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

annotate src/c/urweb.c @ 2250:c275bbc41194

Start work on pure expression caching.

author	Ziv Scully <ziv@mit.edu>
date	Sun, 13 Sep 2015 16:02:45 -0400
parents	c05851bf7861
children	34ad83d9b729

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 uw_Basis_int my_rand() {
adam@2105	173 int ret, r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@2104	174 if (r)
adam@2105	175 return abs(ret);
adam@2104	176 else
adam@2104	177 return -1;
adam@2104	178 }
adam@2104	179
adamc@682	180 static client *new_client() {
adamc@667	181 client *c;
adamc@667	182
adamc@667	183 pthread_mutex_lock(&clients_mutex);
adamc@667	184
adamc@667	185 if (clients_free) {
adamc@667	186 c = clients_free;
adamc@682	187 clients_free = clients_free->next;
adamc@667	188 }
adam@1672	189 else if (n_clients >= uw_clients_max) {
adam@1672	190 pthread_mutex_unlock(&clients_mutex);
adamc@1113	191 return NULL;
adam@1672	192 } else {
adamc@667	193 ++n_clients;
adamc@667	194 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	195 c = malloc(sizeof(client));
adamc@667	196 c->id = n_clients-1;
adamc@682	197 pthread_mutex_init(&c->lock, NULL);
adamc@689	198 pthread_mutex_init(&c->pull_lock, NULL);
adam@1369	199 uw_buffer_init(uw_messages_max, &c->msgs, 0);
adamc@667	200 clients[n_clients-1] = c;
adamc@667	201 }
adamc@667	202
adamc@682	203 pthread_mutex_lock(&c->lock);
adamc@667	204 c->mode = USED;
adam@2104	205 c->pass = my_rand();
adamc@682	206 c->sock = -1;
adamc@682	207 c->last_contact = time(NULL);
adam@1369	208 uw_buffer_reset(&c->msgs);
adamc@682	209 c->n_channels = 0;
adamc@685	210 c->refcount = 0;
adamc@1121	211 c->data = uw_init_client_data();
adamc@682	212 pthread_mutex_unlock(&c->lock);
adamc@682	213
adamc@682	214 c->next = clients_used;
adamc@682	215 clients_used = c;
adamc@667	216
adamc@667	217 pthread_mutex_unlock(&clients_mutex);
adamc@667	218
adamc@667	219 return c;
adamc@667	220 }
adamc@667	221
adamc@685	222 static void use_client(client *c) {
adamc@685	223 pthread_mutex_lock(&c->lock);
adamc@685	224 ++c->refcount;
adamc@685	225 pthread_mutex_unlock(&c->lock);
adamc@689	226 pthread_mutex_lock(&c->pull_lock);
adamc@685	227 }
adamc@685	228
adamc@685	229 static void release_client(client *c) {
adamc@689	230 pthread_mutex_unlock(&c->pull_lock);
adamc@685	231 pthread_mutex_lock(&c->lock);
adamc@685	232 --c->refcount;
adamc@685	233 pthread_mutex_unlock(&c->lock);
adamc@685	234 }
adamc@685	235
adamc@856	236 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adam@1707	237 static pthread_t pruning_thread;
adam@1707	238 static int pruning_thread_initialized = 0;
adamc@667	239
adamc@682	240 static client *find_client(unsigned id) {
adamc@667	241 client *c;
adam@1708	242 int i_am_pruner = pruning_thread_initialized && pthread_equal(pruning_thread, pthread_self());
adam@1708	243
adam@1708	244 if (!i_am_pruner) pthread_mutex_lock(&clients_mutex);
adamc@667	245
adamc@667	246 if (id >= n_clients) {
adam@1708	247 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	248 return NULL;
adamc@667	249 }
adamc@667	250
adamc@667	251 c = clients[id];
adamc@667	252
adam@1708	253 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	254 return c;
adamc@668	255 }
adamc@668	256
adamc@856	257 static char *on_success = "HTTP/1.1 200 OK\r\n";
adam@1409	258 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	259
adamc@856	260 void uw_set_on_success(char *s) {
adamc@856	261 on_success = s;
adamc@856	262 }
adamc@856	263
adam@1552	264 static void chastise(int (send)(int sockfd, const void buf, ssize_t len), int sock) {
adam@1552	265 send(sock, on_success, strlen(on_success));
adam@1552	266 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1552	267 send(sock, "R", 1);
adam@1552	268 close(sock);
adam@1552	269 }
adam@1552	270
adamc@863	271 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	272 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	273 int (*close)(int fd),
adamc@864	274 void *logger_data, uw_logger log_error) {
adamc@682	275 client *c = find_client(id);
adamc@668	276
adamc@668	277 if (c == NULL) {
adam@1552	278 chastise(send, sock);
adamc@864	279 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	280 return;
adamc@667	281 }
adamc@667	282
adamc@682	283 pthread_mutex_lock(&c->lock);
adamc@671	284
adamc@682	285 if (c->mode != USED) {
adamc@682	286 pthread_mutex_unlock(&c->lock);
adam@1552	287 chastise(send, sock);
adamc@864	288 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	289 return;
adamc@667	290 }
adamc@667	291
adamc@682	292 if (pass != c->pass) {
adamc@682	293 pthread_mutex_unlock(&c->lock);
adam@1552	294 chastise(send, sock);
adamc@864	295 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	296 return;
adamc@667	297 }
adamc@667	298
adamc@682	299 if (c->sock != -1) {
adamc@863	300 c->close(c->sock);
adamc@682	301 c->sock = -1;
adamc@682	302 }
adamc@667	303
adamc@682	304 c->last_contact = time(NULL);
adamc@682	305
adam@1369	306 if (uw_buffer_used(&c->msgs) > 0) {
adamc@863	307 send(sock, on_success, strlen(on_success));
adamc@863	308 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1369	309 send(sock, c->msgs.start, uw_buffer_used(&c->msgs));
adam@1369	310 uw_buffer_reset(&c->msgs);
adamc@667	311 close(sock);
adamc@667	312 }
adamc@863	313 else {
adamc@682	314 c->sock = sock;
adamc@863	315 c->send = send;
adamc@863	316 c->close = close;
adamc@863	317 }
adamc@667	318
adamc@682	319 pthread_mutex_unlock(&c->lock);
adamc@667	320 }
adamc@667	321
adamc@682	322 static void free_client(client *c) {
adamc@682	323 c->mode = UNUSED;
adamc@682	324 c->pass = -1;
adamc@667	325
adamc@682	326 c->next = clients_free;
adamc@682	327 clients_free = c;
adamc@667	328 }
adamc@667	329
adamc@682	330 static uw_Basis_channel new_channel(client *c) {
adamc@682	331 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	332 return ch;
adamc@668	333 }
adamc@668	334
adam@1447	335 static void client_send(client c, uw_buffer msg, const char *script, int script_len) {
adamc@685	336 pthread_mutex_lock(&c->lock);
adamc@671	337
adamc@682	338 if (c->sock != -1) {
adamc@863	339 c->send(c->sock, on_success, strlen(on_success));
adamc@863	340 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1447	341 if (script_len > 0) {
adam@1447	342 c->send(c->sock, "E\n", 2);
adam@1447	343 c->send(c->sock, script, script_len);
adam@1447	344 c->send(c->sock, "\n", 1);
adam@1447	345 }
adam@1369	346 c->send(c->sock, msg->start, uw_buffer_used(msg));
adamc@863	347 c->close(c->sock);
adamc@682	348 c->sock = -1;
adam@1665	349 } else if (uw_buffer_append(&c->msgs, msg->start, uw_buffer_used(msg)))
adamc@1113	350 fprintf(stderr, "Client message buffer size exceeded");
adamc@671	351
adamc@685	352 pthread_mutex_unlock(&c->lock);
adamc@668	353 }
adamc@668	354
adamc@668	355
adamc@668	356 // Global entry points
adamc@668	357
adamc@1164	358 extern void uw_global_custom();
adamc@1104	359 extern void uw_init_crypto();
adamc@1104	360
adamc@668	361 void uw_global_init() {
adamc@668	362 clients = malloc(0);
adamc@1104	363
adamc@1164	364 uw_global_custom();
adamc@1104	365 uw_init_crypto();
adamc@1094	366 }
adamc@1094	367
adamc@1094	368 void uw_app_init(uw_app *app) {
adamc@1094	369 app->client_init();
adamc@668	370 }
adamc@668	371
adam@1332	372 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114	373
adamc@668	374
adamc@667	375 // Single-request state
adamc@667	376
adamc@323	377 typedef struct regions {
adamc@323	378 struct regions *next;
adamc@323	379 } regions;
adamc@323	380
adamc@425	381 typedef struct {
adamc@425	382 void (func)(void);
adamc@425	383 void *arg;
adamc@425	384 } cleanup;
adamc@425	385
adamc@671	386 typedef struct {
adamc@682	387 unsigned client;
adam@1369	388 uw_buffer msgs;
adamc@682	389 } delta;
adamc@671	390
adamc@737	391 typedef enum {
adamc@759	392 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	393 } input_kind;
adamc@737	394
adamc@756	395 typedef struct input {
adamc@737	396 input_kind kind;
adamc@737	397 union {
adamc@737	398 char *normal;
adamc@739	399 uw_Basis_file file;
adamc@756	400 struct {
adamc@759	401 struct input fields, parent;
adamc@756	402 } subform;
adamc@759	403 struct {
adamc@759	404 struct input entries, parent;
adamc@759	405 } subforms;
adamc@759	406 struct {
adamc@759	407 struct input fields, next, *parent;
adamc@759	408 } entry;
adamc@737	409 } data;
adamc@737	410 } input;
adamc@737	411
adamc@771	412 typedef struct {
adamc@771	413 void *data;
adam@1327	414 uw_callback commit, rollback;
adam@1327	415 uw_callback_with_retry free;
adamc@771	416 } transactional;
adamc@771	417
adamc@1061	418 typedef struct {
adamc@1061	419 char *name;
adamc@1061	420 void *data;
adamc@1061	421 void (free)(void);
adamc@1061	422 } global;
adamc@1061	423
adamc@311	424 struct uw_context {
adamc@1094	425 uw_app *app;
adam@1446	426 int id;
adamc@1094	427
adamc@854	428 char (get_header)(void , const char );
adamc@854	429 void *get_header_data;
adamc@457	430
adam@1799	431 char (get_env)(void , const char );
adam@1799	432 void *get_env_data;
adam@1799	433
adam@1369	434 uw_buffer outHeaders, page, heap, script;
adam@1451	435 int allowed_to_return_indirectly, returning_indirectly;
adamc@759	436 input inputs, subinputs, *cur_container;
adamc@1094	437 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	438
adam@1446	439 unsigned long long source_count;
adamc@562	440
adamc@272	441 void *db;
adam@1931	442 int transaction_started;
adamc@272	443
adamc@167	444 jmp_buf jmp_buf;
adamc@167	445
adamc@323	446 regions *regions;
adamc@323	447
adamc@425	448 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	449
adamc@1094	450 const char *script_header;
adamc@643	451
adam@2056	452 int needs_push, needs_sig, could_write_db, at_most_one_query;
adamc@693	453
adamc@682	454 size_t n_deltas, used_deltas;
adamc@682	455 delta *deltas;
adamc@671	456
adamc@682	457 client *client;
adamc@682	458
adamc@771	459 transactional *transactionals;
adamc@771	460 size_t n_transactionals, used_transactionals;
adamc@771	461
adamc@1061	462 global *globals;
adamc@1061	463 size_t n_globals;
adamc@1061	464
adamc@1066	465 char *current_url;
adamc@1066	466
adamc@1114	467 int deadline;
adamc@1114	468
adamc@1121	469 void *client_data;
adamc@1121	470
grrwlf@1997	471 uw_loggers *loggers;
adam@1334	472
adam@1386	473 int isPost, hasPostBody;
adam@1347	474 uw_Basis_postBody postBody;
adam@1370	475 uw_Basis_string queryString;
adam@1347	476
adam@1556	477 unsigned nextId;
adam@1556	478
adam@1782	479 int amInitializing;
adam@1782	480
adamc@167	481 char error_message[ERROR_BUF_LEN];
adam@1877	482
adam@1877	483 int usedSig, needsResig;
adam@1949	484
adam@1949	485 char *output_buffer;
adam@1949	486 size_t output_buffer_size;
adam@2073	487
ziv@2204	488 // For caching.
ziv@2204	489 char *recording;
ziv@2220	490
adam@2073	491 int remoteSock;
adamc@117	492 };
adamc@117	493
adamc@1113	494 size_t uw_headers_max = SIZE_MAX;
adamc@1113	495 size_t uw_page_max = SIZE_MAX;
adamc@1113	496 size_t uw_heap_max = SIZE_MAX;
adamc@1113	497 size_t uw_script_max = SIZE_MAX;
adamc@1113	498
grrwlf@1997	499 uw_context uw_init(int id, uw_loggers *lg) {
adamc@311	500 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	501
adamc@1094	502 ctx->app = NULL;
adam@1446	503 ctx->id = id;
adamc@1094	504
adamc@854	505 ctx->get_header = NULL;
adamc@854	506 ctx->get_header_data = NULL;
adamc@457	507
adam@1799	508 ctx->get_env = NULL;
adam@1799	509 ctx->get_env_data = NULL;
adam@1799	510
adam@1413	511 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413	512 ctx->outHeaders.start[0] = 0;
adam@1413	513 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413	514 ctx->page.start[0] = 0;
adam@1451	515 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	516 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369	517 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667	518 ctx->script.start[0] = 0;
adamc@136	519
adamc@1094	520 ctx->inputs = malloc(0);
adamc@759	521 ctx->cur_container = NULL;
adamc@756	522 ctx->subinputs = malloc(0);
adamc@1094	523 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	524
adamc@272	525 ctx->db = NULL;
adam@1931	526 ctx->transaction_started = 0;
adamc@272	527
adamc@323	528 ctx->regions = NULL;
adamc@323	529
adamc@425	530 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	531
adamc@643	532 ctx->script_header = "";
adamc@693	533 ctx->needs_push = 0;
adamc@736	534 ctx->needs_sig = 0;
adam@1936	535 ctx->could_write_db = 1;
adam@2056	536 ctx->at_most_one_query = 0;
adamc@1104	537
adamc@565	538 ctx->source_count = 0;
adamc@562	539
adamc@682	540 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	541 ctx->deltas = malloc(0);
adamc@671	542
adamc@700	543 ctx->client = NULL;
adamc@700	544
adamc@700	545 ctx->error_message[0] = 0;
adamc@700	546
adamc@771	547 ctx->transactionals = malloc(0);
adamc@771	548 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	549
adamc@1061	550 ctx->globals = malloc(0);
adamc@1061	551 ctx->n_globals = 0;
adamc@1061	552
adamc@1066	553 ctx->current_url = "";
adamc@1066	554
adamc@1114	555 ctx->deadline = INT_MAX;
adamc@1114	556
adamc@1121	557 ctx->client_data = uw_init_client_data();
adamc@1121	558
grrwlf@1997	559 ctx->loggers = lg;
adam@1334	560
adam@1386	561 ctx->isPost = ctx->hasPostBody = 0;
adam@1347	562
adam@1370	563 ctx->queryString = NULL;
adam@1370	564
adam@1556	565 ctx->nextId = 0;
adam@1556	566
adam@1782	567 ctx->amInitializing = 0;
adam@1782	568
adam@1877	569 ctx->usedSig = 0;
adam@1877	570 ctx->needsResig = 0;
adam@1877	571
adam@1949	572 ctx->output_buffer = malloc(1);
adam@1949	573 ctx->output_buffer_size = 1;
adam@1949	574
ziv@2204	575 ctx->recording = 0;
ziv@2204	576
adam@2073	577 ctx->remoteSock = -1;
adam@2073	578
adamc@117	579 return ctx;
adamc@106	580 }
adamc@106	581
adamc@1113	582 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	583
adamc@1121	584 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	585 return ctx->app;
adamc@1121	586 }
adamc@1121	587
adamc@1113	588 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	589 ctx->app = app;
adamc@1094	590
adamc@1105	591 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	592 if (app->inputs_len > uw_inputs_max)
adamc@1113	593 return 1;
adamc@1113	594
adamc@1094	595 ctx->sz_inputs = app->inputs_len;
adamc@1094	596 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	597 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	598 }
adamc@1134	599
adamc@1134	600 return 0;
adamc@1094	601 }
adamc@1094	602
adamc@1121	603 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	604 uw_copy_client_data(ctx->client_data, data);
adamc@1121	605 }
adamc@1121	606
adamc@311	607 void uw_set_db(uw_context ctx, void *db) {
adamc@272	608 ctx->db = db;
adamc@272	609 }
adamc@272	610
adamc@311	611 void *uw_get_db(uw_context ctx) {
adamc@272	612 return ctx->db;
adamc@272	613 }
adamc@272	614
grrwlf@1997	615
grrwlf@1997	616 uw_loggers* uw_get_loggers(struct uw_context *ctx) {
grrwlf@1997	617 return ctx->loggers;
grrwlf@1997	618 }
grrwlf@1997	619
adamc@311	620 void uw_free(uw_context ctx) {
adamc@671	621 size_t i;
adamc@671	622
adam@1369	623 uw_buffer_free(&ctx->outHeaders);
adam@1369	624 uw_buffer_free(&ctx->script);
adam@1369	625 uw_buffer_free(&ctx->page);
adam@1369	626 uw_buffer_free(&ctx->heap);
adamc@144	627 free(ctx->inputs);
adamc@756	628 free(ctx->subinputs);
adamc@425	629 free(ctx->cleanup);
adamc@771	630 free(ctx->transactionals);
adamc@1121	631 uw_free_client_data(ctx->client_data);
adamc@671	632
adamc@682	633 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	634 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	635 free(ctx->deltas);
adamc@671	636
adamc@1061	637 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	638 if (ctx->globals[i].free)
adamc@1089	639 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	640 free(ctx->globals);
adamc@1061	641
adam@1949	642 free(ctx->output_buffer);
adam@1949	643
adamc@136	644 free(ctx);
adamc@136	645 }
adamc@136	646
adamc@562	647 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	648 uw_buffer_reset(&ctx->outHeaders);
adam@1369	649 uw_buffer_reset(&ctx->script);
adamc@667	650 ctx->script.start[0] = 0;
adam@1369	651 uw_buffer_reset(&ctx->page);
adam@1451	652 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	653 uw_buffer_reset(&ctx->heap);
adamc@323	654 ctx->regions = NULL;
adamc@425	655 ctx->cleanup_front = ctx->cleanup;
adamc@682	656 ctx->used_deltas = 0;
adamc@682	657 ctx->client = NULL;
adamc@759	658 ctx->cur_container = NULL;
adamc@771	659 ctx->used_transactionals = 0;
adamc@1117	660 ctx->script_header = "";
adam@1370	661 ctx->queryString = NULL;
adam@1556	662 ctx->nextId = 0;
adam@1782	663 ctx->amInitializing = 0;
adam@1877	664 ctx->usedSig = 0;
adam@1877	665 ctx->needsResig = 0;
adam@2073	666 ctx->remoteSock = -1;
adamc@167	667 }
adamc@167	668
adamc@562	669 void uw_reset_keep_request(uw_context ctx) {
adamc@562	670 uw_reset_keep_error_message(ctx);
adamc@562	671 ctx->error_message[0] = 0;
adamc@167	672 }
adamc@167	673
adamc@311	674 void uw_reset(uw_context ctx) {
adamc@311	675 uw_reset_keep_request(ctx);
adamc@1105	676 if (ctx->app)
adamc@1105	677 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	678 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461	679 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adam@1943	680 ctx->transaction_started = 0;
adamc@144	681 }
adamc@144	682
adamc@311	683 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	684 int r = setjmp(ctx->jmp_buf);
adamc@272	685
adamc@1105	686 if (r == 0 && ctx->app)
adamc@1094	687 ctx->app->db_init(ctx);
adamc@272	688
adamc@272	689 return r;
adamc@272	690 }
adamc@272	691
adamc@1118	692 void uw_close(uw_context ctx) {
adamc@1118	693 ctx->app->db_close(ctx);
adamc@1118	694 }
adamc@1118	695
adam@1446	696 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	697 return ctx->get_header(ctx->get_header_data, h);
adam@1446	698 }
adam@1446	699
adamc@854	700 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	701 ctx->get_header = get_header;
adamc@854	702 ctx->get_header_data = get_header_data;
adamc@742	703 }
adamc@742	704
adam@1799	705 void uw_set_env(uw_context ctx, char (get_env)(void , const char ), void *get_env_data) {
adam@1799	706 ctx->get_env = get_env;
adam@1799	707 ctx->get_env_data = get_env_data;
adam@1799	708 }
adam@1799	709
adamc@801	710 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	711 va_list ap;
adamc@801	712 va_start(ap, fmt);
adamc@801	713
adamc@801	714 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	715 }
adamc@801	716
adamc@1131	717 int uw_has_error(uw_context ctx) {
adamc@1131	718 return ctx->error_message[0] != 0;
adamc@1131	719 }
adamc@1131	720
adamc@311	721 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	722 cleanup *cl;
adamc@425	723
adamc@167	724 va_list ap;
adamc@167	725 va_start(ap, fmt);
adamc@167	726
adamc@167	727 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	728
adamc@425	729 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	730 cl->func(cl->arg);
adamc@425	731
adamc@425	732 ctx->cleanup_front = ctx->cleanup;
adamc@425	733
adamc@190	734 longjmp(ctx->jmp_buf, fk);
adamc@167	735 }
adamc@167	736
adamc@1113	737 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	738
adamc@425	739 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	740 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	741 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	742 if (len == 0)
adamc@425	743 newLen = 1;
adamc@425	744 else
adamc@428	745 newLen = len * 2;
adamc@1113	746
adamc@1134	747 if (newLen > uw_cleanup_max) {
adamc@1113	748 if (len+1 <= uw_cleanup_max)
adamc@1113	749 newLen = uw_cleanup_max;
adamc@1113	750 else
adamc@1113	751 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	752 }
adamc@1113	753
adamc@470	754 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	755 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	756 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	757 }
adamc@425	758
adamc@425	759 ctx->cleanup_front->func = func;
adamc@425	760 ctx->cleanup_front->arg = arg;
adamc@425	761 ++ctx->cleanup_front;
adamc@425	762 }
adamc@425	763
adam@1444	764 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	765
adamc@682	766 void uw_login(uw_context ctx) {
adam@1942	767 char id_s, pass_s;
adam@1942	768
adam@1942	769 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adam@1942	770 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adam@1942	771 unsigned id = atoi(id_s);
adam@1942	772 int pass = atoi(pass_s);
adam@1942	773 client *c = find_client(id);
adam@1942	774
adam@1942	775 if (c == NULL)
adam@1942	776 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	777 else {
adamc@685	778 use_client(c);
adamc@682	779 ctx->client = c;
adam@1942	780
adam@1942	781 if (c->mode != USED)
adam@1942	782 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adam@1942	783 if (c->pass != pass)
adam@1942	784 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@864	785 }
adam@1942	786 } else if (ctx->needs_push) {
adam@1942	787 client *c = new_client();
adam@1942	788
adam@1942	789 if (c == NULL)
adam@1942	790 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adam@1942	791
adam@1942	792 use_client(c);
adam@1942	793 uw_copy_client_data(c->data, ctx->client_data);
adam@1942	794 ctx->client = c;
adamc@682	795 }
adamc@682	796 }
adamc@682	797
adamc@671	798 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	799 int r = setjmp(ctx->jmp_buf);
adamc@671	800
adam@1931	801 if (r == 0)
adam@1931	802 ctx->app->handle(ctx, path);
adam@1931	803
adam@1931	804 return r;
adam@1931	805 }
adam@1931	806
adam@1931	807 void uw_ensure_transaction(uw_context ctx) {
adam@2056	808 if (!ctx->transaction_started && !ctx->at_most_one_query) {
adam@1936	809 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adamc@671	810 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1931	811 ctx->transaction_started = 1;
adamc@671	812 }
adamc@671	813 }
adamc@671	814
adamc@772	815 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	816 if (ctx->client == NULL)
adamc@682	817 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	818
adamc@682	819 return ctx->client->id;
adamc@682	820 }
adamc@682	821
adamc@425	822 void uw_pop_cleanup(uw_context ctx) {
adamc@425	823 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	824 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	825
adamc@425	826 --ctx->cleanup_front;
adamc@425	827 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	828 }
adamc@425	829
adamc@311	830 char *uw_error_message(uw_context ctx) {
adamc@167	831 return ctx->error_message;
adamc@167	832 }
adamc@167	833
adamc@1115	834 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	835 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	836 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	837 }
adamc@1115	838
adamc@759	839 static input *INP(uw_context ctx) {
adamc@759	840 if (ctx->cur_container == NULL)
adamc@759	841 return ctx->inputs;
adamc@759	842 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	843 return ctx->cur_container->data.subform.fields;
adamc@759	844 else if (ctx->cur_container->kind == ENTRY)
adamc@759	845 return ctx->cur_container->data.entry.fields;
adamc@759	846 else
adamc@760	847 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	848 }
adamc@759	849
adamc@760	850 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	851 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	852 *ptr += new_start - old_start;
adamc@760	853 }
adamc@760	854
adamc@760	855 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	856 switch (x->kind) {
adamc@759	857 case SUBFORM:
adamc@760	858 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	859 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	860 break;
adamc@759	861 case SUBFORMS:
adamc@760	862 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	863 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	864 break;
adamc@759	865 case ENTRY:
adamc@760	866 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	867 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	868 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	869 break;
adamc@1134	870 default:
adamc@1134	871 break;
phurst@1981	872 }
adamc@759	873 }
adamc@759	874
adamc@1113	875 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	876
adamc@759	877 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	878 size_t i;
adamc@759	879 input *r;
adamc@759	880
adamc@759	881 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	882 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	883 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	884
adamc@759	885 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	886
adamc@760	887 if (ctx->subinputs != new_subinputs) {
adamc@760	888 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	889 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	890 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	891 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	892
adamc@760	893 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	894
adamc@760	895 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	896 ctx->subinputs = new_subinputs;
adamc@760	897 }
adamc@759	898 }
adamc@759	899
adamc@759	900 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	901
adamc@759	902 for (i = 0; i < len; ++i)
adam@1474	903 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	904
adamc@759	905 return r;
adamc@759	906 }
adamc@756	907
adamc@801	908 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	909 //printf("Input name %s\n", name);
adamc@1038	910
adamc@756	911 if (!strcasecmp(name, ".b")) {
adamc@1094	912 int n = ctx->app->input_num(value);
adamc@756	913 input *inps;
adamc@756	914
adamc@801	915 if (n < 0) {
adam@1444	916 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	917 return -1;
adamc@801	918 }
adamc@801	919
adamc@1094	920 if (n >= ctx->app->inputs_len) {
adam@1444	921 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	922 return -1;
adamc@801	923 }
adamc@756	924
adamc@1094	925 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	926
adamc@759	927 INP(ctx)[n].kind = SUBFORM;
adamc@759	928 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	929 INP(ctx)[n].data.subform.fields = inps;
adamc@759	930 ctx->cur_container = &INP(ctx)[n];
adamc@756	931 } else if (!strcasecmp(name, ".e")) {
adamc@756	932 input *tmp;
adamc@756	933
adamc@801	934 if (ctx->cur_container == NULL) {
adamc@801	935 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	936 return -1;
adamc@801	937 }
adamc@756	938
adamc@759	939 tmp = ctx->cur_container;
adamc@759	940 switch (tmp->kind) {
adamc@759	941 case SUBFORM:
adamc@759	942 ctx->cur_container = tmp->data.subform.parent;
adamc@759	943 tmp->data.subform.parent = NULL;
adamc@759	944 break;
adamc@759	945 case SUBFORMS:
adamc@759	946 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	947 tmp->data.subforms.parent = NULL;
adamc@759	948 break;
adamc@759	949 case ENTRY:
adamc@759	950 ctx->cur_container = tmp->data.entry.parent;
adamc@759	951 break;
adamc@759	952 default:
adamc@801	953 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	954 return -1;
adamc@759	955 }
adamc@759	956 } else if (!strcasecmp(name, ".s")) {
adamc@1094	957 int n = ctx->app->input_num(value);
adamc@759	958
adamc@801	959 if (n < 0) {
adam@1444	960 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	961 return -1;
adamc@801	962 }
adamc@801	963
adamc@1094	964 if (n >= ctx->app->inputs_len) {
adam@1444	965 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	966 return -1;
adamc@801	967 }
adamc@759	968
adamc@759	969 INP(ctx)[n].kind = SUBFORMS;
adamc@759	970 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	971 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	972 ctx->cur_container = &INP(ctx)[n];
adamc@759	973 } else if (!strcasecmp(name, ".i")) {
adamc@759	974 input *inps;
adamc@759	975
adamc@801	976 if (!ctx->cur_container) {
adamc@801	977 uw_set_error(ctx, "New entry without container");
adamc@801	978 return -1;
adamc@801	979 }
adamc@801	980
adamc@801	981 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	982 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	983 return -1;
adamc@801	984 }
adamc@759	985
adamc@1094	986 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	987
adamc@759	988 inps->kind = ENTRY;
adamc@759	989 inps->data.entry.parent = ctx->cur_container;
adamc@759	990 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	991 ctx->cur_container->data.subforms.entries = inps;
adamc@759	992
adamc@759	993 inps->data.entry.fields = inps+1;
adamc@759	994 ctx->cur_container = inps;
adamc@756	995 } else {
adamc@1094	996 int n = ctx->app->input_num(name);
adamc@756	997
adam@1384	998 if (n < 0)
adam@1384	999 return 0;
adamc@801	1000
adamc@1094	1001 if (n >= ctx->app->inputs_len) {
adam@1444	1002 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	1003 return -1;
adamc@801	1004 }
adamc@756	1005
adamc@756	1006 INP(ctx)[n].kind = NORMAL;
adamc@756	1007 INP(ctx)[n].data.normal = value;
adamc@756	1008 }
adamc@801	1009
adamc@801	1010 return 0;
adamc@144	1011 }
adamc@144	1012
adamc@311	1013 char *uw_get_input(uw_context ctx, int n) {
adamc@169	1014 if (n < 0)
adamc@311	1015 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1016 if (n >= ctx->app->inputs_len)
adamc@311	1017 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1018
adamc@756	1019 switch (INP(ctx)[n].kind) {
adamc@737	1020 case UNSET:
adamc@737	1021 return NULL;
adamc@739	1022 case FIL:
adamc@739	1023 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1024 case SUBFORM:
adamc@756	1025 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1026 case SUBFORMS:
adamc@759	1027 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1028 case ENTRY:
adamc@759	1029 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1030 case NORMAL:
adamc@756	1031 return INP(ctx)[n].data.normal;
adamc@737	1032 default:
adamc@737	1033 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1034 }
adamc@138	1035 }
adamc@138	1036
adamc@311	1037 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	1038 if (n < 0)
adamc@311	1039 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1040 if (n >= ctx->app->inputs_len)
adamc@311	1041 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1042
adamc@756	1043 switch (INP(ctx)[n].kind) {
adamc@737	1044 case UNSET:
adamc@737	1045 return "";
adamc@739	1046 case FIL:
adamc@739	1047 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1048 case SUBFORM:
adamc@756	1049 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1050 case SUBFORMS:
adamc@759	1051 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1052 case ENTRY:
adamc@759	1053 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1054 case NORMAL:
adamc@756	1055 return INP(ctx)[n].data.normal;
adamc@737	1056 default:
adamc@737	1057 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1058 }
adamc@737	1059 }
adamc@737	1060
adamc@801	1061 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1062 int n = ctx->app->input_num(name);
adamc@737	1063
adamc@801	1064 if (n < 0) {
adam@2054	1065 uw_set_error(ctx, "Bad file input name");
adamc@801	1066 return -1;
adamc@801	1067 }
adamc@801	1068
adamc@1094	1069 if (n >= ctx->app->inputs_len) {
adam@2054	1070 uw_set_error(ctx, "For file input name, index %d is out of range", n);
adamc@801	1071 return -1;
adamc@801	1072 }
adamc@737	1073
adamc@739	1074 ctx->inputs[n].kind = FIL;
adamc@739	1075 ctx->inputs[n].data.file = f;
adamc@801	1076
adamc@801	1077 return 0;
adamc@737	1078 }
adamc@737	1079
adamc@739	1080 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1081
adamc@739	1082 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1083 if (n < 0)
adamc@737	1084 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1085 if (n >= ctx->app->inputs_len)
adamc@737	1086 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1087
adamc@756	1088 switch (INP(ctx)[n].kind) {
adamc@737	1089 case UNSET:
adamc@737	1090 {
adamc@739	1091 char *data = uw_malloc(ctx, 0);
adamc@740	1092 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1093 return f;
adamc@737	1094 }
adamc@739	1095 case FIL:
adamc@756	1096 return INP(ctx)[n].data.file;
adamc@737	1097 case NORMAL:
adamc@737	1098 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1099 case SUBFORM:
adamc@756	1100 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1101 case SUBFORMS:
adamc@759	1102 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1103 case ENTRY:
adamc@759	1104 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1105 default:
adamc@737	1106 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1107 }
adamc@190	1108 }
adamc@190	1109
adamc@756	1110 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1111 if (n < 0)
adamc@756	1112 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1113 if (n >= ctx->app->inputs_len)
adamc@756	1114 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1115
adamc@756	1116 switch (INP(ctx)[n].kind) {
adamc@756	1117 case UNSET:
adamc@756	1118 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1119 case FIL:
adamc@756	1120 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1121 case NORMAL:
adamc@756	1122 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1123 case SUBFORMS:
adamc@759	1124 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1125 case ENTRY:
adamc@759	1126 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1127 case SUBFORM:
adamc@759	1128 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1129 ctx->cur_container = &INP(ctx)[n];
adamc@756	1130 return;
adamc@756	1131 default:
adamc@756	1132 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1133 }
adamc@756	1134 }
adamc@756	1135
adamc@756	1136 void uw_leave_subform(uw_context ctx) {
adamc@756	1137 input *tmp;
adamc@756	1138
adamc@759	1139 if (ctx->cur_container == NULL)
adamc@756	1140 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1141
adamc@759	1142 tmp = ctx->cur_container;
adamc@759	1143 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1144 tmp->data.subform.parent = NULL;
adamc@759	1145 }
adamc@759	1146
adamc@759	1147 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1148 input *inps;
adamc@759	1149
adamc@759	1150 if (n < 0)
adamc@759	1151 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1152 if (n >= ctx->app->inputs_len)
adamc@759	1153 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1154
adamc@759	1155 switch (INP(ctx)[n].kind) {
adamc@759	1156 case UNSET:
adamc@759	1157 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1158 case FIL:
adamc@759	1159 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1160 case NORMAL:
adamc@759	1161 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1162 case SUBFORM:
adamc@759	1163 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1164 case ENTRY:
adamc@759	1165 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1166 case SUBFORMS:
adamc@759	1167 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1168 if (inps) {
adamc@759	1169 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1170 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1171 return 1;
adamc@759	1172 } else
adamc@759	1173 return 0;
adamc@759	1174 default:
adamc@759	1175 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1176 }
adamc@759	1177 }
adamc@759	1178
adamc@759	1179 int uw_next_entry(uw_context ctx) {
adamc@759	1180 if (ctx->cur_container == NULL)
adamc@759	1181 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1182
adamc@759	1183 switch (ctx->cur_container->kind) {
adamc@759	1184 case UNSET:
adamc@759	1185 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1186 case FIL:
adamc@759	1187 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1188 case NORMAL:
adamc@759	1189 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1190 case SUBFORM:
adamc@759	1191 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1192 case SUBFORMS:
adamc@759	1193 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1194 case ENTRY:
adamc@759	1195 if (ctx->cur_container->data.entry.next) {
adamc@759	1196 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1197 return 1;
adamc@759	1198 } else {
adamc@759	1199 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1200 return 0;
adamc@759	1201 }
adamc@759	1202 default:
adamc@759	1203 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1204 }
adamc@756	1205 }
adamc@756	1206
adamc@643	1207 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1208 ctx->script_header = s;
adamc@643	1209 }
adamc@643	1210
adamc@1094	1211 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1212 return ctx->app->url_prefix;
adamc@667	1213 }
adamc@667	1214
adamc@693	1215 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1216 ctx->needs_push = n;
adamc@693	1217 }
adamc@693	1218
adamc@736	1219 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1220 ctx->needs_sig = n;
adamc@736	1221 }
adamc@736	1222
adam@1936	1223 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936	1224 ctx->could_write_db = n;
adam@1936	1225 }
adam@1936	1226
adam@2056	1227 void uw_set_at_most_one_query(uw_context ctx, int n) {
adam@2056	1228 ctx->at_most_one_query = n;
adam@2056	1229 }
adam@2056	1230
adamc@667	1231
adam@1369	1232 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1233 if (b->back - b->front < extra) {
adamc@666	1234 size_t desired = b->front - b->start + extra, next;
adamc@136	1235 char *new_heap;
adamc@136	1236
adamc@666	1237 next = b->back - b->start;
adamc@317	1238 if (next == 0)
adamc@317	1239 next = 1;
adamc@317	1240 for (; next < desired; next *= 2);
adamc@136	1241
adamc@1134	1242 if (next > b->max) {
adamc@1113	1243 if (desired <= b->max)
adamc@1113	1244 next = desired;
adamc@1113	1245 else
adamc@1113	1246 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1247 }
adamc@1113	1248
adamc@666	1249 new_heap = realloc(b->start, next);
adamc@666	1250 b->front = new_heap + (b->front - b->start);
adamc@666	1251 b->back = new_heap + next;
adamc@136	1252
adamc@667	1253 if (new_heap != b->start) {
adamc@666	1254 b->start = new_heap;
adam@1389	1255 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1256 }
adamc@136	1257
adamc@666	1258 b->start = new_heap;
adamc@136	1259 }
adamc@136	1260 }
adamc@136	1261
adamc@832	1262 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1263 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1264 }
adamc@666	1265
adamc@832	1266 char *uw_heap_front(uw_context ctx) {
adamc@832	1267 return ctx->heap.front;
adamc@832	1268 }
adamc@832	1269
adamc@832	1270 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1271 ctx->heap.front = fr;
adamc@832	1272 }
adamc@832	1273
adam@1782	1274 void uw_begin_initializing(uw_context ctx) {
adam@1782	1275 ctx->amInitializing = 1;
adam@1782	1276 }
adam@1782	1277
adam@1782	1278 void uw_end_initializing(uw_context ctx) {
adam@1782	1279 ctx->amInitializing = 0;
adam@1782	1280 }
adam@1782	1281
adam@2013	1282 static void align_heap(uw_context ctx) {
adam@2013	1283 size_t posn = ctx->heap.front - ctx->heap.start;
adam@2013	1284
adam@2017	1285 if (posn % sizeof(void *) != 0) {
adam@2017	1286 size_t bump = sizeof(void ) - posn % sizeof(void );
adam@2013	1287 uw_check_heap(ctx, bump);
adam@2013	1288 ctx->heap.front += bump;
adam@2013	1289 }
adam@2013	1290 }
adam@2013	1291
adamc@311	1292 void *uw_malloc(uw_context ctx, size_t len) {
adam@2013	1293 // On some architectures, it's important that all word-sized memory accesses
adam@2013	1294 // be to word-aligned addresses, so we'll do a little bit of extra work here
adam@2013	1295 // in anticipation of a possible word-aligned access to the address we'll
adam@2013	1296 // return.
adam@2013	1297
adamc@136	1298 void *result;
adamc@136	1299
adam@1782	1300 if (ctx->amInitializing) {
adam@2017	1301 int error = posix_memalign(&result, sizeof(void *), len);
adam@2013	1302
adam@2013	1303 if (!error)
adam@1782	1304 return result;
adam@1782	1305 else
adam@2013	1306 uw_error(ctx, FATAL, "uw_malloc: posix_memalign() returns %d", error);
adam@1782	1307 } else {
adam@2013	1308 align_heap(ctx);
adam@2013	1309
adam@1782	1310 uw_check_heap(ctx, len);
adam@1782	1311
adam@1782	1312 result = ctx->heap.front;
adam@1782	1313 ctx->heap.front += len;
adam@1782	1314 return result;
adam@1782	1315 }
adamc@117	1316 }
adamc@117	1317
adamc@323	1318 void uw_begin_region(uw_context ctx) {
adam@2013	1319 align_heap(ctx);
adam@2013	1320
adamc@666	1321 regions r = (regions ) ctx->heap.front;
adamc@323	1322
adamc@323	1323 uw_check_heap(ctx, sizeof(regions));
adamc@323	1324
adamc@666	1325 ctx->heap.front += sizeof(regions);
adamc@323	1326
adamc@323	1327 r->next = ctx->regions;
adamc@323	1328 ctx->regions = r;
adamc@323	1329 }
adamc@323	1330
adamc@323	1331 void uw_end_region(uw_context ctx) {
adamc@323	1332 regions *r = ctx->regions;
adamc@323	1333
adamc@323	1334 if (r == NULL)
adamc@323	1335 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1336
adamc@666	1337 ctx->heap.front = (char *) r;
adamc@323	1338 ctx->regions = r->next;
adamc@323	1339 }
adamc@323	1340
adamc@324	1341 void uw_memstats(uw_context ctx) {
adam@1369	1342 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1343 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1344 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1345 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1346 }
adamc@324	1347
adam@1915	1348 int uw_pagelen(uw_context ctx) {
adam@1915	1349 return ctx->page.front - ctx->page.start;
adam@1915	1350 }
adam@1915	1351
adamc@311	1352 int uw_send(uw_context ctx, int sock) {
adam@1949	1353 size_t target_length = (ctx->outHeaders.front - ctx->outHeaders.start) + 2 + (ctx->page.front - ctx->page.start);
adam@1949	1354
adam@1949	1355 if (ctx->output_buffer_size < target_length) {
adam@1949	1356 do {
adam@1949	1357 ctx->output_buffer_size *= 2;
adam@1949	1358 } while (ctx->output_buffer_size < target_length);
adam@1949	1359 ctx->output_buffer = realloc(ctx->output_buffer, ctx->output_buffer_size);
adam@1949	1360 }
adam@1949	1361
adam@1949	1362 memcpy(ctx->output_buffer, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adam@1949	1363 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start), "\r\n", 2);
adam@1949	1364 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start) + 2, ctx->page.start, ctx->page.front - ctx->page.start);
adam@1949	1365
adam@1949	1366 return uw_really_send(sock, ctx->output_buffer, target_length);
adamc@462	1367 }
adamc@462	1368
adamc@856	1369 int uw_print(uw_context ctx, int fd) {
adamc@856	1370 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1371
adamc@856	1372 if (n < 0)
adamc@856	1373 return n;
adamc@856	1374
adamc@856	1375 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1376
adamc@856	1377 if (n < 0)
adamc@856	1378 return n;
adamc@856	1379
adamc@856	1380 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1381 }
adamc@856	1382
adamc@860	1383 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1384 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1385
adamc@860	1386 if (n < 0)
adamc@860	1387 return n;
adamc@860	1388
adamc@860	1389 n = output(data, "\r\n", 2);
adamc@860	1390
adamc@860	1391 if (n < 0)
adamc@860	1392 return n;
adamc@860	1393
adamc@860	1394 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1395 }
adamc@860	1396
adamc@462	1397 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1398 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1399 }
adamc@462	1400
adamc@462	1401 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1402 int len = strlen(s);
adamc@462	1403
adamc@462	1404 uw_check_headers(ctx, len + 1);
adamc@666	1405 strcpy(ctx->outHeaders.front, s);
adamc@666	1406 ctx->outHeaders.front += len;
adamc@562	1407 }
adamc@562	1408
adam@1934	1409 int uw_has_contentLength(uw_context ctx) {
adam@1934	1410 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934	1411 }
adam@1934	1412
adamc@1110	1413 void uw_clear_headers(uw_context ctx) {
adam@1369	1414 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1415 }
adamc@1110	1416
adam@1932	1417 void uw_Basis_clear_page(uw_context ctx) {
adam@1932	1418 uw_buffer_reset(&ctx->page);
adam@1932	1419 }
adam@1932	1420
adamc@562	1421 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1422 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1423 }
adamc@562	1424
adamc@562	1425 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1426 int len = strlen(s);
adamc@562	1427
adamc@562	1428 uw_check_script(ctx, len + 1);
adamc@666	1429 strcpy(ctx->script.front, s);
adamc@666	1430 ctx->script.front += len;
adamc@562	1431 }
adamc@562	1432
adam@1446	1433 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1434 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1435 uw_write_script(ctx, "sig=\"");
adam@1671	1436 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1437 uw_write_script(ctx, "\";");
adam@1671	1438 }
adam@1671	1439
adam@1446	1440 return ctx->script.start;
adam@1446	1441 }
adam@1446	1442
adamc@695	1443 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1444 if (s[0] == 0)
adamc@695	1445 return "";
adamc@695	1446 else {
adamc@695	1447 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1448 sprintf(r, " onload='%s'", s);
adamc@695	1449 return r;
adamc@695	1450 }
adamc@695	1451 }
adamc@695	1452
adamc@1042	1453 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1454 if (ctx->script_header[0] == 0)
adamc@1042	1455 return "";
adamc@1042	1456 else {
vshabanoff@1763	1457 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763	1458 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042	1459 return r;
adamc@1042	1460 }
adamc@1042	1461 }
adamc@1042	1462
adamc@694	1463 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1464 if (ctx->client == NULL) {
adamc@736	1465 if (ctx->needs_sig) {
adamc@1094	1466 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1467 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1468 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1469 return r;
adamc@736	1470 }
adamc@736	1471 else
adamc@736	1472 return "";
adamc@736	1473 } else {
adamc@1094	1474 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1475 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1476 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1477 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1478 (ctx->isPost ? "true" : "false"),
adamc@682	1479 ctx->client->id,
adamc@682	1480 ctx->client->pass,
adamc@1094	1481 ctx->app->url_prefix,
adamc@1094	1482 ctx->app->timeout,
adamc@736	1483 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1484 sig,
adamc@736	1485 ctx->needs_sig ? "\";" : "");
adamc@679	1486 return r;
adamc@668	1487 }
adamc@667	1488 }
adamc@667	1489
adamc@574	1490 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1491 char r, s2;
adamc@574	1492
adam@1446	1493 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1494
adamc@666	1495 r = s2 = ctx->heap.front;
adamc@574	1496 *s2++ = '"';
adamc@574	1497
adamc@574	1498 for (; *s; s++) {
adam@1286	1499 unsigned char c = *s;
adamc@574	1500
adamc@574	1501 switch (c) {
adamc@574	1502 case '"':
adamc@574	1503 strcpy(s2, "\\\"");
adamc@574	1504 s2 += 2;
adamc@574	1505 break;
adamc@1027	1506 case '\'':
adamc@1027	1507 strcpy(s2, "\\047");
adamc@1027	1508 s2 += 4;
adamc@1027	1509 break;
adamc@574	1510 case '\\':
adamc@574	1511 strcpy(s2, "\\\\");
adamc@574	1512 s2 += 2;
adamc@574	1513 break;
adam@1457	1514 case '<':
adam@1457	1515 strcpy(s2, "\\074");
adam@1457	1516 s2 += 4;
adam@1457	1517 break;
adamc@574	1518 default:
adam@1286	1519 if (isprint((int)c) \|\| c >= 128)
adamc@574	1520 *s2++ = c;
adamc@574	1521 else {
adam@1429	1522 sprintf(s2, "\\%03o", c);
adamc@574	1523 s2 += 4;
adamc@574	1524 }
adamc@574	1525 }
adamc@574	1526 }
adamc@574	1527
adamc@574	1528 strcpy(s2, "\"");
adamc@910	1529 ctx->heap.front = s2 + 2;
adamc@574	1530 return r;
adamc@574	1531 }
adamc@574	1532
adam@1286	1533 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1534 unsigned char c = c1;
adamc@1025	1535 char r, s2;
adamc@1025	1536
adam@1446	1537 uw_check_heap(ctx, 7);
adamc@1025	1538
adamc@1025	1539 r = s2 = ctx->heap.front;
adamc@1025	1540 *s2++ = '"';
adamc@1025	1541
adamc@1025	1542 switch (c) {
adamc@1025	1543 case '"':
adamc@1025	1544 strcpy(s2, "\\\"");
adamc@1025	1545 s2 += 2;
adamc@1025	1546 break;
adamc@1027	1547 case '\'':
adamc@1027	1548 strcpy(s2, "\\047");
adamc@1027	1549 s2 += 4;
adamc@1027	1550 break;
adamc@1025	1551 case '\\':
adamc@1025	1552 strcpy(s2, "\\\\");
adamc@1025	1553 s2 += 2;
adamc@1025	1554 break;
adam@1457	1555 case '<':
adam@1457	1556 strcpy(s2, "\\074");
adam@1457	1557 s2 += 4;
adam@1457	1558 break;
adamc@1025	1559 default:
adam@1286	1560 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1561 *s2++ = c;
adamc@1025	1562 else {
adam@1429	1563 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1564 s2 += 4;
adamc@1025	1565 }
adamc@1025	1566 }
adamc@1025	1567
adamc@1025	1568 strcpy(s2, "\"");
adamc@1025	1569 ctx->heap.front = s2 + 2;
adamc@1025	1570 return r;
adamc@1025	1571 }
adamc@1025	1572
adamc@574	1573 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1574 char r, s2;
adamc@574	1575
adam@1446	1576 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1577
adamc@666	1578 r = s2 = ctx->script.front;
adamc@574	1579 *s2++ = '"';
adamc@574	1580
adamc@574	1581 for (; *s; s++) {
adam@1286	1582 unsigned char c = *s;
adamc@574	1583
adamc@574	1584 switch (c) {
adamc@577	1585 case '\'':
adamc@1027	1586 strcpy(s2, "\\");
adamc@574	1587 s2 += 2;
adamc@574	1588 break;
adamc@574	1589 case '\\':
adamc@574	1590 strcpy(s2, "\\\\");
adamc@574	1591 s2 += 2;
adamc@574	1592 break;
adam@1457	1593 case '<':
adam@1457	1594 strcpy(s2, "\\074");
adam@1457	1595 s2 += 4;
adam@1457	1596 break;
adamc@574	1597 default:
adam@1286	1598 if (isprint((int)c) \|\| c >= 128)
adamc@574	1599 *s2++ = c;
adamc@574	1600 else {
adam@1429	1601 sprintf(s2, "\\%03o", c);
adamc@574	1602 s2 += 4;
adamc@574	1603 }
adamc@574	1604 }
adamc@574	1605 }
adamc@574	1606
adamc@574	1607 strcpy(s2, "\"");
adamc@666	1608 ctx->script.front = s2 + 1;
adamc@574	1609 return r;
adamc@574	1610 }
adamc@574	1611
adamc@682	1612 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1613 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1614 return "null";
adamc@682	1615 else {
adamc@682	1616 int len;
adamc@682	1617 char *r;
adamc@682	1618
adamc@682	1619 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1620 r = ctx->heap.front;
adamc@682	1621 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1622 ctx->heap.front += len+1;
adamc@682	1623 return r;
adamc@682	1624 }
adamc@682	1625 }
adamc@682	1626
adam@1446	1627 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1628 int len;
adamc@577	1629 size_t s_len = strlen(s);
adamc@562	1630
grrwlf@1998	1631 if(ctx->id < 0)
grrwlf@1998	1632 uw_error(ctx, FATAL, "Attempt to create client source using inappropriate context");
grrwlf@1998	1633
adam@1446	1634 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1635 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1636 ctx->script.front += len;
adamc@666	1637 strcpy(ctx->script.front, s);
adamc@666	1638 ctx->script.front += s_len;
adamc@970	1639 strcpy(ctx->script.front, "));");
adamc@972	1640 ctx->script.front += 3;
adamc@562	1641
adam@1446	1642 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1643 return r;
adam@1446	1644 }
adam@1446	1645
adam@1446	1646 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1647 int len;
adamc@577	1648 size_t s_len = strlen(s);
adamc@577	1649
adam@1446	1650 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1651 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1652 ctx->script.front += len;
adamc@666	1653 strcpy(ctx->script.front, s);
adamc@666	1654 ctx->script.front += s_len;
adamc@970	1655 strcpy(ctx->script.front, "));");
adamc@972	1656 ctx->script.front += 3;
adamc@577	1657
adamc@577	1658 return uw_unit_v;
adamc@577	1659 }
adamc@577	1660
adamc@311	1661 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1662 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1663 }
adamc@117	1664
adamc@311	1665 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1666 *(ctx->page.front)++ = c;
adam@1413	1667 *ctx->page.front = 0;
adamc@117	1668 }
adamc@117	1669
adamc@311	1670 void uw_writec(uw_context ctx, char c) {
adam@1413	1671 uw_check(ctx, 2);
adamc@311	1672 uw_writec_unsafe(ctx, c);
adamc@117	1673 }
adamc@117	1674
adam@2085	1675 void uw_Basis_writec(uw_context ctx, char c) {
adam@2085	1676 uw_writec(ctx, c);
adam@2085	1677 }
adam@2085	1678
adamc@311	1679 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1680 int len = strlen(s);
adamc@666	1681 memcpy(ctx->page.front, s, len);
adamc@666	1682 ctx->page.front += len;
adamc@117	1683 }
adamc@117	1684
adamc@311	1685 void uw_write(uw_context ctx, const char* s) {
adamc@311	1686 uw_check(ctx, strlen(s) + 1);
adamc@311	1687 uw_write_unsafe(ctx, s);
adamc@666	1688 *ctx->page.front = 0;
adamc@102	1689 }
adamc@106	1690
ziv@2204	1691 void uw_recordingStart(uw_context ctx) {
ziv@2204	1692 ctx->recording = ctx->page.front;
ziv@2204	1693 }
ziv@2204	1694
ziv@2204	1695 char *uw_recordingRead(uw_context ctx) {
ziv@2209	1696 return strdup(ctx->recording);
ziv@2204	1697 }
ziv@2204	1698
adamc@311	1699 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1700 char *result;
adamc@136	1701 int len;
adamc@311	1702 uw_check_heap(ctx, INTS_MAX);
adamc@666	1703 result = ctx->heap.front;
adamc@276	1704 sprintf(result, "%lld%n", n, &len);
adamc@666	1705 ctx->heap.front += len+1;
adamc@136	1706 return result;
adamc@106	1707 }
adamc@106	1708
adamc@311	1709 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1710 char *result;
adamc@136	1711 int len;
adamc@311	1712 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1713 result = ctx->heap.front;
adam@1920	1714 sprintf(result, "%.16g%n", n, &len);
adamc@666	1715 ctx->heap.front += len+1;
adamc@136	1716 return result;
adamc@106	1717 }
adamc@106	1718
adamc@311	1719 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1720 int len = strlen(s);
adamc@136	1721 char result, p;
adamc@311	1722 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1723
adamc@666	1724 result = p = ctx->heap.front;
adamc@136	1725
adamc@136	1726 for (; *s; s++) {
adamc@1054	1727 unsigned char c = *s;
adamc@136	1728
adamc@136	1729 if (c == '"') {
adamc@136	1730 strcpy(p, """);
adamc@136	1731 p += 6;
adamc@136	1732 } else if (c == '&') {
adamc@136	1733 strcpy(p, "&");
adamc@136	1734 p += 5;
adamc@136	1735 }
adamc@1059	1736 else
adamc@136	1737 *p++ = c;
adamc@136	1738 }
adamc@136	1739
adamc@137	1740 *p++ = 0;
adamc@666	1741 ctx->heap.front = p;
adamc@136	1742 return result;
adamc@106	1743 }
adamc@106	1744
adamc@1011	1745 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1746 char result, p;
adamc@1011	1747 uw_check_heap(ctx, 7);
adamc@1011	1748
adamc@1011	1749 result = p = ctx->heap.front;
adamc@1011	1750
adamc@1011	1751 if (c == '"') {
adamc@1011	1752 strcpy(p, """);
adamc@1011	1753 p += 6;
adamc@1011	1754 } else if (c == '&') {
adamc@1011	1755 strcpy(p, "&");
adamc@1011	1756 p += 5;
adamc@1011	1757 }
adamc@1059	1758 else
adamc@1011	1759 *p++ = c;
adamc@1011	1760
adamc@1011	1761 *p++ = 0;
adamc@1011	1762 ctx->heap.front = p;
adamc@1011	1763 return result;
adamc@1011	1764 }
adamc@1011	1765
adamc@721	1766 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1767 return s;
adamc@721	1768 }
adamc@721	1769
adamc@311	1770 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1771 int len;
adamc@117	1772
adamc@666	1773 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1774 ctx->page.front += len;
adamc@106	1775 }
adamc@106	1776
adamc@428	1777 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1778 uw_check(ctx, INTS_MAX);
adamc@311	1779 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1780
adamc@428	1781 return uw_unit_v;
adamc@106	1782 }
adamc@106	1783
adamc@428	1784 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1785 int len;
adamc@117	1786
adamc@311	1787 uw_check(ctx, FLOATS_MAX);
adamc@666	1788 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1789 ctx->page.front += len;
adamc@428	1790
adamc@428	1791 return uw_unit_v;
adamc@117	1792 }
adamc@117	1793
adamc@428	1794 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1795 uw_check(ctx, strlen(s) * 6);
adamc@117	1796
adamc@106	1797 for (; *s; s++) {
adamc@1054	1798 unsigned char c = *s;
adamc@106	1799
adamc@106	1800 if (c == '"')
adamc@311	1801 uw_write_unsafe(ctx, """);
adamc@136	1802 else if (c == '&')
adamc@311	1803 uw_write_unsafe(ctx, "&");
adamc@1059	1804 else
adamc@311	1805 uw_writec_unsafe(ctx, c);
adamc@106	1806 }
adamc@428	1807
adamc@428	1808 return uw_unit_v;
adamc@106	1809 }
adamc@120	1810
adamc@1011	1811 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1812 uw_check(ctx, 6);
adamc@1011	1813
adamc@1011	1814 if (c == '"')
adamc@1011	1815 uw_write_unsafe(ctx, """);
adamc@1011	1816 else if (c == '&')
adamc@1011	1817 uw_write_unsafe(ctx, "&");
adamc@1059	1818 else
adamc@1011	1819 uw_writec_unsafe(ctx, c);
adamc@1011	1820
adamc@1011	1821 return uw_unit_v;
adamc@1011	1822 }
adamc@1011	1823
adamc@120	1824
adamc@311	1825 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1826 int len;
adamc@137	1827 char *r;
adamc@137	1828
adamc@311	1829 uw_check_heap(ctx, INTS_MAX);
adamc@666	1830 r = ctx->heap.front;
adamc@276	1831 sprintf(r, "%lld%n", n, &len);
adamc@666	1832 ctx->heap.front += len+1;
adamc@137	1833 return r;
adamc@120	1834 }
adamc@120	1835
adamc@682	1836 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1837 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1838 return "";
adamc@682	1839 else {
adamc@682	1840 int len;
adamc@682	1841 char *r;
adamc@679	1842
adamc@682	1843 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1844 r = ctx->heap.front;
adamc@682	1845 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1846 ctx->heap.front += len+1;
adamc@682	1847 return r;
adamc@682	1848 }
adamc@679	1849 }
adamc@679	1850
adamc@311	1851 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1852 int len;
adamc@137	1853 char *r;
adamc@137	1854
adamc@311	1855 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1856 r = ctx->heap.front;
adamc@137	1857 sprintf(r, "%g%n", n, &len);
adamc@666	1858 ctx->heap.front += len+1;
adamc@137	1859 return r;
adamc@120	1860 }
adamc@120	1861
adamc@311	1862 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1863 char r, p;
adamc@137	1864
adamc@925	1865 if (s[0] == '\0')
adamc@925	1866 return "_";
adamc@925	1867
adamc@925	1868 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1869
adamc@925	1870 r = p = ctx->heap.front;
adamc@925	1871 if (s[0] == '_')
adamc@925	1872 *p++ = '_';
adamc@925	1873
adamc@925	1874 for (; *s; s++) {
adamc@1087	1875 unsigned char c = *s;
adamc@137	1876
adamc@137	1877 if (c == ' ')
adamc@137	1878 *p++ = '+';
adamc@137	1879 else if (isalnum(c))
adamc@137	1880 *p++ = c;
adamc@137	1881 else {
adamc@1259	1882 sprintf(p, ".%02X", c);
adamc@137	1883 p += 3;
adamc@137	1884 }
adamc@137	1885 }
adamc@137	1886
adamc@137	1887 *p++ = 0;
adamc@666	1888 ctx->heap.front = p;
adamc@137	1889 return r;
adamc@120	1890 }
adamc@120	1891
adamc@311	1892 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1893 if (b == uw_Basis_False)
adamc@186	1894 return "0";
adamc@186	1895 else
adamc@186	1896 return "1";
adamc@186	1897 }
adamc@186	1898
adam@1620	1899 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1900 char *r;
adam@1620	1901 int len;
adam@1620	1902 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1903 r = ctx->heap.front;
adam@1620	1904 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1905 ctx->heap.front += len+1;
adam@1620	1906 return r;
adam@1620	1907 }
adam@1620	1908
adamc@311	1909 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1910 int len;
adamc@120	1911
adamc@666	1912 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1913 ctx->page.front += len;
adamc@120	1914 }
adamc@120	1915
adamc@428	1916 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1917 uw_check(ctx, INTS_MAX);
adamc@311	1918 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1919
adamc@428	1920 return uw_unit_v;
adamc@120	1921 }
adamc@120	1922
adamc@682	1923 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1924 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1925 int len;
phurst@1981	1926
adamc@682	1927 uw_check(ctx, INTS_MAX + 1);
adamc@682	1928 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1929 ctx->page.front += len;
adamc@682	1930 }
phurst@1981	1931
adamc@679	1932 return uw_unit_v;
adamc@679	1933 }
adamc@679	1934
adamc@428	1935 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1936 int len;
adamc@120	1937
adamc@311	1938 uw_check(ctx, FLOATS_MAX);
adamc@666	1939 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1940 ctx->page.front += len;
adamc@428	1941
adamc@428	1942 return uw_unit_v;
adamc@120	1943 }
adamc@120	1944
adamc@488	1945 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1946 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1947 }
adamc@488	1948
adam@1404	1949 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1950 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1951 }
adam@1404	1952
adamc@428	1953 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1954 if (s[0] == '\0') {
adamc@925	1955 uw_check(ctx, 1);
adamc@925	1956 uw_writec_unsafe(ctx, '_');
adamc@925	1957 return uw_unit_v;
adamc@925	1958 }
adamc@925	1959
adamc@925	1960 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1961
adamc@925	1962 if (s[0] == '_')
adamc@925	1963 uw_writec_unsafe(ctx, '_');
adamc@120	1964
adamc@120	1965 for (; *s; s++) {
adamc@1087	1966 unsigned char c = *s;
adamc@120	1967
adamc@120	1968 if (c == ' ')
adamc@311	1969 uw_writec_unsafe(ctx, '+');
adamc@120	1970 else if (isalnum(c))
adamc@311	1971 uw_writec_unsafe(ctx, c);
adamc@120	1972 else {
adamc@1259	1973 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1974 ctx->page.front += 3;
adamc@120	1975 }
adamc@120	1976 }
adamc@428	1977
adamc@428	1978 return uw_unit_v;
adamc@120	1979 }
adamc@120	1980
adamc@428	1981 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1982 if (b == uw_Basis_False)
adamc@311	1983 uw_writec(ctx, '0');
adamc@186	1984 else
adamc@311	1985 uw_writec(ctx, '1');
adamc@428	1986
adamc@428	1987 return uw_unit_v;
adamc@186	1988 }
adamc@186	1989
adam@1620	1990 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	1991 int len;
phurst@1981	1992
adam@1620	1993 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	1994 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1995 ctx->page.front += len;
phurst@1981	1996
adam@1620	1997 return uw_unit_v;
adam@1620	1998 }
adam@1620	1999
adamc@120	2000
adamc@311	2001 static char uw_unurlify_advance(char s) {
adamc@144	2002 char *new_s = strchr(s, '/');
adamc@120	2003
adamc@120	2004 if (new_s)
adamc@120	2005 *new_s++ = 0;
adamc@120	2006 else
adamc@144	2007 new_s = strchr(s, 0);
adamc@144	2008
adamc@144	2009 return new_s;
adamc@144	2010 }
adamc@144	2011
adamc@311	2012 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	2013 char new_s = uw_unurlify_advance(s);
adamc@311	2014 uw_Basis_int r;
adamc@120	2015
adamc@276	2016 r = atoll(*s);
adamc@120	2017 *s = new_s;
adamc@120	2018 return r;
adamc@120	2019 }
adamc@120	2020
adamc@311	2021 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	2022 char new_s = uw_unurlify_advance(s);
adamc@311	2023 uw_Basis_float r;
adamc@120	2024
adamc@120	2025 r = atof(*s);
adamc@120	2026 *s = new_s;
adamc@120	2027 return r;
adamc@120	2028 }
adamc@120	2029
adamc@488	2030 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	2031 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	2032 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	2033 return r;
adamc@488	2034 }
adamc@488	2035
adamc@1023	2036 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	2037 char s1, s2 = s;
adamc@144	2038 int n;
adamc@136	2039
adamc@1023	2040 if (!fromClient) {
adamc@1023	2041 if (*s2 == '_')
adamc@1023	2042 ++s2;
adamc@1259	2043 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	2044 s2 += 3;
adamc@1023	2045 }
adamc@925	2046
adamc@927	2047 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	2048 unsigned char c = *s2;
adamc@136	2049
adamc@136	2050 switch (c) {
adamc@136	2051 case '+':
adamc@136	2052 *s1 = ' ';
adamc@136	2053 break;
adamc@136	2054 case '%':
adamc@169	2055 if (s2[1] == 0)
adamc@311	2056 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	2057 if (s2[2] == 0)
adamc@311	2058 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	2059 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2060 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	2061 *s1 = n;
adamc@136	2062 s2 += 2;
adamc@136	2063 break;
adamc@1259	2064 case '.':
adamc@1259	2065 if (!fromClient) {
adamc@1259	2066 if (s2[1] == 0)
adamc@1259	2067 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	2068 if (s2[2] == 0)
adamc@1259	2069 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	2070 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2071 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	2072 *s1 = n;
adamc@1259	2073 s2 += 2;
adamc@1259	2074 break;
adamc@1259	2075 }
adamc@136	2076 default:
adamc@136	2077 *s1 = c;
adamc@136	2078 }
adamc@136	2079 }
adamc@136	2080 *s1++ = 0;
adamc@144	2081 return s1;
adamc@144	2082 }
adamc@144	2083
adamc@311	2084 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	2085 char new_s = uw_unurlify_advance(s);
adamc@311	2086 uw_Basis_bool r;
phurst@1981	2087
adamc@186	2088 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2089 r = uw_Basis_False;
adamc@186	2090 else
adamc@311	2091 r = uw_Basis_True;
adamc@186	2092
adamc@186	2093 *s = new_s;
adamc@186	2094 return r;
adamc@186	2095 }
adamc@186	2096
adamc@311	2097 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2098 char new_s = uw_unurlify_advance(s);
adamc@1134	2099 char *r;
adamc@1134	2100 int len;
adamc@144	2101
adamc@200	2102 len = strlen(*s);
adamc@311	2103 uw_check_heap(ctx, len + 1);
adamc@144	2104
adamc@666	2105 r = ctx->heap.front;
adamc@1023	2106 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2107 *s = new_s;
adamc@1023	2108 return r;
adamc@1023	2109 }
adamc@1023	2110
adamc@1109	2111 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2112 s = uw_unurlify_advance(s);
adamc@1109	2113 return uw_unit_v;
adamc@1109	2114 }
adamc@1109	2115
adamc@1023	2116 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2117 char new_s = uw_unurlify_advance(s);
adamc@1134	2118 char *r;
adamc@1134	2119 int len;
adamc@1023	2120
adamc@1023	2121 len = strlen(*s);
adamc@1023	2122 uw_check_heap(ctx, len + 1);
adamc@1023	2123
adamc@1023	2124 r = ctx->heap.front;
adamc@1023	2125 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2126 *s = new_s;
adamc@136	2127 return r;
adamc@120	2128 }
adamc@135	2129
adamc@135	2130
adamc@311	2131 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2132 int len;
adamc@286	2133 char *r;
adamc@286	2134
adamc@311	2135 uw_check_heap(ctx, INTS_MAX);
adamc@666	2136 r = ctx->heap.front;
adamc@286	2137 sprintf(r, "%lld%n", n, &len);
adamc@666	2138 ctx->heap.front += len+1;
adamc@286	2139 return r;
adamc@286	2140 }
adamc@286	2141
adamc@428	2142 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2143 int len;
adamc@286	2144
adamc@311	2145 uw_check(ctx, INTS_MAX);
adamc@666	2146 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2147 ctx->page.front += len;
phurst@1981	2148
adamc@428	2149 return uw_unit_v;
adamc@286	2150 }
adamc@286	2151
adam@1358	2152 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2153 unsigned int n = ch;
adam@1358	2154 int len;
adam@1358	2155 char *r;
adam@1358	2156
adam@1358	2157 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2158 r = ctx->heap.front;
adam@1358	2159 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2160 ctx->heap.front += len+1;
adam@1358	2161 return r;
adam@1358	2162 }
adam@1358	2163
adam@1358	2164 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2165 unsigned int n = ch;
adam@1358	2166 int len;
adam@1358	2167
adam@1358	2168 uw_check(ctx, INTS_MAX+3);
adam@1358	2169 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2170 ctx->page.front += len;
adam@1358	2171 return uw_unit_v;
adam@1358	2172 }
adam@1358	2173
adamc@311	2174 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2175 int len;
adamc@286	2176 char *r;
adamc@286	2177
adamc@311	2178 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2179 r = ctx->heap.front;
adamc@286	2180 sprintf(r, "%g%n", n, &len);
adamc@666	2181 ctx->heap.front += len+1;
adamc@286	2182 return r;
adamc@286	2183 }
adamc@286	2184
adamc@428	2185 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2186 int len;
adamc@286	2187
adamc@311	2188 uw_check(ctx, FLOATS_MAX);
adamc@666	2189 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2190 ctx->page.front += len;
adamc@428	2191
adamc@428	2192 return uw_unit_v;
adamc@286	2193 }
adamc@286	2194
adam@1365	2195 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2196 int len;
adam@1360	2197 char *r;
adam@1360	2198
adam@1360	2199 uw_check_heap(ctx, INTS_MAX);
adam@1360	2200 r = ctx->heap.front;
adamc@1377	2201 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2202 ctx->heap.front += len+1;
adam@1360	2203 return r;
adam@1360	2204 }
adam@1360	2205
adam@1365	2206 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2207 int len;
adam@1360	2208
adam@1360	2209 uw_check(ctx, INTS_MAX);
adam@1360	2210 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2211 ctx->page.front += len;
phurst@1981	2212
adam@1360	2213 return uw_unit_v;
adam@1360	2214 }
adam@1360	2215
adam@1444	2216 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2217 char r, s2;
adamc@137	2218
adamc@311	2219 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2220
adamc@666	2221 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2222 unsigned char c = *s;
adamc@137	2223
adamc@137	2224 switch (c) {
adamc@137	2225 case '<':
adamc@137	2226 strcpy(s2, "<");
adamc@137	2227 s2 += 4;
adamc@137	2228 break;
adamc@137	2229 case '&':
adamc@137	2230 strcpy(s2, "&");
adamc@137	2231 s2 += 5;
adamc@137	2232 break;
adamc@137	2233 default:
adamc@1059	2234 *s2++ = c;
adamc@137	2235 }
adamc@137	2236 }
adamc@137	2237
adamc@137	2238 *s2++ = 0;
adamc@666	2239 ctx->heap.front = s2;
adamc@137	2240 return r;
adamc@135	2241 }
adamc@135	2242
adamc@428	2243 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2244 uw_check(ctx, strlen(s) * 6);
adamc@135	2245
adamc@135	2246 for (; *s; s++) {
adamc@1054	2247 unsigned char c = *s;
adamc@135	2248
adamc@135	2249 switch (c) {
adamc@135	2250 case '<':
adamc@311	2251 uw_write_unsafe(ctx, "<");
adamc@135	2252 break;
adamc@135	2253 case '&':
adamc@311	2254 uw_write_unsafe(ctx, "&");
adamc@135	2255 break;
adamc@135	2256 default:
adamc@1059	2257 uw_writec_unsafe(ctx, c);
adamc@135	2258 }
adamc@135	2259 }
adamc@428	2260
adamc@428	2261 return uw_unit_v;
adamc@135	2262 }
adamc@180	2263
adamc@311	2264 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2265 if (b == uw_Basis_False)
adamc@286	2266 return "False";
adamc@286	2267 else
adamc@286	2268 return "True";
adamc@286	2269 }
adamc@286	2270
adamc@428	2271 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2272 if (b == uw_Basis_False) {
adamc@311	2273 uw_check(ctx, 6);
adamc@666	2274 strcpy(ctx->page.front, "False");
adamc@666	2275 ctx->page.front += 5;
adamc@286	2276 } else {
adamc@311	2277 uw_check(ctx, 5);
adamc@666	2278 strcpy(ctx->page.front, "True");
adamc@666	2279 ctx->page.front += 4;
adamc@286	2280 }
adamc@428	2281
adamc@428	2282 return uw_unit_v;
adamc@286	2283 }
adamc@286	2284
adamc@436	2285 #define TIME_FMT "%x %X"
adamc@438	2286 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2287 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2288
adam@1629	2289 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2290
adamc@436	2291 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2292 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2293 }
adamc@436	2294
adamc@436	2295 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2296 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2297 }
adamc@436	2298
adam@1446	2299 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2300 int len;
adam@1446	2301 char *r;
adam@1446	2302
adam@1446	2303 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2304 r = ctx->heap.front;
adam@1446	2305 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2306 ctx->heap.front += len+1;
adam@1446	2307 return r;
adam@1446	2308 }
adam@1446	2309
adam@1446	2310 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2311 int len;
adam@1446	2312
adam@1446	2313 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2314 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2315 ctx->page.front += len;
phurst@1981	2316
adam@1446	2317 return uw_unit_v;
adam@1446	2318 }
adam@1446	2319
adamc@821	2320 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2321 while (n >= 0) {
adam@1388	2322 if (*s == 0)
adam@1388	2323 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2324
adam@1388	2325 if (n == 0)
adam@1388	2326 return *s;
adam@1388	2327
adam@1388	2328 --n;
adam@1388	2329 ++s;
adam@1388	2330 }
adam@1388	2331
adam@1388	2332 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2333 }
adamc@821	2334
adamc@821	2335 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2336 while (n >= 0) {
adam@1388	2337 if (*s == 0 \|\| n == 0)
adam@1388	2338 return s;
adam@1388	2339
adam@1388	2340 --n;
adam@1388	2341 ++s;
adam@1388	2342 }
adam@1388	2343
adam@1388	2344 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2345 }
adamc@821	2346
adamc@828	2347 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2348 return strlen(s);
adamc@828	2349 }
adamc@828	2350
adam@1388	2351 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2352 while (n > 0) {
adam@1388	2353 if (*s == 0)
adam@1388	2354 return uw_Basis_False;
adam@1388	2355
adam@1388	2356 --n;
adam@1388	2357 ++s;
adam@1388	2358 }
adam@1388	2359
adam@1388	2360 return uw_Basis_True;
adam@1388	2361 }
adam@1388	2362
adamc@829	2363 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2364 return strchr(s, ch);
adamc@829	2365 }
adamc@829	2366
adamc@831	2367 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2368 return strcspn(s, chs);
adamc@831	2369 }
adamc@831	2370
adamc@829	2371 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2372 uw_Basis_string r = strchr(s, ch);
adamc@829	2373 if (r == NULL)
adamc@829	2374 return NULL;
adamc@829	2375 else {
adamc@829	2376 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2377 *nr = r - s;
adamc@829	2378 return nr;
adamc@829	2379 }
adamc@829	2380 }
adamc@829	2381
adam@1390	2382 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2383 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2384 if (r == NULL)
adam@1390	2385 return NULL;
adam@1390	2386 else {
adam@1390	2387 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2388 *nr = r - haystack;
adam@1390	2389 return nr;
adam@1390	2390 }
adam@1390	2391 }
adam@1390	2392
adamc@311	2393 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2394 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2395 char *s;
adamc@180	2396
adamc@311	2397 uw_check_heap(ctx, len);
adamc@180	2398
adamc@666	2399 s = ctx->heap.front;
adamc@180	2400
adamc@180	2401 strcpy(s, s1);
adamc@180	2402 strcat(s, s2);
adamc@666	2403 ctx->heap.front += len;
adamc@180	2404
adamc@180	2405 return s;
adamc@180	2406 }
adamc@278	2407
adamc@829	2408 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2409 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2410
adamc@829	2411 if (start < 0)
adamc@829	2412 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2413 if (len < 0)
adamc@829	2414 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2415 if (start + len > full_len)
adamc@829	2416 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2417
adamc@829	2418 if (start + len == full_len)
adamc@829	2419 return &s[start];
adamc@829	2420 else {
adamc@829	2421 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2422 memcpy(r, s+start, len);
adamc@829	2423 r[len] = 0;
adamc@829	2424 return r;
adamc@829	2425 }
phurst@1981	2426
adamc@829	2427 }
adamc@829	2428
adamc@1023	2429 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2430 char *r;
adamc@1023	2431
adamc@1023	2432 uw_check_heap(ctx, 2);
adamc@1023	2433 r = ctx->heap.front;
adamc@1023	2434 r[0] = ch;
adamc@1023	2435 r[1] = 0;
adamc@1023	2436
adamc@1023	2437 ctx->heap.front += 2;
adamc@1023	2438
adamc@1023	2439 return r;
adamc@1023	2440 }
adamc@1023	2441
adamc@737	2442 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2443 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2444 char *s;
adamc@278	2445
adamc@311	2446 uw_check_heap(ctx, len);
adamc@278	2447
adamc@666	2448 s = ctx->heap.front;
adamc@278	2449
adamc@278	2450 strcpy(s, s1);
adamc@666	2451 ctx->heap.front += len;
adamc@278	2452
adamc@278	2453 return s;
adamc@278	2454 }
adamc@280	2455
adam@1295	2456 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2457 if (ctx->error_message[0]) {
adam@1295	2458 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2459 ctx->error_message[0] = 0;
adam@1295	2460 return s;
adam@1295	2461 } else
adam@1295	2462 return NULL;
adam@1295	2463 }
adam@1295	2464
adamc@737	2465 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2466 if (s1)
adamc@737	2467 return uw_strdup(ctx, s1);
adamc@493	2468 else
adamc@493	2469 return NULL;
adamc@493	2470 }
adamc@493	2471
adamc@742	2472 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2473 char *r = uw_malloc(ctx, len);
adamc@742	2474 memcpy(r, p, len);
adamc@742	2475 return r;
adamc@742	2476 }
adamc@280	2477
adamc@879	2478 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2479
adamc@311	2480 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2481 int len;
adamc@281	2482 char *r;
adamc@281	2483
adamc@311	2484 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2485 r = ctx->heap.front;
adamc@879	2486 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2487 ctx->heap.front += len+1;
adamc@281	2488 return r;
adamc@281	2489 }
adamc@281	2490
adamc@467	2491 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2492 if (n == NULL)
adamc@467	2493 return "NULL";
adamc@467	2494 else
adamc@467	2495 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2496 }
adamc@467	2497
adam@1920	2498 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879	2499
adamc@311	2500 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2501 int len;
adamc@281	2502 char *r;
adamc@281	2503
adamc@311	2504 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2505 r = ctx->heap.front;
adamc@879	2506 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2507 ctx->heap.front += len+1;
adamc@281	2508 return r;
adamc@281	2509 }
adamc@281	2510
adamc@467	2511 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2512 if (n == NULL)
adamc@467	2513 return "NULL";
adamc@467	2514 else
adamc@467	2515 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2516 }
adamc@467	2517
adam@1834	2518 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2519 char *uw_sqlsuffixString = "::text";
adamc@1011	2520 char *uw_sqlsuffixChar = "::char";
adamc@281	2521
adamc@311	2522 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2523 char r, s2;
adamc@280	2524
adamc@879	2525 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2526
adamc@666	2527 r = s2 = ctx->heap.front;
adamc@879	2528 if (uw_Estrings)
adamc@879	2529 *s2++ = 'E';
adamc@280	2530 *s2++ = '\'';
adamc@280	2531
adamc@280	2532 for (; *s; s++) {
adamc@280	2533 char c = *s;
adamc@280	2534
adamc@280	2535 switch (c) {
adamc@280	2536 case '\'':
adamc@885	2537 if (uw_Estrings)
adamc@885	2538 strcpy(s2, "\\'");
adamc@885	2539 else
adamc@885	2540 strcpy(s2, "''");
adamc@280	2541 s2 += 2;
adamc@280	2542 break;
adamc@280	2543 case '\\':
adamc@885	2544 if (uw_Estrings) {
adamc@885	2545 strcpy(s2, "\\\\");
adamc@885	2546 s2 += 2;
adamc@885	2547 } else
adamc@885	2548 *s2++ = '\\';
adamc@280	2549 break;
adamc@280	2550 default:
adamc@1150	2551 if (isprint((int)c))
adamc@280	2552 *s2++ = c;
adamc@879	2553 else if (uw_Estrings) {
adam@1857	2554 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2555 s2 += 4;
adamc@280	2556 }
adamc@879	2557 else
adam@1689	2558 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2559 }
adamc@280	2560 }
adamc@280	2561
adamc@879	2562 *s2++ = '\'';
adamc@879	2563 strcpy(s2, uw_sqlsuffixString);
adamc@879	2564 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2565 return r;
adamc@280	2566 }
adamc@281	2567
adamc@1011	2568 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2569 char r, s2;
adamc@1011	2570
adamc@1011	2571 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2572
adamc@1011	2573 r = s2 = ctx->heap.front;
adamc@1011	2574 if (uw_Estrings)
adamc@1011	2575 *s2++ = 'E';
adamc@1011	2576 *s2++ = '\'';
adamc@1011	2577
adamc@1011	2578 switch (c) {
adamc@1011	2579 case '\'':
adamc@1011	2580 if (uw_Estrings)
adamc@1011	2581 strcpy(s2, "\\'");
adamc@1011	2582 else
adamc@1011	2583 strcpy(s2, "''");
adamc@1011	2584 s2 += 2;
adamc@1011	2585 break;
adamc@1011	2586 case '\\':
adamc@1011	2587 if (uw_Estrings) {
adamc@1011	2588 strcpy(s2, "\\\\");
adamc@1011	2589 s2 += 2;
adamc@1011	2590 } else
adamc@1011	2591 *s2++ = '\\';
adamc@1011	2592 break;
adamc@1011	2593 default:
adamc@1150	2594 if (isprint((int)c))
adamc@1011	2595 *s2++ = c;
adamc@1011	2596 else if (uw_Estrings) {
adam@1857	2597 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2598 s2 += 4;
adamc@1011	2599 }
adamc@1011	2600 else
adamc@1011	2601 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2602 }
adamc@1011	2603
adamc@1011	2604 *s2++ = '\'';
adamc@1011	2605 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2606 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2607 return r;
adamc@1011	2608 }
adamc@1011	2609
adamc@879	2610 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2611
adam@1867	2612 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2613 char r, s2;
adamc@737	2614 size_t i;
adamc@737	2615
adam@1867	2616 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2617
adamc@737	2618 r = s2 = ctx->heap.front;
adamc@879	2619 if (uw_Estrings)
adamc@879	2620 *s2++ = 'E';
adam@1867	2621 else
adam@1867	2622 *s2++ = 'X';
adamc@737	2623 *s2++ = '\'';
adamc@737	2624
adamc@737	2625 for (i = 0; i < b.size; ++i) {
adam@1867	2626 unsigned char c = b.data[i];
adam@1867	2627
adam@1867	2628 if (uw_Estrings) {
adam@1867	2629 switch (c) {
adam@1867	2630 case '\'':
adamc@885	2631 strcpy(s2, "\\'");
adam@1867	2632 s2 += 2;
adam@1867	2633 break;
adam@1867	2634 case '\\':
adamc@885	2635 strcpy(s2, "\\\\\\\\");
adamc@885	2636 s2 += 4;
adam@1867	2637 break;
adam@1867	2638 default:
adam@1867	2639 if (isprint((int)c))
adam@1867	2640 *s2++ = c;
adam@1867	2641 else {
adam@1867	2642 sprintf(s2, "\\\\%03o", c);
adam@1867	2643 s2 += 5;
adam@1867	2644 }
adamc@737	2645 }
adam@1867	2646 } else {
adam@1867	2647 sprintf(s2, "%02X", c);
adam@1867	2648 s2 += 2;
adamc@737	2649 }
phurst@1981	2650 }
adamc@737	2651
adamc@879	2652 *s2++ = '\'';
adamc@879	2653 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2654 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2655 return r;
adamc@737	2656 }
adamc@737	2657
adamc@682	2658 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2659 int len;
adamc@682	2660 char *r;
adamc@682	2661 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2662
adamc@682	2663 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2664 r = ctx->heap.front;
adamc@879	2665 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2666 ctx->heap.front += len+1;
adamc@682	2667 return r;
adamc@682	2668 }
adamc@682	2669
adamc@682	2670 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2671 int len;
adamc@682	2672 char *r;
adamc@682	2673 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2674
adamc@682	2675 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2676 r = ctx->heap.front;
adamc@682	2677 sprintf(r, "%lld%n", combo, &len);
adamc@682	2678 ctx->heap.front += len+1;
adamc@682	2679 return r;
adamc@682	2680 }
adamc@682	2681
adamc@879	2682 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2683
adamc@682	2684 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2685 int len;
adamc@682	2686 char *r;
adamc@682	2687
adamc@682	2688 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2689 r = ctx->heap.front;
adamc@879	2690 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2691 ctx->heap.front += len+1;
adamc@682	2692 return r;
adamc@682	2693 }
adamc@682	2694
adamc@682	2695 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2696 int len;
adamc@682	2697 char *r;
adamc@682	2698
adamc@682	2699 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2700 r = ctx->heap.front;
adamc@682	2701 sprintf(r, "%u%n", cli, &len);
adamc@682	2702 ctx->heap.front += len+1;
adamc@682	2703 return r;
adamc@682	2704 }
adamc@682	2705
adamc@467	2706 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2707 if (s == NULL)
adamc@467	2708 return "NULL";
adamc@467	2709 else
adamc@467	2710 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2711 }
adamc@467	2712
adamc@311	2713 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2714 if (b == uw_Basis_False)
adamc@281	2715 return "FALSE";
adamc@281	2716 else
adamc@281	2717 return "TRUE";
adamc@281	2718 }
adamc@282	2719
adamc@467	2720 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2721 if (b == NULL)
adamc@467	2722 return "NULL";
adamc@467	2723 else
adamc@467	2724 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2725 }
adamc@467	2726
adamc@439	2727 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2728 size_t len;
adamc@682	2729 char r, s;
adam@1392	2730 struct tm stm = {};
adam@1392	2731 stm.tm_isdst = -1;
adamc@682	2732
adam@1365	2733 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2734 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2735 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2736 if (uw_sql_type_annotations) {
adam@1834	2737 if (t.microseconds) {
adam@1834	2738 r = uw_malloc(ctx, len + 21);
adam@1834	2739 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2740 } else {
adam@1834	2741 r = uw_malloc(ctx, len + 14);
adam@1834	2742 sprintf(r, "'%s'::timestamp", s);
adam@1834	2743 }
adam@1367	2744 } else {
adam@1834	2745 r = uw_malloc(ctx, len + 3);
adam@1834	2746 sprintf(r, "'%s'", s);
adam@1367	2747 }
adamc@682	2748 return r;
adamc@682	2749 } else
adamc@682	2750 return "<Invalid time>";
adamc@682	2751 }
adamc@682	2752
adamc@682	2753 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2754 size_t len;
adamc@439	2755 char *r;
adam@1392	2756 struct tm stm = {};
adam@1392	2757 stm.tm_isdst = -1;
adamc@439	2758
adam@1365	2759 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2760 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2761 r = ctx->heap.front;
adamc@439	2762 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2763 ctx->heap.front += len+1;
adamc@439	2764 return r;
adamc@439	2765 } else
adamc@439	2766 return "<Invalid time>";
adamc@439	2767 }
adamc@439	2768
adam@1364	2769 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2770 size_t len;
adam@1364	2771 char *r;
adam@1392	2772 struct tm stm = {};
adam@1392	2773 stm.tm_isdst = -1;
adam@1364	2774
adam@1365	2775 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2776 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2777 r = ctx->heap.front;
adam@1365	2778 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2779 ctx->heap.front += len;
adam@1365	2780 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2781 ctx->heap.front += 8;
adam@1364	2782 return r;
adam@1364	2783 } else
adam@1364	2784 return "<Invalid time>";
adam@1364	2785 }
adam@1364	2786
adamc@467	2787 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2788 if (t == NULL)
adamc@467	2789 return "NULL";
adamc@467	2790 else
adamc@467	2791 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2792 }
adamc@467	2793
adamc@311	2794 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2795 static uw_Basis_int true = 1;
adamc@311	2796 static uw_Basis_int false = 0;
adamc@282	2797
adamc@311	2798 if (b == uw_Basis_False)
adamc@282	2799 return (char *)&false;
adamc@282	2800 else
adamc@282	2801 return (char *)&true;
adamc@282	2802 }
adamc@284	2803
adamc@311	2804 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2805 int len;
adamc@284	2806 char *r;
adamc@284	2807
adamc@311	2808 uw_check_heap(ctx, INTS_MAX);
adamc@666	2809 r = ctx->heap.front;
adamc@284	2810 sprintf(r, "%lld%n", n, &len);
adamc@666	2811 ctx->heap.front += len+1;
adamc@284	2812 return r;
adamc@284	2813 }
adamc@285	2814
adamc@311	2815 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2816 int len;
adamc@285	2817 char *r;
adamc@285	2818
adamc@311	2819 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2820 r = ctx->heap.front;
adamc@285	2821 sprintf(r, "%g%n", n, &len);
adamc@666	2822 ctx->heap.front += len+1;
adamc@285	2823 return r;
adamc@285	2824 }
adamc@285	2825
adamc@821	2826 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2827 char *r = uw_malloc(ctx, 2);
adamc@821	2828 r[0] = ch;
adamc@821	2829 r[1] = 0;
adamc@821	2830 return r;
adamc@821	2831 }
adamc@821	2832
adamc@311	2833 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2834 if (b == uw_Basis_False)
adamc@285	2835 return "False";
adamc@285	2836 else
adamc@285	2837 return "True";
adamc@285	2838 }
adamc@288	2839
adam@1359	2840 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2841 size_t len;
adam@1352	2842 char *r;
adam@1392	2843 struct tm stm = {};
adam@1392	2844 stm.tm_isdst = -1;
adam@1352	2845
adam@1365	2846 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2847 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2848 r = ctx->heap.front;
adam@1352	2849 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2850 ctx->heap.front += len+1;
adam@1352	2851 return r;
adam@1352	2852 } else
adam@1352	2853 return "<Invalid time>";
adam@1352	2854 }
adam@1352	2855
adam@1629	2856 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2857 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2858 }
adam@1629	2859
adamc@311	2860 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2861 char *endptr;
adamc@311	2862 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2863
adamc@288	2864 if (s != '\0' && endptr == '\0') {
adamc@311	2865 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2866 *r = n;
adamc@288	2867 return r;
adamc@288	2868 } else
adamc@288	2869 return NULL;
adamc@288	2870 }
adamc@289	2871
adamc@311	2872 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2873 char *endptr;
adamc@311	2874 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2875
adamc@289	2876 if (s != '\0' && endptr == '\0') {
adamc@311	2877 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2878 *r = n;
adamc@289	2879 return r;
adamc@289	2880 } else
adamc@289	2881 return NULL;
adamc@289	2882 }
adamc@289	2883
adamc@821	2884 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2885 if (s[0] == 0) {
adamc@821	2886 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2887 r[0] = 0;
adamc@821	2888 return r;
adamc@821	2889 } else if (s[1] != 0)
adamc@821	2890 return NULL;
adamc@821	2891 else {
adamc@821	2892 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2893 r[0] = s[0];
adamc@821	2894 return r;
adamc@821	2895 }
adamc@821	2896 }
adamc@821	2897
adamc@311	2898 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2899 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2900 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2901
adamc@289	2902 if (!strcasecmp (s, "True"))
adamc@289	2903 return &true;
adamc@289	2904 else if (!strcasecmp (s, "False"))
adamc@289	2905 return &false;
adamc@289	2906 else
adamc@289	2907 return NULL;
adamc@289	2908 }
adamc@292	2909
adamc@436	2910 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2911 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2912 struct tm stm = {};
adam@1392	2913 stm.tm_isdst = -1;
adamc@436	2914
adamc@439	2915 if (dot) {
adamc@439	2916 *dot = 0;
adamc@439	2917 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2918 *dot = '.';
adamc@439	2919 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2920 r->seconds = mktime(&stm);
adam@1365	2921 r->microseconds = 0;
adamc@439	2922 return r;
adamc@439	2923 }
adamc@439	2924 else {
adamc@439	2925 *dot = '.';
adamc@439	2926 return NULL;
adamc@439	2927 }
adamc@436	2928 }
adamc@439	2929 else {
adam@2072	2930 if (strptime(s, ctx->app->time_format, &stm) == end) {
adamc@439	2931 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2932 r->seconds = mktime(&stm);
adam@1365	2933 r->microseconds = 0;
adamc@439	2934 return r;
adam@2072	2935 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@2072	2936 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@2072	2937 r->seconds = mktime(&stm);
adam@2072	2938 r->microseconds = 0;
adam@2072	2939 return r;
adam@2072	2940 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2941 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2942 r->seconds = mktime(&stm);
adam@1365	2943 r->microseconds = 0;
adamc@439	2944 return r;
adam@1632	2945 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2946 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2947 r->seconds = mktime(&stm);
adam@1632	2948 r->microseconds = 0;
adam@1632	2949 return r;
adamc@439	2950 }
adamc@439	2951 else
adamc@439	2952 return NULL;
adamc@439	2953 }
adamc@436	2954 }
adamc@436	2955
adam@1352	2956 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2957 char *end = strchr(s, 0);
adam@1374	2958 struct tm stm = {};
adam@1392	2959 stm.tm_isdst = -1;
adam@1352	2960
adam@1352	2961 if (strptime(s, fmt, &stm) == end) {
adam@1352	2962 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2963 r->seconds = mktime(&stm);
adam@1365	2964 r->microseconds = 0;
adam@1352	2965 return r;
adam@1352	2966 }
adam@1352	2967 else
adam@1352	2968 return NULL;
adam@1352	2969 }
adam@1352	2970
adamc@311	2971 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2972 char *endptr;
adamc@311	2973 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2974
adamc@292	2975 if (s != '\0' && endptr == '\0')
adamc@292	2976 return n;
adamc@292	2977 else
adam@1444	2978 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2979 }
adamc@293	2980
adamc@682	2981 #include <errno.h>
adamc@682	2982
adamc@678	2983 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2984 unsigned long long n;
adamc@682	2985
adamc@682	2986 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2987 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	2988 else {
adamc@682	2989 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2990 return ch;
adamc@682	2991 }
adamc@682	2992 }
adamc@682	2993
adamc@682	2994 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2995 char *endptr;
adamc@682	2996 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2997
adamc@678	2998 if (s != '\0' && endptr == '\0')
adamc@678	2999 return n;
adamc@678	3000 else
adam@1444	3001 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	3002 }
adamc@678	3003
adamc@311	3004 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	3005 char *endptr;
adamc@311	3006 uw_Basis_float n = strtod(s, &endptr);
adamc@293	3007
adamc@293	3008 if (s != '\0' && endptr == '\0')
adamc@293	3009 return n;
adamc@293	3010 else
adam@1444	3011 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3012 }
adamc@293	3013
adamc@821	3014 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	3015 if (s[0] == 0)
adamc@821	3016 return 0;
adamc@821	3017 else if (s[1] != 0)
adam@1444	3018 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	3019 else
adamc@821	3020 return s[0];
adamc@821	3021 }
adamc@821	3022
adamc@311	3023 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	3024 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	3025 return uw_Basis_True;
adamc@296	3026 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	3027 return uw_Basis_False;
adamc@293	3028 else
adam@1444	3029 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3030 }
adamc@436	3031
adam@1352	3032 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	3033 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	3034 struct tm stm = {};
adam@1392	3035 stm.tm_isdst = -1;
adam@1352	3036
adam@1352	3037 if (dot) {
adam@1352	3038 *dot = 0;
adam@1352	3039 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	3040 *dot = '.';
adam@1410	3041 char usec[] = "000000";
adam@1410	3042 int len = strlen(dot+1);
adam@1410	3043 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	3044 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	3045 return r;
adam@1352	3046 }
adam@1352	3047 else {
adam@1352	3048 *dot = '.';
adam@1444	3049 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3050 }
adam@1352	3051 }
adam@1352	3052 else {
adam@1352	3053 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3054 uw_Basis_time r = { mktime(&stm) };
adam@1365	3055 return r;
adam@1352	3056 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3057 uw_Basis_time r = { mktime(&stm) };
adam@1365	3058 return r;
adam@1352	3059 } else
adam@1444	3060 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3061 }
adam@1352	3062 }
adam@1352	3063
adamc@436	3064 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	3065 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	3066 struct tm stm = {};
adam@1392	3067 stm.tm_isdst = -1;
adamc@436	3068
adamc@438	3069 if (dot) {
adamc@438	3070 *dot = 0;
adamc@438	3071 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	3072 *dot = '.';
adam@1365	3073 {
adam@1365	3074 uw_Basis_time r = { mktime(&stm) };
adam@1365	3075 return r;
adam@1365	3076 }
adamc@438	3077 }
adamc@438	3078 else {
adamc@438	3079 *dot = '.';
adam@1444	3080 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3081 }
adamc@438	3082 }
adamc@438	3083 else {
adam@2072	3084 if (strptime(s, ctx->app->time_format, &stm) == end) {
adam@2072	3085 uw_Basis_time r = { mktime(&stm) };
adam@2072	3086 return r;
adam@2072	3087 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3088 uw_Basis_time r = { mktime(&stm) };
adam@1365	3089 return r;
adam@1365	3090 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3091 uw_Basis_time r = { mktime(&stm) };
adam@1365	3092 return r;
adam@1632	3093 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3094 uw_Basis_time r = { mktime(&stm) };
adam@1632	3095 return r;
adam@1365	3096 } else
adam@1444	3097 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3098 }
adamc@436	3099 }
adamc@457	3100
adam@1352	3101 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3102 char *end = strchr(s, 0);
adamc@939	3103 struct tm stm = {};
adam@1392	3104 stm.tm_isdst = -1;
adamc@939	3105
adam@1365	3106 if (strptime(s, fmt, &stm) == end) {
adam@1365	3107 uw_Basis_time r = { mktime(&stm) };
adam@1365	3108 return r;
adam@1365	3109 } else
adam@1444	3110 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3111 }
adamc@939	3112
adamc@742	3113 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3114 char *r = ctx->heap.front;
adamc@742	3115 uw_Basis_blob b = {len, r};
adamc@742	3116
adamc@742	3117 uw_check_heap(ctx, len);
adamc@742	3118
adam@1992	3119 if (s[0] == '\\' && s[1] == 'x') {
adam@1992	3120 s += 2;
adam@1992	3121
adam@1992	3122 while (*s) {
adam@1992	3123 int n;
adam@1992	3124 sscanf(s, "%02x", &n);
adam@1992	3125 *r++ = n;
adam@1992	3126 s += 2;
adam@1992	3127 }
adam@1992	3128 } else {
adam@1992	3129 while (*s) {
adam@1992	3130 if (s[0] == '\\') {
adam@1992	3131 if (s[1] == '\\') {
adam@1992	3132 *r++ = '\\';
adam@1992	3133 s += 2;
adam@1992	3134 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adam@1992	3135 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adam@1992	3136 s += 4;
adam@1992	3137 }
adam@1992	3138 else {
adam@1992	3139 *r++ = '\\';
adam@1992	3140 ++s;
adam@1992	3141 }
adam@1992	3142 } else {
adam@1992	3143 *r++ = s[0];
adamc@742	3144 ++s;
adamc@742	3145 }
adamc@742	3146 }
adamc@742	3147 }
adamc@742	3148
adamc@742	3149 b.size = r - ctx->heap.front;
adamc@742	3150 ctx->heap.front = r;
adam@1992	3151
adamc@742	3152 return b;
adamc@742	3153 }
adamc@742	3154
adam@1402	3155 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3156
adamc@463	3157 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3158 int len = strlen(c);
adamc@854	3159 char *p = ctx->outHeaders.start;
adamc@474	3160
adamc@1134	3161 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3162 char *p2;
adamc@474	3163 p += 13;
adamc@474	3164 p2 = strchr(p, '=');
adamc@474	3165
adamc@474	3166 if (p2) {
adamc@474	3167 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3168
adamc@474	3169 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3170 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3171 return NULL;
adamc@1052	3172 else {
adamc@1052	3173 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3174 memcpy(ret, p2+1, sz);
adamc@1052	3175 ret[sz] = 0;
adamc@1052	3176 return ret;
adamc@1052	3177 }
adamc@474	3178 }
adamc@474	3179 }
adamc@474	3180 }
adamc@463	3181
adamc@1134	3182 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3183 char *p2;
adamc@1051	3184
adamc@854	3185 while (1) {
adamc@1051	3186 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3187 if ((p2 = strchr(p, ';'))) {
adamc@1051	3188 size_t n = p2 - (p + len);
adamc@1051	3189 char *r = uw_malloc(ctx, n);
adamc@1051	3190 memcpy(r, p + 1 + len, n-1);
adamc@1051	3191 r[n-1] = 0;
adamc@1051	3192 return r;
adamc@1051	3193 } else
adamc@1051	3194 return p + 1 + len;
adamc@1134	3195 } else if ((p = strchr(p, ';')))
adamc@854	3196 p += 2;
adamc@463	3197 else
adamc@463	3198 return NULL;
adamc@463	3199 }
adamc@463	3200 }
adamc@792	3201
adamc@792	3202 return NULL;
adamc@457	3203 }
adamc@462	3204
adam@1877	3205 static void set_cookie(uw_context ctx) {
adam@1877	3206 if (ctx->usedSig)
adam@1877	3207 ctx->needsResig = 1;
adam@1877	3208 }
adam@1877	3209
adamc@1050	3210 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	3211 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3212 uw_write_header(ctx, c);
adamc@462	3213 uw_write_header(ctx, "=");
adamc@462	3214 uw_write_header(ctx, v);
adamc@466	3215 uw_write_header(ctx, "; path=");
adamc@466	3216 uw_write_header(ctx, prefix);
adamc@1050	3217 if (expires) {
adamc@1050	3218 char formatted[30];
adam@1392	3219 struct tm tm = {};
adam@1392	3220 tm.tm_isdst = -1;
adamc@1050	3221
adam@1365	3222 gmtime_r(&expires->seconds, &tm);
adamc@1050	3223
adamc@1050	3224 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3225
adamc@1050	3226 uw_write_header(ctx, "; expires=");
adamc@1050	3227 uw_write_header(ctx, formatted);
adamc@1050	3228 }
adamc@1050	3229 if (secure)
adamc@1050	3230 uw_write_header(ctx, "; secure");
adamc@462	3231 uw_write_header(ctx, "\r\n");
adam@1877	3232 set_cookie(ctx);
adamc@462	3233
adamc@462	3234 return uw_unit_v;
adamc@462	3235 }
adamc@667	3236
adamc@1050	3237 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3238 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3239 uw_write_header(ctx, c);
adamc@1050	3240 uw_write_header(ctx, "=; path=");
adamc@1050	3241 uw_write_header(ctx, prefix);
adamc@1052	3242 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3243 set_cookie(ctx);
adamc@1050	3244
adamc@1050	3245 return uw_unit_v;
adamc@1050	3246 }
adamc@1050	3247
adamc@1113	3248 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3249
adamc@682	3250 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3251 unsigned i;
adamc@682	3252 delta *d;
adamc@671	3253
adamc@682	3254 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3255 if (ctx->deltas[i].client == client)
adamc@682	3256 return &ctx->deltas[i];
adamc@671	3257
adamc@682	3258 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3259 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3260 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3261
adamc@682	3262 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3263 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3264 }
adamc@671	3265
adamc@682	3266 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3267 d->client = client;
adam@1369	3268 uw_buffer_reset(&d->msgs);
adamc@682	3269 return d;
adamc@671	3270 }
adamc@671	3271
adamc@668	3272 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3273 if (ctx->client == NULL)
adamc@682	3274 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3275
adamc@682	3276 return new_channel(ctx->client);
adamc@668	3277 }
adamc@668	3278
adamc@668	3279 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3280 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3281 size_t len;
adamc@682	3282 int preLen;
adamc@682	3283 char pre[INTS_MAX + 2];
adamc@668	3284
adamc@682	3285 len = strlen(msg);
adamc@682	3286
adamc@682	3287 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3288
adam@1369	3289 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3290 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3291 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3292
adamc@671	3293 return uw_unit_v;
adamc@668	3294 }
adamc@671	3295
adam@1327	3296 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3297 int i;
adamc@1131	3298 cleanup *cl;
adamc@1131	3299
adamc@1131	3300 if (ctx->client)
adamc@1131	3301 release_client(ctx->client);
adamc@1131	3302
adamc@1131	3303 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3304 cl->func(cl->arg);
adamc@1131	3305
adamc@1131	3306 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3307
adamc@1131	3308 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3309 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3310 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3311
adamc@1131	3312 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3313 if (ctx->transactionals[i].free)
adam@1327	3314 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3315
adam@1941	3316 if (ctx->app && ctx->transaction_started) {
adam@1941	3317 ctx->transaction_started = 0;
adam@1941	3318 return ctx->app->db_rollback(ctx);
adam@1941	3319 } else
adam@1941	3320 return 0;
adamc@1131	3321 }
adamc@1131	3322
adam@1956	3323 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	3324 const char uw_begin_html5[] = "<!DOCTYPE html><html>";
adam@1728	3325
adam@1877	3326 extern int uw_hash_blocksize;
adam@1877	3327
adam@1877	3328 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3329
adam@1877	3330 static char find_sig(char haystack) {
adam@1877	3331 int i;
adam@1877	3332 char *s = strstr(haystack, sig_intro);
adam@1877	3333
adam@1877	3334 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3335 return NULL;
phurst@1981	3336
adam@1877	3337 s += sizeof sig_intro - 1;
adam@1877	3338
adam@1877	3339 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3340 if (!isxdigit((int)s[i]))
adam@1877	3341 return NULL;
adam@1877	3342
adam@1877	3343 if (s[i] != '"')
adam@1877	3344 return NULL;
adam@1877	3345
adam@1877	3346 return s;
adam@1877	3347 }
adam@1877	3348
adam@2033	3349 static pthread_mutex_t message_send_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2033	3350
adam@1938	3351 int uw_commit(uw_context ctx) {
adamc@1104	3352 int i;
adam@1877	3353 char *sig;
adamc@1104	3354
adamc@1131	3355 if (uw_has_error(ctx)) {
adam@1327	3356 uw_rollback(ctx, 0);
adam@1938	3357 return 0;
adamc@1131	3358 }
adamc@1131	3359
adamc@1104	3360 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3361 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3362 if (ctx->transactionals[i].commit) {
adamc@1083	3363 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3364 if (uw_has_error(ctx)) {
adam@1327	3365 uw_rollback(ctx, 0);
adam@1938	3366 return 0;
adamc@1131	3367 }
adamc@1131	3368 }
adamc@771	3369
adam@2033	3370 // Here's an important lock to provide the abstraction that all messages from one transaction are sent as an atomic unit.
adam@2033	3371 if (ctx->used_deltas > 0)
adam@2033	3372 pthread_mutex_lock(&message_send_mutex);
adam@2033	3373
adam@2000	3374 if (ctx->transaction_started) {
adam@2000	3375 int code = ctx->app->db_commit(ctx);
adam@2000	3376
adam@2000	3377 if (code) {
adam@2033	3378 if (ctx->used_deltas > 0)
adam@2033	3379 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3380
adam@2000	3381 if (ctx->client)
adam@2000	3382 release_client(ctx->client);
adam@2000	3383
adam@2000	3384 if (code == -1) {
adam@2000	3385 // This case is for a serialization failure, which is not really an "error."
adam@2000	3386 // The transaction will restart, so we should rollback any transactionals
adam@2000	3387 // that triggered above.
adam@2000	3388
adam@2000	3389 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3390 if (ctx->transactionals[i].rollback != NULL)
adam@2000	3391 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2000	3392
adam@2000	3393 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3394 if (ctx->transactionals[i].free)
adam@2000	3395 ctx->transactionals[i].free(ctx->transactionals[i].data, 1);
adam@2000	3396
grrwlf@2030	3397 return 1;
adam@2000	3398 }
adam@2000	3399
adam@2000	3400 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3401 if (ctx->transactionals[i].free)
adam@2000	3402 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3403
adam@2000	3404 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@2000	3405 return 0;
adam@2000	3406 }
adam@2000	3407 }
adam@2000	3408
adamc@1104	3409 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3410 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3411 if (ctx->transactionals[i].commit) {
adamc@1083	3412 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3413 if (uw_has_error(ctx)) {
adam@2033	3414 if (ctx->used_deltas > 0)
adam@2033	3415 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3416
adam@2033	3417 if (ctx->client)
adam@2033	3418 release_client(ctx->client);
adam@2033	3419
adam@2033	3420 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3421 if (ctx->transactionals[i].rollback != NULL)
adam@2033	3422 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2033	3423
adam@2033	3424 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3425 if (ctx->transactionals[i].free)
adam@2033	3426 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3427
adam@1938	3428 return 0;
adamc@1131	3429 }
adamc@1131	3430 }
adamc@1131	3431
adamc@682	3432 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3433 delta *d = &ctx->deltas[i];
adamc@682	3434 client *c = find_client(d->client);
adamc@682	3435
adam@1551	3436 assert (c != NULL);
adam@1551	3437 assert(c->mode == USED);
adamc@682	3438
adam@1447	3439 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3440 }
adamc@682	3441
adam@2033	3442 if (ctx->used_deltas > 0)
adam@2033	3443 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3444
adamc@682	3445 if (ctx->client)
adamc@685	3446 release_client(ctx->client);
adamc@771	3447
adamc@1104	3448 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3449 if (ctx->transactionals[i].free)
adam@1327	3450 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3451
vshabanoff@1726	3452 uw_check(ctx, 1);
vshabanoff@1726	3453 *ctx->page.front = 0;
adam@1413	3454
adam@1956	3455 if (!ctx->returning_indirectly
adam@1956	3456 && (ctx->app->is_html5
adam@1956	3457 ? !strncmp(ctx->page.start, uw_begin_html5, sizeof uw_begin_html5 - 1)
adam@1956	3458 : !strncmp(ctx->page.start, uw_begin_xhtml, sizeof uw_begin_xhtml - 1))) {
adam@1728	3459 char *s;
adam@1728	3460
adam@1728	3461 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1956	3462 s = ctx->page.start + (ctx->app->is_html5 ? sizeof uw_begin_html5 - 1 : sizeof uw_begin_xhtml - 1);
adam@1728	3463 s = strchr(s, '<');
adam@1728	3464 if (s == NULL) {
adam@1728	3465 // Weird. Document has no tags!
adam@1728	3466
adam@1728	3467 uw_write(ctx, "<head></head><body></body>");
adam@1728	3468 uw_check(ctx, 1);
adam@1728	3469 *ctx->page.front = 0;
adam@1728	3470 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3471 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3472
adam@1729	3473 // Any freeform JavaScript to include?
adam@1729	3474 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3475 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3476 size_t lenP = lenH + 40 + len;
adam@1729	3477 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3478
adam@1729	3479 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3480 start += ctx->page.start - oldPage;
adam@1729	3481 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3482 ctx->page.front += lenP;
adam@1729	3483 memcpy(start, ctx->script_header, lenH);
adam@1729	3484 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3485 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3486 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3487 } else {
adam@1729	3488 size_t lenH = strlen(ctx->script_header);
adam@1729	3489 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3490
adam@1729	3491 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3492 start += ctx->page.start - oldPage;
adam@1729	3493 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3494 ctx->page.front += lenH;
adam@1729	3495 memcpy(start, ctx->script_header, lenH);
adam@1729	3496 }
adam@1728	3497 } else {
adam@1728	3498 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3499
adam@1729	3500 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3501 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3502 size_t lenP = lenH + 53 + len;
adam@1729	3503 char start = s, oldPage = ctx->page.start;
adam@1729	3504
adam@1729	3505 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3506 start += ctx->page.start - oldPage;
adam@1729	3507 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3508 ctx->page.front += lenP;
adam@1729	3509 memcpy(start, "<head>", 6);
adam@1729	3510 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3511 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3512 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3513 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3514 } else {
adam@1729	3515 size_t lenH = strlen(ctx->script_header);
adam@1729	3516 size_t lenP = lenH + 13;
adam@1729	3517 char start = s, oldPage = ctx->page.start;
adam@1729	3518
adam@1729	3519 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3520 start += ctx->page.start - oldPage;
adam@1729	3521 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3522 ctx->page.front += lenP;
adam@1729	3523 memcpy(start, "<head>", 6);
adam@1729	3524 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3525 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3526 }
adamc@916	3527 }
adamc@916	3528 }
adam@1877	3529
adam@1877	3530 if (ctx->needsResig) {
adam@1877	3531 sig = find_sig(ctx->page.start);
adam@1877	3532 if (sig) {
adam@1877	3533 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3534
adam@1877	3535 do {
adam@1877	3536 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3537 sig = find_sig(sig);
adam@1877	3538 } while (sig);
adam@1877	3539 }
adam@1877	3540 }
adam@1938	3541
adam@1938	3542 return 0;
adamc@671	3543 }
adamc@671	3544
adamc@683	3545
adamc@1113	3546 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3547
adam@2001	3548 int uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3549 uw_callback_with_retry free) {
adamc@771	3550 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3551 if (ctx->used_transactionals+1 > uw_transactionals_max)
adam@2001	3552 // Exceeded limit on number of transactionals.
adam@2001	3553 return -1;
adamc@1084	3554 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3555 ++ctx->n_transactionals;
adamc@771	3556 }
adamc@771	3557
adamc@771	3558 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3559 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3560 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3561 ctx->transactionals[ctx->used_transactionals++].free = free;
adam@2001	3562
adam@2001	3563 return 0;
adamc@771	3564 }
adamc@771	3565
adamc@683	3566
adamc@683	3567 // "Garbage collection"
adamc@683	3568
adamc@1121	3569 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3570 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3571
adamc@1121	3572 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3573 int r = setjmp(ctx->jmp_buf);
adamc@683	3574
adamc@1121	3575 if (r == 0)
adamc@1121	3576 uw_do_expunge(ctx, cli, data);
adamc@1121	3577 else
adamc@1121	3578 ctx->app->db_rollback(ctx);
adamc@1121	3579
adamc@1121	3580 uw_post_expunge(ctx, data);
adamc@683	3581
adamc@683	3582 return r;
adamc@683	3583 }
adamc@683	3584
adamc@683	3585 void uw_prune_clients(uw_context ctx) {
adamc@683	3586 client c, next, *prev = NULL;
adamc@683	3587 time_t cutoff;
adamc@683	3588
adamc@1094	3589 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3590
adamc@683	3591 pthread_mutex_lock(&clients_mutex);
adam@1707	3592 pruning_thread = pthread_self();
adam@1707	3593 pruning_thread_initialized = 1;
adamc@683	3594
adamc@683	3595 for (c = clients_used; c; c = next) {
adamc@683	3596 next = c->next;
adamc@683	3597 pthread_mutex_lock(&c->lock);
adamc@685	3598 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3599 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3600 if (prev)
adamc@683	3601 prev->next = next;
adamc@683	3602 else
adamc@683	3603 clients_used = next;
adamc@683	3604 while (fk == UNLIMITED_RETRY) {
adam@1941	3605 uw_reset(ctx);
adamc@1121	3606 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3607 if (fk == UNLIMITED_RETRY)
adamc@684	3608 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3609 }
adamc@684	3610 if (fk == SUCCESS)
adamc@684	3611 free_client(c);
adamc@1121	3612 else
adamc@856	3613 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3614 }
adamc@683	3615 else
adamc@683	3616 prev = c;
adamc@683	3617 pthread_mutex_unlock(&c->lock);
adamc@683	3618 }
adamc@683	3619
adamc@683	3620 pthread_mutex_unlock(&clients_mutex);
adamc@683	3621 }
adamc@687	3622
adamc@687	3623 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3624 int r = setjmp(ctx->jmp_buf);
adamc@687	3625
adamc@687	3626 if (r == 0) {
adam@1936	3627 uw_ensure_transaction(ctx);
adamc@1094	3628 ctx->app->initializer(ctx);
adamc@1094	3629 if (ctx->app->db_commit(ctx))
adamc@687	3630 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3631 }
adamc@687	3632
adamc@687	3633 return r;
adamc@687	3634 }
adamc@717	3635
adamc@1065	3636 static int url_bad(uw_Basis_string s) {
adamc@1065	3637 for (; *s; ++s)
adamc@1153	3638 if (!isgraph((int)*s))
adamc@1065	3639 return 1;
adamc@1065	3640
adamc@1065	3641 return 0;
adamc@1065	3642 }
adamc@1065	3643
adamc@717	3644 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3645 if (url_bad(s))
adamc@1065	3646 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3647 if (ctx->app->check_url(s))
adamc@770	3648 return s;
adamc@770	3649 else
adamc@770	3650 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3651 }
adamc@734	3652
adamc@770	3653 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3654 if (url_bad(s))
adamc@1065	3655 return NULL;
adamc@1094	3656 if (ctx->app->check_url(s))
adamc@770	3657 return s;
adamc@770	3658 else
adamc@770	3659 return NULL;
adamc@770	3660 }
adamc@770	3661
adam@1465	3662 static int mime_format(const char *s) {
adamc@770	3663 for (; *s; ++s)
grrwlf@2024	3664 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.' && *s != '+')
adamc@770	3665 return 0;
adamc@770	3666
adamc@770	3667 return 1;
adamc@770	3668 }
adamc@770	3669
adamc@741	3670 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3671 if (!mime_format(s))
adamc@770	3672 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3673
adamc@1094	3674 if (ctx->app->check_mime(s))
adamc@770	3675 return s;
adamc@770	3676 else
adamc@770	3677 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3678 }
adamc@770	3679
adamc@770	3680 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3681 if (!mime_format(s))
adamc@770	3682 return NULL;
adamc@770	3683
adamc@1094	3684 if (ctx->app->check_mime(s))
adamc@770	3685 return s;
adamc@770	3686 else
adamc@770	3687 return NULL;
adamc@741	3688 }
adamc@741	3689
adam@1465	3690 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3691 if (!mime_format(s))
adam@1465	3692 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3693
adam@1465	3694 if (ctx->app->check_requestHeader(s))
adam@1465	3695 return s;
adam@1465	3696 else
adam@1465	3697 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3698 }
adam@1465	3699
adam@1465	3700 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3701 if (!mime_format(s))
adam@1465	3702 return NULL;
adam@1465	3703
adam@1465	3704 if (ctx->app->check_requestHeader(s))
adam@1465	3705 return s;
adam@1465	3706 else
adam@1465	3707 return NULL;
adam@1465	3708 }
adam@1465	3709
adam@1465	3710 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3711 if (!mime_format(s))
adam@1465	3712 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3713
adam@1465	3714 if (ctx->app->check_responseHeader(s))
adam@1465	3715 return s;
adam@1465	3716 else
adam@1465	3717 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3718 }
adam@1465	3719
adam@1799	3720 static int envVar_format(const char *s) {
adam@1799	3721 for (; *s; ++s)
adam@1799	3722 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3723 return 0;
adam@1799	3724
adam@1799	3725 return 1;
adam@1799	3726 }
adam@1799	3727
adam@1465	3728 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3729 if (!envVar_format(s))
adam@1465	3730 return NULL;
adam@1465	3731
adam@1465	3732 if (ctx->app->check_responseHeader(s))
adam@1465	3733 return s;
adam@1465	3734 else
adam@1465	3735 return NULL;
adam@1465	3736 }
adam@1465	3737
adam@1799	3738 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3739 if (!envVar_format(s))
adam@1799	3740 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3741
adam@1799	3742 if (ctx->app->check_envVar(s))
adam@1799	3743 return s;
adam@1799	3744 else
adam@1799	3745 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3746 }
adam@1799	3747
adam@1799	3748 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3749 if (!mime_format(s))
adam@1799	3750 return NULL;
adam@1799	3751
adam@1799	3752 if (ctx->app->check_envVar(s))
adam@1799	3753 return s;
adam@1799	3754 else
adam@1799	3755 return NULL;
adam@1799	3756 }
adam@1799	3757
adam@1465	3758 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3759 return uw_Basis_requestHeader(ctx, name);
adam@1465	3760 }
adam@1465	3761
adam@1465	3762 static int mime_value_format(const char *s) {
adam@1465	3763 for (; *s; ++s)
adam@1465	3764 if (s == '\r' \|\| s == '\n')
adam@1465	3765 return 0;
adam@1465	3766
adam@1465	3767 return 1;
adam@1465	3768 }
adam@1465	3769
adam@1465	3770 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3771 if (!mime_value_format(value))
adam@1465	3772 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3773
adam@1465	3774 uw_write_header(ctx, name);
adam@1465	3775 uw_write_header(ctx, ": ");
adam@1465	3776 uw_write_header(ctx, value);
adam@1465	3777 uw_write_header(ctx, "\r\n");
adam@1465	3778
adam@1465	3779 return uw_unit_v;
adam@1465	3780 }
adam@1465	3781
adam@1799	3782 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1993	3783 if (ctx->get_env)
adam@1993	3784 return ctx->get_env(ctx->get_env_data, name);
adam@1993	3785 else
adam@1994	3786 return getenv(name);
adam@1799	3787 }
adam@1799	3788
adamc@734	3789 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3790 return s ? s : "";
adamc@734	3791 }
adamc@734	3792
adamc@734	3793 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3794 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3795 int i;
phurst@1981	3796
adamc@734	3797 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3798 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3799
adamc@734	3800 return r;
adamc@734	3801 }
adamc@734	3802
adam@1512	3803 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3804 * optimizations that would enable timing attacks. See:
adam@1512	3805 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3806 */
adam@1512	3807 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3808 int i, x = 0, len1 = strlen(s1);
adam@1512	3809
adam@1512	3810 if (len1 != strlen(s2)) return 0;
adam@1512	3811
adam@1512	3812 for (i = 0; i < len1; ++i) {
adam@1512	3813 __asm__ __volatile__ ("");
adam@1512	3814 x \|= s1[i] ^ s2[i];
adam@1512	3815 }
adam@1512	3816
adam@1512	3817 return x == 0;
adam@1512	3818 }
adam@1512	3819
adamc@734	3820 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3821 ctx->usedSig = 1;
adamc@1094	3822 return ctx->app->cookie_sig(ctx);
adamc@734	3823 }
adamc@737	3824
adamc@737	3825 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3826 return f.name;
adamc@737	3827 }
adamc@737	3828
adamc@740	3829 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3830 return f.type;
adamc@740	3831 }
adamc@740	3832
adamc@745	3833 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3834 return b.size;
adamc@745	3835 }
adamc@745	3836
adamc@1119	3837 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3838 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3839
adamc@1119	3840 return b;
adamc@1119	3841 }
adamc@1119	3842
adamc@737	3843 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3844 return f.data;
adamc@737	3845 }
adamc@741	3846
adam@1347	3847 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3848 return pb.type;
adam@1347	3849 }
adam@1347	3850
adam@1347	3851 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3852 return pb.data;
adam@1347	3853 }
adam@1347	3854
adam@1471	3855 static char *old_headers(uw_context ctx) {
adam@1471	3856 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3857 return NULL;
adam@1471	3858 else {
adam@1471	3859 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3860
adam@1471	3861 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3862 return NULL;
adam@1471	3863 else {
adam@1471	3864 s = strchr(s+15, '\n');
adam@1471	3865 if (s == NULL)
adam@1471	3866 return NULL;
adam@1471	3867 else
adam@1471	3868 return uw_strdup(ctx, s+1);
adam@1471	3869 }
adam@1471	3870 }
adam@1471	3871 }
adam@1471	3872
adamc@741	3873 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3874 cleanup *cl;
adamc@741	3875 int len;
adam@1471	3876 char *oldh;
adamc@741	3877
adam@1451	3878 if (!ctx->allowed_to_return_indirectly)
adam@1451	3879 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3880
adamc@1065	3881 ctx->returning_indirectly = 1;
adam@1471	3882 oldh = old_headers(ctx);
adam@1369	3883 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3884 uw_buffer_reset(&ctx->page);
adamc@741	3885
adamc@856	3886 uw_write_header(ctx, on_success);
adamc@856	3887 uw_write_header(ctx, "Content-Type: ");
adamc@741	3888 uw_write_header(ctx, mimeType);
adam@1934	3889 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369	3890 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3891 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3892 ctx->outHeaders.front += len;
adamc@1066	3893 uw_write_header(ctx, "\r\n");
adam@1471	3894 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3895
adam@1369	3896 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3897
adamc@741	3898 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3899 cl->func(cl->arg);
adamc@741	3900
adamc@741	3901 ctx->cleanup_front = ctx->cleanup;
adamc@741	3902
adamc@1065	3903 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3904 }
adamc@1065	3905
adam@2046	3906 void uw_replace_page(uw_context ctx, const char *data, size_t size) {
adam@2046	3907 uw_buffer_reset(&ctx->page);
adam@2046	3908 ctx_uw_buffer_append(ctx, "page", &ctx->page, data, size);
adam@2046	3909 }
adam@2046	3910
adam@1932	3911 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932	3912 cleanup *cl;
adam@1932	3913 int len;
adam@1932	3914 char *oldh;
adam@1932	3915
adam@1932	3916 if (!ctx->allowed_to_return_indirectly)
adam@1932	3917 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932	3918
adam@1932	3919 ctx->returning_indirectly = 1;
adam@1932	3920 oldh = old_headers(ctx);
adam@1932	3921 uw_buffer_reset(&ctx->outHeaders);
adam@1932	3922
adam@1932	3923 uw_write_header(ctx, on_success);
adam@1932	3924 uw_write_header(ctx, "Content-Type: ");
adam@1932	3925 uw_write_header(ctx, mimeType);
adam@1934	3926 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932	3927 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932	3928 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932	3929 ctx->outHeaders.front += len;
adam@1932	3930 uw_write_header(ctx, "\r\n");
adam@1932	3931 if (oldh) uw_write_header(ctx, oldh);
adam@1932	3932
adam@1932	3933 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932	3934 cl->func(cl->arg);
adam@1932	3935
adam@1932	3936 ctx->cleanup_front = ctx->cleanup;
adam@1932	3937
adam@1932	3938 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932	3939 }
adam@1932	3940
adamc@1065	3941 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3942 cleanup *cl;
adamc@1066	3943 char *s;
adam@1471	3944 char *oldh;
adamc@1065	3945
adam@1451	3946 if (!ctx->allowed_to_return_indirectly)
adam@1451	3947 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3948
adamc@1065	3949 ctx->returning_indirectly = 1;
adam@1471	3950 oldh = old_headers(ctx);
adam@1369	3951 uw_buffer_reset(&ctx->page);
adam@1369	3952 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3953 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3954 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3955 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3956
adam@1409	3957 if (on_success[0])
adam@1409	3958 uw_write_header(ctx, on_redirect);
adam@1409	3959 else
adam@1409	3960 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3961 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3962 if (s) {
adamc@1066	3963 char *s2;
adam@1409	3964 if (s[0] == '\n') ++s;
adam@1409	3965 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3966 *s2 = 0;
adamc@1066	3967 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3968 uw_write_header(ctx, s);
adamc@1066	3969 uw_write_header(ctx, "\n");
adamc@1066	3970 }
adamc@1066	3971 }
adamc@1066	3972 }
adamc@1066	3973
adamc@1065	3974 uw_write_header(ctx, "Location: ");
adamc@1065	3975 uw_write_header(ctx, url);
adamc@1065	3976 uw_write_header(ctx, "\r\n\r\n");
adam@1471	3977 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	3978
adamc@1065	3979 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3980 cl->func(cl->arg);
adamc@1065	3981
adamc@1065	3982 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3983
adamc@1065	3984 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3985 }
adamc@874	3986
adamc@874	3987 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	3988 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	3989
adamc@874	3990 for (; *s; ++s) {
adamc@874	3991 if (s[0] == '\'') {
adamc@874	3992 *r++ = '\'';
adamc@874	3993 for (++s; *s; ++s) {
adamc@874	3994 if (s[0] == '\'') {
adamc@874	3995 *r++ = '\'';
adamc@874	3996 break;
adamc@874	3997 } else if (s[0] == '\\') {
adam@1467	3998 *r++ = '\\';
adam@1467	3999 *r++ = s[1];
adam@1467	4000 ++s;
adamc@874	4001 } else
adamc@874	4002 *r++ = s[0];
adamc@874	4003 }
adamc@874	4004 if (*s == 0) break;
adam@1467	4005 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	4006 s += 3;
adamc@874	4007 else
adamc@874	4008 *r++ = s[0];
adamc@874	4009 }
adamc@874	4010
adam@1467	4011 *r = 0;
adam@1467	4012 return ret;
adamc@874	4013 }
adamc@874	4014
adamc@922	4015 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	4016 va_list ap;
adamc@922	4017 size_t len = 1;
adamc@922	4018 char s, r, *s2;
phurst@1981	4019
adamc@922	4020 va_start(ap, ctx);
adamc@922	4021 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4022 len += strlen(s);
adamc@922	4023 va_end(ap);
adamc@922	4024
adamc@922	4025 r = uw_malloc(ctx, len);
adamc@922	4026 va_start(ap, ctx);
adamc@922	4027 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4028 while (*s)
adamc@922	4029 s2++ = s++;
adamc@922	4030 va_end(ap);
adamc@922	4031 *s2 = 0;
adamc@922	4032
adamc@922	4033 return r;
adamc@922	4034 }
adamc@1006	4035
adam@1365	4036 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	4037
adamc@1006	4038 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	4039 uw_Basis_time r = { time(NULL) };
adam@1365	4040 return r;
adamc@1006	4041 }
adamc@1061	4042
adam@1369	4043 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	4044 tm.seconds += n;
adam@1365	4045 return tm;
adamc@1138	4046 }
adamc@1138	4047
adam@1514	4048 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	4049 return difftime(tm2.seconds, tm1.seconds);
adam@1514	4050 }
adam@1514	4051
adam@1685	4052 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	4053 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	4054 }
adam@1685	4055
adam@1685	4056 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	4057 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	4058 }
adam@1685	4059
adam@1514	4060 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	4061 return tm.seconds;
adam@1514	4062 }
adam@1514	4063
phurst@1971	4064 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	4065 struct tm tm = { .tm_year = year - 1900, .tm_mon = month, .tm_mday = day,
adam@2015	4066 .tm_hour = hour, .tm_min = minute, .tm_sec = second,
adam@2015	4067 .tm_isdst = -1 };
phurst@1984	4068 uw_Basis_time r = { timelocal(&tm) };
phurst@1971	4069 return r;
phurst@1971	4070 }
phurst@1971	4071
phurst@1971	4072 uw_Basis_int uw_Basis_datetimeYear(uw_context ctx, uw_Basis_time time) {
phurst@1971	4073 struct tm tm;
phurst@1982	4074 localtime_r(&time.seconds, &tm);
phurst@1971	4075 return tm.tm_year + 1900;
phurst@1971	4076 }
phurst@1971	4077
phurst@1971	4078 uw_Basis_int uw_Basis_datetimeMonth(uw_context ctx, uw_Basis_time time) {
phurst@1971	4079 struct tm tm;
phurst@1982	4080 localtime_r(&time.seconds, &tm);
phurst@1971	4081 return tm.tm_mon;
phurst@1971	4082 }
phurst@1971	4083
phurst@1971	4084 uw_Basis_int uw_Basis_datetimeDay(uw_context ctx, uw_Basis_time time) {
phurst@1971	4085 struct tm tm;
phurst@1982	4086 localtime_r(&time.seconds, &tm);
phurst@1971	4087 return tm.tm_mday;
phurst@1971	4088 }
phurst@1971	4089
phurst@1971	4090 uw_Basis_int uw_Basis_datetimeHour(uw_context ctx, uw_Basis_time time) {
phurst@1971	4091 struct tm tm;
phurst@1982	4092 localtime_r(&time.seconds, &tm);
phurst@1971	4093 return tm.tm_hour;
phurst@1971	4094 }
phurst@1971	4095
phurst@1971	4096 uw_Basis_int uw_Basis_datetimeMinute(uw_context ctx, uw_Basis_time time) {
phurst@1971	4097 struct tm tm;
phurst@1982	4098 localtime_r(&time.seconds, &tm);
phurst@1971	4099 return tm.tm_min;
phurst@1971	4100 }
phurst@1971	4101
phurst@1971	4102 uw_Basis_int uw_Basis_datetimeSecond(uw_context ctx, uw_Basis_time time) {
phurst@1971	4103 struct tm tm;
phurst@1982	4104 localtime_r(&time.seconds, &tm);
phurst@1971	4105 return tm.tm_sec;
phurst@1971	4106 }
phurst@1971	4107
phurst@1973	4108 uw_Basis_int uw_Basis_datetimeDayOfWeek(uw_context ctx, uw_Basis_time time) {
phurst@1973	4109 struct tm tm;
phurst@1982	4110 localtime_r(&time.seconds, &tm);
phurst@1973	4111 return tm.tm_wday;
phurst@1973	4112 }
phurst@1971	4113
phurst@1971	4114
adamc@1061	4115 void uw_get_global(uw_context ctx, char name) {
adamc@1061	4116 int i;
adamc@1061	4117
adamc@1061	4118 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4119 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	4120 return ctx->globals[i].data;
adamc@1061	4121
adamc@1061	4122 return NULL;
adamc@1061	4123 }
adamc@1061	4124
adamc@1113	4125 size_t uw_globals_max = SIZE_MAX;
adamc@1113	4126
adamc@1061	4127 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	4128 int i;
adamc@1061	4129
adamc@1061	4130 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4131 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	4132 if (ctx->globals[i].free)
adamc@1061	4133 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	4134 ctx->globals[i].data = data;
adamc@1061	4135 ctx->globals[i].free = free;
adamc@1061	4136 return;
adamc@1061	4137 }
adamc@1089	4138
adamc@1113	4139 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	4140 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	4141
adamc@1061	4142 ++ctx->n_globals;
adamc@1061	4143 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	4144 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	4145 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	4146 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	4147 }
adamc@1061	4148
adamc@1061	4149 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	4150 return !!isalnum((int)c);
adamc@1061	4151 }
adamc@1061	4152
adamc@1061	4153 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	4154 return !!isalpha((int)c);
adamc@1061	4155 }
adamc@1061	4156
adamc@1061	4157 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	4158 return !!isblank((int)c);
adamc@1061	4159 }
adamc@1061	4160
adamc@1061	4161 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	4162 return !!iscntrl((int)c);
adamc@1061	4163 }
adamc@1061	4164
adamc@1061	4165 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4166 return !!isdigit((int)c);
adamc@1061	4167 }
adamc@1061	4168
adamc@1061	4169 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	4170 return !!isgraph((int)c);
adamc@1061	4171 }
adamc@1061	4172
adamc@1061	4173 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4174 return !!islower((int)c);
adamc@1061	4175 }
adamc@1061	4176
adamc@1061	4177 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	4178 return !!isprint((int)c);
adamc@1061	4179 }
adamc@1061	4180
adamc@1061	4181 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	4182 return !!ispunct((int)c);
adamc@1061	4183 }
adamc@1061	4184
adamc@1061	4185 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	4186 return !!isspace((int)c);
adamc@1061	4187 }
adamc@1063	4188
adamc@1061	4189 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4190 return !!isupper((int)c);
adamc@1061	4191 }
adamc@1061	4192
adamc@1061	4193 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4194 return !!isxdigit((int)c);
adamc@1061	4195 }
adamc@1061	4196
adamc@1061	4197 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4198 return tolower((int)c);
adamc@1061	4199 }
adamc@1061	4200
adamc@1061	4201 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4202 return toupper((int)c);
adamc@1061	4203 }
adamc@1066	4204
adamc@1128	4205 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	4206 return (unsigned char)c;
adamc@1128	4207 }
adamc@1128	4208
adamc@1128	4209 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	4210 return n;
adamc@1128	4211 }
adamc@1128	4212
adamc@1066	4213 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	4214 return ctx->current_url;
adamc@1066	4215 }
adamc@1066	4216
adamc@1066	4217 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	4218 ctx->current_url = s;
adamc@1066	4219 }
adamc@1114	4220
adamc@1114	4221 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	4222 ctx->deadline = n;
adamc@1114	4223 }
adamc@1114	4224
adamc@1114	4225 void uw_check_deadline(uw_context ctx) {
adamc@1114	4226 if (uw_time > ctx->deadline)
adamc@1114	4227 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	4228 }
adamc@1115	4229
adamc@1115	4230 size_t uw_database_max = SIZE_MAX;
adamc@1120	4231
adam@1389	4232 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@2143	4233 if (ctx->loggers->log_debug)
adam@2143	4234 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@2143	4235 else
adam@2143	4236 fprintf(stderr, "%s\n", s);
adam@1389	4237 return 0;
adam@1389	4238 }
adam@1389	4239
adamc@1120	4240 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
grrwlf@1997	4241 if (ctx->loggers->log_debug)
grrwlf@1997	4242 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@1334	4243 else
adam@1334	4244 fprintf(stderr, "%s\n", s);
adamc@1120	4245 return uw_unit_v;
adamc@1120	4246 }
adamc@1250	4247
adamc@1250	4248 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@2104	4249 int r = my_rand();
adam@2104	4250
adam@2104	4251 if (r >= 0)
adam@2104	4252 return r;
adam@1486	4253 else
adam@1486	4254 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	4255 }
adam@1347	4256
adam@1347	4257 void uw_noPostBody(uw_context ctx) {
adam@1347	4258 ctx->hasPostBody = 0;
adam@1347	4259 }
adam@1347	4260
adam@1347	4261 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	4262 ctx->hasPostBody = 1;
adam@1347	4263 ctx->postBody = pb;
adam@1347	4264 }
adam@1347	4265
adam@1347	4266 int uw_hasPostBody(uw_context ctx) {
adam@1347	4267 return ctx->hasPostBody;
adam@1347	4268 }
adam@1347	4269
adam@1386	4270 void uw_isPost(uw_context ctx) {
adam@1386	4271 ctx->isPost = 1;
adam@1386	4272 }
adam@1386	4273
adam@1386	4274 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4275 return ctx->isPost;
adam@1386	4276 }
adam@1386	4277
adam@1485	4278 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4279 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4280 }
adam@1485	4281
adam@1370	4282 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4283 ctx->queryString = s;
adam@1370	4284 }
adam@1370	4285
adam@1370	4286 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4287 return ctx->queryString;
adam@1370	4288 }
adam@1370	4289
adam@1347	4290 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4291 if (ctx->hasPostBody)
adam@1347	4292 return ctx->postBody;
adam@1347	4293 else
adam@1347	4294 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4295 }
adam@1349	4296
adam@1349	4297 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4298 int r = setjmp(ctx->jmp_buf);
adam@1349	4299
adam@1349	4300 if (r == 0) {
adam@1936	4301 uw_ensure_transaction(ctx);
adam@1418	4302
adam@1349	4303 callback(ctx);
adam@1349	4304 }
adam@1349	4305
adam@1349	4306 return r;
adam@1349	4307 }
adam@1360	4308
adam@1360	4309 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4310 char buf[14];
adam@1397	4311 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4312 }
adam@1365	4313
adam@1365	4314 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4315 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	4316 }
adam@1365	4317
adam@1365	4318 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@2034	4319 return !!(t1.seconds < t2.seconds \|\| (t1.seconds == t2.seconds && t1.microseconds < t2.microseconds));
adam@1365	4320 }
adam@1365	4321
adam@1365	4322 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4323 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4324 }
adam@1365	4325
adam@1372	4326 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4327 struct tm stm = {};
adam@1375	4328 char *end = strchr(s, 0);
adam@1449	4329 stm.tm_isdst = -1;
adam@1375	4330
adam@1632	4331 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4332 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4333
kkallio@1448	4334 r->seconds = timegm(&stm);
adam@1373	4335 r->microseconds = 0;
adam@1373	4336
adam@1373	4337 return r;
adam@1374	4338 }
adam@1374	4339 else
adam@1373	4340 return NULL;
adam@1372	4341 }
adam@1407	4342
adam@1407	4343 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4344 int r = setjmp(ctx->jmp_buf);
adam@1407	4345
adam@1407	4346 if (ctx->app->on_error) {
adam@1407	4347 if (r == 0) {
adam@1936	4348 uw_ensure_transaction(ctx);
adam@1407	4349
adam@1409	4350 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4351 if (on_success[0])
adam@1409	4352 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4353 else
adam@1409	4354 uw_write_header(ctx, "Status: ");
adam@1409	4355 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919	4356 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1956	4357 uw_write(ctx, ctx->app->is_html5 ? uw_begin_html5 : uw_begin_xhtml);
adam@1407	4358 ctx->app->on_error(ctx, msg);
adam@1407	4359 uw_write(ctx, "</html>");
adam@1407	4360 }
adam@1407	4361
adam@1407	4362 return r;
adam@1407	4363 } else
adam@1407	4364 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4365 }
adam@1451	4366
adam@1451	4367 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4368 ctx->allowed_to_return_indirectly = 1;
adam@1451	4369 }
adam@1483	4370
adam@1556	4371 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4372 int len;
adam@1703	4373 char *r;
adam@1703	4374
adam@1703	4375 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4376 r = ctx->heap.front;
adam@1703	4377 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4378 ctx->heap.front += len+1;
adam@1703	4379 return r;
adam@1556	4380 }
adam@1571	4381
adam@1571	4382 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4383 return n;
adam@1571	4384 }
adam@1571	4385
adam@1571	4386 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4387 return ceil(n);
adam@1571	4388 }
adam@1571	4389
adam@1571	4390 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4391 return trunc(n);
adam@1571	4392 }
adam@1571	4393
adam@1571	4394 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4395 return round(n);
adam@1571	4396 }
adam@1755	4397
adam@1755	4398 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755	4399 char *p;
adam@1755	4400
adam@1755	4401 for (p = s; *p; ++p) {
adam@1755	4402 char c = *p;
adam@1801	4403 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755	4404 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4405 }
adam@1755	4406
adam@1755	4407 return s;
adam@1755	4408 }
adam@1755	4409
adam@1755	4410 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4411 char *p;
adam@1755	4412
adam@1755	4413 for (p = s; *p; ++p) {
adam@1755	4414 char c = *p;
adam@1801	4415 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4416 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4417 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4418 }
adam@1755	4419
adam@1755	4420 return s;
adam@1755	4421 }
adam@1755	4422
adam@1755	4423 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4424 char *p;
adam@1755	4425
adam@1755	4426 if (!*s)
adam@1755	4427 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4428
adam@1801	4429 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4430 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4431
adam@1755	4432 for (p = s; *p; ++p) {
adam@1755	4433 char c = *p;
adam@1801	4434 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4435 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4436 }
adam@1755	4437
adam@1755	4438 return s;
adam@1755	4439 }
adam@1787	4440
adam@1787	4441 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4442 return f.name;
adam@1787	4443 }
adam@1787	4444
adam@1787	4445 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4446 return f.value;
adam@1787	4447 }
adam@1787	4448
adam@1787	4449 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4450 return f.remaining;
adam@1787	4451 }
adam@1787	4452
adam@1787	4453 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4454 char *unurl;
adam@1787	4455 uw_Basis_postField *f;
adam@1787	4456
adam@1788	4457 if (!ctx->hasPostBody)
adam@1788	4458 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4459
adam@1788	4460 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4461 return NULL;
adam@1787	4462
adam@1787	4463 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4464 unurl = s;
adam@1787	4465 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4466 s = strchr(s, 0);
adam@1788	4467 if (!s)
adam@1788	4468 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4469 ++s;
adam@1788	4470 unurl = s;
adam@1788	4471 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4472 s = strchr(s, 0);
adam@1788	4473 if (!s)
adam@1788	4474 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4475 f->remaining = s+1;
adam@1787	4476
adam@1787	4477 return f;
adam@1787	4478 }
adam@2008	4479
adam@2008	4480 uw_Basis_string uw_Basis_blessData(uw_context ctx, uw_Basis_string s) {
adam@2008	4481 char *p = s;
adam@2008	4482
adam@2008	4483 for (; *p; ++p)
adam@2008	4484 if (!isalnum(p) && p != '-' && *p != '_')
adam@2008	4485 uw_error(ctx, FATAL, "Illegal HTML5 data-* attribute: %s", s);
adam@2008	4486
adam@2008	4487 return s;
adam@2008	4488 }
adam@2073	4489
adam@2073	4490 int uw_remoteSock(uw_context ctx) {
adam@2073	4491 return ctx->remoteSock;
adam@2073	4492 }
adam@2073	4493
adam@2073	4494 void uw_set_remoteSock(uw_context ctx, int sock) {
adam@2073	4495 ctx->remoteSock = sock;
adam@2073	4496 }
ziv@2234	4497
ziv@2234	4498
ziv@2234	4499 // Sqlcache
ziv@2234	4500
ziv@2250	4501 void uw_Sqlcache_listDelete(uw_Sqlcache_CacheList list, uw_Sqlcache_CacheEntry entry) {
ziv@2234	4502 if (list->first == entry) {
ziv@2234	4503 list->first = entry->next;
ziv@2234	4504 }
ziv@2234	4505 if (list->last == entry) {
ziv@2234	4506 list->last = entry->prev;
ziv@2234	4507 }
ziv@2234	4508 if (entry->prev) {
ziv@2234	4509 entry->prev->next = entry->next;
ziv@2234	4510 }
ziv@2234	4511 if (entry->next) {
ziv@2234	4512 entry->next->prev = entry->prev;
ziv@2234	4513 }
ziv@2234	4514 entry->prev = NULL;
ziv@2234	4515 entry->next = NULL;
ziv@2234	4516 --(list->size);
ziv@2234	4517 }
ziv@2234	4518
ziv@2250	4519 void uw_Sqlcache_listAdd(uw_Sqlcache_CacheList list, uw_Sqlcache_CacheEntry entry) {
ziv@2234	4520 if (list->last) {
ziv@2234	4521 list->last->next = entry;
ziv@2234	4522 entry->prev = list->last;
ziv@2234	4523 list->last = entry;
ziv@2234	4524 } else {
ziv@2234	4525 list->first = entry;
ziv@2234	4526 list->last = entry;
ziv@2234	4527 }
ziv@2234	4528 ++(list->size);
ziv@2234	4529 }
ziv@2234	4530
ziv@2250	4531 void uw_Sqlcache_listBump(uw_Sqlcache_CacheList list, uw_Sqlcache_CacheEntry entry) {
ziv@2250	4532 uw_Sqlcache_listDelete(list, entry);
ziv@2250	4533 uw_Sqlcache_listAdd(list, entry);
ziv@2234	4534 }
ziv@2234	4535
ziv@2234	4536 // TODO: deal with time properly.
ziv@2234	4537
ziv@2250	4538 time_t uw_Sqlcache_getTimeNow() {
ziv@2234	4539 return time(NULL);
ziv@2234	4540 }
ziv@2234	4541
ziv@2250	4542 time_t uw_Sqlcache_timeMax(time_t x, time_t y) {
ziv@2234	4543 return difftime(x, y) > 0 ? x : y;
ziv@2234	4544 }
ziv@2234	4545
ziv@2250	4546 void uw_Sqlcache_freeuw_Sqlcache_CacheValue(uw_Sqlcache_CacheValue *value) {
ziv@2234	4547 if (value) {
ziv@2234	4548 free(value->result);
ziv@2234	4549 free(value->output);
ziv@2234	4550 free(value);
ziv@2234	4551 }
ziv@2234	4552 }
ziv@2234	4553
ziv@2250	4554 void uw_Sqlcache_delete(uw_Sqlcache_Cache cache, uw_Sqlcache_CacheEntry entry) {
ziv@2250	4555 //uw_Sqlcache_listUw_Sqlcache_Delete(cache->lru, entry);
ziv@2234	4556 HASH_DELETE(hh, cache->table, entry);
ziv@2250	4557 uw_Sqlcache_freeuw_Sqlcache_CacheValue(entry->value);
ziv@2234	4558 free(entry->key);
ziv@2234	4559 free(entry);
ziv@2234	4560 }
ziv@2234	4561
ziv@2250	4562 uw_Sqlcache_CacheValue uw_Sqlcache_checkHelper(uw_Sqlcache_Cache cache, char **keys, int timeInvalid) {
ziv@2234	4563 char *key = keys[cache->height];
ziv@2250	4564 uw_Sqlcache_CacheEntry *entry;
ziv@2234	4565 HASH_FIND(hh, cache->table, key, strlen(key), entry);
ziv@2250	4566 timeInvalid = uw_Sqlcache_timeMax(timeInvalid, cache->timeInvalid);
ziv@2234	4567 if (entry && difftime(entry->timeValid, timeInvalid) > 0) {
ziv@2234	4568 if (cache->height == 0) {
ziv@2234	4569 // At height 0, entry->value is the desired value.
ziv@2250	4570 //uw_Sqlcache_listBump(cache->lru, entry);
ziv@2234	4571 return entry->value;
ziv@2234	4572 } else {
ziv@2234	4573 // At height n+1, entry->value is a pointer to a cache at heignt n.
ziv@2250	4574 return uw_Sqlcache_checkHelper(entry->value, keys, timeInvalid);
ziv@2234	4575 }
ziv@2234	4576 } else {
ziv@2234	4577 return NULL;
ziv@2234	4578 }
ziv@2234	4579 }
ziv@2234	4580
ziv@2250	4581 uw_Sqlcache_CacheValue uw_Sqlcache_check(uw_Sqlcache_Cache cache, char **keys) {
ziv@2250	4582 return uw_Sqlcache_checkHelper(cache, keys, 0);
ziv@2250	4583 }
ziv@2250	4584
ziv@2250	4585 void uw_Sqlcache_storeHelper(uw_Sqlcache_Cache cache, char keys, uw_Sqlcache_CacheValue value, int timeNow) {
ziv@2250	4586 uw_Sqlcache_CacheEntry *entry;
ziv@2234	4587 char *key = keys[cache->height];
ziv@2234	4588 HASH_FIND(hh, cache->table, key, strlen(key), entry);
ziv@2234	4589 if (!entry) {
ziv@2250	4590 entry = malloc(sizeof(uw_Sqlcache_CacheEntry));
ziv@2234	4591 entry->key = strdup(key);
ziv@2234	4592 entry->value = NULL;
ziv@2234	4593 HASH_ADD_KEYPTR(hh, cache->table, entry->key, strlen(entry->key), entry);
ziv@2234	4594 }
ziv@2234	4595 entry->timeValid = timeNow;
ziv@2234	4596 if (cache->height == 0) {
ziv@2250	4597 //uw_Sqlcache_listAdd(cache->lru, entry);
ziv@2250	4598 uw_Sqlcache_freeuw_Sqlcache_CacheValue(entry->value);
ziv@2234	4599 entry->value = value;
ziv@2234	4600 //if (cache->lru->size > MAX_SIZE) {
ziv@2250	4601 //uw_Sqlcache_delete(cache, cache->lru->first);
ziv@2234	4602 // TODO: return flushed value.
ziv@2234	4603 //}
ziv@2234	4604 } else {
ziv@2234	4605 if (!entry->value) {
ziv@2250	4606 uw_Sqlcache_Cache *newuw_Sqlcache_Cache = malloc(sizeof(uw_Sqlcache_Cache));
ziv@2250	4607 newuw_Sqlcache_Cache->table = NULL;
ziv@2250	4608 newuw_Sqlcache_Cache->timeInvalid = timeNow;
ziv@2250	4609 newuw_Sqlcache_Cache->lru = cache->lru;
ziv@2250	4610 newuw_Sqlcache_Cache->height = cache->height - 1;
ziv@2250	4611 entry->value = newuw_Sqlcache_Cache;
ziv@2234	4612 }
ziv@2250	4613 uw_Sqlcache_storeHelper(entry->value, keys, value, timeNow);
ziv@2234	4614 }
ziv@2234	4615 }
ziv@2234	4616
ziv@2250	4617 void uw_Sqlcache_store(uw_Sqlcache_Cache cache, char keys, uw_Sqlcache_CacheValue value) {
ziv@2250	4618 uw_Sqlcache_storeHelper(cache, keys, value, uw_Sqlcache_getTimeNow());
ziv@2250	4619 }
ziv@2250	4620
ziv@2250	4621 void uw_Sqlcache_flushHelper(uw_Sqlcache_Cache cache, char *keys, int timeNow) {
ziv@2250	4622 uw_Sqlcache_CacheEntry *entry;
ziv@2234	4623 char *key = keys[cache->height];
ziv@2234	4624 if (key) {
ziv@2234	4625 HASH_FIND(hh, cache->table, key, strlen(key), entry);
ziv@2234	4626 if (entry) {
ziv@2234	4627 if (cache->height == 0) {
ziv@2250	4628 uw_Sqlcache_delete(cache, entry);
ziv@2234	4629 } else {
ziv@2250	4630 uw_Sqlcache_flushHelper(entry->value, keys, timeNow);
ziv@2234	4631 }
ziv@2234	4632 }
ziv@2234	4633 } else {
ziv@2234	4634 // Null key means invalidate the entire subtree.
ziv@2234	4635 cache->timeInvalid = timeNow;
ziv@2234	4636 }
ziv@2234	4637 }
ziv@2234	4638
ziv@2250	4639 void uw_Sqlcache_flush(uw_Sqlcache_Cache cache, char *keys) {
ziv@2250	4640 uw_Sqlcache_flushHelper(cache, keys, uw_Sqlcache_getTimeNow());
ziv@2250	4641 }

Mercurial > urweb

annotate src/c/urweb.c @ 2250:c275bbc41194