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

annotate src/c/urweb.c @ 1644:75cf4a68f6c9

More about the JavaScript FFI in the manual

author	Adam Chlipala <adam@chlipala.net>
date	Wed, 28 Dec 2011 10:30:37 -0500
parents	4682b312e9d5
children	f9ffe8497742

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

Mercurial > urweb

annotate src/c/urweb.c @ 1644:75cf4a68f6c9