc@666 2022 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 2023 ctx->page.front += len;
adamc@428 2024
adamc@428 2025 return uw_unit_v;
adamc@286 2026 }
adamc@286 2027
adam@1365 2028 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360 2029 int len;
adam@1360 2030 char *r;
adam@1360 2031
adam@1360 2032 uw_check_heap(ctx, INTS_MAX);
adam@1360 2033 r = ctx->heap.front;
adamc@1377 2034 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360 2035 ctx->heap.front += len+1;
adam@1360 2036 return r;
adam@1360 2037 }
adam@1360 2038
adam@1365 2039 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360 2040 int len;
adam@1360 2041
adam@1360 2042 uw_check(ctx, INTS_MAX);
adam@1360 2043 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360 2044 ctx->page.front += len;
adam@1360 2045
adam@1360 2046 return uw_unit_v;
adam@1360 2047 }
adam@1360 2048
adam@1444 2049 char *uw_Basis_htmlifyString(uw_context ctx, const char *s) {
adamc@137 2050 char *r, *s2;
adamc@137 2051
adamc@311 2052 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137 2053
adamc@666 2054 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054 2055 unsigned char c = *s;
adamc@137 2056
adamc@137 2057 switch (c) {
adamc@137 2058 case '<':
adamc@137 2059 strcpy(s2, "&lt;");
adamc@137 2060 s2 += 4;
adamc@137 2061 break;
adamc@137 2062 case '&':
adamc@137 2063 strcpy(s2, "&amp;");
adamc@137 2064 s2 += 5;
adamc@137 2065 break;
adamc@137 2066 default:
adamc@1059 2067 *s2++ = c;
adamc@137 2068 }
adamc@137 2069 }
adamc@137 2070
adamc@137 2071 *s2++ = 0;
adamc@666 2072 ctx->heap.front = s2;
adamc@137 2073 return r;
adamc@135 2074 }
adamc@135 2075
adamc@428 2076 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321 2077 uw_check(ctx, strlen(s) * 6);
adamc@135 2078
adamc@135 2079 for (; *s; s++) {
adamc@1054 2080 unsigned char c = *s;
adamc@135 2081
adamc@135 2082 switch (c) {
adamc@135 2083 case '<':
adamc@311 2084 uw_write_unsafe(ctx, "&lt;");
adamc@135 2085 break;
adamc@135 2086 case '&':
adamc@311 2087 uw_write_unsafe(ctx, "&amp;");
adamc@135 2088 break;
adamc@135 2089 default:
adamc@1059 2090 uw_writec_unsafe(ctx, c);
adamc@135 2091 }
adamc@135 2092 }
adamc@428 2093
adamc@428 2094 return uw_unit_v;
adamc@135 2095 }
adamc@180 2096
adamc@311 2097 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 2098 if (b == uw_Basis_False)
adamc@286 2099 return "False";
adamc@286 2100 else
adamc@286 2101 return "True";
adamc@286 2102 }
adamc@286 2103
adamc@428 2104 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311 2105 if (b == uw_Basis_False) {
adamc@311 2106 uw_check(ctx, 6);
adamc@666 2107 strcpy(ctx->page.front, "False");
adamc@666 2108 ctx->page.front += 5;
adamc@286 2109 } else {
adamc@311 2110 uw_check(ctx, 5);
adamc@666 2111 strcpy(ctx->page.front, "True");
adamc@666 2112 ctx->page.front += 4;
adamc@286 2113 }
adamc@428 2114
adamc@428 2115 return uw_unit_v;
adamc@286 2116 }
adamc@286 2117
adamc@436 2118 #define TIME_FMT "%x %X"
adamc@438 2119 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436 2120
adamc@436 2121 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436 2122 size_t len;
adamc@436 2123 char *r;
adam@1392 2124 struct tm stm = {};
adam@1392 2125 stm.tm_isdst = -1;
adamc@436 2126
adam@1365 2127 if (localtime_r(&t.seconds, &stm)) {
adamc@436 2128 uw_check_heap(ctx, TIMES_MAX);
adamc@666 2129 r = ctx->heap.front;
adamc@436 2130 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 2131 ctx->heap.front += len+1;
adamc@436 2132 return r;
adamc@436 2133 } else
adamc@436 2134 return "<i>Invalid time</i>";
adamc@436 2135 }
adamc@436 2136
adamc@436 2137 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436 2138 size_t len;
adamc@436 2139 char *r;
adam@1392 2140 struct tm stm = {};
adam@1392 2141 stm.tm_isdst = -1;
adamc@436 2142
adam@1365 2143 if (localtime_r(&t.seconds, &stm)) {
adamc@436 2144 uw_check(ctx, TIMES_MAX);
adamc@666 2145 r = ctx->page.front;
adamc@436 2146 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 2147 ctx->page.front += len;
adamc@436 2148 } else {
adamc@436 2149 uw_check(ctx, 20);
adamc@666 2150 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666 2151 ctx->page.front += 19;
adamc@436 2152 }
adamc@436 2153
adamc@436 2154 return uw_unit_v;
adamc@436 2155 }
adamc@436 2156
adam@1446 2157 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446 2158 int len;
adam@1446 2159 char *r;
adam@1446 2160
adam@1446 2161 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446 2162 r = ctx->heap.front;
adam@1446 2163 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446 2164 ctx->heap.front += len+1;
adam@1446 2165 return r;
adam@1446 2166 }
adam@1446 2167
adam@1446 2168 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446 2169 int len;
adam@1446 2170
adam@1446 2171 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446 2172 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446 2173 ctx->page.front += len;
adam@1446 2174
adam@1446 2175 return uw_unit_v;
adam@1446 2176 }
adam@1446 2177
adamc@821 2178 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388 2179 while (n >= 0) {
adam@1388 2180 if (*s == 0)
adam@1388 2181 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388 2182
adam@1388 2183 if (n == 0)
adam@1388 2184 return *s;
adam@1388 2185
adam@1388 2186 --n;
adam@1388 2187 ++s;
adam@1388 2188 }
adam@1388 2189
adam@1388 2190 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821 2191 }
adamc@821 2192
adamc@821 2193 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388 2194 while (n >= 0) {
adam@1388 2195 if (*s == 0 || n == 0)
adam@1388 2196 return s;
adam@1388 2197
adam@1388 2198 --n;
adam@1388 2199 ++s;
adam@1388 2200 }
adam@1388 2201
adam@1388 2202 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821 2203 }
adamc@821 2204
adamc@828 2205 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828 2206 return strlen(s);
adamc@828 2207 }
adamc@828 2208
adam@1388 2209 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388 2210 while (n > 0) {
adam@1388 2211 if (*s == 0)
adam@1388 2212 return uw_Basis_False;
adam@1388 2213
adam@1388 2214 --n;
adam@1388 2215 ++s;
adam@1388 2216 }
adam@1388 2217
adam@1388 2218 return uw_Basis_True;
adam@1388 2219 }
adam@1388 2220
adamc@829 2221 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829 2222 return strchr(s, ch);
adamc@829 2223 }
adamc@829 2224
adamc@831 2225 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831 2226 return strcspn(s, chs);
adamc@831 2227 }
adamc@831 2228
adamc@829 2229 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829 2230 uw_Basis_string r = strchr(s, ch);
adamc@829 2231 if (r == NULL)
adamc@829 2232 return NULL;
adamc@829 2233 else {
adamc@829 2234 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829 2235 *nr = r - s;
adamc@829 2236 return nr;
adamc@829 2237 }
adamc@829 2238 }
adamc@829 2239
adam@1390 2240 uw_Basis_int *uw_Basis_strsindex(uw_context ctx, const char *haystack, const char *needle) {
adam@1390 2241 uw_Basis_string r = strstr(haystack, needle);
adam@1390 2242 if (r == NULL)
adam@1390 2243 return NULL;
adam@1390 2244 else {
adam@1390 2245 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390 2246 *nr = r - haystack;
adam@1390 2247 return nr;
adam@1390 2248 }
adam@1390 2249 }
adam@1390 2250
adamc@311 2251 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828 2252 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180 2253 char *s;
adamc@180 2254
adamc@311 2255 uw_check_heap(ctx, len);
adamc@180 2256
adamc@666 2257 s = ctx->heap.front;
adamc@180 2258
adamc@180 2259 strcpy(s, s1);
adamc@180 2260 strcat(s, s2);
adamc@666 2261 ctx->heap.front += len;
adamc@180 2262
adamc@180 2263 return s;
adamc@180 2264 }
adamc@278 2265
adamc@829 2266 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829 2267 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829 2268
adamc@829 2269 if (start < 0)
adamc@829 2270 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829 2271 if (len < 0)
adamc@829 2272 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829 2273 if (start + len > full_len)
adamc@829 2274 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829 2275
adamc@829 2276 if (start + len == full_len)
adamc@829 2277 return &s[start];
adamc@829 2278 else {
adamc@829 2279 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959 2280 memcpy(r, s+start, len);
adamc@829 2281 r[len] = 0;
adamc@829 2282 return r;
adamc@829 2283 }
adamc@829 2284
adamc@829 2285 }
adamc@829 2286
adamc@1023 2287 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023 2288 char *r;
adamc@1023 2289
adamc@1023 2290 uw_check_heap(ctx, 2);
adamc@1023 2291 r = ctx->heap.front;
adamc@1023 2292 r[0] = ch;
adamc@1023 2293 r[1] = 0;
adamc@1023 2294
adamc@1023 2295 ctx->heap.front += 2;
adamc@1023 2296
adamc@1023 2297 return r;
adamc@1023 2298 }
adamc@1023 2299
adamc@737 2300 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828 2301 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278 2302 char *s;
adamc@278 2303
adamc@311 2304 uw_check_heap(ctx, len);
adamc@278 2305
adamc@666 2306 s = ctx->heap.front;
adamc@278 2307
adamc@278 2308 strcpy(s, s1);
adamc@666 2309 ctx->heap.front += len;
adamc@278 2310
adamc@278 2311 return s;
adamc@278 2312 }
adamc@280 2313
adam@1295 2314 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295 2315 if (ctx->error_message[0]) {
adam@1295 2316 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295 2317 ctx->error_message[0] = 0;
adam@1295 2318 return s;
adam@1295 2319 } else
adam@1295 2320 return NULL;
adam@1295 2321 }
adam@1295 2322
adamc@737 2323 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493 2324 if (s1)
adamc@737 2325 return uw_strdup(ctx, s1);
adamc@493 2326 else
adamc@493 2327 return NULL;
adamc@493 2328 }
adamc@493 2329
adamc@742 2330 char *uw_memdup(uw_context ctx, const char *p, size_t len) {
adamc@742 2331 char *r = uw_malloc(ctx, len);
adamc@742 2332 memcpy(r, p, len);
adamc@742 2333 return r;
adamc@742 2334 }
adamc@280 2335
adamc@879 2336 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879 2337
adamc@311 2338 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281 2339 int len;
adamc@281 2340 char *r;
adamc@281 2341
adamc@311 2342 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666 2343 r = ctx->heap.front;
adamc@879 2344 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666 2345 ctx->heap.front += len+1;
adamc@281 2346 return r;
adamc@281 2347 }
adamc@281 2348
adamc@467 2349 char *uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int *n) {
adamc@467 2350 if (n == NULL)
adamc@467 2351 return "NULL";
adamc@467 2352 else
adamc@467 2353 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467 2354 }
adamc@467 2355
adamc@879 2356 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879 2357
adamc@311 2358 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281 2359 int len;
adamc@281 2360 char *r;
adamc@281 2361
adamc@311 2362 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666 2363 r = ctx->heap.front;
adamc@879 2364 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666 2365 ctx->heap.front += len+1;
adamc@281 2366 return r;
adamc@281 2367 }
adamc@281 2368
adamc@467 2369 char *uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float *n) {
adamc@467 2370 if (n == NULL)
adamc@467 2371 return "NULL";
adamc@467 2372 else
adamc@467 2373 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467 2374 }
adamc@467 2375
adamc@879 2376 int uw_Estrings = 1;
adamc@879 2377 char *uw_sqlsuffixString = "::text";
adamc@1011 2378 char *uw_sqlsuffixChar = "::char";
adamc@281 2379
adamc@311 2380 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280 2381 char *r, *s2;
adamc@280 2382
adamc@879 2383 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280 2384
adamc@666 2385 r = s2 = ctx->heap.front;
adamc@879 2386 if (uw_Estrings)
adamc@879 2387 *s2++ = 'E';
adamc@280 2388 *s2++ = '\'';
adamc@280 2389
adamc@280 2390 for (; *s; s++) {
adamc@280 2391 char c = *s;
adamc@280 2392
adamc@280 2393 switch (c) {
adamc@280 2394 case '\'':
adamc@885 2395 if (uw_Estrings)
adamc@885 2396 strcpy(s2, "\\'");
adamc@885 2397 else
adamc@885 2398 strcpy(s2, "''");
adamc@280 2399 s2 += 2;
adamc@280 2400 break;
adamc@280 2401 case '\\':
adamc@885 2402 if (uw_Estrings) {
adamc@885 2403 strcpy(s2, "\\\\");
adamc@885 2404 s2 += 2;
adamc@885 2405 } else
adamc@885 2406 *s2++ = '\\';
adamc@280 2407 break;
adamc@280 2408 default:
adamc@1150 2409 if (isprint((int)c))
adamc@280 2410 *s2++ = c;
adamc@879 2411 else if (uw_Estrings) {
adamc@737 2412 sprintf(s2, "\\%03o", c);
adamc@280 2413 s2 += 4;
adamc@280 2414 }
adamc@879 2415 else
adamc@879 2416 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280 2417 }
adamc@280 2418 }
adamc@280 2419
adamc@879 2420 *s2++ = '\'';
adamc@879 2421 strcpy(s2, uw_sqlsuffixString);
adamc@879 2422 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280 2423 return r;
adamc@280 2424 }
adamc@281 2425
adamc@1011 2426 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011 2427 char *r, *s2;
adamc@1011 2428
adamc@1011 2429 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011 2430
adamc@1011 2431 r = s2 = ctx->heap.front;
adamc@1011 2432 if (uw_Estrings)
adamc@1011 2433 *s2++ = 'E';
adamc@1011 2434 *s2++ = '\'';
adamc@1011 2435
adamc@1011 2436 switch (c) {
adamc@1011 2437 case '\'':
adamc@1011 2438 if (uw_Estrings)
adamc@1011 2439 strcpy(s2, "\\'");
adamc@1011 2440 else
adamc@1011 2441 strcpy(s2, "''");
adamc@1011 2442 s2 += 2;
adamc@1011 2443 break;
adamc@1011 2444 case '\\':
adamc@1011 2445 if (uw_Estrings) {
adamc@1011 2446 strcpy(s2, "\\\\");
adamc@1011 2447 s2 += 2;
adamc@1011 2448 } else
adamc@1011 2449 *s2++ = '\\';
adamc@1011 2450 break;
adamc@1011 2451 default:
adamc@1150 2452 if (isprint((int)c))
adamc@1011 2453 *s2++ = c;
adamc@1011 2454 else if (uw_Estrings) {
adamc@1011 2455 sprintf(s2, "\\%03o", c);
adamc@1011 2456 s2 += 4;
adamc@1011 2457 }
adamc@1011 2458 else
adamc@1011 2459 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011 2460 }
adamc@1011 2461
adamc@1011 2462 *s2++ = '\'';
adamc@1011 2463 strcpy(s2, uw_sqlsuffixChar);
adamc@1011 2464 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011 2465 return r;
adamc@1011 2466 }
adamc@1011 2467
adamc@879 2468 char *uw_sqlsuffixBlob = "::bytea";
adamc@879 2469
adamc@737 2470 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737 2471 char *r, *s2;
adamc@737 2472 size_t i;
adamc@737 2473
adamc@879 2474 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737 2475
adamc@737 2476 r = s2 = ctx->heap.front;
adamc@879 2477 if (uw_Estrings)
adamc@879 2478 *s2++ = 'E';
adamc@737 2479 *s2++ = '\'';
adamc@737 2480
adamc@737 2481 for (i = 0; i < b.size; ++i) {
adamc@737 2482 char c = b.data[i];
adamc@737 2483
adamc@737 2484 switch (c) {
adamc@737 2485 case '\'':
adamc@885 2486 if (uw_Estrings)
adamc@885 2487 strcpy(s2, "\\'");
adamc@885 2488 else
adamc@885 2489 strcpy(s2, "''");
adamc@737 2490 s2 += 2;
adamc@737 2491 break;
adamc@737 2492 case '\\':
adamc@885 2493 if (uw_Estrings) {
adamc@885 2494 strcpy(s2, "\\\\\\\\");
adamc@885 2495 s2 += 4;
adamc@885 2496 } else
adamc@885 2497 *s2++ = '\\';
adamc@737 2498 break;
adamc@737 2499 default:
adamc@1150 2500 if (isprint((int)c))
adamc@737 2501 *s2++ = c;
adamc@879 2502 else if (uw_Estrings) {
adamc@737 2503 sprintf(s2, "\\\\%03o", c);
adamc@737 2504 s2 += 5;
adamc@737 2505 }
adamc@879 2506 else
adamc@879 2507 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737 2508 }
adamc@737 2509 }
adamc@737 2510
adamc@879 2511 *s2++ = '\'';
adamc@879 2512 strcpy(s2, uw_sqlsuffixBlob);
adamc@879 2513 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737 2514 return r;
adamc@737 2515 }
adamc@737 2516
adamc@682 2517 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 2518 int len;
adamc@682 2519 char *r;
adamc@682 2520 unsigned long long combo = ((unsigned long long)chn.cli << 32) | chn.chn;
adamc@682 2521
adamc@682 2522 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682 2523 r = ctx->heap.front;
adamc@879 2524 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682 2525 ctx->heap.front += len+1;
adamc@682 2526 return r;
adamc@682 2527 }
adamc@682 2528
adamc@682 2529 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 2530 int len;
adamc@682 2531 char *r;
adamc@682 2532 unsigned long long combo = ((unsigned long long)chn.cli << 32) | chn.chn;
adamc@682 2533
adamc@682 2534 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 2535 r = ctx->heap.front;
adamc@682 2536 sprintf(r, "%lld%n", combo, &len);
adamc@682 2537 ctx->heap.front += len+1;
adamc@682 2538 return r;
adamc@682 2539 }
adamc@682 2540
adamc@879 2541 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879 2542
adamc@682 2543 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682 2544 int len;
adamc@682 2545 char *r;
adamc@682 2546
adamc@682 2547 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682 2548 r = ctx->heap.front;
adamc@879 2549 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682 2550 ctx->heap.front += len+1;
adamc@682 2551 return r;
adamc@682 2552 }
adamc@682 2553
adamc@682 2554 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682 2555 int len;
adamc@682 2556 char *r;
adamc@682 2557
adamc@682 2558 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 2559 r = ctx->heap.front;
adamc@682 2560 sprintf(r, "%u%n", cli, &len);
adamc@682 2561 ctx->heap.front += len+1;
adamc@682 2562 return r;
adamc@682 2563 }
adamc@682 2564
adamc@467 2565 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467 2566 if (s == NULL)
adamc@467 2567 return "NULL";
adamc@467 2568 else
adamc@467 2569 return uw_Basis_sqlifyString(ctx, s);
adamc@467 2570 }
adamc@467 2571
adamc@311 2572 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 2573 if (b == uw_Basis_False)
adamc@281 2574 return "FALSE";
adamc@281 2575 else
adamc@281 2576 return "TRUE";
adamc@281 2577 }
adamc@282 2578
adamc@467 2579 char *uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool *b) {
adamc@467 2580 if (b == NULL)
adamc@467 2581 return "NULL";
adamc@467 2582 else
adamc@467 2583 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467 2584 }
adamc@467 2585
adamc@439 2586 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439 2587 size_t len;
adamc@682 2588 char *r, *s;
adam@1392 2589 struct tm stm = {};
adam@1392 2590 stm.tm_isdst = -1;
adamc@682 2591
adam@1365 2592 if (localtime_r(&t.seconds, &stm)) {
adamc@682 2593 s = uw_malloc(ctx, TIMES_MAX);
adam@1364 2594 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1367 2595 if (t.microseconds) {
adam@1367 2596 r = uw_malloc(ctx, len + 21);
adam@1367 2597 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1367 2598 } else {
adam@1367 2599 r = uw_malloc(ctx, len + 14);
adam@1367 2600 sprintf(r, "'%s'::timestamp", s);
adam@1367 2601 }
adamc@682 2602 return r;
adamc@682 2603 } else
adamc@682 2604 return "<Invalid time>";
adamc@682 2605 }
adamc@682 2606
adamc@682 2607 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682 2608 size_t len;
adamc@439 2609 char *r;
adam@1392 2610 struct tm stm = {};
adam@1392 2611 stm.tm_isdst = -1;
adamc@439 2612
adam@1365 2613 if (localtime_r(&t.seconds, &stm)) {
adamc@439 2614 uw_check_heap(ctx, TIMES_MAX);
adamc@666 2615 r = ctx->heap.front;
adamc@439 2616 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 2617 ctx->heap.front += len+1;
adamc@439 2618 return r;
adamc@439 2619 } else
adamc@439 2620 return "<Invalid time>";
adamc@439 2621 }
adamc@439 2622
adam@1364 2623 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364 2624 size_t len;
adam@1364 2625 char *r;
adam@1392 2626 struct tm stm = {};
adam@1392 2627 stm.tm_isdst = -1;
adam@1364 2628
adam@1365 2629 if (localtime_r(&t.seconds, &stm)) {
adam@1364 2630 uw_check_heap(ctx, TIMES_MAX);
adam@1364 2631 r = ctx->heap.front;
adam@1365 2632 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365 2633 ctx->heap.front += len;
adam@1365 2634 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365 2635 ctx->heap.front += 8;
adam@1364 2636 return r;
adam@1364 2637 } else
adam@1364 2638 return "<Invalid time>";
adam@1364 2639 }
adam@1364 2640
adamc@467 2641 char *uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time *t) {
adamc@467 2642 if (t == NULL)
adamc@467 2643 return "NULL";
adamc@467 2644 else
adamc@467 2645 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467 2646 }
adamc@467 2647
adamc@311 2648 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311 2649 static uw_Basis_int true = 1;
adamc@311 2650 static uw_Basis_int false = 0;
adamc@282 2651
adamc@311 2652 if (b == uw_Basis_False)
adamc@282 2653 return (char *)&false;
adamc@282 2654 else
adamc@282 2655 return (char *)&true;
adamc@282 2656 }
adamc@284 2657
adamc@311 2658 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284 2659 int len;
adamc@284 2660 char *r;
adamc@284 2661
adamc@311 2662 uw_check_heap(ctx, INTS_MAX);
adamc@666 2663 r = ctx->heap.front;
adamc@284 2664 sprintf(r, "%lld%n", n, &len);
adamc@666 2665 ctx->heap.front += len+1;
adamc@284 2666 return r;
adamc@284 2667 }
adamc@285 2668
adamc@311 2669 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285 2670 int len;
adamc@285 2671 char *r;
adamc@285 2672
adamc@311 2673 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 2674 r = ctx->heap.front;
adamc@285 2675 sprintf(r, "%g%n", n, &len);
adamc@666 2676 ctx->heap.front += len+1;
adamc@285 2677 return r;
adamc@285 2678 }
adamc@285 2679
adamc@821 2680 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821 2681 char *r = uw_malloc(ctx, 2);
adamc@821 2682 r[0] = ch;
adamc@821 2683 r[1] = 0;
adamc@821 2684 return r;
adamc@821 2685 }
adamc@821 2686
adamc@311 2687 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311 2688 if (b == uw_Basis_False)
adamc@285 2689 return "False";
adamc@285 2690 else
adamc@285 2691 return "True";
adamc@285 2692 }
adamc@288 2693
adamc@436 2694 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436 2695 size_t len;
adamc@436 2696 char *r;
adam@1392 2697 struct tm stm = {};
adam@1392 2698 stm.tm_isdst = -1;
adamc@436 2699
adam@1365 2700 if (localtime_r(&t.seconds, &stm)) {
adamc@436 2701 uw_check_heap(ctx, TIMES_MAX);
adamc@666 2702 r = ctx->heap.front;
adamc@436 2703 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 2704 ctx->heap.front += len+1;
adamc@436 2705 return r;
adamc@436 2706 } else
adamc@436 2707 return "<Invalid time>";
adamc@436 2708 }
adamc@288 2709
adam@1359 2710 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352 2711 size_t len;
adam@1352 2712 char *r;
adam@1392 2713 struct tm stm = {};
adam@1392 2714 stm.tm_isdst = -1;
adam@1352 2715
adam@1365 2716 if (localtime_r(&t.seconds, &stm)) {
adam@1352 2717 uw_check_heap(ctx, TIMES_MAX);
adam@1352 2718 r = ctx->heap.front;
adam@1352 2719 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352 2720 ctx->heap.front += len+1;
adam@1352 2721 return r;
adam@1352 2722 } else
adam@1352 2723 return "<Invalid time>";
adam@1352 2724 }
adam@1352 2725
adamc@311 2726 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288 2727 char *endptr;
adamc@311 2728 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288 2729
adamc@288 2730 if (*s != '\0' && *endptr == '\0') {
adamc@311 2731 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288 2732 *r = n;
adamc@288 2733 return r;
adamc@288 2734 } else
adamc@288 2735 return NULL;
adamc@288 2736 }
adamc@289 2737
adamc@311 2738 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289 2739 char *endptr;
adamc@311 2740 uw_Basis_float n = strtod(s, &endptr);
adamc@289 2741
adamc@289 2742 if (*s != '\0' && *endptr == '\0') {
adamc@311 2743 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289 2744 *r = n;
adamc@289 2745 return r;
adamc@289 2746 } else
adamc@289 2747 return NULL;
adamc@289 2748 }
adamc@289 2749
adamc@821 2750 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821 2751 if (s[0] == 0) {
adamc@821 2752 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821 2753 r[0] = 0;
adamc@821 2754 return r;
adamc@821 2755 } else if (s[1] != 0)
adamc@821 2756 return NULL;
adamc@821 2757 else {
adamc@821 2758 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821 2759 r[0] = s[0];
adamc@821 2760 return r;
adamc@821 2761 }
adamc@821 2762 }
adamc@821 2763
adamc@311 2764 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311 2765 static uw_Basis_bool true = uw_Basis_True;
adamc@311 2766 static uw_Basis_bool false = uw_Basis_False;
adamc@289 2767
adamc@289 2768 if (!strcasecmp (s, "True"))
adamc@289 2769 return &true;
adamc@289 2770 else if (!strcasecmp (s, "False"))
adamc@289 2771 return &false;
adamc@289 2772 else
adamc@289 2773 return NULL;
adamc@289 2774 }
adamc@292 2775
adamc@436 2776 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438 2777 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adam@1374 2778 struct tm stm = {};
adam@1392 2779 stm.tm_isdst = -1;
adamc@436 2780
adamc@439 2781 if (dot) {
adamc@439 2782 *dot = 0;
adamc@439 2783 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439 2784 *dot = '.';
adamc@439 2785 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365 2786 r->seconds = mktime(&stm);
adam@1365 2787 r->microseconds = 0;
adamc@439 2788 return r;
adamc@439 2789 }
adamc@439 2790 else {
adamc@439 2791 *dot = '.';
adamc@439 2792 return NULL;
adamc@439 2793 }
adamc@436 2794 }
adamc@439 2795 else {
adamc@439 2796 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439 2797 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365 2798 r->seconds = mktime(&stm);
adam@1365 2799 r->microseconds = 0;
adamc@439 2800 return r;
adamc@439 2801 }
adamc@439 2802 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439 2803 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365 2804 r->seconds = mktime(&stm);
adam@1365 2805 r->microseconds = 0;
adamc@439 2806 return r;
adamc@439 2807 }
adamc@439 2808 else
adamc@439 2809 return NULL;
adamc@439 2810 }
adamc@436 2811 }
adamc@436 2812
adam@1352 2813 uw_Basis_time *uw_Basis_stringToTimef(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352 2814 char *end = strchr(s, 0);
adam@1374 2815 struct tm stm = {};
adam@1392 2816 stm.tm_isdst = -1;
adam@1352 2817
adam@1352 2818 if (strptime(s, fmt, &stm) == end) {
adam@1352 2819 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365 2820 r->seconds = mktime(&stm);
adam@1365 2821 r->microseconds = 0;
adam@1352 2822 return r;
adam@1352 2823 }
adam@1352 2824 else
adam@1352 2825 return NULL;
adam@1352 2826 }
adam@1352 2827
adamc@311 2828 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292 2829 char *endptr;
adamc@311 2830 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292 2831
adamc@292 2832 if (*s != '\0' && *endptr == '\0')
adamc@292 2833 return n;
adamc@292 2834 else
adam@1444 2835 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292 2836 }
adamc@293 2837
adamc@682 2838 #include <errno.h>
adamc@682 2839
adamc@678 2840 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682 2841 unsigned long long n;
adamc@682 2842
adamc@682 2843 if (sscanf(s, "%llu", &n) < 1)
adam@1444 2844 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682 2845 else {
adamc@682 2846 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682 2847 return ch;
adamc@682 2848 }
adamc@682 2849 }
adamc@682 2850
adamc@682 2851 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678 2852 char *endptr;
adamc@682 2853 unsigned long n = strtoul(s, &endptr, 10);
adamc@678 2854
adamc@678 2855 if (*s != '\0' && *endptr == '\0')
adamc@678 2856 return n;
adamc@678 2857 else
adam@1444 2858 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678 2859 }
adamc@678 2860
adamc@311 2861 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293 2862 char *endptr;
adamc@311 2863 uw_Basis_float n = strtod(s, &endptr);
adamc@293 2864
adamc@293 2865 if (*s != '\0' && *endptr == '\0')
adamc@293 2866 return n;
adamc@293 2867 else
adam@1444 2868 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293 2869 }
adamc@293 2870
adamc@821 2871 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821 2872 if (s[0] == 0)
adamc@821 2873 return 0;
adamc@821 2874 else if (s[1] != 0)
adam@1444 2875 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821 2876 else
adamc@821 2877 return s[0];
adamc@821 2878 }
adamc@821 2879
adamc@311 2880 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296 2881 if (!strcasecmp(s, "T") || !strcasecmp (s, "True"))
adamc@311 2882 return uw_Basis_True;
adamc@296 2883 else if (!strcasecmp(s, "F") || !strcasecmp (s, "False"))
adamc@311 2884 return uw_Basis_False;
adamc@293 2885 else
adam@1444 2886 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293 2887 }
adamc@436 2888
adam@1352 2889 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352 2890 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adam@1352 2891 struct tm stm = {};
adam@1392 2892 stm.tm_isdst = -1;
adam@1352 2893
adam@1352 2894 if (dot) {
adam@1352 2895 *dot = 0;
adam@1352 2896 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352 2897 *dot = '.';
adam@1410 2898 char usec[] = "000000";
adam@1410 2899 int len = strlen(dot+1);
adam@1410 2900 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410 2901 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365 2902 return r;
adam@1352 2903 }
adam@1352 2904 else {
adam@1352 2905 *dot = '.';
adam@1444 2906 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352 2907 }
adam@1352 2908 }
adam@1352 2909 else {
adam@1352 2910 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365 2911 uw_Basis_time r = { mktime(&stm) };
adam@1365 2912 return r;
adam@1352 2913 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365 2914 uw_Basis_time r = { mktime(&stm) };
adam@1365 2915 return r;
adam@1352 2916 } else
adam@1444 2917 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352 2918 }
adam@1352 2919 }
adam@1352 2920
adamc@436 2921 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438 2922 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adamc@436 2923 struct tm stm = {};
adam@1392 2924 stm.tm_isdst = -1;
adamc@436 2925
adamc@438 2926 if (dot) {
adamc@438 2927 *dot = 0;
adamc@438 2928 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438 2929 *dot = '.';
adam@1365 2930 {
adam@1365 2931 uw_Basis_time r = { mktime(&stm) };
adam@1365 2932 return r;
adam@1365 2933 }
adamc@438 2934 }
adamc@438 2935 else {
adamc@438 2936 *dot = '.';
adam@1444 2937 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438 2938 }
adamc@438 2939 }
adamc@438 2940 else {
adam@1365 2941 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365 2942 uw_Basis_time r = { mktime(&stm) };
adam@1365 2943 return r;
adam@1365 2944 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365 2945 uw_Basis_time r = { mktime(&stm) };
adam@1365 2946 return r;
adam@1365 2947 } else
adam@1444 2948 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438 2949 }
adamc@436 2950 }
adamc@457 2951
adam@1352 2952 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352 2953 char *end = strchr(s, 0);
adamc@939 2954 struct tm stm = {};
adam@1392 2955 stm.tm_isdst = -1;
adamc@939 2956
adam@1365 2957 if (strptime(s, fmt, &stm) == end) {
adam@1365 2958 uw_Basis_time r = { mktime(&stm) };
adam@1365 2959 return r;
adam@1365 2960 } else
adam@1444 2961 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939 2962 }
adamc@939 2963
adamc@742 2964 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742 2965 char *r = ctx->heap.front;
adamc@742 2966 uw_Basis_blob b = {len, r};
adamc@742 2967
adamc@742 2968 uw_check_heap(ctx, len);
adamc@742 2969
adamc@742 2970 while (*s) {
adamc@742 2971 if (s[0] == '\\') {
adamc@742 2972 if (s[1] == '\\') {
adamc@742 2973 *r++ = '\\';
adamc@742 2974 s += 2;
adamc@1153 2975 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adamc@742 2976 *r++ = (s[1] - '0') * 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742 2977 s += 4;
adamc@742 2978 }
adamc@742 2979 else {
adamc@742 2980 *r++ = '\\';
adamc@742 2981 ++s;
adamc@742 2982 }
adamc@742 2983 } else {
adamc@742 2984 *r++ = s[0];
adamc@742 2985 ++s;
adamc@742 2986 }
adamc@742 2987 }
adamc@742 2988
adamc@742 2989 b.size = r - ctx->heap.front;
adamc@742 2990 ctx->heap.front = r;
adamc@742 2991 return b;
adamc@742 2992 }
adamc@742 2993
adam@1402 2994 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052 2995
adamc@463 2996 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463 2997 int len = strlen(c);
adamc@854 2998 char *p = ctx->outHeaders.start;
adamc@474 2999
adamc@1134 3000 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474 3001 char *p2;
adamc@474 3002 p += 13;
adamc@474 3003 p2 = strchr(p, '=');
adamc@474 3004
adamc@474 3005 if (p2) {
adamc@474 3006 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474 3007
adamc@474 3008 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052 3009 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052 3010 return NULL;
adamc@1052 3011 else {
adamc@1052 3012 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052 3013 memcpy(ret, p2+1, sz);
adamc@1052 3014 ret[sz] = 0;
adamc@1052 3015 return ret;
adamc@1052 3016 }
adamc@474 3017 }
adamc@474 3018 }
adamc@474 3019 }
adamc@463 3020
adamc@1134 3021 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051 3022 char *p2;
adamc@1051 3023
adamc@854 3024 while (1) {
adamc@1051 3025 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134 3026 if ((p2 = strchr(p, ';'))) {
adamc@1051 3027 size_t n = p2 - (p + len);
adamc@1051 3028 char *r = uw_malloc(ctx, n);
adamc@1051 3029 memcpy(r, p + 1 + len, n-1);
adamc@1051 3030 r[n-1] = 0;
adamc@1051 3031 return r;
adamc@1051 3032 } else
adamc@1051 3033 return p + 1 + len;
adamc@1134 3034 } else if ((p = strchr(p, ';')))
adamc@854 3035 p += 2;
adamc@463 3036 else
adamc@463 3037 return NULL;
adamc@463 3038 }
adamc@463 3039 }
adamc@792 3040
adamc@792 3041 return NULL;
adamc@457 3042 }
adamc@462 3043
adamc@1050 3044 uw_unit uw_Basis_set_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c, uw_Basis_string v, uw_Basis_time *expires, uw_Basis_bool secure) {
adamc@462 3045 uw_write_header(ctx, "Set-Cookie: ");
adamc@462 3046 uw_write_header(ctx, c);
adamc@462 3047 uw_write_header(ctx, "=");
adamc@462 3048 uw_write_header(ctx, v);
adamc@466 3049 uw_write_header(ctx, "; path=");
adamc@466 3050 uw_write_header(ctx, prefix);
adamc@1050 3051 if (expires) {
adamc@1050 3052 char formatted[30];
adam@1392 3053 struct tm tm = {};
adam@1392 3054 tm.tm_isdst = -1;
adamc@1050 3055
adam@1365 3056 gmtime_r(&expires->seconds, &tm);
adamc@1050 3057
adamc@1050 3058 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050 3059
adamc@1050 3060 uw_write_header(ctx, "; expires=");
adamc@1050 3061 uw_write_header(ctx, formatted);
adamc@1050 3062 }
adamc@1050 3063 if (secure)
adamc@1050 3064 uw_write_header(ctx, "; secure");
adamc@462 3065 uw_write_header(ctx, "\r\n");
adamc@462 3066
adamc@462 3067 return uw_unit_v;
adamc@462 3068 }
adamc@667 3069
adamc@1050 3070 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050 3071 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050 3072 uw_write_header(ctx, c);
adamc@1050 3073 uw_write_header(ctx, "=; path=");
adamc@1050 3074 uw_write_header(ctx, prefix);
adamc@1052 3075 uw_write_header(ctx, "; " THE_PAST "\r\n");
adamc@1050 3076
adamc@1050 3077 return uw_unit_v;
adamc@1050 3078 }
adamc@1050 3079
adamc@1113 3080 size_t uw_deltas_max = SIZE_MAX;
adamc@1113 3081
adamc@682 3082 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682 3083 unsigned i;
adamc@682 3084 delta *d;
adamc@671 3085
adamc@682 3086 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682 3087 if (ctx->deltas[i].client == client)
adamc@682 3088 return &ctx->deltas[i];
adamc@671 3089
adamc@682 3090 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113 3091 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113 3092 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113 3093
adamc@682 3094 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369 3095 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682 3096 }
adamc@671 3097
adamc@682 3098 d = &ctx->deltas[ctx->used_deltas++];
adamc@682 3099 d->client = client;
adam@1369 3100 uw_buffer_reset(&d->msgs);
adamc@682 3101 return d;
adamc@671 3102 }
adamc@671 3103
adamc@668 3104 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682 3105 if (ctx->client == NULL)
adamc@682 3106 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671 3107
adamc@682 3108 return new_channel(ctx->client);
adamc@668 3109 }
adamc@668 3110
adamc@668 3111 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682 3112 delta *d = allocate_delta(ctx, chn.cli);
adamc@682 3113 size_t len;
adamc@682 3114 int preLen;
adamc@682 3115 char pre[INTS_MAX + 2];
adamc@668 3116
adamc@682 3117 len = strlen(msg);
adamc@682 3118
adamc@682 3119 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682 3120
adam@1369 3121 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369 3122 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369 3123 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671 3124
adamc@671 3125 return uw_unit_v;
adamc@668 3126 }
adamc@671 3127
adam@1327 3128 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131 3129 int i;
adamc@1131 3130 cleanup *cl;
adamc@1131 3131
adamc@1131 3132 if (ctx->client)
adamc@1131 3133 release_client(ctx->client);
adamc@1131 3134
adamc@1131 3135 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131 3136 cl->func(cl->arg);
adamc@1131 3137
adamc@1131 3138 ctx->cleanup_front = ctx->cleanup;
adamc@1131 3139
adamc@1131 3140 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131 3141 if (ctx->transactionals[i].rollback != NULL)
adamc@1131 3142 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131 3143
adamc@1131 3144 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131 3145 if (ctx->transactionals[i].free)
adam@1327 3146 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131 3147
adamc@1144 3148 return ctx->app ? ctx->app->db_rollback(ctx) : 0;
adamc@1131 3149 }
adamc@1131 3150
adamc@671 3151 void uw_commit(uw_context ctx) {
adamc@1104 3152 int i;
adamc@1104 3153
adamc@1131 3154 if (uw_has_error(ctx)) {
adam@1327 3155 uw_rollback(ctx, 0);
adamc@1131 3156 return;
adamc@1131 3157 }
adamc@1131 3158
adamc@1104 3159 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771 3160 if (ctx->transactionals[i].rollback != NULL)
adamc@1131 3161 if (ctx->transactionals[i].commit) {
adamc@1083 3162 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131 3163 if (uw_has_error(ctx)) {
adam@1327 3164 uw_rollback(ctx, 0);
adamc@1131 3165 return;
adamc@1131 3166 }
adamc@1131 3167 }
adamc@771 3168
adamc@1104 3169 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771 3170 if (ctx->transactionals[i].rollback == NULL)
adamc@1131 3171 if (ctx->transactionals[i].commit) {
adamc@1083 3172 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131 3173 if (uw_has_error(ctx)) {
adam@1327 3174 uw_rollback(ctx, 0);
adamc@1131 3175 return;
adamc@1131 3176 }
adamc@1131 3177 }
adamc@1131 3178
adamc@1131 3179 if (ctx->app->db_commit(ctx)) {
adamc@1131 3180 uw_set_error_message(ctx, "Error running SQL COMMIT");
adamc@1131 3181 return;
adamc@1131 3182 }
adamc@682 3183
adamc@682 3184 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682 3185 delta *d = &ctx->deltas[i];
adamc@682 3186 client *c = find_client(d->client);
adamc@682 3187
adamc@682 3188 assert (c != NULL && c->mode == USED);
adamc@682 3189
adam@1447 3190 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682 3191 }
adamc@682 3192
adamc@682 3193 if (ctx->client)
adamc@685 3194 release_client(ctx->client);
adamc@771 3195
adamc@1104 3196 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083 3197 if (ctx->transactionals[i].free)
adam@1327 3198 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916 3199
adam@1413 3200 if (*ctx->page.front)
adam@1413 3201 uw_writec(ctx, 0);
adam@1413 3202
adamc@916 3203 // Splice script data into appropriate part of page
adamc@1065 3204 if (ctx->returning_indirectly || ctx->script_header[0] == 0) {
adamc@995 3205 char *start = strstr(ctx->page.start, "<sc>");
adamc@995 3206 if (start) {
adam@1369 3207 memmove(start, start + 4, uw_buffer_used(&ctx->page) - (start - ctx->page.start) - 4);
adamc@995 3208 ctx->page.front -= 4;
adamc@995 3209 }
adam@1369 3210 } else if (uw_buffer_used(&ctx->script) == 0) {
adamc@916 3211 size_t len = strlen(ctx->script_header);
adamc@916 3212 char *start = strstr(ctx->page.start, "<sc>");
adamc@916 3213 if (start) {
adam@1369 3214 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) - 4 + len);
adamc@917 3215 start = strstr(ctx->page.start, "<sc>");
adam@1369 3216 memmove(start + len, start + 4, uw_buffer_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916 3217 ctx->page.front += len - 4;
adamc@916 3218 memcpy(start, ctx->script_header, len);
adamc@916 3219 }
adamc@916 3220 } else {
adam@1369 3221 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adamc@916 3222 size_t lenP = lenH + 40 + len;
adamc@916 3223 char *start = strstr(ctx->page.start, "<sc>");
adamc@916 3224 if (start) {
adam@1369 3225 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) - 4 + lenP);
adamc@917 3226 start = strstr(ctx->page.start, "<sc>");
adam@1369 3227 memmove(start + lenP, start + 4, uw_buffer_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916 3228 ctx->page.front += lenP - 4;
adamc@916 3229 memcpy(start, ctx->script_header, lenH);
adamc@916 3230 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916 3231 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916 3232 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916 3233 }
adamc@916 3234 }
adamc@671 3235 }
adamc@671 3236
adamc@683 3237
adamc@1113 3238 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113 3239
adamc@771 3240 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327 3241 uw_callback_with_retry free) {
adamc@771 3242 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113 3243 if (ctx->used_transactionals+1 > uw_transactionals_max)
adamc@1113 3244 uw_error(ctx, FATAL, "Exceeded limit on number of transactionals");
adamc@1084 3245 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771 3246 ++ctx->n_transactionals;
adamc@771 3247 }
adamc@771 3248
adamc@771 3249 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771 3250 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771 3251 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771 3252 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771 3253 }
adamc@771 3254
adamc@683 3255
adamc@683 3256 // "Garbage collection"
adamc@683 3257
adamc@1121 3258 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121 3259 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121 3260
adamc@1121 3261 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683 3262 int r = setjmp(ctx->jmp_buf);
adamc@683 3263
adamc@1121 3264 if (r == 0)
adamc@1121 3265 uw_do_expunge(ctx, cli, data);
adamc@1121 3266 else
adamc@1121 3267 ctx->app->db_rollback(ctx);
adamc@1121 3268
adamc@1121 3269 uw_post_expunge(ctx, data);
adamc@683 3270
adamc@683 3271 return r;
adamc@683 3272 }
adamc@683 3273
adamc@683 3274 void uw_prune_clients(uw_context ctx) {
adamc@683 3275 client *c, *next, *prev = NULL;
adamc@683 3276 time_t cutoff;
adamc@683 3277
adamc@1094 3278 cutoff = time(NULL) - ctx->app->timeout;
adamc@683 3279
adamc@683 3280 pthread_mutex_lock(&clients_mutex);
adamc@683 3281
adamc@683 3282 for (c = clients_used; c; c = next) {
adamc@683 3283 next = c->next;
adamc@683 3284 pthread_mutex_lock(&c->lock);
adamc@685 3285 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683 3286 failure_kind fk = UNLIMITED_RETRY;
adamc@683 3287 if (prev)
adamc@683 3288 prev->next = next;
adamc@683 3289 else
adamc@683 3290 clients_used = next;
adamc@684 3291 uw_reset(ctx);
adamc@683 3292 while (fk == UNLIMITED_RETRY) {
adamc@1121 3293 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121 3294 if (fk == UNLIMITED_RETRY)
adamc@684 3295 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683 3296 }
adamc@684 3297 if (fk == SUCCESS)
adamc@684 3298 free_client(c);
adamc@1121 3299 else
adamc@856 3300 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683 3301 }
adamc@683 3302 else
adamc@683 3303 prev = c;
adamc@683 3304 pthread_mutex_unlock(&c->lock);
adamc@683 3305 }
adamc@683 3306
adamc@683 3307 pthread_mutex_unlock(&clients_mutex);
adamc@683 3308 }
adamc@687 3309
adamc@687 3310 failure_kind uw_initialize(uw_context ctx) {
adamc@687 3311 int r = setjmp(ctx->jmp_buf);
adamc@687 3312
adamc@687 3313 if (r == 0) {
adamc@1094 3314 if (ctx->app->db_begin(ctx))
adamc@687 3315 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@1094 3316 ctx->app->initializer(ctx);
adamc@1094 3317 if (ctx->app->db_commit(ctx))
adamc@687 3318 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687 3319 }
adamc@687 3320
adamc@687 3321 return r;
adamc@687 3322 }
adamc@717 3323
adamc@1065 3324 static int url_bad(uw_Basis_string s) {
adamc@1065 3325 for (; *s; ++s)
adamc@1153 3326 if (!isgraph((int)*s))
adamc@1065 3327 return 1;
adamc@1065 3328
adamc@1065 3329 return 0;
adamc@1065 3330 }
adamc@1065 3331
adamc@717 3332 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065 3333 if (url_bad(s))
adamc@1065 3334 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094 3335 if (ctx->app->check_url(s))
adamc@770 3336 return s;
adamc@770 3337 else
adamc@770 3338 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717 3339 }
adamc@734 3340
adamc@770 3341 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065 3342 if (url_bad(s))
adamc@1065 3343 return NULL;
adamc@1094 3344 if (ctx->app->check_url(s))
adamc@770 3345 return s;
adamc@770 3346 else
adamc@770 3347 return NULL;
adamc@770 3348 }
adamc@770 3349
adam@1465 3350 static int mime_format(const char *s) {
adamc@770 3351 for (; *s; ++s)
adamc@1153 3352 if (!isalnum((int)*s) && *s != '/' && *s != '-' && *s != '.')
adamc@770 3353 return 0;
adamc@770 3354
adamc@770 3355 return 1;
adamc@770 3356 }
adamc@770 3357
adamc@741 3358 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770 3359 if (!mime_format(s))
adamc@770 3360 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770 3361
adamc@1094 3362 if (ctx->app->check_mime(s))
adamc@770 3363 return s;
adamc@770 3364 else
adamc@770 3365 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770 3366 }
adamc@770 3367
adamc@770 3368 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770 3369 if (!mime_format(s))
adamc@770 3370 return NULL;
adamc@770 3371
adamc@1094 3372 if (ctx->app->check_mime(s))
adamc@770 3373 return s;
adamc@770 3374 else
adamc@770 3375 return NULL;
adamc@741 3376 }
adamc@741 3377
adam@1465 3378 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465 3379 if (!mime_format(s))
adam@1465 3380 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465 3381
adam@1465 3382 if (ctx->app->check_requestHeader(s))
adam@1465 3383 return s;
adam@1465 3384 else
adam@1465 3385 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465 3386 }
adam@1465 3387
adam@1465 3388 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465 3389 if (!mime_format(s))
adam@1465 3390 return NULL;
adam@1465 3391
adam@1465 3392 if (ctx->app->check_requestHeader(s))
adam@1465 3393 return s;
adam@1465 3394 else
adam@1465 3395 return NULL;
adam@1465 3396 }
adam@1465 3397
adam@1465 3398 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465 3399 if (!mime_format(s))
adam@1465 3400 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465 3401
adam@1465 3402 if (ctx->app->check_responseHeader(s))
adam@1465 3403 return s;
adam@1465 3404 else
adam@1465 3405 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465 3406 }
adam@1465 3407
adam@1465 3408 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465 3409 if (!mime_format(s))
adam@1465 3410 return NULL;
adam@1465 3411
adam@1465 3412 if (ctx->app->check_responseHeader(s))
adam@1465 3413 return s;
adam@1465 3414 else
adam@1465 3415 return NULL;
adam@1465 3416 }
adam@1465 3417
adam@1465 3418 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465 3419 return uw_Basis_requestHeader(ctx, name);
adam@1465 3420 }
adam@1465 3421
adam@1465 3422 static int mime_value_format(const char *s) {
adam@1465 3423 for (; *s; ++s)
adam@1465 3424 if (*s == '\r' || *s == '\n')
adam@1465 3425 return 0;
adam@1465 3426
adam@1465 3427 return 1;
adam@1465 3428 }
adam@1465 3429
adam@1465 3430 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465 3431 if (!mime_value_format(value))
adam@1465 3432 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465 3433
adam@1465 3434 uw_write_header(ctx, name);
adam@1465 3435 uw_write_header(ctx, ": ");
adam@1465 3436 uw_write_header(ctx, value);
adam@1465 3437 uw_write_header(ctx, "\r\n");
adam@1465 3438
adam@1465 3439 return uw_unit_v;
adam@1465 3440 }
adam@1465 3441
adamc@734 3442 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734 3443 return s ? s : "";
adamc@734 3444 }
adamc@734 3445
adamc@734 3446 extern int uw_hash_blocksize;
adamc@734 3447
adamc@734 3448 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734 3449 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734 3450 int i;
adamc@734 3451
adamc@734 3452 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734 3453 sprintf(&r[2*i], "%.02X", ((unsigned char *)sig)[i]);
adamc@734 3454
adamc@734 3455 return r;
adamc@734 3456 }
adamc@734 3457
adam@1512 3458 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512 3459 * optimizations that would enable timing attacks. See:
adam@1512 3460 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512 3461 */
adam@1512 3462 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512 3463 int i, x = 0, len1 = strlen(s1);
adam@1512 3464
adam@1512 3465 if (len1 != strlen(s2)) return 0;
adam@1512 3466
adam@1512 3467 for (i = 0; i < len1; ++i) {
adam@1512 3468 __asm__ __volatile__ ("");
adam@1512 3469 x |= s1[i] ^ s2[i];
adam@1512 3470 }
adam@1512 3471
adam@1512 3472 return x == 0;
adam@1512 3473 }
adam@1512 3474
adamc@734 3475 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@1094 3476 return ctx->app->cookie_sig(ctx);
adamc@734 3477 }
adamc@737 3478
adamc@737 3479 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737 3480 return f.name;
adamc@737 3481 }
adamc@737 3482
adamc@740 3483 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740 3484 return f.type;
adamc@740 3485 }
adamc@740 3486
adamc@745 3487 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745 3488 return b.size;
adamc@745 3489 }
adamc@745 3490
adamc@1119 3491 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119 3492 uw_Basis_blob b = {strlen(s), s};
adamc@1119 3493
adamc@1119 3494 return b;
adamc@1119 3495 }
adamc@1119 3496
adamc@737 3497 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737 3498 return f.data;
adamc@737 3499 }
adamc@741 3500
adam@1347 3501 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347 3502 return pb.type;
adam@1347 3503 }
adam@1347 3504
adam@1347 3505 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347 3506 return pb.data;
adam@1347 3507 }
adam@1347 3508
adam@1471 3509 static char *old_headers(uw_context ctx) {
adam@1471 3510 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471 3511 return NULL;
adam@1471 3512 else {
adam@1471 3513 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471 3514
adam@1471 3515 if (s == NULL || strncasecmp(s+1, "Content-type: ", 14))
adam@1471 3516 return NULL;
adam@1471 3517 else {
adam@1471 3518 s = strchr(s+15, '\n');
adam@1471 3519 if (s == NULL)
adam@1471 3520 return NULL;
adam@1471 3521 else
adam@1471 3522 return uw_strdup(ctx, s+1);
adam@1471 3523 }
adam@1471 3524 }
adam@1471 3525 }
adam@1471 3526
adamc@741 3527 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741 3528 cleanup *cl;
adamc@741 3529 int len;
adam@1471 3530 char *oldh;
adamc@741 3531
adam@1451 3532 if (!ctx->allowed_to_return_indirectly)
adam@1451 3533 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451 3534
adamc@1065 3535 ctx->returning_indirectly = 1;
adam@1471 3536 oldh = old_headers(ctx);
adam@1369 3537 uw_buffer_reset(&ctx->outHeaders);
adam@1369 3538 uw_buffer_reset(&ctx->page);
adamc@741 3539
adamc@856 3540 uw_write_header(ctx, on_success);
adamc@856 3541 uw_write_header(ctx, "Content-Type: ");
adamc@741 3542 uw_write_header(ctx, mimeType);
adamc@741 3543 uw_write_header(ctx, "\r\nContent-Length: ");
adam@1369 3544 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134 3545 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741 3546 ctx->outHeaders.front += len;
adamc@1066 3547 uw_write_header(ctx, "\r\n");
adam@1471 3548 if (oldh) uw_write_header(ctx, oldh);
adamc@741 3549
adam@1369 3550 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741 3551
adamc@741 3552 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741 3553 cl->func(cl->arg);
adamc@741 3554
adamc@741 3555 ctx->cleanup_front = ctx->cleanup;
adamc@741 3556
adamc@1065 3557 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065 3558 }
adamc@1065 3559
adamc@1065 3560 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065 3561 cleanup *cl;
adamc@1066 3562 char *s;
adam@1471 3563 char *oldh;
adamc@1065 3564
adam@1451 3565 if (!ctx->allowed_to_return_indirectly)
adam@1451 3566 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451 3567
adamc@1065 3568 ctx->returning_indirectly = 1;
adam@1471 3569 oldh = old_headers(ctx);
adam@1369 3570 uw_buffer_reset(&ctx->page);
adam@1369 3571 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369 3572 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369 3573 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369 3574 uw_buffer_reset(&ctx->outHeaders);
adamc@1065 3575
adam@1409 3576 if (on_success[0])
adam@1409 3577 uw_write_header(ctx, on_redirect);
adam@1409 3578 else
adam@1409 3579 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409 3580 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066 3581 if (s) {
adamc@1066 3582 char *s2;
adam@1409 3583 if (s[0] == '\n') ++s;
adam@1409 3584 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066 3585 *s2 = 0;
adamc@1066 3586 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066 3587 uw_write_header(ctx, s);
adamc@1066 3588 uw_write_header(ctx, "\n");
adamc@1066 3589 }
adamc@1066 3590 }
adamc@1066 3591 }
adamc@1066 3592
adamc@1065 3593 uw_write_header(ctx, "Location: ");
adamc@1065 3594 uw_write_header(ctx, url);
adamc@1065 3595 uw_write_header(ctx, "\r\n\r\n");
adam@1471 3596 if (oldh) uw_write_header(ctx, oldh);
adamc@1065 3597
adamc@1065 3598 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065 3599 cl->func(cl->arg);
adamc@1065 3600
adamc@1065 3601 ctx->cleanup_front = ctx->cleanup;
adamc@1065 3602
adamc@1065 3603 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741 3604 }
adamc@874 3605
adamc@874 3606 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467 3607 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874 3608
adamc@874 3609 for (; *s; ++s) {
adamc@874 3610 if (s[0] == '\'') {
adamc@874 3611 *r++ = '\'';
adamc@874 3612 for (++s; *s; ++s) {
adamc@874 3613 if (s[0] == '\'') {
adamc@874 3614 *r++ = '\'';
adamc@874 3615 break;
adamc@874 3616 } else if (s[0] == '\\') {
adam@1467 3617 *r++ = '\\';
adam@1467 3618 *r++ = s[1];
adam@1467 3619 ++s;
adamc@874 3620 } else
adamc@874 3621 *r++ = s[0];
adamc@874 3622 }
adamc@874 3623 if (*s == 0) break;
adam@1467 3624 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467 3625 s += 3;
adamc@874 3626 else
adamc@874 3627 *r++ = s[0];
adamc@874 3628 }
adamc@874 3629
adam@1467 3630 *r = 0;
adam@1467 3631 return ret;
adamc@874 3632 }
adamc@874 3633
adamc@922 3634 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922 3635 va_list ap;
adamc@922 3636 size_t len = 1;
adamc@922 3637 char *s, *r, *s2;
adamc@922 3638
adamc@922 3639 va_start(ap, ctx);
adamc@922 3640 for (s = va_arg(ap, char*); s; s = va_arg(ap, char*))
adamc@922 3641 len += strlen(s);
adamc@922 3642 va_end(ap);
adamc@922 3643
adamc@922 3644 r = uw_malloc(ctx, len);
adamc@922 3645 va_start(ap, ctx);
adamc@922 3646 for (s2 = r, s = va_arg(ap, char*); s; s = va_arg(ap, char*))
adamc@922 3647 while (*s)
adamc@922 3648 *s2++ = *s++;
adamc@922 3649 va_end(ap);
adamc@922 3650 *s2 = 0;
adamc@922 3651
adamc@922 3652 return r;
adamc@922 3653 }
adamc@1006 3654
adam@1365 3655 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050 3656
adamc@1006 3657 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365 3658 uw_Basis_time r = { time(NULL) };
adam@1365 3659 return r;
adamc@1006 3660 }
adamc@1061 3661
adam@1369 3662 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369 3663 tm.seconds += n;
adam@1365 3664 return tm;
adamc@1138 3665 }
adamc@1138 3666
adam@1514 3667 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514 3668 return difftime(tm2.seconds, tm1.seconds);
adam@1514 3669 }
adam@1514 3670
adam@1514 3671 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514 3672 return tm.seconds;
adam@1514 3673 }
adam@1514 3674
adamc@1061 3675 void *uw_get_global(uw_context ctx, char *name) {
adamc@1061 3676 int i;
adamc@1061 3677
adamc@1061 3678 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061 3679 if (!strcmp(name, ctx->globals[i].name))
adamc@1061 3680 return ctx->globals[i].data;
adamc@1061 3681
adamc@1061 3682 return NULL;
adamc@1061 3683 }
adamc@1061 3684
adamc@1113 3685 size_t uw_globals_max = SIZE_MAX;
adamc@1113 3686
adamc@1061 3687 void uw_set_global(uw_context ctx, char *name, void *data, void (*free)(void*)) {
adamc@1061 3688 int i;
adamc@1061 3689
adamc@1061 3690 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061 3691 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089 3692 if (ctx->globals[i].free)
adamc@1061 3693 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061 3694 ctx->globals[i].data = data;
adamc@1061 3695 ctx->globals[i].free = free;
adamc@1061 3696 return;
adamc@1061 3697 }
adamc@1089 3698
adamc@1113 3699 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113 3700 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113 3701
adamc@1061 3702 ++ctx->n_globals;
adamc@1061 3703 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061 3704 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061 3705 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061 3706 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061 3707 }
adamc@1061 3708
adamc@1061 3709 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153 3710 return !!isalnum((int)c);
adamc@1061 3711 }
adamc@1061 3712
adamc@1061 3713 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153 3714 return !!isalpha((int)c);
adamc@1061 3715 }
adamc@1061 3716
adamc@1061 3717 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153 3718 return !!isblank((int)c);
adamc@1061 3719 }
adamc@1061 3720
adamc@1061 3721 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153 3722 return !!iscntrl((int)c);
adamc@1061 3723 }
adamc@1061 3724
adamc@1061 3725 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153 3726 return !!isdigit((int)c);
adamc@1061 3727 }
adamc@1061 3728
adamc@1061 3729 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153 3730 return !!isgraph((int)c);
adamc@1061 3731 }
adamc@1061 3732
adamc@1061 3733 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153 3734 return !!islower((int)c);
adamc@1061 3735 }
adamc@1061 3736
adamc@1061 3737 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153 3738 return !!isprint((int)c);
adamc@1061 3739 }
adamc@1061 3740
adamc@1061 3741 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153 3742 return !!ispunct((int)c);
adamc@1061 3743 }
adamc@1061 3744
adamc@1061 3745 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153 3746 return !!isspace((int)c);
adamc@1061 3747 }
adamc@1063 3748
adamc@1061 3749 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153 3750 return !!isupper((int)c);
adamc@1061 3751 }
adamc@1061 3752
adamc@1061 3753 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153 3754 return !!isxdigit((int)c);
adamc@1061 3755 }
adamc@1061 3756
adamc@1061 3757 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153 3758 return tolower((int)c);
adamc@1061 3759 }
adamc@1061 3760
adamc@1061 3761 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153 3762 return toupper((int)c);
adamc@1061 3763 }
adamc@1066 3764
adamc@1128 3765 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128 3766 return (unsigned char)c;
adamc@1128 3767 }
adamc@1128 3768
adamc@1128 3769 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128 3770 return n;
adamc@1128 3771 }
adamc@1128 3772
adamc@1066 3773 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066 3774 return ctx->current_url;
adamc@1066 3775 }
adamc@1066 3776
adamc@1066 3777 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066 3778 ctx->current_url = s;
adamc@1066 3779 }
adamc@1114 3780
adamc@1114 3781 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114 3782 ctx->deadline = n;
adamc@1114 3783 }
adamc@1114 3784
adamc@1114 3785 void uw_check_deadline(uw_context ctx) {
adamc@1114 3786 if (uw_time > ctx->deadline)
adamc@1114 3787 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114 3788 }
adamc@1115 3789
adamc@1115 3790 size_t uw_database_max = SIZE_MAX;
adamc@1120 3791
adam@1389 3792 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@1389 3793 fprintf(stderr, "%s\n", s);
adam@1389 3794 return 0;
adam@1389 3795 }
adam@1389 3796
adamc@1120 3797 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
adam@1334 3798 if (ctx->log_debug)
adam@1334 3799 ctx->log_debug(ctx->logger_data, "%s\n", s);
adam@1334 3800 else
adam@1334 3801 fprintf(stderr, "%s\n", s);
adamc@1120 3802 return uw_unit_v;
adamc@1120 3803 }
adamc@1250 3804
adamc@1250 3805 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@1486 3806 uw_Basis_int ret;
adam@1486 3807 int r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@1486 3808
adam@1486 3809 if (r)
adam@1486 3810 return abs(ret);
adam@1486 3811 else
adam@1486 3812 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250 3813 }
adam@1347 3814
adam@1347 3815 void uw_noPostBody(uw_context ctx) {
adam@1347 3816 ctx->hasPostBody = 0;
adam@1347 3817 }
adam@1347 3818
adam@1347 3819 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347 3820 ctx->hasPostBody = 1;
adam@1347 3821 ctx->postBody = pb;
adam@1347 3822 }
adam@1347 3823
adam@1347 3824 int uw_hasPostBody(uw_context ctx) {
adam@1347 3825 return ctx->hasPostBody;
adam@1347 3826 }
adam@1347 3827
adam@1386 3828 void uw_isPost(uw_context ctx) {
adam@1386 3829 ctx->isPost = 1;
adam@1386 3830 }
adam@1386 3831
adam@1386 3832 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386 3833 return ctx->isPost;
adam@1386 3834 }
adam@1386 3835
adam@1485 3836 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485 3837 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485 3838 }
adam@1485 3839
adam@1370 3840 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370 3841 ctx->queryString = s;
adam@1370 3842 }
adam@1370 3843
adam@1370 3844 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370 3845 return ctx->queryString;
adam@1370 3846 }
adam@1370 3847
adam@1347 3848 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347 3849 if (ctx->hasPostBody)
adam@1347 3850 return ctx->postBody;
adam@1347 3851 else
adam@1347 3852 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347 3853 }
adam@1349 3854
adam@1349 3855 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349 3856 int r = setjmp(ctx->jmp_buf);
adam@1349 3857
adam@1349 3858 if (r == 0) {
adam@1418 3859 if (ctx->app->db_begin(ctx))
adam@1418 3860 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1418 3861
adam@1349 3862 callback(ctx);
adam@1349 3863 }
adam@1349 3864
adam@1349 3865 return r;
adam@1349 3866 }
adam@1360 3867
adam@1360 3868 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397 3869 char buf[14];
adam@1397 3870 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360 3871 }
adam@1365 3872
adam@1365 3873 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365 3874 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365 3875 }
adam@1365 3876
adam@1365 3877 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365 3878 return !!(t1.seconds < t2.seconds || t1.microseconds < t2.microseconds);
adam@1365 3879 }
adam@1365 3880
adam@1365 3881 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365 3882 return !!(uw_Basis_eq_time(ctx, t1, t2) || uw_Basis_lt_time(ctx, t1, t2));
adam@1365 3883 }
adam@1365 3884
adam@1372 3885 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374 3886 struct tm stm = {};
adam@1375 3887 char *end = strchr(s, 0);
adam@1449 3888 stm.tm_isdst = -1;
adam@1375 3889
adam@1375 3890 if (strptime(s, TIME_FMT_PG, &stm) == end || strptime(s, TIME_FMT, &stm) == end) {
adam@1373 3891 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375 3892
kkallio@1448 3893 r->seconds = timegm(&stm);
adam@1373 3894 r->microseconds = 0;
adam@1373 3895
adam@1373 3896 return r;
adam@1374 3897 }
adam@1374 3898 else
adam@1373 3899 return NULL;
adam@1372 3900 }
adam@1407 3901
adam@1407 3902 static const char begin_xhtml[] = "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" lang=\"en\">";
adam@1407 3903
adam@1407 3904 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407 3905 int r = setjmp(ctx->jmp_buf);
adam@1407 3906
adam@1407 3907 if (ctx->app->on_error) {
adam@1407 3908 if (r == 0) {
adam@1407 3909 if (ctx->app->db_begin(ctx))
adam@1407 3910 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1407 3911
adam@1409 3912 uw_buffer_reset(&ctx->outHeaders);
adam@1409 3913 if (on_success[0])
adam@1409 3914 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409 3915 else
adam@1409 3916 uw_write_header(ctx, "Status: ");
adam@1409 3917 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1407 3918 uw_write_header(ctx, "Content-type: text/html\r\n\r\n");
adam@1407 3919 uw_write(ctx, begin_xhtml);
adam@1407 3920 ctx->app->on_error(ctx, msg);
adam@1407 3921 uw_write(ctx, "</html>");
adam@1407 3922 }
adam@1407 3923
adam@1407 3924 return r;
adam@1407 3925 } else
adam@1407 3926 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407 3927 }
adam@1451 3928
adam@1451 3929 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451 3930 ctx->allowed_to_return_indirectly = 1;
adam@1451 3931 }
adam@1483 3932
adam@1483 3933 void uw_cutErrorLocation(char *s) {
adam@1483 3934 char *s2;
adam@1483 3935
adam@1483 3936 s2 = strstr(s, ": ");
adam@1483 3937 if (s2 == NULL || strcspn(s, "<&") < s2 - s)
adam@1483 3938 return;
adam@1483 3939
adam@1483 3940 memmove(s, s2+2, strlen(s2+2)+1);
adam@1483 3941 }