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

annotate src/c/urweb.c @ 2160:72fe1cc704c5

Tag NULLs with their types in SQL, to help the DBMS do type inference

author	Adam Chlipala <adam@chlipala.net>
date	Sat, 04 Jul 2015 19:24:26 -0400
parents	4895c41b2ec6
children	8a01e8f21de9 2b1af5dc6dee

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
adam@2104	170 static pthread_mutex_t rand_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2104	171
adam@2104	172 static uw_Basis_int my_rand() {
adam@2104	173 pthread_mutex_lock(&rand_mutex);
adam@2105	174 int ret, r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@2104	175 pthread_mutex_unlock(&rand_mutex);
adam@2104	176
adam@2104	177 if (r)
adam@2105	178 return abs(ret);
adam@2104	179 else
adam@2104	180 return -1;
adam@2104	181 }
adam@2104	182
adamc@682	183 static client *new_client() {
adamc@667	184 client *c;
adamc@667	185
adamc@667	186 pthread_mutex_lock(&clients_mutex);
adamc@667	187
adamc@667	188 if (clients_free) {
adamc@667	189 c = clients_free;
adamc@682	190 clients_free = clients_free->next;
adamc@667	191 }
adam@1672	192 else if (n_clients >= uw_clients_max) {
adam@1672	193 pthread_mutex_unlock(&clients_mutex);
adamc@1113	194 return NULL;
adam@1672	195 } else {
adamc@667	196 ++n_clients;
adamc@667	197 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	198 c = malloc(sizeof(client));
adamc@667	199 c->id = n_clients-1;
adamc@682	200 pthread_mutex_init(&c->lock, NULL);
adamc@689	201 pthread_mutex_init(&c->pull_lock, NULL);
adam@1369	202 uw_buffer_init(uw_messages_max, &c->msgs, 0);
adamc@667	203 clients[n_clients-1] = c;
adamc@667	204 }
adamc@667	205
adamc@682	206 pthread_mutex_lock(&c->lock);
adamc@667	207 c->mode = USED;
adam@2104	208 c->pass = my_rand();
adamc@682	209 c->sock = -1;
adamc@682	210 c->last_contact = time(NULL);
adam@1369	211 uw_buffer_reset(&c->msgs);
adamc@682	212 c->n_channels = 0;
adamc@685	213 c->refcount = 0;
adamc@1121	214 c->data = uw_init_client_data();
adamc@682	215 pthread_mutex_unlock(&c->lock);
adamc@682	216
adamc@682	217 c->next = clients_used;
adamc@682	218 clients_used = c;
adamc@667	219
adamc@667	220 pthread_mutex_unlock(&clients_mutex);
adamc@667	221
adamc@667	222 return c;
adamc@667	223 }
adamc@667	224
adamc@685	225 static void use_client(client *c) {
adamc@685	226 pthread_mutex_lock(&c->lock);
adamc@685	227 ++c->refcount;
adamc@685	228 pthread_mutex_unlock(&c->lock);
adamc@689	229 pthread_mutex_lock(&c->pull_lock);
adamc@685	230 }
adamc@685	231
adamc@685	232 static void release_client(client *c) {
adamc@689	233 pthread_mutex_unlock(&c->pull_lock);
adamc@685	234 pthread_mutex_lock(&c->lock);
adamc@685	235 --c->refcount;
adamc@685	236 pthread_mutex_unlock(&c->lock);
adamc@685	237 }
adamc@685	238
adamc@856	239 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adam@1707	240 static pthread_t pruning_thread;
adam@1707	241 static int pruning_thread_initialized = 0;
adamc@667	242
adamc@682	243 static client *find_client(unsigned id) {
adamc@667	244 client *c;
adam@1708	245 int i_am_pruner = pruning_thread_initialized && pthread_equal(pruning_thread, pthread_self());
adam@1708	246
adam@1708	247 if (!i_am_pruner) pthread_mutex_lock(&clients_mutex);
adamc@667	248
adamc@667	249 if (id >= n_clients) {
adam@1708	250 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	251 return NULL;
adamc@667	252 }
adamc@667	253
adamc@667	254 c = clients[id];
adamc@667	255
adam@1708	256 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	257 return c;
adamc@668	258 }
adamc@668	259
adamc@856	260 static char *on_success = "HTTP/1.1 200 OK\r\n";
adam@1409	261 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	262
adamc@856	263 void uw_set_on_success(char *s) {
adamc@856	264 on_success = s;
adamc@856	265 }
adamc@856	266
adam@1552	267 static void chastise(int (send)(int sockfd, const void buf, ssize_t len), int sock) {
adam@1552	268 send(sock, on_success, strlen(on_success));
adam@1552	269 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1552	270 send(sock, "R", 1);
adam@1552	271 close(sock);
adam@1552	272 }
adam@1552	273
adamc@863	274 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	275 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	276 int (*close)(int fd),
adamc@864	277 void *logger_data, uw_logger log_error) {
adamc@682	278 client *c = find_client(id);
adamc@668	279
adamc@668	280 if (c == NULL) {
adam@1552	281 chastise(send, sock);
adamc@864	282 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	283 return;
adamc@667	284 }
adamc@667	285
adamc@682	286 pthread_mutex_lock(&c->lock);
adamc@671	287
adamc@682	288 if (c->mode != USED) {
adamc@682	289 pthread_mutex_unlock(&c->lock);
adam@1552	290 chastise(send, sock);
adamc@864	291 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	292 return;
adamc@667	293 }
adamc@667	294
adamc@682	295 if (pass != c->pass) {
adamc@682	296 pthread_mutex_unlock(&c->lock);
adam@1552	297 chastise(send, sock);
adamc@864	298 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	299 return;
adamc@667	300 }
adamc@667	301
adamc@682	302 if (c->sock != -1) {
adamc@863	303 c->close(c->sock);
adamc@682	304 c->sock = -1;
adamc@682	305 }
adamc@667	306
adamc@682	307 c->last_contact = time(NULL);
adamc@682	308
adam@1369	309 if (uw_buffer_used(&c->msgs) > 0) {
adamc@863	310 send(sock, on_success, strlen(on_success));
adamc@863	311 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1369	312 send(sock, c->msgs.start, uw_buffer_used(&c->msgs));
adam@1369	313 uw_buffer_reset(&c->msgs);
adamc@667	314 close(sock);
adamc@667	315 }
adamc@863	316 else {
adamc@682	317 c->sock = sock;
adamc@863	318 c->send = send;
adamc@863	319 c->close = close;
adamc@863	320 }
adamc@667	321
adamc@682	322 pthread_mutex_unlock(&c->lock);
adamc@667	323 }
adamc@667	324
adamc@682	325 static void free_client(client *c) {
adamc@682	326 c->mode = UNUSED;
adamc@682	327 c->pass = -1;
adamc@667	328
adamc@682	329 c->next = clients_free;
adamc@682	330 clients_free = c;
adamc@667	331 }
adamc@667	332
adamc@682	333 static uw_Basis_channel new_channel(client *c) {
adamc@682	334 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	335 return ch;
adamc@668	336 }
adamc@668	337
adam@1447	338 static void client_send(client c, uw_buffer msg, const char *script, int script_len) {
adamc@685	339 pthread_mutex_lock(&c->lock);
adamc@671	340
adamc@682	341 if (c->sock != -1) {
adamc@863	342 c->send(c->sock, on_success, strlen(on_success));
adamc@863	343 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1447	344 if (script_len > 0) {
adam@1447	345 c->send(c->sock, "E\n", 2);
adam@1447	346 c->send(c->sock, script, script_len);
adam@1447	347 c->send(c->sock, "\n", 1);
adam@1447	348 }
adam@1369	349 c->send(c->sock, msg->start, uw_buffer_used(msg));
adamc@863	350 c->close(c->sock);
adamc@682	351 c->sock = -1;
adam@1665	352 } else if (uw_buffer_append(&c->msgs, msg->start, uw_buffer_used(msg)))
adamc@1113	353 fprintf(stderr, "Client message buffer size exceeded");
adamc@671	354
adamc@685	355 pthread_mutex_unlock(&c->lock);
adamc@668	356 }
adamc@668	357
adamc@668	358
adamc@668	359 // Global entry points
adamc@668	360
adamc@1164	361 extern void uw_global_custom();
adamc@1104	362 extern void uw_init_crypto();
adamc@1104	363
adamc@668	364 void uw_global_init() {
adamc@668	365 clients = malloc(0);
adamc@1104	366
adamc@1164	367 uw_global_custom();
adamc@1104	368 uw_init_crypto();
adamc@1094	369 }
adamc@1094	370
adamc@1094	371 void uw_app_init(uw_app *app) {
adamc@1094	372 app->client_init();
adamc@668	373 }
adamc@668	374
adam@1332	375 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114	376
adamc@668	377
adamc@667	378 // Single-request state
adamc@667	379
adamc@323	380 typedef struct regions {
adamc@323	381 struct regions *next;
adamc@323	382 } regions;
adamc@323	383
adamc@425	384 typedef struct {
adamc@425	385 void (func)(void);
adamc@425	386 void *arg;
adamc@425	387 } cleanup;
adamc@425	388
adamc@671	389 typedef struct {
adamc@682	390 unsigned client;
adam@1369	391 uw_buffer msgs;
adamc@682	392 } delta;
adamc@671	393
adamc@737	394 typedef enum {
adamc@759	395 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	396 } input_kind;
adamc@737	397
adamc@756	398 typedef struct input {
adamc@737	399 input_kind kind;
adamc@737	400 union {
adamc@737	401 char *normal;
adamc@739	402 uw_Basis_file file;
adamc@756	403 struct {
adamc@759	404 struct input fields, parent;
adamc@756	405 } subform;
adamc@759	406 struct {
adamc@759	407 struct input entries, parent;
adamc@759	408 } subforms;
adamc@759	409 struct {
adamc@759	410 struct input fields, next, *parent;
adamc@759	411 } entry;
adamc@737	412 } data;
adamc@737	413 } input;
adamc@737	414
adamc@771	415 typedef struct {
adamc@771	416 void *data;
adam@1327	417 uw_callback commit, rollback;
adam@1327	418 uw_callback_with_retry free;
adamc@771	419 } transactional;
adamc@771	420
adamc@1061	421 typedef struct {
adamc@1061	422 char *name;
adamc@1061	423 void *data;
adamc@1061	424 void (free)(void);
adamc@1061	425 } global;
adamc@1061	426
adamc@311	427 struct uw_context {
adamc@1094	428 uw_app *app;
adam@1446	429 int id;
adamc@1094	430
adamc@854	431 char (get_header)(void , const char );
adamc@854	432 void *get_header_data;
adamc@457	433
adam@1799	434 char (get_env)(void , const char );
adam@1799	435 void *get_env_data;
adam@1799	436
adam@1369	437 uw_buffer outHeaders, page, heap, script;
adam@1451	438 int allowed_to_return_indirectly, returning_indirectly;
adamc@759	439 input inputs, subinputs, *cur_container;
adamc@1094	440 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	441
adam@1446	442 unsigned long long source_count;
adamc@562	443
adamc@272	444 void *db;
adam@1931	445 int transaction_started;
adamc@272	446
adamc@167	447 jmp_buf jmp_buf;
adamc@167	448
adamc@323	449 regions *regions;
adamc@323	450
adamc@425	451 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	452
adamc@1094	453 const char *script_header;
adamc@643	454
adam@2056	455 int needs_push, needs_sig, could_write_db, at_most_one_query;
adamc@693	456
adamc@682	457 size_t n_deltas, used_deltas;
adamc@682	458 delta *deltas;
adamc@671	459
adamc@682	460 client *client;
adamc@682	461
adamc@771	462 transactional *transactionals;
adamc@771	463 size_t n_transactionals, used_transactionals;
adamc@771	464
adamc@1061	465 global *globals;
adamc@1061	466 size_t n_globals;
adamc@1061	467
adamc@1066	468 char *current_url;
adamc@1066	469
adamc@1114	470 int deadline;
adamc@1114	471
adamc@1121	472 void *client_data;
adamc@1121	473
grrwlf@1997	474 uw_loggers *loggers;
adam@1334	475
adam@1386	476 int isPost, hasPostBody;
adam@1347	477 uw_Basis_postBody postBody;
adam@1370	478 uw_Basis_string queryString;
adam@1347	479
adam@1556	480 unsigned nextId;
adam@1556	481
adam@1782	482 int amInitializing;
adam@1782	483
adamc@167	484 char error_message[ERROR_BUF_LEN];
adam@1877	485
adam@1877	486 int usedSig, needsResig;
adam@1949	487
adam@1949	488 char *output_buffer;
adam@1949	489 size_t output_buffer_size;
adam@2073	490
adam@2073	491 int remoteSock;
adamc@117	492 };
adamc@117	493
adamc@1113	494 size_t uw_headers_max = SIZE_MAX;
adamc@1113	495 size_t uw_page_max = SIZE_MAX;
adamc@1113	496 size_t uw_heap_max = SIZE_MAX;
adamc@1113	497 size_t uw_script_max = SIZE_MAX;
adamc@1113	498
grrwlf@1997	499 uw_context uw_init(int id, uw_loggers *lg) {
adamc@311	500 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	501
adamc@1094	502 ctx->app = NULL;
adam@1446	503 ctx->id = id;
adamc@1094	504
adamc@854	505 ctx->get_header = NULL;
adamc@854	506 ctx->get_header_data = NULL;
adamc@457	507
adam@1799	508 ctx->get_env = NULL;
adam@1799	509 ctx->get_env_data = NULL;
adam@1799	510
adam@1413	511 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413	512 ctx->outHeaders.start[0] = 0;
adam@1413	513 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413	514 ctx->page.start[0] = 0;
adam@1451	515 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	516 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369	517 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667	518 ctx->script.start[0] = 0;
adamc@136	519
adamc@1094	520 ctx->inputs = malloc(0);
adamc@759	521 ctx->cur_container = NULL;
adamc@756	522 ctx->subinputs = malloc(0);
adamc@1094	523 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	524
adamc@272	525 ctx->db = NULL;
adam@1931	526 ctx->transaction_started = 0;
adamc@272	527
adamc@323	528 ctx->regions = NULL;
adamc@323	529
adamc@425	530 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	531
adamc@643	532 ctx->script_header = "";
adamc@693	533 ctx->needs_push = 0;
adamc@736	534 ctx->needs_sig = 0;
adam@1936	535 ctx->could_write_db = 1;
adam@2056	536 ctx->at_most_one_query = 0;
adamc@1104	537
adamc@565	538 ctx->source_count = 0;
adamc@562	539
adamc@682	540 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	541 ctx->deltas = malloc(0);
adamc@671	542
adamc@700	543 ctx->client = NULL;
adamc@700	544
adamc@700	545 ctx->error_message[0] = 0;
adamc@700	546
adamc@771	547 ctx->transactionals = malloc(0);
adamc@771	548 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	549
adamc@1061	550 ctx->globals = malloc(0);
adamc@1061	551 ctx->n_globals = 0;
adamc@1061	552
adamc@1066	553 ctx->current_url = "";
adamc@1066	554
adamc@1114	555 ctx->deadline = INT_MAX;
adamc@1114	556
adamc@1121	557 ctx->client_data = uw_init_client_data();
adamc@1121	558
grrwlf@1997	559 ctx->loggers = lg;
adam@1334	560
adam@1386	561 ctx->isPost = ctx->hasPostBody = 0;
adam@1347	562
adam@1370	563 ctx->queryString = NULL;
adam@1370	564
adam@1556	565 ctx->nextId = 0;
adam@1556	566
adam@1782	567 ctx->amInitializing = 0;
adam@1782	568
adam@1877	569 ctx->usedSig = 0;
adam@1877	570 ctx->needsResig = 0;
adam@1877	571
adam@1949	572 ctx->output_buffer = malloc(1);
adam@1949	573 ctx->output_buffer_size = 1;
adam@1949	574
adam@2073	575 ctx->remoteSock = -1;
adam@2073	576
adamc@117	577 return ctx;
adamc@106	578 }
adamc@106	579
adamc@1113	580 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	581
adamc@1121	582 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	583 return ctx->app;
adamc@1121	584 }
adamc@1121	585
adamc@1113	586 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	587 ctx->app = app;
adamc@1094	588
adamc@1105	589 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	590 if (app->inputs_len > uw_inputs_max)
adamc@1113	591 return 1;
adamc@1113	592
adamc@1094	593 ctx->sz_inputs = app->inputs_len;
adamc@1094	594 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	595 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	596 }
adamc@1134	597
adamc@1134	598 return 0;
adamc@1094	599 }
adamc@1094	600
adamc@1121	601 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	602 uw_copy_client_data(ctx->client_data, data);
adamc@1121	603 }
adamc@1121	604
adamc@311	605 void uw_set_db(uw_context ctx, void *db) {
adamc@272	606 ctx->db = db;
adamc@272	607 }
adamc@272	608
adamc@311	609 void *uw_get_db(uw_context ctx) {
adamc@272	610 return ctx->db;
adamc@272	611 }
adamc@272	612
grrwlf@1997	613
grrwlf@1997	614 uw_loggers* uw_get_loggers(struct uw_context *ctx) {
grrwlf@1997	615 return ctx->loggers;
grrwlf@1997	616 }
grrwlf@1997	617
adamc@311	618 void uw_free(uw_context ctx) {
adamc@671	619 size_t i;
adamc@671	620
adam@1369	621 uw_buffer_free(&ctx->outHeaders);
adam@1369	622 uw_buffer_free(&ctx->script);
adam@1369	623 uw_buffer_free(&ctx->page);
adam@1369	624 uw_buffer_free(&ctx->heap);
adamc@144	625 free(ctx->inputs);
adamc@756	626 free(ctx->subinputs);
adamc@425	627 free(ctx->cleanup);
adamc@771	628 free(ctx->transactionals);
adamc@1121	629 uw_free_client_data(ctx->client_data);
adamc@671	630
adamc@682	631 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	632 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	633 free(ctx->deltas);
adamc@671	634
adamc@1061	635 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	636 if (ctx->globals[i].free)
adamc@1089	637 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	638 free(ctx->globals);
adamc@1061	639
adam@1949	640 free(ctx->output_buffer);
adam@1949	641
adamc@136	642 free(ctx);
adamc@136	643 }
adamc@136	644
adamc@562	645 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	646 uw_buffer_reset(&ctx->outHeaders);
adam@1369	647 uw_buffer_reset(&ctx->script);
adamc@667	648 ctx->script.start[0] = 0;
adam@1369	649 uw_buffer_reset(&ctx->page);
adam@1451	650 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	651 uw_buffer_reset(&ctx->heap);
adamc@323	652 ctx->regions = NULL;
adamc@425	653 ctx->cleanup_front = ctx->cleanup;
adamc@682	654 ctx->used_deltas = 0;
adamc@682	655 ctx->client = NULL;
adamc@759	656 ctx->cur_container = NULL;
adamc@771	657 ctx->used_transactionals = 0;
adamc@1117	658 ctx->script_header = "";
adam@1370	659 ctx->queryString = NULL;
adam@1556	660 ctx->nextId = 0;
adam@1782	661 ctx->amInitializing = 0;
adam@1877	662 ctx->usedSig = 0;
adam@1877	663 ctx->needsResig = 0;
adam@2073	664 ctx->remoteSock = -1;
adamc@167	665 }
adamc@167	666
adamc@562	667 void uw_reset_keep_request(uw_context ctx) {
adamc@562	668 uw_reset_keep_error_message(ctx);
adamc@562	669 ctx->error_message[0] = 0;
adamc@167	670 }
adamc@167	671
adamc@311	672 void uw_reset(uw_context ctx) {
adamc@311	673 uw_reset_keep_request(ctx);
adamc@1105	674 if (ctx->app)
adamc@1105	675 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	676 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461	677 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adam@1943	678 ctx->transaction_started = 0;
adamc@144	679 }
adamc@144	680
adamc@311	681 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	682 int r = setjmp(ctx->jmp_buf);
adamc@272	683
adamc@1105	684 if (r == 0 && ctx->app)
adamc@1094	685 ctx->app->db_init(ctx);
adamc@272	686
adamc@272	687 return r;
adamc@272	688 }
adamc@272	689
adamc@1118	690 void uw_close(uw_context ctx) {
adamc@1118	691 ctx->app->db_close(ctx);
adamc@1118	692 }
adamc@1118	693
adam@1446	694 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	695 return ctx->get_header(ctx->get_header_data, h);
adam@1446	696 }
adam@1446	697
adamc@854	698 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	699 ctx->get_header = get_header;
adamc@854	700 ctx->get_header_data = get_header_data;
adamc@742	701 }
adamc@742	702
adam@1799	703 void uw_set_env(uw_context ctx, char (get_env)(void , const char ), void *get_env_data) {
adam@1799	704 ctx->get_env = get_env;
adam@1799	705 ctx->get_env_data = get_env_data;
adam@1799	706 }
adam@1799	707
adamc@801	708 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	709 va_list ap;
adamc@801	710 va_start(ap, fmt);
adamc@801	711
adamc@801	712 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	713 }
adamc@801	714
adamc@1131	715 int uw_has_error(uw_context ctx) {
adamc@1131	716 return ctx->error_message[0] != 0;
adamc@1131	717 }
adamc@1131	718
adamc@311	719 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	720 cleanup *cl;
adamc@425	721
adamc@167	722 va_list ap;
adamc@167	723 va_start(ap, fmt);
adamc@167	724
adamc@167	725 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	726
adamc@425	727 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	728 cl->func(cl->arg);
adamc@425	729
adamc@425	730 ctx->cleanup_front = ctx->cleanup;
adamc@425	731
adamc@190	732 longjmp(ctx->jmp_buf, fk);
adamc@167	733 }
adamc@167	734
adamc@1113	735 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	736
adamc@425	737 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	738 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	739 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	740 if (len == 0)
adamc@425	741 newLen = 1;
adamc@425	742 else
adamc@428	743 newLen = len * 2;
adamc@1113	744
adamc@1134	745 if (newLen > uw_cleanup_max) {
adamc@1113	746 if (len+1 <= uw_cleanup_max)
adamc@1113	747 newLen = uw_cleanup_max;
adamc@1113	748 else
adamc@1113	749 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	750 }
adamc@1113	751
adamc@470	752 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	753 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	754 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	755 }
adamc@425	756
adamc@425	757 ctx->cleanup_front->func = func;
adamc@425	758 ctx->cleanup_front->arg = arg;
adamc@425	759 ++ctx->cleanup_front;
adamc@425	760 }
adamc@425	761
adam@1444	762 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	763
adamc@682	764 void uw_login(uw_context ctx) {
adam@1942	765 char id_s, pass_s;
adam@1942	766
adam@1942	767 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adam@1942	768 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adam@1942	769 unsigned id = atoi(id_s);
adam@1942	770 int pass = atoi(pass_s);
adam@1942	771 client *c = find_client(id);
adam@1942	772
adam@1942	773 if (c == NULL)
adam@1942	774 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	775 else {
adamc@685	776 use_client(c);
adamc@682	777 ctx->client = c;
adam@1942	778
adam@1942	779 if (c->mode != USED)
adam@1942	780 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adam@1942	781 if (c->pass != pass)
adam@1942	782 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@864	783 }
adam@1942	784 } else if (ctx->needs_push) {
adam@1942	785 client *c = new_client();
adam@1942	786
adam@1942	787 if (c == NULL)
adam@1942	788 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adam@1942	789
adam@1942	790 use_client(c);
adam@1942	791 uw_copy_client_data(c->data, ctx->client_data);
adam@1942	792 ctx->client = c;
adamc@682	793 }
adamc@682	794 }
adamc@682	795
adamc@671	796 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	797 int r = setjmp(ctx->jmp_buf);
adamc@671	798
adam@1931	799 if (r == 0)
adam@1931	800 ctx->app->handle(ctx, path);
adam@1931	801
adam@1931	802 return r;
adam@1931	803 }
adam@1931	804
adam@1931	805 void uw_ensure_transaction(uw_context ctx) {
adam@2056	806 if (!ctx->transaction_started && !ctx->at_most_one_query) {
adam@1936	807 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adamc@671	808 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1931	809 ctx->transaction_started = 1;
adamc@671	810 }
adamc@671	811 }
adamc@671	812
adamc@772	813 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	814 if (ctx->client == NULL)
adamc@682	815 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	816
adamc@682	817 return ctx->client->id;
adamc@682	818 }
adamc@682	819
adamc@425	820 void uw_pop_cleanup(uw_context ctx) {
adamc@425	821 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	822 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	823
adamc@425	824 --ctx->cleanup_front;
adamc@425	825 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	826 }
adamc@425	827
adamc@311	828 char *uw_error_message(uw_context ctx) {
adamc@167	829 return ctx->error_message;
adamc@167	830 }
adamc@167	831
adamc@1115	832 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	833 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	834 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	835 }
adamc@1115	836
adamc@759	837 static input *INP(uw_context ctx) {
adamc@759	838 if (ctx->cur_container == NULL)
adamc@759	839 return ctx->inputs;
adamc@759	840 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	841 return ctx->cur_container->data.subform.fields;
adamc@759	842 else if (ctx->cur_container->kind == ENTRY)
adamc@759	843 return ctx->cur_container->data.entry.fields;
adamc@759	844 else
adamc@760	845 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	846 }
adamc@759	847
adamc@760	848 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	849 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	850 *ptr += new_start - old_start;
adamc@760	851 }
adamc@760	852
adamc@760	853 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	854 switch (x->kind) {
adamc@759	855 case SUBFORM:
adamc@760	856 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	857 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	858 break;
adamc@759	859 case SUBFORMS:
adamc@760	860 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	861 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	862 break;
adamc@759	863 case ENTRY:
adamc@760	864 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	865 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	866 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	867 break;
adamc@1134	868 default:
adamc@1134	869 break;
phurst@1981	870 }
adamc@759	871 }
adamc@759	872
adamc@1113	873 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	874
adamc@759	875 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	876 size_t i;
adamc@759	877 input *r;
adamc@759	878
adamc@759	879 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	880 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	881 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	882
adamc@759	883 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	884
adamc@760	885 if (ctx->subinputs != new_subinputs) {
adamc@760	886 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	887 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	888 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	889 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	890
adamc@760	891 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	892
adamc@760	893 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	894 ctx->subinputs = new_subinputs;
adamc@760	895 }
adamc@759	896 }
adamc@759	897
adamc@759	898 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	899
adamc@759	900 for (i = 0; i < len; ++i)
adam@1474	901 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	902
adamc@759	903 return r;
adamc@759	904 }
adamc@756	905
adamc@801	906 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	907 //printf("Input name %s\n", name);
adamc@1038	908
adamc@756	909 if (!strcasecmp(name, ".b")) {
adamc@1094	910 int n = ctx->app->input_num(value);
adamc@756	911 input *inps;
adamc@756	912
adamc@801	913 if (n < 0) {
adam@1444	914 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	915 return -1;
adamc@801	916 }
adamc@801	917
adamc@1094	918 if (n >= ctx->app->inputs_len) {
adam@1444	919 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	920 return -1;
adamc@801	921 }
adamc@756	922
adamc@1094	923 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	924
adamc@759	925 INP(ctx)[n].kind = SUBFORM;
adamc@759	926 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	927 INP(ctx)[n].data.subform.fields = inps;
adamc@759	928 ctx->cur_container = &INP(ctx)[n];
adamc@756	929 } else if (!strcasecmp(name, ".e")) {
adamc@756	930 input *tmp;
adamc@756	931
adamc@801	932 if (ctx->cur_container == NULL) {
adamc@801	933 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	934 return -1;
adamc@801	935 }
adamc@756	936
adamc@759	937 tmp = ctx->cur_container;
adamc@759	938 switch (tmp->kind) {
adamc@759	939 case SUBFORM:
adamc@759	940 ctx->cur_container = tmp->data.subform.parent;
adamc@759	941 tmp->data.subform.parent = NULL;
adamc@759	942 break;
adamc@759	943 case SUBFORMS:
adamc@759	944 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	945 tmp->data.subforms.parent = NULL;
adamc@759	946 break;
adamc@759	947 case ENTRY:
adamc@759	948 ctx->cur_container = tmp->data.entry.parent;
adamc@759	949 break;
adamc@759	950 default:
adamc@801	951 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	952 return -1;
adamc@759	953 }
adamc@759	954 } else if (!strcasecmp(name, ".s")) {
adamc@1094	955 int n = ctx->app->input_num(value);
adamc@759	956
adamc@801	957 if (n < 0) {
adam@1444	958 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	959 return -1;
adamc@801	960 }
adamc@801	961
adamc@1094	962 if (n >= ctx->app->inputs_len) {
adam@1444	963 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	964 return -1;
adamc@801	965 }
adamc@759	966
adamc@759	967 INP(ctx)[n].kind = SUBFORMS;
adamc@759	968 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	969 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	970 ctx->cur_container = &INP(ctx)[n];
adamc@759	971 } else if (!strcasecmp(name, ".i")) {
adamc@759	972 input *inps;
adamc@759	973
adamc@801	974 if (!ctx->cur_container) {
adamc@801	975 uw_set_error(ctx, "New entry without container");
adamc@801	976 return -1;
adamc@801	977 }
adamc@801	978
adamc@801	979 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	980 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	981 return -1;
adamc@801	982 }
adamc@759	983
adamc@1094	984 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	985
adamc@759	986 inps->kind = ENTRY;
adamc@759	987 inps->data.entry.parent = ctx->cur_container;
adamc@759	988 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	989 ctx->cur_container->data.subforms.entries = inps;
adamc@759	990
adamc@759	991 inps->data.entry.fields = inps+1;
adamc@759	992 ctx->cur_container = inps;
adamc@756	993 } else {
adamc@1094	994 int n = ctx->app->input_num(name);
adamc@756	995
adam@1384	996 if (n < 0)
adam@1384	997 return 0;
adamc@801	998
adamc@1094	999 if (n >= ctx->app->inputs_len) {
adam@1444	1000 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	1001 return -1;
adamc@801	1002 }
adamc@756	1003
adamc@756	1004 INP(ctx)[n].kind = NORMAL;
adamc@756	1005 INP(ctx)[n].data.normal = value;
adamc@756	1006 }
adamc@801	1007
adamc@801	1008 return 0;
adamc@144	1009 }
adamc@144	1010
adamc@311	1011 char *uw_get_input(uw_context ctx, int n) {
adamc@169	1012 if (n < 0)
adamc@311	1013 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1014 if (n >= ctx->app->inputs_len)
adamc@311	1015 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1016
adamc@756	1017 switch (INP(ctx)[n].kind) {
adamc@737	1018 case UNSET:
adamc@737	1019 return NULL;
adamc@739	1020 case FIL:
adamc@739	1021 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1022 case SUBFORM:
adamc@756	1023 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1024 case SUBFORMS:
adamc@759	1025 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1026 case ENTRY:
adamc@759	1027 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1028 case NORMAL:
adamc@756	1029 return INP(ctx)[n].data.normal;
adamc@737	1030 default:
adamc@737	1031 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1032 }
adamc@138	1033 }
adamc@138	1034
adamc@311	1035 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	1036 if (n < 0)
adamc@311	1037 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1038 if (n >= ctx->app->inputs_len)
adamc@311	1039 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1040
adamc@756	1041 switch (INP(ctx)[n].kind) {
adamc@737	1042 case UNSET:
adamc@737	1043 return "";
adamc@739	1044 case FIL:
adamc@739	1045 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1046 case SUBFORM:
adamc@756	1047 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1048 case SUBFORMS:
adamc@759	1049 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1050 case ENTRY:
adamc@759	1051 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1052 case NORMAL:
adamc@756	1053 return INP(ctx)[n].data.normal;
adamc@737	1054 default:
adamc@737	1055 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1056 }
adamc@737	1057 }
adamc@737	1058
adamc@801	1059 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1060 int n = ctx->app->input_num(name);
adamc@737	1061
adamc@801	1062 if (n < 0) {
adam@2054	1063 uw_set_error(ctx, "Bad file input name");
adamc@801	1064 return -1;
adamc@801	1065 }
adamc@801	1066
adamc@1094	1067 if (n >= ctx->app->inputs_len) {
adam@2054	1068 uw_set_error(ctx, "For file input name, index %d is out of range", n);
adamc@801	1069 return -1;
adamc@801	1070 }
adamc@737	1071
adamc@739	1072 ctx->inputs[n].kind = FIL;
adamc@739	1073 ctx->inputs[n].data.file = f;
adamc@801	1074
adamc@801	1075 return 0;
adamc@737	1076 }
adamc@737	1077
adamc@739	1078 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1079
adamc@739	1080 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1081 if (n < 0)
adamc@737	1082 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1083 if (n >= ctx->app->inputs_len)
adamc@737	1084 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1085
adamc@756	1086 switch (INP(ctx)[n].kind) {
adamc@737	1087 case UNSET:
adamc@737	1088 {
adamc@739	1089 char *data = uw_malloc(ctx, 0);
adamc@740	1090 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1091 return f;
adamc@737	1092 }
adamc@739	1093 case FIL:
adamc@756	1094 return INP(ctx)[n].data.file;
adamc@737	1095 case NORMAL:
adamc@737	1096 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1097 case SUBFORM:
adamc@756	1098 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1099 case SUBFORMS:
adamc@759	1100 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1101 case ENTRY:
adamc@759	1102 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1103 default:
adamc@737	1104 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1105 }
adamc@190	1106 }
adamc@190	1107
adamc@756	1108 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1109 if (n < 0)
adamc@756	1110 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1111 if (n >= ctx->app->inputs_len)
adamc@756	1112 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1113
adamc@756	1114 switch (INP(ctx)[n].kind) {
adamc@756	1115 case UNSET:
adamc@756	1116 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1117 case FIL:
adamc@756	1118 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1119 case NORMAL:
adamc@756	1120 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1121 case SUBFORMS:
adamc@759	1122 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1123 case ENTRY:
adamc@759	1124 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1125 case SUBFORM:
adamc@759	1126 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1127 ctx->cur_container = &INP(ctx)[n];
adamc@756	1128 return;
adamc@756	1129 default:
adamc@756	1130 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1131 }
adamc@756	1132 }
adamc@756	1133
adamc@756	1134 void uw_leave_subform(uw_context ctx) {
adamc@756	1135 input *tmp;
adamc@756	1136
adamc@759	1137 if (ctx->cur_container == NULL)
adamc@756	1138 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1139
adamc@759	1140 tmp = ctx->cur_container;
adamc@759	1141 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1142 tmp->data.subform.parent = NULL;
adamc@759	1143 }
adamc@759	1144
adamc@759	1145 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1146 input *inps;
adamc@759	1147
adamc@759	1148 if (n < 0)
adamc@759	1149 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1150 if (n >= ctx->app->inputs_len)
adamc@759	1151 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1152
adamc@759	1153 switch (INP(ctx)[n].kind) {
adamc@759	1154 case UNSET:
adamc@759	1155 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1156 case FIL:
adamc@759	1157 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1158 case NORMAL:
adamc@759	1159 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1160 case SUBFORM:
adamc@759	1161 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1162 case ENTRY:
adamc@759	1163 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1164 case SUBFORMS:
adamc@759	1165 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1166 if (inps) {
adamc@759	1167 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1168 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1169 return 1;
adamc@759	1170 } else
adamc@759	1171 return 0;
adamc@759	1172 default:
adamc@759	1173 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1174 }
adamc@759	1175 }
adamc@759	1176
adamc@759	1177 int uw_next_entry(uw_context ctx) {
adamc@759	1178 if (ctx->cur_container == NULL)
adamc@759	1179 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1180
adamc@759	1181 switch (ctx->cur_container->kind) {
adamc@759	1182 case UNSET:
adamc@759	1183 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1184 case FIL:
adamc@759	1185 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1186 case NORMAL:
adamc@759	1187 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1188 case SUBFORM:
adamc@759	1189 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1190 case SUBFORMS:
adamc@759	1191 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1192 case ENTRY:
adamc@759	1193 if (ctx->cur_container->data.entry.next) {
adamc@759	1194 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1195 return 1;
adamc@759	1196 } else {
adamc@759	1197 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1198 return 0;
adamc@759	1199 }
adamc@759	1200 default:
adamc@759	1201 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1202 }
adamc@756	1203 }
adamc@756	1204
adamc@643	1205 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1206 ctx->script_header = s;
adamc@643	1207 }
adamc@643	1208
adamc@1094	1209 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1210 return ctx->app->url_prefix;
adamc@667	1211 }
adamc@667	1212
adamc@693	1213 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1214 ctx->needs_push = n;
adamc@693	1215 }
adamc@693	1216
adamc@736	1217 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1218 ctx->needs_sig = n;
adamc@736	1219 }
adamc@736	1220
adam@1936	1221 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936	1222 ctx->could_write_db = n;
adam@1936	1223 }
adam@1936	1224
adam@2056	1225 void uw_set_at_most_one_query(uw_context ctx, int n) {
adam@2056	1226 ctx->at_most_one_query = n;
adam@2056	1227 }
adam@2056	1228
adamc@667	1229
adam@1369	1230 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1231 if (b->back - b->front < extra) {
adamc@666	1232 size_t desired = b->front - b->start + extra, next;
adamc@136	1233 char *new_heap;
adamc@136	1234
adamc@666	1235 next = b->back - b->start;
adamc@317	1236 if (next == 0)
adamc@317	1237 next = 1;
adamc@317	1238 for (; next < desired; next *= 2);
adamc@136	1239
adamc@1134	1240 if (next > b->max) {
adamc@1113	1241 if (desired <= b->max)
adamc@1113	1242 next = desired;
adamc@1113	1243 else
adamc@1113	1244 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1245 }
adamc@1113	1246
adamc@666	1247 new_heap = realloc(b->start, next);
adamc@666	1248 b->front = new_heap + (b->front - b->start);
adamc@666	1249 b->back = new_heap + next;
adamc@136	1250
adamc@667	1251 if (new_heap != b->start) {
adamc@666	1252 b->start = new_heap;
adam@1389	1253 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1254 }
adamc@136	1255
adamc@666	1256 b->start = new_heap;
adamc@136	1257 }
adamc@136	1258 }
adamc@136	1259
adamc@832	1260 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1261 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1262 }
adamc@666	1263
adamc@832	1264 char *uw_heap_front(uw_context ctx) {
adamc@832	1265 return ctx->heap.front;
adamc@832	1266 }
adamc@832	1267
adamc@832	1268 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1269 ctx->heap.front = fr;
adamc@832	1270 }
adamc@832	1271
adam@1782	1272 void uw_begin_initializing(uw_context ctx) {
adam@1782	1273 ctx->amInitializing = 1;
adam@1782	1274 }
adam@1782	1275
adam@1782	1276 void uw_end_initializing(uw_context ctx) {
adam@1782	1277 ctx->amInitializing = 0;
adam@1782	1278 }
adam@1782	1279
adam@2013	1280 static void align_heap(uw_context ctx) {
adam@2013	1281 size_t posn = ctx->heap.front - ctx->heap.start;
adam@2013	1282
adam@2017	1283 if (posn % sizeof(void *) != 0) {
adam@2017	1284 size_t bump = sizeof(void ) - posn % sizeof(void );
adam@2013	1285 uw_check_heap(ctx, bump);
adam@2013	1286 ctx->heap.front += bump;
adam@2013	1287 }
adam@2013	1288 }
adam@2013	1289
adamc@311	1290 void *uw_malloc(uw_context ctx, size_t len) {
adam@2013	1291 // On some architectures, it's important that all word-sized memory accesses
adam@2013	1292 // be to word-aligned addresses, so we'll do a little bit of extra work here
adam@2013	1293 // in anticipation of a possible word-aligned access to the address we'll
adam@2013	1294 // return.
adam@2013	1295
adamc@136	1296 void *result;
adamc@136	1297
adam@1782	1298 if (ctx->amInitializing) {
adam@2017	1299 int error = posix_memalign(&result, sizeof(void *), len);
adam@2013	1300
adam@2013	1301 if (!error)
adam@1782	1302 return result;
adam@1782	1303 else
adam@2013	1304 uw_error(ctx, FATAL, "uw_malloc: posix_memalign() returns %d", error);
adam@1782	1305 } else {
adam@2013	1306 align_heap(ctx);
adam@2013	1307
adam@1782	1308 uw_check_heap(ctx, len);
adam@1782	1309
adam@1782	1310 result = ctx->heap.front;
adam@1782	1311 ctx->heap.front += len;
adam@1782	1312 return result;
adam@1782	1313 }
adamc@117	1314 }
adamc@117	1315
adamc@323	1316 void uw_begin_region(uw_context ctx) {
adam@2013	1317 align_heap(ctx);
adam@2013	1318
adamc@666	1319 regions r = (regions ) ctx->heap.front;
adamc@323	1320
adamc@323	1321 uw_check_heap(ctx, sizeof(regions));
adamc@323	1322
adamc@666	1323 ctx->heap.front += sizeof(regions);
adamc@323	1324
adamc@323	1325 r->next = ctx->regions;
adamc@323	1326 ctx->regions = r;
adamc@323	1327 }
adamc@323	1328
adamc@323	1329 void uw_end_region(uw_context ctx) {
adamc@323	1330 regions *r = ctx->regions;
adamc@323	1331
adamc@323	1332 if (r == NULL)
adamc@323	1333 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1334
adamc@666	1335 ctx->heap.front = (char *) r;
adamc@323	1336 ctx->regions = r->next;
adamc@323	1337 }
adamc@323	1338
adamc@324	1339 void uw_memstats(uw_context ctx) {
adam@1369	1340 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1341 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1342 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1343 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1344 }
adamc@324	1345
adam@1915	1346 int uw_pagelen(uw_context ctx) {
adam@1915	1347 return ctx->page.front - ctx->page.start;
adam@1915	1348 }
adam@1915	1349
adamc@311	1350 int uw_send(uw_context ctx, int sock) {
adam@1949	1351 size_t target_length = (ctx->outHeaders.front - ctx->outHeaders.start) + 2 + (ctx->page.front - ctx->page.start);
adam@1949	1352
adam@1949	1353 if (ctx->output_buffer_size < target_length) {
adam@1949	1354 do {
adam@1949	1355 ctx->output_buffer_size *= 2;
adam@1949	1356 } while (ctx->output_buffer_size < target_length);
adam@1949	1357 ctx->output_buffer = realloc(ctx->output_buffer, ctx->output_buffer_size);
adam@1949	1358 }
adam@1949	1359
adam@1949	1360 memcpy(ctx->output_buffer, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adam@1949	1361 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start), "\r\n", 2);
adam@1949	1362 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start) + 2, ctx->page.start, ctx->page.front - ctx->page.start);
adam@1949	1363
adam@1949	1364 return uw_really_send(sock, ctx->output_buffer, target_length);
adamc@462	1365 }
adamc@462	1366
adamc@856	1367 int uw_print(uw_context ctx, int fd) {
adamc@856	1368 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1369
adamc@856	1370 if (n < 0)
adamc@856	1371 return n;
adamc@856	1372
adamc@856	1373 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1374
adamc@856	1375 if (n < 0)
adamc@856	1376 return n;
adamc@856	1377
adamc@856	1378 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1379 }
adamc@856	1380
adamc@860	1381 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1382 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1383
adamc@860	1384 if (n < 0)
adamc@860	1385 return n;
adamc@860	1386
adamc@860	1387 n = output(data, "\r\n", 2);
adamc@860	1388
adamc@860	1389 if (n < 0)
adamc@860	1390 return n;
adamc@860	1391
adamc@860	1392 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1393 }
adamc@860	1394
adamc@462	1395 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1396 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1397 }
adamc@462	1398
adamc@462	1399 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1400 int len = strlen(s);
adamc@462	1401
adamc@462	1402 uw_check_headers(ctx, len + 1);
adamc@666	1403 strcpy(ctx->outHeaders.front, s);
adamc@666	1404 ctx->outHeaders.front += len;
adamc@562	1405 }
adamc@562	1406
adam@1934	1407 int uw_has_contentLength(uw_context ctx) {
adam@1934	1408 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934	1409 }
adam@1934	1410
adamc@1110	1411 void uw_clear_headers(uw_context ctx) {
adam@1369	1412 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1413 }
adamc@1110	1414
adam@1932	1415 void uw_Basis_clear_page(uw_context ctx) {
adam@1932	1416 uw_buffer_reset(&ctx->page);
adam@1932	1417 }
adam@1932	1418
adamc@562	1419 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1420 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1421 }
adamc@562	1422
adamc@562	1423 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1424 int len = strlen(s);
adamc@562	1425
adamc@562	1426 uw_check_script(ctx, len + 1);
adamc@666	1427 strcpy(ctx->script.front, s);
adamc@666	1428 ctx->script.front += len;
adamc@562	1429 }
adamc@562	1430
adam@1446	1431 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1432 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1433 uw_write_script(ctx, "sig=\"");
adam@1671	1434 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1435 uw_write_script(ctx, "\";");
adam@1671	1436 }
adam@1671	1437
adam@1446	1438 return ctx->script.start;
adam@1446	1439 }
adam@1446	1440
adamc@695	1441 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1442 if (s[0] == 0)
adamc@695	1443 return "";
adamc@695	1444 else {
adamc@695	1445 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1446 sprintf(r, " onload='%s'", s);
adamc@695	1447 return r;
adamc@695	1448 }
adamc@695	1449 }
adamc@695	1450
adamc@1042	1451 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1452 if (ctx->script_header[0] == 0)
adamc@1042	1453 return "";
adamc@1042	1454 else {
vshabanoff@1763	1455 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763	1456 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042	1457 return r;
adamc@1042	1458 }
adamc@1042	1459 }
adamc@1042	1460
adamc@694	1461 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1462 if (ctx->client == NULL) {
adamc@736	1463 if (ctx->needs_sig) {
adamc@1094	1464 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1465 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1466 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1467 return r;
adamc@736	1468 }
adamc@736	1469 else
adamc@736	1470 return "";
adamc@736	1471 } else {
adamc@1094	1472 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1473 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1474 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1475 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1476 (ctx->isPost ? "true" : "false"),
adamc@682	1477 ctx->client->id,
adamc@682	1478 ctx->client->pass,
adamc@1094	1479 ctx->app->url_prefix,
adamc@1094	1480 ctx->app->timeout,
adamc@736	1481 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1482 sig,
adamc@736	1483 ctx->needs_sig ? "\";" : "");
adamc@679	1484 return r;
adamc@668	1485 }
adamc@667	1486 }
adamc@667	1487
adamc@574	1488 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1489 char r, s2;
adamc@574	1490
adam@1446	1491 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1492
adamc@666	1493 r = s2 = ctx->heap.front;
adamc@574	1494 *s2++ = '"';
adamc@574	1495
adamc@574	1496 for (; *s; s++) {
adam@1286	1497 unsigned char c = *s;
adamc@574	1498
adamc@574	1499 switch (c) {
adamc@574	1500 case '"':
adamc@574	1501 strcpy(s2, "\\\"");
adamc@574	1502 s2 += 2;
adamc@574	1503 break;
adamc@1027	1504 case '\'':
adamc@1027	1505 strcpy(s2, "\\047");
adamc@1027	1506 s2 += 4;
adamc@1027	1507 break;
adamc@574	1508 case '\\':
adamc@574	1509 strcpy(s2, "\\\\");
adamc@574	1510 s2 += 2;
adamc@574	1511 break;
adam@1457	1512 case '<':
adam@1457	1513 strcpy(s2, "\\074");
adam@1457	1514 s2 += 4;
adam@1457	1515 break;
adamc@574	1516 default:
adam@1286	1517 if (isprint((int)c) \|\| c >= 128)
adamc@574	1518 *s2++ = c;
adamc@574	1519 else {
adam@1429	1520 sprintf(s2, "\\%03o", c);
adamc@574	1521 s2 += 4;
adamc@574	1522 }
adamc@574	1523 }
adamc@574	1524 }
adamc@574	1525
adamc@574	1526 strcpy(s2, "\"");
adamc@910	1527 ctx->heap.front = s2 + 2;
adamc@574	1528 return r;
adamc@574	1529 }
adamc@574	1530
adam@1286	1531 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1532 unsigned char c = c1;
adamc@1025	1533 char r, s2;
adamc@1025	1534
adam@1446	1535 uw_check_heap(ctx, 7);
adamc@1025	1536
adamc@1025	1537 r = s2 = ctx->heap.front;
adamc@1025	1538 *s2++ = '"';
adamc@1025	1539
adamc@1025	1540 switch (c) {
adamc@1025	1541 case '"':
adamc@1025	1542 strcpy(s2, "\\\"");
adamc@1025	1543 s2 += 2;
adamc@1025	1544 break;
adamc@1027	1545 case '\'':
adamc@1027	1546 strcpy(s2, "\\047");
adamc@1027	1547 s2 += 4;
adamc@1027	1548 break;
adamc@1025	1549 case '\\':
adamc@1025	1550 strcpy(s2, "\\\\");
adamc@1025	1551 s2 += 2;
adamc@1025	1552 break;
adam@1457	1553 case '<':
adam@1457	1554 strcpy(s2, "\\074");
adam@1457	1555 s2 += 4;
adam@1457	1556 break;
adamc@1025	1557 default:
adam@1286	1558 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1559 *s2++ = c;
adamc@1025	1560 else {
adam@1429	1561 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1562 s2 += 4;
adamc@1025	1563 }
adamc@1025	1564 }
adamc@1025	1565
adamc@1025	1566 strcpy(s2, "\"");
adamc@1025	1567 ctx->heap.front = s2 + 2;
adamc@1025	1568 return r;
adamc@1025	1569 }
adamc@1025	1570
adamc@574	1571 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1572 char r, s2;
adamc@574	1573
adam@1446	1574 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1575
adamc@666	1576 r = s2 = ctx->script.front;
adamc@574	1577 *s2++ = '"';
adamc@574	1578
adamc@574	1579 for (; *s; s++) {
adam@1286	1580 unsigned char c = *s;
adamc@574	1581
adamc@574	1582 switch (c) {
adamc@577	1583 case '\'':
adamc@1027	1584 strcpy(s2, "\\");
adamc@574	1585 s2 += 2;
adamc@574	1586 break;
adamc@574	1587 case '\\':
adamc@574	1588 strcpy(s2, "\\\\");
adamc@574	1589 s2 += 2;
adamc@574	1590 break;
adam@1457	1591 case '<':
adam@1457	1592 strcpy(s2, "\\074");
adam@1457	1593 s2 += 4;
adam@1457	1594 break;
adamc@574	1595 default:
adam@1286	1596 if (isprint((int)c) \|\| c >= 128)
adamc@574	1597 *s2++ = c;
adamc@574	1598 else {
adam@1429	1599 sprintf(s2, "\\%03o", c);
adamc@574	1600 s2 += 4;
adamc@574	1601 }
adamc@574	1602 }
adamc@574	1603 }
adamc@574	1604
adamc@574	1605 strcpy(s2, "\"");
adamc@666	1606 ctx->script.front = s2 + 1;
adamc@574	1607 return r;
adamc@574	1608 }
adamc@574	1609
adamc@682	1610 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1611 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1612 return "null";
adamc@682	1613 else {
adamc@682	1614 int len;
adamc@682	1615 char *r;
adamc@682	1616
adamc@682	1617 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1618 r = ctx->heap.front;
adamc@682	1619 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1620 ctx->heap.front += len+1;
adamc@682	1621 return r;
adamc@682	1622 }
adamc@682	1623 }
adamc@682	1624
adam@1446	1625 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1626 int len;
adamc@577	1627 size_t s_len = strlen(s);
adamc@562	1628
grrwlf@1998	1629 if(ctx->id < 0)
grrwlf@1998	1630 uw_error(ctx, FATAL, "Attempt to create client source using inappropriate context");
grrwlf@1998	1631
adam@1446	1632 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1633 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1634 ctx->script.front += len;
adamc@666	1635 strcpy(ctx->script.front, s);
adamc@666	1636 ctx->script.front += s_len;
adamc@970	1637 strcpy(ctx->script.front, "));");
adamc@972	1638 ctx->script.front += 3;
adamc@562	1639
adam@1446	1640 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1641 return r;
adam@1446	1642 }
adam@1446	1643
adam@1446	1644 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1645 int len;
adamc@577	1646 size_t s_len = strlen(s);
adamc@577	1647
adam@1446	1648 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1649 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1650 ctx->script.front += len;
adamc@666	1651 strcpy(ctx->script.front, s);
adamc@666	1652 ctx->script.front += s_len;
adamc@970	1653 strcpy(ctx->script.front, "));");
adamc@972	1654 ctx->script.front += 3;
adamc@577	1655
adamc@577	1656 return uw_unit_v;
adamc@577	1657 }
adamc@577	1658
adamc@311	1659 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1660 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1661 }
adamc@117	1662
adamc@311	1663 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1664 *(ctx->page.front)++ = c;
adam@1413	1665 *ctx->page.front = 0;
adamc@117	1666 }
adamc@117	1667
adamc@311	1668 void uw_writec(uw_context ctx, char c) {
adam@1413	1669 uw_check(ctx, 2);
adamc@311	1670 uw_writec_unsafe(ctx, c);
adamc@117	1671 }
adamc@117	1672
adam@2085	1673 void uw_Basis_writec(uw_context ctx, char c) {
adam@2085	1674 uw_writec(ctx, c);
adam@2085	1675 }
adam@2085	1676
adamc@311	1677 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1678 int len = strlen(s);
adamc@666	1679 memcpy(ctx->page.front, s, len);
adamc@666	1680 ctx->page.front += len;
adamc@117	1681 }
adamc@117	1682
adamc@311	1683 void uw_write(uw_context ctx, const char* s) {
adamc@311	1684 uw_check(ctx, strlen(s) + 1);
adamc@311	1685 uw_write_unsafe(ctx, s);
adamc@666	1686 *ctx->page.front = 0;
adamc@102	1687 }
adamc@106	1688
adamc@311	1689 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1690 char *result;
adamc@136	1691 int len;
adamc@311	1692 uw_check_heap(ctx, INTS_MAX);
adamc@666	1693 result = ctx->heap.front;
adamc@276	1694 sprintf(result, "%lld%n", n, &len);
adamc@666	1695 ctx->heap.front += len+1;
adamc@136	1696 return result;
adamc@106	1697 }
adamc@106	1698
adamc@311	1699 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1700 char *result;
adamc@136	1701 int len;
adamc@311	1702 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1703 result = ctx->heap.front;
adam@1920	1704 sprintf(result, "%.16g%n", n, &len);
adamc@666	1705 ctx->heap.front += len+1;
adamc@136	1706 return result;
adamc@106	1707 }
adamc@106	1708
adamc@311	1709 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1710 int len = strlen(s);
adamc@136	1711 char result, p;
adamc@311	1712 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1713
adamc@666	1714 result = p = ctx->heap.front;
adamc@136	1715
adamc@136	1716 for (; *s; s++) {
adamc@1054	1717 unsigned char c = *s;
adamc@136	1718
adamc@136	1719 if (c == '"') {
adamc@136	1720 strcpy(p, """);
adamc@136	1721 p += 6;
adamc@136	1722 } else if (c == '&') {
adamc@136	1723 strcpy(p, "&");
adamc@136	1724 p += 5;
adamc@136	1725 }
adamc@1059	1726 else
adamc@136	1727 *p++ = c;
adamc@136	1728 }
adamc@136	1729
adamc@137	1730 *p++ = 0;
adamc@666	1731 ctx->heap.front = p;
adamc@136	1732 return result;
adamc@106	1733 }
adamc@106	1734
adamc@1011	1735 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1736 char result, p;
adamc@1011	1737 uw_check_heap(ctx, 7);
adamc@1011	1738
adamc@1011	1739 result = p = ctx->heap.front;
adamc@1011	1740
adamc@1011	1741 if (c == '"') {
adamc@1011	1742 strcpy(p, """);
adamc@1011	1743 p += 6;
adamc@1011	1744 } else if (c == '&') {
adamc@1011	1745 strcpy(p, "&");
adamc@1011	1746 p += 5;
adamc@1011	1747 }
adamc@1059	1748 else
adamc@1011	1749 *p++ = c;
adamc@1011	1750
adamc@1011	1751 *p++ = 0;
adamc@1011	1752 ctx->heap.front = p;
adamc@1011	1753 return result;
adamc@1011	1754 }
adamc@1011	1755
adamc@721	1756 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1757 return s;
adamc@721	1758 }
adamc@721	1759
adamc@311	1760 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1761 int len;
adamc@117	1762
adamc@666	1763 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1764 ctx->page.front += len;
adamc@106	1765 }
adamc@106	1766
adamc@428	1767 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1768 uw_check(ctx, INTS_MAX);
adamc@311	1769 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1770
adamc@428	1771 return uw_unit_v;
adamc@106	1772 }
adamc@106	1773
adamc@428	1774 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1775 int len;
adamc@117	1776
adamc@311	1777 uw_check(ctx, FLOATS_MAX);
adamc@666	1778 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1779 ctx->page.front += len;
adamc@428	1780
adamc@428	1781 return uw_unit_v;
adamc@117	1782 }
adamc@117	1783
adamc@428	1784 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1785 uw_check(ctx, strlen(s) * 6);
adamc@117	1786
adamc@106	1787 for (; *s; s++) {
adamc@1054	1788 unsigned char c = *s;
adamc@106	1789
adamc@106	1790 if (c == '"')
adamc@311	1791 uw_write_unsafe(ctx, """);
adamc@136	1792 else if (c == '&')
adamc@311	1793 uw_write_unsafe(ctx, "&");
adamc@1059	1794 else
adamc@311	1795 uw_writec_unsafe(ctx, c);
adamc@106	1796 }
adamc@428	1797
adamc@428	1798 return uw_unit_v;
adamc@106	1799 }
adamc@120	1800
adamc@1011	1801 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1802 uw_check(ctx, 6);
adamc@1011	1803
adamc@1011	1804 if (c == '"')
adamc@1011	1805 uw_write_unsafe(ctx, """);
adamc@1011	1806 else if (c == '&')
adamc@1011	1807 uw_write_unsafe(ctx, "&");
adamc@1059	1808 else
adamc@1011	1809 uw_writec_unsafe(ctx, c);
adamc@1011	1810
adamc@1011	1811 return uw_unit_v;
adamc@1011	1812 }
adamc@1011	1813
adamc@120	1814
adamc@311	1815 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1816 int len;
adamc@137	1817 char *r;
adamc@137	1818
adamc@311	1819 uw_check_heap(ctx, INTS_MAX);
adamc@666	1820 r = ctx->heap.front;
adamc@276	1821 sprintf(r, "%lld%n", n, &len);
adamc@666	1822 ctx->heap.front += len+1;
adamc@137	1823 return r;
adamc@120	1824 }
adamc@120	1825
adamc@682	1826 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1827 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1828 return "";
adamc@682	1829 else {
adamc@682	1830 int len;
adamc@682	1831 char *r;
adamc@679	1832
adamc@682	1833 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1834 r = ctx->heap.front;
adamc@682	1835 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1836 ctx->heap.front += len+1;
adamc@682	1837 return r;
adamc@682	1838 }
adamc@679	1839 }
adamc@679	1840
adamc@311	1841 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1842 int len;
adamc@137	1843 char *r;
adamc@137	1844
adamc@311	1845 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1846 r = ctx->heap.front;
adamc@137	1847 sprintf(r, "%g%n", n, &len);
adamc@666	1848 ctx->heap.front += len+1;
adamc@137	1849 return r;
adamc@120	1850 }
adamc@120	1851
adamc@311	1852 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1853 char r, p;
adamc@137	1854
adamc@925	1855 if (s[0] == '\0')
adamc@925	1856 return "_";
adamc@925	1857
adamc@925	1858 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1859
adamc@925	1860 r = p = ctx->heap.front;
adamc@925	1861 if (s[0] == '_')
adamc@925	1862 *p++ = '_';
adamc@925	1863
adamc@925	1864 for (; *s; s++) {
adamc@1087	1865 unsigned char c = *s;
adamc@137	1866
adamc@137	1867 if (c == ' ')
adamc@137	1868 *p++ = '+';
adamc@137	1869 else if (isalnum(c))
adamc@137	1870 *p++ = c;
adamc@137	1871 else {
adamc@1259	1872 sprintf(p, ".%02X", c);
adamc@137	1873 p += 3;
adamc@137	1874 }
adamc@137	1875 }
adamc@137	1876
adamc@137	1877 *p++ = 0;
adamc@666	1878 ctx->heap.front = p;
adamc@137	1879 return r;
adamc@120	1880 }
adamc@120	1881
adamc@311	1882 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1883 if (b == uw_Basis_False)
adamc@186	1884 return "0";
adamc@186	1885 else
adamc@186	1886 return "1";
adamc@186	1887 }
adamc@186	1888
adam@1620	1889 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1890 char *r;
adam@1620	1891 int len;
adam@1620	1892 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1893 r = ctx->heap.front;
adam@1620	1894 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1895 ctx->heap.front += len+1;
adam@1620	1896 return r;
adam@1620	1897 }
adam@1620	1898
adamc@311	1899 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1900 int len;
adamc@120	1901
adamc@666	1902 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1903 ctx->page.front += len;
adamc@120	1904 }
adamc@120	1905
adamc@428	1906 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1907 uw_check(ctx, INTS_MAX);
adamc@311	1908 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1909
adamc@428	1910 return uw_unit_v;
adamc@120	1911 }
adamc@120	1912
adamc@682	1913 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1914 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1915 int len;
phurst@1981	1916
adamc@682	1917 uw_check(ctx, INTS_MAX + 1);
adamc@682	1918 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1919 ctx->page.front += len;
adamc@682	1920 }
phurst@1981	1921
adamc@679	1922 return uw_unit_v;
adamc@679	1923 }
adamc@679	1924
adamc@428	1925 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1926 int len;
adamc@120	1927
adamc@311	1928 uw_check(ctx, FLOATS_MAX);
adamc@666	1929 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1930 ctx->page.front += len;
adamc@428	1931
adamc@428	1932 return uw_unit_v;
adamc@120	1933 }
adamc@120	1934
adamc@488	1935 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1936 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1937 }
adamc@488	1938
adam@1404	1939 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1940 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1941 }
adam@1404	1942
adamc@428	1943 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1944 if (s[0] == '\0') {
adamc@925	1945 uw_check(ctx, 1);
adamc@925	1946 uw_writec_unsafe(ctx, '_');
adamc@925	1947 return uw_unit_v;
adamc@925	1948 }
adamc@925	1949
adamc@925	1950 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1951
adamc@925	1952 if (s[0] == '_')
adamc@925	1953 uw_writec_unsafe(ctx, '_');
adamc@120	1954
adamc@120	1955 for (; *s; s++) {
adamc@1087	1956 unsigned char c = *s;
adamc@120	1957
adamc@120	1958 if (c == ' ')
adamc@311	1959 uw_writec_unsafe(ctx, '+');
adamc@120	1960 else if (isalnum(c))
adamc@311	1961 uw_writec_unsafe(ctx, c);
adamc@120	1962 else {
adamc@1259	1963 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1964 ctx->page.front += 3;
adamc@120	1965 }
adamc@120	1966 }
adamc@428	1967
adamc@428	1968 return uw_unit_v;
adamc@120	1969 }
adamc@120	1970
adamc@428	1971 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1972 if (b == uw_Basis_False)
adamc@311	1973 uw_writec(ctx, '0');
adamc@186	1974 else
adamc@311	1975 uw_writec(ctx, '1');
adamc@428	1976
adamc@428	1977 return uw_unit_v;
adamc@186	1978 }
adamc@186	1979
adam@1620	1980 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	1981 int len;
phurst@1981	1982
adam@1620	1983 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	1984 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1985 ctx->page.front += len;
phurst@1981	1986
adam@1620	1987 return uw_unit_v;
adam@1620	1988 }
adam@1620	1989
adamc@120	1990
adamc@311	1991 static char uw_unurlify_advance(char s) {
adamc@144	1992 char *new_s = strchr(s, '/');
adamc@120	1993
adamc@120	1994 if (new_s)
adamc@120	1995 *new_s++ = 0;
adamc@120	1996 else
adamc@144	1997 new_s = strchr(s, 0);
adamc@144	1998
adamc@144	1999 return new_s;
adamc@144	2000 }
adamc@144	2001
adamc@311	2002 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	2003 char new_s = uw_unurlify_advance(s);
adamc@311	2004 uw_Basis_int r;
adamc@120	2005
adamc@276	2006 r = atoll(*s);
adamc@120	2007 *s = new_s;
adamc@120	2008 return r;
adamc@120	2009 }
adamc@120	2010
adamc@311	2011 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	2012 char new_s = uw_unurlify_advance(s);
adamc@311	2013 uw_Basis_float r;
adamc@120	2014
adamc@120	2015 r = atof(*s);
adamc@120	2016 *s = new_s;
adamc@120	2017 return r;
adamc@120	2018 }
adamc@120	2019
adamc@488	2020 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	2021 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	2022 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	2023 return r;
adamc@488	2024 }
adamc@488	2025
adamc@1023	2026 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	2027 char s1, s2 = s;
adamc@144	2028 int n;
adamc@136	2029
adamc@1023	2030 if (!fromClient) {
adamc@1023	2031 if (*s2 == '_')
adamc@1023	2032 ++s2;
adamc@1259	2033 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	2034 s2 += 3;
adamc@1023	2035 }
adamc@925	2036
adamc@927	2037 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	2038 unsigned char c = *s2;
adamc@136	2039
adamc@136	2040 switch (c) {
adamc@136	2041 case '+':
adamc@136	2042 *s1 = ' ';
adamc@136	2043 break;
adamc@136	2044 case '%':
adamc@169	2045 if (s2[1] == 0)
adamc@311	2046 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	2047 if (s2[2] == 0)
adamc@311	2048 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	2049 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2050 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	2051 *s1 = n;
adamc@136	2052 s2 += 2;
adamc@136	2053 break;
adamc@1259	2054 case '.':
adamc@1259	2055 if (!fromClient) {
adamc@1259	2056 if (s2[1] == 0)
adamc@1259	2057 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	2058 if (s2[2] == 0)
adamc@1259	2059 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	2060 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2061 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	2062 *s1 = n;
adamc@1259	2063 s2 += 2;
adamc@1259	2064 break;
adamc@1259	2065 }
adamc@136	2066 default:
adamc@136	2067 *s1 = c;
adamc@136	2068 }
adamc@136	2069 }
adamc@136	2070 *s1++ = 0;
adamc@144	2071 return s1;
adamc@144	2072 }
adamc@144	2073
adamc@311	2074 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	2075 char new_s = uw_unurlify_advance(s);
adamc@311	2076 uw_Basis_bool r;
phurst@1981	2077
adamc@186	2078 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2079 r = uw_Basis_False;
adamc@186	2080 else
adamc@311	2081 r = uw_Basis_True;
adamc@186	2082
adamc@186	2083 *s = new_s;
adamc@186	2084 return r;
adamc@186	2085 }
adamc@186	2086
adamc@311	2087 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2088 char new_s = uw_unurlify_advance(s);
adamc@1134	2089 char *r;
adamc@1134	2090 int len;
adamc@144	2091
adamc@200	2092 len = strlen(*s);
adamc@311	2093 uw_check_heap(ctx, len + 1);
adamc@144	2094
adamc@666	2095 r = ctx->heap.front;
adamc@1023	2096 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2097 *s = new_s;
adamc@1023	2098 return r;
adamc@1023	2099 }
adamc@1023	2100
adamc@1109	2101 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2102 s = uw_unurlify_advance(s);
adamc@1109	2103 return uw_unit_v;
adamc@1109	2104 }
adamc@1109	2105
adamc@1023	2106 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2107 char new_s = uw_unurlify_advance(s);
adamc@1134	2108 char *r;
adamc@1134	2109 int len;
adamc@1023	2110
adamc@1023	2111 len = strlen(*s);
adamc@1023	2112 uw_check_heap(ctx, len + 1);
adamc@1023	2113
adamc@1023	2114 r = ctx->heap.front;
adamc@1023	2115 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2116 *s = new_s;
adamc@136	2117 return r;
adamc@120	2118 }
adamc@135	2119
adamc@135	2120
adamc@311	2121 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2122 int len;
adamc@286	2123 char *r;
adamc@286	2124
adamc@311	2125 uw_check_heap(ctx, INTS_MAX);
adamc@666	2126 r = ctx->heap.front;
adamc@286	2127 sprintf(r, "%lld%n", n, &len);
adamc@666	2128 ctx->heap.front += len+1;
adamc@286	2129 return r;
adamc@286	2130 }
adamc@286	2131
adamc@428	2132 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2133 int len;
adamc@286	2134
adamc@311	2135 uw_check(ctx, INTS_MAX);
adamc@666	2136 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2137 ctx->page.front += len;
phurst@1981	2138
adamc@428	2139 return uw_unit_v;
adamc@286	2140 }
adamc@286	2141
adam@1358	2142 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2143 unsigned int n = ch;
adam@1358	2144 int len;
adam@1358	2145 char *r;
adam@1358	2146
adam@1358	2147 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2148 r = ctx->heap.front;
adam@1358	2149 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2150 ctx->heap.front += len+1;
adam@1358	2151 return r;
adam@1358	2152 }
adam@1358	2153
adam@1358	2154 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2155 unsigned int n = ch;
adam@1358	2156 int len;
adam@1358	2157
adam@1358	2158 uw_check(ctx, INTS_MAX+3);
adam@1358	2159 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2160 ctx->page.front += len;
adam@1358	2161 return uw_unit_v;
adam@1358	2162 }
adam@1358	2163
adamc@311	2164 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2165 int len;
adamc@286	2166 char *r;
adamc@286	2167
adamc@311	2168 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2169 r = ctx->heap.front;
adamc@286	2170 sprintf(r, "%g%n", n, &len);
adamc@666	2171 ctx->heap.front += len+1;
adamc@286	2172 return r;
adamc@286	2173 }
adamc@286	2174
adamc@428	2175 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2176 int len;
adamc@286	2177
adamc@311	2178 uw_check(ctx, FLOATS_MAX);
adamc@666	2179 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2180 ctx->page.front += len;
adamc@428	2181
adamc@428	2182 return uw_unit_v;
adamc@286	2183 }
adamc@286	2184
adam@1365	2185 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2186 int len;
adam@1360	2187 char *r;
adam@1360	2188
adam@1360	2189 uw_check_heap(ctx, INTS_MAX);
adam@1360	2190 r = ctx->heap.front;
adamc@1377	2191 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2192 ctx->heap.front += len+1;
adam@1360	2193 return r;
adam@1360	2194 }
adam@1360	2195
adam@1365	2196 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2197 int len;
adam@1360	2198
adam@1360	2199 uw_check(ctx, INTS_MAX);
adam@1360	2200 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2201 ctx->page.front += len;
phurst@1981	2202
adam@1360	2203 return uw_unit_v;
adam@1360	2204 }
adam@1360	2205
adam@1444	2206 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2207 char r, s2;
adamc@137	2208
adamc@311	2209 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2210
adamc@666	2211 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2212 unsigned char c = *s;
adamc@137	2213
adamc@137	2214 switch (c) {
adamc@137	2215 case '<':
adamc@137	2216 strcpy(s2, "<");
adamc@137	2217 s2 += 4;
adamc@137	2218 break;
adamc@137	2219 case '&':
adamc@137	2220 strcpy(s2, "&");
adamc@137	2221 s2 += 5;
adamc@137	2222 break;
adamc@137	2223 default:
adamc@1059	2224 *s2++ = c;
adamc@137	2225 }
adamc@137	2226 }
adamc@137	2227
adamc@137	2228 *s2++ = 0;
adamc@666	2229 ctx->heap.front = s2;
adamc@137	2230 return r;
adamc@135	2231 }
adamc@135	2232
adamc@428	2233 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2234 uw_check(ctx, strlen(s) * 6);
adamc@135	2235
adamc@135	2236 for (; *s; s++) {
adamc@1054	2237 unsigned char c = *s;
adamc@135	2238
adamc@135	2239 switch (c) {
adamc@135	2240 case '<':
adamc@311	2241 uw_write_unsafe(ctx, "<");
adamc@135	2242 break;
adamc@135	2243 case '&':
adamc@311	2244 uw_write_unsafe(ctx, "&");
adamc@135	2245 break;
adamc@135	2246 default:
adamc@1059	2247 uw_writec_unsafe(ctx, c);
adamc@135	2248 }
adamc@135	2249 }
adamc@428	2250
adamc@428	2251 return uw_unit_v;
adamc@135	2252 }
adamc@180	2253
adamc@311	2254 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2255 if (b == uw_Basis_False)
adamc@286	2256 return "False";
adamc@286	2257 else
adamc@286	2258 return "True";
adamc@286	2259 }
adamc@286	2260
adamc@428	2261 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2262 if (b == uw_Basis_False) {
adamc@311	2263 uw_check(ctx, 6);
adamc@666	2264 strcpy(ctx->page.front, "False");
adamc@666	2265 ctx->page.front += 5;
adamc@286	2266 } else {
adamc@311	2267 uw_check(ctx, 5);
adamc@666	2268 strcpy(ctx->page.front, "True");
adamc@666	2269 ctx->page.front += 4;
adamc@286	2270 }
adamc@428	2271
adamc@428	2272 return uw_unit_v;
adamc@286	2273 }
adamc@286	2274
adamc@436	2275 #define TIME_FMT "%x %X"
adamc@438	2276 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2277 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2278
adam@1629	2279 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2280
adamc@436	2281 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2282 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2283 }
adamc@436	2284
adamc@436	2285 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2286 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2287 }
adamc@436	2288
adam@1446	2289 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2290 int len;
adam@1446	2291 char *r;
adam@1446	2292
adam@1446	2293 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2294 r = ctx->heap.front;
adam@1446	2295 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2296 ctx->heap.front += len+1;
adam@1446	2297 return r;
adam@1446	2298 }
adam@1446	2299
adam@1446	2300 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2301 int len;
adam@1446	2302
adam@1446	2303 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2304 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2305 ctx->page.front += len;
phurst@1981	2306
adam@1446	2307 return uw_unit_v;
adam@1446	2308 }
adam@1446	2309
adamc@821	2310 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2311 while (n >= 0) {
adam@1388	2312 if (*s == 0)
adam@1388	2313 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2314
adam@1388	2315 if (n == 0)
adam@1388	2316 return *s;
adam@1388	2317
adam@1388	2318 --n;
adam@1388	2319 ++s;
adam@1388	2320 }
adam@1388	2321
adam@1388	2322 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2323 }
adamc@821	2324
adamc@821	2325 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2326 while (n >= 0) {
adam@1388	2327 if (*s == 0 \|\| n == 0)
adam@1388	2328 return s;
adam@1388	2329
adam@1388	2330 --n;
adam@1388	2331 ++s;
adam@1388	2332 }
adam@1388	2333
adam@1388	2334 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2335 }
adamc@821	2336
adamc@828	2337 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2338 return strlen(s);
adamc@828	2339 }
adamc@828	2340
adam@1388	2341 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2342 while (n > 0) {
adam@1388	2343 if (*s == 0)
adam@1388	2344 return uw_Basis_False;
adam@1388	2345
adam@1388	2346 --n;
adam@1388	2347 ++s;
adam@1388	2348 }
adam@1388	2349
adam@1388	2350 return uw_Basis_True;
adam@1388	2351 }
adam@1388	2352
adamc@829	2353 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2354 return strchr(s, ch);
adamc@829	2355 }
adamc@829	2356
adamc@831	2357 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2358 return strcspn(s, chs);
adamc@831	2359 }
adamc@831	2360
adamc@829	2361 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2362 uw_Basis_string r = strchr(s, ch);
adamc@829	2363 if (r == NULL)
adamc@829	2364 return NULL;
adamc@829	2365 else {
adamc@829	2366 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2367 *nr = r - s;
adamc@829	2368 return nr;
adamc@829	2369 }
adamc@829	2370 }
adamc@829	2371
adam@1390	2372 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2373 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2374 if (r == NULL)
adam@1390	2375 return NULL;
adam@1390	2376 else {
adam@1390	2377 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2378 *nr = r - haystack;
adam@1390	2379 return nr;
adam@1390	2380 }
adam@1390	2381 }
adam@1390	2382
adamc@311	2383 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2384 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2385 char *s;
adamc@180	2386
adamc@311	2387 uw_check_heap(ctx, len);
adamc@180	2388
adamc@666	2389 s = ctx->heap.front;
adamc@180	2390
adamc@180	2391 strcpy(s, s1);
adamc@180	2392 strcat(s, s2);
adamc@666	2393 ctx->heap.front += len;
adamc@180	2394
adamc@180	2395 return s;
adamc@180	2396 }
adamc@278	2397
adamc@829	2398 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2399 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2400
adamc@829	2401 if (start < 0)
adamc@829	2402 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2403 if (len < 0)
adamc@829	2404 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2405 if (start + len > full_len)
adamc@829	2406 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2407
adamc@829	2408 if (start + len == full_len)
adamc@829	2409 return &s[start];
adamc@829	2410 else {
adamc@829	2411 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2412 memcpy(r, s+start, len);
adamc@829	2413 r[len] = 0;
adamc@829	2414 return r;
adamc@829	2415 }
phurst@1981	2416
adamc@829	2417 }
adamc@829	2418
adamc@1023	2419 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2420 char *r;
adamc@1023	2421
adamc@1023	2422 uw_check_heap(ctx, 2);
adamc@1023	2423 r = ctx->heap.front;
adamc@1023	2424 r[0] = ch;
adamc@1023	2425 r[1] = 0;
adamc@1023	2426
adamc@1023	2427 ctx->heap.front += 2;
adamc@1023	2428
adamc@1023	2429 return r;
adamc@1023	2430 }
adamc@1023	2431
adamc@737	2432 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2433 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2434 char *s;
adamc@278	2435
adamc@311	2436 uw_check_heap(ctx, len);
adamc@278	2437
adamc@666	2438 s = ctx->heap.front;
adamc@278	2439
adamc@278	2440 strcpy(s, s1);
adamc@666	2441 ctx->heap.front += len;
adamc@278	2442
adamc@278	2443 return s;
adamc@278	2444 }
adamc@280	2445
adam@1295	2446 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2447 if (ctx->error_message[0]) {
adam@1295	2448 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2449 ctx->error_message[0] = 0;
adam@1295	2450 return s;
adam@1295	2451 } else
adam@1295	2452 return NULL;
adam@1295	2453 }
adam@1295	2454
adamc@737	2455 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2456 if (s1)
adamc@737	2457 return uw_strdup(ctx, s1);
adamc@493	2458 else
adamc@493	2459 return NULL;
adamc@493	2460 }
adamc@493	2461
adamc@742	2462 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2463 char *r = uw_malloc(ctx, len);
adamc@742	2464 memcpy(r, p, len);
adamc@742	2465 return r;
adamc@742	2466 }
adamc@280	2467
adamc@879	2468 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2469
adamc@311	2470 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2471 int len;
adamc@281	2472 char *r;
adamc@281	2473
adamc@311	2474 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2475 r = ctx->heap.front;
adamc@879	2476 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2477 ctx->heap.front += len+1;
adamc@281	2478 return r;
adamc@281	2479 }
adamc@281	2480
adamc@467	2481 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2482 if (n == NULL)
adamc@467	2483 return "NULL";
adamc@467	2484 else
adamc@467	2485 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2486 }
adamc@467	2487
adam@1920	2488 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879	2489
adamc@311	2490 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2491 int len;
adamc@281	2492 char *r;
adamc@281	2493
adamc@311	2494 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2495 r = ctx->heap.front;
adamc@879	2496 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2497 ctx->heap.front += len+1;
adamc@281	2498 return r;
adamc@281	2499 }
adamc@281	2500
adamc@467	2501 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2502 if (n == NULL)
adamc@467	2503 return "NULL";
adamc@467	2504 else
adamc@467	2505 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2506 }
adamc@467	2507
adam@1834	2508 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2509 char *uw_sqlsuffixString = "::text";
adamc@1011	2510 char *uw_sqlsuffixChar = "::char";
adamc@281	2511
adamc@311	2512 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2513 char r, s2;
adamc@280	2514
adamc@879	2515 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2516
adamc@666	2517 r = s2 = ctx->heap.front;
adamc@879	2518 if (uw_Estrings)
adamc@879	2519 *s2++ = 'E';
adamc@280	2520 *s2++ = '\'';
adamc@280	2521
adamc@280	2522 for (; *s; s++) {
adamc@280	2523 char c = *s;
adamc@280	2524
adamc@280	2525 switch (c) {
adamc@280	2526 case '\'':
adamc@885	2527 if (uw_Estrings)
adamc@885	2528 strcpy(s2, "\\'");
adamc@885	2529 else
adamc@885	2530 strcpy(s2, "''");
adamc@280	2531 s2 += 2;
adamc@280	2532 break;
adamc@280	2533 case '\\':
adamc@885	2534 if (uw_Estrings) {
adamc@885	2535 strcpy(s2, "\\\\");
adamc@885	2536 s2 += 2;
adamc@885	2537 } else
adamc@885	2538 *s2++ = '\\';
adamc@280	2539 break;
adamc@280	2540 default:
adamc@1150	2541 if (isprint((int)c))
adamc@280	2542 *s2++ = c;
adamc@879	2543 else if (uw_Estrings) {
adam@1857	2544 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2545 s2 += 4;
adamc@280	2546 }
adamc@879	2547 else
adam@1689	2548 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2549 }
adamc@280	2550 }
adamc@280	2551
adamc@879	2552 *s2++ = '\'';
adamc@879	2553 strcpy(s2, uw_sqlsuffixString);
adamc@879	2554 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2555 return r;
adamc@280	2556 }
adamc@281	2557
adamc@1011	2558 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2559 char r, s2;
adamc@1011	2560
adamc@1011	2561 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2562
adamc@1011	2563 r = s2 = ctx->heap.front;
adamc@1011	2564 if (uw_Estrings)
adamc@1011	2565 *s2++ = 'E';
adamc@1011	2566 *s2++ = '\'';
adamc@1011	2567
adamc@1011	2568 switch (c) {
adamc@1011	2569 case '\'':
adamc@1011	2570 if (uw_Estrings)
adamc@1011	2571 strcpy(s2, "\\'");
adamc@1011	2572 else
adamc@1011	2573 strcpy(s2, "''");
adamc@1011	2574 s2 += 2;
adamc@1011	2575 break;
adamc@1011	2576 case '\\':
adamc@1011	2577 if (uw_Estrings) {
adamc@1011	2578 strcpy(s2, "\\\\");
adamc@1011	2579 s2 += 2;
adamc@1011	2580 } else
adamc@1011	2581 *s2++ = '\\';
adamc@1011	2582 break;
adamc@1011	2583 default:
adamc@1150	2584 if (isprint((int)c))
adamc@1011	2585 *s2++ = c;
adamc@1011	2586 else if (uw_Estrings) {
adam@1857	2587 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2588 s2 += 4;
adamc@1011	2589 }
adamc@1011	2590 else
adamc@1011	2591 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2592 }
adamc@1011	2593
adamc@1011	2594 *s2++ = '\'';
adamc@1011	2595 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2596 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2597 return r;
adamc@1011	2598 }
adamc@1011	2599
adamc@879	2600 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2601
adam@1867	2602 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2603 char r, s2;
adamc@737	2604 size_t i;
adamc@737	2605
adam@1867	2606 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2607
adamc@737	2608 r = s2 = ctx->heap.front;
adamc@879	2609 if (uw_Estrings)
adamc@879	2610 *s2++ = 'E';
adam@1867	2611 else
adam@1867	2612 *s2++ = 'X';
adamc@737	2613 *s2++ = '\'';
adamc@737	2614
adamc@737	2615 for (i = 0; i < b.size; ++i) {
adam@1867	2616 unsigned char c = b.data[i];
adam@1867	2617
adam@1867	2618 if (uw_Estrings) {
adam@1867	2619 switch (c) {
adam@1867	2620 case '\'':
adamc@885	2621 strcpy(s2, "\\'");
adam@1867	2622 s2 += 2;
adam@1867	2623 break;
adam@1867	2624 case '\\':
adamc@885	2625 strcpy(s2, "\\\\\\\\");
adamc@885	2626 s2 += 4;
adam@1867	2627 break;
adam@1867	2628 default:
adam@1867	2629 if (isprint((int)c))
adam@1867	2630 *s2++ = c;
adam@1867	2631 else {
adam@1867	2632 sprintf(s2, "\\\\%03o", c);
adam@1867	2633 s2 += 5;
adam@1867	2634 }
adamc@737	2635 }
adam@1867	2636 } else {
adam@1867	2637 sprintf(s2, "%02X", c);
adam@1867	2638 s2 += 2;
adamc@737	2639 }
phurst@1981	2640 }
adamc@737	2641
adamc@879	2642 *s2++ = '\'';
adamc@879	2643 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2644 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2645 return r;
adamc@737	2646 }
adamc@737	2647
adamc@682	2648 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2649 int len;
adamc@682	2650 char *r;
adamc@682	2651 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2652
adamc@682	2653 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2654 r = ctx->heap.front;
adamc@879	2655 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2656 ctx->heap.front += len+1;
adamc@682	2657 return r;
adamc@682	2658 }
adamc@682	2659
adamc@682	2660 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2661 int len;
adamc@682	2662 char *r;
adamc@682	2663 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2664
adamc@682	2665 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2666 r = ctx->heap.front;
adamc@682	2667 sprintf(r, "%lld%n", combo, &len);
adamc@682	2668 ctx->heap.front += len+1;
adamc@682	2669 return r;
adamc@682	2670 }
adamc@682	2671
adamc@879	2672 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2673
adamc@682	2674 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2675 int len;
adamc@682	2676 char *r;
adamc@682	2677
adamc@682	2678 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2679 r = ctx->heap.front;
adamc@879	2680 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2681 ctx->heap.front += len+1;
adamc@682	2682 return r;
adamc@682	2683 }
adamc@682	2684
adamc@682	2685 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2686 int len;
adamc@682	2687 char *r;
adamc@682	2688
adamc@682	2689 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2690 r = ctx->heap.front;
adamc@682	2691 sprintf(r, "%u%n", cli, &len);
adamc@682	2692 ctx->heap.front += len+1;
adamc@682	2693 return r;
adamc@682	2694 }
adamc@682	2695
adamc@467	2696 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2697 if (s == NULL)
adamc@467	2698 return "NULL";
adamc@467	2699 else
adamc@467	2700 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2701 }
adamc@467	2702
adamc@311	2703 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2704 if (b == uw_Basis_False)
adamc@281	2705 return "FALSE";
adamc@281	2706 else
adamc@281	2707 return "TRUE";
adamc@281	2708 }
adamc@282	2709
adamc@467	2710 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2711 if (b == NULL)
adamc@467	2712 return "NULL";
adamc@467	2713 else
adamc@467	2714 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2715 }
adamc@467	2716
adamc@439	2717 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2718 size_t len;
adamc@682	2719 char r, s;
adam@1392	2720 struct tm stm = {};
adam@1392	2721 stm.tm_isdst = -1;
adamc@682	2722
adam@1365	2723 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2724 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2725 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2726 if (uw_sql_type_annotations) {
adam@1834	2727 if (t.microseconds) {
adam@1834	2728 r = uw_malloc(ctx, len + 21);
adam@1834	2729 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2730 } else {
adam@1834	2731 r = uw_malloc(ctx, len + 14);
adam@1834	2732 sprintf(r, "'%s'::timestamp", s);
adam@1834	2733 }
adam@1367	2734 } else {
adam@1834	2735 r = uw_malloc(ctx, len + 3);
adam@1834	2736 sprintf(r, "'%s'", s);
adam@1367	2737 }
adamc@682	2738 return r;
adamc@682	2739 } else
adamc@682	2740 return "<Invalid time>";
adamc@682	2741 }
adamc@682	2742
adamc@682	2743 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2744 size_t len;
adamc@439	2745 char *r;
adam@1392	2746 struct tm stm = {};
adam@1392	2747 stm.tm_isdst = -1;
adamc@439	2748
adam@1365	2749 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2750 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2751 r = ctx->heap.front;
adamc@439	2752 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2753 ctx->heap.front += len+1;
adamc@439	2754 return r;
adamc@439	2755 } else
adamc@439	2756 return "<Invalid time>";
adamc@439	2757 }
adamc@439	2758
adam@1364	2759 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2760 size_t len;
adam@1364	2761 char *r;
adam@1392	2762 struct tm stm = {};
adam@1392	2763 stm.tm_isdst = -1;
adam@1364	2764
adam@1365	2765 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2766 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2767 r = ctx->heap.front;
adam@1365	2768 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2769 ctx->heap.front += len;
adam@1365	2770 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2771 ctx->heap.front += 8;
adam@1364	2772 return r;
adam@1364	2773 } else
adam@1364	2774 return "<Invalid time>";
adam@1364	2775 }
adam@1364	2776
adamc@467	2777 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2778 if (t == NULL)
adamc@467	2779 return "NULL";
adamc@467	2780 else
adamc@467	2781 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2782 }
adamc@467	2783
adamc@311	2784 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2785 static uw_Basis_int true = 1;
adamc@311	2786 static uw_Basis_int false = 0;
adamc@282	2787
adamc@311	2788 if (b == uw_Basis_False)
adamc@282	2789 return (char *)&false;
adamc@282	2790 else
adamc@282	2791 return (char *)&true;
adamc@282	2792 }
adamc@284	2793
adamc@311	2794 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2795 int len;
adamc@284	2796 char *r;
adamc@284	2797
adamc@311	2798 uw_check_heap(ctx, INTS_MAX);
adamc@666	2799 r = ctx->heap.front;
adamc@284	2800 sprintf(r, "%lld%n", n, &len);
adamc@666	2801 ctx->heap.front += len+1;
adamc@284	2802 return r;
adamc@284	2803 }
adamc@285	2804
adamc@311	2805 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2806 int len;
adamc@285	2807 char *r;
adamc@285	2808
adamc@311	2809 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2810 r = ctx->heap.front;
adamc@285	2811 sprintf(r, "%g%n", n, &len);
adamc@666	2812 ctx->heap.front += len+1;
adamc@285	2813 return r;
adamc@285	2814 }
adamc@285	2815
adamc@821	2816 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2817 char *r = uw_malloc(ctx, 2);
adamc@821	2818 r[0] = ch;
adamc@821	2819 r[1] = 0;
adamc@821	2820 return r;
adamc@821	2821 }
adamc@821	2822
adamc@311	2823 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2824 if (b == uw_Basis_False)
adamc@285	2825 return "False";
adamc@285	2826 else
adamc@285	2827 return "True";
adamc@285	2828 }
adamc@288	2829
adam@1359	2830 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2831 size_t len;
adam@1352	2832 char *r;
adam@1392	2833 struct tm stm = {};
adam@1392	2834 stm.tm_isdst = -1;
adam@1352	2835
adam@1365	2836 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2837 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2838 r = ctx->heap.front;
adam@1352	2839 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2840 ctx->heap.front += len+1;
adam@1352	2841 return r;
adam@1352	2842 } else
adam@1352	2843 return "<Invalid time>";
adam@1352	2844 }
adam@1352	2845
adam@1629	2846 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2847 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2848 }
adam@1629	2849
adamc@311	2850 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2851 char *endptr;
adamc@311	2852 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2853
adamc@288	2854 if (s != '\0' && endptr == '\0') {
adamc@311	2855 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2856 *r = n;
adamc@288	2857 return r;
adamc@288	2858 } else
adamc@288	2859 return NULL;
adamc@288	2860 }
adamc@289	2861
adamc@311	2862 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2863 char *endptr;
adamc@311	2864 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2865
adamc@289	2866 if (s != '\0' && endptr == '\0') {
adamc@311	2867 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2868 *r = n;
adamc@289	2869 return r;
adamc@289	2870 } else
adamc@289	2871 return NULL;
adamc@289	2872 }
adamc@289	2873
adamc@821	2874 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2875 if (s[0] == 0) {
adamc@821	2876 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2877 r[0] = 0;
adamc@821	2878 return r;
adamc@821	2879 } else if (s[1] != 0)
adamc@821	2880 return NULL;
adamc@821	2881 else {
adamc@821	2882 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2883 r[0] = s[0];
adamc@821	2884 return r;
adamc@821	2885 }
adamc@821	2886 }
adamc@821	2887
adamc@311	2888 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2889 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2890 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2891
adamc@289	2892 if (!strcasecmp (s, "True"))
adamc@289	2893 return &true;
adamc@289	2894 else if (!strcasecmp (s, "False"))
adamc@289	2895 return &false;
adamc@289	2896 else
adamc@289	2897 return NULL;
adamc@289	2898 }
adamc@292	2899
adamc@436	2900 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2901 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2902 struct tm stm = {};
adam@1392	2903 stm.tm_isdst = -1;
adamc@436	2904
adamc@439	2905 if (dot) {
adamc@439	2906 *dot = 0;
adamc@439	2907 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2908 *dot = '.';
adamc@439	2909 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2910 r->seconds = mktime(&stm);
adam@1365	2911 r->microseconds = 0;
adamc@439	2912 return r;
adamc@439	2913 }
adamc@439	2914 else {
adamc@439	2915 *dot = '.';
adamc@439	2916 return NULL;
adamc@439	2917 }
adamc@436	2918 }
adamc@439	2919 else {
adam@2072	2920 if (strptime(s, ctx->app->time_format, &stm) == end) {
adamc@439	2921 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2922 r->seconds = mktime(&stm);
adam@1365	2923 r->microseconds = 0;
adamc@439	2924 return r;
adam@2072	2925 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@2072	2926 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@2072	2927 r->seconds = mktime(&stm);
adam@2072	2928 r->microseconds = 0;
adam@2072	2929 return r;
adam@2072	2930 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2931 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2932 r->seconds = mktime(&stm);
adam@1365	2933 r->microseconds = 0;
adamc@439	2934 return r;
adam@1632	2935 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2936 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2937 r->seconds = mktime(&stm);
adam@1632	2938 r->microseconds = 0;
adam@1632	2939 return r;
adamc@439	2940 }
adamc@439	2941 else
adamc@439	2942 return NULL;
adamc@439	2943 }
adamc@436	2944 }
adamc@436	2945
adam@1352	2946 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2947 char *end = strchr(s, 0);
adam@1374	2948 struct tm stm = {};
adam@1392	2949 stm.tm_isdst = -1;
adam@1352	2950
adam@1352	2951 if (strptime(s, fmt, &stm) == end) {
adam@1352	2952 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2953 r->seconds = mktime(&stm);
adam@1365	2954 r->microseconds = 0;
adam@1352	2955 return r;
adam@1352	2956 }
adam@1352	2957 else
adam@1352	2958 return NULL;
adam@1352	2959 }
adam@1352	2960
adamc@311	2961 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2962 char *endptr;
adamc@311	2963 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2964
adamc@292	2965 if (s != '\0' && endptr == '\0')
adamc@292	2966 return n;
adamc@292	2967 else
adam@1444	2968 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2969 }
adamc@293	2970
adamc@682	2971 #include <errno.h>
adamc@682	2972
adamc@678	2973 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2974 unsigned long long n;
adamc@682	2975
adamc@682	2976 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2977 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	2978 else {
adamc@682	2979 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2980 return ch;
adamc@682	2981 }
adamc@682	2982 }
adamc@682	2983
adamc@682	2984 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2985 char *endptr;
adamc@682	2986 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2987
adamc@678	2988 if (s != '\0' && endptr == '\0')
adamc@678	2989 return n;
adamc@678	2990 else
adam@1444	2991 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	2992 }
adamc@678	2993
adamc@311	2994 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2995 char *endptr;
adamc@311	2996 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2997
adamc@293	2998 if (s != '\0' && endptr == '\0')
adamc@293	2999 return n;
adamc@293	3000 else
adam@1444	3001 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3002 }
adamc@293	3003
adamc@821	3004 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	3005 if (s[0] == 0)
adamc@821	3006 return 0;
adamc@821	3007 else if (s[1] != 0)
adam@1444	3008 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	3009 else
adamc@821	3010 return s[0];
adamc@821	3011 }
adamc@821	3012
adamc@311	3013 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	3014 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	3015 return uw_Basis_True;
adamc@296	3016 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	3017 return uw_Basis_False;
adamc@293	3018 else
adam@1444	3019 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3020 }
adamc@436	3021
adam@1352	3022 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	3023 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	3024 struct tm stm = {};
adam@1392	3025 stm.tm_isdst = -1;
adam@1352	3026
adam@1352	3027 if (dot) {
adam@1352	3028 *dot = 0;
adam@1352	3029 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	3030 *dot = '.';
adam@1410	3031 char usec[] = "000000";
adam@1410	3032 int len = strlen(dot+1);
adam@1410	3033 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	3034 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	3035 return r;
adam@1352	3036 }
adam@1352	3037 else {
adam@1352	3038 *dot = '.';
adam@1444	3039 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3040 }
adam@1352	3041 }
adam@1352	3042 else {
adam@1352	3043 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3044 uw_Basis_time r = { mktime(&stm) };
adam@1365	3045 return r;
adam@1352	3046 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3047 uw_Basis_time r = { mktime(&stm) };
adam@1365	3048 return r;
adam@1352	3049 } else
adam@1444	3050 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3051 }
adam@1352	3052 }
adam@1352	3053
adamc@436	3054 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	3055 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	3056 struct tm stm = {};
adam@1392	3057 stm.tm_isdst = -1;
adamc@436	3058
adamc@438	3059 if (dot) {
adamc@438	3060 *dot = 0;
adamc@438	3061 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	3062 *dot = '.';
adam@1365	3063 {
adam@1365	3064 uw_Basis_time r = { mktime(&stm) };
adam@1365	3065 return r;
adam@1365	3066 }
adamc@438	3067 }
adamc@438	3068 else {
adamc@438	3069 *dot = '.';
adam@1444	3070 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3071 }
adamc@438	3072 }
adamc@438	3073 else {
adam@2072	3074 if (strptime(s, ctx->app->time_format, &stm) == end) {
adam@2072	3075 uw_Basis_time r = { mktime(&stm) };
adam@2072	3076 return r;
adam@2072	3077 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3078 uw_Basis_time r = { mktime(&stm) };
adam@1365	3079 return r;
adam@1365	3080 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3081 uw_Basis_time r = { mktime(&stm) };
adam@1365	3082 return r;
adam@1632	3083 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3084 uw_Basis_time r = { mktime(&stm) };
adam@1632	3085 return r;
adam@1365	3086 } else
adam@1444	3087 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3088 }
adamc@436	3089 }
adamc@457	3090
adam@1352	3091 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3092 char *end = strchr(s, 0);
adamc@939	3093 struct tm stm = {};
adam@1392	3094 stm.tm_isdst = -1;
adamc@939	3095
adam@1365	3096 if (strptime(s, fmt, &stm) == end) {
adam@1365	3097 uw_Basis_time r = { mktime(&stm) };
adam@1365	3098 return r;
adam@1365	3099 } else
adam@1444	3100 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3101 }
adamc@939	3102
adamc@742	3103 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3104 char *r = ctx->heap.front;
adamc@742	3105 uw_Basis_blob b = {len, r};
adamc@742	3106
adamc@742	3107 uw_check_heap(ctx, len);
adamc@742	3108
adam@1992	3109 if (s[0] == '\\' && s[1] == 'x') {
adam@1992	3110 s += 2;
adam@1992	3111
adam@1992	3112 while (*s) {
adam@1992	3113 int n;
adam@1992	3114 sscanf(s, "%02x", &n);
adam@1992	3115 *r++ = n;
adam@1992	3116 s += 2;
adam@1992	3117 }
adam@1992	3118 } else {
adam@1992	3119 while (*s) {
adam@1992	3120 if (s[0] == '\\') {
adam@1992	3121 if (s[1] == '\\') {
adam@1992	3122 *r++ = '\\';
adam@1992	3123 s += 2;
adam@1992	3124 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adam@1992	3125 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adam@1992	3126 s += 4;
adam@1992	3127 }
adam@1992	3128 else {
adam@1992	3129 *r++ = '\\';
adam@1992	3130 ++s;
adam@1992	3131 }
adam@1992	3132 } else {
adam@1992	3133 *r++ = s[0];
adamc@742	3134 ++s;
adamc@742	3135 }
adamc@742	3136 }
adamc@742	3137 }
adamc@742	3138
adamc@742	3139 b.size = r - ctx->heap.front;
adamc@742	3140 ctx->heap.front = r;
adam@1992	3141
adamc@742	3142 return b;
adamc@742	3143 }
adamc@742	3144
adam@1402	3145 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3146
adamc@463	3147 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3148 int len = strlen(c);
adamc@854	3149 char *p = ctx->outHeaders.start;
adamc@474	3150
adamc@1134	3151 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3152 char *p2;
adamc@474	3153 p += 13;
adamc@474	3154 p2 = strchr(p, '=');
adamc@474	3155
adamc@474	3156 if (p2) {
adamc@474	3157 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3158
adamc@474	3159 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3160 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3161 return NULL;
adamc@1052	3162 else {
adamc@1052	3163 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3164 memcpy(ret, p2+1, sz);
adamc@1052	3165 ret[sz] = 0;
adamc@1052	3166 return ret;
adamc@1052	3167 }
adamc@474	3168 }
adamc@474	3169 }
adamc@474	3170 }
adamc@463	3171
adamc@1134	3172 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3173 char *p2;
adamc@1051	3174
adamc@854	3175 while (1) {
adamc@1051	3176 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3177 if ((p2 = strchr(p, ';'))) {
adamc@1051	3178 size_t n = p2 - (p + len);
adamc@1051	3179 char *r = uw_malloc(ctx, n);
adamc@1051	3180 memcpy(r, p + 1 + len, n-1);
adamc@1051	3181 r[n-1] = 0;
adamc@1051	3182 return r;
adamc@1051	3183 } else
adamc@1051	3184 return p + 1 + len;
adamc@1134	3185 } else if ((p = strchr(p, ';')))
adamc@854	3186 p += 2;
adamc@463	3187 else
adamc@463	3188 return NULL;
adamc@463	3189 }
adamc@463	3190 }
adamc@792	3191
adamc@792	3192 return NULL;
adamc@457	3193 }
adamc@462	3194
adam@1877	3195 static void set_cookie(uw_context ctx) {
adam@1877	3196 if (ctx->usedSig)
adam@1877	3197 ctx->needsResig = 1;
adam@1877	3198 }
adam@1877	3199
adamc@1050	3200 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	3201 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3202 uw_write_header(ctx, c);
adamc@462	3203 uw_write_header(ctx, "=");
adamc@462	3204 uw_write_header(ctx, v);
adamc@466	3205 uw_write_header(ctx, "; path=");
adamc@466	3206 uw_write_header(ctx, prefix);
adamc@1050	3207 if (expires) {
adamc@1050	3208 char formatted[30];
adam@1392	3209 struct tm tm = {};
adam@1392	3210 tm.tm_isdst = -1;
adamc@1050	3211
adam@1365	3212 gmtime_r(&expires->seconds, &tm);
adamc@1050	3213
adamc@1050	3214 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3215
adamc@1050	3216 uw_write_header(ctx, "; expires=");
adamc@1050	3217 uw_write_header(ctx, formatted);
adamc@1050	3218 }
adamc@1050	3219 if (secure)
adamc@1050	3220 uw_write_header(ctx, "; secure");
adamc@462	3221 uw_write_header(ctx, "\r\n");
adam@1877	3222 set_cookie(ctx);
adamc@462	3223
adamc@462	3224 return uw_unit_v;
adamc@462	3225 }
adamc@667	3226
adamc@1050	3227 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3228 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3229 uw_write_header(ctx, c);
adamc@1050	3230 uw_write_header(ctx, "=; path=");
adamc@1050	3231 uw_write_header(ctx, prefix);
adamc@1052	3232 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3233 set_cookie(ctx);
adamc@1050	3234
adamc@1050	3235 return uw_unit_v;
adamc@1050	3236 }
adamc@1050	3237
adamc@1113	3238 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3239
adamc@682	3240 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3241 unsigned i;
adamc@682	3242 delta *d;
adamc@671	3243
adamc@682	3244 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3245 if (ctx->deltas[i].client == client)
adamc@682	3246 return &ctx->deltas[i];
adamc@671	3247
adamc@682	3248 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3249 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3250 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3251
adamc@682	3252 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3253 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3254 }
adamc@671	3255
adamc@682	3256 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3257 d->client = client;
adam@1369	3258 uw_buffer_reset(&d->msgs);
adamc@682	3259 return d;
adamc@671	3260 }
adamc@671	3261
adamc@668	3262 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3263 if (ctx->client == NULL)
adamc@682	3264 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3265
adamc@682	3266 return new_channel(ctx->client);
adamc@668	3267 }
adamc@668	3268
adamc@668	3269 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3270 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3271 size_t len;
adamc@682	3272 int preLen;
adamc@682	3273 char pre[INTS_MAX + 2];
adamc@668	3274
adamc@682	3275 len = strlen(msg);
adamc@682	3276
adamc@682	3277 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3278
adam@1369	3279 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3280 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3281 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3282
adamc@671	3283 return uw_unit_v;
adamc@668	3284 }
adamc@671	3285
adam@1327	3286 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3287 int i;
adamc@1131	3288 cleanup *cl;
adamc@1131	3289
adamc@1131	3290 if (ctx->client)
adamc@1131	3291 release_client(ctx->client);
adamc@1131	3292
adamc@1131	3293 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3294 cl->func(cl->arg);
adamc@1131	3295
adamc@1131	3296 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3297
adamc@1131	3298 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3299 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3300 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3301
adamc@1131	3302 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3303 if (ctx->transactionals[i].free)
adam@1327	3304 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3305
adam@1941	3306 if (ctx->app && ctx->transaction_started) {
adam@1941	3307 ctx->transaction_started = 0;
adam@1941	3308 return ctx->app->db_rollback(ctx);
adam@1941	3309 } else
adam@1941	3310 return 0;
adamc@1131	3311 }
adamc@1131	3312
adam@1956	3313 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	3314 const char uw_begin_html5[] = "<!DOCTYPE html><html>";
adam@1728	3315
adam@1877	3316 extern int uw_hash_blocksize;
adam@1877	3317
adam@1877	3318 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3319
adam@1877	3320 static char find_sig(char haystack) {
adam@1877	3321 int i;
adam@1877	3322 char *s = strstr(haystack, sig_intro);
adam@1877	3323
adam@1877	3324 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3325 return NULL;
phurst@1981	3326
adam@1877	3327 s += sizeof sig_intro - 1;
adam@1877	3328
adam@1877	3329 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3330 if (!isxdigit((int)s[i]))
adam@1877	3331 return NULL;
adam@1877	3332
adam@1877	3333 if (s[i] != '"')
adam@1877	3334 return NULL;
adam@1877	3335
adam@1877	3336 return s;
adam@1877	3337 }
adam@1877	3338
adam@2033	3339 static pthread_mutex_t message_send_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2033	3340
adam@1938	3341 int uw_commit(uw_context ctx) {
adamc@1104	3342 int i;
adam@1877	3343 char *sig;
adamc@1104	3344
adamc@1131	3345 if (uw_has_error(ctx)) {
adam@1327	3346 uw_rollback(ctx, 0);
adam@1938	3347 return 0;
adamc@1131	3348 }
adamc@1131	3349
adamc@1104	3350 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3351 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3352 if (ctx->transactionals[i].commit) {
adamc@1083	3353 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3354 if (uw_has_error(ctx)) {
adam@1327	3355 uw_rollback(ctx, 0);
adam@1938	3356 return 0;
adamc@1131	3357 }
adamc@1131	3358 }
adamc@771	3359
adam@2033	3360 // Here's an important lock to provide the abstraction that all messages from one transaction are sent as an atomic unit.
adam@2033	3361 if (ctx->used_deltas > 0)
adam@2033	3362 pthread_mutex_lock(&message_send_mutex);
adam@2033	3363
adam@2000	3364 if (ctx->transaction_started) {
adam@2000	3365 int code = ctx->app->db_commit(ctx);
adam@2000	3366
adam@2000	3367 if (code) {
adam@2033	3368 if (ctx->used_deltas > 0)
adam@2033	3369 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3370
adam@2000	3371 if (ctx->client)
adam@2000	3372 release_client(ctx->client);
adam@2000	3373
adam@2000	3374 if (code == -1) {
adam@2000	3375 // This case is for a serialization failure, which is not really an "error."
adam@2000	3376 // The transaction will restart, so we should rollback any transactionals
adam@2000	3377 // that triggered above.
adam@2000	3378
adam@2000	3379 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3380 if (ctx->transactionals[i].rollback != NULL)
adam@2000	3381 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2000	3382
adam@2000	3383 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3384 if (ctx->transactionals[i].free)
adam@2000	3385 ctx->transactionals[i].free(ctx->transactionals[i].data, 1);
adam@2000	3386
grrwlf@2030	3387 return 1;
adam@2000	3388 }
adam@2000	3389
adam@2000	3390 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3391 if (ctx->transactionals[i].free)
adam@2000	3392 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3393
adam@2000	3394 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@2000	3395 return 0;
adam@2000	3396 }
adam@2000	3397 }
adam@2000	3398
adamc@1104	3399 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3400 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3401 if (ctx->transactionals[i].commit) {
adamc@1083	3402 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3403 if (uw_has_error(ctx)) {
adam@2033	3404 if (ctx->used_deltas > 0)
adam@2033	3405 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3406
adam@2033	3407 if (ctx->client)
adam@2033	3408 release_client(ctx->client);
adam@2033	3409
adam@2033	3410 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3411 if (ctx->transactionals[i].rollback != NULL)
adam@2033	3412 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2033	3413
adam@2033	3414 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3415 if (ctx->transactionals[i].free)
adam@2033	3416 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3417
adam@1938	3418 return 0;
adamc@1131	3419 }
adamc@1131	3420 }
adamc@1131	3421
adamc@682	3422 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3423 delta *d = &ctx->deltas[i];
adamc@682	3424 client *c = find_client(d->client);
adamc@682	3425
adam@1551	3426 assert (c != NULL);
adam@1551	3427 assert(c->mode == USED);
adamc@682	3428
adam@1447	3429 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3430 }
adamc@682	3431
adam@2033	3432 if (ctx->used_deltas > 0)
adam@2033	3433 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3434
adamc@682	3435 if (ctx->client)
adamc@685	3436 release_client(ctx->client);
adamc@771	3437
adamc@1104	3438 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3439 if (ctx->transactionals[i].free)
adam@1327	3440 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3441
vshabanoff@1726	3442 uw_check(ctx, 1);
vshabanoff@1726	3443 *ctx->page.front = 0;
adam@1413	3444
adam@1956	3445 if (!ctx->returning_indirectly
adam@1956	3446 && (ctx->app->is_html5
adam@1956	3447 ? !strncmp(ctx->page.start, uw_begin_html5, sizeof uw_begin_html5 - 1)
adam@1956	3448 : !strncmp(ctx->page.start, uw_begin_xhtml, sizeof uw_begin_xhtml - 1))) {
adam@1728	3449 char *s;
adam@1728	3450
adam@1728	3451 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1956	3452 s = ctx->page.start + (ctx->app->is_html5 ? sizeof uw_begin_html5 - 1 : sizeof uw_begin_xhtml - 1);
adam@1728	3453 s = strchr(s, '<');
adam@1728	3454 if (s == NULL) {
adam@1728	3455 // Weird. Document has no tags!
adam@1728	3456
adam@1728	3457 uw_write(ctx, "<head></head><body></body>");
adam@1728	3458 uw_check(ctx, 1);
adam@1728	3459 *ctx->page.front = 0;
adam@1728	3460 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3461 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3462
adam@1729	3463 // Any freeform JavaScript to include?
adam@1729	3464 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3465 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3466 size_t lenP = lenH + 40 + len;
adam@1729	3467 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3468
adam@1729	3469 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3470 start += ctx->page.start - oldPage;
adam@1729	3471 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3472 ctx->page.front += lenP;
adam@1729	3473 memcpy(start, ctx->script_header, lenH);
adam@1729	3474 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3475 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3476 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3477 } else {
adam@1729	3478 size_t lenH = strlen(ctx->script_header);
adam@1729	3479 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3480
adam@1729	3481 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3482 start += ctx->page.start - oldPage;
adam@1729	3483 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3484 ctx->page.front += lenH;
adam@1729	3485 memcpy(start, ctx->script_header, lenH);
adam@1729	3486 }
adam@1728	3487 } else {
adam@1728	3488 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3489
adam@1729	3490 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3491 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3492 size_t lenP = lenH + 53 + len;
adam@1729	3493 char start = s, oldPage = ctx->page.start;
adam@1729	3494
adam@1729	3495 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3496 start += ctx->page.start - oldPage;
adam@1729	3497 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3498 ctx->page.front += lenP;
adam@1729	3499 memcpy(start, "<head>", 6);
adam@1729	3500 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3501 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3502 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3503 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3504 } else {
adam@1729	3505 size_t lenH = strlen(ctx->script_header);
adam@1729	3506 size_t lenP = lenH + 13;
adam@1729	3507 char start = s, oldPage = ctx->page.start;
adam@1729	3508
adam@1729	3509 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3510 start += ctx->page.start - oldPage;
adam@1729	3511 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3512 ctx->page.front += lenP;
adam@1729	3513 memcpy(start, "<head>", 6);
adam@1729	3514 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3515 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3516 }
adamc@916	3517 }
adamc@916	3518 }
adam@1877	3519
adam@1877	3520 if (ctx->needsResig) {
adam@1877	3521 sig = find_sig(ctx->page.start);
adam@1877	3522 if (sig) {
adam@1877	3523 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3524
adam@1877	3525 do {
adam@1877	3526 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3527 sig = find_sig(sig);
adam@1877	3528 } while (sig);
adam@1877	3529 }
adam@1877	3530 }
adam@1938	3531
adam@1938	3532 return 0;
adamc@671	3533 }
adamc@671	3534
adamc@683	3535
adamc@1113	3536 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3537
adam@2001	3538 int uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3539 uw_callback_with_retry free) {
adamc@771	3540 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3541 if (ctx->used_transactionals+1 > uw_transactionals_max)
adam@2001	3542 // Exceeded limit on number of transactionals.
adam@2001	3543 return -1;
adamc@1084	3544 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3545 ++ctx->n_transactionals;
adamc@771	3546 }
adamc@771	3547
adamc@771	3548 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3549 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3550 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3551 ctx->transactionals[ctx->used_transactionals++].free = free;
adam@2001	3552
adam@2001	3553 return 0;
adamc@771	3554 }
adamc@771	3555
adamc@683	3556
adamc@683	3557 // "Garbage collection"
adamc@683	3558
adamc@1121	3559 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3560 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3561
adamc@1121	3562 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3563 int r = setjmp(ctx->jmp_buf);
adamc@683	3564
adamc@1121	3565 if (r == 0)
adamc@1121	3566 uw_do_expunge(ctx, cli, data);
adamc@1121	3567 else
adamc@1121	3568 ctx->app->db_rollback(ctx);
adamc@1121	3569
adamc@1121	3570 uw_post_expunge(ctx, data);
adamc@683	3571
adamc@683	3572 return r;
adamc@683	3573 }
adamc@683	3574
adamc@683	3575 void uw_prune_clients(uw_context ctx) {
adamc@683	3576 client c, next, *prev = NULL;
adamc@683	3577 time_t cutoff;
adamc@683	3578
adamc@1094	3579 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3580
adamc@683	3581 pthread_mutex_lock(&clients_mutex);
adam@1707	3582 pruning_thread = pthread_self();
adam@1707	3583 pruning_thread_initialized = 1;
adamc@683	3584
adamc@683	3585 for (c = clients_used; c; c = next) {
adamc@683	3586 next = c->next;
adamc@683	3587 pthread_mutex_lock(&c->lock);
adamc@685	3588 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3589 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3590 if (prev)
adamc@683	3591 prev->next = next;
adamc@683	3592 else
adamc@683	3593 clients_used = next;
adamc@683	3594 while (fk == UNLIMITED_RETRY) {
adam@1941	3595 uw_reset(ctx);
adamc@1121	3596 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3597 if (fk == UNLIMITED_RETRY)
adamc@684	3598 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3599 }
adamc@684	3600 if (fk == SUCCESS)
adamc@684	3601 free_client(c);
adamc@1121	3602 else
adamc@856	3603 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3604 }
adamc@683	3605 else
adamc@683	3606 prev = c;
adamc@683	3607 pthread_mutex_unlock(&c->lock);
adamc@683	3608 }
adamc@683	3609
adamc@683	3610 pthread_mutex_unlock(&clients_mutex);
adamc@683	3611 }
adamc@687	3612
adamc@687	3613 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3614 int r = setjmp(ctx->jmp_buf);
adamc@687	3615
adamc@687	3616 if (r == 0) {
adam@1936	3617 uw_ensure_transaction(ctx);
adamc@1094	3618 ctx->app->initializer(ctx);
adamc@1094	3619 if (ctx->app->db_commit(ctx))
adamc@687	3620 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3621 }
adamc@687	3622
adamc@687	3623 return r;
adamc@687	3624 }
adamc@717	3625
adamc@1065	3626 static int url_bad(uw_Basis_string s) {
adamc@1065	3627 for (; *s; ++s)
adamc@1153	3628 if (!isgraph((int)*s))
adamc@1065	3629 return 1;
adamc@1065	3630
adamc@1065	3631 return 0;
adamc@1065	3632 }
adamc@1065	3633
adamc@717	3634 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3635 if (url_bad(s))
adamc@1065	3636 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3637 if (ctx->app->check_url(s))
adamc@770	3638 return s;
adamc@770	3639 else
adamc@770	3640 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3641 }
adamc@734	3642
adamc@770	3643 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3644 if (url_bad(s))
adamc@1065	3645 return NULL;
adamc@1094	3646 if (ctx->app->check_url(s))
adamc@770	3647 return s;
adamc@770	3648 else
adamc@770	3649 return NULL;
adamc@770	3650 }
adamc@770	3651
adam@1465	3652 static int mime_format(const char *s) {
adamc@770	3653 for (; *s; ++s)
grrwlf@2024	3654 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.' && *s != '+')
adamc@770	3655 return 0;
adamc@770	3656
adamc@770	3657 return 1;
adamc@770	3658 }
adamc@770	3659
adamc@741	3660 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3661 if (!mime_format(s))
adamc@770	3662 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3663
adamc@1094	3664 if (ctx->app->check_mime(s))
adamc@770	3665 return s;
adamc@770	3666 else
adamc@770	3667 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3668 }
adamc@770	3669
adamc@770	3670 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3671 if (!mime_format(s))
adamc@770	3672 return NULL;
adamc@770	3673
adamc@1094	3674 if (ctx->app->check_mime(s))
adamc@770	3675 return s;
adamc@770	3676 else
adamc@770	3677 return NULL;
adamc@741	3678 }
adamc@741	3679
adam@1465	3680 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3681 if (!mime_format(s))
adam@1465	3682 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3683
adam@1465	3684 if (ctx->app->check_requestHeader(s))
adam@1465	3685 return s;
adam@1465	3686 else
adam@1465	3687 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3688 }
adam@1465	3689
adam@1465	3690 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3691 if (!mime_format(s))
adam@1465	3692 return NULL;
adam@1465	3693
adam@1465	3694 if (ctx->app->check_requestHeader(s))
adam@1465	3695 return s;
adam@1465	3696 else
adam@1465	3697 return NULL;
adam@1465	3698 }
adam@1465	3699
adam@1465	3700 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3701 if (!mime_format(s))
adam@1465	3702 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3703
adam@1465	3704 if (ctx->app->check_responseHeader(s))
adam@1465	3705 return s;
adam@1465	3706 else
adam@1465	3707 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3708 }
adam@1465	3709
adam@1799	3710 static int envVar_format(const char *s) {
adam@1799	3711 for (; *s; ++s)
adam@1799	3712 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3713 return 0;
adam@1799	3714
adam@1799	3715 return 1;
adam@1799	3716 }
adam@1799	3717
adam@1465	3718 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3719 if (!envVar_format(s))
adam@1465	3720 return NULL;
adam@1465	3721
adam@1465	3722 if (ctx->app->check_responseHeader(s))
adam@1465	3723 return s;
adam@1465	3724 else
adam@1465	3725 return NULL;
adam@1465	3726 }
adam@1465	3727
adam@1799	3728 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3729 if (!envVar_format(s))
adam@1799	3730 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3731
adam@1799	3732 if (ctx->app->check_envVar(s))
adam@1799	3733 return s;
adam@1799	3734 else
adam@1799	3735 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3736 }
adam@1799	3737
adam@1799	3738 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3739 if (!mime_format(s))
adam@1799	3740 return NULL;
adam@1799	3741
adam@1799	3742 if (ctx->app->check_envVar(s))
adam@1799	3743 return s;
adam@1799	3744 else
adam@1799	3745 return NULL;
adam@1799	3746 }
adam@1799	3747
adam@1465	3748 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3749 return uw_Basis_requestHeader(ctx, name);
adam@1465	3750 }
adam@1465	3751
adam@1465	3752 static int mime_value_format(const char *s) {
adam@1465	3753 for (; *s; ++s)
adam@1465	3754 if (s == '\r' \|\| s == '\n')
adam@1465	3755 return 0;
adam@1465	3756
adam@1465	3757 return 1;
adam@1465	3758 }
adam@1465	3759
adam@1465	3760 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3761 if (!mime_value_format(value))
adam@1465	3762 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3763
adam@1465	3764 uw_write_header(ctx, name);
adam@1465	3765 uw_write_header(ctx, ": ");
adam@1465	3766 uw_write_header(ctx, value);
adam@1465	3767 uw_write_header(ctx, "\r\n");
adam@1465	3768
adam@1465	3769 return uw_unit_v;
adam@1465	3770 }
adam@1465	3771
adam@1799	3772 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1993	3773 if (ctx->get_env)
adam@1993	3774 return ctx->get_env(ctx->get_env_data, name);
adam@1993	3775 else
adam@1994	3776 return getenv(name);
adam@1799	3777 }
adam@1799	3778
adamc@734	3779 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3780 return s ? s : "";
adamc@734	3781 }
adamc@734	3782
adamc@734	3783 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3784 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3785 int i;
phurst@1981	3786
adamc@734	3787 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3788 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3789
adamc@734	3790 return r;
adamc@734	3791 }
adamc@734	3792
adam@1512	3793 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3794 * optimizations that would enable timing attacks. See:
adam@1512	3795 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3796 */
adam@1512	3797 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3798 int i, x = 0, len1 = strlen(s1);
adam@1512	3799
adam@1512	3800 if (len1 != strlen(s2)) return 0;
adam@1512	3801
adam@1512	3802 for (i = 0; i < len1; ++i) {
adam@1512	3803 __asm__ __volatile__ ("");
adam@1512	3804 x \|= s1[i] ^ s2[i];
adam@1512	3805 }
adam@1512	3806
adam@1512	3807 return x == 0;
adam@1512	3808 }
adam@1512	3809
adamc@734	3810 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3811 ctx->usedSig = 1;
adamc@1094	3812 return ctx->app->cookie_sig(ctx);
adamc@734	3813 }
adamc@737	3814
adamc@737	3815 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3816 return f.name;
adamc@737	3817 }
adamc@737	3818
adamc@740	3819 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3820 return f.type;
adamc@740	3821 }
adamc@740	3822
adamc@745	3823 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3824 return b.size;
adamc@745	3825 }
adamc@745	3826
adamc@1119	3827 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3828 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3829
adamc@1119	3830 return b;
adamc@1119	3831 }
adamc@1119	3832
adamc@737	3833 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3834 return f.data;
adamc@737	3835 }
adamc@741	3836
adam@1347	3837 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3838 return pb.type;
adam@1347	3839 }
adam@1347	3840
adam@1347	3841 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3842 return pb.data;
adam@1347	3843 }
adam@1347	3844
adam@1471	3845 static char *old_headers(uw_context ctx) {
adam@1471	3846 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3847 return NULL;
adam@1471	3848 else {
adam@1471	3849 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3850
adam@1471	3851 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3852 return NULL;
adam@1471	3853 else {
adam@1471	3854 s = strchr(s+15, '\n');
adam@1471	3855 if (s == NULL)
adam@1471	3856 return NULL;
adam@1471	3857 else
adam@1471	3858 return uw_strdup(ctx, s+1);
adam@1471	3859 }
adam@1471	3860 }
adam@1471	3861 }
adam@1471	3862
adamc@741	3863 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3864 cleanup *cl;
adamc@741	3865 int len;
adam@1471	3866 char *oldh;
adamc@741	3867
adam@1451	3868 if (!ctx->allowed_to_return_indirectly)
adam@1451	3869 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3870
adamc@1065	3871 ctx->returning_indirectly = 1;
adam@1471	3872 oldh = old_headers(ctx);
adam@1369	3873 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3874 uw_buffer_reset(&ctx->page);
adamc@741	3875
adamc@856	3876 uw_write_header(ctx, on_success);
adamc@856	3877 uw_write_header(ctx, "Content-Type: ");
adamc@741	3878 uw_write_header(ctx, mimeType);
adam@1934	3879 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369	3880 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3881 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3882 ctx->outHeaders.front += len;
adamc@1066	3883 uw_write_header(ctx, "\r\n");
adam@1471	3884 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3885
adam@1369	3886 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3887
adamc@741	3888 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3889 cl->func(cl->arg);
adamc@741	3890
adamc@741	3891 ctx->cleanup_front = ctx->cleanup;
adamc@741	3892
adamc@1065	3893 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3894 }
adamc@1065	3895
adam@2046	3896 void uw_replace_page(uw_context ctx, const char *data, size_t size) {
adam@2046	3897 uw_buffer_reset(&ctx->page);
adam@2046	3898 ctx_uw_buffer_append(ctx, "page", &ctx->page, data, size);
adam@2046	3899 }
adam@2046	3900
adam@1932	3901 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932	3902 cleanup *cl;
adam@1932	3903 int len;
adam@1932	3904 char *oldh;
adam@1932	3905
adam@1932	3906 if (!ctx->allowed_to_return_indirectly)
adam@1932	3907 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932	3908
adam@1932	3909 ctx->returning_indirectly = 1;
adam@1932	3910 oldh = old_headers(ctx);
adam@1932	3911 uw_buffer_reset(&ctx->outHeaders);
adam@1932	3912
adam@1932	3913 uw_write_header(ctx, on_success);
adam@1932	3914 uw_write_header(ctx, "Content-Type: ");
adam@1932	3915 uw_write_header(ctx, mimeType);
adam@1934	3916 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932	3917 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932	3918 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932	3919 ctx->outHeaders.front += len;
adam@1932	3920 uw_write_header(ctx, "\r\n");
adam@1932	3921 if (oldh) uw_write_header(ctx, oldh);
adam@1932	3922
adam@1932	3923 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932	3924 cl->func(cl->arg);
adam@1932	3925
adam@1932	3926 ctx->cleanup_front = ctx->cleanup;
adam@1932	3927
adam@1932	3928 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932	3929 }
adam@1932	3930
adamc@1065	3931 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3932 cleanup *cl;
adamc@1066	3933 char *s;
adam@1471	3934 char *oldh;
adamc@1065	3935
adam@1451	3936 if (!ctx->allowed_to_return_indirectly)
adam@1451	3937 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3938
adamc@1065	3939 ctx->returning_indirectly = 1;
adam@1471	3940 oldh = old_headers(ctx);
adam@1369	3941 uw_buffer_reset(&ctx->page);
adam@1369	3942 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3943 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3944 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3945 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3946
adam@1409	3947 if (on_success[0])
adam@1409	3948 uw_write_header(ctx, on_redirect);
adam@1409	3949 else
adam@1409	3950 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3951 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3952 if (s) {
adamc@1066	3953 char *s2;
adam@1409	3954 if (s[0] == '\n') ++s;
adam@1409	3955 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3956 *s2 = 0;
adamc@1066	3957 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3958 uw_write_header(ctx, s);
adamc@1066	3959 uw_write_header(ctx, "\n");
adamc@1066	3960 }
adamc@1066	3961 }
adamc@1066	3962 }
adamc@1066	3963
adamc@1065	3964 uw_write_header(ctx, "Location: ");
adamc@1065	3965 uw_write_header(ctx, url);
adamc@1065	3966 uw_write_header(ctx, "\r\n\r\n");
adam@1471	3967 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	3968
adamc@1065	3969 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3970 cl->func(cl->arg);
adamc@1065	3971
adamc@1065	3972 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3973
adamc@1065	3974 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3975 }
adamc@874	3976
adamc@874	3977 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	3978 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	3979
adamc@874	3980 for (; *s; ++s) {
adamc@874	3981 if (s[0] == '\'') {
adamc@874	3982 *r++ = '\'';
adamc@874	3983 for (++s; *s; ++s) {
adamc@874	3984 if (s[0] == '\'') {
adamc@874	3985 *r++ = '\'';
adamc@874	3986 break;
adamc@874	3987 } else if (s[0] == '\\') {
adam@1467	3988 *r++ = '\\';
adam@1467	3989 *r++ = s[1];
adam@1467	3990 ++s;
adamc@874	3991 } else
adamc@874	3992 *r++ = s[0];
adamc@874	3993 }
adamc@874	3994 if (*s == 0) break;
adam@1467	3995 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	3996 s += 3;
adamc@874	3997 else
adamc@874	3998 *r++ = s[0];
adamc@874	3999 }
adamc@874	4000
adam@1467	4001 *r = 0;
adam@1467	4002 return ret;
adamc@874	4003 }
adamc@874	4004
adamc@922	4005 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	4006 va_list ap;
adamc@922	4007 size_t len = 1;
adamc@922	4008 char s, r, *s2;
phurst@1981	4009
adamc@922	4010 va_start(ap, ctx);
adamc@922	4011 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4012 len += strlen(s);
adamc@922	4013 va_end(ap);
adamc@922	4014
adamc@922	4015 r = uw_malloc(ctx, len);
adamc@922	4016 va_start(ap, ctx);
adamc@922	4017 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4018 while (*s)
adamc@922	4019 s2++ = s++;
adamc@922	4020 va_end(ap);
adamc@922	4021 *s2 = 0;
adamc@922	4022
adamc@922	4023 return r;
adamc@922	4024 }
adamc@1006	4025
adam@1365	4026 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	4027
adamc@1006	4028 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	4029 uw_Basis_time r = { time(NULL) };
adam@1365	4030 return r;
adamc@1006	4031 }
adamc@1061	4032
adam@1369	4033 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	4034 tm.seconds += n;
adam@1365	4035 return tm;
adamc@1138	4036 }
adamc@1138	4037
adam@1514	4038 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	4039 return difftime(tm2.seconds, tm1.seconds);
adam@1514	4040 }
adam@1514	4041
adam@1685	4042 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	4043 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	4044 }
adam@1685	4045
adam@1685	4046 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	4047 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	4048 }
adam@1685	4049
adam@1514	4050 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	4051 return tm.seconds;
adam@1514	4052 }
adam@1514	4053
phurst@1971	4054 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	4055 struct tm tm = { .tm_year = year - 1900, .tm_mon = month, .tm_mday = day,
adam@2015	4056 .tm_hour = hour, .tm_min = minute, .tm_sec = second,
adam@2015	4057 .tm_isdst = -1 };
phurst@1984	4058 uw_Basis_time r = { timelocal(&tm) };
phurst@1971	4059 return r;
phurst@1971	4060 }
phurst@1971	4061
phurst@1971	4062 uw_Basis_int uw_Basis_datetimeYear(uw_context ctx, uw_Basis_time time) {
phurst@1971	4063 struct tm tm;
phurst@1982	4064 localtime_r(&time.seconds, &tm);
phurst@1971	4065 return tm.tm_year + 1900;
phurst@1971	4066 }
phurst@1971	4067
phurst@1971	4068 uw_Basis_int uw_Basis_datetimeMonth(uw_context ctx, uw_Basis_time time) {
phurst@1971	4069 struct tm tm;
phurst@1982	4070 localtime_r(&time.seconds, &tm);
phurst@1971	4071 return tm.tm_mon;
phurst@1971	4072 }
phurst@1971	4073
phurst@1971	4074 uw_Basis_int uw_Basis_datetimeDay(uw_context ctx, uw_Basis_time time) {
phurst@1971	4075 struct tm tm;
phurst@1982	4076 localtime_r(&time.seconds, &tm);
phurst@1971	4077 return tm.tm_mday;
phurst@1971	4078 }
phurst@1971	4079
phurst@1971	4080 uw_Basis_int uw_Basis_datetimeHour(uw_context ctx, uw_Basis_time time) {
phurst@1971	4081 struct tm tm;
phurst@1982	4082 localtime_r(&time.seconds, &tm);
phurst@1971	4083 return tm.tm_hour;
phurst@1971	4084 }
phurst@1971	4085
phurst@1971	4086 uw_Basis_int uw_Basis_datetimeMinute(uw_context ctx, uw_Basis_time time) {
phurst@1971	4087 struct tm tm;
phurst@1982	4088 localtime_r(&time.seconds, &tm);
phurst@1971	4089 return tm.tm_min;
phurst@1971	4090 }
phurst@1971	4091
phurst@1971	4092 uw_Basis_int uw_Basis_datetimeSecond(uw_context ctx, uw_Basis_time time) {
phurst@1971	4093 struct tm tm;
phurst@1982	4094 localtime_r(&time.seconds, &tm);
phurst@1971	4095 return tm.tm_sec;
phurst@1971	4096 }
phurst@1971	4097
phurst@1973	4098 uw_Basis_int uw_Basis_datetimeDayOfWeek(uw_context ctx, uw_Basis_time time) {
phurst@1973	4099 struct tm tm;
phurst@1982	4100 localtime_r(&time.seconds, &tm);
phurst@1973	4101 return tm.tm_wday;
phurst@1973	4102 }
phurst@1971	4103
phurst@1971	4104
adamc@1061	4105 void uw_get_global(uw_context ctx, char name) {
adamc@1061	4106 int i;
adamc@1061	4107
adamc@1061	4108 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4109 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	4110 return ctx->globals[i].data;
adamc@1061	4111
adamc@1061	4112 return NULL;
adamc@1061	4113 }
adamc@1061	4114
adamc@1113	4115 size_t uw_globals_max = SIZE_MAX;
adamc@1113	4116
adamc@1061	4117 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	4118 int i;
adamc@1061	4119
adamc@1061	4120 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4121 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	4122 if (ctx->globals[i].free)
adamc@1061	4123 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	4124 ctx->globals[i].data = data;
adamc@1061	4125 ctx->globals[i].free = free;
adamc@1061	4126 return;
adamc@1061	4127 }
adamc@1089	4128
adamc@1113	4129 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	4130 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	4131
adamc@1061	4132 ++ctx->n_globals;
adamc@1061	4133 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	4134 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	4135 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	4136 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	4137 }
adamc@1061	4138
adamc@1061	4139 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	4140 return !!isalnum((int)c);
adamc@1061	4141 }
adamc@1061	4142
adamc@1061	4143 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	4144 return !!isalpha((int)c);
adamc@1061	4145 }
adamc@1061	4146
adamc@1061	4147 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	4148 return !!isblank((int)c);
adamc@1061	4149 }
adamc@1061	4150
adamc@1061	4151 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	4152 return !!iscntrl((int)c);
adamc@1061	4153 }
adamc@1061	4154
adamc@1061	4155 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4156 return !!isdigit((int)c);
adamc@1061	4157 }
adamc@1061	4158
adamc@1061	4159 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	4160 return !!isgraph((int)c);
adamc@1061	4161 }
adamc@1061	4162
adamc@1061	4163 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4164 return !!islower((int)c);
adamc@1061	4165 }
adamc@1061	4166
adamc@1061	4167 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	4168 return !!isprint((int)c);
adamc@1061	4169 }
adamc@1061	4170
adamc@1061	4171 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	4172 return !!ispunct((int)c);
adamc@1061	4173 }
adamc@1061	4174
adamc@1061	4175 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	4176 return !!isspace((int)c);
adamc@1061	4177 }
adamc@1063	4178
adamc@1061	4179 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4180 return !!isupper((int)c);
adamc@1061	4181 }
adamc@1061	4182
adamc@1061	4183 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4184 return !!isxdigit((int)c);
adamc@1061	4185 }
adamc@1061	4186
adamc@1061	4187 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4188 return tolower((int)c);
adamc@1061	4189 }
adamc@1061	4190
adamc@1061	4191 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4192 return toupper((int)c);
adamc@1061	4193 }
adamc@1066	4194
adamc@1128	4195 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	4196 return (unsigned char)c;
adamc@1128	4197 }
adamc@1128	4198
adamc@1128	4199 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	4200 return n;
adamc@1128	4201 }
adamc@1128	4202
adamc@1066	4203 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	4204 return ctx->current_url;
adamc@1066	4205 }
adamc@1066	4206
adamc@1066	4207 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	4208 ctx->current_url = s;
adamc@1066	4209 }
adamc@1114	4210
adamc@1114	4211 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	4212 ctx->deadline = n;
adamc@1114	4213 }
adamc@1114	4214
adamc@1114	4215 void uw_check_deadline(uw_context ctx) {
adamc@1114	4216 if (uw_time > ctx->deadline)
adamc@1114	4217 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	4218 }
adamc@1115	4219
adamc@1115	4220 size_t uw_database_max = SIZE_MAX;
adamc@1120	4221
adam@1389	4222 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@2143	4223 if (ctx->loggers->log_debug)
adam@2143	4224 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@2143	4225 else
adam@2143	4226 fprintf(stderr, "%s\n", s);
adam@1389	4227 return 0;
adam@1389	4228 }
adam@1389	4229
adamc@1120	4230 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
grrwlf@1997	4231 if (ctx->loggers->log_debug)
grrwlf@1997	4232 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@1334	4233 else
adam@1334	4234 fprintf(stderr, "%s\n", s);
adamc@1120	4235 return uw_unit_v;
adamc@1120	4236 }
adamc@1250	4237
adamc@1250	4238 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@2104	4239 int r = my_rand();
adam@2104	4240
adam@2104	4241 if (r >= 0)
adam@2104	4242 return r;
adam@1486	4243 else
adam@1486	4244 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	4245 }
adam@1347	4246
adam@1347	4247 void uw_noPostBody(uw_context ctx) {
adam@1347	4248 ctx->hasPostBody = 0;
adam@1347	4249 }
adam@1347	4250
adam@1347	4251 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	4252 ctx->hasPostBody = 1;
adam@1347	4253 ctx->postBody = pb;
adam@1347	4254 }
adam@1347	4255
adam@1347	4256 int uw_hasPostBody(uw_context ctx) {
adam@1347	4257 return ctx->hasPostBody;
adam@1347	4258 }
adam@1347	4259
adam@1386	4260 void uw_isPost(uw_context ctx) {
adam@1386	4261 ctx->isPost = 1;
adam@1386	4262 }
adam@1386	4263
adam@1386	4264 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4265 return ctx->isPost;
adam@1386	4266 }
adam@1386	4267
adam@1485	4268 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4269 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4270 }
adam@1485	4271
adam@1370	4272 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4273 ctx->queryString = s;
adam@1370	4274 }
adam@1370	4275
adam@1370	4276 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4277 return ctx->queryString;
adam@1370	4278 }
adam@1370	4279
adam@1347	4280 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4281 if (ctx->hasPostBody)
adam@1347	4282 return ctx->postBody;
adam@1347	4283 else
adam@1347	4284 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4285 }
adam@1349	4286
adam@1349	4287 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4288 int r = setjmp(ctx->jmp_buf);
adam@1349	4289
adam@1349	4290 if (r == 0) {
adam@1936	4291 uw_ensure_transaction(ctx);
adam@1418	4292
adam@1349	4293 callback(ctx);
adam@1349	4294 }
adam@1349	4295
adam@1349	4296 return r;
adam@1349	4297 }
adam@1360	4298
adam@1360	4299 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4300 char buf[14];
adam@1397	4301 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4302 }
adam@1365	4303
adam@1365	4304 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4305 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	4306 }
adam@1365	4307
adam@1365	4308 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@2034	4309 return !!(t1.seconds < t2.seconds \|\| (t1.seconds == t2.seconds && t1.microseconds < t2.microseconds));
adam@1365	4310 }
adam@1365	4311
adam@1365	4312 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4313 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4314 }
adam@1365	4315
adam@1372	4316 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4317 struct tm stm = {};
adam@1375	4318 char *end = strchr(s, 0);
adam@1449	4319 stm.tm_isdst = -1;
adam@1375	4320
adam@1632	4321 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4322 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4323
kkallio@1448	4324 r->seconds = timegm(&stm);
adam@1373	4325 r->microseconds = 0;
adam@1373	4326
adam@1373	4327 return r;
adam@1374	4328 }
adam@1374	4329 else
adam@1373	4330 return NULL;
adam@1372	4331 }
adam@1407	4332
adam@1407	4333 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4334 int r = setjmp(ctx->jmp_buf);
adam@1407	4335
adam@1407	4336 if (ctx->app->on_error) {
adam@1407	4337 if (r == 0) {
adam@1936	4338 uw_ensure_transaction(ctx);
adam@1407	4339
adam@1409	4340 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4341 if (on_success[0])
adam@1409	4342 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4343 else
adam@1409	4344 uw_write_header(ctx, "Status: ");
adam@1409	4345 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919	4346 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1956	4347 uw_write(ctx, ctx->app->is_html5 ? uw_begin_html5 : uw_begin_xhtml);
adam@1407	4348 ctx->app->on_error(ctx, msg);
adam@1407	4349 uw_write(ctx, "</html>");
adam@1407	4350 }
adam@1407	4351
adam@1407	4352 return r;
adam@1407	4353 } else
adam@1407	4354 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4355 }
adam@1451	4356
adam@1451	4357 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4358 ctx->allowed_to_return_indirectly = 1;
adam@1451	4359 }
adam@1483	4360
adam@1556	4361 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4362 int len;
adam@1703	4363 char *r;
adam@1703	4364
adam@1703	4365 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4366 r = ctx->heap.front;
adam@1703	4367 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4368 ctx->heap.front += len+1;
adam@1703	4369 return r;
adam@1556	4370 }
adam@1571	4371
adam@1571	4372 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4373 return n;
adam@1571	4374 }
adam@1571	4375
adam@1571	4376 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4377 return ceil(n);
adam@1571	4378 }
adam@1571	4379
adam@1571	4380 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4381 return trunc(n);
adam@1571	4382 }
adam@1571	4383
adam@1571	4384 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4385 return round(n);
adam@1571	4386 }
adam@1755	4387
adam@1755	4388 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755	4389 char *p;
adam@1755	4390
adam@1755	4391 for (p = s; *p; ++p) {
adam@1755	4392 char c = *p;
adam@1801	4393 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755	4394 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4395 }
adam@1755	4396
adam@1755	4397 return s;
adam@1755	4398 }
adam@1755	4399
adam@1755	4400 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4401 char *p;
adam@1755	4402
adam@1755	4403 for (p = s; *p; ++p) {
adam@1755	4404 char c = *p;
adam@1801	4405 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4406 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4407 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4408 }
adam@1755	4409
adam@1755	4410 return s;
adam@1755	4411 }
adam@1755	4412
adam@1755	4413 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4414 char *p;
adam@1755	4415
adam@1755	4416 if (!*s)
adam@1755	4417 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4418
adam@1801	4419 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4420 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4421
adam@1755	4422 for (p = s; *p; ++p) {
adam@1755	4423 char c = *p;
adam@1801	4424 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4425 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4426 }
adam@1755	4427
adam@1755	4428 return s;
adam@1755	4429 }
adam@1787	4430
adam@1787	4431 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4432 return f.name;
adam@1787	4433 }
adam@1787	4434
adam@1787	4435 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4436 return f.value;
adam@1787	4437 }
adam@1787	4438
adam@1787	4439 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4440 return f.remaining;
adam@1787	4441 }
adam@1787	4442
adam@1787	4443 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4444 char *unurl;
adam@1787	4445 uw_Basis_postField *f;
adam@1787	4446
adam@1788	4447 if (!ctx->hasPostBody)
adam@1788	4448 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4449
adam@1788	4450 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4451 return NULL;
adam@1787	4452
adam@1787	4453 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4454 unurl = s;
adam@1787	4455 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4456 s = strchr(s, 0);
adam@1788	4457 if (!s)
adam@1788	4458 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4459 ++s;
adam@1788	4460 unurl = s;
adam@1788	4461 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4462 s = strchr(s, 0);
adam@1788	4463 if (!s)
adam@1788	4464 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4465 f->remaining = s+1;
adam@1787	4466
adam@1787	4467 return f;
adam@1787	4468 }
adam@2008	4469
adam@2008	4470 uw_Basis_string uw_Basis_blessData(uw_context ctx, uw_Basis_string s) {
adam@2008	4471 char *p = s;
adam@2008	4472
adam@2008	4473 for (; *p; ++p)
adam@2008	4474 if (!isalnum(p) && p != '-' && *p != '_')
adam@2008	4475 uw_error(ctx, FATAL, "Illegal HTML5 data-* attribute: %s", s);
adam@2008	4476
adam@2008	4477 return s;
adam@2008	4478 }
adam@2073	4479
adam@2073	4480 int uw_remoteSock(uw_context ctx) {
adam@2073	4481 return ctx->remoteSock;
adam@2073	4482 }
adam@2073	4483
adam@2073	4484 void uw_set_remoteSock(uw_context ctx, int sock) {
adam@2073	4485 ctx->remoteSock = sock;
adam@2073	4486 }

Mercurial > urweb

annotate src/c/urweb.c @ 2160:72fe1cc704c5