annotate src/c/urweb.c @ 917:321a2d6feb40

dragList demo working, save for Gecko load delay and highlighting
author Adam Chlipala <adamc@hcoop.net>
date Tue, 08 Sep 2009 10:55:49 -0400
parents b873feb3eb52
children ae0110465421
rev   line source
adamc@741 1 #define _XOPEN_SOURCE 500
adamc@436 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@102 12
adamc@667 13 #include <pthread.h>
adamc@667 14
adamc@102 15 #include "types.h"
adamc@102 16
adamc@311 17 uw_unit uw_unit_v = {};
adamc@102 18
adamc@667 19
adamc@667 20 // Socket extras
adamc@667 21
adamc@863 22 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667 23 while (len > 0) {
adamc@856 24 ssize_t n = send(sock, buf, len, 0);
adamc@856 25
adamc@856 26 if (n < 0)
adamc@856 27 return n;
adamc@856 28
adamc@856 29 buf += n;
adamc@856 30 len -= n;
adamc@856 31 }
adamc@856 32
adamc@856 33 return 0;
adamc@856 34 }
adamc@856 35
adamc@856 36 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856 37 while (len > 0) {
adamc@856 38 ssize_t n = write(fd, buf, len);
adamc@667 39
adamc@667 40 if (n < 0)
adamc@667 41 return n;
adamc@667 42
adamc@667 43 buf += n;
adamc@667 44 len -= n;
adamc@667 45 }
adamc@667 46
adamc@667 47 return 0;
adamc@667 48 }
adamc@667 49
adamc@667 50
adamc@667 51 // Buffers
adamc@667 52
adamc@667 53 typedef struct {
adamc@667 54 char *start, *front, *back;
adamc@667 55 } buf;
adamc@667 56
adamc@667 57 static void buf_init(buf *b, size_t s) {
adamc@667 58 b->front = b->start = malloc(s);
adamc@667 59 b->back = b->front + s;
adamc@667 60 }
adamc@667 61
adamc@667 62 static void buf_free(buf *b) {
adamc@667 63 free(b->start);
adamc@667 64 }
adamc@667 65
adamc@667 66 static void buf_reset(buf *b) {
adamc@667 67 b->front = b->start;
adamc@667 68 }
adamc@667 69
adamc@667 70 static void buf_check(buf *b, size_t extra) {
adamc@667 71 if (b->back - b->front < extra) {
adamc@667 72 size_t desired = b->front - b->start + extra, next;
adamc@667 73 char *new_heap;
adamc@667 74
adamc@667 75 next = b->back - b->start;
adamc@667 76 if (next == 0)
adamc@667 77 next = 1;
adamc@667 78 for (; next < desired; next *= 2);
adamc@667 79
adamc@667 80 new_heap = realloc(b->start, next);
adamc@667 81 b->front = new_heap + (b->front - b->start);
adamc@667 82 b->back = new_heap + next;
adamc@667 83 b->start = new_heap;
adamc@667 84 }
adamc@667 85 }
adamc@667 86
adamc@667 87 static size_t buf_used(buf *b) {
adamc@667 88 return b->front - b->start;
adamc@667 89 }
adamc@667 90
adamc@667 91 static size_t buf_avail(buf *b) {
adamc@667 92 return b->back - b->start;
adamc@667 93 }
adamc@667 94
adamc@668 95 static void buf_append(buf *b, const char *s, size_t len) {
adamc@672 96 buf_check(b, len+1);
adamc@668 97 memcpy(b->front, s, len);
adamc@668 98 b->front += len;
adamc@672 99 *b->front = 0;
adamc@668 100 }
adamc@667 101
adamc@668 102
adamc@672 103 // Persistent state types
adamc@667 104
adamc@667 105 typedef enum { UNUSED, USED } usage;
adamc@667 106
adamc@667 107 typedef struct client {
adamc@682 108 unsigned id;
adamc@667 109 usage mode;
adamc@682 110 int pass;
adamc@682 111 struct client *next;
adamc@689 112 pthread_mutex_t lock, pull_lock;
adamc@682 113 buf msgs;
adamc@682 114 int sock;
adamc@863 115 int (*send)(int sockfd, const void *buf, ssize_t len);
adamc@863 116 int (*close)(int fd);
adamc@682 117 time_t last_contact;
adamc@682 118 unsigned n_channels;
adamc@685 119 unsigned refcount;
adamc@667 120 } client;
adamc@667 121
adamc@672 122
adamc@672 123 // Persistent client state
adamc@672 124
adamc@682 125 static client **clients, *clients_free, *clients_used;
adamc@682 126 static unsigned n_clients;
adamc@667 127
adamc@667 128 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@667 129
adamc@682 130 static client *new_client() {
adamc@667 131 client *c;
adamc@667 132
adamc@667 133 pthread_mutex_lock(&clients_mutex);
adamc@667 134
adamc@667 135 if (clients_free) {
adamc@667 136 c = clients_free;
adamc@682 137 clients_free = clients_free->next;
adamc@667 138 }
adamc@667 139 else {
adamc@667 140 ++n_clients;
adamc@667 141 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667 142 c = malloc(sizeof(client));
adamc@667 143 c->id = n_clients-1;
adamc@682 144 pthread_mutex_init(&c->lock, NULL);
adamc@689 145 pthread_mutex_init(&c->pull_lock, NULL);
adamc@682 146 buf_init(&c->msgs, 0);
adamc@667 147 clients[n_clients-1] = c;
adamc@667 148 }
adamc@667 149
adamc@682 150 pthread_mutex_lock(&c->lock);
adamc@667 151 c->mode = USED;
adamc@682 152 c->pass = rand();
adamc@682 153 c->sock = -1;
adamc@682 154 c->last_contact = time(NULL);
adamc@682 155 buf_reset(&c->msgs);
adamc@682 156 c->n_channels = 0;
adamc@685 157 c->refcount = 0;
adamc@682 158 pthread_mutex_unlock(&c->lock);
adamc@682 159
adamc@682 160 c->next = clients_used;
adamc@682 161 clients_used = c;
adamc@667 162
adamc@667 163 pthread_mutex_unlock(&clients_mutex);
adamc@667 164
adamc@667 165 return c;
adamc@667 166 }
adamc@667 167
adamc@685 168 static void use_client(client *c) {
adamc@685 169 pthread_mutex_lock(&c->lock);
adamc@685 170 ++c->refcount;
adamc@685 171 pthread_mutex_unlock(&c->lock);
adamc@689 172 pthread_mutex_lock(&c->pull_lock);
adamc@685 173 }
adamc@685 174
adamc@685 175 static void release_client(client *c) {
adamc@689 176 pthread_mutex_unlock(&c->pull_lock);
adamc@685 177 pthread_mutex_lock(&c->lock);
adamc@685 178 --c->refcount;
adamc@685 179 pthread_mutex_unlock(&c->lock);
adamc@689 180
adamc@685 181 }
adamc@685 182
adamc@856 183 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adamc@667 184
adamc@682 185 static client *find_client(unsigned id) {
adamc@667 186 client *c;
adamc@667 187
adamc@667 188 pthread_mutex_lock(&clients_mutex);
adamc@667 189
adamc@667 190 if (id >= n_clients) {
adamc@667 191 pthread_mutex_unlock(&clients_mutex);
adamc@668 192 return NULL;
adamc@667 193 }
adamc@667 194
adamc@667 195 c = clients[id];
adamc@667 196
adamc@668 197 pthread_mutex_unlock(&clients_mutex);
adamc@668 198 return c;
adamc@668 199 }
adamc@668 200
adamc@856 201 static char *on_success = "HTTP/1.1 200 OK\r\n";
adamc@856 202
adamc@856 203 void uw_set_on_success(char *s) {
adamc@856 204 on_success = s;
adamc@856 205 }
adamc@856 206
adamc@863 207 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863 208 int (*send)(int sockfd, const void *buf, ssize_t len),
adamc@864 209 int (*close)(int fd),
adamc@864 210 void *logger_data, uw_logger log_error) {
adamc@682 211 client *c = find_client(id);
adamc@668 212
adamc@668 213 if (c == NULL) {
adamc@667 214 close(sock);
adamc@864 215 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667 216 return;
adamc@667 217 }
adamc@667 218
adamc@682 219 pthread_mutex_lock(&c->lock);
adamc@671 220
adamc@682 221 if (c->mode != USED) {
adamc@682 222 pthread_mutex_unlock(&c->lock);
adamc@667 223 close(sock);
adamc@864 224 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667 225 return;
adamc@667 226 }
adamc@667 227
adamc@682 228 if (pass != c->pass) {
adamc@682 229 pthread_mutex_unlock(&c->lock);
adamc@682 230 close(sock);
adamc@864 231 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682 232 return;
adamc@667 233 }
adamc@667 234
adamc@682 235 if (c->sock != -1) {
adamc@863 236 c->close(c->sock);
adamc@682 237 c->sock = -1;
adamc@682 238 }
adamc@667 239
adamc@682 240 c->last_contact = time(NULL);
adamc@682 241
adamc@682 242 if (buf_used(&c->msgs) > 0) {
adamc@863 243 send(sock, on_success, strlen(on_success));
adamc@863 244 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863 245 send(sock, c->msgs.start, buf_used(&c->msgs));
adamc@682 246 buf_reset(&c->msgs);
adamc@667 247 close(sock);
adamc@667 248 }
adamc@863 249 else {
adamc@682 250 c->sock = sock;
adamc@863 251 c->send = send;
adamc@863 252 c->close = close;
adamc@863 253 }
adamc@667 254
adamc@682 255 pthread_mutex_unlock(&c->lock);
adamc@667 256 }
adamc@667 257
adamc@682 258 static void free_client(client *c) {
adamc@682 259 c->mode = UNUSED;
adamc@682 260 c->pass = -1;
adamc@667 261
adamc@682 262 c->next = clients_free;
adamc@682 263 clients_free = c;
adamc@667 264 }
adamc@667 265
adamc@682 266 static uw_Basis_channel new_channel(client *c) {
adamc@682 267 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668 268 return ch;
adamc@668 269 }
adamc@668 270
adamc@685 271 static void client_send(client *c, buf *msg) {
adamc@685 272 pthread_mutex_lock(&c->lock);
adamc@671 273
adamc@682 274 if (c->sock != -1) {
adamc@863 275 c->send(c->sock, on_success, strlen(on_success));
adamc@863 276 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863 277 c->send(c->sock, msg->start, buf_used(msg));
adamc@863 278 c->close(c->sock);
adamc@682 279 c->sock = -1;
adamc@682 280 } else
adamc@682 281 buf_append(&c->msgs, msg->start, buf_used(msg));
adamc@671 282
adamc@685 283 pthread_mutex_unlock(&c->lock);
adamc@668 284 }
adamc@668 285
adamc@668 286
adamc@668 287 // Global entry points
adamc@668 288
adamc@866 289 extern void uw_client_init();
adamc@866 290
adamc@668 291 void uw_global_init() {
adamc@668 292 srand(time(NULL) ^ getpid());
adamc@668 293
adamc@668 294 clients = malloc(0);
adamc@866 295
adamc@866 296 uw_client_init();
adamc@668 297 }
adamc@668 298
adamc@668 299
adamc@667 300 // Single-request state
adamc@667 301
adamc@167 302 #define ERROR_BUF_LEN 1024
adamc@167 303
adamc@323 304 typedef struct regions {
adamc@323 305 struct regions *next;
adamc@323 306 } regions;
adamc@323 307
adamc@425 308 typedef struct {
adamc@425 309 void (*func)(void*);
adamc@425 310 void *arg;
adamc@425 311 } cleanup;
adamc@425 312
adamc@671 313 typedef struct {
adamc@682 314 unsigned client;
adamc@671 315 buf msgs;
adamc@682 316 } delta;
adamc@671 317
adamc@737 318 typedef enum {
adamc@759 319 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737 320 } input_kind;
adamc@737 321
adamc@756 322 typedef struct input {
adamc@737 323 input_kind kind;
adamc@737 324 union {
adamc@737 325 char *normal;
adamc@739 326 uw_Basis_file file;
adamc@756 327 struct {
adamc@759 328 struct input *fields, *parent;
adamc@756 329 } subform;
adamc@759 330 struct {
adamc@759 331 struct input *entries, *parent;
adamc@759 332 } subforms;
adamc@759 333 struct {
adamc@759 334 struct input *fields, *next, *parent;
adamc@759 335 } entry;
adamc@737 336 } data;
adamc@737 337 } input;
adamc@737 338
adamc@771 339 typedef struct {
adamc@771 340 void *data;
adamc@771 341 uw_callback commit, rollback, free;
adamc@771 342 } transactional;
adamc@771 343
adamc@311 344 struct uw_context {
adamc@854 345 char *(*get_header)(void *, const char *);
adamc@854 346 void *get_header_data;
adamc@457 347
adamc@666 348 buf outHeaders, page, heap, script;
adamc@759 349 input *inputs, *subinputs, *cur_container;
adamc@756 350 size_t n_subinputs, used_subinputs;
adamc@167 351
adamc@565 352 int source_count;
adamc@562 353
adamc@272 354 void *db;
adamc@272 355
adamc@167 356 jmp_buf jmp_buf;
adamc@167 357
adamc@323 358 regions *regions;
adamc@323 359
adamc@425 360 cleanup *cleanup, *cleanup_front, *cleanup_back;
adamc@425 361
adamc@667 362 const char *script_header, *url_prefix;
adamc@643 363
adamc@736 364 int needs_push, needs_sig;
adamc@693 365
adamc@682 366 size_t n_deltas, used_deltas;
adamc@682 367 delta *deltas;
adamc@671 368
adamc@673 369 int timeout;
adamc@673 370
adamc@682 371 client *client;
adamc@682 372
adamc@771 373 transactional *transactionals;
adamc@771 374 size_t n_transactionals, used_transactionals;
adamc@771 375
adamc@167 376 char error_message[ERROR_BUF_LEN];
adamc@117 377 };
adamc@117 378
adamc@683 379 extern int uw_inputs_len, uw_timeout;
adamc@144 380
adamc@687 381 uw_context uw_init() {
adamc@311 382 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136 383
adamc@854 384 ctx->get_header = NULL;
adamc@854 385 ctx->get_header_data = NULL;
adamc@457 386
adamc@687 387 buf_init(&ctx->outHeaders, 0);
adamc@687 388 buf_init(&ctx->page, 0);
adamc@687 389 buf_init(&ctx->heap, 0);
adamc@698 390 buf_init(&ctx->script, 1);
adamc@667 391 ctx->script.start[0] = 0;
adamc@136 392
adamc@737 393 ctx->inputs = calloc(uw_inputs_len, sizeof(input));
adamc@759 394 ctx->cur_container = NULL;
adamc@756 395 ctx->subinputs = malloc(0);
adamc@756 396 ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144 397
adamc@272 398 ctx->db = NULL;
adamc@272 399
adamc@323 400 ctx->regions = NULL;
adamc@323 401
adamc@425 402 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425 403
adamc@643 404 ctx->script_header = "";
adamc@667 405 ctx->url_prefix = "/";
adamc@693 406 ctx->needs_push = 0;
adamc@736 407 ctx->needs_sig = 0;
adamc@643 408
adamc@167 409 ctx->error_message[0] = 0;
adamc@167 410
adamc@565 411 ctx->source_count = 0;
adamc@562 412
adamc@682 413 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671 414 ctx->deltas = malloc(0);
adamc@671 415
adamc@673 416 ctx->timeout = uw_timeout;
adamc@673 417
adamc@700 418 ctx->client = NULL;
adamc@700 419
adamc@700 420 ctx->error_message[0] = 0;
adamc@700 421
adamc@771 422 ctx->transactionals = malloc(0);
adamc@771 423 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771 424
adamc@117 425 return ctx;
adamc@106 426 }
adamc@106 427
adamc@311 428 void uw_set_db(uw_context ctx, void *db) {
adamc@272 429 ctx->db = db;
adamc@272 430 }
adamc@272 431
adamc@311 432 void *uw_get_db(uw_context ctx) {
adamc@272 433 return ctx->db;
adamc@272 434 }
adamc@272 435
adamc@311 436 void uw_free(uw_context ctx) {
adamc@671 437 size_t i;
adamc@671 438
adamc@666 439 buf_free(&ctx->outHeaders);
adamc@666 440 buf_free(&ctx->script);
adamc@666 441 buf_free(&ctx->page);
adamc@666 442 buf_free(&ctx->heap);
adamc@144 443 free(ctx->inputs);
adamc@756 444 free(ctx->subinputs);
adamc@425 445 free(ctx->cleanup);
adamc@771 446 free(ctx->transactionals);
adamc@671 447
adamc@682 448 for (i = 0; i < ctx->n_deltas; ++i)
adamc@671 449 buf_free(&ctx->deltas[i].msgs);
adamc@671 450
adamc@136 451 free(ctx);
adamc@136 452 }
adamc@136 453
adamc@562 454 void uw_reset_keep_error_message(uw_context ctx) {
adamc@756 455 size_t i;
adamc@756 456
adamc@666 457 buf_reset(&ctx->outHeaders);
adamc@666 458 buf_reset(&ctx->script);
adamc@667 459 ctx->script.start[0] = 0;
adamc@666 460 buf_reset(&ctx->page);
adamc@666 461 buf_reset(&ctx->heap);
adamc@323 462 ctx->regions = NULL;
adamc@425 463 ctx->cleanup_front = ctx->cleanup;
adamc@565 464 ctx->source_count = 0;
adamc@682 465 ctx->used_deltas = 0;
adamc@682 466 ctx->client = NULL;
adamc@759 467 ctx->cur_container = NULL;
adamc@771 468 ctx->used_transactionals = 0;
adamc@167 469 }
adamc@167 470
adamc@562 471 void uw_reset_keep_request(uw_context ctx) {
adamc@562 472 uw_reset_keep_error_message(ctx);
adamc@562 473 ctx->error_message[0] = 0;
adamc@167 474 }
adamc@167 475
adamc@311 476 void uw_reset(uw_context ctx) {
adamc@311 477 uw_reset_keep_request(ctx);
adamc@737 478 memset(ctx->inputs, 0, uw_inputs_len * sizeof(input));
adamc@756 479 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adamc@756 480 ctx->used_subinputs = 0;
adamc@144 481 }
adamc@144 482
adamc@311 483 void uw_db_init(uw_context);
adamc@311 484 void uw_handle(uw_context, char *);
adamc@167 485
adamc@311 486 failure_kind uw_begin_init(uw_context ctx) {
adamc@272 487 int r = setjmp(ctx->jmp_buf);
adamc@272 488
adamc@272 489 if (r == 0)
adamc@311 490 uw_db_init(ctx);
adamc@272 491
adamc@272 492 return r;
adamc@272 493 }
adamc@272 494
adamc@854 495 void uw_set_headers(uw_context ctx, char *(*get_header)(void *, const char *), void *get_header_data) {
adamc@854 496 ctx->get_header = get_header;
adamc@854 497 ctx->get_header_data = get_header_data;
adamc@742 498 }
adamc@742 499
adamc@671 500 int uw_db_begin(uw_context);
adamc@167 501
adamc@801 502 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801 503 va_list ap;
adamc@801 504 va_start(ap, fmt);
adamc@801 505
adamc@801 506 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801 507 }
adamc@801 508
adamc@311 509 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425 510 cleanup *cl;
adamc@425 511
adamc@167 512 va_list ap;
adamc@167 513 va_start(ap, fmt);
adamc@167 514
adamc@167 515 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167 516
adamc@425 517 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425 518 cl->func(cl->arg);
adamc@425 519
adamc@425 520 ctx->cleanup_front = ctx->cleanup;
adamc@425 521
adamc@190 522 longjmp(ctx->jmp_buf, fk);
adamc@167 523 }
adamc@167 524
adamc@425 525 void uw_push_cleanup(uw_context ctx, void (*func)(void *), void *arg) {
adamc@425 526 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425 527 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425 528 if (len == 0)
adamc@425 529 newLen = 1;
adamc@425 530 else
adamc@428 531 newLen = len * 2;
adamc@470 532 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425 533 ctx->cleanup_front = ctx->cleanup + len;
adamc@425 534 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425 535 }
adamc@425 536
adamc@425 537 ctx->cleanup_front->func = func;
adamc@425 538 ctx->cleanup_front->arg = arg;
adamc@425 539 ++ctx->cleanup_front;
adamc@425 540 }
adamc@425 541
adamc@682 542 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adamc@854 543 return ctx->get_header(ctx->get_header_data, h);
adamc@682 544 }
adamc@682 545
adamc@682 546 void uw_login(uw_context ctx) {
adamc@693 547 if (ctx->needs_push) {
adamc@682 548 char *id_s, *pass_s;
adamc@682 549
adamc@682 550 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682 551 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682 552 unsigned id = atoi(id_s);
adamc@682 553 int pass = atoi(pass_s);
adamc@682 554 client *c = find_client(id);
adamc@682 555
adamc@682 556 if (c == NULL)
adamc@682 557 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", id_s, pass_s);
adamc@682 558 else {
adamc@685 559 use_client(c);
adamc@682 560 ctx->client = c;
adamc@682 561
adamc@682 562 if (c->mode != USED)
adamc@682 563 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682 564 if (c->pass != pass)
adamc@682 565 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682 566 }
adamc@682 567 } else {
adamc@682 568 client *c = new_client();
adamc@685 569 use_client(c);
adamc@682 570 ctx->client = c;
adamc@864 571 }
adamc@682 572 }
adamc@682 573 }
adamc@682 574
adamc@671 575 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671 576 int r = setjmp(ctx->jmp_buf);
adamc@671 577
adamc@671 578 if (r == 0) {
adamc@671 579 if (uw_db_begin(ctx))
adamc@671 580 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adamc@682 581
adamc@671 582 uw_handle(ctx, path);
adamc@671 583 }
adamc@671 584
adamc@671 585 return r;
adamc@671 586 }
adamc@671 587
adamc@772 588 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682 589 if (ctx->client == NULL)
adamc@682 590 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682 591
adamc@682 592 return ctx->client->id;
adamc@682 593 }
adamc@682 594
adamc@425 595 void uw_pop_cleanup(uw_context ctx) {
adamc@425 596 if (ctx->cleanup_front == ctx->cleanup)
adamc@425 597 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425 598
adamc@425 599 --ctx->cleanup_front;
adamc@425 600 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425 601 }
adamc@425 602
adamc@311 603 char *uw_error_message(uw_context ctx) {
adamc@167 604 return ctx->error_message;
adamc@167 605 }
adamc@167 606
adamc@737 607 extern int uw_input_num(const char*);
adamc@144 608
adamc@759 609 static input *INP(uw_context ctx) {
adamc@759 610 if (ctx->cur_container == NULL)
adamc@759 611 return ctx->inputs;
adamc@759 612 else if (ctx->cur_container->kind == SUBFORM)
adamc@759 613 return ctx->cur_container->data.subform.fields;
adamc@759 614 else if (ctx->cur_container->kind == ENTRY)
adamc@759 615 return ctx->cur_container->data.entry.fields;
adamc@759 616 else
adamc@760 617 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759 618 }
adamc@759 619
adamc@760 620 static void adjust_pointer(input **ptr, input *old_start, input *new_start, size_t len) {
adamc@760 621 if (*ptr != NULL && *ptr >= old_start && *ptr < old_start + len)
adamc@760 622 *ptr += new_start - old_start;
adamc@760 623 }
adamc@760 624
adamc@760 625 static void adjust_input(input *x, input *old_start, input *new_start, size_t len) {
adamc@759 626 switch (x->kind) {
adamc@759 627 case SUBFORM:
adamc@760 628 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760 629 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759 630 break;
adamc@759 631 case SUBFORMS:
adamc@760 632 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760 633 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759 634 break;
adamc@759 635 case ENTRY:
adamc@760 636 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760 637 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760 638 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@759 639 }
adamc@759 640 }
adamc@759 641
adamc@759 642 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759 643 size_t i;
adamc@759 644 input *r;
adamc@759 645
adamc@759 646 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@759 647 input *new_subinputs = realloc(ctx->subinputs, sizeof(input) * (ctx->used_subinputs + len));
adamc@759 648 size_t offset = new_subinputs - ctx->subinputs;
adamc@759 649
adamc@760 650 if (ctx->subinputs != new_subinputs) {
adamc@760 651 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760 652 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760 653 for (i = 0; i < uw_inputs_len; ++i)
adamc@760 654 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760 655
adamc@760 656 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760 657
adamc@760 658 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760 659 ctx->subinputs = new_subinputs;
adamc@760 660 }
adamc@759 661 }
adamc@759 662
adamc@759 663 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759 664
adamc@759 665 for (i = 0; i < len; ++i)
adamc@759 666 ctx->subinputs[ctx->used_subinputs++].kind = UNUSED;
adamc@759 667
adamc@759 668 return r;
adamc@759 669 }
adamc@756 670
adamc@801 671 int uw_set_input(uw_context ctx, const char *name, char *value) {
adamc@756 672 if (!strcasecmp(name, ".b")) {
adamc@756 673 int n = uw_input_num(value);
adamc@756 674 input *inps;
adamc@756 675
adamc@801 676 if (n < 0) {
adamc@801 677 uw_set_error(ctx, "Bad subform name %s", value);
adamc@801 678 return -1;
adamc@801 679 }
adamc@801 680
adamc@801 681 if (n >= uw_inputs_len) {
adamc@801 682 uw_set_error(ctx, "For subform name %s, index %d is out of range", value, n);
adamc@801 683 return -1;
adamc@801 684 }
adamc@756 685
adamc@759 686 inps = check_input_space(ctx, uw_inputs_len);
adamc@759 687
adamc@759 688 INP(ctx)[n].kind = SUBFORM;
adamc@759 689 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759 690 INP(ctx)[n].data.subform.fields = inps;
adamc@759 691 ctx->cur_container = &INP(ctx)[n];
adamc@756 692 } else if (!strcasecmp(name, ".e")) {
adamc@756 693 input *tmp;
adamc@756 694
adamc@801 695 if (ctx->cur_container == NULL) {
adamc@801 696 uw_set_error(ctx, "Unmatched subform closer");
adamc@801 697 return -1;
adamc@801 698 }
adamc@756 699
adamc@759 700 tmp = ctx->cur_container;
adamc@759 701 switch (tmp->kind) {
adamc@759 702 case SUBFORM:
adamc@759 703 ctx->cur_container = tmp->data.subform.parent;
adamc@759 704 tmp->data.subform.parent = NULL;
adamc@759 705 break;
adamc@759 706 case SUBFORMS:
adamc@759 707 ctx->cur_container = tmp->data.subforms.parent;
adamc@759 708 tmp->data.subforms.parent = NULL;
adamc@759 709 break;
adamc@759 710 case ENTRY:
adamc@759 711 ctx->cur_container = tmp->data.entry.parent;
adamc@759 712 break;
adamc@759 713 default:
adamc@801 714 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801 715 return -1;
adamc@759 716 }
adamc@759 717 } else if (!strcasecmp(name, ".s")) {
adamc@759 718 int n = uw_input_num(value);
adamc@759 719
adamc@801 720 if (n < 0) {
adamc@801 721 uw_set_error(ctx, "Bad subforms name %s", value);
adamc@801 722 return -1;
adamc@801 723 }
adamc@801 724
adamc@801 725 if (n >= uw_inputs_len) {
adamc@801 726 uw_set_error(ctx, "For subforms name %s, index %d is out of range", value, n);
adamc@801 727 return -1;
adamc@801 728 }
adamc@759 729
adamc@759 730 INP(ctx)[n].kind = SUBFORMS;
adamc@759 731 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759 732 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759 733 ctx->cur_container = &INP(ctx)[n];
adamc@759 734 } else if (!strcasecmp(name, ".i")) {
adamc@759 735 input *inps;
adamc@759 736
adamc@801 737 if (!ctx->cur_container) {
adamc@801 738 uw_set_error(ctx, "New entry without container");
adamc@801 739 return -1;
adamc@801 740 }
adamc@801 741
adamc@801 742 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801 743 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801 744 return -1;
adamc@801 745 }
adamc@759 746
adamc@759 747 inps = check_input_space(ctx, uw_inputs_len + 1);
adamc@759 748
adamc@759 749 inps->kind = ENTRY;
adamc@759 750 inps->data.entry.parent = ctx->cur_container;
adamc@759 751 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759 752 ctx->cur_container->data.subforms.entries = inps;
adamc@759 753
adamc@759 754 inps->data.entry.fields = inps+1;
adamc@759 755 ctx->cur_container = inps;
adamc@756 756 } else {
adamc@756 757 int n = uw_input_num(name);
adamc@756 758
adamc@801 759 if (n < 0) {
adamc@801 760 uw_set_error(ctx, "Bad input name %s", name);
adamc@801 761 return -1;
adamc@801 762 }
adamc@801 763
adamc@801 764 if (n >= uw_inputs_len) {
adamc@801 765 uw_set_error(ctx, "For input name %s, index %d is out of range", name, n);
adamc@801 766 return -1;
adamc@801 767 }
adamc@756 768
adamc@756 769 INP(ctx)[n].kind = NORMAL;
adamc@756 770 INP(ctx)[n].data.normal = value;
adamc@756 771 }
adamc@801 772
adamc@801 773 return 0;
adamc@144 774 }
adamc@144 775
adamc@311 776 char *uw_get_input(uw_context ctx, int n) {
adamc@169 777 if (n < 0)
adamc@311 778 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311 779 if (n >= uw_inputs_len)
adamc@311 780 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737 781
adamc@756 782 switch (INP(ctx)[n].kind) {
adamc@737 783 case UNSET:
adamc@737 784 return NULL;
adamc@739 785 case FIL:
adamc@739 786 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756 787 case SUBFORM:
adamc@756 788 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759 789 case SUBFORMS:
adamc@759 790 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759 791 case ENTRY:
adamc@759 792 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737 793 case NORMAL:
adamc@756 794 return INP(ctx)[n].data.normal;
adamc@737 795 default:
adamc@737 796 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 797 }
adamc@138 798 }
adamc@138 799
adamc@311 800 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190 801 if (n < 0)
adamc@311 802 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311 803 if (n >= uw_inputs_len)
adamc@311 804 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737 805
adamc@756 806 switch (INP(ctx)[n].kind) {
adamc@737 807 case UNSET:
adamc@737 808 return "";
adamc@739 809 case FIL:
adamc@739 810 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756 811 case SUBFORM:
adamc@756 812 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759 813 case SUBFORMS:
adamc@759 814 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759 815 case ENTRY:
adamc@759 816 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737 817 case NORMAL:
adamc@756 818 return INP(ctx)[n].data.normal;
adamc@737 819 default:
adamc@737 820 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 821 }
adamc@737 822 }
adamc@737 823
adamc@801 824 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@737 825 int n = uw_input_num(name);
adamc@737 826
adamc@801 827 if (n < 0) {
adamc@801 828 uw_set_error(ctx, "Bad file input name %s", name);
adamc@801 829 return -1;
adamc@801 830 }
adamc@801 831
adamc@801 832 if (n >= uw_inputs_len) {
adamc@801 833 uw_set_error(ctx, "For file input name %s, index %d is out of range", name, n);
adamc@801 834 return -1;
adamc@801 835 }
adamc@737 836
adamc@739 837 ctx->inputs[n].kind = FIL;
adamc@739 838 ctx->inputs[n].data.file = f;
adamc@801 839
adamc@801 840 return 0;
adamc@737 841 }
adamc@737 842
adamc@739 843 void *uw_malloc(uw_context ctx, size_t len);
adamc@739 844
adamc@760 845
adamc@760 846 static void parents(input *inp) {
adamc@760 847 printf("Stack: %p\n", inp);
adamc@760 848 while (inp) {
adamc@760 849 switch (inp->kind) {
adamc@760 850 case NORMAL:
adamc@760 851 printf("Normal(%p)\n", inp);
adamc@760 852 break;
adamc@760 853 case FIL:
adamc@760 854 printf("File(%p)\n", inp);
adamc@760 855 break;
adamc@760 856 case SUBFORM:
adamc@760 857 printf("Subform; fields = %p\n", inp->data.subform.fields);
adamc@760 858 inp = inp->data.subform.parent;
adamc@760 859 break;
adamc@760 860 case SUBFORMS:
adamc@760 861 printf("Subforms; entries = %p\n", inp->data.subforms.entries);
adamc@760 862 inp = inp->data.subforms.parent;
adamc@760 863 break;
adamc@760 864 case ENTRY:
adamc@760 865 printf("Entry; fields = %p; next = %p\n", inp->data.entry.fields, inp->data.entry.next);
adamc@760 866 inp = inp->data.entry.parent;
adamc@760 867 break;
adamc@760 868 default:
adamc@760 869 inp = NULL;
adamc@760 870 }
adamc@760 871 }
adamc@760 872 }
adamc@760 873
adamc@739 874 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737 875 if (n < 0)
adamc@737 876 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@737 877 if (n >= uw_inputs_len)
adamc@737 878 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737 879
adamc@756 880 switch (INP(ctx)[n].kind) {
adamc@737 881 case UNSET:
adamc@737 882 {
adamc@739 883 char *data = uw_malloc(ctx, 0);
adamc@740 884 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739 885 return f;
adamc@737 886 }
adamc@739 887 case FIL:
adamc@756 888 return INP(ctx)[n].data.file;
adamc@737 889 case NORMAL:
adamc@737 890 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756 891 case SUBFORM:
adamc@756 892 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759 893 case SUBFORMS:
adamc@759 894 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759 895 case ENTRY:
adamc@759 896 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737 897 default:
adamc@737 898 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 899 }
adamc@190 900 }
adamc@190 901
adamc@756 902 void uw_enter_subform(uw_context ctx, int n) {
adamc@756 903 if (n < 0)
adamc@756 904 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@756 905 if (n >= uw_inputs_len)
adamc@756 906 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756 907
adamc@756 908 switch (INP(ctx)[n].kind) {
adamc@756 909 case UNSET:
adamc@756 910 uw_error(ctx, FATAL, "Missing subform");
adamc@756 911 case FIL:
adamc@756 912 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756 913 case NORMAL:
adamc@756 914 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759 915 case SUBFORMS:
adamc@759 916 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759 917 case ENTRY:
adamc@759 918 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756 919 case SUBFORM:
adamc@759 920 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760 921 ctx->cur_container = &INP(ctx)[n];
adamc@756 922 return;
adamc@756 923 default:
adamc@756 924 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756 925 }
adamc@756 926 }
adamc@756 927
adamc@756 928 void uw_leave_subform(uw_context ctx) {
adamc@756 929 input *tmp;
adamc@756 930
adamc@759 931 if (ctx->cur_container == NULL)
adamc@756 932 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756 933
adamc@759 934 tmp = ctx->cur_container;
adamc@759 935 ctx->cur_container = tmp->data.subform.parent;
adamc@759 936 tmp->data.subform.parent = NULL;
adamc@759 937 }
adamc@759 938
adamc@759 939 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759 940 input *inps;
adamc@759 941
adamc@759 942 if (n < 0)
adamc@759 943 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@759 944 if (n >= uw_inputs_len)
adamc@759 945 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759 946
adamc@759 947 switch (INP(ctx)[n].kind) {
adamc@759 948 case UNSET:
adamc@759 949 uw_error(ctx, FATAL, "Missing subforms");
adamc@759 950 case FIL:
adamc@759 951 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759 952 case NORMAL:
adamc@759 953 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759 954 case SUBFORM:
adamc@759 955 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759 956 case ENTRY:
adamc@759 957 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759 958 case SUBFORMS:
adamc@759 959 inps = INP(ctx)[n].data.subforms.entries;
adamc@759 960 if (inps) {
adamc@759 961 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759 962 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759 963 return 1;
adamc@759 964 } else
adamc@759 965 return 0;
adamc@759 966 default:
adamc@759 967 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759 968 }
adamc@759 969 }
adamc@759 970
adamc@759 971 int uw_next_entry(uw_context ctx) {
adamc@759 972 if (ctx->cur_container == NULL)
adamc@759 973 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759 974
adamc@759 975 switch (ctx->cur_container->kind) {
adamc@759 976 case UNSET:
adamc@759 977 uw_error(ctx, FATAL, "Missing entry");
adamc@759 978 case FIL:
adamc@759 979 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759 980 case NORMAL:
adamc@759 981 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759 982 case SUBFORM:
adamc@759 983 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759 984 case SUBFORMS:
adamc@759 985 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759 986 case ENTRY:
adamc@759 987 if (ctx->cur_container->data.entry.next) {
adamc@759 988 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759 989 return 1;
adamc@759 990 } else {
adamc@759 991 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759 992 return 0;
adamc@759 993 }
adamc@759 994 default:
adamc@759 995 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759 996 }
adamc@756 997 }
adamc@756 998
adamc@643 999 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643 1000 ctx->script_header = s;
adamc@643 1001 }
adamc@643 1002
adamc@667 1003 void uw_set_url_prefix(uw_context ctx, const char *s) {
adamc@667 1004 ctx->url_prefix = s;
adamc@667 1005 }
adamc@667 1006
adamc@693 1007 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693 1008 ctx->needs_push = n;
adamc@693 1009 }
adamc@693 1010
adamc@736 1011 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736 1012 ctx->needs_sig = n;
adamc@736 1013 }
adamc@736 1014
adamc@667 1015
adamc@667 1016 static void buf_check_ctx(uw_context ctx, buf *b, size_t extra, const char *desc) {
adamc@666 1017 if (b->back - b->front < extra) {
adamc@666 1018 size_t desired = b->front - b->start + extra, next;
adamc@136 1019 char *new_heap;
adamc@136 1020
adamc@666 1021 next = b->back - b->start;
adamc@317 1022 if (next == 0)
adamc@317 1023 next = 1;
adamc@317 1024 for (; next < desired; next *= 2);
adamc@136 1025
adamc@666 1026 new_heap = realloc(b->start, next);
adamc@666 1027 b->front = new_heap + (b->front - b->start);
adamc@666 1028 b->back = new_heap + next;
adamc@136 1029
adamc@667 1030 if (new_heap != b->start) {
adamc@666 1031 b->start = new_heap;
adamc@666 1032 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously", desc);
adamc@136 1033 }
adamc@136 1034
adamc@666 1035 b->start = new_heap;
adamc@136 1036 }
adamc@136 1037 }
adamc@136 1038
adamc@832 1039 void uw_check_heap(uw_context ctx, size_t extra) {
adamc@667 1040 buf_check_ctx(ctx, &ctx->heap, extra, "heap chunk");
adamc@666 1041 }
adamc@666 1042
adamc@832 1043 char *uw_heap_front(uw_context ctx) {
adamc@832 1044 return ctx->heap.front;
adamc@832 1045 }
adamc@832 1046
adamc@832 1047 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832 1048 ctx->heap.front = fr;
adamc@832 1049 }
adamc@832 1050
adamc@311 1051 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136 1052 void *result;
adamc@136 1053
adamc@311 1054 uw_check_heap(ctx, len);
adamc@136 1055
adamc@666 1056 result = ctx->heap.front;
adamc@666 1057 ctx->heap.front += len;
adamc@136 1058 return result;
adamc@117 1059 }
adamc@117 1060
adamc@323 1061 void uw_begin_region(uw_context ctx) {
adamc@666 1062 regions *r = (regions *) ctx->heap.front;
adamc@323 1063
adamc@323 1064 uw_check_heap(ctx, sizeof(regions));
adamc@323 1065
adamc@666 1066 ctx->heap.front += sizeof(regions);
adamc@323 1067
adamc@323 1068 r->next = ctx->regions;
adamc@323 1069 ctx->regions = r;
adamc@323 1070 }
adamc@323 1071
adamc@323 1072 void uw_end_region(uw_context ctx) {
adamc@323 1073 regions *r = ctx->regions;
adamc@323 1074
adamc@323 1075 if (r == NULL)
adamc@323 1076 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323 1077
adamc@666 1078 ctx->heap.front = (char *) r;
adamc@323 1079 ctx->regions = r->next;
adamc@323 1080 }
adamc@323 1081
adamc@324 1082 void uw_memstats(uw_context ctx) {
adamc@666 1083 printf("Headers: %d/%d\n", buf_used(&ctx->outHeaders), buf_avail(&ctx->outHeaders));
adamc@666 1084 printf("Script: %d/%d\n", buf_used(&ctx->script), buf_avail(&ctx->script));
adamc@666 1085 printf("Page: %d/%d\n", buf_used(&ctx->page), buf_avail(&ctx->page));
adamc@666 1086 printf("Heap: %d/%d\n", buf_used(&ctx->heap), buf_avail(&ctx->heap));
adamc@324 1087 }
adamc@324 1088
adamc@311 1089 int uw_send(uw_context ctx, int sock) {
adamc@666 1090 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462 1091
adamc@462 1092 if (n < 0)
adamc@462 1093 return n;
adamc@462 1094
adamc@462 1095 n = uw_really_send(sock, "\r\n", 2);
adamc@462 1096
adamc@462 1097 if (n < 0)
adamc@462 1098 return n;
adamc@462 1099
adamc@666 1100 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462 1101 }
adamc@462 1102
adamc@856 1103 int uw_print(uw_context ctx, int fd) {
adamc@856 1104 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856 1105
adamc@856 1106 if (n < 0)
adamc@856 1107 return n;
adamc@856 1108
adamc@856 1109 n = uw_really_write(fd, "\r\n", 2);
adamc@856 1110
adamc@856 1111 if (n < 0)
adamc@856 1112 return n;
adamc@856 1113
adamc@856 1114 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856 1115 }
adamc@856 1116
adamc@860 1117 int uw_output(uw_context ctx, int (*output)(void *data, char *buf, size_t len), void *data) {
adamc@860 1118 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860 1119
adamc@860 1120 if (n < 0)
adamc@860 1121 return n;
adamc@860 1122
adamc@860 1123 n = output(data, "\r\n", 2);
adamc@860 1124
adamc@860 1125 if (n < 0)
adamc@860 1126 return n;
adamc@860 1127
adamc@860 1128 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860 1129 }
adamc@860 1130
adamc@462 1131 static void uw_check_headers(uw_context ctx, size_t extra) {
adamc@667 1132 buf_check(&ctx->outHeaders, extra);
adamc@462 1133 }
adamc@462 1134
adamc@462 1135 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462 1136 int len = strlen(s);
adamc@462 1137
adamc@462 1138 uw_check_headers(ctx, len + 1);
adamc@666 1139 strcpy(ctx->outHeaders.front, s);
adamc@666 1140 ctx->outHeaders.front += len;
adamc@562 1141 }
adamc@562 1142
adamc@562 1143 static void uw_check_script(uw_context ctx, size_t extra) {
adamc@667 1144 buf_check(&ctx->script, extra);
adamc@562 1145 }
adamc@562 1146
adamc@562 1147 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562 1148 int len = strlen(s);
adamc@562 1149
adamc@562 1150 uw_check_script(ctx, len + 1);
adamc@666 1151 strcpy(ctx->script.front, s);
adamc@666 1152 ctx->script.front += len;
adamc@562 1153 }
adamc@562 1154
adamc@645 1155 const char *uw_Basis_get_script(uw_context ctx, uw_unit u) {
adamc@916 1156 return "<sc>";
adamc@565 1157 }
adamc@565 1158
adamc@695 1159 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695 1160 if (s[0] == 0)
adamc@695 1161 return "";
adamc@695 1162 else {
adamc@695 1163 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695 1164 sprintf(r, " onload='%s'", s);
adamc@695 1165 return r;
adamc@695 1166 }
adamc@695 1167 }
adamc@695 1168
adamc@736 1169 extern uw_Basis_string uw_cookie_sig(uw_context);
adamc@736 1170
adamc@694 1171 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736 1172 if (ctx->client == NULL) {
adamc@736 1173 if (ctx->needs_sig) {
adamc@736 1174 char *sig = uw_cookie_sig(ctx);
adamc@736 1175 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736 1176 sprintf(r, "sig=\"%s\";", sig);
adamc@736 1177 return r;
adamc@736 1178 }
adamc@736 1179 else
adamc@736 1180 return "";
adamc@736 1181 } else {
adamc@736 1182 char *sig = ctx->needs_sig ? uw_cookie_sig(ctx) : "";
adamc@736 1183 char *r = uw_malloc(ctx, 59 + 3 * INTS_MAX + strlen(ctx->url_prefix)
adamc@736 1184 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adamc@736 1185 sprintf(r, "client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adamc@682 1186 ctx->client->id,
adamc@682 1187 ctx->client->pass,
adamc@679 1188 ctx->url_prefix,
adamc@736 1189 ctx->timeout,
adamc@736 1190 ctx->needs_sig ? "sig=\"" : "",
adamc@736 1191 sig,
adamc@736 1192 ctx->needs_sig ? "\";" : "");
adamc@679 1193 return r;
adamc@668 1194 }
adamc@667 1195 }
adamc@667 1196
adamc@574 1197 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574 1198 char *r, *s2;
adamc@574 1199
adamc@574 1200 uw_check_heap(ctx, strlen(s) * 4 + 2);
adamc@574 1201
adamc@666 1202 r = s2 = ctx->heap.front;
adamc@574 1203 *s2++ = '"';
adamc@574 1204
adamc@574 1205 for (; *s; s++) {
adamc@574 1206 char c = *s;
adamc@574 1207
adamc@574 1208 switch (c) {
adamc@574 1209 case '"':
adamc@574 1210 strcpy(s2, "\\\"");
adamc@574 1211 s2 += 2;
adamc@574 1212 break;
adamc@574 1213 case '\\':
adamc@574 1214 strcpy(s2, "\\\\");
adamc@574 1215 s2 += 2;
adamc@574 1216 break;
adamc@574 1217 default:
adamc@574 1218 if (isprint(c))
adamc@574 1219 *s2++ = c;
adamc@574 1220 else {
adamc@574 1221 sprintf(s2, "\\%3o", c);
adamc@574 1222 s2 += 4;
adamc@574 1223 }
adamc@574 1224 }
adamc@574 1225 }
adamc@574 1226
adamc@574 1227 strcpy(s2, "\"");
adamc@910 1228 ctx->heap.front = s2 + 2;
adamc@574 1229 return r;
adamc@574 1230 }
adamc@574 1231
adamc@574 1232 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574 1233 char *r, *s2;
adamc@574 1234
adamc@574 1235 uw_check_script(ctx, strlen(s) * 4 + 2);
adamc@574 1236
adamc@666 1237 r = s2 = ctx->script.front;
adamc@574 1238 *s2++ = '"';
adamc@574 1239
adamc@574 1240 for (; *s; s++) {
adamc@574 1241 char c = *s;
adamc@574 1242
adamc@574 1243 switch (c) {
adamc@577 1244 case '\'':
adamc@574 1245 strcpy(s2, "\\\"");
adamc@574 1246 s2 += 2;
adamc@574 1247 break;
adamc@574 1248 case '\\':
adamc@574 1249 strcpy(s2, "\\\\");
adamc@574 1250 s2 += 2;
adamc@574 1251 break;
adamc@574 1252 default:
adamc@574 1253 if (isprint(c))
adamc@574 1254 *s2++ = c;
adamc@574 1255 else {
adamc@574 1256 sprintf(s2, "\\%3o", c);
adamc@574 1257 s2 += 4;
adamc@574 1258 }
adamc@574 1259 }
adamc@574 1260 }
adamc@574 1261
adamc@574 1262 strcpy(s2, "\"");
adamc@666 1263 ctx->script.front = s2 + 1;
adamc@574 1264 return r;
adamc@574 1265 }
adamc@574 1266
adamc@682 1267 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1268 if (ctx->client == NULL || chn.cli != ctx->client->id)
adamc@682 1269 return "null";
adamc@682 1270 else {
adamc@682 1271 int len;
adamc@682 1272 char *r;
adamc@682 1273
adamc@682 1274 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1275 r = ctx->heap.front;
adamc@682 1276 sprintf(r, "%u%n", chn.chn, &len);
adamc@682 1277 ctx->heap.front += len+1;
adamc@682 1278 return r;
adamc@682 1279 }
adamc@682 1280 }
adamc@682 1281
adamc@577 1282 uw_Basis_int uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577 1283 int len;
adamc@577 1284 size_t s_len = strlen(s);
adamc@562 1285
adamc@577 1286 uw_check_script(ctx, 12 + INTS_MAX + s_len);
adamc@666 1287 sprintf(ctx->script.front, "var s%d=sc(%n", ctx->source_count, &len);
adamc@666 1288 ctx->script.front += len;
adamc@666 1289 strcpy(ctx->script.front, s);
adamc@666 1290 ctx->script.front += s_len;
adamc@666 1291 strcpy(ctx->script.front, ");");
adamc@666 1292 ctx->script.front += 2;
adamc@562 1293
adamc@565 1294 return ctx->source_count++;
adamc@117 1295 }
adamc@117 1296
adamc@577 1297 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_int n, uw_Basis_string s) {
adamc@577 1298 int len;
adamc@577 1299 size_t s_len = strlen(s);
adamc@577 1300
adamc@577 1301 uw_check_script(ctx, 6 + INTS_MAX + s_len);
adamc@844 1302 sprintf(ctx->script.front, "sv(s%d,%n", (int)n, &len);
adamc@666 1303 ctx->script.front += len;
adamc@666 1304 strcpy(ctx->script.front, s);
adamc@666 1305 ctx->script.front += s_len;
adamc@844 1306 strcpy(ctx->script.front, ");");
adamc@844 1307 ctx->script.front += 2;
adamc@577 1308
adamc@577 1309 return uw_unit_v;
adamc@577 1310 }
adamc@577 1311
adamc@311 1312 static void uw_check(uw_context ctx, size_t extra) {
adamc@667 1313 buf_check(&ctx->page, extra);
adamc@117 1314 }
adamc@117 1315
adamc@311 1316 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666 1317 *(ctx->page.front)++ = c;
adamc@117 1318 }
adamc@117 1319
adamc@311 1320 void uw_writec(uw_context ctx, char c) {
adamc@311 1321 uw_check(ctx, 1);
adamc@311 1322 uw_writec_unsafe(ctx, c);
adamc@117 1323 }
adamc@117 1324
adamc@311 1325 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117 1326 int len = strlen(s);
adamc@666 1327 memcpy(ctx->page.front, s, len);
adamc@666 1328 ctx->page.front += len;
adamc@117 1329 }
adamc@117 1330
adamc@311 1331 void uw_write(uw_context ctx, const char* s) {
adamc@311 1332 uw_check(ctx, strlen(s) + 1);
adamc@311 1333 uw_write_unsafe(ctx, s);
adamc@666 1334 *ctx->page.front = 0;
adamc@102 1335 }
adamc@106 1336
adamc@311 1337 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136 1338 char *result;
adamc@136 1339 int len;
adamc@311 1340 uw_check_heap(ctx, INTS_MAX);
adamc@666 1341 result = ctx->heap.front;
adamc@276 1342 sprintf(result, "%lld%n", n, &len);
adamc@666 1343 ctx->heap.front += len+1;
adamc@136 1344 return result;
adamc@106 1345 }
adamc@106 1346
adamc@311 1347 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136 1348 char *result;
adamc@136 1349 int len;
adamc@311 1350 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1351 result = ctx->heap.front;
adamc@136 1352 sprintf(result, "%g%n", n, &len);
adamc@666 1353 ctx->heap.front += len+1;
adamc@136 1354 return result;
adamc@106 1355 }
adamc@106 1356
adamc@311 1357 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136 1358 int len = strlen(s);
adamc@136 1359 char *result, *p;
adamc@311 1360 uw_check_heap(ctx, len * 6 + 1);
adamc@136 1361
adamc@666 1362 result = p = ctx->heap.front;
adamc@136 1363
adamc@136 1364 for (; *s; s++) {
adamc@136 1365 char c = *s;
adamc@136 1366
adamc@136 1367 if (c == '"') {
adamc@136 1368 strcpy(p, "&quot;");
adamc@136 1369 p += 6;
adamc@136 1370 } else if (c == '&') {
adamc@136 1371 strcpy(p, "&amp;");
adamc@136 1372 p += 5;
adamc@136 1373 }
adamc@136 1374 else if (isprint(c))
adamc@136 1375 *p++ = c;
adamc@136 1376 else {
adamc@136 1377 int len2;
adamc@136 1378 sprintf(p, "&#%d;%n", c, &len2);
adamc@136 1379 p += len2;
adamc@136 1380 }
adamc@136 1381 }
adamc@136 1382
adamc@137 1383 *p++ = 0;
adamc@666 1384 ctx->heap.front = p;
adamc@136 1385 return result;
adamc@106 1386 }
adamc@106 1387
adamc@721 1388 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721 1389 return s;
adamc@721 1390 }
adamc@721 1391
adamc@311 1392 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117 1393 int len;
adamc@117 1394
adamc@666 1395 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1396 ctx->page.front += len;
adamc@106 1397 }
adamc@106 1398
adamc@428 1399 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311 1400 uw_check(ctx, INTS_MAX);
adamc@311 1401 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428 1402
adamc@428 1403 return uw_unit_v;
adamc@106 1404 }
adamc@106 1405
adamc@428 1406 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117 1407 int len;
adamc@117 1408
adamc@311 1409 uw_check(ctx, FLOATS_MAX);
adamc@666 1410 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1411 ctx->page.front += len;
adamc@428 1412
adamc@428 1413 return uw_unit_v;
adamc@117 1414 }
adamc@117 1415
adamc@428 1416 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311 1417 uw_check(ctx, strlen(s) * 6);
adamc@117 1418
adamc@106 1419 for (; *s; s++) {
adamc@106 1420 char c = *s;
adamc@106 1421
adamc@106 1422 if (c == '"')
adamc@311 1423 uw_write_unsafe(ctx, "&quot;");
adamc@136 1424 else if (c == '&')
adamc@311 1425 uw_write_unsafe(ctx, "&amp;");
adamc@106 1426 else if (isprint(c))
adamc@311 1427 uw_writec_unsafe(ctx, c);
adamc@106 1428 else {
adamc@311 1429 uw_write_unsafe(ctx, "&#");
adamc@311 1430 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311 1431 uw_writec_unsafe(ctx, ';');
adamc@106 1432 }
adamc@106 1433 }
adamc@428 1434
adamc@428 1435 return uw_unit_v;
adamc@106 1436 }
adamc@120 1437
adamc@120 1438
adamc@311 1439 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137 1440 int len;
adamc@137 1441 char *r;
adamc@137 1442
adamc@311 1443 uw_check_heap(ctx, INTS_MAX);
adamc@666 1444 r = ctx->heap.front;
adamc@276 1445 sprintf(r, "%lld%n", n, &len);
adamc@666 1446 ctx->heap.front += len+1;
adamc@137 1447 return r;
adamc@120 1448 }
adamc@120 1449
adamc@682 1450 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1451 if (ctx->client == NULL || chn.cli != ctx->client->id)
adamc@682 1452 return "";
adamc@682 1453 else {
adamc@682 1454 int len;
adamc@682 1455 char *r;
adamc@679 1456
adamc@682 1457 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1458 r = ctx->heap.front;
adamc@682 1459 sprintf(r, "%u%n", chn.chn, &len);
adamc@682 1460 ctx->heap.front += len+1;
adamc@682 1461 return r;
adamc@682 1462 }
adamc@679 1463 }
adamc@679 1464
adamc@311 1465 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137 1466 int len;
adamc@137 1467 char *r;
adamc@137 1468
adamc@311 1469 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1470 r = ctx->heap.front;
adamc@137 1471 sprintf(r, "%g%n", n, &len);
adamc@666 1472 ctx->heap.front += len+1;
adamc@137 1473 return r;
adamc@120 1474 }
adamc@120 1475
adamc@311 1476 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137 1477 char *r, *p;
adamc@137 1478
adamc@311 1479 uw_check_heap(ctx, strlen(s) * 3 + 1);
adamc@137 1480
adamc@666 1481 for (r = p = ctx->heap.front; *s; s++) {
adamc@137 1482 char c = *s;
adamc@137 1483
adamc@137 1484 if (c == ' ')
adamc@137 1485 *p++ = '+';
adamc@137 1486 else if (isalnum(c))
adamc@137 1487 *p++ = c;
adamc@137 1488 else {
adamc@137 1489 sprintf(p, "%%%02X", c);
adamc@137 1490 p += 3;
adamc@137 1491 }
adamc@137 1492 }
adamc@137 1493
adamc@137 1494 *p++ = 0;
adamc@666 1495 ctx->heap.front = p;
adamc@137 1496 return r;
adamc@120 1497 }
adamc@120 1498
adamc@311 1499 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 1500 if (b == uw_Basis_False)
adamc@186 1501 return "0";
adamc@186 1502 else
adamc@186 1503 return "1";
adamc@186 1504 }
adamc@186 1505
adamc@311 1506 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120 1507 int len;
adamc@120 1508
adamc@666 1509 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1510 ctx->page.front += len;
adamc@120 1511 }
adamc@120 1512
adamc@428 1513 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311 1514 uw_check(ctx, INTS_MAX);
adamc@311 1515 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428 1516
adamc@428 1517 return uw_unit_v;
adamc@120 1518 }
adamc@120 1519
adamc@682 1520 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1521 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682 1522 int len;
adamc@682 1523
adamc@682 1524 uw_check(ctx, INTS_MAX + 1);
adamc@682 1525 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682 1526 ctx->page.front += len;
adamc@682 1527 }
adamc@682 1528
adamc@679 1529 return uw_unit_v;
adamc@679 1530 }
adamc@679 1531
adamc@428 1532 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120 1533 int len;
adamc@120 1534
adamc@311 1535 uw_check(ctx, FLOATS_MAX);
adamc@666 1536 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1537 ctx->page.front += len;
adamc@428 1538
adamc@428 1539 return uw_unit_v;
adamc@120 1540 }
adamc@120 1541
adamc@488 1542 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@488 1543 return uw_Basis_urlifyInt(ctx, t);
adamc@488 1544 }
adamc@488 1545
adamc@428 1546 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311 1547 uw_check(ctx, strlen(s) * 3);
adamc@120 1548
adamc@120 1549 for (; *s; s++) {
adamc@120 1550 char c = *s;
adamc@120 1551
adamc@120 1552 if (c == ' ')
adamc@311 1553 uw_writec_unsafe(ctx, '+');
adamc@120 1554 else if (isalnum(c))
adamc@311 1555 uw_writec_unsafe(ctx, c);
adamc@120 1556 else {
adamc@666 1557 sprintf(ctx->page.front, "%%%02X", c);
adamc@666 1558 ctx->page.front += 3;
adamc@120 1559 }
adamc@120 1560 }
adamc@428 1561
adamc@428 1562 return uw_unit_v;
adamc@120 1563 }
adamc@120 1564
adamc@428 1565 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311 1566 if (b == uw_Basis_False)
adamc@311 1567 uw_writec(ctx, '0');
adamc@186 1568 else
adamc@311 1569 uw_writec(ctx, '1');
adamc@428 1570
adamc@428 1571 return uw_unit_v;
adamc@186 1572 }
adamc@186 1573
adamc@120 1574
adamc@311 1575 static char *uw_unurlify_advance(char *s) {
adamc@144 1576 char *new_s = strchr(s, '/');
adamc@120 1577
adamc@120 1578 if (new_s)
adamc@120 1579 *new_s++ = 0;
adamc@120 1580 else
adamc@144 1581 new_s = strchr(s, 0);
adamc@144 1582
adamc@144 1583 return new_s;
adamc@144 1584 }
adamc@144 1585
adamc@311 1586 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311 1587 char *new_s = uw_unurlify_advance(*s);
adamc@311 1588 uw_Basis_int r;
adamc@120 1589
adamc@276 1590 r = atoll(*s);
adamc@120 1591 *s = new_s;
adamc@120 1592 return r;
adamc@120 1593 }
adamc@120 1594
adamc@311 1595 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311 1596 char *new_s = uw_unurlify_advance(*s);
adamc@311 1597 uw_Basis_float r;
adamc@120 1598
adamc@120 1599 r = atof(*s);
adamc@120 1600 *s = new_s;
adamc@120 1601 return r;
adamc@120 1602 }
adamc@120 1603
adamc@488 1604 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adamc@488 1605 return uw_Basis_unurlifyInt(ctx, s);
adamc@488 1606 }
adamc@488 1607
adamc@311 1608 static uw_Basis_string uw_unurlifyString_to(uw_context ctx, char *r, char *s) {
adamc@144 1609 char *s1, *s2;
adamc@144 1610 int n;
adamc@136 1611
adamc@144 1612 for (s1 = r, s2 = s; *s2; ++s1, ++s2) {
adamc@136 1613 char c = *s2;
adamc@136 1614
adamc@136 1615 switch (c) {
adamc@136 1616 case '+':
adamc@136 1617 *s1 = ' ';
adamc@136 1618 break;
adamc@136 1619 case '%':
adamc@169 1620 if (s2[1] == 0)
adamc@311 1621 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169 1622 if (s2[2] == 0)
adamc@311 1623 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169 1624 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@311 1625 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@136 1626 *s1 = n;
adamc@136 1627 s2 += 2;
adamc@136 1628 break;
adamc@136 1629 default:
adamc@136 1630 *s1 = c;
adamc@136 1631 }
adamc@136 1632 }
adamc@136 1633 *s1++ = 0;
adamc@144 1634 return s1;
adamc@144 1635 }
adamc@144 1636
adamc@311 1637 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311 1638 char *new_s = uw_unurlify_advance(*s);
adamc@311 1639 uw_Basis_bool r;
adamc@186 1640
adamc@186 1641 if (*s[0] == 0 || !strcmp(*s, "0") || !strcmp(*s, "off"))
adamc@311 1642 r = uw_Basis_False;
adamc@186 1643 else
adamc@311 1644 r = uw_Basis_True;
adamc@186 1645
adamc@186 1646 *s = new_s;
adamc@186 1647 return r;
adamc@186 1648 }
adamc@186 1649
adamc@311 1650 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311 1651 char *new_s = uw_unurlify_advance(*s);
adamc@144 1652 char *r, *s1, *s2;
adamc@144 1653 int len, n;
adamc@144 1654
adamc@200 1655 len = strlen(*s);
adamc@311 1656 uw_check_heap(ctx, len + 1);
adamc@144 1657
adamc@666 1658 r = ctx->heap.front;
adamc@666 1659 ctx->heap.front = uw_unurlifyString_to(ctx, ctx->heap.front, *s);
adamc@136 1660 *s = new_s;
adamc@136 1661 return r;
adamc@120 1662 }
adamc@135 1663
adamc@135 1664
adamc@311 1665 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286 1666 int len;
adamc@286 1667 char *r;
adamc@286 1668
adamc@311 1669 uw_check_heap(ctx, INTS_MAX);
adamc@666 1670 r = ctx->heap.front;
adamc@286 1671 sprintf(r, "%lld%n", n, &len);
adamc@666 1672 ctx->heap.front += len+1;
adamc@286 1673 return r;
adamc@286 1674 }
adamc@286 1675
adamc@428 1676 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286 1677 int len;
adamc@286 1678
adamc@311 1679 uw_check(ctx, INTS_MAX);
adamc@666 1680 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1681 ctx->page.front += len;
adamc@428 1682
adamc@428 1683 return uw_unit_v;
adamc@286 1684 }
adamc@286 1685
adamc@311 1686 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286 1687 int len;
adamc@286 1688 char *r;
adamc@286 1689
adamc@311 1690 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1691 r = ctx->heap.front;
adamc@286 1692 sprintf(r, "%g%n", n, &len);
adamc@666 1693 ctx->heap.front += len+1;
adamc@286 1694 return r;
adamc@286 1695 }
adamc@286 1696
adamc@428 1697 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286 1698 int len;
adamc@286 1699
adamc@311 1700 uw_check(ctx, FLOATS_MAX);
adamc@666 1701 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1702 ctx->page.front += len;
adamc@428 1703
adamc@428 1704 return uw_unit_v;
adamc@286 1705 }
adamc@286 1706
adamc@311 1707 char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137 1708 char *r, *s2;
adamc@137 1709
adamc@311 1710 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137 1711
adamc@666 1712 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@137 1713 char c = *s;
adamc@137 1714
adamc@137 1715 switch (c) {
adamc@137 1716 case '<':
adamc@137 1717 strcpy(s2, "&lt;");
adamc@137 1718 s2 += 4;
adamc@137 1719 break;
adamc@137 1720 case '&':
adamc@137 1721 strcpy(s2, "&amp;");
adamc@137 1722 s2 += 5;
adamc@137 1723 break;
adamc@137 1724 default:
adamc@137 1725 if (isprint(c))
adamc@137 1726 *s2++ = c;
adamc@137 1727 else {
adamc@137 1728 int len2;
adamc@137 1729 sprintf(s2, "&#%d;%n", c, &len2);
adamc@137 1730 s2 += len2;
adamc@137 1731 }
adamc@137 1732 }
adamc@137 1733 }
adamc@137 1734
adamc@137 1735 *s2++ = 0;
adamc@666 1736 ctx->heap.front = s2;
adamc@137 1737 return r;
adamc@135 1738 }
adamc@135 1739
adamc@428 1740 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321 1741 uw_check(ctx, strlen(s) * 6);
adamc@135 1742
adamc@135 1743 for (; *s; s++) {
adamc@135 1744 char c = *s;
adamc@135 1745
adamc@135 1746 switch (c) {
adamc@135 1747 case '<':
adamc@311 1748 uw_write_unsafe(ctx, "&lt;");
adamc@135 1749 break;
adamc@135 1750 case '&':
adamc@311 1751 uw_write_unsafe(ctx, "&amp;");
adamc@135 1752 break;
adamc@135 1753 default:
adamc@135 1754 if (isprint(c))
adamc@311 1755 uw_writec_unsafe(ctx, c);
adamc@135 1756 else {
adamc@311 1757 uw_write_unsafe(ctx, "&#");
adamc@311 1758 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311 1759 uw_writec_unsafe(ctx, ';');
adamc@135 1760 }
adamc@135 1761 }
adamc@135 1762 }
adamc@428 1763
adamc@428 1764 return uw_unit_v;
adamc@135 1765 }
adamc@180 1766
adamc@311 1767 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 1768 if (b == uw_Basis_False)
adamc@286 1769 return "False";
adamc@286 1770 else
adamc@286 1771 return "True";
adamc@286 1772 }
adamc@286 1773
adamc@428 1774 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311 1775 if (b == uw_Basis_False) {
adamc@311 1776 uw_check(ctx, 6);
adamc@666 1777 strcpy(ctx->page.front, "False");
adamc@666 1778 ctx->page.front += 5;
adamc@286 1779 } else {
adamc@311 1780 uw_check(ctx, 5);
adamc@666 1781 strcpy(ctx->page.front, "True");
adamc@666 1782 ctx->page.front += 4;
adamc@286 1783 }
adamc@428 1784
adamc@428 1785 return uw_unit_v;
adamc@286 1786 }
adamc@286 1787
adamc@436 1788 #define TIME_FMT "%x %X"
adamc@438 1789 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436 1790
adamc@436 1791 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436 1792 size_t len;
adamc@436 1793 char *r;
adamc@436 1794 struct tm stm;
adamc@436 1795
adamc@436 1796 if (localtime_r(&t, &stm)) {
adamc@436 1797 uw_check_heap(ctx, TIMES_MAX);
adamc@666 1798 r = ctx->heap.front;
adamc@436 1799 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 1800 ctx->heap.front += len+1;
adamc@436 1801 return r;
adamc@436 1802 } else
adamc@436 1803 return "<i>Invalid time</i>";
adamc@436 1804 }
adamc@436 1805
adamc@436 1806 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436 1807 size_t len;
adamc@436 1808 char *r;
adamc@436 1809 struct tm stm;
adamc@436 1810
adamc@436 1811 if (localtime_r(&t, &stm)) {
adamc@436 1812 uw_check(ctx, TIMES_MAX);
adamc@666 1813 r = ctx->page.front;
adamc@436 1814 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 1815 ctx->page.front += len;
adamc@436 1816 } else {
adamc@436 1817 uw_check(ctx, 20);
adamc@666 1818 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666 1819 ctx->page.front += 19;
adamc@436 1820 }
adamc@436 1821
adamc@436 1822 return uw_unit_v;
adamc@436 1823 }
adamc@436 1824
adamc@821 1825 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821 1826 if (n >= 0 && n < strlen(s))
adamc@821 1827 return s[n];
adamc@821 1828 else
adamc@821 1829 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adamc@821 1830 }
adamc@821 1831
adamc@821 1832 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821 1833 if (n >= 0 && n < strlen(s))
adamc@821 1834 return &s[n];
adamc@821 1835 else
adamc@821 1836 uw_error(ctx, FATAL, "Out-of-bounds strsuffix");
adamc@821 1837 }
adamc@821 1838
adamc@828 1839 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828 1840 return strlen(s);
adamc@828 1841 }
adamc@828 1842
adamc@829 1843 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829 1844 return strchr(s, ch);
adamc@829 1845 }
adamc@829 1846
adamc@831 1847 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831 1848 return strcspn(s, chs);
adamc@831 1849 }
adamc@831 1850
adamc@829 1851 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829 1852 uw_Basis_string r = strchr(s, ch);
adamc@829 1853 if (r == NULL)
adamc@829 1854 return NULL;
adamc@829 1855 else {
adamc@829 1856 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829 1857 *nr = r - s;
adamc@829 1858 return nr;
adamc@829 1859 }
adamc@829 1860 }
adamc@829 1861
adamc@311 1862 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828 1863 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180 1864 char *s;
adamc@180 1865
adamc@311 1866 uw_check_heap(ctx, len);
adamc@180 1867
adamc@666 1868 s = ctx->heap.front;
adamc@180 1869
adamc@180 1870 strcpy(s, s1);
adamc@180 1871 strcat(s, s2);
adamc@666 1872 ctx->heap.front += len;
adamc@180 1873
adamc@180 1874 return s;
adamc@180 1875 }
adamc@278 1876
adamc@829 1877 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829 1878 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829 1879
adamc@829 1880 if (start < 0)
adamc@829 1881 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829 1882 if (len < 0)
adamc@829 1883 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829 1884 if (start + len > full_len)
adamc@829 1885 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829 1886
adamc@829 1887 if (start + len == full_len)
adamc@829 1888 return &s[start];
adamc@829 1889 else {
adamc@829 1890 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@829 1891 memcpy(r, s, len);
adamc@829 1892 r[len] = 0;
adamc@829 1893 return r;
adamc@829 1894 }
adamc@829 1895
adamc@829 1896 }
adamc@829 1897
adamc@737 1898 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828 1899 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278 1900 char *s;
adamc@278 1901
adamc@311 1902 uw_check_heap(ctx, len);
adamc@278 1903
adamc@666 1904 s = ctx->heap.front;
adamc@278 1905
adamc@278 1906 strcpy(s, s1);
adamc@666 1907 ctx->heap.front += len;
adamc@278 1908
adamc@278 1909 return s;
adamc@278 1910 }
adamc@280 1911
adamc@737 1912 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493 1913 if (s1)
adamc@737 1914 return uw_strdup(ctx, s1);
adamc@493 1915 else
adamc@493 1916 return NULL;
adamc@493 1917 }
adamc@493 1918
adamc@742 1919 char *uw_memdup(uw_context ctx, const char *p, size_t len) {
adamc@742 1920 char *r = uw_malloc(ctx, len);
adamc@742 1921 memcpy(r, p, len);
adamc@742 1922 return r;
adamc@742 1923 }
adamc@280 1924
adamc@879 1925 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879 1926
adamc@311 1927 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281 1928 int len;
adamc@281 1929 char *r;
adamc@281 1930
adamc@311 1931 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666 1932 r = ctx->heap.front;
adamc@879 1933 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666 1934 ctx->heap.front += len+1;
adamc@281 1935 return r;
adamc@281 1936 }
adamc@281 1937
adamc@467 1938 char *uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int *n) {
adamc@467 1939 if (n == NULL)
adamc@467 1940 return "NULL";
adamc@467 1941 else
adamc@467 1942 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467 1943 }
adamc@467 1944
adamc@879 1945 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879 1946
adamc@311 1947 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281 1948 int len;
adamc@281 1949 char *r;
adamc@281 1950
adamc@311 1951 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666 1952 r = ctx->heap.front;
adamc@879 1953 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666 1954 ctx->heap.front += len+1;
adamc@281 1955 return r;
adamc@281 1956 }
adamc@281 1957
adamc@467 1958 char *uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float *n) {
adamc@467 1959 if (n == NULL)
adamc@467 1960 return "NULL";
adamc@467 1961 else
adamc@467 1962 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467 1963 }
adamc@467 1964
adamc@879 1965 int uw_Estrings = 1;
adamc@879 1966 char *uw_sqlsuffixString = "::text";
adamc@281 1967
adamc@311 1968 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280 1969 char *r, *s2;
adamc@280 1970
adamc@879 1971 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280 1972
adamc@666 1973 r = s2 = ctx->heap.front;
adamc@879 1974 if (uw_Estrings)
adamc@879 1975 *s2++ = 'E';
adamc@280 1976 *s2++ = '\'';
adamc@280 1977
adamc@280 1978 for (; *s; s++) {
adamc@280 1979 char c = *s;
adamc@280 1980
adamc@280 1981 switch (c) {
adamc@280 1982 case '\'':
adamc@885 1983 if (uw_Estrings)
adamc@885 1984 strcpy(s2, "\\'");
adamc@885 1985 else
adamc@885 1986 strcpy(s2, "''");
adamc@280 1987 s2 += 2;
adamc@280 1988 break;
adamc@280 1989 case '\\':
adamc@885 1990 if (uw_Estrings) {
adamc@885 1991 strcpy(s2, "\\\\");
adamc@885 1992 s2 += 2;
adamc@885 1993 } else
adamc@885 1994 *s2++ = '\\';
adamc@280 1995 break;
adamc@280 1996 default:
adamc@280 1997 if (isprint(c))
adamc@280 1998 *s2++ = c;
adamc@879 1999 else if (uw_Estrings) {
adamc@737 2000 sprintf(s2, "\\%03o", c);
adamc@280 2001 s2 += 4;
adamc@280 2002 }
adamc@879 2003 else
adamc@879 2004 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280 2005 }
adamc@280 2006 }
adamc@280 2007
adamc@879 2008 *s2++ = '\'';
adamc@879 2009 strcpy(s2, uw_sqlsuffixString);
adamc@879 2010 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280 2011 return r;
adamc@280 2012 }
adamc@281 2013
adamc@879 2014 char *uw_sqlsuffixBlob = "::bytea";
adamc@879 2015
adamc@737 2016 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737 2017 char *r, *s2;
adamc@737 2018 size_t i;
adamc@737 2019
adamc@879 2020 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737 2021
adamc@737 2022 r = s2 = ctx->heap.front;
adamc@879 2023 if (uw_Estrings)
adamc@879 2024 *s2++ = 'E';
adamc@737 2025 *s2++ = '\'';
adamc@737 2026
adamc@737 2027 for (i = 0; i < b.size; ++i) {
adamc@737 2028 char c = b.data[i];
adamc@737 2029
adamc@737 2030 switch (c) {
adamc@737 2031 case '\'':
adamc@885 2032 if (uw_Estrings)
adamc@885 2033 strcpy(s2, "\\'");
adamc@885 2034 else
adamc@885 2035 strcpy(s2, "''");
adamc@737 2036 s2 += 2;
adamc@737 2037 break;
adamc@737 2038 case '\\':
adamc@885 2039 if (uw_Estrings) {
adamc@885 2040 strcpy(s2, "\\\\\\\\");
adamc@885 2041 s2 += 4;
adamc@885 2042 } else
adamc@885 2043 *s2++ = '\\';
adamc@737 2044 break;
adamc@737 2045 default:
adamc@737 2046 if (isprint(c))
adamc@737 2047 *s2++ = c;
adamc@879 2048 else if (uw_Estrings) {
adamc@737 2049 sprintf(s2, "\\\\%03o", c);
adamc@737 2050 s2 += 5;
adamc@737 2051 }
adamc@879 2052 else
adamc@879 2053 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737 2054 }
adamc@737 2055 }
adamc@737 2056
adamc@879 2057 *s2++ = '\'';
adamc@879 2058 strcpy(s2, uw_sqlsuffixBlob);
adamc@879 2059 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737 2060 return r;
adamc@737 2061 }
adamc@737 2062
adamc@682 2063 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 2064 int len;
adamc@682 2065 char *r;
adamc@682 2066 unsigned long long combo = ((unsigned long long)chn.cli << 32) | chn.chn;
adamc@682 2067
adamc@682 2068 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682 2069 r = ctx->heap.front;
adamc@879 2070 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682 2071 ctx->heap.front += len+1;
adamc@682 2072 return r;
adamc@682 2073 }
adamc@682 2074
adamc@682 2075 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 2076 int len;
adamc@682 2077 char *r;
adamc@682 2078 unsigned long long combo = ((unsigned long long)chn.cli << 32) | chn.chn;
adamc@682 2079
adamc@682 2080 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 2081 r = ctx->heap.front;
adamc@682 2082 sprintf(r, "%lld%n", combo, &len);
adamc@682 2083 ctx->heap.front += len+1;
adamc@682 2084 return r;
adamc@682 2085 }
adamc@682 2086
adamc@879 2087 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879 2088
adamc@682 2089 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682 2090 int len;
adamc@682 2091 char *r;
adamc@682 2092
adamc@682 2093 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682 2094 r = ctx->heap.front;
adamc@879 2095 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682 2096 ctx->heap.front += len+1;
adamc@682 2097 return r;
adamc@682 2098 }
adamc@682 2099
adamc@682 2100 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682 2101 int len;
adamc@682 2102 char *r;
adamc@682 2103
adamc@682 2104 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 2105 r = ctx->heap.front;
adamc@682 2106 sprintf(r, "%u%n", cli, &len);
adamc@682 2107 ctx->heap.front += len+1;
adamc@682 2108 return r;
adamc@682 2109 }
adamc@682 2110
adamc@467 2111 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467 2112 if (s == NULL)
adamc@467 2113 return "NULL";
adamc@467 2114 else
adamc@467 2115 return uw_Basis_sqlifyString(ctx, s);
adamc@467 2116 }
adamc@467 2117
adamc@311 2118 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 2119 if (b == uw_Basis_False)
adamc@281 2120 return "FALSE";
adamc@281 2121 else
adamc@281 2122 return "TRUE";
adamc@281 2123 }
adamc@282 2124
adamc@467 2125 char *uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool *b) {
adamc@467 2126 if (b == NULL)
adamc@467 2127 return "NULL";
adamc@467 2128 else
adamc@467 2129 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467 2130 }
adamc@467 2131
adamc@439 2132 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439 2133 size_t len;
adamc@682 2134 char *r, *s;
adamc@682 2135 struct tm stm;
adamc@682 2136
adamc@682 2137 if (localtime_r(&t, &stm)) {
adamc@682 2138 s = uw_malloc(ctx, TIMES_MAX);
adamc@682 2139 len = strftime(s, TIMES_MAX, TIME_FMT, &stm);
adamc@682 2140 r = uw_malloc(ctx, len + 14);
adamc@682 2141 sprintf(r, "'%s'::timestamp", s);
adamc@682 2142 return r;
adamc@682 2143 } else
adamc@682 2144 return "<Invalid time>";
adamc@682 2145 }
adamc@682 2146
adamc@682 2147 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682 2148 size_t len;
adamc@439 2149 char *r;
adamc@439 2150 struct tm stm;
adamc@439 2151
adamc@439 2152 if (localtime_r(&t, &stm)) {
adamc@439 2153 uw_check_heap(ctx, TIMES_MAX);
adamc@666 2154 r = ctx->heap.front;
adamc@439 2155 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 2156 ctx->heap.front += len+1;
adamc@439 2157 return r;
adamc@439 2158 } else
adamc@439 2159 return "<Invalid time>";
adamc@439 2160 }
adamc@439 2161
adamc@467 2162 char *uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time *t) {
adamc@467 2163 if (t == NULL)
adamc@467 2164 return "NULL";
adamc@467 2165 else
adamc@467 2166 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467 2167 }
adamc@467 2168
adamc@311 2169 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311 2170 static uw_Basis_int true = 1;
adamc@311 2171 static uw_Basis_int false = 0;
adamc@282 2172
adamc@311 2173 if (b == uw_Basis_False)
adamc@282 2174 return (char *)&false;
adamc@282 2175 else
adamc@282 2176 return (char *)&true;
adamc@282 2177 }
adamc@284 2178
adamc@311 2179 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284 2180 int len;
adamc@284 2181 char *r;
adamc@284 2182
adamc@311 2183 uw_check_heap(ctx, INTS_MAX);
adamc@666 2184 r = ctx->heap.front;
adamc@284 2185 sprintf(r, "%lld%n", n, &len);
adamc@666 2186 ctx->heap.front += len+1;
adamc@284 2187 return r;
adamc@284 2188 }
adamc@285 2189
adamc@311 2190 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285 2191 int len;
adamc@285 2192 char *r;
adamc@285 2193
adamc@311 2194 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 2195 r = ctx->heap.front;
adamc@285 2196 sprintf(r, "%g%n", n, &len);
adamc@666 2197 ctx->heap.front += len+1;
adamc@285 2198 return r;
adamc@285 2199 }
adamc@285 2200
adamc@821 2201 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821 2202 char *r = uw_malloc(ctx, 2);
adamc@821 2203 r[0] = ch;
adamc@821 2204 r[1] = 0;
adamc@821 2205 return r;
adamc@821 2206 }
adamc@821 2207
adamc@311 2208 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311 2209 if (b == uw_Basis_False)
adamc@285 2210 return "False";
adamc@285 2211 else
adamc@285 2212 return "True";
adamc@285 2213 }
adamc@288 2214
adamc@436 2215 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436 2216 size_t len;
adamc@436 2217 char *r;
adamc@436 2218 struct tm stm;
adamc@436 2219
adamc@436 2220 if (localtime_r(&t, &stm)) {
adamc@436 2221 uw_check_heap(ctx, TIMES_MAX);
adamc@666 2222 r = ctx->heap.front;
adamc@436 2223 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 2224 ctx->heap.front += len+1;
adamc@436 2225 return r;
adamc@436 2226 } else
adamc@436 2227 return "<Invalid time>";
adamc@436 2228 }
adamc@288 2229
adamc@311 2230 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288 2231 char *endptr;
adamc@311 2232 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288 2233
adamc@288 2234 if (*s != '\0' && *endptr == '\0') {
adamc@311 2235 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288 2236 *r = n;
adamc@288 2237 return r;
adamc@288 2238 } else
adamc@288 2239 return NULL;
adamc@288 2240 }
adamc@289 2241
adamc@311 2242 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289 2243 char *endptr;
adamc@311 2244 uw_Basis_float n = strtod(s, &endptr);
adamc@289 2245
adamc@289 2246 if (*s != '\0' && *endptr == '\0') {
adamc@311 2247 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289 2248 *r = n;
adamc@289 2249 return r;
adamc@289 2250 } else
adamc@289 2251 return NULL;
adamc@289 2252 }
adamc@289 2253
adamc@821 2254 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821 2255 if (s[0] == 0) {
adamc@821 2256 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821 2257 r[0] = 0;
adamc@821 2258 return r;
adamc@821 2259 } else if (s[1] != 0)
adamc@821 2260 return NULL;
adamc@821 2261 else {
adamc@821 2262 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821 2263 r[0] = s[0];
adamc@821 2264 return r;
adamc@821 2265 }
adamc@821 2266 }
adamc@821 2267
adamc@311 2268 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311 2269 static uw_Basis_bool true = uw_Basis_True;
adamc@311 2270 static uw_Basis_bool false = uw_Basis_False;
adamc@289 2271
adamc@289 2272 if (!strcasecmp (s, "True"))
adamc@289 2273 return &true;
adamc@289 2274 else if (!strcasecmp (s, "False"))
adamc@289 2275 return &false;
adamc@289 2276 else
adamc@289 2277 return NULL;
adamc@289 2278 }
adamc@292 2279
adamc@436 2280 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438 2281 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adamc@436 2282 struct tm stm;
adamc@436 2283
adamc@439 2284 if (dot) {
adamc@439 2285 *dot = 0;
adamc@439 2286 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439 2287 *dot = '.';
adamc@439 2288 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439 2289 *r = mktime(&stm);
adamc@439 2290 return r;
adamc@439 2291 }
adamc@439 2292 else {
adamc@439 2293 *dot = '.';
adamc@439 2294 return NULL;
adamc@439 2295 }
adamc@436 2296 }
adamc@439 2297 else {
adamc@439 2298 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439 2299 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439 2300 *r = mktime(&stm);
adamc@439 2301 return r;
adamc@439 2302 }
adamc@439 2303 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439 2304 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439 2305 *r = mktime(&stm);
adamc@439 2306 return r;
adamc@439 2307 }
adamc@439 2308 else
adamc@439 2309 return NULL;
adamc@439 2310 }
adamc@436 2311 }
adamc@436 2312
adamc@311 2313 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292 2314 char *endptr;
adamc@311 2315 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292 2316
adamc@292 2317 if (*s != '\0' && *endptr == '\0')
adamc@292 2318 return n;
adamc@292 2319 else
adamc@311 2320 uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292 2321 }
adamc@293 2322
adamc@682 2323 #include <errno.h>
adamc@682 2324
adamc@678 2325 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682 2326 unsigned long long n;
adamc@682 2327
adamc@682 2328 if (sscanf(s, "%llu", &n) < 1)
adamc@682 2329 uw_error(ctx, FATAL, "Can't parse channel: %s", s);
adamc@682 2330 else {
adamc@682 2331 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682 2332 return ch;
adamc@682 2333 }
adamc@682 2334 }
adamc@682 2335
adamc@682 2336 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678 2337 char *endptr;
adamc@682 2338 unsigned long n = strtoul(s, &endptr, 10);
adamc@678 2339
adamc@678 2340 if (*s != '\0' && *endptr == '\0')
adamc@678 2341 return n;
adamc@678 2342 else
adamc@682 2343 uw_error(ctx, FATAL, "Can't parse client: %s", s);
adamc@678 2344 }
adamc@678 2345
adamc@311 2346 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293 2347 char *endptr;
adamc@311 2348 uw_Basis_float n = strtod(s, &endptr);
adamc@293 2349
adamc@293 2350 if (*s != '\0' && *endptr == '\0')
adamc@293 2351 return n;
adamc@293 2352 else
adamc@311 2353 uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293 2354 }
adamc@293 2355
adamc@821 2356 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821 2357 if (s[0] == 0)
adamc@821 2358 return 0;
adamc@821 2359 else if (s[1] != 0)
adamc@821 2360 uw_error(ctx, FATAL, "Can't parse char: %s", s);
adamc@821 2361 else
adamc@821 2362 return s[0];
adamc@821 2363 }
adamc@821 2364
adamc@311 2365 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296 2366 if (!strcasecmp(s, "T") || !strcasecmp (s, "True"))
adamc@311 2367 return uw_Basis_True;
adamc@296 2368 else if (!strcasecmp(s, "F") || !strcasecmp (s, "False"))
adamc@311 2369 return uw_Basis_False;
adamc@293 2370 else
adamc@311 2371 uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293 2372 }
adamc@436 2373
adamc@436 2374 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438 2375 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adamc@436 2376 struct tm stm = {};
adamc@436 2377
adamc@438 2378 if (dot) {
adamc@438 2379 *dot = 0;
adamc@438 2380 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438 2381 *dot = '.';
adamc@438 2382 return mktime(&stm);
adamc@438 2383 }
adamc@438 2384 else {
adamc@438 2385 *dot = '.';
adamc@438 2386 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438 2387 }
adamc@438 2388 }
adamc@438 2389 else {
adamc@439 2390 if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439 2391 return mktime(&stm);
adamc@439 2392 else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438 2393 return mktime(&stm);
adamc@438 2394 else
adamc@438 2395 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438 2396 }
adamc@436 2397 }
adamc@457 2398
adamc@742 2399 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742 2400 char *r = ctx->heap.front;
adamc@742 2401 uw_Basis_blob b = {len, r};
adamc@742 2402
adamc@742 2403 uw_check_heap(ctx, len);
adamc@742 2404
adamc@742 2405 while (*s) {
adamc@742 2406 if (s[0] == '\\') {
adamc@742 2407 if (s[1] == '\\') {
adamc@742 2408 *r++ = '\\';
adamc@742 2409 s += 2;
adamc@742 2410 } else if (isdigit(s[1]) && isdigit(s[2]) && isdigit(s[3])) {
adamc@742 2411 *r++ = (s[1] - '0') * 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742 2412 s += 4;
adamc@742 2413 }
adamc@742 2414 else {
adamc@742 2415 *r++ = '\\';
adamc@742 2416 ++s;
adamc@742 2417 }
adamc@742 2418 } else {
adamc@742 2419 *r++ = s[0];
adamc@742 2420 ++s;
adamc@742 2421 }
adamc@742 2422 }
adamc@742 2423
adamc@742 2424 b.size = r - ctx->heap.front;
adamc@742 2425 ctx->heap.front = r;
adamc@742 2426 return b;
adamc@742 2427 }
adamc@742 2428
adamc@463 2429 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463 2430 int len = strlen(c);
adamc@854 2431 char *p = ctx->outHeaders.start;
adamc@474 2432
adamc@474 2433 while (p = strstr(p, "\nSet-Cookie: ")) {
adamc@474 2434 char *p2;
adamc@474 2435 p += 13;
adamc@474 2436 p2 = strchr(p, '=');
adamc@474 2437
adamc@474 2438 if (p2) {
adamc@474 2439 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474 2440
adamc@474 2441 if (!strncasecmp(p, c, p2 - p)) {
adamc@474 2442 char *ret = uw_malloc(ctx, sz + 1);
adamc@474 2443 memcpy(ret, p2+1, sz);
adamc@474 2444 ret[sz] = 0;
adamc@474 2445 return ret;
adamc@474 2446 }
adamc@474 2447 }
adamc@474 2448 }
adamc@463 2449
adamc@854 2450 if (p = uw_Basis_requestHeader(ctx, "Cookie")) {
adamc@854 2451 while (1) {
adamc@854 2452 if (!strncmp(p, c, len) && p[len] == '=')
adamc@854 2453 return p + 1 + len;
adamc@854 2454 else if (p = strchr(p, ';'))
adamc@854 2455 p += 2;
adamc@463 2456 else
adamc@463 2457 return NULL;
adamc@463 2458 }
adamc@463 2459 }
adamc@792 2460
adamc@792 2461 return NULL;
adamc@457 2462 }
adamc@462 2463
adamc@466 2464 uw_unit uw_Basis_set_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c, uw_Basis_string v) {
adamc@462 2465 uw_write_header(ctx, "Set-Cookie: ");
adamc@462 2466 uw_write_header(ctx, c);
adamc@462 2467 uw_write_header(ctx, "=");
adamc@462 2468 uw_write_header(ctx, v);
adamc@466 2469 uw_write_header(ctx, "; path=");
adamc@466 2470 uw_write_header(ctx, prefix);
adamc@462 2471 uw_write_header(ctx, "\r\n");
adamc@462 2472
adamc@462 2473 return uw_unit_v;
adamc@462 2474 }
adamc@667 2475
adamc@682 2476 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682 2477 unsigned i;
adamc@682 2478 delta *d;
adamc@671 2479
adamc@682 2480 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682 2481 if (ctx->deltas[i].client == client)
adamc@682 2482 return &ctx->deltas[i];
adamc@671 2483
adamc@682 2484 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@682 2485 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adamc@682 2486 buf_init(&ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682 2487 }
adamc@671 2488
adamc@682 2489 d = &ctx->deltas[ctx->used_deltas++];
adamc@682 2490 d->client = client;
adamc@682 2491 buf_reset(&d->msgs);
adamc@682 2492 return d;
adamc@671 2493 }
adamc@671 2494
adamc@668 2495 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682 2496 if (ctx->client == NULL)
adamc@682 2497 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671 2498
adamc@682 2499 return new_channel(ctx->client);
adamc@668 2500 }
adamc@668 2501
adamc@668 2502 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682 2503 delta *d = allocate_delta(ctx, chn.cli);
adamc@682 2504 size_t len;
adamc@682 2505 int preLen;
adamc@682 2506 char pre[INTS_MAX + 2];
adamc@668 2507
adamc@682 2508 len = strlen(msg);
adamc@682 2509
adamc@682 2510 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682 2511
adamc@682 2512 buf_append(&d->msgs, pre, preLen);
adamc@682 2513 buf_append(&d->msgs, msg, len);
adamc@682 2514 buf_append(&d->msgs, "\n", 1);
adamc@671 2515
adamc@671 2516 return uw_unit_v;
adamc@668 2517 }
adamc@671 2518
adamc@671 2519 int uw_db_commit(uw_context);
adamc@671 2520 int uw_db_rollback(uw_context);
adamc@671 2521
adamc@671 2522 void uw_commit(uw_context ctx) {
adamc@682 2523 unsigned i;
adamc@671 2524
adamc@771 2525 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771 2526 if (ctx->transactionals[i].rollback != NULL)
adamc@771 2527 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771 2528
adamc@771 2529 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771 2530 if (ctx->transactionals[i].rollback == NULL)
adamc@771 2531 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771 2532
adamc@771 2533 if (uw_db_commit(ctx))
adamc@671 2534 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@682 2535
adamc@682 2536 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682 2537 delta *d = &ctx->deltas[i];
adamc@682 2538 client *c = find_client(d->client);
adamc@682 2539
adamc@682 2540 assert (c != NULL && c->mode == USED);
adamc@682 2541
adamc@685 2542 client_send(c, &d->msgs);
adamc@682 2543 }
adamc@682 2544
adamc@682 2545 if (ctx->client)
adamc@685 2546 release_client(ctx->client);
adamc@771 2547
adamc@771 2548 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771 2549 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@916 2550
adamc@916 2551 // Splice script data into appropriate part of page
adamc@916 2552 if (ctx->script_header[0] == 0)
adamc@916 2553 ;
adamc@916 2554 else if (buf_used(&ctx->script) == 0) {
adamc@916 2555 size_t len = strlen(ctx->script_header);
adamc@916 2556 char *start = strstr(ctx->page.start, "<sc>");
adamc@916 2557 if (start) {
adamc@916 2558 buf_check(&ctx->page, buf_used(&ctx->page) - 4 + len);
adamc@917 2559 start = strstr(ctx->page.start, "<sc>");
adamc@916 2560 memmove(start + len, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916 2561 ctx->page.front += len - 4;
adamc@916 2562 memcpy(start, ctx->script_header, len);
adamc@916 2563 }
adamc@916 2564 } else {
adamc@916 2565 size_t lenH = strlen(ctx->script_header), len = buf_used(&ctx->script);
adamc@916 2566 size_t lenP = lenH + 40 + len;
adamc@916 2567 char *start = strstr(ctx->page.start, "<sc>");
adamc@916 2568 if (start) {
adamc@916 2569 buf_check(&ctx->page, buf_used(&ctx->page) - 4 + lenP);
adamc@917 2570 start = strstr(ctx->page.start, "<sc>");
adamc@916 2571 memmove(start + lenP, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916 2572 ctx->page.front += lenP - 4;
adamc@916 2573 memcpy(start, ctx->script_header, lenH);
adamc@916 2574 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916 2575 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916 2576 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916 2577 }
adamc@916 2578 }
adamc@671 2579 }
adamc@671 2580
adamc@671 2581 int uw_rollback(uw_context ctx) {
adamc@771 2582 size_t i;
adamc@885 2583 cleanup *cl;
adamc@771 2584
adamc@682 2585 if (ctx->client)
adamc@685 2586 release_client(ctx->client);
adamc@671 2587
adamc@885 2588 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@885 2589 cl->func(cl->arg);
adamc@885 2590
adamc@885 2591 ctx->cleanup_front = ctx->cleanup;
adamc@885 2592
adamc@771 2593 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771 2594 if (ctx->transactionals[i].rollback != NULL)
adamc@771 2595 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@771 2596
adamc@771 2597 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771 2598 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@771 2599
adamc@671 2600 return uw_db_rollback(ctx);
adamc@671 2601 }
adamc@683 2602
adamc@771 2603 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adamc@771 2604 uw_callback free) {
adamc@771 2605 if (commit == NULL)
adamc@771 2606 uw_error(ctx, FATAL, "uw_register_transactional: NULL commit callback");
adamc@771 2607
adamc@771 2608 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@771 2609 ctx->transactionals = realloc(ctx->transactionals, ctx->used_transactionals+1);
adamc@771 2610 ++ctx->n_transactionals;
adamc@771 2611 }
adamc@771 2612
adamc@771 2613 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771 2614 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771 2615 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771 2616 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771 2617 }
adamc@771 2618
adamc@683 2619
adamc@683 2620 // "Garbage collection"
adamc@683 2621
adamc@683 2622 void uw_expunger(uw_context ctx, uw_Basis_client cli);
adamc@683 2623
adamc@683 2624 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli) {
adamc@683 2625 int r = setjmp(ctx->jmp_buf);
adamc@683 2626
adamc@684 2627 if (r == 0) {
adamc@684 2628 if (uw_db_begin(ctx))
adamc@684 2629 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@683 2630 uw_expunger(ctx, cli);
adamc@684 2631 if (uw_db_commit(ctx))
adamc@684 2632 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@684 2633 }
adamc@683 2634
adamc@683 2635 return r;
adamc@683 2636 }
adamc@683 2637
adamc@683 2638 void uw_prune_clients(uw_context ctx) {
adamc@683 2639 client *c, *next, *prev = NULL;
adamc@683 2640 time_t cutoff;
adamc@683 2641
adamc@683 2642 cutoff = time(NULL) - uw_timeout;
adamc@683 2643
adamc@683 2644 pthread_mutex_lock(&clients_mutex);
adamc@683 2645
adamc@683 2646 for (c = clients_used; c; c = next) {
adamc@683 2647 next = c->next;
adamc@683 2648 pthread_mutex_lock(&c->lock);
adamc@685 2649 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683 2650 failure_kind fk = UNLIMITED_RETRY;
adamc@683 2651 if (prev)
adamc@683 2652 prev->next = next;
adamc@683 2653 else
adamc@683 2654 clients_used = next;
adamc@684 2655 uw_reset(ctx);
adamc@683 2656 while (fk == UNLIMITED_RETRY) {
adamc@683 2657 fk = uw_expunge(ctx, c->id);
adamc@684 2658 if (fk == UNLIMITED_RETRY) {
adamc@684 2659 uw_db_rollback(ctx);
adamc@684 2660 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683 2661 }
adamc@683 2662 }
adamc@684 2663 if (fk == SUCCESS)
adamc@684 2664 free_client(c);
adamc@684 2665 else {
adamc@684 2666 uw_db_rollback(ctx);
adamc@856 2667 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@684 2668 }
adamc@683 2669 }
adamc@683 2670 else
adamc@683 2671 prev = c;
adamc@683 2672 pthread_mutex_unlock(&c->lock);
adamc@683 2673 }
adamc@683 2674
adamc@683 2675 pthread_mutex_unlock(&clients_mutex);
adamc@683 2676 }
adamc@687 2677
adamc@687 2678 void uw_initializer(uw_context ctx);
adamc@687 2679
adamc@687 2680 failure_kind uw_initialize(uw_context ctx) {
adamc@687 2681 int r = setjmp(ctx->jmp_buf);
adamc@687 2682
adamc@687 2683 if (r == 0) {
adamc@687 2684 if (uw_db_begin(ctx))
adamc@687 2685 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@687 2686 uw_initializer(ctx);
adamc@687 2687 if (uw_db_commit(ctx))
adamc@687 2688 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687 2689 }
adamc@687 2690
adamc@687 2691 return r;
adamc@687 2692 }
adamc@717 2693
adamc@770 2694 extern int uw_check_url(const char *);
adamc@770 2695 extern int uw_check_mime(const char *);
adamc@770 2696
adamc@717 2697 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@770 2698 if (uw_check_url(s))
adamc@770 2699 return s;
adamc@770 2700 else
adamc@770 2701 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717 2702 }
adamc@734 2703
adamc@770 2704 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@770 2705 if (uw_check_url(s))
adamc@770 2706 return s;
adamc@770 2707 else
adamc@770 2708 return NULL;
adamc@770 2709 }
adamc@770 2710
adamc@770 2711 int mime_format(const char *s) {
adamc@770 2712 for (; *s; ++s)
adamc@770 2713 if (!isalnum(*s) && *s != '/' && *s != '-' && *s != '.')
adamc@770 2714 return 0;
adamc@770 2715
adamc@770 2716 return 1;
adamc@770 2717 }
adamc@770 2718
adamc@741 2719 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770 2720 if (!mime_format(s))
adamc@770 2721 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770 2722
adamc@770 2723 if (uw_check_mime(s))
adamc@770 2724 return s;
adamc@770 2725 else
adamc@770 2726 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770 2727 }
adamc@770 2728
adamc@770 2729 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770 2730 if (!mime_format(s))
adamc@770 2731 return NULL;
adamc@770 2732
adamc@770 2733 if (uw_check_mime(s))
adamc@770 2734 return s;
adamc@770 2735 else
adamc@770 2736 return NULL;
adamc@741 2737 }
adamc@741 2738
adamc@734 2739 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734 2740 return s ? s : "";
adamc@734 2741 }
adamc@734 2742
adamc@734 2743 extern int uw_hash_blocksize;
adamc@734 2744
adamc@734 2745 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734 2746 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734 2747 int i;
adamc@734 2748
adamc@734 2749 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734 2750 sprintf(&r[2*i], "%.02X", ((unsigned char *)sig)[i]);
adamc@734 2751
adamc@734 2752 return r;
adamc@734 2753 }
adamc@734 2754
adamc@734 2755 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@734 2756 return uw_cookie_sig(ctx);
adamc@734 2757 }
adamc@737 2758
adamc@737 2759 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737 2760 return f.name;
adamc@737 2761 }
adamc@737 2762
adamc@740 2763 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740 2764 return f.type;
adamc@740 2765 }
adamc@740 2766
adamc@745 2767 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745 2768 return b.size;
adamc@745 2769 }
adamc@745 2770
adamc@737 2771 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737 2772 return f.data;
adamc@737 2773 }
adamc@741 2774
adamc@741 2775 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741 2776 cleanup *cl;
adamc@741 2777 int len;
adamc@741 2778
adamc@741 2779 buf_reset(&ctx->outHeaders);
adamc@741 2780 buf_reset(&ctx->page);
adamc@741 2781
adamc@856 2782 uw_write_header(ctx, on_success);
adamc@856 2783 uw_write_header(ctx, "Content-Type: ");
adamc@741 2784 uw_write_header(ctx, mimeType);
adamc@741 2785 uw_write_header(ctx, "\r\nContent-Length: ");
adamc@741 2786 buf_check(&ctx->outHeaders, INTS_MAX);
adamc@741 2787 sprintf(ctx->outHeaders.front, "%d%n", b.size, &len);
adamc@741 2788 ctx->outHeaders.front += len;
adamc@741 2789 uw_write_header(ctx, "\r\n");
adamc@741 2790
adamc@741 2791 buf_append(&ctx->page, b.data, b.size);
adamc@741 2792
adamc@741 2793 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741 2794 cl->func(cl->arg);
adamc@741 2795
adamc@741 2796 ctx->cleanup_front = ctx->cleanup;
adamc@741 2797
adamc@741 2798 longjmp(ctx->jmp_buf, RETURN_BLOB);
adamc@741 2799 }
adamc@874 2800
adamc@874 2801 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adamc@874 2802 uw_Basis_string r = uw_malloc(ctx, strlen(s) + 1);
adamc@874 2803
adamc@874 2804 for (; *s; ++s) {
adamc@874 2805 if (s[0] == '\'') {
adamc@874 2806 *r++ = '\'';
adamc@874 2807 for (++s; *s; ++s) {
adamc@874 2808 if (s[0] == '\'') {
adamc@874 2809 *r++ = '\'';
adamc@874 2810 break;
adamc@874 2811 } else if (s[0] == '\\') {
adamc@874 2812 if (s[1] == '\\') {
adamc@874 2813 *r++ = '\\';
adamc@874 2814 *r++ = '\\';
adamc@874 2815 ++s;
adamc@874 2816 } else if (s[1] == '\'') {
adamc@874 2817 *r++ = '\\';
adamc@874 2818 *r++ = '\'';
adamc@874 2819 ++s;
adamc@874 2820 } else
adamc@874 2821 *r++ = '\'';
adamc@874 2822 } else
adamc@874 2823 *r++ = s[0];
adamc@874 2824 }
adamc@874 2825 if (*s == 0) break;
adamc@874 2826 } else if (s[0] == 'T' && s[1] == '.')
adamc@874 2827 ++s;
adamc@874 2828 else
adamc@874 2829 *r++ = s[0];
adamc@874 2830 }
adamc@874 2831
adamc@874 2832 return r;
adamc@874 2833 }
adamc@874 2834