annotate src/c/urweb.c @ 1936:6745eafff617

Start SQL transactions as read-only when possible, based on conservative program analysis
author Adam Chlipala <adam@chlipala.net>
date Thu, 12 Dec 2013 17:42:48 -0500
parents 420d129c4174
children d02c1a0d8082
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
adam@1431 25 uw_unit uw_unit_v = 0;
adamc@102 26
adamc@667 27
adamc@667 28 // Socket extras
adamc@667 29
adamc@863 30 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667 31 while (len > 0) {
adamc@856 32 ssize_t n = send(sock, buf, len, 0);
adamc@856 33
adamc@856 34 if (n < 0)
adamc@856 35 return n;
adamc@856 36
adamc@856 37 buf += n;
adamc@856 38 len -= n;
adamc@856 39 }
adamc@856 40
adamc@856 41 return 0;
adamc@856 42 }
adamc@856 43
adamc@856 44 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856 45 while (len > 0) {
adamc@856 46 ssize_t n = write(fd, buf, len);
adamc@667 47
adamc@667 48 if (n < 0)
adamc@667 49 return n;
adamc@667 50
adamc@667 51 buf += n;
adamc@667 52 len -= n;
adamc@667 53 }
adamc@667 54
adamc@667 55 return 0;
adamc@667 56 }
adamc@667 57
adamc@667 58
adamc@667 59 // Buffers
adamc@667 60
adam@1369 61 void uw_buffer_init(size_t max, uw_buffer *b, size_t s) {
adamc@1113 62 b->max = max;
adamc@667 63 b->front = b->start = malloc(s);
adamc@667 64 b->back = b->front + s;
adamc@667 65 }
adamc@667 66
adam@1369 67 void uw_buffer_free(uw_buffer *b) {
adamc@667 68 free(b->start);
adamc@667 69 }
adamc@667 70
adam@1369 71 void uw_buffer_reset(uw_buffer *b) {
adamc@667 72 b->front = b->start;
adamc@667 73 }
adamc@667 74
adam@1369 75 int uw_buffer_check(uw_buffer *b, size_t extra) {
adamc@667 76 if (b->back - b->front < extra) {
adamc@667 77 size_t desired = b->front - b->start + extra, next;
adamc@667 78 char *new_heap;
adamc@667 79
adamc@667 80 next = b->back - b->start;
adamc@667 81 if (next == 0)
adamc@667 82 next = 1;
adamc@667 83 for (; next < desired; next *= 2);
adamc@667 84
adamc@1134 85 if (next > b->max) {
adamc@1113 86 if (desired <= b->max)
adamc@1113 87 next = desired;
adamc@1113 88 else
adamc@1113 89 return 1;
adamc@1134 90 }
adamc@1113 91
adamc@667 92 new_heap = realloc(b->start, next);
adamc@667 93 b->front = new_heap + (b->front - b->start);
adamc@667 94 b->back = new_heap + next;
adamc@667 95 b->start = new_heap;
adamc@667 96 }
adamc@1113 97
adamc@1113 98 return 0;
adamc@1113 99 }
adamc@1113 100
adamc@1113 101 __attribute__((noreturn)) void uw_error(uw_context, failure_kind, const char *, ...);
adamc@1113 102
adam@1369 103 static void ctx_uw_buffer_check(uw_context ctx, const char *kind, uw_buffer *b, size_t extra) {
adam@1369 104 if (uw_buffer_check(b, extra))
adamc@1113 105 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@667 106 }
adamc@667 107
adam@1369 108 size_t uw_buffer_used(uw_buffer *b) {
adamc@667 109 return b->front - b->start;
adamc@667 110 }
adamc@667 111
adam@1369 112 size_t uw_buffer_avail(uw_buffer *b) {
adamc@667 113 return b->back - b->start;
adamc@667 114 }
adamc@667 115
adam@1369 116 int uw_buffer_append(uw_buffer *b, const char *s, size_t len) {
adam@1369 117 if (uw_buffer_check(b, len+1))
adamc@1113 118 return 1;
adamc@1113 119
adamc@1113 120 memcpy(b->front, s, len);
adamc@1113 121 b->front += len;
adamc@1113 122 *b->front = 0;
adamc@1113 123
adamc@1113 124 return 0;
adamc@1113 125 }
adamc@1113 126
adam@1369 127 static void ctx_uw_buffer_append(uw_context ctx, const char *kind, uw_buffer *b, const char *s, size_t len) {
adam@1369 128 ctx_uw_buffer_check(ctx, kind, b, len+1);
adamc@1113 129
adamc@668 130 memcpy(b->front, s, len);
adamc@668 131 b->front += len;
adamc@672 132 *b->front = 0;
adamc@668 133 }
adamc@667 134
adamc@668 135
adamc@672 136 // Persistent state types
adamc@667 137
adamc@667 138 typedef enum { UNUSED, USED } usage;
adamc@667 139
adamc@667 140 typedef struct client {
adamc@682 141 unsigned id;
adamc@667 142 usage mode;
adamc@682 143 int pass;
adamc@682 144 struct client *next;
adamc@689 145 pthread_mutex_t lock, pull_lock;
adam@1369 146 uw_buffer msgs;
adamc@682 147 int sock;
adamc@863 148 int (*send)(int sockfd, const void *buf, ssize_t len);
adamc@863 149 int (*close)(int fd);
adamc@682 150 time_t last_contact;
adamc@682 151 unsigned n_channels;
adamc@685 152 unsigned refcount;
adamc@1121 153 void *data;
adamc@667 154 } client;
adamc@667 155
adamc@672 156
adamc@672 157 // Persistent client state
adamc@672 158
adamc@682 159 static client **clients, *clients_free, *clients_used;
adamc@682 160 static unsigned n_clients;
adamc@667 161
adam@1707 162 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@1113 163 size_t uw_messages_max = SIZE_MAX;
adamc@1113 164 size_t uw_clients_max = SIZE_MAX;
adamc@1113 165
adamc@1121 166 void *uw_init_client_data();
adamc@1121 167 void uw_free_client_data(void *);
adamc@1121 168 void uw_copy_client_data(void *dst, void *src);
adamc@1121 169
adamc@682 170 static client *new_client() {
adamc@667 171 client *c;
adamc@667 172
adamc@667 173 pthread_mutex_lock(&clients_mutex);
adamc@667 174
adamc@667 175 if (clients_free) {
adamc@667 176 c = clients_free;
adamc@682 177 clients_free = clients_free->next;
adamc@667 178 }
adam@1672 179 else if (n_clients >= uw_clients_max) {
adam@1672 180 pthread_mutex_unlock(&clients_mutex);
adamc@1113 181 return NULL;
adam@1672 182 } else {
adamc@667 183 ++n_clients;
adamc@667 184 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667 185 c = malloc(sizeof(client));
adamc@667 186 c->id = n_clients-1;
adamc@682 187 pthread_mutex_init(&c->lock, NULL);
adamc@689 188 pthread_mutex_init(&c->pull_lock, NULL);
adam@1369 189 uw_buffer_init(uw_messages_max, &c->msgs, 0);
adamc@667 190 clients[n_clients-1] = c;
adamc@667 191 }
adamc@667 192
adamc@682 193 pthread_mutex_lock(&c->lock);
adamc@667 194 c->mode = USED;
adamc@682 195 c->pass = rand();
adamc@682 196 c->sock = -1;
adamc@682 197 c->last_contact = time(NULL);
adam@1369 198 uw_buffer_reset(&c->msgs);
adamc@682 199 c->n_channels = 0;
adamc@685 200 c->refcount = 0;
adamc@1121 201 c->data = uw_init_client_data();
adamc@682 202 pthread_mutex_unlock(&c->lock);
adamc@682 203
adamc@682 204 c->next = clients_used;
adamc@682 205 clients_used = c;
adamc@667 206
adamc@667 207 pthread_mutex_unlock(&clients_mutex);
adamc@667 208
adamc@667 209 return c;
adamc@667 210 }
adamc@667 211
adamc@685 212 static void use_client(client *c) {
adamc@685 213 pthread_mutex_lock(&c->lock);
adamc@685 214 ++c->refcount;
adamc@685 215 pthread_mutex_unlock(&c->lock);
adamc@689 216 pthread_mutex_lock(&c->pull_lock);
adamc@685 217 }
adamc@685 218
adamc@685 219 static void release_client(client *c) {
adamc@689 220 pthread_mutex_unlock(&c->pull_lock);
adamc@685 221 pthread_mutex_lock(&c->lock);
adamc@685 222 --c->refcount;
adamc@685 223 pthread_mutex_unlock(&c->lock);
adamc@685 224 }
adamc@685 225
adamc@856 226 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adam@1707 227 static pthread_t pruning_thread;
adam@1707 228 static int pruning_thread_initialized = 0;
adamc@667 229
adamc@682 230 static client *find_client(unsigned id) {
adamc@667 231 client *c;
adam@1708 232 int i_am_pruner = pruning_thread_initialized && pthread_equal(pruning_thread, pthread_self());
adam@1708 233
adam@1708 234 if (!i_am_pruner) pthread_mutex_lock(&clients_mutex);
adamc@667 235
adamc@667 236 if (id >= n_clients) {
adam@1708 237 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668 238 return NULL;
adamc@667 239 }
adamc@667 240
adamc@667 241 c = clients[id];
adamc@667 242
adam@1708 243 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668 244 return c;
adamc@668 245 }
adamc@668 246
adamc@856 247 static char *on_success = "HTTP/1.1 200 OK\r\n";
adam@1409 248 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856 249
adamc@856 250 void uw_set_on_success(char *s) {
adamc@856 251 on_success = s;
adamc@856 252 }
adamc@856 253
adam@1552 254 static void chastise(int (*send)(int sockfd, const void *buf, ssize_t len), int sock) {
adam@1552 255 send(sock, on_success, strlen(on_success));
adam@1552 256 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1552 257 send(sock, "R", 1);
adam@1552 258 close(sock);
adam@1552 259 }
adam@1552 260
adamc@863 261 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863 262 int (*send)(int sockfd, const void *buf, ssize_t len),
adamc@864 263 int (*close)(int fd),
adamc@864 264 void *logger_data, uw_logger log_error) {
adamc@682 265 client *c = find_client(id);
adamc@668 266
adamc@668 267 if (c == NULL) {
adam@1552 268 chastise(send, sock);
adamc@864 269 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667 270 return;
adamc@667 271 }
adamc@667 272
adamc@682 273 pthread_mutex_lock(&c->lock);
adamc@671 274
adamc@682 275 if (c->mode != USED) {
adamc@682 276 pthread_mutex_unlock(&c->lock);
adam@1552 277 chastise(send, sock);
adamc@864 278 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667 279 return;
adamc@667 280 }
adamc@667 281
adamc@682 282 if (pass != c->pass) {
adamc@682 283 pthread_mutex_unlock(&c->lock);
adam@1552 284 chastise(send, sock);
adamc@864 285 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682 286 return;
adamc@667 287 }
adamc@667 288
adamc@682 289 if (c->sock != -1) {
adamc@863 290 c->close(c->sock);
adamc@682 291 c->sock = -1;
adamc@682 292 }
adamc@667 293
adamc@682 294 c->last_contact = time(NULL);
adamc@682 295
adam@1369 296 if (uw_buffer_used(&c->msgs) > 0) {
adamc@863 297 send(sock, on_success, strlen(on_success));
adamc@863 298 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1369 299 send(sock, c->msgs.start, uw_buffer_used(&c->msgs));
adam@1369 300 uw_buffer_reset(&c->msgs);
adamc@667 301 close(sock);
adamc@667 302 }
adamc@863 303 else {
adamc@682 304 c->sock = sock;
adamc@863 305 c->send = send;
adamc@863 306 c->close = close;
adamc@863 307 }
adamc@667 308
adamc@682 309 pthread_mutex_unlock(&c->lock);
adamc@667 310 }
adamc@667 311
adamc@682 312 static void free_client(client *c) {
adamc@682 313 c->mode = UNUSED;
adamc@682 314 c->pass = -1;
adamc@667 315
adamc@682 316 c->next = clients_free;
adamc@682 317 clients_free = c;
adamc@667 318 }
adamc@667 319
adamc@682 320 static uw_Basis_channel new_channel(client *c) {
adamc@682 321 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668 322 return ch;
adamc@668 323 }
adamc@668 324
adam@1447 325 static void client_send(client *c, uw_buffer *msg, const char *script, int script_len) {
adamc@685 326 pthread_mutex_lock(&c->lock);
adamc@671 327
adamc@682 328 if (c->sock != -1) {
adamc@863 329 c->send(c->sock, on_success, strlen(on_success));
adamc@863 330 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1447 331 if (script_len > 0) {
adam@1447 332 c->send(c->sock, "E\n", 2);
adam@1447 333 c->send(c->sock, script, script_len);
adam@1447 334 c->send(c->sock, "\n", 1);
adam@1447 335 }
adam@1369 336 c->send(c->sock, msg->start, uw_buffer_used(msg));
adamc@863 337 c->close(c->sock);
adamc@682 338 c->sock = -1;
adam@1665 339 } else if (uw_buffer_append(&c->msgs, msg->start, uw_buffer_used(msg)))
adamc@1113 340 fprintf(stderr, "Client message buffer size exceeded");
adamc@671 341
adamc@685 342 pthread_mutex_unlock(&c->lock);
adamc@668 343 }
adamc@668 344
adamc@668 345
adamc@668 346 // Global entry points
adamc@668 347
adamc@1164 348 extern void uw_global_custom();
adamc@1104 349 extern void uw_init_crypto();
adamc@1104 350
adamc@668 351 void uw_global_init() {
adamc@668 352 srand(time(NULL) ^ getpid());
adamc@668 353
adamc@668 354 clients = malloc(0);
adamc@1104 355
adamc@1164 356 uw_global_custom();
adamc@1104 357 uw_init_crypto();
adamc@1094 358 }
adamc@1094 359
adamc@1094 360 void uw_app_init(uw_app *app) {
adamc@1094 361 app->client_init();
adamc@668 362 }
adamc@668 363
adam@1332 364 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114 365
adamc@668 366
adamc@667 367 // Single-request state
adamc@667 368
adamc@323 369 typedef struct regions {
adamc@323 370 struct regions *next;
adamc@323 371 } regions;
adamc@323 372
adamc@425 373 typedef struct {
adamc@425 374 void (*func)(void*);
adamc@425 375 void *arg;
adamc@425 376 } cleanup;
adamc@425 377
adamc@671 378 typedef struct {
adamc@682 379 unsigned client;
adam@1369 380 uw_buffer msgs;
adamc@682 381 } delta;
adamc@671 382
adamc@737 383 typedef enum {
adamc@759 384 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737 385 } input_kind;
adamc@737 386
adamc@756 387 typedef struct input {
adamc@737 388 input_kind kind;
adamc@737 389 union {
adamc@737 390 char *normal;
adamc@739 391 uw_Basis_file file;
adamc@756 392 struct {
adamc@759 393 struct input *fields, *parent;
adamc@756 394 } subform;
adamc@759 395 struct {
adamc@759 396 struct input *entries, *parent;
adamc@759 397 } subforms;
adamc@759 398 struct {
adamc@759 399 struct input *fields, *next, *parent;
adamc@759 400 } entry;
adamc@737 401 } data;
adamc@737 402 } input;
adamc@737 403
adamc@771 404 typedef struct {
adamc@771 405 void *data;
adam@1327 406 uw_callback commit, rollback;
adam@1327 407 uw_callback_with_retry free;
adamc@771 408 } transactional;
adamc@771 409
adamc@1061 410 typedef struct {
adamc@1061 411 char *name;
adamc@1061 412 void *data;
adamc@1061 413 void (*free)(void*);
adamc@1061 414 } global;
adamc@1061 415
adamc@311 416 struct uw_context {
adamc@1094 417 uw_app *app;
adam@1446 418 int id;
adamc@1094 419
adamc@854 420 char *(*get_header)(void *, const char *);
adamc@854 421 void *get_header_data;
adamc@457 422
adam@1799 423 char *(*get_env)(void *, const char *);
adam@1799 424 void *get_env_data;
adam@1799 425
adam@1369 426 uw_buffer outHeaders, page, heap, script;
adam@1451 427 int allowed_to_return_indirectly, returning_indirectly;
adamc@759 428 input *inputs, *subinputs, *cur_container;
adamc@1094 429 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167 430
adam@1446 431 unsigned long long source_count;
adamc@562 432
adamc@272 433 void *db;
adam@1931 434 int transaction_started;
adamc@272 435
adamc@167 436 jmp_buf jmp_buf;
adamc@167 437
adamc@323 438 regions *regions;
adamc@323 439
adamc@425 440 cleanup *cleanup, *cleanup_front, *cleanup_back;
adamc@425 441
adamc@1094 442 const char *script_header;
adamc@643 443
adam@1936 444 int needs_push, needs_sig, could_write_db;
adamc@693 445
adamc@682 446 size_t n_deltas, used_deltas;
adamc@682 447 delta *deltas;
adamc@671 448
adamc@682 449 client *client;
adamc@682 450
adamc@771 451 transactional *transactionals;
adamc@771 452 size_t n_transactionals, used_transactionals;
adamc@771 453
adamc@1061 454 global *globals;
adamc@1061 455 size_t n_globals;
adamc@1061 456
adamc@1066 457 char *current_url;
adamc@1066 458
adamc@1114 459 int deadline;
adamc@1114 460
adamc@1121 461 void *client_data;
adamc@1121 462
adam@1334 463 void *logger_data;
adam@1334 464 uw_logger log_debug;
adam@1334 465
adam@1386 466 int isPost, hasPostBody;
adam@1347 467 uw_Basis_postBody postBody;
adam@1370 468 uw_Basis_string queryString;
adam@1347 469
adam@1556 470 unsigned nextId;
adam@1556 471
adam@1782 472 int amInitializing;
adam@1782 473
adamc@167 474 char error_message[ERROR_BUF_LEN];
adam@1877 475
adam@1877 476 int usedSig, needsResig;
adamc@117 477 };
adamc@117 478
adamc@1113 479 size_t uw_headers_max = SIZE_MAX;
adamc@1113 480 size_t uw_page_max = SIZE_MAX;
adamc@1113 481 size_t uw_heap_max = SIZE_MAX;
adamc@1113 482 size_t uw_script_max = SIZE_MAX;
adamc@1113 483
adam@1446 484 uw_context uw_init(int id, void *logger_data, uw_logger log_debug) {
adamc@311 485 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136 486
adamc@1094 487 ctx->app = NULL;
adam@1446 488 ctx->id = id;
adamc@1094 489
adamc@854 490 ctx->get_header = NULL;
adamc@854 491 ctx->get_header_data = NULL;
adamc@457 492
adam@1799 493 ctx->get_env = NULL;
adam@1799 494 ctx->get_env_data = NULL;
adam@1799 495
adam@1413 496 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413 497 ctx->outHeaders.start[0] = 0;
adam@1413 498 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413 499 ctx->page.start[0] = 0;
adam@1451 500 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369 501 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369 502 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667 503 ctx->script.start[0] = 0;
adamc@136 504
adamc@1094 505 ctx->inputs = malloc(0);
adamc@759 506 ctx->cur_container = NULL;
adamc@756 507 ctx->subinputs = malloc(0);
adamc@1094 508 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144 509
adamc@272 510 ctx->db = NULL;
adam@1931 511 ctx->transaction_started = 0;
adamc@272 512
adamc@323 513 ctx->regions = NULL;
adamc@323 514
adamc@425 515 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425 516
adamc@643 517 ctx->script_header = "";
adamc@693 518 ctx->needs_push = 0;
adamc@736 519 ctx->needs_sig = 0;
adam@1936 520 ctx->could_write_db = 1;
adamc@1104 521
adamc@565 522 ctx->source_count = 0;
adamc@562 523
adamc@682 524 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671 525 ctx->deltas = malloc(0);
adamc@671 526
adamc@700 527 ctx->client = NULL;
adamc@700 528
adamc@700 529 ctx->error_message[0] = 0;
adamc@700 530
adamc@771 531 ctx->transactionals = malloc(0);
adamc@771 532 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771 533
adamc@1061 534 ctx->globals = malloc(0);
adamc@1061 535 ctx->n_globals = 0;
adamc@1061 536
adamc@1066 537 ctx->current_url = "";
adamc@1066 538
adamc@1114 539 ctx->deadline = INT_MAX;
adamc@1114 540
adamc@1121 541 ctx->client_data = uw_init_client_data();
adamc@1121 542
adam@1334 543 ctx->logger_data = logger_data;
adam@1334 544 ctx->log_debug = log_debug;
adam@1334 545
adam@1386 546 ctx->isPost = ctx->hasPostBody = 0;
adam@1347 547
adam@1370 548 ctx->queryString = NULL;
adam@1370 549
adam@1556 550 ctx->nextId = 0;
adam@1556 551
adam@1782 552 ctx->amInitializing = 0;
adam@1782 553
adam@1877 554 ctx->usedSig = 0;
adam@1877 555 ctx->needsResig = 0;
adam@1877 556
adamc@117 557 return ctx;
adamc@106 558 }
adamc@106 559
adamc@1113 560 size_t uw_inputs_max = SIZE_MAX;
adamc@1113 561
adamc@1121 562 uw_app *uw_get_app(uw_context ctx) {
adamc@1121 563 return ctx->app;
adamc@1121 564 }
adamc@1121 565
adamc@1113 566 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094 567 ctx->app = app;
adamc@1094 568
adamc@1105 569 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113 570 if (app->inputs_len > uw_inputs_max)
adamc@1113 571 return 1;
adamc@1113 572
adamc@1094 573 ctx->sz_inputs = app->inputs_len;
adamc@1094 574 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094 575 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094 576 }
adamc@1134 577
adamc@1134 578 return 0;
adamc@1094 579 }
adamc@1094 580
adamc@1121 581 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121 582 uw_copy_client_data(ctx->client_data, data);
adamc@1121 583 }
adamc@1121 584
adamc@311 585 void uw_set_db(uw_context ctx, void *db) {
adamc@272 586 ctx->db = db;
adamc@272 587 }
adamc@272 588
adamc@311 589 void *uw_get_db(uw_context ctx) {
adamc@272 590 return ctx->db;
adamc@272 591 }
adamc@272 592
adamc@311 593 void uw_free(uw_context ctx) {
adamc@671 594 size_t i;
adamc@671 595
adam@1369 596 uw_buffer_free(&ctx->outHeaders);
adam@1369 597 uw_buffer_free(&ctx->script);
adam@1369 598 uw_buffer_free(&ctx->page);
adam@1369 599 uw_buffer_free(&ctx->heap);
adamc@144 600 free(ctx->inputs);
adamc@756 601 free(ctx->subinputs);
adamc@425 602 free(ctx->cleanup);
adamc@771 603 free(ctx->transactionals);
adamc@1121 604 uw_free_client_data(ctx->client_data);
adamc@671 605
adamc@682 606 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369 607 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330 608 free(ctx->deltas);
adamc@671 609
adamc@1061 610 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089 611 if (ctx->globals[i].free)
adamc@1089 612 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330 613 free(ctx->globals);
adamc@1061 614
adamc@136 615 free(ctx);
adamc@136 616 }
adamc@136 617
adamc@562 618 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369 619 uw_buffer_reset(&ctx->outHeaders);
adam@1369 620 uw_buffer_reset(&ctx->script);
adamc@667 621 ctx->script.start[0] = 0;
adam@1369 622 uw_buffer_reset(&ctx->page);
adam@1451 623 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369 624 uw_buffer_reset(&ctx->heap);
adamc@323 625 ctx->regions = NULL;
adamc@425 626 ctx->cleanup_front = ctx->cleanup;
adamc@682 627 ctx->used_deltas = 0;
adamc@682 628 ctx->client = NULL;
adamc@759 629 ctx->cur_container = NULL;
adamc@771 630 ctx->used_transactionals = 0;
adamc@1117 631 ctx->script_header = "";
adam@1370 632 ctx->queryString = NULL;
adam@1556 633 ctx->nextId = 0;
adam@1782 634 ctx->amInitializing = 0;
adam@1877 635 ctx->usedSig = 0;
adam@1877 636 ctx->needsResig = 0;
adam@1931 637 ctx->transaction_started = 0;
adamc@167 638 }
adamc@167 639
adamc@562 640 void uw_reset_keep_request(uw_context ctx) {
adamc@562 641 uw_reset_keep_error_message(ctx);
adamc@562 642 ctx->error_message[0] = 0;
adamc@167 643 }
adamc@167 644
adamc@311 645 void uw_reset(uw_context ctx) {
adamc@311 646 uw_reset_keep_request(ctx);
adamc@1105 647 if (ctx->app)
adamc@1105 648 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756 649 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461 650 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adamc@144 651 }
adamc@144 652
adamc@311 653 failure_kind uw_begin_init(uw_context ctx) {
adamc@272 654 int r = setjmp(ctx->jmp_buf);
adamc@272 655
adamc@1105 656 if (r == 0 && ctx->app)
adamc@1094 657 ctx->app->db_init(ctx);
adamc@272 658
adamc@272 659 return r;
adamc@272 660 }
adamc@272 661
adamc@1118 662 void uw_close(uw_context ctx) {
adamc@1118 663 ctx->app->db_close(ctx);
adamc@1118 664 }
adamc@1118 665
adam@1446 666 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446 667 return ctx->get_header(ctx->get_header_data, h);
adam@1446 668 }
adam@1446 669
adamc@854 670 void uw_set_headers(uw_context ctx, char *(*get_header)(void *, const char *), void *get_header_data) {
adamc@854 671 ctx->get_header = get_header;
adamc@854 672 ctx->get_header_data = get_header_data;
adamc@742 673 }
adamc@742 674
adam@1799 675 void uw_set_env(uw_context ctx, char *(*get_env)(void *, const char *), void *get_env_data) {
adam@1799 676 ctx->get_env = get_env;
adam@1799 677 ctx->get_env_data = get_env_data;
adam@1799 678 }
adam@1799 679
adamc@801 680 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801 681 va_list ap;
adamc@801 682 va_start(ap, fmt);
adamc@801 683
adamc@801 684 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801 685 }
adamc@801 686
adamc@1131 687 int uw_has_error(uw_context ctx) {
adamc@1131 688 return ctx->error_message[0] != 0;
adamc@1131 689 }
adamc@1131 690
adamc@311 691 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425 692 cleanup *cl;
adamc@425 693
adamc@167 694 va_list ap;
adamc@167 695 va_start(ap, fmt);
adamc@167 696
adamc@167 697 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167 698
adamc@425 699 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425 700 cl->func(cl->arg);
adamc@425 701
adamc@425 702 ctx->cleanup_front = ctx->cleanup;
adamc@425 703
adamc@190 704 longjmp(ctx->jmp_buf, fk);
adamc@167 705 }
adamc@167 706
adamc@1113 707 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113 708
adamc@425 709 void uw_push_cleanup(uw_context ctx, void (*func)(void *), void *arg) {
adamc@425 710 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425 711 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425 712 if (len == 0)
adamc@425 713 newLen = 1;
adamc@425 714 else
adamc@428 715 newLen = len * 2;
adamc@1113 716
adamc@1134 717 if (newLen > uw_cleanup_max) {
adamc@1113 718 if (len+1 <= uw_cleanup_max)
adamc@1113 719 newLen = uw_cleanup_max;
adamc@1113 720 else
adamc@1113 721 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134 722 }
adamc@1113 723
adamc@470 724 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425 725 ctx->cleanup_front = ctx->cleanup + len;
adamc@425 726 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425 727 }
adamc@425 728
adamc@425 729 ctx->cleanup_front->func = func;
adamc@425 730 ctx->cleanup_front->arg = arg;
adamc@425 731 ++ctx->cleanup_front;
adamc@425 732 }
adamc@425 733
adam@1444 734 char *uw_Basis_htmlifyString(uw_context, const char *);
adam@1444 735
adamc@682 736 void uw_login(uw_context ctx) {
adamc@693 737 if (ctx->needs_push) {
adamc@682 738 char *id_s, *pass_s;
adamc@682 739
adamc@682 740 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682 741 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682 742 unsigned id = atoi(id_s);
adamc@682 743 int pass = atoi(pass_s);
adamc@682 744 client *c = find_client(id);
adamc@682 745
adamc@682 746 if (c == NULL)
adam@1444 747 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", uw_Basis_htmlifyString(ctx, id_s), uw_Basis_htmlifyString(ctx, pass_s));
adamc@682 748 else {
adamc@685 749 use_client(c);
adamc@682 750 ctx->client = c;
adamc@682 751
adamc@682 752 if (c->mode != USED)
adamc@682 753 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682 754 if (c->pass != pass)
adamc@682 755 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682 756 }
adamc@682 757 } else {
adamc@682 758 client *c = new_client();
adamc@1113 759
adamc@1113 760 if (c == NULL)
adamc@1113 761 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adamc@1113 762
adamc@685 763 use_client(c);
adamc@1121 764 uw_copy_client_data(c->data, ctx->client_data);
adamc@682 765 ctx->client = c;
adamc@864 766 }
adamc@682 767 }
adamc@682 768 }
adamc@682 769
adamc@671 770 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671 771 int r = setjmp(ctx->jmp_buf);
adamc@671 772
adam@1931 773 if (r == 0)
adam@1931 774 ctx->app->handle(ctx, path);
adam@1931 775
adam@1931 776 return r;
adam@1931 777 }
adam@1931 778
adam@1931 779 void uw_ensure_transaction(uw_context ctx) {
adam@1931 780 if (!ctx->transaction_started) {
adam@1936 781 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adamc@671 782 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1931 783 ctx->transaction_started = 1;
adamc@671 784 }
adamc@671 785 }
adamc@671 786
adamc@772 787 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682 788 if (ctx->client == NULL)
adamc@682 789 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682 790
adamc@682 791 return ctx->client->id;
adamc@682 792 }
adamc@682 793
adamc@425 794 void uw_pop_cleanup(uw_context ctx) {
adamc@425 795 if (ctx->cleanup_front == ctx->cleanup)
adamc@425 796 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425 797
adamc@425 798 --ctx->cleanup_front;
adamc@425 799 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425 800 }
adamc@425 801
adamc@311 802 char *uw_error_message(uw_context ctx) {
adamc@167 803 return ctx->error_message;
adamc@167 804 }
adamc@167 805
adamc@1115 806 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115 807 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115 808 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115 809 }
adamc@1115 810
adamc@759 811 static input *INP(uw_context ctx) {
adamc@759 812 if (ctx->cur_container == NULL)
adamc@759 813 return ctx->inputs;
adamc@759 814 else if (ctx->cur_container->kind == SUBFORM)
adamc@759 815 return ctx->cur_container->data.subform.fields;
adamc@759 816 else if (ctx->cur_container->kind == ENTRY)
adamc@759 817 return ctx->cur_container->data.entry.fields;
adamc@759 818 else
adamc@760 819 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759 820 }
adamc@759 821
adamc@760 822 static void adjust_pointer(input **ptr, input *old_start, input *new_start, size_t len) {
adamc@760 823 if (*ptr != NULL && *ptr >= old_start && *ptr < old_start + len)
adamc@760 824 *ptr += new_start - old_start;
adamc@760 825 }
adamc@760 826
adamc@760 827 static void adjust_input(input *x, input *old_start, input *new_start, size_t len) {
adamc@759 828 switch (x->kind) {
adamc@759 829 case SUBFORM:
adamc@760 830 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760 831 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759 832 break;
adamc@759 833 case SUBFORMS:
adamc@760 834 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760 835 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759 836 break;
adamc@759 837 case ENTRY:
adamc@760 838 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760 839 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760 840 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134 841 break;
adamc@1134 842 default:
adamc@1134 843 break;
adamc@759 844 }
adamc@759 845 }
adamc@759 846
adamc@1113 847 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113 848
adamc@759 849 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759 850 size_t i;
adamc@759 851 input *r;
adamc@759 852
adamc@759 853 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113 854 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113 855 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113 856
adamc@759 857 input *new_subinputs = realloc(ctx->subinputs, sizeof(input) * (ctx->used_subinputs + len));
adamc@759 858
adamc@760 859 if (ctx->subinputs != new_subinputs) {
adamc@760 860 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760 861 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094 862 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760 863 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760 864
adamc@760 865 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760 866
adamc@760 867 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760 868 ctx->subinputs = new_subinputs;
adamc@760 869 }
adamc@759 870 }
adamc@759 871
adamc@759 872 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759 873
adamc@759 874 for (i = 0; i < len; ++i)
adam@1474 875 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759 876
adamc@759 877 return r;
adamc@759 878 }
adamc@756 879
adamc@801 880 int uw_set_input(uw_context ctx, const char *name, char *value) {
adamc@1050 881 //printf("Input name %s\n", name);
adamc@1038 882
adamc@756 883 if (!strcasecmp(name, ".b")) {
adamc@1094 884 int n = ctx->app->input_num(value);
adamc@756 885 input *inps;
adamc@756 886
adamc@801 887 if (n < 0) {
adam@1444 888 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801 889 return -1;
adamc@801 890 }
adamc@801 891
adamc@1094 892 if (n >= ctx->app->inputs_len) {
adam@1444 893 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801 894 return -1;
adamc@801 895 }
adamc@756 896
adamc@1094 897 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759 898
adamc@759 899 INP(ctx)[n].kind = SUBFORM;
adamc@759 900 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759 901 INP(ctx)[n].data.subform.fields = inps;
adamc@759 902 ctx->cur_container = &INP(ctx)[n];
adamc@756 903 } else if (!strcasecmp(name, ".e")) {
adamc@756 904 input *tmp;
adamc@756 905
adamc@801 906 if (ctx->cur_container == NULL) {
adamc@801 907 uw_set_error(ctx, "Unmatched subform closer");
adamc@801 908 return -1;
adamc@801 909 }
adamc@756 910
adamc@759 911 tmp = ctx->cur_container;
adamc@759 912 switch (tmp->kind) {
adamc@759 913 case SUBFORM:
adamc@759 914 ctx->cur_container = tmp->data.subform.parent;
adamc@759 915 tmp->data.subform.parent = NULL;
adamc@759 916 break;
adamc@759 917 case SUBFORMS:
adamc@759 918 ctx->cur_container = tmp->data.subforms.parent;
adamc@759 919 tmp->data.subforms.parent = NULL;
adamc@759 920 break;
adamc@759 921 case ENTRY:
adamc@759 922 ctx->cur_container = tmp->data.entry.parent;
adamc@759 923 break;
adamc@759 924 default:
adamc@801 925 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801 926 return -1;
adamc@759 927 }
adamc@759 928 } else if (!strcasecmp(name, ".s")) {
adamc@1094 929 int n = ctx->app->input_num(value);
adamc@759 930
adamc@801 931 if (n < 0) {
adam@1444 932 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801 933 return -1;
adamc@801 934 }
adamc@801 935
adamc@1094 936 if (n >= ctx->app->inputs_len) {
adam@1444 937 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801 938 return -1;
adamc@801 939 }
adamc@759 940
adamc@759 941 INP(ctx)[n].kind = SUBFORMS;
adamc@759 942 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759 943 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759 944 ctx->cur_container = &INP(ctx)[n];
adamc@759 945 } else if (!strcasecmp(name, ".i")) {
adamc@759 946 input *inps;
adamc@759 947
adamc@801 948 if (!ctx->cur_container) {
adamc@801 949 uw_set_error(ctx, "New entry without container");
adamc@801 950 return -1;
adamc@801 951 }
adamc@801 952
adamc@801 953 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801 954 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801 955 return -1;
adamc@801 956 }
adamc@759 957
adamc@1094 958 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759 959
adamc@759 960 inps->kind = ENTRY;
adamc@759 961 inps->data.entry.parent = ctx->cur_container;
adamc@759 962 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759 963 ctx->cur_container->data.subforms.entries = inps;
adamc@759 964
adamc@759 965 inps->data.entry.fields = inps+1;
adamc@759 966 ctx->cur_container = inps;
adamc@756 967 } else {
adamc@1094 968 int n = ctx->app->input_num(name);
adamc@756 969
adam@1384 970 if (n < 0)
adam@1384 971 return 0;
adamc@801 972
adamc@1094 973 if (n >= ctx->app->inputs_len) {
adam@1444 974 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801 975 return -1;
adamc@801 976 }
adamc@756 977
adamc@756 978 INP(ctx)[n].kind = NORMAL;
adamc@756 979 INP(ctx)[n].data.normal = value;
adamc@756 980 }
adamc@801 981
adamc@801 982 return 0;
adamc@144 983 }
adamc@144 984
adamc@311 985 char *uw_get_input(uw_context ctx, int n) {
adamc@169 986 if (n < 0)
adamc@311 987 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094 988 if (n >= ctx->app->inputs_len)
adamc@311 989 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737 990
adamc@756 991 switch (INP(ctx)[n].kind) {
adamc@737 992 case UNSET:
adamc@737 993 return NULL;
adamc@739 994 case FIL:
adamc@739 995 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756 996 case SUBFORM:
adamc@756 997 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759 998 case SUBFORMS:
adamc@759 999 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759 1000 case ENTRY:
adamc@759 1001 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737 1002 case NORMAL:
adamc@756 1003 return INP(ctx)[n].data.normal;
adamc@737 1004 default:
adamc@737 1005 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 1006 }
adamc@138 1007 }
adamc@138 1008
adamc@311 1009 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190 1010 if (n < 0)
adamc@311 1011 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094 1012 if (n >= ctx->app->inputs_len)
adamc@311 1013 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737 1014
adamc@756 1015 switch (INP(ctx)[n].kind) {
adamc@737 1016 case UNSET:
adamc@737 1017 return "";
adamc@739 1018 case FIL:
adamc@739 1019 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756 1020 case SUBFORM:
adamc@756 1021 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759 1022 case SUBFORMS:
adamc@759 1023 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759 1024 case ENTRY:
adamc@759 1025 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737 1026 case NORMAL:
adamc@756 1027 return INP(ctx)[n].data.normal;
adamc@737 1028 default:
adamc@737 1029 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 1030 }
adamc@737 1031 }
adamc@737 1032
adamc@801 1033 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094 1034 int n = ctx->app->input_num(name);
adamc@737 1035
adamc@801 1036 if (n < 0) {
adam@1444 1037 uw_set_error(ctx, "Bad file input name %s", uw_Basis_htmlifyString(ctx, name));
adamc@801 1038 return -1;
adamc@801 1039 }
adamc@801 1040
adamc@1094 1041 if (n >= ctx->app->inputs_len) {
adam@1444 1042 uw_set_error(ctx, "For file input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801 1043 return -1;
adamc@801 1044 }
adamc@737 1045
adamc@739 1046 ctx->inputs[n].kind = FIL;
adamc@739 1047 ctx->inputs[n].data.file = f;
adamc@801 1048
adamc@801 1049 return 0;
adamc@737 1050 }
adamc@737 1051
adamc@739 1052 void *uw_malloc(uw_context ctx, size_t len);
adamc@739 1053
adamc@739 1054 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737 1055 if (n < 0)
adamc@737 1056 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094 1057 if (n >= ctx->app->inputs_len)
adamc@737 1058 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737 1059
adamc@756 1060 switch (INP(ctx)[n].kind) {
adamc@737 1061 case UNSET:
adamc@737 1062 {
adamc@739 1063 char *data = uw_malloc(ctx, 0);
adamc@740 1064 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739 1065 return f;
adamc@737 1066 }
adamc@739 1067 case FIL:
adamc@756 1068 return INP(ctx)[n].data.file;
adamc@737 1069 case NORMAL:
adamc@737 1070 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756 1071 case SUBFORM:
adamc@756 1072 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759 1073 case SUBFORMS:
adamc@759 1074 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759 1075 case ENTRY:
adamc@759 1076 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737 1077 default:
adamc@737 1078 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 1079 }
adamc@190 1080 }
adamc@190 1081
adamc@756 1082 void uw_enter_subform(uw_context ctx, int n) {
adamc@756 1083 if (n < 0)
adamc@756 1084 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094 1085 if (n >= ctx->app->inputs_len)
adamc@756 1086 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756 1087
adamc@756 1088 switch (INP(ctx)[n].kind) {
adamc@756 1089 case UNSET:
adamc@756 1090 uw_error(ctx, FATAL, "Missing subform");
adamc@756 1091 case FIL:
adamc@756 1092 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756 1093 case NORMAL:
adamc@756 1094 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759 1095 case SUBFORMS:
adamc@759 1096 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759 1097 case ENTRY:
adamc@759 1098 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756 1099 case SUBFORM:
adamc@759 1100 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760 1101 ctx->cur_container = &INP(ctx)[n];
adamc@756 1102 return;
adamc@756 1103 default:
adamc@756 1104 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756 1105 }
adamc@756 1106 }
adamc@756 1107
adamc@756 1108 void uw_leave_subform(uw_context ctx) {
adamc@756 1109 input *tmp;
adamc@756 1110
adamc@759 1111 if (ctx->cur_container == NULL)
adamc@756 1112 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756 1113
adamc@759 1114 tmp = ctx->cur_container;
adamc@759 1115 ctx->cur_container = tmp->data.subform.parent;
adamc@759 1116 tmp->data.subform.parent = NULL;
adamc@759 1117 }
adamc@759 1118
adamc@759 1119 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759 1120 input *inps;
adamc@759 1121
adamc@759 1122 if (n < 0)
adamc@759 1123 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094 1124 if (n >= ctx->app->inputs_len)
adamc@759 1125 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759 1126
adamc@759 1127 switch (INP(ctx)[n].kind) {
adamc@759 1128 case UNSET:
adamc@759 1129 uw_error(ctx, FATAL, "Missing subforms");
adamc@759 1130 case FIL:
adamc@759 1131 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759 1132 case NORMAL:
adamc@759 1133 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759 1134 case SUBFORM:
adamc@759 1135 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759 1136 case ENTRY:
adamc@759 1137 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759 1138 case SUBFORMS:
adamc@759 1139 inps = INP(ctx)[n].data.subforms.entries;
adamc@759 1140 if (inps) {
adamc@759 1141 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759 1142 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759 1143 return 1;
adamc@759 1144 } else
adamc@759 1145 return 0;
adamc@759 1146 default:
adamc@759 1147 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759 1148 }
adamc@759 1149 }
adamc@759 1150
adamc@759 1151 int uw_next_entry(uw_context ctx) {
adamc@759 1152 if (ctx->cur_container == NULL)
adamc@759 1153 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759 1154
adamc@759 1155 switch (ctx->cur_container->kind) {
adamc@759 1156 case UNSET:
adamc@759 1157 uw_error(ctx, FATAL, "Missing entry");
adamc@759 1158 case FIL:
adamc@759 1159 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759 1160 case NORMAL:
adamc@759 1161 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759 1162 case SUBFORM:
adamc@759 1163 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759 1164 case SUBFORMS:
adamc@759 1165 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759 1166 case ENTRY:
adamc@759 1167 if (ctx->cur_container->data.entry.next) {
adamc@759 1168 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759 1169 return 1;
adamc@759 1170 } else {
adamc@759 1171 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759 1172 return 0;
adamc@759 1173 }
adamc@759 1174 default:
adamc@759 1175 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759 1176 }
adamc@756 1177 }
adamc@756 1178
adamc@643 1179 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643 1180 ctx->script_header = s;
adamc@643 1181 }
adamc@643 1182
adamc@1094 1183 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094 1184 return ctx->app->url_prefix;
adamc@667 1185 }
adamc@667 1186
adamc@693 1187 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693 1188 ctx->needs_push = n;
adamc@693 1189 }
adamc@693 1190
adamc@736 1191 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736 1192 ctx->needs_sig = n;
adamc@736 1193 }
adamc@736 1194
adam@1936 1195 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936 1196 ctx->could_write_db = n;
adam@1936 1197 }
adam@1936 1198
adamc@667 1199
adam@1369 1200 static void uw_buffer_check_ctx(uw_context ctx, const char *kind, uw_buffer *b, size_t extra, const char *desc) {
adamc@666 1201 if (b->back - b->front < extra) {
adamc@666 1202 size_t desired = b->front - b->start + extra, next;
adamc@136 1203 char *new_heap;
adamc@136 1204
adamc@666 1205 next = b->back - b->start;
adamc@317 1206 if (next == 0)
adamc@317 1207 next = 1;
adamc@317 1208 for (; next < desired; next *= 2);
adamc@136 1209
adamc@1134 1210 if (next > b->max) {
adamc@1113 1211 if (desired <= b->max)
adamc@1113 1212 next = desired;
adamc@1113 1213 else
adamc@1113 1214 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134 1215 }
adamc@1113 1216
adamc@666 1217 new_heap = realloc(b->start, next);
adamc@666 1218 b->front = new_heap + (b->front - b->start);
adamc@666 1219 b->back = new_heap + next;
adamc@136 1220
adamc@667 1221 if (new_heap != b->start) {
adamc@666 1222 b->start = new_heap;
adam@1389 1223 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136 1224 }
adamc@136 1225
adamc@666 1226 b->start = new_heap;
adamc@136 1227 }
adamc@136 1228 }
adamc@136 1229
adamc@832 1230 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369 1231 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666 1232 }
adamc@666 1233
adamc@832 1234 char *uw_heap_front(uw_context ctx) {
adamc@832 1235 return ctx->heap.front;
adamc@832 1236 }
adamc@832 1237
adamc@832 1238 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832 1239 ctx->heap.front = fr;
adamc@832 1240 }
adamc@832 1241
adam@1782 1242 void uw_begin_initializing(uw_context ctx) {
adam@1782 1243 ctx->amInitializing = 1;
adam@1782 1244 }
adam@1782 1245
adam@1782 1246 void uw_end_initializing(uw_context ctx) {
adam@1782 1247 ctx->amInitializing = 0;
adam@1782 1248 }
adam@1782 1249
adamc@311 1250 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136 1251 void *result;
adamc@136 1252
adam@1782 1253 if (ctx->amInitializing) {
adam@1782 1254 result = malloc(len);
adam@1782 1255
adam@1782 1256 if (result)
adam@1782 1257 return result;
adam@1782 1258 else
adam@1782 1259 uw_error(ctx, FATAL, "uw_malloc: malloc() returns 0");
adam@1782 1260 } else {
adam@1782 1261 uw_check_heap(ctx, len);
adam@1782 1262
adam@1782 1263 result = ctx->heap.front;
adam@1782 1264 ctx->heap.front += len;
adam@1782 1265 return result;
adam@1782 1266 }
adamc@117 1267 }
adamc@117 1268
adamc@323 1269 void uw_begin_region(uw_context ctx) {
adamc@666 1270 regions *r = (regions *) ctx->heap.front;
adamc@323 1271
adamc@323 1272 uw_check_heap(ctx, sizeof(regions));
adamc@323 1273
adamc@666 1274 ctx->heap.front += sizeof(regions);
adamc@323 1275
adamc@323 1276 r->next = ctx->regions;
adamc@323 1277 ctx->regions = r;
adamc@323 1278 }
adamc@323 1279
adamc@323 1280 void uw_end_region(uw_context ctx) {
adamc@323 1281 regions *r = ctx->regions;
adamc@323 1282
adamc@323 1283 if (r == NULL)
adamc@323 1284 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323 1285
adamc@666 1286 ctx->heap.front = (char *) r;
adamc@323 1287 ctx->regions = r->next;
adamc@323 1288 }
adamc@323 1289
adamc@324 1290 void uw_memstats(uw_context ctx) {
adam@1369 1291 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369 1292 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369 1293 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369 1294 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324 1295 }
adamc@324 1296
adam@1915 1297 int uw_pagelen(uw_context ctx) {
adam@1915 1298 return ctx->page.front - ctx->page.start;
adam@1915 1299 }
adam@1915 1300
adamc@311 1301 int uw_send(uw_context ctx, int sock) {
adamc@666 1302 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462 1303
adamc@462 1304 if (n < 0)
adamc@462 1305 return n;
adamc@462 1306
adamc@462 1307 n = uw_really_send(sock, "\r\n", 2);
adamc@462 1308
adamc@462 1309 if (n < 0)
adamc@462 1310 return n;
adamc@462 1311
adamc@666 1312 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462 1313 }
adamc@462 1314
adamc@856 1315 int uw_print(uw_context ctx, int fd) {
adamc@856 1316 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856 1317
adamc@856 1318 if (n < 0)
adamc@856 1319 return n;
adamc@856 1320
adamc@856 1321 n = uw_really_write(fd, "\r\n", 2);
adamc@856 1322
adamc@856 1323 if (n < 0)
adamc@856 1324 return n;
adamc@856 1325
adamc@856 1326 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856 1327 }
adamc@856 1328
adamc@860 1329 int uw_output(uw_context ctx, int (*output)(void *data, char *buf, size_t len), void *data) {
adamc@860 1330 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860 1331
adamc@860 1332 if (n < 0)
adamc@860 1333 return n;
adamc@860 1334
adamc@860 1335 n = output(data, "\r\n", 2);
adamc@860 1336
adamc@860 1337 if (n < 0)
adamc@860 1338 return n;
adamc@860 1339
adamc@860 1340 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860 1341 }
adamc@860 1342
adamc@462 1343 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369 1344 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462 1345 }
adamc@462 1346
adamc@462 1347 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462 1348 int len = strlen(s);
adamc@462 1349
adamc@462 1350 uw_check_headers(ctx, len + 1);
adamc@666 1351 strcpy(ctx->outHeaders.front, s);
adamc@666 1352 ctx->outHeaders.front += len;
adamc@562 1353 }
adamc@562 1354
adam@1934 1355 int uw_has_contentLength(uw_context ctx) {
adam@1934 1356 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934 1357 }
adam@1934 1358
adamc@1110 1359 void uw_clear_headers(uw_context ctx) {
adam@1369 1360 uw_buffer_reset(&ctx->outHeaders);
adamc@1110 1361 }
adamc@1110 1362
adam@1932 1363 void uw_Basis_clear_page(uw_context ctx) {
adam@1932 1364 uw_buffer_reset(&ctx->page);
adam@1932 1365 }
adam@1932 1366
adamc@562 1367 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369 1368 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562 1369 }
adamc@562 1370
adamc@562 1371 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562 1372 int len = strlen(s);
adamc@562 1373
adamc@562 1374 uw_check_script(ctx, len + 1);
adamc@666 1375 strcpy(ctx->script.front, s);
adamc@666 1376 ctx->script.front += len;
adamc@562 1377 }
adamc@562 1378
adam@1446 1379 const char *uw_get_real_script(uw_context ctx) {
adam@1671 1380 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671 1381 uw_write_script(ctx, "sig=\"");
adam@1671 1382 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671 1383 uw_write_script(ctx, "\";");
adam@1671 1384 }
adam@1671 1385
adam@1446 1386 return ctx->script.start;
adam@1446 1387 }
adam@1446 1388
adamc@695 1389 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695 1390 if (s[0] == 0)
adamc@695 1391 return "";
adamc@695 1392 else {
adamc@695 1393 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695 1394 sprintf(r, " onload='%s'", s);
adamc@695 1395 return r;
adamc@695 1396 }
adamc@695 1397 }
adamc@695 1398
adamc@1042 1399 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042 1400 if (ctx->script_header[0] == 0)
adamc@1042 1401 return "";
adamc@1042 1402 else {
vshabanoff@1763 1403 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763 1404 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042 1405 return r;
adamc@1042 1406 }
adamc@1042 1407 }
adamc@1042 1408
adamc@694 1409 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736 1410 if (ctx->client == NULL) {
adamc@736 1411 if (ctx->needs_sig) {
adamc@1094 1412 char *sig = ctx->app->cookie_sig(ctx);
adamc@736 1413 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736 1414 sprintf(r, "sig=\"%s\";", sig);
adamc@736 1415 return r;
adamc@736 1416 }
adamc@736 1417 else
adamc@736 1418 return "";
adamc@736 1419 } else {
adamc@1094 1420 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094 1421 char *r = uw_malloc(ctx, 59 + 3 * INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736 1422 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552 1423 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552 1424 (ctx->isPost ? "true" : "false"),
adamc@682 1425 ctx->client->id,
adamc@682 1426 ctx->client->pass,
adamc@1094 1427 ctx->app->url_prefix,
adamc@1094 1428 ctx->app->timeout,
adamc@736 1429 ctx->needs_sig ? "sig=\"" : "",
adamc@736 1430 sig,
adamc@736 1431 ctx->needs_sig ? "\";" : "");
adamc@679 1432 return r;
adamc@668 1433 }
adamc@667 1434 }
adamc@667 1435
adamc@574 1436 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574 1437 char *r, *s2;
adamc@574 1438
adam@1446 1439 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574 1440
adamc@666 1441 r = s2 = ctx->heap.front;
adamc@574 1442 *s2++ = '"';
adamc@574 1443
adamc@574 1444 for (; *s; s++) {
adam@1286 1445 unsigned char c = *s;
adamc@574 1446
adamc@574 1447 switch (c) {
adamc@574 1448 case '"':
adamc@574 1449 strcpy(s2, "\\\"");
adamc@574 1450 s2 += 2;
adamc@574 1451 break;
adamc@1027 1452 case '\'':
adamc@1027 1453 strcpy(s2, "\\047");
adamc@1027 1454 s2 += 4;
adamc@1027 1455 break;
adamc@574 1456 case '\\':
adamc@574 1457 strcpy(s2, "\\\\");
adamc@574 1458 s2 += 2;
adamc@574 1459 break;
adam@1457 1460 case '<':
adam@1457 1461 strcpy(s2, "\\074");
adam@1457 1462 s2 += 4;
adam@1457 1463 break;
adamc@574 1464 default:
adam@1286 1465 if (isprint((int)c) || c >= 128)
adamc@574 1466 *s2++ = c;
adamc@574 1467 else {
adam@1429 1468 sprintf(s2, "\\%03o", c);
adamc@574 1469 s2 += 4;
adamc@574 1470 }
adamc@574 1471 }
adamc@574 1472 }
adamc@574 1473
adamc@574 1474 strcpy(s2, "\"");
adamc@910 1475 ctx->heap.front = s2 + 2;
adamc@574 1476 return r;
adamc@574 1477 }
adamc@574 1478
adam@1286 1479 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286 1480 unsigned char c = c1;
adamc@1025 1481 char *r, *s2;
adamc@1025 1482
adam@1446 1483 uw_check_heap(ctx, 7);
adamc@1025 1484
adamc@1025 1485 r = s2 = ctx->heap.front;
adamc@1025 1486 *s2++ = '"';
adamc@1025 1487
adamc@1025 1488 switch (c) {
adamc@1025 1489 case '"':
adamc@1025 1490 strcpy(s2, "\\\"");
adamc@1025 1491 s2 += 2;
adamc@1025 1492 break;
adamc@1027 1493 case '\'':
adamc@1027 1494 strcpy(s2, "\\047");
adamc@1027 1495 s2 += 4;
adamc@1027 1496 break;
adamc@1025 1497 case '\\':
adamc@1025 1498 strcpy(s2, "\\\\");
adamc@1025 1499 s2 += 2;
adamc@1025 1500 break;
adam@1457 1501 case '<':
adam@1457 1502 strcpy(s2, "\\074");
adam@1457 1503 s2 += 4;
adam@1457 1504 break;
adamc@1025 1505 default:
adam@1286 1506 if (isprint((int)c) || c >= 128)
adamc@1025 1507 *s2++ = c;
adamc@1025 1508 else {
adam@1429 1509 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025 1510 s2 += 4;
adamc@1025 1511 }
adamc@1025 1512 }
adamc@1025 1513
adamc@1025 1514 strcpy(s2, "\"");
adamc@1025 1515 ctx->heap.front = s2 + 2;
adamc@1025 1516 return r;
adamc@1025 1517 }
adamc@1025 1518
adamc@574 1519 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574 1520 char *r, *s2;
adamc@574 1521
adam@1446 1522 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574 1523
adamc@666 1524 r = s2 = ctx->script.front;
adamc@574 1525 *s2++ = '"';
adamc@574 1526
adamc@574 1527 for (; *s; s++) {
adam@1286 1528 unsigned char c = *s;
adamc@574 1529
adamc@574 1530 switch (c) {
adamc@577 1531 case '\'':
adamc@1027 1532 strcpy(s2, "\\");
adamc@574 1533 s2 += 2;
adamc@574 1534 break;
adamc@574 1535 case '\\':
adamc@574 1536 strcpy(s2, "\\\\");
adamc@574 1537 s2 += 2;
adamc@574 1538 break;
adam@1457 1539 case '<':
adam@1457 1540 strcpy(s2, "\\074");
adam@1457 1541 s2 += 4;
adam@1457 1542 break;
adamc@574 1543 default:
adam@1286 1544 if (isprint((int)c) || c >= 128)
adamc@574 1545 *s2++ = c;
adamc@574 1546 else {
adam@1429 1547 sprintf(s2, "\\%03o", c);
adamc@574 1548 s2 += 4;
adamc@574 1549 }
adamc@574 1550 }
adamc@574 1551 }
adamc@574 1552
adamc@574 1553 strcpy(s2, "\"");
adamc@666 1554 ctx->script.front = s2 + 1;
adamc@574 1555 return r;
adamc@574 1556 }
adamc@574 1557
adamc@682 1558 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1559 if (ctx->client == NULL || chn.cli != ctx->client->id)
adamc@682 1560 return "null";
adamc@682 1561 else {
adamc@682 1562 int len;
adamc@682 1563 char *r;
adamc@682 1564
adamc@682 1565 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1566 r = ctx->heap.front;
adamc@682 1567 sprintf(r, "%u%n", chn.chn, &len);
adamc@682 1568 ctx->heap.front += len+1;
adamc@682 1569 return r;
adamc@682 1570 }
adamc@682 1571 }
adamc@682 1572
adam@1446 1573 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577 1574 int len;
adamc@577 1575 size_t s_len = strlen(s);
adamc@562 1576
adam@1446 1577 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446 1578 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666 1579 ctx->script.front += len;
adamc@666 1580 strcpy(ctx->script.front, s);
adamc@666 1581 ctx->script.front += s_len;
adamc@970 1582 strcpy(ctx->script.front, "));");
adamc@972 1583 ctx->script.front += 3;
adamc@562 1584
adam@1446 1585 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446 1586 return r;
adam@1446 1587 }
adam@1446 1588
adam@1446 1589 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577 1590 int len;
adamc@577 1591 size_t s_len = strlen(s);
adamc@577 1592
adam@1446 1593 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446 1594 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666 1595 ctx->script.front += len;
adamc@666 1596 strcpy(ctx->script.front, s);
adamc@666 1597 ctx->script.front += s_len;
adamc@970 1598 strcpy(ctx->script.front, "));");
adamc@972 1599 ctx->script.front += 3;
adamc@577 1600
adamc@577 1601 return uw_unit_v;
adamc@577 1602 }
adamc@577 1603
adamc@311 1604 static void uw_check(uw_context ctx, size_t extra) {
adam@1369 1605 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117 1606 }
adamc@117 1607
adamc@311 1608 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666 1609 *(ctx->page.front)++ = c;
adam@1413 1610 *ctx->page.front = 0;
adamc@117 1611 }
adamc@117 1612
adamc@311 1613 void uw_writec(uw_context ctx, char c) {
adam@1413 1614 uw_check(ctx, 2);
adamc@311 1615 uw_writec_unsafe(ctx, c);
adamc@117 1616 }
adamc@117 1617
adamc@311 1618 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117 1619 int len = strlen(s);
adamc@666 1620 memcpy(ctx->page.front, s, len);
adamc@666 1621 ctx->page.front += len;
adamc@117 1622 }
adamc@117 1623
adamc@311 1624 void uw_write(uw_context ctx, const char* s) {
adamc@311 1625 uw_check(ctx, strlen(s) + 1);
adamc@311 1626 uw_write_unsafe(ctx, s);
adamc@666 1627 *ctx->page.front = 0;
adamc@102 1628 }
adamc@106 1629
adamc@311 1630 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136 1631 char *result;
adamc@136 1632 int len;
adamc@311 1633 uw_check_heap(ctx, INTS_MAX);
adamc@666 1634 result = ctx->heap.front;
adamc@276 1635 sprintf(result, "%lld%n", n, &len);
adamc@666 1636 ctx->heap.front += len+1;
adamc@136 1637 return result;
adamc@106 1638 }
adamc@106 1639
adamc@311 1640 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136 1641 char *result;
adamc@136 1642 int len;
adamc@311 1643 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1644 result = ctx->heap.front;
adam@1920 1645 sprintf(result, "%.16g%n", n, &len);
adamc@666 1646 ctx->heap.front += len+1;
adamc@136 1647 return result;
adamc@106 1648 }
adamc@106 1649
adamc@311 1650 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136 1651 int len = strlen(s);
adamc@136 1652 char *result, *p;
adamc@311 1653 uw_check_heap(ctx, len * 6 + 1);
adamc@136 1654
adamc@666 1655 result = p = ctx->heap.front;
adamc@136 1656
adamc@136 1657 for (; *s; s++) {
adamc@1054 1658 unsigned char c = *s;
adamc@136 1659
adamc@136 1660 if (c == '"') {
adamc@136 1661 strcpy(p, "&quot;");
adamc@136 1662 p += 6;
adamc@136 1663 } else if (c == '&') {
adamc@136 1664 strcpy(p, "&amp;");
adamc@136 1665 p += 5;
adamc@136 1666 }
adamc@1059 1667 else
adamc@136 1668 *p++ = c;
adamc@136 1669 }
adamc@136 1670
adamc@137 1671 *p++ = 0;
adamc@666 1672 ctx->heap.front = p;
adamc@136 1673 return result;
adamc@106 1674 }
adamc@106 1675
adamc@1011 1676 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011 1677 char *result, *p;
adamc@1011 1678 uw_check_heap(ctx, 7);
adamc@1011 1679
adamc@1011 1680 result = p = ctx->heap.front;
adamc@1011 1681
adamc@1011 1682 if (c == '"') {
adamc@1011 1683 strcpy(p, "&quot;");
adamc@1011 1684 p += 6;
adamc@1011 1685 } else if (c == '&') {
adamc@1011 1686 strcpy(p, "&amp;");
adamc@1011 1687 p += 5;
adamc@1011 1688 }
adamc@1059 1689 else
adamc@1011 1690 *p++ = c;
adamc@1011 1691
adamc@1011 1692 *p++ = 0;
adamc@1011 1693 ctx->heap.front = p;
adamc@1011 1694 return result;
adamc@1011 1695 }
adamc@1011 1696
adamc@721 1697 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721 1698 return s;
adamc@721 1699 }
adamc@721 1700
adamc@311 1701 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117 1702 int len;
adamc@117 1703
adamc@666 1704 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1705 ctx->page.front += len;
adamc@106 1706 }
adamc@106 1707
adamc@428 1708 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311 1709 uw_check(ctx, INTS_MAX);
adamc@311 1710 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428 1711
adamc@428 1712 return uw_unit_v;
adamc@106 1713 }
adamc@106 1714
adamc@428 1715 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117 1716 int len;
adamc@117 1717
adamc@311 1718 uw_check(ctx, FLOATS_MAX);
adamc@666 1719 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1720 ctx->page.front += len;
adamc@428 1721
adamc@428 1722 return uw_unit_v;
adamc@117 1723 }
adamc@117 1724
adamc@428 1725 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311 1726 uw_check(ctx, strlen(s) * 6);
adamc@117 1727
adamc@106 1728 for (; *s; s++) {
adamc@1054 1729 unsigned char c = *s;
adamc@106 1730
adamc@106 1731 if (c == '"')
adamc@311 1732 uw_write_unsafe(ctx, "&quot;");
adamc@136 1733 else if (c == '&')
adamc@311 1734 uw_write_unsafe(ctx, "&amp;");
adamc@1059 1735 else
adamc@311 1736 uw_writec_unsafe(ctx, c);
adamc@106 1737 }
adamc@428 1738
adamc@428 1739 return uw_unit_v;
adamc@106 1740 }
adamc@120 1741
adamc@1011 1742 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011 1743 uw_check(ctx, 6);
adamc@1011 1744
adamc@1011 1745 if (c == '"')
adamc@1011 1746 uw_write_unsafe(ctx, "&quot;");
adamc@1011 1747 else if (c == '&')
adamc@1011 1748 uw_write_unsafe(ctx, "&amp;");
adamc@1059 1749 else
adamc@1011 1750 uw_writec_unsafe(ctx, c);
adamc@1011 1751
adamc@1011 1752 return uw_unit_v;
adamc@1011 1753 }
adamc@1011 1754
adamc@120 1755
adamc@311 1756 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137 1757 int len;
adamc@137 1758 char *r;
adamc@137 1759
adamc@311 1760 uw_check_heap(ctx, INTS_MAX);
adamc@666 1761 r = ctx->heap.front;
adamc@276 1762 sprintf(r, "%lld%n", n, &len);
adamc@666 1763 ctx->heap.front += len+1;
adamc@137 1764 return r;
adamc@120 1765 }
adamc@120 1766
adamc@682 1767 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1768 if (ctx->client == NULL || chn.cli != ctx->client->id)
adamc@682 1769 return "";
adamc@682 1770 else {
adamc@682 1771 int len;
adamc@682 1772 char *r;
adamc@679 1773
adamc@682 1774 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1775 r = ctx->heap.front;
adamc@682 1776 sprintf(r, "%u%n", chn.chn, &len);
adamc@682 1777 ctx->heap.front += len+1;
adamc@682 1778 return r;
adamc@682 1779 }
adamc@679 1780 }
adamc@679 1781
adamc@311 1782 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137 1783 int len;
adamc@137 1784 char *r;
adamc@137 1785
adamc@311 1786 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1787 r = ctx->heap.front;
adamc@137 1788 sprintf(r, "%g%n", n, &len);
adamc@666 1789 ctx->heap.front += len+1;
adamc@137 1790 return r;
adamc@120 1791 }
adamc@120 1792
adamc@311 1793 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137 1794 char *r, *p;
adamc@137 1795
adamc@925 1796 if (s[0] == '\0')
adamc@925 1797 return "_";
adamc@925 1798
adamc@925 1799 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925 1800
adamc@925 1801 r = p = ctx->heap.front;
adamc@925 1802 if (s[0] == '_')
adamc@925 1803 *p++ = '_';
adamc@925 1804
adamc@925 1805 for (; *s; s++) {
adamc@1087 1806 unsigned char c = *s;
adamc@137 1807
adamc@137 1808 if (c == ' ')
adamc@137 1809 *p++ = '+';
adamc@137 1810 else if (isalnum(c))
adamc@137 1811 *p++ = c;
adamc@137 1812 else {
adamc@1259 1813 sprintf(p, ".%02X", c);
adamc@137 1814 p += 3;
adamc@137 1815 }
adamc@137 1816 }
adamc@137 1817
adamc@137 1818 *p++ = 0;
adamc@666 1819 ctx->heap.front = p;
adamc@137 1820 return r;
adamc@120 1821 }
adamc@120 1822
adamc@311 1823 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 1824 if (b == uw_Basis_False)
adamc@186 1825 return "0";
adamc@186 1826 else
adamc@186 1827 return "1";
adamc@186 1828 }
adamc@186 1829
adam@1620 1830 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620 1831 char *r;
adam@1620 1832 int len;
adam@1620 1833 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620 1834 r = ctx->heap.front;
adam@1620 1835 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620 1836 ctx->heap.front += len+1;
adam@1620 1837 return r;
adam@1620 1838 }
adam@1620 1839
adamc@311 1840 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120 1841 int len;
adamc@120 1842
adamc@666 1843 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1844 ctx->page.front += len;
adamc@120 1845 }
adamc@120 1846
adamc@428 1847 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311 1848 uw_check(ctx, INTS_MAX);
adamc@311 1849 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428 1850
adamc@428 1851 return uw_unit_v;
adamc@120 1852 }
adamc@120 1853
adamc@682 1854 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1855 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682 1856 int len;
adamc@682 1857
adamc@682 1858 uw_check(ctx, INTS_MAX + 1);
adamc@682 1859 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682 1860 ctx->page.front += len;
adamc@682 1861 }
adamc@682 1862
adamc@679 1863 return uw_unit_v;
adamc@679 1864 }
adamc@679 1865
adamc@428 1866 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120 1867 int len;
adamc@120 1868
adamc@311 1869 uw_check(ctx, FLOATS_MAX);
adamc@666 1870 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1871 ctx->page.front += len;
adamc@428 1872
adamc@428 1873 return uw_unit_v;
adamc@120 1874 }
adamc@120 1875
adamc@488 1876 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376 1877 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488 1878 }
adamc@488 1879
adam@1404 1880 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404 1881 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404 1882 }
adam@1404 1883
adamc@428 1884 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925 1885 if (s[0] == '\0') {
adamc@925 1886 uw_check(ctx, 1);
adamc@925 1887 uw_writec_unsafe(ctx, '_');
adamc@925 1888 return uw_unit_v;
adamc@925 1889 }
adamc@925 1890
adamc@925 1891 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925 1892
adamc@925 1893 if (s[0] == '_')
adamc@925 1894 uw_writec_unsafe(ctx, '_');
adamc@120 1895
adamc@120 1896 for (; *s; s++) {
adamc@1087 1897 unsigned char c = *s;
adamc@120 1898
adamc@120 1899 if (c == ' ')
adamc@311 1900 uw_writec_unsafe(ctx, '+');
adamc@120 1901 else if (isalnum(c))
adamc@311 1902 uw_writec_unsafe(ctx, c);
adamc@120 1903 else {
adamc@1259 1904 sprintf(ctx->page.front, ".%02X", c);
adamc@666 1905 ctx->page.front += 3;
adamc@120 1906 }
adamc@120 1907 }
adamc@428 1908
adamc@428 1909 return uw_unit_v;
adamc@120 1910 }
adamc@120 1911
adamc@428 1912 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311 1913 if (b == uw_Basis_False)
adamc@311 1914 uw_writec(ctx, '0');
adamc@186 1915 else
adamc@311 1916 uw_writec(ctx, '1');
adamc@428 1917
adamc@428 1918 return uw_unit_v;
adamc@186 1919 }
adamc@186 1920
adam@1620 1921 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620 1922 int len;
adam@1620 1923
adam@1620 1924 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620 1925 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620 1926 ctx->page.front += len;
adam@1620 1927
adam@1620 1928 return uw_unit_v;
adam@1620 1929 }
adam@1620 1930
adamc@120 1931
adamc@311 1932 static char *uw_unurlify_advance(char *s) {
adamc@144 1933 char *new_s = strchr(s, '/');
adamc@120 1934
adamc@120 1935 if (new_s)
adamc@120 1936 *new_s++ = 0;
adamc@120 1937 else
adamc@144 1938 new_s = strchr(s, 0);
adamc@144 1939
adamc@144 1940 return new_s;
adamc@144 1941 }
adamc@144 1942
adamc@311 1943 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311 1944 char *new_s = uw_unurlify_advance(*s);
adamc@311 1945 uw_Basis_int r;
adamc@120 1946
adamc@276 1947 r = atoll(*s);
adamc@120 1948 *s = new_s;
adamc@120 1949 return r;
adamc@120 1950 }
adamc@120 1951
adamc@311 1952 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311 1953 char *new_s = uw_unurlify_advance(*s);
adamc@311 1954 uw_Basis_float r;
adamc@120 1955
adamc@120 1956 r = atof(*s);
adamc@120 1957 *s = new_s;
adamc@120 1958 return r;
adamc@120 1959 }
adamc@120 1960
adamc@488 1961 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365 1962 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365 1963 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365 1964 return r;
adamc@488 1965 }
adamc@488 1966
adamc@1023 1967 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char *r, char *s) {
adamc@927 1968 char *s1, *s2 = s;
adamc@144 1969 int n;
adamc@136 1970
adamc@1023 1971 if (!fromClient) {
adamc@1023 1972 if (*s2 == '_')
adamc@1023 1973 ++s2;
adamc@1259 1974 else if ((s2[0] == '%' || s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' || s2[2] == 'F'))
adamc@1023 1975 s2 += 3;
adamc@1023 1976 }
adamc@925 1977
adamc@927 1978 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087 1979 unsigned char c = *s2;
adamc@136 1980
adamc@136 1981 switch (c) {
adamc@136 1982 case '+':
adamc@136 1983 *s1 = ' ';
adamc@136 1984 break;
adamc@136 1985 case '%':
adamc@169 1986 if (s2[1] == 0)
adamc@311 1987 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169 1988 if (s2[2] == 0)
adamc@311 1989 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169 1990 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444 1991 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136 1992 *s1 = n;
adamc@136 1993 s2 += 2;
adamc@136 1994 break;
adamc@1259 1995 case '.':
adamc@1259 1996 if (!fromClient) {
adamc@1259 1997 if (s2[1] == 0)
adamc@1259 1998 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259 1999 if (s2[2] == 0)
adamc@1259 2000 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259 2001 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444 2002 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259 2003 *s1 = n;
adamc@1259 2004 s2 += 2;
adamc@1259 2005 break;
adamc@1259 2006 }
adamc@136 2007 default:
adamc@136 2008 *s1 = c;
adamc@136 2009 }
adamc@136 2010 }
adamc@136 2011 *s1++ = 0;
adamc@144 2012 return s1;
adamc@144 2013 }
adamc@144 2014
adamc@311 2015 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311 2016 char *new_s = uw_unurlify_advance(*s);
adamc@311 2017 uw_Basis_bool r;
adamc@186 2018
adamc@186 2019 if (*s[0] == 0 || !strcmp(*s, "0") || !strcmp(*s, "off"))
adamc@311 2020 r = uw_Basis_False;
adamc@186 2021 else
adamc@311 2022 r = uw_Basis_True;
adamc@186 2023
adamc@186 2024 *s = new_s;
adamc@186 2025 return r;
adamc@186 2026 }
adamc@186 2027
adamc@311 2028 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311 2029 char *new_s = uw_unurlify_advance(*s);
adamc@1134 2030 char *r;
adamc@1134 2031 int len;
adamc@144 2032
adamc@200 2033 len = strlen(*s);
adamc@311 2034 uw_check_heap(ctx, len + 1);
adamc@144 2035
adamc@666 2036 r = ctx->heap.front;
adamc@1023 2037 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023 2038 *s = new_s;
adamc@1023 2039 return r;
adamc@1023 2040 }
adamc@1023 2041
adamc@1109 2042 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109 2043 *s = uw_unurlify_advance(*s);
adamc@1109 2044 return uw_unit_v;
adamc@1109 2045 }
adamc@1109 2046
adamc@1023 2047 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023 2048 char *new_s = uw_unurlify_advance(*s);
adamc@1134 2049 char *r;
adamc@1134 2050 int len;
adamc@1023 2051
adamc@1023 2052 len = strlen(*s);
adamc@1023 2053 uw_check_heap(ctx, len + 1);
adamc@1023 2054
adamc@1023 2055 r = ctx->heap.front;
adamc@1023 2056 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136 2057 *s = new_s;
adamc@136 2058 return r;
adamc@120 2059 }
adamc@135 2060
adamc@135 2061
adamc@311 2062 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286 2063 int len;
adamc@286 2064 char *r;
adamc@286 2065
adamc@311 2066 uw_check_heap(ctx, INTS_MAX);
adamc@666 2067 r = ctx->heap.front;
adamc@286 2068 sprintf(r, "%lld%n", n, &len);
adamc@666 2069 ctx->heap.front += len+1;
adamc@286 2070 return r;
adamc@286 2071 }
adamc@286 2072
adamc@428 2073 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286 2074 int len;
adamc@286 2075
adamc@311 2076 uw_check(ctx, INTS_MAX);
adamc@666 2077 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 2078 ctx->page.front += len;
adamc@428 2079
adamc@428 2080 return uw_unit_v;
adamc@286 2081 }
adamc@286 2082
adam@1358 2083 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358 2084 unsigned int n = ch;
adam@1358 2085 int len;
adam@1358 2086 char *r;
adam@1358 2087
adam@1358 2088 uw_check_heap(ctx, INTS_MAX+3);
adam@1358 2089 r = ctx->heap.front;
adam@1358 2090 sprintf(r, "&#%u;%n", n, &len);
adam@1358 2091 ctx->heap.front += len+1;
adam@1358 2092 return r;
adam@1358 2093 }
adam@1358 2094
adam@1358 2095 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358 2096 unsigned int n = ch;
adam@1358 2097 int len;
adam@1358 2098
adam@1358 2099 uw_check(ctx, INTS_MAX+3);
adam@1358 2100 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358 2101 ctx->page.front += len;
adam@1358 2102 return uw_unit_v;
adam@1358 2103 }
adam@1358 2104
adamc@311 2105 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286 2106 int len;
adamc@286 2107 char *r;
adamc@286 2108
adamc@311 2109 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 2110 r = ctx->heap.front;
adamc@286 2111 sprintf(r, "%g%n", n, &len);
adamc@666 2112 ctx->heap.front += len+1;
adamc@286 2113 return r;
adamc@286 2114 }
adamc@286 2115
adamc@428 2116 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286 2117 int len;
adamc@286 2118
adamc@311 2119 uw_check(ctx, FLOATS_MAX);
adamc@666 2120 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 2121 ctx->page.front += len;
adamc@428 2122
adamc@428 2123 return uw_unit_v;
adamc@286 2124 }
adamc@286 2125
adam@1365 2126 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360 2127 int len;
adam@1360 2128 char *r;
adam@1360 2129
adam@1360 2130 uw_check_heap(ctx, INTS_MAX);
adam@1360 2131 r = ctx->heap.front;
adamc@1377 2132 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360 2133 ctx->heap.front += len+1;
adam@1360 2134 return r;
adam@1360 2135 }
adam@1360 2136
adam@1365 2137 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360 2138 int len;
adam@1360 2139
adam@1360 2140 uw_check(ctx, INTS_MAX);
adam@1360 2141 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360 2142 ctx->page.front += len;
adam@1360 2143
adam@1360 2144 return uw_unit_v;
adam@1360 2145 }
adam@1360 2146
adam@1444 2147 char *uw_Basis_htmlifyString(uw_context ctx, const char *s) {
adamc@137 2148 char *r, *s2;
adamc@137 2149
adamc@311 2150 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137 2151
adamc@666 2152 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054 2153 unsigned char c = *s;
adamc@137 2154
adamc@137 2155 switch (c) {
adamc@137 2156 case '<':
adamc@137 2157 strcpy(s2, "&lt;");
adamc@137 2158 s2 += 4;
adamc@137 2159 break;
adamc@137 2160 case '&':
adamc@137 2161 strcpy(s2, "&amp;");
adamc@137 2162 s2 += 5;
adamc@137 2163 break;
adamc@137 2164 default:
adamc@1059 2165 *s2++ = c;
adamc@137 2166 }
adamc@137 2167 }
adamc@137 2168
adamc@137 2169 *s2++ = 0;
adamc@666 2170 ctx->heap.front = s2;
adamc@137 2171 return r;
adamc@135 2172 }
adamc@135 2173
adamc@428 2174 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321 2175 uw_check(ctx, strlen(s) * 6);
adamc@135 2176
adamc@135 2177 for (; *s; s++) {
adamc@1054 2178 unsigned char c = *s;
adamc@135 2179
adamc@135 2180 switch (c) {
adamc@135 2181 case '<':
adamc@311 2182 uw_write_unsafe(ctx, "&lt;");
adamc@135 2183 break;
adamc@135 2184 case '&':
adamc@311 2185 uw_write_unsafe(ctx, "&amp;");
adamc@135 2186 break;
adamc@135 2187 default:
adamc@1059 2188 uw_writec_unsafe(ctx, c);
adamc@135 2189 }
adamc@135 2190 }
adamc@428 2191
adamc@428 2192 return uw_unit_v;
adamc@135 2193 }
adamc@180 2194
adamc@311 2195 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 2196 if (b == uw_Basis_False)
adamc@286 2197 return "False";
adamc@286 2198 else
adamc@286 2199 return "True";
adamc@286 2200 }
adamc@286 2201
adamc@428 2202 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311 2203 if (b == uw_Basis_False) {
adamc@311 2204 uw_check(ctx, 6);
adamc@666 2205 strcpy(ctx->page.front, "False");
adamc@666 2206 ctx->page.front += 5;
adamc@286 2207 } else {
adamc@311 2208 uw_check(ctx, 5);
adamc@666 2209 strcpy(ctx->page.front, "True");
adamc@666 2210 ctx->page.front += 4;
adamc@286 2211 }
adamc@428 2212
adamc@428 2213 return uw_unit_v;
adamc@286 2214 }
adamc@286 2215
adamc@436 2216 #define TIME_FMT "%x %X"
adamc@438 2217 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632 2218 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436 2219
adam@1629 2220 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629 2221
adamc@436 2222 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629 2223 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436 2224 }
adamc@436 2225
adamc@436 2226 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629 2227 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436 2228 }
adamc@436 2229
adam@1446 2230 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446 2231 int len;
adam@1446 2232 char *r;
adam@1446 2233
adam@1446 2234 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446 2235 r = ctx->heap.front;
adam@1446 2236 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446 2237 ctx->heap.front += len+1;
adam@1446 2238 return r;
adam@1446 2239 }
adam@1446 2240
adam@1446 2241 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446 2242 int len;
adam@1446 2243
adam@1446 2244 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446 2245 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446 2246 ctx->page.front += len;
adam@1446 2247
adam@1446 2248 return uw_unit_v;
adam@1446 2249 }
adam@1446 2250
adamc@821 2251 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388 2252 while (n >= 0) {
adam@1388 2253 if (*s == 0)
adam@1388 2254 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388 2255
adam@1388 2256 if (n == 0)
adam@1388 2257 return *s;
adam@1388 2258
adam@1388 2259 --n;
adam@1388 2260 ++s;
adam@1388 2261 }
adam@1388 2262
adam@1388 2263 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821 2264 }
adamc@821 2265
adamc@821 2266 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388 2267 while (n >= 0) {
adam@1388 2268 if (*s == 0 || n == 0)
adam@1388 2269 return s;
adam@1388 2270
adam@1388 2271 --n;
adam@1388 2272 ++s;
adam@1388 2273 }
adam@1388 2274
adam@1388 2275 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821 2276 }
adamc@821 2277
adamc@828 2278 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828 2279 return strlen(s);
adamc@828 2280 }
adamc@828 2281
adam@1388 2282 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388 2283 while (n > 0) {
adam@1388 2284 if (*s == 0)
adam@1388 2285 return uw_Basis_False;
adam@1388 2286
adam@1388 2287 --n;
adam@1388 2288 ++s;
adam@1388 2289 }
adam@1388 2290
adam@1388 2291 return uw_Basis_True;
adam@1388 2292 }
adam@1388 2293
adamc@829 2294 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829 2295 return strchr(s, ch);
adamc@829 2296 }
adamc@829 2297
adamc@831 2298 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831 2299 return strcspn(s, chs);
adamc@831 2300 }
adamc@831 2301
adamc@829 2302 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829 2303 uw_Basis_string r = strchr(s, ch);
adamc@829 2304 if (r == NULL)
adamc@829 2305 return NULL;
adamc@829 2306 else {
adamc@829 2307 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829 2308 *nr = r - s;
adamc@829 2309 return nr;
adamc@829 2310 }
adamc@829 2311 }
adamc@829 2312
adam@1390 2313 uw_Basis_int *uw_Basis_strsindex(uw_context ctx, const char *haystack, const char *needle) {
adam@1390 2314 uw_Basis_string r = strstr(haystack, needle);
adam@1390 2315 if (r == NULL)
adam@1390 2316 return NULL;
adam@1390 2317 else {
adam@1390 2318 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390 2319 *nr = r - haystack;
adam@1390 2320 return nr;
adam@1390 2321 }
adam@1390 2322 }
adam@1390 2323
adamc@311 2324 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828 2325 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180 2326 char *s;
adamc@180 2327
adamc@311 2328 uw_check_heap(ctx, len);
adamc@180 2329
adamc@666 2330 s = ctx->heap.front;
adamc@180 2331
adamc@180 2332 strcpy(s, s1);
adamc@180 2333 strcat(s, s2);
adamc@666 2334 ctx->heap.front += len;
adamc@180 2335
adamc@180 2336 return s;
adamc@180 2337 }
adamc@278 2338
adamc@829 2339 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829 2340 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829 2341
adamc@829 2342 if (start < 0)
adamc@829 2343 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829 2344 if (len < 0)
adamc@829 2345 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829 2346 if (start + len > full_len)
adamc@829 2347 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829 2348
adamc@829 2349 if (start + len == full_len)
adamc@829 2350 return &s[start];
adamc@829 2351 else {
adamc@829 2352 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959 2353 memcpy(r, s+start, len);
adamc@829 2354 r[len] = 0;
adamc@829 2355 return r;
adamc@829 2356 }
adamc@829 2357
adamc@829 2358 }
adamc@829 2359
adamc@1023 2360 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023 2361 char *r;
adamc@1023 2362
adamc@1023 2363 uw_check_heap(ctx, 2);
adamc@1023 2364 r = ctx->heap.front;
adamc@1023 2365 r[0] = ch;
adamc@1023 2366 r[1] = 0;
adamc@1023 2367
adamc@1023 2368 ctx->heap.front += 2;
adamc@1023 2369
adamc@1023 2370 return r;
adamc@1023 2371 }
adamc@1023 2372
adamc@737 2373 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828 2374 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278 2375 char *s;
adamc@278 2376
adamc@311 2377 uw_check_heap(ctx, len);
adamc@278 2378
adamc@666 2379 s = ctx->heap.front;
adamc@278 2380
adamc@278 2381 strcpy(s, s1);
adamc@666 2382 ctx->heap.front += len;
adamc@278 2383
adamc@278 2384 return s;
adamc@278 2385 }
adamc@280 2386
adam@1295 2387 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295 2388 if (ctx->error_message[0]) {
adam@1295 2389 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295 2390 ctx->error_message[0] = 0;
adam@1295 2391 return s;
adam@1295 2392 } else
adam@1295 2393 return NULL;
adam@1295 2394 }
adam@1295 2395
adamc@737 2396 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493 2397 if (s1)
adamc@737 2398 return uw_strdup(ctx, s1);
adamc@493 2399 else
adamc@493 2400 return NULL;
adamc@493 2401 }
adamc@493 2402
adamc@742 2403 char *uw_memdup(uw_context ctx, const char *p, size_t len) {
adamc@742 2404 char *r = uw_malloc(ctx, len);
adamc@742 2405 memcpy(r, p, len);
adamc@742 2406 return r;
adamc@742 2407 }
adamc@280 2408
adamc@879 2409 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879 2410
adamc@311 2411 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281 2412 int len;
adamc@281 2413 char *r;
adamc@281 2414
adamc@311 2415 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666 2416 r = ctx->heap.front;
adamc@879 2417 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666 2418 ctx->heap.front += len+1;
adamc@281 2419 return r;
adamc@281 2420 }
adamc@281 2421
adamc@467 2422 char *uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int *n) {
adamc@467 2423 if (n == NULL)
adamc@467 2424 return "NULL";
adamc@467 2425 else
adamc@467 2426 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467 2427 }
adamc@467 2428
adam@1920 2429 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879 2430
adamc@311 2431 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281 2432 int len;
adamc@281 2433 char *r;
adamc@281 2434
adamc@311 2435 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666 2436 r = ctx->heap.front;
adamc@879 2437 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666 2438 ctx->heap.front += len+1;
adamc@281 2439 return r;
adamc@281 2440 }
adamc@281 2441
adamc@467 2442 char *uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float *n) {
adamc@467 2443 if (n == NULL)
adamc@467 2444 return "NULL";
adamc@467 2445 else
adamc@467 2446 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467 2447 }
adamc@467 2448
adam@1834 2449 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879 2450 char *uw_sqlsuffixString = "::text";
adamc@1011 2451 char *uw_sqlsuffixChar = "::char";
adamc@281 2452
adamc@311 2453 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280 2454 char *r, *s2;
adamc@280 2455
adamc@879 2456 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280 2457
adamc@666 2458 r = s2 = ctx->heap.front;
adamc@879 2459 if (uw_Estrings)
adamc@879 2460 *s2++ = 'E';
adamc@280 2461 *s2++ = '\'';
adamc@280 2462
adamc@280 2463 for (; *s; s++) {
adamc@280 2464 char c = *s;
adamc@280 2465
adamc@280 2466 switch (c) {
adamc@280 2467 case '\'':
adamc@885 2468 if (uw_Estrings)
adamc@885 2469 strcpy(s2, "\\'");
adamc@885 2470 else
adamc@885 2471 strcpy(s2, "''");
adamc@280 2472 s2 += 2;
adamc@280 2473 break;
adamc@280 2474 case '\\':
adamc@885 2475 if (uw_Estrings) {
adamc@885 2476 strcpy(s2, "\\\\");
adamc@885 2477 s2 += 2;
adamc@885 2478 } else
adamc@885 2479 *s2++ = '\\';
adamc@280 2480 break;
adamc@280 2481 default:
adamc@1150 2482 if (isprint((int)c))
adamc@280 2483 *s2++ = c;
adamc@879 2484 else if (uw_Estrings) {
adam@1857 2485 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280 2486 s2 += 4;
adamc@280 2487 }
adamc@879 2488 else
adam@1689 2489 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280 2490 }
adamc@280 2491 }
adamc@280 2492
adamc@879 2493 *s2++ = '\'';
adamc@879 2494 strcpy(s2, uw_sqlsuffixString);
adamc@879 2495 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280 2496 return r;
adamc@280 2497 }
adamc@281 2498
adamc@1011 2499 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011 2500 char *r, *s2;
adamc@1011 2501
adamc@1011 2502 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011 2503
adamc@1011 2504 r = s2 = ctx->heap.front;
adamc@1011 2505 if (uw_Estrings)
adamc@1011 2506 *s2++ = 'E';
adamc@1011 2507 *s2++ = '\'';
adamc@1011 2508
adamc@1011 2509 switch (c) {
adamc@1011 2510 case '\'':
adamc@1011 2511 if (uw_Estrings)
adamc@1011 2512 strcpy(s2, "\\'");
adamc@1011 2513 else
adamc@1011 2514 strcpy(s2, "''");
adamc@1011 2515 s2 += 2;
adamc@1011 2516 break;
adamc@1011 2517 case '\\':
adamc@1011 2518 if (uw_Estrings) {
adamc@1011 2519 strcpy(s2, "\\\\");
adamc@1011 2520 s2 += 2;
adamc@1011 2521 } else
adamc@1011 2522 *s2++ = '\\';
adamc@1011 2523 break;
adamc@1011 2524 default:
adamc@1150 2525 if (isprint((int)c))
adamc@1011 2526 *s2++ = c;
adamc@1011 2527 else if (uw_Estrings) {
adam@1857 2528 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011 2529 s2 += 4;
adamc@1011 2530 }
adamc@1011 2531 else
adamc@1011 2532 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011 2533 }
adamc@1011 2534
adamc@1011 2535 *s2++ = '\'';
adamc@1011 2536 strcpy(s2, uw_sqlsuffixChar);
adamc@1011 2537 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011 2538 return r;
adamc@1011 2539 }
adamc@1011 2540
adamc@879 2541 char *uw_sqlsuffixBlob = "::bytea";
adamc@879 2542
adam@1867 2543 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737 2544 char *r, *s2;
adamc@737 2545 size_t i;
adamc@737 2546
adam@1867 2547 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737 2548
adamc@737 2549 r = s2 = ctx->heap.front;
adamc@879 2550 if (uw_Estrings)
adamc@879 2551 *s2++ = 'E';
adam@1867 2552 else
adam@1867 2553 *s2++ = 'X';
adamc@737 2554 *s2++ = '\'';
adamc@737 2555
adamc@737 2556 for (i = 0; i < b.size; ++i) {
adam@1867 2557 unsigned char c = b.data[i];
adam@1867 2558
adam@1867 2559 if (uw_Estrings) {
adam@1867 2560 switch (c) {
adam@1867 2561 case '\'':
adamc@885 2562 strcpy(s2, "\\'");
adam@1867 2563 s2 += 2;
adam@1867 2564 break;
adam@1867 2565 case '\\':
adamc@885 2566 strcpy(s2, "\\\\\\\\");
adamc@885 2567 s2 += 4;
adam@1867 2568 break;
adam@1867 2569 default:
adam@1867 2570 if (isprint((int)c))
adam@1867 2571 *s2++ = c;
adam@1867 2572 else {
adam@1867 2573 sprintf(s2, "\\\\%03o", c);
adam@1867 2574 s2 += 5;
adam@1867 2575 }
adamc@737 2576 }
adam@1867 2577 } else {
adam@1867 2578 sprintf(s2, "%02X", c);
adam@1867 2579 s2 += 2;
adamc@737 2580 }
adam@1867 2581 }
adamc@737 2582
adamc@879 2583 *s2++ = '\'';
adamc@879 2584 strcpy(s2, uw_sqlsuffixBlob);
adamc@879 2585 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737 2586 return r;
adamc@737 2587 }
adamc@737 2588
adamc@682 2589 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 2590 int len;
adamc@682 2591 char *r;
adamc@682 2592 unsigned long long combo = ((unsigned long long)chn.cli << 32) | chn.chn;
adamc@682 2593
adamc@682 2594 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682 2595 r = ctx->heap.front;
adamc@879 2596 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682 2597 ctx->heap.front += len+1;
adamc@682 2598 return r;
adamc@682 2599 }
adamc@682 2600
adamc@682 2601 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 2602 int len;
adamc@682 2603 char *r;
adamc@682 2604 unsigned long long combo = ((unsigned long long)chn.cli << 32) | chn.chn;
adamc@682 2605
adamc@682 2606 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 2607 r = ctx->heap.front;
adamc@682 2608 sprintf(r, "%lld%n", combo, &len);
adamc@682 2609 ctx->heap.front += len+1;
adamc@682 2610 return r;
adamc@682 2611 }
adamc@682 2612
adamc@879 2613 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879 2614
adamc@682 2615 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682 2616 int len;
adamc@682 2617 char *r;
adamc@682 2618
adamc@682 2619 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682 2620 r = ctx->heap.front;
adamc@879 2621 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682 2622 ctx->heap.front += len+1;
adamc@682 2623 return r;
adamc@682 2624 }
adamc@682 2625
adamc@682 2626 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682 2627 int len;
adamc@682 2628 char *r;
adamc@682 2629
adamc@682 2630 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 2631 r = ctx->heap.front;
adamc@682 2632 sprintf(r, "%u%n", cli, &len);
adamc@682 2633 ctx->heap.front += len+1;
adamc@682 2634 return r;
adamc@682 2635 }
adamc@682 2636
adamc@467 2637 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467 2638 if (s == NULL)
adamc@467 2639 return "NULL";
adamc@467 2640 else
adamc@467 2641 return uw_Basis_sqlifyString(ctx, s);
adamc@467 2642 }
adamc@467 2643
adamc@311 2644 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 2645 if (b == uw_Basis_False)
adamc@281 2646 return "FALSE";
adamc@281 2647 else
adamc@281 2648 return "TRUE";
adamc@281 2649 }
adamc@282 2650
adamc@467 2651 char *uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool *b) {
adamc@467 2652 if (b == NULL)
adamc@467 2653 return "NULL";
adamc@467 2654 else
adamc@467 2655 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467 2656 }
adamc@467 2657
adamc@439 2658 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439 2659 size_t len;
adamc@682 2660 char *r, *s;
adam@1392 2661 struct tm stm = {};
adam@1392 2662 stm.tm_isdst = -1;
adamc@682 2663
adam@1365 2664 if (localtime_r(&t.seconds, &stm)) {
adamc@682 2665 s = uw_malloc(ctx, TIMES_MAX);
adam@1364 2666 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834 2667 if (uw_sql_type_annotations) {
adam@1834 2668 if (t.microseconds) {
adam@1834 2669 r = uw_malloc(ctx, len + 21);
adam@1834 2670 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834 2671 } else {
adam@1834 2672 r = uw_malloc(ctx, len + 14);
adam@1834 2673 sprintf(r, "'%s'::timestamp", s);
adam@1834 2674 }
adam@1367 2675 } else {
adam@1834 2676 r = uw_malloc(ctx, len + 3);
adam@1834 2677 sprintf(r, "'%s'", s);
adam@1367 2678 }
adamc@682 2679 return r;
adamc@682 2680 } else
adamc@682 2681 return "<Invalid time>";
adamc@682 2682 }
adamc@682 2683
adamc@682 2684 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682 2685 size_t len;
adamc@439 2686 char *r;
adam@1392 2687 struct tm stm = {};
adam@1392 2688 stm.tm_isdst = -1;
adamc@439 2689
adam@1365 2690 if (localtime_r(&t.seconds, &stm)) {
adamc@439 2691 uw_check_heap(ctx, TIMES_MAX);
adamc@666 2692 r = ctx->heap.front;
adamc@439 2693 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 2694 ctx->heap.front += len+1;
adamc@439 2695 return r;
adamc@439 2696 } else
adamc@439 2697 return "<Invalid time>";
adamc@439 2698 }
adamc@439 2699
adam@1364 2700 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364 2701 size_t len;
adam@1364 2702 char *r;
adam@1392 2703 struct tm stm = {};
adam@1392 2704 stm.tm_isdst = -1;
adam@1364 2705
adam@1365 2706 if (localtime_r(&t.seconds, &stm)) {
adam@1364 2707 uw_check_heap(ctx, TIMES_MAX);
adam@1364 2708 r = ctx->heap.front;
adam@1365 2709 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365 2710 ctx->heap.front += len;
adam@1365 2711 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365 2712 ctx->heap.front += 8;
adam@1364 2713 return r;
adam@1364 2714 } else
adam@1364 2715 return "<Invalid time>";
adam@1364 2716 }
adam@1364 2717
adamc@467 2718 char *uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time *t) {
adamc@467 2719 if (t == NULL)
adamc@467 2720 return "NULL";
adamc@467 2721 else
adamc@467 2722 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467 2723 }
adamc@467 2724
adamc@311 2725 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311 2726 static uw_Basis_int true = 1;
adamc@311 2727 static uw_Basis_int false = 0;
adamc@282 2728
adamc@311 2729 if (b == uw_Basis_False)
adamc@282 2730 return (char *)&false;
adamc@282 2731 else
adamc@282 2732 return (char *)&true;
adamc@282 2733 }
adamc@284 2734
adamc@311 2735 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284 2736 int len;
adamc@284 2737 char *r;
adamc@284 2738
adamc@311 2739 uw_check_heap(ctx, INTS_MAX);
adamc@666 2740 r = ctx->heap.front;
adamc@284 2741 sprintf(r, "%lld%n", n, &len);
adamc@666 2742 ctx->heap.front += len+1;
adamc@284 2743 return r;
adamc@284 2744 }
adamc@285 2745
adamc@311 2746 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285 2747 int len;
adamc@285 2748 char *r;
adamc@285 2749
adamc@311 2750 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 2751 r = ctx->heap.front;
adamc@285 2752 sprintf(r, "%g%n", n, &len);
adamc@666 2753 ctx->heap.front += len+1;
adamc@285 2754 return r;
adamc@285 2755 }
adamc@285 2756
adamc@821 2757 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821 2758 char *r = uw_malloc(ctx, 2);
adamc@821 2759 r[0] = ch;
adamc@821 2760 r[1] = 0;
adamc@821 2761 return r;
adamc@821 2762 }
adamc@821 2763
adamc@311 2764 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311 2765 if (b == uw_Basis_False)
adamc@285 2766 return "False";
adamc@285 2767 else
adamc@285 2768 return "True";
adamc@285 2769 }
adamc@288 2770
adam@1359 2771 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352 2772 size_t len;
adam@1352 2773 char *r;
adam@1392 2774 struct tm stm = {};
adam@1392 2775 stm.tm_isdst = -1;
adam@1352 2776
adam@1365 2777 if (localtime_r(&t.seconds, &stm)) {
adam@1352 2778 uw_check_heap(ctx, TIMES_MAX);
adam@1352 2779 r = ctx->heap.front;
adam@1352 2780 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352 2781 ctx->heap.front += len+1;
adam@1352 2782 return r;
adam@1352 2783 } else
adam@1352 2784 return "<Invalid time>";
adam@1352 2785 }
adam@1352 2786
adam@1629 2787 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629 2788 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629 2789 }
adam@1629 2790
adamc@311 2791 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288 2792 char *endptr;
adamc@311 2793 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288 2794
adamc@288 2795 if (*s != '\0' && *endptr == '\0') {
adamc@311 2796 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288 2797 *r = n;
adamc@288 2798 return r;
adamc@288 2799 } else
adamc@288 2800 return NULL;
adamc@288 2801 }
adamc@289 2802
adamc@311 2803 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289 2804 char *endptr;
adamc@311 2805 uw_Basis_float n = strtod(s, &endptr);
adamc@289 2806
adamc@289 2807 if (*s != '\0' && *endptr == '\0') {
adamc@311 2808 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289 2809 *r = n;
adamc@289 2810 return r;
adamc@289 2811 } else
adamc@289 2812 return NULL;
adamc@289 2813 }
adamc@289 2814
adamc@821 2815 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821 2816 if (s[0] == 0) {
adamc@821 2817 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821 2818 r[0] = 0;
adamc@821 2819 return r;
adamc@821 2820 } else if (s[1] != 0)
adamc@821 2821 return NULL;
adamc@821 2822 else {
adamc@821 2823 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821 2824 r[0] = s[0];
adamc@821 2825 return r;
adamc@821 2826 }
adamc@821 2827 }
adamc@821 2828
adamc@311 2829 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311 2830 static uw_Basis_bool true = uw_Basis_True;
adamc@311 2831 static uw_Basis_bool false = uw_Basis_False;
adamc@289 2832
adamc@289 2833 if (!strcasecmp (s, "True"))
adamc@289 2834 return &true;
adamc@289 2835 else if (!strcasecmp (s, "False"))
adamc@289 2836 return &false;
adamc@289 2837 else
adamc@289 2838 return NULL;
adamc@289 2839 }
adamc@292 2840
adamc@436 2841 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438 2842 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adam@1374 2843 struct tm stm = {};
adam@1392 2844 stm.tm_isdst = -1;
adamc@436 2845
adamc@439 2846 if (dot) {
adamc@439 2847 *dot = 0;
adamc@439 2848 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439 2849 *dot = '.';
adamc@439 2850 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365 2851 r->seconds = mktime(&stm);
adam@1365 2852 r->microseconds = 0;
adamc@439 2853 return r;
adamc@439 2854 }
adamc@439 2855 else {
adamc@439 2856 *dot = '.';
adamc@439 2857 return NULL;
adamc@439 2858 }
adamc@436 2859 }
adamc@439 2860 else {
adamc@439 2861 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439 2862 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365 2863 r->seconds = mktime(&stm);
adam@1365 2864 r->microseconds = 0;
adamc@439 2865 return r;
adamc@439 2866 }
adamc@439 2867 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439 2868 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365 2869 r->seconds = mktime(&stm);
adam@1365 2870 r->microseconds = 0;
adamc@439 2871 return r;
adam@1632 2872 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632 2873 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632 2874 r->seconds = mktime(&stm);
adam@1632 2875 r->microseconds = 0;
adam@1632 2876 return r;
adamc@439 2877 }
adamc@439 2878 else
adamc@439 2879 return NULL;
adamc@439 2880 }
adamc@436 2881 }
adamc@436 2882
adam@1352 2883 uw_Basis_time *uw_Basis_stringToTimef(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352 2884 char *end = strchr(s, 0);
adam@1374 2885 struct tm stm = {};
adam@1392 2886 stm.tm_isdst = -1;
adam@1352 2887
adam@1352 2888 if (strptime(s, fmt, &stm) == end) {
adam@1352 2889 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365 2890 r->seconds = mktime(&stm);
adam@1365 2891 r->microseconds = 0;
adam@1352 2892 return r;
adam@1352 2893 }
adam@1352 2894 else
adam@1352 2895 return NULL;
adam@1352 2896 }
adam@1352 2897
adamc@311 2898 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292 2899 char *endptr;
adamc@311 2900 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292 2901
adamc@292 2902 if (*s != '\0' && *endptr == '\0')
adamc@292 2903 return n;
adamc@292 2904 else
adam@1444 2905 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292 2906 }
adamc@293 2907
adamc@682 2908 #include <errno.h>
adamc@682 2909
adamc@678 2910 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682 2911 unsigned long long n;
adamc@682 2912
adamc@682 2913 if (sscanf(s, "%llu", &n) < 1)
adam@1444 2914 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682 2915 else {
adamc@682 2916 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682 2917 return ch;
adamc@682 2918 }
adamc@682 2919 }
adamc@682 2920
adamc@682 2921 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678 2922 char *endptr;
adamc@682 2923 unsigned long n = strtoul(s, &endptr, 10);
adamc@678 2924
adamc@678 2925 if (*s != '\0' && *endptr == '\0')
adamc@678 2926 return n;
adamc@678 2927 else
adam@1444 2928 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678 2929 }
adamc@678 2930
adamc@311 2931 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293 2932 char *endptr;
adamc@311 2933 uw_Basis_float n = strtod(s, &endptr);
adamc@293 2934
adamc@293 2935 if (*s != '\0' && *endptr == '\0')
adamc@293 2936 return n;
adamc@293 2937 else
adam@1444 2938 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293 2939 }
adamc@293 2940
adamc@821 2941 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821 2942 if (s[0] == 0)
adamc@821 2943 return 0;
adamc@821 2944 else if (s[1] != 0)
adam@1444 2945 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821 2946 else
adamc@821 2947 return s[0];
adamc@821 2948 }
adamc@821 2949
adamc@311 2950 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296 2951 if (!strcasecmp(s, "T") || !strcasecmp (s, "True"))
adamc@311 2952 return uw_Basis_True;
adamc@296 2953 else if (!strcasecmp(s, "F") || !strcasecmp (s, "False"))
adamc@311 2954 return uw_Basis_False;
adamc@293 2955 else
adam@1444 2956 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293 2957 }
adamc@436 2958
adam@1352 2959 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352 2960 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adam@1352 2961 struct tm stm = {};
adam@1392 2962 stm.tm_isdst = -1;
adam@1352 2963
adam@1352 2964 if (dot) {
adam@1352 2965 *dot = 0;
adam@1352 2966 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352 2967 *dot = '.';
adam@1410 2968 char usec[] = "000000";
adam@1410 2969 int len = strlen(dot+1);
adam@1410 2970 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410 2971 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365 2972 return r;
adam@1352 2973 }
adam@1352 2974 else {
adam@1352 2975 *dot = '.';
adam@1444 2976 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352 2977 }
adam@1352 2978 }
adam@1352 2979 else {
adam@1352 2980 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365 2981 uw_Basis_time r = { mktime(&stm) };
adam@1365 2982 return r;
adam@1352 2983 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365 2984 uw_Basis_time r = { mktime(&stm) };
adam@1365 2985 return r;
adam@1352 2986 } else
adam@1444 2987 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352 2988 }
adam@1352 2989 }
adam@1352 2990
adamc@436 2991 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438 2992 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adamc@436 2993 struct tm stm = {};
adam@1392 2994 stm.tm_isdst = -1;
adamc@436 2995
adamc@438 2996 if (dot) {
adamc@438 2997 *dot = 0;
adamc@438 2998 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438 2999 *dot = '.';
adam@1365 3000 {
adam@1365 3001 uw_Basis_time r = { mktime(&stm) };
adam@1365 3002 return r;
adam@1365 3003 }
adamc@438 3004 }
adamc@438 3005 else {
adamc@438 3006 *dot = '.';
adam@1444 3007 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438 3008 }
adamc@438 3009 }
adamc@438 3010 else {
adam@1365 3011 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365 3012 uw_Basis_time r = { mktime(&stm) };
adam@1365 3013 return r;
adam@1365 3014 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365 3015 uw_Basis_time r = { mktime(&stm) };
adam@1365 3016 return r;
adam@1632 3017 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632 3018 uw_Basis_time r = { mktime(&stm) };
adam@1632 3019 return r;
adam@1365 3020 } else
adam@1444 3021 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438 3022 }
adamc@436 3023 }
adamc@457 3024
adam@1352 3025 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352 3026 char *end = strchr(s, 0);
adamc@939 3027 struct tm stm = {};
adam@1392 3028 stm.tm_isdst = -1;
adamc@939 3029
adam@1365 3030 if (strptime(s, fmt, &stm) == end) {
adam@1365 3031 uw_Basis_time r = { mktime(&stm) };
adam@1365 3032 return r;
adam@1365 3033 } else
adam@1444 3034 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939 3035 }
adamc@939 3036
adamc@742 3037 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742 3038 char *r = ctx->heap.front;
adamc@742 3039 uw_Basis_blob b = {len, r};
adamc@742 3040
adamc@742 3041 uw_check_heap(ctx, len);
adamc@742 3042
adamc@742 3043 while (*s) {
adamc@742 3044 if (s[0] == '\\') {
adamc@742 3045 if (s[1] == '\\') {
adamc@742 3046 *r++ = '\\';
adamc@742 3047 s += 2;
adamc@1153 3048 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adamc@742 3049 *r++ = (s[1] - '0') * 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742 3050 s += 4;
adamc@742 3051 }
adamc@742 3052 else {
adamc@742 3053 *r++ = '\\';
adamc@742 3054 ++s;
adamc@742 3055 }
adamc@742 3056 } else {
adamc@742 3057 *r++ = s[0];
adamc@742 3058 ++s;
adamc@742 3059 }
adamc@742 3060 }
adamc@742 3061
adamc@742 3062 b.size = r - ctx->heap.front;
adamc@742 3063 ctx->heap.front = r;
adamc@742 3064 return b;
adamc@742 3065 }
adamc@742 3066
adam@1402 3067 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052 3068
adamc@463 3069 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463 3070 int len = strlen(c);
adamc@854 3071 char *p = ctx->outHeaders.start;
adamc@474 3072
adamc@1134 3073 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474 3074 char *p2;
adamc@474 3075 p += 13;
adamc@474 3076 p2 = strchr(p, '=');
adamc@474 3077
adamc@474 3078 if (p2) {
adamc@474 3079 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474 3080
adamc@474 3081 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052 3082 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052 3083 return NULL;
adamc@1052 3084 else {
adamc@1052 3085 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052 3086 memcpy(ret, p2+1, sz);
adamc@1052 3087 ret[sz] = 0;
adamc@1052 3088 return ret;
adamc@1052 3089 }
adamc@474 3090 }
adamc@474 3091 }
adamc@474 3092 }
adamc@463 3093
adamc@1134 3094 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051 3095 char *p2;
adamc@1051 3096
adamc@854 3097 while (1) {
adamc@1051 3098 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134 3099 if ((p2 = strchr(p, ';'))) {
adamc@1051 3100 size_t n = p2 - (p + len);
adamc@1051 3101 char *r = uw_malloc(ctx, n);
adamc@1051 3102 memcpy(r, p + 1 + len, n-1);
adamc@1051 3103 r[n-1] = 0;
adamc@1051 3104 return r;
adamc@1051 3105 } else
adamc@1051 3106 return p + 1 + len;
adamc@1134 3107 } else if ((p = strchr(p, ';')))
adamc@854 3108 p += 2;
adamc@463 3109 else
adamc@463 3110 return NULL;
adamc@463 3111 }
adamc@463 3112 }
adamc@792 3113
adamc@792 3114 return NULL;
adamc@457 3115 }
adamc@462 3116
adam@1877 3117 static void set_cookie(uw_context ctx) {
adam@1877 3118 if (ctx->usedSig)
adam@1877 3119 ctx->needsResig = 1;
adam@1877 3120 }
adam@1877 3121
adamc@1050 3122 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 3123 uw_write_header(ctx, "Set-Cookie: ");
adamc@462 3124 uw_write_header(ctx, c);
adamc@462 3125 uw_write_header(ctx, "=");
adamc@462 3126 uw_write_header(ctx, v);
adamc@466 3127 uw_write_header(ctx, "; path=");
adamc@466 3128 uw_write_header(ctx, prefix);
adamc@1050 3129 if (expires) {
adamc@1050 3130 char formatted[30];
adam@1392 3131 struct tm tm = {};
adam@1392 3132 tm.tm_isdst = -1;
adamc@1050 3133
adam@1365 3134 gmtime_r(&expires->seconds, &tm);
adamc@1050 3135
adamc@1050 3136 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050 3137
adamc@1050 3138 uw_write_header(ctx, "; expires=");
adamc@1050 3139 uw_write_header(ctx, formatted);
adamc@1050 3140 }
adamc@1050 3141 if (secure)
adamc@1050 3142 uw_write_header(ctx, "; secure");
adamc@462 3143 uw_write_header(ctx, "\r\n");
adam@1877 3144 set_cookie(ctx);
adamc@462 3145
adamc@462 3146 return uw_unit_v;
adamc@462 3147 }
adamc@667 3148
adamc@1050 3149 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050 3150 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050 3151 uw_write_header(ctx, c);
adamc@1050 3152 uw_write_header(ctx, "=; path=");
adamc@1050 3153 uw_write_header(ctx, prefix);
adamc@1052 3154 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877 3155 set_cookie(ctx);
adamc@1050 3156
adamc@1050 3157 return uw_unit_v;
adamc@1050 3158 }
adamc@1050 3159
adamc@1113 3160 size_t uw_deltas_max = SIZE_MAX;
adamc@1113 3161
adamc@682 3162 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682 3163 unsigned i;
adamc@682 3164 delta *d;
adamc@671 3165
adamc@682 3166 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682 3167 if (ctx->deltas[i].client == client)
adamc@682 3168 return &ctx->deltas[i];
adamc@671 3169
adamc@682 3170 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113 3171 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113 3172 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113 3173
adamc@682 3174 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369 3175 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682 3176 }
adamc@671 3177
adamc@682 3178 d = &ctx->deltas[ctx->used_deltas++];
adamc@682 3179 d->client = client;
adam@1369 3180 uw_buffer_reset(&d->msgs);
adamc@682 3181 return d;
adamc@671 3182 }
adamc@671 3183
adamc@668 3184 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682 3185 if (ctx->client == NULL)
adamc@682 3186 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671 3187
adamc@682 3188 return new_channel(ctx->client);
adamc@668 3189 }
adamc@668 3190
adamc@668 3191 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682 3192 delta *d = allocate_delta(ctx, chn.cli);
adamc@682 3193 size_t len;
adamc@682 3194 int preLen;
adamc@682 3195 char pre[INTS_MAX + 2];
adamc@668 3196
adamc@682 3197 len = strlen(msg);
adamc@682 3198
adamc@682 3199 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682 3200
adam@1369 3201 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369 3202 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369 3203 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671 3204
adamc@671 3205 return uw_unit_v;
adamc@668 3206 }
adamc@671 3207
adam@1327 3208 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131 3209 int i;
adamc@1131 3210 cleanup *cl;
adamc@1131 3211
adamc@1131 3212 if (ctx->client)
adamc@1131 3213 release_client(ctx->client);
adamc@1131 3214
adamc@1131 3215 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131 3216 cl->func(cl->arg);
adamc@1131 3217
adamc@1131 3218 ctx->cleanup_front = ctx->cleanup;
adamc@1131 3219
adamc@1131 3220 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131 3221 if (ctx->transactionals[i].rollback != NULL)
adamc@1131 3222 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131 3223
adamc@1131 3224 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131 3225 if (ctx->transactionals[i].free)
adam@1327 3226 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131 3227
adam@1931 3228 return (ctx->app && ctx->transaction_started) ? ctx->app->db_rollback(ctx) : 0;
adamc@1131 3229 }
adamc@1131 3230
adam@1728 3231 static const char begin_xhtml[] = "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" lang=\"en\">";
adam@1728 3232
adam@1877 3233 extern int uw_hash_blocksize;
adam@1877 3234
adam@1877 3235 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877 3236
adam@1877 3237 static char *find_sig(char *haystack) {
adam@1877 3238 int i;
adam@1877 3239 char *s = strstr(haystack, sig_intro);
adam@1877 3240
adam@1877 3241 if (!s || strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877 3242 return NULL;
adam@1877 3243
adam@1877 3244 s += sizeof sig_intro - 1;
adam@1877 3245
adam@1877 3246 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877 3247 if (!isxdigit((int)s[i]))
adam@1877 3248 return NULL;
adam@1877 3249
adam@1877 3250 if (s[i] != '"')
adam@1877 3251 return NULL;
adam@1877 3252
adam@1877 3253 return s;
adam@1877 3254 }
adam@1877 3255
adamc@671 3256 void uw_commit(uw_context ctx) {
adamc@1104 3257 int i;
adam@1877 3258 char *sig;
adamc@1104 3259
adamc@1131 3260 if (uw_has_error(ctx)) {
adam@1327 3261 uw_rollback(ctx, 0);
adamc@1131 3262 return;
adamc@1131 3263 }
adamc@1131 3264
adamc@1104 3265 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771 3266 if (ctx->transactionals[i].rollback != NULL)
adamc@1131 3267 if (ctx->transactionals[i].commit) {
adamc@1083 3268 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131 3269 if (uw_has_error(ctx)) {
adam@1327 3270 uw_rollback(ctx, 0);
adamc@1131 3271 return;
adamc@1131 3272 }
adamc@1131 3273 }
adamc@771 3274
adamc@1104 3275 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771 3276 if (ctx->transactionals[i].rollback == NULL)
adamc@1131 3277 if (ctx->transactionals[i].commit) {
adamc@1083 3278 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131 3279 if (uw_has_error(ctx)) {
adam@1327 3280 uw_rollback(ctx, 0);
adamc@1131 3281 return;
adamc@1131 3282 }
adamc@1131 3283 }
adamc@1131 3284
adam@1931 3285 if (ctx->transaction_started && ctx->app->db_commit(ctx)) {
adamc@1131 3286 uw_set_error_message(ctx, "Error running SQL COMMIT");
adamc@1131 3287 return;
adamc@1131 3288 }
adamc@682 3289
adamc@682 3290 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682 3291 delta *d = &ctx->deltas[i];
adamc@682 3292 client *c = find_client(d->client);
adamc@682 3293
adam@1551 3294 assert (c != NULL);
adam@1551 3295 assert(c->mode == USED);
adamc@682 3296
adam@1447 3297 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682 3298 }
adamc@682 3299
adamc@682 3300 if (ctx->client)
adamc@685 3301 release_client(ctx->client);
adamc@771 3302
adamc@1104 3303 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083 3304 if (ctx->transactionals[i].free)
adam@1327 3305 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916 3306
vshabanoff@1726 3307 uw_check(ctx, 1);
vshabanoff@1726 3308 *ctx->page.front = 0;
adam@1413 3309
adam@1728 3310 if (!ctx->returning_indirectly && !strncmp(ctx->page.start, begin_xhtml, sizeof begin_xhtml - 1)) {
adam@1728 3311 char *s;
adam@1728 3312
adam@1728 3313 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1728 3314 s = ctx->page.start + sizeof begin_xhtml - 1;
adam@1728 3315 s = strchr(s, '<');
adam@1728 3316 if (s == NULL) {
adam@1728 3317 // Weird. Document has no tags!
adam@1728 3318
adam@1728 3319 uw_write(ctx, "<head></head><body></body>");
adam@1728 3320 uw_check(ctx, 1);
adam@1728 3321 *ctx->page.front = 0;
adam@1728 3322 } else if (!strncmp(s, "<head>", 6)) {
adam@1728 3323 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728 3324
adam@1729 3325 // Any freeform JavaScript to include?
adam@1729 3326 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729 3327 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729 3328 size_t lenP = lenH + 40 + len;
adam@1729 3329 char *start = s + 6, *oldPage = ctx->page.start;
adam@1729 3330
adam@1729 3331 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729 3332 start += ctx->page.start - oldPage;
adam@1729 3333 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729 3334 ctx->page.front += lenP;
adam@1729 3335 memcpy(start, ctx->script_header, lenH);
adam@1729 3336 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729 3337 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729 3338 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729 3339 } else {
adam@1729 3340 size_t lenH = strlen(ctx->script_header);
adam@1729 3341 char *start = s + 6, *oldPage = ctx->page.start;
adam@1729 3342
adam@1729 3343 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729 3344 start += ctx->page.start - oldPage;
adam@1729 3345 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729 3346 ctx->page.front += lenH;
adam@1729 3347 memcpy(start, ctx->script_header, lenH);
adam@1729 3348 }
adam@1728 3349 } else {
adam@1728 3350 // No <head>. At this point, add it, with <script> tags inside.
adam@1728 3351
adam@1729 3352 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729 3353 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729 3354 size_t lenP = lenH + 53 + len;
adam@1729 3355 char *start = s, *oldPage = ctx->page.start;
adam@1729 3356
adam@1729 3357 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729 3358 start += ctx->page.start - oldPage;
adam@1729 3359 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729 3360 ctx->page.front += lenP;
adam@1729 3361 memcpy(start, "<head>", 6);
adam@1729 3362 memcpy(start + 6, ctx->script_header, lenH);
adam@1729 3363 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729 3364 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729 3365 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729 3366 } else {
adam@1729 3367 size_t lenH = strlen(ctx->script_header);
adam@1729 3368 size_t lenP = lenH + 13;
adam@1729 3369 char *start = s, *oldPage = ctx->page.start;
adam@1729 3370
adam@1729 3371 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729 3372 start += ctx->page.start - oldPage;
adam@1729 3373 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729 3374 ctx->page.front += lenP;
adam@1729 3375 memcpy(start, "<head>", 6);
adam@1729 3376 memcpy(start + 6, ctx->script_header, lenH);
adam@1729 3377 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729 3378 }
adamc@916 3379 }
adamc@916 3380 }
adam@1877 3381
adam@1877 3382 if (ctx->needsResig) {
adam@1877 3383 sig = find_sig(ctx->page.start);
adam@1877 3384 if (sig) {
adam@1877 3385 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877 3386
adam@1877 3387 do {
adam@1877 3388 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877 3389 sig = find_sig(sig);
adam@1877 3390 } while (sig);
adam@1877 3391 }
adam@1877 3392 }
adamc@671 3393 }
adamc@671 3394
adamc@683 3395
adamc@1113 3396 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113 3397
adamc@771 3398 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327 3399 uw_callback_with_retry free) {
adamc@771 3400 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113 3401 if (ctx->used_transactionals+1 > uw_transactionals_max)
adamc@1113 3402 uw_error(ctx, FATAL, "Exceeded limit on number of transactionals");
adamc@1084 3403 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771 3404 ++ctx->n_transactionals;
adamc@771 3405 }
adamc@771 3406
adamc@771 3407 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771 3408 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771 3409 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771 3410 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771 3411 }
adamc@771 3412
adamc@683 3413
adamc@683 3414 // "Garbage collection"
adamc@683 3415
adamc@1121 3416 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121 3417 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121 3418
adamc@1121 3419 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683 3420 int r = setjmp(ctx->jmp_buf);
adamc@683 3421
adamc@1121 3422 if (r == 0)
adamc@1121 3423 uw_do_expunge(ctx, cli, data);
adamc@1121 3424 else
adamc@1121 3425 ctx->app->db_rollback(ctx);
adamc@1121 3426
adamc@1121 3427 uw_post_expunge(ctx, data);
adamc@683 3428
adamc@683 3429 return r;
adamc@683 3430 }
adamc@683 3431
adamc@683 3432 void uw_prune_clients(uw_context ctx) {
adamc@683 3433 client *c, *next, *prev = NULL;
adamc@683 3434 time_t cutoff;
adamc@683 3435
adamc@1094 3436 cutoff = time(NULL) - ctx->app->timeout;
adamc@683 3437
adamc@683 3438 pthread_mutex_lock(&clients_mutex);
adam@1707 3439 pruning_thread = pthread_self();
adam@1707 3440 pruning_thread_initialized = 1;
adamc@683 3441
adamc@683 3442 for (c = clients_used; c; c = next) {
adamc@683 3443 next = c->next;
adamc@683 3444 pthread_mutex_lock(&c->lock);
adamc@685 3445 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683 3446 failure_kind fk = UNLIMITED_RETRY;
adamc@683 3447 if (prev)
adamc@683 3448 prev->next = next;
adamc@683 3449 else
adamc@683 3450 clients_used = next;
adamc@684 3451 uw_reset(ctx);
adamc@683 3452 while (fk == UNLIMITED_RETRY) {
adamc@1121 3453 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121 3454 if (fk == UNLIMITED_RETRY)
adamc@684 3455 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683 3456 }
adamc@684 3457 if (fk == SUCCESS)
adamc@684 3458 free_client(c);
adamc@1121 3459 else
adamc@856 3460 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683 3461 }
adamc@683 3462 else
adamc@683 3463 prev = c;
adamc@683 3464 pthread_mutex_unlock(&c->lock);
adamc@683 3465 }
adamc@683 3466
adamc@683 3467 pthread_mutex_unlock(&clients_mutex);
adamc@683 3468 }
adamc@687 3469
adamc@687 3470 failure_kind uw_initialize(uw_context ctx) {
adamc@687 3471 int r = setjmp(ctx->jmp_buf);
adamc@687 3472
adamc@687 3473 if (r == 0) {
adam@1936 3474 uw_ensure_transaction(ctx);
adamc@1094 3475 ctx->app->initializer(ctx);
adamc@1094 3476 if (ctx->app->db_commit(ctx))
adamc@687 3477 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687 3478 }
adamc@687 3479
adamc@687 3480 return r;
adamc@687 3481 }
adamc@717 3482
adamc@1065 3483 static int url_bad(uw_Basis_string s) {
adamc@1065 3484 for (; *s; ++s)
adamc@1153 3485 if (!isgraph((int)*s))
adamc@1065 3486 return 1;
adamc@1065 3487
adamc@1065 3488 return 0;
adamc@1065 3489 }
adamc@1065 3490
adamc@717 3491 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065 3492 if (url_bad(s))
adamc@1065 3493 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094 3494 if (ctx->app->check_url(s))
adamc@770 3495 return s;
adamc@770 3496 else
adamc@770 3497 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717 3498 }
adamc@734 3499
adamc@770 3500 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065 3501 if (url_bad(s))
adamc@1065 3502 return NULL;
adamc@1094 3503 if (ctx->app->check_url(s))
adamc@770 3504 return s;
adamc@770 3505 else
adamc@770 3506 return NULL;
adamc@770 3507 }
adamc@770 3508
adam@1465 3509 static int mime_format(const char *s) {
adamc@770 3510 for (; *s; ++s)
adamc@1153 3511 if (!isalnum((int)*s) && *s != '/' && *s != '-' && *s != '.')
adamc@770 3512 return 0;
adamc@770 3513
adamc@770 3514 return 1;
adamc@770 3515 }
adamc@770 3516
adamc@741 3517 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770 3518 if (!mime_format(s))
adamc@770 3519 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770 3520
adamc@1094 3521 if (ctx->app->check_mime(s))
adamc@770 3522 return s;
adamc@770 3523 else
adamc@770 3524 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770 3525 }
adamc@770 3526
adamc@770 3527 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770 3528 if (!mime_format(s))
adamc@770 3529 return NULL;
adamc@770 3530
adamc@1094 3531 if (ctx->app->check_mime(s))
adamc@770 3532 return s;
adamc@770 3533 else
adamc@770 3534 return NULL;
adamc@741 3535 }
adamc@741 3536
adam@1465 3537 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465 3538 if (!mime_format(s))
adam@1465 3539 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465 3540
adam@1465 3541 if (ctx->app->check_requestHeader(s))
adam@1465 3542 return s;
adam@1465 3543 else
adam@1465 3544 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465 3545 }
adam@1465 3546
adam@1465 3547 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465 3548 if (!mime_format(s))
adam@1465 3549 return NULL;
adam@1465 3550
adam@1465 3551 if (ctx->app->check_requestHeader(s))
adam@1465 3552 return s;
adam@1465 3553 else
adam@1465 3554 return NULL;
adam@1465 3555 }
adam@1465 3556
adam@1465 3557 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465 3558 if (!mime_format(s))
adam@1465 3559 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465 3560
adam@1465 3561 if (ctx->app->check_responseHeader(s))
adam@1465 3562 return s;
adam@1465 3563 else
adam@1465 3564 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465 3565 }
adam@1465 3566
adam@1799 3567 static int envVar_format(const char *s) {
adam@1799 3568 for (; *s; ++s)
adam@1799 3569 if (!isalnum((int)*s) && *s != '_' && *s != '.')
adam@1799 3570 return 0;
adam@1799 3571
adam@1799 3572 return 1;
adam@1799 3573 }
adam@1799 3574
adam@1465 3575 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799 3576 if (!envVar_format(s))
adam@1465 3577 return NULL;
adam@1465 3578
adam@1465 3579 if (ctx->app->check_responseHeader(s))
adam@1465 3580 return s;
adam@1465 3581 else
adam@1465 3582 return NULL;
adam@1465 3583 }
adam@1465 3584
adam@1799 3585 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799 3586 if (!envVar_format(s))
adam@1799 3587 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799 3588
adam@1799 3589 if (ctx->app->check_envVar(s))
adam@1799 3590 return s;
adam@1799 3591 else
adam@1799 3592 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799 3593 }
adam@1799 3594
adam@1799 3595 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799 3596 if (!mime_format(s))
adam@1799 3597 return NULL;
adam@1799 3598
adam@1799 3599 if (ctx->app->check_envVar(s))
adam@1799 3600 return s;
adam@1799 3601 else
adam@1799 3602 return NULL;
adam@1799 3603 }
adam@1799 3604
adam@1465 3605 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465 3606 return uw_Basis_requestHeader(ctx, name);
adam@1465 3607 }
adam@1465 3608
adam@1465 3609 static int mime_value_format(const char *s) {
adam@1465 3610 for (; *s; ++s)
adam@1465 3611 if (*s == '\r' || *s == '\n')
adam@1465 3612 return 0;
adam@1465 3613
adam@1465 3614 return 1;
adam@1465 3615 }
adam@1465 3616
adam@1465 3617 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465 3618 if (!mime_value_format(value))
adam@1465 3619 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465 3620
adam@1465 3621 uw_write_header(ctx, name);
adam@1465 3622 uw_write_header(ctx, ": ");
adam@1465 3623 uw_write_header(ctx, value);
adam@1465 3624 uw_write_header(ctx, "\r\n");
adam@1465 3625
adam@1465 3626 return uw_unit_v;
adam@1465 3627 }
adam@1465 3628
adam@1799 3629 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1799 3630 return ctx->get_env(ctx->get_env_data, name);
adam@1799 3631 }
adam@1799 3632
adamc@734 3633 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734 3634 return s ? s : "";
adamc@734 3635 }
adamc@734 3636
adamc@734 3637 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734 3638 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734 3639 int i;
adamc@734 3640
adamc@734 3641 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734 3642 sprintf(&r[2*i], "%.02X", ((unsigned char *)sig)[i]);
adamc@734 3643
adamc@734 3644 return r;
adamc@734 3645 }
adamc@734 3646
adam@1512 3647 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512 3648 * optimizations that would enable timing attacks. See:
adam@1512 3649 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512 3650 */
adam@1512 3651 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512 3652 int i, x = 0, len1 = strlen(s1);
adam@1512 3653
adam@1512 3654 if (len1 != strlen(s2)) return 0;
adam@1512 3655
adam@1512 3656 for (i = 0; i < len1; ++i) {
adam@1512 3657 __asm__ __volatile__ ("");
adam@1512 3658 x |= s1[i] ^ s2[i];
adam@1512 3659 }
adam@1512 3660
adam@1512 3661 return x == 0;
adam@1512 3662 }
adam@1512 3663
adamc@734 3664 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877 3665 ctx->usedSig = 1;
adamc@1094 3666 return ctx->app->cookie_sig(ctx);
adamc@734 3667 }
adamc@737 3668
adamc@737 3669 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737 3670 return f.name;
adamc@737 3671 }
adamc@737 3672
adamc@740 3673 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740 3674 return f.type;
adamc@740 3675 }
adamc@740 3676
adamc@745 3677 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745 3678 return b.size;
adamc@745 3679 }
adamc@745 3680
adamc@1119 3681 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119 3682 uw_Basis_blob b = {strlen(s), s};
adamc@1119 3683
adamc@1119 3684 return b;
adamc@1119 3685 }
adamc@1119 3686
adamc@737 3687 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737 3688 return f.data;
adamc@737 3689 }
adamc@741 3690
adam@1347 3691 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347 3692 return pb.type;
adam@1347 3693 }
adam@1347 3694
adam@1347 3695 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347 3696 return pb.data;
adam@1347 3697 }
adam@1347 3698
adam@1471 3699 static char *old_headers(uw_context ctx) {
adam@1471 3700 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471 3701 return NULL;
adam@1471 3702 else {
adam@1471 3703 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471 3704
adam@1471 3705 if (s == NULL || strncasecmp(s+1, "Content-type: ", 14))
adam@1471 3706 return NULL;
adam@1471 3707 else {
adam@1471 3708 s = strchr(s+15, '\n');
adam@1471 3709 if (s == NULL)
adam@1471 3710 return NULL;
adam@1471 3711 else
adam@1471 3712 return uw_strdup(ctx, s+1);
adam@1471 3713 }
adam@1471 3714 }
adam@1471 3715 }
adam@1471 3716
adamc@741 3717 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741 3718 cleanup *cl;
adamc@741 3719 int len;
adam@1471 3720 char *oldh;
adamc@741 3721
adam@1451 3722 if (!ctx->allowed_to_return_indirectly)
adam@1451 3723 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451 3724
adamc@1065 3725 ctx->returning_indirectly = 1;
adam@1471 3726 oldh = old_headers(ctx);
adam@1369 3727 uw_buffer_reset(&ctx->outHeaders);
adam@1369 3728 uw_buffer_reset(&ctx->page);
adamc@741 3729
adamc@856 3730 uw_write_header(ctx, on_success);
adamc@856 3731 uw_write_header(ctx, "Content-Type: ");
adamc@741 3732 uw_write_header(ctx, mimeType);
adam@1934 3733 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369 3734 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134 3735 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741 3736 ctx->outHeaders.front += len;
adamc@1066 3737 uw_write_header(ctx, "\r\n");
adam@1471 3738 if (oldh) uw_write_header(ctx, oldh);
adamc@741 3739
adam@1369 3740 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741 3741
adamc@741 3742 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741 3743 cl->func(cl->arg);
adamc@741 3744
adamc@741 3745 ctx->cleanup_front = ctx->cleanup;
adamc@741 3746
adamc@1065 3747 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065 3748 }
adamc@1065 3749
adam@1932 3750 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932 3751 cleanup *cl;
adam@1932 3752 int len;
adam@1932 3753 char *oldh;
adam@1932 3754
adam@1932 3755 if (!ctx->allowed_to_return_indirectly)
adam@1932 3756 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932 3757
adam@1932 3758 ctx->returning_indirectly = 1;
adam@1932 3759 oldh = old_headers(ctx);
adam@1932 3760 uw_buffer_reset(&ctx->outHeaders);
adam@1932 3761
adam@1932 3762 uw_write_header(ctx, on_success);
adam@1932 3763 uw_write_header(ctx, "Content-Type: ");
adam@1932 3764 uw_write_header(ctx, mimeType);
adam@1934 3765 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932 3766 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932 3767 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932 3768 ctx->outHeaders.front += len;
adam@1932 3769 uw_write_header(ctx, "\r\n");
adam@1932 3770 if (oldh) uw_write_header(ctx, oldh);
adam@1932 3771
adam@1932 3772 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932 3773 cl->func(cl->arg);
adam@1932 3774
adam@1932 3775 ctx->cleanup_front = ctx->cleanup;
adam@1932 3776
adam@1932 3777 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932 3778 }
adam@1932 3779
adamc@1065 3780 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065 3781 cleanup *cl;
adamc@1066 3782 char *s;
adam@1471 3783 char *oldh;
adamc@1065 3784
adam@1451 3785 if (!ctx->allowed_to_return_indirectly)
adam@1451 3786 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451 3787
adamc@1065 3788 ctx->returning_indirectly = 1;
adam@1471 3789 oldh = old_headers(ctx);
adam@1369 3790 uw_buffer_reset(&ctx->page);
adam@1369 3791 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369 3792 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369 3793 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369 3794 uw_buffer_reset(&ctx->outHeaders);
adamc@1065 3795
adam@1409 3796 if (on_success[0])
adam@1409 3797 uw_write_header(ctx, on_redirect);
adam@1409 3798 else
adam@1409 3799 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409 3800 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066 3801 if (s) {
adamc@1066 3802 char *s2;
adam@1409 3803 if (s[0] == '\n') ++s;
adam@1409 3804 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066 3805 *s2 = 0;
adamc@1066 3806 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066 3807 uw_write_header(ctx, s);
adamc@1066 3808 uw_write_header(ctx, "\n");
adamc@1066 3809 }
adamc@1066 3810 }
adamc@1066 3811 }
adamc@1066 3812
adamc@1065 3813 uw_write_header(ctx, "Location: ");
adamc@1065 3814 uw_write_header(ctx, url);
adamc@1065 3815 uw_write_header(ctx, "\r\n\r\n");
adam@1471 3816 if (oldh) uw_write_header(ctx, oldh);
adamc@1065 3817
adamc@1065 3818 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065 3819 cl->func(cl->arg);
adamc@1065 3820
adamc@1065 3821 ctx->cleanup_front = ctx->cleanup;
adamc@1065 3822
adamc@1065 3823 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741 3824 }
adamc@874 3825
adamc@874 3826 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467 3827 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874 3828
adamc@874 3829 for (; *s; ++s) {
adamc@874 3830 if (s[0] == '\'') {
adamc@874 3831 *r++ = '\'';
adamc@874 3832 for (++s; *s; ++s) {
adamc@874 3833 if (s[0] == '\'') {
adamc@874 3834 *r++ = '\'';
adamc@874 3835 break;
adamc@874 3836 } else if (s[0] == '\\') {
adam@1467 3837 *r++ = '\\';
adam@1467 3838 *r++ = s[1];
adam@1467 3839 ++s;
adamc@874 3840 } else
adamc@874 3841 *r++ = s[0];
adamc@874 3842 }
adamc@874 3843 if (*s == 0) break;
adam@1467 3844 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467 3845 s += 3;
adamc@874 3846 else
adamc@874 3847 *r++ = s[0];
adamc@874 3848 }
adamc@874 3849
adam@1467 3850 *r = 0;
adam@1467 3851 return ret;
adamc@874 3852 }
adamc@874 3853
adamc@922 3854 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922 3855 va_list ap;
adamc@922 3856 size_t len = 1;
adamc@922 3857 char *s, *r, *s2;
adamc@922 3858
adamc@922 3859 va_start(ap, ctx);
adamc@922 3860 for (s = va_arg(ap, char*); s; s = va_arg(ap, char*))
adamc@922 3861 len += strlen(s);
adamc@922 3862 va_end(ap);
adamc@922 3863
adamc@922 3864 r = uw_malloc(ctx, len);
adamc@922 3865 va_start(ap, ctx);
adamc@922 3866 for (s2 = r, s = va_arg(ap, char*); s; s = va_arg(ap, char*))
adamc@922 3867 while (*s)
adamc@922 3868 *s2++ = *s++;
adamc@922 3869 va_end(ap);
adamc@922 3870 *s2 = 0;
adamc@922 3871
adamc@922 3872 return r;
adamc@922 3873 }
adamc@1006 3874
adam@1365 3875 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050 3876
adamc@1006 3877 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365 3878 uw_Basis_time r = { time(NULL) };
adam@1365 3879 return r;
adamc@1006 3880 }
adamc@1061 3881
adam@1369 3882 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369 3883 tm.seconds += n;
adam@1365 3884 return tm;
adamc@1138 3885 }
adamc@1138 3886
adam@1514 3887 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514 3888 return difftime(tm2.seconds, tm1.seconds);
adam@1514 3889 }
adam@1514 3890
adam@1685 3891 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685 3892 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685 3893 }
adam@1685 3894
adam@1685 3895 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685 3896 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685 3897 }
adam@1685 3898
adam@1514 3899 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514 3900 return tm.seconds;
adam@1514 3901 }
adam@1514 3902
adamc@1061 3903 void *uw_get_global(uw_context ctx, char *name) {
adamc@1061 3904 int i;
adamc@1061 3905
adamc@1061 3906 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061 3907 if (!strcmp(name, ctx->globals[i].name))
adamc@1061 3908 return ctx->globals[i].data;
adamc@1061 3909
adamc@1061 3910 return NULL;
adamc@1061 3911 }
adamc@1061 3912
adamc@1113 3913 size_t uw_globals_max = SIZE_MAX;
adamc@1113 3914
adamc@1061 3915 void uw_set_global(uw_context ctx, char *name, void *data, void (*free)(void*)) {
adamc@1061 3916 int i;
adamc@1061 3917
adamc@1061 3918 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061 3919 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089 3920 if (ctx->globals[i].free)
adamc@1061 3921 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061 3922 ctx->globals[i].data = data;
adamc@1061 3923 ctx->globals[i].free = free;
adamc@1061 3924 return;
adamc@1061 3925 }
adamc@1089 3926
adamc@1113 3927 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113 3928 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113 3929
adamc@1061 3930 ++ctx->n_globals;
adamc@1061 3931 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061 3932 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061 3933 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061 3934 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061 3935 }
adamc@1061 3936
adamc@1061 3937 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153 3938 return !!isalnum((int)c);
adamc@1061 3939 }
adamc@1061 3940
adamc@1061 3941 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153 3942 return !!isalpha((int)c);
adamc@1061 3943 }
adamc@1061 3944
adamc@1061 3945 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153 3946 return !!isblank((int)c);
adamc@1061 3947 }
adamc@1061 3948
adamc@1061 3949 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153 3950 return !!iscntrl((int)c);
adamc@1061 3951 }
adamc@1061 3952
adamc@1061 3953 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153 3954 return !!isdigit((int)c);
adamc@1061 3955 }
adamc@1061 3956
adamc@1061 3957 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153 3958 return !!isgraph((int)c);
adamc@1061 3959 }
adamc@1061 3960
adamc@1061 3961 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153 3962 return !!islower((int)c);
adamc@1061 3963 }
adamc@1061 3964
adamc@1061 3965 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153 3966 return !!isprint((int)c);
adamc@1061 3967 }
adamc@1061 3968
adamc@1061 3969 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153 3970 return !!ispunct((int)c);
adamc@1061 3971 }
adamc@1061 3972
adamc@1061 3973 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153 3974 return !!isspace((int)c);
adamc@1061 3975 }
adamc@1063 3976
adamc@1061 3977 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153 3978 return !!isupper((int)c);
adamc@1061 3979 }
adamc@1061 3980
adamc@1061 3981 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153 3982 return !!isxdigit((int)c);
adamc@1061 3983 }
adamc@1061 3984
adamc@1061 3985 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153 3986 return tolower((int)c);
adamc@1061 3987 }
adamc@1061 3988
adamc@1061 3989 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153 3990 return toupper((int)c);
adamc@1061 3991 }
adamc@1066 3992
adamc@1128 3993 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128 3994 return (unsigned char)c;
adamc@1128 3995 }
adamc@1128 3996
adamc@1128 3997 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128 3998 return n;
adamc@1128 3999 }
adamc@1128 4000
adamc@1066 4001 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066 4002 return ctx->current_url;
adamc@1066 4003 }
adamc@1066 4004
adamc@1066 4005 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066 4006 ctx->current_url = s;
adamc@1066 4007 }
adamc@1114 4008
adamc@1114 4009 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114 4010 ctx->deadline = n;
adamc@1114 4011 }
adamc@1114 4012
adamc@1114 4013 void uw_check_deadline(uw_context ctx) {
adamc@1114 4014 if (uw_time > ctx->deadline)
adamc@1114 4015 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114 4016 }
adamc@1115 4017
adamc@1115 4018 size_t uw_database_max = SIZE_MAX;
adamc@1120 4019
adam@1389 4020 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@1389 4021 fprintf(stderr, "%s\n", s);
adam@1389 4022 return 0;
adam@1389 4023 }
adam@1389 4024
adamc@1120 4025 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
adam@1334 4026 if (ctx->log_debug)
adam@1334 4027 ctx->log_debug(ctx->logger_data, "%s\n", s);
adam@1334 4028 else
adam@1334 4029 fprintf(stderr, "%s\n", s);
adamc@1120 4030 return uw_unit_v;
adamc@1120 4031 }
adamc@1250 4032
adam@1933 4033 static pthread_mutex_t rand_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@1933 4034
adamc@1250 4035 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@1486 4036 uw_Basis_int ret;
adam@1933 4037 pthread_mutex_lock(&rand_mutex);
adam@1486 4038 int r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@1933 4039 pthread_mutex_unlock(&rand_mutex);
adam@1486 4040
adam@1486 4041 if (r)
adam@1486 4042 return abs(ret);
adam@1486 4043 else
adam@1486 4044 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250 4045 }
adam@1347 4046
adam@1347 4047 void uw_noPostBody(uw_context ctx) {
adam@1347 4048 ctx->hasPostBody = 0;
adam@1347 4049 }
adam@1347 4050
adam@1347 4051 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347 4052 ctx->hasPostBody = 1;
adam@1347 4053 ctx->postBody = pb;
adam@1347 4054 }
adam@1347 4055
adam@1347 4056 int uw_hasPostBody(uw_context ctx) {
adam@1347 4057 return ctx->hasPostBody;
adam@1347 4058 }
adam@1347 4059
adam@1386 4060 void uw_isPost(uw_context ctx) {
adam@1386 4061 ctx->isPost = 1;
adam@1386 4062 }
adam@1386 4063
adam@1386 4064 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386 4065 return ctx->isPost;
adam@1386 4066 }
adam@1386 4067
adam@1485 4068 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485 4069 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485 4070 }
adam@1485 4071
adam@1370 4072 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370 4073 ctx->queryString = s;
adam@1370 4074 }
adam@1370 4075
adam@1370 4076 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370 4077 return ctx->queryString;
adam@1370 4078 }
adam@1370 4079
adam@1347 4080 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347 4081 if (ctx->hasPostBody)
adam@1347 4082 return ctx->postBody;
adam@1347 4083 else
adam@1347 4084 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347 4085 }
adam@1349 4086
adam@1349 4087 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349 4088 int r = setjmp(ctx->jmp_buf);
adam@1349 4089
adam@1349 4090 if (r == 0) {
adam@1936 4091 uw_ensure_transaction(ctx);
adam@1418 4092
adam@1349 4093 callback(ctx);
adam@1349 4094 }
adam@1349 4095
adam@1349 4096 return r;
adam@1349 4097 }
adam@1360 4098
adam@1360 4099 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397 4100 char buf[14];
adam@1397 4101 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360 4102 }
adam@1365 4103
adam@1365 4104 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365 4105 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365 4106 }
adam@1365 4107
adam@1365 4108 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365 4109 return !!(t1.seconds < t2.seconds || t1.microseconds < t2.microseconds);
adam@1365 4110 }
adam@1365 4111
adam@1365 4112 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365 4113 return !!(uw_Basis_eq_time(ctx, t1, t2) || uw_Basis_lt_time(ctx, t1, t2));
adam@1365 4114 }
adam@1365 4115
adam@1372 4116 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374 4117 struct tm stm = {};
adam@1375 4118 char *end = strchr(s, 0);
adam@1449 4119 stm.tm_isdst = -1;
adam@1375 4120
adam@1632 4121 if (strptime(s, TIME_FMT_PG, &stm) == end || strptime(s, TIME_FMT, &stm) == end || strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373 4122 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375 4123
kkallio@1448 4124 r->seconds = timegm(&stm);
adam@1373 4125 r->microseconds = 0;
adam@1373 4126
adam@1373 4127 return r;
adam@1374 4128 }
adam@1374 4129 else
adam@1373 4130 return NULL;
adam@1372 4131 }
adam@1407 4132
adam@1407 4133 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407 4134 int r = setjmp(ctx->jmp_buf);
adam@1407 4135
adam@1407 4136 if (ctx->app->on_error) {
adam@1407 4137 if (r == 0) {
adam@1936 4138 uw_ensure_transaction(ctx);
adam@1407 4139
adam@1409 4140 uw_buffer_reset(&ctx->outHeaders);
adam@1409 4141 if (on_success[0])
adam@1409 4142 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409 4143 else
adam@1409 4144 uw_write_header(ctx, "Status: ");
adam@1409 4145 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919 4146 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1407 4147 uw_write(ctx, begin_xhtml);
adam@1407 4148 ctx->app->on_error(ctx, msg);
adam@1407 4149 uw_write(ctx, "</html>");
adam@1407 4150 }
adam@1407 4151
adam@1407 4152 return r;
adam@1407 4153 } else
adam@1407 4154 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407 4155 }
adam@1451 4156
adam@1451 4157 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451 4158 ctx->allowed_to_return_indirectly = 1;
adam@1451 4159 }
adam@1483 4160
adam@1556 4161 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703 4162 int len;
adam@1703 4163 char *r;
adam@1703 4164
adam@1703 4165 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703 4166 r = ctx->heap.front;
adam@1703 4167 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703 4168 ctx->heap.front += len+1;
adam@1703 4169 return r;
adam@1556 4170 }
adam@1571 4171
adam@1571 4172 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571 4173 return n;
adam@1571 4174 }
adam@1571 4175
adam@1571 4176 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571 4177 return ceil(n);
adam@1571 4178 }
adam@1571 4179
adam@1571 4180 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571 4181 return trunc(n);
adam@1571 4182 }
adam@1571 4183
adam@1571 4184 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571 4185 return round(n);
adam@1571 4186 }
adam@1755 4187
adam@1755 4188 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755 4189 char *p;
adam@1755 4190
adam@1755 4191 for (p = s; *p; ++p) {
adam@1755 4192 char c = *p;
adam@1801 4193 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755 4194 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755 4195 }
adam@1755 4196
adam@1755 4197 return s;
adam@1755 4198 }
adam@1755 4199
adam@1755 4200 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755 4201 char *p;
adam@1755 4202
adam@1755 4203 for (p = s; *p; ++p) {
adam@1755 4204 char c = *p;
adam@1801 4205 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755 4206 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755 4207 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755 4208 }
adam@1755 4209
adam@1755 4210 return s;
adam@1755 4211 }
adam@1755 4212
adam@1755 4213 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755 4214 char *p;
adam@1755 4215
adam@1755 4216 if (!*s)
adam@1755 4217 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755 4218
adam@1801 4219 if (!islower((int)s[0]) && s[0] != '_')
adam@1755 4220 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755 4221
adam@1755 4222 for (p = s; *p; ++p) {
adam@1755 4223 char c = *p;
adam@1801 4224 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755 4225 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755 4226 }
adam@1755 4227
adam@1755 4228 return s;
adam@1755 4229 }
adam@1787 4230
adam@1787 4231 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787 4232 return f.name;
adam@1787 4233 }
adam@1787 4234
adam@1787 4235 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787 4236 return f.value;
adam@1787 4237 }
adam@1787 4238
adam@1787 4239 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787 4240 return f.remaining;
adam@1787 4241 }
adam@1787 4242
adam@1787 4243 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788 4244 char *unurl;
adam@1787 4245 uw_Basis_postField *f;
adam@1787 4246
adam@1788 4247 if (!ctx->hasPostBody)
adam@1788 4248 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788 4249
adam@1788 4250 if (s < ctx->postBody.data || s >= ctx->postBody.data + ctx->postBody.len)
adam@1787 4251 return NULL;
adam@1787 4252
adam@1787 4253 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788 4254 unurl = s;
adam@1787 4255 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788 4256 s = strchr(s, 0);
adam@1788 4257 if (!s)
adam@1788 4258 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788 4259 ++s;
adam@1788 4260 unurl = s;
adam@1788 4261 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788 4262 s = strchr(s, 0);
adam@1788 4263 if (!s)
adam@1788 4264 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788 4265 f->remaining = s+1;
adam@1787 4266
adam@1787 4267 return f;
adam@1787 4268 }