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

annotate src/c/urweb.c @ 1699:3320eba6bad5

Clarify necessity of 'effectful' in the manual

author	Adam Chlipala <adam@chlipala.net>
date	Tue, 13 Mar 2012 13:36:26 -0400
parents	ae22d1fd9b80
children	6f2f74cc4ead

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

Mercurial > urweb

annotate src/c/urweb.c @ 1699:3320eba6bad5