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

annotate src/c/urweb.c @ 2284:472b4504aef2

Actually use transactional machinery for flushes this time.

author	Ziv Scully <ziv@mit.edu>
date	Thu, 12 Nov 2015 11:44:21 -0500
parents	4afaab523213
children	ad3ce1528f71

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;
ziv@2262	75 if (b->front != b->back) {
ziv@2262	76 *b->front = 0;
ziv@2262	77 }
adamc@667	78 }
adamc@667	79
adam@1369	80 int uw_buffer_check(uw_buffer *b, size_t extra) {
adamc@667	81 if (b->back - b->front < extra) {
adamc@667	82 size_t desired = b->front - b->start + extra, next;
adamc@667	83 char *new_heap;
adamc@667	84
adamc@667	85 next = b->back - b->start;
adamc@667	86 if (next == 0)
adamc@667	87 next = 1;
adamc@667	88 for (; next < desired; next *= 2);
adamc@667	89
adamc@1134	90 if (next > b->max) {
adamc@1113	91 if (desired <= b->max)
adamc@1113	92 next = desired;
adamc@1113	93 else
adamc@1113	94 return 1;
adamc@1134	95 }
adamc@1113	96
adamc@667	97 new_heap = realloc(b->start, next);
adamc@667	98 b->front = new_heap + (b->front - b->start);
adamc@667	99 b->back = new_heap + next;
adamc@667	100 b->start = new_heap;
adamc@667	101 }
adamc@1113	102
adamc@1113	103 return 0;
adamc@1113	104 }
adamc@1113	105
adamc@1113	106 __attribute__((noreturn)) void uw_error(uw_context, failure_kind, const char *, ...);
adamc@1113	107
adam@1369	108 static void ctx_uw_buffer_check(uw_context ctx, const char kind, uw_buffer b, size_t extra) {
adam@1369	109 if (uw_buffer_check(b, extra))
adamc@1113	110 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@667	111 }
adamc@667	112
adam@1369	113 size_t uw_buffer_used(uw_buffer *b) {
adamc@667	114 return b->front - b->start;
adamc@667	115 }
adamc@667	116
adam@1369	117 size_t uw_buffer_avail(uw_buffer *b) {
adamc@667	118 return b->back - b->start;
adamc@667	119 }
adamc@667	120
adam@1369	121 int uw_buffer_append(uw_buffer b, const char s, size_t len) {
adam@1369	122 if (uw_buffer_check(b, len+1))
adamc@1113	123 return 1;
adamc@1113	124
adamc@1113	125 memcpy(b->front, s, len);
adamc@1113	126 b->front += len;
adamc@1113	127 *b->front = 0;
adamc@1113	128
adamc@1113	129 return 0;
adamc@1113	130 }
adamc@1113	131
adam@1369	132 static void ctx_uw_buffer_append(uw_context ctx, const char kind, uw_buffer b, const char *s, size_t len) {
adam@1369	133 ctx_uw_buffer_check(ctx, kind, b, len+1);
adamc@1113	134
adamc@668	135 memcpy(b->front, s, len);
adamc@668	136 b->front += len;
adamc@672	137 *b->front = 0;
adamc@668	138 }
adamc@667	139
adamc@668	140
adamc@672	141 // Persistent state types
adamc@667	142
adamc@667	143 typedef enum { UNUSED, USED } usage;
adamc@667	144
adamc@667	145 typedef struct client {
adamc@682	146 unsigned id;
adamc@667	147 usage mode;
adamc@682	148 int pass;
adamc@682	149 struct client *next;
adamc@689	150 pthread_mutex_t lock, pull_lock;
adam@1369	151 uw_buffer msgs;
adamc@682	152 int sock;
adamc@863	153 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	154 int (*close)(int fd);
adamc@682	155 time_t last_contact;
adamc@682	156 unsigned n_channels;
adamc@685	157 unsigned refcount;
adamc@1121	158 void *data;
adamc@667	159 } client;
adamc@667	160
adamc@672	161
adamc@672	162 // Persistent client state
adamc@672	163
adamc@682	164 static client *clients, clients_free, *clients_used;
adamc@682	165 static unsigned n_clients;
adamc@667	166
adam@1707	167 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@1113	168 size_t uw_messages_max = SIZE_MAX;
adamc@1113	169 size_t uw_clients_max = SIZE_MAX;
adamc@1113	170
adamc@1121	171 void *uw_init_client_data();
adamc@1121	172 void uw_free_client_data(void *);
adamc@1121	173 void uw_copy_client_data(void dst, void src);
adamc@1121	174
adam@2104	175 static uw_Basis_int my_rand() {
adam@2105	176 int ret, r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@2104	177 if (r)
adam@2105	178 return abs(ret);
adam@2104	179 else
adam@2104	180 return -1;
adam@2104	181 }
adam@2104	182
adamc@682	183 static client *new_client() {
adamc@667	184 client *c;
adamc@667	185
adamc@667	186 pthread_mutex_lock(&clients_mutex);
adamc@667	187
adamc@667	188 if (clients_free) {
adamc@667	189 c = clients_free;
adamc@682	190 clients_free = clients_free->next;
adamc@667	191 }
adam@1672	192 else if (n_clients >= uw_clients_max) {
adam@1672	193 pthread_mutex_unlock(&clients_mutex);
adamc@1113	194 return NULL;
adam@1672	195 } else {
adamc@667	196 ++n_clients;
adamc@667	197 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	198 c = malloc(sizeof(client));
adamc@667	199 c->id = n_clients-1;
adamc@682	200 pthread_mutex_init(&c->lock, NULL);
adamc@689	201 pthread_mutex_init(&c->pull_lock, NULL);
adam@1369	202 uw_buffer_init(uw_messages_max, &c->msgs, 0);
adamc@667	203 clients[n_clients-1] = c;
adamc@667	204 }
adamc@667	205
adamc@682	206 pthread_mutex_lock(&c->lock);
adamc@667	207 c->mode = USED;
adam@2104	208 c->pass = my_rand();
adamc@682	209 c->sock = -1;
adamc@682	210 c->last_contact = time(NULL);
adam@1369	211 uw_buffer_reset(&c->msgs);
adamc@682	212 c->n_channels = 0;
adamc@685	213 c->refcount = 0;
adamc@1121	214 c->data = uw_init_client_data();
adamc@682	215 pthread_mutex_unlock(&c->lock);
adamc@682	216
adamc@682	217 c->next = clients_used;
adamc@682	218 clients_used = c;
adamc@667	219
adamc@667	220 pthread_mutex_unlock(&clients_mutex);
adamc@667	221
adamc@667	222 return c;
adamc@667	223 }
adamc@667	224
adamc@685	225 static void use_client(client *c) {
adamc@685	226 pthread_mutex_lock(&c->lock);
adamc@685	227 ++c->refcount;
adamc@685	228 pthread_mutex_unlock(&c->lock);
adamc@689	229 pthread_mutex_lock(&c->pull_lock);
adamc@685	230 }
adamc@685	231
adamc@685	232 static void release_client(client *c) {
adamc@689	233 pthread_mutex_unlock(&c->pull_lock);
adamc@685	234 pthread_mutex_lock(&c->lock);
adamc@685	235 --c->refcount;
adamc@685	236 pthread_mutex_unlock(&c->lock);
adamc@685	237 }
adamc@685	238
adamc@856	239 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adam@1707	240 static pthread_t pruning_thread;
adam@1707	241 static int pruning_thread_initialized = 0;
adamc@667	242
adamc@682	243 static client *find_client(unsigned id) {
adamc@667	244 client *c;
adam@1708	245 int i_am_pruner = pruning_thread_initialized && pthread_equal(pruning_thread, pthread_self());
adam@1708	246
adam@1708	247 if (!i_am_pruner) pthread_mutex_lock(&clients_mutex);
adamc@667	248
adamc@667	249 if (id >= n_clients) {
adam@1708	250 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	251 return NULL;
adamc@667	252 }
adamc@667	253
adamc@667	254 c = clients[id];
adamc@667	255
adam@1708	256 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	257 return c;
adamc@668	258 }
adamc@668	259
adamc@856	260 static char *on_success = "HTTP/1.1 200 OK\r\n";
adam@1409	261 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	262
adamc@856	263 void uw_set_on_success(char *s) {
adamc@856	264 on_success = s;
adamc@856	265 }
adamc@856	266
adam@1552	267 static void chastise(int (send)(int sockfd, const void buf, ssize_t len), int sock) {
adam@1552	268 send(sock, on_success, strlen(on_success));
adam@1552	269 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1552	270 send(sock, "R", 1);
adam@1552	271 close(sock);
adam@1552	272 }
adam@1552	273
adamc@863	274 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	275 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	276 int (*close)(int fd),
adamc@864	277 void *logger_data, uw_logger log_error) {
adamc@682	278 client *c = find_client(id);
adamc@668	279
adamc@668	280 if (c == NULL) {
adam@1552	281 chastise(send, sock);
adamc@864	282 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	283 return;
adamc@667	284 }
adamc@667	285
adamc@682	286 pthread_mutex_lock(&c->lock);
adamc@671	287
adamc@682	288 if (c->mode != USED) {
adamc@682	289 pthread_mutex_unlock(&c->lock);
adam@1552	290 chastise(send, sock);
adamc@864	291 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	292 return;
adamc@667	293 }
adamc@667	294
adamc@682	295 if (pass != c->pass) {
adamc@682	296 pthread_mutex_unlock(&c->lock);
adam@1552	297 chastise(send, sock);
adamc@864	298 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	299 return;
adamc@667	300 }
adamc@667	301
adamc@682	302 if (c->sock != -1) {
adamc@863	303 c->close(c->sock);
adamc@682	304 c->sock = -1;
adamc@682	305 }
adamc@667	306
adamc@682	307 c->last_contact = time(NULL);
adamc@682	308
adam@1369	309 if (uw_buffer_used(&c->msgs) > 0) {
adamc@863	310 send(sock, on_success, strlen(on_success));
adamc@863	311 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1369	312 send(sock, c->msgs.start, uw_buffer_used(&c->msgs));
adam@1369	313 uw_buffer_reset(&c->msgs);
adamc@667	314 close(sock);
adamc@667	315 }
adamc@863	316 else {
adamc@682	317 c->sock = sock;
adamc@863	318 c->send = send;
adamc@863	319 c->close = close;
adamc@863	320 }
adamc@667	321
adamc@682	322 pthread_mutex_unlock(&c->lock);
adamc@667	323 }
adamc@667	324
adamc@682	325 static void free_client(client *c) {
adamc@682	326 c->mode = UNUSED;
adamc@682	327 c->pass = -1;
adamc@667	328
adamc@682	329 c->next = clients_free;
adamc@682	330 clients_free = c;
adamc@667	331 }
adamc@667	332
adamc@682	333 static uw_Basis_channel new_channel(client *c) {
adamc@682	334 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	335 return ch;
adamc@668	336 }
adamc@668	337
adam@1447	338 static void client_send(client c, uw_buffer msg, const char *script, int script_len) {
adamc@685	339 pthread_mutex_lock(&c->lock);
adamc@671	340
adamc@682	341 if (c->sock != -1) {
adamc@863	342 c->send(c->sock, on_success, strlen(on_success));
adamc@863	343 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1447	344 if (script_len > 0) {
adam@1447	345 c->send(c->sock, "E\n", 2);
adam@1447	346 c->send(c->sock, script, script_len);
adam@1447	347 c->send(c->sock, "\n", 1);
adam@1447	348 }
adam@1369	349 c->send(c->sock, msg->start, uw_buffer_used(msg));
adamc@863	350 c->close(c->sock);
adamc@682	351 c->sock = -1;
adam@1665	352 } else if (uw_buffer_append(&c->msgs, msg->start, uw_buffer_used(msg)))
adamc@1113	353 fprintf(stderr, "Client message buffer size exceeded");
adamc@671	354
adamc@685	355 pthread_mutex_unlock(&c->lock);
adamc@668	356 }
adamc@668	357
adamc@668	358
adamc@668	359 // Global entry points
adamc@668	360
adamc@1164	361 extern void uw_global_custom();
adamc@1104	362 extern void uw_init_crypto();
adamc@1104	363
adamc@668	364 void uw_global_init() {
adamc@668	365 clients = malloc(0);
adamc@1104	366
adamc@1164	367 uw_global_custom();
adamc@1104	368 uw_init_crypto();
adamc@1094	369 }
adamc@1094	370
adamc@1094	371 void uw_app_init(uw_app *app) {
adamc@1094	372 app->client_init();
adamc@668	373 }
adamc@668	374
adam@1332	375 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114	376
adamc@668	377
adamc@667	378 // Single-request state
adamc@667	379
adamc@323	380 typedef struct regions {
adamc@323	381 struct regions *next;
adamc@323	382 } regions;
adamc@323	383
adamc@425	384 typedef struct {
adamc@425	385 void (func)(void);
adamc@425	386 void *arg;
adamc@425	387 } cleanup;
adamc@425	388
adamc@671	389 typedef struct {
adamc@682	390 unsigned client;
adam@1369	391 uw_buffer msgs;
adamc@682	392 } delta;
adamc@671	393
adamc@737	394 typedef enum {
adamc@759	395 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	396 } input_kind;
adamc@737	397
adamc@756	398 typedef struct input {
adamc@737	399 input_kind kind;
adamc@737	400 union {
adamc@737	401 char *normal;
adamc@739	402 uw_Basis_file file;
adamc@756	403 struct {
adamc@759	404 struct input fields, parent;
adamc@756	405 } subform;
adamc@759	406 struct {
adamc@759	407 struct input entries, parent;
adamc@759	408 } subforms;
adamc@759	409 struct {
adamc@759	410 struct input fields, next, *parent;
adamc@759	411 } entry;
adamc@737	412 } data;
adamc@737	413 } input;
adamc@737	414
adamc@771	415 typedef struct {
adamc@771	416 void *data;
adam@1327	417 uw_callback commit, rollback;
adam@1327	418 uw_callback_with_retry free;
adamc@771	419 } transactional;
adamc@771	420
adamc@1061	421 typedef struct {
adamc@1061	422 char *name;
adamc@1061	423 void *data;
adamc@1061	424 void (free)(void);
adamc@1061	425 } global;
adamc@1061	426
ziv@2282	427 typedef struct uw_Sqlcache_Inval {
ziv@2282	428 uw_Sqlcache_Cache *cache;
ziv@2282	429 char **keys;
ziv@2282	430 struct uw_Sqlcache_Inval *next;
ziv@2282	431 } uw_Sqlcache_Inval;
ziv@2282	432
adamc@311	433 struct uw_context {
adamc@1094	434 uw_app *app;
adam@1446	435 int id;
adamc@1094	436
adamc@854	437 char (get_header)(void , const char );
adamc@854	438 void *get_header_data;
adamc@457	439
adam@1799	440 char (get_env)(void , const char );
adam@1799	441 void *get_env_data;
adam@1799	442
adam@1369	443 uw_buffer outHeaders, page, heap, script;
adam@1451	444 int allowed_to_return_indirectly, returning_indirectly;
adamc@759	445 input inputs, subinputs, *cur_container;
adamc@1094	446 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	447
adam@1446	448 unsigned long long source_count;
adamc@562	449
adamc@272	450 void *db;
adam@1931	451 int transaction_started;
adamc@272	452
adamc@167	453 jmp_buf jmp_buf;
adamc@167	454
adamc@323	455 regions *regions;
adamc@323	456
adamc@425	457 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	458
adamc@1094	459 const char *script_header;
adamc@643	460
adam@2056	461 int needs_push, needs_sig, could_write_db, at_most_one_query;
adamc@693	462
adamc@682	463 size_t n_deltas, used_deltas;
adamc@682	464 delta *deltas;
adamc@671	465
adamc@682	466 client *client;
adamc@682	467
adamc@771	468 transactional *transactionals;
adamc@771	469 size_t n_transactionals, used_transactionals;
adamc@771	470
adamc@1061	471 global *globals;
adamc@1061	472 size_t n_globals;
adamc@1061	473
adamc@1066	474 char *current_url;
adamc@1066	475
adamc@1114	476 int deadline;
adamc@1114	477
adamc@1121	478 void *client_data;
adamc@1121	479
grrwlf@1997	480 uw_loggers *loggers;
adam@1334	481
adam@1386	482 int isPost, hasPostBody;
adam@1347	483 uw_Basis_postBody postBody;
adam@1370	484 uw_Basis_string queryString;
adam@1347	485
adam@1556	486 unsigned nextId;
adam@1556	487
adam@1782	488 int amInitializing;
adam@1782	489
adamc@167	490 char error_message[ERROR_BUF_LEN];
adam@1877	491
adam@1877	492 int usedSig, needsResig;
adam@1949	493
adam@1949	494 char *output_buffer;
adam@1949	495 size_t output_buffer_size;
adam@2073	496
ziv@2281	497 // Sqlcache.
ziv@2262	498 int numRecording;
ziv@2262	499 int recordingOffset;
ziv@2282	500 uw_Sqlcache_Inval *inval;
ziv@2220	501
adam@2073	502 int remoteSock;
adamc@117	503 };
adamc@117	504
adamc@1113	505 size_t uw_headers_max = SIZE_MAX;
adamc@1113	506 size_t uw_page_max = SIZE_MAX;
adamc@1113	507 size_t uw_heap_max = SIZE_MAX;
adamc@1113	508 size_t uw_script_max = SIZE_MAX;
adamc@1113	509
grrwlf@1997	510 uw_context uw_init(int id, uw_loggers *lg) {
adamc@311	511 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	512
adamc@1094	513 ctx->app = NULL;
adam@1446	514 ctx->id = id;
adamc@1094	515
adamc@854	516 ctx->get_header = NULL;
adamc@854	517 ctx->get_header_data = NULL;
adamc@457	518
adam@1799	519 ctx->get_env = NULL;
adam@1799	520 ctx->get_env_data = NULL;
adam@1799	521
adam@1413	522 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413	523 ctx->outHeaders.start[0] = 0;
adam@1413	524 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413	525 ctx->page.start[0] = 0;
adam@1451	526 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	527 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369	528 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667	529 ctx->script.start[0] = 0;
adamc@136	530
adamc@1094	531 ctx->inputs = malloc(0);
adamc@759	532 ctx->cur_container = NULL;
adamc@756	533 ctx->subinputs = malloc(0);
adamc@1094	534 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	535
adamc@272	536 ctx->db = NULL;
adam@1931	537 ctx->transaction_started = 0;
adamc@272	538
adamc@323	539 ctx->regions = NULL;
adamc@323	540
adamc@425	541 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	542
adamc@643	543 ctx->script_header = "";
adamc@693	544 ctx->needs_push = 0;
adamc@736	545 ctx->needs_sig = 0;
adam@1936	546 ctx->could_write_db = 1;
adam@2056	547 ctx->at_most_one_query = 0;
adamc@1104	548
adamc@565	549 ctx->source_count = 0;
adamc@562	550
adamc@682	551 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	552 ctx->deltas = malloc(0);
adamc@671	553
adamc@700	554 ctx->client = NULL;
adamc@700	555
adamc@700	556 ctx->error_message[0] = 0;
adamc@700	557
adamc@771	558 ctx->transactionals = malloc(0);
adamc@771	559 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	560
adamc@1061	561 ctx->globals = malloc(0);
adamc@1061	562 ctx->n_globals = 0;
adamc@1061	563
adamc@1066	564 ctx->current_url = "";
adamc@1066	565
adamc@1114	566 ctx->deadline = INT_MAX;
adamc@1114	567
adamc@1121	568 ctx->client_data = uw_init_client_data();
adamc@1121	569
grrwlf@1997	570 ctx->loggers = lg;
adam@1334	571
adam@1386	572 ctx->isPost = ctx->hasPostBody = 0;
adam@1347	573
adam@1370	574 ctx->queryString = NULL;
adam@1370	575
adam@1556	576 ctx->nextId = 0;
adam@1556	577
adam@1782	578 ctx->amInitializing = 0;
adam@1782	579
adam@1877	580 ctx->usedSig = 0;
adam@1877	581 ctx->needsResig = 0;
adam@1877	582
adam@1949	583 ctx->output_buffer = malloc(1);
adam@1949	584 ctx->output_buffer_size = 1;
adam@1949	585
ziv@2262	586 ctx->numRecording = 0;
ziv@2262	587 ctx->recordingOffset = 0;
ziv@2283	588 ctx->inval = NULL;
ziv@2204	589
adam@2073	590 ctx->remoteSock = -1;
adam@2073	591
adamc@117	592 return ctx;
adamc@106	593 }
adamc@106	594
adamc@1113	595 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	596
adamc@1121	597 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	598 return ctx->app;
adamc@1121	599 }
adamc@1121	600
adamc@1113	601 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	602 ctx->app = app;
adamc@1094	603
adamc@1105	604 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	605 if (app->inputs_len > uw_inputs_max)
adamc@1113	606 return 1;
adamc@1113	607
adamc@1094	608 ctx->sz_inputs = app->inputs_len;
adamc@1094	609 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	610 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	611 }
adamc@1134	612
adamc@1134	613 return 0;
adamc@1094	614 }
adamc@1094	615
adamc@1121	616 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	617 uw_copy_client_data(ctx->client_data, data);
adamc@1121	618 }
adamc@1121	619
adamc@311	620 void uw_set_db(uw_context ctx, void *db) {
adamc@272	621 ctx->db = db;
adamc@272	622 }
adamc@272	623
adamc@311	624 void *uw_get_db(uw_context ctx) {
adamc@272	625 return ctx->db;
adamc@272	626 }
adamc@272	627
grrwlf@1997	628
grrwlf@1997	629 uw_loggers* uw_get_loggers(struct uw_context *ctx) {
grrwlf@1997	630 return ctx->loggers;
grrwlf@1997	631 }
grrwlf@1997	632
adamc@311	633 void uw_free(uw_context ctx) {
adamc@671	634 size_t i;
adamc@671	635
adam@1369	636 uw_buffer_free(&ctx->outHeaders);
adam@1369	637 uw_buffer_free(&ctx->script);
adam@1369	638 uw_buffer_free(&ctx->page);
adam@1369	639 uw_buffer_free(&ctx->heap);
adamc@144	640 free(ctx->inputs);
adamc@756	641 free(ctx->subinputs);
adamc@425	642 free(ctx->cleanup);
adamc@771	643 free(ctx->transactionals);
adamc@1121	644 uw_free_client_data(ctx->client_data);
adamc@671	645
adamc@682	646 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	647 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	648 free(ctx->deltas);
adamc@671	649
adamc@1061	650 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	651 if (ctx->globals[i].free)
adamc@1089	652 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	653 free(ctx->globals);
adamc@1061	654
adam@1949	655 free(ctx->output_buffer);
adam@1949	656
adamc@136	657 free(ctx);
adamc@136	658 }
adamc@136	659
adamc@562	660 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	661 uw_buffer_reset(&ctx->outHeaders);
adam@1369	662 uw_buffer_reset(&ctx->script);
adamc@667	663 ctx->script.start[0] = 0;
adam@1369	664 uw_buffer_reset(&ctx->page);
adam@1451	665 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	666 uw_buffer_reset(&ctx->heap);
adamc@323	667 ctx->regions = NULL;
adamc@425	668 ctx->cleanup_front = ctx->cleanup;
adamc@682	669 ctx->used_deltas = 0;
adamc@682	670 ctx->client = NULL;
adamc@759	671 ctx->cur_container = NULL;
adamc@771	672 ctx->used_transactionals = 0;
adamc@1117	673 ctx->script_header = "";
adam@1370	674 ctx->queryString = NULL;
adam@1556	675 ctx->nextId = 0;
adam@1782	676 ctx->amInitializing = 0;
adam@1877	677 ctx->usedSig = 0;
adam@1877	678 ctx->needsResig = 0;
adam@2073	679 ctx->remoteSock = -1;
adamc@167	680 }
adamc@167	681
adamc@562	682 void uw_reset_keep_request(uw_context ctx) {
adamc@562	683 uw_reset_keep_error_message(ctx);
adamc@562	684 ctx->error_message[0] = 0;
adamc@167	685 }
adamc@167	686
adamc@311	687 void uw_reset(uw_context ctx) {
adamc@311	688 uw_reset_keep_request(ctx);
adamc@1105	689 if (ctx->app)
adamc@1105	690 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	691 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461	692 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adam@1943	693 ctx->transaction_started = 0;
adamc@144	694 }
adamc@144	695
adamc@311	696 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	697 int r = setjmp(ctx->jmp_buf);
adamc@272	698
adamc@1105	699 if (r == 0 && ctx->app)
adamc@1094	700 ctx->app->db_init(ctx);
adamc@272	701
adamc@272	702 return r;
adamc@272	703 }
adamc@272	704
adamc@1118	705 void uw_close(uw_context ctx) {
adamc@1118	706 ctx->app->db_close(ctx);
adamc@1118	707 }
adamc@1118	708
adam@1446	709 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	710 return ctx->get_header(ctx->get_header_data, h);
adam@1446	711 }
adam@1446	712
adamc@854	713 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	714 ctx->get_header = get_header;
adamc@854	715 ctx->get_header_data = get_header_data;
adamc@742	716 }
adamc@742	717
adam@1799	718 void uw_set_env(uw_context ctx, char (get_env)(void , const char ), void *get_env_data) {
adam@1799	719 ctx->get_env = get_env;
adam@1799	720 ctx->get_env_data = get_env_data;
adam@1799	721 }
adam@1799	722
adamc@801	723 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	724 va_list ap;
adamc@801	725 va_start(ap, fmt);
adamc@801	726
adamc@801	727 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	728 }
adamc@801	729
adamc@1131	730 int uw_has_error(uw_context ctx) {
adamc@1131	731 return ctx->error_message[0] != 0;
adamc@1131	732 }
adamc@1131	733
adamc@311	734 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	735 cleanup *cl;
adamc@425	736
adamc@167	737 va_list ap;
adamc@167	738 va_start(ap, fmt);
adamc@167	739
adamc@167	740 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	741
adamc@425	742 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	743 cl->func(cl->arg);
adamc@425	744
adamc@425	745 ctx->cleanup_front = ctx->cleanup;
adamc@425	746
adamc@190	747 longjmp(ctx->jmp_buf, fk);
adamc@167	748 }
adamc@167	749
adamc@1113	750 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	751
adamc@425	752 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	753 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	754 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	755 if (len == 0)
adamc@425	756 newLen = 1;
adamc@425	757 else
adamc@428	758 newLen = len * 2;
adamc@1113	759
adamc@1134	760 if (newLen > uw_cleanup_max) {
adamc@1113	761 if (len+1 <= uw_cleanup_max)
adamc@1113	762 newLen = uw_cleanup_max;
adamc@1113	763 else
adamc@1113	764 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	765 }
adamc@1113	766
adamc@470	767 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	768 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	769 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	770 }
adamc@425	771
adamc@425	772 ctx->cleanup_front->func = func;
adamc@425	773 ctx->cleanup_front->arg = arg;
adamc@425	774 ++ctx->cleanup_front;
adamc@425	775 }
adamc@425	776
adam@1444	777 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	778
adamc@682	779 void uw_login(uw_context ctx) {
adam@1942	780 char id_s, pass_s;
adam@1942	781
adam@1942	782 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adam@1942	783 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adam@1942	784 unsigned id = atoi(id_s);
adam@1942	785 int pass = atoi(pass_s);
adam@1942	786 client *c = find_client(id);
adam@1942	787
adam@1942	788 if (c == NULL)
adam@1942	789 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	790 else {
adamc@685	791 use_client(c);
adamc@682	792 ctx->client = c;
adam@1942	793
adam@1942	794 if (c->mode != USED)
adam@1942	795 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adam@1942	796 if (c->pass != pass)
adam@1942	797 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@864	798 }
adam@1942	799 } else if (ctx->needs_push) {
adam@1942	800 client *c = new_client();
adam@1942	801
adam@1942	802 if (c == NULL)
adam@1942	803 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adam@1942	804
adam@1942	805 use_client(c);
adam@1942	806 uw_copy_client_data(c->data, ctx->client_data);
adam@1942	807 ctx->client = c;
adamc@682	808 }
adamc@682	809 }
adamc@682	810
adamc@671	811 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	812 int r = setjmp(ctx->jmp_buf);
adamc@671	813
adam@1931	814 if (r == 0)
adam@1931	815 ctx->app->handle(ctx, path);
adam@1931	816
adam@1931	817 return r;
adam@1931	818 }
adam@1931	819
adam@2176	820 static void uw_try_reconnecting(uw_context ctx) {
adam@2176	821 // Hm, error starting transaction.
adam@2176	822 // Maybe the database server died but has since come back up.
adam@2176	823 // Let's try starting from scratch.
adam@2176	824 if (ctx->db) {
adam@2176	825 ctx->app->db_close(ctx);
adam@2176	826 ctx->db = NULL;
adam@2176	827 }
adam@2176	828 ctx->app->db_init(ctx);
adam@2176	829 }
adam@2176	830
adam@2177	831 void uw_try_reconnecting_and_restarting(uw_context ctx) {
adam@2177	832 uw_try_reconnecting(ctx);
adam@2178	833 uw_error(ctx, BOUNDED_RETRY, "Restarting transaction after fixing database connection");
adam@2176	834 }
adam@2176	835
adam@1931	836 void uw_ensure_transaction(uw_context ctx) {
adam@2056	837 if (!ctx->transaction_started && !ctx->at_most_one_query) {
adam@2176	838 if (!ctx->db \|\| ctx->app->db_begin(ctx, ctx->could_write_db)) {
adam@2176	839 uw_try_reconnecting(ctx);
adam@2176	840
adam@2176	841 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adam@2176	842 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adam@2176	843 }
adam@2176	844
adam@1931	845 ctx->transaction_started = 1;
adam@2178	846 } else if (ctx->at_most_one_query && !ctx->db)
adam@2178	847 uw_try_reconnecting(ctx);
adamc@671	848 }
adamc@671	849
adamc@772	850 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	851 if (ctx->client == NULL)
adamc@682	852 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	853
adamc@682	854 return ctx->client->id;
adamc@682	855 }
adamc@682	856
adamc@425	857 void uw_pop_cleanup(uw_context ctx) {
adamc@425	858 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	859 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	860
adamc@425	861 --ctx->cleanup_front;
adamc@425	862 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	863 }
adamc@425	864
adamc@311	865 char *uw_error_message(uw_context ctx) {
adamc@167	866 return ctx->error_message;
adamc@167	867 }
adamc@167	868
adamc@1115	869 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	870 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	871 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	872 }
adamc@1115	873
adamc@759	874 static input *INP(uw_context ctx) {
adamc@759	875 if (ctx->cur_container == NULL)
adamc@759	876 return ctx->inputs;
adamc@759	877 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	878 return ctx->cur_container->data.subform.fields;
adamc@759	879 else if (ctx->cur_container->kind == ENTRY)
adamc@759	880 return ctx->cur_container->data.entry.fields;
adamc@759	881 else
adamc@760	882 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	883 }
adamc@759	884
adamc@760	885 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	886 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	887 *ptr += new_start - old_start;
adamc@760	888 }
adamc@760	889
adamc@760	890 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	891 switch (x->kind) {
adamc@759	892 case SUBFORM:
adamc@760	893 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	894 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	895 break;
adamc@759	896 case SUBFORMS:
adamc@760	897 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	898 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	899 break;
adamc@759	900 case ENTRY:
adamc@760	901 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	902 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	903 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	904 break;
adamc@1134	905 default:
adamc@1134	906 break;
phurst@1981	907 }
adamc@759	908 }
adamc@759	909
adamc@1113	910 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	911
adamc@759	912 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	913 size_t i;
adamc@759	914 input *r;
adamc@759	915
adamc@759	916 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	917 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	918 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	919
adamc@759	920 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	921
adamc@760	922 if (ctx->subinputs != new_subinputs) {
adamc@760	923 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	924 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	925 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	926 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	927
adamc@760	928 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	929
adamc@760	930 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	931 ctx->subinputs = new_subinputs;
adamc@760	932 }
adamc@759	933 }
adamc@759	934
adamc@759	935 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	936
adamc@759	937 for (i = 0; i < len; ++i)
adam@1474	938 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	939
adamc@759	940 return r;
adamc@759	941 }
adamc@756	942
adamc@801	943 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	944 //printf("Input name %s\n", name);
adamc@1038	945
adamc@756	946 if (!strcasecmp(name, ".b")) {
adamc@1094	947 int n = ctx->app->input_num(value);
adamc@756	948 input *inps;
adamc@756	949
adamc@801	950 if (n < 0) {
adam@1444	951 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	952 return -1;
adamc@801	953 }
adamc@801	954
adamc@1094	955 if (n >= ctx->app->inputs_len) {
adam@1444	956 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	957 return -1;
adamc@801	958 }
adamc@756	959
adamc@1094	960 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	961
adamc@759	962 INP(ctx)[n].kind = SUBFORM;
adamc@759	963 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	964 INP(ctx)[n].data.subform.fields = inps;
adamc@759	965 ctx->cur_container = &INP(ctx)[n];
adamc@756	966 } else if (!strcasecmp(name, ".e")) {
adamc@756	967 input *tmp;
adamc@756	968
adamc@801	969 if (ctx->cur_container == NULL) {
adamc@801	970 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	971 return -1;
adamc@801	972 }
adamc@756	973
adamc@759	974 tmp = ctx->cur_container;
adamc@759	975 switch (tmp->kind) {
adamc@759	976 case SUBFORM:
adamc@759	977 ctx->cur_container = tmp->data.subform.parent;
adamc@759	978 tmp->data.subform.parent = NULL;
adamc@759	979 break;
adamc@759	980 case SUBFORMS:
adamc@759	981 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	982 tmp->data.subforms.parent = NULL;
adamc@759	983 break;
adamc@759	984 case ENTRY:
adamc@759	985 ctx->cur_container = tmp->data.entry.parent;
adamc@759	986 break;
adamc@759	987 default:
adamc@801	988 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	989 return -1;
adamc@759	990 }
adamc@759	991 } else if (!strcasecmp(name, ".s")) {
adamc@1094	992 int n = ctx->app->input_num(value);
adamc@759	993
adamc@801	994 if (n < 0) {
adam@1444	995 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	996 return -1;
adamc@801	997 }
adamc@801	998
adamc@1094	999 if (n >= ctx->app->inputs_len) {
adam@1444	1000 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	1001 return -1;
adamc@801	1002 }
adamc@759	1003
adamc@759	1004 INP(ctx)[n].kind = SUBFORMS;
adamc@759	1005 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1006 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	1007 ctx->cur_container = &INP(ctx)[n];
adamc@759	1008 } else if (!strcasecmp(name, ".i")) {
adamc@759	1009 input *inps;
adamc@759	1010
adamc@801	1011 if (!ctx->cur_container) {
adamc@801	1012 uw_set_error(ctx, "New entry without container");
adamc@801	1013 return -1;
adamc@801	1014 }
adamc@801	1015
adamc@801	1016 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	1017 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	1018 return -1;
adamc@801	1019 }
adamc@759	1020
adamc@1094	1021 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	1022
adamc@759	1023 inps->kind = ENTRY;
adamc@759	1024 inps->data.entry.parent = ctx->cur_container;
adamc@759	1025 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	1026 ctx->cur_container->data.subforms.entries = inps;
adamc@759	1027
adamc@759	1028 inps->data.entry.fields = inps+1;
adamc@759	1029 ctx->cur_container = inps;
adamc@756	1030 } else {
adamc@1094	1031 int n = ctx->app->input_num(name);
adamc@756	1032
adam@1384	1033 if (n < 0)
adam@1384	1034 return 0;
adamc@801	1035
adamc@1094	1036 if (n >= ctx->app->inputs_len) {
adam@1444	1037 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	1038 return -1;
adamc@801	1039 }
adamc@756	1040
adamc@756	1041 INP(ctx)[n].kind = NORMAL;
adamc@756	1042 INP(ctx)[n].data.normal = value;
adamc@756	1043 }
adamc@801	1044
adamc@801	1045 return 0;
adamc@144	1046 }
adamc@144	1047
adamc@311	1048 char *uw_get_input(uw_context ctx, int n) {
adamc@169	1049 if (n < 0)
adamc@311	1050 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1051 if (n >= ctx->app->inputs_len)
adamc@311	1052 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1053
adamc@756	1054 switch (INP(ctx)[n].kind) {
adamc@737	1055 case UNSET:
adamc@737	1056 return NULL;
adamc@739	1057 case FIL:
adamc@739	1058 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1059 case SUBFORM:
adamc@756	1060 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1061 case SUBFORMS:
adamc@759	1062 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1063 case ENTRY:
adamc@759	1064 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1065 case NORMAL:
adamc@756	1066 return INP(ctx)[n].data.normal;
adamc@737	1067 default:
adamc@737	1068 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1069 }
adamc@138	1070 }
adamc@138	1071
adamc@311	1072 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	1073 if (n < 0)
adamc@311	1074 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1075 if (n >= ctx->app->inputs_len)
adamc@311	1076 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1077
adamc@756	1078 switch (INP(ctx)[n].kind) {
adamc@737	1079 case UNSET:
adamc@737	1080 return "";
adamc@739	1081 case FIL:
adamc@739	1082 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1083 case SUBFORM:
adamc@756	1084 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1085 case SUBFORMS:
adamc@759	1086 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1087 case ENTRY:
adamc@759	1088 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1089 case NORMAL:
adamc@756	1090 return INP(ctx)[n].data.normal;
adamc@737	1091 default:
adamc@737	1092 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1093 }
adamc@737	1094 }
adamc@737	1095
adamc@801	1096 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1097 int n = ctx->app->input_num(name);
adamc@737	1098
adamc@801	1099 if (n < 0) {
adam@2054	1100 uw_set_error(ctx, "Bad file input name");
adamc@801	1101 return -1;
adamc@801	1102 }
adamc@801	1103
adamc@1094	1104 if (n >= ctx->app->inputs_len) {
adam@2054	1105 uw_set_error(ctx, "For file input name, index %d is out of range", n);
adamc@801	1106 return -1;
adamc@801	1107 }
adamc@737	1108
adamc@739	1109 ctx->inputs[n].kind = FIL;
adamc@739	1110 ctx->inputs[n].data.file = f;
adamc@801	1111
adamc@801	1112 return 0;
adamc@737	1113 }
adamc@737	1114
adamc@739	1115 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1116
adamc@739	1117 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1118 if (n < 0)
adamc@737	1119 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1120 if (n >= ctx->app->inputs_len)
adamc@737	1121 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1122
adamc@756	1123 switch (INP(ctx)[n].kind) {
adamc@737	1124 case UNSET:
adamc@737	1125 {
adamc@739	1126 char *data = uw_malloc(ctx, 0);
adamc@740	1127 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1128 return f;
adamc@737	1129 }
adamc@739	1130 case FIL:
adamc@756	1131 return INP(ctx)[n].data.file;
adamc@737	1132 case NORMAL:
adamc@737	1133 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1134 case SUBFORM:
adamc@756	1135 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1136 case SUBFORMS:
adamc@759	1137 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1138 case ENTRY:
adamc@759	1139 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1140 default:
adamc@737	1141 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1142 }
adamc@190	1143 }
adamc@190	1144
adamc@756	1145 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1146 if (n < 0)
adamc@756	1147 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1148 if (n >= ctx->app->inputs_len)
adamc@756	1149 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1150
adamc@756	1151 switch (INP(ctx)[n].kind) {
adamc@756	1152 case UNSET:
adamc@756	1153 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1154 case FIL:
adamc@756	1155 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1156 case NORMAL:
adamc@756	1157 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1158 case SUBFORMS:
adamc@759	1159 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1160 case ENTRY:
adamc@759	1161 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1162 case SUBFORM:
adamc@759	1163 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1164 ctx->cur_container = &INP(ctx)[n];
adamc@756	1165 return;
adamc@756	1166 default:
adamc@756	1167 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1168 }
adamc@756	1169 }
adamc@756	1170
adamc@756	1171 void uw_leave_subform(uw_context ctx) {
adamc@756	1172 input *tmp;
adamc@756	1173
adamc@759	1174 if (ctx->cur_container == NULL)
adamc@756	1175 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1176
adamc@759	1177 tmp = ctx->cur_container;
adamc@759	1178 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1179 tmp->data.subform.parent = NULL;
adamc@759	1180 }
adamc@759	1181
adamc@759	1182 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1183 input *inps;
adamc@759	1184
adamc@759	1185 if (n < 0)
adamc@759	1186 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1187 if (n >= ctx->app->inputs_len)
adamc@759	1188 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1189
adamc@759	1190 switch (INP(ctx)[n].kind) {
adamc@759	1191 case UNSET:
adamc@759	1192 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1193 case FIL:
adamc@759	1194 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1195 case NORMAL:
adamc@759	1196 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1197 case SUBFORM:
adamc@759	1198 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1199 case ENTRY:
adamc@759	1200 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1201 case SUBFORMS:
adamc@759	1202 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1203 if (inps) {
adamc@759	1204 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1205 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1206 return 1;
adamc@759	1207 } else
adamc@759	1208 return 0;
adamc@759	1209 default:
adamc@759	1210 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1211 }
adamc@759	1212 }
adamc@759	1213
adamc@759	1214 int uw_next_entry(uw_context ctx) {
adamc@759	1215 if (ctx->cur_container == NULL)
adamc@759	1216 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1217
adamc@759	1218 switch (ctx->cur_container->kind) {
adamc@759	1219 case UNSET:
adamc@759	1220 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1221 case FIL:
adamc@759	1222 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1223 case NORMAL:
adamc@759	1224 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1225 case SUBFORM:
adamc@759	1226 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1227 case SUBFORMS:
adamc@759	1228 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1229 case ENTRY:
adamc@759	1230 if (ctx->cur_container->data.entry.next) {
adamc@759	1231 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1232 return 1;
adamc@759	1233 } else {
adamc@759	1234 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1235 return 0;
adamc@759	1236 }
adamc@759	1237 default:
adamc@759	1238 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1239 }
adamc@756	1240 }
adamc@756	1241
adamc@643	1242 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1243 ctx->script_header = s;
adamc@643	1244 }
adamc@643	1245
adamc@1094	1246 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1247 return ctx->app->url_prefix;
adamc@667	1248 }
adamc@667	1249
adamc@693	1250 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1251 ctx->needs_push = n;
adamc@693	1252 }
adamc@693	1253
adamc@736	1254 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1255 ctx->needs_sig = n;
adamc@736	1256 }
adamc@736	1257
adam@1936	1258 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936	1259 ctx->could_write_db = n;
adam@1936	1260 }
adam@1936	1261
adam@2056	1262 void uw_set_at_most_one_query(uw_context ctx, int n) {
adam@2056	1263 ctx->at_most_one_query = n;
adam@2056	1264 }
adam@2056	1265
adamc@667	1266
adam@1369	1267 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1268 if (b->back - b->front < extra) {
adamc@666	1269 size_t desired = b->front - b->start + extra, next;
adamc@136	1270 char *new_heap;
adamc@136	1271
adamc@666	1272 next = b->back - b->start;
adamc@317	1273 if (next == 0)
adamc@317	1274 next = 1;
adamc@317	1275 for (; next < desired; next *= 2);
adamc@136	1276
adamc@1134	1277 if (next > b->max) {
adamc@1113	1278 if (desired <= b->max)
adamc@1113	1279 next = desired;
adamc@1113	1280 else
adamc@1113	1281 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1282 }
adamc@1113	1283
adamc@666	1284 new_heap = realloc(b->start, next);
adamc@666	1285 b->front = new_heap + (b->front - b->start);
adamc@666	1286 b->back = new_heap + next;
adamc@136	1287
adamc@667	1288 if (new_heap != b->start) {
adamc@666	1289 b->start = new_heap;
adam@1389	1290 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1291 }
adamc@136	1292
adamc@666	1293 b->start = new_heap;
adamc@136	1294 }
adamc@136	1295 }
adamc@136	1296
adamc@832	1297 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1298 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1299 }
adamc@666	1300
adamc@832	1301 char *uw_heap_front(uw_context ctx) {
adamc@832	1302 return ctx->heap.front;
adamc@832	1303 }
adamc@832	1304
adamc@832	1305 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1306 ctx->heap.front = fr;
adamc@832	1307 }
adamc@832	1308
adam@1782	1309 void uw_begin_initializing(uw_context ctx) {
adam@1782	1310 ctx->amInitializing = 1;
adam@1782	1311 }
adam@1782	1312
adam@1782	1313 void uw_end_initializing(uw_context ctx) {
adam@1782	1314 ctx->amInitializing = 0;
adam@1782	1315 }
adam@1782	1316
adam@2013	1317 static void align_heap(uw_context ctx) {
adam@2013	1318 size_t posn = ctx->heap.front - ctx->heap.start;
adam@2013	1319
adam@2017	1320 if (posn % sizeof(void *) != 0) {
adam@2017	1321 size_t bump = sizeof(void ) - posn % sizeof(void );
adam@2013	1322 uw_check_heap(ctx, bump);
adam@2013	1323 ctx->heap.front += bump;
adam@2013	1324 }
adam@2013	1325 }
adam@2013	1326
adamc@311	1327 void *uw_malloc(uw_context ctx, size_t len) {
adam@2013	1328 // On some architectures, it's important that all word-sized memory accesses
adam@2013	1329 // be to word-aligned addresses, so we'll do a little bit of extra work here
adam@2013	1330 // in anticipation of a possible word-aligned access to the address we'll
adam@2013	1331 // return.
adam@2013	1332
adamc@136	1333 void *result;
adamc@136	1334
adam@1782	1335 if (ctx->amInitializing) {
adam@2017	1336 int error = posix_memalign(&result, sizeof(void *), len);
adam@2013	1337
adam@2013	1338 if (!error)
adam@1782	1339 return result;
adam@1782	1340 else
adam@2013	1341 uw_error(ctx, FATAL, "uw_malloc: posix_memalign() returns %d", error);
adam@1782	1342 } else {
adam@2013	1343 align_heap(ctx);
adam@2013	1344
adam@1782	1345 uw_check_heap(ctx, len);
adam@1782	1346
adam@1782	1347 result = ctx->heap.front;
adam@1782	1348 ctx->heap.front += len;
adam@1782	1349 return result;
adam@1782	1350 }
adamc@117	1351 }
adamc@117	1352
adamc@323	1353 void uw_begin_region(uw_context ctx) {
adam@2013	1354 align_heap(ctx);
adam@2013	1355
adamc@666	1356 regions r = (regions ) ctx->heap.front;
adamc@323	1357
adamc@323	1358 uw_check_heap(ctx, sizeof(regions));
adamc@323	1359
adamc@666	1360 ctx->heap.front += sizeof(regions);
adamc@323	1361
adamc@323	1362 r->next = ctx->regions;
adamc@323	1363 ctx->regions = r;
adamc@323	1364 }
adamc@323	1365
adamc@323	1366 void uw_end_region(uw_context ctx) {
adamc@323	1367 regions *r = ctx->regions;
adamc@323	1368
adamc@323	1369 if (r == NULL)
adamc@323	1370 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1371
adamc@666	1372 ctx->heap.front = (char *) r;
adamc@323	1373 ctx->regions = r->next;
adamc@323	1374 }
adamc@323	1375
adamc@324	1376 void uw_memstats(uw_context ctx) {
adam@1369	1377 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1378 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1379 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1380 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1381 }
adamc@324	1382
adam@1915	1383 int uw_pagelen(uw_context ctx) {
adam@1915	1384 return ctx->page.front - ctx->page.start;
adam@1915	1385 }
adam@1915	1386
adamc@311	1387 int uw_send(uw_context ctx, int sock) {
adam@1949	1388 size_t target_length = (ctx->outHeaders.front - ctx->outHeaders.start) + 2 + (ctx->page.front - ctx->page.start);
adam@1949	1389
adam@1949	1390 if (ctx->output_buffer_size < target_length) {
adam@1949	1391 do {
adam@1949	1392 ctx->output_buffer_size *= 2;
adam@1949	1393 } while (ctx->output_buffer_size < target_length);
adam@1949	1394 ctx->output_buffer = realloc(ctx->output_buffer, ctx->output_buffer_size);
adam@1949	1395 }
adam@1949	1396
adam@1949	1397 memcpy(ctx->output_buffer, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adam@1949	1398 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start), "\r\n", 2);
adam@1949	1399 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start) + 2, ctx->page.start, ctx->page.front - ctx->page.start);
adam@1949	1400
adam@1949	1401 return uw_really_send(sock, ctx->output_buffer, target_length);
adamc@462	1402 }
adamc@462	1403
adamc@856	1404 int uw_print(uw_context ctx, int fd) {
adamc@856	1405 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1406
adamc@856	1407 if (n < 0)
adamc@856	1408 return n;
adamc@856	1409
adamc@856	1410 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1411
adamc@856	1412 if (n < 0)
adamc@856	1413 return n;
adamc@856	1414
adamc@856	1415 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1416 }
adamc@856	1417
adamc@860	1418 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1419 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1420
adamc@860	1421 if (n < 0)
adamc@860	1422 return n;
adamc@860	1423
adamc@860	1424 n = output(data, "\r\n", 2);
adamc@860	1425
adamc@860	1426 if (n < 0)
adamc@860	1427 return n;
adamc@860	1428
adamc@860	1429 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1430 }
adamc@860	1431
adamc@462	1432 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1433 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1434 }
adamc@462	1435
adamc@462	1436 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1437 int len = strlen(s);
adamc@462	1438
adamc@462	1439 uw_check_headers(ctx, len + 1);
adamc@666	1440 strcpy(ctx->outHeaders.front, s);
adamc@666	1441 ctx->outHeaders.front += len;
adamc@562	1442 }
adamc@562	1443
adam@1934	1444 int uw_has_contentLength(uw_context ctx) {
adam@1934	1445 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934	1446 }
adam@1934	1447
adamc@1110	1448 void uw_clear_headers(uw_context ctx) {
adam@1369	1449 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1450 }
adamc@1110	1451
adam@1932	1452 void uw_Basis_clear_page(uw_context ctx) {
adam@1932	1453 uw_buffer_reset(&ctx->page);
adam@1932	1454 }
adam@1932	1455
adamc@562	1456 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1457 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1458 }
adamc@562	1459
adamc@562	1460 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1461 int len = strlen(s);
adamc@562	1462
adamc@562	1463 uw_check_script(ctx, len + 1);
adamc@666	1464 strcpy(ctx->script.front, s);
adamc@666	1465 ctx->script.front += len;
adamc@562	1466 }
adamc@562	1467
adam@1446	1468 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1469 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1470 uw_write_script(ctx, "sig=\"");
adam@1671	1471 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1472 uw_write_script(ctx, "\";");
adam@1671	1473 }
adam@1671	1474
adam@1446	1475 return ctx->script.start;
adam@1446	1476 }
adam@1446	1477
adamc@695	1478 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1479 if (s[0] == 0)
adamc@695	1480 return "";
adamc@695	1481 else {
adamc@695	1482 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1483 sprintf(r, " onload='%s'", s);
adamc@695	1484 return r;
adamc@695	1485 }
adamc@695	1486 }
adamc@695	1487
adamc@1042	1488 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1489 if (ctx->script_header[0] == 0)
adamc@1042	1490 return "";
adamc@1042	1491 else {
vshabanoff@1763	1492 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763	1493 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042	1494 return r;
adamc@1042	1495 }
adamc@1042	1496 }
adamc@1042	1497
adamc@694	1498 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1499 if (ctx->client == NULL) {
adamc@736	1500 if (ctx->needs_sig) {
adamc@1094	1501 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1502 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1503 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1504 return r;
adamc@736	1505 }
adamc@736	1506 else
adamc@736	1507 return "";
adamc@736	1508 } else {
adamc@1094	1509 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1510 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1511 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1512 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1513 (ctx->isPost ? "true" : "false"),
adamc@682	1514 ctx->client->id,
adamc@682	1515 ctx->client->pass,
adamc@1094	1516 ctx->app->url_prefix,
adamc@1094	1517 ctx->app->timeout,
adamc@736	1518 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1519 sig,
adamc@736	1520 ctx->needs_sig ? "\";" : "");
adamc@679	1521 return r;
adamc@668	1522 }
adamc@667	1523 }
adamc@667	1524
adamc@574	1525 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1526 char r, s2;
adamc@574	1527
adam@1446	1528 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1529
adamc@666	1530 r = s2 = ctx->heap.front;
adamc@574	1531 *s2++ = '"';
adamc@574	1532
adamc@574	1533 for (; *s; s++) {
adam@1286	1534 unsigned char c = *s;
adamc@574	1535
adamc@574	1536 switch (c) {
adamc@574	1537 case '"':
adamc@574	1538 strcpy(s2, "\\\"");
adamc@574	1539 s2 += 2;
adamc@574	1540 break;
adamc@1027	1541 case '\'':
adamc@1027	1542 strcpy(s2, "\\047");
adamc@1027	1543 s2 += 4;
adamc@1027	1544 break;
adamc@574	1545 case '\\':
adamc@574	1546 strcpy(s2, "\\\\");
adamc@574	1547 s2 += 2;
adamc@574	1548 break;
adam@1457	1549 case '<':
adam@1457	1550 strcpy(s2, "\\074");
adam@1457	1551 s2 += 4;
adam@1457	1552 break;
adamc@574	1553 default:
adam@1286	1554 if (isprint((int)c) \|\| c >= 128)
adamc@574	1555 *s2++ = c;
adamc@574	1556 else {
adam@1429	1557 sprintf(s2, "\\%03o", c);
adamc@574	1558 s2 += 4;
adamc@574	1559 }
adamc@574	1560 }
adamc@574	1561 }
adamc@574	1562
adamc@574	1563 strcpy(s2, "\"");
adamc@910	1564 ctx->heap.front = s2 + 2;
adamc@574	1565 return r;
adamc@574	1566 }
adamc@574	1567
adam@1286	1568 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1569 unsigned char c = c1;
adamc@1025	1570 char r, s2;
adamc@1025	1571
adam@1446	1572 uw_check_heap(ctx, 7);
adamc@1025	1573
adamc@1025	1574 r = s2 = ctx->heap.front;
adamc@1025	1575 *s2++ = '"';
adamc@1025	1576
adamc@1025	1577 switch (c) {
adamc@1025	1578 case '"':
adamc@1025	1579 strcpy(s2, "\\\"");
adamc@1025	1580 s2 += 2;
adamc@1025	1581 break;
adamc@1027	1582 case '\'':
adamc@1027	1583 strcpy(s2, "\\047");
adamc@1027	1584 s2 += 4;
adamc@1027	1585 break;
adamc@1025	1586 case '\\':
adamc@1025	1587 strcpy(s2, "\\\\");
adamc@1025	1588 s2 += 2;
adamc@1025	1589 break;
adam@1457	1590 case '<':
adam@1457	1591 strcpy(s2, "\\074");
adam@1457	1592 s2 += 4;
adam@1457	1593 break;
adamc@1025	1594 default:
adam@1286	1595 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1596 *s2++ = c;
adamc@1025	1597 else {
adam@1429	1598 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1599 s2 += 4;
adamc@1025	1600 }
adamc@1025	1601 }
adamc@1025	1602
adamc@1025	1603 strcpy(s2, "\"");
adamc@1025	1604 ctx->heap.front = s2 + 2;
adamc@1025	1605 return r;
adamc@1025	1606 }
adamc@1025	1607
adamc@574	1608 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1609 char r, s2;
adamc@574	1610
adam@1446	1611 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1612
adamc@666	1613 r = s2 = ctx->script.front;
adamc@574	1614 *s2++ = '"';
adamc@574	1615
adamc@574	1616 for (; *s; s++) {
adam@1286	1617 unsigned char c = *s;
adamc@574	1618
adamc@574	1619 switch (c) {
adamc@577	1620 case '\'':
adamc@1027	1621 strcpy(s2, "\\");
adamc@574	1622 s2 += 2;
adamc@574	1623 break;
adamc@574	1624 case '\\':
adamc@574	1625 strcpy(s2, "\\\\");
adamc@574	1626 s2 += 2;
adamc@574	1627 break;
adam@1457	1628 case '<':
adam@1457	1629 strcpy(s2, "\\074");
adam@1457	1630 s2 += 4;
adam@1457	1631 break;
adamc@574	1632 default:
adam@1286	1633 if (isprint((int)c) \|\| c >= 128)
adamc@574	1634 *s2++ = c;
adamc@574	1635 else {
adam@1429	1636 sprintf(s2, "\\%03o", c);
adamc@574	1637 s2 += 4;
adamc@574	1638 }
adamc@574	1639 }
adamc@574	1640 }
adamc@574	1641
adamc@574	1642 strcpy(s2, "\"");
adamc@666	1643 ctx->script.front = s2 + 1;
adamc@574	1644 return r;
adamc@574	1645 }
adamc@574	1646
adamc@682	1647 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1648 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1649 return "null";
adamc@682	1650 else {
adamc@682	1651 int len;
adamc@682	1652 char *r;
adamc@682	1653
adamc@682	1654 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1655 r = ctx->heap.front;
adamc@682	1656 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1657 ctx->heap.front += len+1;
adamc@682	1658 return r;
adamc@682	1659 }
adamc@682	1660 }
adamc@682	1661
adam@1446	1662 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1663 int len;
adamc@577	1664 size_t s_len = strlen(s);
adamc@562	1665
grrwlf@1998	1666 if(ctx->id < 0)
grrwlf@1998	1667 uw_error(ctx, FATAL, "Attempt to create client source using inappropriate context");
grrwlf@1998	1668
adam@1446	1669 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1670 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1671 ctx->script.front += len;
adamc@666	1672 strcpy(ctx->script.front, s);
adamc@666	1673 ctx->script.front += s_len;
adamc@970	1674 strcpy(ctx->script.front, "));");
adamc@972	1675 ctx->script.front += 3;
adamc@562	1676
adam@1446	1677 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1678 return r;
adam@1446	1679 }
adam@1446	1680
adam@1446	1681 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1682 int len;
adamc@577	1683 size_t s_len = strlen(s);
adamc@577	1684
adam@1446	1685 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1686 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1687 ctx->script.front += len;
adamc@666	1688 strcpy(ctx->script.front, s);
adamc@666	1689 ctx->script.front += s_len;
adamc@970	1690 strcpy(ctx->script.front, "));");
adamc@972	1691 ctx->script.front += 3;
adamc@577	1692
adamc@577	1693 return uw_unit_v;
adamc@577	1694 }
adamc@577	1695
adamc@311	1696 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1697 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1698 }
adamc@117	1699
adamc@311	1700 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1701 *(ctx->page.front)++ = c;
adam@1413	1702 *ctx->page.front = 0;
adamc@117	1703 }
adamc@117	1704
adamc@311	1705 void uw_writec(uw_context ctx, char c) {
adam@1413	1706 uw_check(ctx, 2);
adamc@311	1707 uw_writec_unsafe(ctx, c);
adamc@117	1708 }
adamc@117	1709
adam@2085	1710 void uw_Basis_writec(uw_context ctx, char c) {
adam@2085	1711 uw_writec(ctx, c);
adam@2085	1712 }
adam@2085	1713
adamc@311	1714 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1715 int len = strlen(s);
adamc@666	1716 memcpy(ctx->page.front, s, len);
adamc@666	1717 ctx->page.front += len;
adamc@117	1718 }
adamc@117	1719
adamc@311	1720 void uw_write(uw_context ctx, const char* s) {
adamc@311	1721 uw_check(ctx, strlen(s) + 1);
adamc@311	1722 uw_write_unsafe(ctx, s);
adamc@666	1723 *ctx->page.front = 0;
adamc@102	1724 }
adamc@106	1725
ziv@2204	1726 void uw_recordingStart(uw_context ctx) {
ziv@2262	1727 if (ctx->numRecording++ == 0) {
ziv@2262	1728 ctx->recordingOffset = ctx->page.front - ctx->page.start;
ziv@2262	1729 }
ziv@2204	1730 }
ziv@2204	1731
ziv@2204	1732 char *uw_recordingRead(uw_context ctx) {
ziv@2262	1733 // Only the outermost recorder can read unless the recording is empty.
ziv@2262	1734 char *recording = ctx->page.start + ctx->recordingOffset;
ziv@2262	1735 if (--ctx->numRecording > 0 && recording != ctx->page.front) {
ziv@2262	1736 return NULL;
ziv@2262	1737 }
ziv@2262	1738 return strdup(recording);
ziv@2204	1739 }
ziv@2204	1740
adamc@311	1741 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1742 char *result;
adamc@136	1743 int len;
adamc@311	1744 uw_check_heap(ctx, INTS_MAX);
adamc@666	1745 result = ctx->heap.front;
adamc@276	1746 sprintf(result, "%lld%n", n, &len);
adamc@666	1747 ctx->heap.front += len+1;
adamc@136	1748 return result;
adamc@106	1749 }
adamc@106	1750
adamc@311	1751 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1752 char *result;
adamc@136	1753 int len;
adamc@311	1754 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1755 result = ctx->heap.front;
adam@1920	1756 sprintf(result, "%.16g%n", n, &len);
adamc@666	1757 ctx->heap.front += len+1;
adamc@136	1758 return result;
adamc@106	1759 }
adamc@106	1760
adamc@311	1761 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1762 int len = strlen(s);
adamc@136	1763 char result, p;
adamc@311	1764 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1765
adamc@666	1766 result = p = ctx->heap.front;
adamc@136	1767
adamc@136	1768 for (; *s; s++) {
adamc@1054	1769 unsigned char c = *s;
adamc@136	1770
adamc@136	1771 if (c == '"') {
adamc@136	1772 strcpy(p, """);
adamc@136	1773 p += 6;
adamc@136	1774 } else if (c == '&') {
adamc@136	1775 strcpy(p, "&");
adamc@136	1776 p += 5;
adamc@136	1777 }
adamc@1059	1778 else
adamc@136	1779 *p++ = c;
adamc@136	1780 }
adamc@136	1781
adamc@137	1782 *p++ = 0;
adamc@666	1783 ctx->heap.front = p;
adamc@136	1784 return result;
adamc@106	1785 }
adamc@106	1786
adamc@1011	1787 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1788 char result, p;
adamc@1011	1789 uw_check_heap(ctx, 7);
adamc@1011	1790
adamc@1011	1791 result = p = ctx->heap.front;
adamc@1011	1792
adamc@1011	1793 if (c == '"') {
adamc@1011	1794 strcpy(p, """);
adamc@1011	1795 p += 6;
adamc@1011	1796 } else if (c == '&') {
adamc@1011	1797 strcpy(p, "&");
adamc@1011	1798 p += 5;
adamc@1011	1799 }
adamc@1059	1800 else
adamc@1011	1801 *p++ = c;
adamc@1011	1802
adamc@1011	1803 *p++ = 0;
adamc@1011	1804 ctx->heap.front = p;
adamc@1011	1805 return result;
adamc@1011	1806 }
adamc@1011	1807
adamc@721	1808 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1809 return s;
adamc@721	1810 }
adamc@721	1811
adamc@311	1812 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1813 int len;
adamc@117	1814
adamc@666	1815 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1816 ctx->page.front += len;
adamc@106	1817 }
adamc@106	1818
adamc@428	1819 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1820 uw_check(ctx, INTS_MAX);
adamc@311	1821 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1822
adamc@428	1823 return uw_unit_v;
adamc@106	1824 }
adamc@106	1825
adamc@428	1826 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1827 int len;
adamc@117	1828
adamc@311	1829 uw_check(ctx, FLOATS_MAX);
adamc@666	1830 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1831 ctx->page.front += len;
adamc@428	1832
adamc@428	1833 return uw_unit_v;
adamc@117	1834 }
adamc@117	1835
adamc@428	1836 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1837 uw_check(ctx, strlen(s) * 6);
adamc@117	1838
adamc@106	1839 for (; *s; s++) {
adamc@1054	1840 unsigned char c = *s;
adamc@106	1841
adamc@106	1842 if (c == '"')
adamc@311	1843 uw_write_unsafe(ctx, """);
adamc@136	1844 else if (c == '&')
adamc@311	1845 uw_write_unsafe(ctx, "&");
adamc@1059	1846 else
adamc@311	1847 uw_writec_unsafe(ctx, c);
adamc@106	1848 }
adamc@428	1849
adamc@428	1850 return uw_unit_v;
adamc@106	1851 }
adamc@120	1852
adamc@1011	1853 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1854 uw_check(ctx, 6);
adamc@1011	1855
adamc@1011	1856 if (c == '"')
adamc@1011	1857 uw_write_unsafe(ctx, """);
adamc@1011	1858 else if (c == '&')
adamc@1011	1859 uw_write_unsafe(ctx, "&");
adamc@1059	1860 else
adamc@1011	1861 uw_writec_unsafe(ctx, c);
adamc@1011	1862
adamc@1011	1863 return uw_unit_v;
adamc@1011	1864 }
adamc@1011	1865
adamc@120	1866
adamc@311	1867 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1868 int len;
adamc@137	1869 char *r;
adamc@137	1870
adamc@311	1871 uw_check_heap(ctx, INTS_MAX);
adamc@666	1872 r = ctx->heap.front;
adamc@276	1873 sprintf(r, "%lld%n", n, &len);
adamc@666	1874 ctx->heap.front += len+1;
adamc@137	1875 return r;
adamc@120	1876 }
adamc@120	1877
adamc@682	1878 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1879 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1880 return "";
adamc@682	1881 else {
adamc@682	1882 int len;
adamc@682	1883 char *r;
adamc@679	1884
adamc@682	1885 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1886 r = ctx->heap.front;
adamc@682	1887 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1888 ctx->heap.front += len+1;
adamc@682	1889 return r;
adamc@682	1890 }
adamc@679	1891 }
adamc@679	1892
adamc@311	1893 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1894 int len;
adamc@137	1895 char *r;
adamc@137	1896
adamc@311	1897 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1898 r = ctx->heap.front;
adamc@137	1899 sprintf(r, "%g%n", n, &len);
adamc@666	1900 ctx->heap.front += len+1;
adamc@137	1901 return r;
adamc@120	1902 }
adamc@120	1903
adamc@311	1904 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1905 char r, p;
adamc@137	1906
adamc@925	1907 if (s[0] == '\0')
adamc@925	1908 return "_";
adamc@925	1909
adamc@925	1910 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1911
adamc@925	1912 r = p = ctx->heap.front;
adamc@925	1913 if (s[0] == '_')
adamc@925	1914 *p++ = '_';
adamc@925	1915
adamc@925	1916 for (; *s; s++) {
adamc@1087	1917 unsigned char c = *s;
adamc@137	1918
adamc@137	1919 if (c == ' ')
adamc@137	1920 *p++ = '+';
adamc@137	1921 else if (isalnum(c))
adamc@137	1922 *p++ = c;
adamc@137	1923 else {
adamc@1259	1924 sprintf(p, ".%02X", c);
adamc@137	1925 p += 3;
adamc@137	1926 }
adamc@137	1927 }
adamc@137	1928
adamc@137	1929 *p++ = 0;
adamc@666	1930 ctx->heap.front = p;
adamc@137	1931 return r;
adamc@120	1932 }
adamc@120	1933
adamc@311	1934 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1935 if (b == uw_Basis_False)
adamc@186	1936 return "0";
adamc@186	1937 else
adamc@186	1938 return "1";
adamc@186	1939 }
adamc@186	1940
adam@1620	1941 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1942 char *r;
adam@1620	1943 int len;
adam@1620	1944 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1945 r = ctx->heap.front;
adam@1620	1946 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1947 ctx->heap.front += len+1;
adam@1620	1948 return r;
adam@1620	1949 }
adam@1620	1950
adamc@311	1951 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1952 int len;
adamc@120	1953
adamc@666	1954 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1955 ctx->page.front += len;
adamc@120	1956 }
adamc@120	1957
adamc@428	1958 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1959 uw_check(ctx, INTS_MAX);
adamc@311	1960 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1961
adamc@428	1962 return uw_unit_v;
adamc@120	1963 }
adamc@120	1964
adamc@682	1965 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1966 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1967 int len;
phurst@1981	1968
adamc@682	1969 uw_check(ctx, INTS_MAX + 1);
adamc@682	1970 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1971 ctx->page.front += len;
adamc@682	1972 }
phurst@1981	1973
adamc@679	1974 return uw_unit_v;
adamc@679	1975 }
adamc@679	1976
adamc@428	1977 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1978 int len;
adamc@120	1979
adamc@311	1980 uw_check(ctx, FLOATS_MAX);
adamc@666	1981 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1982 ctx->page.front += len;
adamc@428	1983
adamc@428	1984 return uw_unit_v;
adamc@120	1985 }
adamc@120	1986
adamc@488	1987 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1988 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1989 }
adamc@488	1990
adam@1404	1991 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1992 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1993 }
adam@1404	1994
adamc@428	1995 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1996 if (s[0] == '\0') {
adamc@925	1997 uw_check(ctx, 1);
adamc@925	1998 uw_writec_unsafe(ctx, '_');
adamc@925	1999 return uw_unit_v;
adamc@925	2000 }
adamc@925	2001
adamc@925	2002 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	2003
adamc@925	2004 if (s[0] == '_')
adamc@925	2005 uw_writec_unsafe(ctx, '_');
adamc@120	2006
adamc@120	2007 for (; *s; s++) {
adamc@1087	2008 unsigned char c = *s;
adamc@120	2009
adamc@120	2010 if (c == ' ')
adamc@311	2011 uw_writec_unsafe(ctx, '+');
adamc@120	2012 else if (isalnum(c))
adamc@311	2013 uw_writec_unsafe(ctx, c);
adamc@120	2014 else {
adamc@1259	2015 sprintf(ctx->page.front, ".%02X", c);
adamc@666	2016 ctx->page.front += 3;
adamc@120	2017 }
adamc@120	2018 }
adamc@428	2019
adamc@428	2020 return uw_unit_v;
adamc@120	2021 }
adamc@120	2022
adamc@428	2023 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2024 if (b == uw_Basis_False)
adamc@311	2025 uw_writec(ctx, '0');
adamc@186	2026 else
adamc@311	2027 uw_writec(ctx, '1');
adamc@428	2028
adamc@428	2029 return uw_unit_v;
adamc@186	2030 }
adamc@186	2031
adam@1620	2032 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	2033 int len;
phurst@1981	2034
adam@1620	2035 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	2036 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	2037 ctx->page.front += len;
phurst@1981	2038
adam@1620	2039 return uw_unit_v;
adam@1620	2040 }
adam@1620	2041
adamc@120	2042
adamc@311	2043 static char uw_unurlify_advance(char s) {
adamc@144	2044 char *new_s = strchr(s, '/');
adamc@120	2045
adamc@120	2046 if (new_s)
adamc@120	2047 *new_s++ = 0;
adamc@120	2048 else
adamc@144	2049 new_s = strchr(s, 0);
adamc@144	2050
adamc@144	2051 return new_s;
adamc@144	2052 }
adamc@144	2053
adamc@311	2054 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	2055 char new_s = uw_unurlify_advance(s);
adamc@311	2056 uw_Basis_int r;
adamc@120	2057
adamc@276	2058 r = atoll(*s);
adamc@120	2059 *s = new_s;
adamc@120	2060 return r;
adamc@120	2061 }
adamc@120	2062
adamc@311	2063 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	2064 char new_s = uw_unurlify_advance(s);
adamc@311	2065 uw_Basis_float r;
adamc@120	2066
adamc@120	2067 r = atof(*s);
adamc@120	2068 *s = new_s;
adamc@120	2069 return r;
adamc@120	2070 }
adamc@120	2071
adamc@488	2072 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	2073 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	2074 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	2075 return r;
adamc@488	2076 }
adamc@488	2077
adamc@1023	2078 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	2079 char s1, s2 = s;
adamc@144	2080 int n;
adamc@136	2081
adamc@1023	2082 if (!fromClient) {
adamc@1023	2083 if (*s2 == '_')
adamc@1023	2084 ++s2;
adamc@1259	2085 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	2086 s2 += 3;
adamc@1023	2087 }
adamc@925	2088
adamc@927	2089 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	2090 unsigned char c = *s2;
adamc@136	2091
adamc@136	2092 switch (c) {
adamc@136	2093 case '+':
adamc@136	2094 *s1 = ' ';
adamc@136	2095 break;
adamc@136	2096 case '%':
adamc@169	2097 if (s2[1] == 0)
adamc@311	2098 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	2099 if (s2[2] == 0)
adamc@311	2100 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	2101 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2102 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	2103 *s1 = n;
adamc@136	2104 s2 += 2;
adamc@136	2105 break;
adamc@1259	2106 case '.':
adamc@1259	2107 if (!fromClient) {
adamc@1259	2108 if (s2[1] == 0)
adamc@1259	2109 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	2110 if (s2[2] == 0)
adamc@1259	2111 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	2112 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2113 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	2114 *s1 = n;
adamc@1259	2115 s2 += 2;
adamc@1259	2116 break;
adamc@1259	2117 }
adamc@136	2118 default:
adamc@136	2119 *s1 = c;
adamc@136	2120 }
adamc@136	2121 }
adamc@136	2122 *s1++ = 0;
adamc@144	2123 return s1;
adamc@144	2124 }
adamc@144	2125
adamc@311	2126 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	2127 char new_s = uw_unurlify_advance(s);
adamc@311	2128 uw_Basis_bool r;
phurst@1981	2129
adamc@186	2130 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2131 r = uw_Basis_False;
adamc@186	2132 else
adamc@311	2133 r = uw_Basis_True;
adamc@186	2134
adamc@186	2135 *s = new_s;
adamc@186	2136 return r;
adamc@186	2137 }
adamc@186	2138
adamc@311	2139 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2140 char new_s = uw_unurlify_advance(s);
adamc@1134	2141 char *r;
adamc@1134	2142 int len;
adamc@144	2143
adamc@200	2144 len = strlen(*s);
adamc@311	2145 uw_check_heap(ctx, len + 1);
adamc@144	2146
adamc@666	2147 r = ctx->heap.front;
adamc@1023	2148 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2149 *s = new_s;
adamc@1023	2150 return r;
adamc@1023	2151 }
adamc@1023	2152
adamc@1109	2153 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2154 s = uw_unurlify_advance(s);
adamc@1109	2155 return uw_unit_v;
adamc@1109	2156 }
adamc@1109	2157
adamc@1023	2158 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2159 char new_s = uw_unurlify_advance(s);
adamc@1134	2160 char *r;
adamc@1134	2161 int len;
adamc@1023	2162
adamc@1023	2163 len = strlen(*s);
adamc@1023	2164 uw_check_heap(ctx, len + 1);
adamc@1023	2165
adamc@1023	2166 r = ctx->heap.front;
adamc@1023	2167 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2168 *s = new_s;
adamc@136	2169 return r;
adamc@120	2170 }
adamc@135	2171
adamc@135	2172
adamc@311	2173 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2174 int len;
adamc@286	2175 char *r;
adamc@286	2176
adamc@311	2177 uw_check_heap(ctx, INTS_MAX);
adamc@666	2178 r = ctx->heap.front;
adamc@286	2179 sprintf(r, "%lld%n", n, &len);
adamc@666	2180 ctx->heap.front += len+1;
adamc@286	2181 return r;
adamc@286	2182 }
adamc@286	2183
adamc@428	2184 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2185 int len;
adamc@286	2186
adamc@311	2187 uw_check(ctx, INTS_MAX);
adamc@666	2188 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2189 ctx->page.front += len;
phurst@1981	2190
adamc@428	2191 return uw_unit_v;
adamc@286	2192 }
adamc@286	2193
adam@1358	2194 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2195 unsigned int n = ch;
adam@1358	2196 int len;
adam@1358	2197 char *r;
adam@1358	2198
adam@1358	2199 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2200 r = ctx->heap.front;
adam@1358	2201 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2202 ctx->heap.front += len+1;
adam@1358	2203 return r;
adam@1358	2204 }
adam@1358	2205
adam@1358	2206 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2207 unsigned int n = ch;
adam@1358	2208 int len;
adam@1358	2209
adam@1358	2210 uw_check(ctx, INTS_MAX+3);
adam@1358	2211 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2212 ctx->page.front += len;
adam@1358	2213 return uw_unit_v;
adam@1358	2214 }
adam@1358	2215
adamc@311	2216 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2217 int len;
adamc@286	2218 char *r;
adamc@286	2219
adamc@311	2220 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2221 r = ctx->heap.front;
adamc@286	2222 sprintf(r, "%g%n", n, &len);
adamc@666	2223 ctx->heap.front += len+1;
adamc@286	2224 return r;
adamc@286	2225 }
adamc@286	2226
adamc@428	2227 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2228 int len;
adamc@286	2229
adamc@311	2230 uw_check(ctx, FLOATS_MAX);
adamc@666	2231 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2232 ctx->page.front += len;
adamc@428	2233
adamc@428	2234 return uw_unit_v;
adamc@286	2235 }
adamc@286	2236
adam@1365	2237 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2238 int len;
adam@1360	2239 char *r;
adam@1360	2240
adam@1360	2241 uw_check_heap(ctx, INTS_MAX);
adam@1360	2242 r = ctx->heap.front;
adamc@1377	2243 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2244 ctx->heap.front += len+1;
adam@1360	2245 return r;
adam@1360	2246 }
adam@1360	2247
adam@1365	2248 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2249 int len;
adam@1360	2250
adam@1360	2251 uw_check(ctx, INTS_MAX);
adam@1360	2252 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2253 ctx->page.front += len;
phurst@1981	2254
adam@1360	2255 return uw_unit_v;
adam@1360	2256 }
adam@1360	2257
adam@1444	2258 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2259 char r, s2;
adamc@137	2260
adamc@311	2261 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2262
adamc@666	2263 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2264 unsigned char c = *s;
adamc@137	2265
adamc@137	2266 switch (c) {
adamc@137	2267 case '<':
adamc@137	2268 strcpy(s2, "<");
adamc@137	2269 s2 += 4;
adamc@137	2270 break;
adamc@137	2271 case '&':
adamc@137	2272 strcpy(s2, "&");
adamc@137	2273 s2 += 5;
adamc@137	2274 break;
adamc@137	2275 default:
adamc@1059	2276 *s2++ = c;
adamc@137	2277 }
adamc@137	2278 }
adamc@137	2279
adamc@137	2280 *s2++ = 0;
adamc@666	2281 ctx->heap.front = s2;
adamc@137	2282 return r;
adamc@135	2283 }
adamc@135	2284
adamc@428	2285 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2286 uw_check(ctx, strlen(s) * 6);
adamc@135	2287
adamc@135	2288 for (; *s; s++) {
adamc@1054	2289 unsigned char c = *s;
adamc@135	2290
adamc@135	2291 switch (c) {
adamc@135	2292 case '<':
adamc@311	2293 uw_write_unsafe(ctx, "<");
adamc@135	2294 break;
adamc@135	2295 case '&':
adamc@311	2296 uw_write_unsafe(ctx, "&");
adamc@135	2297 break;
adamc@135	2298 default:
adamc@1059	2299 uw_writec_unsafe(ctx, c);
adamc@135	2300 }
adamc@135	2301 }
adamc@428	2302
adamc@428	2303 return uw_unit_v;
adamc@135	2304 }
adamc@180	2305
adamc@311	2306 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2307 if (b == uw_Basis_False)
adamc@286	2308 return "False";
adamc@286	2309 else
adamc@286	2310 return "True";
adamc@286	2311 }
adamc@286	2312
adamc@428	2313 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2314 if (b == uw_Basis_False) {
adamc@311	2315 uw_check(ctx, 6);
adamc@666	2316 strcpy(ctx->page.front, "False");
adamc@666	2317 ctx->page.front += 5;
adamc@286	2318 } else {
adamc@311	2319 uw_check(ctx, 5);
adamc@666	2320 strcpy(ctx->page.front, "True");
adamc@666	2321 ctx->page.front += 4;
adamc@286	2322 }
adamc@428	2323
adamc@428	2324 return uw_unit_v;
adamc@286	2325 }
adamc@286	2326
adamc@436	2327 #define TIME_FMT "%x %X"
adamc@438	2328 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2329 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2330
adam@1629	2331 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2332
adamc@436	2333 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2334 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2335 }
adamc@436	2336
adamc@436	2337 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2338 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2339 }
adamc@436	2340
adam@1446	2341 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2342 int len;
adam@1446	2343 char *r;
adam@1446	2344
adam@1446	2345 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2346 r = ctx->heap.front;
adam@1446	2347 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2348 ctx->heap.front += len+1;
adam@1446	2349 return r;
adam@1446	2350 }
adam@1446	2351
adam@1446	2352 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2353 int len;
adam@1446	2354
adam@1446	2355 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2356 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2357 ctx->page.front += len;
phurst@1981	2358
adam@1446	2359 return uw_unit_v;
adam@1446	2360 }
adam@1446	2361
adamc@821	2362 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2363 while (n >= 0) {
adam@1388	2364 if (*s == 0)
adam@1388	2365 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2366
adam@1388	2367 if (n == 0)
adam@1388	2368 return *s;
adam@1388	2369
adam@1388	2370 --n;
adam@1388	2371 ++s;
adam@1388	2372 }
adam@1388	2373
adam@1388	2374 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2375 }
adamc@821	2376
adamc@821	2377 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2378 while (n >= 0) {
adam@1388	2379 if (*s == 0 \|\| n == 0)
adam@1388	2380 return s;
adam@1388	2381
adam@1388	2382 --n;
adam@1388	2383 ++s;
adam@1388	2384 }
adam@1388	2385
adam@1388	2386 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2387 }
adamc@821	2388
adamc@828	2389 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2390 return strlen(s);
adamc@828	2391 }
adamc@828	2392
adam@1388	2393 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2394 while (n > 0) {
adam@1388	2395 if (*s == 0)
adam@1388	2396 return uw_Basis_False;
adam@1388	2397
adam@1388	2398 --n;
adam@1388	2399 ++s;
adam@1388	2400 }
adam@1388	2401
adam@1388	2402 return uw_Basis_True;
adam@1388	2403 }
adam@1388	2404
adamc@829	2405 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2406 return strchr(s, ch);
adamc@829	2407 }
adamc@829	2408
adamc@831	2409 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2410 return strcspn(s, chs);
adamc@831	2411 }
adamc@831	2412
adamc@829	2413 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2414 uw_Basis_string r = strchr(s, ch);
adamc@829	2415 if (r == NULL)
adamc@829	2416 return NULL;
adamc@829	2417 else {
adamc@829	2418 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2419 *nr = r - s;
adamc@829	2420 return nr;
adamc@829	2421 }
adamc@829	2422 }
adamc@829	2423
adam@1390	2424 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2425 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2426 if (r == NULL)
adam@1390	2427 return NULL;
adam@1390	2428 else {
adam@1390	2429 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2430 *nr = r - haystack;
adam@1390	2431 return nr;
adam@1390	2432 }
adam@1390	2433 }
adam@1390	2434
adamc@311	2435 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2436 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2437 char *s;
adamc@180	2438
adamc@311	2439 uw_check_heap(ctx, len);
adamc@180	2440
adamc@666	2441 s = ctx->heap.front;
adamc@180	2442
adamc@180	2443 strcpy(s, s1);
adamc@180	2444 strcat(s, s2);
adamc@666	2445 ctx->heap.front += len;
adamc@180	2446
adamc@180	2447 return s;
adamc@180	2448 }
adamc@278	2449
adamc@829	2450 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2451 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2452
adamc@829	2453 if (start < 0)
adamc@829	2454 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2455 if (len < 0)
adamc@829	2456 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2457 if (start + len > full_len)
adamc@829	2458 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2459
adamc@829	2460 if (start + len == full_len)
adamc@829	2461 return &s[start];
adamc@829	2462 else {
adamc@829	2463 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2464 memcpy(r, s+start, len);
adamc@829	2465 r[len] = 0;
adamc@829	2466 return r;
adamc@829	2467 }
phurst@1981	2468
adamc@829	2469 }
adamc@829	2470
adamc@1023	2471 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2472 char *r;
adamc@1023	2473
adamc@1023	2474 uw_check_heap(ctx, 2);
adamc@1023	2475 r = ctx->heap.front;
adamc@1023	2476 r[0] = ch;
adamc@1023	2477 r[1] = 0;
adamc@1023	2478
adamc@1023	2479 ctx->heap.front += 2;
adamc@1023	2480
adamc@1023	2481 return r;
adamc@1023	2482 }
adamc@1023	2483
adamc@737	2484 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2485 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2486 char *s;
adamc@278	2487
adamc@311	2488 uw_check_heap(ctx, len);
adamc@278	2489
adamc@666	2490 s = ctx->heap.front;
adamc@278	2491
adamc@278	2492 strcpy(s, s1);
adamc@666	2493 ctx->heap.front += len;
adamc@278	2494
adamc@278	2495 return s;
adamc@278	2496 }
adamc@280	2497
adam@1295	2498 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2499 if (ctx->error_message[0]) {
adam@1295	2500 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2501 ctx->error_message[0] = 0;
adam@1295	2502 return s;
adam@1295	2503 } else
adam@1295	2504 return NULL;
adam@1295	2505 }
adam@1295	2506
adamc@737	2507 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2508 if (s1)
adamc@737	2509 return uw_strdup(ctx, s1);
adamc@493	2510 else
adamc@493	2511 return NULL;
adamc@493	2512 }
adamc@493	2513
adamc@742	2514 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2515 char *r = uw_malloc(ctx, len);
adamc@742	2516 memcpy(r, p, len);
adamc@742	2517 return r;
adamc@742	2518 }
adamc@280	2519
adamc@879	2520 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2521
adamc@311	2522 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2523 int len;
adamc@281	2524 char *r;
adamc@281	2525
adamc@311	2526 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2527 r = ctx->heap.front;
adamc@879	2528 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2529 ctx->heap.front += len+1;
adamc@281	2530 return r;
adamc@281	2531 }
adamc@281	2532
adamc@467	2533 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2534 if (n == NULL)
adamc@467	2535 return "NULL";
adamc@467	2536 else
adamc@467	2537 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2538 }
adamc@467	2539
adam@1920	2540 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879	2541
adamc@311	2542 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2543 int len;
adamc@281	2544 char *r;
adamc@281	2545
adamc@311	2546 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2547 r = ctx->heap.front;
adamc@879	2548 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2549 ctx->heap.front += len+1;
adamc@281	2550 return r;
adamc@281	2551 }
adamc@281	2552
adamc@467	2553 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2554 if (n == NULL)
adamc@467	2555 return "NULL";
adamc@467	2556 else
adamc@467	2557 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2558 }
adamc@467	2559
adam@1834	2560 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2561 char *uw_sqlsuffixString = "::text";
adamc@1011	2562 char *uw_sqlsuffixChar = "::char";
adamc@281	2563
adamc@311	2564 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2565 char r, s2;
adamc@280	2566
adamc@879	2567 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2568
adamc@666	2569 r = s2 = ctx->heap.front;
adamc@879	2570 if (uw_Estrings)
adamc@879	2571 *s2++ = 'E';
adamc@280	2572 *s2++ = '\'';
adamc@280	2573
adamc@280	2574 for (; *s; s++) {
adamc@280	2575 char c = *s;
adamc@280	2576
adamc@280	2577 switch (c) {
adamc@280	2578 case '\'':
adamc@885	2579 if (uw_Estrings)
adamc@885	2580 strcpy(s2, "\\'");
adamc@885	2581 else
adamc@885	2582 strcpy(s2, "''");
adamc@280	2583 s2 += 2;
adamc@280	2584 break;
adamc@280	2585 case '\\':
adamc@885	2586 if (uw_Estrings) {
adamc@885	2587 strcpy(s2, "\\\\");
adamc@885	2588 s2 += 2;
adamc@885	2589 } else
adamc@885	2590 *s2++ = '\\';
adamc@280	2591 break;
adamc@280	2592 default:
adamc@1150	2593 if (isprint((int)c))
adamc@280	2594 *s2++ = c;
adamc@879	2595 else if (uw_Estrings) {
adam@1857	2596 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2597 s2 += 4;
adamc@280	2598 }
adamc@879	2599 else
adam@1689	2600 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2601 }
adamc@280	2602 }
adamc@280	2603
adamc@879	2604 *s2++ = '\'';
adamc@879	2605 strcpy(s2, uw_sqlsuffixString);
adamc@879	2606 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2607 return r;
adamc@280	2608 }
adamc@281	2609
adamc@1011	2610 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2611 char r, s2;
adamc@1011	2612
adamc@1011	2613 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2614
adamc@1011	2615 r = s2 = ctx->heap.front;
adamc@1011	2616 if (uw_Estrings)
adamc@1011	2617 *s2++ = 'E';
adamc@1011	2618 *s2++ = '\'';
adamc@1011	2619
adamc@1011	2620 switch (c) {
adamc@1011	2621 case '\'':
adamc@1011	2622 if (uw_Estrings)
adamc@1011	2623 strcpy(s2, "\\'");
adamc@1011	2624 else
adamc@1011	2625 strcpy(s2, "''");
adamc@1011	2626 s2 += 2;
adamc@1011	2627 break;
adamc@1011	2628 case '\\':
adamc@1011	2629 if (uw_Estrings) {
adamc@1011	2630 strcpy(s2, "\\\\");
adamc@1011	2631 s2 += 2;
adamc@1011	2632 } else
adamc@1011	2633 *s2++ = '\\';
adamc@1011	2634 break;
adamc@1011	2635 default:
adamc@1150	2636 if (isprint((int)c))
adamc@1011	2637 *s2++ = c;
adamc@1011	2638 else if (uw_Estrings) {
adam@1857	2639 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2640 s2 += 4;
adamc@1011	2641 }
adamc@1011	2642 else
adamc@1011	2643 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2644 }
adamc@1011	2645
adamc@1011	2646 *s2++ = '\'';
adamc@1011	2647 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2648 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2649 return r;
adamc@1011	2650 }
adamc@1011	2651
adamc@879	2652 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2653
adam@1867	2654 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2655 char r, s2;
adamc@737	2656 size_t i;
adamc@737	2657
adam@1867	2658 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2659
adamc@737	2660 r = s2 = ctx->heap.front;
adamc@879	2661 if (uw_Estrings)
adamc@879	2662 *s2++ = 'E';
adam@1867	2663 else
adam@1867	2664 *s2++ = 'X';
adamc@737	2665 *s2++ = '\'';
adamc@737	2666
adamc@737	2667 for (i = 0; i < b.size; ++i) {
adam@1867	2668 unsigned char c = b.data[i];
adam@1867	2669
adam@1867	2670 if (uw_Estrings) {
adam@1867	2671 switch (c) {
adam@1867	2672 case '\'':
adamc@885	2673 strcpy(s2, "\\'");
adam@1867	2674 s2 += 2;
adam@1867	2675 break;
adam@1867	2676 case '\\':
adamc@885	2677 strcpy(s2, "\\\\\\\\");
adamc@885	2678 s2 += 4;
adam@1867	2679 break;
adam@1867	2680 default:
adam@1867	2681 if (isprint((int)c))
adam@1867	2682 *s2++ = c;
adam@1867	2683 else {
adam@1867	2684 sprintf(s2, "\\\\%03o", c);
adam@1867	2685 s2 += 5;
adam@1867	2686 }
adamc@737	2687 }
adam@1867	2688 } else {
adam@1867	2689 sprintf(s2, "%02X", c);
adam@1867	2690 s2 += 2;
adamc@737	2691 }
phurst@1981	2692 }
adamc@737	2693
adamc@879	2694 *s2++ = '\'';
adamc@879	2695 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2696 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2697 return r;
adamc@737	2698 }
adamc@737	2699
adamc@682	2700 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2701 int len;
adamc@682	2702 char *r;
adamc@682	2703 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2704
adamc@682	2705 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2706 r = ctx->heap.front;
adamc@879	2707 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2708 ctx->heap.front += len+1;
adamc@682	2709 return r;
adamc@682	2710 }
adamc@682	2711
adamc@682	2712 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2713 int len;
adamc@682	2714 char *r;
adamc@682	2715 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2716
adamc@682	2717 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2718 r = ctx->heap.front;
adamc@682	2719 sprintf(r, "%lld%n", combo, &len);
adamc@682	2720 ctx->heap.front += len+1;
adamc@682	2721 return r;
adamc@682	2722 }
adamc@682	2723
adamc@879	2724 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2725
adamc@682	2726 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2727 int len;
adamc@682	2728 char *r;
adamc@682	2729
adamc@682	2730 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2731 r = ctx->heap.front;
adamc@879	2732 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2733 ctx->heap.front += len+1;
adamc@682	2734 return r;
adamc@682	2735 }
adamc@682	2736
adamc@682	2737 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2738 int len;
adamc@682	2739 char *r;
adamc@682	2740
adamc@682	2741 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2742 r = ctx->heap.front;
adamc@682	2743 sprintf(r, "%u%n", cli, &len);
adamc@682	2744 ctx->heap.front += len+1;
adamc@682	2745 return r;
adamc@682	2746 }
adamc@682	2747
adamc@467	2748 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2749 if (s == NULL)
adamc@467	2750 return "NULL";
adamc@467	2751 else
adamc@467	2752 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2753 }
adamc@467	2754
adamc@311	2755 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2756 if (b == uw_Basis_False)
adamc@281	2757 return "FALSE";
adamc@281	2758 else
adamc@281	2759 return "TRUE";
adamc@281	2760 }
adamc@282	2761
adamc@467	2762 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2763 if (b == NULL)
adamc@467	2764 return "NULL";
adamc@467	2765 else
adamc@467	2766 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2767 }
adamc@467	2768
adamc@439	2769 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2770 size_t len;
adamc@682	2771 char r, s;
adam@1392	2772 struct tm stm = {};
adam@1392	2773 stm.tm_isdst = -1;
adamc@682	2774
adam@1365	2775 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2776 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2777 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2778 if (uw_sql_type_annotations) {
adam@1834	2779 if (t.microseconds) {
adam@1834	2780 r = uw_malloc(ctx, len + 21);
adam@1834	2781 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2782 } else {
adam@1834	2783 r = uw_malloc(ctx, len + 14);
adam@1834	2784 sprintf(r, "'%s'::timestamp", s);
adam@1834	2785 }
adam@1367	2786 } else {
adam@1834	2787 r = uw_malloc(ctx, len + 3);
adam@1834	2788 sprintf(r, "'%s'", s);
adam@1367	2789 }
adamc@682	2790 return r;
adamc@682	2791 } else
adamc@682	2792 return "<Invalid time>";
adamc@682	2793 }
adamc@682	2794
adamc@682	2795 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2796 size_t len;
adamc@439	2797 char *r;
adam@1392	2798 struct tm stm = {};
adam@1392	2799 stm.tm_isdst = -1;
adamc@439	2800
adam@1365	2801 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2802 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2803 r = ctx->heap.front;
adamc@439	2804 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2805 ctx->heap.front += len+1;
adamc@439	2806 return r;
adamc@439	2807 } else
adamc@439	2808 return "<Invalid time>";
adamc@439	2809 }
adamc@439	2810
adam@1364	2811 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2812 size_t len;
adam@1364	2813 char *r;
adam@1392	2814 struct tm stm = {};
adam@1392	2815 stm.tm_isdst = -1;
adam@1364	2816
adam@1365	2817 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2818 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2819 r = ctx->heap.front;
adam@1365	2820 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2821 ctx->heap.front += len;
adam@1365	2822 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2823 ctx->heap.front += 8;
adam@1364	2824 return r;
adam@1364	2825 } else
adam@1364	2826 return "<Invalid time>";
adam@1364	2827 }
adam@1364	2828
adamc@467	2829 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2830 if (t == NULL)
adamc@467	2831 return "NULL";
adamc@467	2832 else
adamc@467	2833 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2834 }
adamc@467	2835
adamc@311	2836 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2837 static uw_Basis_int true = 1;
adamc@311	2838 static uw_Basis_int false = 0;
adamc@282	2839
adamc@311	2840 if (b == uw_Basis_False)
adamc@282	2841 return (char *)&false;
adamc@282	2842 else
adamc@282	2843 return (char *)&true;
adamc@282	2844 }
adamc@284	2845
adamc@311	2846 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2847 int len;
adamc@284	2848 char *r;
adamc@284	2849
adamc@311	2850 uw_check_heap(ctx, INTS_MAX);
adamc@666	2851 r = ctx->heap.front;
adamc@284	2852 sprintf(r, "%lld%n", n, &len);
adamc@666	2853 ctx->heap.front += len+1;
adamc@284	2854 return r;
adamc@284	2855 }
adamc@285	2856
adamc@311	2857 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2858 int len;
adamc@285	2859 char *r;
adamc@285	2860
adamc@311	2861 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2862 r = ctx->heap.front;
adamc@285	2863 sprintf(r, "%g%n", n, &len);
adamc@666	2864 ctx->heap.front += len+1;
adamc@285	2865 return r;
adamc@285	2866 }
adamc@285	2867
adamc@821	2868 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2869 char *r = uw_malloc(ctx, 2);
adamc@821	2870 r[0] = ch;
adamc@821	2871 r[1] = 0;
adamc@821	2872 return r;
adamc@821	2873 }
adamc@821	2874
adamc@311	2875 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2876 if (b == uw_Basis_False)
adamc@285	2877 return "False";
adamc@285	2878 else
adamc@285	2879 return "True";
adamc@285	2880 }
adamc@288	2881
adam@1359	2882 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2883 size_t len;
adam@1352	2884 char *r;
adam@1392	2885 struct tm stm = {};
adam@1392	2886 stm.tm_isdst = -1;
adam@1352	2887
adam@1365	2888 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2889 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2890 r = ctx->heap.front;
adam@1352	2891 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2892 ctx->heap.front += len+1;
adam@1352	2893 return r;
adam@1352	2894 } else
adam@1352	2895 return "<Invalid time>";
adam@1352	2896 }
adam@1352	2897
adam@1629	2898 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2899 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2900 }
adam@1629	2901
adamc@311	2902 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2903 char *endptr;
adamc@311	2904 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2905
adamc@288	2906 if (s != '\0' && endptr == '\0') {
adamc@311	2907 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2908 *r = n;
adamc@288	2909 return r;
adamc@288	2910 } else
adamc@288	2911 return NULL;
adamc@288	2912 }
adamc@289	2913
adamc@311	2914 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2915 char *endptr;
adamc@311	2916 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2917
adamc@289	2918 if (s != '\0' && endptr == '\0') {
adamc@311	2919 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2920 *r = n;
adamc@289	2921 return r;
adamc@289	2922 } else
adamc@289	2923 return NULL;
adamc@289	2924 }
adamc@289	2925
adamc@821	2926 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2927 if (s[0] == 0) {
adamc@821	2928 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2929 r[0] = 0;
adamc@821	2930 return r;
adamc@821	2931 } else if (s[1] != 0)
adamc@821	2932 return NULL;
adamc@821	2933 else {
adamc@821	2934 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2935 r[0] = s[0];
adamc@821	2936 return r;
adamc@821	2937 }
adamc@821	2938 }
adamc@821	2939
adamc@311	2940 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2941 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2942 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2943
adamc@289	2944 if (!strcasecmp (s, "True"))
adamc@289	2945 return &true;
adamc@289	2946 else if (!strcasecmp (s, "False"))
adamc@289	2947 return &false;
adamc@289	2948 else
adamc@289	2949 return NULL;
adamc@289	2950 }
adamc@292	2951
adamc@436	2952 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2953 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2954 struct tm stm = {};
adam@1392	2955 stm.tm_isdst = -1;
adamc@436	2956
adamc@439	2957 if (dot) {
adamc@439	2958 *dot = 0;
adamc@439	2959 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2960 *dot = '.';
adamc@439	2961 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2962 r->seconds = mktime(&stm);
adam@1365	2963 r->microseconds = 0;
adamc@439	2964 return r;
adamc@439	2965 }
adamc@439	2966 else {
adamc@439	2967 *dot = '.';
adamc@439	2968 return NULL;
adamc@439	2969 }
adamc@436	2970 }
adamc@439	2971 else {
adam@2072	2972 if (strptime(s, ctx->app->time_format, &stm) == end) {
adamc@439	2973 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2974 r->seconds = mktime(&stm);
adam@1365	2975 r->microseconds = 0;
adamc@439	2976 return r;
adam@2072	2977 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@2072	2978 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@2072	2979 r->seconds = mktime(&stm);
adam@2072	2980 r->microseconds = 0;
adam@2072	2981 return r;
adam@2072	2982 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2983 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2984 r->seconds = mktime(&stm);
adam@1365	2985 r->microseconds = 0;
adamc@439	2986 return r;
adam@1632	2987 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2988 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2989 r->seconds = mktime(&stm);
adam@1632	2990 r->microseconds = 0;
adam@1632	2991 return r;
adamc@439	2992 }
adamc@439	2993 else
adamc@439	2994 return NULL;
adamc@439	2995 }
adamc@436	2996 }
adamc@436	2997
adam@1352	2998 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2999 char *end = strchr(s, 0);
adam@1374	3000 struct tm stm = {};
adam@1392	3001 stm.tm_isdst = -1;
adam@1352	3002
adam@1352	3003 if (strptime(s, fmt, &stm) == end) {
adam@1352	3004 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	3005 r->seconds = mktime(&stm);
adam@1365	3006 r->microseconds = 0;
adam@1352	3007 return r;
adam@1352	3008 }
adam@1352	3009 else
adam@1352	3010 return NULL;
adam@1352	3011 }
adam@1352	3012
adamc@311	3013 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	3014 char *endptr;
adamc@311	3015 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	3016
adamc@292	3017 if (s != '\0' && endptr == '\0')
adamc@292	3018 return n;
adamc@292	3019 else
adam@1444	3020 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	3021 }
adamc@293	3022
adamc@682	3023 #include <errno.h>
adamc@682	3024
adamc@678	3025 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	3026 unsigned long long n;
adamc@682	3027
adamc@682	3028 if (sscanf(s, "%llu", &n) < 1)
adam@1444	3029 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	3030 else {
adamc@682	3031 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	3032 return ch;
adamc@682	3033 }
adamc@682	3034 }
adamc@682	3035
adamc@682	3036 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	3037 char *endptr;
adamc@682	3038 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	3039
adamc@678	3040 if (s != '\0' && endptr == '\0')
adamc@678	3041 return n;
adamc@678	3042 else
adam@1444	3043 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	3044 }
adamc@678	3045
adamc@311	3046 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	3047 char *endptr;
adamc@311	3048 uw_Basis_float n = strtod(s, &endptr);
adamc@293	3049
adamc@293	3050 if (s != '\0' && endptr == '\0')
adamc@293	3051 return n;
adamc@293	3052 else
adam@1444	3053 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3054 }
adamc@293	3055
adamc@821	3056 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	3057 if (s[0] == 0)
adamc@821	3058 return 0;
adamc@821	3059 else if (s[1] != 0)
adam@1444	3060 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	3061 else
adamc@821	3062 return s[0];
adamc@821	3063 }
adamc@821	3064
adamc@311	3065 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	3066 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	3067 return uw_Basis_True;
adamc@296	3068 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	3069 return uw_Basis_False;
adamc@293	3070 else
adam@1444	3071 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3072 }
adamc@436	3073
adam@1352	3074 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	3075 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	3076 struct tm stm = {};
adam@1392	3077 stm.tm_isdst = -1;
adam@1352	3078
adam@1352	3079 if (dot) {
adam@1352	3080 *dot = 0;
adam@1352	3081 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	3082 *dot = '.';
adam@1410	3083 char usec[] = "000000";
adam@1410	3084 int len = strlen(dot+1);
adam@1410	3085 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	3086 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	3087 return r;
adam@1352	3088 }
adam@1352	3089 else {
adam@1352	3090 *dot = '.';
adam@1444	3091 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3092 }
adam@1352	3093 }
adam@1352	3094 else {
adam@1352	3095 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3096 uw_Basis_time r = { mktime(&stm) };
adam@1365	3097 return r;
adam@1352	3098 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3099 uw_Basis_time r = { mktime(&stm) };
adam@1365	3100 return r;
adam@1352	3101 } else
adam@1444	3102 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3103 }
adam@1352	3104 }
adam@1352	3105
adamc@436	3106 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	3107 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	3108 struct tm stm = {};
adam@1392	3109 stm.tm_isdst = -1;
adamc@436	3110
adamc@438	3111 if (dot) {
adamc@438	3112 *dot = 0;
adamc@438	3113 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	3114 *dot = '.';
adam@1365	3115 {
adam@1365	3116 uw_Basis_time r = { mktime(&stm) };
adam@1365	3117 return r;
adam@1365	3118 }
adamc@438	3119 }
adamc@438	3120 else {
adamc@438	3121 *dot = '.';
adam@1444	3122 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3123 }
adamc@438	3124 }
adamc@438	3125 else {
adam@2072	3126 if (strptime(s, ctx->app->time_format, &stm) == end) {
adam@2072	3127 uw_Basis_time r = { mktime(&stm) };
adam@2072	3128 return r;
adam@2072	3129 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3130 uw_Basis_time r = { mktime(&stm) };
adam@1365	3131 return r;
adam@1365	3132 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3133 uw_Basis_time r = { mktime(&stm) };
adam@1365	3134 return r;
adam@1632	3135 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3136 uw_Basis_time r = { mktime(&stm) };
adam@1632	3137 return r;
adam@1365	3138 } else
adam@1444	3139 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3140 }
adamc@436	3141 }
adamc@457	3142
adam@1352	3143 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3144 char *end = strchr(s, 0);
adamc@939	3145 struct tm stm = {};
adam@1392	3146 stm.tm_isdst = -1;
adamc@939	3147
adam@1365	3148 if (strptime(s, fmt, &stm) == end) {
adam@1365	3149 uw_Basis_time r = { mktime(&stm) };
adam@1365	3150 return r;
adam@1365	3151 } else
adam@1444	3152 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3153 }
adamc@939	3154
adamc@742	3155 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3156 char *r = ctx->heap.front;
adamc@742	3157 uw_Basis_blob b = {len, r};
adamc@742	3158
adamc@742	3159 uw_check_heap(ctx, len);
adamc@742	3160
adam@1992	3161 if (s[0] == '\\' && s[1] == 'x') {
adam@1992	3162 s += 2;
adam@1992	3163
adam@1992	3164 while (*s) {
adam@1992	3165 int n;
adam@1992	3166 sscanf(s, "%02x", &n);
adam@1992	3167 *r++ = n;
adam@1992	3168 s += 2;
adam@1992	3169 }
adam@1992	3170 } else {
adam@1992	3171 while (*s) {
adam@1992	3172 if (s[0] == '\\') {
adam@1992	3173 if (s[1] == '\\') {
adam@1992	3174 *r++ = '\\';
adam@1992	3175 s += 2;
adam@1992	3176 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adam@1992	3177 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adam@1992	3178 s += 4;
adam@1992	3179 }
adam@1992	3180 else {
adam@1992	3181 *r++ = '\\';
adam@1992	3182 ++s;
adam@1992	3183 }
adam@1992	3184 } else {
adam@1992	3185 *r++ = s[0];
adamc@742	3186 ++s;
adamc@742	3187 }
adamc@742	3188 }
adamc@742	3189 }
adamc@742	3190
adamc@742	3191 b.size = r - ctx->heap.front;
adamc@742	3192 ctx->heap.front = r;
adam@1992	3193
adamc@742	3194 return b;
adamc@742	3195 }
adamc@742	3196
adam@1402	3197 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3198
adamc@463	3199 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3200 int len = strlen(c);
adamc@854	3201 char *p = ctx->outHeaders.start;
adamc@474	3202
adamc@1134	3203 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3204 char *p2;
adamc@474	3205 p += 13;
adamc@474	3206 p2 = strchr(p, '=');
adamc@474	3207
adamc@474	3208 if (p2) {
adamc@474	3209 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3210
adamc@474	3211 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3212 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3213 return NULL;
adamc@1052	3214 else {
adamc@1052	3215 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3216 memcpy(ret, p2+1, sz);
adamc@1052	3217 ret[sz] = 0;
adamc@1052	3218 return ret;
adamc@1052	3219 }
adamc@474	3220 }
adamc@474	3221 }
adamc@474	3222 }
adamc@463	3223
adamc@1134	3224 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3225 char *p2;
adamc@1051	3226
adamc@854	3227 while (1) {
adamc@1051	3228 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3229 if ((p2 = strchr(p, ';'))) {
adamc@1051	3230 size_t n = p2 - (p + len);
adamc@1051	3231 char *r = uw_malloc(ctx, n);
adamc@1051	3232 memcpy(r, p + 1 + len, n-1);
adamc@1051	3233 r[n-1] = 0;
adamc@1051	3234 return r;
adamc@1051	3235 } else
adamc@1051	3236 return p + 1 + len;
adamc@1134	3237 } else if ((p = strchr(p, ';')))
adamc@854	3238 p += 2;
adamc@463	3239 else
adamc@463	3240 return NULL;
adamc@463	3241 }
adamc@463	3242 }
adamc@792	3243
adamc@792	3244 return NULL;
adamc@457	3245 }
adamc@462	3246
adam@1877	3247 static void set_cookie(uw_context ctx) {
adam@1877	3248 if (ctx->usedSig)
adam@1877	3249 ctx->needsResig = 1;
adam@1877	3250 }
adam@1877	3251
adamc@1050	3252 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	3253 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3254 uw_write_header(ctx, c);
adamc@462	3255 uw_write_header(ctx, "=");
adamc@462	3256 uw_write_header(ctx, v);
adamc@466	3257 uw_write_header(ctx, "; path=");
adamc@466	3258 uw_write_header(ctx, prefix);
adamc@1050	3259 if (expires) {
adamc@1050	3260 char formatted[30];
adam@1392	3261 struct tm tm = {};
adam@1392	3262 tm.tm_isdst = -1;
adamc@1050	3263
adam@1365	3264 gmtime_r(&expires->seconds, &tm);
adamc@1050	3265
adamc@1050	3266 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3267
adamc@1050	3268 uw_write_header(ctx, "; expires=");
adamc@1050	3269 uw_write_header(ctx, formatted);
adamc@1050	3270 }
adamc@1050	3271 if (secure)
adamc@1050	3272 uw_write_header(ctx, "; secure");
adamc@462	3273 uw_write_header(ctx, "\r\n");
adam@1877	3274 set_cookie(ctx);
adamc@462	3275
adamc@462	3276 return uw_unit_v;
adamc@462	3277 }
adamc@667	3278
adamc@1050	3279 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3280 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3281 uw_write_header(ctx, c);
adamc@1050	3282 uw_write_header(ctx, "=; path=");
adamc@1050	3283 uw_write_header(ctx, prefix);
adamc@1052	3284 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3285 set_cookie(ctx);
adamc@1050	3286
adamc@1050	3287 return uw_unit_v;
adamc@1050	3288 }
adamc@1050	3289
adamc@1113	3290 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3291
adamc@682	3292 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3293 unsigned i;
adamc@682	3294 delta *d;
adamc@671	3295
adamc@682	3296 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3297 if (ctx->deltas[i].client == client)
adamc@682	3298 return &ctx->deltas[i];
adamc@671	3299
adamc@682	3300 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3301 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3302 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3303
adamc@682	3304 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3305 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3306 }
adamc@671	3307
adamc@682	3308 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3309 d->client = client;
adam@1369	3310 uw_buffer_reset(&d->msgs);
adamc@682	3311 return d;
adamc@671	3312 }
adamc@671	3313
adamc@668	3314 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3315 if (ctx->client == NULL)
adamc@682	3316 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3317
adamc@682	3318 return new_channel(ctx->client);
adamc@668	3319 }
adamc@668	3320
adamc@668	3321 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3322 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3323 size_t len;
adamc@682	3324 int preLen;
adamc@682	3325 char pre[INTS_MAX + 2];
adamc@668	3326
adamc@682	3327 len = strlen(msg);
adamc@682	3328
adamc@682	3329 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3330
adam@1369	3331 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3332 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3333 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3334
adamc@671	3335 return uw_unit_v;
adamc@668	3336 }
adamc@671	3337
adam@1327	3338 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3339 int i;
adamc@1131	3340 cleanup *cl;
adamc@1131	3341
adamc@1131	3342 if (ctx->client)
adamc@1131	3343 release_client(ctx->client);
adamc@1131	3344
adamc@1131	3345 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3346 cl->func(cl->arg);
adamc@1131	3347
adamc@1131	3348 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3349
adamc@1131	3350 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3351 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3352 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3353
adamc@1131	3354 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3355 if (ctx->transactionals[i].free)
adam@1327	3356 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3357
adam@1941	3358 if (ctx->app && ctx->transaction_started) {
adam@1941	3359 ctx->transaction_started = 0;
adam@1941	3360 return ctx->app->db_rollback(ctx);
adam@1941	3361 } else
adam@1941	3362 return 0;
adamc@1131	3363 }
adamc@1131	3364
adam@1956	3365 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	3366 const char uw_begin_html5[] = "<!DOCTYPE html><html>";
adam@1728	3367
adam@1877	3368 extern int uw_hash_blocksize;
adam@1877	3369
adam@1877	3370 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3371
adam@1877	3372 static char find_sig(char haystack) {
adam@1877	3373 int i;
adam@1877	3374 char *s = strstr(haystack, sig_intro);
adam@1877	3375
adam@1877	3376 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3377 return NULL;
phurst@1981	3378
adam@1877	3379 s += sizeof sig_intro - 1;
adam@1877	3380
adam@1877	3381 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3382 if (!isxdigit((int)s[i]))
adam@1877	3383 return NULL;
adam@1877	3384
adam@1877	3385 if (s[i] != '"')
adam@1877	3386 return NULL;
adam@1877	3387
adam@1877	3388 return s;
adam@1877	3389 }
adam@1877	3390
adam@2033	3391 static pthread_mutex_t message_send_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2033	3392
adam@1938	3393 int uw_commit(uw_context ctx) {
adamc@1104	3394 int i;
adam@1877	3395 char *sig;
adamc@1104	3396
adamc@1131	3397 if (uw_has_error(ctx)) {
adam@1327	3398 uw_rollback(ctx, 0);
adam@1938	3399 return 0;
adamc@1131	3400 }
adamc@1131	3401
adamc@1104	3402 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3403 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3404 if (ctx->transactionals[i].commit) {
adamc@1083	3405 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3406 if (uw_has_error(ctx)) {
adam@1327	3407 uw_rollback(ctx, 0);
adam@1938	3408 return 0;
adamc@1131	3409 }
adamc@1131	3410 }
adamc@771	3411
adam@2033	3412 // Here's an important lock to provide the abstraction that all messages from one transaction are sent as an atomic unit.
adam@2033	3413 if (ctx->used_deltas > 0)
adam@2033	3414 pthread_mutex_lock(&message_send_mutex);
adam@2033	3415
adam@2000	3416 if (ctx->transaction_started) {
adam@2000	3417 int code = ctx->app->db_commit(ctx);
adam@2000	3418
adam@2000	3419 if (code) {
adam@2033	3420 if (ctx->used_deltas > 0)
adam@2033	3421 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3422
adam@2000	3423 if (ctx->client)
adam@2000	3424 release_client(ctx->client);
adam@2000	3425
adam@2000	3426 if (code == -1) {
adam@2000	3427 // This case is for a serialization failure, which is not really an "error."
adam@2000	3428 // The transaction will restart, so we should rollback any transactionals
adam@2000	3429 // that triggered above.
adam@2000	3430
adam@2000	3431 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3432 if (ctx->transactionals[i].rollback != NULL)
adam@2000	3433 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2000	3434
adam@2000	3435 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3436 if (ctx->transactionals[i].free)
adam@2000	3437 ctx->transactionals[i].free(ctx->transactionals[i].data, 1);
adam@2000	3438
grrwlf@2030	3439 return 1;
adam@2000	3440 }
adam@2000	3441
adam@2000	3442 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3443 if (ctx->transactionals[i].free)
adam@2000	3444 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3445
adam@2000	3446 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@2000	3447 return 0;
adam@2000	3448 }
adam@2000	3449 }
adam@2000	3450
adamc@1104	3451 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3452 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3453 if (ctx->transactionals[i].commit) {
adamc@1083	3454 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3455 if (uw_has_error(ctx)) {
adam@2033	3456 if (ctx->used_deltas > 0)
adam@2033	3457 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3458
adam@2033	3459 if (ctx->client)
adam@2033	3460 release_client(ctx->client);
adam@2033	3461
adam@2033	3462 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3463 if (ctx->transactionals[i].rollback != NULL)
adam@2033	3464 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2033	3465
adam@2033	3466 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3467 if (ctx->transactionals[i].free)
adam@2033	3468 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3469
adam@1938	3470 return 0;
adamc@1131	3471 }
adamc@1131	3472 }
adamc@1131	3473
adamc@682	3474 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3475 delta *d = &ctx->deltas[i];
adamc@682	3476 client *c = find_client(d->client);
adamc@682	3477
adam@1551	3478 assert (c != NULL);
adam@1551	3479 assert(c->mode == USED);
adamc@682	3480
adam@1447	3481 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3482 }
adamc@682	3483
adam@2033	3484 if (ctx->used_deltas > 0)
adam@2033	3485 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3486
adamc@682	3487 if (ctx->client)
adamc@685	3488 release_client(ctx->client);
adamc@771	3489
adamc@1104	3490 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3491 if (ctx->transactionals[i].free)
adam@1327	3492 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3493
vshabanoff@1726	3494 uw_check(ctx, 1);
vshabanoff@1726	3495 *ctx->page.front = 0;
adam@1413	3496
adam@1956	3497 if (!ctx->returning_indirectly
adam@1956	3498 && (ctx->app->is_html5
adam@1956	3499 ? !strncmp(ctx->page.start, uw_begin_html5, sizeof uw_begin_html5 - 1)
adam@1956	3500 : !strncmp(ctx->page.start, uw_begin_xhtml, sizeof uw_begin_xhtml - 1))) {
adam@1728	3501 char *s;
adam@1728	3502
adam@1728	3503 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1956	3504 s = ctx->page.start + (ctx->app->is_html5 ? sizeof uw_begin_html5 - 1 : sizeof uw_begin_xhtml - 1);
adam@1728	3505 s = strchr(s, '<');
adam@1728	3506 if (s == NULL) {
adam@1728	3507 // Weird. Document has no tags!
adam@1728	3508
adam@1728	3509 uw_write(ctx, "<head></head><body></body>");
adam@1728	3510 uw_check(ctx, 1);
adam@1728	3511 *ctx->page.front = 0;
adam@1728	3512 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3513 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3514
adam@1729	3515 // Any freeform JavaScript to include?
adam@1729	3516 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3517 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3518 size_t lenP = lenH + 40 + len;
adam@1729	3519 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3520
adam@1729	3521 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3522 start += ctx->page.start - oldPage;
adam@1729	3523 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3524 ctx->page.front += lenP;
adam@1729	3525 memcpy(start, ctx->script_header, lenH);
adam@1729	3526 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3527 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3528 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3529 } else {
adam@1729	3530 size_t lenH = strlen(ctx->script_header);
adam@1729	3531 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3532
adam@1729	3533 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3534 start += ctx->page.start - oldPage;
adam@1729	3535 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3536 ctx->page.front += lenH;
adam@1729	3537 memcpy(start, ctx->script_header, lenH);
adam@1729	3538 }
adam@1728	3539 } else {
adam@1728	3540 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3541
adam@1729	3542 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3543 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3544 size_t lenP = lenH + 53 + len;
adam@1729	3545 char start = s, oldPage = ctx->page.start;
adam@1729	3546
adam@1729	3547 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3548 start += ctx->page.start - oldPage;
adam@1729	3549 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3550 ctx->page.front += lenP;
adam@1729	3551 memcpy(start, "<head>", 6);
adam@1729	3552 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3553 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3554 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3555 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3556 } else {
adam@1729	3557 size_t lenH = strlen(ctx->script_header);
adam@1729	3558 size_t lenP = lenH + 13;
adam@1729	3559 char start = s, oldPage = ctx->page.start;
adam@1729	3560
adam@1729	3561 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3562 start += ctx->page.start - oldPage;
adam@1729	3563 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3564 ctx->page.front += lenP;
adam@1729	3565 memcpy(start, "<head>", 6);
adam@1729	3566 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3567 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3568 }
adamc@916	3569 }
adamc@916	3570 }
adam@1877	3571
adam@1877	3572 if (ctx->needsResig) {
adam@1877	3573 sig = find_sig(ctx->page.start);
adam@1877	3574 if (sig) {
adam@1877	3575 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3576
adam@1877	3577 do {
adam@1877	3578 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3579 sig = find_sig(sig);
adam@1877	3580 } while (sig);
adam@1877	3581 }
adam@1877	3582 }
adam@1938	3583
adam@1938	3584 return 0;
adamc@671	3585 }
adamc@671	3586
adamc@683	3587
adamc@1113	3588 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3589
adam@2001	3590 int uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3591 uw_callback_with_retry free) {
adamc@771	3592 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3593 if (ctx->used_transactionals+1 > uw_transactionals_max)
adam@2001	3594 // Exceeded limit on number of transactionals.
adam@2001	3595 return -1;
adamc@1084	3596 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3597 ++ctx->n_transactionals;
adamc@771	3598 }
adamc@771	3599
adamc@771	3600 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3601 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3602 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3603 ctx->transactionals[ctx->used_transactionals++].free = free;
adam@2001	3604
adam@2001	3605 return 0;
adamc@771	3606 }
adamc@771	3607
adamc@683	3608
adamc@683	3609 // "Garbage collection"
adamc@683	3610
adamc@1121	3611 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3612 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3613
adamc@1121	3614 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3615 int r = setjmp(ctx->jmp_buf);
adamc@683	3616
adamc@1121	3617 if (r == 0)
adamc@1121	3618 uw_do_expunge(ctx, cli, data);
adamc@1121	3619 else
adamc@1121	3620 ctx->app->db_rollback(ctx);
adamc@1121	3621
adamc@1121	3622 uw_post_expunge(ctx, data);
adamc@683	3623
adamc@683	3624 return r;
adamc@683	3625 }
adamc@683	3626
adamc@683	3627 void uw_prune_clients(uw_context ctx) {
adamc@683	3628 client c, next, *prev = NULL;
adamc@683	3629 time_t cutoff;
adamc@683	3630
adamc@1094	3631 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3632
adamc@683	3633 pthread_mutex_lock(&clients_mutex);
adam@1707	3634 pruning_thread = pthread_self();
adam@1707	3635 pruning_thread_initialized = 1;
adamc@683	3636
adamc@683	3637 for (c = clients_used; c; c = next) {
adamc@683	3638 next = c->next;
adamc@683	3639 pthread_mutex_lock(&c->lock);
adamc@685	3640 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3641 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3642 if (prev)
adamc@683	3643 prev->next = next;
adamc@683	3644 else
adamc@683	3645 clients_used = next;
adamc@683	3646 while (fk == UNLIMITED_RETRY) {
adam@1941	3647 uw_reset(ctx);
adamc@1121	3648 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3649 if (fk == UNLIMITED_RETRY)
adamc@684	3650 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3651 }
adamc@684	3652 if (fk == SUCCESS)
adamc@684	3653 free_client(c);
adamc@1121	3654 else
adamc@856	3655 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3656 }
adamc@683	3657 else
adamc@683	3658 prev = c;
adamc@683	3659 pthread_mutex_unlock(&c->lock);
adamc@683	3660 }
adamc@683	3661
adamc@683	3662 pthread_mutex_unlock(&clients_mutex);
adamc@683	3663 }
adamc@687	3664
adamc@687	3665 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3666 int r = setjmp(ctx->jmp_buf);
adamc@687	3667
adamc@687	3668 if (r == 0) {
adam@1936	3669 uw_ensure_transaction(ctx);
adamc@1094	3670 ctx->app->initializer(ctx);
adamc@1094	3671 if (ctx->app->db_commit(ctx))
adamc@687	3672 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3673 }
adamc@687	3674
adamc@687	3675 return r;
adamc@687	3676 }
adamc@717	3677
adamc@1065	3678 static int url_bad(uw_Basis_string s) {
adamc@1065	3679 for (; *s; ++s)
adamc@1153	3680 if (!isgraph((int)*s))
adamc@1065	3681 return 1;
adamc@1065	3682
adamc@1065	3683 return 0;
adamc@1065	3684 }
adamc@1065	3685
adamc@717	3686 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3687 if (url_bad(s))
adamc@1065	3688 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3689 if (ctx->app->check_url(s))
adamc@770	3690 return s;
adamc@770	3691 else
adamc@770	3692 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3693 }
adamc@734	3694
adamc@770	3695 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3696 if (url_bad(s))
adamc@1065	3697 return NULL;
adamc@1094	3698 if (ctx->app->check_url(s))
adamc@770	3699 return s;
adamc@770	3700 else
adamc@770	3701 return NULL;
adamc@770	3702 }
adamc@770	3703
adam@1465	3704 static int mime_format(const char *s) {
adamc@770	3705 for (; *s; ++s)
grrwlf@2024	3706 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.' && *s != '+')
adamc@770	3707 return 0;
adamc@770	3708
adamc@770	3709 return 1;
adamc@770	3710 }
adamc@770	3711
adamc@741	3712 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3713 if (!mime_format(s))
adamc@770	3714 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3715
adamc@1094	3716 if (ctx->app->check_mime(s))
adamc@770	3717 return s;
adamc@770	3718 else
adamc@770	3719 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3720 }
adamc@770	3721
adamc@770	3722 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3723 if (!mime_format(s))
adamc@770	3724 return NULL;
adamc@770	3725
adamc@1094	3726 if (ctx->app->check_mime(s))
adamc@770	3727 return s;
adamc@770	3728 else
adamc@770	3729 return NULL;
adamc@741	3730 }
adamc@741	3731
adam@1465	3732 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3733 if (!mime_format(s))
adam@1465	3734 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3735
adam@1465	3736 if (ctx->app->check_requestHeader(s))
adam@1465	3737 return s;
adam@1465	3738 else
adam@1465	3739 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3740 }
adam@1465	3741
adam@1465	3742 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3743 if (!mime_format(s))
adam@1465	3744 return NULL;
adam@1465	3745
adam@1465	3746 if (ctx->app->check_requestHeader(s))
adam@1465	3747 return s;
adam@1465	3748 else
adam@1465	3749 return NULL;
adam@1465	3750 }
adam@1465	3751
adam@1465	3752 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3753 if (!mime_format(s))
adam@1465	3754 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3755
adam@1465	3756 if (ctx->app->check_responseHeader(s))
adam@1465	3757 return s;
adam@1465	3758 else
adam@1465	3759 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3760 }
adam@1465	3761
adam@1799	3762 static int envVar_format(const char *s) {
adam@1799	3763 for (; *s; ++s)
adam@1799	3764 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3765 return 0;
adam@1799	3766
adam@1799	3767 return 1;
adam@1799	3768 }
adam@1799	3769
adam@1465	3770 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3771 if (!envVar_format(s))
adam@1465	3772 return NULL;
adam@1465	3773
adam@1465	3774 if (ctx->app->check_responseHeader(s))
adam@1465	3775 return s;
adam@1465	3776 else
adam@1465	3777 return NULL;
adam@1465	3778 }
adam@1465	3779
adam@1799	3780 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3781 if (!envVar_format(s))
adam@1799	3782 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3783
adam@1799	3784 if (ctx->app->check_envVar(s))
adam@1799	3785 return s;
adam@1799	3786 else
adam@1799	3787 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3788 }
adam@1799	3789
adam@1799	3790 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3791 if (!mime_format(s))
adam@1799	3792 return NULL;
adam@1799	3793
adam@1799	3794 if (ctx->app->check_envVar(s))
adam@1799	3795 return s;
adam@1799	3796 else
adam@1799	3797 return NULL;
adam@1799	3798 }
adam@1799	3799
adam@1465	3800 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3801 return uw_Basis_requestHeader(ctx, name);
adam@1465	3802 }
adam@1465	3803
adam@1465	3804 static int mime_value_format(const char *s) {
adam@1465	3805 for (; *s; ++s)
adam@1465	3806 if (s == '\r' \|\| s == '\n')
adam@1465	3807 return 0;
adam@1465	3808
adam@1465	3809 return 1;
adam@1465	3810 }
adam@1465	3811
adam@1465	3812 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3813 if (!mime_value_format(value))
adam@1465	3814 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3815
adam@1465	3816 uw_write_header(ctx, name);
adam@1465	3817 uw_write_header(ctx, ": ");
adam@1465	3818 uw_write_header(ctx, value);
adam@1465	3819 uw_write_header(ctx, "\r\n");
adam@1465	3820
adam@1465	3821 return uw_unit_v;
adam@1465	3822 }
adam@1465	3823
adam@1799	3824 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1993	3825 if (ctx->get_env)
adam@1993	3826 return ctx->get_env(ctx->get_env_data, name);
adam@1993	3827 else
adam@1994	3828 return getenv(name);
adam@1799	3829 }
adam@1799	3830
adamc@734	3831 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3832 return s ? s : "";
adamc@734	3833 }
adamc@734	3834
adamc@734	3835 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3836 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3837 int i;
phurst@1981	3838
adamc@734	3839 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3840 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3841
adamc@734	3842 return r;
adamc@734	3843 }
adamc@734	3844
adam@1512	3845 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3846 * optimizations that would enable timing attacks. See:
adam@1512	3847 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3848 */
adam@1512	3849 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3850 int i, x = 0, len1 = strlen(s1);
adam@1512	3851
adam@1512	3852 if (len1 != strlen(s2)) return 0;
adam@1512	3853
adam@1512	3854 for (i = 0; i < len1; ++i) {
adam@1512	3855 __asm__ __volatile__ ("");
adam@1512	3856 x \|= s1[i] ^ s2[i];
adam@1512	3857 }
adam@1512	3858
adam@1512	3859 return x == 0;
adam@1512	3860 }
adam@1512	3861
adamc@734	3862 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3863 ctx->usedSig = 1;
adamc@1094	3864 return ctx->app->cookie_sig(ctx);
adamc@734	3865 }
adamc@737	3866
adamc@737	3867 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3868 return f.name;
adamc@737	3869 }
adamc@737	3870
adamc@740	3871 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3872 return f.type;
adamc@740	3873 }
adamc@740	3874
adamc@745	3875 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3876 return b.size;
adamc@745	3877 }
adamc@745	3878
adamc@1119	3879 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3880 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3881
adamc@1119	3882 return b;
adamc@1119	3883 }
adamc@1119	3884
adamc@737	3885 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3886 return f.data;
adamc@737	3887 }
adamc@741	3888
adam@1347	3889 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3890 return pb.type;
adam@1347	3891 }
adam@1347	3892
adam@1347	3893 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3894 return pb.data;
adam@1347	3895 }
adam@1347	3896
adam@1471	3897 static char *old_headers(uw_context ctx) {
adam@1471	3898 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3899 return NULL;
adam@1471	3900 else {
adam@1471	3901 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3902
adam@1471	3903 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3904 return NULL;
adam@1471	3905 else {
adam@1471	3906 s = strchr(s+15, '\n');
adam@1471	3907 if (s == NULL)
adam@1471	3908 return NULL;
adam@1471	3909 else
adam@1471	3910 return uw_strdup(ctx, s+1);
adam@1471	3911 }
adam@1471	3912 }
adam@1471	3913 }
adam@1471	3914
adamc@741	3915 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3916 cleanup *cl;
adamc@741	3917 int len;
adam@1471	3918 char *oldh;
adamc@741	3919
adam@1451	3920 if (!ctx->allowed_to_return_indirectly)
adam@1451	3921 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3922
adamc@1065	3923 ctx->returning_indirectly = 1;
adam@1471	3924 oldh = old_headers(ctx);
adam@1369	3925 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3926 uw_buffer_reset(&ctx->page);
adamc@741	3927
adamc@856	3928 uw_write_header(ctx, on_success);
adamc@856	3929 uw_write_header(ctx, "Content-Type: ");
adamc@741	3930 uw_write_header(ctx, mimeType);
adam@1934	3931 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369	3932 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3933 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3934 ctx->outHeaders.front += len;
adamc@1066	3935 uw_write_header(ctx, "\r\n");
adam@1471	3936 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3937
adam@1369	3938 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3939
adamc@741	3940 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3941 cl->func(cl->arg);
adamc@741	3942
adamc@741	3943 ctx->cleanup_front = ctx->cleanup;
adamc@741	3944
adamc@1065	3945 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3946 }
adamc@1065	3947
adam@2046	3948 void uw_replace_page(uw_context ctx, const char *data, size_t size) {
adam@2046	3949 uw_buffer_reset(&ctx->page);
adam@2046	3950 ctx_uw_buffer_append(ctx, "page", &ctx->page, data, size);
adam@2046	3951 }
adam@2046	3952
adam@1932	3953 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932	3954 cleanup *cl;
adam@1932	3955 int len;
adam@1932	3956 char *oldh;
adam@1932	3957
adam@1932	3958 if (!ctx->allowed_to_return_indirectly)
adam@1932	3959 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932	3960
adam@1932	3961 ctx->returning_indirectly = 1;
adam@1932	3962 oldh = old_headers(ctx);
adam@1932	3963 uw_buffer_reset(&ctx->outHeaders);
adam@1932	3964
adam@1932	3965 uw_write_header(ctx, on_success);
adam@1932	3966 uw_write_header(ctx, "Content-Type: ");
adam@1932	3967 uw_write_header(ctx, mimeType);
adam@1934	3968 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932	3969 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932	3970 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932	3971 ctx->outHeaders.front += len;
adam@1932	3972 uw_write_header(ctx, "\r\n");
adam@1932	3973 if (oldh) uw_write_header(ctx, oldh);
adam@1932	3974
adam@1932	3975 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932	3976 cl->func(cl->arg);
adam@1932	3977
adam@1932	3978 ctx->cleanup_front = ctx->cleanup;
adam@1932	3979
adam@1932	3980 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932	3981 }
adam@1932	3982
adamc@1065	3983 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3984 cleanup *cl;
adamc@1066	3985 char *s;
adam@1471	3986 char *oldh;
adamc@1065	3987
adam@1451	3988 if (!ctx->allowed_to_return_indirectly)
adam@1451	3989 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3990
adamc@1065	3991 ctx->returning_indirectly = 1;
adam@1471	3992 oldh = old_headers(ctx);
adam@1369	3993 uw_buffer_reset(&ctx->page);
adam@1369	3994 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3995 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3996 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3997 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3998
adam@1409	3999 if (on_success[0])
adam@1409	4000 uw_write_header(ctx, on_redirect);
adam@1409	4001 else
adam@1409	4002 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	4003 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	4004 if (s) {
adamc@1066	4005 char *s2;
adam@1409	4006 if (s[0] == '\n') ++s;
adam@1409	4007 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	4008 *s2 = 0;
adamc@1066	4009 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	4010 uw_write_header(ctx, s);
adamc@1066	4011 uw_write_header(ctx, "\n");
adamc@1066	4012 }
adamc@1066	4013 }
adamc@1066	4014 }
adamc@1066	4015
adamc@1065	4016 uw_write_header(ctx, "Location: ");
adamc@1065	4017 uw_write_header(ctx, url);
adamc@1065	4018 uw_write_header(ctx, "\r\n\r\n");
adam@1471	4019 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	4020
adamc@1065	4021 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	4022 cl->func(cl->arg);
adamc@1065	4023
adamc@1065	4024 ctx->cleanup_front = ctx->cleanup;
adamc@1065	4025
adamc@1065	4026 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	4027 }
adamc@874	4028
adamc@874	4029 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	4030 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	4031
adamc@874	4032 for (; *s; ++s) {
adamc@874	4033 if (s[0] == '\'') {
adamc@874	4034 *r++ = '\'';
adamc@874	4035 for (++s; *s; ++s) {
adamc@874	4036 if (s[0] == '\'') {
adamc@874	4037 *r++ = '\'';
adamc@874	4038 break;
adamc@874	4039 } else if (s[0] == '\\') {
adam@1467	4040 *r++ = '\\';
adam@1467	4041 *r++ = s[1];
adam@1467	4042 ++s;
adamc@874	4043 } else
adamc@874	4044 *r++ = s[0];
adamc@874	4045 }
adamc@874	4046 if (*s == 0) break;
adam@1467	4047 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	4048 s += 3;
adamc@874	4049 else
adamc@874	4050 *r++ = s[0];
adamc@874	4051 }
adamc@874	4052
adam@1467	4053 *r = 0;
adam@1467	4054 return ret;
adamc@874	4055 }
adamc@874	4056
adamc@922	4057 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	4058 va_list ap;
adamc@922	4059 size_t len = 1;
adamc@922	4060 char s, r, *s2;
phurst@1981	4061
adamc@922	4062 va_start(ap, ctx);
adamc@922	4063 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4064 len += strlen(s);
adamc@922	4065 va_end(ap);
adamc@922	4066
adamc@922	4067 r = uw_malloc(ctx, len);
adamc@922	4068 va_start(ap, ctx);
adamc@922	4069 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4070 while (*s)
adamc@922	4071 s2++ = s++;
adamc@922	4072 va_end(ap);
adamc@922	4073 *s2 = 0;
adamc@922	4074
adamc@922	4075 return r;
adamc@922	4076 }
adamc@1006	4077
adam@1365	4078 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	4079
adamc@1006	4080 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	4081 uw_Basis_time r = { time(NULL) };
adam@1365	4082 return r;
adamc@1006	4083 }
adamc@1061	4084
adam@1369	4085 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	4086 tm.seconds += n;
adam@1365	4087 return tm;
adamc@1138	4088 }
adamc@1138	4089
adam@1514	4090 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	4091 return difftime(tm2.seconds, tm1.seconds);
adam@1514	4092 }
adam@1514	4093
adam@1685	4094 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	4095 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	4096 }
adam@1685	4097
adam@2187	4098 uw_Basis_time uw_Basis_fromMilliseconds(uw_context ctx, uw_Basis_int n) {
adam@2187	4099 uw_Basis_time tm = {n / 1000, n % 1000 * 1000};
adam@2187	4100 return tm;
adam@2187	4101 }
adam@2187	4102
adam@1685	4103 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	4104 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	4105 }
adam@1685	4106
adam@1514	4107 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	4108 return tm.seconds;
adam@1514	4109 }
adam@1514	4110
phurst@1971	4111 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	4112 struct tm tm = { .tm_year = year - 1900, .tm_mon = month, .tm_mday = day,
adam@2015	4113 .tm_hour = hour, .tm_min = minute, .tm_sec = second,
adam@2015	4114 .tm_isdst = -1 };
phurst@1984	4115 uw_Basis_time r = { timelocal(&tm) };
phurst@1971	4116 return r;
phurst@1971	4117 }
phurst@1971	4118
phurst@1971	4119 uw_Basis_int uw_Basis_datetimeYear(uw_context ctx, uw_Basis_time time) {
phurst@1971	4120 struct tm tm;
phurst@1982	4121 localtime_r(&time.seconds, &tm);
phurst@1971	4122 return tm.tm_year + 1900;
phurst@1971	4123 }
phurst@1971	4124
phurst@1971	4125 uw_Basis_int uw_Basis_datetimeMonth(uw_context ctx, uw_Basis_time time) {
phurst@1971	4126 struct tm tm;
phurst@1982	4127 localtime_r(&time.seconds, &tm);
phurst@1971	4128 return tm.tm_mon;
phurst@1971	4129 }
phurst@1971	4130
phurst@1971	4131 uw_Basis_int uw_Basis_datetimeDay(uw_context ctx, uw_Basis_time time) {
phurst@1971	4132 struct tm tm;
phurst@1982	4133 localtime_r(&time.seconds, &tm);
phurst@1971	4134 return tm.tm_mday;
phurst@1971	4135 }
phurst@1971	4136
phurst@1971	4137 uw_Basis_int uw_Basis_datetimeHour(uw_context ctx, uw_Basis_time time) {
phurst@1971	4138 struct tm tm;
phurst@1982	4139 localtime_r(&time.seconds, &tm);
phurst@1971	4140 return tm.tm_hour;
phurst@1971	4141 }
phurst@1971	4142
phurst@1971	4143 uw_Basis_int uw_Basis_datetimeMinute(uw_context ctx, uw_Basis_time time) {
phurst@1971	4144 struct tm tm;
phurst@1982	4145 localtime_r(&time.seconds, &tm);
phurst@1971	4146 return tm.tm_min;
phurst@1971	4147 }
phurst@1971	4148
phurst@1971	4149 uw_Basis_int uw_Basis_datetimeSecond(uw_context ctx, uw_Basis_time time) {
phurst@1971	4150 struct tm tm;
phurst@1982	4151 localtime_r(&time.seconds, &tm);
phurst@1971	4152 return tm.tm_sec;
phurst@1971	4153 }
phurst@1971	4154
phurst@1973	4155 uw_Basis_int uw_Basis_datetimeDayOfWeek(uw_context ctx, uw_Basis_time time) {
phurst@1973	4156 struct tm tm;
phurst@1982	4157 localtime_r(&time.seconds, &tm);
phurst@1973	4158 return tm.tm_wday;
phurst@1973	4159 }
phurst@1971	4160
phurst@1971	4161
adamc@1061	4162 void uw_get_global(uw_context ctx, char name) {
adamc@1061	4163 int i;
adamc@1061	4164
adamc@1061	4165 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4166 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	4167 return ctx->globals[i].data;
adamc@1061	4168
adamc@1061	4169 return NULL;
adamc@1061	4170 }
adamc@1061	4171
adamc@1113	4172 size_t uw_globals_max = SIZE_MAX;
adamc@1113	4173
adamc@1061	4174 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	4175 int i;
adamc@1061	4176
adamc@1061	4177 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4178 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	4179 if (ctx->globals[i].free)
adamc@1061	4180 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	4181 ctx->globals[i].data = data;
adamc@1061	4182 ctx->globals[i].free = free;
adamc@1061	4183 return;
adamc@1061	4184 }
adamc@1089	4185
adamc@1113	4186 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	4187 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	4188
adamc@1061	4189 ++ctx->n_globals;
adamc@1061	4190 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	4191 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	4192 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	4193 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	4194 }
adamc@1061	4195
adamc@1061	4196 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	4197 return !!isalnum((int)c);
adamc@1061	4198 }
adamc@1061	4199
adamc@1061	4200 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	4201 return !!isalpha((int)c);
adamc@1061	4202 }
adamc@1061	4203
adamc@1061	4204 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	4205 return !!isblank((int)c);
adamc@1061	4206 }
adamc@1061	4207
adamc@1061	4208 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	4209 return !!iscntrl((int)c);
adamc@1061	4210 }
adamc@1061	4211
adamc@1061	4212 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4213 return !!isdigit((int)c);
adamc@1061	4214 }
adamc@1061	4215
adamc@1061	4216 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	4217 return !!isgraph((int)c);
adamc@1061	4218 }
adamc@1061	4219
adamc@1061	4220 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4221 return !!islower((int)c);
adamc@1061	4222 }
adamc@1061	4223
adamc@1061	4224 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	4225 return !!isprint((int)c);
adamc@1061	4226 }
adamc@1061	4227
adamc@1061	4228 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	4229 return !!ispunct((int)c);
adamc@1061	4230 }
adamc@1061	4231
adamc@1061	4232 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	4233 return !!isspace((int)c);
adamc@1061	4234 }
adamc@1063	4235
adamc@1061	4236 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4237 return !!isupper((int)c);
adamc@1061	4238 }
adamc@1061	4239
adamc@1061	4240 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4241 return !!isxdigit((int)c);
adamc@1061	4242 }
adamc@1061	4243
adamc@1061	4244 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4245 return tolower((int)c);
adamc@1061	4246 }
adamc@1061	4247
adamc@1061	4248 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4249 return toupper((int)c);
adamc@1061	4250 }
adamc@1066	4251
adamc@1128	4252 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	4253 return (unsigned char)c;
adamc@1128	4254 }
adamc@1128	4255
adamc@1128	4256 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	4257 return n;
adamc@1128	4258 }
adamc@1128	4259
adamc@1066	4260 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	4261 return ctx->current_url;
adamc@1066	4262 }
adamc@1066	4263
adamc@1066	4264 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	4265 ctx->current_url = s;
adamc@1066	4266 }
adamc@1114	4267
adamc@1114	4268 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	4269 ctx->deadline = n;
adamc@1114	4270 }
adamc@1114	4271
adamc@1114	4272 void uw_check_deadline(uw_context ctx) {
adamc@1114	4273 if (uw_time > ctx->deadline)
adamc@1114	4274 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	4275 }
adamc@1115	4276
adamc@1115	4277 size_t uw_database_max = SIZE_MAX;
adamc@1120	4278
adam@1389	4279 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@2143	4280 if (ctx->loggers->log_debug)
adam@2143	4281 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@2143	4282 else
adam@2143	4283 fprintf(stderr, "%s\n", s);
adam@1389	4284 return 0;
adam@1389	4285 }
adam@1389	4286
adamc@1120	4287 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
grrwlf@1997	4288 if (ctx->loggers->log_debug)
grrwlf@1997	4289 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@1334	4290 else
adam@1334	4291 fprintf(stderr, "%s\n", s);
adamc@1120	4292 return uw_unit_v;
adamc@1120	4293 }
adamc@1250	4294
adamc@1250	4295 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@2104	4296 int r = my_rand();
adam@2104	4297
adam@2104	4298 if (r >= 0)
adam@2104	4299 return r;
adam@1486	4300 else
adam@1486	4301 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	4302 }
adam@1347	4303
adam@1347	4304 void uw_noPostBody(uw_context ctx) {
adam@1347	4305 ctx->hasPostBody = 0;
adam@1347	4306 }
adam@1347	4307
adam@1347	4308 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	4309 ctx->hasPostBody = 1;
adam@1347	4310 ctx->postBody = pb;
adam@1347	4311 }
adam@1347	4312
adam@1347	4313 int uw_hasPostBody(uw_context ctx) {
adam@1347	4314 return ctx->hasPostBody;
adam@1347	4315 }
adam@1347	4316
adam@1386	4317 void uw_isPost(uw_context ctx) {
adam@1386	4318 ctx->isPost = 1;
adam@1386	4319 }
adam@1386	4320
adam@1386	4321 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4322 return ctx->isPost;
adam@1386	4323 }
adam@1386	4324
adam@1485	4325 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4326 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4327 }
adam@1485	4328
adam@1370	4329 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4330 ctx->queryString = s;
adam@1370	4331 }
adam@1370	4332
adam@1370	4333 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4334 return ctx->queryString;
adam@1370	4335 }
adam@1370	4336
adam@1347	4337 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4338 if (ctx->hasPostBody)
adam@1347	4339 return ctx->postBody;
adam@1347	4340 else
adam@1347	4341 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4342 }
adam@1349	4343
adam@1349	4344 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4345 int r = setjmp(ctx->jmp_buf);
adam@1349	4346
adam@1349	4347 if (r == 0) {
adam@1936	4348 uw_ensure_transaction(ctx);
adam@1418	4349
adam@1349	4350 callback(ctx);
adam@1349	4351 }
adam@1349	4352
adam@1349	4353 return r;
adam@1349	4354 }
adam@1360	4355
adam@1360	4356 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4357 char buf[14];
adam@1397	4358 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4359 }
adam@1365	4360
adam@1365	4361 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4362 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	4363 }
adam@1365	4364
adam@1365	4365 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@2034	4366 return !!(t1.seconds < t2.seconds \|\| (t1.seconds == t2.seconds && t1.microseconds < t2.microseconds));
adam@1365	4367 }
adam@1365	4368
adam@1365	4369 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4370 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4371 }
adam@1365	4372
adam@1372	4373 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4374 struct tm stm = {};
adam@1375	4375 char *end = strchr(s, 0);
adam@1449	4376 stm.tm_isdst = -1;
adam@1375	4377
adam@1632	4378 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4379 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4380
kkallio@1448	4381 r->seconds = timegm(&stm);
adam@1373	4382 r->microseconds = 0;
adam@1373	4383
adam@1373	4384 return r;
adam@1374	4385 }
adam@1374	4386 else
adam@1373	4387 return NULL;
adam@1372	4388 }
adam@1407	4389
adam@1407	4390 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4391 int r = setjmp(ctx->jmp_buf);
adam@1407	4392
adam@1407	4393 if (ctx->app->on_error) {
adam@1407	4394 if (r == 0) {
adam@1936	4395 uw_ensure_transaction(ctx);
adam@1407	4396
adam@1409	4397 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4398 if (on_success[0])
adam@1409	4399 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4400 else
adam@1409	4401 uw_write_header(ctx, "Status: ");
adam@1409	4402 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919	4403 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1956	4404 uw_write(ctx, ctx->app->is_html5 ? uw_begin_html5 : uw_begin_xhtml);
adam@1407	4405 ctx->app->on_error(ctx, msg);
adam@1407	4406 uw_write(ctx, "</html>");
adam@1407	4407 }
adam@1407	4408
adam@1407	4409 return r;
adam@1407	4410 } else
adam@1407	4411 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4412 }
adam@1451	4413
adam@1451	4414 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4415 ctx->allowed_to_return_indirectly = 1;
adam@1451	4416 }
adam@1483	4417
adam@1556	4418 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4419 int len;
adam@1703	4420 char *r;
adam@1703	4421
adam@1703	4422 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4423 r = ctx->heap.front;
adam@1703	4424 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4425 ctx->heap.front += len+1;
adam@1703	4426 return r;
adam@1556	4427 }
adam@1571	4428
adam@1571	4429 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4430 return n;
adam@1571	4431 }
adam@1571	4432
adam@1571	4433 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4434 return ceil(n);
adam@1571	4435 }
adam@1571	4436
adam@1571	4437 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4438 return trunc(n);
adam@1571	4439 }
adam@1571	4440
adam@1571	4441 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4442 return round(n);
adam@1571	4443 }
adam@1755	4444
adam@1755	4445 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755	4446 char *p;
adam@1755	4447
adam@1755	4448 for (p = s; *p; ++p) {
adam@1755	4449 char c = *p;
adam@1801	4450 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755	4451 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4452 }
adam@1755	4453
adam@1755	4454 return s;
adam@1755	4455 }
adam@1755	4456
adam@1755	4457 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4458 char *p;
adam@1755	4459
adam@1755	4460 for (p = s; *p; ++p) {
adam@1755	4461 char c = *p;
adam@1801	4462 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4463 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4464 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4465 }
adam@1755	4466
adam@1755	4467 return s;
adam@1755	4468 }
adam@1755	4469
adam@1755	4470 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4471 char *p;
adam@1755	4472
adam@1755	4473 if (!*s)
adam@1755	4474 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4475
adam@1801	4476 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4477 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4478
adam@1755	4479 for (p = s; *p; ++p) {
adam@1755	4480 char c = *p;
adam@1801	4481 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4482 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4483 }
adam@1755	4484
adam@1755	4485 return s;
adam@1755	4486 }
adam@1787	4487
adam@1787	4488 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4489 return f.name;
adam@1787	4490 }
adam@1787	4491
adam@1787	4492 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4493 return f.value;
adam@1787	4494 }
adam@1787	4495
adam@1787	4496 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4497 return f.remaining;
adam@1787	4498 }
adam@1787	4499
adam@1787	4500 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4501 char *unurl;
adam@1787	4502 uw_Basis_postField *f;
adam@1787	4503
adam@1788	4504 if (!ctx->hasPostBody)
adam@1788	4505 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4506
adam@1788	4507 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4508 return NULL;
adam@1787	4509
adam@1787	4510 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4511 unurl = s;
adam@1787	4512 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4513 s = strchr(s, 0);
adam@1788	4514 if (!s)
adam@1788	4515 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4516 ++s;
adam@1788	4517 unurl = s;
adam@1788	4518 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4519 s = strchr(s, 0);
adam@1788	4520 if (!s)
adam@1788	4521 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4522 f->remaining = s+1;
adam@1787	4523
adam@1787	4524 return f;
adam@1787	4525 }
adam@2008	4526
adam@2008	4527 uw_Basis_string uw_Basis_blessData(uw_context ctx, uw_Basis_string s) {
adam@2008	4528 char *p = s;
adam@2008	4529
adam@2008	4530 for (; *p; ++p)
adam@2008	4531 if (!isalnum(p) && p != '-' && *p != '_')
adam@2008	4532 uw_error(ctx, FATAL, "Illegal HTML5 data-* attribute: %s", s);
adam@2008	4533
adam@2008	4534 return s;
adam@2008	4535 }
adam@2073	4536
adam@2073	4537 int uw_remoteSock(uw_context ctx) {
adam@2073	4538 return ctx->remoteSock;
adam@2073	4539 }
adam@2073	4540
adam@2073	4541 void uw_set_remoteSock(uw_context ctx, int sock) {
adam@2073	4542 ctx->remoteSock = sock;
adam@2073	4543 }
ziv@2234	4544
ziv@2234	4545
ziv@2234	4546 // Sqlcache
ziv@2234	4547
ziv@2284	4548 typedef struct uw_Sqlcache_Entry {
ziv@2284	4549 char *key;
ziv@2284	4550 uw_Sqlcache_Value *value;
ziv@2284	4551 unsigned long timeInvalid;
ziv@2284	4552 UT_hash_handle hh;
ziv@2284	4553 } uw_Sqlcache_Entry;
ziv@2284	4554
ziv@2279	4555 void uw_Sqlcache_freeValue(uw_Sqlcache_Value *value) {
ziv@2234	4556 if (value) {
ziv@2234	4557 free(value->result);
ziv@2234	4558 free(value->output);
ziv@2234	4559 free(value);
ziv@2234	4560 }
ziv@2234	4561 }
ziv@2234	4562
ziv@2279	4563 void uw_Sqlcache_freeEntry(uw_Sqlcache_Entry* entry) {
ziv@2279	4564 if (entry) {
ziv@2279	4565 free(entry->key);
ziv@2279	4566 uw_Sqlcache_freeValue(entry->value);
ziv@2279	4567 free(entry);
ziv@2279	4568 }
ziv@2279	4569 }
ziv@2279	4570
ziv@2279	4571 // TODO: pick a number.
ziv@2279	4572 unsigned int uw_Sqlcache_maxSize = 1234567890;
ziv@2279	4573
ziv@2279	4574 void uw_Sqlcache_delete(uw_Sqlcache_Cache cache, uw_Sqlcache_Entry entry) {
ziv@2279	4575 HASH_DEL(cache->table, entry);
ziv@2279	4576 uw_Sqlcache_freeEntry(entry);
ziv@2279	4577 }
ziv@2279	4578
ziv@2279	4579 uw_Sqlcache_Entry uw_Sqlcache_find(uw_Sqlcache_Cache cache, char *key, size_t len, int bump) {
ziv@2279	4580 uw_Sqlcache_Entry *entry = NULL;
ziv@2279	4581 HASH_FIND(hh, cache->table, key, len, entry);
ziv@2279	4582 if (entry && bump) {
ziv@2279	4583 // Bump for LRU purposes.
ziv@2279	4584 HASH_DEL(cache->table, entry);
ziv@2279	4585 // Important that we use [entry->key], because [key] might be ephemeral.
ziv@2279	4586 HASH_ADD_KEYPTR(hh, cache->table, entry->key, len, entry);
ziv@2279	4587 }
ziv@2279	4588 return entry;
ziv@2279	4589 }
ziv@2279	4590
ziv@2279	4591 void uw_Sqlcache_add(uw_Sqlcache_Cache cache, uw_Sqlcache_Entry entry, size_t len) {
ziv@2279	4592 HASH_ADD_KEYPTR(hh, cache->table, entry->key, len, entry);
ziv@2279	4593 if (HASH_COUNT(cache->table) > uw_Sqlcache_maxSize) {
ziv@2279	4594 // Deletes the first element of the cache.
ziv@2279	4595 uw_Sqlcache_delete(cache, cache->table);
ziv@2279	4596 }
ziv@2279	4597 }
ziv@2279	4598
ziv@2279	4599 unsigned long uw_Sqlcache_getTimeNow(uw_Sqlcache_Cache *cache) {
ziv@2279	4600 return ++cache->timeNow;
ziv@2279	4601 }
ziv@2279	4602
ziv@2279	4603 unsigned long uw_Sqlcache_timeMax(unsigned long x, unsigned long y) {
ziv@2279	4604 return x > y ? x : y;
ziv@2279	4605 }
ziv@2279	4606
ziv@2279	4607 char uw_Sqlcache_keySep = '_';
ziv@2279	4608
ziv@2284	4609 char uw_Sqlcache_allocKeyBuffer(char *keys, size_t numKeys) {
ziv@2279	4610 size_t len = 0;
ziv@2279	4611 while (numKeys-- > 0) {
ziv@2279	4612 char* k = keys[numKeys];
ziv@2279	4613 if (!k) {
ziv@2279	4614 // Can only happen when flushihg, in which case we don't need anything past the null key.
ziv@2279	4615 break;
ziv@2234	4616 }
ziv@2279	4617 // Leave room for separator.
ziv@2279	4618 len += 1 + strlen(k);
ziv@2234	4619 }
ziv@2279	4620 char *buf = malloc(len+1);
ziv@2279	4621 // If nothing is copied into the buffer, it should look like it has length 0.
ziv@2279	4622 buf[0] = 0;
ziv@2279	4623 return buf;
ziv@2279	4624 }
ziv@2279	4625
ziv@2279	4626 char uw_Sqlcache_keyCopy(char buf, char *key) {
ziv@2279	4627 *buf++ = uw_Sqlcache_keySep;
ziv@2279	4628 return stpcpy(buf, key);
ziv@2279	4629 }
ziv@2279	4630
ziv@2279	4631 // The NUL-terminated prefix of [key] below always looks something like "_k1_k2_k3..._kn".
ziv@2279	4632 // TODO: strlen(key) = buf - key?
ziv@2279	4633
ziv@2281	4634 uw_Sqlcache_Value uw_Sqlcache_check(uw_Sqlcache_Cache cache, char **keys) {
ziv@2284	4635 //pthread_rwlock_rdlock(cache->lock);
ziv@2281	4636 size_t numKeys = cache->numKeys;
ziv@2279	4637 char *key = uw_Sqlcache_allocKeyBuffer(keys, numKeys);
ziv@2279	4638 char *buf = key;
ziv@2279	4639 time_t timeInvalid = cache->timeInvalid;
ziv@2279	4640 uw_Sqlcache_Entry *entry;
ziv@2279	4641 while (numKeys-- > 0) {
ziv@2279	4642 buf = uw_Sqlcache_keyCopy(buf, keys[numKeys]);
ziv@2279	4643 size_t len = buf - key;
ziv@2279	4644 entry = uw_Sqlcache_find(cache, key, len, 1);
ziv@2279	4645 if (!entry) {
ziv@2279	4646 free(key);
ziv@2279	4647 return NULL;
ziv@2279	4648 }
ziv@2279	4649 timeInvalid = uw_Sqlcache_timeMax(timeInvalid, entry->timeInvalid);
ziv@2234	4650 }
ziv@2279	4651 free(key);
ziv@2279	4652 uw_Sqlcache_Value *value = entry->value;
ziv@2284	4653 //pthread_rwlock_unlock(cache->lock);
ziv@2279	4654 return value && value->timeValid > timeInvalid ? value : NULL;
ziv@2279	4655 }
ziv@2279	4656
ziv@2281	4657 void uw_Sqlcache_store(uw_Sqlcache_Cache cache, char keys, uw_Sqlcache_Value value) {
ziv@2284	4658 //pthread_rwlock_wrlock(cache->lock);
ziv@2281	4659 size_t numKeys = cache->numKeys;
ziv@2279	4660 char *key = uw_Sqlcache_allocKeyBuffer(keys, numKeys);
ziv@2279	4661 char *buf = key;
ziv@2279	4662 time_t timeNow = uw_Sqlcache_getTimeNow(cache);
ziv@2279	4663 uw_Sqlcache_Entry *entry;
ziv@2279	4664 while (numKeys-- > 0) {
ziv@2279	4665 buf = uw_Sqlcache_keyCopy(buf, keys[numKeys]);
ziv@2279	4666 size_t len = buf - key;
ziv@2279	4667 entry = uw_Sqlcache_find(cache, key, len, 1);
ziv@2279	4668 if (!entry) {
ziv@2279	4669 entry = malloc(sizeof(uw_Sqlcache_Entry));
ziv@2279	4670 entry->key = strdup(key);
ziv@2279	4671 entry->value = NULL;
ziv@2279	4672 entry->timeInvalid = 0; // ASK: is this okay?
ziv@2279	4673 uw_Sqlcache_add(cache, entry, len);
ziv@2234	4674 }
ziv@2234	4675 }
ziv@2279	4676 free(key);
ziv@2279	4677 uw_Sqlcache_freeValue(entry->value);
ziv@2279	4678 entry->value = value;
ziv@2279	4679 entry->value->timeValid = timeNow;
ziv@2284	4680 //pthread_rwlock_unlock(cache->lock);
ziv@2279	4681 }
ziv@2279	4682
ziv@2282	4683 void uw_Sqlcache_flushCommitOne(uw_Sqlcache_Cache cache, char *keys) {
ziv@2281	4684 size_t numKeys = cache->numKeys;
ziv@2279	4685 char *key = uw_Sqlcache_allocKeyBuffer(keys, numKeys);
ziv@2279	4686 char *buf = key;
ziv@2279	4687 time_t timeNow = uw_Sqlcache_getTimeNow(cache);
ziv@2279	4688 uw_Sqlcache_Entry *entry;
ziv@2279	4689 while (numKeys-- > 0) {
ziv@2279	4690 char *k = keys[numKeys];
ziv@2279	4691 if (!k) {
ziv@2279	4692 if (entry) {
ziv@2279	4693 entry->timeInvalid = timeNow;
ziv@2234	4694 } else {
ziv@2279	4695 // Haven't found an entry yet, so the first key was null.
ziv@2279	4696 cache->timeInvalid = timeNow;
ziv@2234	4697 }
ziv@2279	4698 free(key);
ziv@2279	4699 return;
ziv@2234	4700 }
ziv@2279	4701 buf = uw_Sqlcache_keyCopy(buf, k);
ziv@2279	4702 size_t len = buf - key;
ziv@2279	4703 entry = uw_Sqlcache_find(cache, key, len, 0);
ziv@2279	4704 if (!entry) {
ziv@2279	4705 free(key);
ziv@2279	4706 return;
ziv@2279	4707 }
ziv@2234	4708 }
ziv@2279	4709 free(key);
ziv@2279	4710 // All the keys were non-null and the relevant entry is present, so we delete it.
ziv@2279	4711 uw_Sqlcache_delete(cache, entry);
ziv@2279	4712 }
ziv@2282	4713
ziv@2282	4714 void uw_Sqlcache_flushFree(void *data, int dontCare) {
ziv@2282	4715 uw_Sqlcache_Inval inval = (uw_Sqlcache_Inval )data;
ziv@2282	4716 while (inval) {
ziv@2282	4717 char** keys = inval->keys;
ziv@2282	4718 size_t numKeys = inval->cache->numKeys;
ziv@2282	4719 while (numKeys-- > 0) {
ziv@2282	4720 free(keys[numKeys]);
ziv@2282	4721 }
ziv@2282	4722 free(keys);
ziv@2282	4723 uw_Sqlcache_Inval *nextInval = inval->next;
ziv@2282	4724 free(inval);
ziv@2282	4725 inval = nextInval;
ziv@2282	4726 }
ziv@2282	4727 }
ziv@2282	4728
ziv@2282	4729 void uw_Sqlcache_flushCommit(void *data) {
ziv@2282	4730 uw_Sqlcache_Inval inval = (uw_Sqlcache_Inval )data;
ziv@2282	4731 while (inval) {
ziv@2282	4732 uw_Sqlcache_Cache *cache = inval->cache;
ziv@2282	4733 char **keys = inval->keys;
ziv@2282	4734 uw_Sqlcache_flushCommitOne(cache, keys);
ziv@2282	4735 inval = inval->next;
ziv@2282	4736 }
ziv@2284	4737 }
ziv@2284	4738
ziv@2284	4739 char uw_Sqlcache_copyKeys(char keys, size_t numKeys) {
ziv@2284	4740 char *copy = malloc(sizeof(char ) * numKeys);
ziv@2284	4741 while (numKeys-- > 0) {
ziv@2284	4742 char * k = keys[numKeys];
ziv@2284	4743 copy[numKeys] = k ? strdup(k) : NULL;
ziv@2284	4744 }
ziv@2284	4745 return copy;
ziv@2282	4746 }
ziv@2282	4747
ziv@2282	4748 void uw_Sqlcache_flush(uw_context ctx, uw_Sqlcache_Cache cache, char *keys) {
ziv@2284	4749 //pthread_rwlock_wrlock(cache->lock);
ziv@2282	4750 uw_Sqlcache_Inval *inval = malloc(sizeof(uw_Sqlcache_Inval));
ziv@2282	4751 inval->cache = cache;
ziv@2284	4752 inval->keys = uw_Sqlcache_copyKeys(keys, cache->numKeys);
ziv@2282	4753 inval->next = NULL;
ziv@2282	4754 if (ctx->inval) {
ziv@2283	4755 // An invalidation is already registered, so just extend it.
ziv@2282	4756 ctx->inval->next = inval;
ziv@2282	4757 } else {
ziv@2282	4758 uw_register_transactional(ctx, inval, uw_Sqlcache_flushCommit, NULL, uw_Sqlcache_flushFree);
ziv@2282	4759 }
ziv@2283	4760 // [ctx->inval] should always point to the last invalidation.
ziv@2282	4761 ctx->inval = inval;
ziv@2284	4762 //pthread_rwlock_unlock(cache->lock);
ziv@2284	4763 }

Mercurial > urweb

annotate src/c/urweb.c @ 2284:472b4504aef2