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

annotate src/c/urweb.c @ 2000:bddee3af70c4

Tweaking uw_commit() logic, partly to fix a resource clean-up bug on SQL serialization failures

author	Adam Chlipala <adam@chlipala.net>
date	Tue, 15 Apr 2014 19:12:49 -0400
parents	cc7e5d469d1b
children	16f5f136a807

rev	line source
adamc@1268	1 #include "config.h"
adamc@1268	2
adamc@117	3 #include <stdlib.h>
adamc@102	4 #include <stdio.h>
adamc@117	5 #include <string.h>
adamc@457	6 #include <strings.h>
adamc@106	7 #include <ctype.h>
adamc@167	8 #include <setjmp.h>
adamc@167	9 #include <stdarg.h>
adamc@682	10 #include <assert.h>
adamc@741	11 #include <ctype.h>
adamc@1114	12 #include <limits.h>
adamc@1113	13 #include <stdint.h>
adamc@1094	14 #include <sys/types.h>
adamc@1094	15 #include <sys/socket.h>
adam@1397	16 #include <openssl/des.h>
adam@1486	17 #include <openssl/rand.h>
adam@1374	18 #include <time.h>
adam@1571	19 #include <math.h>
adamc@102	20
adamc@667	21 #include <pthread.h>
adamc@667	22
adamc@102	23 #include "types.h"
adamc@102	24
adam@1431	25 uw_unit uw_unit_v = 0;
adamc@102	26
adamc@667	27
adamc@667	28 // Socket extras
adamc@667	29
adamc@863	30 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667	31 while (len > 0) {
adamc@856	32 ssize_t n = send(sock, buf, len, 0);
adamc@856	33
adamc@856	34 if (n < 0)
adamc@856	35 return n;
adamc@856	36
adamc@856	37 buf += n;
adamc@856	38 len -= n;
adamc@856	39 }
adamc@856	40
adamc@856	41 return 0;
adamc@856	42 }
adamc@856	43
adamc@856	44 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856	45 while (len > 0) {
adamc@856	46 ssize_t n = write(fd, buf, len);
adamc@667	47
adamc@667	48 if (n < 0)
adamc@667	49 return n;
adamc@667	50
adamc@667	51 buf += n;
adamc@667	52 len -= n;
adamc@667	53 }
adamc@667	54
adamc@667	55 return 0;
adamc@667	56 }
adamc@667	57
adamc@667	58
adamc@667	59 // Buffers
adamc@667	60
adam@1369	61 void uw_buffer_init(size_t max, uw_buffer *b, size_t s) {
adamc@1113	62 b->max = max;
adamc@667	63 b->front = b->start = malloc(s);
adamc@667	64 b->back = b->front + s;
adamc@667	65 }
adamc@667	66
adam@1369	67 void uw_buffer_free(uw_buffer *b) {
adamc@667	68 free(b->start);
adamc@667	69 }
adamc@667	70
adam@1369	71 void uw_buffer_reset(uw_buffer *b) {
adamc@667	72 b->front = b->start;
adamc@667	73 }
adamc@667	74
adam@1369	75 int uw_buffer_check(uw_buffer *b, size_t extra) {
adamc@667	76 if (b->back - b->front < extra) {
adamc@667	77 size_t desired = b->front - b->start + extra, next;
adamc@667	78 char *new_heap;
adamc@667	79
adamc@667	80 next = b->back - b->start;
adamc@667	81 if (next == 0)
adamc@667	82 next = 1;
adamc@667	83 for (; next < desired; next *= 2);
adamc@667	84
adamc@1134	85 if (next > b->max) {
adamc@1113	86 if (desired <= b->max)
adamc@1113	87 next = desired;
adamc@1113	88 else
adamc@1113	89 return 1;
adamc@1134	90 }
adamc@1113	91
adamc@667	92 new_heap = realloc(b->start, next);
adamc@667	93 b->front = new_heap + (b->front - b->start);
adamc@667	94 b->back = new_heap + next;
adamc@667	95 b->start = new_heap;
adamc@667	96 }
adamc@1113	97
adamc@1113	98 return 0;
adamc@1113	99 }
adamc@1113	100
adamc@1113	101 __attribute__((noreturn)) void uw_error(uw_context, failure_kind, const char *, ...);
adamc@1113	102
adam@1369	103 static void ctx_uw_buffer_check(uw_context ctx, const char kind, uw_buffer b, size_t extra) {
adam@1369	104 if (uw_buffer_check(b, extra))
adamc@1113	105 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@667	106 }
adamc@667	107
adam@1369	108 size_t uw_buffer_used(uw_buffer *b) {
adamc@667	109 return b->front - b->start;
adamc@667	110 }
adamc@667	111
adam@1369	112 size_t uw_buffer_avail(uw_buffer *b) {
adamc@667	113 return b->back - b->start;
adamc@667	114 }
adamc@667	115
adam@1369	116 int uw_buffer_append(uw_buffer b, const char s, size_t len) {
adam@1369	117 if (uw_buffer_check(b, len+1))
adamc@1113	118 return 1;
adamc@1113	119
adamc@1113	120 memcpy(b->front, s, len);
adamc@1113	121 b->front += len;
adamc@1113	122 *b->front = 0;
adamc@1113	123
adamc@1113	124 return 0;
adamc@1113	125 }
adamc@1113	126
adam@1369	127 static void ctx_uw_buffer_append(uw_context ctx, const char kind, uw_buffer b, const char *s, size_t len) {
adam@1369	128 ctx_uw_buffer_check(ctx, kind, b, len+1);
adamc@1113	129
adamc@668	130 memcpy(b->front, s, len);
adamc@668	131 b->front += len;
adamc@672	132 *b->front = 0;
adamc@668	133 }
adamc@667	134
adamc@668	135
adamc@672	136 // Persistent state types
adamc@667	137
adamc@667	138 typedef enum { UNUSED, USED } usage;
adamc@667	139
adamc@667	140 typedef struct client {
adamc@682	141 unsigned id;
adamc@667	142 usage mode;
adamc@682	143 int pass;
adamc@682	144 struct client *next;
adamc@689	145 pthread_mutex_t lock, pull_lock;
adam@1369	146 uw_buffer msgs;
adamc@682	147 int sock;
adamc@863	148 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	149 int (*close)(int fd);
adamc@682	150 time_t last_contact;
adamc@682	151 unsigned n_channels;
adamc@685	152 unsigned refcount;
adamc@1121	153 void *data;
adamc@667	154 } client;
adamc@667	155
adamc@672	156
adamc@672	157 // Persistent client state
adamc@672	158
adamc@682	159 static client *clients, clients_free, *clients_used;
adamc@682	160 static unsigned n_clients;
adamc@667	161
adam@1707	162 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@1113	163 size_t uw_messages_max = SIZE_MAX;
adamc@1113	164 size_t uw_clients_max = SIZE_MAX;
adamc@1113	165
adamc@1121	166 void *uw_init_client_data();
adamc@1121	167 void uw_free_client_data(void *);
adamc@1121	168 void uw_copy_client_data(void dst, void src);
adamc@1121	169
adamc@682	170 static client *new_client() {
adamc@667	171 client *c;
adamc@667	172
adamc@667	173 pthread_mutex_lock(&clients_mutex);
adamc@667	174
adamc@667	175 if (clients_free) {
adamc@667	176 c = clients_free;
adamc@682	177 clients_free = clients_free->next;
adamc@667	178 }
adam@1672	179 else if (n_clients >= uw_clients_max) {
adam@1672	180 pthread_mutex_unlock(&clients_mutex);
adamc@1113	181 return NULL;
adam@1672	182 } else {
adamc@667	183 ++n_clients;
adamc@667	184 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	185 c = malloc(sizeof(client));
adamc@667	186 c->id = n_clients-1;
adamc@682	187 pthread_mutex_init(&c->lock, NULL);
adamc@689	188 pthread_mutex_init(&c->pull_lock, NULL);
adam@1369	189 uw_buffer_init(uw_messages_max, &c->msgs, 0);
adamc@667	190 clients[n_clients-1] = c;
adamc@667	191 }
adamc@667	192
adamc@682	193 pthread_mutex_lock(&c->lock);
adamc@667	194 c->mode = USED;
adamc@682	195 c->pass = rand();
adamc@682	196 c->sock = -1;
adamc@682	197 c->last_contact = time(NULL);
adam@1369	198 uw_buffer_reset(&c->msgs);
adamc@682	199 c->n_channels = 0;
adamc@685	200 c->refcount = 0;
adamc@1121	201 c->data = uw_init_client_data();
adamc@682	202 pthread_mutex_unlock(&c->lock);
adamc@682	203
adamc@682	204 c->next = clients_used;
adamc@682	205 clients_used = c;
adamc@667	206
adamc@667	207 pthread_mutex_unlock(&clients_mutex);
adamc@667	208
adamc@667	209 return c;
adamc@667	210 }
adamc@667	211
adamc@685	212 static void use_client(client *c) {
adamc@685	213 pthread_mutex_lock(&c->lock);
adamc@685	214 ++c->refcount;
adamc@685	215 pthread_mutex_unlock(&c->lock);
adamc@689	216 pthread_mutex_lock(&c->pull_lock);
adamc@685	217 }
adamc@685	218
adamc@685	219 static void release_client(client *c) {
adamc@689	220 pthread_mutex_unlock(&c->pull_lock);
adamc@685	221 pthread_mutex_lock(&c->lock);
adamc@685	222 --c->refcount;
adamc@685	223 pthread_mutex_unlock(&c->lock);
adamc@685	224 }
adamc@685	225
adamc@856	226 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adam@1707	227 static pthread_t pruning_thread;
adam@1707	228 static int pruning_thread_initialized = 0;
adamc@667	229
adamc@682	230 static client *find_client(unsigned id) {
adamc@667	231 client *c;
adam@1708	232 int i_am_pruner = pruning_thread_initialized && pthread_equal(pruning_thread, pthread_self());
adam@1708	233
adam@1708	234 if (!i_am_pruner) pthread_mutex_lock(&clients_mutex);
adamc@667	235
adamc@667	236 if (id >= n_clients) {
adam@1708	237 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	238 return NULL;
adamc@667	239 }
adamc@667	240
adamc@667	241 c = clients[id];
adamc@667	242
adam@1708	243 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	244 return c;
adamc@668	245 }
adamc@668	246
adamc@856	247 static char *on_success = "HTTP/1.1 200 OK\r\n";
adam@1409	248 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	249
adamc@856	250 void uw_set_on_success(char *s) {
adamc@856	251 on_success = s;
adamc@856	252 }
adamc@856	253
adam@1552	254 static void chastise(int (send)(int sockfd, const void buf, ssize_t len), int sock) {
adam@1552	255 send(sock, on_success, strlen(on_success));
adam@1552	256 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1552	257 send(sock, "R", 1);
adam@1552	258 close(sock);
adam@1552	259 }
adam@1552	260
adamc@863	261 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	262 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	263 int (*close)(int fd),
adamc@864	264 void *logger_data, uw_logger log_error) {
adamc@682	265 client *c = find_client(id);
adamc@668	266
adamc@668	267 if (c == NULL) {
adam@1552	268 chastise(send, sock);
adamc@864	269 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	270 return;
adamc@667	271 }
adamc@667	272
adamc@682	273 pthread_mutex_lock(&c->lock);
adamc@671	274
adamc@682	275 if (c->mode != USED) {
adamc@682	276 pthread_mutex_unlock(&c->lock);
adam@1552	277 chastise(send, sock);
adamc@864	278 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	279 return;
adamc@667	280 }
adamc@667	281
adamc@682	282 if (pass != c->pass) {
adamc@682	283 pthread_mutex_unlock(&c->lock);
adam@1552	284 chastise(send, sock);
adamc@864	285 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	286 return;
adamc@667	287 }
adamc@667	288
adamc@682	289 if (c->sock != -1) {
adamc@863	290 c->close(c->sock);
adamc@682	291 c->sock = -1;
adamc@682	292 }
adamc@667	293
adamc@682	294 c->last_contact = time(NULL);
adamc@682	295
adam@1369	296 if (uw_buffer_used(&c->msgs) > 0) {
adamc@863	297 send(sock, on_success, strlen(on_success));
adamc@863	298 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1369	299 send(sock, c->msgs.start, uw_buffer_used(&c->msgs));
adam@1369	300 uw_buffer_reset(&c->msgs);
adamc@667	301 close(sock);
adamc@667	302 }
adamc@863	303 else {
adamc@682	304 c->sock = sock;
adamc@863	305 c->send = send;
adamc@863	306 c->close = close;
adamc@863	307 }
adamc@667	308
adamc@682	309 pthread_mutex_unlock(&c->lock);
adamc@667	310 }
adamc@667	311
adamc@682	312 static void free_client(client *c) {
adamc@682	313 c->mode = UNUSED;
adamc@682	314 c->pass = -1;
adamc@667	315
adamc@682	316 c->next = clients_free;
adamc@682	317 clients_free = c;
adamc@667	318 }
adamc@667	319
adamc@682	320 static uw_Basis_channel new_channel(client *c) {
adamc@682	321 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	322 return ch;
adamc@668	323 }
adamc@668	324
adam@1447	325 static void client_send(client c, uw_buffer msg, const char *script, int script_len) {
adamc@685	326 pthread_mutex_lock(&c->lock);
adamc@671	327
adamc@682	328 if (c->sock != -1) {
adamc@863	329 c->send(c->sock, on_success, strlen(on_success));
adamc@863	330 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1447	331 if (script_len > 0) {
adam@1447	332 c->send(c->sock, "E\n", 2);
adam@1447	333 c->send(c->sock, script, script_len);
adam@1447	334 c->send(c->sock, "\n", 1);
adam@1447	335 }
adam@1369	336 c->send(c->sock, msg->start, uw_buffer_used(msg));
adamc@863	337 c->close(c->sock);
adamc@682	338 c->sock = -1;
adam@1665	339 } else if (uw_buffer_append(&c->msgs, msg->start, uw_buffer_used(msg)))
adamc@1113	340 fprintf(stderr, "Client message buffer size exceeded");
adamc@671	341
adamc@685	342 pthread_mutex_unlock(&c->lock);
adamc@668	343 }
adamc@668	344
adamc@668	345
adamc@668	346 // Global entry points
adamc@668	347
adamc@1164	348 extern void uw_global_custom();
adamc@1104	349 extern void uw_init_crypto();
adamc@1104	350
adamc@668	351 void uw_global_init() {
adamc@668	352 srand(time(NULL) ^ getpid());
adamc@668	353
adamc@668	354 clients = malloc(0);
adamc@1104	355
adamc@1164	356 uw_global_custom();
adamc@1104	357 uw_init_crypto();
adamc@1094	358 }
adamc@1094	359
adamc@1094	360 void uw_app_init(uw_app *app) {
adamc@1094	361 app->client_init();
adamc@668	362 }
adamc@668	363
adam@1332	364 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114	365
adamc@668	366
adamc@667	367 // Single-request state
adamc@667	368
adamc@323	369 typedef struct regions {
adamc@323	370 struct regions *next;
adamc@323	371 } regions;
adamc@323	372
adamc@425	373 typedef struct {
adamc@425	374 void (func)(void);
adamc@425	375 void *arg;
adamc@425	376 } cleanup;
adamc@425	377
adamc@671	378 typedef struct {
adamc@682	379 unsigned client;
adam@1369	380 uw_buffer msgs;
adamc@682	381 } delta;
adamc@671	382
adamc@737	383 typedef enum {
adamc@759	384 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	385 } input_kind;
adamc@737	386
adamc@756	387 typedef struct input {
adamc@737	388 input_kind kind;
adamc@737	389 union {
adamc@737	390 char *normal;
adamc@739	391 uw_Basis_file file;
adamc@756	392 struct {
adamc@759	393 struct input fields, parent;
adamc@756	394 } subform;
adamc@759	395 struct {
adamc@759	396 struct input entries, parent;
adamc@759	397 } subforms;
adamc@759	398 struct {
adamc@759	399 struct input fields, next, *parent;
adamc@759	400 } entry;
adamc@737	401 } data;
adamc@737	402 } input;
adamc@737	403
adamc@771	404 typedef struct {
adamc@771	405 void *data;
adam@1327	406 uw_callback commit, rollback;
adam@1327	407 uw_callback_with_retry free;
adamc@771	408 } transactional;
adamc@771	409
adamc@1061	410 typedef struct {
adamc@1061	411 char *name;
adamc@1061	412 void *data;
adamc@1061	413 void (free)(void);
adamc@1061	414 } global;
adamc@1061	415
adamc@311	416 struct uw_context {
adamc@1094	417 uw_app *app;
adam@1446	418 int id;
adamc@1094	419
adamc@854	420 char (get_header)(void , const char );
adamc@854	421 void *get_header_data;
adamc@457	422
adam@1799	423 char (get_env)(void , const char );
adam@1799	424 void *get_env_data;
adam@1799	425
adam@1369	426 uw_buffer outHeaders, page, heap, script;
adam@1451	427 int allowed_to_return_indirectly, returning_indirectly;
adamc@759	428 input inputs, subinputs, *cur_container;
adamc@1094	429 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	430
adam@1446	431 unsigned long long source_count;
adamc@562	432
adamc@272	433 void *db;
adam@1931	434 int transaction_started;
adamc@272	435
adamc@167	436 jmp_buf jmp_buf;
adamc@167	437
adamc@323	438 regions *regions;
adamc@323	439
adamc@425	440 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	441
adamc@1094	442 const char *script_header;
adamc@643	443
adam@1936	444 int needs_push, needs_sig, could_write_db;
adamc@693	445
adamc@682	446 size_t n_deltas, used_deltas;
adamc@682	447 delta *deltas;
adamc@671	448
adamc@682	449 client *client;
adamc@682	450
adamc@771	451 transactional *transactionals;
adamc@771	452 size_t n_transactionals, used_transactionals;
adamc@771	453
adamc@1061	454 global *globals;
adamc@1061	455 size_t n_globals;
adamc@1061	456
adamc@1066	457 char *current_url;
adamc@1066	458
adamc@1114	459 int deadline;
adamc@1114	460
adamc@1121	461 void *client_data;
adamc@1121	462
grrwlf@1997	463 uw_loggers *loggers;
adam@1334	464
adam@1386	465 int isPost, hasPostBody;
adam@1347	466 uw_Basis_postBody postBody;
adam@1370	467 uw_Basis_string queryString;
adam@1347	468
adam@1556	469 unsigned nextId;
adam@1556	470
adam@1782	471 int amInitializing;
adam@1782	472
adamc@167	473 char error_message[ERROR_BUF_LEN];
adam@1877	474
adam@1877	475 int usedSig, needsResig;
adam@1949	476
adam@1949	477 char *output_buffer;
adam@1949	478 size_t output_buffer_size;
adamc@117	479 };
adamc@117	480
adamc@1113	481 size_t uw_headers_max = SIZE_MAX;
adamc@1113	482 size_t uw_page_max = SIZE_MAX;
adamc@1113	483 size_t uw_heap_max = SIZE_MAX;
adamc@1113	484 size_t uw_script_max = SIZE_MAX;
adamc@1113	485
grrwlf@1997	486 uw_context uw_init(int id, uw_loggers *lg) {
adamc@311	487 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	488
adamc@1094	489 ctx->app = NULL;
adam@1446	490 ctx->id = id;
adamc@1094	491
adamc@854	492 ctx->get_header = NULL;
adamc@854	493 ctx->get_header_data = NULL;
adamc@457	494
adam@1799	495 ctx->get_env = NULL;
adam@1799	496 ctx->get_env_data = NULL;
adam@1799	497
adam@1413	498 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413	499 ctx->outHeaders.start[0] = 0;
adam@1413	500 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413	501 ctx->page.start[0] = 0;
adam@1451	502 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	503 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369	504 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667	505 ctx->script.start[0] = 0;
adamc@136	506
adamc@1094	507 ctx->inputs = malloc(0);
adamc@759	508 ctx->cur_container = NULL;
adamc@756	509 ctx->subinputs = malloc(0);
adamc@1094	510 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	511
adamc@272	512 ctx->db = NULL;
adam@1931	513 ctx->transaction_started = 0;
adamc@272	514
adamc@323	515 ctx->regions = NULL;
adamc@323	516
adamc@425	517 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	518
adamc@643	519 ctx->script_header = "";
adamc@693	520 ctx->needs_push = 0;
adamc@736	521 ctx->needs_sig = 0;
adam@1936	522 ctx->could_write_db = 1;
adamc@1104	523
adamc@565	524 ctx->source_count = 0;
adamc@562	525
adamc@682	526 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	527 ctx->deltas = malloc(0);
adamc@671	528
adamc@700	529 ctx->client = NULL;
adamc@700	530
adamc@700	531 ctx->error_message[0] = 0;
adamc@700	532
adamc@771	533 ctx->transactionals = malloc(0);
adamc@771	534 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	535
adamc@1061	536 ctx->globals = malloc(0);
adamc@1061	537 ctx->n_globals = 0;
adamc@1061	538
adamc@1066	539 ctx->current_url = "";
adamc@1066	540
adamc@1114	541 ctx->deadline = INT_MAX;
adamc@1114	542
adamc@1121	543 ctx->client_data = uw_init_client_data();
adamc@1121	544
grrwlf@1997	545 ctx->loggers = lg;
adam@1334	546
adam@1386	547 ctx->isPost = ctx->hasPostBody = 0;
adam@1347	548
adam@1370	549 ctx->queryString = NULL;
adam@1370	550
adam@1556	551 ctx->nextId = 0;
adam@1556	552
adam@1782	553 ctx->amInitializing = 0;
adam@1782	554
adam@1877	555 ctx->usedSig = 0;
adam@1877	556 ctx->needsResig = 0;
adam@1877	557
adam@1949	558 ctx->output_buffer = malloc(1);
adam@1949	559 ctx->output_buffer_size = 1;
adam@1949	560
adamc@117	561 return ctx;
adamc@106	562 }
adamc@106	563
adamc@1113	564 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	565
adamc@1121	566 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	567 return ctx->app;
adamc@1121	568 }
adamc@1121	569
adamc@1113	570 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	571 ctx->app = app;
adamc@1094	572
adamc@1105	573 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	574 if (app->inputs_len > uw_inputs_max)
adamc@1113	575 return 1;
adamc@1113	576
adamc@1094	577 ctx->sz_inputs = app->inputs_len;
adamc@1094	578 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	579 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	580 }
adamc@1134	581
adamc@1134	582 return 0;
adamc@1094	583 }
adamc@1094	584
adamc@1121	585 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	586 uw_copy_client_data(ctx->client_data, data);
adamc@1121	587 }
adamc@1121	588
adamc@311	589 void uw_set_db(uw_context ctx, void *db) {
adamc@272	590 ctx->db = db;
adamc@272	591 }
adamc@272	592
adamc@311	593 void *uw_get_db(uw_context ctx) {
adamc@272	594 return ctx->db;
adamc@272	595 }
adamc@272	596
grrwlf@1997	597
grrwlf@1997	598 uw_loggers* uw_get_loggers(struct uw_context *ctx) {
grrwlf@1997	599 return ctx->loggers;
grrwlf@1997	600 }
grrwlf@1997	601
adamc@311	602 void uw_free(uw_context ctx) {
adamc@671	603 size_t i;
adamc@671	604
adam@1369	605 uw_buffer_free(&ctx->outHeaders);
adam@1369	606 uw_buffer_free(&ctx->script);
adam@1369	607 uw_buffer_free(&ctx->page);
adam@1369	608 uw_buffer_free(&ctx->heap);
adamc@144	609 free(ctx->inputs);
adamc@756	610 free(ctx->subinputs);
adamc@425	611 free(ctx->cleanup);
adamc@771	612 free(ctx->transactionals);
adamc@1121	613 uw_free_client_data(ctx->client_data);
adamc@671	614
adamc@682	615 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	616 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	617 free(ctx->deltas);
adamc@671	618
adamc@1061	619 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	620 if (ctx->globals[i].free)
adamc@1089	621 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	622 free(ctx->globals);
adamc@1061	623
adam@1949	624 free(ctx->output_buffer);
adam@1949	625
adamc@136	626 free(ctx);
adamc@136	627 }
adamc@136	628
adamc@562	629 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	630 uw_buffer_reset(&ctx->outHeaders);
adam@1369	631 uw_buffer_reset(&ctx->script);
adamc@667	632 ctx->script.start[0] = 0;
adam@1369	633 uw_buffer_reset(&ctx->page);
adam@1451	634 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	635 uw_buffer_reset(&ctx->heap);
adamc@323	636 ctx->regions = NULL;
adamc@425	637 ctx->cleanup_front = ctx->cleanup;
adamc@682	638 ctx->used_deltas = 0;
adamc@682	639 ctx->client = NULL;
adamc@759	640 ctx->cur_container = NULL;
adamc@771	641 ctx->used_transactionals = 0;
adamc@1117	642 ctx->script_header = "";
adam@1370	643 ctx->queryString = NULL;
adam@1556	644 ctx->nextId = 0;
adam@1782	645 ctx->amInitializing = 0;
adam@1877	646 ctx->usedSig = 0;
adam@1877	647 ctx->needsResig = 0;
adamc@167	648 }
adamc@167	649
adamc@562	650 void uw_reset_keep_request(uw_context ctx) {
adamc@562	651 uw_reset_keep_error_message(ctx);
adamc@562	652 ctx->error_message[0] = 0;
adamc@167	653 }
adamc@167	654
adamc@311	655 void uw_reset(uw_context ctx) {
adamc@311	656 uw_reset_keep_request(ctx);
adamc@1105	657 if (ctx->app)
adamc@1105	658 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	659 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461	660 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adam@1943	661 ctx->transaction_started = 0;
adamc@144	662 }
adamc@144	663
adamc@311	664 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	665 int r = setjmp(ctx->jmp_buf);
adamc@272	666
adamc@1105	667 if (r == 0 && ctx->app)
adamc@1094	668 ctx->app->db_init(ctx);
adamc@272	669
adamc@272	670 return r;
adamc@272	671 }
adamc@272	672
adamc@1118	673 void uw_close(uw_context ctx) {
adamc@1118	674 ctx->app->db_close(ctx);
adamc@1118	675 }
adamc@1118	676
adam@1446	677 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	678 return ctx->get_header(ctx->get_header_data, h);
adam@1446	679 }
adam@1446	680
adamc@854	681 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	682 ctx->get_header = get_header;
adamc@854	683 ctx->get_header_data = get_header_data;
adamc@742	684 }
adamc@742	685
adam@1799	686 void uw_set_env(uw_context ctx, char (get_env)(void , const char ), void *get_env_data) {
adam@1799	687 ctx->get_env = get_env;
adam@1799	688 ctx->get_env_data = get_env_data;
adam@1799	689 }
adam@1799	690
adamc@801	691 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	692 va_list ap;
adamc@801	693 va_start(ap, fmt);
adamc@801	694
adamc@801	695 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	696 }
adamc@801	697
adamc@1131	698 int uw_has_error(uw_context ctx) {
adamc@1131	699 return ctx->error_message[0] != 0;
adamc@1131	700 }
adamc@1131	701
adamc@311	702 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	703 cleanup *cl;
adamc@425	704
adamc@167	705 va_list ap;
adamc@167	706 va_start(ap, fmt);
adamc@167	707
adamc@167	708 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	709
adamc@425	710 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	711 cl->func(cl->arg);
adamc@425	712
adamc@425	713 ctx->cleanup_front = ctx->cleanup;
adamc@425	714
adamc@190	715 longjmp(ctx->jmp_buf, fk);
adamc@167	716 }
adamc@167	717
adamc@1113	718 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	719
adamc@425	720 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	721 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	722 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	723 if (len == 0)
adamc@425	724 newLen = 1;
adamc@425	725 else
adamc@428	726 newLen = len * 2;
adamc@1113	727
adamc@1134	728 if (newLen > uw_cleanup_max) {
adamc@1113	729 if (len+1 <= uw_cleanup_max)
adamc@1113	730 newLen = uw_cleanup_max;
adamc@1113	731 else
adamc@1113	732 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	733 }
adamc@1113	734
adamc@470	735 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	736 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	737 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	738 }
adamc@425	739
adamc@425	740 ctx->cleanup_front->func = func;
adamc@425	741 ctx->cleanup_front->arg = arg;
adamc@425	742 ++ctx->cleanup_front;
adamc@425	743 }
adamc@425	744
adam@1444	745 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	746
adamc@682	747 void uw_login(uw_context ctx) {
adam@1942	748 char id_s, pass_s;
adam@1942	749
adam@1942	750 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adam@1942	751 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adam@1942	752 unsigned id = atoi(id_s);
adam@1942	753 int pass = atoi(pass_s);
adam@1942	754 client *c = find_client(id);
adam@1942	755
adam@1942	756 if (c == NULL)
adam@1942	757 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	758 else {
adamc@685	759 use_client(c);
adamc@682	760 ctx->client = c;
adam@1942	761
adam@1942	762 if (c->mode != USED)
adam@1942	763 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adam@1942	764 if (c->pass != pass)
adam@1942	765 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@864	766 }
adam@1942	767 } else if (ctx->needs_push) {
adam@1942	768 client *c = new_client();
adam@1942	769
adam@1942	770 if (c == NULL)
adam@1942	771 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adam@1942	772
adam@1942	773 use_client(c);
adam@1942	774 uw_copy_client_data(c->data, ctx->client_data);
adam@1942	775 ctx->client = c;
adamc@682	776 }
adamc@682	777 }
adamc@682	778
adamc@671	779 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	780 int r = setjmp(ctx->jmp_buf);
adamc@671	781
adam@1931	782 if (r == 0)
adam@1931	783 ctx->app->handle(ctx, path);
adam@1931	784
adam@1931	785 return r;
adam@1931	786 }
adam@1931	787
adam@1931	788 void uw_ensure_transaction(uw_context ctx) {
adam@1931	789 if (!ctx->transaction_started) {
adam@1936	790 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adamc@671	791 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1931	792 ctx->transaction_started = 1;
adamc@671	793 }
adamc@671	794 }
adamc@671	795
adamc@772	796 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	797 if (ctx->client == NULL)
adamc@682	798 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	799
adamc@682	800 return ctx->client->id;
adamc@682	801 }
adamc@682	802
adamc@425	803 void uw_pop_cleanup(uw_context ctx) {
adamc@425	804 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	805 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	806
adamc@425	807 --ctx->cleanup_front;
adamc@425	808 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	809 }
adamc@425	810
adamc@311	811 char *uw_error_message(uw_context ctx) {
adamc@167	812 return ctx->error_message;
adamc@167	813 }
adamc@167	814
adamc@1115	815 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	816 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	817 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	818 }
adamc@1115	819
adamc@759	820 static input *INP(uw_context ctx) {
adamc@759	821 if (ctx->cur_container == NULL)
adamc@759	822 return ctx->inputs;
adamc@759	823 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	824 return ctx->cur_container->data.subform.fields;
adamc@759	825 else if (ctx->cur_container->kind == ENTRY)
adamc@759	826 return ctx->cur_container->data.entry.fields;
adamc@759	827 else
adamc@760	828 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	829 }
adamc@759	830
adamc@760	831 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	832 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	833 *ptr += new_start - old_start;
adamc@760	834 }
adamc@760	835
adamc@760	836 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	837 switch (x->kind) {
adamc@759	838 case SUBFORM:
adamc@760	839 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	840 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	841 break;
adamc@759	842 case SUBFORMS:
adamc@760	843 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	844 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	845 break;
adamc@759	846 case ENTRY:
adamc@760	847 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	848 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	849 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	850 break;
adamc@1134	851 default:
adamc@1134	852 break;
phurst@1981	853 }
adamc@759	854 }
adamc@759	855
adamc@1113	856 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	857
adamc@759	858 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	859 size_t i;
adamc@759	860 input *r;
adamc@759	861
adamc@759	862 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	863 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	864 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	865
adamc@759	866 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	867
adamc@760	868 if (ctx->subinputs != new_subinputs) {
adamc@760	869 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	870 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	871 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	872 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	873
adamc@760	874 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	875
adamc@760	876 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	877 ctx->subinputs = new_subinputs;
adamc@760	878 }
adamc@759	879 }
adamc@759	880
adamc@759	881 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	882
adamc@759	883 for (i = 0; i < len; ++i)
adam@1474	884 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	885
adamc@759	886 return r;
adamc@759	887 }
adamc@756	888
adamc@801	889 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	890 //printf("Input name %s\n", name);
adamc@1038	891
adamc@756	892 if (!strcasecmp(name, ".b")) {
adamc@1094	893 int n = ctx->app->input_num(value);
adamc@756	894 input *inps;
adamc@756	895
adamc@801	896 if (n < 0) {
adam@1444	897 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	898 return -1;
adamc@801	899 }
adamc@801	900
adamc@1094	901 if (n >= ctx->app->inputs_len) {
adam@1444	902 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	903 return -1;
adamc@801	904 }
adamc@756	905
adamc@1094	906 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	907
adamc@759	908 INP(ctx)[n].kind = SUBFORM;
adamc@759	909 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	910 INP(ctx)[n].data.subform.fields = inps;
adamc@759	911 ctx->cur_container = &INP(ctx)[n];
adamc@756	912 } else if (!strcasecmp(name, ".e")) {
adamc@756	913 input *tmp;
adamc@756	914
adamc@801	915 if (ctx->cur_container == NULL) {
adamc@801	916 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	917 return -1;
adamc@801	918 }
adamc@756	919
adamc@759	920 tmp = ctx->cur_container;
adamc@759	921 switch (tmp->kind) {
adamc@759	922 case SUBFORM:
adamc@759	923 ctx->cur_container = tmp->data.subform.parent;
adamc@759	924 tmp->data.subform.parent = NULL;
adamc@759	925 break;
adamc@759	926 case SUBFORMS:
adamc@759	927 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	928 tmp->data.subforms.parent = NULL;
adamc@759	929 break;
adamc@759	930 case ENTRY:
adamc@759	931 ctx->cur_container = tmp->data.entry.parent;
adamc@759	932 break;
adamc@759	933 default:
adamc@801	934 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	935 return -1;
adamc@759	936 }
adamc@759	937 } else if (!strcasecmp(name, ".s")) {
adamc@1094	938 int n = ctx->app->input_num(value);
adamc@759	939
adamc@801	940 if (n < 0) {
adam@1444	941 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	942 return -1;
adamc@801	943 }
adamc@801	944
adamc@1094	945 if (n >= ctx->app->inputs_len) {
adam@1444	946 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	947 return -1;
adamc@801	948 }
adamc@759	949
adamc@759	950 INP(ctx)[n].kind = SUBFORMS;
adamc@759	951 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	952 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	953 ctx->cur_container = &INP(ctx)[n];
adamc@759	954 } else if (!strcasecmp(name, ".i")) {
adamc@759	955 input *inps;
adamc@759	956
adamc@801	957 if (!ctx->cur_container) {
adamc@801	958 uw_set_error(ctx, "New entry without container");
adamc@801	959 return -1;
adamc@801	960 }
adamc@801	961
adamc@801	962 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	963 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	964 return -1;
adamc@801	965 }
adamc@759	966
adamc@1094	967 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	968
adamc@759	969 inps->kind = ENTRY;
adamc@759	970 inps->data.entry.parent = ctx->cur_container;
adamc@759	971 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	972 ctx->cur_container->data.subforms.entries = inps;
adamc@759	973
adamc@759	974 inps->data.entry.fields = inps+1;
adamc@759	975 ctx->cur_container = inps;
adamc@756	976 } else {
adamc@1094	977 int n = ctx->app->input_num(name);
adamc@756	978
adam@1384	979 if (n < 0)
adam@1384	980 return 0;
adamc@801	981
adamc@1094	982 if (n >= ctx->app->inputs_len) {
adam@1444	983 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	984 return -1;
adamc@801	985 }
adamc@756	986
adamc@756	987 INP(ctx)[n].kind = NORMAL;
adamc@756	988 INP(ctx)[n].data.normal = value;
adamc@756	989 }
adamc@801	990
adamc@801	991 return 0;
adamc@144	992 }
adamc@144	993
adamc@311	994 char *uw_get_input(uw_context ctx, int n) {
adamc@169	995 if (n < 0)
adamc@311	996 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	997 if (n >= ctx->app->inputs_len)
adamc@311	998 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	999
adamc@756	1000 switch (INP(ctx)[n].kind) {
adamc@737	1001 case UNSET:
adamc@737	1002 return NULL;
adamc@739	1003 case FIL:
adamc@739	1004 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1005 case SUBFORM:
adamc@756	1006 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1007 case SUBFORMS:
adamc@759	1008 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1009 case ENTRY:
adamc@759	1010 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1011 case NORMAL:
adamc@756	1012 return INP(ctx)[n].data.normal;
adamc@737	1013 default:
adamc@737	1014 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1015 }
adamc@138	1016 }
adamc@138	1017
adamc@311	1018 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	1019 if (n < 0)
adamc@311	1020 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1021 if (n >= ctx->app->inputs_len)
adamc@311	1022 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1023
adamc@756	1024 switch (INP(ctx)[n].kind) {
adamc@737	1025 case UNSET:
adamc@737	1026 return "";
adamc@739	1027 case FIL:
adamc@739	1028 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1029 case SUBFORM:
adamc@756	1030 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1031 case SUBFORMS:
adamc@759	1032 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1033 case ENTRY:
adamc@759	1034 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1035 case NORMAL:
adamc@756	1036 return INP(ctx)[n].data.normal;
adamc@737	1037 default:
adamc@737	1038 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1039 }
adamc@737	1040 }
adamc@737	1041
adamc@801	1042 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1043 int n = ctx->app->input_num(name);
adamc@737	1044
adamc@801	1045 if (n < 0) {
adam@1444	1046 uw_set_error(ctx, "Bad file input name %s", uw_Basis_htmlifyString(ctx, name));
adamc@801	1047 return -1;
adamc@801	1048 }
adamc@801	1049
adamc@1094	1050 if (n >= ctx->app->inputs_len) {
adam@1444	1051 uw_set_error(ctx, "For file input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	1052 return -1;
adamc@801	1053 }
adamc@737	1054
adamc@739	1055 ctx->inputs[n].kind = FIL;
adamc@739	1056 ctx->inputs[n].data.file = f;
adamc@801	1057
adamc@801	1058 return 0;
adamc@737	1059 }
adamc@737	1060
adamc@739	1061 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1062
adamc@739	1063 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1064 if (n < 0)
adamc@737	1065 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1066 if (n >= ctx->app->inputs_len)
adamc@737	1067 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1068
adamc@756	1069 switch (INP(ctx)[n].kind) {
adamc@737	1070 case UNSET:
adamc@737	1071 {
adamc@739	1072 char *data = uw_malloc(ctx, 0);
adamc@740	1073 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1074 return f;
adamc@737	1075 }
adamc@739	1076 case FIL:
adamc@756	1077 return INP(ctx)[n].data.file;
adamc@737	1078 case NORMAL:
adamc@737	1079 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1080 case SUBFORM:
adamc@756	1081 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1082 case SUBFORMS:
adamc@759	1083 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1084 case ENTRY:
adamc@759	1085 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1086 default:
adamc@737	1087 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1088 }
adamc@190	1089 }
adamc@190	1090
adamc@756	1091 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1092 if (n < 0)
adamc@756	1093 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1094 if (n >= ctx->app->inputs_len)
adamc@756	1095 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1096
adamc@756	1097 switch (INP(ctx)[n].kind) {
adamc@756	1098 case UNSET:
adamc@756	1099 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1100 case FIL:
adamc@756	1101 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1102 case NORMAL:
adamc@756	1103 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1104 case SUBFORMS:
adamc@759	1105 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1106 case ENTRY:
adamc@759	1107 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1108 case SUBFORM:
adamc@759	1109 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1110 ctx->cur_container = &INP(ctx)[n];
adamc@756	1111 return;
adamc@756	1112 default:
adamc@756	1113 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1114 }
adamc@756	1115 }
adamc@756	1116
adamc@756	1117 void uw_leave_subform(uw_context ctx) {
adamc@756	1118 input *tmp;
adamc@756	1119
adamc@759	1120 if (ctx->cur_container == NULL)
adamc@756	1121 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1122
adamc@759	1123 tmp = ctx->cur_container;
adamc@759	1124 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1125 tmp->data.subform.parent = NULL;
adamc@759	1126 }
adamc@759	1127
adamc@759	1128 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1129 input *inps;
adamc@759	1130
adamc@759	1131 if (n < 0)
adamc@759	1132 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1133 if (n >= ctx->app->inputs_len)
adamc@759	1134 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1135
adamc@759	1136 switch (INP(ctx)[n].kind) {
adamc@759	1137 case UNSET:
adamc@759	1138 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1139 case FIL:
adamc@759	1140 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1141 case NORMAL:
adamc@759	1142 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1143 case SUBFORM:
adamc@759	1144 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1145 case ENTRY:
adamc@759	1146 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1147 case SUBFORMS:
adamc@759	1148 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1149 if (inps) {
adamc@759	1150 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1151 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1152 return 1;
adamc@759	1153 } else
adamc@759	1154 return 0;
adamc@759	1155 default:
adamc@759	1156 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1157 }
adamc@759	1158 }
adamc@759	1159
adamc@759	1160 int uw_next_entry(uw_context ctx) {
adamc@759	1161 if (ctx->cur_container == NULL)
adamc@759	1162 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1163
adamc@759	1164 switch (ctx->cur_container->kind) {
adamc@759	1165 case UNSET:
adamc@759	1166 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1167 case FIL:
adamc@759	1168 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1169 case NORMAL:
adamc@759	1170 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1171 case SUBFORM:
adamc@759	1172 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1173 case SUBFORMS:
adamc@759	1174 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1175 case ENTRY:
adamc@759	1176 if (ctx->cur_container->data.entry.next) {
adamc@759	1177 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1178 return 1;
adamc@759	1179 } else {
adamc@759	1180 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1181 return 0;
adamc@759	1182 }
adamc@759	1183 default:
adamc@759	1184 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1185 }
adamc@756	1186 }
adamc@756	1187
adamc@643	1188 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1189 ctx->script_header = s;
adamc@643	1190 }
adamc@643	1191
adamc@1094	1192 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1193 return ctx->app->url_prefix;
adamc@667	1194 }
adamc@667	1195
adamc@693	1196 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1197 ctx->needs_push = n;
adamc@693	1198 }
adamc@693	1199
adamc@736	1200 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1201 ctx->needs_sig = n;
adamc@736	1202 }
adamc@736	1203
adam@1936	1204 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936	1205 ctx->could_write_db = n;
adam@1936	1206 }
adam@1936	1207
adamc@667	1208
adam@1369	1209 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1210 if (b->back - b->front < extra) {
adamc@666	1211 size_t desired = b->front - b->start + extra, next;
adamc@136	1212 char *new_heap;
adamc@136	1213
adamc@666	1214 next = b->back - b->start;
adamc@317	1215 if (next == 0)
adamc@317	1216 next = 1;
adamc@317	1217 for (; next < desired; next *= 2);
adamc@136	1218
adamc@1134	1219 if (next > b->max) {
adamc@1113	1220 if (desired <= b->max)
adamc@1113	1221 next = desired;
adamc@1113	1222 else
adamc@1113	1223 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1224 }
adamc@1113	1225
adamc@666	1226 new_heap = realloc(b->start, next);
adamc@666	1227 b->front = new_heap + (b->front - b->start);
adamc@666	1228 b->back = new_heap + next;
adamc@136	1229
adamc@667	1230 if (new_heap != b->start) {
adamc@666	1231 b->start = new_heap;
adam@1389	1232 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1233 }
adamc@136	1234
adamc@666	1235 b->start = new_heap;
adamc@136	1236 }
adamc@136	1237 }
adamc@136	1238
adamc@832	1239 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1240 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1241 }
adamc@666	1242
adamc@832	1243 char *uw_heap_front(uw_context ctx) {
adamc@832	1244 return ctx->heap.front;
adamc@832	1245 }
adamc@832	1246
adamc@832	1247 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1248 ctx->heap.front = fr;
adamc@832	1249 }
adamc@832	1250
adam@1782	1251 void uw_begin_initializing(uw_context ctx) {
adam@1782	1252 ctx->amInitializing = 1;
adam@1782	1253 }
adam@1782	1254
adam@1782	1255 void uw_end_initializing(uw_context ctx) {
adam@1782	1256 ctx->amInitializing = 0;
adam@1782	1257 }
adam@1782	1258
adamc@311	1259 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136	1260 void *result;
adamc@136	1261
adam@1782	1262 if (ctx->amInitializing) {
adam@1782	1263 result = malloc(len);
adam@1782	1264
adam@1782	1265 if (result)
adam@1782	1266 return result;
adam@1782	1267 else
adam@1782	1268 uw_error(ctx, FATAL, "uw_malloc: malloc() returns 0");
adam@1782	1269 } else {
adam@1782	1270 uw_check_heap(ctx, len);
adam@1782	1271
adam@1782	1272 result = ctx->heap.front;
adam@1782	1273 ctx->heap.front += len;
adam@1782	1274 return result;
adam@1782	1275 }
adamc@117	1276 }
adamc@117	1277
adamc@323	1278 void uw_begin_region(uw_context ctx) {
adamc@666	1279 regions r = (regions ) ctx->heap.front;
adamc@323	1280
adamc@323	1281 uw_check_heap(ctx, sizeof(regions));
adamc@323	1282
adamc@666	1283 ctx->heap.front += sizeof(regions);
adamc@323	1284
adamc@323	1285 r->next = ctx->regions;
adamc@323	1286 ctx->regions = r;
adamc@323	1287 }
adamc@323	1288
adamc@323	1289 void uw_end_region(uw_context ctx) {
adamc@323	1290 regions *r = ctx->regions;
adamc@323	1291
adamc@323	1292 if (r == NULL)
adamc@323	1293 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1294
adamc@666	1295 ctx->heap.front = (char *) r;
adamc@323	1296 ctx->regions = r->next;
adamc@323	1297 }
adamc@323	1298
adamc@324	1299 void uw_memstats(uw_context ctx) {
adam@1369	1300 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1301 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1302 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1303 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1304 }
adamc@324	1305
adam@1915	1306 int uw_pagelen(uw_context ctx) {
adam@1915	1307 return ctx->page.front - ctx->page.start;
adam@1915	1308 }
adam@1915	1309
adamc@311	1310 int uw_send(uw_context ctx, int sock) {
adam@1949	1311 size_t target_length = (ctx->outHeaders.front - ctx->outHeaders.start) + 2 + (ctx->page.front - ctx->page.start);
adam@1949	1312
adam@1949	1313 if (ctx->output_buffer_size < target_length) {
adam@1949	1314 do {
adam@1949	1315 ctx->output_buffer_size *= 2;
adam@1949	1316 } while (ctx->output_buffer_size < target_length);
adam@1949	1317 ctx->output_buffer = realloc(ctx->output_buffer, ctx->output_buffer_size);
adam@1949	1318 }
adam@1949	1319
adam@1949	1320 memcpy(ctx->output_buffer, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adam@1949	1321 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start), "\r\n", 2);
adam@1949	1322 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start) + 2, ctx->page.start, ctx->page.front - ctx->page.start);
adam@1949	1323
adam@1949	1324 return uw_really_send(sock, ctx->output_buffer, target_length);
adamc@462	1325 }
adamc@462	1326
adamc@856	1327 int uw_print(uw_context ctx, int fd) {
adamc@856	1328 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1329
adamc@856	1330 if (n < 0)
adamc@856	1331 return n;
adamc@856	1332
adamc@856	1333 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1334
adamc@856	1335 if (n < 0)
adamc@856	1336 return n;
adamc@856	1337
adamc@856	1338 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1339 }
adamc@856	1340
adamc@860	1341 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1342 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1343
adamc@860	1344 if (n < 0)
adamc@860	1345 return n;
adamc@860	1346
adamc@860	1347 n = output(data, "\r\n", 2);
adamc@860	1348
adamc@860	1349 if (n < 0)
adamc@860	1350 return n;
adamc@860	1351
adamc@860	1352 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1353 }
adamc@860	1354
adamc@462	1355 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1356 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1357 }
adamc@462	1358
adamc@462	1359 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1360 int len = strlen(s);
adamc@462	1361
adamc@462	1362 uw_check_headers(ctx, len + 1);
adamc@666	1363 strcpy(ctx->outHeaders.front, s);
adamc@666	1364 ctx->outHeaders.front += len;
adamc@562	1365 }
adamc@562	1366
adam@1934	1367 int uw_has_contentLength(uw_context ctx) {
adam@1934	1368 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934	1369 }
adam@1934	1370
adamc@1110	1371 void uw_clear_headers(uw_context ctx) {
adam@1369	1372 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1373 }
adamc@1110	1374
adam@1932	1375 void uw_Basis_clear_page(uw_context ctx) {
adam@1932	1376 uw_buffer_reset(&ctx->page);
adam@1932	1377 }
adam@1932	1378
adamc@562	1379 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1380 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1381 }
adamc@562	1382
adamc@562	1383 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1384 int len = strlen(s);
adamc@562	1385
adamc@562	1386 uw_check_script(ctx, len + 1);
adamc@666	1387 strcpy(ctx->script.front, s);
adamc@666	1388 ctx->script.front += len;
adamc@562	1389 }
adamc@562	1390
adam@1446	1391 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1392 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1393 uw_write_script(ctx, "sig=\"");
adam@1671	1394 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1395 uw_write_script(ctx, "\";");
adam@1671	1396 }
adam@1671	1397
adam@1446	1398 return ctx->script.start;
adam@1446	1399 }
adam@1446	1400
adamc@695	1401 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1402 if (s[0] == 0)
adamc@695	1403 return "";
adamc@695	1404 else {
adamc@695	1405 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1406 sprintf(r, " onload='%s'", s);
adamc@695	1407 return r;
adamc@695	1408 }
adamc@695	1409 }
adamc@695	1410
adamc@1042	1411 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1412 if (ctx->script_header[0] == 0)
adamc@1042	1413 return "";
adamc@1042	1414 else {
vshabanoff@1763	1415 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763	1416 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042	1417 return r;
adamc@1042	1418 }
adamc@1042	1419 }
adamc@1042	1420
adamc@694	1421 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1422 if (ctx->client == NULL) {
adamc@736	1423 if (ctx->needs_sig) {
adamc@1094	1424 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1425 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1426 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1427 return r;
adamc@736	1428 }
adamc@736	1429 else
adamc@736	1430 return "";
adamc@736	1431 } else {
adamc@1094	1432 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1433 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1434 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1435 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1436 (ctx->isPost ? "true" : "false"),
adamc@682	1437 ctx->client->id,
adamc@682	1438 ctx->client->pass,
adamc@1094	1439 ctx->app->url_prefix,
adamc@1094	1440 ctx->app->timeout,
adamc@736	1441 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1442 sig,
adamc@736	1443 ctx->needs_sig ? "\";" : "");
adamc@679	1444 return r;
adamc@668	1445 }
adamc@667	1446 }
adamc@667	1447
adamc@574	1448 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1449 char r, s2;
adamc@574	1450
adam@1446	1451 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1452
adamc@666	1453 r = s2 = ctx->heap.front;
adamc@574	1454 *s2++ = '"';
adamc@574	1455
adamc@574	1456 for (; *s; s++) {
adam@1286	1457 unsigned char c = *s;
adamc@574	1458
adamc@574	1459 switch (c) {
adamc@574	1460 case '"':
adamc@574	1461 strcpy(s2, "\\\"");
adamc@574	1462 s2 += 2;
adamc@574	1463 break;
adamc@1027	1464 case '\'':
adamc@1027	1465 strcpy(s2, "\\047");
adamc@1027	1466 s2 += 4;
adamc@1027	1467 break;
adamc@574	1468 case '\\':
adamc@574	1469 strcpy(s2, "\\\\");
adamc@574	1470 s2 += 2;
adamc@574	1471 break;
adam@1457	1472 case '<':
adam@1457	1473 strcpy(s2, "\\074");
adam@1457	1474 s2 += 4;
adam@1457	1475 break;
adamc@574	1476 default:
adam@1286	1477 if (isprint((int)c) \|\| c >= 128)
adamc@574	1478 *s2++ = c;
adamc@574	1479 else {
adam@1429	1480 sprintf(s2, "\\%03o", c);
adamc@574	1481 s2 += 4;
adamc@574	1482 }
adamc@574	1483 }
adamc@574	1484 }
adamc@574	1485
adamc@574	1486 strcpy(s2, "\"");
adamc@910	1487 ctx->heap.front = s2 + 2;
adamc@574	1488 return r;
adamc@574	1489 }
adamc@574	1490
adam@1286	1491 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1492 unsigned char c = c1;
adamc@1025	1493 char r, s2;
adamc@1025	1494
adam@1446	1495 uw_check_heap(ctx, 7);
adamc@1025	1496
adamc@1025	1497 r = s2 = ctx->heap.front;
adamc@1025	1498 *s2++ = '"';
adamc@1025	1499
adamc@1025	1500 switch (c) {
adamc@1025	1501 case '"':
adamc@1025	1502 strcpy(s2, "\\\"");
adamc@1025	1503 s2 += 2;
adamc@1025	1504 break;
adamc@1027	1505 case '\'':
adamc@1027	1506 strcpy(s2, "\\047");
adamc@1027	1507 s2 += 4;
adamc@1027	1508 break;
adamc@1025	1509 case '\\':
adamc@1025	1510 strcpy(s2, "\\\\");
adamc@1025	1511 s2 += 2;
adamc@1025	1512 break;
adam@1457	1513 case '<':
adam@1457	1514 strcpy(s2, "\\074");
adam@1457	1515 s2 += 4;
adam@1457	1516 break;
adamc@1025	1517 default:
adam@1286	1518 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1519 *s2++ = c;
adamc@1025	1520 else {
adam@1429	1521 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1522 s2 += 4;
adamc@1025	1523 }
adamc@1025	1524 }
adamc@1025	1525
adamc@1025	1526 strcpy(s2, "\"");
adamc@1025	1527 ctx->heap.front = s2 + 2;
adamc@1025	1528 return r;
adamc@1025	1529 }
adamc@1025	1530
adamc@574	1531 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1532 char r, s2;
adamc@574	1533
adam@1446	1534 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1535
adamc@666	1536 r = s2 = ctx->script.front;
adamc@574	1537 *s2++ = '"';
adamc@574	1538
adamc@574	1539 for (; *s; s++) {
adam@1286	1540 unsigned char c = *s;
adamc@574	1541
adamc@574	1542 switch (c) {
adamc@577	1543 case '\'':
adamc@1027	1544 strcpy(s2, "\\");
adamc@574	1545 s2 += 2;
adamc@574	1546 break;
adamc@574	1547 case '\\':
adamc@574	1548 strcpy(s2, "\\\\");
adamc@574	1549 s2 += 2;
adamc@574	1550 break;
adam@1457	1551 case '<':
adam@1457	1552 strcpy(s2, "\\074");
adam@1457	1553 s2 += 4;
adam@1457	1554 break;
adamc@574	1555 default:
adam@1286	1556 if (isprint((int)c) \|\| c >= 128)
adamc@574	1557 *s2++ = c;
adamc@574	1558 else {
adam@1429	1559 sprintf(s2, "\\%03o", c);
adamc@574	1560 s2 += 4;
adamc@574	1561 }
adamc@574	1562 }
adamc@574	1563 }
adamc@574	1564
adamc@574	1565 strcpy(s2, "\"");
adamc@666	1566 ctx->script.front = s2 + 1;
adamc@574	1567 return r;
adamc@574	1568 }
adamc@574	1569
adamc@682	1570 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1571 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1572 return "null";
adamc@682	1573 else {
adamc@682	1574 int len;
adamc@682	1575 char *r;
adamc@682	1576
adamc@682	1577 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1578 r = ctx->heap.front;
adamc@682	1579 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1580 ctx->heap.front += len+1;
adamc@682	1581 return r;
adamc@682	1582 }
adamc@682	1583 }
adamc@682	1584
adam@1446	1585 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1586 int len;
adamc@577	1587 size_t s_len = strlen(s);
adamc@562	1588
grrwlf@1998	1589 if(ctx->id < 0)
grrwlf@1998	1590 uw_error(ctx, FATAL, "Attempt to create client source using inappropriate context");
grrwlf@1998	1591
adam@1446	1592 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1593 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1594 ctx->script.front += len;
adamc@666	1595 strcpy(ctx->script.front, s);
adamc@666	1596 ctx->script.front += s_len;
adamc@970	1597 strcpy(ctx->script.front, "));");
adamc@972	1598 ctx->script.front += 3;
adamc@562	1599
adam@1446	1600 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1601 return r;
adam@1446	1602 }
adam@1446	1603
adam@1446	1604 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1605 int len;
adamc@577	1606 size_t s_len = strlen(s);
adamc@577	1607
adam@1446	1608 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1609 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1610 ctx->script.front += len;
adamc@666	1611 strcpy(ctx->script.front, s);
adamc@666	1612 ctx->script.front += s_len;
adamc@970	1613 strcpy(ctx->script.front, "));");
adamc@972	1614 ctx->script.front += 3;
adamc@577	1615
adamc@577	1616 return uw_unit_v;
adamc@577	1617 }
adamc@577	1618
adamc@311	1619 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1620 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1621 }
adamc@117	1622
adamc@311	1623 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1624 *(ctx->page.front)++ = c;
adam@1413	1625 *ctx->page.front = 0;
adamc@117	1626 }
adamc@117	1627
adamc@311	1628 void uw_writec(uw_context ctx, char c) {
adam@1413	1629 uw_check(ctx, 2);
adamc@311	1630 uw_writec_unsafe(ctx, c);
adamc@117	1631 }
adamc@117	1632
adamc@311	1633 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1634 int len = strlen(s);
adamc@666	1635 memcpy(ctx->page.front, s, len);
adamc@666	1636 ctx->page.front += len;
adamc@117	1637 }
adamc@117	1638
adamc@311	1639 void uw_write(uw_context ctx, const char* s) {
adamc@311	1640 uw_check(ctx, strlen(s) + 1);
adamc@311	1641 uw_write_unsafe(ctx, s);
adamc@666	1642 *ctx->page.front = 0;
adamc@102	1643 }
adamc@106	1644
adamc@311	1645 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1646 char *result;
adamc@136	1647 int len;
adamc@311	1648 uw_check_heap(ctx, INTS_MAX);
adamc@666	1649 result = ctx->heap.front;
adamc@276	1650 sprintf(result, "%lld%n", n, &len);
adamc@666	1651 ctx->heap.front += len+1;
adamc@136	1652 return result;
adamc@106	1653 }
adamc@106	1654
adamc@311	1655 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1656 char *result;
adamc@136	1657 int len;
adamc@311	1658 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1659 result = ctx->heap.front;
adam@1920	1660 sprintf(result, "%.16g%n", n, &len);
adamc@666	1661 ctx->heap.front += len+1;
adamc@136	1662 return result;
adamc@106	1663 }
adamc@106	1664
adamc@311	1665 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1666 int len = strlen(s);
adamc@136	1667 char result, p;
adamc@311	1668 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1669
adamc@666	1670 result = p = ctx->heap.front;
adamc@136	1671
adamc@136	1672 for (; *s; s++) {
adamc@1054	1673 unsigned char c = *s;
adamc@136	1674
adamc@136	1675 if (c == '"') {
adamc@136	1676 strcpy(p, """);
adamc@136	1677 p += 6;
adamc@136	1678 } else if (c == '&') {
adamc@136	1679 strcpy(p, "&");
adamc@136	1680 p += 5;
adamc@136	1681 }
adamc@1059	1682 else
adamc@136	1683 *p++ = c;
adamc@136	1684 }
adamc@136	1685
adamc@137	1686 *p++ = 0;
adamc@666	1687 ctx->heap.front = p;
adamc@136	1688 return result;
adamc@106	1689 }
adamc@106	1690
adamc@1011	1691 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1692 char result, p;
adamc@1011	1693 uw_check_heap(ctx, 7);
adamc@1011	1694
adamc@1011	1695 result = p = ctx->heap.front;
adamc@1011	1696
adamc@1011	1697 if (c == '"') {
adamc@1011	1698 strcpy(p, """);
adamc@1011	1699 p += 6;
adamc@1011	1700 } else if (c == '&') {
adamc@1011	1701 strcpy(p, "&");
adamc@1011	1702 p += 5;
adamc@1011	1703 }
adamc@1059	1704 else
adamc@1011	1705 *p++ = c;
adamc@1011	1706
adamc@1011	1707 *p++ = 0;
adamc@1011	1708 ctx->heap.front = p;
adamc@1011	1709 return result;
adamc@1011	1710 }
adamc@1011	1711
adamc@721	1712 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1713 return s;
adamc@721	1714 }
adamc@721	1715
adamc@311	1716 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1717 int len;
adamc@117	1718
adamc@666	1719 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1720 ctx->page.front += len;
adamc@106	1721 }
adamc@106	1722
adamc@428	1723 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1724 uw_check(ctx, INTS_MAX);
adamc@311	1725 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1726
adamc@428	1727 return uw_unit_v;
adamc@106	1728 }
adamc@106	1729
adamc@428	1730 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1731 int len;
adamc@117	1732
adamc@311	1733 uw_check(ctx, FLOATS_MAX);
adamc@666	1734 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1735 ctx->page.front += len;
adamc@428	1736
adamc@428	1737 return uw_unit_v;
adamc@117	1738 }
adamc@117	1739
adamc@428	1740 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1741 uw_check(ctx, strlen(s) * 6);
adamc@117	1742
adamc@106	1743 for (; *s; s++) {
adamc@1054	1744 unsigned char c = *s;
adamc@106	1745
adamc@106	1746 if (c == '"')
adamc@311	1747 uw_write_unsafe(ctx, """);
adamc@136	1748 else if (c == '&')
adamc@311	1749 uw_write_unsafe(ctx, "&");
adamc@1059	1750 else
adamc@311	1751 uw_writec_unsafe(ctx, c);
adamc@106	1752 }
adamc@428	1753
adamc@428	1754 return uw_unit_v;
adamc@106	1755 }
adamc@120	1756
adamc@1011	1757 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1758 uw_check(ctx, 6);
adamc@1011	1759
adamc@1011	1760 if (c == '"')
adamc@1011	1761 uw_write_unsafe(ctx, """);
adamc@1011	1762 else if (c == '&')
adamc@1011	1763 uw_write_unsafe(ctx, "&");
adamc@1059	1764 else
adamc@1011	1765 uw_writec_unsafe(ctx, c);
adamc@1011	1766
adamc@1011	1767 return uw_unit_v;
adamc@1011	1768 }
adamc@1011	1769
adamc@120	1770
adamc@311	1771 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1772 int len;
adamc@137	1773 char *r;
adamc@137	1774
adamc@311	1775 uw_check_heap(ctx, INTS_MAX);
adamc@666	1776 r = ctx->heap.front;
adamc@276	1777 sprintf(r, "%lld%n", n, &len);
adamc@666	1778 ctx->heap.front += len+1;
adamc@137	1779 return r;
adamc@120	1780 }
adamc@120	1781
adamc@682	1782 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1783 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1784 return "";
adamc@682	1785 else {
adamc@682	1786 int len;
adamc@682	1787 char *r;
adamc@679	1788
adamc@682	1789 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1790 r = ctx->heap.front;
adamc@682	1791 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1792 ctx->heap.front += len+1;
adamc@682	1793 return r;
adamc@682	1794 }
adamc@679	1795 }
adamc@679	1796
adamc@311	1797 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1798 int len;
adamc@137	1799 char *r;
adamc@137	1800
adamc@311	1801 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1802 r = ctx->heap.front;
adamc@137	1803 sprintf(r, "%g%n", n, &len);
adamc@666	1804 ctx->heap.front += len+1;
adamc@137	1805 return r;
adamc@120	1806 }
adamc@120	1807
adamc@311	1808 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1809 char r, p;
adamc@137	1810
adamc@925	1811 if (s[0] == '\0')
adamc@925	1812 return "_";
adamc@925	1813
adamc@925	1814 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1815
adamc@925	1816 r = p = ctx->heap.front;
adamc@925	1817 if (s[0] == '_')
adamc@925	1818 *p++ = '_';
adamc@925	1819
adamc@925	1820 for (; *s; s++) {
adamc@1087	1821 unsigned char c = *s;
adamc@137	1822
adamc@137	1823 if (c == ' ')
adamc@137	1824 *p++ = '+';
adamc@137	1825 else if (isalnum(c))
adamc@137	1826 *p++ = c;
adamc@137	1827 else {
adamc@1259	1828 sprintf(p, ".%02X", c);
adamc@137	1829 p += 3;
adamc@137	1830 }
adamc@137	1831 }
adamc@137	1832
adamc@137	1833 *p++ = 0;
adamc@666	1834 ctx->heap.front = p;
adamc@137	1835 return r;
adamc@120	1836 }
adamc@120	1837
adamc@311	1838 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1839 if (b == uw_Basis_False)
adamc@186	1840 return "0";
adamc@186	1841 else
adamc@186	1842 return "1";
adamc@186	1843 }
adamc@186	1844
adam@1620	1845 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1846 char *r;
adam@1620	1847 int len;
adam@1620	1848 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1849 r = ctx->heap.front;
adam@1620	1850 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1851 ctx->heap.front += len+1;
adam@1620	1852 return r;
adam@1620	1853 }
adam@1620	1854
adamc@311	1855 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1856 int len;
adamc@120	1857
adamc@666	1858 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1859 ctx->page.front += len;
adamc@120	1860 }
adamc@120	1861
adamc@428	1862 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1863 uw_check(ctx, INTS_MAX);
adamc@311	1864 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1865
adamc@428	1866 return uw_unit_v;
adamc@120	1867 }
adamc@120	1868
adamc@682	1869 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1870 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1871 int len;
phurst@1981	1872
adamc@682	1873 uw_check(ctx, INTS_MAX + 1);
adamc@682	1874 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1875 ctx->page.front += len;
adamc@682	1876 }
phurst@1981	1877
adamc@679	1878 return uw_unit_v;
adamc@679	1879 }
adamc@679	1880
adamc@428	1881 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1882 int len;
adamc@120	1883
adamc@311	1884 uw_check(ctx, FLOATS_MAX);
adamc@666	1885 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1886 ctx->page.front += len;
adamc@428	1887
adamc@428	1888 return uw_unit_v;
adamc@120	1889 }
adamc@120	1890
adamc@488	1891 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1892 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1893 }
adamc@488	1894
adam@1404	1895 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1896 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1897 }
adam@1404	1898
adamc@428	1899 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1900 if (s[0] == '\0') {
adamc@925	1901 uw_check(ctx, 1);
adamc@925	1902 uw_writec_unsafe(ctx, '_');
adamc@925	1903 return uw_unit_v;
adamc@925	1904 }
adamc@925	1905
adamc@925	1906 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1907
adamc@925	1908 if (s[0] == '_')
adamc@925	1909 uw_writec_unsafe(ctx, '_');
adamc@120	1910
adamc@120	1911 for (; *s; s++) {
adamc@1087	1912 unsigned char c = *s;
adamc@120	1913
adamc@120	1914 if (c == ' ')
adamc@311	1915 uw_writec_unsafe(ctx, '+');
adamc@120	1916 else if (isalnum(c))
adamc@311	1917 uw_writec_unsafe(ctx, c);
adamc@120	1918 else {
adamc@1259	1919 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1920 ctx->page.front += 3;
adamc@120	1921 }
adamc@120	1922 }
adamc@428	1923
adamc@428	1924 return uw_unit_v;
adamc@120	1925 }
adamc@120	1926
adamc@428	1927 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1928 if (b == uw_Basis_False)
adamc@311	1929 uw_writec(ctx, '0');
adamc@186	1930 else
adamc@311	1931 uw_writec(ctx, '1');
adamc@428	1932
adamc@428	1933 return uw_unit_v;
adamc@186	1934 }
adamc@186	1935
adam@1620	1936 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	1937 int len;
phurst@1981	1938
adam@1620	1939 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	1940 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1941 ctx->page.front += len;
phurst@1981	1942
adam@1620	1943 return uw_unit_v;
adam@1620	1944 }
adam@1620	1945
adamc@120	1946
adamc@311	1947 static char uw_unurlify_advance(char s) {
adamc@144	1948 char *new_s = strchr(s, '/');
adamc@120	1949
adamc@120	1950 if (new_s)
adamc@120	1951 *new_s++ = 0;
adamc@120	1952 else
adamc@144	1953 new_s = strchr(s, 0);
adamc@144	1954
adamc@144	1955 return new_s;
adamc@144	1956 }
adamc@144	1957
adamc@311	1958 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1959 char new_s = uw_unurlify_advance(s);
adamc@311	1960 uw_Basis_int r;
adamc@120	1961
adamc@276	1962 r = atoll(*s);
adamc@120	1963 *s = new_s;
adamc@120	1964 return r;
adamc@120	1965 }
adamc@120	1966
adamc@311	1967 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1968 char new_s = uw_unurlify_advance(s);
adamc@311	1969 uw_Basis_float r;
adamc@120	1970
adamc@120	1971 r = atof(*s);
adamc@120	1972 *s = new_s;
adamc@120	1973 return r;
adamc@120	1974 }
adamc@120	1975
adamc@488	1976 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	1977 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	1978 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	1979 return r;
adamc@488	1980 }
adamc@488	1981
adamc@1023	1982 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1983 char s1, s2 = s;
adamc@144	1984 int n;
adamc@136	1985
adamc@1023	1986 if (!fromClient) {
adamc@1023	1987 if (*s2 == '_')
adamc@1023	1988 ++s2;
adamc@1259	1989 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1990 s2 += 3;
adamc@1023	1991 }
adamc@925	1992
adamc@927	1993 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	1994 unsigned char c = *s2;
adamc@136	1995
adamc@136	1996 switch (c) {
adamc@136	1997 case '+':
adamc@136	1998 *s1 = ' ';
adamc@136	1999 break;
adamc@136	2000 case '%':
adamc@169	2001 if (s2[1] == 0)
adamc@311	2002 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	2003 if (s2[2] == 0)
adamc@311	2004 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	2005 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2006 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	2007 *s1 = n;
adamc@136	2008 s2 += 2;
adamc@136	2009 break;
adamc@1259	2010 case '.':
adamc@1259	2011 if (!fromClient) {
adamc@1259	2012 if (s2[1] == 0)
adamc@1259	2013 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	2014 if (s2[2] == 0)
adamc@1259	2015 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	2016 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2017 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	2018 *s1 = n;
adamc@1259	2019 s2 += 2;
adamc@1259	2020 break;
adamc@1259	2021 }
adamc@136	2022 default:
adamc@136	2023 *s1 = c;
adamc@136	2024 }
adamc@136	2025 }
adamc@136	2026 *s1++ = 0;
adamc@144	2027 return s1;
adamc@144	2028 }
adamc@144	2029
adamc@311	2030 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	2031 char new_s = uw_unurlify_advance(s);
adamc@311	2032 uw_Basis_bool r;
phurst@1981	2033
adamc@186	2034 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2035 r = uw_Basis_False;
adamc@186	2036 else
adamc@311	2037 r = uw_Basis_True;
adamc@186	2038
adamc@186	2039 *s = new_s;
adamc@186	2040 return r;
adamc@186	2041 }
adamc@186	2042
adamc@311	2043 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2044 char new_s = uw_unurlify_advance(s);
adamc@1134	2045 char *r;
adamc@1134	2046 int len;
adamc@144	2047
adamc@200	2048 len = strlen(*s);
adamc@311	2049 uw_check_heap(ctx, len + 1);
adamc@144	2050
adamc@666	2051 r = ctx->heap.front;
adamc@1023	2052 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2053 *s = new_s;
adamc@1023	2054 return r;
adamc@1023	2055 }
adamc@1023	2056
adamc@1109	2057 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2058 s = uw_unurlify_advance(s);
adamc@1109	2059 return uw_unit_v;
adamc@1109	2060 }
adamc@1109	2061
adamc@1023	2062 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2063 char new_s = uw_unurlify_advance(s);
adamc@1134	2064 char *r;
adamc@1134	2065 int len;
adamc@1023	2066
adamc@1023	2067 len = strlen(*s);
adamc@1023	2068 uw_check_heap(ctx, len + 1);
adamc@1023	2069
adamc@1023	2070 r = ctx->heap.front;
adamc@1023	2071 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2072 *s = new_s;
adamc@136	2073 return r;
adamc@120	2074 }
adamc@135	2075
adamc@135	2076
adamc@311	2077 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2078 int len;
adamc@286	2079 char *r;
adamc@286	2080
adamc@311	2081 uw_check_heap(ctx, INTS_MAX);
adamc@666	2082 r = ctx->heap.front;
adamc@286	2083 sprintf(r, "%lld%n", n, &len);
adamc@666	2084 ctx->heap.front += len+1;
adamc@286	2085 return r;
adamc@286	2086 }
adamc@286	2087
adamc@428	2088 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2089 int len;
adamc@286	2090
adamc@311	2091 uw_check(ctx, INTS_MAX);
adamc@666	2092 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2093 ctx->page.front += len;
phurst@1981	2094
adamc@428	2095 return uw_unit_v;
adamc@286	2096 }
adamc@286	2097
adam@1358	2098 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2099 unsigned int n = ch;
adam@1358	2100 int len;
adam@1358	2101 char *r;
adam@1358	2102
adam@1358	2103 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2104 r = ctx->heap.front;
adam@1358	2105 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2106 ctx->heap.front += len+1;
adam@1358	2107 return r;
adam@1358	2108 }
adam@1358	2109
adam@1358	2110 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2111 unsigned int n = ch;
adam@1358	2112 int len;
adam@1358	2113
adam@1358	2114 uw_check(ctx, INTS_MAX+3);
adam@1358	2115 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2116 ctx->page.front += len;
adam@1358	2117 return uw_unit_v;
adam@1358	2118 }
adam@1358	2119
adamc@311	2120 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2121 int len;
adamc@286	2122 char *r;
adamc@286	2123
adamc@311	2124 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2125 r = ctx->heap.front;
adamc@286	2126 sprintf(r, "%g%n", n, &len);
adamc@666	2127 ctx->heap.front += len+1;
adamc@286	2128 return r;
adamc@286	2129 }
adamc@286	2130
adamc@428	2131 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2132 int len;
adamc@286	2133
adamc@311	2134 uw_check(ctx, FLOATS_MAX);
adamc@666	2135 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2136 ctx->page.front += len;
adamc@428	2137
adamc@428	2138 return uw_unit_v;
adamc@286	2139 }
adamc@286	2140
adam@1365	2141 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2142 int len;
adam@1360	2143 char *r;
adam@1360	2144
adam@1360	2145 uw_check_heap(ctx, INTS_MAX);
adam@1360	2146 r = ctx->heap.front;
adamc@1377	2147 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2148 ctx->heap.front += len+1;
adam@1360	2149 return r;
adam@1360	2150 }
adam@1360	2151
adam@1365	2152 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2153 int len;
adam@1360	2154
adam@1360	2155 uw_check(ctx, INTS_MAX);
adam@1360	2156 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2157 ctx->page.front += len;
phurst@1981	2158
adam@1360	2159 return uw_unit_v;
adam@1360	2160 }
adam@1360	2161
adam@1444	2162 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2163 char r, s2;
adamc@137	2164
adamc@311	2165 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2166
adamc@666	2167 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2168 unsigned char c = *s;
adamc@137	2169
adamc@137	2170 switch (c) {
adamc@137	2171 case '<':
adamc@137	2172 strcpy(s2, "<");
adamc@137	2173 s2 += 4;
adamc@137	2174 break;
adamc@137	2175 case '&':
adamc@137	2176 strcpy(s2, "&");
adamc@137	2177 s2 += 5;
adamc@137	2178 break;
adamc@137	2179 default:
adamc@1059	2180 *s2++ = c;
adamc@137	2181 }
adamc@137	2182 }
adamc@137	2183
adamc@137	2184 *s2++ = 0;
adamc@666	2185 ctx->heap.front = s2;
adamc@137	2186 return r;
adamc@135	2187 }
adamc@135	2188
adamc@428	2189 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2190 uw_check(ctx, strlen(s) * 6);
adamc@135	2191
adamc@135	2192 for (; *s; s++) {
adamc@1054	2193 unsigned char c = *s;
adamc@135	2194
adamc@135	2195 switch (c) {
adamc@135	2196 case '<':
adamc@311	2197 uw_write_unsafe(ctx, "<");
adamc@135	2198 break;
adamc@135	2199 case '&':
adamc@311	2200 uw_write_unsafe(ctx, "&");
adamc@135	2201 break;
adamc@135	2202 default:
adamc@1059	2203 uw_writec_unsafe(ctx, c);
adamc@135	2204 }
adamc@135	2205 }
adamc@428	2206
adamc@428	2207 return uw_unit_v;
adamc@135	2208 }
adamc@180	2209
adamc@311	2210 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2211 if (b == uw_Basis_False)
adamc@286	2212 return "False";
adamc@286	2213 else
adamc@286	2214 return "True";
adamc@286	2215 }
adamc@286	2216
adamc@428	2217 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2218 if (b == uw_Basis_False) {
adamc@311	2219 uw_check(ctx, 6);
adamc@666	2220 strcpy(ctx->page.front, "False");
adamc@666	2221 ctx->page.front += 5;
adamc@286	2222 } else {
adamc@311	2223 uw_check(ctx, 5);
adamc@666	2224 strcpy(ctx->page.front, "True");
adamc@666	2225 ctx->page.front += 4;
adamc@286	2226 }
adamc@428	2227
adamc@428	2228 return uw_unit_v;
adamc@286	2229 }
adamc@286	2230
adamc@436	2231 #define TIME_FMT "%x %X"
adamc@438	2232 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2233 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2234
adam@1629	2235 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2236
adamc@436	2237 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2238 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2239 }
adamc@436	2240
adamc@436	2241 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2242 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2243 }
adamc@436	2244
adam@1446	2245 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2246 int len;
adam@1446	2247 char *r;
adam@1446	2248
adam@1446	2249 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2250 r = ctx->heap.front;
adam@1446	2251 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2252 ctx->heap.front += len+1;
adam@1446	2253 return r;
adam@1446	2254 }
adam@1446	2255
adam@1446	2256 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2257 int len;
adam@1446	2258
adam@1446	2259 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2260 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2261 ctx->page.front += len;
phurst@1981	2262
adam@1446	2263 return uw_unit_v;
adam@1446	2264 }
adam@1446	2265
adamc@821	2266 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2267 while (n >= 0) {
adam@1388	2268 if (*s == 0)
adam@1388	2269 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2270
adam@1388	2271 if (n == 0)
adam@1388	2272 return *s;
adam@1388	2273
adam@1388	2274 --n;
adam@1388	2275 ++s;
adam@1388	2276 }
adam@1388	2277
adam@1388	2278 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2279 }
adamc@821	2280
adamc@821	2281 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2282 while (n >= 0) {
adam@1388	2283 if (*s == 0 \|\| n == 0)
adam@1388	2284 return s;
adam@1388	2285
adam@1388	2286 --n;
adam@1388	2287 ++s;
adam@1388	2288 }
adam@1388	2289
adam@1388	2290 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2291 }
adamc@821	2292
adamc@828	2293 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2294 return strlen(s);
adamc@828	2295 }
adamc@828	2296
adam@1388	2297 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2298 while (n > 0) {
adam@1388	2299 if (*s == 0)
adam@1388	2300 return uw_Basis_False;
adam@1388	2301
adam@1388	2302 --n;
adam@1388	2303 ++s;
adam@1388	2304 }
adam@1388	2305
adam@1388	2306 return uw_Basis_True;
adam@1388	2307 }
adam@1388	2308
adamc@829	2309 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2310 return strchr(s, ch);
adamc@829	2311 }
adamc@829	2312
adamc@831	2313 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2314 return strcspn(s, chs);
adamc@831	2315 }
adamc@831	2316
adamc@829	2317 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2318 uw_Basis_string r = strchr(s, ch);
adamc@829	2319 if (r == NULL)
adamc@829	2320 return NULL;
adamc@829	2321 else {
adamc@829	2322 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2323 *nr = r - s;
adamc@829	2324 return nr;
adamc@829	2325 }
adamc@829	2326 }
adamc@829	2327
adam@1390	2328 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2329 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2330 if (r == NULL)
adam@1390	2331 return NULL;
adam@1390	2332 else {
adam@1390	2333 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2334 *nr = r - haystack;
adam@1390	2335 return nr;
adam@1390	2336 }
adam@1390	2337 }
adam@1390	2338
adamc@311	2339 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2340 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2341 char *s;
adamc@180	2342
adamc@311	2343 uw_check_heap(ctx, len);
adamc@180	2344
adamc@666	2345 s = ctx->heap.front;
adamc@180	2346
adamc@180	2347 strcpy(s, s1);
adamc@180	2348 strcat(s, s2);
adamc@666	2349 ctx->heap.front += len;
adamc@180	2350
adamc@180	2351 return s;
adamc@180	2352 }
adamc@278	2353
adamc@829	2354 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2355 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2356
adamc@829	2357 if (start < 0)
adamc@829	2358 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2359 if (len < 0)
adamc@829	2360 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2361 if (start + len > full_len)
adamc@829	2362 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2363
adamc@829	2364 if (start + len == full_len)
adamc@829	2365 return &s[start];
adamc@829	2366 else {
adamc@829	2367 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2368 memcpy(r, s+start, len);
adamc@829	2369 r[len] = 0;
adamc@829	2370 return r;
adamc@829	2371 }
phurst@1981	2372
adamc@829	2373 }
adamc@829	2374
adamc@1023	2375 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2376 char *r;
adamc@1023	2377
adamc@1023	2378 uw_check_heap(ctx, 2);
adamc@1023	2379 r = ctx->heap.front;
adamc@1023	2380 r[0] = ch;
adamc@1023	2381 r[1] = 0;
adamc@1023	2382
adamc@1023	2383 ctx->heap.front += 2;
adamc@1023	2384
adamc@1023	2385 return r;
adamc@1023	2386 }
adamc@1023	2387
adamc@737	2388 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2389 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2390 char *s;
adamc@278	2391
adamc@311	2392 uw_check_heap(ctx, len);
adamc@278	2393
adamc@666	2394 s = ctx->heap.front;
adamc@278	2395
adamc@278	2396 strcpy(s, s1);
adamc@666	2397 ctx->heap.front += len;
adamc@278	2398
adamc@278	2399 return s;
adamc@278	2400 }
adamc@280	2401
adam@1295	2402 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2403 if (ctx->error_message[0]) {
adam@1295	2404 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2405 ctx->error_message[0] = 0;
adam@1295	2406 return s;
adam@1295	2407 } else
adam@1295	2408 return NULL;
adam@1295	2409 }
adam@1295	2410
adamc@737	2411 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2412 if (s1)
adamc@737	2413 return uw_strdup(ctx, s1);
adamc@493	2414 else
adamc@493	2415 return NULL;
adamc@493	2416 }
adamc@493	2417
adamc@742	2418 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2419 char *r = uw_malloc(ctx, len);
adamc@742	2420 memcpy(r, p, len);
adamc@742	2421 return r;
adamc@742	2422 }
adamc@280	2423
adamc@879	2424 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2425
adamc@311	2426 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2427 int len;
adamc@281	2428 char *r;
adamc@281	2429
adamc@311	2430 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2431 r = ctx->heap.front;
adamc@879	2432 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2433 ctx->heap.front += len+1;
adamc@281	2434 return r;
adamc@281	2435 }
adamc@281	2436
adamc@467	2437 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2438 if (n == NULL)
adamc@467	2439 return "NULL";
adamc@467	2440 else
adamc@467	2441 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2442 }
adamc@467	2443
adam@1920	2444 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879	2445
adamc@311	2446 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2447 int len;
adamc@281	2448 char *r;
adamc@281	2449
adamc@311	2450 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2451 r = ctx->heap.front;
adamc@879	2452 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2453 ctx->heap.front += len+1;
adamc@281	2454 return r;
adamc@281	2455 }
adamc@281	2456
adamc@467	2457 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2458 if (n == NULL)
adamc@467	2459 return "NULL";
adamc@467	2460 else
adamc@467	2461 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2462 }
adamc@467	2463
adam@1834	2464 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2465 char *uw_sqlsuffixString = "::text";
adamc@1011	2466 char *uw_sqlsuffixChar = "::char";
adamc@281	2467
adamc@311	2468 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2469 char r, s2;
adamc@280	2470
adamc@879	2471 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2472
adamc@666	2473 r = s2 = ctx->heap.front;
adamc@879	2474 if (uw_Estrings)
adamc@879	2475 *s2++ = 'E';
adamc@280	2476 *s2++ = '\'';
adamc@280	2477
adamc@280	2478 for (; *s; s++) {
adamc@280	2479 char c = *s;
adamc@280	2480
adamc@280	2481 switch (c) {
adamc@280	2482 case '\'':
adamc@885	2483 if (uw_Estrings)
adamc@885	2484 strcpy(s2, "\\'");
adamc@885	2485 else
adamc@885	2486 strcpy(s2, "''");
adamc@280	2487 s2 += 2;
adamc@280	2488 break;
adamc@280	2489 case '\\':
adamc@885	2490 if (uw_Estrings) {
adamc@885	2491 strcpy(s2, "\\\\");
adamc@885	2492 s2 += 2;
adamc@885	2493 } else
adamc@885	2494 *s2++ = '\\';
adamc@280	2495 break;
adamc@280	2496 default:
adamc@1150	2497 if (isprint((int)c))
adamc@280	2498 *s2++ = c;
adamc@879	2499 else if (uw_Estrings) {
adam@1857	2500 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2501 s2 += 4;
adamc@280	2502 }
adamc@879	2503 else
adam@1689	2504 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2505 }
adamc@280	2506 }
adamc@280	2507
adamc@879	2508 *s2++ = '\'';
adamc@879	2509 strcpy(s2, uw_sqlsuffixString);
adamc@879	2510 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2511 return r;
adamc@280	2512 }
adamc@281	2513
adamc@1011	2514 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2515 char r, s2;
adamc@1011	2516
adamc@1011	2517 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2518
adamc@1011	2519 r = s2 = ctx->heap.front;
adamc@1011	2520 if (uw_Estrings)
adamc@1011	2521 *s2++ = 'E';
adamc@1011	2522 *s2++ = '\'';
adamc@1011	2523
adamc@1011	2524 switch (c) {
adamc@1011	2525 case '\'':
adamc@1011	2526 if (uw_Estrings)
adamc@1011	2527 strcpy(s2, "\\'");
adamc@1011	2528 else
adamc@1011	2529 strcpy(s2, "''");
adamc@1011	2530 s2 += 2;
adamc@1011	2531 break;
adamc@1011	2532 case '\\':
adamc@1011	2533 if (uw_Estrings) {
adamc@1011	2534 strcpy(s2, "\\\\");
adamc@1011	2535 s2 += 2;
adamc@1011	2536 } else
adamc@1011	2537 *s2++ = '\\';
adamc@1011	2538 break;
adamc@1011	2539 default:
adamc@1150	2540 if (isprint((int)c))
adamc@1011	2541 *s2++ = c;
adamc@1011	2542 else if (uw_Estrings) {
adam@1857	2543 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2544 s2 += 4;
adamc@1011	2545 }
adamc@1011	2546 else
adamc@1011	2547 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2548 }
adamc@1011	2549
adamc@1011	2550 *s2++ = '\'';
adamc@1011	2551 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2552 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2553 return r;
adamc@1011	2554 }
adamc@1011	2555
adamc@879	2556 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2557
adam@1867	2558 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2559 char r, s2;
adamc@737	2560 size_t i;
adamc@737	2561
adam@1867	2562 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2563
adamc@737	2564 r = s2 = ctx->heap.front;
adamc@879	2565 if (uw_Estrings)
adamc@879	2566 *s2++ = 'E';
adam@1867	2567 else
adam@1867	2568 *s2++ = 'X';
adamc@737	2569 *s2++ = '\'';
adamc@737	2570
adamc@737	2571 for (i = 0; i < b.size; ++i) {
adam@1867	2572 unsigned char c = b.data[i];
adam@1867	2573
adam@1867	2574 if (uw_Estrings) {
adam@1867	2575 switch (c) {
adam@1867	2576 case '\'':
adamc@885	2577 strcpy(s2, "\\'");
adam@1867	2578 s2 += 2;
adam@1867	2579 break;
adam@1867	2580 case '\\':
adamc@885	2581 strcpy(s2, "\\\\\\\\");
adamc@885	2582 s2 += 4;
adam@1867	2583 break;
adam@1867	2584 default:
adam@1867	2585 if (isprint((int)c))
adam@1867	2586 *s2++ = c;
adam@1867	2587 else {
adam@1867	2588 sprintf(s2, "\\\\%03o", c);
adam@1867	2589 s2 += 5;
adam@1867	2590 }
adamc@737	2591 }
adam@1867	2592 } else {
adam@1867	2593 sprintf(s2, "%02X", c);
adam@1867	2594 s2 += 2;
adamc@737	2595 }
phurst@1981	2596 }
adamc@737	2597
adamc@879	2598 *s2++ = '\'';
adamc@879	2599 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2600 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2601 return r;
adamc@737	2602 }
adamc@737	2603
adamc@682	2604 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2605 int len;
adamc@682	2606 char *r;
adamc@682	2607 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2608
adamc@682	2609 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2610 r = ctx->heap.front;
adamc@879	2611 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2612 ctx->heap.front += len+1;
adamc@682	2613 return r;
adamc@682	2614 }
adamc@682	2615
adamc@682	2616 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2617 int len;
adamc@682	2618 char *r;
adamc@682	2619 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2620
adamc@682	2621 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2622 r = ctx->heap.front;
adamc@682	2623 sprintf(r, "%lld%n", combo, &len);
adamc@682	2624 ctx->heap.front += len+1;
adamc@682	2625 return r;
adamc@682	2626 }
adamc@682	2627
adamc@879	2628 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2629
adamc@682	2630 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2631 int len;
adamc@682	2632 char *r;
adamc@682	2633
adamc@682	2634 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2635 r = ctx->heap.front;
adamc@879	2636 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2637 ctx->heap.front += len+1;
adamc@682	2638 return r;
adamc@682	2639 }
adamc@682	2640
adamc@682	2641 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2642 int len;
adamc@682	2643 char *r;
adamc@682	2644
adamc@682	2645 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2646 r = ctx->heap.front;
adamc@682	2647 sprintf(r, "%u%n", cli, &len);
adamc@682	2648 ctx->heap.front += len+1;
adamc@682	2649 return r;
adamc@682	2650 }
adamc@682	2651
adamc@467	2652 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2653 if (s == NULL)
adamc@467	2654 return "NULL";
adamc@467	2655 else
adamc@467	2656 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2657 }
adamc@467	2658
adamc@311	2659 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2660 if (b == uw_Basis_False)
adamc@281	2661 return "FALSE";
adamc@281	2662 else
adamc@281	2663 return "TRUE";
adamc@281	2664 }
adamc@282	2665
adamc@467	2666 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2667 if (b == NULL)
adamc@467	2668 return "NULL";
adamc@467	2669 else
adamc@467	2670 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2671 }
adamc@467	2672
adamc@439	2673 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2674 size_t len;
adamc@682	2675 char r, s;
adam@1392	2676 struct tm stm = {};
adam@1392	2677 stm.tm_isdst = -1;
adamc@682	2678
adam@1365	2679 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2680 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2681 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2682 if (uw_sql_type_annotations) {
adam@1834	2683 if (t.microseconds) {
adam@1834	2684 r = uw_malloc(ctx, len + 21);
adam@1834	2685 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2686 } else {
adam@1834	2687 r = uw_malloc(ctx, len + 14);
adam@1834	2688 sprintf(r, "'%s'::timestamp", s);
adam@1834	2689 }
adam@1367	2690 } else {
adam@1834	2691 r = uw_malloc(ctx, len + 3);
adam@1834	2692 sprintf(r, "'%s'", s);
adam@1367	2693 }
adamc@682	2694 return r;
adamc@682	2695 } else
adamc@682	2696 return "<Invalid time>";
adamc@682	2697 }
adamc@682	2698
adamc@682	2699 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2700 size_t len;
adamc@439	2701 char *r;
adam@1392	2702 struct tm stm = {};
adam@1392	2703 stm.tm_isdst = -1;
adamc@439	2704
adam@1365	2705 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2706 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2707 r = ctx->heap.front;
adamc@439	2708 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2709 ctx->heap.front += len+1;
adamc@439	2710 return r;
adamc@439	2711 } else
adamc@439	2712 return "<Invalid time>";
adamc@439	2713 }
adamc@439	2714
adam@1364	2715 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2716 size_t len;
adam@1364	2717 char *r;
adam@1392	2718 struct tm stm = {};
adam@1392	2719 stm.tm_isdst = -1;
adam@1364	2720
adam@1365	2721 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2722 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2723 r = ctx->heap.front;
adam@1365	2724 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2725 ctx->heap.front += len;
adam@1365	2726 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2727 ctx->heap.front += 8;
adam@1364	2728 return r;
adam@1364	2729 } else
adam@1364	2730 return "<Invalid time>";
adam@1364	2731 }
adam@1364	2732
adamc@467	2733 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2734 if (t == NULL)
adamc@467	2735 return "NULL";
adamc@467	2736 else
adamc@467	2737 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2738 }
adamc@467	2739
adamc@311	2740 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2741 static uw_Basis_int true = 1;
adamc@311	2742 static uw_Basis_int false = 0;
adamc@282	2743
adamc@311	2744 if (b == uw_Basis_False)
adamc@282	2745 return (char *)&false;
adamc@282	2746 else
adamc@282	2747 return (char *)&true;
adamc@282	2748 }
adamc@284	2749
adamc@311	2750 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2751 int len;
adamc@284	2752 char *r;
adamc@284	2753
adamc@311	2754 uw_check_heap(ctx, INTS_MAX);
adamc@666	2755 r = ctx->heap.front;
adamc@284	2756 sprintf(r, "%lld%n", n, &len);
adamc@666	2757 ctx->heap.front += len+1;
adamc@284	2758 return r;
adamc@284	2759 }
adamc@285	2760
adamc@311	2761 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2762 int len;
adamc@285	2763 char *r;
adamc@285	2764
adamc@311	2765 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2766 r = ctx->heap.front;
adamc@285	2767 sprintf(r, "%g%n", n, &len);
adamc@666	2768 ctx->heap.front += len+1;
adamc@285	2769 return r;
adamc@285	2770 }
adamc@285	2771
adamc@821	2772 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2773 char *r = uw_malloc(ctx, 2);
adamc@821	2774 r[0] = ch;
adamc@821	2775 r[1] = 0;
adamc@821	2776 return r;
adamc@821	2777 }
adamc@821	2778
adamc@311	2779 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2780 if (b == uw_Basis_False)
adamc@285	2781 return "False";
adamc@285	2782 else
adamc@285	2783 return "True";
adamc@285	2784 }
adamc@288	2785
adam@1359	2786 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2787 size_t len;
adam@1352	2788 char *r;
adam@1392	2789 struct tm stm = {};
adam@1392	2790 stm.tm_isdst = -1;
adam@1352	2791
adam@1365	2792 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2793 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2794 r = ctx->heap.front;
adam@1352	2795 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2796 ctx->heap.front += len+1;
adam@1352	2797 return r;
adam@1352	2798 } else
adam@1352	2799 return "<Invalid time>";
adam@1352	2800 }
adam@1352	2801
adam@1629	2802 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2803 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2804 }
adam@1629	2805
adamc@311	2806 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2807 char *endptr;
adamc@311	2808 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2809
adamc@288	2810 if (s != '\0' && endptr == '\0') {
adamc@311	2811 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2812 *r = n;
adamc@288	2813 return r;
adamc@288	2814 } else
adamc@288	2815 return NULL;
adamc@288	2816 }
adamc@289	2817
adamc@311	2818 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2819 char *endptr;
adamc@311	2820 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2821
adamc@289	2822 if (s != '\0' && endptr == '\0') {
adamc@311	2823 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2824 *r = n;
adamc@289	2825 return r;
adamc@289	2826 } else
adamc@289	2827 return NULL;
adamc@289	2828 }
adamc@289	2829
adamc@821	2830 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2831 if (s[0] == 0) {
adamc@821	2832 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2833 r[0] = 0;
adamc@821	2834 return r;
adamc@821	2835 } else if (s[1] != 0)
adamc@821	2836 return NULL;
adamc@821	2837 else {
adamc@821	2838 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2839 r[0] = s[0];
adamc@821	2840 return r;
adamc@821	2841 }
adamc@821	2842 }
adamc@821	2843
adamc@311	2844 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2845 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2846 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2847
adamc@289	2848 if (!strcasecmp (s, "True"))
adamc@289	2849 return &true;
adamc@289	2850 else if (!strcasecmp (s, "False"))
adamc@289	2851 return &false;
adamc@289	2852 else
adamc@289	2853 return NULL;
adamc@289	2854 }
adamc@292	2855
adamc@436	2856 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2857 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2858 struct tm stm = {};
adam@1392	2859 stm.tm_isdst = -1;
adamc@436	2860
adamc@439	2861 if (dot) {
adamc@439	2862 *dot = 0;
adamc@439	2863 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2864 *dot = '.';
adamc@439	2865 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2866 r->seconds = mktime(&stm);
adam@1365	2867 r->microseconds = 0;
adamc@439	2868 return r;
adamc@439	2869 }
adamc@439	2870 else {
adamc@439	2871 *dot = '.';
adamc@439	2872 return NULL;
adamc@439	2873 }
adamc@436	2874 }
adamc@439	2875 else {
adamc@439	2876 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2877 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2878 r->seconds = mktime(&stm);
adam@1365	2879 r->microseconds = 0;
adamc@439	2880 return r;
adamc@439	2881 }
adamc@439	2882 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2883 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2884 r->seconds = mktime(&stm);
adam@1365	2885 r->microseconds = 0;
adamc@439	2886 return r;
adam@1632	2887 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2888 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2889 r->seconds = mktime(&stm);
adam@1632	2890 r->microseconds = 0;
adam@1632	2891 return r;
adamc@439	2892 }
adamc@439	2893 else
adamc@439	2894 return NULL;
adamc@439	2895 }
adamc@436	2896 }
adamc@436	2897
adam@1352	2898 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2899 char *end = strchr(s, 0);
adam@1374	2900 struct tm stm = {};
adam@1392	2901 stm.tm_isdst = -1;
adam@1352	2902
adam@1352	2903 if (strptime(s, fmt, &stm) == end) {
adam@1352	2904 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2905 r->seconds = mktime(&stm);
adam@1365	2906 r->microseconds = 0;
adam@1352	2907 return r;
adam@1352	2908 }
adam@1352	2909 else
adam@1352	2910 return NULL;
adam@1352	2911 }
adam@1352	2912
adamc@311	2913 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2914 char *endptr;
adamc@311	2915 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2916
adamc@292	2917 if (s != '\0' && endptr == '\0')
adamc@292	2918 return n;
adamc@292	2919 else
adam@1444	2920 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2921 }
adamc@293	2922
adamc@682	2923 #include <errno.h>
adamc@682	2924
adamc@678	2925 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2926 unsigned long long n;
adamc@682	2927
adamc@682	2928 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2929 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	2930 else {
adamc@682	2931 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2932 return ch;
adamc@682	2933 }
adamc@682	2934 }
adamc@682	2935
adamc@682	2936 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2937 char *endptr;
adamc@682	2938 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2939
adamc@678	2940 if (s != '\0' && endptr == '\0')
adamc@678	2941 return n;
adamc@678	2942 else
adam@1444	2943 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	2944 }
adamc@678	2945
adamc@311	2946 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2947 char *endptr;
adamc@311	2948 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2949
adamc@293	2950 if (s != '\0' && endptr == '\0')
adamc@293	2951 return n;
adamc@293	2952 else
adam@1444	2953 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2954 }
adamc@293	2955
adamc@821	2956 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2957 if (s[0] == 0)
adamc@821	2958 return 0;
adamc@821	2959 else if (s[1] != 0)
adam@1444	2960 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	2961 else
adamc@821	2962 return s[0];
adamc@821	2963 }
adamc@821	2964
adamc@311	2965 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2966 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2967 return uw_Basis_True;
adamc@296	2968 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2969 return uw_Basis_False;
adamc@293	2970 else
adam@1444	2971 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2972 }
adamc@436	2973
adam@1352	2974 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	2975 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	2976 struct tm stm = {};
adam@1392	2977 stm.tm_isdst = -1;
adam@1352	2978
adam@1352	2979 if (dot) {
adam@1352	2980 *dot = 0;
adam@1352	2981 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	2982 *dot = '.';
adam@1410	2983 char usec[] = "000000";
adam@1410	2984 int len = strlen(dot+1);
adam@1410	2985 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	2986 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	2987 return r;
adam@1352	2988 }
adam@1352	2989 else {
adam@1352	2990 *dot = '.';
adam@1444	2991 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	2992 }
adam@1352	2993 }
adam@1352	2994 else {
adam@1352	2995 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	2996 uw_Basis_time r = { mktime(&stm) };
adam@1365	2997 return r;
adam@1352	2998 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	2999 uw_Basis_time r = { mktime(&stm) };
adam@1365	3000 return r;
adam@1352	3001 } else
adam@1444	3002 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3003 }
adam@1352	3004 }
adam@1352	3005
adamc@436	3006 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	3007 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	3008 struct tm stm = {};
adam@1392	3009 stm.tm_isdst = -1;
adamc@436	3010
adamc@438	3011 if (dot) {
adamc@438	3012 *dot = 0;
adamc@438	3013 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	3014 *dot = '.';
adam@1365	3015 {
adam@1365	3016 uw_Basis_time r = { mktime(&stm) };
adam@1365	3017 return r;
adam@1365	3018 }
adamc@438	3019 }
adamc@438	3020 else {
adamc@438	3021 *dot = '.';
adam@1444	3022 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3023 }
adamc@438	3024 }
adamc@438	3025 else {
adam@1365	3026 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3027 uw_Basis_time r = { mktime(&stm) };
adam@1365	3028 return r;
adam@1365	3029 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3030 uw_Basis_time r = { mktime(&stm) };
adam@1365	3031 return r;
adam@1632	3032 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3033 uw_Basis_time r = { mktime(&stm) };
adam@1632	3034 return r;
adam@1365	3035 } else
adam@1444	3036 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3037 }
adamc@436	3038 }
adamc@457	3039
adam@1352	3040 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3041 char *end = strchr(s, 0);
adamc@939	3042 struct tm stm = {};
adam@1392	3043 stm.tm_isdst = -1;
adamc@939	3044
adam@1365	3045 if (strptime(s, fmt, &stm) == end) {
adam@1365	3046 uw_Basis_time r = { mktime(&stm) };
adam@1365	3047 return r;
adam@1365	3048 } else
adam@1444	3049 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3050 }
adamc@939	3051
adamc@742	3052 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3053 char *r = ctx->heap.front;
adamc@742	3054 uw_Basis_blob b = {len, r};
adamc@742	3055
adamc@742	3056 uw_check_heap(ctx, len);
adamc@742	3057
adam@1992	3058 if (s[0] == '\\' && s[1] == 'x') {
adam@1992	3059 s += 2;
adam@1992	3060
adam@1992	3061 while (*s) {
adam@1992	3062 int n;
adam@1992	3063 sscanf(s, "%02x", &n);
adam@1992	3064 *r++ = n;
adam@1992	3065 s += 2;
adam@1992	3066 }
adam@1992	3067 } else {
adam@1992	3068 while (*s) {
adam@1992	3069 if (s[0] == '\\') {
adam@1992	3070 if (s[1] == '\\') {
adam@1992	3071 *r++ = '\\';
adam@1992	3072 s += 2;
adam@1992	3073 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adam@1992	3074 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adam@1992	3075 s += 4;
adam@1992	3076 }
adam@1992	3077 else {
adam@1992	3078 *r++ = '\\';
adam@1992	3079 ++s;
adam@1992	3080 }
adam@1992	3081 } else {
adam@1992	3082 *r++ = s[0];
adamc@742	3083 ++s;
adamc@742	3084 }
adamc@742	3085 }
adamc@742	3086 }
adamc@742	3087
adamc@742	3088 b.size = r - ctx->heap.front;
adamc@742	3089 ctx->heap.front = r;
adam@1992	3090
adamc@742	3091 return b;
adamc@742	3092 }
adamc@742	3093
adam@1402	3094 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3095
adamc@463	3096 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3097 int len = strlen(c);
adamc@854	3098 char *p = ctx->outHeaders.start;
adamc@474	3099
adamc@1134	3100 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3101 char *p2;
adamc@474	3102 p += 13;
adamc@474	3103 p2 = strchr(p, '=');
adamc@474	3104
adamc@474	3105 if (p2) {
adamc@474	3106 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3107
adamc@474	3108 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3109 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3110 return NULL;
adamc@1052	3111 else {
adamc@1052	3112 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3113 memcpy(ret, p2+1, sz);
adamc@1052	3114 ret[sz] = 0;
adamc@1052	3115 return ret;
adamc@1052	3116 }
adamc@474	3117 }
adamc@474	3118 }
adamc@474	3119 }
adamc@463	3120
adamc@1134	3121 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3122 char *p2;
adamc@1051	3123
adamc@854	3124 while (1) {
adamc@1051	3125 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3126 if ((p2 = strchr(p, ';'))) {
adamc@1051	3127 size_t n = p2 - (p + len);
adamc@1051	3128 char *r = uw_malloc(ctx, n);
adamc@1051	3129 memcpy(r, p + 1 + len, n-1);
adamc@1051	3130 r[n-1] = 0;
adamc@1051	3131 return r;
adamc@1051	3132 } else
adamc@1051	3133 return p + 1 + len;
adamc@1134	3134 } else if ((p = strchr(p, ';')))
adamc@854	3135 p += 2;
adamc@463	3136 else
adamc@463	3137 return NULL;
adamc@463	3138 }
adamc@463	3139 }
adamc@792	3140
adamc@792	3141 return NULL;
adamc@457	3142 }
adamc@462	3143
adam@1877	3144 static void set_cookie(uw_context ctx) {
adam@1877	3145 if (ctx->usedSig)
adam@1877	3146 ctx->needsResig = 1;
adam@1877	3147 }
adam@1877	3148
adamc@1050	3149 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	3150 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3151 uw_write_header(ctx, c);
adamc@462	3152 uw_write_header(ctx, "=");
adamc@462	3153 uw_write_header(ctx, v);
adamc@466	3154 uw_write_header(ctx, "; path=");
adamc@466	3155 uw_write_header(ctx, prefix);
adamc@1050	3156 if (expires) {
adamc@1050	3157 char formatted[30];
adam@1392	3158 struct tm tm = {};
adam@1392	3159 tm.tm_isdst = -1;
adamc@1050	3160
adam@1365	3161 gmtime_r(&expires->seconds, &tm);
adamc@1050	3162
adamc@1050	3163 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3164
adamc@1050	3165 uw_write_header(ctx, "; expires=");
adamc@1050	3166 uw_write_header(ctx, formatted);
adamc@1050	3167 }
adamc@1050	3168 if (secure)
adamc@1050	3169 uw_write_header(ctx, "; secure");
adamc@462	3170 uw_write_header(ctx, "\r\n");
adam@1877	3171 set_cookie(ctx);
adamc@462	3172
adamc@462	3173 return uw_unit_v;
adamc@462	3174 }
adamc@667	3175
adamc@1050	3176 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3177 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3178 uw_write_header(ctx, c);
adamc@1050	3179 uw_write_header(ctx, "=; path=");
adamc@1050	3180 uw_write_header(ctx, prefix);
adamc@1052	3181 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3182 set_cookie(ctx);
adamc@1050	3183
adamc@1050	3184 return uw_unit_v;
adamc@1050	3185 }
adamc@1050	3186
adamc@1113	3187 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3188
adamc@682	3189 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3190 unsigned i;
adamc@682	3191 delta *d;
adamc@671	3192
adamc@682	3193 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3194 if (ctx->deltas[i].client == client)
adamc@682	3195 return &ctx->deltas[i];
adamc@671	3196
adamc@682	3197 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3198 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3199 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3200
adamc@682	3201 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3202 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3203 }
adamc@671	3204
adamc@682	3205 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3206 d->client = client;
adam@1369	3207 uw_buffer_reset(&d->msgs);
adamc@682	3208 return d;
adamc@671	3209 }
adamc@671	3210
adamc@668	3211 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3212 if (ctx->client == NULL)
adamc@682	3213 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3214
adamc@682	3215 return new_channel(ctx->client);
adamc@668	3216 }
adamc@668	3217
adamc@668	3218 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3219 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3220 size_t len;
adamc@682	3221 int preLen;
adamc@682	3222 char pre[INTS_MAX + 2];
adamc@668	3223
adamc@682	3224 len = strlen(msg);
adamc@682	3225
adamc@682	3226 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3227
adam@1369	3228 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3229 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3230 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3231
adamc@671	3232 return uw_unit_v;
adamc@668	3233 }
adamc@671	3234
adam@1327	3235 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3236 int i;
adamc@1131	3237 cleanup *cl;
adamc@1131	3238
adamc@1131	3239 if (ctx->client)
adamc@1131	3240 release_client(ctx->client);
adamc@1131	3241
adamc@1131	3242 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3243 cl->func(cl->arg);
adamc@1131	3244
adamc@1131	3245 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3246
adamc@1131	3247 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3248 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3249 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3250
adamc@1131	3251 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3252 if (ctx->transactionals[i].free)
adam@1327	3253 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3254
adam@1941	3255 if (ctx->app && ctx->transaction_started) {
adam@1941	3256 ctx->transaction_started = 0;
adam@1941	3257 return ctx->app->db_rollback(ctx);
adam@1941	3258 } else
adam@1941	3259 return 0;
adamc@1131	3260 }
adamc@1131	3261
adam@1956	3262 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	3263 const char uw_begin_html5[] = "<!DOCTYPE html><html>";
adam@1728	3264
adam@1877	3265 extern int uw_hash_blocksize;
adam@1877	3266
adam@1877	3267 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3268
adam@1877	3269 static char find_sig(char haystack) {
adam@1877	3270 int i;
adam@1877	3271 char *s = strstr(haystack, sig_intro);
adam@1877	3272
adam@1877	3273 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3274 return NULL;
phurst@1981	3275
adam@1877	3276 s += sizeof sig_intro - 1;
adam@1877	3277
adam@1877	3278 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3279 if (!isxdigit((int)s[i]))
adam@1877	3280 return NULL;
adam@1877	3281
adam@1877	3282 if (s[i] != '"')
adam@1877	3283 return NULL;
adam@1877	3284
adam@1877	3285 return s;
adam@1877	3286 }
adam@1877	3287
adam@1938	3288 int uw_commit(uw_context ctx) {
adamc@1104	3289 int i;
adam@1877	3290 char *sig;
adamc@1104	3291
adamc@1131	3292 if (uw_has_error(ctx)) {
adam@1327	3293 uw_rollback(ctx, 0);
adam@1938	3294 return 0;
adamc@1131	3295 }
adamc@1131	3296
adamc@1104	3297 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3298 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3299 if (ctx->transactionals[i].commit) {
adamc@1083	3300 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3301 if (uw_has_error(ctx)) {
adam@1327	3302 uw_rollback(ctx, 0);
adam@1938	3303 return 0;
adamc@1131	3304 }
adamc@1131	3305 }
adamc@771	3306
adam@2000	3307 if (ctx->transaction_started) {
adam@2000	3308 int code = ctx->app->db_commit(ctx);
adam@2000	3309
adam@2000	3310 if (code) {
adam@2000	3311 if (ctx->client)
adam@2000	3312 release_client(ctx->client);
adam@2000	3313
adam@2000	3314 if (code == -1) {
adam@2000	3315 // This case is for a serialization failure, which is not really an "error."
adam@2000	3316 // The transaction will restart, so we should rollback any transactionals
adam@2000	3317 // that triggered above.
adam@2000	3318
adam@2000	3319 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3320 if (ctx->transactionals[i].rollback != NULL)
adam@2000	3321 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2000	3322
adam@2000	3323 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3324 if (ctx->transactionals[i].free)
adam@2000	3325 ctx->transactionals[i].free(ctx->transactionals[i].data, 1);
adam@2000	3326
adam@2000	3327 return 1;
adam@2000	3328 }
adam@2000	3329
adam@2000	3330 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3331 if (ctx->transactionals[i].free)
adam@2000	3332 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3333
adam@2000	3334 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@2000	3335 return 0;
adam@2000	3336 }
adam@2000	3337 }
adam@2000	3338
adamc@1104	3339 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3340 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3341 if (ctx->transactionals[i].commit) {
adamc@1083	3342 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3343 if (uw_has_error(ctx)) {
adam@2000	3344 if (ctx->client)
adam@2000	3345 release_client(ctx->client);
adam@2000	3346
adam@2000	3347 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3348 if (ctx->transactionals[i].rollback != NULL)
adam@2000	3349 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2000	3350
adam@2000	3351 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3352 if (ctx->transactionals[i].free)
adam@2000	3353 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3354
adam@1938	3355 return 0;
adamc@1131	3356 }
adamc@1131	3357 }
adamc@1131	3358
adamc@682	3359 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3360 delta *d = &ctx->deltas[i];
adamc@682	3361 client *c = find_client(d->client);
adamc@682	3362
adam@1551	3363 assert (c != NULL);
adam@1551	3364 assert(c->mode == USED);
adamc@682	3365
adam@1447	3366 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3367 }
adamc@682	3368
adamc@682	3369 if (ctx->client)
adamc@685	3370 release_client(ctx->client);
adamc@771	3371
adamc@1104	3372 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3373 if (ctx->transactionals[i].free)
adam@1327	3374 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3375
vshabanoff@1726	3376 uw_check(ctx, 1);
vshabanoff@1726	3377 *ctx->page.front = 0;
adam@1413	3378
adam@1956	3379 if (!ctx->returning_indirectly
adam@1956	3380 && (ctx->app->is_html5
adam@1956	3381 ? !strncmp(ctx->page.start, uw_begin_html5, sizeof uw_begin_html5 - 1)
adam@1956	3382 : !strncmp(ctx->page.start, uw_begin_xhtml, sizeof uw_begin_xhtml - 1))) {
adam@1728	3383 char *s;
adam@1728	3384
adam@1728	3385 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1956	3386 s = ctx->page.start + (ctx->app->is_html5 ? sizeof uw_begin_html5 - 1 : sizeof uw_begin_xhtml - 1);
adam@1728	3387 s = strchr(s, '<');
adam@1728	3388 if (s == NULL) {
adam@1728	3389 // Weird. Document has no tags!
adam@1728	3390
adam@1728	3391 uw_write(ctx, "<head></head><body></body>");
adam@1728	3392 uw_check(ctx, 1);
adam@1728	3393 *ctx->page.front = 0;
adam@1728	3394 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3395 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3396
adam@1729	3397 // Any freeform JavaScript to include?
adam@1729	3398 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3399 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3400 size_t lenP = lenH + 40 + len;
adam@1729	3401 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3402
adam@1729	3403 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3404 start += ctx->page.start - oldPage;
adam@1729	3405 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3406 ctx->page.front += lenP;
adam@1729	3407 memcpy(start, ctx->script_header, lenH);
adam@1729	3408 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3409 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3410 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3411 } else {
adam@1729	3412 size_t lenH = strlen(ctx->script_header);
adam@1729	3413 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3414
adam@1729	3415 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3416 start += ctx->page.start - oldPage;
adam@1729	3417 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3418 ctx->page.front += lenH;
adam@1729	3419 memcpy(start, ctx->script_header, lenH);
adam@1729	3420 }
adam@1728	3421 } else {
adam@1728	3422 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3423
adam@1729	3424 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3425 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3426 size_t lenP = lenH + 53 + len;
adam@1729	3427 char start = s, oldPage = ctx->page.start;
adam@1729	3428
adam@1729	3429 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3430 start += ctx->page.start - oldPage;
adam@1729	3431 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3432 ctx->page.front += lenP;
adam@1729	3433 memcpy(start, "<head>", 6);
adam@1729	3434 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3435 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3436 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3437 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3438 } else {
adam@1729	3439 size_t lenH = strlen(ctx->script_header);
adam@1729	3440 size_t lenP = lenH + 13;
adam@1729	3441 char start = s, oldPage = ctx->page.start;
adam@1729	3442
adam@1729	3443 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3444 start += ctx->page.start - oldPage;
adam@1729	3445 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3446 ctx->page.front += lenP;
adam@1729	3447 memcpy(start, "<head>", 6);
adam@1729	3448 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3449 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3450 }
adamc@916	3451 }
adamc@916	3452 }
adam@1877	3453
adam@1877	3454 if (ctx->needsResig) {
adam@1877	3455 sig = find_sig(ctx->page.start);
adam@1877	3456 if (sig) {
adam@1877	3457 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3458
adam@1877	3459 do {
adam@1877	3460 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3461 sig = find_sig(sig);
adam@1877	3462 } while (sig);
adam@1877	3463 }
adam@1877	3464 }
adam@1938	3465
adam@1938	3466 return 0;
adamc@671	3467 }
adamc@671	3468
adamc@683	3469
adamc@1113	3470 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3471
adamc@771	3472 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3473 uw_callback_with_retry free) {
adamc@771	3474 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3475 if (ctx->used_transactionals+1 > uw_transactionals_max)
adamc@1113	3476 uw_error(ctx, FATAL, "Exceeded limit on number of transactionals");
adamc@1084	3477 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3478 ++ctx->n_transactionals;
adamc@771	3479 }
adamc@771	3480
adamc@771	3481 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3482 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3483 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3484 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	3485 }
adamc@771	3486
adamc@683	3487
adamc@683	3488 // "Garbage collection"
adamc@683	3489
adamc@1121	3490 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3491 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3492
adamc@1121	3493 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3494 int r = setjmp(ctx->jmp_buf);
adamc@683	3495
adamc@1121	3496 if (r == 0)
adamc@1121	3497 uw_do_expunge(ctx, cli, data);
adamc@1121	3498 else
adamc@1121	3499 ctx->app->db_rollback(ctx);
adamc@1121	3500
adamc@1121	3501 uw_post_expunge(ctx, data);
adamc@683	3502
adamc@683	3503 return r;
adamc@683	3504 }
adamc@683	3505
adamc@683	3506 void uw_prune_clients(uw_context ctx) {
adamc@683	3507 client c, next, *prev = NULL;
adamc@683	3508 time_t cutoff;
adamc@683	3509
adamc@1094	3510 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3511
adamc@683	3512 pthread_mutex_lock(&clients_mutex);
adam@1707	3513 pruning_thread = pthread_self();
adam@1707	3514 pruning_thread_initialized = 1;
adamc@683	3515
adamc@683	3516 for (c = clients_used; c; c = next) {
adamc@683	3517 next = c->next;
adamc@683	3518 pthread_mutex_lock(&c->lock);
adamc@685	3519 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3520 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3521 if (prev)
adamc@683	3522 prev->next = next;
adamc@683	3523 else
adamc@683	3524 clients_used = next;
adamc@683	3525 while (fk == UNLIMITED_RETRY) {
adam@1941	3526 uw_reset(ctx);
adamc@1121	3527 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3528 if (fk == UNLIMITED_RETRY)
adamc@684	3529 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3530 }
adamc@684	3531 if (fk == SUCCESS)
adamc@684	3532 free_client(c);
adamc@1121	3533 else
adamc@856	3534 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3535 }
adamc@683	3536 else
adamc@683	3537 prev = c;
adamc@683	3538 pthread_mutex_unlock(&c->lock);
adamc@683	3539 }
adamc@683	3540
adamc@683	3541 pthread_mutex_unlock(&clients_mutex);
adamc@683	3542 }
adamc@687	3543
adamc@687	3544 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3545 int r = setjmp(ctx->jmp_buf);
adamc@687	3546
adamc@687	3547 if (r == 0) {
adam@1936	3548 uw_ensure_transaction(ctx);
adamc@1094	3549 ctx->app->initializer(ctx);
adamc@1094	3550 if (ctx->app->db_commit(ctx))
adamc@687	3551 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3552 }
adamc@687	3553
adamc@687	3554 return r;
adamc@687	3555 }
adamc@717	3556
adamc@1065	3557 static int url_bad(uw_Basis_string s) {
adamc@1065	3558 for (; *s; ++s)
adamc@1153	3559 if (!isgraph((int)*s))
adamc@1065	3560 return 1;
adamc@1065	3561
adamc@1065	3562 return 0;
adamc@1065	3563 }
adamc@1065	3564
adamc@717	3565 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3566 if (url_bad(s))
adamc@1065	3567 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3568 if (ctx->app->check_url(s))
adamc@770	3569 return s;
adamc@770	3570 else
adamc@770	3571 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3572 }
adamc@734	3573
adamc@770	3574 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3575 if (url_bad(s))
adamc@1065	3576 return NULL;
adamc@1094	3577 if (ctx->app->check_url(s))
adamc@770	3578 return s;
adamc@770	3579 else
adamc@770	3580 return NULL;
adamc@770	3581 }
adamc@770	3582
adam@1465	3583 static int mime_format(const char *s) {
adamc@770	3584 for (; *s; ++s)
adamc@1153	3585 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.')
adamc@770	3586 return 0;
adamc@770	3587
adamc@770	3588 return 1;
adamc@770	3589 }
adamc@770	3590
adamc@741	3591 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3592 if (!mime_format(s))
adamc@770	3593 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3594
adamc@1094	3595 if (ctx->app->check_mime(s))
adamc@770	3596 return s;
adamc@770	3597 else
adamc@770	3598 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3599 }
adamc@770	3600
adamc@770	3601 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3602 if (!mime_format(s))
adamc@770	3603 return NULL;
adamc@770	3604
adamc@1094	3605 if (ctx->app->check_mime(s))
adamc@770	3606 return s;
adamc@770	3607 else
adamc@770	3608 return NULL;
adamc@741	3609 }
adamc@741	3610
adam@1465	3611 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3612 if (!mime_format(s))
adam@1465	3613 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3614
adam@1465	3615 if (ctx->app->check_requestHeader(s))
adam@1465	3616 return s;
adam@1465	3617 else
adam@1465	3618 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3619 }
adam@1465	3620
adam@1465	3621 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3622 if (!mime_format(s))
adam@1465	3623 return NULL;
adam@1465	3624
adam@1465	3625 if (ctx->app->check_requestHeader(s))
adam@1465	3626 return s;
adam@1465	3627 else
adam@1465	3628 return NULL;
adam@1465	3629 }
adam@1465	3630
adam@1465	3631 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3632 if (!mime_format(s))
adam@1465	3633 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3634
adam@1465	3635 if (ctx->app->check_responseHeader(s))
adam@1465	3636 return s;
adam@1465	3637 else
adam@1465	3638 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3639 }
adam@1465	3640
adam@1799	3641 static int envVar_format(const char *s) {
adam@1799	3642 for (; *s; ++s)
adam@1799	3643 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3644 return 0;
adam@1799	3645
adam@1799	3646 return 1;
adam@1799	3647 }
adam@1799	3648
adam@1465	3649 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3650 if (!envVar_format(s))
adam@1465	3651 return NULL;
adam@1465	3652
adam@1465	3653 if (ctx->app->check_responseHeader(s))
adam@1465	3654 return s;
adam@1465	3655 else
adam@1465	3656 return NULL;
adam@1465	3657 }
adam@1465	3658
adam@1799	3659 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3660 if (!envVar_format(s))
adam@1799	3661 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3662
adam@1799	3663 if (ctx->app->check_envVar(s))
adam@1799	3664 return s;
adam@1799	3665 else
adam@1799	3666 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3667 }
adam@1799	3668
adam@1799	3669 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3670 if (!mime_format(s))
adam@1799	3671 return NULL;
adam@1799	3672
adam@1799	3673 if (ctx->app->check_envVar(s))
adam@1799	3674 return s;
adam@1799	3675 else
adam@1799	3676 return NULL;
adam@1799	3677 }
adam@1799	3678
adam@1465	3679 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3680 return uw_Basis_requestHeader(ctx, name);
adam@1465	3681 }
adam@1465	3682
adam@1465	3683 static int mime_value_format(const char *s) {
adam@1465	3684 for (; *s; ++s)
adam@1465	3685 if (s == '\r' \|\| s == '\n')
adam@1465	3686 return 0;
adam@1465	3687
adam@1465	3688 return 1;
adam@1465	3689 }
adam@1465	3690
adam@1465	3691 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3692 if (!mime_value_format(value))
adam@1465	3693 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3694
adam@1465	3695 uw_write_header(ctx, name);
adam@1465	3696 uw_write_header(ctx, ": ");
adam@1465	3697 uw_write_header(ctx, value);
adam@1465	3698 uw_write_header(ctx, "\r\n");
adam@1465	3699
adam@1465	3700 return uw_unit_v;
adam@1465	3701 }
adam@1465	3702
adam@1799	3703 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1993	3704 if (ctx->get_env)
adam@1993	3705 return ctx->get_env(ctx->get_env_data, name);
adam@1993	3706 else
adam@1994	3707 return getenv(name);
adam@1799	3708 }
adam@1799	3709
adamc@734	3710 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3711 return s ? s : "";
adamc@734	3712 }
adamc@734	3713
adamc@734	3714 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3715 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3716 int i;
phurst@1981	3717
adamc@734	3718 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3719 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3720
adamc@734	3721 return r;
adamc@734	3722 }
adamc@734	3723
adam@1512	3724 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3725 * optimizations that would enable timing attacks. See:
adam@1512	3726 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3727 */
adam@1512	3728 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3729 int i, x = 0, len1 = strlen(s1);
adam@1512	3730
adam@1512	3731 if (len1 != strlen(s2)) return 0;
adam@1512	3732
adam@1512	3733 for (i = 0; i < len1; ++i) {
adam@1512	3734 __asm__ __volatile__ ("");
adam@1512	3735 x \|= s1[i] ^ s2[i];
adam@1512	3736 }
adam@1512	3737
adam@1512	3738 return x == 0;
adam@1512	3739 }
adam@1512	3740
adamc@734	3741 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3742 ctx->usedSig = 1;
adamc@1094	3743 return ctx->app->cookie_sig(ctx);
adamc@734	3744 }
adamc@737	3745
adamc@737	3746 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3747 return f.name;
adamc@737	3748 }
adamc@737	3749
adamc@740	3750 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3751 return f.type;
adamc@740	3752 }
adamc@740	3753
adamc@745	3754 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3755 return b.size;
adamc@745	3756 }
adamc@745	3757
adamc@1119	3758 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3759 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3760
adamc@1119	3761 return b;
adamc@1119	3762 }
adamc@1119	3763
adamc@737	3764 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3765 return f.data;
adamc@737	3766 }
adamc@741	3767
adam@1347	3768 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3769 return pb.type;
adam@1347	3770 }
adam@1347	3771
adam@1347	3772 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3773 return pb.data;
adam@1347	3774 }
adam@1347	3775
adam@1471	3776 static char *old_headers(uw_context ctx) {
adam@1471	3777 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3778 return NULL;
adam@1471	3779 else {
adam@1471	3780 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3781
adam@1471	3782 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3783 return NULL;
adam@1471	3784 else {
adam@1471	3785 s = strchr(s+15, '\n');
adam@1471	3786 if (s == NULL)
adam@1471	3787 return NULL;
adam@1471	3788 else
adam@1471	3789 return uw_strdup(ctx, s+1);
adam@1471	3790 }
adam@1471	3791 }
adam@1471	3792 }
adam@1471	3793
adamc@741	3794 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3795 cleanup *cl;
adamc@741	3796 int len;
adam@1471	3797 char *oldh;
adamc@741	3798
adam@1451	3799 if (!ctx->allowed_to_return_indirectly)
adam@1451	3800 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3801
adamc@1065	3802 ctx->returning_indirectly = 1;
adam@1471	3803 oldh = old_headers(ctx);
adam@1369	3804 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3805 uw_buffer_reset(&ctx->page);
adamc@741	3806
adamc@856	3807 uw_write_header(ctx, on_success);
adamc@856	3808 uw_write_header(ctx, "Content-Type: ");
adamc@741	3809 uw_write_header(ctx, mimeType);
adam@1934	3810 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369	3811 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3812 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3813 ctx->outHeaders.front += len;
adamc@1066	3814 uw_write_header(ctx, "\r\n");
adam@1471	3815 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3816
adam@1369	3817 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3818
adamc@741	3819 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3820 cl->func(cl->arg);
adamc@741	3821
adamc@741	3822 ctx->cleanup_front = ctx->cleanup;
adamc@741	3823
adamc@1065	3824 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3825 }
adamc@1065	3826
adam@1932	3827 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932	3828 cleanup *cl;
adam@1932	3829 int len;
adam@1932	3830 char *oldh;
adam@1932	3831
adam@1932	3832 if (!ctx->allowed_to_return_indirectly)
adam@1932	3833 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932	3834
adam@1932	3835 ctx->returning_indirectly = 1;
adam@1932	3836 oldh = old_headers(ctx);
adam@1932	3837 uw_buffer_reset(&ctx->outHeaders);
adam@1932	3838
adam@1932	3839 uw_write_header(ctx, on_success);
adam@1932	3840 uw_write_header(ctx, "Content-Type: ");
adam@1932	3841 uw_write_header(ctx, mimeType);
adam@1934	3842 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932	3843 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932	3844 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932	3845 ctx->outHeaders.front += len;
adam@1932	3846 uw_write_header(ctx, "\r\n");
adam@1932	3847 if (oldh) uw_write_header(ctx, oldh);
adam@1932	3848
adam@1932	3849 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932	3850 cl->func(cl->arg);
adam@1932	3851
adam@1932	3852 ctx->cleanup_front = ctx->cleanup;
adam@1932	3853
adam@1932	3854 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932	3855 }
adam@1932	3856
adamc@1065	3857 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3858 cleanup *cl;
adamc@1066	3859 char *s;
adam@1471	3860 char *oldh;
adamc@1065	3861
adam@1451	3862 if (!ctx->allowed_to_return_indirectly)
adam@1451	3863 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3864
adamc@1065	3865 ctx->returning_indirectly = 1;
adam@1471	3866 oldh = old_headers(ctx);
adam@1369	3867 uw_buffer_reset(&ctx->page);
adam@1369	3868 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3869 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3870 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3871 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3872
adam@1409	3873 if (on_success[0])
adam@1409	3874 uw_write_header(ctx, on_redirect);
adam@1409	3875 else
adam@1409	3876 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3877 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3878 if (s) {
adamc@1066	3879 char *s2;
adam@1409	3880 if (s[0] == '\n') ++s;
adam@1409	3881 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3882 *s2 = 0;
adamc@1066	3883 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3884 uw_write_header(ctx, s);
adamc@1066	3885 uw_write_header(ctx, "\n");
adamc@1066	3886 }
adamc@1066	3887 }
adamc@1066	3888 }
adamc@1066	3889
adamc@1065	3890 uw_write_header(ctx, "Location: ");
adamc@1065	3891 uw_write_header(ctx, url);
adamc@1065	3892 uw_write_header(ctx, "\r\n\r\n");
adam@1471	3893 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	3894
adamc@1065	3895 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3896 cl->func(cl->arg);
adamc@1065	3897
adamc@1065	3898 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3899
adamc@1065	3900 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3901 }
adamc@874	3902
adamc@874	3903 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	3904 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	3905
adamc@874	3906 for (; *s; ++s) {
adamc@874	3907 if (s[0] == '\'') {
adamc@874	3908 *r++ = '\'';
adamc@874	3909 for (++s; *s; ++s) {
adamc@874	3910 if (s[0] == '\'') {
adamc@874	3911 *r++ = '\'';
adamc@874	3912 break;
adamc@874	3913 } else if (s[0] == '\\') {
adam@1467	3914 *r++ = '\\';
adam@1467	3915 *r++ = s[1];
adam@1467	3916 ++s;
adamc@874	3917 } else
adamc@874	3918 *r++ = s[0];
adamc@874	3919 }
adamc@874	3920 if (*s == 0) break;
adam@1467	3921 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	3922 s += 3;
adamc@874	3923 else
adamc@874	3924 *r++ = s[0];
adamc@874	3925 }
adamc@874	3926
adam@1467	3927 *r = 0;
adam@1467	3928 return ret;
adamc@874	3929 }
adamc@874	3930
adamc@922	3931 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3932 va_list ap;
adamc@922	3933 size_t len = 1;
adamc@922	3934 char s, r, *s2;
phurst@1981	3935
adamc@922	3936 va_start(ap, ctx);
adamc@922	3937 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3938 len += strlen(s);
adamc@922	3939 va_end(ap);
adamc@922	3940
adamc@922	3941 r = uw_malloc(ctx, len);
adamc@922	3942 va_start(ap, ctx);
adamc@922	3943 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3944 while (*s)
adamc@922	3945 s2++ = s++;
adamc@922	3946 va_end(ap);
adamc@922	3947 *s2 = 0;
adamc@922	3948
adamc@922	3949 return r;
adamc@922	3950 }
adamc@1006	3951
adam@1365	3952 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	3953
adamc@1006	3954 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	3955 uw_Basis_time r = { time(NULL) };
adam@1365	3956 return r;
adamc@1006	3957 }
adamc@1061	3958
adam@1369	3959 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	3960 tm.seconds += n;
adam@1365	3961 return tm;
adamc@1138	3962 }
adamc@1138	3963
adam@1514	3964 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	3965 return difftime(tm2.seconds, tm1.seconds);
adam@1514	3966 }
adam@1514	3967
adam@1685	3968 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	3969 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	3970 }
adam@1685	3971
adam@1685	3972 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	3973 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	3974 }
adam@1685	3975
adam@1514	3976 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	3977 return tm.seconds;
adam@1514	3978 }
adam@1514	3979
phurst@1971	3980 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	3981 struct tm tm = { .tm_year = year - 1900, .tm_mon = month, .tm_mday = day,
phurst@1971	3982 .tm_hour = hour, .tm_min = minute, .tm_sec = second };
phurst@1984	3983 uw_Basis_time r = { timelocal(&tm) };
phurst@1971	3984 return r;
phurst@1971	3985 }
phurst@1971	3986
phurst@1971	3987 uw_Basis_int uw_Basis_datetimeYear(uw_context ctx, uw_Basis_time time) {
phurst@1971	3988 struct tm tm;
phurst@1982	3989 localtime_r(&time.seconds, &tm);
phurst@1971	3990 return tm.tm_year + 1900;
phurst@1971	3991 }
phurst@1971	3992
phurst@1971	3993 uw_Basis_int uw_Basis_datetimeMonth(uw_context ctx, uw_Basis_time time) {
phurst@1971	3994 struct tm tm;
phurst@1982	3995 localtime_r(&time.seconds, &tm);
phurst@1971	3996 return tm.tm_mon;
phurst@1971	3997 }
phurst@1971	3998
phurst@1971	3999 uw_Basis_int uw_Basis_datetimeDay(uw_context ctx, uw_Basis_time time) {
phurst@1971	4000 struct tm tm;
phurst@1982	4001 localtime_r(&time.seconds, &tm);
phurst@1971	4002 return tm.tm_mday;
phurst@1971	4003 }
phurst@1971	4004
phurst@1971	4005 uw_Basis_int uw_Basis_datetimeHour(uw_context ctx, uw_Basis_time time) {
phurst@1971	4006 struct tm tm;
phurst@1982	4007 localtime_r(&time.seconds, &tm);
phurst@1971	4008 return tm.tm_hour;
phurst@1971	4009 }
phurst@1971	4010
phurst@1971	4011 uw_Basis_int uw_Basis_datetimeMinute(uw_context ctx, uw_Basis_time time) {
phurst@1971	4012 struct tm tm;
phurst@1982	4013 localtime_r(&time.seconds, &tm);
phurst@1971	4014 return tm.tm_min;
phurst@1971	4015 }
phurst@1971	4016
phurst@1971	4017 uw_Basis_int uw_Basis_datetimeSecond(uw_context ctx, uw_Basis_time time) {
phurst@1971	4018 struct tm tm;
phurst@1982	4019 localtime_r(&time.seconds, &tm);
phurst@1971	4020 return tm.tm_sec;
phurst@1971	4021 }
phurst@1971	4022
phurst@1973	4023 uw_Basis_int uw_Basis_datetimeDayOfWeek(uw_context ctx, uw_Basis_time time) {
phurst@1973	4024 struct tm tm;
phurst@1982	4025 localtime_r(&time.seconds, &tm);
phurst@1973	4026 return tm.tm_wday;
phurst@1973	4027 }
phurst@1971	4028
phurst@1971	4029
adamc@1061	4030 void uw_get_global(uw_context ctx, char name) {
adamc@1061	4031 int i;
adamc@1061	4032
adamc@1061	4033 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4034 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	4035 return ctx->globals[i].data;
adamc@1061	4036
adamc@1061	4037 return NULL;
adamc@1061	4038 }
adamc@1061	4039
adamc@1113	4040 size_t uw_globals_max = SIZE_MAX;
adamc@1113	4041
adamc@1061	4042 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	4043 int i;
adamc@1061	4044
adamc@1061	4045 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4046 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	4047 if (ctx->globals[i].free)
adamc@1061	4048 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	4049 ctx->globals[i].data = data;
adamc@1061	4050 ctx->globals[i].free = free;
adamc@1061	4051 return;
adamc@1061	4052 }
adamc@1089	4053
adamc@1113	4054 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	4055 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	4056
adamc@1061	4057 ++ctx->n_globals;
adamc@1061	4058 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	4059 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	4060 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	4061 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	4062 }
adamc@1061	4063
adamc@1061	4064 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	4065 return !!isalnum((int)c);
adamc@1061	4066 }
adamc@1061	4067
adamc@1061	4068 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	4069 return !!isalpha((int)c);
adamc@1061	4070 }
adamc@1061	4071
adamc@1061	4072 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	4073 return !!isblank((int)c);
adamc@1061	4074 }
adamc@1061	4075
adamc@1061	4076 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	4077 return !!iscntrl((int)c);
adamc@1061	4078 }
adamc@1061	4079
adamc@1061	4080 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4081 return !!isdigit((int)c);
adamc@1061	4082 }
adamc@1061	4083
adamc@1061	4084 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	4085 return !!isgraph((int)c);
adamc@1061	4086 }
adamc@1061	4087
adamc@1061	4088 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4089 return !!islower((int)c);
adamc@1061	4090 }
adamc@1061	4091
adamc@1061	4092 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	4093 return !!isprint((int)c);
adamc@1061	4094 }
adamc@1061	4095
adamc@1061	4096 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	4097 return !!ispunct((int)c);
adamc@1061	4098 }
adamc@1061	4099
adamc@1061	4100 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	4101 return !!isspace((int)c);
adamc@1061	4102 }
adamc@1063	4103
adamc@1061	4104 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4105 return !!isupper((int)c);
adamc@1061	4106 }
adamc@1061	4107
adamc@1061	4108 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4109 return !!isxdigit((int)c);
adamc@1061	4110 }
adamc@1061	4111
adamc@1061	4112 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4113 return tolower((int)c);
adamc@1061	4114 }
adamc@1061	4115
adamc@1061	4116 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4117 return toupper((int)c);
adamc@1061	4118 }
adamc@1066	4119
adamc@1128	4120 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	4121 return (unsigned char)c;
adamc@1128	4122 }
adamc@1128	4123
adamc@1128	4124 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	4125 return n;
adamc@1128	4126 }
adamc@1128	4127
adamc@1066	4128 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	4129 return ctx->current_url;
adamc@1066	4130 }
adamc@1066	4131
adamc@1066	4132 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	4133 ctx->current_url = s;
adamc@1066	4134 }
adamc@1114	4135
adamc@1114	4136 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	4137 ctx->deadline = n;
adamc@1114	4138 }
adamc@1114	4139
adamc@1114	4140 void uw_check_deadline(uw_context ctx) {
adamc@1114	4141 if (uw_time > ctx->deadline)
adamc@1114	4142 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	4143 }
adamc@1115	4144
adamc@1115	4145 size_t uw_database_max = SIZE_MAX;
adamc@1120	4146
adam@1389	4147 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@1389	4148 fprintf(stderr, "%s\n", s);
adam@1389	4149 return 0;
adam@1389	4150 }
adam@1389	4151
adamc@1120	4152 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
grrwlf@1997	4153 if (ctx->loggers->log_debug)
grrwlf@1997	4154 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@1334	4155 else
adam@1334	4156 fprintf(stderr, "%s\n", s);
adamc@1120	4157 return uw_unit_v;
adamc@1120	4158 }
adamc@1250	4159
adam@1933	4160 static pthread_mutex_t rand_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@1933	4161
adamc@1250	4162 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@1486	4163 uw_Basis_int ret;
adam@1933	4164 pthread_mutex_lock(&rand_mutex);
adam@1486	4165 int r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@1933	4166 pthread_mutex_unlock(&rand_mutex);
phurst@1981	4167
adam@1486	4168 if (r)
adam@1486	4169 return abs(ret);
adam@1486	4170 else
adam@1486	4171 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	4172 }
adam@1347	4173
adam@1347	4174 void uw_noPostBody(uw_context ctx) {
adam@1347	4175 ctx->hasPostBody = 0;
adam@1347	4176 }
adam@1347	4177
adam@1347	4178 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	4179 ctx->hasPostBody = 1;
adam@1347	4180 ctx->postBody = pb;
adam@1347	4181 }
adam@1347	4182
adam@1347	4183 int uw_hasPostBody(uw_context ctx) {
adam@1347	4184 return ctx->hasPostBody;
adam@1347	4185 }
adam@1347	4186
adam@1386	4187 void uw_isPost(uw_context ctx) {
adam@1386	4188 ctx->isPost = 1;
adam@1386	4189 }
adam@1386	4190
adam@1386	4191 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4192 return ctx->isPost;
adam@1386	4193 }
adam@1386	4194
adam@1485	4195 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4196 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4197 }
adam@1485	4198
adam@1370	4199 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4200 ctx->queryString = s;
adam@1370	4201 }
adam@1370	4202
adam@1370	4203 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4204 return ctx->queryString;
adam@1370	4205 }
adam@1370	4206
adam@1347	4207 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4208 if (ctx->hasPostBody)
adam@1347	4209 return ctx->postBody;
adam@1347	4210 else
adam@1347	4211 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4212 }
adam@1349	4213
adam@1349	4214 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4215 int r = setjmp(ctx->jmp_buf);
adam@1349	4216
adam@1349	4217 if (r == 0) {
adam@1936	4218 uw_ensure_transaction(ctx);
adam@1418	4219
adam@1349	4220 callback(ctx);
adam@1349	4221 }
adam@1349	4222
adam@1349	4223 return r;
adam@1349	4224 }
adam@1360	4225
adam@1360	4226 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4227 char buf[14];
adam@1397	4228 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4229 }
adam@1365	4230
adam@1365	4231 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4232 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	4233 }
adam@1365	4234
adam@1365	4235 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4236 return !!(t1.seconds < t2.seconds \|\| t1.microseconds < t2.microseconds);
adam@1365	4237 }
adam@1365	4238
adam@1365	4239 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4240 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4241 }
adam@1365	4242
adam@1372	4243 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4244 struct tm stm = {};
adam@1375	4245 char *end = strchr(s, 0);
adam@1449	4246 stm.tm_isdst = -1;
adam@1375	4247
adam@1632	4248 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4249 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4250
kkallio@1448	4251 r->seconds = timegm(&stm);
adam@1373	4252 r->microseconds = 0;
adam@1373	4253
adam@1373	4254 return r;
adam@1374	4255 }
adam@1374	4256 else
adam@1373	4257 return NULL;
adam@1372	4258 }
adam@1407	4259
adam@1407	4260 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4261 int r = setjmp(ctx->jmp_buf);
adam@1407	4262
adam@1407	4263 if (ctx->app->on_error) {
adam@1407	4264 if (r == 0) {
adam@1936	4265 uw_ensure_transaction(ctx);
adam@1407	4266
adam@1409	4267 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4268 if (on_success[0])
adam@1409	4269 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4270 else
adam@1409	4271 uw_write_header(ctx, "Status: ");
adam@1409	4272 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919	4273 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1956	4274 uw_write(ctx, ctx->app->is_html5 ? uw_begin_html5 : uw_begin_xhtml);
adam@1407	4275 ctx->app->on_error(ctx, msg);
adam@1407	4276 uw_write(ctx, "</html>");
adam@1407	4277 }
adam@1407	4278
adam@1407	4279 return r;
adam@1407	4280 } else
adam@1407	4281 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4282 }
adam@1451	4283
adam@1451	4284 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4285 ctx->allowed_to_return_indirectly = 1;
adam@1451	4286 }
adam@1483	4287
adam@1556	4288 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4289 int len;
adam@1703	4290 char *r;
adam@1703	4291
adam@1703	4292 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4293 r = ctx->heap.front;
adam@1703	4294 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4295 ctx->heap.front += len+1;
adam@1703	4296 return r;
adam@1556	4297 }
adam@1571	4298
adam@1571	4299 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4300 return n;
adam@1571	4301 }
adam@1571	4302
adam@1571	4303 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4304 return ceil(n);
adam@1571	4305 }
adam@1571	4306
adam@1571	4307 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4308 return trunc(n);
adam@1571	4309 }
adam@1571	4310
adam@1571	4311 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4312 return round(n);
adam@1571	4313 }
adam@1755	4314
adam@1755	4315 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755	4316 char *p;
adam@1755	4317
adam@1755	4318 for (p = s; *p; ++p) {
adam@1755	4319 char c = *p;
adam@1801	4320 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755	4321 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4322 }
adam@1755	4323
adam@1755	4324 return s;
adam@1755	4325 }
adam@1755	4326
adam@1755	4327 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4328 char *p;
adam@1755	4329
adam@1755	4330 for (p = s; *p; ++p) {
adam@1755	4331 char c = *p;
adam@1801	4332 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4333 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4334 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4335 }
adam@1755	4336
adam@1755	4337 return s;
adam@1755	4338 }
adam@1755	4339
adam@1755	4340 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4341 char *p;
adam@1755	4342
adam@1755	4343 if (!*s)
adam@1755	4344 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4345
adam@1801	4346 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4347 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4348
adam@1755	4349 for (p = s; *p; ++p) {
adam@1755	4350 char c = *p;
adam@1801	4351 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4352 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4353 }
adam@1755	4354
adam@1755	4355 return s;
adam@1755	4356 }
adam@1787	4357
adam@1787	4358 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4359 return f.name;
adam@1787	4360 }
adam@1787	4361
adam@1787	4362 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4363 return f.value;
adam@1787	4364 }
adam@1787	4365
adam@1787	4366 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4367 return f.remaining;
adam@1787	4368 }
adam@1787	4369
adam@1787	4370 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4371 char *unurl;
adam@1787	4372 uw_Basis_postField *f;
adam@1787	4373
adam@1788	4374 if (!ctx->hasPostBody)
adam@1788	4375 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4376
adam@1788	4377 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4378 return NULL;
adam@1787	4379
adam@1787	4380 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4381 unurl = s;
adam@1787	4382 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4383 s = strchr(s, 0);
adam@1788	4384 if (!s)
adam@1788	4385 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4386 ++s;
adam@1788	4387 unurl = s;
adam@1788	4388 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4389 s = strchr(s, 0);
adam@1788	4390 if (!s)
adam@1788	4391 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4392 f->remaining = s+1;
adam@1787	4393
adam@1787	4394 return f;
adam@1787	4395 }

Mercurial > urweb

annotate src/c/urweb.c @ 2000:bddee3af70c4