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

annotate src/c/urweb.c @ 2229:54884b28b6c6

Merge.

author	Ziv Scully <ziv@mit.edu>
date	Tue, 07 Apr 2015 17:26:53 -0400
parents	e10881cd92da
children	2f7ed04332a0

rev	line source
adamc@1268	1 #include "config.h"
adamc@1268	2
adamc@117	3 #include <stdlib.h>
adamc@102	4 #include <stdio.h>
adamc@117	5 #include <string.h>
adamc@457	6 #include <strings.h>
adamc@106	7 #include <ctype.h>
adamc@167	8 #include <setjmp.h>
adamc@167	9 #include <stdarg.h>
adamc@682	10 #include <assert.h>
adamc@741	11 #include <ctype.h>
adamc@1114	12 #include <limits.h>
adamc@1113	13 #include <stdint.h>
adamc@1094	14 #include <sys/types.h>
adamc@1094	15 #include <sys/socket.h>
adam@1397	16 #include <openssl/des.h>
adam@1486	17 #include <openssl/rand.h>
adam@1374	18 #include <time.h>
adam@1571	19 #include <math.h>
adamc@102	20
adamc@667	21 #include <pthread.h>
adamc@667	22
adamc@102	23 #include "types.h"
adamc@102	24
adam@1431	25 uw_unit uw_unit_v = 0;
adamc@102	26
adamc@667	27
adamc@667	28 // Socket extras
adamc@667	29
adamc@863	30 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667	31 while (len > 0) {
adamc@856	32 ssize_t n = send(sock, buf, len, 0);
adamc@856	33
adamc@856	34 if (n < 0)
adamc@856	35 return n;
adamc@856	36
adamc@856	37 buf += n;
adamc@856	38 len -= n;
adamc@856	39 }
adamc@856	40
adamc@856	41 return 0;
adamc@856	42 }
adamc@856	43
adamc@856	44 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856	45 while (len > 0) {
adamc@856	46 ssize_t n = write(fd, buf, len);
adamc@667	47
adamc@667	48 if (n < 0)
adamc@667	49 return n;
adamc@667	50
adamc@667	51 buf += n;
adamc@667	52 len -= n;
adamc@667	53 }
adamc@667	54
adamc@667	55 return 0;
adamc@667	56 }
adamc@667	57
adamc@667	58
adamc@667	59 // Buffers
adamc@667	60
adam@1369	61 void uw_buffer_init(size_t max, uw_buffer *b, size_t s) {
adamc@1113	62 b->max = max;
adamc@667	63 b->front = b->start = malloc(s);
adamc@667	64 b->back = b->front + s;
adamc@667	65 }
adamc@667	66
adam@1369	67 void uw_buffer_free(uw_buffer *b) {
adamc@667	68 free(b->start);
adamc@667	69 }
adamc@667	70
adam@1369	71 void uw_buffer_reset(uw_buffer *b) {
adamc@667	72 b->front = b->start;
adamc@667	73 }
adamc@667	74
adam@1369	75 int uw_buffer_check(uw_buffer *b, size_t extra) {
adamc@667	76 if (b->back - b->front < extra) {
adamc@667	77 size_t desired = b->front - b->start + extra, next;
adamc@667	78 char *new_heap;
adamc@667	79
adamc@667	80 next = b->back - b->start;
adamc@667	81 if (next == 0)
adamc@667	82 next = 1;
adamc@667	83 for (; next < desired; next *= 2);
adamc@667	84
adamc@1134	85 if (next > b->max) {
adamc@1113	86 if (desired <= b->max)
adamc@1113	87 next = desired;
adamc@1113	88 else
adamc@1113	89 return 1;
adamc@1134	90 }
adamc@1113	91
adamc@667	92 new_heap = realloc(b->start, next);
adamc@667	93 b->front = new_heap + (b->front - b->start);
adamc@667	94 b->back = new_heap + next;
adamc@667	95 b->start = new_heap;
adamc@667	96 }
adamc@1113	97
adamc@1113	98 return 0;
adamc@1113	99 }
adamc@1113	100
adamc@1113	101 __attribute__((noreturn)) void uw_error(uw_context, failure_kind, const char *, ...);
adamc@1113	102
adam@1369	103 static void ctx_uw_buffer_check(uw_context ctx, const char kind, uw_buffer b, size_t extra) {
adam@1369	104 if (uw_buffer_check(b, extra))
adamc@1113	105 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@667	106 }
adamc@667	107
adam@1369	108 size_t uw_buffer_used(uw_buffer *b) {
adamc@667	109 return b->front - b->start;
adamc@667	110 }
adamc@667	111
adam@1369	112 size_t uw_buffer_avail(uw_buffer *b) {
adamc@667	113 return b->back - b->start;
adamc@667	114 }
adamc@667	115
adam@1369	116 int uw_buffer_append(uw_buffer b, const char s, size_t len) {
adam@1369	117 if (uw_buffer_check(b, len+1))
adamc@1113	118 return 1;
adamc@1113	119
adamc@1113	120 memcpy(b->front, s, len);
adamc@1113	121 b->front += len;
adamc@1113	122 *b->front = 0;
adamc@1113	123
adamc@1113	124 return 0;
adamc@1113	125 }
adamc@1113	126
adam@1369	127 static void ctx_uw_buffer_append(uw_context ctx, const char kind, uw_buffer b, const char *s, size_t len) {
adam@1369	128 ctx_uw_buffer_check(ctx, kind, b, len+1);
adamc@1113	129
adamc@668	130 memcpy(b->front, s, len);
adamc@668	131 b->front += len;
adamc@672	132 *b->front = 0;
adamc@668	133 }
adamc@667	134
adamc@668	135
adamc@672	136 // Persistent state types
adamc@667	137
adamc@667	138 typedef enum { UNUSED, USED } usage;
adamc@667	139
adamc@667	140 typedef struct client {
adamc@682	141 unsigned id;
adamc@667	142 usage mode;
adamc@682	143 int pass;
adamc@682	144 struct client *next;
adamc@689	145 pthread_mutex_t lock, pull_lock;
adam@1369	146 uw_buffer msgs;
adamc@682	147 int sock;
adamc@863	148 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	149 int (*close)(int fd);
adamc@682	150 time_t last_contact;
adamc@682	151 unsigned n_channels;
adamc@685	152 unsigned refcount;
adamc@1121	153 void *data;
adamc@667	154 } client;
adamc@667	155
adamc@672	156
adamc@672	157 // Persistent client state
adamc@672	158
adamc@682	159 static client *clients, clients_free, *clients_used;
adamc@682	160 static unsigned n_clients;
adamc@667	161
adam@1707	162 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@1113	163 size_t uw_messages_max = SIZE_MAX;
adamc@1113	164 size_t uw_clients_max = SIZE_MAX;
adamc@1113	165
adamc@1121	166 void *uw_init_client_data();
adamc@1121	167 void uw_free_client_data(void *);
adamc@1121	168 void uw_copy_client_data(void dst, void src);
adamc@1121	169
adam@2104	170 static pthread_mutex_t rand_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2104	171
adam@2104	172 static uw_Basis_int my_rand() {
adam@2104	173 pthread_mutex_lock(&rand_mutex);
adam@2105	174 int ret, r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@2104	175 pthread_mutex_unlock(&rand_mutex);
adam@2104	176
adam@2104	177 if (r)
adam@2105	178 return abs(ret);
adam@2104	179 else
adam@2104	180 return -1;
adam@2104	181 }
adam@2104	182
adamc@682	183 static client *new_client() {
adamc@667	184 client *c;
adamc@667	185
adamc@667	186 pthread_mutex_lock(&clients_mutex);
adamc@667	187
adamc@667	188 if (clients_free) {
adamc@667	189 c = clients_free;
adamc@682	190 clients_free = clients_free->next;
adamc@667	191 }
adam@1672	192 else if (n_clients >= uw_clients_max) {
adam@1672	193 pthread_mutex_unlock(&clients_mutex);
adamc@1113	194 return NULL;
adam@1672	195 } else {
adamc@667	196 ++n_clients;
adamc@667	197 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	198 c = malloc(sizeof(client));
adamc@667	199 c->id = n_clients-1;
adamc@682	200 pthread_mutex_init(&c->lock, NULL);
adamc@689	201 pthread_mutex_init(&c->pull_lock, NULL);
adam@1369	202 uw_buffer_init(uw_messages_max, &c->msgs, 0);
adamc@667	203 clients[n_clients-1] = c;
adamc@667	204 }
adamc@667	205
adamc@682	206 pthread_mutex_lock(&c->lock);
adamc@667	207 c->mode = USED;
adam@2104	208 c->pass = my_rand();
adamc@682	209 c->sock = -1;
adamc@682	210 c->last_contact = time(NULL);
adam@1369	211 uw_buffer_reset(&c->msgs);
adamc@682	212 c->n_channels = 0;
adamc@685	213 c->refcount = 0;
adamc@1121	214 c->data = uw_init_client_data();
adamc@682	215 pthread_mutex_unlock(&c->lock);
adamc@682	216
adamc@682	217 c->next = clients_used;
adamc@682	218 clients_used = c;
adamc@667	219
adamc@667	220 pthread_mutex_unlock(&clients_mutex);
adamc@667	221
adamc@667	222 return c;
adamc@667	223 }
adamc@667	224
adamc@685	225 static void use_client(client *c) {
adamc@685	226 pthread_mutex_lock(&c->lock);
adamc@685	227 ++c->refcount;
adamc@685	228 pthread_mutex_unlock(&c->lock);
adamc@689	229 pthread_mutex_lock(&c->pull_lock);
adamc@685	230 }
adamc@685	231
adamc@685	232 static void release_client(client *c) {
adamc@689	233 pthread_mutex_unlock(&c->pull_lock);
adamc@685	234 pthread_mutex_lock(&c->lock);
adamc@685	235 --c->refcount;
adamc@685	236 pthread_mutex_unlock(&c->lock);
adamc@685	237 }
adamc@685	238
adamc@856	239 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adam@1707	240 static pthread_t pruning_thread;
adam@1707	241 static int pruning_thread_initialized = 0;
adamc@667	242
adamc@682	243 static client *find_client(unsigned id) {
adamc@667	244 client *c;
adam@1708	245 int i_am_pruner = pruning_thread_initialized && pthread_equal(pruning_thread, pthread_self());
adam@1708	246
adam@1708	247 if (!i_am_pruner) pthread_mutex_lock(&clients_mutex);
adamc@667	248
adamc@667	249 if (id >= n_clients) {
adam@1708	250 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	251 return NULL;
adamc@667	252 }
adamc@667	253
adamc@667	254 c = clients[id];
adamc@667	255
adam@1708	256 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	257 return c;
adamc@668	258 }
adamc@668	259
adamc@856	260 static char *on_success = "HTTP/1.1 200 OK\r\n";
adam@1409	261 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	262
adamc@856	263 void uw_set_on_success(char *s) {
adamc@856	264 on_success = s;
adamc@856	265 }
adamc@856	266
adam@1552	267 static void chastise(int (send)(int sockfd, const void buf, ssize_t len), int sock) {
adam@1552	268 send(sock, on_success, strlen(on_success));
adam@1552	269 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1552	270 send(sock, "R", 1);
adam@1552	271 close(sock);
adam@1552	272 }
adam@1552	273
adamc@863	274 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	275 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	276 int (*close)(int fd),
adamc@864	277 void *logger_data, uw_logger log_error) {
adamc@682	278 client *c = find_client(id);
adamc@668	279
adamc@668	280 if (c == NULL) {
adam@1552	281 chastise(send, sock);
adamc@864	282 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	283 return;
adamc@667	284 }
adamc@667	285
adamc@682	286 pthread_mutex_lock(&c->lock);
adamc@671	287
adamc@682	288 if (c->mode != USED) {
adamc@682	289 pthread_mutex_unlock(&c->lock);
adam@1552	290 chastise(send, sock);
adamc@864	291 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	292 return;
adamc@667	293 }
adamc@667	294
adamc@682	295 if (pass != c->pass) {
adamc@682	296 pthread_mutex_unlock(&c->lock);
adam@1552	297 chastise(send, sock);
adamc@864	298 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	299 return;
adamc@667	300 }
adamc@667	301
adamc@682	302 if (c->sock != -1) {
adamc@863	303 c->close(c->sock);
adamc@682	304 c->sock = -1;
adamc@682	305 }
adamc@667	306
adamc@682	307 c->last_contact = time(NULL);
adamc@682	308
adam@1369	309 if (uw_buffer_used(&c->msgs) > 0) {
adamc@863	310 send(sock, on_success, strlen(on_success));
adamc@863	311 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1369	312 send(sock, c->msgs.start, uw_buffer_used(&c->msgs));
adam@1369	313 uw_buffer_reset(&c->msgs);
adamc@667	314 close(sock);
adamc@667	315 }
adamc@863	316 else {
adamc@682	317 c->sock = sock;
adamc@863	318 c->send = send;
adamc@863	319 c->close = close;
adamc@863	320 }
adamc@667	321
adamc@682	322 pthread_mutex_unlock(&c->lock);
adamc@667	323 }
adamc@667	324
adamc@682	325 static void free_client(client *c) {
adamc@682	326 c->mode = UNUSED;
adamc@682	327 c->pass = -1;
adamc@667	328
adamc@682	329 c->next = clients_free;
adamc@682	330 clients_free = c;
adamc@667	331 }
adamc@667	332
adamc@682	333 static uw_Basis_channel new_channel(client *c) {
adamc@682	334 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	335 return ch;
adamc@668	336 }
adamc@668	337
adam@1447	338 static void client_send(client c, uw_buffer msg, const char *script, int script_len) {
adamc@685	339 pthread_mutex_lock(&c->lock);
adamc@671	340
adamc@682	341 if (c->sock != -1) {
adamc@863	342 c->send(c->sock, on_success, strlen(on_success));
adamc@863	343 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1447	344 if (script_len > 0) {
adam@1447	345 c->send(c->sock, "E\n", 2);
adam@1447	346 c->send(c->sock, script, script_len);
adam@1447	347 c->send(c->sock, "\n", 1);
adam@1447	348 }
adam@1369	349 c->send(c->sock, msg->start, uw_buffer_used(msg));
adamc@863	350 c->close(c->sock);
adamc@682	351 c->sock = -1;
adam@1665	352 } else if (uw_buffer_append(&c->msgs, msg->start, uw_buffer_used(msg)))
adamc@1113	353 fprintf(stderr, "Client message buffer size exceeded");
adamc@671	354
adamc@685	355 pthread_mutex_unlock(&c->lock);
adamc@668	356 }
adamc@668	357
adamc@668	358
adamc@668	359 // Global entry points
adamc@668	360
adamc@1164	361 extern void uw_global_custom();
adamc@1104	362 extern void uw_init_crypto();
adamc@1104	363
adamc@668	364 void uw_global_init() {
adamc@668	365 clients = malloc(0);
adamc@1104	366
adamc@1164	367 uw_global_custom();
adamc@1104	368 uw_init_crypto();
adamc@1094	369 }
adamc@1094	370
adamc@1094	371 void uw_app_init(uw_app *app) {
adamc@1094	372 app->client_init();
adamc@668	373 }
adamc@668	374
adam@1332	375 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114	376
adamc@668	377
adamc@667	378 // Single-request state
adamc@667	379
adamc@323	380 typedef struct regions {
adamc@323	381 struct regions *next;
adamc@323	382 } regions;
adamc@323	383
adamc@425	384 typedef struct {
adamc@425	385 void (func)(void);
adamc@425	386 void *arg;
adamc@425	387 } cleanup;
adamc@425	388
adamc@671	389 typedef struct {
adamc@682	390 unsigned client;
adam@1369	391 uw_buffer msgs;
adamc@682	392 } delta;
adamc@671	393
adamc@737	394 typedef enum {
adamc@759	395 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	396 } input_kind;
adamc@737	397
adamc@756	398 typedef struct input {
adamc@737	399 input_kind kind;
adamc@737	400 union {
adamc@737	401 char *normal;
adamc@739	402 uw_Basis_file file;
adamc@756	403 struct {
adamc@759	404 struct input fields, parent;
adamc@756	405 } subform;
adamc@759	406 struct {
adamc@759	407 struct input entries, parent;
adamc@759	408 } subforms;
adamc@759	409 struct {
adamc@759	410 struct input fields, next, *parent;
adamc@759	411 } entry;
adamc@737	412 } data;
adamc@737	413 } input;
adamc@737	414
adamc@771	415 typedef struct {
adamc@771	416 void *data;
adam@1327	417 uw_callback commit, rollback;
adam@1327	418 uw_callback_with_retry free;
adamc@771	419 } transactional;
adamc@771	420
adamc@1061	421 typedef struct {
adamc@1061	422 char *name;
adamc@1061	423 void *data;
adamc@1061	424 void (free)(void);
adamc@1061	425 } global;
adamc@1061	426
adamc@311	427 struct uw_context {
adamc@1094	428 uw_app *app;
adam@1446	429 int id;
adamc@1094	430
adamc@854	431 char (get_header)(void , const char );
adamc@854	432 void *get_header_data;
adamc@457	433
adam@1799	434 char (get_env)(void , const char );
adam@1799	435 void *get_env_data;
adam@1799	436
adam@1369	437 uw_buffer outHeaders, page, heap, script;
adam@1451	438 int allowed_to_return_indirectly, returning_indirectly;
adamc@759	439 input inputs, subinputs, *cur_container;
adamc@1094	440 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	441
adam@1446	442 unsigned long long source_count;
adamc@562	443
adamc@272	444 void *db;
adam@1931	445 int transaction_started;
adamc@272	446
adamc@167	447 jmp_buf jmp_buf;
adamc@167	448
adamc@323	449 regions *regions;
adamc@323	450
adamc@425	451 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	452
adamc@1094	453 const char *script_header;
adamc@643	454
adam@2056	455 int needs_push, needs_sig, could_write_db, at_most_one_query;
adamc@693	456
adamc@682	457 size_t n_deltas, used_deltas;
adamc@682	458 delta *deltas;
adamc@671	459
adamc@682	460 client *client;
adamc@682	461
adamc@771	462 transactional *transactionals;
adamc@771	463 size_t n_transactionals, used_transactionals;
adamc@771	464
adamc@1061	465 global *globals;
adamc@1061	466 size_t n_globals;
adamc@1061	467
adamc@1066	468 char *current_url;
adamc@1066	469
adamc@1114	470 int deadline;
adamc@1114	471
adamc@1121	472 void *client_data;
adamc@1121	473
grrwlf@1997	474 uw_loggers *loggers;
adam@1334	475
adam@1386	476 int isPost, hasPostBody;
adam@1347	477 uw_Basis_postBody postBody;
adam@1370	478 uw_Basis_string queryString;
adam@1347	479
adam@1556	480 unsigned nextId;
adam@1556	481
adam@1782	482 int amInitializing;
adam@1782	483
adamc@167	484 char error_message[ERROR_BUF_LEN];
adam@1877	485
adam@1877	486 int usedSig, needsResig;
adam@1949	487
adam@1949	488 char *output_buffer;
adam@1949	489 size_t output_buffer_size;
adam@2073	490
ziv@2204	491 // For caching.
ziv@2204	492 char *recording;
ziv@2220	493
adam@2073	494 int remoteSock;
adamc@117	495 };
adamc@117	496
adamc@1113	497 size_t uw_headers_max = SIZE_MAX;
adamc@1113	498 size_t uw_page_max = SIZE_MAX;
adamc@1113	499 size_t uw_heap_max = SIZE_MAX;
adamc@1113	500 size_t uw_script_max = SIZE_MAX;
adamc@1113	501
grrwlf@1997	502 uw_context uw_init(int id, uw_loggers *lg) {
adamc@311	503 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	504
adamc@1094	505 ctx->app = NULL;
adam@1446	506 ctx->id = id;
adamc@1094	507
adamc@854	508 ctx->get_header = NULL;
adamc@854	509 ctx->get_header_data = NULL;
adamc@457	510
adam@1799	511 ctx->get_env = NULL;
adam@1799	512 ctx->get_env_data = NULL;
adam@1799	513
adam@1413	514 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413	515 ctx->outHeaders.start[0] = 0;
adam@1413	516 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413	517 ctx->page.start[0] = 0;
adam@1451	518 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	519 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369	520 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667	521 ctx->script.start[0] = 0;
adamc@136	522
adamc@1094	523 ctx->inputs = malloc(0);
adamc@759	524 ctx->cur_container = NULL;
adamc@756	525 ctx->subinputs = malloc(0);
adamc@1094	526 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	527
adamc@272	528 ctx->db = NULL;
adam@1931	529 ctx->transaction_started = 0;
adamc@272	530
adamc@323	531 ctx->regions = NULL;
adamc@323	532
adamc@425	533 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	534
adamc@643	535 ctx->script_header = "";
adamc@693	536 ctx->needs_push = 0;
adamc@736	537 ctx->needs_sig = 0;
adam@1936	538 ctx->could_write_db = 1;
adam@2056	539 ctx->at_most_one_query = 0;
adamc@1104	540
adamc@565	541 ctx->source_count = 0;
adamc@562	542
adamc@682	543 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	544 ctx->deltas = malloc(0);
adamc@671	545
adamc@700	546 ctx->client = NULL;
adamc@700	547
adamc@700	548 ctx->error_message[0] = 0;
adamc@700	549
adamc@771	550 ctx->transactionals = malloc(0);
adamc@771	551 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	552
adamc@1061	553 ctx->globals = malloc(0);
adamc@1061	554 ctx->n_globals = 0;
adamc@1061	555
adamc@1066	556 ctx->current_url = "";
adamc@1066	557
adamc@1114	558 ctx->deadline = INT_MAX;
adamc@1114	559
adamc@1121	560 ctx->client_data = uw_init_client_data();
adamc@1121	561
grrwlf@1997	562 ctx->loggers = lg;
adam@1334	563
adam@1386	564 ctx->isPost = ctx->hasPostBody = 0;
adam@1347	565
adam@1370	566 ctx->queryString = NULL;
adam@1370	567
adam@1556	568 ctx->nextId = 0;
adam@1556	569
adam@1782	570 ctx->amInitializing = 0;
adam@1782	571
adam@1877	572 ctx->usedSig = 0;
adam@1877	573 ctx->needsResig = 0;
adam@1877	574
adam@1949	575 ctx->output_buffer = malloc(1);
adam@1949	576 ctx->output_buffer_size = 1;
adam@1949	577
ziv@2204	578 ctx->recording = 0;
ziv@2204	579
adam@2073	580 ctx->remoteSock = -1;
adam@2073	581
adamc@117	582 return ctx;
adamc@106	583 }
adamc@106	584
adamc@1113	585 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	586
adamc@1121	587 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	588 return ctx->app;
adamc@1121	589 }
adamc@1121	590
adamc@1113	591 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	592 ctx->app = app;
adamc@1094	593
adamc@1105	594 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	595 if (app->inputs_len > uw_inputs_max)
adamc@1113	596 return 1;
adamc@1113	597
adamc@1094	598 ctx->sz_inputs = app->inputs_len;
adamc@1094	599 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	600 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	601 }
adamc@1134	602
adamc@1134	603 return 0;
adamc@1094	604 }
adamc@1094	605
adamc@1121	606 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	607 uw_copy_client_data(ctx->client_data, data);
adamc@1121	608 }
adamc@1121	609
adamc@311	610 void uw_set_db(uw_context ctx, void *db) {
adamc@272	611 ctx->db = db;
adamc@272	612 }
adamc@272	613
adamc@311	614 void *uw_get_db(uw_context ctx) {
adamc@272	615 return ctx->db;
adamc@272	616 }
adamc@272	617
grrwlf@1997	618
grrwlf@1997	619 uw_loggers* uw_get_loggers(struct uw_context *ctx) {
grrwlf@1997	620 return ctx->loggers;
grrwlf@1997	621 }
grrwlf@1997	622
adamc@311	623 void uw_free(uw_context ctx) {
adamc@671	624 size_t i;
adamc@671	625
adam@1369	626 uw_buffer_free(&ctx->outHeaders);
adam@1369	627 uw_buffer_free(&ctx->script);
adam@1369	628 uw_buffer_free(&ctx->page);
adam@1369	629 uw_buffer_free(&ctx->heap);
adamc@144	630 free(ctx->inputs);
adamc@756	631 free(ctx->subinputs);
adamc@425	632 free(ctx->cleanup);
adamc@771	633 free(ctx->transactionals);
adamc@1121	634 uw_free_client_data(ctx->client_data);
adamc@671	635
adamc@682	636 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	637 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	638 free(ctx->deltas);
adamc@671	639
adamc@1061	640 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	641 if (ctx->globals[i].free)
adamc@1089	642 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	643 free(ctx->globals);
adamc@1061	644
adam@1949	645 free(ctx->output_buffer);
adam@1949	646
adamc@136	647 free(ctx);
adamc@136	648 }
adamc@136	649
adamc@562	650 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	651 uw_buffer_reset(&ctx->outHeaders);
adam@1369	652 uw_buffer_reset(&ctx->script);
adamc@667	653 ctx->script.start[0] = 0;
adam@1369	654 uw_buffer_reset(&ctx->page);
adam@1451	655 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	656 uw_buffer_reset(&ctx->heap);
adamc@323	657 ctx->regions = NULL;
adamc@425	658 ctx->cleanup_front = ctx->cleanup;
adamc@682	659 ctx->used_deltas = 0;
adamc@682	660 ctx->client = NULL;
adamc@759	661 ctx->cur_container = NULL;
adamc@771	662 ctx->used_transactionals = 0;
adamc@1117	663 ctx->script_header = "";
adam@1370	664 ctx->queryString = NULL;
adam@1556	665 ctx->nextId = 0;
adam@1782	666 ctx->amInitializing = 0;
adam@1877	667 ctx->usedSig = 0;
adam@1877	668 ctx->needsResig = 0;
adam@2073	669 ctx->remoteSock = -1;
adamc@167	670 }
adamc@167	671
adamc@562	672 void uw_reset_keep_request(uw_context ctx) {
adamc@562	673 uw_reset_keep_error_message(ctx);
adamc@562	674 ctx->error_message[0] = 0;
adamc@167	675 }
adamc@167	676
adamc@311	677 void uw_reset(uw_context ctx) {
adamc@311	678 uw_reset_keep_request(ctx);
adamc@1105	679 if (ctx->app)
adamc@1105	680 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	681 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461	682 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adam@1943	683 ctx->transaction_started = 0;
adamc@144	684 }
adamc@144	685
adamc@311	686 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	687 int r = setjmp(ctx->jmp_buf);
adamc@272	688
adamc@1105	689 if (r == 0 && ctx->app)
adamc@1094	690 ctx->app->db_init(ctx);
adamc@272	691
adamc@272	692 return r;
adamc@272	693 }
adamc@272	694
adamc@1118	695 void uw_close(uw_context ctx) {
adamc@1118	696 ctx->app->db_close(ctx);
adamc@1118	697 }
adamc@1118	698
adam@1446	699 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	700 return ctx->get_header(ctx->get_header_data, h);
adam@1446	701 }
adam@1446	702
adamc@854	703 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	704 ctx->get_header = get_header;
adamc@854	705 ctx->get_header_data = get_header_data;
adamc@742	706 }
adamc@742	707
adam@1799	708 void uw_set_env(uw_context ctx, char (get_env)(void , const char ), void *get_env_data) {
adam@1799	709 ctx->get_env = get_env;
adam@1799	710 ctx->get_env_data = get_env_data;
adam@1799	711 }
adam@1799	712
adamc@801	713 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	714 va_list ap;
adamc@801	715 va_start(ap, fmt);
adamc@801	716
adamc@801	717 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	718 }
adamc@801	719
adamc@1131	720 int uw_has_error(uw_context ctx) {
adamc@1131	721 return ctx->error_message[0] != 0;
adamc@1131	722 }
adamc@1131	723
adamc@311	724 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	725 cleanup *cl;
adamc@425	726
adamc@167	727 va_list ap;
adamc@167	728 va_start(ap, fmt);
adamc@167	729
adamc@167	730 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	731
adamc@425	732 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	733 cl->func(cl->arg);
adamc@425	734
adamc@425	735 ctx->cleanup_front = ctx->cleanup;
adamc@425	736
adamc@190	737 longjmp(ctx->jmp_buf, fk);
adamc@167	738 }
adamc@167	739
adamc@1113	740 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	741
adamc@425	742 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	743 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	744 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	745 if (len == 0)
adamc@425	746 newLen = 1;
adamc@425	747 else
adamc@428	748 newLen = len * 2;
adamc@1113	749
adamc@1134	750 if (newLen > uw_cleanup_max) {
adamc@1113	751 if (len+1 <= uw_cleanup_max)
adamc@1113	752 newLen = uw_cleanup_max;
adamc@1113	753 else
adamc@1113	754 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	755 }
adamc@1113	756
adamc@470	757 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	758 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	759 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	760 }
adamc@425	761
adamc@425	762 ctx->cleanup_front->func = func;
adamc@425	763 ctx->cleanup_front->arg = arg;
adamc@425	764 ++ctx->cleanup_front;
adamc@425	765 }
adamc@425	766
adam@1444	767 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	768
adamc@682	769 void uw_login(uw_context ctx) {
adam@1942	770 char id_s, pass_s;
adam@1942	771
adam@1942	772 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adam@1942	773 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adam@1942	774 unsigned id = atoi(id_s);
adam@1942	775 int pass = atoi(pass_s);
adam@1942	776 client *c = find_client(id);
adam@1942	777
adam@1942	778 if (c == NULL)
adam@1942	779 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	780 else {
adamc@685	781 use_client(c);
adamc@682	782 ctx->client = c;
adam@1942	783
adam@1942	784 if (c->mode != USED)
adam@1942	785 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adam@1942	786 if (c->pass != pass)
adam@1942	787 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@864	788 }
adam@1942	789 } else if (ctx->needs_push) {
adam@1942	790 client *c = new_client();
adam@1942	791
adam@1942	792 if (c == NULL)
adam@1942	793 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adam@1942	794
adam@1942	795 use_client(c);
adam@1942	796 uw_copy_client_data(c->data, ctx->client_data);
adam@1942	797 ctx->client = c;
adamc@682	798 }
adamc@682	799 }
adamc@682	800
adamc@671	801 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	802 int r = setjmp(ctx->jmp_buf);
adamc@671	803
adam@1931	804 if (r == 0)
adam@1931	805 ctx->app->handle(ctx, path);
adam@1931	806
adam@1931	807 return r;
adam@1931	808 }
adam@1931	809
adam@1931	810 void uw_ensure_transaction(uw_context ctx) {
adam@2056	811 if (!ctx->transaction_started && !ctx->at_most_one_query) {
adam@1936	812 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adamc@671	813 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1931	814 ctx->transaction_started = 1;
adamc@671	815 }
adamc@671	816 }
adamc@671	817
adamc@772	818 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	819 if (ctx->client == NULL)
adamc@682	820 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	821
adamc@682	822 return ctx->client->id;
adamc@682	823 }
adamc@682	824
adamc@425	825 void uw_pop_cleanup(uw_context ctx) {
adamc@425	826 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	827 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	828
adamc@425	829 --ctx->cleanup_front;
adamc@425	830 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	831 }
adamc@425	832
adamc@311	833 char *uw_error_message(uw_context ctx) {
adamc@167	834 return ctx->error_message;
adamc@167	835 }
adamc@167	836
adamc@1115	837 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	838 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	839 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	840 }
adamc@1115	841
adamc@759	842 static input *INP(uw_context ctx) {
adamc@759	843 if (ctx->cur_container == NULL)
adamc@759	844 return ctx->inputs;
adamc@759	845 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	846 return ctx->cur_container->data.subform.fields;
adamc@759	847 else if (ctx->cur_container->kind == ENTRY)
adamc@759	848 return ctx->cur_container->data.entry.fields;
adamc@759	849 else
adamc@760	850 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	851 }
adamc@759	852
adamc@760	853 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	854 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	855 *ptr += new_start - old_start;
adamc@760	856 }
adamc@760	857
adamc@760	858 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	859 switch (x->kind) {
adamc@759	860 case SUBFORM:
adamc@760	861 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	862 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	863 break;
adamc@759	864 case SUBFORMS:
adamc@760	865 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	866 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	867 break;
adamc@759	868 case ENTRY:
adamc@760	869 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	870 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	871 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	872 break;
adamc@1134	873 default:
adamc@1134	874 break;
phurst@1981	875 }
adamc@759	876 }
adamc@759	877
adamc@1113	878 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	879
adamc@759	880 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	881 size_t i;
adamc@759	882 input *r;
adamc@759	883
adamc@759	884 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	885 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	886 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	887
adamc@759	888 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	889
adamc@760	890 if (ctx->subinputs != new_subinputs) {
adamc@760	891 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	892 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	893 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	894 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	895
adamc@760	896 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	897
adamc@760	898 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	899 ctx->subinputs = new_subinputs;
adamc@760	900 }
adamc@759	901 }
adamc@759	902
adamc@759	903 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	904
adamc@759	905 for (i = 0; i < len; ++i)
adam@1474	906 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	907
adamc@759	908 return r;
adamc@759	909 }
adamc@756	910
adamc@801	911 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	912 //printf("Input name %s\n", name);
adamc@1038	913
adamc@756	914 if (!strcasecmp(name, ".b")) {
adamc@1094	915 int n = ctx->app->input_num(value);
adamc@756	916 input *inps;
adamc@756	917
adamc@801	918 if (n < 0) {
adam@1444	919 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	920 return -1;
adamc@801	921 }
adamc@801	922
adamc@1094	923 if (n >= ctx->app->inputs_len) {
adam@1444	924 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	925 return -1;
adamc@801	926 }
adamc@756	927
adamc@1094	928 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	929
adamc@759	930 INP(ctx)[n].kind = SUBFORM;
adamc@759	931 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	932 INP(ctx)[n].data.subform.fields = inps;
adamc@759	933 ctx->cur_container = &INP(ctx)[n];
adamc@756	934 } else if (!strcasecmp(name, ".e")) {
adamc@756	935 input *tmp;
adamc@756	936
adamc@801	937 if (ctx->cur_container == NULL) {
adamc@801	938 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	939 return -1;
adamc@801	940 }
adamc@756	941
adamc@759	942 tmp = ctx->cur_container;
adamc@759	943 switch (tmp->kind) {
adamc@759	944 case SUBFORM:
adamc@759	945 ctx->cur_container = tmp->data.subform.parent;
adamc@759	946 tmp->data.subform.parent = NULL;
adamc@759	947 break;
adamc@759	948 case SUBFORMS:
adamc@759	949 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	950 tmp->data.subforms.parent = NULL;
adamc@759	951 break;
adamc@759	952 case ENTRY:
adamc@759	953 ctx->cur_container = tmp->data.entry.parent;
adamc@759	954 break;
adamc@759	955 default:
adamc@801	956 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	957 return -1;
adamc@759	958 }
adamc@759	959 } else if (!strcasecmp(name, ".s")) {
adamc@1094	960 int n = ctx->app->input_num(value);
adamc@759	961
adamc@801	962 if (n < 0) {
adam@1444	963 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	964 return -1;
adamc@801	965 }
adamc@801	966
adamc@1094	967 if (n >= ctx->app->inputs_len) {
adam@1444	968 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	969 return -1;
adamc@801	970 }
adamc@759	971
adamc@759	972 INP(ctx)[n].kind = SUBFORMS;
adamc@759	973 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	974 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	975 ctx->cur_container = &INP(ctx)[n];
adamc@759	976 } else if (!strcasecmp(name, ".i")) {
adamc@759	977 input *inps;
adamc@759	978
adamc@801	979 if (!ctx->cur_container) {
adamc@801	980 uw_set_error(ctx, "New entry without container");
adamc@801	981 return -1;
adamc@801	982 }
adamc@801	983
adamc@801	984 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	985 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	986 return -1;
adamc@801	987 }
adamc@759	988
adamc@1094	989 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	990
adamc@759	991 inps->kind = ENTRY;
adamc@759	992 inps->data.entry.parent = ctx->cur_container;
adamc@759	993 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	994 ctx->cur_container->data.subforms.entries = inps;
adamc@759	995
adamc@759	996 inps->data.entry.fields = inps+1;
adamc@759	997 ctx->cur_container = inps;
adamc@756	998 } else {
adamc@1094	999 int n = ctx->app->input_num(name);
adamc@756	1000
adam@1384	1001 if (n < 0)
adam@1384	1002 return 0;
adamc@801	1003
adamc@1094	1004 if (n >= ctx->app->inputs_len) {
adam@1444	1005 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	1006 return -1;
adamc@801	1007 }
adamc@756	1008
adamc@756	1009 INP(ctx)[n].kind = NORMAL;
adamc@756	1010 INP(ctx)[n].data.normal = value;
adamc@756	1011 }
adamc@801	1012
adamc@801	1013 return 0;
adamc@144	1014 }
adamc@144	1015
adamc@311	1016 char *uw_get_input(uw_context ctx, int n) {
adamc@169	1017 if (n < 0)
adamc@311	1018 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1019 if (n >= ctx->app->inputs_len)
adamc@311	1020 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1021
adamc@756	1022 switch (INP(ctx)[n].kind) {
adamc@737	1023 case UNSET:
adamc@737	1024 return NULL;
adamc@739	1025 case FIL:
adamc@739	1026 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1027 case SUBFORM:
adamc@756	1028 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1029 case SUBFORMS:
adamc@759	1030 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1031 case ENTRY:
adamc@759	1032 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1033 case NORMAL:
adamc@756	1034 return INP(ctx)[n].data.normal;
adamc@737	1035 default:
adamc@737	1036 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1037 }
adamc@138	1038 }
adamc@138	1039
adamc@311	1040 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	1041 if (n < 0)
adamc@311	1042 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1043 if (n >= ctx->app->inputs_len)
adamc@311	1044 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1045
adamc@756	1046 switch (INP(ctx)[n].kind) {
adamc@737	1047 case UNSET:
adamc@737	1048 return "";
adamc@739	1049 case FIL:
adamc@739	1050 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1051 case SUBFORM:
adamc@756	1052 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1053 case SUBFORMS:
adamc@759	1054 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1055 case ENTRY:
adamc@759	1056 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1057 case NORMAL:
adamc@756	1058 return INP(ctx)[n].data.normal;
adamc@737	1059 default:
adamc@737	1060 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1061 }
adamc@737	1062 }
adamc@737	1063
adamc@801	1064 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1065 int n = ctx->app->input_num(name);
adamc@737	1066
adamc@801	1067 if (n < 0) {
adam@2054	1068 uw_set_error(ctx, "Bad file input name");
adamc@801	1069 return -1;
adamc@801	1070 }
adamc@801	1071
adamc@1094	1072 if (n >= ctx->app->inputs_len) {
adam@2054	1073 uw_set_error(ctx, "For file input name, index %d is out of range", n);
adamc@801	1074 return -1;
adamc@801	1075 }
adamc@737	1076
adamc@739	1077 ctx->inputs[n].kind = FIL;
adamc@739	1078 ctx->inputs[n].data.file = f;
adamc@801	1079
adamc@801	1080 return 0;
adamc@737	1081 }
adamc@737	1082
adamc@739	1083 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1084
adamc@739	1085 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1086 if (n < 0)
adamc@737	1087 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1088 if (n >= ctx->app->inputs_len)
adamc@737	1089 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1090
adamc@756	1091 switch (INP(ctx)[n].kind) {
adamc@737	1092 case UNSET:
adamc@737	1093 {
adamc@739	1094 char *data = uw_malloc(ctx, 0);
adamc@740	1095 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1096 return f;
adamc@737	1097 }
adamc@739	1098 case FIL:
adamc@756	1099 return INP(ctx)[n].data.file;
adamc@737	1100 case NORMAL:
adamc@737	1101 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1102 case SUBFORM:
adamc@756	1103 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1104 case SUBFORMS:
adamc@759	1105 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1106 case ENTRY:
adamc@759	1107 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1108 default:
adamc@737	1109 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1110 }
adamc@190	1111 }
adamc@190	1112
adamc@756	1113 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1114 if (n < 0)
adamc@756	1115 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1116 if (n >= ctx->app->inputs_len)
adamc@756	1117 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1118
adamc@756	1119 switch (INP(ctx)[n].kind) {
adamc@756	1120 case UNSET:
adamc@756	1121 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1122 case FIL:
adamc@756	1123 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1124 case NORMAL:
adamc@756	1125 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1126 case SUBFORMS:
adamc@759	1127 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1128 case ENTRY:
adamc@759	1129 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1130 case SUBFORM:
adamc@759	1131 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1132 ctx->cur_container = &INP(ctx)[n];
adamc@756	1133 return;
adamc@756	1134 default:
adamc@756	1135 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1136 }
adamc@756	1137 }
adamc@756	1138
adamc@756	1139 void uw_leave_subform(uw_context ctx) {
adamc@756	1140 input *tmp;
adamc@756	1141
adamc@759	1142 if (ctx->cur_container == NULL)
adamc@756	1143 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1144
adamc@759	1145 tmp = ctx->cur_container;
adamc@759	1146 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1147 tmp->data.subform.parent = NULL;
adamc@759	1148 }
adamc@759	1149
adamc@759	1150 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1151 input *inps;
adamc@759	1152
adamc@759	1153 if (n < 0)
adamc@759	1154 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1155 if (n >= ctx->app->inputs_len)
adamc@759	1156 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1157
adamc@759	1158 switch (INP(ctx)[n].kind) {
adamc@759	1159 case UNSET:
adamc@759	1160 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1161 case FIL:
adamc@759	1162 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1163 case NORMAL:
adamc@759	1164 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1165 case SUBFORM:
adamc@759	1166 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1167 case ENTRY:
adamc@759	1168 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1169 case SUBFORMS:
adamc@759	1170 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1171 if (inps) {
adamc@759	1172 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1173 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1174 return 1;
adamc@759	1175 } else
adamc@759	1176 return 0;
adamc@759	1177 default:
adamc@759	1178 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1179 }
adamc@759	1180 }
adamc@759	1181
adamc@759	1182 int uw_next_entry(uw_context ctx) {
adamc@759	1183 if (ctx->cur_container == NULL)
adamc@759	1184 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1185
adamc@759	1186 switch (ctx->cur_container->kind) {
adamc@759	1187 case UNSET:
adamc@759	1188 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1189 case FIL:
adamc@759	1190 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1191 case NORMAL:
adamc@759	1192 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1193 case SUBFORM:
adamc@759	1194 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1195 case SUBFORMS:
adamc@759	1196 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1197 case ENTRY:
adamc@759	1198 if (ctx->cur_container->data.entry.next) {
adamc@759	1199 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1200 return 1;
adamc@759	1201 } else {
adamc@759	1202 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1203 return 0;
adamc@759	1204 }
adamc@759	1205 default:
adamc@759	1206 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1207 }
adamc@756	1208 }
adamc@756	1209
adamc@643	1210 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1211 ctx->script_header = s;
adamc@643	1212 }
adamc@643	1213
adamc@1094	1214 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1215 return ctx->app->url_prefix;
adamc@667	1216 }
adamc@667	1217
adamc@693	1218 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1219 ctx->needs_push = n;
adamc@693	1220 }
adamc@693	1221
adamc@736	1222 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1223 ctx->needs_sig = n;
adamc@736	1224 }
adamc@736	1225
adam@1936	1226 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936	1227 ctx->could_write_db = n;
adam@1936	1228 }
adam@1936	1229
adam@2056	1230 void uw_set_at_most_one_query(uw_context ctx, int n) {
adam@2056	1231 ctx->at_most_one_query = n;
adam@2056	1232 }
adam@2056	1233
adamc@667	1234
adam@1369	1235 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1236 if (b->back - b->front < extra) {
adamc@666	1237 size_t desired = b->front - b->start + extra, next;
adamc@136	1238 char *new_heap;
adamc@136	1239
adamc@666	1240 next = b->back - b->start;
adamc@317	1241 if (next == 0)
adamc@317	1242 next = 1;
adamc@317	1243 for (; next < desired; next *= 2);
adamc@136	1244
adamc@1134	1245 if (next > b->max) {
adamc@1113	1246 if (desired <= b->max)
adamc@1113	1247 next = desired;
adamc@1113	1248 else
adamc@1113	1249 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1250 }
adamc@1113	1251
adamc@666	1252 new_heap = realloc(b->start, next);
adamc@666	1253 b->front = new_heap + (b->front - b->start);
adamc@666	1254 b->back = new_heap + next;
adamc@136	1255
adamc@667	1256 if (new_heap != b->start) {
adamc@666	1257 b->start = new_heap;
adam@1389	1258 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1259 }
adamc@136	1260
adamc@666	1261 b->start = new_heap;
adamc@136	1262 }
adamc@136	1263 }
adamc@136	1264
adamc@832	1265 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1266 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1267 }
adamc@666	1268
adamc@832	1269 char *uw_heap_front(uw_context ctx) {
adamc@832	1270 return ctx->heap.front;
adamc@832	1271 }
adamc@832	1272
adamc@832	1273 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1274 ctx->heap.front = fr;
adamc@832	1275 }
adamc@832	1276
adam@1782	1277 void uw_begin_initializing(uw_context ctx) {
adam@1782	1278 ctx->amInitializing = 1;
adam@1782	1279 }
adam@1782	1280
adam@1782	1281 void uw_end_initializing(uw_context ctx) {
adam@1782	1282 ctx->amInitializing = 0;
adam@1782	1283 }
adam@1782	1284
adam@2013	1285 static void align_heap(uw_context ctx) {
adam@2013	1286 size_t posn = ctx->heap.front - ctx->heap.start;
adam@2013	1287
adam@2017	1288 if (posn % sizeof(void *) != 0) {
adam@2017	1289 size_t bump = sizeof(void ) - posn % sizeof(void );
adam@2013	1290 uw_check_heap(ctx, bump);
adam@2013	1291 ctx->heap.front += bump;
adam@2013	1292 }
adam@2013	1293 }
adam@2013	1294
adamc@311	1295 void *uw_malloc(uw_context ctx, size_t len) {
adam@2013	1296 // On some architectures, it's important that all word-sized memory accesses
adam@2013	1297 // be to word-aligned addresses, so we'll do a little bit of extra work here
adam@2013	1298 // in anticipation of a possible word-aligned access to the address we'll
adam@2013	1299 // return.
adam@2013	1300
adamc@136	1301 void *result;
adamc@136	1302
adam@1782	1303 if (ctx->amInitializing) {
adam@2017	1304 int error = posix_memalign(&result, sizeof(void *), len);
adam@2013	1305
adam@2013	1306 if (!error)
adam@1782	1307 return result;
adam@1782	1308 else
adam@2013	1309 uw_error(ctx, FATAL, "uw_malloc: posix_memalign() returns %d", error);
adam@1782	1310 } else {
adam@2013	1311 align_heap(ctx);
adam@2013	1312
adam@1782	1313 uw_check_heap(ctx, len);
adam@1782	1314
adam@1782	1315 result = ctx->heap.front;
adam@1782	1316 ctx->heap.front += len;
adam@1782	1317 return result;
adam@1782	1318 }
adamc@117	1319 }
adamc@117	1320
adamc@323	1321 void uw_begin_region(uw_context ctx) {
adam@2013	1322 align_heap(ctx);
adam@2013	1323
adamc@666	1324 regions r = (regions ) ctx->heap.front;
adamc@323	1325
adamc@323	1326 uw_check_heap(ctx, sizeof(regions));
adamc@323	1327
adamc@666	1328 ctx->heap.front += sizeof(regions);
adamc@323	1329
adamc@323	1330 r->next = ctx->regions;
adamc@323	1331 ctx->regions = r;
adamc@323	1332 }
adamc@323	1333
adamc@323	1334 void uw_end_region(uw_context ctx) {
adamc@323	1335 regions *r = ctx->regions;
adamc@323	1336
adamc@323	1337 if (r == NULL)
adamc@323	1338 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1339
adamc@666	1340 ctx->heap.front = (char *) r;
adamc@323	1341 ctx->regions = r->next;
adamc@323	1342 }
adamc@323	1343
adamc@324	1344 void uw_memstats(uw_context ctx) {
adam@1369	1345 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1346 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1347 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1348 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1349 }
adamc@324	1350
adam@1915	1351 int uw_pagelen(uw_context ctx) {
adam@1915	1352 return ctx->page.front - ctx->page.start;
adam@1915	1353 }
adam@1915	1354
adamc@311	1355 int uw_send(uw_context ctx, int sock) {
adam@1949	1356 size_t target_length = (ctx->outHeaders.front - ctx->outHeaders.start) + 2 + (ctx->page.front - ctx->page.start);
adam@1949	1357
adam@1949	1358 if (ctx->output_buffer_size < target_length) {
adam@1949	1359 do {
adam@1949	1360 ctx->output_buffer_size *= 2;
adam@1949	1361 } while (ctx->output_buffer_size < target_length);
adam@1949	1362 ctx->output_buffer = realloc(ctx->output_buffer, ctx->output_buffer_size);
adam@1949	1363 }
adam@1949	1364
adam@1949	1365 memcpy(ctx->output_buffer, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adam@1949	1366 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start), "\r\n", 2);
adam@1949	1367 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start) + 2, ctx->page.start, ctx->page.front - ctx->page.start);
adam@1949	1368
adam@1949	1369 return uw_really_send(sock, ctx->output_buffer, target_length);
adamc@462	1370 }
adamc@462	1371
adamc@856	1372 int uw_print(uw_context ctx, int fd) {
adamc@856	1373 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1374
adamc@856	1375 if (n < 0)
adamc@856	1376 return n;
adamc@856	1377
adamc@856	1378 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1379
adamc@856	1380 if (n < 0)
adamc@856	1381 return n;
adamc@856	1382
adamc@856	1383 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1384 }
adamc@856	1385
adamc@860	1386 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1387 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1388
adamc@860	1389 if (n < 0)
adamc@860	1390 return n;
adamc@860	1391
adamc@860	1392 n = output(data, "\r\n", 2);
adamc@860	1393
adamc@860	1394 if (n < 0)
adamc@860	1395 return n;
adamc@860	1396
adamc@860	1397 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1398 }
adamc@860	1399
adamc@462	1400 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1401 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1402 }
adamc@462	1403
adamc@462	1404 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1405 int len = strlen(s);
adamc@462	1406
adamc@462	1407 uw_check_headers(ctx, len + 1);
adamc@666	1408 strcpy(ctx->outHeaders.front, s);
adamc@666	1409 ctx->outHeaders.front += len;
adamc@562	1410 }
adamc@562	1411
adam@1934	1412 int uw_has_contentLength(uw_context ctx) {
adam@1934	1413 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934	1414 }
adam@1934	1415
adamc@1110	1416 void uw_clear_headers(uw_context ctx) {
adam@1369	1417 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1418 }
adamc@1110	1419
adam@1932	1420 void uw_Basis_clear_page(uw_context ctx) {
adam@1932	1421 uw_buffer_reset(&ctx->page);
adam@1932	1422 }
adam@1932	1423
adamc@562	1424 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1425 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1426 }
adamc@562	1427
adamc@562	1428 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1429 int len = strlen(s);
adamc@562	1430
adamc@562	1431 uw_check_script(ctx, len + 1);
adamc@666	1432 strcpy(ctx->script.front, s);
adamc@666	1433 ctx->script.front += len;
adamc@562	1434 }
adamc@562	1435
adam@1446	1436 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1437 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1438 uw_write_script(ctx, "sig=\"");
adam@1671	1439 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1440 uw_write_script(ctx, "\";");
adam@1671	1441 }
adam@1671	1442
adam@1446	1443 return ctx->script.start;
adam@1446	1444 }
adam@1446	1445
adamc@695	1446 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1447 if (s[0] == 0)
adamc@695	1448 return "";
adamc@695	1449 else {
adamc@695	1450 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1451 sprintf(r, " onload='%s'", s);
adamc@695	1452 return r;
adamc@695	1453 }
adamc@695	1454 }
adamc@695	1455
adamc@1042	1456 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1457 if (ctx->script_header[0] == 0)
adamc@1042	1458 return "";
adamc@1042	1459 else {
vshabanoff@1763	1460 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763	1461 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042	1462 return r;
adamc@1042	1463 }
adamc@1042	1464 }
adamc@1042	1465
adamc@694	1466 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1467 if (ctx->client == NULL) {
adamc@736	1468 if (ctx->needs_sig) {
adamc@1094	1469 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1470 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1471 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1472 return r;
adamc@736	1473 }
adamc@736	1474 else
adamc@736	1475 return "";
adamc@736	1476 } else {
adamc@1094	1477 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1478 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1479 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1480 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1481 (ctx->isPost ? "true" : "false"),
adamc@682	1482 ctx->client->id,
adamc@682	1483 ctx->client->pass,
adamc@1094	1484 ctx->app->url_prefix,
adamc@1094	1485 ctx->app->timeout,
adamc@736	1486 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1487 sig,
adamc@736	1488 ctx->needs_sig ? "\";" : "");
adamc@679	1489 return r;
adamc@668	1490 }
adamc@667	1491 }
adamc@667	1492
adamc@574	1493 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1494 char r, s2;
adamc@574	1495
adam@1446	1496 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1497
adamc@666	1498 r = s2 = ctx->heap.front;
adamc@574	1499 *s2++ = '"';
adamc@574	1500
adamc@574	1501 for (; *s; s++) {
adam@1286	1502 unsigned char c = *s;
adamc@574	1503
adamc@574	1504 switch (c) {
adamc@574	1505 case '"':
adamc@574	1506 strcpy(s2, "\\\"");
adamc@574	1507 s2 += 2;
adamc@574	1508 break;
adamc@1027	1509 case '\'':
adamc@1027	1510 strcpy(s2, "\\047");
adamc@1027	1511 s2 += 4;
adamc@1027	1512 break;
adamc@574	1513 case '\\':
adamc@574	1514 strcpy(s2, "\\\\");
adamc@574	1515 s2 += 2;
adamc@574	1516 break;
adam@1457	1517 case '<':
adam@1457	1518 strcpy(s2, "\\074");
adam@1457	1519 s2 += 4;
adam@1457	1520 break;
adamc@574	1521 default:
adam@1286	1522 if (isprint((int)c) \|\| c >= 128)
adamc@574	1523 *s2++ = c;
adamc@574	1524 else {
adam@1429	1525 sprintf(s2, "\\%03o", c);
adamc@574	1526 s2 += 4;
adamc@574	1527 }
adamc@574	1528 }
adamc@574	1529 }
adamc@574	1530
adamc@574	1531 strcpy(s2, "\"");
adamc@910	1532 ctx->heap.front = s2 + 2;
adamc@574	1533 return r;
adamc@574	1534 }
adamc@574	1535
adam@1286	1536 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1537 unsigned char c = c1;
adamc@1025	1538 char r, s2;
adamc@1025	1539
adam@1446	1540 uw_check_heap(ctx, 7);
adamc@1025	1541
adamc@1025	1542 r = s2 = ctx->heap.front;
adamc@1025	1543 *s2++ = '"';
adamc@1025	1544
adamc@1025	1545 switch (c) {
adamc@1025	1546 case '"':
adamc@1025	1547 strcpy(s2, "\\\"");
adamc@1025	1548 s2 += 2;
adamc@1025	1549 break;
adamc@1027	1550 case '\'':
adamc@1027	1551 strcpy(s2, "\\047");
adamc@1027	1552 s2 += 4;
adamc@1027	1553 break;
adamc@1025	1554 case '\\':
adamc@1025	1555 strcpy(s2, "\\\\");
adamc@1025	1556 s2 += 2;
adamc@1025	1557 break;
adam@1457	1558 case '<':
adam@1457	1559 strcpy(s2, "\\074");
adam@1457	1560 s2 += 4;
adam@1457	1561 break;
adamc@1025	1562 default:
adam@1286	1563 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1564 *s2++ = c;
adamc@1025	1565 else {
adam@1429	1566 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1567 s2 += 4;
adamc@1025	1568 }
adamc@1025	1569 }
adamc@1025	1570
adamc@1025	1571 strcpy(s2, "\"");
adamc@1025	1572 ctx->heap.front = s2 + 2;
adamc@1025	1573 return r;
adamc@1025	1574 }
adamc@1025	1575
adamc@574	1576 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1577 char r, s2;
adamc@574	1578
adam@1446	1579 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1580
adamc@666	1581 r = s2 = ctx->script.front;
adamc@574	1582 *s2++ = '"';
adamc@574	1583
adamc@574	1584 for (; *s; s++) {
adam@1286	1585 unsigned char c = *s;
adamc@574	1586
adamc@574	1587 switch (c) {
adamc@577	1588 case '\'':
adamc@1027	1589 strcpy(s2, "\\");
adamc@574	1590 s2 += 2;
adamc@574	1591 break;
adamc@574	1592 case '\\':
adamc@574	1593 strcpy(s2, "\\\\");
adamc@574	1594 s2 += 2;
adamc@574	1595 break;
adam@1457	1596 case '<':
adam@1457	1597 strcpy(s2, "\\074");
adam@1457	1598 s2 += 4;
adam@1457	1599 break;
adamc@574	1600 default:
adam@1286	1601 if (isprint((int)c) \|\| c >= 128)
adamc@574	1602 *s2++ = c;
adamc@574	1603 else {
adam@1429	1604 sprintf(s2, "\\%03o", c);
adamc@574	1605 s2 += 4;
adamc@574	1606 }
adamc@574	1607 }
adamc@574	1608 }
adamc@574	1609
adamc@574	1610 strcpy(s2, "\"");
adamc@666	1611 ctx->script.front = s2 + 1;
adamc@574	1612 return r;
adamc@574	1613 }
adamc@574	1614
adamc@682	1615 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1616 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1617 return "null";
adamc@682	1618 else {
adamc@682	1619 int len;
adamc@682	1620 char *r;
adamc@682	1621
adamc@682	1622 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1623 r = ctx->heap.front;
adamc@682	1624 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1625 ctx->heap.front += len+1;
adamc@682	1626 return r;
adamc@682	1627 }
adamc@682	1628 }
adamc@682	1629
adam@1446	1630 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1631 int len;
adamc@577	1632 size_t s_len = strlen(s);
adamc@562	1633
grrwlf@1998	1634 if(ctx->id < 0)
grrwlf@1998	1635 uw_error(ctx, FATAL, "Attempt to create client source using inappropriate context");
grrwlf@1998	1636
adam@1446	1637 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1638 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1639 ctx->script.front += len;
adamc@666	1640 strcpy(ctx->script.front, s);
adamc@666	1641 ctx->script.front += s_len;
adamc@970	1642 strcpy(ctx->script.front, "));");
adamc@972	1643 ctx->script.front += 3;
adamc@562	1644
adam@1446	1645 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1646 return r;
adam@1446	1647 }
adam@1446	1648
adam@1446	1649 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1650 int len;
adamc@577	1651 size_t s_len = strlen(s);
adamc@577	1652
adam@1446	1653 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1654 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1655 ctx->script.front += len;
adamc@666	1656 strcpy(ctx->script.front, s);
adamc@666	1657 ctx->script.front += s_len;
adamc@970	1658 strcpy(ctx->script.front, "));");
adamc@972	1659 ctx->script.front += 3;
adamc@577	1660
adamc@577	1661 return uw_unit_v;
adamc@577	1662 }
adamc@577	1663
adamc@311	1664 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1665 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1666 }
adamc@117	1667
adamc@311	1668 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1669 *(ctx->page.front)++ = c;
adam@1413	1670 *ctx->page.front = 0;
adamc@117	1671 }
adamc@117	1672
adamc@311	1673 void uw_writec(uw_context ctx, char c) {
adam@1413	1674 uw_check(ctx, 2);
adamc@311	1675 uw_writec_unsafe(ctx, c);
adamc@117	1676 }
adamc@117	1677
adam@2085	1678 void uw_Basis_writec(uw_context ctx, char c) {
adam@2085	1679 uw_writec(ctx, c);
adam@2085	1680 }
adam@2085	1681
adamc@311	1682 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1683 int len = strlen(s);
adamc@666	1684 memcpy(ctx->page.front, s, len);
adamc@666	1685 ctx->page.front += len;
adamc@117	1686 }
adamc@117	1687
adamc@311	1688 void uw_write(uw_context ctx, const char* s) {
adamc@311	1689 uw_check(ctx, strlen(s) + 1);
adamc@311	1690 uw_write_unsafe(ctx, s);
adamc@666	1691 *ctx->page.front = 0;
adamc@102	1692 }
adamc@106	1693
ziv@2204	1694 void uw_recordingStart(uw_context ctx) {
ziv@2204	1695 ctx->recording = ctx->page.front;
ziv@2204	1696 }
ziv@2204	1697
ziv@2204	1698 char *uw_recordingRead(uw_context ctx) {
ziv@2209	1699 return strdup(ctx->recording);
ziv@2204	1700 }
ziv@2204	1701
adamc@311	1702 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1703 char *result;
adamc@136	1704 int len;
adamc@311	1705 uw_check_heap(ctx, INTS_MAX);
adamc@666	1706 result = ctx->heap.front;
adamc@276	1707 sprintf(result, "%lld%n", n, &len);
adamc@666	1708 ctx->heap.front += len+1;
adamc@136	1709 return result;
adamc@106	1710 }
adamc@106	1711
adamc@311	1712 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1713 char *result;
adamc@136	1714 int len;
adamc@311	1715 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1716 result = ctx->heap.front;
adam@1920	1717 sprintf(result, "%.16g%n", n, &len);
adamc@666	1718 ctx->heap.front += len+1;
adamc@136	1719 return result;
adamc@106	1720 }
adamc@106	1721
adamc@311	1722 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1723 int len = strlen(s);
adamc@136	1724 char result, p;
adamc@311	1725 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1726
adamc@666	1727 result = p = ctx->heap.front;
adamc@136	1728
adamc@136	1729 for (; *s; s++) {
adamc@1054	1730 unsigned char c = *s;
adamc@136	1731
adamc@136	1732 if (c == '"') {
adamc@136	1733 strcpy(p, """);
adamc@136	1734 p += 6;
adamc@136	1735 } else if (c == '&') {
adamc@136	1736 strcpy(p, "&");
adamc@136	1737 p += 5;
adamc@136	1738 }
adamc@1059	1739 else
adamc@136	1740 *p++ = c;
adamc@136	1741 }
adamc@136	1742
adamc@137	1743 *p++ = 0;
adamc@666	1744 ctx->heap.front = p;
adamc@136	1745 return result;
adamc@106	1746 }
adamc@106	1747
adamc@1011	1748 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1749 char result, p;
adamc@1011	1750 uw_check_heap(ctx, 7);
adamc@1011	1751
adamc@1011	1752 result = p = ctx->heap.front;
adamc@1011	1753
adamc@1011	1754 if (c == '"') {
adamc@1011	1755 strcpy(p, """);
adamc@1011	1756 p += 6;
adamc@1011	1757 } else if (c == '&') {
adamc@1011	1758 strcpy(p, "&");
adamc@1011	1759 p += 5;
adamc@1011	1760 }
adamc@1059	1761 else
adamc@1011	1762 *p++ = c;
adamc@1011	1763
adamc@1011	1764 *p++ = 0;
adamc@1011	1765 ctx->heap.front = p;
adamc@1011	1766 return result;
adamc@1011	1767 }
adamc@1011	1768
adamc@721	1769 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1770 return s;
adamc@721	1771 }
adamc@721	1772
adamc@311	1773 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1774 int len;
adamc@117	1775
adamc@666	1776 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1777 ctx->page.front += len;
adamc@106	1778 }
adamc@106	1779
adamc@428	1780 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1781 uw_check(ctx, INTS_MAX);
adamc@311	1782 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1783
adamc@428	1784 return uw_unit_v;
adamc@106	1785 }
adamc@106	1786
adamc@428	1787 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1788 int len;
adamc@117	1789
adamc@311	1790 uw_check(ctx, FLOATS_MAX);
adamc@666	1791 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1792 ctx->page.front += len;
adamc@428	1793
adamc@428	1794 return uw_unit_v;
adamc@117	1795 }
adamc@117	1796
adamc@428	1797 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1798 uw_check(ctx, strlen(s) * 6);
adamc@117	1799
adamc@106	1800 for (; *s; s++) {
adamc@1054	1801 unsigned char c = *s;
adamc@106	1802
adamc@106	1803 if (c == '"')
adamc@311	1804 uw_write_unsafe(ctx, """);
adamc@136	1805 else if (c == '&')
adamc@311	1806 uw_write_unsafe(ctx, "&");
adamc@1059	1807 else
adamc@311	1808 uw_writec_unsafe(ctx, c);
adamc@106	1809 }
adamc@428	1810
adamc@428	1811 return uw_unit_v;
adamc@106	1812 }
adamc@120	1813
adamc@1011	1814 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1815 uw_check(ctx, 6);
adamc@1011	1816
adamc@1011	1817 if (c == '"')
adamc@1011	1818 uw_write_unsafe(ctx, """);
adamc@1011	1819 else if (c == '&')
adamc@1011	1820 uw_write_unsafe(ctx, "&");
adamc@1059	1821 else
adamc@1011	1822 uw_writec_unsafe(ctx, c);
adamc@1011	1823
adamc@1011	1824 return uw_unit_v;
adamc@1011	1825 }
adamc@1011	1826
adamc@120	1827
adamc@311	1828 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1829 int len;
adamc@137	1830 char *r;
adamc@137	1831
adamc@311	1832 uw_check_heap(ctx, INTS_MAX);
adamc@666	1833 r = ctx->heap.front;
adamc@276	1834 sprintf(r, "%lld%n", n, &len);
adamc@666	1835 ctx->heap.front += len+1;
adamc@137	1836 return r;
adamc@120	1837 }
adamc@120	1838
adamc@682	1839 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1840 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1841 return "";
adamc@682	1842 else {
adamc@682	1843 int len;
adamc@682	1844 char *r;
adamc@679	1845
adamc@682	1846 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1847 r = ctx->heap.front;
adamc@682	1848 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1849 ctx->heap.front += len+1;
adamc@682	1850 return r;
adamc@682	1851 }
adamc@679	1852 }
adamc@679	1853
adamc@311	1854 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1855 int len;
adamc@137	1856 char *r;
adamc@137	1857
adamc@311	1858 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1859 r = ctx->heap.front;
adamc@137	1860 sprintf(r, "%g%n", n, &len);
adamc@666	1861 ctx->heap.front += len+1;
adamc@137	1862 return r;
adamc@120	1863 }
adamc@120	1864
adamc@311	1865 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1866 char r, p;
adamc@137	1867
adamc@925	1868 if (s[0] == '\0')
adamc@925	1869 return "_";
adamc@925	1870
adamc@925	1871 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1872
adamc@925	1873 r = p = ctx->heap.front;
adamc@925	1874 if (s[0] == '_')
adamc@925	1875 *p++ = '_';
adamc@925	1876
adamc@925	1877 for (; *s; s++) {
adamc@1087	1878 unsigned char c = *s;
adamc@137	1879
adamc@137	1880 if (c == ' ')
adamc@137	1881 *p++ = '+';
adamc@137	1882 else if (isalnum(c))
adamc@137	1883 *p++ = c;
adamc@137	1884 else {
adamc@1259	1885 sprintf(p, ".%02X", c);
adamc@137	1886 p += 3;
adamc@137	1887 }
adamc@137	1888 }
adamc@137	1889
adamc@137	1890 *p++ = 0;
adamc@666	1891 ctx->heap.front = p;
adamc@137	1892 return r;
adamc@120	1893 }
adamc@120	1894
adamc@311	1895 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1896 if (b == uw_Basis_False)
adamc@186	1897 return "0";
adamc@186	1898 else
adamc@186	1899 return "1";
adamc@186	1900 }
adamc@186	1901
adam@1620	1902 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1903 char *r;
adam@1620	1904 int len;
adam@1620	1905 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1906 r = ctx->heap.front;
adam@1620	1907 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1908 ctx->heap.front += len+1;
adam@1620	1909 return r;
adam@1620	1910 }
adam@1620	1911
adamc@311	1912 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1913 int len;
adamc@120	1914
adamc@666	1915 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1916 ctx->page.front += len;
adamc@120	1917 }
adamc@120	1918
adamc@428	1919 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1920 uw_check(ctx, INTS_MAX);
adamc@311	1921 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1922
adamc@428	1923 return uw_unit_v;
adamc@120	1924 }
adamc@120	1925
adamc@682	1926 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1927 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1928 int len;
phurst@1981	1929
adamc@682	1930 uw_check(ctx, INTS_MAX + 1);
adamc@682	1931 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1932 ctx->page.front += len;
adamc@682	1933 }
phurst@1981	1934
adamc@679	1935 return uw_unit_v;
adamc@679	1936 }
adamc@679	1937
adamc@428	1938 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1939 int len;
adamc@120	1940
adamc@311	1941 uw_check(ctx, FLOATS_MAX);
adamc@666	1942 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1943 ctx->page.front += len;
adamc@428	1944
adamc@428	1945 return uw_unit_v;
adamc@120	1946 }
adamc@120	1947
adamc@488	1948 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1949 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1950 }
adamc@488	1951
adam@1404	1952 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1953 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1954 }
adam@1404	1955
adamc@428	1956 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1957 if (s[0] == '\0') {
adamc@925	1958 uw_check(ctx, 1);
adamc@925	1959 uw_writec_unsafe(ctx, '_');
adamc@925	1960 return uw_unit_v;
adamc@925	1961 }
adamc@925	1962
adamc@925	1963 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1964
adamc@925	1965 if (s[0] == '_')
adamc@925	1966 uw_writec_unsafe(ctx, '_');
adamc@120	1967
adamc@120	1968 for (; *s; s++) {
adamc@1087	1969 unsigned char c = *s;
adamc@120	1970
adamc@120	1971 if (c == ' ')
adamc@311	1972 uw_writec_unsafe(ctx, '+');
adamc@120	1973 else if (isalnum(c))
adamc@311	1974 uw_writec_unsafe(ctx, c);
adamc@120	1975 else {
adamc@1259	1976 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1977 ctx->page.front += 3;
adamc@120	1978 }
adamc@120	1979 }
adamc@428	1980
adamc@428	1981 return uw_unit_v;
adamc@120	1982 }
adamc@120	1983
adamc@428	1984 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1985 if (b == uw_Basis_False)
adamc@311	1986 uw_writec(ctx, '0');
adamc@186	1987 else
adamc@311	1988 uw_writec(ctx, '1');
adamc@428	1989
adamc@428	1990 return uw_unit_v;
adamc@186	1991 }
adamc@186	1992
adam@1620	1993 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	1994 int len;
phurst@1981	1995
adam@1620	1996 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	1997 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1998 ctx->page.front += len;
phurst@1981	1999
adam@1620	2000 return uw_unit_v;
adam@1620	2001 }
adam@1620	2002
adamc@120	2003
adamc@311	2004 static char uw_unurlify_advance(char s) {
adamc@144	2005 char *new_s = strchr(s, '/');
adamc@120	2006
adamc@120	2007 if (new_s)
adamc@120	2008 *new_s++ = 0;
adamc@120	2009 else
adamc@144	2010 new_s = strchr(s, 0);
adamc@144	2011
adamc@144	2012 return new_s;
adamc@144	2013 }
adamc@144	2014
adamc@311	2015 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	2016 char new_s = uw_unurlify_advance(s);
adamc@311	2017 uw_Basis_int r;
adamc@120	2018
adamc@276	2019 r = atoll(*s);
adamc@120	2020 *s = new_s;
adamc@120	2021 return r;
adamc@120	2022 }
adamc@120	2023
adamc@311	2024 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	2025 char new_s = uw_unurlify_advance(s);
adamc@311	2026 uw_Basis_float r;
adamc@120	2027
adamc@120	2028 r = atof(*s);
adamc@120	2029 *s = new_s;
adamc@120	2030 return r;
adamc@120	2031 }
adamc@120	2032
adamc@488	2033 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	2034 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	2035 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	2036 return r;
adamc@488	2037 }
adamc@488	2038
adamc@1023	2039 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	2040 char s1, s2 = s;
adamc@144	2041 int n;
adamc@136	2042
adamc@1023	2043 if (!fromClient) {
adamc@1023	2044 if (*s2 == '_')
adamc@1023	2045 ++s2;
adamc@1259	2046 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	2047 s2 += 3;
adamc@1023	2048 }
adamc@925	2049
adamc@927	2050 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	2051 unsigned char c = *s2;
adamc@136	2052
adamc@136	2053 switch (c) {
adamc@136	2054 case '+':
adamc@136	2055 *s1 = ' ';
adamc@136	2056 break;
adamc@136	2057 case '%':
adamc@169	2058 if (s2[1] == 0)
adamc@311	2059 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	2060 if (s2[2] == 0)
adamc@311	2061 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	2062 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2063 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	2064 *s1 = n;
adamc@136	2065 s2 += 2;
adamc@136	2066 break;
adamc@1259	2067 case '.':
adamc@1259	2068 if (!fromClient) {
adamc@1259	2069 if (s2[1] == 0)
adamc@1259	2070 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	2071 if (s2[2] == 0)
adamc@1259	2072 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	2073 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2074 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	2075 *s1 = n;
adamc@1259	2076 s2 += 2;
adamc@1259	2077 break;
adamc@1259	2078 }
adamc@136	2079 default:
adamc@136	2080 *s1 = c;
adamc@136	2081 }
adamc@136	2082 }
adamc@136	2083 *s1++ = 0;
adamc@144	2084 return s1;
adamc@144	2085 }
adamc@144	2086
adamc@311	2087 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	2088 char new_s = uw_unurlify_advance(s);
adamc@311	2089 uw_Basis_bool r;
phurst@1981	2090
adamc@186	2091 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2092 r = uw_Basis_False;
adamc@186	2093 else
adamc@311	2094 r = uw_Basis_True;
adamc@186	2095
adamc@186	2096 *s = new_s;
adamc@186	2097 return r;
adamc@186	2098 }
adamc@186	2099
adamc@311	2100 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2101 char new_s = uw_unurlify_advance(s);
adamc@1134	2102 char *r;
adamc@1134	2103 int len;
adamc@144	2104
adamc@200	2105 len = strlen(*s);
adamc@311	2106 uw_check_heap(ctx, len + 1);
adamc@144	2107
adamc@666	2108 r = ctx->heap.front;
adamc@1023	2109 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2110 *s = new_s;
adamc@1023	2111 return r;
adamc@1023	2112 }
adamc@1023	2113
adamc@1109	2114 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2115 s = uw_unurlify_advance(s);
adamc@1109	2116 return uw_unit_v;
adamc@1109	2117 }
adamc@1109	2118
adamc@1023	2119 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2120 char new_s = uw_unurlify_advance(s);
adamc@1134	2121 char *r;
adamc@1134	2122 int len;
adamc@1023	2123
adamc@1023	2124 len = strlen(*s);
adamc@1023	2125 uw_check_heap(ctx, len + 1);
adamc@1023	2126
adamc@1023	2127 r = ctx->heap.front;
adamc@1023	2128 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2129 *s = new_s;
adamc@136	2130 return r;
adamc@120	2131 }
adamc@135	2132
adamc@135	2133
adamc@311	2134 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2135 int len;
adamc@286	2136 char *r;
adamc@286	2137
adamc@311	2138 uw_check_heap(ctx, INTS_MAX);
adamc@666	2139 r = ctx->heap.front;
adamc@286	2140 sprintf(r, "%lld%n", n, &len);
adamc@666	2141 ctx->heap.front += len+1;
adamc@286	2142 return r;
adamc@286	2143 }
adamc@286	2144
adamc@428	2145 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2146 int len;
adamc@286	2147
adamc@311	2148 uw_check(ctx, INTS_MAX);
adamc@666	2149 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2150 ctx->page.front += len;
phurst@1981	2151
adamc@428	2152 return uw_unit_v;
adamc@286	2153 }
adamc@286	2154
adam@1358	2155 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2156 unsigned int n = ch;
adam@1358	2157 int len;
adam@1358	2158 char *r;
adam@1358	2159
adam@1358	2160 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2161 r = ctx->heap.front;
adam@1358	2162 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2163 ctx->heap.front += len+1;
adam@1358	2164 return r;
adam@1358	2165 }
adam@1358	2166
adam@1358	2167 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2168 unsigned int n = ch;
adam@1358	2169 int len;
adam@1358	2170
adam@1358	2171 uw_check(ctx, INTS_MAX+3);
adam@1358	2172 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2173 ctx->page.front += len;
adam@1358	2174 return uw_unit_v;
adam@1358	2175 }
adam@1358	2176
adamc@311	2177 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2178 int len;
adamc@286	2179 char *r;
adamc@286	2180
adamc@311	2181 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2182 r = ctx->heap.front;
adamc@286	2183 sprintf(r, "%g%n", n, &len);
adamc@666	2184 ctx->heap.front += len+1;
adamc@286	2185 return r;
adamc@286	2186 }
adamc@286	2187
adamc@428	2188 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2189 int len;
adamc@286	2190
adamc@311	2191 uw_check(ctx, FLOATS_MAX);
adamc@666	2192 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2193 ctx->page.front += len;
adamc@428	2194
adamc@428	2195 return uw_unit_v;
adamc@286	2196 }
adamc@286	2197
adam@1365	2198 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2199 int len;
adam@1360	2200 char *r;
adam@1360	2201
adam@1360	2202 uw_check_heap(ctx, INTS_MAX);
adam@1360	2203 r = ctx->heap.front;
adamc@1377	2204 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2205 ctx->heap.front += len+1;
adam@1360	2206 return r;
adam@1360	2207 }
adam@1360	2208
adam@1365	2209 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2210 int len;
adam@1360	2211
adam@1360	2212 uw_check(ctx, INTS_MAX);
adam@1360	2213 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2214 ctx->page.front += len;
phurst@1981	2215
adam@1360	2216 return uw_unit_v;
adam@1360	2217 }
adam@1360	2218
adam@1444	2219 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2220 char r, s2;
adamc@137	2221
adamc@311	2222 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2223
adamc@666	2224 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2225 unsigned char c = *s;
adamc@137	2226
adamc@137	2227 switch (c) {
adamc@137	2228 case '<':
adamc@137	2229 strcpy(s2, "<");
adamc@137	2230 s2 += 4;
adamc@137	2231 break;
adamc@137	2232 case '&':
adamc@137	2233 strcpy(s2, "&");
adamc@137	2234 s2 += 5;
adamc@137	2235 break;
adamc@137	2236 default:
adamc@1059	2237 *s2++ = c;
adamc@137	2238 }
adamc@137	2239 }
adamc@137	2240
adamc@137	2241 *s2++ = 0;
adamc@666	2242 ctx->heap.front = s2;
adamc@137	2243 return r;
adamc@135	2244 }
adamc@135	2245
adamc@428	2246 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2247 uw_check(ctx, strlen(s) * 6);
adamc@135	2248
adamc@135	2249 for (; *s; s++) {
adamc@1054	2250 unsigned char c = *s;
adamc@135	2251
adamc@135	2252 switch (c) {
adamc@135	2253 case '<':
adamc@311	2254 uw_write_unsafe(ctx, "<");
adamc@135	2255 break;
adamc@135	2256 case '&':
adamc@311	2257 uw_write_unsafe(ctx, "&");
adamc@135	2258 break;
adamc@135	2259 default:
adamc@1059	2260 uw_writec_unsafe(ctx, c);
adamc@135	2261 }
adamc@135	2262 }
adamc@428	2263
adamc@428	2264 return uw_unit_v;
adamc@135	2265 }
adamc@180	2266
adamc@311	2267 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2268 if (b == uw_Basis_False)
adamc@286	2269 return "False";
adamc@286	2270 else
adamc@286	2271 return "True";
adamc@286	2272 }
adamc@286	2273
adamc@428	2274 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2275 if (b == uw_Basis_False) {
adamc@311	2276 uw_check(ctx, 6);
adamc@666	2277 strcpy(ctx->page.front, "False");
adamc@666	2278 ctx->page.front += 5;
adamc@286	2279 } else {
adamc@311	2280 uw_check(ctx, 5);
adamc@666	2281 strcpy(ctx->page.front, "True");
adamc@666	2282 ctx->page.front += 4;
adamc@286	2283 }
adamc@428	2284
adamc@428	2285 return uw_unit_v;
adamc@286	2286 }
adamc@286	2287
adamc@436	2288 #define TIME_FMT "%x %X"
adamc@438	2289 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2290 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2291
adam@1629	2292 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2293
adamc@436	2294 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2295 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2296 }
adamc@436	2297
adamc@436	2298 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2299 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2300 }
adamc@436	2301
adam@1446	2302 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2303 int len;
adam@1446	2304 char *r;
adam@1446	2305
adam@1446	2306 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2307 r = ctx->heap.front;
adam@1446	2308 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2309 ctx->heap.front += len+1;
adam@1446	2310 return r;
adam@1446	2311 }
adam@1446	2312
adam@1446	2313 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2314 int len;
adam@1446	2315
adam@1446	2316 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2317 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2318 ctx->page.front += len;
phurst@1981	2319
adam@1446	2320 return uw_unit_v;
adam@1446	2321 }
adam@1446	2322
adamc@821	2323 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2324 while (n >= 0) {
adam@1388	2325 if (*s == 0)
adam@1388	2326 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2327
adam@1388	2328 if (n == 0)
adam@1388	2329 return *s;
adam@1388	2330
adam@1388	2331 --n;
adam@1388	2332 ++s;
adam@1388	2333 }
adam@1388	2334
adam@1388	2335 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2336 }
adamc@821	2337
adamc@821	2338 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2339 while (n >= 0) {
adam@1388	2340 if (*s == 0 \|\| n == 0)
adam@1388	2341 return s;
adam@1388	2342
adam@1388	2343 --n;
adam@1388	2344 ++s;
adam@1388	2345 }
adam@1388	2346
adam@1388	2347 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2348 }
adamc@821	2349
adamc@828	2350 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2351 return strlen(s);
adamc@828	2352 }
adamc@828	2353
adam@1388	2354 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2355 while (n > 0) {
adam@1388	2356 if (*s == 0)
adam@1388	2357 return uw_Basis_False;
adam@1388	2358
adam@1388	2359 --n;
adam@1388	2360 ++s;
adam@1388	2361 }
adam@1388	2362
adam@1388	2363 return uw_Basis_True;
adam@1388	2364 }
adam@1388	2365
adamc@829	2366 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2367 return strchr(s, ch);
adamc@829	2368 }
adamc@829	2369
adamc@831	2370 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2371 return strcspn(s, chs);
adamc@831	2372 }
adamc@831	2373
adamc@829	2374 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2375 uw_Basis_string r = strchr(s, ch);
adamc@829	2376 if (r == NULL)
adamc@829	2377 return NULL;
adamc@829	2378 else {
adamc@829	2379 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2380 *nr = r - s;
adamc@829	2381 return nr;
adamc@829	2382 }
adamc@829	2383 }
adamc@829	2384
adam@1390	2385 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2386 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2387 if (r == NULL)
adam@1390	2388 return NULL;
adam@1390	2389 else {
adam@1390	2390 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2391 *nr = r - haystack;
adam@1390	2392 return nr;
adam@1390	2393 }
adam@1390	2394 }
adam@1390	2395
adamc@311	2396 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2397 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2398 char *s;
adamc@180	2399
adamc@311	2400 uw_check_heap(ctx, len);
adamc@180	2401
adamc@666	2402 s = ctx->heap.front;
adamc@180	2403
adamc@180	2404 strcpy(s, s1);
adamc@180	2405 strcat(s, s2);
adamc@666	2406 ctx->heap.front += len;
adamc@180	2407
adamc@180	2408 return s;
adamc@180	2409 }
adamc@278	2410
adamc@829	2411 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2412 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2413
adamc@829	2414 if (start < 0)
adamc@829	2415 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2416 if (len < 0)
adamc@829	2417 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2418 if (start + len > full_len)
adamc@829	2419 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2420
adamc@829	2421 if (start + len == full_len)
adamc@829	2422 return &s[start];
adamc@829	2423 else {
adamc@829	2424 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2425 memcpy(r, s+start, len);
adamc@829	2426 r[len] = 0;
adamc@829	2427 return r;
adamc@829	2428 }
phurst@1981	2429
adamc@829	2430 }
adamc@829	2431
adamc@1023	2432 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2433 char *r;
adamc@1023	2434
adamc@1023	2435 uw_check_heap(ctx, 2);
adamc@1023	2436 r = ctx->heap.front;
adamc@1023	2437 r[0] = ch;
adamc@1023	2438 r[1] = 0;
adamc@1023	2439
adamc@1023	2440 ctx->heap.front += 2;
adamc@1023	2441
adamc@1023	2442 return r;
adamc@1023	2443 }
adamc@1023	2444
adamc@737	2445 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2446 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2447 char *s;
adamc@278	2448
adamc@311	2449 uw_check_heap(ctx, len);
adamc@278	2450
adamc@666	2451 s = ctx->heap.front;
adamc@278	2452
adamc@278	2453 strcpy(s, s1);
adamc@666	2454 ctx->heap.front += len;
adamc@278	2455
adamc@278	2456 return s;
adamc@278	2457 }
adamc@280	2458
adam@1295	2459 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2460 if (ctx->error_message[0]) {
adam@1295	2461 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2462 ctx->error_message[0] = 0;
adam@1295	2463 return s;
adam@1295	2464 } else
adam@1295	2465 return NULL;
adam@1295	2466 }
adam@1295	2467
adamc@737	2468 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2469 if (s1)
adamc@737	2470 return uw_strdup(ctx, s1);
adamc@493	2471 else
adamc@493	2472 return NULL;
adamc@493	2473 }
adamc@493	2474
adamc@742	2475 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2476 char *r = uw_malloc(ctx, len);
adamc@742	2477 memcpy(r, p, len);
adamc@742	2478 return r;
adamc@742	2479 }
adamc@280	2480
adamc@879	2481 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2482
adamc@311	2483 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2484 int len;
adamc@281	2485 char *r;
adamc@281	2486
adamc@311	2487 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2488 r = ctx->heap.front;
adamc@879	2489 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2490 ctx->heap.front += len+1;
adamc@281	2491 return r;
adamc@281	2492 }
adamc@281	2493
adamc@467	2494 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2495 if (n == NULL)
adamc@467	2496 return "NULL";
adamc@467	2497 else
adamc@467	2498 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2499 }
adamc@467	2500
adam@1920	2501 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879	2502
adamc@311	2503 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2504 int len;
adamc@281	2505 char *r;
adamc@281	2506
adamc@311	2507 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2508 r = ctx->heap.front;
adamc@879	2509 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2510 ctx->heap.front += len+1;
adamc@281	2511 return r;
adamc@281	2512 }
adamc@281	2513
adamc@467	2514 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2515 if (n == NULL)
adamc@467	2516 return "NULL";
adamc@467	2517 else
adamc@467	2518 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2519 }
adamc@467	2520
adam@1834	2521 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2522 char *uw_sqlsuffixString = "::text";
adamc@1011	2523 char *uw_sqlsuffixChar = "::char";
adamc@281	2524
adamc@311	2525 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2526 char r, s2;
adamc@280	2527
adamc@879	2528 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2529
adamc@666	2530 r = s2 = ctx->heap.front;
adamc@879	2531 if (uw_Estrings)
adamc@879	2532 *s2++ = 'E';
adamc@280	2533 *s2++ = '\'';
adamc@280	2534
adamc@280	2535 for (; *s; s++) {
adamc@280	2536 char c = *s;
adamc@280	2537
adamc@280	2538 switch (c) {
adamc@280	2539 case '\'':
adamc@885	2540 if (uw_Estrings)
adamc@885	2541 strcpy(s2, "\\'");
adamc@885	2542 else
adamc@885	2543 strcpy(s2, "''");
adamc@280	2544 s2 += 2;
adamc@280	2545 break;
adamc@280	2546 case '\\':
adamc@885	2547 if (uw_Estrings) {
adamc@885	2548 strcpy(s2, "\\\\");
adamc@885	2549 s2 += 2;
adamc@885	2550 } else
adamc@885	2551 *s2++ = '\\';
adamc@280	2552 break;
adamc@280	2553 default:
adamc@1150	2554 if (isprint((int)c))
adamc@280	2555 *s2++ = c;
adamc@879	2556 else if (uw_Estrings) {
adam@1857	2557 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2558 s2 += 4;
adamc@280	2559 }
adamc@879	2560 else
adam@1689	2561 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2562 }
adamc@280	2563 }
adamc@280	2564
adamc@879	2565 *s2++ = '\'';
adamc@879	2566 strcpy(s2, uw_sqlsuffixString);
adamc@879	2567 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2568 return r;
adamc@280	2569 }
adamc@281	2570
adamc@1011	2571 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2572 char r, s2;
adamc@1011	2573
adamc@1011	2574 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2575
adamc@1011	2576 r = s2 = ctx->heap.front;
adamc@1011	2577 if (uw_Estrings)
adamc@1011	2578 *s2++ = 'E';
adamc@1011	2579 *s2++ = '\'';
adamc@1011	2580
adamc@1011	2581 switch (c) {
adamc@1011	2582 case '\'':
adamc@1011	2583 if (uw_Estrings)
adamc@1011	2584 strcpy(s2, "\\'");
adamc@1011	2585 else
adamc@1011	2586 strcpy(s2, "''");
adamc@1011	2587 s2 += 2;
adamc@1011	2588 break;
adamc@1011	2589 case '\\':
adamc@1011	2590 if (uw_Estrings) {
adamc@1011	2591 strcpy(s2, "\\\\");
adamc@1011	2592 s2 += 2;
adamc@1011	2593 } else
adamc@1011	2594 *s2++ = '\\';
adamc@1011	2595 break;
adamc@1011	2596 default:
adamc@1150	2597 if (isprint((int)c))
adamc@1011	2598 *s2++ = c;
adamc@1011	2599 else if (uw_Estrings) {
adam@1857	2600 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2601 s2 += 4;
adamc@1011	2602 }
adamc@1011	2603 else
adamc@1011	2604 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2605 }
adamc@1011	2606
adamc@1011	2607 *s2++ = '\'';
adamc@1011	2608 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2609 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2610 return r;
adamc@1011	2611 }
adamc@1011	2612
adamc@879	2613 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2614
adam@1867	2615 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2616 char r, s2;
adamc@737	2617 size_t i;
adamc@737	2618
adam@1867	2619 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2620
adamc@737	2621 r = s2 = ctx->heap.front;
adamc@879	2622 if (uw_Estrings)
adamc@879	2623 *s2++ = 'E';
adam@1867	2624 else
adam@1867	2625 *s2++ = 'X';
adamc@737	2626 *s2++ = '\'';
adamc@737	2627
adamc@737	2628 for (i = 0; i < b.size; ++i) {
adam@1867	2629 unsigned char c = b.data[i];
adam@1867	2630
adam@1867	2631 if (uw_Estrings) {
adam@1867	2632 switch (c) {
adam@1867	2633 case '\'':
adamc@885	2634 strcpy(s2, "\\'");
adam@1867	2635 s2 += 2;
adam@1867	2636 break;
adam@1867	2637 case '\\':
adamc@885	2638 strcpy(s2, "\\\\\\\\");
adamc@885	2639 s2 += 4;
adam@1867	2640 break;
adam@1867	2641 default:
adam@1867	2642 if (isprint((int)c))
adam@1867	2643 *s2++ = c;
adam@1867	2644 else {
adam@1867	2645 sprintf(s2, "\\\\%03o", c);
adam@1867	2646 s2 += 5;
adam@1867	2647 }
adamc@737	2648 }
adam@1867	2649 } else {
adam@1867	2650 sprintf(s2, "%02X", c);
adam@1867	2651 s2 += 2;
adamc@737	2652 }
phurst@1981	2653 }
adamc@737	2654
adamc@879	2655 *s2++ = '\'';
adamc@879	2656 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2657 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2658 return r;
adamc@737	2659 }
adamc@737	2660
adamc@682	2661 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2662 int len;
adamc@682	2663 char *r;
adamc@682	2664 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2665
adamc@682	2666 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2667 r = ctx->heap.front;
adamc@879	2668 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2669 ctx->heap.front += len+1;
adamc@682	2670 return r;
adamc@682	2671 }
adamc@682	2672
adamc@682	2673 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2674 int len;
adamc@682	2675 char *r;
adamc@682	2676 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2677
adamc@682	2678 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2679 r = ctx->heap.front;
adamc@682	2680 sprintf(r, "%lld%n", combo, &len);
adamc@682	2681 ctx->heap.front += len+1;
adamc@682	2682 return r;
adamc@682	2683 }
adamc@682	2684
adamc@879	2685 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2686
adamc@682	2687 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2688 int len;
adamc@682	2689 char *r;
adamc@682	2690
adamc@682	2691 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2692 r = ctx->heap.front;
adamc@879	2693 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2694 ctx->heap.front += len+1;
adamc@682	2695 return r;
adamc@682	2696 }
adamc@682	2697
adamc@682	2698 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2699 int len;
adamc@682	2700 char *r;
adamc@682	2701
adamc@682	2702 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2703 r = ctx->heap.front;
adamc@682	2704 sprintf(r, "%u%n", cli, &len);
adamc@682	2705 ctx->heap.front += len+1;
adamc@682	2706 return r;
adamc@682	2707 }
adamc@682	2708
adamc@467	2709 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2710 if (s == NULL)
adamc@467	2711 return "NULL";
adamc@467	2712 else
adamc@467	2713 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2714 }
adamc@467	2715
adamc@311	2716 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2717 if (b == uw_Basis_False)
adamc@281	2718 return "FALSE";
adamc@281	2719 else
adamc@281	2720 return "TRUE";
adamc@281	2721 }
adamc@282	2722
adamc@467	2723 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2724 if (b == NULL)
adamc@467	2725 return "NULL";
adamc@467	2726 else
adamc@467	2727 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2728 }
adamc@467	2729
adamc@439	2730 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2731 size_t len;
adamc@682	2732 char r, s;
adam@1392	2733 struct tm stm = {};
adam@1392	2734 stm.tm_isdst = -1;
adamc@682	2735
adam@1365	2736 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2737 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2738 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2739 if (uw_sql_type_annotations) {
adam@1834	2740 if (t.microseconds) {
adam@1834	2741 r = uw_malloc(ctx, len + 21);
adam@1834	2742 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2743 } else {
adam@1834	2744 r = uw_malloc(ctx, len + 14);
adam@1834	2745 sprintf(r, "'%s'::timestamp", s);
adam@1834	2746 }
adam@1367	2747 } else {
adam@1834	2748 r = uw_malloc(ctx, len + 3);
adam@1834	2749 sprintf(r, "'%s'", s);
adam@1367	2750 }
adamc@682	2751 return r;
adamc@682	2752 } else
adamc@682	2753 return "<Invalid time>";
adamc@682	2754 }
adamc@682	2755
adamc@682	2756 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2757 size_t len;
adamc@439	2758 char *r;
adam@1392	2759 struct tm stm = {};
adam@1392	2760 stm.tm_isdst = -1;
adamc@439	2761
adam@1365	2762 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2763 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2764 r = ctx->heap.front;
adamc@439	2765 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2766 ctx->heap.front += len+1;
adamc@439	2767 return r;
adamc@439	2768 } else
adamc@439	2769 return "<Invalid time>";
adamc@439	2770 }
adamc@439	2771
adam@1364	2772 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2773 size_t len;
adam@1364	2774 char *r;
adam@1392	2775 struct tm stm = {};
adam@1392	2776 stm.tm_isdst = -1;
adam@1364	2777
adam@1365	2778 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2779 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2780 r = ctx->heap.front;
adam@1365	2781 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2782 ctx->heap.front += len;
adam@1365	2783 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2784 ctx->heap.front += 8;
adam@1364	2785 return r;
adam@1364	2786 } else
adam@1364	2787 return "<Invalid time>";
adam@1364	2788 }
adam@1364	2789
adamc@467	2790 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2791 if (t == NULL)
adamc@467	2792 return "NULL";
adamc@467	2793 else
adamc@467	2794 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2795 }
adamc@467	2796
adamc@311	2797 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2798 static uw_Basis_int true = 1;
adamc@311	2799 static uw_Basis_int false = 0;
adamc@282	2800
adamc@311	2801 if (b == uw_Basis_False)
adamc@282	2802 return (char *)&false;
adamc@282	2803 else
adamc@282	2804 return (char *)&true;
adamc@282	2805 }
adamc@284	2806
adamc@311	2807 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2808 int len;
adamc@284	2809 char *r;
adamc@284	2810
adamc@311	2811 uw_check_heap(ctx, INTS_MAX);
adamc@666	2812 r = ctx->heap.front;
adamc@284	2813 sprintf(r, "%lld%n", n, &len);
adamc@666	2814 ctx->heap.front += len+1;
adamc@284	2815 return r;
adamc@284	2816 }
adamc@285	2817
adamc@311	2818 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2819 int len;
adamc@285	2820 char *r;
adamc@285	2821
adamc@311	2822 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2823 r = ctx->heap.front;
adamc@285	2824 sprintf(r, "%g%n", n, &len);
adamc@666	2825 ctx->heap.front += len+1;
adamc@285	2826 return r;
adamc@285	2827 }
adamc@285	2828
adamc@821	2829 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2830 char *r = uw_malloc(ctx, 2);
adamc@821	2831 r[0] = ch;
adamc@821	2832 r[1] = 0;
adamc@821	2833 return r;
adamc@821	2834 }
adamc@821	2835
adamc@311	2836 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2837 if (b == uw_Basis_False)
adamc@285	2838 return "False";
adamc@285	2839 else
adamc@285	2840 return "True";
adamc@285	2841 }
adamc@288	2842
adam@1359	2843 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2844 size_t len;
adam@1352	2845 char *r;
adam@1392	2846 struct tm stm = {};
adam@1392	2847 stm.tm_isdst = -1;
adam@1352	2848
adam@1365	2849 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2850 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2851 r = ctx->heap.front;
adam@1352	2852 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2853 ctx->heap.front += len+1;
adam@1352	2854 return r;
adam@1352	2855 } else
adam@1352	2856 return "<Invalid time>";
adam@1352	2857 }
adam@1352	2858
adam@1629	2859 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2860 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2861 }
adam@1629	2862
adamc@311	2863 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2864 char *endptr;
adamc@311	2865 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2866
adamc@288	2867 if (s != '\0' && endptr == '\0') {
adamc@311	2868 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2869 *r = n;
adamc@288	2870 return r;
adamc@288	2871 } else
adamc@288	2872 return NULL;
adamc@288	2873 }
adamc@289	2874
adamc@311	2875 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2876 char *endptr;
adamc@311	2877 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2878
adamc@289	2879 if (s != '\0' && endptr == '\0') {
adamc@311	2880 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2881 *r = n;
adamc@289	2882 return r;
adamc@289	2883 } else
adamc@289	2884 return NULL;
adamc@289	2885 }
adamc@289	2886
adamc@821	2887 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2888 if (s[0] == 0) {
adamc@821	2889 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2890 r[0] = 0;
adamc@821	2891 return r;
adamc@821	2892 } else if (s[1] != 0)
adamc@821	2893 return NULL;
adamc@821	2894 else {
adamc@821	2895 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2896 r[0] = s[0];
adamc@821	2897 return r;
adamc@821	2898 }
adamc@821	2899 }
adamc@821	2900
adamc@311	2901 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2902 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2903 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2904
adamc@289	2905 if (!strcasecmp (s, "True"))
adamc@289	2906 return &true;
adamc@289	2907 else if (!strcasecmp (s, "False"))
adamc@289	2908 return &false;
adamc@289	2909 else
adamc@289	2910 return NULL;
adamc@289	2911 }
adamc@292	2912
adamc@436	2913 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2914 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2915 struct tm stm = {};
adam@1392	2916 stm.tm_isdst = -1;
adamc@436	2917
adamc@439	2918 if (dot) {
adamc@439	2919 *dot = 0;
adamc@439	2920 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2921 *dot = '.';
adamc@439	2922 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2923 r->seconds = mktime(&stm);
adam@1365	2924 r->microseconds = 0;
adamc@439	2925 return r;
adamc@439	2926 }
adamc@439	2927 else {
adamc@439	2928 *dot = '.';
adamc@439	2929 return NULL;
adamc@439	2930 }
adamc@436	2931 }
adamc@439	2932 else {
adam@2072	2933 if (strptime(s, ctx->app->time_format, &stm) == end) {
adamc@439	2934 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2935 r->seconds = mktime(&stm);
adam@1365	2936 r->microseconds = 0;
adamc@439	2937 return r;
adam@2072	2938 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@2072	2939 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@2072	2940 r->seconds = mktime(&stm);
adam@2072	2941 r->microseconds = 0;
adam@2072	2942 return r;
adam@2072	2943 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2944 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2945 r->seconds = mktime(&stm);
adam@1365	2946 r->microseconds = 0;
adamc@439	2947 return r;
adam@1632	2948 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2949 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2950 r->seconds = mktime(&stm);
adam@1632	2951 r->microseconds = 0;
adam@1632	2952 return r;
adamc@439	2953 }
adamc@439	2954 else
adamc@439	2955 return NULL;
adamc@439	2956 }
adamc@436	2957 }
adamc@436	2958
adam@1352	2959 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2960 char *end = strchr(s, 0);
adam@1374	2961 struct tm stm = {};
adam@1392	2962 stm.tm_isdst = -1;
adam@1352	2963
adam@1352	2964 if (strptime(s, fmt, &stm) == end) {
adam@1352	2965 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2966 r->seconds = mktime(&stm);
adam@1365	2967 r->microseconds = 0;
adam@1352	2968 return r;
adam@1352	2969 }
adam@1352	2970 else
adam@1352	2971 return NULL;
adam@1352	2972 }
adam@1352	2973
adamc@311	2974 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2975 char *endptr;
adamc@311	2976 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2977
adamc@292	2978 if (s != '\0' && endptr == '\0')
adamc@292	2979 return n;
adamc@292	2980 else
adam@1444	2981 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2982 }
adamc@293	2983
adamc@682	2984 #include <errno.h>
adamc@682	2985
adamc@678	2986 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2987 unsigned long long n;
adamc@682	2988
adamc@682	2989 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2990 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	2991 else {
adamc@682	2992 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2993 return ch;
adamc@682	2994 }
adamc@682	2995 }
adamc@682	2996
adamc@682	2997 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2998 char *endptr;
adamc@682	2999 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	3000
adamc@678	3001 if (s != '\0' && endptr == '\0')
adamc@678	3002 return n;
adamc@678	3003 else
adam@1444	3004 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	3005 }
adamc@678	3006
adamc@311	3007 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	3008 char *endptr;
adamc@311	3009 uw_Basis_float n = strtod(s, &endptr);
adamc@293	3010
adamc@293	3011 if (s != '\0' && endptr == '\0')
adamc@293	3012 return n;
adamc@293	3013 else
adam@1444	3014 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3015 }
adamc@293	3016
adamc@821	3017 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	3018 if (s[0] == 0)
adamc@821	3019 return 0;
adamc@821	3020 else if (s[1] != 0)
adam@1444	3021 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	3022 else
adamc@821	3023 return s[0];
adamc@821	3024 }
adamc@821	3025
adamc@311	3026 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	3027 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	3028 return uw_Basis_True;
adamc@296	3029 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	3030 return uw_Basis_False;
adamc@293	3031 else
adam@1444	3032 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3033 }
adamc@436	3034
adam@1352	3035 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	3036 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	3037 struct tm stm = {};
adam@1392	3038 stm.tm_isdst = -1;
adam@1352	3039
adam@1352	3040 if (dot) {
adam@1352	3041 *dot = 0;
adam@1352	3042 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	3043 *dot = '.';
adam@1410	3044 char usec[] = "000000";
adam@1410	3045 int len = strlen(dot+1);
adam@1410	3046 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	3047 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	3048 return r;
adam@1352	3049 }
adam@1352	3050 else {
adam@1352	3051 *dot = '.';
adam@1444	3052 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3053 }
adam@1352	3054 }
adam@1352	3055 else {
adam@1352	3056 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3057 uw_Basis_time r = { mktime(&stm) };
adam@1365	3058 return r;
adam@1352	3059 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3060 uw_Basis_time r = { mktime(&stm) };
adam@1365	3061 return r;
adam@1352	3062 } else
adam@1444	3063 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3064 }
adam@1352	3065 }
adam@1352	3066
adamc@436	3067 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	3068 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	3069 struct tm stm = {};
adam@1392	3070 stm.tm_isdst = -1;
adamc@436	3071
adamc@438	3072 if (dot) {
adamc@438	3073 *dot = 0;
adamc@438	3074 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	3075 *dot = '.';
adam@1365	3076 {
adam@1365	3077 uw_Basis_time r = { mktime(&stm) };
adam@1365	3078 return r;
adam@1365	3079 }
adamc@438	3080 }
adamc@438	3081 else {
adamc@438	3082 *dot = '.';
adam@1444	3083 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3084 }
adamc@438	3085 }
adamc@438	3086 else {
adam@2072	3087 if (strptime(s, ctx->app->time_format, &stm) == end) {
adam@2072	3088 uw_Basis_time r = { mktime(&stm) };
adam@2072	3089 return r;
adam@2072	3090 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3091 uw_Basis_time r = { mktime(&stm) };
adam@1365	3092 return r;
adam@1365	3093 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3094 uw_Basis_time r = { mktime(&stm) };
adam@1365	3095 return r;
adam@1632	3096 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3097 uw_Basis_time r = { mktime(&stm) };
adam@1632	3098 return r;
adam@1365	3099 } else
adam@1444	3100 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3101 }
adamc@436	3102 }
adamc@457	3103
adam@1352	3104 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3105 char *end = strchr(s, 0);
adamc@939	3106 struct tm stm = {};
adam@1392	3107 stm.tm_isdst = -1;
adamc@939	3108
adam@1365	3109 if (strptime(s, fmt, &stm) == end) {
adam@1365	3110 uw_Basis_time r = { mktime(&stm) };
adam@1365	3111 return r;
adam@1365	3112 } else
adam@1444	3113 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3114 }
adamc@939	3115
adamc@742	3116 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3117 char *r = ctx->heap.front;
adamc@742	3118 uw_Basis_blob b = {len, r};
adamc@742	3119
adamc@742	3120 uw_check_heap(ctx, len);
adamc@742	3121
adam@1992	3122 if (s[0] == '\\' && s[1] == 'x') {
adam@1992	3123 s += 2;
adam@1992	3124
adam@1992	3125 while (*s) {
adam@1992	3126 int n;
adam@1992	3127 sscanf(s, "%02x", &n);
adam@1992	3128 *r++ = n;
adam@1992	3129 s += 2;
adam@1992	3130 }
adam@1992	3131 } else {
adam@1992	3132 while (*s) {
adam@1992	3133 if (s[0] == '\\') {
adam@1992	3134 if (s[1] == '\\') {
adam@1992	3135 *r++ = '\\';
adam@1992	3136 s += 2;
adam@1992	3137 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adam@1992	3138 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adam@1992	3139 s += 4;
adam@1992	3140 }
adam@1992	3141 else {
adam@1992	3142 *r++ = '\\';
adam@1992	3143 ++s;
adam@1992	3144 }
adam@1992	3145 } else {
adam@1992	3146 *r++ = s[0];
adamc@742	3147 ++s;
adamc@742	3148 }
adamc@742	3149 }
adamc@742	3150 }
adamc@742	3151
adamc@742	3152 b.size = r - ctx->heap.front;
adamc@742	3153 ctx->heap.front = r;
adam@1992	3154
adamc@742	3155 return b;
adamc@742	3156 }
adamc@742	3157
adam@1402	3158 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3159
adamc@463	3160 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3161 int len = strlen(c);
adamc@854	3162 char *p = ctx->outHeaders.start;
adamc@474	3163
adamc@1134	3164 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3165 char *p2;
adamc@474	3166 p += 13;
adamc@474	3167 p2 = strchr(p, '=');
adamc@474	3168
adamc@474	3169 if (p2) {
adamc@474	3170 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3171
adamc@474	3172 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3173 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3174 return NULL;
adamc@1052	3175 else {
adamc@1052	3176 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3177 memcpy(ret, p2+1, sz);
adamc@1052	3178 ret[sz] = 0;
adamc@1052	3179 return ret;
adamc@1052	3180 }
adamc@474	3181 }
adamc@474	3182 }
adamc@474	3183 }
adamc@463	3184
adamc@1134	3185 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3186 char *p2;
adamc@1051	3187
adamc@854	3188 while (1) {
adamc@1051	3189 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3190 if ((p2 = strchr(p, ';'))) {
adamc@1051	3191 size_t n = p2 - (p + len);
adamc@1051	3192 char *r = uw_malloc(ctx, n);
adamc@1051	3193 memcpy(r, p + 1 + len, n-1);
adamc@1051	3194 r[n-1] = 0;
adamc@1051	3195 return r;
adamc@1051	3196 } else
adamc@1051	3197 return p + 1 + len;
adamc@1134	3198 } else if ((p = strchr(p, ';')))
adamc@854	3199 p += 2;
adamc@463	3200 else
adamc@463	3201 return NULL;
adamc@463	3202 }
adamc@463	3203 }
adamc@792	3204
adamc@792	3205 return NULL;
adamc@457	3206 }
adamc@462	3207
adam@1877	3208 static void set_cookie(uw_context ctx) {
adam@1877	3209 if (ctx->usedSig)
adam@1877	3210 ctx->needsResig = 1;
adam@1877	3211 }
adam@1877	3212
adamc@1050	3213 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	3214 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3215 uw_write_header(ctx, c);
adamc@462	3216 uw_write_header(ctx, "=");
adamc@462	3217 uw_write_header(ctx, v);
adamc@466	3218 uw_write_header(ctx, "; path=");
adamc@466	3219 uw_write_header(ctx, prefix);
adamc@1050	3220 if (expires) {
adamc@1050	3221 char formatted[30];
adam@1392	3222 struct tm tm = {};
adam@1392	3223 tm.tm_isdst = -1;
adamc@1050	3224
adam@1365	3225 gmtime_r(&expires->seconds, &tm);
adamc@1050	3226
adamc@1050	3227 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3228
adamc@1050	3229 uw_write_header(ctx, "; expires=");
adamc@1050	3230 uw_write_header(ctx, formatted);
adamc@1050	3231 }
adamc@1050	3232 if (secure)
adamc@1050	3233 uw_write_header(ctx, "; secure");
adamc@462	3234 uw_write_header(ctx, "\r\n");
adam@1877	3235 set_cookie(ctx);
adamc@462	3236
adamc@462	3237 return uw_unit_v;
adamc@462	3238 }
adamc@667	3239
adamc@1050	3240 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3241 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3242 uw_write_header(ctx, c);
adamc@1050	3243 uw_write_header(ctx, "=; path=");
adamc@1050	3244 uw_write_header(ctx, prefix);
adamc@1052	3245 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3246 set_cookie(ctx);
adamc@1050	3247
adamc@1050	3248 return uw_unit_v;
adamc@1050	3249 }
adamc@1050	3250
adamc@1113	3251 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3252
adamc@682	3253 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3254 unsigned i;
adamc@682	3255 delta *d;
adamc@671	3256
adamc@682	3257 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3258 if (ctx->deltas[i].client == client)
adamc@682	3259 return &ctx->deltas[i];
adamc@671	3260
adamc@682	3261 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3262 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3263 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3264
adamc@682	3265 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3266 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3267 }
adamc@671	3268
adamc@682	3269 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3270 d->client = client;
adam@1369	3271 uw_buffer_reset(&d->msgs);
adamc@682	3272 return d;
adamc@671	3273 }
adamc@671	3274
adamc@668	3275 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3276 if (ctx->client == NULL)
adamc@682	3277 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3278
adamc@682	3279 return new_channel(ctx->client);
adamc@668	3280 }
adamc@668	3281
adamc@668	3282 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3283 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3284 size_t len;
adamc@682	3285 int preLen;
adamc@682	3286 char pre[INTS_MAX + 2];
adamc@668	3287
adamc@682	3288 len = strlen(msg);
adamc@682	3289
adamc@682	3290 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3291
adam@1369	3292 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3293 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3294 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3295
adamc@671	3296 return uw_unit_v;
adamc@668	3297 }
adamc@671	3298
adam@1327	3299 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3300 int i;
adamc@1131	3301 cleanup *cl;
adamc@1131	3302
adamc@1131	3303 if (ctx->client)
adamc@1131	3304 release_client(ctx->client);
adamc@1131	3305
adamc@1131	3306 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3307 cl->func(cl->arg);
adamc@1131	3308
adamc@1131	3309 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3310
adamc@1131	3311 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3312 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3313 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3314
adamc@1131	3315 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3316 if (ctx->transactionals[i].free)
adam@1327	3317 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3318
adam@1941	3319 if (ctx->app && ctx->transaction_started) {
adam@1941	3320 ctx->transaction_started = 0;
adam@1941	3321 return ctx->app->db_rollback(ctx);
adam@1941	3322 } else
adam@1941	3323 return 0;
adamc@1131	3324 }
adamc@1131	3325
adam@1956	3326 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	3327 const char uw_begin_html5[] = "<!DOCTYPE html><html>";
adam@1728	3328
adam@1877	3329 extern int uw_hash_blocksize;
adam@1877	3330
adam@1877	3331 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3332
adam@1877	3333 static char find_sig(char haystack) {
adam@1877	3334 int i;
adam@1877	3335 char *s = strstr(haystack, sig_intro);
adam@1877	3336
adam@1877	3337 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3338 return NULL;
phurst@1981	3339
adam@1877	3340 s += sizeof sig_intro - 1;
adam@1877	3341
adam@1877	3342 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3343 if (!isxdigit((int)s[i]))
adam@1877	3344 return NULL;
adam@1877	3345
adam@1877	3346 if (s[i] != '"')
adam@1877	3347 return NULL;
adam@1877	3348
adam@1877	3349 return s;
adam@1877	3350 }
adam@1877	3351
adam@2033	3352 static pthread_mutex_t message_send_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2033	3353
adam@1938	3354 int uw_commit(uw_context ctx) {
adamc@1104	3355 int i;
adam@1877	3356 char *sig;
adamc@1104	3357
adamc@1131	3358 if (uw_has_error(ctx)) {
adam@1327	3359 uw_rollback(ctx, 0);
adam@1938	3360 return 0;
adamc@1131	3361 }
adamc@1131	3362
adamc@1104	3363 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3364 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3365 if (ctx->transactionals[i].commit) {
adamc@1083	3366 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3367 if (uw_has_error(ctx)) {
adam@1327	3368 uw_rollback(ctx, 0);
adam@1938	3369 return 0;
adamc@1131	3370 }
adamc@1131	3371 }
adamc@771	3372
adam@2033	3373 // Here's an important lock to provide the abstraction that all messages from one transaction are sent as an atomic unit.
adam@2033	3374 if (ctx->used_deltas > 0)
adam@2033	3375 pthread_mutex_lock(&message_send_mutex);
adam@2033	3376
adam@2000	3377 if (ctx->transaction_started) {
adam@2000	3378 int code = ctx->app->db_commit(ctx);
adam@2000	3379
adam@2000	3380 if (code) {
adam@2033	3381 if (ctx->used_deltas > 0)
adam@2033	3382 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3383
adam@2000	3384 if (ctx->client)
adam@2000	3385 release_client(ctx->client);
adam@2000	3386
adam@2000	3387 if (code == -1) {
adam@2000	3388 // This case is for a serialization failure, which is not really an "error."
adam@2000	3389 // The transaction will restart, so we should rollback any transactionals
adam@2000	3390 // that triggered above.
adam@2000	3391
adam@2000	3392 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3393 if (ctx->transactionals[i].rollback != NULL)
adam@2000	3394 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2000	3395
adam@2000	3396 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3397 if (ctx->transactionals[i].free)
adam@2000	3398 ctx->transactionals[i].free(ctx->transactionals[i].data, 1);
adam@2000	3399
grrwlf@2030	3400 return 1;
adam@2000	3401 }
adam@2000	3402
adam@2000	3403 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3404 if (ctx->transactionals[i].free)
adam@2000	3405 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3406
adam@2000	3407 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@2000	3408 return 0;
adam@2000	3409 }
adam@2000	3410 }
adam@2000	3411
adamc@1104	3412 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3413 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3414 if (ctx->transactionals[i].commit) {
adamc@1083	3415 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3416 if (uw_has_error(ctx)) {
adam@2033	3417 if (ctx->used_deltas > 0)
adam@2033	3418 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3419
adam@2033	3420 if (ctx->client)
adam@2033	3421 release_client(ctx->client);
adam@2033	3422
adam@2033	3423 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3424 if (ctx->transactionals[i].rollback != NULL)
adam@2033	3425 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2033	3426
adam@2033	3427 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3428 if (ctx->transactionals[i].free)
adam@2033	3429 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3430
adam@1938	3431 return 0;
adamc@1131	3432 }
adamc@1131	3433 }
adamc@1131	3434
adamc@682	3435 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3436 delta *d = &ctx->deltas[i];
adamc@682	3437 client *c = find_client(d->client);
adamc@682	3438
adam@1551	3439 assert (c != NULL);
adam@1551	3440 assert(c->mode == USED);
adamc@682	3441
adam@1447	3442 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3443 }
adamc@682	3444
adam@2033	3445 if (ctx->used_deltas > 0)
adam@2033	3446 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3447
adamc@682	3448 if (ctx->client)
adamc@685	3449 release_client(ctx->client);
adamc@771	3450
adamc@1104	3451 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3452 if (ctx->transactionals[i].free)
adam@1327	3453 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3454
vshabanoff@1726	3455 uw_check(ctx, 1);
vshabanoff@1726	3456 *ctx->page.front = 0;
adam@1413	3457
adam@1956	3458 if (!ctx->returning_indirectly
adam@1956	3459 && (ctx->app->is_html5
adam@1956	3460 ? !strncmp(ctx->page.start, uw_begin_html5, sizeof uw_begin_html5 - 1)
adam@1956	3461 : !strncmp(ctx->page.start, uw_begin_xhtml, sizeof uw_begin_xhtml - 1))) {
adam@1728	3462 char *s;
adam@1728	3463
adam@1728	3464 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1956	3465 s = ctx->page.start + (ctx->app->is_html5 ? sizeof uw_begin_html5 - 1 : sizeof uw_begin_xhtml - 1);
adam@1728	3466 s = strchr(s, '<');
adam@1728	3467 if (s == NULL) {
adam@1728	3468 // Weird. Document has no tags!
adam@1728	3469
adam@1728	3470 uw_write(ctx, "<head></head><body></body>");
adam@1728	3471 uw_check(ctx, 1);
adam@1728	3472 *ctx->page.front = 0;
adam@1728	3473 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3474 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3475
adam@1729	3476 // Any freeform JavaScript to include?
adam@1729	3477 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3478 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3479 size_t lenP = lenH + 40 + len;
adam@1729	3480 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3481
adam@1729	3482 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3483 start += ctx->page.start - oldPage;
adam@1729	3484 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3485 ctx->page.front += lenP;
adam@1729	3486 memcpy(start, ctx->script_header, lenH);
adam@1729	3487 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3488 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3489 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3490 } else {
adam@1729	3491 size_t lenH = strlen(ctx->script_header);
adam@1729	3492 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3493
adam@1729	3494 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3495 start += ctx->page.start - oldPage;
adam@1729	3496 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3497 ctx->page.front += lenH;
adam@1729	3498 memcpy(start, ctx->script_header, lenH);
adam@1729	3499 }
adam@1728	3500 } else {
adam@1728	3501 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3502
adam@1729	3503 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3504 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3505 size_t lenP = lenH + 53 + len;
adam@1729	3506 char start = s, oldPage = ctx->page.start;
adam@1729	3507
adam@1729	3508 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3509 start += ctx->page.start - oldPage;
adam@1729	3510 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3511 ctx->page.front += lenP;
adam@1729	3512 memcpy(start, "<head>", 6);
adam@1729	3513 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3514 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3515 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3516 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3517 } else {
adam@1729	3518 size_t lenH = strlen(ctx->script_header);
adam@1729	3519 size_t lenP = lenH + 13;
adam@1729	3520 char start = s, oldPage = ctx->page.start;
adam@1729	3521
adam@1729	3522 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3523 start += ctx->page.start - oldPage;
adam@1729	3524 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3525 ctx->page.front += lenP;
adam@1729	3526 memcpy(start, "<head>", 6);
adam@1729	3527 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3528 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3529 }
adamc@916	3530 }
adamc@916	3531 }
adam@1877	3532
adam@1877	3533 if (ctx->needsResig) {
adam@1877	3534 sig = find_sig(ctx->page.start);
adam@1877	3535 if (sig) {
adam@1877	3536 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3537
adam@1877	3538 do {
adam@1877	3539 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3540 sig = find_sig(sig);
adam@1877	3541 } while (sig);
adam@1877	3542 }
adam@1877	3543 }
adam@1938	3544
adam@1938	3545 return 0;
adamc@671	3546 }
adamc@671	3547
adamc@683	3548
adamc@1113	3549 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3550
adam@2001	3551 int uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3552 uw_callback_with_retry free) {
adamc@771	3553 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3554 if (ctx->used_transactionals+1 > uw_transactionals_max)
adam@2001	3555 // Exceeded limit on number of transactionals.
adam@2001	3556 return -1;
adamc@1084	3557 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3558 ++ctx->n_transactionals;
adamc@771	3559 }
adamc@771	3560
adamc@771	3561 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3562 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3563 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3564 ctx->transactionals[ctx->used_transactionals++].free = free;
adam@2001	3565
adam@2001	3566 return 0;
adamc@771	3567 }
adamc@771	3568
adamc@683	3569
adamc@683	3570 // "Garbage collection"
adamc@683	3571
adamc@1121	3572 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3573 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3574
adamc@1121	3575 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3576 int r = setjmp(ctx->jmp_buf);
adamc@683	3577
adamc@1121	3578 if (r == 0)
adamc@1121	3579 uw_do_expunge(ctx, cli, data);
adamc@1121	3580 else
adamc@1121	3581 ctx->app->db_rollback(ctx);
adamc@1121	3582
adamc@1121	3583 uw_post_expunge(ctx, data);
adamc@683	3584
adamc@683	3585 return r;
adamc@683	3586 }
adamc@683	3587
adamc@683	3588 void uw_prune_clients(uw_context ctx) {
adamc@683	3589 client c, next, *prev = NULL;
adamc@683	3590 time_t cutoff;
adamc@683	3591
adamc@1094	3592 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3593
adamc@683	3594 pthread_mutex_lock(&clients_mutex);
adam@1707	3595 pruning_thread = pthread_self();
adam@1707	3596 pruning_thread_initialized = 1;
adamc@683	3597
adamc@683	3598 for (c = clients_used; c; c = next) {
adamc@683	3599 next = c->next;
adamc@683	3600 pthread_mutex_lock(&c->lock);
adamc@685	3601 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3602 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3603 if (prev)
adamc@683	3604 prev->next = next;
adamc@683	3605 else
adamc@683	3606 clients_used = next;
adamc@683	3607 while (fk == UNLIMITED_RETRY) {
adam@1941	3608 uw_reset(ctx);
adamc@1121	3609 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3610 if (fk == UNLIMITED_RETRY)
adamc@684	3611 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3612 }
adamc@684	3613 if (fk == SUCCESS)
adamc@684	3614 free_client(c);
adamc@1121	3615 else
adamc@856	3616 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3617 }
adamc@683	3618 else
adamc@683	3619 prev = c;
adamc@683	3620 pthread_mutex_unlock(&c->lock);
adamc@683	3621 }
adamc@683	3622
adamc@683	3623 pthread_mutex_unlock(&clients_mutex);
adamc@683	3624 }
adamc@687	3625
adamc@687	3626 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3627 int r = setjmp(ctx->jmp_buf);
adamc@687	3628
adamc@687	3629 if (r == 0) {
adam@1936	3630 uw_ensure_transaction(ctx);
adamc@1094	3631 ctx->app->initializer(ctx);
adamc@1094	3632 if (ctx->app->db_commit(ctx))
adamc@687	3633 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3634 }
adamc@687	3635
adamc@687	3636 return r;
adamc@687	3637 }
adamc@717	3638
adamc@1065	3639 static int url_bad(uw_Basis_string s) {
adamc@1065	3640 for (; *s; ++s)
adamc@1153	3641 if (!isgraph((int)*s))
adamc@1065	3642 return 1;
adamc@1065	3643
adamc@1065	3644 return 0;
adamc@1065	3645 }
adamc@1065	3646
adamc@717	3647 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3648 if (url_bad(s))
adamc@1065	3649 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3650 if (ctx->app->check_url(s))
adamc@770	3651 return s;
adamc@770	3652 else
adamc@770	3653 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3654 }
adamc@734	3655
adamc@770	3656 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3657 if (url_bad(s))
adamc@1065	3658 return NULL;
adamc@1094	3659 if (ctx->app->check_url(s))
adamc@770	3660 return s;
adamc@770	3661 else
adamc@770	3662 return NULL;
adamc@770	3663 }
adamc@770	3664
adam@1465	3665 static int mime_format(const char *s) {
adamc@770	3666 for (; *s; ++s)
grrwlf@2024	3667 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.' && *s != '+')
adamc@770	3668 return 0;
adamc@770	3669
adamc@770	3670 return 1;
adamc@770	3671 }
adamc@770	3672
adamc@741	3673 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3674 if (!mime_format(s))
adamc@770	3675 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3676
adamc@1094	3677 if (ctx->app->check_mime(s))
adamc@770	3678 return s;
adamc@770	3679 else
adamc@770	3680 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3681 }
adamc@770	3682
adamc@770	3683 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3684 if (!mime_format(s))
adamc@770	3685 return NULL;
adamc@770	3686
adamc@1094	3687 if (ctx->app->check_mime(s))
adamc@770	3688 return s;
adamc@770	3689 else
adamc@770	3690 return NULL;
adamc@741	3691 }
adamc@741	3692
adam@1465	3693 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3694 if (!mime_format(s))
adam@1465	3695 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3696
adam@1465	3697 if (ctx->app->check_requestHeader(s))
adam@1465	3698 return s;
adam@1465	3699 else
adam@1465	3700 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3701 }
adam@1465	3702
adam@1465	3703 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3704 if (!mime_format(s))
adam@1465	3705 return NULL;
adam@1465	3706
adam@1465	3707 if (ctx->app->check_requestHeader(s))
adam@1465	3708 return s;
adam@1465	3709 else
adam@1465	3710 return NULL;
adam@1465	3711 }
adam@1465	3712
adam@1465	3713 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3714 if (!mime_format(s))
adam@1465	3715 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3716
adam@1465	3717 if (ctx->app->check_responseHeader(s))
adam@1465	3718 return s;
adam@1465	3719 else
adam@1465	3720 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3721 }
adam@1465	3722
adam@1799	3723 static int envVar_format(const char *s) {
adam@1799	3724 for (; *s; ++s)
adam@1799	3725 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3726 return 0;
adam@1799	3727
adam@1799	3728 return 1;
adam@1799	3729 }
adam@1799	3730
adam@1465	3731 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3732 if (!envVar_format(s))
adam@1465	3733 return NULL;
adam@1465	3734
adam@1465	3735 if (ctx->app->check_responseHeader(s))
adam@1465	3736 return s;
adam@1465	3737 else
adam@1465	3738 return NULL;
adam@1465	3739 }
adam@1465	3740
adam@1799	3741 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3742 if (!envVar_format(s))
adam@1799	3743 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3744
adam@1799	3745 if (ctx->app->check_envVar(s))
adam@1799	3746 return s;
adam@1799	3747 else
adam@1799	3748 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3749 }
adam@1799	3750
adam@1799	3751 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3752 if (!mime_format(s))
adam@1799	3753 return NULL;
adam@1799	3754
adam@1799	3755 if (ctx->app->check_envVar(s))
adam@1799	3756 return s;
adam@1799	3757 else
adam@1799	3758 return NULL;
adam@1799	3759 }
adam@1799	3760
adam@1465	3761 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3762 return uw_Basis_requestHeader(ctx, name);
adam@1465	3763 }
adam@1465	3764
adam@1465	3765 static int mime_value_format(const char *s) {
adam@1465	3766 for (; *s; ++s)
adam@1465	3767 if (s == '\r' \|\| s == '\n')
adam@1465	3768 return 0;
adam@1465	3769
adam@1465	3770 return 1;
adam@1465	3771 }
adam@1465	3772
adam@1465	3773 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3774 if (!mime_value_format(value))
adam@1465	3775 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3776
adam@1465	3777 uw_write_header(ctx, name);
adam@1465	3778 uw_write_header(ctx, ": ");
adam@1465	3779 uw_write_header(ctx, value);
adam@1465	3780 uw_write_header(ctx, "\r\n");
adam@1465	3781
adam@1465	3782 return uw_unit_v;
adam@1465	3783 }
adam@1465	3784
adam@1799	3785 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1993	3786 if (ctx->get_env)
adam@1993	3787 return ctx->get_env(ctx->get_env_data, name);
adam@1993	3788 else
adam@1994	3789 return getenv(name);
adam@1799	3790 }
adam@1799	3791
adamc@734	3792 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3793 return s ? s : "";
adamc@734	3794 }
adamc@734	3795
adamc@734	3796 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3797 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3798 int i;
phurst@1981	3799
adamc@734	3800 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3801 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3802
adamc@734	3803 return r;
adamc@734	3804 }
adamc@734	3805
adam@1512	3806 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3807 * optimizations that would enable timing attacks. See:
adam@1512	3808 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3809 */
adam@1512	3810 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3811 int i, x = 0, len1 = strlen(s1);
adam@1512	3812
adam@1512	3813 if (len1 != strlen(s2)) return 0;
adam@1512	3814
adam@1512	3815 for (i = 0; i < len1; ++i) {
adam@1512	3816 __asm__ __volatile__ ("");
adam@1512	3817 x \|= s1[i] ^ s2[i];
adam@1512	3818 }
adam@1512	3819
adam@1512	3820 return x == 0;
adam@1512	3821 }
adam@1512	3822
adamc@734	3823 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3824 ctx->usedSig = 1;
adamc@1094	3825 return ctx->app->cookie_sig(ctx);
adamc@734	3826 }
adamc@737	3827
adamc@737	3828 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3829 return f.name;
adamc@737	3830 }
adamc@737	3831
adamc@740	3832 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3833 return f.type;
adamc@740	3834 }
adamc@740	3835
adamc@745	3836 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3837 return b.size;
adamc@745	3838 }
adamc@745	3839
adamc@1119	3840 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3841 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3842
adamc@1119	3843 return b;
adamc@1119	3844 }
adamc@1119	3845
adamc@737	3846 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3847 return f.data;
adamc@737	3848 }
adamc@741	3849
adam@1347	3850 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3851 return pb.type;
adam@1347	3852 }
adam@1347	3853
adam@1347	3854 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3855 return pb.data;
adam@1347	3856 }
adam@1347	3857
adam@1471	3858 static char *old_headers(uw_context ctx) {
adam@1471	3859 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3860 return NULL;
adam@1471	3861 else {
adam@1471	3862 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3863
adam@1471	3864 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3865 return NULL;
adam@1471	3866 else {
adam@1471	3867 s = strchr(s+15, '\n');
adam@1471	3868 if (s == NULL)
adam@1471	3869 return NULL;
adam@1471	3870 else
adam@1471	3871 return uw_strdup(ctx, s+1);
adam@1471	3872 }
adam@1471	3873 }
adam@1471	3874 }
adam@1471	3875
adamc@741	3876 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3877 cleanup *cl;
adamc@741	3878 int len;
adam@1471	3879 char *oldh;
adamc@741	3880
adam@1451	3881 if (!ctx->allowed_to_return_indirectly)
adam@1451	3882 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3883
adamc@1065	3884 ctx->returning_indirectly = 1;
adam@1471	3885 oldh = old_headers(ctx);
adam@1369	3886 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3887 uw_buffer_reset(&ctx->page);
adamc@741	3888
adamc@856	3889 uw_write_header(ctx, on_success);
adamc@856	3890 uw_write_header(ctx, "Content-Type: ");
adamc@741	3891 uw_write_header(ctx, mimeType);
adam@1934	3892 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369	3893 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3894 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3895 ctx->outHeaders.front += len;
adamc@1066	3896 uw_write_header(ctx, "\r\n");
adam@1471	3897 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3898
adam@1369	3899 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3900
adamc@741	3901 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3902 cl->func(cl->arg);
adamc@741	3903
adamc@741	3904 ctx->cleanup_front = ctx->cleanup;
adamc@741	3905
adamc@1065	3906 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3907 }
adamc@1065	3908
adam@2046	3909 void uw_replace_page(uw_context ctx, const char *data, size_t size) {
adam@2046	3910 uw_buffer_reset(&ctx->page);
adam@2046	3911 ctx_uw_buffer_append(ctx, "page", &ctx->page, data, size);
adam@2046	3912 }
adam@2046	3913
adam@1932	3914 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932	3915 cleanup *cl;
adam@1932	3916 int len;
adam@1932	3917 char *oldh;
adam@1932	3918
adam@1932	3919 if (!ctx->allowed_to_return_indirectly)
adam@1932	3920 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932	3921
adam@1932	3922 ctx->returning_indirectly = 1;
adam@1932	3923 oldh = old_headers(ctx);
adam@1932	3924 uw_buffer_reset(&ctx->outHeaders);
adam@1932	3925
adam@1932	3926 uw_write_header(ctx, on_success);
adam@1932	3927 uw_write_header(ctx, "Content-Type: ");
adam@1932	3928 uw_write_header(ctx, mimeType);
adam@1934	3929 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932	3930 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932	3931 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932	3932 ctx->outHeaders.front += len;
adam@1932	3933 uw_write_header(ctx, "\r\n");
adam@1932	3934 if (oldh) uw_write_header(ctx, oldh);
adam@1932	3935
adam@1932	3936 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932	3937 cl->func(cl->arg);
adam@1932	3938
adam@1932	3939 ctx->cleanup_front = ctx->cleanup;
adam@1932	3940
adam@1932	3941 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932	3942 }
adam@1932	3943
adamc@1065	3944 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3945 cleanup *cl;
adamc@1066	3946 char *s;
adam@1471	3947 char *oldh;
adamc@1065	3948
adam@1451	3949 if (!ctx->allowed_to_return_indirectly)
adam@1451	3950 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3951
adamc@1065	3952 ctx->returning_indirectly = 1;
adam@1471	3953 oldh = old_headers(ctx);
adam@1369	3954 uw_buffer_reset(&ctx->page);
adam@1369	3955 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3956 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3957 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3958 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3959
adam@1409	3960 if (on_success[0])
adam@1409	3961 uw_write_header(ctx, on_redirect);
adam@1409	3962 else
adam@1409	3963 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3964 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3965 if (s) {
adamc@1066	3966 char *s2;
adam@1409	3967 if (s[0] == '\n') ++s;
adam@1409	3968 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3969 *s2 = 0;
adamc@1066	3970 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3971 uw_write_header(ctx, s);
adamc@1066	3972 uw_write_header(ctx, "\n");
adamc@1066	3973 }
adamc@1066	3974 }
adamc@1066	3975 }
adamc@1066	3976
adamc@1065	3977 uw_write_header(ctx, "Location: ");
adamc@1065	3978 uw_write_header(ctx, url);
adamc@1065	3979 uw_write_header(ctx, "\r\n\r\n");
adam@1471	3980 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	3981
adamc@1065	3982 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3983 cl->func(cl->arg);
adamc@1065	3984
adamc@1065	3985 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3986
adamc@1065	3987 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3988 }
adamc@874	3989
adamc@874	3990 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	3991 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	3992
adamc@874	3993 for (; *s; ++s) {
adamc@874	3994 if (s[0] == '\'') {
adamc@874	3995 *r++ = '\'';
adamc@874	3996 for (++s; *s; ++s) {
adamc@874	3997 if (s[0] == '\'') {
adamc@874	3998 *r++ = '\'';
adamc@874	3999 break;
adamc@874	4000 } else if (s[0] == '\\') {
adam@1467	4001 *r++ = '\\';
adam@1467	4002 *r++ = s[1];
adam@1467	4003 ++s;
adamc@874	4004 } else
adamc@874	4005 *r++ = s[0];
adamc@874	4006 }
adamc@874	4007 if (*s == 0) break;
adam@1467	4008 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	4009 s += 3;
adamc@874	4010 else
adamc@874	4011 *r++ = s[0];
adamc@874	4012 }
adamc@874	4013
adam@1467	4014 *r = 0;
adam@1467	4015 return ret;
adamc@874	4016 }
adamc@874	4017
adamc@922	4018 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	4019 va_list ap;
adamc@922	4020 size_t len = 1;
adamc@922	4021 char s, r, *s2;
phurst@1981	4022
adamc@922	4023 va_start(ap, ctx);
adamc@922	4024 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4025 len += strlen(s);
adamc@922	4026 va_end(ap);
adamc@922	4027
adamc@922	4028 r = uw_malloc(ctx, len);
adamc@922	4029 va_start(ap, ctx);
adamc@922	4030 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4031 while (*s)
adamc@922	4032 s2++ = s++;
adamc@922	4033 va_end(ap);
adamc@922	4034 *s2 = 0;
adamc@922	4035
adamc@922	4036 return r;
adamc@922	4037 }
adamc@1006	4038
adam@1365	4039 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	4040
adamc@1006	4041 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	4042 uw_Basis_time r = { time(NULL) };
adam@1365	4043 return r;
adamc@1006	4044 }
adamc@1061	4045
adam@1369	4046 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	4047 tm.seconds += n;
adam@1365	4048 return tm;
adamc@1138	4049 }
adamc@1138	4050
adam@1514	4051 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	4052 return difftime(tm2.seconds, tm1.seconds);
adam@1514	4053 }
adam@1514	4054
adam@1685	4055 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	4056 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	4057 }
adam@1685	4058
adam@1685	4059 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	4060 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	4061 }
adam@1685	4062
adam@1514	4063 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	4064 return tm.seconds;
adam@1514	4065 }
adam@1514	4066
phurst@1971	4067 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	4068 struct tm tm = { .tm_year = year - 1900, .tm_mon = month, .tm_mday = day,
adam@2015	4069 .tm_hour = hour, .tm_min = minute, .tm_sec = second,
adam@2015	4070 .tm_isdst = -1 };
phurst@1984	4071 uw_Basis_time r = { timelocal(&tm) };
phurst@1971	4072 return r;
phurst@1971	4073 }
phurst@1971	4074
phurst@1971	4075 uw_Basis_int uw_Basis_datetimeYear(uw_context ctx, uw_Basis_time time) {
phurst@1971	4076 struct tm tm;
phurst@1982	4077 localtime_r(&time.seconds, &tm);
phurst@1971	4078 return tm.tm_year + 1900;
phurst@1971	4079 }
phurst@1971	4080
phurst@1971	4081 uw_Basis_int uw_Basis_datetimeMonth(uw_context ctx, uw_Basis_time time) {
phurst@1971	4082 struct tm tm;
phurst@1982	4083 localtime_r(&time.seconds, &tm);
phurst@1971	4084 return tm.tm_mon;
phurst@1971	4085 }
phurst@1971	4086
phurst@1971	4087 uw_Basis_int uw_Basis_datetimeDay(uw_context ctx, uw_Basis_time time) {
phurst@1971	4088 struct tm tm;
phurst@1982	4089 localtime_r(&time.seconds, &tm);
phurst@1971	4090 return tm.tm_mday;
phurst@1971	4091 }
phurst@1971	4092
phurst@1971	4093 uw_Basis_int uw_Basis_datetimeHour(uw_context ctx, uw_Basis_time time) {
phurst@1971	4094 struct tm tm;
phurst@1982	4095 localtime_r(&time.seconds, &tm);
phurst@1971	4096 return tm.tm_hour;
phurst@1971	4097 }
phurst@1971	4098
phurst@1971	4099 uw_Basis_int uw_Basis_datetimeMinute(uw_context ctx, uw_Basis_time time) {
phurst@1971	4100 struct tm tm;
phurst@1982	4101 localtime_r(&time.seconds, &tm);
phurst@1971	4102 return tm.tm_min;
phurst@1971	4103 }
phurst@1971	4104
phurst@1971	4105 uw_Basis_int uw_Basis_datetimeSecond(uw_context ctx, uw_Basis_time time) {
phurst@1971	4106 struct tm tm;
phurst@1982	4107 localtime_r(&time.seconds, &tm);
phurst@1971	4108 return tm.tm_sec;
phurst@1971	4109 }
phurst@1971	4110
phurst@1973	4111 uw_Basis_int uw_Basis_datetimeDayOfWeek(uw_context ctx, uw_Basis_time time) {
phurst@1973	4112 struct tm tm;
phurst@1982	4113 localtime_r(&time.seconds, &tm);
phurst@1973	4114 return tm.tm_wday;
phurst@1973	4115 }
phurst@1971	4116
phurst@1971	4117
adamc@1061	4118 void uw_get_global(uw_context ctx, char name) {
adamc@1061	4119 int i;
adamc@1061	4120
adamc@1061	4121 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4122 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	4123 return ctx->globals[i].data;
adamc@1061	4124
adamc@1061	4125 return NULL;
adamc@1061	4126 }
adamc@1061	4127
adamc@1113	4128 size_t uw_globals_max = SIZE_MAX;
adamc@1113	4129
adamc@1061	4130 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	4131 int i;
adamc@1061	4132
adamc@1061	4133 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4134 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	4135 if (ctx->globals[i].free)
adamc@1061	4136 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	4137 ctx->globals[i].data = data;
adamc@1061	4138 ctx->globals[i].free = free;
adamc@1061	4139 return;
adamc@1061	4140 }
adamc@1089	4141
adamc@1113	4142 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	4143 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	4144
adamc@1061	4145 ++ctx->n_globals;
adamc@1061	4146 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	4147 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	4148 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	4149 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	4150 }
adamc@1061	4151
adamc@1061	4152 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	4153 return !!isalnum((int)c);
adamc@1061	4154 }
adamc@1061	4155
adamc@1061	4156 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	4157 return !!isalpha((int)c);
adamc@1061	4158 }
adamc@1061	4159
adamc@1061	4160 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	4161 return !!isblank((int)c);
adamc@1061	4162 }
adamc@1061	4163
adamc@1061	4164 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	4165 return !!iscntrl((int)c);
adamc@1061	4166 }
adamc@1061	4167
adamc@1061	4168 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4169 return !!isdigit((int)c);
adamc@1061	4170 }
adamc@1061	4171
adamc@1061	4172 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	4173 return !!isgraph((int)c);
adamc@1061	4174 }
adamc@1061	4175
adamc@1061	4176 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4177 return !!islower((int)c);
adamc@1061	4178 }
adamc@1061	4179
adamc@1061	4180 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	4181 return !!isprint((int)c);
adamc@1061	4182 }
adamc@1061	4183
adamc@1061	4184 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	4185 return !!ispunct((int)c);
adamc@1061	4186 }
adamc@1061	4187
adamc@1061	4188 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	4189 return !!isspace((int)c);
adamc@1061	4190 }
adamc@1063	4191
adamc@1061	4192 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4193 return !!isupper((int)c);
adamc@1061	4194 }
adamc@1061	4195
adamc@1061	4196 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4197 return !!isxdigit((int)c);
adamc@1061	4198 }
adamc@1061	4199
adamc@1061	4200 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4201 return tolower((int)c);
adamc@1061	4202 }
adamc@1061	4203
adamc@1061	4204 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4205 return toupper((int)c);
adamc@1061	4206 }
adamc@1066	4207
adamc@1128	4208 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	4209 return (unsigned char)c;
adamc@1128	4210 }
adamc@1128	4211
adamc@1128	4212 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	4213 return n;
adamc@1128	4214 }
adamc@1128	4215
adamc@1066	4216 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	4217 return ctx->current_url;
adamc@1066	4218 }
adamc@1066	4219
adamc@1066	4220 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	4221 ctx->current_url = s;
adamc@1066	4222 }
adamc@1114	4223
adamc@1114	4224 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	4225 ctx->deadline = n;
adamc@1114	4226 }
adamc@1114	4227
adamc@1114	4228 void uw_check_deadline(uw_context ctx) {
adamc@1114	4229 if (uw_time > ctx->deadline)
adamc@1114	4230 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	4231 }
adamc@1115	4232
adamc@1115	4233 size_t uw_database_max = SIZE_MAX;
adamc@1120	4234
adam@1389	4235 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@1389	4236 fprintf(stderr, "%s\n", s);
adam@1389	4237 return 0;
adam@1389	4238 }
adam@1389	4239
adamc@1120	4240 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
grrwlf@1997	4241 if (ctx->loggers->log_debug)
grrwlf@1997	4242 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@1334	4243 else
adam@1334	4244 fprintf(stderr, "%s\n", s);
adamc@1120	4245 return uw_unit_v;
adamc@1120	4246 }
adamc@1250	4247
adamc@1250	4248 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@2104	4249 int r = my_rand();
adam@2104	4250
adam@2104	4251 if (r >= 0)
adam@2104	4252 return r;
adam@1486	4253 else
adam@1486	4254 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	4255 }
adam@1347	4256
adam@1347	4257 void uw_noPostBody(uw_context ctx) {
adam@1347	4258 ctx->hasPostBody = 0;
adam@1347	4259 }
adam@1347	4260
adam@1347	4261 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	4262 ctx->hasPostBody = 1;
adam@1347	4263 ctx->postBody = pb;
adam@1347	4264 }
adam@1347	4265
adam@1347	4266 int uw_hasPostBody(uw_context ctx) {
adam@1347	4267 return ctx->hasPostBody;
adam@1347	4268 }
adam@1347	4269
adam@1386	4270 void uw_isPost(uw_context ctx) {
adam@1386	4271 ctx->isPost = 1;
adam@1386	4272 }
adam@1386	4273
adam@1386	4274 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4275 return ctx->isPost;
adam@1386	4276 }
adam@1386	4277
adam@1485	4278 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4279 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4280 }
adam@1485	4281
adam@1370	4282 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4283 ctx->queryString = s;
adam@1370	4284 }
adam@1370	4285
adam@1370	4286 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4287 return ctx->queryString;
adam@1370	4288 }
adam@1370	4289
adam@1347	4290 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4291 if (ctx->hasPostBody)
adam@1347	4292 return ctx->postBody;
adam@1347	4293 else
adam@1347	4294 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4295 }
adam@1349	4296
adam@1349	4297 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4298 int r = setjmp(ctx->jmp_buf);
adam@1349	4299
adam@1349	4300 if (r == 0) {
adam@1936	4301 uw_ensure_transaction(ctx);
adam@1418	4302
adam@1349	4303 callback(ctx);
adam@1349	4304 }
adam@1349	4305
adam@1349	4306 return r;
adam@1349	4307 }
adam@1360	4308
adam@1360	4309 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4310 char buf[14];
adam@1397	4311 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4312 }
adam@1365	4313
adam@1365	4314 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4315 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	4316 }
adam@1365	4317
adam@1365	4318 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@2034	4319 return !!(t1.seconds < t2.seconds \|\| (t1.seconds == t2.seconds && t1.microseconds < t2.microseconds));
adam@1365	4320 }
adam@1365	4321
adam@1365	4322 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4323 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4324 }
adam@1365	4325
adam@1372	4326 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4327 struct tm stm = {};
adam@1375	4328 char *end = strchr(s, 0);
adam@1449	4329 stm.tm_isdst = -1;
adam@1375	4330
adam@1632	4331 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4332 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4333
kkallio@1448	4334 r->seconds = timegm(&stm);
adam@1373	4335 r->microseconds = 0;
adam@1373	4336
adam@1373	4337 return r;
adam@1374	4338 }
adam@1374	4339 else
adam@1373	4340 return NULL;
adam@1372	4341 }
adam@1407	4342
adam@1407	4343 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4344 int r = setjmp(ctx->jmp_buf);
adam@1407	4345
adam@1407	4346 if (ctx->app->on_error) {
adam@1407	4347 if (r == 0) {
adam@1936	4348 uw_ensure_transaction(ctx);
adam@1407	4349
adam@1409	4350 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4351 if (on_success[0])
adam@1409	4352 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4353 else
adam@1409	4354 uw_write_header(ctx, "Status: ");
adam@1409	4355 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919	4356 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1956	4357 uw_write(ctx, ctx->app->is_html5 ? uw_begin_html5 : uw_begin_xhtml);
adam@1407	4358 ctx->app->on_error(ctx, msg);
adam@1407	4359 uw_write(ctx, "</html>");
adam@1407	4360 }
adam@1407	4361
adam@1407	4362 return r;
adam@1407	4363 } else
adam@1407	4364 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4365 }
adam@1451	4366
adam@1451	4367 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4368 ctx->allowed_to_return_indirectly = 1;
adam@1451	4369 }
adam@1483	4370
adam@1556	4371 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4372 int len;
adam@1703	4373 char *r;
adam@1703	4374
adam@1703	4375 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4376 r = ctx->heap.front;
adam@1703	4377 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4378 ctx->heap.front += len+1;
adam@1703	4379 return r;
adam@1556	4380 }
adam@1571	4381
adam@1571	4382 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4383 return n;
adam@1571	4384 }
adam@1571	4385
adam@1571	4386 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4387 return ceil(n);
adam@1571	4388 }
adam@1571	4389
adam@1571	4390 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4391 return trunc(n);
adam@1571	4392 }
adam@1571	4393
adam@1571	4394 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4395 return round(n);
adam@1571	4396 }
adam@1755	4397
adam@1755	4398 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755	4399 char *p;
adam@1755	4400
adam@1755	4401 for (p = s; *p; ++p) {
adam@1755	4402 char c = *p;
adam@1801	4403 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755	4404 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4405 }
adam@1755	4406
adam@1755	4407 return s;
adam@1755	4408 }
adam@1755	4409
adam@1755	4410 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4411 char *p;
adam@1755	4412
adam@1755	4413 for (p = s; *p; ++p) {
adam@1755	4414 char c = *p;
adam@1801	4415 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4416 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4417 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4418 }
adam@1755	4419
adam@1755	4420 return s;
adam@1755	4421 }
adam@1755	4422
adam@1755	4423 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4424 char *p;
adam@1755	4425
adam@1755	4426 if (!*s)
adam@1755	4427 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4428
adam@1801	4429 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4430 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4431
adam@1755	4432 for (p = s; *p; ++p) {
adam@1755	4433 char c = *p;
adam@1801	4434 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4435 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4436 }
adam@1755	4437
adam@1755	4438 return s;
adam@1755	4439 }
adam@1787	4440
adam@1787	4441 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4442 return f.name;
adam@1787	4443 }
adam@1787	4444
adam@1787	4445 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4446 return f.value;
adam@1787	4447 }
adam@1787	4448
adam@1787	4449 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4450 return f.remaining;
adam@1787	4451 }
adam@1787	4452
adam@1787	4453 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4454 char *unurl;
adam@1787	4455 uw_Basis_postField *f;
adam@1787	4456
adam@1788	4457 if (!ctx->hasPostBody)
adam@1788	4458 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4459
adam@1788	4460 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4461 return NULL;
adam@1787	4462
adam@1787	4463 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4464 unurl = s;
adam@1787	4465 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4466 s = strchr(s, 0);
adam@1788	4467 if (!s)
adam@1788	4468 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4469 ++s;
adam@1788	4470 unurl = s;
adam@1788	4471 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4472 s = strchr(s, 0);
adam@1788	4473 if (!s)
adam@1788	4474 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4475 f->remaining = s+1;
adam@1787	4476
adam@1787	4477 return f;
adam@1787	4478 }
adam@2008	4479
adam@2008	4480 uw_Basis_string uw_Basis_blessData(uw_context ctx, uw_Basis_string s) {
adam@2008	4481 char *p = s;
adam@2008	4482
adam@2008	4483 for (; *p; ++p)
adam@2008	4484 if (!isalnum(p) && p != '-' && *p != '_')
adam@2008	4485 uw_error(ctx, FATAL, "Illegal HTML5 data-* attribute: %s", s);
adam@2008	4486
adam@2008	4487 return s;
adam@2008	4488 }
adam@2073	4489
adam@2073	4490 int uw_remoteSock(uw_context ctx) {
adam@2073	4491 return ctx->remoteSock;
adam@2073	4492 }
adam@2073	4493
adam@2073	4494 void uw_set_remoteSock(uw_context ctx, int sock) {
adam@2073	4495 ctx->remoteSock = sock;
adam@2073	4496 }

Mercurial > urweb

annotate src/c/urweb.c @ 2229:54884b28b6c6