annotate src/c/urweb.c @ 2302:ace43b90b388

Tiny concurrency bugfix (race condition on cache->timeNow).
author Ziv Scully <ziv@mit.edu>
date Fri, 20 Nov 2015 10:51:43 -0500
parents 6e580e319077
children 42079884e34a
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) {
ziv@2285 522 puts("Initializing");
adamc@311 523 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136 524
adamc@1094 525 ctx->app = NULL;
adam@1446 526 ctx->id = id;
adamc@1094 527
adamc@854 528 ctx->get_header = NULL;
adamc@854 529 ctx->get_header_data = NULL;
adamc@457 530
adam@1799 531 ctx->get_env = NULL;
adam@1799 532 ctx->get_env_data = NULL;
adam@1799 533
adam@1413 534 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413 535 ctx->outHeaders.start[0] = 0;
adam@1413 536 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413 537 ctx->page.start[0] = 0;
adam@1451 538 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369 539 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369 540 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667 541 ctx->script.start[0] = 0;
adamc@136 542
adamc@1094 543 ctx->inputs = malloc(0);
adamc@759 544 ctx->cur_container = NULL;
adamc@756 545 ctx->subinputs = malloc(0);
adamc@1094 546 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144 547
adamc@272 548 ctx->db = NULL;
adam@1931 549 ctx->transaction_started = 0;
adamc@272 550
adamc@323 551 ctx->regions = NULL;
adamc@323 552
adamc@425 553 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425 554
adamc@643 555 ctx->script_header = "";
adamc@693 556 ctx->needs_push = 0;
adamc@736 557 ctx->needs_sig = 0;
adam@1936 558 ctx->could_write_db = 1;
adam@2056 559 ctx->at_most_one_query = 0;
adamc@1104 560
adamc@565 561 ctx->source_count = 0;
adamc@562 562
adamc@682 563 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671 564 ctx->deltas = malloc(0);
adamc@671 565
adamc@700 566 ctx->client = NULL;
adamc@700 567
adamc@700 568 ctx->error_message[0] = 0;
adamc@700 569
adamc@771 570 ctx->transactionals = malloc(0);
adamc@771 571 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771 572
adamc@1061 573 ctx->globals = malloc(0);
adamc@1061 574 ctx->n_globals = 0;
adamc@1061 575
adamc@1066 576 ctx->current_url = "";
adamc@1066 577
adamc@1114 578 ctx->deadline = INT_MAX;
adamc@1114 579
adamc@1121 580 ctx->client_data = uw_init_client_data();
adamc@1121 581
grrwlf@1997 582 ctx->loggers = lg;
adam@1334 583
adam@1386 584 ctx->isPost = ctx->hasPostBody = 0;
adam@1347 585
adam@1370 586 ctx->queryString = NULL;
adam@1370 587
adam@1556 588 ctx->nextId = 0;
adam@1556 589
adam@1782 590 ctx->amInitializing = 0;
adam@1782 591
adam@1877 592 ctx->usedSig = 0;
adam@1877 593 ctx->needsResig = 0;
adam@1877 594
adam@1949 595 ctx->output_buffer = malloc(1);
adam@1949 596 ctx->output_buffer_size = 1;
adam@1949 597
ziv@2262 598 ctx->numRecording = 0;
adam@2298 599 ctx->recordingCapacity = 0;
adam@2298 600 ctx->recordingOffsets = malloc(0);
ziv@2285 601 ctx->cacheUpdate = NULL;
ziv@2285 602 ctx->cacheUpdateTail = NULL;
ziv@2204 603
adam@2073 604 ctx->remoteSock = -1;
adam@2073 605
adam@2296 606 ctx->cacheUnlock = NULL;
adam@2296 607
adamc@117 608 return ctx;
adamc@106 609 }
adamc@106 610
adamc@1113 611 size_t uw_inputs_max = SIZE_MAX;
adamc@1113 612
adamc@1121 613 uw_app *uw_get_app(uw_context ctx) {
adamc@1121 614 return ctx->app;
adamc@1121 615 }
adamc@1121 616
adamc@1113 617 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094 618 ctx->app = app;
adamc@1094 619
adamc@1105 620 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113 621 if (app->inputs_len > uw_inputs_max)
adamc@1113 622 return 1;
adamc@1113 623
adamc@1094 624 ctx->sz_inputs = app->inputs_len;
adamc@1094 625 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094 626 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094 627 }
adamc@1134 628
adamc@1134 629 return 0;
adamc@1094 630 }
adamc@1094 631
adamc@1121 632 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121 633 uw_copy_client_data(ctx->client_data, data);
adamc@1121 634 }
adamc@1121 635
adamc@311 636 void uw_set_db(uw_context ctx, void *db) {
adamc@272 637 ctx->db = db;
adamc@272 638 }
adamc@272 639
adamc@311 640 void *uw_get_db(uw_context ctx) {
adamc@272 641 return ctx->db;
adamc@272 642 }
adamc@272 643
grrwlf@1997 644
grrwlf@1997 645 uw_loggers* uw_get_loggers(struct uw_context *ctx) {
grrwlf@1997 646 return ctx->loggers;
grrwlf@1997 647 }
grrwlf@1997 648
adamc@311 649 void uw_free(uw_context ctx) {
adamc@671 650 size_t i;
adamc@671 651
adam@1369 652 uw_buffer_free(&ctx->outHeaders);
adam@1369 653 uw_buffer_free(&ctx->script);
adam@1369 654 uw_buffer_free(&ctx->page);
adam@1369 655 uw_buffer_free(&ctx->heap);
adamc@144 656 free(ctx->inputs);
adamc@756 657 free(ctx->subinputs);
adamc@425 658 free(ctx->cleanup);
adamc@771 659 free(ctx->transactionals);
adamc@1121 660 uw_free_client_data(ctx->client_data);
adamc@671 661
adamc@682 662 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369 663 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330 664 free(ctx->deltas);
adamc@671 665
adamc@1061 666 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089 667 if (ctx->globals[i].free)
adamc@1089 668 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330 669 free(ctx->globals);
adamc@1061 670
adam@1949 671 free(ctx->output_buffer);
adam@1949 672
adam@2298 673 free(ctx->recordingOffsets);
adam@2298 674
adamc@136 675 free(ctx);
adamc@136 676 }
adamc@136 677
adamc@562 678 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369 679 uw_buffer_reset(&ctx->outHeaders);
adam@1369 680 uw_buffer_reset(&ctx->script);
adamc@667 681 ctx->script.start[0] = 0;
adam@1369 682 uw_buffer_reset(&ctx->page);
adam@1451 683 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369 684 uw_buffer_reset(&ctx->heap);
adamc@323 685 ctx->regions = NULL;
adamc@425 686 ctx->cleanup_front = ctx->cleanup;
adamc@682 687 ctx->used_deltas = 0;
adamc@682 688 ctx->client = NULL;
adamc@759 689 ctx->cur_container = NULL;
adamc@771 690 ctx->used_transactionals = 0;
adamc@1117 691 ctx->script_header = "";
adam@1370 692 ctx->queryString = NULL;
adam@1556 693 ctx->nextId = 0;
adam@1782 694 ctx->amInitializing = 0;
adam@1877 695 ctx->usedSig = 0;
adam@1877 696 ctx->needsResig = 0;
adam@2073 697 ctx->remoteSock = -1;
adam@2298 698 ctx->numRecording = 0;
adamc@167 699 }
adamc@167 700
adamc@562 701 void uw_reset_keep_request(uw_context ctx) {
adamc@562 702 uw_reset_keep_error_message(ctx);
adamc@562 703 ctx->error_message[0] = 0;
adamc@167 704 }
adamc@167 705
adamc@311 706 void uw_reset(uw_context ctx) {
adamc@311 707 uw_reset_keep_request(ctx);
adamc@1105 708 if (ctx->app)
adamc@1105 709 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756 710 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461 711 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adam@1943 712 ctx->transaction_started = 0;
adamc@144 713 }
adamc@144 714
adamc@311 715 failure_kind uw_begin_init(uw_context ctx) {
adamc@272 716 int r = setjmp(ctx->jmp_buf);
adamc@272 717
adamc@1105 718 if (r == 0 && ctx->app)
adamc@1094 719 ctx->app->db_init(ctx);
adamc@272 720
adamc@272 721 return r;
adamc@272 722 }
adamc@272 723
adamc@1118 724 void uw_close(uw_context ctx) {
adamc@1118 725 ctx->app->db_close(ctx);
adamc@1118 726 }
adamc@1118 727
adam@1446 728 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446 729 return ctx->get_header(ctx->get_header_data, h);
adam@1446 730 }
adam@1446 731
adamc@854 732 void uw_set_headers(uw_context ctx, char *(*get_header)(void *, const char *), void *get_header_data) {
adamc@854 733 ctx->get_header = get_header;
adamc@854 734 ctx->get_header_data = get_header_data;
adamc@742 735 }
adamc@742 736
adam@1799 737 void uw_set_env(uw_context ctx, char *(*get_env)(void *, const char *), void *get_env_data) {
adam@1799 738 ctx->get_env = get_env;
adam@1799 739 ctx->get_env_data = get_env_data;
adam@1799 740 }
adam@1799 741
adamc@801 742 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801 743 va_list ap;
adamc@801 744 va_start(ap, fmt);
adamc@801 745
adamc@801 746 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801 747 }
adamc@801 748
adamc@1131 749 int uw_has_error(uw_context ctx) {
adamc@1131 750 return ctx->error_message[0] != 0;
adamc@1131 751 }
adamc@1131 752
adamc@311 753 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425 754 cleanup *cl;
adamc@425 755
adamc@167 756 va_list ap;
adamc@167 757 va_start(ap, fmt);
adamc@167 758
adamc@167 759 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167 760
adamc@425 761 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425 762 cl->func(cl->arg);
adamc@425 763
adamc@425 764 ctx->cleanup_front = ctx->cleanup;
adamc@425 765
adamc@190 766 longjmp(ctx->jmp_buf, fk);
adamc@167 767 }
adamc@167 768
adamc@1113 769 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113 770
adamc@425 771 void uw_push_cleanup(uw_context ctx, void (*func)(void *), void *arg) {
adamc@425 772 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425 773 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425 774 if (len == 0)
adamc@425 775 newLen = 1;
adamc@425 776 else
adamc@428 777 newLen = len * 2;
adamc@1113 778
adamc@1134 779 if (newLen > uw_cleanup_max) {
adamc@1113 780 if (len+1 <= uw_cleanup_max)
adamc@1113 781 newLen = uw_cleanup_max;
adamc@1113 782 else
adamc@1113 783 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134 784 }
adamc@1113 785
adamc@470 786 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425 787 ctx->cleanup_front = ctx->cleanup + len;
adamc@425 788 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425 789 }
adamc@425 790
adamc@425 791 ctx->cleanup_front->func = func;
adamc@425 792 ctx->cleanup_front->arg = arg;
adamc@425 793 ++ctx->cleanup_front;
adamc@425 794 }
adamc@425 795
adam@1444 796 char *uw_Basis_htmlifyString(uw_context, const char *);
adam@1444 797
adamc@682 798 void uw_login(uw_context ctx) {
adam@1942 799 char *id_s, *pass_s;
adam@1942 800
adam@1942 801 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adam@1942 802 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adam@1942 803 unsigned id = atoi(id_s);
adam@1942 804 int pass = atoi(pass_s);
adam@1942 805 client *c = find_client(id);
adam@1942 806
adam@1942 807 if (c == NULL)
adam@1942 808 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 809 else {
adamc@685 810 use_client(c);
adamc@682 811 ctx->client = c;
adam@1942 812
adam@1942 813 if (c->mode != USED)
adam@1942 814 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adam@1942 815 if (c->pass != pass)
adam@1942 816 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@864 817 }
adam@1942 818 } else if (ctx->needs_push) {
adam@1942 819 client *c = new_client();
adam@1942 820
adam@1942 821 if (c == NULL)
adam@1942 822 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adam@1942 823
adam@1942 824 use_client(c);
adam@1942 825 uw_copy_client_data(c->data, ctx->client_data);
adam@1942 826 ctx->client = c;
adamc@682 827 }
adamc@682 828 }
adamc@682 829
adamc@671 830 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671 831 int r = setjmp(ctx->jmp_buf);
adamc@671 832
adam@1931 833 if (r == 0)
adam@1931 834 ctx->app->handle(ctx, path);
adam@1931 835
adam@1931 836 return r;
adam@1931 837 }
adam@1931 838
adam@2176 839 static void uw_try_reconnecting(uw_context ctx) {
adam@2176 840 // Hm, error starting transaction.
adam@2176 841 // Maybe the database server died but has since come back up.
adam@2176 842 // Let's try starting from scratch.
adam@2176 843 if (ctx->db) {
adam@2176 844 ctx->app->db_close(ctx);
adam@2176 845 ctx->db = NULL;
adam@2176 846 }
adam@2176 847 ctx->app->db_init(ctx);
adam@2176 848 }
adam@2176 849
adam@2177 850 void uw_try_reconnecting_and_restarting(uw_context ctx) {
adam@2177 851 uw_try_reconnecting(ctx);
adam@2178 852 uw_error(ctx, BOUNDED_RETRY, "Restarting transaction after fixing database connection");
adam@2176 853 }
adam@2176 854
adam@1931 855 void uw_ensure_transaction(uw_context ctx) {
adam@2056 856 if (!ctx->transaction_started && !ctx->at_most_one_query) {
adam@2176 857 if (!ctx->db || ctx->app->db_begin(ctx, ctx->could_write_db)) {
adam@2176 858 uw_try_reconnecting(ctx);
adam@2176 859
adam@2176 860 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adam@2176 861 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adam@2176 862 }
adam@2176 863
adam@1931 864 ctx->transaction_started = 1;
adam@2178 865 } else if (ctx->at_most_one_query && !ctx->db)
adam@2178 866 uw_try_reconnecting(ctx);
adamc@671 867 }
adamc@671 868
adamc@772 869 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682 870 if (ctx->client == NULL)
adamc@682 871 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682 872
adamc@682 873 return ctx->client->id;
adamc@682 874 }
adamc@682 875
adamc@425 876 void uw_pop_cleanup(uw_context ctx) {
adamc@425 877 if (ctx->cleanup_front == ctx->cleanup)
adamc@425 878 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425 879
adamc@425 880 --ctx->cleanup_front;
adamc@425 881 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425 882 }
adamc@425 883
adamc@311 884 char *uw_error_message(uw_context ctx) {
adamc@167 885 return ctx->error_message;
adamc@167 886 }
adamc@167 887
adamc@1115 888 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115 889 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115 890 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115 891 }
adamc@1115 892
adamc@759 893 static input *INP(uw_context ctx) {
adamc@759 894 if (ctx->cur_container == NULL)
adamc@759 895 return ctx->inputs;
adamc@759 896 else if (ctx->cur_container->kind == SUBFORM)
adamc@759 897 return ctx->cur_container->data.subform.fields;
adamc@759 898 else if (ctx->cur_container->kind == ENTRY)
adamc@759 899 return ctx->cur_container->data.entry.fields;
adamc@759 900 else
adamc@760 901 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759 902 }
adamc@759 903
adamc@760 904 static void adjust_pointer(input **ptr, input *old_start, input *new_start, size_t len) {
adamc@760 905 if (*ptr != NULL && *ptr >= old_start && *ptr < old_start + len)
adamc@760 906 *ptr += new_start - old_start;
adamc@760 907 }
adamc@760 908
adamc@760 909 static void adjust_input(input *x, input *old_start, input *new_start, size_t len) {
adamc@759 910 switch (x->kind) {
adamc@759 911 case SUBFORM:
adamc@760 912 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760 913 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759 914 break;
adamc@759 915 case SUBFORMS:
adamc@760 916 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760 917 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759 918 break;
adamc@759 919 case ENTRY:
adamc@760 920 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760 921 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760 922 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134 923 break;
adamc@1134 924 default:
adamc@1134 925 break;
phurst@1981 926 }
adamc@759 927 }
adamc@759 928
adamc@1113 929 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113 930
adamc@759 931 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759 932 size_t i;
adamc@759 933 input *r;
adamc@759 934
adamc@759 935 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113 936 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113 937 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113 938
adamc@759 939 input *new_subinputs = realloc(ctx->subinputs, sizeof(input) * (ctx->used_subinputs + len));
adamc@759 940
adamc@760 941 if (ctx->subinputs != new_subinputs) {
adamc@760 942 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760 943 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094 944 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760 945 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760 946
adamc@760 947 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760 948
adamc@760 949 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760 950 ctx->subinputs = new_subinputs;
adamc@760 951 }
adamc@759 952 }
adamc@759 953
adamc@759 954 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759 955
adamc@759 956 for (i = 0; i < len; ++i)
adam@1474 957 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759 958
adamc@759 959 return r;
adamc@759 960 }
adamc@756 961
adamc@801 962 int uw_set_input(uw_context ctx, const char *name, char *value) {
adamc@1050 963 //printf("Input name %s\n", name);
adamc@1038 964
adamc@756 965 if (!strcasecmp(name, ".b")) {
adamc@1094 966 int n = ctx->app->input_num(value);
adamc@756 967 input *inps;
adamc@756 968
adamc@801 969 if (n < 0) {
adam@1444 970 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801 971 return -1;
adamc@801 972 }
adamc@801 973
adamc@1094 974 if (n >= ctx->app->inputs_len) {
adam@1444 975 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801 976 return -1;
adamc@801 977 }
adamc@756 978
adamc@1094 979 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759 980
adamc@759 981 INP(ctx)[n].kind = SUBFORM;
adamc@759 982 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759 983 INP(ctx)[n].data.subform.fields = inps;
adamc@759 984 ctx->cur_container = &INP(ctx)[n];
adamc@756 985 } else if (!strcasecmp(name, ".e")) {
adamc@756 986 input *tmp;
adamc@756 987
adamc@801 988 if (ctx->cur_container == NULL) {
adamc@801 989 uw_set_error(ctx, "Unmatched subform closer");
adamc@801 990 return -1;
adamc@801 991 }
adamc@756 992
adamc@759 993 tmp = ctx->cur_container;
adamc@759 994 switch (tmp->kind) {
adamc@759 995 case SUBFORM:
adamc@759 996 ctx->cur_container = tmp->data.subform.parent;
adamc@759 997 tmp->data.subform.parent = NULL;
adamc@759 998 break;
adamc@759 999 case SUBFORMS:
adamc@759 1000 ctx->cur_container = tmp->data.subforms.parent;
adamc@759 1001 tmp->data.subforms.parent = NULL;
adamc@759 1002 break;
adamc@759 1003 case ENTRY:
adamc@759 1004 ctx->cur_container = tmp->data.entry.parent;
adamc@759 1005 break;
adamc@759 1006 default:
adamc@801 1007 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801 1008 return -1;
adamc@759 1009 }
adamc@759 1010 } else if (!strcasecmp(name, ".s")) {
adamc@1094 1011 int n = ctx->app->input_num(value);
adamc@759 1012
adamc@801 1013 if (n < 0) {
adam@1444 1014 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801 1015 return -1;
adamc@801 1016 }
adamc@801 1017
adamc@1094 1018 if (n >= ctx->app->inputs_len) {
adam@1444 1019 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801 1020 return -1;
adamc@801 1021 }
adamc@759 1022
adamc@759 1023 INP(ctx)[n].kind = SUBFORMS;
adamc@759 1024 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759 1025 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759 1026 ctx->cur_container = &INP(ctx)[n];
adamc@759 1027 } else if (!strcasecmp(name, ".i")) {
adamc@759 1028 input *inps;
adamc@759 1029
adamc@801 1030 if (!ctx->cur_container) {
adamc@801 1031 uw_set_error(ctx, "New entry without container");
adamc@801 1032 return -1;
adamc@801 1033 }
adamc@801 1034
adamc@801 1035 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801 1036 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801 1037 return -1;
adamc@801 1038 }
adamc@759 1039
adamc@1094 1040 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759 1041
adamc@759 1042 inps->kind = ENTRY;
adamc@759 1043 inps->data.entry.parent = ctx->cur_container;
adamc@759 1044 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759 1045 ctx->cur_container->data.subforms.entries = inps;
adamc@759 1046
adamc@759 1047 inps->data.entry.fields = inps+1;
adamc@759 1048 ctx->cur_container = inps;
adamc@756 1049 } else {
adamc@1094 1050 int n = ctx->app->input_num(name);
adamc@756 1051
adam@1384 1052 if (n < 0)
adam@1384 1053 return 0;
adamc@801 1054
adamc@1094 1055 if (n >= ctx->app->inputs_len) {
adam@1444 1056 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801 1057 return -1;
adamc@801 1058 }
adamc@756 1059
adamc@756 1060 INP(ctx)[n].kind = NORMAL;
adamc@756 1061 INP(ctx)[n].data.normal = value;
adamc@756 1062 }
adamc@801 1063
adamc@801 1064 return 0;
adamc@144 1065 }
adamc@144 1066
adamc@311 1067 char *uw_get_input(uw_context ctx, int n) {
adamc@169 1068 if (n < 0)
adamc@311 1069 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094 1070 if (n >= ctx->app->inputs_len)
adamc@311 1071 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737 1072
adamc@756 1073 switch (INP(ctx)[n].kind) {
adamc@737 1074 case UNSET:
adamc@737 1075 return NULL;
adamc@739 1076 case FIL:
adamc@739 1077 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756 1078 case SUBFORM:
adamc@756 1079 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759 1080 case SUBFORMS:
adamc@759 1081 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759 1082 case ENTRY:
adamc@759 1083 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737 1084 case NORMAL:
adamc@756 1085 return INP(ctx)[n].data.normal;
adamc@737 1086 default:
adamc@737 1087 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 1088 }
adamc@138 1089 }
adamc@138 1090
adamc@311 1091 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190 1092 if (n < 0)
adamc@311 1093 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094 1094 if (n >= ctx->app->inputs_len)
adamc@311 1095 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737 1096
adamc@756 1097 switch (INP(ctx)[n].kind) {
adamc@737 1098 case UNSET:
adamc@737 1099 return "";
adamc@739 1100 case FIL:
adamc@739 1101 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756 1102 case SUBFORM:
adamc@756 1103 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759 1104 case SUBFORMS:
adamc@759 1105 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759 1106 case ENTRY:
adamc@759 1107 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737 1108 case NORMAL:
adamc@756 1109 return INP(ctx)[n].data.normal;
adamc@737 1110 default:
adamc@737 1111 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 1112 }
adamc@737 1113 }
adamc@737 1114
adamc@801 1115 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094 1116 int n = ctx->app->input_num(name);
adamc@737 1117
adamc@801 1118 if (n < 0) {
adam@2054 1119 uw_set_error(ctx, "Bad file input name");
adamc@801 1120 return -1;
adamc@801 1121 }
adamc@801 1122
adamc@1094 1123 if (n >= ctx->app->inputs_len) {
adam@2054 1124 uw_set_error(ctx, "For file input name, index %d is out of range", n);
adamc@801 1125 return -1;
adamc@801 1126 }
adamc@737 1127
adamc@739 1128 ctx->inputs[n].kind = FIL;
adamc@739 1129 ctx->inputs[n].data.file = f;
adamc@801 1130
adamc@801 1131 return 0;
adamc@737 1132 }
adamc@737 1133
adamc@739 1134 void *uw_malloc(uw_context ctx, size_t len);
adamc@739 1135
adamc@739 1136 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737 1137 if (n < 0)
adamc@737 1138 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094 1139 if (n >= ctx->app->inputs_len)
adamc@737 1140 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737 1141
adamc@756 1142 switch (INP(ctx)[n].kind) {
adamc@737 1143 case UNSET:
adamc@737 1144 {
adamc@739 1145 char *data = uw_malloc(ctx, 0);
adamc@740 1146 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739 1147 return f;
adamc@737 1148 }
adamc@739 1149 case FIL:
adamc@756 1150 return INP(ctx)[n].data.file;
adamc@737 1151 case NORMAL:
adamc@737 1152 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756 1153 case SUBFORM:
adamc@756 1154 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759 1155 case SUBFORMS:
adamc@759 1156 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759 1157 case ENTRY:
adamc@759 1158 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737 1159 default:
adamc@737 1160 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 1161 }
adamc@190 1162 }
adamc@190 1163
adamc@756 1164 void uw_enter_subform(uw_context ctx, int n) {
adamc@756 1165 if (n < 0)
adamc@756 1166 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094 1167 if (n >= ctx->app->inputs_len)
adamc@756 1168 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756 1169
adamc@756 1170 switch (INP(ctx)[n].kind) {
adamc@756 1171 case UNSET:
adamc@756 1172 uw_error(ctx, FATAL, "Missing subform");
adamc@756 1173 case FIL:
adamc@756 1174 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756 1175 case NORMAL:
adamc@756 1176 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759 1177 case SUBFORMS:
adamc@759 1178 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759 1179 case ENTRY:
adamc@759 1180 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756 1181 case SUBFORM:
adamc@759 1182 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760 1183 ctx->cur_container = &INP(ctx)[n];
adamc@756 1184 return;
adamc@756 1185 default:
adamc@756 1186 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756 1187 }
adamc@756 1188 }
adamc@756 1189
adamc@756 1190 void uw_leave_subform(uw_context ctx) {
adamc@756 1191 input *tmp;
adamc@756 1192
adamc@759 1193 if (ctx->cur_container == NULL)
adamc@756 1194 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756 1195
adamc@759 1196 tmp = ctx->cur_container;
adamc@759 1197 ctx->cur_container = tmp->data.subform.parent;
adamc@759 1198 tmp->data.subform.parent = NULL;
adamc@759 1199 }
adamc@759 1200
adamc@759 1201 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759 1202 input *inps;
adamc@759 1203
adamc@759 1204 if (n < 0)
adamc@759 1205 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094 1206 if (n >= ctx->app->inputs_len)
adamc@759 1207 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759 1208
adamc@759 1209 switch (INP(ctx)[n].kind) {
adamc@759 1210 case UNSET:
adamc@759 1211 uw_error(ctx, FATAL, "Missing subforms");
adamc@759 1212 case FIL:
adamc@759 1213 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759 1214 case NORMAL:
adamc@759 1215 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759 1216 case SUBFORM:
adamc@759 1217 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759 1218 case ENTRY:
adamc@759 1219 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759 1220 case SUBFORMS:
adamc@759 1221 inps = INP(ctx)[n].data.subforms.entries;
adamc@759 1222 if (inps) {
adamc@759 1223 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759 1224 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759 1225 return 1;
adamc@759 1226 } else
adamc@759 1227 return 0;
adamc@759 1228 default:
adamc@759 1229 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759 1230 }
adamc@759 1231 }
adamc@759 1232
adamc@759 1233 int uw_next_entry(uw_context ctx) {
adamc@759 1234 if (ctx->cur_container == NULL)
adamc@759 1235 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759 1236
adamc@759 1237 switch (ctx->cur_container->kind) {
adamc@759 1238 case UNSET:
adamc@759 1239 uw_error(ctx, FATAL, "Missing entry");
adamc@759 1240 case FIL:
adamc@759 1241 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759 1242 case NORMAL:
adamc@759 1243 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759 1244 case SUBFORM:
adamc@759 1245 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759 1246 case SUBFORMS:
adamc@759 1247 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759 1248 case ENTRY:
adamc@759 1249 if (ctx->cur_container->data.entry.next) {
adamc@759 1250 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759 1251 return 1;
adamc@759 1252 } else {
adamc@759 1253 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759 1254 return 0;
adamc@759 1255 }
adamc@759 1256 default:
adamc@759 1257 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759 1258 }
adamc@756 1259 }
adamc@756 1260
adamc@643 1261 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643 1262 ctx->script_header = s;
adamc@643 1263 }
adamc@643 1264
adamc@1094 1265 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094 1266 return ctx->app->url_prefix;
adamc@667 1267 }
adamc@667 1268
adamc@693 1269 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693 1270 ctx->needs_push = n;
adamc@693 1271 }
adamc@693 1272
adamc@736 1273 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736 1274 ctx->needs_sig = n;
adamc@736 1275 }
adamc@736 1276
adam@1936 1277 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936 1278 ctx->could_write_db = n;
adam@1936 1279 }
adam@1936 1280
adam@2056 1281 void uw_set_at_most_one_query(uw_context ctx, int n) {
adam@2056 1282 ctx->at_most_one_query = n;
adam@2056 1283 }
adam@2056 1284
adamc@667 1285
adam@1369 1286 static void uw_buffer_check_ctx(uw_context ctx, const char *kind, uw_buffer *b, size_t extra, const char *desc) {
adamc@666 1287 if (b->back - b->front < extra) {
adamc@666 1288 size_t desired = b->front - b->start + extra, next;
adamc@136 1289 char *new_heap;
adamc@136 1290
adamc@666 1291 next = b->back - b->start;
adamc@317 1292 if (next == 0)
adamc@317 1293 next = 1;
adamc@317 1294 for (; next < desired; next *= 2);
adamc@136 1295
adamc@1134 1296 if (next > b->max) {
adamc@1113 1297 if (desired <= b->max)
adamc@1113 1298 next = desired;
adamc@1113 1299 else
adamc@1113 1300 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134 1301 }
adamc@1113 1302
adamc@666 1303 new_heap = realloc(b->start, next);
adamc@666 1304 b->front = new_heap + (b->front - b->start);
adamc@666 1305 b->back = new_heap + next;
adamc@136 1306
adamc@667 1307 if (new_heap != b->start) {
adamc@666 1308 b->start = new_heap;
adam@1389 1309 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136 1310 }
adamc@136 1311
adamc@666 1312 b->start = new_heap;
adamc@136 1313 }
adamc@136 1314 }
adamc@136 1315
adamc@832 1316 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369 1317 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666 1318 }
adamc@666 1319
adamc@832 1320 char *uw_heap_front(uw_context ctx) {
adamc@832 1321 return ctx->heap.front;
adamc@832 1322 }
adamc@832 1323
adamc@832 1324 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832 1325 ctx->heap.front = fr;
adamc@832 1326 }
adamc@832 1327
adam@1782 1328 void uw_begin_initializing(uw_context ctx) {
adam@1782 1329 ctx->amInitializing = 1;
adam@1782 1330 }
adam@1782 1331
adam@1782 1332 void uw_end_initializing(uw_context ctx) {
adam@1782 1333 ctx->amInitializing = 0;
adam@1782 1334 }
adam@1782 1335
adam@2013 1336 static void align_heap(uw_context ctx) {
adam@2013 1337 size_t posn = ctx->heap.front - ctx->heap.start;
adam@2013 1338
adam@2017 1339 if (posn % sizeof(void *) != 0) {
adam@2017 1340 size_t bump = sizeof(void *) - posn % sizeof(void *);
adam@2013 1341 uw_check_heap(ctx, bump);
adam@2013 1342 ctx->heap.front += bump;
adam@2013 1343 }
adam@2013 1344 }
adam@2013 1345
adamc@311 1346 void *uw_malloc(uw_context ctx, size_t len) {
adam@2013 1347 // On some architectures, it's important that all word-sized memory accesses
adam@2013 1348 // be to word-aligned addresses, so we'll do a little bit of extra work here
adam@2013 1349 // in anticipation of a possible word-aligned access to the address we'll
adam@2013 1350 // return.
adam@2013 1351
adamc@136 1352 void *result;
adamc@136 1353
adam@1782 1354 if (ctx->amInitializing) {
adam@2017 1355 int error = posix_memalign(&result, sizeof(void *), len);
adam@2013 1356
adam@2013 1357 if (!error)
adam@1782 1358 return result;
adam@1782 1359 else
adam@2013 1360 uw_error(ctx, FATAL, "uw_malloc: posix_memalign() returns %d", error);
adam@1782 1361 } else {
adam@2013 1362 align_heap(ctx);
adam@2013 1363
adam@1782 1364 uw_check_heap(ctx, len);
adam@1782 1365
adam@1782 1366 result = ctx->heap.front;
adam@1782 1367 ctx->heap.front += len;
adam@1782 1368 return result;
adam@1782 1369 }
adamc@117 1370 }
adamc@117 1371
adamc@323 1372 void uw_begin_region(uw_context ctx) {
adam@2013 1373 align_heap(ctx);
adam@2013 1374
adamc@666 1375 regions *r = (regions *) ctx->heap.front;
adamc@323 1376
adamc@323 1377 uw_check_heap(ctx, sizeof(regions));
adamc@323 1378
adamc@666 1379 ctx->heap.front += sizeof(regions);
adamc@323 1380
adamc@323 1381 r->next = ctx->regions;
adamc@323 1382 ctx->regions = r;
adamc@323 1383 }
adamc@323 1384
adamc@323 1385 void uw_end_region(uw_context ctx) {
adamc@323 1386 regions *r = ctx->regions;
adamc@323 1387
adamc@323 1388 if (r == NULL)
adamc@323 1389 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323 1390
adamc@666 1391 ctx->heap.front = (char *) r;
adamc@323 1392 ctx->regions = r->next;
adamc@323 1393 }
adamc@323 1394
adamc@324 1395 void uw_memstats(uw_context ctx) {
adam@1369 1396 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369 1397 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369 1398 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369 1399 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324 1400 }
adamc@324 1401
adam@1915 1402 int uw_pagelen(uw_context ctx) {
adam@1915 1403 return ctx->page.front - ctx->page.start;
adam@1915 1404 }
adam@1915 1405
adamc@311 1406 int uw_send(uw_context ctx, int sock) {
adam@1949 1407 size_t target_length = (ctx->outHeaders.front - ctx->outHeaders.start) + 2 + (ctx->page.front - ctx->page.start);
adam@1949 1408
adam@1949 1409 if (ctx->output_buffer_size < target_length) {
adam@1949 1410 do {
adam@1949 1411 ctx->output_buffer_size *= 2;
adam@1949 1412 } while (ctx->output_buffer_size < target_length);
adam@1949 1413 ctx->output_buffer = realloc(ctx->output_buffer, ctx->output_buffer_size);
adam@1949 1414 }
adam@1949 1415
adam@1949 1416 memcpy(ctx->output_buffer, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adam@1949 1417 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start), "\r\n", 2);
adam@1949 1418 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start) + 2, ctx->page.start, ctx->page.front - ctx->page.start);
adam@1949 1419
adam@1949 1420 return uw_really_send(sock, ctx->output_buffer, target_length);
adamc@462 1421 }
adamc@462 1422
adamc@856 1423 int uw_print(uw_context ctx, int fd) {
adamc@856 1424 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856 1425
adamc@856 1426 if (n < 0)
adamc@856 1427 return n;
adamc@856 1428
adamc@856 1429 n = uw_really_write(fd, "\r\n", 2);
adamc@856 1430
adamc@856 1431 if (n < 0)
adamc@856 1432 return n;
adamc@856 1433
adamc@856 1434 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856 1435 }
adamc@856 1436
adamc@860 1437 int uw_output(uw_context ctx, int (*output)(void *data, char *buf, size_t len), void *data) {
adamc@860 1438 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860 1439
adamc@860 1440 if (n < 0)
adamc@860 1441 return n;
adamc@860 1442
adamc@860 1443 n = output(data, "\r\n", 2);
adamc@860 1444
adamc@860 1445 if (n < 0)
adamc@860 1446 return n;
adamc@860 1447
adamc@860 1448 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860 1449 }
adamc@860 1450
adamc@462 1451 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369 1452 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462 1453 }
adamc@462 1454
adamc@462 1455 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462 1456 int len = strlen(s);
adamc@462 1457
adamc@462 1458 uw_check_headers(ctx, len + 1);
adamc@666 1459 strcpy(ctx->outHeaders.front, s);
adamc@666 1460 ctx->outHeaders.front += len;
adamc@562 1461 }
adamc@562 1462
adam@1934 1463 int uw_has_contentLength(uw_context ctx) {
adam@1934 1464 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934 1465 }
adam@1934 1466
adamc@1110 1467 void uw_clear_headers(uw_context ctx) {
adam@1369 1468 uw_buffer_reset(&ctx->outHeaders);
adamc@1110 1469 }
adamc@1110 1470
adam@1932 1471 void uw_Basis_clear_page(uw_context ctx) {
adam@1932 1472 uw_buffer_reset(&ctx->page);
adam@1932 1473 }
adam@1932 1474
adamc@562 1475 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369 1476 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562 1477 }
adamc@562 1478
adamc@562 1479 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562 1480 int len = strlen(s);
adamc@562 1481
adamc@562 1482 uw_check_script(ctx, len + 1);
adamc@666 1483 strcpy(ctx->script.front, s);
adamc@666 1484 ctx->script.front += len;
adamc@562 1485 }
adamc@562 1486
adam@1446 1487 const char *uw_get_real_script(uw_context ctx) {
adam@1671 1488 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671 1489 uw_write_script(ctx, "sig=\"");
adam@1671 1490 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671 1491 uw_write_script(ctx, "\";");
adam@1671 1492 }
adam@1671 1493
adam@1446 1494 return ctx->script.start;
adam@1446 1495 }
adam@1446 1496
adamc@695 1497 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695 1498 if (s[0] == 0)
adamc@695 1499 return "";
adamc@695 1500 else {
adamc@695 1501 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695 1502 sprintf(r, " onload='%s'", s);
adamc@695 1503 return r;
adamc@695 1504 }
adamc@695 1505 }
adamc@695 1506
adamc@1042 1507 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042 1508 if (ctx->script_header[0] == 0)
adamc@1042 1509 return "";
adamc@1042 1510 else {
vshabanoff@1763 1511 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763 1512 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042 1513 return r;
adamc@1042 1514 }
adamc@1042 1515 }
adamc@1042 1516
adamc@694 1517 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736 1518 if (ctx->client == NULL) {
adamc@736 1519 if (ctx->needs_sig) {
adamc@1094 1520 char *sig = ctx->app->cookie_sig(ctx);
adamc@736 1521 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736 1522 sprintf(r, "sig=\"%s\";", sig);
adamc@736 1523 return r;
adamc@736 1524 }
adamc@736 1525 else
adamc@736 1526 return "";
adamc@736 1527 } else {
adamc@1094 1528 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094 1529 char *r = uw_malloc(ctx, 59 + 3 * INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736 1530 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552 1531 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552 1532 (ctx->isPost ? "true" : "false"),
adamc@682 1533 ctx->client->id,
adamc@682 1534 ctx->client->pass,
adamc@1094 1535 ctx->app->url_prefix,
adamc@1094 1536 ctx->app->timeout,
adamc@736 1537 ctx->needs_sig ? "sig=\"" : "",
adamc@736 1538 sig,
adamc@736 1539 ctx->needs_sig ? "\";" : "");
adamc@679 1540 return r;
adamc@668 1541 }
adamc@667 1542 }
adamc@667 1543
adamc@574 1544 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574 1545 char *r, *s2;
adamc@574 1546
adam@1446 1547 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574 1548
adamc@666 1549 r = s2 = ctx->heap.front;
adamc@574 1550 *s2++ = '"';
adamc@574 1551
adamc@574 1552 for (; *s; s++) {
adam@1286 1553 unsigned char c = *s;
adamc@574 1554
adamc@574 1555 switch (c) {
adamc@574 1556 case '"':
adamc@574 1557 strcpy(s2, "\\\"");
adamc@574 1558 s2 += 2;
adamc@574 1559 break;
adamc@1027 1560 case '\'':
adamc@1027 1561 strcpy(s2, "\\047");
adamc@1027 1562 s2 += 4;
adamc@1027 1563 break;
adamc@574 1564 case '\\':
adamc@574 1565 strcpy(s2, "\\\\");
adamc@574 1566 s2 += 2;
adamc@574 1567 break;
adam@1457 1568 case '<':
adam@1457 1569 strcpy(s2, "\\074");
adam@1457 1570 s2 += 4;
adam@1457 1571 break;
adamc@574 1572 default:
adam@1286 1573 if (isprint((int)c) || c >= 128)
adamc@574 1574 *s2++ = c;
adamc@574 1575 else {
adam@1429 1576 sprintf(s2, "\\%03o", c);
adamc@574 1577 s2 += 4;
adamc@574 1578 }
adamc@574 1579 }
adamc@574 1580 }
adamc@574 1581
adamc@574 1582 strcpy(s2, "\"");
adamc@910 1583 ctx->heap.front = s2 + 2;
adamc@574 1584 return r;
adamc@574 1585 }
adamc@574 1586
adam@1286 1587 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286 1588 unsigned char c = c1;
adamc@1025 1589 char *r, *s2;
adamc@1025 1590
adam@1446 1591 uw_check_heap(ctx, 7);
adamc@1025 1592
adamc@1025 1593 r = s2 = ctx->heap.front;
adamc@1025 1594 *s2++ = '"';
adamc@1025 1595
adamc@1025 1596 switch (c) {
adamc@1025 1597 case '"':
adamc@1025 1598 strcpy(s2, "\\\"");
adamc@1025 1599 s2 += 2;
adamc@1025 1600 break;
adamc@1027 1601 case '\'':
adamc@1027 1602 strcpy(s2, "\\047");
adamc@1027 1603 s2 += 4;
adamc@1027 1604 break;
adamc@1025 1605 case '\\':
adamc@1025 1606 strcpy(s2, "\\\\");
adamc@1025 1607 s2 += 2;
adamc@1025 1608 break;
adam@1457 1609 case '<':
adam@1457 1610 strcpy(s2, "\\074");
adam@1457 1611 s2 += 4;
adam@1457 1612 break;
adamc@1025 1613 default:
adam@1286 1614 if (isprint((int)c) || c >= 128)
adamc@1025 1615 *s2++ = c;
adamc@1025 1616 else {
adam@1429 1617 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025 1618 s2 += 4;
adamc@1025 1619 }
adamc@1025 1620 }
adamc@1025 1621
adamc@1025 1622 strcpy(s2, "\"");
adamc@1025 1623 ctx->heap.front = s2 + 2;
adamc@1025 1624 return r;
adamc@1025 1625 }
adamc@1025 1626
adamc@574 1627 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574 1628 char *r, *s2;
adamc@574 1629
adam@1446 1630 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574 1631
adamc@666 1632 r = s2 = ctx->script.front;
adamc@574 1633 *s2++ = '"';
adamc@574 1634
adamc@574 1635 for (; *s; s++) {
adam@1286 1636 unsigned char c = *s;
adamc@574 1637
adamc@574 1638 switch (c) {
adamc@577 1639 case '\'':
adamc@1027 1640 strcpy(s2, "\\");
adamc@574 1641 s2 += 2;
adamc@574 1642 break;
adamc@574 1643 case '\\':
adamc@574 1644 strcpy(s2, "\\\\");
adamc@574 1645 s2 += 2;
adamc@574 1646 break;
adam@1457 1647 case '<':
adam@1457 1648 strcpy(s2, "\\074");
adam@1457 1649 s2 += 4;
adam@1457 1650 break;
adamc@574 1651 default:
adam@1286 1652 if (isprint((int)c) || c >= 128)
adamc@574 1653 *s2++ = c;
adamc@574 1654 else {
adam@1429 1655 sprintf(s2, "\\%03o", c);
adamc@574 1656 s2 += 4;
adamc@574 1657 }
adamc@574 1658 }
adamc@574 1659 }
adamc@574 1660
adamc@574 1661 strcpy(s2, "\"");
adamc@666 1662 ctx->script.front = s2 + 1;
adamc@574 1663 return r;
adamc@574 1664 }
adamc@574 1665
adamc@682 1666 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1667 if (ctx->client == NULL || chn.cli != ctx->client->id)
adamc@682 1668 return "null";
adamc@682 1669 else {
adamc@682 1670 int len;
adamc@682 1671 char *r;
adamc@682 1672
adamc@682 1673 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1674 r = ctx->heap.front;
adamc@682 1675 sprintf(r, "%u%n", chn.chn, &len);
adamc@682 1676 ctx->heap.front += len+1;
adamc@682 1677 return r;
adamc@682 1678 }
adamc@682 1679 }
adamc@682 1680
adam@1446 1681 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577 1682 int len;
adamc@577 1683 size_t s_len = strlen(s);
adamc@562 1684
grrwlf@1998 1685 if(ctx->id < 0)
grrwlf@1998 1686 uw_error(ctx, FATAL, "Attempt to create client source using inappropriate context");
grrwlf@1998 1687
adam@1446 1688 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446 1689 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666 1690 ctx->script.front += len;
adamc@666 1691 strcpy(ctx->script.front, s);
adamc@666 1692 ctx->script.front += s_len;
adamc@970 1693 strcpy(ctx->script.front, "));");
adamc@972 1694 ctx->script.front += 3;
adamc@562 1695
adam@1446 1696 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446 1697 return r;
adam@1446 1698 }
adam@1446 1699
adam@1446 1700 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577 1701 int len;
adamc@577 1702 size_t s_len = strlen(s);
adamc@577 1703
adam@1446 1704 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446 1705 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666 1706 ctx->script.front += len;
adamc@666 1707 strcpy(ctx->script.front, s);
adamc@666 1708 ctx->script.front += s_len;
adamc@970 1709 strcpy(ctx->script.front, "));");
adamc@972 1710 ctx->script.front += 3;
adamc@577 1711
adamc@577 1712 return uw_unit_v;
adamc@577 1713 }
adamc@577 1714
adamc@311 1715 static void uw_check(uw_context ctx, size_t extra) {
adam@1369 1716 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117 1717 }
adamc@117 1718
adamc@311 1719 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666 1720 *(ctx->page.front)++ = c;
adam@1413 1721 *ctx->page.front = 0;
adamc@117 1722 }
adamc@117 1723
adamc@311 1724 void uw_writec(uw_context ctx, char c) {
adam@1413 1725 uw_check(ctx, 2);
adamc@311 1726 uw_writec_unsafe(ctx, c);
adamc@117 1727 }
adamc@117 1728
adam@2085 1729 void uw_Basis_writec(uw_context ctx, char c) {
adam@2085 1730 uw_writec(ctx, c);
adam@2085 1731 }
adam@2085 1732
adamc@311 1733 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117 1734 int len = strlen(s);
adamc@666 1735 memcpy(ctx->page.front, s, len);
adamc@666 1736 ctx->page.front += len;
adamc@117 1737 }
adamc@117 1738
adamc@311 1739 void uw_write(uw_context ctx, const char* s) {
adamc@311 1740 uw_check(ctx, strlen(s) + 1);
adamc@311 1741 uw_write_unsafe(ctx, s);
adamc@666 1742 *ctx->page.front = 0;
adamc@102 1743 }
adamc@106 1744
ziv@2204 1745 void uw_recordingStart(uw_context ctx) {
adam@2298 1746 if (ctx->numRecording == ctx->recordingCapacity) {
adam@2298 1747 ++ctx->recordingCapacity;
adam@2298 1748 ctx->recordingOffsets = realloc(ctx->recordingOffsets, sizeof(int) * ctx->recordingCapacity);
ziv@2262 1749 }
adam@2298 1750 ctx->recordingOffsets[ctx->numRecording] = ctx->page.front - ctx->page.start;
adam@2298 1751 ++ctx->numRecording;
ziv@2204 1752 }
ziv@2204 1753
ziv@2204 1754 char *uw_recordingRead(uw_context ctx) {
adam@2298 1755 char *recording = ctx->page.start + ctx->recordingOffsets[--ctx->numRecording];
ziv@2262 1756 return strdup(recording);
ziv@2204 1757 }
ziv@2204 1758
adamc@311 1759 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136 1760 char *result;
adamc@136 1761 int len;
adamc@311 1762 uw_check_heap(ctx, INTS_MAX);
adamc@666 1763 result = ctx->heap.front;
adamc@276 1764 sprintf(result, "%lld%n", n, &len);
adamc@666 1765 ctx->heap.front += len+1;
adamc@136 1766 return result;
adamc@106 1767 }
adamc@106 1768
adamc@311 1769 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136 1770 char *result;
adamc@136 1771 int len;
adamc@311 1772 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1773 result = ctx->heap.front;
adam@1920 1774 sprintf(result, "%.16g%n", n, &len);
adamc@666 1775 ctx->heap.front += len+1;
adamc@136 1776 return result;
adamc@106 1777 }
adamc@106 1778
adamc@311 1779 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136 1780 int len = strlen(s);
adamc@136 1781 char *result, *p;
adamc@311 1782 uw_check_heap(ctx, len * 6 + 1);
adamc@136 1783
adamc@666 1784 result = p = ctx->heap.front;
adamc@136 1785
adamc@136 1786 for (; *s; s++) {
adamc@1054 1787 unsigned char c = *s;
adamc@136 1788
adamc@136 1789 if (c == '"') {
adamc@136 1790 strcpy(p, "&quot;");
adamc@136 1791 p += 6;
adamc@136 1792 } else if (c == '&') {
adamc@136 1793 strcpy(p, "&amp;");
adamc@136 1794 p += 5;
adamc@136 1795 }
adamc@1059 1796 else
adamc@136 1797 *p++ = c;
adamc@136 1798 }
adamc@136 1799
adamc@137 1800 *p++ = 0;
adamc@666 1801 ctx->heap.front = p;
adamc@136 1802 return result;
adamc@106 1803 }
adamc@106 1804
adamc@1011 1805 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011 1806 char *result, *p;
adamc@1011 1807 uw_check_heap(ctx, 7);
adamc@1011 1808
adamc@1011 1809 result = p = ctx->heap.front;
adamc@1011 1810
adamc@1011 1811 if (c == '"') {
adamc@1011 1812 strcpy(p, "&quot;");
adamc@1011 1813 p += 6;
adamc@1011 1814 } else if (c == '&') {
adamc@1011 1815 strcpy(p, "&amp;");
adamc@1011 1816 p += 5;
adamc@1011 1817 }
adamc@1059 1818 else
adamc@1011 1819 *p++ = c;
adamc@1011 1820
adamc@1011 1821 *p++ = 0;
adamc@1011 1822 ctx->heap.front = p;
adamc@1011 1823 return result;
adamc@1011 1824 }
adamc@1011 1825
adamc@721 1826 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721 1827 return s;
adamc@721 1828 }
adamc@721 1829
adamc@311 1830 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117 1831 int len;
adamc@117 1832
adamc@666 1833 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1834 ctx->page.front += len;
adamc@106 1835 }
adamc@106 1836
adamc@428 1837 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311 1838 uw_check(ctx, INTS_MAX);
adamc@311 1839 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428 1840
adamc@428 1841 return uw_unit_v;
adamc@106 1842 }
adamc@106 1843
adamc@428 1844 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117 1845 int len;
adamc@117 1846
adamc@311 1847 uw_check(ctx, FLOATS_MAX);
adamc@666 1848 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1849 ctx->page.front += len;
adamc@428 1850
adamc@428 1851 return uw_unit_v;
adamc@117 1852 }
adamc@117 1853
adamc@428 1854 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311 1855 uw_check(ctx, strlen(s) * 6);
adamc@117 1856
adamc@106 1857 for (; *s; s++) {
adamc@1054 1858 unsigned char c = *s;
adamc@106 1859
adamc@106 1860 if (c == '"')
adamc@311 1861 uw_write_unsafe(ctx, "&quot;");
adamc@136 1862 else if (c == '&')
adamc@311 1863 uw_write_unsafe(ctx, "&amp;");
adamc@1059 1864 else
adamc@311 1865 uw_writec_unsafe(ctx, c);
adamc@106 1866 }
adamc@428 1867
adamc@428 1868 return uw_unit_v;
adamc@106 1869 }
adamc@120 1870
adamc@1011 1871 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011 1872 uw_check(ctx, 6);
adamc@1011 1873
adamc@1011 1874 if (c == '"')
adamc@1011 1875 uw_write_unsafe(ctx, "&quot;");
adamc@1011 1876 else if (c == '&')
adamc@1011 1877 uw_write_unsafe(ctx, "&amp;");
adamc@1059 1878 else
adamc@1011 1879 uw_writec_unsafe(ctx, c);
adamc@1011 1880
adamc@1011 1881 return uw_unit_v;
adamc@1011 1882 }
adamc@1011 1883
adamc@120 1884
adamc@311 1885 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137 1886 int len;
adamc@137 1887 char *r;
adamc@137 1888
adamc@311 1889 uw_check_heap(ctx, INTS_MAX);
adamc@666 1890 r = ctx->heap.front;
adamc@276 1891 sprintf(r, "%lld%n", n, &len);
adamc@666 1892 ctx->heap.front += len+1;
adamc@137 1893 return r;
adamc@120 1894 }
adamc@120 1895
adamc@682 1896 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1897 if (ctx->client == NULL || chn.cli != ctx->client->id)
adamc@682 1898 return "";
adamc@682 1899 else {
adamc@682 1900 int len;
adamc@682 1901 char *r;
adamc@679 1902
adamc@682 1903 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1904 r = ctx->heap.front;
adamc@682 1905 sprintf(r, "%u%n", chn.chn, &len);
adamc@682 1906 ctx->heap.front += len+1;
adamc@682 1907 return r;
adamc@682 1908 }
adamc@679 1909 }
adamc@679 1910
adamc@311 1911 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137 1912 int len;
adamc@137 1913 char *r;
adamc@137 1914
adamc@311 1915 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1916 r = ctx->heap.front;
adamc@137 1917 sprintf(r, "%g%n", n, &len);
adamc@666 1918 ctx->heap.front += len+1;
adamc@137 1919 return r;
adamc@120 1920 }
adamc@120 1921
adamc@311 1922 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137 1923 char *r, *p;
adamc@137 1924
adamc@925 1925 if (s[0] == '\0')
adamc@925 1926 return "_";
adamc@925 1927
adamc@925 1928 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925 1929
adamc@925 1930 r = p = ctx->heap.front;
adamc@925 1931 if (s[0] == '_')
adamc@925 1932 *p++ = '_';
adamc@925 1933
adamc@925 1934 for (; *s; s++) {
adamc@1087 1935 unsigned char c = *s;
adamc@137 1936
adamc@137 1937 if (c == ' ')
adamc@137 1938 *p++ = '+';
adamc@137 1939 else if (isalnum(c))
adamc@137 1940 *p++ = c;
adamc@137 1941 else {
adamc@1259 1942 sprintf(p, ".%02X", c);
adamc@137 1943 p += 3;
adamc@137 1944 }
adamc@137 1945 }
adamc@137 1946
adamc@137 1947 *p++ = 0;
adamc@666 1948 ctx->heap.front = p;
adamc@137 1949 return r;
adamc@120 1950 }
adamc@120 1951
adamc@311 1952 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 1953 if (b == uw_Basis_False)
adamc@186 1954 return "0";
adamc@186 1955 else
adamc@186 1956 return "1";
adamc@186 1957 }
adamc@186 1958
adam@1620 1959 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620 1960 char *r;
adam@1620 1961 int len;
adam@1620 1962 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620 1963 r = ctx->heap.front;
adam@1620 1964 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620 1965 ctx->heap.front += len+1;
adam@1620 1966 return r;
adam@1620 1967 }
adam@1620 1968
adamc@311 1969 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120 1970 int len;
adamc@120 1971
adamc@666 1972 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1973 ctx->page.front += len;
adamc@120 1974 }
adamc@120 1975
adamc@428 1976 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311 1977 uw_check(ctx, INTS_MAX);
adamc@311 1978 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428 1979
adamc@428 1980 return uw_unit_v;
adamc@120 1981 }
adamc@120 1982
adamc@682 1983 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1984 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682 1985 int len;
phurst@1981 1986
adamc@682 1987 uw_check(ctx, INTS_MAX + 1);
adamc@682 1988 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682 1989 ctx->page.front += len;
adamc@682 1990 }
phurst@1981 1991
adamc@679 1992 return uw_unit_v;
adamc@679 1993 }
adamc@679 1994
adamc@428 1995 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120 1996 int len;
adamc@120 1997
adamc@311 1998 uw_check(ctx, FLOATS_MAX);
adamc@666 1999 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 2000 ctx->page.front += len;
adamc@428 2001
adamc@428 2002 return uw_unit_v;
adamc@120 2003 }
adamc@120 2004
adamc@488 2005 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376 2006 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488 2007 }
adamc@488 2008
adam@1404 2009 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404 2010 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404 2011 }
adam@1404 2012
adamc@428 2013 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925 2014 if (s[0] == '\0') {
adamc@925 2015 uw_check(ctx, 1);
adamc@925 2016 uw_writec_unsafe(ctx, '_');
adamc@925 2017 return uw_unit_v;
adamc@925 2018 }
adamc@925 2019
adamc@925 2020 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925 2021
adamc@925 2022 if (s[0] == '_')
adamc@925 2023 uw_writec_unsafe(ctx, '_');
adamc@120 2024
adamc@120 2025 for (; *s; s++) {
adamc@1087 2026 unsigned char c = *s;
adamc@120 2027
adamc@120 2028 if (c == ' ')
adamc@311 2029 uw_writec_unsafe(ctx, '+');
adamc@120 2030 else if (isalnum(c))
adamc@311 2031 uw_writec_unsafe(ctx, c);
adamc@120 2032 else {
adamc@1259 2033 sprintf(ctx->page.front, ".%02X", c);
adamc@666 2034 ctx->page.front += 3;
adamc@120 2035 }
adamc@120 2036 }
adamc@428 2037
adamc@428 2038 return uw_unit_v;
adamc@120 2039 }
adamc@120 2040
adamc@428 2041 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311 2042 if (b == uw_Basis_False)
adamc@311 2043 uw_writec(ctx, '0');
adamc@186 2044 else
adamc@311 2045 uw_writec(ctx, '1');
adamc@428 2046
adamc@428 2047 return uw_unit_v;
adamc@186 2048 }
adamc@186 2049
adam@1620 2050 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620 2051 int len;
phurst@1981 2052
adam@1620 2053 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620 2054 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620 2055 ctx->page.front += len;
phurst@1981 2056
adam@1620 2057 return uw_unit_v;
adam@1620 2058 }
adam@1620 2059
adamc@120 2060
adamc@311 2061 static char *uw_unurlify_advance(char *s) {
adamc@144 2062 char *new_s = strchr(s, '/');
adamc@120 2063
adamc@120 2064 if (new_s)
adamc@120 2065 *new_s++ = 0;
adamc@120 2066 else
adamc@144 2067 new_s = strchr(s, 0);
adamc@144 2068
adamc@144 2069 return new_s;
adamc@144 2070 }
adamc@144 2071
adamc@311 2072 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311 2073 char *new_s = uw_unurlify_advance(*s);
adamc@311 2074 uw_Basis_int r;
adamc@120 2075
adamc@276 2076 r = atoll(*s);
adamc@120 2077 *s = new_s;
adamc@120 2078 return r;
adamc@120 2079 }
adamc@120 2080
adamc@311 2081 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311 2082 char *new_s = uw_unurlify_advance(*s);
adamc@311 2083 uw_Basis_float r;
adamc@120 2084
adamc@120 2085 r = atof(*s);
adamc@120 2086 *s = new_s;
adamc@120 2087 return r;
adamc@120 2088 }
adamc@120 2089
adamc@488 2090 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365 2091 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365 2092 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365 2093 return r;
adamc@488 2094 }
adamc@488 2095
adamc@1023 2096 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char *r, char *s) {
adamc@927 2097 char *s1, *s2 = s;
adamc@144 2098 int n;
adamc@136 2099
adamc@1023 2100 if (!fromClient) {
adamc@1023 2101 if (*s2 == '_')
adamc@1023 2102 ++s2;
adamc@1259 2103 else if ((s2[0] == '%' || s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' || s2[2] == 'F'))
adamc@1023 2104 s2 += 3;
adamc@1023 2105 }
adamc@925 2106
adamc@927 2107 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087 2108 unsigned char c = *s2;
adamc@136 2109
adamc@136 2110 switch (c) {
adamc@136 2111 case '+':
adamc@136 2112 *s1 = ' ';
adamc@136 2113 break;
adamc@136 2114 case '%':
adamc@169 2115 if (s2[1] == 0)
adamc@311 2116 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169 2117 if (s2[2] == 0)
adamc@311 2118 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169 2119 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444 2120 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136 2121 *s1 = n;
adamc@136 2122 s2 += 2;
adamc@136 2123 break;
adamc@1259 2124 case '.':
adamc@1259 2125 if (!fromClient) {
adamc@1259 2126 if (s2[1] == 0)
adamc@1259 2127 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259 2128 if (s2[2] == 0)
adamc@1259 2129 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259 2130 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444 2131 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259 2132 *s1 = n;
adamc@1259 2133 s2 += 2;
adamc@1259 2134 break;
adamc@1259 2135 }
adamc@136 2136 default:
adamc@136 2137 *s1 = c;
adamc@136 2138 }
adamc@136 2139 }
adamc@136 2140 *s1++ = 0;
adamc@144 2141 return s1;
adamc@144 2142 }
adamc@144 2143
adamc@311 2144 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311 2145 char *new_s = uw_unurlify_advance(*s);
adamc@311 2146 uw_Basis_bool r;
phurst@1981 2147
adamc@186 2148 if (*s[0] == 0 || !strcmp(*s, "0") || !strcmp(*s, "off"))
adamc@311 2149 r = uw_Basis_False;
adamc@186 2150 else
adamc@311 2151 r = uw_Basis_True;
adamc@186 2152
adamc@186 2153 *s = new_s;
adamc@186 2154 return r;
adamc@186 2155 }
adamc@186 2156
adamc@311 2157 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311 2158 char *new_s = uw_unurlify_advance(*s);
adamc@1134 2159 char *r;
adamc@1134 2160 int len;
adamc@144 2161
adamc@200 2162 len = strlen(*s);
adamc@311 2163 uw_check_heap(ctx, len + 1);
adamc@144 2164
adamc@666 2165 r = ctx->heap.front;
adamc@1023 2166 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023 2167 *s = new_s;
adamc@1023 2168 return r;
adamc@1023 2169 }
adamc@1023 2170
adamc@1109 2171 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109 2172 *s = uw_unurlify_advance(*s);
adamc@1109 2173 return uw_unit_v;
adamc@1109 2174 }
adamc@1109 2175
adamc@1023 2176 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023 2177 char *new_s = uw_unurlify_advance(*s);
adamc@1134 2178 char *r;
adamc@1134 2179 int len;
adamc@1023 2180
adamc@1023 2181 len = strlen(*s);
adamc@1023 2182 uw_check_heap(ctx, len + 1);
adamc@1023 2183
adamc@1023 2184 r = ctx->heap.front;
adamc@1023 2185 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136 2186 *s = new_s;
adamc@136 2187 return r;
adamc@120 2188 }
adamc@135 2189
adamc@135 2190
adamc@311 2191 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286 2192 int len;
adamc@286 2193 char *r;
adamc@286 2194
adamc@311 2195 uw_check_heap(ctx, INTS_MAX);
adamc@666 2196 r = ctx->heap.front;
adamc@286 2197 sprintf(r, "%lld%n", n, &len);
adamc@666 2198 ctx->heap.front += len+1;
adamc@286 2199 return r;
adamc@286 2200 }
adamc@286 2201
adamc@428 2202 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286 2203 int len;
adamc@286 2204
adamc@311 2205 uw_check(ctx, INTS_MAX);
adamc@666 2206 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 2207 ctx->page.front += len;
phurst@1981 2208
adamc@428 2209 return uw_unit_v;
adamc@286 2210 }
adamc@286 2211
adam@1358 2212 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358 2213 unsigned int n = ch;
adam@1358 2214 int len;
adam@1358 2215 char *r;
adam@1358 2216
adam@1358 2217 uw_check_heap(ctx, INTS_MAX+3);
adam@1358 2218 r = ctx->heap.front;
adam@1358 2219 sprintf(r, "&#%u;%n", n, &len);
adam@1358 2220 ctx->heap.front += len+1;
adam@1358 2221 return r;
adam@1358 2222 }
adam@1358 2223
adam@1358 2224 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358 2225 unsigned int n = ch;
adam@1358 2226 int len;
adam@1358 2227
adam@1358 2228 uw_check(ctx, INTS_MAX+3);
adam@1358 2229 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358 2230 ctx->page.front += len;
adam@1358 2231 return uw_unit_v;
adam@1358 2232 }
adam@1358 2233
adamc@311 2234 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286 2235 int len;
adamc@286 2236 char *r;
adamc@286 2237
adamc@311 2238 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 2239 r = ctx->heap.front;
adamc@286 2240 sprintf(r, "%g%n", n, &len);
adamc@666 2241 ctx->heap.front += len+1;
adamc@286 2242 return r;
adamc@286 2243 }
adamc@286 2244
adamc@428 2245 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286 2246 int len;
adamc@286 2247
adamc@311 2248 uw_check(ctx, FLOATS_MAX);
adamc@666 2249 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 2250 ctx->page.front += len;
adamc@428 2251
adamc@428 2252 return uw_unit_v;
adamc@286 2253 }
adamc@286 2254
adam@1365 2255 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360 2256 int len;
adam@1360 2257 char *r;
adam@1360 2258
adam@1360 2259 uw_check_heap(ctx, INTS_MAX);
adam@1360 2260 r = ctx->heap.front;
adamc@1377 2261 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360 2262 ctx->heap.front += len+1;
adam@1360 2263 return r;
adam@1360 2264 }
adam@1360 2265
adam@1365 2266 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360 2267 int len;
adam@1360 2268
adam@1360 2269 uw_check(ctx, INTS_MAX);
adam@1360 2270 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360 2271 ctx->page.front += len;
phurst@1981 2272
adam@1360 2273 return uw_unit_v;
adam@1360 2274 }
adam@1360 2275
adam@1444 2276 char *uw_Basis_htmlifyString(uw_context ctx, const char *s) {
adamc@137 2277 char *r, *s2;
adamc@137 2278
adamc@311 2279 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137 2280
adamc@666 2281 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054 2282 unsigned char c = *s;
adamc@137 2283
adamc@137 2284 switch (c) {
adamc@137 2285 case '<':
adamc@137 2286 strcpy(s2, "&lt;");
adamc@137 2287 s2 += 4;
adamc@137 2288 break;
adamc@137 2289 case '&':
adamc@137 2290 strcpy(s2, "&amp;");
adamc@137 2291 s2 += 5;
adamc@137 2292 break;
adamc@137 2293 default:
adamc@1059 2294 *s2++ = c;
adamc@137 2295 }
adamc@137 2296 }
adamc@137 2297
adamc@137 2298 *s2++ = 0;
adamc@666 2299 ctx->heap.front = s2;
adamc@137 2300 return r;
adamc@135 2301 }
adamc@135 2302
adamc@428 2303 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321 2304 uw_check(ctx, strlen(s) * 6);
adamc@135 2305
adamc@135 2306 for (; *s; s++) {
adamc@1054 2307 unsigned char c = *s;
adamc@135 2308
adamc@135 2309 switch (c) {
adamc@135 2310 case '<':
adamc@311 2311 uw_write_unsafe(ctx, "&lt;");
adamc@135 2312 break;
adamc@135 2313 case '&':
adamc@311 2314 uw_write_unsafe(ctx, "&amp;");
adamc@135 2315 break;
adamc@135 2316 default:
adamc@1059 2317 uw_writec_unsafe(ctx, c);
adamc@135 2318 }
adamc@135 2319 }
adamc@428 2320
adamc@428 2321 return uw_unit_v;
adamc@135 2322 }
adamc@180 2323
adamc@311 2324 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 2325 if (b == uw_Basis_False)
adamc@286 2326 return "False";
adamc@286 2327 else
adamc@286 2328 return "True";
adamc@286 2329 }
adamc@286 2330
adamc@428 2331 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311 2332 if (b == uw_Basis_False) {
adamc@311 2333 uw_check(ctx, 6);
adamc@666 2334 strcpy(ctx->page.front, "False");
adamc@666 2335 ctx->page.front += 5;
adamc@286 2336 } else {
adamc@311 2337 uw_check(ctx, 5);
adamc@666 2338 strcpy(ctx->page.front, "True");
adamc@666 2339 ctx->page.front += 4;
adamc@286 2340 }
adamc@428 2341
adamc@428 2342 return uw_unit_v;
adamc@286 2343 }
adamc@286 2344
adamc@436 2345 #define TIME_FMT "%x %X"
adamc@438 2346 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632 2347 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436 2348
adam@1629 2349 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629 2350
adamc@436 2351 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629 2352 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436 2353 }
adamc@436 2354
adamc@436 2355 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629 2356 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436 2357 }
adamc@436 2358
adam@1446 2359 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446 2360 int len;
adam@1446 2361 char *r;
adam@1446 2362
adam@1446 2363 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446 2364 r = ctx->heap.front;
adam@1446 2365 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446 2366 ctx->heap.front += len+1;
adam@1446 2367 return r;
adam@1446 2368 }
adam@1446 2369
adam@1446 2370 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446 2371 int len;
adam@1446 2372
adam@1446 2373 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446 2374 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446 2375 ctx->page.front += len;
phurst@1981 2376
adam@1446 2377 return uw_unit_v;
adam@1446 2378 }
adam@1446 2379
adamc@821 2380 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388 2381 while (n >= 0) {
adam@1388 2382 if (*s == 0)
adam@1388 2383 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388 2384
adam@1388 2385 if (n == 0)
adam@1388 2386 return *s;
adam@1388 2387
adam@1388 2388 --n;
adam@1388 2389 ++s;
adam@1388 2390 }
adam@1388 2391
adam@1388 2392 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821 2393 }
adamc@821 2394
adamc@821 2395 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388 2396 while (n >= 0) {
adam@1388 2397 if (*s == 0 || n == 0)
adam@1388 2398 return s;
adam@1388 2399
adam@1388 2400 --n;
adam@1388 2401 ++s;
adam@1388 2402 }
adam@1388 2403
adam@1388 2404 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821 2405 }
adamc@821 2406
adamc@828 2407 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828 2408 return strlen(s);
adamc@828 2409 }
adamc@828 2410
adam@1388 2411 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388 2412 while (n > 0) {
adam@1388 2413 if (*s == 0)
adam@1388 2414 return uw_Basis_False;
adam@1388 2415
adam@1388 2416 --n;
adam@1388 2417 ++s;
adam@1388 2418 }
adam@1388 2419
adam@1388 2420 return uw_Basis_True;
adam@1388 2421 }
adam@1388 2422
adamc@829 2423 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829 2424 return strchr(s, ch);
adamc@829 2425 }
adamc@829 2426
adamc@831 2427 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831 2428 return strcspn(s, chs);
adamc@831 2429 }
adamc@831 2430
adamc@829 2431 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829 2432 uw_Basis_string r = strchr(s, ch);
adamc@829 2433 if (r == NULL)
adamc@829 2434 return NULL;
adamc@829 2435 else {
adamc@829 2436 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829 2437 *nr = r - s;
adamc@829 2438 return nr;
adamc@829 2439 }
adamc@829 2440 }
adamc@829 2441
adam@1390 2442 uw_Basis_int *uw_Basis_strsindex(uw_context ctx, const char *haystack, const char *needle) {
adam@1390 2443 uw_Basis_string r = strstr(haystack, needle);
adam@1390 2444 if (r == NULL)
adam@1390 2445 return NULL;
adam@1390 2446 else {
adam@1390 2447 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390 2448 *nr = r - haystack;
adam@1390 2449 return nr;
adam@1390 2450 }
adam@1390 2451 }
adam@1390 2452
adamc@311 2453 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828 2454 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180 2455 char *s;
adamc@180 2456
adamc@311 2457 uw_check_heap(ctx, len);
adamc@180 2458
adamc@666 2459 s = ctx->heap.front;
adamc@180 2460
adamc@180 2461 strcpy(s, s1);
adamc@180 2462 strcat(s, s2);
adamc@666 2463 ctx->heap.front += len;
adamc@180 2464
adamc@180 2465 return s;
adamc@180 2466 }
adamc@278 2467
adamc@829 2468 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829 2469 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829 2470
adamc@829 2471 if (start < 0)
adamc@829 2472 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829 2473 if (len < 0)
adamc@829 2474 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829 2475 if (start + len > full_len)
adamc@829 2476 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829 2477
adamc@829 2478 if (start + len == full_len)
adamc@829 2479 return &s[start];
adamc@829 2480 else {
adamc@829 2481 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959 2482 memcpy(r, s+start, len);
adamc@829 2483 r[len] = 0;
adamc@829 2484 return r;
adamc@829 2485 }
phurst@1981 2486
adamc@829 2487 }
adamc@829 2488
adamc@1023 2489 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023 2490 char *r;
adamc@1023 2491
adamc@1023 2492 uw_check_heap(ctx, 2);
adamc@1023 2493 r = ctx->heap.front;
adamc@1023 2494 r[0] = ch;
adamc@1023 2495 r[1] = 0;
adamc@1023 2496
adamc@1023 2497 ctx->heap.front += 2;
adamc@1023 2498
adamc@1023 2499 return r;
adamc@1023 2500 }
adamc@1023 2501
adamc@737 2502 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828 2503 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278 2504 char *s;
adamc@278 2505
adamc@311 2506 uw_check_heap(ctx, len);
adamc@278 2507
adamc@666 2508 s = ctx->heap.front;
adamc@278 2509
adamc@278 2510 strcpy(s, s1);
adamc@666 2511 ctx->heap.front += len;
adamc@278 2512
adamc@278 2513 return s;
adamc@278 2514 }
adamc@280 2515
adam@1295 2516 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295 2517 if (ctx->error_message[0]) {
adam@1295 2518 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295 2519 ctx->error_message[0] = 0;
adam@1295 2520 return s;
adam@1295 2521 } else
adam@1295 2522 return NULL;
adam@1295 2523 }
adam@1295 2524
adamc@737 2525 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493 2526 if (s1)
adamc@737 2527 return uw_strdup(ctx, s1);
adamc@493 2528 else
adamc@493 2529 return NULL;
adamc@493 2530 }
adamc@493 2531
adamc@742 2532 char *uw_memdup(uw_context ctx, const char *p, size_t len) {
adamc@742 2533 char *r = uw_malloc(ctx, len);
adamc@742 2534 memcpy(r, p, len);
adamc@742 2535 return r;
adamc@742 2536 }
adamc@280 2537
adamc@879 2538 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879 2539
adamc@311 2540 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281 2541 int len;
adamc@281 2542 char *r;
adamc@281 2543
adamc@311 2544 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666 2545 r = ctx->heap.front;
adamc@879 2546 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666 2547 ctx->heap.front += len+1;
adamc@281 2548 return r;
adamc@281 2549 }
adamc@281 2550
adamc@467 2551 char *uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int *n) {
adamc@467 2552 if (n == NULL)
adamc@467 2553 return "NULL";
adamc@467 2554 else
adamc@467 2555 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467 2556 }
adamc@467 2557
adam@1920 2558 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879 2559
adamc@311 2560 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281 2561 int len;
adamc@281 2562 char *r;
adamc@281 2563
adamc@311 2564 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666 2565 r = ctx->heap.front;
adamc@879 2566 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666 2567 ctx->heap.front += len+1;
adamc@281 2568 return r;
adamc@281 2569 }
adamc@281 2570
adamc@467 2571 char *uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float *n) {
adamc@467 2572 if (n == NULL)
adamc@467 2573 return "NULL";
adamc@467 2574 else
adamc@467 2575 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467 2576 }
adamc@467 2577
adam@1834 2578 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879 2579 char *uw_sqlsuffixString = "::text";
adamc@1011 2580 char *uw_sqlsuffixChar = "::char";
adamc@281 2581
adamc@311 2582 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280 2583 char *r, *s2;
adamc@280 2584
adamc@879 2585 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280 2586
adamc@666 2587 r = s2 = ctx->heap.front;
adamc@879 2588 if (uw_Estrings)
adamc@879 2589 *s2++ = 'E';
adamc@280 2590 *s2++ = '\'';
adamc@280 2591
adamc@280 2592 for (; *s; s++) {
adamc@280 2593 char c = *s;
adamc@280 2594
adamc@280 2595 switch (c) {
adamc@280 2596 case '\'':
adamc@885 2597 if (uw_Estrings)
adamc@885 2598 strcpy(s2, "\\'");
adamc@885 2599 else
adamc@885 2600 strcpy(s2, "''");
adamc@280 2601 s2 += 2;
adamc@280 2602 break;
adamc@280 2603 case '\\':
adamc@885 2604 if (uw_Estrings) {
adamc@885 2605 strcpy(s2, "\\\\");
adamc@885 2606 s2 += 2;
adamc@885 2607 } else
adamc@885 2608 *s2++ = '\\';
adamc@280 2609 break;
adamc@280 2610 default:
adamc@1150 2611 if (isprint((int)c))
adamc@280 2612 *s2++ = c;
adamc@879 2613 else if (uw_Estrings) {
adam@1857 2614 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280 2615 s2 += 4;
adamc@280 2616 }
adamc@879 2617 else
adam@1689 2618 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280 2619 }
adamc@280 2620 }
adamc@280 2621
adamc@879 2622 *s2++ = '\'';
adamc@879 2623 strcpy(s2, uw_sqlsuffixString);
adamc@879 2624 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280 2625 return r;
adamc@280 2626 }
adamc@281 2627
adamc@1011 2628 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011 2629 char *r, *s2;
adamc@1011 2630
adamc@1011 2631 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011 2632
adamc@1011 2633 r = s2 = ctx->heap.front;
adamc@1011 2634 if (uw_Estrings)
adamc@1011 2635 *s2++ = 'E';
adamc@1011 2636 *s2++ = '\'';
adamc@1011 2637
adamc@1011 2638 switch (c) {
adamc@1011 2639 case '\'':
adamc@1011 2640 if (uw_Estrings)
adamc@1011 2641 strcpy(s2, "\\'");
adamc@1011 2642 else
adamc@1011 2643 strcpy(s2, "''");
adamc@1011 2644 s2 += 2;
adamc@1011 2645 break;
adamc@1011 2646 case '\\':
adamc@1011 2647 if (uw_Estrings) {
adamc@1011 2648 strcpy(s2, "\\\\");
adamc@1011 2649 s2 += 2;
adamc@1011 2650 } else
adamc@1011 2651 *s2++ = '\\';
adamc@1011 2652 break;
adamc@1011 2653 default:
adamc@1150 2654 if (isprint((int)c))
adamc@1011 2655 *s2++ = c;
adamc@1011 2656 else if (uw_Estrings) {
adam@1857 2657 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011 2658 s2 += 4;
adamc@1011 2659 }
adamc@1011 2660 else
adamc@1011 2661 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011 2662 }
adamc@1011 2663
adamc@1011 2664 *s2++ = '\'';
adamc@1011 2665 strcpy(s2, uw_sqlsuffixChar);
adamc@1011 2666 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011 2667 return r;
adamc@1011 2668 }
adamc@1011 2669
adamc@879 2670 char *uw_sqlsuffixBlob = "::bytea";
adamc@879 2671
adam@1867 2672 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737 2673 char *r, *s2;
adamc@737 2674 size_t i;
adamc@737 2675
adam@1867 2676 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737 2677
adamc@737 2678 r = s2 = ctx->heap.front;
adamc@879 2679 if (uw_Estrings)
adamc@879 2680 *s2++ = 'E';
adam@1867 2681 else
adam@1867 2682 *s2++ = 'X';
adamc@737 2683 *s2++ = '\'';
adamc@737 2684
adamc@737 2685 for (i = 0; i < b.size; ++i) {
adam@1867 2686 unsigned char c = b.data[i];
adam@1867 2687
adam@1867 2688 if (uw_Estrings) {
adam@1867 2689 switch (c) {
adam@1867 2690 case '\'':
adamc@885 2691 strcpy(s2, "\\'");
adam@1867 2692 s2 += 2;
adam@1867 2693 break;
adam@1867 2694 case '\\':
adamc@885 2695 strcpy(s2, "\\\\\\\\");
adamc@885 2696 s2 += 4;
adam@1867 2697 break;
adam@1867 2698 default:
adam@1867 2699 if (isprint((int)c))
adam@1867 2700 *s2++ = c;
adam@1867 2701 else {
adam@1867 2702 sprintf(s2, "\\\\%03o", c);
adam@1867 2703 s2 += 5;
adam@1867 2704 }
adamc@737 2705 }
adam@1867 2706 } else {
adam@1867 2707 sprintf(s2, "%02X", c);
adam@1867 2708 s2 += 2;
adamc@737 2709 }
phurst@1981 2710 }
adamc@737 2711
adamc@879 2712 *s2++ = '\'';
adamc@879 2713 strcpy(s2, uw_sqlsuffixBlob);
adamc@879 2714 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737 2715 return r;
adamc@737 2716 }
adamc@737 2717
adamc@682 2718 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 2719 int len;
adamc@682 2720 char *r;
adamc@682 2721 unsigned long long combo = ((unsigned long long)chn.cli << 32) | chn.chn;
adamc@682 2722
adamc@682 2723 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682 2724 r = ctx->heap.front;
adamc@879 2725 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682 2726 ctx->heap.front += len+1;
adamc@682 2727 return r;
adamc@682 2728 }
adamc@682 2729
adamc@682 2730 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 2731 int len;
adamc@682 2732 char *r;
adamc@682 2733 unsigned long long combo = ((unsigned long long)chn.cli << 32) | chn.chn;
adamc@682 2734
adamc@682 2735 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 2736 r = ctx->heap.front;
adamc@682 2737 sprintf(r, "%lld%n", combo, &len);
adamc@682 2738 ctx->heap.front += len+1;
adamc@682 2739 return r;
adamc@682 2740 }
adamc@682 2741
adamc@879 2742 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879 2743
adamc@682 2744 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682 2745 int len;
adamc@682 2746 char *r;
adamc@682 2747
adamc@682 2748 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682 2749 r = ctx->heap.front;
adamc@879 2750 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682 2751 ctx->heap.front += len+1;
adamc@682 2752 return r;
adamc@682 2753 }
adamc@682 2754
adamc@682 2755 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682 2756 int len;
adamc@682 2757 char *r;
adamc@682 2758
adamc@682 2759 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 2760 r = ctx->heap.front;
adamc@682 2761 sprintf(r, "%u%n", cli, &len);
adamc@682 2762 ctx->heap.front += len+1;
adamc@682 2763 return r;
adamc@682 2764 }
adamc@682 2765
adamc@467 2766 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467 2767 if (s == NULL)
adamc@467 2768 return "NULL";
adamc@467 2769 else
adamc@467 2770 return uw_Basis_sqlifyString(ctx, s);
adamc@467 2771 }
adamc@467 2772
adamc@311 2773 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 2774 if (b == uw_Basis_False)
adamc@281 2775 return "FALSE";
adamc@281 2776 else
adamc@281 2777 return "TRUE";
adamc@281 2778 }
adamc@282 2779
adamc@467 2780 char *uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool *b) {
adamc@467 2781 if (b == NULL)
adamc@467 2782 return "NULL";
adamc@467 2783 else
adamc@467 2784 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467 2785 }
adamc@467 2786
adamc@439 2787 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439 2788 size_t len;
adamc@682 2789 char *r, *s;
adam@1392 2790 struct tm stm = {};
adam@1392 2791 stm.tm_isdst = -1;
adamc@682 2792
adam@1365 2793 if (localtime_r(&t.seconds, &stm)) {
adamc@682 2794 s = uw_malloc(ctx, TIMES_MAX);
adam@1364 2795 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834 2796 if (uw_sql_type_annotations) {
adam@1834 2797 if (t.microseconds) {
adam@1834 2798 r = uw_malloc(ctx, len + 21);
adam@1834 2799 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834 2800 } else {
adam@1834 2801 r = uw_malloc(ctx, len + 14);
adam@1834 2802 sprintf(r, "'%s'::timestamp", s);
adam@1834 2803 }
adam@1367 2804 } else {
adam@1834 2805 r = uw_malloc(ctx, len + 3);
adam@1834 2806 sprintf(r, "'%s'", s);
adam@1367 2807 }
adamc@682 2808 return r;
adamc@682 2809 } else
adamc@682 2810 return "<Invalid time>";
adamc@682 2811 }
adamc@682 2812
adamc@682 2813 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682 2814 size_t len;
adamc@439 2815 char *r;
adam@1392 2816 struct tm stm = {};
adam@1392 2817 stm.tm_isdst = -1;
adamc@439 2818
adam@1365 2819 if (localtime_r(&t.seconds, &stm)) {
adamc@439 2820 uw_check_heap(ctx, TIMES_MAX);
adamc@666 2821 r = ctx->heap.front;
adamc@439 2822 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 2823 ctx->heap.front += len+1;
adamc@439 2824 return r;
adamc@439 2825 } else
adamc@439 2826 return "<Invalid time>";
adamc@439 2827 }
adamc@439 2828
adam@1364 2829 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364 2830 size_t len;
adam@1364 2831 char *r;
adam@1392 2832 struct tm stm = {};
adam@1392 2833 stm.tm_isdst = -1;
adam@1364 2834
adam@1365 2835 if (localtime_r(&t.seconds, &stm)) {
adam@1364 2836 uw_check_heap(ctx, TIMES_MAX);
adam@1364 2837 r = ctx->heap.front;
adam@1365 2838 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365 2839 ctx->heap.front += len;
adam@1365 2840 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365 2841 ctx->heap.front += 8;
adam@1364 2842 return r;
adam@1364 2843 } else
adam@1364 2844 return "<Invalid time>";
adam@1364 2845 }
adam@1364 2846
adamc@467 2847 char *uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time *t) {
adamc@467 2848 if (t == NULL)
adamc@467 2849 return "NULL";
adamc@467 2850 else
adamc@467 2851 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467 2852 }
adamc@467 2853
adamc@311 2854 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311 2855 static uw_Basis_int true = 1;
adamc@311 2856 static uw_Basis_int false = 0;
adamc@282 2857
adamc@311 2858 if (b == uw_Basis_False)
adamc@282 2859 return (char *)&false;
adamc@282 2860 else
adamc@282 2861 return (char *)&true;
adamc@282 2862 }
adamc@284 2863
adamc@311 2864 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284 2865 int len;
adamc@284 2866 char *r;
adamc@284 2867
adamc@311 2868 uw_check_heap(ctx, INTS_MAX);
adamc@666 2869 r = ctx->heap.front;
adamc@284 2870 sprintf(r, "%lld%n", n, &len);
adamc@666 2871 ctx->heap.front += len+1;
adamc@284 2872 return r;
adamc@284 2873 }
adamc@285 2874
adamc@311 2875 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285 2876 int len;
adamc@285 2877 char *r;
adamc@285 2878
adamc@311 2879 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 2880 r = ctx->heap.front;
adamc@285 2881 sprintf(r, "%g%n", n, &len);
adamc@666 2882 ctx->heap.front += len+1;
adamc@285 2883 return r;
adamc@285 2884 }
adamc@285 2885
adamc@821 2886 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821 2887 char *r = uw_malloc(ctx, 2);
adamc@821 2888 r[0] = ch;
adamc@821 2889 r[1] = 0;
adamc@821 2890 return r;
adamc@821 2891 }
adamc@821 2892
adamc@311 2893 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311 2894 if (b == uw_Basis_False)
adamc@285 2895 return "False";
adamc@285 2896 else
adamc@285 2897 return "True";
adamc@285 2898 }
adamc@288 2899
adam@1359 2900 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352 2901 size_t len;
adam@1352 2902 char *r;
adam@1392 2903 struct tm stm = {};
adam@1392 2904 stm.tm_isdst = -1;
adam@1352 2905
adam@1365 2906 if (localtime_r(&t.seconds, &stm)) {
adam@1352 2907 uw_check_heap(ctx, TIMES_MAX);
adam@1352 2908 r = ctx->heap.front;
adam@1352 2909 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352 2910 ctx->heap.front += len+1;
adam@1352 2911 return r;
adam@1352 2912 } else
adam@1352 2913 return "<Invalid time>";
adam@1352 2914 }
adam@1352 2915
adam@1629 2916 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629 2917 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629 2918 }
adam@1629 2919
adamc@311 2920 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288 2921 char *endptr;
adamc@311 2922 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288 2923
adamc@288 2924 if (*s != '\0' && *endptr == '\0') {
adamc@311 2925 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288 2926 *r = n;
adamc@288 2927 return r;
adamc@288 2928 } else
adamc@288 2929 return NULL;
adamc@288 2930 }
adamc@289 2931
adamc@311 2932 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289 2933 char *endptr;
adamc@311 2934 uw_Basis_float n = strtod(s, &endptr);
adamc@289 2935
adamc@289 2936 if (*s != '\0' && *endptr == '\0') {
adamc@311 2937 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289 2938 *r = n;
adamc@289 2939 return r;
adamc@289 2940 } else
adamc@289 2941 return NULL;
adamc@289 2942 }
adamc@289 2943
adamc@821 2944 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821 2945 if (s[0] == 0) {
adamc@821 2946 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821 2947 r[0] = 0;
adamc@821 2948 return r;
adamc@821 2949 } else if (s[1] != 0)
adamc@821 2950 return NULL;
adamc@821 2951 else {
adamc@821 2952 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821 2953 r[0] = s[0];
adamc@821 2954 return r;
adamc@821 2955 }
adamc@821 2956 }
adamc@821 2957
adamc@311 2958 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311 2959 static uw_Basis_bool true = uw_Basis_True;
adamc@311 2960 static uw_Basis_bool false = uw_Basis_False;
adamc@289 2961
adamc@289 2962 if (!strcasecmp (s, "True"))
adamc@289 2963 return &true;
adamc@289 2964 else if (!strcasecmp (s, "False"))
adamc@289 2965 return &false;
adamc@289 2966 else
adamc@289 2967 return NULL;
adamc@289 2968 }
adamc@292 2969
adamc@436 2970 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438 2971 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adam@1374 2972 struct tm stm = {};
adam@1392 2973 stm.tm_isdst = -1;
adamc@436 2974
adamc@439 2975 if (dot) {
adamc@439 2976 *dot = 0;
adamc@439 2977 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439 2978 *dot = '.';
adamc@439 2979 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365 2980 r->seconds = mktime(&stm);
adam@1365 2981 r->microseconds = 0;
adamc@439 2982 return r;
adamc@439 2983 }
adamc@439 2984 else {
adamc@439 2985 *dot = '.';
adamc@439 2986 return NULL;
adamc@439 2987 }
adamc@436 2988 }
adamc@439 2989 else {
adam@2072 2990 if (strptime(s, ctx->app->time_format, &stm) == end) {
adamc@439 2991 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365 2992 r->seconds = mktime(&stm);
adam@1365 2993 r->microseconds = 0;
adamc@439 2994 return r;
adam@2072 2995 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@2072 2996 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@2072 2997 r->seconds = mktime(&stm);
adam@2072 2998 r->microseconds = 0;
adam@2072 2999 return r;
adam@2072 3000 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439 3001 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365 3002 r->seconds = mktime(&stm);
adam@1365 3003 r->microseconds = 0;
adamc@439 3004 return r;
adam@1632 3005 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632 3006 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632 3007 r->seconds = mktime(&stm);
adam@1632 3008 r->microseconds = 0;
adam@1632 3009 return r;
adamc@439 3010 }
adamc@439 3011 else
adamc@439 3012 return NULL;
adamc@439 3013 }
adamc@436 3014 }
adamc@436 3015
adam@1352 3016 uw_Basis_time *uw_Basis_stringToTimef(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352 3017 char *end = strchr(s, 0);
adam@1374 3018 struct tm stm = {};
adam@1392 3019 stm.tm_isdst = -1;
adam@1352 3020
adam@1352 3021 if (strptime(s, fmt, &stm) == end) {
adam@1352 3022 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365 3023 r->seconds = mktime(&stm);
adam@1365 3024 r->microseconds = 0;
adam@1352 3025 return r;
adam@1352 3026 }
adam@1352 3027 else
adam@1352 3028 return NULL;
adam@1352 3029 }
adam@1352 3030
adamc@311 3031 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292 3032 char *endptr;
adamc@311 3033 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292 3034
adamc@292 3035 if (*s != '\0' && *endptr == '\0')
adamc@292 3036 return n;
adamc@292 3037 else
adam@1444 3038 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292 3039 }
adamc@293 3040
adamc@682 3041 #include <errno.h>
adamc@682 3042
adamc@678 3043 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682 3044 unsigned long long n;
adamc@682 3045
adamc@682 3046 if (sscanf(s, "%llu", &n) < 1)
adam@1444 3047 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682 3048 else {
adamc@682 3049 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682 3050 return ch;
adamc@682 3051 }
adamc@682 3052 }
adamc@682 3053
adamc@682 3054 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678 3055 char *endptr;
adamc@682 3056 unsigned long n = strtoul(s, &endptr, 10);
adamc@678 3057
adamc@678 3058 if (*s != '\0' && *endptr == '\0')
adamc@678 3059 return n;
adamc@678 3060 else
adam@1444 3061 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678 3062 }
adamc@678 3063
adamc@311 3064 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293 3065 char *endptr;
adamc@311 3066 uw_Basis_float n = strtod(s, &endptr);
adamc@293 3067
adamc@293 3068 if (*s != '\0' && *endptr == '\0')
adamc@293 3069 return n;
adamc@293 3070 else
adam@1444 3071 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293 3072 }
adamc@293 3073
adamc@821 3074 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821 3075 if (s[0] == 0)
adamc@821 3076 return 0;
adamc@821 3077 else if (s[1] != 0)
adam@1444 3078 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821 3079 else
adamc@821 3080 return s[0];
adamc@821 3081 }
adamc@821 3082
adamc@311 3083 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296 3084 if (!strcasecmp(s, "T") || !strcasecmp (s, "True"))
adamc@311 3085 return uw_Basis_True;
adamc@296 3086 else if (!strcasecmp(s, "F") || !strcasecmp (s, "False"))
adamc@311 3087 return uw_Basis_False;
adamc@293 3088 else
adam@1444 3089 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293 3090 }
adamc@436 3091
adam@1352 3092 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352 3093 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adam@1352 3094 struct tm stm = {};
adam@1392 3095 stm.tm_isdst = -1;
adam@1352 3096
adam@1352 3097 if (dot) {
adam@1352 3098 *dot = 0;
adam@1352 3099 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352 3100 *dot = '.';
adam@1410 3101 char usec[] = "000000";
adam@1410 3102 int len = strlen(dot+1);
adam@1410 3103 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410 3104 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365 3105 return r;
adam@1352 3106 }
adam@1352 3107 else {
adam@1352 3108 *dot = '.';
adam@1444 3109 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352 3110 }
adam@1352 3111 }
adam@1352 3112 else {
adam@1352 3113 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365 3114 uw_Basis_time r = { mktime(&stm) };
adam@1365 3115 return r;
adam@1352 3116 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365 3117 uw_Basis_time r = { mktime(&stm) };
adam@1365 3118 return r;
adam@1352 3119 } else
adam@1444 3120 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352 3121 }
adam@1352 3122 }
adam@1352 3123
adamc@436 3124 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438 3125 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adamc@436 3126 struct tm stm = {};
adam@1392 3127 stm.tm_isdst = -1;
adamc@436 3128
adamc@438 3129 if (dot) {
adamc@438 3130 *dot = 0;
adamc@438 3131 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438 3132 *dot = '.';
adam@1365 3133 {
adam@1365 3134 uw_Basis_time r = { mktime(&stm) };
adam@1365 3135 return r;
adam@1365 3136 }
adamc@438 3137 }
adamc@438 3138 else {
adamc@438 3139 *dot = '.';
adam@1444 3140 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438 3141 }
adamc@438 3142 }
adamc@438 3143 else {
adam@2072 3144 if (strptime(s, ctx->app->time_format, &stm) == end) {
adam@2072 3145 uw_Basis_time r = { mktime(&stm) };
adam@2072 3146 return r;
adam@2072 3147 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365 3148 uw_Basis_time r = { mktime(&stm) };
adam@1365 3149 return r;
adam@1365 3150 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365 3151 uw_Basis_time r = { mktime(&stm) };
adam@1365 3152 return r;
adam@1632 3153 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632 3154 uw_Basis_time r = { mktime(&stm) };
adam@1632 3155 return r;
adam@1365 3156 } else
adam@1444 3157 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438 3158 }
adamc@436 3159 }
adamc@457 3160
adam@1352 3161 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352 3162 char *end = strchr(s, 0);
adamc@939 3163 struct tm stm = {};
adam@1392 3164 stm.tm_isdst = -1;
adamc@939 3165
adam@1365 3166 if (strptime(s, fmt, &stm) == end) {
adam@1365 3167 uw_Basis_time r = { mktime(&stm) };
adam@1365 3168 return r;
adam@1365 3169 } else
adam@1444 3170 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939 3171 }
adamc@939 3172
adamc@742 3173 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742 3174 char *r = ctx->heap.front;
adamc@742 3175 uw_Basis_blob b = {len, r};
adamc@742 3176
adamc@742 3177 uw_check_heap(ctx, len);
adamc@742 3178
adam@1992 3179 if (s[0] == '\\' && s[1] == 'x') {
adam@1992 3180 s += 2;
adam@1992 3181
adam@1992 3182 while (*s) {
adam@1992 3183 int n;
adam@1992 3184 sscanf(s, "%02x", &n);
adam@1992 3185 *r++ = n;
adam@1992 3186 s += 2;
adam@1992 3187 }
adam@1992 3188 } else {
adam@1992 3189 while (*s) {
adam@1992 3190 if (s[0] == '\\') {
adam@1992 3191 if (s[1] == '\\') {
adam@1992 3192 *r++ = '\\';
adam@1992 3193 s += 2;
adam@1992 3194 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adam@1992 3195 *r++ = (s[1] - '0') * 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adam@1992 3196 s += 4;
adam@1992 3197 }
adam@1992 3198 else {
adam@1992 3199 *r++ = '\\';
adam@1992 3200 ++s;
adam@1992 3201 }
adam@1992 3202 } else {
adam@1992 3203 *r++ = s[0];
adamc@742 3204 ++s;
adamc@742 3205 }
adamc@742 3206 }
adamc@742 3207 }
adamc@742 3208
adamc@742 3209 b.size = r - ctx->heap.front;
adamc@742 3210 ctx->heap.front = r;
adam@1992 3211
adamc@742 3212 return b;
adamc@742 3213 }
adamc@742 3214
adam@1402 3215 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052 3216
adamc@463 3217 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463 3218 int len = strlen(c);
adamc@854 3219 char *p = ctx->outHeaders.start;
adamc@474 3220
adamc@1134 3221 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474 3222 char *p2;
adamc@474 3223 p += 13;
adamc@474 3224 p2 = strchr(p, '=');
adamc@474 3225
adamc@474 3226 if (p2) {
adamc@474 3227 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474 3228
adamc@474 3229 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052 3230 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052 3231 return NULL;
adamc@1052 3232 else {
adamc@1052 3233 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052 3234 memcpy(ret, p2+1, sz);
adamc@1052 3235 ret[sz] = 0;
adamc@1052 3236 return ret;
adamc@1052 3237 }
adamc@474 3238 }
adamc@474 3239 }
adamc@474 3240 }
adamc@463 3241
adamc@1134 3242 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051 3243 char *p2;
adamc@1051 3244
adamc@854 3245 while (1) {
adamc@1051 3246 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134 3247 if ((p2 = strchr(p, ';'))) {
adamc@1051 3248 size_t n = p2 - (p + len);
adamc@1051 3249 char *r = uw_malloc(ctx, n);
adamc@1051 3250 memcpy(r, p + 1 + len, n-1);
adamc@1051 3251 r[n-1] = 0;
adamc@1051 3252 return r;
adamc@1051 3253 } else
adamc@1051 3254 return p + 1 + len;
adamc@1134 3255 } else if ((p = strchr(p, ';')))
adamc@854 3256 p += 2;
adamc@463 3257 else
adamc@463 3258 return NULL;
adamc@463 3259 }
adamc@463 3260 }
adamc@792 3261
adamc@792 3262 return NULL;
adamc@457 3263 }
adamc@462 3264
adam@1877 3265 static void set_cookie(uw_context ctx) {
adam@1877 3266 if (ctx->usedSig)
adam@1877 3267 ctx->needsResig = 1;
adam@1877 3268 }
adam@1877 3269
adamc@1050 3270 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 3271 uw_write_header(ctx, "Set-Cookie: ");
adamc@462 3272 uw_write_header(ctx, c);
adamc@462 3273 uw_write_header(ctx, "=");
adamc@462 3274 uw_write_header(ctx, v);
adamc@466 3275 uw_write_header(ctx, "; path=");
adamc@466 3276 uw_write_header(ctx, prefix);
adamc@1050 3277 if (expires) {
adamc@1050 3278 char formatted[30];
adam@1392 3279 struct tm tm = {};
adam@1392 3280 tm.tm_isdst = -1;
adamc@1050 3281
adam@1365 3282 gmtime_r(&expires->seconds, &tm);
adamc@1050 3283
adamc@1050 3284 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050 3285
adamc@1050 3286 uw_write_header(ctx, "; expires=");
adamc@1050 3287 uw_write_header(ctx, formatted);
adamc@1050 3288 }
adamc@1050 3289 if (secure)
adamc@1050 3290 uw_write_header(ctx, "; secure");
adamc@462 3291 uw_write_header(ctx, "\r\n");
adam@1877 3292 set_cookie(ctx);
adamc@462 3293
adamc@462 3294 return uw_unit_v;
adamc@462 3295 }
adamc@667 3296
adamc@1050 3297 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050 3298 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050 3299 uw_write_header(ctx, c);
adamc@1050 3300 uw_write_header(ctx, "=; path=");
adamc@1050 3301 uw_write_header(ctx, prefix);
adamc@1052 3302 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877 3303 set_cookie(ctx);
adamc@1050 3304
adamc@1050 3305 return uw_unit_v;
adamc@1050 3306 }
adamc@1050 3307
adamc@1113 3308 size_t uw_deltas_max = SIZE_MAX;
adamc@1113 3309
adamc@682 3310 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682 3311 unsigned i;
adamc@682 3312 delta *d;
adamc@671 3313
adamc@682 3314 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682 3315 if (ctx->deltas[i].client == client)
adamc@682 3316 return &ctx->deltas[i];
adamc@671 3317
adamc@682 3318 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113 3319 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113 3320 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113 3321
adamc@682 3322 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369 3323 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682 3324 }
adamc@671 3325
adamc@682 3326 d = &ctx->deltas[ctx->used_deltas++];
adamc@682 3327 d->client = client;
adam@1369 3328 uw_buffer_reset(&d->msgs);
adamc@682 3329 return d;
adamc@671 3330 }
adamc@671 3331
adamc@668 3332 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682 3333 if (ctx->client == NULL)
adamc@682 3334 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671 3335
adamc@682 3336 return new_channel(ctx->client);
adamc@668 3337 }
adamc@668 3338
adamc@668 3339 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682 3340 delta *d = allocate_delta(ctx, chn.cli);
adamc@682 3341 size_t len;
adamc@682 3342 int preLen;
adamc@682 3343 char pre[INTS_MAX + 2];
adamc@668 3344
adamc@682 3345 len = strlen(msg);
adamc@682 3346
adamc@682 3347 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682 3348
adam@1369 3349 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369 3350 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369 3351 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671 3352
adamc@671 3353 return uw_unit_v;
adamc@668 3354 }
adamc@671 3355
adam@1327 3356 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131 3357 int i;
adamc@1131 3358 cleanup *cl;
adamc@1131 3359
adamc@1131 3360 if (ctx->client)
adamc@1131 3361 release_client(ctx->client);
adamc@1131 3362
adamc@1131 3363 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131 3364 cl->func(cl->arg);
adamc@1131 3365
adamc@1131 3366 ctx->cleanup_front = ctx->cleanup;
adamc@1131 3367
adamc@1131 3368 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131 3369 if (ctx->transactionals[i].rollback != NULL)
adamc@1131 3370 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131 3371
adamc@1131 3372 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131 3373 if (ctx->transactionals[i].free)
adam@1327 3374 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131 3375
adam@1941 3376 if (ctx->app && ctx->transaction_started) {
adam@1941 3377 ctx->transaction_started = 0;
adam@1941 3378 return ctx->app->db_rollback(ctx);
adam@1941 3379 } else
adam@1941 3380 return 0;
adamc@1131 3381 }
adamc@1131 3382
adam@1956 3383 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 3384 const char uw_begin_html5[] = "<!DOCTYPE html><html>";
adam@1728 3385
adam@1877 3386 extern int uw_hash_blocksize;
adam@1877 3387
adam@1877 3388 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877 3389
adam@1877 3390 static char *find_sig(char *haystack) {
adam@1877 3391 int i;
adam@1877 3392 char *s = strstr(haystack, sig_intro);
adam@1877 3393
adam@1877 3394 if (!s || strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877 3395 return NULL;
phurst@1981 3396
adam@1877 3397 s += sizeof sig_intro - 1;
adam@1877 3398
adam@1877 3399 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877 3400 if (!isxdigit((int)s[i]))
adam@1877 3401 return NULL;
adam@1877 3402
adam@1877 3403 if (s[i] != '"')
adam@1877 3404 return NULL;
adam@1877 3405
adam@1877 3406 return s;
adam@1877 3407 }
adam@1877 3408
adam@2033 3409 static pthread_mutex_t message_send_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2033 3410
adam@1938 3411 int uw_commit(uw_context ctx) {
adamc@1104 3412 int i;
adam@1877 3413 char *sig;
adamc@1104 3414
adamc@1131 3415 if (uw_has_error(ctx)) {
adam@1327 3416 uw_rollback(ctx, 0);
adam@1938 3417 return 0;
adamc@1131 3418 }
adamc@1131 3419
adamc@1104 3420 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771 3421 if (ctx->transactionals[i].rollback != NULL)
adamc@1131 3422 if (ctx->transactionals[i].commit) {
adamc@1083 3423 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131 3424 if (uw_has_error(ctx)) {
adam@1327 3425 uw_rollback(ctx, 0);
adam@1938 3426 return 0;
adamc@1131 3427 }
adamc@1131 3428 }
adamc@771 3429
adam@2033 3430 // Here's an important lock to provide the abstraction that all messages from one transaction are sent as an atomic unit.
adam@2033 3431 if (ctx->used_deltas > 0)
adam@2033 3432 pthread_mutex_lock(&message_send_mutex);
adam@2033 3433
adam@2000 3434 if (ctx->transaction_started) {
adam@2000 3435 int code = ctx->app->db_commit(ctx);
adam@2000 3436
adam@2000 3437 if (code) {
adam@2033 3438 if (ctx->used_deltas > 0)
adam@2033 3439 pthread_mutex_unlock(&message_send_mutex);
adam@2033 3440
adam@2000 3441 if (ctx->client)
adam@2000 3442 release_client(ctx->client);
adam@2000 3443
adam@2000 3444 if (code == -1) {
adam@2000 3445 // This case is for a serialization failure, which is not really an "error."
adam@2000 3446 // The transaction will restart, so we should rollback any transactionals
adam@2000 3447 // that triggered above.
adam@2000 3448
adam@2000 3449 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000 3450 if (ctx->transactionals[i].rollback != NULL)
adam@2000 3451 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2000 3452
adam@2000 3453 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000 3454 if (ctx->transactionals[i].free)
adam@2000 3455 ctx->transactionals[i].free(ctx->transactionals[i].data, 1);
adam@2000 3456
grrwlf@2030 3457 return 1;
adam@2000 3458 }
adam@2000 3459
adam@2000 3460 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000 3461 if (ctx->transactionals[i].free)
adam@2000 3462 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000 3463
adam@2000 3464 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@2000 3465 return 0;
adam@2000 3466 }
adam@2000 3467 }
adam@2000 3468
adamc@1104 3469 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771 3470 if (ctx->transactionals[i].rollback == NULL)
adamc@1131 3471 if (ctx->transactionals[i].commit) {
adamc@1083 3472 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131 3473 if (uw_has_error(ctx)) {
adam@2033 3474 if (ctx->used_deltas > 0)
adam@2033 3475 pthread_mutex_unlock(&message_send_mutex);
adam@2033 3476
adam@2033 3477 if (ctx->client)
adam@2033 3478 release_client(ctx->client);
adam@2033 3479
adam@2033 3480 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033 3481 if (ctx->transactionals[i].rollback != NULL)
adam@2033 3482 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2033 3483
adam@2033 3484 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033 3485 if (ctx->transactionals[i].free)
adam@2033 3486 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000 3487
adam@1938 3488 return 0;
adamc@1131 3489 }
adamc@1131 3490 }
adamc@1131 3491
adamc@682 3492 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682 3493 delta *d = &ctx->deltas[i];
adamc@682 3494 client *c = find_client(d->client);
adamc@682 3495
adam@1551 3496 assert (c != NULL);
adam@1551 3497 assert(c->mode == USED);
adamc@682 3498
adam@1447 3499 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682 3500 }
adamc@682 3501
adam@2033 3502 if (ctx->used_deltas > 0)
adam@2033 3503 pthread_mutex_unlock(&message_send_mutex);
adam@2033 3504
adamc@682 3505 if (ctx->client)
adamc@685 3506 release_client(ctx->client);
adamc@771 3507
adamc@1104 3508 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083 3509 if (ctx->transactionals[i].free)
adam@1327 3510 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916 3511
vshabanoff@1726 3512 uw_check(ctx, 1);
vshabanoff@1726 3513 *ctx->page.front = 0;
adam@1413 3514
adam@1956 3515 if (!ctx->returning_indirectly
adam@1956 3516 && (ctx->app->is_html5
adam@1956 3517 ? !strncmp(ctx->page.start, uw_begin_html5, sizeof uw_begin_html5 - 1)
adam@1956 3518 : !strncmp(ctx->page.start, uw_begin_xhtml, sizeof uw_begin_xhtml - 1))) {
adam@1728 3519 char *s;
adam@1728 3520
adam@1728 3521 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1956 3522 s = ctx->page.start + (ctx->app->is_html5 ? sizeof uw_begin_html5 - 1 : sizeof uw_begin_xhtml - 1);
adam@1728 3523 s = strchr(s, '<');
adam@1728 3524 if (s == NULL) {
adam@1728 3525 // Weird. Document has no tags!
adam@1728 3526
adam@1728 3527 uw_write(ctx, "<head></head><body></body>");
adam@1728 3528 uw_check(ctx, 1);
adam@1728 3529 *ctx->page.front = 0;
adam@1728 3530 } else if (!strncmp(s, "<head>", 6)) {
adam@1728 3531 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728 3532
adam@1729 3533 // Any freeform JavaScript to include?
adam@1729 3534 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729 3535 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729 3536 size_t lenP = lenH + 40 + len;
adam@1729 3537 char *start = s + 6, *oldPage = ctx->page.start;
adam@1729 3538
adam@1729 3539 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729 3540 start += ctx->page.start - oldPage;
adam@1729 3541 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729 3542 ctx->page.front += lenP;
adam@1729 3543 memcpy(start, ctx->script_header, lenH);
adam@1729 3544 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729 3545 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729 3546 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729 3547 } else {
adam@1729 3548 size_t lenH = strlen(ctx->script_header);
adam@1729 3549 char *start = s + 6, *oldPage = ctx->page.start;
adam@1729 3550
adam@1729 3551 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729 3552 start += ctx->page.start - oldPage;
adam@1729 3553 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729 3554 ctx->page.front += lenH;
adam@1729 3555 memcpy(start, ctx->script_header, lenH);
adam@1729 3556 }
adam@1728 3557 } else {
adam@1728 3558 // No <head>. At this point, add it, with <script> tags inside.
adam@1728 3559
adam@1729 3560 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729 3561 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729 3562 size_t lenP = lenH + 53 + len;
adam@1729 3563 char *start = s, *oldPage = ctx->page.start;
adam@1729 3564
adam@1729 3565 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729 3566 start += ctx->page.start - oldPage;
adam@1729 3567 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729 3568 ctx->page.front += lenP;
adam@1729 3569 memcpy(start, "<head>", 6);
adam@1729 3570 memcpy(start + 6, ctx->script_header, lenH);
adam@1729 3571 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729 3572 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729 3573 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729 3574 } else {
adam@1729 3575 size_t lenH = strlen(ctx->script_header);
adam@1729 3576 size_t lenP = lenH + 13;
adam@1729 3577 char *start = s, *oldPage = ctx->page.start;
adam@1729 3578
adam@1729 3579 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729 3580 start += ctx->page.start - oldPage;
adam@1729 3581 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729 3582 ctx->page.front += lenP;
adam@1729 3583 memcpy(start, "<head>", 6);
adam@1729 3584 memcpy(start + 6, ctx->script_header, lenH);
adam@1729 3585 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729 3586 }
adamc@916 3587 }
adamc@916 3588 }
adam@1877 3589
adam@1877 3590 if (ctx->needsResig) {
adam@1877 3591 sig = find_sig(ctx->page.start);
adam@1877 3592 if (sig) {
adam@1877 3593 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877 3594
adam@1877 3595 do {
adam@1877 3596 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877 3597 sig = find_sig(sig);
adam@1877 3598 } while (sig);
adam@1877 3599 }
adam@1877 3600 }
adam@1938 3601
adam@1938 3602 return 0;
adamc@671 3603 }
adamc@671 3604
adamc@683 3605
adamc@1113 3606 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113 3607
adam@2001 3608 int uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327 3609 uw_callback_with_retry free) {
adamc@771 3610 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113 3611 if (ctx->used_transactionals+1 > uw_transactionals_max)
adam@2001 3612 // Exceeded limit on number of transactionals.
adam@2001 3613 return -1;
adamc@1084 3614 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771 3615 ++ctx->n_transactionals;
adamc@771 3616 }
adamc@771 3617
adamc@771 3618 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771 3619 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771 3620 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771 3621 ctx->transactionals[ctx->used_transactionals++].free = free;
adam@2001 3622
adam@2001 3623 return 0;
adamc@771 3624 }
adamc@771 3625
adamc@683 3626
adamc@683 3627 // "Garbage collection"
adamc@683 3628
adamc@1121 3629 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121 3630 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121 3631
adamc@1121 3632 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683 3633 int r = setjmp(ctx->jmp_buf);
adamc@683 3634
adamc@1121 3635 if (r == 0)
adamc@1121 3636 uw_do_expunge(ctx, cli, data);
adamc@1121 3637 else
adamc@1121 3638 ctx->app->db_rollback(ctx);
adamc@1121 3639
adamc@1121 3640 uw_post_expunge(ctx, data);
adamc@683 3641
adamc@683 3642 return r;
adamc@683 3643 }
adamc@683 3644
adamc@683 3645 void uw_prune_clients(uw_context ctx) {
adamc@683 3646 client *c, *next, *prev = NULL;
adamc@683 3647 time_t cutoff;
adamc@683 3648
adamc@1094 3649 cutoff = time(NULL) - ctx->app->timeout;
adamc@683 3650
adamc@683 3651 pthread_mutex_lock(&clients_mutex);
adam@1707 3652 pruning_thread = pthread_self();
adam@1707 3653 pruning_thread_initialized = 1;
adamc@683 3654
adamc@683 3655 for (c = clients_used; c; c = next) {
adamc@683 3656 next = c->next;
adamc@683 3657 pthread_mutex_lock(&c->lock);
adamc@685 3658 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683 3659 failure_kind fk = UNLIMITED_RETRY;
adamc@683 3660 if (prev)
adamc@683 3661 prev->next = next;
adamc@683 3662 else
adamc@683 3663 clients_used = next;
adamc@683 3664 while (fk == UNLIMITED_RETRY) {
adam@1941 3665 uw_reset(ctx);
adamc@1121 3666 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121 3667 if (fk == UNLIMITED_RETRY)
adamc@684 3668 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683 3669 }
adamc@684 3670 if (fk == SUCCESS)
adamc@684 3671 free_client(c);
adamc@1121 3672 else
adamc@856 3673 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683 3674 }
adamc@683 3675 else
adamc@683 3676 prev = c;
adamc@683 3677 pthread_mutex_unlock(&c->lock);
adamc@683 3678 }
adamc@683 3679
adamc@683 3680 pthread_mutex_unlock(&clients_mutex);
adamc@683 3681 }
adamc@687 3682
adamc@687 3683 failure_kind uw_initialize(uw_context ctx) {
adamc@687 3684 int r = setjmp(ctx->jmp_buf);
adamc@687 3685
adamc@687 3686 if (r == 0) {
adam@1936 3687 uw_ensure_transaction(ctx);
adamc@1094 3688 ctx->app->initializer(ctx);
adam@2296 3689 if (uw_commit(ctx))
adamc@687 3690 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687 3691 }
adamc@687 3692
adamc@687 3693 return r;
adamc@687 3694 }
adamc@717 3695
adamc@1065 3696 static int url_bad(uw_Basis_string s) {
adamc@1065 3697 for (; *s; ++s)
adamc@1153 3698 if (!isgraph((int)*s))
adamc@1065 3699 return 1;
adamc@1065 3700
adamc@1065 3701 return 0;
adamc@1065 3702 }
adamc@1065 3703
adamc@717 3704 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065 3705 if (url_bad(s))
adamc@1065 3706 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094 3707 if (ctx->app->check_url(s))
adamc@770 3708 return s;
adamc@770 3709 else
adamc@770 3710 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717 3711 }
adamc@734 3712
adamc@770 3713 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065 3714 if (url_bad(s))
adamc@1065 3715 return NULL;
adamc@1094 3716 if (ctx->app->check_url(s))
adamc@770 3717 return s;
adamc@770 3718 else
adamc@770 3719 return NULL;
adamc@770 3720 }
adamc@770 3721
adam@1465 3722 static int mime_format(const char *s) {
adamc@770 3723 for (; *s; ++s)
grrwlf@2024 3724 if (!isalnum((int)*s) && *s != '/' && *s != '-' && *s != '.' && *s != '+')
adamc@770 3725 return 0;
adamc@770 3726
adamc@770 3727 return 1;
adamc@770 3728 }
adamc@770 3729
adamc@741 3730 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770 3731 if (!mime_format(s))
adamc@770 3732 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770 3733
adamc@1094 3734 if (ctx->app->check_mime(s))
adamc@770 3735 return s;
adamc@770 3736 else
adamc@770 3737 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770 3738 }
adamc@770 3739
adamc@770 3740 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770 3741 if (!mime_format(s))
adamc@770 3742 return NULL;
adamc@770 3743
adamc@1094 3744 if (ctx->app->check_mime(s))
adamc@770 3745 return s;
adamc@770 3746 else
adamc@770 3747 return NULL;
adamc@741 3748 }
adamc@741 3749
adam@1465 3750 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465 3751 if (!mime_format(s))
adam@1465 3752 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465 3753
adam@1465 3754 if (ctx->app->check_requestHeader(s))
adam@1465 3755 return s;
adam@1465 3756 else
adam@1465 3757 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465 3758 }
adam@1465 3759
adam@1465 3760 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465 3761 if (!mime_format(s))
adam@1465 3762 return NULL;
adam@1465 3763
adam@1465 3764 if (ctx->app->check_requestHeader(s))
adam@1465 3765 return s;
adam@1465 3766 else
adam@1465 3767 return NULL;
adam@1465 3768 }
adam@1465 3769
adam@1465 3770 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465 3771 if (!mime_format(s))
adam@1465 3772 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465 3773
adam@1465 3774 if (ctx->app->check_responseHeader(s))
adam@1465 3775 return s;
adam@1465 3776 else
adam@1465 3777 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465 3778 }
adam@1465 3779
adam@1799 3780 static int envVar_format(const char *s) {
adam@1799 3781 for (; *s; ++s)
adam@1799 3782 if (!isalnum((int)*s) && *s != '_' && *s != '.')
adam@1799 3783 return 0;
adam@1799 3784
adam@1799 3785 return 1;
adam@1799 3786 }
adam@1799 3787
adam@1465 3788 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799 3789 if (!envVar_format(s))
adam@1465 3790 return NULL;
adam@1465 3791
adam@1465 3792 if (ctx->app->check_responseHeader(s))
adam@1465 3793 return s;
adam@1465 3794 else
adam@1465 3795 return NULL;
adam@1465 3796 }
adam@1465 3797
adam@1799 3798 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799 3799 if (!envVar_format(s))
adam@1799 3800 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799 3801
adam@1799 3802 if (ctx->app->check_envVar(s))
adam@1799 3803 return s;
adam@1799 3804 else
adam@1799 3805 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799 3806 }
adam@1799 3807
adam@1799 3808 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799 3809 if (!mime_format(s))
adam@1799 3810 return NULL;
adam@1799 3811
adam@1799 3812 if (ctx->app->check_envVar(s))
adam@1799 3813 return s;
adam@1799 3814 else
adam@1799 3815 return NULL;
adam@1799 3816 }
adam@1799 3817
adam@1465 3818 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465 3819 return uw_Basis_requestHeader(ctx, name);
adam@1465 3820 }
adam@1465 3821
adam@1465 3822 static int mime_value_format(const char *s) {
adam@1465 3823 for (; *s; ++s)
adam@1465 3824 if (*s == '\r' || *s == '\n')
adam@1465 3825 return 0;
adam@1465 3826
adam@1465 3827 return 1;
adam@1465 3828 }
adam@1465 3829
adam@1465 3830 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465 3831 if (!mime_value_format(value))
adam@1465 3832 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465 3833
adam@1465 3834 uw_write_header(ctx, name);
adam@1465 3835 uw_write_header(ctx, ": ");
adam@1465 3836 uw_write_header(ctx, value);
adam@1465 3837 uw_write_header(ctx, "\r\n");
adam@1465 3838
adam@1465 3839 return uw_unit_v;
adam@1465 3840 }
adam@1465 3841
adam@1799 3842 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1993 3843 if (ctx->get_env)
adam@1993 3844 return ctx->get_env(ctx->get_env_data, name);
adam@1993 3845 else
adam@1994 3846 return getenv(name);
adam@1799 3847 }
adam@1799 3848
adamc@734 3849 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734 3850 return s ? s : "";
adamc@734 3851 }
adamc@734 3852
adamc@734 3853 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734 3854 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734 3855 int i;
phurst@1981 3856
adamc@734 3857 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734 3858 sprintf(&r[2*i], "%.02X", ((unsigned char *)sig)[i]);
adamc@734 3859
adamc@734 3860 return r;
adamc@734 3861 }
adamc@734 3862
adam@1512 3863 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512 3864 * optimizations that would enable timing attacks. See:
adam@1512 3865 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512 3866 */
adam@1512 3867 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512 3868 int i, x = 0, len1 = strlen(s1);
adam@1512 3869
adam@1512 3870 if (len1 != strlen(s2)) return 0;
adam@1512 3871
adam@1512 3872 for (i = 0; i < len1; ++i) {
adam@1512 3873 __asm__ __volatile__ ("");
adam@1512 3874 x |= s1[i] ^ s2[i];
adam@1512 3875 }
adam@1512 3876
adam@1512 3877 return x == 0;
adam@1512 3878 }
adam@1512 3879
adamc@734 3880 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877 3881 ctx->usedSig = 1;
adamc@1094 3882 return ctx->app->cookie_sig(ctx);
adamc@734 3883 }
adamc@737 3884
adamc@737 3885 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737 3886 return f.name;
adamc@737 3887 }
adamc@737 3888
adamc@740 3889 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740 3890 return f.type;
adamc@740 3891 }
adamc@740 3892
adamc@745 3893 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745 3894 return b.size;
adamc@745 3895 }
adamc@745 3896
adamc@1119 3897 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119 3898 uw_Basis_blob b = {strlen(s), s};
adamc@1119 3899
adamc@1119 3900 return b;
adamc@1119 3901 }
adamc@1119 3902
adamc@737 3903 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737 3904 return f.data;
adamc@737 3905 }
adamc@741 3906
adam@1347 3907 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347 3908 return pb.type;
adam@1347 3909 }
adam@1347 3910
adam@1347 3911 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347 3912 return pb.data;
adam@1347 3913 }
adam@1347 3914
adam@1471 3915 static char *old_headers(uw_context ctx) {
adam@1471 3916 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471 3917 return NULL;
adam@1471 3918 else {
adam@1471 3919 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471 3920
adam@1471 3921 if (s == NULL || strncasecmp(s+1, "Content-type: ", 14))
adam@1471 3922 return NULL;
adam@1471 3923 else {
adam@1471 3924 s = strchr(s+15, '\n');
adam@1471 3925 if (s == NULL)
adam@1471 3926 return NULL;
adam@1471 3927 else
adam@1471 3928 return uw_strdup(ctx, s+1);
adam@1471 3929 }
adam@1471 3930 }
adam@1471 3931 }