annotate src/c/urweb.c @ 2297:6d56080f495c

Fix a read-after-free bug using a timestamp check
author Adam Chlipala <adam@chlipala.net>
date Thu, 19 Nov 2015 13:18:58 -0500
parents 5104e480b3e3
children 6e580e319077
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.
ziv@2262 507 int numRecording;
ziv@2262 508 int recordingOffset;
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;
ziv@2262 599 ctx->recordingOffset = 0;
ziv@2285 600 ctx->cacheUpdate = NULL;
ziv@2285 601 ctx->cacheUpdateTail = NULL;
ziv@2204 602
adam@2073 603 ctx->remoteSock = -1;
adam@2073 604
adam@2296 605 ctx->cacheUnlock = NULL;
adam@2296 606
adamc@117 607 return ctx;
adamc@106 608 }
adamc@106 609
adamc@1113 610 size_t uw_inputs_max = SIZE_MAX;
adamc@1113 611
adamc@1121 612 uw_app *uw_get_app(uw_context ctx) {
adamc@1121 613 return ctx->app;
adamc@1121 614 }
adamc@1121 615
adamc@1113 616 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094 617 ctx->app = app;
adamc@1094 618
adamc@1105 619 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113 620 if (app->inputs_len > uw_inputs_max)
adamc@1113 621 return 1;
adamc@1113 622
adamc@1094 623 ctx->sz_inputs = app->inputs_len;
adamc@1094 624 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094 625 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094 626 }
adamc@1134 627
adamc@1134 628 return 0;
adamc@1094 629 }
adamc@1094 630
adamc@1121 631 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121 632 uw_copy_client_data(ctx->client_data, data);
adamc@1121 633 }
adamc@1121 634
adamc@311 635 void uw_set_db(uw_context ctx, void *db) {
adamc@272 636 ctx->db = db;
adamc@272 637 }
adamc@272 638
adamc@311 639 void *uw_get_db(uw_context ctx) {
adamc@272 640 return ctx->db;
adamc@272 641 }
adamc@272 642
grrwlf@1997 643
grrwlf@1997 644 uw_loggers* uw_get_loggers(struct uw_context *ctx) {
grrwlf@1997 645 return ctx->loggers;
grrwlf@1997 646 }
grrwlf@1997 647
adamc@311 648 void uw_free(uw_context ctx) {
adamc@671 649 size_t i;
adamc@671 650
adam@1369 651 uw_buffer_free(&ctx->outHeaders);
adam@1369 652 uw_buffer_free(&ctx->script);
adam@1369 653 uw_buffer_free(&ctx->page);
adam@1369 654 uw_buffer_free(&ctx->heap);
adamc@144 655 free(ctx->inputs);
adamc@756 656 free(ctx->subinputs);
adamc@425 657 free(ctx->cleanup);
adamc@771 658 free(ctx->transactionals);
adamc@1121 659 uw_free_client_data(ctx->client_data);
adamc@671 660
adamc@682 661 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369 662 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330 663 free(ctx->deltas);
adamc@671 664
adamc@1061 665 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089 666 if (ctx->globals[i].free)
adamc@1089 667 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330 668 free(ctx->globals);
adamc@1061 669
adam@1949 670 free(ctx->output_buffer);
adam@1949 671
adamc@136 672 free(ctx);
adamc@136 673 }
adamc@136 674
adamc@562 675 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369 676 uw_buffer_reset(&ctx->outHeaders);
adam@1369 677 uw_buffer_reset(&ctx->script);
adamc@667 678 ctx->script.start[0] = 0;
adam@1369 679 uw_buffer_reset(&ctx->page);
adam@1451 680 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369 681 uw_buffer_reset(&ctx->heap);
adamc@323 682 ctx->regions = NULL;
adamc@425 683 ctx->cleanup_front = ctx->cleanup;
adamc@682 684 ctx->used_deltas = 0;
adamc@682 685 ctx->client = NULL;
adamc@759 686 ctx->cur_container = NULL;
adamc@771 687 ctx->used_transactionals = 0;
adamc@1117 688 ctx->script_header = "";
adam@1370 689 ctx->queryString = NULL;
adam@1556 690 ctx->nextId = 0;
adam@1782 691 ctx->amInitializing = 0;
adam@1877 692 ctx->usedSig = 0;
adam@1877 693 ctx->needsResig = 0;
adam@2073 694 ctx->remoteSock = -1;
adamc@167 695 }
adamc@167 696
adamc@562 697 void uw_reset_keep_request(uw_context ctx) {
adamc@562 698 uw_reset_keep_error_message(ctx);
adamc@562 699 ctx->error_message[0] = 0;
adamc@167 700 }
adamc@167 701
adamc@311 702 void uw_reset(uw_context ctx) {
adamc@311 703 uw_reset_keep_request(ctx);
adamc@1105 704 if (ctx->app)
adamc@1105 705 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756 706 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461 707 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adam@1943 708 ctx->transaction_started = 0;
adamc@144 709 }
adamc@144 710
adamc@311 711 failure_kind uw_begin_init(uw_context ctx) {
adamc@272 712 int r = setjmp(ctx->jmp_buf);
adamc@272 713
adamc@1105 714 if (r == 0 && ctx->app)
adamc@1094 715 ctx->app->db_init(ctx);
adamc@272 716
adamc@272 717 return r;
adamc@272 718 }
adamc@272 719
adamc@1118 720 void uw_close(uw_context ctx) {
adamc@1118 721 ctx->app->db_close(ctx);
adamc@1118 722 }
adamc@1118 723
adam@1446 724 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446 725 return ctx->get_header(ctx->get_header_data, h);
adam@1446 726 }
adam@1446 727
adamc@854 728 void uw_set_headers(uw_context ctx, char *(*get_header)(void *, const char *), void *get_header_data) {
adamc@854 729 ctx->get_header = get_header;
adamc@854 730 ctx->get_header_data = get_header_data;
adamc@742 731 }
adamc@742 732
adam@1799 733 void uw_set_env(uw_context ctx, char *(*get_env)(void *, const char *), void *get_env_data) {
adam@1799 734 ctx->get_env = get_env;
adam@1799 735 ctx->get_env_data = get_env_data;
adam@1799 736 }
adam@1799 737
adamc@801 738 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801 739 va_list ap;
adamc@801 740 va_start(ap, fmt);
adamc@801 741
adamc@801 742 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801 743 }
adamc@801 744
adamc@1131 745 int uw_has_error(uw_context ctx) {
adamc@1131 746 return ctx->error_message[0] != 0;
adamc@1131 747 }
adamc@1131 748
adamc@311 749 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425 750 cleanup *cl;
adamc@425 751
adamc@167 752 va_list ap;
adamc@167 753 va_start(ap, fmt);
adamc@167 754
adamc@167 755 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167 756
adamc@425 757 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425 758 cl->func(cl->arg);
adamc@425 759
adamc@425 760 ctx->cleanup_front = ctx->cleanup;
adamc@425 761
adamc@190 762 longjmp(ctx->jmp_buf, fk);
adamc@167 763 }
adamc@167 764
adamc@1113 765 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113 766
adamc@425 767 void uw_push_cleanup(uw_context ctx, void (*func)(void *), void *arg) {
adamc@425 768 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425 769 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425 770 if (len == 0)
adamc@425 771 newLen = 1;
adamc@425 772 else
adamc@428 773 newLen = len * 2;
adamc@1113 774
adamc@1134 775 if (newLen > uw_cleanup_max) {
adamc@1113 776 if (len+1 <= uw_cleanup_max)
adamc@1113 777 newLen = uw_cleanup_max;
adamc@1113 778 else
adamc@1113 779 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134 780 }
adamc@1113 781
adamc@470 782 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425 783 ctx->cleanup_front = ctx->cleanup + len;
adamc@425 784 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425 785 }
adamc@425 786
adamc@425 787 ctx->cleanup_front->func = func;
adamc@425 788 ctx->cleanup_front->arg = arg;
adamc@425 789 ++ctx->cleanup_front;
adamc@425 790 }
adamc@425 791
adam@1444 792 char *uw_Basis_htmlifyString(uw_context, const char *);
adam@1444 793
adamc@682 794 void uw_login(uw_context ctx) {
adam@1942 795 char *id_s, *pass_s;
adam@1942 796
adam@1942 797 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adam@1942 798 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adam@1942 799 unsigned id = atoi(id_s);
adam@1942 800 int pass = atoi(pass_s);
adam@1942 801 client *c = find_client(id);
adam@1942 802
adam@1942 803 if (c == NULL)
adam@1942 804 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 805 else {
adamc@685 806 use_client(c);
adamc@682 807 ctx->client = c;
adam@1942 808
adam@1942 809 if (c->mode != USED)
adam@1942 810 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adam@1942 811 if (c->pass != pass)
adam@1942 812 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@864 813 }
adam@1942 814 } else if (ctx->needs_push) {
adam@1942 815 client *c = new_client();
adam@1942 816
adam@1942 817 if (c == NULL)
adam@1942 818 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adam@1942 819
adam@1942 820 use_client(c);
adam@1942 821 uw_copy_client_data(c->data, ctx->client_data);
adam@1942 822 ctx->client = c;
adamc@682 823 }
adamc@682 824 }
adamc@682 825
adamc@671 826 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671 827 int r = setjmp(ctx->jmp_buf);
adamc@671 828
adam@1931 829 if (r == 0)
adam@1931 830 ctx->app->handle(ctx, path);
adam@1931 831
adam@1931 832 return r;
adam@1931 833 }
adam@1931 834
adam@2176 835 static void uw_try_reconnecting(uw_context ctx) {
adam@2176 836 // Hm, error starting transaction.
adam@2176 837 // Maybe the database server died but has since come back up.
adam@2176 838 // Let's try starting from scratch.
adam@2176 839 if (ctx->db) {
adam@2176 840 ctx->app->db_close(ctx);
adam@2176 841 ctx->db = NULL;
adam@2176 842 }
adam@2176 843 ctx->app->db_init(ctx);
adam@2176 844 }
adam@2176 845
adam@2177 846 void uw_try_reconnecting_and_restarting(uw_context ctx) {
adam@2177 847 uw_try_reconnecting(ctx);
adam@2178 848 uw_error(ctx, BOUNDED_RETRY, "Restarting transaction after fixing database connection");
adam@2176 849 }
adam@2176 850
adam@1931 851 void uw_ensure_transaction(uw_context ctx) {
adam@2056 852 if (!ctx->transaction_started && !ctx->at_most_one_query) {
adam@2176 853 if (!ctx->db || ctx->app->db_begin(ctx, ctx->could_write_db)) {
adam@2176 854 uw_try_reconnecting(ctx);
adam@2176 855
adam@2176 856 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adam@2176 857 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adam@2176 858 }
adam@2176 859
adam@1931 860 ctx->transaction_started = 1;
adam@2178 861 } else if (ctx->at_most_one_query && !ctx->db)
adam@2178 862 uw_try_reconnecting(ctx);
adamc@671 863 }
adamc@671 864
adamc@772 865 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682 866 if (ctx->client == NULL)
adamc@682 867 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682 868
adamc@682 869 return ctx->client->id;
adamc@682 870 }
adamc@682 871
adamc@425 872 void uw_pop_cleanup(uw_context ctx) {
adamc@425 873 if (ctx->cleanup_front == ctx->cleanup)
adamc@425 874 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425 875
adamc@425 876 --ctx->cleanup_front;
adamc@425 877 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425 878 }
adamc@425 879
adamc@311 880 char *uw_error_message(uw_context ctx) {
adamc@167 881 return ctx->error_message;
adamc@167 882 }
adamc@167 883
adamc@1115 884 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115 885 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115 886 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115 887 }
adamc@1115 888
adamc@759 889 static input *INP(uw_context ctx) {
adamc@759 890 if (ctx->cur_container == NULL)
adamc@759 891 return ctx->inputs;
adamc@759 892 else if (ctx->cur_container->kind == SUBFORM)
adamc@759 893 return ctx->cur_container->data.subform.fields;
adamc@759 894 else if (ctx->cur_container->kind == ENTRY)
adamc@759 895 return ctx->cur_container->data.entry.fields;
adamc@759 896 else
adamc@760 897 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759 898 }
adamc@759 899
adamc@760 900 static void adjust_pointer(input **ptr, input *old_start, input *new_start, size_t len) {
adamc@760 901 if (*ptr != NULL && *ptr >= old_start && *ptr < old_start + len)
adamc@760 902 *ptr += new_start - old_start;
adamc@760 903 }
adamc@760 904
adamc@760 905 static void adjust_input(input *x, input *old_start, input *new_start, size_t len) {
adamc@759 906 switch (x->kind) {
adamc@759 907 case SUBFORM:
adamc@760 908 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760 909 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759 910 break;
adamc@759 911 case SUBFORMS:
adamc@760 912 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760 913 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759 914 break;
adamc@759 915 case ENTRY:
adamc@760 916 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760 917 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760 918 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134 919 break;
adamc@1134 920 default:
adamc@1134 921 break;
phurst@1981 922 }
adamc@759 923 }
adamc@759 924
adamc@1113 925 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113 926
adamc@759 927 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759 928 size_t i;
adamc@759 929 input *r;
adamc@759 930
adamc@759 931 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113 932 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113 933 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113 934
adamc@759 935 input *new_subinputs = realloc(ctx->subinputs, sizeof(input) * (ctx->used_subinputs + len));
adamc@759 936
adamc@760 937 if (ctx->subinputs != new_subinputs) {
adamc@760 938 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760 939 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094 940 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760 941 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760 942
adamc@760 943 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760 944
adamc@760 945 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760 946 ctx->subinputs = new_subinputs;
adamc@760 947 }
adamc@759 948 }
adamc@759 949
adamc@759 950 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759 951
adamc@759 952 for (i = 0; i < len; ++i)
adam@1474 953 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759 954
adamc@759 955 return r;
adamc@759 956 }
adamc@756 957
adamc@801 958 int uw_set_input(uw_context ctx, const char *name, char *value) {
adamc@1050 959 //printf("Input name %s\n", name);
adamc@1038 960
adamc@756 961 if (!strcasecmp(name, ".b")) {
adamc@1094 962 int n = ctx->app->input_num(value);
adamc@756 963 input *inps;
adamc@756 964
adamc@801 965 if (n < 0) {
adam@1444 966 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801 967 return -1;
adamc@801 968 }
adamc@801 969
adamc@1094 970 if (n >= ctx->app->inputs_len) {
adam@1444 971 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801 972 return -1;
adamc@801 973 }
adamc@756 974
adamc@1094 975 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759 976
adamc@759 977 INP(ctx)[n].kind = SUBFORM;
adamc@759 978 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759 979 INP(ctx)[n].data.subform.fields = inps;
adamc@759 980 ctx->cur_container = &INP(ctx)[n];
adamc@756 981 } else if (!strcasecmp(name, ".e")) {
adamc@756 982 input *tmp;
adamc@756 983
adamc@801 984 if (ctx->cur_container == NULL) {
adamc@801 985 uw_set_error(ctx, "Unmatched subform closer");
adamc@801 986 return -1;
adamc@801 987 }
adamc@756 988
adamc@759 989 tmp = ctx->cur_container;
adamc@759 990 switch (tmp->kind) {
adamc@759 991 case SUBFORM:
adamc@759 992 ctx->cur_container = tmp->data.subform.parent;
adamc@759 993 tmp->data.subform.parent = NULL;
adamc@759 994 break;
adamc@759 995 case SUBFORMS:
adamc@759 996 ctx->cur_container = tmp->data.subforms.parent;
adamc@759 997 tmp->data.subforms.parent = NULL;
adamc@759 998 break;
adamc@759 999 case ENTRY:
adamc@759 1000 ctx->cur_container = tmp->data.entry.parent;
adamc@759 1001 break;
adamc@759 1002 default:
adamc@801 1003 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801 1004 return -1;
adamc@759 1005 }
adamc@759 1006 } else if (!strcasecmp(name, ".s")) {
adamc@1094 1007 int n = ctx->app->input_num(value);
adamc@759 1008
adamc@801 1009 if (n < 0) {
adam@1444 1010 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801 1011 return -1;
adamc@801 1012 }
adamc@801 1013
adamc@1094 1014 if (n >= ctx->app->inputs_len) {
adam@1444 1015 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801 1016 return -1;
adamc@801 1017 }
adamc@759 1018
adamc@759 1019 INP(ctx)[n].kind = SUBFORMS;
adamc@759 1020 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759 1021 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759 1022 ctx->cur_container = &INP(ctx)[n];
adamc@759 1023 } else if (!strcasecmp(name, ".i")) {
adamc@759 1024 input *inps;
adamc@759 1025
adamc@801 1026 if (!ctx->cur_container) {
adamc@801 1027 uw_set_error(ctx, "New entry without container");
adamc@801 1028 return -1;
adamc@801 1029 }
adamc@801 1030
adamc@801 1031 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801 1032 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801 1033 return -1;
adamc@801 1034 }
adamc@759 1035
adamc@1094 1036 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759 1037
adamc@759 1038 inps->kind = ENTRY;
adamc@759 1039 inps->data.entry.parent = ctx->cur_container;
adamc@759 1040 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759 1041 ctx->cur_container->data.subforms.entries = inps;
adamc@759 1042
adamc@759 1043 inps->data.entry.fields = inps+1;
adamc@759 1044 ctx->cur_container = inps;
adamc@756 1045 } else {
adamc@1094 1046 int n = ctx->app->input_num(name);
adamc@756 1047
adam@1384 1048 if (n < 0)
adam@1384 1049 return 0;
adamc@801 1050
adamc@1094 1051 if (n >= ctx->app->inputs_len) {
adam@1444 1052 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801 1053 return -1;
adamc@801 1054 }
adamc@756 1055
adamc@756 1056 INP(ctx)[n].kind = NORMAL;
adamc@756 1057 INP(ctx)[n].data.normal = value;
adamc@756 1058 }
adamc@801 1059
adamc@801 1060 return 0;
adamc@144 1061 }
adamc@144 1062
adamc@311 1063 char *uw_get_input(uw_context ctx, int n) {
adamc@169 1064 if (n < 0)
adamc@311 1065 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094 1066 if (n >= ctx->app->inputs_len)
adamc@311 1067 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737 1068
adamc@756 1069 switch (INP(ctx)[n].kind) {
adamc@737 1070 case UNSET:
adamc@737 1071 return NULL;
adamc@739 1072 case FIL:
adamc@739 1073 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756 1074 case SUBFORM:
adamc@756 1075 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759 1076 case SUBFORMS:
adamc@759 1077 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759 1078 case ENTRY:
adamc@759 1079 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737 1080 case NORMAL:
adamc@756 1081 return INP(ctx)[n].data.normal;
adamc@737 1082 default:
adamc@737 1083 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 1084 }
adamc@138 1085 }
adamc@138 1086
adamc@311 1087 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190 1088 if (n < 0)
adamc@311 1089 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094 1090 if (n >= ctx->app->inputs_len)
adamc@311 1091 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737 1092
adamc@756 1093 switch (INP(ctx)[n].kind) {
adamc@737 1094 case UNSET:
adamc@737 1095 return "";
adamc@739 1096 case FIL:
adamc@739 1097 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756 1098 case SUBFORM:
adamc@756 1099 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759 1100 case SUBFORMS:
adamc@759 1101 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759 1102 case ENTRY:
adamc@759 1103 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737 1104 case NORMAL:
adamc@756 1105 return INP(ctx)[n].data.normal;
adamc@737 1106 default:
adamc@737 1107 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 1108 }
adamc@737 1109 }
adamc@737 1110
adamc@801 1111 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094 1112 int n = ctx->app->input_num(name);
adamc@737 1113
adamc@801 1114 if (n < 0) {
adam@2054 1115 uw_set_error(ctx, "Bad file input name");
adamc@801 1116 return -1;
adamc@801 1117 }
adamc@801 1118
adamc@1094 1119 if (n >= ctx->app->inputs_len) {
adam@2054 1120 uw_set_error(ctx, "For file input name, index %d is out of range", n);
adamc@801 1121 return -1;
adamc@801 1122 }
adamc@737 1123
adamc@739 1124 ctx->inputs[n].kind = FIL;
adamc@739 1125 ctx->inputs[n].data.file = f;
adamc@801 1126
adamc@801 1127 return 0;
adamc@737 1128 }
adamc@737 1129
adamc@739 1130 void *uw_malloc(uw_context ctx, size_t len);
adamc@739 1131
adamc@739 1132 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737 1133 if (n < 0)
adamc@737 1134 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094 1135 if (n >= ctx->app->inputs_len)
adamc@737 1136 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737 1137
adamc@756 1138 switch (INP(ctx)[n].kind) {
adamc@737 1139 case UNSET:
adamc@737 1140 {
adamc@739 1141 char *data = uw_malloc(ctx, 0);
adamc@740 1142 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739 1143 return f;
adamc@737 1144 }
adamc@739 1145 case FIL:
adamc@756 1146 return INP(ctx)[n].data.file;
adamc@737 1147 case NORMAL:
adamc@737 1148 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756 1149 case SUBFORM:
adamc@756 1150 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759 1151 case SUBFORMS:
adamc@759 1152 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759 1153 case ENTRY:
adamc@759 1154 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737 1155 default:
adamc@737 1156 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 1157 }
adamc@190 1158 }
adamc@190 1159
adamc@756 1160 void uw_enter_subform(uw_context ctx, int n) {
adamc@756 1161 if (n < 0)
adamc@756 1162 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094 1163 if (n >= ctx->app->inputs_len)
adamc@756 1164 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756 1165
adamc@756 1166 switch (INP(ctx)[n].kind) {
adamc@756 1167 case UNSET:
adamc@756 1168 uw_error(ctx, FATAL, "Missing subform");
adamc@756 1169 case FIL:
adamc@756 1170 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756 1171 case NORMAL:
adamc@756 1172 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759 1173 case SUBFORMS:
adamc@759 1174 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759 1175 case ENTRY:
adamc@759 1176 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756 1177 case SUBFORM:
adamc@759 1178 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760 1179 ctx->cur_container = &INP(ctx)[n];
adamc@756 1180 return;
adamc@756 1181 default:
adamc@756 1182 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756 1183 }
adamc@756 1184 }
adamc@756 1185
adamc@756 1186 void uw_leave_subform(uw_context ctx) {
adamc@756 1187 input *tmp;
adamc@756 1188
adamc@759 1189 if (ctx->cur_container == NULL)
adamc@756 1190 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756 1191
adamc@759 1192 tmp = ctx->cur_container;
adamc@759 1193 ctx->cur_container = tmp->data.subform.parent;
adamc@759 1194 tmp->data.subform.parent = NULL;
adamc@759 1195 }
adamc@759 1196
adamc@759 1197 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759 1198 input *inps;
adamc@759 1199
adamc@759 1200 if (n < 0)
adamc@759 1201 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094 1202 if (n >= ctx->app->inputs_len)
adamc@759 1203 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759 1204
adamc@759 1205 switch (INP(ctx)[n].kind) {
adamc@759 1206 case UNSET:
adamc@759 1207 uw_error(ctx, FATAL, "Missing subforms");
adamc@759 1208 case FIL:
adamc@759 1209 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759 1210 case NORMAL:
adamc@759 1211 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759 1212 case SUBFORM:
adamc@759 1213 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759 1214 case ENTRY:
adamc@759 1215 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759 1216 case SUBFORMS:
adamc@759 1217 inps = INP(ctx)[n].data.subforms.entries;
adamc@759 1218 if (inps) {
adamc@759 1219 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759 1220 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759 1221 return 1;
adamc@759 1222 } else
adamc@759 1223 return 0;
adamc@759 1224 default:
adamc@759 1225 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759 1226 }
adamc@759 1227 }
adamc@759 1228
adamc@759 1229 int uw_next_entry(uw_context ctx) {
adamc@759 1230 if (ctx->cur_container == NULL)
adamc@759 1231 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759 1232
adamc@759 1233 switch (ctx->cur_container->kind) {
adamc@759 1234 case UNSET:
adamc@759 1235 uw_error(ctx, FATAL, "Missing entry");
adamc@759 1236 case FIL:
adamc@759 1237 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759 1238 case NORMAL:
adamc@759 1239 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759 1240 case SUBFORM:
adamc@759 1241 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759 1242 case SUBFORMS:
adamc@759 1243 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759 1244 case ENTRY:
adamc@759 1245 if (ctx->cur_container->data.entry.next) {
adamc@759 1246 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759 1247 return 1;
adamc@759 1248 } else {
adamc@759 1249 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759 1250 return 0;
adamc@759 1251 }
adamc@759 1252 default:
adamc@759 1253 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759 1254 }
adamc@756 1255 }
adamc@756 1256
adamc@643 1257 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643 1258 ctx->script_header = s;
adamc@643 1259 }
adamc@643 1260
adamc@1094 1261 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094 1262 return ctx->app->url_prefix;
adamc@667 1263 }
adamc@667 1264
adamc@693 1265 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693 1266 ctx->needs_push = n;
adamc@693 1267 }
adamc@693 1268
adamc@736 1269 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736 1270 ctx->needs_sig = n;
adamc@736 1271 }
adamc@736 1272
adam@1936 1273 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936 1274 ctx->could_write_db = n;
adam@1936 1275 }
adam@1936 1276
adam@2056 1277 void uw_set_at_most_one_query(uw_context ctx, int n) {
adam@2056 1278 ctx->at_most_one_query = n;
adam@2056 1279 }
adam@2056 1280
adamc@667 1281
adam@1369 1282 static void uw_buffer_check_ctx(uw_context ctx, const char *kind, uw_buffer *b, size_t extra, const char *desc) {
adamc@666 1283 if (b->back - b->front < extra) {
adamc@666 1284 size_t desired = b->front - b->start + extra, next;
adamc@136 1285 char *new_heap;
adamc@136 1286
adamc@666 1287 next = b->back - b->start;
adamc@317 1288 if (next == 0)
adamc@317 1289 next = 1;
adamc@317 1290 for (; next < desired; next *= 2);
adamc@136 1291
adamc@1134 1292 if (next > b->max) {
adamc@1113 1293 if (desired <= b->max)
adamc@1113 1294 next = desired;
adamc@1113 1295 else
adamc@1113 1296 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134 1297 }
adamc@1113 1298
adamc@666 1299 new_heap = realloc(b->start, next);
adamc@666 1300 b->front = new_heap + (b->front - b->start);
adamc@666 1301 b->back = new_heap + next;
adamc@136 1302
adamc@667 1303 if (new_heap != b->start) {
adamc@666 1304 b->start = new_heap;
adam@1389 1305 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136 1306 }
adamc@136 1307
adamc@666 1308 b->start = new_heap;
adamc@136 1309 }
adamc@136 1310 }
adamc@136 1311
adamc@832 1312 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369 1313 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666 1314 }
adamc@666 1315
adamc@832 1316 char *uw_heap_front(uw_context ctx) {
adamc@832 1317 return ctx->heap.front;
adamc@832 1318 }
adamc@832 1319
adamc@832 1320 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832 1321 ctx->heap.front = fr;
adamc@832 1322 }
adamc@832 1323
adam@1782 1324 void uw_begin_initializing(uw_context ctx) {
adam@1782 1325 ctx->amInitializing = 1;
adam@1782 1326 }
adam@1782 1327
adam@1782 1328 void uw_end_initializing(uw_context ctx) {
adam@1782 1329 ctx->amInitializing = 0;
adam@1782 1330 }
adam@1782 1331
adam@2013 1332 static void align_heap(uw_context ctx) {
adam@2013 1333 size_t posn = ctx->heap.front - ctx->heap.start;
adam@2013 1334
adam@2017 1335 if (posn % sizeof(void *) != 0) {
adam@2017 1336 size_t bump = sizeof(void *) - posn % sizeof(void *);
adam@2013 1337 uw_check_heap(ctx, bump);
adam@2013 1338 ctx->heap.front += bump;
adam@2013 1339 }
adam@2013 1340 }
adam@2013 1341
adamc@311 1342 void *uw_malloc(uw_context ctx, size_t len) {
adam@2013 1343 // On some architectures, it's important that all word-sized memory accesses
adam@2013 1344 // be to word-aligned addresses, so we'll do a little bit of extra work here
adam@2013 1345 // in anticipation of a possible word-aligned access to the address we'll
adam@2013 1346 // return.
adam@2013 1347
adamc@136 1348 void *result;
adamc@136 1349
adam@1782 1350 if (ctx->amInitializing) {
adam@2017 1351 int error = posix_memalign(&result, sizeof(void *), len);
adam@2013 1352
adam@2013 1353 if (!error)
adam@1782 1354 return result;
adam@1782 1355 else
adam@2013 1356 uw_error(ctx, FATAL, "uw_malloc: posix_memalign() returns %d", error);
adam@1782 1357 } else {
adam@2013 1358 align_heap(ctx);
adam@2013 1359
adam@1782 1360 uw_check_heap(ctx, len);
adam@1782 1361
adam@1782 1362 result = ctx->heap.front;
adam@1782 1363 ctx->heap.front += len;
adam@1782 1364 return result;
adam@1782 1365 }
adamc@117 1366 }
adamc@117 1367
adamc@323 1368 void uw_begin_region(uw_context ctx) {
adam@2013 1369 align_heap(ctx);
adam@2013 1370
adamc@666 1371 regions *r = (regions *) ctx->heap.front;
adamc@323 1372
adamc@323 1373 uw_check_heap(ctx, sizeof(regions));
adamc@323 1374
adamc@666 1375 ctx->heap.front += sizeof(regions);
adamc@323 1376
adamc@323 1377 r->next = ctx->regions;
adamc@323 1378 ctx->regions = r;
adamc@323 1379 }
adamc@323 1380
adamc@323 1381 void uw_end_region(uw_context ctx) {
adamc@323 1382 regions *r = ctx->regions;
adamc@323 1383
adamc@323 1384 if (r == NULL)
adamc@323 1385 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323 1386
adamc@666 1387 ctx->heap.front = (char *) r;
adamc@323 1388 ctx->regions = r->next;
adamc@323 1389 }
adamc@323 1390
adamc@324 1391 void uw_memstats(uw_context ctx) {
adam@1369 1392 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369 1393 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369 1394 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369 1395 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324 1396 }
adamc@324 1397
adam@1915 1398 int uw_pagelen(uw_context ctx) {
adam@1915 1399 return ctx->page.front - ctx->page.start;
adam@1915 1400 }
adam@1915 1401
adamc@311 1402 int uw_send(uw_context ctx, int sock) {
adam@1949 1403 size_t target_length = (ctx->outHeaders.front - ctx->outHeaders.start) + 2 + (ctx->page.front - ctx->page.start);
adam@1949 1404
adam@1949 1405 if (ctx->output_buffer_size < target_length) {
adam@1949 1406 do {
adam@1949 1407 ctx->output_buffer_size *= 2;
adam@1949 1408 } while (ctx->output_buffer_size < target_length);
adam@1949 1409 ctx->output_buffer = realloc(ctx->output_buffer, ctx->output_buffer_size);
adam@1949 1410 }
adam@1949 1411
adam@1949 1412 memcpy(ctx->output_buffer, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adam@1949 1413 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start), "\r\n", 2);
adam@1949 1414 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start) + 2, ctx->page.start, ctx->page.front - ctx->page.start);
adam@1949 1415
adam@1949 1416 return uw_really_send(sock, ctx->output_buffer, target_length);
adamc@462 1417 }
adamc@462 1418
adamc@856 1419 int uw_print(uw_context ctx, int fd) {
adamc@856 1420 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856 1421
adamc@856 1422 if (n < 0)
adamc@856 1423 return n;
adamc@856 1424
adamc@856 1425 n = uw_really_write(fd, "\r\n", 2);
adamc@856 1426
adamc@856 1427 if (n < 0)
adamc@856 1428 return n;
adamc@856 1429
adamc@856 1430 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856 1431 }
adamc@856 1432
adamc@860 1433 int uw_output(uw_context ctx, int (*output)(void *data, char *buf, size_t len), void *data) {
adamc@860 1434 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860 1435
adamc@860 1436 if (n < 0)
adamc@860 1437 return n;
adamc@860 1438
adamc@860 1439 n = output(data, "\r\n", 2);
adamc@860 1440
adamc@860 1441 if (n < 0)
adamc@860 1442 return n;
adamc@860 1443
adamc@860 1444 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860 1445 }
adamc@860 1446
adamc@462 1447 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369 1448 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462 1449 }
adamc@462 1450
adamc@462 1451 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462 1452 int len = strlen(s);
adamc@462 1453
adamc@462 1454 uw_check_headers(ctx, len + 1);
adamc@666 1455 strcpy(ctx->outHeaders.front, s);
adamc@666 1456 ctx->outHeaders.front += len;
adamc@562 1457 }
adamc@562 1458
adam@1934 1459 int uw_has_contentLength(uw_context ctx) {
adam@1934 1460 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934 1461 }
adam@1934 1462
adamc@1110 1463 void uw_clear_headers(uw_context ctx) {
adam@1369 1464 uw_buffer_reset(&ctx->outHeaders);
adamc@1110 1465 }
adamc@1110 1466
adam@1932 1467 void uw_Basis_clear_page(uw_context ctx) {
adam@1932 1468 uw_buffer_reset(&ctx->page);
adam@1932 1469 }
adam@1932 1470
adamc@562 1471 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369 1472 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562 1473 }
adamc@562 1474
adamc@562 1475 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562 1476 int len = strlen(s);
adamc@562 1477
adamc@562 1478 uw_check_script(ctx, len + 1);
adamc@666 1479 strcpy(ctx->script.front, s);
adamc@666 1480 ctx->script.front += len;
adamc@562 1481 }
adamc@562 1482
adam@1446 1483 const char *uw_get_real_script(uw_context ctx) {
adam@1671 1484 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671 1485 uw_write_script(ctx, "sig=\"");
adam@1671 1486 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671 1487 uw_write_script(ctx, "\";");
adam@1671 1488 }
adam@1671 1489
adam@1446 1490 return ctx->script.start;
adam@1446 1491 }
adam@1446 1492
adamc@695 1493 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695 1494 if (s[0] == 0)
adamc@695 1495 return "";
adamc@695 1496 else {
adamc@695 1497 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695 1498 sprintf(r, " onload='%s'", s);
adamc@695 1499 return r;
adamc@695 1500 }
adamc@695 1501 }
adamc@695 1502
adamc@1042 1503 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042 1504 if (ctx->script_header[0] == 0)
adamc@1042 1505 return "";
adamc@1042 1506 else {
vshabanoff@1763 1507 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763 1508 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042 1509 return r;
adamc@1042 1510 }
adamc@1042 1511 }
adamc@1042 1512
adamc@694 1513 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736 1514 if (ctx->client == NULL) {
adamc@736 1515 if (ctx->needs_sig) {
adamc@1094 1516 char *sig = ctx->app->cookie_sig(ctx);
adamc@736 1517 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736 1518 sprintf(r, "sig=\"%s\";", sig);
adamc@736 1519 return r;
adamc@736 1520 }
adamc@736 1521 else
adamc@736 1522 return "";
adamc@736 1523 } else {
adamc@1094 1524 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094 1525 char *r = uw_malloc(ctx, 59 + 3 * INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736 1526 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552 1527 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552 1528 (ctx->isPost ? "true" : "false"),
adamc@682 1529 ctx->client->id,
adamc@682 1530 ctx->client->pass,
adamc@1094 1531 ctx->app->url_prefix,
adamc@1094 1532 ctx->app->timeout,
adamc@736 1533 ctx->needs_sig ? "sig=\"" : "",
adamc@736 1534 sig,
adamc@736 1535 ctx->needs_sig ? "\";" : "");
adamc@679 1536 return r;
adamc@668 1537 }
adamc@667 1538 }
adamc@667 1539
adamc@574 1540 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574 1541 char *r, *s2;
adamc@574 1542
adam@1446 1543 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574 1544
adamc@666 1545 r = s2 = ctx->heap.front;
adamc@574 1546 *s2++ = '"';
adamc@574 1547
adamc@574 1548 for (; *s; s++) {
adam@1286 1549 unsigned char c = *s;
adamc@574 1550
adamc@574 1551 switch (c) {
adamc@574 1552 case '"':
adamc@574 1553 strcpy(s2, "\\\"");
adamc@574 1554 s2 += 2;
adamc@574 1555 break;
adamc@1027 1556 case '\'':
adamc@1027 1557 strcpy(s2, "\\047");
adamc@1027 1558 s2 += 4;
adamc@1027 1559 break;
adamc@574 1560 case '\\':
adamc@574 1561 strcpy(s2, "\\\\");
adamc@574 1562 s2 += 2;
adamc@574 1563 break;
adam@1457 1564 case '<':
adam@1457 1565 strcpy(s2, "\\074");
adam@1457 1566 s2 += 4;
adam@1457 1567 break;
adamc@574 1568 default:
adam@1286 1569 if (isprint((int)c) || c >= 128)
adamc@574 1570 *s2++ = c;
adamc@574 1571 else {
adam@1429 1572 sprintf(s2, "\\%03o", c);
adamc@574 1573 s2 += 4;
adamc@574 1574 }
adamc@574 1575 }
adamc@574 1576 }
adamc@574 1577
adamc@574 1578 strcpy(s2, "\"");
adamc@910 1579 ctx->heap.front = s2 + 2;
adamc@574 1580 return r;
adamc@574 1581 }
adamc@574 1582
adam@1286 1583 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286 1584 unsigned char c = c1;
adamc@1025 1585 char *r, *s2;
adamc@1025 1586
adam@1446 1587 uw_check_heap(ctx, 7);
adamc@1025 1588
adamc@1025 1589 r = s2 = ctx->heap.front;
adamc@1025 1590 *s2++ = '"';
adamc@1025 1591
adamc@1025 1592 switch (c) {
adamc@1025 1593 case '"':
adamc@1025 1594 strcpy(s2, "\\\"");
adamc@1025 1595 s2 += 2;
adamc@1025 1596 break;
adamc@1027 1597 case '\'':
adamc@1027 1598 strcpy(s2, "\\047");
adamc@1027 1599 s2 += 4;
adamc@1027 1600 break;
adamc@1025 1601 case '\\':
adamc@1025 1602 strcpy(s2, "\\\\");
adamc@1025 1603 s2 += 2;
adamc@1025 1604 break;
adam@1457 1605 case '<':
adam@1457 1606 strcpy(s2, "\\074");
adam@1457 1607 s2 += 4;
adam@1457 1608 break;
adamc@1025 1609 default:
adam@1286 1610 if (isprint((int)c) || c >= 128)
adamc@1025 1611 *s2++ = c;
adamc@1025 1612 else {
adam@1429 1613 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025 1614 s2 += 4;
adamc@1025 1615 }
adamc@1025 1616 }
adamc@1025 1617
adamc@1025 1618 strcpy(s2, "\"");
adamc@1025 1619 ctx->heap.front = s2 + 2;
adamc@1025 1620 return r;
adamc@1025 1621 }
adamc@1025 1622
adamc@574 1623 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574 1624 char *r, *s2;
adamc@574 1625
adam@1446 1626 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574 1627
adamc@666 1628 r = s2 = ctx->script.front;
adamc@574 1629 *s2++ = '"';
adamc@574 1630
adamc@574 1631 for (; *s; s++) {
adam@1286 1632 unsigned char c = *s;
adamc@574 1633
adamc@574 1634 switch (c) {
adamc@577 1635 case '\'':
adamc@1027 1636 strcpy(s2, "\\");
adamc@574 1637 s2 += 2;
adamc@574 1638 break;
adamc@574 1639 case '\\':
adamc@574 1640 strcpy(s2, "\\\\");
adamc@574 1641 s2 += 2;
adamc@574 1642 break;
adam@1457 1643 case '<':
adam@1457 1644 strcpy(s2, "\\074");
adam@1457 1645 s2 += 4;
adam@1457 1646 break;
adamc@574 1647 default:
adam@1286 1648 if (isprint((int)c) || c >= 128)
adamc@574 1649 *s2++ = c;
adamc@574 1650 else {
adam@1429 1651 sprintf(s2, "\\%03o", c);
adamc@574 1652 s2 += 4;
adamc@574 1653 }
adamc@574 1654 }
adamc@574 1655 }
adamc@574 1656
adamc@574 1657 strcpy(s2, "\"");
adamc@666 1658 ctx->script.front = s2 + 1;
adamc@574 1659 return r;
adamc@574 1660 }
adamc@574 1661
adamc@682 1662 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1663 if (ctx->client == NULL || chn.cli != ctx->client->id)
adamc@682 1664 return "null";
adamc@682 1665 else {
adamc@682 1666 int len;
adamc@682 1667 char *r;
adamc@682 1668
adamc@682 1669 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1670 r = ctx->heap.front;
adamc@682 1671 sprintf(r, "%u%n", chn.chn, &len);
adamc@682 1672 ctx->heap.front += len+1;
adamc@682 1673 return r;
adamc@682 1674 }
adamc@682 1675 }
adamc@682 1676
adam@1446 1677 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577 1678 int len;
adamc@577 1679 size_t s_len = strlen(s);
adamc@562 1680
grrwlf@1998 1681 if(ctx->id < 0)
grrwlf@1998 1682 uw_error(ctx, FATAL, "Attempt to create client source using inappropriate context");
grrwlf@1998 1683
adam@1446 1684 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446 1685 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666 1686 ctx->script.front += len;
adamc@666 1687 strcpy(ctx->script.front, s);
adamc@666 1688 ctx->script.front += s_len;
adamc@970 1689 strcpy(ctx->script.front, "));");
adamc@972 1690 ctx->script.front += 3;
adamc@562 1691
adam@1446 1692 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446 1693 return r;
adam@1446 1694 }
adam@1446 1695
adam@1446 1696 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577 1697 int len;
adamc@577 1698 size_t s_len = strlen(s);
adamc@577 1699
adam@1446 1700 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446 1701 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666 1702 ctx->script.front += len;
adamc@666 1703 strcpy(ctx->script.front, s);
adamc@666 1704 ctx->script.front += s_len;
adamc@970 1705 strcpy(ctx->script.front, "));");
adamc@972 1706 ctx->script.front += 3;
adamc@577 1707
adamc@577 1708 return uw_unit_v;
adamc@577 1709 }
adamc@577 1710
adamc@311 1711 static void uw_check(uw_context ctx, size_t extra) {
adam@1369 1712 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117 1713 }
adamc@117 1714
adamc@311 1715 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666 1716 *(ctx->page.front)++ = c;
adam@1413 1717 *ctx->page.front = 0;
adamc@117 1718 }
adamc@117 1719
adamc@311 1720 void uw_writec(uw_context ctx, char c) {
adam@1413 1721 uw_check(ctx, 2);
adamc@311 1722 uw_writec_unsafe(ctx, c);
adamc@117 1723 }
adamc@117 1724
adam@2085 1725 void uw_Basis_writec(uw_context ctx, char c) {
adam@2085 1726 uw_writec(ctx, c);
adam@2085 1727 }
adam@2085 1728
adamc@311 1729 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117 1730 int len = strlen(s);
adamc@666 1731 memcpy(ctx->page.front, s, len);
adamc@666 1732 ctx->page.front += len;
adamc@117 1733 }
adamc@117 1734
adamc@311 1735 void uw_write(uw_context ctx, const char* s) {
adamc@311 1736 uw_check(ctx, strlen(s) + 1);
adamc@311 1737 uw_write_unsafe(ctx, s);
adamc@666 1738 *ctx->page.front = 0;
adamc@102 1739 }
adamc@106 1740
ziv@2204 1741 void uw_recordingStart(uw_context ctx) {
ziv@2262 1742 if (ctx->numRecording++ == 0) {
ziv@2262 1743 ctx->recordingOffset = ctx->page.front - ctx->page.start;
ziv@2262 1744 }
ziv@2204 1745 }
ziv@2204 1746
ziv@2204 1747 char *uw_recordingRead(uw_context ctx) {
ziv@2262 1748 // Only the outermost recorder can read unless the recording is empty.
ziv@2262 1749 char *recording = ctx->page.start + ctx->recordingOffset;
ziv@2262 1750 if (--ctx->numRecording > 0 && recording != ctx->page.front) {
ziv@2262 1751 return NULL;
ziv@2262 1752 }
ziv@2262 1753 return strdup(recording);
ziv@2204 1754 }
ziv@2204 1755
adamc@311 1756 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136 1757 char *result;
adamc@136 1758 int len;
adamc@311 1759 uw_check_heap(ctx, INTS_MAX);
adamc@666 1760 result = ctx->heap.front;
adamc@276 1761 sprintf(result, "%lld%n", n, &len);
adamc@666 1762 ctx->heap.front += len+1;
adamc@136 1763 return result;
adamc@106 1764 }
adamc@106 1765
adamc@311 1766 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136 1767 char *result;
adamc@136 1768 int len;
adamc@311 1769 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1770 result = ctx->heap.front;
adam@1920 1771 sprintf(result, "%.16g%n", n, &len);
adamc@666 1772 ctx->heap.front += len+1;
adamc@136 1773 return result;
adamc@106 1774 }
adamc@106 1775
adamc@311 1776 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136 1777 int len = strlen(s);
adamc@136 1778 char *result, *p;
adamc@311 1779 uw_check_heap(ctx, len * 6 + 1);
adamc@136 1780
adamc@666 1781 result = p = ctx->heap.front;
adamc@136 1782
adamc@136 1783 for (; *s; s++) {
adamc@1054 1784 unsigned char c = *s;
adamc@136 1785
adamc@136 1786 if (c == '"') {
adamc@136 1787 strcpy(p, "&quot;");
adamc@136 1788 p += 6;
adamc@136 1789 } else if (c == '&') {
adamc@136 1790 strcpy(p, "&amp;");
adamc@136 1791 p += 5;
adamc@136 1792 }
adamc@1059 1793 else
adamc@136 1794 *p++ = c;
adamc@136 1795 }
adamc@136 1796
adamc@137 1797 *p++ = 0;
adamc@666 1798 ctx->heap.front = p;
adamc@136 1799 return result;
adamc@106 1800 }
adamc@106 1801
adamc@1011 1802 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011 1803 char *result, *p;
adamc@1011 1804 uw_check_heap(ctx, 7);
adamc@1011 1805
adamc@1011 1806 result = p = ctx->heap.front;
adamc@1011 1807
adamc@1011 1808 if (c == '"') {
adamc@1011 1809 strcpy(p, "&quot;");
adamc@1011 1810 p += 6;
adamc@1011 1811 } else if (c == '&') {
adamc@1011 1812 strcpy(p, "&amp;");
adamc@1011 1813 p += 5;
adamc@1011 1814 }
adamc@1059 1815 else
adamc@1011 1816 *p++ = c;
adamc@1011 1817
adamc@1011 1818 *p++ = 0;
adamc@1011 1819 ctx->heap.front = p;
adamc@1011 1820 return result;
adamc@1011 1821 }
adamc@1011 1822
adamc@721 1823 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721 1824 return s;
adamc@721 1825 }
adamc@721 1826
adamc@311 1827 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117 1828 int len;
adamc@117 1829
adamc@666 1830 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1831 ctx->page.front += len;
adamc@106 1832 }
adamc@106 1833
adamc@428 1834 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311 1835 uw_check(ctx, INTS_MAX);
adamc@311 1836 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428 1837
adamc@428 1838 return uw_unit_v;
adamc@106 1839 }
adamc@106 1840
adamc@428 1841 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117 1842 int len;
adamc@117 1843
adamc@311 1844 uw_check(ctx, FLOATS_MAX);
adamc@666 1845 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1846 ctx->page.front += len;
adamc@428 1847
adamc@428 1848 return uw_unit_v;
adamc@117 1849 }
adamc@117 1850
adamc@428 1851 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311 1852 uw_check(ctx, strlen(s) * 6);
adamc@117 1853
adamc@106 1854 for (; *s; s++) {
adamc@1054 1855 unsigned char c = *s;
adamc@106 1856
adamc@106 1857 if (c == '"')
adamc@311 1858 uw_write_unsafe(ctx, "&quot;");
adamc@136 1859 else if (c == '&')
adamc@311 1860 uw_write_unsafe(ctx, "&amp;");
adamc@1059 1861 else
adamc@311 1862 uw_writec_unsafe(ctx, c);
adamc@106 1863 }
adamc@428 1864
adamc@428 1865 return uw_unit_v;
adamc@106 1866 }
adamc@120 1867
adamc@1011 1868 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011 1869 uw_check(ctx, 6);
adamc@1011 1870
adamc@1011 1871 if (c == '"')
adamc@1011 1872 uw_write_unsafe(ctx, "&quot;");
adamc@1011 1873 else if (c == '&')
adamc@1011 1874 uw_write_unsafe(ctx, "&amp;");
adamc@1059 1875 else
adamc@1011 1876 uw_writec_unsafe(ctx, c);
adamc@1011 1877
adamc@1011 1878 return uw_unit_v;
adamc@1011 1879 }
adamc@1011 1880
adamc@120 1881
adamc@311 1882 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137 1883 int len;
adamc@137 1884 char *r;
adamc@137 1885
adamc@311 1886 uw_check_heap(ctx, INTS_MAX);
adamc@666 1887 r = ctx->heap.front;
adamc@276 1888 sprintf(r, "%lld%n", n, &len);
adamc@666 1889 ctx->heap.front += len+1;
adamc@137 1890 return r;
adamc@120 1891 }
adamc@120 1892
adamc@682 1893 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1894 if (ctx->client == NULL || chn.cli != ctx->client->id)
adamc@682 1895 return "";
adamc@682 1896 else {
adamc@682 1897 int len;
adamc@682 1898 char *r;
adamc@679 1899
adamc@682 1900 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1901 r = ctx->heap.front;
adamc@682 1902 sprintf(r, "%u%n", chn.chn, &len);
adamc@682 1903 ctx->heap.front += len+1;
adamc@682 1904 return r;
adamc@682 1905 }
adamc@679 1906 }
adamc@679 1907
adamc@311 1908 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137 1909 int len;
adamc@137 1910 char *r;
adamc@137 1911
adamc@311 1912 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1913 r = ctx->heap.front;
adamc@137 1914 sprintf(r, "%g%n", n, &len);
adamc@666 1915 ctx->heap.front += len+1;
adamc@137 1916 return r;
adamc@120 1917 }
adamc@120 1918
adamc@311 1919 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137 1920 char *r, *p;
adamc@137 1921
adamc@925 1922 if (s[0] == '\0')
adamc@925 1923 return "_";
adamc@925 1924
adamc@925 1925 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925 1926
adamc@925 1927 r = p = ctx->heap.front;
adamc@925 1928 if (s[0] == '_')
adamc@925 1929 *p++ = '_';
adamc@925 1930
adamc@925 1931 for (; *s; s++) {
adamc@1087 1932 unsigned char c = *s;
adamc@137 1933
adamc@137 1934 if (c == ' ')
adamc@137 1935 *p++ = '+';
adamc@137 1936 else if (isalnum(c))
adamc@137 1937 *p++ = c;
adamc@137 1938 else {
adamc@1259 1939 sprintf(p, ".%02X", c);
adamc@137 1940 p += 3;
adamc@137 1941 }
adamc@137 1942 }
adamc@137 1943
adamc@137 1944 *p++ = 0;
adamc@666 1945 ctx->heap.front = p;
adamc@137 1946 return r;
adamc@120 1947 }
adamc@120 1948
adamc@311 1949 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 1950 if (b == uw_Basis_False)
adamc@186 1951 return "0";
adamc@186 1952 else
adamc@186 1953 return "1";
adamc@186 1954 }
adamc@186 1955
adam@1620 1956 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620 1957 char *r;
adam@1620 1958 int len;
adam@1620 1959 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620 1960 r = ctx->heap.front;
adam@1620 1961 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620 1962 ctx->heap.front += len+1;
adam@1620 1963 return r;
adam@1620 1964 }
adam@1620 1965
adamc@311 1966 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120 1967 int len;
adamc@120 1968
adamc@666 1969 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1970 ctx->page.front += len;
adamc@120 1971 }
adamc@120 1972
adamc@428 1973 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311 1974 uw_check(ctx, INTS_MAX);
adamc@311 1975 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428 1976
adamc@428 1977 return uw_unit_v;
adamc@120 1978 }
adamc@120 1979
adamc@682 1980 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1981 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682 1982 int len;
phurst@1981 1983
adamc@682 1984 uw_check(ctx, INTS_MAX + 1);
adamc@682 1985 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682 1986 ctx->page.front += len;
adamc@682 1987 }
phurst@1981 1988
adamc@679 1989 return uw_unit_v;
adamc@679 1990 }
adamc@679 1991
adamc@428 1992 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120 1993 int len;
adamc@120 1994
adamc@311 1995 uw_check(ctx, FLOATS_MAX);
adamc@666 1996 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1997 ctx->page.front += len;
adamc@428 1998
adamc@428 1999 return uw_unit_v;
adamc@120 2000 }
adamc@120 2001
adamc@488 2002 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376 2003 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488 2004 }
adamc@488 2005
adam@1404 2006 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404 2007 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404 2008 }
adam@1404 2009
adamc@428 2010 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925 2011 if (s[0] == '\0') {
adamc@925 2012 uw_check(ctx, 1);
adamc@925 2013 uw_writec_unsafe(ctx, '_');
adamc@925 2014 return uw_unit_v;
adamc@925 2015 }
adamc@925 2016
adamc@925 2017 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925 2018
adamc@925 2019 if (s[0] == '_')
adamc@925 2020 uw_writec_unsafe(ctx, '_');
adamc@120 2021
adamc@120 2022 for (; *s; s++) {
adamc@1087 2023 unsigned char c = *s;
adamc@120 2024
adamc@120 2025 if (c == ' ')
adamc@311 2026 uw_writec_unsafe(ctx, '+');
adamc@120 2027 else if (isalnum(c))
adamc@311 2028 uw_writec_unsafe(ctx, c);
adamc@120 2029 else {
adamc@1259 2030 sprintf(ctx->page.front, ".%02X", c);
adamc@666 2031 ctx->page.front += 3;
adamc@120 2032 }
adamc@120 2033 }
adamc@428 2034
adamc@428 2035 return uw_unit_v;
adamc@120 2036 }
adamc@120 2037
adamc@428 2038 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311 2039 if (b == uw_Basis_False)
adamc@311 2040 uw_writec(ctx, '0');
adamc@186 2041 else
adamc@311 2042 uw_writec(ctx, '1');
adamc@428 2043
adamc@428 2044 return uw_unit_v;
adamc@186 2045 }
adamc@186 2046
adam@1620 2047 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620 2048 int len;
phurst@1981 2049
adam@1620 2050 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620 2051 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620 2052 ctx->page.front += len;
phurst@1981 2053
adam@1620 2054 return uw_unit_v;
adam@1620 2055 }
adam@1620 2056
adamc@120 2057
adamc@311 2058 static char *uw_unurlify_advance(char *s) {
adamc@144 2059 char *new_s = strchr(s, '/');
adamc@120 2060
adamc@120 2061 if (new_s)
adamc@120 2062 *new_s++ = 0;
adamc@120 2063 else
adamc@144 2064 new_s = strchr(s, 0);
adamc@144 2065
adamc@144 2066 return new_s;
adamc@144 2067 }
adamc@144 2068
adamc@311 2069 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311 2070 char *new_s = uw_unurlify_advance(*s);
adamc@311 2071 uw_Basis_int r;
adamc@120 2072
adamc@276 2073 r = atoll(*s);
adamc@120 2074 *s = new_s;
adamc@120 2075 return r;
adamc@120 2076 }
adamc@120 2077
adamc@311 2078 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311 2079 char *new_s = uw_unurlify_advance(*s);
adamc@311 2080 uw_Basis_float r;
adamc@120 2081
adamc@120 2082 r = atof(*s);
adamc@120 2083 *s = new_s;
adamc@120 2084 return r;
adamc@120 2085 }
adamc@120 2086
adamc@488 2087 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365 2088 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365 2089 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365 2090 return r;
adamc@488 2091 }
adamc@488 2092
adamc@1023 2093 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char *r, char *s) {
adamc@927 2094 char *s1, *s2 = s;
adamc@144 2095 int n;
adamc@136 2096
adamc@1023 2097 if (!fromClient) {
adamc@1023 2098 if (*s2 == '_')
adamc@1023 2099 ++s2;
adamc@1259 2100 else if ((s2[0] == '%' || s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' || s2[2] == 'F'))
adamc@1023 2101 s2 += 3;
adamc@1023 2102 }
adamc@925 2103
adamc@927 2104 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087 2105 unsigned char c = *s2;
adamc@136 2106
adamc@136 2107 switch (c) {
adamc@136 2108 case '+':
adamc@136 2109 *s1 = ' ';
adamc@136 2110 break;
adamc@136 2111 case '%':
adamc@169 2112 if (s2[1] == 0)
adamc@311 2113 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169 2114 if (s2[2] == 0)
adamc@311 2115 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169 2116 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444 2117 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136 2118 *s1 = n;
adamc@136 2119 s2 += 2;
adamc@136 2120 break;
adamc@1259 2121 case '.':
adamc@1259 2122 if (!fromClient) {
adamc@1259 2123 if (s2[1] == 0)
adamc@1259 2124 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259 2125 if (s2[2] == 0)
adamc@1259 2126 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259 2127 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444 2128 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259 2129 *s1 = n;
adamc@1259 2130 s2 += 2;
adamc@1259 2131 break;
adamc@1259 2132 }
adamc@136 2133 default:
adamc@136 2134 *s1 = c;
adamc@136 2135 }
adamc@136 2136 }
adamc@136 2137 *s1++ = 0;
adamc@144 2138 return s1;
adamc@144 2139 }
adamc@144 2140
adamc@311 2141 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311 2142 char *new_s = uw_unurlify_advance(*s);
adamc@311 2143 uw_Basis_bool r;
phurst@1981 2144
adamc@186 2145 if (*s[0] == 0 || !strcmp(*s, "0") || !strcmp(*s, "off"))
adamc@311 2146 r = uw_Basis_False;
adamc@186 2147 else
adamc@311 2148 r = uw_Basis_True;
adamc@186 2149
adamc@186 2150 *s = new_s;
adamc@186 2151 return r;
adamc@186 2152 }
adamc@186 2153
adamc@311 2154 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311 2155 char *new_s = uw_unurlify_advance(*s);
adamc@1134 2156 char *r;
adamc@1134 2157 int len;
adamc@144 2158
adamc@200 2159 len = strlen(*s);
adamc@311 2160 uw_check_heap(ctx, len + 1);
adamc@144 2161
adamc@666 2162 r = ctx->heap.front;
adamc@1023 2163 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023 2164 *s = new_s;
adamc@1023 2165 return r;
adamc@1023 2166 }
adamc@1023 2167
adamc@1109 2168 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109 2169 *s = uw_unurlify_advance(*s);
adamc@1109 2170 return uw_unit_v;
adamc@1109 2171 }
adamc@1109 2172
adamc@1023 2173 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023 2174 char *new_s = uw_unurlify_advance(*s);
adamc@1134 2175 char *r;
adamc@1134 2176 int len;
adamc@1023 2177
adamc@1023 2178 len = strlen(*s);
adamc@1023 2179 uw_check_heap(ctx, len + 1);
adamc@1023 2180
adamc@1023 2181 r = ctx->heap.front;
adamc@1023 2182 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136 2183 *s = new_s;
adamc@136 2184 return r;
adamc@120 2185 }
adamc@135 2186
adamc@135 2187
adamc@311 2188 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286 2189 int len;
adamc@286 2190 char *r;
adamc@286 2191
adamc@311 2192 uw_check_heap(ctx, INTS_MAX);
adamc@666 2193 r = ctx->heap.front;
adamc@286 2194 sprintf(r, "%lld%n", n, &len);
adamc@666 2195 ctx->heap.front += len+1;
adamc@286 2196 return r;
adamc@286 2197 }
adamc@286 2198
adamc@428 2199 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286 2200 int len;
adamc@286 2201
adamc@311 2202 uw_check(ctx, INTS_MAX);
adamc@666 2203 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 2204 ctx->page.front += len;
phurst@1981 2205
adamc@428 2206 return uw_unit_v;
adamc@286 2207 }
adamc@286 2208
adam@1358 2209 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358 2210 unsigned int n = ch;
adam@1358 2211 int len;
adam@1358 2212 char *r;
adam@1358 2213
adam@1358 2214 uw_check_heap(ctx, INTS_MAX+3);
adam@1358 2215 r = ctx->heap.front;
adam@1358 2216 sprintf(r, "&#%u;%n", n, &len);
adam@1358 2217 ctx->heap.front += len+1;
adam@1358 2218 return r;
adam@1358 2219 }
adam@1358 2220
adam@1358 2221 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358 2222 unsigned int n = ch;
adam@1358 2223 int len;
adam@1358 2224
adam@1358 2225 uw_check(ctx, INTS_MAX+3);
adam@1358 2226 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358 2227 ctx->page.front += len;
adam@1358 2228 return uw_unit_v;
adam@1358 2229 }
adam@1358 2230
adamc@311 2231 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286 2232 int len;
adamc@286 2233 char *r;
adamc@286 2234
adamc@311 2235 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 2236 r = ctx->heap.front;
adamc@286 2237 sprintf(r, "%g%n", n, &len);
adamc@666 2238 ctx->heap.front += len+1;
adamc@286 2239 return r;
adamc@286 2240 }
adamc@286 2241
adamc@428 2242 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286 2243 int len;
adamc@286 2244
adamc@311 2245 uw_check(ctx, FLOATS_MAX);
adamc@666 2246 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 2247 ctx->page.front += len;
adamc@428 2248
adamc@428 2249 return uw_unit_v;
adamc@286 2250 }
adamc@286 2251
adam@1365 2252 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360 2253 int len;
adam@1360 2254 char *r;
adam@1360 2255
adam@1360 2256 uw_check_heap(ctx, INTS_MAX);
adam@1360 2257 r = ctx->heap.front;
adamc@1377 2258 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360 2259 ctx->heap.front += len+1;
adam@1360 2260 return r;
adam@1360 2261 }
adam@1360 2262
adam@1365 2263 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360 2264 int len;
adam@1360 2265
adam@1360 2266 uw_check(ctx, INTS_MAX);
adam@1360 2267 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360 2268 ctx->page.front += len;
phurst@1981 2269
adam@1360 2270 return uw_unit_v;
adam@1360 2271 }
adam@1360 2272
adam@1444 2273 char *uw_Basis_htmlifyString(uw_context ctx, const char *s) {
adamc@137 2274 char *r, *s2;
adamc@137 2275
adamc@311 2276 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137 2277
adamc@666 2278 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054 2279 unsigned char c = *s;
adamc@137 2280
adamc@137 2281 switch (c) {
adamc@137 2282 case '<':
adamc@137 2283 strcpy(s2, "&lt;");
adamc@137 2284 s2 += 4;
adamc@137 2285 break;
adamc@137 2286 case '&':
adamc@137 2287 strcpy(s2, "&amp;");
adamc@137 2288 s2 += 5;
adamc@137 2289 break;
adamc@137 2290 default:
adamc@1059 2291 *s2++ = c;
adamc@137 2292 }
adamc@137 2293 }
adamc@137 2294
adamc@137 2295 *s2++ = 0;
adamc@666 2296 ctx->heap.front = s2;
adamc@137 2297 return r;
adamc@135 2298 }
adamc@135 2299
adamc@428 2300 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321 2301 uw_check(ctx, strlen(s) * 6);
adamc@135 2302
adamc@135 2303 for (; *s; s++) {
adamc@1054 2304 unsigned char c = *s;
adamc@135 2305
adamc@135 2306 switch (c) {
adamc@135 2307 case '<':
adamc@311 2308 uw_write_unsafe(ctx, "&lt;");
adamc@135 2309 break;
adamc@135 2310 case '&':
adamc@311 2311 uw_write_unsafe(ctx, "&amp;");
adamc@135 2312 break;
adamc@135 2313 default:
adamc@1059 2314 uw_writec_unsafe(ctx, c);
adamc@135 2315 }
adamc@135 2316 }
adamc@428 2317
adamc@428 2318 return uw_unit_v;
adamc@135 2319 }
adamc@180 2320
adamc@311 2321 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 2322 if (b == uw_Basis_False)
adamc@286 2323 return "False";
adamc@286 2324 else
adamc@286 2325 return "True";
adamc@286 2326 }
adamc@286 2327
adamc@428 2328 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311 2329 if (b == uw_Basis_False) {
adamc@311 2330 uw_check(ctx, 6);
adamc@666 2331 strcpy(ctx->page.front, "False");
adamc@666 2332 ctx->page.front += 5;
adamc@286 2333 } else {
adamc@311 2334 uw_check(ctx, 5);
adamc@666 2335 strcpy(ctx->page.front, "True");
adamc@666 2336 ctx->page.front += 4;
adamc@286 2337 }
adamc@428 2338
adamc@428 2339 return uw_unit_v;
adamc@286 2340 }
adamc@286 2341
adamc@436 2342 #define TIME_FMT "%x %X"
adamc@438 2343 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632 2344 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436 2345
adam@1629 2346 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629 2347
adamc@436 2348 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629 2349 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436 2350 }
adamc@436 2351
adamc@436 2352 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629 2353 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436 2354 }
adamc@436 2355
adam@1446 2356 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446 2357 int len;
adam@1446 2358 char *r;
adam@1446 2359
adam@1446 2360 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446 2361 r = ctx->heap.front;
adam@1446 2362 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446 2363 ctx->heap.front += len+1;
adam@1446 2364 return r;
adam@1446 2365 }
adam@1446 2366
adam@1446 2367 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446 2368 int len;
adam@1446 2369
adam@1446 2370 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446 2371 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446 2372 ctx->page.front += len;
phurst@1981 2373
adam@1446 2374 return uw_unit_v;
adam@1446 2375 }
adam@1446 2376
adamc@821 2377 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388 2378 while (n >= 0) {
adam@1388 2379 if (*s == 0)
adam@1388 2380 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388 2381
adam@1388 2382 if (n == 0)
adam@1388 2383 return *s;
adam@1388 2384
adam@1388 2385 --n;
adam@1388 2386 ++s;
adam@1388 2387 }
adam@1388 2388
adam@1388 2389 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821 2390 }
adamc@821 2391
adamc@821 2392 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388 2393 while (n >= 0) {
adam@1388 2394 if (*s == 0 || n == 0)
adam@1388 2395 return s;
adam@1388 2396
adam@1388 2397 --n;
adam@1388 2398 ++s;
adam@1388 2399 }
adam@1388 2400
adam@1388 2401 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821 2402 }
adamc@821 2403
adamc@828 2404 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828 2405 return strlen(s);
adamc@828 2406 }
adamc@828 2407
adam@1388 2408 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388 2409 while (n > 0) {
adam@1388 2410 if (*s == 0)
adam@1388 2411 return uw_Basis_False;
adam@1388 2412
adam@1388 2413 --n;
adam@1388 2414 ++s;
adam@1388 2415 }
adam@1388 2416
adam@1388 2417 return uw_Basis_True;
adam@1388 2418 }
adam@1388 2419
adamc@829 2420 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829 2421 return strchr(s, ch);
adamc@829 2422 }
adamc@829 2423
adamc@831 2424 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831 2425 return strcspn(s, chs);
adamc@831 2426 }
adamc@831 2427
adamc@829 2428 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829 2429 uw_Basis_string r = strchr(s, ch);
adamc@829 2430 if (r == NULL)
adamc@829 2431 return NULL;
adamc@829 2432 else {
adamc@829 2433 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829 2434 *nr = r - s;
adamc@829 2435 return nr;
adamc@829 2436 }
adamc@829 2437 }
adamc@829 2438
adam@1390 2439 uw_Basis_int *uw_Basis_strsindex(uw_context ctx, const char *haystack, const char *needle) {
adam@1390 2440 uw_Basis_string r = strstr(haystack, needle);
adam@1390 2441 if (r == NULL)
adam@1390 2442 return NULL;
adam@1390 2443 else {
adam@1390 2444 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390 2445 *nr = r - haystack;
adam@1390 2446 return nr;
adam@1390 2447 }
adam@1390 2448 }
adam@1390 2449
adamc@311 2450 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828 2451 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180 2452 char *s;
adamc@180 2453
adamc@311 2454 uw_check_heap(ctx, len);
adamc@180 2455
adamc@666 2456 s = ctx->heap.front;
adamc@180 2457
adamc@180 2458 strcpy(s, s1);
adamc@180 2459 strcat(s, s2);
adamc@666 2460 ctx->heap.front += len;
adamc@180 2461
adamc@180 2462 return s;
adamc@180 2463 }
adamc@278 2464
adamc@829 2465 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829 2466 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829 2467
adamc@829 2468 if (start < 0)
adamc@829 2469 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829 2470 if (len < 0)
adamc@829 2471 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829 2472 if (start + len > full_len)
adamc@829 2473 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829 2474
adamc@829 2475 if (start + len == full_len)
adamc@829 2476 return &s[start];
adamc@829 2477 else {
adamc@829 2478 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959 2479 memcpy(r, s+start, len);
adamc@829 2480 r[len] = 0;
adamc@829 2481 return r;
adamc@829 2482 }
phurst@1981 2483
adamc@829 2484 }
adamc@829 2485
adamc@1023 2486 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023 2487 char *r;
adamc@1023 2488
adamc@1023 2489 uw_check_heap(ctx, 2);
adamc@1023 2490 r = ctx->heap.front;
adamc@1023 2491 r[0] = ch;
adamc@1023 2492 r[1] = 0;
adamc@1023 2493
adamc@1023 2494 ctx->heap.front += 2;
adamc@1023 2495
adamc@1023 2496 return r;
adamc@1023 2497 }
adamc@1023 2498
adamc@737 2499 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828 2500 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278 2501 char *s;
adamc@278 2502
adamc@311 2503 uw_check_heap(ctx, len);
adamc@278 2504
adamc@666 2505 s = ctx->heap.front;
adamc@278 2506
adamc@278 2507 strcpy(s, s1);
adamc@666 2508 ctx->heap.front += len;
adamc@278 2509
adamc@278 2510 return s;
adamc@278 2511 }
adamc@280 2512
adam@1295 2513 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295 2514 if (ctx->error_message[0]) {
adam@1295 2515 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295 2516 ctx->error_message[0] = 0;
adam@1295 2517 return s;
adam@1295 2518 } else
adam@1295 2519 return NULL;
adam@1295 2520 }
adam@1295 2521
adamc@737 2522 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493 2523 if (s1)
adamc@737 2524 return uw_strdup(ctx, s1);
adamc@493 2525 else
adamc@493 2526 return NULL;
adamc@493 2527 }
adamc@493 2528
adamc@742 2529 char *uw_memdup(uw_context ctx, const char *p, size_t len) {
adamc@742 2530 char *r = uw_malloc(ctx, len);
adamc@742 2531 memcpy(r, p, len);
adamc@742 2532 return r;
adamc@742 2533 }
adamc@280 2534
adamc@879 2535 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879 2536
adamc@311 2537 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281 2538 int len;
adamc@281 2539 char *r;
adamc@281 2540
adamc@311 2541 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666 2542 r = ctx->heap.front;
adamc@879 2543 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666 2544 ctx->heap.front += len+1;
adamc@281 2545 return r;
adamc@281 2546 }
adamc@281 2547
adamc@467 2548 char *uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int *n) {
adamc@467 2549 if (n == NULL)
adamc@467 2550 return "NULL";
adamc@467 2551 else
adamc@467 2552 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467 2553 }
adamc@467 2554
adam@1920 2555 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879 2556
adamc@311 2557 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281 2558 int len;
adamc@281 2559 char *r;
adamc@281 2560
adamc@311 2561 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666 2562 r = ctx->heap.front;
adamc@879 2563 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666 2564 ctx->heap.front += len+1;
adamc@281 2565 return r;
adamc@281 2566 }
adamc@281 2567
adamc@467 2568 char *uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float *n) {
adamc@467 2569 if (n == NULL)
adamc@467 2570 return "NULL";
adamc@467 2571 else
adamc@467 2572 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467 2573 }
adamc@467 2574
adam@1834 2575 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879 2576 char *uw_sqlsuffixString = "::text";
adamc@1011 2577 char *uw_sqlsuffixChar = "::char";
adamc@281 2578
adamc@311 2579 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280 2580 char *r, *s2;
adamc@280 2581
adamc@879 2582 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280 2583
adamc@666 2584 r = s2 = ctx->heap.front;
adamc@879 2585 if (uw_Estrings)
adamc@879 2586 *s2++ = 'E';
adamc@280 2587 *s2++ = '\'';
adamc@280 2588
adamc@280 2589 for (; *s; s++) {
adamc@280 2590 char c = *s;
adamc@280 2591
adamc@280 2592 switch (c) {
adamc@280 2593 case '\'':
adamc@885 2594 if (uw_Estrings)
adamc@885 2595 strcpy(s2, "\\'");
adamc@885 2596 else
adamc@885 2597 strcpy(s2, "''");
adamc@280 2598 s2 += 2;
adamc@280 2599 break;
adamc@280 2600 case '\\':
adamc@885 2601 if (uw_Estrings) {
adamc@885 2602 strcpy(s2, "\\\\");
adamc@885 2603 s2 += 2;
adamc@885 2604 } else
adamc@885 2605 *s2++ = '\\';
adamc@280 2606 break;
adamc@280 2607 default:
adamc@1150 2608 if (isprint((int)c))
adamc@280 2609 *s2++ = c;
adamc@879 2610 else if (uw_Estrings) {
adam@1857 2611 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280 2612 s2 += 4;
adamc@280 2613 }
adamc@879 2614 else
adam@1689 2615 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280 2616 }
adamc@280 2617 }
adamc@280 2618
adamc@879 2619 *s2++ = '\'';
adamc@879 2620 strcpy(s2, uw_sqlsuffixString);
adamc@879 2621 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280 2622 return r;
adamc@280 2623 }
adamc@281 2624
adamc@1011 2625 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011 2626 char *r, *s2;
adamc@1011 2627
adamc@1011 2628 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011 2629
adamc@1011 2630 r = s2 = ctx->heap.front;
adamc@1011 2631 if (uw_Estrings)
adamc@1011 2632 *s2++ = 'E';
adamc@1011 2633 *s2++ = '\'';
adamc@1011 2634
adamc@1011 2635 switch (c) {
adamc@1011 2636 case '\'':
adamc@1011 2637 if (uw_Estrings)
adamc@1011 2638 strcpy(s2, "\\'");
adamc@1011 2639 else
adamc@1011 2640 strcpy(s2, "''");
adamc@1011 2641 s2 += 2;
adamc@1011 2642 break;
adamc@1011 2643 case '\\':
adamc@1011 2644 if (uw_Estrings) {
adamc@1011 2645 strcpy(s2, "\\\\");
adamc@1011 2646 s2 += 2;
adamc@1011 2647 } else
adamc@1011 2648 *s2++ = '\\';
adamc@1011 2649 break;
adamc@1011 2650 default:
adamc@1150 2651 if (isprint((int)c))
adamc@1011 2652 *s2++ = c;
adamc@1011 2653 else if (uw_Estrings) {
adam@1857 2654 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011 2655 s2 += 4;
adamc@1011 2656 }
adamc@1011 2657 else
adamc@1011 2658 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011 2659 }
adamc@1011 2660
adamc@1011 2661 *s2++ = '\'';
adamc@1011 2662 strcpy(s2, uw_sqlsuffixChar);
adamc@1011 2663 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011 2664 return r;
adamc@1011 2665 }
adamc@1011 2666
adamc@879 2667 char *uw_sqlsuffixBlob = "::bytea";
adamc@879 2668
adam@1867 2669 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737 2670 char *r, *s2;
adamc@737 2671 size_t i;
adamc@737 2672
adam@1867 2673 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737 2674
adamc@737 2675 r = s2 = ctx->heap.front;
adamc@879 2676 if (uw_Estrings)
adamc@879 2677 *s2++ = 'E';
adam@1867 2678 else
adam@1867 2679 *s2++ = 'X';
adamc@737 2680 *s2++ = '\'';
adamc@737 2681
adamc@737 2682 for (i = 0; i < b.size; ++i) {
adam@1867 2683 unsigned char c = b.data[i];
adam@1867 2684
adam@1867 2685 if (uw_Estrings) {
adam@1867 2686 switch (c) {
adam@1867 2687 case '\'':
adamc@885 2688 strcpy(s2, "\\'");
adam@1867 2689 s2 += 2;
adam@1867 2690 break;
adam@1867 2691 case '\\':
adamc@885 2692 strcpy(s2, "\\\\\\\\");
adamc@885 2693 s2 += 4;
adam@1867 2694 break;
adam@1867 2695 default:
adam@1867 2696 if (isprint((int)c))
adam@1867 2697 *s2++ = c;
adam@1867 2698 else {
adam@1867 2699 sprintf(s2, "\\\\%03o", c);
adam@1867 2700 s2 += 5;
adam@1867 2701 }
adamc@737 2702 }
adam@1867 2703 } else {
adam@1867 2704 sprintf(s2, "%02X", c);
adam@1867 2705 s2 += 2;
adamc@737 2706 }
phurst@1981 2707 }
adamc@737 2708
adamc@879 2709 *s2++ = '\'';
adamc@879 2710 strcpy(s2, uw_sqlsuffixBlob);
adamc@879 2711 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737 2712 return r;
adamc@737 2713 }
adamc@737 2714
adamc@682 2715 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 2716 int len;
adamc@682 2717 char *r;
adamc@682 2718 unsigned long long combo = ((unsigned long long)chn.cli << 32) | chn.chn;
adamc@682 2719
adamc@682 2720 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682 2721 r = ctx->heap.front;
adamc@879 2722 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682 2723 ctx->heap.front += len+1;
adamc@682 2724 return r;
adamc@682 2725 }
adamc@682 2726
adamc@682 2727 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 2728 int len;
adamc@682 2729 char *r;
adamc@682 2730 unsigned long long combo = ((unsigned long long)chn.cli << 32) | chn.chn;
adamc@682 2731
adamc@682 2732 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 2733 r = ctx->heap.front;
adamc@682 2734 sprintf(r, "%lld%n", combo, &len);
adamc@682 2735 ctx->heap.front += len+1;
adamc@682 2736 return r;
adamc@682 2737 }
adamc@682 2738
adamc@879 2739 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879 2740
adamc@682 2741 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682 2742 int len;
adamc@682 2743 char *r;
adamc@682 2744
adamc@682 2745 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682 2746 r = ctx->heap.front;
adamc@879 2747 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682 2748 ctx->heap.front += len+1;
adamc@682 2749 return r;
adamc@682 2750 }
adamc@682 2751
adamc@682 2752 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682 2753 int len;
adamc@682 2754 char *r;
adamc@682 2755
adamc@682 2756 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 2757 r = ctx->heap.front;
adamc@682 2758 sprintf(r, "%u%n", cli, &len);
adamc@682 2759 ctx->heap.front += len+1;
adamc@682 2760 return r;
adamc@682 2761 }
adamc@682 2762
adamc@467 2763 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467 2764 if (s == NULL)
adamc@467 2765 return "NULL";
adamc@467 2766 else
adamc@467 2767 return uw_Basis_sqlifyString(ctx, s);
adamc@467 2768 }
adamc@467 2769
adamc@311 2770 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 2771 if (b == uw_Basis_False)
adamc@281 2772 return "FALSE";
adamc@281 2773 else
adamc@281 2774 return "TRUE";
adamc@281 2775 }
adamc@282 2776
adamc@467 2777 char *uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool *b) {
adamc@467 2778 if (b == NULL)
adamc@467 2779 return "NULL";
adamc@467 2780 else
adamc@467 2781 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467 2782 }
adamc@467 2783
adamc@439 2784 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439 2785 size_t len;
adamc@682 2786 char *r, *s;
adam@1392 2787 struct tm stm = {};
adam@1392 2788 stm.tm_isdst = -1;
adamc@682 2789
adam@1365 2790 if (localtime_r(&t.seconds, &stm)) {
adamc@682 2791 s = uw_malloc(ctx, TIMES_MAX);
adam@1364 2792 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834 2793 if (uw_sql_type_annotations) {
adam@1834 2794 if (t.microseconds) {
adam@1834 2795 r = uw_malloc(ctx, len + 21);
adam@1834 2796 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834 2797 } else {
adam@1834 2798 r = uw_malloc(ctx, len + 14);
adam@1834 2799 sprintf(r, "'%s'::timestamp", s);
adam@1834 2800 }
adam@1367 2801 } else {
adam@1834 2802 r = uw_malloc(ctx, len + 3);
adam@1834 2803 sprintf(r, "'%s'", s);
adam@1367 2804 }
adamc@682 2805 return r;
adamc@682 2806 } else
adamc@682 2807 return "<Invalid time>";
adamc@682 2808 }
adamc@682 2809
adamc@682 2810 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682 2811 size_t len;
adamc@439 2812 char *r;
adam@1392 2813 struct tm stm = {};
adam@1392 2814 stm.tm_isdst = -1;
adamc@439 2815
adam@1365 2816 if (localtime_r(&t.seconds, &stm)) {
adamc@439 2817 uw_check_heap(ctx, TIMES_MAX);
adamc@666 2818 r = ctx->heap.front;
adamc@439 2819 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 2820 ctx->heap.front += len+1;
adamc@439 2821 return r;
adamc@439 2822 } else
adamc@439 2823 return "<Invalid time>";
adamc@439 2824 }
adamc@439 2825
adam@1364 2826 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364 2827 size_t len;
adam@1364 2828 char *r;
adam@1392 2829 struct tm stm = {};
adam@1392 2830 stm.tm_isdst = -1;
adam@1364 2831
adam@1365 2832 if (localtime_r(&t.seconds, &stm)) {
adam@1364 2833 uw_check_heap(ctx, TIMES_MAX);
adam@1364 2834 r = ctx->heap.front;
adam@1365 2835 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365 2836 ctx->heap.front += len;
adam@1365 2837 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365 2838 ctx->heap.front += 8;
adam@1364 2839 return r;
adam@1364 2840 } else
adam@1364 2841 return "<Invalid time>";
adam@1364 2842 }
adam@1364 2843
adamc@467 2844 char *uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time *t) {
adamc@467 2845 if (t == NULL)
adamc@467 2846 return "NULL";
adamc@467 2847 else
adamc@467 2848 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467 2849 }
adamc@467 2850
adamc@311 2851 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311 2852 static uw_Basis_int true = 1;
adamc@311 2853 static uw_Basis_int false = 0;
adamc@282 2854
adamc@311 2855 if (b == uw_Basis_False)
adamc@282 2856 return (char *)&false;
adamc@282 2857 else
adamc@282 2858 return (char *)&true;
adamc@282 2859 }
adamc@284 2860
adamc@311 2861 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284 2862 int len;
adamc@284 2863 char *r;
adamc@284 2864
adamc@311 2865 uw_check_heap(ctx, INTS_MAX);
adamc@666 2866 r = ctx->heap.front;
adamc@284 2867 sprintf(r, "%lld%n", n, &len);
adamc@666 2868 ctx->heap.front += len+1;
adamc@284 2869 return r;
adamc@284 2870 }
adamc@285 2871
adamc@311 2872 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285 2873 int len;
adamc@285 2874 char *r;
adamc@285 2875
adamc@311 2876 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 2877 r = ctx->heap.front;
adamc@285 2878 sprintf(r, "%g%n", n, &len);
adamc@666 2879 ctx->heap.front += len+1;
adamc@285 2880 return r;
adamc@285 2881 }
adamc@285 2882
adamc@821 2883 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821 2884 char *r = uw_malloc(ctx, 2);
adamc@821 2885 r[0] = ch;
adamc@821 2886 r[1] = 0;
adamc@821 2887 return r;
adamc@821 2888 }
adamc@821 2889
adamc@311 2890 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311 2891 if (b == uw_Basis_False)
adamc@285 2892 return "False";
adamc@285 2893 else
adamc@285 2894 return "True";
adamc@285 2895 }
adamc@288 2896
adam@1359 2897 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352 2898 size_t len;
adam@1352 2899 char *r;
adam@1392 2900 struct tm stm = {};
adam@1392 2901 stm.tm_isdst = -1;
adam@1352 2902
adam@1365 2903 if (localtime_r(&t.seconds, &stm)) {
adam@1352 2904 uw_check_heap(ctx, TIMES_MAX);
adam@1352 2905 r = ctx->heap.front;
adam@1352 2906 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352 2907 ctx->heap.front += len+1;
adam@1352 2908 return r;
adam@1352 2909 } else
adam@1352 2910 return "<Invalid time>";
adam@1352 2911 }
adam@1352 2912
adam@1629 2913 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629 2914 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629 2915 }
adam@1629 2916
adamc@311 2917 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288 2918 char *endptr;
adamc@311 2919 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288 2920
adamc@288 2921 if (*s != '\0' && *endptr == '\0') {
adamc@311 2922 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288 2923 *r = n;
adamc@288 2924 return r;
adamc@288 2925 } else
adamc@288 2926 return NULL;
adamc@288 2927 }
adamc@289 2928
adamc@311 2929 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289 2930 char *endptr;
adamc@311 2931 uw_Basis_float n = strtod(s, &endptr);
adamc@289 2932
adamc@289 2933 if (*s != '\0' && *endptr == '\0') {
adamc@311 2934 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289 2935 *r = n;
adamc@289 2936 return r;
adamc@289 2937 } else
adamc@289 2938 return NULL;
adamc@289 2939 }
adamc@289 2940
adamc@821 2941 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821 2942 if (s[0] == 0) {
adamc@821 2943 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821 2944 r[0] = 0;
adamc@821 2945 return r;
adamc@821 2946 } else if (s[1] != 0)
adamc@821 2947 return NULL;
adamc@821 2948 else {
adamc@821 2949 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821 2950 r[0] = s[0];
adamc@821 2951 return r;
adamc@821 2952 }
adamc@821 2953 }
adamc@821 2954
adamc@311 2955 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311 2956 static uw_Basis_bool true = uw_Basis_True;
adamc@311 2957 static uw_Basis_bool false = uw_Basis_False;
adamc@289 2958
adamc@289 2959 if (!strcasecmp (s, "True"))
adamc@289 2960 return &true;
adamc@289 2961 else if (!strcasecmp (s, "False"))
adamc@289 2962 return &false;
adamc@289 2963 else
adamc@289 2964 return NULL;
adamc@289 2965 }
adamc@292 2966
adamc@436 2967 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438 2968 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adam@1374 2969 struct tm stm = {};
adam@1392 2970 stm.tm_isdst = -1;
adamc@436 2971
adamc@439 2972 if (dot) {
adamc@439 2973 *dot = 0;
adamc@439 2974 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439 2975 *dot = '.';
adamc@439 2976 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365 2977 r->seconds = mktime(&stm);
adam@1365 2978 r->microseconds = 0;
adamc@439 2979 return r;
adamc@439 2980 }
adamc@439 2981 else {
adamc@439 2982 *dot = '.';
adamc@439 2983 return NULL;
adamc@439 2984 }
adamc@436 2985 }
adamc@439 2986 else {
adam@2072 2987 if (strptime(s, ctx->app->time_format, &stm) == end) {
adamc@439 2988 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365 2989 r->seconds = mktime(&stm);
adam@1365 2990 r->microseconds = 0;
adamc@439 2991 return r;
adam@2072 2992 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@2072 2993 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@2072 2994 r->seconds = mktime(&stm);
adam@2072 2995 r->microseconds = 0;
adam@2072 2996 return r;
adam@2072 2997 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439 2998 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365 2999 r->seconds = mktime(&stm);
adam@1365 3000 r->microseconds = 0;
adamc@439 3001 return r;
adam@1632 3002 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632 3003 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632 3004 r->seconds = mktime(&stm);
adam@1632 3005 r->microseconds = 0;
adam@1632 3006 return r;
adamc@439 3007 }
adamc@439 3008 else
adamc@439 3009 return NULL;
adamc@439 3010 }
adamc@436 3011 }
adamc@436 3012
adam@1352 3013 uw_Basis_time *uw_Basis_stringToTimef(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352 3014 char *end = strchr(s, 0);
adam@1374 3015 struct tm stm = {};
adam@1392 3016 stm.tm_isdst = -1;
adam@1352 3017
adam@1352 3018 if (strptime(s, fmt, &stm) == end) {
adam@1352 3019 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365 3020 r->seconds = mktime(&stm);
adam@1365 3021 r->microseconds = 0;
adam@1352 3022 return r;
adam@1352 3023 }
adam@1352 3024 else
adam@1352 3025 return NULL;
adam@1352 3026 }
adam@1352 3027
adamc@311 3028 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292 3029 char *endptr;
adamc@311 3030 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292 3031
adamc@292 3032 if (*s != '\0' && *endptr == '\0')
adamc@292 3033 return n;
adamc@292 3034 else
adam@1444 3035 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292 3036 }
adamc@293 3037
adamc@682 3038 #include <errno.h>
adamc@682 3039
adamc@678 3040 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682 3041 unsigned long long n;
adamc@682 3042
adamc@682 3043 if (sscanf(s, "%llu", &n) < 1)
adam@1444 3044 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682 3045 else {
adamc@682 3046 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682 3047 return ch;
adamc@682 3048 }
adamc@682 3049 }
adamc@682 3050
adamc@682 3051 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678 3052 char *endptr;
adamc@682 3053 unsigned long n = strtoul(s, &endptr, 10);
adamc@678 3054
adamc@678 3055 if (*s != '\0' && *endptr == '\0')
adamc@678 3056 return n;
adamc@678 3057 else
adam@1444 3058 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678 3059 }
adamc@678 3060
adamc@311 3061 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293 3062 char *endptr;
adamc@311 3063 uw_Basis_float n = strtod(s, &endptr);
adamc@293 3064
adamc@293 3065 if (*s != '\0' && *endptr == '\0')
adamc@293 3066 return n;
adamc@293 3067 else
adam@1444 3068 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293 3069 }
adamc@293 3070
adamc@821 3071 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821 3072 if (s[0] == 0)
adamc@821 3073 return 0;
adamc@821 3074 else if (s[1] != 0)
adam@1444 3075 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821 3076 else
adamc@821 3077 return s[0];
adamc@821 3078 }
adamc@821 3079
adamc@311 3080 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296 3081 if (!strcasecmp(s, "T") || !strcasecmp (s, "True"))
adamc@311 3082 return uw_Basis_True;
adamc@296 3083 else if (!strcasecmp(s, "F") || !strcasecmp (s, "False"))
adamc@311 3084 return uw_Basis_False;
adamc@293 3085 else
adam@1444 3086 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293 3087 }
adamc@436 3088
adam@1352 3089 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352 3090 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adam@1352 3091 struct tm stm = {};
adam@1392 3092 stm.tm_isdst = -1;
adam@1352 3093
adam@1352 3094 if (dot) {
adam@1352 3095 *dot = 0;
adam@1352 3096 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352 3097 *dot = '.';
adam@1410 3098 char usec[] = "000000";
adam@1410 3099 int len = strlen(dot+1);
adam@1410 3100 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410 3101 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365 3102 return r;
adam@1352 3103 }
adam@1352 3104 else {
adam@1352 3105 *dot = '.';
adam@1444 3106 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352 3107 }
adam@1352 3108 }
adam@1352 3109 else {
adam@1352 3110 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365 3111 uw_Basis_time r = { mktime(&stm) };
adam@1365 3112 return r;
adam@1352 3113 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365 3114 uw_Basis_time r = { mktime(&stm) };
adam@1365 3115 return r;
adam@1352 3116 } else
adam@1444 3117 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352 3118 }
adam@1352 3119 }
adam@1352 3120
adamc@436 3121 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438 3122 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adamc@436 3123 struct tm stm = {};
adam@1392 3124 stm.tm_isdst = -1;
adamc@436 3125
adamc@438 3126 if (dot) {
adamc@438 3127 *dot = 0;
adamc@438 3128 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438 3129 *dot = '.';
adam@1365 3130 {
adam@1365 3131 uw_Basis_time r = { mktime(&stm) };
adam@1365 3132 return r;
adam@1365 3133 }
adamc@438 3134 }
adamc@438 3135 else {
adamc@438 3136 *dot = '.';
adam@1444 3137 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438 3138 }
adamc@438 3139 }
adamc@438 3140 else {
adam@2072 3141 if (strptime(s, ctx->app->time_format, &stm) == end) {
adam@2072 3142 uw_Basis_time r = { mktime(&stm) };
adam@2072 3143 return r;
adam@2072 3144 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365 3145 uw_Basis_time r = { mktime(&stm) };
adam@1365 3146 return r;
adam@1365 3147 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365 3148 uw_Basis_time r = { mktime(&stm) };
adam@1365 3149 return r;
adam@1632 3150 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632 3151 uw_Basis_time r = { mktime(&stm) };
adam@1632 3152 return r;
adam@1365 3153 } else
adam@1444 3154 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438 3155 }
adamc@436 3156 }
adamc@457 3157
adam@1352 3158 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352 3159 char *end = strchr(s, 0);
adamc@939 3160 struct tm stm = {};
adam@1392 3161 stm.tm_isdst = -1;
adamc@939 3162
adam@1365 3163 if (strptime(s, fmt, &stm) == end) {
adam@1365 3164 uw_Basis_time r = { mktime(&stm) };
adam@1365 3165 return r;
adam@1365 3166 } else
adam@1444 3167 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939 3168 }
adamc@939 3169
adamc@742 3170 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742 3171 char *r = ctx->heap.front;
adamc@742 3172 uw_Basis_blob b = {len, r};
adamc@742 3173
adamc@742 3174 uw_check_heap(ctx, len);
adamc@742 3175
adam@1992 3176 if (s[0] == '\\' && s[1] == 'x') {
adam@1992 3177 s += 2;
adam@1992 3178
adam@1992 3179 while (*s) {
adam@1992 3180 int n;
adam@1992 3181 sscanf(s, "%02x", &n);
adam@1992 3182 *r++ = n;
adam@1992 3183 s += 2;
adam@1992 3184 }
adam@1992 3185 } else {
adam@1992 3186 while (*s) {
adam@1992 3187 if (s[0] == '\\') {
adam@1992 3188 if (s[1] == '\\') {
adam@1992 3189 *r++ = '\\';
adam@1992 3190 s += 2;
adam@1992 3191 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adam@1992 3192 *r++ = (s[1] - '0') * 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adam@1992 3193 s += 4;
adam@1992 3194 }
adam@1992 3195 else {
adam@1992 3196 *r++ = '\\';
adam@1992 3197 ++s;
adam@1992 3198 }
adam@1992 3199 } else {
adam@1992 3200 *r++ = s[0];
adamc@742 3201 ++s;
adamc@742 3202 }
adamc@742 3203 }
adamc@742 3204 }
adamc@742 3205
adamc@742 3206 b.size = r - ctx->heap.front;
adamc@742 3207 ctx->heap.front = r;
adam@1992 3208
adamc@742 3209 return b;
adamc@742 3210 }
adamc@742 3211
adam@1402 3212 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052 3213
adamc@463 3214 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463 3215 int len = strlen(c);
adamc@854 3216 char *p = ctx->outHeaders.start;
adamc@474 3217
adamc@1134 3218 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474 3219 char *p2;
adamc@474 3220 p += 13;
adamc@474 3221 p2 = strchr(p, '=');
adamc@474 3222
adamc@474 3223 if (p2) {
adamc@474 3224 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474 3225
adamc@474 3226 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052 3227 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052 3228 return NULL;
adamc@1052 3229 else {
adamc@1052 3230 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052 3231 memcpy(ret, p2+1, sz);
adamc@1052 3232 ret[sz] = 0;
adamc@1052 3233 return ret;
adamc@1052 3234 }
adamc@474 3235 }
adamc@474 3236 }
adamc@474 3237 }
adamc@463 3238
adamc@1134 3239 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051 3240 char *p2;
adamc@1051 3241
adamc@854 3242 while (1) {
adamc@1051 3243 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134 3244 if ((p2 = strchr(p, ';'))) {
adamc@1051 3245 size_t n = p2 - (p + len);
adamc@1051 3246 char *r = uw_malloc(ctx, n);
adamc@1051 3247 memcpy(r, p + 1 + len, n-1);
adamc@1051 3248 r[n-1] = 0;
adamc@1051 3249 return r;
adamc@1051 3250 } else
adamc@1051 3251 return p + 1 + len;
adamc@1134 3252 } else if ((p = strchr(p, ';')))
adamc@854 3253 p += 2;
adamc@463 3254 else
adamc@463 3255 return NULL;
adamc@463 3256 }
adamc@463 3257 }
adamc@792 3258
adamc@792 3259 return NULL;
adamc@457 3260 }
adamc@462 3261
adam@1877 3262 static void set_cookie(uw_context ctx) {
adam@1877 3263 if (ctx->usedSig)
adam@1877 3264 ctx->needsResig = 1;
adam@1877 3265 }
adam@1877 3266
adamc@1050 3267 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 3268 uw_write_header(ctx, "Set-Cookie: ");
adamc@462 3269 uw_write_header(ctx, c);
adamc@462 3270 uw_write_header(ctx, "=");
adamc@462 3271 uw_write_header(ctx, v);
adamc@466 3272 uw_write_header(ctx, "; path=");
adamc@466 3273 uw_write_header(ctx, prefix);
adamc@1050 3274 if (expires) {
adamc@1050 3275 char formatted[30];
adam@1392 3276 struct tm tm = {};
adam@1392 3277 tm.tm_isdst = -1;
adamc@1050 3278
adam@1365 3279 gmtime_r(&expires->seconds, &tm);
adamc@1050 3280
adamc@1050 3281 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050 3282
adamc@1050 3283 uw_write_header(ctx, "; expires=");
adamc@1050 3284 uw_write_header(ctx, formatted);
adamc@1050 3285 }
adamc@1050 3286 if (secure)
adamc@1050 3287 uw_write_header(ctx, "; secure");
adamc@462 3288 uw_write_header(ctx, "\r\n");
adam@1877 3289 set_cookie(ctx);
adamc@462 3290
adamc@462 3291 return uw_unit_v;
adamc@462 3292 }
adamc@667 3293
adamc@1050 3294 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050 3295 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050 3296 uw_write_header(ctx, c);
adamc@1050 3297 uw_write_header(ctx, "=; path=");
adamc@1050 3298 uw_write_header(ctx, prefix);
adamc@1052 3299 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877 3300 set_cookie(ctx);
adamc@1050 3301
adamc@1050 3302 return uw_unit_v;
adamc@1050 3303 }
adamc@1050 3304
adamc@1113 3305 size_t uw_deltas_max = SIZE_MAX;
adamc@1113 3306
adamc@682 3307 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682 3308 unsigned i;
adamc@682 3309 delta *d;
adamc@671 3310
adamc@682 3311 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682 3312 if (ctx->deltas[i].client == client)
adamc@682 3313 return &ctx->deltas[i];
adamc@671 3314
adamc@682 3315 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113 3316 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113 3317 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113 3318
adamc@682 3319 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369 3320 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682 3321 }
adamc@671 3322
adamc@682 3323 d = &ctx->deltas[ctx->used_deltas++];
adamc@682 3324 d->client = client;
adam@1369 3325 uw_buffer_reset(&d->msgs);
adamc@682 3326 return d;
adamc@671 3327 }
adamc@671 3328
adamc@668 3329 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682 3330 if (ctx->client == NULL)
adamc@682 3331 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671 3332
adamc@682 3333 return new_channel(ctx->client);
adamc@668 3334 }
adamc@668 3335
adamc@668 3336 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682 3337 delta *d = allocate_delta(ctx, chn.cli);
adamc@682 3338 size_t len;
adamc@682 3339 int preLen;
adamc@682 3340 char pre[INTS_MAX + 2];
adamc@668 3341
adamc@682 3342 len = strlen(msg);
adamc@682 3343
adamc@682 3344 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682 3345
adam@1369 3346 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369 3347 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369 3348 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671 3349
adamc@671 3350 return uw_unit_v;
adamc@668 3351 }
adamc@671 3352
adam@1327 3353 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131 3354 int i;
adamc@1131 3355 cleanup *cl;
adamc@1131 3356
adamc@1131 3357 if (ctx->client)
adamc@1131 3358 release_client(ctx->client);
adamc@1131 3359
adamc@1131 3360 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131 3361 cl->func(cl->arg);
adamc@1131 3362
adamc@1131 3363 ctx->cleanup_front = ctx->cleanup;
adamc@1131 3364
adamc@1131 3365 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131 3366 if (ctx->transactionals[i].rollback != NULL)
adamc@1131 3367 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131 3368
adamc@1131 3369 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131 3370 if (ctx->transactionals[i].free)
adam@1327 3371 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131 3372
adam@1941 3373 if (ctx->app && ctx->transaction_started) {
adam@1941 3374 ctx->transaction_started = 0;
adam@1941 3375 return ctx->app->db_rollback(ctx);
adam@1941 3376 } else
adam@1941 3377 return 0;
adamc@1131 3378 }
adamc@1131 3379
adam@1956 3380 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 3381 const char uw_begin_html5[] = "<!DOCTYPE html><html>";
adam@1728 3382
adam@1877 3383 extern int uw_hash_blocksize;
adam@1877 3384
adam@1877 3385 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877 3386
adam@1877 3387 static char *find_sig(char *haystack) {
adam@1877 3388 int i;
adam@1877 3389 char *s = strstr(haystack, sig_intro);
adam@1877 3390
adam@1877 3391 if (!s || strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877 3392 return NULL;
phurst@1981 3393
adam@1877 3394 s += sizeof sig_intro - 1;
adam@1877 3395
adam@1877 3396 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877 3397 if (!isxdigit((int)s[i]))
adam@1877 3398 return NULL;
adam@1877 3399
adam@1877 3400 if (s[i] != '"')
adam@1877 3401 return NULL;
adam@1877 3402
adam@1877 3403 return s;
adam@1877 3404 }
adam@1877 3405
adam@2033 3406 static pthread_mutex_t message_send_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2033 3407
adam@1938 3408 int uw_commit(uw_context ctx) {
adamc@1104 3409 int i;
adam@1877 3410 char *sig;
adamc@1104 3411
adamc@1131 3412 if (uw_has_error(ctx)) {
adam@1327 3413 uw_rollback(ctx, 0);
adam@1938 3414 return 0;
adamc@1131 3415 }
adamc@1131 3416
adamc@1104 3417 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771 3418 if (ctx->transactionals[i].rollback != NULL)
adamc@1131 3419 if (ctx->transactionals[i].commit) {
adamc@1083 3420 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131 3421 if (uw_has_error(ctx)) {
adam@1327 3422 uw_rollback(ctx, 0);
adam@1938 3423 return 0;
adamc@1131 3424 }
adamc@1131 3425 }
adamc@771 3426
adam@2033 3427 // Here's an important lock to provide the abstraction that all messages from one transaction are sent as an atomic unit.
adam@2033 3428 if (ctx->used_deltas > 0)
adam@2033 3429 pthread_mutex_lock(&message_send_mutex);
adam@2033 3430
adam@2000 3431 if (ctx->transaction_started) {
adam@2000 3432 int code = ctx->app->db_commit(ctx);
adam@2000 3433
adam@2000 3434 if (code) {
adam@2033 3435 if (ctx->used_deltas > 0)
adam@2033 3436 pthread_mutex_unlock(&message_send_mutex);
adam@2033 3437
adam@2000 3438 if (ctx->client)
adam@2000 3439 release_client(ctx->client);
adam@2000 3440
adam@2000 3441 if (code == -1) {
adam@2000 3442 // This case is for a serialization failure, which is not really an "error."
adam@2000 3443 // The transaction will restart, so we should rollback any transactionals
adam@2000 3444 // that triggered above.
adam@2000 3445
adam@2000 3446 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000 3447 if (ctx->transactionals[i].rollback != NULL)
adam@2000 3448 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2000 3449
adam@2000 3450 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000 3451 if (ctx->transactionals[i].free)
adam@2000 3452 ctx->transactionals[i].free(ctx->transactionals[i].data, 1);
adam@2000 3453
grrwlf@2030 3454 return 1;
adam@2000 3455 }
adam@2000 3456
adam@2000 3457 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000 3458 if (ctx->transactionals[i].free)
adam@2000 3459 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000 3460
adam@2000 3461 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@2000 3462 return 0;
adam@2000 3463 }
adam@2000 3464 }
adam@2000 3465
adamc@1104 3466 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771 3467 if (ctx->transactionals[i].rollback == NULL)
adamc@1131 3468 if (ctx->transactionals[i].commit) {
adamc@1083 3469 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131 3470 if (uw_has_error(ctx)) {
adam@2033 3471 if (ctx->used_deltas > 0)
adam@2033 3472 pthread_mutex_unlock(&message_send_mutex);
adam@2033 3473
adam@2033 3474 if (ctx->client)
adam@2033 3475 release_client(ctx->client);
adam@2033 3476
adam@2033 3477 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033 3478 if (ctx->transactionals[i].rollback != NULL)
adam@2033 3479 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2033 3480
adam@2033 3481 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033 3482 if (ctx->transactionals[i].free)
adam@2033 3483 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000 3484
adam@1938 3485 return 0;
adamc@1131 3486 }
adamc@1131 3487 }
adamc@1131 3488
adamc@682 3489 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682 3490 delta *d = &ctx->deltas[i];
adamc@682 3491 client *c = find_client(d->client);
adamc@682 3492
adam@1551 3493 assert (c != NULL);
adam@1551 3494 assert(c->mode == USED);
adamc@682 3495
adam@1447 3496 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682 3497 }
adamc@682 3498
adam@2033 3499 if (ctx->used_deltas > 0)
adam@2033 3500 pthread_mutex_unlock(&message_send_mutex);
adam@2033 3501
adamc@682 3502 if (ctx->client)
adamc@685 3503 release_client(ctx->client);
adamc@771 3504
adamc@1104 3505 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083 3506 if (ctx->transactionals[i].free)
adam@1327 3507 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916 3508
vshabanoff@1726 3509 uw_check(ctx, 1);
vshabanoff@1726 3510 *ctx->page.front = 0;
adam@1413 3511
adam@1956 3512 if (!ctx->returning_indirectly
adam@1956 3513 && (ctx->app->is_html5
adam@1956 3514 ? !strncmp(ctx->page.start, uw_begin_html5, sizeof uw_begin_html5 - 1)
adam@1956 3515 : !strncmp(ctx->page.start, uw_begin_xhtml, sizeof uw_begin_xhtml - 1))) {
adam@1728 3516 char *s;
adam@1728 3517
adam@1728 3518 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1956 3519 s = ctx->page.start + (ctx->app->is_html5 ? sizeof uw_begin_html5 - 1 : sizeof uw_begin_xhtml - 1);
adam@1728 3520 s = strchr(s, '<');
adam@1728 3521 if (s == NULL) {
adam@1728 3522 // Weird. Document has no tags!
adam@1728 3523
adam@1728 3524 uw_write(ctx, "<head></head><body></body>");
adam@1728 3525 uw_check(ctx, 1);
adam@1728 3526 *ctx->page.front = 0;
adam@1728 3527 } else if (!strncmp(s, "<head>", 6)) {
adam@1728 3528 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728 3529
adam@1729 3530 // Any freeform JavaScript to include?
adam@1729 3531 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729 3532 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729 3533 size_t lenP = lenH + 40 + len;
adam@1729 3534 char *start = s + 6, *oldPage = ctx->page.start;
adam@1729 3535
adam@1729 3536 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729 3537 start += ctx->page.start - oldPage;
adam@1729 3538 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729 3539 ctx->page.front += lenP;
adam@1729 3540 memcpy(start, ctx->script_header, lenH);
adam@1729 3541 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729 3542 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729 3543 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729 3544 } else {
adam@1729 3545 size_t lenH = strlen(ctx->script_header);
adam@1729 3546 char *start = s + 6, *oldPage = ctx->page.start;
adam@1729 3547
adam@1729 3548 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729 3549 start += ctx->page.start - oldPage;
adam@1729 3550 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729 3551 ctx->page.front += lenH;
adam@1729 3552 memcpy(start, ctx->script_header, lenH);
adam@1729 3553 }
adam@1728 3554 } else {
adam@1728 3555 // No <head>. At this point, add it, with <script> tags inside.
adam@1728 3556
adam@1729 3557 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729 3558 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729 3559 size_t lenP = lenH + 53 + len;
adam@1729 3560 char *start = s, *oldPage = ctx->page.start;
adam@1729 3561
adam@1729 3562 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729 3563 start += ctx->page.start - oldPage;
adam@1729 3564 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729 3565 ctx->page.front += lenP;
adam@1729 3566 memcpy(start, "<head>", 6);
adam@1729 3567 memcpy(start + 6, ctx->script_header, lenH);
adam@1729 3568 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729 3569 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729 3570 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729 3571 } else {
adam@1729 3572 size_t lenH = strlen(ctx->script_header);
adam@1729 3573 size_t lenP = lenH + 13;
adam@1729 3574 char *start = s, *oldPage = ctx->page.start;
adam@1729 3575
adam@1729 3576 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729 3577 start += ctx->page.start - oldPage;
adam@1729 3578 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729 3579 ctx->page.front += lenP;
adam@1729 3580 memcpy(start, "<head>", 6);
adam@1729 3581 memcpy(start + 6, ctx->script_header, lenH);
adam@1729 3582 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729 3583 }
adamc@916 3584 }
adamc@916 3585 }
adam@1877 3586
adam@1877 3587 if (ctx->needsResig) {
adam@1877 3588 sig = find_sig(ctx->page.start);
adam@1877 3589 if (sig) {
adam@1877 3590 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877 3591
adam@1877 3592 do {
adam@1877 3593 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877 3594 sig = find_sig(sig);
adam@1877 3595 } while (sig);
adam@1877 3596 }
adam@1877 3597 }
adam@1938 3598
adam@1938 3599 return 0;
adamc@671 3600 }
adamc@671 3601
adamc@683 3602
adamc@1113 3603 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113 3604
adam@2001 3605 int uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327 3606 uw_callback_with_retry free) {
adamc@771 3607 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113 3608 if (ctx->used_transactionals+1 > uw_transactionals_max)
adam@2001 3609 // Exceeded limit on number of transactionals.
adam@2001 3610 return -1;
adamc@1084 3611 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771 3612 ++ctx->n_transactionals;
adamc@771 3613 }
adamc@771 3614
adamc@771 3615 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771 3616 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771 3617 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771 3618 ctx->transactionals[ctx->used_transactionals++].free = free;
adam@2001 3619
adam@2001 3620 return 0;
adamc@771 3621 }
adamc@771 3622
adamc@683 3623
adamc@683 3624 // "Garbage collection"
adamc@683 3625
adamc@1121 3626 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121 3627 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121 3628
adamc@1121 3629 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683 3630 int r = setjmp(ctx->jmp_buf);
adamc@683 3631
adamc@1121 3632 if (r == 0)
adamc@1121 3633 uw_do_expunge(ctx, cli, data);
adamc@1121 3634 else
adamc@1121 3635 ctx->app->db_rollback(ctx);
adamc@1121 3636
adamc@1121 3637 uw_post_expunge(ctx, data);
adamc@683 3638
adamc@683 3639 return r;
adamc@683 3640 }
adamc@683 3641
adamc@683 3642 void uw_prune_clients(uw_context ctx) {
adamc@683 3643 client *c, *next, *prev = NULL;
adamc@683 3644 time_t cutoff;
adamc@683 3645
adamc@1094 3646 cutoff = time(NULL) - ctx->app->timeout;
adamc@683 3647
adamc@683 3648 pthread_mutex_lock(&clients_mutex);
adam@1707 3649 pruning_thread = pthread_self();
adam@1707 3650 pruning_thread_initialized = 1;
adamc@683 3651
adamc@683 3652 for (c = clients_used; c; c = next) {
adamc@683 3653 next = c->next;
adamc@683 3654 pthread_mutex_lock(&c->lock);
adamc@685 3655 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683 3656 failure_kind fk = UNLIMITED_RETRY;
adamc@683 3657 if (prev)
adamc@683 3658 prev->next = next;
adamc@683 3659 else
adamc@683 3660 clients_used = next;
adamc@683 3661 while (fk == UNLIMITED_RETRY) {
adam@1941 3662 uw_reset(ctx);
adamc@1121 3663 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121 3664 if (fk == UNLIMITED_RETRY)
adamc@684 3665 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683 3666 }
adamc@684 3667 if (fk == SUCCESS)
adamc@684 3668 free_client(c);
adamc@1121 3669 else
adamc@856 3670 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683 3671 }
adamc@683 3672 else
adamc@683 3673 prev = c;
adamc@683 3674 pthread_mutex_unlock(&c->lock);
adamc@683 3675 }
adamc@683 3676
adamc@683 3677 pthread_mutex_unlock(&clients_mutex);
adamc@683 3678 }
adamc@687 3679
adamc@687 3680 failure_kind uw_initialize(uw_context ctx) {
adamc@687 3681 int r = setjmp(ctx->jmp_buf);
adamc@687 3682
adamc@687 3683 if (r == 0) {
adam@1936 3684 uw_ensure_transaction(ctx);
adamc@1094 3685 ctx->app->initializer(ctx);
adam@2296 3686 if (uw_commit(ctx))
adamc@687 3687 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687 3688 }
adamc@687 3689
adamc@687 3690 return r;
adamc@687 3691 }
adamc@717 3692
adamc@1065 3693 static int url_bad(uw_Basis_string s) {
adamc@1065 3694 for (; *s; ++s)
adamc@1153 3695 if (!isgraph((int)*s))
adamc@1065 3696 return 1;
adamc@1065 3697
adamc@1065 3698 return 0;
adamc@1065 3699 }
adamc@1065 3700
adamc@717 3701 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065 3702 if (url_bad(s))
adamc@1065 3703 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094 3704 if (ctx->app->check_url(s))
adamc@770 3705 return s;
adamc@770 3706 else
adamc@770 3707 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717 3708 }
adamc@734 3709
adamc@770 3710 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065 3711 if (url_bad(s))
adamc@1065 3712 return NULL;
adamc@1094 3713 if (ctx->app->check_url(s))
adamc@770 3714 return s;
adamc@770 3715 else
adamc@770 3716 return NULL;
adamc@770 3717 }
adamc@770 3718
adam@1465 3719 static int mime_format(const char *s) {
adamc@770 3720 for (; *s; ++s)
grrwlf@2024 3721 if (!isalnum((int)*s) && *s != '/' && *s != '-' && *s != '.' && *s != '+')
adamc@770 3722 return 0;
adamc@770 3723
adamc@770 3724 return 1;
adamc@770 3725 }
adamc@770 3726
adamc@741 3727 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770 3728 if (!mime_format(s))
adamc@770 3729 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770 3730
adamc@1094 3731 if (ctx->app->check_mime(s))
adamc@770 3732 return s;
adamc@770 3733 else
adamc@770 3734 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770 3735 }
adamc@770 3736
adamc@770 3737 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770 3738 if (!mime_format(s))
adamc@770 3739 return NULL;
adamc@770 3740
adamc@1094 3741 if (ctx->app->check_mime(s))
adamc@770 3742 return s;
adamc@770 3743 else
adamc@770 3744 return NULL;
adamc@741 3745 }
adamc@741 3746
adam@1465 3747 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465 3748 if (!mime_format(s))
adam@1465 3749 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465 3750
adam@1465 3751 if (ctx->app->check_requestHeader(s))
adam@1465 3752 return s;
adam@1465 3753 else
adam@1465 3754 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465 3755 }
adam@1465 3756
adam@1465 3757 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465 3758 if (!mime_format(s))
adam@1465 3759 return NULL;
adam@1465 3760
adam@1465 3761 if (ctx->app->check_requestHeader(s))
adam@1465 3762 return s;
adam@1465 3763 else
adam@1465 3764 return NULL;
adam@1465 3765 }
adam@1465 3766
adam@1465 3767 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465 3768 if (!mime_format(s))
adam@1465 3769 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465 3770
adam@1465 3771 if (ctx->app->check_responseHeader(s))
adam@1465 3772 return s;
adam@1465 3773 else
adam@1465 3774 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465 3775 }
adam@1465 3776
adam@1799 3777 static int envVar_format(const char *s) {
adam@1799 3778 for (; *s; ++s)
adam@1799 3779 if (!isalnum((int)*s) && *s != '_' && *s != '.')
adam@1799 3780 return 0;
adam@1799 3781
adam@1799 3782 return 1;
adam@1799 3783 }
adam@1799 3784
adam@1465 3785 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799 3786 if (!envVar_format(s))
adam@1465 3787 return NULL;
adam@1465 3788
adam@1465 3789 if (ctx->app->check_responseHeader(s))
adam@1465 3790 return s;
adam@1465 3791 else
adam@1465 3792 return NULL;
adam@1465 3793 }
adam@1465 3794
adam@1799 3795 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799 3796 if (!envVar_format(s))
adam@1799 3797 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799 3798
adam@1799 3799 if (ctx->app->check_envVar(s))
adam@1799 3800 return s;
adam@1799 3801 else
adam@1799 3802 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799 3803 }
adam@1799 3804
adam@1799 3805 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799 3806 if (!mime_format(s))
adam@1799 3807 return NULL;
adam@1799 3808
adam@1799 3809 if (ctx->app->check_envVar(s))
adam@1799 3810 return s;
adam@1799 3811 else
adam@1799 3812 return NULL;
adam@1799 3813 }
adam@1799 3814
adam@1465 3815 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465 3816 return uw_Basis_requestHeader(ctx, name);
adam@1465 3817 }
adam@1465 3818
adam@1465 3819 static int mime_value_format(const char *s) {
adam@1465 3820 for (; *s; ++s)
adam@1465 3821 if (*s == '\r' || *s == '\n')
adam@1465 3822 return 0;
adam@1465 3823
adam@1465 3824 return 1;
adam@1465 3825 }
adam@1465 3826
adam@1465 3827 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465 3828 if (!mime_value_format(value))
adam@1465 3829 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465 3830
adam@1465 3831 uw_write_header(ctx, name);
adam@1465 3832 uw_write_header(ctx, ": ");
adam@1465 3833 uw_write_header(ctx, value);
adam@1465 3834 uw_write_header(ctx, "\r\n");
adam@1465 3835
adam@1465 3836 return uw_unit_v;
adam@1465 3837 }
adam@1465 3838
adam@1799 3839 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1993 3840 if (ctx->get_env)
adam@1993 3841 return ctx->get_env(ctx->get_env_data, name);
adam@1993 3842 else
adam@1994 3843 return getenv(name);
adam@1799 3844 }
adam@1799 3845
adamc@734 3846 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734 3847 return s ? s : "";
adamc@734 3848 }
adamc@734 3849
adamc@734 3850 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734 3851 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734 3852 int i;
phurst@1981 3853
adamc@734 3854 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734 3855 sprintf(&r[2*i], "%.02X", ((unsigned char *)sig)[i]);
adamc@734 3856
adamc@734 3857 return r;
adamc@734 3858 }
adamc@734 3859
adam@1512 3860 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512 3861 * optimizations that would enable timing attacks. See:
adam@1512 3862 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512 3863 */
adam@1512 3864 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512 3865 int i, x = 0, len1 = strlen(s1);
adam@1512 3866
adam@1512 3867 if (len1 != strlen(s2)) return 0;
adam@1512 3868
adam@1512 3869 for (i = 0; i < len1; ++i) {
adam@1512 3870 __asm__ __volatile__ ("");
adam@1512 3871 x |= s1[i] ^ s2[i];
adam@1512 3872 }
adam@1512 3873
adam@1512 3874 return x == 0;
adam@1512 3875 }
adam@1512 3876
adamc@734 3877 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877 3878 ctx->usedSig = 1;
adamc@1094 3879 return ctx->app->cookie_sig(ctx);
adamc@734 3880 }
adamc@737 3881
adamc@737 3882 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737 3883 return f.name;
adamc@737 3884 }
adamc@737 3885
adamc@740 3886 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740 3887 return f.type;
adamc@740 3888 }
adamc@740 3889
adamc@745 3890 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745 3891 return b.size;
adamc@745 3892 }
adamc@745 3893
adamc@1119 3894 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119 3895 uw_Basis_blob b = {strlen(s), s};
adamc@1119 3896
adamc@1119 3897 return b;
adamc@1119 3898 }
adamc@1119 3899
adamc@737 3900 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737 3901 return f.data;
adamc@737 3902 }
adamc@741 3903
adam@1347 3904 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347 3905 return pb.type;
adam@1347 3906 }
adam@1347 3907
adam@1347 3908 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347 3909 return pb.data;
adam@1347 3910 }
adam@1347 3911
adam@1471 3912 static char *old_headers(uw_context ctx) {
adam@1471 3913 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471 3914 return NULL;
adam@1471 3915 else {
adam@1471 3916 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471 3917
adam@1471 3918 if (s == NULL || strncasecmp(s+1, "Content-type: ", 14))
adam@1471 3919 return NULL;
adam@1471 3920 else {
adam@1471 3921 s = strchr(s+15, '\n');
adam@1471 3922 if (s == NULL)
adam@1471 3923 return NULL;
adam@1471 3924 else
adam@1471 3925 return uw_strdup(ctx, s+1);
adam@1471 3926 }
adam@1471 3927 }
adam@1471 3928 }
adam@1471 3929
adamc@741 3930 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741 3931 cleanup *cl;
adamc@741 3932 int len;
adam@1471 3933 char *oldh;
adamc@741 3934
adam@1451 3935 if (!ctx->allowed_to_return_indirectly)
adam@1451 3936 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451 3937
adamc@1065 3938 ctx->returning_indirectly = 1;
adam@1471 3939 oldh = old_headers(ctx);
adam@1369 3940 uw_buffer_reset(&ctx->outHeaders);
adam@1369 3941 uw_buffer_reset(&ctx->page);
adamc@741 3942
adamc@856 3943 uw_write_header(ctx, on_success);
adamc@856 3944 uw_write_header(ctx, "Content-Type: ");
adamc@741 3945 uw_write_header(ctx, mimeType);
adam@1934 3946 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369 3947 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134 3948 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741 3949 ctx->outHeaders.front += len;
adamc@1066 3950 uw_write_header(ctx, "\r\n");
adam@1471 3951 if (oldh) uw_write_header(ctx, oldh);
adamc@741 3952
adam@1369 3953 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741 3954
adamc@741 3955 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741 3956 cl->func(cl->arg);
adamc@741 3957
adamc@741 3958 ctx->cleanup_front = ctx->cleanup;
adamc@741 3959
adamc@1065 3960 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065 3961 }
adamc@1065 3962
adam@2046 3963 void uw_replace_page(uw_context ctx, const char *data, size_t size) {
adam@2046 3964 uw_buffer_reset(&ctx->page);
adam@2046 3965 ctx_uw_buffer_append(ctx, "page", &ctx->page, data, size);
adam@2046 3966 }
adam@2046 3967
adam@1932 3968 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932 3969 cleanup *cl;
adam@1932 3970 int len;
adam@1932 3971 char *oldh;
adam@1932 3972
adam@1932 3973 if (!ctx->allowed_to_return_indirectly)
adam@1932 3974 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932 3975
adam@1932 3976 ctx->returning_indirectly = 1;
adam@1932 3977 oldh = old_headers(ctx);
adam@1932 3978 uw_buffer_reset(&ctx->outHeaders);
adam@1932 3979
adam@1932 3980 uw_write_header(ctx, on_success);
adam@1932 3981 uw_write_header(ctx, "Content-Type: ");
adam@1932 3982 uw_write_header(ctx, mimeType);
adam@1934 3983 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932 3984 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932 3985 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932 3986 ctx->outHeaders.front += len;
adam@1932 3987 uw_write_header(ctx, "\r\n");
adam@1932 3988 if (oldh) uw_write_header(ctx, oldh);
adam@1932 3989
adam@1932 3990 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932 3991 cl->func(cl->arg);
adam@1932 3992
adam@1932 3993 ctx->cleanup_front = ctx->cleanup;
adam@1932 3994
adam@1932 3995 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932 3996 }
adam@1932 3997
adamc@1065 3998 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065 3999 cleanup *cl;
adamc@1066 4000 char *s;
adam@1471 4001 char *oldh;
adamc@1065 4002
adam@1451 4003 if (!ctx->allowed_to_return_indirectly)
adam@1451 4004 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451 4005
adamc@1065 4006 ctx->returning_indirectly = 1;
adam@1471 4007 oldh = old_headers(ctx);
adam@1369 4008 uw_buffer_reset(&ctx->page);
adam@1369 4009 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369 4010 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369 4011 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369 4012 uw_buffer_reset(&ctx->outHeaders);
adamc@1065 4013
adam@1409 4014 if (on_success[0])
adam@1409 4015 uw_write_header(ctx, on_redirect);
adam@1409 4016 else
adam@1409 4017 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409 4018 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066 4019 if (s) {
adamc@1066 4020 char *s2;
adam@1409 4021 if (s[0] == '\n') ++s;
adam@1409 4022 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066 4023 *s2 = 0;
adamc@1066 4024 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066 4025 uw_write_header(ctx, s);
adamc@1066 4026 uw_write_header(ctx, "\n");
adamc@1066 4027 }
adamc@1066 4028 }
adamc@1066 4029 }
adamc@1066 4030
adamc@1065 4031 uw_write_header(ctx, "Location: ");
adamc@1065 4032 uw_write_header(ctx, url);
adamc@1065 4033 uw_write_header(ctx, "\r\n\r\n");
adam@1471 4034 if (oldh) uw_write_header(ctx, oldh);
adamc@1065 4035
adamc@1065 4036 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065 4037 cl->func(cl->arg);
adamc@1065 4038
adamc@1065 4039 ctx->cleanup_front = ctx->cleanup;
adamc@1065 4040
adamc@1065 4041 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741 4042 }
adamc@874 4043
adamc@874 4044 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467 4045 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874 4046
adamc@874 4047 for (; *s; ++s) {
adamc@874 4048 if (s[0] == '\'') {
adamc@874 4049 *r++ = '\'';
adamc@874 4050 for (++s; *s; ++s) {
adamc@874 4051 if (s[0] == '\'') {
adamc@874 4052 *r++ = '\'';
adamc@874 4053 break;
adamc@874 4054 } else if (s[0] == '\\') {
adam@1467 4055 *r++ = '\\';
adam@1467 4056 *r++ = s[1];
adam@1467 4057 ++s;
adamc@874 4058 } else
adamc@874 4059 *r++ = s[0];
adamc@874 4060 }
adamc@874 4061 if (*s == 0) break;
adam@1467 4062 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467 4063 s += 3;
adamc@874 4064 else
adamc@874 4065 *r++ = s[0];
adamc@874 4066 }
adamc@874 4067
adam@1467 4068 *r = 0;
adam@1467 4069 return ret;
adamc@874 4070 }
adamc@874 4071
adamc@922 4072 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922 4073 va_list ap;
adamc@922 4074 size_t len = 1;
adamc@922 4075 char *s, *r, *s2;
phurst@1981 4076
adamc@922 4077 va_start(ap, ctx);
adamc@922 4078 for (s = va_arg(ap, char*); s; s = va_arg(ap, char*))
adamc@922 4079 len += strlen(s);
adamc@922 4080 va_end(ap);
adamc@922 4081
adamc@922 4082 r = uw_malloc(ctx, len);
adamc@922 4083 va_start(ap, ctx);
adamc@922 4084 for (s2 = r, s = va_arg(ap, char*); s; s = va_arg(ap, char*))
adamc@922 4085 while (*s)
adamc@922 4086 *s2++ = *s++;
adamc@922 4087 va_end(ap);
adamc@922 4088 *s2 = 0;
adamc@922 4089
adamc@922 4090 return r;
adamc@922 4091 }
adamc@1006 4092
adam@1365 4093 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050 4094
adamc@1006 4095 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365 4096 uw_Basis_time r = { time(NULL) };
adam@1365 4097 return r;
adamc@1006 4098 }
adamc@1061 4099
adam@1369 4100 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369 4101 tm.seconds += n;
adam@1365 4102 return tm;
adamc@1138 4103 }
adamc@1138 4104
adam@1514 4105 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514 4106 return difftime(tm2.seconds, tm1.seconds);
adam@1514 4107 }
adam@1514 4108
adam@1685 4109 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685 4110 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685 4111 }
adam@1685 4112
adam@2187 4113 uw_Basis_time uw_Basis_fromMilliseconds(uw_context ctx, uw_Basis_int n) {
adam@2187 4114 uw_Basis_time tm = {n / 1000, n % 1000 * 1000};
adam@2187 4115 return tm;
adam@2187 4116 }
adam@2187 4117
adam@1685 4118 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685 4119 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685 4120 }
adam@1685 4121
adam@1514 4122 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514 4123 return tm.seconds;
adam@1514 4124 }
adam@1514 4125
phurst@1971 4126 uw_Basis_time uw_Basis_fromDatetime(uw_context ctx, uw_Basis_int year, uw_Basis_int month, uw_Basis_int day, uw_Basis_int hour, uw_Basis_int minute, uw_Basis_int second) {
phurst@1971 4127 struct tm tm = { .tm_year = year - 1900, .tm_mon = month, .tm_mday = day,
adam@2015 4128 .tm_hour = hour, .tm_min = minute, .tm_sec = second,
adam@2015 4129 .tm_isdst = -1 };
phurst@1984 4130 uw_Basis_time r = { timelocal(&tm) };
phurst@1971 4131 return r;
phurst@1971 4132 }
phurst@1971 4133
phurst@1971 4134 uw_Basis_int uw_Basis_datetimeYear(uw_context ctx, uw_Basis_time time) {
phurst@1971 4135 struct tm tm;
phurst@1982 4136 localtime_r(&time.seconds, &tm);
phurst@1971 4137 return tm.tm_year + 1900;
phurst@1971 4138 }
phurst@1971 4139
phurst@1971 4140 uw_Basis_int uw_Basis_datetimeMonth(uw_context ctx, uw_Basis_time time) {
phurst@1971 4141 struct tm tm;
phurst@1982 4142 localtime_r(&time.seconds, &tm);
phurst@1971 4143 return tm.tm_mon;
phurst@1971 4144 }
phurst@1971 4145
phurst@1971 4146 uw_Basis_int uw_Basis_datetimeDay(uw_context ctx, uw_Basis_time time) {
phurst@1971 4147 struct tm tm;
phurst@1982 4148 localtime_r(&time.seconds, &tm);
phurst@1971 4149 return tm.tm_mday;
phurst@1971 4150 }
phurst@1971 4151
phurst@1971 4152 uw_Basis_int uw_Basis_datetimeHour(uw_context ctx, uw_Basis_time time) {
phurst@1971 4153 struct tm tm;
phurst@1982 4154 localtime_r(&time.seconds, &tm);
phurst@1971 4155 return tm.tm_hour;
phurst@1971 4156 }
phurst@1971 4157
phurst@1971 4158 uw_Basis_int uw_Basis_datetimeMinute(uw_context ctx, uw_Basis_time time) {
phurst@1971 4159 struct tm tm;
phurst@1982 4160 localtime_r(&time.seconds, &tm);
phurst@1971 4161 return tm.tm_min;
phurst@1971 4162 }
phurst@1971 4163
phurst@1971 4164 uw_Basis_int uw_Basis_datetimeSecond(uw_context ctx, uw_Basis_time time) {
phurst@1971 4165 struct tm tm;
phurst@1982 4166 localtime_r(&time.seconds, &tm);
phurst@1971 4167 return tm.tm_sec;
phurst@1971 4168 }
phurst@1971 4169
phurst@1973 4170 uw_Basis_int uw_Basis_datetimeDayOfWeek(uw_context ctx, uw_Basis_time time) {
phurst@1973 4171 struct tm tm;
phurst@1982 4172 localtime_r(&time.seconds, &tm);
phurst@1973 4173 return tm.tm_wday;
phurst@1973 4174 }
phurst@1971 4175
phurst@1971 4176
adamc@1061 4177 void *uw_get_global(uw_context ctx, char *name) {
adamc@1061 4178 int i;
adamc@1061 4179
adamc@1061 4180 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061 4181 if (!strcmp(name, ctx->globals[i].name))
adamc@1061 4182 return ctx->globals[i].data;
adamc@1061 4183
adamc@1061 4184 return NULL;
adamc@1061 4185 }
adamc@1061 4186
adamc@1113 4187 size_t uw_globals_max = SIZE_MAX;
adamc@1113 4188
adamc@1061 4189 void uw_set_global(uw_context ctx, char *name, void *data, void (*free)(void*)) {
adamc@1061 4190 int i;
adamc@1061 4191
adamc@1061 4192 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061 4193 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089 4194 if (ctx->globals[i].free)
adamc@1061 4195 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061 4196 ctx->globals[i].data = data;
adamc@1061 4197 ctx->globals[i].free = free;
adamc@1061 4198 return;
adamc@1061 4199 }
adamc@1089 4200
adamc@1113 4201 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113 4202 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113 4203
adamc@1061 4204 ++ctx->n_globals;
adamc@1061 4205 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061 4206 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061 4207 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061 4208 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061 4209 }
adamc@1061 4210
adamc@1061 4211 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153 4212 return !!isalnum((int)c);
adamc@1061 4213 }
adamc@1061 4214
adamc@1061 4215 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153 4216 return !!isalpha((int)c);
adamc@1061 4217 }
adamc@1061 4218
adamc@1061 4219 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153 4220 return !!isblank((int)c);
adamc@1061 4221 }
adamc@1061 4222
adamc@1061 4223 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153 4224 return !!iscntrl((int)c);
adamc@1061 4225 }
adamc@1061 4226
adamc@1061 4227 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153 4228 return !!isdigit((int)c);
adamc@1061 4229 }
adamc@1061 4230
adamc@1061 4231 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153 4232 return !!isgraph((int)c);
adamc@1061 4233 }
adamc@1061 4234
adamc@1061 4235 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153 4236 return !!islower((int)c);
adamc@1061 4237 }
adamc@1061 4238
adamc@1061 4239 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153 4240 return !!isprint((int)c);
adamc@1061 4241 }
adamc@1061 4242
adamc@1061 4243 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153 4244 return !!ispunct((int)c);
adamc@1061 4245 }
adamc@1061 4246
adamc@1061 4247 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153 4248 return !!isspace((int)c);
adamc@1061 4249 }
adamc@1063 4250
adamc@1061 4251 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153 4252 return !!isupper((int)c);
adamc@1061 4253 }
adamc@1061 4254
adamc@1061 4255 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153 4256 return !!isxdigit((int)c);
adamc@1061 4257 }
adamc@1061 4258
adamc@1061 4259 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153 4260 return tolower((int)c);
adamc@1061 4261 }
adamc@1061 4262
adamc@1061 4263 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153 4264 return toupper((int)c);
adamc@1061 4265 }
adamc@1066 4266
adamc@1128 4267 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128 4268 return (unsigned char)c;
adamc@1128 4269 }
adamc@1128 4270
adamc@1128 4271 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128 4272 return n;
adamc@1128 4273 }
adamc@1128 4274
adamc@1066 4275 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066 4276 return ctx->current_url;
adamc@1066 4277 }
adamc@1066 4278
adamc@1066 4279 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066 4280 ctx->current_url = s;
adamc@1066 4281 }
adamc@1114 4282
adamc@1114 4283 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114 4284 ctx->deadline = n;
adamc@1114 4285 }
adamc@1114 4286
adamc@1114 4287 void uw_check_deadline(uw_context ctx) {
adamc@1114 4288 if (uw_time > ctx->deadline)
adamc@1114 4289 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114 4290 }
adamc@1115 4291
adamc@1115 4292 size_t uw_database_max = SIZE_MAX;
adamc@1120 4293
adam@1389 4294 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@2143 4295 if (ctx->loggers->log_debug)
adam@2143 4296 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@2143 4297 else
adam@2143 4298 fprintf(stderr, "%s\n", s);
adam@1389 4299 return 0;
adam@1389 4300 }
adam@1389 4301
adamc@1120 4302 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
grrwlf@1997 4303 if (ctx->loggers->log_debug)
grrwlf@1997 4304 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@1334 4305 else
adam@1334 4306 fprintf(stderr, "%s\n", s);
adamc@1120 4307 return uw_unit_v;
adamc@1120 4308 }
adamc@1250 4309
adamc@1250 4310 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@2104 4311 int r = my_rand();
adam@2104 4312
adam@2104 4313 if (r >= 0)
adam@2104 4314 return r;
adam@1486 4315 else
adam@1486 4316 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250 4317 }
adam@1347 4318
adam@1347 4319 void uw_noPostBody(uw_context ctx) {
adam@1347 4320 ctx->hasPostBody = 0;
adam@1347 4321 }
adam@1347 4322
adam@1347 4323 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347 4324 ctx->hasPostBody = 1;
adam@1347 4325 ctx->postBody = pb;
adam@1347 4326 }
adam@1347 4327
adam@1347 4328 int uw_hasPostBody(uw_context ctx) {
adam@1347 4329 return ctx->hasPostBody;
adam@1347 4330 }
adam@1347 4331
adam@1386 4332 void uw_isPost(uw_context ctx) {
adam@1386 4333 ctx->isPost = 1;
adam@1386 4334 }
adam@1386 4335
adam@1386 4336 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386 4337 return ctx->isPost;
adam@1386 4338 }
adam@1386 4339
adam@1485 4340 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485 4341 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485 4342 }
adam@1485 4343
adam@1370 4344 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370 4345 ctx->queryString = s;
adam@1370 4346 }
adam@1370 4347
adam@1370 4348 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370 4349 return ctx->queryString;
adam@1370 4350 }
adam@1370 4351
adam@1347 4352 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347 4353 if (ctx->hasPostBody)
adam@1347 4354 return ctx->postBody;
adam@1347 4355 else
adam@1347 4356 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347 4357 }
adam@1349 4358
adam@1349 4359 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349 4360 int r = setjmp(ctx->jmp_buf);
adam@1349 4361
adam@1349 4362 if (r == 0) {
adam@1936 4363 uw_ensure_transaction(ctx);
adam@1418 4364
adam@1349 4365 callback(ctx);
adam@1349 4366 }
adam@1349 4367
adam@1349 4368 return r;
adam@1349 4369 }
adam@1360 4370
adam@1360 4371 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397 4372 char buf[14];
adam@1397 4373 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360 4374 }
adam@1365 4375
adam@1365 4376 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365 4377 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365 4378 }
adam@1365 4379
adam@1365 4380 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@2034 4381 return !!(t1.seconds < t2.seconds || (t1.seconds == t2.seconds && t1.microseconds < t2.microseconds));
adam@1365 4382 }
adam@1365 4383
adam@1365 4384 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365 4385 return !!(uw_Basis_eq_time(ctx, t1, t2) || uw_Basis_lt_time(ctx, t1, t2));
adam@1365 4386 }
adam@1365 4387
adam@1372 4388 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374 4389 struct tm stm = {};
adam@1375 4390 char *end = strchr(s, 0);
adam@1449 4391 stm.tm_isdst = -1;
adam@1375 4392
adam@1632 4393 if (strptime(s, TIME_FMT_PG, &stm) == end || strptime(s, TIME_FMT, &stm) == end || strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373 4394 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375 4395
kkallio@1448 4396 r->seconds = timegm(&stm);
adam@1373 4397 r->microseconds = 0;
adam@1373 4398
adam@1373 4399 return r;
adam@1374 4400 }
adam@1374 4401 else
adam@1373 4402 return NULL;
adam@1372 4403 }
adam@1407 4404
adam@1407 4405 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407 4406 int r = setjmp(ctx->jmp_buf);
adam@1407 4407
adam@1407 4408 if (ctx->app->on_error) {
adam@1407 4409 if (r == 0) {
adam@1936 4410 uw_ensure_transaction(ctx);
adam@1407 4411
adam@1409 4412 uw_buffer_reset(&ctx->outHeaders);
adam@1409 4413 if (on_success[0])
adam@1409 4414 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409 4415 else
adam@1409 4416 uw_write_header(ctx, "Status: ");
adam@1409 4417 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919 4418 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1956 4419 uw_write(ctx, ctx->app->is_html5 ? uw_begin_html5 : uw_begin_xhtml);
adam@1407 4420 ctx->app->on_error(ctx, msg);
adam@1407 4421 uw_write(ctx, "</html>");
adam@1407 4422 }
adam@1407 4423
adam@1407 4424 return r;
adam@1407 4425 } else
adam@1407 4426 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407 4427 }
adam@1451 4428
adam@1451 4429 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451 4430 ctx->allowed_to_return_indirectly = 1;
adam@1451 4431 }
adam@1483 4432
adam@1556 4433 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703 4434 int len;
adam@1703 4435 char *r;
adam@1703 4436
adam@1703 4437 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703 4438 r = ctx->heap.front;
adam@1703 4439 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703 4440 ctx->heap.front += len+1;
adam@1703 4441 return r;
adam@1556 4442 }
adam@1571 4443
adam@1571 4444 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571 4445 return n;
adam@1571 4446 }
adam@1571 4447
adam@1571 4448 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571 4449 return ceil(n);
adam@1571 4450 }
adam@1571 4451
adam@1571 4452 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571 4453 return trunc(n);
adam@1571 4454 }
adam@1571 4455
adam@1571 4456 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571 4457 return round(n);
adam@1571 4458 }
adam@1755 4459
adam@1755 4460 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755 4461 char *p;
adam@1755 4462
adam@1755 4463 for (p = s; *p; ++p) {
adam@1755 4464 char c = *p;
adam@1801 4465 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755 4466 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755 4467 }
adam@1755 4468
adam@1755 4469 return s;
adam@1755 4470 }
adam@1755 4471
adam@1755 4472 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755 4473 char *p;
adam@1755 4474
adam@1755 4475 for (p = s; *p; ++p) {
adam@1755 4476 char c = *p;
adam@1801 4477 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755 4478 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755 4479 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755 4480 }
adam@1755 4481
adam@1755 4482 return s;
adam@1755 4483 }
adam@1755 4484
adam@1755 4485 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755 4486 char *p;
adam@1755 4487
adam@1755 4488 if (!*s)
adam@1755 4489 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755 4490
adam@1801 4491 if (!islower((int)s[0]) && s[0] != '_')
adam@1755 4492 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755 4493
adam@1755 4494 for (p = s; *p; ++p) {
adam@1755 4495 char c = *p;
adam@1801 4496 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755 4497 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755 4498 }
adam@1755 4499
adam@1755 4500 return s;
adam@1755 4501 }
adam@1787 4502
adam@1787 4503 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787 4504 return f.name;
adam@1787 4505 }
adam@1787 4506
adam@1787 4507 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787 4508 return f.value;
adam@1787 4509 }
adam@1787 4510
adam@1787 4511 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787 4512 return f.remaining;
adam@1787 4513 }
adam@1787 4514
adam@1787 4515 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788 4516 char *unurl;
adam@1787 4517 uw_Basis_postField *f;
adam@1787 4518
adam@1788 4519 if (!ctx->hasPostBody)
adam@1788 4520 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788 4521
adam@1788 4522 if (s < ctx->postBody.data || s >= ctx->postBody.data + ctx->postBody.len)
adam@1787 4523 return NULL;
adam@1787 4524
adam@1787 4525 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788 4526 unurl = s;
adam@1787 4527 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788 4528 s = strchr(s, 0);
adam@1788 4529 if (!s)
adam@1788 4530 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788 4531 ++s;
adam@1788 4532 unurl = s;
adam@1788 4533 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788 4534 s = strchr(s, 0);
adam@1788 4535 if (!s)
adam@1788 4536 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788 4537 f->remaining = s+1;
adam@1787 4538
adam@1787 4539 return f;
adam@1787 4540 }
adam@2008 4541
adam@2008 4542 uw_Basis_string uw_Basis_blessData(uw_context ctx, uw_Basis_string s) {
adam@2008 4543 char *p = s;
adam@2008 4544
adam@2008 4545 for (; *p; ++p)
adam@2008 4546 if (!isalnum(*p) && *p != '-' && *p != '_')
adam@2008 4547 uw_error(ctx, FATAL, "Illegal HTML5 data-* attribute: %s", s);
adam@2008 4548
adam@2008 4549 return s;
adam@2008 4550 }
adam@2073 4551
adam@2073 4552 int uw_remoteSock(uw_context ctx) {
adam@2073 4553 return ctx->remoteSock;
adam@2073 4554 }
adam@2073 4555
adam@2073 4556 void uw_set_remoteSock(uw_context ctx, int sock) {
adam@2073 4557 ctx->remoteSock = sock;
adam@2073 4558 }
ziv@2234 4559
ziv@2234 4560
ziv@2234 4561 // Sqlcache
ziv@2234 4562
ziv@2284 4563 typedef struct uw_Sqlcache_Entry {
ziv@2284 4564 char *key;
ziv@2284 4565 uw_Sqlcache_Value *value;
ziv@2284 4566 unsigned long timeInvalid;
ziv@2284 4567 UT_hash_handle hh;
ziv@2284 4568 } uw_Sqlcache_Entry;
ziv@2284 4569
ziv@2288 4570 static void uw_Sqlcache_freeValue(uw_Sqlcache_Value *value) {
ziv@2234 4571 if (value) {
ziv@2234 4572 free(value->result);
ziv@2234 4573 free(value->output);
ziv@2234 4574 free(value);
ziv@2234 4575 }
ziv@2234 4576 }
ziv@2234 4577
ziv@2288 4578 static void uw_Sqlcache_freeEntry(uw_Sqlcache_Entry* entry) {
ziv@2279 4579 if (entry) {
ziv@2279 4580 free(entry->key);
ziv@2279 4581 uw_Sqlcache_freeValue(entry->value);
ziv@2279 4582 free(entry);
ziv@2279 4583 }
ziv@2279 4584 }
ziv@2279 4585
ziv@2279 4586 // TODO: pick a number.
ziv@2288 4587 static unsigned int uw_Sqlcache_maxSize = 1234567890;
ziv@2288 4588
ziv@2288 4589 static void uw_Sqlcache_delete(uw_Sqlcache_Cache *cache, uw_Sqlcache_Entry *entry) {
ziv@2291 4590 if (entry) {
ziv@2291 4591 HASH_DEL(cache->table, entry);
ziv@2291 4592 uw_Sqlcache_freeEntry(entry);
ziv@2291 4593 }
ziv@2279 4594 }
ziv@2279 4595
ziv@2288 4596 static uw_Sqlcache_Entry *uw_Sqlcache_find(uw_Sqlcache_Cache *cache, char *key, size_t len, int bump) {
ziv@2279 4597 uw_Sqlcache_Entry *entry = NULL;
ziv@2279 4598 HASH_FIND(hh, cache->table, key, len, entry);
ziv@2279 4599 if (entry && bump) {
ziv@2279 4600 // Bump for LRU purposes.
ziv@2279 4601 HASH_DEL(cache->table, entry);
ziv@2279 4602 // Important that we use [entry->key], because [key] might be ephemeral.
ziv@2279 4603 HASH_ADD_KEYPTR(hh, cache->table, entry->key, len, entry);
ziv@2279 4604 }
ziv@2279 4605 return entry;
ziv@2279 4606 }
ziv@2279 4607
ziv@2288 4608 static void uw_Sqlcache_add(uw_Sqlcache_Cache *cache, uw_Sqlcache_Entry *entry, size_t len) {
ziv@2279 4609 HASH_ADD_KEYPTR(hh, cache->table, entry->key, len, entry);
ziv@2279 4610 if (HASH_COUNT(cache->table) > uw_Sqlcache_maxSize) {
ziv@2279 4611 // Deletes the first element of the cache.
ziv@2279 4612 uw_Sqlcache_delete(cache, cache->table);
ziv@2279 4613 }
ziv@2279 4614 }
ziv@2279 4615
ziv@2288 4616 static unsigned long uw_Sqlcache_getTimeNow(uw_Sqlcache_Cache *cache) {
ziv@2279 4617 return ++cache->timeNow;
ziv@2279 4618 }
ziv@2279 4619
ziv@2288 4620 static unsigned long uw_Sqlcache_timeMax(unsigned long x, unsigned long y) {
ziv@2279 4621 return x > y ? x : y;
ziv@2279 4622 }
ziv@2279 4623
ziv@2288 4624 static char uw_Sqlcache_keySep = '_';
ziv@2288 4625
ziv@2288 4626 static char *uw_Sqlcache_allocKeyBuffer(char **keys, size_t numKeys) {
ziv@2279 4627 size_t len = 0;
ziv@2279 4628 while (numKeys-- > 0) {
ziv@2279 4629 char* k = keys[numKeys];
ziv@2279 4630 if (!k) {
adam@2296 4631 // Can only happen when flushing, in which case we don't need anything past the null key.
ziv@2279 4632 break;
ziv@2234 4633 }
ziv@2279 4634 // Leave room for separator.
ziv@2279 4635 len += 1 + strlen(k);
ziv@2234 4636 }
ziv@2279 4637 char *buf = malloc(len+1);
ziv@2279 4638 // If nothing is copied into the buffer, it should look like it has length 0.
ziv@2279 4639 buf[0] = 0;
ziv@2279 4640 return buf;
ziv@2279 4641 }
ziv@2279 4642
ziv@2288 4643 static char *uw_Sqlcache_keyCopy(char *buf, char *key) {
ziv@2279 4644 *buf++ = uw_Sqlcache_keySep;
ziv@2279 4645 return stpcpy(buf, key);
ziv@2279 4646 }
ziv@2279 4647
ziv@2279 4648 // The NUL-terminated prefix of [key] below always looks something like "_k1_k2_k3..._kn".
ziv@2285 4649
ziv@2285 4650 uw_Sqlcache_Value *uw_Sqlcache_check(uw_context ctx, uw_Sqlcache_Cache *cache, char **keys) {
ziv@2288 4651 int doBump = random() % 1024 == 0;
ziv@2288 4652 if (doBump) {
ziv@2288 4653 pthread_rwlock_wrlock(&cache->lockIn);
ziv@2288 4654 } else {
ziv@2288 4655 pthread_rwlock_rdlock(&cache->lockIn);
ziv@2288 4656 }
ziv@2281 4657 size_t numKeys = cache->numKeys;
ziv@2279 4658 char *key = uw_Sqlcache_allocKeyBuffer(keys, numKeys);
ziv@2279 4659 char *buf = key;
ziv@2279 4660 time_t timeInvalid = cache->timeInvalid;
ziv@2279 4661 uw_Sqlcache_Entry *entry;
ziv@2286 4662 if (numKeys == 0) {
ziv@2286 4663 entry = cache->table;
ziv@2279 4664 if (!entry) {
ziv@2279 4665 free(key);
ziv@2288 4666 pthread_rwlock_unlock(&cache->lockIn);
ziv@2279 4667 return NULL;
ziv@2279 4668 }
ziv@2286 4669 } else {
ziv@2286 4670 while (numKeys-- > 0) {
ziv@2286 4671 buf = uw_Sqlcache_keyCopy(buf, keys[numKeys]);
ziv@2286 4672 size_t len = buf - key;
ziv@2288 4673 entry = uw_Sqlcache_find(cache, key, len, doBump);
ziv@2286 4674 if (!entry) {
ziv@2286 4675 free(key);
ziv@2288 4676 pthread_rwlock_unlock(&cache->lockIn);
ziv@2286 4677 return NULL;
ziv@2286 4678 }
ziv@2286 4679 timeInvalid = uw_Sqlcache_timeMax(timeInvalid, entry->timeInvalid);
ziv@2286 4680 }
ziv@2286 4681 free(key);
ziv@2234 4682 }
ziv@2279 4683 uw_Sqlcache_Value *value = entry->value;
ziv@2288 4684 pthread_rwlock_unlock(&cache->lockIn);
ziv@2288 4685 // ASK: though the argument isn't trivial, this is safe, right?
ziv@2288 4686 // Returning outside the lock is safe because updates happen at commit time.
ziv@2288 4687 // Those are the only times the returned value or its strings can get freed.
ziv@2288 4688 // Handler output is a new string, so it's safe to free this at commit time.
ziv@2279 4689 return value && value->timeValid > timeInvalid ? value : NULL;
ziv@2279 4690 }
ziv@2279 4691
ziv@2288 4692 static void uw_Sqlcache_storeCommitOne(uw_Sqlcache_Cache *cache, char **keys, uw_Sqlcache_Value *value) {
ziv@2288 4693 pthread_rwlock_wrlock(&cache->lockIn);
ziv@2281 4694 size_t numKeys = cache->numKeys;
ziv@2279 4695 time_t timeNow = uw_Sqlcache_getTimeNow(cache);
ziv@2279 4696 uw_Sqlcache_Entry *entry;
ziv@2286 4697 if (numKeys == 0) {
ziv@2286 4698 entry = cache->table;
ziv@2279 4699 if (!entry) {
adam@2296 4700 entry = calloc(1, sizeof(uw_Sqlcache_Entry));
ziv@2288 4701 entry->key = NULL;
ziv@2279 4702 entry->value = NULL;
ziv@2285 4703 entry->timeInvalid = 0;
ziv@2286 4704 cache->table = entry;
ziv@2234 4705 }
ziv@2286 4706 } else {
ziv@2288 4707 char *key = uw_Sqlcache_allocKeyBuffer(keys, numKeys);
ziv@2288 4708 char *buf = key;
ziv@2286 4709 while (numKeys-- > 0) {
ziv@2286 4710 buf = uw_Sqlcache_keyCopy(buf, keys[numKeys]);
ziv@2286 4711 size_t len = buf - key;
ziv@2286 4712 entry = uw_Sqlcache_find(cache, key, len, 1);
ziv@2286 4713 if (!entry) {
adam@2296 4714 entry = calloc(1, sizeof(uw_Sqlcache_Entry));
ziv@2286 4715 entry->key = strdup(key);
ziv@2286 4716 entry->value = NULL;
ziv@2286 4717 entry->timeInvalid = 0;
ziv@2286 4718 uw_Sqlcache_add(cache, entry, len);
ziv@2286 4719 }
ziv@2286 4720 }
ziv@2286 4721 free(key);
ziv@2234 4722 }
adam@2297 4723 if (entry->value && entry->value->timeValid < value->timeValid) {
adam@2297 4724 uw_Sqlcache_freeValue(entry->value);
adam@2297 4725 entry->value = value;
adam@2297 4726 entry->value->timeValid = timeNow;
adam@2297 4727 }
ziv@2288 4728 pthread_rwlock_unlock(&cache->lockIn);
ziv@2288 4729 }
ziv@2288 4730
ziv@2288 4731 static void uw_Sqlcache_flushCommitOne(uw_Sqlcache_Cache *cache, char **keys) {
ziv@2288 4732 }
ziv@2288 4733
ziv@2288 4734 static void uw_Sqlcache_commit(void *data) {
ziv@2288 4735 uw_context ctx = (uw_context)data;
ziv@2288 4736 uw_Sqlcache_Update *update = ctx->cacheUpdate;
ziv@2288 4737 while (update) {
ziv@2288 4738 uw_Sqlcache_Cache *cache = update->cache;
ziv@2288 4739 char **keys = update->keys;
ziv@2288 4740 if (update->value) {
ziv@2288 4741 uw_Sqlcache_storeCommitOne(cache, keys, update->value);
ziv@2288 4742 } else {
ziv@2288 4743 uw_Sqlcache_flushCommitOne(cache, keys);
ziv@2288 4744 }
ziv@2288 4745 update = update->next;
ziv@2288 4746 }
ziv@2288 4747 }
ziv@2288 4748
ziv@2288 4749 static void uw_Sqlcache_free(void *data, int dontCare) {
ziv@2285 4750 uw_context ctx = (uw_context)data;
ziv@2285 4751 uw_Sqlcache_Update *update = ctx->cacheUpdate;
ziv@2285 4752 while (update) {
ziv@2285 4753 char** keys = update->keys;
ziv@2285 4754 size_t numKeys = update->cache->numKeys;
ziv@2282 4755 while (numKeys-- > 0) {
ziv@2282 4756 free(keys[numKeys]);
ziv@2282 4757 }
ziv@2282 4758 free(keys);
ziv@2285 4759 // Don't free [update->value]: it's in the cache now!
ziv@2285 4760 uw_Sqlcache_Update *nextUpdate = update->next;
ziv@2285 4761 free(update);
ziv@2285 4762 update = nextUpdate;
ziv@2282 4763 }
ziv@2285 4764 ctx->cacheUpdate = NULL;
ziv@2285 4765 ctx->cacheUpdateTail = NULL;
ziv@2288 4766 uw_Sqlcache_Unlock *unlock = ctx->cacheUnlock;
ziv@2288 4767 while (unlock) {
ziv@2288 4768 pthread_rwlock_unlock(unlock->lock);
ziv@2288 4769 uw_Sqlcache_Unlock *nextUnlock = unlock->next;
ziv@2288 4770 free(unlock);
ziv@2288 4771 unlock = nextUnlock;
ziv@2282 4772 }
ziv@2288 4773 ctx->cacheUnlock = NULL;
ziv@2288 4774 }
ziv@2288 4775
ziv@2288 4776 static void uw_Sqlcache_pushUnlock(uw_context ctx, pthread_rwlock_t *lock) {
ziv@2288 4777 if (!ctx->cacheUnlock) {
ziv@2288 4778 // Just need one registered commit for both updating and unlocking.
ziv@2288 4779 uw_register_transactional(ctx, ctx, uw_Sqlcache_commit, NULL, uw_Sqlcache_free);
ziv@2288 4780 }
ziv@2288 4781 uw_Sqlcache_Unlock *unlock = malloc(sizeof(uw_Sqlcache_Unlock));
ziv@2288 4782 unlock->lock = lock;
ziv@2288 4783 unlock->next = ctx->cacheUnlock;
ziv@2288 4784 ctx->cacheUnlock = unlock;
ziv@2288 4785 }
ziv@2288 4786
ziv@2288 4787 void uw_Sqlcache_rlock(uw_context ctx, uw_Sqlcache_Cache *cache) {
ziv@2288 4788 pthread_rwlock_rdlock(&cache->lockOut);
ziv@2288 4789 uw_Sqlcache_pushUnlock(ctx, &cache->lockOut);
ziv@2288 4790 }
ziv@2288 4791
ziv@2288 4792 void uw_Sqlcache_wlock(uw_context ctx, uw_Sqlcache_Cache *cache) {
ziv@2288 4793 pthread_rwlock_wrlock(&cache->lockOut);
ziv@2288 4794 uw_Sqlcache_pushUnlock(ctx, &cache->lockOut);
ziv@2288 4795 }
ziv@2288 4796
ziv@2288 4797 static char **uw_Sqlcache_copyKeys(char **keys, size_t numKeys) {
ziv@2284 4798 char **copy = malloc(sizeof(char *) * numKeys);
ziv@2284 4799 while (numKeys-- > 0) {
ziv@2285 4800 char *k = keys[numKeys];
ziv@2284 4801 copy[numKeys] = k ? strdup(k) : NULL;
ziv@2284 4802 }
ziv@2284 4803 return copy;
ziv@2282 4804 }
ziv@2282 4805
ziv@2285 4806 void uw_Sqlcache_store(uw_context ctx, uw_Sqlcache_Cache *cache, char **keys, uw_Sqlcache_Value *value) {
ziv@2285 4807 uw_Sqlcache_Update *update = malloc(sizeof(uw_Sqlcache_Update));
ziv@2285 4808 update->cache = cache;
ziv@2285 4809 update->keys = uw_Sqlcache_copyKeys(keys, cache->numKeys);
ziv@2285 4810 update->value = value;
ziv@2285 4811 update->next = NULL;
adam@2297 4812 value->timeValid = uw_Sqlcache_getTimeNow(cache);
ziv@2285 4813 if (ctx->cacheUpdateTail) {
ziv@2285 4814 ctx->cacheUpdateTail->next = update;
ziv@2285 4815 } else {
ziv@2285 4816 ctx->cacheUpdate = update;
ziv@2285 4817 }
ziv@2285 4818 ctx->cacheUpdateTail = update;
ziv@2285 4819 }
ziv@2285 4820
ziv@2282 4821 void uw_Sqlcache_flush(uw_context ctx, uw_Sqlcache_Cache *cache, char **keys) {
ziv@2291 4822 // A flush has to happen immediately so that subsequent stores in the same transaction fail.
ziv@2291 4823 // This is safe to do because we will always call [uw_Sqlcache_wlock] earlier.
ziv@2291 4824 // If the transaction fails, the only harm done is a few extra cache misses.
ziv@2291 4825 pthread_rwlock_wrlock(&cache->lockIn);
ziv@2291 4826 size_t numKeys = cache->numKeys;
ziv@2291 4827 if (numKeys == 0) {
ziv@2291 4828 uw_Sqlcache_Entry *entry = cache->table;
ziv@2291 4829 if (entry) {
ziv@2291 4830 uw_Sqlcache_freeValue(entry->value);
ziv@2291 4831 entry->value = NULL;
ziv@2291 4832 }
ziv@2291 4833 } else {
ziv@2291 4834 char *key = uw_Sqlcache_allocKeyBuffer(keys, numKeys);
ziv@2291 4835 char *buf = key;
ziv@2291 4836 time_t timeNow = uw_Sqlcache_getTimeNow(cache);
ziv@2291 4837 while (numKeys-- > 0) {
ziv@2291 4838 char *k = keys[numKeys];
ziv@2291 4839 if (!k) {
ziv@2291 4840 size_t len = buf - key;
ziv@2291 4841 if (len == 0) {
ziv@2291 4842 // The first key was null.
ziv@2291 4843 cache->timeInvalid = timeNow;
ziv@2291 4844 } else {
ziv@2291 4845 uw_Sqlcache_Entry *entry = uw_Sqlcache_find(cache, key, len, 0);
ziv@2291 4846 if (entry) {
ziv@2291 4847 entry->timeInvalid = timeNow;
ziv@2291 4848 }
ziv@2291 4849 }
ziv@2291 4850 free(key);
ziv@2291 4851 pthread_rwlock_unlock(&cache->lockIn);
ziv@2291 4852 return;
ziv@2291 4853 }
ziv@2291 4854 buf = uw_Sqlcache_keyCopy(buf, k);
ziv@2291 4855 }
ziv@2291 4856 // All the keys were non-null, so we delete the pointed-to entry.
ziv@2291 4857 size_t len = buf - key;
ziv@2291 4858 uw_Sqlcache_Entry *entry = uw_Sqlcache_find(cache, key, len, 0);
ziv@2291 4859 free(key);
ziv@2291 4860 uw_Sqlcache_delete(cache, entry);
ziv@2291 4861 }
ziv@2291 4862 pthread_rwlock_unlock(&cache->lockIn);
ziv@2291 4863 }