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

annotate src/c/urweb.c @ 2291:50ad02829abd

Make cache flushes happen immediately instead of at end of transaction.

author	Ziv Scully <ziv@mit.edu>
date	Tue, 17 Nov 2015 02:44:37 -0500
parents	98f96a976ede
children	5104e480b3e3

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
ziv@2234	25 #include "uthash.h"
ziv@2234	26
adam@1431	27 uw_unit uw_unit_v = 0;
adamc@102	28
adamc@667	29
adamc@667	30 // Socket extras
adamc@667	31
adamc@863	32 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667	33 while (len > 0) {
adamc@856	34 ssize_t n = send(sock, buf, len, 0);
adamc@856	35
adamc@856	36 if (n < 0)
adamc@856	37 return n;
adamc@856	38
adamc@856	39 buf += n;
adamc@856	40 len -= n;
adamc@856	41 }
adamc@856	42
adamc@856	43 return 0;
adamc@856	44 }
adamc@856	45
adamc@856	46 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856	47 while (len > 0) {
adamc@856	48 ssize_t n = write(fd, buf, len);
adamc@667	49
adamc@667	50 if (n < 0)
adamc@667	51 return n;
adamc@667	52
adamc@667	53 buf += n;
adamc@667	54 len -= n;
adamc@667	55 }
adamc@667	56
adamc@667	57 return 0;
adamc@667	58 }
adamc@667	59
adamc@667	60
adamc@667	61 // Buffers
adamc@667	62
adam@1369	63 void uw_buffer_init(size_t max, uw_buffer *b, size_t s) {
adamc@1113	64 b->max = max;
adamc@667	65 b->front = b->start = malloc(s);
adamc@667	66 b->back = b->front + s;
adamc@667	67 }
adamc@667	68
adam@1369	69 void uw_buffer_free(uw_buffer *b) {
adamc@667	70 free(b->start);
adamc@667	71 }
adamc@667	72
adam@1369	73 void uw_buffer_reset(uw_buffer *b) {
adamc@667	74 b->front = b->start;
ziv@2262	75 if (b->front != b->back) {
ziv@2262	76 *b->front = 0;
ziv@2262	77 }
adamc@667	78 }
adamc@667	79
adam@1369	80 int uw_buffer_check(uw_buffer *b, size_t extra) {
adamc@667	81 if (b->back - b->front < extra) {
adamc@667	82 size_t desired = b->front - b->start + extra, next;
adamc@667	83 char *new_heap;
adamc@667	84
adamc@667	85 next = b->back - b->start;
adamc@667	86 if (next == 0)
adamc@667	87 next = 1;
adamc@667	88 for (; next < desired; next *= 2);
adamc@667	89
adamc@1134	90 if (next > b->max) {
adamc@1113	91 if (desired <= b->max)
adamc@1113	92 next = desired;
adamc@1113	93 else
adamc@1113	94 return 1;
adamc@1134	95 }
adamc@1113	96
adamc@667	97 new_heap = realloc(b->start, next);
adamc@667	98 b->front = new_heap + (b->front - b->start);
adamc@667	99 b->back = new_heap + next;
adamc@667	100 b->start = new_heap;
adamc@667	101 }
adamc@1113	102
adamc@1113	103 return 0;
adamc@1113	104 }
adamc@1113	105
adamc@1113	106 __attribute__((noreturn)) void uw_error(uw_context, failure_kind, const char *, ...);
adamc@1113	107
adam@1369	108 static void ctx_uw_buffer_check(uw_context ctx, const char kind, uw_buffer b, size_t extra) {
adam@1369	109 if (uw_buffer_check(b, extra))
adamc@1113	110 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@667	111 }
adamc@667	112
adam@1369	113 size_t uw_buffer_used(uw_buffer *b) {
adamc@667	114 return b->front - b->start;
adamc@667	115 }
adamc@667	116
adam@1369	117 size_t uw_buffer_avail(uw_buffer *b) {
adamc@667	118 return b->back - b->start;
adamc@667	119 }
adamc@667	120
adam@1369	121 int uw_buffer_append(uw_buffer b, const char s, size_t len) {
adam@1369	122 if (uw_buffer_check(b, len+1))
adamc@1113	123 return 1;
adamc@1113	124
adamc@1113	125 memcpy(b->front, s, len);
adamc@1113	126 b->front += len;
adamc@1113	127 *b->front = 0;
adamc@1113	128
adamc@1113	129 return 0;
adamc@1113	130 }
adamc@1113	131
adam@1369	132 static void ctx_uw_buffer_append(uw_context ctx, const char kind, uw_buffer b, const char *s, size_t len) {
adam@1369	133 ctx_uw_buffer_check(ctx, kind, b, len+1);
adamc@1113	134
adamc@668	135 memcpy(b->front, s, len);
adamc@668	136 b->front += len;
adamc@672	137 *b->front = 0;
adamc@668	138 }
adamc@667	139
adamc@668	140
adamc@672	141 // Persistent state types
adamc@667	142
adamc@667	143 typedef enum { UNUSED, USED } usage;
adamc@667	144
adamc@667	145 typedef struct client {
adamc@682	146 unsigned id;
adamc@667	147 usage mode;
adamc@682	148 int pass;
adamc@682	149 struct client *next;
adamc@689	150 pthread_mutex_t lock, pull_lock;
adam@1369	151 uw_buffer msgs;
adamc@682	152 int sock;
adamc@863	153 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	154 int (*close)(int fd);
adamc@682	155 time_t last_contact;
adamc@682	156 unsigned n_channels;
adamc@685	157 unsigned refcount;
adamc@1121	158 void *data;
adamc@667	159 } client;
adamc@667	160
adamc@672	161
adamc@672	162 // Persistent client state
adamc@672	163
adamc@682	164 static client *clients, clients_free, *clients_used;
adamc@682	165 static unsigned n_clients;
adamc@667	166
adam@1707	167 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@1113	168 size_t uw_messages_max = SIZE_MAX;
adamc@1113	169 size_t uw_clients_max = SIZE_MAX;
adamc@1113	170
adamc@1121	171 void *uw_init_client_data();
adamc@1121	172 void uw_free_client_data(void *);
adamc@1121	173 void uw_copy_client_data(void dst, void src);
adamc@1121	174
adam@2104	175 static uw_Basis_int my_rand() {
adam@2105	176 int ret, r = RAND_bytes((unsigned char *)&ret, sizeof ret);
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();
ziv@2288	369
ziv@2288	370 // Fast non-cryptographic strength randomness for Sqlcache.
ziv@2288	371 srandom(clock());
adamc@1094	372 }
adamc@1094	373
adamc@1094	374 void uw_app_init(uw_app *app) {
adamc@1094	375 app->client_init();
adamc@668	376 }
adamc@668	377
adam@1332	378 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114	379
adamc@668	380
adamc@667	381 // Single-request state
adamc@667	382
adamc@323	383 typedef struct regions {
adamc@323	384 struct regions *next;
adamc@323	385 } regions;
adamc@323	386
adamc@425	387 typedef struct {
adamc@425	388 void (func)(void);
adamc@425	389 void *arg;
adamc@425	390 } cleanup;
adamc@425	391
adamc@671	392 typedef struct {
adamc@682	393 unsigned client;
adam@1369	394 uw_buffer msgs;
adamc@682	395 } delta;
adamc@671	396
adamc@737	397 typedef enum {
adamc@759	398 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	399 } input_kind;
adamc@737	400
adamc@756	401 typedef struct input {
adamc@737	402 input_kind kind;
adamc@737	403 union {
adamc@737	404 char *normal;
adamc@739	405 uw_Basis_file file;
adamc@756	406 struct {
adamc@759	407 struct input fields, parent;
adamc@756	408 } subform;
adamc@759	409 struct {
adamc@759	410 struct input entries, parent;
adamc@759	411 } subforms;
adamc@759	412 struct {
adamc@759	413 struct input fields, next, *parent;
adamc@759	414 } entry;
adamc@737	415 } data;
adamc@737	416 } input;
adamc@737	417
adamc@771	418 typedef struct {
adamc@771	419 void *data;
adam@1327	420 uw_callback commit, rollback;
adam@1327	421 uw_callback_with_retry free;
adamc@771	422 } transactional;
adamc@771	423
adamc@1061	424 typedef struct {
adamc@1061	425 char *name;
adamc@1061	426 void *data;
adamc@1061	427 void (free)(void);
adamc@1061	428 } global;
adamc@1061	429
ziv@2285	430 typedef struct uw_Sqlcache_Update {
ziv@2282	431 uw_Sqlcache_Cache *cache;
ziv@2282	432 char **keys;
ziv@2285	433 uw_Sqlcache_Value *value;
ziv@2285	434 struct uw_Sqlcache_Update *next;
ziv@2285	435 } uw_Sqlcache_Update;
ziv@2282	436
ziv@2288	437 typedef struct uw_Sqlcache_Unlock {
ziv@2288	438 pthread_rwlock_t *lock;
ziv@2288	439 struct uw_Sqlcache_Unlock *next;
ziv@2288	440 } uw_Sqlcache_Unlock;
ziv@2288	441
adamc@311	442 struct uw_context {
adamc@1094	443 uw_app *app;
adam@1446	444 int id;
adamc@1094	445
adamc@854	446 char (get_header)(void , const char );
adamc@854	447 void *get_header_data;
adamc@457	448
adam@1799	449 char (get_env)(void , const char );
adam@1799	450 void *get_env_data;
adam@1799	451
adam@1369	452 uw_buffer outHeaders, page, heap, script;
adam@1451	453 int allowed_to_return_indirectly, returning_indirectly;
adamc@759	454 input inputs, subinputs, *cur_container;
adamc@1094	455 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	456
adam@1446	457 unsigned long long source_count;
adamc@562	458
adamc@272	459 void *db;
adam@1931	460 int transaction_started;
adamc@272	461
adamc@167	462 jmp_buf jmp_buf;
adamc@167	463
adamc@323	464 regions *regions;
adamc@323	465
adamc@425	466 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	467
adamc@1094	468 const char *script_header;
adamc@643	469
adam@2056	470 int needs_push, needs_sig, could_write_db, at_most_one_query;
adamc@693	471
adamc@682	472 size_t n_deltas, used_deltas;
adamc@682	473 delta *deltas;
adamc@671	474
adamc@682	475 client *client;
adamc@682	476
adamc@771	477 transactional *transactionals;
adamc@771	478 size_t n_transactionals, used_transactionals;
adamc@771	479
adamc@1061	480 global *globals;
adamc@1061	481 size_t n_globals;
adamc@1061	482
adamc@1066	483 char *current_url;
adamc@1066	484
adamc@1114	485 int deadline;
adamc@1114	486
adamc@1121	487 void *client_data;
adamc@1121	488
grrwlf@1997	489 uw_loggers *loggers;
adam@1334	490
adam@1386	491 int isPost, hasPostBody;
adam@1347	492 uw_Basis_postBody postBody;
adam@1370	493 uw_Basis_string queryString;
adam@1347	494
adam@1556	495 unsigned nextId;
adam@1556	496
adam@1782	497 int amInitializing;
adam@1782	498
adamc@167	499 char error_message[ERROR_BUF_LEN];
adam@1877	500
adam@1877	501 int usedSig, needsResig;
adam@1949	502
adam@1949	503 char *output_buffer;
adam@1949	504 size_t output_buffer_size;
adam@2073	505
ziv@2281	506 // Sqlcache.
ziv@2262	507 int numRecording;
ziv@2262	508 int recordingOffset;
ziv@2285	509 uw_Sqlcache_Update *cacheUpdate;
ziv@2285	510 uw_Sqlcache_Update *cacheUpdateTail;
ziv@2288	511 uw_Sqlcache_Unlock *cacheUnlock;
ziv@2220	512
adam@2073	513 int remoteSock;
adamc@117	514 };
adamc@117	515
adamc@1113	516 size_t uw_headers_max = SIZE_MAX;
adamc@1113	517 size_t uw_page_max = SIZE_MAX;
adamc@1113	518 size_t uw_heap_max = SIZE_MAX;
adamc@1113	519 size_t uw_script_max = SIZE_MAX;
adamc@1113	520
grrwlf@1997	521 uw_context uw_init(int id, uw_loggers *lg) {
ziv@2285	522 puts("Initializing");
adamc@311	523 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	524
adamc@1094	525 ctx->app = NULL;
adam@1446	526 ctx->id = id;
adamc@1094	527
adamc@854	528 ctx->get_header = NULL;
adamc@854	529 ctx->get_header_data = NULL;
adamc@457	530
adam@1799	531 ctx->get_env = NULL;
adam@1799	532 ctx->get_env_data = NULL;
adam@1799	533
adam@1413	534 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413	535 ctx->outHeaders.start[0] = 0;
adam@1413	536 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413	537 ctx->page.start[0] = 0;
adam@1451	538 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	539 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369	540 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667	541 ctx->script.start[0] = 0;
adamc@136	542
adamc@1094	543 ctx->inputs = malloc(0);
adamc@759	544 ctx->cur_container = NULL;
adamc@756	545 ctx->subinputs = malloc(0);
adamc@1094	546 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	547
adamc@272	548 ctx->db = NULL;
adam@1931	549 ctx->transaction_started = 0;
adamc@272	550
adamc@323	551 ctx->regions = NULL;
adamc@323	552
adamc@425	553 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	554
adamc@643	555 ctx->script_header = "";
adamc@693	556 ctx->needs_push = 0;
adamc@736	557 ctx->needs_sig = 0;
adam@1936	558 ctx->could_write_db = 1;
adam@2056	559 ctx->at_most_one_query = 0;
adamc@1104	560
adamc@565	561 ctx->source_count = 0;
adamc@562	562
adamc@682	563 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	564 ctx->deltas = malloc(0);
adamc@671	565
adamc@700	566 ctx->client = NULL;
adamc@700	567
adamc@700	568 ctx->error_message[0] = 0;
adamc@700	569
adamc@771	570 ctx->transactionals = malloc(0);
adamc@771	571 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	572
adamc@1061	573 ctx->globals = malloc(0);
adamc@1061	574 ctx->n_globals = 0;
adamc@1061	575
adamc@1066	576 ctx->current_url = "";
adamc@1066	577
adamc@1114	578 ctx->deadline = INT_MAX;
adamc@1114	579
adamc@1121	580 ctx->client_data = uw_init_client_data();
adamc@1121	581
grrwlf@1997	582 ctx->loggers = lg;
adam@1334	583
adam@1386	584 ctx->isPost = ctx->hasPostBody = 0;
adam@1347	585
adam@1370	586 ctx->queryString = NULL;
adam@1370	587
adam@1556	588 ctx->nextId = 0;
adam@1556	589
adam@1782	590 ctx->amInitializing = 0;
adam@1782	591
adam@1877	592 ctx->usedSig = 0;
adam@1877	593 ctx->needsResig = 0;
adam@1877	594
adam@1949	595 ctx->output_buffer = malloc(1);
adam@1949	596 ctx->output_buffer_size = 1;
adam@1949	597
ziv@2262	598 ctx->numRecording = 0;
ziv@2262	599 ctx->recordingOffset = 0;
ziv@2285	600 ctx->cacheUpdate = NULL;
ziv@2285	601 ctx->cacheUpdateTail = NULL;
ziv@2204	602
adam@2073	603 ctx->remoteSock = -1;
adam@2073	604
adamc@117	605 return ctx;
adamc@106	606 }
adamc@106	607
adamc@1113	608 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	609
adamc@1121	610 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	611 return ctx->app;
adamc@1121	612 }
adamc@1121	613
adamc@1113	614 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	615 ctx->app = app;
adamc@1094	616
adamc@1105	617 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	618 if (app->inputs_len > uw_inputs_max)
adamc@1113	619 return 1;
adamc@1113	620
adamc@1094	621 ctx->sz_inputs = app->inputs_len;
adamc@1094	622 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	623 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	624 }
adamc@1134	625
adamc@1134	626 return 0;
adamc@1094	627 }
adamc@1094	628
adamc@1121	629 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	630 uw_copy_client_data(ctx->client_data, data);
adamc@1121	631 }
adamc@1121	632
adamc@311	633 void uw_set_db(uw_context ctx, void *db) {
adamc@272	634 ctx->db = db;
adamc@272	635 }
adamc@272	636
adamc@311	637 void *uw_get_db(uw_context ctx) {
adamc@272	638 return ctx->db;
adamc@272	639 }
adamc@272	640
grrwlf@1997	641
grrwlf@1997	642 uw_loggers* uw_get_loggers(struct uw_context *ctx) {
grrwlf@1997	643 return ctx->loggers;
grrwlf@1997	644 }
grrwlf@1997	645
adamc@311	646 void uw_free(uw_context ctx) {
adamc@671	647 size_t i;
adamc@671	648
adam@1369	649 uw_buffer_free(&ctx->outHeaders);
adam@1369	650 uw_buffer_free(&ctx->script);
adam@1369	651 uw_buffer_free(&ctx->page);
adam@1369	652 uw_buffer_free(&ctx->heap);
adamc@144	653 free(ctx->inputs);
adamc@756	654 free(ctx->subinputs);
adamc@425	655 free(ctx->cleanup);
adamc@771	656 free(ctx->transactionals);
adamc@1121	657 uw_free_client_data(ctx->client_data);
adamc@671	658
adamc@682	659 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	660 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	661 free(ctx->deltas);
adamc@671	662
adamc@1061	663 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	664 if (ctx->globals[i].free)
adamc@1089	665 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	666 free(ctx->globals);
adamc@1061	667
adam@1949	668 free(ctx->output_buffer);
adam@1949	669
adamc@136	670 free(ctx);
adamc@136	671 }
adamc@136	672
adamc@562	673 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	674 uw_buffer_reset(&ctx->outHeaders);
adam@1369	675 uw_buffer_reset(&ctx->script);
adamc@667	676 ctx->script.start[0] = 0;
adam@1369	677 uw_buffer_reset(&ctx->page);
adam@1451	678 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	679 uw_buffer_reset(&ctx->heap);
adamc@323	680 ctx->regions = NULL;
adamc@425	681 ctx->cleanup_front = ctx->cleanup;
adamc@682	682 ctx->used_deltas = 0;
adamc@682	683 ctx->client = NULL;
adamc@759	684 ctx->cur_container = NULL;
adamc@771	685 ctx->used_transactionals = 0;
adamc@1117	686 ctx->script_header = "";
adam@1370	687 ctx->queryString = NULL;
adam@1556	688 ctx->nextId = 0;
adam@1782	689 ctx->amInitializing = 0;
adam@1877	690 ctx->usedSig = 0;
adam@1877	691 ctx->needsResig = 0;
adam@2073	692 ctx->remoteSock = -1;
adamc@167	693 }
adamc@167	694
adamc@562	695 void uw_reset_keep_request(uw_context ctx) {
adamc@562	696 uw_reset_keep_error_message(ctx);
adamc@562	697 ctx->error_message[0] = 0;
adamc@167	698 }
adamc@167	699
adamc@311	700 void uw_reset(uw_context ctx) {
adamc@311	701 uw_reset_keep_request(ctx);
adamc@1105	702 if (ctx->app)
adamc@1105	703 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	704 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461	705 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adam@1943	706 ctx->transaction_started = 0;
adamc@144	707 }
adamc@144	708
adamc@311	709 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	710 int r = setjmp(ctx->jmp_buf);
adamc@272	711
adamc@1105	712 if (r == 0 && ctx->app)
adamc@1094	713 ctx->app->db_init(ctx);
adamc@272	714
adamc@272	715 return r;
adamc@272	716 }
adamc@272	717
adamc@1118	718 void uw_close(uw_context ctx) {
adamc@1118	719 ctx->app->db_close(ctx);
adamc@1118	720 }
adamc@1118	721
adam@1446	722 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	723 return ctx->get_header(ctx->get_header_data, h);
adam@1446	724 }
adam@1446	725
adamc@854	726 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	727 ctx->get_header = get_header;
adamc@854	728 ctx->get_header_data = get_header_data;
adamc@742	729 }
adamc@742	730
adam@1799	731 void uw_set_env(uw_context ctx, char (get_env)(void , const char ), void *get_env_data) {
adam@1799	732 ctx->get_env = get_env;
adam@1799	733 ctx->get_env_data = get_env_data;
adam@1799	734 }
adam@1799	735
adamc@801	736 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	737 va_list ap;
adamc@801	738 va_start(ap, fmt);
adamc@801	739
adamc@801	740 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	741 }
adamc@801	742
adamc@1131	743 int uw_has_error(uw_context ctx) {
adamc@1131	744 return ctx->error_message[0] != 0;
adamc@1131	745 }
adamc@1131	746
adamc@311	747 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	748 cleanup *cl;
adamc@425	749
adamc@167	750 va_list ap;
adamc@167	751 va_start(ap, fmt);
adamc@167	752
adamc@167	753 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	754
adamc@425	755 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	756 cl->func(cl->arg);
adamc@425	757
adamc@425	758 ctx->cleanup_front = ctx->cleanup;
adamc@425	759
adamc@190	760 longjmp(ctx->jmp_buf, fk);
adamc@167	761 }
adamc@167	762
adamc@1113	763 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	764
adamc@425	765 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	766 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	767 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	768 if (len == 0)
adamc@425	769 newLen = 1;
adamc@425	770 else
adamc@428	771 newLen = len * 2;
adamc@1113	772
adamc@1134	773 if (newLen > uw_cleanup_max) {
adamc@1113	774 if (len+1 <= uw_cleanup_max)
adamc@1113	775 newLen = uw_cleanup_max;
adamc@1113	776 else
adamc@1113	777 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	778 }
adamc@1113	779
adamc@470	780 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	781 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	782 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	783 }
adamc@425	784
adamc@425	785 ctx->cleanup_front->func = func;
adamc@425	786 ctx->cleanup_front->arg = arg;
adamc@425	787 ++ctx->cleanup_front;
adamc@425	788 }
adamc@425	789
adam@1444	790 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	791
adamc@682	792 void uw_login(uw_context ctx) {
adam@1942	793 char id_s, pass_s;
adam@1942	794
adam@1942	795 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adam@1942	796 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adam@1942	797 unsigned id = atoi(id_s);
adam@1942	798 int pass = atoi(pass_s);
adam@1942	799 client *c = find_client(id);
adam@1942	800
adam@1942	801 if (c == NULL)
adam@1942	802 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	803 else {
adamc@685	804 use_client(c);
adamc@682	805 ctx->client = c;
adam@1942	806
adam@1942	807 if (c->mode != USED)
adam@1942	808 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adam@1942	809 if (c->pass != pass)
adam@1942	810 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@864	811 }
adam@1942	812 } else if (ctx->needs_push) {
adam@1942	813 client *c = new_client();
adam@1942	814
adam@1942	815 if (c == NULL)
adam@1942	816 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adam@1942	817
adam@1942	818 use_client(c);
adam@1942	819 uw_copy_client_data(c->data, ctx->client_data);
adam@1942	820 ctx->client = c;
adamc@682	821 }
adamc@682	822 }
adamc@682	823
adamc@671	824 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	825 int r = setjmp(ctx->jmp_buf);
adamc@671	826
adam@1931	827 if (r == 0)
adam@1931	828 ctx->app->handle(ctx, path);
adam@1931	829
adam@1931	830 return r;
adam@1931	831 }
adam@1931	832
adam@2176	833 static void uw_try_reconnecting(uw_context ctx) {
adam@2176	834 // Hm, error starting transaction.
adam@2176	835 // Maybe the database server died but has since come back up.
adam@2176	836 // Let's try starting from scratch.
adam@2176	837 if (ctx->db) {
adam@2176	838 ctx->app->db_close(ctx);
adam@2176	839 ctx->db = NULL;
adam@2176	840 }
adam@2176	841 ctx->app->db_init(ctx);
adam@2176	842 }
adam@2176	843
adam@2177	844 void uw_try_reconnecting_and_restarting(uw_context ctx) {
adam@2177	845 uw_try_reconnecting(ctx);
adam@2178	846 uw_error(ctx, BOUNDED_RETRY, "Restarting transaction after fixing database connection");
adam@2176	847 }
adam@2176	848
adam@1931	849 void uw_ensure_transaction(uw_context ctx) {
adam@2056	850 if (!ctx->transaction_started && !ctx->at_most_one_query) {
adam@2176	851 if (!ctx->db \|\| ctx->app->db_begin(ctx, ctx->could_write_db)) {
adam@2176	852 uw_try_reconnecting(ctx);
adam@2176	853
adam@2176	854 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adam@2176	855 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adam@2176	856 }
adam@2176	857
adam@1931	858 ctx->transaction_started = 1;
adam@2178	859 } else if (ctx->at_most_one_query && !ctx->db)
adam@2178	860 uw_try_reconnecting(ctx);
adamc@671	861 }
adamc@671	862
adamc@772	863 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	864 if (ctx->client == NULL)
adamc@682	865 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	866
adamc@682	867 return ctx->client->id;
adamc@682	868 }
adamc@682	869
adamc@425	870 void uw_pop_cleanup(uw_context ctx) {
adamc@425	871 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	872 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	873
adamc@425	874 --ctx->cleanup_front;
adamc@425	875 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	876 }
adamc@425	877
adamc@311	878 char *uw_error_message(uw_context ctx) {
adamc@167	879 return ctx->error_message;
adamc@167	880 }
adamc@167	881
adamc@1115	882 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	883 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	884 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	885 }
adamc@1115	886
adamc@759	887 static input *INP(uw_context ctx) {
adamc@759	888 if (ctx->cur_container == NULL)
adamc@759	889 return ctx->inputs;
adamc@759	890 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	891 return ctx->cur_container->data.subform.fields;
adamc@759	892 else if (ctx->cur_container->kind == ENTRY)
adamc@759	893 return ctx->cur_container->data.entry.fields;
adamc@759	894 else
adamc@760	895 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	896 }
adamc@759	897
adamc@760	898 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	899 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	900 *ptr += new_start - old_start;
adamc@760	901 }
adamc@760	902
adamc@760	903 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	904 switch (x->kind) {
adamc@759	905 case SUBFORM:
adamc@760	906 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	907 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	908 break;
adamc@759	909 case SUBFORMS:
adamc@760	910 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	911 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	912 break;
adamc@759	913 case ENTRY:
adamc@760	914 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	915 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	916 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	917 break;
adamc@1134	918 default:
adamc@1134	919 break;
phurst@1981	920 }
adamc@759	921 }
adamc@759	922
adamc@1113	923 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	924
adamc@759	925 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	926 size_t i;
adamc@759	927 input *r;
adamc@759	928
adamc@759	929 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	930 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	931 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	932
adamc@759	933 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	934
adamc@760	935 if (ctx->subinputs != new_subinputs) {
adamc@760	936 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	937 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	938 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	939 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	940
adamc@760	941 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	942
adamc@760	943 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	944 ctx->subinputs = new_subinputs;
adamc@760	945 }
adamc@759	946 }
adamc@759	947
adamc@759	948 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	949
adamc@759	950 for (i = 0; i < len; ++i)
adam@1474	951 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	952
adamc@759	953 return r;
adamc@759	954 }
adamc@756	955
adamc@801	956 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	957 //printf("Input name %s\n", name);
adamc@1038	958
adamc@756	959 if (!strcasecmp(name, ".b")) {
adamc@1094	960 int n = ctx->app->input_num(value);
adamc@756	961 input *inps;
adamc@756	962
adamc@801	963 if (n < 0) {
adam@1444	964 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	965 return -1;
adamc@801	966 }
adamc@801	967
adamc@1094	968 if (n >= ctx->app->inputs_len) {
adam@1444	969 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	970 return -1;
adamc@801	971 }
adamc@756	972
adamc@1094	973 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	974
adamc@759	975 INP(ctx)[n].kind = SUBFORM;
adamc@759	976 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	977 INP(ctx)[n].data.subform.fields = inps;
adamc@759	978 ctx->cur_container = &INP(ctx)[n];
adamc@756	979 } else if (!strcasecmp(name, ".e")) {
adamc@756	980 input *tmp;
adamc@756	981
adamc@801	982 if (ctx->cur_container == NULL) {
adamc@801	983 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	984 return -1;
adamc@801	985 }
adamc@756	986
adamc@759	987 tmp = ctx->cur_container;
adamc@759	988 switch (tmp->kind) {
adamc@759	989 case SUBFORM:
adamc@759	990 ctx->cur_container = tmp->data.subform.parent;
adamc@759	991 tmp->data.subform.parent = NULL;
adamc@759	992 break;
adamc@759	993 case SUBFORMS:
adamc@759	994 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	995 tmp->data.subforms.parent = NULL;
adamc@759	996 break;
adamc@759	997 case ENTRY:
adamc@759	998 ctx->cur_container = tmp->data.entry.parent;
adamc@759	999 break;
adamc@759	1000 default:
adamc@801	1001 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	1002 return -1;
adamc@759	1003 }
adamc@759	1004 } else if (!strcasecmp(name, ".s")) {
adamc@1094	1005 int n = ctx->app->input_num(value);
adamc@759	1006
adamc@801	1007 if (n < 0) {
adam@1444	1008 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	1009 return -1;
adamc@801	1010 }
adamc@801	1011
adamc@1094	1012 if (n >= ctx->app->inputs_len) {
adam@1444	1013 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	1014 return -1;
adamc@801	1015 }
adamc@759	1016
adamc@759	1017 INP(ctx)[n].kind = SUBFORMS;
adamc@759	1018 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1019 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	1020 ctx->cur_container = &INP(ctx)[n];
adamc@759	1021 } else if (!strcasecmp(name, ".i")) {
adamc@759	1022 input *inps;
adamc@759	1023
adamc@801	1024 if (!ctx->cur_container) {
adamc@801	1025 uw_set_error(ctx, "New entry without container");
adamc@801	1026 return -1;
adamc@801	1027 }
adamc@801	1028
adamc@801	1029 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	1030 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	1031 return -1;
adamc@801	1032 }
adamc@759	1033
adamc@1094	1034 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	1035
adamc@759	1036 inps->kind = ENTRY;
adamc@759	1037 inps->data.entry.parent = ctx->cur_container;
adamc@759	1038 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	1039 ctx->cur_container->data.subforms.entries = inps;
adamc@759	1040
adamc@759	1041 inps->data.entry.fields = inps+1;
adamc@759	1042 ctx->cur_container = inps;
adamc@756	1043 } else {
adamc@1094	1044 int n = ctx->app->input_num(name);
adamc@756	1045
adam@1384	1046 if (n < 0)
adam@1384	1047 return 0;
adamc@801	1048
adamc@1094	1049 if (n >= ctx->app->inputs_len) {
adam@1444	1050 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	1051 return -1;
adamc@801	1052 }
adamc@756	1053
adamc@756	1054 INP(ctx)[n].kind = NORMAL;
adamc@756	1055 INP(ctx)[n].data.normal = value;
adamc@756	1056 }
adamc@801	1057
adamc@801	1058 return 0;
adamc@144	1059 }
adamc@144	1060
adamc@311	1061 char *uw_get_input(uw_context ctx, int n) {
adamc@169	1062 if (n < 0)
adamc@311	1063 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1064 if (n >= ctx->app->inputs_len)
adamc@311	1065 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1066
adamc@756	1067 switch (INP(ctx)[n].kind) {
adamc@737	1068 case UNSET:
adamc@737	1069 return NULL;
adamc@739	1070 case FIL:
adamc@739	1071 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1072 case SUBFORM:
adamc@756	1073 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1074 case SUBFORMS:
adamc@759	1075 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1076 case ENTRY:
adamc@759	1077 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1078 case NORMAL:
adamc@756	1079 return INP(ctx)[n].data.normal;
adamc@737	1080 default:
adamc@737	1081 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1082 }
adamc@138	1083 }
adamc@138	1084
adamc@311	1085 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	1086 if (n < 0)
adamc@311	1087 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1088 if (n >= ctx->app->inputs_len)
adamc@311	1089 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1090
adamc@756	1091 switch (INP(ctx)[n].kind) {
adamc@737	1092 case UNSET:
adamc@737	1093 return "";
adamc@739	1094 case FIL:
adamc@739	1095 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1096 case SUBFORM:
adamc@756	1097 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1098 case SUBFORMS:
adamc@759	1099 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1100 case ENTRY:
adamc@759	1101 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1102 case NORMAL:
adamc@756	1103 return INP(ctx)[n].data.normal;
adamc@737	1104 default:
adamc@737	1105 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1106 }
adamc@737	1107 }
adamc@737	1108
adamc@801	1109 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1110 int n = ctx->app->input_num(name);
adamc@737	1111
adamc@801	1112 if (n < 0) {
adam@2054	1113 uw_set_error(ctx, "Bad file input name");
adamc@801	1114 return -1;
adamc@801	1115 }
adamc@801	1116
adamc@1094	1117 if (n >= ctx->app->inputs_len) {
adam@2054	1118 uw_set_error(ctx, "For file input name, index %d is out of range", n);
adamc@801	1119 return -1;
adamc@801	1120 }
adamc@737	1121
adamc@739	1122 ctx->inputs[n].kind = FIL;
adamc@739	1123 ctx->inputs[n].data.file = f;
adamc@801	1124
adamc@801	1125 return 0;
adamc@737	1126 }
adamc@737	1127
adamc@739	1128 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1129
adamc@739	1130 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1131 if (n < 0)
adamc@737	1132 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1133 if (n >= ctx->app->inputs_len)
adamc@737	1134 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1135
adamc@756	1136 switch (INP(ctx)[n].kind) {
adamc@737	1137 case UNSET:
adamc@737	1138 {
adamc@739	1139 char *data = uw_malloc(ctx, 0);
adamc@740	1140 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1141 return f;
adamc@737	1142 }
adamc@739	1143 case FIL:
adamc@756	1144 return INP(ctx)[n].data.file;
adamc@737	1145 case NORMAL:
adamc@737	1146 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1147 case SUBFORM:
adamc@756	1148 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1149 case SUBFORMS:
adamc@759	1150 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1151 case ENTRY:
adamc@759	1152 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1153 default:
adamc@737	1154 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1155 }
adamc@190	1156 }
adamc@190	1157
adamc@756	1158 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1159 if (n < 0)
adamc@756	1160 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1161 if (n >= ctx->app->inputs_len)
adamc@756	1162 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1163
adamc@756	1164 switch (INP(ctx)[n].kind) {
adamc@756	1165 case UNSET:
adamc@756	1166 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1167 case FIL:
adamc@756	1168 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1169 case NORMAL:
adamc@756	1170 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1171 case SUBFORMS:
adamc@759	1172 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1173 case ENTRY:
adamc@759	1174 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1175 case SUBFORM:
adamc@759	1176 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1177 ctx->cur_container = &INP(ctx)[n];
adamc@756	1178 return;
adamc@756	1179 default:
adamc@756	1180 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1181 }
adamc@756	1182 }
adamc@756	1183
adamc@756	1184 void uw_leave_subform(uw_context ctx) {
adamc@756	1185 input *tmp;
adamc@756	1186
adamc@759	1187 if (ctx->cur_container == NULL)
adamc@756	1188 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1189
adamc@759	1190 tmp = ctx->cur_container;
adamc@759	1191 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1192 tmp->data.subform.parent = NULL;
adamc@759	1193 }
adamc@759	1194
adamc@759	1195 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1196 input *inps;
adamc@759	1197
adamc@759	1198 if (n < 0)
adamc@759	1199 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1200 if (n >= ctx->app->inputs_len)
adamc@759	1201 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1202
adamc@759	1203 switch (INP(ctx)[n].kind) {
adamc@759	1204 case UNSET:
adamc@759	1205 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1206 case FIL:
adamc@759	1207 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1208 case NORMAL:
adamc@759	1209 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1210 case SUBFORM:
adamc@759	1211 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1212 case ENTRY:
adamc@759	1213 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1214 case SUBFORMS:
adamc@759	1215 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1216 if (inps) {
adamc@759	1217 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1218 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1219 return 1;
adamc@759	1220 } else
adamc@759	1221 return 0;
adamc@759	1222 default:
adamc@759	1223 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1224 }
adamc@759	1225 }
adamc@759	1226
adamc@759	1227 int uw_next_entry(uw_context ctx) {
adamc@759	1228 if (ctx->cur_container == NULL)
adamc@759	1229 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1230
adamc@759	1231 switch (ctx->cur_container->kind) {
adamc@759	1232 case UNSET:
adamc@759	1233 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1234 case FIL:
adamc@759	1235 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1236 case NORMAL:
adamc@759	1237 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1238 case SUBFORM:
adamc@759	1239 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1240 case SUBFORMS:
adamc@759	1241 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1242 case ENTRY:
adamc@759	1243 if (ctx->cur_container->data.entry.next) {
adamc@759	1244 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1245 return 1;
adamc@759	1246 } else {
adamc@759	1247 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1248 return 0;
adamc@759	1249 }
adamc@759	1250 default:
adamc@759	1251 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1252 }
adamc@756	1253 }
adamc@756	1254
adamc@643	1255 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1256 ctx->script_header = s;
adamc@643	1257 }
adamc@643	1258
adamc@1094	1259 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1260 return ctx->app->url_prefix;
adamc@667	1261 }
adamc@667	1262
adamc@693	1263 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1264 ctx->needs_push = n;
adamc@693	1265 }
adamc@693	1266
adamc@736	1267 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1268 ctx->needs_sig = n;
adamc@736	1269 }
adamc@736	1270
adam@1936	1271 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936	1272 ctx->could_write_db = n;
adam@1936	1273 }
adam@1936	1274
adam@2056	1275 void uw_set_at_most_one_query(uw_context ctx, int n) {
adam@2056	1276 ctx->at_most_one_query = n;
adam@2056	1277 }
adam@2056	1278
adamc@667	1279
adam@1369	1280 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1281 if (b->back - b->front < extra) {
adamc@666	1282 size_t desired = b->front - b->start + extra, next;
adamc@136	1283 char *new_heap;
adamc@136	1284
adamc@666	1285 next = b->back - b->start;
adamc@317	1286 if (next == 0)
adamc@317	1287 next = 1;
adamc@317	1288 for (; next < desired; next *= 2);
adamc@136	1289
adamc@1134	1290 if (next > b->max) {
adamc@1113	1291 if (desired <= b->max)
adamc@1113	1292 next = desired;
adamc@1113	1293 else
adamc@1113	1294 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1295 }
adamc@1113	1296
adamc@666	1297 new_heap = realloc(b->start, next);
adamc@666	1298 b->front = new_heap + (b->front - b->start);
adamc@666	1299 b->back = new_heap + next;
adamc@136	1300
adamc@667	1301 if (new_heap != b->start) {
adamc@666	1302 b->start = new_heap;
adam@1389	1303 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1304 }
adamc@136	1305
adamc@666	1306 b->start = new_heap;
adamc@136	1307 }
adamc@136	1308 }
adamc@136	1309
adamc@832	1310 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1311 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1312 }
adamc@666	1313
adamc@832	1314 char *uw_heap_front(uw_context ctx) {
adamc@832	1315 return ctx->heap.front;
adamc@832	1316 }
adamc@832	1317
adamc@832	1318 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1319 ctx->heap.front = fr;
adamc@832	1320 }
adamc@832	1321
adam@1782	1322 void uw_begin_initializing(uw_context ctx) {
adam@1782	1323 ctx->amInitializing = 1;
adam@1782	1324 }
adam@1782	1325
adam@1782	1326 void uw_end_initializing(uw_context ctx) {
adam@1782	1327 ctx->amInitializing = 0;
adam@1782	1328 }
adam@1782	1329
adam@2013	1330 static void align_heap(uw_context ctx) {
adam@2013	1331 size_t posn = ctx->heap.front - ctx->heap.start;
adam@2013	1332
adam@2017	1333 if (posn % sizeof(void *) != 0) {
adam@2017	1334 size_t bump = sizeof(void ) - posn % sizeof(void );
adam@2013	1335 uw_check_heap(ctx, bump);
adam@2013	1336 ctx->heap.front += bump;
adam@2013	1337 }
adam@2013	1338 }
adam@2013	1339
adamc@311	1340 void *uw_malloc(uw_context ctx, size_t len) {
adam@2013	1341 // On some architectures, it's important that all word-sized memory accesses
adam@2013	1342 // be to word-aligned addresses, so we'll do a little bit of extra work here
adam@2013	1343 // in anticipation of a possible word-aligned access to the address we'll
adam@2013	1344 // return.
adam@2013	1345
adamc@136	1346 void *result;
adamc@136	1347
adam@1782	1348 if (ctx->amInitializing) {
adam@2017	1349 int error = posix_memalign(&result, sizeof(void *), len);
adam@2013	1350
adam@2013	1351 if (!error)
adam@1782	1352 return result;
adam@1782	1353 else
adam@2013	1354 uw_error(ctx, FATAL, "uw_malloc: posix_memalign() returns %d", error);
adam@1782	1355 } else {
adam@2013	1356 align_heap(ctx);
adam@2013	1357
adam@1782	1358 uw_check_heap(ctx, len);
adam@1782	1359
adam@1782	1360 result = ctx->heap.front;
adam@1782	1361 ctx->heap.front += len;
adam@1782	1362 return result;
adam@1782	1363 }
adamc@117	1364 }
adamc@117	1365
adamc@323	1366 void uw_begin_region(uw_context ctx) {
adam@2013	1367 align_heap(ctx);
adam@2013	1368
adamc@666	1369 regions r = (regions ) ctx->heap.front;
adamc@323	1370
adamc@323	1371 uw_check_heap(ctx, sizeof(regions));
adamc@323	1372
adamc@666	1373 ctx->heap.front += sizeof(regions);
adamc@323	1374
adamc@323	1375 r->next = ctx->regions;
adamc@323	1376 ctx->regions = r;
adamc@323	1377 }
adamc@323	1378
adamc@323	1379 void uw_end_region(uw_context ctx) {
adamc@323	1380 regions *r = ctx->regions;
adamc@323	1381
adamc@323	1382 if (r == NULL)
adamc@323	1383 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1384
adamc@666	1385 ctx->heap.front = (char *) r;
adamc@323	1386 ctx->regions = r->next;
adamc@323	1387 }
adamc@323	1388
adamc@324	1389 void uw_memstats(uw_context ctx) {
adam@1369	1390 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1391 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1392 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1393 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1394 }
adamc@324	1395
adam@1915	1396 int uw_pagelen(uw_context ctx) {
adam@1915	1397 return ctx->page.front - ctx->page.start;
adam@1915	1398 }
adam@1915	1399
adamc@311	1400 int uw_send(uw_context ctx, int sock) {
adam@1949	1401 size_t target_length = (ctx->outHeaders.front - ctx->outHeaders.start) + 2 + (ctx->page.front - ctx->page.start);
adam@1949	1402
adam@1949	1403 if (ctx->output_buffer_size < target_length) {
adam@1949	1404 do {
adam@1949	1405 ctx->output_buffer_size *= 2;
adam@1949	1406 } while (ctx->output_buffer_size < target_length);
adam@1949	1407 ctx->output_buffer = realloc(ctx->output_buffer, ctx->output_buffer_size);
adam@1949	1408 }
adam@1949	1409
adam@1949	1410 memcpy(ctx->output_buffer, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adam@1949	1411 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start), "\r\n", 2);
adam@1949	1412 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start) + 2, ctx->page.start, ctx->page.front - ctx->page.start);
adam@1949	1413
adam@1949	1414 return uw_really_send(sock, ctx->output_buffer, target_length);
adamc@462	1415 }
adamc@462	1416
adamc@856	1417 int uw_print(uw_context ctx, int fd) {
adamc@856	1418 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1419
adamc@856	1420 if (n < 0)
adamc@856	1421 return n;
adamc@856	1422
adamc@856	1423 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1424
adamc@856	1425 if (n < 0)
adamc@856	1426 return n;
adamc@856	1427
adamc@856	1428 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1429 }
adamc@856	1430
adamc@860	1431 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1432 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1433
adamc@860	1434 if (n < 0)
adamc@860	1435 return n;
adamc@860	1436
adamc@860	1437 n = output(data, "\r\n", 2);
adamc@860	1438
adamc@860	1439 if (n < 0)
adamc@860	1440 return n;
adamc@860	1441
adamc@860	1442 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1443 }
adamc@860	1444
adamc@462	1445 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1446 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1447 }
adamc@462	1448
adamc@462	1449 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1450 int len = strlen(s);
adamc@462	1451
adamc@462	1452 uw_check_headers(ctx, len + 1);
adamc@666	1453 strcpy(ctx->outHeaders.front, s);
adamc@666	1454 ctx->outHeaders.front += len;
adamc@562	1455 }
adamc@562	1456
adam@1934	1457 int uw_has_contentLength(uw_context ctx) {
adam@1934	1458 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934	1459 }
adam@1934	1460
adamc@1110	1461 void uw_clear_headers(uw_context ctx) {
adam@1369	1462 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1463 }
adamc@1110	1464
adam@1932	1465 void uw_Basis_clear_page(uw_context ctx) {
adam@1932	1466 uw_buffer_reset(&ctx->page);
adam@1932	1467 }
adam@1932	1468
adamc@562	1469 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1470 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1471 }
adamc@562	1472
adamc@562	1473 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1474 int len = strlen(s);
adamc@562	1475
adamc@562	1476 uw_check_script(ctx, len + 1);
adamc@666	1477 strcpy(ctx->script.front, s);
adamc@666	1478 ctx->script.front += len;
adamc@562	1479 }
adamc@562	1480
adam@1446	1481 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1482 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1483 uw_write_script(ctx, "sig=\"");
adam@1671	1484 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1485 uw_write_script(ctx, "\";");
adam@1671	1486 }
adam@1671	1487
adam@1446	1488 return ctx->script.start;
adam@1446	1489 }
adam@1446	1490
adamc@695	1491 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1492 if (s[0] == 0)
adamc@695	1493 return "";
adamc@695	1494 else {
adamc@695	1495 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1496 sprintf(r, " onload='%s'", s);
adamc@695	1497 return r;
adamc@695	1498 }
adamc@695	1499 }
adamc@695	1500
adamc@1042	1501 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1502 if (ctx->script_header[0] == 0)
adamc@1042	1503 return "";
adamc@1042	1504 else {
vshabanoff@1763	1505 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763	1506 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042	1507 return r;
adamc@1042	1508 }
adamc@1042	1509 }
adamc@1042	1510
adamc@694	1511 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1512 if (ctx->client == NULL) {
adamc@736	1513 if (ctx->needs_sig) {
adamc@1094	1514 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1515 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1516 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1517 return r;
adamc@736	1518 }
adamc@736	1519 else
adamc@736	1520 return "";
adamc@736	1521 } else {
adamc@1094	1522 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1523 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1524 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1525 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1526 (ctx->isPost ? "true" : "false"),
adamc@682	1527 ctx->client->id,
adamc@682	1528 ctx->client->pass,
adamc@1094	1529 ctx->app->url_prefix,
adamc@1094	1530 ctx->app->timeout,
adamc@736	1531 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1532 sig,
adamc@736	1533 ctx->needs_sig ? "\";" : "");
adamc@679	1534 return r;
adamc@668	1535 }
adamc@667	1536 }
adamc@667	1537
adamc@574	1538 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1539 char r, s2;
adamc@574	1540
adam@1446	1541 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1542
adamc@666	1543 r = s2 = ctx->heap.front;
adamc@574	1544 *s2++ = '"';
adamc@574	1545
adamc@574	1546 for (; *s; s++) {
adam@1286	1547 unsigned char c = *s;
adamc@574	1548
adamc@574	1549 switch (c) {
adamc@574	1550 case '"':
adamc@574	1551 strcpy(s2, "\\\"");
adamc@574	1552 s2 += 2;
adamc@574	1553 break;
adamc@1027	1554 case '\'':
adamc@1027	1555 strcpy(s2, "\\047");
adamc@1027	1556 s2 += 4;
adamc@1027	1557 break;
adamc@574	1558 case '\\':
adamc@574	1559 strcpy(s2, "\\\\");
adamc@574	1560 s2 += 2;
adamc@574	1561 break;
adam@1457	1562 case '<':
adam@1457	1563 strcpy(s2, "\\074");
adam@1457	1564 s2 += 4;
adam@1457	1565 break;
adamc@574	1566 default:
adam@1286	1567 if (isprint((int)c) \|\| c >= 128)
adamc@574	1568 *s2++ = c;
adamc@574	1569 else {
adam@1429	1570 sprintf(s2, "\\%03o", c);
adamc@574	1571 s2 += 4;
adamc@574	1572 }
adamc@574	1573 }
adamc@574	1574 }
adamc@574	1575
adamc@574	1576 strcpy(s2, "\"");
adamc@910	1577 ctx->heap.front = s2 + 2;
adamc@574	1578 return r;
adamc@574	1579 }
adamc@574	1580
adam@1286	1581 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1582 unsigned char c = c1;
adamc@1025	1583 char r, s2;
adamc@1025	1584
adam@1446	1585 uw_check_heap(ctx, 7);
adamc@1025	1586
adamc@1025	1587 r = s2 = ctx->heap.front;
adamc@1025	1588 *s2++ = '"';
adamc@1025	1589
adamc@1025	1590 switch (c) {
adamc@1025	1591 case '"':
adamc@1025	1592 strcpy(s2, "\\\"");
adamc@1025	1593 s2 += 2;
adamc@1025	1594 break;
adamc@1027	1595 case '\'':
adamc@1027	1596 strcpy(s2, "\\047");
adamc@1027	1597 s2 += 4;
adamc@1027	1598 break;
adamc@1025	1599 case '\\':
adamc@1025	1600 strcpy(s2, "\\\\");
adamc@1025	1601 s2 += 2;
adamc@1025	1602 break;
adam@1457	1603 case '<':
adam@1457	1604 strcpy(s2, "\\074");
adam@1457	1605 s2 += 4;
adam@1457	1606 break;
adamc@1025	1607 default:
adam@1286	1608 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1609 *s2++ = c;
adamc@1025	1610 else {
adam@1429	1611 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1612 s2 += 4;
adamc@1025	1613 }
adamc@1025	1614 }
adamc@1025	1615
adamc@1025	1616 strcpy(s2, "\"");
adamc@1025	1617 ctx->heap.front = s2 + 2;
adamc@1025	1618 return r;
adamc@1025	1619 }
adamc@1025	1620
adamc@574	1621 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1622 char r, s2;
adamc@574	1623
adam@1446	1624 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1625
adamc@666	1626 r = s2 = ctx->script.front;
adamc@574	1627 *s2++ = '"';
adamc@574	1628
adamc@574	1629 for (; *s; s++) {
adam@1286	1630 unsigned char c = *s;
adamc@574	1631
adamc@574	1632 switch (c) {
adamc@577	1633 case '\'':
adamc@1027	1634 strcpy(s2, "\\");
adamc@574	1635 s2 += 2;
adamc@574	1636 break;
adamc@574	1637 case '\\':
adamc@574	1638 strcpy(s2, "\\\\");
adamc@574	1639 s2 += 2;
adamc@574	1640 break;
adam@1457	1641 case '<':
adam@1457	1642 strcpy(s2, "\\074");
adam@1457	1643 s2 += 4;
adam@1457	1644 break;
adamc@574	1645 default:
adam@1286	1646 if (isprint((int)c) \|\| c >= 128)
adamc@574	1647 *s2++ = c;
adamc@574	1648 else {
adam@1429	1649 sprintf(s2, "\\%03o", c);
adamc@574	1650 s2 += 4;
adamc@574	1651 }
adamc@574	1652 }
adamc@574	1653 }
adamc@574	1654
adamc@574	1655 strcpy(s2, "\"");
adamc@666	1656 ctx->script.front = s2 + 1;
adamc@574	1657 return r;
adamc@574	1658 }
adamc@574	1659
adamc@682	1660 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1661 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1662 return "null";
adamc@682	1663 else {
adamc@682	1664 int len;
adamc@682	1665 char *r;
adamc@682	1666
adamc@682	1667 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1668 r = ctx->heap.front;
adamc@682	1669 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1670 ctx->heap.front += len+1;
adamc@682	1671 return r;
adamc@682	1672 }
adamc@682	1673 }
adamc@682	1674
adam@1446	1675 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1676 int len;
adamc@577	1677 size_t s_len = strlen(s);
adamc@562	1678
grrwlf@1998	1679 if(ctx->id < 0)
grrwlf@1998	1680 uw_error(ctx, FATAL, "Attempt to create client source using inappropriate context");
grrwlf@1998	1681
adam@1446	1682 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1683 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1684 ctx->script.front += len;
adamc@666	1685 strcpy(ctx->script.front, s);
adamc@666	1686 ctx->script.front += s_len;
adamc@970	1687 strcpy(ctx->script.front, "));");
adamc@972	1688 ctx->script.front += 3;
adamc@562	1689
adam@1446	1690 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1691 return r;
adam@1446	1692 }
adam@1446	1693
adam@1446	1694 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1695 int len;
adamc@577	1696 size_t s_len = strlen(s);
adamc@577	1697
adam@1446	1698 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1699 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1700 ctx->script.front += len;
adamc@666	1701 strcpy(ctx->script.front, s);
adamc@666	1702 ctx->script.front += s_len;
adamc@970	1703 strcpy(ctx->script.front, "));");
adamc@972	1704 ctx->script.front += 3;
adamc@577	1705
adamc@577	1706 return uw_unit_v;
adamc@577	1707 }
adamc@577	1708
adamc@311	1709 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1710 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1711 }
adamc@117	1712
adamc@311	1713 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1714 *(ctx->page.front)++ = c;
adam@1413	1715 *ctx->page.front = 0;
adamc@117	1716 }
adamc@117	1717
adamc@311	1718 void uw_writec(uw_context ctx, char c) {
adam@1413	1719 uw_check(ctx, 2);
adamc@311	1720 uw_writec_unsafe(ctx, c);
adamc@117	1721 }
adamc@117	1722
adam@2085	1723 void uw_Basis_writec(uw_context ctx, char c) {
adam@2085	1724 uw_writec(ctx, c);
adam@2085	1725 }
adam@2085	1726
adamc@311	1727 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1728 int len = strlen(s);
adamc@666	1729 memcpy(ctx->page.front, s, len);
adamc@666	1730 ctx->page.front += len;
adamc@117	1731 }
adamc@117	1732
adamc@311	1733 void uw_write(uw_context ctx, const char* s) {
adamc@311	1734 uw_check(ctx, strlen(s) + 1);
adamc@311	1735 uw_write_unsafe(ctx, s);
adamc@666	1736 *ctx->page.front = 0;
adamc@102	1737 }
adamc@106	1738
ziv@2204	1739 void uw_recordingStart(uw_context ctx) {
ziv@2262	1740 if (ctx->numRecording++ == 0) {
ziv@2262	1741 ctx->recordingOffset = ctx->page.front - ctx->page.start;
ziv@2262	1742 }
ziv@2204	1743 }
ziv@2204	1744
ziv@2204	1745 char *uw_recordingRead(uw_context ctx) {
ziv@2262	1746 // Only the outermost recorder can read unless the recording is empty.
ziv@2262	1747 char *recording = ctx->page.start + ctx->recordingOffset;
ziv@2262	1748 if (--ctx->numRecording > 0 && recording != ctx->page.front) {
ziv@2262	1749 return NULL;
ziv@2262	1750 }
ziv@2262	1751 return strdup(recording);
ziv@2204	1752 }
ziv@2204	1753
adamc@311	1754 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1755 char *result;
adamc@136	1756 int len;
adamc@311	1757 uw_check_heap(ctx, INTS_MAX);
adamc@666	1758 result = ctx->heap.front;
adamc@276	1759 sprintf(result, "%lld%n", n, &len);
adamc@666	1760 ctx->heap.front += len+1;
adamc@136	1761 return result;
adamc@106	1762 }
adamc@106	1763
adamc@311	1764 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1765 char *result;
adamc@136	1766 int len;
adamc@311	1767 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1768 result = ctx->heap.front;
adam@1920	1769 sprintf(result, "%.16g%n", n, &len);
adamc@666	1770 ctx->heap.front += len+1;
adamc@136	1771 return result;
adamc@106	1772 }
adamc@106	1773
adamc@311	1774 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1775 int len = strlen(s);
adamc@136	1776 char result, p;
adamc@311	1777 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1778
adamc@666	1779 result = p = ctx->heap.front;
adamc@136	1780
adamc@136	1781 for (; *s; s++) {
adamc@1054	1782 unsigned char c = *s;
adamc@136	1783
adamc@136	1784 if (c == '"') {
adamc@136	1785 strcpy(p, """);
adamc@136	1786 p += 6;
adamc@136	1787 } else if (c == '&') {
adamc@136	1788 strcpy(p, "&");
adamc@136	1789 p += 5;
adamc@136	1790 }
adamc@1059	1791 else
adamc@136	1792 *p++ = c;
adamc@136	1793 }
adamc@136	1794
adamc@137	1795 *p++ = 0;
adamc@666	1796 ctx->heap.front = p;
adamc@136	1797 return result;
adamc@106	1798 }
adamc@106	1799
adamc@1011	1800 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1801 char result, p;
adamc@1011	1802 uw_check_heap(ctx, 7);
adamc@1011	1803
adamc@1011	1804 result = p = ctx->heap.front;
adamc@1011	1805
adamc@1011	1806 if (c == '"') {
adamc@1011	1807 strcpy(p, """);
adamc@1011	1808 p += 6;
adamc@1011	1809 } else if (c == '&') {
adamc@1011	1810 strcpy(p, "&");
adamc@1011	1811 p += 5;
adamc@1011	1812 }
adamc@1059	1813 else
adamc@1011	1814 *p++ = c;
adamc@1011	1815
adamc@1011	1816 *p++ = 0;
adamc@1011	1817 ctx->heap.front = p;
adamc@1011	1818 return result;
adamc@1011	1819 }
adamc@1011	1820
adamc@721	1821 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1822 return s;
adamc@721	1823 }
adamc@721	1824
adamc@311	1825 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1826 int len;
adamc@117	1827
adamc@666	1828 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1829 ctx->page.front += len;
adamc@106	1830 }
adamc@106	1831
adamc@428	1832 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1833 uw_check(ctx, INTS_MAX);
adamc@311	1834 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1835
adamc@428	1836 return uw_unit_v;
adamc@106	1837 }
adamc@106	1838
adamc@428	1839 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1840 int len;
adamc@117	1841
adamc@311	1842 uw_check(ctx, FLOATS_MAX);
adamc@666	1843 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1844 ctx->page.front += len;
adamc@428	1845
adamc@428	1846 return uw_unit_v;
adamc@117	1847 }
adamc@117	1848
adamc@428	1849 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1850 uw_check(ctx, strlen(s) * 6);
adamc@117	1851
adamc@106	1852 for (; *s; s++) {
adamc@1054	1853 unsigned char c = *s;
adamc@106	1854
adamc@106	1855 if (c == '"')
adamc@311	1856 uw_write_unsafe(ctx, """);
adamc@136	1857 else if (c == '&')
adamc@311	1858 uw_write_unsafe(ctx, "&");
adamc@1059	1859 else
adamc@311	1860 uw_writec_unsafe(ctx, c);
adamc@106	1861 }
adamc@428	1862
adamc@428	1863 return uw_unit_v;
adamc@106	1864 }
adamc@120	1865
adamc@1011	1866 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1867 uw_check(ctx, 6);
adamc@1011	1868
adamc@1011	1869 if (c == '"')
adamc@1011	1870 uw_write_unsafe(ctx, """);
adamc@1011	1871 else if (c == '&')
adamc@1011	1872 uw_write_unsafe(ctx, "&");
adamc@1059	1873 else
adamc@1011	1874 uw_writec_unsafe(ctx, c);
adamc@1011	1875
adamc@1011	1876 return uw_unit_v;
adamc@1011	1877 }
adamc@1011	1878
adamc@120	1879
adamc@311	1880 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1881 int len;
adamc@137	1882 char *r;
adamc@137	1883
adamc@311	1884 uw_check_heap(ctx, INTS_MAX);
adamc@666	1885 r = ctx->heap.front;
adamc@276	1886 sprintf(r, "%lld%n", n, &len);
adamc@666	1887 ctx->heap.front += len+1;
adamc@137	1888 return r;
adamc@120	1889 }
adamc@120	1890
adamc@682	1891 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1892 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1893 return "";
adamc@682	1894 else {
adamc@682	1895 int len;
adamc@682	1896 char *r;
adamc@679	1897
adamc@682	1898 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1899 r = ctx->heap.front;
adamc@682	1900 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1901 ctx->heap.front += len+1;
adamc@682	1902 return r;
adamc@682	1903 }
adamc@679	1904 }
adamc@679	1905
adamc@311	1906 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1907 int len;
adamc@137	1908 char *r;
adamc@137	1909
adamc@311	1910 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1911 r = ctx->heap.front;
adamc@137	1912 sprintf(r, "%g%n", n, &len);
adamc@666	1913 ctx->heap.front += len+1;
adamc@137	1914 return r;
adamc@120	1915 }
adamc@120	1916
adamc@311	1917 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1918 char r, p;
adamc@137	1919
adamc@925	1920 if (s[0] == '\0')
adamc@925	1921 return "_";
adamc@925	1922
adamc@925	1923 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1924
adamc@925	1925 r = p = ctx->heap.front;
adamc@925	1926 if (s[0] == '_')
adamc@925	1927 *p++ = '_';
adamc@925	1928
adamc@925	1929 for (; *s; s++) {
adamc@1087	1930 unsigned char c = *s;
adamc@137	1931
adamc@137	1932 if (c == ' ')
adamc@137	1933 *p++ = '+';
adamc@137	1934 else if (isalnum(c))
adamc@137	1935 *p++ = c;
adamc@137	1936 else {
adamc@1259	1937 sprintf(p, ".%02X", c);
adamc@137	1938 p += 3;
adamc@137	1939 }
adamc@137	1940 }
adamc@137	1941
adamc@137	1942 *p++ = 0;
adamc@666	1943 ctx->heap.front = p;
adamc@137	1944 return r;
adamc@120	1945 }
adamc@120	1946
adamc@311	1947 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1948 if (b == uw_Basis_False)
adamc@186	1949 return "0";
adamc@186	1950 else
adamc@186	1951 return "1";
adamc@186	1952 }
adamc@186	1953
adam@1620	1954 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1955 char *r;
adam@1620	1956 int len;
adam@1620	1957 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1958 r = ctx->heap.front;
adam@1620	1959 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1960 ctx->heap.front += len+1;
adam@1620	1961 return r;
adam@1620	1962 }
adam@1620	1963
adamc@311	1964 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1965 int len;
adamc@120	1966
adamc@666	1967 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1968 ctx->page.front += len;
adamc@120	1969 }
adamc@120	1970
adamc@428	1971 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1972 uw_check(ctx, INTS_MAX);
adamc@311	1973 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1974
adamc@428	1975 return uw_unit_v;
adamc@120	1976 }
adamc@120	1977
adamc@682	1978 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1979 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1980 int len;
phurst@1981	1981
adamc@682	1982 uw_check(ctx, INTS_MAX + 1);
adamc@682	1983 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1984 ctx->page.front += len;
adamc@682	1985 }
phurst@1981	1986
adamc@679	1987 return uw_unit_v;
adamc@679	1988 }
adamc@679	1989
adamc@428	1990 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1991 int len;
adamc@120	1992
adamc@311	1993 uw_check(ctx, FLOATS_MAX);
adamc@666	1994 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1995 ctx->page.front += len;
adamc@428	1996
adamc@428	1997 return uw_unit_v;
adamc@120	1998 }
adamc@120	1999
adamc@488	2000 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	2001 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	2002 }
adamc@488	2003
adam@1404	2004 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	2005 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	2006 }
adam@1404	2007
adamc@428	2008 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	2009 if (s[0] == '\0') {
adamc@925	2010 uw_check(ctx, 1);
adamc@925	2011 uw_writec_unsafe(ctx, '_');
adamc@925	2012 return uw_unit_v;
adamc@925	2013 }
adamc@925	2014
adamc@925	2015 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	2016
adamc@925	2017 if (s[0] == '_')
adamc@925	2018 uw_writec_unsafe(ctx, '_');
adamc@120	2019
adamc@120	2020 for (; *s; s++) {
adamc@1087	2021 unsigned char c = *s;
adamc@120	2022
adamc@120	2023 if (c == ' ')
adamc@311	2024 uw_writec_unsafe(ctx, '+');
adamc@120	2025 else if (isalnum(c))
adamc@311	2026 uw_writec_unsafe(ctx, c);
adamc@120	2027 else {
adamc@1259	2028 sprintf(ctx->page.front, ".%02X", c);
adamc@666	2029 ctx->page.front += 3;
adamc@120	2030 }
adamc@120	2031 }
adamc@428	2032
adamc@428	2033 return uw_unit_v;
adamc@120	2034 }
adamc@120	2035
adamc@428	2036 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2037 if (b == uw_Basis_False)
adamc@311	2038 uw_writec(ctx, '0');
adamc@186	2039 else
adamc@311	2040 uw_writec(ctx, '1');
adamc@428	2041
adamc@428	2042 return uw_unit_v;
adamc@186	2043 }
adamc@186	2044
adam@1620	2045 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	2046 int len;
phurst@1981	2047
adam@1620	2048 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	2049 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	2050 ctx->page.front += len;
phurst@1981	2051
adam@1620	2052 return uw_unit_v;
adam@1620	2053 }
adam@1620	2054
adamc@120	2055
adamc@311	2056 static char uw_unurlify_advance(char s) {
adamc@144	2057 char *new_s = strchr(s, '/');
adamc@120	2058
adamc@120	2059 if (new_s)
adamc@120	2060 *new_s++ = 0;
adamc@120	2061 else
adamc@144	2062 new_s = strchr(s, 0);
adamc@144	2063
adamc@144	2064 return new_s;
adamc@144	2065 }
adamc@144	2066
adamc@311	2067 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	2068 char new_s = uw_unurlify_advance(s);
adamc@311	2069 uw_Basis_int r;
adamc@120	2070
adamc@276	2071 r = atoll(*s);
adamc@120	2072 *s = new_s;
adamc@120	2073 return r;
adamc@120	2074 }
adamc@120	2075
adamc@311	2076 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	2077 char new_s = uw_unurlify_advance(s);
adamc@311	2078 uw_Basis_float r;
adamc@120	2079
adamc@120	2080 r = atof(*s);
adamc@120	2081 *s = new_s;
adamc@120	2082 return r;
adamc@120	2083 }
adamc@120	2084
adamc@488	2085 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	2086 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	2087 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	2088 return r;
adamc@488	2089 }
adamc@488	2090
adamc@1023	2091 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	2092 char s1, s2 = s;
adamc@144	2093 int n;
adamc@136	2094
adamc@1023	2095 if (!fromClient) {
adamc@1023	2096 if (*s2 == '_')
adamc@1023	2097 ++s2;
adamc@1259	2098 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	2099 s2 += 3;
adamc@1023	2100 }
adamc@925	2101
adamc@927	2102 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	2103 unsigned char c = *s2;
adamc@136	2104
adamc@136	2105 switch (c) {
adamc@136	2106 case '+':
adamc@136	2107 *s1 = ' ';
adamc@136	2108 break;
adamc@136	2109 case '%':
adamc@169	2110 if (s2[1] == 0)
adamc@311	2111 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	2112 if (s2[2] == 0)
adamc@311	2113 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	2114 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2115 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	2116 *s1 = n;
adamc@136	2117 s2 += 2;
adamc@136	2118 break;
adamc@1259	2119 case '.':
adamc@1259	2120 if (!fromClient) {
adamc@1259	2121 if (s2[1] == 0)
adamc@1259	2122 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	2123 if (s2[2] == 0)
adamc@1259	2124 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	2125 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2126 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	2127 *s1 = n;
adamc@1259	2128 s2 += 2;
adamc@1259	2129 break;
adamc@1259	2130 }
adamc@136	2131 default:
adamc@136	2132 *s1 = c;
adamc@136	2133 }
adamc@136	2134 }
adamc@136	2135 *s1++ = 0;
adamc@144	2136 return s1;
adamc@144	2137 }
adamc@144	2138
adamc@311	2139 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	2140 char new_s = uw_unurlify_advance(s);
adamc@311	2141 uw_Basis_bool r;
phurst@1981	2142
adamc@186	2143 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2144 r = uw_Basis_False;
adamc@186	2145 else
adamc@311	2146 r = uw_Basis_True;
adamc@186	2147
adamc@186	2148 *s = new_s;
adamc@186	2149 return r;
adamc@186	2150 }
adamc@186	2151
adamc@311	2152 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2153 char new_s = uw_unurlify_advance(s);
adamc@1134	2154 char *r;
adamc@1134	2155 int len;
adamc@144	2156
adamc@200	2157 len = strlen(*s);
adamc@311	2158 uw_check_heap(ctx, len + 1);
adamc@144	2159
adamc@666	2160 r = ctx->heap.front;
adamc@1023	2161 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2162 *s = new_s;
adamc@1023	2163 return r;
adamc@1023	2164 }
adamc@1023	2165
adamc@1109	2166 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2167 s = uw_unurlify_advance(s);
adamc@1109	2168 return uw_unit_v;
adamc@1109	2169 }
adamc@1109	2170
adamc@1023	2171 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2172 char new_s = uw_unurlify_advance(s);
adamc@1134	2173 char *r;
adamc@1134	2174 int len;
adamc@1023	2175
adamc@1023	2176 len = strlen(*s);
adamc@1023	2177 uw_check_heap(ctx, len + 1);
adamc@1023	2178
adamc@1023	2179 r = ctx->heap.front;
adamc@1023	2180 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2181 *s = new_s;
adamc@136	2182 return r;
adamc@120	2183 }
adamc@135	2184
adamc@135	2185
adamc@311	2186 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2187 int len;
adamc@286	2188 char *r;
adamc@286	2189
adamc@311	2190 uw_check_heap(ctx, INTS_MAX);
adamc@666	2191 r = ctx->heap.front;
adamc@286	2192 sprintf(r, "%lld%n", n, &len);
adamc@666	2193 ctx->heap.front += len+1;
adamc@286	2194 return r;
adamc@286	2195 }
adamc@286	2196
adamc@428	2197 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2198 int len;
adamc@286	2199
adamc@311	2200 uw_check(ctx, INTS_MAX);
adamc@666	2201 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2202 ctx->page.front += len;
phurst@1981	2203
adamc@428	2204 return uw_unit_v;
adamc@286	2205 }
adamc@286	2206
adam@1358	2207 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2208 unsigned int n = ch;
adam@1358	2209 int len;
adam@1358	2210 char *r;
adam@1358	2211
adam@1358	2212 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2213 r = ctx->heap.front;
adam@1358	2214 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2215 ctx->heap.front += len+1;
adam@1358	2216 return r;
adam@1358	2217 }
adam@1358	2218
adam@1358	2219 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2220 unsigned int n = ch;
adam@1358	2221 int len;
adam@1358	2222
adam@1358	2223 uw_check(ctx, INTS_MAX+3);
adam@1358	2224 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2225 ctx->page.front += len;
adam@1358	2226 return uw_unit_v;
adam@1358	2227 }
adam@1358	2228
adamc@311	2229 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2230 int len;
adamc@286	2231 char *r;
adamc@286	2232
adamc@311	2233 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2234 r = ctx->heap.front;
adamc@286	2235 sprintf(r, "%g%n", n, &len);
adamc@666	2236 ctx->heap.front += len+1;
adamc@286	2237 return r;
adamc@286	2238 }
adamc@286	2239
adamc@428	2240 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2241 int len;
adamc@286	2242
adamc@311	2243 uw_check(ctx, FLOATS_MAX);
adamc@666	2244 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2245 ctx->page.front += len;
adamc@428	2246
adamc@428	2247 return uw_unit_v;
adamc@286	2248 }
adamc@286	2249
adam@1365	2250 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2251 int len;
adam@1360	2252 char *r;
adam@1360	2253
adam@1360	2254 uw_check_heap(ctx, INTS_MAX);
adam@1360	2255 r = ctx->heap.front;
adamc@1377	2256 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2257 ctx->heap.front += len+1;
adam@1360	2258 return r;
adam@1360	2259 }
adam@1360	2260
adam@1365	2261 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2262 int len;
adam@1360	2263
adam@1360	2264 uw_check(ctx, INTS_MAX);
adam@1360	2265 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2266 ctx->page.front += len;
phurst@1981	2267
adam@1360	2268 return uw_unit_v;
adam@1360	2269 }
adam@1360	2270
adam@1444	2271 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2272 char r, s2;
adamc@137	2273
adamc@311	2274 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2275
adamc@666	2276 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2277 unsigned char c = *s;
adamc@137	2278
adamc@137	2279 switch (c) {
adamc@137	2280 case '<':
adamc@137	2281 strcpy(s2, "<");
adamc@137	2282 s2 += 4;
adamc@137	2283 break;
adamc@137	2284 case '&':
adamc@137	2285 strcpy(s2, "&");
adamc@137	2286 s2 += 5;
adamc@137	2287 break;
adamc@137	2288 default:
adamc@1059	2289 *s2++ = c;
adamc@137	2290 }
adamc@137	2291 }
adamc@137	2292
adamc@137	2293 *s2++ = 0;
adamc@666	2294 ctx->heap.front = s2;
adamc@137	2295 return r;
adamc@135	2296 }
adamc@135	2297
adamc@428	2298 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2299 uw_check(ctx, strlen(s) * 6);
adamc@135	2300
adamc@135	2301 for (; *s; s++) {
adamc@1054	2302 unsigned char c = *s;
adamc@135	2303
adamc@135	2304 switch (c) {
adamc@135	2305 case '<':
adamc@311	2306 uw_write_unsafe(ctx, "<");
adamc@135	2307 break;
adamc@135	2308 case '&':
adamc@311	2309 uw_write_unsafe(ctx, "&");
adamc@135	2310 break;
adamc@135	2311 default:
adamc@1059	2312 uw_writec_unsafe(ctx, c);
adamc@135	2313 }
adamc@135	2314 }
adamc@428	2315
adamc@428	2316 return uw_unit_v;
adamc@135	2317 }
adamc@180	2318
adamc@311	2319 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2320 if (b == uw_Basis_False)
adamc@286	2321 return "False";
adamc@286	2322 else
adamc@286	2323 return "True";
adamc@286	2324 }
adamc@286	2325
adamc@428	2326 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2327 if (b == uw_Basis_False) {
adamc@311	2328 uw_check(ctx, 6);
adamc@666	2329 strcpy(ctx->page.front, "False");
adamc@666	2330 ctx->page.front += 5;
adamc@286	2331 } else {
adamc@311	2332 uw_check(ctx, 5);
adamc@666	2333 strcpy(ctx->page.front, "True");
adamc@666	2334 ctx->page.front += 4;
adamc@286	2335 }
adamc@428	2336
adamc@428	2337 return uw_unit_v;
adamc@286	2338 }
adamc@286	2339
adamc@436	2340 #define TIME_FMT "%x %X"
adamc@438	2341 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2342 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2343
adam@1629	2344 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2345
adamc@436	2346 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2347 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2348 }
adamc@436	2349
adamc@436	2350 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2351 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2352 }
adamc@436	2353
adam@1446	2354 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2355 int len;
adam@1446	2356 char *r;
adam@1446	2357
adam@1446	2358 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2359 r = ctx->heap.front;
adam@1446	2360 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2361 ctx->heap.front += len+1;
adam@1446	2362 return r;
adam@1446	2363 }
adam@1446	2364
adam@1446	2365 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2366 int len;
adam@1446	2367
adam@1446	2368 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2369 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2370 ctx->page.front += len;
phurst@1981	2371
adam@1446	2372 return uw_unit_v;
adam@1446	2373 }
adam@1446	2374
adamc@821	2375 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2376 while (n >= 0) {
adam@1388	2377 if (*s == 0)
adam@1388	2378 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2379
adam@1388	2380 if (n == 0)
adam@1388	2381 return *s;
adam@1388	2382
adam@1388	2383 --n;
adam@1388	2384 ++s;
adam@1388	2385 }
adam@1388	2386
adam@1388	2387 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2388 }
adamc@821	2389
adamc@821	2390 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2391 while (n >= 0) {
adam@1388	2392 if (*s == 0 \|\| n == 0)
adam@1388	2393 return s;
adam@1388	2394
adam@1388	2395 --n;
adam@1388	2396 ++s;
adam@1388	2397 }
adam@1388	2398
adam@1388	2399 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2400 }
adamc@821	2401
adamc@828	2402 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2403 return strlen(s);
adamc@828	2404 }
adamc@828	2405
adam@1388	2406 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2407 while (n > 0) {
adam@1388	2408 if (*s == 0)
adam@1388	2409 return uw_Basis_False;
adam@1388	2410
adam@1388	2411 --n;
adam@1388	2412 ++s;
adam@1388	2413 }
adam@1388	2414
adam@1388	2415 return uw_Basis_True;
adam@1388	2416 }
adam@1388	2417
adamc@829	2418 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2419 return strchr(s, ch);
adamc@829	2420 }
adamc@829	2421
adamc@831	2422 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2423 return strcspn(s, chs);
adamc@831	2424 }
adamc@831	2425
adamc@829	2426 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2427 uw_Basis_string r = strchr(s, ch);
adamc@829	2428 if (r == NULL)
adamc@829	2429 return NULL;
adamc@829	2430 else {
adamc@829	2431 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2432 *nr = r - s;
adamc@829	2433 return nr;
adamc@829	2434 }
adamc@829	2435 }
adamc@829	2436
adam@1390	2437 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2438 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2439 if (r == NULL)
adam@1390	2440 return NULL;
adam@1390	2441 else {
adam@1390	2442 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2443 *nr = r - haystack;
adam@1390	2444 return nr;
adam@1390	2445 }
adam@1390	2446 }
adam@1390	2447
adamc@311	2448 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2449 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2450 char *s;
adamc@180	2451
adamc@311	2452 uw_check_heap(ctx, len);
adamc@180	2453
adamc@666	2454 s = ctx->heap.front;
adamc@180	2455
adamc@180	2456 strcpy(s, s1);
adamc@180	2457 strcat(s, s2);
adamc@666	2458 ctx->heap.front += len;
adamc@180	2459
adamc@180	2460 return s;
adamc@180	2461 }
adamc@278	2462
adamc@829	2463 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2464 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2465
adamc@829	2466 if (start < 0)
adamc@829	2467 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2468 if (len < 0)
adamc@829	2469 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2470 if (start + len > full_len)
adamc@829	2471 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2472
adamc@829	2473 if (start + len == full_len)
adamc@829	2474 return &s[start];
adamc@829	2475 else {
adamc@829	2476 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2477 memcpy(r, s+start, len);
adamc@829	2478 r[len] = 0;
adamc@829	2479 return r;
adamc@829	2480 }
phurst@1981	2481
adamc@829	2482 }
adamc@829	2483
adamc@1023	2484 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2485 char *r;
adamc@1023	2486
adamc@1023	2487 uw_check_heap(ctx, 2);
adamc@1023	2488 r = ctx->heap.front;
adamc@1023	2489 r[0] = ch;
adamc@1023	2490 r[1] = 0;
adamc@1023	2491
adamc@1023	2492 ctx->heap.front += 2;
adamc@1023	2493
adamc@1023	2494 return r;
adamc@1023	2495 }
adamc@1023	2496
adamc@737	2497 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2498 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2499 char *s;
adamc@278	2500
adamc@311	2501 uw_check_heap(ctx, len);
adamc@278	2502
adamc@666	2503 s = ctx->heap.front;
adamc@278	2504
adamc@278	2505 strcpy(s, s1);
adamc@666	2506 ctx->heap.front += len;
adamc@278	2507
adamc@278	2508 return s;
adamc@278	2509 }
adamc@280	2510
adam@1295	2511 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2512 if (ctx->error_message[0]) {
adam@1295	2513 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2514 ctx->error_message[0] = 0;
adam@1295	2515 return s;
adam@1295	2516 } else
adam@1295	2517 return NULL;
adam@1295	2518 }
adam@1295	2519
adamc@737	2520 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2521 if (s1)
adamc@737	2522 return uw_strdup(ctx, s1);
adamc@493	2523 else
adamc@493	2524 return NULL;
adamc@493	2525 }
adamc@493	2526
adamc@742	2527 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2528 char *r = uw_malloc(ctx, len);
adamc@742	2529 memcpy(r, p, len);
adamc@742	2530 return r;
adamc@742	2531 }
adamc@280	2532
adamc@879	2533 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2534
adamc@311	2535 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2536 int len;
adamc@281	2537 char *r;
adamc@281	2538
adamc@311	2539 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2540 r = ctx->heap.front;
adamc@879	2541 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2542 ctx->heap.front += len+1;
adamc@281	2543 return r;
adamc@281	2544 }
adamc@281	2545
adamc@467	2546 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2547 if (n == NULL)
adamc@467	2548 return "NULL";
adamc@467	2549 else
adamc@467	2550 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2551 }
adamc@467	2552
adam@1920	2553 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879	2554
adamc@311	2555 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2556 int len;
adamc@281	2557 char *r;
adamc@281	2558
adamc@311	2559 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2560 r = ctx->heap.front;
adamc@879	2561 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2562 ctx->heap.front += len+1;
adamc@281	2563 return r;
adamc@281	2564 }
adamc@281	2565
adamc@467	2566 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2567 if (n == NULL)
adamc@467	2568 return "NULL";
adamc@467	2569 else
adamc@467	2570 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2571 }
adamc@467	2572
adam@1834	2573 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2574 char *uw_sqlsuffixString = "::text";
adamc@1011	2575 char *uw_sqlsuffixChar = "::char";
adamc@281	2576
adamc@311	2577 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2578 char r, s2;
adamc@280	2579
adamc@879	2580 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2581
adamc@666	2582 r = s2 = ctx->heap.front;
adamc@879	2583 if (uw_Estrings)
adamc@879	2584 *s2++ = 'E';
adamc@280	2585 *s2++ = '\'';
adamc@280	2586
adamc@280	2587 for (; *s; s++) {
adamc@280	2588 char c = *s;
adamc@280	2589
adamc@280	2590 switch (c) {
adamc@280	2591 case '\'':
adamc@885	2592 if (uw_Estrings)
adamc@885	2593 strcpy(s2, "\\'");
adamc@885	2594 else
adamc@885	2595 strcpy(s2, "''");
adamc@280	2596 s2 += 2;
adamc@280	2597 break;
adamc@280	2598 case '\\':
adamc@885	2599 if (uw_Estrings) {
adamc@885	2600 strcpy(s2, "\\\\");
adamc@885	2601 s2 += 2;
adamc@885	2602 } else
adamc@885	2603 *s2++ = '\\';
adamc@280	2604 break;
adamc@280	2605 default:
adamc@1150	2606 if (isprint((int)c))
adamc@280	2607 *s2++ = c;
adamc@879	2608 else if (uw_Estrings) {
adam@1857	2609 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2610 s2 += 4;
adamc@280	2611 }
adamc@879	2612 else
adam@1689	2613 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2614 }
adamc@280	2615 }
adamc@280	2616
adamc@879	2617 *s2++ = '\'';
adamc@879	2618 strcpy(s2, uw_sqlsuffixString);
adamc@879	2619 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2620 return r;
adamc@280	2621 }
adamc@281	2622
adamc@1011	2623 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2624 char r, s2;
adamc@1011	2625
adamc@1011	2626 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2627
adamc@1011	2628 r = s2 = ctx->heap.front;
adamc@1011	2629 if (uw_Estrings)
adamc@1011	2630 *s2++ = 'E';
adamc@1011	2631 *s2++ = '\'';
adamc@1011	2632
adamc@1011	2633 switch (c) {
adamc@1011	2634 case '\'':
adamc@1011	2635 if (uw_Estrings)
adamc@1011	2636 strcpy(s2, "\\'");
adamc@1011	2637 else
adamc@1011	2638 strcpy(s2, "''");
adamc@1011	2639 s2 += 2;
adamc@1011	2640 break;
adamc@1011	2641 case '\\':
adamc@1011	2642 if (uw_Estrings) {
adamc@1011	2643 strcpy(s2, "\\\\");
adamc@1011	2644 s2 += 2;
adamc@1011	2645 } else
adamc@1011	2646 *s2++ = '\\';
adamc@1011	2647 break;
adamc@1011	2648 default:
adamc@1150	2649 if (isprint((int)c))
adamc@1011	2650 *s2++ = c;
adamc@1011	2651 else if (uw_Estrings) {
adam@1857	2652 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2653 s2 += 4;
adamc@1011	2654 }
adamc@1011	2655 else
adamc@1011	2656 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2657 }
adamc@1011	2658
adamc@1011	2659 *s2++ = '\'';
adamc@1011	2660 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2661 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2662 return r;
adamc@1011	2663 }
adamc@1011	2664
adamc@879	2665 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2666
adam@1867	2667 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2668 char r, s2;
adamc@737	2669 size_t i;
adamc@737	2670
adam@1867	2671 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2672
adamc@737	2673 r = s2 = ctx->heap.front;
adamc@879	2674 if (uw_Estrings)
adamc@879	2675 *s2++ = 'E';
adam@1867	2676 else
adam@1867	2677 *s2++ = 'X';
adamc@737	2678 *s2++ = '\'';
adamc@737	2679
adamc@737	2680 for (i = 0; i < b.size; ++i) {
adam@1867	2681 unsigned char c = b.data[i];
adam@1867	2682
adam@1867	2683 if (uw_Estrings) {
adam@1867	2684 switch (c) {
adam@1867	2685 case '\'':
adamc@885	2686 strcpy(s2, "\\'");
adam@1867	2687 s2 += 2;
adam@1867	2688 break;
adam@1867	2689 case '\\':
adamc@885	2690 strcpy(s2, "\\\\\\\\");
adamc@885	2691 s2 += 4;
adam@1867	2692 break;
adam@1867	2693 default:
adam@1867	2694 if (isprint((int)c))
adam@1867	2695 *s2++ = c;
adam@1867	2696 else {
adam@1867	2697 sprintf(s2, "\\\\%03o", c);
adam@1867	2698 s2 += 5;
adam@1867	2699 }
adamc@737	2700 }
adam@1867	2701 } else {
adam@1867	2702 sprintf(s2, "%02X", c);
adam@1867	2703 s2 += 2;
adamc@737	2704 }
phurst@1981	2705 }
adamc@737	2706
adamc@879	2707 *s2++ = '\'';
adamc@879	2708 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2709 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2710 return r;
adamc@737	2711 }
adamc@737	2712
adamc@682	2713 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2714 int len;
adamc@682	2715 char *r;
adamc@682	2716 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2717
adamc@682	2718 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2719 r = ctx->heap.front;
adamc@879	2720 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2721 ctx->heap.front += len+1;
adamc@682	2722 return r;
adamc@682	2723 }
adamc@682	2724
adamc@682	2725 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2726 int len;
adamc@682	2727 char *r;
adamc@682	2728 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2729
adamc@682	2730 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2731 r = ctx->heap.front;
adamc@682	2732 sprintf(r, "%lld%n", combo, &len);
adamc@682	2733 ctx->heap.front += len+1;
adamc@682	2734 return r;
adamc@682	2735 }
adamc@682	2736
adamc@879	2737 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2738
adamc@682	2739 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2740 int len;
adamc@682	2741 char *r;
adamc@682	2742
adamc@682	2743 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2744 r = ctx->heap.front;
adamc@879	2745 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2746 ctx->heap.front += len+1;
adamc@682	2747 return r;
adamc@682	2748 }
adamc@682	2749
adamc@682	2750 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2751 int len;
adamc@682	2752 char *r;
adamc@682	2753
adamc@682	2754 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2755 r = ctx->heap.front;
adamc@682	2756 sprintf(r, "%u%n", cli, &len);
adamc@682	2757 ctx->heap.front += len+1;
adamc@682	2758 return r;
adamc@682	2759 }
adamc@682	2760
adamc@467	2761 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2762 if (s == NULL)
adamc@467	2763 return "NULL";
adamc@467	2764 else
adamc@467	2765 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2766 }
adamc@467	2767
adamc@311	2768 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2769 if (b == uw_Basis_False)
adamc@281	2770 return "FALSE";
adamc@281	2771 else
adamc@281	2772 return "TRUE";
adamc@281	2773 }
adamc@282	2774
adamc@467	2775 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2776 if (b == NULL)
adamc@467	2777 return "NULL";
adamc@467	2778 else
adamc@467	2779 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2780 }
adamc@467	2781
adamc@439	2782 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2783 size_t len;
adamc@682	2784 char r, s;
adam@1392	2785 struct tm stm = {};
adam@1392	2786 stm.tm_isdst = -1;
adamc@682	2787
adam@1365	2788 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2789 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2790 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2791 if (uw_sql_type_annotations) {
adam@1834	2792 if (t.microseconds) {
adam@1834	2793 r = uw_malloc(ctx, len + 21);
adam@1834	2794 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2795 } else {
adam@1834	2796 r = uw_malloc(ctx, len + 14);
adam@1834	2797 sprintf(r, "'%s'::timestamp", s);
adam@1834	2798 }
adam@1367	2799 } else {
adam@1834	2800 r = uw_malloc(ctx, len + 3);
adam@1834	2801 sprintf(r, "'%s'", s);
adam@1367	2802 }
adamc@682	2803 return r;
adamc@682	2804 } else
adamc@682	2805 return "<Invalid time>";
adamc@682	2806 }
adamc@682	2807
adamc@682	2808 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2809 size_t len;
adamc@439	2810 char *r;
adam@1392	2811 struct tm stm = {};
adam@1392	2812 stm.tm_isdst = -1;
adamc@439	2813
adam@1365	2814 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2815 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2816 r = ctx->heap.front;
adamc@439	2817 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2818 ctx->heap.front += len+1;
adamc@439	2819 return r;
adamc@439	2820 } else
adamc@439	2821 return "<Invalid time>";
adamc@439	2822 }
adamc@439	2823
adam@1364	2824 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2825 size_t len;
adam@1364	2826 char *r;
adam@1392	2827 struct tm stm = {};
adam@1392	2828 stm.tm_isdst = -1;
adam@1364	2829
adam@1365	2830 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2831 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2832 r = ctx->heap.front;
adam@1365	2833 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2834 ctx->heap.front += len;
adam@1365	2835 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2836 ctx->heap.front += 8;
adam@1364	2837 return r;
adam@1364	2838 } else
adam@1364	2839 return "<Invalid time>";
adam@1364	2840 }
adam@1364	2841
adamc@467	2842 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2843 if (t == NULL)
adamc@467	2844 return "NULL";
adamc@467	2845 else
adamc@467	2846 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2847 }
adamc@467	2848
adamc@311	2849 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2850 static uw_Basis_int true = 1;
adamc@311	2851 static uw_Basis_int false = 0;
adamc@282	2852
adamc@311	2853 if (b == uw_Basis_False)
adamc@282	2854 return (char *)&false;
adamc@282	2855 else
adamc@282	2856 return (char *)&true;
adamc@282	2857 }
adamc@284	2858
adamc@311	2859 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2860 int len;
adamc@284	2861 char *r;
adamc@284	2862
adamc@311	2863 uw_check_heap(ctx, INTS_MAX);
adamc@666	2864 r = ctx->heap.front;
adamc@284	2865 sprintf(r, "%lld%n", n, &len);
adamc@666	2866 ctx->heap.front += len+1;
adamc@284	2867 return r;
adamc@284	2868 }
adamc@285	2869
adamc@311	2870 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2871 int len;
adamc@285	2872 char *r;
adamc@285	2873
adamc@311	2874 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2875 r = ctx->heap.front;
adamc@285	2876 sprintf(r, "%g%n", n, &len);
adamc@666	2877 ctx->heap.front += len+1;
adamc@285	2878 return r;
adamc@285	2879 }
adamc@285	2880
adamc@821	2881 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2882 char *r = uw_malloc(ctx, 2);
adamc@821	2883 r[0] = ch;
adamc@821	2884 r[1] = 0;
adamc@821	2885 return r;
adamc@821	2886 }
adamc@821	2887
adamc@311	2888 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2889 if (b == uw_Basis_False)
adamc@285	2890 return "False";
adamc@285	2891 else
adamc@285	2892 return "True";
adamc@285	2893 }
adamc@288	2894
adam@1359	2895 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2896 size_t len;
adam@1352	2897 char *r;
adam@1392	2898 struct tm stm = {};
adam@1392	2899 stm.tm_isdst = -1;
adam@1352	2900
adam@1365	2901 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2902 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2903 r = ctx->heap.front;
adam@1352	2904 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2905 ctx->heap.front += len+1;
adam@1352	2906 return r;
adam@1352	2907 } else
adam@1352	2908 return "<Invalid time>";
adam@1352	2909 }
adam@1352	2910
adam@1629	2911 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2912 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2913 }
adam@1629	2914
adamc@311	2915 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2916 char *endptr;
adamc@311	2917 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2918
adamc@288	2919 if (s != '\0' && endptr == '\0') {
adamc@311	2920 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2921 *r = n;
adamc@288	2922 return r;
adamc@288	2923 } else
adamc@288	2924 return NULL;
adamc@288	2925 }
adamc@289	2926
adamc@311	2927 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2928 char *endptr;
adamc@311	2929 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2930
adamc@289	2931 if (s != '\0' && endptr == '\0') {
adamc@311	2932 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2933 *r = n;
adamc@289	2934 return r;
adamc@289	2935 } else
adamc@289	2936 return NULL;
adamc@289	2937 }
adamc@289	2938
adamc@821	2939 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2940 if (s[0] == 0) {
adamc@821	2941 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2942 r[0] = 0;
adamc@821	2943 return r;
adamc@821	2944 } else if (s[1] != 0)
adamc@821	2945 return NULL;
adamc@821	2946 else {
adamc@821	2947 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2948 r[0] = s[0];
adamc@821	2949 return r;
adamc@821	2950 }
adamc@821	2951 }
adamc@821	2952
adamc@311	2953 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2954 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2955 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2956
adamc@289	2957 if (!strcasecmp (s, "True"))
adamc@289	2958 return &true;
adamc@289	2959 else if (!strcasecmp (s, "False"))
adamc@289	2960 return &false;
adamc@289	2961 else
adamc@289	2962 return NULL;
adamc@289	2963 }
adamc@292	2964
adamc@436	2965 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2966 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2967 struct tm stm = {};
adam@1392	2968 stm.tm_isdst = -1;
adamc@436	2969
adamc@439	2970 if (dot) {
adamc@439	2971 *dot = 0;
adamc@439	2972 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2973 *dot = '.';
adamc@439	2974 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2975 r->seconds = mktime(&stm);
adam@1365	2976 r->microseconds = 0;
adamc@439	2977 return r;
adamc@439	2978 }
adamc@439	2979 else {
adamc@439	2980 *dot = '.';
adamc@439	2981 return NULL;
adamc@439	2982 }
adamc@436	2983 }
adamc@439	2984 else {
adam@2072	2985 if (strptime(s, ctx->app->time_format, &stm) == end) {
adamc@439	2986 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2987 r->seconds = mktime(&stm);
adam@1365	2988 r->microseconds = 0;
adamc@439	2989 return r;
adam@2072	2990 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@2072	2991 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@2072	2992 r->seconds = mktime(&stm);
adam@2072	2993 r->microseconds = 0;
adam@2072	2994 return r;
adam@2072	2995 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2996 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2997 r->seconds = mktime(&stm);
adam@1365	2998 r->microseconds = 0;
adamc@439	2999 return r;
adam@1632	3000 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3001 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	3002 r->seconds = mktime(&stm);
adam@1632	3003 r->microseconds = 0;
adam@1632	3004 return r;
adamc@439	3005 }
adamc@439	3006 else
adamc@439	3007 return NULL;
adamc@439	3008 }
adamc@436	3009 }
adamc@436	3010
adam@1352	3011 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	3012 char *end = strchr(s, 0);
adam@1374	3013 struct tm stm = {};
adam@1392	3014 stm.tm_isdst = -1;
adam@1352	3015
adam@1352	3016 if (strptime(s, fmt, &stm) == end) {
adam@1352	3017 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	3018 r->seconds = mktime(&stm);
adam@1365	3019 r->microseconds = 0;
adam@1352	3020 return r;
adam@1352	3021 }
adam@1352	3022 else
adam@1352	3023 return NULL;
adam@1352	3024 }
adam@1352	3025
adamc@311	3026 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	3027 char *endptr;
adamc@311	3028 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	3029
adamc@292	3030 if (s != '\0' && endptr == '\0')
adamc@292	3031 return n;
adamc@292	3032 else
adam@1444	3033 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	3034 }
adamc@293	3035
adamc@682	3036 #include <errno.h>
adamc@682	3037
adamc@678	3038 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	3039 unsigned long long n;
adamc@682	3040
adamc@682	3041 if (sscanf(s, "%llu", &n) < 1)
adam@1444	3042 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	3043 else {
adamc@682	3044 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	3045 return ch;
adamc@682	3046 }
adamc@682	3047 }
adamc@682	3048
adamc@682	3049 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	3050 char *endptr;
adamc@682	3051 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	3052
adamc@678	3053 if (s != '\0' && endptr == '\0')
adamc@678	3054 return n;
adamc@678	3055 else
adam@1444	3056 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	3057 }
adamc@678	3058
adamc@311	3059 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	3060 char *endptr;
adamc@311	3061 uw_Basis_float n = strtod(s, &endptr);
adamc@293	3062
adamc@293	3063 if (s != '\0' && endptr == '\0')
adamc@293	3064 return n;
adamc@293	3065 else
adam@1444	3066 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3067 }
adamc@293	3068
adamc@821	3069 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	3070 if (s[0] == 0)
adamc@821	3071 return 0;
adamc@821	3072 else if (s[1] != 0)
adam@1444	3073 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	3074 else
adamc@821	3075 return s[0];
adamc@821	3076 }
adamc@821	3077
adamc@311	3078 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	3079 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	3080 return uw_Basis_True;
adamc@296	3081 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	3082 return uw_Basis_False;
adamc@293	3083 else
adam@1444	3084 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3085 }
adamc@436	3086
adam@1352	3087 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	3088 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	3089 struct tm stm = {};
adam@1392	3090 stm.tm_isdst = -1;
adam@1352	3091
adam@1352	3092 if (dot) {
adam@1352	3093 *dot = 0;
adam@1352	3094 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	3095 *dot = '.';
adam@1410	3096 char usec[] = "000000";
adam@1410	3097 int len = strlen(dot+1);
adam@1410	3098 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	3099 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	3100 return r;
adam@1352	3101 }
adam@1352	3102 else {
adam@1352	3103 *dot = '.';
adam@1444	3104 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3105 }
adam@1352	3106 }
adam@1352	3107 else {
adam@1352	3108 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3109 uw_Basis_time r = { mktime(&stm) };
adam@1365	3110 return r;
adam@1352	3111 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3112 uw_Basis_time r = { mktime(&stm) };
adam@1365	3113 return r;
adam@1352	3114 } else
adam@1444	3115 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3116 }
adam@1352	3117 }
adam@1352	3118
adamc@436	3119 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	3120 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	3121 struct tm stm = {};
adam@1392	3122 stm.tm_isdst = -1;
adamc@436	3123
adamc@438	3124 if (dot) {
adamc@438	3125 *dot = 0;
adamc@438	3126 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	3127 *dot = '.';
adam@1365	3128 {
adam@1365	3129 uw_Basis_time r = { mktime(&stm) };
adam@1365	3130 return r;
adam@1365	3131 }
adamc@438	3132 }
adamc@438	3133 else {
adamc@438	3134 *dot = '.';
adam@1444	3135 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3136 }
adamc@438	3137 }
adamc@438	3138 else {
adam@2072	3139 if (strptime(s, ctx->app->time_format, &stm) == end) {
adam@2072	3140 uw_Basis_time r = { mktime(&stm) };
adam@2072	3141 return r;
adam@2072	3142 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3143 uw_Basis_time r = { mktime(&stm) };
adam@1365	3144 return r;
adam@1365	3145 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3146 uw_Basis_time r = { mktime(&stm) };
adam@1365	3147 return r;
adam@1632	3148 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3149 uw_Basis_time r = { mktime(&stm) };
adam@1632	3150 return r;
adam@1365	3151 } else
adam@1444	3152 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3153 }
adamc@436	3154 }
adamc@457	3155
adam@1352	3156 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3157 char *end = strchr(s, 0);
adamc@939	3158 struct tm stm = {};
adam@1392	3159 stm.tm_isdst = -1;
adamc@939	3160
adam@1365	3161 if (strptime(s, fmt, &stm) == end) {
adam@1365	3162 uw_Basis_time r = { mktime(&stm) };
adam@1365	3163 return r;
adam@1365	3164 } else
adam@1444	3165 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3166 }
adamc@939	3167
adamc@742	3168 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3169 char *r = ctx->heap.front;
adamc@742	3170 uw_Basis_blob b = {len, r};
adamc@742	3171
adamc@742	3172 uw_check_heap(ctx, len);
adamc@742	3173
adam@1992	3174 if (s[0] == '\\' && s[1] == 'x') {
adam@1992	3175 s += 2;
adam@1992	3176
adam@1992	3177 while (*s) {
adam@1992	3178 int n;
adam@1992	3179 sscanf(s, "%02x", &n);
adam@1992	3180 *r++ = n;
adam@1992	3181 s += 2;
adam@1992	3182 }
adam@1992	3183 } else {
adam@1992	3184 while (*s) {
adam@1992	3185 if (s[0] == '\\') {
adam@1992	3186 if (s[1] == '\\') {
adam@1992	3187 *r++ = '\\';
adam@1992	3188 s += 2;
adam@1992	3189 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adam@1992	3190 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adam@1992	3191 s += 4;
adam@1992	3192 }
adam@1992	3193 else {
adam@1992	3194 *r++ = '\\';
adam@1992	3195 ++s;
adam@1992	3196 }
adam@1992	3197 } else {
adam@1992	3198 *r++ = s[0];
adamc@742	3199 ++s;
adamc@742	3200 }
adamc@742	3201 }
adamc@742	3202 }
adamc@742	3203
adamc@742	3204 b.size = r - ctx->heap.front;
adamc@742	3205 ctx->heap.front = r;
adam@1992	3206
adamc@742	3207 return b;
adamc@742	3208 }
adamc@742	3209
adam@1402	3210 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3211
adamc@463	3212 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3213 int len = strlen(c);
adamc@854	3214 char *p = ctx->outHeaders.start;
adamc@474	3215
adamc@1134	3216 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3217 char *p2;
adamc@474	3218 p += 13;
adamc@474	3219 p2 = strchr(p, '=');
adamc@474	3220
adamc@474	3221 if (p2) {
adamc@474	3222 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3223
adamc@474	3224 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3225 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3226 return NULL;
adamc@1052	3227 else {
adamc@1052	3228 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3229 memcpy(ret, p2+1, sz);
adamc@1052	3230 ret[sz] = 0;
adamc@1052	3231 return ret;
adamc@1052	3232 }
adamc@474	3233 }
adamc@474	3234 }
adamc@474	3235 }
adamc@463	3236
adamc@1134	3237 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3238 char *p2;
adamc@1051	3239
adamc@854	3240 while (1) {
adamc@1051	3241 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3242 if ((p2 = strchr(p, ';'))) {
adamc@1051	3243 size_t n = p2 - (p + len);
adamc@1051	3244 char *r = uw_malloc(ctx, n);
adamc@1051	3245 memcpy(r, p + 1 + len, n-1);
adamc@1051	3246 r[n-1] = 0;
adamc@1051	3247 return r;
adamc@1051	3248 } else
adamc@1051	3249 return p + 1 + len;
adamc@1134	3250 } else if ((p = strchr(p, ';')))
adamc@854	3251 p += 2;
adamc@463	3252 else
adamc@463	3253 return NULL;
adamc@463	3254 }
adamc@463	3255 }
adamc@792	3256
adamc@792	3257 return NULL;
adamc@457	3258 }
adamc@462	3259
adam@1877	3260 static void set_cookie(uw_context ctx) {
adam@1877	3261 if (ctx->usedSig)
adam@1877	3262 ctx->needsResig = 1;
adam@1877	3263 }
adam@1877	3264
adamc@1050	3265 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	3266 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3267 uw_write_header(ctx, c);
adamc@462	3268 uw_write_header(ctx, "=");
adamc@462	3269 uw_write_header(ctx, v);
adamc@466	3270 uw_write_header(ctx, "; path=");
adamc@466	3271 uw_write_header(ctx, prefix);
adamc@1050	3272 if (expires) {
adamc@1050	3273 char formatted[30];
adam@1392	3274 struct tm tm = {};
adam@1392	3275 tm.tm_isdst = -1;
adamc@1050	3276
adam@1365	3277 gmtime_r(&expires->seconds, &tm);
adamc@1050	3278
adamc@1050	3279 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3280
adamc@1050	3281 uw_write_header(ctx, "; expires=");
adamc@1050	3282 uw_write_header(ctx, formatted);
adamc@1050	3283 }
adamc@1050	3284 if (secure)
adamc@1050	3285 uw_write_header(ctx, "; secure");
adamc@462	3286 uw_write_header(ctx, "\r\n");
adam@1877	3287 set_cookie(ctx);
adamc@462	3288
adamc@462	3289 return uw_unit_v;
adamc@462	3290 }
adamc@667	3291
adamc@1050	3292 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3293 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3294 uw_write_header(ctx, c);
adamc@1050	3295 uw_write_header(ctx, "=; path=");
adamc@1050	3296 uw_write_header(ctx, prefix);
adamc@1052	3297 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3298 set_cookie(ctx);
adamc@1050	3299
adamc@1050	3300 return uw_unit_v;
adamc@1050	3301 }
adamc@1050	3302
adamc@1113	3303 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3304
adamc@682	3305 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3306 unsigned i;
adamc@682	3307 delta *d;
adamc@671	3308
adamc@682	3309 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3310 if (ctx->deltas[i].client == client)
adamc@682	3311 return &ctx->deltas[i];
adamc@671	3312
adamc@682	3313 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3314 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3315 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3316
adamc@682	3317 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3318 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3319 }
adamc@671	3320
adamc@682	3321 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3322 d->client = client;
adam@1369	3323 uw_buffer_reset(&d->msgs);
adamc@682	3324 return d;
adamc@671	3325 }
adamc@671	3326
adamc@668	3327 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3328 if (ctx->client == NULL)
adamc@682	3329 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3330
adamc@682	3331 return new_channel(ctx->client);
adamc@668	3332 }
adamc@668	3333
adamc@668	3334 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3335 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3336 size_t len;
adamc@682	3337 int preLen;
adamc@682	3338 char pre[INTS_MAX + 2];
adamc@668	3339
adamc@682	3340 len = strlen(msg);
adamc@682	3341
adamc@682	3342 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3343
adam@1369	3344 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3345 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3346 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3347
adamc@671	3348 return uw_unit_v;
adamc@668	3349 }
adamc@671	3350
adam@1327	3351 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3352 int i;
adamc@1131	3353 cleanup *cl;
adamc@1131	3354
adamc@1131	3355 if (ctx->client)
adamc@1131	3356 release_client(ctx->client);
adamc@1131	3357
adamc@1131	3358 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3359 cl->func(cl->arg);
adamc@1131	3360
adamc@1131	3361 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3362
adamc@1131	3363 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3364 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3365 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3366
adamc@1131	3367 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3368 if (ctx->transactionals[i].free)
adam@1327	3369 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3370
adam@1941	3371 if (ctx->app && ctx->transaction_started) {
adam@1941	3372 ctx->transaction_started = 0;
adam@1941	3373 return ctx->app->db_rollback(ctx);
adam@1941	3374 } else
adam@1941	3375 return 0;
adamc@1131	3376 }
adamc@1131	3377
adam@1956	3378 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	3379 const char uw_begin_html5[] = "<!DOCTYPE html><html>";
adam@1728	3380
adam@1877	3381 extern int uw_hash_blocksize;
adam@1877	3382
adam@1877	3383 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3384
adam@1877	3385 static char find_sig(char haystack) {
adam@1877	3386 int i;
adam@1877	3387 char *s = strstr(haystack, sig_intro);
adam@1877	3388
adam@1877	3389 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3390 return NULL;
phurst@1981	3391
adam@1877	3392 s += sizeof sig_intro - 1;
adam@1877	3393
adam@1877	3394 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3395 if (!isxdigit((int)s[i]))
adam@1877	3396 return NULL;
adam@1877	3397
adam@1877	3398 if (s[i] != '"')
adam@1877	3399 return NULL;
adam@1877	3400
adam@1877	3401 return s;
adam@1877	3402 }
adam@1877	3403
adam@2033	3404 static pthread_mutex_t message_send_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2033	3405
adam@1938	3406 int uw_commit(uw_context ctx) {
adamc@1104	3407 int i;
adam@1877	3408 char *sig;
adamc@1104	3409
adamc@1131	3410 if (uw_has_error(ctx)) {
adam@1327	3411 uw_rollback(ctx, 0);
adam@1938	3412 return 0;
adamc@1131	3413 }
adamc@1131	3414
adamc@1104	3415 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3416 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3417 if (ctx->transactionals[i].commit) {
adamc@1083	3418 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3419 if (uw_has_error(ctx)) {
adam@1327	3420 uw_rollback(ctx, 0);
adam@1938	3421 return 0;
adamc@1131	3422 }
adamc@1131	3423 }
adamc@771	3424
adam@2033	3425 // Here's an important lock to provide the abstraction that all messages from one transaction are sent as an atomic unit.
adam@2033	3426 if (ctx->used_deltas > 0)
adam@2033	3427 pthread_mutex_lock(&message_send_mutex);
adam@2033	3428
adam@2000	3429 if (ctx->transaction_started) {
adam@2000	3430 int code = ctx->app->db_commit(ctx);
adam@2000	3431
adam@2000	3432 if (code) {
adam@2033	3433 if (ctx->used_deltas > 0)
adam@2033	3434 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3435
adam@2000	3436 if (ctx->client)
adam@2000	3437 release_client(ctx->client);
adam@2000	3438
adam@2000	3439 if (code == -1) {
adam@2000	3440 // This case is for a serialization failure, which is not really an "error."
adam@2000	3441 // The transaction will restart, so we should rollback any transactionals
adam@2000	3442 // that triggered above.
adam@2000	3443
adam@2000	3444 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3445 if (ctx->transactionals[i].rollback != NULL)
adam@2000	3446 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2000	3447
adam@2000	3448 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3449 if (ctx->transactionals[i].free)
adam@2000	3450 ctx->transactionals[i].free(ctx->transactionals[i].data, 1);
adam@2000	3451
grrwlf@2030	3452 return 1;
adam@2000	3453 }
adam@2000	3454
adam@2000	3455 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3456 if (ctx->transactionals[i].free)
adam@2000	3457 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3458
adam@2000	3459 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@2000	3460 return 0;
adam@2000	3461 }
adam@2000	3462 }
adam@2000	3463
adamc@1104	3464 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3465 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3466 if (ctx->transactionals[i].commit) {
adamc@1083	3467 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3468 if (uw_has_error(ctx)) {
adam@2033	3469 if (ctx->used_deltas > 0)
adam@2033	3470 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3471
adam@2033	3472 if (ctx->client)
adam@2033	3473 release_client(ctx->client);
adam@2033	3474
adam@2033	3475 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3476 if (ctx->transactionals[i].rollback != NULL)
adam@2033	3477 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2033	3478
adam@2033	3479 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3480 if (ctx->transactionals[i].free)
adam@2033	3481 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3482
adam@1938	3483 return 0;
adamc@1131	3484 }
adamc@1131	3485 }
adamc@1131	3486
adamc@682	3487 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3488 delta *d = &ctx->deltas[i];
adamc@682	3489 client *c = find_client(d->client);
adamc@682	3490
adam@1551	3491 assert (c != NULL);
adam@1551	3492 assert(c->mode == USED);
adamc@682	3493
adam@1447	3494 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3495 }
adamc@682	3496
adam@2033	3497 if (ctx->used_deltas > 0)
adam@2033	3498 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3499
adamc@682	3500 if (ctx->client)
adamc@685	3501 release_client(ctx->client);
adamc@771	3502
adamc@1104	3503 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3504 if (ctx->transactionals[i].free)
adam@1327	3505 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3506
vshabanoff@1726	3507 uw_check(ctx, 1);
vshabanoff@1726	3508 *ctx->page.front = 0;
adam@1413	3509
adam@1956	3510 if (!ctx->returning_indirectly
adam@1956	3511 && (ctx->app->is_html5
adam@1956	3512 ? !strncmp(ctx->page.start, uw_begin_html5, sizeof uw_begin_html5 - 1)
adam@1956	3513 : !strncmp(ctx->page.start, uw_begin_xhtml, sizeof uw_begin_xhtml - 1))) {
adam@1728	3514 char *s;
adam@1728	3515
adam@1728	3516 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1956	3517 s = ctx->page.start + (ctx->app->is_html5 ? sizeof uw_begin_html5 - 1 : sizeof uw_begin_xhtml - 1);
adam@1728	3518 s = strchr(s, '<');
adam@1728	3519 if (s == NULL) {
adam@1728	3520 // Weird. Document has no tags!
adam@1728	3521
adam@1728	3522 uw_write(ctx, "<head></head><body></body>");
adam@1728	3523 uw_check(ctx, 1);
adam@1728	3524 *ctx->page.front = 0;
adam@1728	3525 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3526 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3527
adam@1729	3528 // Any freeform JavaScript to include?
adam@1729	3529 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3530 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3531 size_t lenP = lenH + 40 + len;
adam@1729	3532 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3533
adam@1729	3534 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3535 start += ctx->page.start - oldPage;
adam@1729	3536 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3537 ctx->page.front += lenP;
adam@1729	3538 memcpy(start, ctx->script_header, lenH);
adam@1729	3539 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3540 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3541 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3542 } else {
adam@1729	3543 size_t lenH = strlen(ctx->script_header);
adam@1729	3544 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3545
adam@1729	3546 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3547 start += ctx->page.start - oldPage;
adam@1729	3548 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3549 ctx->page.front += lenH;
adam@1729	3550 memcpy(start, ctx->script_header, lenH);
adam@1729	3551 }
adam@1728	3552 } else {
adam@1728	3553 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3554
adam@1729	3555 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3556 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3557 size_t lenP = lenH + 53 + len;
adam@1729	3558 char start = s, oldPage = ctx->page.start;
adam@1729	3559
adam@1729	3560 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3561 start += ctx->page.start - oldPage;
adam@1729	3562 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3563 ctx->page.front += lenP;
adam@1729	3564 memcpy(start, "<head>", 6);
adam@1729	3565 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3566 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3567 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3568 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3569 } else {
adam@1729	3570 size_t lenH = strlen(ctx->script_header);
adam@1729	3571 size_t lenP = lenH + 13;
adam@1729	3572 char start = s, oldPage = ctx->page.start;
adam@1729	3573
adam@1729	3574 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3575 start += ctx->page.start - oldPage;
adam@1729	3576 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3577 ctx->page.front += lenP;
adam@1729	3578 memcpy(start, "<head>", 6);
adam@1729	3579 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3580 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3581 }
adamc@916	3582 }
adamc@916	3583 }
adam@1877	3584
adam@1877	3585 if (ctx->needsResig) {
adam@1877	3586 sig = find_sig(ctx->page.start);
adam@1877	3587 if (sig) {
adam@1877	3588 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3589
adam@1877	3590 do {
adam@1877	3591 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3592 sig = find_sig(sig);
adam@1877	3593 } while (sig);
adam@1877	3594 }
adam@1877	3595 }
adam@1938	3596
adam@1938	3597 return 0;
adamc@671	3598 }
adamc@671	3599
adamc@683	3600
adamc@1113	3601 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3602
adam@2001	3603 int uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3604 uw_callback_with_retry free) {
adamc@771	3605 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3606 if (ctx->used_transactionals+1 > uw_transactionals_max)
adam@2001	3607 // Exceeded limit on number of transactionals.
adam@2001	3608 return -1;
adamc@1084	3609 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3610 ++ctx->n_transactionals;
adamc@771	3611 }
adamc@771	3612
adamc@771	3613 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3614 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3615 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3616 ctx->transactionals[ctx->used_transactionals++].free = free;
adam@2001	3617
adam@2001	3618 return 0;
adamc@771	3619 }
adamc@771	3620
adamc@683	3621
adamc@683	3622 // "Garbage collection"
adamc@683	3623
adamc@1121	3624 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3625 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3626
adamc@1121	3627 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3628 int r = setjmp(ctx->jmp_buf);
adamc@683	3629
adamc@1121	3630 if (r == 0)
adamc@1121	3631 uw_do_expunge(ctx, cli, data);
adamc@1121	3632 else
adamc@1121	3633 ctx->app->db_rollback(ctx);
adamc@1121	3634
adamc@1121	3635 uw_post_expunge(ctx, data);
adamc@683	3636
adamc@683	3637 return r;
adamc@683	3638 }
adamc@683	3639
adamc@683	3640 void uw_prune_clients(uw_context ctx) {
adamc@683	3641 client c, next, *prev = NULL;
adamc@683	3642 time_t cutoff;
adamc@683	3643
adamc@1094	3644 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3645
adamc@683	3646 pthread_mutex_lock(&clients_mutex);
adam@1707	3647 pruning_thread = pthread_self();
adam@1707	3648 pruning_thread_initialized = 1;
adamc@683	3649
adamc@683	3650 for (c = clients_used; c; c = next) {
adamc@683	3651 next = c->next;
adamc@683	3652 pthread_mutex_lock(&c->lock);
adamc@685	3653 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3654 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3655 if (prev)
adamc@683	3656 prev->next = next;
adamc@683	3657 else
adamc@683	3658 clients_used = next;
adamc@683	3659 while (fk == UNLIMITED_RETRY) {
adam@1941	3660 uw_reset(ctx);
adamc@1121	3661 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3662 if (fk == UNLIMITED_RETRY)
adamc@684	3663 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3664 }
adamc@684	3665 if (fk == SUCCESS)
adamc@684	3666 free_client(c);
adamc@1121	3667 else
adamc@856	3668 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3669 }
adamc@683	3670 else
adamc@683	3671 prev = c;
adamc@683	3672 pthread_mutex_unlock(&c->lock);
adamc@683	3673 }
adamc@683	3674
adamc@683	3675 pthread_mutex_unlock(&clients_mutex);
adamc@683	3676 }
adamc@687	3677
adamc@687	3678 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3679 int r = setjmp(ctx->jmp_buf);
adamc@687	3680
adamc@687	3681 if (r == 0) {
adam@1936	3682 uw_ensure_transaction(ctx);
adamc@1094	3683 ctx->app->initializer(ctx);
adamc@1094	3684 if (ctx->app->db_commit(ctx))
adamc@687	3685 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3686 }
adamc@687	3687
adamc@687	3688 return r;
adamc@687	3689 }
adamc@717	3690
adamc@1065	3691 static int url_bad(uw_Basis_string s) {
adamc@1065	3692 for (; *s; ++s)
adamc@1153	3693 if (!isgraph((int)*s))
adamc@1065	3694 return 1;
adamc@1065	3695
adamc@1065	3696 return 0;
adamc@1065	3697 }
adamc@1065	3698
adamc@717	3699 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3700 if (url_bad(s))
adamc@1065	3701 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3702 if (ctx->app->check_url(s))
adamc@770	3703 return s;
adamc@770	3704 else
adamc@770	3705 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3706 }
adamc@734	3707
adamc@770	3708 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3709 if (url_bad(s))
adamc@1065	3710 return NULL;
adamc@1094	3711 if (ctx->app->check_url(s))
adamc@770	3712 return s;
adamc@770	3713 else
adamc@770	3714 return NULL;
adamc@770	3715 }
adamc@770	3716
adam@1465	3717 static int mime_format(const char *s) {
adamc@770	3718 for (; *s; ++s)
grrwlf@2024	3719 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.' && *s != '+')
adamc@770	3720 return 0;
adamc@770	3721
adamc@770	3722 return 1;
adamc@770	3723 }
adamc@770	3724
adamc@741	3725 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3726 if (!mime_format(s))
adamc@770	3727 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3728
adamc@1094	3729 if (ctx->app->check_mime(s))
adamc@770	3730 return s;
adamc@770	3731 else
adamc@770	3732 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3733 }
adamc@770	3734
adamc@770	3735 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3736 if (!mime_format(s))
adamc@770	3737 return NULL;
adamc@770	3738
adamc@1094	3739 if (ctx->app->check_mime(s))
adamc@770	3740 return s;
adamc@770	3741 else
adamc@770	3742 return NULL;
adamc@741	3743 }
adamc@741	3744
adam@1465	3745 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3746 if (!mime_format(s))
adam@1465	3747 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3748
adam@1465	3749 if (ctx->app->check_requestHeader(s))
adam@1465	3750 return s;
adam@1465	3751 else
adam@1465	3752 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3753 }
adam@1465	3754
adam@1465	3755 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3756 if (!mime_format(s))
adam@1465	3757 return NULL;
adam@1465	3758
adam@1465	3759 if (ctx->app->check_requestHeader(s))
adam@1465	3760 return s;
adam@1465	3761 else
adam@1465	3762 return NULL;
adam@1465	3763 }
adam@1465	3764
adam@1465	3765 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3766 if (!mime_format(s))
adam@1465	3767 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3768
adam@1465	3769 if (ctx->app->check_responseHeader(s))
adam@1465	3770 return s;
adam@1465	3771 else
adam@1465	3772 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3773 }
adam@1465	3774
adam@1799	3775 static int envVar_format(const char *s) {
adam@1799	3776 for (; *s; ++s)
adam@1799	3777 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3778 return 0;
adam@1799	3779
adam@1799	3780 return 1;
adam@1799	3781 }
adam@1799	3782
adam@1465	3783 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3784 if (!envVar_format(s))
adam@1465	3785 return NULL;
adam@1465	3786
adam@1465	3787 if (ctx->app->check_responseHeader(s))
adam@1465	3788 return s;
adam@1465	3789 else
adam@1465	3790 return NULL;
adam@1465	3791 }
adam@1465	3792
adam@1799	3793 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3794 if (!envVar_format(s))
adam@1799	3795 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3796
adam@1799	3797 if (ctx->app->check_envVar(s))
adam@1799	3798 return s;
adam@1799	3799 else
adam@1799	3800 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3801 }
adam@1799	3802
adam@1799	3803 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3804 if (!mime_format(s))
adam@1799	3805 return NULL;
adam@1799	3806
adam@1799	3807 if (ctx->app->check_envVar(s))
adam@1799	3808 return s;
adam@1799	3809 else
adam@1799	3810 return NULL;
adam@1799	3811 }
adam@1799	3812
adam@1465	3813 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3814 return uw_Basis_requestHeader(ctx, name);
adam@1465	3815 }
adam@1465	3816
adam@1465	3817 static int mime_value_format(const char *s) {
adam@1465	3818 for (; *s; ++s)
adam@1465	3819 if (s == '\r' \|\| s == '\n')
adam@1465	3820 return 0;
adam@1465	3821
adam@1465	3822 return 1;
adam@1465	3823 }
adam@1465	3824
adam@1465	3825 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3826 if (!mime_value_format(value))
adam@1465	3827 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3828
adam@1465	3829 uw_write_header(ctx, name);
adam@1465	3830 uw_write_header(ctx, ": ");
adam@1465	3831 uw_write_header(ctx, value);
adam@1465	3832 uw_write_header(ctx, "\r\n");
adam@1465	3833
adam@1465	3834 return uw_unit_v;
adam@1465	3835 }
adam@1465	3836
adam@1799	3837 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1993	3838 if (ctx->get_env)
adam@1993	3839 return ctx->get_env(ctx->get_env_data, name);
adam@1993	3840 else
adam@1994	3841 return getenv(name);
adam@1799	3842 }
adam@1799	3843
adamc@734	3844 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3845 return s ? s : "";
adamc@734	3846 }
adamc@734	3847
adamc@734	3848 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3849 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3850 int i;
phurst@1981	3851
adamc@734	3852 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3853 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3854
adamc@734	3855 return r;
adamc@734	3856 }
adamc@734	3857
adam@1512	3858 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3859 * optimizations that would enable timing attacks. See:
adam@1512	3860 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3861 */
adam@1512	3862 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3863 int i, x = 0, len1 = strlen(s1);
adam@1512	3864
adam@1512	3865 if (len1 != strlen(s2)) return 0;
adam@1512	3866
adam@1512	3867 for (i = 0; i < len1; ++i) {
adam@1512	3868 __asm__ __volatile__ ("");
adam@1512	3869 x \|= s1[i] ^ s2[i];
adam@1512	3870 }
adam@1512	3871
adam@1512	3872 return x == 0;
adam@1512	3873 }
adam@1512	3874
adamc@734	3875 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3876 ctx->usedSig = 1;
adamc@1094	3877 return ctx->app->cookie_sig(ctx);
adamc@734	3878 }
adamc@737	3879
adamc@737	3880 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3881 return f.name;
adamc@737	3882 }
adamc@737	3883
adamc@740	3884 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3885 return f.type;
adamc@740	3886 }
adamc@740	3887
adamc@745	3888 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3889 return b.size;
adamc@745	3890 }
adamc@745	3891
adamc@1119	3892 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3893 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3894
adamc@1119	3895 return b;
adamc@1119	3896 }
adamc@1119	3897
adamc@737	3898 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3899 return f.data;
adamc@737	3900 }
adamc@741	3901
adam@1347	3902 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3903 return pb.type;
adam@1347	3904 }
adam@1347	3905
adam@1347	3906 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3907 return pb.data;
adam@1347	3908 }
adam@1347	3909
adam@1471	3910 static char *old_headers(uw_context ctx) {
adam@1471	3911 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3912 return NULL;
adam@1471	3913 else {
adam@1471	3914 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3915
adam@1471	3916 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3917 return NULL;
adam@1471	3918 else {
adam@1471	3919 s = strchr(s+15, '\n');
adam@1471	3920 if (s == NULL)
adam@1471	3921 return NULL;
adam@1471	3922 else
adam@1471	3923 return uw_strdup(ctx, s+1);
adam@1471	3924 }
adam@1471	3925 }
adam@1471	3926 }
adam@1471	3927
adamc@741	3928 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3929 cleanup *cl;
adamc@741	3930 int len;
adam@1471	3931 char *oldh;
adamc@741	3932
adam@1451	3933 if (!ctx->allowed_to_return_indirectly)
adam@1451	3934 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3935
adamc@1065	3936 ctx->returning_indirectly = 1;
adam@1471	3937 oldh = old_headers(ctx);
adam@1369	3938 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3939 uw_buffer_reset(&ctx->page);
adamc@741	3940
adamc@856	3941 uw_write_header(ctx, on_success);
adamc@856	3942 uw_write_header(ctx, "Content-Type: ");
adamc@741	3943 uw_write_header(ctx, mimeType);
adam@1934	3944 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369	3945 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3946 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3947 ctx->outHeaders.front += len;
adamc@1066	3948 uw_write_header(ctx, "\r\n");
adam@1471	3949 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3950
adam@1369	3951 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3952
adamc@741	3953 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3954 cl->func(cl->arg);
adamc@741	3955
adamc@741	3956 ctx->cleanup_front = ctx->cleanup;
adamc@741	3957
adamc@1065	3958 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3959 }
adamc@1065	3960
adam@2046	3961 void uw_replace_page(uw_context ctx, const char *data, size_t size) {
adam@2046	3962 uw_buffer_reset(&ctx->page);
adam@2046	3963 ctx_uw_buffer_append(ctx, "page", &ctx->page, data, size);
adam@2046	3964 }
adam@2046	3965
adam@1932	3966 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932	3967 cleanup *cl;
adam@1932	3968 int len;
adam@1932	3969 char *oldh;
adam@1932	3970
adam@1932	3971 if (!ctx->allowed_to_return_indirectly)
adam@1932	3972 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932	3973
adam@1932	3974 ctx->returning_indirectly = 1;
adam@1932	3975 oldh = old_headers(ctx);
adam@1932	3976 uw_buffer_reset(&ctx->outHeaders);
adam@1932	3977
adam@1932	3978 uw_write_header(ctx, on_success);
adam@1932	3979 uw_write_header(ctx, "Content-Type: ");
adam@1932	3980 uw_write_header(ctx, mimeType);
adam@1934	3981 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932	3982 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932	3983 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932	3984 ctx->outHeaders.front += len;
adam@1932	3985 uw_write_header(ctx, "\r\n");
adam@1932	3986 if (oldh) uw_write_header(ctx, oldh);
adam@1932	3987
adam@1932	3988 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932	3989 cl->func(cl->arg);
adam@1932	3990
adam@1932	3991 ctx->cleanup_front = ctx->cleanup;
adam@1932	3992
adam@1932	3993 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932	3994 }
adam@1932	3995
adamc@1065	3996 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3997 cleanup *cl;
adamc@1066	3998 char *s;
adam@1471	3999 char *oldh;
adamc@1065	4000
adam@1451	4001 if (!ctx->allowed_to_return_indirectly)
adam@1451	4002 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	4003
adamc@1065	4004 ctx->returning_indirectly = 1;
adam@1471	4005 oldh = old_headers(ctx);
adam@1369	4006 uw_buffer_reset(&ctx->page);
adam@1369	4007 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	4008 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	4009 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	4010 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	4011
adam@1409	4012 if (on_success[0])
adam@1409	4013 uw_write_header(ctx, on_redirect);
adam@1409	4014 else
adam@1409	4015 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	4016 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	4017 if (s) {
adamc@1066	4018 char *s2;
adam@1409	4019 if (s[0] == '\n') ++s;
adam@1409	4020 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	4021 *s2 = 0;
adamc@1066	4022 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	4023 uw_write_header(ctx, s);
adamc@1066	4024 uw_write_header(ctx, "\n");
adamc@1066	4025 }
adamc@1066	4026 }
adamc@1066	4027 }
adamc@1066	4028
adamc@1065	4029 uw_write_header(ctx, "Location: ");
adamc@1065	4030 uw_write_header(ctx, url);
adamc@1065	4031 uw_write_header(ctx, "\r\n\r\n");
adam@1471	4032 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	4033
adamc@1065	4034 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	4035 cl->func(cl->arg);
adamc@1065	4036
adamc@1065	4037 ctx->cleanup_front = ctx->cleanup;
adamc@1065	4038
adamc@1065	4039 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	4040 }
adamc@874	4041
adamc@874	4042 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	4043 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	4044
adamc@874	4045 for (; *s; ++s) {
adamc@874	4046 if (s[0] == '\'') {
adamc@874	4047 *r++ = '\'';
adamc@874	4048 for (++s; *s; ++s) {
adamc@874	4049 if (s[0] == '\'') {
adamc@874	4050 *r++ = '\'';
adamc@874	4051 break;
adamc@874	4052 } else if (s[0] == '\\') {
adam@1467	4053 *r++ = '\\';
adam@1467	4054 *r++ = s[1];
adam@1467	4055 ++s;
adamc@874	4056 } else
adamc@874	4057 *r++ = s[0];
adamc@874	4058 }
adamc@874	4059 if (*s == 0) break;
adam@1467	4060 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	4061 s += 3;
adamc@874	4062 else
adamc@874	4063 *r++ = s[0];
adamc@874	4064 }
adamc@874	4065
adam@1467	4066 *r = 0;
adam@1467	4067 return ret;
adamc@874	4068 }
adamc@874	4069
adamc@922	4070 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	4071 va_list ap;
adamc@922	4072 size_t len = 1;
adamc@922	4073 char s, r, *s2;
phurst@1981	4074
adamc@922	4075 va_start(ap, ctx);
adamc@922	4076 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4077 len += strlen(s);
adamc@922	4078 va_end(ap);
adamc@922	4079
adamc@922	4080 r = uw_malloc(ctx, len);
adamc@922	4081 va_start(ap, ctx);
adamc@922	4082 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4083 while (*s)
adamc@922	4084 s2++ = s++;
adamc@922	4085 va_end(ap);
adamc@922	4086 *s2 = 0;
adamc@922	4087
adamc@922	4088 return r;
adamc@922	4089 }
adamc@1006	4090
adam@1365	4091 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	4092
adamc@1006	4093 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	4094 uw_Basis_time r = { time(NULL) };
adam@1365	4095 return r;
adamc@1006	4096 }
adamc@1061	4097
adam@1369	4098 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	4099 tm.seconds += n;
adam@1365	4100 return tm;
adamc@1138	4101 }
adamc@1138	4102
adam@1514	4103 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	4104 return difftime(tm2.seconds, tm1.seconds);
adam@1514	4105 }
adam@1514	4106
adam@1685	4107 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	4108 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	4109 }
adam@1685	4110
adam@2187	4111 uw_Basis_time uw_Basis_fromMilliseconds(uw_context ctx, uw_Basis_int n) {
adam@2187	4112 uw_Basis_time tm = {n / 1000, n % 1000 * 1000};
adam@2187	4113 return tm;
adam@2187	4114 }
adam@2187	4115
adam@1685	4116 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	4117 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	4118 }
adam@1685	4119
adam@1514	4120 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	4121 return tm.seconds;
adam@1514	4122 }
adam@1514	4123
phurst@1971	4124 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	4125 struct tm tm = { .tm_year = year - 1900, .tm_mon = month, .tm_mday = day,
adam@2015	4126 .tm_hour = hour, .tm_min = minute, .tm_sec = second,
adam@2015	4127 .tm_isdst = -1 };
phurst@1984	4128 uw_Basis_time r = { timelocal(&tm) };
phurst@1971	4129 return r;
phurst@1971	4130 }
phurst@1971	4131
phurst@1971	4132 uw_Basis_int uw_Basis_datetimeYear(uw_context ctx, uw_Basis_time time) {
phurst@1971	4133 struct tm tm;
phurst@1982	4134 localtime_r(&time.seconds, &tm);
phurst@1971	4135 return tm.tm_year + 1900;
phurst@1971	4136 }
phurst@1971	4137
phurst@1971	4138 uw_Basis_int uw_Basis_datetimeMonth(uw_context ctx, uw_Basis_time time) {
phurst@1971	4139 struct tm tm;
phurst@1982	4140 localtime_r(&time.seconds, &tm);
phurst@1971	4141 return tm.tm_mon;
phurst@1971	4142 }
phurst@1971	4143
phurst@1971	4144 uw_Basis_int uw_Basis_datetimeDay(uw_context ctx, uw_Basis_time time) {
phurst@1971	4145 struct tm tm;
phurst@1982	4146 localtime_r(&time.seconds, &tm);
phurst@1971	4147 return tm.tm_mday;
phurst@1971	4148 }
phurst@1971	4149
phurst@1971	4150 uw_Basis_int uw_Basis_datetimeHour(uw_context ctx, uw_Basis_time time) {
phurst@1971	4151 struct tm tm;
phurst@1982	4152 localtime_r(&time.seconds, &tm);
phurst@1971	4153 return tm.tm_hour;
phurst@1971	4154 }
phurst@1971	4155
phurst@1971	4156 uw_Basis_int uw_Basis_datetimeMinute(uw_context ctx, uw_Basis_time time) {
phurst@1971	4157 struct tm tm;
phurst@1982	4158 localtime_r(&time.seconds, &tm);
phurst@1971	4159 return tm.tm_min;
phurst@1971	4160 }
phurst@1971	4161
phurst@1971	4162 uw_Basis_int uw_Basis_datetimeSecond(uw_context ctx, uw_Basis_time time) {
phurst@1971	4163 struct tm tm;
phurst@1982	4164 localtime_r(&time.seconds, &tm);
phurst@1971	4165 return tm.tm_sec;
phurst@1971	4166 }
phurst@1971	4167
phurst@1973	4168 uw_Basis_int uw_Basis_datetimeDayOfWeek(uw_context ctx, uw_Basis_time time) {
phurst@1973	4169 struct tm tm;
phurst@1982	4170 localtime_r(&time.seconds, &tm);
phurst@1973	4171 return tm.tm_wday;
phurst@1973	4172 }
phurst@1971	4173
phurst@1971	4174
adamc@1061	4175 void uw_get_global(uw_context ctx, char name) {
adamc@1061	4176 int i;
adamc@1061	4177
adamc@1061	4178 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4179 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	4180 return ctx->globals[i].data;
adamc@1061	4181
adamc@1061	4182 return NULL;
adamc@1061	4183 }
adamc@1061	4184
adamc@1113	4185 size_t uw_globals_max = SIZE_MAX;
adamc@1113	4186
adamc@1061	4187 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	4188 int i;
adamc@1061	4189
adamc@1061	4190 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4191 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	4192 if (ctx->globals[i].free)
adamc@1061	4193 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	4194 ctx->globals[i].data = data;
adamc@1061	4195 ctx->globals[i].free = free;
adamc@1061	4196 return;
adamc@1061	4197 }
adamc@1089	4198
adamc@1113	4199 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	4200 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	4201
adamc@1061	4202 ++ctx->n_globals;
adamc@1061	4203 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	4204 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	4205 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	4206 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	4207 }
adamc@1061	4208
adamc@1061	4209 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	4210 return !!isalnum((int)c);
adamc@1061	4211 }
adamc@1061	4212
adamc@1061	4213 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	4214 return !!isalpha((int)c);
adamc@1061	4215 }
adamc@1061	4216
adamc@1061	4217 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	4218 return !!isblank((int)c);
adamc@1061	4219 }
adamc@1061	4220
adamc@1061	4221 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	4222 return !!iscntrl((int)c);
adamc@1061	4223 }
adamc@1061	4224
adamc@1061	4225 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4226 return !!isdigit((int)c);
adamc@1061	4227 }
adamc@1061	4228
adamc@1061	4229 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	4230 return !!isgraph((int)c);
adamc@1061	4231 }
adamc@1061	4232
adamc@1061	4233 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4234 return !!islower((int)c);
adamc@1061	4235 }
adamc@1061	4236
adamc@1061	4237 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	4238 return !!isprint((int)c);
adamc@1061	4239 }
adamc@1061	4240
adamc@1061	4241 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	4242 return !!ispunct((int)c);
adamc@1061	4243 }
adamc@1061	4244
adamc@1061	4245 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	4246 return !!isspace((int)c);
adamc@1061	4247 }
adamc@1063	4248
adamc@1061	4249 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4250 return !!isupper((int)c);
adamc@1061	4251 }
adamc@1061	4252
adamc@1061	4253 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4254 return !!isxdigit((int)c);
adamc@1061	4255 }
adamc@1061	4256
adamc@1061	4257 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4258 return tolower((int)c);
adamc@1061	4259 }
adamc@1061	4260
adamc@1061	4261 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4262 return toupper((int)c);
adamc@1061	4263 }
adamc@1066	4264
adamc@1128	4265 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	4266 return (unsigned char)c;
adamc@1128	4267 }
adamc@1128	4268
adamc@1128	4269 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	4270 return n;
adamc@1128	4271 }
adamc@1128	4272
adamc@1066	4273 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	4274 return ctx->current_url;
adamc@1066	4275 }
adamc@1066	4276
adamc@1066	4277 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	4278 ctx->current_url = s;
adamc@1066	4279 }
adamc@1114	4280
adamc@1114	4281 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	4282 ctx->deadline = n;
adamc@1114	4283 }
adamc@1114	4284
adamc@1114	4285 void uw_check_deadline(uw_context ctx) {
adamc@1114	4286 if (uw_time > ctx->deadline)
adamc@1114	4287 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	4288 }
adamc@1115	4289
adamc@1115	4290 size_t uw_database_max = SIZE_MAX;
adamc@1120	4291
adam@1389	4292 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@2143	4293 if (ctx->loggers->log_debug)
adam@2143	4294 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@2143	4295 else
adam@2143	4296 fprintf(stderr, "%s\n", s);
adam@1389	4297 return 0;
adam@1389	4298 }
adam@1389	4299
adamc@1120	4300 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
grrwlf@1997	4301 if (ctx->loggers->log_debug)
grrwlf@1997	4302 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@1334	4303 else
adam@1334	4304 fprintf(stderr, "%s\n", s);
adamc@1120	4305 return uw_unit_v;
adamc@1120	4306 }
adamc@1250	4307
adamc@1250	4308 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@2104	4309 int r = my_rand();
adam@2104	4310
adam@2104	4311 if (r >= 0)
adam@2104	4312 return r;
adam@1486	4313 else
adam@1486	4314 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	4315 }
adam@1347	4316
adam@1347	4317 void uw_noPostBody(uw_context ctx) {
adam@1347	4318 ctx->hasPostBody = 0;
adam@1347	4319 }
adam@1347	4320
adam@1347	4321 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	4322 ctx->hasPostBody = 1;
adam@1347	4323 ctx->postBody = pb;
adam@1347	4324 }
adam@1347	4325
adam@1347	4326 int uw_hasPostBody(uw_context ctx) {
adam@1347	4327 return ctx->hasPostBody;
adam@1347	4328 }
adam@1347	4329
adam@1386	4330 void uw_isPost(uw_context ctx) {
adam@1386	4331 ctx->isPost = 1;
adam@1386	4332 }
adam@1386	4333
adam@1386	4334 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4335 return ctx->isPost;
adam@1386	4336 }
adam@1386	4337
adam@1485	4338 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4339 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4340 }
adam@1485	4341
adam@1370	4342 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4343 ctx->queryString = s;
adam@1370	4344 }
adam@1370	4345
adam@1370	4346 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4347 return ctx->queryString;
adam@1370	4348 }
adam@1370	4349
adam@1347	4350 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4351 if (ctx->hasPostBody)
adam@1347	4352 return ctx->postBody;
adam@1347	4353 else
adam@1347	4354 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4355 }
adam@1349	4356
adam@1349	4357 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4358 int r = setjmp(ctx->jmp_buf);
adam@1349	4359
adam@1349	4360 if (r == 0) {
adam@1936	4361 uw_ensure_transaction(ctx);
adam@1418	4362
adam@1349	4363 callback(ctx);
adam@1349	4364 }
adam@1349	4365
adam@1349	4366 return r;
adam@1349	4367 }
adam@1360	4368
adam@1360	4369 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4370 char buf[14];
adam@1397	4371 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4372 }
adam@1365	4373
adam@1365	4374 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4375 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	4376 }
adam@1365	4377
adam@1365	4378 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@2034	4379 return !!(t1.seconds < t2.seconds \|\| (t1.seconds == t2.seconds && t1.microseconds < t2.microseconds));
adam@1365	4380 }
adam@1365	4381
adam@1365	4382 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4383 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4384 }
adam@1365	4385
adam@1372	4386 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4387 struct tm stm = {};
adam@1375	4388 char *end = strchr(s, 0);
adam@1449	4389 stm.tm_isdst = -1;
adam@1375	4390
adam@1632	4391 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4392 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4393
kkallio@1448	4394 r->seconds = timegm(&stm);
adam@1373	4395 r->microseconds = 0;
adam@1373	4396
adam@1373	4397 return r;
adam@1374	4398 }
adam@1374	4399 else
adam@1373	4400 return NULL;
adam@1372	4401 }
adam@1407	4402
adam@1407	4403 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4404 int r = setjmp(ctx->jmp_buf);
adam@1407	4405
adam@1407	4406 if (ctx->app->on_error) {
adam@1407	4407 if (r == 0) {
adam@1936	4408 uw_ensure_transaction(ctx);
adam@1407	4409
adam@1409	4410 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4411 if (on_success[0])
adam@1409	4412 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4413 else
adam@1409	4414 uw_write_header(ctx, "Status: ");
adam@1409	4415 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919	4416 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1956	4417 uw_write(ctx, ctx->app->is_html5 ? uw_begin_html5 : uw_begin_xhtml);
adam@1407	4418 ctx->app->on_error(ctx, msg);
adam@1407	4419 uw_write(ctx, "</html>");
adam@1407	4420 }
adam@1407	4421
adam@1407	4422 return r;
adam@1407	4423 } else
adam@1407	4424 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4425 }
adam@1451	4426
adam@1451	4427 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4428 ctx->allowed_to_return_indirectly = 1;
adam@1451	4429 }
adam@1483	4430
adam@1556	4431 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4432 int len;
adam@1703	4433 char *r;
adam@1703	4434
adam@1703	4435 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4436 r = ctx->heap.front;
adam@1703	4437 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4438 ctx->heap.front += len+1;
adam@1703	4439 return r;
adam@1556	4440 }
adam@1571	4441
adam@1571	4442 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4443 return n;
adam@1571	4444 }
adam@1571	4445
adam@1571	4446 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4447 return ceil(n);
adam@1571	4448 }
adam@1571	4449
adam@1571	4450 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4451 return trunc(n);
adam@1571	4452 }
adam@1571	4453
adam@1571	4454 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4455 return round(n);
adam@1571	4456 }
adam@1755	4457
adam@1755	4458 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755	4459 char *p;
adam@1755	4460
adam@1755	4461 for (p = s; *p; ++p) {
adam@1755	4462 char c = *p;
adam@1801	4463 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755	4464 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4465 }
adam@1755	4466
adam@1755	4467 return s;
adam@1755	4468 }
adam@1755	4469
adam@1755	4470 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4471 char *p;
adam@1755	4472
adam@1755	4473 for (p = s; *p; ++p) {
adam@1755	4474 char c = *p;
adam@1801	4475 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4476 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4477 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4478 }
adam@1755	4479
adam@1755	4480 return s;
adam@1755	4481 }
adam@1755	4482
adam@1755	4483 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4484 char *p;
adam@1755	4485
adam@1755	4486 if (!*s)
adam@1755	4487 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4488
adam@1801	4489 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4490 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4491
adam@1755	4492 for (p = s; *p; ++p) {
adam@1755	4493 char c = *p;
adam@1801	4494 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4495 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4496 }
adam@1755	4497
adam@1755	4498 return s;
adam@1755	4499 }
adam@1787	4500
adam@1787	4501 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4502 return f.name;
adam@1787	4503 }
adam@1787	4504
adam@1787	4505 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4506 return f.value;
adam@1787	4507 }
adam@1787	4508
adam@1787	4509 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4510 return f.remaining;
adam@1787	4511 }
adam@1787	4512
adam@1787	4513 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4514 char *unurl;
adam@1787	4515 uw_Basis_postField *f;
adam@1787	4516
adam@1788	4517 if (!ctx->hasPostBody)
adam@1788	4518 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4519
adam@1788	4520 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4521 return NULL;
adam@1787	4522
adam@1787	4523 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4524 unurl = s;
adam@1787	4525 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4526 s = strchr(s, 0);
adam@1788	4527 if (!s)
adam@1788	4528 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4529 ++s;
adam@1788	4530 unurl = s;
adam@1788	4531 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4532 s = strchr(s, 0);
adam@1788	4533 if (!s)
adam@1788	4534 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4535 f->remaining = s+1;
adam@1787	4536
adam@1787	4537 return f;
adam@1787	4538 }
adam@2008	4539
adam@2008	4540 uw_Basis_string uw_Basis_blessData(uw_context ctx, uw_Basis_string s) {
adam@2008	4541 char *p = s;
adam@2008	4542
adam@2008	4543 for (; *p; ++p)
adam@2008	4544 if (!isalnum(p) && p != '-' && *p != '_')
adam@2008	4545 uw_error(ctx, FATAL, "Illegal HTML5 data-* attribute: %s", s);
adam@2008	4546
adam@2008	4547 return s;
adam@2008	4548 }
adam@2073	4549
adam@2073	4550 int uw_remoteSock(uw_context ctx) {
adam@2073	4551 return ctx->remoteSock;
adam@2073	4552 }
adam@2073	4553
adam@2073	4554 void uw_set_remoteSock(uw_context ctx, int sock) {
adam@2073	4555 ctx->remoteSock = sock;
adam@2073	4556 }
ziv@2234	4557
ziv@2234	4558
ziv@2234	4559 // Sqlcache
ziv@2234	4560
ziv@2284	4561 typedef struct uw_Sqlcache_Entry {
ziv@2284	4562 char *key;
ziv@2284	4563 uw_Sqlcache_Value *value;
ziv@2284	4564 unsigned long timeInvalid;
ziv@2284	4565 UT_hash_handle hh;
ziv@2284	4566 } uw_Sqlcache_Entry;
ziv@2284	4567
ziv@2288	4568 static void uw_Sqlcache_freeValue(uw_Sqlcache_Value *value) {
ziv@2234	4569 if (value) {
ziv@2234	4570 free(value->result);
ziv@2234	4571 free(value->output);
ziv@2234	4572 free(value);
ziv@2234	4573 }
ziv@2234	4574 }
ziv@2234	4575
ziv@2288	4576 static void uw_Sqlcache_freeEntry(uw_Sqlcache_Entry* entry) {
ziv@2279	4577 if (entry) {
ziv@2279	4578 free(entry->key);
ziv@2279	4579 uw_Sqlcache_freeValue(entry->value);
ziv@2279	4580 free(entry);
ziv@2279	4581 }
ziv@2279	4582 }
ziv@2279	4583
ziv@2279	4584 // TODO: pick a number.
ziv@2288	4585 static unsigned int uw_Sqlcache_maxSize = 1234567890;
ziv@2288	4586
ziv@2288	4587 static void uw_Sqlcache_delete(uw_Sqlcache_Cache cache, uw_Sqlcache_Entry entry) {
ziv@2291	4588 if (entry) {
ziv@2291	4589 HASH_DEL(cache->table, entry);
ziv@2291	4590 uw_Sqlcache_freeEntry(entry);
ziv@2291	4591 }
ziv@2279	4592 }
ziv@2279	4593
ziv@2288	4594 static uw_Sqlcache_Entry uw_Sqlcache_find(uw_Sqlcache_Cache cache, char *key, size_t len, int bump) {
ziv@2279	4595 uw_Sqlcache_Entry *entry = NULL;
ziv@2279	4596 HASH_FIND(hh, cache->table, key, len, entry);
ziv@2279	4597 if (entry && bump) {
ziv@2279	4598 // Bump for LRU purposes.
ziv@2279	4599 HASH_DEL(cache->table, entry);
ziv@2279	4600 // Important that we use [entry->key], because [key] might be ephemeral.
ziv@2279	4601 HASH_ADD_KEYPTR(hh, cache->table, entry->key, len, entry);
ziv@2279	4602 }
ziv@2279	4603 return entry;
ziv@2279	4604 }
ziv@2279	4605
ziv@2288	4606 static void uw_Sqlcache_add(uw_Sqlcache_Cache cache, uw_Sqlcache_Entry entry, size_t len) {
ziv@2279	4607 HASH_ADD_KEYPTR(hh, cache->table, entry->key, len, entry);
ziv@2279	4608 if (HASH_COUNT(cache->table) > uw_Sqlcache_maxSize) {
ziv@2279	4609 // Deletes the first element of the cache.
ziv@2279	4610 uw_Sqlcache_delete(cache, cache->table);
ziv@2279	4611 }
ziv@2279	4612 }
ziv@2279	4613
ziv@2288	4614 static unsigned long uw_Sqlcache_getTimeNow(uw_Sqlcache_Cache *cache) {
ziv@2279	4615 return ++cache->timeNow;
ziv@2279	4616 }
ziv@2279	4617
ziv@2288	4618 static unsigned long uw_Sqlcache_timeMax(unsigned long x, unsigned long y) {
ziv@2279	4619 return x > y ? x : y;
ziv@2279	4620 }
ziv@2279	4621
ziv@2288	4622 static char uw_Sqlcache_keySep = '_';
ziv@2288	4623
ziv@2288	4624 static char uw_Sqlcache_allocKeyBuffer(char *keys, size_t numKeys) {
ziv@2279	4625 size_t len = 0;
ziv@2279	4626 while (numKeys-- > 0) {
ziv@2279	4627 char* k = keys[numKeys];
ziv@2279	4628 if (!k) {
ziv@2279	4629 // Can only happen when flushihg, in which case we don't need anything past the null key.
ziv@2279	4630 break;
ziv@2234	4631 }
ziv@2279	4632 // Leave room for separator.
ziv@2279	4633 len += 1 + strlen(k);
ziv@2234	4634 }
ziv@2279	4635 char *buf = malloc(len+1);
ziv@2279	4636 // If nothing is copied into the buffer, it should look like it has length 0.
ziv@2279	4637 buf[0] = 0;
ziv@2279	4638 return buf;
ziv@2279	4639 }
ziv@2279	4640
ziv@2288	4641 static char uw_Sqlcache_keyCopy(char buf, char *key) {
ziv@2279	4642 *buf++ = uw_Sqlcache_keySep;
ziv@2279	4643 return stpcpy(buf, key);
ziv@2279	4644 }
ziv@2279	4645
ziv@2279	4646 // The NUL-terminated prefix of [key] below always looks something like "_k1_k2_k3..._kn".
ziv@2285	4647
ziv@2285	4648 uw_Sqlcache_Value uw_Sqlcache_check(uw_context ctx, uw_Sqlcache_Cache cache, char **keys) {
ziv@2288	4649 int doBump = random() % 1024 == 0;
ziv@2288	4650 if (doBump) {
ziv@2288	4651 pthread_rwlock_wrlock(&cache->lockIn);
ziv@2288	4652 } else {
ziv@2288	4653 pthread_rwlock_rdlock(&cache->lockIn);
ziv@2288	4654 }
ziv@2281	4655 size_t numKeys = cache->numKeys;
ziv@2279	4656 char *key = uw_Sqlcache_allocKeyBuffer(keys, numKeys);
ziv@2279	4657 char *buf = key;
ziv@2279	4658 time_t timeInvalid = cache->timeInvalid;
ziv@2279	4659 uw_Sqlcache_Entry *entry;
ziv@2286	4660 if (numKeys == 0) {
ziv@2286	4661 entry = cache->table;
ziv@2279	4662 if (!entry) {
ziv@2279	4663 free(key);
ziv@2288	4664 pthread_rwlock_unlock(&cache->lockIn);
ziv@2279	4665 return NULL;
ziv@2279	4666 }
ziv@2286	4667 } else {
ziv@2286	4668 while (numKeys-- > 0) {
ziv@2286	4669 buf = uw_Sqlcache_keyCopy(buf, keys[numKeys]);
ziv@2286	4670 size_t len = buf - key;
ziv@2288	4671 entry = uw_Sqlcache_find(cache, key, len, doBump);
ziv@2286	4672 if (!entry) {
ziv@2286	4673 free(key);
ziv@2288	4674 pthread_rwlock_unlock(&cache->lockIn);
ziv@2286	4675 return NULL;
ziv@2286	4676 }
ziv@2286	4677 timeInvalid = uw_Sqlcache_timeMax(timeInvalid, entry->timeInvalid);
ziv@2286	4678 }
ziv@2286	4679 free(key);
ziv@2234	4680 }
ziv@2279	4681 uw_Sqlcache_Value *value = entry->value;
ziv@2288	4682 pthread_rwlock_unlock(&cache->lockIn);
ziv@2288	4683 // ASK: though the argument isn't trivial, this is safe, right?
ziv@2288	4684 // Returning outside the lock is safe because updates happen at commit time.
ziv@2288	4685 // Those are the only times the returned value or its strings can get freed.
ziv@2288	4686 // Handler output is a new string, so it's safe to free this at commit time.
ziv@2279	4687 return value && value->timeValid > timeInvalid ? value : NULL;
ziv@2279	4688 }
ziv@2279	4689
ziv@2288	4690 static void uw_Sqlcache_storeCommitOne(uw_Sqlcache_Cache cache, char keys, uw_Sqlcache_Value value) {
ziv@2288	4691 pthread_rwlock_wrlock(&cache->lockIn);
ziv@2281	4692 size_t numKeys = cache->numKeys;
ziv@2279	4693 time_t timeNow = uw_Sqlcache_getTimeNow(cache);
ziv@2279	4694 uw_Sqlcache_Entry *entry;
ziv@2286	4695 if (numKeys == 0) {
ziv@2286	4696 entry = cache->table;
ziv@2279	4697 if (!entry) {
ziv@2279	4698 entry = malloc(sizeof(uw_Sqlcache_Entry));
ziv@2288	4699 entry->key = NULL;
ziv@2279	4700 entry->value = NULL;
ziv@2285	4701 entry->timeInvalid = 0;
ziv@2286	4702 cache->table = entry;
ziv@2234	4703 }
ziv@2286	4704 } else {
ziv@2288	4705 char *key = uw_Sqlcache_allocKeyBuffer(keys, numKeys);
ziv@2288	4706 char *buf = key;
ziv@2286	4707 while (numKeys-- > 0) {
ziv@2286	4708 buf = uw_Sqlcache_keyCopy(buf, keys[numKeys]);
ziv@2286	4709 size_t len = buf - key;
ziv@2286	4710 entry = uw_Sqlcache_find(cache, key, len, 1);
ziv@2286	4711 if (!entry) {
ziv@2286	4712 entry = malloc(sizeof(uw_Sqlcache_Entry));
ziv@2286	4713 entry->key = strdup(key);
ziv@2286	4714 entry->value = NULL;
ziv@2286	4715 entry->timeInvalid = 0;
ziv@2286	4716 uw_Sqlcache_add(cache, entry, len);
ziv@2286	4717 }
ziv@2286	4718 }
ziv@2286	4719 free(key);
ziv@2234	4720 }
ziv@2279	4721 uw_Sqlcache_freeValue(entry->value);
ziv@2279	4722 entry->value = value;
ziv@2279	4723 entry->value->timeValid = timeNow;
ziv@2288	4724 pthread_rwlock_unlock(&cache->lockIn);
ziv@2288	4725 }
ziv@2288	4726
ziv@2288	4727 static void uw_Sqlcache_flushCommitOne(uw_Sqlcache_Cache cache, char *keys) {
ziv@2288	4728 }
ziv@2288	4729
ziv@2288	4730 static void uw_Sqlcache_commit(void *data) {
ziv@2288	4731 uw_context ctx = (uw_context)data;
ziv@2288	4732 uw_Sqlcache_Update *update = ctx->cacheUpdate;
ziv@2288	4733 while (update) {
ziv@2288	4734 uw_Sqlcache_Cache *cache = update->cache;
ziv@2288	4735 char **keys = update->keys;
ziv@2288	4736 if (update->value) {
ziv@2288	4737 uw_Sqlcache_storeCommitOne(cache, keys, update->value);
ziv@2288	4738 } else {
ziv@2288	4739 uw_Sqlcache_flushCommitOne(cache, keys);
ziv@2288	4740 }
ziv@2288	4741 update = update->next;
ziv@2288	4742 }
ziv@2288	4743 }
ziv@2288	4744
ziv@2288	4745 static void uw_Sqlcache_free(void *data, int dontCare) {
ziv@2285	4746 uw_context ctx = (uw_context)data;
ziv@2285	4747 uw_Sqlcache_Update *update = ctx->cacheUpdate;
ziv@2285	4748 while (update) {
ziv@2285	4749 char** keys = update->keys;
ziv@2285	4750 size_t numKeys = update->cache->numKeys;
ziv@2282	4751 while (numKeys-- > 0) {
ziv@2282	4752 free(keys[numKeys]);
ziv@2282	4753 }
ziv@2282	4754 free(keys);
ziv@2285	4755 // Don't free [update->value]: it's in the cache now!
ziv@2285	4756 uw_Sqlcache_Update *nextUpdate = update->next;
ziv@2285	4757 free(update);
ziv@2285	4758 update = nextUpdate;
ziv@2282	4759 }
ziv@2285	4760 ctx->cacheUpdate = NULL;
ziv@2285	4761 ctx->cacheUpdateTail = NULL;
ziv@2288	4762 uw_Sqlcache_Unlock *unlock = ctx->cacheUnlock;
ziv@2288	4763 while (unlock) {
ziv@2288	4764 pthread_rwlock_unlock(unlock->lock);
ziv@2288	4765 uw_Sqlcache_Unlock *nextUnlock = unlock->next;
ziv@2288	4766 free(unlock);
ziv@2288	4767 unlock = nextUnlock;
ziv@2282	4768 }
ziv@2288	4769 ctx->cacheUnlock = NULL;
ziv@2288	4770 }
ziv@2288	4771
ziv@2288	4772 static void uw_Sqlcache_pushUnlock(uw_context ctx, pthread_rwlock_t *lock) {
ziv@2288	4773 if (!ctx->cacheUnlock) {
ziv@2288	4774 // Just need one registered commit for both updating and unlocking.
ziv@2288	4775 uw_register_transactional(ctx, ctx, uw_Sqlcache_commit, NULL, uw_Sqlcache_free);
ziv@2288	4776 }
ziv@2288	4777 uw_Sqlcache_Unlock *unlock = malloc(sizeof(uw_Sqlcache_Unlock));
ziv@2288	4778 unlock->lock = lock;
ziv@2288	4779 unlock->next = ctx->cacheUnlock;
ziv@2288	4780 ctx->cacheUnlock = unlock;
ziv@2288	4781 }
ziv@2288	4782
ziv@2288	4783 void uw_Sqlcache_rlock(uw_context ctx, uw_Sqlcache_Cache *cache) {
ziv@2288	4784 pthread_rwlock_rdlock(&cache->lockOut);
ziv@2288	4785 uw_Sqlcache_pushUnlock(ctx, &cache->lockOut);
ziv@2288	4786 }
ziv@2288	4787
ziv@2288	4788 void uw_Sqlcache_wlock(uw_context ctx, uw_Sqlcache_Cache *cache) {
ziv@2288	4789 pthread_rwlock_wrlock(&cache->lockOut);
ziv@2288	4790 uw_Sqlcache_pushUnlock(ctx, &cache->lockOut);
ziv@2288	4791 }
ziv@2288	4792
ziv@2288	4793 static char uw_Sqlcache_copyKeys(char keys, size_t numKeys) {
ziv@2284	4794 char *copy = malloc(sizeof(char ) * numKeys);
ziv@2284	4795 while (numKeys-- > 0) {
ziv@2285	4796 char *k = keys[numKeys];
ziv@2284	4797 copy[numKeys] = k ? strdup(k) : NULL;
ziv@2284	4798 }
ziv@2284	4799 return copy;
ziv@2282	4800 }
ziv@2282	4801
ziv@2285	4802 void uw_Sqlcache_store(uw_context ctx, uw_Sqlcache_Cache cache, char keys, uw_Sqlcache_Value value) {
ziv@2285	4803 uw_Sqlcache_Update *update = malloc(sizeof(uw_Sqlcache_Update));
ziv@2285	4804 update->cache = cache;
ziv@2285	4805 update->keys = uw_Sqlcache_copyKeys(keys, cache->numKeys);
ziv@2285	4806 update->value = value;
ziv@2285	4807 update->next = NULL;
ziv@2285	4808 if (ctx->cacheUpdateTail) {
ziv@2285	4809 ctx->cacheUpdateTail->next = update;
ziv@2285	4810 } else {
ziv@2285	4811 ctx->cacheUpdate = update;
ziv@2285	4812 }
ziv@2285	4813 ctx->cacheUpdateTail = update;
ziv@2285	4814 }
ziv@2285	4815
ziv@2282	4816 void uw_Sqlcache_flush(uw_context ctx, uw_Sqlcache_Cache cache, char *keys) {
ziv@2291	4817 // A flush has to happen immediately so that subsequent stores in the same transaction fail.
ziv@2291	4818 // This is safe to do because we will always call [uw_Sqlcache_wlock] earlier.
ziv@2291	4819 // If the transaction fails, the only harm done is a few extra cache misses.
ziv@2291	4820 pthread_rwlock_wrlock(&cache->lockIn);
ziv@2291	4821 size_t numKeys = cache->numKeys;
ziv@2291	4822 if (numKeys == 0) {
ziv@2291	4823 uw_Sqlcache_Entry *entry = cache->table;
ziv@2291	4824 if (entry) {
ziv@2291	4825 uw_Sqlcache_freeValue(entry->value);
ziv@2291	4826 entry->value = NULL;
ziv@2291	4827 }
ziv@2291	4828 } else {
ziv@2291	4829 char *key = uw_Sqlcache_allocKeyBuffer(keys, numKeys);
ziv@2291	4830 char *buf = key;
ziv@2291	4831 time_t timeNow = uw_Sqlcache_getTimeNow(cache);
ziv@2291	4832 while (numKeys-- > 0) {
ziv@2291	4833 char *k = keys[numKeys];
ziv@2291	4834 if (!k) {
ziv@2291	4835 size_t len = buf - key;
ziv@2291	4836 if (len == 0) {
ziv@2291	4837 // The first key was null.
ziv@2291	4838 cache->timeInvalid = timeNow;
ziv@2291	4839 } else {
ziv@2291	4840 uw_Sqlcache_Entry *entry = uw_Sqlcache_find(cache, key, len, 0);
ziv@2291	4841 if (entry) {
ziv@2291	4842 entry->timeInvalid = timeNow;
ziv@2291	4843 }
ziv@2291	4844 }
ziv@2291	4845 free(key);
ziv@2291	4846 pthread_rwlock_unlock(&cache->lockIn);
ziv@2291	4847 return;
ziv@2291	4848 }
ziv@2291	4849 buf = uw_Sqlcache_keyCopy(buf, k);
ziv@2291	4850 }
ziv@2291	4851 // All the keys were non-null, so we delete the pointed-to entry.
ziv@2291	4852 size_t len = buf - key;
ziv@2291	4853 uw_Sqlcache_Entry *entry = uw_Sqlcache_find(cache, key, len, 0);
ziv@2291	4854 free(key);
ziv@2291	4855 uw_Sqlcache_delete(cache, entry);
ziv@2291	4856 }
ziv@2291	4857 pthread_rwlock_unlock(&cache->lockIn);
ziv@2291	4858 }

Mercurial > urweb

annotate src/c/urweb.c @ 2291:50ad02829abd