annotate src/c/urweb.c @ 1329:9be9da2df74b

Clarifying some C FFI details in manual
author Adam Chlipala <adam@chlipala.net>
date Sat, 11 Dec 2010 11:00:05 -0500
parents 1cc67fdac4d3
children 452b14d88a10
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>
adamc@102 16
adamc@667 17 #include <pthread.h>
adamc@667 18
adamc@102 19 #include "types.h"
adamc@102 20
adamc@311 21 uw_unit uw_unit_v = {};
adamc@102 22
adamc@667 23
adamc@667 24 // Socket extras
adamc@667 25
adamc@863 26 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667 27 while (len > 0) {
adamc@856 28 ssize_t n = send(sock, buf, len, 0);
adamc@856 29
adamc@856 30 if (n < 0)
adamc@856 31 return n;
adamc@856 32
adamc@856 33 buf += n;
adamc@856 34 len -= n;
adamc@856 35 }
adamc@856 36
adamc@856 37 return 0;
adamc@856 38 }
adamc@856 39
adamc@856 40 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856 41 while (len > 0) {
adamc@856 42 ssize_t n = write(fd, buf, len);
adamc@667 43
adamc@667 44 if (n < 0)
adamc@667 45 return n;
adamc@667 46
adamc@667 47 buf += n;
adamc@667 48 len -= n;
adamc@667 49 }
adamc@667 50
adamc@667 51 return 0;
adamc@667 52 }
adamc@667 53
adamc@667 54
adamc@667 55 // Buffers
adamc@667 56
adamc@667 57 typedef struct {
adamc@1113 58 size_t max;
adamc@667 59 char *start, *front, *back;
adamc@667 60 } buf;
adamc@667 61
adamc@1113 62 static void buf_init(size_t max, buf *b, size_t s) {
adamc@1113 63 b->max = max;
adamc@667 64 b->front = b->start = malloc(s);
adamc@667 65 b->back = b->front + s;
adamc@667 66 }
adamc@667 67
adamc@667 68 static void buf_free(buf *b) {
adamc@667 69 free(b->start);
adamc@667 70 }
adamc@667 71
adamc@667 72 static void buf_reset(buf *b) {
adamc@667 73 b->front = b->start;
adamc@667 74 }
adamc@667 75
adamc@1113 76 static int buf_check(buf *b, size_t extra) {
adamc@667 77 if (b->back - b->front < extra) {
adamc@667 78 size_t desired = b->front - b->start + extra, next;
adamc@667 79 char *new_heap;
adamc@667 80
adamc@667 81 next = b->back - b->start;
adamc@667 82 if (next == 0)
adamc@667 83 next = 1;
adamc@667 84 for (; next < desired; next *= 2);
adamc@667 85
adamc@1134 86 if (next > b->max) {
adamc@1113 87 if (desired <= b->max)
adamc@1113 88 next = desired;
adamc@1113 89 else
adamc@1113 90 return 1;
adamc@1134 91 }
adamc@1113 92
adamc@667 93 new_heap = realloc(b->start, next);
adamc@667 94 b->front = new_heap + (b->front - b->start);
adamc@667 95 b->back = new_heap + next;
adamc@667 96 b->start = new_heap;
adamc@667 97 }
adamc@1113 98
adamc@1113 99 return 0;
adamc@1113 100 }
adamc@1113 101
adamc@1113 102 __attribute__((noreturn)) void uw_error(uw_context, failure_kind, const char *, ...);
adamc@1113 103
adamc@1113 104 static void ctx_buf_check(uw_context ctx, const char *kind, buf *b, size_t extra) {
adamc@1113 105 if (buf_check(b, extra))
adamc@1113 106 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@667 107 }
adamc@667 108
adamc@667 109 static size_t buf_used(buf *b) {
adamc@667 110 return b->front - b->start;
adamc@667 111 }
adamc@667 112
adamc@667 113 static size_t buf_avail(buf *b) {
adamc@667 114 return b->back - b->start;
adamc@667 115 }
adamc@667 116
adamc@1113 117 static int buf_append(buf *b, const char *s, size_t len) {
adamc@1113 118 if (buf_check(b, len+1))
adamc@1113 119 return 1;
adamc@1113 120
adamc@1113 121 memcpy(b->front, s, len);
adamc@1113 122 b->front += len;
adamc@1113 123 *b->front = 0;
adamc@1113 124
adamc@1113 125 return 0;
adamc@1113 126 }
adamc@1113 127
adamc@1113 128 static void ctx_buf_append(uw_context ctx, const char *kind, buf *b, const char *s, size_t len) {
adamc@1113 129 ctx_buf_check(ctx, kind, b, len+1);
adamc@1113 130
adamc@668 131 memcpy(b->front, s, len);
adamc@668 132 b->front += len;
adamc@672 133 *b->front = 0;
adamc@668 134 }
adamc@667 135
adamc@668 136
adamc@672 137 // Persistent state types
adamc@667 138
adamc@667 139 typedef enum { UNUSED, USED } usage;
adamc@667 140
adamc@667 141 typedef struct client {
adamc@682 142 unsigned id;
adamc@667 143 usage mode;
adamc@682 144 int pass;
adamc@682 145 struct client *next;
adamc@689 146 pthread_mutex_t lock, pull_lock;
adamc@682 147 buf msgs;
adamc@682 148 int sock;
adamc@863 149 int (*send)(int sockfd, const void *buf, ssize_t len);
adamc@863 150 int (*close)(int fd);
adamc@682 151 time_t last_contact;
adamc@682 152 unsigned n_channels;
adamc@685 153 unsigned refcount;
adamc@1121 154 void *data;
adamc@667 155 } client;
adamc@667 156
adamc@672 157
adamc@672 158 // Persistent client state
adamc@672 159
adamc@682 160 static client **clients, *clients_free, *clients_used;
adamc@682 161 static unsigned n_clients;
adamc@667 162
adamc@667 163 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@667 164
adamc@1113 165 size_t uw_messages_max = SIZE_MAX;
adamc@1113 166 size_t uw_clients_max = SIZE_MAX;
adamc@1113 167
adamc@1121 168 void *uw_init_client_data();
adamc@1121 169 void uw_free_client_data(void *);
adamc@1121 170 void uw_copy_client_data(void *dst, void *src);
adamc@1121 171
adamc@682 172 static client *new_client() {
adamc@667 173 client *c;
adamc@667 174
adamc@667 175 pthread_mutex_lock(&clients_mutex);
adamc@667 176
adamc@667 177 if (clients_free) {
adamc@667 178 c = clients_free;
adamc@682 179 clients_free = clients_free->next;
adamc@667 180 }
adamc@1113 181 else if (n_clients >= uw_clients_max)
adamc@1113 182 return NULL;
adamc@667 183 else {
adamc@667 184 ++n_clients;
adamc@667 185 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667 186 c = malloc(sizeof(client));
adamc@667 187 c->id = n_clients-1;
adamc@682 188 pthread_mutex_init(&c->lock, NULL);
adamc@689 189 pthread_mutex_init(&c->pull_lock, NULL);
adamc@1113 190 buf_init(uw_messages_max, &c->msgs, 0);
adamc@667 191 clients[n_clients-1] = c;
adamc@667 192 }
adamc@667 193
adamc@682 194 pthread_mutex_lock(&c->lock);
adamc@667 195 c->mode = USED;
adamc@682 196 c->pass = rand();
adamc@682 197 c->sock = -1;
adamc@682 198 c->last_contact = time(NULL);
adamc@682 199 buf_reset(&c->msgs);
adamc@682 200 c->n_channels = 0;
adamc@685 201 c->refcount = 0;
adamc@1121 202 c->data = uw_init_client_data();
adamc@682 203 pthread_mutex_unlock(&c->lock);
adamc@682 204
adamc@682 205 c->next = clients_used;
adamc@682 206 clients_used = c;
adamc@667 207
adamc@667 208 pthread_mutex_unlock(&clients_mutex);
adamc@667 209
adamc@667 210 return c;
adamc@667 211 }
adamc@667 212
adamc@685 213 static void use_client(client *c) {
adamc@685 214 pthread_mutex_lock(&c->lock);
adamc@685 215 ++c->refcount;
adamc@685 216 pthread_mutex_unlock(&c->lock);
adamc@689 217 pthread_mutex_lock(&c->pull_lock);
adamc@685 218 }
adamc@685 219
adamc@685 220 static void release_client(client *c) {
adamc@689 221 pthread_mutex_unlock(&c->pull_lock);
adamc@685 222 pthread_mutex_lock(&c->lock);
adamc@685 223 --c->refcount;
adamc@685 224 pthread_mutex_unlock(&c->lock);
adamc@689 225
adamc@685 226 }
adamc@685 227
adamc@856 228 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adamc@667 229
adamc@682 230 static client *find_client(unsigned id) {
adamc@667 231 client *c;
adamc@667 232
adamc@667 233 pthread_mutex_lock(&clients_mutex);
adamc@667 234
adamc@667 235 if (id >= n_clients) {
adamc@667 236 pthread_mutex_unlock(&clients_mutex);
adamc@668 237 return NULL;
adamc@667 238 }
adamc@667 239
adamc@667 240 c = clients[id];
adamc@667 241
adamc@668 242 pthread_mutex_unlock(&clients_mutex);
adamc@668 243 return c;
adamc@668 244 }
adamc@668 245
adamc@856 246 static char *on_success = "HTTP/1.1 200 OK\r\n";
adamc@1065 247 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856 248
adamc@856 249 void uw_set_on_success(char *s) {
adamc@856 250 on_success = s;
adamc@856 251 }
adamc@856 252
adamc@863 253 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863 254 int (*send)(int sockfd, const void *buf, ssize_t len),
adamc@864 255 int (*close)(int fd),
adamc@864 256 void *logger_data, uw_logger log_error) {
adamc@682 257 client *c = find_client(id);
adamc@668 258
adamc@668 259 if (c == NULL) {
adamc@667 260 close(sock);
adamc@864 261 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667 262 return;
adamc@667 263 }
adamc@667 264
adamc@682 265 pthread_mutex_lock(&c->lock);
adamc@671 266
adamc@682 267 if (c->mode != USED) {
adamc@682 268 pthread_mutex_unlock(&c->lock);
adamc@667 269 close(sock);
adamc@864 270 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667 271 return;
adamc@667 272 }
adamc@667 273
adamc@682 274 if (pass != c->pass) {
adamc@682 275 pthread_mutex_unlock(&c->lock);
adamc@682 276 close(sock);
adamc@864 277 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682 278 return;
adamc@667 279 }
adamc@667 280
adamc@682 281 if (c->sock != -1) {
adamc@863 282 c->close(c->sock);
adamc@682 283 c->sock = -1;
adamc@682 284 }
adamc@667 285
adamc@682 286 c->last_contact = time(NULL);
adamc@682 287
adamc@682 288 if (buf_used(&c->msgs) > 0) {
adamc@863 289 send(sock, on_success, strlen(on_success));
adamc@863 290 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863 291 send(sock, c->msgs.start, buf_used(&c->msgs));
adamc@682 292 buf_reset(&c->msgs);
adamc@667 293 close(sock);
adamc@667 294 }
adamc@863 295 else {
adamc@682 296 c->sock = sock;
adamc@863 297 c->send = send;
adamc@863 298 c->close = close;
adamc@863 299 }
adamc@667 300
adamc@682 301 pthread_mutex_unlock(&c->lock);
adamc@667 302 }
adamc@667 303
adamc@682 304 static void free_client(client *c) {
adamc@682 305 c->mode = UNUSED;
adamc@682 306 c->pass = -1;
adamc@667 307
adamc@682 308 c->next = clients_free;
adamc@682 309 clients_free = c;
adamc@667 310 }
adamc@667 311
adamc@682 312 static uw_Basis_channel new_channel(client *c) {
adamc@682 313 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668 314 return ch;
adamc@668 315 }
adamc@668 316
adamc@685 317 static void client_send(client *c, buf *msg) {
adamc@685 318 pthread_mutex_lock(&c->lock);
adamc@671 319
adamc@682 320 if (c->sock != -1) {
adamc@863 321 c->send(c->sock, on_success, strlen(on_success));
adamc@863 322 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863 323 c->send(c->sock, msg->start, buf_used(msg));
adamc@863 324 c->close(c->sock);
adamc@682 325 c->sock = -1;
adamc@1113 326 } else if (buf_append(&c->msgs, msg->start, buf_used(msg)))
adamc@1113 327 fprintf(stderr, "Client message buffer size exceeded");
adamc@671 328
adamc@685 329 pthread_mutex_unlock(&c->lock);
adamc@668 330 }
adamc@668 331
adamc@668 332
adamc@668 333 // Global entry points
adamc@668 334
adamc@1164 335 extern void uw_global_custom();
adamc@1104 336 extern void uw_init_crypto();
adamc@1104 337
adamc@668 338 void uw_global_init() {
adamc@668 339 srand(time(NULL) ^ getpid());
adamc@668 340
adamc@668 341 clients = malloc(0);
adamc@1104 342
adamc@1164 343 uw_global_custom();
adamc@1104 344 uw_init_crypto();
adamc@1094 345 }
adamc@1094 346
adamc@1094 347 void uw_app_init(uw_app *app) {
adamc@1094 348 app->client_init();
adamc@668 349 }
adamc@668 350
adam@1308 351 int uw_time = 0, uw_time_max = 0;
adamc@1114 352
adamc@668 353
adamc@667 354 // Single-request state
adamc@667 355
adamc@323 356 typedef struct regions {
adamc@323 357 struct regions *next;
adamc@323 358 } regions;
adamc@323 359
adamc@425 360 typedef struct {
adamc@425 361 void (*func)(void*);
adamc@425 362 void *arg;
adamc@425 363 } cleanup;
adamc@425 364
adamc@671 365 typedef struct {
adamc@682 366 unsigned client;
adamc@671 367 buf msgs;
adamc@682 368 } delta;
adamc@671 369
adamc@737 370 typedef enum {
adamc@759 371 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737 372 } input_kind;
adamc@737 373
adamc@756 374 typedef struct input {
adamc@737 375 input_kind kind;
adamc@737 376 union {
adamc@737 377 char *normal;
adamc@739 378 uw_Basis_file file;
adamc@756 379 struct {
adamc@759 380 struct input *fields, *parent;
adamc@756 381 } subform;
adamc@759 382 struct {
adamc@759 383 struct input *entries, *parent;
adamc@759 384 } subforms;
adamc@759 385 struct {
adamc@759 386 struct input *fields, *next, *parent;
adamc@759 387 } entry;
adamc@737 388 } data;
adamc@737 389 } input;
adamc@737 390
adamc@771 391 typedef struct {
adamc@771 392 void *data;
adam@1327 393 uw_callback commit, rollback;
adam@1327 394 uw_callback_with_retry free;
adamc@771 395 } transactional;
adamc@771 396
adamc@1061 397 typedef struct {
adamc@1061 398 char *name;
adamc@1061 399 void *data;
adamc@1061 400 void (*free)(void*);
adamc@1061 401 } global;
adamc@1061 402
adamc@311 403 struct uw_context {
adamc@1094 404 uw_app *app;
adamc@1094 405
adamc@854 406 char *(*get_header)(void *, const char *);
adamc@854 407 void *get_header_data;
adamc@457 408
adamc@666 409 buf outHeaders, page, heap, script;
adamc@1065 410 int returning_indirectly;
adamc@759 411 input *inputs, *subinputs, *cur_container;
adamc@1094 412 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167 413
adamc@565 414 int source_count;
adamc@562 415
adamc@272 416 void *db;
adamc@272 417
adamc@167 418 jmp_buf jmp_buf;
adamc@167 419
adamc@323 420 regions *regions;
adamc@323 421
adamc@425 422 cleanup *cleanup, *cleanup_front, *cleanup_back;
adamc@425 423
adamc@1094 424 const char *script_header;
adamc@643 425
adamc@736 426 int needs_push, needs_sig;
adamc@693 427
adamc@682 428 size_t n_deltas, used_deltas;
adamc@682 429 delta *deltas;
adamc@671 430
adamc@682 431 client *client;
adamc@682 432
adamc@771 433 transactional *transactionals;
adamc@771 434 size_t n_transactionals, used_transactionals;
adamc@771 435
adamc@1061 436 global *globals;
adamc@1061 437 size_t n_globals;
adamc@1061 438
adamc@1066 439 char *current_url;
adamc@1066 440
adamc@1114 441 int deadline;
adamc@1114 442
adamc@1121 443 void *client_data;
adamc@1121 444
adamc@167 445 char error_message[ERROR_BUF_LEN];
adamc@117 446 };
adamc@117 447
adamc@1113 448 size_t uw_headers_max = SIZE_MAX;
adamc@1113 449 size_t uw_page_max = SIZE_MAX;
adamc@1113 450 size_t uw_heap_max = SIZE_MAX;
adamc@1113 451 size_t uw_script_max = SIZE_MAX;
adamc@1113 452
adamc@687 453 uw_context uw_init() {
adamc@311 454 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136 455
adamc@1094 456 ctx->app = NULL;
adamc@1094 457
adamc@854 458 ctx->get_header = NULL;
adamc@854 459 ctx->get_header_data = NULL;
adamc@457 460
adamc@1113 461 buf_init(uw_headers_max, &ctx->outHeaders, 0);
adamc@1113 462 buf_init(uw_page_max, &ctx->page, 0);
adamc@1065 463 ctx->returning_indirectly = 0;
adamc@1113 464 buf_init(uw_heap_max, &ctx->heap, 0);
adamc@1113 465 buf_init(uw_script_max, &ctx->script, 1);
adamc@667 466 ctx->script.start[0] = 0;
adamc@136 467
adamc@1094 468 ctx->inputs = malloc(0);
adamc@759 469 ctx->cur_container = NULL;
adamc@756 470 ctx->subinputs = malloc(0);
adamc@1094 471 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144 472
adamc@272 473 ctx->db = NULL;
adamc@272 474
adamc@323 475 ctx->regions = NULL;
adamc@323 476
adamc@425 477 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425 478
adamc@643 479 ctx->script_header = "";
adamc@693 480 ctx->needs_push = 0;
adamc@736 481 ctx->needs_sig = 0;
adamc@1104 482
adamc@565 483 ctx->source_count = 0;
adamc@562 484
adamc@682 485 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671 486 ctx->deltas = malloc(0);
adamc@671 487
adamc@700 488 ctx->client = NULL;
adamc@700 489
adamc@700 490 ctx->error_message[0] = 0;
adamc@700 491
adamc@771 492 ctx->transactionals = malloc(0);
adamc@771 493 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771 494
adamc@1061 495 ctx->globals = malloc(0);
adamc@1061 496 ctx->n_globals = 0;
adamc@1061 497
adamc@1066 498 ctx->current_url = "";
adamc@1066 499
adamc@1114 500 ctx->deadline = INT_MAX;
adamc@1114 501
adamc@1121 502 ctx->client_data = uw_init_client_data();
adamc@1121 503
adamc@117 504 return ctx;
adamc@106 505 }
adamc@106 506
adamc@1113 507 size_t uw_inputs_max = SIZE_MAX;
adamc@1113 508
adamc@1121 509 uw_app *uw_get_app(uw_context ctx) {
adamc@1121 510 return ctx->app;
adamc@1121 511 }
adamc@1121 512
adamc@1113 513 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094 514 ctx->app = app;
adamc@1094 515
adamc@1105 516 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113 517 if (app->inputs_len > uw_inputs_max)
adamc@1113 518 return 1;
adamc@1113 519
adamc@1094 520 ctx->sz_inputs = app->inputs_len;
adamc@1094 521 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094 522 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094 523 }
adamc@1134 524
adamc@1134 525 return 0;
adamc@1094 526 }
adamc@1094 527
adamc@1121 528 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121 529 uw_copy_client_data(ctx->client_data, data);
adamc@1121 530 }
adamc@1121 531
adamc@311 532 void uw_set_db(uw_context ctx, void *db) {
adamc@272 533 ctx->db = db;
adamc@272 534 }
adamc@272 535
adamc@311 536 void *uw_get_db(uw_context ctx) {
adamc@272 537 return ctx->db;
adamc@272 538 }
adamc@272 539
adamc@311 540 void uw_free(uw_context ctx) {
adamc@671 541 size_t i;
adamc@671 542
adamc@666 543 buf_free(&ctx->outHeaders);
adamc@666 544 buf_free(&ctx->script);
adamc@666 545 buf_free(&ctx->page);
adamc@666 546 buf_free(&ctx->heap);
adamc@144 547 free(ctx->inputs);
adamc@756 548 free(ctx->subinputs);
adamc@425 549 free(ctx->cleanup);
adamc@771 550 free(ctx->transactionals);
adamc@1121 551 uw_free_client_data(ctx->client_data);
adamc@671 552
adamc@682 553 for (i = 0; i < ctx->n_deltas; ++i)
adamc@671 554 buf_free(&ctx->deltas[i].msgs);
adamc@671 555
adamc@1061 556 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089 557 if (ctx->globals[i].free)
adamc@1089 558 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061 559
adamc@136 560 free(ctx);
adamc@136 561 }
adamc@136 562
adamc@562 563 void uw_reset_keep_error_message(uw_context ctx) {
adamc@666 564 buf_reset(&ctx->outHeaders);
adamc@666 565 buf_reset(&ctx->script);
adamc@667 566 ctx->script.start[0] = 0;
adamc@666 567 buf_reset(&ctx->page);
adamc@1065 568 ctx->returning_indirectly = 0;
adamc@666 569 buf_reset(&ctx->heap);
adamc@323 570 ctx->regions = NULL;
adamc@425 571 ctx->cleanup_front = ctx->cleanup;
adamc@565 572 ctx->source_count = 0;
adamc@682 573 ctx->used_deltas = 0;
adamc@682 574 ctx->client = NULL;
adamc@759 575 ctx->cur_container = NULL;
adamc@771 576 ctx->used_transactionals = 0;
adamc@1117 577 ctx->script_header = "";
adamc@167 578 }
adamc@167 579
adamc@562 580 void uw_reset_keep_request(uw_context ctx) {
adamc@562 581 uw_reset_keep_error_message(ctx);
adamc@562 582 ctx->error_message[0] = 0;
adamc@167 583 }
adamc@167 584
adamc@311 585 void uw_reset(uw_context ctx) {
adamc@311 586 uw_reset_keep_request(ctx);
adamc@1105 587 if (ctx->app)
adamc@1105 588 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756 589 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adamc@756 590 ctx->used_subinputs = 0;
adamc@144 591 }
adamc@144 592
adamc@311 593 failure_kind uw_begin_init(uw_context ctx) {
adamc@272 594 int r = setjmp(ctx->jmp_buf);
adamc@272 595
adamc@1105 596 if (r == 0 && ctx->app)
adamc@1094 597 ctx->app->db_init(ctx);
adamc@272 598
adamc@272 599 return r;
adamc@272 600 }
adamc@272 601
adamc@1118 602 void uw_close(uw_context ctx) {
adamc@1118 603 ctx->app->db_close(ctx);
adamc@1118 604 }
adamc@1118 605
adamc@854 606 void uw_set_headers(uw_context ctx, char *(*get_header)(void *, const char *), void *get_header_data) {
adamc@854 607 ctx->get_header = get_header;
adamc@854 608 ctx->get_header_data = get_header_data;
adamc@742 609 }
adamc@742 610
adamc@801 611 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801 612 va_list ap;
adamc@801 613 va_start(ap, fmt);
adamc@801 614
adamc@801 615 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801 616 }
adamc@801 617
adamc@1131 618 int uw_has_error(uw_context ctx) {
adamc@1131 619 return ctx->error_message[0] != 0;
adamc@1131 620 }
adamc@1131 621
adamc@311 622 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425 623 cleanup *cl;
adamc@425 624
adamc@167 625 va_list ap;
adamc@167 626 va_start(ap, fmt);
adamc@167 627
adamc@167 628 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167 629
adamc@425 630 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425 631 cl->func(cl->arg);
adamc@425 632
adamc@425 633 ctx->cleanup_front = ctx->cleanup;
adamc@425 634
adamc@190 635 longjmp(ctx->jmp_buf, fk);
adamc@167 636 }
adamc@167 637
adamc@1113 638 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113 639
adamc@425 640 void uw_push_cleanup(uw_context ctx, void (*func)(void *), void *arg) {
adamc@425 641 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425 642 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425 643 if (len == 0)
adamc@425 644 newLen = 1;
adamc@425 645 else
adamc@428 646 newLen = len * 2;
adamc@1113 647
adamc@1134 648 if (newLen > uw_cleanup_max) {
adamc@1113 649 if (len+1 <= uw_cleanup_max)
adamc@1113 650 newLen = uw_cleanup_max;
adamc@1113 651 else
adamc@1113 652 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134 653 }
adamc@1113 654
adamc@470 655 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425 656 ctx->cleanup_front = ctx->cleanup + len;
adamc@425 657 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425 658 }
adamc@425 659
adamc@425 660 ctx->cleanup_front->func = func;
adamc@425 661 ctx->cleanup_front->arg = arg;
adamc@425 662 ++ctx->cleanup_front;
adamc@425 663 }
adamc@425 664
adamc@682 665 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adamc@854 666 return ctx->get_header(ctx->get_header_data, h);
adamc@682 667 }
adamc@682 668
adamc@682 669 void uw_login(uw_context ctx) {
adamc@693 670 if (ctx->needs_push) {
adamc@682 671 char *id_s, *pass_s;
adamc@682 672
adamc@682 673 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682 674 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682 675 unsigned id = atoi(id_s);
adamc@682 676 int pass = atoi(pass_s);
adamc@682 677 client *c = find_client(id);
adamc@682 678
adamc@682 679 if (c == NULL)
adamc@682 680 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", id_s, pass_s);
adamc@682 681 else {
adamc@685 682 use_client(c);
adamc@682 683 ctx->client = c;
adamc@682 684
adamc@682 685 if (c->mode != USED)
adamc@682 686 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682 687 if (c->pass != pass)
adamc@682 688 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682 689 }
adamc@682 690 } else {
adamc@682 691 client *c = new_client();
adamc@1113 692
adamc@1113 693 if (c == NULL)
adamc@1113 694 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adamc@1113 695
adamc@685 696 use_client(c);
adamc@1121 697 uw_copy_client_data(c->data, ctx->client_data);
adamc@682 698 ctx->client = c;
adamc@864 699 }
adamc@682 700 }
adamc@682 701 }
adamc@682 702
adamc@671 703 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671 704 int r = setjmp(ctx->jmp_buf);
adamc@671 705
adamc@671 706 if (r == 0) {
adamc@1094 707 if (ctx->app->db_begin(ctx))
adamc@671 708 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adamc@682 709
adamc@1094 710 ctx->app->handle(ctx, path);
adamc@671 711 }
adamc@671 712
adamc@671 713 return r;
adamc@671 714 }
adamc@671 715
adam@1294 716 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1294 717 int r = setjmp(ctx->jmp_buf);
adam@1294 718
adam@1294 719 if (ctx->app->on_error) {
adam@1294 720 if (r == 0) {
adam@1294 721 if (ctx->app->db_begin(ctx))
adam@1294 722 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1294 723
adam@1294 724 ctx->app->on_error(ctx, msg);
adam@1294 725 }
adam@1294 726
adam@1294 727 return r;
adam@1294 728 } else
adam@1294 729 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1294 730 }
adam@1294 731
adamc@772 732 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682 733 if (ctx->client == NULL)
adamc@682 734 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682 735
adamc@682 736 return ctx->client->id;
adamc@682 737 }
adamc@682 738
adamc@425 739 void uw_pop_cleanup(uw_context ctx) {
adamc@425 740 if (ctx->cleanup_front == ctx->cleanup)
adamc@425 741 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425 742
adamc@425 743 --ctx->cleanup_front;
adamc@425 744 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425 745 }
adamc@425 746
adamc@311 747 char *uw_error_message(uw_context ctx) {
adamc@167 748 return ctx->error_message;
adamc@167 749 }
adamc@167 750
adamc@1115 751 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115 752 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115 753 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115 754 }
adamc@1115 755
adamc@759 756 static input *INP(uw_context ctx) {
adamc@759 757 if (ctx->cur_container == NULL)
adamc@759 758 return ctx->inputs;
adamc@759 759 else if (ctx->cur_container->kind == SUBFORM)
adamc@759 760 return ctx->cur_container->data.subform.fields;
adamc@759 761 else if (ctx->cur_container->kind == ENTRY)
adamc@759 762 return ctx->cur_container->data.entry.fields;
adamc@759 763 else
adamc@760 764 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759 765 }
adamc@759 766
adamc@760 767 static void adjust_pointer(input **ptr, input *old_start, input *new_start, size_t len) {
adamc@760 768 if (*ptr != NULL && *ptr >= old_start && *ptr < old_start + len)
adamc@760 769 *ptr += new_start - old_start;
adamc@760 770 }
adamc@760 771
adamc@760 772 static void adjust_input(input *x, input *old_start, input *new_start, size_t len) {
adamc@759 773 switch (x->kind) {
adamc@759 774 case SUBFORM:
adamc@760 775 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760 776 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759 777 break;
adamc@759 778 case SUBFORMS:
adamc@760 779 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760 780 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759 781 break;
adamc@759 782 case ENTRY:
adamc@760 783 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760 784 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760 785 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134 786 break;
adamc@1134 787 default:
adamc@1134 788 break;
adamc@759 789 }
adamc@759 790 }
adamc@759 791
adamc@1113 792 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113 793
adamc@759 794 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759 795 size_t i;
adamc@759 796 input *r;
adamc@759 797
adamc@759 798 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113 799 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113 800 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113 801
adamc@759 802 input *new_subinputs = realloc(ctx->subinputs, sizeof(input) * (ctx->used_subinputs + len));
adamc@759 803
adamc@760 804 if (ctx->subinputs != new_subinputs) {
adamc@760 805 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760 806 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094 807 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760 808 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760 809
adamc@760 810 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760 811
adamc@760 812 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760 813 ctx->subinputs = new_subinputs;
adamc@760 814 }
adamc@759 815 }
adamc@759 816
adamc@759 817 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759 818
adamc@759 819 for (i = 0; i < len; ++i)
adamc@759 820 ctx->subinputs[ctx->used_subinputs++].kind = UNUSED;
adamc@759 821
adamc@759 822 return r;
adamc@759 823 }
adamc@756 824
adamc@801 825 int uw_set_input(uw_context ctx, const char *name, char *value) {
adamc@1050 826 //printf("Input name %s\n", name);
adamc@1038 827
adamc@756 828 if (!strcasecmp(name, ".b")) {
adamc@1094 829 int n = ctx->app->input_num(value);
adamc@756 830 input *inps;
adamc@756 831
adamc@801 832 if (n < 0) {
adamc@801 833 uw_set_error(ctx, "Bad subform name %s", value);
adamc@801 834 return -1;
adamc@801 835 }
adamc@801 836
adamc@1094 837 if (n >= ctx->app->inputs_len) {
adamc@801 838 uw_set_error(ctx, "For subform name %s, index %d is out of range", value, n);
adamc@801 839 return -1;
adamc@801 840 }
adamc@756 841
adamc@1094 842 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759 843
adamc@759 844 INP(ctx)[n].kind = SUBFORM;
adamc@759 845 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759 846 INP(ctx)[n].data.subform.fields = inps;
adamc@759 847 ctx->cur_container = &INP(ctx)[n];
adamc@756 848 } else if (!strcasecmp(name, ".e")) {
adamc@756 849 input *tmp;
adamc@756 850
adamc@801 851 if (ctx->cur_container == NULL) {
adamc@801 852 uw_set_error(ctx, "Unmatched subform closer");
adamc@801 853 return -1;
adamc@801 854 }
adamc@756 855
adamc@759 856 tmp = ctx->cur_container;
adamc@759 857 switch (tmp->kind) {
adamc@759 858 case SUBFORM:
adamc@759 859 ctx->cur_container = tmp->data.subform.parent;
adamc@759 860 tmp->data.subform.parent = NULL;
adamc@759 861 break;
adamc@759 862 case SUBFORMS:
adamc@759 863 ctx->cur_container = tmp->data.subforms.parent;
adamc@759 864 tmp->data.subforms.parent = NULL;
adamc@759 865 break;
adamc@759 866 case ENTRY:
adamc@759 867 ctx->cur_container = tmp->data.entry.parent;
adamc@759 868 break;
adamc@759 869 default:
adamc@801 870 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801 871 return -1;
adamc@759 872 }
adamc@759 873 } else if (!strcasecmp(name, ".s")) {
adamc@1094 874 int n = ctx->app->input_num(value);
adamc@759 875
adamc@801 876 if (n < 0) {
adamc@801 877 uw_set_error(ctx, "Bad subforms name %s", value);
adamc@801 878 return -1;
adamc@801 879 }
adamc@801 880
adamc@1094 881 if (n >= ctx->app->inputs_len) {
adamc@801 882 uw_set_error(ctx, "For subforms name %s, index %d is out of range", value, n);
adamc@801 883 return -1;
adamc@801 884 }
adamc@759 885
adamc@759 886 INP(ctx)[n].kind = SUBFORMS;
adamc@759 887 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759 888 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759 889 ctx->cur_container = &INP(ctx)[n];
adamc@759 890 } else if (!strcasecmp(name, ".i")) {
adamc@759 891 input *inps;
adamc@759 892
adamc@801 893 if (!ctx->cur_container) {
adamc@801 894 uw_set_error(ctx, "New entry without container");
adamc@801 895 return -1;
adamc@801 896 }
adamc@801 897
adamc@801 898 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801 899 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801 900 return -1;
adamc@801 901 }
adamc@759 902
adamc@1094 903 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759 904
adamc@759 905 inps->kind = ENTRY;
adamc@759 906 inps->data.entry.parent = ctx->cur_container;
adamc@759 907 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759 908 ctx->cur_container->data.subforms.entries = inps;
adamc@759 909
adamc@759 910 inps->data.entry.fields = inps+1;
adamc@759 911 ctx->cur_container = inps;
adamc@756 912 } else {
adamc@1094 913 int n = ctx->app->input_num(name);
adamc@756 914
adamc@801 915 if (n < 0) {
adamc@1038 916 if (!strcmp(name, "null"))
adamc@1038 917 return 0;
adamc@801 918 uw_set_error(ctx, "Bad input name %s", name);
adamc@801 919 return -1;
adamc@801 920 }
adamc@801 921
adamc@1094 922 if (n >= ctx->app->inputs_len) {
adamc@801 923 uw_set_error(ctx, "For input name %s, index %d is out of range", name, n);
adamc@801 924 return -1;
adamc@801 925 }
adamc@756 926
adamc@756 927 INP(ctx)[n].kind = NORMAL;
adamc@756 928 INP(ctx)[n].data.normal = value;
adamc@756 929 }
adamc@801 930
adamc@801 931 return 0;
adamc@144 932 }
adamc@144 933
adamc@311 934 char *uw_get_input(uw_context ctx, int n) {
adamc@169 935 if (n < 0)
adamc@311 936 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094 937 if (n >= ctx->app->inputs_len)
adamc@311 938 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737 939
adamc@756 940 switch (INP(ctx)[n].kind) {
adamc@737 941 case UNSET:
adamc@737 942 return NULL;
adamc@739 943 case FIL:
adamc@739 944 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756 945 case SUBFORM:
adamc@756 946 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759 947 case SUBFORMS:
adamc@759 948 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759 949 case ENTRY:
adamc@759 950 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737 951 case NORMAL:
adamc@756 952 return INP(ctx)[n].data.normal;
adamc@737 953 default:
adamc@737 954 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 955 }
adamc@138 956 }
adamc@138 957
adamc@311 958 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190 959 if (n < 0)
adamc@311 960 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094 961 if (n >= ctx->app->inputs_len)
adamc@311 962 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737 963
adamc@756 964 switch (INP(ctx)[n].kind) {
adamc@737 965 case UNSET:
adamc@737 966 return "";
adamc@739 967 case FIL:
adamc@739 968 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756 969 case SUBFORM:
adamc@756 970 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759 971 case SUBFORMS:
adamc@759 972 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759 973 case ENTRY:
adamc@759 974 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737 975 case NORMAL:
adamc@756 976 return INP(ctx)[n].data.normal;
adamc@737 977 default:
adamc@737 978 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 979 }
adamc@737 980 }
adamc@737 981
adamc@801 982 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094 983 int n = ctx->app->input_num(name);
adamc@737 984
adamc@801 985 if (n < 0) {
adamc@801 986 uw_set_error(ctx, "Bad file input name %s", name);
adamc@801 987 return -1;
adamc@801 988 }
adamc@801 989
adamc@1094 990 if (n >= ctx->app->inputs_len) {
adamc@801 991 uw_set_error(ctx, "For file input name %s, index %d is out of range", name, n);
adamc@801 992 return -1;
adamc@801 993 }
adamc@737 994
adamc@739 995 ctx->inputs[n].kind = FIL;
adamc@739 996 ctx->inputs[n].data.file = f;
adamc@801 997
adamc@801 998 return 0;
adamc@737 999 }
adamc@737 1000
adamc@739 1001 void *uw_malloc(uw_context ctx, size_t len);
adamc@739 1002
adamc@739 1003 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737 1004 if (n < 0)
adamc@737 1005 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094 1006 if (n >= ctx->app->inputs_len)
adamc@737 1007 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737 1008
adamc@756 1009 switch (INP(ctx)[n].kind) {
adamc@737 1010 case UNSET:
adamc@737 1011 {
adamc@739 1012 char *data = uw_malloc(ctx, 0);
adamc@740 1013 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739 1014 return f;
adamc@737 1015 }
adamc@739 1016 case FIL:
adamc@756 1017 return INP(ctx)[n].data.file;
adamc@737 1018 case NORMAL:
adamc@737 1019 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756 1020 case SUBFORM:
adamc@756 1021 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759 1022 case SUBFORMS:
adamc@759 1023 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759 1024 case ENTRY:
adamc@759 1025 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737 1026 default:
adamc@737 1027 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 1028 }
adamc@190 1029 }
adamc@190 1030
adamc@756 1031 void uw_enter_subform(uw_context ctx, int n) {
adamc@756 1032 if (n < 0)
adamc@756 1033 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094 1034 if (n >= ctx->app->inputs_len)
adamc@756 1035 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756 1036
adamc@756 1037 switch (INP(ctx)[n].kind) {
adamc@756 1038 case UNSET:
adamc@756 1039 uw_error(ctx, FATAL, "Missing subform");
adamc@756 1040 case FIL:
adamc@756 1041 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756 1042 case NORMAL:
adamc@756 1043 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759 1044 case SUBFORMS:
adamc@759 1045 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759 1046 case ENTRY:
adamc@759 1047 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756 1048 case SUBFORM:
adamc@759 1049 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760 1050 ctx->cur_container = &INP(ctx)[n];
adamc@756 1051 return;
adamc@756 1052 default:
adamc@756 1053 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756 1054 }
adamc@756 1055 }
adamc@756 1056
adamc@756 1057 void uw_leave_subform(uw_context ctx) {
adamc@756 1058 input *tmp;
adamc@756 1059
adamc@759 1060 if (ctx->cur_container == NULL)
adamc@756 1061 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756 1062
adamc@759 1063 tmp = ctx->cur_container;
adamc@759 1064 ctx->cur_container = tmp->data.subform.parent;
adamc@759 1065 tmp->data.subform.parent = NULL;
adamc@759 1066 }
adamc@759 1067
adamc@759 1068 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759 1069 input *inps;
adamc@759 1070
adamc@759 1071 if (n < 0)
adamc@759 1072 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094 1073 if (n >= ctx->app->inputs_len)
adamc@759 1074 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759 1075
adamc@759 1076 switch (INP(ctx)[n].kind) {
adamc@759 1077 case UNSET:
adamc@759 1078 uw_error(ctx, FATAL, "Missing subforms");
adamc@759 1079 case FIL:
adamc@759 1080 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759 1081 case NORMAL:
adamc@759 1082 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759 1083 case SUBFORM:
adamc@759 1084 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759 1085 case ENTRY:
adamc@759 1086 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759 1087 case SUBFORMS:
adamc@759 1088 inps = INP(ctx)[n].data.subforms.entries;
adamc@759 1089 if (inps) {
adamc@759 1090 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759 1091 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759 1092 return 1;
adamc@759 1093 } else
adamc@759 1094 return 0;
adamc@759 1095 default:
adamc@759 1096 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759 1097 }
adamc@759 1098 }
adamc@759 1099
adamc@759 1100 int uw_next_entry(uw_context ctx) {
adamc@759 1101 if (ctx->cur_container == NULL)
adamc@759 1102 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759 1103
adamc@759 1104 switch (ctx->cur_container->kind) {
adamc@759 1105 case UNSET:
adamc@759 1106 uw_error(ctx, FATAL, "Missing entry");
adamc@759 1107 case FIL:
adamc@759 1108 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759 1109 case NORMAL:
adamc@759 1110 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759 1111 case SUBFORM:
adamc@759 1112 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759 1113 case SUBFORMS:
adamc@759 1114 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759 1115 case ENTRY:
adamc@759 1116 if (ctx->cur_container->data.entry.next) {
adamc@759 1117 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759 1118 return 1;
adamc@759 1119 } else {
adamc@759 1120 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759 1121 return 0;
adamc@759 1122 }
adamc@759 1123 default:
adamc@759 1124 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759 1125 }
adamc@756 1126 }
adamc@756 1127
adamc@643 1128 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643 1129 ctx->script_header = s;
adamc@643 1130 }
adamc@643 1131
adamc@1094 1132 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094 1133 return ctx->app->url_prefix;
adamc@667 1134 }
adamc@667 1135
adamc@693 1136 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693 1137 ctx->needs_push = n;
adamc@693 1138 }
adamc@693 1139
adamc@736 1140 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736 1141 ctx->needs_sig = n;
adamc@736 1142 }
adamc@736 1143
adamc@667 1144
adamc@1113 1145 static void buf_check_ctx(uw_context ctx, const char *kind, buf *b, size_t extra, const char *desc) {
adamc@666 1146 if (b->back - b->front < extra) {
adamc@666 1147 size_t desired = b->front - b->start + extra, next;
adamc@136 1148 char *new_heap;
adamc@136 1149
adamc@666 1150 next = b->back - b->start;
adamc@317 1151 if (next == 0)
adamc@317 1152 next = 1;
adamc@317 1153 for (; next < desired; next *= 2);
adamc@136 1154
adamc@1134 1155 if (next > b->max) {
adamc@1113 1156 if (desired <= b->max)
adamc@1113 1157 next = desired;
adamc@1113 1158 else
adamc@1113 1159 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134 1160 }
adamc@1113 1161
adamc@666 1162 new_heap = realloc(b->start, next);
adamc@666 1163 b->front = new_heap + (b->front - b->start);
adamc@666 1164 b->back = new_heap + next;
adamc@136 1165
adamc@667 1166 if (new_heap != b->start) {
adamc@666 1167 b->start = new_heap;
adamc@666 1168 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously", desc);
adamc@136 1169 }
adamc@136 1170
adamc@666 1171 b->start = new_heap;
adamc@136 1172 }
adamc@136 1173 }
adamc@136 1174
adamc@832 1175 void uw_check_heap(uw_context ctx, size_t extra) {
adamc@1113 1176 buf_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666 1177 }
adamc@666 1178
adamc@832 1179 char *uw_heap_front(uw_context ctx) {
adamc@832 1180 return ctx->heap.front;
adamc@832 1181 }
adamc@832 1182
adamc@832 1183 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832 1184 ctx->heap.front = fr;
adamc@832 1185 }
adamc@832 1186
adamc@311 1187 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136 1188 void *result;
adamc@136 1189
adamc@311 1190 uw_check_heap(ctx, len);
adamc@136 1191
adamc@666 1192 result = ctx->heap.front;
adamc@666 1193 ctx->heap.front += len;
adamc@136 1194 return result;
adamc@117 1195 }
adamc@117 1196
adamc@323 1197 void uw_begin_region(uw_context ctx) {
adamc@666 1198 regions *r = (regions *) ctx->heap.front;
adamc@323 1199
adamc@323 1200 uw_check_heap(ctx, sizeof(regions));
adamc@323 1201
adamc@666 1202 ctx->heap.front += sizeof(regions);
adamc@323 1203
adamc@323 1204 r->next = ctx->regions;
adamc@323 1205 ctx->regions = r;
adamc@323 1206 }
adamc@323 1207
adamc@323 1208 void uw_end_region(uw_context ctx) {
adamc@323 1209 regions *r = ctx->regions;
adamc@323 1210
adamc@323 1211 if (r == NULL)
adamc@323 1212 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323 1213
adamc@666 1214 ctx->heap.front = (char *) r;
adamc@323 1215 ctx->regions = r->next;
adamc@323 1216 }
adamc@323 1217
adamc@324 1218 void uw_memstats(uw_context ctx) {
adamc@1134 1219 printf("Headers: %lu/%lu\n", (unsigned long)buf_used(&ctx->outHeaders), (unsigned long)buf_avail(&ctx->outHeaders));
adamc@1134 1220 printf("Script: %lu/%lu\n", (unsigned long)buf_used(&ctx->script), (unsigned long)buf_avail(&ctx->script));
adamc@1134 1221 printf("Page: %lu/%lu\n", (unsigned long)buf_used(&ctx->page), (unsigned long)buf_avail(&ctx->page));
adamc@1134 1222 printf("Heap: %lu/%lu\n", (unsigned long)buf_used(&ctx->heap), (unsigned long)buf_avail(&ctx->heap));
adamc@324 1223 }
adamc@324 1224
adamc@311 1225 int uw_send(uw_context ctx, int sock) {
adamc@666 1226 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462 1227
adamc@462 1228 if (n < 0)
adamc@462 1229 return n;
adamc@462 1230
adamc@462 1231 n = uw_really_send(sock, "\r\n", 2);
adamc@462 1232
adamc@462 1233 if (n < 0)
adamc@462 1234 return n;
adamc@462 1235
adamc@666 1236 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462 1237 }
adamc@462 1238
adamc@856 1239 int uw_print(uw_context ctx, int fd) {
adamc@856 1240 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856 1241
adamc@856 1242 if (n < 0)
adamc@856 1243 return n;
adamc@856 1244
adamc@856 1245 n = uw_really_write(fd, "\r\n", 2);
adamc@856 1246
adamc@856 1247 if (n < 0)
adamc@856 1248 return n;
adamc@856 1249
adamc@856 1250 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856 1251 }
adamc@856 1252
adamc@860 1253 int uw_output(uw_context ctx, int (*output)(void *data, char *buf, size_t len), void *data) {
adamc@860 1254 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860 1255
adamc@860 1256 if (n < 0)
adamc@860 1257 return n;
adamc@860 1258
adamc@860 1259 n = output(data, "\r\n", 2);
adamc@860 1260
adamc@860 1261 if (n < 0)
adamc@860 1262 return n;
adamc@860 1263
adamc@860 1264 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860 1265 }
adamc@860 1266
adamc@462 1267 static void uw_check_headers(uw_context ctx, size_t extra) {
adamc@1113 1268 ctx_buf_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462 1269 }
adamc@462 1270
adamc@462 1271 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462 1272 int len = strlen(s);
adamc@462 1273
adamc@462 1274 uw_check_headers(ctx, len + 1);
adamc@666 1275 strcpy(ctx->outHeaders.front, s);
adamc@666 1276 ctx->outHeaders.front += len;
adamc@562 1277 }
adamc@562 1278
adamc@1110 1279 void uw_clear_headers(uw_context ctx) {
adamc@1110 1280 buf_reset(&ctx->outHeaders);
adamc@1110 1281 }
adamc@1110 1282
adamc@562 1283 static void uw_check_script(uw_context ctx, size_t extra) {
adamc@1113 1284 ctx_buf_check(ctx, "script", &ctx->script, extra);
adamc@562 1285 }
adamc@562 1286
adamc@562 1287 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562 1288 int len = strlen(s);
adamc@562 1289
adamc@562 1290 uw_check_script(ctx, len + 1);
adamc@666 1291 strcpy(ctx->script.front, s);
adamc@666 1292 ctx->script.front += len;
adamc@562 1293 }
adamc@562 1294
adamc@645 1295 const char *uw_Basis_get_script(uw_context ctx, uw_unit u) {
adamc@916 1296 return "<sc>";
adamc@565 1297 }
adamc@565 1298
adamc@695 1299 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695 1300 if (s[0] == 0)
adamc@695 1301 return "";
adamc@695 1302 else {
adamc@695 1303 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695 1304 sprintf(r, " onload='%s'", s);
adamc@695 1305 return r;
adamc@695 1306 }
adamc@695 1307 }
adamc@695 1308
adamc@1042 1309 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042 1310 if (ctx->script_header[0] == 0)
adamc@1042 1311 return "";
adamc@1042 1312 else {
adamc@1042 1313 char *r = uw_malloc(ctx, 22 + strlen(s));
adamc@1042 1314 sprintf(r, " onunload='unload();%s'", s);
adamc@1042 1315 return r;
adamc@1042 1316 }
adamc@1042 1317 }
adamc@1042 1318
adamc@694 1319 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736 1320 if (ctx->client == NULL) {
adamc@736 1321 if (ctx->needs_sig) {
adamc@1094 1322 char *sig = ctx->app->cookie_sig(ctx);
adamc@736 1323 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736 1324 sprintf(r, "sig=\"%s\";", sig);
adamc@736 1325 return r;
adamc@736 1326 }
adamc@736 1327 else
adamc@736 1328 return "";
adamc@736 1329 } else {
adamc@1094 1330 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094 1331 char *r = uw_malloc(ctx, 59 + 3 * INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736 1332 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adamc@736 1333 sprintf(r, "client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adamc@682 1334 ctx->client->id,
adamc@682 1335 ctx->client->pass,
adamc@1094 1336 ctx->app->url_prefix,
adamc@1094 1337 ctx->app->timeout,
adamc@736 1338 ctx->needs_sig ? "sig=\"" : "",
adamc@736 1339 sig,
adamc@736 1340 ctx->needs_sig ? "\";" : "");
adamc@679 1341 return r;
adamc@668 1342 }
adamc@667 1343 }
adamc@667 1344
adamc@574 1345 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574 1346 char *r, *s2;
adamc@574 1347
adamc@574 1348 uw_check_heap(ctx, strlen(s) * 4 + 2);
adamc@574 1349
adamc@666 1350 r = s2 = ctx->heap.front;
adamc@574 1351 *s2++ = '"';
adamc@574 1352
adamc@574 1353 for (; *s; s++) {
adam@1286 1354 unsigned char c = *s;
adamc@574 1355
adamc@574 1356 switch (c) {
adamc@574 1357 case '"':
adamc@574 1358 strcpy(s2, "\\\"");
adamc@574 1359 s2 += 2;
adamc@574 1360 break;
adamc@1027 1361 case '\'':
adamc@1027 1362 strcpy(s2, "\\047");
adamc@1027 1363 s2 += 4;
adamc@1027 1364 break;
adamc@574 1365 case '\\':
adamc@574 1366 strcpy(s2, "\\\\");
adamc@574 1367 s2 += 2;
adamc@574 1368 break;
adamc@574 1369 default:
adam@1286 1370 if (isprint((int)c) || c >= 128)
adamc@574 1371 *s2++ = c;
adamc@574 1372 else {
adamc@574 1373 sprintf(s2, "\\%3o", c);
adamc@574 1374 s2 += 4;
adamc@574 1375 }
adamc@574 1376 }
adamc@574 1377 }
adamc@574 1378
adamc@574 1379 strcpy(s2, "\"");
adamc@910 1380 ctx->heap.front = s2 + 2;
adamc@574 1381 return r;
adamc@574 1382 }
adamc@574 1383
adam@1286 1384 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286 1385 unsigned char c = c1;
adamc@1025 1386 char *r, *s2;
adamc@1025 1387
adamc@1025 1388 uw_check_heap(ctx, 6);
adamc@1025 1389
adamc@1025 1390 r = s2 = ctx->heap.front;
adamc@1025 1391 *s2++ = '"';
adamc@1025 1392
adamc@1025 1393 switch (c) {
adamc@1025 1394 case '"':
adamc@1025 1395 strcpy(s2, "\\\"");
adamc@1025 1396 s2 += 2;
adamc@1025 1397 break;
adamc@1027 1398 case '\'':
adamc@1027 1399 strcpy(s2, "\\047");
adamc@1027 1400 s2 += 4;
adamc@1027 1401 break;
adamc@1025 1402 case '\\':
adamc@1025 1403 strcpy(s2, "\\\\");
adamc@1025 1404 s2 += 2;
adamc@1025 1405 break;
adamc@1025 1406 default:
adam@1286 1407 if (isprint((int)c) || c >= 128)
adamc@1025 1408 *s2++ = c;
adamc@1025 1409 else {
adam@1286 1410 sprintf(s2, "\\%3o", (unsigned char)c);
adamc@1025 1411 s2 += 4;
adamc@1025 1412 }
adamc@1025 1413 }
adamc@1025 1414
adamc@1025 1415 strcpy(s2, "\"");
adamc@1025 1416 ctx->heap.front = s2 + 2;
adamc@1025 1417 return r;
adamc@1025 1418 }
adamc@1025 1419
adamc@574 1420 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574 1421 char *r, *s2;
adamc@574 1422
adamc@574 1423 uw_check_script(ctx, strlen(s) * 4 + 2);
adamc@574 1424
adamc@666 1425 r = s2 = ctx->script.front;
adamc@574 1426 *s2++ = '"';
adamc@574 1427
adamc@574 1428 for (; *s; s++) {
adam@1286 1429 unsigned char c = *s;
adamc@574 1430
adamc@574 1431 switch (c) {
adamc@577 1432 case '\'':
adamc@1027 1433 strcpy(s2, "\\");
adamc@574 1434 s2 += 2;
adamc@574 1435 break;
adamc@574 1436 case '\\':
adamc@574 1437 strcpy(s2, "\\\\");
adamc@574 1438 s2 += 2;
adamc@574 1439 break;
adamc@574 1440 default:
adam@1286 1441 if (isprint((int)c) || c >= 128)
adamc@574 1442 *s2++ = c;
adamc@574 1443 else {
adamc@574 1444 sprintf(s2, "\\%3o", c);
adamc@574 1445 s2 += 4;
adamc@574 1446 }
adamc@574 1447 }
adamc@574 1448 }
adamc@574 1449
adamc@574 1450 strcpy(s2, "\"");
adamc@666 1451 ctx->script.front = s2 + 1;
adamc@574 1452 return r;
adamc@574 1453 }
adamc@574 1454
adamc@682 1455 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1456 if (ctx->client == NULL || chn.cli != ctx->client->id)
adamc@682 1457 return "null";
adamc@682 1458 else {
adamc@682 1459 int len;
adamc@682 1460 char *r;
adamc@682 1461
adamc@682 1462 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1463 r = ctx->heap.front;
adamc@682 1464 sprintf(r, "%u%n", chn.chn, &len);
adamc@682 1465 ctx->heap.front += len+1;
adamc@682 1466 return r;
adamc@682 1467 }
adamc@682 1468 }
adamc@682 1469
adamc@577 1470 uw_Basis_int uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577 1471 int len;
adamc@577 1472 size_t s_len = strlen(s);
adamc@562 1473
adamc@970 1474 uw_check_script(ctx, 18 + INTS_MAX + s_len);
adamc@970 1475 sprintf(ctx->script.front, "var s%d=sc(exec(%n", ctx->source_count, &len);
adamc@666 1476 ctx->script.front += len;
adamc@666 1477 strcpy(ctx->script.front, s);
adamc@666 1478 ctx->script.front += s_len;
adamc@970 1479 strcpy(ctx->script.front, "));");
adamc@972 1480 ctx->script.front += 3;
adamc@562 1481
adamc@565 1482 return ctx->source_count++;
adamc@117 1483 }
adamc@117 1484
adamc@577 1485 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_int n, uw_Basis_string s) {
adamc@577 1486 int len;
adamc@577 1487 size_t s_len = strlen(s);
adamc@577 1488
adamc@970 1489 uw_check_script(ctx, 12 + INTS_MAX + s_len);
adamc@970 1490 sprintf(ctx->script.front, "sv(s%d,exec(%n", (int)n, &len);
adamc@666 1491 ctx->script.front += len;
adamc@666 1492 strcpy(ctx->script.front, s);
adamc@666 1493 ctx->script.front += s_len;
adamc@970 1494 strcpy(ctx->script.front, "));");
adamc@972 1495 ctx->script.front += 3;
adamc@577 1496
adamc@577 1497 return uw_unit_v;
adamc@577 1498 }
adamc@577 1499
adamc@311 1500 static void uw_check(uw_context ctx, size_t extra) {
adamc@1113 1501 ctx_buf_check(ctx, "page", &ctx->page, extra);
adamc@117 1502 }
adamc@117 1503
adamc@311 1504 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666 1505 *(ctx->page.front)++ = c;
adamc@117 1506 }
adamc@117 1507
adamc@311 1508 void uw_writec(uw_context ctx, char c) {
adamc@311 1509 uw_check(ctx, 1);
adamc@311 1510 uw_writec_unsafe(ctx, c);
adamc@117 1511 }
adamc@117 1512
adamc@311 1513 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117 1514 int len = strlen(s);
adamc@666 1515 memcpy(ctx->page.front, s, len);
adamc@666 1516 ctx->page.front += len;
adamc@117 1517 }
adamc@117 1518
adamc@311 1519 void uw_write(uw_context ctx, const char* s) {
adamc@311 1520 uw_check(ctx, strlen(s) + 1);
adamc@311 1521 uw_write_unsafe(ctx, s);
adamc@666 1522 *ctx->page.front = 0;
adamc@102 1523 }
adamc@106 1524
adamc@311 1525 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136 1526 char *result;
adamc@136 1527 int len;
adamc@311 1528 uw_check_heap(ctx, INTS_MAX);
adamc@666 1529 result = ctx->heap.front;
adamc@276 1530 sprintf(result, "%lld%n", n, &len);
adamc@666 1531 ctx->heap.front += len+1;
adamc@136 1532 return result;
adamc@106 1533 }
adamc@106 1534
adamc@311 1535 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136 1536 char *result;
adamc@136 1537 int len;
adamc@311 1538 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1539 result = ctx->heap.front;
adamc@136 1540 sprintf(result, "%g%n", n, &len);
adamc@666 1541 ctx->heap.front += len+1;
adamc@136 1542 return result;
adamc@106 1543 }
adamc@106 1544
adamc@311 1545 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136 1546 int len = strlen(s);
adamc@136 1547 char *result, *p;
adamc@311 1548 uw_check_heap(ctx, len * 6 + 1);
adamc@136 1549
adamc@666 1550 result = p = ctx->heap.front;
adamc@136 1551
adamc@136 1552 for (; *s; s++) {
adamc@1054 1553 unsigned char c = *s;
adamc@136 1554
adamc@136 1555 if (c == '"') {
adamc@136 1556 strcpy(p, "&quot;");
adamc@136 1557 p += 6;
adamc@136 1558 } else if (c == '&') {
adamc@136 1559 strcpy(p, "&amp;");
adamc@136 1560 p += 5;
adamc@136 1561 }
adamc@1059 1562 else
adamc@136 1563 *p++ = c;
adamc@136 1564 }
adamc@136 1565
adamc@137 1566 *p++ = 0;
adamc@666 1567 ctx->heap.front = p;
adamc@136 1568 return result;
adamc@106 1569 }
adamc@106 1570
adamc@1011 1571 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011 1572 char *result, *p;
adamc@1011 1573 uw_check_heap(ctx, 7);
adamc@1011 1574
adamc@1011 1575 result = p = ctx->heap.front;
adamc@1011 1576
adamc@1011 1577 if (c == '"') {
adamc@1011 1578 strcpy(p, "&quot;");
adamc@1011 1579 p += 6;
adamc@1011 1580 } else if (c == '&') {
adamc@1011 1581 strcpy(p, "&amp;");
adamc@1011 1582 p += 5;
adamc@1011 1583 }
adamc@1059 1584 else
adamc@1011 1585 *p++ = c;
adamc@1011 1586
adamc@1011 1587 *p++ = 0;
adamc@1011 1588 ctx->heap.front = p;
adamc@1011 1589 return result;
adamc@1011 1590 }
adamc@1011 1591
adamc@721 1592 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721 1593 return s;
adamc@721 1594 }
adamc@721 1595
adamc@311 1596 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117 1597 int len;
adamc@117 1598
adamc@666 1599 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1600 ctx->page.front += len;
adamc@106 1601 }
adamc@106 1602
adamc@428 1603 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311 1604 uw_check(ctx, INTS_MAX);
adamc@311 1605 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428 1606
adamc@428 1607 return uw_unit_v;
adamc@106 1608 }
adamc@106 1609
adamc@428 1610 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117 1611 int len;
adamc@117 1612
adamc@311 1613 uw_check(ctx, FLOATS_MAX);
adamc@666 1614 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1615 ctx->page.front += len;
adamc@428 1616
adamc@428 1617 return uw_unit_v;
adamc@117 1618 }
adamc@117 1619
adamc@428 1620 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311 1621 uw_check(ctx, strlen(s) * 6);
adamc@117 1622
adamc@106 1623 for (; *s; s++) {
adamc@1054 1624 unsigned char c = *s;
adamc@106 1625
adamc@106 1626 if (c == '"')
adamc@311 1627 uw_write_unsafe(ctx, "&quot;");
adamc@136 1628 else if (c == '&')
adamc@311 1629 uw_write_unsafe(ctx, "&amp;");
adamc@1059 1630 else
adamc@311 1631 uw_writec_unsafe(ctx, c);
adamc@106 1632 }
adamc@428 1633
adamc@428 1634 return uw_unit_v;
adamc@106 1635 }
adamc@120 1636
adamc@1011 1637 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011 1638 uw_check(ctx, 6);
adamc@1011 1639
adamc@1011 1640 if (c == '"')
adamc@1011 1641 uw_write_unsafe(ctx, "&quot;");
adamc@1011 1642 else if (c == '&')
adamc@1011 1643 uw_write_unsafe(ctx, "&amp;");
adamc@1059 1644 else
adamc@1011 1645 uw_writec_unsafe(ctx, c);
adamc@1011 1646
adamc@1011 1647 return uw_unit_v;
adamc@1011 1648 }
adamc@1011 1649
adamc@120 1650
adamc@311 1651 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137 1652 int len;
adamc@137 1653 char *r;
adamc@137 1654
adamc@311 1655 uw_check_heap(ctx, INTS_MAX);
adamc@666 1656 r = ctx->heap.front;
adamc@276 1657 sprintf(r, "%lld%n", n, &len);
adamc@666 1658 ctx->heap.front += len+1;
adamc@137 1659 return r;
adamc@120 1660 }
adamc@120 1661
adamc@682 1662 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1663 if (ctx->client == NULL || chn.cli != ctx->client->id)
adamc@682 1664 return "";
adamc@682 1665 else {
adamc@682 1666 int len;
adamc@682 1667 char *r;
adamc@679 1668
adamc@682 1669 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1670 r = ctx->heap.front;
adamc@682 1671 sprintf(r, "%u%n", chn.chn, &len);
adamc@682 1672 ctx->heap.front += len+1;
adamc@682 1673 return r;
adamc@682 1674 }
adamc@679 1675 }
adamc@679 1676
adamc@311 1677 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137 1678 int len;
adamc@137 1679 char *r;
adamc@137 1680
adamc@311 1681 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1682 r = ctx->heap.front;
adamc@137 1683 sprintf(r, "%g%n", n, &len);
adamc@666 1684 ctx->heap.front += len+1;
adamc@137 1685 return r;
adamc@120 1686 }
adamc@120 1687
adamc@311 1688 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137 1689 char *r, *p;
adamc@137 1690
adamc@925 1691 if (s[0] == '\0')
adamc@925 1692 return "_";
adamc@925 1693
adamc@925 1694 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925 1695
adamc@925 1696 r = p = ctx->heap.front;
adamc@925 1697 if (s[0] == '_')
adamc@925 1698 *p++ = '_';
adamc@925 1699
adamc@925 1700 for (; *s; s++) {
adamc@1087 1701 unsigned char c = *s;
adamc@137 1702
adamc@137 1703 if (c == ' ')
adamc@137 1704 *p++ = '+';
adamc@137 1705 else if (isalnum(c))
adamc@137 1706 *p++ = c;
adamc@137 1707 else {
adamc@1259 1708 sprintf(p, ".%02X", c);
adamc@137 1709 p += 3;
adamc@137 1710 }
adamc@137 1711 }
adamc@137 1712
adamc@137 1713 *p++ = 0;
adamc@666 1714 ctx->heap.front = p;
adamc@137 1715 return r;
adamc@120 1716 }
adamc@120 1717
adamc@311 1718 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 1719 if (b == uw_Basis_False)
adamc@186 1720 return "0";
adamc@186 1721 else
adamc@186 1722 return "1";
adamc@186 1723 }
adamc@186 1724
adamc@311 1725 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120 1726 int len;
adamc@120 1727
adamc@666 1728 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1729 ctx->page.front += len;
adamc@120 1730 }
adamc@120 1731
adamc@428 1732 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311 1733 uw_check(ctx, INTS_MAX);
adamc@311 1734 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428 1735
adamc@428 1736 return uw_unit_v;
adamc@120 1737 }
adamc@120 1738
adamc@682 1739 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1740 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682 1741 int len;
adamc@682 1742
adamc@682 1743 uw_check(ctx, INTS_MAX + 1);
adamc@682 1744 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682 1745 ctx->page.front += len;
adamc@682 1746 }
adamc@682 1747
adamc@679 1748 return uw_unit_v;
adamc@679 1749 }
adamc@679 1750
adamc@428 1751 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120 1752 int len;
adamc@120 1753
adamc@311 1754 uw_check(ctx, FLOATS_MAX);
adamc@666 1755 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1756 ctx->page.front += len;
adamc@428 1757
adamc@428 1758 return uw_unit_v;
adamc@120 1759 }
adamc@120 1760
adamc@488 1761 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@488 1762 return uw_Basis_urlifyInt(ctx, t);
adamc@488 1763 }
adamc@488 1764
adamc@428 1765 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925 1766 if (s[0] == '\0') {
adamc@925 1767 uw_check(ctx, 1);
adamc@925 1768 uw_writec_unsafe(ctx, '_');
adamc@925 1769 return uw_unit_v;
adamc@925 1770 }
adamc@925 1771
adamc@925 1772 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925 1773
adamc@925 1774 if (s[0] == '_')
adamc@925 1775 uw_writec_unsafe(ctx, '_');
adamc@120 1776
adamc@120 1777 for (; *s; s++) {
adamc@1087 1778 unsigned char c = *s;
adamc@120 1779
adamc@120 1780 if (c == ' ')
adamc@311 1781 uw_writec_unsafe(ctx, '+');
adamc@120 1782 else if (isalnum(c))
adamc@311 1783 uw_writec_unsafe(ctx, c);
adamc@120 1784 else {
adamc@1259 1785 sprintf(ctx->page.front, ".%02X", c);
adamc@666 1786 ctx->page.front += 3;
adamc@120 1787 }
adamc@120 1788 }
adamc@428 1789
adamc@428 1790 return uw_unit_v;
adamc@120 1791 }
adamc@120 1792
adamc@428 1793 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311 1794 if (b == uw_Basis_False)
adamc@311 1795 uw_writec(ctx, '0');
adamc@186 1796 else
adamc@311 1797 uw_writec(ctx, '1');
adamc@428 1798
adamc@428 1799 return uw_unit_v;
adamc@186 1800 }
adamc@186 1801
adamc@120 1802
adamc@311 1803 static char *uw_unurlify_advance(char *s) {
adamc@144 1804 char *new_s = strchr(s, '/');
adamc@120 1805
adamc@120 1806 if (new_s)
adamc@120 1807 *new_s++ = 0;
adamc@120 1808 else
adamc@144 1809 new_s = strchr(s, 0);
adamc@144 1810
adamc@144 1811 return new_s;
adamc@144 1812 }
adamc@144 1813
adamc@311 1814 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311 1815 char *new_s = uw_unurlify_advance(*s);
adamc@311 1816 uw_Basis_int r;
adamc@120 1817
adamc@276 1818 r = atoll(*s);
adamc@120 1819 *s = new_s;
adamc@120 1820 return r;
adamc@120 1821 }
adamc@120 1822
adamc@311 1823 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311 1824 char *new_s = uw_unurlify_advance(*s);
adamc@311 1825 uw_Basis_float r;
adamc@120 1826
adamc@120 1827 r = atof(*s);
adamc@120 1828 *s = new_s;
adamc@120 1829 return r;
adamc@120 1830 }
adamc@120 1831
adamc@488 1832 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adamc@488 1833 return uw_Basis_unurlifyInt(ctx, s);
adamc@488 1834 }
adamc@488 1835
adamc@1023 1836 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char *r, char *s) {
adamc@927 1837 char *s1, *s2 = s;
adamc@144 1838 int n;
adamc@136 1839
adamc@1023 1840 if (!fromClient) {
adamc@1023 1841 if (*s2 == '_')
adamc@1023 1842 ++s2;
adamc@1259 1843 else if ((s2[0] == '%' || s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' || s2[2] == 'F'))
adamc@1023 1844 s2 += 3;
adamc@1023 1845 }
adamc@925 1846
adamc@927 1847 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087 1848 unsigned char c = *s2;
adamc@136 1849
adamc@136 1850 switch (c) {
adamc@136 1851 case '+':
adamc@136 1852 *s1 = ' ';
adamc@136 1853 break;
adamc@136 1854 case '%':
adamc@169 1855 if (s2[1] == 0)
adamc@311 1856 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169 1857 if (s2[2] == 0)
adamc@311 1858 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169 1859 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@311 1860 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@136 1861 *s1 = n;
adamc@136 1862 s2 += 2;
adamc@136 1863 break;
adamc@1259 1864 case '.':
adamc@1259 1865 if (!fromClient) {
adamc@1259 1866 if (s2[1] == 0)
adamc@1259 1867 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259 1868 if (s2[2] == 0)
adamc@1259 1869 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259 1870 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@1259 1871 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@1259 1872 *s1 = n;
adamc@1259 1873 s2 += 2;
adamc@1259 1874 break;
adamc@1259 1875 }
adamc@136 1876 default:
adamc@136 1877 *s1 = c;
adamc@136 1878 }
adamc@136 1879 }
adamc@136 1880 *s1++ = 0;
adamc@144 1881 return s1;
adamc@144 1882 }
adamc@144 1883
adamc@311 1884 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311 1885 char *new_s = uw_unurlify_advance(*s);
adamc@311 1886 uw_Basis_bool r;
adamc@186 1887
adamc@186 1888 if (*s[0] == 0 || !strcmp(*s, "0") || !strcmp(*s, "off"))
adamc@311 1889 r = uw_Basis_False;
adamc@186 1890 else
adamc@311 1891 r = uw_Basis_True;
adamc@186 1892
adamc@186 1893 *s = new_s;
adamc@186 1894 return r;
adamc@186 1895 }
adamc@186 1896
adamc@311 1897 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311 1898 char *new_s = uw_unurlify_advance(*s);
adamc@1134 1899 char *r;
adamc@1134 1900 int len;
adamc@144 1901
adamc@200 1902 len = strlen(*s);
adamc@311 1903 uw_check_heap(ctx, len + 1);
adamc@144 1904
adamc@666 1905 r = ctx->heap.front;
adamc@1023 1906 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023 1907 *s = new_s;
adamc@1023 1908 return r;
adamc@1023 1909 }
adamc@1023 1910
adamc@1109 1911 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109 1912 *s = uw_unurlify_advance(*s);
adamc@1109 1913 return uw_unit_v;
adamc@1109 1914 }
adamc@1109 1915
adamc@1023 1916 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023 1917 char *new_s = uw_unurlify_advance(*s);
adamc@1134 1918 char *r;
adamc@1134 1919 int len;
adamc@1023 1920
adamc@1023 1921 len = strlen(*s);
adamc@1023 1922 uw_check_heap(ctx, len + 1);
adamc@1023 1923
adamc@1023 1924 r = ctx->heap.front;
adamc@1023 1925 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136 1926 *s = new_s;
adamc@136 1927 return r;
adamc@120 1928 }
adamc@135 1929
adamc@135 1930
adamc@311 1931 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286 1932 int len;
adamc@286 1933 char *r;
adamc@286 1934
adamc@311 1935 uw_check_heap(ctx, INTS_MAX);
adamc@666 1936 r = ctx->heap.front;
adamc@286 1937 sprintf(r, "%lld%n", n, &len);
adamc@666 1938 ctx->heap.front += len+1;
adamc@286 1939 return r;
adamc@286 1940 }
adamc@286 1941
adamc@428 1942 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286 1943 int len;
adamc@286 1944
adamc@311 1945 uw_check(ctx, INTS_MAX);
adamc@666 1946 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1947 ctx->page.front += len;
adamc@428 1948
adamc@428 1949 return uw_unit_v;
adamc@286 1950 }
adamc@286 1951
adamc@311 1952 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286 1953 int len;
adamc@286 1954 char *r;
adamc@286 1955
adamc@311 1956 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1957 r = ctx->heap.front;
adamc@286 1958 sprintf(r, "%g%n", n, &len);
adamc@666 1959 ctx->heap.front += len+1;
adamc@286 1960 return r;
adamc@286 1961 }
adamc@286 1962
adamc@428 1963 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286 1964 int len;
adamc@286 1965
adamc@311 1966 uw_check(ctx, FLOATS_MAX);
adamc@666 1967 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1968 ctx->page.front += len;
adamc@428 1969
adamc@428 1970 return uw_unit_v;
adamc@286 1971 }
adamc@286 1972
adamc@311 1973 char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137 1974 char *r, *s2;
adamc@137 1975
adamc@311 1976 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137 1977
adamc@666 1978 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054 1979 unsigned char c = *s;
adamc@137 1980
adamc@137 1981 switch (c) {
adamc@137 1982 case '<':
adamc@137 1983 strcpy(s2, "&lt;");
adamc@137 1984 s2 += 4;
adamc@137 1985 break;
adamc@137 1986 case '&':
adamc@137 1987 strcpy(s2, "&amp;");
adamc@137 1988 s2 += 5;
adamc@137 1989 break;
adamc@137 1990 default:
adamc@1059 1991 *s2++ = c;
adamc@137 1992 }
adamc@137 1993 }
adamc@137 1994
adamc@137 1995 *s2++ = 0;
adamc@666 1996 ctx->heap.front = s2;
adamc@137 1997 return r;
adamc@135 1998 }
adamc@135 1999
adamc@428 2000 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321 2001 uw_check(ctx, strlen(s) * 6);
adamc@135 2002
adamc@135 2003 for (; *s; s++) {
adamc@1054 2004 unsigned char c = *s;
adamc@135 2005
adamc@135 2006 switch (c) {
adamc@135 2007 case '<':
adamc@311 2008 uw_write_unsafe(ctx, "&lt;");
adamc@135 2009 break;
adamc@135 2010 case '&':
adamc@311 2011 uw_write_unsafe(ctx, "&amp;");
adamc@135 2012 break;
adamc@135 2013 default:
adamc@1059 2014 uw_writec_unsafe(ctx, c);
adamc@135 2015 }
adamc@135 2016 }
adamc@428 2017
adamc@428 2018 return uw_unit_v;
adamc@135 2019 }
adamc@180 2020
adamc@311 2021 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 2022 if (b == uw_Basis_False)
adamc@286 2023 return "False";
adamc@286 2024 else
adamc@286 2025 return "True";
adamc@286 2026 }
adamc@286 2027
adamc@428 2028 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311 2029 if (b == uw_Basis_False) {
adamc@311 2030 uw_check(ctx, 6);
adamc@666 2031 strcpy(ctx->page.front, "False");
adamc@666 2032 ctx->page.front += 5;
adamc@286 2033 } else {
adamc@311 2034 uw_check(ctx, 5);
adamc@666 2035 strcpy(ctx->page.front, "True");
adamc@666 2036 ctx->page.front += 4;
adamc@286 2037 }
adamc@428 2038
adamc@428 2039 return uw_unit_v;
adamc@286 2040 }
adamc@286 2041
adamc@436 2042 #define TIME_FMT "%x %X"
adamc@438 2043 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436 2044
adamc@436 2045 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436 2046 size_t len;
adamc@436 2047 char *r;
adamc@436 2048 struct tm stm;
adamc@436 2049
adamc@436 2050 if (localtime_r(&t, &stm)) {
adamc@436 2051 uw_check_heap(ctx, TIMES_MAX);
adamc@666 2052 r = ctx->heap.front;
adamc@436 2053 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 2054 ctx->heap.front += len+1;
adamc@436 2055 return r;
adamc@436 2056 } else
adamc@436 2057 return "<i>Invalid time</i>";
adamc@436 2058 }
adamc@436 2059
adamc@436 2060 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436 2061 size_t len;
adamc@436 2062 char *r;
adamc@436 2063 struct tm stm;
adamc@436 2064
adamc@436 2065 if (localtime_r(&t, &stm)) {
adamc@436 2066 uw_check(ctx, TIMES_MAX);
adamc@666 2067 r = ctx->page.front;
adamc@436 2068 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 2069 ctx->page.front += len;
adamc@436 2070 } else {
adamc@436 2071 uw_check(ctx, 20);
adamc@666 2072 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666 2073 ctx->page.front += 19;
adamc@436 2074 }
adamc@436 2075
adamc@436 2076 return uw_unit_v;
adamc@436 2077 }
adamc@436 2078
adamc@821 2079 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821 2080 if (n >= 0 && n < strlen(s))
adamc@821 2081 return s[n];
adamc@821 2082 else
adamc@821 2083 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adamc@821 2084 }
adamc@821 2085
adamc@821 2086 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821 2087 if (n >= 0 && n < strlen(s))
adamc@821 2088 return &s[n];
adamc@821 2089 else
adamc@821 2090 uw_error(ctx, FATAL, "Out-of-bounds strsuffix");
adamc@821 2091 }
adamc@821 2092
adamc@828 2093 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828 2094 return strlen(s);
adamc@828 2095 }
adamc@828 2096
adamc@829 2097 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829 2098 return strchr(s, ch);
adamc@829 2099 }
adamc@829 2100
adamc@831 2101 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831 2102 return strcspn(s, chs);
adamc@831 2103 }
adamc@831 2104
adamc@829 2105 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829 2106 uw_Basis_string r = strchr(s, ch);
adamc@829 2107 if (r == NULL)
adamc@829 2108 return NULL;
adamc@829 2109 else {
adamc@829 2110 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829 2111 *nr = r - s;
adamc@829 2112 return nr;
adamc@829 2113 }
adamc@829 2114 }
adamc@829 2115
adamc@311 2116 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828 2117 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180 2118 char *s;
adamc@180 2119
adamc@311 2120 uw_check_heap(ctx, len);
adamc@180 2121
adamc@666 2122 s = ctx->heap.front;
adamc@180 2123
adamc@180 2124 strcpy(s, s1);
adamc@180 2125 strcat(s, s2);
adamc@666 2126 ctx->heap.front += len;
adamc@180 2127
adamc@180 2128 return s;
adamc@180 2129 }
adamc@278 2130
adamc@829 2131 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829 2132 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829 2133
adamc@829 2134 if (start < 0)
adamc@829 2135 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829 2136 if (len < 0)
adamc@829 2137 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829 2138 if (start + len > full_len)
adamc@829 2139 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829 2140
adamc@829 2141 if (start + len == full_len)
adamc@829 2142 return &s[start];
adamc@829 2143 else {
adamc@829 2144 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959 2145 memcpy(r, s+start, len);
adamc@829 2146 r[len] = 0;
adamc@829 2147 return r;
adamc@829 2148 }
adamc@829 2149
adamc@829 2150 }
adamc@829 2151
adamc@1023 2152 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023 2153 char *r;
adamc@1023 2154
adamc@1023 2155 uw_check_heap(ctx, 2);
adamc@1023 2156 r = ctx->heap.front;
adamc@1023 2157 r[0] = ch;
adamc@1023 2158 r[1] = 0;
adamc@1023 2159
adamc@1023 2160 ctx->heap.front += 2;
adamc@1023 2161
adamc@1023 2162 return r;
adamc@1023 2163 }
adamc@1023 2164
adamc@737 2165 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828 2166 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278 2167 char *s;
adamc@278 2168
adamc@311 2169 uw_check_heap(ctx, len);
adamc@278 2170
adamc@666 2171 s = ctx->heap.front;
adamc@278 2172
adamc@278 2173 strcpy(s, s1);
adamc@666 2174 ctx->heap.front += len;
adamc@278 2175
adamc@278 2176 return s;
adamc@278 2177 }
adamc@280 2178
adam@1295 2179 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295 2180 if (ctx->error_message[0]) {
adam@1295 2181 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295 2182 ctx->error_message[0] = 0;
adam@1295 2183 return s;
adam@1295 2184 } else
adam@1295 2185 return NULL;
adam@1295 2186 }
adam@1295 2187
adamc@737 2188 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493 2189 if (s1)
adamc@737 2190 return uw_strdup(ctx, s1);
adamc@493 2191 else
adamc@493 2192 return NULL;
adamc@493 2193 }
adamc@493 2194
adamc@742 2195 char *uw_memdup(uw_context ctx, const char *p, size_t len) {
adamc@742 2196 char *r = uw_malloc(ctx, len);
adamc@742 2197 memcpy(r, p, len);
adamc@742 2198 return r;
adamc@742 2199 }
adamc@280 2200
adamc@879 2201 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879 2202
adamc@311 2203 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281 2204 int len;
adamc@281 2205 char *r;
adamc@281 2206
adamc@311 2207 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666 2208 r = ctx->heap.front;
adamc@879 2209 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666 2210 ctx->heap.front += len+1;
adamc@281 2211 return r;
adamc@281 2212 }
adamc@281 2213
adamc@467 2214 char *uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int *n) {
adamc@467 2215 if (n == NULL)
adamc@467 2216 return "NULL";
adamc@467 2217 else
adamc@467 2218 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467 2219 }
adamc@467 2220
adamc@879 2221 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879 2222
adamc@311 2223 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281 2224 int len;
adamc@281 2225 char *r;
adamc@281 2226
adamc@311 2227 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666 2228 r = ctx->heap.front;
adamc@879 2229 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666 2230 ctx->heap.front += len+1;
adamc@281 2231 return r;
adamc@281 2232 }
adamc@281 2233
adamc@467 2234 char *uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float *n) {
adamc@467 2235 if (n == NULL)
adamc@467 2236 return "NULL";
adamc@467 2237 else
adamc@467 2238 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467 2239 }
adamc@467 2240
adamc@879 2241 int uw_Estrings = 1;
adamc@879 2242 char *uw_sqlsuffixString = "::text";
adamc@1011 2243 char *uw_sqlsuffixChar = "::char";
adamc@281 2244
adamc@311 2245 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280 2246 char *r, *s2;
adamc@280 2247
adamc@879 2248 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280 2249
adamc@666 2250 r = s2 = ctx->heap.front;
adamc@879 2251 if (uw_Estrings)
adamc@879 2252 *s2++ = 'E';
adamc@280 2253 *s2++ = '\'';
adamc@280 2254
adamc@280 2255 for (; *s; s++) {
adamc@280 2256 char c = *s;
adamc@280 2257
adamc@280 2258 switch (c) {
adamc@280 2259 case '\'':
adamc@885 2260 if (uw_Estrings)
adamc@885 2261 strcpy(s2, "\\'");
adamc@885 2262 else
adamc@885 2263 strcpy(s2, "''");
adamc@280 2264 s2 += 2;
adamc@280 2265 break;
adamc@280 2266 case '\\':
adamc@885 2267 if (uw_Estrings) {
adamc@885 2268 strcpy(s2, "\\\\");
adamc@885 2269 s2 += 2;
adamc@885 2270 } else
adamc@885 2271 *s2++ = '\\';
adamc@280 2272 break;
adamc@280 2273 default:
adamc@1150 2274 if (isprint((int)c))
adamc@280 2275 *s2++ = c;
adamc@879 2276 else if (uw_Estrings) {
adamc@737 2277 sprintf(s2, "\\%03o", c);
adamc@280 2278 s2 += 4;
adamc@280 2279 }
adamc@879 2280 else
adamc@879 2281 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280 2282 }
adamc@280 2283 }
adamc@280 2284
adamc@879 2285 *s2++ = '\'';
adamc@879 2286 strcpy(s2, uw_sqlsuffixString);
adamc@879 2287 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280 2288 return r;
adamc@280 2289 }
adamc@281 2290
adamc@1011 2291 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011 2292 char *r, *s2;
adamc@1011 2293
adamc@1011 2294 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011 2295
adamc@1011 2296 r = s2 = ctx->heap.front;
adamc@1011 2297 if (uw_Estrings)
adamc@1011 2298 *s2++ = 'E';
adamc@1011 2299 *s2++ = '\'';
adamc@1011 2300
adamc@1011 2301 switch (c) {
adamc@1011 2302 case '\'':
adamc@1011 2303 if (uw_Estrings)
adamc@1011 2304 strcpy(s2, "\\'");
adamc@1011 2305 else
adamc@1011 2306 strcpy(s2, "''");
adamc@1011 2307 s2 += 2;
adamc@1011 2308 break;
adamc@1011 2309 case '\\':
adamc@1011 2310 if (uw_Estrings) {
adamc@1011 2311 strcpy(s2, "\\\\");
adamc@1011 2312 s2 += 2;
adamc@1011 2313 } else
adamc@1011 2314 *s2++ = '\\';
adamc@1011 2315 break;
adamc@1011 2316 default:
adamc@1150 2317 if (isprint((int)c))
adamc@1011 2318 *s2++ = c;
adamc@1011 2319 else if (uw_Estrings) {
adamc@1011 2320 sprintf(s2, "\\%03o", c);
adamc@1011 2321 s2 += 4;
adamc@1011 2322 }
adamc@1011 2323 else
adamc@1011 2324 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011 2325 }
adamc@1011 2326
adamc@1011 2327 *s2++ = '\'';
adamc@1011 2328 strcpy(s2, uw_sqlsuffixChar);
adamc@1011 2329 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011 2330 return r;
adamc@1011 2331 }
adamc@1011 2332
adamc@879 2333 char *uw_sqlsuffixBlob = "::bytea";
adamc@879 2334
adamc@737 2335 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737 2336 char *r, *s2;
adamc@737 2337 size_t i;
adamc@737 2338
adamc@879 2339 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737 2340
adamc@737 2341 r = s2 = ctx->heap.front;
adamc@879 2342 if (uw_Estrings)
adamc@879 2343 *s2++ = 'E';
adamc@737 2344 *s2++ = '\'';
adamc@737 2345
adamc@737 2346 for (i = 0; i < b.size; ++i) {
adamc@737 2347 char c = b.data[i];
adamc@737 2348
adamc@737 2349 switch (c) {
adamc@737 2350 case '\'':
adamc@885 2351 if (uw_Estrings)
adamc@885 2352 strcpy(s2, "\\'");
adamc@885 2353 else
adamc@885 2354 strcpy(s2, "''");
adamc@737 2355 s2 += 2;
adamc@737 2356 break;
adamc@737 2357 case '\\':
adamc@885 2358 if (uw_Estrings) {
adamc@885 2359 strcpy(s2, "\\\\\\\\");
adamc@885 2360 s2 += 4;
adamc@885 2361 } else
adamc@885 2362 *s2++ = '\\';
adamc@737 2363 break;
adamc@737 2364 default:
adamc@1150 2365 if (isprint((int)c))
adamc@737 2366 *s2++ = c;
adamc@879 2367 else if (uw_Estrings) {
adamc@737 2368 sprintf(s2, "\\\\%03o", c);
adamc@737 2369 s2 += 5;
adamc@737 2370 }
adamc@879 2371 else
adamc@879 2372 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737 2373 }
adamc@737 2374 }
adamc@737 2375
adamc@879 2376 *s2++ = '\'';
adamc@879 2377 strcpy(s2, uw_sqlsuffixBlob);
adamc@879 2378 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737 2379 return r;
adamc@737 2380 }
adamc@737 2381
adamc@682 2382 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 2383 int len;
adamc@682 2384 char *r;
adamc@682 2385 unsigned long long combo = ((unsigned long long)chn.cli << 32) | chn.chn;
adamc@682 2386
adamc@682 2387 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682 2388 r = ctx->heap.front;
adamc@879 2389 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682 2390 ctx->heap.front += len+1;
adamc@682 2391 return r;
adamc@682 2392 }
adamc@682 2393
adamc@682 2394 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 2395 int len;
adamc@682 2396 char *r;
adamc@682 2397 unsigned long long combo = ((unsigned long long)chn.cli << 32) | chn.chn;
adamc@682 2398
adamc@682 2399 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 2400 r = ctx->heap.front;
adamc@682 2401 sprintf(r, "%lld%n", combo, &len);
adamc@682 2402 ctx->heap.front += len+1;
adamc@682 2403 return r;
adamc@682 2404 }
adamc@682 2405
adamc@879 2406 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879 2407
adamc@682 2408 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682 2409 int len;
adamc@682 2410 char *r;
adamc@682 2411
adamc@682 2412 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682 2413 r = ctx->heap.front;
adamc@879 2414 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682 2415 ctx->heap.front += len+1;
adamc@682 2416 return r;
adamc@682 2417 }
adamc@682 2418
adamc@682 2419 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682 2420 int len;
adamc@682 2421 char *r;
adamc@682 2422
adamc@682 2423 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 2424 r = ctx->heap.front;
adamc@682 2425 sprintf(r, "%u%n", cli, &len);
adamc@682 2426 ctx->heap.front += len+1;
adamc@682 2427 return r;
adamc@682 2428 }
adamc@682 2429
adamc@467 2430 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467 2431 if (s == NULL)
adamc@467 2432 return "NULL";
adamc@467 2433 else
adamc@467 2434 return uw_Basis_sqlifyString(ctx, s);
adamc@467 2435 }
adamc@467 2436
adamc@311 2437 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 2438 if (b == uw_Basis_False)
adamc@281 2439 return "FALSE";
adamc@281 2440 else
adamc@281 2441 return "TRUE";
adamc@281 2442 }
adamc@282 2443
adamc@467 2444 char *uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool *b) {
adamc@467 2445 if (b == NULL)
adamc@467 2446 return "NULL";
adamc@467 2447 else
adamc@467 2448 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467 2449 }
adamc@467 2450
adamc@439 2451 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439 2452 size_t len;
adamc@682 2453 char *r, *s;
adamc@682 2454 struct tm stm;
adamc@682 2455
adamc@682 2456 if (localtime_r(&t, &stm)) {
adamc@682 2457 s = uw_malloc(ctx, TIMES_MAX);
adamc@682 2458 len = strftime(s, TIMES_MAX, TIME_FMT, &stm);
adamc@682 2459 r = uw_malloc(ctx, len + 14);
adamc@682 2460 sprintf(r, "'%s'::timestamp", s);
adamc@682 2461 return r;
adamc@682 2462 } else
adamc@682 2463 return "<Invalid time>";
adamc@682 2464 }
adamc@682 2465
adamc@682 2466 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682 2467 size_t len;
adamc@439 2468 char *r;
adamc@439 2469 struct tm stm;
adamc@439 2470
adamc@439 2471 if (localtime_r(&t, &stm)) {
adamc@439 2472 uw_check_heap(ctx, TIMES_MAX);
adamc@666 2473 r = ctx->heap.front;
adamc@439 2474 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 2475 ctx->heap.front += len+1;
adamc@439 2476 return r;
adamc@439 2477 } else
adamc@439 2478 return "<Invalid time>";
adamc@439 2479 }
adamc@439 2480
adamc@467 2481 char *uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time *t) {
adamc@467 2482 if (t == NULL)
adamc@467 2483 return "NULL";
adamc@467 2484 else
adamc@467 2485 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467 2486 }
adamc@467 2487
adamc@311 2488 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311 2489 static uw_Basis_int true = 1;
adamc@311 2490 static uw_Basis_int false = 0;
adamc@282 2491
adamc@311 2492 if (b == uw_Basis_False)
adamc@282 2493 return (char *)&false;
adamc@282 2494 else
adamc@282 2495 return (char *)&true;
adamc@282 2496 }
adamc@284 2497
adamc@311 2498 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284 2499 int len;
adamc@284 2500 char *r;
adamc@284 2501
adamc@311 2502 uw_check_heap(ctx, INTS_MAX);
adamc@666 2503 r = ctx->heap.front;
adamc@284 2504 sprintf(r, "%lld%n", n, &len);
adamc@666 2505 ctx->heap.front += len+1;
adamc@284 2506 return r;
adamc@284 2507 }
adamc@285 2508
adamc@311 2509 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285 2510 int len;
adamc@285 2511 char *r;
adamc@285 2512
adamc@311 2513 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 2514 r = ctx->heap.front;
adamc@285 2515 sprintf(r, "%g%n", n, &len);
adamc@666 2516 ctx->heap.front += len+1;
adamc@285 2517 return r;
adamc@285 2518 }
adamc@285 2519
adamc@821 2520 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821 2521 char *r = uw_malloc(ctx, 2);
adamc@821 2522 r[0] = ch;
adamc@821 2523 r[1] = 0;
adamc@821 2524 return r;
adamc@821 2525 }
adamc@821 2526
adamc@311 2527 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311 2528 if (b == uw_Basis_False)
adamc@285 2529 return "False";
adamc@285 2530 else
adamc@285 2531 return "True";
adamc@285 2532 }
adamc@288 2533
adamc@436 2534 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436 2535 size_t len;
adamc@436 2536 char *r;
adamc@436 2537 struct tm stm;
adamc@436 2538
adamc@436 2539 if (localtime_r(&t, &stm)) {
adamc@436 2540 uw_check_heap(ctx, TIMES_MAX);
adamc@666 2541 r = ctx->heap.front;
adamc@436 2542 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 2543 ctx->heap.front += len+1;
adamc@436 2544 return r;
adamc@436 2545 } else
adamc@436 2546 return "<Invalid time>";
adamc@436 2547 }
adamc@288 2548
adamc@311 2549 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288 2550 char *endptr;
adamc@311 2551 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288 2552
adamc@288 2553 if (*s != '\0' && *endptr == '\0') {
adamc@311 2554 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288 2555 *r = n;
adamc@288 2556 return r;
adamc@288 2557 } else
adamc@288 2558 return NULL;
adamc@288 2559 }
adamc@289 2560
adamc@311 2561 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289 2562 char *endptr;
adamc@311 2563 uw_Basis_float n = strtod(s, &endptr);
adamc@289 2564
adamc@289 2565 if (*s != '\0' && *endptr == '\0') {
adamc@311 2566 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289 2567 *r = n;
adamc@289 2568 return r;
adamc@289 2569 } else
adamc@289 2570 return NULL;
adamc@289 2571 }
adamc@289 2572
adamc@821 2573 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821 2574 if (s[0] == 0) {
adamc@821 2575 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821 2576 r[0] = 0;
adamc@821 2577 return r;
adamc@821 2578 } else if (s[1] != 0)
adamc@821 2579 return NULL;
adamc@821 2580 else {
adamc@821 2581 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821 2582 r[0] = s[0];
adamc@821 2583 return r;
adamc@821 2584 }
adamc@821 2585 }
adamc@821 2586
adamc@311 2587 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311 2588 static uw_Basis_bool true = uw_Basis_True;
adamc@311 2589 static uw_Basis_bool false = uw_Basis_False;
adamc@289 2590
adamc@289 2591 if (!strcasecmp (s, "True"))
adamc@289 2592 return &true;
adamc@289 2593 else if (!strcasecmp (s, "False"))
adamc@289 2594 return &false;
adamc@289 2595 else
adamc@289 2596 return NULL;
adamc@289 2597 }
adamc@292 2598
adamc@436 2599 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438 2600 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adamc@436 2601 struct tm stm;
adamc@436 2602
adamc@439 2603 if (dot) {
adamc@439 2604 *dot = 0;
adamc@439 2605 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439 2606 *dot = '.';
adamc@439 2607 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439 2608 *r = mktime(&stm);
adamc@439 2609 return r;
adamc@439 2610 }
adamc@439 2611 else {
adamc@439 2612 *dot = '.';
adamc@439 2613 return NULL;
adamc@439 2614 }
adamc@436 2615 }
adamc@439 2616 else {
adamc@439 2617 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439 2618 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439 2619 *r = mktime(&stm);
adamc@439 2620 return r;
adamc@439 2621 }
adamc@439 2622 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439 2623 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439 2624 *r = mktime(&stm);
adamc@439 2625 return r;
adamc@439 2626 }
adamc@439 2627 else
adamc@439 2628 return NULL;
adamc@439 2629 }
adamc@436 2630 }
adamc@436 2631
adamc@311 2632 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292 2633 char *endptr;
adamc@311 2634 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292 2635
adamc@292 2636 if (*s != '\0' && *endptr == '\0')
adamc@292 2637 return n;
adamc@292 2638 else
adamc@311 2639 uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292 2640 }
adamc@293 2641
adamc@682 2642 #include <errno.h>
adamc@682 2643
adamc@678 2644 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682 2645 unsigned long long n;
adamc@682 2646
adamc@682 2647 if (sscanf(s, "%llu", &n) < 1)
adamc@682 2648 uw_error(ctx, FATAL, "Can't parse channel: %s", s);
adamc@682 2649 else {
adamc@682 2650 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682 2651 return ch;
adamc@682 2652 }
adamc@682 2653 }
adamc@682 2654
adamc@682 2655 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678 2656 char *endptr;
adamc@682 2657 unsigned long n = strtoul(s, &endptr, 10);
adamc@678 2658
adamc@678 2659 if (*s != '\0' && *endptr == '\0')
adamc@678 2660 return n;
adamc@678 2661 else
adamc@682 2662 uw_error(ctx, FATAL, "Can't parse client: %s", s);
adamc@678 2663 }
adamc@678 2664
adamc@311 2665 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293 2666 char *endptr;
adamc@311 2667 uw_Basis_float n = strtod(s, &endptr);
adamc@293 2668
adamc@293 2669 if (*s != '\0' && *endptr == '\0')
adamc@293 2670 return n;
adamc@293 2671 else
adamc@311 2672 uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293 2673 }
adamc@293 2674
adamc@821 2675 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821 2676 if (s[0] == 0)
adamc@821 2677 return 0;
adamc@821 2678 else if (s[1] != 0)
adamc@821 2679 uw_error(ctx, FATAL, "Can't parse char: %s", s);
adamc@821 2680 else
adamc@821 2681 return s[0];
adamc@821 2682 }
adamc@821 2683
adamc@311 2684 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296 2685 if (!strcasecmp(s, "T") || !strcasecmp (s, "True"))
adamc@311 2686 return uw_Basis_True;
adamc@296 2687 else if (!strcasecmp(s, "F") || !strcasecmp (s, "False"))
adamc@311 2688 return uw_Basis_False;
adamc@293 2689 else
adamc@311 2690 uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293 2691 }
adamc@436 2692
adamc@436 2693 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438 2694 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adamc@436 2695 struct tm stm = {};
adamc@436 2696
adamc@438 2697 if (dot) {
adamc@438 2698 *dot = 0;
adamc@438 2699 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438 2700 *dot = '.';
adamc@438 2701 return mktime(&stm);
adamc@438 2702 }
adamc@438 2703 else {
adamc@438 2704 *dot = '.';
adamc@438 2705 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438 2706 }
adamc@438 2707 }
adamc@438 2708 else {
adamc@439 2709 if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439 2710 return mktime(&stm);
adamc@439 2711 else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438 2712 return mktime(&stm);
adamc@438 2713 else
adamc@438 2714 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438 2715 }
adamc@436 2716 }
adamc@457 2717
adamc@939 2718 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adamc@939 2719 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adamc@939 2720 struct tm stm = {};
adamc@939 2721
adamc@939 2722 if (dot) {
adamc@939 2723 *dot = 0;
adamc@939 2724 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@939 2725 *dot = '.';
adamc@939 2726 return mktime(&stm);
adamc@939 2727 }
adamc@939 2728 else {
adamc@939 2729 *dot = '.';
adamc@939 2730 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939 2731 }
adamc@939 2732 }
adamc@939 2733 else {
adamc@939 2734 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@939 2735 return mktime(&stm);
adamc@939 2736 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@939 2737 return mktime(&stm);
adamc@939 2738 } else
adamc@939 2739 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939 2740 }
adamc@939 2741 }
adamc@939 2742
adamc@742 2743 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742 2744 char *r = ctx->heap.front;
adamc@742 2745 uw_Basis_blob b = {len, r};
adamc@742 2746
adamc@742 2747 uw_check_heap(ctx, len);
adamc@742 2748
adamc@742 2749 while (*s) {
adamc@742 2750 if (s[0] == '\\') {
adamc@742 2751 if (s[1] == '\\') {
adamc@742 2752 *r++ = '\\';
adamc@742 2753 s += 2;
adamc@1153 2754 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adamc@742 2755 *r++ = (s[1] - '0') * 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742 2756 s += 4;
adamc@742 2757 }
adamc@742 2758 else {
adamc@742 2759 *r++ = '\\';
adamc@742 2760 ++s;
adamc@742 2761 }
adamc@742 2762 } else {
adamc@742 2763 *r++ = s[0];
adamc@742 2764 ++s;
adamc@742 2765 }
adamc@742 2766 }
adamc@742 2767
adamc@742 2768 b.size = r - ctx->heap.front;
adamc@742 2769 ctx->heap.front = r;
adamc@742 2770 return b;
adamc@742 2771 }
adamc@742 2772
adamc@1052 2773 #define THE_PAST "expires=Mon, 01-01-1970 00:00:00 GMT"
adamc@1052 2774
adamc@463 2775 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463 2776 int len = strlen(c);
adamc@854 2777 char *p = ctx->outHeaders.start;
adamc@474 2778
adamc@1134 2779 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474 2780 char *p2;
adamc@474 2781 p += 13;
adamc@474 2782 p2 = strchr(p, '=');
adamc@474 2783
adamc@474 2784 if (p2) {
adamc@474 2785 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474 2786
adamc@474 2787 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052 2788 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052 2789 return NULL;
adamc@1052 2790 else {
adamc@1052 2791 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052 2792 memcpy(ret, p2+1, sz);
adamc@1052 2793 ret[sz] = 0;
adamc@1052 2794 return ret;
adamc@1052 2795 }
adamc@474 2796 }
adamc@474 2797 }
adamc@474 2798 }
adamc@463 2799
adamc@1134 2800 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051 2801 char *p2;
adamc@1051 2802
adamc@854 2803 while (1) {
adamc@1051 2804 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134 2805 if ((p2 = strchr(p, ';'))) {
adamc@1051 2806 size_t n = p2 - (p + len);
adamc@1051 2807 char *r = uw_malloc(ctx, n);
adamc@1051 2808 memcpy(r, p + 1 + len, n-1);
adamc@1051 2809 r[n-1] = 0;
adamc@1051 2810 return r;
adamc@1051 2811 } else
adamc@1051 2812 return p + 1 + len;
adamc@1134 2813 } else if ((p = strchr(p, ';')))
adamc@854 2814 p += 2;
adamc@463 2815 else
adamc@463 2816 return NULL;
adamc@463 2817 }
adamc@463 2818 }
adamc@792 2819
adamc@792 2820 return NULL;
adamc@457 2821 }
adamc@462 2822
adamc@1050 2823 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 2824 uw_write_header(ctx, "Set-Cookie: ");
adamc@462 2825 uw_write_header(ctx, c);
adamc@462 2826 uw_write_header(ctx, "=");
adamc@462 2827 uw_write_header(ctx, v);
adamc@466 2828 uw_write_header(ctx, "; path=");
adamc@466 2829 uw_write_header(ctx, prefix);
adamc@1050 2830 if (expires) {
adamc@1050 2831 char formatted[30];
adamc@1050 2832 struct tm tm;
adamc@1050 2833
adamc@1050 2834 gmtime_r(expires, &tm);
adamc@1050 2835
adamc@1050 2836 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050 2837
adamc@1050 2838 uw_write_header(ctx, "; expires=");
adamc@1050 2839 uw_write_header(ctx, formatted);
adamc@1050 2840 }
adamc@1050 2841 if (secure)
adamc@1050 2842 uw_write_header(ctx, "; secure");
adamc@462 2843 uw_write_header(ctx, "\r\n");
adamc@462 2844
adamc@462 2845 return uw_unit_v;
adamc@462 2846 }
adamc@667 2847
adamc@1050 2848 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050 2849 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050 2850 uw_write_header(ctx, c);
adamc@1050 2851 uw_write_header(ctx, "=; path=");
adamc@1050 2852 uw_write_header(ctx, prefix);
adamc@1052 2853 uw_write_header(ctx, "; " THE_PAST "\r\n");
adamc@1050 2854
adamc@1050 2855 return uw_unit_v;
adamc@1050 2856 }
adamc@1050 2857
adamc@1113 2858 size_t uw_deltas_max = SIZE_MAX;
adamc@1113 2859
adamc@682 2860 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682 2861 unsigned i;
adamc@682 2862 delta *d;
adamc@671 2863
adamc@682 2864 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682 2865 if (ctx->deltas[i].client == client)
adamc@682 2866 return &ctx->deltas[i];
adamc@671 2867
adamc@682 2868 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113 2869 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113 2870 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113 2871
adamc@682 2872 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adamc@1113 2873 buf_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682 2874 }
adamc@671 2875
adamc@682 2876 d = &ctx->deltas[ctx->used_deltas++];
adamc@682 2877 d->client = client;
adamc@682 2878 buf_reset(&d->msgs);
adamc@682 2879 return d;
adamc@671 2880 }
adamc@671 2881
adamc@668 2882 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682 2883 if (ctx->client == NULL)
adamc@682 2884 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671 2885
adamc@682 2886 return new_channel(ctx->client);
adamc@668 2887 }
adamc@668 2888
adamc@668 2889 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682 2890 delta *d = allocate_delta(ctx, chn.cli);
adamc@682 2891 size_t len;
adamc@682 2892 int preLen;
adamc@682 2893 char pre[INTS_MAX + 2];
adamc@668 2894
adamc@682 2895 len = strlen(msg);
adamc@682 2896
adamc@682 2897 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682 2898
adamc@1113 2899 ctx_buf_append(ctx, "messages", &d->msgs, pre, preLen);
adamc@1113 2900 ctx_buf_append(ctx, "messages", &d->msgs, msg, len);
adamc@1113 2901 ctx_buf_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671 2902
adamc@671 2903 return uw_unit_v;
adamc@668 2904 }
adamc@671 2905
adam@1327 2906 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131 2907 int i;
adamc@1131 2908 cleanup *cl;
adamc@1131 2909
adamc@1131 2910 if (ctx->client)
adamc@1131 2911 release_client(ctx->client);
adamc@1131 2912
adamc@1131 2913 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131 2914 cl->func(cl->arg);
adamc@1131 2915
adamc@1131 2916 ctx->cleanup_front = ctx->cleanup;
adamc@1131 2917
adamc@1131 2918 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131 2919 if (ctx->transactionals[i].rollback != NULL)
adamc@1131 2920 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131 2921
adamc@1131 2922 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131 2923 if (ctx->transactionals[i].free)
adam@1327 2924 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131 2925
adamc@1144 2926 return ctx->app ? ctx->app->db_rollback(ctx) : 0;
adamc@1131 2927 }
adamc@1131 2928
adamc@671 2929 void uw_commit(uw_context ctx) {
adamc@1104 2930 int i;
adamc@1104 2931
adamc@1131 2932 if (uw_has_error(ctx)) {
adam@1327 2933 uw_rollback(ctx, 0);
adamc@1131 2934 return;
adamc@1131 2935 }
adamc@1131 2936
adamc@1104 2937 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771 2938 if (ctx->transactionals[i].rollback != NULL)
adamc@1131 2939 if (ctx->transactionals[i].commit) {
adamc@1083 2940 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131 2941 if (uw_has_error(ctx)) {
adam@1327 2942 uw_rollback(ctx, 0);
adamc@1131 2943 return;
adamc@1131 2944 }
adamc@1131 2945 }
adamc@771 2946
adamc@1104 2947 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771 2948 if (ctx->transactionals[i].rollback == NULL)
adamc@1131 2949 if (ctx->transactionals[i].commit) {
adamc@1083 2950 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131 2951 if (uw_has_error(ctx)) {
adam@1327 2952 uw_rollback(ctx, 0);
adamc@1131 2953 return;
adamc@1131 2954 }
adamc@1131 2955 }
adamc@1131 2956
adamc@1131 2957 if (ctx->app->db_commit(ctx)) {
adamc@1131 2958 uw_set_error_message(ctx, "Error running SQL COMMIT");
adamc@1131 2959 return;
adamc@1131 2960 }
adamc@682 2961
adamc@682 2962 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682 2963 delta *d = &ctx->deltas[i];
adamc@682 2964 client *c = find_client(d->client);
adamc@682 2965
adamc@682 2966 assert (c != NULL && c->mode == USED);
adamc@682 2967
adamc@685 2968 client_send(c, &d->msgs);
adamc@682 2969 }
adamc@682 2970
adamc@682 2971 if (ctx->client)
adamc@685 2972 release_client(ctx->client);
adamc@771 2973
adamc@1104 2974 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083 2975 if (ctx->transactionals[i].free)
adam@1327 2976 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916 2977
adamc@916 2978 // Splice script data into appropriate part of page
adamc@1065 2979 if (ctx->returning_indirectly || ctx->script_header[0] == 0) {
adamc@995 2980 char *start = strstr(ctx->page.start, "<sc>");
adamc@995 2981 if (start) {
adamc@995 2982 memmove(start, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 4);
adamc@995 2983 ctx->page.front -= 4;
adamc@995 2984 }
adamc@995 2985 } else if (buf_used(&ctx->script) == 0) {
adamc@916 2986 size_t len = strlen(ctx->script_header);
adamc@916 2987 char *start = strstr(ctx->page.start, "<sc>");
adamc@916 2988 if (start) {
adamc@1113 2989 ctx_buf_check(ctx, "page", &ctx->page, buf_used(&ctx->page) - 4 + len);
adamc@917 2990 start = strstr(ctx->page.start, "<sc>");
adamc@916 2991 memmove(start + len, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916 2992 ctx->page.front += len - 4;
adamc@916 2993 memcpy(start, ctx->script_header, len);
adamc@916 2994 }
adamc@916 2995 } else {
adamc@916 2996 size_t lenH = strlen(ctx->script_header), len = buf_used(&ctx->script);
adamc@916 2997 size_t lenP = lenH + 40 + len;
adamc@916 2998 char *start = strstr(ctx->page.start, "<sc>");
adamc@916 2999 if (start) {
adamc@1113 3000 ctx_buf_check(ctx, "page", &ctx->page, buf_used(&ctx->page) - 4 + lenP);
adamc@917 3001 start = strstr(ctx->page.start, "<sc>");
adamc@916 3002 memmove(start + lenP, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916 3003 ctx->page.front += lenP - 4;
adamc@916 3004 memcpy(start, ctx->script_header, lenH);
adamc@916 3005 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916 3006 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916 3007 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916 3008 }
adamc@916 3009 }
adamc@671 3010 }
adamc@671 3011
adamc@683 3012
adamc@1113 3013 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113 3014
adamc@771 3015 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327 3016 uw_callback_with_retry free) {
adamc@771 3017 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113 3018 if (ctx->used_transactionals+1 > uw_transactionals_max)
adamc@1113 3019 uw_error(ctx, FATAL, "Exceeded limit on number of transactionals");
adamc@1084 3020 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771 3021 ++ctx->n_transactionals;
adamc@771 3022 }
adamc@771 3023
adamc@771 3024 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771 3025 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771 3026 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771 3027 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771 3028 }
adamc@771 3029
adamc@683 3030
adamc@683 3031 // "Garbage collection"
adamc@683 3032
adamc@1121 3033 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121 3034 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121 3035
adamc@1121 3036 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683 3037 int r = setjmp(ctx->jmp_buf);
adamc@683 3038
adamc@1121 3039 if (r == 0)
adamc@1121 3040 uw_do_expunge(ctx, cli, data);
adamc@1121 3041 else
adamc@1121 3042 ctx->app->db_rollback(ctx);
adamc@1121 3043
adamc@1121 3044 uw_post_expunge(ctx, data);
adamc@683 3045
adamc@683 3046 return r;
adamc@683 3047 }
adamc@683 3048
adamc@683 3049 void uw_prune_clients(uw_context ctx) {
adamc@683 3050 client *c, *next, *prev = NULL;
adamc@683 3051 time_t cutoff;
adamc@683 3052
adamc@1094 3053 cutoff = time(NULL) - ctx->app->timeout;
adamc@683 3054
adamc@683 3055 pthread_mutex_lock(&clients_mutex);
adamc@683 3056
adamc@683 3057 for (c = clients_used; c; c = next) {
adamc@683 3058 next = c->next;
adamc@683 3059 pthread_mutex_lock(&c->lock);
adamc@685 3060 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683 3061 failure_kind fk = UNLIMITED_RETRY;
adamc@683 3062 if (prev)
adamc@683 3063 prev->next = next;
adamc@683 3064 else
adamc@683 3065 clients_used = next;
adamc@684 3066 uw_reset(ctx);
adamc@683 3067 while (fk == UNLIMITED_RETRY) {
adamc@1121 3068 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121 3069 if (fk == UNLIMITED_RETRY)
adamc@684 3070 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683 3071 }
adamc@684 3072 if (fk == SUCCESS)
adamc@684 3073 free_client(c);
adamc@1121 3074 else
adamc@856 3075 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683 3076 }
adamc@683 3077 else
adamc@683 3078 prev = c;
adamc@683 3079 pthread_mutex_unlock(&c->lock);
adamc@683 3080 }
adamc@683 3081
adamc@683 3082 pthread_mutex_unlock(&clients_mutex);
adamc@683 3083 }
adamc@687 3084
adamc@687 3085 failure_kind uw_initialize(uw_context ctx) {
adamc@687 3086 int r = setjmp(ctx->jmp_buf);
adamc@687 3087
adamc@687 3088 if (r == 0) {
adamc@1094 3089 if (ctx->app->db_begin(ctx))
adamc@687 3090 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@1094 3091 ctx->app->initializer(ctx);
adamc@1094 3092 if (ctx->app->db_commit(ctx))
adamc@687 3093 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687 3094 }
adamc@687 3095
adamc@687 3096 return r;
adamc@687 3097 }
adamc@717 3098
adamc@1065 3099 static int url_bad(uw_Basis_string s) {
adamc@1065 3100 for (; *s; ++s)
adamc@1153 3101 if (!isgraph((int)*s))
adamc@1065 3102 return 1;
adamc@1065 3103
adamc@1065 3104 return 0;
adamc@1065 3105 }
adamc@1065 3106
adamc@717 3107 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065 3108 if (url_bad(s))
adamc@1065 3109 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094 3110 if (ctx->app->check_url(s))
adamc@770 3111 return s;
adamc@770 3112 else
adamc@770 3113 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717 3114 }
adamc@734 3115
adamc@770 3116 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065 3117 if (url_bad(s))
adamc@1065 3118 return NULL;
adamc@1094 3119 if (ctx->app->check_url(s))
adamc@770 3120 return s;
adamc@770 3121 else
adamc@770 3122 return NULL;
adamc@770 3123 }
adamc@770 3124
adamc@770 3125 int mime_format(const char *s) {
adamc@770 3126 for (; *s; ++s)
adamc@1153 3127 if (!isalnum((int)*s) && *s != '/' && *s != '-' && *s != '.')
adamc@770 3128 return 0;
adamc@770 3129
adamc@770 3130 return 1;
adamc@770 3131 }
adamc@770 3132
adamc@741 3133 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770 3134 if (!mime_format(s))
adamc@770 3135 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770 3136
adamc@1094 3137 if (ctx->app->check_mime(s))
adamc@770 3138 return s;
adamc@770 3139 else
adamc@770 3140 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770 3141 }
adamc@770 3142
adamc@770 3143 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770 3144 if (!mime_format(s))
adamc@770 3145 return NULL;
adamc@770 3146
adamc@1094 3147 if (ctx->app->check_mime(s))
adamc@770 3148 return s;
adamc@770 3149 else
adamc@770 3150 return NULL;
adamc@741 3151 }
adamc@741 3152
adamc@734 3153 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734 3154 return s ? s : "";
adamc@734 3155 }
adamc@734 3156
adamc@734 3157 extern int uw_hash_blocksize;
adamc@734 3158
adamc@734 3159 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734 3160 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734 3161 int i;
adamc@734 3162
adamc@734 3163 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734 3164 sprintf(&r[2*i], "%.02X", ((unsigned char *)sig)[i]);
adamc@734 3165
adamc@734 3166 return r;
adamc@734 3167 }
adamc@734 3168
adamc@734 3169 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@1094 3170 return ctx->app->cookie_sig(ctx);
adamc@734 3171 }
adamc@737 3172
adamc@737 3173 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737 3174 return f.name;
adamc@737 3175 }
adamc@737 3176
adamc@740 3177 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740 3178 return f.type;
adamc@740 3179 }
adamc@740 3180
adamc@745 3181 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745 3182 return b.size;
adamc@745 3183 }
adamc@745 3184
adamc@1119 3185 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119 3186 uw_Basis_blob b = {strlen(s), s};
adamc@1119 3187
adamc@1119 3188 return b;
adamc@1119 3189 }
adamc@1119 3190
adamc@737 3191 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737 3192 return f.data;
adamc@737 3193 }
adamc@741 3194
adamc@741 3195 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741 3196 cleanup *cl;
adamc@741 3197 int len;
adamc@741 3198
adamc@1065 3199 ctx->returning_indirectly = 1;
adamc@741 3200 buf_reset(&ctx->outHeaders);
adamc@741 3201 buf_reset(&ctx->page);
adamc@741 3202
adamc@856 3203 uw_write_header(ctx, on_success);
adamc@856 3204 uw_write_header(ctx, "Content-Type: ");
adamc@741 3205 uw_write_header(ctx, mimeType);
adamc@741 3206 uw_write_header(ctx, "\r\nContent-Length: ");
adamc@1113 3207 ctx_buf_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134 3208 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741 3209 ctx->outHeaders.front += len;
adamc@1066 3210 uw_write_header(ctx, "\r\n");
adamc@741 3211
adamc@1113 3212 ctx_buf_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741 3213
adamc@741 3214 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741 3215 cl->func(cl->arg);
adamc@741 3216
adamc@741 3217 ctx->cleanup_front = ctx->cleanup;
adamc@741 3218
adamc@1065 3219 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065 3220 }
adamc@1065 3221
adamc@1065 3222 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065 3223 cleanup *cl;
adamc@1066 3224 char *s;
adamc@1065 3225
adamc@1065 3226 ctx->returning_indirectly = 1;
adamc@1066 3227 buf_reset(&ctx->page);
adamc@1113 3228 ctx_buf_check(ctx, "page", &ctx->page, buf_used(&ctx->outHeaders)+1);
adamc@1066 3229 memcpy(ctx->page.start, ctx->outHeaders.start, buf_used(&ctx->outHeaders));
adamc@1066 3230 ctx->page.start[buf_used(&ctx->outHeaders)] = 0;
adamc@1065 3231 buf_reset(&ctx->outHeaders);
adamc@1065 3232
adamc@1065 3233 uw_write_header(ctx, on_redirect);
adamc@1066 3234
adamc@1066 3235 s = strchr(ctx->page.start, '\n');
adamc@1066 3236 if (s) {
adamc@1066 3237 char *s2;
adamc@1134 3238 for (++s; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066 3239 *s2 = 0;
adamc@1066 3240 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066 3241 uw_write_header(ctx, s);
adamc@1066 3242 uw_write_header(ctx, "\n");
adamc@1066 3243 }
adamc@1066 3244 }
adamc@1066 3245 }
adamc@1066 3246
adamc@1065 3247 uw_write_header(ctx, "Location: ");
adamc@1065 3248 uw_write_header(ctx, url);
adamc@1065 3249 uw_write_header(ctx, "\r\n\r\n");
adamc@1065 3250
adamc@1065 3251 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065 3252 cl->func(cl->arg);
adamc@1065 3253
adamc@1065 3254 ctx->cleanup_front = ctx->cleanup;
adamc@1065 3255
adamc@1065 3256 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741 3257 }
adamc@874 3258
adamc@874 3259 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adamc@874 3260 uw_Basis_string r = uw_malloc(ctx, strlen(s) + 1);
adamc@874 3261
adamc@874 3262 for (; *s; ++s) {
adamc@874 3263 if (s[0] == '\'') {
adamc@874 3264 *r++ = '\'';
adamc@874 3265 for (++s; *s; ++s) {
adamc@874 3266 if (s[0] == '\'') {
adamc@874 3267 *r++ = '\'';
adamc@874 3268 break;
adamc@874 3269 } else if (s[0] == '\\') {
adamc@874 3270 if (s[1] == '\\') {
adamc@874 3271 *r++ = '\\';
adamc@874 3272 *r++ = '\\';
adamc@874 3273 ++s;
adamc@874 3274 } else if (s[1] == '\'') {
adamc@874 3275 *r++ = '\\';
adamc@874 3276 *r++ = '\'';
adamc@874 3277 ++s;
adamc@874 3278 } else
adamc@874 3279 *r++ = '\'';
adamc@874 3280 } else
adamc@874 3281 *r++ = s[0];
adamc@874 3282 }
adamc@874 3283 if (*s == 0) break;
adamc@874 3284 } else if (s[0] == 'T' && s[1] == '.')
adamc@874 3285 ++s;
adamc@874 3286 else
adamc@874 3287 *r++ = s[0];
adamc@874 3288 }
adamc@874 3289
adamc@874 3290 return r;
adamc@874 3291 }
adamc@874 3292
adamc@922 3293 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922 3294 va_list ap;
adamc@922 3295 size_t len = 1;
adamc@922 3296 char *s, *r, *s2;
adamc@922 3297
adamc@922 3298 va_start(ap, ctx);
adamc@922 3299 for (s = va_arg(ap, char*); s; s = va_arg(ap, char*))
adamc@922 3300 len += strlen(s);
adamc@922 3301 va_end(ap);
adamc@922 3302
adamc@922 3303 r = uw_malloc(ctx, len);
adamc@922 3304 va_start(ap, ctx);
adamc@922 3305 for (s2 = r, s = va_arg(ap, char*); s; s = va_arg(ap, char*))
adamc@922 3306 while (*s)
adamc@922 3307 *s2++ = *s++;
adamc@922 3308 va_end(ap);
adamc@922 3309 *s2 = 0;
adamc@922 3310
adamc@922 3311 return r;
adamc@922 3312 }
adamc@1006 3313
adamc@1050 3314 const uw_Basis_time minTime = 0;
adamc@1050 3315
adamc@1006 3316 uw_Basis_time uw_Basis_now(uw_context ctx) {
adamc@1006 3317 return time(NULL);
adamc@1006 3318 }
adamc@1061 3319
adamc@1138 3320 uw_Basis_time uw_Basis_minusSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adamc@1138 3321 return tm - n;
adamc@1138 3322 }
adamc@1138 3323
adamc@1061 3324 void *uw_get_global(uw_context ctx, char *name) {
adamc@1061 3325 int i;
adamc@1061 3326
adamc@1061 3327 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061 3328 if (!strcmp(name, ctx->globals[i].name))
adamc@1061 3329 return ctx->globals[i].data;
adamc@1061 3330
adamc@1061 3331 return NULL;
adamc@1061 3332 }
adamc@1061 3333
adamc@1113 3334 size_t uw_globals_max = SIZE_MAX;
adamc@1113 3335
adamc@1061 3336 void uw_set_global(uw_context ctx, char *name, void *data, void (*free)(void*)) {
adamc@1061 3337 int i;
adamc@1061 3338
adamc@1061 3339 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061 3340 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089 3341 if (ctx->globals[i].free)
adamc@1061 3342 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061 3343 ctx->globals[i].data = data;
adamc@1061 3344 ctx->globals[i].free = free;
adamc@1061 3345 return;
adamc@1061 3346 }
adamc@1089 3347
adamc@1113 3348 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113 3349 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113 3350
adamc@1061 3351 ++ctx->n_globals;
adamc@1061 3352 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061 3353 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061 3354 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061 3355 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061 3356 }
adamc@1061 3357
adamc@1061 3358 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153 3359 return !!isalnum((int)c);
adamc@1061 3360 }
adamc@1061 3361
adamc@1061 3362 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153 3363 return !!isalpha((int)c);
adamc@1061 3364 }
adamc@1061 3365
adamc@1061 3366 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153 3367 return !!isblank((int)c);
adamc@1061 3368 }
adamc@1061 3369
adamc@1061 3370 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153 3371 return !!iscntrl((int)c);
adamc@1061 3372 }
adamc@1061 3373
adamc@1061 3374 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153 3375 return !!isdigit((int)c);
adamc@1061 3376 }
adamc@1061 3377
adamc@1061 3378 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153 3379 return !!isgraph((int)c);
adamc@1061 3380 }
adamc@1061 3381
adamc@1061 3382 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153 3383 return !!islower((int)c);
adamc@1061 3384 }
adamc@1061 3385
adamc@1061 3386 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153 3387 return !!isprint((int)c);
adamc@1061 3388 }
adamc@1061 3389
adamc@1061 3390 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153 3391 return !!ispunct((int)c);
adamc@1061 3392 }
adamc@1061 3393
adamc@1061 3394 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153 3395 return !!isspace((int)c);
adamc@1061 3396 }
adamc@1063 3397
adamc@1061 3398 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153 3399 return !!isupper((int)c);
adamc@1061 3400 }
adamc@1061 3401
adamc@1061 3402 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153 3403 return !!isxdigit((int)c);
adamc@1061 3404 }
adamc@1061 3405
adamc@1061 3406 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153 3407 return tolower((int)c);
adamc@1061 3408 }
adamc@1061 3409
adamc@1061 3410 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153 3411 return toupper((int)c);
adamc@1061 3412 }
adamc@1066 3413
adamc@1128 3414 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128 3415 return (unsigned char)c;
adamc@1128 3416 }
adamc@1128 3417
adamc@1128 3418 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128 3419 return n;
adamc@1128 3420 }
adamc@1128 3421
adamc@1066 3422 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066 3423 return ctx->current_url;
adamc@1066 3424 }
adamc@1066 3425
adamc@1066 3426 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066 3427 ctx->current_url = s;
adamc@1066 3428 }
adamc@1114 3429
adamc@1114 3430 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114 3431 ctx->deadline = n;
adamc@1114 3432 }
adamc@1114 3433
adamc@1114 3434 void uw_check_deadline(uw_context ctx) {
adamc@1114 3435 if (uw_time > ctx->deadline)
adamc@1114 3436 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114 3437 }
adamc@1115 3438
adamc@1115 3439 size_t uw_database_max = SIZE_MAX;
adamc@1120 3440
adamc@1120 3441 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
adamc@1120 3442 fprintf(stderr, "%s\n", s);
adamc@1120 3443
adamc@1120 3444 return uw_unit_v;
adamc@1120 3445 }
adamc@1250 3446
adamc@1250 3447 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adamc@1250 3448 uw_Basis_int n = abs(rand());
adamc@1250 3449 return n;
adamc@1250 3450 }