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

annotate src/c/urweb.c @ 2085:fd6d362666c0

Optimizing writes of single characters

author	Adam Chlipala <adam@chlipala.net>
date	Thu, 04 Dec 2014 19:54:04 -0500
parents	1839df6ed755
children	7755f00a4fc3 5709482a2afd

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

Mercurial > urweb

annotate src/c/urweb.c @ 2085:fd6d362666c0