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

annotate src/c/urweb.c @ 2282:19b233bb3176

Make cache flushes safe for transactions (not sure about LRU bump on read).

author	Ziv Scully <ziv@mit.edu>
date	Thu, 12 Nov 2015 09:47:20 -0500
parents	75cb60a7f6f1
children	4afaab523213

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

Mercurial > urweb

annotate src/c/urweb.c @ 2282:19b233bb3176