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

annotate src/c/urweb.c @ 2079:e1879ded8095

Textual HTML5 AJAX widgets

author	Adam Chlipala <adam@chlipala.net>
date	Sun, 16 Nov 2014 15:03:29 -0500
parents	1839df6ed755
children	fd6d362666c0 794017f378de

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
adamc@311	1662 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1663 int len = strlen(s);
adamc@666	1664 memcpy(ctx->page.front, s, len);
adamc@666	1665 ctx->page.front += len;
adamc@117	1666 }
adamc@117	1667
adamc@311	1668 void uw_write(uw_context ctx, const char* s) {
adamc@311	1669 uw_check(ctx, strlen(s) + 1);
adamc@311	1670 uw_write_unsafe(ctx, s);
adamc@666	1671 *ctx->page.front = 0;
adamc@102	1672 }
adamc@106	1673
adamc@311	1674 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1675 char *result;
adamc@136	1676 int len;
adamc@311	1677 uw_check_heap(ctx, INTS_MAX);
adamc@666	1678 result = ctx->heap.front;
adamc@276	1679 sprintf(result, "%lld%n", n, &len);
adamc@666	1680 ctx->heap.front += len+1;
adamc@136	1681 return result;
adamc@106	1682 }
adamc@106	1683
adamc@311	1684 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1685 char *result;
adamc@136	1686 int len;
adamc@311	1687 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1688 result = ctx->heap.front;
adam@1920	1689 sprintf(result, "%.16g%n", n, &len);
adamc@666	1690 ctx->heap.front += len+1;
adamc@136	1691 return result;
adamc@106	1692 }
adamc@106	1693
adamc@311	1694 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1695 int len = strlen(s);
adamc@136	1696 char result, p;
adamc@311	1697 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1698
adamc@666	1699 result = p = ctx->heap.front;
adamc@136	1700
adamc@136	1701 for (; *s; s++) {
adamc@1054	1702 unsigned char c = *s;
adamc@136	1703
adamc@136	1704 if (c == '"') {
adamc@136	1705 strcpy(p, """);
adamc@136	1706 p += 6;
adamc@136	1707 } else if (c == '&') {
adamc@136	1708 strcpy(p, "&");
adamc@136	1709 p += 5;
adamc@136	1710 }
adamc@1059	1711 else
adamc@136	1712 *p++ = c;
adamc@136	1713 }
adamc@136	1714
adamc@137	1715 *p++ = 0;
adamc@666	1716 ctx->heap.front = p;
adamc@136	1717 return result;
adamc@106	1718 }
adamc@106	1719
adamc@1011	1720 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1721 char result, p;
adamc@1011	1722 uw_check_heap(ctx, 7);
adamc@1011	1723
adamc@1011	1724 result = p = ctx->heap.front;
adamc@1011	1725
adamc@1011	1726 if (c == '"') {
adamc@1011	1727 strcpy(p, """);
adamc@1011	1728 p += 6;
adamc@1011	1729 } else if (c == '&') {
adamc@1011	1730 strcpy(p, "&");
adamc@1011	1731 p += 5;
adamc@1011	1732 }
adamc@1059	1733 else
adamc@1011	1734 *p++ = c;
adamc@1011	1735
adamc@1011	1736 *p++ = 0;
adamc@1011	1737 ctx->heap.front = p;
adamc@1011	1738 return result;
adamc@1011	1739 }
adamc@1011	1740
adamc@721	1741 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1742 return s;
adamc@721	1743 }
adamc@721	1744
adamc@311	1745 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1746 int len;
adamc@117	1747
adamc@666	1748 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1749 ctx->page.front += len;
adamc@106	1750 }
adamc@106	1751
adamc@428	1752 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1753 uw_check(ctx, INTS_MAX);
adamc@311	1754 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1755
adamc@428	1756 return uw_unit_v;
adamc@106	1757 }
adamc@106	1758
adamc@428	1759 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1760 int len;
adamc@117	1761
adamc@311	1762 uw_check(ctx, FLOATS_MAX);
adamc@666	1763 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1764 ctx->page.front += len;
adamc@428	1765
adamc@428	1766 return uw_unit_v;
adamc@117	1767 }
adamc@117	1768
adamc@428	1769 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1770 uw_check(ctx, strlen(s) * 6);
adamc@117	1771
adamc@106	1772 for (; *s; s++) {
adamc@1054	1773 unsigned char c = *s;
adamc@106	1774
adamc@106	1775 if (c == '"')
adamc@311	1776 uw_write_unsafe(ctx, """);
adamc@136	1777 else if (c == '&')
adamc@311	1778 uw_write_unsafe(ctx, "&");
adamc@1059	1779 else
adamc@311	1780 uw_writec_unsafe(ctx, c);
adamc@106	1781 }
adamc@428	1782
adamc@428	1783 return uw_unit_v;
adamc@106	1784 }
adamc@120	1785
adamc@1011	1786 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1787 uw_check(ctx, 6);
adamc@1011	1788
adamc@1011	1789 if (c == '"')
adamc@1011	1790 uw_write_unsafe(ctx, """);
adamc@1011	1791 else if (c == '&')
adamc@1011	1792 uw_write_unsafe(ctx, "&");
adamc@1059	1793 else
adamc@1011	1794 uw_writec_unsafe(ctx, c);
adamc@1011	1795
adamc@1011	1796 return uw_unit_v;
adamc@1011	1797 }
adamc@1011	1798
adamc@120	1799
adamc@311	1800 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1801 int len;
adamc@137	1802 char *r;
adamc@137	1803
adamc@311	1804 uw_check_heap(ctx, INTS_MAX);
adamc@666	1805 r = ctx->heap.front;
adamc@276	1806 sprintf(r, "%lld%n", n, &len);
adamc@666	1807 ctx->heap.front += len+1;
adamc@137	1808 return r;
adamc@120	1809 }
adamc@120	1810
adamc@682	1811 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1812 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1813 return "";
adamc@682	1814 else {
adamc@682	1815 int len;
adamc@682	1816 char *r;
adamc@679	1817
adamc@682	1818 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1819 r = ctx->heap.front;
adamc@682	1820 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1821 ctx->heap.front += len+1;
adamc@682	1822 return r;
adamc@682	1823 }
adamc@679	1824 }
adamc@679	1825
adamc@311	1826 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1827 int len;
adamc@137	1828 char *r;
adamc@137	1829
adamc@311	1830 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1831 r = ctx->heap.front;
adamc@137	1832 sprintf(r, "%g%n", n, &len);
adamc@666	1833 ctx->heap.front += len+1;
adamc@137	1834 return r;
adamc@120	1835 }
adamc@120	1836
adamc@311	1837 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1838 char r, p;
adamc@137	1839
adamc@925	1840 if (s[0] == '\0')
adamc@925	1841 return "_";
adamc@925	1842
adamc@925	1843 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1844
adamc@925	1845 r = p = ctx->heap.front;
adamc@925	1846 if (s[0] == '_')
adamc@925	1847 *p++ = '_';
adamc@925	1848
adamc@925	1849 for (; *s; s++) {
adamc@1087	1850 unsigned char c = *s;
adamc@137	1851
adamc@137	1852 if (c == ' ')
adamc@137	1853 *p++ = '+';
adamc@137	1854 else if (isalnum(c))
adamc@137	1855 *p++ = c;
adamc@137	1856 else {
adamc@1259	1857 sprintf(p, ".%02X", c);
adamc@137	1858 p += 3;
adamc@137	1859 }
adamc@137	1860 }
adamc@137	1861
adamc@137	1862 *p++ = 0;
adamc@666	1863 ctx->heap.front = p;
adamc@137	1864 return r;
adamc@120	1865 }
adamc@120	1866
adamc@311	1867 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1868 if (b == uw_Basis_False)
adamc@186	1869 return "0";
adamc@186	1870 else
adamc@186	1871 return "1";
adamc@186	1872 }
adamc@186	1873
adam@1620	1874 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1875 char *r;
adam@1620	1876 int len;
adam@1620	1877 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1878 r = ctx->heap.front;
adam@1620	1879 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1880 ctx->heap.front += len+1;
adam@1620	1881 return r;
adam@1620	1882 }
adam@1620	1883
adamc@311	1884 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1885 int len;
adamc@120	1886
adamc@666	1887 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1888 ctx->page.front += len;
adamc@120	1889 }
adamc@120	1890
adamc@428	1891 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1892 uw_check(ctx, INTS_MAX);
adamc@311	1893 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1894
adamc@428	1895 return uw_unit_v;
adamc@120	1896 }
adamc@120	1897
adamc@682	1898 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1899 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1900 int len;
phurst@1981	1901
adamc@682	1902 uw_check(ctx, INTS_MAX + 1);
adamc@682	1903 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1904 ctx->page.front += len;
adamc@682	1905 }
phurst@1981	1906
adamc@679	1907 return uw_unit_v;
adamc@679	1908 }
adamc@679	1909
adamc@428	1910 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1911 int len;
adamc@120	1912
adamc@311	1913 uw_check(ctx, FLOATS_MAX);
adamc@666	1914 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1915 ctx->page.front += len;
adamc@428	1916
adamc@428	1917 return uw_unit_v;
adamc@120	1918 }
adamc@120	1919
adamc@488	1920 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1921 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1922 }
adamc@488	1923
adam@1404	1924 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1925 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1926 }
adam@1404	1927
adamc@428	1928 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1929 if (s[0] == '\0') {
adamc@925	1930 uw_check(ctx, 1);
adamc@925	1931 uw_writec_unsafe(ctx, '_');
adamc@925	1932 return uw_unit_v;
adamc@925	1933 }
adamc@925	1934
adamc@925	1935 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1936
adamc@925	1937 if (s[0] == '_')
adamc@925	1938 uw_writec_unsafe(ctx, '_');
adamc@120	1939
adamc@120	1940 for (; *s; s++) {
adamc@1087	1941 unsigned char c = *s;
adamc@120	1942
adamc@120	1943 if (c == ' ')
adamc@311	1944 uw_writec_unsafe(ctx, '+');
adamc@120	1945 else if (isalnum(c))
adamc@311	1946 uw_writec_unsafe(ctx, c);
adamc@120	1947 else {
adamc@1259	1948 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1949 ctx->page.front += 3;
adamc@120	1950 }
adamc@120	1951 }
adamc@428	1952
adamc@428	1953 return uw_unit_v;
adamc@120	1954 }
adamc@120	1955
adamc@428	1956 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1957 if (b == uw_Basis_False)
adamc@311	1958 uw_writec(ctx, '0');
adamc@186	1959 else
adamc@311	1960 uw_writec(ctx, '1');
adamc@428	1961
adamc@428	1962 return uw_unit_v;
adamc@186	1963 }
adamc@186	1964
adam@1620	1965 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	1966 int len;
phurst@1981	1967
adam@1620	1968 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	1969 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1970 ctx->page.front += len;
phurst@1981	1971
adam@1620	1972 return uw_unit_v;
adam@1620	1973 }
adam@1620	1974
adamc@120	1975
adamc@311	1976 static char uw_unurlify_advance(char s) {
adamc@144	1977 char *new_s = strchr(s, '/');
adamc@120	1978
adamc@120	1979 if (new_s)
adamc@120	1980 *new_s++ = 0;
adamc@120	1981 else
adamc@144	1982 new_s = strchr(s, 0);
adamc@144	1983
adamc@144	1984 return new_s;
adamc@144	1985 }
adamc@144	1986
adamc@311	1987 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1988 char new_s = uw_unurlify_advance(s);
adamc@311	1989 uw_Basis_int r;
adamc@120	1990
adamc@276	1991 r = atoll(*s);
adamc@120	1992 *s = new_s;
adamc@120	1993 return r;
adamc@120	1994 }
adamc@120	1995
adamc@311	1996 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1997 char new_s = uw_unurlify_advance(s);
adamc@311	1998 uw_Basis_float r;
adamc@120	1999
adamc@120	2000 r = atof(*s);
adamc@120	2001 *s = new_s;
adamc@120	2002 return r;
adamc@120	2003 }
adamc@120	2004
adamc@488	2005 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	2006 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	2007 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	2008 return r;
adamc@488	2009 }
adamc@488	2010
adamc@1023	2011 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	2012 char s1, s2 = s;
adamc@144	2013 int n;
adamc@136	2014
adamc@1023	2015 if (!fromClient) {
adamc@1023	2016 if (*s2 == '_')
adamc@1023	2017 ++s2;
adamc@1259	2018 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	2019 s2 += 3;
adamc@1023	2020 }
adamc@925	2021
adamc@927	2022 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	2023 unsigned char c = *s2;
adamc@136	2024
adamc@136	2025 switch (c) {
adamc@136	2026 case '+':
adamc@136	2027 *s1 = ' ';
adamc@136	2028 break;
adamc@136	2029 case '%':
adamc@169	2030 if (s2[1] == 0)
adamc@311	2031 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	2032 if (s2[2] == 0)
adamc@311	2033 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	2034 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2035 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	2036 *s1 = n;
adamc@136	2037 s2 += 2;
adamc@136	2038 break;
adamc@1259	2039 case '.':
adamc@1259	2040 if (!fromClient) {
adamc@1259	2041 if (s2[1] == 0)
adamc@1259	2042 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	2043 if (s2[2] == 0)
adamc@1259	2044 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	2045 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2046 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	2047 *s1 = n;
adamc@1259	2048 s2 += 2;
adamc@1259	2049 break;
adamc@1259	2050 }
adamc@136	2051 default:
adamc@136	2052 *s1 = c;
adamc@136	2053 }
adamc@136	2054 }
adamc@136	2055 *s1++ = 0;
adamc@144	2056 return s1;
adamc@144	2057 }
adamc@144	2058
adamc@311	2059 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	2060 char new_s = uw_unurlify_advance(s);
adamc@311	2061 uw_Basis_bool r;
phurst@1981	2062
adamc@186	2063 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2064 r = uw_Basis_False;
adamc@186	2065 else
adamc@311	2066 r = uw_Basis_True;
adamc@186	2067
adamc@186	2068 *s = new_s;
adamc@186	2069 return r;
adamc@186	2070 }
adamc@186	2071
adamc@311	2072 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2073 char new_s = uw_unurlify_advance(s);
adamc@1134	2074 char *r;
adamc@1134	2075 int len;
adamc@144	2076
adamc@200	2077 len = strlen(*s);
adamc@311	2078 uw_check_heap(ctx, len + 1);
adamc@144	2079
adamc@666	2080 r = ctx->heap.front;
adamc@1023	2081 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2082 *s = new_s;
adamc@1023	2083 return r;
adamc@1023	2084 }
adamc@1023	2085
adamc@1109	2086 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2087 s = uw_unurlify_advance(s);
adamc@1109	2088 return uw_unit_v;
adamc@1109	2089 }
adamc@1109	2090
adamc@1023	2091 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2092 char new_s = uw_unurlify_advance(s);
adamc@1134	2093 char *r;
adamc@1134	2094 int len;
adamc@1023	2095
adamc@1023	2096 len = strlen(*s);
adamc@1023	2097 uw_check_heap(ctx, len + 1);
adamc@1023	2098
adamc@1023	2099 r = ctx->heap.front;
adamc@1023	2100 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2101 *s = new_s;
adamc@136	2102 return r;
adamc@120	2103 }
adamc@135	2104
adamc@135	2105
adamc@311	2106 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2107 int len;
adamc@286	2108 char *r;
adamc@286	2109
adamc@311	2110 uw_check_heap(ctx, INTS_MAX);
adamc@666	2111 r = ctx->heap.front;
adamc@286	2112 sprintf(r, "%lld%n", n, &len);
adamc@666	2113 ctx->heap.front += len+1;
adamc@286	2114 return r;
adamc@286	2115 }
adamc@286	2116
adamc@428	2117 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2118 int len;
adamc@286	2119
adamc@311	2120 uw_check(ctx, INTS_MAX);
adamc@666	2121 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2122 ctx->page.front += len;
phurst@1981	2123
adamc@428	2124 return uw_unit_v;
adamc@286	2125 }
adamc@286	2126
adam@1358	2127 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2128 unsigned int n = ch;
adam@1358	2129 int len;
adam@1358	2130 char *r;
adam@1358	2131
adam@1358	2132 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2133 r = ctx->heap.front;
adam@1358	2134 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2135 ctx->heap.front += len+1;
adam@1358	2136 return r;
adam@1358	2137 }
adam@1358	2138
adam@1358	2139 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2140 unsigned int n = ch;
adam@1358	2141 int len;
adam@1358	2142
adam@1358	2143 uw_check(ctx, INTS_MAX+3);
adam@1358	2144 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2145 ctx->page.front += len;
adam@1358	2146 return uw_unit_v;
adam@1358	2147 }
adam@1358	2148
adamc@311	2149 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2150 int len;
adamc@286	2151 char *r;
adamc@286	2152
adamc@311	2153 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2154 r = ctx->heap.front;
adamc@286	2155 sprintf(r, "%g%n", n, &len);
adamc@666	2156 ctx->heap.front += len+1;
adamc@286	2157 return r;
adamc@286	2158 }
adamc@286	2159
adamc@428	2160 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2161 int len;
adamc@286	2162
adamc@311	2163 uw_check(ctx, FLOATS_MAX);
adamc@666	2164 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2165 ctx->page.front += len;
adamc@428	2166
adamc@428	2167 return uw_unit_v;
adamc@286	2168 }
adamc@286	2169
adam@1365	2170 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2171 int len;
adam@1360	2172 char *r;
adam@1360	2173
adam@1360	2174 uw_check_heap(ctx, INTS_MAX);
adam@1360	2175 r = ctx->heap.front;
adamc@1377	2176 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2177 ctx->heap.front += len+1;
adam@1360	2178 return r;
adam@1360	2179 }
adam@1360	2180
adam@1365	2181 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2182 int len;
adam@1360	2183
adam@1360	2184 uw_check(ctx, INTS_MAX);
adam@1360	2185 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2186 ctx->page.front += len;
phurst@1981	2187
adam@1360	2188 return uw_unit_v;
adam@1360	2189 }
adam@1360	2190
adam@1444	2191 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2192 char r, s2;
adamc@137	2193
adamc@311	2194 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2195
adamc@666	2196 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2197 unsigned char c = *s;
adamc@137	2198
adamc@137	2199 switch (c) {
adamc@137	2200 case '<':
adamc@137	2201 strcpy(s2, "<");
adamc@137	2202 s2 += 4;
adamc@137	2203 break;
adamc@137	2204 case '&':
adamc@137	2205 strcpy(s2, "&");
adamc@137	2206 s2 += 5;
adamc@137	2207 break;
adamc@137	2208 default:
adamc@1059	2209 *s2++ = c;
adamc@137	2210 }
adamc@137	2211 }
adamc@137	2212
adamc@137	2213 *s2++ = 0;
adamc@666	2214 ctx->heap.front = s2;
adamc@137	2215 return r;
adamc@135	2216 }
adamc@135	2217
adamc@428	2218 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2219 uw_check(ctx, strlen(s) * 6);
adamc@135	2220
adamc@135	2221 for (; *s; s++) {
adamc@1054	2222 unsigned char c = *s;
adamc@135	2223
adamc@135	2224 switch (c) {
adamc@135	2225 case '<':
adamc@311	2226 uw_write_unsafe(ctx, "<");
adamc@135	2227 break;
adamc@135	2228 case '&':
adamc@311	2229 uw_write_unsafe(ctx, "&");
adamc@135	2230 break;
adamc@135	2231 default:
adamc@1059	2232 uw_writec_unsafe(ctx, c);
adamc@135	2233 }
adamc@135	2234 }
adamc@428	2235
adamc@428	2236 return uw_unit_v;
adamc@135	2237 }
adamc@180	2238
adamc@311	2239 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2240 if (b == uw_Basis_False)
adamc@286	2241 return "False";
adamc@286	2242 else
adamc@286	2243 return "True";
adamc@286	2244 }
adamc@286	2245
adamc@428	2246 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2247 if (b == uw_Basis_False) {
adamc@311	2248 uw_check(ctx, 6);
adamc@666	2249 strcpy(ctx->page.front, "False");
adamc@666	2250 ctx->page.front += 5;
adamc@286	2251 } else {
adamc@311	2252 uw_check(ctx, 5);
adamc@666	2253 strcpy(ctx->page.front, "True");
adamc@666	2254 ctx->page.front += 4;
adamc@286	2255 }
adamc@428	2256
adamc@428	2257 return uw_unit_v;
adamc@286	2258 }
adamc@286	2259
adamc@436	2260 #define TIME_FMT "%x %X"
adamc@438	2261 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2262 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2263
adam@1629	2264 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2265
adamc@436	2266 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2267 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2268 }
adamc@436	2269
adamc@436	2270 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2271 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2272 }
adamc@436	2273
adam@1446	2274 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2275 int len;
adam@1446	2276 char *r;
adam@1446	2277
adam@1446	2278 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2279 r = ctx->heap.front;
adam@1446	2280 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2281 ctx->heap.front += len+1;
adam@1446	2282 return r;
adam@1446	2283 }
adam@1446	2284
adam@1446	2285 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2286 int len;
adam@1446	2287
adam@1446	2288 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2289 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2290 ctx->page.front += len;
phurst@1981	2291
adam@1446	2292 return uw_unit_v;
adam@1446	2293 }
adam@1446	2294
adamc@821	2295 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2296 while (n >= 0) {
adam@1388	2297 if (*s == 0)
adam@1388	2298 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2299
adam@1388	2300 if (n == 0)
adam@1388	2301 return *s;
adam@1388	2302
adam@1388	2303 --n;
adam@1388	2304 ++s;
adam@1388	2305 }
adam@1388	2306
adam@1388	2307 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2308 }
adamc@821	2309
adamc@821	2310 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2311 while (n >= 0) {
adam@1388	2312 if (*s == 0 \|\| n == 0)
adam@1388	2313 return s;
adam@1388	2314
adam@1388	2315 --n;
adam@1388	2316 ++s;
adam@1388	2317 }
adam@1388	2318
adam@1388	2319 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2320 }
adamc@821	2321
adamc@828	2322 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2323 return strlen(s);
adamc@828	2324 }
adamc@828	2325
adam@1388	2326 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2327 while (n > 0) {
adam@1388	2328 if (*s == 0)
adam@1388	2329 return uw_Basis_False;
adam@1388	2330
adam@1388	2331 --n;
adam@1388	2332 ++s;
adam@1388	2333 }
adam@1388	2334
adam@1388	2335 return uw_Basis_True;
adam@1388	2336 }
adam@1388	2337
adamc@829	2338 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2339 return strchr(s, ch);
adamc@829	2340 }
adamc@829	2341
adamc@831	2342 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2343 return strcspn(s, chs);
adamc@831	2344 }
adamc@831	2345
adamc@829	2346 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2347 uw_Basis_string r = strchr(s, ch);
adamc@829	2348 if (r == NULL)
adamc@829	2349 return NULL;
adamc@829	2350 else {
adamc@829	2351 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2352 *nr = r - s;
adamc@829	2353 return nr;
adamc@829	2354 }
adamc@829	2355 }
adamc@829	2356
adam@1390	2357 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2358 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2359 if (r == NULL)
adam@1390	2360 return NULL;
adam@1390	2361 else {
adam@1390	2362 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2363 *nr = r - haystack;
adam@1390	2364 return nr;
adam@1390	2365 }
adam@1390	2366 }
adam@1390	2367
adamc@311	2368 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2369 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2370 char *s;
adamc@180	2371
adamc@311	2372 uw_check_heap(ctx, len);
adamc@180	2373
adamc@666	2374 s = ctx->heap.front;
adamc@180	2375
adamc@180	2376 strcpy(s, s1);
adamc@180	2377 strcat(s, s2);
adamc@666	2378 ctx->heap.front += len;
adamc@180	2379
adamc@180	2380 return s;
adamc@180	2381 }
adamc@278	2382
adamc@829	2383 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2384 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2385
adamc@829	2386 if (start < 0)
adamc@829	2387 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2388 if (len < 0)
adamc@829	2389 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2390 if (start + len > full_len)
adamc@829	2391 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2392
adamc@829	2393 if (start + len == full_len)
adamc@829	2394 return &s[start];
adamc@829	2395 else {
adamc@829	2396 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2397 memcpy(r, s+start, len);
adamc@829	2398 r[len] = 0;
adamc@829	2399 return r;
adamc@829	2400 }
phurst@1981	2401
adamc@829	2402 }
adamc@829	2403
adamc@1023	2404 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2405 char *r;
adamc@1023	2406
adamc@1023	2407 uw_check_heap(ctx, 2);
adamc@1023	2408 r = ctx->heap.front;
adamc@1023	2409 r[0] = ch;
adamc@1023	2410 r[1] = 0;
adamc@1023	2411
adamc@1023	2412 ctx->heap.front += 2;
adamc@1023	2413
adamc@1023	2414 return r;
adamc@1023	2415 }
adamc@1023	2416
adamc@737	2417 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2418 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2419 char *s;
adamc@278	2420
adamc@311	2421 uw_check_heap(ctx, len);
adamc@278	2422
adamc@666	2423 s = ctx->heap.front;
adamc@278	2424
adamc@278	2425 strcpy(s, s1);
adamc@666	2426 ctx->heap.front += len;
adamc@278	2427
adamc@278	2428 return s;
adamc@278	2429 }
adamc@280	2430
adam@1295	2431 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2432 if (ctx->error_message[0]) {
adam@1295	2433 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2434 ctx->error_message[0] = 0;
adam@1295	2435 return s;
adam@1295	2436 } else
adam@1295	2437 return NULL;
adam@1295	2438 }
adam@1295	2439
adamc@737	2440 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2441 if (s1)
adamc@737	2442 return uw_strdup(ctx, s1);
adamc@493	2443 else
adamc@493	2444 return NULL;
adamc@493	2445 }
adamc@493	2446
adamc@742	2447 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2448 char *r = uw_malloc(ctx, len);
adamc@742	2449 memcpy(r, p, len);
adamc@742	2450 return r;
adamc@742	2451 }
adamc@280	2452
adamc@879	2453 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2454
adamc@311	2455 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2456 int len;
adamc@281	2457 char *r;
adamc@281	2458
adamc@311	2459 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2460 r = ctx->heap.front;
adamc@879	2461 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2462 ctx->heap.front += len+1;
adamc@281	2463 return r;
adamc@281	2464 }
adamc@281	2465
adamc@467	2466 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2467 if (n == NULL)
adamc@467	2468 return "NULL";
adamc@467	2469 else
adamc@467	2470 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2471 }
adamc@467	2472
adam@1920	2473 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879	2474
adamc@311	2475 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2476 int len;
adamc@281	2477 char *r;
adamc@281	2478
adamc@311	2479 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2480 r = ctx->heap.front;
adamc@879	2481 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2482 ctx->heap.front += len+1;
adamc@281	2483 return r;
adamc@281	2484 }
adamc@281	2485
adamc@467	2486 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2487 if (n == NULL)
adamc@467	2488 return "NULL";
adamc@467	2489 else
adamc@467	2490 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2491 }
adamc@467	2492
adam@1834	2493 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2494 char *uw_sqlsuffixString = "::text";
adamc@1011	2495 char *uw_sqlsuffixChar = "::char";
adamc@281	2496
adamc@311	2497 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2498 char r, s2;
adamc@280	2499
adamc@879	2500 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2501
adamc@666	2502 r = s2 = ctx->heap.front;
adamc@879	2503 if (uw_Estrings)
adamc@879	2504 *s2++ = 'E';
adamc@280	2505 *s2++ = '\'';
adamc@280	2506
adamc@280	2507 for (; *s; s++) {
adamc@280	2508 char c = *s;
adamc@280	2509
adamc@280	2510 switch (c) {
adamc@280	2511 case '\'':
adamc@885	2512 if (uw_Estrings)
adamc@885	2513 strcpy(s2, "\\'");
adamc@885	2514 else
adamc@885	2515 strcpy(s2, "''");
adamc@280	2516 s2 += 2;
adamc@280	2517 break;
adamc@280	2518 case '\\':
adamc@885	2519 if (uw_Estrings) {
adamc@885	2520 strcpy(s2, "\\\\");
adamc@885	2521 s2 += 2;
adamc@885	2522 } else
adamc@885	2523 *s2++ = '\\';
adamc@280	2524 break;
adamc@280	2525 default:
adamc@1150	2526 if (isprint((int)c))
adamc@280	2527 *s2++ = c;
adamc@879	2528 else if (uw_Estrings) {
adam@1857	2529 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2530 s2 += 4;
adamc@280	2531 }
adamc@879	2532 else
adam@1689	2533 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2534 }
adamc@280	2535 }
adamc@280	2536
adamc@879	2537 *s2++ = '\'';
adamc@879	2538 strcpy(s2, uw_sqlsuffixString);
adamc@879	2539 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2540 return r;
adamc@280	2541 }
adamc@281	2542
adamc@1011	2543 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2544 char r, s2;
adamc@1011	2545
adamc@1011	2546 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2547
adamc@1011	2548 r = s2 = ctx->heap.front;
adamc@1011	2549 if (uw_Estrings)
adamc@1011	2550 *s2++ = 'E';
adamc@1011	2551 *s2++ = '\'';
adamc@1011	2552
adamc@1011	2553 switch (c) {
adamc@1011	2554 case '\'':
adamc@1011	2555 if (uw_Estrings)
adamc@1011	2556 strcpy(s2, "\\'");
adamc@1011	2557 else
adamc@1011	2558 strcpy(s2, "''");
adamc@1011	2559 s2 += 2;
adamc@1011	2560 break;
adamc@1011	2561 case '\\':
adamc@1011	2562 if (uw_Estrings) {
adamc@1011	2563 strcpy(s2, "\\\\");
adamc@1011	2564 s2 += 2;
adamc@1011	2565 } else
adamc@1011	2566 *s2++ = '\\';
adamc@1011	2567 break;
adamc@1011	2568 default:
adamc@1150	2569 if (isprint((int)c))
adamc@1011	2570 *s2++ = c;
adamc@1011	2571 else if (uw_Estrings) {
adam@1857	2572 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2573 s2 += 4;
adamc@1011	2574 }
adamc@1011	2575 else
adamc@1011	2576 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2577 }
adamc@1011	2578
adamc@1011	2579 *s2++ = '\'';
adamc@1011	2580 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2581 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2582 return r;
adamc@1011	2583 }
adamc@1011	2584
adamc@879	2585 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2586
adam@1867	2587 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2588 char r, s2;
adamc@737	2589 size_t i;
adamc@737	2590
adam@1867	2591 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2592
adamc@737	2593 r = s2 = ctx->heap.front;
adamc@879	2594 if (uw_Estrings)
adamc@879	2595 *s2++ = 'E';
adam@1867	2596 else
adam@1867	2597 *s2++ = 'X';
adamc@737	2598 *s2++ = '\'';
adamc@737	2599
adamc@737	2600 for (i = 0; i < b.size; ++i) {
adam@1867	2601 unsigned char c = b.data[i];
adam@1867	2602
adam@1867	2603 if (uw_Estrings) {
adam@1867	2604 switch (c) {
adam@1867	2605 case '\'':
adamc@885	2606 strcpy(s2, "\\'");
adam@1867	2607 s2 += 2;
adam@1867	2608 break;
adam@1867	2609 case '\\':
adamc@885	2610 strcpy(s2, "\\\\\\\\");
adamc@885	2611 s2 += 4;
adam@1867	2612 break;
adam@1867	2613 default:
adam@1867	2614 if (isprint((int)c))
adam@1867	2615 *s2++ = c;
adam@1867	2616 else {
adam@1867	2617 sprintf(s2, "\\\\%03o", c);
adam@1867	2618 s2 += 5;
adam@1867	2619 }
adamc@737	2620 }
adam@1867	2621 } else {
adam@1867	2622 sprintf(s2, "%02X", c);
adam@1867	2623 s2 += 2;
adamc@737	2624 }
phurst@1981	2625 }
adamc@737	2626
adamc@879	2627 *s2++ = '\'';
adamc@879	2628 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2629 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2630 return r;
adamc@737	2631 }
adamc@737	2632
adamc@682	2633 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2634 int len;
adamc@682	2635 char *r;
adamc@682	2636 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2637
adamc@682	2638 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2639 r = ctx->heap.front;
adamc@879	2640 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2641 ctx->heap.front += len+1;
adamc@682	2642 return r;
adamc@682	2643 }
adamc@682	2644
adamc@682	2645 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2646 int len;
adamc@682	2647 char *r;
adamc@682	2648 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2649
adamc@682	2650 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2651 r = ctx->heap.front;
adamc@682	2652 sprintf(r, "%lld%n", combo, &len);
adamc@682	2653 ctx->heap.front += len+1;
adamc@682	2654 return r;
adamc@682	2655 }
adamc@682	2656
adamc@879	2657 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2658
adamc@682	2659 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2660 int len;
adamc@682	2661 char *r;
adamc@682	2662
adamc@682	2663 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2664 r = ctx->heap.front;
adamc@879	2665 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2666 ctx->heap.front += len+1;
adamc@682	2667 return r;
adamc@682	2668 }
adamc@682	2669
adamc@682	2670 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2671 int len;
adamc@682	2672 char *r;
adamc@682	2673
adamc@682	2674 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2675 r = ctx->heap.front;
adamc@682	2676 sprintf(r, "%u%n", cli, &len);
adamc@682	2677 ctx->heap.front += len+1;
adamc@682	2678 return r;
adamc@682	2679 }
adamc@682	2680
adamc@467	2681 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2682 if (s == NULL)
adamc@467	2683 return "NULL";
adamc@467	2684 else
adamc@467	2685 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2686 }
adamc@467	2687
adamc@311	2688 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2689 if (b == uw_Basis_False)
adamc@281	2690 return "FALSE";
adamc@281	2691 else
adamc@281	2692 return "TRUE";
adamc@281	2693 }
adamc@282	2694
adamc@467	2695 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2696 if (b == NULL)
adamc@467	2697 return "NULL";
adamc@467	2698 else
adamc@467	2699 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2700 }
adamc@467	2701
adamc@439	2702 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2703 size_t len;
adamc@682	2704 char r, s;
adam@1392	2705 struct tm stm = {};
adam@1392	2706 stm.tm_isdst = -1;
adamc@682	2707
adam@1365	2708 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2709 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2710 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2711 if (uw_sql_type_annotations) {
adam@1834	2712 if (t.microseconds) {
adam@1834	2713 r = uw_malloc(ctx, len + 21);
adam@1834	2714 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2715 } else {
adam@1834	2716 r = uw_malloc(ctx, len + 14);
adam@1834	2717 sprintf(r, "'%s'::timestamp", s);
adam@1834	2718 }
adam@1367	2719 } else {
adam@1834	2720 r = uw_malloc(ctx, len + 3);
adam@1834	2721 sprintf(r, "'%s'", s);
adam@1367	2722 }
adamc@682	2723 return r;
adamc@682	2724 } else
adamc@682	2725 return "<Invalid time>";
adamc@682	2726 }
adamc@682	2727
adamc@682	2728 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2729 size_t len;
adamc@439	2730 char *r;
adam@1392	2731 struct tm stm = {};
adam@1392	2732 stm.tm_isdst = -1;
adamc@439	2733
adam@1365	2734 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2735 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2736 r = ctx->heap.front;
adamc@439	2737 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2738 ctx->heap.front += len+1;
adamc@439	2739 return r;
adamc@439	2740 } else
adamc@439	2741 return "<Invalid time>";
adamc@439	2742 }
adamc@439	2743
adam@1364	2744 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2745 size_t len;
adam@1364	2746 char *r;
adam@1392	2747 struct tm stm = {};
adam@1392	2748 stm.tm_isdst = -1;
adam@1364	2749
adam@1365	2750 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2751 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2752 r = ctx->heap.front;
adam@1365	2753 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2754 ctx->heap.front += len;
adam@1365	2755 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2756 ctx->heap.front += 8;
adam@1364	2757 return r;
adam@1364	2758 } else
adam@1364	2759 return "<Invalid time>";
adam@1364	2760 }
adam@1364	2761
adamc@467	2762 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2763 if (t == NULL)
adamc@467	2764 return "NULL";
adamc@467	2765 else
adamc@467	2766 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2767 }
adamc@467	2768
adamc@311	2769 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2770 static uw_Basis_int true = 1;
adamc@311	2771 static uw_Basis_int false = 0;
adamc@282	2772
adamc@311	2773 if (b == uw_Basis_False)
adamc@282	2774 return (char *)&false;
adamc@282	2775 else
adamc@282	2776 return (char *)&true;
adamc@282	2777 }
adamc@284	2778
adamc@311	2779 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2780 int len;
adamc@284	2781 char *r;
adamc@284	2782
adamc@311	2783 uw_check_heap(ctx, INTS_MAX);
adamc@666	2784 r = ctx->heap.front;
adamc@284	2785 sprintf(r, "%lld%n", n, &len);
adamc@666	2786 ctx->heap.front += len+1;
adamc@284	2787 return r;
adamc@284	2788 }
adamc@285	2789
adamc@311	2790 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2791 int len;
adamc@285	2792 char *r;
adamc@285	2793
adamc@311	2794 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2795 r = ctx->heap.front;
adamc@285	2796 sprintf(r, "%g%n", n, &len);
adamc@666	2797 ctx->heap.front += len+1;
adamc@285	2798 return r;
adamc@285	2799 }
adamc@285	2800
adamc@821	2801 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2802 char *r = uw_malloc(ctx, 2);
adamc@821	2803 r[0] = ch;
adamc@821	2804 r[1] = 0;
adamc@821	2805 return r;
adamc@821	2806 }
adamc@821	2807
adamc@311	2808 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2809 if (b == uw_Basis_False)
adamc@285	2810 return "False";
adamc@285	2811 else
adamc@285	2812 return "True";
adamc@285	2813 }
adamc@288	2814
adam@1359	2815 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2816 size_t len;
adam@1352	2817 char *r;
adam@1392	2818 struct tm stm = {};
adam@1392	2819 stm.tm_isdst = -1;
adam@1352	2820
adam@1365	2821 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2822 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2823 r = ctx->heap.front;
adam@1352	2824 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2825 ctx->heap.front += len+1;
adam@1352	2826 return r;
adam@1352	2827 } else
adam@1352	2828 return "<Invalid time>";
adam@1352	2829 }
adam@1352	2830
adam@1629	2831 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2832 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2833 }
adam@1629	2834
adamc@311	2835 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2836 char *endptr;
adamc@311	2837 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2838
adamc@288	2839 if (s != '\0' && endptr == '\0') {
adamc@311	2840 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2841 *r = n;
adamc@288	2842 return r;
adamc@288	2843 } else
adamc@288	2844 return NULL;
adamc@288	2845 }
adamc@289	2846
adamc@311	2847 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2848 char *endptr;
adamc@311	2849 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2850
adamc@289	2851 if (s != '\0' && endptr == '\0') {
adamc@311	2852 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2853 *r = n;
adamc@289	2854 return r;
adamc@289	2855 } else
adamc@289	2856 return NULL;
adamc@289	2857 }
adamc@289	2858
adamc@821	2859 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2860 if (s[0] == 0) {
adamc@821	2861 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2862 r[0] = 0;
adamc@821	2863 return r;
adamc@821	2864 } else if (s[1] != 0)
adamc@821	2865 return NULL;
adamc@821	2866 else {
adamc@821	2867 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2868 r[0] = s[0];
adamc@821	2869 return r;
adamc@821	2870 }
adamc@821	2871 }
adamc@821	2872
adamc@311	2873 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2874 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2875 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2876
adamc@289	2877 if (!strcasecmp (s, "True"))
adamc@289	2878 return &true;
adamc@289	2879 else if (!strcasecmp (s, "False"))
adamc@289	2880 return &false;
adamc@289	2881 else
adamc@289	2882 return NULL;
adamc@289	2883 }
adamc@292	2884
adamc@436	2885 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2886 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2887 struct tm stm = {};
adam@1392	2888 stm.tm_isdst = -1;
adamc@436	2889
adamc@439	2890 if (dot) {
adamc@439	2891 *dot = 0;
adamc@439	2892 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2893 *dot = '.';
adamc@439	2894 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2895 r->seconds = mktime(&stm);
adam@1365	2896 r->microseconds = 0;
adamc@439	2897 return r;
adamc@439	2898 }
adamc@439	2899 else {
adamc@439	2900 *dot = '.';
adamc@439	2901 return NULL;
adamc@439	2902 }
adamc@436	2903 }
adamc@439	2904 else {
adam@2072	2905 if (strptime(s, ctx->app->time_format, &stm) == end) {
adamc@439	2906 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2907 r->seconds = mktime(&stm);
adam@1365	2908 r->microseconds = 0;
adamc@439	2909 return r;
adam@2072	2910 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@2072	2911 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@2072	2912 r->seconds = mktime(&stm);
adam@2072	2913 r->microseconds = 0;
adam@2072	2914 return r;
adam@2072	2915 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2916 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2917 r->seconds = mktime(&stm);
adam@1365	2918 r->microseconds = 0;
adamc@439	2919 return r;
adam@1632	2920 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2921 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2922 r->seconds = mktime(&stm);
adam@1632	2923 r->microseconds = 0;
adam@1632	2924 return r;
adamc@439	2925 }
adamc@439	2926 else
adamc@439	2927 return NULL;
adamc@439	2928 }
adamc@436	2929 }
adamc@436	2930
adam@1352	2931 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2932 char *end = strchr(s, 0);
adam@1374	2933 struct tm stm = {};
adam@1392	2934 stm.tm_isdst = -1;
adam@1352	2935
adam@1352	2936 if (strptime(s, fmt, &stm) == end) {
adam@1352	2937 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2938 r->seconds = mktime(&stm);
adam@1365	2939 r->microseconds = 0;
adam@1352	2940 return r;
adam@1352	2941 }
adam@1352	2942 else
adam@1352	2943 return NULL;
adam@1352	2944 }
adam@1352	2945
adamc@311	2946 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2947 char *endptr;
adamc@311	2948 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2949
adamc@292	2950 if (s != '\0' && endptr == '\0')
adamc@292	2951 return n;
adamc@292	2952 else
adam@1444	2953 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2954 }
adamc@293	2955
adamc@682	2956 #include <errno.h>
adamc@682	2957
adamc@678	2958 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2959 unsigned long long n;
adamc@682	2960
adamc@682	2961 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2962 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	2963 else {
adamc@682	2964 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2965 return ch;
adamc@682	2966 }
adamc@682	2967 }
adamc@682	2968
adamc@682	2969 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2970 char *endptr;
adamc@682	2971 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2972
adamc@678	2973 if (s != '\0' && endptr == '\0')
adamc@678	2974 return n;
adamc@678	2975 else
adam@1444	2976 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	2977 }
adamc@678	2978
adamc@311	2979 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2980 char *endptr;
adamc@311	2981 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2982
adamc@293	2983 if (s != '\0' && endptr == '\0')
adamc@293	2984 return n;
adamc@293	2985 else
adam@1444	2986 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2987 }
adamc@293	2988
adamc@821	2989 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2990 if (s[0] == 0)
adamc@821	2991 return 0;
adamc@821	2992 else if (s[1] != 0)
adam@1444	2993 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	2994 else
adamc@821	2995 return s[0];
adamc@821	2996 }
adamc@821	2997
adamc@311	2998 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2999 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	3000 return uw_Basis_True;
adamc@296	3001 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	3002 return uw_Basis_False;
adamc@293	3003 else
adam@1444	3004 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3005 }
adamc@436	3006
adam@1352	3007 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	3008 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	3009 struct tm stm = {};
adam@1392	3010 stm.tm_isdst = -1;
adam@1352	3011
adam@1352	3012 if (dot) {
adam@1352	3013 *dot = 0;
adam@1352	3014 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	3015 *dot = '.';
adam@1410	3016 char usec[] = "000000";
adam@1410	3017 int len = strlen(dot+1);
adam@1410	3018 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	3019 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	3020 return r;
adam@1352	3021 }
adam@1352	3022 else {
adam@1352	3023 *dot = '.';
adam@1444	3024 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3025 }
adam@1352	3026 }
adam@1352	3027 else {
adam@1352	3028 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3029 uw_Basis_time r = { mktime(&stm) };
adam@1365	3030 return r;
adam@1352	3031 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3032 uw_Basis_time r = { mktime(&stm) };
adam@1365	3033 return r;
adam@1352	3034 } else
adam@1444	3035 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3036 }
adam@1352	3037 }
adam@1352	3038
adamc@436	3039 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	3040 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	3041 struct tm stm = {};
adam@1392	3042 stm.tm_isdst = -1;
adamc@436	3043
adamc@438	3044 if (dot) {
adamc@438	3045 *dot = 0;
adamc@438	3046 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	3047 *dot = '.';
adam@1365	3048 {
adam@1365	3049 uw_Basis_time r = { mktime(&stm) };
adam@1365	3050 return r;
adam@1365	3051 }
adamc@438	3052 }
adamc@438	3053 else {
adamc@438	3054 *dot = '.';
adam@1444	3055 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3056 }
adamc@438	3057 }
adamc@438	3058 else {
adam@2072	3059 if (strptime(s, ctx->app->time_format, &stm) == end) {
adam@2072	3060 uw_Basis_time r = { mktime(&stm) };
adam@2072	3061 return r;
adam@2072	3062 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3063 uw_Basis_time r = { mktime(&stm) };
adam@1365	3064 return r;
adam@1365	3065 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3066 uw_Basis_time r = { mktime(&stm) };
adam@1365	3067 return r;
adam@1632	3068 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3069 uw_Basis_time r = { mktime(&stm) };
adam@1632	3070 return r;
adam@1365	3071 } else
adam@1444	3072 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3073 }
adamc@436	3074 }
adamc@457	3075
adam@1352	3076 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3077 char *end = strchr(s, 0);
adamc@939	3078 struct tm stm = {};
adam@1392	3079 stm.tm_isdst = -1;
adamc@939	3080
adam@1365	3081 if (strptime(s, fmt, &stm) == end) {
adam@1365	3082 uw_Basis_time r = { mktime(&stm) };
adam@1365	3083 return r;
adam@1365	3084 } else
adam@1444	3085 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3086 }
adamc@939	3087
adamc@742	3088 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3089 char *r = ctx->heap.front;
adamc@742	3090 uw_Basis_blob b = {len, r};
adamc@742	3091
adamc@742	3092 uw_check_heap(ctx, len);
adamc@742	3093
adam@1992	3094 if (s[0] == '\\' && s[1] == 'x') {
adam@1992	3095 s += 2;
adam@1992	3096
adam@1992	3097 while (*s) {
adam@1992	3098 int n;
adam@1992	3099 sscanf(s, "%02x", &n);
adam@1992	3100 *r++ = n;
adam@1992	3101 s += 2;
adam@1992	3102 }
adam@1992	3103 } else {
adam@1992	3104 while (*s) {
adam@1992	3105 if (s[0] == '\\') {
adam@1992	3106 if (s[1] == '\\') {
adam@1992	3107 *r++ = '\\';
adam@1992	3108 s += 2;
adam@1992	3109 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adam@1992	3110 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adam@1992	3111 s += 4;
adam@1992	3112 }
adam@1992	3113 else {
adam@1992	3114 *r++ = '\\';
adam@1992	3115 ++s;
adam@1992	3116 }
adam@1992	3117 } else {
adam@1992	3118 *r++ = s[0];
adamc@742	3119 ++s;
adamc@742	3120 }
adamc@742	3121 }
adamc@742	3122 }
adamc@742	3123
adamc@742	3124 b.size = r - ctx->heap.front;
adamc@742	3125 ctx->heap.front = r;
adam@1992	3126
adamc@742	3127 return b;
adamc@742	3128 }
adamc@742	3129
adam@1402	3130 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3131
adamc@463	3132 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3133 int len = strlen(c);
adamc@854	3134 char *p = ctx->outHeaders.start;
adamc@474	3135
adamc@1134	3136 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3137 char *p2;
adamc@474	3138 p += 13;
adamc@474	3139 p2 = strchr(p, '=');
adamc@474	3140
adamc@474	3141 if (p2) {
adamc@474	3142 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3143
adamc@474	3144 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3145 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3146 return NULL;
adamc@1052	3147 else {
adamc@1052	3148 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3149 memcpy(ret, p2+1, sz);
adamc@1052	3150 ret[sz] = 0;
adamc@1052	3151 return ret;
adamc@1052	3152 }
adamc@474	3153 }
adamc@474	3154 }
adamc@474	3155 }
adamc@463	3156
adamc@1134	3157 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3158 char *p2;
adamc@1051	3159
adamc@854	3160 while (1) {
adamc@1051	3161 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3162 if ((p2 = strchr(p, ';'))) {
adamc@1051	3163 size_t n = p2 - (p + len);
adamc@1051	3164 char *r = uw_malloc(ctx, n);
adamc@1051	3165 memcpy(r, p + 1 + len, n-1);
adamc@1051	3166 r[n-1] = 0;
adamc@1051	3167 return r;
adamc@1051	3168 } else
adamc@1051	3169 return p + 1 + len;
adamc@1134	3170 } else if ((p = strchr(p, ';')))
adamc@854	3171 p += 2;
adamc@463	3172 else
adamc@463	3173 return NULL;
adamc@463	3174 }
adamc@463	3175 }
adamc@792	3176
adamc@792	3177 return NULL;
adamc@457	3178 }
adamc@462	3179
adam@1877	3180 static void set_cookie(uw_context ctx) {
adam@1877	3181 if (ctx->usedSig)
adam@1877	3182 ctx->needsResig = 1;
adam@1877	3183 }
adam@1877	3184
adamc@1050	3185 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	3186 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3187 uw_write_header(ctx, c);
adamc@462	3188 uw_write_header(ctx, "=");
adamc@462	3189 uw_write_header(ctx, v);
adamc@466	3190 uw_write_header(ctx, "; path=");
adamc@466	3191 uw_write_header(ctx, prefix);
adamc@1050	3192 if (expires) {
adamc@1050	3193 char formatted[30];
adam@1392	3194 struct tm tm = {};
adam@1392	3195 tm.tm_isdst = -1;
adamc@1050	3196
adam@1365	3197 gmtime_r(&expires->seconds, &tm);
adamc@1050	3198
adamc@1050	3199 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3200
adamc@1050	3201 uw_write_header(ctx, "; expires=");
adamc@1050	3202 uw_write_header(ctx, formatted);
adamc@1050	3203 }
adamc@1050	3204 if (secure)
adamc@1050	3205 uw_write_header(ctx, "; secure");
adamc@462	3206 uw_write_header(ctx, "\r\n");
adam@1877	3207 set_cookie(ctx);
adamc@462	3208
adamc@462	3209 return uw_unit_v;
adamc@462	3210 }
adamc@667	3211
adamc@1050	3212 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3213 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3214 uw_write_header(ctx, c);
adamc@1050	3215 uw_write_header(ctx, "=; path=");
adamc@1050	3216 uw_write_header(ctx, prefix);
adamc@1052	3217 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3218 set_cookie(ctx);
adamc@1050	3219
adamc@1050	3220 return uw_unit_v;
adamc@1050	3221 }
adamc@1050	3222
adamc@1113	3223 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3224
adamc@682	3225 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3226 unsigned i;
adamc@682	3227 delta *d;
adamc@671	3228
adamc@682	3229 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3230 if (ctx->deltas[i].client == client)
adamc@682	3231 return &ctx->deltas[i];
adamc@671	3232
adamc@682	3233 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3234 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3235 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3236
adamc@682	3237 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3238 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3239 }
adamc@671	3240
adamc@682	3241 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3242 d->client = client;
adam@1369	3243 uw_buffer_reset(&d->msgs);
adamc@682	3244 return d;
adamc@671	3245 }
adamc@671	3246
adamc@668	3247 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3248 if (ctx->client == NULL)
adamc@682	3249 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3250
adamc@682	3251 return new_channel(ctx->client);
adamc@668	3252 }
adamc@668	3253
adamc@668	3254 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3255 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3256 size_t len;
adamc@682	3257 int preLen;
adamc@682	3258 char pre[INTS_MAX + 2];
adamc@668	3259
adamc@682	3260 len = strlen(msg);
adamc@682	3261
adamc@682	3262 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3263
adam@1369	3264 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3265 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3266 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3267
adamc@671	3268 return uw_unit_v;
adamc@668	3269 }
adamc@671	3270
adam@1327	3271 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3272 int i;
adamc@1131	3273 cleanup *cl;
adamc@1131	3274
adamc@1131	3275 if (ctx->client)
adamc@1131	3276 release_client(ctx->client);
adamc@1131	3277
adamc@1131	3278 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3279 cl->func(cl->arg);
adamc@1131	3280
adamc@1131	3281 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3282
adamc@1131	3283 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3284 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3285 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3286
adamc@1131	3287 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3288 if (ctx->transactionals[i].free)
adam@1327	3289 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3290
adam@1941	3291 if (ctx->app && ctx->transaction_started) {
adam@1941	3292 ctx->transaction_started = 0;
adam@1941	3293 return ctx->app->db_rollback(ctx);
adam@1941	3294 } else
adam@1941	3295 return 0;
adamc@1131	3296 }
adamc@1131	3297
adam@1956	3298 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	3299 const char uw_begin_html5[] = "<!DOCTYPE html><html>";
adam@1728	3300
adam@1877	3301 extern int uw_hash_blocksize;
adam@1877	3302
adam@1877	3303 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3304
adam@1877	3305 static char find_sig(char haystack) {
adam@1877	3306 int i;
adam@1877	3307 char *s = strstr(haystack, sig_intro);
adam@1877	3308
adam@1877	3309 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3310 return NULL;
phurst@1981	3311
adam@1877	3312 s += sizeof sig_intro - 1;
adam@1877	3313
adam@1877	3314 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3315 if (!isxdigit((int)s[i]))
adam@1877	3316 return NULL;
adam@1877	3317
adam@1877	3318 if (s[i] != '"')
adam@1877	3319 return NULL;
adam@1877	3320
adam@1877	3321 return s;
adam@1877	3322 }
adam@1877	3323
adam@2033	3324 static pthread_mutex_t message_send_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2033	3325
adam@1938	3326 int uw_commit(uw_context ctx) {
adamc@1104	3327 int i;
adam@1877	3328 char *sig;
adamc@1104	3329
adamc@1131	3330 if (uw_has_error(ctx)) {
adam@1327	3331 uw_rollback(ctx, 0);
adam@1938	3332 return 0;
adamc@1131	3333 }
adamc@1131	3334
adamc@1104	3335 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3336 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3337 if (ctx->transactionals[i].commit) {
adamc@1083	3338 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3339 if (uw_has_error(ctx)) {
adam@1327	3340 uw_rollback(ctx, 0);
adam@1938	3341 return 0;
adamc@1131	3342 }
adamc@1131	3343 }
adamc@771	3344
adam@2033	3345 // Here's an important lock to provide the abstraction that all messages from one transaction are sent as an atomic unit.
adam@2033	3346 if (ctx->used_deltas > 0)
adam@2033	3347 pthread_mutex_lock(&message_send_mutex);
adam@2033	3348
adam@2000	3349 if (ctx->transaction_started) {
adam@2000	3350 int code = ctx->app->db_commit(ctx);
adam@2000	3351
adam@2000	3352 if (code) {
adam@2033	3353 if (ctx->used_deltas > 0)
adam@2033	3354 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3355
adam@2000	3356 if (ctx->client)
adam@2000	3357 release_client(ctx->client);
adam@2000	3358
adam@2000	3359 if (code == -1) {
adam@2000	3360 // This case is for a serialization failure, which is not really an "error."
adam@2000	3361 // The transaction will restart, so we should rollback any transactionals
adam@2000	3362 // that triggered above.
adam@2000	3363
adam@2000	3364 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3365 if (ctx->transactionals[i].rollback != NULL)
adam@2000	3366 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2000	3367
adam@2000	3368 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3369 if (ctx->transactionals[i].free)
adam@2000	3370 ctx->transactionals[i].free(ctx->transactionals[i].data, 1);
adam@2000	3371
grrwlf@2030	3372 return 1;
adam@2000	3373 }
adam@2000	3374
adam@2000	3375 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3376 if (ctx->transactionals[i].free)
adam@2000	3377 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3378
adam@2000	3379 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@2000	3380 return 0;
adam@2000	3381 }
adam@2000	3382 }
adam@2000	3383
adamc@1104	3384 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3385 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3386 if (ctx->transactionals[i].commit) {
adamc@1083	3387 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3388 if (uw_has_error(ctx)) {
adam@2033	3389 if (ctx->used_deltas > 0)
adam@2033	3390 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3391
adam@2033	3392 if (ctx->client)
adam@2033	3393 release_client(ctx->client);
adam@2033	3394
adam@2033	3395 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3396 if (ctx->transactionals[i].rollback != NULL)
adam@2033	3397 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2033	3398
adam@2033	3399 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3400 if (ctx->transactionals[i].free)
adam@2033	3401 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3402
adam@1938	3403 return 0;
adamc@1131	3404 }
adamc@1131	3405 }
adamc@1131	3406
adamc@682	3407 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3408 delta *d = &ctx->deltas[i];
adamc@682	3409 client *c = find_client(d->client);
adamc@682	3410
adam@1551	3411 assert (c != NULL);
adam@1551	3412 assert(c->mode == USED);
adamc@682	3413
adam@1447	3414 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3415 }
adamc@682	3416
adam@2033	3417 if (ctx->used_deltas > 0)
adam@2033	3418 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3419
adamc@682	3420 if (ctx->client)
adamc@685	3421 release_client(ctx->client);
adamc@771	3422
adamc@1104	3423 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3424 if (ctx->transactionals[i].free)
adam@1327	3425 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3426
vshabanoff@1726	3427 uw_check(ctx, 1);
vshabanoff@1726	3428 *ctx->page.front = 0;
adam@1413	3429
adam@1956	3430 if (!ctx->returning_indirectly
adam@1956	3431 && (ctx->app->is_html5
adam@1956	3432 ? !strncmp(ctx->page.start, uw_begin_html5, sizeof uw_begin_html5 - 1)
adam@1956	3433 : !strncmp(ctx->page.start, uw_begin_xhtml, sizeof uw_begin_xhtml - 1))) {
adam@1728	3434 char *s;
adam@1728	3435
adam@1728	3436 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1956	3437 s = ctx->page.start + (ctx->app->is_html5 ? sizeof uw_begin_html5 - 1 : sizeof uw_begin_xhtml - 1);
adam@1728	3438 s = strchr(s, '<');
adam@1728	3439 if (s == NULL) {
adam@1728	3440 // Weird. Document has no tags!
adam@1728	3441
adam@1728	3442 uw_write(ctx, "<head></head><body></body>");
adam@1728	3443 uw_check(ctx, 1);
adam@1728	3444 *ctx->page.front = 0;
adam@1728	3445 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3446 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3447
adam@1729	3448 // Any freeform JavaScript to include?
adam@1729	3449 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3450 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3451 size_t lenP = lenH + 40 + len;
adam@1729	3452 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3453
adam@1729	3454 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3455 start += ctx->page.start - oldPage;
adam@1729	3456 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3457 ctx->page.front += lenP;
adam@1729	3458 memcpy(start, ctx->script_header, lenH);
adam@1729	3459 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3460 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3461 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3462 } else {
adam@1729	3463 size_t lenH = strlen(ctx->script_header);
adam@1729	3464 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3465
adam@1729	3466 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3467 start += ctx->page.start - oldPage;
adam@1729	3468 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3469 ctx->page.front += lenH;
adam@1729	3470 memcpy(start, ctx->script_header, lenH);
adam@1729	3471 }
adam@1728	3472 } else {
adam@1728	3473 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3474
adam@1729	3475 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3476 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3477 size_t lenP = lenH + 53 + len;
adam@1729	3478 char start = s, oldPage = ctx->page.start;
adam@1729	3479
adam@1729	3480 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3481 start += ctx->page.start - oldPage;
adam@1729	3482 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3483 ctx->page.front += lenP;
adam@1729	3484 memcpy(start, "<head>", 6);
adam@1729	3485 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3486 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3487 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3488 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3489 } else {
adam@1729	3490 size_t lenH = strlen(ctx->script_header);
adam@1729	3491 size_t lenP = lenH + 13;
adam@1729	3492 char start = s, oldPage = ctx->page.start;
adam@1729	3493
adam@1729	3494 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3495 start += ctx->page.start - oldPage;
adam@1729	3496 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3497 ctx->page.front += lenP;
adam@1729	3498 memcpy(start, "<head>", 6);
adam@1729	3499 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3500 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3501 }
adamc@916	3502 }
adamc@916	3503 }
adam@1877	3504
adam@1877	3505 if (ctx->needsResig) {
adam@1877	3506 sig = find_sig(ctx->page.start);
adam@1877	3507 if (sig) {
adam@1877	3508 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3509
adam@1877	3510 do {
adam@1877	3511 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3512 sig = find_sig(sig);
adam@1877	3513 } while (sig);
adam@1877	3514 }
adam@1877	3515 }
adam@1938	3516
adam@1938	3517 return 0;
adamc@671	3518 }
adamc@671	3519
adamc@683	3520
adamc@1113	3521 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3522
adam@2001	3523 int uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3524 uw_callback_with_retry free) {
adamc@771	3525 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3526 if (ctx->used_transactionals+1 > uw_transactionals_max)
adam@2001	3527 // Exceeded limit on number of transactionals.
adam@2001	3528 return -1;
adamc@1084	3529 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3530 ++ctx->n_transactionals;
adamc@771	3531 }
adamc@771	3532
adamc@771	3533 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3534 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3535 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3536 ctx->transactionals[ctx->used_transactionals++].free = free;
adam@2001	3537
adam@2001	3538 return 0;
adamc@771	3539 }
adamc@771	3540
adamc@683	3541
adamc@683	3542 // "Garbage collection"
adamc@683	3543
adamc@1121	3544 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3545 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3546
adamc@1121	3547 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3548 int r = setjmp(ctx->jmp_buf);
adamc@683	3549
adamc@1121	3550 if (r == 0)
adamc@1121	3551 uw_do_expunge(ctx, cli, data);
adamc@1121	3552 else
adamc@1121	3553 ctx->app->db_rollback(ctx);
adamc@1121	3554
adamc@1121	3555 uw_post_expunge(ctx, data);
adamc@683	3556
adamc@683	3557 return r;
adamc@683	3558 }
adamc@683	3559
adamc@683	3560 void uw_prune_clients(uw_context ctx) {
adamc@683	3561 client c, next, *prev = NULL;
adamc@683	3562 time_t cutoff;
adamc@683	3563
adamc@1094	3564 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3565
adamc@683	3566 pthread_mutex_lock(&clients_mutex);
adam@1707	3567 pruning_thread = pthread_self();
adam@1707	3568 pruning_thread_initialized = 1;
adamc@683	3569
adamc@683	3570 for (c = clients_used; c; c = next) {
adamc@683	3571 next = c->next;
adamc@683	3572 pthread_mutex_lock(&c->lock);
adamc@685	3573 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3574 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3575 if (prev)
adamc@683	3576 prev->next = next;
adamc@683	3577 else
adamc@683	3578 clients_used = next;
adamc@683	3579 while (fk == UNLIMITED_RETRY) {
adam@1941	3580 uw_reset(ctx);
adamc@1121	3581 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3582 if (fk == UNLIMITED_RETRY)
adamc@684	3583 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3584 }
adamc@684	3585 if (fk == SUCCESS)
adamc@684	3586 free_client(c);
adamc@1121	3587 else
adamc@856	3588 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3589 }
adamc@683	3590 else
adamc@683	3591 prev = c;
adamc@683	3592 pthread_mutex_unlock(&c->lock);
adamc@683	3593 }
adamc@683	3594
adamc@683	3595 pthread_mutex_unlock(&clients_mutex);
adamc@683	3596 }
adamc@687	3597
adamc@687	3598 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3599 int r = setjmp(ctx->jmp_buf);
adamc@687	3600
adamc@687	3601 if (r == 0) {
adam@1936	3602 uw_ensure_transaction(ctx);
adamc@1094	3603 ctx->app->initializer(ctx);
adamc@1094	3604 if (ctx->app->db_commit(ctx))
adamc@687	3605 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3606 }
adamc@687	3607
adamc@687	3608 return r;
adamc@687	3609 }
adamc@717	3610
adamc@1065	3611 static int url_bad(uw_Basis_string s) {
adamc@1065	3612 for (; *s; ++s)
adamc@1153	3613 if (!isgraph((int)*s))
adamc@1065	3614 return 1;
adamc@1065	3615
adamc@1065	3616 return 0;
adamc@1065	3617 }
adamc@1065	3618
adamc@717	3619 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3620 if (url_bad(s))
adamc@1065	3621 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3622 if (ctx->app->check_url(s))
adamc@770	3623 return s;
adamc@770	3624 else
adamc@770	3625 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3626 }
adamc@734	3627
adamc@770	3628 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3629 if (url_bad(s))
adamc@1065	3630 return NULL;
adamc@1094	3631 if (ctx->app->check_url(s))
adamc@770	3632 return s;
adamc@770	3633 else
adamc@770	3634 return NULL;
adamc@770	3635 }
adamc@770	3636
adam@1465	3637 static int mime_format(const char *s) {
adamc@770	3638 for (; *s; ++s)
grrwlf@2024	3639 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.' && *s != '+')
adamc@770	3640 return 0;
adamc@770	3641
adamc@770	3642 return 1;
adamc@770	3643 }
adamc@770	3644
adamc@741	3645 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3646 if (!mime_format(s))
adamc@770	3647 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3648
adamc@1094	3649 if (ctx->app->check_mime(s))
adamc@770	3650 return s;
adamc@770	3651 else
adamc@770	3652 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3653 }
adamc@770	3654
adamc@770	3655 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3656 if (!mime_format(s))
adamc@770	3657 return NULL;
adamc@770	3658
adamc@1094	3659 if (ctx->app->check_mime(s))
adamc@770	3660 return s;
adamc@770	3661 else
adamc@770	3662 return NULL;
adamc@741	3663 }
adamc@741	3664
adam@1465	3665 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3666 if (!mime_format(s))
adam@1465	3667 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3668
adam@1465	3669 if (ctx->app->check_requestHeader(s))
adam@1465	3670 return s;
adam@1465	3671 else
adam@1465	3672 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3673 }
adam@1465	3674
adam@1465	3675 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3676 if (!mime_format(s))
adam@1465	3677 return NULL;
adam@1465	3678
adam@1465	3679 if (ctx->app->check_requestHeader(s))
adam@1465	3680 return s;
adam@1465	3681 else
adam@1465	3682 return NULL;
adam@1465	3683 }
adam@1465	3684
adam@1465	3685 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3686 if (!mime_format(s))
adam@1465	3687 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3688
adam@1465	3689 if (ctx->app->check_responseHeader(s))
adam@1465	3690 return s;
adam@1465	3691 else
adam@1465	3692 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3693 }
adam@1465	3694
adam@1799	3695 static int envVar_format(const char *s) {
adam@1799	3696 for (; *s; ++s)
adam@1799	3697 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3698 return 0;
adam@1799	3699
adam@1799	3700 return 1;
adam@1799	3701 }
adam@1799	3702
adam@1465	3703 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3704 if (!envVar_format(s))
adam@1465	3705 return NULL;
adam@1465	3706
adam@1465	3707 if (ctx->app->check_responseHeader(s))
adam@1465	3708 return s;
adam@1465	3709 else
adam@1465	3710 return NULL;
adam@1465	3711 }
adam@1465	3712
adam@1799	3713 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3714 if (!envVar_format(s))
adam@1799	3715 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3716
adam@1799	3717 if (ctx->app->check_envVar(s))
adam@1799	3718 return s;
adam@1799	3719 else
adam@1799	3720 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3721 }
adam@1799	3722
adam@1799	3723 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3724 if (!mime_format(s))
adam@1799	3725 return NULL;
adam@1799	3726
adam@1799	3727 if (ctx->app->check_envVar(s))
adam@1799	3728 return s;
adam@1799	3729 else
adam@1799	3730 return NULL;
adam@1799	3731 }
adam@1799	3732
adam@1465	3733 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3734 return uw_Basis_requestHeader(ctx, name);
adam@1465	3735 }
adam@1465	3736
adam@1465	3737 static int mime_value_format(const char *s) {
adam@1465	3738 for (; *s; ++s)
adam@1465	3739 if (s == '\r' \|\| s == '\n')
adam@1465	3740 return 0;
adam@1465	3741
adam@1465	3742 return 1;
adam@1465	3743 }
adam@1465	3744
adam@1465	3745 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3746 if (!mime_value_format(value))
adam@1465	3747 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3748
adam@1465	3749 uw_write_header(ctx, name);
adam@1465	3750 uw_write_header(ctx, ": ");
adam@1465	3751 uw_write_header(ctx, value);
adam@1465	3752 uw_write_header(ctx, "\r\n");
adam@1465	3753
adam@1465	3754 return uw_unit_v;
adam@1465	3755 }
adam@1465	3756
adam@1799	3757 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1993	3758 if (ctx->get_env)
adam@1993	3759 return ctx->get_env(ctx->get_env_data, name);
adam@1993	3760 else
adam@1994	3761 return getenv(name);
adam@1799	3762 }
adam@1799	3763
adamc@734	3764 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3765 return s ? s : "";
adamc@734	3766 }
adamc@734	3767
adamc@734	3768 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3769 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3770 int i;
phurst@1981	3771
adamc@734	3772 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3773 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3774
adamc@734	3775 return r;
adamc@734	3776 }
adamc@734	3777
adam@1512	3778 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3779 * optimizations that would enable timing attacks. See:
adam@1512	3780 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3781 */
adam@1512	3782 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3783 int i, x = 0, len1 = strlen(s1);
adam@1512	3784
adam@1512	3785 if (len1 != strlen(s2)) return 0;
adam@1512	3786
adam@1512	3787 for (i = 0; i < len1; ++i) {
adam@1512	3788 __asm__ __volatile__ ("");
adam@1512	3789 x \|= s1[i] ^ s2[i];
adam@1512	3790 }
adam@1512	3791
adam@1512	3792 return x == 0;
adam@1512	3793 }
adam@1512	3794
adamc@734	3795 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3796 ctx->usedSig = 1;
adamc@1094	3797 return ctx->app->cookie_sig(ctx);
adamc@734	3798 }
adamc@737	3799
adamc@737	3800 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3801 return f.name;
adamc@737	3802 }
adamc@737	3803
adamc@740	3804 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3805 return f.type;
adamc@740	3806 }
adamc@740	3807
adamc@745	3808 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3809 return b.size;
adamc@745	3810 }
adamc@745	3811
adamc@1119	3812 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3813 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3814
adamc@1119	3815 return b;
adamc@1119	3816 }
adamc@1119	3817
adamc@737	3818 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3819 return f.data;
adamc@737	3820 }
adamc@741	3821
adam@1347	3822 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3823 return pb.type;
adam@1347	3824 }
adam@1347	3825
adam@1347	3826 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3827 return pb.data;
adam@1347	3828 }
adam@1347	3829
adam@1471	3830 static char *old_headers(uw_context ctx) {
adam@1471	3831 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3832 return NULL;
adam@1471	3833 else {
adam@1471	3834 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3835
adam@1471	3836 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3837 return NULL;
adam@1471	3838 else {
adam@1471	3839 s = strchr(s+15, '\n');
adam@1471	3840 if (s == NULL)
adam@1471	3841 return NULL;
adam@1471	3842 else
adam@1471	3843 return uw_strdup(ctx, s+1);
adam@1471	3844 }
adam@1471	3845 }
adam@1471	3846 }
adam@1471	3847
adamc@741	3848 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3849 cleanup *cl;
adamc@741	3850 int len;
adam@1471	3851 char *oldh;
adamc@741	3852
adam@1451	3853 if (!ctx->allowed_to_return_indirectly)
adam@1451	3854 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3855
adamc@1065	3856 ctx->returning_indirectly = 1;
adam@1471	3857 oldh = old_headers(ctx);
adam@1369	3858 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3859 uw_buffer_reset(&ctx->page);
adamc@741	3860
adamc@856	3861 uw_write_header(ctx, on_success);
adamc@856	3862 uw_write_header(ctx, "Content-Type: ");
adamc@741	3863 uw_write_header(ctx, mimeType);
adam@1934	3864 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369	3865 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3866 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3867 ctx->outHeaders.front += len;
adamc@1066	3868 uw_write_header(ctx, "\r\n");
adam@1471	3869 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3870
adam@1369	3871 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3872
adamc@741	3873 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3874 cl->func(cl->arg);
adamc@741	3875
adamc@741	3876 ctx->cleanup_front = ctx->cleanup;
adamc@741	3877
adamc@1065	3878 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3879 }
adamc@1065	3880
adam@2046	3881 void uw_replace_page(uw_context ctx, const char *data, size_t size) {
adam@2046	3882 uw_buffer_reset(&ctx->page);
adam@2046	3883 ctx_uw_buffer_append(ctx, "page", &ctx->page, data, size);
adam@2046	3884 }
adam@2046	3885
adam@1932	3886 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932	3887 cleanup *cl;
adam@1932	3888 int len;
adam@1932	3889 char *oldh;
adam@1932	3890
adam@1932	3891 if (!ctx->allowed_to_return_indirectly)
adam@1932	3892 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932	3893
adam@1932	3894 ctx->returning_indirectly = 1;
adam@1932	3895 oldh = old_headers(ctx);
adam@1932	3896 uw_buffer_reset(&ctx->outHeaders);
adam@1932	3897
adam@1932	3898 uw_write_header(ctx, on_success);
adam@1932	3899 uw_write_header(ctx, "Content-Type: ");
adam@1932	3900 uw_write_header(ctx, mimeType);
adam@1934	3901 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932	3902 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932	3903 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932	3904 ctx->outHeaders.front += len;
adam@1932	3905 uw_write_header(ctx, "\r\n");
adam@1932	3906 if (oldh) uw_write_header(ctx, oldh);
adam@1932	3907
adam@1932	3908 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932	3909 cl->func(cl->arg);
adam@1932	3910
adam@1932	3911 ctx->cleanup_front = ctx->cleanup;
adam@1932	3912
adam@1932	3913 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932	3914 }
adam@1932	3915
adamc@1065	3916 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3917 cleanup *cl;
adamc@1066	3918 char *s;
adam@1471	3919 char *oldh;
adamc@1065	3920
adam@1451	3921 if (!ctx->allowed_to_return_indirectly)
adam@1451	3922 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3923
adamc@1065	3924 ctx->returning_indirectly = 1;
adam@1471	3925 oldh = old_headers(ctx);
adam@1369	3926 uw_buffer_reset(&ctx->page);
adam@1369	3927 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3928 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3929 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3930 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3931
adam@1409	3932 if (on_success[0])
adam@1409	3933 uw_write_header(ctx, on_redirect);
adam@1409	3934 else
adam@1409	3935 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3936 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3937 if (s) {
adamc@1066	3938 char *s2;
adam@1409	3939 if (s[0] == '\n') ++s;
adam@1409	3940 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3941 *s2 = 0;
adamc@1066	3942 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3943 uw_write_header(ctx, s);
adamc@1066	3944 uw_write_header(ctx, "\n");
adamc@1066	3945 }
adamc@1066	3946 }
adamc@1066	3947 }
adamc@1066	3948
adamc@1065	3949 uw_write_header(ctx, "Location: ");
adamc@1065	3950 uw_write_header(ctx, url);
adamc@1065	3951 uw_write_header(ctx, "\r\n\r\n");
adam@1471	3952 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	3953
adamc@1065	3954 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3955 cl->func(cl->arg);
adamc@1065	3956
adamc@1065	3957 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3958
adamc@1065	3959 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3960 }
adamc@874	3961
adamc@874	3962 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	3963 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	3964
adamc@874	3965 for (; *s; ++s) {
adamc@874	3966 if (s[0] == '\'') {
adamc@874	3967 *r++ = '\'';
adamc@874	3968 for (++s; *s; ++s) {
adamc@874	3969 if (s[0] == '\'') {
adamc@874	3970 *r++ = '\'';
adamc@874	3971 break;
adamc@874	3972 } else if (s[0] == '\\') {
adam@1467	3973 *r++ = '\\';
adam@1467	3974 *r++ = s[1];
adam@1467	3975 ++s;
adamc@874	3976 } else
adamc@874	3977 *r++ = s[0];
adamc@874	3978 }
adamc@874	3979 if (*s == 0) break;
adam@1467	3980 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	3981 s += 3;
adamc@874	3982 else
adamc@874	3983 *r++ = s[0];
adamc@874	3984 }
adamc@874	3985
adam@1467	3986 *r = 0;
adam@1467	3987 return ret;
adamc@874	3988 }
adamc@874	3989
adamc@922	3990 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3991 va_list ap;
adamc@922	3992 size_t len = 1;
adamc@922	3993 char s, r, *s2;
phurst@1981	3994
adamc@922	3995 va_start(ap, ctx);
adamc@922	3996 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3997 len += strlen(s);
adamc@922	3998 va_end(ap);
adamc@922	3999
adamc@922	4000 r = uw_malloc(ctx, len);
adamc@922	4001 va_start(ap, ctx);
adamc@922	4002 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4003 while (*s)
adamc@922	4004 s2++ = s++;
adamc@922	4005 va_end(ap);
adamc@922	4006 *s2 = 0;
adamc@922	4007
adamc@922	4008 return r;
adamc@922	4009 }
adamc@1006	4010
adam@1365	4011 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	4012
adamc@1006	4013 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	4014 uw_Basis_time r = { time(NULL) };
adam@1365	4015 return r;
adamc@1006	4016 }
adamc@1061	4017
adam@1369	4018 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	4019 tm.seconds += n;
adam@1365	4020 return tm;
adamc@1138	4021 }
adamc@1138	4022
adam@1514	4023 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	4024 return difftime(tm2.seconds, tm1.seconds);
adam@1514	4025 }
adam@1514	4026
adam@1685	4027 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	4028 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	4029 }
adam@1685	4030
adam@1685	4031 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	4032 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	4033 }
adam@1685	4034
adam@1514	4035 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	4036 return tm.seconds;
adam@1514	4037 }
adam@1514	4038
phurst@1971	4039 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	4040 struct tm tm = { .tm_year = year - 1900, .tm_mon = month, .tm_mday = day,
adam@2015	4041 .tm_hour = hour, .tm_min = minute, .tm_sec = second,
adam@2015	4042 .tm_isdst = -1 };
phurst@1984	4043 uw_Basis_time r = { timelocal(&tm) };
phurst@1971	4044 return r;
phurst@1971	4045 }
phurst@1971	4046
phurst@1971	4047 uw_Basis_int uw_Basis_datetimeYear(uw_context ctx, uw_Basis_time time) {
phurst@1971	4048 struct tm tm;
phurst@1982	4049 localtime_r(&time.seconds, &tm);
phurst@1971	4050 return tm.tm_year + 1900;
phurst@1971	4051 }
phurst@1971	4052
phurst@1971	4053 uw_Basis_int uw_Basis_datetimeMonth(uw_context ctx, uw_Basis_time time) {
phurst@1971	4054 struct tm tm;
phurst@1982	4055 localtime_r(&time.seconds, &tm);
phurst@1971	4056 return tm.tm_mon;
phurst@1971	4057 }
phurst@1971	4058
phurst@1971	4059 uw_Basis_int uw_Basis_datetimeDay(uw_context ctx, uw_Basis_time time) {
phurst@1971	4060 struct tm tm;
phurst@1982	4061 localtime_r(&time.seconds, &tm);
phurst@1971	4062 return tm.tm_mday;
phurst@1971	4063 }
phurst@1971	4064
phurst@1971	4065 uw_Basis_int uw_Basis_datetimeHour(uw_context ctx, uw_Basis_time time) {
phurst@1971	4066 struct tm tm;
phurst@1982	4067 localtime_r(&time.seconds, &tm);
phurst@1971	4068 return tm.tm_hour;
phurst@1971	4069 }
phurst@1971	4070
phurst@1971	4071 uw_Basis_int uw_Basis_datetimeMinute(uw_context ctx, uw_Basis_time time) {
phurst@1971	4072 struct tm tm;
phurst@1982	4073 localtime_r(&time.seconds, &tm);
phurst@1971	4074 return tm.tm_min;
phurst@1971	4075 }
phurst@1971	4076
phurst@1971	4077 uw_Basis_int uw_Basis_datetimeSecond(uw_context ctx, uw_Basis_time time) {
phurst@1971	4078 struct tm tm;
phurst@1982	4079 localtime_r(&time.seconds, &tm);
phurst@1971	4080 return tm.tm_sec;
phurst@1971	4081 }
phurst@1971	4082
phurst@1973	4083 uw_Basis_int uw_Basis_datetimeDayOfWeek(uw_context ctx, uw_Basis_time time) {
phurst@1973	4084 struct tm tm;
phurst@1982	4085 localtime_r(&time.seconds, &tm);
phurst@1973	4086 return tm.tm_wday;
phurst@1973	4087 }
phurst@1971	4088
phurst@1971	4089
adamc@1061	4090 void uw_get_global(uw_context ctx, char name) {
adamc@1061	4091 int i;
adamc@1061	4092
adamc@1061	4093 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4094 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	4095 return ctx->globals[i].data;
adamc@1061	4096
adamc@1061	4097 return NULL;
adamc@1061	4098 }
adamc@1061	4099
adamc@1113	4100 size_t uw_globals_max = SIZE_MAX;
adamc@1113	4101
adamc@1061	4102 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	4103 int i;
adamc@1061	4104
adamc@1061	4105 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4106 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	4107 if (ctx->globals[i].free)
adamc@1061	4108 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	4109 ctx->globals[i].data = data;
adamc@1061	4110 ctx->globals[i].free = free;
adamc@1061	4111 return;
adamc@1061	4112 }
adamc@1089	4113
adamc@1113	4114 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	4115 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	4116
adamc@1061	4117 ++ctx->n_globals;
adamc@1061	4118 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	4119 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	4120 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	4121 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	4122 }
adamc@1061	4123
adamc@1061	4124 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	4125 return !!isalnum((int)c);
adamc@1061	4126 }
adamc@1061	4127
adamc@1061	4128 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	4129 return !!isalpha((int)c);
adamc@1061	4130 }
adamc@1061	4131
adamc@1061	4132 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	4133 return !!isblank((int)c);
adamc@1061	4134 }
adamc@1061	4135
adamc@1061	4136 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	4137 return !!iscntrl((int)c);
adamc@1061	4138 }
adamc@1061	4139
adamc@1061	4140 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4141 return !!isdigit((int)c);
adamc@1061	4142 }
adamc@1061	4143
adamc@1061	4144 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	4145 return !!isgraph((int)c);
adamc@1061	4146 }
adamc@1061	4147
adamc@1061	4148 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4149 return !!islower((int)c);
adamc@1061	4150 }
adamc@1061	4151
adamc@1061	4152 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	4153 return !!isprint((int)c);
adamc@1061	4154 }
adamc@1061	4155
adamc@1061	4156 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	4157 return !!ispunct((int)c);
adamc@1061	4158 }
adamc@1061	4159
adamc@1061	4160 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	4161 return !!isspace((int)c);
adamc@1061	4162 }
adamc@1063	4163
adamc@1061	4164 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4165 return !!isupper((int)c);
adamc@1061	4166 }
adamc@1061	4167
adamc@1061	4168 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4169 return !!isxdigit((int)c);
adamc@1061	4170 }
adamc@1061	4171
adamc@1061	4172 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4173 return tolower((int)c);
adamc@1061	4174 }
adamc@1061	4175
adamc@1061	4176 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4177 return toupper((int)c);
adamc@1061	4178 }
adamc@1066	4179
adamc@1128	4180 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	4181 return (unsigned char)c;
adamc@1128	4182 }
adamc@1128	4183
adamc@1128	4184 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	4185 return n;
adamc@1128	4186 }
adamc@1128	4187
adamc@1066	4188 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	4189 return ctx->current_url;
adamc@1066	4190 }
adamc@1066	4191
adamc@1066	4192 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	4193 ctx->current_url = s;
adamc@1066	4194 }
adamc@1114	4195
adamc@1114	4196 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	4197 ctx->deadline = n;
adamc@1114	4198 }
adamc@1114	4199
adamc@1114	4200 void uw_check_deadline(uw_context ctx) {
adamc@1114	4201 if (uw_time > ctx->deadline)
adamc@1114	4202 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	4203 }
adamc@1115	4204
adamc@1115	4205 size_t uw_database_max = SIZE_MAX;
adamc@1120	4206
adam@1389	4207 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@1389	4208 fprintf(stderr, "%s\n", s);
adam@1389	4209 return 0;
adam@1389	4210 }
adam@1389	4211
adamc@1120	4212 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
grrwlf@1997	4213 if (ctx->loggers->log_debug)
grrwlf@1997	4214 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@1334	4215 else
adam@1334	4216 fprintf(stderr, "%s\n", s);
adamc@1120	4217 return uw_unit_v;
adamc@1120	4218 }
adamc@1250	4219
adam@1933	4220 static pthread_mutex_t rand_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@1933	4221
adamc@1250	4222 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@1486	4223 uw_Basis_int ret;
adam@1933	4224 pthread_mutex_lock(&rand_mutex);
adam@1486	4225 int r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@1933	4226 pthread_mutex_unlock(&rand_mutex);
phurst@1981	4227
adam@1486	4228 if (r)
adam@1486	4229 return abs(ret);
adam@1486	4230 else
adam@1486	4231 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	4232 }
adam@1347	4233
adam@1347	4234 void uw_noPostBody(uw_context ctx) {
adam@1347	4235 ctx->hasPostBody = 0;
adam@1347	4236 }
adam@1347	4237
adam@1347	4238 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	4239 ctx->hasPostBody = 1;
adam@1347	4240 ctx->postBody = pb;
adam@1347	4241 }
adam@1347	4242
adam@1347	4243 int uw_hasPostBody(uw_context ctx) {
adam@1347	4244 return ctx->hasPostBody;
adam@1347	4245 }
adam@1347	4246
adam@1386	4247 void uw_isPost(uw_context ctx) {
adam@1386	4248 ctx->isPost = 1;
adam@1386	4249 }
adam@1386	4250
adam@1386	4251 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4252 return ctx->isPost;
adam@1386	4253 }
adam@1386	4254
adam@1485	4255 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4256 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4257 }
adam@1485	4258
adam@1370	4259 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4260 ctx->queryString = s;
adam@1370	4261 }
adam@1370	4262
adam@1370	4263 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4264 return ctx->queryString;
adam@1370	4265 }
adam@1370	4266
adam@1347	4267 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4268 if (ctx->hasPostBody)
adam@1347	4269 return ctx->postBody;
adam@1347	4270 else
adam@1347	4271 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4272 }
adam@1349	4273
adam@1349	4274 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4275 int r = setjmp(ctx->jmp_buf);
adam@1349	4276
adam@1349	4277 if (r == 0) {
adam@1936	4278 uw_ensure_transaction(ctx);
adam@1418	4279
adam@1349	4280 callback(ctx);
adam@1349	4281 }
adam@1349	4282
adam@1349	4283 return r;
adam@1349	4284 }
adam@1360	4285
adam@1360	4286 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4287 char buf[14];
adam@1397	4288 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4289 }
adam@1365	4290
adam@1365	4291 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4292 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	4293 }
adam@1365	4294
adam@1365	4295 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@2034	4296 return !!(t1.seconds < t2.seconds \|\| (t1.seconds == t2.seconds && t1.microseconds < t2.microseconds));
adam@1365	4297 }
adam@1365	4298
adam@1365	4299 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4300 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4301 }
adam@1365	4302
adam@1372	4303 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4304 struct tm stm = {};
adam@1375	4305 char *end = strchr(s, 0);
adam@1449	4306 stm.tm_isdst = -1;
adam@1375	4307
adam@1632	4308 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4309 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4310
kkallio@1448	4311 r->seconds = timegm(&stm);
adam@1373	4312 r->microseconds = 0;
adam@1373	4313
adam@1373	4314 return r;
adam@1374	4315 }
adam@1374	4316 else
adam@1373	4317 return NULL;
adam@1372	4318 }
adam@1407	4319
adam@1407	4320 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4321 int r = setjmp(ctx->jmp_buf);
adam@1407	4322
adam@1407	4323 if (ctx->app->on_error) {
adam@1407	4324 if (r == 0) {
adam@1936	4325 uw_ensure_transaction(ctx);
adam@1407	4326
adam@1409	4327 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4328 if (on_success[0])
adam@1409	4329 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4330 else
adam@1409	4331 uw_write_header(ctx, "Status: ");
adam@1409	4332 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919	4333 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1956	4334 uw_write(ctx, ctx->app->is_html5 ? uw_begin_html5 : uw_begin_xhtml);
adam@1407	4335 ctx->app->on_error(ctx, msg);
adam@1407	4336 uw_write(ctx, "</html>");
adam@1407	4337 }
adam@1407	4338
adam@1407	4339 return r;
adam@1407	4340 } else
adam@1407	4341 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4342 }
adam@1451	4343
adam@1451	4344 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4345 ctx->allowed_to_return_indirectly = 1;
adam@1451	4346 }
adam@1483	4347
adam@1556	4348 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4349 int len;
adam@1703	4350 char *r;
adam@1703	4351
adam@1703	4352 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4353 r = ctx->heap.front;
adam@1703	4354 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4355 ctx->heap.front += len+1;
adam@1703	4356 return r;
adam@1556	4357 }
adam@1571	4358
adam@1571	4359 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4360 return n;
adam@1571	4361 }
adam@1571	4362
adam@1571	4363 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4364 return ceil(n);
adam@1571	4365 }
adam@1571	4366
adam@1571	4367 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4368 return trunc(n);
adam@1571	4369 }
adam@1571	4370
adam@1571	4371 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4372 return round(n);
adam@1571	4373 }
adam@1755	4374
adam@1755	4375 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755	4376 char *p;
adam@1755	4377
adam@1755	4378 for (p = s; *p; ++p) {
adam@1755	4379 char c = *p;
adam@1801	4380 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755	4381 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4382 }
adam@1755	4383
adam@1755	4384 return s;
adam@1755	4385 }
adam@1755	4386
adam@1755	4387 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4388 char *p;
adam@1755	4389
adam@1755	4390 for (p = s; *p; ++p) {
adam@1755	4391 char c = *p;
adam@1801	4392 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4393 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4394 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4395 }
adam@1755	4396
adam@1755	4397 return s;
adam@1755	4398 }
adam@1755	4399
adam@1755	4400 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4401 char *p;
adam@1755	4402
adam@1755	4403 if (!*s)
adam@1755	4404 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4405
adam@1801	4406 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4407 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4408
adam@1755	4409 for (p = s; *p; ++p) {
adam@1755	4410 char c = *p;
adam@1801	4411 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4412 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4413 }
adam@1755	4414
adam@1755	4415 return s;
adam@1755	4416 }
adam@1787	4417
adam@1787	4418 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4419 return f.name;
adam@1787	4420 }
adam@1787	4421
adam@1787	4422 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4423 return f.value;
adam@1787	4424 }
adam@1787	4425
adam@1787	4426 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4427 return f.remaining;
adam@1787	4428 }
adam@1787	4429
adam@1787	4430 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4431 char *unurl;
adam@1787	4432 uw_Basis_postField *f;
adam@1787	4433
adam@1788	4434 if (!ctx->hasPostBody)
adam@1788	4435 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4436
adam@1788	4437 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4438 return NULL;
adam@1787	4439
adam@1787	4440 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4441 unurl = s;
adam@1787	4442 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4443 s = strchr(s, 0);
adam@1788	4444 if (!s)
adam@1788	4445 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4446 ++s;
adam@1788	4447 unurl = s;
adam@1788	4448 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4449 s = strchr(s, 0);
adam@1788	4450 if (!s)
adam@1788	4451 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4452 f->remaining = s+1;
adam@1787	4453
adam@1787	4454 return f;
adam@1787	4455 }
adam@2008	4456
adam@2008	4457 uw_Basis_string uw_Basis_blessData(uw_context ctx, uw_Basis_string s) {
adam@2008	4458 char *p = s;
adam@2008	4459
adam@2008	4460 for (; *p; ++p)
adam@2008	4461 if (!isalnum(p) && p != '-' && *p != '_')
adam@2008	4462 uw_error(ctx, FATAL, "Illegal HTML5 data-* attribute: %s", s);
adam@2008	4463
adam@2008	4464 return s;
adam@2008	4465 }
adam@2073	4466
adam@2073	4467 int uw_remoteSock(uw_context ctx) {
adam@2073	4468 return ctx->remoteSock;
adam@2073	4469 }
adam@2073	4470
adam@2073	4471 void uw_set_remoteSock(uw_context ctx, int sock) {
adam@2073	4472 ctx->remoteSock = sock;
adam@2073	4473 }

Mercurial > urweb

annotate src/c/urweb.c @ 2079:e1879ded8095