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

annotate src/c/urweb.c @ 2176:d2a98983f502

Start of support for surviving database-server restarts, for Postgres

author	Adam Chlipala <adam@chlipala.net>
date	Sat, 17 Oct 2015 10:49:25 -0400
parents	8a01e8f21de9
children	00cf8214c2e3

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
adam@2104	170 static uw_Basis_int my_rand() {
adam@2105	171 int ret, r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@2104	172 if (r)
adam@2105	173 return abs(ret);
adam@2104	174 else
adam@2104	175 return -1;
adam@2104	176 }
adam@2104	177
adamc@682	178 static client *new_client() {
adamc@667	179 client *c;
adamc@667	180
adamc@667	181 pthread_mutex_lock(&clients_mutex);
adamc@667	182
adamc@667	183 if (clients_free) {
adamc@667	184 c = clients_free;
adamc@682	185 clients_free = clients_free->next;
adamc@667	186 }
adam@1672	187 else if (n_clients >= uw_clients_max) {
adam@1672	188 pthread_mutex_unlock(&clients_mutex);
adamc@1113	189 return NULL;
adam@1672	190 } else {
adamc@667	191 ++n_clients;
adamc@667	192 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	193 c = malloc(sizeof(client));
adamc@667	194 c->id = n_clients-1;
adamc@682	195 pthread_mutex_init(&c->lock, NULL);
adamc@689	196 pthread_mutex_init(&c->pull_lock, NULL);
adam@1369	197 uw_buffer_init(uw_messages_max, &c->msgs, 0);
adamc@667	198 clients[n_clients-1] = c;
adamc@667	199 }
adamc@667	200
adamc@682	201 pthread_mutex_lock(&c->lock);
adamc@667	202 c->mode = USED;
adam@2104	203 c->pass = my_rand();
adamc@682	204 c->sock = -1;
adamc@682	205 c->last_contact = time(NULL);
adam@1369	206 uw_buffer_reset(&c->msgs);
adamc@682	207 c->n_channels = 0;
adamc@685	208 c->refcount = 0;
adamc@1121	209 c->data = uw_init_client_data();
adamc@682	210 pthread_mutex_unlock(&c->lock);
adamc@682	211
adamc@682	212 c->next = clients_used;
adamc@682	213 clients_used = c;
adamc@667	214
adamc@667	215 pthread_mutex_unlock(&clients_mutex);
adamc@667	216
adamc@667	217 return c;
adamc@667	218 }
adamc@667	219
adamc@685	220 static void use_client(client *c) {
adamc@685	221 pthread_mutex_lock(&c->lock);
adamc@685	222 ++c->refcount;
adamc@685	223 pthread_mutex_unlock(&c->lock);
adamc@689	224 pthread_mutex_lock(&c->pull_lock);
adamc@685	225 }
adamc@685	226
adamc@685	227 static void release_client(client *c) {
adamc@689	228 pthread_mutex_unlock(&c->pull_lock);
adamc@685	229 pthread_mutex_lock(&c->lock);
adamc@685	230 --c->refcount;
adamc@685	231 pthread_mutex_unlock(&c->lock);
adamc@685	232 }
adamc@685	233
adamc@856	234 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adam@1707	235 static pthread_t pruning_thread;
adam@1707	236 static int pruning_thread_initialized = 0;
adamc@667	237
adamc@682	238 static client *find_client(unsigned id) {
adamc@667	239 client *c;
adam@1708	240 int i_am_pruner = pruning_thread_initialized && pthread_equal(pruning_thread, pthread_self());
adam@1708	241
adam@1708	242 if (!i_am_pruner) pthread_mutex_lock(&clients_mutex);
adamc@667	243
adamc@667	244 if (id >= n_clients) {
adam@1708	245 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	246 return NULL;
adamc@667	247 }
adamc@667	248
adamc@667	249 c = clients[id];
adamc@667	250
adam@1708	251 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	252 return c;
adamc@668	253 }
adamc@668	254
adamc@856	255 static char *on_success = "HTTP/1.1 200 OK\r\n";
adam@1409	256 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	257
adamc@856	258 void uw_set_on_success(char *s) {
adamc@856	259 on_success = s;
adamc@856	260 }
adamc@856	261
adam@1552	262 static void chastise(int (send)(int sockfd, const void buf, ssize_t len), int sock) {
adam@1552	263 send(sock, on_success, strlen(on_success));
adam@1552	264 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1552	265 send(sock, "R", 1);
adam@1552	266 close(sock);
adam@1552	267 }
adam@1552	268
adamc@863	269 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	270 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	271 int (*close)(int fd),
adamc@864	272 void *logger_data, uw_logger log_error) {
adamc@682	273 client *c = find_client(id);
adamc@668	274
adamc@668	275 if (c == NULL) {
adam@1552	276 chastise(send, sock);
adamc@864	277 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	278 return;
adamc@667	279 }
adamc@667	280
adamc@682	281 pthread_mutex_lock(&c->lock);
adamc@671	282
adamc@682	283 if (c->mode != USED) {
adamc@682	284 pthread_mutex_unlock(&c->lock);
adam@1552	285 chastise(send, sock);
adamc@864	286 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	287 return;
adamc@667	288 }
adamc@667	289
adamc@682	290 if (pass != c->pass) {
adamc@682	291 pthread_mutex_unlock(&c->lock);
adam@1552	292 chastise(send, sock);
adamc@864	293 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	294 return;
adamc@667	295 }
adamc@667	296
adamc@682	297 if (c->sock != -1) {
adamc@863	298 c->close(c->sock);
adamc@682	299 c->sock = -1;
adamc@682	300 }
adamc@667	301
adamc@682	302 c->last_contact = time(NULL);
adamc@682	303
adam@1369	304 if (uw_buffer_used(&c->msgs) > 0) {
adamc@863	305 send(sock, on_success, strlen(on_success));
adamc@863	306 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1369	307 send(sock, c->msgs.start, uw_buffer_used(&c->msgs));
adam@1369	308 uw_buffer_reset(&c->msgs);
adamc@667	309 close(sock);
adamc@667	310 }
adamc@863	311 else {
adamc@682	312 c->sock = sock;
adamc@863	313 c->send = send;
adamc@863	314 c->close = close;
adamc@863	315 }
adamc@667	316
adamc@682	317 pthread_mutex_unlock(&c->lock);
adamc@667	318 }
adamc@667	319
adamc@682	320 static void free_client(client *c) {
adamc@682	321 c->mode = UNUSED;
adamc@682	322 c->pass = -1;
adamc@667	323
adamc@682	324 c->next = clients_free;
adamc@682	325 clients_free = c;
adamc@667	326 }
adamc@667	327
adamc@682	328 static uw_Basis_channel new_channel(client *c) {
adamc@682	329 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	330 return ch;
adamc@668	331 }
adamc@668	332
adam@1447	333 static void client_send(client c, uw_buffer msg, const char *script, int script_len) {
adamc@685	334 pthread_mutex_lock(&c->lock);
adamc@671	335
adamc@682	336 if (c->sock != -1) {
adamc@863	337 c->send(c->sock, on_success, strlen(on_success));
adamc@863	338 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1447	339 if (script_len > 0) {
adam@1447	340 c->send(c->sock, "E\n", 2);
adam@1447	341 c->send(c->sock, script, script_len);
adam@1447	342 c->send(c->sock, "\n", 1);
adam@1447	343 }
adam@1369	344 c->send(c->sock, msg->start, uw_buffer_used(msg));
adamc@863	345 c->close(c->sock);
adamc@682	346 c->sock = -1;
adam@1665	347 } else if (uw_buffer_append(&c->msgs, msg->start, uw_buffer_used(msg)))
adamc@1113	348 fprintf(stderr, "Client message buffer size exceeded");
adamc@671	349
adamc@685	350 pthread_mutex_unlock(&c->lock);
adamc@668	351 }
adamc@668	352
adamc@668	353
adamc@668	354 // Global entry points
adamc@668	355
adamc@1164	356 extern void uw_global_custom();
adamc@1104	357 extern void uw_init_crypto();
adamc@1104	358
adamc@668	359 void uw_global_init() {
adamc@668	360 clients = malloc(0);
adamc@1104	361
adamc@1164	362 uw_global_custom();
adamc@1104	363 uw_init_crypto();
adamc@1094	364 }
adamc@1094	365
adamc@1094	366 void uw_app_init(uw_app *app) {
adamc@1094	367 app->client_init();
adamc@668	368 }
adamc@668	369
adam@1332	370 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114	371
adamc@668	372
adamc@667	373 // Single-request state
adamc@667	374
adamc@323	375 typedef struct regions {
adamc@323	376 struct regions *next;
adamc@323	377 } regions;
adamc@323	378
adamc@425	379 typedef struct {
adamc@425	380 void (func)(void);
adamc@425	381 void *arg;
adamc@425	382 } cleanup;
adamc@425	383
adamc@671	384 typedef struct {
adamc@682	385 unsigned client;
adam@1369	386 uw_buffer msgs;
adamc@682	387 } delta;
adamc@671	388
adamc@737	389 typedef enum {
adamc@759	390 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	391 } input_kind;
adamc@737	392
adamc@756	393 typedef struct input {
adamc@737	394 input_kind kind;
adamc@737	395 union {
adamc@737	396 char *normal;
adamc@739	397 uw_Basis_file file;
adamc@756	398 struct {
adamc@759	399 struct input fields, parent;
adamc@756	400 } subform;
adamc@759	401 struct {
adamc@759	402 struct input entries, parent;
adamc@759	403 } subforms;
adamc@759	404 struct {
adamc@759	405 struct input fields, next, *parent;
adamc@759	406 } entry;
adamc@737	407 } data;
adamc@737	408 } input;
adamc@737	409
adamc@771	410 typedef struct {
adamc@771	411 void *data;
adam@1327	412 uw_callback commit, rollback;
adam@1327	413 uw_callback_with_retry free;
adamc@771	414 } transactional;
adamc@771	415
adamc@1061	416 typedef struct {
adamc@1061	417 char *name;
adamc@1061	418 void *data;
adamc@1061	419 void (free)(void);
adamc@1061	420 } global;
adamc@1061	421
adamc@311	422 struct uw_context {
adamc@1094	423 uw_app *app;
adam@1446	424 int id;
adamc@1094	425
adamc@854	426 char (get_header)(void , const char );
adamc@854	427 void *get_header_data;
adamc@457	428
adam@1799	429 char (get_env)(void , const char );
adam@1799	430 void *get_env_data;
adam@1799	431
adam@1369	432 uw_buffer outHeaders, page, heap, script;
adam@1451	433 int allowed_to_return_indirectly, returning_indirectly;
adamc@759	434 input inputs, subinputs, *cur_container;
adamc@1094	435 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	436
adam@1446	437 unsigned long long source_count;
adamc@562	438
adamc@272	439 void *db;
adam@1931	440 int transaction_started;
adamc@272	441
adamc@167	442 jmp_buf jmp_buf;
adamc@167	443
adamc@323	444 regions *regions;
adamc@323	445
adamc@425	446 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	447
adamc@1094	448 const char *script_header;
adamc@643	449
adam@2056	450 int needs_push, needs_sig, could_write_db, at_most_one_query;
adamc@693	451
adamc@682	452 size_t n_deltas, used_deltas;
adamc@682	453 delta *deltas;
adamc@671	454
adamc@682	455 client *client;
adamc@682	456
adamc@771	457 transactional *transactionals;
adamc@771	458 size_t n_transactionals, used_transactionals;
adamc@771	459
adamc@1061	460 global *globals;
adamc@1061	461 size_t n_globals;
adamc@1061	462
adamc@1066	463 char *current_url;
adamc@1066	464
adamc@1114	465 int deadline;
adamc@1114	466
adamc@1121	467 void *client_data;
adamc@1121	468
grrwlf@1997	469 uw_loggers *loggers;
adam@1334	470
adam@1386	471 int isPost, hasPostBody;
adam@1347	472 uw_Basis_postBody postBody;
adam@1370	473 uw_Basis_string queryString;
adam@1347	474
adam@1556	475 unsigned nextId;
adam@1556	476
adam@1782	477 int amInitializing;
adam@1782	478
adamc@167	479 char error_message[ERROR_BUF_LEN];
adam@1877	480
adam@1877	481 int usedSig, needsResig;
adam@1949	482
adam@1949	483 char *output_buffer;
adam@1949	484 size_t output_buffer_size;
adam@2073	485
adam@2073	486 int remoteSock;
adamc@117	487 };
adamc@117	488
adamc@1113	489 size_t uw_headers_max = SIZE_MAX;
adamc@1113	490 size_t uw_page_max = SIZE_MAX;
adamc@1113	491 size_t uw_heap_max = SIZE_MAX;
adamc@1113	492 size_t uw_script_max = SIZE_MAX;
adamc@1113	493
grrwlf@1997	494 uw_context uw_init(int id, uw_loggers *lg) {
adamc@311	495 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	496
adamc@1094	497 ctx->app = NULL;
adam@1446	498 ctx->id = id;
adamc@1094	499
adamc@854	500 ctx->get_header = NULL;
adamc@854	501 ctx->get_header_data = NULL;
adamc@457	502
adam@1799	503 ctx->get_env = NULL;
adam@1799	504 ctx->get_env_data = NULL;
adam@1799	505
adam@1413	506 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413	507 ctx->outHeaders.start[0] = 0;
adam@1413	508 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413	509 ctx->page.start[0] = 0;
adam@1451	510 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	511 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369	512 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667	513 ctx->script.start[0] = 0;
adamc@136	514
adamc@1094	515 ctx->inputs = malloc(0);
adamc@759	516 ctx->cur_container = NULL;
adamc@756	517 ctx->subinputs = malloc(0);
adamc@1094	518 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	519
adamc@272	520 ctx->db = NULL;
adam@1931	521 ctx->transaction_started = 0;
adamc@272	522
adamc@323	523 ctx->regions = NULL;
adamc@323	524
adamc@425	525 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	526
adamc@643	527 ctx->script_header = "";
adamc@693	528 ctx->needs_push = 0;
adamc@736	529 ctx->needs_sig = 0;
adam@1936	530 ctx->could_write_db = 1;
adam@2056	531 ctx->at_most_one_query = 0;
adamc@1104	532
adamc@565	533 ctx->source_count = 0;
adamc@562	534
adamc@682	535 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	536 ctx->deltas = malloc(0);
adamc@671	537
adamc@700	538 ctx->client = NULL;
adamc@700	539
adamc@700	540 ctx->error_message[0] = 0;
adamc@700	541
adamc@771	542 ctx->transactionals = malloc(0);
adamc@771	543 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	544
adamc@1061	545 ctx->globals = malloc(0);
adamc@1061	546 ctx->n_globals = 0;
adamc@1061	547
adamc@1066	548 ctx->current_url = "";
adamc@1066	549
adamc@1114	550 ctx->deadline = INT_MAX;
adamc@1114	551
adamc@1121	552 ctx->client_data = uw_init_client_data();
adamc@1121	553
grrwlf@1997	554 ctx->loggers = lg;
adam@1334	555
adam@1386	556 ctx->isPost = ctx->hasPostBody = 0;
adam@1347	557
adam@1370	558 ctx->queryString = NULL;
adam@1370	559
adam@1556	560 ctx->nextId = 0;
adam@1556	561
adam@1782	562 ctx->amInitializing = 0;
adam@1782	563
adam@1877	564 ctx->usedSig = 0;
adam@1877	565 ctx->needsResig = 0;
adam@1877	566
adam@1949	567 ctx->output_buffer = malloc(1);
adam@1949	568 ctx->output_buffer_size = 1;
adam@1949	569
adam@2073	570 ctx->remoteSock = -1;
adam@2073	571
adamc@117	572 return ctx;
adamc@106	573 }
adamc@106	574
adamc@1113	575 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	576
adamc@1121	577 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	578 return ctx->app;
adamc@1121	579 }
adamc@1121	580
adamc@1113	581 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	582 ctx->app = app;
adamc@1094	583
adamc@1105	584 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	585 if (app->inputs_len > uw_inputs_max)
adamc@1113	586 return 1;
adamc@1113	587
adamc@1094	588 ctx->sz_inputs = app->inputs_len;
adamc@1094	589 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	590 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	591 }
adamc@1134	592
adamc@1134	593 return 0;
adamc@1094	594 }
adamc@1094	595
adamc@1121	596 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	597 uw_copy_client_data(ctx->client_data, data);
adamc@1121	598 }
adamc@1121	599
adamc@311	600 void uw_set_db(uw_context ctx, void *db) {
adamc@272	601 ctx->db = db;
adamc@272	602 }
adamc@272	603
adamc@311	604 void *uw_get_db(uw_context ctx) {
adamc@272	605 return ctx->db;
adamc@272	606 }
adamc@272	607
grrwlf@1997	608
grrwlf@1997	609 uw_loggers* uw_get_loggers(struct uw_context *ctx) {
grrwlf@1997	610 return ctx->loggers;
grrwlf@1997	611 }
grrwlf@1997	612
adamc@311	613 void uw_free(uw_context ctx) {
adamc@671	614 size_t i;
adamc@671	615
adam@1369	616 uw_buffer_free(&ctx->outHeaders);
adam@1369	617 uw_buffer_free(&ctx->script);
adam@1369	618 uw_buffer_free(&ctx->page);
adam@1369	619 uw_buffer_free(&ctx->heap);
adamc@144	620 free(ctx->inputs);
adamc@756	621 free(ctx->subinputs);
adamc@425	622 free(ctx->cleanup);
adamc@771	623 free(ctx->transactionals);
adamc@1121	624 uw_free_client_data(ctx->client_data);
adamc@671	625
adamc@682	626 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	627 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	628 free(ctx->deltas);
adamc@671	629
adamc@1061	630 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	631 if (ctx->globals[i].free)
adamc@1089	632 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	633 free(ctx->globals);
adamc@1061	634
adam@1949	635 free(ctx->output_buffer);
adam@1949	636
adamc@136	637 free(ctx);
adamc@136	638 }
adamc@136	639
adamc@562	640 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	641 uw_buffer_reset(&ctx->outHeaders);
adam@1369	642 uw_buffer_reset(&ctx->script);
adamc@667	643 ctx->script.start[0] = 0;
adam@1369	644 uw_buffer_reset(&ctx->page);
adam@1451	645 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	646 uw_buffer_reset(&ctx->heap);
adamc@323	647 ctx->regions = NULL;
adamc@425	648 ctx->cleanup_front = ctx->cleanup;
adamc@682	649 ctx->used_deltas = 0;
adamc@682	650 ctx->client = NULL;
adamc@759	651 ctx->cur_container = NULL;
adamc@771	652 ctx->used_transactionals = 0;
adamc@1117	653 ctx->script_header = "";
adam@1370	654 ctx->queryString = NULL;
adam@1556	655 ctx->nextId = 0;
adam@1782	656 ctx->amInitializing = 0;
adam@1877	657 ctx->usedSig = 0;
adam@1877	658 ctx->needsResig = 0;
adam@2073	659 ctx->remoteSock = -1;
adamc@167	660 }
adamc@167	661
adamc@562	662 void uw_reset_keep_request(uw_context ctx) {
adamc@562	663 uw_reset_keep_error_message(ctx);
adamc@562	664 ctx->error_message[0] = 0;
adamc@167	665 }
adamc@167	666
adamc@311	667 void uw_reset(uw_context ctx) {
adamc@311	668 uw_reset_keep_request(ctx);
adamc@1105	669 if (ctx->app)
adamc@1105	670 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	671 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461	672 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adam@1943	673 ctx->transaction_started = 0;
adamc@144	674 }
adamc@144	675
adamc@311	676 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	677 int r = setjmp(ctx->jmp_buf);
adamc@272	678
adamc@1105	679 if (r == 0 && ctx->app)
adamc@1094	680 ctx->app->db_init(ctx);
adamc@272	681
adamc@272	682 return r;
adamc@272	683 }
adamc@272	684
adamc@1118	685 void uw_close(uw_context ctx) {
adamc@1118	686 ctx->app->db_close(ctx);
adamc@1118	687 }
adamc@1118	688
adam@1446	689 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	690 return ctx->get_header(ctx->get_header_data, h);
adam@1446	691 }
adam@1446	692
adamc@854	693 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	694 ctx->get_header = get_header;
adamc@854	695 ctx->get_header_data = get_header_data;
adamc@742	696 }
adamc@742	697
adam@1799	698 void uw_set_env(uw_context ctx, char (get_env)(void , const char ), void *get_env_data) {
adam@1799	699 ctx->get_env = get_env;
adam@1799	700 ctx->get_env_data = get_env_data;
adam@1799	701 }
adam@1799	702
adamc@801	703 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	704 va_list ap;
adamc@801	705 va_start(ap, fmt);
adamc@801	706
adamc@801	707 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	708 }
adamc@801	709
adamc@1131	710 int uw_has_error(uw_context ctx) {
adamc@1131	711 return ctx->error_message[0] != 0;
adamc@1131	712 }
adamc@1131	713
adamc@311	714 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	715 cleanup *cl;
adamc@425	716
adamc@167	717 va_list ap;
adamc@167	718 va_start(ap, fmt);
adamc@167	719
adamc@167	720 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	721
adamc@425	722 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	723 cl->func(cl->arg);
adamc@425	724
adamc@425	725 ctx->cleanup_front = ctx->cleanup;
adamc@425	726
adamc@190	727 longjmp(ctx->jmp_buf, fk);
adamc@167	728 }
adamc@167	729
adamc@1113	730 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	731
adamc@425	732 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	733 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	734 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	735 if (len == 0)
adamc@425	736 newLen = 1;
adamc@425	737 else
adamc@428	738 newLen = len * 2;
adamc@1113	739
adamc@1134	740 if (newLen > uw_cleanup_max) {
adamc@1113	741 if (len+1 <= uw_cleanup_max)
adamc@1113	742 newLen = uw_cleanup_max;
adamc@1113	743 else
adamc@1113	744 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	745 }
adamc@1113	746
adamc@470	747 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	748 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	749 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	750 }
adamc@425	751
adamc@425	752 ctx->cleanup_front->func = func;
adamc@425	753 ctx->cleanup_front->arg = arg;
adamc@425	754 ++ctx->cleanup_front;
adamc@425	755 }
adamc@425	756
adam@1444	757 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	758
adamc@682	759 void uw_login(uw_context ctx) {
adam@1942	760 char id_s, pass_s;
adam@1942	761
adam@1942	762 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adam@1942	763 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adam@1942	764 unsigned id = atoi(id_s);
adam@1942	765 int pass = atoi(pass_s);
adam@1942	766 client *c = find_client(id);
adam@1942	767
adam@1942	768 if (c == NULL)
adam@1942	769 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	770 else {
adamc@685	771 use_client(c);
adamc@682	772 ctx->client = c;
adam@1942	773
adam@1942	774 if (c->mode != USED)
adam@1942	775 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adam@1942	776 if (c->pass != pass)
adam@1942	777 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@864	778 }
adam@1942	779 } else if (ctx->needs_push) {
adam@1942	780 client *c = new_client();
adam@1942	781
adam@1942	782 if (c == NULL)
adam@1942	783 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adam@1942	784
adam@1942	785 use_client(c);
adam@1942	786 uw_copy_client_data(c->data, ctx->client_data);
adam@1942	787 ctx->client = c;
adamc@682	788 }
adamc@682	789 }
adamc@682	790
adamc@671	791 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	792 int r = setjmp(ctx->jmp_buf);
adamc@671	793
adam@1931	794 if (r == 0)
adam@1931	795 ctx->app->handle(ctx, path);
adam@1931	796
adam@1931	797 return r;
adam@1931	798 }
adam@1931	799
adam@2176	800 static void uw_try_reconnecting(uw_context ctx) {
adam@2176	801 // Hm, error starting transaction.
adam@2176	802 // Maybe the database server died but has since come back up.
adam@2176	803 // Let's try starting from scratch.
adam@2176	804 if (ctx->db) {
adam@2176	805 ctx->app->db_close(ctx);
adam@2176	806 ctx->db = NULL;
adam@2176	807 }
adam@2176	808 ctx->app->db_init(ctx);
adam@2176	809
adam@2176	810 if (!ctx->db)
adam@2176	811 uw_error(ctx, FATAL, "Error reopening database connection");
adam@2176	812 }
adam@2176	813
adam@2176	814 int uw_try_reconnecting_if_at_most_one(uw_context ctx) {
adam@2176	815 if (ctx->at_most_one_query) {
adam@2176	816 uw_try_reconnecting(ctx);
adam@2176	817 return 1;
adam@2176	818 } else
adam@2176	819 return 0;
adam@2176	820 }
adam@2176	821
adam@1931	822 void uw_ensure_transaction(uw_context ctx) {
adam@2056	823 if (!ctx->transaction_started && !ctx->at_most_one_query) {
adam@2176	824 if (!ctx->db \|\| ctx->app->db_begin(ctx, ctx->could_write_db)) {
adam@2176	825 uw_try_reconnecting(ctx);
adam@2176	826
adam@2176	827 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adam@2176	828 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adam@2176	829 }
adam@2176	830
adam@1931	831 ctx->transaction_started = 1;
adamc@671	832 }
adamc@671	833 }
adamc@671	834
adamc@772	835 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	836 if (ctx->client == NULL)
adamc@682	837 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	838
adamc@682	839 return ctx->client->id;
adamc@682	840 }
adamc@682	841
adamc@425	842 void uw_pop_cleanup(uw_context ctx) {
adamc@425	843 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	844 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	845
adamc@425	846 --ctx->cleanup_front;
adamc@425	847 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	848 }
adamc@425	849
adamc@311	850 char *uw_error_message(uw_context ctx) {
adamc@167	851 return ctx->error_message;
adamc@167	852 }
adamc@167	853
adamc@1115	854 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	855 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	856 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	857 }
adamc@1115	858
adamc@759	859 static input *INP(uw_context ctx) {
adamc@759	860 if (ctx->cur_container == NULL)
adamc@759	861 return ctx->inputs;
adamc@759	862 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	863 return ctx->cur_container->data.subform.fields;
adamc@759	864 else if (ctx->cur_container->kind == ENTRY)
adamc@759	865 return ctx->cur_container->data.entry.fields;
adamc@759	866 else
adamc@760	867 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	868 }
adamc@759	869
adamc@760	870 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	871 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	872 *ptr += new_start - old_start;
adamc@760	873 }
adamc@760	874
adamc@760	875 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	876 switch (x->kind) {
adamc@759	877 case SUBFORM:
adamc@760	878 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	879 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	880 break;
adamc@759	881 case SUBFORMS:
adamc@760	882 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	883 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	884 break;
adamc@759	885 case ENTRY:
adamc@760	886 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	887 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	888 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	889 break;
adamc@1134	890 default:
adamc@1134	891 break;
phurst@1981	892 }
adamc@759	893 }
adamc@759	894
adamc@1113	895 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	896
adamc@759	897 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	898 size_t i;
adamc@759	899 input *r;
adamc@759	900
adamc@759	901 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	902 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	903 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	904
adamc@759	905 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	906
adamc@760	907 if (ctx->subinputs != new_subinputs) {
adamc@760	908 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	909 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	910 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	911 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	912
adamc@760	913 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	914
adamc@760	915 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	916 ctx->subinputs = new_subinputs;
adamc@760	917 }
adamc@759	918 }
adamc@759	919
adamc@759	920 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	921
adamc@759	922 for (i = 0; i < len; ++i)
adam@1474	923 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	924
adamc@759	925 return r;
adamc@759	926 }
adamc@756	927
adamc@801	928 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	929 //printf("Input name %s\n", name);
adamc@1038	930
adamc@756	931 if (!strcasecmp(name, ".b")) {
adamc@1094	932 int n = ctx->app->input_num(value);
adamc@756	933 input *inps;
adamc@756	934
adamc@801	935 if (n < 0) {
adam@1444	936 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	937 return -1;
adamc@801	938 }
adamc@801	939
adamc@1094	940 if (n >= ctx->app->inputs_len) {
adam@1444	941 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	942 return -1;
adamc@801	943 }
adamc@756	944
adamc@1094	945 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	946
adamc@759	947 INP(ctx)[n].kind = SUBFORM;
adamc@759	948 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	949 INP(ctx)[n].data.subform.fields = inps;
adamc@759	950 ctx->cur_container = &INP(ctx)[n];
adamc@756	951 } else if (!strcasecmp(name, ".e")) {
adamc@756	952 input *tmp;
adamc@756	953
adamc@801	954 if (ctx->cur_container == NULL) {
adamc@801	955 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	956 return -1;
adamc@801	957 }
adamc@756	958
adamc@759	959 tmp = ctx->cur_container;
adamc@759	960 switch (tmp->kind) {
adamc@759	961 case SUBFORM:
adamc@759	962 ctx->cur_container = tmp->data.subform.parent;
adamc@759	963 tmp->data.subform.parent = NULL;
adamc@759	964 break;
adamc@759	965 case SUBFORMS:
adamc@759	966 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	967 tmp->data.subforms.parent = NULL;
adamc@759	968 break;
adamc@759	969 case ENTRY:
adamc@759	970 ctx->cur_container = tmp->data.entry.parent;
adamc@759	971 break;
adamc@759	972 default:
adamc@801	973 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	974 return -1;
adamc@759	975 }
adamc@759	976 } else if (!strcasecmp(name, ".s")) {
adamc@1094	977 int n = ctx->app->input_num(value);
adamc@759	978
adamc@801	979 if (n < 0) {
adam@1444	980 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	981 return -1;
adamc@801	982 }
adamc@801	983
adamc@1094	984 if (n >= ctx->app->inputs_len) {
adam@1444	985 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	986 return -1;
adamc@801	987 }
adamc@759	988
adamc@759	989 INP(ctx)[n].kind = SUBFORMS;
adamc@759	990 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	991 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	992 ctx->cur_container = &INP(ctx)[n];
adamc@759	993 } else if (!strcasecmp(name, ".i")) {
adamc@759	994 input *inps;
adamc@759	995
adamc@801	996 if (!ctx->cur_container) {
adamc@801	997 uw_set_error(ctx, "New entry without container");
adamc@801	998 return -1;
adamc@801	999 }
adamc@801	1000
adamc@801	1001 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	1002 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	1003 return -1;
adamc@801	1004 }
adamc@759	1005
adamc@1094	1006 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	1007
adamc@759	1008 inps->kind = ENTRY;
adamc@759	1009 inps->data.entry.parent = ctx->cur_container;
adamc@759	1010 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	1011 ctx->cur_container->data.subforms.entries = inps;
adamc@759	1012
adamc@759	1013 inps->data.entry.fields = inps+1;
adamc@759	1014 ctx->cur_container = inps;
adamc@756	1015 } else {
adamc@1094	1016 int n = ctx->app->input_num(name);
adamc@756	1017
adam@1384	1018 if (n < 0)
adam@1384	1019 return 0;
adamc@801	1020
adamc@1094	1021 if (n >= ctx->app->inputs_len) {
adam@1444	1022 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	1023 return -1;
adamc@801	1024 }
adamc@756	1025
adamc@756	1026 INP(ctx)[n].kind = NORMAL;
adamc@756	1027 INP(ctx)[n].data.normal = value;
adamc@756	1028 }
adamc@801	1029
adamc@801	1030 return 0;
adamc@144	1031 }
adamc@144	1032
adamc@311	1033 char *uw_get_input(uw_context ctx, int n) {
adamc@169	1034 if (n < 0)
adamc@311	1035 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1036 if (n >= ctx->app->inputs_len)
adamc@311	1037 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1038
adamc@756	1039 switch (INP(ctx)[n].kind) {
adamc@737	1040 case UNSET:
adamc@737	1041 return NULL;
adamc@739	1042 case FIL:
adamc@739	1043 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1044 case SUBFORM:
adamc@756	1045 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1046 case SUBFORMS:
adamc@759	1047 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1048 case ENTRY:
adamc@759	1049 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1050 case NORMAL:
adamc@756	1051 return INP(ctx)[n].data.normal;
adamc@737	1052 default:
adamc@737	1053 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1054 }
adamc@138	1055 }
adamc@138	1056
adamc@311	1057 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	1058 if (n < 0)
adamc@311	1059 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1060 if (n >= ctx->app->inputs_len)
adamc@311	1061 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1062
adamc@756	1063 switch (INP(ctx)[n].kind) {
adamc@737	1064 case UNSET:
adamc@737	1065 return "";
adamc@739	1066 case FIL:
adamc@739	1067 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1068 case SUBFORM:
adamc@756	1069 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1070 case SUBFORMS:
adamc@759	1071 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1072 case ENTRY:
adamc@759	1073 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1074 case NORMAL:
adamc@756	1075 return INP(ctx)[n].data.normal;
adamc@737	1076 default:
adamc@737	1077 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1078 }
adamc@737	1079 }
adamc@737	1080
adamc@801	1081 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1082 int n = ctx->app->input_num(name);
adamc@737	1083
adamc@801	1084 if (n < 0) {
adam@2054	1085 uw_set_error(ctx, "Bad file input name");
adamc@801	1086 return -1;
adamc@801	1087 }
adamc@801	1088
adamc@1094	1089 if (n >= ctx->app->inputs_len) {
adam@2054	1090 uw_set_error(ctx, "For file input name, index %d is out of range", n);
adamc@801	1091 return -1;
adamc@801	1092 }
adamc@737	1093
adamc@739	1094 ctx->inputs[n].kind = FIL;
adamc@739	1095 ctx->inputs[n].data.file = f;
adamc@801	1096
adamc@801	1097 return 0;
adamc@737	1098 }
adamc@737	1099
adamc@739	1100 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1101
adamc@739	1102 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1103 if (n < 0)
adamc@737	1104 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1105 if (n >= ctx->app->inputs_len)
adamc@737	1106 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1107
adamc@756	1108 switch (INP(ctx)[n].kind) {
adamc@737	1109 case UNSET:
adamc@737	1110 {
adamc@739	1111 char *data = uw_malloc(ctx, 0);
adamc@740	1112 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1113 return f;
adamc@737	1114 }
adamc@739	1115 case FIL:
adamc@756	1116 return INP(ctx)[n].data.file;
adamc@737	1117 case NORMAL:
adamc@737	1118 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1119 case SUBFORM:
adamc@756	1120 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1121 case SUBFORMS:
adamc@759	1122 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1123 case ENTRY:
adamc@759	1124 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1125 default:
adamc@737	1126 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1127 }
adamc@190	1128 }
adamc@190	1129
adamc@756	1130 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1131 if (n < 0)
adamc@756	1132 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1133 if (n >= ctx->app->inputs_len)
adamc@756	1134 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1135
adamc@756	1136 switch (INP(ctx)[n].kind) {
adamc@756	1137 case UNSET:
adamc@756	1138 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1139 case FIL:
adamc@756	1140 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1141 case NORMAL:
adamc@756	1142 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1143 case SUBFORMS:
adamc@759	1144 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1145 case ENTRY:
adamc@759	1146 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1147 case SUBFORM:
adamc@759	1148 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1149 ctx->cur_container = &INP(ctx)[n];
adamc@756	1150 return;
adamc@756	1151 default:
adamc@756	1152 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1153 }
adamc@756	1154 }
adamc@756	1155
adamc@756	1156 void uw_leave_subform(uw_context ctx) {
adamc@756	1157 input *tmp;
adamc@756	1158
adamc@759	1159 if (ctx->cur_container == NULL)
adamc@756	1160 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1161
adamc@759	1162 tmp = ctx->cur_container;
adamc@759	1163 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1164 tmp->data.subform.parent = NULL;
adamc@759	1165 }
adamc@759	1166
adamc@759	1167 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1168 input *inps;
adamc@759	1169
adamc@759	1170 if (n < 0)
adamc@759	1171 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1172 if (n >= ctx->app->inputs_len)
adamc@759	1173 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1174
adamc@759	1175 switch (INP(ctx)[n].kind) {
adamc@759	1176 case UNSET:
adamc@759	1177 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1178 case FIL:
adamc@759	1179 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1180 case NORMAL:
adamc@759	1181 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1182 case SUBFORM:
adamc@759	1183 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1184 case ENTRY:
adamc@759	1185 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1186 case SUBFORMS:
adamc@759	1187 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1188 if (inps) {
adamc@759	1189 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1190 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1191 return 1;
adamc@759	1192 } else
adamc@759	1193 return 0;
adamc@759	1194 default:
adamc@759	1195 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1196 }
adamc@759	1197 }
adamc@759	1198
adamc@759	1199 int uw_next_entry(uw_context ctx) {
adamc@759	1200 if (ctx->cur_container == NULL)
adamc@759	1201 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1202
adamc@759	1203 switch (ctx->cur_container->kind) {
adamc@759	1204 case UNSET:
adamc@759	1205 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1206 case FIL:
adamc@759	1207 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1208 case NORMAL:
adamc@759	1209 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1210 case SUBFORM:
adamc@759	1211 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1212 case SUBFORMS:
adamc@759	1213 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1214 case ENTRY:
adamc@759	1215 if (ctx->cur_container->data.entry.next) {
adamc@759	1216 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1217 return 1;
adamc@759	1218 } else {
adamc@759	1219 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1220 return 0;
adamc@759	1221 }
adamc@759	1222 default:
adamc@759	1223 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1224 }
adamc@756	1225 }
adamc@756	1226
adamc@643	1227 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1228 ctx->script_header = s;
adamc@643	1229 }
adamc@643	1230
adamc@1094	1231 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1232 return ctx->app->url_prefix;
adamc@667	1233 }
adamc@667	1234
adamc@693	1235 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1236 ctx->needs_push = n;
adamc@693	1237 }
adamc@693	1238
adamc@736	1239 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1240 ctx->needs_sig = n;
adamc@736	1241 }
adamc@736	1242
adam@1936	1243 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936	1244 ctx->could_write_db = n;
adam@1936	1245 }
adam@1936	1246
adam@2056	1247 void uw_set_at_most_one_query(uw_context ctx, int n) {
adam@2056	1248 ctx->at_most_one_query = n;
adam@2056	1249 }
adam@2056	1250
adamc@667	1251
adam@1369	1252 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1253 if (b->back - b->front < extra) {
adamc@666	1254 size_t desired = b->front - b->start + extra, next;
adamc@136	1255 char *new_heap;
adamc@136	1256
adamc@666	1257 next = b->back - b->start;
adamc@317	1258 if (next == 0)
adamc@317	1259 next = 1;
adamc@317	1260 for (; next < desired; next *= 2);
adamc@136	1261
adamc@1134	1262 if (next > b->max) {
adamc@1113	1263 if (desired <= b->max)
adamc@1113	1264 next = desired;
adamc@1113	1265 else
adamc@1113	1266 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1267 }
adamc@1113	1268
adamc@666	1269 new_heap = realloc(b->start, next);
adamc@666	1270 b->front = new_heap + (b->front - b->start);
adamc@666	1271 b->back = new_heap + next;
adamc@136	1272
adamc@667	1273 if (new_heap != b->start) {
adamc@666	1274 b->start = new_heap;
adam@1389	1275 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1276 }
adamc@136	1277
adamc@666	1278 b->start = new_heap;
adamc@136	1279 }
adamc@136	1280 }
adamc@136	1281
adamc@832	1282 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1283 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1284 }
adamc@666	1285
adamc@832	1286 char *uw_heap_front(uw_context ctx) {
adamc@832	1287 return ctx->heap.front;
adamc@832	1288 }
adamc@832	1289
adamc@832	1290 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1291 ctx->heap.front = fr;
adamc@832	1292 }
adamc@832	1293
adam@1782	1294 void uw_begin_initializing(uw_context ctx) {
adam@1782	1295 ctx->amInitializing = 1;
adam@1782	1296 }
adam@1782	1297
adam@1782	1298 void uw_end_initializing(uw_context ctx) {
adam@1782	1299 ctx->amInitializing = 0;
adam@1782	1300 }
adam@1782	1301
adam@2013	1302 static void align_heap(uw_context ctx) {
adam@2013	1303 size_t posn = ctx->heap.front - ctx->heap.start;
adam@2013	1304
adam@2017	1305 if (posn % sizeof(void *) != 0) {
adam@2017	1306 size_t bump = sizeof(void ) - posn % sizeof(void );
adam@2013	1307 uw_check_heap(ctx, bump);
adam@2013	1308 ctx->heap.front += bump;
adam@2013	1309 }
adam@2013	1310 }
adam@2013	1311
adamc@311	1312 void *uw_malloc(uw_context ctx, size_t len) {
adam@2013	1313 // On some architectures, it's important that all word-sized memory accesses
adam@2013	1314 // be to word-aligned addresses, so we'll do a little bit of extra work here
adam@2013	1315 // in anticipation of a possible word-aligned access to the address we'll
adam@2013	1316 // return.
adam@2013	1317
adamc@136	1318 void *result;
adamc@136	1319
adam@1782	1320 if (ctx->amInitializing) {
adam@2017	1321 int error = posix_memalign(&result, sizeof(void *), len);
adam@2013	1322
adam@2013	1323 if (!error)
adam@1782	1324 return result;
adam@1782	1325 else
adam@2013	1326 uw_error(ctx, FATAL, "uw_malloc: posix_memalign() returns %d", error);
adam@1782	1327 } else {
adam@2013	1328 align_heap(ctx);
adam@2013	1329
adam@1782	1330 uw_check_heap(ctx, len);
adam@1782	1331
adam@1782	1332 result = ctx->heap.front;
adam@1782	1333 ctx->heap.front += len;
adam@1782	1334 return result;
adam@1782	1335 }
adamc@117	1336 }
adamc@117	1337
adamc@323	1338 void uw_begin_region(uw_context ctx) {
adam@2013	1339 align_heap(ctx);
adam@2013	1340
adamc@666	1341 regions r = (regions ) ctx->heap.front;
adamc@323	1342
adamc@323	1343 uw_check_heap(ctx, sizeof(regions));
adamc@323	1344
adamc@666	1345 ctx->heap.front += sizeof(regions);
adamc@323	1346
adamc@323	1347 r->next = ctx->regions;
adamc@323	1348 ctx->regions = r;
adamc@323	1349 }
adamc@323	1350
adamc@323	1351 void uw_end_region(uw_context ctx) {
adamc@323	1352 regions *r = ctx->regions;
adamc@323	1353
adamc@323	1354 if (r == NULL)
adamc@323	1355 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1356
adamc@666	1357 ctx->heap.front = (char *) r;
adamc@323	1358 ctx->regions = r->next;
adamc@323	1359 }
adamc@323	1360
adamc@324	1361 void uw_memstats(uw_context ctx) {
adam@1369	1362 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1363 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1364 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1365 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1366 }
adamc@324	1367
adam@1915	1368 int uw_pagelen(uw_context ctx) {
adam@1915	1369 return ctx->page.front - ctx->page.start;
adam@1915	1370 }
adam@1915	1371
adamc@311	1372 int uw_send(uw_context ctx, int sock) {
adam@1949	1373 size_t target_length = (ctx->outHeaders.front - ctx->outHeaders.start) + 2 + (ctx->page.front - ctx->page.start);
adam@1949	1374
adam@1949	1375 if (ctx->output_buffer_size < target_length) {
adam@1949	1376 do {
adam@1949	1377 ctx->output_buffer_size *= 2;
adam@1949	1378 } while (ctx->output_buffer_size < target_length);
adam@1949	1379 ctx->output_buffer = realloc(ctx->output_buffer, ctx->output_buffer_size);
adam@1949	1380 }
adam@1949	1381
adam@1949	1382 memcpy(ctx->output_buffer, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adam@1949	1383 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start), "\r\n", 2);
adam@1949	1384 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start) + 2, ctx->page.start, ctx->page.front - ctx->page.start);
adam@1949	1385
adam@1949	1386 return uw_really_send(sock, ctx->output_buffer, target_length);
adamc@462	1387 }
adamc@462	1388
adamc@856	1389 int uw_print(uw_context ctx, int fd) {
adamc@856	1390 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1391
adamc@856	1392 if (n < 0)
adamc@856	1393 return n;
adamc@856	1394
adamc@856	1395 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1396
adamc@856	1397 if (n < 0)
adamc@856	1398 return n;
adamc@856	1399
adamc@856	1400 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1401 }
adamc@856	1402
adamc@860	1403 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1404 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1405
adamc@860	1406 if (n < 0)
adamc@860	1407 return n;
adamc@860	1408
adamc@860	1409 n = output(data, "\r\n", 2);
adamc@860	1410
adamc@860	1411 if (n < 0)
adamc@860	1412 return n;
adamc@860	1413
adamc@860	1414 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1415 }
adamc@860	1416
adamc@462	1417 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1418 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1419 }
adamc@462	1420
adamc@462	1421 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1422 int len = strlen(s);
adamc@462	1423
adamc@462	1424 uw_check_headers(ctx, len + 1);
adamc@666	1425 strcpy(ctx->outHeaders.front, s);
adamc@666	1426 ctx->outHeaders.front += len;
adamc@562	1427 }
adamc@562	1428
adam@1934	1429 int uw_has_contentLength(uw_context ctx) {
adam@1934	1430 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934	1431 }
adam@1934	1432
adamc@1110	1433 void uw_clear_headers(uw_context ctx) {
adam@1369	1434 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1435 }
adamc@1110	1436
adam@1932	1437 void uw_Basis_clear_page(uw_context ctx) {
adam@1932	1438 uw_buffer_reset(&ctx->page);
adam@1932	1439 }
adam@1932	1440
adamc@562	1441 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1442 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1443 }
adamc@562	1444
adamc@562	1445 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1446 int len = strlen(s);
adamc@562	1447
adamc@562	1448 uw_check_script(ctx, len + 1);
adamc@666	1449 strcpy(ctx->script.front, s);
adamc@666	1450 ctx->script.front += len;
adamc@562	1451 }
adamc@562	1452
adam@1446	1453 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1454 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1455 uw_write_script(ctx, "sig=\"");
adam@1671	1456 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1457 uw_write_script(ctx, "\";");
adam@1671	1458 }
adam@1671	1459
adam@1446	1460 return ctx->script.start;
adam@1446	1461 }
adam@1446	1462
adamc@695	1463 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1464 if (s[0] == 0)
adamc@695	1465 return "";
adamc@695	1466 else {
adamc@695	1467 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1468 sprintf(r, " onload='%s'", s);
adamc@695	1469 return r;
adamc@695	1470 }
adamc@695	1471 }
adamc@695	1472
adamc@1042	1473 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1474 if (ctx->script_header[0] == 0)
adamc@1042	1475 return "";
adamc@1042	1476 else {
vshabanoff@1763	1477 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763	1478 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042	1479 return r;
adamc@1042	1480 }
adamc@1042	1481 }
adamc@1042	1482
adamc@694	1483 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1484 if (ctx->client == NULL) {
adamc@736	1485 if (ctx->needs_sig) {
adamc@1094	1486 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1487 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1488 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1489 return r;
adamc@736	1490 }
adamc@736	1491 else
adamc@736	1492 return "";
adamc@736	1493 } else {
adamc@1094	1494 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1495 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1496 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1497 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1498 (ctx->isPost ? "true" : "false"),
adamc@682	1499 ctx->client->id,
adamc@682	1500 ctx->client->pass,
adamc@1094	1501 ctx->app->url_prefix,
adamc@1094	1502 ctx->app->timeout,
adamc@736	1503 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1504 sig,
adamc@736	1505 ctx->needs_sig ? "\";" : "");
adamc@679	1506 return r;
adamc@668	1507 }
adamc@667	1508 }
adamc@667	1509
adamc@574	1510 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1511 char r, s2;
adamc@574	1512
adam@1446	1513 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1514
adamc@666	1515 r = s2 = ctx->heap.front;
adamc@574	1516 *s2++ = '"';
adamc@574	1517
adamc@574	1518 for (; *s; s++) {
adam@1286	1519 unsigned char c = *s;
adamc@574	1520
adamc@574	1521 switch (c) {
adamc@574	1522 case '"':
adamc@574	1523 strcpy(s2, "\\\"");
adamc@574	1524 s2 += 2;
adamc@574	1525 break;
adamc@1027	1526 case '\'':
adamc@1027	1527 strcpy(s2, "\\047");
adamc@1027	1528 s2 += 4;
adamc@1027	1529 break;
adamc@574	1530 case '\\':
adamc@574	1531 strcpy(s2, "\\\\");
adamc@574	1532 s2 += 2;
adamc@574	1533 break;
adam@1457	1534 case '<':
adam@1457	1535 strcpy(s2, "\\074");
adam@1457	1536 s2 += 4;
adam@1457	1537 break;
adamc@574	1538 default:
adam@1286	1539 if (isprint((int)c) \|\| c >= 128)
adamc@574	1540 *s2++ = c;
adamc@574	1541 else {
adam@1429	1542 sprintf(s2, "\\%03o", c);
adamc@574	1543 s2 += 4;
adamc@574	1544 }
adamc@574	1545 }
adamc@574	1546 }
adamc@574	1547
adamc@574	1548 strcpy(s2, "\"");
adamc@910	1549 ctx->heap.front = s2 + 2;
adamc@574	1550 return r;
adamc@574	1551 }
adamc@574	1552
adam@1286	1553 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1554 unsigned char c = c1;
adamc@1025	1555 char r, s2;
adamc@1025	1556
adam@1446	1557 uw_check_heap(ctx, 7);
adamc@1025	1558
adamc@1025	1559 r = s2 = ctx->heap.front;
adamc@1025	1560 *s2++ = '"';
adamc@1025	1561
adamc@1025	1562 switch (c) {
adamc@1025	1563 case '"':
adamc@1025	1564 strcpy(s2, "\\\"");
adamc@1025	1565 s2 += 2;
adamc@1025	1566 break;
adamc@1027	1567 case '\'':
adamc@1027	1568 strcpy(s2, "\\047");
adamc@1027	1569 s2 += 4;
adamc@1027	1570 break;
adamc@1025	1571 case '\\':
adamc@1025	1572 strcpy(s2, "\\\\");
adamc@1025	1573 s2 += 2;
adamc@1025	1574 break;
adam@1457	1575 case '<':
adam@1457	1576 strcpy(s2, "\\074");
adam@1457	1577 s2 += 4;
adam@1457	1578 break;
adamc@1025	1579 default:
adam@1286	1580 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1581 *s2++ = c;
adamc@1025	1582 else {
adam@1429	1583 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1584 s2 += 4;
adamc@1025	1585 }
adamc@1025	1586 }
adamc@1025	1587
adamc@1025	1588 strcpy(s2, "\"");
adamc@1025	1589 ctx->heap.front = s2 + 2;
adamc@1025	1590 return r;
adamc@1025	1591 }
adamc@1025	1592
adamc@574	1593 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1594 char r, s2;
adamc@574	1595
adam@1446	1596 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1597
adamc@666	1598 r = s2 = ctx->script.front;
adamc@574	1599 *s2++ = '"';
adamc@574	1600
adamc@574	1601 for (; *s; s++) {
adam@1286	1602 unsigned char c = *s;
adamc@574	1603
adamc@574	1604 switch (c) {
adamc@577	1605 case '\'':
adamc@1027	1606 strcpy(s2, "\\");
adamc@574	1607 s2 += 2;
adamc@574	1608 break;
adamc@574	1609 case '\\':
adamc@574	1610 strcpy(s2, "\\\\");
adamc@574	1611 s2 += 2;
adamc@574	1612 break;
adam@1457	1613 case '<':
adam@1457	1614 strcpy(s2, "\\074");
adam@1457	1615 s2 += 4;
adam@1457	1616 break;
adamc@574	1617 default:
adam@1286	1618 if (isprint((int)c) \|\| c >= 128)
adamc@574	1619 *s2++ = c;
adamc@574	1620 else {
adam@1429	1621 sprintf(s2, "\\%03o", c);
adamc@574	1622 s2 += 4;
adamc@574	1623 }
adamc@574	1624 }
adamc@574	1625 }
adamc@574	1626
adamc@574	1627 strcpy(s2, "\"");
adamc@666	1628 ctx->script.front = s2 + 1;
adamc@574	1629 return r;
adamc@574	1630 }
adamc@574	1631
adamc@682	1632 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1633 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1634 return "null";
adamc@682	1635 else {
adamc@682	1636 int len;
adamc@682	1637 char *r;
adamc@682	1638
adamc@682	1639 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1640 r = ctx->heap.front;
adamc@682	1641 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1642 ctx->heap.front += len+1;
adamc@682	1643 return r;
adamc@682	1644 }
adamc@682	1645 }
adamc@682	1646
adam@1446	1647 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1648 int len;
adamc@577	1649 size_t s_len = strlen(s);
adamc@562	1650
grrwlf@1998	1651 if(ctx->id < 0)
grrwlf@1998	1652 uw_error(ctx, FATAL, "Attempt to create client source using inappropriate context");
grrwlf@1998	1653
adam@1446	1654 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1655 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1656 ctx->script.front += len;
adamc@666	1657 strcpy(ctx->script.front, s);
adamc@666	1658 ctx->script.front += s_len;
adamc@970	1659 strcpy(ctx->script.front, "));");
adamc@972	1660 ctx->script.front += 3;
adamc@562	1661
adam@1446	1662 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1663 return r;
adam@1446	1664 }
adam@1446	1665
adam@1446	1666 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1667 int len;
adamc@577	1668 size_t s_len = strlen(s);
adamc@577	1669
adam@1446	1670 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1671 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1672 ctx->script.front += len;
adamc@666	1673 strcpy(ctx->script.front, s);
adamc@666	1674 ctx->script.front += s_len;
adamc@970	1675 strcpy(ctx->script.front, "));");
adamc@972	1676 ctx->script.front += 3;
adamc@577	1677
adamc@577	1678 return uw_unit_v;
adamc@577	1679 }
adamc@577	1680
adamc@311	1681 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1682 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1683 }
adamc@117	1684
adamc@311	1685 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1686 *(ctx->page.front)++ = c;
adam@1413	1687 *ctx->page.front = 0;
adamc@117	1688 }
adamc@117	1689
adamc@311	1690 void uw_writec(uw_context ctx, char c) {
adam@1413	1691 uw_check(ctx, 2);
adamc@311	1692 uw_writec_unsafe(ctx, c);
adamc@117	1693 }
adamc@117	1694
adam@2085	1695 void uw_Basis_writec(uw_context ctx, char c) {
adam@2085	1696 uw_writec(ctx, c);
adam@2085	1697 }
adam@2085	1698
adamc@311	1699 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1700 int len = strlen(s);
adamc@666	1701 memcpy(ctx->page.front, s, len);
adamc@666	1702 ctx->page.front += len;
adamc@117	1703 }
adamc@117	1704
adamc@311	1705 void uw_write(uw_context ctx, const char* s) {
adamc@311	1706 uw_check(ctx, strlen(s) + 1);
adamc@311	1707 uw_write_unsafe(ctx, s);
adamc@666	1708 *ctx->page.front = 0;
adamc@102	1709 }
adamc@106	1710
adamc@311	1711 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1712 char *result;
adamc@136	1713 int len;
adamc@311	1714 uw_check_heap(ctx, INTS_MAX);
adamc@666	1715 result = ctx->heap.front;
adamc@276	1716 sprintf(result, "%lld%n", n, &len);
adamc@666	1717 ctx->heap.front += len+1;
adamc@136	1718 return result;
adamc@106	1719 }
adamc@106	1720
adamc@311	1721 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1722 char *result;
adamc@136	1723 int len;
adamc@311	1724 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1725 result = ctx->heap.front;
adam@1920	1726 sprintf(result, "%.16g%n", n, &len);
adamc@666	1727 ctx->heap.front += len+1;
adamc@136	1728 return result;
adamc@106	1729 }
adamc@106	1730
adamc@311	1731 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1732 int len = strlen(s);
adamc@136	1733 char result, p;
adamc@311	1734 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1735
adamc@666	1736 result = p = ctx->heap.front;
adamc@136	1737
adamc@136	1738 for (; *s; s++) {
adamc@1054	1739 unsigned char c = *s;
adamc@136	1740
adamc@136	1741 if (c == '"') {
adamc@136	1742 strcpy(p, """);
adamc@136	1743 p += 6;
adamc@136	1744 } else if (c == '&') {
adamc@136	1745 strcpy(p, "&");
adamc@136	1746 p += 5;
adamc@136	1747 }
adamc@1059	1748 else
adamc@136	1749 *p++ = c;
adamc@136	1750 }
adamc@136	1751
adamc@137	1752 *p++ = 0;
adamc@666	1753 ctx->heap.front = p;
adamc@136	1754 return result;
adamc@106	1755 }
adamc@106	1756
adamc@1011	1757 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1758 char result, p;
adamc@1011	1759 uw_check_heap(ctx, 7);
adamc@1011	1760
adamc@1011	1761 result = p = ctx->heap.front;
adamc@1011	1762
adamc@1011	1763 if (c == '"') {
adamc@1011	1764 strcpy(p, """);
adamc@1011	1765 p += 6;
adamc@1011	1766 } else if (c == '&') {
adamc@1011	1767 strcpy(p, "&");
adamc@1011	1768 p += 5;
adamc@1011	1769 }
adamc@1059	1770 else
adamc@1011	1771 *p++ = c;
adamc@1011	1772
adamc@1011	1773 *p++ = 0;
adamc@1011	1774 ctx->heap.front = p;
adamc@1011	1775 return result;
adamc@1011	1776 }
adamc@1011	1777
adamc@721	1778 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1779 return s;
adamc@721	1780 }
adamc@721	1781
adamc@311	1782 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1783 int len;
adamc@117	1784
adamc@666	1785 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1786 ctx->page.front += len;
adamc@106	1787 }
adamc@106	1788
adamc@428	1789 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1790 uw_check(ctx, INTS_MAX);
adamc@311	1791 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1792
adamc@428	1793 return uw_unit_v;
adamc@106	1794 }
adamc@106	1795
adamc@428	1796 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1797 int len;
adamc@117	1798
adamc@311	1799 uw_check(ctx, FLOATS_MAX);
adamc@666	1800 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1801 ctx->page.front += len;
adamc@428	1802
adamc@428	1803 return uw_unit_v;
adamc@117	1804 }
adamc@117	1805
adamc@428	1806 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1807 uw_check(ctx, strlen(s) * 6);
adamc@117	1808
adamc@106	1809 for (; *s; s++) {
adamc@1054	1810 unsigned char c = *s;
adamc@106	1811
adamc@106	1812 if (c == '"')
adamc@311	1813 uw_write_unsafe(ctx, """);
adamc@136	1814 else if (c == '&')
adamc@311	1815 uw_write_unsafe(ctx, "&");
adamc@1059	1816 else
adamc@311	1817 uw_writec_unsafe(ctx, c);
adamc@106	1818 }
adamc@428	1819
adamc@428	1820 return uw_unit_v;
adamc@106	1821 }
adamc@120	1822
adamc@1011	1823 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1824 uw_check(ctx, 6);
adamc@1011	1825
adamc@1011	1826 if (c == '"')
adamc@1011	1827 uw_write_unsafe(ctx, """);
adamc@1011	1828 else if (c == '&')
adamc@1011	1829 uw_write_unsafe(ctx, "&");
adamc@1059	1830 else
adamc@1011	1831 uw_writec_unsafe(ctx, c);
adamc@1011	1832
adamc@1011	1833 return uw_unit_v;
adamc@1011	1834 }
adamc@1011	1835
adamc@120	1836
adamc@311	1837 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1838 int len;
adamc@137	1839 char *r;
adamc@137	1840
adamc@311	1841 uw_check_heap(ctx, INTS_MAX);
adamc@666	1842 r = ctx->heap.front;
adamc@276	1843 sprintf(r, "%lld%n", n, &len);
adamc@666	1844 ctx->heap.front += len+1;
adamc@137	1845 return r;
adamc@120	1846 }
adamc@120	1847
adamc@682	1848 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1849 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1850 return "";
adamc@682	1851 else {
adamc@682	1852 int len;
adamc@682	1853 char *r;
adamc@679	1854
adamc@682	1855 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1856 r = ctx->heap.front;
adamc@682	1857 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1858 ctx->heap.front += len+1;
adamc@682	1859 return r;
adamc@682	1860 }
adamc@679	1861 }
adamc@679	1862
adamc@311	1863 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1864 int len;
adamc@137	1865 char *r;
adamc@137	1866
adamc@311	1867 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1868 r = ctx->heap.front;
adamc@137	1869 sprintf(r, "%g%n", n, &len);
adamc@666	1870 ctx->heap.front += len+1;
adamc@137	1871 return r;
adamc@120	1872 }
adamc@120	1873
adamc@311	1874 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1875 char r, p;
adamc@137	1876
adamc@925	1877 if (s[0] == '\0')
adamc@925	1878 return "_";
adamc@925	1879
adamc@925	1880 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1881
adamc@925	1882 r = p = ctx->heap.front;
adamc@925	1883 if (s[0] == '_')
adamc@925	1884 *p++ = '_';
adamc@925	1885
adamc@925	1886 for (; *s; s++) {
adamc@1087	1887 unsigned char c = *s;
adamc@137	1888
adamc@137	1889 if (c == ' ')
adamc@137	1890 *p++ = '+';
adamc@137	1891 else if (isalnum(c))
adamc@137	1892 *p++ = c;
adamc@137	1893 else {
adamc@1259	1894 sprintf(p, ".%02X", c);
adamc@137	1895 p += 3;
adamc@137	1896 }
adamc@137	1897 }
adamc@137	1898
adamc@137	1899 *p++ = 0;
adamc@666	1900 ctx->heap.front = p;
adamc@137	1901 return r;
adamc@120	1902 }
adamc@120	1903
adamc@311	1904 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1905 if (b == uw_Basis_False)
adamc@186	1906 return "0";
adamc@186	1907 else
adamc@186	1908 return "1";
adamc@186	1909 }
adamc@186	1910
adam@1620	1911 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1912 char *r;
adam@1620	1913 int len;
adam@1620	1914 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1915 r = ctx->heap.front;
adam@1620	1916 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1917 ctx->heap.front += len+1;
adam@1620	1918 return r;
adam@1620	1919 }
adam@1620	1920
adamc@311	1921 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1922 int len;
adamc@120	1923
adamc@666	1924 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1925 ctx->page.front += len;
adamc@120	1926 }
adamc@120	1927
adamc@428	1928 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1929 uw_check(ctx, INTS_MAX);
adamc@311	1930 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1931
adamc@428	1932 return uw_unit_v;
adamc@120	1933 }
adamc@120	1934
adamc@682	1935 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1936 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1937 int len;
phurst@1981	1938
adamc@682	1939 uw_check(ctx, INTS_MAX + 1);
adamc@682	1940 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1941 ctx->page.front += len;
adamc@682	1942 }
phurst@1981	1943
adamc@679	1944 return uw_unit_v;
adamc@679	1945 }
adamc@679	1946
adamc@428	1947 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1948 int len;
adamc@120	1949
adamc@311	1950 uw_check(ctx, FLOATS_MAX);
adamc@666	1951 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1952 ctx->page.front += len;
adamc@428	1953
adamc@428	1954 return uw_unit_v;
adamc@120	1955 }
adamc@120	1956
adamc@488	1957 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1958 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1959 }
adamc@488	1960
adam@1404	1961 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1962 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1963 }
adam@1404	1964
adamc@428	1965 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1966 if (s[0] == '\0') {
adamc@925	1967 uw_check(ctx, 1);
adamc@925	1968 uw_writec_unsafe(ctx, '_');
adamc@925	1969 return uw_unit_v;
adamc@925	1970 }
adamc@925	1971
adamc@925	1972 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1973
adamc@925	1974 if (s[0] == '_')
adamc@925	1975 uw_writec_unsafe(ctx, '_');
adamc@120	1976
adamc@120	1977 for (; *s; s++) {
adamc@1087	1978 unsigned char c = *s;
adamc@120	1979
adamc@120	1980 if (c == ' ')
adamc@311	1981 uw_writec_unsafe(ctx, '+');
adamc@120	1982 else if (isalnum(c))
adamc@311	1983 uw_writec_unsafe(ctx, c);
adamc@120	1984 else {
adamc@1259	1985 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1986 ctx->page.front += 3;
adamc@120	1987 }
adamc@120	1988 }
adamc@428	1989
adamc@428	1990 return uw_unit_v;
adamc@120	1991 }
adamc@120	1992
adamc@428	1993 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1994 if (b == uw_Basis_False)
adamc@311	1995 uw_writec(ctx, '0');
adamc@186	1996 else
adamc@311	1997 uw_writec(ctx, '1');
adamc@428	1998
adamc@428	1999 return uw_unit_v;
adamc@186	2000 }
adamc@186	2001
adam@1620	2002 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	2003 int len;
phurst@1981	2004
adam@1620	2005 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	2006 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	2007 ctx->page.front += len;
phurst@1981	2008
adam@1620	2009 return uw_unit_v;
adam@1620	2010 }
adam@1620	2011
adamc@120	2012
adamc@311	2013 static char uw_unurlify_advance(char s) {
adamc@144	2014 char *new_s = strchr(s, '/');
adamc@120	2015
adamc@120	2016 if (new_s)
adamc@120	2017 *new_s++ = 0;
adamc@120	2018 else
adamc@144	2019 new_s = strchr(s, 0);
adamc@144	2020
adamc@144	2021 return new_s;
adamc@144	2022 }
adamc@144	2023
adamc@311	2024 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	2025 char new_s = uw_unurlify_advance(s);
adamc@311	2026 uw_Basis_int r;
adamc@120	2027
adamc@276	2028 r = atoll(*s);
adamc@120	2029 *s = new_s;
adamc@120	2030 return r;
adamc@120	2031 }
adamc@120	2032
adamc@311	2033 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	2034 char new_s = uw_unurlify_advance(s);
adamc@311	2035 uw_Basis_float r;
adamc@120	2036
adamc@120	2037 r = atof(*s);
adamc@120	2038 *s = new_s;
adamc@120	2039 return r;
adamc@120	2040 }
adamc@120	2041
adamc@488	2042 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	2043 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	2044 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	2045 return r;
adamc@488	2046 }
adamc@488	2047
adamc@1023	2048 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	2049 char s1, s2 = s;
adamc@144	2050 int n;
adamc@136	2051
adamc@1023	2052 if (!fromClient) {
adamc@1023	2053 if (*s2 == '_')
adamc@1023	2054 ++s2;
adamc@1259	2055 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	2056 s2 += 3;
adamc@1023	2057 }
adamc@925	2058
adamc@927	2059 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	2060 unsigned char c = *s2;
adamc@136	2061
adamc@136	2062 switch (c) {
adamc@136	2063 case '+':
adamc@136	2064 *s1 = ' ';
adamc@136	2065 break;
adamc@136	2066 case '%':
adamc@169	2067 if (s2[1] == 0)
adamc@311	2068 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	2069 if (s2[2] == 0)
adamc@311	2070 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	2071 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2072 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	2073 *s1 = n;
adamc@136	2074 s2 += 2;
adamc@136	2075 break;
adamc@1259	2076 case '.':
adamc@1259	2077 if (!fromClient) {
adamc@1259	2078 if (s2[1] == 0)
adamc@1259	2079 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	2080 if (s2[2] == 0)
adamc@1259	2081 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	2082 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2083 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	2084 *s1 = n;
adamc@1259	2085 s2 += 2;
adamc@1259	2086 break;
adamc@1259	2087 }
adamc@136	2088 default:
adamc@136	2089 *s1 = c;
adamc@136	2090 }
adamc@136	2091 }
adamc@136	2092 *s1++ = 0;
adamc@144	2093 return s1;
adamc@144	2094 }
adamc@144	2095
adamc@311	2096 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	2097 char new_s = uw_unurlify_advance(s);
adamc@311	2098 uw_Basis_bool r;
phurst@1981	2099
adamc@186	2100 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2101 r = uw_Basis_False;
adamc@186	2102 else
adamc@311	2103 r = uw_Basis_True;
adamc@186	2104
adamc@186	2105 *s = new_s;
adamc@186	2106 return r;
adamc@186	2107 }
adamc@186	2108
adamc@311	2109 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2110 char new_s = uw_unurlify_advance(s);
adamc@1134	2111 char *r;
adamc@1134	2112 int len;
adamc@144	2113
adamc@200	2114 len = strlen(*s);
adamc@311	2115 uw_check_heap(ctx, len + 1);
adamc@144	2116
adamc@666	2117 r = ctx->heap.front;
adamc@1023	2118 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2119 *s = new_s;
adamc@1023	2120 return r;
adamc@1023	2121 }
adamc@1023	2122
adamc@1109	2123 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2124 s = uw_unurlify_advance(s);
adamc@1109	2125 return uw_unit_v;
adamc@1109	2126 }
adamc@1109	2127
adamc@1023	2128 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2129 char new_s = uw_unurlify_advance(s);
adamc@1134	2130 char *r;
adamc@1134	2131 int len;
adamc@1023	2132
adamc@1023	2133 len = strlen(*s);
adamc@1023	2134 uw_check_heap(ctx, len + 1);
adamc@1023	2135
adamc@1023	2136 r = ctx->heap.front;
adamc@1023	2137 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2138 *s = new_s;
adamc@136	2139 return r;
adamc@120	2140 }
adamc@135	2141
adamc@135	2142
adamc@311	2143 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2144 int len;
adamc@286	2145 char *r;
adamc@286	2146
adamc@311	2147 uw_check_heap(ctx, INTS_MAX);
adamc@666	2148 r = ctx->heap.front;
adamc@286	2149 sprintf(r, "%lld%n", n, &len);
adamc@666	2150 ctx->heap.front += len+1;
adamc@286	2151 return r;
adamc@286	2152 }
adamc@286	2153
adamc@428	2154 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2155 int len;
adamc@286	2156
adamc@311	2157 uw_check(ctx, INTS_MAX);
adamc@666	2158 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2159 ctx->page.front += len;
phurst@1981	2160
adamc@428	2161 return uw_unit_v;
adamc@286	2162 }
adamc@286	2163
adam@1358	2164 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2165 unsigned int n = ch;
adam@1358	2166 int len;
adam@1358	2167 char *r;
adam@1358	2168
adam@1358	2169 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2170 r = ctx->heap.front;
adam@1358	2171 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2172 ctx->heap.front += len+1;
adam@1358	2173 return r;
adam@1358	2174 }
adam@1358	2175
adam@1358	2176 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2177 unsigned int n = ch;
adam@1358	2178 int len;
adam@1358	2179
adam@1358	2180 uw_check(ctx, INTS_MAX+3);
adam@1358	2181 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2182 ctx->page.front += len;
adam@1358	2183 return uw_unit_v;
adam@1358	2184 }
adam@1358	2185
adamc@311	2186 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2187 int len;
adamc@286	2188 char *r;
adamc@286	2189
adamc@311	2190 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2191 r = ctx->heap.front;
adamc@286	2192 sprintf(r, "%g%n", n, &len);
adamc@666	2193 ctx->heap.front += len+1;
adamc@286	2194 return r;
adamc@286	2195 }
adamc@286	2196
adamc@428	2197 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2198 int len;
adamc@286	2199
adamc@311	2200 uw_check(ctx, FLOATS_MAX);
adamc@666	2201 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2202 ctx->page.front += len;
adamc@428	2203
adamc@428	2204 return uw_unit_v;
adamc@286	2205 }
adamc@286	2206
adam@1365	2207 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2208 int len;
adam@1360	2209 char *r;
adam@1360	2210
adam@1360	2211 uw_check_heap(ctx, INTS_MAX);
adam@1360	2212 r = ctx->heap.front;
adamc@1377	2213 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2214 ctx->heap.front += len+1;
adam@1360	2215 return r;
adam@1360	2216 }
adam@1360	2217
adam@1365	2218 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2219 int len;
adam@1360	2220
adam@1360	2221 uw_check(ctx, INTS_MAX);
adam@1360	2222 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2223 ctx->page.front += len;
phurst@1981	2224
adam@1360	2225 return uw_unit_v;
adam@1360	2226 }
adam@1360	2227
adam@1444	2228 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2229 char r, s2;
adamc@137	2230
adamc@311	2231 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2232
adamc@666	2233 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2234 unsigned char c = *s;
adamc@137	2235
adamc@137	2236 switch (c) {
adamc@137	2237 case '<':
adamc@137	2238 strcpy(s2, "<");
adamc@137	2239 s2 += 4;
adamc@137	2240 break;
adamc@137	2241 case '&':
adamc@137	2242 strcpy(s2, "&");
adamc@137	2243 s2 += 5;
adamc@137	2244 break;
adamc@137	2245 default:
adamc@1059	2246 *s2++ = c;
adamc@137	2247 }
adamc@137	2248 }
adamc@137	2249
adamc@137	2250 *s2++ = 0;
adamc@666	2251 ctx->heap.front = s2;
adamc@137	2252 return r;
adamc@135	2253 }
adamc@135	2254
adamc@428	2255 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2256 uw_check(ctx, strlen(s) * 6);
adamc@135	2257
adamc@135	2258 for (; *s; s++) {
adamc@1054	2259 unsigned char c = *s;
adamc@135	2260
adamc@135	2261 switch (c) {
adamc@135	2262 case '<':
adamc@311	2263 uw_write_unsafe(ctx, "<");
adamc@135	2264 break;
adamc@135	2265 case '&':
adamc@311	2266 uw_write_unsafe(ctx, "&");
adamc@135	2267 break;
adamc@135	2268 default:
adamc@1059	2269 uw_writec_unsafe(ctx, c);
adamc@135	2270 }
adamc@135	2271 }
adamc@428	2272
adamc@428	2273 return uw_unit_v;
adamc@135	2274 }
adamc@180	2275
adamc@311	2276 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2277 if (b == uw_Basis_False)
adamc@286	2278 return "False";
adamc@286	2279 else
adamc@286	2280 return "True";
adamc@286	2281 }
adamc@286	2282
adamc@428	2283 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2284 if (b == uw_Basis_False) {
adamc@311	2285 uw_check(ctx, 6);
adamc@666	2286 strcpy(ctx->page.front, "False");
adamc@666	2287 ctx->page.front += 5;
adamc@286	2288 } else {
adamc@311	2289 uw_check(ctx, 5);
adamc@666	2290 strcpy(ctx->page.front, "True");
adamc@666	2291 ctx->page.front += 4;
adamc@286	2292 }
adamc@428	2293
adamc@428	2294 return uw_unit_v;
adamc@286	2295 }
adamc@286	2296
adamc@436	2297 #define TIME_FMT "%x %X"
adamc@438	2298 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2299 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2300
adam@1629	2301 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2302
adamc@436	2303 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2304 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2305 }
adamc@436	2306
adamc@436	2307 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2308 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2309 }
adamc@436	2310
adam@1446	2311 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2312 int len;
adam@1446	2313 char *r;
adam@1446	2314
adam@1446	2315 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2316 r = ctx->heap.front;
adam@1446	2317 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2318 ctx->heap.front += len+1;
adam@1446	2319 return r;
adam@1446	2320 }
adam@1446	2321
adam@1446	2322 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2323 int len;
adam@1446	2324
adam@1446	2325 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2326 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2327 ctx->page.front += len;
phurst@1981	2328
adam@1446	2329 return uw_unit_v;
adam@1446	2330 }
adam@1446	2331
adamc@821	2332 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2333 while (n >= 0) {
adam@1388	2334 if (*s == 0)
adam@1388	2335 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2336
adam@1388	2337 if (n == 0)
adam@1388	2338 return *s;
adam@1388	2339
adam@1388	2340 --n;
adam@1388	2341 ++s;
adam@1388	2342 }
adam@1388	2343
adam@1388	2344 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2345 }
adamc@821	2346
adamc@821	2347 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2348 while (n >= 0) {
adam@1388	2349 if (*s == 0 \|\| n == 0)
adam@1388	2350 return s;
adam@1388	2351
adam@1388	2352 --n;
adam@1388	2353 ++s;
adam@1388	2354 }
adam@1388	2355
adam@1388	2356 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2357 }
adamc@821	2358
adamc@828	2359 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2360 return strlen(s);
adamc@828	2361 }
adamc@828	2362
adam@1388	2363 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2364 while (n > 0) {
adam@1388	2365 if (*s == 0)
adam@1388	2366 return uw_Basis_False;
adam@1388	2367
adam@1388	2368 --n;
adam@1388	2369 ++s;
adam@1388	2370 }
adam@1388	2371
adam@1388	2372 return uw_Basis_True;
adam@1388	2373 }
adam@1388	2374
adamc@829	2375 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2376 return strchr(s, ch);
adamc@829	2377 }
adamc@829	2378
adamc@831	2379 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2380 return strcspn(s, chs);
adamc@831	2381 }
adamc@831	2382
adamc@829	2383 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2384 uw_Basis_string r = strchr(s, ch);
adamc@829	2385 if (r == NULL)
adamc@829	2386 return NULL;
adamc@829	2387 else {
adamc@829	2388 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2389 *nr = r - s;
adamc@829	2390 return nr;
adamc@829	2391 }
adamc@829	2392 }
adamc@829	2393
adam@1390	2394 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2395 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2396 if (r == NULL)
adam@1390	2397 return NULL;
adam@1390	2398 else {
adam@1390	2399 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2400 *nr = r - haystack;
adam@1390	2401 return nr;
adam@1390	2402 }
adam@1390	2403 }
adam@1390	2404
adamc@311	2405 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2406 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2407 char *s;
adamc@180	2408
adamc@311	2409 uw_check_heap(ctx, len);
adamc@180	2410
adamc@666	2411 s = ctx->heap.front;
adamc@180	2412
adamc@180	2413 strcpy(s, s1);
adamc@180	2414 strcat(s, s2);
adamc@666	2415 ctx->heap.front += len;
adamc@180	2416
adamc@180	2417 return s;
adamc@180	2418 }
adamc@278	2419
adamc@829	2420 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2421 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2422
adamc@829	2423 if (start < 0)
adamc@829	2424 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2425 if (len < 0)
adamc@829	2426 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2427 if (start + len > full_len)
adamc@829	2428 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2429
adamc@829	2430 if (start + len == full_len)
adamc@829	2431 return &s[start];
adamc@829	2432 else {
adamc@829	2433 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2434 memcpy(r, s+start, len);
adamc@829	2435 r[len] = 0;
adamc@829	2436 return r;
adamc@829	2437 }
phurst@1981	2438
adamc@829	2439 }
adamc@829	2440
adamc@1023	2441 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2442 char *r;
adamc@1023	2443
adamc@1023	2444 uw_check_heap(ctx, 2);
adamc@1023	2445 r = ctx->heap.front;
adamc@1023	2446 r[0] = ch;
adamc@1023	2447 r[1] = 0;
adamc@1023	2448
adamc@1023	2449 ctx->heap.front += 2;
adamc@1023	2450
adamc@1023	2451 return r;
adamc@1023	2452 }
adamc@1023	2453
adamc@737	2454 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2455 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2456 char *s;
adamc@278	2457
adamc@311	2458 uw_check_heap(ctx, len);
adamc@278	2459
adamc@666	2460 s = ctx->heap.front;
adamc@278	2461
adamc@278	2462 strcpy(s, s1);
adamc@666	2463 ctx->heap.front += len;
adamc@278	2464
adamc@278	2465 return s;
adamc@278	2466 }
adamc@280	2467
adam@1295	2468 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2469 if (ctx->error_message[0]) {
adam@1295	2470 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2471 ctx->error_message[0] = 0;
adam@1295	2472 return s;
adam@1295	2473 } else
adam@1295	2474 return NULL;
adam@1295	2475 }
adam@1295	2476
adamc@737	2477 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2478 if (s1)
adamc@737	2479 return uw_strdup(ctx, s1);
adamc@493	2480 else
adamc@493	2481 return NULL;
adamc@493	2482 }
adamc@493	2483
adamc@742	2484 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2485 char *r = uw_malloc(ctx, len);
adamc@742	2486 memcpy(r, p, len);
adamc@742	2487 return r;
adamc@742	2488 }
adamc@280	2489
adamc@879	2490 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2491
adamc@311	2492 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2493 int len;
adamc@281	2494 char *r;
adamc@281	2495
adamc@311	2496 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2497 r = ctx->heap.front;
adamc@879	2498 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2499 ctx->heap.front += len+1;
adamc@281	2500 return r;
adamc@281	2501 }
adamc@281	2502
adamc@467	2503 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2504 if (n == NULL)
adamc@467	2505 return "NULL";
adamc@467	2506 else
adamc@467	2507 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2508 }
adamc@467	2509
adam@1920	2510 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879	2511
adamc@311	2512 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2513 int len;
adamc@281	2514 char *r;
adamc@281	2515
adamc@311	2516 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2517 r = ctx->heap.front;
adamc@879	2518 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2519 ctx->heap.front += len+1;
adamc@281	2520 return r;
adamc@281	2521 }
adamc@281	2522
adamc@467	2523 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2524 if (n == NULL)
adamc@467	2525 return "NULL";
adamc@467	2526 else
adamc@467	2527 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2528 }
adamc@467	2529
adam@1834	2530 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2531 char *uw_sqlsuffixString = "::text";
adamc@1011	2532 char *uw_sqlsuffixChar = "::char";
adamc@281	2533
adamc@311	2534 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2535 char r, s2;
adamc@280	2536
adamc@879	2537 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2538
adamc@666	2539 r = s2 = ctx->heap.front;
adamc@879	2540 if (uw_Estrings)
adamc@879	2541 *s2++ = 'E';
adamc@280	2542 *s2++ = '\'';
adamc@280	2543
adamc@280	2544 for (; *s; s++) {
adamc@280	2545 char c = *s;
adamc@280	2546
adamc@280	2547 switch (c) {
adamc@280	2548 case '\'':
adamc@885	2549 if (uw_Estrings)
adamc@885	2550 strcpy(s2, "\\'");
adamc@885	2551 else
adamc@885	2552 strcpy(s2, "''");
adamc@280	2553 s2 += 2;
adamc@280	2554 break;
adamc@280	2555 case '\\':
adamc@885	2556 if (uw_Estrings) {
adamc@885	2557 strcpy(s2, "\\\\");
adamc@885	2558 s2 += 2;
adamc@885	2559 } else
adamc@885	2560 *s2++ = '\\';
adamc@280	2561 break;
adamc@280	2562 default:
adamc@1150	2563 if (isprint((int)c))
adamc@280	2564 *s2++ = c;
adamc@879	2565 else if (uw_Estrings) {
adam@1857	2566 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2567 s2 += 4;
adamc@280	2568 }
adamc@879	2569 else
adam@1689	2570 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2571 }
adamc@280	2572 }
adamc@280	2573
adamc@879	2574 *s2++ = '\'';
adamc@879	2575 strcpy(s2, uw_sqlsuffixString);
adamc@879	2576 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2577 return r;
adamc@280	2578 }
adamc@281	2579
adamc@1011	2580 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2581 char r, s2;
adamc@1011	2582
adamc@1011	2583 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2584
adamc@1011	2585 r = s2 = ctx->heap.front;
adamc@1011	2586 if (uw_Estrings)
adamc@1011	2587 *s2++ = 'E';
adamc@1011	2588 *s2++ = '\'';
adamc@1011	2589
adamc@1011	2590 switch (c) {
adamc@1011	2591 case '\'':
adamc@1011	2592 if (uw_Estrings)
adamc@1011	2593 strcpy(s2, "\\'");
adamc@1011	2594 else
adamc@1011	2595 strcpy(s2, "''");
adamc@1011	2596 s2 += 2;
adamc@1011	2597 break;
adamc@1011	2598 case '\\':
adamc@1011	2599 if (uw_Estrings) {
adamc@1011	2600 strcpy(s2, "\\\\");
adamc@1011	2601 s2 += 2;
adamc@1011	2602 } else
adamc@1011	2603 *s2++ = '\\';
adamc@1011	2604 break;
adamc@1011	2605 default:
adamc@1150	2606 if (isprint((int)c))
adamc@1011	2607 *s2++ = c;
adamc@1011	2608 else if (uw_Estrings) {
adam@1857	2609 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2610 s2 += 4;
adamc@1011	2611 }
adamc@1011	2612 else
adamc@1011	2613 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2614 }
adamc@1011	2615
adamc@1011	2616 *s2++ = '\'';
adamc@1011	2617 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2618 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2619 return r;
adamc@1011	2620 }
adamc@1011	2621
adamc@879	2622 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2623
adam@1867	2624 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2625 char r, s2;
adamc@737	2626 size_t i;
adamc@737	2627
adam@1867	2628 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2629
adamc@737	2630 r = s2 = ctx->heap.front;
adamc@879	2631 if (uw_Estrings)
adamc@879	2632 *s2++ = 'E';
adam@1867	2633 else
adam@1867	2634 *s2++ = 'X';
adamc@737	2635 *s2++ = '\'';
adamc@737	2636
adamc@737	2637 for (i = 0; i < b.size; ++i) {
adam@1867	2638 unsigned char c = b.data[i];
adam@1867	2639
adam@1867	2640 if (uw_Estrings) {
adam@1867	2641 switch (c) {
adam@1867	2642 case '\'':
adamc@885	2643 strcpy(s2, "\\'");
adam@1867	2644 s2 += 2;
adam@1867	2645 break;
adam@1867	2646 case '\\':
adamc@885	2647 strcpy(s2, "\\\\\\\\");
adamc@885	2648 s2 += 4;
adam@1867	2649 break;
adam@1867	2650 default:
adam@1867	2651 if (isprint((int)c))
adam@1867	2652 *s2++ = c;
adam@1867	2653 else {
adam@1867	2654 sprintf(s2, "\\\\%03o", c);
adam@1867	2655 s2 += 5;
adam@1867	2656 }
adamc@737	2657 }
adam@1867	2658 } else {
adam@1867	2659 sprintf(s2, "%02X", c);
adam@1867	2660 s2 += 2;
adamc@737	2661 }
phurst@1981	2662 }
adamc@737	2663
adamc@879	2664 *s2++ = '\'';
adamc@879	2665 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2666 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2667 return r;
adamc@737	2668 }
adamc@737	2669
adamc@682	2670 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2671 int len;
adamc@682	2672 char *r;
adamc@682	2673 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2674
adamc@682	2675 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2676 r = ctx->heap.front;
adamc@879	2677 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2678 ctx->heap.front += len+1;
adamc@682	2679 return r;
adamc@682	2680 }
adamc@682	2681
adamc@682	2682 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2683 int len;
adamc@682	2684 char *r;
adamc@682	2685 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2686
adamc@682	2687 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2688 r = ctx->heap.front;
adamc@682	2689 sprintf(r, "%lld%n", combo, &len);
adamc@682	2690 ctx->heap.front += len+1;
adamc@682	2691 return r;
adamc@682	2692 }
adamc@682	2693
adamc@879	2694 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2695
adamc@682	2696 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2697 int len;
adamc@682	2698 char *r;
adamc@682	2699
adamc@682	2700 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2701 r = ctx->heap.front;
adamc@879	2702 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2703 ctx->heap.front += len+1;
adamc@682	2704 return r;
adamc@682	2705 }
adamc@682	2706
adamc@682	2707 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2708 int len;
adamc@682	2709 char *r;
adamc@682	2710
adamc@682	2711 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2712 r = ctx->heap.front;
adamc@682	2713 sprintf(r, "%u%n", cli, &len);
adamc@682	2714 ctx->heap.front += len+1;
adamc@682	2715 return r;
adamc@682	2716 }
adamc@682	2717
adamc@467	2718 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2719 if (s == NULL)
adamc@467	2720 return "NULL";
adamc@467	2721 else
adamc@467	2722 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2723 }
adamc@467	2724
adamc@311	2725 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2726 if (b == uw_Basis_False)
adamc@281	2727 return "FALSE";
adamc@281	2728 else
adamc@281	2729 return "TRUE";
adamc@281	2730 }
adamc@282	2731
adamc@467	2732 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2733 if (b == NULL)
adamc@467	2734 return "NULL";
adamc@467	2735 else
adamc@467	2736 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2737 }
adamc@467	2738
adamc@439	2739 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2740 size_t len;
adamc@682	2741 char r, s;
adam@1392	2742 struct tm stm = {};
adam@1392	2743 stm.tm_isdst = -1;
adamc@682	2744
adam@1365	2745 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2746 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2747 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2748 if (uw_sql_type_annotations) {
adam@1834	2749 if (t.microseconds) {
adam@1834	2750 r = uw_malloc(ctx, len + 21);
adam@1834	2751 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2752 } else {
adam@1834	2753 r = uw_malloc(ctx, len + 14);
adam@1834	2754 sprintf(r, "'%s'::timestamp", s);
adam@1834	2755 }
adam@1367	2756 } else {
adam@1834	2757 r = uw_malloc(ctx, len + 3);
adam@1834	2758 sprintf(r, "'%s'", s);
adam@1367	2759 }
adamc@682	2760 return r;
adamc@682	2761 } else
adamc@682	2762 return "<Invalid time>";
adamc@682	2763 }
adamc@682	2764
adamc@682	2765 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2766 size_t len;
adamc@439	2767 char *r;
adam@1392	2768 struct tm stm = {};
adam@1392	2769 stm.tm_isdst = -1;
adamc@439	2770
adam@1365	2771 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2772 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2773 r = ctx->heap.front;
adamc@439	2774 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2775 ctx->heap.front += len+1;
adamc@439	2776 return r;
adamc@439	2777 } else
adamc@439	2778 return "<Invalid time>";
adamc@439	2779 }
adamc@439	2780
adam@1364	2781 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2782 size_t len;
adam@1364	2783 char *r;
adam@1392	2784 struct tm stm = {};
adam@1392	2785 stm.tm_isdst = -1;
adam@1364	2786
adam@1365	2787 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2788 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2789 r = ctx->heap.front;
adam@1365	2790 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2791 ctx->heap.front += len;
adam@1365	2792 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2793 ctx->heap.front += 8;
adam@1364	2794 return r;
adam@1364	2795 } else
adam@1364	2796 return "<Invalid time>";
adam@1364	2797 }
adam@1364	2798
adamc@467	2799 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2800 if (t == NULL)
adamc@467	2801 return "NULL";
adamc@467	2802 else
adamc@467	2803 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2804 }
adamc@467	2805
adamc@311	2806 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2807 static uw_Basis_int true = 1;
adamc@311	2808 static uw_Basis_int false = 0;
adamc@282	2809
adamc@311	2810 if (b == uw_Basis_False)
adamc@282	2811 return (char *)&false;
adamc@282	2812 else
adamc@282	2813 return (char *)&true;
adamc@282	2814 }
adamc@284	2815
adamc@311	2816 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2817 int len;
adamc@284	2818 char *r;
adamc@284	2819
adamc@311	2820 uw_check_heap(ctx, INTS_MAX);
adamc@666	2821 r = ctx->heap.front;
adamc@284	2822 sprintf(r, "%lld%n", n, &len);
adamc@666	2823 ctx->heap.front += len+1;
adamc@284	2824 return r;
adamc@284	2825 }
adamc@285	2826
adamc@311	2827 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2828 int len;
adamc@285	2829 char *r;
adamc@285	2830
adamc@311	2831 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2832 r = ctx->heap.front;
adamc@285	2833 sprintf(r, "%g%n", n, &len);
adamc@666	2834 ctx->heap.front += len+1;
adamc@285	2835 return r;
adamc@285	2836 }
adamc@285	2837
adamc@821	2838 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2839 char *r = uw_malloc(ctx, 2);
adamc@821	2840 r[0] = ch;
adamc@821	2841 r[1] = 0;
adamc@821	2842 return r;
adamc@821	2843 }
adamc@821	2844
adamc@311	2845 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2846 if (b == uw_Basis_False)
adamc@285	2847 return "False";
adamc@285	2848 else
adamc@285	2849 return "True";
adamc@285	2850 }
adamc@288	2851
adam@1359	2852 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2853 size_t len;
adam@1352	2854 char *r;
adam@1392	2855 struct tm stm = {};
adam@1392	2856 stm.tm_isdst = -1;
adam@1352	2857
adam@1365	2858 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2859 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2860 r = ctx->heap.front;
adam@1352	2861 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2862 ctx->heap.front += len+1;
adam@1352	2863 return r;
adam@1352	2864 } else
adam@1352	2865 return "<Invalid time>";
adam@1352	2866 }
adam@1352	2867
adam@1629	2868 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2869 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2870 }
adam@1629	2871
adamc@311	2872 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2873 char *endptr;
adamc@311	2874 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2875
adamc@288	2876 if (s != '\0' && endptr == '\0') {
adamc@311	2877 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2878 *r = n;
adamc@288	2879 return r;
adamc@288	2880 } else
adamc@288	2881 return NULL;
adamc@288	2882 }
adamc@289	2883
adamc@311	2884 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2885 char *endptr;
adamc@311	2886 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2887
adamc@289	2888 if (s != '\0' && endptr == '\0') {
adamc@311	2889 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2890 *r = n;
adamc@289	2891 return r;
adamc@289	2892 } else
adamc@289	2893 return NULL;
adamc@289	2894 }
adamc@289	2895
adamc@821	2896 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2897 if (s[0] == 0) {
adamc@821	2898 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2899 r[0] = 0;
adamc@821	2900 return r;
adamc@821	2901 } else if (s[1] != 0)
adamc@821	2902 return NULL;
adamc@821	2903 else {
adamc@821	2904 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2905 r[0] = s[0];
adamc@821	2906 return r;
adamc@821	2907 }
adamc@821	2908 }
adamc@821	2909
adamc@311	2910 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2911 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2912 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2913
adamc@289	2914 if (!strcasecmp (s, "True"))
adamc@289	2915 return &true;
adamc@289	2916 else if (!strcasecmp (s, "False"))
adamc@289	2917 return &false;
adamc@289	2918 else
adamc@289	2919 return NULL;
adamc@289	2920 }
adamc@292	2921
adamc@436	2922 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2923 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2924 struct tm stm = {};
adam@1392	2925 stm.tm_isdst = -1;
adamc@436	2926
adamc@439	2927 if (dot) {
adamc@439	2928 *dot = 0;
adamc@439	2929 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2930 *dot = '.';
adamc@439	2931 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2932 r->seconds = mktime(&stm);
adam@1365	2933 r->microseconds = 0;
adamc@439	2934 return r;
adamc@439	2935 }
adamc@439	2936 else {
adamc@439	2937 *dot = '.';
adamc@439	2938 return NULL;
adamc@439	2939 }
adamc@436	2940 }
adamc@439	2941 else {
adam@2072	2942 if (strptime(s, ctx->app->time_format, &stm) == end) {
adamc@439	2943 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2944 r->seconds = mktime(&stm);
adam@1365	2945 r->microseconds = 0;
adamc@439	2946 return r;
adam@2072	2947 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@2072	2948 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@2072	2949 r->seconds = mktime(&stm);
adam@2072	2950 r->microseconds = 0;
adam@2072	2951 return r;
adam@2072	2952 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2953 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2954 r->seconds = mktime(&stm);
adam@1365	2955 r->microseconds = 0;
adamc@439	2956 return r;
adam@1632	2957 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2958 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2959 r->seconds = mktime(&stm);
adam@1632	2960 r->microseconds = 0;
adam@1632	2961 return r;
adamc@439	2962 }
adamc@439	2963 else
adamc@439	2964 return NULL;
adamc@439	2965 }
adamc@436	2966 }
adamc@436	2967
adam@1352	2968 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2969 char *end = strchr(s, 0);
adam@1374	2970 struct tm stm = {};
adam@1392	2971 stm.tm_isdst = -1;
adam@1352	2972
adam@1352	2973 if (strptime(s, fmt, &stm) == end) {
adam@1352	2974 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2975 r->seconds = mktime(&stm);
adam@1365	2976 r->microseconds = 0;
adam@1352	2977 return r;
adam@1352	2978 }
adam@1352	2979 else
adam@1352	2980 return NULL;
adam@1352	2981 }
adam@1352	2982
adamc@311	2983 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2984 char *endptr;
adamc@311	2985 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2986
adamc@292	2987 if (s != '\0' && endptr == '\0')
adamc@292	2988 return n;
adamc@292	2989 else
adam@1444	2990 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2991 }
adamc@293	2992
adamc@682	2993 #include <errno.h>
adamc@682	2994
adamc@678	2995 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2996 unsigned long long n;
adamc@682	2997
adamc@682	2998 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2999 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	3000 else {
adamc@682	3001 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	3002 return ch;
adamc@682	3003 }
adamc@682	3004 }
adamc@682	3005
adamc@682	3006 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	3007 char *endptr;
adamc@682	3008 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	3009
adamc@678	3010 if (s != '\0' && endptr == '\0')
adamc@678	3011 return n;
adamc@678	3012 else
adam@1444	3013 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	3014 }
adamc@678	3015
adamc@311	3016 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	3017 char *endptr;
adamc@311	3018 uw_Basis_float n = strtod(s, &endptr);
adamc@293	3019
adamc@293	3020 if (s != '\0' && endptr == '\0')
adamc@293	3021 return n;
adamc@293	3022 else
adam@1444	3023 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3024 }
adamc@293	3025
adamc@821	3026 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	3027 if (s[0] == 0)
adamc@821	3028 return 0;
adamc@821	3029 else if (s[1] != 0)
adam@1444	3030 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	3031 else
adamc@821	3032 return s[0];
adamc@821	3033 }
adamc@821	3034
adamc@311	3035 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	3036 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	3037 return uw_Basis_True;
adamc@296	3038 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	3039 return uw_Basis_False;
adamc@293	3040 else
adam@1444	3041 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3042 }
adamc@436	3043
adam@1352	3044 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	3045 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	3046 struct tm stm = {};
adam@1392	3047 stm.tm_isdst = -1;
adam@1352	3048
adam@1352	3049 if (dot) {
adam@1352	3050 *dot = 0;
adam@1352	3051 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	3052 *dot = '.';
adam@1410	3053 char usec[] = "000000";
adam@1410	3054 int len = strlen(dot+1);
adam@1410	3055 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	3056 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	3057 return r;
adam@1352	3058 }
adam@1352	3059 else {
adam@1352	3060 *dot = '.';
adam@1444	3061 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3062 }
adam@1352	3063 }
adam@1352	3064 else {
adam@1352	3065 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3066 uw_Basis_time r = { mktime(&stm) };
adam@1365	3067 return r;
adam@1352	3068 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3069 uw_Basis_time r = { mktime(&stm) };
adam@1365	3070 return r;
adam@1352	3071 } else
adam@1444	3072 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3073 }
adam@1352	3074 }
adam@1352	3075
adamc@436	3076 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	3077 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	3078 struct tm stm = {};
adam@1392	3079 stm.tm_isdst = -1;
adamc@436	3080
adamc@438	3081 if (dot) {
adamc@438	3082 *dot = 0;
adamc@438	3083 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	3084 *dot = '.';
adam@1365	3085 {
adam@1365	3086 uw_Basis_time r = { mktime(&stm) };
adam@1365	3087 return r;
adam@1365	3088 }
adamc@438	3089 }
adamc@438	3090 else {
adamc@438	3091 *dot = '.';
adam@1444	3092 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3093 }
adamc@438	3094 }
adamc@438	3095 else {
adam@2072	3096 if (strptime(s, ctx->app->time_format, &stm) == end) {
adam@2072	3097 uw_Basis_time r = { mktime(&stm) };
adam@2072	3098 return r;
adam@2072	3099 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3100 uw_Basis_time r = { mktime(&stm) };
adam@1365	3101 return r;
adam@1365	3102 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3103 uw_Basis_time r = { mktime(&stm) };
adam@1365	3104 return r;
adam@1632	3105 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3106 uw_Basis_time r = { mktime(&stm) };
adam@1632	3107 return r;
adam@1365	3108 } else
adam@1444	3109 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3110 }
adamc@436	3111 }
adamc@457	3112
adam@1352	3113 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3114 char *end = strchr(s, 0);
adamc@939	3115 struct tm stm = {};
adam@1392	3116 stm.tm_isdst = -1;
adamc@939	3117
adam@1365	3118 if (strptime(s, fmt, &stm) == end) {
adam@1365	3119 uw_Basis_time r = { mktime(&stm) };
adam@1365	3120 return r;
adam@1365	3121 } else
adam@1444	3122 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3123 }
adamc@939	3124
adamc@742	3125 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3126 char *r = ctx->heap.front;
adamc@742	3127 uw_Basis_blob b = {len, r};
adamc@742	3128
adamc@742	3129 uw_check_heap(ctx, len);
adamc@742	3130
adam@1992	3131 if (s[0] == '\\' && s[1] == 'x') {
adam@1992	3132 s += 2;
adam@1992	3133
adam@1992	3134 while (*s) {
adam@1992	3135 int n;
adam@1992	3136 sscanf(s, "%02x", &n);
adam@1992	3137 *r++ = n;
adam@1992	3138 s += 2;
adam@1992	3139 }
adam@1992	3140 } else {
adam@1992	3141 while (*s) {
adam@1992	3142 if (s[0] == '\\') {
adam@1992	3143 if (s[1] == '\\') {
adam@1992	3144 *r++ = '\\';
adam@1992	3145 s += 2;
adam@1992	3146 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adam@1992	3147 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adam@1992	3148 s += 4;
adam@1992	3149 }
adam@1992	3150 else {
adam@1992	3151 *r++ = '\\';
adam@1992	3152 ++s;
adam@1992	3153 }
adam@1992	3154 } else {
adam@1992	3155 *r++ = s[0];
adamc@742	3156 ++s;
adamc@742	3157 }
adamc@742	3158 }
adamc@742	3159 }
adamc@742	3160
adamc@742	3161 b.size = r - ctx->heap.front;
adamc@742	3162 ctx->heap.front = r;
adam@1992	3163
adamc@742	3164 return b;
adamc@742	3165 }
adamc@742	3166
adam@1402	3167 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3168
adamc@463	3169 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3170 int len = strlen(c);
adamc@854	3171 char *p = ctx->outHeaders.start;
adamc@474	3172
adamc@1134	3173 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3174 char *p2;
adamc@474	3175 p += 13;
adamc@474	3176 p2 = strchr(p, '=');
adamc@474	3177
adamc@474	3178 if (p2) {
adamc@474	3179 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3180
adamc@474	3181 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3182 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3183 return NULL;
adamc@1052	3184 else {
adamc@1052	3185 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3186 memcpy(ret, p2+1, sz);
adamc@1052	3187 ret[sz] = 0;
adamc@1052	3188 return ret;
adamc@1052	3189 }
adamc@474	3190 }
adamc@474	3191 }
adamc@474	3192 }
adamc@463	3193
adamc@1134	3194 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3195 char *p2;
adamc@1051	3196
adamc@854	3197 while (1) {
adamc@1051	3198 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3199 if ((p2 = strchr(p, ';'))) {
adamc@1051	3200 size_t n = p2 - (p + len);
adamc@1051	3201 char *r = uw_malloc(ctx, n);
adamc@1051	3202 memcpy(r, p + 1 + len, n-1);
adamc@1051	3203 r[n-1] = 0;
adamc@1051	3204 return r;
adamc@1051	3205 } else
adamc@1051	3206 return p + 1 + len;
adamc@1134	3207 } else if ((p = strchr(p, ';')))
adamc@854	3208 p += 2;
adamc@463	3209 else
adamc@463	3210 return NULL;
adamc@463	3211 }
adamc@463	3212 }
adamc@792	3213
adamc@792	3214 return NULL;
adamc@457	3215 }
adamc@462	3216
adam@1877	3217 static void set_cookie(uw_context ctx) {
adam@1877	3218 if (ctx->usedSig)
adam@1877	3219 ctx->needsResig = 1;
adam@1877	3220 }
adam@1877	3221
adamc@1050	3222 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	3223 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3224 uw_write_header(ctx, c);
adamc@462	3225 uw_write_header(ctx, "=");
adamc@462	3226 uw_write_header(ctx, v);
adamc@466	3227 uw_write_header(ctx, "; path=");
adamc@466	3228 uw_write_header(ctx, prefix);
adamc@1050	3229 if (expires) {
adamc@1050	3230 char formatted[30];
adam@1392	3231 struct tm tm = {};
adam@1392	3232 tm.tm_isdst = -1;
adamc@1050	3233
adam@1365	3234 gmtime_r(&expires->seconds, &tm);
adamc@1050	3235
adamc@1050	3236 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3237
adamc@1050	3238 uw_write_header(ctx, "; expires=");
adamc@1050	3239 uw_write_header(ctx, formatted);
adamc@1050	3240 }
adamc@1050	3241 if (secure)
adamc@1050	3242 uw_write_header(ctx, "; secure");
adamc@462	3243 uw_write_header(ctx, "\r\n");
adam@1877	3244 set_cookie(ctx);
adamc@462	3245
adamc@462	3246 return uw_unit_v;
adamc@462	3247 }
adamc@667	3248
adamc@1050	3249 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3250 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3251 uw_write_header(ctx, c);
adamc@1050	3252 uw_write_header(ctx, "=; path=");
adamc@1050	3253 uw_write_header(ctx, prefix);
adamc@1052	3254 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3255 set_cookie(ctx);
adamc@1050	3256
adamc@1050	3257 return uw_unit_v;
adamc@1050	3258 }
adamc@1050	3259
adamc@1113	3260 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3261
adamc@682	3262 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3263 unsigned i;
adamc@682	3264 delta *d;
adamc@671	3265
adamc@682	3266 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3267 if (ctx->deltas[i].client == client)
adamc@682	3268 return &ctx->deltas[i];
adamc@671	3269
adamc@682	3270 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3271 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3272 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3273
adamc@682	3274 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3275 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3276 }
adamc@671	3277
adamc@682	3278 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3279 d->client = client;
adam@1369	3280 uw_buffer_reset(&d->msgs);
adamc@682	3281 return d;
adamc@671	3282 }
adamc@671	3283
adamc@668	3284 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3285 if (ctx->client == NULL)
adamc@682	3286 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3287
adamc@682	3288 return new_channel(ctx->client);
adamc@668	3289 }
adamc@668	3290
adamc@668	3291 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3292 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3293 size_t len;
adamc@682	3294 int preLen;
adamc@682	3295 char pre[INTS_MAX + 2];
adamc@668	3296
adamc@682	3297 len = strlen(msg);
adamc@682	3298
adamc@682	3299 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3300
adam@1369	3301 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3302 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3303 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3304
adamc@671	3305 return uw_unit_v;
adamc@668	3306 }
adamc@671	3307
adam@1327	3308 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3309 int i;
adamc@1131	3310 cleanup *cl;
adamc@1131	3311
adamc@1131	3312 if (ctx->client)
adamc@1131	3313 release_client(ctx->client);
adamc@1131	3314
adamc@1131	3315 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3316 cl->func(cl->arg);
adamc@1131	3317
adamc@1131	3318 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3319
adamc@1131	3320 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3321 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3322 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3323
adamc@1131	3324 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3325 if (ctx->transactionals[i].free)
adam@1327	3326 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3327
adam@1941	3328 if (ctx->app && ctx->transaction_started) {
adam@1941	3329 ctx->transaction_started = 0;
adam@1941	3330 return ctx->app->db_rollback(ctx);
adam@1941	3331 } else
adam@1941	3332 return 0;
adamc@1131	3333 }
adamc@1131	3334
adam@1956	3335 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	3336 const char uw_begin_html5[] = "<!DOCTYPE html><html>";
adam@1728	3337
adam@1877	3338 extern int uw_hash_blocksize;
adam@1877	3339
adam@1877	3340 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3341
adam@1877	3342 static char find_sig(char haystack) {
adam@1877	3343 int i;
adam@1877	3344 char *s = strstr(haystack, sig_intro);
adam@1877	3345
adam@1877	3346 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3347 return NULL;
phurst@1981	3348
adam@1877	3349 s += sizeof sig_intro - 1;
adam@1877	3350
adam@1877	3351 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3352 if (!isxdigit((int)s[i]))
adam@1877	3353 return NULL;
adam@1877	3354
adam@1877	3355 if (s[i] != '"')
adam@1877	3356 return NULL;
adam@1877	3357
adam@1877	3358 return s;
adam@1877	3359 }
adam@1877	3360
adam@2033	3361 static pthread_mutex_t message_send_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2033	3362
adam@1938	3363 int uw_commit(uw_context ctx) {
adamc@1104	3364 int i;
adam@1877	3365 char *sig;
adamc@1104	3366
adamc@1131	3367 if (uw_has_error(ctx)) {
adam@1327	3368 uw_rollback(ctx, 0);
adam@1938	3369 return 0;
adamc@1131	3370 }
adamc@1131	3371
adamc@1104	3372 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3373 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3374 if (ctx->transactionals[i].commit) {
adamc@1083	3375 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3376 if (uw_has_error(ctx)) {
adam@1327	3377 uw_rollback(ctx, 0);
adam@1938	3378 return 0;
adamc@1131	3379 }
adamc@1131	3380 }
adamc@771	3381
adam@2033	3382 // Here's an important lock to provide the abstraction that all messages from one transaction are sent as an atomic unit.
adam@2033	3383 if (ctx->used_deltas > 0)
adam@2033	3384 pthread_mutex_lock(&message_send_mutex);
adam@2033	3385
adam@2000	3386 if (ctx->transaction_started) {
adam@2000	3387 int code = ctx->app->db_commit(ctx);
adam@2000	3388
adam@2000	3389 if (code) {
adam@2033	3390 if (ctx->used_deltas > 0)
adam@2033	3391 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3392
adam@2000	3393 if (ctx->client)
adam@2000	3394 release_client(ctx->client);
adam@2000	3395
adam@2000	3396 if (code == -1) {
adam@2000	3397 // This case is for a serialization failure, which is not really an "error."
adam@2000	3398 // The transaction will restart, so we should rollback any transactionals
adam@2000	3399 // that triggered above.
adam@2000	3400
adam@2000	3401 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3402 if (ctx->transactionals[i].rollback != NULL)
adam@2000	3403 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2000	3404
adam@2000	3405 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3406 if (ctx->transactionals[i].free)
adam@2000	3407 ctx->transactionals[i].free(ctx->transactionals[i].data, 1);
adam@2000	3408
grrwlf@2030	3409 return 1;
adam@2000	3410 }
adam@2000	3411
adam@2000	3412 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3413 if (ctx->transactionals[i].free)
adam@2000	3414 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3415
adam@2000	3416 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@2000	3417 return 0;
adam@2000	3418 }
adam@2000	3419 }
adam@2000	3420
adamc@1104	3421 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3422 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3423 if (ctx->transactionals[i].commit) {
adamc@1083	3424 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3425 if (uw_has_error(ctx)) {
adam@2033	3426 if (ctx->used_deltas > 0)
adam@2033	3427 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3428
adam@2033	3429 if (ctx->client)
adam@2033	3430 release_client(ctx->client);
adam@2033	3431
adam@2033	3432 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3433 if (ctx->transactionals[i].rollback != NULL)
adam@2033	3434 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2033	3435
adam@2033	3436 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3437 if (ctx->transactionals[i].free)
adam@2033	3438 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3439
adam@1938	3440 return 0;
adamc@1131	3441 }
adamc@1131	3442 }
adamc@1131	3443
adamc@682	3444 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3445 delta *d = &ctx->deltas[i];
adamc@682	3446 client *c = find_client(d->client);
adamc@682	3447
adam@1551	3448 assert (c != NULL);
adam@1551	3449 assert(c->mode == USED);
adamc@682	3450
adam@1447	3451 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3452 }
adamc@682	3453
adam@2033	3454 if (ctx->used_deltas > 0)
adam@2033	3455 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3456
adamc@682	3457 if (ctx->client)
adamc@685	3458 release_client(ctx->client);
adamc@771	3459
adamc@1104	3460 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3461 if (ctx->transactionals[i].free)
adam@1327	3462 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3463
vshabanoff@1726	3464 uw_check(ctx, 1);
vshabanoff@1726	3465 *ctx->page.front = 0;
adam@1413	3466
adam@1956	3467 if (!ctx->returning_indirectly
adam@1956	3468 && (ctx->app->is_html5
adam@1956	3469 ? !strncmp(ctx->page.start, uw_begin_html5, sizeof uw_begin_html5 - 1)
adam@1956	3470 : !strncmp(ctx->page.start, uw_begin_xhtml, sizeof uw_begin_xhtml - 1))) {
adam@1728	3471 char *s;
adam@1728	3472
adam@1728	3473 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1956	3474 s = ctx->page.start + (ctx->app->is_html5 ? sizeof uw_begin_html5 - 1 : sizeof uw_begin_xhtml - 1);
adam@1728	3475 s = strchr(s, '<');
adam@1728	3476 if (s == NULL) {
adam@1728	3477 // Weird. Document has no tags!
adam@1728	3478
adam@1728	3479 uw_write(ctx, "<head></head><body></body>");
adam@1728	3480 uw_check(ctx, 1);
adam@1728	3481 *ctx->page.front = 0;
adam@1728	3482 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3483 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3484
adam@1729	3485 // Any freeform JavaScript to include?
adam@1729	3486 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3487 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3488 size_t lenP = lenH + 40 + len;
adam@1729	3489 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3490
adam@1729	3491 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3492 start += ctx->page.start - oldPage;
adam@1729	3493 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3494 ctx->page.front += lenP;
adam@1729	3495 memcpy(start, ctx->script_header, lenH);
adam@1729	3496 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3497 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3498 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3499 } else {
adam@1729	3500 size_t lenH = strlen(ctx->script_header);
adam@1729	3501 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3502
adam@1729	3503 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3504 start += ctx->page.start - oldPage;
adam@1729	3505 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3506 ctx->page.front += lenH;
adam@1729	3507 memcpy(start, ctx->script_header, lenH);
adam@1729	3508 }
adam@1728	3509 } else {
adam@1728	3510 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3511
adam@1729	3512 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3513 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3514 size_t lenP = lenH + 53 + len;
adam@1729	3515 char start = s, oldPage = ctx->page.start;
adam@1729	3516
adam@1729	3517 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3518 start += ctx->page.start - oldPage;
adam@1729	3519 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3520 ctx->page.front += lenP;
adam@1729	3521 memcpy(start, "<head>", 6);
adam@1729	3522 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3523 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3524 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3525 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3526 } else {
adam@1729	3527 size_t lenH = strlen(ctx->script_header);
adam@1729	3528 size_t lenP = lenH + 13;
adam@1729	3529 char start = s, oldPage = ctx->page.start;
adam@1729	3530
adam@1729	3531 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3532 start += ctx->page.start - oldPage;
adam@1729	3533 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3534 ctx->page.front += lenP;
adam@1729	3535 memcpy(start, "<head>", 6);
adam@1729	3536 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3537 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3538 }
adamc@916	3539 }
adamc@916	3540 }
adam@1877	3541
adam@1877	3542 if (ctx->needsResig) {
adam@1877	3543 sig = find_sig(ctx->page.start);
adam@1877	3544 if (sig) {
adam@1877	3545 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3546
adam@1877	3547 do {
adam@1877	3548 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3549 sig = find_sig(sig);
adam@1877	3550 } while (sig);
adam@1877	3551 }
adam@1877	3552 }
adam@1938	3553
adam@1938	3554 return 0;
adamc@671	3555 }
adamc@671	3556
adamc@683	3557
adamc@1113	3558 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3559
adam@2001	3560 int uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3561 uw_callback_with_retry free) {
adamc@771	3562 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3563 if (ctx->used_transactionals+1 > uw_transactionals_max)
adam@2001	3564 // Exceeded limit on number of transactionals.
adam@2001	3565 return -1;
adamc@1084	3566 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3567 ++ctx->n_transactionals;
adamc@771	3568 }
adamc@771	3569
adamc@771	3570 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3571 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3572 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3573 ctx->transactionals[ctx->used_transactionals++].free = free;
adam@2001	3574
adam@2001	3575 return 0;
adamc@771	3576 }
adamc@771	3577
adamc@683	3578
adamc@683	3579 // "Garbage collection"
adamc@683	3580
adamc@1121	3581 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3582 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3583
adamc@1121	3584 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3585 int r = setjmp(ctx->jmp_buf);
adamc@683	3586
adamc@1121	3587 if (r == 0)
adamc@1121	3588 uw_do_expunge(ctx, cli, data);
adamc@1121	3589 else
adamc@1121	3590 ctx->app->db_rollback(ctx);
adamc@1121	3591
adamc@1121	3592 uw_post_expunge(ctx, data);
adamc@683	3593
adamc@683	3594 return r;
adamc@683	3595 }
adamc@683	3596
adamc@683	3597 void uw_prune_clients(uw_context ctx) {
adamc@683	3598 client c, next, *prev = NULL;
adamc@683	3599 time_t cutoff;
adamc@683	3600
adamc@1094	3601 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3602
adamc@683	3603 pthread_mutex_lock(&clients_mutex);
adam@1707	3604 pruning_thread = pthread_self();
adam@1707	3605 pruning_thread_initialized = 1;
adamc@683	3606
adamc@683	3607 for (c = clients_used; c; c = next) {
adamc@683	3608 next = c->next;
adamc@683	3609 pthread_mutex_lock(&c->lock);
adamc@685	3610 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3611 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3612 if (prev)
adamc@683	3613 prev->next = next;
adamc@683	3614 else
adamc@683	3615 clients_used = next;
adamc@683	3616 while (fk == UNLIMITED_RETRY) {
adam@1941	3617 uw_reset(ctx);
adamc@1121	3618 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3619 if (fk == UNLIMITED_RETRY)
adamc@684	3620 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3621 }
adamc@684	3622 if (fk == SUCCESS)
adamc@684	3623 free_client(c);
adamc@1121	3624 else
adamc@856	3625 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3626 }
adamc@683	3627 else
adamc@683	3628 prev = c;
adamc@683	3629 pthread_mutex_unlock(&c->lock);
adamc@683	3630 }
adamc@683	3631
adamc@683	3632 pthread_mutex_unlock(&clients_mutex);
adamc@683	3633 }
adamc@687	3634
adamc@687	3635 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3636 int r = setjmp(ctx->jmp_buf);
adamc@687	3637
adamc@687	3638 if (r == 0) {
adam@1936	3639 uw_ensure_transaction(ctx);
adamc@1094	3640 ctx->app->initializer(ctx);
adamc@1094	3641 if (ctx->app->db_commit(ctx))
adamc@687	3642 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3643 }
adamc@687	3644
adamc@687	3645 return r;
adamc@687	3646 }
adamc@717	3647
adamc@1065	3648 static int url_bad(uw_Basis_string s) {
adamc@1065	3649 for (; *s; ++s)
adamc@1153	3650 if (!isgraph((int)*s))
adamc@1065	3651 return 1;
adamc@1065	3652
adamc@1065	3653 return 0;
adamc@1065	3654 }
adamc@1065	3655
adamc@717	3656 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3657 if (url_bad(s))
adamc@1065	3658 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3659 if (ctx->app->check_url(s))
adamc@770	3660 return s;
adamc@770	3661 else
adamc@770	3662 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3663 }
adamc@734	3664
adamc@770	3665 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3666 if (url_bad(s))
adamc@1065	3667 return NULL;
adamc@1094	3668 if (ctx->app->check_url(s))
adamc@770	3669 return s;
adamc@770	3670 else
adamc@770	3671 return NULL;
adamc@770	3672 }
adamc@770	3673
adam@1465	3674 static int mime_format(const char *s) {
adamc@770	3675 for (; *s; ++s)
grrwlf@2024	3676 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.' && *s != '+')
adamc@770	3677 return 0;
adamc@770	3678
adamc@770	3679 return 1;
adamc@770	3680 }
adamc@770	3681
adamc@741	3682 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3683 if (!mime_format(s))
adamc@770	3684 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3685
adamc@1094	3686 if (ctx->app->check_mime(s))
adamc@770	3687 return s;
adamc@770	3688 else
adamc@770	3689 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3690 }
adamc@770	3691
adamc@770	3692 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3693 if (!mime_format(s))
adamc@770	3694 return NULL;
adamc@770	3695
adamc@1094	3696 if (ctx->app->check_mime(s))
adamc@770	3697 return s;
adamc@770	3698 else
adamc@770	3699 return NULL;
adamc@741	3700 }
adamc@741	3701
adam@1465	3702 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3703 if (!mime_format(s))
adam@1465	3704 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3705
adam@1465	3706 if (ctx->app->check_requestHeader(s))
adam@1465	3707 return s;
adam@1465	3708 else
adam@1465	3709 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3710 }
adam@1465	3711
adam@1465	3712 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3713 if (!mime_format(s))
adam@1465	3714 return NULL;
adam@1465	3715
adam@1465	3716 if (ctx->app->check_requestHeader(s))
adam@1465	3717 return s;
adam@1465	3718 else
adam@1465	3719 return NULL;
adam@1465	3720 }
adam@1465	3721
adam@1465	3722 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3723 if (!mime_format(s))
adam@1465	3724 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3725
adam@1465	3726 if (ctx->app->check_responseHeader(s))
adam@1465	3727 return s;
adam@1465	3728 else
adam@1465	3729 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3730 }
adam@1465	3731
adam@1799	3732 static int envVar_format(const char *s) {
adam@1799	3733 for (; *s; ++s)
adam@1799	3734 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3735 return 0;
adam@1799	3736
adam@1799	3737 return 1;
adam@1799	3738 }
adam@1799	3739
adam@1465	3740 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3741 if (!envVar_format(s))
adam@1465	3742 return NULL;
adam@1465	3743
adam@1465	3744 if (ctx->app->check_responseHeader(s))
adam@1465	3745 return s;
adam@1465	3746 else
adam@1465	3747 return NULL;
adam@1465	3748 }
adam@1465	3749
adam@1799	3750 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3751 if (!envVar_format(s))
adam@1799	3752 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3753
adam@1799	3754 if (ctx->app->check_envVar(s))
adam@1799	3755 return s;
adam@1799	3756 else
adam@1799	3757 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3758 }
adam@1799	3759
adam@1799	3760 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3761 if (!mime_format(s))
adam@1799	3762 return NULL;
adam@1799	3763
adam@1799	3764 if (ctx->app->check_envVar(s))
adam@1799	3765 return s;
adam@1799	3766 else
adam@1799	3767 return NULL;
adam@1799	3768 }
adam@1799	3769
adam@1465	3770 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3771 return uw_Basis_requestHeader(ctx, name);
adam@1465	3772 }
adam@1465	3773
adam@1465	3774 static int mime_value_format(const char *s) {
adam@1465	3775 for (; *s; ++s)
adam@1465	3776 if (s == '\r' \|\| s == '\n')
adam@1465	3777 return 0;
adam@1465	3778
adam@1465	3779 return 1;
adam@1465	3780 }
adam@1465	3781
adam@1465	3782 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3783 if (!mime_value_format(value))
adam@1465	3784 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3785
adam@1465	3786 uw_write_header(ctx, name);
adam@1465	3787 uw_write_header(ctx, ": ");
adam@1465	3788 uw_write_header(ctx, value);
adam@1465	3789 uw_write_header(ctx, "\r\n");
adam@1465	3790
adam@1465	3791 return uw_unit_v;
adam@1465	3792 }
adam@1465	3793
adam@1799	3794 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1993	3795 if (ctx->get_env)
adam@1993	3796 return ctx->get_env(ctx->get_env_data, name);
adam@1993	3797 else
adam@1994	3798 return getenv(name);
adam@1799	3799 }
adam@1799	3800
adamc@734	3801 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3802 return s ? s : "";
adamc@734	3803 }
adamc@734	3804
adamc@734	3805 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3806 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3807 int i;
phurst@1981	3808
adamc@734	3809 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3810 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3811
adamc@734	3812 return r;
adamc@734	3813 }
adamc@734	3814
adam@1512	3815 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3816 * optimizations that would enable timing attacks. See:
adam@1512	3817 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3818 */
adam@1512	3819 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3820 int i, x = 0, len1 = strlen(s1);
adam@1512	3821
adam@1512	3822 if (len1 != strlen(s2)) return 0;
adam@1512	3823
adam@1512	3824 for (i = 0; i < len1; ++i) {
adam@1512	3825 __asm__ __volatile__ ("");
adam@1512	3826 x \|= s1[i] ^ s2[i];
adam@1512	3827 }
adam@1512	3828
adam@1512	3829 return x == 0;
adam@1512	3830 }
adam@1512	3831
adamc@734	3832 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3833 ctx->usedSig = 1;
adamc@1094	3834 return ctx->app->cookie_sig(ctx);
adamc@734	3835 }
adamc@737	3836
adamc@737	3837 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3838 return f.name;
adamc@737	3839 }
adamc@737	3840
adamc@740	3841 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3842 return f.type;
adamc@740	3843 }
adamc@740	3844
adamc@745	3845 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3846 return b.size;
adamc@745	3847 }
adamc@745	3848
adamc@1119	3849 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3850 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3851
adamc@1119	3852 return b;
adamc@1119	3853 }
adamc@1119	3854
adamc@737	3855 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3856 return f.data;
adamc@737	3857 }
adamc@741	3858
adam@1347	3859 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3860 return pb.type;
adam@1347	3861 }
adam@1347	3862
adam@1347	3863 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3864 return pb.data;
adam@1347	3865 }
adam@1347	3866
adam@1471	3867 static char *old_headers(uw_context ctx) {
adam@1471	3868 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3869 return NULL;
adam@1471	3870 else {
adam@1471	3871 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3872
adam@1471	3873 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3874 return NULL;
adam@1471	3875 else {
adam@1471	3876 s = strchr(s+15, '\n');
adam@1471	3877 if (s == NULL)
adam@1471	3878 return NULL;
adam@1471	3879 else
adam@1471	3880 return uw_strdup(ctx, s+1);
adam@1471	3881 }
adam@1471	3882 }
adam@1471	3883 }
adam@1471	3884
adamc@741	3885 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3886 cleanup *cl;
adamc@741	3887 int len;
adam@1471	3888 char *oldh;
adamc@741	3889
adam@1451	3890 if (!ctx->allowed_to_return_indirectly)
adam@1451	3891 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3892
adamc@1065	3893 ctx->returning_indirectly = 1;
adam@1471	3894 oldh = old_headers(ctx);
adam@1369	3895 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3896 uw_buffer_reset(&ctx->page);
adamc@741	3897
adamc@856	3898 uw_write_header(ctx, on_success);
adamc@856	3899 uw_write_header(ctx, "Content-Type: ");
adamc@741	3900 uw_write_header(ctx, mimeType);
adam@1934	3901 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369	3902 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3903 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3904 ctx->outHeaders.front += len;
adamc@1066	3905 uw_write_header(ctx, "\r\n");
adam@1471	3906 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3907
adam@1369	3908 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3909
adamc@741	3910 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3911 cl->func(cl->arg);
adamc@741	3912
adamc@741	3913 ctx->cleanup_front = ctx->cleanup;
adamc@741	3914
adamc@1065	3915 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3916 }
adamc@1065	3917
adam@2046	3918 void uw_replace_page(uw_context ctx, const char *data, size_t size) {
adam@2046	3919 uw_buffer_reset(&ctx->page);
adam@2046	3920 ctx_uw_buffer_append(ctx, "page", &ctx->page, data, size);
adam@2046	3921 }
adam@2046	3922
adam@1932	3923 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932	3924 cleanup *cl;
adam@1932	3925 int len;
adam@1932	3926 char *oldh;
adam@1932	3927
adam@1932	3928 if (!ctx->allowed_to_return_indirectly)
adam@1932	3929 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932	3930
adam@1932	3931 ctx->returning_indirectly = 1;
adam@1932	3932 oldh = old_headers(ctx);
adam@1932	3933 uw_buffer_reset(&ctx->outHeaders);
adam@1932	3934
adam@1932	3935 uw_write_header(ctx, on_success);
adam@1932	3936 uw_write_header(ctx, "Content-Type: ");
adam@1932	3937 uw_write_header(ctx, mimeType);
adam@1934	3938 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932	3939 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932	3940 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932	3941 ctx->outHeaders.front += len;
adam@1932	3942 uw_write_header(ctx, "\r\n");
adam@1932	3943 if (oldh) uw_write_header(ctx, oldh);
adam@1932	3944
adam@1932	3945 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932	3946 cl->func(cl->arg);
adam@1932	3947
adam@1932	3948 ctx->cleanup_front = ctx->cleanup;
adam@1932	3949
adam@1932	3950 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932	3951 }
adam@1932	3952
adamc@1065	3953 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3954 cleanup *cl;
adamc@1066	3955 char *s;
adam@1471	3956 char *oldh;
adamc@1065	3957
adam@1451	3958 if (!ctx->allowed_to_return_indirectly)
adam@1451	3959 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3960
adamc@1065	3961 ctx->returning_indirectly = 1;
adam@1471	3962 oldh = old_headers(ctx);
adam@1369	3963 uw_buffer_reset(&ctx->page);
adam@1369	3964 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3965 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3966 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3967 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3968
adam@1409	3969 if (on_success[0])
adam@1409	3970 uw_write_header(ctx, on_redirect);
adam@1409	3971 else
adam@1409	3972 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3973 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3974 if (s) {
adamc@1066	3975 char *s2;
adam@1409	3976 if (s[0] == '\n') ++s;
adam@1409	3977 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3978 *s2 = 0;
adamc@1066	3979 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3980 uw_write_header(ctx, s);
adamc@1066	3981 uw_write_header(ctx, "\n");
adamc@1066	3982 }
adamc@1066	3983 }
adamc@1066	3984 }
adamc@1066	3985
adamc@1065	3986 uw_write_header(ctx, "Location: ");
adamc@1065	3987 uw_write_header(ctx, url);
adamc@1065	3988 uw_write_header(ctx, "\r\n\r\n");
adam@1471	3989 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	3990
adamc@1065	3991 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3992 cl->func(cl->arg);
adamc@1065	3993
adamc@1065	3994 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3995
adamc@1065	3996 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3997 }
adamc@874	3998
adamc@874	3999 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	4000 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	4001
adamc@874	4002 for (; *s; ++s) {
adamc@874	4003 if (s[0] == '\'') {
adamc@874	4004 *r++ = '\'';
adamc@874	4005 for (++s; *s; ++s) {
adamc@874	4006 if (s[0] == '\'') {
adamc@874	4007 *r++ = '\'';
adamc@874	4008 break;
adamc@874	4009 } else if (s[0] == '\\') {
adam@1467	4010 *r++ = '\\';
adam@1467	4011 *r++ = s[1];
adam@1467	4012 ++s;
adamc@874	4013 } else
adamc@874	4014 *r++ = s[0];
adamc@874	4015 }
adamc@874	4016 if (*s == 0) break;
adam@1467	4017 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	4018 s += 3;
adamc@874	4019 else
adamc@874	4020 *r++ = s[0];
adamc@874	4021 }
adamc@874	4022
adam@1467	4023 *r = 0;
adam@1467	4024 return ret;
adamc@874	4025 }
adamc@874	4026
adamc@922	4027 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	4028 va_list ap;
adamc@922	4029 size_t len = 1;
adamc@922	4030 char s, r, *s2;
phurst@1981	4031
adamc@922	4032 va_start(ap, ctx);
adamc@922	4033 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4034 len += strlen(s);
adamc@922	4035 va_end(ap);
adamc@922	4036
adamc@922	4037 r = uw_malloc(ctx, len);
adamc@922	4038 va_start(ap, ctx);
adamc@922	4039 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4040 while (*s)
adamc@922	4041 s2++ = s++;
adamc@922	4042 va_end(ap);
adamc@922	4043 *s2 = 0;
adamc@922	4044
adamc@922	4045 return r;
adamc@922	4046 }
adamc@1006	4047
adam@1365	4048 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	4049
adamc@1006	4050 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	4051 uw_Basis_time r = { time(NULL) };
adam@1365	4052 return r;
adamc@1006	4053 }
adamc@1061	4054
adam@1369	4055 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	4056 tm.seconds += n;
adam@1365	4057 return tm;
adamc@1138	4058 }
adamc@1138	4059
adam@1514	4060 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	4061 return difftime(tm2.seconds, tm1.seconds);
adam@1514	4062 }
adam@1514	4063
adam@1685	4064 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	4065 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	4066 }
adam@1685	4067
adam@1685	4068 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	4069 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	4070 }
adam@1685	4071
adam@1514	4072 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	4073 return tm.seconds;
adam@1514	4074 }
adam@1514	4075
phurst@1971	4076 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	4077 struct tm tm = { .tm_year = year - 1900, .tm_mon = month, .tm_mday = day,
adam@2015	4078 .tm_hour = hour, .tm_min = minute, .tm_sec = second,
adam@2015	4079 .tm_isdst = -1 };
phurst@1984	4080 uw_Basis_time r = { timelocal(&tm) };
phurst@1971	4081 return r;
phurst@1971	4082 }
phurst@1971	4083
phurst@1971	4084 uw_Basis_int uw_Basis_datetimeYear(uw_context ctx, uw_Basis_time time) {
phurst@1971	4085 struct tm tm;
phurst@1982	4086 localtime_r(&time.seconds, &tm);
phurst@1971	4087 return tm.tm_year + 1900;
phurst@1971	4088 }
phurst@1971	4089
phurst@1971	4090 uw_Basis_int uw_Basis_datetimeMonth(uw_context ctx, uw_Basis_time time) {
phurst@1971	4091 struct tm tm;
phurst@1982	4092 localtime_r(&time.seconds, &tm);
phurst@1971	4093 return tm.tm_mon;
phurst@1971	4094 }
phurst@1971	4095
phurst@1971	4096 uw_Basis_int uw_Basis_datetimeDay(uw_context ctx, uw_Basis_time time) {
phurst@1971	4097 struct tm tm;
phurst@1982	4098 localtime_r(&time.seconds, &tm);
phurst@1971	4099 return tm.tm_mday;
phurst@1971	4100 }
phurst@1971	4101
phurst@1971	4102 uw_Basis_int uw_Basis_datetimeHour(uw_context ctx, uw_Basis_time time) {
phurst@1971	4103 struct tm tm;
phurst@1982	4104 localtime_r(&time.seconds, &tm);
phurst@1971	4105 return tm.tm_hour;
phurst@1971	4106 }
phurst@1971	4107
phurst@1971	4108 uw_Basis_int uw_Basis_datetimeMinute(uw_context ctx, uw_Basis_time time) {
phurst@1971	4109 struct tm tm;
phurst@1982	4110 localtime_r(&time.seconds, &tm);
phurst@1971	4111 return tm.tm_min;
phurst@1971	4112 }
phurst@1971	4113
phurst@1971	4114 uw_Basis_int uw_Basis_datetimeSecond(uw_context ctx, uw_Basis_time time) {
phurst@1971	4115 struct tm tm;
phurst@1982	4116 localtime_r(&time.seconds, &tm);
phurst@1971	4117 return tm.tm_sec;
phurst@1971	4118 }
phurst@1971	4119
phurst@1973	4120 uw_Basis_int uw_Basis_datetimeDayOfWeek(uw_context ctx, uw_Basis_time time) {
phurst@1973	4121 struct tm tm;
phurst@1982	4122 localtime_r(&time.seconds, &tm);
phurst@1973	4123 return tm.tm_wday;
phurst@1973	4124 }
phurst@1971	4125
phurst@1971	4126
adamc@1061	4127 void uw_get_global(uw_context ctx, char name) {
adamc@1061	4128 int i;
adamc@1061	4129
adamc@1061	4130 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4131 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	4132 return ctx->globals[i].data;
adamc@1061	4133
adamc@1061	4134 return NULL;
adamc@1061	4135 }
adamc@1061	4136
adamc@1113	4137 size_t uw_globals_max = SIZE_MAX;
adamc@1113	4138
adamc@1061	4139 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	4140 int i;
adamc@1061	4141
adamc@1061	4142 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4143 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	4144 if (ctx->globals[i].free)
adamc@1061	4145 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	4146 ctx->globals[i].data = data;
adamc@1061	4147 ctx->globals[i].free = free;
adamc@1061	4148 return;
adamc@1061	4149 }
adamc@1089	4150
adamc@1113	4151 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	4152 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	4153
adamc@1061	4154 ++ctx->n_globals;
adamc@1061	4155 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	4156 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	4157 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	4158 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	4159 }
adamc@1061	4160
adamc@1061	4161 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	4162 return !!isalnum((int)c);
adamc@1061	4163 }
adamc@1061	4164
adamc@1061	4165 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	4166 return !!isalpha((int)c);
adamc@1061	4167 }
adamc@1061	4168
adamc@1061	4169 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	4170 return !!isblank((int)c);
adamc@1061	4171 }
adamc@1061	4172
adamc@1061	4173 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	4174 return !!iscntrl((int)c);
adamc@1061	4175 }
adamc@1061	4176
adamc@1061	4177 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4178 return !!isdigit((int)c);
adamc@1061	4179 }
adamc@1061	4180
adamc@1061	4181 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	4182 return !!isgraph((int)c);
adamc@1061	4183 }
adamc@1061	4184
adamc@1061	4185 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4186 return !!islower((int)c);
adamc@1061	4187 }
adamc@1061	4188
adamc@1061	4189 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	4190 return !!isprint((int)c);
adamc@1061	4191 }
adamc@1061	4192
adamc@1061	4193 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	4194 return !!ispunct((int)c);
adamc@1061	4195 }
adamc@1061	4196
adamc@1061	4197 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	4198 return !!isspace((int)c);
adamc@1061	4199 }
adamc@1063	4200
adamc@1061	4201 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4202 return !!isupper((int)c);
adamc@1061	4203 }
adamc@1061	4204
adamc@1061	4205 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4206 return !!isxdigit((int)c);
adamc@1061	4207 }
adamc@1061	4208
adamc@1061	4209 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4210 return tolower((int)c);
adamc@1061	4211 }
adamc@1061	4212
adamc@1061	4213 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4214 return toupper((int)c);
adamc@1061	4215 }
adamc@1066	4216
adamc@1128	4217 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	4218 return (unsigned char)c;
adamc@1128	4219 }
adamc@1128	4220
adamc@1128	4221 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	4222 return n;
adamc@1128	4223 }
adamc@1128	4224
adamc@1066	4225 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	4226 return ctx->current_url;
adamc@1066	4227 }
adamc@1066	4228
adamc@1066	4229 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	4230 ctx->current_url = s;
adamc@1066	4231 }
adamc@1114	4232
adamc@1114	4233 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	4234 ctx->deadline = n;
adamc@1114	4235 }
adamc@1114	4236
adamc@1114	4237 void uw_check_deadline(uw_context ctx) {
adamc@1114	4238 if (uw_time > ctx->deadline)
adamc@1114	4239 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	4240 }
adamc@1115	4241
adamc@1115	4242 size_t uw_database_max = SIZE_MAX;
adamc@1120	4243
adam@1389	4244 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@2143	4245 if (ctx->loggers->log_debug)
adam@2143	4246 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@2143	4247 else
adam@2143	4248 fprintf(stderr, "%s\n", s);
adam@1389	4249 return 0;
adam@1389	4250 }
adam@1389	4251
adamc@1120	4252 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
grrwlf@1997	4253 if (ctx->loggers->log_debug)
grrwlf@1997	4254 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@1334	4255 else
adam@1334	4256 fprintf(stderr, "%s\n", s);
adamc@1120	4257 return uw_unit_v;
adamc@1120	4258 }
adamc@1250	4259
adamc@1250	4260 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@2104	4261 int r = my_rand();
adam@2104	4262
adam@2104	4263 if (r >= 0)
adam@2104	4264 return r;
adam@1486	4265 else
adam@1486	4266 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	4267 }
adam@1347	4268
adam@1347	4269 void uw_noPostBody(uw_context ctx) {
adam@1347	4270 ctx->hasPostBody = 0;
adam@1347	4271 }
adam@1347	4272
adam@1347	4273 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	4274 ctx->hasPostBody = 1;
adam@1347	4275 ctx->postBody = pb;
adam@1347	4276 }
adam@1347	4277
adam@1347	4278 int uw_hasPostBody(uw_context ctx) {
adam@1347	4279 return ctx->hasPostBody;
adam@1347	4280 }
adam@1347	4281
adam@1386	4282 void uw_isPost(uw_context ctx) {
adam@1386	4283 ctx->isPost = 1;
adam@1386	4284 }
adam@1386	4285
adam@1386	4286 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4287 return ctx->isPost;
adam@1386	4288 }
adam@1386	4289
adam@1485	4290 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4291 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4292 }
adam@1485	4293
adam@1370	4294 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4295 ctx->queryString = s;
adam@1370	4296 }
adam@1370	4297
adam@1370	4298 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4299 return ctx->queryString;
adam@1370	4300 }
adam@1370	4301
adam@1347	4302 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4303 if (ctx->hasPostBody)
adam@1347	4304 return ctx->postBody;
adam@1347	4305 else
adam@1347	4306 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4307 }
adam@1349	4308
adam@1349	4309 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4310 int r = setjmp(ctx->jmp_buf);
adam@1349	4311
adam@1349	4312 if (r == 0) {
adam@1936	4313 uw_ensure_transaction(ctx);
adam@1418	4314
adam@1349	4315 callback(ctx);
adam@1349	4316 }
adam@1349	4317
adam@1349	4318 return r;
adam@1349	4319 }
adam@1360	4320
adam@1360	4321 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4322 char buf[14];
adam@1397	4323 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4324 }
adam@1365	4325
adam@1365	4326 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4327 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	4328 }
adam@1365	4329
adam@1365	4330 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@2034	4331 return !!(t1.seconds < t2.seconds \|\| (t1.seconds == t2.seconds && t1.microseconds < t2.microseconds));
adam@1365	4332 }
adam@1365	4333
adam@1365	4334 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4335 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4336 }
adam@1365	4337
adam@1372	4338 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4339 struct tm stm = {};
adam@1375	4340 char *end = strchr(s, 0);
adam@1449	4341 stm.tm_isdst = -1;
adam@1375	4342
adam@1632	4343 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4344 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4345
kkallio@1448	4346 r->seconds = timegm(&stm);
adam@1373	4347 r->microseconds = 0;
adam@1373	4348
adam@1373	4349 return r;
adam@1374	4350 }
adam@1374	4351 else
adam@1373	4352 return NULL;
adam@1372	4353 }
adam@1407	4354
adam@1407	4355 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4356 int r = setjmp(ctx->jmp_buf);
adam@1407	4357
adam@1407	4358 if (ctx->app->on_error) {
adam@1407	4359 if (r == 0) {
adam@1936	4360 uw_ensure_transaction(ctx);
adam@1407	4361
adam@1409	4362 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4363 if (on_success[0])
adam@1409	4364 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4365 else
adam@1409	4366 uw_write_header(ctx, "Status: ");
adam@1409	4367 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919	4368 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1956	4369 uw_write(ctx, ctx->app->is_html5 ? uw_begin_html5 : uw_begin_xhtml);
adam@1407	4370 ctx->app->on_error(ctx, msg);
adam@1407	4371 uw_write(ctx, "</html>");
adam@1407	4372 }
adam@1407	4373
adam@1407	4374 return r;
adam@1407	4375 } else
adam@1407	4376 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4377 }
adam@1451	4378
adam@1451	4379 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4380 ctx->allowed_to_return_indirectly = 1;
adam@1451	4381 }
adam@1483	4382
adam@1556	4383 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4384 int len;
adam@1703	4385 char *r;
adam@1703	4386
adam@1703	4387 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4388 r = ctx->heap.front;
adam@1703	4389 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4390 ctx->heap.front += len+1;
adam@1703	4391 return r;
adam@1556	4392 }
adam@1571	4393
adam@1571	4394 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4395 return n;
adam@1571	4396 }
adam@1571	4397
adam@1571	4398 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4399 return ceil(n);
adam@1571	4400 }
adam@1571	4401
adam@1571	4402 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4403 return trunc(n);
adam@1571	4404 }
adam@1571	4405
adam@1571	4406 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4407 return round(n);
adam@1571	4408 }
adam@1755	4409
adam@1755	4410 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755	4411 char *p;
adam@1755	4412
adam@1755	4413 for (p = s; *p; ++p) {
adam@1755	4414 char c = *p;
adam@1801	4415 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755	4416 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4417 }
adam@1755	4418
adam@1755	4419 return s;
adam@1755	4420 }
adam@1755	4421
adam@1755	4422 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4423 char *p;
adam@1755	4424
adam@1755	4425 for (p = s; *p; ++p) {
adam@1755	4426 char c = *p;
adam@1801	4427 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4428 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4429 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4430 }
adam@1755	4431
adam@1755	4432 return s;
adam@1755	4433 }
adam@1755	4434
adam@1755	4435 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4436 char *p;
adam@1755	4437
adam@1755	4438 if (!*s)
adam@1755	4439 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4440
adam@1801	4441 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4442 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4443
adam@1755	4444 for (p = s; *p; ++p) {
adam@1755	4445 char c = *p;
adam@1801	4446 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4447 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4448 }
adam@1755	4449
adam@1755	4450 return s;
adam@1755	4451 }
adam@1787	4452
adam@1787	4453 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4454 return f.name;
adam@1787	4455 }
adam@1787	4456
adam@1787	4457 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4458 return f.value;
adam@1787	4459 }
adam@1787	4460
adam@1787	4461 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4462 return f.remaining;
adam@1787	4463 }
adam@1787	4464
adam@1787	4465 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4466 char *unurl;
adam@1787	4467 uw_Basis_postField *f;
adam@1787	4468
adam@1788	4469 if (!ctx->hasPostBody)
adam@1788	4470 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4471
adam@1788	4472 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4473 return NULL;
adam@1787	4474
adam@1787	4475 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4476 unurl = s;
adam@1787	4477 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4478 s = strchr(s, 0);
adam@1788	4479 if (!s)
adam@1788	4480 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4481 ++s;
adam@1788	4482 unurl = s;
adam@1788	4483 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4484 s = strchr(s, 0);
adam@1788	4485 if (!s)
adam@1788	4486 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4487 f->remaining = s+1;
adam@1787	4488
adam@1787	4489 return f;
adam@1787	4490 }
adam@2008	4491
adam@2008	4492 uw_Basis_string uw_Basis_blessData(uw_context ctx, uw_Basis_string s) {
adam@2008	4493 char *p = s;
adam@2008	4494
adam@2008	4495 for (; *p; ++p)
adam@2008	4496 if (!isalnum(p) && p != '-' && *p != '_')
adam@2008	4497 uw_error(ctx, FATAL, "Illegal HTML5 data-* attribute: %s", s);
adam@2008	4498
adam@2008	4499 return s;
adam@2008	4500 }
adam@2073	4501
adam@2073	4502 int uw_remoteSock(uw_context ctx) {
adam@2073	4503 return ctx->remoteSock;
adam@2073	4504 }
adam@2073	4505
adam@2073	4506 void uw_set_remoteSock(uw_context ctx, int sock) {
adam@2073	4507 ctx->remoteSock = sock;
adam@2073	4508 }

Mercurial > urweb

annotate src/c/urweb.c @ 2176:d2a98983f502