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

annotate src/c/urweb.c @ 1579:e1f4ac9ca34b

Note a parsing restriction in the manual

author	Adam Chlipala <adam@chlipala.net>
date	Fri, 21 Oct 2011 08:36:10 -0400
parents	f403e129c276
children	43f22a8f76cc

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
adamc@311	1765 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1766 int len;
adamc@120	1767
adamc@666	1768 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1769 ctx->page.front += len;
adamc@120	1770 }
adamc@120	1771
adamc@428	1772 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1773 uw_check(ctx, INTS_MAX);
adamc@311	1774 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1775
adamc@428	1776 return uw_unit_v;
adamc@120	1777 }
adamc@120	1778
adamc@682	1779 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1780 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1781 int len;
adamc@682	1782
adamc@682	1783 uw_check(ctx, INTS_MAX + 1);
adamc@682	1784 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1785 ctx->page.front += len;
adamc@682	1786 }
adamc@682	1787
adamc@679	1788 return uw_unit_v;
adamc@679	1789 }
adamc@679	1790
adamc@428	1791 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1792 int len;
adamc@120	1793
adamc@311	1794 uw_check(ctx, FLOATS_MAX);
adamc@666	1795 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1796 ctx->page.front += len;
adamc@428	1797
adamc@428	1798 return uw_unit_v;
adamc@120	1799 }
adamc@120	1800
adamc@488	1801 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1802 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1803 }
adamc@488	1804
adam@1404	1805 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1806 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1807 }
adam@1404	1808
adamc@428	1809 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1810 if (s[0] == '\0') {
adamc@925	1811 uw_check(ctx, 1);
adamc@925	1812 uw_writec_unsafe(ctx, '_');
adamc@925	1813 return uw_unit_v;
adamc@925	1814 }
adamc@925	1815
adamc@925	1816 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1817
adamc@925	1818 if (s[0] == '_')
adamc@925	1819 uw_writec_unsafe(ctx, '_');
adamc@120	1820
adamc@120	1821 for (; *s; s++) {
adamc@1087	1822 unsigned char c = *s;
adamc@120	1823
adamc@120	1824 if (c == ' ')
adamc@311	1825 uw_writec_unsafe(ctx, '+');
adamc@120	1826 else if (isalnum(c))
adamc@311	1827 uw_writec_unsafe(ctx, c);
adamc@120	1828 else {
adamc@1259	1829 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1830 ctx->page.front += 3;
adamc@120	1831 }
adamc@120	1832 }
adamc@428	1833
adamc@428	1834 return uw_unit_v;
adamc@120	1835 }
adamc@120	1836
adamc@428	1837 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1838 if (b == uw_Basis_False)
adamc@311	1839 uw_writec(ctx, '0');
adamc@186	1840 else
adamc@311	1841 uw_writec(ctx, '1');
adamc@428	1842
adamc@428	1843 return uw_unit_v;
adamc@186	1844 }
adamc@186	1845
adamc@120	1846
adamc@311	1847 static char uw_unurlify_advance(char s) {
adamc@144	1848 char *new_s = strchr(s, '/');
adamc@120	1849
adamc@120	1850 if (new_s)
adamc@120	1851 *new_s++ = 0;
adamc@120	1852 else
adamc@144	1853 new_s = strchr(s, 0);
adamc@144	1854
adamc@144	1855 return new_s;
adamc@144	1856 }
adamc@144	1857
adamc@311	1858 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1859 char new_s = uw_unurlify_advance(s);
adamc@311	1860 uw_Basis_int r;
adamc@120	1861
adamc@276	1862 r = atoll(*s);
adamc@120	1863 *s = new_s;
adamc@120	1864 return r;
adamc@120	1865 }
adamc@120	1866
adamc@311	1867 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1868 char new_s = uw_unurlify_advance(s);
adamc@311	1869 uw_Basis_float r;
adamc@120	1870
adamc@120	1871 r = atof(*s);
adamc@120	1872 *s = new_s;
adamc@120	1873 return r;
adamc@120	1874 }
adamc@120	1875
adamc@488	1876 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	1877 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	1878 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	1879 return r;
adamc@488	1880 }
adamc@488	1881
adamc@1023	1882 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1883 char s1, s2 = s;
adamc@144	1884 int n;
adamc@136	1885
adamc@1023	1886 if (!fromClient) {
adamc@1023	1887 if (*s2 == '_')
adamc@1023	1888 ++s2;
adamc@1259	1889 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1890 s2 += 3;
adamc@1023	1891 }
adamc@925	1892
adamc@927	1893 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	1894 unsigned char c = *s2;
adamc@136	1895
adamc@136	1896 switch (c) {
adamc@136	1897 case '+':
adamc@136	1898 *s1 = ' ';
adamc@136	1899 break;
adamc@136	1900 case '%':
adamc@169	1901 if (s2[1] == 0)
adamc@311	1902 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1903 if (s2[2] == 0)
adamc@311	1904 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1905 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	1906 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	1907 *s1 = n;
adamc@136	1908 s2 += 2;
adamc@136	1909 break;
adamc@1259	1910 case '.':
adamc@1259	1911 if (!fromClient) {
adamc@1259	1912 if (s2[1] == 0)
adamc@1259	1913 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	1914 if (s2[2] == 0)
adamc@1259	1915 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	1916 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	1917 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	1918 *s1 = n;
adamc@1259	1919 s2 += 2;
adamc@1259	1920 break;
adamc@1259	1921 }
adamc@136	1922 default:
adamc@136	1923 *s1 = c;
adamc@136	1924 }
adamc@136	1925 }
adamc@136	1926 *s1++ = 0;
adamc@144	1927 return s1;
adamc@144	1928 }
adamc@144	1929
adamc@311	1930 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	1931 char new_s = uw_unurlify_advance(s);
adamc@311	1932 uw_Basis_bool r;
adamc@186	1933
adamc@186	1934 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	1935 r = uw_Basis_False;
adamc@186	1936 else
adamc@311	1937 r = uw_Basis_True;
adamc@186	1938
adamc@186	1939 *s = new_s;
adamc@186	1940 return r;
adamc@186	1941 }
adamc@186	1942
adamc@311	1943 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	1944 char new_s = uw_unurlify_advance(s);
adamc@1134	1945 char *r;
adamc@1134	1946 int len;
adamc@144	1947
adamc@200	1948 len = strlen(*s);
adamc@311	1949 uw_check_heap(ctx, len + 1);
adamc@144	1950
adamc@666	1951 r = ctx->heap.front;
adamc@1023	1952 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	1953 *s = new_s;
adamc@1023	1954 return r;
adamc@1023	1955 }
adamc@1023	1956
adamc@1109	1957 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	1958 s = uw_unurlify_advance(s);
adamc@1109	1959 return uw_unit_v;
adamc@1109	1960 }
adamc@1109	1961
adamc@1023	1962 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	1963 char new_s = uw_unurlify_advance(s);
adamc@1134	1964 char *r;
adamc@1134	1965 int len;
adamc@1023	1966
adamc@1023	1967 len = strlen(*s);
adamc@1023	1968 uw_check_heap(ctx, len + 1);
adamc@1023	1969
adamc@1023	1970 r = ctx->heap.front;
adamc@1023	1971 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	1972 *s = new_s;
adamc@136	1973 return r;
adamc@120	1974 }
adamc@135	1975
adamc@135	1976
adamc@311	1977 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	1978 int len;
adamc@286	1979 char *r;
adamc@286	1980
adamc@311	1981 uw_check_heap(ctx, INTS_MAX);
adamc@666	1982 r = ctx->heap.front;
adamc@286	1983 sprintf(r, "%lld%n", n, &len);
adamc@666	1984 ctx->heap.front += len+1;
adamc@286	1985 return r;
adamc@286	1986 }
adamc@286	1987
adamc@428	1988 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	1989 int len;
adamc@286	1990
adamc@311	1991 uw_check(ctx, INTS_MAX);
adamc@666	1992 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1993 ctx->page.front += len;
adamc@428	1994
adamc@428	1995 return uw_unit_v;
adamc@286	1996 }
adamc@286	1997
adam@1358	1998 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	1999 unsigned int n = ch;
adam@1358	2000 int len;
adam@1358	2001 char *r;
adam@1358	2002
adam@1358	2003 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2004 r = ctx->heap.front;
adam@1358	2005 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2006 ctx->heap.front += len+1;
adam@1358	2007 return r;
adam@1358	2008 }
adam@1358	2009
adam@1358	2010 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2011 unsigned int n = ch;
adam@1358	2012 int len;
adam@1358	2013
adam@1358	2014 uw_check(ctx, INTS_MAX+3);
adam@1358	2015 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2016 ctx->page.front += len;
adam@1358	2017 return uw_unit_v;
adam@1358	2018 }
adam@1358	2019
adamc@311	2020 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2021 int len;
adamc@286	2022 char *r;
adamc@286	2023
adamc@311	2024 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2025 r = ctx->heap.front;
adamc@286	2026 sprintf(r, "%g%n", n, &len);
adamc@666	2027 ctx->heap.front += len+1;
adamc@286	2028 return r;
adamc@286	2029 }
adamc@286	2030
adamc@428	2031 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2032 int len;
adamc@286	2033
adamc@311	2034 uw_check(ctx, FLOATS_MAX);
adamc@666	2035 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2036 ctx->page.front += len;
adamc@428	2037
adamc@428	2038 return uw_unit_v;
adamc@286	2039 }
adamc@286	2040
adam@1365	2041 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2042 int len;
adam@1360	2043 char *r;
adam@1360	2044
adam@1360	2045 uw_check_heap(ctx, INTS_MAX);
adam@1360	2046 r = ctx->heap.front;
adamc@1377	2047 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2048 ctx->heap.front += len+1;
adam@1360	2049 return r;
adam@1360	2050 }
adam@1360	2051
adam@1365	2052 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2053 int len;
adam@1360	2054
adam@1360	2055 uw_check(ctx, INTS_MAX);
adam@1360	2056 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2057 ctx->page.front += len;
adam@1360	2058
adam@1360	2059 return uw_unit_v;
adam@1360	2060 }
adam@1360	2061
adam@1444	2062 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2063 char r, s2;
adamc@137	2064
adamc@311	2065 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2066
adamc@666	2067 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2068 unsigned char c = *s;
adamc@137	2069
adamc@137	2070 switch (c) {
adamc@137	2071 case '<':
adamc@137	2072 strcpy(s2, "<");
adamc@137	2073 s2 += 4;
adamc@137	2074 break;
adamc@137	2075 case '&':
adamc@137	2076 strcpy(s2, "&");
adamc@137	2077 s2 += 5;
adamc@137	2078 break;
adamc@137	2079 default:
adamc@1059	2080 *s2++ = c;
adamc@137	2081 }
adamc@137	2082 }
adamc@137	2083
adamc@137	2084 *s2++ = 0;
adamc@666	2085 ctx->heap.front = s2;
adamc@137	2086 return r;
adamc@135	2087 }
adamc@135	2088
adamc@428	2089 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2090 uw_check(ctx, strlen(s) * 6);
adamc@135	2091
adamc@135	2092 for (; *s; s++) {
adamc@1054	2093 unsigned char c = *s;
adamc@135	2094
adamc@135	2095 switch (c) {
adamc@135	2096 case '<':
adamc@311	2097 uw_write_unsafe(ctx, "<");
adamc@135	2098 break;
adamc@135	2099 case '&':
adamc@311	2100 uw_write_unsafe(ctx, "&");
adamc@135	2101 break;
adamc@135	2102 default:
adamc@1059	2103 uw_writec_unsafe(ctx, c);
adamc@135	2104 }
adamc@135	2105 }
adamc@428	2106
adamc@428	2107 return uw_unit_v;
adamc@135	2108 }
adamc@180	2109
adamc@311	2110 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2111 if (b == uw_Basis_False)
adamc@286	2112 return "False";
adamc@286	2113 else
adamc@286	2114 return "True";
adamc@286	2115 }
adamc@286	2116
adamc@428	2117 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2118 if (b == uw_Basis_False) {
adamc@311	2119 uw_check(ctx, 6);
adamc@666	2120 strcpy(ctx->page.front, "False");
adamc@666	2121 ctx->page.front += 5;
adamc@286	2122 } else {
adamc@311	2123 uw_check(ctx, 5);
adamc@666	2124 strcpy(ctx->page.front, "True");
adamc@666	2125 ctx->page.front += 4;
adamc@286	2126 }
adamc@428	2127
adamc@428	2128 return uw_unit_v;
adamc@286	2129 }
adamc@286	2130
adamc@436	2131 #define TIME_FMT "%x %X"
adamc@438	2132 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436	2133
adamc@436	2134 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436	2135 size_t len;
adamc@436	2136 char *r;
adam@1392	2137 struct tm stm = {};
adam@1392	2138 stm.tm_isdst = -1;
adamc@436	2139
adam@1365	2140 if (localtime_r(&t.seconds, &stm)) {
adamc@436	2141 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2142 r = ctx->heap.front;
adamc@436	2143 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2144 ctx->heap.front += len+1;
adamc@436	2145 return r;
adamc@436	2146 } else
adamc@436	2147 return "<i>Invalid time</i>";
adamc@436	2148 }
adamc@436	2149
adamc@436	2150 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436	2151 size_t len;
adamc@436	2152 char *r;
adam@1392	2153 struct tm stm = {};
adam@1392	2154 stm.tm_isdst = -1;
adamc@436	2155
adam@1365	2156 if (localtime_r(&t.seconds, &stm)) {
adamc@436	2157 uw_check(ctx, TIMES_MAX);
adamc@666	2158 r = ctx->page.front;
adamc@436	2159 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2160 ctx->page.front += len;
adamc@436	2161 } else {
adamc@436	2162 uw_check(ctx, 20);
adamc@666	2163 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666	2164 ctx->page.front += 19;
adamc@436	2165 }
adamc@436	2166
adamc@436	2167 return uw_unit_v;
adamc@436	2168 }
adamc@436	2169
adam@1446	2170 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2171 int len;
adam@1446	2172 char *r;
adam@1446	2173
adam@1446	2174 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2175 r = ctx->heap.front;
adam@1446	2176 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2177 ctx->heap.front += len+1;
adam@1446	2178 return r;
adam@1446	2179 }
adam@1446	2180
adam@1446	2181 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2182 int len;
adam@1446	2183
adam@1446	2184 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2185 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2186 ctx->page.front += len;
adam@1446	2187
adam@1446	2188 return uw_unit_v;
adam@1446	2189 }
adam@1446	2190
adamc@821	2191 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2192 while (n >= 0) {
adam@1388	2193 if (*s == 0)
adam@1388	2194 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2195
adam@1388	2196 if (n == 0)
adam@1388	2197 return *s;
adam@1388	2198
adam@1388	2199 --n;
adam@1388	2200 ++s;
adam@1388	2201 }
adam@1388	2202
adam@1388	2203 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2204 }
adamc@821	2205
adamc@821	2206 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2207 while (n >= 0) {
adam@1388	2208 if (*s == 0 \|\| n == 0)
adam@1388	2209 return s;
adam@1388	2210
adam@1388	2211 --n;
adam@1388	2212 ++s;
adam@1388	2213 }
adam@1388	2214
adam@1388	2215 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2216 }
adamc@821	2217
adamc@828	2218 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2219 return strlen(s);
adamc@828	2220 }
adamc@828	2221
adam@1388	2222 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2223 while (n > 0) {
adam@1388	2224 if (*s == 0)
adam@1388	2225 return uw_Basis_False;
adam@1388	2226
adam@1388	2227 --n;
adam@1388	2228 ++s;
adam@1388	2229 }
adam@1388	2230
adam@1388	2231 return uw_Basis_True;
adam@1388	2232 }
adam@1388	2233
adamc@829	2234 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2235 return strchr(s, ch);
adamc@829	2236 }
adamc@829	2237
adamc@831	2238 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2239 return strcspn(s, chs);
adamc@831	2240 }
adamc@831	2241
adamc@829	2242 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2243 uw_Basis_string r = strchr(s, ch);
adamc@829	2244 if (r == NULL)
adamc@829	2245 return NULL;
adamc@829	2246 else {
adamc@829	2247 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2248 *nr = r - s;
adamc@829	2249 return nr;
adamc@829	2250 }
adamc@829	2251 }
adamc@829	2252
adam@1390	2253 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2254 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2255 if (r == NULL)
adam@1390	2256 return NULL;
adam@1390	2257 else {
adam@1390	2258 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2259 *nr = r - haystack;
adam@1390	2260 return nr;
adam@1390	2261 }
adam@1390	2262 }
adam@1390	2263
adamc@311	2264 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2265 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2266 char *s;
adamc@180	2267
adamc@311	2268 uw_check_heap(ctx, len);
adamc@180	2269
adamc@666	2270 s = ctx->heap.front;
adamc@180	2271
adamc@180	2272 strcpy(s, s1);
adamc@180	2273 strcat(s, s2);
adamc@666	2274 ctx->heap.front += len;
adamc@180	2275
adamc@180	2276 return s;
adamc@180	2277 }
adamc@278	2278
adamc@829	2279 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2280 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2281
adamc@829	2282 if (start < 0)
adamc@829	2283 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2284 if (len < 0)
adamc@829	2285 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2286 if (start + len > full_len)
adamc@829	2287 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2288
adamc@829	2289 if (start + len == full_len)
adamc@829	2290 return &s[start];
adamc@829	2291 else {
adamc@829	2292 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2293 memcpy(r, s+start, len);
adamc@829	2294 r[len] = 0;
adamc@829	2295 return r;
adamc@829	2296 }
adamc@829	2297
adamc@829	2298 }
adamc@829	2299
adamc@1023	2300 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2301 char *r;
adamc@1023	2302
adamc@1023	2303 uw_check_heap(ctx, 2);
adamc@1023	2304 r = ctx->heap.front;
adamc@1023	2305 r[0] = ch;
adamc@1023	2306 r[1] = 0;
adamc@1023	2307
adamc@1023	2308 ctx->heap.front += 2;
adamc@1023	2309
adamc@1023	2310 return r;
adamc@1023	2311 }
adamc@1023	2312
adamc@737	2313 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2314 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2315 char *s;
adamc@278	2316
adamc@311	2317 uw_check_heap(ctx, len);
adamc@278	2318
adamc@666	2319 s = ctx->heap.front;
adamc@278	2320
adamc@278	2321 strcpy(s, s1);
adamc@666	2322 ctx->heap.front += len;
adamc@278	2323
adamc@278	2324 return s;
adamc@278	2325 }
adamc@280	2326
adam@1295	2327 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2328 if (ctx->error_message[0]) {
adam@1295	2329 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2330 ctx->error_message[0] = 0;
adam@1295	2331 return s;
adam@1295	2332 } else
adam@1295	2333 return NULL;
adam@1295	2334 }
adam@1295	2335
adamc@737	2336 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2337 if (s1)
adamc@737	2338 return uw_strdup(ctx, s1);
adamc@493	2339 else
adamc@493	2340 return NULL;
adamc@493	2341 }
adamc@493	2342
adamc@742	2343 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2344 char *r = uw_malloc(ctx, len);
adamc@742	2345 memcpy(r, p, len);
adamc@742	2346 return r;
adamc@742	2347 }
adamc@280	2348
adamc@879	2349 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2350
adamc@311	2351 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2352 int len;
adamc@281	2353 char *r;
adamc@281	2354
adamc@311	2355 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2356 r = ctx->heap.front;
adamc@879	2357 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2358 ctx->heap.front += len+1;
adamc@281	2359 return r;
adamc@281	2360 }
adamc@281	2361
adamc@467	2362 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2363 if (n == NULL)
adamc@467	2364 return "NULL";
adamc@467	2365 else
adamc@467	2366 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2367 }
adamc@467	2368
adamc@879	2369 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879	2370
adamc@311	2371 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2372 int len;
adamc@281	2373 char *r;
adamc@281	2374
adamc@311	2375 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2376 r = ctx->heap.front;
adamc@879	2377 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2378 ctx->heap.front += len+1;
adamc@281	2379 return r;
adamc@281	2380 }
adamc@281	2381
adamc@467	2382 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2383 if (n == NULL)
adamc@467	2384 return "NULL";
adamc@467	2385 else
adamc@467	2386 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2387 }
adamc@467	2388
adamc@879	2389 int uw_Estrings = 1;
adamc@879	2390 char *uw_sqlsuffixString = "::text";
adamc@1011	2391 char *uw_sqlsuffixChar = "::char";
adamc@281	2392
adamc@311	2393 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2394 char r, s2;
adamc@280	2395
adamc@879	2396 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2397
adamc@666	2398 r = s2 = ctx->heap.front;
adamc@879	2399 if (uw_Estrings)
adamc@879	2400 *s2++ = 'E';
adamc@280	2401 *s2++ = '\'';
adamc@280	2402
adamc@280	2403 for (; *s; s++) {
adamc@280	2404 char c = *s;
adamc@280	2405
adamc@280	2406 switch (c) {
adamc@280	2407 case '\'':
adamc@885	2408 if (uw_Estrings)
adamc@885	2409 strcpy(s2, "\\'");
adamc@885	2410 else
adamc@885	2411 strcpy(s2, "''");
adamc@280	2412 s2 += 2;
adamc@280	2413 break;
adamc@280	2414 case '\\':
adamc@885	2415 if (uw_Estrings) {
adamc@885	2416 strcpy(s2, "\\\\");
adamc@885	2417 s2 += 2;
adamc@885	2418 } else
adamc@885	2419 *s2++ = '\\';
adamc@280	2420 break;
adamc@280	2421 default:
adamc@1150	2422 if (isprint((int)c))
adamc@280	2423 *s2++ = c;
adamc@879	2424 else if (uw_Estrings) {
adamc@737	2425 sprintf(s2, "\\%03o", c);
adamc@280	2426 s2 += 4;
adamc@280	2427 }
adamc@879	2428 else
adamc@879	2429 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280	2430 }
adamc@280	2431 }
adamc@280	2432
adamc@879	2433 *s2++ = '\'';
adamc@879	2434 strcpy(s2, uw_sqlsuffixString);
adamc@879	2435 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2436 return r;
adamc@280	2437 }
adamc@281	2438
adamc@1011	2439 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2440 char r, s2;
adamc@1011	2441
adamc@1011	2442 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2443
adamc@1011	2444 r = s2 = ctx->heap.front;
adamc@1011	2445 if (uw_Estrings)
adamc@1011	2446 *s2++ = 'E';
adamc@1011	2447 *s2++ = '\'';
adamc@1011	2448
adamc@1011	2449 switch (c) {
adamc@1011	2450 case '\'':
adamc@1011	2451 if (uw_Estrings)
adamc@1011	2452 strcpy(s2, "\\'");
adamc@1011	2453 else
adamc@1011	2454 strcpy(s2, "''");
adamc@1011	2455 s2 += 2;
adamc@1011	2456 break;
adamc@1011	2457 case '\\':
adamc@1011	2458 if (uw_Estrings) {
adamc@1011	2459 strcpy(s2, "\\\\");
adamc@1011	2460 s2 += 2;
adamc@1011	2461 } else
adamc@1011	2462 *s2++ = '\\';
adamc@1011	2463 break;
adamc@1011	2464 default:
adamc@1150	2465 if (isprint((int)c))
adamc@1011	2466 *s2++ = c;
adamc@1011	2467 else if (uw_Estrings) {
adamc@1011	2468 sprintf(s2, "\\%03o", c);
adamc@1011	2469 s2 += 4;
adamc@1011	2470 }
adamc@1011	2471 else
adamc@1011	2472 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2473 }
adamc@1011	2474
adamc@1011	2475 *s2++ = '\'';
adamc@1011	2476 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2477 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2478 return r;
adamc@1011	2479 }
adamc@1011	2480
adamc@879	2481 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2482
adamc@737	2483 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2484 char r, s2;
adamc@737	2485 size_t i;
adamc@737	2486
adamc@879	2487 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737	2488
adamc@737	2489 r = s2 = ctx->heap.front;
adamc@879	2490 if (uw_Estrings)
adamc@879	2491 *s2++ = 'E';
adamc@737	2492 *s2++ = '\'';
adamc@737	2493
adamc@737	2494 for (i = 0; i < b.size; ++i) {
adamc@737	2495 char c = b.data[i];
adamc@737	2496
adamc@737	2497 switch (c) {
adamc@737	2498 case '\'':
adamc@885	2499 if (uw_Estrings)
adamc@885	2500 strcpy(s2, "\\'");
adamc@885	2501 else
adamc@885	2502 strcpy(s2, "''");
adamc@737	2503 s2 += 2;
adamc@737	2504 break;
adamc@737	2505 case '\\':
adamc@885	2506 if (uw_Estrings) {
adamc@885	2507 strcpy(s2, "\\\\\\\\");
adamc@885	2508 s2 += 4;
adamc@885	2509 } else
adamc@885	2510 *s2++ = '\\';
adamc@737	2511 break;
adamc@737	2512 default:
adamc@1150	2513 if (isprint((int)c))
adamc@737	2514 *s2++ = c;
adamc@879	2515 else if (uw_Estrings) {
adamc@737	2516 sprintf(s2, "\\\\%03o", c);
adamc@737	2517 s2 += 5;
adamc@737	2518 }
adamc@879	2519 else
adamc@879	2520 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737	2521 }
adamc@737	2522 }
adamc@737	2523
adamc@879	2524 *s2++ = '\'';
adamc@879	2525 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2526 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2527 return r;
adamc@737	2528 }
adamc@737	2529
adamc@682	2530 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2531 int len;
adamc@682	2532 char *r;
adamc@682	2533 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2534
adamc@682	2535 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2536 r = ctx->heap.front;
adamc@879	2537 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2538 ctx->heap.front += len+1;
adamc@682	2539 return r;
adamc@682	2540 }
adamc@682	2541
adamc@682	2542 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2543 int len;
adamc@682	2544 char *r;
adamc@682	2545 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2546
adamc@682	2547 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2548 r = ctx->heap.front;
adamc@682	2549 sprintf(r, "%lld%n", combo, &len);
adamc@682	2550 ctx->heap.front += len+1;
adamc@682	2551 return r;
adamc@682	2552 }
adamc@682	2553
adamc@879	2554 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2555
adamc@682	2556 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2557 int len;
adamc@682	2558 char *r;
adamc@682	2559
adamc@682	2560 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2561 r = ctx->heap.front;
adamc@879	2562 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2563 ctx->heap.front += len+1;
adamc@682	2564 return r;
adamc@682	2565 }
adamc@682	2566
adamc@682	2567 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2568 int len;
adamc@682	2569 char *r;
adamc@682	2570
adamc@682	2571 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2572 r = ctx->heap.front;
adamc@682	2573 sprintf(r, "%u%n", cli, &len);
adamc@682	2574 ctx->heap.front += len+1;
adamc@682	2575 return r;
adamc@682	2576 }
adamc@682	2577
adamc@467	2578 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2579 if (s == NULL)
adamc@467	2580 return "NULL";
adamc@467	2581 else
adamc@467	2582 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2583 }
adamc@467	2584
adamc@311	2585 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2586 if (b == uw_Basis_False)
adamc@281	2587 return "FALSE";
adamc@281	2588 else
adamc@281	2589 return "TRUE";
adamc@281	2590 }
adamc@282	2591
adamc@467	2592 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2593 if (b == NULL)
adamc@467	2594 return "NULL";
adamc@467	2595 else
adamc@467	2596 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2597 }
adamc@467	2598
adamc@439	2599 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2600 size_t len;
adamc@682	2601 char r, s;
adam@1392	2602 struct tm stm = {};
adam@1392	2603 stm.tm_isdst = -1;
adamc@682	2604
adam@1365	2605 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2606 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2607 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1367	2608 if (t.microseconds) {
adam@1367	2609 r = uw_malloc(ctx, len + 21);
adam@1367	2610 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1367	2611 } else {
adam@1367	2612 r = uw_malloc(ctx, len + 14);
adam@1367	2613 sprintf(r, "'%s'::timestamp", s);
adam@1367	2614 }
adamc@682	2615 return r;
adamc@682	2616 } else
adamc@682	2617 return "<Invalid time>";
adamc@682	2618 }
adamc@682	2619
adamc@682	2620 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2621 size_t len;
adamc@439	2622 char *r;
adam@1392	2623 struct tm stm = {};
adam@1392	2624 stm.tm_isdst = -1;
adamc@439	2625
adam@1365	2626 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2627 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2628 r = ctx->heap.front;
adamc@439	2629 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2630 ctx->heap.front += len+1;
adamc@439	2631 return r;
adamc@439	2632 } else
adamc@439	2633 return "<Invalid time>";
adamc@439	2634 }
adamc@439	2635
adam@1364	2636 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2637 size_t len;
adam@1364	2638 char *r;
adam@1392	2639 struct tm stm = {};
adam@1392	2640 stm.tm_isdst = -1;
adam@1364	2641
adam@1365	2642 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2643 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2644 r = ctx->heap.front;
adam@1365	2645 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2646 ctx->heap.front += len;
adam@1365	2647 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2648 ctx->heap.front += 8;
adam@1364	2649 return r;
adam@1364	2650 } else
adam@1364	2651 return "<Invalid time>";
adam@1364	2652 }
adam@1364	2653
adamc@467	2654 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2655 if (t == NULL)
adamc@467	2656 return "NULL";
adamc@467	2657 else
adamc@467	2658 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2659 }
adamc@467	2660
adamc@311	2661 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2662 static uw_Basis_int true = 1;
adamc@311	2663 static uw_Basis_int false = 0;
adamc@282	2664
adamc@311	2665 if (b == uw_Basis_False)
adamc@282	2666 return (char *)&false;
adamc@282	2667 else
adamc@282	2668 return (char *)&true;
adamc@282	2669 }
adamc@284	2670
adamc@311	2671 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2672 int len;
adamc@284	2673 char *r;
adamc@284	2674
adamc@311	2675 uw_check_heap(ctx, INTS_MAX);
adamc@666	2676 r = ctx->heap.front;
adamc@284	2677 sprintf(r, "%lld%n", n, &len);
adamc@666	2678 ctx->heap.front += len+1;
adamc@284	2679 return r;
adamc@284	2680 }
adamc@285	2681
adamc@311	2682 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2683 int len;
adamc@285	2684 char *r;
adamc@285	2685
adamc@311	2686 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2687 r = ctx->heap.front;
adamc@285	2688 sprintf(r, "%g%n", n, &len);
adamc@666	2689 ctx->heap.front += len+1;
adamc@285	2690 return r;
adamc@285	2691 }
adamc@285	2692
adamc@821	2693 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2694 char *r = uw_malloc(ctx, 2);
adamc@821	2695 r[0] = ch;
adamc@821	2696 r[1] = 0;
adamc@821	2697 return r;
adamc@821	2698 }
adamc@821	2699
adamc@311	2700 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2701 if (b == uw_Basis_False)
adamc@285	2702 return "False";
adamc@285	2703 else
adamc@285	2704 return "True";
adamc@285	2705 }
adamc@288	2706
adamc@436	2707 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436	2708 size_t len;
adamc@436	2709 char *r;
adam@1392	2710 struct tm stm = {};
adam@1392	2711 stm.tm_isdst = -1;
adamc@436	2712
adam@1365	2713 if (localtime_r(&t.seconds, &stm)) {
adamc@436	2714 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2715 r = ctx->heap.front;
adamc@436	2716 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2717 ctx->heap.front += len+1;
adamc@436	2718 return r;
adamc@436	2719 } else
adamc@436	2720 return "<Invalid time>";
adamc@436	2721 }
adamc@288	2722
adam@1359	2723 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2724 size_t len;
adam@1352	2725 char *r;
adam@1392	2726 struct tm stm = {};
adam@1392	2727 stm.tm_isdst = -1;
adam@1352	2728
adam@1365	2729 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2730 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2731 r = ctx->heap.front;
adam@1352	2732 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2733 ctx->heap.front += len+1;
adam@1352	2734 return r;
adam@1352	2735 } else
adam@1352	2736 return "<Invalid time>";
adam@1352	2737 }
adam@1352	2738
adamc@311	2739 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2740 char *endptr;
adamc@311	2741 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2742
adamc@288	2743 if (s != '\0' && endptr == '\0') {
adamc@311	2744 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2745 *r = n;
adamc@288	2746 return r;
adamc@288	2747 } else
adamc@288	2748 return NULL;
adamc@288	2749 }
adamc@289	2750
adamc@311	2751 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2752 char *endptr;
adamc@311	2753 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2754
adamc@289	2755 if (s != '\0' && endptr == '\0') {
adamc@311	2756 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2757 *r = n;
adamc@289	2758 return r;
adamc@289	2759 } else
adamc@289	2760 return NULL;
adamc@289	2761 }
adamc@289	2762
adamc@821	2763 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2764 if (s[0] == 0) {
adamc@821	2765 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2766 r[0] = 0;
adamc@821	2767 return r;
adamc@821	2768 } else if (s[1] != 0)
adamc@821	2769 return NULL;
adamc@821	2770 else {
adamc@821	2771 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2772 r[0] = s[0];
adamc@821	2773 return r;
adamc@821	2774 }
adamc@821	2775 }
adamc@821	2776
adamc@311	2777 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2778 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2779 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2780
adamc@289	2781 if (!strcasecmp (s, "True"))
adamc@289	2782 return &true;
adamc@289	2783 else if (!strcasecmp (s, "False"))
adamc@289	2784 return &false;
adamc@289	2785 else
adamc@289	2786 return NULL;
adamc@289	2787 }
adamc@292	2788
adamc@436	2789 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2790 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2791 struct tm stm = {};
adam@1392	2792 stm.tm_isdst = -1;
adamc@436	2793
adamc@439	2794 if (dot) {
adamc@439	2795 *dot = 0;
adamc@439	2796 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2797 *dot = '.';
adamc@439	2798 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2799 r->seconds = mktime(&stm);
adam@1365	2800 r->microseconds = 0;
adamc@439	2801 return r;
adamc@439	2802 }
adamc@439	2803 else {
adamc@439	2804 *dot = '.';
adamc@439	2805 return NULL;
adamc@439	2806 }
adamc@436	2807 }
adamc@439	2808 else {
adamc@439	2809 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2810 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2811 r->seconds = mktime(&stm);
adam@1365	2812 r->microseconds = 0;
adamc@439	2813 return r;
adamc@439	2814 }
adamc@439	2815 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2816 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2817 r->seconds = mktime(&stm);
adam@1365	2818 r->microseconds = 0;
adamc@439	2819 return r;
adamc@439	2820 }
adamc@439	2821 else
adamc@439	2822 return NULL;
adamc@439	2823 }
adamc@436	2824 }
adamc@436	2825
adam@1352	2826 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2827 char *end = strchr(s, 0);
adam@1374	2828 struct tm stm = {};
adam@1392	2829 stm.tm_isdst = -1;
adam@1352	2830
adam@1352	2831 if (strptime(s, fmt, &stm) == end) {
adam@1352	2832 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2833 r->seconds = mktime(&stm);
adam@1365	2834 r->microseconds = 0;
adam@1352	2835 return r;
adam@1352	2836 }
adam@1352	2837 else
adam@1352	2838 return NULL;
adam@1352	2839 }
adam@1352	2840
adamc@311	2841 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2842 char *endptr;
adamc@311	2843 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2844
adamc@292	2845 if (s != '\0' && endptr == '\0')
adamc@292	2846 return n;
adamc@292	2847 else
adam@1444	2848 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2849 }
adamc@293	2850
adamc@682	2851 #include <errno.h>
adamc@682	2852
adamc@678	2853 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2854 unsigned long long n;
adamc@682	2855
adamc@682	2856 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2857 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	2858 else {
adamc@682	2859 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2860 return ch;
adamc@682	2861 }
adamc@682	2862 }
adamc@682	2863
adamc@682	2864 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2865 char *endptr;
adamc@682	2866 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2867
adamc@678	2868 if (s != '\0' && endptr == '\0')
adamc@678	2869 return n;
adamc@678	2870 else
adam@1444	2871 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	2872 }
adamc@678	2873
adamc@311	2874 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2875 char *endptr;
adamc@311	2876 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2877
adamc@293	2878 if (s != '\0' && endptr == '\0')
adamc@293	2879 return n;
adamc@293	2880 else
adam@1444	2881 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2882 }
adamc@293	2883
adamc@821	2884 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2885 if (s[0] == 0)
adamc@821	2886 return 0;
adamc@821	2887 else if (s[1] != 0)
adam@1444	2888 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	2889 else
adamc@821	2890 return s[0];
adamc@821	2891 }
adamc@821	2892
adamc@311	2893 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2894 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2895 return uw_Basis_True;
adamc@296	2896 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2897 return uw_Basis_False;
adamc@293	2898 else
adam@1444	2899 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2900 }
adamc@436	2901
adam@1352	2902 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	2903 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	2904 struct tm stm = {};
adam@1392	2905 stm.tm_isdst = -1;
adam@1352	2906
adam@1352	2907 if (dot) {
adam@1352	2908 *dot = 0;
adam@1352	2909 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	2910 *dot = '.';
adam@1410	2911 char usec[] = "000000";
adam@1410	2912 int len = strlen(dot+1);
adam@1410	2913 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	2914 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	2915 return r;
adam@1352	2916 }
adam@1352	2917 else {
adam@1352	2918 *dot = '.';
adam@1444	2919 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	2920 }
adam@1352	2921 }
adam@1352	2922 else {
adam@1352	2923 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	2924 uw_Basis_time r = { mktime(&stm) };
adam@1365	2925 return r;
adam@1352	2926 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	2927 uw_Basis_time r = { mktime(&stm) };
adam@1365	2928 return r;
adam@1352	2929 } else
adam@1444	2930 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	2931 }
adam@1352	2932 }
adam@1352	2933
adamc@436	2934 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2935 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2936 struct tm stm = {};
adam@1392	2937 stm.tm_isdst = -1;
adamc@436	2938
adamc@438	2939 if (dot) {
adamc@438	2940 *dot = 0;
adamc@438	2941 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2942 *dot = '.';
adam@1365	2943 {
adam@1365	2944 uw_Basis_time r = { mktime(&stm) };
adam@1365	2945 return r;
adam@1365	2946 }
adamc@438	2947 }
adamc@438	2948 else {
adamc@438	2949 *dot = '.';
adam@1444	2950 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	2951 }
adamc@438	2952 }
adamc@438	2953 else {
adam@1365	2954 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	2955 uw_Basis_time r = { mktime(&stm) };
adam@1365	2956 return r;
adam@1365	2957 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	2958 uw_Basis_time r = { mktime(&stm) };
adam@1365	2959 return r;
adam@1365	2960 } else
adam@1444	2961 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	2962 }
adamc@436	2963 }
adamc@457	2964
adam@1352	2965 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	2966 char *end = strchr(s, 0);
adamc@939	2967 struct tm stm = {};
adam@1392	2968 stm.tm_isdst = -1;
adamc@939	2969
adam@1365	2970 if (strptime(s, fmt, &stm) == end) {
adam@1365	2971 uw_Basis_time r = { mktime(&stm) };
adam@1365	2972 return r;
adam@1365	2973 } else
adam@1444	2974 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	2975 }
adamc@939	2976
adamc@742	2977 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	2978 char *r = ctx->heap.front;
adamc@742	2979 uw_Basis_blob b = {len, r};
adamc@742	2980
adamc@742	2981 uw_check_heap(ctx, len);
adamc@742	2982
adamc@742	2983 while (*s) {
adamc@742	2984 if (s[0] == '\\') {
adamc@742	2985 if (s[1] == '\\') {
adamc@742	2986 *r++ = '\\';
adamc@742	2987 s += 2;
adamc@1153	2988 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adamc@742	2989 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	2990 s += 4;
adamc@742	2991 }
adamc@742	2992 else {
adamc@742	2993 *r++ = '\\';
adamc@742	2994 ++s;
adamc@742	2995 }
adamc@742	2996 } else {
adamc@742	2997 *r++ = s[0];
adamc@742	2998 ++s;
adamc@742	2999 }
adamc@742	3000 }
adamc@742	3001
adamc@742	3002 b.size = r - ctx->heap.front;
adamc@742	3003 ctx->heap.front = r;
adamc@742	3004 return b;
adamc@742	3005 }
adamc@742	3006
adam@1402	3007 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3008
adamc@463	3009 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3010 int len = strlen(c);
adamc@854	3011 char *p = ctx->outHeaders.start;
adamc@474	3012
adamc@1134	3013 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3014 char *p2;
adamc@474	3015 p += 13;
adamc@474	3016 p2 = strchr(p, '=');
adamc@474	3017
adamc@474	3018 if (p2) {
adamc@474	3019 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3020
adamc@474	3021 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3022 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3023 return NULL;
adamc@1052	3024 else {
adamc@1052	3025 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3026 memcpy(ret, p2+1, sz);
adamc@1052	3027 ret[sz] = 0;
adamc@1052	3028 return ret;
adamc@1052	3029 }
adamc@474	3030 }
adamc@474	3031 }
adamc@474	3032 }
adamc@463	3033
adamc@1134	3034 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3035 char *p2;
adamc@1051	3036
adamc@854	3037 while (1) {
adamc@1051	3038 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3039 if ((p2 = strchr(p, ';'))) {
adamc@1051	3040 size_t n = p2 - (p + len);
adamc@1051	3041 char *r = uw_malloc(ctx, n);
adamc@1051	3042 memcpy(r, p + 1 + len, n-1);
adamc@1051	3043 r[n-1] = 0;
adamc@1051	3044 return r;
adamc@1051	3045 } else
adamc@1051	3046 return p + 1 + len;
adamc@1134	3047 } else if ((p = strchr(p, ';')))
adamc@854	3048 p += 2;
adamc@463	3049 else
adamc@463	3050 return NULL;
adamc@463	3051 }
adamc@463	3052 }
adamc@792	3053
adamc@792	3054 return NULL;
adamc@457	3055 }
adamc@462	3056
adamc@1050	3057 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	3058 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3059 uw_write_header(ctx, c);
adamc@462	3060 uw_write_header(ctx, "=");
adamc@462	3061 uw_write_header(ctx, v);
adamc@466	3062 uw_write_header(ctx, "; path=");
adamc@466	3063 uw_write_header(ctx, prefix);
adamc@1050	3064 if (expires) {
adamc@1050	3065 char formatted[30];
adam@1392	3066 struct tm tm = {};
adam@1392	3067 tm.tm_isdst = -1;
adamc@1050	3068
adam@1365	3069 gmtime_r(&expires->seconds, &tm);
adamc@1050	3070
adamc@1050	3071 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3072
adamc@1050	3073 uw_write_header(ctx, "; expires=");
adamc@1050	3074 uw_write_header(ctx, formatted);
adamc@1050	3075 }
adamc@1050	3076 if (secure)
adamc@1050	3077 uw_write_header(ctx, "; secure");
adamc@462	3078 uw_write_header(ctx, "\r\n");
adamc@462	3079
adamc@462	3080 return uw_unit_v;
adamc@462	3081 }
adamc@667	3082
adamc@1050	3083 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3084 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3085 uw_write_header(ctx, c);
adamc@1050	3086 uw_write_header(ctx, "=; path=");
adamc@1050	3087 uw_write_header(ctx, prefix);
adamc@1052	3088 uw_write_header(ctx, "; " THE_PAST "\r\n");
adamc@1050	3089
adamc@1050	3090 return uw_unit_v;
adamc@1050	3091 }
adamc@1050	3092
adamc@1113	3093 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3094
adamc@682	3095 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3096 unsigned i;
adamc@682	3097 delta *d;
adamc@671	3098
adamc@682	3099 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3100 if (ctx->deltas[i].client == client)
adamc@682	3101 return &ctx->deltas[i];
adamc@671	3102
adamc@682	3103 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3104 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3105 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3106
adamc@682	3107 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3108 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3109 }
adamc@671	3110
adamc@682	3111 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3112 d->client = client;
adam@1369	3113 uw_buffer_reset(&d->msgs);
adamc@682	3114 return d;
adamc@671	3115 }
adamc@671	3116
adamc@668	3117 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3118 if (ctx->client == NULL)
adamc@682	3119 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3120
adamc@682	3121 return new_channel(ctx->client);
adamc@668	3122 }
adamc@668	3123
adamc@668	3124 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3125 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3126 size_t len;
adamc@682	3127 int preLen;
adamc@682	3128 char pre[INTS_MAX + 2];
adamc@668	3129
adamc@682	3130 len = strlen(msg);
adamc@682	3131
adamc@682	3132 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3133
adam@1369	3134 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3135 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3136 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3137
adamc@671	3138 return uw_unit_v;
adamc@668	3139 }
adamc@671	3140
adam@1327	3141 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3142 int i;
adamc@1131	3143 cleanup *cl;
adamc@1131	3144
adamc@1131	3145 if (ctx->client)
adamc@1131	3146 release_client(ctx->client);
adamc@1131	3147
adamc@1131	3148 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3149 cl->func(cl->arg);
adamc@1131	3150
adamc@1131	3151 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3152
adamc@1131	3153 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3154 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3155 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3156
adamc@1131	3157 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3158 if (ctx->transactionals[i].free)
adam@1327	3159 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3160
adamc@1144	3161 return ctx->app ? ctx->app->db_rollback(ctx) : 0;
adamc@1131	3162 }
adamc@1131	3163
adamc@671	3164 void uw_commit(uw_context ctx) {
adamc@1104	3165 int i;
adamc@1104	3166
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@1104	3172 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3173 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3174 if (ctx->transactionals[i].commit) {
adamc@1083	3175 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3176 if (uw_has_error(ctx)) {
adam@1327	3177 uw_rollback(ctx, 0);
adamc@1131	3178 return;
adamc@1131	3179 }
adamc@1131	3180 }
adamc@771	3181
adamc@1104	3182 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3183 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3184 if (ctx->transactionals[i].commit) {
adamc@1083	3185 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3186 if (uw_has_error(ctx)) {
adam@1327	3187 uw_rollback(ctx, 0);
adamc@1131	3188 return;
adamc@1131	3189 }
adamc@1131	3190 }
adamc@1131	3191
adamc@1131	3192 if (ctx->app->db_commit(ctx)) {
adamc@1131	3193 uw_set_error_message(ctx, "Error running SQL COMMIT");
adamc@1131	3194 return;
adamc@1131	3195 }
adamc@682	3196
adamc@682	3197 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3198 delta *d = &ctx->deltas[i];
adamc@682	3199 client *c = find_client(d->client);
adamc@682	3200
adam@1551	3201 assert (c != NULL);
adam@1551	3202 assert(c->mode == USED);
adamc@682	3203
adam@1447	3204 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3205 }
adamc@682	3206
adamc@682	3207 if (ctx->client)
adamc@685	3208 release_client(ctx->client);
adamc@771	3209
adamc@1104	3210 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3211 if (ctx->transactionals[i].free)
adam@1327	3212 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3213
adam@1413	3214 if (*ctx->page.front)
adam@1413	3215 uw_writec(ctx, 0);
adam@1413	3216
adamc@916	3217 // Splice script data into appropriate part of page
adamc@1065	3218 if (ctx->returning_indirectly \|\| ctx->script_header[0] == 0) {
adamc@995	3219 char *start = strstr(ctx->page.start, "<sc>");
adamc@995	3220 if (start) {
adam@1369	3221 memmove(start, start + 4, uw_buffer_used(&ctx->page) - (start - ctx->page.start) - 4);
adamc@995	3222 ctx->page.front -= 4;
adamc@995	3223 }
adam@1369	3224 } else if (uw_buffer_used(&ctx->script) == 0) {
adamc@916	3225 size_t len = strlen(ctx->script_header);
adamc@916	3226 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	3227 if (start) {
adam@1369	3228 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) - 4 + len);
adamc@917	3229 start = strstr(ctx->page.start, "<sc>");
adam@1369	3230 memmove(start + len, start + 4, uw_buffer_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	3231 ctx->page.front += len - 4;
adamc@916	3232 memcpy(start, ctx->script_header, len);
adamc@916	3233 }
adamc@916	3234 } else {
adam@1369	3235 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adamc@916	3236 size_t lenP = lenH + 40 + len;
adamc@916	3237 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	3238 if (start) {
adam@1369	3239 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) - 4 + lenP);
adamc@917	3240 start = strstr(ctx->page.start, "<sc>");
adam@1369	3241 memmove(start + lenP, start + 4, uw_buffer_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	3242 ctx->page.front += lenP - 4;
adamc@916	3243 memcpy(start, ctx->script_header, lenH);
adamc@916	3244 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916	3245 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916	3246 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916	3247 }
adamc@916	3248 }
adamc@671	3249 }
adamc@671	3250
adamc@683	3251
adamc@1113	3252 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3253
adamc@771	3254 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3255 uw_callback_with_retry free) {
adamc@771	3256 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3257 if (ctx->used_transactionals+1 > uw_transactionals_max)
adamc@1113	3258 uw_error(ctx, FATAL, "Exceeded limit on number of transactionals");
adamc@1084	3259 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3260 ++ctx->n_transactionals;
adamc@771	3261 }
adamc@771	3262
adamc@771	3263 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3264 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3265 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3266 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	3267 }
adamc@771	3268
adamc@683	3269
adamc@683	3270 // "Garbage collection"
adamc@683	3271
adamc@1121	3272 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3273 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3274
adamc@1121	3275 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3276 int r = setjmp(ctx->jmp_buf);
adamc@683	3277
adamc@1121	3278 if (r == 0)
adamc@1121	3279 uw_do_expunge(ctx, cli, data);
adamc@1121	3280 else
adamc@1121	3281 ctx->app->db_rollback(ctx);
adamc@1121	3282
adamc@1121	3283 uw_post_expunge(ctx, data);
adamc@683	3284
adamc@683	3285 return r;
adamc@683	3286 }
adamc@683	3287
adamc@683	3288 void uw_prune_clients(uw_context ctx) {
adamc@683	3289 client c, next, *prev = NULL;
adamc@683	3290 time_t cutoff;
adamc@683	3291
adamc@1094	3292 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3293
adamc@683	3294 pthread_mutex_lock(&clients_mutex);
adamc@683	3295
adamc@683	3296 for (c = clients_used; c; c = next) {
adamc@683	3297 next = c->next;
adamc@683	3298 pthread_mutex_lock(&c->lock);
adamc@685	3299 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3300 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3301 if (prev)
adamc@683	3302 prev->next = next;
adamc@683	3303 else
adamc@683	3304 clients_used = next;
adamc@684	3305 uw_reset(ctx);
adamc@683	3306 while (fk == UNLIMITED_RETRY) {
adamc@1121	3307 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3308 if (fk == UNLIMITED_RETRY)
adamc@684	3309 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3310 }
adamc@684	3311 if (fk == SUCCESS)
adamc@684	3312 free_client(c);
adamc@1121	3313 else
adamc@856	3314 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3315 }
adamc@683	3316 else
adamc@683	3317 prev = c;
adamc@683	3318 pthread_mutex_unlock(&c->lock);
adamc@683	3319 }
adamc@683	3320
adamc@683	3321 pthread_mutex_unlock(&clients_mutex);
adamc@683	3322 }
adamc@687	3323
adamc@687	3324 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3325 int r = setjmp(ctx->jmp_buf);
adamc@687	3326
adamc@687	3327 if (r == 0) {
adamc@1094	3328 if (ctx->app->db_begin(ctx))
adamc@687	3329 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@1094	3330 ctx->app->initializer(ctx);
adamc@1094	3331 if (ctx->app->db_commit(ctx))
adamc@687	3332 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3333 }
adamc@687	3334
adamc@687	3335 return r;
adamc@687	3336 }
adamc@717	3337
adamc@1065	3338 static int url_bad(uw_Basis_string s) {
adamc@1065	3339 for (; *s; ++s)
adamc@1153	3340 if (!isgraph((int)*s))
adamc@1065	3341 return 1;
adamc@1065	3342
adamc@1065	3343 return 0;
adamc@1065	3344 }
adamc@1065	3345
adamc@717	3346 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3347 if (url_bad(s))
adamc@1065	3348 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3349 if (ctx->app->check_url(s))
adamc@770	3350 return s;
adamc@770	3351 else
adamc@770	3352 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3353 }
adamc@734	3354
adamc@770	3355 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3356 if (url_bad(s))
adamc@1065	3357 return NULL;
adamc@1094	3358 if (ctx->app->check_url(s))
adamc@770	3359 return s;
adamc@770	3360 else
adamc@770	3361 return NULL;
adamc@770	3362 }
adamc@770	3363
adam@1465	3364 static int mime_format(const char *s) {
adamc@770	3365 for (; *s; ++s)
adamc@1153	3366 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.')
adamc@770	3367 return 0;
adamc@770	3368
adamc@770	3369 return 1;
adamc@770	3370 }
adamc@770	3371
adamc@741	3372 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3373 if (!mime_format(s))
adamc@770	3374 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3375
adamc@1094	3376 if (ctx->app->check_mime(s))
adamc@770	3377 return s;
adamc@770	3378 else
adamc@770	3379 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3380 }
adamc@770	3381
adamc@770	3382 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3383 if (!mime_format(s))
adamc@770	3384 return NULL;
adamc@770	3385
adamc@1094	3386 if (ctx->app->check_mime(s))
adamc@770	3387 return s;
adamc@770	3388 else
adamc@770	3389 return NULL;
adamc@741	3390 }
adamc@741	3391
adam@1465	3392 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3393 if (!mime_format(s))
adam@1465	3394 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3395
adam@1465	3396 if (ctx->app->check_requestHeader(s))
adam@1465	3397 return s;
adam@1465	3398 else
adam@1465	3399 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3400 }
adam@1465	3401
adam@1465	3402 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3403 if (!mime_format(s))
adam@1465	3404 return NULL;
adam@1465	3405
adam@1465	3406 if (ctx->app->check_requestHeader(s))
adam@1465	3407 return s;
adam@1465	3408 else
adam@1465	3409 return NULL;
adam@1465	3410 }
adam@1465	3411
adam@1465	3412 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3413 if (!mime_format(s))
adam@1465	3414 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3415
adam@1465	3416 if (ctx->app->check_responseHeader(s))
adam@1465	3417 return s;
adam@1465	3418 else
adam@1465	3419 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3420 }
adam@1465	3421
adam@1465	3422 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3423 if (!mime_format(s))
adam@1465	3424 return NULL;
adam@1465	3425
adam@1465	3426 if (ctx->app->check_responseHeader(s))
adam@1465	3427 return s;
adam@1465	3428 else
adam@1465	3429 return NULL;
adam@1465	3430 }
adam@1465	3431
adam@1465	3432 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3433 return uw_Basis_requestHeader(ctx, name);
adam@1465	3434 }
adam@1465	3435
adam@1465	3436 static int mime_value_format(const char *s) {
adam@1465	3437 for (; *s; ++s)
adam@1465	3438 if (s == '\r' \|\| s == '\n')
adam@1465	3439 return 0;
adam@1465	3440
adam@1465	3441 return 1;
adam@1465	3442 }
adam@1465	3443
adam@1465	3444 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3445 if (!mime_value_format(value))
adam@1465	3446 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3447
adam@1465	3448 uw_write_header(ctx, name);
adam@1465	3449 uw_write_header(ctx, ": ");
adam@1465	3450 uw_write_header(ctx, value);
adam@1465	3451 uw_write_header(ctx, "\r\n");
adam@1465	3452
adam@1465	3453 return uw_unit_v;
adam@1465	3454 }
adam@1465	3455
adamc@734	3456 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3457 return s ? s : "";
adamc@734	3458 }
adamc@734	3459
adamc@734	3460 extern int uw_hash_blocksize;
adamc@734	3461
adamc@734	3462 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3463 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3464 int i;
adamc@734	3465
adamc@734	3466 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3467 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3468
adamc@734	3469 return r;
adamc@734	3470 }
adamc@734	3471
adam@1512	3472 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3473 * optimizations that would enable timing attacks. See:
adam@1512	3474 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3475 */
adam@1512	3476 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3477 int i, x = 0, len1 = strlen(s1);
adam@1512	3478
adam@1512	3479 if (len1 != strlen(s2)) return 0;
adam@1512	3480
adam@1512	3481 for (i = 0; i < len1; ++i) {
adam@1512	3482 __asm__ __volatile__ ("");
adam@1512	3483 x \|= s1[i] ^ s2[i];
adam@1512	3484 }
adam@1512	3485
adam@1512	3486 return x == 0;
adam@1512	3487 }
adam@1512	3488
adamc@734	3489 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@1094	3490 return ctx->app->cookie_sig(ctx);
adamc@734	3491 }
adamc@737	3492
adamc@737	3493 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3494 return f.name;
adamc@737	3495 }
adamc@737	3496
adamc@740	3497 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3498 return f.type;
adamc@740	3499 }
adamc@740	3500
adamc@745	3501 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3502 return b.size;
adamc@745	3503 }
adamc@745	3504
adamc@1119	3505 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3506 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3507
adamc@1119	3508 return b;
adamc@1119	3509 }
adamc@1119	3510
adamc@737	3511 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3512 return f.data;
adamc@737	3513 }
adamc@741	3514
adam@1347	3515 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3516 return pb.type;
adam@1347	3517 }
adam@1347	3518
adam@1347	3519 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3520 return pb.data;
adam@1347	3521 }
adam@1347	3522
adam@1471	3523 static char *old_headers(uw_context ctx) {
adam@1471	3524 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3525 return NULL;
adam@1471	3526 else {
adam@1471	3527 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3528
adam@1471	3529 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3530 return NULL;
adam@1471	3531 else {
adam@1471	3532 s = strchr(s+15, '\n');
adam@1471	3533 if (s == NULL)
adam@1471	3534 return NULL;
adam@1471	3535 else
adam@1471	3536 return uw_strdup(ctx, s+1);
adam@1471	3537 }
adam@1471	3538 }
adam@1471	3539 }
adam@1471	3540
adamc@741	3541 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3542 cleanup *cl;
adamc@741	3543 int len;
adam@1471	3544 char *oldh;
adamc@741	3545
adam@1451	3546 if (!ctx->allowed_to_return_indirectly)
adam@1451	3547 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3548
adamc@1065	3549 ctx->returning_indirectly = 1;
adam@1471	3550 oldh = old_headers(ctx);
adam@1369	3551 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3552 uw_buffer_reset(&ctx->page);
adamc@741	3553
adamc@856	3554 uw_write_header(ctx, on_success);
adamc@856	3555 uw_write_header(ctx, "Content-Type: ");
adamc@741	3556 uw_write_header(ctx, mimeType);
adamc@741	3557 uw_write_header(ctx, "\r\nContent-Length: ");
adam@1369	3558 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3559 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3560 ctx->outHeaders.front += len;
adamc@1066	3561 uw_write_header(ctx, "\r\n");
adam@1471	3562 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3563
adam@1369	3564 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3565
adamc@741	3566 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3567 cl->func(cl->arg);
adamc@741	3568
adamc@741	3569 ctx->cleanup_front = ctx->cleanup;
adamc@741	3570
adamc@1065	3571 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3572 }
adamc@1065	3573
adamc@1065	3574 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3575 cleanup *cl;
adamc@1066	3576 char *s;
adam@1471	3577 char *oldh;
adamc@1065	3578
adam@1451	3579 if (!ctx->allowed_to_return_indirectly)
adam@1451	3580 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3581
adamc@1065	3582 ctx->returning_indirectly = 1;
adam@1471	3583 oldh = old_headers(ctx);
adam@1369	3584 uw_buffer_reset(&ctx->page);
adam@1369	3585 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3586 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3587 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3588 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3589
adam@1409	3590 if (on_success[0])
adam@1409	3591 uw_write_header(ctx, on_redirect);
adam@1409	3592 else
adam@1409	3593 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3594 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3595 if (s) {
adamc@1066	3596 char *s2;
adam@1409	3597 if (s[0] == '\n') ++s;
adam@1409	3598 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3599 *s2 = 0;
adamc@1066	3600 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3601 uw_write_header(ctx, s);
adamc@1066	3602 uw_write_header(ctx, "\n");
adamc@1066	3603 }
adamc@1066	3604 }
adamc@1066	3605 }
adamc@1066	3606
adamc@1065	3607 uw_write_header(ctx, "Location: ");
adamc@1065	3608 uw_write_header(ctx, url);
adamc@1065	3609 uw_write_header(ctx, "\r\n\r\n");
adam@1471	3610 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	3611
adamc@1065	3612 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3613 cl->func(cl->arg);
adamc@1065	3614
adamc@1065	3615 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3616
adamc@1065	3617 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3618 }
adamc@874	3619
adamc@874	3620 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	3621 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	3622
adamc@874	3623 for (; *s; ++s) {
adamc@874	3624 if (s[0] == '\'') {
adamc@874	3625 *r++ = '\'';
adamc@874	3626 for (++s; *s; ++s) {
adamc@874	3627 if (s[0] == '\'') {
adamc@874	3628 *r++ = '\'';
adamc@874	3629 break;
adamc@874	3630 } else if (s[0] == '\\') {
adam@1467	3631 *r++ = '\\';
adam@1467	3632 *r++ = s[1];
adam@1467	3633 ++s;
adamc@874	3634 } else
adamc@874	3635 *r++ = s[0];
adamc@874	3636 }
adamc@874	3637 if (*s == 0) break;
adam@1467	3638 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	3639 s += 3;
adamc@874	3640 else
adamc@874	3641 *r++ = s[0];
adamc@874	3642 }
adamc@874	3643
adam@1467	3644 *r = 0;
adam@1467	3645 return ret;
adamc@874	3646 }
adamc@874	3647
adamc@922	3648 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3649 va_list ap;
adamc@922	3650 size_t len = 1;
adamc@922	3651 char s, r, *s2;
adamc@922	3652
adamc@922	3653 va_start(ap, ctx);
adamc@922	3654 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3655 len += strlen(s);
adamc@922	3656 va_end(ap);
adamc@922	3657
adamc@922	3658 r = uw_malloc(ctx, len);
adamc@922	3659 va_start(ap, ctx);
adamc@922	3660 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3661 while (*s)
adamc@922	3662 s2++ = s++;
adamc@922	3663 va_end(ap);
adamc@922	3664 *s2 = 0;
adamc@922	3665
adamc@922	3666 return r;
adamc@922	3667 }
adamc@1006	3668
adam@1365	3669 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	3670
adamc@1006	3671 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	3672 uw_Basis_time r = { time(NULL) };
adam@1365	3673 return r;
adamc@1006	3674 }
adamc@1061	3675
adam@1369	3676 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	3677 tm.seconds += n;
adam@1365	3678 return tm;
adamc@1138	3679 }
adamc@1138	3680
adam@1514	3681 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	3682 return difftime(tm2.seconds, tm1.seconds);
adam@1514	3683 }
adam@1514	3684
adam@1514	3685 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	3686 return tm.seconds;
adam@1514	3687 }
adam@1514	3688
adamc@1061	3689 void uw_get_global(uw_context ctx, char name) {
adamc@1061	3690 int i;
adamc@1061	3691
adamc@1061	3692 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3693 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	3694 return ctx->globals[i].data;
adamc@1061	3695
adamc@1061	3696 return NULL;
adamc@1061	3697 }
adamc@1061	3698
adamc@1113	3699 size_t uw_globals_max = SIZE_MAX;
adamc@1113	3700
adamc@1061	3701 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	3702 int i;
adamc@1061	3703
adamc@1061	3704 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3705 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	3706 if (ctx->globals[i].free)
adamc@1061	3707 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	3708 ctx->globals[i].data = data;
adamc@1061	3709 ctx->globals[i].free = free;
adamc@1061	3710 return;
adamc@1061	3711 }
adamc@1089	3712
adamc@1113	3713 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	3714 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	3715
adamc@1061	3716 ++ctx->n_globals;
adamc@1061	3717 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	3718 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	3719 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	3720 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	3721 }
adamc@1061	3722
adamc@1061	3723 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	3724 return !!isalnum((int)c);
adamc@1061	3725 }
adamc@1061	3726
adamc@1061	3727 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	3728 return !!isalpha((int)c);
adamc@1061	3729 }
adamc@1061	3730
adamc@1061	3731 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	3732 return !!isblank((int)c);
adamc@1061	3733 }
adamc@1061	3734
adamc@1061	3735 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	3736 return !!iscntrl((int)c);
adamc@1061	3737 }
adamc@1061	3738
adamc@1061	3739 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3740 return !!isdigit((int)c);
adamc@1061	3741 }
adamc@1061	3742
adamc@1061	3743 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	3744 return !!isgraph((int)c);
adamc@1061	3745 }
adamc@1061	3746
adamc@1061	3747 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3748 return !!islower((int)c);
adamc@1061	3749 }
adamc@1061	3750
adamc@1061	3751 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	3752 return !!isprint((int)c);
adamc@1061	3753 }
adamc@1061	3754
adamc@1061	3755 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	3756 return !!ispunct((int)c);
adamc@1061	3757 }
adamc@1061	3758
adamc@1061	3759 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	3760 return !!isspace((int)c);
adamc@1061	3761 }
adamc@1063	3762
adamc@1061	3763 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3764 return !!isupper((int)c);
adamc@1061	3765 }
adamc@1061	3766
adamc@1061	3767 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3768 return !!isxdigit((int)c);
adamc@1061	3769 }
adamc@1061	3770
adamc@1061	3771 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3772 return tolower((int)c);
adamc@1061	3773 }
adamc@1061	3774
adamc@1061	3775 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3776 return toupper((int)c);
adamc@1061	3777 }
adamc@1066	3778
adamc@1128	3779 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	3780 return (unsigned char)c;
adamc@1128	3781 }
adamc@1128	3782
adamc@1128	3783 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	3784 return n;
adamc@1128	3785 }
adamc@1128	3786
adamc@1066	3787 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	3788 return ctx->current_url;
adamc@1066	3789 }
adamc@1066	3790
adamc@1066	3791 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	3792 ctx->current_url = s;
adamc@1066	3793 }
adamc@1114	3794
adamc@1114	3795 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	3796 ctx->deadline = n;
adamc@1114	3797 }
adamc@1114	3798
adamc@1114	3799 void uw_check_deadline(uw_context ctx) {
adamc@1114	3800 if (uw_time > ctx->deadline)
adamc@1114	3801 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	3802 }
adamc@1115	3803
adamc@1115	3804 size_t uw_database_max = SIZE_MAX;
adamc@1120	3805
adam@1389	3806 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@1389	3807 fprintf(stderr, "%s\n", s);
adam@1389	3808 return 0;
adam@1389	3809 }
adam@1389	3810
adamc@1120	3811 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
adam@1334	3812 if (ctx->log_debug)
adam@1334	3813 ctx->log_debug(ctx->logger_data, "%s\n", s);
adam@1334	3814 else
adam@1334	3815 fprintf(stderr, "%s\n", s);
adamc@1120	3816 return uw_unit_v;
adamc@1120	3817 }
adamc@1250	3818
adamc@1250	3819 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@1486	3820 uw_Basis_int ret;
adam@1486	3821 int r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@1486	3822
adam@1486	3823 if (r)
adam@1486	3824 return abs(ret);
adam@1486	3825 else
adam@1486	3826 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	3827 }
adam@1347	3828
adam@1347	3829 void uw_noPostBody(uw_context ctx) {
adam@1347	3830 ctx->hasPostBody = 0;
adam@1347	3831 }
adam@1347	3832
adam@1347	3833 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3834 ctx->hasPostBody = 1;
adam@1347	3835 ctx->postBody = pb;
adam@1347	3836 }
adam@1347	3837
adam@1347	3838 int uw_hasPostBody(uw_context ctx) {
adam@1347	3839 return ctx->hasPostBody;
adam@1347	3840 }
adam@1347	3841
adam@1386	3842 void uw_isPost(uw_context ctx) {
adam@1386	3843 ctx->isPost = 1;
adam@1386	3844 }
adam@1386	3845
adam@1386	3846 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	3847 return ctx->isPost;
adam@1386	3848 }
adam@1386	3849
adam@1485	3850 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	3851 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	3852 }
adam@1485	3853
adam@1370	3854 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	3855 ctx->queryString = s;
adam@1370	3856 }
adam@1370	3857
adam@1370	3858 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	3859 return ctx->queryString;
adam@1370	3860 }
adam@1370	3861
adam@1347	3862 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	3863 if (ctx->hasPostBody)
adam@1347	3864 return ctx->postBody;
adam@1347	3865 else
adam@1347	3866 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	3867 }
adam@1349	3868
adam@1349	3869 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	3870 int r = setjmp(ctx->jmp_buf);
adam@1349	3871
adam@1349	3872 if (r == 0) {
adam@1418	3873 if (ctx->app->db_begin(ctx))
adam@1418	3874 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1418	3875
adam@1349	3876 callback(ctx);
adam@1349	3877 }
adam@1349	3878
adam@1349	3879 return r;
adam@1349	3880 }
adam@1360	3881
adam@1360	3882 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	3883 char buf[14];
adam@1397	3884 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	3885 }
adam@1365	3886
adam@1365	3887 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	3888 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	3889 }
adam@1365	3890
adam@1365	3891 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	3892 return !!(t1.seconds < t2.seconds \|\| t1.microseconds < t2.microseconds);
adam@1365	3893 }
adam@1365	3894
adam@1365	3895 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	3896 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	3897 }
adam@1365	3898
adam@1372	3899 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	3900 struct tm stm = {};
adam@1375	3901 char *end = strchr(s, 0);
adam@1449	3902 stm.tm_isdst = -1;
adam@1375	3903
adam@1375	3904 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end) {
adam@1373	3905 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	3906
kkallio@1448	3907 r->seconds = timegm(&stm);
adam@1373	3908 r->microseconds = 0;
adam@1373	3909
adam@1373	3910 return r;
adam@1374	3911 }
adam@1374	3912 else
adam@1373	3913 return NULL;
adam@1372	3914 }
adam@1407	3915
adam@1407	3916 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	3917
adam@1407	3918 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	3919 int r = setjmp(ctx->jmp_buf);
adam@1407	3920
adam@1407	3921 if (ctx->app->on_error) {
adam@1407	3922 if (r == 0) {
adam@1407	3923 if (ctx->app->db_begin(ctx))
adam@1407	3924 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1407	3925
adam@1409	3926 uw_buffer_reset(&ctx->outHeaders);
adam@1409	3927 if (on_success[0])
adam@1409	3928 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	3929 else
adam@1409	3930 uw_write_header(ctx, "Status: ");
adam@1409	3931 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1407	3932 uw_write_header(ctx, "Content-type: text/html\r\n\r\n");
adam@1407	3933 uw_write(ctx, begin_xhtml);
adam@1407	3934 ctx->app->on_error(ctx, msg);
adam@1407	3935 uw_write(ctx, "</html>");
adam@1407	3936 }
adam@1407	3937
adam@1407	3938 return r;
adam@1407	3939 } else
adam@1407	3940 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	3941 }
adam@1451	3942
adam@1451	3943 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	3944 ctx->allowed_to_return_indirectly = 1;
adam@1451	3945 }
adam@1483	3946
adam@1483	3947 void uw_cutErrorLocation(char *s) {
adam@1483	3948 char *s2;
adam@1483	3949
adam@1483	3950 s2 = strstr(s, ": ");
adam@1483	3951 if (s2 == NULL \|\| strcspn(s, "<&") < s2 - s)
adam@1483	3952 return;
adam@1483	3953
adam@1483	3954 memmove(s, s2+2, strlen(s2+2)+1);
adam@1483	3955 }
adam@1556	3956
adam@1556	3957 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1556	3958 return uw_Basis_htmlifyInt(ctx, ctx->nextId++);
adam@1556	3959 }
adam@1571	3960
adam@1571	3961 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	3962 return n;
adam@1571	3963 }
adam@1571	3964
adam@1571	3965 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	3966 return ceil(n);
adam@1571	3967 }
adam@1571	3968
adam@1571	3969 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	3970 return trunc(n);
adam@1571	3971 }
adam@1571	3972
adam@1571	3973 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	3974 return round(n);
adam@1571	3975 }

Mercurial > urweb

annotate src/c/urweb.c @ 1579:e1f4ac9ca34b