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

annotate src/c/urweb.c @ 1676:266814b15dd6

Small fix to previous commit

author	Adam Chlipala <adam@chlipala.net>
date	Wed, 11 Jan 2012 14:52:31 -0500
parents	ea131de361d9
children	3636d0eeb39c

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

Mercurial > urweb

annotate src/c/urweb.c @ 1676:266814b15dd6