Ur/Web: src/c/urweb.c annotate

annotate src/c/urweb.c @ 2204:01c8aceac480

Finishes initial prototype, caching parameterless pages with table-match-based invalidation. Still has problems parsing non-Postgres SQL dialects properly.

author	Ziv Scully <ziv@mit.edu>
date	Tue, 27 May 2014 21:14:13 -0400
parents	94529780bbcf
children	c1a62ce47083

rev	line source
adamc@1268	1 #include "config.h"
adamc@1268	2
adamc@117	3 #include <stdlib.h>
adamc@102	4 #include <stdio.h>
adamc@117	5 #include <string.h>
adamc@457	6 #include <strings.h>
adamc@106	7 #include <ctype.h>
adamc@167	8 #include <setjmp.h>
adamc@167	9 #include <stdarg.h>
adamc@682	10 #include <assert.h>
adamc@741	11 #include <ctype.h>
adamc@1114	12 #include <limits.h>
adamc@1113	13 #include <stdint.h>
adamc@1094	14 #include <sys/types.h>
adamc@1094	15 #include <sys/socket.h>
adam@1397	16 #include <openssl/des.h>
adam@1486	17 #include <openssl/rand.h>
adam@1374	18 #include <time.h>
adam@1571	19 #include <math.h>
adamc@102	20
adamc@667	21 #include <pthread.h>
adamc@667	22
adamc@102	23 #include "types.h"
adamc@102	24
adam@1431	25 uw_unit uw_unit_v = 0;
adamc@102	26
adamc@667	27
adamc@667	28 // Socket extras
adamc@667	29
adamc@863	30 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667	31 while (len > 0) {
adamc@856	32 ssize_t n = send(sock, buf, len, 0);
adamc@856	33
adamc@856	34 if (n < 0)
adamc@856	35 return n;
adamc@856	36
adamc@856	37 buf += n;
adamc@856	38 len -= n;
adamc@856	39 }
adamc@856	40
adamc@856	41 return 0;
adamc@856	42 }
adamc@856	43
adamc@856	44 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856	45 while (len > 0) {
adamc@856	46 ssize_t n = write(fd, buf, len);
adamc@667	47
adamc@667	48 if (n < 0)
adamc@667	49 return n;
adamc@667	50
adamc@667	51 buf += n;
adamc@667	52 len -= n;
adamc@667	53 }
adamc@667	54
adamc@667	55 return 0;
adamc@667	56 }
adamc@667	57
adamc@667	58
adamc@667	59 // Buffers
adamc@667	60
adam@1369	61 void uw_buffer_init(size_t max, uw_buffer *b, size_t s) {
adamc@1113	62 b->max = max;
adamc@667	63 b->front = b->start = malloc(s);
adamc@667	64 b->back = b->front + s;
adamc@667	65 }
adamc@667	66
adam@1369	67 void uw_buffer_free(uw_buffer *b) {
adamc@667	68 free(b->start);
adamc@667	69 }
adamc@667	70
adam@1369	71 void uw_buffer_reset(uw_buffer *b) {
adamc@667	72 b->front = b->start;
adamc@667	73 }
adamc@667	74
adam@1369	75 int uw_buffer_check(uw_buffer *b, size_t extra) {
adamc@667	76 if (b->back - b->front < extra) {
adamc@667	77 size_t desired = b->front - b->start + extra, next;
adamc@667	78 char *new_heap;
adamc@667	79
adamc@667	80 next = b->back - b->start;
adamc@667	81 if (next == 0)
adamc@667	82 next = 1;
adamc@667	83 for (; next < desired; next *= 2);
adamc@667	84
adamc@1134	85 if (next > b->max) {
adamc@1113	86 if (desired <= b->max)
adamc@1113	87 next = desired;
adamc@1113	88 else
adamc@1113	89 return 1;
adamc@1134	90 }
adamc@1113	91
adamc@667	92 new_heap = realloc(b->start, next);
adamc@667	93 b->front = new_heap + (b->front - b->start);
adamc@667	94 b->back = new_heap + next;
adamc@667	95 b->start = new_heap;
adamc@667	96 }
adamc@1113	97
adamc@1113	98 return 0;
adamc@1113	99 }
adamc@1113	100
adamc@1113	101 __attribute__((noreturn)) void uw_error(uw_context, failure_kind, const char *, ...);
adamc@1113	102
adam@1369	103 static void ctx_uw_buffer_check(uw_context ctx, const char kind, uw_buffer b, size_t extra) {
adam@1369	104 if (uw_buffer_check(b, extra))
adamc@1113	105 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@667	106 }
adamc@667	107
adam@1369	108 size_t uw_buffer_used(uw_buffer *b) {
adamc@667	109 return b->front - b->start;
adamc@667	110 }
adamc@667	111
adam@1369	112 size_t uw_buffer_avail(uw_buffer *b) {
adamc@667	113 return b->back - b->start;
adamc@667	114 }
adamc@667	115
adam@1369	116 int uw_buffer_append(uw_buffer b, const char s, size_t len) {
adam@1369	117 if (uw_buffer_check(b, len+1))
adamc@1113	118 return 1;
adamc@1113	119
adamc@1113	120 memcpy(b->front, s, len);
adamc@1113	121 b->front += len;
adamc@1113	122 *b->front = 0;
adamc@1113	123
adamc@1113	124 return 0;
adamc@1113	125 }
adamc@1113	126
adam@1369	127 static void ctx_uw_buffer_append(uw_context ctx, const char kind, uw_buffer b, const char *s, size_t len) {
adam@1369	128 ctx_uw_buffer_check(ctx, kind, b, len+1);
adamc@1113	129
adamc@668	130 memcpy(b->front, s, len);
adamc@668	131 b->front += len;
adamc@672	132 *b->front = 0;
adamc@668	133 }
adamc@667	134
adamc@668	135
adamc@672	136 // Persistent state types
adamc@667	137
adamc@667	138 typedef enum { UNUSED, USED } usage;
adamc@667	139
adamc@667	140 typedef struct client {
adamc@682	141 unsigned id;
adamc@667	142 usage mode;
adamc@682	143 int pass;
adamc@682	144 struct client *next;
adamc@689	145 pthread_mutex_t lock, pull_lock;
adam@1369	146 uw_buffer msgs;
adamc@682	147 int sock;
adamc@863	148 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	149 int (*close)(int fd);
adamc@682	150 time_t last_contact;
adamc@682	151 unsigned n_channels;
adamc@685	152 unsigned refcount;
adamc@1121	153 void *data;
adamc@667	154 } client;
adamc@667	155
adamc@672	156
adamc@672	157 // Persistent client state
adamc@672	158
adamc@682	159 static client *clients, clients_free, *clients_used;
adamc@682	160 static unsigned n_clients;
adamc@667	161
adam@1707	162 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@1113	163 size_t uw_messages_max = SIZE_MAX;
adamc@1113	164 size_t uw_clients_max = SIZE_MAX;
adamc@1113	165
adamc@1121	166 void *uw_init_client_data();
adamc@1121	167 void uw_free_client_data(void *);
adamc@1121	168 void uw_copy_client_data(void dst, void src);
adamc@1121	169
adamc@682	170 static client *new_client() {
adamc@667	171 client *c;
adamc@667	172
adamc@667	173 pthread_mutex_lock(&clients_mutex);
adamc@667	174
adamc@667	175 if (clients_free) {
adamc@667	176 c = clients_free;
adamc@682	177 clients_free = clients_free->next;
adamc@667	178 }
adam@1672	179 else if (n_clients >= uw_clients_max) {
adam@1672	180 pthread_mutex_unlock(&clients_mutex);
adamc@1113	181 return NULL;
adam@1672	182 } else {
adamc@667	183 ++n_clients;
adamc@667	184 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	185 c = malloc(sizeof(client));
adamc@667	186 c->id = n_clients-1;
adamc@682	187 pthread_mutex_init(&c->lock, NULL);
adamc@689	188 pthread_mutex_init(&c->pull_lock, NULL);
adam@1369	189 uw_buffer_init(uw_messages_max, &c->msgs, 0);
adamc@667	190 clients[n_clients-1] = c;
adamc@667	191 }
adamc@667	192
adamc@682	193 pthread_mutex_lock(&c->lock);
adamc@667	194 c->mode = USED;
adamc@682	195 c->pass = rand();
adamc@682	196 c->sock = -1;
adamc@682	197 c->last_contact = time(NULL);
adam@1369	198 uw_buffer_reset(&c->msgs);
adamc@682	199 c->n_channels = 0;
adamc@685	200 c->refcount = 0;
adamc@1121	201 c->data = uw_init_client_data();
adamc@682	202 pthread_mutex_unlock(&c->lock);
adamc@682	203
adamc@682	204 c->next = clients_used;
adamc@682	205 clients_used = c;
adamc@667	206
adamc@667	207 pthread_mutex_unlock(&clients_mutex);
adamc@667	208
adamc@667	209 return c;
adamc@667	210 }
adamc@667	211
adamc@685	212 static void use_client(client *c) {
adamc@685	213 pthread_mutex_lock(&c->lock);
adamc@685	214 ++c->refcount;
adamc@685	215 pthread_mutex_unlock(&c->lock);
adamc@689	216 pthread_mutex_lock(&c->pull_lock);
adamc@685	217 }
adamc@685	218
adamc@685	219 static void release_client(client *c) {
adamc@689	220 pthread_mutex_unlock(&c->pull_lock);
adamc@685	221 pthread_mutex_lock(&c->lock);
adamc@685	222 --c->refcount;
adamc@685	223 pthread_mutex_unlock(&c->lock);
adamc@685	224 }
adamc@685	225
adamc@856	226 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adam@1707	227 static pthread_t pruning_thread;
adam@1707	228 static int pruning_thread_initialized = 0;
adamc@667	229
adamc@682	230 static client *find_client(unsigned id) {
adamc@667	231 client *c;
adam@1708	232 int i_am_pruner = pruning_thread_initialized && pthread_equal(pruning_thread, pthread_self());
adam@1708	233
adam@1708	234 if (!i_am_pruner) pthread_mutex_lock(&clients_mutex);
adamc@667	235
adamc@667	236 if (id >= n_clients) {
adam@1708	237 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	238 return NULL;
adamc@667	239 }
adamc@667	240
adamc@667	241 c = clients[id];
adamc@667	242
adam@1708	243 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	244 return c;
adamc@668	245 }
adamc@668	246
adamc@856	247 static char *on_success = "HTTP/1.1 200 OK\r\n";
adam@1409	248 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	249
adamc@856	250 void uw_set_on_success(char *s) {
adamc@856	251 on_success = s;
adamc@856	252 }
adamc@856	253
adam@1552	254 static void chastise(int (send)(int sockfd, const void buf, ssize_t len), int sock) {
adam@1552	255 send(sock, on_success, strlen(on_success));
adam@1552	256 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1552	257 send(sock, "R", 1);
adam@1552	258 close(sock);
adam@1552	259 }
adam@1552	260
adamc@863	261 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	262 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	263 int (*close)(int fd),
adamc@864	264 void *logger_data, uw_logger log_error) {
adamc@682	265 client *c = find_client(id);
adamc@668	266
adamc@668	267 if (c == NULL) {
adam@1552	268 chastise(send, sock);
adamc@864	269 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	270 return;
adamc@667	271 }
adamc@667	272
adamc@682	273 pthread_mutex_lock(&c->lock);
adamc@671	274
adamc@682	275 if (c->mode != USED) {
adamc@682	276 pthread_mutex_unlock(&c->lock);
adam@1552	277 chastise(send, sock);
adamc@864	278 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	279 return;
adamc@667	280 }
adamc@667	281
adamc@682	282 if (pass != c->pass) {
adamc@682	283 pthread_mutex_unlock(&c->lock);
adam@1552	284 chastise(send, sock);
adamc@864	285 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	286 return;
adamc@667	287 }
adamc@667	288
adamc@682	289 if (c->sock != -1) {
adamc@863	290 c->close(c->sock);
adamc@682	291 c->sock = -1;
adamc@682	292 }
adamc@667	293
adamc@682	294 c->last_contact = time(NULL);
adamc@682	295
adam@1369	296 if (uw_buffer_used(&c->msgs) > 0) {
adamc@863	297 send(sock, on_success, strlen(on_success));
adamc@863	298 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1369	299 send(sock, c->msgs.start, uw_buffer_used(&c->msgs));
adam@1369	300 uw_buffer_reset(&c->msgs);
adamc@667	301 close(sock);
adamc@667	302 }
adamc@863	303 else {
adamc@682	304 c->sock = sock;
adamc@863	305 c->send = send;
adamc@863	306 c->close = close;
adamc@863	307 }
adamc@667	308
adamc@682	309 pthread_mutex_unlock(&c->lock);
adamc@667	310 }
adamc@667	311
adamc@682	312 static void free_client(client *c) {
adamc@682	313 c->mode = UNUSED;
adamc@682	314 c->pass = -1;
adamc@667	315
adamc@682	316 c->next = clients_free;
adamc@682	317 clients_free = c;
adamc@667	318 }
adamc@667	319
adamc@682	320 static uw_Basis_channel new_channel(client *c) {
adamc@682	321 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	322 return ch;
adamc@668	323 }
adamc@668	324
adam@1447	325 static void client_send(client c, uw_buffer msg, const char *script, int script_len) {
adamc@685	326 pthread_mutex_lock(&c->lock);
adamc@671	327
adamc@682	328 if (c->sock != -1) {
adamc@863	329 c->send(c->sock, on_success, strlen(on_success));
adamc@863	330 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1447	331 if (script_len > 0) {
adam@1447	332 c->send(c->sock, "E\n", 2);
adam@1447	333 c->send(c->sock, script, script_len);
adam@1447	334 c->send(c->sock, "\n", 1);
adam@1447	335 }
adam@1369	336 c->send(c->sock, msg->start, uw_buffer_used(msg));
adamc@863	337 c->close(c->sock);
adamc@682	338 c->sock = -1;
adam@1665	339 } else if (uw_buffer_append(&c->msgs, msg->start, uw_buffer_used(msg)))
adamc@1113	340 fprintf(stderr, "Client message buffer size exceeded");
adamc@671	341
adamc@685	342 pthread_mutex_unlock(&c->lock);
adamc@668	343 }
adamc@668	344
adamc@668	345
adamc@668	346 // Global entry points
adamc@668	347
adamc@1164	348 extern void uw_global_custom();
adamc@1104	349 extern void uw_init_crypto();
adamc@1104	350
adamc@668	351 void uw_global_init() {
adamc@668	352 srand(time(NULL) ^ getpid());
adamc@668	353
adamc@668	354 clients = malloc(0);
adamc@1104	355
adamc@1164	356 uw_global_custom();
adamc@1104	357 uw_init_crypto();
adamc@1094	358 }
adamc@1094	359
adamc@1094	360 void uw_app_init(uw_app *app) {
adamc@1094	361 app->client_init();
adamc@668	362 }
adamc@668	363
adam@1332	364 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114	365
adamc@668	366
adamc@667	367 // Single-request state
adamc@667	368
adamc@323	369 typedef struct regions {
adamc@323	370 struct regions *next;
adamc@323	371 } regions;
adamc@323	372
adamc@425	373 typedef struct {
adamc@425	374 void (func)(void);
adamc@425	375 void *arg;
adamc@425	376 } cleanup;
adamc@425	377
adamc@671	378 typedef struct {
adamc@682	379 unsigned client;
adam@1369	380 uw_buffer msgs;
adamc@682	381 } delta;
adamc@671	382
adamc@737	383 typedef enum {
adamc@759	384 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	385 } input_kind;
adamc@737	386
adamc@756	387 typedef struct input {
adamc@737	388 input_kind kind;
adamc@737	389 union {
adamc@737	390 char *normal;
adamc@739	391 uw_Basis_file file;
adamc@756	392 struct {
adamc@759	393 struct input fields, parent;
adamc@756	394 } subform;
adamc@759	395 struct {
adamc@759	396 struct input entries, parent;
adamc@759	397 } subforms;
adamc@759	398 struct {
adamc@759	399 struct input fields, next, *parent;
adamc@759	400 } entry;
adamc@737	401 } data;
adamc@737	402 } input;
adamc@737	403
adamc@771	404 typedef struct {
adamc@771	405 void *data;
adam@1327	406 uw_callback commit, rollback;
adam@1327	407 uw_callback_with_retry free;
adamc@771	408 } transactional;
adamc@771	409
adamc@1061	410 typedef struct {
adamc@1061	411 char *name;
adamc@1061	412 void *data;
adamc@1061	413 void (free)(void);
adamc@1061	414 } global;
adamc@1061	415
adamc@311	416 struct uw_context {
adamc@1094	417 uw_app *app;
adam@1446	418 int id;
adamc@1094	419
adamc@854	420 char (get_header)(void , const char );
adamc@854	421 void *get_header_data;
adamc@457	422
adam@1799	423 char (get_env)(void , const char );
adam@1799	424 void *get_env_data;
adam@1799	425
adam@1369	426 uw_buffer outHeaders, page, heap, script;
adam@1451	427 int allowed_to_return_indirectly, returning_indirectly;
adamc@759	428 input inputs, subinputs, *cur_container;
adamc@1094	429 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	430
adam@1446	431 unsigned long long source_count;
adamc@562	432
adamc@272	433 void *db;
adam@1931	434 int transaction_started;
adamc@272	435
adamc@167	436 jmp_buf jmp_buf;
adamc@167	437
adamc@323	438 regions *regions;
adamc@323	439
adamc@425	440 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	441
adamc@1094	442 const char *script_header;
adamc@643	443
adam@1936	444 int needs_push, needs_sig, could_write_db;
adamc@693	445
adamc@682	446 size_t n_deltas, used_deltas;
adamc@682	447 delta *deltas;
adamc@671	448
adamc@682	449 client *client;
adamc@682	450
adamc@771	451 transactional *transactionals;
adamc@771	452 size_t n_transactionals, used_transactionals;
adamc@771	453
adamc@1061	454 global *globals;
adamc@1061	455 size_t n_globals;
adamc@1061	456
adamc@1066	457 char *current_url;
adamc@1066	458
adamc@1114	459 int deadline;
adamc@1114	460
adamc@1121	461 void *client_data;
adamc@1121	462
adam@1334	463 void *logger_data;
adam@1334	464 uw_logger log_debug;
adam@1334	465
adam@1386	466 int isPost, hasPostBody;
adam@1347	467 uw_Basis_postBody postBody;
adam@1370	468 uw_Basis_string queryString;
adam@1347	469
adam@1556	470 unsigned nextId;
adam@1556	471
adam@1782	472 int amInitializing;
adam@1782	473
adamc@167	474 char error_message[ERROR_BUF_LEN];
adam@1877	475
adam@1877	476 int usedSig, needsResig;
adam@1949	477
adam@1949	478 char *output_buffer;
adam@1949	479 size_t output_buffer_size;
ziv@2204	480
ziv@2204	481 // For caching.
ziv@2204	482 char *recording;
adamc@117	483 };
adamc@117	484
adamc@1113	485 size_t uw_headers_max = SIZE_MAX;
adamc@1113	486 size_t uw_page_max = SIZE_MAX;
adamc@1113	487 size_t uw_heap_max = SIZE_MAX;
adamc@1113	488 size_t uw_script_max = SIZE_MAX;
adamc@1113	489
adam@1446	490 uw_context uw_init(int id, void *logger_data, uw_logger log_debug) {
adamc@311	491 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	492
adamc@1094	493 ctx->app = NULL;
adam@1446	494 ctx->id = id;
adamc@1094	495
adamc@854	496 ctx->get_header = NULL;
adamc@854	497 ctx->get_header_data = NULL;
adamc@457	498
adam@1799	499 ctx->get_env = NULL;
adam@1799	500 ctx->get_env_data = NULL;
adam@1799	501
adam@1413	502 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413	503 ctx->outHeaders.start[0] = 0;
adam@1413	504 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413	505 ctx->page.start[0] = 0;
adam@1451	506 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	507 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369	508 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667	509 ctx->script.start[0] = 0;
adamc@136	510
adamc@1094	511 ctx->inputs = malloc(0);
adamc@759	512 ctx->cur_container = NULL;
adamc@756	513 ctx->subinputs = malloc(0);
adamc@1094	514 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	515
adamc@272	516 ctx->db = NULL;
adam@1931	517 ctx->transaction_started = 0;
adamc@272	518
adamc@323	519 ctx->regions = NULL;
adamc@323	520
adamc@425	521 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	522
adamc@643	523 ctx->script_header = "";
adamc@693	524 ctx->needs_push = 0;
adamc@736	525 ctx->needs_sig = 0;
adam@1936	526 ctx->could_write_db = 1;
adamc@1104	527
adamc@565	528 ctx->source_count = 0;
adamc@562	529
adamc@682	530 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	531 ctx->deltas = malloc(0);
adamc@671	532
adamc@700	533 ctx->client = NULL;
adamc@700	534
adamc@700	535 ctx->error_message[0] = 0;
adamc@700	536
adamc@771	537 ctx->transactionals = malloc(0);
adamc@771	538 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	539
adamc@1061	540 ctx->globals = malloc(0);
adamc@1061	541 ctx->n_globals = 0;
adamc@1061	542
adamc@1066	543 ctx->current_url = "";
adamc@1066	544
adamc@1114	545 ctx->deadline = INT_MAX;
adamc@1114	546
adamc@1121	547 ctx->client_data = uw_init_client_data();
adamc@1121	548
adam@1334	549 ctx->logger_data = logger_data;
adam@1334	550 ctx->log_debug = log_debug;
adam@1334	551
adam@1386	552 ctx->isPost = ctx->hasPostBody = 0;
adam@1347	553
adam@1370	554 ctx->queryString = NULL;
adam@1370	555
adam@1556	556 ctx->nextId = 0;
adam@1556	557
adam@1782	558 ctx->amInitializing = 0;
adam@1782	559
adam@1877	560 ctx->usedSig = 0;
adam@1877	561 ctx->needsResig = 0;
adam@1877	562
adam@1949	563 ctx->output_buffer = malloc(1);
adam@1949	564 ctx->output_buffer_size = 1;
adam@1949	565
ziv@2204	566 ctx->recording = 0;
ziv@2204	567
adamc@117	568 return ctx;
adamc@106	569 }
adamc@106	570
adamc@1113	571 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	572
adamc@1121	573 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	574 return ctx->app;
adamc@1121	575 }
adamc@1121	576
adamc@1113	577 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	578 ctx->app = app;
adamc@1094	579
adamc@1105	580 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	581 if (app->inputs_len > uw_inputs_max)
adamc@1113	582 return 1;
adamc@1113	583
adamc@1094	584 ctx->sz_inputs = app->inputs_len;
adamc@1094	585 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	586 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	587 }
adamc@1134	588
adamc@1134	589 return 0;
adamc@1094	590 }
adamc@1094	591
adamc@1121	592 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	593 uw_copy_client_data(ctx->client_data, data);
adamc@1121	594 }
adamc@1121	595
adamc@311	596 void uw_set_db(uw_context ctx, void *db) {
adamc@272	597 ctx->db = db;
adamc@272	598 }
adamc@272	599
adamc@311	600 void *uw_get_db(uw_context ctx) {
adamc@272	601 return ctx->db;
adamc@272	602 }
adamc@272	603
adamc@311	604 void uw_free(uw_context ctx) {
adamc@671	605 size_t i;
adamc@671	606
adam@1369	607 uw_buffer_free(&ctx->outHeaders);
adam@1369	608 uw_buffer_free(&ctx->script);
adam@1369	609 uw_buffer_free(&ctx->page);
adam@1369	610 uw_buffer_free(&ctx->heap);
adamc@144	611 free(ctx->inputs);
adamc@756	612 free(ctx->subinputs);
adamc@425	613 free(ctx->cleanup);
adamc@771	614 free(ctx->transactionals);
adamc@1121	615 uw_free_client_data(ctx->client_data);
adamc@671	616
adamc@682	617 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	618 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	619 free(ctx->deltas);
adamc@671	620
adamc@1061	621 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	622 if (ctx->globals[i].free)
adamc@1089	623 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	624 free(ctx->globals);
adamc@1061	625
adam@1949	626 free(ctx->output_buffer);
adam@1949	627
adamc@136	628 free(ctx);
adamc@136	629 }
adamc@136	630
adamc@562	631 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	632 uw_buffer_reset(&ctx->outHeaders);
adam@1369	633 uw_buffer_reset(&ctx->script);
adamc@667	634 ctx->script.start[0] = 0;
adam@1369	635 uw_buffer_reset(&ctx->page);
adam@1451	636 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	637 uw_buffer_reset(&ctx->heap);
adamc@323	638 ctx->regions = NULL;
adamc@425	639 ctx->cleanup_front = ctx->cleanup;
adamc@682	640 ctx->used_deltas = 0;
adamc@682	641 ctx->client = NULL;
adamc@759	642 ctx->cur_container = NULL;
adamc@771	643 ctx->used_transactionals = 0;
adamc@1117	644 ctx->script_header = "";
adam@1370	645 ctx->queryString = NULL;
adam@1556	646 ctx->nextId = 0;
adam@1782	647 ctx->amInitializing = 0;
adam@1877	648 ctx->usedSig = 0;
adam@1877	649 ctx->needsResig = 0;
adamc@167	650 }
adamc@167	651
adamc@562	652 void uw_reset_keep_request(uw_context ctx) {
adamc@562	653 uw_reset_keep_error_message(ctx);
adamc@562	654 ctx->error_message[0] = 0;
adamc@167	655 }
adamc@167	656
adamc@311	657 void uw_reset(uw_context ctx) {
adamc@311	658 uw_reset_keep_request(ctx);
adamc@1105	659 if (ctx->app)
adamc@1105	660 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	661 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461	662 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adam@1943	663 ctx->transaction_started = 0;
adamc@144	664 }
adamc@144	665
adamc@311	666 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	667 int r = setjmp(ctx->jmp_buf);
adamc@272	668
adamc@1105	669 if (r == 0 && ctx->app)
adamc@1094	670 ctx->app->db_init(ctx);
adamc@272	671
adamc@272	672 return r;
adamc@272	673 }
adamc@272	674
adamc@1118	675 void uw_close(uw_context ctx) {
adamc@1118	676 ctx->app->db_close(ctx);
adamc@1118	677 }
adamc@1118	678
adam@1446	679 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	680 return ctx->get_header(ctx->get_header_data, h);
adam@1446	681 }
adam@1446	682
adamc@854	683 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	684 ctx->get_header = get_header;
adamc@854	685 ctx->get_header_data = get_header_data;
adamc@742	686 }
adamc@742	687
adam@1799	688 void uw_set_env(uw_context ctx, char (get_env)(void , const char ), void *get_env_data) {
adam@1799	689 ctx->get_env = get_env;
adam@1799	690 ctx->get_env_data = get_env_data;
adam@1799	691 }
adam@1799	692
adamc@801	693 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	694 va_list ap;
adamc@801	695 va_start(ap, fmt);
adamc@801	696
adamc@801	697 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	698 }
adamc@801	699
adamc@1131	700 int uw_has_error(uw_context ctx) {
adamc@1131	701 return ctx->error_message[0] != 0;
adamc@1131	702 }
adamc@1131	703
adamc@311	704 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	705 cleanup *cl;
adamc@425	706
adamc@167	707 va_list ap;
adamc@167	708 va_start(ap, fmt);
adamc@167	709
adamc@167	710 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	711
adamc@425	712 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	713 cl->func(cl->arg);
adamc@425	714
adamc@425	715 ctx->cleanup_front = ctx->cleanup;
adamc@425	716
adamc@190	717 longjmp(ctx->jmp_buf, fk);
adamc@167	718 }
adamc@167	719
adamc@1113	720 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	721
adamc@425	722 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	723 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	724 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	725 if (len == 0)
adamc@425	726 newLen = 1;
adamc@425	727 else
adamc@428	728 newLen = len * 2;
adamc@1113	729
adamc@1134	730 if (newLen > uw_cleanup_max) {
adamc@1113	731 if (len+1 <= uw_cleanup_max)
adamc@1113	732 newLen = uw_cleanup_max;
adamc@1113	733 else
adamc@1113	734 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	735 }
adamc@1113	736
adamc@470	737 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	738 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	739 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	740 }
adamc@425	741
adamc@425	742 ctx->cleanup_front->func = func;
adamc@425	743 ctx->cleanup_front->arg = arg;
adamc@425	744 ++ctx->cleanup_front;
adamc@425	745 }
adamc@425	746
adam@1444	747 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	748
adamc@682	749 void uw_login(uw_context ctx) {
adam@1942	750 char id_s, pass_s;
adam@1942	751
adam@1942	752 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adam@1942	753 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adam@1942	754 unsigned id = atoi(id_s);
adam@1942	755 int pass = atoi(pass_s);
adam@1942	756 client *c = find_client(id);
adam@1942	757
adam@1942	758 if (c == NULL)
adam@1942	759 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", uw_Basis_htmlifyString(ctx, id_s), uw_Basis_htmlifyString(ctx, pass_s));
adam@1942	760 else {
adamc@685	761 use_client(c);
adamc@682	762 ctx->client = c;
adam@1942	763
adam@1942	764 if (c->mode != USED)
adam@1942	765 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adam@1942	766 if (c->pass != pass)
adam@1942	767 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@864	768 }
adam@1942	769 } else if (ctx->needs_push) {
adam@1942	770 client *c = new_client();
adam@1942	771
adam@1942	772 if (c == NULL)
adam@1942	773 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adam@1942	774
adam@1942	775 use_client(c);
adam@1942	776 uw_copy_client_data(c->data, ctx->client_data);
adam@1942	777 ctx->client = c;
adamc@682	778 }
adamc@682	779 }
adamc@682	780
adamc@671	781 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	782 int r = setjmp(ctx->jmp_buf);
adamc@671	783
adam@1931	784 if (r == 0)
adam@1931	785 ctx->app->handle(ctx, path);
adam@1931	786
adam@1931	787 return r;
adam@1931	788 }
adam@1931	789
adam@1931	790 void uw_ensure_transaction(uw_context ctx) {
adam@1931	791 if (!ctx->transaction_started) {
adam@1936	792 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adamc@671	793 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1931	794 ctx->transaction_started = 1;
adamc@671	795 }
adamc@671	796 }
adamc@671	797
adamc@772	798 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	799 if (ctx->client == NULL)
adamc@682	800 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	801
adamc@682	802 return ctx->client->id;
adamc@682	803 }
adamc@682	804
adamc@425	805 void uw_pop_cleanup(uw_context ctx) {
adamc@425	806 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	807 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	808
adamc@425	809 --ctx->cleanup_front;
adamc@425	810 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	811 }
adamc@425	812
adamc@311	813 char *uw_error_message(uw_context ctx) {
adamc@167	814 return ctx->error_message;
adamc@167	815 }
adamc@167	816
adamc@1115	817 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	818 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	819 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	820 }
adamc@1115	821
adamc@759	822 static input *INP(uw_context ctx) {
adamc@759	823 if (ctx->cur_container == NULL)
adamc@759	824 return ctx->inputs;
adamc@759	825 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	826 return ctx->cur_container->data.subform.fields;
adamc@759	827 else if (ctx->cur_container->kind == ENTRY)
adamc@759	828 return ctx->cur_container->data.entry.fields;
adamc@759	829 else
adamc@760	830 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	831 }
adamc@759	832
adamc@760	833 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	834 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	835 *ptr += new_start - old_start;
adamc@760	836 }
adamc@760	837
adamc@760	838 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	839 switch (x->kind) {
adamc@759	840 case SUBFORM:
adamc@760	841 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	842 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	843 break;
adamc@759	844 case SUBFORMS:
adamc@760	845 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	846 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	847 break;
adamc@759	848 case ENTRY:
adamc@760	849 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	850 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	851 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	852 break;
adamc@1134	853 default:
adamc@1134	854 break;
phurst@1981	855 }
adamc@759	856 }
adamc@759	857
adamc@1113	858 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	859
adamc@759	860 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	861 size_t i;
adamc@759	862 input *r;
adamc@759	863
adamc@759	864 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	865 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	866 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	867
adamc@759	868 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	869
adamc@760	870 if (ctx->subinputs != new_subinputs) {
adamc@760	871 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	872 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	873 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	874 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	875
adamc@760	876 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	877
adamc@760	878 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	879 ctx->subinputs = new_subinputs;
adamc@760	880 }
adamc@759	881 }
adamc@759	882
adamc@759	883 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	884
adamc@759	885 for (i = 0; i < len; ++i)
adam@1474	886 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	887
adamc@759	888 return r;
adamc@759	889 }
adamc@756	890
adamc@801	891 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	892 //printf("Input name %s\n", name);
adamc@1038	893
adamc@756	894 if (!strcasecmp(name, ".b")) {
adamc@1094	895 int n = ctx->app->input_num(value);
adamc@756	896 input *inps;
adamc@756	897
adamc@801	898 if (n < 0) {
adam@1444	899 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	900 return -1;
adamc@801	901 }
adamc@801	902
adamc@1094	903 if (n >= ctx->app->inputs_len) {
adam@1444	904 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	905 return -1;
adamc@801	906 }
adamc@756	907
adamc@1094	908 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	909
adamc@759	910 INP(ctx)[n].kind = SUBFORM;
adamc@759	911 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	912 INP(ctx)[n].data.subform.fields = inps;
adamc@759	913 ctx->cur_container = &INP(ctx)[n];
adamc@756	914 } else if (!strcasecmp(name, ".e")) {
adamc@756	915 input *tmp;
adamc@756	916
adamc@801	917 if (ctx->cur_container == NULL) {
adamc@801	918 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	919 return -1;
adamc@801	920 }
adamc@756	921
adamc@759	922 tmp = ctx->cur_container;
adamc@759	923 switch (tmp->kind) {
adamc@759	924 case SUBFORM:
adamc@759	925 ctx->cur_container = tmp->data.subform.parent;
adamc@759	926 tmp->data.subform.parent = NULL;
adamc@759	927 break;
adamc@759	928 case SUBFORMS:
adamc@759	929 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	930 tmp->data.subforms.parent = NULL;
adamc@759	931 break;
adamc@759	932 case ENTRY:
adamc@759	933 ctx->cur_container = tmp->data.entry.parent;
adamc@759	934 break;
adamc@759	935 default:
adamc@801	936 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	937 return -1;
adamc@759	938 }
adamc@759	939 } else if (!strcasecmp(name, ".s")) {
adamc@1094	940 int n = ctx->app->input_num(value);
adamc@759	941
adamc@801	942 if (n < 0) {
adam@1444	943 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	944 return -1;
adamc@801	945 }
adamc@801	946
adamc@1094	947 if (n >= ctx->app->inputs_len) {
adam@1444	948 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	949 return -1;
adamc@801	950 }
adamc@759	951
adamc@759	952 INP(ctx)[n].kind = SUBFORMS;
adamc@759	953 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	954 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	955 ctx->cur_container = &INP(ctx)[n];
adamc@759	956 } else if (!strcasecmp(name, ".i")) {
adamc@759	957 input *inps;
adamc@759	958
adamc@801	959 if (!ctx->cur_container) {
adamc@801	960 uw_set_error(ctx, "New entry without container");
adamc@801	961 return -1;
adamc@801	962 }
adamc@801	963
adamc@801	964 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	965 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	966 return -1;
adamc@801	967 }
adamc@759	968
adamc@1094	969 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	970
adamc@759	971 inps->kind = ENTRY;
adamc@759	972 inps->data.entry.parent = ctx->cur_container;
adamc@759	973 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	974 ctx->cur_container->data.subforms.entries = inps;
adamc@759	975
adamc@759	976 inps->data.entry.fields = inps+1;
adamc@759	977 ctx->cur_container = inps;
adamc@756	978 } else {
adamc@1094	979 int n = ctx->app->input_num(name);
adamc@756	980
adam@1384	981 if (n < 0)
adam@1384	982 return 0;
adamc@801	983
adamc@1094	984 if (n >= ctx->app->inputs_len) {
adam@1444	985 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	986 return -1;
adamc@801	987 }
adamc@756	988
adamc@756	989 INP(ctx)[n].kind = NORMAL;
adamc@756	990 INP(ctx)[n].data.normal = value;
adamc@756	991 }
adamc@801	992
adamc@801	993 return 0;
adamc@144	994 }
adamc@144	995
adamc@311	996 char *uw_get_input(uw_context ctx, int n) {
adamc@169	997 if (n < 0)
adamc@311	998 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	999 if (n >= ctx->app->inputs_len)
adamc@311	1000 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1001
adamc@756	1002 switch (INP(ctx)[n].kind) {
adamc@737	1003 case UNSET:
adamc@737	1004 return NULL;
adamc@739	1005 case FIL:
adamc@739	1006 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1007 case SUBFORM:
adamc@756	1008 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1009 case SUBFORMS:
adamc@759	1010 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1011 case ENTRY:
adamc@759	1012 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1013 case NORMAL:
adamc@756	1014 return INP(ctx)[n].data.normal;
adamc@737	1015 default:
adamc@737	1016 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1017 }
adamc@138	1018 }
adamc@138	1019
adamc@311	1020 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	1021 if (n < 0)
adamc@311	1022 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1023 if (n >= ctx->app->inputs_len)
adamc@311	1024 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1025
adamc@756	1026 switch (INP(ctx)[n].kind) {
adamc@737	1027 case UNSET:
adamc@737	1028 return "";
adamc@739	1029 case FIL:
adamc@739	1030 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1031 case SUBFORM:
adamc@756	1032 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1033 case SUBFORMS:
adamc@759	1034 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1035 case ENTRY:
adamc@759	1036 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1037 case NORMAL:
adamc@756	1038 return INP(ctx)[n].data.normal;
adamc@737	1039 default:
adamc@737	1040 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1041 }
adamc@737	1042 }
adamc@737	1043
adamc@801	1044 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1045 int n = ctx->app->input_num(name);
adamc@737	1046
adamc@801	1047 if (n < 0) {
adam@1444	1048 uw_set_error(ctx, "Bad file input name %s", uw_Basis_htmlifyString(ctx, name));
adamc@801	1049 return -1;
adamc@801	1050 }
adamc@801	1051
adamc@1094	1052 if (n >= ctx->app->inputs_len) {
adam@1444	1053 uw_set_error(ctx, "For file input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	1054 return -1;
adamc@801	1055 }
adamc@737	1056
adamc@739	1057 ctx->inputs[n].kind = FIL;
adamc@739	1058 ctx->inputs[n].data.file = f;
adamc@801	1059
adamc@801	1060 return 0;
adamc@737	1061 }
adamc@737	1062
adamc@739	1063 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1064
adamc@739	1065 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1066 if (n < 0)
adamc@737	1067 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1068 if (n >= ctx->app->inputs_len)
adamc@737	1069 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1070
adamc@756	1071 switch (INP(ctx)[n].kind) {
adamc@737	1072 case UNSET:
adamc@737	1073 {
adamc@739	1074 char *data = uw_malloc(ctx, 0);
adamc@740	1075 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1076 return f;
adamc@737	1077 }
adamc@739	1078 case FIL:
adamc@756	1079 return INP(ctx)[n].data.file;
adamc@737	1080 case NORMAL:
adamc@737	1081 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1082 case SUBFORM:
adamc@756	1083 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1084 case SUBFORMS:
adamc@759	1085 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1086 case ENTRY:
adamc@759	1087 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1088 default:
adamc@737	1089 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1090 }
adamc@190	1091 }
adamc@190	1092
adamc@756	1093 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1094 if (n < 0)
adamc@756	1095 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1096 if (n >= ctx->app->inputs_len)
adamc@756	1097 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1098
adamc@756	1099 switch (INP(ctx)[n].kind) {
adamc@756	1100 case UNSET:
adamc@756	1101 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1102 case FIL:
adamc@756	1103 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1104 case NORMAL:
adamc@756	1105 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1106 case SUBFORMS:
adamc@759	1107 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1108 case ENTRY:
adamc@759	1109 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1110 case SUBFORM:
adamc@759	1111 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1112 ctx->cur_container = &INP(ctx)[n];
adamc@756	1113 return;
adamc@756	1114 default:
adamc@756	1115 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1116 }
adamc@756	1117 }
adamc@756	1118
adamc@756	1119 void uw_leave_subform(uw_context ctx) {
adamc@756	1120 input *tmp;
adamc@756	1121
adamc@759	1122 if (ctx->cur_container == NULL)
adamc@756	1123 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1124
adamc@759	1125 tmp = ctx->cur_container;
adamc@759	1126 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1127 tmp->data.subform.parent = NULL;
adamc@759	1128 }
adamc@759	1129
adamc@759	1130 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1131 input *inps;
adamc@759	1132
adamc@759	1133 if (n < 0)
adamc@759	1134 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1135 if (n >= ctx->app->inputs_len)
adamc@759	1136 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1137
adamc@759	1138 switch (INP(ctx)[n].kind) {
adamc@759	1139 case UNSET:
adamc@759	1140 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1141 case FIL:
adamc@759	1142 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1143 case NORMAL:
adamc@759	1144 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1145 case SUBFORM:
adamc@759	1146 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1147 case ENTRY:
adamc@759	1148 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1149 case SUBFORMS:
adamc@759	1150 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1151 if (inps) {
adamc@759	1152 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1153 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1154 return 1;
adamc@759	1155 } else
adamc@759	1156 return 0;
adamc@759	1157 default:
adamc@759	1158 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1159 }
adamc@759	1160 }
adamc@759	1161
adamc@759	1162 int uw_next_entry(uw_context ctx) {
adamc@759	1163 if (ctx->cur_container == NULL)
adamc@759	1164 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1165
adamc@759	1166 switch (ctx->cur_container->kind) {
adamc@759	1167 case UNSET:
adamc@759	1168 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1169 case FIL:
adamc@759	1170 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1171 case NORMAL:
adamc@759	1172 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1173 case SUBFORM:
adamc@759	1174 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1175 case SUBFORMS:
adamc@759	1176 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1177 case ENTRY:
adamc@759	1178 if (ctx->cur_container->data.entry.next) {
adamc@759	1179 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1180 return 1;
adamc@759	1181 } else {
adamc@759	1182 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1183 return 0;
adamc@759	1184 }
adamc@759	1185 default:
adamc@759	1186 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1187 }
adamc@756	1188 }
adamc@756	1189
adamc@643	1190 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1191 ctx->script_header = s;
adamc@643	1192 }
adamc@643	1193
adamc@1094	1194 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1195 return ctx->app->url_prefix;
adamc@667	1196 }
adamc@667	1197
adamc@693	1198 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1199 ctx->needs_push = n;
adamc@693	1200 }
adamc@693	1201
adamc@736	1202 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1203 ctx->needs_sig = n;
adamc@736	1204 }
adamc@736	1205
adam@1936	1206 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936	1207 ctx->could_write_db = n;
adam@1936	1208 }
adam@1936	1209
adamc@667	1210
adam@1369	1211 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1212 if (b->back - b->front < extra) {
adamc@666	1213 size_t desired = b->front - b->start + extra, next;
adamc@136	1214 char *new_heap;
adamc@136	1215
adamc@666	1216 next = b->back - b->start;
adamc@317	1217 if (next == 0)
adamc@317	1218 next = 1;
adamc@317	1219 for (; next < desired; next *= 2);
adamc@136	1220
adamc@1134	1221 if (next > b->max) {
adamc@1113	1222 if (desired <= b->max)
adamc@1113	1223 next = desired;
adamc@1113	1224 else
adamc@1113	1225 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1226 }
adamc@1113	1227
adamc@666	1228 new_heap = realloc(b->start, next);
adamc@666	1229 b->front = new_heap + (b->front - b->start);
adamc@666	1230 b->back = new_heap + next;
adamc@136	1231
adamc@667	1232 if (new_heap != b->start) {
adamc@666	1233 b->start = new_heap;
adam@1389	1234 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1235 }
adamc@136	1236
adamc@666	1237 b->start = new_heap;
adamc@136	1238 }
adamc@136	1239 }
adamc@136	1240
adamc@832	1241 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1242 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1243 }
adamc@666	1244
adamc@832	1245 char *uw_heap_front(uw_context ctx) {
adamc@832	1246 return ctx->heap.front;
adamc@832	1247 }
adamc@832	1248
adamc@832	1249 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1250 ctx->heap.front = fr;
adamc@832	1251 }
adamc@832	1252
adam@1782	1253 void uw_begin_initializing(uw_context ctx) {
adam@1782	1254 ctx->amInitializing = 1;
adam@1782	1255 }
adam@1782	1256
adam@1782	1257 void uw_end_initializing(uw_context ctx) {
adam@1782	1258 ctx->amInitializing = 0;
adam@1782	1259 }
adam@1782	1260
adamc@311	1261 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136	1262 void *result;
adamc@136	1263
adam@1782	1264 if (ctx->amInitializing) {
adam@1782	1265 result = malloc(len);
adam@1782	1266
adam@1782	1267 if (result)
adam@1782	1268 return result;
adam@1782	1269 else
adam@1782	1270 uw_error(ctx, FATAL, "uw_malloc: malloc() returns 0");
adam@1782	1271 } else {
adam@1782	1272 uw_check_heap(ctx, len);
adam@1782	1273
adam@1782	1274 result = ctx->heap.front;
adam@1782	1275 ctx->heap.front += len;
adam@1782	1276 return result;
adam@1782	1277 }
adamc@117	1278 }
adamc@117	1279
adamc@323	1280 void uw_begin_region(uw_context ctx) {
adamc@666	1281 regions r = (regions ) ctx->heap.front;
adamc@323	1282
adamc@323	1283 uw_check_heap(ctx, sizeof(regions));
adamc@323	1284
adamc@666	1285 ctx->heap.front += sizeof(regions);
adamc@323	1286
adamc@323	1287 r->next = ctx->regions;
adamc@323	1288 ctx->regions = r;
adamc@323	1289 }
adamc@323	1290
adamc@323	1291 void uw_end_region(uw_context ctx) {
adamc@323	1292 regions *r = ctx->regions;
adamc@323	1293
adamc@323	1294 if (r == NULL)
adamc@323	1295 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1296
adamc@666	1297 ctx->heap.front = (char *) r;
adamc@323	1298 ctx->regions = r->next;
adamc@323	1299 }
adamc@323	1300
adamc@324	1301 void uw_memstats(uw_context ctx) {
adam@1369	1302 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1303 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1304 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1305 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1306 }
adamc@324	1307
adam@1915	1308 int uw_pagelen(uw_context ctx) {
adam@1915	1309 return ctx->page.front - ctx->page.start;
adam@1915	1310 }
adam@1915	1311
adamc@311	1312 int uw_send(uw_context ctx, int sock) {
adam@1949	1313 size_t target_length = (ctx->outHeaders.front - ctx->outHeaders.start) + 2 + (ctx->page.front - ctx->page.start);
adam@1949	1314
adam@1949	1315 if (ctx->output_buffer_size < target_length) {
adam@1949	1316 do {
adam@1949	1317 ctx->output_buffer_size *= 2;
adam@1949	1318 } while (ctx->output_buffer_size < target_length);
adam@1949	1319 ctx->output_buffer = realloc(ctx->output_buffer, ctx->output_buffer_size);
adam@1949	1320 }
adam@1949	1321
adam@1949	1322 memcpy(ctx->output_buffer, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adam@1949	1323 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start), "\r\n", 2);
adam@1949	1324 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start) + 2, ctx->page.start, ctx->page.front - ctx->page.start);
adam@1949	1325
adam@1949	1326 return uw_really_send(sock, ctx->output_buffer, target_length);
adamc@462	1327 }
adamc@462	1328
adamc@856	1329 int uw_print(uw_context ctx, int fd) {
adamc@856	1330 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1331
adamc@856	1332 if (n < 0)
adamc@856	1333 return n;
adamc@856	1334
adamc@856	1335 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1336
adamc@856	1337 if (n < 0)
adamc@856	1338 return n;
adamc@856	1339
adamc@856	1340 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1341 }
adamc@856	1342
adamc@860	1343 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1344 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1345
adamc@860	1346 if (n < 0)
adamc@860	1347 return n;
adamc@860	1348
adamc@860	1349 n = output(data, "\r\n", 2);
adamc@860	1350
adamc@860	1351 if (n < 0)
adamc@860	1352 return n;
adamc@860	1353
adamc@860	1354 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1355 }
adamc@860	1356
adamc@462	1357 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1358 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1359 }
adamc@462	1360
adamc@462	1361 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1362 int len = strlen(s);
adamc@462	1363
adamc@462	1364 uw_check_headers(ctx, len + 1);
adamc@666	1365 strcpy(ctx->outHeaders.front, s);
adamc@666	1366 ctx->outHeaders.front += len;
adamc@562	1367 }
adamc@562	1368
adam@1934	1369 int uw_has_contentLength(uw_context ctx) {
adam@1934	1370 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934	1371 }
adam@1934	1372
adamc@1110	1373 void uw_clear_headers(uw_context ctx) {
adam@1369	1374 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1375 }
adamc@1110	1376
adam@1932	1377 void uw_Basis_clear_page(uw_context ctx) {
adam@1932	1378 uw_buffer_reset(&ctx->page);
adam@1932	1379 }
adam@1932	1380
adamc@562	1381 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1382 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1383 }
adamc@562	1384
adamc@562	1385 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1386 int len = strlen(s);
adamc@562	1387
adamc@562	1388 uw_check_script(ctx, len + 1);
adamc@666	1389 strcpy(ctx->script.front, s);
adamc@666	1390 ctx->script.front += len;
adamc@562	1391 }
adamc@562	1392
adam@1446	1393 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1394 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1395 uw_write_script(ctx, "sig=\"");
adam@1671	1396 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1397 uw_write_script(ctx, "\";");
adam@1671	1398 }
adam@1671	1399
adam@1446	1400 return ctx->script.start;
adam@1446	1401 }
adam@1446	1402
adamc@695	1403 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1404 if (s[0] == 0)
adamc@695	1405 return "";
adamc@695	1406 else {
adamc@695	1407 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1408 sprintf(r, " onload='%s'", s);
adamc@695	1409 return r;
adamc@695	1410 }
adamc@695	1411 }
adamc@695	1412
adamc@1042	1413 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1414 if (ctx->script_header[0] == 0)
adamc@1042	1415 return "";
adamc@1042	1416 else {
vshabanoff@1763	1417 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763	1418 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042	1419 return r;
adamc@1042	1420 }
adamc@1042	1421 }
adamc@1042	1422
adamc@694	1423 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1424 if (ctx->client == NULL) {
adamc@736	1425 if (ctx->needs_sig) {
adamc@1094	1426 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1427 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1428 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1429 return r;
adamc@736	1430 }
adamc@736	1431 else
adamc@736	1432 return "";
adamc@736	1433 } else {
adamc@1094	1434 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1435 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1436 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1437 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1438 (ctx->isPost ? "true" : "false"),
adamc@682	1439 ctx->client->id,
adamc@682	1440 ctx->client->pass,
adamc@1094	1441 ctx->app->url_prefix,
adamc@1094	1442 ctx->app->timeout,
adamc@736	1443 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1444 sig,
adamc@736	1445 ctx->needs_sig ? "\";" : "");
adamc@679	1446 return r;
adamc@668	1447 }
adamc@667	1448 }
adamc@667	1449
adamc@574	1450 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1451 char r, s2;
adamc@574	1452
adam@1446	1453 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1454
adamc@666	1455 r = s2 = ctx->heap.front;
adamc@574	1456 *s2++ = '"';
adamc@574	1457
adamc@574	1458 for (; *s; s++) {
adam@1286	1459 unsigned char c = *s;
adamc@574	1460
adamc@574	1461 switch (c) {
adamc@574	1462 case '"':
adamc@574	1463 strcpy(s2, "\\\"");
adamc@574	1464 s2 += 2;
adamc@574	1465 break;
adamc@1027	1466 case '\'':
adamc@1027	1467 strcpy(s2, "\\047");
adamc@1027	1468 s2 += 4;
adamc@1027	1469 break;
adamc@574	1470 case '\\':
adamc@574	1471 strcpy(s2, "\\\\");
adamc@574	1472 s2 += 2;
adamc@574	1473 break;
adam@1457	1474 case '<':
adam@1457	1475 strcpy(s2, "\\074");
adam@1457	1476 s2 += 4;
adam@1457	1477 break;
adamc@574	1478 default:
adam@1286	1479 if (isprint((int)c) \|\| c >= 128)
adamc@574	1480 *s2++ = c;
adamc@574	1481 else {
adam@1429	1482 sprintf(s2, "\\%03o", c);
adamc@574	1483 s2 += 4;
adamc@574	1484 }
adamc@574	1485 }
adamc@574	1486 }
adamc@574	1487
adamc@574	1488 strcpy(s2, "\"");
adamc@910	1489 ctx->heap.front = s2 + 2;
adamc@574	1490 return r;
adamc@574	1491 }
adamc@574	1492
adam@1286	1493 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1494 unsigned char c = c1;
adamc@1025	1495 char r, s2;
adamc@1025	1496
adam@1446	1497 uw_check_heap(ctx, 7);
adamc@1025	1498
adamc@1025	1499 r = s2 = ctx->heap.front;
adamc@1025	1500 *s2++ = '"';
adamc@1025	1501
adamc@1025	1502 switch (c) {
adamc@1025	1503 case '"':
adamc@1025	1504 strcpy(s2, "\\\"");
adamc@1025	1505 s2 += 2;
adamc@1025	1506 break;
adamc@1027	1507 case '\'':
adamc@1027	1508 strcpy(s2, "\\047");
adamc@1027	1509 s2 += 4;
adamc@1027	1510 break;
adamc@1025	1511 case '\\':
adamc@1025	1512 strcpy(s2, "\\\\");
adamc@1025	1513 s2 += 2;
adamc@1025	1514 break;
adam@1457	1515 case '<':
adam@1457	1516 strcpy(s2, "\\074");
adam@1457	1517 s2 += 4;
adam@1457	1518 break;
adamc@1025	1519 default:
adam@1286	1520 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1521 *s2++ = c;
adamc@1025	1522 else {
adam@1429	1523 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1524 s2 += 4;
adamc@1025	1525 }
adamc@1025	1526 }
adamc@1025	1527
adamc@1025	1528 strcpy(s2, "\"");
adamc@1025	1529 ctx->heap.front = s2 + 2;
adamc@1025	1530 return r;
adamc@1025	1531 }
adamc@1025	1532
adamc@574	1533 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1534 char r, s2;
adamc@574	1535
adam@1446	1536 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1537
adamc@666	1538 r = s2 = ctx->script.front;
adamc@574	1539 *s2++ = '"';
adamc@574	1540
adamc@574	1541 for (; *s; s++) {
adam@1286	1542 unsigned char c = *s;
adamc@574	1543
adamc@574	1544 switch (c) {
adamc@577	1545 case '\'':
adamc@1027	1546 strcpy(s2, "\\");
adamc@574	1547 s2 += 2;
adamc@574	1548 break;
adamc@574	1549 case '\\':
adamc@574	1550 strcpy(s2, "\\\\");
adamc@574	1551 s2 += 2;
adamc@574	1552 break;
adam@1457	1553 case '<':
adam@1457	1554 strcpy(s2, "\\074");
adam@1457	1555 s2 += 4;
adam@1457	1556 break;
adamc@574	1557 default:
adam@1286	1558 if (isprint((int)c) \|\| c >= 128)
adamc@574	1559 *s2++ = c;
adamc@574	1560 else {
adam@1429	1561 sprintf(s2, "\\%03o", c);
adamc@574	1562 s2 += 4;
adamc@574	1563 }
adamc@574	1564 }
adamc@574	1565 }
adamc@574	1566
adamc@574	1567 strcpy(s2, "\"");
adamc@666	1568 ctx->script.front = s2 + 1;
adamc@574	1569 return r;
adamc@574	1570 }
adamc@574	1571
adamc@682	1572 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1573 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1574 return "null";
adamc@682	1575 else {
adamc@682	1576 int len;
adamc@682	1577 char *r;
adamc@682	1578
adamc@682	1579 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1580 r = ctx->heap.front;
adamc@682	1581 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1582 ctx->heap.front += len+1;
adamc@682	1583 return r;
adamc@682	1584 }
adamc@682	1585 }
adamc@682	1586
adam@1446	1587 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1588 int len;
adamc@577	1589 size_t s_len = strlen(s);
adamc@562	1590
adam@1446	1591 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1592 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1593 ctx->script.front += len;
adamc@666	1594 strcpy(ctx->script.front, s);
adamc@666	1595 ctx->script.front += s_len;
adamc@970	1596 strcpy(ctx->script.front, "));");
adamc@972	1597 ctx->script.front += 3;
adamc@562	1598
adam@1446	1599 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1600 return r;
adam@1446	1601 }
adam@1446	1602
adam@1446	1603 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1604 int len;
adamc@577	1605 size_t s_len = strlen(s);
adamc@577	1606
adam@1446	1607 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1608 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1609 ctx->script.front += len;
adamc@666	1610 strcpy(ctx->script.front, s);
adamc@666	1611 ctx->script.front += s_len;
adamc@970	1612 strcpy(ctx->script.front, "));");
adamc@972	1613 ctx->script.front += 3;
adamc@577	1614
adamc@577	1615 return uw_unit_v;
adamc@577	1616 }
adamc@577	1617
adamc@311	1618 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1619 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1620 }
adamc@117	1621
adamc@311	1622 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1623 *(ctx->page.front)++ = c;
adam@1413	1624 *ctx->page.front = 0;
adamc@117	1625 }
adamc@117	1626
adamc@311	1627 void uw_writec(uw_context ctx, char c) {
adam@1413	1628 uw_check(ctx, 2);
adamc@311	1629 uw_writec_unsafe(ctx, c);
adamc@117	1630 }
adamc@117	1631
adamc@311	1632 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1633 int len = strlen(s);
adamc@666	1634 memcpy(ctx->page.front, s, len);
adamc@666	1635 ctx->page.front += len;
adamc@117	1636 }
adamc@117	1637
adamc@311	1638 void uw_write(uw_context ctx, const char* s) {
adamc@311	1639 uw_check(ctx, strlen(s) + 1);
adamc@311	1640 uw_write_unsafe(ctx, s);
adamc@666	1641 *ctx->page.front = 0;
adamc@102	1642 }
adamc@106	1643
ziv@2204	1644 void uw_recordingStart(uw_context ctx) {
ziv@2204	1645 // TODO: remove following debug statement.
ziv@2204	1646 uw_write(ctx, "<!--Recording started here-->");
ziv@2204	1647 ctx->recording = ctx->page.front;
ziv@2204	1648 }
ziv@2204	1649
ziv@2204	1650 char *uw_recordingRead(uw_context ctx) {
ziv@2204	1651 char *recording = strdup(ctx->recording);
ziv@2204	1652 // TODO: remove following debug statement.
ziv@2204	1653 uw_write(ctx, "<!--Recording read here-->");
ziv@2204	1654 return recording;
ziv@2204	1655 }
ziv@2204	1656
adamc@311	1657 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1658 char *result;
adamc@136	1659 int len;
adamc@311	1660 uw_check_heap(ctx, INTS_MAX);
adamc@666	1661 result = ctx->heap.front;
adamc@276	1662 sprintf(result, "%lld%n", n, &len);
adamc@666	1663 ctx->heap.front += len+1;
adamc@136	1664 return result;
adamc@106	1665 }
adamc@106	1666
adamc@311	1667 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1668 char *result;
adamc@136	1669 int len;
adamc@311	1670 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1671 result = ctx->heap.front;
adam@1920	1672 sprintf(result, "%.16g%n", n, &len);
adamc@666	1673 ctx->heap.front += len+1;
adamc@136	1674 return result;
adamc@106	1675 }
adamc@106	1676
adamc@311	1677 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1678 int len = strlen(s);
adamc@136	1679 char result, p;
adamc@311	1680 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1681
adamc@666	1682 result = p = ctx->heap.front;
adamc@136	1683
adamc@136	1684 for (; *s; s++) {
adamc@1054	1685 unsigned char c = *s;
adamc@136	1686
adamc@136	1687 if (c == '"') {
adamc@136	1688 strcpy(p, """);
adamc@136	1689 p += 6;
adamc@136	1690 } else if (c == '&') {
adamc@136	1691 strcpy(p, "&");
adamc@136	1692 p += 5;
adamc@136	1693 }
adamc@1059	1694 else
adamc@136	1695 *p++ = c;
adamc@136	1696 }
adamc@136	1697
adamc@137	1698 *p++ = 0;
adamc@666	1699 ctx->heap.front = p;
adamc@136	1700 return result;
adamc@106	1701 }
adamc@106	1702
adamc@1011	1703 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1704 char result, p;
adamc@1011	1705 uw_check_heap(ctx, 7);
adamc@1011	1706
adamc@1011	1707 result = p = ctx->heap.front;
adamc@1011	1708
adamc@1011	1709 if (c == '"') {
adamc@1011	1710 strcpy(p, """);
adamc@1011	1711 p += 6;
adamc@1011	1712 } else if (c == '&') {
adamc@1011	1713 strcpy(p, "&");
adamc@1011	1714 p += 5;
adamc@1011	1715 }
adamc@1059	1716 else
adamc@1011	1717 *p++ = c;
adamc@1011	1718
adamc@1011	1719 *p++ = 0;
adamc@1011	1720 ctx->heap.front = p;
adamc@1011	1721 return result;
adamc@1011	1722 }
adamc@1011	1723
adamc@721	1724 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1725 return s;
adamc@721	1726 }
adamc@721	1727
adamc@311	1728 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1729 int len;
adamc@117	1730
adamc@666	1731 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1732 ctx->page.front += len;
adamc@106	1733 }
adamc@106	1734
adamc@428	1735 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1736 uw_check(ctx, INTS_MAX);
adamc@311	1737 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1738
adamc@428	1739 return uw_unit_v;
adamc@106	1740 }
adamc@106	1741
adamc@428	1742 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1743 int len;
adamc@117	1744
adamc@311	1745 uw_check(ctx, FLOATS_MAX);
adamc@666	1746 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1747 ctx->page.front += len;
adamc@428	1748
adamc@428	1749 return uw_unit_v;
adamc@117	1750 }
adamc@117	1751
adamc@428	1752 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1753 uw_check(ctx, strlen(s) * 6);
adamc@117	1754
adamc@106	1755 for (; *s; s++) {
adamc@1054	1756 unsigned char c = *s;
adamc@106	1757
adamc@106	1758 if (c == '"')
adamc@311	1759 uw_write_unsafe(ctx, """);
adamc@136	1760 else if (c == '&')
adamc@311	1761 uw_write_unsafe(ctx, "&");
adamc@1059	1762 else
adamc@311	1763 uw_writec_unsafe(ctx, c);
adamc@106	1764 }
adamc@428	1765
adamc@428	1766 return uw_unit_v;
adamc@106	1767 }
adamc@120	1768
adamc@1011	1769 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1770 uw_check(ctx, 6);
adamc@1011	1771
adamc@1011	1772 if (c == '"')
adamc@1011	1773 uw_write_unsafe(ctx, """);
adamc@1011	1774 else if (c == '&')
adamc@1011	1775 uw_write_unsafe(ctx, "&");
adamc@1059	1776 else
adamc@1011	1777 uw_writec_unsafe(ctx, c);
adamc@1011	1778
adamc@1011	1779 return uw_unit_v;
adamc@1011	1780 }
adamc@1011	1781
adamc@120	1782
adamc@311	1783 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1784 int len;
adamc@137	1785 char *r;
adamc@137	1786
adamc@311	1787 uw_check_heap(ctx, INTS_MAX);
adamc@666	1788 r = ctx->heap.front;
adamc@276	1789 sprintf(r, "%lld%n", n, &len);
adamc@666	1790 ctx->heap.front += len+1;
adamc@137	1791 return r;
adamc@120	1792 }
adamc@120	1793
adamc@682	1794 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1795 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1796 return "";
adamc@682	1797 else {
adamc@682	1798 int len;
adamc@682	1799 char *r;
adamc@679	1800
adamc@682	1801 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1802 r = ctx->heap.front;
adamc@682	1803 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1804 ctx->heap.front += len+1;
adamc@682	1805 return r;
adamc@682	1806 }
adamc@679	1807 }
adamc@679	1808
adamc@311	1809 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1810 int len;
adamc@137	1811 char *r;
adamc@137	1812
adamc@311	1813 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1814 r = ctx->heap.front;
adamc@137	1815 sprintf(r, "%g%n", n, &len);
adamc@666	1816 ctx->heap.front += len+1;
adamc@137	1817 return r;
adamc@120	1818 }
adamc@120	1819
adamc@311	1820 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1821 char r, p;
adamc@137	1822
adamc@925	1823 if (s[0] == '\0')
adamc@925	1824 return "_";
adamc@925	1825
adamc@925	1826 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1827
adamc@925	1828 r = p = ctx->heap.front;
adamc@925	1829 if (s[0] == '_')
adamc@925	1830 *p++ = '_';
adamc@925	1831
adamc@925	1832 for (; *s; s++) {
adamc@1087	1833 unsigned char c = *s;
adamc@137	1834
adamc@137	1835 if (c == ' ')
adamc@137	1836 *p++ = '+';
adamc@137	1837 else if (isalnum(c))
adamc@137	1838 *p++ = c;
adamc@137	1839 else {
adamc@1259	1840 sprintf(p, ".%02X", c);
adamc@137	1841 p += 3;
adamc@137	1842 }
adamc@137	1843 }
adamc@137	1844
adamc@137	1845 *p++ = 0;
adamc@666	1846 ctx->heap.front = p;
adamc@137	1847 return r;
adamc@120	1848 }
adamc@120	1849
adamc@311	1850 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1851 if (b == uw_Basis_False)
adamc@186	1852 return "0";
adamc@186	1853 else
adamc@186	1854 return "1";
adamc@186	1855 }
adamc@186	1856
adam@1620	1857 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1858 char *r;
adam@1620	1859 int len;
adam@1620	1860 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1861 r = ctx->heap.front;
adam@1620	1862 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1863 ctx->heap.front += len+1;
adam@1620	1864 return r;
adam@1620	1865 }
adam@1620	1866
adamc@311	1867 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1868 int len;
adamc@120	1869
adamc@666	1870 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1871 ctx->page.front += len;
adamc@120	1872 }
adamc@120	1873
adamc@428	1874 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1875 uw_check(ctx, INTS_MAX);
adamc@311	1876 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1877
adamc@428	1878 return uw_unit_v;
adamc@120	1879 }
adamc@120	1880
adamc@682	1881 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1882 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1883 int len;
phurst@1981	1884
adamc@682	1885 uw_check(ctx, INTS_MAX + 1);
adamc@682	1886 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1887 ctx->page.front += len;
adamc@682	1888 }
phurst@1981	1889
adamc@679	1890 return uw_unit_v;
adamc@679	1891 }
adamc@679	1892
adamc@428	1893 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1894 int len;
adamc@120	1895
adamc@311	1896 uw_check(ctx, FLOATS_MAX);
adamc@666	1897 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1898 ctx->page.front += len;
adamc@428	1899
adamc@428	1900 return uw_unit_v;
adamc@120	1901 }
adamc@120	1902
adamc@488	1903 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1904 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1905 }
adamc@488	1906
adam@1404	1907 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1908 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1909 }
adam@1404	1910
adamc@428	1911 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1912 if (s[0] == '\0') {
adamc@925	1913 uw_check(ctx, 1);
adamc@925	1914 uw_writec_unsafe(ctx, '_');
adamc@925	1915 return uw_unit_v;
adamc@925	1916 }
adamc@925	1917
adamc@925	1918 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1919
adamc@925	1920 if (s[0] == '_')
adamc@925	1921 uw_writec_unsafe(ctx, '_');
adamc@120	1922
adamc@120	1923 for (; *s; s++) {
adamc@1087	1924 unsigned char c = *s;
adamc@120	1925
adamc@120	1926 if (c == ' ')
adamc@311	1927 uw_writec_unsafe(ctx, '+');
adamc@120	1928 else if (isalnum(c))
adamc@311	1929 uw_writec_unsafe(ctx, c);
adamc@120	1930 else {
adamc@1259	1931 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1932 ctx->page.front += 3;
adamc@120	1933 }
adamc@120	1934 }
adamc@428	1935
adamc@428	1936 return uw_unit_v;
adamc@120	1937 }
adamc@120	1938
adamc@428	1939 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1940 if (b == uw_Basis_False)
adamc@311	1941 uw_writec(ctx, '0');
adamc@186	1942 else
adamc@311	1943 uw_writec(ctx, '1');
adamc@428	1944
adamc@428	1945 return uw_unit_v;
adamc@186	1946 }
adamc@186	1947
adam@1620	1948 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	1949 int len;
phurst@1981	1950
adam@1620	1951 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	1952 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1953 ctx->page.front += len;
phurst@1981	1954
adam@1620	1955 return uw_unit_v;
adam@1620	1956 }
adam@1620	1957
adamc@120	1958
adamc@311	1959 static char uw_unurlify_advance(char s) {
adamc@144	1960 char *new_s = strchr(s, '/');
adamc@120	1961
adamc@120	1962 if (new_s)
adamc@120	1963 *new_s++ = 0;
adamc@120	1964 else
adamc@144	1965 new_s = strchr(s, 0);
adamc@144	1966
adamc@144	1967 return new_s;
adamc@144	1968 }
adamc@144	1969
adamc@311	1970 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1971 char new_s = uw_unurlify_advance(s);
adamc@311	1972 uw_Basis_int r;
adamc@120	1973
adamc@276	1974 r = atoll(*s);
adamc@120	1975 *s = new_s;
adamc@120	1976 return r;
adamc@120	1977 }
adamc@120	1978
adamc@311	1979 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1980 char new_s = uw_unurlify_advance(s);
adamc@311	1981 uw_Basis_float r;
adamc@120	1982
adamc@120	1983 r = atof(*s);
adamc@120	1984 *s = new_s;
adamc@120	1985 return r;
adamc@120	1986 }
adamc@120	1987
adamc@488	1988 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	1989 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	1990 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	1991 return r;
adamc@488	1992 }
adamc@488	1993
adamc@1023	1994 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1995 char s1, s2 = s;
adamc@144	1996 int n;
adamc@136	1997
adamc@1023	1998 if (!fromClient) {
adamc@1023	1999 if (*s2 == '_')
adamc@1023	2000 ++s2;
adamc@1259	2001 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	2002 s2 += 3;
adamc@1023	2003 }
adamc@925	2004
adamc@927	2005 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	2006 unsigned char c = *s2;
adamc@136	2007
adamc@136	2008 switch (c) {
adamc@136	2009 case '+':
adamc@136	2010 *s1 = ' ';
adamc@136	2011 break;
adamc@136	2012 case '%':
adamc@169	2013 if (s2[1] == 0)
adamc@311	2014 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	2015 if (s2[2] == 0)
adamc@311	2016 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	2017 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2018 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	2019 *s1 = n;
adamc@136	2020 s2 += 2;
adamc@136	2021 break;
adamc@1259	2022 case '.':
adamc@1259	2023 if (!fromClient) {
adamc@1259	2024 if (s2[1] == 0)
adamc@1259	2025 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	2026 if (s2[2] == 0)
adamc@1259	2027 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	2028 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2029 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	2030 *s1 = n;
adamc@1259	2031 s2 += 2;
adamc@1259	2032 break;
adamc@1259	2033 }
adamc@136	2034 default:
adamc@136	2035 *s1 = c;
adamc@136	2036 }
adamc@136	2037 }
adamc@136	2038 *s1++ = 0;
adamc@144	2039 return s1;
adamc@144	2040 }
adamc@144	2041
adamc@311	2042 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	2043 char new_s = uw_unurlify_advance(s);
adamc@311	2044 uw_Basis_bool r;
phurst@1981	2045
adamc@186	2046 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2047 r = uw_Basis_False;
adamc@186	2048 else
adamc@311	2049 r = uw_Basis_True;
adamc@186	2050
adamc@186	2051 *s = new_s;
adamc@186	2052 return r;
adamc@186	2053 }
adamc@186	2054
adamc@311	2055 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2056 char new_s = uw_unurlify_advance(s);
adamc@1134	2057 char *r;
adamc@1134	2058 int len;
adamc@144	2059
adamc@200	2060 len = strlen(*s);
adamc@311	2061 uw_check_heap(ctx, len + 1);
adamc@144	2062
adamc@666	2063 r = ctx->heap.front;
adamc@1023	2064 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2065 *s = new_s;
adamc@1023	2066 return r;
adamc@1023	2067 }
adamc@1023	2068
adamc@1109	2069 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2070 s = uw_unurlify_advance(s);
adamc@1109	2071 return uw_unit_v;
adamc@1109	2072 }
adamc@1109	2073
adamc@1023	2074 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2075 char new_s = uw_unurlify_advance(s);
adamc@1134	2076 char *r;
adamc@1134	2077 int len;
adamc@1023	2078
adamc@1023	2079 len = strlen(*s);
adamc@1023	2080 uw_check_heap(ctx, len + 1);
adamc@1023	2081
adamc@1023	2082 r = ctx->heap.front;
adamc@1023	2083 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2084 *s = new_s;
adamc@136	2085 return r;
adamc@120	2086 }
adamc@135	2087
adamc@135	2088
adamc@311	2089 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2090 int len;
adamc@286	2091 char *r;
adamc@286	2092
adamc@311	2093 uw_check_heap(ctx, INTS_MAX);
adamc@666	2094 r = ctx->heap.front;
adamc@286	2095 sprintf(r, "%lld%n", n, &len);
adamc@666	2096 ctx->heap.front += len+1;
adamc@286	2097 return r;
adamc@286	2098 }
adamc@286	2099
adamc@428	2100 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2101 int len;
adamc@286	2102
adamc@311	2103 uw_check(ctx, INTS_MAX);
adamc@666	2104 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2105 ctx->page.front += len;
phurst@1981	2106
adamc@428	2107 return uw_unit_v;
adamc@286	2108 }
adamc@286	2109
adam@1358	2110 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2111 unsigned int n = ch;
adam@1358	2112 int len;
adam@1358	2113 char *r;
adam@1358	2114
adam@1358	2115 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2116 r = ctx->heap.front;
adam@1358	2117 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2118 ctx->heap.front += len+1;
adam@1358	2119 return r;
adam@1358	2120 }
adam@1358	2121
adam@1358	2122 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2123 unsigned int n = ch;
adam@1358	2124 int len;
adam@1358	2125
adam@1358	2126 uw_check(ctx, INTS_MAX+3);
adam@1358	2127 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2128 ctx->page.front += len;
adam@1358	2129 return uw_unit_v;
adam@1358	2130 }
adam@1358	2131
adamc@311	2132 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2133 int len;
adamc@286	2134 char *r;
adamc@286	2135
adamc@311	2136 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2137 r = ctx->heap.front;
adamc@286	2138 sprintf(r, "%g%n", n, &len);
adamc@666	2139 ctx->heap.front += len+1;
adamc@286	2140 return r;
adamc@286	2141 }
adamc@286	2142
adamc@428	2143 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2144 int len;
adamc@286	2145
adamc@311	2146 uw_check(ctx, FLOATS_MAX);
adamc@666	2147 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2148 ctx->page.front += len;
adamc@428	2149
adamc@428	2150 return uw_unit_v;
adamc@286	2151 }
adamc@286	2152
adam@1365	2153 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2154 int len;
adam@1360	2155 char *r;
adam@1360	2156
adam@1360	2157 uw_check_heap(ctx, INTS_MAX);
adam@1360	2158 r = ctx->heap.front;
adamc@1377	2159 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2160 ctx->heap.front += len+1;
adam@1360	2161 return r;
adam@1360	2162 }
adam@1360	2163
adam@1365	2164 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2165 int len;
adam@1360	2166
adam@1360	2167 uw_check(ctx, INTS_MAX);
adam@1360	2168 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2169 ctx->page.front += len;
phurst@1981	2170
adam@1360	2171 return uw_unit_v;
adam@1360	2172 }
adam@1360	2173
adam@1444	2174 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2175 char r, s2;
adamc@137	2176
adamc@311	2177 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2178
adamc@666	2179 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2180 unsigned char c = *s;
adamc@137	2181
adamc@137	2182 switch (c) {
adamc@137	2183 case '<':
adamc@137	2184 strcpy(s2, "<");
adamc@137	2185 s2 += 4;
adamc@137	2186 break;
adamc@137	2187 case '&':
adamc@137	2188 strcpy(s2, "&");
adamc@137	2189 s2 += 5;
adamc@137	2190 break;
adamc@137	2191 default:
adamc@1059	2192 *s2++ = c;
adamc@137	2193 }
adamc@137	2194 }
adamc@137	2195
adamc@137	2196 *s2++ = 0;
adamc@666	2197 ctx->heap.front = s2;
adamc@137	2198 return r;
adamc@135	2199 }
adamc@135	2200
adamc@428	2201 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2202 uw_check(ctx, strlen(s) * 6);
adamc@135	2203
adamc@135	2204 for (; *s; s++) {
adamc@1054	2205 unsigned char c = *s;
adamc@135	2206
adamc@135	2207 switch (c) {
adamc@135	2208 case '<':
adamc@311	2209 uw_write_unsafe(ctx, "<");
adamc@135	2210 break;
adamc@135	2211 case '&':
adamc@311	2212 uw_write_unsafe(ctx, "&");
adamc@135	2213 break;
adamc@135	2214 default:
adamc@1059	2215 uw_writec_unsafe(ctx, c);
adamc@135	2216 }
adamc@135	2217 }
adamc@428	2218
adamc@428	2219 return uw_unit_v;
adamc@135	2220 }
adamc@180	2221
adamc@311	2222 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2223 if (b == uw_Basis_False)
adamc@286	2224 return "False";
adamc@286	2225 else
adamc@286	2226 return "True";
adamc@286	2227 }
adamc@286	2228
adamc@428	2229 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2230 if (b == uw_Basis_False) {
adamc@311	2231 uw_check(ctx, 6);
adamc@666	2232 strcpy(ctx->page.front, "False");
adamc@666	2233 ctx->page.front += 5;
adamc@286	2234 } else {
adamc@311	2235 uw_check(ctx, 5);
adamc@666	2236 strcpy(ctx->page.front, "True");
adamc@666	2237 ctx->page.front += 4;
adamc@286	2238 }
adamc@428	2239
adamc@428	2240 return uw_unit_v;
adamc@286	2241 }
adamc@286	2242
adamc@436	2243 #define TIME_FMT "%x %X"
adamc@438	2244 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2245 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2246
adam@1629	2247 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2248
adamc@436	2249 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2250 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2251 }
adamc@436	2252
adamc@436	2253 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2254 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2255 }
adamc@436	2256
adam@1446	2257 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2258 int len;
adam@1446	2259 char *r;
adam@1446	2260
adam@1446	2261 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2262 r = ctx->heap.front;
adam@1446	2263 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2264 ctx->heap.front += len+1;
adam@1446	2265 return r;
adam@1446	2266 }
adam@1446	2267
adam@1446	2268 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2269 int len;
adam@1446	2270
adam@1446	2271 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2272 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2273 ctx->page.front += len;
phurst@1981	2274
adam@1446	2275 return uw_unit_v;
adam@1446	2276 }
adam@1446	2277
adamc@821	2278 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2279 while (n >= 0) {
adam@1388	2280 if (*s == 0)
adam@1388	2281 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2282
adam@1388	2283 if (n == 0)
adam@1388	2284 return *s;
adam@1388	2285
adam@1388	2286 --n;
adam@1388	2287 ++s;
adam@1388	2288 }
adam@1388	2289
adam@1388	2290 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2291 }
adamc@821	2292
adamc@821	2293 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2294 while (n >= 0) {
adam@1388	2295 if (*s == 0 \|\| n == 0)
adam@1388	2296 return s;
adam@1388	2297
adam@1388	2298 --n;
adam@1388	2299 ++s;
adam@1388	2300 }
adam@1388	2301
adam@1388	2302 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2303 }
adamc@821	2304
adamc@828	2305 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2306 return strlen(s);
adamc@828	2307 }
adamc@828	2308
adam@1388	2309 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2310 while (n > 0) {
adam@1388	2311 if (*s == 0)
adam@1388	2312 return uw_Basis_False;
adam@1388	2313
adam@1388	2314 --n;
adam@1388	2315 ++s;
adam@1388	2316 }
adam@1388	2317
adam@1388	2318 return uw_Basis_True;
adam@1388	2319 }
adam@1388	2320
adamc@829	2321 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2322 return strchr(s, ch);
adamc@829	2323 }
adamc@829	2324
adamc@831	2325 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2326 return strcspn(s, chs);
adamc@831	2327 }
adamc@831	2328
adamc@829	2329 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2330 uw_Basis_string r = strchr(s, ch);
adamc@829	2331 if (r == NULL)
adamc@829	2332 return NULL;
adamc@829	2333 else {
adamc@829	2334 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2335 *nr = r - s;
adamc@829	2336 return nr;
adamc@829	2337 }
adamc@829	2338 }
adamc@829	2339
adam@1390	2340 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2341 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2342 if (r == NULL)
adam@1390	2343 return NULL;
adam@1390	2344 else {
adam@1390	2345 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2346 *nr = r - haystack;
adam@1390	2347 return nr;
adam@1390	2348 }
adam@1390	2349 }
adam@1390	2350
adamc@311	2351 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2352 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2353 char *s;
adamc@180	2354
adamc@311	2355 uw_check_heap(ctx, len);
adamc@180	2356
adamc@666	2357 s = ctx->heap.front;
adamc@180	2358
adamc@180	2359 strcpy(s, s1);
adamc@180	2360 strcat(s, s2);
adamc@666	2361 ctx->heap.front += len;
adamc@180	2362
adamc@180	2363 return s;
adamc@180	2364 }
adamc@278	2365
adamc@829	2366 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2367 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2368
adamc@829	2369 if (start < 0)
adamc@829	2370 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2371 if (len < 0)
adamc@829	2372 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2373 if (start + len > full_len)
adamc@829	2374 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2375
adamc@829	2376 if (start + len == full_len)
adamc@829	2377 return &s[start];
adamc@829	2378 else {
adamc@829	2379 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2380 memcpy(r, s+start, len);
adamc@829	2381 r[len] = 0;
adamc@829	2382 return r;
adamc@829	2383 }
phurst@1981	2384
adamc@829	2385 }
adamc@829	2386
adamc@1023	2387 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2388 char *r;
adamc@1023	2389
adamc@1023	2390 uw_check_heap(ctx, 2);
adamc@1023	2391 r = ctx->heap.front;
adamc@1023	2392 r[0] = ch;
adamc@1023	2393 r[1] = 0;
adamc@1023	2394
adamc@1023	2395 ctx->heap.front += 2;
adamc@1023	2396
adamc@1023	2397 return r;
adamc@1023	2398 }
adamc@1023	2399
adamc@737	2400 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2401 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2402 char *s;
adamc@278	2403
adamc@311	2404 uw_check_heap(ctx, len);
adamc@278	2405
adamc@666	2406 s = ctx->heap.front;
adamc@278	2407
adamc@278	2408 strcpy(s, s1);
adamc@666	2409 ctx->heap.front += len;
adamc@278	2410
adamc@278	2411 return s;
adamc@278	2412 }
adamc@280	2413
adam@1295	2414 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2415 if (ctx->error_message[0]) {
adam@1295	2416 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2417 ctx->error_message[0] = 0;
adam@1295	2418 return s;
adam@1295	2419 } else
adam@1295	2420 return NULL;
adam@1295	2421 }
adam@1295	2422
adamc@737	2423 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2424 if (s1)
adamc@737	2425 return uw_strdup(ctx, s1);
adamc@493	2426 else
adamc@493	2427 return NULL;
adamc@493	2428 }
adamc@493	2429
adamc@742	2430 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2431 char *r = uw_malloc(ctx, len);
adamc@742	2432 memcpy(r, p, len);
adamc@742	2433 return r;
adamc@742	2434 }
adamc@280	2435
adamc@879	2436 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2437
adamc@311	2438 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2439 int len;
adamc@281	2440 char *r;
adamc@281	2441
adamc@311	2442 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2443 r = ctx->heap.front;
adamc@879	2444 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2445 ctx->heap.front += len+1;
adamc@281	2446 return r;
adamc@281	2447 }
adamc@281	2448
adamc@467	2449 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2450 if (n == NULL)
adamc@467	2451 return "NULL";
adamc@467	2452 else
adamc@467	2453 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2454 }
adamc@467	2455
adam@1920	2456 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879	2457
adamc@311	2458 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2459 int len;
adamc@281	2460 char *r;
adamc@281	2461
adamc@311	2462 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2463 r = ctx->heap.front;
adamc@879	2464 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2465 ctx->heap.front += len+1;
adamc@281	2466 return r;
adamc@281	2467 }
adamc@281	2468
adamc@467	2469 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2470 if (n == NULL)
adamc@467	2471 return "NULL";
adamc@467	2472 else
adamc@467	2473 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2474 }
adamc@467	2475
adam@1834	2476 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2477 char *uw_sqlsuffixString = "::text";
adamc@1011	2478 char *uw_sqlsuffixChar = "::char";
adamc@281	2479
adamc@311	2480 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2481 char r, s2;
adamc@280	2482
adamc@879	2483 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2484
adamc@666	2485 r = s2 = ctx->heap.front;
adamc@879	2486 if (uw_Estrings)
adamc@879	2487 *s2++ = 'E';
adamc@280	2488 *s2++ = '\'';
adamc@280	2489
adamc@280	2490 for (; *s; s++) {
adamc@280	2491 char c = *s;
adamc@280	2492
adamc@280	2493 switch (c) {
adamc@280	2494 case '\'':
adamc@885	2495 if (uw_Estrings)
adamc@885	2496 strcpy(s2, "\\'");
adamc@885	2497 else
adamc@885	2498 strcpy(s2, "''");
adamc@280	2499 s2 += 2;
adamc@280	2500 break;
adamc@280	2501 case '\\':
adamc@885	2502 if (uw_Estrings) {
adamc@885	2503 strcpy(s2, "\\\\");
adamc@885	2504 s2 += 2;
adamc@885	2505 } else
adamc@885	2506 *s2++ = '\\';
adamc@280	2507 break;
adamc@280	2508 default:
adamc@1150	2509 if (isprint((int)c))
adamc@280	2510 *s2++ = c;
adamc@879	2511 else if (uw_Estrings) {
adam@1857	2512 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2513 s2 += 4;
adamc@280	2514 }
adamc@879	2515 else
adam@1689	2516 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2517 }
adamc@280	2518 }
adamc@280	2519
adamc@879	2520 *s2++ = '\'';
adamc@879	2521 strcpy(s2, uw_sqlsuffixString);
adamc@879	2522 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2523 return r;
adamc@280	2524 }
adamc@281	2525
adamc@1011	2526 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2527 char r, s2;
adamc@1011	2528
adamc@1011	2529 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2530
adamc@1011	2531 r = s2 = ctx->heap.front;
adamc@1011	2532 if (uw_Estrings)
adamc@1011	2533 *s2++ = 'E';
adamc@1011	2534 *s2++ = '\'';
adamc@1011	2535
adamc@1011	2536 switch (c) {
adamc@1011	2537 case '\'':
adamc@1011	2538 if (uw_Estrings)
adamc@1011	2539 strcpy(s2, "\\'");
adamc@1011	2540 else
adamc@1011	2541 strcpy(s2, "''");
adamc@1011	2542 s2 += 2;
adamc@1011	2543 break;
adamc@1011	2544 case '\\':
adamc@1011	2545 if (uw_Estrings) {
adamc@1011	2546 strcpy(s2, "\\\\");
adamc@1011	2547 s2 += 2;
adamc@1011	2548 } else
adamc@1011	2549 *s2++ = '\\';
adamc@1011	2550 break;
adamc@1011	2551 default:
adamc@1150	2552 if (isprint((int)c))
adamc@1011	2553 *s2++ = c;
adamc@1011	2554 else if (uw_Estrings) {
adam@1857	2555 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2556 s2 += 4;
adamc@1011	2557 }
adamc@1011	2558 else
adamc@1011	2559 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2560 }
adamc@1011	2561
adamc@1011	2562 *s2++ = '\'';
adamc@1011	2563 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2564 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2565 return r;
adamc@1011	2566 }
adamc@1011	2567
adamc@879	2568 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2569
adam@1867	2570 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2571 char r, s2;
adamc@737	2572 size_t i;
adamc@737	2573
adam@1867	2574 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2575
adamc@737	2576 r = s2 = ctx->heap.front;
adamc@879	2577 if (uw_Estrings)
adamc@879	2578 *s2++ = 'E';
adam@1867	2579 else
adam@1867	2580 *s2++ = 'X';
adamc@737	2581 *s2++ = '\'';
adamc@737	2582
adamc@737	2583 for (i = 0; i < b.size; ++i) {
adam@1867	2584 unsigned char c = b.data[i];
adam@1867	2585
adam@1867	2586 if (uw_Estrings) {
adam@1867	2587 switch (c) {
adam@1867	2588 case '\'':
adamc@885	2589 strcpy(s2, "\\'");
adam@1867	2590 s2 += 2;
adam@1867	2591 break;
adam@1867	2592 case '\\':
adamc@885	2593 strcpy(s2, "\\\\\\\\");
adamc@885	2594 s2 += 4;
adam@1867	2595 break;
adam@1867	2596 default:
adam@1867	2597 if (isprint((int)c))
adam@1867	2598 *s2++ = c;
adam@1867	2599 else {
adam@1867	2600 sprintf(s2, "\\\\%03o", c);
adam@1867	2601 s2 += 5;
adam@1867	2602 }
adamc@737	2603 }
adam@1867	2604 } else {
adam@1867	2605 sprintf(s2, "%02X", c);
adam@1867	2606 s2 += 2;
adamc@737	2607 }
phurst@1981	2608 }
adamc@737	2609
adamc@879	2610 *s2++ = '\'';
adamc@879	2611 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2612 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2613 return r;
adamc@737	2614 }
adamc@737	2615
adamc@682	2616 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2617 int len;
adamc@682	2618 char *r;
adamc@682	2619 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2620
adamc@682	2621 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2622 r = ctx->heap.front;
adamc@879	2623 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2624 ctx->heap.front += len+1;
adamc@682	2625 return r;
adamc@682	2626 }
adamc@682	2627
adamc@682	2628 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2629 int len;
adamc@682	2630 char *r;
adamc@682	2631 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2632
adamc@682	2633 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2634 r = ctx->heap.front;
adamc@682	2635 sprintf(r, "%lld%n", combo, &len);
adamc@682	2636 ctx->heap.front += len+1;
adamc@682	2637 return r;
adamc@682	2638 }
adamc@682	2639
adamc@879	2640 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2641
adamc@682	2642 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2643 int len;
adamc@682	2644 char *r;
adamc@682	2645
adamc@682	2646 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2647 r = ctx->heap.front;
adamc@879	2648 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2649 ctx->heap.front += len+1;
adamc@682	2650 return r;
adamc@682	2651 }
adamc@682	2652
adamc@682	2653 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2654 int len;
adamc@682	2655 char *r;
adamc@682	2656
adamc@682	2657 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2658 r = ctx->heap.front;
adamc@682	2659 sprintf(r, "%u%n", cli, &len);
adamc@682	2660 ctx->heap.front += len+1;
adamc@682	2661 return r;
adamc@682	2662 }
adamc@682	2663
adamc@467	2664 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2665 if (s == NULL)
adamc@467	2666 return "NULL";
adamc@467	2667 else
adamc@467	2668 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2669 }
adamc@467	2670
adamc@311	2671 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2672 if (b == uw_Basis_False)
adamc@281	2673 return "FALSE";
adamc@281	2674 else
adamc@281	2675 return "TRUE";
adamc@281	2676 }
adamc@282	2677
adamc@467	2678 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2679 if (b == NULL)
adamc@467	2680 return "NULL";
adamc@467	2681 else
adamc@467	2682 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2683 }
adamc@467	2684
adamc@439	2685 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2686 size_t len;
adamc@682	2687 char r, s;
adam@1392	2688 struct tm stm = {};
adam@1392	2689 stm.tm_isdst = -1;
adamc@682	2690
adam@1365	2691 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2692 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2693 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2694 if (uw_sql_type_annotations) {
adam@1834	2695 if (t.microseconds) {
adam@1834	2696 r = uw_malloc(ctx, len + 21);
adam@1834	2697 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2698 } else {
adam@1834	2699 r = uw_malloc(ctx, len + 14);
adam@1834	2700 sprintf(r, "'%s'::timestamp", s);
adam@1834	2701 }
adam@1367	2702 } else {
adam@1834	2703 r = uw_malloc(ctx, len + 3);
adam@1834	2704 sprintf(r, "'%s'", s);
adam@1367	2705 }
adamc@682	2706 return r;
adamc@682	2707 } else
adamc@682	2708 return "<Invalid time>";
adamc@682	2709 }
adamc@682	2710
adamc@682	2711 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2712 size_t len;
adamc@439	2713 char *r;
adam@1392	2714 struct tm stm = {};
adam@1392	2715 stm.tm_isdst = -1;
adamc@439	2716
adam@1365	2717 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2718 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2719 r = ctx->heap.front;
adamc@439	2720 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2721 ctx->heap.front += len+1;
adamc@439	2722 return r;
adamc@439	2723 } else
adamc@439	2724 return "<Invalid time>";
adamc@439	2725 }
adamc@439	2726
adam@1364	2727 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2728 size_t len;
adam@1364	2729 char *r;
adam@1392	2730 struct tm stm = {};
adam@1392	2731 stm.tm_isdst = -1;
adam@1364	2732
adam@1365	2733 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2734 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2735 r = ctx->heap.front;
adam@1365	2736 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2737 ctx->heap.front += len;
adam@1365	2738 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2739 ctx->heap.front += 8;
adam@1364	2740 return r;
adam@1364	2741 } else
adam@1364	2742 return "<Invalid time>";
adam@1364	2743 }
adam@1364	2744
adamc@467	2745 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2746 if (t == NULL)
adamc@467	2747 return "NULL";
adamc@467	2748 else
adamc@467	2749 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2750 }
adamc@467	2751
adamc@311	2752 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2753 static uw_Basis_int true = 1;
adamc@311	2754 static uw_Basis_int false = 0;
adamc@282	2755
adamc@311	2756 if (b == uw_Basis_False)
adamc@282	2757 return (char *)&false;
adamc@282	2758 else
adamc@282	2759 return (char *)&true;
adamc@282	2760 }
adamc@284	2761
adamc@311	2762 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2763 int len;
adamc@284	2764 char *r;
adamc@284	2765
adamc@311	2766 uw_check_heap(ctx, INTS_MAX);
adamc@666	2767 r = ctx->heap.front;
adamc@284	2768 sprintf(r, "%lld%n", n, &len);
adamc@666	2769 ctx->heap.front += len+1;
adamc@284	2770 return r;
adamc@284	2771 }
adamc@285	2772
adamc@311	2773 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2774 int len;
adamc@285	2775 char *r;
adamc@285	2776
adamc@311	2777 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2778 r = ctx->heap.front;
adamc@285	2779 sprintf(r, "%g%n", n, &len);
adamc@666	2780 ctx->heap.front += len+1;
adamc@285	2781 return r;
adamc@285	2782 }
adamc@285	2783
adamc@821	2784 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2785 char *r = uw_malloc(ctx, 2);
adamc@821	2786 r[0] = ch;
adamc@821	2787 r[1] = 0;
adamc@821	2788 return r;
adamc@821	2789 }
adamc@821	2790
adamc@311	2791 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2792 if (b == uw_Basis_False)
adamc@285	2793 return "False";
adamc@285	2794 else
adamc@285	2795 return "True";
adamc@285	2796 }
adamc@288	2797
adam@1359	2798 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2799 size_t len;
adam@1352	2800 char *r;
adam@1392	2801 struct tm stm = {};
adam@1392	2802 stm.tm_isdst = -1;
adam@1352	2803
adam@1365	2804 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2805 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2806 r = ctx->heap.front;
adam@1352	2807 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2808 ctx->heap.front += len+1;
adam@1352	2809 return r;
adam@1352	2810 } else
adam@1352	2811 return "<Invalid time>";
adam@1352	2812 }
adam@1352	2813
adam@1629	2814 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2815 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2816 }
adam@1629	2817
adamc@311	2818 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2819 char *endptr;
adamc@311	2820 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2821
adamc@288	2822 if (s != '\0' && endptr == '\0') {
adamc@311	2823 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2824 *r = n;
adamc@288	2825 return r;
adamc@288	2826 } else
adamc@288	2827 return NULL;
adamc@288	2828 }
adamc@289	2829
adamc@311	2830 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2831 char *endptr;
adamc@311	2832 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2833
adamc@289	2834 if (s != '\0' && endptr == '\0') {
adamc@311	2835 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2836 *r = n;
adamc@289	2837 return r;
adamc@289	2838 } else
adamc@289	2839 return NULL;
adamc@289	2840 }
adamc@289	2841
adamc@821	2842 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2843 if (s[0] == 0) {
adamc@821	2844 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2845 r[0] = 0;
adamc@821	2846 return r;
adamc@821	2847 } else if (s[1] != 0)
adamc@821	2848 return NULL;
adamc@821	2849 else {
adamc@821	2850 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2851 r[0] = s[0];
adamc@821	2852 return r;
adamc@821	2853 }
adamc@821	2854 }
adamc@821	2855
adamc@311	2856 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2857 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2858 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2859
adamc@289	2860 if (!strcasecmp (s, "True"))
adamc@289	2861 return &true;
adamc@289	2862 else if (!strcasecmp (s, "False"))
adamc@289	2863 return &false;
adamc@289	2864 else
adamc@289	2865 return NULL;
adamc@289	2866 }
adamc@292	2867
adamc@436	2868 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2869 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2870 struct tm stm = {};
adam@1392	2871 stm.tm_isdst = -1;
adamc@436	2872
adamc@439	2873 if (dot) {
adamc@439	2874 *dot = 0;
adamc@439	2875 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2876 *dot = '.';
adamc@439	2877 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2878 r->seconds = mktime(&stm);
adam@1365	2879 r->microseconds = 0;
adamc@439	2880 return r;
adamc@439	2881 }
adamc@439	2882 else {
adamc@439	2883 *dot = '.';
adamc@439	2884 return NULL;
adamc@439	2885 }
adamc@436	2886 }
adamc@439	2887 else {
adamc@439	2888 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2889 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2890 r->seconds = mktime(&stm);
adam@1365	2891 r->microseconds = 0;
adamc@439	2892 return r;
adamc@439	2893 }
adamc@439	2894 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2895 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2896 r->seconds = mktime(&stm);
adam@1365	2897 r->microseconds = 0;
adamc@439	2898 return r;
adam@1632	2899 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2900 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2901 r->seconds = mktime(&stm);
adam@1632	2902 r->microseconds = 0;
adam@1632	2903 return r;
adamc@439	2904 }
adamc@439	2905 else
adamc@439	2906 return NULL;
adamc@439	2907 }
adamc@436	2908 }
adamc@436	2909
adam@1352	2910 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2911 char *end = strchr(s, 0);
adam@1374	2912 struct tm stm = {};
adam@1392	2913 stm.tm_isdst = -1;
adam@1352	2914
adam@1352	2915 if (strptime(s, fmt, &stm) == end) {
adam@1352	2916 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2917 r->seconds = mktime(&stm);
adam@1365	2918 r->microseconds = 0;
adam@1352	2919 return r;
adam@1352	2920 }
adam@1352	2921 else
adam@1352	2922 return NULL;
adam@1352	2923 }
adam@1352	2924
adamc@311	2925 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2926 char *endptr;
adamc@311	2927 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2928
adamc@292	2929 if (s != '\0' && endptr == '\0')
adamc@292	2930 return n;
adamc@292	2931 else
adam@1444	2932 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2933 }
adamc@293	2934
adamc@682	2935 #include <errno.h>
adamc@682	2936
adamc@678	2937 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2938 unsigned long long n;
adamc@682	2939
adamc@682	2940 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2941 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	2942 else {
adamc@682	2943 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2944 return ch;
adamc@682	2945 }
adamc@682	2946 }
adamc@682	2947
adamc@682	2948 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2949 char *endptr;
adamc@682	2950 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2951
adamc@678	2952 if (s != '\0' && endptr == '\0')
adamc@678	2953 return n;
adamc@678	2954 else
adam@1444	2955 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	2956 }
adamc@678	2957
adamc@311	2958 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2959 char *endptr;
adamc@311	2960 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2961
adamc@293	2962 if (s != '\0' && endptr == '\0')
adamc@293	2963 return n;
adamc@293	2964 else
adam@1444	2965 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2966 }
adamc@293	2967
adamc@821	2968 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2969 if (s[0] == 0)
adamc@821	2970 return 0;
adamc@821	2971 else if (s[1] != 0)
adam@1444	2972 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	2973 else
adamc@821	2974 return s[0];
adamc@821	2975 }
adamc@821	2976
adamc@311	2977 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2978 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2979 return uw_Basis_True;
adamc@296	2980 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2981 return uw_Basis_False;
adamc@293	2982 else
adam@1444	2983 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2984 }
adamc@436	2985
adam@1352	2986 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	2987 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	2988 struct tm stm = {};
adam@1392	2989 stm.tm_isdst = -1;
adam@1352	2990
adam@1352	2991 if (dot) {
adam@1352	2992 *dot = 0;
adam@1352	2993 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	2994 *dot = '.';
adam@1410	2995 char usec[] = "000000";
adam@1410	2996 int len = strlen(dot+1);
adam@1410	2997 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	2998 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	2999 return r;
adam@1352	3000 }
adam@1352	3001 else {
adam@1352	3002 *dot = '.';
adam@1444	3003 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3004 }
adam@1352	3005 }
adam@1352	3006 else {
adam@1352	3007 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3008 uw_Basis_time r = { mktime(&stm) };
adam@1365	3009 return r;
adam@1352	3010 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3011 uw_Basis_time r = { mktime(&stm) };
adam@1365	3012 return r;
adam@1352	3013 } else
adam@1444	3014 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3015 }
adam@1352	3016 }
adam@1352	3017
adamc@436	3018 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	3019 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	3020 struct tm stm = {};
adam@1392	3021 stm.tm_isdst = -1;
adamc@436	3022
adamc@438	3023 if (dot) {
adamc@438	3024 *dot = 0;
adamc@438	3025 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	3026 *dot = '.';
adam@1365	3027 {
adam@1365	3028 uw_Basis_time r = { mktime(&stm) };
adam@1365	3029 return r;
adam@1365	3030 }
adamc@438	3031 }
adamc@438	3032 else {
adamc@438	3033 *dot = '.';
adam@1444	3034 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3035 }
adamc@438	3036 }
adamc@438	3037 else {
adam@1365	3038 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3039 uw_Basis_time r = { mktime(&stm) };
adam@1365	3040 return r;
adam@1365	3041 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3042 uw_Basis_time r = { mktime(&stm) };
adam@1365	3043 return r;
adam@1632	3044 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3045 uw_Basis_time r = { mktime(&stm) };
adam@1632	3046 return r;
adam@1365	3047 } else
adam@1444	3048 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3049 }
adamc@436	3050 }
adamc@457	3051
adam@1352	3052 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3053 char *end = strchr(s, 0);
adamc@939	3054 struct tm stm = {};
adam@1392	3055 stm.tm_isdst = -1;
adamc@939	3056
adam@1365	3057 if (strptime(s, fmt, &stm) == end) {
adam@1365	3058 uw_Basis_time r = { mktime(&stm) };
adam@1365	3059 return r;
adam@1365	3060 } else
adam@1444	3061 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3062 }
adamc@939	3063
adamc@742	3064 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3065 char *r = ctx->heap.front;
adamc@742	3066 uw_Basis_blob b = {len, r};
adamc@742	3067
adamc@742	3068 uw_check_heap(ctx, len);
adamc@742	3069
adam@1992	3070 if (s[0] == '\\' && s[1] == 'x') {
adam@1992	3071 s += 2;
adam@1992	3072
adam@1992	3073 while (*s) {
adam@1992	3074 int n;
adam@1992	3075 sscanf(s, "%02x", &n);
adam@1992	3076 *r++ = n;
adam@1992	3077 s += 2;
adam@1992	3078 }
adam@1992	3079 } else {
adam@1992	3080 while (*s) {
adam@1992	3081 if (s[0] == '\\') {
adam@1992	3082 if (s[1] == '\\') {
adam@1992	3083 *r++ = '\\';
adam@1992	3084 s += 2;
adam@1992	3085 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adam@1992	3086 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adam@1992	3087 s += 4;
adam@1992	3088 }
adam@1992	3089 else {
adam@1992	3090 *r++ = '\\';
adam@1992	3091 ++s;
adam@1992	3092 }
adam@1992	3093 } else {
adam@1992	3094 *r++ = s[0];
adamc@742	3095 ++s;
adamc@742	3096 }
adamc@742	3097 }
adamc@742	3098 }
adamc@742	3099
adamc@742	3100 b.size = r - ctx->heap.front;
adamc@742	3101 ctx->heap.front = r;
adam@1992	3102
adamc@742	3103 return b;
adamc@742	3104 }
adamc@742	3105
adam@1402	3106 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3107
adamc@463	3108 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3109 int len = strlen(c);
adamc@854	3110 char *p = ctx->outHeaders.start;
adamc@474	3111
adamc@1134	3112 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3113 char *p2;
adamc@474	3114 p += 13;
adamc@474	3115 p2 = strchr(p, '=');
adamc@474	3116
adamc@474	3117 if (p2) {
adamc@474	3118 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3119
adamc@474	3120 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3121 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3122 return NULL;
adamc@1052	3123 else {
adamc@1052	3124 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3125 memcpy(ret, p2+1, sz);
adamc@1052	3126 ret[sz] = 0;
adamc@1052	3127 return ret;
adamc@1052	3128 }
adamc@474	3129 }
adamc@474	3130 }
adamc@474	3131 }
adamc@463	3132
adamc@1134	3133 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3134 char *p2;
adamc@1051	3135
adamc@854	3136 while (1) {
adamc@1051	3137 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3138 if ((p2 = strchr(p, ';'))) {
adamc@1051	3139 size_t n = p2 - (p + len);
adamc@1051	3140 char *r = uw_malloc(ctx, n);
adamc@1051	3141 memcpy(r, p + 1 + len, n-1);
adamc@1051	3142 r[n-1] = 0;
adamc@1051	3143 return r;
adamc@1051	3144 } else
adamc@1051	3145 return p + 1 + len;
adamc@1134	3146 } else if ((p = strchr(p, ';')))
adamc@854	3147 p += 2;
adamc@463	3148 else
adamc@463	3149 return NULL;
adamc@463	3150 }
adamc@463	3151 }
adamc@792	3152
adamc@792	3153 return NULL;
adamc@457	3154 }
adamc@462	3155
adam@1877	3156 static void set_cookie(uw_context ctx) {
adam@1877	3157 if (ctx->usedSig)
adam@1877	3158 ctx->needsResig = 1;
adam@1877	3159 }
adam@1877	3160
adamc@1050	3161 uw_unit uw_Basis_set_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c, uw_Basis_string v, uw_Basis_time *expires, uw_Basis_bool secure) {
adamc@462	3162 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3163 uw_write_header(ctx, c);
adamc@462	3164 uw_write_header(ctx, "=");
adamc@462	3165 uw_write_header(ctx, v);
adamc@466	3166 uw_write_header(ctx, "; path=");
adamc@466	3167 uw_write_header(ctx, prefix);
adamc@1050	3168 if (expires) {
adamc@1050	3169 char formatted[30];
adam@1392	3170 struct tm tm = {};
adam@1392	3171 tm.tm_isdst = -1;
adamc@1050	3172
adam@1365	3173 gmtime_r(&expires->seconds, &tm);
adamc@1050	3174
adamc@1050	3175 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3176
adamc@1050	3177 uw_write_header(ctx, "; expires=");
adamc@1050	3178 uw_write_header(ctx, formatted);
adamc@1050	3179 }
adamc@1050	3180 if (secure)
adamc@1050	3181 uw_write_header(ctx, "; secure");
adamc@462	3182 uw_write_header(ctx, "\r\n");
adam@1877	3183 set_cookie(ctx);
adamc@462	3184
adamc@462	3185 return uw_unit_v;
adamc@462	3186 }
adamc@667	3187
adamc@1050	3188 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3189 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3190 uw_write_header(ctx, c);
adamc@1050	3191 uw_write_header(ctx, "=; path=");
adamc@1050	3192 uw_write_header(ctx, prefix);
adamc@1052	3193 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3194 set_cookie(ctx);
adamc@1050	3195
adamc@1050	3196 return uw_unit_v;
adamc@1050	3197 }
adamc@1050	3198
adamc@1113	3199 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3200
adamc@682	3201 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3202 unsigned i;
adamc@682	3203 delta *d;
adamc@671	3204
adamc@682	3205 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3206 if (ctx->deltas[i].client == client)
adamc@682	3207 return &ctx->deltas[i];
adamc@671	3208
adamc@682	3209 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3210 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3211 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3212
adamc@682	3213 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3214 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3215 }
adamc@671	3216
adamc@682	3217 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3218 d->client = client;
adam@1369	3219 uw_buffer_reset(&d->msgs);
adamc@682	3220 return d;
adamc@671	3221 }
adamc@671	3222
adamc@668	3223 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3224 if (ctx->client == NULL)
adamc@682	3225 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3226
adamc@682	3227 return new_channel(ctx->client);
adamc@668	3228 }
adamc@668	3229
adamc@668	3230 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3231 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3232 size_t len;
adamc@682	3233 int preLen;
adamc@682	3234 char pre[INTS_MAX + 2];
adamc@668	3235
adamc@682	3236 len = strlen(msg);
adamc@682	3237
adamc@682	3238 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3239
adam@1369	3240 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3241 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3242 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3243
adamc@671	3244 return uw_unit_v;
adamc@668	3245 }
adamc@671	3246
adam@1327	3247 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3248 int i;
adamc@1131	3249 cleanup *cl;
adamc@1131	3250
adamc@1131	3251 if (ctx->client)
adamc@1131	3252 release_client(ctx->client);
adamc@1131	3253
adamc@1131	3254 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3255 cl->func(cl->arg);
adamc@1131	3256
adamc@1131	3257 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3258
adamc@1131	3259 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3260 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3261 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3262
adamc@1131	3263 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3264 if (ctx->transactionals[i].free)
adam@1327	3265 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3266
adam@1941	3267 if (ctx->app && ctx->transaction_started) {
adam@1941	3268 ctx->transaction_started = 0;
adam@1941	3269 return ctx->app->db_rollback(ctx);
adam@1941	3270 } else
adam@1941	3271 return 0;
adamc@1131	3272 }
adamc@1131	3273
adam@1956	3274 const char uw_begin_xhtml[] = "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" lang=\"en\">";
adam@1956	3275 const char uw_begin_html5[] = "<!DOCTYPE html><html>";
adam@1728	3276
adam@1877	3277 extern int uw_hash_blocksize;
adam@1877	3278
adam@1877	3279 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3280
adam@1877	3281 static char find_sig(char haystack) {
adam@1877	3282 int i;
adam@1877	3283 char *s = strstr(haystack, sig_intro);
adam@1877	3284
adam@1877	3285 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3286 return NULL;
phurst@1981	3287
adam@1877	3288 s += sizeof sig_intro - 1;
adam@1877	3289
adam@1877	3290 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3291 if (!isxdigit((int)s[i]))
adam@1877	3292 return NULL;
adam@1877	3293
adam@1877	3294 if (s[i] != '"')
adam@1877	3295 return NULL;
adam@1877	3296
adam@1877	3297 return s;
adam@1877	3298 }
adam@1877	3299
adam@1938	3300 int uw_commit(uw_context ctx) {
adamc@1104	3301 int i;
adam@1877	3302 char *sig;
adamc@1104	3303
adamc@1131	3304 if (uw_has_error(ctx)) {
adam@1327	3305 uw_rollback(ctx, 0);
adam@1938	3306 return 0;
adamc@1131	3307 }
adamc@1131	3308
adamc@1104	3309 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3310 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3311 if (ctx->transactionals[i].commit) {
adamc@1083	3312 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3313 if (uw_has_error(ctx)) {
adam@1327	3314 uw_rollback(ctx, 0);
adam@1938	3315 return 0;
adamc@1131	3316 }
adamc@1131	3317 }
adamc@771	3318
adamc@1104	3319 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3320 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3321 if (ctx->transactionals[i].commit) {
adamc@1083	3322 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3323 if (uw_has_error(ctx)) {
adam@1327	3324 uw_rollback(ctx, 0);
adam@1938	3325 return 0;
adamc@1131	3326 }
adamc@1131	3327 }
adamc@1131	3328
adam@1938	3329 if (ctx->transaction_started) {
adam@1939	3330 int code = ctx->app->db_commit(ctx);
adam@1938	3331
adam@1938	3332 if (code) {
adam@1939	3333 if (code == -1)
adam@1938	3334 return 1;
adam@1938	3335
adam@1938	3336 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@1938	3337 if (ctx->transactionals[i].free)
adam@1938	3338 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@1938	3339
adam@1938	3340 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@1938	3341 return 0;
adam@1938	3342 }
adamc@1131	3343 }
adamc@682	3344
adamc@682	3345 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3346 delta *d = &ctx->deltas[i];
adamc@682	3347 client *c = find_client(d->client);
adamc@682	3348
adam@1551	3349 assert (c != NULL);
adam@1551	3350 assert(c->mode == USED);
adamc@682	3351
adam@1447	3352 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3353 }
adamc@682	3354
adamc@682	3355 if (ctx->client)
adamc@685	3356 release_client(ctx->client);
adamc@771	3357
adamc@1104	3358 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3359 if (ctx->transactionals[i].free)
adam@1327	3360 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3361
vshabanoff@1726	3362 uw_check(ctx, 1);
vshabanoff@1726	3363 *ctx->page.front = 0;
adam@1413	3364
adam@1956	3365 if (!ctx->returning_indirectly
adam@1956	3366 && (ctx->app->is_html5
adam@1956	3367 ? !strncmp(ctx->page.start, uw_begin_html5, sizeof uw_begin_html5 - 1)
adam@1956	3368 : !strncmp(ctx->page.start, uw_begin_xhtml, sizeof uw_begin_xhtml - 1))) {
adam@1728	3369 char *s;
adam@1728	3370
adam@1728	3371 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1956	3372 s = ctx->page.start + (ctx->app->is_html5 ? sizeof uw_begin_html5 - 1 : sizeof uw_begin_xhtml - 1);
adam@1728	3373 s = strchr(s, '<');
adam@1728	3374 if (s == NULL) {
adam@1728	3375 // Weird. Document has no tags!
adam@1728	3376
adam@1728	3377 uw_write(ctx, "<head></head><body></body>");
adam@1728	3378 uw_check(ctx, 1);
adam@1728	3379 *ctx->page.front = 0;
adam@1728	3380 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3381 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3382
adam@1729	3383 // Any freeform JavaScript to include?
adam@1729	3384 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3385 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3386 size_t lenP = lenH + 40 + len;
adam@1729	3387 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3388
adam@1729	3389 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3390 start += ctx->page.start - oldPage;
adam@1729	3391 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3392 ctx->page.front += lenP;
adam@1729	3393 memcpy(start, ctx->script_header, lenH);
adam@1729	3394 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3395 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3396 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3397 } else {
adam@1729	3398 size_t lenH = strlen(ctx->script_header);
adam@1729	3399 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3400
adam@1729	3401 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3402 start += ctx->page.start - oldPage;
adam@1729	3403 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3404 ctx->page.front += lenH;
adam@1729	3405 memcpy(start, ctx->script_header, lenH);
adam@1729	3406 }
adam@1728	3407 } else {
adam@1728	3408 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3409
adam@1729	3410 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3411 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3412 size_t lenP = lenH + 53 + len;
adam@1729	3413 char start = s, oldPage = ctx->page.start;
adam@1729	3414
adam@1729	3415 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3416 start += ctx->page.start - oldPage;
adam@1729	3417 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3418 ctx->page.front += lenP;
adam@1729	3419 memcpy(start, "<head>", 6);
adam@1729	3420 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3421 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3422 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3423 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3424 } else {
adam@1729	3425 size_t lenH = strlen(ctx->script_header);
adam@1729	3426 size_t lenP = lenH + 13;
adam@1729	3427 char start = s, oldPage = ctx->page.start;
adam@1729	3428
adam@1729	3429 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3430 start += ctx->page.start - oldPage;
adam@1729	3431 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3432 ctx->page.front += lenP;
adam@1729	3433 memcpy(start, "<head>", 6);
adam@1729	3434 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3435 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3436 }
adamc@916	3437 }
adamc@916	3438 }
adam@1877	3439
adam@1877	3440 if (ctx->needsResig) {
adam@1877	3441 sig = find_sig(ctx->page.start);
adam@1877	3442 if (sig) {
adam@1877	3443 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3444
adam@1877	3445 do {
adam@1877	3446 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3447 sig = find_sig(sig);
adam@1877	3448 } while (sig);
adam@1877	3449 }
adam@1877	3450 }
adam@1938	3451
adam@1938	3452 return 0;
adamc@671	3453 }
adamc@671	3454
adamc@683	3455
adamc@1113	3456 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3457
adamc@771	3458 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3459 uw_callback_with_retry free) {
adamc@771	3460 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3461 if (ctx->used_transactionals+1 > uw_transactionals_max)
adamc@1113	3462 uw_error(ctx, FATAL, "Exceeded limit on number of transactionals");
adamc@1084	3463 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3464 ++ctx->n_transactionals;
adamc@771	3465 }
adamc@771	3466
adamc@771	3467 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3468 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3469 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3470 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	3471 }
adamc@771	3472
adamc@683	3473
adamc@683	3474 // "Garbage collection"
adamc@683	3475
adamc@1121	3476 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3477 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3478
adamc@1121	3479 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3480 int r = setjmp(ctx->jmp_buf);
adamc@683	3481
adamc@1121	3482 if (r == 0)
adamc@1121	3483 uw_do_expunge(ctx, cli, data);
adamc@1121	3484 else
adamc@1121	3485 ctx->app->db_rollback(ctx);
adamc@1121	3486
adamc@1121	3487 uw_post_expunge(ctx, data);
adamc@683	3488
adamc@683	3489 return r;
adamc@683	3490 }
adamc@683	3491
adamc@683	3492 void uw_prune_clients(uw_context ctx) {
adamc@683	3493 client c, next, *prev = NULL;
adamc@683	3494 time_t cutoff;
adamc@683	3495
adamc@1094	3496 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3497
adamc@683	3498 pthread_mutex_lock(&clients_mutex);
adam@1707	3499 pruning_thread = pthread_self();
adam@1707	3500 pruning_thread_initialized = 1;
adamc@683	3501
adamc@683	3502 for (c = clients_used; c; c = next) {
adamc@683	3503 next = c->next;
adamc@683	3504 pthread_mutex_lock(&c->lock);
adamc@685	3505 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3506 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3507 if (prev)
adamc@683	3508 prev->next = next;
adamc@683	3509 else
adamc@683	3510 clients_used = next;
adamc@683	3511 while (fk == UNLIMITED_RETRY) {
adam@1941	3512 uw_reset(ctx);
adamc@1121	3513 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3514 if (fk == UNLIMITED_RETRY)
adamc@684	3515 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3516 }
adamc@684	3517 if (fk == SUCCESS)
adamc@684	3518 free_client(c);
adamc@1121	3519 else
adamc@856	3520 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3521 }
adamc@683	3522 else
adamc@683	3523 prev = c;
adamc@683	3524 pthread_mutex_unlock(&c->lock);
adamc@683	3525 }
adamc@683	3526
adamc@683	3527 pthread_mutex_unlock(&clients_mutex);
adamc@683	3528 }
adamc@687	3529
adamc@687	3530 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3531 int r = setjmp(ctx->jmp_buf);
adamc@687	3532
adamc@687	3533 if (r == 0) {
adam@1936	3534 uw_ensure_transaction(ctx);
adamc@1094	3535 ctx->app->initializer(ctx);
adamc@1094	3536 if (ctx->app->db_commit(ctx))
adamc@687	3537 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3538 }
adamc@687	3539
adamc@687	3540 return r;
adamc@687	3541 }
adamc@717	3542
adamc@1065	3543 static int url_bad(uw_Basis_string s) {
adamc@1065	3544 for (; *s; ++s)
adamc@1153	3545 if (!isgraph((int)*s))
adamc@1065	3546 return 1;
adamc@1065	3547
adamc@1065	3548 return 0;
adamc@1065	3549 }
adamc@1065	3550
adamc@717	3551 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3552 if (url_bad(s))
adamc@1065	3553 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3554 if (ctx->app->check_url(s))
adamc@770	3555 return s;
adamc@770	3556 else
adamc@770	3557 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3558 }
adamc@734	3559
adamc@770	3560 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3561 if (url_bad(s))
adamc@1065	3562 return NULL;
adamc@1094	3563 if (ctx->app->check_url(s))
adamc@770	3564 return s;
adamc@770	3565 else
adamc@770	3566 return NULL;
adamc@770	3567 }
adamc@770	3568
adam@1465	3569 static int mime_format(const char *s) {
adamc@770	3570 for (; *s; ++s)
adamc@1153	3571 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.')
adamc@770	3572 return 0;
adamc@770	3573
adamc@770	3574 return 1;
adamc@770	3575 }
adamc@770	3576
adamc@741	3577 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3578 if (!mime_format(s))
adamc@770	3579 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3580
adamc@1094	3581 if (ctx->app->check_mime(s))
adamc@770	3582 return s;
adamc@770	3583 else
adamc@770	3584 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3585 }
adamc@770	3586
adamc@770	3587 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3588 if (!mime_format(s))
adamc@770	3589 return NULL;
adamc@770	3590
adamc@1094	3591 if (ctx->app->check_mime(s))
adamc@770	3592 return s;
adamc@770	3593 else
adamc@770	3594 return NULL;
adamc@741	3595 }
adamc@741	3596
adam@1465	3597 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3598 if (!mime_format(s))
adam@1465	3599 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3600
adam@1465	3601 if (ctx->app->check_requestHeader(s))
adam@1465	3602 return s;
adam@1465	3603 else
adam@1465	3604 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3605 }
adam@1465	3606
adam@1465	3607 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3608 if (!mime_format(s))
adam@1465	3609 return NULL;
adam@1465	3610
adam@1465	3611 if (ctx->app->check_requestHeader(s))
adam@1465	3612 return s;
adam@1465	3613 else
adam@1465	3614 return NULL;
adam@1465	3615 }
adam@1465	3616
adam@1465	3617 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3618 if (!mime_format(s))
adam@1465	3619 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3620
adam@1465	3621 if (ctx->app->check_responseHeader(s))
adam@1465	3622 return s;
adam@1465	3623 else
adam@1465	3624 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3625 }
adam@1465	3626
adam@1799	3627 static int envVar_format(const char *s) {
adam@1799	3628 for (; *s; ++s)
adam@1799	3629 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3630 return 0;
adam@1799	3631
adam@1799	3632 return 1;
adam@1799	3633 }
adam@1799	3634
adam@1465	3635 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3636 if (!envVar_format(s))
adam@1465	3637 return NULL;
adam@1465	3638
adam@1465	3639 if (ctx->app->check_responseHeader(s))
adam@1465	3640 return s;
adam@1465	3641 else
adam@1465	3642 return NULL;
adam@1465	3643 }
adam@1465	3644
adam@1799	3645 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3646 if (!envVar_format(s))
adam@1799	3647 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3648
adam@1799	3649 if (ctx->app->check_envVar(s))
adam@1799	3650 return s;
adam@1799	3651 else
adam@1799	3652 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3653 }
adam@1799	3654
adam@1799	3655 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3656 if (!mime_format(s))
adam@1799	3657 return NULL;
adam@1799	3658
adam@1799	3659 if (ctx->app->check_envVar(s))
adam@1799	3660 return s;
adam@1799	3661 else
adam@1799	3662 return NULL;
adam@1799	3663 }
adam@1799	3664
adam@1465	3665 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3666 return uw_Basis_requestHeader(ctx, name);
adam@1465	3667 }
adam@1465	3668
adam@1465	3669 static int mime_value_format(const char *s) {
adam@1465	3670 for (; *s; ++s)
adam@1465	3671 if (s == '\r' \|\| s == '\n')
adam@1465	3672 return 0;
adam@1465	3673
adam@1465	3674 return 1;
adam@1465	3675 }
adam@1465	3676
adam@1465	3677 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3678 if (!mime_value_format(value))
adam@1465	3679 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3680
adam@1465	3681 uw_write_header(ctx, name);
adam@1465	3682 uw_write_header(ctx, ": ");
adam@1465	3683 uw_write_header(ctx, value);
adam@1465	3684 uw_write_header(ctx, "\r\n");
adam@1465	3685
adam@1465	3686 return uw_unit_v;
adam@1465	3687 }
adam@1465	3688
adam@1799	3689 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1993	3690 if (ctx->get_env)
adam@1993	3691 return ctx->get_env(ctx->get_env_data, name);
adam@1993	3692 else
adam@1994	3693 return getenv(name);
adam@1799	3694 }
adam@1799	3695
adamc@734	3696 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3697 return s ? s : "";
adamc@734	3698 }
adamc@734	3699
adamc@734	3700 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3701 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3702 int i;
phurst@1981	3703
adamc@734	3704 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3705 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3706
adamc@734	3707 return r;
adamc@734	3708 }
adamc@734	3709
adam@1512	3710 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3711 * optimizations that would enable timing attacks. See:
adam@1512	3712 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3713 */
adam@1512	3714 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3715 int i, x = 0, len1 = strlen(s1);
adam@1512	3716
adam@1512	3717 if (len1 != strlen(s2)) return 0;
adam@1512	3718
adam@1512	3719 for (i = 0; i < len1; ++i) {
adam@1512	3720 __asm__ __volatile__ ("");
adam@1512	3721 x \|= s1[i] ^ s2[i];
adam@1512	3722 }
adam@1512	3723
adam@1512	3724 return x == 0;
adam@1512	3725 }
adam@1512	3726
adamc@734	3727 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3728 ctx->usedSig = 1;
adamc@1094	3729 return ctx->app->cookie_sig(ctx);
adamc@734	3730 }
adamc@737	3731
adamc@737	3732 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3733 return f.name;
adamc@737	3734 }
adamc@737	3735
adamc@740	3736 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3737 return f.type;
adamc@740	3738 }
adamc@740	3739
adamc@745	3740 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3741 return b.size;
adamc@745	3742 }
adamc@745	3743
adamc@1119	3744 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3745 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3746
adamc@1119	3747 return b;
adamc@1119	3748 }
adamc@1119	3749
adamc@737	3750 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3751 return f.data;
adamc@737	3752 }
adamc@741	3753
adam@1347	3754 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3755 return pb.type;
adam@1347	3756 }
adam@1347	3757
adam@1347	3758 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3759 return pb.data;
adam@1347	3760 }
adam@1347	3761
adam@1471	3762 static char *old_headers(uw_context ctx) {
adam@1471	3763 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3764 return NULL;
adam@1471	3765 else {
adam@1471	3766 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3767
adam@1471	3768 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3769 return NULL;
adam@1471	3770 else {
adam@1471	3771 s = strchr(s+15, '\n');
adam@1471	3772 if (s == NULL)
adam@1471	3773 return NULL;
adam@1471	3774 else
adam@1471	3775 return uw_strdup(ctx, s+1);
adam@1471	3776 }
adam@1471	3777 }
adam@1471	3778 }
adam@1471	3779
adamc@741	3780 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3781 cleanup *cl;
adamc@741	3782 int len;
adam@1471	3783 char *oldh;
adamc@741	3784
adam@1451	3785 if (!ctx->allowed_to_return_indirectly)
adam@1451	3786 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3787
adamc@1065	3788 ctx->returning_indirectly = 1;
adam@1471	3789 oldh = old_headers(ctx);
adam@1369	3790 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3791 uw_buffer_reset(&ctx->page);
adamc@741	3792
adamc@856	3793 uw_write_header(ctx, on_success);
adamc@856	3794 uw_write_header(ctx, "Content-Type: ");
adamc@741	3795 uw_write_header(ctx, mimeType);
adam@1934	3796 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369	3797 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3798 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3799 ctx->outHeaders.front += len;
adamc@1066	3800 uw_write_header(ctx, "\r\n");
adam@1471	3801 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3802
adam@1369	3803 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3804
adamc@741	3805 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3806 cl->func(cl->arg);
adamc@741	3807
adamc@741	3808 ctx->cleanup_front = ctx->cleanup;
adamc@741	3809
adamc@1065	3810 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3811 }
adamc@1065	3812
adam@1932	3813 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932	3814 cleanup *cl;
adam@1932	3815 int len;
adam@1932	3816 char *oldh;
adam@1932	3817
adam@1932	3818 if (!ctx->allowed_to_return_indirectly)
adam@1932	3819 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932	3820
adam@1932	3821 ctx->returning_indirectly = 1;
adam@1932	3822 oldh = old_headers(ctx);
adam@1932	3823 uw_buffer_reset(&ctx->outHeaders);
adam@1932	3824
adam@1932	3825 uw_write_header(ctx, on_success);
adam@1932	3826 uw_write_header(ctx, "Content-Type: ");
adam@1932	3827 uw_write_header(ctx, mimeType);
adam@1934	3828 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932	3829 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932	3830 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932	3831 ctx->outHeaders.front += len;
adam@1932	3832 uw_write_header(ctx, "\r\n");
adam@1932	3833 if (oldh) uw_write_header(ctx, oldh);
adam@1932	3834
adam@1932	3835 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932	3836 cl->func(cl->arg);
adam@1932	3837
adam@1932	3838 ctx->cleanup_front = ctx->cleanup;
adam@1932	3839
adam@1932	3840 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932	3841 }
adam@1932	3842
adamc@1065	3843 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3844 cleanup *cl;
adamc@1066	3845 char *s;
adam@1471	3846 char *oldh;
adamc@1065	3847
adam@1451	3848 if (!ctx->allowed_to_return_indirectly)
adam@1451	3849 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3850
adamc@1065	3851 ctx->returning_indirectly = 1;
adam@1471	3852 oldh = old_headers(ctx);
adam@1369	3853 uw_buffer_reset(&ctx->page);
adam@1369	3854 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3855 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3856 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3857 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3858
adam@1409	3859 if (on_success[0])
adam@1409	3860 uw_write_header(ctx, on_redirect);
adam@1409	3861 else
adam@1409	3862 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3863 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3864 if (s) {
adamc@1066	3865 char *s2;
adam@1409	3866 if (s[0] == '\n') ++s;
adam@1409	3867 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3868 *s2 = 0;
adamc@1066	3869 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3870 uw_write_header(ctx, s);
adamc@1066	3871 uw_write_header(ctx, "\n");
adamc@1066	3872 }
adamc@1066	3873 }
adamc@1066	3874 }
adamc@1066	3875
adamc@1065	3876 uw_write_header(ctx, "Location: ");
adamc@1065	3877 uw_write_header(ctx, url);
adamc@1065	3878 uw_write_header(ctx, "\r\n\r\n");
adam@1471	3879 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	3880
adamc@1065	3881 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3882 cl->func(cl->arg);
adamc@1065	3883
adamc@1065	3884 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3885
adamc@1065	3886 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3887 }
adamc@874	3888
adamc@874	3889 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	3890 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	3891
adamc@874	3892 for (; *s; ++s) {
adamc@874	3893 if (s[0] == '\'') {
adamc@874	3894 *r++ = '\'';
adamc@874	3895 for (++s; *s; ++s) {
adamc@874	3896 if (s[0] == '\'') {
adamc@874	3897 *r++ = '\'';
adamc@874	3898 break;
adamc@874	3899 } else if (s[0] == '\\') {
adam@1467	3900 *r++ = '\\';
adam@1467	3901 *r++ = s[1];
adam@1467	3902 ++s;
adamc@874	3903 } else
adamc@874	3904 *r++ = s[0];
adamc@874	3905 }
adamc@874	3906 if (*s == 0) break;
adam@1467	3907 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	3908 s += 3;
adamc@874	3909 else
adamc@874	3910 *r++ = s[0];
adamc@874	3911 }
adamc@874	3912
adam@1467	3913 *r = 0;
adam@1467	3914 return ret;
adamc@874	3915 }
adamc@874	3916
adamc@922	3917 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3918 va_list ap;
adamc@922	3919 size_t len = 1;
adamc@922	3920 char s, r, *s2;
phurst@1981	3921
adamc@922	3922 va_start(ap, ctx);
adamc@922	3923 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3924 len += strlen(s);
adamc@922	3925 va_end(ap);
adamc@922	3926
adamc@922	3927 r = uw_malloc(ctx, len);
adamc@922	3928 va_start(ap, ctx);
adamc@922	3929 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3930 while (*s)
adamc@922	3931 s2++ = s++;
adamc@922	3932 va_end(ap);
adamc@922	3933 *s2 = 0;
adamc@922	3934
adamc@922	3935 return r;
adamc@922	3936 }
adamc@1006	3937
adam@1365	3938 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	3939
adamc@1006	3940 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	3941 uw_Basis_time r = { time(NULL) };
adam@1365	3942 return r;
adamc@1006	3943 }
adamc@1061	3944
adam@1369	3945 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	3946 tm.seconds += n;
adam@1365	3947 return tm;
adamc@1138	3948 }
adamc@1138	3949
adam@1514	3950 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	3951 return difftime(tm2.seconds, tm1.seconds);
adam@1514	3952 }
adam@1514	3953
adam@1685	3954 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	3955 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	3956 }
adam@1685	3957
adam@1685	3958 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	3959 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	3960 }
adam@1685	3961
adam@1514	3962 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	3963 return tm.seconds;
adam@1514	3964 }
adam@1514	3965
phurst@1971	3966 uw_Basis_time uw_Basis_fromDatetime(uw_context ctx, uw_Basis_int year, uw_Basis_int month, uw_Basis_int day, uw_Basis_int hour, uw_Basis_int minute, uw_Basis_int second) {
phurst@1971	3967 struct tm tm = { .tm_year = year - 1900, .tm_mon = month, .tm_mday = day,
phurst@1971	3968 .tm_hour = hour, .tm_min = minute, .tm_sec = second };
phurst@1984	3969 uw_Basis_time r = { timelocal(&tm) };
phurst@1971	3970 return r;
phurst@1971	3971 }
phurst@1971	3972
phurst@1971	3973 uw_Basis_int uw_Basis_datetimeYear(uw_context ctx, uw_Basis_time time) {
phurst@1971	3974 struct tm tm;
phurst@1982	3975 localtime_r(&time.seconds, &tm);
phurst@1971	3976 return tm.tm_year + 1900;
phurst@1971	3977 }
phurst@1971	3978
phurst@1971	3979 uw_Basis_int uw_Basis_datetimeMonth(uw_context ctx, uw_Basis_time time) {
phurst@1971	3980 struct tm tm;
phurst@1982	3981 localtime_r(&time.seconds, &tm);
phurst@1971	3982 return tm.tm_mon;
phurst@1971	3983 }
phurst@1971	3984
phurst@1971	3985 uw_Basis_int uw_Basis_datetimeDay(uw_context ctx, uw_Basis_time time) {
phurst@1971	3986 struct tm tm;
phurst@1982	3987 localtime_r(&time.seconds, &tm);
phurst@1971	3988 return tm.tm_mday;
phurst@1971	3989 }
phurst@1971	3990
phurst@1971	3991 uw_Basis_int uw_Basis_datetimeHour(uw_context ctx, uw_Basis_time time) {
phurst@1971	3992 struct tm tm;
phurst@1982	3993 localtime_r(&time.seconds, &tm);
phurst@1971	3994 return tm.tm_hour;
phurst@1971	3995 }
phurst@1971	3996
phurst@1971	3997 uw_Basis_int uw_Basis_datetimeMinute(uw_context ctx, uw_Basis_time time) {
phurst@1971	3998 struct tm tm;
phurst@1982	3999 localtime_r(&time.seconds, &tm);
phurst@1971	4000 return tm.tm_min;
phurst@1971	4001 }
phurst@1971	4002
phurst@1971	4003 uw_Basis_int uw_Basis_datetimeSecond(uw_context ctx, uw_Basis_time time) {
phurst@1971	4004 struct tm tm;
phurst@1982	4005 localtime_r(&time.seconds, &tm);
phurst@1971	4006 return tm.tm_sec;
phurst@1971	4007 }
phurst@1971	4008
phurst@1973	4009 uw_Basis_int uw_Basis_datetimeDayOfWeek(uw_context ctx, uw_Basis_time time) {
phurst@1973	4010 struct tm tm;
phurst@1982	4011 localtime_r(&time.seconds, &tm);
phurst@1973	4012 return tm.tm_wday;
phurst@1973	4013 }
phurst@1971	4014
phurst@1971	4015
adamc@1061	4016 void uw_get_global(uw_context ctx, char name) {
adamc@1061	4017 int i;
adamc@1061	4018
adamc@1061	4019 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4020 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	4021 return ctx->globals[i].data;
adamc@1061	4022
adamc@1061	4023 return NULL;
adamc@1061	4024 }
adamc@1061	4025
adamc@1113	4026 size_t uw_globals_max = SIZE_MAX;
adamc@1113	4027
adamc@1061	4028 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	4029 int i;
adamc@1061	4030
adamc@1061	4031 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4032 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	4033 if (ctx->globals[i].free)
adamc@1061	4034 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	4035 ctx->globals[i].data = data;
adamc@1061	4036 ctx->globals[i].free = free;
adamc@1061	4037 return;
adamc@1061	4038 }
adamc@1089	4039
adamc@1113	4040 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	4041 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	4042
adamc@1061	4043 ++ctx->n_globals;
adamc@1061	4044 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	4045 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	4046 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	4047 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	4048 }
adamc@1061	4049
adamc@1061	4050 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	4051 return !!isalnum((int)c);
adamc@1061	4052 }
adamc@1061	4053
adamc@1061	4054 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	4055 return !!isalpha((int)c);
adamc@1061	4056 }
adamc@1061	4057
adamc@1061	4058 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	4059 return !!isblank((int)c);
adamc@1061	4060 }
adamc@1061	4061
adamc@1061	4062 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	4063 return !!iscntrl((int)c);
adamc@1061	4064 }
adamc@1061	4065
adamc@1061	4066 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4067 return !!isdigit((int)c);
adamc@1061	4068 }
adamc@1061	4069
adamc@1061	4070 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	4071 return !!isgraph((int)c);
adamc@1061	4072 }
adamc@1061	4073
adamc@1061	4074 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4075 return !!islower((int)c);
adamc@1061	4076 }
adamc@1061	4077
adamc@1061	4078 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	4079 return !!isprint((int)c);
adamc@1061	4080 }
adamc@1061	4081
adamc@1061	4082 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	4083 return !!ispunct((int)c);
adamc@1061	4084 }
adamc@1061	4085
adamc@1061	4086 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	4087 return !!isspace((int)c);
adamc@1061	4088 }
adamc@1063	4089
adamc@1061	4090 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4091 return !!isupper((int)c);
adamc@1061	4092 }
adamc@1061	4093
adamc@1061	4094 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4095 return !!isxdigit((int)c);
adamc@1061	4096 }
adamc@1061	4097
adamc@1061	4098 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4099 return tolower((int)c);
adamc@1061	4100 }
adamc@1061	4101
adamc@1061	4102 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4103 return toupper((int)c);
adamc@1061	4104 }
adamc@1066	4105
adamc@1128	4106 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	4107 return (unsigned char)c;
adamc@1128	4108 }
adamc@1128	4109
adamc@1128	4110 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	4111 return n;
adamc@1128	4112 }
adamc@1128	4113
adamc@1066	4114 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	4115 return ctx->current_url;
adamc@1066	4116 }
adamc@1066	4117
adamc@1066	4118 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	4119 ctx->current_url = s;
adamc@1066	4120 }
adamc@1114	4121
adamc@1114	4122 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	4123 ctx->deadline = n;
adamc@1114	4124 }
adamc@1114	4125
adamc@1114	4126 void uw_check_deadline(uw_context ctx) {
adamc@1114	4127 if (uw_time > ctx->deadline)
adamc@1114	4128 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	4129 }
adamc@1115	4130
adamc@1115	4131 size_t uw_database_max = SIZE_MAX;
adamc@1120	4132
adam@1389	4133 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@1389	4134 fprintf(stderr, "%s\n", s);
adam@1389	4135 return 0;
adam@1389	4136 }
adam@1389	4137
adamc@1120	4138 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
adam@1334	4139 if (ctx->log_debug)
adam@1334	4140 ctx->log_debug(ctx->logger_data, "%s\n", s);
adam@1334	4141 else
adam@1334	4142 fprintf(stderr, "%s\n", s);
adamc@1120	4143 return uw_unit_v;
adamc@1120	4144 }
adamc@1250	4145
adam@1933	4146 static pthread_mutex_t rand_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@1933	4147
adamc@1250	4148 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@1486	4149 uw_Basis_int ret;
adam@1933	4150 pthread_mutex_lock(&rand_mutex);
adam@1486	4151 int r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@1933	4152 pthread_mutex_unlock(&rand_mutex);
phurst@1981	4153
adam@1486	4154 if (r)
adam@1486	4155 return abs(ret);
adam@1486	4156 else
adam@1486	4157 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	4158 }
adam@1347	4159
adam@1347	4160 void uw_noPostBody(uw_context ctx) {
adam@1347	4161 ctx->hasPostBody = 0;
adam@1347	4162 }
adam@1347	4163
adam@1347	4164 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	4165 ctx->hasPostBody = 1;
adam@1347	4166 ctx->postBody = pb;
adam@1347	4167 }
adam@1347	4168
adam@1347	4169 int uw_hasPostBody(uw_context ctx) {
adam@1347	4170 return ctx->hasPostBody;
adam@1347	4171 }
adam@1347	4172
adam@1386	4173 void uw_isPost(uw_context ctx) {
adam@1386	4174 ctx->isPost = 1;
adam@1386	4175 }
adam@1386	4176
adam@1386	4177 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4178 return ctx->isPost;
adam@1386	4179 }
adam@1386	4180
adam@1485	4181 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4182 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4183 }
adam@1485	4184
adam@1370	4185 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4186 ctx->queryString = s;
adam@1370	4187 }
adam@1370	4188
adam@1370	4189 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4190 return ctx->queryString;
adam@1370	4191 }
adam@1370	4192
adam@1347	4193 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4194 if (ctx->hasPostBody)
adam@1347	4195 return ctx->postBody;
adam@1347	4196 else
adam@1347	4197 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4198 }
adam@1349	4199
adam@1349	4200 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4201 int r = setjmp(ctx->jmp_buf);
adam@1349	4202
adam@1349	4203 if (r == 0) {
adam@1936	4204 uw_ensure_transaction(ctx);
adam@1418	4205
adam@1349	4206 callback(ctx);
adam@1349	4207 }
adam@1349	4208
adam@1349	4209 return r;
adam@1349	4210 }
adam@1360	4211
adam@1360	4212 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4213 char buf[14];
adam@1397	4214 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4215 }
adam@1365	4216
adam@1365	4217 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4218 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	4219 }
adam@1365	4220
adam@1365	4221 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4222 return !!(t1.seconds < t2.seconds \|\| t1.microseconds < t2.microseconds);
adam@1365	4223 }
adam@1365	4224
adam@1365	4225 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4226 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4227 }
adam@1365	4228
adam@1372	4229 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4230 struct tm stm = {};
adam@1375	4231 char *end = strchr(s, 0);
adam@1449	4232 stm.tm_isdst = -1;
adam@1375	4233
adam@1632	4234 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4235 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4236
kkallio@1448	4237 r->seconds = timegm(&stm);
adam@1373	4238 r->microseconds = 0;
adam@1373	4239
adam@1373	4240 return r;
adam@1374	4241 }
adam@1374	4242 else
adam@1373	4243 return NULL;
adam@1372	4244 }
adam@1407	4245
adam@1407	4246 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4247 int r = setjmp(ctx->jmp_buf);
adam@1407	4248
adam@1407	4249 if (ctx->app->on_error) {
adam@1407	4250 if (r == 0) {
adam@1936	4251 uw_ensure_transaction(ctx);
adam@1407	4252
adam@1409	4253 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4254 if (on_success[0])
adam@1409	4255 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4256 else
adam@1409	4257 uw_write_header(ctx, "Status: ");
adam@1409	4258 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919	4259 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1956	4260 uw_write(ctx, ctx->app->is_html5 ? uw_begin_html5 : uw_begin_xhtml);
adam@1407	4261 ctx->app->on_error(ctx, msg);
adam@1407	4262 uw_write(ctx, "</html>");
adam@1407	4263 }
adam@1407	4264
adam@1407	4265 return r;
adam@1407	4266 } else
adam@1407	4267 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4268 }
adam@1451	4269
adam@1451	4270 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4271 ctx->allowed_to_return_indirectly = 1;
adam@1451	4272 }
adam@1483	4273
adam@1556	4274 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4275 int len;
adam@1703	4276 char *r;
adam@1703	4277
adam@1703	4278 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4279 r = ctx->heap.front;
adam@1703	4280 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4281 ctx->heap.front += len+1;
adam@1703	4282 return r;
adam@1556	4283 }
adam@1571	4284
adam@1571	4285 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4286 return n;
adam@1571	4287 }
adam@1571	4288
adam@1571	4289 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4290 return ceil(n);
adam@1571	4291 }
adam@1571	4292
adam@1571	4293 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4294 return trunc(n);
adam@1571	4295 }
adam@1571	4296
adam@1571	4297 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4298 return round(n);
adam@1571	4299 }
adam@1755	4300
adam@1755	4301 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755	4302 char *p;
adam@1755	4303
adam@1755	4304 for (p = s; *p; ++p) {
adam@1755	4305 char c = *p;
adam@1801	4306 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755	4307 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4308 }
adam@1755	4309
adam@1755	4310 return s;
adam@1755	4311 }
adam@1755	4312
adam@1755	4313 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4314 char *p;
adam@1755	4315
adam@1755	4316 for (p = s; *p; ++p) {
adam@1755	4317 char c = *p;
adam@1801	4318 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4319 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4320 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4321 }
adam@1755	4322
adam@1755	4323 return s;
adam@1755	4324 }
adam@1755	4325
adam@1755	4326 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4327 char *p;
adam@1755	4328
adam@1755	4329 if (!*s)
adam@1755	4330 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4331
adam@1801	4332 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4333 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4334
adam@1755	4335 for (p = s; *p; ++p) {
adam@1755	4336 char c = *p;
adam@1801	4337 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4338 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4339 }
adam@1755	4340
adam@1755	4341 return s;
adam@1755	4342 }
adam@1787	4343
adam@1787	4344 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4345 return f.name;
adam@1787	4346 }
adam@1787	4347
adam@1787	4348 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4349 return f.value;
adam@1787	4350 }
adam@1787	4351
adam@1787	4352 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4353 return f.remaining;
adam@1787	4354 }
adam@1787	4355
adam@1787	4356 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4357 char *unurl;
adam@1787	4358 uw_Basis_postField *f;
adam@1787	4359
adam@1788	4360 if (!ctx->hasPostBody)
adam@1788	4361 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4362
adam@1788	4363 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4364 return NULL;
adam@1787	4365
adam@1787	4366 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4367 unurl = s;
adam@1787	4368 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4369 s = strchr(s, 0);
adam@1788	4370 if (!s)
adam@1788	4371 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4372 ++s;
adam@1788	4373 unurl = s;
adam@1788	4374 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4375 s = strchr(s, 0);
adam@1788	4376 if (!s)
adam@1788	4377 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4378 f->remaining = s+1;
adam@1787	4379
adam@1787	4380 return f;
adam@1787	4381 }

Mercurial > urweb

annotate src/c/urweb.c @ 2204:01c8aceac480