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

annotate src/c/urweb.c @ 1668:64c1e65c2365

Prevent horrifying loops in unification variable graph

author	Adam Chlipala <adam@chlipala.net>
date	Mon, 09 Jan 2012 16:20:10 -0500
parents	f9ffe8497742
children	a54d223c3a7f

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

Mercurial > urweb

annotate src/c/urweb.c @ 1668:64c1e65c2365