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

annotate src/c/urweb.c @ 2234:2f7ed04332a0

Progress on LRU cache but still more known bugs to fix.

author	Ziv Scully <ziv@mit.edu>
date	Sun, 28 Jun 2015 12:46:51 -0700
parents	e10881cd92da
children	88cc0f44c940

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
ziv@2234	25 #include "uthash.h"
ziv@2234	26
adam@1431	27 uw_unit uw_unit_v = 0;
adamc@102	28
adamc@667	29
adamc@667	30 // Socket extras
adamc@667	31
adamc@863	32 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667	33 while (len > 0) {
adamc@856	34 ssize_t n = send(sock, buf, len, 0);
adamc@856	35
adamc@856	36 if (n < 0)
adamc@856	37 return n;
adamc@856	38
adamc@856	39 buf += n;
adamc@856	40 len -= n;
adamc@856	41 }
adamc@856	42
adamc@856	43 return 0;
adamc@856	44 }
adamc@856	45
adamc@856	46 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856	47 while (len > 0) {
adamc@856	48 ssize_t n = write(fd, buf, len);
adamc@667	49
adamc@667	50 if (n < 0)
adamc@667	51 return n;
adamc@667	52
adamc@667	53 buf += n;
adamc@667	54 len -= n;
adamc@667	55 }
adamc@667	56
adamc@667	57 return 0;
adamc@667	58 }
adamc@667	59
adamc@667	60
adamc@667	61 // Buffers
adamc@667	62
adam@1369	63 void uw_buffer_init(size_t max, uw_buffer *b, size_t s) {
adamc@1113	64 b->max = max;
adamc@667	65 b->front = b->start = malloc(s);
adamc@667	66 b->back = b->front + s;
adamc@667	67 }
adamc@667	68
adam@1369	69 void uw_buffer_free(uw_buffer *b) {
adamc@667	70 free(b->start);
adamc@667	71 }
adamc@667	72
adam@1369	73 void uw_buffer_reset(uw_buffer *b) {
adamc@667	74 b->front = b->start;
adamc@667	75 }
adamc@667	76
adam@1369	77 int uw_buffer_check(uw_buffer *b, size_t extra) {
adamc@667	78 if (b->back - b->front < extra) {
adamc@667	79 size_t desired = b->front - b->start + extra, next;
adamc@667	80 char *new_heap;
adamc@667	81
adamc@667	82 next = b->back - b->start;
adamc@667	83 if (next == 0)
adamc@667	84 next = 1;
adamc@667	85 for (; next < desired; next *= 2);
adamc@667	86
adamc@1134	87 if (next > b->max) {
adamc@1113	88 if (desired <= b->max)
adamc@1113	89 next = desired;
adamc@1113	90 else
adamc@1113	91 return 1;
adamc@1134	92 }
adamc@1113	93
adamc@667	94 new_heap = realloc(b->start, next);
adamc@667	95 b->front = new_heap + (b->front - b->start);
adamc@667	96 b->back = new_heap + next;
adamc@667	97 b->start = new_heap;
adamc@667	98 }
adamc@1113	99
adamc@1113	100 return 0;
adamc@1113	101 }
adamc@1113	102
adamc@1113	103 __attribute__((noreturn)) void uw_error(uw_context, failure_kind, const char *, ...);
adamc@1113	104
adam@1369	105 static void ctx_uw_buffer_check(uw_context ctx, const char kind, uw_buffer b, size_t extra) {
adam@1369	106 if (uw_buffer_check(b, extra))
adamc@1113	107 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@667	108 }
adamc@667	109
adam@1369	110 size_t uw_buffer_used(uw_buffer *b) {
adamc@667	111 return b->front - b->start;
adamc@667	112 }
adamc@667	113
adam@1369	114 size_t uw_buffer_avail(uw_buffer *b) {
adamc@667	115 return b->back - b->start;
adamc@667	116 }
adamc@667	117
adam@1369	118 int uw_buffer_append(uw_buffer b, const char s, size_t len) {
adam@1369	119 if (uw_buffer_check(b, len+1))
adamc@1113	120 return 1;
adamc@1113	121
adamc@1113	122 memcpy(b->front, s, len);
adamc@1113	123 b->front += len;
adamc@1113	124 *b->front = 0;
adamc@1113	125
adamc@1113	126 return 0;
adamc@1113	127 }
adamc@1113	128
adam@1369	129 static void ctx_uw_buffer_append(uw_context ctx, const char kind, uw_buffer b, const char *s, size_t len) {
adam@1369	130 ctx_uw_buffer_check(ctx, kind, b, len+1);
adamc@1113	131
adamc@668	132 memcpy(b->front, s, len);
adamc@668	133 b->front += len;
adamc@672	134 *b->front = 0;
adamc@668	135 }
adamc@667	136
adamc@668	137
adamc@672	138 // Persistent state types
adamc@667	139
adamc@667	140 typedef enum { UNUSED, USED } usage;
adamc@667	141
adamc@667	142 typedef struct client {
adamc@682	143 unsigned id;
adamc@667	144 usage mode;
adamc@682	145 int pass;
adamc@682	146 struct client *next;
adamc@689	147 pthread_mutex_t lock, pull_lock;
adam@1369	148 uw_buffer msgs;
adamc@682	149 int sock;
adamc@863	150 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	151 int (*close)(int fd);
adamc@682	152 time_t last_contact;
adamc@682	153 unsigned n_channels;
adamc@685	154 unsigned refcount;
adamc@1121	155 void *data;
adamc@667	156 } client;
adamc@667	157
adamc@672	158
adamc@672	159 // Persistent client state
adamc@672	160
adamc@682	161 static client *clients, clients_free, *clients_used;
adamc@682	162 static unsigned n_clients;
adamc@667	163
adam@1707	164 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@1113	165 size_t uw_messages_max = SIZE_MAX;
adamc@1113	166 size_t uw_clients_max = SIZE_MAX;
adamc@1113	167
adamc@1121	168 void *uw_init_client_data();
adamc@1121	169 void uw_free_client_data(void *);
adamc@1121	170 void uw_copy_client_data(void dst, void src);
adamc@1121	171
adam@2104	172 static pthread_mutex_t rand_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2104	173
adam@2104	174 static uw_Basis_int my_rand() {
adam@2104	175 pthread_mutex_lock(&rand_mutex);
adam@2105	176 int ret, r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@2104	177 pthread_mutex_unlock(&rand_mutex);
adam@2104	178
adam@2104	179 if (r)
adam@2105	180 return abs(ret);
adam@2104	181 else
adam@2104	182 return -1;
adam@2104	183 }
adam@2104	184
adamc@682	185 static client *new_client() {
adamc@667	186 client *c;
adamc@667	187
adamc@667	188 pthread_mutex_lock(&clients_mutex);
adamc@667	189
adamc@667	190 if (clients_free) {
adamc@667	191 c = clients_free;
adamc@682	192 clients_free = clients_free->next;
adamc@667	193 }
adam@1672	194 else if (n_clients >= uw_clients_max) {
adam@1672	195 pthread_mutex_unlock(&clients_mutex);
adamc@1113	196 return NULL;
adam@1672	197 } else {
adamc@667	198 ++n_clients;
adamc@667	199 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	200 c = malloc(sizeof(client));
adamc@667	201 c->id = n_clients-1;
adamc@682	202 pthread_mutex_init(&c->lock, NULL);
adamc@689	203 pthread_mutex_init(&c->pull_lock, NULL);
adam@1369	204 uw_buffer_init(uw_messages_max, &c->msgs, 0);
adamc@667	205 clients[n_clients-1] = c;
adamc@667	206 }
adamc@667	207
adamc@682	208 pthread_mutex_lock(&c->lock);
adamc@667	209 c->mode = USED;
adam@2104	210 c->pass = my_rand();
adamc@682	211 c->sock = -1;
adamc@682	212 c->last_contact = time(NULL);
adam@1369	213 uw_buffer_reset(&c->msgs);
adamc@682	214 c->n_channels = 0;
adamc@685	215 c->refcount = 0;
adamc@1121	216 c->data = uw_init_client_data();
adamc@682	217 pthread_mutex_unlock(&c->lock);
adamc@682	218
adamc@682	219 c->next = clients_used;
adamc@682	220 clients_used = c;
adamc@667	221
adamc@667	222 pthread_mutex_unlock(&clients_mutex);
adamc@667	223
adamc@667	224 return c;
adamc@667	225 }
adamc@667	226
adamc@685	227 static void use_client(client *c) {
adamc@685	228 pthread_mutex_lock(&c->lock);
adamc@685	229 ++c->refcount;
adamc@685	230 pthread_mutex_unlock(&c->lock);
adamc@689	231 pthread_mutex_lock(&c->pull_lock);
adamc@685	232 }
adamc@685	233
adamc@685	234 static void release_client(client *c) {
adamc@689	235 pthread_mutex_unlock(&c->pull_lock);
adamc@685	236 pthread_mutex_lock(&c->lock);
adamc@685	237 --c->refcount;
adamc@685	238 pthread_mutex_unlock(&c->lock);
adamc@685	239 }
adamc@685	240
adamc@856	241 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adam@1707	242 static pthread_t pruning_thread;
adam@1707	243 static int pruning_thread_initialized = 0;
adamc@667	244
adamc@682	245 static client *find_client(unsigned id) {
adamc@667	246 client *c;
adam@1708	247 int i_am_pruner = pruning_thread_initialized && pthread_equal(pruning_thread, pthread_self());
adam@1708	248
adam@1708	249 if (!i_am_pruner) pthread_mutex_lock(&clients_mutex);
adamc@667	250
adamc@667	251 if (id >= n_clients) {
adam@1708	252 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	253 return NULL;
adamc@667	254 }
adamc@667	255
adamc@667	256 c = clients[id];
adamc@667	257
adam@1708	258 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	259 return c;
adamc@668	260 }
adamc@668	261
adamc@856	262 static char *on_success = "HTTP/1.1 200 OK\r\n";
adam@1409	263 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	264
adamc@856	265 void uw_set_on_success(char *s) {
adamc@856	266 on_success = s;
adamc@856	267 }
adamc@856	268
adam@1552	269 static void chastise(int (send)(int sockfd, const void buf, ssize_t len), int sock) {
adam@1552	270 send(sock, on_success, strlen(on_success));
adam@1552	271 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1552	272 send(sock, "R", 1);
adam@1552	273 close(sock);
adam@1552	274 }
adam@1552	275
adamc@863	276 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	277 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	278 int (*close)(int fd),
adamc@864	279 void *logger_data, uw_logger log_error) {
adamc@682	280 client *c = find_client(id);
adamc@668	281
adamc@668	282 if (c == NULL) {
adam@1552	283 chastise(send, sock);
adamc@864	284 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	285 return;
adamc@667	286 }
adamc@667	287
adamc@682	288 pthread_mutex_lock(&c->lock);
adamc@671	289
adamc@682	290 if (c->mode != USED) {
adamc@682	291 pthread_mutex_unlock(&c->lock);
adam@1552	292 chastise(send, sock);
adamc@864	293 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	294 return;
adamc@667	295 }
adamc@667	296
adamc@682	297 if (pass != c->pass) {
adamc@682	298 pthread_mutex_unlock(&c->lock);
adam@1552	299 chastise(send, sock);
adamc@864	300 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	301 return;
adamc@667	302 }
adamc@667	303
adamc@682	304 if (c->sock != -1) {
adamc@863	305 c->close(c->sock);
adamc@682	306 c->sock = -1;
adamc@682	307 }
adamc@667	308
adamc@682	309 c->last_contact = time(NULL);
adamc@682	310
adam@1369	311 if (uw_buffer_used(&c->msgs) > 0) {
adamc@863	312 send(sock, on_success, strlen(on_success));
adamc@863	313 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1369	314 send(sock, c->msgs.start, uw_buffer_used(&c->msgs));
adam@1369	315 uw_buffer_reset(&c->msgs);
adamc@667	316 close(sock);
adamc@667	317 }
adamc@863	318 else {
adamc@682	319 c->sock = sock;
adamc@863	320 c->send = send;
adamc@863	321 c->close = close;
adamc@863	322 }
adamc@667	323
adamc@682	324 pthread_mutex_unlock(&c->lock);
adamc@667	325 }
adamc@667	326
adamc@682	327 static void free_client(client *c) {
adamc@682	328 c->mode = UNUSED;
adamc@682	329 c->pass = -1;
adamc@667	330
adamc@682	331 c->next = clients_free;
adamc@682	332 clients_free = c;
adamc@667	333 }
adamc@667	334
adamc@682	335 static uw_Basis_channel new_channel(client *c) {
adamc@682	336 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	337 return ch;
adamc@668	338 }
adamc@668	339
adam@1447	340 static void client_send(client c, uw_buffer msg, const char *script, int script_len) {
adamc@685	341 pthread_mutex_lock(&c->lock);
adamc@671	342
adamc@682	343 if (c->sock != -1) {
adamc@863	344 c->send(c->sock, on_success, strlen(on_success));
adamc@863	345 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1447	346 if (script_len > 0) {
adam@1447	347 c->send(c->sock, "E\n", 2);
adam@1447	348 c->send(c->sock, script, script_len);
adam@1447	349 c->send(c->sock, "\n", 1);
adam@1447	350 }
adam@1369	351 c->send(c->sock, msg->start, uw_buffer_used(msg));
adamc@863	352 c->close(c->sock);
adamc@682	353 c->sock = -1;
adam@1665	354 } else if (uw_buffer_append(&c->msgs, msg->start, uw_buffer_used(msg)))
adamc@1113	355 fprintf(stderr, "Client message buffer size exceeded");
adamc@671	356
adamc@685	357 pthread_mutex_unlock(&c->lock);
adamc@668	358 }
adamc@668	359
adamc@668	360
adamc@668	361 // Global entry points
adamc@668	362
adamc@1164	363 extern void uw_global_custom();
adamc@1104	364 extern void uw_init_crypto();
adamc@1104	365
adamc@668	366 void uw_global_init() {
adamc@668	367 clients = malloc(0);
adamc@1104	368
adamc@1164	369 uw_global_custom();
adamc@1104	370 uw_init_crypto();
adamc@1094	371 }
adamc@1094	372
adamc@1094	373 void uw_app_init(uw_app *app) {
adamc@1094	374 app->client_init();
adamc@668	375 }
adamc@668	376
adam@1332	377 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114	378
adamc@668	379
adamc@667	380 // Single-request state
adamc@667	381
adamc@323	382 typedef struct regions {
adamc@323	383 struct regions *next;
adamc@323	384 } regions;
adamc@323	385
adamc@425	386 typedef struct {
adamc@425	387 void (func)(void);
adamc@425	388 void *arg;
adamc@425	389 } cleanup;
adamc@425	390
adamc@671	391 typedef struct {
adamc@682	392 unsigned client;
adam@1369	393 uw_buffer msgs;
adamc@682	394 } delta;
adamc@671	395
adamc@737	396 typedef enum {
adamc@759	397 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	398 } input_kind;
adamc@737	399
adamc@756	400 typedef struct input {
adamc@737	401 input_kind kind;
adamc@737	402 union {
adamc@737	403 char *normal;
adamc@739	404 uw_Basis_file file;
adamc@756	405 struct {
adamc@759	406 struct input fields, parent;
adamc@756	407 } subform;
adamc@759	408 struct {
adamc@759	409 struct input entries, parent;
adamc@759	410 } subforms;
adamc@759	411 struct {
adamc@759	412 struct input fields, next, *parent;
adamc@759	413 } entry;
adamc@737	414 } data;
adamc@737	415 } input;
adamc@737	416
adamc@771	417 typedef struct {
adamc@771	418 void *data;
adam@1327	419 uw_callback commit, rollback;
adam@1327	420 uw_callback_with_retry free;
adamc@771	421 } transactional;
adamc@771	422
adamc@1061	423 typedef struct {
adamc@1061	424 char *name;
adamc@1061	425 void *data;
adamc@1061	426 void (free)(void);
adamc@1061	427 } global;
adamc@1061	428
adamc@311	429 struct uw_context {
adamc@1094	430 uw_app *app;
adam@1446	431 int id;
adamc@1094	432
adamc@854	433 char (get_header)(void , const char );
adamc@854	434 void *get_header_data;
adamc@457	435
adam@1799	436 char (get_env)(void , const char );
adam@1799	437 void *get_env_data;
adam@1799	438
adam@1369	439 uw_buffer outHeaders, page, heap, script;
adam@1451	440 int allowed_to_return_indirectly, returning_indirectly;
adamc@759	441 input inputs, subinputs, *cur_container;
adamc@1094	442 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	443
adam@1446	444 unsigned long long source_count;
adamc@562	445
adamc@272	446 void *db;
adam@1931	447 int transaction_started;
adamc@272	448
adamc@167	449 jmp_buf jmp_buf;
adamc@167	450
adamc@323	451 regions *regions;
adamc@323	452
adamc@425	453 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	454
adamc@1094	455 const char *script_header;
adamc@643	456
adam@2056	457 int needs_push, needs_sig, could_write_db, at_most_one_query;
adamc@693	458
adamc@682	459 size_t n_deltas, used_deltas;
adamc@682	460 delta *deltas;
adamc@671	461
adamc@682	462 client *client;
adamc@682	463
adamc@771	464 transactional *transactionals;
adamc@771	465 size_t n_transactionals, used_transactionals;
adamc@771	466
adamc@1061	467 global *globals;
adamc@1061	468 size_t n_globals;
adamc@1061	469
adamc@1066	470 char *current_url;
adamc@1066	471
adamc@1114	472 int deadline;
adamc@1114	473
adamc@1121	474 void *client_data;
adamc@1121	475
grrwlf@1997	476 uw_loggers *loggers;
adam@1334	477
adam@1386	478 int isPost, hasPostBody;
adam@1347	479 uw_Basis_postBody postBody;
adam@1370	480 uw_Basis_string queryString;
adam@1347	481
adam@1556	482 unsigned nextId;
adam@1556	483
adam@1782	484 int amInitializing;
adam@1782	485
adamc@167	486 char error_message[ERROR_BUF_LEN];
adam@1877	487
adam@1877	488 int usedSig, needsResig;
adam@1949	489
adam@1949	490 char *output_buffer;
adam@1949	491 size_t output_buffer_size;
adam@2073	492
ziv@2204	493 // For caching.
ziv@2204	494 char *recording;
ziv@2220	495
adam@2073	496 int remoteSock;
adamc@117	497 };
adamc@117	498
adamc@1113	499 size_t uw_headers_max = SIZE_MAX;
adamc@1113	500 size_t uw_page_max = SIZE_MAX;
adamc@1113	501 size_t uw_heap_max = SIZE_MAX;
adamc@1113	502 size_t uw_script_max = SIZE_MAX;
adamc@1113	503
grrwlf@1997	504 uw_context uw_init(int id, uw_loggers *lg) {
adamc@311	505 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	506
adamc@1094	507 ctx->app = NULL;
adam@1446	508 ctx->id = id;
adamc@1094	509
adamc@854	510 ctx->get_header = NULL;
adamc@854	511 ctx->get_header_data = NULL;
adamc@457	512
adam@1799	513 ctx->get_env = NULL;
adam@1799	514 ctx->get_env_data = NULL;
adam@1799	515
adam@1413	516 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413	517 ctx->outHeaders.start[0] = 0;
adam@1413	518 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413	519 ctx->page.start[0] = 0;
adam@1451	520 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	521 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369	522 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667	523 ctx->script.start[0] = 0;
adamc@136	524
adamc@1094	525 ctx->inputs = malloc(0);
adamc@759	526 ctx->cur_container = NULL;
adamc@756	527 ctx->subinputs = malloc(0);
adamc@1094	528 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	529
adamc@272	530 ctx->db = NULL;
adam@1931	531 ctx->transaction_started = 0;
adamc@272	532
adamc@323	533 ctx->regions = NULL;
adamc@323	534
adamc@425	535 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	536
adamc@643	537 ctx->script_header = "";
adamc@693	538 ctx->needs_push = 0;
adamc@736	539 ctx->needs_sig = 0;
adam@1936	540 ctx->could_write_db = 1;
adam@2056	541 ctx->at_most_one_query = 0;
adamc@1104	542
adamc@565	543 ctx->source_count = 0;
adamc@562	544
adamc@682	545 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	546 ctx->deltas = malloc(0);
adamc@671	547
adamc@700	548 ctx->client = NULL;
adamc@700	549
adamc@700	550 ctx->error_message[0] = 0;
adamc@700	551
adamc@771	552 ctx->transactionals = malloc(0);
adamc@771	553 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	554
adamc@1061	555 ctx->globals = malloc(0);
adamc@1061	556 ctx->n_globals = 0;
adamc@1061	557
adamc@1066	558 ctx->current_url = "";
adamc@1066	559
adamc@1114	560 ctx->deadline = INT_MAX;
adamc@1114	561
adamc@1121	562 ctx->client_data = uw_init_client_data();
adamc@1121	563
grrwlf@1997	564 ctx->loggers = lg;
adam@1334	565
adam@1386	566 ctx->isPost = ctx->hasPostBody = 0;
adam@1347	567
adam@1370	568 ctx->queryString = NULL;
adam@1370	569
adam@1556	570 ctx->nextId = 0;
adam@1556	571
adam@1782	572 ctx->amInitializing = 0;
adam@1782	573
adam@1877	574 ctx->usedSig = 0;
adam@1877	575 ctx->needsResig = 0;
adam@1877	576
adam@1949	577 ctx->output_buffer = malloc(1);
adam@1949	578 ctx->output_buffer_size = 1;
adam@1949	579
ziv@2204	580 ctx->recording = 0;
ziv@2204	581
adam@2073	582 ctx->remoteSock = -1;
adam@2073	583
adamc@117	584 return ctx;
adamc@106	585 }
adamc@106	586
adamc@1113	587 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	588
adamc@1121	589 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	590 return ctx->app;
adamc@1121	591 }
adamc@1121	592
adamc@1113	593 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	594 ctx->app = app;
adamc@1094	595
adamc@1105	596 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	597 if (app->inputs_len > uw_inputs_max)
adamc@1113	598 return 1;
adamc@1113	599
adamc@1094	600 ctx->sz_inputs = app->inputs_len;
adamc@1094	601 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	602 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	603 }
adamc@1134	604
adamc@1134	605 return 0;
adamc@1094	606 }
adamc@1094	607
adamc@1121	608 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	609 uw_copy_client_data(ctx->client_data, data);
adamc@1121	610 }
adamc@1121	611
adamc@311	612 void uw_set_db(uw_context ctx, void *db) {
adamc@272	613 ctx->db = db;
adamc@272	614 }
adamc@272	615
adamc@311	616 void *uw_get_db(uw_context ctx) {
adamc@272	617 return ctx->db;
adamc@272	618 }
adamc@272	619
grrwlf@1997	620
grrwlf@1997	621 uw_loggers* uw_get_loggers(struct uw_context *ctx) {
grrwlf@1997	622 return ctx->loggers;
grrwlf@1997	623 }
grrwlf@1997	624
adamc@311	625 void uw_free(uw_context ctx) {
adamc@671	626 size_t i;
adamc@671	627
adam@1369	628 uw_buffer_free(&ctx->outHeaders);
adam@1369	629 uw_buffer_free(&ctx->script);
adam@1369	630 uw_buffer_free(&ctx->page);
adam@1369	631 uw_buffer_free(&ctx->heap);
adamc@144	632 free(ctx->inputs);
adamc@756	633 free(ctx->subinputs);
adamc@425	634 free(ctx->cleanup);
adamc@771	635 free(ctx->transactionals);
adamc@1121	636 uw_free_client_data(ctx->client_data);
adamc@671	637
adamc@682	638 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	639 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	640 free(ctx->deltas);
adamc@671	641
adamc@1061	642 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	643 if (ctx->globals[i].free)
adamc@1089	644 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	645 free(ctx->globals);
adamc@1061	646
adam@1949	647 free(ctx->output_buffer);
adam@1949	648
adamc@136	649 free(ctx);
adamc@136	650 }
adamc@136	651
adamc@562	652 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	653 uw_buffer_reset(&ctx->outHeaders);
adam@1369	654 uw_buffer_reset(&ctx->script);
adamc@667	655 ctx->script.start[0] = 0;
adam@1369	656 uw_buffer_reset(&ctx->page);
adam@1451	657 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	658 uw_buffer_reset(&ctx->heap);
adamc@323	659 ctx->regions = NULL;
adamc@425	660 ctx->cleanup_front = ctx->cleanup;
adamc@682	661 ctx->used_deltas = 0;
adamc@682	662 ctx->client = NULL;
adamc@759	663 ctx->cur_container = NULL;
adamc@771	664 ctx->used_transactionals = 0;
adamc@1117	665 ctx->script_header = "";
adam@1370	666 ctx->queryString = NULL;
adam@1556	667 ctx->nextId = 0;
adam@1782	668 ctx->amInitializing = 0;
adam@1877	669 ctx->usedSig = 0;
adam@1877	670 ctx->needsResig = 0;
adam@2073	671 ctx->remoteSock = -1;
adamc@167	672 }
adamc@167	673
adamc@562	674 void uw_reset_keep_request(uw_context ctx) {
adamc@562	675 uw_reset_keep_error_message(ctx);
adamc@562	676 ctx->error_message[0] = 0;
adamc@167	677 }
adamc@167	678
adamc@311	679 void uw_reset(uw_context ctx) {
adamc@311	680 uw_reset_keep_request(ctx);
adamc@1105	681 if (ctx->app)
adamc@1105	682 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	683 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461	684 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adam@1943	685 ctx->transaction_started = 0;
adamc@144	686 }
adamc@144	687
adamc@311	688 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	689 int r = setjmp(ctx->jmp_buf);
adamc@272	690
adamc@1105	691 if (r == 0 && ctx->app)
adamc@1094	692 ctx->app->db_init(ctx);
adamc@272	693
adamc@272	694 return r;
adamc@272	695 }
adamc@272	696
adamc@1118	697 void uw_close(uw_context ctx) {
adamc@1118	698 ctx->app->db_close(ctx);
adamc@1118	699 }
adamc@1118	700
adam@1446	701 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	702 return ctx->get_header(ctx->get_header_data, h);
adam@1446	703 }
adam@1446	704
adamc@854	705 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	706 ctx->get_header = get_header;
adamc@854	707 ctx->get_header_data = get_header_data;
adamc@742	708 }
adamc@742	709
adam@1799	710 void uw_set_env(uw_context ctx, char (get_env)(void , const char ), void *get_env_data) {
adam@1799	711 ctx->get_env = get_env;
adam@1799	712 ctx->get_env_data = get_env_data;
adam@1799	713 }
adam@1799	714
adamc@801	715 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	716 va_list ap;
adamc@801	717 va_start(ap, fmt);
adamc@801	718
adamc@801	719 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	720 }
adamc@801	721
adamc@1131	722 int uw_has_error(uw_context ctx) {
adamc@1131	723 return ctx->error_message[0] != 0;
adamc@1131	724 }
adamc@1131	725
adamc@311	726 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	727 cleanup *cl;
adamc@425	728
adamc@167	729 va_list ap;
adamc@167	730 va_start(ap, fmt);
adamc@167	731
adamc@167	732 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	733
adamc@425	734 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	735 cl->func(cl->arg);
adamc@425	736
adamc@425	737 ctx->cleanup_front = ctx->cleanup;
adamc@425	738
adamc@190	739 longjmp(ctx->jmp_buf, fk);
adamc@167	740 }
adamc@167	741
adamc@1113	742 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	743
adamc@425	744 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	745 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	746 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	747 if (len == 0)
adamc@425	748 newLen = 1;
adamc@425	749 else
adamc@428	750 newLen = len * 2;
adamc@1113	751
adamc@1134	752 if (newLen > uw_cleanup_max) {
adamc@1113	753 if (len+1 <= uw_cleanup_max)
adamc@1113	754 newLen = uw_cleanup_max;
adamc@1113	755 else
adamc@1113	756 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	757 }
adamc@1113	758
adamc@470	759 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	760 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	761 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	762 }
adamc@425	763
adamc@425	764 ctx->cleanup_front->func = func;
adamc@425	765 ctx->cleanup_front->arg = arg;
adamc@425	766 ++ctx->cleanup_front;
adamc@425	767 }
adamc@425	768
adam@1444	769 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	770
adamc@682	771 void uw_login(uw_context ctx) {
adam@1942	772 char id_s, pass_s;
adam@1942	773
adam@1942	774 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adam@1942	775 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adam@1942	776 unsigned id = atoi(id_s);
adam@1942	777 int pass = atoi(pass_s);
adam@1942	778 client *c = find_client(id);
adam@1942	779
adam@1942	780 if (c == NULL)
adam@1942	781 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	782 else {
adamc@685	783 use_client(c);
adamc@682	784 ctx->client = c;
adam@1942	785
adam@1942	786 if (c->mode != USED)
adam@1942	787 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adam@1942	788 if (c->pass != pass)
adam@1942	789 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@864	790 }
adam@1942	791 } else if (ctx->needs_push) {
adam@1942	792 client *c = new_client();
adam@1942	793
adam@1942	794 if (c == NULL)
adam@1942	795 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adam@1942	796
adam@1942	797 use_client(c);
adam@1942	798 uw_copy_client_data(c->data, ctx->client_data);
adam@1942	799 ctx->client = c;
adamc@682	800 }
adamc@682	801 }
adamc@682	802
adamc@671	803 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	804 int r = setjmp(ctx->jmp_buf);
adamc@671	805
adam@1931	806 if (r == 0)
adam@1931	807 ctx->app->handle(ctx, path);
adam@1931	808
adam@1931	809 return r;
adam@1931	810 }
adam@1931	811
adam@1931	812 void uw_ensure_transaction(uw_context ctx) {
adam@2056	813 if (!ctx->transaction_started && !ctx->at_most_one_query) {
adam@1936	814 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adamc@671	815 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1931	816 ctx->transaction_started = 1;
adamc@671	817 }
adamc@671	818 }
adamc@671	819
adamc@772	820 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	821 if (ctx->client == NULL)
adamc@682	822 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	823
adamc@682	824 return ctx->client->id;
adamc@682	825 }
adamc@682	826
adamc@425	827 void uw_pop_cleanup(uw_context ctx) {
adamc@425	828 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	829 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	830
adamc@425	831 --ctx->cleanup_front;
adamc@425	832 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	833 }
adamc@425	834
adamc@311	835 char *uw_error_message(uw_context ctx) {
adamc@167	836 return ctx->error_message;
adamc@167	837 }
adamc@167	838
adamc@1115	839 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	840 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	841 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	842 }
adamc@1115	843
adamc@759	844 static input *INP(uw_context ctx) {
adamc@759	845 if (ctx->cur_container == NULL)
adamc@759	846 return ctx->inputs;
adamc@759	847 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	848 return ctx->cur_container->data.subform.fields;
adamc@759	849 else if (ctx->cur_container->kind == ENTRY)
adamc@759	850 return ctx->cur_container->data.entry.fields;
adamc@759	851 else
adamc@760	852 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	853 }
adamc@759	854
adamc@760	855 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	856 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	857 *ptr += new_start - old_start;
adamc@760	858 }
adamc@760	859
adamc@760	860 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	861 switch (x->kind) {
adamc@759	862 case SUBFORM:
adamc@760	863 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	864 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	865 break;
adamc@759	866 case SUBFORMS:
adamc@760	867 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	868 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	869 break;
adamc@759	870 case ENTRY:
adamc@760	871 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	872 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	873 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	874 break;
adamc@1134	875 default:
adamc@1134	876 break;
phurst@1981	877 }
adamc@759	878 }
adamc@759	879
adamc@1113	880 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	881
adamc@759	882 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	883 size_t i;
adamc@759	884 input *r;
adamc@759	885
adamc@759	886 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	887 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	888 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	889
adamc@759	890 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	891
adamc@760	892 if (ctx->subinputs != new_subinputs) {
adamc@760	893 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	894 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	895 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	896 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	897
adamc@760	898 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	899
adamc@760	900 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	901 ctx->subinputs = new_subinputs;
adamc@760	902 }
adamc@759	903 }
adamc@759	904
adamc@759	905 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	906
adamc@759	907 for (i = 0; i < len; ++i)
adam@1474	908 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	909
adamc@759	910 return r;
adamc@759	911 }
adamc@756	912
adamc@801	913 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	914 //printf("Input name %s\n", name);
adamc@1038	915
adamc@756	916 if (!strcasecmp(name, ".b")) {
adamc@1094	917 int n = ctx->app->input_num(value);
adamc@756	918 input *inps;
adamc@756	919
adamc@801	920 if (n < 0) {
adam@1444	921 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	922 return -1;
adamc@801	923 }
adamc@801	924
adamc@1094	925 if (n >= ctx->app->inputs_len) {
adam@1444	926 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	927 return -1;
adamc@801	928 }
adamc@756	929
adamc@1094	930 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	931
adamc@759	932 INP(ctx)[n].kind = SUBFORM;
adamc@759	933 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	934 INP(ctx)[n].data.subform.fields = inps;
adamc@759	935 ctx->cur_container = &INP(ctx)[n];
adamc@756	936 } else if (!strcasecmp(name, ".e")) {
adamc@756	937 input *tmp;
adamc@756	938
adamc@801	939 if (ctx->cur_container == NULL) {
adamc@801	940 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	941 return -1;
adamc@801	942 }
adamc@756	943
adamc@759	944 tmp = ctx->cur_container;
adamc@759	945 switch (tmp->kind) {
adamc@759	946 case SUBFORM:
adamc@759	947 ctx->cur_container = tmp->data.subform.parent;
adamc@759	948 tmp->data.subform.parent = NULL;
adamc@759	949 break;
adamc@759	950 case SUBFORMS:
adamc@759	951 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	952 tmp->data.subforms.parent = NULL;
adamc@759	953 break;
adamc@759	954 case ENTRY:
adamc@759	955 ctx->cur_container = tmp->data.entry.parent;
adamc@759	956 break;
adamc@759	957 default:
adamc@801	958 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	959 return -1;
adamc@759	960 }
adamc@759	961 } else if (!strcasecmp(name, ".s")) {
adamc@1094	962 int n = ctx->app->input_num(value);
adamc@759	963
adamc@801	964 if (n < 0) {
adam@1444	965 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	966 return -1;
adamc@801	967 }
adamc@801	968
adamc@1094	969 if (n >= ctx->app->inputs_len) {
adam@1444	970 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	971 return -1;
adamc@801	972 }
adamc@759	973
adamc@759	974 INP(ctx)[n].kind = SUBFORMS;
adamc@759	975 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	976 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	977 ctx->cur_container = &INP(ctx)[n];
adamc@759	978 } else if (!strcasecmp(name, ".i")) {
adamc@759	979 input *inps;
adamc@759	980
adamc@801	981 if (!ctx->cur_container) {
adamc@801	982 uw_set_error(ctx, "New entry without container");
adamc@801	983 return -1;
adamc@801	984 }
adamc@801	985
adamc@801	986 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	987 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	988 return -1;
adamc@801	989 }
adamc@759	990
adamc@1094	991 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	992
adamc@759	993 inps->kind = ENTRY;
adamc@759	994 inps->data.entry.parent = ctx->cur_container;
adamc@759	995 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	996 ctx->cur_container->data.subforms.entries = inps;
adamc@759	997
adamc@759	998 inps->data.entry.fields = inps+1;
adamc@759	999 ctx->cur_container = inps;
adamc@756	1000 } else {
adamc@1094	1001 int n = ctx->app->input_num(name);
adamc@756	1002
adam@1384	1003 if (n < 0)
adam@1384	1004 return 0;
adamc@801	1005
adamc@1094	1006 if (n >= ctx->app->inputs_len) {
adam@1444	1007 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	1008 return -1;
adamc@801	1009 }
adamc@756	1010
adamc@756	1011 INP(ctx)[n].kind = NORMAL;
adamc@756	1012 INP(ctx)[n].data.normal = value;
adamc@756	1013 }
adamc@801	1014
adamc@801	1015 return 0;
adamc@144	1016 }
adamc@144	1017
adamc@311	1018 char *uw_get_input(uw_context ctx, int n) {
adamc@169	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 NULL;
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@138	1040 }
adamc@138	1041
adamc@311	1042 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	1043 if (n < 0)
adamc@311	1044 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1045 if (n >= ctx->app->inputs_len)
adamc@311	1046 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1047
adamc@756	1048 switch (INP(ctx)[n].kind) {
adamc@737	1049 case UNSET:
adamc@737	1050 return "";
adamc@739	1051 case FIL:
adamc@739	1052 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1053 case SUBFORM:
adamc@756	1054 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1055 case SUBFORMS:
adamc@759	1056 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1057 case ENTRY:
adamc@759	1058 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1059 case NORMAL:
adamc@756	1060 return INP(ctx)[n].data.normal;
adamc@737	1061 default:
adamc@737	1062 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1063 }
adamc@737	1064 }
adamc@737	1065
adamc@801	1066 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1067 int n = ctx->app->input_num(name);
adamc@737	1068
adamc@801	1069 if (n < 0) {
adam@2054	1070 uw_set_error(ctx, "Bad file input name");
adamc@801	1071 return -1;
adamc@801	1072 }
adamc@801	1073
adamc@1094	1074 if (n >= ctx->app->inputs_len) {
adam@2054	1075 uw_set_error(ctx, "For file input name, index %d is out of range", n);
adamc@801	1076 return -1;
adamc@801	1077 }
adamc@737	1078
adamc@739	1079 ctx->inputs[n].kind = FIL;
adamc@739	1080 ctx->inputs[n].data.file = f;
adamc@801	1081
adamc@801	1082 return 0;
adamc@737	1083 }
adamc@737	1084
adamc@739	1085 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1086
adamc@739	1087 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1088 if (n < 0)
adamc@737	1089 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1090 if (n >= ctx->app->inputs_len)
adamc@737	1091 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1092
adamc@756	1093 switch (INP(ctx)[n].kind) {
adamc@737	1094 case UNSET:
adamc@737	1095 {
adamc@739	1096 char *data = uw_malloc(ctx, 0);
adamc@740	1097 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1098 return f;
adamc@737	1099 }
adamc@739	1100 case FIL:
adamc@756	1101 return INP(ctx)[n].data.file;
adamc@737	1102 case NORMAL:
adamc@737	1103 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1104 case SUBFORM:
adamc@756	1105 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1106 case SUBFORMS:
adamc@759	1107 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1108 case ENTRY:
adamc@759	1109 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1110 default:
adamc@737	1111 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1112 }
adamc@190	1113 }
adamc@190	1114
adamc@756	1115 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1116 if (n < 0)
adamc@756	1117 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1118 if (n >= ctx->app->inputs_len)
adamc@756	1119 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1120
adamc@756	1121 switch (INP(ctx)[n].kind) {
adamc@756	1122 case UNSET:
adamc@756	1123 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1124 case FIL:
adamc@756	1125 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1126 case NORMAL:
adamc@756	1127 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1128 case SUBFORMS:
adamc@759	1129 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1130 case ENTRY:
adamc@759	1131 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1132 case SUBFORM:
adamc@759	1133 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1134 ctx->cur_container = &INP(ctx)[n];
adamc@756	1135 return;
adamc@756	1136 default:
adamc@756	1137 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1138 }
adamc@756	1139 }
adamc@756	1140
adamc@756	1141 void uw_leave_subform(uw_context ctx) {
adamc@756	1142 input *tmp;
adamc@756	1143
adamc@759	1144 if (ctx->cur_container == NULL)
adamc@756	1145 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1146
adamc@759	1147 tmp = ctx->cur_container;
adamc@759	1148 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1149 tmp->data.subform.parent = NULL;
adamc@759	1150 }
adamc@759	1151
adamc@759	1152 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1153 input *inps;
adamc@759	1154
adamc@759	1155 if (n < 0)
adamc@759	1156 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1157 if (n >= ctx->app->inputs_len)
adamc@759	1158 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1159
adamc@759	1160 switch (INP(ctx)[n].kind) {
adamc@759	1161 case UNSET:
adamc@759	1162 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1163 case FIL:
adamc@759	1164 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1165 case NORMAL:
adamc@759	1166 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1167 case SUBFORM:
adamc@759	1168 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1169 case ENTRY:
adamc@759	1170 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1171 case SUBFORMS:
adamc@759	1172 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1173 if (inps) {
adamc@759	1174 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1175 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1176 return 1;
adamc@759	1177 } else
adamc@759	1178 return 0;
adamc@759	1179 default:
adamc@759	1180 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1181 }
adamc@759	1182 }
adamc@759	1183
adamc@759	1184 int uw_next_entry(uw_context ctx) {
adamc@759	1185 if (ctx->cur_container == NULL)
adamc@759	1186 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1187
adamc@759	1188 switch (ctx->cur_container->kind) {
adamc@759	1189 case UNSET:
adamc@759	1190 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1191 case FIL:
adamc@759	1192 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1193 case NORMAL:
adamc@759	1194 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1195 case SUBFORM:
adamc@759	1196 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1197 case SUBFORMS:
adamc@759	1198 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1199 case ENTRY:
adamc@759	1200 if (ctx->cur_container->data.entry.next) {
adamc@759	1201 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1202 return 1;
adamc@759	1203 } else {
adamc@759	1204 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1205 return 0;
adamc@759	1206 }
adamc@759	1207 default:
adamc@759	1208 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1209 }
adamc@756	1210 }
adamc@756	1211
adamc@643	1212 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1213 ctx->script_header = s;
adamc@643	1214 }
adamc@643	1215
adamc@1094	1216 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1217 return ctx->app->url_prefix;
adamc@667	1218 }
adamc@667	1219
adamc@693	1220 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1221 ctx->needs_push = n;
adamc@693	1222 }
adamc@693	1223
adamc@736	1224 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1225 ctx->needs_sig = n;
adamc@736	1226 }
adamc@736	1227
adam@1936	1228 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936	1229 ctx->could_write_db = n;
adam@1936	1230 }
adam@1936	1231
adam@2056	1232 void uw_set_at_most_one_query(uw_context ctx, int n) {
adam@2056	1233 ctx->at_most_one_query = n;
adam@2056	1234 }
adam@2056	1235
adamc@667	1236
adam@1369	1237 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1238 if (b->back - b->front < extra) {
adamc@666	1239 size_t desired = b->front - b->start + extra, next;
adamc@136	1240 char *new_heap;
adamc@136	1241
adamc@666	1242 next = b->back - b->start;
adamc@317	1243 if (next == 0)
adamc@317	1244 next = 1;
adamc@317	1245 for (; next < desired; next *= 2);
adamc@136	1246
adamc@1134	1247 if (next > b->max) {
adamc@1113	1248 if (desired <= b->max)
adamc@1113	1249 next = desired;
adamc@1113	1250 else
adamc@1113	1251 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1252 }
adamc@1113	1253
adamc@666	1254 new_heap = realloc(b->start, next);
adamc@666	1255 b->front = new_heap + (b->front - b->start);
adamc@666	1256 b->back = new_heap + next;
adamc@136	1257
adamc@667	1258 if (new_heap != b->start) {
adamc@666	1259 b->start = new_heap;
adam@1389	1260 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1261 }
adamc@136	1262
adamc@666	1263 b->start = new_heap;
adamc@136	1264 }
adamc@136	1265 }
adamc@136	1266
adamc@832	1267 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1268 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1269 }
adamc@666	1270
adamc@832	1271 char *uw_heap_front(uw_context ctx) {
adamc@832	1272 return ctx->heap.front;
adamc@832	1273 }
adamc@832	1274
adamc@832	1275 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1276 ctx->heap.front = fr;
adamc@832	1277 }
adamc@832	1278
adam@1782	1279 void uw_begin_initializing(uw_context ctx) {
adam@1782	1280 ctx->amInitializing = 1;
adam@1782	1281 }
adam@1782	1282
adam@1782	1283 void uw_end_initializing(uw_context ctx) {
adam@1782	1284 ctx->amInitializing = 0;
adam@1782	1285 }
adam@1782	1286
adam@2013	1287 static void align_heap(uw_context ctx) {
adam@2013	1288 size_t posn = ctx->heap.front - ctx->heap.start;
adam@2013	1289
adam@2017	1290 if (posn % sizeof(void *) != 0) {
adam@2017	1291 size_t bump = sizeof(void ) - posn % sizeof(void );
adam@2013	1292 uw_check_heap(ctx, bump);
adam@2013	1293 ctx->heap.front += bump;
adam@2013	1294 }
adam@2013	1295 }
adam@2013	1296
adamc@311	1297 void *uw_malloc(uw_context ctx, size_t len) {
adam@2013	1298 // On some architectures, it's important that all word-sized memory accesses
adam@2013	1299 // be to word-aligned addresses, so we'll do a little bit of extra work here
adam@2013	1300 // in anticipation of a possible word-aligned access to the address we'll
adam@2013	1301 // return.
adam@2013	1302
adamc@136	1303 void *result;
adamc@136	1304
adam@1782	1305 if (ctx->amInitializing) {
adam@2017	1306 int error = posix_memalign(&result, sizeof(void *), len);
adam@2013	1307
adam@2013	1308 if (!error)
adam@1782	1309 return result;
adam@1782	1310 else
adam@2013	1311 uw_error(ctx, FATAL, "uw_malloc: posix_memalign() returns %d", error);
adam@1782	1312 } else {
adam@2013	1313 align_heap(ctx);
adam@2013	1314
adam@1782	1315 uw_check_heap(ctx, len);
adam@1782	1316
adam@1782	1317 result = ctx->heap.front;
adam@1782	1318 ctx->heap.front += len;
adam@1782	1319 return result;
adam@1782	1320 }
adamc@117	1321 }
adamc@117	1322
adamc@323	1323 void uw_begin_region(uw_context ctx) {
adam@2013	1324 align_heap(ctx);
adam@2013	1325
adamc@666	1326 regions r = (regions ) ctx->heap.front;
adamc@323	1327
adamc@323	1328 uw_check_heap(ctx, sizeof(regions));
adamc@323	1329
adamc@666	1330 ctx->heap.front += sizeof(regions);
adamc@323	1331
adamc@323	1332 r->next = ctx->regions;
adamc@323	1333 ctx->regions = r;
adamc@323	1334 }
adamc@323	1335
adamc@323	1336 void uw_end_region(uw_context ctx) {
adamc@323	1337 regions *r = ctx->regions;
adamc@323	1338
adamc@323	1339 if (r == NULL)
adamc@323	1340 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1341
adamc@666	1342 ctx->heap.front = (char *) r;
adamc@323	1343 ctx->regions = r->next;
adamc@323	1344 }
adamc@323	1345
adamc@324	1346 void uw_memstats(uw_context ctx) {
adam@1369	1347 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1348 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1349 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1350 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1351 }
adamc@324	1352
adam@1915	1353 int uw_pagelen(uw_context ctx) {
adam@1915	1354 return ctx->page.front - ctx->page.start;
adam@1915	1355 }
adam@1915	1356
adamc@311	1357 int uw_send(uw_context ctx, int sock) {
adam@1949	1358 size_t target_length = (ctx->outHeaders.front - ctx->outHeaders.start) + 2 + (ctx->page.front - ctx->page.start);
adam@1949	1359
adam@1949	1360 if (ctx->output_buffer_size < target_length) {
adam@1949	1361 do {
adam@1949	1362 ctx->output_buffer_size *= 2;
adam@1949	1363 } while (ctx->output_buffer_size < target_length);
adam@1949	1364 ctx->output_buffer = realloc(ctx->output_buffer, ctx->output_buffer_size);
adam@1949	1365 }
adam@1949	1366
adam@1949	1367 memcpy(ctx->output_buffer, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adam@1949	1368 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start), "\r\n", 2);
adam@1949	1369 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start) + 2, ctx->page.start, ctx->page.front - ctx->page.start);
adam@1949	1370
adam@1949	1371 return uw_really_send(sock, ctx->output_buffer, target_length);
adamc@462	1372 }
adamc@462	1373
adamc@856	1374 int uw_print(uw_context ctx, int fd) {
adamc@856	1375 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1376
adamc@856	1377 if (n < 0)
adamc@856	1378 return n;
adamc@856	1379
adamc@856	1380 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1381
adamc@856	1382 if (n < 0)
adamc@856	1383 return n;
adamc@856	1384
adamc@856	1385 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1386 }
adamc@856	1387
adamc@860	1388 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1389 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1390
adamc@860	1391 if (n < 0)
adamc@860	1392 return n;
adamc@860	1393
adamc@860	1394 n = output(data, "\r\n", 2);
adamc@860	1395
adamc@860	1396 if (n < 0)
adamc@860	1397 return n;
adamc@860	1398
adamc@860	1399 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1400 }
adamc@860	1401
adamc@462	1402 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1403 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1404 }
adamc@462	1405
adamc@462	1406 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1407 int len = strlen(s);
adamc@462	1408
adamc@462	1409 uw_check_headers(ctx, len + 1);
adamc@666	1410 strcpy(ctx->outHeaders.front, s);
adamc@666	1411 ctx->outHeaders.front += len;
adamc@562	1412 }
adamc@562	1413
adam@1934	1414 int uw_has_contentLength(uw_context ctx) {
adam@1934	1415 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934	1416 }
adam@1934	1417
adamc@1110	1418 void uw_clear_headers(uw_context ctx) {
adam@1369	1419 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1420 }
adamc@1110	1421
adam@1932	1422 void uw_Basis_clear_page(uw_context ctx) {
adam@1932	1423 uw_buffer_reset(&ctx->page);
adam@1932	1424 }
adam@1932	1425
adamc@562	1426 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1427 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1428 }
adamc@562	1429
adamc@562	1430 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1431 int len = strlen(s);
adamc@562	1432
adamc@562	1433 uw_check_script(ctx, len + 1);
adamc@666	1434 strcpy(ctx->script.front, s);
adamc@666	1435 ctx->script.front += len;
adamc@562	1436 }
adamc@562	1437
adam@1446	1438 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1439 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1440 uw_write_script(ctx, "sig=\"");
adam@1671	1441 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1442 uw_write_script(ctx, "\";");
adam@1671	1443 }
adam@1671	1444
adam@1446	1445 return ctx->script.start;
adam@1446	1446 }
adam@1446	1447
adamc@695	1448 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1449 if (s[0] == 0)
adamc@695	1450 return "";
adamc@695	1451 else {
adamc@695	1452 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1453 sprintf(r, " onload='%s'", s);
adamc@695	1454 return r;
adamc@695	1455 }
adamc@695	1456 }
adamc@695	1457
adamc@1042	1458 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1459 if (ctx->script_header[0] == 0)
adamc@1042	1460 return "";
adamc@1042	1461 else {
vshabanoff@1763	1462 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763	1463 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042	1464 return r;
adamc@1042	1465 }
adamc@1042	1466 }
adamc@1042	1467
adamc@694	1468 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1469 if (ctx->client == NULL) {
adamc@736	1470 if (ctx->needs_sig) {
adamc@1094	1471 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1472 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1473 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1474 return r;
adamc@736	1475 }
adamc@736	1476 else
adamc@736	1477 return "";
adamc@736	1478 } else {
adamc@1094	1479 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1480 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1481 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1482 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1483 (ctx->isPost ? "true" : "false"),
adamc@682	1484 ctx->client->id,
adamc@682	1485 ctx->client->pass,
adamc@1094	1486 ctx->app->url_prefix,
adamc@1094	1487 ctx->app->timeout,
adamc@736	1488 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1489 sig,
adamc@736	1490 ctx->needs_sig ? "\";" : "");
adamc@679	1491 return r;
adamc@668	1492 }
adamc@667	1493 }
adamc@667	1494
adamc@574	1495 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1496 char r, s2;
adamc@574	1497
adam@1446	1498 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1499
adamc@666	1500 r = s2 = ctx->heap.front;
adamc@574	1501 *s2++ = '"';
adamc@574	1502
adamc@574	1503 for (; *s; s++) {
adam@1286	1504 unsigned char c = *s;
adamc@574	1505
adamc@574	1506 switch (c) {
adamc@574	1507 case '"':
adamc@574	1508 strcpy(s2, "\\\"");
adamc@574	1509 s2 += 2;
adamc@574	1510 break;
adamc@1027	1511 case '\'':
adamc@1027	1512 strcpy(s2, "\\047");
adamc@1027	1513 s2 += 4;
adamc@1027	1514 break;
adamc@574	1515 case '\\':
adamc@574	1516 strcpy(s2, "\\\\");
adamc@574	1517 s2 += 2;
adamc@574	1518 break;
adam@1457	1519 case '<':
adam@1457	1520 strcpy(s2, "\\074");
adam@1457	1521 s2 += 4;
adam@1457	1522 break;
adamc@574	1523 default:
adam@1286	1524 if (isprint((int)c) \|\| c >= 128)
adamc@574	1525 *s2++ = c;
adamc@574	1526 else {
adam@1429	1527 sprintf(s2, "\\%03o", c);
adamc@574	1528 s2 += 4;
adamc@574	1529 }
adamc@574	1530 }
adamc@574	1531 }
adamc@574	1532
adamc@574	1533 strcpy(s2, "\"");
adamc@910	1534 ctx->heap.front = s2 + 2;
adamc@574	1535 return r;
adamc@574	1536 }
adamc@574	1537
adam@1286	1538 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1539 unsigned char c = c1;
adamc@1025	1540 char r, s2;
adamc@1025	1541
adam@1446	1542 uw_check_heap(ctx, 7);
adamc@1025	1543
adamc@1025	1544 r = s2 = ctx->heap.front;
adamc@1025	1545 *s2++ = '"';
adamc@1025	1546
adamc@1025	1547 switch (c) {
adamc@1025	1548 case '"':
adamc@1025	1549 strcpy(s2, "\\\"");
adamc@1025	1550 s2 += 2;
adamc@1025	1551 break;
adamc@1027	1552 case '\'':
adamc@1027	1553 strcpy(s2, "\\047");
adamc@1027	1554 s2 += 4;
adamc@1027	1555 break;
adamc@1025	1556 case '\\':
adamc@1025	1557 strcpy(s2, "\\\\");
adamc@1025	1558 s2 += 2;
adamc@1025	1559 break;
adam@1457	1560 case '<':
adam@1457	1561 strcpy(s2, "\\074");
adam@1457	1562 s2 += 4;
adam@1457	1563 break;
adamc@1025	1564 default:
adam@1286	1565 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1566 *s2++ = c;
adamc@1025	1567 else {
adam@1429	1568 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1569 s2 += 4;
adamc@1025	1570 }
adamc@1025	1571 }
adamc@1025	1572
adamc@1025	1573 strcpy(s2, "\"");
adamc@1025	1574 ctx->heap.front = s2 + 2;
adamc@1025	1575 return r;
adamc@1025	1576 }
adamc@1025	1577
adamc@574	1578 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1579 char r, s2;
adamc@574	1580
adam@1446	1581 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1582
adamc@666	1583 r = s2 = ctx->script.front;
adamc@574	1584 *s2++ = '"';
adamc@574	1585
adamc@574	1586 for (; *s; s++) {
adam@1286	1587 unsigned char c = *s;
adamc@574	1588
adamc@574	1589 switch (c) {
adamc@577	1590 case '\'':
adamc@1027	1591 strcpy(s2, "\\");
adamc@574	1592 s2 += 2;
adamc@574	1593 break;
adamc@574	1594 case '\\':
adamc@574	1595 strcpy(s2, "\\\\");
adamc@574	1596 s2 += 2;
adamc@574	1597 break;
adam@1457	1598 case '<':
adam@1457	1599 strcpy(s2, "\\074");
adam@1457	1600 s2 += 4;
adam@1457	1601 break;
adamc@574	1602 default:
adam@1286	1603 if (isprint((int)c) \|\| c >= 128)
adamc@574	1604 *s2++ = c;
adamc@574	1605 else {
adam@1429	1606 sprintf(s2, "\\%03o", c);
adamc@574	1607 s2 += 4;
adamc@574	1608 }
adamc@574	1609 }
adamc@574	1610 }
adamc@574	1611
adamc@574	1612 strcpy(s2, "\"");
adamc@666	1613 ctx->script.front = s2 + 1;
adamc@574	1614 return r;
adamc@574	1615 }
adamc@574	1616
adamc@682	1617 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1618 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1619 return "null";
adamc@682	1620 else {
adamc@682	1621 int len;
adamc@682	1622 char *r;
adamc@682	1623
adamc@682	1624 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1625 r = ctx->heap.front;
adamc@682	1626 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1627 ctx->heap.front += len+1;
adamc@682	1628 return r;
adamc@682	1629 }
adamc@682	1630 }
adamc@682	1631
adam@1446	1632 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1633 int len;
adamc@577	1634 size_t s_len = strlen(s);
adamc@562	1635
grrwlf@1998	1636 if(ctx->id < 0)
grrwlf@1998	1637 uw_error(ctx, FATAL, "Attempt to create client source using inappropriate context");
grrwlf@1998	1638
adam@1446	1639 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1640 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1641 ctx->script.front += len;
adamc@666	1642 strcpy(ctx->script.front, s);
adamc@666	1643 ctx->script.front += s_len;
adamc@970	1644 strcpy(ctx->script.front, "));");
adamc@972	1645 ctx->script.front += 3;
adamc@562	1646
adam@1446	1647 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1648 return r;
adam@1446	1649 }
adam@1446	1650
adam@1446	1651 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1652 int len;
adamc@577	1653 size_t s_len = strlen(s);
adamc@577	1654
adam@1446	1655 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1656 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1657 ctx->script.front += len;
adamc@666	1658 strcpy(ctx->script.front, s);
adamc@666	1659 ctx->script.front += s_len;
adamc@970	1660 strcpy(ctx->script.front, "));");
adamc@972	1661 ctx->script.front += 3;
adamc@577	1662
adamc@577	1663 return uw_unit_v;
adamc@577	1664 }
adamc@577	1665
adamc@311	1666 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1667 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1668 }
adamc@117	1669
adamc@311	1670 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1671 *(ctx->page.front)++ = c;
adam@1413	1672 *ctx->page.front = 0;
adamc@117	1673 }
adamc@117	1674
adamc@311	1675 void uw_writec(uw_context ctx, char c) {
adam@1413	1676 uw_check(ctx, 2);
adamc@311	1677 uw_writec_unsafe(ctx, c);
adamc@117	1678 }
adamc@117	1679
adam@2085	1680 void uw_Basis_writec(uw_context ctx, char c) {
adam@2085	1681 uw_writec(ctx, c);
adam@2085	1682 }
adam@2085	1683
adamc@311	1684 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1685 int len = strlen(s);
adamc@666	1686 memcpy(ctx->page.front, s, len);
adamc@666	1687 ctx->page.front += len;
adamc@117	1688 }
adamc@117	1689
adamc@311	1690 void uw_write(uw_context ctx, const char* s) {
adamc@311	1691 uw_check(ctx, strlen(s) + 1);
adamc@311	1692 uw_write_unsafe(ctx, s);
adamc@666	1693 *ctx->page.front = 0;
adamc@102	1694 }
adamc@106	1695
ziv@2204	1696 void uw_recordingStart(uw_context ctx) {
ziv@2204	1697 ctx->recording = ctx->page.front;
ziv@2204	1698 }
ziv@2204	1699
ziv@2204	1700 char *uw_recordingRead(uw_context ctx) {
ziv@2209	1701 return strdup(ctx->recording);
ziv@2204	1702 }
ziv@2204	1703
adamc@311	1704 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1705 char *result;
adamc@136	1706 int len;
adamc@311	1707 uw_check_heap(ctx, INTS_MAX);
adamc@666	1708 result = ctx->heap.front;
adamc@276	1709 sprintf(result, "%lld%n", n, &len);
adamc@666	1710 ctx->heap.front += len+1;
adamc@136	1711 return result;
adamc@106	1712 }
adamc@106	1713
adamc@311	1714 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1715 char *result;
adamc@136	1716 int len;
adamc@311	1717 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1718 result = ctx->heap.front;
adam@1920	1719 sprintf(result, "%.16g%n", n, &len);
adamc@666	1720 ctx->heap.front += len+1;
adamc@136	1721 return result;
adamc@106	1722 }
adamc@106	1723
adamc@311	1724 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1725 int len = strlen(s);
adamc@136	1726 char result, p;
adamc@311	1727 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1728
adamc@666	1729 result = p = ctx->heap.front;
adamc@136	1730
adamc@136	1731 for (; *s; s++) {
adamc@1054	1732 unsigned char c = *s;
adamc@136	1733
adamc@136	1734 if (c == '"') {
adamc@136	1735 strcpy(p, """);
adamc@136	1736 p += 6;
adamc@136	1737 } else if (c == '&') {
adamc@136	1738 strcpy(p, "&");
adamc@136	1739 p += 5;
adamc@136	1740 }
adamc@1059	1741 else
adamc@136	1742 *p++ = c;
adamc@136	1743 }
adamc@136	1744
adamc@137	1745 *p++ = 0;
adamc@666	1746 ctx->heap.front = p;
adamc@136	1747 return result;
adamc@106	1748 }
adamc@106	1749
adamc@1011	1750 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1751 char result, p;
adamc@1011	1752 uw_check_heap(ctx, 7);
adamc@1011	1753
adamc@1011	1754 result = p = ctx->heap.front;
adamc@1011	1755
adamc@1011	1756 if (c == '"') {
adamc@1011	1757 strcpy(p, """);
adamc@1011	1758 p += 6;
adamc@1011	1759 } else if (c == '&') {
adamc@1011	1760 strcpy(p, "&");
adamc@1011	1761 p += 5;
adamc@1011	1762 }
adamc@1059	1763 else
adamc@1011	1764 *p++ = c;
adamc@1011	1765
adamc@1011	1766 *p++ = 0;
adamc@1011	1767 ctx->heap.front = p;
adamc@1011	1768 return result;
adamc@1011	1769 }
adamc@1011	1770
adamc@721	1771 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1772 return s;
adamc@721	1773 }
adamc@721	1774
adamc@311	1775 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1776 int len;
adamc@117	1777
adamc@666	1778 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1779 ctx->page.front += len;
adamc@106	1780 }
adamc@106	1781
adamc@428	1782 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1783 uw_check(ctx, INTS_MAX);
adamc@311	1784 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1785
adamc@428	1786 return uw_unit_v;
adamc@106	1787 }
adamc@106	1788
adamc@428	1789 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1790 int len;
adamc@117	1791
adamc@311	1792 uw_check(ctx, FLOATS_MAX);
adamc@666	1793 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1794 ctx->page.front += len;
adamc@428	1795
adamc@428	1796 return uw_unit_v;
adamc@117	1797 }
adamc@117	1798
adamc@428	1799 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1800 uw_check(ctx, strlen(s) * 6);
adamc@117	1801
adamc@106	1802 for (; *s; s++) {
adamc@1054	1803 unsigned char c = *s;
adamc@106	1804
adamc@106	1805 if (c == '"')
adamc@311	1806 uw_write_unsafe(ctx, """);
adamc@136	1807 else if (c == '&')
adamc@311	1808 uw_write_unsafe(ctx, "&");
adamc@1059	1809 else
adamc@311	1810 uw_writec_unsafe(ctx, c);
adamc@106	1811 }
adamc@428	1812
adamc@428	1813 return uw_unit_v;
adamc@106	1814 }
adamc@120	1815
adamc@1011	1816 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1817 uw_check(ctx, 6);
adamc@1011	1818
adamc@1011	1819 if (c == '"')
adamc@1011	1820 uw_write_unsafe(ctx, """);
adamc@1011	1821 else if (c == '&')
adamc@1011	1822 uw_write_unsafe(ctx, "&");
adamc@1059	1823 else
adamc@1011	1824 uw_writec_unsafe(ctx, c);
adamc@1011	1825
adamc@1011	1826 return uw_unit_v;
adamc@1011	1827 }
adamc@1011	1828
adamc@120	1829
adamc@311	1830 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1831 int len;
adamc@137	1832 char *r;
adamc@137	1833
adamc@311	1834 uw_check_heap(ctx, INTS_MAX);
adamc@666	1835 r = ctx->heap.front;
adamc@276	1836 sprintf(r, "%lld%n", n, &len);
adamc@666	1837 ctx->heap.front += len+1;
adamc@137	1838 return r;
adamc@120	1839 }
adamc@120	1840
adamc@682	1841 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1842 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1843 return "";
adamc@682	1844 else {
adamc@682	1845 int len;
adamc@682	1846 char *r;
adamc@679	1847
adamc@682	1848 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1849 r = ctx->heap.front;
adamc@682	1850 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1851 ctx->heap.front += len+1;
adamc@682	1852 return r;
adamc@682	1853 }
adamc@679	1854 }
adamc@679	1855
adamc@311	1856 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1857 int len;
adamc@137	1858 char *r;
adamc@137	1859
adamc@311	1860 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1861 r = ctx->heap.front;
adamc@137	1862 sprintf(r, "%g%n", n, &len);
adamc@666	1863 ctx->heap.front += len+1;
adamc@137	1864 return r;
adamc@120	1865 }
adamc@120	1866
adamc@311	1867 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1868 char r, p;
adamc@137	1869
adamc@925	1870 if (s[0] == '\0')
adamc@925	1871 return "_";
adamc@925	1872
adamc@925	1873 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1874
adamc@925	1875 r = p = ctx->heap.front;
adamc@925	1876 if (s[0] == '_')
adamc@925	1877 *p++ = '_';
adamc@925	1878
adamc@925	1879 for (; *s; s++) {
adamc@1087	1880 unsigned char c = *s;
adamc@137	1881
adamc@137	1882 if (c == ' ')
adamc@137	1883 *p++ = '+';
adamc@137	1884 else if (isalnum(c))
adamc@137	1885 *p++ = c;
adamc@137	1886 else {
adamc@1259	1887 sprintf(p, ".%02X", c);
adamc@137	1888 p += 3;
adamc@137	1889 }
adamc@137	1890 }
adamc@137	1891
adamc@137	1892 *p++ = 0;
adamc@666	1893 ctx->heap.front = p;
adamc@137	1894 return r;
adamc@120	1895 }
adamc@120	1896
adamc@311	1897 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1898 if (b == uw_Basis_False)
adamc@186	1899 return "0";
adamc@186	1900 else
adamc@186	1901 return "1";
adamc@186	1902 }
adamc@186	1903
adam@1620	1904 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1905 char *r;
adam@1620	1906 int len;
adam@1620	1907 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1908 r = ctx->heap.front;
adam@1620	1909 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1910 ctx->heap.front += len+1;
adam@1620	1911 return r;
adam@1620	1912 }
adam@1620	1913
adamc@311	1914 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1915 int len;
adamc@120	1916
adamc@666	1917 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1918 ctx->page.front += len;
adamc@120	1919 }
adamc@120	1920
adamc@428	1921 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1922 uw_check(ctx, INTS_MAX);
adamc@311	1923 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1924
adamc@428	1925 return uw_unit_v;
adamc@120	1926 }
adamc@120	1927
adamc@682	1928 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1929 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1930 int len;
phurst@1981	1931
adamc@682	1932 uw_check(ctx, INTS_MAX + 1);
adamc@682	1933 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1934 ctx->page.front += len;
adamc@682	1935 }
phurst@1981	1936
adamc@679	1937 return uw_unit_v;
adamc@679	1938 }
adamc@679	1939
adamc@428	1940 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1941 int len;
adamc@120	1942
adamc@311	1943 uw_check(ctx, FLOATS_MAX);
adamc@666	1944 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1945 ctx->page.front += len;
adamc@428	1946
adamc@428	1947 return uw_unit_v;
adamc@120	1948 }
adamc@120	1949
adamc@488	1950 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1951 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1952 }
adamc@488	1953
adam@1404	1954 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1955 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1956 }
adam@1404	1957
adamc@428	1958 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1959 if (s[0] == '\0') {
adamc@925	1960 uw_check(ctx, 1);
adamc@925	1961 uw_writec_unsafe(ctx, '_');
adamc@925	1962 return uw_unit_v;
adamc@925	1963 }
adamc@925	1964
adamc@925	1965 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1966
adamc@925	1967 if (s[0] == '_')
adamc@925	1968 uw_writec_unsafe(ctx, '_');
adamc@120	1969
adamc@120	1970 for (; *s; s++) {
adamc@1087	1971 unsigned char c = *s;
adamc@120	1972
adamc@120	1973 if (c == ' ')
adamc@311	1974 uw_writec_unsafe(ctx, '+');
adamc@120	1975 else if (isalnum(c))
adamc@311	1976 uw_writec_unsafe(ctx, c);
adamc@120	1977 else {
adamc@1259	1978 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1979 ctx->page.front += 3;
adamc@120	1980 }
adamc@120	1981 }
adamc@428	1982
adamc@428	1983 return uw_unit_v;
adamc@120	1984 }
adamc@120	1985
adamc@428	1986 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1987 if (b == uw_Basis_False)
adamc@311	1988 uw_writec(ctx, '0');
adamc@186	1989 else
adamc@311	1990 uw_writec(ctx, '1');
adamc@428	1991
adamc@428	1992 return uw_unit_v;
adamc@186	1993 }
adamc@186	1994
adam@1620	1995 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	1996 int len;
phurst@1981	1997
adam@1620	1998 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	1999 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	2000 ctx->page.front += len;
phurst@1981	2001
adam@1620	2002 return uw_unit_v;
adam@1620	2003 }
adam@1620	2004
adamc@120	2005
adamc@311	2006 static char uw_unurlify_advance(char s) {
adamc@144	2007 char *new_s = strchr(s, '/');
adamc@120	2008
adamc@120	2009 if (new_s)
adamc@120	2010 *new_s++ = 0;
adamc@120	2011 else
adamc@144	2012 new_s = strchr(s, 0);
adamc@144	2013
adamc@144	2014 return new_s;
adamc@144	2015 }
adamc@144	2016
adamc@311	2017 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	2018 char new_s = uw_unurlify_advance(s);
adamc@311	2019 uw_Basis_int r;
adamc@120	2020
adamc@276	2021 r = atoll(*s);
adamc@120	2022 *s = new_s;
adamc@120	2023 return r;
adamc@120	2024 }
adamc@120	2025
adamc@311	2026 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	2027 char new_s = uw_unurlify_advance(s);
adamc@311	2028 uw_Basis_float r;
adamc@120	2029
adamc@120	2030 r = atof(*s);
adamc@120	2031 *s = new_s;
adamc@120	2032 return r;
adamc@120	2033 }
adamc@120	2034
adamc@488	2035 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	2036 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	2037 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	2038 return r;
adamc@488	2039 }
adamc@488	2040
adamc@1023	2041 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	2042 char s1, s2 = s;
adamc@144	2043 int n;
adamc@136	2044
adamc@1023	2045 if (!fromClient) {
adamc@1023	2046 if (*s2 == '_')
adamc@1023	2047 ++s2;
adamc@1259	2048 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	2049 s2 += 3;
adamc@1023	2050 }
adamc@925	2051
adamc@927	2052 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	2053 unsigned char c = *s2;
adamc@136	2054
adamc@136	2055 switch (c) {
adamc@136	2056 case '+':
adamc@136	2057 *s1 = ' ';
adamc@136	2058 break;
adamc@136	2059 case '%':
adamc@169	2060 if (s2[1] == 0)
adamc@311	2061 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	2062 if (s2[2] == 0)
adamc@311	2063 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	2064 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2065 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	2066 *s1 = n;
adamc@136	2067 s2 += 2;
adamc@136	2068 break;
adamc@1259	2069 case '.':
adamc@1259	2070 if (!fromClient) {
adamc@1259	2071 if (s2[1] == 0)
adamc@1259	2072 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	2073 if (s2[2] == 0)
adamc@1259	2074 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	2075 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2076 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	2077 *s1 = n;
adamc@1259	2078 s2 += 2;
adamc@1259	2079 break;
adamc@1259	2080 }
adamc@136	2081 default:
adamc@136	2082 *s1 = c;
adamc@136	2083 }
adamc@136	2084 }
adamc@136	2085 *s1++ = 0;
adamc@144	2086 return s1;
adamc@144	2087 }
adamc@144	2088
adamc@311	2089 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	2090 char new_s = uw_unurlify_advance(s);
adamc@311	2091 uw_Basis_bool r;
phurst@1981	2092
adamc@186	2093 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2094 r = uw_Basis_False;
adamc@186	2095 else
adamc@311	2096 r = uw_Basis_True;
adamc@186	2097
adamc@186	2098 *s = new_s;
adamc@186	2099 return r;
adamc@186	2100 }
adamc@186	2101
adamc@311	2102 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2103 char new_s = uw_unurlify_advance(s);
adamc@1134	2104 char *r;
adamc@1134	2105 int len;
adamc@144	2106
adamc@200	2107 len = strlen(*s);
adamc@311	2108 uw_check_heap(ctx, len + 1);
adamc@144	2109
adamc@666	2110 r = ctx->heap.front;
adamc@1023	2111 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2112 *s = new_s;
adamc@1023	2113 return r;
adamc@1023	2114 }
adamc@1023	2115
adamc@1109	2116 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2117 s = uw_unurlify_advance(s);
adamc@1109	2118 return uw_unit_v;
adamc@1109	2119 }
adamc@1109	2120
adamc@1023	2121 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2122 char new_s = uw_unurlify_advance(s);
adamc@1134	2123 char *r;
adamc@1134	2124 int len;
adamc@1023	2125
adamc@1023	2126 len = strlen(*s);
adamc@1023	2127 uw_check_heap(ctx, len + 1);
adamc@1023	2128
adamc@1023	2129 r = ctx->heap.front;
adamc@1023	2130 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2131 *s = new_s;
adamc@136	2132 return r;
adamc@120	2133 }
adamc@135	2134
adamc@135	2135
adamc@311	2136 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2137 int len;
adamc@286	2138 char *r;
adamc@286	2139
adamc@311	2140 uw_check_heap(ctx, INTS_MAX);
adamc@666	2141 r = ctx->heap.front;
adamc@286	2142 sprintf(r, "%lld%n", n, &len);
adamc@666	2143 ctx->heap.front += len+1;
adamc@286	2144 return r;
adamc@286	2145 }
adamc@286	2146
adamc@428	2147 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2148 int len;
adamc@286	2149
adamc@311	2150 uw_check(ctx, INTS_MAX);
adamc@666	2151 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2152 ctx->page.front += len;
phurst@1981	2153
adamc@428	2154 return uw_unit_v;
adamc@286	2155 }
adamc@286	2156
adam@1358	2157 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2158 unsigned int n = ch;
adam@1358	2159 int len;
adam@1358	2160 char *r;
adam@1358	2161
adam@1358	2162 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2163 r = ctx->heap.front;
adam@1358	2164 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2165 ctx->heap.front += len+1;
adam@1358	2166 return r;
adam@1358	2167 }
adam@1358	2168
adam@1358	2169 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2170 unsigned int n = ch;
adam@1358	2171 int len;
adam@1358	2172
adam@1358	2173 uw_check(ctx, INTS_MAX+3);
adam@1358	2174 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2175 ctx->page.front += len;
adam@1358	2176 return uw_unit_v;
adam@1358	2177 }
adam@1358	2178
adamc@311	2179 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2180 int len;
adamc@286	2181 char *r;
adamc@286	2182
adamc@311	2183 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2184 r = ctx->heap.front;
adamc@286	2185 sprintf(r, "%g%n", n, &len);
adamc@666	2186 ctx->heap.front += len+1;
adamc@286	2187 return r;
adamc@286	2188 }
adamc@286	2189
adamc@428	2190 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2191 int len;
adamc@286	2192
adamc@311	2193 uw_check(ctx, FLOATS_MAX);
adamc@666	2194 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2195 ctx->page.front += len;
adamc@428	2196
adamc@428	2197 return uw_unit_v;
adamc@286	2198 }
adamc@286	2199
adam@1365	2200 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2201 int len;
adam@1360	2202 char *r;
adam@1360	2203
adam@1360	2204 uw_check_heap(ctx, INTS_MAX);
adam@1360	2205 r = ctx->heap.front;
adamc@1377	2206 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2207 ctx->heap.front += len+1;
adam@1360	2208 return r;
adam@1360	2209 }
adam@1360	2210
adam@1365	2211 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2212 int len;
adam@1360	2213
adam@1360	2214 uw_check(ctx, INTS_MAX);
adam@1360	2215 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2216 ctx->page.front += len;
phurst@1981	2217
adam@1360	2218 return uw_unit_v;
adam@1360	2219 }
adam@1360	2220
adam@1444	2221 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2222 char r, s2;
adamc@137	2223
adamc@311	2224 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2225
adamc@666	2226 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2227 unsigned char c = *s;
adamc@137	2228
adamc@137	2229 switch (c) {
adamc@137	2230 case '<':
adamc@137	2231 strcpy(s2, "<");
adamc@137	2232 s2 += 4;
adamc@137	2233 break;
adamc@137	2234 case '&':
adamc@137	2235 strcpy(s2, "&");
adamc@137	2236 s2 += 5;
adamc@137	2237 break;
adamc@137	2238 default:
adamc@1059	2239 *s2++ = c;
adamc@137	2240 }
adamc@137	2241 }
adamc@137	2242
adamc@137	2243 *s2++ = 0;
adamc@666	2244 ctx->heap.front = s2;
adamc@137	2245 return r;
adamc@135	2246 }
adamc@135	2247
adamc@428	2248 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2249 uw_check(ctx, strlen(s) * 6);
adamc@135	2250
adamc@135	2251 for (; *s; s++) {
adamc@1054	2252 unsigned char c = *s;
adamc@135	2253
adamc@135	2254 switch (c) {
adamc@135	2255 case '<':
adamc@311	2256 uw_write_unsafe(ctx, "<");
adamc@135	2257 break;
adamc@135	2258 case '&':
adamc@311	2259 uw_write_unsafe(ctx, "&");
adamc@135	2260 break;
adamc@135	2261 default:
adamc@1059	2262 uw_writec_unsafe(ctx, c);
adamc@135	2263 }
adamc@135	2264 }
adamc@428	2265
adamc@428	2266 return uw_unit_v;
adamc@135	2267 }
adamc@180	2268
adamc@311	2269 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2270 if (b == uw_Basis_False)
adamc@286	2271 return "False";
adamc@286	2272 else
adamc@286	2273 return "True";
adamc@286	2274 }
adamc@286	2275
adamc@428	2276 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2277 if (b == uw_Basis_False) {
adamc@311	2278 uw_check(ctx, 6);
adamc@666	2279 strcpy(ctx->page.front, "False");
adamc@666	2280 ctx->page.front += 5;
adamc@286	2281 } else {
adamc@311	2282 uw_check(ctx, 5);
adamc@666	2283 strcpy(ctx->page.front, "True");
adamc@666	2284 ctx->page.front += 4;
adamc@286	2285 }
adamc@428	2286
adamc@428	2287 return uw_unit_v;
adamc@286	2288 }
adamc@286	2289
adamc@436	2290 #define TIME_FMT "%x %X"
adamc@438	2291 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2292 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2293
adam@1629	2294 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2295
adamc@436	2296 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2297 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2298 }
adamc@436	2299
adamc@436	2300 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2301 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2302 }
adamc@436	2303
adam@1446	2304 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2305 int len;
adam@1446	2306 char *r;
adam@1446	2307
adam@1446	2308 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2309 r = ctx->heap.front;
adam@1446	2310 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2311 ctx->heap.front += len+1;
adam@1446	2312 return r;
adam@1446	2313 }
adam@1446	2314
adam@1446	2315 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2316 int len;
adam@1446	2317
adam@1446	2318 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2319 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2320 ctx->page.front += len;
phurst@1981	2321
adam@1446	2322 return uw_unit_v;
adam@1446	2323 }
adam@1446	2324
adamc@821	2325 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2326 while (n >= 0) {
adam@1388	2327 if (*s == 0)
adam@1388	2328 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2329
adam@1388	2330 if (n == 0)
adam@1388	2331 return *s;
adam@1388	2332
adam@1388	2333 --n;
adam@1388	2334 ++s;
adam@1388	2335 }
adam@1388	2336
adam@1388	2337 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2338 }
adamc@821	2339
adamc@821	2340 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2341 while (n >= 0) {
adam@1388	2342 if (*s == 0 \|\| n == 0)
adam@1388	2343 return s;
adam@1388	2344
adam@1388	2345 --n;
adam@1388	2346 ++s;
adam@1388	2347 }
adam@1388	2348
adam@1388	2349 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2350 }
adamc@821	2351
adamc@828	2352 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2353 return strlen(s);
adamc@828	2354 }
adamc@828	2355
adam@1388	2356 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2357 while (n > 0) {
adam@1388	2358 if (*s == 0)
adam@1388	2359 return uw_Basis_False;
adam@1388	2360
adam@1388	2361 --n;
adam@1388	2362 ++s;
adam@1388	2363 }
adam@1388	2364
adam@1388	2365 return uw_Basis_True;
adam@1388	2366 }
adam@1388	2367
adamc@829	2368 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2369 return strchr(s, ch);
adamc@829	2370 }
adamc@829	2371
adamc@831	2372 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2373 return strcspn(s, chs);
adamc@831	2374 }
adamc@831	2375
adamc@829	2376 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2377 uw_Basis_string r = strchr(s, ch);
adamc@829	2378 if (r == NULL)
adamc@829	2379 return NULL;
adamc@829	2380 else {
adamc@829	2381 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2382 *nr = r - s;
adamc@829	2383 return nr;
adamc@829	2384 }
adamc@829	2385 }
adamc@829	2386
adam@1390	2387 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2388 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2389 if (r == NULL)
adam@1390	2390 return NULL;
adam@1390	2391 else {
adam@1390	2392 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2393 *nr = r - haystack;
adam@1390	2394 return nr;
adam@1390	2395 }
adam@1390	2396 }
adam@1390	2397
adamc@311	2398 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2399 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2400 char *s;
adamc@180	2401
adamc@311	2402 uw_check_heap(ctx, len);
adamc@180	2403
adamc@666	2404 s = ctx->heap.front;
adamc@180	2405
adamc@180	2406 strcpy(s, s1);
adamc@180	2407 strcat(s, s2);
adamc@666	2408 ctx->heap.front += len;
adamc@180	2409
adamc@180	2410 return s;
adamc@180	2411 }
adamc@278	2412
adamc@829	2413 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2414 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2415
adamc@829	2416 if (start < 0)
adamc@829	2417 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2418 if (len < 0)
adamc@829	2419 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2420 if (start + len > full_len)
adamc@829	2421 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2422
adamc@829	2423 if (start + len == full_len)
adamc@829	2424 return &s[start];
adamc@829	2425 else {
adamc@829	2426 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2427 memcpy(r, s+start, len);
adamc@829	2428 r[len] = 0;
adamc@829	2429 return r;
adamc@829	2430 }
phurst@1981	2431
adamc@829	2432 }
adamc@829	2433
adamc@1023	2434 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2435 char *r;
adamc@1023	2436
adamc@1023	2437 uw_check_heap(ctx, 2);
adamc@1023	2438 r = ctx->heap.front;
adamc@1023	2439 r[0] = ch;
adamc@1023	2440 r[1] = 0;
adamc@1023	2441
adamc@1023	2442 ctx->heap.front += 2;
adamc@1023	2443
adamc@1023	2444 return r;
adamc@1023	2445 }
adamc@1023	2446
adamc@737	2447 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2448 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2449 char *s;
adamc@278	2450
adamc@311	2451 uw_check_heap(ctx, len);
adamc@278	2452
adamc@666	2453 s = ctx->heap.front;
adamc@278	2454
adamc@278	2455 strcpy(s, s1);
adamc@666	2456 ctx->heap.front += len;
adamc@278	2457
adamc@278	2458 return s;
adamc@278	2459 }
adamc@280	2460
adam@1295	2461 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2462 if (ctx->error_message[0]) {
adam@1295	2463 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2464 ctx->error_message[0] = 0;
adam@1295	2465 return s;
adam@1295	2466 } else
adam@1295	2467 return NULL;
adam@1295	2468 }
adam@1295	2469
adamc@737	2470 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2471 if (s1)
adamc@737	2472 return uw_strdup(ctx, s1);
adamc@493	2473 else
adamc@493	2474 return NULL;
adamc@493	2475 }
adamc@493	2476
adamc@742	2477 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2478 char *r = uw_malloc(ctx, len);
adamc@742	2479 memcpy(r, p, len);
adamc@742	2480 return r;
adamc@742	2481 }
adamc@280	2482
adamc@879	2483 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2484
adamc@311	2485 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2486 int len;
adamc@281	2487 char *r;
adamc@281	2488
adamc@311	2489 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2490 r = ctx->heap.front;
adamc@879	2491 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2492 ctx->heap.front += len+1;
adamc@281	2493 return r;
adamc@281	2494 }
adamc@281	2495
adamc@467	2496 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2497 if (n == NULL)
adamc@467	2498 return "NULL";
adamc@467	2499 else
adamc@467	2500 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2501 }
adamc@467	2502
adam@1920	2503 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879	2504
adamc@311	2505 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2506 int len;
adamc@281	2507 char *r;
adamc@281	2508
adamc@311	2509 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2510 r = ctx->heap.front;
adamc@879	2511 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2512 ctx->heap.front += len+1;
adamc@281	2513 return r;
adamc@281	2514 }
adamc@281	2515
adamc@467	2516 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2517 if (n == NULL)
adamc@467	2518 return "NULL";
adamc@467	2519 else
adamc@467	2520 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2521 }
adamc@467	2522
adam@1834	2523 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2524 char *uw_sqlsuffixString = "::text";
adamc@1011	2525 char *uw_sqlsuffixChar = "::char";
adamc@281	2526
adamc@311	2527 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2528 char r, s2;
adamc@280	2529
adamc@879	2530 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2531
adamc@666	2532 r = s2 = ctx->heap.front;
adamc@879	2533 if (uw_Estrings)
adamc@879	2534 *s2++ = 'E';
adamc@280	2535 *s2++ = '\'';
adamc@280	2536
adamc@280	2537 for (; *s; s++) {
adamc@280	2538 char c = *s;
adamc@280	2539
adamc@280	2540 switch (c) {
adamc@280	2541 case '\'':
adamc@885	2542 if (uw_Estrings)
adamc@885	2543 strcpy(s2, "\\'");
adamc@885	2544 else
adamc@885	2545 strcpy(s2, "''");
adamc@280	2546 s2 += 2;
adamc@280	2547 break;
adamc@280	2548 case '\\':
adamc@885	2549 if (uw_Estrings) {
adamc@885	2550 strcpy(s2, "\\\\");
adamc@885	2551 s2 += 2;
adamc@885	2552 } else
adamc@885	2553 *s2++ = '\\';
adamc@280	2554 break;
adamc@280	2555 default:
adamc@1150	2556 if (isprint((int)c))
adamc@280	2557 *s2++ = c;
adamc@879	2558 else if (uw_Estrings) {
adam@1857	2559 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2560 s2 += 4;
adamc@280	2561 }
adamc@879	2562 else
adam@1689	2563 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2564 }
adamc@280	2565 }
adamc@280	2566
adamc@879	2567 *s2++ = '\'';
adamc@879	2568 strcpy(s2, uw_sqlsuffixString);
adamc@879	2569 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2570 return r;
adamc@280	2571 }
adamc@281	2572
adamc@1011	2573 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2574 char r, s2;
adamc@1011	2575
adamc@1011	2576 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2577
adamc@1011	2578 r = s2 = ctx->heap.front;
adamc@1011	2579 if (uw_Estrings)
adamc@1011	2580 *s2++ = 'E';
adamc@1011	2581 *s2++ = '\'';
adamc@1011	2582
adamc@1011	2583 switch (c) {
adamc@1011	2584 case '\'':
adamc@1011	2585 if (uw_Estrings)
adamc@1011	2586 strcpy(s2, "\\'");
adamc@1011	2587 else
adamc@1011	2588 strcpy(s2, "''");
adamc@1011	2589 s2 += 2;
adamc@1011	2590 break;
adamc@1011	2591 case '\\':
adamc@1011	2592 if (uw_Estrings) {
adamc@1011	2593 strcpy(s2, "\\\\");
adamc@1011	2594 s2 += 2;
adamc@1011	2595 } else
adamc@1011	2596 *s2++ = '\\';
adamc@1011	2597 break;
adamc@1011	2598 default:
adamc@1150	2599 if (isprint((int)c))
adamc@1011	2600 *s2++ = c;
adamc@1011	2601 else if (uw_Estrings) {
adam@1857	2602 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2603 s2 += 4;
adamc@1011	2604 }
adamc@1011	2605 else
adamc@1011	2606 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2607 }
adamc@1011	2608
adamc@1011	2609 *s2++ = '\'';
adamc@1011	2610 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2611 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2612 return r;
adamc@1011	2613 }
adamc@1011	2614
adamc@879	2615 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2616
adam@1867	2617 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2618 char r, s2;
adamc@737	2619 size_t i;
adamc@737	2620
adam@1867	2621 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2622
adamc@737	2623 r = s2 = ctx->heap.front;
adamc@879	2624 if (uw_Estrings)
adamc@879	2625 *s2++ = 'E';
adam@1867	2626 else
adam@1867	2627 *s2++ = 'X';
adamc@737	2628 *s2++ = '\'';
adamc@737	2629
adamc@737	2630 for (i = 0; i < b.size; ++i) {
adam@1867	2631 unsigned char c = b.data[i];
adam@1867	2632
adam@1867	2633 if (uw_Estrings) {
adam@1867	2634 switch (c) {
adam@1867	2635 case '\'':
adamc@885	2636 strcpy(s2, "\\'");
adam@1867	2637 s2 += 2;
adam@1867	2638 break;
adam@1867	2639 case '\\':
adamc@885	2640 strcpy(s2, "\\\\\\\\");
adamc@885	2641 s2 += 4;
adam@1867	2642 break;
adam@1867	2643 default:
adam@1867	2644 if (isprint((int)c))
adam@1867	2645 *s2++ = c;
adam@1867	2646 else {
adam@1867	2647 sprintf(s2, "\\\\%03o", c);
adam@1867	2648 s2 += 5;
adam@1867	2649 }
adamc@737	2650 }
adam@1867	2651 } else {
adam@1867	2652 sprintf(s2, "%02X", c);
adam@1867	2653 s2 += 2;
adamc@737	2654 }
phurst@1981	2655 }
adamc@737	2656
adamc@879	2657 *s2++ = '\'';
adamc@879	2658 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2659 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2660 return r;
adamc@737	2661 }
adamc@737	2662
adamc@682	2663 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2664 int len;
adamc@682	2665 char *r;
adamc@682	2666 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2667
adamc@682	2668 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2669 r = ctx->heap.front;
adamc@879	2670 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2671 ctx->heap.front += len+1;
adamc@682	2672 return r;
adamc@682	2673 }
adamc@682	2674
adamc@682	2675 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2676 int len;
adamc@682	2677 char *r;
adamc@682	2678 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2679
adamc@682	2680 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2681 r = ctx->heap.front;
adamc@682	2682 sprintf(r, "%lld%n", combo, &len);
adamc@682	2683 ctx->heap.front += len+1;
adamc@682	2684 return r;
adamc@682	2685 }
adamc@682	2686
adamc@879	2687 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2688
adamc@682	2689 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2690 int len;
adamc@682	2691 char *r;
adamc@682	2692
adamc@682	2693 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2694 r = ctx->heap.front;
adamc@879	2695 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2696 ctx->heap.front += len+1;
adamc@682	2697 return r;
adamc@682	2698 }
adamc@682	2699
adamc@682	2700 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2701 int len;
adamc@682	2702 char *r;
adamc@682	2703
adamc@682	2704 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2705 r = ctx->heap.front;
adamc@682	2706 sprintf(r, "%u%n", cli, &len);
adamc@682	2707 ctx->heap.front += len+1;
adamc@682	2708 return r;
adamc@682	2709 }
adamc@682	2710
adamc@467	2711 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2712 if (s == NULL)
adamc@467	2713 return "NULL";
adamc@467	2714 else
adamc@467	2715 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2716 }
adamc@467	2717
adamc@311	2718 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2719 if (b == uw_Basis_False)
adamc@281	2720 return "FALSE";
adamc@281	2721 else
adamc@281	2722 return "TRUE";
adamc@281	2723 }
adamc@282	2724
adamc@467	2725 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2726 if (b == NULL)
adamc@467	2727 return "NULL";
adamc@467	2728 else
adamc@467	2729 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2730 }
adamc@467	2731
adamc@439	2732 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2733 size_t len;
adamc@682	2734 char r, s;
adam@1392	2735 struct tm stm = {};
adam@1392	2736 stm.tm_isdst = -1;
adamc@682	2737
adam@1365	2738 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2739 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2740 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2741 if (uw_sql_type_annotations) {
adam@1834	2742 if (t.microseconds) {
adam@1834	2743 r = uw_malloc(ctx, len + 21);
adam@1834	2744 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2745 } else {
adam@1834	2746 r = uw_malloc(ctx, len + 14);
adam@1834	2747 sprintf(r, "'%s'::timestamp", s);
adam@1834	2748 }
adam@1367	2749 } else {
adam@1834	2750 r = uw_malloc(ctx, len + 3);
adam@1834	2751 sprintf(r, "'%s'", s);
adam@1367	2752 }
adamc@682	2753 return r;
adamc@682	2754 } else
adamc@682	2755 return "<Invalid time>";
adamc@682	2756 }
adamc@682	2757
adamc@682	2758 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2759 size_t len;
adamc@439	2760 char *r;
adam@1392	2761 struct tm stm = {};
adam@1392	2762 stm.tm_isdst = -1;
adamc@439	2763
adam@1365	2764 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2765 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2766 r = ctx->heap.front;
adamc@439	2767 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2768 ctx->heap.front += len+1;
adamc@439	2769 return r;
adamc@439	2770 } else
adamc@439	2771 return "<Invalid time>";
adamc@439	2772 }
adamc@439	2773
adam@1364	2774 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2775 size_t len;
adam@1364	2776 char *r;
adam@1392	2777 struct tm stm = {};
adam@1392	2778 stm.tm_isdst = -1;
adam@1364	2779
adam@1365	2780 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2781 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2782 r = ctx->heap.front;
adam@1365	2783 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2784 ctx->heap.front += len;
adam@1365	2785 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2786 ctx->heap.front += 8;
adam@1364	2787 return r;
adam@1364	2788 } else
adam@1364	2789 return "<Invalid time>";
adam@1364	2790 }
adam@1364	2791
adamc@467	2792 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2793 if (t == NULL)
adamc@467	2794 return "NULL";
adamc@467	2795 else
adamc@467	2796 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2797 }
adamc@467	2798
adamc@311	2799 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2800 static uw_Basis_int true = 1;
adamc@311	2801 static uw_Basis_int false = 0;
adamc@282	2802
adamc@311	2803 if (b == uw_Basis_False)
adamc@282	2804 return (char *)&false;
adamc@282	2805 else
adamc@282	2806 return (char *)&true;
adamc@282	2807 }
adamc@284	2808
adamc@311	2809 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2810 int len;
adamc@284	2811 char *r;
adamc@284	2812
adamc@311	2813 uw_check_heap(ctx, INTS_MAX);
adamc@666	2814 r = ctx->heap.front;
adamc@284	2815 sprintf(r, "%lld%n", n, &len);
adamc@666	2816 ctx->heap.front += len+1;
adamc@284	2817 return r;
adamc@284	2818 }
adamc@285	2819
adamc@311	2820 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2821 int len;
adamc@285	2822 char *r;
adamc@285	2823
adamc@311	2824 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2825 r = ctx->heap.front;
adamc@285	2826 sprintf(r, "%g%n", n, &len);
adamc@666	2827 ctx->heap.front += len+1;
adamc@285	2828 return r;
adamc@285	2829 }
adamc@285	2830
adamc@821	2831 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2832 char *r = uw_malloc(ctx, 2);
adamc@821	2833 r[0] = ch;
adamc@821	2834 r[1] = 0;
adamc@821	2835 return r;
adamc@821	2836 }
adamc@821	2837
adamc@311	2838 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2839 if (b == uw_Basis_False)
adamc@285	2840 return "False";
adamc@285	2841 else
adamc@285	2842 return "True";
adamc@285	2843 }
adamc@288	2844
adam@1359	2845 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2846 size_t len;
adam@1352	2847 char *r;
adam@1392	2848 struct tm stm = {};
adam@1392	2849 stm.tm_isdst = -1;
adam@1352	2850
adam@1365	2851 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2852 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2853 r = ctx->heap.front;
adam@1352	2854 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2855 ctx->heap.front += len+1;
adam@1352	2856 return r;
adam@1352	2857 } else
adam@1352	2858 return "<Invalid time>";
adam@1352	2859 }
adam@1352	2860
adam@1629	2861 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2862 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2863 }
adam@1629	2864
adamc@311	2865 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2866 char *endptr;
adamc@311	2867 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2868
adamc@288	2869 if (s != '\0' && endptr == '\0') {
adamc@311	2870 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2871 *r = n;
adamc@288	2872 return r;
adamc@288	2873 } else
adamc@288	2874 return NULL;
adamc@288	2875 }
adamc@289	2876
adamc@311	2877 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2878 char *endptr;
adamc@311	2879 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2880
adamc@289	2881 if (s != '\0' && endptr == '\0') {
adamc@311	2882 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2883 *r = n;
adamc@289	2884 return r;
adamc@289	2885 } else
adamc@289	2886 return NULL;
adamc@289	2887 }
adamc@289	2888
adamc@821	2889 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2890 if (s[0] == 0) {
adamc@821	2891 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2892 r[0] = 0;
adamc@821	2893 return r;
adamc@821	2894 } else if (s[1] != 0)
adamc@821	2895 return NULL;
adamc@821	2896 else {
adamc@821	2897 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2898 r[0] = s[0];
adamc@821	2899 return r;
adamc@821	2900 }
adamc@821	2901 }
adamc@821	2902
adamc@311	2903 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2904 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2905 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2906
adamc@289	2907 if (!strcasecmp (s, "True"))
adamc@289	2908 return &true;
adamc@289	2909 else if (!strcasecmp (s, "False"))
adamc@289	2910 return &false;
adamc@289	2911 else
adamc@289	2912 return NULL;
adamc@289	2913 }
adamc@292	2914
adamc@436	2915 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2916 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2917 struct tm stm = {};
adam@1392	2918 stm.tm_isdst = -1;
adamc@436	2919
adamc@439	2920 if (dot) {
adamc@439	2921 *dot = 0;
adamc@439	2922 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2923 *dot = '.';
adamc@439	2924 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2925 r->seconds = mktime(&stm);
adam@1365	2926 r->microseconds = 0;
adamc@439	2927 return r;
adamc@439	2928 }
adamc@439	2929 else {
adamc@439	2930 *dot = '.';
adamc@439	2931 return NULL;
adamc@439	2932 }
adamc@436	2933 }
adamc@439	2934 else {
adam@2072	2935 if (strptime(s, ctx->app->time_format, &stm) == end) {
adamc@439	2936 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2937 r->seconds = mktime(&stm);
adam@1365	2938 r->microseconds = 0;
adamc@439	2939 return r;
adam@2072	2940 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@2072	2941 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@2072	2942 r->seconds = mktime(&stm);
adam@2072	2943 r->microseconds = 0;
adam@2072	2944 return r;
adam@2072	2945 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2946 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2947 r->seconds = mktime(&stm);
adam@1365	2948 r->microseconds = 0;
adamc@439	2949 return r;
adam@1632	2950 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2951 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2952 r->seconds = mktime(&stm);
adam@1632	2953 r->microseconds = 0;
adam@1632	2954 return r;
adamc@439	2955 }
adamc@439	2956 else
adamc@439	2957 return NULL;
adamc@439	2958 }
adamc@436	2959 }
adamc@436	2960
adam@1352	2961 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2962 char *end = strchr(s, 0);
adam@1374	2963 struct tm stm = {};
adam@1392	2964 stm.tm_isdst = -1;
adam@1352	2965
adam@1352	2966 if (strptime(s, fmt, &stm) == end) {
adam@1352	2967 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2968 r->seconds = mktime(&stm);
adam@1365	2969 r->microseconds = 0;
adam@1352	2970 return r;
adam@1352	2971 }
adam@1352	2972 else
adam@1352	2973 return NULL;
adam@1352	2974 }
adam@1352	2975
adamc@311	2976 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2977 char *endptr;
adamc@311	2978 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2979
adamc@292	2980 if (s != '\0' && endptr == '\0')
adamc@292	2981 return n;
adamc@292	2982 else
adam@1444	2983 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2984 }
adamc@293	2985
adamc@682	2986 #include <errno.h>
adamc@682	2987
adamc@678	2988 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2989 unsigned long long n;
adamc@682	2990
adamc@682	2991 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2992 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	2993 else {
adamc@682	2994 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2995 return ch;
adamc@682	2996 }
adamc@682	2997 }
adamc@682	2998
adamc@682	2999 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	3000 char *endptr;
adamc@682	3001 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	3002
adamc@678	3003 if (s != '\0' && endptr == '\0')
adamc@678	3004 return n;
adamc@678	3005 else
adam@1444	3006 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	3007 }
adamc@678	3008
adamc@311	3009 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	3010 char *endptr;
adamc@311	3011 uw_Basis_float n = strtod(s, &endptr);
adamc@293	3012
adamc@293	3013 if (s != '\0' && endptr == '\0')
adamc@293	3014 return n;
adamc@293	3015 else
adam@1444	3016 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3017 }
adamc@293	3018
adamc@821	3019 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	3020 if (s[0] == 0)
adamc@821	3021 return 0;
adamc@821	3022 else if (s[1] != 0)
adam@1444	3023 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	3024 else
adamc@821	3025 return s[0];
adamc@821	3026 }
adamc@821	3027
adamc@311	3028 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	3029 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	3030 return uw_Basis_True;
adamc@296	3031 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	3032 return uw_Basis_False;
adamc@293	3033 else
adam@1444	3034 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3035 }
adamc@436	3036
adam@1352	3037 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	3038 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	3039 struct tm stm = {};
adam@1392	3040 stm.tm_isdst = -1;
adam@1352	3041
adam@1352	3042 if (dot) {
adam@1352	3043 *dot = 0;
adam@1352	3044 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	3045 *dot = '.';
adam@1410	3046 char usec[] = "000000";
adam@1410	3047 int len = strlen(dot+1);
adam@1410	3048 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	3049 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	3050 return r;
adam@1352	3051 }
adam@1352	3052 else {
adam@1352	3053 *dot = '.';
adam@1444	3054 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3055 }
adam@1352	3056 }
adam@1352	3057 else {
adam@1352	3058 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3059 uw_Basis_time r = { mktime(&stm) };
adam@1365	3060 return r;
adam@1352	3061 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3062 uw_Basis_time r = { mktime(&stm) };
adam@1365	3063 return r;
adam@1352	3064 } else
adam@1444	3065 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3066 }
adam@1352	3067 }
adam@1352	3068
adamc@436	3069 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	3070 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	3071 struct tm stm = {};
adam@1392	3072 stm.tm_isdst = -1;
adamc@436	3073
adamc@438	3074 if (dot) {
adamc@438	3075 *dot = 0;
adamc@438	3076 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	3077 *dot = '.';
adam@1365	3078 {
adam@1365	3079 uw_Basis_time r = { mktime(&stm) };
adam@1365	3080 return r;
adam@1365	3081 }
adamc@438	3082 }
adamc@438	3083 else {
adamc@438	3084 *dot = '.';
adam@1444	3085 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3086 }
adamc@438	3087 }
adamc@438	3088 else {
adam@2072	3089 if (strptime(s, ctx->app->time_format, &stm) == end) {
adam@2072	3090 uw_Basis_time r = { mktime(&stm) };
adam@2072	3091 return r;
adam@2072	3092 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3093 uw_Basis_time r = { mktime(&stm) };
adam@1365	3094 return r;
adam@1365	3095 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3096 uw_Basis_time r = { mktime(&stm) };
adam@1365	3097 return r;
adam@1632	3098 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3099 uw_Basis_time r = { mktime(&stm) };
adam@1632	3100 return r;
adam@1365	3101 } else
adam@1444	3102 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3103 }
adamc@436	3104 }
adamc@457	3105
adam@1352	3106 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3107 char *end = strchr(s, 0);
adamc@939	3108 struct tm stm = {};
adam@1392	3109 stm.tm_isdst = -1;
adamc@939	3110
adam@1365	3111 if (strptime(s, fmt, &stm) == end) {
adam@1365	3112 uw_Basis_time r = { mktime(&stm) };
adam@1365	3113 return r;
adam@1365	3114 } else
adam@1444	3115 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3116 }
adamc@939	3117
adamc@742	3118 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3119 char *r = ctx->heap.front;
adamc@742	3120 uw_Basis_blob b = {len, r};
adamc@742	3121
adamc@742	3122 uw_check_heap(ctx, len);
adamc@742	3123
adam@1992	3124 if (s[0] == '\\' && s[1] == 'x') {
adam@1992	3125 s += 2;
adam@1992	3126
adam@1992	3127 while (*s) {
adam@1992	3128 int n;
adam@1992	3129 sscanf(s, "%02x", &n);
adam@1992	3130 *r++ = n;
adam@1992	3131 s += 2;
adam@1992	3132 }
adam@1992	3133 } else {
adam@1992	3134 while (*s) {
adam@1992	3135 if (s[0] == '\\') {
adam@1992	3136 if (s[1] == '\\') {
adam@1992	3137 *r++ = '\\';
adam@1992	3138 s += 2;
adam@1992	3139 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adam@1992	3140 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adam@1992	3141 s += 4;
adam@1992	3142 }
adam@1992	3143 else {
adam@1992	3144 *r++ = '\\';
adam@1992	3145 ++s;
adam@1992	3146 }
adam@1992	3147 } else {
adam@1992	3148 *r++ = s[0];
adamc@742	3149 ++s;
adamc@742	3150 }
adamc@742	3151 }
adamc@742	3152 }
adamc@742	3153
adamc@742	3154 b.size = r - ctx->heap.front;
adamc@742	3155 ctx->heap.front = r;
adam@1992	3156
adamc@742	3157 return b;
adamc@742	3158 }
adamc@742	3159
adam@1402	3160 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3161
adamc@463	3162 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3163 int len = strlen(c);
adamc@854	3164 char *p = ctx->outHeaders.start;
adamc@474	3165
adamc@1134	3166 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3167 char *p2;
adamc@474	3168 p += 13;
adamc@474	3169 p2 = strchr(p, '=');
adamc@474	3170
adamc@474	3171 if (p2) {
adamc@474	3172 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3173
adamc@474	3174 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3175 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3176 return NULL;
adamc@1052	3177 else {
adamc@1052	3178 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3179 memcpy(ret, p2+1, sz);
adamc@1052	3180 ret[sz] = 0;
adamc@1052	3181 return ret;
adamc@1052	3182 }
adamc@474	3183 }
adamc@474	3184 }
adamc@474	3185 }
adamc@463	3186
adamc@1134	3187 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3188 char *p2;
adamc@1051	3189
adamc@854	3190 while (1) {
adamc@1051	3191 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3192 if ((p2 = strchr(p, ';'))) {
adamc@1051	3193 size_t n = p2 - (p + len);
adamc@1051	3194 char *r = uw_malloc(ctx, n);
adamc@1051	3195 memcpy(r, p + 1 + len, n-1);
adamc@1051	3196 r[n-1] = 0;
adamc@1051	3197 return r;
adamc@1051	3198 } else
adamc@1051	3199 return p + 1 + len;
adamc@1134	3200 } else if ((p = strchr(p, ';')))
adamc@854	3201 p += 2;
adamc@463	3202 else
adamc@463	3203 return NULL;
adamc@463	3204 }
adamc@463	3205 }
adamc@792	3206
adamc@792	3207 return NULL;
adamc@457	3208 }
adamc@462	3209
adam@1877	3210 static void set_cookie(uw_context ctx) {
adam@1877	3211 if (ctx->usedSig)
adam@1877	3212 ctx->needsResig = 1;
adam@1877	3213 }
adam@1877	3214
adamc@1050	3215 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	3216 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3217 uw_write_header(ctx, c);
adamc@462	3218 uw_write_header(ctx, "=");
adamc@462	3219 uw_write_header(ctx, v);
adamc@466	3220 uw_write_header(ctx, "; path=");
adamc@466	3221 uw_write_header(ctx, prefix);
adamc@1050	3222 if (expires) {
adamc@1050	3223 char formatted[30];
adam@1392	3224 struct tm tm = {};
adam@1392	3225 tm.tm_isdst = -1;
adamc@1050	3226
adam@1365	3227 gmtime_r(&expires->seconds, &tm);
adamc@1050	3228
adamc@1050	3229 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3230
adamc@1050	3231 uw_write_header(ctx, "; expires=");
adamc@1050	3232 uw_write_header(ctx, formatted);
adamc@1050	3233 }
adamc@1050	3234 if (secure)
adamc@1050	3235 uw_write_header(ctx, "; secure");
adamc@462	3236 uw_write_header(ctx, "\r\n");
adam@1877	3237 set_cookie(ctx);
adamc@462	3238
adamc@462	3239 return uw_unit_v;
adamc@462	3240 }
adamc@667	3241
adamc@1050	3242 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3243 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3244 uw_write_header(ctx, c);
adamc@1050	3245 uw_write_header(ctx, "=; path=");
adamc@1050	3246 uw_write_header(ctx, prefix);
adamc@1052	3247 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3248 set_cookie(ctx);
adamc@1050	3249
adamc@1050	3250 return uw_unit_v;
adamc@1050	3251 }
adamc@1050	3252
adamc@1113	3253 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3254
adamc@682	3255 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3256 unsigned i;
adamc@682	3257 delta *d;
adamc@671	3258
adamc@682	3259 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3260 if (ctx->deltas[i].client == client)
adamc@682	3261 return &ctx->deltas[i];
adamc@671	3262
adamc@682	3263 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3264 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3265 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3266
adamc@682	3267 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3268 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3269 }
adamc@671	3270
adamc@682	3271 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3272 d->client = client;
adam@1369	3273 uw_buffer_reset(&d->msgs);
adamc@682	3274 return d;
adamc@671	3275 }
adamc@671	3276
adamc@668	3277 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3278 if (ctx->client == NULL)
adamc@682	3279 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3280
adamc@682	3281 return new_channel(ctx->client);
adamc@668	3282 }
adamc@668	3283
adamc@668	3284 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3285 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3286 size_t len;
adamc@682	3287 int preLen;
adamc@682	3288 char pre[INTS_MAX + 2];
adamc@668	3289
adamc@682	3290 len = strlen(msg);
adamc@682	3291
adamc@682	3292 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3293
adam@1369	3294 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3295 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3296 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3297
adamc@671	3298 return uw_unit_v;
adamc@668	3299 }
adamc@671	3300
adam@1327	3301 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3302 int i;
adamc@1131	3303 cleanup *cl;
adamc@1131	3304
adamc@1131	3305 if (ctx->client)
adamc@1131	3306 release_client(ctx->client);
adamc@1131	3307
adamc@1131	3308 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3309 cl->func(cl->arg);
adamc@1131	3310
adamc@1131	3311 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3312
adamc@1131	3313 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3314 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3315 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3316
adamc@1131	3317 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3318 if (ctx->transactionals[i].free)
adam@1327	3319 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3320
adam@1941	3321 if (ctx->app && ctx->transaction_started) {
adam@1941	3322 ctx->transaction_started = 0;
adam@1941	3323 return ctx->app->db_rollback(ctx);
adam@1941	3324 } else
adam@1941	3325 return 0;
adamc@1131	3326 }
adamc@1131	3327
adam@1956	3328 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	3329 const char uw_begin_html5[] = "<!DOCTYPE html><html>";
adam@1728	3330
adam@1877	3331 extern int uw_hash_blocksize;
adam@1877	3332
adam@1877	3333 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3334
adam@1877	3335 static char find_sig(char haystack) {
adam@1877	3336 int i;
adam@1877	3337 char *s = strstr(haystack, sig_intro);
adam@1877	3338
adam@1877	3339 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3340 return NULL;
phurst@1981	3341
adam@1877	3342 s += sizeof sig_intro - 1;
adam@1877	3343
adam@1877	3344 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3345 if (!isxdigit((int)s[i]))
adam@1877	3346 return NULL;
adam@1877	3347
adam@1877	3348 if (s[i] != '"')
adam@1877	3349 return NULL;
adam@1877	3350
adam@1877	3351 return s;
adam@1877	3352 }
adam@1877	3353
adam@2033	3354 static pthread_mutex_t message_send_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2033	3355
adam@1938	3356 int uw_commit(uw_context ctx) {
adamc@1104	3357 int i;
adam@1877	3358 char *sig;
adamc@1104	3359
adamc@1131	3360 if (uw_has_error(ctx)) {
adam@1327	3361 uw_rollback(ctx, 0);
adam@1938	3362 return 0;
adamc@1131	3363 }
adamc@1131	3364
adamc@1104	3365 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3366 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3367 if (ctx->transactionals[i].commit) {
adamc@1083	3368 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3369 if (uw_has_error(ctx)) {
adam@1327	3370 uw_rollback(ctx, 0);
adam@1938	3371 return 0;
adamc@1131	3372 }
adamc@1131	3373 }
adamc@771	3374
adam@2033	3375 // Here's an important lock to provide the abstraction that all messages from one transaction are sent as an atomic unit.
adam@2033	3376 if (ctx->used_deltas > 0)
adam@2033	3377 pthread_mutex_lock(&message_send_mutex);
adam@2033	3378
adam@2000	3379 if (ctx->transaction_started) {
adam@2000	3380 int code = ctx->app->db_commit(ctx);
adam@2000	3381
adam@2000	3382 if (code) {
adam@2033	3383 if (ctx->used_deltas > 0)
adam@2033	3384 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3385
adam@2000	3386 if (ctx->client)
adam@2000	3387 release_client(ctx->client);
adam@2000	3388
adam@2000	3389 if (code == -1) {
adam@2000	3390 // This case is for a serialization failure, which is not really an "error."
adam@2000	3391 // The transaction will restart, so we should rollback any transactionals
adam@2000	3392 // that triggered above.
adam@2000	3393
adam@2000	3394 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3395 if (ctx->transactionals[i].rollback != NULL)
adam@2000	3396 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2000	3397
adam@2000	3398 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3399 if (ctx->transactionals[i].free)
adam@2000	3400 ctx->transactionals[i].free(ctx->transactionals[i].data, 1);
adam@2000	3401
grrwlf@2030	3402 return 1;
adam@2000	3403 }
adam@2000	3404
adam@2000	3405 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3406 if (ctx->transactionals[i].free)
adam@2000	3407 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3408
adam@2000	3409 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@2000	3410 return 0;
adam@2000	3411 }
adam@2000	3412 }
adam@2000	3413
adamc@1104	3414 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3415 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3416 if (ctx->transactionals[i].commit) {
adamc@1083	3417 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3418 if (uw_has_error(ctx)) {
adam@2033	3419 if (ctx->used_deltas > 0)
adam@2033	3420 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3421
adam@2033	3422 if (ctx->client)
adam@2033	3423 release_client(ctx->client);
adam@2033	3424
adam@2033	3425 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3426 if (ctx->transactionals[i].rollback != NULL)
adam@2033	3427 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2033	3428
adam@2033	3429 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3430 if (ctx->transactionals[i].free)
adam@2033	3431 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3432
adam@1938	3433 return 0;
adamc@1131	3434 }
adamc@1131	3435 }
adamc@1131	3436
adamc@682	3437 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3438 delta *d = &ctx->deltas[i];
adamc@682	3439 client *c = find_client(d->client);
adamc@682	3440
adam@1551	3441 assert (c != NULL);
adam@1551	3442 assert(c->mode == USED);
adamc@682	3443
adam@1447	3444 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3445 }
adamc@682	3446
adam@2033	3447 if (ctx->used_deltas > 0)
adam@2033	3448 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3449
adamc@682	3450 if (ctx->client)
adamc@685	3451 release_client(ctx->client);
adamc@771	3452
adamc@1104	3453 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3454 if (ctx->transactionals[i].free)
adam@1327	3455 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3456
vshabanoff@1726	3457 uw_check(ctx, 1);
vshabanoff@1726	3458 *ctx->page.front = 0;
adam@1413	3459
adam@1956	3460 if (!ctx->returning_indirectly
adam@1956	3461 && (ctx->app->is_html5
adam@1956	3462 ? !strncmp(ctx->page.start, uw_begin_html5, sizeof uw_begin_html5 - 1)
adam@1956	3463 : !strncmp(ctx->page.start, uw_begin_xhtml, sizeof uw_begin_xhtml - 1))) {
adam@1728	3464 char *s;
adam@1728	3465
adam@1728	3466 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1956	3467 s = ctx->page.start + (ctx->app->is_html5 ? sizeof uw_begin_html5 - 1 : sizeof uw_begin_xhtml - 1);
adam@1728	3468 s = strchr(s, '<');
adam@1728	3469 if (s == NULL) {
adam@1728	3470 // Weird. Document has no tags!
adam@1728	3471
adam@1728	3472 uw_write(ctx, "<head></head><body></body>");
adam@1728	3473 uw_check(ctx, 1);
adam@1728	3474 *ctx->page.front = 0;
adam@1728	3475 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3476 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3477
adam@1729	3478 // Any freeform JavaScript to include?
adam@1729	3479 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3480 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3481 size_t lenP = lenH + 40 + len;
adam@1729	3482 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3483
adam@1729	3484 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3485 start += ctx->page.start - oldPage;
adam@1729	3486 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3487 ctx->page.front += lenP;
adam@1729	3488 memcpy(start, ctx->script_header, lenH);
adam@1729	3489 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3490 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3491 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3492 } else {
adam@1729	3493 size_t lenH = strlen(ctx->script_header);
adam@1729	3494 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3495
adam@1729	3496 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3497 start += ctx->page.start - oldPage;
adam@1729	3498 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3499 ctx->page.front += lenH;
adam@1729	3500 memcpy(start, ctx->script_header, lenH);
adam@1729	3501 }
adam@1728	3502 } else {
adam@1728	3503 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3504
adam@1729	3505 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3506 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3507 size_t lenP = lenH + 53 + len;
adam@1729	3508 char start = s, oldPage = ctx->page.start;
adam@1729	3509
adam@1729	3510 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3511 start += ctx->page.start - oldPage;
adam@1729	3512 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3513 ctx->page.front += lenP;
adam@1729	3514 memcpy(start, "<head>", 6);
adam@1729	3515 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3516 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3517 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3518 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3519 } else {
adam@1729	3520 size_t lenH = strlen(ctx->script_header);
adam@1729	3521 size_t lenP = lenH + 13;
adam@1729	3522 char start = s, oldPage = ctx->page.start;
adam@1729	3523
adam@1729	3524 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3525 start += ctx->page.start - oldPage;
adam@1729	3526 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3527 ctx->page.front += lenP;
adam@1729	3528 memcpy(start, "<head>", 6);
adam@1729	3529 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3530 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3531 }
adamc@916	3532 }
adamc@916	3533 }
adam@1877	3534
adam@1877	3535 if (ctx->needsResig) {
adam@1877	3536 sig = find_sig(ctx->page.start);
adam@1877	3537 if (sig) {
adam@1877	3538 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3539
adam@1877	3540 do {
adam@1877	3541 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3542 sig = find_sig(sig);
adam@1877	3543 } while (sig);
adam@1877	3544 }
adam@1877	3545 }
adam@1938	3546
adam@1938	3547 return 0;
adamc@671	3548 }
adamc@671	3549
adamc@683	3550
adamc@1113	3551 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3552
adam@2001	3553 int uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3554 uw_callback_with_retry free) {
adamc@771	3555 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3556 if (ctx->used_transactionals+1 > uw_transactionals_max)
adam@2001	3557 // Exceeded limit on number of transactionals.
adam@2001	3558 return -1;
adamc@1084	3559 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3560 ++ctx->n_transactionals;
adamc@771	3561 }
adamc@771	3562
adamc@771	3563 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3564 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3565 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3566 ctx->transactionals[ctx->used_transactionals++].free = free;
adam@2001	3567
adam@2001	3568 return 0;
adamc@771	3569 }
adamc@771	3570
adamc@683	3571
adamc@683	3572 // "Garbage collection"
adamc@683	3573
adamc@1121	3574 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3575 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3576
adamc@1121	3577 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3578 int r = setjmp(ctx->jmp_buf);
adamc@683	3579
adamc@1121	3580 if (r == 0)
adamc@1121	3581 uw_do_expunge(ctx, cli, data);
adamc@1121	3582 else
adamc@1121	3583 ctx->app->db_rollback(ctx);
adamc@1121	3584
adamc@1121	3585 uw_post_expunge(ctx, data);
adamc@683	3586
adamc@683	3587 return r;
adamc@683	3588 }
adamc@683	3589
adamc@683	3590 void uw_prune_clients(uw_context ctx) {
adamc@683	3591 client c, next, *prev = NULL;
adamc@683	3592 time_t cutoff;
adamc@683	3593
adamc@1094	3594 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3595
adamc@683	3596 pthread_mutex_lock(&clients_mutex);
adam@1707	3597 pruning_thread = pthread_self();
adam@1707	3598 pruning_thread_initialized = 1;
adamc@683	3599
adamc@683	3600 for (c = clients_used; c; c = next) {
adamc@683	3601 next = c->next;
adamc@683	3602 pthread_mutex_lock(&c->lock);
adamc@685	3603 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3604 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3605 if (prev)
adamc@683	3606 prev->next = next;
adamc@683	3607 else
adamc@683	3608 clients_used = next;
adamc@683	3609 while (fk == UNLIMITED_RETRY) {
adam@1941	3610 uw_reset(ctx);
adamc@1121	3611 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3612 if (fk == UNLIMITED_RETRY)
adamc@684	3613 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3614 }
adamc@684	3615 if (fk == SUCCESS)
adamc@684	3616 free_client(c);
adamc@1121	3617 else
adamc@856	3618 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3619 }
adamc@683	3620 else
adamc@683	3621 prev = c;
adamc@683	3622 pthread_mutex_unlock(&c->lock);
adamc@683	3623 }
adamc@683	3624
adamc@683	3625 pthread_mutex_unlock(&clients_mutex);
adamc@683	3626 }
adamc@687	3627
adamc@687	3628 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3629 int r = setjmp(ctx->jmp_buf);
adamc@687	3630
adamc@687	3631 if (r == 0) {
adam@1936	3632 uw_ensure_transaction(ctx);
adamc@1094	3633 ctx->app->initializer(ctx);
adamc@1094	3634 if (ctx->app->db_commit(ctx))
adamc@687	3635 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3636 }
adamc@687	3637
adamc@687	3638 return r;
adamc@687	3639 }
adamc@717	3640
adamc@1065	3641 static int url_bad(uw_Basis_string s) {
adamc@1065	3642 for (; *s; ++s)
adamc@1153	3643 if (!isgraph((int)*s))
adamc@1065	3644 return 1;
adamc@1065	3645
adamc@1065	3646 return 0;
adamc@1065	3647 }
adamc@1065	3648
adamc@717	3649 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3650 if (url_bad(s))
adamc@1065	3651 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3652 if (ctx->app->check_url(s))
adamc@770	3653 return s;
adamc@770	3654 else
adamc@770	3655 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3656 }
adamc@734	3657
adamc@770	3658 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3659 if (url_bad(s))
adamc@1065	3660 return NULL;
adamc@1094	3661 if (ctx->app->check_url(s))
adamc@770	3662 return s;
adamc@770	3663 else
adamc@770	3664 return NULL;
adamc@770	3665 }
adamc@770	3666
adam@1465	3667 static int mime_format(const char *s) {
adamc@770	3668 for (; *s; ++s)
grrwlf@2024	3669 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.' && *s != '+')
adamc@770	3670 return 0;
adamc@770	3671
adamc@770	3672 return 1;
adamc@770	3673 }
adamc@770	3674
adamc@741	3675 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3676 if (!mime_format(s))
adamc@770	3677 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3678
adamc@1094	3679 if (ctx->app->check_mime(s))
adamc@770	3680 return s;
adamc@770	3681 else
adamc@770	3682 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3683 }
adamc@770	3684
adamc@770	3685 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3686 if (!mime_format(s))
adamc@770	3687 return NULL;
adamc@770	3688
adamc@1094	3689 if (ctx->app->check_mime(s))
adamc@770	3690 return s;
adamc@770	3691 else
adamc@770	3692 return NULL;
adamc@741	3693 }
adamc@741	3694
adam@1465	3695 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3696 if (!mime_format(s))
adam@1465	3697 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3698
adam@1465	3699 if (ctx->app->check_requestHeader(s))
adam@1465	3700 return s;
adam@1465	3701 else
adam@1465	3702 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3703 }
adam@1465	3704
adam@1465	3705 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3706 if (!mime_format(s))
adam@1465	3707 return NULL;
adam@1465	3708
adam@1465	3709 if (ctx->app->check_requestHeader(s))
adam@1465	3710 return s;
adam@1465	3711 else
adam@1465	3712 return NULL;
adam@1465	3713 }
adam@1465	3714
adam@1465	3715 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3716 if (!mime_format(s))
adam@1465	3717 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3718
adam@1465	3719 if (ctx->app->check_responseHeader(s))
adam@1465	3720 return s;
adam@1465	3721 else
adam@1465	3722 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3723 }
adam@1465	3724
adam@1799	3725 static int envVar_format(const char *s) {
adam@1799	3726 for (; *s; ++s)
adam@1799	3727 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3728 return 0;
adam@1799	3729
adam@1799	3730 return 1;
adam@1799	3731 }
adam@1799	3732
adam@1465	3733 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3734 if (!envVar_format(s))
adam@1465	3735 return NULL;
adam@1465	3736
adam@1465	3737 if (ctx->app->check_responseHeader(s))
adam@1465	3738 return s;
adam@1465	3739 else
adam@1465	3740 return NULL;
adam@1465	3741 }
adam@1465	3742
adam@1799	3743 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3744 if (!envVar_format(s))
adam@1799	3745 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3746
adam@1799	3747 if (ctx->app->check_envVar(s))
adam@1799	3748 return s;
adam@1799	3749 else
adam@1799	3750 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3751 }
adam@1799	3752
adam@1799	3753 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3754 if (!mime_format(s))
adam@1799	3755 return NULL;
adam@1799	3756
adam@1799	3757 if (ctx->app->check_envVar(s))
adam@1799	3758 return s;
adam@1799	3759 else
adam@1799	3760 return NULL;
adam@1799	3761 }
adam@1799	3762
adam@1465	3763 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3764 return uw_Basis_requestHeader(ctx, name);
adam@1465	3765 }
adam@1465	3766
adam@1465	3767 static int mime_value_format(const char *s) {
adam@1465	3768 for (; *s; ++s)
adam@1465	3769 if (s == '\r' \|\| s == '\n')
adam@1465	3770 return 0;
adam@1465	3771
adam@1465	3772 return 1;
adam@1465	3773 }
adam@1465	3774
adam@1465	3775 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3776 if (!mime_value_format(value))
adam@1465	3777 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3778
adam@1465	3779 uw_write_header(ctx, name);
adam@1465	3780 uw_write_header(ctx, ": ");
adam@1465	3781 uw_write_header(ctx, value);
adam@1465	3782 uw_write_header(ctx, "\r\n");
adam@1465	3783
adam@1465	3784 return uw_unit_v;
adam@1465	3785 }
adam@1465	3786
adam@1799	3787 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1993	3788 if (ctx->get_env)
adam@1993	3789 return ctx->get_env(ctx->get_env_data, name);
adam@1993	3790 else
adam@1994	3791 return getenv(name);
adam@1799	3792 }
adam@1799	3793
adamc@734	3794 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3795 return s ? s : "";
adamc@734	3796 }
adamc@734	3797
adamc@734	3798 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3799 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3800 int i;
phurst@1981	3801
adamc@734	3802 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3803 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3804
adamc@734	3805 return r;
adamc@734	3806 }
adamc@734	3807
adam@1512	3808 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3809 * optimizations that would enable timing attacks. See:
adam@1512	3810 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3811 */
adam@1512	3812 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3813 int i, x = 0, len1 = strlen(s1);
adam@1512	3814
adam@1512	3815 if (len1 != strlen(s2)) return 0;
adam@1512	3816
adam@1512	3817 for (i = 0; i < len1; ++i) {
adam@1512	3818 __asm__ __volatile__ ("");
adam@1512	3819 x \|= s1[i] ^ s2[i];
adam@1512	3820 }
adam@1512	3821
adam@1512	3822 return x == 0;
adam@1512	3823 }
adam@1512	3824
adamc@734	3825 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3826 ctx->usedSig = 1;
adamc@1094	3827 return ctx->app->cookie_sig(ctx);
adamc@734	3828 }
adamc@737	3829
adamc@737	3830 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3831 return f.name;
adamc@737	3832 }
adamc@737	3833
adamc@740	3834 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3835 return f.type;
adamc@740	3836 }
adamc@740	3837
adamc@745	3838 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3839 return b.size;
adamc@745	3840 }
adamc@745	3841
adamc@1119	3842 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3843 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3844
adamc@1119	3845 return b;
adamc@1119	3846 }
adamc@1119	3847
adamc@737	3848 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3849 return f.data;
adamc@737	3850 }
adamc@741	3851
adam@1347	3852 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3853 return pb.type;
adam@1347	3854 }
adam@1347	3855
adam@1347	3856 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3857 return pb.data;
adam@1347	3858 }
adam@1347	3859
adam@1471	3860 static char *old_headers(uw_context ctx) {
adam@1471	3861 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3862 return NULL;
adam@1471	3863 else {
adam@1471	3864 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3865
adam@1471	3866 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3867 return NULL;
adam@1471	3868 else {
adam@1471	3869 s = strchr(s+15, '\n');
adam@1471	3870 if (s == NULL)
adam@1471	3871 return NULL;
adam@1471	3872 else
adam@1471	3873 return uw_strdup(ctx, s+1);
adam@1471	3874 }
adam@1471	3875 }
adam@1471	3876 }
adam@1471	3877
adamc@741	3878 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3879 cleanup *cl;
adamc@741	3880 int len;
adam@1471	3881 char *oldh;
adamc@741	3882
adam@1451	3883 if (!ctx->allowed_to_return_indirectly)
adam@1451	3884 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3885
adamc@1065	3886 ctx->returning_indirectly = 1;
adam@1471	3887 oldh = old_headers(ctx);
adam@1369	3888 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3889 uw_buffer_reset(&ctx->page);
adamc@741	3890
adamc@856	3891 uw_write_header(ctx, on_success);
adamc@856	3892 uw_write_header(ctx, "Content-Type: ");
adamc@741	3893 uw_write_header(ctx, mimeType);
adam@1934	3894 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369	3895 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3896 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3897 ctx->outHeaders.front += len;
adamc@1066	3898 uw_write_header(ctx, "\r\n");
adam@1471	3899 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3900
adam@1369	3901 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3902
adamc@741	3903 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3904 cl->func(cl->arg);
adamc@741	3905
adamc@741	3906 ctx->cleanup_front = ctx->cleanup;
adamc@741	3907
adamc@1065	3908 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3909 }
adamc@1065	3910
adam@2046	3911 void uw_replace_page(uw_context ctx, const char *data, size_t size) {
adam@2046	3912 uw_buffer_reset(&ctx->page);
adam@2046	3913 ctx_uw_buffer_append(ctx, "page", &ctx->page, data, size);
adam@2046	3914 }
adam@2046	3915
adam@1932	3916 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932	3917 cleanup *cl;
adam@1932	3918 int len;
adam@1932	3919 char *oldh;
adam@1932	3920
adam@1932	3921 if (!ctx->allowed_to_return_indirectly)
adam@1932	3922 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932	3923
adam@1932	3924 ctx->returning_indirectly = 1;
adam@1932	3925 oldh = old_headers(ctx);
adam@1932	3926 uw_buffer_reset(&ctx->outHeaders);
adam@1932	3927
adam@1932	3928 uw_write_header(ctx, on_success);
adam@1932	3929 uw_write_header(ctx, "Content-Type: ");
adam@1932	3930 uw_write_header(ctx, mimeType);
adam@1934	3931 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932	3932 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932	3933 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932	3934 ctx->outHeaders.front += len;
adam@1932	3935 uw_write_header(ctx, "\r\n");
adam@1932	3936 if (oldh) uw_write_header(ctx, oldh);
adam@1932	3937
adam@1932	3938 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932	3939 cl->func(cl->arg);
adam@1932	3940
adam@1932	3941 ctx->cleanup_front = ctx->cleanup;
adam@1932	3942
adam@1932	3943 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932	3944 }
adam@1932	3945
adamc@1065	3946 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3947 cleanup *cl;
adamc@1066	3948 char *s;
adam@1471	3949 char *oldh;
adamc@1065	3950
adam@1451	3951 if (!ctx->allowed_to_return_indirectly)
adam@1451	3952 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3953
adamc@1065	3954 ctx->returning_indirectly = 1;
adam@1471	3955 oldh = old_headers(ctx);
adam@1369	3956 uw_buffer_reset(&ctx->page);
adam@1369	3957 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3958 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3959 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3960 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3961
adam@1409	3962 if (on_success[0])
adam@1409	3963 uw_write_header(ctx, on_redirect);
adam@1409	3964 else
adam@1409	3965 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3966 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3967 if (s) {
adamc@1066	3968 char *s2;
adam@1409	3969 if (s[0] == '\n') ++s;
adam@1409	3970 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3971 *s2 = 0;
adamc@1066	3972 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3973 uw_write_header(ctx, s);
adamc@1066	3974 uw_write_header(ctx, "\n");
adamc@1066	3975 }
adamc@1066	3976 }
adamc@1066	3977 }
adamc@1066	3978
adamc@1065	3979 uw_write_header(ctx, "Location: ");
adamc@1065	3980 uw_write_header(ctx, url);
adamc@1065	3981 uw_write_header(ctx, "\r\n\r\n");
adam@1471	3982 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	3983
adamc@1065	3984 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3985 cl->func(cl->arg);
adamc@1065	3986
adamc@1065	3987 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3988
adamc@1065	3989 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3990 }
adamc@874	3991
adamc@874	3992 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	3993 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	3994
adamc@874	3995 for (; *s; ++s) {
adamc@874	3996 if (s[0] == '\'') {
adamc@874	3997 *r++ = '\'';
adamc@874	3998 for (++s; *s; ++s) {
adamc@874	3999 if (s[0] == '\'') {
adamc@874	4000 *r++ = '\'';
adamc@874	4001 break;
adamc@874	4002 } else if (s[0] == '\\') {
adam@1467	4003 *r++ = '\\';
adam@1467	4004 *r++ = s[1];
adam@1467	4005 ++s;
adamc@874	4006 } else
adamc@874	4007 *r++ = s[0];
adamc@874	4008 }
adamc@874	4009 if (*s == 0) break;
adam@1467	4010 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	4011 s += 3;
adamc@874	4012 else
adamc@874	4013 *r++ = s[0];
adamc@874	4014 }
adamc@874	4015
adam@1467	4016 *r = 0;
adam@1467	4017 return ret;
adamc@874	4018 }
adamc@874	4019
adamc@922	4020 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	4021 va_list ap;
adamc@922	4022 size_t len = 1;
adamc@922	4023 char s, r, *s2;
phurst@1981	4024
adamc@922	4025 va_start(ap, ctx);
adamc@922	4026 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4027 len += strlen(s);
adamc@922	4028 va_end(ap);
adamc@922	4029
adamc@922	4030 r = uw_malloc(ctx, len);
adamc@922	4031 va_start(ap, ctx);
adamc@922	4032 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4033 while (*s)
adamc@922	4034 s2++ = s++;
adamc@922	4035 va_end(ap);
adamc@922	4036 *s2 = 0;
adamc@922	4037
adamc@922	4038 return r;
adamc@922	4039 }
adamc@1006	4040
adam@1365	4041 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	4042
adamc@1006	4043 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	4044 uw_Basis_time r = { time(NULL) };
adam@1365	4045 return r;
adamc@1006	4046 }
adamc@1061	4047
adam@1369	4048 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	4049 tm.seconds += n;
adam@1365	4050 return tm;
adamc@1138	4051 }
adamc@1138	4052
adam@1514	4053 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	4054 return difftime(tm2.seconds, tm1.seconds);
adam@1514	4055 }
adam@1514	4056
adam@1685	4057 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	4058 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	4059 }
adam@1685	4060
adam@1685	4061 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	4062 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	4063 }
adam@1685	4064
adam@1514	4065 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	4066 return tm.seconds;
adam@1514	4067 }
adam@1514	4068
phurst@1971	4069 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	4070 struct tm tm = { .tm_year = year - 1900, .tm_mon = month, .tm_mday = day,
adam@2015	4071 .tm_hour = hour, .tm_min = minute, .tm_sec = second,
adam@2015	4072 .tm_isdst = -1 };
phurst@1984	4073 uw_Basis_time r = { timelocal(&tm) };
phurst@1971	4074 return r;
phurst@1971	4075 }
phurst@1971	4076
phurst@1971	4077 uw_Basis_int uw_Basis_datetimeYear(uw_context ctx, uw_Basis_time time) {
phurst@1971	4078 struct tm tm;
phurst@1982	4079 localtime_r(&time.seconds, &tm);
phurst@1971	4080 return tm.tm_year + 1900;
phurst@1971	4081 }
phurst@1971	4082
phurst@1971	4083 uw_Basis_int uw_Basis_datetimeMonth(uw_context ctx, uw_Basis_time time) {
phurst@1971	4084 struct tm tm;
phurst@1982	4085 localtime_r(&time.seconds, &tm);
phurst@1971	4086 return tm.tm_mon;
phurst@1971	4087 }
phurst@1971	4088
phurst@1971	4089 uw_Basis_int uw_Basis_datetimeDay(uw_context ctx, uw_Basis_time time) {
phurst@1971	4090 struct tm tm;
phurst@1982	4091 localtime_r(&time.seconds, &tm);
phurst@1971	4092 return tm.tm_mday;
phurst@1971	4093 }
phurst@1971	4094
phurst@1971	4095 uw_Basis_int uw_Basis_datetimeHour(uw_context ctx, uw_Basis_time time) {
phurst@1971	4096 struct tm tm;
phurst@1982	4097 localtime_r(&time.seconds, &tm);
phurst@1971	4098 return tm.tm_hour;
phurst@1971	4099 }
phurst@1971	4100
phurst@1971	4101 uw_Basis_int uw_Basis_datetimeMinute(uw_context ctx, uw_Basis_time time) {
phurst@1971	4102 struct tm tm;
phurst@1982	4103 localtime_r(&time.seconds, &tm);
phurst@1971	4104 return tm.tm_min;
phurst@1971	4105 }
phurst@1971	4106
phurst@1971	4107 uw_Basis_int uw_Basis_datetimeSecond(uw_context ctx, uw_Basis_time time) {
phurst@1971	4108 struct tm tm;
phurst@1982	4109 localtime_r(&time.seconds, &tm);
phurst@1971	4110 return tm.tm_sec;
phurst@1971	4111 }
phurst@1971	4112
phurst@1973	4113 uw_Basis_int uw_Basis_datetimeDayOfWeek(uw_context ctx, uw_Basis_time time) {
phurst@1973	4114 struct tm tm;
phurst@1982	4115 localtime_r(&time.seconds, &tm);
phurst@1973	4116 return tm.tm_wday;
phurst@1973	4117 }
phurst@1971	4118
phurst@1971	4119
adamc@1061	4120 void uw_get_global(uw_context ctx, char name) {
adamc@1061	4121 int i;
adamc@1061	4122
adamc@1061	4123 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4124 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	4125 return ctx->globals[i].data;
adamc@1061	4126
adamc@1061	4127 return NULL;
adamc@1061	4128 }
adamc@1061	4129
adamc@1113	4130 size_t uw_globals_max = SIZE_MAX;
adamc@1113	4131
adamc@1061	4132 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	4133 int i;
adamc@1061	4134
adamc@1061	4135 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4136 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	4137 if (ctx->globals[i].free)
adamc@1061	4138 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	4139 ctx->globals[i].data = data;
adamc@1061	4140 ctx->globals[i].free = free;
adamc@1061	4141 return;
adamc@1061	4142 }
adamc@1089	4143
adamc@1113	4144 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	4145 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	4146
adamc@1061	4147 ++ctx->n_globals;
adamc@1061	4148 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	4149 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	4150 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	4151 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	4152 }
adamc@1061	4153
adamc@1061	4154 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	4155 return !!isalnum((int)c);
adamc@1061	4156 }
adamc@1061	4157
adamc@1061	4158 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	4159 return !!isalpha((int)c);
adamc@1061	4160 }
adamc@1061	4161
adamc@1061	4162 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	4163 return !!isblank((int)c);
adamc@1061	4164 }
adamc@1061	4165
adamc@1061	4166 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	4167 return !!iscntrl((int)c);
adamc@1061	4168 }
adamc@1061	4169
adamc@1061	4170 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4171 return !!isdigit((int)c);
adamc@1061	4172 }
adamc@1061	4173
adamc@1061	4174 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	4175 return !!isgraph((int)c);
adamc@1061	4176 }
adamc@1061	4177
adamc@1061	4178 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4179 return !!islower((int)c);
adamc@1061	4180 }
adamc@1061	4181
adamc@1061	4182 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	4183 return !!isprint((int)c);
adamc@1061	4184 }
adamc@1061	4185
adamc@1061	4186 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	4187 return !!ispunct((int)c);
adamc@1061	4188 }
adamc@1061	4189
adamc@1061	4190 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	4191 return !!isspace((int)c);
adamc@1061	4192 }
adamc@1063	4193
adamc@1061	4194 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4195 return !!isupper((int)c);
adamc@1061	4196 }
adamc@1061	4197
adamc@1061	4198 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4199 return !!isxdigit((int)c);
adamc@1061	4200 }
adamc@1061	4201
adamc@1061	4202 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4203 return tolower((int)c);
adamc@1061	4204 }
adamc@1061	4205
adamc@1061	4206 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4207 return toupper((int)c);
adamc@1061	4208 }
adamc@1066	4209
adamc@1128	4210 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	4211 return (unsigned char)c;
adamc@1128	4212 }
adamc@1128	4213
adamc@1128	4214 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	4215 return n;
adamc@1128	4216 }
adamc@1128	4217
adamc@1066	4218 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	4219 return ctx->current_url;
adamc@1066	4220 }
adamc@1066	4221
adamc@1066	4222 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	4223 ctx->current_url = s;
adamc@1066	4224 }
adamc@1114	4225
adamc@1114	4226 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	4227 ctx->deadline = n;
adamc@1114	4228 }
adamc@1114	4229
adamc@1114	4230 void uw_check_deadline(uw_context ctx) {
adamc@1114	4231 if (uw_time > ctx->deadline)
adamc@1114	4232 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	4233 }
adamc@1115	4234
adamc@1115	4235 size_t uw_database_max = SIZE_MAX;
adamc@1120	4236
adam@1389	4237 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@1389	4238 fprintf(stderr, "%s\n", s);
adam@1389	4239 return 0;
adam@1389	4240 }
adam@1389	4241
adamc@1120	4242 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
grrwlf@1997	4243 if (ctx->loggers->log_debug)
grrwlf@1997	4244 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@1334	4245 else
adam@1334	4246 fprintf(stderr, "%s\n", s);
adamc@1120	4247 return uw_unit_v;
adamc@1120	4248 }
adamc@1250	4249
adamc@1250	4250 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@2104	4251 int r = my_rand();
adam@2104	4252
adam@2104	4253 if (r >= 0)
adam@2104	4254 return r;
adam@1486	4255 else
adam@1486	4256 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	4257 }
adam@1347	4258
adam@1347	4259 void uw_noPostBody(uw_context ctx) {
adam@1347	4260 ctx->hasPostBody = 0;
adam@1347	4261 }
adam@1347	4262
adam@1347	4263 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	4264 ctx->hasPostBody = 1;
adam@1347	4265 ctx->postBody = pb;
adam@1347	4266 }
adam@1347	4267
adam@1347	4268 int uw_hasPostBody(uw_context ctx) {
adam@1347	4269 return ctx->hasPostBody;
adam@1347	4270 }
adam@1347	4271
adam@1386	4272 void uw_isPost(uw_context ctx) {
adam@1386	4273 ctx->isPost = 1;
adam@1386	4274 }
adam@1386	4275
adam@1386	4276 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4277 return ctx->isPost;
adam@1386	4278 }
adam@1386	4279
adam@1485	4280 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4281 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4282 }
adam@1485	4283
adam@1370	4284 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4285 ctx->queryString = s;
adam@1370	4286 }
adam@1370	4287
adam@1370	4288 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4289 return ctx->queryString;
adam@1370	4290 }
adam@1370	4291
adam@1347	4292 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4293 if (ctx->hasPostBody)
adam@1347	4294 return ctx->postBody;
adam@1347	4295 else
adam@1347	4296 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4297 }
adam@1349	4298
adam@1349	4299 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4300 int r = setjmp(ctx->jmp_buf);
adam@1349	4301
adam@1349	4302 if (r == 0) {
adam@1936	4303 uw_ensure_transaction(ctx);
adam@1418	4304
adam@1349	4305 callback(ctx);
adam@1349	4306 }
adam@1349	4307
adam@1349	4308 return r;
adam@1349	4309 }
adam@1360	4310
adam@1360	4311 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4312 char buf[14];
adam@1397	4313 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4314 }
adam@1365	4315
adam@1365	4316 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4317 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	4318 }
adam@1365	4319
adam@1365	4320 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@2034	4321 return !!(t1.seconds < t2.seconds \|\| (t1.seconds == t2.seconds && t1.microseconds < t2.microseconds));
adam@1365	4322 }
adam@1365	4323
adam@1365	4324 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4325 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4326 }
adam@1365	4327
adam@1372	4328 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4329 struct tm stm = {};
adam@1375	4330 char *end = strchr(s, 0);
adam@1449	4331 stm.tm_isdst = -1;
adam@1375	4332
adam@1632	4333 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4334 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4335
kkallio@1448	4336 r->seconds = timegm(&stm);
adam@1373	4337 r->microseconds = 0;
adam@1373	4338
adam@1373	4339 return r;
adam@1374	4340 }
adam@1374	4341 else
adam@1373	4342 return NULL;
adam@1372	4343 }
adam@1407	4344
adam@1407	4345 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4346 int r = setjmp(ctx->jmp_buf);
adam@1407	4347
adam@1407	4348 if (ctx->app->on_error) {
adam@1407	4349 if (r == 0) {
adam@1936	4350 uw_ensure_transaction(ctx);
adam@1407	4351
adam@1409	4352 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4353 if (on_success[0])
adam@1409	4354 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4355 else
adam@1409	4356 uw_write_header(ctx, "Status: ");
adam@1409	4357 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919	4358 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1956	4359 uw_write(ctx, ctx->app->is_html5 ? uw_begin_html5 : uw_begin_xhtml);
adam@1407	4360 ctx->app->on_error(ctx, msg);
adam@1407	4361 uw_write(ctx, "</html>");
adam@1407	4362 }
adam@1407	4363
adam@1407	4364 return r;
adam@1407	4365 } else
adam@1407	4366 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4367 }
adam@1451	4368
adam@1451	4369 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4370 ctx->allowed_to_return_indirectly = 1;
adam@1451	4371 }
adam@1483	4372
adam@1556	4373 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4374 int len;
adam@1703	4375 char *r;
adam@1703	4376
adam@1703	4377 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4378 r = ctx->heap.front;
adam@1703	4379 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4380 ctx->heap.front += len+1;
adam@1703	4381 return r;
adam@1556	4382 }
adam@1571	4383
adam@1571	4384 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4385 return n;
adam@1571	4386 }
adam@1571	4387
adam@1571	4388 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4389 return ceil(n);
adam@1571	4390 }
adam@1571	4391
adam@1571	4392 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4393 return trunc(n);
adam@1571	4394 }
adam@1571	4395
adam@1571	4396 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4397 return round(n);
adam@1571	4398 }
adam@1755	4399
adam@1755	4400 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755	4401 char *p;
adam@1755	4402
adam@1755	4403 for (p = s; *p; ++p) {
adam@1755	4404 char c = *p;
adam@1801	4405 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755	4406 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4407 }
adam@1755	4408
adam@1755	4409 return s;
adam@1755	4410 }
adam@1755	4411
adam@1755	4412 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4413 char *p;
adam@1755	4414
adam@1755	4415 for (p = s; *p; ++p) {
adam@1755	4416 char c = *p;
adam@1801	4417 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4418 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4419 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4420 }
adam@1755	4421
adam@1755	4422 return s;
adam@1755	4423 }
adam@1755	4424
adam@1755	4425 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4426 char *p;
adam@1755	4427
adam@1755	4428 if (!*s)
adam@1755	4429 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4430
adam@1801	4431 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4432 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4433
adam@1755	4434 for (p = s; *p; ++p) {
adam@1755	4435 char c = *p;
adam@1801	4436 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4437 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4438 }
adam@1755	4439
adam@1755	4440 return s;
adam@1755	4441 }
adam@1787	4442
adam@1787	4443 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4444 return f.name;
adam@1787	4445 }
adam@1787	4446
adam@1787	4447 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4448 return f.value;
adam@1787	4449 }
adam@1787	4450
adam@1787	4451 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4452 return f.remaining;
adam@1787	4453 }
adam@1787	4454
adam@1787	4455 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4456 char *unurl;
adam@1787	4457 uw_Basis_postField *f;
adam@1787	4458
adam@1788	4459 if (!ctx->hasPostBody)
adam@1788	4460 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4461
adam@1788	4462 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4463 return NULL;
adam@1787	4464
adam@1787	4465 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4466 unurl = s;
adam@1787	4467 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4468 s = strchr(s, 0);
adam@1788	4469 if (!s)
adam@1788	4470 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4471 ++s;
adam@1788	4472 unurl = s;
adam@1788	4473 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4474 s = strchr(s, 0);
adam@1788	4475 if (!s)
adam@1788	4476 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4477 f->remaining = s+1;
adam@1787	4478
adam@1787	4479 return f;
adam@1787	4480 }
adam@2008	4481
adam@2008	4482 uw_Basis_string uw_Basis_blessData(uw_context ctx, uw_Basis_string s) {
adam@2008	4483 char *p = s;
adam@2008	4484
adam@2008	4485 for (; *p; ++p)
adam@2008	4486 if (!isalnum(p) && p != '-' && *p != '_')
adam@2008	4487 uw_error(ctx, FATAL, "Illegal HTML5 data-* attribute: %s", s);
adam@2008	4488
adam@2008	4489 return s;
adam@2008	4490 }
adam@2073	4491
adam@2073	4492 int uw_remoteSock(uw_context ctx) {
adam@2073	4493 return ctx->remoteSock;
adam@2073	4494 }
adam@2073	4495
adam@2073	4496 void uw_set_remoteSock(uw_context ctx, int sock) {
adam@2073	4497 ctx->remoteSock = sock;
adam@2073	4498 }
ziv@2234	4499
ziv@2234	4500
ziv@2234	4501 // Sqlcache
ziv@2234	4502
ziv@2234	4503 void listDelete(CacheList list, CacheEntry entry) {
ziv@2234	4504 if (list->first == entry) {
ziv@2234	4505 list->first = entry->next;
ziv@2234	4506 }
ziv@2234	4507 if (list->last == entry) {
ziv@2234	4508 list->last = entry->prev;
ziv@2234	4509 }
ziv@2234	4510 if (entry->prev) {
ziv@2234	4511 entry->prev->next = entry->next;
ziv@2234	4512 }
ziv@2234	4513 if (entry->next) {
ziv@2234	4514 entry->next->prev = entry->prev;
ziv@2234	4515 }
ziv@2234	4516 entry->prev = NULL;
ziv@2234	4517 entry->next = NULL;
ziv@2234	4518 --(list->size);
ziv@2234	4519 }
ziv@2234	4520
ziv@2234	4521 void listAdd(CacheList list, CacheEntry entry) {
ziv@2234	4522 if (list->last) {
ziv@2234	4523 list->last->next = entry;
ziv@2234	4524 entry->prev = list->last;
ziv@2234	4525 list->last = entry;
ziv@2234	4526 } else {
ziv@2234	4527 list->first = entry;
ziv@2234	4528 list->last = entry;
ziv@2234	4529 }
ziv@2234	4530 ++(list->size);
ziv@2234	4531 }
ziv@2234	4532
ziv@2234	4533 void listBump(CacheList list, CacheEntry entry) {
ziv@2234	4534 listDelete(list, entry);
ziv@2234	4535 listAdd(list, entry);
ziv@2234	4536 }
ziv@2234	4537
ziv@2234	4538 // TODO: deal with time properly.
ziv@2234	4539
ziv@2234	4540 time_t getTimeNow() {
ziv@2234	4541 return time(NULL);
ziv@2234	4542 }
ziv@2234	4543
ziv@2234	4544 time_t timeMax(time_t x, time_t y) {
ziv@2234	4545 return difftime(x, y) > 0 ? x : y;
ziv@2234	4546 }
ziv@2234	4547
ziv@2234	4548 void freeCacheValue(CacheValue *value) {
ziv@2234	4549 if (value) {
ziv@2234	4550 free(value->result);
ziv@2234	4551 free(value->output);
ziv@2234	4552 free(value);
ziv@2234	4553 }
ziv@2234	4554 }
ziv@2234	4555
ziv@2234	4556 void delete(Cache cache, CacheEntry entry) {
ziv@2234	4557 //listDelete(cache->lru, entry);
ziv@2234	4558 HASH_DELETE(hh, cache->table, entry);
ziv@2234	4559 freeCacheValue(entry->value);
ziv@2234	4560 free(entry->key);
ziv@2234	4561 free(entry);
ziv@2234	4562 }
ziv@2234	4563
ziv@2234	4564 CacheValue checkHelper(Cache cache, char **keys, int timeInvalid) {
ziv@2234	4565 char *key = keys[cache->height];
ziv@2234	4566 CacheEntry *entry;
ziv@2234	4567 HASH_FIND(hh, cache->table, key, strlen(key), entry);
ziv@2234	4568 timeInvalid = timeMax(timeInvalid, cache->timeInvalid);
ziv@2234	4569 if (entry && difftime(entry->timeValid, timeInvalid) > 0) {
ziv@2234	4570 if (cache->height == 0) {
ziv@2234	4571 // At height 0, entry->value is the desired value.
ziv@2234	4572 //listBump(cache->lru, entry);
ziv@2234	4573 return entry->value;
ziv@2234	4574 } else {
ziv@2234	4575 // At height n+1, entry->value is a pointer to a cache at heignt n.
ziv@2234	4576 return checkHelper(entry->value, keys, timeInvalid);
ziv@2234	4577 }
ziv@2234	4578 } else {
ziv@2234	4579 return NULL;
ziv@2234	4580 }
ziv@2234	4581 }
ziv@2234	4582
ziv@2234	4583 CacheValue check(Cache cache, char **keys) {
ziv@2234	4584 return checkHelper(cache, keys, 0);
ziv@2234	4585 }
ziv@2234	4586
ziv@2234	4587 void storeHelper(Cache cache, char keys, CacheValue value, int timeNow) {
ziv@2234	4588 CacheEntry *entry;
ziv@2234	4589 char *key = keys[cache->height];
ziv@2234	4590 HASH_FIND(hh, cache->table, key, strlen(key), entry);
ziv@2234	4591 if (!entry) {
ziv@2234	4592 entry = malloc(sizeof(CacheEntry));
ziv@2234	4593 entry->key = strdup(key);
ziv@2234	4594 entry->value = NULL;
ziv@2234	4595 HASH_ADD_KEYPTR(hh, cache->table, entry->key, strlen(entry->key), entry);
ziv@2234	4596 }
ziv@2234	4597 entry->timeValid = timeNow;
ziv@2234	4598 if (cache->height == 0) {
ziv@2234	4599 //listAdd(cache->lru, entry);
ziv@2234	4600 freeCacheValue(entry->value);
ziv@2234	4601 entry->value = value;
ziv@2234	4602 //if (cache->lru->size > MAX_SIZE) {
ziv@2234	4603 //delete(cache, cache->lru->first);
ziv@2234	4604 // TODO: return flushed value.
ziv@2234	4605 //}
ziv@2234	4606 } else {
ziv@2234	4607 if (!entry->value) {
ziv@2234	4608 Cache *newCache = malloc(sizeof(Cache));
ziv@2234	4609 newCache->table = NULL;
ziv@2234	4610 newCache->timeInvalid = timeNow;
ziv@2234	4611 newCache->lru = cache->lru;
ziv@2234	4612 newCache->height = cache->height - 1;
ziv@2234	4613 entry->value = newCache;
ziv@2234	4614 }
ziv@2234	4615 storeHelper(entry->value, keys, value, timeNow);
ziv@2234	4616 }
ziv@2234	4617 }
ziv@2234	4618
ziv@2234	4619 void store(Cache cache, char keys, CacheValue value) {
ziv@2234	4620 storeHelper(cache, keys, value, getTimeNow());
ziv@2234	4621 }
ziv@2234	4622
ziv@2234	4623 void flushHelper(Cache cache, char *keys, int timeNow) {
ziv@2234	4624 CacheEntry *entry;
ziv@2234	4625 char *key = keys[cache->height];
ziv@2234	4626 if (key) {
ziv@2234	4627 HASH_FIND(hh, cache->table, key, strlen(key), entry);
ziv@2234	4628 if (entry) {
ziv@2234	4629 if (cache->height == 0) {
ziv@2234	4630 delete(cache, entry);
ziv@2234	4631 } else {
ziv@2234	4632 flushHelper(entry->value, keys, timeNow);
ziv@2234	4633 }
ziv@2234	4634 }
ziv@2234	4635 } else {
ziv@2234	4636 // Null key means invalidate the entire subtree.
ziv@2234	4637 cache->timeInvalid = timeNow;
ziv@2234	4638 }
ziv@2234	4639 }
ziv@2234	4640
ziv@2234	4641 void flush(Cache cache, char *keys) {
ziv@2234	4642 flushHelper(cache, keys, getTimeNow());
ziv@2234	4643 }

Mercurial > urweb

annotate src/c/urweb.c @ 2234:2f7ed04332a0