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

annotate src/c/urweb.c @ 2198:cf2abef213d8

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author	Adam Chlipala <adam@chlipala.net>
date	Sat, 05 Dec 2015 12:12:40 -0500
parents	14c45a0b6362
children	985c8016b592

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

Mercurial > urweb

annotate src/c/urweb.c @ 2198:cf2abef213d8