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

annotate src/c/urweb.c @ 2177:00cf8214c2e3

Switching to a more dynamic method of handling database reconnection, restarting transactions

author	Adam Chlipala <adam@chlipala.net>
date	Sat, 17 Oct 2015 11:08:12 -0400
parents	d2a98983f502
children	c76a9712334c

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

Mercurial > urweb

annotate src/c/urweb.c @ 2177:00cf8214c2e3