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

annotate src/c/urweb.c @ 1725:7b9775d4a8ce

'linker' .urp directive

author	Adam Chlipala <adam@chlipala.net>
date	Sun, 22 Apr 2012 10:57:22 -0400
parents	e263dab7b579
children	4df4521fbd3b

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

Mercurial > urweb

annotate src/c/urweb.c @ 1725:7b9775d4a8ce