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

annotate src/c/urweb.c @ 2049:459ccbf8cd08

When unifying constructor-level unification variables, also unify their kinds

author	Adam Chlipala <adam@chlipala.net>
date	Fri, 01 Aug 2014 16:11:36 -0400
parents	ced78ef1c82f
children	4ad46302f659

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
adam@1936	444 int needs_push, needs_sig, could_write_db;
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
grrwlf@1997	463 uw_loggers *loggers;
adam@1334	464
adam@1386	465 int isPost, hasPostBody;
adam@1347	466 uw_Basis_postBody postBody;
adam@1370	467 uw_Basis_string queryString;
adam@1347	468
adam@1556	469 unsigned nextId;
adam@1556	470
adam@1782	471 int amInitializing;
adam@1782	472
adamc@167	473 char error_message[ERROR_BUF_LEN];
adam@1877	474
adam@1877	475 int usedSig, needsResig;
adam@1949	476
adam@1949	477 char *output_buffer;
adam@1949	478 size_t output_buffer_size;
adamc@117	479 };
adamc@117	480
adamc@1113	481 size_t uw_headers_max = SIZE_MAX;
adamc@1113	482 size_t uw_page_max = SIZE_MAX;
adamc@1113	483 size_t uw_heap_max = SIZE_MAX;
adamc@1113	484 size_t uw_script_max = SIZE_MAX;
adamc@1113	485
grrwlf@1997	486 uw_context uw_init(int id, uw_loggers *lg) {
adamc@311	487 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	488
adamc@1094	489 ctx->app = NULL;
adam@1446	490 ctx->id = id;
adamc@1094	491
adamc@854	492 ctx->get_header = NULL;
adamc@854	493 ctx->get_header_data = NULL;
adamc@457	494
adam@1799	495 ctx->get_env = NULL;
adam@1799	496 ctx->get_env_data = NULL;
adam@1799	497
adam@1413	498 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413	499 ctx->outHeaders.start[0] = 0;
adam@1413	500 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413	501 ctx->page.start[0] = 0;
adam@1451	502 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	503 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369	504 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667	505 ctx->script.start[0] = 0;
adamc@136	506
adamc@1094	507 ctx->inputs = malloc(0);
adamc@759	508 ctx->cur_container = NULL;
adamc@756	509 ctx->subinputs = malloc(0);
adamc@1094	510 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	511
adamc@272	512 ctx->db = NULL;
adam@1931	513 ctx->transaction_started = 0;
adamc@272	514
adamc@323	515 ctx->regions = NULL;
adamc@323	516
adamc@425	517 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	518
adamc@643	519 ctx->script_header = "";
adamc@693	520 ctx->needs_push = 0;
adamc@736	521 ctx->needs_sig = 0;
adam@1936	522 ctx->could_write_db = 1;
adamc@1104	523
adamc@565	524 ctx->source_count = 0;
adamc@562	525
adamc@682	526 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	527 ctx->deltas = malloc(0);
adamc@671	528
adamc@700	529 ctx->client = NULL;
adamc@700	530
adamc@700	531 ctx->error_message[0] = 0;
adamc@700	532
adamc@771	533 ctx->transactionals = malloc(0);
adamc@771	534 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	535
adamc@1061	536 ctx->globals = malloc(0);
adamc@1061	537 ctx->n_globals = 0;
adamc@1061	538
adamc@1066	539 ctx->current_url = "";
adamc@1066	540
adamc@1114	541 ctx->deadline = INT_MAX;
adamc@1114	542
adamc@1121	543 ctx->client_data = uw_init_client_data();
adamc@1121	544
grrwlf@1997	545 ctx->loggers = lg;
adam@1334	546
adam@1386	547 ctx->isPost = ctx->hasPostBody = 0;
adam@1347	548
adam@1370	549 ctx->queryString = NULL;
adam@1370	550
adam@1556	551 ctx->nextId = 0;
adam@1556	552
adam@1782	553 ctx->amInitializing = 0;
adam@1782	554
adam@1877	555 ctx->usedSig = 0;
adam@1877	556 ctx->needsResig = 0;
adam@1877	557
adam@1949	558 ctx->output_buffer = malloc(1);
adam@1949	559 ctx->output_buffer_size = 1;
adam@1949	560
adamc@117	561 return ctx;
adamc@106	562 }
adamc@106	563
adamc@1113	564 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	565
adamc@1121	566 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	567 return ctx->app;
adamc@1121	568 }
adamc@1121	569
adamc@1113	570 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	571 ctx->app = app;
adamc@1094	572
adamc@1105	573 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	574 if (app->inputs_len > uw_inputs_max)
adamc@1113	575 return 1;
adamc@1113	576
adamc@1094	577 ctx->sz_inputs = app->inputs_len;
adamc@1094	578 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	579 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	580 }
adamc@1134	581
adamc@1134	582 return 0;
adamc@1094	583 }
adamc@1094	584
adamc@1121	585 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	586 uw_copy_client_data(ctx->client_data, data);
adamc@1121	587 }
adamc@1121	588
adamc@311	589 void uw_set_db(uw_context ctx, void *db) {
adamc@272	590 ctx->db = db;
adamc@272	591 }
adamc@272	592
adamc@311	593 void *uw_get_db(uw_context ctx) {
adamc@272	594 return ctx->db;
adamc@272	595 }
adamc@272	596
grrwlf@1997	597
grrwlf@1997	598 uw_loggers* uw_get_loggers(struct uw_context *ctx) {
grrwlf@1997	599 return ctx->loggers;
grrwlf@1997	600 }
grrwlf@1997	601
adamc@311	602 void uw_free(uw_context ctx) {
adamc@671	603 size_t i;
adamc@671	604
adam@1369	605 uw_buffer_free(&ctx->outHeaders);
adam@1369	606 uw_buffer_free(&ctx->script);
adam@1369	607 uw_buffer_free(&ctx->page);
adam@1369	608 uw_buffer_free(&ctx->heap);
adamc@144	609 free(ctx->inputs);
adamc@756	610 free(ctx->subinputs);
adamc@425	611 free(ctx->cleanup);
adamc@771	612 free(ctx->transactionals);
adamc@1121	613 uw_free_client_data(ctx->client_data);
adamc@671	614
adamc@682	615 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	616 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	617 free(ctx->deltas);
adamc@671	618
adamc@1061	619 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	620 if (ctx->globals[i].free)
adamc@1089	621 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	622 free(ctx->globals);
adamc@1061	623
adam@1949	624 free(ctx->output_buffer);
adam@1949	625
adamc@136	626 free(ctx);
adamc@136	627 }
adamc@136	628
adamc@562	629 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	630 uw_buffer_reset(&ctx->outHeaders);
adam@1369	631 uw_buffer_reset(&ctx->script);
adamc@667	632 ctx->script.start[0] = 0;
adam@1369	633 uw_buffer_reset(&ctx->page);
adam@1451	634 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	635 uw_buffer_reset(&ctx->heap);
adamc@323	636 ctx->regions = NULL;
adamc@425	637 ctx->cleanup_front = ctx->cleanup;
adamc@682	638 ctx->used_deltas = 0;
adamc@682	639 ctx->client = NULL;
adamc@759	640 ctx->cur_container = NULL;
adamc@771	641 ctx->used_transactionals = 0;
adamc@1117	642 ctx->script_header = "";
adam@1370	643 ctx->queryString = NULL;
adam@1556	644 ctx->nextId = 0;
adam@1782	645 ctx->amInitializing = 0;
adam@1877	646 ctx->usedSig = 0;
adam@1877	647 ctx->needsResig = 0;
adamc@167	648 }
adamc@167	649
adamc@562	650 void uw_reset_keep_request(uw_context ctx) {
adamc@562	651 uw_reset_keep_error_message(ctx);
adamc@562	652 ctx->error_message[0] = 0;
adamc@167	653 }
adamc@167	654
adamc@311	655 void uw_reset(uw_context ctx) {
adamc@311	656 uw_reset_keep_request(ctx);
adamc@1105	657 if (ctx->app)
adamc@1105	658 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	659 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461	660 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adam@1943	661 ctx->transaction_started = 0;
adamc@144	662 }
adamc@144	663
adamc@311	664 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	665 int r = setjmp(ctx->jmp_buf);
adamc@272	666
adamc@1105	667 if (r == 0 && ctx->app)
adamc@1094	668 ctx->app->db_init(ctx);
adamc@272	669
adamc@272	670 return r;
adamc@272	671 }
adamc@272	672
adamc@1118	673 void uw_close(uw_context ctx) {
adamc@1118	674 ctx->app->db_close(ctx);
adamc@1118	675 }
adamc@1118	676
adam@1446	677 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	678 return ctx->get_header(ctx->get_header_data, h);
adam@1446	679 }
adam@1446	680
adamc@854	681 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	682 ctx->get_header = get_header;
adamc@854	683 ctx->get_header_data = get_header_data;
adamc@742	684 }
adamc@742	685
adam@1799	686 void uw_set_env(uw_context ctx, char (get_env)(void , const char ), void *get_env_data) {
adam@1799	687 ctx->get_env = get_env;
adam@1799	688 ctx->get_env_data = get_env_data;
adam@1799	689 }
adam@1799	690
adamc@801	691 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	692 va_list ap;
adamc@801	693 va_start(ap, fmt);
adamc@801	694
adamc@801	695 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	696 }
adamc@801	697
adamc@1131	698 int uw_has_error(uw_context ctx) {
adamc@1131	699 return ctx->error_message[0] != 0;
adamc@1131	700 }
adamc@1131	701
adamc@311	702 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	703 cleanup *cl;
adamc@425	704
adamc@167	705 va_list ap;
adamc@167	706 va_start(ap, fmt);
adamc@167	707
adamc@167	708 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	709
adamc@425	710 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	711 cl->func(cl->arg);
adamc@425	712
adamc@425	713 ctx->cleanup_front = ctx->cleanup;
adamc@425	714
adamc@190	715 longjmp(ctx->jmp_buf, fk);
adamc@167	716 }
adamc@167	717
adamc@1113	718 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	719
adamc@425	720 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	721 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	722 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	723 if (len == 0)
adamc@425	724 newLen = 1;
adamc@425	725 else
adamc@428	726 newLen = len * 2;
adamc@1113	727
adamc@1134	728 if (newLen > uw_cleanup_max) {
adamc@1113	729 if (len+1 <= uw_cleanup_max)
adamc@1113	730 newLen = uw_cleanup_max;
adamc@1113	731 else
adamc@1113	732 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	733 }
adamc@1113	734
adamc@470	735 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	736 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	737 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	738 }
adamc@425	739
adamc@425	740 ctx->cleanup_front->func = func;
adamc@425	741 ctx->cleanup_front->arg = arg;
adamc@425	742 ++ctx->cleanup_front;
adamc@425	743 }
adamc@425	744
adam@1444	745 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	746
adamc@682	747 void uw_login(uw_context ctx) {
adam@1942	748 char id_s, pass_s;
adam@1942	749
adam@1942	750 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adam@1942	751 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adam@1942	752 unsigned id = atoi(id_s);
adam@1942	753 int pass = atoi(pass_s);
adam@1942	754 client *c = find_client(id);
adam@1942	755
adam@1942	756 if (c == NULL)
adam@1942	757 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", uw_Basis_htmlifyString(ctx, id_s), uw_Basis_htmlifyString(ctx, pass_s));
adam@1942	758 else {
adamc@685	759 use_client(c);
adamc@682	760 ctx->client = c;
adam@1942	761
adam@1942	762 if (c->mode != USED)
adam@1942	763 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adam@1942	764 if (c->pass != pass)
adam@1942	765 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@864	766 }
adam@1942	767 } else if (ctx->needs_push) {
adam@1942	768 client *c = new_client();
adam@1942	769
adam@1942	770 if (c == NULL)
adam@1942	771 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adam@1942	772
adam@1942	773 use_client(c);
adam@1942	774 uw_copy_client_data(c->data, ctx->client_data);
adam@1942	775 ctx->client = c;
adamc@682	776 }
adamc@682	777 }
adamc@682	778
adamc@671	779 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	780 int r = setjmp(ctx->jmp_buf);
adamc@671	781
adam@1931	782 if (r == 0)
adam@1931	783 ctx->app->handle(ctx, path);
adam@1931	784
adam@1931	785 return r;
adam@1931	786 }
adam@1931	787
adam@1931	788 void uw_ensure_transaction(uw_context ctx) {
adam@1931	789 if (!ctx->transaction_started) {
adam@1936	790 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adamc@671	791 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1931	792 ctx->transaction_started = 1;
adamc@671	793 }
adamc@671	794 }
adamc@671	795
adamc@772	796 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	797 if (ctx->client == NULL)
adamc@682	798 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	799
adamc@682	800 return ctx->client->id;
adamc@682	801 }
adamc@682	802
adamc@425	803 void uw_pop_cleanup(uw_context ctx) {
adamc@425	804 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	805 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	806
adamc@425	807 --ctx->cleanup_front;
adamc@425	808 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	809 }
adamc@425	810
adamc@311	811 char *uw_error_message(uw_context ctx) {
adamc@167	812 return ctx->error_message;
adamc@167	813 }
adamc@167	814
adamc@1115	815 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	816 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	817 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	818 }
adamc@1115	819
adamc@759	820 static input *INP(uw_context ctx) {
adamc@759	821 if (ctx->cur_container == NULL)
adamc@759	822 return ctx->inputs;
adamc@759	823 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	824 return ctx->cur_container->data.subform.fields;
adamc@759	825 else if (ctx->cur_container->kind == ENTRY)
adamc@759	826 return ctx->cur_container->data.entry.fields;
adamc@759	827 else
adamc@760	828 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	829 }
adamc@759	830
adamc@760	831 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	832 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	833 *ptr += new_start - old_start;
adamc@760	834 }
adamc@760	835
adamc@760	836 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	837 switch (x->kind) {
adamc@759	838 case SUBFORM:
adamc@760	839 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	840 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	841 break;
adamc@759	842 case SUBFORMS:
adamc@760	843 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	844 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	845 break;
adamc@759	846 case ENTRY:
adamc@760	847 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	848 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	849 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	850 break;
adamc@1134	851 default:
adamc@1134	852 break;
phurst@1981	853 }
adamc@759	854 }
adamc@759	855
adamc@1113	856 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	857
adamc@759	858 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	859 size_t i;
adamc@759	860 input *r;
adamc@759	861
adamc@759	862 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	863 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	864 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	865
adamc@759	866 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	867
adamc@760	868 if (ctx->subinputs != new_subinputs) {
adamc@760	869 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	870 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	871 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	872 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	873
adamc@760	874 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	875
adamc@760	876 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	877 ctx->subinputs = new_subinputs;
adamc@760	878 }
adamc@759	879 }
adamc@759	880
adamc@759	881 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	882
adamc@759	883 for (i = 0; i < len; ++i)
adam@1474	884 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	885
adamc@759	886 return r;
adamc@759	887 }
adamc@756	888
adamc@801	889 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	890 //printf("Input name %s\n", name);
adamc@1038	891
adamc@756	892 if (!strcasecmp(name, ".b")) {
adamc@1094	893 int n = ctx->app->input_num(value);
adamc@756	894 input *inps;
adamc@756	895
adamc@801	896 if (n < 0) {
adam@1444	897 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	898 return -1;
adamc@801	899 }
adamc@801	900
adamc@1094	901 if (n >= ctx->app->inputs_len) {
adam@1444	902 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	903 return -1;
adamc@801	904 }
adamc@756	905
adamc@1094	906 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	907
adamc@759	908 INP(ctx)[n].kind = SUBFORM;
adamc@759	909 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	910 INP(ctx)[n].data.subform.fields = inps;
adamc@759	911 ctx->cur_container = &INP(ctx)[n];
adamc@756	912 } else if (!strcasecmp(name, ".e")) {
adamc@756	913 input *tmp;
adamc@756	914
adamc@801	915 if (ctx->cur_container == NULL) {
adamc@801	916 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	917 return -1;
adamc@801	918 }
adamc@756	919
adamc@759	920 tmp = ctx->cur_container;
adamc@759	921 switch (tmp->kind) {
adamc@759	922 case SUBFORM:
adamc@759	923 ctx->cur_container = tmp->data.subform.parent;
adamc@759	924 tmp->data.subform.parent = NULL;
adamc@759	925 break;
adamc@759	926 case SUBFORMS:
adamc@759	927 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	928 tmp->data.subforms.parent = NULL;
adamc@759	929 break;
adamc@759	930 case ENTRY:
adamc@759	931 ctx->cur_container = tmp->data.entry.parent;
adamc@759	932 break;
adamc@759	933 default:
adamc@801	934 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	935 return -1;
adamc@759	936 }
adamc@759	937 } else if (!strcasecmp(name, ".s")) {
adamc@1094	938 int n = ctx->app->input_num(value);
adamc@759	939
adamc@801	940 if (n < 0) {
adam@1444	941 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	942 return -1;
adamc@801	943 }
adamc@801	944
adamc@1094	945 if (n >= ctx->app->inputs_len) {
adam@1444	946 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	947 return -1;
adamc@801	948 }
adamc@759	949
adamc@759	950 INP(ctx)[n].kind = SUBFORMS;
adamc@759	951 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	952 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	953 ctx->cur_container = &INP(ctx)[n];
adamc@759	954 } else if (!strcasecmp(name, ".i")) {
adamc@759	955 input *inps;
adamc@759	956
adamc@801	957 if (!ctx->cur_container) {
adamc@801	958 uw_set_error(ctx, "New entry without container");
adamc@801	959 return -1;
adamc@801	960 }
adamc@801	961
adamc@801	962 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	963 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	964 return -1;
adamc@801	965 }
adamc@759	966
adamc@1094	967 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	968
adamc@759	969 inps->kind = ENTRY;
adamc@759	970 inps->data.entry.parent = ctx->cur_container;
adamc@759	971 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	972 ctx->cur_container->data.subforms.entries = inps;
adamc@759	973
adamc@759	974 inps->data.entry.fields = inps+1;
adamc@759	975 ctx->cur_container = inps;
adamc@756	976 } else {
adamc@1094	977 int n = ctx->app->input_num(name);
adamc@756	978
adam@1384	979 if (n < 0)
adam@1384	980 return 0;
adamc@801	981
adamc@1094	982 if (n >= ctx->app->inputs_len) {
adam@1444	983 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	984 return -1;
adamc@801	985 }
adamc@756	986
adamc@756	987 INP(ctx)[n].kind = NORMAL;
adamc@756	988 INP(ctx)[n].data.normal = value;
adamc@756	989 }
adamc@801	990
adamc@801	991 return 0;
adamc@144	992 }
adamc@144	993
adamc@311	994 char *uw_get_input(uw_context ctx, int n) {
adamc@169	995 if (n < 0)
adamc@311	996 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	997 if (n >= ctx->app->inputs_len)
adamc@311	998 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	999
adamc@756	1000 switch (INP(ctx)[n].kind) {
adamc@737	1001 case UNSET:
adamc@737	1002 return NULL;
adamc@739	1003 case FIL:
adamc@739	1004 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1005 case SUBFORM:
adamc@756	1006 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1007 case SUBFORMS:
adamc@759	1008 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1009 case ENTRY:
adamc@759	1010 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1011 case NORMAL:
adamc@756	1012 return INP(ctx)[n].data.normal;
adamc@737	1013 default:
adamc@737	1014 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1015 }
adamc@138	1016 }
adamc@138	1017
adamc@311	1018 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	1019 if (n < 0)
adamc@311	1020 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1021 if (n >= ctx->app->inputs_len)
adamc@311	1022 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1023
adamc@756	1024 switch (INP(ctx)[n].kind) {
adamc@737	1025 case UNSET:
adamc@737	1026 return "";
adamc@739	1027 case FIL:
adamc@739	1028 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1029 case SUBFORM:
adamc@756	1030 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1031 case SUBFORMS:
adamc@759	1032 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1033 case ENTRY:
adamc@759	1034 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1035 case NORMAL:
adamc@756	1036 return INP(ctx)[n].data.normal;
adamc@737	1037 default:
adamc@737	1038 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1039 }
adamc@737	1040 }
adamc@737	1041
adamc@801	1042 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1043 int n = ctx->app->input_num(name);
adamc@737	1044
adamc@801	1045 if (n < 0) {
adam@1444	1046 uw_set_error(ctx, "Bad file input name %s", uw_Basis_htmlifyString(ctx, name));
adamc@801	1047 return -1;
adamc@801	1048 }
adamc@801	1049
adamc@1094	1050 if (n >= ctx->app->inputs_len) {
adam@1444	1051 uw_set_error(ctx, "For file input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	1052 return -1;
adamc@801	1053 }
adamc@737	1054
adamc@739	1055 ctx->inputs[n].kind = FIL;
adamc@739	1056 ctx->inputs[n].data.file = f;
adamc@801	1057
adamc@801	1058 return 0;
adamc@737	1059 }
adamc@737	1060
adamc@739	1061 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1062
adamc@739	1063 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1064 if (n < 0)
adamc@737	1065 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1066 if (n >= ctx->app->inputs_len)
adamc@737	1067 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1068
adamc@756	1069 switch (INP(ctx)[n].kind) {
adamc@737	1070 case UNSET:
adamc@737	1071 {
adamc@739	1072 char *data = uw_malloc(ctx, 0);
adamc@740	1073 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1074 return f;
adamc@737	1075 }
adamc@739	1076 case FIL:
adamc@756	1077 return INP(ctx)[n].data.file;
adamc@737	1078 case NORMAL:
adamc@737	1079 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1080 case SUBFORM:
adamc@756	1081 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1082 case SUBFORMS:
adamc@759	1083 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1084 case ENTRY:
adamc@759	1085 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1086 default:
adamc@737	1087 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1088 }
adamc@190	1089 }
adamc@190	1090
adamc@756	1091 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1092 if (n < 0)
adamc@756	1093 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1094 if (n >= ctx->app->inputs_len)
adamc@756	1095 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1096
adamc@756	1097 switch (INP(ctx)[n].kind) {
adamc@756	1098 case UNSET:
adamc@756	1099 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1100 case FIL:
adamc@756	1101 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1102 case NORMAL:
adamc@756	1103 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1104 case SUBFORMS:
adamc@759	1105 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1106 case ENTRY:
adamc@759	1107 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1108 case SUBFORM:
adamc@759	1109 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1110 ctx->cur_container = &INP(ctx)[n];
adamc@756	1111 return;
adamc@756	1112 default:
adamc@756	1113 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1114 }
adamc@756	1115 }
adamc@756	1116
adamc@756	1117 void uw_leave_subform(uw_context ctx) {
adamc@756	1118 input *tmp;
adamc@756	1119
adamc@759	1120 if (ctx->cur_container == NULL)
adamc@756	1121 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1122
adamc@759	1123 tmp = ctx->cur_container;
adamc@759	1124 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1125 tmp->data.subform.parent = NULL;
adamc@759	1126 }
adamc@759	1127
adamc@759	1128 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1129 input *inps;
adamc@759	1130
adamc@759	1131 if (n < 0)
adamc@759	1132 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1133 if (n >= ctx->app->inputs_len)
adamc@759	1134 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1135
adamc@759	1136 switch (INP(ctx)[n].kind) {
adamc@759	1137 case UNSET:
adamc@759	1138 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1139 case FIL:
adamc@759	1140 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1141 case NORMAL:
adamc@759	1142 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1143 case SUBFORM:
adamc@759	1144 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1145 case ENTRY:
adamc@759	1146 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1147 case SUBFORMS:
adamc@759	1148 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1149 if (inps) {
adamc@759	1150 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1151 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1152 return 1;
adamc@759	1153 } else
adamc@759	1154 return 0;
adamc@759	1155 default:
adamc@759	1156 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1157 }
adamc@759	1158 }
adamc@759	1159
adamc@759	1160 int uw_next_entry(uw_context ctx) {
adamc@759	1161 if (ctx->cur_container == NULL)
adamc@759	1162 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1163
adamc@759	1164 switch (ctx->cur_container->kind) {
adamc@759	1165 case UNSET:
adamc@759	1166 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1167 case FIL:
adamc@759	1168 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1169 case NORMAL:
adamc@759	1170 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1171 case SUBFORM:
adamc@759	1172 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1173 case SUBFORMS:
adamc@759	1174 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1175 case ENTRY:
adamc@759	1176 if (ctx->cur_container->data.entry.next) {
adamc@759	1177 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1178 return 1;
adamc@759	1179 } else {
adamc@759	1180 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1181 return 0;
adamc@759	1182 }
adamc@759	1183 default:
adamc@759	1184 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1185 }
adamc@756	1186 }
adamc@756	1187
adamc@643	1188 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1189 ctx->script_header = s;
adamc@643	1190 }
adamc@643	1191
adamc@1094	1192 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1193 return ctx->app->url_prefix;
adamc@667	1194 }
adamc@667	1195
adamc@693	1196 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1197 ctx->needs_push = n;
adamc@693	1198 }
adamc@693	1199
adamc@736	1200 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1201 ctx->needs_sig = n;
adamc@736	1202 }
adamc@736	1203
adam@1936	1204 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936	1205 ctx->could_write_db = n;
adam@1936	1206 }
adam@1936	1207
adamc@667	1208
adam@1369	1209 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1210 if (b->back - b->front < extra) {
adamc@666	1211 size_t desired = b->front - b->start + extra, next;
adamc@136	1212 char *new_heap;
adamc@136	1213
adamc@666	1214 next = b->back - b->start;
adamc@317	1215 if (next == 0)
adamc@317	1216 next = 1;
adamc@317	1217 for (; next < desired; next *= 2);
adamc@136	1218
adamc@1134	1219 if (next > b->max) {
adamc@1113	1220 if (desired <= b->max)
adamc@1113	1221 next = desired;
adamc@1113	1222 else
adamc@1113	1223 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1224 }
adamc@1113	1225
adamc@666	1226 new_heap = realloc(b->start, next);
adamc@666	1227 b->front = new_heap + (b->front - b->start);
adamc@666	1228 b->back = new_heap + next;
adamc@136	1229
adamc@667	1230 if (new_heap != b->start) {
adamc@666	1231 b->start = new_heap;
adam@1389	1232 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1233 }
adamc@136	1234
adamc@666	1235 b->start = new_heap;
adamc@136	1236 }
adamc@136	1237 }
adamc@136	1238
adamc@832	1239 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1240 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1241 }
adamc@666	1242
adamc@832	1243 char *uw_heap_front(uw_context ctx) {
adamc@832	1244 return ctx->heap.front;
adamc@832	1245 }
adamc@832	1246
adamc@832	1247 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1248 ctx->heap.front = fr;
adamc@832	1249 }
adamc@832	1250
adam@1782	1251 void uw_begin_initializing(uw_context ctx) {
adam@1782	1252 ctx->amInitializing = 1;
adam@1782	1253 }
adam@1782	1254
adam@1782	1255 void uw_end_initializing(uw_context ctx) {
adam@1782	1256 ctx->amInitializing = 0;
adam@1782	1257 }
adam@1782	1258
adam@2013	1259 static void align_heap(uw_context ctx) {
adam@2013	1260 size_t posn = ctx->heap.front - ctx->heap.start;
adam@2013	1261
adam@2017	1262 if (posn % sizeof(void *) != 0) {
adam@2017	1263 size_t bump = sizeof(void ) - posn % sizeof(void );
adam@2013	1264 uw_check_heap(ctx, bump);
adam@2013	1265 ctx->heap.front += bump;
adam@2013	1266 }
adam@2013	1267 }
adam@2013	1268
adamc@311	1269 void *uw_malloc(uw_context ctx, size_t len) {
adam@2013	1270 // On some architectures, it's important that all word-sized memory accesses
adam@2013	1271 // be to word-aligned addresses, so we'll do a little bit of extra work here
adam@2013	1272 // in anticipation of a possible word-aligned access to the address we'll
adam@2013	1273 // return.
adam@2013	1274
adamc@136	1275 void *result;
adamc@136	1276
adam@1782	1277 if (ctx->amInitializing) {
adam@2017	1278 int error = posix_memalign(&result, sizeof(void *), len);
adam@2013	1279
adam@2013	1280 if (!error)
adam@1782	1281 return result;
adam@1782	1282 else
adam@2013	1283 uw_error(ctx, FATAL, "uw_malloc: posix_memalign() returns %d", error);
adam@1782	1284 } else {
adam@2013	1285 align_heap(ctx);
adam@2013	1286
adam@1782	1287 uw_check_heap(ctx, len);
adam@1782	1288
adam@1782	1289 result = ctx->heap.front;
adam@1782	1290 ctx->heap.front += len;
adam@1782	1291 return result;
adam@1782	1292 }
adamc@117	1293 }
adamc@117	1294
adamc@323	1295 void uw_begin_region(uw_context ctx) {
adam@2013	1296 align_heap(ctx);
adam@2013	1297
adamc@666	1298 regions r = (regions ) ctx->heap.front;
adamc@323	1299
adamc@323	1300 uw_check_heap(ctx, sizeof(regions));
adamc@323	1301
adamc@666	1302 ctx->heap.front += sizeof(regions);
adamc@323	1303
adamc@323	1304 r->next = ctx->regions;
adamc@323	1305 ctx->regions = r;
adamc@323	1306 }
adamc@323	1307
adamc@323	1308 void uw_end_region(uw_context ctx) {
adamc@323	1309 regions *r = ctx->regions;
adamc@323	1310
adamc@323	1311 if (r == NULL)
adamc@323	1312 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1313
adamc@666	1314 ctx->heap.front = (char *) r;
adamc@323	1315 ctx->regions = r->next;
adamc@323	1316 }
adamc@323	1317
adamc@324	1318 void uw_memstats(uw_context ctx) {
adam@1369	1319 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1320 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1321 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1322 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1323 }
adamc@324	1324
adam@1915	1325 int uw_pagelen(uw_context ctx) {
adam@1915	1326 return ctx->page.front - ctx->page.start;
adam@1915	1327 }
adam@1915	1328
adamc@311	1329 int uw_send(uw_context ctx, int sock) {
adam@1949	1330 size_t target_length = (ctx->outHeaders.front - ctx->outHeaders.start) + 2 + (ctx->page.front - ctx->page.start);
adam@1949	1331
adam@1949	1332 if (ctx->output_buffer_size < target_length) {
adam@1949	1333 do {
adam@1949	1334 ctx->output_buffer_size *= 2;
adam@1949	1335 } while (ctx->output_buffer_size < target_length);
adam@1949	1336 ctx->output_buffer = realloc(ctx->output_buffer, ctx->output_buffer_size);
adam@1949	1337 }
adam@1949	1338
adam@1949	1339 memcpy(ctx->output_buffer, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adam@1949	1340 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start), "\r\n", 2);
adam@1949	1341 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start) + 2, ctx->page.start, ctx->page.front - ctx->page.start);
adam@1949	1342
adam@1949	1343 return uw_really_send(sock, ctx->output_buffer, target_length);
adamc@462	1344 }
adamc@462	1345
adamc@856	1346 int uw_print(uw_context ctx, int fd) {
adamc@856	1347 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1348
adamc@856	1349 if (n < 0)
adamc@856	1350 return n;
adamc@856	1351
adamc@856	1352 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1353
adamc@856	1354 if (n < 0)
adamc@856	1355 return n;
adamc@856	1356
adamc@856	1357 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1358 }
adamc@856	1359
adamc@860	1360 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1361 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1362
adamc@860	1363 if (n < 0)
adamc@860	1364 return n;
adamc@860	1365
adamc@860	1366 n = output(data, "\r\n", 2);
adamc@860	1367
adamc@860	1368 if (n < 0)
adamc@860	1369 return n;
adamc@860	1370
adamc@860	1371 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1372 }
adamc@860	1373
adamc@462	1374 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1375 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1376 }
adamc@462	1377
adamc@462	1378 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1379 int len = strlen(s);
adamc@462	1380
adamc@462	1381 uw_check_headers(ctx, len + 1);
adamc@666	1382 strcpy(ctx->outHeaders.front, s);
adamc@666	1383 ctx->outHeaders.front += len;
adamc@562	1384 }
adamc@562	1385
adam@1934	1386 int uw_has_contentLength(uw_context ctx) {
adam@1934	1387 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934	1388 }
adam@1934	1389
adamc@1110	1390 void uw_clear_headers(uw_context ctx) {
adam@1369	1391 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1392 }
adamc@1110	1393
adam@1932	1394 void uw_Basis_clear_page(uw_context ctx) {
adam@1932	1395 uw_buffer_reset(&ctx->page);
adam@1932	1396 }
adam@1932	1397
adamc@562	1398 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1399 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1400 }
adamc@562	1401
adamc@562	1402 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1403 int len = strlen(s);
adamc@562	1404
adamc@562	1405 uw_check_script(ctx, len + 1);
adamc@666	1406 strcpy(ctx->script.front, s);
adamc@666	1407 ctx->script.front += len;
adamc@562	1408 }
adamc@562	1409
adam@1446	1410 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1411 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1412 uw_write_script(ctx, "sig=\"");
adam@1671	1413 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1414 uw_write_script(ctx, "\";");
adam@1671	1415 }
adam@1671	1416
adam@1446	1417 return ctx->script.start;
adam@1446	1418 }
adam@1446	1419
adamc@695	1420 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1421 if (s[0] == 0)
adamc@695	1422 return "";
adamc@695	1423 else {
adamc@695	1424 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1425 sprintf(r, " onload='%s'", s);
adamc@695	1426 return r;
adamc@695	1427 }
adamc@695	1428 }
adamc@695	1429
adamc@1042	1430 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1431 if (ctx->script_header[0] == 0)
adamc@1042	1432 return "";
adamc@1042	1433 else {
vshabanoff@1763	1434 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763	1435 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042	1436 return r;
adamc@1042	1437 }
adamc@1042	1438 }
adamc@1042	1439
adamc@694	1440 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1441 if (ctx->client == NULL) {
adamc@736	1442 if (ctx->needs_sig) {
adamc@1094	1443 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1444 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1445 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1446 return r;
adamc@736	1447 }
adamc@736	1448 else
adamc@736	1449 return "";
adamc@736	1450 } else {
adamc@1094	1451 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1452 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1453 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1454 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1455 (ctx->isPost ? "true" : "false"),
adamc@682	1456 ctx->client->id,
adamc@682	1457 ctx->client->pass,
adamc@1094	1458 ctx->app->url_prefix,
adamc@1094	1459 ctx->app->timeout,
adamc@736	1460 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1461 sig,
adamc@736	1462 ctx->needs_sig ? "\";" : "");
adamc@679	1463 return r;
adamc@668	1464 }
adamc@667	1465 }
adamc@667	1466
adamc@574	1467 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1468 char r, s2;
adamc@574	1469
adam@1446	1470 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1471
adamc@666	1472 r = s2 = ctx->heap.front;
adamc@574	1473 *s2++ = '"';
adamc@574	1474
adamc@574	1475 for (; *s; s++) {
adam@1286	1476 unsigned char c = *s;
adamc@574	1477
adamc@574	1478 switch (c) {
adamc@574	1479 case '"':
adamc@574	1480 strcpy(s2, "\\\"");
adamc@574	1481 s2 += 2;
adamc@574	1482 break;
adamc@1027	1483 case '\'':
adamc@1027	1484 strcpy(s2, "\\047");
adamc@1027	1485 s2 += 4;
adamc@1027	1486 break;
adamc@574	1487 case '\\':
adamc@574	1488 strcpy(s2, "\\\\");
adamc@574	1489 s2 += 2;
adamc@574	1490 break;
adam@1457	1491 case '<':
adam@1457	1492 strcpy(s2, "\\074");
adam@1457	1493 s2 += 4;
adam@1457	1494 break;
adamc@574	1495 default:
adam@1286	1496 if (isprint((int)c) \|\| c >= 128)
adamc@574	1497 *s2++ = c;
adamc@574	1498 else {
adam@1429	1499 sprintf(s2, "\\%03o", c);
adamc@574	1500 s2 += 4;
adamc@574	1501 }
adamc@574	1502 }
adamc@574	1503 }
adamc@574	1504
adamc@574	1505 strcpy(s2, "\"");
adamc@910	1506 ctx->heap.front = s2 + 2;
adamc@574	1507 return r;
adamc@574	1508 }
adamc@574	1509
adam@1286	1510 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1511 unsigned char c = c1;
adamc@1025	1512 char r, s2;
adamc@1025	1513
adam@1446	1514 uw_check_heap(ctx, 7);
adamc@1025	1515
adamc@1025	1516 r = s2 = ctx->heap.front;
adamc@1025	1517 *s2++ = '"';
adamc@1025	1518
adamc@1025	1519 switch (c) {
adamc@1025	1520 case '"':
adamc@1025	1521 strcpy(s2, "\\\"");
adamc@1025	1522 s2 += 2;
adamc@1025	1523 break;
adamc@1027	1524 case '\'':
adamc@1027	1525 strcpy(s2, "\\047");
adamc@1027	1526 s2 += 4;
adamc@1027	1527 break;
adamc@1025	1528 case '\\':
adamc@1025	1529 strcpy(s2, "\\\\");
adamc@1025	1530 s2 += 2;
adamc@1025	1531 break;
adam@1457	1532 case '<':
adam@1457	1533 strcpy(s2, "\\074");
adam@1457	1534 s2 += 4;
adam@1457	1535 break;
adamc@1025	1536 default:
adam@1286	1537 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1538 *s2++ = c;
adamc@1025	1539 else {
adam@1429	1540 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1541 s2 += 4;
adamc@1025	1542 }
adamc@1025	1543 }
adamc@1025	1544
adamc@1025	1545 strcpy(s2, "\"");
adamc@1025	1546 ctx->heap.front = s2 + 2;
adamc@1025	1547 return r;
adamc@1025	1548 }
adamc@1025	1549
adamc@574	1550 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1551 char r, s2;
adamc@574	1552
adam@1446	1553 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1554
adamc@666	1555 r = s2 = ctx->script.front;
adamc@574	1556 *s2++ = '"';
adamc@574	1557
adamc@574	1558 for (; *s; s++) {
adam@1286	1559 unsigned char c = *s;
adamc@574	1560
adamc@574	1561 switch (c) {
adamc@577	1562 case '\'':
adamc@1027	1563 strcpy(s2, "\\");
adamc@574	1564 s2 += 2;
adamc@574	1565 break;
adamc@574	1566 case '\\':
adamc@574	1567 strcpy(s2, "\\\\");
adamc@574	1568 s2 += 2;
adamc@574	1569 break;
adam@1457	1570 case '<':
adam@1457	1571 strcpy(s2, "\\074");
adam@1457	1572 s2 += 4;
adam@1457	1573 break;
adamc@574	1574 default:
adam@1286	1575 if (isprint((int)c) \|\| c >= 128)
adamc@574	1576 *s2++ = c;
adamc@574	1577 else {
adam@1429	1578 sprintf(s2, "\\%03o", c);
adamc@574	1579 s2 += 4;
adamc@574	1580 }
adamc@574	1581 }
adamc@574	1582 }
adamc@574	1583
adamc@574	1584 strcpy(s2, "\"");
adamc@666	1585 ctx->script.front = s2 + 1;
adamc@574	1586 return r;
adamc@574	1587 }
adamc@574	1588
adamc@682	1589 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1590 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1591 return "null";
adamc@682	1592 else {
adamc@682	1593 int len;
adamc@682	1594 char *r;
adamc@682	1595
adamc@682	1596 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1597 r = ctx->heap.front;
adamc@682	1598 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1599 ctx->heap.front += len+1;
adamc@682	1600 return r;
adamc@682	1601 }
adamc@682	1602 }
adamc@682	1603
adam@1446	1604 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1605 int len;
adamc@577	1606 size_t s_len = strlen(s);
adamc@562	1607
grrwlf@1998	1608 if(ctx->id < 0)
grrwlf@1998	1609 uw_error(ctx, FATAL, "Attempt to create client source using inappropriate context");
grrwlf@1998	1610
adam@1446	1611 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1612 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1613 ctx->script.front += len;
adamc@666	1614 strcpy(ctx->script.front, s);
adamc@666	1615 ctx->script.front += s_len;
adamc@970	1616 strcpy(ctx->script.front, "));");
adamc@972	1617 ctx->script.front += 3;
adamc@562	1618
adam@1446	1619 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1620 return r;
adam@1446	1621 }
adam@1446	1622
adam@1446	1623 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1624 int len;
adamc@577	1625 size_t s_len = strlen(s);
adamc@577	1626
adam@1446	1627 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1628 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1629 ctx->script.front += len;
adamc@666	1630 strcpy(ctx->script.front, s);
adamc@666	1631 ctx->script.front += s_len;
adamc@970	1632 strcpy(ctx->script.front, "));");
adamc@972	1633 ctx->script.front += 3;
adamc@577	1634
adamc@577	1635 return uw_unit_v;
adamc@577	1636 }
adamc@577	1637
adamc@311	1638 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1639 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1640 }
adamc@117	1641
adamc@311	1642 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1643 *(ctx->page.front)++ = c;
adam@1413	1644 *ctx->page.front = 0;
adamc@117	1645 }
adamc@117	1646
adamc@311	1647 void uw_writec(uw_context ctx, char c) {
adam@1413	1648 uw_check(ctx, 2);
adamc@311	1649 uw_writec_unsafe(ctx, c);
adamc@117	1650 }
adamc@117	1651
adamc@311	1652 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1653 int len = strlen(s);
adamc@666	1654 memcpy(ctx->page.front, s, len);
adamc@666	1655 ctx->page.front += len;
adamc@117	1656 }
adamc@117	1657
adamc@311	1658 void uw_write(uw_context ctx, const char* s) {
adamc@311	1659 uw_check(ctx, strlen(s) + 1);
adamc@311	1660 uw_write_unsafe(ctx, s);
adamc@666	1661 *ctx->page.front = 0;
adamc@102	1662 }
adamc@106	1663
adamc@311	1664 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1665 char *result;
adamc@136	1666 int len;
adamc@311	1667 uw_check_heap(ctx, INTS_MAX);
adamc@666	1668 result = ctx->heap.front;
adamc@276	1669 sprintf(result, "%lld%n", n, &len);
adamc@666	1670 ctx->heap.front += len+1;
adamc@136	1671 return result;
adamc@106	1672 }
adamc@106	1673
adamc@311	1674 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1675 char *result;
adamc@136	1676 int len;
adamc@311	1677 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1678 result = ctx->heap.front;
adam@1920	1679 sprintf(result, "%.16g%n", n, &len);
adamc@666	1680 ctx->heap.front += len+1;
adamc@136	1681 return result;
adamc@106	1682 }
adamc@106	1683
adamc@311	1684 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1685 int len = strlen(s);
adamc@136	1686 char result, p;
adamc@311	1687 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1688
adamc@666	1689 result = p = ctx->heap.front;
adamc@136	1690
adamc@136	1691 for (; *s; s++) {
adamc@1054	1692 unsigned char c = *s;
adamc@136	1693
adamc@136	1694 if (c == '"') {
adamc@136	1695 strcpy(p, """);
adamc@136	1696 p += 6;
adamc@136	1697 } else if (c == '&') {
adamc@136	1698 strcpy(p, "&");
adamc@136	1699 p += 5;
adamc@136	1700 }
adamc@1059	1701 else
adamc@136	1702 *p++ = c;
adamc@136	1703 }
adamc@136	1704
adamc@137	1705 *p++ = 0;
adamc@666	1706 ctx->heap.front = p;
adamc@136	1707 return result;
adamc@106	1708 }
adamc@106	1709
adamc@1011	1710 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1711 char result, p;
adamc@1011	1712 uw_check_heap(ctx, 7);
adamc@1011	1713
adamc@1011	1714 result = p = ctx->heap.front;
adamc@1011	1715
adamc@1011	1716 if (c == '"') {
adamc@1011	1717 strcpy(p, """);
adamc@1011	1718 p += 6;
adamc@1011	1719 } else if (c == '&') {
adamc@1011	1720 strcpy(p, "&");
adamc@1011	1721 p += 5;
adamc@1011	1722 }
adamc@1059	1723 else
adamc@1011	1724 *p++ = c;
adamc@1011	1725
adamc@1011	1726 *p++ = 0;
adamc@1011	1727 ctx->heap.front = p;
adamc@1011	1728 return result;
adamc@1011	1729 }
adamc@1011	1730
adamc@721	1731 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1732 return s;
adamc@721	1733 }
adamc@721	1734
adamc@311	1735 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1736 int len;
adamc@117	1737
adamc@666	1738 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1739 ctx->page.front += len;
adamc@106	1740 }
adamc@106	1741
adamc@428	1742 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1743 uw_check(ctx, INTS_MAX);
adamc@311	1744 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1745
adamc@428	1746 return uw_unit_v;
adamc@106	1747 }
adamc@106	1748
adamc@428	1749 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1750 int len;
adamc@117	1751
adamc@311	1752 uw_check(ctx, FLOATS_MAX);
adamc@666	1753 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1754 ctx->page.front += len;
adamc@428	1755
adamc@428	1756 return uw_unit_v;
adamc@117	1757 }
adamc@117	1758
adamc@428	1759 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1760 uw_check(ctx, strlen(s) * 6);
adamc@117	1761
adamc@106	1762 for (; *s; s++) {
adamc@1054	1763 unsigned char c = *s;
adamc@106	1764
adamc@106	1765 if (c == '"')
adamc@311	1766 uw_write_unsafe(ctx, """);
adamc@136	1767 else if (c == '&')
adamc@311	1768 uw_write_unsafe(ctx, "&");
adamc@1059	1769 else
adamc@311	1770 uw_writec_unsafe(ctx, c);
adamc@106	1771 }
adamc@428	1772
adamc@428	1773 return uw_unit_v;
adamc@106	1774 }
adamc@120	1775
adamc@1011	1776 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1777 uw_check(ctx, 6);
adamc@1011	1778
adamc@1011	1779 if (c == '"')
adamc@1011	1780 uw_write_unsafe(ctx, """);
adamc@1011	1781 else if (c == '&')
adamc@1011	1782 uw_write_unsafe(ctx, "&");
adamc@1059	1783 else
adamc@1011	1784 uw_writec_unsafe(ctx, c);
adamc@1011	1785
adamc@1011	1786 return uw_unit_v;
adamc@1011	1787 }
adamc@1011	1788
adamc@120	1789
adamc@311	1790 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1791 int len;
adamc@137	1792 char *r;
adamc@137	1793
adamc@311	1794 uw_check_heap(ctx, INTS_MAX);
adamc@666	1795 r = ctx->heap.front;
adamc@276	1796 sprintf(r, "%lld%n", n, &len);
adamc@666	1797 ctx->heap.front += len+1;
adamc@137	1798 return r;
adamc@120	1799 }
adamc@120	1800
adamc@682	1801 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1802 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1803 return "";
adamc@682	1804 else {
adamc@682	1805 int len;
adamc@682	1806 char *r;
adamc@679	1807
adamc@682	1808 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1809 r = ctx->heap.front;
adamc@682	1810 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1811 ctx->heap.front += len+1;
adamc@682	1812 return r;
adamc@682	1813 }
adamc@679	1814 }
adamc@679	1815
adamc@311	1816 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1817 int len;
adamc@137	1818 char *r;
adamc@137	1819
adamc@311	1820 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1821 r = ctx->heap.front;
adamc@137	1822 sprintf(r, "%g%n", n, &len);
adamc@666	1823 ctx->heap.front += len+1;
adamc@137	1824 return r;
adamc@120	1825 }
adamc@120	1826
adamc@311	1827 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1828 char r, p;
adamc@137	1829
adamc@925	1830 if (s[0] == '\0')
adamc@925	1831 return "_";
adamc@925	1832
adamc@925	1833 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1834
adamc@925	1835 r = p = ctx->heap.front;
adamc@925	1836 if (s[0] == '_')
adamc@925	1837 *p++ = '_';
adamc@925	1838
adamc@925	1839 for (; *s; s++) {
adamc@1087	1840 unsigned char c = *s;
adamc@137	1841
adamc@137	1842 if (c == ' ')
adamc@137	1843 *p++ = '+';
adamc@137	1844 else if (isalnum(c))
adamc@137	1845 *p++ = c;
adamc@137	1846 else {
adamc@1259	1847 sprintf(p, ".%02X", c);
adamc@137	1848 p += 3;
adamc@137	1849 }
adamc@137	1850 }
adamc@137	1851
adamc@137	1852 *p++ = 0;
adamc@666	1853 ctx->heap.front = p;
adamc@137	1854 return r;
adamc@120	1855 }
adamc@120	1856
adamc@311	1857 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1858 if (b == uw_Basis_False)
adamc@186	1859 return "0";
adamc@186	1860 else
adamc@186	1861 return "1";
adamc@186	1862 }
adamc@186	1863
adam@1620	1864 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1865 char *r;
adam@1620	1866 int len;
adam@1620	1867 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1868 r = ctx->heap.front;
adam@1620	1869 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1870 ctx->heap.front += len+1;
adam@1620	1871 return r;
adam@1620	1872 }
adam@1620	1873
adamc@311	1874 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1875 int len;
adamc@120	1876
adamc@666	1877 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1878 ctx->page.front += len;
adamc@120	1879 }
adamc@120	1880
adamc@428	1881 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1882 uw_check(ctx, INTS_MAX);
adamc@311	1883 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1884
adamc@428	1885 return uw_unit_v;
adamc@120	1886 }
adamc@120	1887
adamc@682	1888 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1889 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1890 int len;
phurst@1981	1891
adamc@682	1892 uw_check(ctx, INTS_MAX + 1);
adamc@682	1893 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1894 ctx->page.front += len;
adamc@682	1895 }
phurst@1981	1896
adamc@679	1897 return uw_unit_v;
adamc@679	1898 }
adamc@679	1899
adamc@428	1900 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1901 int len;
adamc@120	1902
adamc@311	1903 uw_check(ctx, FLOATS_MAX);
adamc@666	1904 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1905 ctx->page.front += len;
adamc@428	1906
adamc@428	1907 return uw_unit_v;
adamc@120	1908 }
adamc@120	1909
adamc@488	1910 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1911 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1912 }
adamc@488	1913
adam@1404	1914 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1915 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1916 }
adam@1404	1917
adamc@428	1918 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1919 if (s[0] == '\0') {
adamc@925	1920 uw_check(ctx, 1);
adamc@925	1921 uw_writec_unsafe(ctx, '_');
adamc@925	1922 return uw_unit_v;
adamc@925	1923 }
adamc@925	1924
adamc@925	1925 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1926
adamc@925	1927 if (s[0] == '_')
adamc@925	1928 uw_writec_unsafe(ctx, '_');
adamc@120	1929
adamc@120	1930 for (; *s; s++) {
adamc@1087	1931 unsigned char c = *s;
adamc@120	1932
adamc@120	1933 if (c == ' ')
adamc@311	1934 uw_writec_unsafe(ctx, '+');
adamc@120	1935 else if (isalnum(c))
adamc@311	1936 uw_writec_unsafe(ctx, c);
adamc@120	1937 else {
adamc@1259	1938 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1939 ctx->page.front += 3;
adamc@120	1940 }
adamc@120	1941 }
adamc@428	1942
adamc@428	1943 return uw_unit_v;
adamc@120	1944 }
adamc@120	1945
adamc@428	1946 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1947 if (b == uw_Basis_False)
adamc@311	1948 uw_writec(ctx, '0');
adamc@186	1949 else
adamc@311	1950 uw_writec(ctx, '1');
adamc@428	1951
adamc@428	1952 return uw_unit_v;
adamc@186	1953 }
adamc@186	1954
adam@1620	1955 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	1956 int len;
phurst@1981	1957
adam@1620	1958 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	1959 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1960 ctx->page.front += len;
phurst@1981	1961
adam@1620	1962 return uw_unit_v;
adam@1620	1963 }
adam@1620	1964
adamc@120	1965
adamc@311	1966 static char uw_unurlify_advance(char s) {
adamc@144	1967 char *new_s = strchr(s, '/');
adamc@120	1968
adamc@120	1969 if (new_s)
adamc@120	1970 *new_s++ = 0;
adamc@120	1971 else
adamc@144	1972 new_s = strchr(s, 0);
adamc@144	1973
adamc@144	1974 return new_s;
adamc@144	1975 }
adamc@144	1976
adamc@311	1977 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1978 char new_s = uw_unurlify_advance(s);
adamc@311	1979 uw_Basis_int r;
adamc@120	1980
adamc@276	1981 r = atoll(*s);
adamc@120	1982 *s = new_s;
adamc@120	1983 return r;
adamc@120	1984 }
adamc@120	1985
adamc@311	1986 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1987 char new_s = uw_unurlify_advance(s);
adamc@311	1988 uw_Basis_float r;
adamc@120	1989
adamc@120	1990 r = atof(*s);
adamc@120	1991 *s = new_s;
adamc@120	1992 return r;
adamc@120	1993 }
adamc@120	1994
adamc@488	1995 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	1996 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	1997 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	1998 return r;
adamc@488	1999 }
adamc@488	2000
adamc@1023	2001 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	2002 char s1, s2 = s;
adamc@144	2003 int n;
adamc@136	2004
adamc@1023	2005 if (!fromClient) {
adamc@1023	2006 if (*s2 == '_')
adamc@1023	2007 ++s2;
adamc@1259	2008 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	2009 s2 += 3;
adamc@1023	2010 }
adamc@925	2011
adamc@927	2012 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	2013 unsigned char c = *s2;
adamc@136	2014
adamc@136	2015 switch (c) {
adamc@136	2016 case '+':
adamc@136	2017 *s1 = ' ';
adamc@136	2018 break;
adamc@136	2019 case '%':
adamc@169	2020 if (s2[1] == 0)
adamc@311	2021 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	2022 if (s2[2] == 0)
adamc@311	2023 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	2024 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2025 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	2026 *s1 = n;
adamc@136	2027 s2 += 2;
adamc@136	2028 break;
adamc@1259	2029 case '.':
adamc@1259	2030 if (!fromClient) {
adamc@1259	2031 if (s2[1] == 0)
adamc@1259	2032 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	2033 if (s2[2] == 0)
adamc@1259	2034 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	2035 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2036 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	2037 *s1 = n;
adamc@1259	2038 s2 += 2;
adamc@1259	2039 break;
adamc@1259	2040 }
adamc@136	2041 default:
adamc@136	2042 *s1 = c;
adamc@136	2043 }
adamc@136	2044 }
adamc@136	2045 *s1++ = 0;
adamc@144	2046 return s1;
adamc@144	2047 }
adamc@144	2048
adamc@311	2049 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	2050 char new_s = uw_unurlify_advance(s);
adamc@311	2051 uw_Basis_bool r;
phurst@1981	2052
adamc@186	2053 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2054 r = uw_Basis_False;
adamc@186	2055 else
adamc@311	2056 r = uw_Basis_True;
adamc@186	2057
adamc@186	2058 *s = new_s;
adamc@186	2059 return r;
adamc@186	2060 }
adamc@186	2061
adamc@311	2062 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2063 char new_s = uw_unurlify_advance(s);
adamc@1134	2064 char *r;
adamc@1134	2065 int len;
adamc@144	2066
adamc@200	2067 len = strlen(*s);
adamc@311	2068 uw_check_heap(ctx, len + 1);
adamc@144	2069
adamc@666	2070 r = ctx->heap.front;
adamc@1023	2071 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2072 *s = new_s;
adamc@1023	2073 return r;
adamc@1023	2074 }
adamc@1023	2075
adamc@1109	2076 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2077 s = uw_unurlify_advance(s);
adamc@1109	2078 return uw_unit_v;
adamc@1109	2079 }
adamc@1109	2080
adamc@1023	2081 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2082 char new_s = uw_unurlify_advance(s);
adamc@1134	2083 char *r;
adamc@1134	2084 int len;
adamc@1023	2085
adamc@1023	2086 len = strlen(*s);
adamc@1023	2087 uw_check_heap(ctx, len + 1);
adamc@1023	2088
adamc@1023	2089 r = ctx->heap.front;
adamc@1023	2090 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2091 *s = new_s;
adamc@136	2092 return r;
adamc@120	2093 }
adamc@135	2094
adamc@135	2095
adamc@311	2096 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2097 int len;
adamc@286	2098 char *r;
adamc@286	2099
adamc@311	2100 uw_check_heap(ctx, INTS_MAX);
adamc@666	2101 r = ctx->heap.front;
adamc@286	2102 sprintf(r, "%lld%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_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2108 int len;
adamc@286	2109
adamc@311	2110 uw_check(ctx, INTS_MAX);
adamc@666	2111 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2112 ctx->page.front += len;
phurst@1981	2113
adamc@428	2114 return uw_unit_v;
adamc@286	2115 }
adamc@286	2116
adam@1358	2117 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2118 unsigned int n = ch;
adam@1358	2119 int len;
adam@1358	2120 char *r;
adam@1358	2121
adam@1358	2122 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2123 r = ctx->heap.front;
adam@1358	2124 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2125 ctx->heap.front += len+1;
adam@1358	2126 return r;
adam@1358	2127 }
adam@1358	2128
adam@1358	2129 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2130 unsigned int n = ch;
adam@1358	2131 int len;
adam@1358	2132
adam@1358	2133 uw_check(ctx, INTS_MAX+3);
adam@1358	2134 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2135 ctx->page.front += len;
adam@1358	2136 return uw_unit_v;
adam@1358	2137 }
adam@1358	2138
adamc@311	2139 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2140 int len;
adamc@286	2141 char *r;
adamc@286	2142
adamc@311	2143 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2144 r = ctx->heap.front;
adamc@286	2145 sprintf(r, "%g%n", n, &len);
adamc@666	2146 ctx->heap.front += len+1;
adamc@286	2147 return r;
adamc@286	2148 }
adamc@286	2149
adamc@428	2150 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2151 int len;
adamc@286	2152
adamc@311	2153 uw_check(ctx, FLOATS_MAX);
adamc@666	2154 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2155 ctx->page.front += len;
adamc@428	2156
adamc@428	2157 return uw_unit_v;
adamc@286	2158 }
adamc@286	2159
adam@1365	2160 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2161 int len;
adam@1360	2162 char *r;
adam@1360	2163
adam@1360	2164 uw_check_heap(ctx, INTS_MAX);
adam@1360	2165 r = ctx->heap.front;
adamc@1377	2166 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2167 ctx->heap.front += len+1;
adam@1360	2168 return r;
adam@1360	2169 }
adam@1360	2170
adam@1365	2171 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2172 int len;
adam@1360	2173
adam@1360	2174 uw_check(ctx, INTS_MAX);
adam@1360	2175 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2176 ctx->page.front += len;
phurst@1981	2177
adam@1360	2178 return uw_unit_v;
adam@1360	2179 }
adam@1360	2180
adam@1444	2181 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2182 char r, s2;
adamc@137	2183
adamc@311	2184 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2185
adamc@666	2186 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2187 unsigned char c = *s;
adamc@137	2188
adamc@137	2189 switch (c) {
adamc@137	2190 case '<':
adamc@137	2191 strcpy(s2, "<");
adamc@137	2192 s2 += 4;
adamc@137	2193 break;
adamc@137	2194 case '&':
adamc@137	2195 strcpy(s2, "&");
adamc@137	2196 s2 += 5;
adamc@137	2197 break;
adamc@137	2198 default:
adamc@1059	2199 *s2++ = c;
adamc@137	2200 }
adamc@137	2201 }
adamc@137	2202
adamc@137	2203 *s2++ = 0;
adamc@666	2204 ctx->heap.front = s2;
adamc@137	2205 return r;
adamc@135	2206 }
adamc@135	2207
adamc@428	2208 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2209 uw_check(ctx, strlen(s) * 6);
adamc@135	2210
adamc@135	2211 for (; *s; s++) {
adamc@1054	2212 unsigned char c = *s;
adamc@135	2213
adamc@135	2214 switch (c) {
adamc@135	2215 case '<':
adamc@311	2216 uw_write_unsafe(ctx, "<");
adamc@135	2217 break;
adamc@135	2218 case '&':
adamc@311	2219 uw_write_unsafe(ctx, "&");
adamc@135	2220 break;
adamc@135	2221 default:
adamc@1059	2222 uw_writec_unsafe(ctx, c);
adamc@135	2223 }
adamc@135	2224 }
adamc@428	2225
adamc@428	2226 return uw_unit_v;
adamc@135	2227 }
adamc@180	2228
adamc@311	2229 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2230 if (b == uw_Basis_False)
adamc@286	2231 return "False";
adamc@286	2232 else
adamc@286	2233 return "True";
adamc@286	2234 }
adamc@286	2235
adamc@428	2236 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2237 if (b == uw_Basis_False) {
adamc@311	2238 uw_check(ctx, 6);
adamc@666	2239 strcpy(ctx->page.front, "False");
adamc@666	2240 ctx->page.front += 5;
adamc@286	2241 } else {
adamc@311	2242 uw_check(ctx, 5);
adamc@666	2243 strcpy(ctx->page.front, "True");
adamc@666	2244 ctx->page.front += 4;
adamc@286	2245 }
adamc@428	2246
adamc@428	2247 return uw_unit_v;
adamc@286	2248 }
adamc@286	2249
adamc@436	2250 #define TIME_FMT "%x %X"
adamc@438	2251 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2252 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2253
adam@1629	2254 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2255
adamc@436	2256 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2257 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2258 }
adamc@436	2259
adamc@436	2260 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2261 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2262 }
adamc@436	2263
adam@1446	2264 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2265 int len;
adam@1446	2266 char *r;
adam@1446	2267
adam@1446	2268 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2269 r = ctx->heap.front;
adam@1446	2270 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2271 ctx->heap.front += len+1;
adam@1446	2272 return r;
adam@1446	2273 }
adam@1446	2274
adam@1446	2275 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2276 int len;
adam@1446	2277
adam@1446	2278 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2279 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2280 ctx->page.front += len;
phurst@1981	2281
adam@1446	2282 return uw_unit_v;
adam@1446	2283 }
adam@1446	2284
adamc@821	2285 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2286 while (n >= 0) {
adam@1388	2287 if (*s == 0)
adam@1388	2288 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2289
adam@1388	2290 if (n == 0)
adam@1388	2291 return *s;
adam@1388	2292
adam@1388	2293 --n;
adam@1388	2294 ++s;
adam@1388	2295 }
adam@1388	2296
adam@1388	2297 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2298 }
adamc@821	2299
adamc@821	2300 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2301 while (n >= 0) {
adam@1388	2302 if (*s == 0 \|\| n == 0)
adam@1388	2303 return s;
adam@1388	2304
adam@1388	2305 --n;
adam@1388	2306 ++s;
adam@1388	2307 }
adam@1388	2308
adam@1388	2309 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2310 }
adamc@821	2311
adamc@828	2312 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2313 return strlen(s);
adamc@828	2314 }
adamc@828	2315
adam@1388	2316 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2317 while (n > 0) {
adam@1388	2318 if (*s == 0)
adam@1388	2319 return uw_Basis_False;
adam@1388	2320
adam@1388	2321 --n;
adam@1388	2322 ++s;
adam@1388	2323 }
adam@1388	2324
adam@1388	2325 return uw_Basis_True;
adam@1388	2326 }
adam@1388	2327
adamc@829	2328 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2329 return strchr(s, ch);
adamc@829	2330 }
adamc@829	2331
adamc@831	2332 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2333 return strcspn(s, chs);
adamc@831	2334 }
adamc@831	2335
adamc@829	2336 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2337 uw_Basis_string r = strchr(s, ch);
adamc@829	2338 if (r == NULL)
adamc@829	2339 return NULL;
adamc@829	2340 else {
adamc@829	2341 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2342 *nr = r - s;
adamc@829	2343 return nr;
adamc@829	2344 }
adamc@829	2345 }
adamc@829	2346
adam@1390	2347 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2348 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2349 if (r == NULL)
adam@1390	2350 return NULL;
adam@1390	2351 else {
adam@1390	2352 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2353 *nr = r - haystack;
adam@1390	2354 return nr;
adam@1390	2355 }
adam@1390	2356 }
adam@1390	2357
adamc@311	2358 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2359 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2360 char *s;
adamc@180	2361
adamc@311	2362 uw_check_heap(ctx, len);
adamc@180	2363
adamc@666	2364 s = ctx->heap.front;
adamc@180	2365
adamc@180	2366 strcpy(s, s1);
adamc@180	2367 strcat(s, s2);
adamc@666	2368 ctx->heap.front += len;
adamc@180	2369
adamc@180	2370 return s;
adamc@180	2371 }
adamc@278	2372
adamc@829	2373 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2374 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2375
adamc@829	2376 if (start < 0)
adamc@829	2377 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2378 if (len < 0)
adamc@829	2379 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2380 if (start + len > full_len)
adamc@829	2381 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2382
adamc@829	2383 if (start + len == full_len)
adamc@829	2384 return &s[start];
adamc@829	2385 else {
adamc@829	2386 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2387 memcpy(r, s+start, len);
adamc@829	2388 r[len] = 0;
adamc@829	2389 return r;
adamc@829	2390 }
phurst@1981	2391
adamc@829	2392 }
adamc@829	2393
adamc@1023	2394 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2395 char *r;
adamc@1023	2396
adamc@1023	2397 uw_check_heap(ctx, 2);
adamc@1023	2398 r = ctx->heap.front;
adamc@1023	2399 r[0] = ch;
adamc@1023	2400 r[1] = 0;
adamc@1023	2401
adamc@1023	2402 ctx->heap.front += 2;
adamc@1023	2403
adamc@1023	2404 return r;
adamc@1023	2405 }
adamc@1023	2406
adamc@737	2407 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2408 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2409 char *s;
adamc@278	2410
adamc@311	2411 uw_check_heap(ctx, len);
adamc@278	2412
adamc@666	2413 s = ctx->heap.front;
adamc@278	2414
adamc@278	2415 strcpy(s, s1);
adamc@666	2416 ctx->heap.front += len;
adamc@278	2417
adamc@278	2418 return s;
adamc@278	2419 }
adamc@280	2420
adam@1295	2421 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2422 if (ctx->error_message[0]) {
adam@1295	2423 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2424 ctx->error_message[0] = 0;
adam@1295	2425 return s;
adam@1295	2426 } else
adam@1295	2427 return NULL;
adam@1295	2428 }
adam@1295	2429
adamc@737	2430 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2431 if (s1)
adamc@737	2432 return uw_strdup(ctx, s1);
adamc@493	2433 else
adamc@493	2434 return NULL;
adamc@493	2435 }
adamc@493	2436
adamc@742	2437 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2438 char *r = uw_malloc(ctx, len);
adamc@742	2439 memcpy(r, p, len);
adamc@742	2440 return r;
adamc@742	2441 }
adamc@280	2442
adamc@879	2443 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2444
adamc@311	2445 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2446 int len;
adamc@281	2447 char *r;
adamc@281	2448
adamc@311	2449 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2450 r = ctx->heap.front;
adamc@879	2451 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2452 ctx->heap.front += len+1;
adamc@281	2453 return r;
adamc@281	2454 }
adamc@281	2455
adamc@467	2456 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2457 if (n == NULL)
adamc@467	2458 return "NULL";
adamc@467	2459 else
adamc@467	2460 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2461 }
adamc@467	2462
adam@1920	2463 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879	2464
adamc@311	2465 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2466 int len;
adamc@281	2467 char *r;
adamc@281	2468
adamc@311	2469 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2470 r = ctx->heap.front;
adamc@879	2471 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2472 ctx->heap.front += len+1;
adamc@281	2473 return r;
adamc@281	2474 }
adamc@281	2475
adamc@467	2476 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2477 if (n == NULL)
adamc@467	2478 return "NULL";
adamc@467	2479 else
adamc@467	2480 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2481 }
adamc@467	2482
adam@1834	2483 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2484 char *uw_sqlsuffixString = "::text";
adamc@1011	2485 char *uw_sqlsuffixChar = "::char";
adamc@281	2486
adamc@311	2487 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2488 char r, s2;
adamc@280	2489
adamc@879	2490 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2491
adamc@666	2492 r = s2 = ctx->heap.front;
adamc@879	2493 if (uw_Estrings)
adamc@879	2494 *s2++ = 'E';
adamc@280	2495 *s2++ = '\'';
adamc@280	2496
adamc@280	2497 for (; *s; s++) {
adamc@280	2498 char c = *s;
adamc@280	2499
adamc@280	2500 switch (c) {
adamc@280	2501 case '\'':
adamc@885	2502 if (uw_Estrings)
adamc@885	2503 strcpy(s2, "\\'");
adamc@885	2504 else
adamc@885	2505 strcpy(s2, "''");
adamc@280	2506 s2 += 2;
adamc@280	2507 break;
adamc@280	2508 case '\\':
adamc@885	2509 if (uw_Estrings) {
adamc@885	2510 strcpy(s2, "\\\\");
adamc@885	2511 s2 += 2;
adamc@885	2512 } else
adamc@885	2513 *s2++ = '\\';
adamc@280	2514 break;
adamc@280	2515 default:
adamc@1150	2516 if (isprint((int)c))
adamc@280	2517 *s2++ = c;
adamc@879	2518 else if (uw_Estrings) {
adam@1857	2519 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2520 s2 += 4;
adamc@280	2521 }
adamc@879	2522 else
adam@1689	2523 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2524 }
adamc@280	2525 }
adamc@280	2526
adamc@879	2527 *s2++ = '\'';
adamc@879	2528 strcpy(s2, uw_sqlsuffixString);
adamc@879	2529 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2530 return r;
adamc@280	2531 }
adamc@281	2532
adamc@1011	2533 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2534 char r, s2;
adamc@1011	2535
adamc@1011	2536 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2537
adamc@1011	2538 r = s2 = ctx->heap.front;
adamc@1011	2539 if (uw_Estrings)
adamc@1011	2540 *s2++ = 'E';
adamc@1011	2541 *s2++ = '\'';
adamc@1011	2542
adamc@1011	2543 switch (c) {
adamc@1011	2544 case '\'':
adamc@1011	2545 if (uw_Estrings)
adamc@1011	2546 strcpy(s2, "\\'");
adamc@1011	2547 else
adamc@1011	2548 strcpy(s2, "''");
adamc@1011	2549 s2 += 2;
adamc@1011	2550 break;
adamc@1011	2551 case '\\':
adamc@1011	2552 if (uw_Estrings) {
adamc@1011	2553 strcpy(s2, "\\\\");
adamc@1011	2554 s2 += 2;
adamc@1011	2555 } else
adamc@1011	2556 *s2++ = '\\';
adamc@1011	2557 break;
adamc@1011	2558 default:
adamc@1150	2559 if (isprint((int)c))
adamc@1011	2560 *s2++ = c;
adamc@1011	2561 else if (uw_Estrings) {
adam@1857	2562 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2563 s2 += 4;
adamc@1011	2564 }
adamc@1011	2565 else
adamc@1011	2566 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2567 }
adamc@1011	2568
adamc@1011	2569 *s2++ = '\'';
adamc@1011	2570 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2571 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2572 return r;
adamc@1011	2573 }
adamc@1011	2574
adamc@879	2575 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2576
adam@1867	2577 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2578 char r, s2;
adamc@737	2579 size_t i;
adamc@737	2580
adam@1867	2581 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2582
adamc@737	2583 r = s2 = ctx->heap.front;
adamc@879	2584 if (uw_Estrings)
adamc@879	2585 *s2++ = 'E';
adam@1867	2586 else
adam@1867	2587 *s2++ = 'X';
adamc@737	2588 *s2++ = '\'';
adamc@737	2589
adamc@737	2590 for (i = 0; i < b.size; ++i) {
adam@1867	2591 unsigned char c = b.data[i];
adam@1867	2592
adam@1867	2593 if (uw_Estrings) {
adam@1867	2594 switch (c) {
adam@1867	2595 case '\'':
adamc@885	2596 strcpy(s2, "\\'");
adam@1867	2597 s2 += 2;
adam@1867	2598 break;
adam@1867	2599 case '\\':
adamc@885	2600 strcpy(s2, "\\\\\\\\");
adamc@885	2601 s2 += 4;
adam@1867	2602 break;
adam@1867	2603 default:
adam@1867	2604 if (isprint((int)c))
adam@1867	2605 *s2++ = c;
adam@1867	2606 else {
adam@1867	2607 sprintf(s2, "\\\\%03o", c);
adam@1867	2608 s2 += 5;
adam@1867	2609 }
adamc@737	2610 }
adam@1867	2611 } else {
adam@1867	2612 sprintf(s2, "%02X", c);
adam@1867	2613 s2 += 2;
adamc@737	2614 }
phurst@1981	2615 }
adamc@737	2616
adamc@879	2617 *s2++ = '\'';
adamc@879	2618 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2619 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2620 return r;
adamc@737	2621 }
adamc@737	2622
adamc@682	2623 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2624 int len;
adamc@682	2625 char *r;
adamc@682	2626 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2627
adamc@682	2628 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2629 r = ctx->heap.front;
adamc@879	2630 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2631 ctx->heap.front += len+1;
adamc@682	2632 return r;
adamc@682	2633 }
adamc@682	2634
adamc@682	2635 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2636 int len;
adamc@682	2637 char *r;
adamc@682	2638 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2639
adamc@682	2640 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2641 r = ctx->heap.front;
adamc@682	2642 sprintf(r, "%lld%n", combo, &len);
adamc@682	2643 ctx->heap.front += len+1;
adamc@682	2644 return r;
adamc@682	2645 }
adamc@682	2646
adamc@879	2647 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2648
adamc@682	2649 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2650 int len;
adamc@682	2651 char *r;
adamc@682	2652
adamc@682	2653 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2654 r = ctx->heap.front;
adamc@879	2655 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2656 ctx->heap.front += len+1;
adamc@682	2657 return r;
adamc@682	2658 }
adamc@682	2659
adamc@682	2660 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2661 int len;
adamc@682	2662 char *r;
adamc@682	2663
adamc@682	2664 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2665 r = ctx->heap.front;
adamc@682	2666 sprintf(r, "%u%n", cli, &len);
adamc@682	2667 ctx->heap.front += len+1;
adamc@682	2668 return r;
adamc@682	2669 }
adamc@682	2670
adamc@467	2671 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2672 if (s == NULL)
adamc@467	2673 return "NULL";
adamc@467	2674 else
adamc@467	2675 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2676 }
adamc@467	2677
adamc@311	2678 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2679 if (b == uw_Basis_False)
adamc@281	2680 return "FALSE";
adamc@281	2681 else
adamc@281	2682 return "TRUE";
adamc@281	2683 }
adamc@282	2684
adamc@467	2685 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2686 if (b == NULL)
adamc@467	2687 return "NULL";
adamc@467	2688 else
adamc@467	2689 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2690 }
adamc@467	2691
adamc@439	2692 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2693 size_t len;
adamc@682	2694 char r, s;
adam@1392	2695 struct tm stm = {};
adam@1392	2696 stm.tm_isdst = -1;
adamc@682	2697
adam@1365	2698 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2699 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2700 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2701 if (uw_sql_type_annotations) {
adam@1834	2702 if (t.microseconds) {
adam@1834	2703 r = uw_malloc(ctx, len + 21);
adam@1834	2704 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2705 } else {
adam@1834	2706 r = uw_malloc(ctx, len + 14);
adam@1834	2707 sprintf(r, "'%s'::timestamp", s);
adam@1834	2708 }
adam@1367	2709 } else {
adam@1834	2710 r = uw_malloc(ctx, len + 3);
adam@1834	2711 sprintf(r, "'%s'", s);
adam@1367	2712 }
adamc@682	2713 return r;
adamc@682	2714 } else
adamc@682	2715 return "<Invalid time>";
adamc@682	2716 }
adamc@682	2717
adamc@682	2718 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2719 size_t len;
adamc@439	2720 char *r;
adam@1392	2721 struct tm stm = {};
adam@1392	2722 stm.tm_isdst = -1;
adamc@439	2723
adam@1365	2724 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2725 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2726 r = ctx->heap.front;
adamc@439	2727 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2728 ctx->heap.front += len+1;
adamc@439	2729 return r;
adamc@439	2730 } else
adamc@439	2731 return "<Invalid time>";
adamc@439	2732 }
adamc@439	2733
adam@1364	2734 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2735 size_t len;
adam@1364	2736 char *r;
adam@1392	2737 struct tm stm = {};
adam@1392	2738 stm.tm_isdst = -1;
adam@1364	2739
adam@1365	2740 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2741 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2742 r = ctx->heap.front;
adam@1365	2743 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2744 ctx->heap.front += len;
adam@1365	2745 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2746 ctx->heap.front += 8;
adam@1364	2747 return r;
adam@1364	2748 } else
adam@1364	2749 return "<Invalid time>";
adam@1364	2750 }
adam@1364	2751
adamc@467	2752 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2753 if (t == NULL)
adamc@467	2754 return "NULL";
adamc@467	2755 else
adamc@467	2756 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2757 }
adamc@467	2758
adamc@311	2759 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2760 static uw_Basis_int true = 1;
adamc@311	2761 static uw_Basis_int false = 0;
adamc@282	2762
adamc@311	2763 if (b == uw_Basis_False)
adamc@282	2764 return (char *)&false;
adamc@282	2765 else
adamc@282	2766 return (char *)&true;
adamc@282	2767 }
adamc@284	2768
adamc@311	2769 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2770 int len;
adamc@284	2771 char *r;
adamc@284	2772
adamc@311	2773 uw_check_heap(ctx, INTS_MAX);
adamc@666	2774 r = ctx->heap.front;
adamc@284	2775 sprintf(r, "%lld%n", n, &len);
adamc@666	2776 ctx->heap.front += len+1;
adamc@284	2777 return r;
adamc@284	2778 }
adamc@285	2779
adamc@311	2780 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2781 int len;
adamc@285	2782 char *r;
adamc@285	2783
adamc@311	2784 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2785 r = ctx->heap.front;
adamc@285	2786 sprintf(r, "%g%n", n, &len);
adamc@666	2787 ctx->heap.front += len+1;
adamc@285	2788 return r;
adamc@285	2789 }
adamc@285	2790
adamc@821	2791 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2792 char *r = uw_malloc(ctx, 2);
adamc@821	2793 r[0] = ch;
adamc@821	2794 r[1] = 0;
adamc@821	2795 return r;
adamc@821	2796 }
adamc@821	2797
adamc@311	2798 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2799 if (b == uw_Basis_False)
adamc@285	2800 return "False";
adamc@285	2801 else
adamc@285	2802 return "True";
adamc@285	2803 }
adamc@288	2804
adam@1359	2805 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2806 size_t len;
adam@1352	2807 char *r;
adam@1392	2808 struct tm stm = {};
adam@1392	2809 stm.tm_isdst = -1;
adam@1352	2810
adam@1365	2811 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2812 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2813 r = ctx->heap.front;
adam@1352	2814 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2815 ctx->heap.front += len+1;
adam@1352	2816 return r;
adam@1352	2817 } else
adam@1352	2818 return "<Invalid time>";
adam@1352	2819 }
adam@1352	2820
adam@1629	2821 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2822 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2823 }
adam@1629	2824
adamc@311	2825 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2826 char *endptr;
adamc@311	2827 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2828
adamc@288	2829 if (s != '\0' && endptr == '\0') {
adamc@311	2830 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2831 *r = n;
adamc@288	2832 return r;
adamc@288	2833 } else
adamc@288	2834 return NULL;
adamc@288	2835 }
adamc@289	2836
adamc@311	2837 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2838 char *endptr;
adamc@311	2839 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2840
adamc@289	2841 if (s != '\0' && endptr == '\0') {
adamc@311	2842 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2843 *r = n;
adamc@289	2844 return r;
adamc@289	2845 } else
adamc@289	2846 return NULL;
adamc@289	2847 }
adamc@289	2848
adamc@821	2849 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2850 if (s[0] == 0) {
adamc@821	2851 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2852 r[0] = 0;
adamc@821	2853 return r;
adamc@821	2854 } else if (s[1] != 0)
adamc@821	2855 return NULL;
adamc@821	2856 else {
adamc@821	2857 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2858 r[0] = s[0];
adamc@821	2859 return r;
adamc@821	2860 }
adamc@821	2861 }
adamc@821	2862
adamc@311	2863 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2864 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2865 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2866
adamc@289	2867 if (!strcasecmp (s, "True"))
adamc@289	2868 return &true;
adamc@289	2869 else if (!strcasecmp (s, "False"))
adamc@289	2870 return &false;
adamc@289	2871 else
adamc@289	2872 return NULL;
adamc@289	2873 }
adamc@292	2874
adamc@436	2875 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2876 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2877 struct tm stm = {};
adam@1392	2878 stm.tm_isdst = -1;
adamc@436	2879
adamc@439	2880 if (dot) {
adamc@439	2881 *dot = 0;
adamc@439	2882 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2883 *dot = '.';
adamc@439	2884 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2885 r->seconds = mktime(&stm);
adam@1365	2886 r->microseconds = 0;
adamc@439	2887 return r;
adamc@439	2888 }
adamc@439	2889 else {
adamc@439	2890 *dot = '.';
adamc@439	2891 return NULL;
adamc@439	2892 }
adamc@436	2893 }
adamc@439	2894 else {
adamc@439	2895 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2896 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2897 r->seconds = mktime(&stm);
adam@1365	2898 r->microseconds = 0;
adamc@439	2899 return r;
adamc@439	2900 }
adamc@439	2901 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2902 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2903 r->seconds = mktime(&stm);
adam@1365	2904 r->microseconds = 0;
adamc@439	2905 return r;
adam@1632	2906 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2907 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2908 r->seconds = mktime(&stm);
adam@1632	2909 r->microseconds = 0;
adam@1632	2910 return r;
adamc@439	2911 }
adamc@439	2912 else
adamc@439	2913 return NULL;
adamc@439	2914 }
adamc@436	2915 }
adamc@436	2916
adam@1352	2917 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2918 char *end = strchr(s, 0);
adam@1374	2919 struct tm stm = {};
adam@1392	2920 stm.tm_isdst = -1;
adam@1352	2921
adam@1352	2922 if (strptime(s, fmt, &stm) == end) {
adam@1352	2923 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2924 r->seconds = mktime(&stm);
adam@1365	2925 r->microseconds = 0;
adam@1352	2926 return r;
adam@1352	2927 }
adam@1352	2928 else
adam@1352	2929 return NULL;
adam@1352	2930 }
adam@1352	2931
adamc@311	2932 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2933 char *endptr;
adamc@311	2934 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2935
adamc@292	2936 if (s != '\0' && endptr == '\0')
adamc@292	2937 return n;
adamc@292	2938 else
adam@1444	2939 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2940 }
adamc@293	2941
adamc@682	2942 #include <errno.h>
adamc@682	2943
adamc@678	2944 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2945 unsigned long long n;
adamc@682	2946
adamc@682	2947 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2948 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	2949 else {
adamc@682	2950 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2951 return ch;
adamc@682	2952 }
adamc@682	2953 }
adamc@682	2954
adamc@682	2955 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2956 char *endptr;
adamc@682	2957 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2958
adamc@678	2959 if (s != '\0' && endptr == '\0')
adamc@678	2960 return n;
adamc@678	2961 else
adam@1444	2962 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	2963 }
adamc@678	2964
adamc@311	2965 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2966 char *endptr;
adamc@311	2967 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2968
adamc@293	2969 if (s != '\0' && endptr == '\0')
adamc@293	2970 return n;
adamc@293	2971 else
adam@1444	2972 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2973 }
adamc@293	2974
adamc@821	2975 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2976 if (s[0] == 0)
adamc@821	2977 return 0;
adamc@821	2978 else if (s[1] != 0)
adam@1444	2979 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	2980 else
adamc@821	2981 return s[0];
adamc@821	2982 }
adamc@821	2983
adamc@311	2984 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2985 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2986 return uw_Basis_True;
adamc@296	2987 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2988 return uw_Basis_False;
adamc@293	2989 else
adam@1444	2990 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2991 }
adamc@436	2992
adam@1352	2993 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	2994 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	2995 struct tm stm = {};
adam@1392	2996 stm.tm_isdst = -1;
adam@1352	2997
adam@1352	2998 if (dot) {
adam@1352	2999 *dot = 0;
adam@1352	3000 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	3001 *dot = '.';
adam@1410	3002 char usec[] = "000000";
adam@1410	3003 int len = strlen(dot+1);
adam@1410	3004 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	3005 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	3006 return r;
adam@1352	3007 }
adam@1352	3008 else {
adam@1352	3009 *dot = '.';
adam@1444	3010 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3011 }
adam@1352	3012 }
adam@1352	3013 else {
adam@1352	3014 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3015 uw_Basis_time r = { mktime(&stm) };
adam@1365	3016 return r;
adam@1352	3017 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3018 uw_Basis_time r = { mktime(&stm) };
adam@1365	3019 return r;
adam@1352	3020 } else
adam@1444	3021 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3022 }
adam@1352	3023 }
adam@1352	3024
adamc@436	3025 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	3026 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	3027 struct tm stm = {};
adam@1392	3028 stm.tm_isdst = -1;
adamc@436	3029
adamc@438	3030 if (dot) {
adamc@438	3031 *dot = 0;
adamc@438	3032 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	3033 *dot = '.';
adam@1365	3034 {
adam@1365	3035 uw_Basis_time r = { mktime(&stm) };
adam@1365	3036 return r;
adam@1365	3037 }
adamc@438	3038 }
adamc@438	3039 else {
adamc@438	3040 *dot = '.';
adam@1444	3041 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3042 }
adamc@438	3043 }
adamc@438	3044 else {
adam@1365	3045 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3046 uw_Basis_time r = { mktime(&stm) };
adam@1365	3047 return r;
adam@1365	3048 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3049 uw_Basis_time r = { mktime(&stm) };
adam@1365	3050 return r;
adam@1632	3051 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3052 uw_Basis_time r = { mktime(&stm) };
adam@1632	3053 return r;
adam@1365	3054 } else
adam@1444	3055 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3056 }
adamc@436	3057 }
adamc@457	3058
adam@1352	3059 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3060 char *end = strchr(s, 0);
adamc@939	3061 struct tm stm = {};
adam@1392	3062 stm.tm_isdst = -1;
adamc@939	3063
adam@1365	3064 if (strptime(s, fmt, &stm) == end) {
adam@1365	3065 uw_Basis_time r = { mktime(&stm) };
adam@1365	3066 return r;
adam@1365	3067 } else
adam@1444	3068 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3069 }
adamc@939	3070
adamc@742	3071 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3072 char *r = ctx->heap.front;
adamc@742	3073 uw_Basis_blob b = {len, r};
adamc@742	3074
adamc@742	3075 uw_check_heap(ctx, len);
adamc@742	3076
adam@1992	3077 if (s[0] == '\\' && s[1] == 'x') {
adam@1992	3078 s += 2;
adam@1992	3079
adam@1992	3080 while (*s) {
adam@1992	3081 int n;
adam@1992	3082 sscanf(s, "%02x", &n);
adam@1992	3083 *r++ = n;
adam@1992	3084 s += 2;
adam@1992	3085 }
adam@1992	3086 } else {
adam@1992	3087 while (*s) {
adam@1992	3088 if (s[0] == '\\') {
adam@1992	3089 if (s[1] == '\\') {
adam@1992	3090 *r++ = '\\';
adam@1992	3091 s += 2;
adam@1992	3092 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adam@1992	3093 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adam@1992	3094 s += 4;
adam@1992	3095 }
adam@1992	3096 else {
adam@1992	3097 *r++ = '\\';
adam@1992	3098 ++s;
adam@1992	3099 }
adam@1992	3100 } else {
adam@1992	3101 *r++ = s[0];
adamc@742	3102 ++s;
adamc@742	3103 }
adamc@742	3104 }
adamc@742	3105 }
adamc@742	3106
adamc@742	3107 b.size = r - ctx->heap.front;
adamc@742	3108 ctx->heap.front = r;
adam@1992	3109
adamc@742	3110 return b;
adamc@742	3111 }
adamc@742	3112
adam@1402	3113 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3114
adamc@463	3115 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3116 int len = strlen(c);
adamc@854	3117 char *p = ctx->outHeaders.start;
adamc@474	3118
adamc@1134	3119 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3120 char *p2;
adamc@474	3121 p += 13;
adamc@474	3122 p2 = strchr(p, '=');
adamc@474	3123
adamc@474	3124 if (p2) {
adamc@474	3125 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3126
adamc@474	3127 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3128 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3129 return NULL;
adamc@1052	3130 else {
adamc@1052	3131 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3132 memcpy(ret, p2+1, sz);
adamc@1052	3133 ret[sz] = 0;
adamc@1052	3134 return ret;
adamc@1052	3135 }
adamc@474	3136 }
adamc@474	3137 }
adamc@474	3138 }
adamc@463	3139
adamc@1134	3140 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3141 char *p2;
adamc@1051	3142
adamc@854	3143 while (1) {
adamc@1051	3144 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3145 if ((p2 = strchr(p, ';'))) {
adamc@1051	3146 size_t n = p2 - (p + len);
adamc@1051	3147 char *r = uw_malloc(ctx, n);
adamc@1051	3148 memcpy(r, p + 1 + len, n-1);
adamc@1051	3149 r[n-1] = 0;
adamc@1051	3150 return r;
adamc@1051	3151 } else
adamc@1051	3152 return p + 1 + len;
adamc@1134	3153 } else if ((p = strchr(p, ';')))
adamc@854	3154 p += 2;
adamc@463	3155 else
adamc@463	3156 return NULL;
adamc@463	3157 }
adamc@463	3158 }
adamc@792	3159
adamc@792	3160 return NULL;
adamc@457	3161 }
adamc@462	3162
adam@1877	3163 static void set_cookie(uw_context ctx) {
adam@1877	3164 if (ctx->usedSig)
adam@1877	3165 ctx->needsResig = 1;
adam@1877	3166 }
adam@1877	3167
adamc@1050	3168 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	3169 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3170 uw_write_header(ctx, c);
adamc@462	3171 uw_write_header(ctx, "=");
adamc@462	3172 uw_write_header(ctx, v);
adamc@466	3173 uw_write_header(ctx, "; path=");
adamc@466	3174 uw_write_header(ctx, prefix);
adamc@1050	3175 if (expires) {
adamc@1050	3176 char formatted[30];
adam@1392	3177 struct tm tm = {};
adam@1392	3178 tm.tm_isdst = -1;
adamc@1050	3179
adam@1365	3180 gmtime_r(&expires->seconds, &tm);
adamc@1050	3181
adamc@1050	3182 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3183
adamc@1050	3184 uw_write_header(ctx, "; expires=");
adamc@1050	3185 uw_write_header(ctx, formatted);
adamc@1050	3186 }
adamc@1050	3187 if (secure)
adamc@1050	3188 uw_write_header(ctx, "; secure");
adamc@462	3189 uw_write_header(ctx, "\r\n");
adam@1877	3190 set_cookie(ctx);
adamc@462	3191
adamc@462	3192 return uw_unit_v;
adamc@462	3193 }
adamc@667	3194
adamc@1050	3195 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3196 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3197 uw_write_header(ctx, c);
adamc@1050	3198 uw_write_header(ctx, "=; path=");
adamc@1050	3199 uw_write_header(ctx, prefix);
adamc@1052	3200 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3201 set_cookie(ctx);
adamc@1050	3202
adamc@1050	3203 return uw_unit_v;
adamc@1050	3204 }
adamc@1050	3205
adamc@1113	3206 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3207
adamc@682	3208 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3209 unsigned i;
adamc@682	3210 delta *d;
adamc@671	3211
adamc@682	3212 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3213 if (ctx->deltas[i].client == client)
adamc@682	3214 return &ctx->deltas[i];
adamc@671	3215
adamc@682	3216 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3217 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3218 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3219
adamc@682	3220 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3221 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3222 }
adamc@671	3223
adamc@682	3224 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3225 d->client = client;
adam@1369	3226 uw_buffer_reset(&d->msgs);
adamc@682	3227 return d;
adamc@671	3228 }
adamc@671	3229
adamc@668	3230 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3231 if (ctx->client == NULL)
adamc@682	3232 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3233
adamc@682	3234 return new_channel(ctx->client);
adamc@668	3235 }
adamc@668	3236
adamc@668	3237 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3238 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3239 size_t len;
adamc@682	3240 int preLen;
adamc@682	3241 char pre[INTS_MAX + 2];
adamc@668	3242
adamc@682	3243 len = strlen(msg);
adamc@682	3244
adamc@682	3245 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3246
adam@1369	3247 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3248 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3249 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3250
adamc@671	3251 return uw_unit_v;
adamc@668	3252 }
adamc@671	3253
adam@1327	3254 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3255 int i;
adamc@1131	3256 cleanup *cl;
adamc@1131	3257
adamc@1131	3258 if (ctx->client)
adamc@1131	3259 release_client(ctx->client);
adamc@1131	3260
adamc@1131	3261 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3262 cl->func(cl->arg);
adamc@1131	3263
adamc@1131	3264 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3265
adamc@1131	3266 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3267 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3268 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3269
adamc@1131	3270 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3271 if (ctx->transactionals[i].free)
adam@1327	3272 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3273
adam@1941	3274 if (ctx->app && ctx->transaction_started) {
adam@1941	3275 ctx->transaction_started = 0;
adam@1941	3276 return ctx->app->db_rollback(ctx);
adam@1941	3277 } else
adam@1941	3278 return 0;
adamc@1131	3279 }
adamc@1131	3280
adam@1956	3281 const char uw_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@1956	3282 const char uw_begin_html5[] = "<!DOCTYPE html><html>";
adam@1728	3283
adam@1877	3284 extern int uw_hash_blocksize;
adam@1877	3285
adam@1877	3286 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3287
adam@1877	3288 static char find_sig(char haystack) {
adam@1877	3289 int i;
adam@1877	3290 char *s = strstr(haystack, sig_intro);
adam@1877	3291
adam@1877	3292 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3293 return NULL;
phurst@1981	3294
adam@1877	3295 s += sizeof sig_intro - 1;
adam@1877	3296
adam@1877	3297 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3298 if (!isxdigit((int)s[i]))
adam@1877	3299 return NULL;
adam@1877	3300
adam@1877	3301 if (s[i] != '"')
adam@1877	3302 return NULL;
adam@1877	3303
adam@1877	3304 return s;
adam@1877	3305 }
adam@1877	3306
adam@2033	3307 static pthread_mutex_t message_send_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2033	3308
adam@1938	3309 int uw_commit(uw_context ctx) {
adamc@1104	3310 int i;
adam@1877	3311 char *sig;
adamc@1104	3312
adamc@1131	3313 if (uw_has_error(ctx)) {
adam@1327	3314 uw_rollback(ctx, 0);
adam@1938	3315 return 0;
adamc@1131	3316 }
adamc@1131	3317
adamc@1104	3318 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3319 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3320 if (ctx->transactionals[i].commit) {
adamc@1083	3321 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3322 if (uw_has_error(ctx)) {
adam@1327	3323 uw_rollback(ctx, 0);
adam@1938	3324 return 0;
adamc@1131	3325 }
adamc@1131	3326 }
adamc@771	3327
adam@2033	3328 // Here's an important lock to provide the abstraction that all messages from one transaction are sent as an atomic unit.
adam@2033	3329 if (ctx->used_deltas > 0)
adam@2033	3330 pthread_mutex_lock(&message_send_mutex);
adam@2033	3331
adam@2000	3332 if (ctx->transaction_started) {
adam@2000	3333 int code = ctx->app->db_commit(ctx);
adam@2000	3334
adam@2000	3335 if (code) {
adam@2033	3336 if (ctx->used_deltas > 0)
adam@2033	3337 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3338
adam@2000	3339 if (ctx->client)
adam@2000	3340 release_client(ctx->client);
adam@2000	3341
adam@2000	3342 if (code == -1) {
adam@2000	3343 // This case is for a serialization failure, which is not really an "error."
adam@2000	3344 // The transaction will restart, so we should rollback any transactionals
adam@2000	3345 // that triggered above.
adam@2000	3346
adam@2000	3347 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3348 if (ctx->transactionals[i].rollback != NULL)
adam@2000	3349 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2000	3350
adam@2000	3351 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3352 if (ctx->transactionals[i].free)
adam@2000	3353 ctx->transactionals[i].free(ctx->transactionals[i].data, 1);
adam@2000	3354
grrwlf@2030	3355 return 1;
adam@2000	3356 }
adam@2000	3357
adam@2000	3358 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3359 if (ctx->transactionals[i].free)
adam@2000	3360 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3361
adam@2000	3362 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@2000	3363 return 0;
adam@2000	3364 }
adam@2000	3365 }
adam@2000	3366
adamc@1104	3367 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3368 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3369 if (ctx->transactionals[i].commit) {
adamc@1083	3370 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3371 if (uw_has_error(ctx)) {
adam@2033	3372 if (ctx->used_deltas > 0)
adam@2033	3373 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3374
adam@2033	3375 if (ctx->client)
adam@2033	3376 release_client(ctx->client);
adam@2033	3377
adam@2033	3378 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3379 if (ctx->transactionals[i].rollback != NULL)
adam@2033	3380 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2033	3381
adam@2033	3382 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3383 if (ctx->transactionals[i].free)
adam@2033	3384 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3385
adam@1938	3386 return 0;
adamc@1131	3387 }
adamc@1131	3388 }
adamc@1131	3389
adamc@682	3390 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3391 delta *d = &ctx->deltas[i];
adamc@682	3392 client *c = find_client(d->client);
adamc@682	3393
adam@1551	3394 assert (c != NULL);
adam@1551	3395 assert(c->mode == USED);
adamc@682	3396
adam@1447	3397 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3398 }
adamc@682	3399
adam@2033	3400 if (ctx->used_deltas > 0)
adam@2033	3401 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3402
adamc@682	3403 if (ctx->client)
adamc@685	3404 release_client(ctx->client);
adamc@771	3405
adamc@1104	3406 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3407 if (ctx->transactionals[i].free)
adam@1327	3408 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3409
vshabanoff@1726	3410 uw_check(ctx, 1);
vshabanoff@1726	3411 *ctx->page.front = 0;
adam@1413	3412
adam@1956	3413 if (!ctx->returning_indirectly
adam@1956	3414 && (ctx->app->is_html5
adam@1956	3415 ? !strncmp(ctx->page.start, uw_begin_html5, sizeof uw_begin_html5 - 1)
adam@1956	3416 : !strncmp(ctx->page.start, uw_begin_xhtml, sizeof uw_begin_xhtml - 1))) {
adam@1728	3417 char *s;
adam@1728	3418
adam@1728	3419 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1956	3420 s = ctx->page.start + (ctx->app->is_html5 ? sizeof uw_begin_html5 - 1 : sizeof uw_begin_xhtml - 1);
adam@1728	3421 s = strchr(s, '<');
adam@1728	3422 if (s == NULL) {
adam@1728	3423 // Weird. Document has no tags!
adam@1728	3424
adam@1728	3425 uw_write(ctx, "<head></head><body></body>");
adam@1728	3426 uw_check(ctx, 1);
adam@1728	3427 *ctx->page.front = 0;
adam@1728	3428 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3429 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3430
adam@1729	3431 // Any freeform JavaScript to include?
adam@1729	3432 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3433 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3434 size_t lenP = lenH + 40 + len;
adam@1729	3435 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3436
adam@1729	3437 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3438 start += ctx->page.start - oldPage;
adam@1729	3439 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3440 ctx->page.front += lenP;
adam@1729	3441 memcpy(start, ctx->script_header, lenH);
adam@1729	3442 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3443 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3444 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3445 } else {
adam@1729	3446 size_t lenH = strlen(ctx->script_header);
adam@1729	3447 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3448
adam@1729	3449 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3450 start += ctx->page.start - oldPage;
adam@1729	3451 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3452 ctx->page.front += lenH;
adam@1729	3453 memcpy(start, ctx->script_header, lenH);
adam@1729	3454 }
adam@1728	3455 } else {
adam@1728	3456 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3457
adam@1729	3458 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3459 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3460 size_t lenP = lenH + 53 + len;
adam@1729	3461 char start = s, oldPage = ctx->page.start;
adam@1729	3462
adam@1729	3463 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3464 start += ctx->page.start - oldPage;
adam@1729	3465 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3466 ctx->page.front += lenP;
adam@1729	3467 memcpy(start, "<head>", 6);
adam@1729	3468 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3469 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3470 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3471 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3472 } else {
adam@1729	3473 size_t lenH = strlen(ctx->script_header);
adam@1729	3474 size_t lenP = lenH + 13;
adam@1729	3475 char start = s, oldPage = ctx->page.start;
adam@1729	3476
adam@1729	3477 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3478 start += ctx->page.start - oldPage;
adam@1729	3479 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3480 ctx->page.front += lenP;
adam@1729	3481 memcpy(start, "<head>", 6);
adam@1729	3482 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3483 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3484 }
adamc@916	3485 }
adamc@916	3486 }
adam@1877	3487
adam@1877	3488 if (ctx->needsResig) {
adam@1877	3489 sig = find_sig(ctx->page.start);
adam@1877	3490 if (sig) {
adam@1877	3491 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3492
adam@1877	3493 do {
adam@1877	3494 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3495 sig = find_sig(sig);
adam@1877	3496 } while (sig);
adam@1877	3497 }
adam@1877	3498 }
adam@1938	3499
adam@1938	3500 return 0;
adamc@671	3501 }
adamc@671	3502
adamc@683	3503
adamc@1113	3504 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3505
adam@2001	3506 int uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3507 uw_callback_with_retry free) {
adamc@771	3508 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3509 if (ctx->used_transactionals+1 > uw_transactionals_max)
adam@2001	3510 // Exceeded limit on number of transactionals.
adam@2001	3511 return -1;
adamc@1084	3512 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3513 ++ctx->n_transactionals;
adamc@771	3514 }
adamc@771	3515
adamc@771	3516 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3517 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3518 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3519 ctx->transactionals[ctx->used_transactionals++].free = free;
adam@2001	3520
adam@2001	3521 return 0;
adamc@771	3522 }
adamc@771	3523
adamc@683	3524
adamc@683	3525 // "Garbage collection"
adamc@683	3526
adamc@1121	3527 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3528 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3529
adamc@1121	3530 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3531 int r = setjmp(ctx->jmp_buf);
adamc@683	3532
adamc@1121	3533 if (r == 0)
adamc@1121	3534 uw_do_expunge(ctx, cli, data);
adamc@1121	3535 else
adamc@1121	3536 ctx->app->db_rollback(ctx);
adamc@1121	3537
adamc@1121	3538 uw_post_expunge(ctx, data);
adamc@683	3539
adamc@683	3540 return r;
adamc@683	3541 }
adamc@683	3542
adamc@683	3543 void uw_prune_clients(uw_context ctx) {
adamc@683	3544 client c, next, *prev = NULL;
adamc@683	3545 time_t cutoff;
adamc@683	3546
adamc@1094	3547 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3548
adamc@683	3549 pthread_mutex_lock(&clients_mutex);
adam@1707	3550 pruning_thread = pthread_self();
adam@1707	3551 pruning_thread_initialized = 1;
adamc@683	3552
adamc@683	3553 for (c = clients_used; c; c = next) {
adamc@683	3554 next = c->next;
adamc@683	3555 pthread_mutex_lock(&c->lock);
adamc@685	3556 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3557 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3558 if (prev)
adamc@683	3559 prev->next = next;
adamc@683	3560 else
adamc@683	3561 clients_used = next;
adamc@683	3562 while (fk == UNLIMITED_RETRY) {
adam@1941	3563 uw_reset(ctx);
adamc@1121	3564 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3565 if (fk == UNLIMITED_RETRY)
adamc@684	3566 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3567 }
adamc@684	3568 if (fk == SUCCESS)
adamc@684	3569 free_client(c);
adamc@1121	3570 else
adamc@856	3571 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3572 }
adamc@683	3573 else
adamc@683	3574 prev = c;
adamc@683	3575 pthread_mutex_unlock(&c->lock);
adamc@683	3576 }
adamc@683	3577
adamc@683	3578 pthread_mutex_unlock(&clients_mutex);
adamc@683	3579 }
adamc@687	3580
adamc@687	3581 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3582 int r = setjmp(ctx->jmp_buf);
adamc@687	3583
adamc@687	3584 if (r == 0) {
adam@1936	3585 uw_ensure_transaction(ctx);
adamc@1094	3586 ctx->app->initializer(ctx);
adamc@1094	3587 if (ctx->app->db_commit(ctx))
adamc@687	3588 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3589 }
adamc@687	3590
adamc@687	3591 return r;
adamc@687	3592 }
adamc@717	3593
adamc@1065	3594 static int url_bad(uw_Basis_string s) {
adamc@1065	3595 for (; *s; ++s)
adamc@1153	3596 if (!isgraph((int)*s))
adamc@1065	3597 return 1;
adamc@1065	3598
adamc@1065	3599 return 0;
adamc@1065	3600 }
adamc@1065	3601
adamc@717	3602 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3603 if (url_bad(s))
adamc@1065	3604 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3605 if (ctx->app->check_url(s))
adamc@770	3606 return s;
adamc@770	3607 else
adamc@770	3608 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3609 }
adamc@734	3610
adamc@770	3611 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3612 if (url_bad(s))
adamc@1065	3613 return NULL;
adamc@1094	3614 if (ctx->app->check_url(s))
adamc@770	3615 return s;
adamc@770	3616 else
adamc@770	3617 return NULL;
adamc@770	3618 }
adamc@770	3619
adam@1465	3620 static int mime_format(const char *s) {
adamc@770	3621 for (; *s; ++s)
grrwlf@2024	3622 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.' && *s != '+')
adamc@770	3623 return 0;
adamc@770	3624
adamc@770	3625 return 1;
adamc@770	3626 }
adamc@770	3627
adamc@741	3628 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3629 if (!mime_format(s))
adamc@770	3630 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3631
adamc@1094	3632 if (ctx->app->check_mime(s))
adamc@770	3633 return s;
adamc@770	3634 else
adamc@770	3635 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3636 }
adamc@770	3637
adamc@770	3638 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3639 if (!mime_format(s))
adamc@770	3640 return NULL;
adamc@770	3641
adamc@1094	3642 if (ctx->app->check_mime(s))
adamc@770	3643 return s;
adamc@770	3644 else
adamc@770	3645 return NULL;
adamc@741	3646 }
adamc@741	3647
adam@1465	3648 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3649 if (!mime_format(s))
adam@1465	3650 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3651
adam@1465	3652 if (ctx->app->check_requestHeader(s))
adam@1465	3653 return s;
adam@1465	3654 else
adam@1465	3655 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3656 }
adam@1465	3657
adam@1465	3658 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3659 if (!mime_format(s))
adam@1465	3660 return NULL;
adam@1465	3661
adam@1465	3662 if (ctx->app->check_requestHeader(s))
adam@1465	3663 return s;
adam@1465	3664 else
adam@1465	3665 return NULL;
adam@1465	3666 }
adam@1465	3667
adam@1465	3668 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3669 if (!mime_format(s))
adam@1465	3670 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3671
adam@1465	3672 if (ctx->app->check_responseHeader(s))
adam@1465	3673 return s;
adam@1465	3674 else
adam@1465	3675 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3676 }
adam@1465	3677
adam@1799	3678 static int envVar_format(const char *s) {
adam@1799	3679 for (; *s; ++s)
adam@1799	3680 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3681 return 0;
adam@1799	3682
adam@1799	3683 return 1;
adam@1799	3684 }
adam@1799	3685
adam@1465	3686 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3687 if (!envVar_format(s))
adam@1465	3688 return NULL;
adam@1465	3689
adam@1465	3690 if (ctx->app->check_responseHeader(s))
adam@1465	3691 return s;
adam@1465	3692 else
adam@1465	3693 return NULL;
adam@1465	3694 }
adam@1465	3695
adam@1799	3696 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3697 if (!envVar_format(s))
adam@1799	3698 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3699
adam@1799	3700 if (ctx->app->check_envVar(s))
adam@1799	3701 return s;
adam@1799	3702 else
adam@1799	3703 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3704 }
adam@1799	3705
adam@1799	3706 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3707 if (!mime_format(s))
adam@1799	3708 return NULL;
adam@1799	3709
adam@1799	3710 if (ctx->app->check_envVar(s))
adam@1799	3711 return s;
adam@1799	3712 else
adam@1799	3713 return NULL;
adam@1799	3714 }
adam@1799	3715
adam@1465	3716 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3717 return uw_Basis_requestHeader(ctx, name);
adam@1465	3718 }
adam@1465	3719
adam@1465	3720 static int mime_value_format(const char *s) {
adam@1465	3721 for (; *s; ++s)
adam@1465	3722 if (s == '\r' \|\| s == '\n')
adam@1465	3723 return 0;
adam@1465	3724
adam@1465	3725 return 1;
adam@1465	3726 }
adam@1465	3727
adam@1465	3728 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3729 if (!mime_value_format(value))
adam@1465	3730 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3731
adam@1465	3732 uw_write_header(ctx, name);
adam@1465	3733 uw_write_header(ctx, ": ");
adam@1465	3734 uw_write_header(ctx, value);
adam@1465	3735 uw_write_header(ctx, "\r\n");
adam@1465	3736
adam@1465	3737 return uw_unit_v;
adam@1465	3738 }
adam@1465	3739
adam@1799	3740 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1993	3741 if (ctx->get_env)
adam@1993	3742 return ctx->get_env(ctx->get_env_data, name);
adam@1993	3743 else
adam@1994	3744 return getenv(name);
adam@1799	3745 }
adam@1799	3746
adamc@734	3747 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3748 return s ? s : "";
adamc@734	3749 }
adamc@734	3750
adamc@734	3751 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3752 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3753 int i;
phurst@1981	3754
adamc@734	3755 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3756 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3757
adamc@734	3758 return r;
adamc@734	3759 }
adamc@734	3760
adam@1512	3761 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3762 * optimizations that would enable timing attacks. See:
adam@1512	3763 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3764 */
adam@1512	3765 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3766 int i, x = 0, len1 = strlen(s1);
adam@1512	3767
adam@1512	3768 if (len1 != strlen(s2)) return 0;
adam@1512	3769
adam@1512	3770 for (i = 0; i < len1; ++i) {
adam@1512	3771 __asm__ __volatile__ ("");
adam@1512	3772 x \|= s1[i] ^ s2[i];
adam@1512	3773 }
adam@1512	3774
adam@1512	3775 return x == 0;
adam@1512	3776 }
adam@1512	3777
adamc@734	3778 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3779 ctx->usedSig = 1;
adamc@1094	3780 return ctx->app->cookie_sig(ctx);
adamc@734	3781 }
adamc@737	3782
adamc@737	3783 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3784 return f.name;
adamc@737	3785 }
adamc@737	3786
adamc@740	3787 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3788 return f.type;
adamc@740	3789 }
adamc@740	3790
adamc@745	3791 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3792 return b.size;
adamc@745	3793 }
adamc@745	3794
adamc@1119	3795 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3796 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3797
adamc@1119	3798 return b;
adamc@1119	3799 }
adamc@1119	3800
adamc@737	3801 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3802 return f.data;
adamc@737	3803 }
adamc@741	3804
adam@1347	3805 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3806 return pb.type;
adam@1347	3807 }
adam@1347	3808
adam@1347	3809 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3810 return pb.data;
adam@1347	3811 }
adam@1347	3812
adam@1471	3813 static char *old_headers(uw_context ctx) {
adam@1471	3814 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3815 return NULL;
adam@1471	3816 else {
adam@1471	3817 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3818
adam@1471	3819 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3820 return NULL;
adam@1471	3821 else {
adam@1471	3822 s = strchr(s+15, '\n');
adam@1471	3823 if (s == NULL)
adam@1471	3824 return NULL;
adam@1471	3825 else
adam@1471	3826 return uw_strdup(ctx, s+1);
adam@1471	3827 }
adam@1471	3828 }
adam@1471	3829 }
adam@1471	3830
adamc@741	3831 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3832 cleanup *cl;
adamc@741	3833 int len;
adam@1471	3834 char *oldh;
adamc@741	3835
adam@1451	3836 if (!ctx->allowed_to_return_indirectly)
adam@1451	3837 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3838
adamc@1065	3839 ctx->returning_indirectly = 1;
adam@1471	3840 oldh = old_headers(ctx);
adam@1369	3841 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3842 uw_buffer_reset(&ctx->page);
adamc@741	3843
adamc@856	3844 uw_write_header(ctx, on_success);
adamc@856	3845 uw_write_header(ctx, "Content-Type: ");
adamc@741	3846 uw_write_header(ctx, mimeType);
adam@1934	3847 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369	3848 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3849 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3850 ctx->outHeaders.front += len;
adamc@1066	3851 uw_write_header(ctx, "\r\n");
adam@1471	3852 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3853
adam@1369	3854 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3855
adamc@741	3856 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3857 cl->func(cl->arg);
adamc@741	3858
adamc@741	3859 ctx->cleanup_front = ctx->cleanup;
adamc@741	3860
adamc@1065	3861 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3862 }
adamc@1065	3863
adam@2046	3864 void uw_replace_page(uw_context ctx, const char *data, size_t size) {
adam@2046	3865 uw_buffer_reset(&ctx->page);
adam@2046	3866 ctx_uw_buffer_append(ctx, "page", &ctx->page, data, size);
adam@2046	3867 }
adam@2046	3868
adam@1932	3869 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932	3870 cleanup *cl;
adam@1932	3871 int len;
adam@1932	3872 char *oldh;
adam@1932	3873
adam@1932	3874 if (!ctx->allowed_to_return_indirectly)
adam@1932	3875 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932	3876
adam@1932	3877 ctx->returning_indirectly = 1;
adam@1932	3878 oldh = old_headers(ctx);
adam@1932	3879 uw_buffer_reset(&ctx->outHeaders);
adam@1932	3880
adam@1932	3881 uw_write_header(ctx, on_success);
adam@1932	3882 uw_write_header(ctx, "Content-Type: ");
adam@1932	3883 uw_write_header(ctx, mimeType);
adam@1934	3884 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932	3885 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932	3886 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932	3887 ctx->outHeaders.front += len;
adam@1932	3888 uw_write_header(ctx, "\r\n");
adam@1932	3889 if (oldh) uw_write_header(ctx, oldh);
adam@1932	3890
adam@1932	3891 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932	3892 cl->func(cl->arg);
adam@1932	3893
adam@1932	3894 ctx->cleanup_front = ctx->cleanup;
adam@1932	3895
adam@1932	3896 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932	3897 }
adam@1932	3898
adamc@1065	3899 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3900 cleanup *cl;
adamc@1066	3901 char *s;
adam@1471	3902 char *oldh;
adamc@1065	3903
adam@1451	3904 if (!ctx->allowed_to_return_indirectly)
adam@1451	3905 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3906
adamc@1065	3907 ctx->returning_indirectly = 1;
adam@1471	3908 oldh = old_headers(ctx);
adam@1369	3909 uw_buffer_reset(&ctx->page);
adam@1369	3910 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3911 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3912 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3913 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3914
adam@1409	3915 if (on_success[0])
adam@1409	3916 uw_write_header(ctx, on_redirect);
adam@1409	3917 else
adam@1409	3918 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3919 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3920 if (s) {
adamc@1066	3921 char *s2;
adam@1409	3922 if (s[0] == '\n') ++s;
adam@1409	3923 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3924 *s2 = 0;
adamc@1066	3925 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3926 uw_write_header(ctx, s);
adamc@1066	3927 uw_write_header(ctx, "\n");
adamc@1066	3928 }
adamc@1066	3929 }
adamc@1066	3930 }
adamc@1066	3931
adamc@1065	3932 uw_write_header(ctx, "Location: ");
adamc@1065	3933 uw_write_header(ctx, url);
adamc@1065	3934 uw_write_header(ctx, "\r\n\r\n");
adam@1471	3935 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	3936
adamc@1065	3937 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3938 cl->func(cl->arg);
adamc@1065	3939
adamc@1065	3940 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3941
adamc@1065	3942 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3943 }
adamc@874	3944
adamc@874	3945 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	3946 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	3947
adamc@874	3948 for (; *s; ++s) {
adamc@874	3949 if (s[0] == '\'') {
adamc@874	3950 *r++ = '\'';
adamc@874	3951 for (++s; *s; ++s) {
adamc@874	3952 if (s[0] == '\'') {
adamc@874	3953 *r++ = '\'';
adamc@874	3954 break;
adamc@874	3955 } else if (s[0] == '\\') {
adam@1467	3956 *r++ = '\\';
adam@1467	3957 *r++ = s[1];
adam@1467	3958 ++s;
adamc@874	3959 } else
adamc@874	3960 *r++ = s[0];
adamc@874	3961 }
adamc@874	3962 if (*s == 0) break;
adam@1467	3963 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	3964 s += 3;
adamc@874	3965 else
adamc@874	3966 *r++ = s[0];
adamc@874	3967 }
adamc@874	3968
adam@1467	3969 *r = 0;
adam@1467	3970 return ret;
adamc@874	3971 }
adamc@874	3972
adamc@922	3973 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3974 va_list ap;
adamc@922	3975 size_t len = 1;
adamc@922	3976 char s, r, *s2;
phurst@1981	3977
adamc@922	3978 va_start(ap, ctx);
adamc@922	3979 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3980 len += strlen(s);
adamc@922	3981 va_end(ap);
adamc@922	3982
adamc@922	3983 r = uw_malloc(ctx, len);
adamc@922	3984 va_start(ap, ctx);
adamc@922	3985 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3986 while (*s)
adamc@922	3987 s2++ = s++;
adamc@922	3988 va_end(ap);
adamc@922	3989 *s2 = 0;
adamc@922	3990
adamc@922	3991 return r;
adamc@922	3992 }
adamc@1006	3993
adam@1365	3994 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	3995
adamc@1006	3996 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	3997 uw_Basis_time r = { time(NULL) };
adam@1365	3998 return r;
adamc@1006	3999 }
adamc@1061	4000
adam@1369	4001 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	4002 tm.seconds += n;
adam@1365	4003 return tm;
adamc@1138	4004 }
adamc@1138	4005
adam@1514	4006 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	4007 return difftime(tm2.seconds, tm1.seconds);
adam@1514	4008 }
adam@1514	4009
adam@1685	4010 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	4011 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	4012 }
adam@1685	4013
adam@1685	4014 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	4015 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	4016 }
adam@1685	4017
adam@1514	4018 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	4019 return tm.seconds;
adam@1514	4020 }
adam@1514	4021
phurst@1971	4022 uw_Basis_time uw_Basis_fromDatetime(uw_context ctx, uw_Basis_int year, uw_Basis_int month, uw_Basis_int day, uw_Basis_int hour, uw_Basis_int minute, uw_Basis_int second) {
phurst@1971	4023 struct tm tm = { .tm_year = year - 1900, .tm_mon = month, .tm_mday = day,
adam@2015	4024 .tm_hour = hour, .tm_min = minute, .tm_sec = second,
adam@2015	4025 .tm_isdst = -1 };
phurst@1984	4026 uw_Basis_time r = { timelocal(&tm) };
phurst@1971	4027 return r;
phurst@1971	4028 }
phurst@1971	4029
phurst@1971	4030 uw_Basis_int uw_Basis_datetimeYear(uw_context ctx, uw_Basis_time time) {
phurst@1971	4031 struct tm tm;
phurst@1982	4032 localtime_r(&time.seconds, &tm);
phurst@1971	4033 return tm.tm_year + 1900;
phurst@1971	4034 }
phurst@1971	4035
phurst@1971	4036 uw_Basis_int uw_Basis_datetimeMonth(uw_context ctx, uw_Basis_time time) {
phurst@1971	4037 struct tm tm;
phurst@1982	4038 localtime_r(&time.seconds, &tm);
phurst@1971	4039 return tm.tm_mon;
phurst@1971	4040 }
phurst@1971	4041
phurst@1971	4042 uw_Basis_int uw_Basis_datetimeDay(uw_context ctx, uw_Basis_time time) {
phurst@1971	4043 struct tm tm;
phurst@1982	4044 localtime_r(&time.seconds, &tm);
phurst@1971	4045 return tm.tm_mday;
phurst@1971	4046 }
phurst@1971	4047
phurst@1971	4048 uw_Basis_int uw_Basis_datetimeHour(uw_context ctx, uw_Basis_time time) {
phurst@1971	4049 struct tm tm;
phurst@1982	4050 localtime_r(&time.seconds, &tm);
phurst@1971	4051 return tm.tm_hour;
phurst@1971	4052 }
phurst@1971	4053
phurst@1971	4054 uw_Basis_int uw_Basis_datetimeMinute(uw_context ctx, uw_Basis_time time) {
phurst@1971	4055 struct tm tm;
phurst@1982	4056 localtime_r(&time.seconds, &tm);
phurst@1971	4057 return tm.tm_min;
phurst@1971	4058 }
phurst@1971	4059
phurst@1971	4060 uw_Basis_int uw_Basis_datetimeSecond(uw_context ctx, uw_Basis_time time) {
phurst@1971	4061 struct tm tm;
phurst@1982	4062 localtime_r(&time.seconds, &tm);
phurst@1971	4063 return tm.tm_sec;
phurst@1971	4064 }
phurst@1971	4065
phurst@1973	4066 uw_Basis_int uw_Basis_datetimeDayOfWeek(uw_context ctx, uw_Basis_time time) {
phurst@1973	4067 struct tm tm;
phurst@1982	4068 localtime_r(&time.seconds, &tm);
phurst@1973	4069 return tm.tm_wday;
phurst@1973	4070 }
phurst@1971	4071
phurst@1971	4072
adamc@1061	4073 void uw_get_global(uw_context ctx, char name) {
adamc@1061	4074 int i;
adamc@1061	4075
adamc@1061	4076 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4077 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	4078 return ctx->globals[i].data;
adamc@1061	4079
adamc@1061	4080 return NULL;
adamc@1061	4081 }
adamc@1061	4082
adamc@1113	4083 size_t uw_globals_max = SIZE_MAX;
adamc@1113	4084
adamc@1061	4085 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	4086 int i;
adamc@1061	4087
adamc@1061	4088 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4089 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	4090 if (ctx->globals[i].free)
adamc@1061	4091 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	4092 ctx->globals[i].data = data;
adamc@1061	4093 ctx->globals[i].free = free;
adamc@1061	4094 return;
adamc@1061	4095 }
adamc@1089	4096
adamc@1113	4097 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	4098 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	4099
adamc@1061	4100 ++ctx->n_globals;
adamc@1061	4101 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	4102 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	4103 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	4104 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	4105 }
adamc@1061	4106
adamc@1061	4107 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	4108 return !!isalnum((int)c);
adamc@1061	4109 }
adamc@1061	4110
adamc@1061	4111 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	4112 return !!isalpha((int)c);
adamc@1061	4113 }
adamc@1061	4114
adamc@1061	4115 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	4116 return !!isblank((int)c);
adamc@1061	4117 }
adamc@1061	4118
adamc@1061	4119 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	4120 return !!iscntrl((int)c);
adamc@1061	4121 }
adamc@1061	4122
adamc@1061	4123 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4124 return !!isdigit((int)c);
adamc@1061	4125 }
adamc@1061	4126
adamc@1061	4127 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	4128 return !!isgraph((int)c);
adamc@1061	4129 }
adamc@1061	4130
adamc@1061	4131 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4132 return !!islower((int)c);
adamc@1061	4133 }
adamc@1061	4134
adamc@1061	4135 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	4136 return !!isprint((int)c);
adamc@1061	4137 }
adamc@1061	4138
adamc@1061	4139 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	4140 return !!ispunct((int)c);
adamc@1061	4141 }
adamc@1061	4142
adamc@1061	4143 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	4144 return !!isspace((int)c);
adamc@1061	4145 }
adamc@1063	4146
adamc@1061	4147 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4148 return !!isupper((int)c);
adamc@1061	4149 }
adamc@1061	4150
adamc@1061	4151 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4152 return !!isxdigit((int)c);
adamc@1061	4153 }
adamc@1061	4154
adamc@1061	4155 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4156 return tolower((int)c);
adamc@1061	4157 }
adamc@1061	4158
adamc@1061	4159 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4160 return toupper((int)c);
adamc@1061	4161 }
adamc@1066	4162
adamc@1128	4163 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	4164 return (unsigned char)c;
adamc@1128	4165 }
adamc@1128	4166
adamc@1128	4167 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	4168 return n;
adamc@1128	4169 }
adamc@1128	4170
adamc@1066	4171 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	4172 return ctx->current_url;
adamc@1066	4173 }
adamc@1066	4174
adamc@1066	4175 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	4176 ctx->current_url = s;
adamc@1066	4177 }
adamc@1114	4178
adamc@1114	4179 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	4180 ctx->deadline = n;
adamc@1114	4181 }
adamc@1114	4182
adamc@1114	4183 void uw_check_deadline(uw_context ctx) {
adamc@1114	4184 if (uw_time > ctx->deadline)
adamc@1114	4185 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	4186 }
adamc@1115	4187
adamc@1115	4188 size_t uw_database_max = SIZE_MAX;
adamc@1120	4189
adam@1389	4190 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@1389	4191 fprintf(stderr, "%s\n", s);
adam@1389	4192 return 0;
adam@1389	4193 }
adam@1389	4194
adamc@1120	4195 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
grrwlf@1997	4196 if (ctx->loggers->log_debug)
grrwlf@1997	4197 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@1334	4198 else
adam@1334	4199 fprintf(stderr, "%s\n", s);
adamc@1120	4200 return uw_unit_v;
adamc@1120	4201 }
adamc@1250	4202
adam@1933	4203 static pthread_mutex_t rand_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@1933	4204
adamc@1250	4205 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@1486	4206 uw_Basis_int ret;
adam@1933	4207 pthread_mutex_lock(&rand_mutex);
adam@1486	4208 int r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@1933	4209 pthread_mutex_unlock(&rand_mutex);
phurst@1981	4210
adam@1486	4211 if (r)
adam@1486	4212 return abs(ret);
adam@1486	4213 else
adam@1486	4214 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	4215 }
adam@1347	4216
adam@1347	4217 void uw_noPostBody(uw_context ctx) {
adam@1347	4218 ctx->hasPostBody = 0;
adam@1347	4219 }
adam@1347	4220
adam@1347	4221 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	4222 ctx->hasPostBody = 1;
adam@1347	4223 ctx->postBody = pb;
adam@1347	4224 }
adam@1347	4225
adam@1347	4226 int uw_hasPostBody(uw_context ctx) {
adam@1347	4227 return ctx->hasPostBody;
adam@1347	4228 }
adam@1347	4229
adam@1386	4230 void uw_isPost(uw_context ctx) {
adam@1386	4231 ctx->isPost = 1;
adam@1386	4232 }
adam@1386	4233
adam@1386	4234 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4235 return ctx->isPost;
adam@1386	4236 }
adam@1386	4237
adam@1485	4238 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4239 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4240 }
adam@1485	4241
adam@1370	4242 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4243 ctx->queryString = s;
adam@1370	4244 }
adam@1370	4245
adam@1370	4246 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4247 return ctx->queryString;
adam@1370	4248 }
adam@1370	4249
adam@1347	4250 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4251 if (ctx->hasPostBody)
adam@1347	4252 return ctx->postBody;
adam@1347	4253 else
adam@1347	4254 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4255 }
adam@1349	4256
adam@1349	4257 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4258 int r = setjmp(ctx->jmp_buf);
adam@1349	4259
adam@1349	4260 if (r == 0) {
adam@1936	4261 uw_ensure_transaction(ctx);
adam@1418	4262
adam@1349	4263 callback(ctx);
adam@1349	4264 }
adam@1349	4265
adam@1349	4266 return r;
adam@1349	4267 }
adam@1360	4268
adam@1360	4269 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4270 char buf[14];
adam@1397	4271 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4272 }
adam@1365	4273
adam@1365	4274 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4275 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	4276 }
adam@1365	4277
adam@1365	4278 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@2034	4279 return !!(t1.seconds < t2.seconds \|\| (t1.seconds == t2.seconds && t1.microseconds < t2.microseconds));
adam@1365	4280 }
adam@1365	4281
adam@1365	4282 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4283 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4284 }
adam@1365	4285
adam@1372	4286 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4287 struct tm stm = {};
adam@1375	4288 char *end = strchr(s, 0);
adam@1449	4289 stm.tm_isdst = -1;
adam@1375	4290
adam@1632	4291 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4292 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4293
kkallio@1448	4294 r->seconds = timegm(&stm);
adam@1373	4295 r->microseconds = 0;
adam@1373	4296
adam@1373	4297 return r;
adam@1374	4298 }
adam@1374	4299 else
adam@1373	4300 return NULL;
adam@1372	4301 }
adam@1407	4302
adam@1407	4303 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4304 int r = setjmp(ctx->jmp_buf);
adam@1407	4305
adam@1407	4306 if (ctx->app->on_error) {
adam@1407	4307 if (r == 0) {
adam@1936	4308 uw_ensure_transaction(ctx);
adam@1407	4309
adam@1409	4310 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4311 if (on_success[0])
adam@1409	4312 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4313 else
adam@1409	4314 uw_write_header(ctx, "Status: ");
adam@1409	4315 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919	4316 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1956	4317 uw_write(ctx, ctx->app->is_html5 ? uw_begin_html5 : uw_begin_xhtml);
adam@1407	4318 ctx->app->on_error(ctx, msg);
adam@1407	4319 uw_write(ctx, "</html>");
adam@1407	4320 }
adam@1407	4321
adam@1407	4322 return r;
adam@1407	4323 } else
adam@1407	4324 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4325 }
adam@1451	4326
adam@1451	4327 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4328 ctx->allowed_to_return_indirectly = 1;
adam@1451	4329 }
adam@1483	4330
adam@1556	4331 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4332 int len;
adam@1703	4333 char *r;
adam@1703	4334
adam@1703	4335 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4336 r = ctx->heap.front;
adam@1703	4337 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4338 ctx->heap.front += len+1;
adam@1703	4339 return r;
adam@1556	4340 }
adam@1571	4341
adam@1571	4342 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4343 return n;
adam@1571	4344 }
adam@1571	4345
adam@1571	4346 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4347 return ceil(n);
adam@1571	4348 }
adam@1571	4349
adam@1571	4350 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4351 return trunc(n);
adam@1571	4352 }
adam@1571	4353
adam@1571	4354 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4355 return round(n);
adam@1571	4356 }
adam@1755	4357
adam@1755	4358 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755	4359 char *p;
adam@1755	4360
adam@1755	4361 for (p = s; *p; ++p) {
adam@1755	4362 char c = *p;
adam@1801	4363 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755	4364 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4365 }
adam@1755	4366
adam@1755	4367 return s;
adam@1755	4368 }
adam@1755	4369
adam@1755	4370 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4371 char *p;
adam@1755	4372
adam@1755	4373 for (p = s; *p; ++p) {
adam@1755	4374 char c = *p;
adam@1801	4375 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4376 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4377 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4378 }
adam@1755	4379
adam@1755	4380 return s;
adam@1755	4381 }
adam@1755	4382
adam@1755	4383 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4384 char *p;
adam@1755	4385
adam@1755	4386 if (!*s)
adam@1755	4387 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4388
adam@1801	4389 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4390 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4391
adam@1755	4392 for (p = s; *p; ++p) {
adam@1755	4393 char c = *p;
adam@1801	4394 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4395 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4396 }
adam@1755	4397
adam@1755	4398 return s;
adam@1755	4399 }
adam@1787	4400
adam@1787	4401 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4402 return f.name;
adam@1787	4403 }
adam@1787	4404
adam@1787	4405 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4406 return f.value;
adam@1787	4407 }
adam@1787	4408
adam@1787	4409 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4410 return f.remaining;
adam@1787	4411 }
adam@1787	4412
adam@1787	4413 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4414 char *unurl;
adam@1787	4415 uw_Basis_postField *f;
adam@1787	4416
adam@1788	4417 if (!ctx->hasPostBody)
adam@1788	4418 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4419
adam@1788	4420 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4421 return NULL;
adam@1787	4422
adam@1787	4423 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4424 unurl = s;
adam@1787	4425 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4426 s = strchr(s, 0);
adam@1788	4427 if (!s)
adam@1788	4428 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4429 ++s;
adam@1788	4430 unurl = s;
adam@1788	4431 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4432 s = strchr(s, 0);
adam@1788	4433 if (!s)
adam@1788	4434 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4435 f->remaining = s+1;
adam@1787	4436
adam@1787	4437 return f;
adam@1787	4438 }
adam@2008	4439
adam@2008	4440 uw_Basis_string uw_Basis_blessData(uw_context ctx, uw_Basis_string s) {
adam@2008	4441 char *p = s;
adam@2008	4442
adam@2008	4443 for (; *p; ++p)
adam@2008	4444 if (!isalnum(p) && p != '-' && *p != '_')
adam@2008	4445 uw_error(ctx, FATAL, "Illegal HTML5 data-* attribute: %s", s);
adam@2008	4446
adam@2008	4447 return s;
adam@2008	4448 }

Mercurial > urweb

annotate src/c/urweb.c @ 2049:459ccbf8cd08