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

annotate src/c/urweb.c @ 1933:8e6e3d9cea22

RAND_bytes isn't thread-safe, so wrap it with a lock

author	Adam Chlipala <adam@chlipala.net>
date	Wed, 11 Dec 2013 18:54:42 -0500
parents	98895243b5b6
children	420d129c4174

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@1707	162 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@1113	163 size_t uw_messages_max = SIZE_MAX;
adamc@1113	164 size_t uw_clients_max = SIZE_MAX;
adamc@1113	165
adamc@1121	166 void *uw_init_client_data();
adamc@1121	167 void uw_free_client_data(void *);
adamc@1121	168 void uw_copy_client_data(void dst, void src);
adamc@1121	169
adamc@682	170 static client *new_client() {
adamc@667	171 client *c;
adamc@667	172
adamc@667	173 pthread_mutex_lock(&clients_mutex);
adamc@667	174
adamc@667	175 if (clients_free) {
adamc@667	176 c = clients_free;
adamc@682	177 clients_free = clients_free->next;
adamc@667	178 }
adam@1672	179 else if (n_clients >= uw_clients_max) {
adam@1672	180 pthread_mutex_unlock(&clients_mutex);
adamc@1113	181 return NULL;
adam@1672	182 } else {
adamc@667	183 ++n_clients;
adamc@667	184 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	185 c = malloc(sizeof(client));
adamc@667	186 c->id = n_clients-1;
adamc@682	187 pthread_mutex_init(&c->lock, NULL);
adamc@689	188 pthread_mutex_init(&c->pull_lock, NULL);
adam@1369	189 uw_buffer_init(uw_messages_max, &c->msgs, 0);
adamc@667	190 clients[n_clients-1] = c;
adamc@667	191 }
adamc@667	192
adamc@682	193 pthread_mutex_lock(&c->lock);
adamc@667	194 c->mode = USED;
adamc@682	195 c->pass = rand();
adamc@682	196 c->sock = -1;
adamc@682	197 c->last_contact = time(NULL);
adam@1369	198 uw_buffer_reset(&c->msgs);
adamc@682	199 c->n_channels = 0;
adamc@685	200 c->refcount = 0;
adamc@1121	201 c->data = uw_init_client_data();
adamc@682	202 pthread_mutex_unlock(&c->lock);
adamc@682	203
adamc@682	204 c->next = clients_used;
adamc@682	205 clients_used = c;
adamc@667	206
adamc@667	207 pthread_mutex_unlock(&clients_mutex);
adamc@667	208
adamc@667	209 return c;
adamc@667	210 }
adamc@667	211
adamc@685	212 static void use_client(client *c) {
adamc@685	213 pthread_mutex_lock(&c->lock);
adamc@685	214 ++c->refcount;
adamc@685	215 pthread_mutex_unlock(&c->lock);
adamc@689	216 pthread_mutex_lock(&c->pull_lock);
adamc@685	217 }
adamc@685	218
adamc@685	219 static void release_client(client *c) {
adamc@689	220 pthread_mutex_unlock(&c->pull_lock);
adamc@685	221 pthread_mutex_lock(&c->lock);
adamc@685	222 --c->refcount;
adamc@685	223 pthread_mutex_unlock(&c->lock);
adamc@685	224 }
adamc@685	225
adamc@856	226 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adam@1707	227 static pthread_t pruning_thread;
adam@1707	228 static int pruning_thread_initialized = 0;
adamc@667	229
adamc@682	230 static client *find_client(unsigned id) {
adamc@667	231 client *c;
adam@1708	232 int i_am_pruner = pruning_thread_initialized && pthread_equal(pruning_thread, pthread_self());
adam@1708	233
adam@1708	234 if (!i_am_pruner) pthread_mutex_lock(&clients_mutex);
adamc@667	235
adamc@667	236 if (id >= n_clients) {
adam@1708	237 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	238 return NULL;
adamc@667	239 }
adamc@667	240
adamc@667	241 c = clients[id];
adamc@667	242
adam@1708	243 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	244 return c;
adamc@668	245 }
adamc@668	246
adamc@856	247 static char *on_success = "HTTP/1.1 200 OK\r\n";
adam@1409	248 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	249
adamc@856	250 void uw_set_on_success(char *s) {
adamc@856	251 on_success = s;
adamc@856	252 }
adamc@856	253
adam@1552	254 static void chastise(int (send)(int sockfd, const void buf, ssize_t len), int sock) {
adam@1552	255 send(sock, on_success, strlen(on_success));
adam@1552	256 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1552	257 send(sock, "R", 1);
adam@1552	258 close(sock);
adam@1552	259 }
adam@1552	260
adamc@863	261 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	262 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	263 int (*close)(int fd),
adamc@864	264 void *logger_data, uw_logger log_error) {
adamc@682	265 client *c = find_client(id);
adamc@668	266
adamc@668	267 if (c == NULL) {
adam@1552	268 chastise(send, sock);
adamc@864	269 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	270 return;
adamc@667	271 }
adamc@667	272
adamc@682	273 pthread_mutex_lock(&c->lock);
adamc@671	274
adamc@682	275 if (c->mode != USED) {
adamc@682	276 pthread_mutex_unlock(&c->lock);
adam@1552	277 chastise(send, sock);
adamc@864	278 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	279 return;
adamc@667	280 }
adamc@667	281
adamc@682	282 if (pass != c->pass) {
adamc@682	283 pthread_mutex_unlock(&c->lock);
adam@1552	284 chastise(send, sock);
adamc@864	285 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	286 return;
adamc@667	287 }
adamc@667	288
adamc@682	289 if (c->sock != -1) {
adamc@863	290 c->close(c->sock);
adamc@682	291 c->sock = -1;
adamc@682	292 }
adamc@667	293
adamc@682	294 c->last_contact = time(NULL);
adamc@682	295
adam@1369	296 if (uw_buffer_used(&c->msgs) > 0) {
adamc@863	297 send(sock, on_success, strlen(on_success));
adamc@863	298 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1369	299 send(sock, c->msgs.start, uw_buffer_used(&c->msgs));
adam@1369	300 uw_buffer_reset(&c->msgs);
adamc@667	301 close(sock);
adamc@667	302 }
adamc@863	303 else {
adamc@682	304 c->sock = sock;
adamc@863	305 c->send = send;
adamc@863	306 c->close = close;
adamc@863	307 }
adamc@667	308
adamc@682	309 pthread_mutex_unlock(&c->lock);
adamc@667	310 }
adamc@667	311
adamc@682	312 static void free_client(client *c) {
adamc@682	313 c->mode = UNUSED;
adamc@682	314 c->pass = -1;
adamc@667	315
adamc@682	316 c->next = clients_free;
adamc@682	317 clients_free = c;
adamc@667	318 }
adamc@667	319
adamc@682	320 static uw_Basis_channel new_channel(client *c) {
adamc@682	321 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	322 return ch;
adamc@668	323 }
adamc@668	324
adam@1447	325 static void client_send(client c, uw_buffer msg, const char *script, int script_len) {
adamc@685	326 pthread_mutex_lock(&c->lock);
adamc@671	327
adamc@682	328 if (c->sock != -1) {
adamc@863	329 c->send(c->sock, on_success, strlen(on_success));
adamc@863	330 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1447	331 if (script_len > 0) {
adam@1447	332 c->send(c->sock, "E\n", 2);
adam@1447	333 c->send(c->sock, script, script_len);
adam@1447	334 c->send(c->sock, "\n", 1);
adam@1447	335 }
adam@1369	336 c->send(c->sock, msg->start, uw_buffer_used(msg));
adamc@863	337 c->close(c->sock);
adamc@682	338 c->sock = -1;
adam@1665	339 } else if (uw_buffer_append(&c->msgs, msg->start, uw_buffer_used(msg)))
adamc@1113	340 fprintf(stderr, "Client message buffer size exceeded");
adamc@671	341
adamc@685	342 pthread_mutex_unlock(&c->lock);
adamc@668	343 }
adamc@668	344
adamc@668	345
adamc@668	346 // Global entry points
adamc@668	347
adamc@1164	348 extern void uw_global_custom();
adamc@1104	349 extern void uw_init_crypto();
adamc@1104	350
adamc@668	351 void uw_global_init() {
adamc@668	352 srand(time(NULL) ^ getpid());
adamc@668	353
adamc@668	354 clients = malloc(0);
adamc@1104	355
adamc@1164	356 uw_global_custom();
adamc@1104	357 uw_init_crypto();
adamc@1094	358 }
adamc@1094	359
adamc@1094	360 void uw_app_init(uw_app *app) {
adamc@1094	361 app->client_init();
adamc@668	362 }
adamc@668	363
adam@1332	364 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114	365
adamc@668	366
adamc@667	367 // Single-request state
adamc@667	368
adamc@323	369 typedef struct regions {
adamc@323	370 struct regions *next;
adamc@323	371 } regions;
adamc@323	372
adamc@425	373 typedef struct {
adamc@425	374 void (func)(void);
adamc@425	375 void *arg;
adamc@425	376 } cleanup;
adamc@425	377
adamc@671	378 typedef struct {
adamc@682	379 unsigned client;
adam@1369	380 uw_buffer msgs;
adamc@682	381 } delta;
adamc@671	382
adamc@737	383 typedef enum {
adamc@759	384 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	385 } input_kind;
adamc@737	386
adamc@756	387 typedef struct input {
adamc@737	388 input_kind kind;
adamc@737	389 union {
adamc@737	390 char *normal;
adamc@739	391 uw_Basis_file file;
adamc@756	392 struct {
adamc@759	393 struct input fields, parent;
adamc@756	394 } subform;
adamc@759	395 struct {
adamc@759	396 struct input entries, parent;
adamc@759	397 } subforms;
adamc@759	398 struct {
adamc@759	399 struct input fields, next, *parent;
adamc@759	400 } entry;
adamc@737	401 } data;
adamc@737	402 } input;
adamc@737	403
adamc@771	404 typedef struct {
adamc@771	405 void *data;
adam@1327	406 uw_callback commit, rollback;
adam@1327	407 uw_callback_with_retry free;
adamc@771	408 } transactional;
adamc@771	409
adamc@1061	410 typedef struct {
adamc@1061	411 char *name;
adamc@1061	412 void *data;
adamc@1061	413 void (free)(void);
adamc@1061	414 } global;
adamc@1061	415
adamc@311	416 struct uw_context {
adamc@1094	417 uw_app *app;
adam@1446	418 int id;
adamc@1094	419
adamc@854	420 char (get_header)(void , const char );
adamc@854	421 void *get_header_data;
adamc@457	422
adam@1799	423 char (get_env)(void , const char );
adam@1799	424 void *get_env_data;
adam@1799	425
adam@1369	426 uw_buffer outHeaders, page, heap, script;
adam@1451	427 int allowed_to_return_indirectly, returning_indirectly;
adamc@759	428 input inputs, subinputs, *cur_container;
adamc@1094	429 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	430
adam@1446	431 unsigned long long source_count;
adamc@562	432
adamc@272	433 void *db;
adam@1931	434 int transaction_started;
adamc@272	435
adamc@167	436 jmp_buf jmp_buf;
adamc@167	437
adamc@323	438 regions *regions;
adamc@323	439
adamc@425	440 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	441
adamc@1094	442 const char *script_header;
adamc@643	443
adamc@736	444 int needs_push, needs_sig;
adamc@693	445
adamc@682	446 size_t n_deltas, used_deltas;
adamc@682	447 delta *deltas;
adamc@671	448
adamc@682	449 client *client;
adamc@682	450
adamc@771	451 transactional *transactionals;
adamc@771	452 size_t n_transactionals, used_transactionals;
adamc@771	453
adamc@1061	454 global *globals;
adamc@1061	455 size_t n_globals;
adamc@1061	456
adamc@1066	457 char *current_url;
adamc@1066	458
adamc@1114	459 int deadline;
adamc@1114	460
adamc@1121	461 void *client_data;
adamc@1121	462
adam@1334	463 void *logger_data;
adam@1334	464 uw_logger log_debug;
adam@1334	465
adam@1386	466 int isPost, hasPostBody;
adam@1347	467 uw_Basis_postBody postBody;
adam@1370	468 uw_Basis_string queryString;
adam@1347	469
adam@1556	470 unsigned nextId;
adam@1556	471
adam@1782	472 int amInitializing;
adam@1782	473
adamc@167	474 char error_message[ERROR_BUF_LEN];
adam@1877	475
adam@1877	476 int usedSig, needsResig;
adamc@117	477 };
adamc@117	478
adamc@1113	479 size_t uw_headers_max = SIZE_MAX;
adamc@1113	480 size_t uw_page_max = SIZE_MAX;
adamc@1113	481 size_t uw_heap_max = SIZE_MAX;
adamc@1113	482 size_t uw_script_max = SIZE_MAX;
adamc@1113	483
adam@1446	484 uw_context uw_init(int id, void *logger_data, uw_logger log_debug) {
adamc@311	485 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	486
adamc@1094	487 ctx->app = NULL;
adam@1446	488 ctx->id = id;
adamc@1094	489
adamc@854	490 ctx->get_header = NULL;
adamc@854	491 ctx->get_header_data = NULL;
adamc@457	492
adam@1799	493 ctx->get_env = NULL;
adam@1799	494 ctx->get_env_data = NULL;
adam@1799	495
adam@1413	496 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413	497 ctx->outHeaders.start[0] = 0;
adam@1413	498 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413	499 ctx->page.start[0] = 0;
adam@1451	500 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	501 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369	502 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667	503 ctx->script.start[0] = 0;
adamc@136	504
adamc@1094	505 ctx->inputs = malloc(0);
adamc@759	506 ctx->cur_container = NULL;
adamc@756	507 ctx->subinputs = malloc(0);
adamc@1094	508 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	509
adamc@272	510 ctx->db = NULL;
adam@1931	511 ctx->transaction_started = 0;
adamc@272	512
adamc@323	513 ctx->regions = NULL;
adamc@323	514
adamc@425	515 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	516
adamc@643	517 ctx->script_header = "";
adamc@693	518 ctx->needs_push = 0;
adamc@736	519 ctx->needs_sig = 0;
adamc@1104	520
adamc@565	521 ctx->source_count = 0;
adamc@562	522
adamc@682	523 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	524 ctx->deltas = malloc(0);
adamc@671	525
adamc@700	526 ctx->client = NULL;
adamc@700	527
adamc@700	528 ctx->error_message[0] = 0;
adamc@700	529
adamc@771	530 ctx->transactionals = malloc(0);
adamc@771	531 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	532
adamc@1061	533 ctx->globals = malloc(0);
adamc@1061	534 ctx->n_globals = 0;
adamc@1061	535
adamc@1066	536 ctx->current_url = "";
adamc@1066	537
adamc@1114	538 ctx->deadline = INT_MAX;
adamc@1114	539
adamc@1121	540 ctx->client_data = uw_init_client_data();
adamc@1121	541
adam@1334	542 ctx->logger_data = logger_data;
adam@1334	543 ctx->log_debug = log_debug;
adam@1334	544
adam@1386	545 ctx->isPost = ctx->hasPostBody = 0;
adam@1347	546
adam@1370	547 ctx->queryString = NULL;
adam@1370	548
adam@1556	549 ctx->nextId = 0;
adam@1556	550
adam@1782	551 ctx->amInitializing = 0;
adam@1782	552
adam@1877	553 ctx->usedSig = 0;
adam@1877	554 ctx->needsResig = 0;
adam@1877	555
adamc@117	556 return ctx;
adamc@106	557 }
adamc@106	558
adamc@1113	559 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	560
adamc@1121	561 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	562 return ctx->app;
adamc@1121	563 }
adamc@1121	564
adamc@1113	565 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	566 ctx->app = app;
adamc@1094	567
adamc@1105	568 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	569 if (app->inputs_len > uw_inputs_max)
adamc@1113	570 return 1;
adamc@1113	571
adamc@1094	572 ctx->sz_inputs = app->inputs_len;
adamc@1094	573 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	574 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	575 }
adamc@1134	576
adamc@1134	577 return 0;
adamc@1094	578 }
adamc@1094	579
adamc@1121	580 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	581 uw_copy_client_data(ctx->client_data, data);
adamc@1121	582 }
adamc@1121	583
adamc@311	584 void uw_set_db(uw_context ctx, void *db) {
adamc@272	585 ctx->db = db;
adamc@272	586 }
adamc@272	587
adamc@311	588 void *uw_get_db(uw_context ctx) {
adamc@272	589 return ctx->db;
adamc@272	590 }
adamc@272	591
adamc@311	592 void uw_free(uw_context ctx) {
adamc@671	593 size_t i;
adamc@671	594
adam@1369	595 uw_buffer_free(&ctx->outHeaders);
adam@1369	596 uw_buffer_free(&ctx->script);
adam@1369	597 uw_buffer_free(&ctx->page);
adam@1369	598 uw_buffer_free(&ctx->heap);
adamc@144	599 free(ctx->inputs);
adamc@756	600 free(ctx->subinputs);
adamc@425	601 free(ctx->cleanup);
adamc@771	602 free(ctx->transactionals);
adamc@1121	603 uw_free_client_data(ctx->client_data);
adamc@671	604
adamc@682	605 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	606 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	607 free(ctx->deltas);
adamc@671	608
adamc@1061	609 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	610 if (ctx->globals[i].free)
adamc@1089	611 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	612 free(ctx->globals);
adamc@1061	613
adamc@136	614 free(ctx);
adamc@136	615 }
adamc@136	616
adamc@562	617 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	618 uw_buffer_reset(&ctx->outHeaders);
adam@1369	619 uw_buffer_reset(&ctx->script);
adamc@667	620 ctx->script.start[0] = 0;
adam@1369	621 uw_buffer_reset(&ctx->page);
adam@1451	622 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	623 uw_buffer_reset(&ctx->heap);
adamc@323	624 ctx->regions = NULL;
adamc@425	625 ctx->cleanup_front = ctx->cleanup;
adamc@682	626 ctx->used_deltas = 0;
adamc@682	627 ctx->client = NULL;
adamc@759	628 ctx->cur_container = NULL;
adamc@771	629 ctx->used_transactionals = 0;
adamc@1117	630 ctx->script_header = "";
adam@1370	631 ctx->queryString = NULL;
adam@1556	632 ctx->nextId = 0;
adam@1782	633 ctx->amInitializing = 0;
adam@1877	634 ctx->usedSig = 0;
adam@1877	635 ctx->needsResig = 0;
adam@1931	636 ctx->transaction_started = 0;
adamc@167	637 }
adamc@167	638
adamc@562	639 void uw_reset_keep_request(uw_context ctx) {
adamc@562	640 uw_reset_keep_error_message(ctx);
adamc@562	641 ctx->error_message[0] = 0;
adamc@167	642 }
adamc@167	643
adamc@311	644 void uw_reset(uw_context ctx) {
adamc@311	645 uw_reset_keep_request(ctx);
adamc@1105	646 if (ctx->app)
adamc@1105	647 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	648 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461	649 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adamc@144	650 }
adamc@144	651
adamc@311	652 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	653 int r = setjmp(ctx->jmp_buf);
adamc@272	654
adamc@1105	655 if (r == 0 && ctx->app)
adamc@1094	656 ctx->app->db_init(ctx);
adamc@272	657
adamc@272	658 return r;
adamc@272	659 }
adamc@272	660
adamc@1118	661 void uw_close(uw_context ctx) {
adamc@1118	662 ctx->app->db_close(ctx);
adamc@1118	663 }
adamc@1118	664
adam@1446	665 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	666 return ctx->get_header(ctx->get_header_data, h);
adam@1446	667 }
adam@1446	668
adamc@854	669 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	670 ctx->get_header = get_header;
adamc@854	671 ctx->get_header_data = get_header_data;
adamc@742	672 }
adamc@742	673
adam@1799	674 void uw_set_env(uw_context ctx, char (get_env)(void , const char ), void *get_env_data) {
adam@1799	675 ctx->get_env = get_env;
adam@1799	676 ctx->get_env_data = get_env_data;
adam@1799	677 }
adam@1799	678
adamc@801	679 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	680 va_list ap;
adamc@801	681 va_start(ap, fmt);
adamc@801	682
adamc@801	683 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	684 }
adamc@801	685
adamc@1131	686 int uw_has_error(uw_context ctx) {
adamc@1131	687 return ctx->error_message[0] != 0;
adamc@1131	688 }
adamc@1131	689
adamc@311	690 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	691 cleanup *cl;
adamc@425	692
adamc@167	693 va_list ap;
adamc@167	694 va_start(ap, fmt);
adamc@167	695
adamc@167	696 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	697
adamc@425	698 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	699 cl->func(cl->arg);
adamc@425	700
adamc@425	701 ctx->cleanup_front = ctx->cleanup;
adamc@425	702
adamc@190	703 longjmp(ctx->jmp_buf, fk);
adamc@167	704 }
adamc@167	705
adamc@1113	706 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	707
adamc@425	708 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	709 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	710 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	711 if (len == 0)
adamc@425	712 newLen = 1;
adamc@425	713 else
adamc@428	714 newLen = len * 2;
adamc@1113	715
adamc@1134	716 if (newLen > uw_cleanup_max) {
adamc@1113	717 if (len+1 <= uw_cleanup_max)
adamc@1113	718 newLen = uw_cleanup_max;
adamc@1113	719 else
adamc@1113	720 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	721 }
adamc@1113	722
adamc@470	723 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	724 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	725 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	726 }
adamc@425	727
adamc@425	728 ctx->cleanup_front->func = func;
adamc@425	729 ctx->cleanup_front->arg = arg;
adamc@425	730 ++ctx->cleanup_front;
adamc@425	731 }
adamc@425	732
adam@1444	733 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	734
adamc@682	735 void uw_login(uw_context ctx) {
adamc@693	736 if (ctx->needs_push) {
adamc@682	737 char id_s, pass_s;
adamc@682	738
adamc@682	739 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682	740 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682	741 unsigned id = atoi(id_s);
adamc@682	742 int pass = atoi(pass_s);
adamc@682	743 client *c = find_client(id);
adamc@682	744
adamc@682	745 if (c == NULL)
adam@1444	746 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	747 else {
adamc@685	748 use_client(c);
adamc@682	749 ctx->client = c;
adamc@682	750
adamc@682	751 if (c->mode != USED)
adamc@682	752 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682	753 if (c->pass != pass)
adamc@682	754 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682	755 }
adamc@682	756 } else {
adamc@682	757 client *c = new_client();
adamc@1113	758
adamc@1113	759 if (c == NULL)
adamc@1113	760 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adamc@1113	761
adamc@685	762 use_client(c);
adamc@1121	763 uw_copy_client_data(c->data, ctx->client_data);
adamc@682	764 ctx->client = c;
adamc@864	765 }
adamc@682	766 }
adamc@682	767 }
adamc@682	768
adamc@671	769 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	770 int r = setjmp(ctx->jmp_buf);
adamc@671	771
adam@1931	772 if (r == 0)
adam@1931	773 ctx->app->handle(ctx, path);
adam@1931	774
adam@1931	775 return r;
adam@1931	776 }
adam@1931	777
adam@1931	778 void uw_ensure_transaction(uw_context ctx) {
adam@1931	779 if (!ctx->transaction_started) {
adamc@1094	780 if (ctx->app->db_begin(ctx))
adamc@671	781 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1931	782 ctx->transaction_started = 1;
adamc@671	783 }
adamc@671	784 }
adamc@671	785
adamc@772	786 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	787 if (ctx->client == NULL)
adamc@682	788 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	789
adamc@682	790 return ctx->client->id;
adamc@682	791 }
adamc@682	792
adamc@425	793 void uw_pop_cleanup(uw_context ctx) {
adamc@425	794 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	795 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	796
adamc@425	797 --ctx->cleanup_front;
adamc@425	798 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	799 }
adamc@425	800
adamc@311	801 char *uw_error_message(uw_context ctx) {
adamc@167	802 return ctx->error_message;
adamc@167	803 }
adamc@167	804
adamc@1115	805 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	806 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	807 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	808 }
adamc@1115	809
adamc@759	810 static input *INP(uw_context ctx) {
adamc@759	811 if (ctx->cur_container == NULL)
adamc@759	812 return ctx->inputs;
adamc@759	813 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	814 return ctx->cur_container->data.subform.fields;
adamc@759	815 else if (ctx->cur_container->kind == ENTRY)
adamc@759	816 return ctx->cur_container->data.entry.fields;
adamc@759	817 else
adamc@760	818 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	819 }
adamc@759	820
adamc@760	821 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	822 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	823 *ptr += new_start - old_start;
adamc@760	824 }
adamc@760	825
adamc@760	826 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	827 switch (x->kind) {
adamc@759	828 case SUBFORM:
adamc@760	829 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	830 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	831 break;
adamc@759	832 case SUBFORMS:
adamc@760	833 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	834 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	835 break;
adamc@759	836 case ENTRY:
adamc@760	837 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	838 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	839 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	840 break;
adamc@1134	841 default:
adamc@1134	842 break;
adamc@759	843 }
adamc@759	844 }
adamc@759	845
adamc@1113	846 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	847
adamc@759	848 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	849 size_t i;
adamc@759	850 input *r;
adamc@759	851
adamc@759	852 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	853 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	854 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	855
adamc@759	856 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	857
adamc@760	858 if (ctx->subinputs != new_subinputs) {
adamc@760	859 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	860 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	861 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	862 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	863
adamc@760	864 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	865
adamc@760	866 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	867 ctx->subinputs = new_subinputs;
adamc@760	868 }
adamc@759	869 }
adamc@759	870
adamc@759	871 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	872
adamc@759	873 for (i = 0; i < len; ++i)
adam@1474	874 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	875
adamc@759	876 return r;
adamc@759	877 }
adamc@756	878
adamc@801	879 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	880 //printf("Input name %s\n", name);
adamc@1038	881
adamc@756	882 if (!strcasecmp(name, ".b")) {
adamc@1094	883 int n = ctx->app->input_num(value);
adamc@756	884 input *inps;
adamc@756	885
adamc@801	886 if (n < 0) {
adam@1444	887 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	888 return -1;
adamc@801	889 }
adamc@801	890
adamc@1094	891 if (n >= ctx->app->inputs_len) {
adam@1444	892 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	893 return -1;
adamc@801	894 }
adamc@756	895
adamc@1094	896 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	897
adamc@759	898 INP(ctx)[n].kind = SUBFORM;
adamc@759	899 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	900 INP(ctx)[n].data.subform.fields = inps;
adamc@759	901 ctx->cur_container = &INP(ctx)[n];
adamc@756	902 } else if (!strcasecmp(name, ".e")) {
adamc@756	903 input *tmp;
adamc@756	904
adamc@801	905 if (ctx->cur_container == NULL) {
adamc@801	906 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	907 return -1;
adamc@801	908 }
adamc@756	909
adamc@759	910 tmp = ctx->cur_container;
adamc@759	911 switch (tmp->kind) {
adamc@759	912 case SUBFORM:
adamc@759	913 ctx->cur_container = tmp->data.subform.parent;
adamc@759	914 tmp->data.subform.parent = NULL;
adamc@759	915 break;
adamc@759	916 case SUBFORMS:
adamc@759	917 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	918 tmp->data.subforms.parent = NULL;
adamc@759	919 break;
adamc@759	920 case ENTRY:
adamc@759	921 ctx->cur_container = tmp->data.entry.parent;
adamc@759	922 break;
adamc@759	923 default:
adamc@801	924 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	925 return -1;
adamc@759	926 }
adamc@759	927 } else if (!strcasecmp(name, ".s")) {
adamc@1094	928 int n = ctx->app->input_num(value);
adamc@759	929
adamc@801	930 if (n < 0) {
adam@1444	931 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	932 return -1;
adamc@801	933 }
adamc@801	934
adamc@1094	935 if (n >= ctx->app->inputs_len) {
adam@1444	936 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	937 return -1;
adamc@801	938 }
adamc@759	939
adamc@759	940 INP(ctx)[n].kind = SUBFORMS;
adamc@759	941 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	942 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	943 ctx->cur_container = &INP(ctx)[n];
adamc@759	944 } else if (!strcasecmp(name, ".i")) {
adamc@759	945 input *inps;
adamc@759	946
adamc@801	947 if (!ctx->cur_container) {
adamc@801	948 uw_set_error(ctx, "New entry without container");
adamc@801	949 return -1;
adamc@801	950 }
adamc@801	951
adamc@801	952 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	953 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	954 return -1;
adamc@801	955 }
adamc@759	956
adamc@1094	957 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	958
adamc@759	959 inps->kind = ENTRY;
adamc@759	960 inps->data.entry.parent = ctx->cur_container;
adamc@759	961 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	962 ctx->cur_container->data.subforms.entries = inps;
adamc@759	963
adamc@759	964 inps->data.entry.fields = inps+1;
adamc@759	965 ctx->cur_container = inps;
adamc@756	966 } else {
adamc@1094	967 int n = ctx->app->input_num(name);
adamc@756	968
adam@1384	969 if (n < 0)
adam@1384	970 return 0;
adamc@801	971
adamc@1094	972 if (n >= ctx->app->inputs_len) {
adam@1444	973 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	974 return -1;
adamc@801	975 }
adamc@756	976
adamc@756	977 INP(ctx)[n].kind = NORMAL;
adamc@756	978 INP(ctx)[n].data.normal = value;
adamc@756	979 }
adamc@801	980
adamc@801	981 return 0;
adamc@144	982 }
adamc@144	983
adamc@311	984 char *uw_get_input(uw_context ctx, int n) {
adamc@169	985 if (n < 0)
adamc@311	986 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	987 if (n >= ctx->app->inputs_len)
adamc@311	988 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	989
adamc@756	990 switch (INP(ctx)[n].kind) {
adamc@737	991 case UNSET:
adamc@737	992 return NULL;
adamc@739	993 case FIL:
adamc@739	994 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	995 case SUBFORM:
adamc@756	996 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	997 case SUBFORMS:
adamc@759	998 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	999 case ENTRY:
adamc@759	1000 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1001 case NORMAL:
adamc@756	1002 return INP(ctx)[n].data.normal;
adamc@737	1003 default:
adamc@737	1004 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1005 }
adamc@138	1006 }
adamc@138	1007
adamc@311	1008 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	1009 if (n < 0)
adamc@311	1010 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1011 if (n >= ctx->app->inputs_len)
adamc@311	1012 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1013
adamc@756	1014 switch (INP(ctx)[n].kind) {
adamc@737	1015 case UNSET:
adamc@737	1016 return "";
adamc@739	1017 case FIL:
adamc@739	1018 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1019 case SUBFORM:
adamc@756	1020 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1021 case SUBFORMS:
adamc@759	1022 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1023 case ENTRY:
adamc@759	1024 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1025 case NORMAL:
adamc@756	1026 return INP(ctx)[n].data.normal;
adamc@737	1027 default:
adamc@737	1028 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1029 }
adamc@737	1030 }
adamc@737	1031
adamc@801	1032 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1033 int n = ctx->app->input_num(name);
adamc@737	1034
adamc@801	1035 if (n < 0) {
adam@1444	1036 uw_set_error(ctx, "Bad file input name %s", uw_Basis_htmlifyString(ctx, name));
adamc@801	1037 return -1;
adamc@801	1038 }
adamc@801	1039
adamc@1094	1040 if (n >= ctx->app->inputs_len) {
adam@1444	1041 uw_set_error(ctx, "For file input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	1042 return -1;
adamc@801	1043 }
adamc@737	1044
adamc@739	1045 ctx->inputs[n].kind = FIL;
adamc@739	1046 ctx->inputs[n].data.file = f;
adamc@801	1047
adamc@801	1048 return 0;
adamc@737	1049 }
adamc@737	1050
adamc@739	1051 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1052
adamc@739	1053 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1054 if (n < 0)
adamc@737	1055 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1056 if (n >= ctx->app->inputs_len)
adamc@737	1057 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1058
adamc@756	1059 switch (INP(ctx)[n].kind) {
adamc@737	1060 case UNSET:
adamc@737	1061 {
adamc@739	1062 char *data = uw_malloc(ctx, 0);
adamc@740	1063 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1064 return f;
adamc@737	1065 }
adamc@739	1066 case FIL:
adamc@756	1067 return INP(ctx)[n].data.file;
adamc@737	1068 case NORMAL:
adamc@737	1069 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1070 case SUBFORM:
adamc@756	1071 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1072 case SUBFORMS:
adamc@759	1073 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1074 case ENTRY:
adamc@759	1075 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1076 default:
adamc@737	1077 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1078 }
adamc@190	1079 }
adamc@190	1080
adamc@756	1081 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1082 if (n < 0)
adamc@756	1083 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1084 if (n >= ctx->app->inputs_len)
adamc@756	1085 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1086
adamc@756	1087 switch (INP(ctx)[n].kind) {
adamc@756	1088 case UNSET:
adamc@756	1089 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1090 case FIL:
adamc@756	1091 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1092 case NORMAL:
adamc@756	1093 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1094 case SUBFORMS:
adamc@759	1095 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1096 case ENTRY:
adamc@759	1097 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1098 case SUBFORM:
adamc@759	1099 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1100 ctx->cur_container = &INP(ctx)[n];
adamc@756	1101 return;
adamc@756	1102 default:
adamc@756	1103 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1104 }
adamc@756	1105 }
adamc@756	1106
adamc@756	1107 void uw_leave_subform(uw_context ctx) {
adamc@756	1108 input *tmp;
adamc@756	1109
adamc@759	1110 if (ctx->cur_container == NULL)
adamc@756	1111 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1112
adamc@759	1113 tmp = ctx->cur_container;
adamc@759	1114 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1115 tmp->data.subform.parent = NULL;
adamc@759	1116 }
adamc@759	1117
adamc@759	1118 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1119 input *inps;
adamc@759	1120
adamc@759	1121 if (n < 0)
adamc@759	1122 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1123 if (n >= ctx->app->inputs_len)
adamc@759	1124 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1125
adamc@759	1126 switch (INP(ctx)[n].kind) {
adamc@759	1127 case UNSET:
adamc@759	1128 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1129 case FIL:
adamc@759	1130 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1131 case NORMAL:
adamc@759	1132 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1133 case SUBFORM:
adamc@759	1134 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1135 case ENTRY:
adamc@759	1136 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1137 case SUBFORMS:
adamc@759	1138 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1139 if (inps) {
adamc@759	1140 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1141 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1142 return 1;
adamc@759	1143 } else
adamc@759	1144 return 0;
adamc@759	1145 default:
adamc@759	1146 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1147 }
adamc@759	1148 }
adamc@759	1149
adamc@759	1150 int uw_next_entry(uw_context ctx) {
adamc@759	1151 if (ctx->cur_container == NULL)
adamc@759	1152 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1153
adamc@759	1154 switch (ctx->cur_container->kind) {
adamc@759	1155 case UNSET:
adamc@759	1156 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1157 case FIL:
adamc@759	1158 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1159 case NORMAL:
adamc@759	1160 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1161 case SUBFORM:
adamc@759	1162 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1163 case SUBFORMS:
adamc@759	1164 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1165 case ENTRY:
adamc@759	1166 if (ctx->cur_container->data.entry.next) {
adamc@759	1167 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1168 return 1;
adamc@759	1169 } else {
adamc@759	1170 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1171 return 0;
adamc@759	1172 }
adamc@759	1173 default:
adamc@759	1174 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1175 }
adamc@756	1176 }
adamc@756	1177
adamc@643	1178 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1179 ctx->script_header = s;
adamc@643	1180 }
adamc@643	1181
adamc@1094	1182 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1183 return ctx->app->url_prefix;
adamc@667	1184 }
adamc@667	1185
adamc@693	1186 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1187 ctx->needs_push = n;
adamc@693	1188 }
adamc@693	1189
adamc@736	1190 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1191 ctx->needs_sig = n;
adamc@736	1192 }
adamc@736	1193
adamc@667	1194
adam@1369	1195 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1196 if (b->back - b->front < extra) {
adamc@666	1197 size_t desired = b->front - b->start + extra, next;
adamc@136	1198 char *new_heap;
adamc@136	1199
adamc@666	1200 next = b->back - b->start;
adamc@317	1201 if (next == 0)
adamc@317	1202 next = 1;
adamc@317	1203 for (; next < desired; next *= 2);
adamc@136	1204
adamc@1134	1205 if (next > b->max) {
adamc@1113	1206 if (desired <= b->max)
adamc@1113	1207 next = desired;
adamc@1113	1208 else
adamc@1113	1209 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1210 }
adamc@1113	1211
adamc@666	1212 new_heap = realloc(b->start, next);
adamc@666	1213 b->front = new_heap + (b->front - b->start);
adamc@666	1214 b->back = new_heap + next;
adamc@136	1215
adamc@667	1216 if (new_heap != b->start) {
adamc@666	1217 b->start = new_heap;
adam@1389	1218 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1219 }
adamc@136	1220
adamc@666	1221 b->start = new_heap;
adamc@136	1222 }
adamc@136	1223 }
adamc@136	1224
adamc@832	1225 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1226 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1227 }
adamc@666	1228
adamc@832	1229 char *uw_heap_front(uw_context ctx) {
adamc@832	1230 return ctx->heap.front;
adamc@832	1231 }
adamc@832	1232
adamc@832	1233 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1234 ctx->heap.front = fr;
adamc@832	1235 }
adamc@832	1236
adam@1782	1237 void uw_begin_initializing(uw_context ctx) {
adam@1782	1238 ctx->amInitializing = 1;
adam@1782	1239 }
adam@1782	1240
adam@1782	1241 void uw_end_initializing(uw_context ctx) {
adam@1782	1242 ctx->amInitializing = 0;
adam@1782	1243 }
adam@1782	1244
adamc@311	1245 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136	1246 void *result;
adamc@136	1247
adam@1782	1248 if (ctx->amInitializing) {
adam@1782	1249 result = malloc(len);
adam@1782	1250
adam@1782	1251 if (result)
adam@1782	1252 return result;
adam@1782	1253 else
adam@1782	1254 uw_error(ctx, FATAL, "uw_malloc: malloc() returns 0");
adam@1782	1255 } else {
adam@1782	1256 uw_check_heap(ctx, len);
adam@1782	1257
adam@1782	1258 result = ctx->heap.front;
adam@1782	1259 ctx->heap.front += len;
adam@1782	1260 return result;
adam@1782	1261 }
adamc@117	1262 }
adamc@117	1263
adamc@323	1264 void uw_begin_region(uw_context ctx) {
adamc@666	1265 regions r = (regions ) ctx->heap.front;
adamc@323	1266
adamc@323	1267 uw_check_heap(ctx, sizeof(regions));
adamc@323	1268
adamc@666	1269 ctx->heap.front += sizeof(regions);
adamc@323	1270
adamc@323	1271 r->next = ctx->regions;
adamc@323	1272 ctx->regions = r;
adamc@323	1273 }
adamc@323	1274
adamc@323	1275 void uw_end_region(uw_context ctx) {
adamc@323	1276 regions *r = ctx->regions;
adamc@323	1277
adamc@323	1278 if (r == NULL)
adamc@323	1279 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1280
adamc@666	1281 ctx->heap.front = (char *) r;
adamc@323	1282 ctx->regions = r->next;
adamc@323	1283 }
adamc@323	1284
adamc@324	1285 void uw_memstats(uw_context ctx) {
adam@1369	1286 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1287 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1288 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1289 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1290 }
adamc@324	1291
adam@1915	1292 int uw_pagelen(uw_context ctx) {
adam@1915	1293 return ctx->page.front - ctx->page.start;
adam@1915	1294 }
adam@1915	1295
adamc@311	1296 int uw_send(uw_context ctx, int sock) {
adamc@666	1297 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462	1298
adamc@462	1299 if (n < 0)
adamc@462	1300 return n;
adamc@462	1301
adamc@462	1302 n = uw_really_send(sock, "\r\n", 2);
adamc@462	1303
adamc@462	1304 if (n < 0)
adamc@462	1305 return n;
adamc@462	1306
adamc@666	1307 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462	1308 }
adamc@462	1309
adamc@856	1310 int uw_print(uw_context ctx, int fd) {
adamc@856	1311 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1312
adamc@856	1313 if (n < 0)
adamc@856	1314 return n;
adamc@856	1315
adamc@856	1316 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1317
adamc@856	1318 if (n < 0)
adamc@856	1319 return n;
adamc@856	1320
adamc@856	1321 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1322 }
adamc@856	1323
adamc@860	1324 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1325 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1326
adamc@860	1327 if (n < 0)
adamc@860	1328 return n;
adamc@860	1329
adamc@860	1330 n = output(data, "\r\n", 2);
adamc@860	1331
adamc@860	1332 if (n < 0)
adamc@860	1333 return n;
adamc@860	1334
adamc@860	1335 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1336 }
adamc@860	1337
adamc@462	1338 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1339 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1340 }
adamc@462	1341
adamc@462	1342 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1343 int len = strlen(s);
adamc@462	1344
adamc@462	1345 uw_check_headers(ctx, len + 1);
adamc@666	1346 strcpy(ctx->outHeaders.front, s);
adamc@666	1347 ctx->outHeaders.front += len;
adamc@562	1348 }
adamc@562	1349
adamc@1110	1350 void uw_clear_headers(uw_context ctx) {
adam@1369	1351 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1352 }
adamc@1110	1353
adam@1932	1354 void uw_Basis_clear_page(uw_context ctx) {
adam@1932	1355 uw_buffer_reset(&ctx->page);
adam@1932	1356 }
adam@1932	1357
adamc@562	1358 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1359 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1360 }
adamc@562	1361
adamc@562	1362 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1363 int len = strlen(s);
adamc@562	1364
adamc@562	1365 uw_check_script(ctx, len + 1);
adamc@666	1366 strcpy(ctx->script.front, s);
adamc@666	1367 ctx->script.front += len;
adamc@562	1368 }
adamc@562	1369
adam@1446	1370 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1371 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1372 uw_write_script(ctx, "sig=\"");
adam@1671	1373 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1374 uw_write_script(ctx, "\";");
adam@1671	1375 }
adam@1671	1376
adam@1446	1377 return ctx->script.start;
adam@1446	1378 }
adam@1446	1379
adamc@695	1380 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1381 if (s[0] == 0)
adamc@695	1382 return "";
adamc@695	1383 else {
adamc@695	1384 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1385 sprintf(r, " onload='%s'", s);
adamc@695	1386 return r;
adamc@695	1387 }
adamc@695	1388 }
adamc@695	1389
adamc@1042	1390 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1391 if (ctx->script_header[0] == 0)
adamc@1042	1392 return "";
adamc@1042	1393 else {
vshabanoff@1763	1394 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763	1395 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042	1396 return r;
adamc@1042	1397 }
adamc@1042	1398 }
adamc@1042	1399
adamc@694	1400 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1401 if (ctx->client == NULL) {
adamc@736	1402 if (ctx->needs_sig) {
adamc@1094	1403 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1404 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1405 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1406 return r;
adamc@736	1407 }
adamc@736	1408 else
adamc@736	1409 return "";
adamc@736	1410 } else {
adamc@1094	1411 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1412 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1413 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1414 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1415 (ctx->isPost ? "true" : "false"),
adamc@682	1416 ctx->client->id,
adamc@682	1417 ctx->client->pass,
adamc@1094	1418 ctx->app->url_prefix,
adamc@1094	1419 ctx->app->timeout,
adamc@736	1420 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1421 sig,
adamc@736	1422 ctx->needs_sig ? "\";" : "");
adamc@679	1423 return r;
adamc@668	1424 }
adamc@667	1425 }
adamc@667	1426
adamc@574	1427 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1428 char r, s2;
adamc@574	1429
adam@1446	1430 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1431
adamc@666	1432 r = s2 = ctx->heap.front;
adamc@574	1433 *s2++ = '"';
adamc@574	1434
adamc@574	1435 for (; *s; s++) {
adam@1286	1436 unsigned char c = *s;
adamc@574	1437
adamc@574	1438 switch (c) {
adamc@574	1439 case '"':
adamc@574	1440 strcpy(s2, "\\\"");
adamc@574	1441 s2 += 2;
adamc@574	1442 break;
adamc@1027	1443 case '\'':
adamc@1027	1444 strcpy(s2, "\\047");
adamc@1027	1445 s2 += 4;
adamc@1027	1446 break;
adamc@574	1447 case '\\':
adamc@574	1448 strcpy(s2, "\\\\");
adamc@574	1449 s2 += 2;
adamc@574	1450 break;
adam@1457	1451 case '<':
adam@1457	1452 strcpy(s2, "\\074");
adam@1457	1453 s2 += 4;
adam@1457	1454 break;
adamc@574	1455 default:
adam@1286	1456 if (isprint((int)c) \|\| c >= 128)
adamc@574	1457 *s2++ = c;
adamc@574	1458 else {
adam@1429	1459 sprintf(s2, "\\%03o", c);
adamc@574	1460 s2 += 4;
adamc@574	1461 }
adamc@574	1462 }
adamc@574	1463 }
adamc@574	1464
adamc@574	1465 strcpy(s2, "\"");
adamc@910	1466 ctx->heap.front = s2 + 2;
adamc@574	1467 return r;
adamc@574	1468 }
adamc@574	1469
adam@1286	1470 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1471 unsigned char c = c1;
adamc@1025	1472 char r, s2;
adamc@1025	1473
adam@1446	1474 uw_check_heap(ctx, 7);
adamc@1025	1475
adamc@1025	1476 r = s2 = ctx->heap.front;
adamc@1025	1477 *s2++ = '"';
adamc@1025	1478
adamc@1025	1479 switch (c) {
adamc@1025	1480 case '"':
adamc@1025	1481 strcpy(s2, "\\\"");
adamc@1025	1482 s2 += 2;
adamc@1025	1483 break;
adamc@1027	1484 case '\'':
adamc@1027	1485 strcpy(s2, "\\047");
adamc@1027	1486 s2 += 4;
adamc@1027	1487 break;
adamc@1025	1488 case '\\':
adamc@1025	1489 strcpy(s2, "\\\\");
adamc@1025	1490 s2 += 2;
adamc@1025	1491 break;
adam@1457	1492 case '<':
adam@1457	1493 strcpy(s2, "\\074");
adam@1457	1494 s2 += 4;
adam@1457	1495 break;
adamc@1025	1496 default:
adam@1286	1497 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1498 *s2++ = c;
adamc@1025	1499 else {
adam@1429	1500 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1501 s2 += 4;
adamc@1025	1502 }
adamc@1025	1503 }
adamc@1025	1504
adamc@1025	1505 strcpy(s2, "\"");
adamc@1025	1506 ctx->heap.front = s2 + 2;
adamc@1025	1507 return r;
adamc@1025	1508 }
adamc@1025	1509
adamc@574	1510 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1511 char r, s2;
adamc@574	1512
adam@1446	1513 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1514
adamc@666	1515 r = s2 = ctx->script.front;
adamc@574	1516 *s2++ = '"';
adamc@574	1517
adamc@574	1518 for (; *s; s++) {
adam@1286	1519 unsigned char c = *s;
adamc@574	1520
adamc@574	1521 switch (c) {
adamc@577	1522 case '\'':
adamc@1027	1523 strcpy(s2, "\\");
adamc@574	1524 s2 += 2;
adamc@574	1525 break;
adamc@574	1526 case '\\':
adamc@574	1527 strcpy(s2, "\\\\");
adamc@574	1528 s2 += 2;
adamc@574	1529 break;
adam@1457	1530 case '<':
adam@1457	1531 strcpy(s2, "\\074");
adam@1457	1532 s2 += 4;
adam@1457	1533 break;
adamc@574	1534 default:
adam@1286	1535 if (isprint((int)c) \|\| c >= 128)
adamc@574	1536 *s2++ = c;
adamc@574	1537 else {
adam@1429	1538 sprintf(s2, "\\%03o", c);
adamc@574	1539 s2 += 4;
adamc@574	1540 }
adamc@574	1541 }
adamc@574	1542 }
adamc@574	1543
adamc@574	1544 strcpy(s2, "\"");
adamc@666	1545 ctx->script.front = s2 + 1;
adamc@574	1546 return r;
adamc@574	1547 }
adamc@574	1548
adamc@682	1549 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1550 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1551 return "null";
adamc@682	1552 else {
adamc@682	1553 int len;
adamc@682	1554 char *r;
adamc@682	1555
adamc@682	1556 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1557 r = ctx->heap.front;
adamc@682	1558 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1559 ctx->heap.front += len+1;
adamc@682	1560 return r;
adamc@682	1561 }
adamc@682	1562 }
adamc@682	1563
adam@1446	1564 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1565 int len;
adamc@577	1566 size_t s_len = strlen(s);
adamc@562	1567
adam@1446	1568 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1569 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1570 ctx->script.front += len;
adamc@666	1571 strcpy(ctx->script.front, s);
adamc@666	1572 ctx->script.front += s_len;
adamc@970	1573 strcpy(ctx->script.front, "));");
adamc@972	1574 ctx->script.front += 3;
adamc@562	1575
adam@1446	1576 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1577 return r;
adam@1446	1578 }
adam@1446	1579
adam@1446	1580 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1581 int len;
adamc@577	1582 size_t s_len = strlen(s);
adamc@577	1583
adam@1446	1584 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1585 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1586 ctx->script.front += len;
adamc@666	1587 strcpy(ctx->script.front, s);
adamc@666	1588 ctx->script.front += s_len;
adamc@970	1589 strcpy(ctx->script.front, "));");
adamc@972	1590 ctx->script.front += 3;
adamc@577	1591
adamc@577	1592 return uw_unit_v;
adamc@577	1593 }
adamc@577	1594
adamc@311	1595 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1596 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1597 }
adamc@117	1598
adamc@311	1599 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1600 *(ctx->page.front)++ = c;
adam@1413	1601 *ctx->page.front = 0;
adamc@117	1602 }
adamc@117	1603
adamc@311	1604 void uw_writec(uw_context ctx, char c) {
adam@1413	1605 uw_check(ctx, 2);
adamc@311	1606 uw_writec_unsafe(ctx, c);
adamc@117	1607 }
adamc@117	1608
adamc@311	1609 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1610 int len = strlen(s);
adamc@666	1611 memcpy(ctx->page.front, s, len);
adamc@666	1612 ctx->page.front += len;
adamc@117	1613 }
adamc@117	1614
adamc@311	1615 void uw_write(uw_context ctx, const char* s) {
adamc@311	1616 uw_check(ctx, strlen(s) + 1);
adamc@311	1617 uw_write_unsafe(ctx, s);
adamc@666	1618 *ctx->page.front = 0;
adamc@102	1619 }
adamc@106	1620
adamc@311	1621 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1622 char *result;
adamc@136	1623 int len;
adamc@311	1624 uw_check_heap(ctx, INTS_MAX);
adamc@666	1625 result = ctx->heap.front;
adamc@276	1626 sprintf(result, "%lld%n", n, &len);
adamc@666	1627 ctx->heap.front += len+1;
adamc@136	1628 return result;
adamc@106	1629 }
adamc@106	1630
adamc@311	1631 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1632 char *result;
adamc@136	1633 int len;
adamc@311	1634 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1635 result = ctx->heap.front;
adam@1920	1636 sprintf(result, "%.16g%n", n, &len);
adamc@666	1637 ctx->heap.front += len+1;
adamc@136	1638 return result;
adamc@106	1639 }
adamc@106	1640
adamc@311	1641 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1642 int len = strlen(s);
adamc@136	1643 char result, p;
adamc@311	1644 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1645
adamc@666	1646 result = p = ctx->heap.front;
adamc@136	1647
adamc@136	1648 for (; *s; s++) {
adamc@1054	1649 unsigned char c = *s;
adamc@136	1650
adamc@136	1651 if (c == '"') {
adamc@136	1652 strcpy(p, """);
adamc@136	1653 p += 6;
adamc@136	1654 } else if (c == '&') {
adamc@136	1655 strcpy(p, "&");
adamc@136	1656 p += 5;
adamc@136	1657 }
adamc@1059	1658 else
adamc@136	1659 *p++ = c;
adamc@136	1660 }
adamc@136	1661
adamc@137	1662 *p++ = 0;
adamc@666	1663 ctx->heap.front = p;
adamc@136	1664 return result;
adamc@106	1665 }
adamc@106	1666
adamc@1011	1667 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1668 char result, p;
adamc@1011	1669 uw_check_heap(ctx, 7);
adamc@1011	1670
adamc@1011	1671 result = p = ctx->heap.front;
adamc@1011	1672
adamc@1011	1673 if (c == '"') {
adamc@1011	1674 strcpy(p, """);
adamc@1011	1675 p += 6;
adamc@1011	1676 } else if (c == '&') {
adamc@1011	1677 strcpy(p, "&");
adamc@1011	1678 p += 5;
adamc@1011	1679 }
adamc@1059	1680 else
adamc@1011	1681 *p++ = c;
adamc@1011	1682
adamc@1011	1683 *p++ = 0;
adamc@1011	1684 ctx->heap.front = p;
adamc@1011	1685 return result;
adamc@1011	1686 }
adamc@1011	1687
adamc@721	1688 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1689 return s;
adamc@721	1690 }
adamc@721	1691
adamc@311	1692 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1693 int len;
adamc@117	1694
adamc@666	1695 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1696 ctx->page.front += len;
adamc@106	1697 }
adamc@106	1698
adamc@428	1699 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1700 uw_check(ctx, INTS_MAX);
adamc@311	1701 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1702
adamc@428	1703 return uw_unit_v;
adamc@106	1704 }
adamc@106	1705
adamc@428	1706 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1707 int len;
adamc@117	1708
adamc@311	1709 uw_check(ctx, FLOATS_MAX);
adamc@666	1710 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1711 ctx->page.front += len;
adamc@428	1712
adamc@428	1713 return uw_unit_v;
adamc@117	1714 }
adamc@117	1715
adamc@428	1716 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1717 uw_check(ctx, strlen(s) * 6);
adamc@117	1718
adamc@106	1719 for (; *s; s++) {
adamc@1054	1720 unsigned char c = *s;
adamc@106	1721
adamc@106	1722 if (c == '"')
adamc@311	1723 uw_write_unsafe(ctx, """);
adamc@136	1724 else if (c == '&')
adamc@311	1725 uw_write_unsafe(ctx, "&");
adamc@1059	1726 else
adamc@311	1727 uw_writec_unsafe(ctx, c);
adamc@106	1728 }
adamc@428	1729
adamc@428	1730 return uw_unit_v;
adamc@106	1731 }
adamc@120	1732
adamc@1011	1733 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1734 uw_check(ctx, 6);
adamc@1011	1735
adamc@1011	1736 if (c == '"')
adamc@1011	1737 uw_write_unsafe(ctx, """);
adamc@1011	1738 else if (c == '&')
adamc@1011	1739 uw_write_unsafe(ctx, "&");
adamc@1059	1740 else
adamc@1011	1741 uw_writec_unsafe(ctx, c);
adamc@1011	1742
adamc@1011	1743 return uw_unit_v;
adamc@1011	1744 }
adamc@1011	1745
adamc@120	1746
adamc@311	1747 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1748 int len;
adamc@137	1749 char *r;
adamc@137	1750
adamc@311	1751 uw_check_heap(ctx, INTS_MAX);
adamc@666	1752 r = ctx->heap.front;
adamc@276	1753 sprintf(r, "%lld%n", n, &len);
adamc@666	1754 ctx->heap.front += len+1;
adamc@137	1755 return r;
adamc@120	1756 }
adamc@120	1757
adamc@682	1758 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1759 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1760 return "";
adamc@682	1761 else {
adamc@682	1762 int len;
adamc@682	1763 char *r;
adamc@679	1764
adamc@682	1765 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1766 r = ctx->heap.front;
adamc@682	1767 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1768 ctx->heap.front += len+1;
adamc@682	1769 return r;
adamc@682	1770 }
adamc@679	1771 }
adamc@679	1772
adamc@311	1773 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1774 int len;
adamc@137	1775 char *r;
adamc@137	1776
adamc@311	1777 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1778 r = ctx->heap.front;
adamc@137	1779 sprintf(r, "%g%n", n, &len);
adamc@666	1780 ctx->heap.front += len+1;
adamc@137	1781 return r;
adamc@120	1782 }
adamc@120	1783
adamc@311	1784 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1785 char r, p;
adamc@137	1786
adamc@925	1787 if (s[0] == '\0')
adamc@925	1788 return "_";
adamc@925	1789
adamc@925	1790 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1791
adamc@925	1792 r = p = ctx->heap.front;
adamc@925	1793 if (s[0] == '_')
adamc@925	1794 *p++ = '_';
adamc@925	1795
adamc@925	1796 for (; *s; s++) {
adamc@1087	1797 unsigned char c = *s;
adamc@137	1798
adamc@137	1799 if (c == ' ')
adamc@137	1800 *p++ = '+';
adamc@137	1801 else if (isalnum(c))
adamc@137	1802 *p++ = c;
adamc@137	1803 else {
adamc@1259	1804 sprintf(p, ".%02X", c);
adamc@137	1805 p += 3;
adamc@137	1806 }
adamc@137	1807 }
adamc@137	1808
adamc@137	1809 *p++ = 0;
adamc@666	1810 ctx->heap.front = p;
adamc@137	1811 return r;
adamc@120	1812 }
adamc@120	1813
adamc@311	1814 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1815 if (b == uw_Basis_False)
adamc@186	1816 return "0";
adamc@186	1817 else
adamc@186	1818 return "1";
adamc@186	1819 }
adamc@186	1820
adam@1620	1821 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1822 char *r;
adam@1620	1823 int len;
adam@1620	1824 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1825 r = ctx->heap.front;
adam@1620	1826 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1827 ctx->heap.front += len+1;
adam@1620	1828 return r;
adam@1620	1829 }
adam@1620	1830
adamc@311	1831 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1832 int len;
adamc@120	1833
adamc@666	1834 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1835 ctx->page.front += len;
adamc@120	1836 }
adamc@120	1837
adamc@428	1838 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1839 uw_check(ctx, INTS_MAX);
adamc@311	1840 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1841
adamc@428	1842 return uw_unit_v;
adamc@120	1843 }
adamc@120	1844
adamc@682	1845 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1846 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1847 int len;
adamc@682	1848
adamc@682	1849 uw_check(ctx, INTS_MAX + 1);
adamc@682	1850 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1851 ctx->page.front += len;
adamc@682	1852 }
adamc@682	1853
adamc@679	1854 return uw_unit_v;
adamc@679	1855 }
adamc@679	1856
adamc@428	1857 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1858 int len;
adamc@120	1859
adamc@311	1860 uw_check(ctx, FLOATS_MAX);
adamc@666	1861 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1862 ctx->page.front += len;
adamc@428	1863
adamc@428	1864 return uw_unit_v;
adamc@120	1865 }
adamc@120	1866
adamc@488	1867 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1868 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1869 }
adamc@488	1870
adam@1404	1871 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1872 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1873 }
adam@1404	1874
adamc@428	1875 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1876 if (s[0] == '\0') {
adamc@925	1877 uw_check(ctx, 1);
adamc@925	1878 uw_writec_unsafe(ctx, '_');
adamc@925	1879 return uw_unit_v;
adamc@925	1880 }
adamc@925	1881
adamc@925	1882 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1883
adamc@925	1884 if (s[0] == '_')
adamc@925	1885 uw_writec_unsafe(ctx, '_');
adamc@120	1886
adamc@120	1887 for (; *s; s++) {
adamc@1087	1888 unsigned char c = *s;
adamc@120	1889
adamc@120	1890 if (c == ' ')
adamc@311	1891 uw_writec_unsafe(ctx, '+');
adamc@120	1892 else if (isalnum(c))
adamc@311	1893 uw_writec_unsafe(ctx, c);
adamc@120	1894 else {
adamc@1259	1895 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1896 ctx->page.front += 3;
adamc@120	1897 }
adamc@120	1898 }
adamc@428	1899
adamc@428	1900 return uw_unit_v;
adamc@120	1901 }
adamc@120	1902
adamc@428	1903 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1904 if (b == uw_Basis_False)
adamc@311	1905 uw_writec(ctx, '0');
adamc@186	1906 else
adamc@311	1907 uw_writec(ctx, '1');
adamc@428	1908
adamc@428	1909 return uw_unit_v;
adamc@186	1910 }
adamc@186	1911
adam@1620	1912 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	1913 int len;
adam@1620	1914
adam@1620	1915 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	1916 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1917 ctx->page.front += len;
adam@1620	1918
adam@1620	1919 return uw_unit_v;
adam@1620	1920 }
adam@1620	1921
adamc@120	1922
adamc@311	1923 static char uw_unurlify_advance(char s) {
adamc@144	1924 char *new_s = strchr(s, '/');
adamc@120	1925
adamc@120	1926 if (new_s)
adamc@120	1927 *new_s++ = 0;
adamc@120	1928 else
adamc@144	1929 new_s = strchr(s, 0);
adamc@144	1930
adamc@144	1931 return new_s;
adamc@144	1932 }
adamc@144	1933
adamc@311	1934 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1935 char new_s = uw_unurlify_advance(s);
adamc@311	1936 uw_Basis_int r;
adamc@120	1937
adamc@276	1938 r = atoll(*s);
adamc@120	1939 *s = new_s;
adamc@120	1940 return r;
adamc@120	1941 }
adamc@120	1942
adamc@311	1943 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1944 char new_s = uw_unurlify_advance(s);
adamc@311	1945 uw_Basis_float r;
adamc@120	1946
adamc@120	1947 r = atof(*s);
adamc@120	1948 *s = new_s;
adamc@120	1949 return r;
adamc@120	1950 }
adamc@120	1951
adamc@488	1952 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	1953 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	1954 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	1955 return r;
adamc@488	1956 }
adamc@488	1957
adamc@1023	1958 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1959 char s1, s2 = s;
adamc@144	1960 int n;
adamc@136	1961
adamc@1023	1962 if (!fromClient) {
adamc@1023	1963 if (*s2 == '_')
adamc@1023	1964 ++s2;
adamc@1259	1965 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1966 s2 += 3;
adamc@1023	1967 }
adamc@925	1968
adamc@927	1969 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	1970 unsigned char c = *s2;
adamc@136	1971
adamc@136	1972 switch (c) {
adamc@136	1973 case '+':
adamc@136	1974 *s1 = ' ';
adamc@136	1975 break;
adamc@136	1976 case '%':
adamc@169	1977 if (s2[1] == 0)
adamc@311	1978 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1979 if (s2[2] == 0)
adamc@311	1980 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1981 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	1982 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	1983 *s1 = n;
adamc@136	1984 s2 += 2;
adamc@136	1985 break;
adamc@1259	1986 case '.':
adamc@1259	1987 if (!fromClient) {
adamc@1259	1988 if (s2[1] == 0)
adamc@1259	1989 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	1990 if (s2[2] == 0)
adamc@1259	1991 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	1992 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	1993 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	1994 *s1 = n;
adamc@1259	1995 s2 += 2;
adamc@1259	1996 break;
adamc@1259	1997 }
adamc@136	1998 default:
adamc@136	1999 *s1 = c;
adamc@136	2000 }
adamc@136	2001 }
adamc@136	2002 *s1++ = 0;
adamc@144	2003 return s1;
adamc@144	2004 }
adamc@144	2005
adamc@311	2006 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	2007 char new_s = uw_unurlify_advance(s);
adamc@311	2008 uw_Basis_bool r;
adamc@186	2009
adamc@186	2010 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2011 r = uw_Basis_False;
adamc@186	2012 else
adamc@311	2013 r = uw_Basis_True;
adamc@186	2014
adamc@186	2015 *s = new_s;
adamc@186	2016 return r;
adamc@186	2017 }
adamc@186	2018
adamc@311	2019 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2020 char new_s = uw_unurlify_advance(s);
adamc@1134	2021 char *r;
adamc@1134	2022 int len;
adamc@144	2023
adamc@200	2024 len = strlen(*s);
adamc@311	2025 uw_check_heap(ctx, len + 1);
adamc@144	2026
adamc@666	2027 r = ctx->heap.front;
adamc@1023	2028 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2029 *s = new_s;
adamc@1023	2030 return r;
adamc@1023	2031 }
adamc@1023	2032
adamc@1109	2033 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2034 s = uw_unurlify_advance(s);
adamc@1109	2035 return uw_unit_v;
adamc@1109	2036 }
adamc@1109	2037
adamc@1023	2038 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2039 char new_s = uw_unurlify_advance(s);
adamc@1134	2040 char *r;
adamc@1134	2041 int len;
adamc@1023	2042
adamc@1023	2043 len = strlen(*s);
adamc@1023	2044 uw_check_heap(ctx, len + 1);
adamc@1023	2045
adamc@1023	2046 r = ctx->heap.front;
adamc@1023	2047 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2048 *s = new_s;
adamc@136	2049 return r;
adamc@120	2050 }
adamc@135	2051
adamc@135	2052
adamc@311	2053 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2054 int len;
adamc@286	2055 char *r;
adamc@286	2056
adamc@311	2057 uw_check_heap(ctx, INTS_MAX);
adamc@666	2058 r = ctx->heap.front;
adamc@286	2059 sprintf(r, "%lld%n", n, &len);
adamc@666	2060 ctx->heap.front += len+1;
adamc@286	2061 return r;
adamc@286	2062 }
adamc@286	2063
adamc@428	2064 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2065 int len;
adamc@286	2066
adamc@311	2067 uw_check(ctx, INTS_MAX);
adamc@666	2068 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2069 ctx->page.front += len;
adamc@428	2070
adamc@428	2071 return uw_unit_v;
adamc@286	2072 }
adamc@286	2073
adam@1358	2074 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2075 unsigned int n = ch;
adam@1358	2076 int len;
adam@1358	2077 char *r;
adam@1358	2078
adam@1358	2079 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2080 r = ctx->heap.front;
adam@1358	2081 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2082 ctx->heap.front += len+1;
adam@1358	2083 return r;
adam@1358	2084 }
adam@1358	2085
adam@1358	2086 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2087 unsigned int n = ch;
adam@1358	2088 int len;
adam@1358	2089
adam@1358	2090 uw_check(ctx, INTS_MAX+3);
adam@1358	2091 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2092 ctx->page.front += len;
adam@1358	2093 return uw_unit_v;
adam@1358	2094 }
adam@1358	2095
adamc@311	2096 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2097 int len;
adamc@286	2098 char *r;
adamc@286	2099
adamc@311	2100 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2101 r = ctx->heap.front;
adamc@286	2102 sprintf(r, "%g%n", n, &len);
adamc@666	2103 ctx->heap.front += len+1;
adamc@286	2104 return r;
adamc@286	2105 }
adamc@286	2106
adamc@428	2107 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2108 int len;
adamc@286	2109
adamc@311	2110 uw_check(ctx, FLOATS_MAX);
adamc@666	2111 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2112 ctx->page.front += len;
adamc@428	2113
adamc@428	2114 return uw_unit_v;
adamc@286	2115 }
adamc@286	2116
adam@1365	2117 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2118 int len;
adam@1360	2119 char *r;
adam@1360	2120
adam@1360	2121 uw_check_heap(ctx, INTS_MAX);
adam@1360	2122 r = ctx->heap.front;
adamc@1377	2123 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2124 ctx->heap.front += len+1;
adam@1360	2125 return r;
adam@1360	2126 }
adam@1360	2127
adam@1365	2128 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2129 int len;
adam@1360	2130
adam@1360	2131 uw_check(ctx, INTS_MAX);
adam@1360	2132 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2133 ctx->page.front += len;
adam@1360	2134
adam@1360	2135 return uw_unit_v;
adam@1360	2136 }
adam@1360	2137
adam@1444	2138 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2139 char r, s2;
adamc@137	2140
adamc@311	2141 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2142
adamc@666	2143 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2144 unsigned char c = *s;
adamc@137	2145
adamc@137	2146 switch (c) {
adamc@137	2147 case '<':
adamc@137	2148 strcpy(s2, "<");
adamc@137	2149 s2 += 4;
adamc@137	2150 break;
adamc@137	2151 case '&':
adamc@137	2152 strcpy(s2, "&");
adamc@137	2153 s2 += 5;
adamc@137	2154 break;
adamc@137	2155 default:
adamc@1059	2156 *s2++ = c;
adamc@137	2157 }
adamc@137	2158 }
adamc@137	2159
adamc@137	2160 *s2++ = 0;
adamc@666	2161 ctx->heap.front = s2;
adamc@137	2162 return r;
adamc@135	2163 }
adamc@135	2164
adamc@428	2165 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2166 uw_check(ctx, strlen(s) * 6);
adamc@135	2167
adamc@135	2168 for (; *s; s++) {
adamc@1054	2169 unsigned char c = *s;
adamc@135	2170
adamc@135	2171 switch (c) {
adamc@135	2172 case '<':
adamc@311	2173 uw_write_unsafe(ctx, "<");
adamc@135	2174 break;
adamc@135	2175 case '&':
adamc@311	2176 uw_write_unsafe(ctx, "&");
adamc@135	2177 break;
adamc@135	2178 default:
adamc@1059	2179 uw_writec_unsafe(ctx, c);
adamc@135	2180 }
adamc@135	2181 }
adamc@428	2182
adamc@428	2183 return uw_unit_v;
adamc@135	2184 }
adamc@180	2185
adamc@311	2186 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2187 if (b == uw_Basis_False)
adamc@286	2188 return "False";
adamc@286	2189 else
adamc@286	2190 return "True";
adamc@286	2191 }
adamc@286	2192
adamc@428	2193 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2194 if (b == uw_Basis_False) {
adamc@311	2195 uw_check(ctx, 6);
adamc@666	2196 strcpy(ctx->page.front, "False");
adamc@666	2197 ctx->page.front += 5;
adamc@286	2198 } else {
adamc@311	2199 uw_check(ctx, 5);
adamc@666	2200 strcpy(ctx->page.front, "True");
adamc@666	2201 ctx->page.front += 4;
adamc@286	2202 }
adamc@428	2203
adamc@428	2204 return uw_unit_v;
adamc@286	2205 }
adamc@286	2206
adamc@436	2207 #define TIME_FMT "%x %X"
adamc@438	2208 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2209 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2210
adam@1629	2211 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2212
adamc@436	2213 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2214 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2215 }
adamc@436	2216
adamc@436	2217 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2218 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2219 }
adamc@436	2220
adam@1446	2221 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2222 int len;
adam@1446	2223 char *r;
adam@1446	2224
adam@1446	2225 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2226 r = ctx->heap.front;
adam@1446	2227 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2228 ctx->heap.front += len+1;
adam@1446	2229 return r;
adam@1446	2230 }
adam@1446	2231
adam@1446	2232 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2233 int len;
adam@1446	2234
adam@1446	2235 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2236 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2237 ctx->page.front += len;
adam@1446	2238
adam@1446	2239 return uw_unit_v;
adam@1446	2240 }
adam@1446	2241
adamc@821	2242 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2243 while (n >= 0) {
adam@1388	2244 if (*s == 0)
adam@1388	2245 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2246
adam@1388	2247 if (n == 0)
adam@1388	2248 return *s;
adam@1388	2249
adam@1388	2250 --n;
adam@1388	2251 ++s;
adam@1388	2252 }
adam@1388	2253
adam@1388	2254 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2255 }
adamc@821	2256
adamc@821	2257 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2258 while (n >= 0) {
adam@1388	2259 if (*s == 0 \|\| n == 0)
adam@1388	2260 return s;
adam@1388	2261
adam@1388	2262 --n;
adam@1388	2263 ++s;
adam@1388	2264 }
adam@1388	2265
adam@1388	2266 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2267 }
adamc@821	2268
adamc@828	2269 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2270 return strlen(s);
adamc@828	2271 }
adamc@828	2272
adam@1388	2273 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2274 while (n > 0) {
adam@1388	2275 if (*s == 0)
adam@1388	2276 return uw_Basis_False;
adam@1388	2277
adam@1388	2278 --n;
adam@1388	2279 ++s;
adam@1388	2280 }
adam@1388	2281
adam@1388	2282 return uw_Basis_True;
adam@1388	2283 }
adam@1388	2284
adamc@829	2285 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2286 return strchr(s, ch);
adamc@829	2287 }
adamc@829	2288
adamc@831	2289 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2290 return strcspn(s, chs);
adamc@831	2291 }
adamc@831	2292
adamc@829	2293 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2294 uw_Basis_string r = strchr(s, ch);
adamc@829	2295 if (r == NULL)
adamc@829	2296 return NULL;
adamc@829	2297 else {
adamc@829	2298 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2299 *nr = r - s;
adamc@829	2300 return nr;
adamc@829	2301 }
adamc@829	2302 }
adamc@829	2303
adam@1390	2304 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2305 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2306 if (r == NULL)
adam@1390	2307 return NULL;
adam@1390	2308 else {
adam@1390	2309 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2310 *nr = r - haystack;
adam@1390	2311 return nr;
adam@1390	2312 }
adam@1390	2313 }
adam@1390	2314
adamc@311	2315 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2316 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2317 char *s;
adamc@180	2318
adamc@311	2319 uw_check_heap(ctx, len);
adamc@180	2320
adamc@666	2321 s = ctx->heap.front;
adamc@180	2322
adamc@180	2323 strcpy(s, s1);
adamc@180	2324 strcat(s, s2);
adamc@666	2325 ctx->heap.front += len;
adamc@180	2326
adamc@180	2327 return s;
adamc@180	2328 }
adamc@278	2329
adamc@829	2330 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2331 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2332
adamc@829	2333 if (start < 0)
adamc@829	2334 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2335 if (len < 0)
adamc@829	2336 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2337 if (start + len > full_len)
adamc@829	2338 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2339
adamc@829	2340 if (start + len == full_len)
adamc@829	2341 return &s[start];
adamc@829	2342 else {
adamc@829	2343 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2344 memcpy(r, s+start, len);
adamc@829	2345 r[len] = 0;
adamc@829	2346 return r;
adamc@829	2347 }
adamc@829	2348
adamc@829	2349 }
adamc@829	2350
adamc@1023	2351 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2352 char *r;
adamc@1023	2353
adamc@1023	2354 uw_check_heap(ctx, 2);
adamc@1023	2355 r = ctx->heap.front;
adamc@1023	2356 r[0] = ch;
adamc@1023	2357 r[1] = 0;
adamc@1023	2358
adamc@1023	2359 ctx->heap.front += 2;
adamc@1023	2360
adamc@1023	2361 return r;
adamc@1023	2362 }
adamc@1023	2363
adamc@737	2364 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2365 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2366 char *s;
adamc@278	2367
adamc@311	2368 uw_check_heap(ctx, len);
adamc@278	2369
adamc@666	2370 s = ctx->heap.front;
adamc@278	2371
adamc@278	2372 strcpy(s, s1);
adamc@666	2373 ctx->heap.front += len;
adamc@278	2374
adamc@278	2375 return s;
adamc@278	2376 }
adamc@280	2377
adam@1295	2378 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2379 if (ctx->error_message[0]) {
adam@1295	2380 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2381 ctx->error_message[0] = 0;
adam@1295	2382 return s;
adam@1295	2383 } else
adam@1295	2384 return NULL;
adam@1295	2385 }
adam@1295	2386
adamc@737	2387 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2388 if (s1)
adamc@737	2389 return uw_strdup(ctx, s1);
adamc@493	2390 else
adamc@493	2391 return NULL;
adamc@493	2392 }
adamc@493	2393
adamc@742	2394 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2395 char *r = uw_malloc(ctx, len);
adamc@742	2396 memcpy(r, p, len);
adamc@742	2397 return r;
adamc@742	2398 }
adamc@280	2399
adamc@879	2400 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2401
adamc@311	2402 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2403 int len;
adamc@281	2404 char *r;
adamc@281	2405
adamc@311	2406 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2407 r = ctx->heap.front;
adamc@879	2408 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2409 ctx->heap.front += len+1;
adamc@281	2410 return r;
adamc@281	2411 }
adamc@281	2412
adamc@467	2413 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2414 if (n == NULL)
adamc@467	2415 return "NULL";
adamc@467	2416 else
adamc@467	2417 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2418 }
adamc@467	2419
adam@1920	2420 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879	2421
adamc@311	2422 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2423 int len;
adamc@281	2424 char *r;
adamc@281	2425
adamc@311	2426 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2427 r = ctx->heap.front;
adamc@879	2428 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2429 ctx->heap.front += len+1;
adamc@281	2430 return r;
adamc@281	2431 }
adamc@281	2432
adamc@467	2433 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2434 if (n == NULL)
adamc@467	2435 return "NULL";
adamc@467	2436 else
adamc@467	2437 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2438 }
adamc@467	2439
adam@1834	2440 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2441 char *uw_sqlsuffixString = "::text";
adamc@1011	2442 char *uw_sqlsuffixChar = "::char";
adamc@281	2443
adamc@311	2444 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2445 char r, s2;
adamc@280	2446
adamc@879	2447 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2448
adamc@666	2449 r = s2 = ctx->heap.front;
adamc@879	2450 if (uw_Estrings)
adamc@879	2451 *s2++ = 'E';
adamc@280	2452 *s2++ = '\'';
adamc@280	2453
adamc@280	2454 for (; *s; s++) {
adamc@280	2455 char c = *s;
adamc@280	2456
adamc@280	2457 switch (c) {
adamc@280	2458 case '\'':
adamc@885	2459 if (uw_Estrings)
adamc@885	2460 strcpy(s2, "\\'");
adamc@885	2461 else
adamc@885	2462 strcpy(s2, "''");
adamc@280	2463 s2 += 2;
adamc@280	2464 break;
adamc@280	2465 case '\\':
adamc@885	2466 if (uw_Estrings) {
adamc@885	2467 strcpy(s2, "\\\\");
adamc@885	2468 s2 += 2;
adamc@885	2469 } else
adamc@885	2470 *s2++ = '\\';
adamc@280	2471 break;
adamc@280	2472 default:
adamc@1150	2473 if (isprint((int)c))
adamc@280	2474 *s2++ = c;
adamc@879	2475 else if (uw_Estrings) {
adam@1857	2476 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2477 s2 += 4;
adamc@280	2478 }
adamc@879	2479 else
adam@1689	2480 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2481 }
adamc@280	2482 }
adamc@280	2483
adamc@879	2484 *s2++ = '\'';
adamc@879	2485 strcpy(s2, uw_sqlsuffixString);
adamc@879	2486 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2487 return r;
adamc@280	2488 }
adamc@281	2489
adamc@1011	2490 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2491 char r, s2;
adamc@1011	2492
adamc@1011	2493 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2494
adamc@1011	2495 r = s2 = ctx->heap.front;
adamc@1011	2496 if (uw_Estrings)
adamc@1011	2497 *s2++ = 'E';
adamc@1011	2498 *s2++ = '\'';
adamc@1011	2499
adamc@1011	2500 switch (c) {
adamc@1011	2501 case '\'':
adamc@1011	2502 if (uw_Estrings)
adamc@1011	2503 strcpy(s2, "\\'");
adamc@1011	2504 else
adamc@1011	2505 strcpy(s2, "''");
adamc@1011	2506 s2 += 2;
adamc@1011	2507 break;
adamc@1011	2508 case '\\':
adamc@1011	2509 if (uw_Estrings) {
adamc@1011	2510 strcpy(s2, "\\\\");
adamc@1011	2511 s2 += 2;
adamc@1011	2512 } else
adamc@1011	2513 *s2++ = '\\';
adamc@1011	2514 break;
adamc@1011	2515 default:
adamc@1150	2516 if (isprint((int)c))
adamc@1011	2517 *s2++ = c;
adamc@1011	2518 else if (uw_Estrings) {
adam@1857	2519 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2520 s2 += 4;
adamc@1011	2521 }
adamc@1011	2522 else
adamc@1011	2523 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2524 }
adamc@1011	2525
adamc@1011	2526 *s2++ = '\'';
adamc@1011	2527 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2528 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2529 return r;
adamc@1011	2530 }
adamc@1011	2531
adamc@879	2532 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2533
adam@1867	2534 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2535 char r, s2;
adamc@737	2536 size_t i;
adamc@737	2537
adam@1867	2538 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2539
adamc@737	2540 r = s2 = ctx->heap.front;
adamc@879	2541 if (uw_Estrings)
adamc@879	2542 *s2++ = 'E';
adam@1867	2543 else
adam@1867	2544 *s2++ = 'X';
adamc@737	2545 *s2++ = '\'';
adamc@737	2546
adamc@737	2547 for (i = 0; i < b.size; ++i) {
adam@1867	2548 unsigned char c = b.data[i];
adam@1867	2549
adam@1867	2550 if (uw_Estrings) {
adam@1867	2551 switch (c) {
adam@1867	2552 case '\'':
adamc@885	2553 strcpy(s2, "\\'");
adam@1867	2554 s2 += 2;
adam@1867	2555 break;
adam@1867	2556 case '\\':
adamc@885	2557 strcpy(s2, "\\\\\\\\");
adamc@885	2558 s2 += 4;
adam@1867	2559 break;
adam@1867	2560 default:
adam@1867	2561 if (isprint((int)c))
adam@1867	2562 *s2++ = c;
adam@1867	2563 else {
adam@1867	2564 sprintf(s2, "\\\\%03o", c);
adam@1867	2565 s2 += 5;
adam@1867	2566 }
adamc@737	2567 }
adam@1867	2568 } else {
adam@1867	2569 sprintf(s2, "%02X", c);
adam@1867	2570 s2 += 2;
adamc@737	2571 }
adam@1867	2572 }
adamc@737	2573
adamc@879	2574 *s2++ = '\'';
adamc@879	2575 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2576 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2577 return r;
adamc@737	2578 }
adamc@737	2579
adamc@682	2580 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2581 int len;
adamc@682	2582 char *r;
adamc@682	2583 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2584
adamc@682	2585 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2586 r = ctx->heap.front;
adamc@879	2587 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2588 ctx->heap.front += len+1;
adamc@682	2589 return r;
adamc@682	2590 }
adamc@682	2591
adamc@682	2592 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2593 int len;
adamc@682	2594 char *r;
adamc@682	2595 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2596
adamc@682	2597 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2598 r = ctx->heap.front;
adamc@682	2599 sprintf(r, "%lld%n", combo, &len);
adamc@682	2600 ctx->heap.front += len+1;
adamc@682	2601 return r;
adamc@682	2602 }
adamc@682	2603
adamc@879	2604 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2605
adamc@682	2606 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2607 int len;
adamc@682	2608 char *r;
adamc@682	2609
adamc@682	2610 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2611 r = ctx->heap.front;
adamc@879	2612 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2613 ctx->heap.front += len+1;
adamc@682	2614 return r;
adamc@682	2615 }
adamc@682	2616
adamc@682	2617 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2618 int len;
adamc@682	2619 char *r;
adamc@682	2620
adamc@682	2621 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2622 r = ctx->heap.front;
adamc@682	2623 sprintf(r, "%u%n", cli, &len);
adamc@682	2624 ctx->heap.front += len+1;
adamc@682	2625 return r;
adamc@682	2626 }
adamc@682	2627
adamc@467	2628 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2629 if (s == NULL)
adamc@467	2630 return "NULL";
adamc@467	2631 else
adamc@467	2632 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2633 }
adamc@467	2634
adamc@311	2635 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2636 if (b == uw_Basis_False)
adamc@281	2637 return "FALSE";
adamc@281	2638 else
adamc@281	2639 return "TRUE";
adamc@281	2640 }
adamc@282	2641
adamc@467	2642 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2643 if (b == NULL)
adamc@467	2644 return "NULL";
adamc@467	2645 else
adamc@467	2646 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2647 }
adamc@467	2648
adamc@439	2649 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2650 size_t len;
adamc@682	2651 char r, s;
adam@1392	2652 struct tm stm = {};
adam@1392	2653 stm.tm_isdst = -1;
adamc@682	2654
adam@1365	2655 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2656 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2657 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2658 if (uw_sql_type_annotations) {
adam@1834	2659 if (t.microseconds) {
adam@1834	2660 r = uw_malloc(ctx, len + 21);
adam@1834	2661 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2662 } else {
adam@1834	2663 r = uw_malloc(ctx, len + 14);
adam@1834	2664 sprintf(r, "'%s'::timestamp", s);
adam@1834	2665 }
adam@1367	2666 } else {
adam@1834	2667 r = uw_malloc(ctx, len + 3);
adam@1834	2668 sprintf(r, "'%s'", s);
adam@1367	2669 }
adamc@682	2670 return r;
adamc@682	2671 } else
adamc@682	2672 return "<Invalid time>";
adamc@682	2673 }
adamc@682	2674
adamc@682	2675 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2676 size_t len;
adamc@439	2677 char *r;
adam@1392	2678 struct tm stm = {};
adam@1392	2679 stm.tm_isdst = -1;
adamc@439	2680
adam@1365	2681 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2682 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2683 r = ctx->heap.front;
adamc@439	2684 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2685 ctx->heap.front += len+1;
adamc@439	2686 return r;
adamc@439	2687 } else
adamc@439	2688 return "<Invalid time>";
adamc@439	2689 }
adamc@439	2690
adam@1364	2691 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2692 size_t len;
adam@1364	2693 char *r;
adam@1392	2694 struct tm stm = {};
adam@1392	2695 stm.tm_isdst = -1;
adam@1364	2696
adam@1365	2697 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2698 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2699 r = ctx->heap.front;
adam@1365	2700 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2701 ctx->heap.front += len;
adam@1365	2702 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2703 ctx->heap.front += 8;
adam@1364	2704 return r;
adam@1364	2705 } else
adam@1364	2706 return "<Invalid time>";
adam@1364	2707 }
adam@1364	2708
adamc@467	2709 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2710 if (t == NULL)
adamc@467	2711 return "NULL";
adamc@467	2712 else
adamc@467	2713 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2714 }
adamc@467	2715
adamc@311	2716 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2717 static uw_Basis_int true = 1;
adamc@311	2718 static uw_Basis_int false = 0;
adamc@282	2719
adamc@311	2720 if (b == uw_Basis_False)
adamc@282	2721 return (char *)&false;
adamc@282	2722 else
adamc@282	2723 return (char *)&true;
adamc@282	2724 }
adamc@284	2725
adamc@311	2726 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2727 int len;
adamc@284	2728 char *r;
adamc@284	2729
adamc@311	2730 uw_check_heap(ctx, INTS_MAX);
adamc@666	2731 r = ctx->heap.front;
adamc@284	2732 sprintf(r, "%lld%n", n, &len);
adamc@666	2733 ctx->heap.front += len+1;
adamc@284	2734 return r;
adamc@284	2735 }
adamc@285	2736
adamc@311	2737 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2738 int len;
adamc@285	2739 char *r;
adamc@285	2740
adamc@311	2741 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2742 r = ctx->heap.front;
adamc@285	2743 sprintf(r, "%g%n", n, &len);
adamc@666	2744 ctx->heap.front += len+1;
adamc@285	2745 return r;
adamc@285	2746 }
adamc@285	2747
adamc@821	2748 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2749 char *r = uw_malloc(ctx, 2);
adamc@821	2750 r[0] = ch;
adamc@821	2751 r[1] = 0;
adamc@821	2752 return r;
adamc@821	2753 }
adamc@821	2754
adamc@311	2755 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2756 if (b == uw_Basis_False)
adamc@285	2757 return "False";
adamc@285	2758 else
adamc@285	2759 return "True";
adamc@285	2760 }
adamc@288	2761
adam@1359	2762 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2763 size_t len;
adam@1352	2764 char *r;
adam@1392	2765 struct tm stm = {};
adam@1392	2766 stm.tm_isdst = -1;
adam@1352	2767
adam@1365	2768 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2769 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2770 r = ctx->heap.front;
adam@1352	2771 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2772 ctx->heap.front += len+1;
adam@1352	2773 return r;
adam@1352	2774 } else
adam@1352	2775 return "<Invalid time>";
adam@1352	2776 }
adam@1352	2777
adam@1629	2778 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2779 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2780 }
adam@1629	2781
adamc@311	2782 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2783 char *endptr;
adamc@311	2784 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2785
adamc@288	2786 if (s != '\0' && endptr == '\0') {
adamc@311	2787 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2788 *r = n;
adamc@288	2789 return r;
adamc@288	2790 } else
adamc@288	2791 return NULL;
adamc@288	2792 }
adamc@289	2793
adamc@311	2794 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2795 char *endptr;
adamc@311	2796 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2797
adamc@289	2798 if (s != '\0' && endptr == '\0') {
adamc@311	2799 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2800 *r = n;
adamc@289	2801 return r;
adamc@289	2802 } else
adamc@289	2803 return NULL;
adamc@289	2804 }
adamc@289	2805
adamc@821	2806 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2807 if (s[0] == 0) {
adamc@821	2808 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2809 r[0] = 0;
adamc@821	2810 return r;
adamc@821	2811 } else if (s[1] != 0)
adamc@821	2812 return NULL;
adamc@821	2813 else {
adamc@821	2814 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2815 r[0] = s[0];
adamc@821	2816 return r;
adamc@821	2817 }
adamc@821	2818 }
adamc@821	2819
adamc@311	2820 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2821 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2822 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2823
adamc@289	2824 if (!strcasecmp (s, "True"))
adamc@289	2825 return &true;
adamc@289	2826 else if (!strcasecmp (s, "False"))
adamc@289	2827 return &false;
adamc@289	2828 else
adamc@289	2829 return NULL;
adamc@289	2830 }
adamc@292	2831
adamc@436	2832 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2833 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2834 struct tm stm = {};
adam@1392	2835 stm.tm_isdst = -1;
adamc@436	2836
adamc@439	2837 if (dot) {
adamc@439	2838 *dot = 0;
adamc@439	2839 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2840 *dot = '.';
adamc@439	2841 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2842 r->seconds = mktime(&stm);
adam@1365	2843 r->microseconds = 0;
adamc@439	2844 return r;
adamc@439	2845 }
adamc@439	2846 else {
adamc@439	2847 *dot = '.';
adamc@439	2848 return NULL;
adamc@439	2849 }
adamc@436	2850 }
adamc@439	2851 else {
adamc@439	2852 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2853 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2854 r->seconds = mktime(&stm);
adam@1365	2855 r->microseconds = 0;
adamc@439	2856 return r;
adamc@439	2857 }
adamc@439	2858 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2859 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2860 r->seconds = mktime(&stm);
adam@1365	2861 r->microseconds = 0;
adamc@439	2862 return r;
adam@1632	2863 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2864 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2865 r->seconds = mktime(&stm);
adam@1632	2866 r->microseconds = 0;
adam@1632	2867 return r;
adamc@439	2868 }
adamc@439	2869 else
adamc@439	2870 return NULL;
adamc@439	2871 }
adamc@436	2872 }
adamc@436	2873
adam@1352	2874 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2875 char *end = strchr(s, 0);
adam@1374	2876 struct tm stm = {};
adam@1392	2877 stm.tm_isdst = -1;
adam@1352	2878
adam@1352	2879 if (strptime(s, fmt, &stm) == end) {
adam@1352	2880 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2881 r->seconds = mktime(&stm);
adam@1365	2882 r->microseconds = 0;
adam@1352	2883 return r;
adam@1352	2884 }
adam@1352	2885 else
adam@1352	2886 return NULL;
adam@1352	2887 }
adam@1352	2888
adamc@311	2889 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2890 char *endptr;
adamc@311	2891 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2892
adamc@292	2893 if (s != '\0' && endptr == '\0')
adamc@292	2894 return n;
adamc@292	2895 else
adam@1444	2896 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2897 }
adamc@293	2898
adamc@682	2899 #include <errno.h>
adamc@682	2900
adamc@678	2901 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2902 unsigned long long n;
adamc@682	2903
adamc@682	2904 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2905 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	2906 else {
adamc@682	2907 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2908 return ch;
adamc@682	2909 }
adamc@682	2910 }
adamc@682	2911
adamc@682	2912 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2913 char *endptr;
adamc@682	2914 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2915
adamc@678	2916 if (s != '\0' && endptr == '\0')
adamc@678	2917 return n;
adamc@678	2918 else
adam@1444	2919 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	2920 }
adamc@678	2921
adamc@311	2922 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2923 char *endptr;
adamc@311	2924 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2925
adamc@293	2926 if (s != '\0' && endptr == '\0')
adamc@293	2927 return n;
adamc@293	2928 else
adam@1444	2929 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2930 }
adamc@293	2931
adamc@821	2932 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2933 if (s[0] == 0)
adamc@821	2934 return 0;
adamc@821	2935 else if (s[1] != 0)
adam@1444	2936 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	2937 else
adamc@821	2938 return s[0];
adamc@821	2939 }
adamc@821	2940
adamc@311	2941 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2942 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2943 return uw_Basis_True;
adamc@296	2944 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2945 return uw_Basis_False;
adamc@293	2946 else
adam@1444	2947 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2948 }
adamc@436	2949
adam@1352	2950 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	2951 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	2952 struct tm stm = {};
adam@1392	2953 stm.tm_isdst = -1;
adam@1352	2954
adam@1352	2955 if (dot) {
adam@1352	2956 *dot = 0;
adam@1352	2957 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	2958 *dot = '.';
adam@1410	2959 char usec[] = "000000";
adam@1410	2960 int len = strlen(dot+1);
adam@1410	2961 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	2962 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	2963 return r;
adam@1352	2964 }
adam@1352	2965 else {
adam@1352	2966 *dot = '.';
adam@1444	2967 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	2968 }
adam@1352	2969 }
adam@1352	2970 else {
adam@1352	2971 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	2972 uw_Basis_time r = { mktime(&stm) };
adam@1365	2973 return r;
adam@1352	2974 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	2975 uw_Basis_time r = { mktime(&stm) };
adam@1365	2976 return r;
adam@1352	2977 } else
adam@1444	2978 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	2979 }
adam@1352	2980 }
adam@1352	2981
adamc@436	2982 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2983 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2984 struct tm stm = {};
adam@1392	2985 stm.tm_isdst = -1;
adamc@436	2986
adamc@438	2987 if (dot) {
adamc@438	2988 *dot = 0;
adamc@438	2989 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2990 *dot = '.';
adam@1365	2991 {
adam@1365	2992 uw_Basis_time r = { mktime(&stm) };
adam@1365	2993 return r;
adam@1365	2994 }
adamc@438	2995 }
adamc@438	2996 else {
adamc@438	2997 *dot = '.';
adam@1444	2998 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	2999 }
adamc@438	3000 }
adamc@438	3001 else {
adam@1365	3002 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3003 uw_Basis_time r = { mktime(&stm) };
adam@1365	3004 return r;
adam@1365	3005 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3006 uw_Basis_time r = { mktime(&stm) };
adam@1365	3007 return r;
adam@1632	3008 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3009 uw_Basis_time r = { mktime(&stm) };
adam@1632	3010 return r;
adam@1365	3011 } else
adam@1444	3012 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3013 }
adamc@436	3014 }
adamc@457	3015
adam@1352	3016 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3017 char *end = strchr(s, 0);
adamc@939	3018 struct tm stm = {};
adam@1392	3019 stm.tm_isdst = -1;
adamc@939	3020
adam@1365	3021 if (strptime(s, fmt, &stm) == end) {
adam@1365	3022 uw_Basis_time r = { mktime(&stm) };
adam@1365	3023 return r;
adam@1365	3024 } else
adam@1444	3025 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3026 }
adamc@939	3027
adamc@742	3028 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3029 char *r = ctx->heap.front;
adamc@742	3030 uw_Basis_blob b = {len, r};
adamc@742	3031
adamc@742	3032 uw_check_heap(ctx, len);
adamc@742	3033
adamc@742	3034 while (*s) {
adamc@742	3035 if (s[0] == '\\') {
adamc@742	3036 if (s[1] == '\\') {
adamc@742	3037 *r++ = '\\';
adamc@742	3038 s += 2;
adamc@1153	3039 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adamc@742	3040 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	3041 s += 4;
adamc@742	3042 }
adamc@742	3043 else {
adamc@742	3044 *r++ = '\\';
adamc@742	3045 ++s;
adamc@742	3046 }
adamc@742	3047 } else {
adamc@742	3048 *r++ = s[0];
adamc@742	3049 ++s;
adamc@742	3050 }
adamc@742	3051 }
adamc@742	3052
adamc@742	3053 b.size = r - ctx->heap.front;
adamc@742	3054 ctx->heap.front = r;
adamc@742	3055 return b;
adamc@742	3056 }
adamc@742	3057
adam@1402	3058 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3059
adamc@463	3060 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3061 int len = strlen(c);
adamc@854	3062 char *p = ctx->outHeaders.start;
adamc@474	3063
adamc@1134	3064 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3065 char *p2;
adamc@474	3066 p += 13;
adamc@474	3067 p2 = strchr(p, '=');
adamc@474	3068
adamc@474	3069 if (p2) {
adamc@474	3070 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3071
adamc@474	3072 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3073 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3074 return NULL;
adamc@1052	3075 else {
adamc@1052	3076 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3077 memcpy(ret, p2+1, sz);
adamc@1052	3078 ret[sz] = 0;
adamc@1052	3079 return ret;
adamc@1052	3080 }
adamc@474	3081 }
adamc@474	3082 }
adamc@474	3083 }
adamc@463	3084
adamc@1134	3085 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3086 char *p2;
adamc@1051	3087
adamc@854	3088 while (1) {
adamc@1051	3089 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3090 if ((p2 = strchr(p, ';'))) {
adamc@1051	3091 size_t n = p2 - (p + len);
adamc@1051	3092 char *r = uw_malloc(ctx, n);
adamc@1051	3093 memcpy(r, p + 1 + len, n-1);
adamc@1051	3094 r[n-1] = 0;
adamc@1051	3095 return r;
adamc@1051	3096 } else
adamc@1051	3097 return p + 1 + len;
adamc@1134	3098 } else if ((p = strchr(p, ';')))
adamc@854	3099 p += 2;
adamc@463	3100 else
adamc@463	3101 return NULL;
adamc@463	3102 }
adamc@463	3103 }
adamc@792	3104
adamc@792	3105 return NULL;
adamc@457	3106 }
adamc@462	3107
adam@1877	3108 static void set_cookie(uw_context ctx) {
adam@1877	3109 if (ctx->usedSig)
adam@1877	3110 ctx->needsResig = 1;
adam@1877	3111 }
adam@1877	3112
adamc@1050	3113 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	3114 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3115 uw_write_header(ctx, c);
adamc@462	3116 uw_write_header(ctx, "=");
adamc@462	3117 uw_write_header(ctx, v);
adamc@466	3118 uw_write_header(ctx, "; path=");
adamc@466	3119 uw_write_header(ctx, prefix);
adamc@1050	3120 if (expires) {
adamc@1050	3121 char formatted[30];
adam@1392	3122 struct tm tm = {};
adam@1392	3123 tm.tm_isdst = -1;
adamc@1050	3124
adam@1365	3125 gmtime_r(&expires->seconds, &tm);
adamc@1050	3126
adamc@1050	3127 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3128
adamc@1050	3129 uw_write_header(ctx, "; expires=");
adamc@1050	3130 uw_write_header(ctx, formatted);
adamc@1050	3131 }
adamc@1050	3132 if (secure)
adamc@1050	3133 uw_write_header(ctx, "; secure");
adamc@462	3134 uw_write_header(ctx, "\r\n");
adam@1877	3135 set_cookie(ctx);
adamc@462	3136
adamc@462	3137 return uw_unit_v;
adamc@462	3138 }
adamc@667	3139
adamc@1050	3140 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3141 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3142 uw_write_header(ctx, c);
adamc@1050	3143 uw_write_header(ctx, "=; path=");
adamc@1050	3144 uw_write_header(ctx, prefix);
adamc@1052	3145 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3146 set_cookie(ctx);
adamc@1050	3147
adamc@1050	3148 return uw_unit_v;
adamc@1050	3149 }
adamc@1050	3150
adamc@1113	3151 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3152
adamc@682	3153 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3154 unsigned i;
adamc@682	3155 delta *d;
adamc@671	3156
adamc@682	3157 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3158 if (ctx->deltas[i].client == client)
adamc@682	3159 return &ctx->deltas[i];
adamc@671	3160
adamc@682	3161 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3162 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3163 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3164
adamc@682	3165 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3166 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3167 }
adamc@671	3168
adamc@682	3169 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3170 d->client = client;
adam@1369	3171 uw_buffer_reset(&d->msgs);
adamc@682	3172 return d;
adamc@671	3173 }
adamc@671	3174
adamc@668	3175 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3176 if (ctx->client == NULL)
adamc@682	3177 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3178
adamc@682	3179 return new_channel(ctx->client);
adamc@668	3180 }
adamc@668	3181
adamc@668	3182 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3183 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3184 size_t len;
adamc@682	3185 int preLen;
adamc@682	3186 char pre[INTS_MAX + 2];
adamc@668	3187
adamc@682	3188 len = strlen(msg);
adamc@682	3189
adamc@682	3190 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3191
adam@1369	3192 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3193 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3194 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3195
adamc@671	3196 return uw_unit_v;
adamc@668	3197 }
adamc@671	3198
adam@1327	3199 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3200 int i;
adamc@1131	3201 cleanup *cl;
adamc@1131	3202
adamc@1131	3203 if (ctx->client)
adamc@1131	3204 release_client(ctx->client);
adamc@1131	3205
adamc@1131	3206 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3207 cl->func(cl->arg);
adamc@1131	3208
adamc@1131	3209 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3210
adamc@1131	3211 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3212 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3213 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3214
adamc@1131	3215 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3216 if (ctx->transactionals[i].free)
adam@1327	3217 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3218
adam@1931	3219 return (ctx->app && ctx->transaction_started) ? ctx->app->db_rollback(ctx) : 0;
adamc@1131	3220 }
adamc@1131	3221
adam@1728	3222 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@1728	3223
adam@1877	3224 extern int uw_hash_blocksize;
adam@1877	3225
adam@1877	3226 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3227
adam@1877	3228 static char find_sig(char haystack) {
adam@1877	3229 int i;
adam@1877	3230 char *s = strstr(haystack, sig_intro);
adam@1877	3231
adam@1877	3232 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3233 return NULL;
adam@1877	3234
adam@1877	3235 s += sizeof sig_intro - 1;
adam@1877	3236
adam@1877	3237 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3238 if (!isxdigit((int)s[i]))
adam@1877	3239 return NULL;
adam@1877	3240
adam@1877	3241 if (s[i] != '"')
adam@1877	3242 return NULL;
adam@1877	3243
adam@1877	3244 return s;
adam@1877	3245 }
adam@1877	3246
adamc@671	3247 void uw_commit(uw_context ctx) {
adamc@1104	3248 int i;
adam@1877	3249 char *sig;
adamc@1104	3250
adamc@1131	3251 if (uw_has_error(ctx)) {
adam@1327	3252 uw_rollback(ctx, 0);
adamc@1131	3253 return;
adamc@1131	3254 }
adamc@1131	3255
adamc@1104	3256 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3257 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3258 if (ctx->transactionals[i].commit) {
adamc@1083	3259 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3260 if (uw_has_error(ctx)) {
adam@1327	3261 uw_rollback(ctx, 0);
adamc@1131	3262 return;
adamc@1131	3263 }
adamc@1131	3264 }
adamc@771	3265
adamc@1104	3266 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3267 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3268 if (ctx->transactionals[i].commit) {
adamc@1083	3269 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3270 if (uw_has_error(ctx)) {
adam@1327	3271 uw_rollback(ctx, 0);
adamc@1131	3272 return;
adamc@1131	3273 }
adamc@1131	3274 }
adamc@1131	3275
adam@1931	3276 if (ctx->transaction_started && ctx->app->db_commit(ctx)) {
adamc@1131	3277 uw_set_error_message(ctx, "Error running SQL COMMIT");
adamc@1131	3278 return;
adamc@1131	3279 }
adamc@682	3280
adamc@682	3281 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3282 delta *d = &ctx->deltas[i];
adamc@682	3283 client *c = find_client(d->client);
adamc@682	3284
adam@1551	3285 assert (c != NULL);
adam@1551	3286 assert(c->mode == USED);
adamc@682	3287
adam@1447	3288 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3289 }
adamc@682	3290
adamc@682	3291 if (ctx->client)
adamc@685	3292 release_client(ctx->client);
adamc@771	3293
adamc@1104	3294 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3295 if (ctx->transactionals[i].free)
adam@1327	3296 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3297
vshabanoff@1726	3298 uw_check(ctx, 1);
vshabanoff@1726	3299 *ctx->page.front = 0;
adam@1413	3300
adam@1728	3301 if (!ctx->returning_indirectly && !strncmp(ctx->page.start, begin_xhtml, sizeof begin_xhtml - 1)) {
adam@1728	3302 char *s;
adam@1728	3303
adam@1728	3304 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1728	3305 s = ctx->page.start + sizeof begin_xhtml - 1;
adam@1728	3306 s = strchr(s, '<');
adam@1728	3307 if (s == NULL) {
adam@1728	3308 // Weird. Document has no tags!
adam@1728	3309
adam@1728	3310 uw_write(ctx, "<head></head><body></body>");
adam@1728	3311 uw_check(ctx, 1);
adam@1728	3312 *ctx->page.front = 0;
adam@1728	3313 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3314 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3315
adam@1729	3316 // Any freeform JavaScript to include?
adam@1729	3317 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3318 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3319 size_t lenP = lenH + 40 + len;
adam@1729	3320 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3321
adam@1729	3322 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3323 start += ctx->page.start - oldPage;
adam@1729	3324 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3325 ctx->page.front += lenP;
adam@1729	3326 memcpy(start, ctx->script_header, lenH);
adam@1729	3327 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3328 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3329 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3330 } else {
adam@1729	3331 size_t lenH = strlen(ctx->script_header);
adam@1729	3332 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3333
adam@1729	3334 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3335 start += ctx->page.start - oldPage;
adam@1729	3336 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3337 ctx->page.front += lenH;
adam@1729	3338 memcpy(start, ctx->script_header, lenH);
adam@1729	3339 }
adam@1728	3340 } else {
adam@1728	3341 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3342
adam@1729	3343 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3344 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3345 size_t lenP = lenH + 53 + len;
adam@1729	3346 char start = s, oldPage = ctx->page.start;
adam@1729	3347
adam@1729	3348 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3349 start += ctx->page.start - oldPage;
adam@1729	3350 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3351 ctx->page.front += lenP;
adam@1729	3352 memcpy(start, "<head>", 6);
adam@1729	3353 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3354 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3355 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3356 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3357 } else {
adam@1729	3358 size_t lenH = strlen(ctx->script_header);
adam@1729	3359 size_t lenP = lenH + 13;
adam@1729	3360 char start = s, oldPage = ctx->page.start;
adam@1729	3361
adam@1729	3362 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3363 start += ctx->page.start - oldPage;
adam@1729	3364 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3365 ctx->page.front += lenP;
adam@1729	3366 memcpy(start, "<head>", 6);
adam@1729	3367 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3368 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3369 }
adamc@916	3370 }
adamc@916	3371 }
adam@1877	3372
adam@1877	3373 if (ctx->needsResig) {
adam@1877	3374 sig = find_sig(ctx->page.start);
adam@1877	3375 if (sig) {
adam@1877	3376 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3377
adam@1877	3378 do {
adam@1877	3379 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3380 sig = find_sig(sig);
adam@1877	3381 } while (sig);
adam@1877	3382 }
adam@1877	3383 }
adamc@671	3384 }
adamc@671	3385
adamc@683	3386
adamc@1113	3387 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3388
adamc@771	3389 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3390 uw_callback_with_retry free) {
adamc@771	3391 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3392 if (ctx->used_transactionals+1 > uw_transactionals_max)
adamc@1113	3393 uw_error(ctx, FATAL, "Exceeded limit on number of transactionals");
adamc@1084	3394 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3395 ++ctx->n_transactionals;
adamc@771	3396 }
adamc@771	3397
adamc@771	3398 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3399 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3400 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3401 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	3402 }
adamc@771	3403
adamc@683	3404
adamc@683	3405 // "Garbage collection"
adamc@683	3406
adamc@1121	3407 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3408 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3409
adamc@1121	3410 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3411 int r = setjmp(ctx->jmp_buf);
adamc@683	3412
adamc@1121	3413 if (r == 0)
adamc@1121	3414 uw_do_expunge(ctx, cli, data);
adamc@1121	3415 else
adamc@1121	3416 ctx->app->db_rollback(ctx);
adamc@1121	3417
adamc@1121	3418 uw_post_expunge(ctx, data);
adamc@683	3419
adamc@683	3420 return r;
adamc@683	3421 }
adamc@683	3422
adamc@683	3423 void uw_prune_clients(uw_context ctx) {
adamc@683	3424 client c, next, *prev = NULL;
adamc@683	3425 time_t cutoff;
adamc@683	3426
adamc@1094	3427 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3428
adamc@683	3429 pthread_mutex_lock(&clients_mutex);
adam@1707	3430 pruning_thread = pthread_self();
adam@1707	3431 pruning_thread_initialized = 1;
adamc@683	3432
adamc@683	3433 for (c = clients_used; c; c = next) {
adamc@683	3434 next = c->next;
adamc@683	3435 pthread_mutex_lock(&c->lock);
adamc@685	3436 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3437 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3438 if (prev)
adamc@683	3439 prev->next = next;
adamc@683	3440 else
adamc@683	3441 clients_used = next;
adamc@684	3442 uw_reset(ctx);
adamc@683	3443 while (fk == UNLIMITED_RETRY) {
adamc@1121	3444 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3445 if (fk == UNLIMITED_RETRY)
adamc@684	3446 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3447 }
adamc@684	3448 if (fk == SUCCESS)
adamc@684	3449 free_client(c);
adamc@1121	3450 else
adamc@856	3451 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3452 }
adamc@683	3453 else
adamc@683	3454 prev = c;
adamc@683	3455 pthread_mutex_unlock(&c->lock);
adamc@683	3456 }
adamc@683	3457
adamc@683	3458 pthread_mutex_unlock(&clients_mutex);
adamc@683	3459 }
adamc@687	3460
adamc@687	3461 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3462 int r = setjmp(ctx->jmp_buf);
adamc@687	3463
adamc@687	3464 if (r == 0) {
adamc@1094	3465 if (ctx->app->db_begin(ctx))
adamc@687	3466 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adam@1931	3467 ctx->transaction_started = 1;
adamc@1094	3468 ctx->app->initializer(ctx);
adamc@1094	3469 if (ctx->app->db_commit(ctx))
adamc@687	3470 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3471 }
adamc@687	3472
adamc@687	3473 return r;
adamc@687	3474 }
adamc@717	3475
adamc@1065	3476 static int url_bad(uw_Basis_string s) {
adamc@1065	3477 for (; *s; ++s)
adamc@1153	3478 if (!isgraph((int)*s))
adamc@1065	3479 return 1;
adamc@1065	3480
adamc@1065	3481 return 0;
adamc@1065	3482 }
adamc@1065	3483
adamc@717	3484 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3485 if (url_bad(s))
adamc@1065	3486 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3487 if (ctx->app->check_url(s))
adamc@770	3488 return s;
adamc@770	3489 else
adamc@770	3490 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3491 }
adamc@734	3492
adamc@770	3493 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3494 if (url_bad(s))
adamc@1065	3495 return NULL;
adamc@1094	3496 if (ctx->app->check_url(s))
adamc@770	3497 return s;
adamc@770	3498 else
adamc@770	3499 return NULL;
adamc@770	3500 }
adamc@770	3501
adam@1465	3502 static int mime_format(const char *s) {
adamc@770	3503 for (; *s; ++s)
adamc@1153	3504 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.')
adamc@770	3505 return 0;
adamc@770	3506
adamc@770	3507 return 1;
adamc@770	3508 }
adamc@770	3509
adamc@741	3510 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3511 if (!mime_format(s))
adamc@770	3512 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3513
adamc@1094	3514 if (ctx->app->check_mime(s))
adamc@770	3515 return s;
adamc@770	3516 else
adamc@770	3517 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3518 }
adamc@770	3519
adamc@770	3520 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3521 if (!mime_format(s))
adamc@770	3522 return NULL;
adamc@770	3523
adamc@1094	3524 if (ctx->app->check_mime(s))
adamc@770	3525 return s;
adamc@770	3526 else
adamc@770	3527 return NULL;
adamc@741	3528 }
adamc@741	3529
adam@1465	3530 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3531 if (!mime_format(s))
adam@1465	3532 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3533
adam@1465	3534 if (ctx->app->check_requestHeader(s))
adam@1465	3535 return s;
adam@1465	3536 else
adam@1465	3537 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3538 }
adam@1465	3539
adam@1465	3540 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3541 if (!mime_format(s))
adam@1465	3542 return NULL;
adam@1465	3543
adam@1465	3544 if (ctx->app->check_requestHeader(s))
adam@1465	3545 return s;
adam@1465	3546 else
adam@1465	3547 return NULL;
adam@1465	3548 }
adam@1465	3549
adam@1465	3550 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3551 if (!mime_format(s))
adam@1465	3552 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3553
adam@1465	3554 if (ctx->app->check_responseHeader(s))
adam@1465	3555 return s;
adam@1465	3556 else
adam@1465	3557 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3558 }
adam@1465	3559
adam@1799	3560 static int envVar_format(const char *s) {
adam@1799	3561 for (; *s; ++s)
adam@1799	3562 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3563 return 0;
adam@1799	3564
adam@1799	3565 return 1;
adam@1799	3566 }
adam@1799	3567
adam@1465	3568 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3569 if (!envVar_format(s))
adam@1465	3570 return NULL;
adam@1465	3571
adam@1465	3572 if (ctx->app->check_responseHeader(s))
adam@1465	3573 return s;
adam@1465	3574 else
adam@1465	3575 return NULL;
adam@1465	3576 }
adam@1465	3577
adam@1799	3578 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3579 if (!envVar_format(s))
adam@1799	3580 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3581
adam@1799	3582 if (ctx->app->check_envVar(s))
adam@1799	3583 return s;
adam@1799	3584 else
adam@1799	3585 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3586 }
adam@1799	3587
adam@1799	3588 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3589 if (!mime_format(s))
adam@1799	3590 return NULL;
adam@1799	3591
adam@1799	3592 if (ctx->app->check_envVar(s))
adam@1799	3593 return s;
adam@1799	3594 else
adam@1799	3595 return NULL;
adam@1799	3596 }
adam@1799	3597
adam@1465	3598 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3599 return uw_Basis_requestHeader(ctx, name);
adam@1465	3600 }
adam@1465	3601
adam@1465	3602 static int mime_value_format(const char *s) {
adam@1465	3603 for (; *s; ++s)
adam@1465	3604 if (s == '\r' \|\| s == '\n')
adam@1465	3605 return 0;
adam@1465	3606
adam@1465	3607 return 1;
adam@1465	3608 }
adam@1465	3609
adam@1465	3610 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3611 if (!mime_value_format(value))
adam@1465	3612 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3613
adam@1465	3614 uw_write_header(ctx, name);
adam@1465	3615 uw_write_header(ctx, ": ");
adam@1465	3616 uw_write_header(ctx, value);
adam@1465	3617 uw_write_header(ctx, "\r\n");
adam@1465	3618
adam@1465	3619 return uw_unit_v;
adam@1465	3620 }
adam@1465	3621
adam@1799	3622 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1799	3623 return ctx->get_env(ctx->get_env_data, name);
adam@1799	3624 }
adam@1799	3625
adamc@734	3626 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3627 return s ? s : "";
adamc@734	3628 }
adamc@734	3629
adamc@734	3630 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3631 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3632 int i;
adamc@734	3633
adamc@734	3634 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3635 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3636
adamc@734	3637 return r;
adamc@734	3638 }
adamc@734	3639
adam@1512	3640 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3641 * optimizations that would enable timing attacks. See:
adam@1512	3642 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3643 */
adam@1512	3644 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3645 int i, x = 0, len1 = strlen(s1);
adam@1512	3646
adam@1512	3647 if (len1 != strlen(s2)) return 0;
adam@1512	3648
adam@1512	3649 for (i = 0; i < len1; ++i) {
adam@1512	3650 __asm__ __volatile__ ("");
adam@1512	3651 x \|= s1[i] ^ s2[i];
adam@1512	3652 }
adam@1512	3653
adam@1512	3654 return x == 0;
adam@1512	3655 }
adam@1512	3656
adamc@734	3657 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3658 ctx->usedSig = 1;
adamc@1094	3659 return ctx->app->cookie_sig(ctx);
adamc@734	3660 }
adamc@737	3661
adamc@737	3662 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3663 return f.name;
adamc@737	3664 }
adamc@737	3665
adamc@740	3666 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3667 return f.type;
adamc@740	3668 }
adamc@740	3669
adamc@745	3670 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3671 return b.size;
adamc@745	3672 }
adamc@745	3673
adamc@1119	3674 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3675 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3676
adamc@1119	3677 return b;
adamc@1119	3678 }
adamc@1119	3679
adamc@737	3680 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3681 return f.data;
adamc@737	3682 }
adamc@741	3683
adam@1347	3684 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3685 return pb.type;
adam@1347	3686 }
adam@1347	3687
adam@1347	3688 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3689 return pb.data;
adam@1347	3690 }
adam@1347	3691
adam@1471	3692 static char *old_headers(uw_context ctx) {
adam@1471	3693 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3694 return NULL;
adam@1471	3695 else {
adam@1471	3696 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3697
adam@1471	3698 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3699 return NULL;
adam@1471	3700 else {
adam@1471	3701 s = strchr(s+15, '\n');
adam@1471	3702 if (s == NULL)
adam@1471	3703 return NULL;
adam@1471	3704 else
adam@1471	3705 return uw_strdup(ctx, s+1);
adam@1471	3706 }
adam@1471	3707 }
adam@1471	3708 }
adam@1471	3709
adamc@741	3710 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3711 cleanup *cl;
adamc@741	3712 int len;
adam@1471	3713 char *oldh;
adamc@741	3714
adam@1451	3715 if (!ctx->allowed_to_return_indirectly)
adam@1451	3716 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3717
adamc@1065	3718 ctx->returning_indirectly = 1;
adam@1471	3719 oldh = old_headers(ctx);
adam@1369	3720 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3721 uw_buffer_reset(&ctx->page);
adamc@741	3722
adamc@856	3723 uw_write_header(ctx, on_success);
adamc@856	3724 uw_write_header(ctx, "Content-Type: ");
adamc@741	3725 uw_write_header(ctx, mimeType);
adamc@741	3726 uw_write_header(ctx, "\r\nContent-Length: ");
adam@1369	3727 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3728 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3729 ctx->outHeaders.front += len;
adamc@1066	3730 uw_write_header(ctx, "\r\n");
adam@1471	3731 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3732
adam@1369	3733 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3734
adamc@741	3735 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3736 cl->func(cl->arg);
adamc@741	3737
adamc@741	3738 ctx->cleanup_front = ctx->cleanup;
adamc@741	3739
adamc@1065	3740 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3741 }
adamc@1065	3742
adam@1932	3743 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932	3744 cleanup *cl;
adam@1932	3745 int len;
adam@1932	3746 char *oldh;
adam@1932	3747
adam@1932	3748 if (!ctx->allowed_to_return_indirectly)
adam@1932	3749 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932	3750
adam@1932	3751 ctx->returning_indirectly = 1;
adam@1932	3752 oldh = old_headers(ctx);
adam@1932	3753 uw_buffer_reset(&ctx->outHeaders);
adam@1932	3754
adam@1932	3755 uw_write_header(ctx, on_success);
adam@1932	3756 uw_write_header(ctx, "Content-Type: ");
adam@1932	3757 uw_write_header(ctx, mimeType);
adam@1932	3758 uw_write_header(ctx, "\r\nContent-Length: ");
adam@1932	3759 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932	3760 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932	3761 ctx->outHeaders.front += len;
adam@1932	3762 uw_write_header(ctx, "\r\n");
adam@1932	3763 if (oldh) uw_write_header(ctx, oldh);
adam@1932	3764
adam@1932	3765 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932	3766 cl->func(cl->arg);
adam@1932	3767
adam@1932	3768 ctx->cleanup_front = ctx->cleanup;
adam@1932	3769
adam@1932	3770 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932	3771 }
adam@1932	3772
adamc@1065	3773 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3774 cleanup *cl;
adamc@1066	3775 char *s;
adam@1471	3776 char *oldh;
adamc@1065	3777
adam@1451	3778 if (!ctx->allowed_to_return_indirectly)
adam@1451	3779 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3780
adamc@1065	3781 ctx->returning_indirectly = 1;
adam@1471	3782 oldh = old_headers(ctx);
adam@1369	3783 uw_buffer_reset(&ctx->page);
adam@1369	3784 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3785 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3786 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3787 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3788
adam@1409	3789 if (on_success[0])
adam@1409	3790 uw_write_header(ctx, on_redirect);
adam@1409	3791 else
adam@1409	3792 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3793 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3794 if (s) {
adamc@1066	3795 char *s2;
adam@1409	3796 if (s[0] == '\n') ++s;
adam@1409	3797 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3798 *s2 = 0;
adamc@1066	3799 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3800 uw_write_header(ctx, s);
adamc@1066	3801 uw_write_header(ctx, "\n");
adamc@1066	3802 }
adamc@1066	3803 }
adamc@1066	3804 }
adamc@1066	3805
adamc@1065	3806 uw_write_header(ctx, "Location: ");
adamc@1065	3807 uw_write_header(ctx, url);
adamc@1065	3808 uw_write_header(ctx, "\r\n\r\n");
adam@1471	3809 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	3810
adamc@1065	3811 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3812 cl->func(cl->arg);
adamc@1065	3813
adamc@1065	3814 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3815
adamc@1065	3816 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3817 }
adamc@874	3818
adamc@874	3819 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	3820 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	3821
adamc@874	3822 for (; *s; ++s) {
adamc@874	3823 if (s[0] == '\'') {
adamc@874	3824 *r++ = '\'';
adamc@874	3825 for (++s; *s; ++s) {
adamc@874	3826 if (s[0] == '\'') {
adamc@874	3827 *r++ = '\'';
adamc@874	3828 break;
adamc@874	3829 } else if (s[0] == '\\') {
adam@1467	3830 *r++ = '\\';
adam@1467	3831 *r++ = s[1];
adam@1467	3832 ++s;
adamc@874	3833 } else
adamc@874	3834 *r++ = s[0];
adamc@874	3835 }
adamc@874	3836 if (*s == 0) break;
adam@1467	3837 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	3838 s += 3;
adamc@874	3839 else
adamc@874	3840 *r++ = s[0];
adamc@874	3841 }
adamc@874	3842
adam@1467	3843 *r = 0;
adam@1467	3844 return ret;
adamc@874	3845 }
adamc@874	3846
adamc@922	3847 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3848 va_list ap;
adamc@922	3849 size_t len = 1;
adamc@922	3850 char s, r, *s2;
adamc@922	3851
adamc@922	3852 va_start(ap, ctx);
adamc@922	3853 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3854 len += strlen(s);
adamc@922	3855 va_end(ap);
adamc@922	3856
adamc@922	3857 r = uw_malloc(ctx, len);
adamc@922	3858 va_start(ap, ctx);
adamc@922	3859 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3860 while (*s)
adamc@922	3861 s2++ = s++;
adamc@922	3862 va_end(ap);
adamc@922	3863 *s2 = 0;
adamc@922	3864
adamc@922	3865 return r;
adamc@922	3866 }
adamc@1006	3867
adam@1365	3868 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	3869
adamc@1006	3870 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	3871 uw_Basis_time r = { time(NULL) };
adam@1365	3872 return r;
adamc@1006	3873 }
adamc@1061	3874
adam@1369	3875 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	3876 tm.seconds += n;
adam@1365	3877 return tm;
adamc@1138	3878 }
adamc@1138	3879
adam@1514	3880 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	3881 return difftime(tm2.seconds, tm1.seconds);
adam@1514	3882 }
adam@1514	3883
adam@1685	3884 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	3885 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	3886 }
adam@1685	3887
adam@1685	3888 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	3889 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	3890 }
adam@1685	3891
adam@1514	3892 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	3893 return tm.seconds;
adam@1514	3894 }
adam@1514	3895
adamc@1061	3896 void uw_get_global(uw_context ctx, char name) {
adamc@1061	3897 int i;
adamc@1061	3898
adamc@1061	3899 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3900 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	3901 return ctx->globals[i].data;
adamc@1061	3902
adamc@1061	3903 return NULL;
adamc@1061	3904 }
adamc@1061	3905
adamc@1113	3906 size_t uw_globals_max = SIZE_MAX;
adamc@1113	3907
adamc@1061	3908 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	3909 int i;
adamc@1061	3910
adamc@1061	3911 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3912 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	3913 if (ctx->globals[i].free)
adamc@1061	3914 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	3915 ctx->globals[i].data = data;
adamc@1061	3916 ctx->globals[i].free = free;
adamc@1061	3917 return;
adamc@1061	3918 }
adamc@1089	3919
adamc@1113	3920 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	3921 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	3922
adamc@1061	3923 ++ctx->n_globals;
adamc@1061	3924 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	3925 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	3926 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	3927 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	3928 }
adamc@1061	3929
adamc@1061	3930 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	3931 return !!isalnum((int)c);
adamc@1061	3932 }
adamc@1061	3933
adamc@1061	3934 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	3935 return !!isalpha((int)c);
adamc@1061	3936 }
adamc@1061	3937
adamc@1061	3938 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	3939 return !!isblank((int)c);
adamc@1061	3940 }
adamc@1061	3941
adamc@1061	3942 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	3943 return !!iscntrl((int)c);
adamc@1061	3944 }
adamc@1061	3945
adamc@1061	3946 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3947 return !!isdigit((int)c);
adamc@1061	3948 }
adamc@1061	3949
adamc@1061	3950 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	3951 return !!isgraph((int)c);
adamc@1061	3952 }
adamc@1061	3953
adamc@1061	3954 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3955 return !!islower((int)c);
adamc@1061	3956 }
adamc@1061	3957
adamc@1061	3958 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	3959 return !!isprint((int)c);
adamc@1061	3960 }
adamc@1061	3961
adamc@1061	3962 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	3963 return !!ispunct((int)c);
adamc@1061	3964 }
adamc@1061	3965
adamc@1061	3966 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	3967 return !!isspace((int)c);
adamc@1061	3968 }
adamc@1063	3969
adamc@1061	3970 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3971 return !!isupper((int)c);
adamc@1061	3972 }
adamc@1061	3973
adamc@1061	3974 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3975 return !!isxdigit((int)c);
adamc@1061	3976 }
adamc@1061	3977
adamc@1061	3978 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3979 return tolower((int)c);
adamc@1061	3980 }
adamc@1061	3981
adamc@1061	3982 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3983 return toupper((int)c);
adamc@1061	3984 }
adamc@1066	3985
adamc@1128	3986 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	3987 return (unsigned char)c;
adamc@1128	3988 }
adamc@1128	3989
adamc@1128	3990 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	3991 return n;
adamc@1128	3992 }
adamc@1128	3993
adamc@1066	3994 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	3995 return ctx->current_url;
adamc@1066	3996 }
adamc@1066	3997
adamc@1066	3998 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	3999 ctx->current_url = s;
adamc@1066	4000 }
adamc@1114	4001
adamc@1114	4002 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	4003 ctx->deadline = n;
adamc@1114	4004 }
adamc@1114	4005
adamc@1114	4006 void uw_check_deadline(uw_context ctx) {
adamc@1114	4007 if (uw_time > ctx->deadline)
adamc@1114	4008 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	4009 }
adamc@1115	4010
adamc@1115	4011 size_t uw_database_max = SIZE_MAX;
adamc@1120	4012
adam@1389	4013 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@1389	4014 fprintf(stderr, "%s\n", s);
adam@1389	4015 return 0;
adam@1389	4016 }
adam@1389	4017
adamc@1120	4018 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
adam@1334	4019 if (ctx->log_debug)
adam@1334	4020 ctx->log_debug(ctx->logger_data, "%s\n", s);
adam@1334	4021 else
adam@1334	4022 fprintf(stderr, "%s\n", s);
adamc@1120	4023 return uw_unit_v;
adamc@1120	4024 }
adamc@1250	4025
adam@1933	4026 static pthread_mutex_t rand_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@1933	4027
adamc@1250	4028 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@1486	4029 uw_Basis_int ret;
adam@1933	4030 pthread_mutex_lock(&rand_mutex);
adam@1486	4031 int r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@1933	4032 pthread_mutex_unlock(&rand_mutex);
adam@1486	4033
adam@1486	4034 if (r)
adam@1486	4035 return abs(ret);
adam@1486	4036 else
adam@1486	4037 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	4038 }
adam@1347	4039
adam@1347	4040 void uw_noPostBody(uw_context ctx) {
adam@1347	4041 ctx->hasPostBody = 0;
adam@1347	4042 }
adam@1347	4043
adam@1347	4044 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	4045 ctx->hasPostBody = 1;
adam@1347	4046 ctx->postBody = pb;
adam@1347	4047 }
adam@1347	4048
adam@1347	4049 int uw_hasPostBody(uw_context ctx) {
adam@1347	4050 return ctx->hasPostBody;
adam@1347	4051 }
adam@1347	4052
adam@1386	4053 void uw_isPost(uw_context ctx) {
adam@1386	4054 ctx->isPost = 1;
adam@1386	4055 }
adam@1386	4056
adam@1386	4057 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4058 return ctx->isPost;
adam@1386	4059 }
adam@1386	4060
adam@1485	4061 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4062 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4063 }
adam@1485	4064
adam@1370	4065 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4066 ctx->queryString = s;
adam@1370	4067 }
adam@1370	4068
adam@1370	4069 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4070 return ctx->queryString;
adam@1370	4071 }
adam@1370	4072
adam@1347	4073 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4074 if (ctx->hasPostBody)
adam@1347	4075 return ctx->postBody;
adam@1347	4076 else
adam@1347	4077 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4078 }
adam@1349	4079
adam@1349	4080 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4081 int r = setjmp(ctx->jmp_buf);
adam@1349	4082
adam@1349	4083 if (r == 0) {
adam@1418	4084 if (ctx->app->db_begin(ctx))
adam@1418	4085 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1931	4086 ctx->transaction_started = 1;
adam@1418	4087
adam@1349	4088 callback(ctx);
adam@1349	4089 }
adam@1349	4090
adam@1349	4091 return r;
adam@1349	4092 }
adam@1360	4093
adam@1360	4094 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4095 char buf[14];
adam@1397	4096 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4097 }
adam@1365	4098
adam@1365	4099 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4100 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	4101 }
adam@1365	4102
adam@1365	4103 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4104 return !!(t1.seconds < t2.seconds \|\| t1.microseconds < t2.microseconds);
adam@1365	4105 }
adam@1365	4106
adam@1365	4107 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4108 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4109 }
adam@1365	4110
adam@1372	4111 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4112 struct tm stm = {};
adam@1375	4113 char *end = strchr(s, 0);
adam@1449	4114 stm.tm_isdst = -1;
adam@1375	4115
adam@1632	4116 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4117 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4118
kkallio@1448	4119 r->seconds = timegm(&stm);
adam@1373	4120 r->microseconds = 0;
adam@1373	4121
adam@1373	4122 return r;
adam@1374	4123 }
adam@1374	4124 else
adam@1373	4125 return NULL;
adam@1372	4126 }
adam@1407	4127
adam@1407	4128 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4129 int r = setjmp(ctx->jmp_buf);
adam@1407	4130
adam@1407	4131 if (ctx->app->on_error) {
adam@1407	4132 if (r == 0) {
adam@1407	4133 if (ctx->app->db_begin(ctx))
adam@1407	4134 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1931	4135 ctx->transaction_started = 1;
adam@1407	4136
adam@1409	4137 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4138 if (on_success[0])
adam@1409	4139 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4140 else
adam@1409	4141 uw_write_header(ctx, "Status: ");
adam@1409	4142 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919	4143 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1407	4144 uw_write(ctx, begin_xhtml);
adam@1407	4145 ctx->app->on_error(ctx, msg);
adam@1407	4146 uw_write(ctx, "</html>");
adam@1407	4147 }
adam@1407	4148
adam@1407	4149 return r;
adam@1407	4150 } else
adam@1407	4151 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4152 }
adam@1451	4153
adam@1451	4154 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4155 ctx->allowed_to_return_indirectly = 1;
adam@1451	4156 }
adam@1483	4157
adam@1556	4158 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4159 int len;
adam@1703	4160 char *r;
adam@1703	4161
adam@1703	4162 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4163 r = ctx->heap.front;
adam@1703	4164 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4165 ctx->heap.front += len+1;
adam@1703	4166 return r;
adam@1556	4167 }
adam@1571	4168
adam@1571	4169 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4170 return n;
adam@1571	4171 }
adam@1571	4172
adam@1571	4173 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4174 return ceil(n);
adam@1571	4175 }
adam@1571	4176
adam@1571	4177 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4178 return trunc(n);
adam@1571	4179 }
adam@1571	4180
adam@1571	4181 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4182 return round(n);
adam@1571	4183 }
adam@1755	4184
adam@1755	4185 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755	4186 char *p;
adam@1755	4187
adam@1755	4188 for (p = s; *p; ++p) {
adam@1755	4189 char c = *p;
adam@1801	4190 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755	4191 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4192 }
adam@1755	4193
adam@1755	4194 return s;
adam@1755	4195 }
adam@1755	4196
adam@1755	4197 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4198 char *p;
adam@1755	4199
adam@1755	4200 for (p = s; *p; ++p) {
adam@1755	4201 char c = *p;
adam@1801	4202 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4203 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4204 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4205 }
adam@1755	4206
adam@1755	4207 return s;
adam@1755	4208 }
adam@1755	4209
adam@1755	4210 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4211 char *p;
adam@1755	4212
adam@1755	4213 if (!*s)
adam@1755	4214 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4215
adam@1801	4216 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4217 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4218
adam@1755	4219 for (p = s; *p; ++p) {
adam@1755	4220 char c = *p;
adam@1801	4221 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4222 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4223 }
adam@1755	4224
adam@1755	4225 return s;
adam@1755	4226 }
adam@1787	4227
adam@1787	4228 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4229 return f.name;
adam@1787	4230 }
adam@1787	4231
adam@1787	4232 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4233 return f.value;
adam@1787	4234 }
adam@1787	4235
adam@1787	4236 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4237 return f.remaining;
adam@1787	4238 }
adam@1787	4239
adam@1787	4240 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4241 char *unurl;
adam@1787	4242 uw_Basis_postField *f;
adam@1787	4243
adam@1788	4244 if (!ctx->hasPostBody)
adam@1788	4245 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4246
adam@1788	4247 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4248 return NULL;
adam@1787	4249
adam@1787	4250 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4251 unurl = s;
adam@1787	4252 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4253 s = strchr(s, 0);
adam@1788	4254 if (!s)
adam@1788	4255 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4256 ++s;
adam@1788	4257 unurl = s;
adam@1788	4258 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4259 s = strchr(s, 0);
adam@1788	4260 if (!s)
adam@1788	4261 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4262 f->remaining = s+1;
adam@1787	4263
adam@1787	4264 return f;
adam@1787	4265 }

Mercurial > urweb

annotate src/c/urweb.c @ 1933:8e6e3d9cea22