annotate src/c/urweb.c @ 2307:6ae9a2784a45

Return to working version mode
author Adam Chlipala <adam@chlipala.net>
date Sun, 20 Dec 2015 14:39:50 -0500
parents 6fb9232ade99
children
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>
adam@1571 19 #include <math.h>
adamc@102 20
adamc@667 21 #include <pthread.h>
adamc@667 22
adamc@102 23 #include "types.h"
adamc@102 24
ziv@2234 25 #include "uthash.h"
ziv@2234 26
adam@1431 27 uw_unit uw_unit_v = 0;
adamc@102 28
adamc@667 29
adamc@667 30 // Socket extras
adamc@667 31
adamc@863 32 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667 33 while (len > 0) {
adamc@856 34 ssize_t n = send(sock, buf, len, 0);
adamc@856 35
adamc@856 36 if (n < 0)
adamc@856 37 return n;
adamc@856 38
adamc@856 39 buf += n;
adamc@856 40 len -= n;
adamc@856 41 }
adamc@856 42
adamc@856 43 return 0;
adamc@856 44 }
adamc@856 45
adamc@856 46 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856 47 while (len > 0) {
adamc@856 48 ssize_t n = write(fd, buf, len);
adamc@667 49
adamc@667 50 if (n < 0)
adamc@667 51 return n;
adamc@667 52
adamc@667 53 buf += n;
adamc@667 54 len -= n;
adamc@667 55 }
adamc@667 56
adamc@667 57 return 0;
adamc@667 58 }
adamc@667 59
adamc@667 60
adamc@667 61 // Buffers
adamc@667 62
adam@1369 63 void uw_buffer_init(size_t max, uw_buffer *b, size_t s) {
adamc@1113 64 b->max = max;
adamc@667 65 b->front = b->start = malloc(s);
adamc@667 66 b->back = b->front + s;
adamc@667 67 }
adamc@667 68
adam@1369 69 void uw_buffer_free(uw_buffer *b) {
adamc@667 70 free(b->start);
adamc@667 71 }
adamc@667 72
adam@1369 73 void uw_buffer_reset(uw_buffer *b) {
adamc@667 74 b->front = b->start;
ziv@2262 75 if (b->front != b->back) {
ziv@2262 76 *b->front = 0;
ziv@2262 77 }
adamc@667 78 }
adamc@667 79
adam@1369 80 int uw_buffer_check(uw_buffer *b, size_t extra) {
adamc@667 81 if (b->back - b->front < extra) {
adamc@667 82 size_t desired = b->front - b->start + extra, next;
adamc@667 83 char *new_heap;
adamc@667 84
adamc@667 85 next = b->back - b->start;
adamc@667 86 if (next == 0)
adamc@667 87 next = 1;
adamc@667 88 for (; next < desired; next *= 2);
adamc@667 89
adamc@1134 90 if (next > b->max) {
adamc@1113 91 if (desired <= b->max)
adamc@1113 92 next = desired;
adamc@1113 93 else
adamc@1113 94 return 1;
adamc@1134 95 }
adamc@1113 96
adamc@667 97 new_heap = realloc(b->start, next);
adamc@667 98 b->front = new_heap + (b->front - b->start);
adamc@667 99 b->back = new_heap + next;
adamc@667 100 b->start = new_heap;
adamc@667 101 }
adamc@1113 102
adamc@1113 103 return 0;
adamc@1113 104 }
adamc@1113 105
adamc@1113 106 __attribute__((noreturn)) void uw_error(uw_context, failure_kind, const char *, ...);
adamc@1113 107
adam@1369 108 static void ctx_uw_buffer_check(uw_context ctx, const char *kind, uw_buffer *b, size_t extra) {
adam@1369 109 if (uw_buffer_check(b, extra))
adamc@1113 110 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@667 111 }
adamc@667 112
adam@1369 113 size_t uw_buffer_used(uw_buffer *b) {
adamc@667 114 return b->front - b->start;
adamc@667 115 }
adamc@667 116
adam@1369 117 size_t uw_buffer_avail(uw_buffer *b) {
adamc@667 118 return b->back - b->start;
adamc@667 119 }
adamc@667 120
adam@1369 121 int uw_buffer_append(uw_buffer *b, const char *s, size_t len) {
adam@1369 122 if (uw_buffer_check(b, len+1))
adamc@1113 123 return 1;
adamc@1113 124
adamc@1113 125 memcpy(b->front, s, len);
adamc@1113 126 b->front += len;
adamc@1113 127 *b->front = 0;
adamc@1113 128
adamc@1113 129 return 0;
adamc@1113 130 }
adamc@1113 131
adam@1369 132 static void ctx_uw_buffer_append(uw_context ctx, const char *kind, uw_buffer *b, const char *s, size_t len) {
adam@1369 133 ctx_uw_buffer_check(ctx, kind, b, len+1);
adamc@1113 134
adamc@668 135 memcpy(b->front, s, len);
adamc@668 136 b->front += len;
adamc@672 137 *b->front = 0;
adamc@668 138 }
adamc@667 139
adamc@668 140
adamc@672 141 // Persistent state types
adamc@667 142
adamc@667 143 typedef enum { UNUSED, USED } usage;
adamc@667 144
adamc@667 145 typedef struct client {
adamc@682 146 unsigned id;
adamc@667 147 usage mode;
adamc@682 148 int pass;
adamc@682 149 struct client *next;
adamc@689 150 pthread_mutex_t lock, pull_lock;
adam@1369 151 uw_buffer msgs;
adamc@682 152 int sock;
adamc@863 153 int (*send)(int sockfd, const void *buf, ssize_t len);
adamc@863 154 int (*close)(int fd);
adamc@682 155 time_t last_contact;
adamc@682 156 unsigned n_channels;
adamc@685 157 unsigned refcount;
adamc@1121 158 void *data;
adamc@667 159 } client;
adamc@667 160
adamc@672 161
adamc@672 162 // Persistent client state
adamc@672 163
adamc@682 164 static client **clients, *clients_free, *clients_used;
adamc@682 165 static unsigned n_clients;
adamc@667 166
adam@1707 167 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@1113 168 size_t uw_messages_max = SIZE_MAX;
adamc@1113 169 size_t uw_clients_max = SIZE_MAX;
adamc@1113 170
adamc@1121 171 void *uw_init_client_data();
adamc@1121 172 void uw_free_client_data(void *);
adamc@1121 173 void uw_copy_client_data(void *dst, void *src);
adamc@1121 174
adam@2104 175 static uw_Basis_int my_rand() {
adam@2105 176 int ret, r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@2104 177 if (r)
adam@2105 178 return abs(ret);
adam@2104 179 else
adam@2104 180 return -1;
adam@2104 181 }
adam@2104 182
adamc@682 183 static client *new_client() {
adamc@667 184 client *c;
adamc@667 185
adamc@667 186 pthread_mutex_lock(&clients_mutex);
adamc@667 187
adamc@667 188 if (clients_free) {
adamc@667 189 c = clients_free;
adamc@682 190 clients_free = clients_free->next;
adamc@667 191 }
adam@1672 192 else if (n_clients >= uw_clients_max) {
adam@1672 193 pthread_mutex_unlock(&clients_mutex);
adamc@1113 194 return NULL;
adam@1672 195 } else {
adamc@667 196 ++n_clients;
adamc@667 197 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667 198 c = malloc(sizeof(client));
adamc@667 199 c->id = n_clients-1;
adamc@682 200 pthread_mutex_init(&c->lock, NULL);
adamc@689 201 pthread_mutex_init(&c->pull_lock, NULL);
adam@1369 202 uw_buffer_init(uw_messages_max, &c->msgs, 0);
adamc@667 203 clients[n_clients-1] = c;
adamc@667 204 }
adamc@667 205
adamc@682 206 pthread_mutex_lock(&c->lock);
adamc@667 207 c->mode = USED;
adam@2104 208 c->pass = my_rand();
adamc@682 209 c->sock = -1;
adamc@682 210 c->last_contact = time(NULL);
adam@1369 211 uw_buffer_reset(&c->msgs);
adamc@682 212 c->n_channels = 0;
adamc@685 213 c->refcount = 0;
adamc@1121 214 c->data = uw_init_client_data();
adamc@682 215 pthread_mutex_unlock(&c->lock);
adamc@682 216
adamc@682 217 c->next = clients_used;
adamc@682 218 clients_used = c;
adamc@667 219
adamc@667 220 pthread_mutex_unlock(&clients_mutex);
adamc@667 221
adamc@667 222 return c;
adamc@667 223 }
adamc@667 224
adamc@685 225 static void use_client(client *c) {
adamc@685 226 pthread_mutex_lock(&c->lock);
adamc@685 227 ++c->refcount;
adamc@685 228 pthread_mutex_unlock(&c->lock);
adamc@689 229 pthread_mutex_lock(&c->pull_lock);
adamc@685 230 }
adamc@685 231
adamc@685 232 static void release_client(client *c) {
adamc@689 233 pthread_mutex_unlock(&c->pull_lock);
adamc@685 234 pthread_mutex_lock(&c->lock);
adamc@685 235 --c->refcount;
adamc@685 236 pthread_mutex_unlock(&c->lock);
adamc@685 237 }
adamc@685 238
adamc@856 239 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adam@1707 240 static pthread_t pruning_thread;
adam@1707 241 static int pruning_thread_initialized = 0;
adamc@667 242
adamc@682 243 static client *find_client(unsigned id) {
adamc@667 244 client *c;
adam@1708 245 int i_am_pruner = pruning_thread_initialized && pthread_equal(pruning_thread, pthread_self());
adam@1708 246
adam@1708 247 if (!i_am_pruner) pthread_mutex_lock(&clients_mutex);
adamc@667 248
adamc@667 249 if (id >= n_clients) {
adam@1708 250 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668 251 return NULL;
adamc@667 252 }
adamc@667 253
adamc@667 254 c = clients[id];
adamc@667 255
adam@1708 256 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668 257 return c;
adamc@668 258 }
adamc@668 259
adamc@856 260 static char *on_success = "HTTP/1.1 200 OK\r\n";
adam@1409 261 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856 262
adamc@856 263 void uw_set_on_success(char *s) {
adamc@856 264 on_success = s;
adamc@856 265 }
adamc@856 266
adam@1552 267 static void chastise(int (*send)(int sockfd, const void *buf, ssize_t len), int sock) {
adam@1552 268 send(sock, on_success, strlen(on_success));
adam@1552 269 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1552 270 send(sock, "R", 1);
adam@1552 271 close(sock);
adam@1552 272 }
adam@1552 273
adamc@863 274 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863 275 int (*send)(int sockfd, const void *buf, ssize_t len),
adamc@864 276 int (*close)(int fd),
adamc@864 277 void *logger_data, uw_logger log_error) {
adamc@682 278 client *c = find_client(id);
adamc@668 279
adamc@668 280 if (c == NULL) {
adam@1552 281 chastise(send, sock);
adamc@864 282 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667 283 return;
adamc@667 284 }
adamc@667 285
adamc@682 286 pthread_mutex_lock(&c->lock);
adamc@671 287
adamc@682 288 if (c->mode != USED) {
adamc@682 289 pthread_mutex_unlock(&c->lock);
adam@1552 290 chastise(send, sock);
adamc@864 291 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667 292 return;
adamc@667 293 }
adamc@667 294
adamc@682 295 if (pass != c->pass) {
adamc@682 296 pthread_mutex_unlock(&c->lock);
adam@1552 297 chastise(send, sock);
adamc@864 298 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682 299 return;
adamc@667 300 }
adamc@667 301
adamc@682 302 if (c->sock != -1) {
adamc@863 303 c->close(c->sock);
adamc@682 304 c->sock = -1;
adamc@682 305 }
adamc@667 306
adamc@682 307 c->last_contact = time(NULL);
adamc@682 308
adam@1369 309 if (uw_buffer_used(&c->msgs) > 0) {
adamc@863 310 send(sock, on_success, strlen(on_success));
adamc@863 311 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1369 312 send(sock, c->msgs.start, uw_buffer_used(&c->msgs));
adam@1369 313 uw_buffer_reset(&c->msgs);
adamc@667 314 close(sock);
adamc@667 315 }
adamc@863 316 else {
adamc@682 317 c->sock = sock;
adamc@863 318 c->send = send;
adamc@863 319 c->close = close;
adamc@863 320 }
adamc@667 321
adamc@682 322 pthread_mutex_unlock(&c->lock);
adamc@667 323 }
adamc@667 324
adamc@682 325 static void free_client(client *c) {
adamc@682 326 c->mode = UNUSED;
adamc@682 327 c->pass = -1;
adamc@667 328
adamc@682 329 c->next = clients_free;
adamc@682 330 clients_free = c;
adamc@667 331 }
adamc@667 332
adamc@682 333 static uw_Basis_channel new_channel(client *c) {
adamc@682 334 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668 335 return ch;
adamc@668 336 }
adamc@668 337
adam@1447 338 static void client_send(client *c, uw_buffer *msg, const char *script, int script_len) {
adamc@685 339 pthread_mutex_lock(&c->lock);
adamc@671 340
adamc@682 341 if (c->sock != -1) {
adamc@863 342 c->send(c->sock, on_success, strlen(on_success));
adamc@863 343 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1447 344 if (script_len > 0) {
adam@1447 345 c->send(c->sock, "E\n", 2);
adam@1447 346 c->send(c->sock, script, script_len);
adam@1447 347 c->send(c->sock, "\n", 1);
adam@1447 348 }
adam@1369 349 c->send(c->sock, msg->start, uw_buffer_used(msg));
adamc@863 350 c->close(c->sock);
adamc@682 351 c->sock = -1;
adam@1665 352 } else if (uw_buffer_append(&c->msgs, msg->start, uw_buffer_used(msg)))
adamc@1113 353 fprintf(stderr, "Client message buffer size exceeded");
adamc@671 354
adamc@685 355 pthread_mutex_unlock(&c->lock);
adamc@668 356 }
adamc@668 357
adamc@668 358
adamc@668 359 // Global entry points
adamc@668 360
adamc@1164 361 extern void uw_global_custom();
adamc@1104 362 extern void uw_init_crypto();
adamc@1104 363
adamc@668 364 void uw_global_init() {
adamc@668 365 clients = malloc(0);
adamc@1104 366
adamc@1164 367 uw_global_custom();
adamc@1104 368 uw_init_crypto();
ziv@2288 369
ziv@2288 370 // Fast non-cryptographic strength randomness for Sqlcache.
ziv@2288 371 srandom(clock());
adamc@1094 372 }
adamc@1094 373
adamc@1094 374 void uw_app_init(uw_app *app) {
adamc@1094 375 app->client_init();
adamc@668 376 }
adamc@668 377
adam@1332 378 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114 379
adamc@668 380
adamc@667 381 // Single-request state
adamc@667 382
adamc@323 383 typedef struct regions {
adamc@323 384 struct regions *next;
adamc@323 385 } regions;
adamc@323 386
adamc@425 387 typedef struct {
adamc@425 388 void (*func)(void*);
adamc@425 389 void *arg;
adamc@425 390 } cleanup;
adamc@425 391
adamc@671 392 typedef struct {
adamc@682 393 unsigned client;
adam@1369 394 uw_buffer msgs;
adamc@682 395 } delta;
adamc@671 396
adamc@737 397 typedef enum {
adamc@759 398 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737 399 } input_kind;
adamc@737 400
adamc@756 401 typedef struct input {
adamc@737 402 input_kind kind;
adamc@737 403 union {
adamc@737 404 char *normal;
adamc@739 405 uw_Basis_file file;
adamc@756 406 struct {
adamc@759 407 struct input *fields, *parent;
adamc@756 408 } subform;
adamc@759 409 struct {
adamc@759 410 struct input *entries, *parent;
adamc@759 411 } subforms;
adamc@759 412 struct {
adamc@759 413 struct input *fields, *next, *parent;
adamc@759 414 } entry;
adamc@737 415 } data;
adamc@737 416 } input;
adamc@737 417
adamc@771 418 typedef struct {
adamc@771 419 void *data;
adam@1327 420 uw_callback commit, rollback;
adam@1327 421 uw_callback_with_retry free;
adamc@771 422 } transactional;
adamc@771 423
adamc@1061 424 typedef struct {
adamc@1061 425 char *name;
adamc@1061 426 void *data;
adamc@1061 427 void (*free)(void*);
adamc@1061 428 } global;
adamc@1061 429
ziv@2285 430 typedef struct uw_Sqlcache_Update {
ziv@2282 431 uw_Sqlcache_Cache *cache;
ziv@2282 432 char **keys;
ziv@2285 433 uw_Sqlcache_Value *value;
ziv@2285 434 struct uw_Sqlcache_Update *next;
ziv@2285 435 } uw_Sqlcache_Update;
ziv@2282 436
ziv@2288 437 typedef struct uw_Sqlcache_Unlock {
ziv@2288 438 pthread_rwlock_t *lock;
ziv@2288 439 struct uw_Sqlcache_Unlock *next;
ziv@2288 440 } uw_Sqlcache_Unlock;
ziv@2288 441
adamc@311 442 struct uw_context {
adamc@1094 443 uw_app *app;
adam@1446 444 int id;
adamc@1094 445
adamc@854 446 char *(*get_header)(void *, const char *);
adamc@854 447 void *get_header_data;
adamc@457 448
adam@1799 449 char *(*get_env)(void *, const char *);
adam@1799 450 void *get_env_data;
adam@1799 451
adam@1369 452 uw_buffer outHeaders, page, heap, script;
adam@1451 453 int allowed_to_return_indirectly, returning_indirectly;
adamc@759 454 input *inputs, *subinputs, *cur_container;
adamc@1094 455 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167 456
adam@1446 457 unsigned long long source_count;
adamc@562 458
adamc@272 459 void *db;
adam@1931 460 int transaction_started;
adamc@272 461
adamc@167 462 jmp_buf jmp_buf;
adamc@167 463
adamc@323 464 regions *regions;
adamc@323 465
adamc@425 466 cleanup *cleanup, *cleanup_front, *cleanup_back;
adamc@425 467
adamc@1094 468 const char *script_header;
adamc@643 469
adam@2056 470 int needs_push, needs_sig, could_write_db, at_most_one_query;
adamc@693 471
adamc@682 472 size_t n_deltas, used_deltas;
adamc@682 473 delta *deltas;
adamc@671 474
adamc@682 475 client *client;
adamc@682 476
adamc@771 477 transactional *transactionals;
adamc@771 478 size_t n_transactionals, used_transactionals;
adamc@771 479
adamc@1061 480 global *globals;
adamc@1061 481 size_t n_globals;
adamc@1061 482
adamc@1066 483 char *current_url;
adamc@1066 484
adamc@1114 485 int deadline;
adamc@1114 486
adamc@1121 487 void *client_data;
adamc@1121 488
grrwlf@1997 489 uw_loggers *loggers;
adam@1334 490
adam@1386 491 int isPost, hasPostBody;
adam@1347 492 uw_Basis_postBody postBody;
adam@1370 493 uw_Basis_string queryString;
adam@1347 494
adam@1556 495 unsigned nextId;
adam@1556 496
adam@1782 497 int amInitializing;
adam@1782 498
adamc@167 499 char error_message[ERROR_BUF_LEN];
adam@1877 500
adam@1877 501 int usedSig, needsResig;
adam@1949 502
adam@1949 503 char *output_buffer;
adam@1949 504 size_t output_buffer_size;
adam@2073 505
ziv@2281 506 // Sqlcache.
adam@2298 507 int numRecording, recordingCapacity;
adam@2298 508 int *recordingOffsets;
ziv@2285 509 uw_Sqlcache_Update *cacheUpdate;
ziv@2285 510 uw_Sqlcache_Update *cacheUpdateTail;
ziv@2288 511 uw_Sqlcache_Unlock *cacheUnlock;
ziv@2220 512
adam@2073 513 int remoteSock;
adamc@117 514 };
adamc@117 515
adamc@1113 516 size_t uw_headers_max = SIZE_MAX;
adamc@1113 517 size_t uw_page_max = SIZE_MAX;
adamc@1113 518 size_t uw_heap_max = SIZE_MAX;
adamc@1113 519 size_t uw_script_max = SIZE_MAX;
adamc@1113 520
grrwlf@1997 521 uw_context uw_init(int id, uw_loggers *lg) {
adamc@311 522 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136 523
adamc@1094 524 ctx->app = NULL;
adam@1446 525 ctx->id = id;
adamc@1094 526
adamc@854 527 ctx->get_header = NULL;
adamc@854 528 ctx->get_header_data = NULL;
adamc@457 529
adam@1799 530 ctx->get_env = NULL;
adam@1799 531 ctx->get_env_data = NULL;
adam@1799 532
adam@1413 533 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413 534 ctx->outHeaders.start[0] = 0;
adam@1413 535 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413 536 ctx->page.start[0] = 0;
adam@1451 537 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369 538 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369 539 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667 540 ctx->script.start[0] = 0;
adamc@136 541
adamc@1094 542 ctx->inputs = malloc(0);
adamc@759 543 ctx->cur_container = NULL;
adamc@756 544 ctx->subinputs = malloc(0);
adamc@1094 545 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144 546
adamc@272 547 ctx->db = NULL;
adam@1931 548 ctx->transaction_started = 0;
adamc@272 549
adamc@323 550 ctx->regions = NULL;
adamc@323 551
adamc@425 552 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425 553
adamc@643 554 ctx->script_header = "";
adamc@693 555 ctx->needs_push = 0;
adamc@736 556 ctx->needs_sig = 0;
adam@1936 557 ctx->could_write_db = 1;
adam@2056 558 ctx->at_most_one_query = 0;
adamc@1104 559
adamc@565 560 ctx->source_count = 0;
adamc@562 561
adamc@682 562 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671 563 ctx->deltas = malloc(0);
adamc@671 564
adamc@700 565 ctx->client = NULL;
adamc@700 566
adamc@700 567 ctx->error_message[0] = 0;
adamc@700 568
adamc@771 569 ctx->transactionals = malloc(0);
adamc@771 570 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771 571
adamc@1061 572 ctx->globals = malloc(0);
adamc@1061 573 ctx->n_globals = 0;
adamc@1061 574
adamc@1066 575 ctx->current_url = "";
adamc@1066 576
adamc@1114 577 ctx->deadline = INT_MAX;
adamc@1114 578
adamc@1121 579 ctx->client_data = uw_init_client_data();
adamc@1121 580
grrwlf@1997 581 ctx->loggers = lg;
adam@1334 582
adam@1386 583 ctx->isPost = ctx->hasPostBody = 0;
adam@1347 584
adam@1370 585 ctx->queryString = NULL;
adam@1370 586
adam@1556 587 ctx->nextId = 0;
adam@1556 588
adam@1782 589 ctx->amInitializing = 0;
adam@1782 590
adam@1877 591 ctx->usedSig = 0;
adam@1877 592 ctx->needsResig = 0;
adam@1877 593
adam@1949 594 ctx->output_buffer = malloc(1);
adam@1949 595 ctx->output_buffer_size = 1;
adam@1949 596
ziv@2262 597 ctx->numRecording = 0;
adam@2298 598 ctx->recordingCapacity = 0;
adam@2298 599 ctx->recordingOffsets = malloc(0);
ziv@2285 600 ctx->cacheUpdate = NULL;
ziv@2285 601 ctx->cacheUpdateTail = NULL;
ziv@2204 602
adam@2073 603 ctx->remoteSock = -1;
adam@2073 604
adam@2296 605 ctx->cacheUnlock = NULL;
adam@2296 606
adamc@117 607 return ctx;
adamc@106 608 }
adamc@106 609
adamc@1113 610 size_t uw_inputs_max = SIZE_MAX;
adamc@1113 611
adamc@1121 612 uw_app *uw_get_app(uw_context ctx) {
adamc@1121 613 return ctx->app;
adamc@1121 614 }
adamc@1121 615
adamc@1113 616 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094 617 ctx->app = app;
adamc@1094 618
adamc@1105 619 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113 620 if (app->inputs_len > uw_inputs_max)
adamc@1113 621 return 1;
adamc@1113 622
adamc@1094 623 ctx->sz_inputs = app->inputs_len;
adamc@1094 624 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094 625 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094 626 }
adamc@1134 627
adamc@1134 628 return 0;
adamc@1094 629 }
adamc@1094 630
adamc@1121 631 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121 632 uw_copy_client_data(ctx->client_data, data);
adamc@1121 633 }
adamc@1121 634
adamc@311 635 void uw_set_db(uw_context ctx, void *db) {
adamc@272 636 ctx->db = db;
adamc@272 637 }
adamc@272 638
adamc@311 639 void *uw_get_db(uw_context ctx) {
adamc@272 640 return ctx->db;
adamc@272 641 }
adamc@272 642
grrwlf@1997 643
grrwlf@1997 644 uw_loggers* uw_get_loggers(struct uw_context *ctx) {
grrwlf@1997 645 return ctx->loggers;
grrwlf@1997 646 }
grrwlf@1997 647
adamc@311 648 void uw_free(uw_context ctx) {
adamc@671 649 size_t i;
adamc@671 650
adam@1369 651 uw_buffer_free(&ctx->outHeaders);
adam@1369 652 uw_buffer_free(&ctx->script);
adam@1369 653 uw_buffer_free(&ctx->page);
adam@1369 654 uw_buffer_free(&ctx->heap);
adamc@144 655 free(ctx->inputs);
adamc@756 656 free(ctx->subinputs);
adamc@425 657 free(ctx->cleanup);
adamc@771 658 free(ctx->transactionals);
adamc@1121 659 uw_free_client_data(ctx->client_data);
adamc@671 660
adamc@682 661 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369 662 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330 663 free(ctx->deltas);
adamc@671 664
adamc@1061 665 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089 666 if (ctx->globals[i].free)
adamc@1089 667 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330 668 free(ctx->globals);
adamc@1061 669
adam@1949 670 free(ctx->output_buffer);
adam@1949 671
adam@2298 672 free(ctx->recordingOffsets);
adam@2298 673
adamc@136 674 free(ctx);
adamc@136 675 }
adamc@136 676
adamc@562 677 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369 678 uw_buffer_reset(&ctx->outHeaders);
adam@1369 679 uw_buffer_reset(&ctx->script);
adamc@667 680 ctx->script.start[0] = 0;
adam@1369 681 uw_buffer_reset(&ctx->page);
adam@1451 682 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369 683 uw_buffer_reset(&ctx->heap);
adamc@323 684 ctx->regions = NULL;
adamc@425 685 ctx->cleanup_front = ctx->cleanup;
adamc@682 686 ctx->used_deltas = 0;
adamc@682 687 ctx->client = NULL;
adamc@759 688 ctx->cur_container = NULL;
adamc@771 689 ctx->used_transactionals = 0;
adamc@1117 690 ctx->script_header = "";
adam@1370 691 ctx->queryString = NULL;
adam@1556 692 ctx->nextId = 0;
adam@1782 693 ctx->amInitializing = 0;
adam@1877 694 ctx->usedSig = 0;
adam@1877 695 ctx->needsResig = 0;
adam@2073 696 ctx->remoteSock = -1;
adam@2298 697 ctx->numRecording = 0;
adamc@167 698 }
adamc@167 699
adamc@562 700 void uw_reset_keep_request(uw_context ctx) {
adamc@562 701 uw_reset_keep_error_message(ctx);
adamc@562 702 ctx->error_message[0] = 0;
adamc@167 703 }
adamc@167 704
adamc@311 705 void uw_reset(uw_context ctx) {
adamc@311 706 uw_reset_keep_request(ctx);
adamc@1105 707 if (ctx->app)
adamc@1105 708 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756 709 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461 710 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adam@1943 711 ctx->transaction_started = 0;
adamc@144 712 }
adamc@144 713
adamc@311 714 failure_kind uw_begin_init(uw_context ctx) {
adamc@272 715 int r = setjmp(ctx->jmp_buf);
adamc@272 716
adamc@1105 717 if (r == 0 && ctx->app)
adamc@1094 718 ctx->app->db_init(ctx);
adamc@272 719
adamc@272 720 return r;
adamc@272 721 }
adamc@272 722
adamc@1118 723 void uw_close(uw_context ctx) {
adamc@1118 724 ctx->app->db_close(ctx);
adamc@1118 725 }
adamc@1118 726
adam@1446 727 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446 728 return ctx->get_header(ctx->get_header_data, h);
adam@1446 729 }
adam@1446 730
adamc@854 731 void uw_set_headers(uw_context ctx, char *(*get_header)(void *, const char *), void *get_header_data) {
adamc@854 732 ctx->get_header = get_header;
adamc@854 733 ctx->get_header_data = get_header_data;
adamc@742 734 }
adamc@742 735
adam@1799 736 void uw_set_env(uw_context ctx, char *(*get_env)(void *, const char *), void *get_env_data) {
adam@1799 737 ctx->get_env = get_env;
adam@1799 738 ctx->get_env_data = get_env_data;
adam@1799 739 }
adam@1799 740
adamc@801 741 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801 742 va_list ap;
adamc@801 743 va_start(ap, fmt);
adamc@801 744
adamc@801 745 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801 746 }
adamc@801 747
adamc@1131 748 int uw_has_error(uw_context ctx) {
adamc@1131 749 return ctx->error_message[0] != 0;
adamc@1131 750 }
adamc@1131 751
adamc@311 752 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425 753 cleanup *cl;
adamc@425 754
adamc@167 755 va_list ap;
adamc@167 756 va_start(ap, fmt);
adamc@167 757
adamc@167 758 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167 759
adamc@425 760 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425 761 cl->func(cl->arg);
adamc@425 762
adamc@425 763 ctx->cleanup_front = ctx->cleanup;
adamc@425 764
adamc@190 765 longjmp(ctx->jmp_buf, fk);
adamc@167 766 }
adamc@167 767
adamc@1113 768 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113 769
adamc@425 770 void uw_push_cleanup(uw_context ctx, void (*func)(void *), void *arg) {
adamc@425 771 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425 772 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425 773 if (len == 0)
adamc@425 774 newLen = 1;
adamc@425 775 else
adamc@428 776 newLen = len * 2;
adamc@1113 777
adamc@1134 778 if (newLen > uw_cleanup_max) {
adamc@1113 779 if (len+1 <= uw_cleanup_max)
adamc@1113 780 newLen = uw_cleanup_max;
adamc@1113 781 else
adamc@1113 782 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134 783 }
adamc@1113 784
adamc@470 785 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425 786 ctx->cleanup_front = ctx->cleanup + len;
adamc@425 787 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425 788 }
adamc@425 789
adamc@425 790 ctx->cleanup_front->func = func;
adamc@425 791 ctx->cleanup_front->arg = arg;
adamc@425 792 ++ctx->cleanup_front;
adamc@425 793 }
adamc@425 794
adam@1444 795 char *uw_Basis_htmlifyString(uw_context, const char *);
adam@1444 796
adamc@682 797 void uw_login(uw_context ctx) {
adam@1942 798 char *id_s, *pass_s;
adam@1942 799
adam@1942 800 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adam@1942 801 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adam@1942 802 unsigned id = atoi(id_s);
adam@1942 803 int pass = atoi(pass_s);
adam@1942 804 client *c = find_client(id);
adam@1942 805
adam@1942 806 if (c == NULL)
adam@1942 807 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", uw_Basis_htmlifyString(ctx, id_s), uw_Basis_htmlifyString(ctx, pass_s));
adam@1942 808 else {
adamc@685 809 use_client(c);
adamc@682 810 ctx->client = c;
adam@1942 811
adam@1942 812 if (c->mode != USED)
adam@1942 813 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adam@1942 814 if (c->pass != pass)
adam@1942 815 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@864 816 }
adam@1942 817 } else if (ctx->needs_push) {
adam@1942 818 client *c = new_client();
adam@1942 819
adam@1942 820 if (c == NULL)
adam@1942 821 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adam@1942 822
adam@1942 823 use_client(c);
adam@1942 824 uw_copy_client_data(c->data, ctx->client_data);
adam@1942 825 ctx->client = c;
adamc@682 826 }
adamc@682 827 }
adamc@682 828
adamc@671 829 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671 830 int r = setjmp(ctx->jmp_buf);
adamc@671 831
adam@1931 832 if (r == 0)
adam@1931 833 ctx->app->handle(ctx, path);
adam@1931 834
adam@1931 835 return r;
adam@1931 836 }
adam@1931 837
adam@2176 838 static void uw_try_reconnecting(uw_context ctx) {
adam@2176 839 // Hm, error starting transaction.
adam@2176 840 // Maybe the database server died but has since come back up.
adam@2176 841 // Let's try starting from scratch.
adam@2176 842 if (ctx->db) {
adam@2176 843 ctx->app->db_close(ctx);
adam@2176 844 ctx->db = NULL;
adam@2176 845 }
adam@2176 846 ctx->app->db_init(ctx);
adam@2176 847 }
adam@2176 848
adam@2177 849 void uw_try_reconnecting_and_restarting(uw_context ctx) {
adam@2177 850 uw_try_reconnecting(ctx);
adam@2178 851 uw_error(ctx, BOUNDED_RETRY, "Restarting transaction after fixing database connection");
adam@2176 852 }
adam@2176 853
adam@1931 854 void uw_ensure_transaction(uw_context ctx) {
adam@2056 855 if (!ctx->transaction_started && !ctx->at_most_one_query) {
adam@2176 856 if (!ctx->db || ctx->app->db_begin(ctx, ctx->could_write_db)) {
adam@2176 857 uw_try_reconnecting(ctx);
adam@2176 858
adam@2176 859 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adam@2176 860 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adam@2176 861 }
adam@2176 862
adam@1931 863 ctx->transaction_started = 1;
adam@2178 864 } else if (ctx->at_most_one_query && !ctx->db)
adam@2178 865 uw_try_reconnecting(ctx);
adamc@671 866 }
adamc@671 867
adamc@772 868 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682 869 if (ctx->client == NULL)
adamc@682 870 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682 871
adamc@682 872 return ctx->client->id;
adamc@682 873 }
adamc@682 874
adamc@425 875 void uw_pop_cleanup(uw_context ctx) {
adamc@425 876 if (ctx->cleanup_front == ctx->cleanup)
adamc@425 877 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425 878
adamc@425 879 --ctx->cleanup_front;
adamc@425 880 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425 881 }
adamc@425 882
adamc@311 883 char *uw_error_message(uw_context ctx) {
adamc@167 884 return ctx->error_message;
adamc@167 885 }
adamc@167 886
adamc@1115 887 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115 888 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115 889 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115 890 }
adamc@1115 891
adamc@759 892 static input *INP(uw_context ctx) {
adamc@759 893 if (ctx->cur_container == NULL)
adamc@759 894 return ctx->inputs;
adamc@759 895 else if (ctx->cur_container->kind == SUBFORM)
adamc@759 896 return ctx->cur_container->data.subform.fields;
adamc@759 897 else if (ctx->cur_container->kind == ENTRY)
adamc@759 898 return ctx->cur_container->data.entry.fields;
adamc@759 899 else
adamc@760 900 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759 901 }
adamc@759 902
adamc@760 903 static void adjust_pointer(input **ptr, input *old_start, input *new_start, size_t len) {
adamc@760 904 if (*ptr != NULL && *ptr >= old_start && *ptr < old_start + len)
adamc@760 905 *ptr += new_start - old_start;
adamc@760 906 }
adamc@760 907
adamc@760 908 static void adjust_input(input *x, input *old_start, input *new_start, size_t len) {
adamc@759 909 switch (x->kind) {
adamc@759 910 case SUBFORM:
adamc@760 911 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760 912 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759 913 break;
adamc@759 914 case SUBFORMS:
adamc@760 915 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760 916 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759 917 break;
adamc@759 918 case ENTRY:
adamc@760 919 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760 920 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760 921 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134 922 break;
adamc@1134 923 default:
adamc@1134 924 break;
phurst@1981 925 }
adamc@759 926 }
adamc@759 927
adamc@1113 928 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113 929
adamc@759 930 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759 931 size_t i;
adamc@759 932 input *r;
adamc@759 933
adamc@759 934 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113 935 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113 936 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113 937
adamc@759 938 input *new_subinputs = realloc(ctx->subinputs, sizeof(input) * (ctx->used_subinputs + len));
adamc@759 939
adamc@760 940 if (ctx->subinputs != new_subinputs) {
adamc@760 941 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760 942 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094 943 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760 944 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760 945
adamc@760 946 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760 947
adamc@760 948 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760 949 ctx->subinputs = new_subinputs;
adamc@760 950 }
adamc@759 951 }
adamc@759 952
adamc@759 953 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759 954
adamc@759 955 for (i = 0; i < len; ++i)
adam@1474 956 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759 957
adamc@759 958 return r;
adamc@759 959 }
adamc@756 960
adamc@801 961 int uw_set_input(uw_context ctx, const char *name, char *value) {
adamc@1050 962 //printf("Input name %s\n", name);
adamc@1038 963
adamc@756 964 if (!strcasecmp(name, ".b")) {
adamc@1094 965 int n = ctx->app->input_num(value);
adamc@756 966 input *inps;
adamc@756 967
adamc@801 968 if (n < 0) {
adam@1444 969 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801 970 return -1;
adamc@801 971 }
adamc@801 972
adamc@1094 973 if (n >= ctx->app->inputs_len) {
adam@1444 974 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801 975 return -1;
adamc@801 976 }
adamc@756 977
adamc@1094 978 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759 979
adamc@759 980 INP(ctx)[n].kind = SUBFORM;
adamc@759 981 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759 982 INP(ctx)[n].data.subform.fields = inps;
adamc@759 983 ctx->cur_container = &INP(ctx)[n];
adamc@756 984 } else if (!strcasecmp(name, ".e")) {
adamc@756 985 input *tmp;
adamc@756 986
adamc@801 987 if (ctx->cur_container == NULL) {
adamc@801 988 uw_set_error(ctx, "Unmatched subform closer");
adamc@801 989 return -1;
adamc@801 990 }
adamc@756 991
adamc@759 992 tmp = ctx->cur_container;
adamc@759 993 switch (tmp->kind) {
adamc@759 994 case SUBFORM:
adamc@759 995 ctx->cur_container = tmp->data.subform.parent;
adamc@759 996 tmp->data.subform.parent = NULL;
adamc@759 997 break;
adamc@759 998 case SUBFORMS:
adamc@759 999 ctx->cur_container = tmp->data.subforms.parent;
adamc@759 1000 tmp->data.subforms.parent = NULL;
adamc@759 1001 break;
adamc@759 1002 case ENTRY:
adamc@759 1003 ctx->cur_container = tmp->data.entry.parent;
adamc@759 1004 break;
adamc@759 1005 default:
adamc@801 1006 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801 1007 return -1;
adamc@759 1008 }
adamc@759 1009 } else if (!strcasecmp(name, ".s")) {
adamc@1094 1010 int n = ctx->app->input_num(value);
adamc@759 1011
adamc@801 1012 if (n < 0) {
adam@1444 1013 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801 1014 return -1;
adamc@801 1015 }
adamc@801 1016
adamc@1094 1017 if (n >= ctx->app->inputs_len) {
adam@1444 1018 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801 1019 return -1;
adamc@801 1020 }
adamc@759 1021
adamc@759 1022 INP(ctx)[n].kind = SUBFORMS;
adamc@759 1023 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759 1024 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759 1025 ctx->cur_container = &INP(ctx)[n];
adamc@759 1026 } else if (!strcasecmp(name, ".i")) {
adamc@759 1027 input *inps;
adamc@759 1028
adamc@801 1029 if (!ctx->cur_container) {
adamc@801 1030 uw_set_error(ctx, "New entry without container");
adamc@801 1031 return -1;
adamc@801 1032 }
adamc@801 1033
adamc@801 1034 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801 1035 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801 1036 return -1;
adamc@801 1037 }
adamc@759 1038
adamc@1094 1039 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759 1040
adamc@759 1041 inps->kind = ENTRY;
adamc@759 1042 inps->data.entry.parent = ctx->cur_container;
adamc@759 1043 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759 1044 ctx->cur_container->data.subforms.entries = inps;
adamc@759 1045
adamc@759 1046 inps->data.entry.fields = inps+1;
adamc@759 1047 ctx->cur_container = inps;
adamc@756 1048 } else {
adamc@1094 1049 int n = ctx->app->input_num(name);
adamc@756 1050
adam@1384 1051 if (n < 0)
adam@1384 1052 return 0;
adamc@801 1053
adamc@1094 1054 if (n >= ctx->app->inputs_len) {
adam@1444 1055 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801 1056 return -1;
adamc@801 1057 }
adamc@756 1058
adamc@756 1059 INP(ctx)[n].kind = NORMAL;
adamc@756 1060 INP(ctx)[n].data.normal = value;
adamc@756 1061 }
adamc@801 1062
adamc@801 1063 return 0;
adamc@144 1064 }
adamc@144 1065
adamc@311 1066 char *uw_get_input(uw_context ctx, int n) {
adamc@169 1067 if (n < 0)
adamc@311 1068 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094 1069 if (n >= ctx->app->inputs_len)
adamc@311 1070 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737 1071
adamc@756 1072 switch (INP(ctx)[n].kind) {
adamc@737 1073 case UNSET:
adamc@737 1074 return NULL;
adamc@739 1075 case FIL:
adamc@739 1076 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756 1077 case SUBFORM:
adamc@756 1078 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759 1079 case SUBFORMS:
adamc@759 1080 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759 1081 case ENTRY:
adamc@759 1082 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737 1083 case NORMAL:
adamc@756 1084 return INP(ctx)[n].data.normal;
adamc@737 1085 default:
adamc@737 1086 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 1087 }
adamc@138 1088 }
adamc@138 1089
adamc@311 1090 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190 1091 if (n < 0)
adamc@311 1092 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094 1093 if (n >= ctx->app->inputs_len)
adamc@311 1094 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737 1095
adamc@756 1096 switch (INP(ctx)[n].kind) {
adamc@737 1097 case UNSET:
adamc@737 1098 return "";
adamc@739 1099 case FIL:
adamc@739 1100 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756 1101 case SUBFORM:
adamc@756 1102 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759 1103 case SUBFORMS:
adamc@759 1104 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759 1105 case ENTRY:
adamc@759 1106 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737 1107 case NORMAL:
adamc@756 1108 return INP(ctx)[n].data.normal;
adamc@737 1109 default:
adamc@737 1110 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 1111 }
adamc@737 1112 }
adamc@737 1113
adamc@801 1114 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094 1115 int n = ctx->app->input_num(name);
adamc@737 1116
adamc@801 1117 if (n < 0) {
adam@2054 1118 uw_set_error(ctx, "Bad file input name");
adamc@801 1119 return -1;
adamc@801 1120 }
adamc@801 1121
adamc@1094 1122 if (n >= ctx->app->inputs_len) {
adam@2054 1123 uw_set_error(ctx, "For file input name, index %d is out of range", n);
adamc@801 1124 return -1;
adamc@801 1125 }
adamc@737 1126
adamc@739 1127 ctx->inputs[n].kind = FIL;
adamc@739 1128 ctx->inputs[n].data.file = f;
adamc@801 1129
adamc@801 1130 return 0;
adamc@737 1131 }
adamc@737 1132
adamc@739 1133 void *uw_malloc(uw_context ctx, size_t len);
adamc@739 1134
adamc@739 1135 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737 1136 if (n < 0)
adamc@737 1137 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094 1138 if (n >= ctx->app->inputs_len)
adamc@737 1139 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737 1140
adamc@756 1141 switch (INP(ctx)[n].kind) {
adamc@737 1142 case UNSET:
adamc@737 1143 {
adamc@739 1144 char *data = uw_malloc(ctx, 0);
adamc@740 1145 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739 1146 return f;
adamc@737 1147 }
adamc@739 1148 case FIL:
adamc@756 1149 return INP(ctx)[n].data.file;
adamc@737 1150 case NORMAL:
adamc@737 1151 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756 1152 case SUBFORM:
adamc@756 1153 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759 1154 case SUBFORMS:
adamc@759 1155 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759 1156 case ENTRY:
adamc@759 1157 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737 1158 default:
adamc@737 1159 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 1160 }
adamc@190 1161 }
adamc@190 1162
adamc@756 1163 void uw_enter_subform(uw_context ctx, int n) {
adamc@756 1164 if (n < 0)
adamc@756 1165 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094 1166 if (n >= ctx->app->inputs_len)
adamc@756 1167 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756 1168
adamc@756 1169 switch (INP(ctx)[n].kind) {
adamc@756 1170 case UNSET:
adamc@756 1171 uw_error(ctx, FATAL, "Missing subform");
adamc@756 1172 case FIL:
adamc@756 1173 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756 1174 case NORMAL:
adamc@756 1175 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759 1176 case SUBFORMS:
adamc@759 1177 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759 1178 case ENTRY:
adamc@759 1179 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756 1180 case SUBFORM:
adamc@759 1181 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760 1182 ctx->cur_container = &INP(ctx)[n];
adamc@756 1183 return;
adamc@756 1184 default:
adamc@756 1185 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756 1186 }
adamc@756 1187 }
adamc@756 1188
adamc@756 1189 void uw_leave_subform(uw_context ctx) {
adamc@756 1190 input *tmp;
adamc@756 1191
adamc@759 1192 if (ctx->cur_container == NULL)
adamc@756 1193 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756 1194
adamc@759 1195 tmp = ctx->cur_container;
adamc@759 1196 ctx->cur_container = tmp->data.subform.parent;
adamc@759 1197 tmp->data.subform.parent = NULL;
adamc@759 1198 }
adamc@759 1199
adamc@759 1200 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759 1201 input *inps;
adamc@759 1202
adamc@759 1203 if (n < 0)
adamc@759 1204 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094 1205 if (n >= ctx->app->inputs_len)
adamc@759 1206 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759 1207
adamc@759 1208 switch (INP(ctx)[n].kind) {
adamc@759 1209 case UNSET:
adamc@759 1210 uw_error(ctx, FATAL, "Missing subforms");
adamc@759 1211 case FIL:
adamc@759 1212 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759 1213 case NORMAL:
adamc@759 1214 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759 1215 case SUBFORM:
adamc@759 1216 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759 1217 case ENTRY:
adamc@759 1218 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759 1219 case SUBFORMS:
adamc@759 1220 inps = INP(ctx)[n].data.subforms.entries;
adamc@759 1221 if (inps) {
adamc@759 1222 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759 1223 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759 1224 return 1;
adamc@759 1225 } else
adamc@759 1226 return 0;
adamc@759 1227 default:
adamc@759 1228 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759 1229 }
adamc@759 1230 }
adamc@759 1231
adamc@759 1232 int uw_next_entry(uw_context ctx) {
adamc@759 1233 if (ctx->cur_container == NULL)
adamc@759 1234 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759 1235
adamc@759 1236 switch (ctx->cur_container->kind) {
adamc@759 1237 case UNSET:
adamc@759 1238 uw_error(ctx, FATAL, "Missing entry");
adamc@759 1239 case FIL:
adamc@759 1240 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759 1241 case NORMAL:
adamc@759 1242 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759 1243 case SUBFORM:
adamc@759 1244 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759 1245 case SUBFORMS:
adamc@759 1246 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759 1247 case ENTRY:
adamc@759 1248 if (ctx->cur_container->data.entry.next) {
adamc@759 1249 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759 1250 return 1;
adamc@759 1251 } else {
adamc@759 1252 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759 1253 return 0;
adamc@759 1254 }
adamc@759 1255 default:
adamc@759 1256 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759 1257 }
adamc@756 1258 }
adamc@756 1259
adamc@643 1260 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643 1261 ctx->script_header = s;
adamc@643 1262 }
adamc@643 1263
adamc@1094 1264 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094 1265 return ctx->app->url_prefix;
adamc@667 1266 }
adamc@667 1267
adamc@693 1268 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693 1269 ctx->needs_push = n;
adamc@693 1270 }
adamc@693 1271
adamc@736 1272 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736 1273 ctx->needs_sig = n;
adamc@736 1274 }
adamc@736 1275
adam@1936 1276 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936 1277 ctx->could_write_db = n;
adam@1936 1278 }
adam@1936 1279
adam@2056 1280 void uw_set_at_most_one_query(uw_context ctx, int n) {
adam@2056 1281 ctx->at_most_one_query = n;
adam@2056 1282 }
adam@2056 1283
adamc@667 1284
adam@1369 1285 static void uw_buffer_check_ctx(uw_context ctx, const char *kind, uw_buffer *b, size_t extra, const char *desc) {
adamc@666 1286 if (b->back - b->front < extra) {
adamc@666 1287 size_t desired = b->front - b->start + extra, next;
adamc@136 1288 char *new_heap;
adamc@136 1289
adamc@666 1290 next = b->back - b->start;
adamc@317 1291 if (next == 0)
adamc@317 1292 next = 1;
adamc@317 1293 for (; next < desired; next *= 2);
adamc@136 1294
adamc@1134 1295 if (next > b->max) {
adamc@1113 1296 if (desired <= b->max)
adamc@1113 1297 next = desired;
adamc@1113 1298 else
adamc@1113 1299 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134 1300 }
adamc@1113 1301
adamc@666 1302 new_heap = realloc(b->start, next);
adamc@666 1303 b->front = new_heap + (b->front - b->start);
adamc@666 1304 b->back = new_heap + next;
adamc@136 1305
adamc@667 1306 if (new_heap != b->start) {
adamc@666 1307 b->start = new_heap;
adam@1389 1308 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136 1309 }
adamc@136 1310
adamc@666 1311 b->start = new_heap;
adamc@136 1312 }
adamc@136 1313 }
adamc@136 1314
adamc@832 1315 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369 1316 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666 1317 }
adamc@666 1318
adamc@832 1319 char *uw_heap_front(uw_context ctx) {
adamc@832 1320 return ctx->heap.front;
adamc@832 1321 }
adamc@832 1322
adamc@832 1323 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832 1324 ctx->heap.front = fr;
adamc@832 1325 }
adamc@832 1326
adam@1782 1327 void uw_begin_initializing(uw_context ctx) {
adam@1782 1328 ctx->amInitializing = 1;
adam@1782 1329 }
adam@1782 1330
adam@1782 1331 void uw_end_initializing(uw_context ctx) {
adam@1782 1332 ctx->amInitializing = 0;
adam@1782 1333 }
adam@1782 1334
adam@2013 1335 static void align_heap(uw_context ctx) {
adam@2013 1336 size_t posn = ctx->heap.front - ctx->heap.start;
adam@2013 1337
adam@2017 1338 if (posn % sizeof(void *) != 0) {
adam@2017 1339 size_t bump = sizeof(void *) - posn % sizeof(void *);
adam@2013 1340 uw_check_heap(ctx, bump);
adam@2013 1341 ctx->heap.front += bump;
adam@2013 1342 }
adam@2013 1343 }
adam@2013 1344
adamc@311 1345 void *uw_malloc(uw_context ctx, size_t len) {
adam@2013 1346 // On some architectures, it's important that all word-sized memory accesses
adam@2013 1347 // be to word-aligned addresses, so we'll do a little bit of extra work here
adam@2013 1348 // in anticipation of a possible word-aligned access to the address we'll
adam@2013 1349 // return.
adam@2013 1350
adamc@136 1351 void *result;
adamc@136 1352
adam@1782 1353 if (ctx->amInitializing) {
adam@2017 1354 int error = posix_memalign(&result, sizeof(void *), len);
adam@2013 1355
adam@2013 1356 if (!error)
adam@1782 1357 return result;
adam@1782 1358 else
adam@2013 1359 uw_error(ctx, FATAL, "uw_malloc: posix_memalign() returns %d", error);
adam@1782 1360 } else {
adam@2013 1361 align_heap(ctx);
adam@2013 1362
adam@1782 1363 uw_check_heap(ctx, len);
adam@1782 1364
adam@1782 1365 result = ctx->heap.front;
adam@1782 1366 ctx->heap.front += len;
adam@1782 1367 return result;
adam@1782 1368 }
adamc@117 1369 }
adamc@117 1370
adamc@323 1371 void uw_begin_region(uw_context ctx) {
adam@2013 1372 align_heap(ctx);
adam@2013 1373
adamc@666 1374 regions *r = (regions *) ctx->heap.front;
adamc@323 1375
adamc@323 1376 uw_check_heap(ctx, sizeof(regions));
adamc@323 1377
adamc@666 1378 ctx->heap.front += sizeof(regions);
adamc@323 1379
adamc@323 1380 r->next = ctx->regions;
adamc@323 1381 ctx->regions = r;
adamc@323 1382 }
adamc@323 1383
adamc@323 1384 void uw_end_region(uw_context ctx) {
adamc@323 1385 regions *r = ctx->regions;
adamc@323 1386
adamc@323 1387 if (r == NULL)
adamc@323 1388 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323 1389
adamc@666 1390 ctx->heap.front = (char *) r;
adamc@323 1391 ctx->regions = r->next;
adamc@323 1392 }
adamc@323 1393
adamc@324 1394 void uw_memstats(uw_context ctx) {
adam@1369 1395 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369 1396 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369 1397 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369 1398 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324 1399 }
adamc@324 1400
adam@1915 1401 int uw_pagelen(uw_context ctx) {
adam@1915 1402 return ctx->page.front - ctx->page.start;
adam@1915 1403 }
adam@1915 1404
adamc@311 1405 int uw_send(uw_context ctx, int sock) {
adam@1949 1406 size_t target_length = (ctx->outHeaders.front - ctx->outHeaders.start) + 2 + (ctx->page.front - ctx->page.start);
adam@1949 1407
adam@1949 1408 if (ctx->output_buffer_size < target_length) {
adam@1949 1409 do {
adam@1949 1410 ctx->output_buffer_size *= 2;
adam@1949 1411 } while (ctx->output_buffer_size < target_length);
adam@1949 1412 ctx->output_buffer = realloc(ctx->output_buffer, ctx->output_buffer_size);
adam@1949 1413 }
adam@1949 1414
adam@1949 1415 memcpy(ctx->output_buffer, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adam@1949 1416 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start), "\r\n", 2);
adam@1949 1417 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start) + 2, ctx->page.start, ctx->page.front - ctx->page.start);
adam@1949 1418
adam@1949 1419 return uw_really_send(sock, ctx->output_buffer, target_length);
adamc@462 1420 }
adamc@462 1421
adamc@856 1422 int uw_print(uw_context ctx, int fd) {
adamc@856 1423 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856 1424
adamc@856 1425 if (n < 0)
adamc@856 1426 return n;
adamc@856 1427
adamc@856 1428 n = uw_really_write(fd, "\r\n", 2);
adamc@856 1429
adamc@856 1430 if (n < 0)
adamc@856 1431 return n;
adamc@856 1432
adamc@856 1433 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856 1434 }
adamc@856 1435
adamc@860 1436 int uw_output(uw_context ctx, int (*output)(void *data, char *buf, size_t len), void *data) {
adamc@860 1437 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860 1438
adamc@860 1439 if (n < 0)
adamc@860 1440 return n;
adamc@860 1441
adamc@860 1442 n = output(data, "\r\n", 2);
adamc@860 1443
adamc@860 1444 if (n < 0)
adamc@860 1445 return n;
adamc@860 1446
adamc@860 1447 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860 1448 }
adamc@860 1449
adamc@462 1450 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369 1451 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462 1452 }
adamc@462 1453
adamc@462 1454 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462 1455 int len = strlen(s);
adamc@462 1456
adamc@462 1457 uw_check_headers(ctx, len + 1);
adamc@666 1458 strcpy(ctx->outHeaders.front, s);
adamc@666 1459 ctx->outHeaders.front += len;
adamc@562 1460 }
adamc@562 1461
adam@1934 1462 int uw_has_contentLength(uw_context ctx) {
adam@1934 1463 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934 1464 }
adam@1934 1465
adamc@1110 1466 void uw_clear_headers(uw_context ctx) {
adam@1369 1467 uw_buffer_reset(&ctx->outHeaders);
adamc@1110 1468 }
adamc@1110 1469
adam@1932 1470 void uw_Basis_clear_page(uw_context ctx) {
adam@1932 1471 uw_buffer_reset(&ctx->page);
adam@1932 1472 }
adam@1932 1473
adamc@562 1474 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369 1475 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562 1476 }
adamc@562 1477
adamc@562 1478 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562 1479 int len = strlen(s);
adamc@562 1480
adamc@562 1481 uw_check_script(ctx, len + 1);
adamc@666 1482 strcpy(ctx->script.front, s);
adamc@666 1483 ctx->script.front += len;
adamc@562 1484 }
adamc@562 1485
adam@1446 1486 const char *uw_get_real_script(uw_context ctx) {
adam@1671 1487 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671 1488 uw_write_script(ctx, "sig=\"");
adam@1671 1489 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671 1490 uw_write_script(ctx, "\";");
adam@1671 1491 }
adam@1671 1492
adam@1446 1493 return ctx->script.start;
adam@1446 1494 }
adam@1446 1495
adamc@695 1496 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695 1497 if (s[0] == 0)
adamc@695 1498 return "";
adamc@695 1499 else {
adamc@695 1500 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695 1501 sprintf(r, " onload='%s'", s);
adamc@695 1502 return r;
adamc@695 1503 }
adamc@695 1504 }
adamc@695 1505
adamc@1042 1506 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042 1507 if (ctx->script_header[0] == 0)
adamc@1042 1508 return "";
adamc@1042 1509 else {
vshabanoff@1763 1510 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763 1511 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042 1512 return r;
adamc@1042 1513 }
adamc@1042 1514 }
adamc@1042 1515
adamc@694 1516 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736 1517 if (ctx->client == NULL) {
adamc@736 1518 if (ctx->needs_sig) {
adamc@1094 1519 char *sig = ctx->app->cookie_sig(ctx);
adamc@736 1520 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736 1521 sprintf(r, "sig=\"%s\";", sig);
adamc@736 1522 return r;
adamc@736 1523 }
adamc@736 1524 else
adamc@736 1525 return "";
adamc@736 1526 } else {
adamc@1094 1527 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094 1528 char *r = uw_malloc(ctx, 59 + 3 * INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736 1529 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552 1530 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552 1531 (ctx->isPost ? "true" : "false"),
adamc@682 1532 ctx->client->id,
adamc@682 1533 ctx->client->pass,
adamc@1094 1534 ctx->app->url_prefix,
adamc@1094 1535 ctx->app->timeout,
adamc@736 1536 ctx->needs_sig ? "sig=\"" : "",
adamc@736 1537 sig,
adamc@736 1538 ctx->needs_sig ? "\";" : "");
adamc@679 1539 return r;
adamc@668 1540 }
adamc@667 1541 }
adamc@667 1542
adamc@574 1543 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574 1544 char *r, *s2;
adamc@574 1545
adam@1446 1546 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574 1547
adamc@666 1548 r = s2 = ctx->heap.front;
adamc@574 1549 *s2++ = '"';
adamc@574 1550
adamc@574 1551 for (; *s; s++) {
adam@1286 1552 unsigned char c = *s;
adamc@574 1553
adamc@574 1554 switch (c) {
adamc@574 1555 case '"':
adamc@574 1556 strcpy(s2, "\\\"");
adamc@574 1557 s2 += 2;
adamc@574 1558 break;
adamc@1027 1559 case '\'':
adamc@1027 1560 strcpy(s2, "\\047");
adamc@1027 1561 s2 += 4;
adamc@1027 1562 break;
adamc@574 1563 case '\\':
adamc@574 1564 strcpy(s2, "\\\\");
adamc@574 1565 s2 += 2;
adamc@574 1566 break;
adam@1457 1567 case '<':
adam@1457 1568 strcpy(s2, "\\074");
adam@1457 1569 s2 += 4;
adam@1457 1570 break;
adamc@574 1571 default:
adam@1286 1572 if (isprint((int)c) || c >= 128)
adamc@574 1573 *s2++ = c;
adamc@574 1574 else {
adam@1429 1575 sprintf(s2, "\\%03o", c);
adamc@574 1576 s2 += 4;
adamc@574 1577 }
adamc@574 1578 }
adamc@574 1579 }
adamc@574 1580
adamc@574 1581 strcpy(s2, "\"");
adamc@910 1582 ctx->heap.front = s2 + 2;
adamc@574 1583 return r;
adamc@574 1584 }
adamc@574 1585
adam@1286 1586 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286 1587 unsigned char c = c1;
adamc@1025 1588 char *r, *s2;
adamc@1025 1589
adam@1446 1590 uw_check_heap(ctx, 7);
adamc@1025 1591
adamc@1025 1592 r = s2 = ctx->heap.front;
adamc@1025 1593 *s2++ = '"';
adamc@1025 1594
adamc@1025 1595 switch (c) {
adamc@1025 1596 case '"':
adamc@1025 1597 strcpy(s2, "\\\"");
adamc@1025 1598 s2 += 2;
adamc@1025 1599 break;
adamc@1027 1600 case '\'':
adamc@1027 1601 strcpy(s2, "\\047");
adamc@1027 1602 s2 += 4;
adamc@1027 1603 break;
adamc@1025 1604 case '\\':
adamc@1025 1605 strcpy(s2, "\\\\");
adamc@1025 1606 s2 += 2;
adamc@1025 1607 break;
adam@1457 1608 case '<':
adam@1457 1609 strcpy(s2, "\\074");
adam@1457 1610 s2 += 4;
adam@1457 1611 break;
adamc@1025 1612 default:
adam@1286 1613 if (isprint((int)c) || c >= 128)
adamc@1025 1614 *s2++ = c;
adamc@1025 1615 else {
adam@1429 1616 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025 1617 s2 += 4;
adamc@1025 1618 }
adamc@1025 1619 }
adamc@1025 1620
adamc@1025 1621 strcpy(s2, "\"");
adamc@1025 1622 ctx->heap.front = s2 + 2;
adamc@1025 1623 return r;
adamc@1025 1624 }
adamc@1025 1625
adamc@574 1626 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574 1627 char *r, *s2;
adamc@574 1628
adam@1446 1629 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574 1630
adamc@666 1631 r = s2 = ctx->script.front;
adamc@574 1632 *s2++ = '"';
adamc@574 1633
adamc@574 1634 for (; *s; s++) {
adam@1286 1635 unsigned char c = *s;
adamc@574 1636
adamc@574 1637 switch (c) {
adamc@577 1638 case '\'':
adamc@1027 1639 strcpy(s2, "\\");
adamc@574 1640 s2 += 2;
adamc@574 1641 break;
adamc@574 1642 case '\\':
adamc@574 1643 strcpy(s2, "\\\\");
adamc@574 1644 s2 += 2;
adamc@574 1645 break;
adam@1457 1646 case '<':
adam@1457 1647 strcpy(s2, "\\074");
adam@1457 1648 s2 += 4;
adam@1457 1649 break;
adamc@574 1650 default:
adam@1286 1651 if (isprint((int)c) || c >= 128)
adamc@574 1652 *s2++ = c;
adamc@574 1653 else {
adam@1429 1654 sprintf(s2, "\\%03o", c);
adamc@574 1655 s2 += 4;
adamc@574 1656 }
adamc@574 1657 }
adamc@574 1658 }
adamc@574 1659
adamc@574 1660 strcpy(s2, "\"");
adamc@666 1661 ctx->script.front = s2 + 1;
adamc@574 1662 return r;
adamc@574 1663 }
adamc@574 1664
adamc@682 1665 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1666 if (ctx->client == NULL || chn.cli != ctx->client->id)
adamc@682 1667 return "null";
adamc@682 1668 else {
adamc@682 1669 int len;
adamc@682 1670 char *r;
adamc@682 1671
adamc@682 1672 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1673 r = ctx->heap.front;
adamc@682 1674 sprintf(r, "%u%n", chn.chn, &len);
adamc@682 1675 ctx->heap.front += len+1;
adamc@682 1676 return r;
adamc@682 1677 }
adamc@682 1678 }
adamc@682 1679
adam@1446 1680 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577 1681 int len;
adamc@577 1682 size_t s_len = strlen(s);
adamc@562 1683
grrwlf@1998 1684 if(ctx->id < 0)
grrwlf@1998 1685 uw_error(ctx, FATAL, "Attempt to create client source using inappropriate context");
grrwlf@1998 1686
adam@1446 1687 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446 1688 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666 1689 ctx->script.front += len;
adamc@666 1690 strcpy(ctx->script.front, s);
adamc@666 1691 ctx->script.front += s_len;
adamc@970 1692 strcpy(ctx->script.front, "));");
adamc@972 1693 ctx->script.front += 3;
adamc@562 1694
adam@1446 1695 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446 1696 return r;
adam@1446 1697 }
adam@1446 1698
adam@1446 1699 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577 1700 int len;
adamc@577 1701 size_t s_len = strlen(s);
adamc@577 1702
adam@1446 1703 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446 1704 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666 1705 ctx->script.front += len;
adamc@666 1706 strcpy(ctx->script.front, s);
adamc@666 1707 ctx->script.front += s_len;
adamc@970 1708 strcpy(ctx->script.front, "));");
adamc@972 1709 ctx->script.front += 3;
adamc@577 1710
adamc@577 1711 return uw_unit_v;
adamc@577 1712 }
adamc@577 1713
adamc@311 1714 static void uw_check(uw_context ctx, size_t extra) {
adam@1369 1715 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117 1716 }
adamc@117 1717
adamc@311 1718 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666 1719 *(ctx->page.front)++ = c;
adam@1413 1720 *ctx->page.front = 0;
adamc@117 1721 }
adamc@117 1722
adamc@311 1723 void uw_writec(uw_context ctx, char c) {
adam@1413 1724 uw_check(ctx, 2);
adamc@311 1725 uw_writec_unsafe(ctx, c);
adamc@117 1726 }
adamc@117 1727
adam@2085 1728 void uw_Basis_writec(uw_context ctx, char c) {
adam@2085 1729 uw_writec(ctx, c);
adam@2085 1730 }
adam@2085 1731
adamc@311 1732 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117 1733 int len = strlen(s);
adamc@666 1734 memcpy(ctx->page.front, s, len);
adamc@666 1735 ctx->page.front += len;
adamc@117 1736 }
adamc@117 1737
adamc@311 1738 void uw_write(uw_context ctx, const char* s) {
adamc@311 1739 uw_check(ctx, strlen(s) + 1);
adamc@311 1740 uw_write_unsafe(ctx, s);
adamc@666 1741 *ctx->page.front = 0;
adamc@102 1742 }
adamc@106 1743
ziv@2204 1744 void uw_recordingStart(uw_context ctx) {
adam@2298 1745 if (ctx->numRecording == ctx->recordingCapacity) {
adam@2298 1746 ++ctx->recordingCapacity;
adam@2298 1747 ctx->recordingOffsets = realloc(ctx->recordingOffsets, sizeof(int) * ctx->recordingCapacity);
ziv@2262 1748 }
adam@2298 1749 ctx->recordingOffsets[ctx->numRecording] = ctx->page.front - ctx->page.start;
adam@2298 1750 ++ctx->numRecording;
ziv@2204 1751 }
ziv@2204 1752
ziv@2204 1753 char *uw_recordingRead(uw_context ctx) {
adam@2298 1754 char *recording = ctx->page.start + ctx->recordingOffsets[--ctx->numRecording];
ziv@2262 1755 return strdup(recording);
ziv@2204 1756 }
ziv@2204 1757
adamc@311 1758 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136 1759 char *result;
adamc@136 1760 int len;
adamc@311 1761 uw_check_heap(ctx, INTS_MAX);
adamc@666 1762 result = ctx->heap.front;
adamc@276 1763 sprintf(result, "%lld%n", n, &len);
adamc@666 1764 ctx->heap.front += len+1;
adamc@136 1765 return result;
adamc@106 1766 }
adamc@106 1767
adamc@311 1768 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136 1769 char *result;
adamc@136 1770 int len;
adamc@311 1771 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1772 result = ctx->heap.front;
adam@1920 1773 sprintf(result, "%.16g%n", n, &len);
adamc@666 1774 ctx->heap.front += len+1;
adamc@136 1775 return result;
adamc@106 1776 }
adamc@106 1777
adamc@311 1778 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136 1779 int len = strlen(s);
adamc@136 1780 char *result, *p;
adamc@311 1781 uw_check_heap(ctx, len * 6 + 1);
adamc@136 1782
adamc@666 1783 result = p = ctx->heap.front;
adamc@136 1784
adamc@136 1785 for (; *s; s++) {
adamc@1054 1786 unsigned char c = *s;
adamc@136 1787
adamc@136 1788 if (c == '"') {
adamc@136 1789 strcpy(p, "&quot;");
adamc@136 1790 p += 6;
adamc@136 1791 } else if (c == '&') {
adamc@136 1792 strcpy(p, "&amp;");
adamc@136 1793 p += 5;
adamc@136 1794 }
adamc@1059 1795 else
adamc@136 1796 *p++ = c;
adamc@136 1797 }
adamc@136 1798
adamc@137 1799 *p++ = 0;
adamc@666 1800 ctx->heap.front = p;
adamc@136 1801 return result;
adamc@106 1802 }
adamc@106 1803
adamc@1011 1804 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011 1805 char *result, *p;
adamc@1011 1806 uw_check_heap(ctx, 7);
adamc@1011 1807
adamc@1011 1808 result = p = ctx->heap.front;
adamc@1011 1809
adamc@1011 1810 if (c == '"') {
adamc@1011 1811 strcpy(p, "&quot;");
adamc@1011 1812 p += 6;
adamc@1011 1813 } else if (c == '&') {
adamc@1011 1814 strcpy(p, "&amp;");
adamc@1011 1815 p += 5;
adamc@1011 1816 }
adamc@1059 1817 else
adamc@1011 1818 *p++ = c;
adamc@1011 1819
adamc@1011 1820 *p++ = 0;
adamc@1011 1821 ctx->heap.front = p;
adamc@1011 1822 return result;
adamc@1011 1823 }
adamc@1011 1824
adamc@721 1825 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721 1826 return s;
adamc@721 1827 }
adamc@721 1828
adamc@311 1829 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117 1830 int len;
adamc@117 1831
adamc@666 1832 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1833 ctx->page.front += len;
adamc@106 1834 }
adamc@106 1835
adamc@428 1836 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311 1837 uw_check(ctx, INTS_MAX);
adamc@311 1838 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428 1839
adamc@428 1840 return uw_unit_v;
adamc@106 1841 }
adamc@106 1842
adamc@428 1843 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117 1844 int len;
adamc@117 1845
adamc@311 1846 uw_check(ctx, FLOATS_MAX);
adamc@666 1847 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1848 ctx->page.front += len;
adamc@428 1849
adamc@428 1850 return uw_unit_v;
adamc@117 1851 }
adamc@117 1852
adamc@428 1853 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311 1854 uw_check(ctx, strlen(s) * 6);
adamc@117 1855
adamc@106 1856 for (; *s; s++) {
adamc@1054 1857 unsigned char c = *s;
adamc@106 1858
adamc@106 1859 if (c == '"')
adamc@311 1860 uw_write_unsafe(ctx, "&quot;");
adamc@136 1861 else if (c == '&')
adamc@311 1862 uw_write_unsafe(ctx, "&amp;");
adamc@1059 1863 else
adamc@311 1864 uw_writec_unsafe(ctx, c);
adamc@106 1865 }
adamc@428 1866
adamc@428 1867 return uw_unit_v;
adamc@106 1868 }
adamc@120 1869
adamc@1011 1870 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011 1871 uw_check(ctx, 6);
adamc@1011 1872
adamc@1011 1873 if (c == '"')
adamc@1011 1874 uw_write_unsafe(ctx, "&quot;");
adamc@1011 1875 else if (c == '&')
adamc@1011 1876 uw_write_unsafe(ctx, "&amp;");
adamc@1059 1877 else
adamc@1011 1878 uw_writec_unsafe(ctx, c);
adamc@1011 1879
adamc@1011 1880 return uw_unit_v;
adamc@1011 1881 }
adamc@1011 1882
adamc@120 1883
adamc@311 1884 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137 1885 int len;
adamc@137 1886 char *r;
adamc@137 1887
adamc@311 1888 uw_check_heap(ctx, INTS_MAX);
adamc@666 1889 r = ctx->heap.front;
adamc@276 1890 sprintf(r, "%lld%n", n, &len);
adamc@666 1891 ctx->heap.front += len+1;
adamc@137 1892 return r;
adamc@120 1893 }
adamc@120 1894
adamc@682 1895 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1896 if (ctx->client == NULL || chn.cli != ctx->client->id)
adamc@682 1897 return "";
adamc@682 1898 else {
adamc@682 1899 int len;
adamc@682 1900 char *r;
adamc@679 1901
adamc@682 1902 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1903 r = ctx->heap.front;
adamc@682 1904 sprintf(r, "%u%n", chn.chn, &len);
adamc@682 1905 ctx->heap.front += len+1;
adamc@682 1906 return r;
adamc@682 1907 }
adamc@679 1908 }
adamc@679 1909
adamc@311 1910 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137 1911 int len;
adamc@137 1912 char *r;
adamc@137 1913
adamc@311 1914 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1915 r = ctx->heap.front;
adamc@137 1916 sprintf(r, "%g%n", n, &len);
adamc@666 1917 ctx->heap.front += len+1;
adamc@137 1918 return r;
adamc@120 1919 }
adamc@120 1920
adamc@311 1921 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137 1922 char *r, *p;
adamc@137 1923
adamc@925 1924 if (s[0] == '\0')
adamc@925 1925 return "_";
adamc@925 1926
adamc@925 1927 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925 1928
adamc@925 1929 r = p = ctx->heap.front;
adamc@925 1930 if (s[0] == '_')
adamc@925 1931 *p++ = '_';
adamc@925 1932
adamc@925 1933 for (; *s; s++) {
adamc@1087 1934 unsigned char c = *s;
adamc@137 1935
adamc@137 1936 if (c == ' ')
adamc@137 1937 *p++ = '+';
adamc@137 1938 else if (isalnum(c))
adamc@137 1939 *p++ = c;
adamc@137 1940 else {
adamc@1259 1941 sprintf(p, ".%02X", c);
adamc@137 1942 p += 3;
adamc@137 1943 }
adamc@137 1944 }
adamc@137 1945
adamc@137 1946 *p++ = 0;
adamc@666 1947 ctx->heap.front = p;
adamc@137 1948 return r;
adamc@120 1949 }
adamc@120 1950
adamc@311 1951 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 1952 if (b == uw_Basis_False)
adamc@186 1953 return "0";
adamc@186 1954 else
adamc@186 1955 return "1";
adamc@186 1956 }
adamc@186 1957
adam@1620 1958 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620 1959 char *r;
adam@1620 1960 int len;
adam@1620 1961 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620 1962 r = ctx->heap.front;
adam@1620 1963 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620 1964 ctx->heap.front += len+1;
adam@1620 1965 return r;
adam@1620 1966 }
adam@1620 1967
adamc@311 1968 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120 1969 int len;
adamc@120 1970
adamc@666 1971 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1972 ctx->page.front += len;
adamc@120 1973 }
adamc@120 1974
adamc@428 1975 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311 1976 uw_check(ctx, INTS_MAX);
adamc@311 1977 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428 1978
adamc@428 1979 return uw_unit_v;
adamc@120 1980 }
adamc@120 1981
adamc@682 1982 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1983 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682 1984 int len;
phurst@1981 1985
adamc@682 1986 uw_check(ctx, INTS_MAX + 1);
adamc@682 1987 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682 1988 ctx->page.front += len;
adamc@682 1989 }
phurst@1981 1990
adamc@679 1991 return uw_unit_v;
adamc@679 1992 }
adamc@679 1993
adamc@428 1994 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120 1995 int len;
adamc@120 1996
adamc@311 1997 uw_check(ctx, FLOATS_MAX);
adamc@666 1998 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1999 ctx->page.front += len;
adamc@428 2000
adamc@428 2001 return uw_unit_v;
adamc@120 2002 }
adamc@120 2003
adamc@488 2004 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376 2005 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488 2006 }
adamc@488 2007
adam@1404 2008 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404 2009 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404 2010 }
adam@1404 2011
adamc@428 2012 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925 2013 if (s[0] == '\0') {
adamc@925 2014 uw_check(ctx, 1);
adamc@925 2015 uw_writec_unsafe(ctx, '_');
adamc@925 2016 return uw_unit_v;
adamc@925 2017 }
adamc@925 2018
adamc@925 2019 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925 2020
adamc@925 2021 if (s[0] == '_')
adamc@925 2022 uw_writec_unsafe(ctx, '_');
adamc@120 2023
adamc@120 2024 for (; *s; s++) {
adamc@1087 2025 unsigned char c = *s;
adamc@120 2026
adamc@120 2027 if (c == ' ')
adamc@311 2028 uw_writec_unsafe(ctx, '+');
adamc@120 2029 else if (isalnum(c))
adamc@311 2030 uw_writec_unsafe(ctx, c);
adamc@120 2031 else {
adamc@1259 2032 sprintf(ctx->page.front, ".%02X", c);
adamc@666 2033 ctx->page.front += 3;
adamc@120 2034 }
adamc@120 2035 }
adamc@428 2036
adamc@428 2037 return uw_unit_v;
adamc@120 2038 }
adamc@120 2039
adamc@428 2040 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311 2041 if (b == uw_Basis_False)
adamc@311 2042 uw_writec(ctx, '0');
adamc@186 2043 else
adamc@311 2044 uw_writec(ctx, '1');
adamc@428 2045
adamc@428 2046 return uw_unit_v;
adamc@186 2047 }
adamc@186 2048
adam@1620 2049 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620 2050 int len;
phurst@1981 2051
adam@1620 2052 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620 2053 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620 2054 ctx->page.front += len;
phurst@1981 2055
adam@1620 2056 return uw_unit_v;
adam@1620 2057 }
adam@1620 2058
adamc@120 2059
adamc@311 2060 static char *uw_unurlify_advance(char *s) {
adamc@144 2061 char *new_s = strchr(s, '/');
adamc@120 2062
adamc@120 2063 if (new_s)
adamc@120 2064 *new_s++ = 0;
adamc@120 2065 else
adamc@144 2066 new_s = strchr(s, 0);
adamc@144 2067
adamc@144 2068 return new_s;
adamc@144 2069 }
adamc@144 2070
adamc@311 2071 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311 2072 char *new_s = uw_unurlify_advance(*s);
adamc@311 2073 uw_Basis_int r;
adamc@120 2074
adamc@276 2075 r = atoll(*s);
adamc@120 2076 *s = new_s;
adamc@120 2077 return r;
adamc@120 2078 }
adamc@120 2079
adamc@311 2080 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311 2081 char *new_s = uw_unurlify_advance(*s);
adamc@311 2082 uw_Basis_float r;
adamc@120 2083
adamc@120 2084 r = atof(*s);
adamc@120 2085 *s = new_s;
adamc@120 2086 return r;
adamc@120 2087 }
adamc@120 2088
adamc@488 2089 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365 2090 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365 2091 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365 2092 return r;
adamc@488 2093 }
adamc@488 2094
adamc@1023 2095 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char *r, char *s) {
adamc@927 2096 char *s1, *s2 = s;
adamc@144 2097 int n;
adamc@136 2098
adamc@1023 2099 if (!fromClient) {
adamc@1023 2100 if (*s2 == '_')
adamc@1023 2101 ++s2;
adamc@1259 2102 else if ((s2[0] == '%' || s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' || s2[2] == 'F'))
adamc@1023 2103 s2 += 3;
adamc@1023 2104 }
adamc@925 2105
adamc@927 2106 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087 2107 unsigned char c = *s2;
adamc@136 2108
adamc@136 2109 switch (c) {
adamc@136 2110 case '+':
adamc@136 2111 *s1 = ' ';
adamc@136 2112 break;
adamc@136 2113 case '%':
adamc@169 2114 if (s2[1] == 0)
adamc@311 2115 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169 2116 if (s2[2] == 0)
adamc@311 2117 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169 2118 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444 2119 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136 2120 *s1 = n;
adamc@136 2121 s2 += 2;
adamc@136 2122 break;
adamc@1259 2123 case '.':
adamc@1259 2124 if (!fromClient) {
adamc@1259 2125 if (s2[1] == 0)
adamc@1259 2126 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259 2127 if (s2[2] == 0)
adamc@1259 2128 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259 2129 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444 2130 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259 2131 *s1 = n;
adamc@1259 2132 s2 += 2;
adamc@1259 2133 break;
adamc@1259 2134 }
adamc@136 2135 default:
adamc@136 2136 *s1 = c;
adamc@136 2137 }
adamc@136 2138 }
adamc@136 2139 *s1++ = 0;
adamc@144 2140 return s1;
adamc@144 2141 }
adamc@144 2142
adamc@311 2143 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311 2144 char *new_s = uw_unurlify_advance(*s);
adamc@311 2145 uw_Basis_bool r;
phurst@1981 2146
adamc@186 2147 if (*s[0] == 0 || !strcmp(*s, "0") || !strcmp(*s, "off"))
adamc@311 2148 r = uw_Basis_False;
adamc@186 2149 else
adamc@311 2150 r = uw_Basis_True;
adamc@186 2151
adamc@186 2152 *s = new_s;
adamc@186 2153 return r;
adamc@186 2154 }
adamc@186 2155
adamc@311 2156 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311 2157 char *new_s = uw_unurlify_advance(*s);
adamc@1134 2158 char *r;
adamc@1134 2159 int len;
adamc@144 2160
adamc@200 2161 len = strlen(*s);
adamc@311 2162 uw_check_heap(ctx, len + 1);
adamc@144 2163
adamc@666 2164 r = ctx->heap.front;
adamc@1023 2165 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023 2166 *s = new_s;
adamc@1023 2167 return r;
adamc@1023 2168 }
adamc@1023 2169
adamc@1109 2170 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109 2171 *s = uw_unurlify_advance(*s);
adamc@1109 2172 return uw_unit_v;
adamc@1109 2173 }
adamc@1109 2174
adamc@1023 2175 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023 2176 char *new_s = uw_unurlify_advance(*s);
adamc@1134 2177 char *r;
adamc@1134 2178 int len;
adamc@1023 2179
adamc@1023 2180 len = strlen(*s);
adamc@1023 2181 uw_check_heap(ctx, len + 1);
adamc@1023 2182
adamc@1023 2183 r = ctx->heap.front;
adamc@1023 2184 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136 2185 *s = new_s;
adamc@136 2186 return r;
adamc@120 2187 }
adamc@135 2188
adamc@135 2189
adamc@311 2190 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286 2191 int len;
adamc@286 2192 char *r;
adamc@286 2193
adamc@311 2194 uw_check_heap(ctx, INTS_MAX);
adamc@666 2195 r = ctx->heap.front;
adamc@286 2196 sprintf(r, "%lld%n", n, &len);
adamc@666 2197 ctx->heap.front += len+1;
adamc@286 2198 return r;
adamc@286 2199 }
adamc@286 2200
adamc@428 2201 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286 2202 int len;
adamc@286 2203
adamc@311 2204 uw_check(ctx, INTS_MAX);
adamc@666 2205 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 2206 ctx->page.front += len;
phurst@1981 2207
adamc@428 2208 return uw_unit_v;
adamc@286 2209 }
adamc@286 2210
adam@1358 2211 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358 2212 unsigned int n = ch;
adam@1358 2213 int len;
adam@1358 2214 char *r;
adam@1358 2215
adam@1358 2216 uw_check_heap(ctx, INTS_MAX+3);
adam@1358 2217 r = ctx->heap.front;
adam@1358 2218 sprintf(r, "&#%u;%n", n, &len);
adam@1358 2219 ctx->heap.front += len+1;
adam@1358 2220 return r;
adam@1358 2221 }
adam@1358 2222
adam@1358 2223 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358 2224 unsigned int n = ch;
adam@1358 2225 int len;
adam@1358 2226
adam@1358 2227 uw_check(ctx, INTS_MAX+3);
adam@1358 2228 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358 2229 ctx->page.front += len;
adam@1358 2230 return uw_unit_v;
adam@1358 2231 }
adam@1358 2232
adamc@311 2233 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286 2234 int len;
adamc@286 2235 char *r;
adamc@286 2236
adamc@311 2237 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 2238 r = ctx->heap.front;
adamc@286 2239 sprintf(r, "%g%n", n, &len);
adamc@666 2240 ctx->heap.front += len+1;
adamc@286 2241 return r;
adamc@286 2242 }
adamc@286 2243
adamc@428 2244 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286 2245 int len;
adamc@286 2246
adamc@311 2247 uw_check(ctx, FLOATS_MAX);
adamc@666 2248 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 2249 ctx->page.front += len;
adamc@428 2250
adamc@428 2251 return uw_unit_v;
adamc@286 2252 }
adamc@286 2253
adam@1365 2254 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360 2255 int len;
adam@1360 2256 char *r;
adam@1360 2257
adam@1360 2258 uw_check_heap(ctx, INTS_MAX);
adam@1360 2259 r = ctx->heap.front;
adamc@1377 2260 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360 2261 ctx->heap.front += len+1;
adam@1360 2262 return r;
adam@1360 2263 }
adam@1360 2264
adam@1365 2265 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360 2266 int len;
adam@1360 2267
adam@1360 2268 uw_check(ctx, INTS_MAX);
adam@1360 2269 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360 2270 ctx->page.front += len;
phurst@1981 2271
adam@1360 2272 return uw_unit_v;
adam@1360 2273 }
adam@1360 2274
adam@1444 2275 char *uw_Basis_htmlifyString(uw_context ctx, const char *s) {
adamc@137 2276 char *r, *s2;
adamc@137 2277
adamc@311 2278 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137 2279
adamc@666 2280 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054 2281 unsigned char c = *s;
adamc@137 2282
adamc@137 2283 switch (c) {
adamc@137 2284 case '<':
adamc@137 2285 strcpy(s2, "&lt;");
adamc@137 2286 s2 += 4;
adamc@137 2287 break;
adamc@137 2288 case '&':
adamc@137 2289 strcpy(s2, "&amp;");
adamc@137 2290 s2 += 5;
adamc@137 2291 break;
adamc@137 2292 default:
adamc@1059 2293 *s2++ = c;
adamc@137 2294 }
adamc@137 2295 }
adamc@137 2296
adamc@137 2297 *s2++ = 0;
adamc@666 2298 ctx->heap.front = s2;
adamc@137 2299 return r;
adamc@135 2300 }
adamc@135 2301
adamc@428 2302 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321 2303 uw_check(ctx, strlen(s) * 6);
adamc@135 2304
adamc@135 2305 for (; *s; s++) {
adamc@1054 2306 unsigned char c = *s;
adamc@135 2307
adamc@135 2308 switch (c) {
adamc@135 2309 case '<':
adamc@311 2310 uw_write_unsafe(ctx, "&lt;");
adamc@135 2311 break;
adamc@135 2312 case '&':
adamc@311 2313 uw_write_unsafe(ctx, "&amp;");
adamc@135 2314 break;
adamc@135 2315 default:
adamc@1059 2316 uw_writec_unsafe(ctx, c);
adamc@135 2317 }
adamc@135 2318 }
adamc@428 2319
adamc@428 2320 return uw_unit_v;
adamc@135 2321 }
adamc@180 2322
adamc@311 2323 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 2324 if (b == uw_Basis_False)
adamc@286 2325 return "False";
adamc@286 2326 else
adamc@286 2327 return "True";
adamc@286 2328 }
adamc@286 2329
adamc@428 2330 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311 2331 if (b == uw_Basis_False) {
adamc@311 2332 uw_check(ctx, 6);
adamc@666 2333 strcpy(ctx->page.front, "False");
adamc@666 2334 ctx->page.front += 5;
adamc@286 2335 } else {
adamc@311 2336 uw_check(ctx, 5);
adamc@666 2337 strcpy(ctx->page.front, "True");
adamc@666 2338 ctx->page.front += 4;
adamc@286 2339 }
adamc@428 2340
adamc@428 2341 return uw_unit_v;
adamc@286 2342 }
adamc@286 2343
adamc@436 2344 #define TIME_FMT "%x %X"
adamc@438 2345 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632 2346 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436 2347
adam@1629 2348 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629 2349
adamc@436 2350 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629 2351 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436 2352 }
adamc@436 2353
adamc@436 2354 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629 2355 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436 2356 }
adamc@436 2357
adam@1446 2358 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446 2359 int len;
adam@1446 2360 char *r;
adam@1446 2361
adam@1446 2362 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446 2363 r = ctx->heap.front;
adam@1446 2364 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446 2365 ctx->heap.front += len+1;
adam@1446 2366 return r;
adam@1446 2367 }
adam@1446 2368
adam@1446 2369 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446 2370 int len;
adam@1446 2371
adam@1446 2372 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446 2373 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446 2374 ctx->page.front += len;
phurst@1981 2375
adam@1446 2376 return uw_unit_v;
adam@1446 2377 }
adam@1446 2378
adamc@821 2379 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388 2380 while (n >= 0) {
adam@1388 2381 if (*s == 0)
adam@1388 2382 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388 2383
adam@1388 2384 if (n == 0)
adam@1388 2385 return *s;
adam@1388 2386
adam@1388 2387 --n;
adam@1388 2388 ++s;
adam@1388 2389 }
adam@1388 2390
adam@1388 2391 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821 2392 }
adamc@821 2393
adamc@821 2394 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388 2395 while (n >= 0) {
adam@1388 2396 if (*s == 0 || n == 0)
adam@1388 2397 return s;
adam@1388 2398
adam@1388 2399 --n;
adam@1388 2400 ++s;
adam@1388 2401 }
adam@1388 2402
adam@1388 2403 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821 2404 }
adamc@821 2405
adamc@828 2406 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828 2407 return strlen(s);
adamc@828 2408 }
adamc@828 2409
adam@1388 2410 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388 2411 while (n > 0) {
adam@1388 2412 if (*s == 0)
adam@1388 2413 return uw_Basis_False;
adam@1388 2414
adam@1388 2415 --n;
adam@1388 2416 ++s;
adam@1388 2417 }
adam@1388 2418
adam@1388 2419 return uw_Basis_True;
adam@1388 2420 }
adam@1388 2421
adamc@829 2422 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829 2423 return strchr(s, ch);
adamc@829 2424 }
adamc@829 2425
adamc@831 2426 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831 2427 return strcspn(s, chs);
adamc@831 2428 }
adamc@831 2429
adamc@829 2430 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829 2431 uw_Basis_string r = strchr(s, ch);
adamc@829 2432 if (r == NULL)
adamc@829 2433 return NULL;
adamc@829 2434 else {
adamc@829 2435 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829 2436 *nr = r - s;
adamc@829 2437 return nr;
adamc@829 2438 }
adamc@829 2439 }
adamc@829 2440
adam@1390 2441 uw_Basis_int *uw_Basis_strsindex(uw_context ctx, const char *haystack, const char *needle) {
adam@1390 2442 uw_Basis_string r = strstr(haystack, needle);
adam@1390 2443 if (r == NULL)
adam@1390 2444 return NULL;
adam@1390 2445 else {
adam@1390 2446 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390 2447 *nr = r - haystack;
adam@1390 2448 return nr;
adam@1390 2449 }
adam@1390 2450 }
adam@1390 2451
adamc@311 2452 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828 2453 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180 2454 char *s;
adamc@180 2455
adamc@311 2456 uw_check_heap(ctx, len);
adamc@180 2457
adamc@666 2458 s = ctx->heap.front;
adamc@180 2459
adamc@180 2460 strcpy(s, s1);
adamc@180 2461 strcat(s, s2);
adamc@666 2462 ctx->heap.front += len;
adamc@180 2463
adamc@180 2464 return s;
adamc@180 2465 }
adamc@278 2466
adamc@829 2467 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829 2468 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829 2469
adamc@829 2470 if (start < 0)
adamc@829 2471 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829 2472 if (len < 0)
adamc@829 2473 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829 2474 if (start + len > full_len)
adamc@829 2475 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829 2476
adamc@829 2477 if (start + len == full_len)
adamc@829 2478 return &s[start];
adamc@829 2479 else {
adamc@829 2480 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959 2481 memcpy(r, s+start, len);
adamc@829 2482 r[len] = 0;
adamc@829 2483 return r;
adamc@829 2484 }
phurst@1981 2485
adamc@829 2486 }
adamc@829 2487
adamc@1023 2488 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023 2489 char *r;
adamc@1023 2490
adamc@1023 2491 uw_check_heap(ctx, 2);
adamc@1023 2492 r = ctx->heap.front;
adamc@1023 2493 r[0] = ch;
adamc@1023 2494 r[1] = 0;
adamc@1023 2495
adamc@1023 2496 ctx->heap.front += 2;
adamc@1023 2497
adamc@1023 2498 return r;
adamc@1023 2499 }
adamc@1023 2500
adamc@737 2501 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828 2502 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278 2503 char *s;
adamc@278 2504
adamc@311 2505 uw_check_heap(ctx, len);
adamc@278 2506
adamc@666 2507 s = ctx->heap.front;
adamc@278 2508
adamc@278 2509 strcpy(s, s1);
adamc@666 2510 ctx->heap.front += len;
adamc@278 2511
adamc@278 2512 return s;
adamc@278 2513 }
adamc@280 2514
adam@1295 2515 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295 2516 if (ctx->error_message[0]) {
adam@1295 2517 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295 2518 ctx->error_message[0] = 0;
adam@1295 2519 return s;
adam@1295 2520 } else
adam@1295 2521 return NULL;
adam@1295 2522 }
adam@1295 2523
adamc@737 2524 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493 2525 if (s1)
adamc@737 2526 return uw_strdup(ctx, s1);
adamc@493 2527 else
adamc@493 2528 return NULL;
adamc@493 2529 }
adamc@493 2530
adamc@742 2531 char *uw_memdup(uw_context ctx, const char *p, size_t len) {
adamc@742 2532 char *r = uw_malloc(ctx, len);
adamc@742 2533 memcpy(r, p, len);
adamc@742 2534 return r;
adamc@742 2535 }
adamc@280 2536
adamc@879 2537 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879 2538
adamc@311 2539 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281 2540 int len;
adamc@281 2541 char *r;
adamc@281 2542
adamc@311 2543 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666 2544 r = ctx->heap.front;
adamc@879 2545 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666 2546 ctx->heap.front += len+1;
adamc@281 2547 return r;
adamc@281 2548 }
adamc@281 2549
adamc@467 2550 char *uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int *n) {
adamc@467 2551 if (n == NULL)
adamc@467 2552 return "NULL";
adamc@467 2553 else
adamc@467 2554 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467 2555 }
adamc@467 2556
adam@1920 2557 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879 2558
adamc@311 2559 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281 2560 int len;
adamc@281 2561 char *r;
adamc@281 2562
adamc@311 2563 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666 2564 r = ctx->heap.front;
adamc@879 2565 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666 2566 ctx->heap.front += len+1;
adamc@281 2567 return r;
adamc@281 2568 }
adamc@281 2569
adamc@467 2570 char *uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float *n) {
adamc@467 2571 if (n == NULL)
adamc@467 2572 return "NULL";
adamc@467 2573 else
adamc@467 2574 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467 2575 }
adamc@467 2576
adam@1834 2577 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879 2578 char *uw_sqlsuffixString = "::text";
adamc@1011 2579 char *uw_sqlsuffixChar = "::char";
adamc@281 2580
adamc@311 2581 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280 2582 char *r, *s2;
adamc@280 2583
adamc@879 2584 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280 2585
adamc@666 2586 r = s2 = ctx->heap.front;
adamc@879 2587 if (uw_Estrings)
adamc@879 2588 *s2++ = 'E';
adamc@280 2589 *s2++ = '\'';
adamc@280 2590
adamc@280 2591 for (; *s; s++) {
adamc@280 2592 char c = *s;
adamc@280 2593
adamc@280 2594 switch (c) {
adamc@280 2595 case '\'':
adamc@885 2596 if (uw_Estrings)
adamc@885 2597 strcpy(s2, "\\'");
adamc@885 2598 else
adamc@885 2599 strcpy(s2, "''");
adamc@280 2600 s2 += 2;
adamc@280 2601 break;
adamc@280 2602 case '\\':
adamc@885 2603 if (uw_Estrings) {
adamc@885 2604 strcpy(s2, "\\\\");
adamc@885 2605 s2 += 2;
adamc@885 2606 } else
adamc@885 2607 *s2++ = '\\';
adamc@280 2608 break;
adamc@280 2609 default:
adamc@1150 2610 if (isprint((int)c))
adamc@280 2611 *s2++ = c;
adamc@879 2612 else if (uw_Estrings) {
adam@1857 2613 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280 2614 s2 += 4;
adamc@280 2615 }
adamc@879 2616 else
adam@1689 2617 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280 2618 }
adamc@280 2619 }
adamc@280 2620
adamc@879 2621 *s2++ = '\'';
adamc@879 2622 strcpy(s2, uw_sqlsuffixString);
adamc@879 2623 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280 2624 return r;
adamc@280 2625 }
adamc@281 2626
adamc@1011 2627 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011 2628 char *r, *s2;
adamc@1011 2629
adamc@1011 2630 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011 2631
adamc@1011 2632 r = s2 = ctx->heap.front;
adamc@1011 2633 if (uw_Estrings)
adamc@1011 2634 *s2++ = 'E';
adamc@1011 2635 *s2++ = '\'';
adamc@1011 2636
adamc@1011 2637 switch (c) {
adamc@1011 2638 case '\'':
adamc@1011 2639 if (uw_Estrings)
adamc@1011 2640 strcpy(s2, "\\'");
adamc@1011 2641 else
adamc@1011 2642 strcpy(s2, "''");
adamc@1011 2643 s2 += 2;
adamc@1011 2644 break;
adamc@1011 2645 case '\\':
adamc@1011 2646 if (uw_Estrings) {
adamc@1011 2647 strcpy(s2, "\\\\");
adamc@1011 2648 s2 += 2;
adamc@1011 2649 } else
adamc@1011 2650 *s2++ = '\\';
adamc@1011 2651 break;
adamc@1011 2652 default:
adamc@1150 2653 if (isprint((int)c))
adamc@1011 2654 *s2++ = c;
adamc@1011 2655 else if (uw_Estrings) {
adam@1857 2656 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011 2657 s2 += 4;
adamc@1011 2658 }
adamc@1011 2659 else
adamc@1011 2660 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011 2661 }
adamc@1011 2662
adamc@1011 2663 *s2++ = '\'';
adamc@1011 2664 strcpy(s2, uw_sqlsuffixChar);
adamc@1011 2665 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011 2666 return r;
adamc@1011 2667 }
adamc@1011 2668
adamc@879 2669 char *uw_sqlsuffixBlob = "::bytea";
adamc@879 2670
adam@1867 2671 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737 2672 char *r, *s2;
adamc@737 2673 size_t i;
adamc@737 2674
adam@1867 2675 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737 2676
adamc@737 2677 r = s2 = ctx->heap.front;
adamc@879 2678 if (uw_Estrings)
adamc@879 2679 *s2++ = 'E';
adam@1867 2680 else
adam@1867 2681 *s2++ = 'X';
adamc@737 2682 *s2++ = '\'';
adamc@737 2683
adamc@737 2684 for (i = 0; i < b.size; ++i) {
adam@1867 2685 unsigned char c = b.data[i];
adam@1867 2686
adam@1867 2687 if (uw_Estrings) {
adam@1867 2688 switch (c) {
adam@1867 2689 case '\'':
adamc@885 2690 strcpy(s2, "\\'");
adam@1867 2691 s2 += 2;
adam@1867 2692 break;
adam@1867 2693 case '\\':
adamc@885 2694 strcpy(s2, "\\\\\\\\");
adamc@885 2695 s2 += 4;
adam@1867 2696 break;
adam@1867 2697 default:
adam@1867 2698 if (isprint((int)c))
adam@1867 2699 *s2++ = c;
adam@1867 2700 else {
adam@1867 2701 sprintf(s2, "\\\\%03o", c);
adam@1867 2702 s2 += 5;
adam@1867 2703 }
adamc@737 2704 }
adam@1867 2705 } else {
adam@1867 2706 sprintf(s2, "%02X", c);
adam@1867 2707 s2 += 2;
adamc@737 2708 }
phurst@1981 2709 }
adamc@737 2710
adamc@879 2711 *s2++ = '\'';
adamc@879 2712 strcpy(s2, uw_sqlsuffixBlob);
adamc@879 2713 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737 2714 return r;
adamc@737 2715 }
adamc@737 2716
adamc@682 2717 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 2718 int len;
adamc@682 2719 char *r;
adamc@682 2720 unsigned long long combo = ((unsigned long long)chn.cli << 32) | chn.chn;
adamc@682 2721
adamc@682 2722 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682 2723 r = ctx->heap.front;
adamc@879 2724 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682 2725 ctx->heap.front += len+1;
adamc@682 2726 return r;
adamc@682 2727 }
adamc@682 2728
adamc@682 2729 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 2730 int len;
adamc@682 2731 char *r;
adamc@682 2732 unsigned long long combo = ((unsigned long long)chn.cli << 32) | chn.chn;
adamc@682 2733
adamc@682 2734 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 2735 r = ctx->heap.front;
adamc@682 2736 sprintf(r, "%lld%n", combo, &len);
adamc@682 2737 ctx->heap.front += len+1;
adamc@682 2738 return r;
adamc@682 2739 }
adamc@682 2740
adamc@879 2741 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879 2742
adamc@682 2743 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682 2744 int len;
adamc@682 2745 char *r;
adamc@682 2746
adamc@682 2747 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682 2748 r = ctx->heap.front;
adamc@879 2749 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682 2750 ctx->heap.front += len+1;
adamc@682 2751 return r;
adamc@682 2752 }
adamc@682 2753
adamc@682 2754 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682 2755 int len;
adamc@682 2756 char *r;
adamc@682 2757
adamc@682 2758 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 2759 r = ctx->heap.front;
adamc@682 2760 sprintf(r, "%u%n", cli, &len);
adamc@682 2761 ctx->heap.front += len+1;
adamc@682 2762 return r;
adamc@682 2763 }
adamc@682 2764
adamc@467 2765 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467 2766 if (s == NULL)
adamc@467 2767 return "NULL";
adamc@467 2768 else
adamc@467 2769 return uw_Basis_sqlifyString(ctx, s);
adamc@467 2770 }
adamc@467 2771
adamc@311 2772 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 2773 if (b == uw_Basis_False)
adamc@281 2774 return "FALSE";
adamc@281 2775 else
adamc@281 2776 return "TRUE";
adamc@281 2777 }
adamc@282 2778
adamc@467 2779 char *uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool *b) {
adamc@467 2780 if (b == NULL)
adamc@467 2781 return "NULL";
adamc@467 2782 else
adamc@467 2783 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467 2784 }
adamc@467 2785
adamc@439 2786 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439 2787 size_t len;
adamc@682 2788 char *r, *s;
adam@1392 2789 struct tm stm = {};
adam@1392 2790 stm.tm_isdst = -1;
adamc@682 2791
adam@1365 2792 if (localtime_r(&t.seconds, &stm)) {
adamc@682 2793 s = uw_malloc(ctx, TIMES_MAX);
adam@1364 2794 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834 2795 if (uw_sql_type_annotations) {
adam@1834 2796 if (t.microseconds) {
adam@1834 2797 r = uw_malloc(ctx, len + 21);
adam@1834 2798 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834 2799 } else {
adam@1834 2800 r = uw_malloc(ctx, len + 14);
adam@1834 2801 sprintf(r, "'%s'::timestamp", s);
adam@1834 2802 }
adam@1367 2803 } else {
adam@1834 2804 r = uw_malloc(ctx, len + 3);
adam@1834 2805 sprintf(r, "'%s'", s);
adam@1367 2806 }
adamc@682 2807 return r;
adamc@682 2808 } else
adamc@682 2809 return "<Invalid time>";
adamc@682 2810 }
adamc@682 2811
adamc@682 2812 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682 2813 size_t len;
adamc@439 2814 char *r;
adam@1392 2815 struct tm stm = {};
adam@1392 2816 stm.tm_isdst = -1;
adamc@439 2817
adam@1365 2818 if (localtime_r(&t.seconds, &stm)) {
adamc@439 2819 uw_check_heap(ctx, TIMES_MAX);
adamc@666 2820 r = ctx->heap.front;
adamc@439 2821 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 2822 ctx->heap.front += len+1;
adamc@439 2823 return r;
adamc@439 2824 } else
adamc@439 2825 return "<Invalid time>";
adamc@439 2826 }
adamc@439 2827
adam@1364 2828 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364 2829 size_t len;
adam@1364 2830 char *r;
adam@1392 2831 struct tm stm = {};
adam@1392 2832 stm.tm_isdst = -1;
adam@1364 2833
adam@1365 2834 if (localtime_r(&t.seconds, &stm)) {
adam@1364 2835 uw_check_heap(ctx, TIMES_MAX);
adam@1364 2836 r = ctx->heap.front;
adam@1365 2837 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365 2838 ctx->heap.front += len;
adam@1365 2839 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365 2840 ctx->heap.front += 8;
adam@1364 2841 return r;
adam@1364 2842 } else
adam@1364 2843 return "<Invalid time>";
adam@1364 2844 }
adam@1364 2845
adamc@467 2846 char *uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time *t) {
adamc@467 2847 if (t == NULL)
adamc@467 2848 return "NULL";
adamc@467 2849 else
adamc@467 2850 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467 2851 }
adamc@467 2852
adamc@311 2853 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311 2854 static uw_Basis_int true = 1;
adamc@311 2855 static uw_Basis_int false = 0;
adamc@282 2856
adamc@311 2857 if (b == uw_Basis_False)
adamc@282 2858 return (char *)&false;
adamc@282 2859 else
adamc@282 2860 return (char *)&true;
adamc@282 2861 }
adamc@284 2862
adamc@311 2863 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284 2864 int len;
adamc@284 2865 char *r;
adamc@284 2866
adamc@311 2867 uw_check_heap(ctx, INTS_MAX);
adamc@666 2868 r = ctx->heap.front;
adamc@284 2869 sprintf(r, "%lld%n", n, &len);
adamc@666 2870 ctx->heap.front += len+1;
adamc@284 2871 return r;
adamc@284 2872 }
adamc@285 2873
adamc@311 2874 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285 2875 int len;
adamc@285 2876 char *r;
adamc@285 2877
adamc@311 2878 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 2879 r = ctx->heap.front;
adamc@285 2880 sprintf(r, "%g%n", n, &len);
adamc@666 2881 ctx->heap.front += len+1;
adamc@285 2882 return r;
adamc@285 2883 }
adamc@285 2884
adamc@821 2885 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821 2886 char *r = uw_malloc(ctx, 2);
adamc@821 2887 r[0] = ch;
adamc@821 2888 r[1] = 0;
adamc@821 2889 return r;
adamc@821 2890 }
adamc@821 2891
adamc@311 2892 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311 2893 if (b == uw_Basis_False)
adamc@285 2894 return "False";
adamc@285 2895 else
adamc@285 2896 return "True";
adamc@285 2897 }
adamc@288 2898
adam@1359 2899 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352 2900 size_t len;
adam@1352 2901 char *r;
adam@1392 2902 struct tm stm = {};
adam@1392 2903 stm.tm_isdst = -1;
adam@1352 2904
adam@1365 2905 if (localtime_r(&t.seconds, &stm)) {
adam@1352 2906 uw_check_heap(ctx, TIMES_MAX);
adam@1352 2907 r = ctx->heap.front;
adam@1352 2908 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352 2909 ctx->heap.front += len+1;
adam@1352 2910 return r;
adam@1352 2911 } else
adam@1352 2912 return "<Invalid time>";
adam@1352 2913 }
adam@1352 2914
adam@1629 2915 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629 2916 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629 2917 }
adam@1629 2918
adamc@311 2919 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288 2920 char *endptr;
adamc@311 2921 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288 2922
adamc@288 2923 if (*s != '\0' && *endptr == '\0') {
adamc@311 2924 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288 2925 *r = n;
adamc@288 2926 return r;
adamc@288 2927 } else
adamc@288 2928 return NULL;
adamc@288 2929 }
adamc@289 2930
adamc@311 2931 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289 2932 char *endptr;
adamc@311 2933 uw_Basis_float n = strtod(s, &endptr);
adamc@289 2934
adamc@289 2935 if (*s != '\0' && *endptr == '\0') {
adamc@311 2936 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289 2937 *r = n;
adamc@289 2938 return r;
adamc@289 2939 } else
adamc@289 2940 return NULL;
adamc@289 2941 }
adamc@289 2942
adamc@821 2943 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821 2944 if (s[0] == 0) {
adamc@821 2945 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821 2946 r[0] = 0;
adamc@821 2947 return r;
adamc@821 2948 } else if (s[1] != 0)
adamc@821 2949 return NULL;
adamc@821 2950 else {
adamc@821 2951 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821 2952 r[0] = s[0];
adamc@821 2953 return r;
adamc@821 2954 }
adamc@821 2955 }
adamc@821 2956
adamc@311 2957 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311 2958 static uw_Basis_bool true = uw_Basis_True;
adamc@311 2959 static uw_Basis_bool false = uw_Basis_False;
adamc@289 2960
adamc@289 2961 if (!strcasecmp (s, "True"))
adamc@289 2962 return &true;
adamc@289 2963 else if (!strcasecmp (s, "False"))
adamc@289 2964 return &false;
adamc@289 2965 else
adamc@289 2966 return NULL;
adamc@289 2967 }
adamc@292 2968
adamc@436 2969 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438 2970 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adam@1374 2971 struct tm stm = {};
adam@1392 2972 stm.tm_isdst = -1;
adamc@436 2973
adamc@439 2974 if (dot) {
adamc@439 2975 *dot = 0;
adamc@439 2976 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439 2977 *dot = '.';
adamc@439 2978 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365 2979 r->seconds = mktime(&stm);
adam@1365 2980 r->microseconds = 0;
adamc@439 2981 return r;
adamc@439 2982 }
adamc@439 2983 else {
adamc@439 2984 *dot = '.';
adamc@439 2985 return NULL;
adamc@439 2986 }
adamc@436 2987 }
adamc@439 2988 else {
adam@2072 2989 if (strptime(s, ctx->app->time_format, &stm) == end) {
adamc@439 2990 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365 2991 r->seconds = mktime(&stm);
adam@1365 2992 r->microseconds = 0;
adamc@439 2993 return r;
adam@2072 2994 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@2072 2995 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@2072 2996 r->seconds = mktime(&stm);
adam@2072 2997 r->microseconds = 0;
adam@2072 2998 return r;
adam@2072 2999 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439 3000 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365 3001 r->seconds = mktime(&stm);
adam@1365 3002 r->microseconds = 0;
adamc@439 3003 return r;
adam@1632 3004 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632 3005 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632 3006 r->seconds = mktime(&stm);
adam@1632 3007 r->microseconds = 0;
adam@1632 3008 return r;
adamc@439 3009 }
adamc@439 3010 else
adamc@439 3011 return NULL;
adamc@439 3012 }
adamc@436 3013 }
adamc@436 3014
adam@1352 3015 uw_Basis_time *uw_Basis_stringToTimef(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352 3016 char *end = strchr(s, 0);
adam@1374 3017 struct tm stm = {};
adam@1392 3018 stm.tm_isdst = -1;
adam@1352 3019
adam@1352 3020 if (strptime(s, fmt, &stm) == end) {
adam@1352 3021 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365 3022 r->seconds = mktime(&stm);
adam@1365 3023 r->microseconds = 0;
adam@1352 3024 return r;
adam@1352 3025 }
adam@1352 3026 else
adam@1352 3027 return NULL;
adam@1352 3028 }
adam@1352 3029
adamc@311 3030 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292 3031 char *endptr;
adamc@311 3032 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292 3033
adamc@292 3034 if (*s != '\0' && *endptr == '\0')
adamc@292 3035 return n;
adamc@292 3036 else
adam@1444 3037 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292 3038 }
adamc@293 3039
adamc@682 3040 #include <errno.h>
adamc@682 3041
adamc@678 3042 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682 3043 unsigned long long n;
adamc@682 3044
adamc@682 3045 if (sscanf(s, "%llu", &n) < 1)
adam@1444 3046 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682 3047 else {
adamc@682 3048 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682 3049 return ch;
adamc@682 3050 }
adamc@682 3051 }
adamc@682 3052
adamc@682 3053 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678 3054 char *endptr;
adamc@682 3055 unsigned long n = strtoul(s, &endptr, 10);
adamc@678 3056
adamc@678 3057 if (*s != '\0' && *endptr == '\0')
adamc@678 3058 return n;
adamc@678 3059 else
adam@1444 3060 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678 3061 }
adamc@678 3062
adamc@311 3063 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293 3064 char *endptr;
adamc@311 3065 uw_Basis_float n = strtod(s, &endptr);
adamc@293 3066
adamc@293 3067 if (*s != '\0' && *endptr == '\0')
adamc@293 3068 return n;
adamc@293 3069 else
adam@1444 3070 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293 3071 }
adamc@293 3072
adamc@821 3073 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821 3074 if (s[0] == 0)
adamc@821 3075 return 0;
adamc@821 3076 else if (s[1] != 0)
adam@1444 3077 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821 3078 else
adamc@821 3079 return s[0];
adamc@821 3080 }
adamc@821 3081
adamc@311 3082 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296 3083 if (!strcasecmp(s, "T") || !strcasecmp (s, "True"))
adamc@311 3084 return uw_Basis_True;
adamc@296 3085 else if (!strcasecmp(s, "F") || !strcasecmp (s, "False"))
adamc@311 3086 return uw_Basis_False;
adamc@293 3087 else
adam@1444 3088 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293 3089 }
adamc@436 3090
adam@1352 3091 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352 3092 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adam@1352 3093 struct tm stm = {};
adam@1392 3094 stm.tm_isdst = -1;
adam@1352 3095
adam@1352 3096 if (dot) {
adam@1352 3097 *dot = 0;
adam@1352 3098 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352 3099 *dot = '.';
adam@1410 3100 char usec[] = "000000";
adam@1410 3101 int len = strlen(dot+1);
adam@1410 3102 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410 3103 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365 3104 return r;
adam@1352 3105 }
adam@1352 3106 else {
adam@1352 3107 *dot = '.';
adam@1444 3108 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352 3109 }
adam@1352 3110 }
adam@1352 3111 else {
adam@1352 3112 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365 3113 uw_Basis_time r = { mktime(&stm) };
adam@1365 3114 return r;
adam@1352 3115 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365 3116 uw_Basis_time r = { mktime(&stm) };
adam@1365 3117 return r;
adam@1352 3118 } else
adam@1444 3119 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352 3120 }
adam@1352 3121 }
adam@1352 3122
adamc@436 3123 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438 3124 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adamc@436 3125 struct tm stm = {};
adam@1392 3126 stm.tm_isdst = -1;
adamc@436 3127
adamc@438 3128 if (dot) {
adamc@438 3129 *dot = 0;
adamc@438 3130 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438 3131 *dot = '.';
adam@1365 3132 {
adam@1365 3133 uw_Basis_time r = { mktime(&stm) };
adam@1365 3134 return r;
adam@1365 3135 }
adamc@438 3136 }
adamc@438 3137 else {
adamc@438 3138 *dot = '.';
adam@1444 3139 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438 3140 }
adamc@438 3141 }
adamc@438 3142 else {
adam@2072 3143 if (strptime(s, ctx->app->time_format, &stm) == end) {
adam@2072 3144 uw_Basis_time r = { mktime(&stm) };
adam@2072 3145 return r;
adam@2072 3146 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365 3147 uw_Basis_time r = { mktime(&stm) };
adam@1365 3148 return r;
adam@1365 3149 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365 3150 uw_Basis_time r = { mktime(&stm) };
adam@1365 3151 return r;
adam@1632 3152 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632 3153 uw_Basis_time r = { mktime(&stm) };
adam@1632 3154 return r;
adam@1365 3155 } else
adam@1444 3156 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438 3157 }
adamc@436 3158 }
adamc@457 3159
adam@1352 3160 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352 3161 char *end = strchr(s, 0);
adamc@939 3162 struct tm stm = {};
adam@1392 3163 stm.tm_isdst = -1;
adamc@939 3164
adam@1365 3165 if (strptime(s, fmt, &stm) == end) {
adam@1365 3166 uw_Basis_time r = { mktime(&stm) };
adam@1365 3167 return r;
adam@1365 3168 } else
adam@1444 3169 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939 3170 }
adamc@939 3171
adamc@742 3172 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742 3173 char *r = ctx->heap.front;
adamc@742 3174 uw_Basis_blob b = {len, r};
adamc@742 3175
adamc@742 3176 uw_check_heap(ctx, len);
adamc@742 3177
adam@1992 3178 if (s[0] == '\\' && s[1] == 'x') {
adam@1992 3179 s += 2;
adam@1992 3180
adam@1992 3181 while (*s) {
adam@1992 3182 int n;
adam@1992 3183 sscanf(s, "%02x", &n);
adam@1992 3184 *r++ = n;
adam@1992 3185 s += 2;
adam@1992 3186 }
adam@1992 3187 } else {
adam@1992 3188 while (*s) {
adam@1992 3189 if (s[0] == '\\') {
adam@1992 3190 if (s[1] == '\\') {
adam@1992 3191 *r++ = '\\';
adam@1992 3192 s += 2;
adam@1992 3193 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adam@1992 3194 *r++ = (s[1] - '0') * 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adam@1992 3195 s += 4;
adam@1992 3196 }
adam@1992 3197 else {
adam@1992 3198 *r++ = '\\';
adam@1992 3199 ++s;
adam@1992 3200 }
adam@1992 3201 } else {
adam@1992 3202 *r++ = s[0];
adamc@742 3203 ++s;
adamc@742 3204 }
adamc@742 3205 }
adamc@742 3206 }
adamc@742 3207
adamc@742 3208 b.size = r - ctx->heap.front;
adamc@742 3209 ctx->heap.front = r;
adam@1992 3210
adamc@742 3211 return b;
adamc@742 3212 }
adamc@742 3213
adam@1402 3214 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052 3215
adamc@463 3216 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463 3217 int len = strlen(c);
adamc@854 3218 char *p = ctx->outHeaders.start;
adamc@474 3219
adamc@1134 3220 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474 3221 char *p2;
adamc@474 3222 p += 13;
adamc@474 3223 p2 = strchr(p, '=');
adamc@474 3224
adamc@474 3225 if (p2) {
adamc@474 3226 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474 3227
adamc@474 3228 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052 3229 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052 3230 return NULL;
adamc@1052 3231 else {
adamc@1052 3232 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052 3233 memcpy(ret, p2+1, sz);
adamc@1052 3234 ret[sz] = 0;
adamc@1052 3235 return ret;
adamc@1052 3236 }
adamc@474 3237 }
adamc@474 3238 }
adamc@474 3239 }
adamc@463 3240
adamc@1134 3241 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051 3242 char *p2;
adamc@1051 3243
adamc@854 3244 while (1) {
adamc@1051 3245 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134 3246 if ((p2 = strchr(p, ';'))) {
adamc@1051 3247 size_t n = p2 - (p + len);
adamc@1051 3248 char *r = uw_malloc(ctx, n);
adamc@1051 3249 memcpy(r, p + 1 + len, n-1);
adamc@1051 3250 r[n-1] = 0;
adamc@1051 3251 return r;
adamc@1051 3252 } else
adamc@1051 3253 return p + 1 + len;
adamc@1134 3254 } else if ((p = strchr(p, ';')))
adamc@854 3255 p += 2;
adamc@463 3256 else
adamc@463 3257 return NULL;
adamc@463 3258 }
adamc@463 3259 }
adamc@792 3260
adamc@792 3261 return NULL;
adamc@457 3262 }
adamc@462 3263
adam@1877 3264 static void set_cookie(uw_context ctx) {
adam@1877 3265 if (ctx->usedSig)
adam@1877 3266 ctx->needsResig = 1;
adam@1877 3267 }
adam@1877 3268
adamc@1050 3269 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 3270 uw_write_header(ctx, "Set-Cookie: ");
adamc@462 3271 uw_write_header(ctx, c);
adamc@462 3272 uw_write_header(ctx, "=");
adamc@462 3273 uw_write_header(ctx, v);
adamc@466 3274 uw_write_header(ctx, "; path=");
adamc@466 3275 uw_write_header(ctx, prefix);
adamc@1050 3276 if (expires) {
adamc@1050 3277 char formatted[30];
adam@1392 3278 struct tm tm = {};
adam@1392 3279 tm.tm_isdst = -1;
adamc@1050 3280
adam@1365 3281 gmtime_r(&expires->seconds, &tm);
adamc@1050 3282
adamc@1050 3283 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050 3284
adamc@1050 3285 uw_write_header(ctx, "; expires=");
adamc@1050 3286 uw_write_header(ctx, formatted);
adamc@1050 3287 }
adamc@1050 3288 if (secure)
adamc@1050 3289 uw_write_header(ctx, "; secure");
adamc@462 3290 uw_write_header(ctx, "\r\n");
adam@1877 3291 set_cookie(ctx);
adamc@462 3292
adamc@462 3293 return uw_unit_v;
adamc@462 3294 }
adamc@667 3295
adamc@1050 3296 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050 3297 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050 3298 uw_write_header(ctx, c);
adamc@1050 3299 uw_write_header(ctx, "=; path=");
adamc@1050 3300 uw_write_header(ctx, prefix);
adamc@1052 3301 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877 3302 set_cookie(ctx);
adamc@1050 3303
adamc@1050 3304 return uw_unit_v;
adamc@1050 3305 }
adamc@1050 3306
adamc@1113 3307 size_t uw_deltas_max = SIZE_MAX;
adamc@1113 3308
adamc@682 3309 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682 3310 unsigned i;
adamc@682 3311 delta *d;
adamc@671 3312
adamc@682 3313 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682 3314 if (ctx->deltas[i].client == client)
adamc@682 3315 return &ctx->deltas[i];
adamc@671 3316
adamc@682 3317 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113 3318 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113 3319 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113 3320
adamc@682 3321 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369 3322 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682 3323 }
adamc@671 3324
adamc@682 3325 d = &ctx->deltas[ctx->used_deltas++];
adamc@682 3326 d->client = client;
adam@1369 3327 uw_buffer_reset(&d->msgs);
adamc@682 3328 return d;
adamc@671 3329 }
adamc@671 3330
adamc@668 3331 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682 3332 if (ctx->client == NULL)
adamc@682 3333 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671 3334
adamc@682 3335 return new_channel(ctx->client);
adamc@668 3336 }
adamc@668 3337
adamc@668 3338 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682 3339 delta *d = allocate_delta(ctx, chn.cli);
adamc@682 3340 size_t len;
adamc@682 3341 int preLen;
adamc@682 3342 char pre[INTS_MAX + 2];
adamc@668 3343
adamc@682 3344 len = strlen(msg);
adamc@682 3345
adamc@682 3346 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682 3347
adam@1369 3348 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369 3349 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369 3350 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671 3351
adamc@671 3352 return uw_unit_v;
adamc@668 3353 }
adamc@671 3354
adam@1327 3355 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131 3356 int i;
adamc@1131 3357 cleanup *cl;
adamc@1131 3358
adamc@1131 3359 if (ctx->client)
adamc@1131 3360 release_client(ctx->client);
adamc@1131 3361
adamc@1131 3362 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131 3363 cl->func(cl->arg);
adamc@1131 3364
adamc@1131 3365 ctx->cleanup_front = ctx->cleanup;
adamc@1131 3366
adamc@1131 3367 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131 3368 if (ctx->transactionals[i].rollback != NULL)
adamc@1131 3369 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131 3370
adamc@1131 3371 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131 3372 if (ctx->transactionals[i].free)
adam@1327 3373 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131 3374
adam@1941 3375 if (ctx->app && ctx->transaction_started) {
adam@1941 3376 ctx->transaction_started = 0;
adam@1941 3377 return ctx->app->db_rollback(ctx);
adam@1941 3378 } else
adam@1941 3379 return 0;
adamc@1131 3380 }
adamc@1131 3381
adam@1956 3382 const char uw_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@1956 3383 const char uw_begin_html5[] = "<!DOCTYPE html><html>";
adam@1728 3384
adam@1877 3385 extern int uw_hash_blocksize;
adam@1877 3386
adam@1877 3387 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877 3388
adam@1877 3389 static char *find_sig(char *haystack) {
adam@1877 3390 int i;
adam@1877 3391 char *s = strstr(haystack, sig_intro);
adam@1877 3392
adam@1877 3393 if (!s || strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877 3394 return NULL;
phurst@1981 3395
adam@1877 3396 s += sizeof sig_intro - 1;
adam@1877 3397
adam@1877 3398 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877 3399 if (!isxdigit((int)s[i]))
adam@1877 3400 return NULL;
adam@1877 3401
adam@1877 3402 if (s[i] != '"')
adam@1877 3403 return NULL;
adam@1877 3404
adam@1877 3405 return s;
adam@1877 3406 }
adam@1877 3407
adam@2033 3408 static pthread_mutex_t message_send_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2033 3409
adam@1938 3410 int uw_commit(uw_context ctx) {
adamc@1104 3411 int i;
adam@1877 3412 char *sig;
adamc@1104 3413
adamc@1131 3414 if (uw_has_error(ctx)) {
adam@1327 3415 uw_rollback(ctx, 0);
adam@1938 3416 return 0;
adamc@1131 3417 }
adamc@1131 3418
adamc@1104 3419 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771 3420 if (ctx->transactionals[i].rollback != NULL)
adamc@1131 3421 if (ctx->transactionals[i].commit) {
adamc@1083 3422 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131 3423 if (uw_has_error(ctx)) {
adam@1327 3424 uw_rollback(ctx, 0);
adam@1938 3425 return 0;
adamc@1131 3426 }
adamc@1131 3427 }
adamc@771 3428
adam@2033 3429 // Here's an important lock to provide the abstraction that all messages from one transaction are sent as an atomic unit.
adam@2033 3430 if (ctx->used_deltas > 0)
adam@2033 3431 pthread_mutex_lock(&message_send_mutex);
adam@2033 3432
adam@2000 3433 if (ctx->transaction_started) {
adam@2000 3434 int code = ctx->app->db_commit(ctx);
adam@2000 3435
adam@2000 3436 if (code) {
adam@2033 3437 if (ctx->used_deltas > 0)
adam@2033 3438 pthread_mutex_unlock(&message_send_mutex);
adam@2033 3439
adam@2000 3440 if (ctx->client)
adam@2000 3441 release_client(ctx->client);
adam@2000 3442
adam@2000 3443 if (code == -1) {
adam@2000 3444 // This case is for a serialization failure, which is not really an "error."
adam@2000 3445 // The transaction will restart, so we should rollback any transactionals
adam@2000 3446 // that triggered above.
adam@2000 3447
adam@2000 3448 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000 3449 if (ctx->transactionals[i].rollback != NULL)
adam@2000 3450 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2000 3451
adam@2000 3452 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000 3453 if (ctx->transactionals[i].free)
adam@2000 3454 ctx->transactionals[i].free(ctx->transactionals[i].data, 1);
adam@2000 3455
grrwlf@2030 3456 return 1;
adam@2000 3457 }
adam@2000 3458
adam@2000 3459 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000 3460 if (ctx->transactionals[i].free)
adam@2000 3461 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000 3462
adam@2000 3463 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@2000 3464 return 0;
adam@2000 3465 }
adam@2000 3466 }
adam@2000 3467
adamc@1104 3468 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771 3469 if (ctx->transactionals[i].rollback == NULL)
adamc@1131 3470 if (ctx->transactionals[i].commit) {
adamc@1083 3471 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131 3472 if (uw_has_error(ctx)) {
adam@2033 3473 if (ctx->used_deltas > 0)
adam@2033 3474 pthread_mutex_unlock(&message_send_mutex);
adam@2033 3475
adam@2033 3476 if (ctx->client)
adam@2033 3477 release_client(ctx->client);
adam@2033 3478
adam@2033 3479 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033 3480 if (ctx->transactionals[i].rollback != NULL)
adam@2033 3481 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2033 3482
adam@2033 3483 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033 3484 if (ctx->transactionals[i].free)
adam@2033 3485 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000 3486
adam@1938 3487 return 0;
adamc@1131 3488 }
adamc@1131 3489 }
adamc@1131 3490
adamc@682 3491 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682 3492 delta *d = &ctx->deltas[i];
adamc@682 3493 client *c = find_client(d->client);
adamc@682 3494
adam@1551 3495 assert (c != NULL);
adam@1551 3496 assert(c->mode == USED);
adamc@682 3497
adam@1447 3498 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682 3499 }
adamc@682 3500
adam@2033 3501 if (ctx->used_deltas > 0)
adam@2033 3502 pthread_mutex_unlock(&message_send_mutex);
adam@2033 3503
adamc@682 3504 if (ctx->client)
adamc@685 3505 release_client(ctx->client);
adamc@771 3506
adamc@1104 3507 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083 3508 if (ctx->transactionals[i].free)
adam@1327 3509 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916 3510
vshabanoff@1726 3511 uw_check(ctx, 1);
vshabanoff@1726 3512 *ctx->page.front = 0;
adam@1413 3513
adam@1956 3514 if (!ctx->returning_indirectly
adam@1956 3515 && (ctx->app->is_html5
adam@1956 3516 ? !strncmp(ctx->page.start, uw_begin_html5, sizeof uw_begin_html5 - 1)
adam@1956 3517 : !strncmp(ctx->page.start, uw_begin_xhtml, sizeof uw_begin_xhtml - 1))) {
adam@1728 3518 char *s;
adam@1728 3519
adam@1728 3520 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1956 3521 s = ctx->page.start + (ctx->app->is_html5 ? sizeof uw_begin_html5 - 1 : sizeof uw_begin_xhtml - 1);
adam@1728 3522 s = strchr(s, '<');
adam@1728 3523 if (s == NULL) {
adam@1728 3524 // Weird. Document has no tags!
adam@1728 3525
adam@1728 3526 uw_write(ctx, "<head></head><body></body>");
adam@1728 3527 uw_check(ctx, 1);
adam@1728 3528 *ctx->page.front = 0;
adam@1728 3529 } else if (!strncmp(s, "<head>", 6)) {
adam@1728 3530 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728 3531
adam@1729 3532 // Any freeform JavaScript to include?
adam@1729 3533 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729 3534 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729 3535 size_t lenP = lenH + 40 + len;
adam@1729 3536 char *start = s + 6, *oldPage = ctx->page.start;
adam@1729 3537
adam@1729 3538 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729 3539 start += ctx->page.start - oldPage;
adam@1729 3540 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729 3541 ctx->page.front += lenP;
adam@1729 3542 memcpy(start, ctx->script_header, lenH);
adam@1729 3543 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729 3544 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729 3545 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729 3546 } else {
adam@1729 3547 size_t lenH = strlen(ctx->script_header);
adam@1729 3548 char *start = s + 6, *oldPage = ctx->page.start;
adam@1729 3549
adam@1729 3550 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729 3551 start += ctx->page.start - oldPage;
adam@1729 3552 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729 3553 ctx->page.front += lenH;
adam@1729 3554 memcpy(start, ctx->script_header, lenH);
adam@1729 3555 }
adam@1728 3556 } else {
adam@1728 3557 // No <head>. At this point, add it, with <script> tags inside.
adam@1728 3558
adam@1729 3559 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729 3560 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729 3561 size_t lenP = lenH + 53 + len;
adam@1729 3562 char *start = s, *oldPage = ctx->page.start;
adam@1729 3563
adam@1729 3564 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729 3565 start += ctx->page.start - oldPage;
adam@1729 3566 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729 3567 ctx->page.front += lenP;
adam@1729 3568 memcpy(start, "<head>", 6);
adam@1729 3569 memcpy(start + 6, ctx->script_header, lenH);
adam@1729 3570 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729 3571 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729 3572 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729 3573 } else {
adam@1729 3574 size_t lenH = strlen(ctx->script_header);
adam@1729 3575 size_t lenP = lenH + 13;
adam@1729 3576 char *start = s, *oldPage = ctx->page.start;
adam@1729 3577
adam@1729 3578 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729 3579 start += ctx->page.start - oldPage;
adam@1729 3580 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729 3581 ctx->page.front += lenP;
adam@1729 3582 memcpy(start, "<head>", 6);
adam@1729 3583 memcpy(start + 6, ctx->script_header, lenH);
adam@1729 3584 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729 3585 }
adamc@916 3586 }
adamc@916 3587 }
adam@1877 3588
adam@1877 3589 if (ctx->needsResig) {
adam@1877 3590 sig = find_sig(ctx->page.start);
adam@1877 3591 if (sig) {
adam@1877 3592 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877 3593
adam@1877 3594 do {
adam@1877 3595 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877 3596 sig = find_sig(sig);
adam@1877 3597 } while (sig);
adam@1877 3598 }
adam@1877 3599 }
adam@1938 3600
adam@1938 3601 return 0;
adamc@671 3602 }
adamc@671 3603
adamc@683 3604
adamc@1113 3605 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113 3606
adam@2001 3607 int uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327 3608 uw_callback_with_retry free) {
adamc@771 3609 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113 3610 if (ctx->used_transactionals+1 > uw_transactionals_max)
adam@2001 3611 // Exceeded limit on number of transactionals.
adam@2001 3612 return -1;
adamc@1084 3613 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771 3614 ++ctx->n_transactionals;
adamc@771 3615 }
adamc@771 3616
adamc@771 3617 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771 3618 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771 3619 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771 3620 ctx->transactionals[ctx->used_transactionals++].free = free;
adam@2001 3621
adam@2001 3622 return 0;
adamc@771 3623 }
adamc@771 3624
adamc@683 3625
adamc@683 3626 // "Garbage collection"
adamc@683 3627
adamc@1121 3628 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121 3629 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121 3630
adamc@1121 3631 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683 3632 int r = setjmp(ctx->jmp_buf);
adamc@683 3633
adamc@1121 3634 if (r == 0)
adamc@1121 3635 uw_do_expunge(ctx, cli, data);
adamc@1121 3636 else
adamc@1121 3637 ctx->app->db_rollback(ctx);
adamc@1121 3638
adamc@1121 3639 uw_post_expunge(ctx, data);
adamc@683 3640
adamc@683 3641 return r;
adamc@683 3642 }
adamc@683 3643
adamc@683 3644 void uw_prune_clients(uw_context ctx) {
adamc@683 3645 client *c, *next, *prev = NULL;
adamc@683 3646 time_t cutoff;
adamc@683 3647
adamc@1094 3648 cutoff = time(NULL) - ctx->app->timeout;
adamc@683 3649
adamc@683 3650 pthread_mutex_lock(&clients_mutex);
adam@1707 3651 pruning_thread = pthread_self();
adam@1707 3652 pruning_thread_initialized = 1;
adamc@683 3653
adamc@683 3654 for (c = clients_used; c; c = next) {
adamc@683 3655 next = c->next;
adamc@683 3656 pthread_mutex_lock(&c->lock);
adamc@685 3657 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683 3658 failure_kind fk = UNLIMITED_RETRY;
adamc@683 3659 if (prev)
adamc@683 3660 prev->next = next;
adamc@683 3661 else
adamc@683 3662 clients_used = next;
adamc@683 3663 while (fk == UNLIMITED_RETRY) {
adam@1941 3664 uw_reset(ctx);
adamc@1121 3665 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121 3666 if (fk == UNLIMITED_RETRY)
adamc@684 3667 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683 3668 }
adamc@684 3669 if (fk == SUCCESS)
adamc@684 3670 free_client(c);
adamc@1121 3671 else
adamc@856 3672 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683 3673 }
adamc@683 3674 else
adamc@683 3675 prev = c;
adamc@683 3676 pthread_mutex_unlock(&c->lock);
adamc@683 3677 }
adamc@683 3678
adamc@683 3679 pthread_mutex_unlock(&clients_mutex);
adamc@683 3680 }
adamc@687 3681
adamc@687 3682 failure_kind uw_initialize(uw_context ctx) {
adamc@687 3683 int r = setjmp(ctx->jmp_buf);
adamc@687 3684
adamc@687 3685 if (r == 0) {
adam@1936 3686 uw_ensure_transaction(ctx);
adamc@1094 3687 ctx->app->initializer(ctx);
adam@2296 3688 if (uw_commit(ctx))
adamc@687 3689 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687 3690 }
adamc@687 3691
adamc@687 3692 return r;
adamc@687 3693 }
adamc@717 3694
adamc@1065 3695 static int url_bad(uw_Basis_string s) {
adamc@1065 3696 for (; *s; ++s)
adamc@1153 3697 if (!isgraph((int)*s))
adamc@1065 3698 return 1;
adamc@1065 3699
adamc@1065 3700 return 0;
adamc@1065 3701 }
adamc@1065 3702
adamc@717 3703 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065 3704 if (url_bad(s))
adamc@1065 3705 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094 3706 if (ctx->app->check_url(s))
adamc@770 3707 return s;
adamc@770 3708 else
adamc@770 3709 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717 3710 }
adamc@734 3711
adamc@770 3712 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065 3713 if (url_bad(s))
adamc@1065 3714 return NULL;
adamc@1094 3715 if (ctx->app->check_url(s))
adamc@770 3716 return s;
adamc@770 3717 else
adamc@770 3718 return NULL;
adamc@770 3719 }
adamc@770 3720
adam@1465 3721 static int mime_format(const char *s) {
adamc@770 3722 for (; *s; ++s)
grrwlf@2024 3723 if (!isalnum((int)*s) && *s != '/' && *s != '-' && *s != '.' && *s != '+')
adamc@770 3724 return 0;
adamc@770 3725
adamc@770 3726 return 1;
adamc@770 3727 }
adamc@770 3728
adamc@741 3729 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770 3730 if (!mime_format(s))
adamc@770 3731 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770 3732
adamc@1094 3733 if (ctx->app->check_mime(s))
adamc@770 3734 return s;
adamc@770 3735 else
adamc@770 3736 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770 3737 }
adamc@770 3738
adamc@770 3739 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770 3740 if (!mime_format(s))
adamc@770 3741 return NULL;
adamc@770 3742
adamc@1094 3743 if (ctx->app->check_mime(s))
adamc@770 3744 return s;
adamc@770 3745 else
adamc@770 3746 return NULL;
adamc@741 3747 }
adamc@741 3748
adam@1465 3749 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465 3750 if (!mime_format(s))
adam@1465 3751 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465 3752
adam@1465 3753 if (ctx->app->check_requestHeader(s))
adam@1465 3754 return s;
adam@1465 3755 else
adam@1465 3756 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465 3757 }
adam@1465 3758
adam@1465 3759 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465 3760 if (!mime_format(s))
adam@1465 3761 return NULL;
adam@1465 3762
adam@1465 3763 if (ctx->app->check_requestHeader(s))
adam@1465 3764 return s;
adam@1465 3765 else
adam@1465 3766 return NULL;
adam@1465 3767 }
adam@1465 3768
adam@1465 3769 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465 3770 if (!mime_format(s))
adam@1465 3771 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465 3772
adam@1465 3773 if (ctx->app->check_responseHeader(s))
adam@1465 3774 return s;
adam@1465 3775 else
adam@1465 3776 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465 3777 }
adam@1465 3778
adam@1799 3779 static int envVar_format(const char *s) {
adam@1799 3780 for (; *s; ++s)
adam@1799 3781 if (!isalnum((int)*s) && *s != '_' && *s != '.')
adam@1799 3782 return 0;
adam@1799 3783
adam@1799 3784 return 1;
adam@1799 3785 }
adam@1799 3786
adam@1465 3787 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799 3788 if (!envVar_format(s))
adam@1465 3789 return NULL;
adam@1465 3790
adam@1465 3791 if (ctx->app->check_responseHeader(s))
adam@1465 3792 return s;
adam@1465 3793 else
adam@1465 3794 return NULL;
adam@1465 3795 }
adam@1465 3796
adam@1799 3797 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799 3798 if (!envVar_format(s))
adam@1799 3799 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799 3800
adam@1799 3801 if (ctx->app->check_envVar(s))
adam@1799 3802 return s;
adam@1799 3803 else
adam@1799 3804 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799 3805 }
adam@1799 3806
adam@1799 3807 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799 3808 if (!mime_format(s))
adam@1799 3809 return NULL;
adam@1799 3810
adam@1799 3811 if (ctx->app->check_envVar(s))
adam@1799 3812 return s;
adam@1799 3813 else
adam@1799 3814 return NULL;
adam@1799 3815 }
adam@1799 3816
adam@1465 3817 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465 3818 return uw_Basis_requestHeader(ctx, name);
adam@1465 3819 }
adam@1465 3820
adam@1465 3821 static int mime_value_format(const char *s) {
adam@1465 3822 for (; *s; ++s)
adam@1465 3823 if (*s == '\r' || *s == '\n')
adam@1465 3824 return 0;
adam@1465 3825
adam@1465 3826 return 1;
adam@1465 3827 }
adam@1465 3828
adam@1465 3829 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465 3830 if (!mime_value_format(value))
adam@1465 3831 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465 3832
adam@1465 3833 uw_write_header(ctx, name);
adam@1465 3834 uw_write_header(ctx, ": ");
adam@1465 3835 uw_write_header(ctx, value);
adam@1465 3836 uw_write_header(ctx, "\r\n");
adam@1465 3837
adam@1465 3838 return uw_unit_v;
adam@1465 3839 }
adam@1465 3840
adam@1799 3841 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1993 3842 if (ctx->get_env)
adam@1993 3843 return ctx->get_env(ctx->get_env_data, name);
adam@1993 3844 else
adam@1994 3845 return getenv(name);
adam@1799 3846 }
adam@1799 3847
adamc@734 3848 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734 3849 return s ? s : "";
adamc@734 3850 }
adamc@734 3851
adamc@734 3852 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734 3853 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734 3854 int i;
phurst@1981 3855
adamc@734 3856 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734 3857 sprintf(&r[2*i], "%.02X", ((unsigned char *)sig)[i]);
adamc@734 3858
adamc@734 3859 return r;
adamc@734 3860 }
adamc@734 3861
adam@1512 3862 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512 3863 * optimizations that would enable timing attacks. See:
adam@1512 3864 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512 3865 */
adam@1512 3866 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512 3867 int i, x = 0, len1 = strlen(s1);
adam@1512 3868
adam@1512 3869 if (len1 != strlen(s2)) return 0;
adam@1512 3870
adam@1512 3871 for (i = 0; i < len1; ++i) {
adam@1512 3872 __asm__ __volatile__ ("");
adam@1512 3873 x |= s1[i] ^ s2[i];
adam@1512 3874 }
adam@1512 3875
adam@1512 3876 return x == 0;
adam@1512 3877 }
adam@1512 3878
adamc@734 3879 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877 3880 ctx->usedSig = 1;
adamc@1094 3881 return ctx->app->cookie_sig(ctx);
adamc@734 3882 }
adamc@737 3883
adamc@737 3884 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737 3885 return f.name;
adamc@737 3886 }
adamc@737 3887
adamc@740 3888 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740 3889 return f.type;
adamc@740 3890 }
adamc@740 3891
adamc@745 3892 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745 3893 return b.size;
adamc@745 3894 }
adamc@745 3895
adamc@1119 3896 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119 3897 uw_Basis_blob b = {strlen(s), s};
adamc@1119 3898
adamc@1119 3899 return b;
adamc@1119 3900 }
adamc@1119 3901
adamc@737 3902 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737 3903 return f.data;
adamc@737 3904 }
adamc@741 3905
adam@1347 3906 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347 3907 return pb.type;
adam@1347 3908 }
adam@1347 3909
adam@1347 3910 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347 3911 return pb.data;
adam@1347 3912 }
adam@1347 3913
adam@1471 3914 static char *old_headers(uw_context ctx) {
adam@1471 3915 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471 3916 return NULL;
adam@1471 3917 else {
adam@1471 3918 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471 3919
adam@1471 3920 if (s == NULL || strncasecmp(s+1, "Content-type: ", 14))
adam@1471 3921 return NULL;
adam@1471 3922 else {
adam@1471 3923 s = strchr(s+15, '\n');
adam@1471 3924 if (s == NULL)
adam@1471 3925 return NULL;
adam@1471 3926 else
adam@1471 3927 return uw_strdup(ctx, s+1);
adam@1471 3928 }
adam@1471 3929 }
adam@1471 3930 }
adam@1471 3931
adamc@741