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

annotate src/c/urweb.c @ 2297:6d56080f495c

Fix a read-after-free bug using a timestamp check

author	Adam Chlipala <adam@chlipala.net>
date	Thu, 19 Nov 2015 13:18:58 -0500
parents	5104e480b3e3
children	6e580e319077

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
adam@2296	605 ctx->cacheUnlock = NULL;
adam@2296	606
adamc@117	607 return ctx;
adamc@106	608 }
adamc@106	609
adamc@1113	610 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	611
adamc@1121	612 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	613 return ctx->app;
adamc@1121	614 }
adamc@1121	615
adamc@1113	616 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	617 ctx->app = app;
adamc@1094	618
adamc@1105	619 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	620 if (app->inputs_len > uw_inputs_max)
adamc@1113	621 return 1;
adamc@1113	622
adamc@1094	623 ctx->sz_inputs = app->inputs_len;
adamc@1094	624 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	625 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	626 }
adamc@1134	627
adamc@1134	628 return 0;
adamc@1094	629 }
adamc@1094	630
adamc@1121	631 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	632 uw_copy_client_data(ctx->client_data, data);
adamc@1121	633 }
adamc@1121	634
adamc@311	635 void uw_set_db(uw_context ctx, void *db) {
adamc@272	636 ctx->db = db;
adamc@272	637 }
adamc@272	638
adamc@311	639 void *uw_get_db(uw_context ctx) {
adamc@272	640 return ctx->db;
adamc@272	641 }
adamc@272	642
grrwlf@1997	643
grrwlf@1997	644 uw_loggers* uw_get_loggers(struct uw_context *ctx) {
grrwlf@1997	645 return ctx->loggers;
grrwlf@1997	646 }
grrwlf@1997	647
adamc@311	648 void uw_free(uw_context ctx) {
adamc@671	649 size_t i;
adamc@671	650
adam@1369	651 uw_buffer_free(&ctx->outHeaders);
adam@1369	652 uw_buffer_free(&ctx->script);
adam@1369	653 uw_buffer_free(&ctx->page);
adam@1369	654 uw_buffer_free(&ctx->heap);
adamc@144	655 free(ctx->inputs);
adamc@756	656 free(ctx->subinputs);
adamc@425	657 free(ctx->cleanup);
adamc@771	658 free(ctx->transactionals);
adamc@1121	659 uw_free_client_data(ctx->client_data);
adamc@671	660
adamc@682	661 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	662 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	663 free(ctx->deltas);
adamc@671	664
adamc@1061	665 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	666 if (ctx->globals[i].free)
adamc@1089	667 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	668 free(ctx->globals);
adamc@1061	669
adam@1949	670 free(ctx->output_buffer);
adam@1949	671
adamc@136	672 free(ctx);
adamc@136	673 }
adamc@136	674
adamc@562	675 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	676 uw_buffer_reset(&ctx->outHeaders);
adam@1369	677 uw_buffer_reset(&ctx->script);
adamc@667	678 ctx->script.start[0] = 0;
adam@1369	679 uw_buffer_reset(&ctx->page);
adam@1451	680 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	681 uw_buffer_reset(&ctx->heap);
adamc@323	682 ctx->regions = NULL;
adamc@425	683 ctx->cleanup_front = ctx->cleanup;
adamc@682	684 ctx->used_deltas = 0;
adamc@682	685 ctx->client = NULL;
adamc@759	686 ctx->cur_container = NULL;
adamc@771	687 ctx->used_transactionals = 0;
adamc@1117	688 ctx->script_header = "";
adam@1370	689 ctx->queryString = NULL;
adam@1556	690 ctx->nextId = 0;
adam@1782	691 ctx->amInitializing = 0;
adam@1877	692 ctx->usedSig = 0;
adam@1877	693 ctx->needsResig = 0;
adam@2073	694 ctx->remoteSock = -1;
adamc@167	695 }
adamc@167	696
adamc@562	697 void uw_reset_keep_request(uw_context ctx) {
adamc@562	698 uw_reset_keep_error_message(ctx);
adamc@562	699 ctx->error_message[0] = 0;
adamc@167	700 }
adamc@167	701
adamc@311	702 void uw_reset(uw_context ctx) {
adamc@311	703 uw_reset_keep_request(ctx);
adamc@1105	704 if (ctx->app)
adamc@1105	705 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	706 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461	707 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adam@1943	708 ctx->transaction_started = 0;
adamc@144	709 }
adamc@144	710
adamc@311	711 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	712 int r = setjmp(ctx->jmp_buf);
adamc@272	713
adamc@1105	714 if (r == 0 && ctx->app)
adamc@1094	715 ctx->app->db_init(ctx);
adamc@272	716
adamc@272	717 return r;
adamc@272	718 }
adamc@272	719
adamc@1118	720 void uw_close(uw_context ctx) {
adamc@1118	721 ctx->app->db_close(ctx);
adamc@1118	722 }
adamc@1118	723
adam@1446	724 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	725 return ctx->get_header(ctx->get_header_data, h);
adam@1446	726 }
adam@1446	727
adamc@854	728 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	729 ctx->get_header = get_header;
adamc@854	730 ctx->get_header_data = get_header_data;
adamc@742	731 }
adamc@742	732
adam@1799	733 void uw_set_env(uw_context ctx, char (get_env)(void , const char ), void *get_env_data) {
adam@1799	734 ctx->get_env = get_env;
adam@1799	735 ctx->get_env_data = get_env_data;
adam@1799	736 }
adam@1799	737
adamc@801	738 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	739 va_list ap;
adamc@801	740 va_start(ap, fmt);
adamc@801	741
adamc@801	742 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	743 }
adamc@801	744
adamc@1131	745 int uw_has_error(uw_context ctx) {
adamc@1131	746 return ctx->error_message[0] != 0;
adamc@1131	747 }
adamc@1131	748
adamc@311	749 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	750 cleanup *cl;
adamc@425	751
adamc@167	752 va_list ap;
adamc@167	753 va_start(ap, fmt);
adamc@167	754
adamc@167	755 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	756
adamc@425	757 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	758 cl->func(cl->arg);
adamc@425	759
adamc@425	760 ctx->cleanup_front = ctx->cleanup;
adamc@425	761
adamc@190	762 longjmp(ctx->jmp_buf, fk);
adamc@167	763 }
adamc@167	764
adamc@1113	765 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	766
adamc@425	767 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	768 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	769 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	770 if (len == 0)
adamc@425	771 newLen = 1;
adamc@425	772 else
adamc@428	773 newLen = len * 2;
adamc@1113	774
adamc@1134	775 if (newLen > uw_cleanup_max) {
adamc@1113	776 if (len+1 <= uw_cleanup_max)
adamc@1113	777 newLen = uw_cleanup_max;
adamc@1113	778 else
adamc@1113	779 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	780 }
adamc@1113	781
adamc@470	782 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	783 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	784 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	785 }
adamc@425	786
adamc@425	787 ctx->cleanup_front->func = func;
adamc@425	788 ctx->cleanup_front->arg = arg;
adamc@425	789 ++ctx->cleanup_front;
adamc@425	790 }
adamc@425	791
adam@1444	792 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	793
adamc@682	794 void uw_login(uw_context ctx) {
adam@1942	795 char id_s, pass_s;
adam@1942	796
adam@1942	797 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adam@1942	798 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adam@1942	799 unsigned id = atoi(id_s);
adam@1942	800 int pass = atoi(pass_s);
adam@1942	801 client *c = find_client(id);
adam@1942	802
adam@1942	803 if (c == NULL)
adam@1942	804 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	805 else {
adamc@685	806 use_client(c);
adamc@682	807 ctx->client = c;
adam@1942	808
adam@1942	809 if (c->mode != USED)
adam@1942	810 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adam@1942	811 if (c->pass != pass)
adam@1942	812 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@864	813 }
adam@1942	814 } else if (ctx->needs_push) {
adam@1942	815 client *c = new_client();
adam@1942	816
adam@1942	817 if (c == NULL)
adam@1942	818 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adam@1942	819
adam@1942	820 use_client(c);
adam@1942	821 uw_copy_client_data(c->data, ctx->client_data);
adam@1942	822 ctx->client = c;
adamc@682	823 }
adamc@682	824 }
adamc@682	825
adamc@671	826 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	827 int r = setjmp(ctx->jmp_buf);
adamc@671	828
adam@1931	829 if (r == 0)
adam@1931	830 ctx->app->handle(ctx, path);
adam@1931	831
adam@1931	832 return r;
adam@1931	833 }
adam@1931	834
adam@2176	835 static void uw_try_reconnecting(uw_context ctx) {
adam@2176	836 // Hm, error starting transaction.
adam@2176	837 // Maybe the database server died but has since come back up.
adam@2176	838 // Let's try starting from scratch.
adam@2176	839 if (ctx->db) {
adam@2176	840 ctx->app->db_close(ctx);
adam@2176	841 ctx->db = NULL;
adam@2176	842 }
adam@2176	843 ctx->app->db_init(ctx);
adam@2176	844 }
adam@2176	845
adam@2177	846 void uw_try_reconnecting_and_restarting(uw_context ctx) {
adam@2177	847 uw_try_reconnecting(ctx);
adam@2178	848 uw_error(ctx, BOUNDED_RETRY, "Restarting transaction after fixing database connection");
adam@2176	849 }
adam@2176	850
adam@1931	851 void uw_ensure_transaction(uw_context ctx) {
adam@2056	852 if (!ctx->transaction_started && !ctx->at_most_one_query) {
adam@2176	853 if (!ctx->db \|\| ctx->app->db_begin(ctx, ctx->could_write_db)) {
adam@2176	854 uw_try_reconnecting(ctx);
adam@2176	855
adam@2176	856 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adam@2176	857 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adam@2176	858 }
adam@2176	859
adam@1931	860 ctx->transaction_started = 1;
adam@2178	861 } else if (ctx->at_most_one_query && !ctx->db)
adam@2178	862 uw_try_reconnecting(ctx);
adamc@671	863 }
adamc@671	864
adamc@772	865 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	866 if (ctx->client == NULL)
adamc@682	867 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	868
adamc@682	869 return ctx->client->id;
adamc@682	870 }
adamc@682	871
adamc@425	872 void uw_pop_cleanup(uw_context ctx) {
adamc@425	873 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	874 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	875
adamc@425	876 --ctx->cleanup_front;
adamc@425	877 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	878 }
adamc@425	879
adamc@311	880 char *uw_error_message(uw_context ctx) {
adamc@167	881 return ctx->error_message;
adamc@167	882 }
adamc@167	883
adamc@1115	884 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	885 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	886 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	887 }
adamc@1115	888
adamc@759	889 static input *INP(uw_context ctx) {
adamc@759	890 if (ctx->cur_container == NULL)
adamc@759	891 return ctx->inputs;
adamc@759	892 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	893 return ctx->cur_container->data.subform.fields;
adamc@759	894 else if (ctx->cur_container->kind == ENTRY)
adamc@759	895 return ctx->cur_container->data.entry.fields;
adamc@759	896 else
adamc@760	897 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	898 }
adamc@759	899
adamc@760	900 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	901 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	902 *ptr += new_start - old_start;
adamc@760	903 }
adamc@760	904
adamc@760	905 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	906 switch (x->kind) {
adamc@759	907 case SUBFORM:
adamc@760	908 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	909 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	910 break;
adamc@759	911 case SUBFORMS:
adamc@760	912 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	913 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	914 break;
adamc@759	915 case ENTRY:
adamc@760	916 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	917 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	918 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	919 break;
adamc@1134	920 default:
adamc@1134	921 break;
phurst@1981	922 }
adamc@759	923 }
adamc@759	924
adamc@1113	925 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	926
adamc@759	927 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	928 size_t i;
adamc@759	929 input *r;
adamc@759	930
adamc@759	931 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	932 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	933 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	934
adamc@759	935 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	936
adamc@760	937 if (ctx->subinputs != new_subinputs) {
adamc@760	938 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	939 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	940 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	941 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	942
adamc@760	943 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	944
adamc@760	945 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	946 ctx->subinputs = new_subinputs;
adamc@760	947 }
adamc@759	948 }
adamc@759	949
adamc@759	950 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	951
adamc@759	952 for (i = 0; i < len; ++i)
adam@1474	953 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	954
adamc@759	955 return r;
adamc@759	956 }
adamc@756	957
adamc@801	958 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	959 //printf("Input name %s\n", name);
adamc@1038	960
adamc@756	961 if (!strcasecmp(name, ".b")) {
adamc@1094	962 int n = ctx->app->input_num(value);
adamc@756	963 input *inps;
adamc@756	964
adamc@801	965 if (n < 0) {
adam@1444	966 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	967 return -1;
adamc@801	968 }
adamc@801	969
adamc@1094	970 if (n >= ctx->app->inputs_len) {
adam@1444	971 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	972 return -1;
adamc@801	973 }
adamc@756	974
adamc@1094	975 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	976
adamc@759	977 INP(ctx)[n].kind = SUBFORM;
adamc@759	978 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	979 INP(ctx)[n].data.subform.fields = inps;
adamc@759	980 ctx->cur_container = &INP(ctx)[n];
adamc@756	981 } else if (!strcasecmp(name, ".e")) {
adamc@756	982 input *tmp;
adamc@756	983
adamc@801	984 if (ctx->cur_container == NULL) {
adamc@801	985 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	986 return -1;
adamc@801	987 }
adamc@756	988
adamc@759	989 tmp = ctx->cur_container;
adamc@759	990 switch (tmp->kind) {
adamc@759	991 case SUBFORM:
adamc@759	992 ctx->cur_container = tmp->data.subform.parent;
adamc@759	993 tmp->data.subform.parent = NULL;
adamc@759	994 break;
adamc@759	995 case SUBFORMS:
adamc@759	996 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	997 tmp->data.subforms.parent = NULL;
adamc@759	998 break;
adamc@759	999 case ENTRY:
adamc@759	1000 ctx->cur_container = tmp->data.entry.parent;
adamc@759	1001 break;
adamc@759	1002 default:
adamc@801	1003 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	1004 return -1;
adamc@759	1005 }
adamc@759	1006 } else if (!strcasecmp(name, ".s")) {
adamc@1094	1007 int n = ctx->app->input_num(value);
adamc@759	1008
adamc@801	1009 if (n < 0) {
adam@1444	1010 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	1011 return -1;
adamc@801	1012 }
adamc@801	1013
adamc@1094	1014 if (n >= ctx->app->inputs_len) {
adam@1444	1015 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	1016 return -1;
adamc@801	1017 }
adamc@759	1018
adamc@759	1019 INP(ctx)[n].kind = SUBFORMS;
adamc@759	1020 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1021 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	1022 ctx->cur_container = &INP(ctx)[n];
adamc@759	1023 } else if (!strcasecmp(name, ".i")) {
adamc@759	1024 input *inps;
adamc@759	1025
adamc@801	1026 if (!ctx->cur_container) {
adamc@801	1027 uw_set_error(ctx, "New entry without container");
adamc@801	1028 return -1;
adamc@801	1029 }
adamc@801	1030
adamc@801	1031 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	1032 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	1033 return -1;
adamc@801	1034 }
adamc@759	1035
adamc@1094	1036 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	1037
adamc@759	1038 inps->kind = ENTRY;
adamc@759	1039 inps->data.entry.parent = ctx->cur_container;
adamc@759	1040 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	1041 ctx->cur_container->data.subforms.entries = inps;
adamc@759	1042
adamc@759	1043 inps->data.entry.fields = inps+1;
adamc@759	1044 ctx->cur_container = inps;
adamc@756	1045 } else {
adamc@1094	1046 int n = ctx->app->input_num(name);
adamc@756	1047
adam@1384	1048 if (n < 0)
adam@1384	1049 return 0;
adamc@801	1050
adamc@1094	1051 if (n >= ctx->app->inputs_len) {
adam@1444	1052 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	1053 return -1;
adamc@801	1054 }
adamc@756	1055
adamc@756	1056 INP(ctx)[n].kind = NORMAL;
adamc@756	1057 INP(ctx)[n].data.normal = value;
adamc@756	1058 }
adamc@801	1059
adamc@801	1060 return 0;
adamc@144	1061 }
adamc@144	1062
adamc@311	1063 char *uw_get_input(uw_context ctx, int n) {
adamc@169	1064 if (n < 0)
adamc@311	1065 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1066 if (n >= ctx->app->inputs_len)
adamc@311	1067 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1068
adamc@756	1069 switch (INP(ctx)[n].kind) {
adamc@737	1070 case UNSET:
adamc@737	1071 return NULL;
adamc@739	1072 case FIL:
adamc@739	1073 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1074 case SUBFORM:
adamc@756	1075 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1076 case SUBFORMS:
adamc@759	1077 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1078 case ENTRY:
adamc@759	1079 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1080 case NORMAL:
adamc@756	1081 return INP(ctx)[n].data.normal;
adamc@737	1082 default:
adamc@737	1083 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1084 }
adamc@138	1085 }
adamc@138	1086
adamc@311	1087 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	1088 if (n < 0)
adamc@311	1089 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1090 if (n >= ctx->app->inputs_len)
adamc@311	1091 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1092
adamc@756	1093 switch (INP(ctx)[n].kind) {
adamc@737	1094 case UNSET:
adamc@737	1095 return "";
adamc@739	1096 case FIL:
adamc@739	1097 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1098 case SUBFORM:
adamc@756	1099 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1100 case SUBFORMS:
adamc@759	1101 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1102 case ENTRY:
adamc@759	1103 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1104 case NORMAL:
adamc@756	1105 return INP(ctx)[n].data.normal;
adamc@737	1106 default:
adamc@737	1107 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1108 }
adamc@737	1109 }
adamc@737	1110
adamc@801	1111 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1112 int n = ctx->app->input_num(name);
adamc@737	1113
adamc@801	1114 if (n < 0) {
adam@2054	1115 uw_set_error(ctx, "Bad file input name");
adamc@801	1116 return -1;
adamc@801	1117 }
adamc@801	1118
adamc@1094	1119 if (n >= ctx->app->inputs_len) {
adam@2054	1120 uw_set_error(ctx, "For file input name, index %d is out of range", n);
adamc@801	1121 return -1;
adamc@801	1122 }
adamc@737	1123
adamc@739	1124 ctx->inputs[n].kind = FIL;
adamc@739	1125 ctx->inputs[n].data.file = f;
adamc@801	1126
adamc@801	1127 return 0;
adamc@737	1128 }
adamc@737	1129
adamc@739	1130 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1131
adamc@739	1132 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1133 if (n < 0)
adamc@737	1134 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1135 if (n >= ctx->app->inputs_len)
adamc@737	1136 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1137
adamc@756	1138 switch (INP(ctx)[n].kind) {
adamc@737	1139 case UNSET:
adamc@737	1140 {
adamc@739	1141 char *data = uw_malloc(ctx, 0);
adamc@740	1142 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1143 return f;
adamc@737	1144 }
adamc@739	1145 case FIL:
adamc@756	1146 return INP(ctx)[n].data.file;
adamc@737	1147 case NORMAL:
adamc@737	1148 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1149 case SUBFORM:
adamc@756	1150 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1151 case SUBFORMS:
adamc@759	1152 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1153 case ENTRY:
adamc@759	1154 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1155 default:
adamc@737	1156 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1157 }
adamc@190	1158 }
adamc@190	1159
adamc@756	1160 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1161 if (n < 0)
adamc@756	1162 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1163 if (n >= ctx->app->inputs_len)
adamc@756	1164 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1165
adamc@756	1166 switch (INP(ctx)[n].kind) {
adamc@756	1167 case UNSET:
adamc@756	1168 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1169 case FIL:
adamc@756	1170 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1171 case NORMAL:
adamc@756	1172 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1173 case SUBFORMS:
adamc@759	1174 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1175 case ENTRY:
adamc@759	1176 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1177 case SUBFORM:
adamc@759	1178 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1179 ctx->cur_container = &INP(ctx)[n];
adamc@756	1180 return;
adamc@756	1181 default:
adamc@756	1182 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1183 }
adamc@756	1184 }
adamc@756	1185
adamc@756	1186 void uw_leave_subform(uw_context ctx) {
adamc@756	1187 input *tmp;
adamc@756	1188
adamc@759	1189 if (ctx->cur_container == NULL)
adamc@756	1190 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1191
adamc@759	1192 tmp = ctx->cur_container;
adamc@759	1193 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1194 tmp->data.subform.parent = NULL;
adamc@759	1195 }
adamc@759	1196
adamc@759	1197 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1198 input *inps;
adamc@759	1199
adamc@759	1200 if (n < 0)
adamc@759	1201 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1202 if (n >= ctx->app->inputs_len)
adamc@759	1203 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1204
adamc@759	1205 switch (INP(ctx)[n].kind) {
adamc@759	1206 case UNSET:
adamc@759	1207 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1208 case FIL:
adamc@759	1209 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1210 case NORMAL:
adamc@759	1211 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1212 case SUBFORM:
adamc@759	1213 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1214 case ENTRY:
adamc@759	1215 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1216 case SUBFORMS:
adamc@759	1217 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1218 if (inps) {
adamc@759	1219 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1220 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1221 return 1;
adamc@759	1222 } else
adamc@759	1223 return 0;
adamc@759	1224 default:
adamc@759	1225 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1226 }
adamc@759	1227 }
adamc@759	1228
adamc@759	1229 int uw_next_entry(uw_context ctx) {
adamc@759	1230 if (ctx->cur_container == NULL)
adamc@759	1231 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1232
adamc@759	1233 switch (ctx->cur_container->kind) {
adamc@759	1234 case UNSET:
adamc@759	1235 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1236 case FIL:
adamc@759	1237 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1238 case NORMAL:
adamc@759	1239 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1240 case SUBFORM:
adamc@759	1241 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1242 case SUBFORMS:
adamc@759	1243 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1244 case ENTRY:
adamc@759	1245 if (ctx->cur_container->data.entry.next) {
adamc@759	1246 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1247 return 1;
adamc@759	1248 } else {
adamc@759	1249 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1250 return 0;
adamc@759	1251 }
adamc@759	1252 default:
adamc@759	1253 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1254 }
adamc@756	1255 }
adamc@756	1256
adamc@643	1257 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1258 ctx->script_header = s;
adamc@643	1259 }
adamc@643	1260
adamc@1094	1261 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1262 return ctx->app->url_prefix;
adamc@667	1263 }
adamc@667	1264
adamc@693	1265 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1266 ctx->needs_push = n;
adamc@693	1267 }
adamc@693	1268
adamc@736	1269 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1270 ctx->needs_sig = n;
adamc@736	1271 }
adamc@736	1272
adam@1936	1273 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936	1274 ctx->could_write_db = n;
adam@1936	1275 }
adam@1936	1276
adam@2056	1277 void uw_set_at_most_one_query(uw_context ctx, int n) {
adam@2056	1278 ctx->at_most_one_query = n;
adam@2056	1279 }
adam@2056	1280
adamc@667	1281
adam@1369	1282 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1283 if (b->back - b->front < extra) {
adamc@666	1284 size_t desired = b->front - b->start + extra, next;
adamc@136	1285 char *new_heap;
adamc@136	1286
adamc@666	1287 next = b->back - b->start;
adamc@317	1288 if (next == 0)
adamc@317	1289 next = 1;
adamc@317	1290 for (; next < desired; next *= 2);
adamc@136	1291
adamc@1134	1292 if (next > b->max) {
adamc@1113	1293 if (desired <= b->max)
adamc@1113	1294 next = desired;
adamc@1113	1295 else
adamc@1113	1296 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1297 }
adamc@1113	1298
adamc@666	1299 new_heap = realloc(b->start, next);
adamc@666	1300 b->front = new_heap + (b->front - b->start);
adamc@666	1301 b->back = new_heap + next;
adamc@136	1302
adamc@667	1303 if (new_heap != b->start) {
adamc@666	1304 b->start = new_heap;
adam@1389	1305 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1306 }
adamc@136	1307
adamc@666	1308 b->start = new_heap;
adamc@136	1309 }
adamc@136	1310 }
adamc@136	1311
adamc@832	1312 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1313 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1314 }
adamc@666	1315
adamc@832	1316 char *uw_heap_front(uw_context ctx) {
adamc@832	1317 return ctx->heap.front;
adamc@832	1318 }
adamc@832	1319
adamc@832	1320 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1321 ctx->heap.front = fr;
adamc@832	1322 }
adamc@832	1323
adam@1782	1324 void uw_begin_initializing(uw_context ctx) {
adam@1782	1325 ctx->amInitializing = 1;
adam@1782	1326 }
adam@1782	1327
adam@1782	1328 void uw_end_initializing(uw_context ctx) {
adam@1782	1329 ctx->amInitializing = 0;
adam@1782	1330 }
adam@1782	1331
adam@2013	1332 static void align_heap(uw_context ctx) {
adam@2013	1333 size_t posn = ctx->heap.front - ctx->heap.start;
adam@2013	1334
adam@2017	1335 if (posn % sizeof(void *) != 0) {
adam@2017	1336 size_t bump = sizeof(void ) - posn % sizeof(void );
adam@2013	1337 uw_check_heap(ctx, bump);
adam@2013	1338 ctx->heap.front += bump;
adam@2013	1339 }
adam@2013	1340 }
adam@2013	1341
adamc@311	1342 void *uw_malloc(uw_context ctx, size_t len) {
adam@2013	1343 // On some architectures, it's important that all word-sized memory accesses
adam@2013	1344 // be to word-aligned addresses, so we'll do a little bit of extra work here
adam@2013	1345 // in anticipation of a possible word-aligned access to the address we'll
adam@2013	1346 // return.
adam@2013	1347
adamc@136	1348 void *result;
adamc@136	1349
adam@1782	1350 if (ctx->amInitializing) {
adam@2017	1351 int error = posix_memalign(&result, sizeof(void *), len);
adam@2013	1352
adam@2013	1353 if (!error)
adam@1782	1354 return result;
adam@1782	1355 else
adam@2013	1356 uw_error(ctx, FATAL, "uw_malloc: posix_memalign() returns %d", error);
adam@1782	1357 } else {
adam@2013	1358 align_heap(ctx);
adam@2013	1359
adam@1782	1360 uw_check_heap(ctx, len);
adam@1782	1361
adam@1782	1362 result = ctx->heap.front;
adam@1782	1363 ctx->heap.front += len;
adam@1782	1364 return result;
adam@1782	1365 }
adamc@117	1366 }
adamc@117	1367
adamc@323	1368 void uw_begin_region(uw_context ctx) {
adam@2013	1369 align_heap(ctx);
adam@2013	1370
adamc@666	1371 regions r = (regions ) ctx->heap.front;
adamc@323	1372
adamc@323	1373 uw_check_heap(ctx, sizeof(regions));
adamc@323	1374
adamc@666	1375 ctx->heap.front += sizeof(regions);
adamc@323	1376
adamc@323	1377 r->next = ctx->regions;
adamc@323	1378 ctx->regions = r;
adamc@323	1379 }
adamc@323	1380
adamc@323	1381 void uw_end_region(uw_context ctx) {
adamc@323	1382 regions *r = ctx->regions;
adamc@323	1383
adamc@323	1384 if (r == NULL)
adamc@323	1385 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1386
adamc@666	1387 ctx->heap.front = (char *) r;
adamc@323	1388 ctx->regions = r->next;
adamc@323	1389 }
adamc@323	1390
adamc@324	1391 void uw_memstats(uw_context ctx) {
adam@1369	1392 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1393 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1394 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1395 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1396 }
adamc@324	1397
adam@1915	1398 int uw_pagelen(uw_context ctx) {
adam@1915	1399 return ctx->page.front - ctx->page.start;
adam@1915	1400 }
adam@1915	1401
adamc@311	1402 int uw_send(uw_context ctx, int sock) {
adam@1949	1403 size_t target_length = (ctx->outHeaders.front - ctx->outHeaders.start) + 2 + (ctx->page.front - ctx->page.start);
adam@1949	1404
adam@1949	1405 if (ctx->output_buffer_size < target_length) {
adam@1949	1406 do {
adam@1949	1407 ctx->output_buffer_size *= 2;
adam@1949	1408 } while (ctx->output_buffer_size < target_length);
adam@1949	1409 ctx->output_buffer = realloc(ctx->output_buffer, ctx->output_buffer_size);
adam@1949	1410 }
adam@1949	1411
adam@1949	1412 memcpy(ctx->output_buffer, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adam@1949	1413 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start), "\r\n", 2);
adam@1949	1414 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start) + 2, ctx->page.start, ctx->page.front - ctx->page.start);
adam@1949	1415
adam@1949	1416 return uw_really_send(sock, ctx->output_buffer, target_length);
adamc@462	1417 }
adamc@462	1418
adamc@856	1419 int uw_print(uw_context ctx, int fd) {
adamc@856	1420 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1421
adamc@856	1422 if (n < 0)
adamc@856	1423 return n;
adamc@856	1424
adamc@856	1425 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1426
adamc@856	1427 if (n < 0)
adamc@856	1428 return n;
adamc@856	1429
adamc@856	1430 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1431 }
adamc@856	1432
adamc@860	1433 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1434 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1435
adamc@860	1436 if (n < 0)
adamc@860	1437 return n;
adamc@860	1438
adamc@860	1439 n = output(data, "\r\n", 2);
adamc@860	1440
adamc@860	1441 if (n < 0)
adamc@860	1442 return n;
adamc@860	1443
adamc@860	1444 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1445 }
adamc@860	1446
adamc@462	1447 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1448 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1449 }
adamc@462	1450
adamc@462	1451 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1452 int len = strlen(s);
adamc@462	1453
adamc@462	1454 uw_check_headers(ctx, len + 1);
adamc@666	1455 strcpy(ctx->outHeaders.front, s);
adamc@666	1456 ctx->outHeaders.front += len;
adamc@562	1457 }
adamc@562	1458
adam@1934	1459 int uw_has_contentLength(uw_context ctx) {
adam@1934	1460 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934	1461 }
adam@1934	1462
adamc@1110	1463 void uw_clear_headers(uw_context ctx) {
adam@1369	1464 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1465 }
adamc@1110	1466
adam@1932	1467 void uw_Basis_clear_page(uw_context ctx) {
adam@1932	1468 uw_buffer_reset(&ctx->page);
adam@1932	1469 }
adam@1932	1470
adamc@562	1471 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1472 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1473 }
adamc@562	1474
adamc@562	1475 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1476 int len = strlen(s);
adamc@562	1477
adamc@562	1478 uw_check_script(ctx, len + 1);
adamc@666	1479 strcpy(ctx->script.front, s);
adamc@666	1480 ctx->script.front += len;
adamc@562	1481 }
adamc@562	1482
adam@1446	1483 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1484 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1485 uw_write_script(ctx, "sig=\"");
adam@1671	1486 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1487 uw_write_script(ctx, "\";");
adam@1671	1488 }
adam@1671	1489
adam@1446	1490 return ctx->script.start;
adam@1446	1491 }
adam@1446	1492
adamc@695	1493 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1494 if (s[0] == 0)
adamc@695	1495 return "";
adamc@695	1496 else {
adamc@695	1497 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1498 sprintf(r, " onload='%s'", s);
adamc@695	1499 return r;
adamc@695	1500 }
adamc@695	1501 }
adamc@695	1502
adamc@1042	1503 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1504 if (ctx->script_header[0] == 0)
adamc@1042	1505 return "";
adamc@1042	1506 else {
vshabanoff@1763	1507 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763	1508 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042	1509 return r;
adamc@1042	1510 }
adamc@1042	1511 }
adamc@1042	1512
adamc@694	1513 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1514 if (ctx->client == NULL) {
adamc@736	1515 if (ctx->needs_sig) {
adamc@1094	1516 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1517 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1518 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1519 return r;
adamc@736	1520 }
adamc@736	1521 else
adamc@736	1522 return "";
adamc@736	1523 } else {
adamc@1094	1524 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1525 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1526 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1527 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1528 (ctx->isPost ? "true" : "false"),
adamc@682	1529 ctx->client->id,
adamc@682	1530 ctx->client->pass,
adamc@1094	1531 ctx->app->url_prefix,
adamc@1094	1532 ctx->app->timeout,
adamc@736	1533 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1534 sig,
adamc@736	1535 ctx->needs_sig ? "\";" : "");
adamc@679	1536 return r;
adamc@668	1537 }
adamc@667	1538 }
adamc@667	1539
adamc@574	1540 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1541 char r, s2;
adamc@574	1542
adam@1446	1543 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1544
adamc@666	1545 r = s2 = ctx->heap.front;
adamc@574	1546 *s2++ = '"';
adamc@574	1547
adamc@574	1548 for (; *s; s++) {
adam@1286	1549 unsigned char c = *s;
adamc@574	1550
adamc@574	1551 switch (c) {
adamc@574	1552 case '"':
adamc@574	1553 strcpy(s2, "\\\"");
adamc@574	1554 s2 += 2;
adamc@574	1555 break;
adamc@1027	1556 case '\'':
adamc@1027	1557 strcpy(s2, "\\047");
adamc@1027	1558 s2 += 4;
adamc@1027	1559 break;
adamc@574	1560 case '\\':
adamc@574	1561 strcpy(s2, "\\\\");
adamc@574	1562 s2 += 2;
adamc@574	1563 break;
adam@1457	1564 case '<':
adam@1457	1565 strcpy(s2, "\\074");
adam@1457	1566 s2 += 4;
adam@1457	1567 break;
adamc@574	1568 default:
adam@1286	1569 if (isprint((int)c) \|\| c >= 128)
adamc@574	1570 *s2++ = c;
adamc@574	1571 else {
adam@1429	1572 sprintf(s2, "\\%03o", c);
adamc@574	1573 s2 += 4;
adamc@574	1574 }
adamc@574	1575 }
adamc@574	1576 }
adamc@574	1577
adamc@574	1578 strcpy(s2, "\"");
adamc@910	1579 ctx->heap.front = s2 + 2;
adamc@574	1580 return r;
adamc@574	1581 }
adamc@574	1582
adam@1286	1583 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1584 unsigned char c = c1;
adamc@1025	1585 char r, s2;
adamc@1025	1586
adam@1446	1587 uw_check_heap(ctx, 7);
adamc@1025	1588
adamc@1025	1589 r = s2 = ctx->heap.front;
adamc@1025	1590 *s2++ = '"';
adamc@1025	1591
adamc@1025	1592 switch (c) {
adamc@1025	1593 case '"':
adamc@1025	1594 strcpy(s2, "\\\"");
adamc@1025	1595 s2 += 2;
adamc@1025	1596 break;
adamc@1027	1597 case '\'':
adamc@1027	1598 strcpy(s2, "\\047");
adamc@1027	1599 s2 += 4;
adamc@1027	1600 break;
adamc@1025	1601 case '\\':
adamc@1025	1602 strcpy(s2, "\\\\");
adamc@1025	1603 s2 += 2;
adamc@1025	1604 break;
adam@1457	1605 case '<':
adam@1457	1606 strcpy(s2, "\\074");
adam@1457	1607 s2 += 4;
adam@1457	1608 break;
adamc@1025	1609 default:
adam@1286	1610 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1611 *s2++ = c;
adamc@1025	1612 else {
adam@1429	1613 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1614 s2 += 4;
adamc@1025	1615 }
adamc@1025	1616 }
adamc@1025	1617
adamc@1025	1618 strcpy(s2, "\"");
adamc@1025	1619 ctx->heap.front = s2 + 2;
adamc@1025	1620 return r;
adamc@1025	1621 }
adamc@1025	1622
adamc@574	1623 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1624 char r, s2;
adamc@574	1625
adam@1446	1626 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1627
adamc@666	1628 r = s2 = ctx->script.front;
adamc@574	1629 *s2++ = '"';
adamc@574	1630
adamc@574	1631 for (; *s; s++) {
adam@1286	1632 unsigned char c = *s;
adamc@574	1633
adamc@574	1634 switch (c) {
adamc@577	1635 case '\'':
adamc@1027	1636 strcpy(s2, "\\");
adamc@574	1637 s2 += 2;
adamc@574	1638 break;
adamc@574	1639 case '\\':
adamc@574	1640 strcpy(s2, "\\\\");
adamc@574	1641 s2 += 2;
adamc@574	1642 break;
adam@1457	1643 case '<':
adam@1457	1644 strcpy(s2, "\\074");
adam@1457	1645 s2 += 4;
adam@1457	1646 break;
adamc@574	1647 default:
adam@1286	1648 if (isprint((int)c) \|\| c >= 128)
adamc@574	1649 *s2++ = c;
adamc@574	1650 else {
adam@1429	1651 sprintf(s2, "\\%03o", c);
adamc@574	1652 s2 += 4;
adamc@574	1653 }
adamc@574	1654 }
adamc@574	1655 }
adamc@574	1656
adamc@574	1657 strcpy(s2, "\"");
adamc@666	1658 ctx->script.front = s2 + 1;
adamc@574	1659 return r;
adamc@574	1660 }
adamc@574	1661
adamc@682	1662 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1663 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1664 return "null";
adamc@682	1665 else {
adamc@682	1666 int len;
adamc@682	1667 char *r;
adamc@682	1668
adamc@682	1669 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1670 r = ctx->heap.front;
adamc@682	1671 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1672 ctx->heap.front += len+1;
adamc@682	1673 return r;
adamc@682	1674 }
adamc@682	1675 }
adamc@682	1676
adam@1446	1677 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1678 int len;
adamc@577	1679 size_t s_len = strlen(s);
adamc@562	1680
grrwlf@1998	1681 if(ctx->id < 0)
grrwlf@1998	1682 uw_error(ctx, FATAL, "Attempt to create client source using inappropriate context");
grrwlf@1998	1683
adam@1446	1684 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1685 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1686 ctx->script.front += len;
adamc@666	1687 strcpy(ctx->script.front, s);
adamc@666	1688 ctx->script.front += s_len;
adamc@970	1689 strcpy(ctx->script.front, "));");
adamc@972	1690 ctx->script.front += 3;
adamc@562	1691
adam@1446	1692 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1693 return r;
adam@1446	1694 }
adam@1446	1695
adam@1446	1696 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1697 int len;
adamc@577	1698 size_t s_len = strlen(s);
adamc@577	1699
adam@1446	1700 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1701 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1702 ctx->script.front += len;
adamc@666	1703 strcpy(ctx->script.front, s);
adamc@666	1704 ctx->script.front += s_len;
adamc@970	1705 strcpy(ctx->script.front, "));");
adamc@972	1706 ctx->script.front += 3;
adamc@577	1707
adamc@577	1708 return uw_unit_v;
adamc@577	1709 }
adamc@577	1710
adamc@311	1711 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1712 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1713 }
adamc@117	1714
adamc@311	1715 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1716 *(ctx->page.front)++ = c;
adam@1413	1717 *ctx->page.front = 0;
adamc@117	1718 }
adamc@117	1719
adamc@311	1720 void uw_writec(uw_context ctx, char c) {
adam@1413	1721 uw_check(ctx, 2);
adamc@311	1722 uw_writec_unsafe(ctx, c);
adamc@117	1723 }
adamc@117	1724
adam@2085	1725 void uw_Basis_writec(uw_context ctx, char c) {
adam@2085	1726 uw_writec(ctx, c);
adam@2085	1727 }
adam@2085	1728
adamc@311	1729 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1730 int len = strlen(s);
adamc@666	1731 memcpy(ctx->page.front, s, len);
adamc@666	1732 ctx->page.front += len;
adamc@117	1733 }
adamc@117	1734
adamc@311	1735 void uw_write(uw_context ctx, const char* s) {
adamc@311	1736 uw_check(ctx, strlen(s) + 1);
adamc@311	1737 uw_write_unsafe(ctx, s);
adamc@666	1738 *ctx->page.front = 0;
adamc@102	1739 }
adamc@106	1740
ziv@2204	1741 void uw_recordingStart(uw_context ctx) {
ziv@2262	1742 if (ctx->numRecording++ == 0) {
ziv@2262	1743 ctx->recordingOffset = ctx->page.front - ctx->page.start;
ziv@2262	1744 }
ziv@2204	1745 }
ziv@2204	1746
ziv@2204	1747 char *uw_recordingRead(uw_context ctx) {
ziv@2262	1748 // Only the outermost recorder can read unless the recording is empty.
ziv@2262	1749 char *recording = ctx->page.start + ctx->recordingOffset;
ziv@2262	1750 if (--ctx->numRecording > 0 && recording != ctx->page.front) {
ziv@2262	1751 return NULL;
ziv@2262	1752 }
ziv@2262	1753 return strdup(recording);
ziv@2204	1754 }
ziv@2204	1755
adamc@311	1756 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1757 char *result;
adamc@136	1758 int len;
adamc@311	1759 uw_check_heap(ctx, INTS_MAX);
adamc@666	1760 result = ctx->heap.front;
adamc@276	1761 sprintf(result, "%lld%n", n, &len);
adamc@666	1762 ctx->heap.front += len+1;
adamc@136	1763 return result;
adamc@106	1764 }
adamc@106	1765
adamc@311	1766 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1767 char *result;
adamc@136	1768 int len;
adamc@311	1769 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1770 result = ctx->heap.front;
adam@1920	1771 sprintf(result, "%.16g%n", n, &len);
adamc@666	1772 ctx->heap.front += len+1;
adamc@136	1773 return result;
adamc@106	1774 }
adamc@106	1775
adamc@311	1776 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1777 int len = strlen(s);
adamc@136	1778 char result, p;
adamc@311	1779 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1780
adamc@666	1781 result = p = ctx->heap.front;
adamc@136	1782
adamc@136	1783 for (; *s; s++) {
adamc@1054	1784 unsigned char c = *s;
adamc@136	1785
adamc@136	1786 if (c == '"') {
adamc@136	1787 strcpy(p, """);
adamc@136	1788 p += 6;
adamc@136	1789 } else if (c == '&') {
adamc@136	1790 strcpy(p, "&");
adamc@136	1791 p += 5;
adamc@136	1792 }
adamc@1059	1793 else
adamc@136	1794 *p++ = c;
adamc@136	1795 }
adamc@136	1796
adamc@137	1797 *p++ = 0;
adamc@666	1798 ctx->heap.front = p;
adamc@136	1799 return result;
adamc@106	1800 }
adamc@106	1801
adamc@1011	1802 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1803 char result, p;
adamc@1011	1804 uw_check_heap(ctx, 7);
adamc@1011	1805
adamc@1011	1806 result = p = ctx->heap.front;
adamc@1011	1807
adamc@1011	1808 if (c == '"') {
adamc@1011	1809 strcpy(p, """);
adamc@1011	1810 p += 6;
adamc@1011	1811 } else if (c == '&') {
adamc@1011	1812 strcpy(p, "&");
adamc@1011	1813 p += 5;
adamc@1011	1814 }
adamc@1059	1815 else
adamc@1011	1816 *p++ = c;
adamc@1011	1817
adamc@1011	1818 *p++ = 0;
adamc@1011	1819 ctx->heap.front = p;
adamc@1011	1820 return result;
adamc@1011	1821 }
adamc@1011	1822
adamc@721	1823 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1824 return s;
adamc@721	1825 }
adamc@721	1826
adamc@311	1827 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1828 int len;
adamc@117	1829
adamc@666	1830 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1831 ctx->page.front += len;
adamc@106	1832 }
adamc@106	1833
adamc@428	1834 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1835 uw_check(ctx, INTS_MAX);
adamc@311	1836 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1837
adamc@428	1838 return uw_unit_v;
adamc@106	1839 }
adamc@106	1840
adamc@428	1841 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1842 int len;
adamc@117	1843
adamc@311	1844 uw_check(ctx, FLOATS_MAX);
adamc@666	1845 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1846 ctx->page.front += len;
adamc@428	1847
adamc@428	1848 return uw_unit_v;
adamc@117	1849 }
adamc@117	1850
adamc@428	1851 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1852 uw_check(ctx, strlen(s) * 6);
adamc@117	1853
adamc@106	1854 for (; *s; s++) {
adamc@1054	1855 unsigned char c = *s;
adamc@106	1856
adamc@106	1857 if (c == '"')
adamc@311	1858 uw_write_unsafe(ctx, """);
adamc@136	1859 else if (c == '&')
adamc@311	1860 uw_write_unsafe(ctx, "&");
adamc@1059	1861 else
adamc@311	1862 uw_writec_unsafe(ctx, c);
adamc@106	1863 }
adamc@428	1864
adamc@428	1865 return uw_unit_v;
adamc@106	1866 }
adamc@120	1867
adamc@1011	1868 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1869 uw_check(ctx, 6);
adamc@1011	1870
adamc@1011	1871 if (c == '"')
adamc@1011	1872 uw_write_unsafe(ctx, """);
adamc@1011	1873 else if (c == '&')
adamc@1011	1874 uw_write_unsafe(ctx, "&");
adamc@1059	1875 else
adamc@1011	1876 uw_writec_unsafe(ctx, c);
adamc@1011	1877
adamc@1011	1878 return uw_unit_v;
adamc@1011	1879 }
adamc@1011	1880
adamc@120	1881
adamc@311	1882 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1883 int len;
adamc@137	1884 char *r;
adamc@137	1885
adamc@311	1886 uw_check_heap(ctx, INTS_MAX);
adamc@666	1887 r = ctx->heap.front;
adamc@276	1888 sprintf(r, "%lld%n", n, &len);
adamc@666	1889 ctx->heap.front += len+1;
adamc@137	1890 return r;
adamc@120	1891 }
adamc@120	1892
adamc@682	1893 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1894 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1895 return "";
adamc@682	1896 else {
adamc@682	1897 int len;
adamc@682	1898 char *r;
adamc@679	1899
adamc@682	1900 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1901 r = ctx->heap.front;
adamc@682	1902 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1903 ctx->heap.front += len+1;
adamc@682	1904 return r;
adamc@682	1905 }
adamc@679	1906 }
adamc@679	1907
adamc@311	1908 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1909 int len;
adamc@137	1910 char *r;
adamc@137	1911
adamc@311	1912 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1913 r = ctx->heap.front;
adamc@137	1914 sprintf(r, "%g%n", n, &len);
adamc@666	1915 ctx->heap.front += len+1;
adamc@137	1916 return r;
adamc@120	1917 }
adamc@120	1918
adamc@311	1919 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1920 char r, p;
adamc@137	1921
adamc@925	1922 if (s[0] == '\0')
adamc@925	1923 return "_";
adamc@925	1924
adamc@925	1925 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1926
adamc@925	1927 r = p = ctx->heap.front;
adamc@925	1928 if (s[0] == '_')
adamc@925	1929 *p++ = '_';
adamc@925	1930
adamc@925	1931 for (; *s; s++) {
adamc@1087	1932 unsigned char c = *s;
adamc@137	1933
adamc@137	1934 if (c == ' ')
adamc@137	1935 *p++ = '+';
adamc@137	1936 else if (isalnum(c))
adamc@137	1937 *p++ = c;
adamc@137	1938 else {
adamc@1259	1939 sprintf(p, ".%02X", c);
adamc@137	1940 p += 3;
adamc@137	1941 }
adamc@137	1942 }
adamc@137	1943
adamc@137	1944 *p++ = 0;
adamc@666	1945 ctx->heap.front = p;
adamc@137	1946 return r;
adamc@120	1947 }
adamc@120	1948
adamc@311	1949 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1950 if (b == uw_Basis_False)
adamc@186	1951 return "0";
adamc@186	1952 else
adamc@186	1953 return "1";
adamc@186	1954 }
adamc@186	1955
adam@1620	1956 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1957 char *r;
adam@1620	1958 int len;
adam@1620	1959 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1960 r = ctx->heap.front;
adam@1620	1961 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1962 ctx->heap.front += len+1;
adam@1620	1963 return r;
adam@1620	1964 }
adam@1620	1965
adamc@311	1966 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1967 int len;
adamc@120	1968
adamc@666	1969 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1970 ctx->page.front += len;
adamc@120	1971 }
adamc@120	1972
adamc@428	1973 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1974 uw_check(ctx, INTS_MAX);
adamc@311	1975 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1976
adamc@428	1977 return uw_unit_v;
adamc@120	1978 }
adamc@120	1979
adamc@682	1980 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1981 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1982 int len;
phurst@1981	1983
adamc@682	1984 uw_check(ctx, INTS_MAX + 1);
adamc@682	1985 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1986 ctx->page.front += len;
adamc@682	1987 }
phurst@1981	1988
adamc@679	1989 return uw_unit_v;
adamc@679	1990 }
adamc@679	1991
adamc@428	1992 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1993 int len;
adamc@120	1994
adamc@311	1995 uw_check(ctx, FLOATS_MAX);
adamc@666	1996 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1997 ctx->page.front += len;
adamc@428	1998
adamc@428	1999 return uw_unit_v;
adamc@120	2000 }
adamc@120	2001
adamc@488	2002 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	2003 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	2004 }
adamc@488	2005
adam@1404	2006 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	2007 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	2008 }
adam@1404	2009
adamc@428	2010 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	2011 if (s[0] == '\0') {
adamc@925	2012 uw_check(ctx, 1);
adamc@925	2013 uw_writec_unsafe(ctx, '_');
adamc@925	2014 return uw_unit_v;
adamc@925	2015 }
adamc@925	2016
adamc@925	2017 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	2018
adamc@925	2019 if (s[0] == '_')
adamc@925	2020 uw_writec_unsafe(ctx, '_');
adamc@120	2021
adamc@120	2022 for (; *s; s++) {
adamc@1087	2023 unsigned char c = *s;
adamc@120	2024
adamc@120	2025 if (c == ' ')
adamc@311	2026 uw_writec_unsafe(ctx, '+');
adamc@120	2027 else if (isalnum(c))
adamc@311	2028 uw_writec_unsafe(ctx, c);
adamc@120	2029 else {
adamc@1259	2030 sprintf(ctx->page.front, ".%02X", c);
adamc@666	2031 ctx->page.front += 3;
adamc@120	2032 }
adamc@120	2033 }
adamc@428	2034
adamc@428	2035 return uw_unit_v;
adamc@120	2036 }
adamc@120	2037
adamc@428	2038 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2039 if (b == uw_Basis_False)
adamc@311	2040 uw_writec(ctx, '0');
adamc@186	2041 else
adamc@311	2042 uw_writec(ctx, '1');
adamc@428	2043
adamc@428	2044 return uw_unit_v;
adamc@186	2045 }
adamc@186	2046
adam@1620	2047 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	2048 int len;
phurst@1981	2049
adam@1620	2050 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	2051 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	2052 ctx->page.front += len;
phurst@1981	2053
adam@1620	2054 return uw_unit_v;
adam@1620	2055 }
adam@1620	2056
adamc@120	2057
adamc@311	2058 static char uw_unurlify_advance(char s) {
adamc@144	2059 char *new_s = strchr(s, '/');
adamc@120	2060
adamc@120	2061 if (new_s)
adamc@120	2062 *new_s++ = 0;
adamc@120	2063 else
adamc@144	2064 new_s = strchr(s, 0);
adamc@144	2065
adamc@144	2066 return new_s;
adamc@144	2067 }
adamc@144	2068
adamc@311	2069 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	2070 char new_s = uw_unurlify_advance(s);
adamc@311	2071 uw_Basis_int r;
adamc@120	2072
adamc@276	2073 r = atoll(*s);
adamc@120	2074 *s = new_s;
adamc@120	2075 return r;
adamc@120	2076 }
adamc@120	2077
adamc@311	2078 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	2079 char new_s = uw_unurlify_advance(s);
adamc@311	2080 uw_Basis_float r;
adamc@120	2081
adamc@120	2082 r = atof(*s);
adamc@120	2083 *s = new_s;
adamc@120	2084 return r;
adamc@120	2085 }
adamc@120	2086
adamc@488	2087 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	2088 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	2089 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	2090 return r;
adamc@488	2091 }
adamc@488	2092
adamc@1023	2093 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	2094 char s1, s2 = s;
adamc@144	2095 int n;
adamc@136	2096
adamc@1023	2097 if (!fromClient) {
adamc@1023	2098 if (*s2 == '_')
adamc@1023	2099 ++s2;
adamc@1259	2100 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	2101 s2 += 3;
adamc@1023	2102 }
adamc@925	2103
adamc@927	2104 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	2105 unsigned char c = *s2;
adamc@136	2106
adamc@136	2107 switch (c) {
adamc@136	2108 case '+':
adamc@136	2109 *s1 = ' ';
adamc@136	2110 break;
adamc@136	2111 case '%':
adamc@169	2112 if (s2[1] == 0)
adamc@311	2113 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	2114 if (s2[2] == 0)
adamc@311	2115 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	2116 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2117 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	2118 *s1 = n;
adamc@136	2119 s2 += 2;
adamc@136	2120 break;
adamc@1259	2121 case '.':
adamc@1259	2122 if (!fromClient) {
adamc@1259	2123 if (s2[1] == 0)
adamc@1259	2124 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	2125 if (s2[2] == 0)
adamc@1259	2126 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	2127 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2128 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	2129 *s1 = n;
adamc@1259	2130 s2 += 2;
adamc@1259	2131 break;
adamc@1259	2132 }
adamc@136	2133 default:
adamc@136	2134 *s1 = c;
adamc@136	2135 }
adamc@136	2136 }
adamc@136	2137 *s1++ = 0;
adamc@144	2138 return s1;
adamc@144	2139 }
adamc@144	2140
adamc@311	2141 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	2142 char new_s = uw_unurlify_advance(s);
adamc@311	2143 uw_Basis_bool r;
phurst@1981	2144
adamc@186	2145 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2146 r = uw_Basis_False;
adamc@186	2147 else
adamc@311	2148 r = uw_Basis_True;
adamc@186	2149
adamc@186	2150 *s = new_s;
adamc@186	2151 return r;
adamc@186	2152 }
adamc@186	2153
adamc@311	2154 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2155 char new_s = uw_unurlify_advance(s);
adamc@1134	2156 char *r;
adamc@1134	2157 int len;
adamc@144	2158
adamc@200	2159 len = strlen(*s);
adamc@311	2160 uw_check_heap(ctx, len + 1);
adamc@144	2161
adamc@666	2162 r = ctx->heap.front;
adamc@1023	2163 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2164 *s = new_s;
adamc@1023	2165 return r;
adamc@1023	2166 }
adamc@1023	2167
adamc@1109	2168 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2169 s = uw_unurlify_advance(s);
adamc@1109	2170 return uw_unit_v;
adamc@1109	2171 }
adamc@1109	2172
adamc@1023	2173 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2174 char new_s = uw_unurlify_advance(s);
adamc@1134	2175 char *r;
adamc@1134	2176 int len;
adamc@1023	2177
adamc@1023	2178 len = strlen(*s);
adamc@1023	2179 uw_check_heap(ctx, len + 1);
adamc@1023	2180
adamc@1023	2181 r = ctx->heap.front;
adamc@1023	2182 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2183 *s = new_s;
adamc@136	2184 return r;
adamc@120	2185 }
adamc@135	2186
adamc@135	2187
adamc@311	2188 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2189 int len;
adamc@286	2190 char *r;
adamc@286	2191
adamc@311	2192 uw_check_heap(ctx, INTS_MAX);
adamc@666	2193 r = ctx->heap.front;
adamc@286	2194 sprintf(r, "%lld%n", n, &len);
adamc@666	2195 ctx->heap.front += len+1;
adamc@286	2196 return r;
adamc@286	2197 }
adamc@286	2198
adamc@428	2199 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2200 int len;
adamc@286	2201
adamc@311	2202 uw_check(ctx, INTS_MAX);
adamc@666	2203 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2204 ctx->page.front += len;
phurst@1981	2205
adamc@428	2206 return uw_unit_v;
adamc@286	2207 }
adamc@286	2208
adam@1358	2209 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2210 unsigned int n = ch;
adam@1358	2211 int len;
adam@1358	2212 char *r;
adam@1358	2213
adam@1358	2214 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2215 r = ctx->heap.front;
adam@1358	2216 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2217 ctx->heap.front += len+1;
adam@1358	2218 return r;
adam@1358	2219 }
adam@1358	2220
adam@1358	2221 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2222 unsigned int n = ch;
adam@1358	2223 int len;
adam@1358	2224
adam@1358	2225 uw_check(ctx, INTS_MAX+3);
adam@1358	2226 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2227 ctx->page.front += len;
adam@1358	2228 return uw_unit_v;
adam@1358	2229 }
adam@1358	2230
adamc@311	2231 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2232 int len;
adamc@286	2233 char *r;
adamc@286	2234
adamc@311	2235 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2236 r = ctx->heap.front;
adamc@286	2237 sprintf(r, "%g%n", n, &len);
adamc@666	2238 ctx->heap.front += len+1;
adamc@286	2239 return r;
adamc@286	2240 }
adamc@286	2241
adamc@428	2242 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2243 int len;
adamc@286	2244
adamc@311	2245 uw_check(ctx, FLOATS_MAX);
adamc@666	2246 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2247 ctx->page.front += len;
adamc@428	2248
adamc@428	2249 return uw_unit_v;
adamc@286	2250 }
adamc@286	2251
adam@1365	2252 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2253 int len;
adam@1360	2254 char *r;
adam@1360	2255
adam@1360	2256 uw_check_heap(ctx, INTS_MAX);
adam@1360	2257 r = ctx->heap.front;
adamc@1377	2258 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2259 ctx->heap.front += len+1;
adam@1360	2260 return r;
adam@1360	2261 }
adam@1360	2262
adam@1365	2263 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2264 int len;
adam@1360	2265
adam@1360	2266 uw_check(ctx, INTS_MAX);
adam@1360	2267 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2268 ctx->page.front += len;
phurst@1981	2269
adam@1360	2270 return uw_unit_v;
adam@1360	2271 }
adam@1360	2272
adam@1444	2273 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2274 char r, s2;
adamc@137	2275
adamc@311	2276 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2277
adamc@666	2278 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2279 unsigned char c = *s;
adamc@137	2280
adamc@137	2281 switch (c) {
adamc@137	2282 case '<':
adamc@137	2283 strcpy(s2, "<");
adamc@137	2284 s2 += 4;
adamc@137	2285 break;
adamc@137	2286 case '&':
adamc@137	2287 strcpy(s2, "&");
adamc@137	2288 s2 += 5;
adamc@137	2289 break;
adamc@137	2290 default:
adamc@1059	2291 *s2++ = c;
adamc@137	2292 }
adamc@137	2293 }
adamc@137	2294
adamc@137	2295 *s2++ = 0;
adamc@666	2296 ctx->heap.front = s2;
adamc@137	2297 return r;
adamc@135	2298 }
adamc@135	2299
adamc@428	2300 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2301 uw_check(ctx, strlen(s) * 6);
adamc@135	2302
adamc@135	2303 for (; *s; s++) {
adamc@1054	2304 unsigned char c = *s;
adamc@135	2305
adamc@135	2306 switch (c) {
adamc@135	2307 case '<':
adamc@311	2308 uw_write_unsafe(ctx, "<");
adamc@135	2309 break;
adamc@135	2310 case '&':
adamc@311	2311 uw_write_unsafe(ctx, "&");
adamc@135	2312 break;
adamc@135	2313 default:
adamc@1059	2314 uw_writec_unsafe(ctx, c);
adamc@135	2315 }
adamc@135	2316 }
adamc@428	2317
adamc@428	2318 return uw_unit_v;
adamc@135	2319 }
adamc@180	2320
adamc@311	2321 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2322 if (b == uw_Basis_False)
adamc@286	2323 return "False";
adamc@286	2324 else
adamc@286	2325 return "True";
adamc@286	2326 }
adamc@286	2327
adamc@428	2328 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2329 if (b == uw_Basis_False) {
adamc@311	2330 uw_check(ctx, 6);
adamc@666	2331 strcpy(ctx->page.front, "False");
adamc@666	2332 ctx->page.front += 5;
adamc@286	2333 } else {
adamc@311	2334 uw_check(ctx, 5);
adamc@666	2335 strcpy(ctx->page.front, "True");
adamc@666	2336 ctx->page.front += 4;
adamc@286	2337 }
adamc@428	2338
adamc@428	2339 return uw_unit_v;
adamc@286	2340 }
adamc@286	2341
adamc@436	2342 #define TIME_FMT "%x %X"
adamc@438	2343 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2344 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2345
adam@1629	2346 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2347
adamc@436	2348 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2349 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2350 }
adamc@436	2351
adamc@436	2352 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2353 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2354 }
adamc@436	2355
adam@1446	2356 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2357 int len;
adam@1446	2358 char *r;
adam@1446	2359
adam@1446	2360 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2361 r = ctx->heap.front;
adam@1446	2362 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2363 ctx->heap.front += len+1;
adam@1446	2364 return r;
adam@1446	2365 }
adam@1446	2366
adam@1446	2367 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2368 int len;
adam@1446	2369
adam@1446	2370 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2371 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2372 ctx->page.front += len;
phurst@1981	2373
adam@1446	2374 return uw_unit_v;
adam@1446	2375 }
adam@1446	2376
adamc@821	2377 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2378 while (n >= 0) {
adam@1388	2379 if (*s == 0)
adam@1388	2380 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2381
adam@1388	2382 if (n == 0)
adam@1388	2383 return *s;
adam@1388	2384
adam@1388	2385 --n;
adam@1388	2386 ++s;
adam@1388	2387 }
adam@1388	2388
adam@1388	2389 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2390 }
adamc@821	2391
adamc@821	2392 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2393 while (n >= 0) {
adam@1388	2394 if (*s == 0 \|\| n == 0)
adam@1388	2395 return s;
adam@1388	2396
adam@1388	2397 --n;
adam@1388	2398 ++s;
adam@1388	2399 }
adam@1388	2400
adam@1388	2401 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2402 }
adamc@821	2403
adamc@828	2404 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2405 return strlen(s);
adamc@828	2406 }
adamc@828	2407
adam@1388	2408 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2409 while (n > 0) {
adam@1388	2410 if (*s == 0)
adam@1388	2411 return uw_Basis_False;
adam@1388	2412
adam@1388	2413 --n;
adam@1388	2414 ++s;
adam@1388	2415 }
adam@1388	2416
adam@1388	2417 return uw_Basis_True;
adam@1388	2418 }
adam@1388	2419
adamc@829	2420 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2421 return strchr(s, ch);
adamc@829	2422 }
adamc@829	2423
adamc@831	2424 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2425 return strcspn(s, chs);
adamc@831	2426 }
adamc@831	2427
adamc@829	2428 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2429 uw_Basis_string r = strchr(s, ch);
adamc@829	2430 if (r == NULL)
adamc@829	2431 return NULL;
adamc@829	2432 else {
adamc@829	2433 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2434 *nr = r - s;
adamc@829	2435 return nr;
adamc@829	2436 }
adamc@829	2437 }
adamc@829	2438
adam@1390	2439 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2440 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2441 if (r == NULL)
adam@1390	2442 return NULL;
adam@1390	2443 else {
adam@1390	2444 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2445 *nr = r - haystack;
adam@1390	2446 return nr;
adam@1390	2447 }
adam@1390	2448 }
adam@1390	2449
adamc@311	2450 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2451 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2452 char *s;
adamc@180	2453
adamc@311	2454 uw_check_heap(ctx, len);
adamc@180	2455
adamc@666	2456 s = ctx->heap.front;
adamc@180	2457
adamc@180	2458 strcpy(s, s1);
adamc@180	2459 strcat(s, s2);
adamc@666	2460 ctx->heap.front += len;
adamc@180	2461
adamc@180	2462 return s;
adamc@180	2463 }
adamc@278	2464
adamc@829	2465 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2466 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2467
adamc@829	2468 if (start < 0)
adamc@829	2469 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2470 if (len < 0)
adamc@829	2471 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2472 if (start + len > full_len)
adamc@829	2473 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2474
adamc@829	2475 if (start + len == full_len)
adamc@829	2476 return &s[start];
adamc@829	2477 else {
adamc@829	2478 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2479 memcpy(r, s+start, len);
adamc@829	2480 r[len] = 0;
adamc@829	2481 return r;
adamc@829	2482 }
phurst@1981	2483
adamc@829	2484 }
adamc@829	2485
adamc@1023	2486 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2487 char *r;
adamc@1023	2488
adamc@1023	2489 uw_check_heap(ctx, 2);
adamc@1023	2490 r = ctx->heap.front;
adamc@1023	2491 r[0] = ch;
adamc@1023	2492 r[1] = 0;
adamc@1023	2493
adamc@1023	2494 ctx->heap.front += 2;
adamc@1023	2495
adamc@1023	2496 return r;
adamc@1023	2497 }
adamc@1023	2498
adamc@737	2499 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2500 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2501 char *s;
adamc@278	2502
adamc@311	2503 uw_check_heap(ctx, len);
adamc@278	2504
adamc@666	2505 s = ctx->heap.front;
adamc@278	2506
adamc@278	2507 strcpy(s, s1);
adamc@666	2508 ctx->heap.front += len;
adamc@278	2509
adamc@278	2510 return s;
adamc@278	2511 }
adamc@280	2512
adam@1295	2513 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2514 if (ctx->error_message[0]) {
adam@1295	2515 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2516 ctx->error_message[0] = 0;
adam@1295	2517 return s;
adam@1295	2518 } else
adam@1295	2519 return NULL;
adam@1295	2520 }
adam@1295	2521
adamc@737	2522 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2523 if (s1)
adamc@737	2524 return uw_strdup(ctx, s1);
adamc@493	2525 else
adamc@493	2526 return NULL;
adamc@493	2527 }
adamc@493	2528
adamc@742	2529 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2530 char *r = uw_malloc(ctx, len);
adamc@742	2531 memcpy(r, p, len);
adamc@742	2532 return r;
adamc@742	2533 }
adamc@280	2534
adamc@879	2535 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2536
adamc@311	2537 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2538 int len;
adamc@281	2539 char *r;
adamc@281	2540
adamc@311	2541 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2542 r = ctx->heap.front;
adamc@879	2543 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2544 ctx->heap.front += len+1;
adamc@281	2545 return r;
adamc@281	2546 }
adamc@281	2547
adamc@467	2548 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2549 if (n == NULL)
adamc@467	2550 return "NULL";
adamc@467	2551 else
adamc@467	2552 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2553 }
adamc@467	2554
adam@1920	2555 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879	2556
adamc@311	2557 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2558 int len;
adamc@281	2559 char *r;
adamc@281	2560
adamc@311	2561 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2562 r = ctx->heap.front;
adamc@879	2563 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2564 ctx->heap.front += len+1;
adamc@281	2565 return r;
adamc@281	2566 }
adamc@281	2567
adamc@467	2568 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2569 if (n == NULL)
adamc@467	2570 return "NULL";
adamc@467	2571 else
adamc@467	2572 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2573 }
adamc@467	2574
adam@1834	2575 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2576 char *uw_sqlsuffixString = "::text";
adamc@1011	2577 char *uw_sqlsuffixChar = "::char";
adamc@281	2578
adamc@311	2579 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2580 char r, s2;
adamc@280	2581
adamc@879	2582 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2583
adamc@666	2584 r = s2 = ctx->heap.front;
adamc@879	2585 if (uw_Estrings)
adamc@879	2586 *s2++ = 'E';
adamc@280	2587 *s2++ = '\'';
adamc@280	2588
adamc@280	2589 for (; *s; s++) {
adamc@280	2590 char c = *s;
adamc@280	2591
adamc@280	2592 switch (c) {
adamc@280	2593 case '\'':
adamc@885	2594 if (uw_Estrings)
adamc@885	2595 strcpy(s2, "\\'");
adamc@885	2596 else
adamc@885	2597 strcpy(s2, "''");
adamc@280	2598 s2 += 2;
adamc@280	2599 break;
adamc@280	2600 case '\\':
adamc@885	2601 if (uw_Estrings) {
adamc@885	2602 strcpy(s2, "\\\\");
adamc@885	2603 s2 += 2;
adamc@885	2604 } else
adamc@885	2605 *s2++ = '\\';
adamc@280	2606 break;
adamc@280	2607 default:
adamc@1150	2608 if (isprint((int)c))
adamc@280	2609 *s2++ = c;
adamc@879	2610 else if (uw_Estrings) {
adam@1857	2611 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2612 s2 += 4;
adamc@280	2613 }
adamc@879	2614 else
adam@1689	2615 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2616 }
adamc@280	2617 }
adamc@280	2618
adamc@879	2619 *s2++ = '\'';
adamc@879	2620 strcpy(s2, uw_sqlsuffixString);
adamc@879	2621 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2622 return r;
adamc@280	2623 }
adamc@281	2624
adamc@1011	2625 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2626 char r, s2;
adamc@1011	2627
adamc@1011	2628 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2629
adamc@1011	2630 r = s2 = ctx->heap.front;
adamc@1011	2631 if (uw_Estrings)
adamc@1011	2632 *s2++ = 'E';
adamc@1011	2633 *s2++ = '\'';
adamc@1011	2634
adamc@1011	2635 switch (c) {
adamc@1011	2636 case '\'':
adamc@1011	2637 if (uw_Estrings)
adamc@1011	2638 strcpy(s2, "\\'");
adamc@1011	2639 else
adamc@1011	2640 strcpy(s2, "''");
adamc@1011	2641 s2 += 2;
adamc@1011	2642 break;
adamc@1011	2643 case '\\':
adamc@1011	2644 if (uw_Estrings) {
adamc@1011	2645 strcpy(s2, "\\\\");
adamc@1011	2646 s2 += 2;
adamc@1011	2647 } else
adamc@1011	2648 *s2++ = '\\';
adamc@1011	2649 break;
adamc@1011	2650 default:
adamc@1150	2651 if (isprint((int)c))
adamc@1011	2652 *s2++ = c;
adamc@1011	2653 else if (uw_Estrings) {
adam@1857	2654 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2655 s2 += 4;
adamc@1011	2656 }
adamc@1011	2657 else
adamc@1011	2658 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2659 }
adamc@1011	2660
adamc@1011	2661 *s2++ = '\'';
adamc@1011	2662 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2663 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2664 return r;
adamc@1011	2665 }
adamc@1011	2666
adamc@879	2667 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2668
adam@1867	2669 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2670 char r, s2;
adamc@737	2671 size_t i;
adamc@737	2672
adam@1867	2673 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2674
adamc@737	2675 r = s2 = ctx->heap.front;
adamc@879	2676 if (uw_Estrings)
adamc@879	2677 *s2++ = 'E';
adam@1867	2678 else
adam@1867	2679 *s2++ = 'X';
adamc@737	2680 *s2++ = '\'';
adamc@737	2681
adamc@737	2682 for (i = 0; i < b.size; ++i) {
adam@1867	2683 unsigned char c = b.data[i];
adam@1867	2684
adam@1867	2685 if (uw_Estrings) {
adam@1867	2686 switch (c) {
adam@1867	2687 case '\'':
adamc@885	2688 strcpy(s2, "\\'");
adam@1867	2689 s2 += 2;
adam@1867	2690 break;
adam@1867	2691 case '\\':
adamc@885	2692 strcpy(s2, "\\\\\\\\");
adamc@885	2693 s2 += 4;
adam@1867	2694 break;
adam@1867	2695 default:
adam@1867	2696 if (isprint((int)c))
adam@1867	2697 *s2++ = c;
adam@1867	2698 else {
adam@1867	2699 sprintf(s2, "\\\\%03o", c);
adam@1867	2700 s2 += 5;
adam@1867	2701 }
adamc@737	2702 }
adam@1867	2703 } else {
adam@1867	2704 sprintf(s2, "%02X", c);
adam@1867	2705 s2 += 2;
adamc@737	2706 }
phurst@1981	2707 }
adamc@737	2708
adamc@879	2709 *s2++ = '\'';
adamc@879	2710 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2711 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2712 return r;
adamc@737	2713 }
adamc@737	2714
adamc@682	2715 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2716 int len;
adamc@682	2717 char *r;
adamc@682	2718 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2719
adamc@682	2720 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2721 r = ctx->heap.front;
adamc@879	2722 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2723 ctx->heap.front += len+1;
adamc@682	2724 return r;
adamc@682	2725 }
adamc@682	2726
adamc@682	2727 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2728 int len;
adamc@682	2729 char *r;
adamc@682	2730 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2731
adamc@682	2732 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2733 r = ctx->heap.front;
adamc@682	2734 sprintf(r, "%lld%n", combo, &len);
adamc@682	2735 ctx->heap.front += len+1;
adamc@682	2736 return r;
adamc@682	2737 }
adamc@682	2738
adamc@879	2739 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2740
adamc@682	2741 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2742 int len;
adamc@682	2743 char *r;
adamc@682	2744
adamc@682	2745 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2746 r = ctx->heap.front;
adamc@879	2747 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2748 ctx->heap.front += len+1;
adamc@682	2749 return r;
adamc@682	2750 }
adamc@682	2751
adamc@682	2752 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2753 int len;
adamc@682	2754 char *r;
adamc@682	2755
adamc@682	2756 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2757 r = ctx->heap.front;
adamc@682	2758 sprintf(r, "%u%n", cli, &len);
adamc@682	2759 ctx->heap.front += len+1;
adamc@682	2760 return r;
adamc@682	2761 }
adamc@682	2762
adamc@467	2763 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2764 if (s == NULL)
adamc@467	2765 return "NULL";
adamc@467	2766 else
adamc@467	2767 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2768 }
adamc@467	2769
adamc@311	2770 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2771 if (b == uw_Basis_False)
adamc@281	2772 return "FALSE";
adamc@281	2773 else
adamc@281	2774 return "TRUE";
adamc@281	2775 }
adamc@282	2776
adamc@467	2777 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2778 if (b == NULL)
adamc@467	2779 return "NULL";
adamc@467	2780 else
adamc@467	2781 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2782 }
adamc@467	2783
adamc@439	2784 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2785 size_t len;
adamc@682	2786 char r, s;
adam@1392	2787 struct tm stm = {};
adam@1392	2788 stm.tm_isdst = -1;
adamc@682	2789
adam@1365	2790 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2791 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2792 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2793 if (uw_sql_type_annotations) {
adam@1834	2794 if (t.microseconds) {
adam@1834	2795 r = uw_malloc(ctx, len + 21);
adam@1834	2796 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2797 } else {
adam@1834	2798 r = uw_malloc(ctx, len + 14);
adam@1834	2799 sprintf(r, "'%s'::timestamp", s);
adam@1834	2800 }
adam@1367	2801 } else {
adam@1834	2802 r = uw_malloc(ctx, len + 3);
adam@1834	2803 sprintf(r, "'%s'", s);
adam@1367	2804 }
adamc@682	2805 return r;
adamc@682	2806 } else
adamc@682	2807 return "<Invalid time>";
adamc@682	2808 }
adamc@682	2809
adamc@682	2810 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2811 size_t len;
adamc@439	2812 char *r;
adam@1392	2813 struct tm stm = {};
adam@1392	2814 stm.tm_isdst = -1;
adamc@439	2815
adam@1365	2816 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2817 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2818 r = ctx->heap.front;
adamc@439	2819 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2820 ctx->heap.front += len+1;
adamc@439	2821 return r;
adamc@439	2822 } else
adamc@439	2823 return "<Invalid time>";
adamc@439	2824 }
adamc@439	2825
adam@1364	2826 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2827 size_t len;
adam@1364	2828 char *r;
adam@1392	2829 struct tm stm = {};
adam@1392	2830 stm.tm_isdst = -1;
adam@1364	2831
adam@1365	2832 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2833 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2834 r = ctx->heap.front;
adam@1365	2835 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2836 ctx->heap.front += len;
adam@1365	2837 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2838 ctx->heap.front += 8;
adam@1364	2839 return r;
adam@1364	2840 } else
adam@1364	2841 return "<Invalid time>";
adam@1364	2842 }
adam@1364	2843
adamc@467	2844 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2845 if (t == NULL)
adamc@467	2846 return "NULL";
adamc@467	2847 else
adamc@467	2848 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2849 }
adamc@467	2850
adamc@311	2851 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2852 static uw_Basis_int true = 1;
adamc@311	2853 static uw_Basis_int false = 0;
adamc@282	2854
adamc@311	2855 if (b == uw_Basis_False)
adamc@282	2856 return (char *)&false;
adamc@282	2857 else
adamc@282	2858 return (char *)&true;
adamc@282	2859 }
adamc@284	2860
adamc@311	2861 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2862 int len;
adamc@284	2863 char *r;
adamc@284	2864
adamc@311	2865 uw_check_heap(ctx, INTS_MAX);
adamc@666	2866 r = ctx->heap.front;
adamc@284	2867 sprintf(r, "%lld%n", n, &len);
adamc@666	2868 ctx->heap.front += len+1;
adamc@284	2869 return r;
adamc@284	2870 }
adamc@285	2871
adamc@311	2872 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2873 int len;
adamc@285	2874 char *r;
adamc@285	2875
adamc@311	2876 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2877 r = ctx->heap.front;
adamc@285	2878 sprintf(r, "%g%n", n, &len);
adamc@666	2879 ctx->heap.front += len+1;
adamc@285	2880 return r;
adamc@285	2881 }
adamc@285	2882
adamc@821	2883 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2884 char *r = uw_malloc(ctx, 2);
adamc@821	2885 r[0] = ch;
adamc@821	2886 r[1] = 0;
adamc@821	2887 return r;
adamc@821	2888 }
adamc@821	2889
adamc@311	2890 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2891 if (b == uw_Basis_False)
adamc@285	2892 return "False";
adamc@285	2893 else
adamc@285	2894 return "True";
adamc@285	2895 }
adamc@288	2896
adam@1359	2897 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2898 size_t len;
adam@1352	2899 char *r;
adam@1392	2900 struct tm stm = {};
adam@1392	2901 stm.tm_isdst = -1;
adam@1352	2902
adam@1365	2903 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2904 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2905 r = ctx->heap.front;
adam@1352	2906 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2907 ctx->heap.front += len+1;
adam@1352	2908 return r;
adam@1352	2909 } else
adam@1352	2910 return "<Invalid time>";
adam@1352	2911 }
adam@1352	2912
adam@1629	2913 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2914 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2915 }
adam@1629	2916
adamc@311	2917 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2918 char *endptr;
adamc@311	2919 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2920
adamc@288	2921 if (s != '\0' && endptr == '\0') {
adamc@311	2922 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2923 *r = n;
adamc@288	2924 return r;
adamc@288	2925 } else
adamc@288	2926 return NULL;
adamc@288	2927 }
adamc@289	2928
adamc@311	2929 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2930 char *endptr;
adamc@311	2931 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2932
adamc@289	2933 if (s != '\0' && endptr == '\0') {
adamc@311	2934 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2935 *r = n;
adamc@289	2936 return r;
adamc@289	2937 } else
adamc@289	2938 return NULL;
adamc@289	2939 }
adamc@289	2940
adamc@821	2941 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2942 if (s[0] == 0) {
adamc@821	2943 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2944 r[0] = 0;
adamc@821	2945 return r;
adamc@821	2946 } else if (s[1] != 0)
adamc@821	2947 return NULL;
adamc@821	2948 else {
adamc@821	2949 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2950 r[0] = s[0];
adamc@821	2951 return r;
adamc@821	2952 }
adamc@821	2953 }
adamc@821	2954
adamc@311	2955 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2956 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2957 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2958
adamc@289	2959 if (!strcasecmp (s, "True"))
adamc@289	2960 return &true;
adamc@289	2961 else if (!strcasecmp (s, "False"))
adamc@289	2962 return &false;
adamc@289	2963 else
adamc@289	2964 return NULL;
adamc@289	2965 }
adamc@292	2966
adamc@436	2967 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2968 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2969 struct tm stm = {};
adam@1392	2970 stm.tm_isdst = -1;
adamc@436	2971
adamc@439	2972 if (dot) {
adamc@439	2973 *dot = 0;
adamc@439	2974 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2975 *dot = '.';
adamc@439	2976 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2977 r->seconds = mktime(&stm);
adam@1365	2978 r->microseconds = 0;
adamc@439	2979 return r;
adamc@439	2980 }
adamc@439	2981 else {
adamc@439	2982 *dot = '.';
adamc@439	2983 return NULL;
adamc@439	2984 }
adamc@436	2985 }
adamc@439	2986 else {
adam@2072	2987 if (strptime(s, ctx->app->time_format, &stm) == end) {
adamc@439	2988 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2989 r->seconds = mktime(&stm);
adam@1365	2990 r->microseconds = 0;
adamc@439	2991 return r;
adam@2072	2992 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@2072	2993 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@2072	2994 r->seconds = mktime(&stm);
adam@2072	2995 r->microseconds = 0;
adam@2072	2996 return r;
adam@2072	2997 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2998 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2999 r->seconds = mktime(&stm);
adam@1365	3000 r->microseconds = 0;
adamc@439	3001 return r;
adam@1632	3002 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3003 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	3004 r->seconds = mktime(&stm);
adam@1632	3005 r->microseconds = 0;
adam@1632	3006 return r;
adamc@439	3007 }
adamc@439	3008 else
adamc@439	3009 return NULL;
adamc@439	3010 }
adamc@436	3011 }
adamc@436	3012
adam@1352	3013 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	3014 char *end = strchr(s, 0);
adam@1374	3015 struct tm stm = {};
adam@1392	3016 stm.tm_isdst = -1;
adam@1352	3017
adam@1352	3018 if (strptime(s, fmt, &stm) == end) {
adam@1352	3019 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	3020 r->seconds = mktime(&stm);
adam@1365	3021 r->microseconds = 0;
adam@1352	3022 return r;
adam@1352	3023 }
adam@1352	3024 else
adam@1352	3025 return NULL;
adam@1352	3026 }
adam@1352	3027
adamc@311	3028 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	3029 char *endptr;
adamc@311	3030 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	3031
adamc@292	3032 if (s != '\0' && endptr == '\0')
adamc@292	3033 return n;
adamc@292	3034 else
adam@1444	3035 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	3036 }
adamc@293	3037
adamc@682	3038 #include <errno.h>
adamc@682	3039
adamc@678	3040 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	3041 unsigned long long n;
adamc@682	3042
adamc@682	3043 if (sscanf(s, "%llu", &n) < 1)
adam@1444	3044 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	3045 else {
adamc@682	3046 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	3047 return ch;
adamc@682	3048 }
adamc@682	3049 }
adamc@682	3050
adamc@682	3051 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	3052 char *endptr;
adamc@682	3053 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	3054
adamc@678	3055 if (s != '\0' && endptr == '\0')
adamc@678	3056 return n;
adamc@678	3057 else
adam@1444	3058 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	3059 }
adamc@678	3060
adamc@311	3061 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	3062 char *endptr;
adamc@311	3063 uw_Basis_float n = strtod(s, &endptr);
adamc@293	3064
adamc@293	3065 if (s != '\0' && endptr == '\0')
adamc@293	3066 return n;
adamc@293	3067 else
adam@1444	3068 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3069 }
adamc@293	3070
adamc@821	3071 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	3072 if (s[0] == 0)
adamc@821	3073 return 0;
adamc@821	3074 else if (s[1] != 0)
adam@1444	3075 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	3076 else
adamc@821	3077 return s[0];
adamc@821	3078 }
adamc@821	3079
adamc@311	3080 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	3081 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	3082 return uw_Basis_True;
adamc@296	3083 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	3084 return uw_Basis_False;
adamc@293	3085 else
adam@1444	3086 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3087 }
adamc@436	3088
adam@1352	3089 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	3090 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	3091 struct tm stm = {};
adam@1392	3092 stm.tm_isdst = -1;
adam@1352	3093
adam@1352	3094 if (dot) {
adam@1352	3095 *dot = 0;
adam@1352	3096 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	3097 *dot = '.';
adam@1410	3098 char usec[] = "000000";
adam@1410	3099 int len = strlen(dot+1);
adam@1410	3100 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	3101 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	3102 return r;
adam@1352	3103 }
adam@1352	3104 else {
adam@1352	3105 *dot = '.';
adam@1444	3106 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3107 }
adam@1352	3108 }
adam@1352	3109 else {
adam@1352	3110 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3111 uw_Basis_time r = { mktime(&stm) };
adam@1365	3112 return r;
adam@1352	3113 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3114 uw_Basis_time r = { mktime(&stm) };
adam@1365	3115 return r;
adam@1352	3116 } else
adam@1444	3117 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3118 }
adam@1352	3119 }
adam@1352	3120
adamc@436	3121 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	3122 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	3123 struct tm stm = {};
adam@1392	3124 stm.tm_isdst = -1;
adamc@436	3125
adamc@438	3126 if (dot) {
adamc@438	3127 *dot = 0;
adamc@438	3128 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	3129 *dot = '.';
adam@1365	3130 {
adam@1365	3131 uw_Basis_time r = { mktime(&stm) };
adam@1365	3132 return r;
adam@1365	3133 }
adamc@438	3134 }
adamc@438	3135 else {
adamc@438	3136 *dot = '.';
adam@1444	3137 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3138 }
adamc@438	3139 }
adamc@438	3140 else {
adam@2072	3141 if (strptime(s, ctx->app->time_format, &stm) == end) {
adam@2072	3142 uw_Basis_time r = { mktime(&stm) };
adam@2072	3143 return r;
adam@2072	3144 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3145 uw_Basis_time r = { mktime(&stm) };
adam@1365	3146 return r;
adam@1365	3147 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3148 uw_Basis_time r = { mktime(&stm) };
adam@1365	3149 return r;
adam@1632	3150 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3151 uw_Basis_time r = { mktime(&stm) };
adam@1632	3152 return r;
adam@1365	3153 } else
adam@1444	3154 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3155 }
adamc@436	3156 }
adamc@457	3157
adam@1352	3158 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3159 char *end = strchr(s, 0);
adamc@939	3160 struct tm stm = {};
adam@1392	3161 stm.tm_isdst = -1;
adamc@939	3162
adam@1365	3163 if (strptime(s, fmt, &stm) == end) {
adam@1365	3164 uw_Basis_time r = { mktime(&stm) };
adam@1365	3165 return r;
adam@1365	3166 } else
adam@1444	3167 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3168 }
adamc@939	3169
adamc@742	3170 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3171 char *r = ctx->heap.front;
adamc@742	3172 uw_Basis_blob b = {len, r};
adamc@742	3173
adamc@742	3174 uw_check_heap(ctx, len);
adamc@742	3175
adam@1992	3176 if (s[0] == '\\' && s[1] == 'x') {
adam@1992	3177 s += 2;
adam@1992	3178
adam@1992	3179 while (*s) {
adam@1992	3180 int n;
adam@1992	3181 sscanf(s, "%02x", &n);
adam@1992	3182 *r++ = n;
adam@1992	3183 s += 2;
adam@1992	3184 }
adam@1992	3185 } else {
adam@1992	3186 while (*s) {
adam@1992	3187 if (s[0] == '\\') {
adam@1992	3188 if (s[1] == '\\') {
adam@1992	3189 *r++ = '\\';
adam@1992	3190 s += 2;
adam@1992	3191 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adam@1992	3192 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adam@1992	3193 s += 4;
adam@1992	3194 }
adam@1992	3195 else {
adam@1992	3196 *r++ = '\\';
adam@1992	3197 ++s;
adam@1992	3198 }
adam@1992	3199 } else {
adam@1992	3200 *r++ = s[0];
adamc@742	3201 ++s;
adamc@742	3202 }
adamc@742	3203 }
adamc@742	3204 }
adamc@742	3205
adamc@742	3206 b.size = r - ctx->heap.front;
adamc@742	3207 ctx->heap.front = r;
adam@1992	3208
adamc@742	3209 return b;
adamc@742	3210 }
adamc@742	3211
adam@1402	3212 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3213
adamc@463	3214 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3215 int len = strlen(c);
adamc@854	3216 char *p = ctx->outHeaders.start;
adamc@474	3217
adamc@1134	3218 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3219 char *p2;
adamc@474	3220 p += 13;
adamc@474	3221 p2 = strchr(p, '=');
adamc@474	3222
adamc@474	3223 if (p2) {
adamc@474	3224 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3225
adamc@474	3226 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3227 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3228 return NULL;
adamc@1052	3229 else {
adamc@1052	3230 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3231 memcpy(ret, p2+1, sz);
adamc@1052	3232 ret[sz] = 0;
adamc@1052	3233 return ret;
adamc@1052	3234 }
adamc@474	3235 }
adamc@474	3236 }
adamc@474	3237 }
adamc@463	3238
adamc@1134	3239 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3240 char *p2;
adamc@1051	3241
adamc@854	3242 while (1) {
adamc@1051	3243 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3244 if ((p2 = strchr(p, ';'))) {
adamc@1051	3245 size_t n = p2 - (p + len);
adamc@1051	3246 char *r = uw_malloc(ctx, n);
adamc@1051	3247 memcpy(r, p + 1 + len, n-1);
adamc@1051	3248 r[n-1] = 0;
adamc@1051	3249 return r;
adamc@1051	3250 } else
adamc@1051	3251 return p + 1 + len;
adamc@1134	3252 } else if ((p = strchr(p, ';')))
adamc@854	3253 p += 2;
adamc@463	3254 else
adamc@463	3255 return NULL;
adamc@463	3256 }
adamc@463	3257 }
adamc@792	3258
adamc@792	3259 return NULL;
adamc@457	3260 }
adamc@462	3261
adam@1877	3262 static void set_cookie(uw_context ctx) {
adam@1877	3263 if (ctx->usedSig)
adam@1877	3264 ctx->needsResig = 1;
adam@1877	3265 }
adam@1877	3266
adamc@1050	3267 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	3268 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3269 uw_write_header(ctx, c);
adamc@462	3270 uw_write_header(ctx, "=");
adamc@462	3271 uw_write_header(ctx, v);
adamc@466	3272 uw_write_header(ctx, "; path=");
adamc@466	3273 uw_write_header(ctx, prefix);
adamc@1050	3274 if (expires) {
adamc@1050	3275 char formatted[30];
adam@1392	3276 struct tm tm = {};
adam@1392	3277 tm.tm_isdst = -1;
adamc@1050	3278
adam@1365	3279 gmtime_r(&expires->seconds, &tm);
adamc@1050	3280
adamc@1050	3281 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3282
adamc@1050	3283 uw_write_header(ctx, "; expires=");
adamc@1050	3284 uw_write_header(ctx, formatted);
adamc@1050	3285 }
adamc@1050	3286 if (secure)
adamc@1050	3287 uw_write_header(ctx, "; secure");
adamc@462	3288 uw_write_header(ctx, "\r\n");
adam@1877	3289 set_cookie(ctx);
adamc@462	3290
adamc@462	3291 return uw_unit_v;
adamc@462	3292 }
adamc@667	3293
adamc@1050	3294 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3295 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3296 uw_write_header(ctx, c);
adamc@1050	3297 uw_write_header(ctx, "=; path=");
adamc@1050	3298 uw_write_header(ctx, prefix);
adamc@1052	3299 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3300 set_cookie(ctx);
adamc@1050	3301
adamc@1050	3302 return uw_unit_v;
adamc@1050	3303 }
adamc@1050	3304
adamc@1113	3305 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3306
adamc@682	3307 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3308 unsigned i;
adamc@682	3309 delta *d;
adamc@671	3310
adamc@682	3311 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3312 if (ctx->deltas[i].client == client)
adamc@682	3313 return &ctx->deltas[i];
adamc@671	3314
adamc@682	3315 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3316 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3317 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3318
adamc@682	3319 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3320 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3321 }
adamc@671	3322
adamc@682	3323 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3324 d->client = client;
adam@1369	3325 uw_buffer_reset(&d->msgs);
adamc@682	3326 return d;
adamc@671	3327 }
adamc@671	3328
adamc@668	3329 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3330 if (ctx->client == NULL)
adamc@682	3331 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3332
adamc@682	3333 return new_channel(ctx->client);
adamc@668	3334 }
adamc@668	3335
adamc@668	3336 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3337 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3338 size_t len;
adamc@682	3339 int preLen;
adamc@682	3340 char pre[INTS_MAX + 2];
adamc@668	3341
adamc@682	3342 len = strlen(msg);
adamc@682	3343
adamc@682	3344 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3345
adam@1369	3346 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3347 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3348 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3349
adamc@671	3350 return uw_unit_v;
adamc@668	3351 }
adamc@671	3352
adam@1327	3353 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3354 int i;
adamc@1131	3355 cleanup *cl;
adamc@1131	3356
adamc@1131	3357 if (ctx->client)
adamc@1131	3358 release_client(ctx->client);
adamc@1131	3359
adamc@1131	3360 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3361 cl->func(cl->arg);
adamc@1131	3362
adamc@1131	3363 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3364
adamc@1131	3365 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3366 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3367 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3368
adamc@1131	3369 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3370 if (ctx->transactionals[i].free)
adam@1327	3371 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3372
adam@1941	3373 if (ctx->app && ctx->transaction_started) {
adam@1941	3374 ctx->transaction_started = 0;
adam@1941	3375 return ctx->app->db_rollback(ctx);
adam@1941	3376 } else
adam@1941	3377 return 0;
adamc@1131	3378 }
adamc@1131	3379
adam@1956	3380 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	3381 const char uw_begin_html5[] = "<!DOCTYPE html><html>";
adam@1728	3382
adam@1877	3383 extern int uw_hash_blocksize;
adam@1877	3384
adam@1877	3385 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3386
adam@1877	3387 static char find_sig(char haystack) {
adam@1877	3388 int i;
adam@1877	3389 char *s = strstr(haystack, sig_intro);
adam@1877	3390
adam@1877	3391 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3392 return NULL;
phurst@1981	3393
adam@1877	3394 s += sizeof sig_intro - 1;
adam@1877	3395
adam@1877	3396 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3397 if (!isxdigit((int)s[i]))
adam@1877	3398 return NULL;
adam@1877	3399
adam@1877	3400 if (s[i] != '"')
adam@1877	3401 return NULL;
adam@1877	3402
adam@1877	3403 return s;
adam@1877	3404 }
adam@1877	3405
adam@2033	3406 static pthread_mutex_t message_send_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2033	3407
adam@1938	3408 int uw_commit(uw_context ctx) {
adamc@1104	3409 int i;
adam@1877	3410 char *sig;
adamc@1104	3411
adamc@1131	3412 if (uw_has_error(ctx)) {
adam@1327	3413 uw_rollback(ctx, 0);
adam@1938	3414 return 0;
adamc@1131	3415 }
adamc@1131	3416
adamc@1104	3417 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3418 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3419 if (ctx->transactionals[i].commit) {
adamc@1083	3420 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3421 if (uw_has_error(ctx)) {
adam@1327	3422 uw_rollback(ctx, 0);
adam@1938	3423 return 0;
adamc@1131	3424 }
adamc@1131	3425 }
adamc@771	3426
adam@2033	3427 // Here's an important lock to provide the abstraction that all messages from one transaction are sent as an atomic unit.
adam@2033	3428 if (ctx->used_deltas > 0)
adam@2033	3429 pthread_mutex_lock(&message_send_mutex);
adam@2033	3430
adam@2000	3431 if (ctx->transaction_started) {
adam@2000	3432 int code = ctx->app->db_commit(ctx);
adam@2000	3433
adam@2000	3434 if (code) {
adam@2033	3435 if (ctx->used_deltas > 0)
adam@2033	3436 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3437
adam@2000	3438 if (ctx->client)
adam@2000	3439 release_client(ctx->client);
adam@2000	3440
adam@2000	3441 if (code == -1) {
adam@2000	3442 // This case is for a serialization failure, which is not really an "error."
adam@2000	3443 // The transaction will restart, so we should rollback any transactionals
adam@2000	3444 // that triggered above.
adam@2000	3445
adam@2000	3446 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3447 if (ctx->transactionals[i].rollback != NULL)
adam@2000	3448 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2000	3449
adam@2000	3450 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3451 if (ctx->transactionals[i].free)
adam@2000	3452 ctx->transactionals[i].free(ctx->transactionals[i].data, 1);
adam@2000	3453
grrwlf@2030	3454 return 1;
adam@2000	3455 }
adam@2000	3456
adam@2000	3457 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3458 if (ctx->transactionals[i].free)
adam@2000	3459 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3460
adam@2000	3461 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@2000	3462 return 0;
adam@2000	3463 }
adam@2000	3464 }
adam@2000	3465
adamc@1104	3466 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3467 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3468 if (ctx->transactionals[i].commit) {
adamc@1083	3469 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3470 if (uw_has_error(ctx)) {
adam@2033	3471 if (ctx->used_deltas > 0)
adam@2033	3472 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3473
adam@2033	3474 if (ctx->client)
adam@2033	3475 release_client(ctx->client);
adam@2033	3476
adam@2033	3477 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3478 if (ctx->transactionals[i].rollback != NULL)
adam@2033	3479 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2033	3480
adam@2033	3481 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3482 if (ctx->transactionals[i].free)
adam@2033	3483 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3484
adam@1938	3485 return 0;
adamc@1131	3486 }
adamc@1131	3487 }
adamc@1131	3488
adamc@682	3489 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3490 delta *d = &ctx->deltas[i];
adamc@682	3491 client *c = find_client(d->client);
adamc@682	3492
adam@1551	3493 assert (c != NULL);
adam@1551	3494 assert(c->mode == USED);
adamc@682	3495
adam@1447	3496 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3497 }
adamc@682	3498
adam@2033	3499 if (ctx->used_deltas > 0)
adam@2033	3500 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3501
adamc@682	3502 if (ctx->client)
adamc@685	3503 release_client(ctx->client);
adamc@771	3504
adamc@1104	3505 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3506 if (ctx->transactionals[i].free)
adam@1327	3507 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3508
vshabanoff@1726	3509 uw_check(ctx, 1);
vshabanoff@1726	3510 *ctx->page.front = 0;
adam@1413	3511
adam@1956	3512 if (!ctx->returning_indirectly
adam@1956	3513 && (ctx->app->is_html5
adam@1956	3514 ? !strncmp(ctx->page.start, uw_begin_html5, sizeof uw_begin_html5 - 1)
adam@1956	3515 : !strncmp(ctx->page.start, uw_begin_xhtml, sizeof uw_begin_xhtml - 1))) {
adam@1728	3516 char *s;
adam@1728	3517
adam@1728	3518 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1956	3519 s = ctx->page.start + (ctx->app->is_html5 ? sizeof uw_begin_html5 - 1 : sizeof uw_begin_xhtml - 1);
adam@1728	3520 s = strchr(s, '<');
adam@1728	3521 if (s == NULL) {
adam@1728	3522 // Weird. Document has no tags!
adam@1728	3523
adam@1728	3524 uw_write(ctx, "<head></head><body></body>");
adam@1728	3525 uw_check(ctx, 1);
adam@1728	3526 *ctx->page.front = 0;
adam@1728	3527 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3528 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3529
adam@1729	3530 // Any freeform JavaScript to include?
adam@1729	3531 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3532 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3533 size_t lenP = lenH + 40 + len;
adam@1729	3534 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3535
adam@1729	3536 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3537 start += ctx->page.start - oldPage;
adam@1729	3538 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3539 ctx->page.front += lenP;
adam@1729	3540 memcpy(start, ctx->script_header, lenH);
adam@1729	3541 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3542 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3543 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3544 } else {
adam@1729	3545 size_t lenH = strlen(ctx->script_header);
adam@1729	3546 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3547
adam@1729	3548 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3549 start += ctx->page.start - oldPage;
adam@1729	3550 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3551 ctx->page.front += lenH;
adam@1729	3552 memcpy(start, ctx->script_header, lenH);
adam@1729	3553 }
adam@1728	3554 } else {
adam@1728	3555 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3556
adam@1729	3557 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3558 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3559 size_t lenP = lenH + 53 + len;
adam@1729	3560 char start = s, oldPage = ctx->page.start;
adam@1729	3561
adam@1729	3562 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3563 start += ctx->page.start - oldPage;
adam@1729	3564 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3565 ctx->page.front += lenP;
adam@1729	3566 memcpy(start, "<head>", 6);
adam@1729	3567 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3568 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3569 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3570 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3571 } else {
adam@1729	3572 size_t lenH = strlen(ctx->script_header);
adam@1729	3573 size_t lenP = lenH + 13;
adam@1729	3574 char start = s, oldPage = ctx->page.start;
adam@1729	3575
adam@1729	3576 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3577 start += ctx->page.start - oldPage;
adam@1729	3578 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3579 ctx->page.front += lenP;
adam@1729	3580 memcpy(start, "<head>", 6);
adam@1729	3581 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3582 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3583 }
adamc@916	3584 }
adamc@916	3585 }
adam@1877	3586
adam@1877	3587 if (ctx->needsResig) {
adam@1877	3588 sig = find_sig(ctx->page.start);
adam@1877	3589 if (sig) {
adam@1877	3590 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3591
adam@1877	3592 do {
adam@1877	3593 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3594 sig = find_sig(sig);
adam@1877	3595 } while (sig);
adam@1877	3596 }
adam@1877	3597 }
adam@1938	3598
adam@1938	3599 return 0;
adamc@671	3600 }
adamc@671	3601
adamc@683	3602
adamc@1113	3603 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3604
adam@2001	3605 int uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3606 uw_callback_with_retry free) {
adamc@771	3607 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3608 if (ctx->used_transactionals+1 > uw_transactionals_max)
adam@2001	3609 // Exceeded limit on number of transactionals.
adam@2001	3610 return -1;
adamc@1084	3611 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3612 ++ctx->n_transactionals;
adamc@771	3613 }
adamc@771	3614
adamc@771	3615 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3616 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3617 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3618 ctx->transactionals[ctx->used_transactionals++].free = free;
adam@2001	3619
adam@2001	3620 return 0;
adamc@771	3621 }
adamc@771	3622
adamc@683	3623
adamc@683	3624 // "Garbage collection"
adamc@683	3625
adamc@1121	3626 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3627 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3628
adamc@1121	3629 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3630 int r = setjmp(ctx->jmp_buf);
adamc@683	3631
adamc@1121	3632 if (r == 0)
adamc@1121	3633 uw_do_expunge(ctx, cli, data);
adamc@1121	3634 else
adamc@1121	3635 ctx->app->db_rollback(ctx);
adamc@1121	3636
adamc@1121	3637 uw_post_expunge(ctx, data);
adamc@683	3638
adamc@683	3639 return r;
adamc@683	3640 }
adamc@683	3641
adamc@683	3642 void uw_prune_clients(uw_context ctx) {
adamc@683	3643 client c, next, *prev = NULL;
adamc@683	3644 time_t cutoff;
adamc@683	3645
adamc@1094	3646 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3647
adamc@683	3648 pthread_mutex_lock(&clients_mutex);
adam@1707	3649 pruning_thread = pthread_self();
adam@1707	3650 pruning_thread_initialized = 1;
adamc@683	3651
adamc@683	3652 for (c = clients_used; c; c = next) {
adamc@683	3653 next = c->next;
adamc@683	3654 pthread_mutex_lock(&c->lock);
adamc@685	3655 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3656 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3657 if (prev)
adamc@683	3658 prev->next = next;
adamc@683	3659 else
adamc@683	3660 clients_used = next;
adamc@683	3661 while (fk == UNLIMITED_RETRY) {
adam@1941	3662 uw_reset(ctx);
adamc@1121	3663 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3664 if (fk == UNLIMITED_RETRY)
adamc@684	3665 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3666 }
adamc@684	3667 if (fk == SUCCESS)
adamc@684	3668 free_client(c);
adamc@1121	3669 else
adamc@856	3670 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3671 }
adamc@683	3672 else
adamc@683	3673 prev = c;
adamc@683	3674 pthread_mutex_unlock(&c->lock);
adamc@683	3675 }
adamc@683	3676
adamc@683	3677 pthread_mutex_unlock(&clients_mutex);
adamc@683	3678 }
adamc@687	3679
adamc@687	3680 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3681 int r = setjmp(ctx->jmp_buf);
adamc@687	3682
adamc@687	3683 if (r == 0) {
adam@1936	3684 uw_ensure_transaction(ctx);
adamc@1094	3685 ctx->app->initializer(ctx);
adam@2296	3686 if (uw_commit(ctx))
adamc@687	3687 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3688 }
adamc@687	3689
adamc@687	3690 return r;
adamc@687	3691 }
adamc@717	3692
adamc@1065	3693 static int url_bad(uw_Basis_string s) {
adamc@1065	3694 for (; *s; ++s)
adamc@1153	3695 if (!isgraph((int)*s))
adamc@1065	3696 return 1;
adamc@1065	3697
adamc@1065	3698 return 0;
adamc@1065	3699 }
adamc@1065	3700
adamc@717	3701 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3702 if (url_bad(s))
adamc@1065	3703 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3704 if (ctx->app->check_url(s))
adamc@770	3705 return s;
adamc@770	3706 else
adamc@770	3707 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3708 }
adamc@734	3709
adamc@770	3710 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3711 if (url_bad(s))
adamc@1065	3712 return NULL;
adamc@1094	3713 if (ctx->app->check_url(s))
adamc@770	3714 return s;
adamc@770	3715 else
adamc@770	3716 return NULL;
adamc@770	3717 }
adamc@770	3718
adam@1465	3719 static int mime_format(const char *s) {
adamc@770	3720 for (; *s; ++s)
grrwlf@2024	3721 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.' && *s != '+')
adamc@770	3722 return 0;
adamc@770	3723
adamc@770	3724 return 1;
adamc@770	3725 }
adamc@770	3726
adamc@741	3727 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3728 if (!mime_format(s))
adamc@770	3729 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3730
adamc@1094	3731 if (ctx->app->check_mime(s))
adamc@770	3732 return s;
adamc@770	3733 else
adamc@770	3734 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3735 }
adamc@770	3736
adamc@770	3737 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3738 if (!mime_format(s))
adamc@770	3739 return NULL;
adamc@770	3740
adamc@1094	3741 if (ctx->app->check_mime(s))
adamc@770	3742 return s;
adamc@770	3743 else
adamc@770	3744 return NULL;
adamc@741	3745 }
adamc@741	3746
adam@1465	3747 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3748 if (!mime_format(s))
adam@1465	3749 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3750
adam@1465	3751 if (ctx->app->check_requestHeader(s))
adam@1465	3752 return s;
adam@1465	3753 else
adam@1465	3754 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3755 }
adam@1465	3756
adam@1465	3757 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3758 if (!mime_format(s))
adam@1465	3759 return NULL;
adam@1465	3760
adam@1465	3761 if (ctx->app->check_requestHeader(s))
adam@1465	3762 return s;
adam@1465	3763 else
adam@1465	3764 return NULL;
adam@1465	3765 }
adam@1465	3766
adam@1465	3767 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3768 if (!mime_format(s))
adam@1465	3769 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3770
adam@1465	3771 if (ctx->app->check_responseHeader(s))
adam@1465	3772 return s;
adam@1465	3773 else
adam@1465	3774 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3775 }
adam@1465	3776
adam@1799	3777 static int envVar_format(const char *s) {
adam@1799	3778 for (; *s; ++s)
adam@1799	3779 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3780 return 0;
adam@1799	3781
adam@1799	3782 return 1;
adam@1799	3783 }
adam@1799	3784
adam@1465	3785 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3786 if (!envVar_format(s))
adam@1465	3787 return NULL;
adam@1465	3788
adam@1465	3789 if (ctx->app->check_responseHeader(s))
adam@1465	3790 return s;
adam@1465	3791 else
adam@1465	3792 return NULL;
adam@1465	3793 }
adam@1465	3794
adam@1799	3795 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3796 if (!envVar_format(s))
adam@1799	3797 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3798
adam@1799	3799 if (ctx->app->check_envVar(s))
adam@1799	3800 return s;
adam@1799	3801 else
adam@1799	3802 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3803 }
adam@1799	3804
adam@1799	3805 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3806 if (!mime_format(s))
adam@1799	3807 return NULL;
adam@1799	3808
adam@1799	3809 if (ctx->app->check_envVar(s))
adam@1799	3810 return s;
adam@1799	3811 else
adam@1799	3812 return NULL;
adam@1799	3813 }
adam@1799	3814
adam@1465	3815 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3816 return uw_Basis_requestHeader(ctx, name);
adam@1465	3817 }
adam@1465	3818
adam@1465	3819 static int mime_value_format(const char *s) {
adam@1465	3820 for (; *s; ++s)
adam@1465	3821 if (s == '\r' \|\| s == '\n')
adam@1465	3822 return 0;
adam@1465	3823
adam@1465	3824 return 1;
adam@1465	3825 }
adam@1465	3826
adam@1465	3827 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3828 if (!mime_value_format(value))
adam@1465	3829 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3830
adam@1465	3831 uw_write_header(ctx, name);
adam@1465	3832 uw_write_header(ctx, ": ");
adam@1465	3833 uw_write_header(ctx, value);
adam@1465	3834 uw_write_header(ctx, "\r\n");
adam@1465	3835
adam@1465	3836 return uw_unit_v;
adam@1465	3837 }
adam@1465	3838
adam@1799	3839 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1993	3840 if (ctx->get_env)
adam@1993	3841 return ctx->get_env(ctx->get_env_data, name);
adam@1993	3842 else
adam@1994	3843 return getenv(name);
adam@1799	3844 }
adam@1799	3845
adamc@734	3846 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3847 return s ? s : "";
adamc@734	3848 }
adamc@734	3849
adamc@734	3850 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3851 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3852 int i;
phurst@1981	3853
adamc@734	3854 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3855 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3856
adamc@734	3857 return r;
adamc@734	3858 }
adamc@734	3859
adam@1512	3860 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3861 * optimizations that would enable timing attacks. See:
adam@1512	3862 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3863 */
adam@1512	3864 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3865 int i, x = 0, len1 = strlen(s1);
adam@1512	3866
adam@1512	3867 if (len1 != strlen(s2)) return 0;
adam@1512	3868
adam@1512	3869 for (i = 0; i < len1; ++i) {
adam@1512	3870 __asm__ __volatile__ ("");
adam@1512	3871 x \|= s1[i] ^ s2[i];
adam@1512	3872 }
adam@1512	3873
adam@1512	3874 return x == 0;
adam@1512	3875 }
adam@1512	3876
adamc@734	3877 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3878 ctx->usedSig = 1;
adamc@1094	3879 return ctx->app->cookie_sig(ctx);
adamc@734	3880 }
adamc@737	3881
adamc@737	3882 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3883 return f.name;
adamc@737	3884 }
adamc@737	3885
adamc@740	3886 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3887 return f.type;
adamc@740	3888 }
adamc@740	3889
adamc@745	3890 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3891 return b.size;
adamc@745	3892 }
adamc@745	3893
adamc@1119	3894 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3895 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3896
adamc@1119	3897 return b;
adamc@1119	3898 }
adamc@1119	3899
adamc@737	3900 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3901 return f.data;
adamc@737	3902 }
adamc@741	3903
adam@1347	3904 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3905 return pb.type;
adam@1347	3906 }
adam@1347	3907
adam@1347	3908 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3909 return pb.data;
adam@1347	3910 }
adam@1347	3911
adam@1471	3912 static char *old_headers(uw_context ctx) {
adam@1471	3913 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3914 return NULL;
adam@1471	3915 else {
adam@1471	3916 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3917
adam@1471	3918 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3919 return NULL;
adam@1471	3920 else {
adam@1471	3921 s = strchr(s+15, '\n');
adam@1471	3922 if (s == NULL)
adam@1471	3923 return NULL;
adam@1471	3924 else
adam@1471	3925 return uw_strdup(ctx, s+1);
adam@1471	3926 }
adam@1471	3927 }
adam@1471	3928 }
adam@1471	3929
adamc@741	3930 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3931 cleanup *cl;
adamc@741	3932 int len;
adam@1471	3933 char *oldh;
adamc@741	3934
adam@1451	3935 if (!ctx->allowed_to_return_indirectly)
adam@1451	3936 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3937
adamc@1065	3938 ctx->returning_indirectly = 1;
adam@1471	3939 oldh = old_headers(ctx);
adam@1369	3940 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3941 uw_buffer_reset(&ctx->page);
adamc@741	3942
adamc@856	3943 uw_write_header(ctx, on_success);
adamc@856	3944 uw_write_header(ctx, "Content-Type: ");
adamc@741	3945 uw_write_header(ctx, mimeType);
adam@1934	3946 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369	3947 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3948 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3949 ctx->outHeaders.front += len;
adamc@1066	3950 uw_write_header(ctx, "\r\n");
adam@1471	3951 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3952
adam@1369	3953 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3954
adamc@741	3955 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3956 cl->func(cl->arg);
adamc@741	3957
adamc@741	3958 ctx->cleanup_front = ctx->cleanup;
adamc@741	3959
adamc@1065	3960 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3961 }
adamc@1065	3962
adam@2046	3963 void uw_replace_page(uw_context ctx, const char *data, size_t size) {
adam@2046	3964 uw_buffer_reset(&ctx->page);
adam@2046	3965 ctx_uw_buffer_append(ctx, "page", &ctx->page, data, size);
adam@2046	3966 }
adam@2046	3967
adam@1932	3968 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932	3969 cleanup *cl;
adam@1932	3970 int len;
adam@1932	3971 char *oldh;
adam@1932	3972
adam@1932	3973 if (!ctx->allowed_to_return_indirectly)
adam@1932	3974 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932	3975
adam@1932	3976 ctx->returning_indirectly = 1;
adam@1932	3977 oldh = old_headers(ctx);
adam@1932	3978 uw_buffer_reset(&ctx->outHeaders);
adam@1932	3979
adam@1932	3980 uw_write_header(ctx, on_success);
adam@1932	3981 uw_write_header(ctx, "Content-Type: ");
adam@1932	3982 uw_write_header(ctx, mimeType);
adam@1934	3983 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932	3984 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932	3985 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932	3986 ctx->outHeaders.front += len;
adam@1932	3987 uw_write_header(ctx, "\r\n");
adam@1932	3988 if (oldh) uw_write_header(ctx, oldh);
adam@1932	3989
adam@1932	3990 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932	3991 cl->func(cl->arg);
adam@1932	3992
adam@1932	3993 ctx->cleanup_front = ctx->cleanup;
adam@1932	3994
adam@1932	3995 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932	3996 }
adam@1932	3997
adamc@1065	3998 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3999 cleanup *cl;
adamc@1066	4000 char *s;
adam@1471	4001 char *oldh;
adamc@1065	4002
adam@1451	4003 if (!ctx->allowed_to_return_indirectly)
adam@1451	4004 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	4005
adamc@1065	4006 ctx->returning_indirectly = 1;
adam@1471	4007 oldh = old_headers(ctx);
adam@1369	4008 uw_buffer_reset(&ctx->page);
adam@1369	4009 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	4010 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	4011 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	4012 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	4013
adam@1409	4014 if (on_success[0])
adam@1409	4015 uw_write_header(ctx, on_redirect);
adam@1409	4016 else
adam@1409	4017 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	4018 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	4019 if (s) {
adamc@1066	4020 char *s2;
adam@1409	4021 if (s[0] == '\n') ++s;
adam@1409	4022 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	4023 *s2 = 0;
adamc@1066	4024 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	4025 uw_write_header(ctx, s);
adamc@1066	4026 uw_write_header(ctx, "\n");
adamc@1066	4027 }
adamc@1066	4028 }
adamc@1066	4029 }
adamc@1066	4030
adamc@1065	4031 uw_write_header(ctx, "Location: ");
adamc@1065	4032 uw_write_header(ctx, url);
adamc@1065	4033 uw_write_header(ctx, "\r\n\r\n");
adam@1471	4034 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	4035
adamc@1065	4036 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	4037 cl->func(cl->arg);
adamc@1065	4038
adamc@1065	4039 ctx->cleanup_front = ctx->cleanup;
adamc@1065	4040
adamc@1065	4041 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	4042 }
adamc@874	4043
adamc@874	4044 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	4045 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	4046
adamc@874	4047 for (; *s; ++s) {
adamc@874	4048 if (s[0] == '\'') {
adamc@874	4049 *r++ = '\'';
adamc@874	4050 for (++s; *s; ++s) {
adamc@874	4051 if (s[0] == '\'') {
adamc@874	4052 *r++ = '\'';
adamc@874	4053 break;
adamc@874	4054 } else if (s[0] == '\\') {
adam@1467	4055 *r++ = '\\';
adam@1467	4056 *r++ = s[1];
adam@1467	4057 ++s;
adamc@874	4058 } else
adamc@874	4059 *r++ = s[0];
adamc@874	4060 }
adamc@874	4061 if (*s == 0) break;
adam@1467	4062 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	4063 s += 3;
adamc@874	4064 else
adamc@874	4065 *r++ = s[0];
adamc@874	4066 }
adamc@874	4067
adam@1467	4068 *r = 0;
adam@1467	4069 return ret;
adamc@874	4070 }
adamc@874	4071
adamc@922	4072 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	4073 va_list ap;
adamc@922	4074 size_t len = 1;
adamc@922	4075 char s, r, *s2;
phurst@1981	4076
adamc@922	4077 va_start(ap, ctx);
adamc@922	4078 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4079 len += strlen(s);
adamc@922	4080 va_end(ap);
adamc@922	4081
adamc@922	4082 r = uw_malloc(ctx, len);
adamc@922	4083 va_start(ap, ctx);
adamc@922	4084 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4085 while (*s)
adamc@922	4086 s2++ = s++;
adamc@922	4087 va_end(ap);
adamc@922	4088 *s2 = 0;
adamc@922	4089
adamc@922	4090 return r;
adamc@922	4091 }
adamc@1006	4092
adam@1365	4093 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	4094
adamc@1006	4095 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	4096 uw_Basis_time r = { time(NULL) };
adam@1365	4097 return r;
adamc@1006	4098 }
adamc@1061	4099
adam@1369	4100 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	4101 tm.seconds += n;
adam@1365	4102 return tm;
adamc@1138	4103 }
adamc@1138	4104
adam@1514	4105 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	4106 return difftime(tm2.seconds, tm1.seconds);
adam@1514	4107 }
adam@1514	4108
adam@1685	4109 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	4110 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	4111 }
adam@1685	4112
adam@2187	4113 uw_Basis_time uw_Basis_fromMilliseconds(uw_context ctx, uw_Basis_int n) {
adam@2187	4114 uw_Basis_time tm = {n / 1000, n % 1000 * 1000};
adam@2187	4115 return tm;
adam@2187	4116 }
adam@2187	4117
adam@1685	4118 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	4119 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	4120 }
adam@1685	4121
adam@1514	4122 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	4123 return tm.seconds;
adam@1514	4124 }
adam@1514	4125
phurst@1971	4126 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	4127 struct tm tm = { .tm_year = year - 1900, .tm_mon = month, .tm_mday = day,
adam@2015	4128 .tm_hour = hour, .tm_min = minute, .tm_sec = second,
adam@2015	4129 .tm_isdst = -1 };
phurst@1984	4130 uw_Basis_time r = { timelocal(&tm) };
phurst@1971	4131 return r;
phurst@1971	4132 }
phurst@1971	4133
phurst@1971	4134 uw_Basis_int uw_Basis_datetimeYear(uw_context ctx, uw_Basis_time time) {
phurst@1971	4135 struct tm tm;
phurst@1982	4136 localtime_r(&time.seconds, &tm);
phurst@1971	4137 return tm.tm_year + 1900;
phurst@1971	4138 }
phurst@1971	4139
phurst@1971	4140 uw_Basis_int uw_Basis_datetimeMonth(uw_context ctx, uw_Basis_time time) {
phurst@1971	4141 struct tm tm;
phurst@1982	4142 localtime_r(&time.seconds, &tm);
phurst@1971	4143 return tm.tm_mon;
phurst@1971	4144 }
phurst@1971	4145
phurst@1971	4146 uw_Basis_int uw_Basis_datetimeDay(uw_context ctx, uw_Basis_time time) {
phurst@1971	4147 struct tm tm;
phurst@1982	4148 localtime_r(&time.seconds, &tm);
phurst@1971	4149 return tm.tm_mday;
phurst@1971	4150 }
phurst@1971	4151
phurst@1971	4152 uw_Basis_int uw_Basis_datetimeHour(uw_context ctx, uw_Basis_time time) {
phurst@1971	4153 struct tm tm;
phurst@1982	4154 localtime_r(&time.seconds, &tm);
phurst@1971	4155 return tm.tm_hour;
phurst@1971	4156 }
phurst@1971	4157
phurst@1971	4158 uw_Basis_int uw_Basis_datetimeMinute(uw_context ctx, uw_Basis_time time) {
phurst@1971	4159 struct tm tm;
phurst@1982	4160 localtime_r(&time.seconds, &tm);
phurst@1971	4161 return tm.tm_min;
phurst@1971	4162 }
phurst@1971	4163
phurst@1971	4164 uw_Basis_int uw_Basis_datetimeSecond(uw_context ctx, uw_Basis_time time) {
phurst@1971	4165 struct tm tm;
phurst@1982	4166 localtime_r(&time.seconds, &tm);
phurst@1971	4167 return tm.tm_sec;
phurst@1971	4168 }
phurst@1971	4169
phurst@1973	4170 uw_Basis_int uw_Basis_datetimeDayOfWeek(uw_context ctx, uw_Basis_time time) {
phurst@1973	4171 struct tm tm;
phurst@1982	4172 localtime_r(&time.seconds, &tm);
phurst@1973	4173 return tm.tm_wday;
phurst@1973	4174 }
phurst@1971	4175
phurst@1971	4176
adamc@1061	4177 void uw_get_global(uw_context ctx, char name) {
adamc@1061	4178 int i;
adamc@1061	4179
adamc@1061	4180 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4181 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	4182 return ctx->globals[i].data;
adamc@1061	4183
adamc@1061	4184 return NULL;
adamc@1061	4185 }
adamc@1061	4186
adamc@1113	4187 size_t uw_globals_max = SIZE_MAX;
adamc@1113	4188
adamc@1061	4189 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	4190 int i;
adamc@1061	4191
adamc@1061	4192 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4193 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	4194 if (ctx->globals[i].free)
adamc@1061	4195 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	4196 ctx->globals[i].data = data;
adamc@1061	4197 ctx->globals[i].free = free;
adamc@1061	4198 return;
adamc@1061	4199 }
adamc@1089	4200
adamc@1113	4201 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	4202 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	4203
adamc@1061	4204 ++ctx->n_globals;
adamc@1061	4205 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	4206 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	4207 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	4208 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	4209 }
adamc@1061	4210
adamc@1061	4211 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	4212 return !!isalnum((int)c);
adamc@1061	4213 }
adamc@1061	4214
adamc@1061	4215 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	4216 return !!isalpha((int)c);
adamc@1061	4217 }
adamc@1061	4218
adamc@1061	4219 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	4220 return !!isblank((int)c);
adamc@1061	4221 }
adamc@1061	4222
adamc@1061	4223 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	4224 return !!iscntrl((int)c);
adamc@1061	4225 }
adamc@1061	4226
adamc@1061	4227 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4228 return !!isdigit((int)c);
adamc@1061	4229 }
adamc@1061	4230
adamc@1061	4231 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	4232 return !!isgraph((int)c);
adamc@1061	4233 }
adamc@1061	4234
adamc@1061	4235 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4236 return !!islower((int)c);
adamc@1061	4237 }
adamc@1061	4238
adamc@1061	4239 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	4240 return !!isprint((int)c);
adamc@1061	4241 }
adamc@1061	4242
adamc@1061	4243 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	4244 return !!ispunct((int)c);
adamc@1061	4245 }
adamc@1061	4246
adamc@1061	4247 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	4248 return !!isspace((int)c);
adamc@1061	4249 }
adamc@1063	4250
adamc@1061	4251 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4252 return !!isupper((int)c);
adamc@1061	4253 }
adamc@1061	4254
adamc@1061	4255 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4256 return !!isxdigit((int)c);
adamc@1061	4257 }
adamc@1061	4258
adamc@1061	4259 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4260 return tolower((int)c);
adamc@1061	4261 }
adamc@1061	4262
adamc@1061	4263 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4264 return toupper((int)c);
adamc@1061	4265 }
adamc@1066	4266
adamc@1128	4267 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	4268 return (unsigned char)c;
adamc@1128	4269 }
adamc@1128	4270
adamc@1128	4271 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	4272 return n;
adamc@1128	4273 }
adamc@1128	4274
adamc@1066	4275 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	4276 return ctx->current_url;
adamc@1066	4277 }
adamc@1066	4278
adamc@1066	4279 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	4280 ctx->current_url = s;
adamc@1066	4281 }
adamc@1114	4282
adamc@1114	4283 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	4284 ctx->deadline = n;
adamc@1114	4285 }
adamc@1114	4286
adamc@1114	4287 void uw_check_deadline(uw_context ctx) {
adamc@1114	4288 if (uw_time > ctx->deadline)
adamc@1114	4289 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	4290 }
adamc@1115	4291
adamc@1115	4292 size_t uw_database_max = SIZE_MAX;
adamc@1120	4293
adam@1389	4294 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@2143	4295 if (ctx->loggers->log_debug)
adam@2143	4296 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@2143	4297 else
adam@2143	4298 fprintf(stderr, "%s\n", s);
adam@1389	4299 return 0;
adam@1389	4300 }
adam@1389	4301
adamc@1120	4302 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
grrwlf@1997	4303 if (ctx->loggers->log_debug)
grrwlf@1997	4304 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@1334	4305 else
adam@1334	4306 fprintf(stderr, "%s\n", s);
adamc@1120	4307 return uw_unit_v;
adamc@1120	4308 }
adamc@1250	4309
adamc@1250	4310 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@2104	4311 int r = my_rand();
adam@2104	4312
adam@2104	4313 if (r >= 0)
adam@2104	4314 return r;
adam@1486	4315 else
adam@1486	4316 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	4317 }
adam@1347	4318
adam@1347	4319 void uw_noPostBody(uw_context ctx) {
adam@1347	4320 ctx->hasPostBody = 0;
adam@1347	4321 }
adam@1347	4322
adam@1347	4323 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	4324 ctx->hasPostBody = 1;
adam@1347	4325 ctx->postBody = pb;
adam@1347	4326 }
adam@1347	4327
adam@1347	4328 int uw_hasPostBody(uw_context ctx) {
adam@1347	4329 return ctx->hasPostBody;
adam@1347	4330 }
adam@1347	4331
adam@1386	4332 void uw_isPost(uw_context ctx) {
adam@1386	4333 ctx->isPost = 1;
adam@1386	4334 }
adam@1386	4335
adam@1386	4336 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4337 return ctx->isPost;
adam@1386	4338 }
adam@1386	4339
adam@1485	4340 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4341 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4342 }
adam@1485	4343
adam@1370	4344 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4345 ctx->queryString = s;
adam@1370	4346 }
adam@1370	4347
adam@1370	4348 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4349 return ctx->queryString;
adam@1370	4350 }
adam@1370	4351
adam@1347	4352 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4353 if (ctx->hasPostBody)
adam@1347	4354 return ctx->postBody;
adam@1347	4355 else
adam@1347	4356 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4357 }
adam@1349	4358
adam@1349	4359 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4360 int r = setjmp(ctx->jmp_buf);
adam@1349	4361
adam@1349	4362 if (r == 0) {
adam@1936	4363 uw_ensure_transaction(ctx);
adam@1418	4364
adam@1349	4365 callback(ctx);
adam@1349	4366 }
adam@1349	4367
adam@1349	4368 return r;
adam@1349	4369 }
adam@1360	4370
adam@1360	4371 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4372 char buf[14];
adam@1397	4373 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4374 }
adam@1365	4375
adam@1365	4376 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4377 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	4378 }
adam@1365	4379
adam@1365	4380 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@2034	4381 return !!(t1.seconds < t2.seconds \|\| (t1.seconds == t2.seconds && t1.microseconds < t2.microseconds));
adam@1365	4382 }
adam@1365	4383
adam@1365	4384 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4385 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4386 }
adam@1365	4387
adam@1372	4388 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4389 struct tm stm = {};
adam@1375	4390 char *end = strchr(s, 0);
adam@1449	4391 stm.tm_isdst = -1;
adam@1375	4392
adam@1632	4393 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4394 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4395
kkallio@1448	4396 r->seconds = timegm(&stm);
adam@1373	4397 r->microseconds = 0;
adam@1373	4398
adam@1373	4399 return r;
adam@1374	4400 }
adam@1374	4401 else
adam@1373	4402 return NULL;
adam@1372	4403 }
adam@1407	4404
adam@1407	4405 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4406 int r = setjmp(ctx->jmp_buf);
adam@1407	4407
adam@1407	4408 if (ctx->app->on_error) {
adam@1407	4409 if (r == 0) {
adam@1936	4410 uw_ensure_transaction(ctx);
adam@1407	4411
adam@1409	4412 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4413 if (on_success[0])
adam@1409	4414 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4415 else
adam@1409	4416 uw_write_header(ctx, "Status: ");
adam@1409	4417 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919	4418 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1956	4419 uw_write(ctx, ctx->app->is_html5 ? uw_begin_html5 : uw_begin_xhtml);
adam@1407	4420 ctx->app->on_error(ctx, msg);
adam@1407	4421 uw_write(ctx, "</html>");
adam@1407	4422 }
adam@1407	4423
adam@1407	4424 return r;
adam@1407	4425 } else
adam@1407	4426 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4427 }
adam@1451	4428
adam@1451	4429 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4430 ctx->allowed_to_return_indirectly = 1;
adam@1451	4431 }
adam@1483	4432
adam@1556	4433 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4434 int len;
adam@1703	4435 char *r;
adam@1703	4436
adam@1703	4437 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4438 r = ctx->heap.front;
adam@1703	4439 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4440 ctx->heap.front += len+1;
adam@1703	4441 return r;
adam@1556	4442 }
adam@1571	4443
adam@1571	4444 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4445 return n;
adam@1571	4446 }
adam@1571	4447
adam@1571	4448 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4449 return ceil(n);
adam@1571	4450 }
adam@1571	4451
adam@1571	4452 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4453 return trunc(n);
adam@1571	4454 }
adam@1571	4455
adam@1571	4456 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4457 return round(n);
adam@1571	4458 }
adam@1755	4459
adam@1755	4460 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755	4461 char *p;
adam@1755	4462
adam@1755	4463 for (p = s; *p; ++p) {
adam@1755	4464 char c = *p;
adam@1801	4465 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755	4466 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4467 }
adam@1755	4468
adam@1755	4469 return s;
adam@1755	4470 }
adam@1755	4471
adam@1755	4472 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4473 char *p;
adam@1755	4474
adam@1755	4475 for (p = s; *p; ++p) {
adam@1755	4476 char c = *p;
adam@1801	4477 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4478 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4479 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4480 }
adam@1755	4481
adam@1755	4482 return s;
adam@1755	4483 }
adam@1755	4484
adam@1755	4485 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4486 char *p;
adam@1755	4487
adam@1755	4488 if (!*s)
adam@1755	4489 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4490
adam@1801	4491 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4492 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4493
adam@1755	4494 for (p = s; *p; ++p) {
adam@1755	4495 char c = *p;
adam@1801	4496 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4497 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4498 }
adam@1755	4499
adam@1755	4500 return s;
adam@1755	4501 }
adam@1787	4502
adam@1787	4503 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4504 return f.name;
adam@1787	4505 }
adam@1787	4506
adam@1787	4507 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4508 return f.value;
adam@1787	4509 }
adam@1787	4510
adam@1787	4511 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4512 return f.remaining;
adam@1787	4513 }
adam@1787	4514
adam@1787	4515 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4516 char *unurl;
adam@1787	4517 uw_Basis_postField *f;
adam@1787	4518
adam@1788	4519 if (!ctx->hasPostBody)
adam@1788	4520 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4521
adam@1788	4522 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4523 return NULL;
adam@1787	4524
adam@1787	4525 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4526 unurl = s;
adam@1787	4527 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4528 s = strchr(s, 0);
adam@1788	4529 if (!s)
adam@1788	4530 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4531 ++s;
adam@1788	4532 unurl = s;
adam@1788	4533 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4534 s = strchr(s, 0);
adam@1788	4535 if (!s)
adam@1788	4536 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4537 f->remaining = s+1;
adam@1787	4538
adam@1787	4539 return f;
adam@1787	4540 }
adam@2008	4541
adam@2008	4542 uw_Basis_string uw_Basis_blessData(uw_context ctx, uw_Basis_string s) {
adam@2008	4543 char *p = s;
adam@2008	4544
adam@2008	4545 for (; *p; ++p)
adam@2008	4546 if (!isalnum(p) && p != '-' && *p != '_')
adam@2008	4547 uw_error(ctx, FATAL, "Illegal HTML5 data-* attribute: %s", s);
adam@2008	4548
adam@2008	4549 return s;
adam@2008	4550 }
adam@2073	4551
adam@2073	4552 int uw_remoteSock(uw_context ctx) {
adam@2073	4553 return ctx->remoteSock;
adam@2073	4554 }
adam@2073	4555
adam@2073	4556 void uw_set_remoteSock(uw_context ctx, int sock) {
adam@2073	4557 ctx->remoteSock = sock;
adam@2073	4558 }
ziv@2234	4559
ziv@2234	4560
ziv@2234	4561 // Sqlcache
ziv@2234	4562
ziv@2284	4563 typedef struct uw_Sqlcache_Entry {
ziv@2284	4564 char *key;
ziv@2284	4565 uw_Sqlcache_Value *value;
ziv@2284	4566 unsigned long timeInvalid;
ziv@2284	4567 UT_hash_handle hh;
ziv@2284	4568 } uw_Sqlcache_Entry;
ziv@2284	4569
ziv@2288	4570 static void uw_Sqlcache_freeValue(uw_Sqlcache_Value *value) {
ziv@2234	4571 if (value) {
ziv@2234	4572 free(value->result);
ziv@2234	4573 free(value->output);
ziv@2234	4574 free(value);
ziv@2234	4575 }
ziv@2234	4576 }
ziv@2234	4577
ziv@2288	4578 static void uw_Sqlcache_freeEntry(uw_Sqlcache_Entry* entry) {
ziv@2279	4579 if (entry) {
ziv@2279	4580 free(entry->key);
ziv@2279	4581 uw_Sqlcache_freeValue(entry->value);
ziv@2279	4582 free(entry);
ziv@2279	4583 }
ziv@2279	4584 }
ziv@2279	4585
ziv@2279	4586 // TODO: pick a number.
ziv@2288	4587 static unsigned int uw_Sqlcache_maxSize = 1234567890;
ziv@2288	4588
ziv@2288	4589 static void uw_Sqlcache_delete(uw_Sqlcache_Cache cache, uw_Sqlcache_Entry entry) {
ziv@2291	4590 if (entry) {
ziv@2291	4591 HASH_DEL(cache->table, entry);
ziv@2291	4592 uw_Sqlcache_freeEntry(entry);
ziv@2291	4593 }
ziv@2279	4594 }
ziv@2279	4595
ziv@2288	4596 static uw_Sqlcache_Entry uw_Sqlcache_find(uw_Sqlcache_Cache cache, char *key, size_t len, int bump) {
ziv@2279	4597 uw_Sqlcache_Entry *entry = NULL;
ziv@2279	4598 HASH_FIND(hh, cache->table, key, len, entry);
ziv@2279	4599 if (entry && bump) {
ziv@2279	4600 // Bump for LRU purposes.
ziv@2279	4601 HASH_DEL(cache->table, entry);
ziv@2279	4602 // Important that we use [entry->key], because [key] might be ephemeral.
ziv@2279	4603 HASH_ADD_KEYPTR(hh, cache->table, entry->key, len, entry);
ziv@2279	4604 }
ziv@2279	4605 return entry;
ziv@2279	4606 }
ziv@2279	4607
ziv@2288	4608 static void uw_Sqlcache_add(uw_Sqlcache_Cache cache, uw_Sqlcache_Entry entry, size_t len) {
ziv@2279	4609 HASH_ADD_KEYPTR(hh, cache->table, entry->key, len, entry);
ziv@2279	4610 if (HASH_COUNT(cache->table) > uw_Sqlcache_maxSize) {
ziv@2279	4611 // Deletes the first element of the cache.
ziv@2279	4612 uw_Sqlcache_delete(cache, cache->table);
ziv@2279	4613 }
ziv@2279	4614 }
ziv@2279	4615
ziv@2288	4616 static unsigned long uw_Sqlcache_getTimeNow(uw_Sqlcache_Cache *cache) {
ziv@2279	4617 return ++cache->timeNow;
ziv@2279	4618 }
ziv@2279	4619
ziv@2288	4620 static unsigned long uw_Sqlcache_timeMax(unsigned long x, unsigned long y) {
ziv@2279	4621 return x > y ? x : y;
ziv@2279	4622 }
ziv@2279	4623
ziv@2288	4624 static char uw_Sqlcache_keySep = '_';
ziv@2288	4625
ziv@2288	4626 static char uw_Sqlcache_allocKeyBuffer(char *keys, size_t numKeys) {
ziv@2279	4627 size_t len = 0;
ziv@2279	4628 while (numKeys-- > 0) {
ziv@2279	4629 char* k = keys[numKeys];
ziv@2279	4630 if (!k) {
adam@2296	4631 // Can only happen when flushing, in which case we don't need anything past the null key.
ziv@2279	4632 break;
ziv@2234	4633 }
ziv@2279	4634 // Leave room for separator.
ziv@2279	4635 len += 1 + strlen(k);
ziv@2234	4636 }
ziv@2279	4637 char *buf = malloc(len+1);
ziv@2279	4638 // If nothing is copied into the buffer, it should look like it has length 0.
ziv@2279	4639 buf[0] = 0;
ziv@2279	4640 return buf;
ziv@2279	4641 }
ziv@2279	4642
ziv@2288	4643 static char uw_Sqlcache_keyCopy(char buf, char *key) {
ziv@2279	4644 *buf++ = uw_Sqlcache_keySep;
ziv@2279	4645 return stpcpy(buf, key);
ziv@2279	4646 }
ziv@2279	4647
ziv@2279	4648 // The NUL-terminated prefix of [key] below always looks something like "_k1_k2_k3..._kn".
ziv@2285	4649
ziv@2285	4650 uw_Sqlcache_Value uw_Sqlcache_check(uw_context ctx, uw_Sqlcache_Cache cache, char **keys) {
ziv@2288	4651 int doBump = random() % 1024 == 0;
ziv@2288	4652 if (doBump) {
ziv@2288	4653 pthread_rwlock_wrlock(&cache->lockIn);
ziv@2288	4654 } else {
ziv@2288	4655 pthread_rwlock_rdlock(&cache->lockIn);
ziv@2288	4656 }
ziv@2281	4657 size_t numKeys = cache->numKeys;
ziv@2279	4658 char *key = uw_Sqlcache_allocKeyBuffer(keys, numKeys);
ziv@2279	4659 char *buf = key;
ziv@2279	4660 time_t timeInvalid = cache->timeInvalid;
ziv@2279	4661 uw_Sqlcache_Entry *entry;
ziv@2286	4662 if (numKeys == 0) {
ziv@2286	4663 entry = cache->table;
ziv@2279	4664 if (!entry) {
ziv@2279	4665 free(key);
ziv@2288	4666 pthread_rwlock_unlock(&cache->lockIn);
ziv@2279	4667 return NULL;
ziv@2279	4668 }
ziv@2286	4669 } else {
ziv@2286	4670 while (numKeys-- > 0) {
ziv@2286	4671 buf = uw_Sqlcache_keyCopy(buf, keys[numKeys]);
ziv@2286	4672 size_t len = buf - key;
ziv@2288	4673 entry = uw_Sqlcache_find(cache, key, len, doBump);
ziv@2286	4674 if (!entry) {
ziv@2286	4675 free(key);
ziv@2288	4676 pthread_rwlock_unlock(&cache->lockIn);
ziv@2286	4677 return NULL;
ziv@2286	4678 }
ziv@2286	4679 timeInvalid = uw_Sqlcache_timeMax(timeInvalid, entry->timeInvalid);
ziv@2286	4680 }
ziv@2286	4681 free(key);
ziv@2234	4682 }
ziv@2279	4683 uw_Sqlcache_Value *value = entry->value;
ziv@2288	4684 pthread_rwlock_unlock(&cache->lockIn);
ziv@2288	4685 // ASK: though the argument isn't trivial, this is safe, right?
ziv@2288	4686 // Returning outside the lock is safe because updates happen at commit time.
ziv@2288	4687 // Those are the only times the returned value or its strings can get freed.
ziv@2288	4688 // Handler output is a new string, so it's safe to free this at commit time.
ziv@2279	4689 return value && value->timeValid > timeInvalid ? value : NULL;
ziv@2279	4690 }
ziv@2279	4691
ziv@2288	4692 static void uw_Sqlcache_storeCommitOne(uw_Sqlcache_Cache cache, char keys, uw_Sqlcache_Value value) {
ziv@2288	4693 pthread_rwlock_wrlock(&cache->lockIn);
ziv@2281	4694 size_t numKeys = cache->numKeys;
ziv@2279	4695 time_t timeNow = uw_Sqlcache_getTimeNow(cache);
ziv@2279	4696 uw_Sqlcache_Entry *entry;
ziv@2286	4697 if (numKeys == 0) {
ziv@2286	4698 entry = cache->table;
ziv@2279	4699 if (!entry) {
adam@2296	4700 entry = calloc(1, sizeof(uw_Sqlcache_Entry));
ziv@2288	4701 entry->key = NULL;
ziv@2279	4702 entry->value = NULL;
ziv@2285	4703 entry->timeInvalid = 0;
ziv@2286	4704 cache->table = entry;
ziv@2234	4705 }
ziv@2286	4706 } else {
ziv@2288	4707 char *key = uw_Sqlcache_allocKeyBuffer(keys, numKeys);
ziv@2288	4708 char *buf = key;
ziv@2286	4709 while (numKeys-- > 0) {
ziv@2286	4710 buf = uw_Sqlcache_keyCopy(buf, keys[numKeys]);
ziv@2286	4711 size_t len = buf - key;
ziv@2286	4712 entry = uw_Sqlcache_find(cache, key, len, 1);
ziv@2286	4713 if (!entry) {
adam@2296	4714 entry = calloc(1, sizeof(uw_Sqlcache_Entry));
ziv@2286	4715 entry->key = strdup(key);
ziv@2286	4716 entry->value = NULL;
ziv@2286	4717 entry->timeInvalid = 0;
ziv@2286	4718 uw_Sqlcache_add(cache, entry, len);
ziv@2286	4719 }
ziv@2286	4720 }
ziv@2286	4721 free(key);
ziv@2234	4722 }
adam@2297	4723 if (entry->value && entry->value->timeValid < value->timeValid) {
adam@2297	4724 uw_Sqlcache_freeValue(entry->value);
adam@2297	4725 entry->value = value;
adam@2297	4726 entry->value->timeValid = timeNow;
adam@2297	4727 }
ziv@2288	4728 pthread_rwlock_unlock(&cache->lockIn);
ziv@2288	4729 }
ziv@2288	4730
ziv@2288	4731 static void uw_Sqlcache_flushCommitOne(uw_Sqlcache_Cache cache, char *keys) {
ziv@2288	4732 }
ziv@2288	4733
ziv@2288	4734 static void uw_Sqlcache_commit(void *data) {
ziv@2288	4735 uw_context ctx = (uw_context)data;
ziv@2288	4736 uw_Sqlcache_Update *update = ctx->cacheUpdate;
ziv@2288	4737 while (update) {
ziv@2288	4738 uw_Sqlcache_Cache *cache = update->cache;
ziv@2288	4739 char **keys = update->keys;
ziv@2288	4740 if (update->value) {
ziv@2288	4741 uw_Sqlcache_storeCommitOne(cache, keys, update->value);
ziv@2288	4742 } else {
ziv@2288	4743 uw_Sqlcache_flushCommitOne(cache, keys);
ziv@2288	4744 }
ziv@2288	4745 update = update->next;
ziv@2288	4746 }
ziv@2288	4747 }
ziv@2288	4748
ziv@2288	4749 static void uw_Sqlcache_free(void *data, int dontCare) {
ziv@2285	4750 uw_context ctx = (uw_context)data;
ziv@2285	4751 uw_Sqlcache_Update *update = ctx->cacheUpdate;
ziv@2285	4752 while (update) {
ziv@2285	4753 char** keys = update->keys;
ziv@2285	4754 size_t numKeys = update->cache->numKeys;
ziv@2282	4755 while (numKeys-- > 0) {
ziv@2282	4756 free(keys[numKeys]);
ziv@2282	4757 }
ziv@2282	4758 free(keys);
ziv@2285	4759 // Don't free [update->value]: it's in the cache now!
ziv@2285	4760 uw_Sqlcache_Update *nextUpdate = update->next;
ziv@2285	4761 free(update);
ziv@2285	4762 update = nextUpdate;
ziv@2282	4763 }
ziv@2285	4764 ctx->cacheUpdate = NULL;
ziv@2285	4765 ctx->cacheUpdateTail = NULL;
ziv@2288	4766 uw_Sqlcache_Unlock *unlock = ctx->cacheUnlock;
ziv@2288	4767 while (unlock) {
ziv@2288	4768 pthread_rwlock_unlock(unlock->lock);
ziv@2288	4769 uw_Sqlcache_Unlock *nextUnlock = unlock->next;
ziv@2288	4770 free(unlock);
ziv@2288	4771 unlock = nextUnlock;
ziv@2282	4772 }
ziv@2288	4773 ctx->cacheUnlock = NULL;
ziv@2288	4774 }
ziv@2288	4775
ziv@2288	4776 static void uw_Sqlcache_pushUnlock(uw_context ctx, pthread_rwlock_t *lock) {
ziv@2288	4777 if (!ctx->cacheUnlock) {
ziv@2288	4778 // Just need one registered commit for both updating and unlocking.
ziv@2288	4779 uw_register_transactional(ctx, ctx, uw_Sqlcache_commit, NULL, uw_Sqlcache_free);
ziv@2288	4780 }
ziv@2288	4781 uw_Sqlcache_Unlock *unlock = malloc(sizeof(uw_Sqlcache_Unlock));
ziv@2288	4782 unlock->lock = lock;
ziv@2288	4783 unlock->next = ctx->cacheUnlock;
ziv@2288	4784 ctx->cacheUnlock = unlock;
ziv@2288	4785 }
ziv@2288	4786
ziv@2288	4787 void uw_Sqlcache_rlock(uw_context ctx, uw_Sqlcache_Cache *cache) {
ziv@2288	4788 pthread_rwlock_rdlock(&cache->lockOut);
ziv@2288	4789 uw_Sqlcache_pushUnlock(ctx, &cache->lockOut);
ziv@2288	4790 }
ziv@2288	4791
ziv@2288	4792 void uw_Sqlcache_wlock(uw_context ctx, uw_Sqlcache_Cache *cache) {
ziv@2288	4793 pthread_rwlock_wrlock(&cache->lockOut);
ziv@2288	4794 uw_Sqlcache_pushUnlock(ctx, &cache->lockOut);
ziv@2288	4795 }
ziv@2288	4796
ziv@2288	4797 static char uw_Sqlcache_copyKeys(char keys, size_t numKeys) {
ziv@2284	4798 char *copy = malloc(sizeof(char ) * numKeys);
ziv@2284	4799 while (numKeys-- > 0) {
ziv@2285	4800 char *k = keys[numKeys];
ziv@2284	4801 copy[numKeys] = k ? strdup(k) : NULL;
ziv@2284	4802 }
ziv@2284	4803 return copy;
ziv@2282	4804 }
ziv@2282	4805
ziv@2285	4806 void uw_Sqlcache_store(uw_context ctx, uw_Sqlcache_Cache cache, char keys, uw_Sqlcache_Value value) {
ziv@2285	4807 uw_Sqlcache_Update *update = malloc(sizeof(uw_Sqlcache_Update));
ziv@2285	4808 update->cache = cache;
ziv@2285	4809 update->keys = uw_Sqlcache_copyKeys(keys, cache->numKeys);
ziv@2285	4810 update->value = value;
ziv@2285	4811 update->next = NULL;
adam@2297	4812 value->timeValid = uw_Sqlcache_getTimeNow(cache);
ziv@2285	4813 if (ctx->cacheUpdateTail) {
ziv@2285	4814 ctx->cacheUpdateTail->next = update;
ziv@2285	4815 } else {
ziv@2285	4816 ctx->cacheUpdate = update;
ziv@2285	4817 }
ziv@2285	4818 ctx->cacheUpdateTail = update;
ziv@2285	4819 }
ziv@2285	4820
ziv@2282	4821 void uw_Sqlcache_flush(uw_context ctx, uw_Sqlcache_Cache cache, char *keys) {
ziv@2291	4822 // A flush has to happen immediately so that subsequent stores in the same transaction fail.
ziv@2291	4823 // This is safe to do because we will always call [uw_Sqlcache_wlock] earlier.
ziv@2291	4824 // If the transaction fails, the only harm done is a few extra cache misses.
ziv@2291	4825 pthread_rwlock_wrlock(&cache->lockIn);
ziv@2291	4826 size_t numKeys = cache->numKeys;
ziv@2291	4827 if (numKeys == 0) {
ziv@2291	4828 uw_Sqlcache_Entry *entry = cache->table;
ziv@2291	4829 if (entry) {
ziv@2291	4830 uw_Sqlcache_freeValue(entry->value);
ziv@2291	4831 entry->value = NULL;
ziv@2291	4832 }
ziv@2291	4833 } else {
ziv@2291	4834 char *key = uw_Sqlcache_allocKeyBuffer(keys, numKeys);
ziv@2291	4835 char *buf = key;
ziv@2291	4836 time_t timeNow = uw_Sqlcache_getTimeNow(cache);
ziv@2291	4837 while (numKeys-- > 0) {
ziv@2291	4838 char *k = keys[numKeys];
ziv@2291	4839 if (!k) {
ziv@2291	4840 size_t len = buf - key;
ziv@2291	4841 if (len == 0) {
ziv@2291	4842 // The first key was null.
ziv@2291	4843 cache->timeInvalid = timeNow;
ziv@2291	4844 } else {
ziv@2291	4845 uw_Sqlcache_Entry *entry = uw_Sqlcache_find(cache, key, len, 0);
ziv@2291	4846 if (entry) {
ziv@2291	4847 entry->timeInvalid = timeNow;
ziv@2291	4848 }
ziv@2291	4849 }
ziv@2291	4850 free(key);
ziv@2291	4851 pthread_rwlock_unlock(&cache->lockIn);
ziv@2291	4852 return;
ziv@2291	4853 }
ziv@2291	4854 buf = uw_Sqlcache_keyCopy(buf, k);
ziv@2291	4855 }
ziv@2291	4856 // All the keys were non-null, so we delete the pointed-to entry.
ziv@2291	4857 size_t len = buf - key;
ziv@2291	4858 uw_Sqlcache_Entry *entry = uw_Sqlcache_find(cache, key, len, 0);
ziv@2291	4859 free(key);
ziv@2291	4860 uw_Sqlcache_delete(cache, entry);
ziv@2291	4861 }
ziv@2291	4862 pthread_rwlock_unlock(&cache->lockIn);
ziv@2291	4863 }

Mercurial > urweb

annotate src/c/urweb.c @ 2297:6d56080f495c