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

annotate src/c/urweb.c @ 1936:6745eafff617

Start SQL transactions as read-only when possible, based on conservative program analysis

author	Adam Chlipala <adam@chlipala.net>
date	Thu, 12 Dec 2013 17:42:48 -0500
parents	420d129c4174
children	d02c1a0d8082

rev	line source
adamc@1268	1 #include "config.h"
adamc@1268	2
adamc@117	3 #include <stdlib.h>
adamc@102	4 #include <stdio.h>
adamc@117	5 #include <string.h>
adamc@457	6 #include <strings.h>
adamc@106	7 #include <ctype.h>
adamc@167	8 #include <setjmp.h>
adamc@167	9 #include <stdarg.h>
adamc@682	10 #include <assert.h>
adamc@741	11 #include <ctype.h>
adamc@1114	12 #include <limits.h>
adamc@1113	13 #include <stdint.h>
adamc@1094	14 #include <sys/types.h>
adamc@1094	15 #include <sys/socket.h>
adam@1397	16 #include <openssl/des.h>
adam@1486	17 #include <openssl/rand.h>
adam@1374	18 #include <time.h>
adam@1571	19 #include <math.h>
adamc@102	20
adamc@667	21 #include <pthread.h>
adamc@667	22
adamc@102	23 #include "types.h"
adamc@102	24
adam@1431	25 uw_unit uw_unit_v = 0;
adamc@102	26
adamc@667	27
adamc@667	28 // Socket extras
adamc@667	29
adamc@863	30 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667	31 while (len > 0) {
adamc@856	32 ssize_t n = send(sock, buf, len, 0);
adamc@856	33
adamc@856	34 if (n < 0)
adamc@856	35 return n;
adamc@856	36
adamc@856	37 buf += n;
adamc@856	38 len -= n;
adamc@856	39 }
adamc@856	40
adamc@856	41 return 0;
adamc@856	42 }
adamc@856	43
adamc@856	44 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856	45 while (len > 0) {
adamc@856	46 ssize_t n = write(fd, buf, len);
adamc@667	47
adamc@667	48 if (n < 0)
adamc@667	49 return n;
adamc@667	50
adamc@667	51 buf += n;
adamc@667	52 len -= n;
adamc@667	53 }
adamc@667	54
adamc@667	55 return 0;
adamc@667	56 }
adamc@667	57
adamc@667	58
adamc@667	59 // Buffers
adamc@667	60
adam@1369	61 void uw_buffer_init(size_t max, uw_buffer *b, size_t s) {
adamc@1113	62 b->max = max;
adamc@667	63 b->front = b->start = malloc(s);
adamc@667	64 b->back = b->front + s;
adamc@667	65 }
adamc@667	66
adam@1369	67 void uw_buffer_free(uw_buffer *b) {
adamc@667	68 free(b->start);
adamc@667	69 }
adamc@667	70
adam@1369	71 void uw_buffer_reset(uw_buffer *b) {
adamc@667	72 b->front = b->start;
adamc@667	73 }
adamc@667	74
adam@1369	75 int uw_buffer_check(uw_buffer *b, size_t extra) {
adamc@667	76 if (b->back - b->front < extra) {
adamc@667	77 size_t desired = b->front - b->start + extra, next;
adamc@667	78 char *new_heap;
adamc@667	79
adamc@667	80 next = b->back - b->start;
adamc@667	81 if (next == 0)
adamc@667	82 next = 1;
adamc@667	83 for (; next < desired; next *= 2);
adamc@667	84
adamc@1134	85 if (next > b->max) {
adamc@1113	86 if (desired <= b->max)
adamc@1113	87 next = desired;
adamc@1113	88 else
adamc@1113	89 return 1;
adamc@1134	90 }
adamc@1113	91
adamc@667	92 new_heap = realloc(b->start, next);
adamc@667	93 b->front = new_heap + (b->front - b->start);
adamc@667	94 b->back = new_heap + next;
adamc@667	95 b->start = new_heap;
adamc@667	96 }
adamc@1113	97
adamc@1113	98 return 0;
adamc@1113	99 }
adamc@1113	100
adamc@1113	101 __attribute__((noreturn)) void uw_error(uw_context, failure_kind, const char *, ...);
adamc@1113	102
adam@1369	103 static void ctx_uw_buffer_check(uw_context ctx, const char kind, uw_buffer b, size_t extra) {
adam@1369	104 if (uw_buffer_check(b, extra))
adamc@1113	105 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@667	106 }
adamc@667	107
adam@1369	108 size_t uw_buffer_used(uw_buffer *b) {
adamc@667	109 return b->front - b->start;
adamc@667	110 }
adamc@667	111
adam@1369	112 size_t uw_buffer_avail(uw_buffer *b) {
adamc@667	113 return b->back - b->start;
adamc@667	114 }
adamc@667	115
adam@1369	116 int uw_buffer_append(uw_buffer b, const char s, size_t len) {
adam@1369	117 if (uw_buffer_check(b, len+1))
adamc@1113	118 return 1;
adamc@1113	119
adamc@1113	120 memcpy(b->front, s, len);
adamc@1113	121 b->front += len;
adamc@1113	122 *b->front = 0;
adamc@1113	123
adamc@1113	124 return 0;
adamc@1113	125 }
adamc@1113	126
adam@1369	127 static void ctx_uw_buffer_append(uw_context ctx, const char kind, uw_buffer b, const char *s, size_t len) {
adam@1369	128 ctx_uw_buffer_check(ctx, kind, b, len+1);
adamc@1113	129
adamc@668	130 memcpy(b->front, s, len);
adamc@668	131 b->front += len;
adamc@672	132 *b->front = 0;
adamc@668	133 }
adamc@667	134
adamc@668	135
adamc@672	136 // Persistent state types
adamc@667	137
adamc@667	138 typedef enum { UNUSED, USED } usage;
adamc@667	139
adamc@667	140 typedef struct client {
adamc@682	141 unsigned id;
adamc@667	142 usage mode;
adamc@682	143 int pass;
adamc@682	144 struct client *next;
adamc@689	145 pthread_mutex_t lock, pull_lock;
adam@1369	146 uw_buffer msgs;
adamc@682	147 int sock;
adamc@863	148 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	149 int (*close)(int fd);
adamc@682	150 time_t last_contact;
adamc@682	151 unsigned n_channels;
adamc@685	152 unsigned refcount;
adamc@1121	153 void *data;
adamc@667	154 } client;
adamc@667	155
adamc@672	156
adamc@672	157 // Persistent client state
adamc@672	158
adamc@682	159 static client *clients, clients_free, *clients_used;
adamc@682	160 static unsigned n_clients;
adamc@667	161
adam@1707	162 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@1113	163 size_t uw_messages_max = SIZE_MAX;
adamc@1113	164 size_t uw_clients_max = SIZE_MAX;
adamc@1113	165
adamc@1121	166 void *uw_init_client_data();
adamc@1121	167 void uw_free_client_data(void *);
adamc@1121	168 void uw_copy_client_data(void dst, void src);
adamc@1121	169
adamc@682	170 static client *new_client() {
adamc@667	171 client *c;
adamc@667	172
adamc@667	173 pthread_mutex_lock(&clients_mutex);
adamc@667	174
adamc@667	175 if (clients_free) {
adamc@667	176 c = clients_free;
adamc@682	177 clients_free = clients_free->next;
adamc@667	178 }
adam@1672	179 else if (n_clients >= uw_clients_max) {
adam@1672	180 pthread_mutex_unlock(&clients_mutex);
adamc@1113	181 return NULL;
adam@1672	182 } else {
adamc@667	183 ++n_clients;
adamc@667	184 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	185 c = malloc(sizeof(client));
adamc@667	186 c->id = n_clients-1;
adamc@682	187 pthread_mutex_init(&c->lock, NULL);
adamc@689	188 pthread_mutex_init(&c->pull_lock, NULL);
adam@1369	189 uw_buffer_init(uw_messages_max, &c->msgs, 0);
adamc@667	190 clients[n_clients-1] = c;
adamc@667	191 }
adamc@667	192
adamc@682	193 pthread_mutex_lock(&c->lock);
adamc@667	194 c->mode = USED;
adamc@682	195 c->pass = rand();
adamc@682	196 c->sock = -1;
adamc@682	197 c->last_contact = time(NULL);
adam@1369	198 uw_buffer_reset(&c->msgs);
adamc@682	199 c->n_channels = 0;
adamc@685	200 c->refcount = 0;
adamc@1121	201 c->data = uw_init_client_data();
adamc@682	202 pthread_mutex_unlock(&c->lock);
adamc@682	203
adamc@682	204 c->next = clients_used;
adamc@682	205 clients_used = c;
adamc@667	206
adamc@667	207 pthread_mutex_unlock(&clients_mutex);
adamc@667	208
adamc@667	209 return c;
adamc@667	210 }
adamc@667	211
adamc@685	212 static void use_client(client *c) {
adamc@685	213 pthread_mutex_lock(&c->lock);
adamc@685	214 ++c->refcount;
adamc@685	215 pthread_mutex_unlock(&c->lock);
adamc@689	216 pthread_mutex_lock(&c->pull_lock);
adamc@685	217 }
adamc@685	218
adamc@685	219 static void release_client(client *c) {
adamc@689	220 pthread_mutex_unlock(&c->pull_lock);
adamc@685	221 pthread_mutex_lock(&c->lock);
adamc@685	222 --c->refcount;
adamc@685	223 pthread_mutex_unlock(&c->lock);
adamc@685	224 }
adamc@685	225
adamc@856	226 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adam@1707	227 static pthread_t pruning_thread;
adam@1707	228 static int pruning_thread_initialized = 0;
adamc@667	229
adamc@682	230 static client *find_client(unsigned id) {
adamc@667	231 client *c;
adam@1708	232 int i_am_pruner = pruning_thread_initialized && pthread_equal(pruning_thread, pthread_self());
adam@1708	233
adam@1708	234 if (!i_am_pruner) pthread_mutex_lock(&clients_mutex);
adamc@667	235
adamc@667	236 if (id >= n_clients) {
adam@1708	237 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	238 return NULL;
adamc@667	239 }
adamc@667	240
adamc@667	241 c = clients[id];
adamc@667	242
adam@1708	243 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	244 return c;
adamc@668	245 }
adamc@668	246
adamc@856	247 static char *on_success = "HTTP/1.1 200 OK\r\n";
adam@1409	248 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	249
adamc@856	250 void uw_set_on_success(char *s) {
adamc@856	251 on_success = s;
adamc@856	252 }
adamc@856	253
adam@1552	254 static void chastise(int (send)(int sockfd, const void buf, ssize_t len), int sock) {
adam@1552	255 send(sock, on_success, strlen(on_success));
adam@1552	256 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1552	257 send(sock, "R", 1);
adam@1552	258 close(sock);
adam@1552	259 }
adam@1552	260
adamc@863	261 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	262 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	263 int (*close)(int fd),
adamc@864	264 void *logger_data, uw_logger log_error) {
adamc@682	265 client *c = find_client(id);
adamc@668	266
adamc@668	267 if (c == NULL) {
adam@1552	268 chastise(send, sock);
adamc@864	269 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	270 return;
adamc@667	271 }
adamc@667	272
adamc@682	273 pthread_mutex_lock(&c->lock);
adamc@671	274
adamc@682	275 if (c->mode != USED) {
adamc@682	276 pthread_mutex_unlock(&c->lock);
adam@1552	277 chastise(send, sock);
adamc@864	278 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	279 return;
adamc@667	280 }
adamc@667	281
adamc@682	282 if (pass != c->pass) {
adamc@682	283 pthread_mutex_unlock(&c->lock);
adam@1552	284 chastise(send, sock);
adamc@864	285 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	286 return;
adamc@667	287 }
adamc@667	288
adamc@682	289 if (c->sock != -1) {
adamc@863	290 c->close(c->sock);
adamc@682	291 c->sock = -1;
adamc@682	292 }
adamc@667	293
adamc@682	294 c->last_contact = time(NULL);
adamc@682	295
adam@1369	296 if (uw_buffer_used(&c->msgs) > 0) {
adamc@863	297 send(sock, on_success, strlen(on_success));
adamc@863	298 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1369	299 send(sock, c->msgs.start, uw_buffer_used(&c->msgs));
adam@1369	300 uw_buffer_reset(&c->msgs);
adamc@667	301 close(sock);
adamc@667	302 }
adamc@863	303 else {
adamc@682	304 c->sock = sock;
adamc@863	305 c->send = send;
adamc@863	306 c->close = close;
adamc@863	307 }
adamc@667	308
adamc@682	309 pthread_mutex_unlock(&c->lock);
adamc@667	310 }
adamc@667	311
adamc@682	312 static void free_client(client *c) {
adamc@682	313 c->mode = UNUSED;
adamc@682	314 c->pass = -1;
adamc@667	315
adamc@682	316 c->next = clients_free;
adamc@682	317 clients_free = c;
adamc@667	318 }
adamc@667	319
adamc@682	320 static uw_Basis_channel new_channel(client *c) {
adamc@682	321 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	322 return ch;
adamc@668	323 }
adamc@668	324
adam@1447	325 static void client_send(client c, uw_buffer msg, const char *script, int script_len) {
adamc@685	326 pthread_mutex_lock(&c->lock);
adamc@671	327
adamc@682	328 if (c->sock != -1) {
adamc@863	329 c->send(c->sock, on_success, strlen(on_success));
adamc@863	330 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1447	331 if (script_len > 0) {
adam@1447	332 c->send(c->sock, "E\n", 2);
adam@1447	333 c->send(c->sock, script, script_len);
adam@1447	334 c->send(c->sock, "\n", 1);
adam@1447	335 }
adam@1369	336 c->send(c->sock, msg->start, uw_buffer_used(msg));
adamc@863	337 c->close(c->sock);
adamc@682	338 c->sock = -1;
adam@1665	339 } else if (uw_buffer_append(&c->msgs, msg->start, uw_buffer_used(msg)))
adamc@1113	340 fprintf(stderr, "Client message buffer size exceeded");
adamc@671	341
adamc@685	342 pthread_mutex_unlock(&c->lock);
adamc@668	343 }
adamc@668	344
adamc@668	345
adamc@668	346 // Global entry points
adamc@668	347
adamc@1164	348 extern void uw_global_custom();
adamc@1104	349 extern void uw_init_crypto();
adamc@1104	350
adamc@668	351 void uw_global_init() {
adamc@668	352 srand(time(NULL) ^ getpid());
adamc@668	353
adamc@668	354 clients = malloc(0);
adamc@1104	355
adamc@1164	356 uw_global_custom();
adamc@1104	357 uw_init_crypto();
adamc@1094	358 }
adamc@1094	359
adamc@1094	360 void uw_app_init(uw_app *app) {
adamc@1094	361 app->client_init();
adamc@668	362 }
adamc@668	363
adam@1332	364 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114	365
adamc@668	366
adamc@667	367 // Single-request state
adamc@667	368
adamc@323	369 typedef struct regions {
adamc@323	370 struct regions *next;
adamc@323	371 } regions;
adamc@323	372
adamc@425	373 typedef struct {
adamc@425	374 void (func)(void);
adamc@425	375 void *arg;
adamc@425	376 } cleanup;
adamc@425	377
adamc@671	378 typedef struct {
adamc@682	379 unsigned client;
adam@1369	380 uw_buffer msgs;
adamc@682	381 } delta;
adamc@671	382
adamc@737	383 typedef enum {
adamc@759	384 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	385 } input_kind;
adamc@737	386
adamc@756	387 typedef struct input {
adamc@737	388 input_kind kind;
adamc@737	389 union {
adamc@737	390 char *normal;
adamc@739	391 uw_Basis_file file;
adamc@756	392 struct {
adamc@759	393 struct input fields, parent;
adamc@756	394 } subform;
adamc@759	395 struct {
adamc@759	396 struct input entries, parent;
adamc@759	397 } subforms;
adamc@759	398 struct {
adamc@759	399 struct input fields, next, *parent;
adamc@759	400 } entry;
adamc@737	401 } data;
adamc@737	402 } input;
adamc@737	403
adamc@771	404 typedef struct {
adamc@771	405 void *data;
adam@1327	406 uw_callback commit, rollback;
adam@1327	407 uw_callback_with_retry free;
adamc@771	408 } transactional;
adamc@771	409
adamc@1061	410 typedef struct {
adamc@1061	411 char *name;
adamc@1061	412 void *data;
adamc@1061	413 void (free)(void);
adamc@1061	414 } global;
adamc@1061	415
adamc@311	416 struct uw_context {
adamc@1094	417 uw_app *app;
adam@1446	418 int id;
adamc@1094	419
adamc@854	420 char (get_header)(void , const char );
adamc@854	421 void *get_header_data;
adamc@457	422
adam@1799	423 char (get_env)(void , const char );
adam@1799	424 void *get_env_data;
adam@1799	425
adam@1369	426 uw_buffer outHeaders, page, heap, script;
adam@1451	427 int allowed_to_return_indirectly, returning_indirectly;
adamc@759	428 input inputs, subinputs, *cur_container;
adamc@1094	429 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	430
adam@1446	431 unsigned long long source_count;
adamc@562	432
adamc@272	433 void *db;
adam@1931	434 int transaction_started;
adamc@272	435
adamc@167	436 jmp_buf jmp_buf;
adamc@167	437
adamc@323	438 regions *regions;
adamc@323	439
adamc@425	440 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	441
adamc@1094	442 const char *script_header;
adamc@643	443
adam@1936	444 int needs_push, needs_sig, could_write_db;
adamc@693	445
adamc@682	446 size_t n_deltas, used_deltas;
adamc@682	447 delta *deltas;
adamc@671	448
adamc@682	449 client *client;
adamc@682	450
adamc@771	451 transactional *transactionals;
adamc@771	452 size_t n_transactionals, used_transactionals;
adamc@771	453
adamc@1061	454 global *globals;
adamc@1061	455 size_t n_globals;
adamc@1061	456
adamc@1066	457 char *current_url;
adamc@1066	458
adamc@1114	459 int deadline;
adamc@1114	460
adamc@1121	461 void *client_data;
adamc@1121	462
adam@1334	463 void *logger_data;
adam@1334	464 uw_logger log_debug;
adam@1334	465
adam@1386	466 int isPost, hasPostBody;
adam@1347	467 uw_Basis_postBody postBody;
adam@1370	468 uw_Basis_string queryString;
adam@1347	469
adam@1556	470 unsigned nextId;
adam@1556	471
adam@1782	472 int amInitializing;
adam@1782	473
adamc@167	474 char error_message[ERROR_BUF_LEN];
adam@1877	475
adam@1877	476 int usedSig, needsResig;
adamc@117	477 };
adamc@117	478
adamc@1113	479 size_t uw_headers_max = SIZE_MAX;
adamc@1113	480 size_t uw_page_max = SIZE_MAX;
adamc@1113	481 size_t uw_heap_max = SIZE_MAX;
adamc@1113	482 size_t uw_script_max = SIZE_MAX;
adamc@1113	483
adam@1446	484 uw_context uw_init(int id, void *logger_data, uw_logger log_debug) {
adamc@311	485 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	486
adamc@1094	487 ctx->app = NULL;
adam@1446	488 ctx->id = id;
adamc@1094	489
adamc@854	490 ctx->get_header = NULL;
adamc@854	491 ctx->get_header_data = NULL;
adamc@457	492
adam@1799	493 ctx->get_env = NULL;
adam@1799	494 ctx->get_env_data = NULL;
adam@1799	495
adam@1413	496 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413	497 ctx->outHeaders.start[0] = 0;
adam@1413	498 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413	499 ctx->page.start[0] = 0;
adam@1451	500 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	501 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369	502 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667	503 ctx->script.start[0] = 0;
adamc@136	504
adamc@1094	505 ctx->inputs = malloc(0);
adamc@759	506 ctx->cur_container = NULL;
adamc@756	507 ctx->subinputs = malloc(0);
adamc@1094	508 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	509
adamc@272	510 ctx->db = NULL;
adam@1931	511 ctx->transaction_started = 0;
adamc@272	512
adamc@323	513 ctx->regions = NULL;
adamc@323	514
adamc@425	515 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	516
adamc@643	517 ctx->script_header = "";
adamc@693	518 ctx->needs_push = 0;
adamc@736	519 ctx->needs_sig = 0;
adam@1936	520 ctx->could_write_db = 1;
adamc@1104	521
adamc@565	522 ctx->source_count = 0;
adamc@562	523
adamc@682	524 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	525 ctx->deltas = malloc(0);
adamc@671	526
adamc@700	527 ctx->client = NULL;
adamc@700	528
adamc@700	529 ctx->error_message[0] = 0;
adamc@700	530
adamc@771	531 ctx->transactionals = malloc(0);
adamc@771	532 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	533
adamc@1061	534 ctx->globals = malloc(0);
adamc@1061	535 ctx->n_globals = 0;
adamc@1061	536
adamc@1066	537 ctx->current_url = "";
adamc@1066	538
adamc@1114	539 ctx->deadline = INT_MAX;
adamc@1114	540
adamc@1121	541 ctx->client_data = uw_init_client_data();
adamc@1121	542
adam@1334	543 ctx->logger_data = logger_data;
adam@1334	544 ctx->log_debug = log_debug;
adam@1334	545
adam@1386	546 ctx->isPost = ctx->hasPostBody = 0;
adam@1347	547
adam@1370	548 ctx->queryString = NULL;
adam@1370	549
adam@1556	550 ctx->nextId = 0;
adam@1556	551
adam@1782	552 ctx->amInitializing = 0;
adam@1782	553
adam@1877	554 ctx->usedSig = 0;
adam@1877	555 ctx->needsResig = 0;
adam@1877	556
adamc@117	557 return ctx;
adamc@106	558 }
adamc@106	559
adamc@1113	560 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	561
adamc@1121	562 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	563 return ctx->app;
adamc@1121	564 }
adamc@1121	565
adamc@1113	566 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	567 ctx->app = app;
adamc@1094	568
adamc@1105	569 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	570 if (app->inputs_len > uw_inputs_max)
adamc@1113	571 return 1;
adamc@1113	572
adamc@1094	573 ctx->sz_inputs = app->inputs_len;
adamc@1094	574 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	575 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	576 }
adamc@1134	577
adamc@1134	578 return 0;
adamc@1094	579 }
adamc@1094	580
adamc@1121	581 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	582 uw_copy_client_data(ctx->client_data, data);
adamc@1121	583 }
adamc@1121	584
adamc@311	585 void uw_set_db(uw_context ctx, void *db) {
adamc@272	586 ctx->db = db;
adamc@272	587 }
adamc@272	588
adamc@311	589 void *uw_get_db(uw_context ctx) {
adamc@272	590 return ctx->db;
adamc@272	591 }
adamc@272	592
adamc@311	593 void uw_free(uw_context ctx) {
adamc@671	594 size_t i;
adamc@671	595
adam@1369	596 uw_buffer_free(&ctx->outHeaders);
adam@1369	597 uw_buffer_free(&ctx->script);
adam@1369	598 uw_buffer_free(&ctx->page);
adam@1369	599 uw_buffer_free(&ctx->heap);
adamc@144	600 free(ctx->inputs);
adamc@756	601 free(ctx->subinputs);
adamc@425	602 free(ctx->cleanup);
adamc@771	603 free(ctx->transactionals);
adamc@1121	604 uw_free_client_data(ctx->client_data);
adamc@671	605
adamc@682	606 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	607 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	608 free(ctx->deltas);
adamc@671	609
adamc@1061	610 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	611 if (ctx->globals[i].free)
adamc@1089	612 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	613 free(ctx->globals);
adamc@1061	614
adamc@136	615 free(ctx);
adamc@136	616 }
adamc@136	617
adamc@562	618 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	619 uw_buffer_reset(&ctx->outHeaders);
adam@1369	620 uw_buffer_reset(&ctx->script);
adamc@667	621 ctx->script.start[0] = 0;
adam@1369	622 uw_buffer_reset(&ctx->page);
adam@1451	623 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	624 uw_buffer_reset(&ctx->heap);
adamc@323	625 ctx->regions = NULL;
adamc@425	626 ctx->cleanup_front = ctx->cleanup;
adamc@682	627 ctx->used_deltas = 0;
adamc@682	628 ctx->client = NULL;
adamc@759	629 ctx->cur_container = NULL;
adamc@771	630 ctx->used_transactionals = 0;
adamc@1117	631 ctx->script_header = "";
adam@1370	632 ctx->queryString = NULL;
adam@1556	633 ctx->nextId = 0;
adam@1782	634 ctx->amInitializing = 0;
adam@1877	635 ctx->usedSig = 0;
adam@1877	636 ctx->needsResig = 0;
adam@1931	637 ctx->transaction_started = 0;
adamc@167	638 }
adamc@167	639
adamc@562	640 void uw_reset_keep_request(uw_context ctx) {
adamc@562	641 uw_reset_keep_error_message(ctx);
adamc@562	642 ctx->error_message[0] = 0;
adamc@167	643 }
adamc@167	644
adamc@311	645 void uw_reset(uw_context ctx) {
adamc@311	646 uw_reset_keep_request(ctx);
adamc@1105	647 if (ctx->app)
adamc@1105	648 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	649 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461	650 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adamc@144	651 }
adamc@144	652
adamc@311	653 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	654 int r = setjmp(ctx->jmp_buf);
adamc@272	655
adamc@1105	656 if (r == 0 && ctx->app)
adamc@1094	657 ctx->app->db_init(ctx);
adamc@272	658
adamc@272	659 return r;
adamc@272	660 }
adamc@272	661
adamc@1118	662 void uw_close(uw_context ctx) {
adamc@1118	663 ctx->app->db_close(ctx);
adamc@1118	664 }
adamc@1118	665
adam@1446	666 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	667 return ctx->get_header(ctx->get_header_data, h);
adam@1446	668 }
adam@1446	669
adamc@854	670 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	671 ctx->get_header = get_header;
adamc@854	672 ctx->get_header_data = get_header_data;
adamc@742	673 }
adamc@742	674
adam@1799	675 void uw_set_env(uw_context ctx, char (get_env)(void , const char ), void *get_env_data) {
adam@1799	676 ctx->get_env = get_env;
adam@1799	677 ctx->get_env_data = get_env_data;
adam@1799	678 }
adam@1799	679
adamc@801	680 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	681 va_list ap;
adamc@801	682 va_start(ap, fmt);
adamc@801	683
adamc@801	684 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	685 }
adamc@801	686
adamc@1131	687 int uw_has_error(uw_context ctx) {
adamc@1131	688 return ctx->error_message[0] != 0;
adamc@1131	689 }
adamc@1131	690
adamc@311	691 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	692 cleanup *cl;
adamc@425	693
adamc@167	694 va_list ap;
adamc@167	695 va_start(ap, fmt);
adamc@167	696
adamc@167	697 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	698
adamc@425	699 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	700 cl->func(cl->arg);
adamc@425	701
adamc@425	702 ctx->cleanup_front = ctx->cleanup;
adamc@425	703
adamc@190	704 longjmp(ctx->jmp_buf, fk);
adamc@167	705 }
adamc@167	706
adamc@1113	707 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	708
adamc@425	709 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	710 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	711 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	712 if (len == 0)
adamc@425	713 newLen = 1;
adamc@425	714 else
adamc@428	715 newLen = len * 2;
adamc@1113	716
adamc@1134	717 if (newLen > uw_cleanup_max) {
adamc@1113	718 if (len+1 <= uw_cleanup_max)
adamc@1113	719 newLen = uw_cleanup_max;
adamc@1113	720 else
adamc@1113	721 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	722 }
adamc@1113	723
adamc@470	724 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	725 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	726 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	727 }
adamc@425	728
adamc@425	729 ctx->cleanup_front->func = func;
adamc@425	730 ctx->cleanup_front->arg = arg;
adamc@425	731 ++ctx->cleanup_front;
adamc@425	732 }
adamc@425	733
adam@1444	734 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	735
adamc@682	736 void uw_login(uw_context ctx) {
adamc@693	737 if (ctx->needs_push) {
adamc@682	738 char id_s, pass_s;
adamc@682	739
adamc@682	740 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682	741 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682	742 unsigned id = atoi(id_s);
adamc@682	743 int pass = atoi(pass_s);
adamc@682	744 client *c = find_client(id);
adamc@682	745
adamc@682	746 if (c == NULL)
adam@1444	747 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", uw_Basis_htmlifyString(ctx, id_s), uw_Basis_htmlifyString(ctx, pass_s));
adamc@682	748 else {
adamc@685	749 use_client(c);
adamc@682	750 ctx->client = c;
adamc@682	751
adamc@682	752 if (c->mode != USED)
adamc@682	753 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682	754 if (c->pass != pass)
adamc@682	755 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682	756 }
adamc@682	757 } else {
adamc@682	758 client *c = new_client();
adamc@1113	759
adamc@1113	760 if (c == NULL)
adamc@1113	761 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adamc@1113	762
adamc@685	763 use_client(c);
adamc@1121	764 uw_copy_client_data(c->data, ctx->client_data);
adamc@682	765 ctx->client = c;
adamc@864	766 }
adamc@682	767 }
adamc@682	768 }
adamc@682	769
adamc@671	770 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	771 int r = setjmp(ctx->jmp_buf);
adamc@671	772
adam@1931	773 if (r == 0)
adam@1931	774 ctx->app->handle(ctx, path);
adam@1931	775
adam@1931	776 return r;
adam@1931	777 }
adam@1931	778
adam@1931	779 void uw_ensure_transaction(uw_context ctx) {
adam@1931	780 if (!ctx->transaction_started) {
adam@1936	781 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adamc@671	782 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1931	783 ctx->transaction_started = 1;
adamc@671	784 }
adamc@671	785 }
adamc@671	786
adamc@772	787 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	788 if (ctx->client == NULL)
adamc@682	789 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	790
adamc@682	791 return ctx->client->id;
adamc@682	792 }
adamc@682	793
adamc@425	794 void uw_pop_cleanup(uw_context ctx) {
adamc@425	795 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	796 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	797
adamc@425	798 --ctx->cleanup_front;
adamc@425	799 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	800 }
adamc@425	801
adamc@311	802 char *uw_error_message(uw_context ctx) {
adamc@167	803 return ctx->error_message;
adamc@167	804 }
adamc@167	805
adamc@1115	806 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	807 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	808 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	809 }
adamc@1115	810
adamc@759	811 static input *INP(uw_context ctx) {
adamc@759	812 if (ctx->cur_container == NULL)
adamc@759	813 return ctx->inputs;
adamc@759	814 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	815 return ctx->cur_container->data.subform.fields;
adamc@759	816 else if (ctx->cur_container->kind == ENTRY)
adamc@759	817 return ctx->cur_container->data.entry.fields;
adamc@759	818 else
adamc@760	819 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	820 }
adamc@759	821
adamc@760	822 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	823 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	824 *ptr += new_start - old_start;
adamc@760	825 }
adamc@760	826
adamc@760	827 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	828 switch (x->kind) {
adamc@759	829 case SUBFORM:
adamc@760	830 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	831 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	832 break;
adamc@759	833 case SUBFORMS:
adamc@760	834 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	835 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	836 break;
adamc@759	837 case ENTRY:
adamc@760	838 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	839 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	840 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	841 break;
adamc@1134	842 default:
adamc@1134	843 break;
adamc@759	844 }
adamc@759	845 }
adamc@759	846
adamc@1113	847 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	848
adamc@759	849 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	850 size_t i;
adamc@759	851 input *r;
adamc@759	852
adamc@759	853 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	854 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	855 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	856
adamc@759	857 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	858
adamc@760	859 if (ctx->subinputs != new_subinputs) {
adamc@760	860 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	861 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	862 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	863 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	864
adamc@760	865 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	866
adamc@760	867 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	868 ctx->subinputs = new_subinputs;
adamc@760	869 }
adamc@759	870 }
adamc@759	871
adamc@759	872 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	873
adamc@759	874 for (i = 0; i < len; ++i)
adam@1474	875 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	876
adamc@759	877 return r;
adamc@759	878 }
adamc@756	879
adamc@801	880 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	881 //printf("Input name %s\n", name);
adamc@1038	882
adamc@756	883 if (!strcasecmp(name, ".b")) {
adamc@1094	884 int n = ctx->app->input_num(value);
adamc@756	885 input *inps;
adamc@756	886
adamc@801	887 if (n < 0) {
adam@1444	888 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	889 return -1;
adamc@801	890 }
adamc@801	891
adamc@1094	892 if (n >= ctx->app->inputs_len) {
adam@1444	893 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	894 return -1;
adamc@801	895 }
adamc@756	896
adamc@1094	897 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	898
adamc@759	899 INP(ctx)[n].kind = SUBFORM;
adamc@759	900 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	901 INP(ctx)[n].data.subform.fields = inps;
adamc@759	902 ctx->cur_container = &INP(ctx)[n];
adamc@756	903 } else if (!strcasecmp(name, ".e")) {
adamc@756	904 input *tmp;
adamc@756	905
adamc@801	906 if (ctx->cur_container == NULL) {
adamc@801	907 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	908 return -1;
adamc@801	909 }
adamc@756	910
adamc@759	911 tmp = ctx->cur_container;
adamc@759	912 switch (tmp->kind) {
adamc@759	913 case SUBFORM:
adamc@759	914 ctx->cur_container = tmp->data.subform.parent;
adamc@759	915 tmp->data.subform.parent = NULL;
adamc@759	916 break;
adamc@759	917 case SUBFORMS:
adamc@759	918 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	919 tmp->data.subforms.parent = NULL;
adamc@759	920 break;
adamc@759	921 case ENTRY:
adamc@759	922 ctx->cur_container = tmp->data.entry.parent;
adamc@759	923 break;
adamc@759	924 default:
adamc@801	925 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	926 return -1;
adamc@759	927 }
adamc@759	928 } else if (!strcasecmp(name, ".s")) {
adamc@1094	929 int n = ctx->app->input_num(value);
adamc@759	930
adamc@801	931 if (n < 0) {
adam@1444	932 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	933 return -1;
adamc@801	934 }
adamc@801	935
adamc@1094	936 if (n >= ctx->app->inputs_len) {
adam@1444	937 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	938 return -1;
adamc@801	939 }
adamc@759	940
adamc@759	941 INP(ctx)[n].kind = SUBFORMS;
adamc@759	942 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	943 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	944 ctx->cur_container = &INP(ctx)[n];
adamc@759	945 } else if (!strcasecmp(name, ".i")) {
adamc@759	946 input *inps;
adamc@759	947
adamc@801	948 if (!ctx->cur_container) {
adamc@801	949 uw_set_error(ctx, "New entry without container");
adamc@801	950 return -1;
adamc@801	951 }
adamc@801	952
adamc@801	953 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	954 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	955 return -1;
adamc@801	956 }
adamc@759	957
adamc@1094	958 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	959
adamc@759	960 inps->kind = ENTRY;
adamc@759	961 inps->data.entry.parent = ctx->cur_container;
adamc@759	962 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	963 ctx->cur_container->data.subforms.entries = inps;
adamc@759	964
adamc@759	965 inps->data.entry.fields = inps+1;
adamc@759	966 ctx->cur_container = inps;
adamc@756	967 } else {
adamc@1094	968 int n = ctx->app->input_num(name);
adamc@756	969
adam@1384	970 if (n < 0)
adam@1384	971 return 0;
adamc@801	972
adamc@1094	973 if (n >= ctx->app->inputs_len) {
adam@1444	974 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	975 return -1;
adamc@801	976 }
adamc@756	977
adamc@756	978 INP(ctx)[n].kind = NORMAL;
adamc@756	979 INP(ctx)[n].data.normal = value;
adamc@756	980 }
adamc@801	981
adamc@801	982 return 0;
adamc@144	983 }
adamc@144	984
adamc@311	985 char *uw_get_input(uw_context ctx, int n) {
adamc@169	986 if (n < 0)
adamc@311	987 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	988 if (n >= ctx->app->inputs_len)
adamc@311	989 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	990
adamc@756	991 switch (INP(ctx)[n].kind) {
adamc@737	992 case UNSET:
adamc@737	993 return NULL;
adamc@739	994 case FIL:
adamc@739	995 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	996 case SUBFORM:
adamc@756	997 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	998 case SUBFORMS:
adamc@759	999 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1000 case ENTRY:
adamc@759	1001 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1002 case NORMAL:
adamc@756	1003 return INP(ctx)[n].data.normal;
adamc@737	1004 default:
adamc@737	1005 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1006 }
adamc@138	1007 }
adamc@138	1008
adamc@311	1009 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	1010 if (n < 0)
adamc@311	1011 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1012 if (n >= ctx->app->inputs_len)
adamc@311	1013 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1014
adamc@756	1015 switch (INP(ctx)[n].kind) {
adamc@737	1016 case UNSET:
adamc@737	1017 return "";
adamc@739	1018 case FIL:
adamc@739	1019 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1020 case SUBFORM:
adamc@756	1021 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1022 case SUBFORMS:
adamc@759	1023 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1024 case ENTRY:
adamc@759	1025 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1026 case NORMAL:
adamc@756	1027 return INP(ctx)[n].data.normal;
adamc@737	1028 default:
adamc@737	1029 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1030 }
adamc@737	1031 }
adamc@737	1032
adamc@801	1033 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1034 int n = ctx->app->input_num(name);
adamc@737	1035
adamc@801	1036 if (n < 0) {
adam@1444	1037 uw_set_error(ctx, "Bad file input name %s", uw_Basis_htmlifyString(ctx, name));
adamc@801	1038 return -1;
adamc@801	1039 }
adamc@801	1040
adamc@1094	1041 if (n >= ctx->app->inputs_len) {
adam@1444	1042 uw_set_error(ctx, "For file input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	1043 return -1;
adamc@801	1044 }
adamc@737	1045
adamc@739	1046 ctx->inputs[n].kind = FIL;
adamc@739	1047 ctx->inputs[n].data.file = f;
adamc@801	1048
adamc@801	1049 return 0;
adamc@737	1050 }
adamc@737	1051
adamc@739	1052 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1053
adamc@739	1054 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1055 if (n < 0)
adamc@737	1056 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1057 if (n >= ctx->app->inputs_len)
adamc@737	1058 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1059
adamc@756	1060 switch (INP(ctx)[n].kind) {
adamc@737	1061 case UNSET:
adamc@737	1062 {
adamc@739	1063 char *data = uw_malloc(ctx, 0);
adamc@740	1064 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1065 return f;
adamc@737	1066 }
adamc@739	1067 case FIL:
adamc@756	1068 return INP(ctx)[n].data.file;
adamc@737	1069 case NORMAL:
adamc@737	1070 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1071 case SUBFORM:
adamc@756	1072 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1073 case SUBFORMS:
adamc@759	1074 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1075 case ENTRY:
adamc@759	1076 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1077 default:
adamc@737	1078 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1079 }
adamc@190	1080 }
adamc@190	1081
adamc@756	1082 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1083 if (n < 0)
adamc@756	1084 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1085 if (n >= ctx->app->inputs_len)
adamc@756	1086 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1087
adamc@756	1088 switch (INP(ctx)[n].kind) {
adamc@756	1089 case UNSET:
adamc@756	1090 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1091 case FIL:
adamc@756	1092 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1093 case NORMAL:
adamc@756	1094 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1095 case SUBFORMS:
adamc@759	1096 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1097 case ENTRY:
adamc@759	1098 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1099 case SUBFORM:
adamc@759	1100 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1101 ctx->cur_container = &INP(ctx)[n];
adamc@756	1102 return;
adamc@756	1103 default:
adamc@756	1104 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1105 }
adamc@756	1106 }
adamc@756	1107
adamc@756	1108 void uw_leave_subform(uw_context ctx) {
adamc@756	1109 input *tmp;
adamc@756	1110
adamc@759	1111 if (ctx->cur_container == NULL)
adamc@756	1112 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1113
adamc@759	1114 tmp = ctx->cur_container;
adamc@759	1115 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1116 tmp->data.subform.parent = NULL;
adamc@759	1117 }
adamc@759	1118
adamc@759	1119 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1120 input *inps;
adamc@759	1121
adamc@759	1122 if (n < 0)
adamc@759	1123 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1124 if (n >= ctx->app->inputs_len)
adamc@759	1125 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1126
adamc@759	1127 switch (INP(ctx)[n].kind) {
adamc@759	1128 case UNSET:
adamc@759	1129 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1130 case FIL:
adamc@759	1131 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1132 case NORMAL:
adamc@759	1133 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1134 case SUBFORM:
adamc@759	1135 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1136 case ENTRY:
adamc@759	1137 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1138 case SUBFORMS:
adamc@759	1139 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1140 if (inps) {
adamc@759	1141 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1142 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1143 return 1;
adamc@759	1144 } else
adamc@759	1145 return 0;
adamc@759	1146 default:
adamc@759	1147 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1148 }
adamc@759	1149 }
adamc@759	1150
adamc@759	1151 int uw_next_entry(uw_context ctx) {
adamc@759	1152 if (ctx->cur_container == NULL)
adamc@759	1153 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1154
adamc@759	1155 switch (ctx->cur_container->kind) {
adamc@759	1156 case UNSET:
adamc@759	1157 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1158 case FIL:
adamc@759	1159 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1160 case NORMAL:
adamc@759	1161 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1162 case SUBFORM:
adamc@759	1163 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1164 case SUBFORMS:
adamc@759	1165 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1166 case ENTRY:
adamc@759	1167 if (ctx->cur_container->data.entry.next) {
adamc@759	1168 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1169 return 1;
adamc@759	1170 } else {
adamc@759	1171 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1172 return 0;
adamc@759	1173 }
adamc@759	1174 default:
adamc@759	1175 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1176 }
adamc@756	1177 }
adamc@756	1178
adamc@643	1179 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1180 ctx->script_header = s;
adamc@643	1181 }
adamc@643	1182
adamc@1094	1183 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1184 return ctx->app->url_prefix;
adamc@667	1185 }
adamc@667	1186
adamc@693	1187 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1188 ctx->needs_push = n;
adamc@693	1189 }
adamc@693	1190
adamc@736	1191 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1192 ctx->needs_sig = n;
adamc@736	1193 }
adamc@736	1194
adam@1936	1195 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936	1196 ctx->could_write_db = n;
adam@1936	1197 }
adam@1936	1198
adamc@667	1199
adam@1369	1200 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1201 if (b->back - b->front < extra) {
adamc@666	1202 size_t desired = b->front - b->start + extra, next;
adamc@136	1203 char *new_heap;
adamc@136	1204
adamc@666	1205 next = b->back - b->start;
adamc@317	1206 if (next == 0)
adamc@317	1207 next = 1;
adamc@317	1208 for (; next < desired; next *= 2);
adamc@136	1209
adamc@1134	1210 if (next > b->max) {
adamc@1113	1211 if (desired <= b->max)
adamc@1113	1212 next = desired;
adamc@1113	1213 else
adamc@1113	1214 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1215 }
adamc@1113	1216
adamc@666	1217 new_heap = realloc(b->start, next);
adamc@666	1218 b->front = new_heap + (b->front - b->start);
adamc@666	1219 b->back = new_heap + next;
adamc@136	1220
adamc@667	1221 if (new_heap != b->start) {
adamc@666	1222 b->start = new_heap;
adam@1389	1223 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1224 }
adamc@136	1225
adamc@666	1226 b->start = new_heap;
adamc@136	1227 }
adamc@136	1228 }
adamc@136	1229
adamc@832	1230 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1231 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1232 }
adamc@666	1233
adamc@832	1234 char *uw_heap_front(uw_context ctx) {
adamc@832	1235 return ctx->heap.front;
adamc@832	1236 }
adamc@832	1237
adamc@832	1238 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1239 ctx->heap.front = fr;
adamc@832	1240 }
adamc@832	1241
adam@1782	1242 void uw_begin_initializing(uw_context ctx) {
adam@1782	1243 ctx->amInitializing = 1;
adam@1782	1244 }
adam@1782	1245
adam@1782	1246 void uw_end_initializing(uw_context ctx) {
adam@1782	1247 ctx->amInitializing = 0;
adam@1782	1248 }
adam@1782	1249
adamc@311	1250 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136	1251 void *result;
adamc@136	1252
adam@1782	1253 if (ctx->amInitializing) {
adam@1782	1254 result = malloc(len);
adam@1782	1255
adam@1782	1256 if (result)
adam@1782	1257 return result;
adam@1782	1258 else
adam@1782	1259 uw_error(ctx, FATAL, "uw_malloc: malloc() returns 0");
adam@1782	1260 } else {
adam@1782	1261 uw_check_heap(ctx, len);
adam@1782	1262
adam@1782	1263 result = ctx->heap.front;
adam@1782	1264 ctx->heap.front += len;
adam@1782	1265 return result;
adam@1782	1266 }
adamc@117	1267 }
adamc@117	1268
adamc@323	1269 void uw_begin_region(uw_context ctx) {
adamc@666	1270 regions r = (regions ) ctx->heap.front;
adamc@323	1271
adamc@323	1272 uw_check_heap(ctx, sizeof(regions));
adamc@323	1273
adamc@666	1274 ctx->heap.front += sizeof(regions);
adamc@323	1275
adamc@323	1276 r->next = ctx->regions;
adamc@323	1277 ctx->regions = r;
adamc@323	1278 }
adamc@323	1279
adamc@323	1280 void uw_end_region(uw_context ctx) {
adamc@323	1281 regions *r = ctx->regions;
adamc@323	1282
adamc@323	1283 if (r == NULL)
adamc@323	1284 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1285
adamc@666	1286 ctx->heap.front = (char *) r;
adamc@323	1287 ctx->regions = r->next;
adamc@323	1288 }
adamc@323	1289
adamc@324	1290 void uw_memstats(uw_context ctx) {
adam@1369	1291 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1292 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1293 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1294 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1295 }
adamc@324	1296
adam@1915	1297 int uw_pagelen(uw_context ctx) {
adam@1915	1298 return ctx->page.front - ctx->page.start;
adam@1915	1299 }
adam@1915	1300
adamc@311	1301 int uw_send(uw_context ctx, int sock) {
adamc@666	1302 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462	1303
adamc@462	1304 if (n < 0)
adamc@462	1305 return n;
adamc@462	1306
adamc@462	1307 n = uw_really_send(sock, "\r\n", 2);
adamc@462	1308
adamc@462	1309 if (n < 0)
adamc@462	1310 return n;
adamc@462	1311
adamc@666	1312 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462	1313 }
adamc@462	1314
adamc@856	1315 int uw_print(uw_context ctx, int fd) {
adamc@856	1316 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1317
adamc@856	1318 if (n < 0)
adamc@856	1319 return n;
adamc@856	1320
adamc@856	1321 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1322
adamc@856	1323 if (n < 0)
adamc@856	1324 return n;
adamc@856	1325
adamc@856	1326 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1327 }
adamc@856	1328
adamc@860	1329 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1330 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1331
adamc@860	1332 if (n < 0)
adamc@860	1333 return n;
adamc@860	1334
adamc@860	1335 n = output(data, "\r\n", 2);
adamc@860	1336
adamc@860	1337 if (n < 0)
adamc@860	1338 return n;
adamc@860	1339
adamc@860	1340 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1341 }
adamc@860	1342
adamc@462	1343 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1344 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1345 }
adamc@462	1346
adamc@462	1347 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1348 int len = strlen(s);
adamc@462	1349
adamc@462	1350 uw_check_headers(ctx, len + 1);
adamc@666	1351 strcpy(ctx->outHeaders.front, s);
adamc@666	1352 ctx->outHeaders.front += len;
adamc@562	1353 }
adamc@562	1354
adam@1934	1355 int uw_has_contentLength(uw_context ctx) {
adam@1934	1356 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934	1357 }
adam@1934	1358
adamc@1110	1359 void uw_clear_headers(uw_context ctx) {
adam@1369	1360 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1361 }
adamc@1110	1362
adam@1932	1363 void uw_Basis_clear_page(uw_context ctx) {
adam@1932	1364 uw_buffer_reset(&ctx->page);
adam@1932	1365 }
adam@1932	1366
adamc@562	1367 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1368 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1369 }
adamc@562	1370
adamc@562	1371 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1372 int len = strlen(s);
adamc@562	1373
adamc@562	1374 uw_check_script(ctx, len + 1);
adamc@666	1375 strcpy(ctx->script.front, s);
adamc@666	1376 ctx->script.front += len;
adamc@562	1377 }
adamc@562	1378
adam@1446	1379 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1380 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1381 uw_write_script(ctx, "sig=\"");
adam@1671	1382 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1383 uw_write_script(ctx, "\";");
adam@1671	1384 }
adam@1671	1385
adam@1446	1386 return ctx->script.start;
adam@1446	1387 }
adam@1446	1388
adamc@695	1389 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1390 if (s[0] == 0)
adamc@695	1391 return "";
adamc@695	1392 else {
adamc@695	1393 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1394 sprintf(r, " onload='%s'", s);
adamc@695	1395 return r;
adamc@695	1396 }
adamc@695	1397 }
adamc@695	1398
adamc@1042	1399 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1400 if (ctx->script_header[0] == 0)
adamc@1042	1401 return "";
adamc@1042	1402 else {
vshabanoff@1763	1403 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763	1404 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042	1405 return r;
adamc@1042	1406 }
adamc@1042	1407 }
adamc@1042	1408
adamc@694	1409 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1410 if (ctx->client == NULL) {
adamc@736	1411 if (ctx->needs_sig) {
adamc@1094	1412 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1413 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1414 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1415 return r;
adamc@736	1416 }
adamc@736	1417 else
adamc@736	1418 return "";
adamc@736	1419 } else {
adamc@1094	1420 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1421 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1422 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1423 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1424 (ctx->isPost ? "true" : "false"),
adamc@682	1425 ctx->client->id,
adamc@682	1426 ctx->client->pass,
adamc@1094	1427 ctx->app->url_prefix,
adamc@1094	1428 ctx->app->timeout,
adamc@736	1429 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1430 sig,
adamc@736	1431 ctx->needs_sig ? "\";" : "");
adamc@679	1432 return r;
adamc@668	1433 }
adamc@667	1434 }
adamc@667	1435
adamc@574	1436 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1437 char r, s2;
adamc@574	1438
adam@1446	1439 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1440
adamc@666	1441 r = s2 = ctx->heap.front;
adamc@574	1442 *s2++ = '"';
adamc@574	1443
adamc@574	1444 for (; *s; s++) {
adam@1286	1445 unsigned char c = *s;
adamc@574	1446
adamc@574	1447 switch (c) {
adamc@574	1448 case '"':
adamc@574	1449 strcpy(s2, "\\\"");
adamc@574	1450 s2 += 2;
adamc@574	1451 break;
adamc@1027	1452 case '\'':
adamc@1027	1453 strcpy(s2, "\\047");
adamc@1027	1454 s2 += 4;
adamc@1027	1455 break;
adamc@574	1456 case '\\':
adamc@574	1457 strcpy(s2, "\\\\");
adamc@574	1458 s2 += 2;
adamc@574	1459 break;
adam@1457	1460 case '<':
adam@1457	1461 strcpy(s2, "\\074");
adam@1457	1462 s2 += 4;
adam@1457	1463 break;
adamc@574	1464 default:
adam@1286	1465 if (isprint((int)c) \|\| c >= 128)
adamc@574	1466 *s2++ = c;
adamc@574	1467 else {
adam@1429	1468 sprintf(s2, "\\%03o", c);
adamc@574	1469 s2 += 4;
adamc@574	1470 }
adamc@574	1471 }
adamc@574	1472 }
adamc@574	1473
adamc@574	1474 strcpy(s2, "\"");
adamc@910	1475 ctx->heap.front = s2 + 2;
adamc@574	1476 return r;
adamc@574	1477 }
adamc@574	1478
adam@1286	1479 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1480 unsigned char c = c1;
adamc@1025	1481 char r, s2;
adamc@1025	1482
adam@1446	1483 uw_check_heap(ctx, 7);
adamc@1025	1484
adamc@1025	1485 r = s2 = ctx->heap.front;
adamc@1025	1486 *s2++ = '"';
adamc@1025	1487
adamc@1025	1488 switch (c) {
adamc@1025	1489 case '"':
adamc@1025	1490 strcpy(s2, "\\\"");
adamc@1025	1491 s2 += 2;
adamc@1025	1492 break;
adamc@1027	1493 case '\'':
adamc@1027	1494 strcpy(s2, "\\047");
adamc@1027	1495 s2 += 4;
adamc@1027	1496 break;
adamc@1025	1497 case '\\':
adamc@1025	1498 strcpy(s2, "\\\\");
adamc@1025	1499 s2 += 2;
adamc@1025	1500 break;
adam@1457	1501 case '<':
adam@1457	1502 strcpy(s2, "\\074");
adam@1457	1503 s2 += 4;
adam@1457	1504 break;
adamc@1025	1505 default:
adam@1286	1506 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1507 *s2++ = c;
adamc@1025	1508 else {
adam@1429	1509 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1510 s2 += 4;
adamc@1025	1511 }
adamc@1025	1512 }
adamc@1025	1513
adamc@1025	1514 strcpy(s2, "\"");
adamc@1025	1515 ctx->heap.front = s2 + 2;
adamc@1025	1516 return r;
adamc@1025	1517 }
adamc@1025	1518
adamc@574	1519 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1520 char r, s2;
adamc@574	1521
adam@1446	1522 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1523
adamc@666	1524 r = s2 = ctx->script.front;
adamc@574	1525 *s2++ = '"';
adamc@574	1526
adamc@574	1527 for (; *s; s++) {
adam@1286	1528 unsigned char c = *s;
adamc@574	1529
adamc@574	1530 switch (c) {
adamc@577	1531 case '\'':
adamc@1027	1532 strcpy(s2, "\\");
adamc@574	1533 s2 += 2;
adamc@574	1534 break;
adamc@574	1535 case '\\':
adamc@574	1536 strcpy(s2, "\\\\");
adamc@574	1537 s2 += 2;
adamc@574	1538 break;
adam@1457	1539 case '<':
adam@1457	1540 strcpy(s2, "\\074");
adam@1457	1541 s2 += 4;
adam@1457	1542 break;
adamc@574	1543 default:
adam@1286	1544 if (isprint((int)c) \|\| c >= 128)
adamc@574	1545 *s2++ = c;
adamc@574	1546 else {
adam@1429	1547 sprintf(s2, "\\%03o", c);
adamc@574	1548 s2 += 4;
adamc@574	1549 }
adamc@574	1550 }
adamc@574	1551 }
adamc@574	1552
adamc@574	1553 strcpy(s2, "\"");
adamc@666	1554 ctx->script.front = s2 + 1;
adamc@574	1555 return r;
adamc@574	1556 }
adamc@574	1557
adamc@682	1558 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1559 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1560 return "null";
adamc@682	1561 else {
adamc@682	1562 int len;
adamc@682	1563 char *r;
adamc@682	1564
adamc@682	1565 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1566 r = ctx->heap.front;
adamc@682	1567 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1568 ctx->heap.front += len+1;
adamc@682	1569 return r;
adamc@682	1570 }
adamc@682	1571 }
adamc@682	1572
adam@1446	1573 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1574 int len;
adamc@577	1575 size_t s_len = strlen(s);
adamc@562	1576
adam@1446	1577 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1578 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1579 ctx->script.front += len;
adamc@666	1580 strcpy(ctx->script.front, s);
adamc@666	1581 ctx->script.front += s_len;
adamc@970	1582 strcpy(ctx->script.front, "));");
adamc@972	1583 ctx->script.front += 3;
adamc@562	1584
adam@1446	1585 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1586 return r;
adam@1446	1587 }
adam@1446	1588
adam@1446	1589 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1590 int len;
adamc@577	1591 size_t s_len = strlen(s);
adamc@577	1592
adam@1446	1593 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1594 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1595 ctx->script.front += len;
adamc@666	1596 strcpy(ctx->script.front, s);
adamc@666	1597 ctx->script.front += s_len;
adamc@970	1598 strcpy(ctx->script.front, "));");
adamc@972	1599 ctx->script.front += 3;
adamc@577	1600
adamc@577	1601 return uw_unit_v;
adamc@577	1602 }
adamc@577	1603
adamc@311	1604 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1605 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1606 }
adamc@117	1607
adamc@311	1608 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1609 *(ctx->page.front)++ = c;
adam@1413	1610 *ctx->page.front = 0;
adamc@117	1611 }
adamc@117	1612
adamc@311	1613 void uw_writec(uw_context ctx, char c) {
adam@1413	1614 uw_check(ctx, 2);
adamc@311	1615 uw_writec_unsafe(ctx, c);
adamc@117	1616 }
adamc@117	1617
adamc@311	1618 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1619 int len = strlen(s);
adamc@666	1620 memcpy(ctx->page.front, s, len);
adamc@666	1621 ctx->page.front += len;
adamc@117	1622 }
adamc@117	1623
adamc@311	1624 void uw_write(uw_context ctx, const char* s) {
adamc@311	1625 uw_check(ctx, strlen(s) + 1);
adamc@311	1626 uw_write_unsafe(ctx, s);
adamc@666	1627 *ctx->page.front = 0;
adamc@102	1628 }
adamc@106	1629
adamc@311	1630 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1631 char *result;
adamc@136	1632 int len;
adamc@311	1633 uw_check_heap(ctx, INTS_MAX);
adamc@666	1634 result = ctx->heap.front;
adamc@276	1635 sprintf(result, "%lld%n", n, &len);
adamc@666	1636 ctx->heap.front += len+1;
adamc@136	1637 return result;
adamc@106	1638 }
adamc@106	1639
adamc@311	1640 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1641 char *result;
adamc@136	1642 int len;
adamc@311	1643 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1644 result = ctx->heap.front;
adam@1920	1645 sprintf(result, "%.16g%n", n, &len);
adamc@666	1646 ctx->heap.front += len+1;
adamc@136	1647 return result;
adamc@106	1648 }
adamc@106	1649
adamc@311	1650 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1651 int len = strlen(s);
adamc@136	1652 char result, p;
adamc@311	1653 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1654
adamc@666	1655 result = p = ctx->heap.front;
adamc@136	1656
adamc@136	1657 for (; *s; s++) {
adamc@1054	1658 unsigned char c = *s;
adamc@136	1659
adamc@136	1660 if (c == '"') {
adamc@136	1661 strcpy(p, """);
adamc@136	1662 p += 6;
adamc@136	1663 } else if (c == '&') {
adamc@136	1664 strcpy(p, "&");
adamc@136	1665 p += 5;
adamc@136	1666 }
adamc@1059	1667 else
adamc@136	1668 *p++ = c;
adamc@136	1669 }
adamc@136	1670
adamc@137	1671 *p++ = 0;
adamc@666	1672 ctx->heap.front = p;
adamc@136	1673 return result;
adamc@106	1674 }
adamc@106	1675
adamc@1011	1676 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1677 char result, p;
adamc@1011	1678 uw_check_heap(ctx, 7);
adamc@1011	1679
adamc@1011	1680 result = p = ctx->heap.front;
adamc@1011	1681
adamc@1011	1682 if (c == '"') {
adamc@1011	1683 strcpy(p, """);
adamc@1011	1684 p += 6;
adamc@1011	1685 } else if (c == '&') {
adamc@1011	1686 strcpy(p, "&");
adamc@1011	1687 p += 5;
adamc@1011	1688 }
adamc@1059	1689 else
adamc@1011	1690 *p++ = c;
adamc@1011	1691
adamc@1011	1692 *p++ = 0;
adamc@1011	1693 ctx->heap.front = p;
adamc@1011	1694 return result;
adamc@1011	1695 }
adamc@1011	1696
adamc@721	1697 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1698 return s;
adamc@721	1699 }
adamc@721	1700
adamc@311	1701 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1702 int len;
adamc@117	1703
adamc@666	1704 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1705 ctx->page.front += len;
adamc@106	1706 }
adamc@106	1707
adamc@428	1708 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1709 uw_check(ctx, INTS_MAX);
adamc@311	1710 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1711
adamc@428	1712 return uw_unit_v;
adamc@106	1713 }
adamc@106	1714
adamc@428	1715 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1716 int len;
adamc@117	1717
adamc@311	1718 uw_check(ctx, FLOATS_MAX);
adamc@666	1719 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1720 ctx->page.front += len;
adamc@428	1721
adamc@428	1722 return uw_unit_v;
adamc@117	1723 }
adamc@117	1724
adamc@428	1725 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1726 uw_check(ctx, strlen(s) * 6);
adamc@117	1727
adamc@106	1728 for (; *s; s++) {
adamc@1054	1729 unsigned char c = *s;
adamc@106	1730
adamc@106	1731 if (c == '"')
adamc@311	1732 uw_write_unsafe(ctx, """);
adamc@136	1733 else if (c == '&')
adamc@311	1734 uw_write_unsafe(ctx, "&");
adamc@1059	1735 else
adamc@311	1736 uw_writec_unsafe(ctx, c);
adamc@106	1737 }
adamc@428	1738
adamc@428	1739 return uw_unit_v;
adamc@106	1740 }
adamc@120	1741
adamc@1011	1742 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1743 uw_check(ctx, 6);
adamc@1011	1744
adamc@1011	1745 if (c == '"')
adamc@1011	1746 uw_write_unsafe(ctx, """);
adamc@1011	1747 else if (c == '&')
adamc@1011	1748 uw_write_unsafe(ctx, "&");
adamc@1059	1749 else
adamc@1011	1750 uw_writec_unsafe(ctx, c);
adamc@1011	1751
adamc@1011	1752 return uw_unit_v;
adamc@1011	1753 }
adamc@1011	1754
adamc@120	1755
adamc@311	1756 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1757 int len;
adamc@137	1758 char *r;
adamc@137	1759
adamc@311	1760 uw_check_heap(ctx, INTS_MAX);
adamc@666	1761 r = ctx->heap.front;
adamc@276	1762 sprintf(r, "%lld%n", n, &len);
adamc@666	1763 ctx->heap.front += len+1;
adamc@137	1764 return r;
adamc@120	1765 }
adamc@120	1766
adamc@682	1767 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1768 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1769 return "";
adamc@682	1770 else {
adamc@682	1771 int len;
adamc@682	1772 char *r;
adamc@679	1773
adamc@682	1774 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1775 r = ctx->heap.front;
adamc@682	1776 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1777 ctx->heap.front += len+1;
adamc@682	1778 return r;
adamc@682	1779 }
adamc@679	1780 }
adamc@679	1781
adamc@311	1782 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1783 int len;
adamc@137	1784 char *r;
adamc@137	1785
adamc@311	1786 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1787 r = ctx->heap.front;
adamc@137	1788 sprintf(r, "%g%n", n, &len);
adamc@666	1789 ctx->heap.front += len+1;
adamc@137	1790 return r;
adamc@120	1791 }
adamc@120	1792
adamc@311	1793 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1794 char r, p;
adamc@137	1795
adamc@925	1796 if (s[0] == '\0')
adamc@925	1797 return "_";
adamc@925	1798
adamc@925	1799 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1800
adamc@925	1801 r = p = ctx->heap.front;
adamc@925	1802 if (s[0] == '_')
adamc@925	1803 *p++ = '_';
adamc@925	1804
adamc@925	1805 for (; *s; s++) {
adamc@1087	1806 unsigned char c = *s;
adamc@137	1807
adamc@137	1808 if (c == ' ')
adamc@137	1809 *p++ = '+';
adamc@137	1810 else if (isalnum(c))
adamc@137	1811 *p++ = c;
adamc@137	1812 else {
adamc@1259	1813 sprintf(p, ".%02X", c);
adamc@137	1814 p += 3;
adamc@137	1815 }
adamc@137	1816 }
adamc@137	1817
adamc@137	1818 *p++ = 0;
adamc@666	1819 ctx->heap.front = p;
adamc@137	1820 return r;
adamc@120	1821 }
adamc@120	1822
adamc@311	1823 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1824 if (b == uw_Basis_False)
adamc@186	1825 return "0";
adamc@186	1826 else
adamc@186	1827 return "1";
adamc@186	1828 }
adamc@186	1829
adam@1620	1830 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1831 char *r;
adam@1620	1832 int len;
adam@1620	1833 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1834 r = ctx->heap.front;
adam@1620	1835 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1836 ctx->heap.front += len+1;
adam@1620	1837 return r;
adam@1620	1838 }
adam@1620	1839
adamc@311	1840 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1841 int len;
adamc@120	1842
adamc@666	1843 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1844 ctx->page.front += len;
adamc@120	1845 }
adamc@120	1846
adamc@428	1847 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1848 uw_check(ctx, INTS_MAX);
adamc@311	1849 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1850
adamc@428	1851 return uw_unit_v;
adamc@120	1852 }
adamc@120	1853
adamc@682	1854 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1855 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1856 int len;
adamc@682	1857
adamc@682	1858 uw_check(ctx, INTS_MAX + 1);
adamc@682	1859 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1860 ctx->page.front += len;
adamc@682	1861 }
adamc@682	1862
adamc@679	1863 return uw_unit_v;
adamc@679	1864 }
adamc@679	1865
adamc@428	1866 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1867 int len;
adamc@120	1868
adamc@311	1869 uw_check(ctx, FLOATS_MAX);
adamc@666	1870 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1871 ctx->page.front += len;
adamc@428	1872
adamc@428	1873 return uw_unit_v;
adamc@120	1874 }
adamc@120	1875
adamc@488	1876 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1877 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1878 }
adamc@488	1879
adam@1404	1880 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1881 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1882 }
adam@1404	1883
adamc@428	1884 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1885 if (s[0] == '\0') {
adamc@925	1886 uw_check(ctx, 1);
adamc@925	1887 uw_writec_unsafe(ctx, '_');
adamc@925	1888 return uw_unit_v;
adamc@925	1889 }
adamc@925	1890
adamc@925	1891 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1892
adamc@925	1893 if (s[0] == '_')
adamc@925	1894 uw_writec_unsafe(ctx, '_');
adamc@120	1895
adamc@120	1896 for (; *s; s++) {
adamc@1087	1897 unsigned char c = *s;
adamc@120	1898
adamc@120	1899 if (c == ' ')
adamc@311	1900 uw_writec_unsafe(ctx, '+');
adamc@120	1901 else if (isalnum(c))
adamc@311	1902 uw_writec_unsafe(ctx, c);
adamc@120	1903 else {
adamc@1259	1904 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1905 ctx->page.front += 3;
adamc@120	1906 }
adamc@120	1907 }
adamc@428	1908
adamc@428	1909 return uw_unit_v;
adamc@120	1910 }
adamc@120	1911
adamc@428	1912 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1913 if (b == uw_Basis_False)
adamc@311	1914 uw_writec(ctx, '0');
adamc@186	1915 else
adamc@311	1916 uw_writec(ctx, '1');
adamc@428	1917
adamc@428	1918 return uw_unit_v;
adamc@186	1919 }
adamc@186	1920
adam@1620	1921 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	1922 int len;
adam@1620	1923
adam@1620	1924 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	1925 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1926 ctx->page.front += len;
adam@1620	1927
adam@1620	1928 return uw_unit_v;
adam@1620	1929 }
adam@1620	1930
adamc@120	1931
adamc@311	1932 static char uw_unurlify_advance(char s) {
adamc@144	1933 char *new_s = strchr(s, '/');
adamc@120	1934
adamc@120	1935 if (new_s)
adamc@120	1936 *new_s++ = 0;
adamc@120	1937 else
adamc@144	1938 new_s = strchr(s, 0);
adamc@144	1939
adamc@144	1940 return new_s;
adamc@144	1941 }
adamc@144	1942
adamc@311	1943 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1944 char new_s = uw_unurlify_advance(s);
adamc@311	1945 uw_Basis_int r;
adamc@120	1946
adamc@276	1947 r = atoll(*s);
adamc@120	1948 *s = new_s;
adamc@120	1949 return r;
adamc@120	1950 }
adamc@120	1951
adamc@311	1952 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1953 char new_s = uw_unurlify_advance(s);
adamc@311	1954 uw_Basis_float r;
adamc@120	1955
adamc@120	1956 r = atof(*s);
adamc@120	1957 *s = new_s;
adamc@120	1958 return r;
adamc@120	1959 }
adamc@120	1960
adamc@488	1961 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	1962 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	1963 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	1964 return r;
adamc@488	1965 }
adamc@488	1966
adamc@1023	1967 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1968 char s1, s2 = s;
adamc@144	1969 int n;
adamc@136	1970
adamc@1023	1971 if (!fromClient) {
adamc@1023	1972 if (*s2 == '_')
adamc@1023	1973 ++s2;
adamc@1259	1974 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1975 s2 += 3;
adamc@1023	1976 }
adamc@925	1977
adamc@927	1978 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	1979 unsigned char c = *s2;
adamc@136	1980
adamc@136	1981 switch (c) {
adamc@136	1982 case '+':
adamc@136	1983 *s1 = ' ';
adamc@136	1984 break;
adamc@136	1985 case '%':
adamc@169	1986 if (s2[1] == 0)
adamc@311	1987 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1988 if (s2[2] == 0)
adamc@311	1989 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1990 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	1991 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	1992 *s1 = n;
adamc@136	1993 s2 += 2;
adamc@136	1994 break;
adamc@1259	1995 case '.':
adamc@1259	1996 if (!fromClient) {
adamc@1259	1997 if (s2[1] == 0)
adamc@1259	1998 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	1999 if (s2[2] == 0)
adamc@1259	2000 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	2001 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2002 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	2003 *s1 = n;
adamc@1259	2004 s2 += 2;
adamc@1259	2005 break;
adamc@1259	2006 }
adamc@136	2007 default:
adamc@136	2008 *s1 = c;
adamc@136	2009 }
adamc@136	2010 }
adamc@136	2011 *s1++ = 0;
adamc@144	2012 return s1;
adamc@144	2013 }
adamc@144	2014
adamc@311	2015 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	2016 char new_s = uw_unurlify_advance(s);
adamc@311	2017 uw_Basis_bool r;
adamc@186	2018
adamc@186	2019 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2020 r = uw_Basis_False;
adamc@186	2021 else
adamc@311	2022 r = uw_Basis_True;
adamc@186	2023
adamc@186	2024 *s = new_s;
adamc@186	2025 return r;
adamc@186	2026 }
adamc@186	2027
adamc@311	2028 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2029 char new_s = uw_unurlify_advance(s);
adamc@1134	2030 char *r;
adamc@1134	2031 int len;
adamc@144	2032
adamc@200	2033 len = strlen(*s);
adamc@311	2034 uw_check_heap(ctx, len + 1);
adamc@144	2035
adamc@666	2036 r = ctx->heap.front;
adamc@1023	2037 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2038 *s = new_s;
adamc@1023	2039 return r;
adamc@1023	2040 }
adamc@1023	2041
adamc@1109	2042 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2043 s = uw_unurlify_advance(s);
adamc@1109	2044 return uw_unit_v;
adamc@1109	2045 }
adamc@1109	2046
adamc@1023	2047 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2048 char new_s = uw_unurlify_advance(s);
adamc@1134	2049 char *r;
adamc@1134	2050 int len;
adamc@1023	2051
adamc@1023	2052 len = strlen(*s);
adamc@1023	2053 uw_check_heap(ctx, len + 1);
adamc@1023	2054
adamc@1023	2055 r = ctx->heap.front;
adamc@1023	2056 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2057 *s = new_s;
adamc@136	2058 return r;
adamc@120	2059 }
adamc@135	2060
adamc@135	2061
adamc@311	2062 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2063 int len;
adamc@286	2064 char *r;
adamc@286	2065
adamc@311	2066 uw_check_heap(ctx, INTS_MAX);
adamc@666	2067 r = ctx->heap.front;
adamc@286	2068 sprintf(r, "%lld%n", n, &len);
adamc@666	2069 ctx->heap.front += len+1;
adamc@286	2070 return r;
adamc@286	2071 }
adamc@286	2072
adamc@428	2073 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2074 int len;
adamc@286	2075
adamc@311	2076 uw_check(ctx, INTS_MAX);
adamc@666	2077 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2078 ctx->page.front += len;
adamc@428	2079
adamc@428	2080 return uw_unit_v;
adamc@286	2081 }
adamc@286	2082
adam@1358	2083 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2084 unsigned int n = ch;
adam@1358	2085 int len;
adam@1358	2086 char *r;
adam@1358	2087
adam@1358	2088 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2089 r = ctx->heap.front;
adam@1358	2090 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2091 ctx->heap.front += len+1;
adam@1358	2092 return r;
adam@1358	2093 }
adam@1358	2094
adam@1358	2095 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2096 unsigned int n = ch;
adam@1358	2097 int len;
adam@1358	2098
adam@1358	2099 uw_check(ctx, INTS_MAX+3);
adam@1358	2100 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2101 ctx->page.front += len;
adam@1358	2102 return uw_unit_v;
adam@1358	2103 }
adam@1358	2104
adamc@311	2105 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2106 int len;
adamc@286	2107 char *r;
adamc@286	2108
adamc@311	2109 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2110 r = ctx->heap.front;
adamc@286	2111 sprintf(r, "%g%n", n, &len);
adamc@666	2112 ctx->heap.front += len+1;
adamc@286	2113 return r;
adamc@286	2114 }
adamc@286	2115
adamc@428	2116 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2117 int len;
adamc@286	2118
adamc@311	2119 uw_check(ctx, FLOATS_MAX);
adamc@666	2120 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2121 ctx->page.front += len;
adamc@428	2122
adamc@428	2123 return uw_unit_v;
adamc@286	2124 }
adamc@286	2125
adam@1365	2126 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2127 int len;
adam@1360	2128 char *r;
adam@1360	2129
adam@1360	2130 uw_check_heap(ctx, INTS_MAX);
adam@1360	2131 r = ctx->heap.front;
adamc@1377	2132 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2133 ctx->heap.front += len+1;
adam@1360	2134 return r;
adam@1360	2135 }
adam@1360	2136
adam@1365	2137 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2138 int len;
adam@1360	2139
adam@1360	2140 uw_check(ctx, INTS_MAX);
adam@1360	2141 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2142 ctx->page.front += len;
adam@1360	2143
adam@1360	2144 return uw_unit_v;
adam@1360	2145 }
adam@1360	2146
adam@1444	2147 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2148 char r, s2;
adamc@137	2149
adamc@311	2150 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2151
adamc@666	2152 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2153 unsigned char c = *s;
adamc@137	2154
adamc@137	2155 switch (c) {
adamc@137	2156 case '<':
adamc@137	2157 strcpy(s2, "<");
adamc@137	2158 s2 += 4;
adamc@137	2159 break;
adamc@137	2160 case '&':
adamc@137	2161 strcpy(s2, "&");
adamc@137	2162 s2 += 5;
adamc@137	2163 break;
adamc@137	2164 default:
adamc@1059	2165 *s2++ = c;
adamc@137	2166 }
adamc@137	2167 }
adamc@137	2168
adamc@137	2169 *s2++ = 0;
adamc@666	2170 ctx->heap.front = s2;
adamc@137	2171 return r;
adamc@135	2172 }
adamc@135	2173
adamc@428	2174 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2175 uw_check(ctx, strlen(s) * 6);
adamc@135	2176
adamc@135	2177 for (; *s; s++) {
adamc@1054	2178 unsigned char c = *s;
adamc@135	2179
adamc@135	2180 switch (c) {
adamc@135	2181 case '<':
adamc@311	2182 uw_write_unsafe(ctx, "<");
adamc@135	2183 break;
adamc@135	2184 case '&':
adamc@311	2185 uw_write_unsafe(ctx, "&");
adamc@135	2186 break;
adamc@135	2187 default:
adamc@1059	2188 uw_writec_unsafe(ctx, c);
adamc@135	2189 }
adamc@135	2190 }
adamc@428	2191
adamc@428	2192 return uw_unit_v;
adamc@135	2193 }
adamc@180	2194
adamc@311	2195 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2196 if (b == uw_Basis_False)
adamc@286	2197 return "False";
adamc@286	2198 else
adamc@286	2199 return "True";
adamc@286	2200 }
adamc@286	2201
adamc@428	2202 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2203 if (b == uw_Basis_False) {
adamc@311	2204 uw_check(ctx, 6);
adamc@666	2205 strcpy(ctx->page.front, "False");
adamc@666	2206 ctx->page.front += 5;
adamc@286	2207 } else {
adamc@311	2208 uw_check(ctx, 5);
adamc@666	2209 strcpy(ctx->page.front, "True");
adamc@666	2210 ctx->page.front += 4;
adamc@286	2211 }
adamc@428	2212
adamc@428	2213 return uw_unit_v;
adamc@286	2214 }
adamc@286	2215
adamc@436	2216 #define TIME_FMT "%x %X"
adamc@438	2217 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2218 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2219
adam@1629	2220 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2221
adamc@436	2222 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2223 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2224 }
adamc@436	2225
adamc@436	2226 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2227 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2228 }
adamc@436	2229
adam@1446	2230 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2231 int len;
adam@1446	2232 char *r;
adam@1446	2233
adam@1446	2234 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2235 r = ctx->heap.front;
adam@1446	2236 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2237 ctx->heap.front += len+1;
adam@1446	2238 return r;
adam@1446	2239 }
adam@1446	2240
adam@1446	2241 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2242 int len;
adam@1446	2243
adam@1446	2244 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2245 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2246 ctx->page.front += len;
adam@1446	2247
adam@1446	2248 return uw_unit_v;
adam@1446	2249 }
adam@1446	2250
adamc@821	2251 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2252 while (n >= 0) {
adam@1388	2253 if (*s == 0)
adam@1388	2254 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2255
adam@1388	2256 if (n == 0)
adam@1388	2257 return *s;
adam@1388	2258
adam@1388	2259 --n;
adam@1388	2260 ++s;
adam@1388	2261 }
adam@1388	2262
adam@1388	2263 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2264 }
adamc@821	2265
adamc@821	2266 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2267 while (n >= 0) {
adam@1388	2268 if (*s == 0 \|\| n == 0)
adam@1388	2269 return s;
adam@1388	2270
adam@1388	2271 --n;
adam@1388	2272 ++s;
adam@1388	2273 }
adam@1388	2274
adam@1388	2275 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2276 }
adamc@821	2277
adamc@828	2278 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2279 return strlen(s);
adamc@828	2280 }
adamc@828	2281
adam@1388	2282 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2283 while (n > 0) {
adam@1388	2284 if (*s == 0)
adam@1388	2285 return uw_Basis_False;
adam@1388	2286
adam@1388	2287 --n;
adam@1388	2288 ++s;
adam@1388	2289 }
adam@1388	2290
adam@1388	2291 return uw_Basis_True;
adam@1388	2292 }
adam@1388	2293
adamc@829	2294 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2295 return strchr(s, ch);
adamc@829	2296 }
adamc@829	2297
adamc@831	2298 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2299 return strcspn(s, chs);
adamc@831	2300 }
adamc@831	2301
adamc@829	2302 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2303 uw_Basis_string r = strchr(s, ch);
adamc@829	2304 if (r == NULL)
adamc@829	2305 return NULL;
adamc@829	2306 else {
adamc@829	2307 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2308 *nr = r - s;
adamc@829	2309 return nr;
adamc@829	2310 }
adamc@829	2311 }
adamc@829	2312
adam@1390	2313 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2314 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2315 if (r == NULL)
adam@1390	2316 return NULL;
adam@1390	2317 else {
adam@1390	2318 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2319 *nr = r - haystack;
adam@1390	2320 return nr;
adam@1390	2321 }
adam@1390	2322 }
adam@1390	2323
adamc@311	2324 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2325 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2326 char *s;
adamc@180	2327
adamc@311	2328 uw_check_heap(ctx, len);
adamc@180	2329
adamc@666	2330 s = ctx->heap.front;
adamc@180	2331
adamc@180	2332 strcpy(s, s1);
adamc@180	2333 strcat(s, s2);
adamc@666	2334 ctx->heap.front += len;
adamc@180	2335
adamc@180	2336 return s;
adamc@180	2337 }
adamc@278	2338
adamc@829	2339 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2340 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2341
adamc@829	2342 if (start < 0)
adamc@829	2343 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2344 if (len < 0)
adamc@829	2345 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2346 if (start + len > full_len)
adamc@829	2347 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2348
adamc@829	2349 if (start + len == full_len)
adamc@829	2350 return &s[start];
adamc@829	2351 else {
adamc@829	2352 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2353 memcpy(r, s+start, len);
adamc@829	2354 r[len] = 0;
adamc@829	2355 return r;
adamc@829	2356 }
adamc@829	2357
adamc@829	2358 }
adamc@829	2359
adamc@1023	2360 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2361 char *r;
adamc@1023	2362
adamc@1023	2363 uw_check_heap(ctx, 2);
adamc@1023	2364 r = ctx->heap.front;
adamc@1023	2365 r[0] = ch;
adamc@1023	2366 r[1] = 0;
adamc@1023	2367
adamc@1023	2368 ctx->heap.front += 2;
adamc@1023	2369
adamc@1023	2370 return r;
adamc@1023	2371 }
adamc@1023	2372
adamc@737	2373 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2374 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2375 char *s;
adamc@278	2376
adamc@311	2377 uw_check_heap(ctx, len);
adamc@278	2378
adamc@666	2379 s = ctx->heap.front;
adamc@278	2380
adamc@278	2381 strcpy(s, s1);
adamc@666	2382 ctx->heap.front += len;
adamc@278	2383
adamc@278	2384 return s;
adamc@278	2385 }
adamc@280	2386
adam@1295	2387 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2388 if (ctx->error_message[0]) {
adam@1295	2389 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2390 ctx->error_message[0] = 0;
adam@1295	2391 return s;
adam@1295	2392 } else
adam@1295	2393 return NULL;
adam@1295	2394 }
adam@1295	2395
adamc@737	2396 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2397 if (s1)
adamc@737	2398 return uw_strdup(ctx, s1);
adamc@493	2399 else
adamc@493	2400 return NULL;
adamc@493	2401 }
adamc@493	2402
adamc@742	2403 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2404 char *r = uw_malloc(ctx, len);
adamc@742	2405 memcpy(r, p, len);
adamc@742	2406 return r;
adamc@742	2407 }
adamc@280	2408
adamc@879	2409 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2410
adamc@311	2411 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2412 int len;
adamc@281	2413 char *r;
adamc@281	2414
adamc@311	2415 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2416 r = ctx->heap.front;
adamc@879	2417 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2418 ctx->heap.front += len+1;
adamc@281	2419 return r;
adamc@281	2420 }
adamc@281	2421
adamc@467	2422 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2423 if (n == NULL)
adamc@467	2424 return "NULL";
adamc@467	2425 else
adamc@467	2426 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2427 }
adamc@467	2428
adam@1920	2429 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879	2430
adamc@311	2431 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2432 int len;
adamc@281	2433 char *r;
adamc@281	2434
adamc@311	2435 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2436 r = ctx->heap.front;
adamc@879	2437 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2438 ctx->heap.front += len+1;
adamc@281	2439 return r;
adamc@281	2440 }
adamc@281	2441
adamc@467	2442 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2443 if (n == NULL)
adamc@467	2444 return "NULL";
adamc@467	2445 else
adamc@467	2446 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2447 }
adamc@467	2448
adam@1834	2449 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2450 char *uw_sqlsuffixString = "::text";
adamc@1011	2451 char *uw_sqlsuffixChar = "::char";
adamc@281	2452
adamc@311	2453 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2454 char r, s2;
adamc@280	2455
adamc@879	2456 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2457
adamc@666	2458 r = s2 = ctx->heap.front;
adamc@879	2459 if (uw_Estrings)
adamc@879	2460 *s2++ = 'E';
adamc@280	2461 *s2++ = '\'';
adamc@280	2462
adamc@280	2463 for (; *s; s++) {
adamc@280	2464 char c = *s;
adamc@280	2465
adamc@280	2466 switch (c) {
adamc@280	2467 case '\'':
adamc@885	2468 if (uw_Estrings)
adamc@885	2469 strcpy(s2, "\\'");
adamc@885	2470 else
adamc@885	2471 strcpy(s2, "''");
adamc@280	2472 s2 += 2;
adamc@280	2473 break;
adamc@280	2474 case '\\':
adamc@885	2475 if (uw_Estrings) {
adamc@885	2476 strcpy(s2, "\\\\");
adamc@885	2477 s2 += 2;
adamc@885	2478 } else
adamc@885	2479 *s2++ = '\\';
adamc@280	2480 break;
adamc@280	2481 default:
adamc@1150	2482 if (isprint((int)c))
adamc@280	2483 *s2++ = c;
adamc@879	2484 else if (uw_Estrings) {
adam@1857	2485 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2486 s2 += 4;
adamc@280	2487 }
adamc@879	2488 else
adam@1689	2489 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2490 }
adamc@280	2491 }
adamc@280	2492
adamc@879	2493 *s2++ = '\'';
adamc@879	2494 strcpy(s2, uw_sqlsuffixString);
adamc@879	2495 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2496 return r;
adamc@280	2497 }
adamc@281	2498
adamc@1011	2499 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2500 char r, s2;
adamc@1011	2501
adamc@1011	2502 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2503
adamc@1011	2504 r = s2 = ctx->heap.front;
adamc@1011	2505 if (uw_Estrings)
adamc@1011	2506 *s2++ = 'E';
adamc@1011	2507 *s2++ = '\'';
adamc@1011	2508
adamc@1011	2509 switch (c) {
adamc@1011	2510 case '\'':
adamc@1011	2511 if (uw_Estrings)
adamc@1011	2512 strcpy(s2, "\\'");
adamc@1011	2513 else
adamc@1011	2514 strcpy(s2, "''");
adamc@1011	2515 s2 += 2;
adamc@1011	2516 break;
adamc@1011	2517 case '\\':
adamc@1011	2518 if (uw_Estrings) {
adamc@1011	2519 strcpy(s2, "\\\\");
adamc@1011	2520 s2 += 2;
adamc@1011	2521 } else
adamc@1011	2522 *s2++ = '\\';
adamc@1011	2523 break;
adamc@1011	2524 default:
adamc@1150	2525 if (isprint((int)c))
adamc@1011	2526 *s2++ = c;
adamc@1011	2527 else if (uw_Estrings) {
adam@1857	2528 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2529 s2 += 4;
adamc@1011	2530 }
adamc@1011	2531 else
adamc@1011	2532 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2533 }
adamc@1011	2534
adamc@1011	2535 *s2++ = '\'';
adamc@1011	2536 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2537 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2538 return r;
adamc@1011	2539 }
adamc@1011	2540
adamc@879	2541 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2542
adam@1867	2543 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2544 char r, s2;
adamc@737	2545 size_t i;
adamc@737	2546
adam@1867	2547 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2548
adamc@737	2549 r = s2 = ctx->heap.front;
adamc@879	2550 if (uw_Estrings)
adamc@879	2551 *s2++ = 'E';
adam@1867	2552 else
adam@1867	2553 *s2++ = 'X';
adamc@737	2554 *s2++ = '\'';
adamc@737	2555
adamc@737	2556 for (i = 0; i < b.size; ++i) {
adam@1867	2557 unsigned char c = b.data[i];
adam@1867	2558
adam@1867	2559 if (uw_Estrings) {
adam@1867	2560 switch (c) {
adam@1867	2561 case '\'':
adamc@885	2562 strcpy(s2, "\\'");
adam@1867	2563 s2 += 2;
adam@1867	2564 break;
adam@1867	2565 case '\\':
adamc@885	2566 strcpy(s2, "\\\\\\\\");
adamc@885	2567 s2 += 4;
adam@1867	2568 break;
adam@1867	2569 default:
adam@1867	2570 if (isprint((int)c))
adam@1867	2571 *s2++ = c;
adam@1867	2572 else {
adam@1867	2573 sprintf(s2, "\\\\%03o", c);
adam@1867	2574 s2 += 5;
adam@1867	2575 }
adamc@737	2576 }
adam@1867	2577 } else {
adam@1867	2578 sprintf(s2, "%02X", c);
adam@1867	2579 s2 += 2;
adamc@737	2580 }
adam@1867	2581 }
adamc@737	2582
adamc@879	2583 *s2++ = '\'';
adamc@879	2584 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2585 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2586 return r;
adamc@737	2587 }
adamc@737	2588
adamc@682	2589 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2590 int len;
adamc@682	2591 char *r;
adamc@682	2592 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2593
adamc@682	2594 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2595 r = ctx->heap.front;
adamc@879	2596 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2597 ctx->heap.front += len+1;
adamc@682	2598 return r;
adamc@682	2599 }
adamc@682	2600
adamc@682	2601 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2602 int len;
adamc@682	2603 char *r;
adamc@682	2604 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2605
adamc@682	2606 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2607 r = ctx->heap.front;
adamc@682	2608 sprintf(r, "%lld%n", combo, &len);
adamc@682	2609 ctx->heap.front += len+1;
adamc@682	2610 return r;
adamc@682	2611 }
adamc@682	2612
adamc@879	2613 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2614
adamc@682	2615 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2616 int len;
adamc@682	2617 char *r;
adamc@682	2618
adamc@682	2619 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2620 r = ctx->heap.front;
adamc@879	2621 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2622 ctx->heap.front += len+1;
adamc@682	2623 return r;
adamc@682	2624 }
adamc@682	2625
adamc@682	2626 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2627 int len;
adamc@682	2628 char *r;
adamc@682	2629
adamc@682	2630 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2631 r = ctx->heap.front;
adamc@682	2632 sprintf(r, "%u%n", cli, &len);
adamc@682	2633 ctx->heap.front += len+1;
adamc@682	2634 return r;
adamc@682	2635 }
adamc@682	2636
adamc@467	2637 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2638 if (s == NULL)
adamc@467	2639 return "NULL";
adamc@467	2640 else
adamc@467	2641 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2642 }
adamc@467	2643
adamc@311	2644 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2645 if (b == uw_Basis_False)
adamc@281	2646 return "FALSE";
adamc@281	2647 else
adamc@281	2648 return "TRUE";
adamc@281	2649 }
adamc@282	2650
adamc@467	2651 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2652 if (b == NULL)
adamc@467	2653 return "NULL";
adamc@467	2654 else
adamc@467	2655 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2656 }
adamc@467	2657
adamc@439	2658 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2659 size_t len;
adamc@682	2660 char r, s;
adam@1392	2661 struct tm stm = {};
adam@1392	2662 stm.tm_isdst = -1;
adamc@682	2663
adam@1365	2664 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2665 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2666 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2667 if (uw_sql_type_annotations) {
adam@1834	2668 if (t.microseconds) {
adam@1834	2669 r = uw_malloc(ctx, len + 21);
adam@1834	2670 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2671 } else {
adam@1834	2672 r = uw_malloc(ctx, len + 14);
adam@1834	2673 sprintf(r, "'%s'::timestamp", s);
adam@1834	2674 }
adam@1367	2675 } else {
adam@1834	2676 r = uw_malloc(ctx, len + 3);
adam@1834	2677 sprintf(r, "'%s'", s);
adam@1367	2678 }
adamc@682	2679 return r;
adamc@682	2680 } else
adamc@682	2681 return "<Invalid time>";
adamc@682	2682 }
adamc@682	2683
adamc@682	2684 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2685 size_t len;
adamc@439	2686 char *r;
adam@1392	2687 struct tm stm = {};
adam@1392	2688 stm.tm_isdst = -1;
adamc@439	2689
adam@1365	2690 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2691 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2692 r = ctx->heap.front;
adamc@439	2693 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2694 ctx->heap.front += len+1;
adamc@439	2695 return r;
adamc@439	2696 } else
adamc@439	2697 return "<Invalid time>";
adamc@439	2698 }
adamc@439	2699
adam@1364	2700 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2701 size_t len;
adam@1364	2702 char *r;
adam@1392	2703 struct tm stm = {};
adam@1392	2704 stm.tm_isdst = -1;
adam@1364	2705
adam@1365	2706 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2707 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2708 r = ctx->heap.front;
adam@1365	2709 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2710 ctx->heap.front += len;
adam@1365	2711 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2712 ctx->heap.front += 8;
adam@1364	2713 return r;
adam@1364	2714 } else
adam@1364	2715 return "<Invalid time>";
adam@1364	2716 }
adam@1364	2717
adamc@467	2718 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2719 if (t == NULL)
adamc@467	2720 return "NULL";
adamc@467	2721 else
adamc@467	2722 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2723 }
adamc@467	2724
adamc@311	2725 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2726 static uw_Basis_int true = 1;
adamc@311	2727 static uw_Basis_int false = 0;
adamc@282	2728
adamc@311	2729 if (b == uw_Basis_False)
adamc@282	2730 return (char *)&false;
adamc@282	2731 else
adamc@282	2732 return (char *)&true;
adamc@282	2733 }
adamc@284	2734
adamc@311	2735 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2736 int len;
adamc@284	2737 char *r;
adamc@284	2738
adamc@311	2739 uw_check_heap(ctx, INTS_MAX);
adamc@666	2740 r = ctx->heap.front;
adamc@284	2741 sprintf(r, "%lld%n", n, &len);
adamc@666	2742 ctx->heap.front += len+1;
adamc@284	2743 return r;
adamc@284	2744 }
adamc@285	2745
adamc@311	2746 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2747 int len;
adamc@285	2748 char *r;
adamc@285	2749
adamc@311	2750 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2751 r = ctx->heap.front;
adamc@285	2752 sprintf(r, "%g%n", n, &len);
adamc@666	2753 ctx->heap.front += len+1;
adamc@285	2754 return r;
adamc@285	2755 }
adamc@285	2756
adamc@821	2757 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2758 char *r = uw_malloc(ctx, 2);
adamc@821	2759 r[0] = ch;
adamc@821	2760 r[1] = 0;
adamc@821	2761 return r;
adamc@821	2762 }
adamc@821	2763
adamc@311	2764 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2765 if (b == uw_Basis_False)
adamc@285	2766 return "False";
adamc@285	2767 else
adamc@285	2768 return "True";
adamc@285	2769 }
adamc@288	2770
adam@1359	2771 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2772 size_t len;
adam@1352	2773 char *r;
adam@1392	2774 struct tm stm = {};
adam@1392	2775 stm.tm_isdst = -1;
adam@1352	2776
adam@1365	2777 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2778 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2779 r = ctx->heap.front;
adam@1352	2780 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2781 ctx->heap.front += len+1;
adam@1352	2782 return r;
adam@1352	2783 } else
adam@1352	2784 return "<Invalid time>";
adam@1352	2785 }
adam@1352	2786
adam@1629	2787 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2788 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2789 }
adam@1629	2790
adamc@311	2791 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2792 char *endptr;
adamc@311	2793 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2794
adamc@288	2795 if (s != '\0' && endptr == '\0') {
adamc@311	2796 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2797 *r = n;
adamc@288	2798 return r;
adamc@288	2799 } else
adamc@288	2800 return NULL;
adamc@288	2801 }
adamc@289	2802
adamc@311	2803 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2804 char *endptr;
adamc@311	2805 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2806
adamc@289	2807 if (s != '\0' && endptr == '\0') {
adamc@311	2808 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2809 *r = n;
adamc@289	2810 return r;
adamc@289	2811 } else
adamc@289	2812 return NULL;
adamc@289	2813 }
adamc@289	2814
adamc@821	2815 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2816 if (s[0] == 0) {
adamc@821	2817 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2818 r[0] = 0;
adamc@821	2819 return r;
adamc@821	2820 } else if (s[1] != 0)
adamc@821	2821 return NULL;
adamc@821	2822 else {
adamc@821	2823 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2824 r[0] = s[0];
adamc@821	2825 return r;
adamc@821	2826 }
adamc@821	2827 }
adamc@821	2828
adamc@311	2829 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2830 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2831 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2832
adamc@289	2833 if (!strcasecmp (s, "True"))
adamc@289	2834 return &true;
adamc@289	2835 else if (!strcasecmp (s, "False"))
adamc@289	2836 return &false;
adamc@289	2837 else
adamc@289	2838 return NULL;
adamc@289	2839 }
adamc@292	2840
adamc@436	2841 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2842 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2843 struct tm stm = {};
adam@1392	2844 stm.tm_isdst = -1;
adamc@436	2845
adamc@439	2846 if (dot) {
adamc@439	2847 *dot = 0;
adamc@439	2848 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2849 *dot = '.';
adamc@439	2850 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2851 r->seconds = mktime(&stm);
adam@1365	2852 r->microseconds = 0;
adamc@439	2853 return r;
adamc@439	2854 }
adamc@439	2855 else {
adamc@439	2856 *dot = '.';
adamc@439	2857 return NULL;
adamc@439	2858 }
adamc@436	2859 }
adamc@439	2860 else {
adamc@439	2861 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2862 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2863 r->seconds = mktime(&stm);
adam@1365	2864 r->microseconds = 0;
adamc@439	2865 return r;
adamc@439	2866 }
adamc@439	2867 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2868 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2869 r->seconds = mktime(&stm);
adam@1365	2870 r->microseconds = 0;
adamc@439	2871 return r;
adam@1632	2872 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2873 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2874 r->seconds = mktime(&stm);
adam@1632	2875 r->microseconds = 0;
adam@1632	2876 return r;
adamc@439	2877 }
adamc@439	2878 else
adamc@439	2879 return NULL;
adamc@439	2880 }
adamc@436	2881 }
adamc@436	2882
adam@1352	2883 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2884 char *end = strchr(s, 0);
adam@1374	2885 struct tm stm = {};
adam@1392	2886 stm.tm_isdst = -1;
adam@1352	2887
adam@1352	2888 if (strptime(s, fmt, &stm) == end) {
adam@1352	2889 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2890 r->seconds = mktime(&stm);
adam@1365	2891 r->microseconds = 0;
adam@1352	2892 return r;
adam@1352	2893 }
adam@1352	2894 else
adam@1352	2895 return NULL;
adam@1352	2896 }
adam@1352	2897
adamc@311	2898 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2899 char *endptr;
adamc@311	2900 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2901
adamc@292	2902 if (s != '\0' && endptr == '\0')
adamc@292	2903 return n;
adamc@292	2904 else
adam@1444	2905 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2906 }
adamc@293	2907
adamc@682	2908 #include <errno.h>
adamc@682	2909
adamc@678	2910 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2911 unsigned long long n;
adamc@682	2912
adamc@682	2913 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2914 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	2915 else {
adamc@682	2916 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2917 return ch;
adamc@682	2918 }
adamc@682	2919 }
adamc@682	2920
adamc@682	2921 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2922 char *endptr;
adamc@682	2923 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2924
adamc@678	2925 if (s != '\0' && endptr == '\0')
adamc@678	2926 return n;
adamc@678	2927 else
adam@1444	2928 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	2929 }
adamc@678	2930
adamc@311	2931 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2932 char *endptr;
adamc@311	2933 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2934
adamc@293	2935 if (s != '\0' && endptr == '\0')
adamc@293	2936 return n;
adamc@293	2937 else
adam@1444	2938 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2939 }
adamc@293	2940
adamc@821	2941 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2942 if (s[0] == 0)
adamc@821	2943 return 0;
adamc@821	2944 else if (s[1] != 0)
adam@1444	2945 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	2946 else
adamc@821	2947 return s[0];
adamc@821	2948 }
adamc@821	2949
adamc@311	2950 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2951 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2952 return uw_Basis_True;
adamc@296	2953 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2954 return uw_Basis_False;
adamc@293	2955 else
adam@1444	2956 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2957 }
adamc@436	2958
adam@1352	2959 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	2960 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	2961 struct tm stm = {};
adam@1392	2962 stm.tm_isdst = -1;
adam@1352	2963
adam@1352	2964 if (dot) {
adam@1352	2965 *dot = 0;
adam@1352	2966 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	2967 *dot = '.';
adam@1410	2968 char usec[] = "000000";
adam@1410	2969 int len = strlen(dot+1);
adam@1410	2970 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	2971 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	2972 return r;
adam@1352	2973 }
adam@1352	2974 else {
adam@1352	2975 *dot = '.';
adam@1444	2976 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	2977 }
adam@1352	2978 }
adam@1352	2979 else {
adam@1352	2980 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	2981 uw_Basis_time r = { mktime(&stm) };
adam@1365	2982 return r;
adam@1352	2983 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	2984 uw_Basis_time r = { mktime(&stm) };
adam@1365	2985 return r;
adam@1352	2986 } else
adam@1444	2987 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	2988 }
adam@1352	2989 }
adam@1352	2990
adamc@436	2991 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2992 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2993 struct tm stm = {};
adam@1392	2994 stm.tm_isdst = -1;
adamc@436	2995
adamc@438	2996 if (dot) {
adamc@438	2997 *dot = 0;
adamc@438	2998 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2999 *dot = '.';
adam@1365	3000 {
adam@1365	3001 uw_Basis_time r = { mktime(&stm) };
adam@1365	3002 return r;
adam@1365	3003 }
adamc@438	3004 }
adamc@438	3005 else {
adamc@438	3006 *dot = '.';
adam@1444	3007 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3008 }
adamc@438	3009 }
adamc@438	3010 else {
adam@1365	3011 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3012 uw_Basis_time r = { mktime(&stm) };
adam@1365	3013 return r;
adam@1365	3014 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3015 uw_Basis_time r = { mktime(&stm) };
adam@1365	3016 return r;
adam@1632	3017 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3018 uw_Basis_time r = { mktime(&stm) };
adam@1632	3019 return r;
adam@1365	3020 } else
adam@1444	3021 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3022 }
adamc@436	3023 }
adamc@457	3024
adam@1352	3025 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3026 char *end = strchr(s, 0);
adamc@939	3027 struct tm stm = {};
adam@1392	3028 stm.tm_isdst = -1;
adamc@939	3029
adam@1365	3030 if (strptime(s, fmt, &stm) == end) {
adam@1365	3031 uw_Basis_time r = { mktime(&stm) };
adam@1365	3032 return r;
adam@1365	3033 } else
adam@1444	3034 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3035 }
adamc@939	3036
adamc@742	3037 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3038 char *r = ctx->heap.front;
adamc@742	3039 uw_Basis_blob b = {len, r};
adamc@742	3040
adamc@742	3041 uw_check_heap(ctx, len);
adamc@742	3042
adamc@742	3043 while (*s) {
adamc@742	3044 if (s[0] == '\\') {
adamc@742	3045 if (s[1] == '\\') {
adamc@742	3046 *r++ = '\\';
adamc@742	3047 s += 2;
adamc@1153	3048 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adamc@742	3049 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	3050 s += 4;
adamc@742	3051 }
adamc@742	3052 else {
adamc@742	3053 *r++ = '\\';
adamc@742	3054 ++s;
adamc@742	3055 }
adamc@742	3056 } else {
adamc@742	3057 *r++ = s[0];
adamc@742	3058 ++s;
adamc@742	3059 }
adamc@742	3060 }
adamc@742	3061
adamc@742	3062 b.size = r - ctx->heap.front;
adamc@742	3063 ctx->heap.front = r;
adamc@742	3064 return b;
adamc@742	3065 }
adamc@742	3066
adam@1402	3067 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3068
adamc@463	3069 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3070 int len = strlen(c);
adamc@854	3071 char *p = ctx->outHeaders.start;
adamc@474	3072
adamc@1134	3073 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3074 char *p2;
adamc@474	3075 p += 13;
adamc@474	3076 p2 = strchr(p, '=');
adamc@474	3077
adamc@474	3078 if (p2) {
adamc@474	3079 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3080
adamc@474	3081 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3082 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3083 return NULL;
adamc@1052	3084 else {
adamc@1052	3085 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3086 memcpy(ret, p2+1, sz);
adamc@1052	3087 ret[sz] = 0;
adamc@1052	3088 return ret;
adamc@1052	3089 }
adamc@474	3090 }
adamc@474	3091 }
adamc@474	3092 }
adamc@463	3093
adamc@1134	3094 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3095 char *p2;
adamc@1051	3096
adamc@854	3097 while (1) {
adamc@1051	3098 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3099 if ((p2 = strchr(p, ';'))) {
adamc@1051	3100 size_t n = p2 - (p + len);
adamc@1051	3101 char *r = uw_malloc(ctx, n);
adamc@1051	3102 memcpy(r, p + 1 + len, n-1);
adamc@1051	3103 r[n-1] = 0;
adamc@1051	3104 return r;
adamc@1051	3105 } else
adamc@1051	3106 return p + 1 + len;
adamc@1134	3107 } else if ((p = strchr(p, ';')))
adamc@854	3108 p += 2;
adamc@463	3109 else
adamc@463	3110 return NULL;
adamc@463	3111 }
adamc@463	3112 }
adamc@792	3113
adamc@792	3114 return NULL;
adamc@457	3115 }
adamc@462	3116
adam@1877	3117 static void set_cookie(uw_context ctx) {
adam@1877	3118 if (ctx->usedSig)
adam@1877	3119 ctx->needsResig = 1;
adam@1877	3120 }
adam@1877	3121
adamc@1050	3122 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	3123 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3124 uw_write_header(ctx, c);
adamc@462	3125 uw_write_header(ctx, "=");
adamc@462	3126 uw_write_header(ctx, v);
adamc@466	3127 uw_write_header(ctx, "; path=");
adamc@466	3128 uw_write_header(ctx, prefix);
adamc@1050	3129 if (expires) {
adamc@1050	3130 char formatted[30];
adam@1392	3131 struct tm tm = {};
adam@1392	3132 tm.tm_isdst = -1;
adamc@1050	3133
adam@1365	3134 gmtime_r(&expires->seconds, &tm);
adamc@1050	3135
adamc@1050	3136 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3137
adamc@1050	3138 uw_write_header(ctx, "; expires=");
adamc@1050	3139 uw_write_header(ctx, formatted);
adamc@1050	3140 }
adamc@1050	3141 if (secure)
adamc@1050	3142 uw_write_header(ctx, "; secure");
adamc@462	3143 uw_write_header(ctx, "\r\n");
adam@1877	3144 set_cookie(ctx);
adamc@462	3145
adamc@462	3146 return uw_unit_v;
adamc@462	3147 }
adamc@667	3148
adamc@1050	3149 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3150 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3151 uw_write_header(ctx, c);
adamc@1050	3152 uw_write_header(ctx, "=; path=");
adamc@1050	3153 uw_write_header(ctx, prefix);
adamc@1052	3154 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3155 set_cookie(ctx);
adamc@1050	3156
adamc@1050	3157 return uw_unit_v;
adamc@1050	3158 }
adamc@1050	3159
adamc@1113	3160 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3161
adamc@682	3162 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3163 unsigned i;
adamc@682	3164 delta *d;
adamc@671	3165
adamc@682	3166 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3167 if (ctx->deltas[i].client == client)
adamc@682	3168 return &ctx->deltas[i];
adamc@671	3169
adamc@682	3170 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3171 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3172 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3173
adamc@682	3174 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3175 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3176 }
adamc@671	3177
adamc@682	3178 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3179 d->client = client;
adam@1369	3180 uw_buffer_reset(&d->msgs);
adamc@682	3181 return d;
adamc@671	3182 }
adamc@671	3183
adamc@668	3184 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3185 if (ctx->client == NULL)
adamc@682	3186 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3187
adamc@682	3188 return new_channel(ctx->client);
adamc@668	3189 }
adamc@668	3190
adamc@668	3191 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3192 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3193 size_t len;
adamc@682	3194 int preLen;
adamc@682	3195 char pre[INTS_MAX + 2];
adamc@668	3196
adamc@682	3197 len = strlen(msg);
adamc@682	3198
adamc@682	3199 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3200
adam@1369	3201 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3202 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3203 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3204
adamc@671	3205 return uw_unit_v;
adamc@668	3206 }
adamc@671	3207
adam@1327	3208 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3209 int i;
adamc@1131	3210 cleanup *cl;
adamc@1131	3211
adamc@1131	3212 if (ctx->client)
adamc@1131	3213 release_client(ctx->client);
adamc@1131	3214
adamc@1131	3215 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3216 cl->func(cl->arg);
adamc@1131	3217
adamc@1131	3218 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3219
adamc@1131	3220 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3221 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3222 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3223
adamc@1131	3224 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3225 if (ctx->transactionals[i].free)
adam@1327	3226 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3227
adam@1931	3228 return (ctx->app && ctx->transaction_started) ? ctx->app->db_rollback(ctx) : 0;
adamc@1131	3229 }
adamc@1131	3230
adam@1728	3231 static const char begin_xhtml[] = "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" lang=\"en\">";
adam@1728	3232
adam@1877	3233 extern int uw_hash_blocksize;
adam@1877	3234
adam@1877	3235 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3236
adam@1877	3237 static char find_sig(char haystack) {
adam@1877	3238 int i;
adam@1877	3239 char *s = strstr(haystack, sig_intro);
adam@1877	3240
adam@1877	3241 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3242 return NULL;
adam@1877	3243
adam@1877	3244 s += sizeof sig_intro - 1;
adam@1877	3245
adam@1877	3246 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3247 if (!isxdigit((int)s[i]))
adam@1877	3248 return NULL;
adam@1877	3249
adam@1877	3250 if (s[i] != '"')
adam@1877	3251 return NULL;
adam@1877	3252
adam@1877	3253 return s;
adam@1877	3254 }
adam@1877	3255
adamc@671	3256 void uw_commit(uw_context ctx) {
adamc@1104	3257 int i;
adam@1877	3258 char *sig;
adamc@1104	3259
adamc@1131	3260 if (uw_has_error(ctx)) {
adam@1327	3261 uw_rollback(ctx, 0);
adamc@1131	3262 return;
adamc@1131	3263 }
adamc@1131	3264
adamc@1104	3265 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3266 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3267 if (ctx->transactionals[i].commit) {
adamc@1083	3268 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3269 if (uw_has_error(ctx)) {
adam@1327	3270 uw_rollback(ctx, 0);
adamc@1131	3271 return;
adamc@1131	3272 }
adamc@1131	3273 }
adamc@771	3274
adamc@1104	3275 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3276 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3277 if (ctx->transactionals[i].commit) {
adamc@1083	3278 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3279 if (uw_has_error(ctx)) {
adam@1327	3280 uw_rollback(ctx, 0);
adamc@1131	3281 return;
adamc@1131	3282 }
adamc@1131	3283 }
adamc@1131	3284
adam@1931	3285 if (ctx->transaction_started && ctx->app->db_commit(ctx)) {
adamc@1131	3286 uw_set_error_message(ctx, "Error running SQL COMMIT");
adamc@1131	3287 return;
adamc@1131	3288 }
adamc@682	3289
adamc@682	3290 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3291 delta *d = &ctx->deltas[i];
adamc@682	3292 client *c = find_client(d->client);
adamc@682	3293
adam@1551	3294 assert (c != NULL);
adam@1551	3295 assert(c->mode == USED);
adamc@682	3296
adam@1447	3297 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3298 }
adamc@682	3299
adamc@682	3300 if (ctx->client)
adamc@685	3301 release_client(ctx->client);
adamc@771	3302
adamc@1104	3303 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3304 if (ctx->transactionals[i].free)
adam@1327	3305 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3306
vshabanoff@1726	3307 uw_check(ctx, 1);
vshabanoff@1726	3308 *ctx->page.front = 0;
adam@1413	3309
adam@1728	3310 if (!ctx->returning_indirectly && !strncmp(ctx->page.start, begin_xhtml, sizeof begin_xhtml - 1)) {
adam@1728	3311 char *s;
adam@1728	3312
adam@1728	3313 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1728	3314 s = ctx->page.start + sizeof begin_xhtml - 1;
adam@1728	3315 s = strchr(s, '<');
adam@1728	3316 if (s == NULL) {
adam@1728	3317 // Weird. Document has no tags!
adam@1728	3318
adam@1728	3319 uw_write(ctx, "<head></head><body></body>");
adam@1728	3320 uw_check(ctx, 1);
adam@1728	3321 *ctx->page.front = 0;
adam@1728	3322 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3323 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3324
adam@1729	3325 // Any freeform JavaScript to include?
adam@1729	3326 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3327 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3328 size_t lenP = lenH + 40 + len;
adam@1729	3329 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3330
adam@1729	3331 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3332 start += ctx->page.start - oldPage;
adam@1729	3333 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3334 ctx->page.front += lenP;
adam@1729	3335 memcpy(start, ctx->script_header, lenH);
adam@1729	3336 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3337 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3338 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3339 } else {
adam@1729	3340 size_t lenH = strlen(ctx->script_header);
adam@1729	3341 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3342
adam@1729	3343 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3344 start += ctx->page.start - oldPage;
adam@1729	3345 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3346 ctx->page.front += lenH;
adam@1729	3347 memcpy(start, ctx->script_header, lenH);
adam@1729	3348 }
adam@1728	3349 } else {
adam@1728	3350 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3351
adam@1729	3352 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3353 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3354 size_t lenP = lenH + 53 + len;
adam@1729	3355 char start = s, oldPage = ctx->page.start;
adam@1729	3356
adam@1729	3357 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3358 start += ctx->page.start - oldPage;
adam@1729	3359 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3360 ctx->page.front += lenP;
adam@1729	3361 memcpy(start, "<head>", 6);
adam@1729	3362 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3363 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3364 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3365 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3366 } else {
adam@1729	3367 size_t lenH = strlen(ctx->script_header);
adam@1729	3368 size_t lenP = lenH + 13;
adam@1729	3369 char start = s, oldPage = ctx->page.start;
adam@1729	3370
adam@1729	3371 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3372 start += ctx->page.start - oldPage;
adam@1729	3373 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3374 ctx->page.front += lenP;
adam@1729	3375 memcpy(start, "<head>", 6);
adam@1729	3376 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3377 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3378 }
adamc@916	3379 }
adamc@916	3380 }
adam@1877	3381
adam@1877	3382 if (ctx->needsResig) {
adam@1877	3383 sig = find_sig(ctx->page.start);
adam@1877	3384 if (sig) {
adam@1877	3385 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3386
adam@1877	3387 do {
adam@1877	3388 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3389 sig = find_sig(sig);
adam@1877	3390 } while (sig);
adam@1877	3391 }
adam@1877	3392 }
adamc@671	3393 }
adamc@671	3394
adamc@683	3395
adamc@1113	3396 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3397
adamc@771	3398 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3399 uw_callback_with_retry free) {
adamc@771	3400 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3401 if (ctx->used_transactionals+1 > uw_transactionals_max)
adamc@1113	3402 uw_error(ctx, FATAL, "Exceeded limit on number of transactionals");
adamc@1084	3403 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3404 ++ctx->n_transactionals;
adamc@771	3405 }
adamc@771	3406
adamc@771	3407 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3408 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3409 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3410 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	3411 }
adamc@771	3412
adamc@683	3413
adamc@683	3414 // "Garbage collection"
adamc@683	3415
adamc@1121	3416 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3417 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3418
adamc@1121	3419 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3420 int r = setjmp(ctx->jmp_buf);
adamc@683	3421
adamc@1121	3422 if (r == 0)
adamc@1121	3423 uw_do_expunge(ctx, cli, data);
adamc@1121	3424 else
adamc@1121	3425 ctx->app->db_rollback(ctx);
adamc@1121	3426
adamc@1121	3427 uw_post_expunge(ctx, data);
adamc@683	3428
adamc@683	3429 return r;
adamc@683	3430 }
adamc@683	3431
adamc@683	3432 void uw_prune_clients(uw_context ctx) {
adamc@683	3433 client c, next, *prev = NULL;
adamc@683	3434 time_t cutoff;
adamc@683	3435
adamc@1094	3436 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3437
adamc@683	3438 pthread_mutex_lock(&clients_mutex);
adam@1707	3439 pruning_thread = pthread_self();
adam@1707	3440 pruning_thread_initialized = 1;
adamc@683	3441
adamc@683	3442 for (c = clients_used; c; c = next) {
adamc@683	3443 next = c->next;
adamc@683	3444 pthread_mutex_lock(&c->lock);
adamc@685	3445 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3446 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3447 if (prev)
adamc@683	3448 prev->next = next;
adamc@683	3449 else
adamc@683	3450 clients_used = next;
adamc@684	3451 uw_reset(ctx);
adamc@683	3452 while (fk == UNLIMITED_RETRY) {
adamc@1121	3453 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3454 if (fk == UNLIMITED_RETRY)
adamc@684	3455 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3456 }
adamc@684	3457 if (fk == SUCCESS)
adamc@684	3458 free_client(c);
adamc@1121	3459 else
adamc@856	3460 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3461 }
adamc@683	3462 else
adamc@683	3463 prev = c;
adamc@683	3464 pthread_mutex_unlock(&c->lock);
adamc@683	3465 }
adamc@683	3466
adamc@683	3467 pthread_mutex_unlock(&clients_mutex);
adamc@683	3468 }
adamc@687	3469
adamc@687	3470 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3471 int r = setjmp(ctx->jmp_buf);
adamc@687	3472
adamc@687	3473 if (r == 0) {
adam@1936	3474 uw_ensure_transaction(ctx);
adamc@1094	3475 ctx->app->initializer(ctx);
adamc@1094	3476 if (ctx->app->db_commit(ctx))
adamc@687	3477 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3478 }
adamc@687	3479
adamc@687	3480 return r;
adamc@687	3481 }
adamc@717	3482
adamc@1065	3483 static int url_bad(uw_Basis_string s) {
adamc@1065	3484 for (; *s; ++s)
adamc@1153	3485 if (!isgraph((int)*s))
adamc@1065	3486 return 1;
adamc@1065	3487
adamc@1065	3488 return 0;
adamc@1065	3489 }
adamc@1065	3490
adamc@717	3491 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3492 if (url_bad(s))
adamc@1065	3493 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3494 if (ctx->app->check_url(s))
adamc@770	3495 return s;
adamc@770	3496 else
adamc@770	3497 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3498 }
adamc@734	3499
adamc@770	3500 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3501 if (url_bad(s))
adamc@1065	3502 return NULL;
adamc@1094	3503 if (ctx->app->check_url(s))
adamc@770	3504 return s;
adamc@770	3505 else
adamc@770	3506 return NULL;
adamc@770	3507 }
adamc@770	3508
adam@1465	3509 static int mime_format(const char *s) {
adamc@770	3510 for (; *s; ++s)
adamc@1153	3511 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.')
adamc@770	3512 return 0;
adamc@770	3513
adamc@770	3514 return 1;
adamc@770	3515 }
adamc@770	3516
adamc@741	3517 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3518 if (!mime_format(s))
adamc@770	3519 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3520
adamc@1094	3521 if (ctx->app->check_mime(s))
adamc@770	3522 return s;
adamc@770	3523 else
adamc@770	3524 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3525 }
adamc@770	3526
adamc@770	3527 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3528 if (!mime_format(s))
adamc@770	3529 return NULL;
adamc@770	3530
adamc@1094	3531 if (ctx->app->check_mime(s))
adamc@770	3532 return s;
adamc@770	3533 else
adamc@770	3534 return NULL;
adamc@741	3535 }
adamc@741	3536
adam@1465	3537 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3538 if (!mime_format(s))
adam@1465	3539 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3540
adam@1465	3541 if (ctx->app->check_requestHeader(s))
adam@1465	3542 return s;
adam@1465	3543 else
adam@1465	3544 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3545 }
adam@1465	3546
adam@1465	3547 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3548 if (!mime_format(s))
adam@1465	3549 return NULL;
adam@1465	3550
adam@1465	3551 if (ctx->app->check_requestHeader(s))
adam@1465	3552 return s;
adam@1465	3553 else
adam@1465	3554 return NULL;
adam@1465	3555 }
adam@1465	3556
adam@1465	3557 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3558 if (!mime_format(s))
adam@1465	3559 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3560
adam@1465	3561 if (ctx->app->check_responseHeader(s))
adam@1465	3562 return s;
adam@1465	3563 else
adam@1465	3564 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3565 }
adam@1465	3566
adam@1799	3567 static int envVar_format(const char *s) {
adam@1799	3568 for (; *s; ++s)
adam@1799	3569 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3570 return 0;
adam@1799	3571
adam@1799	3572 return 1;
adam@1799	3573 }
adam@1799	3574
adam@1465	3575 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3576 if (!envVar_format(s))
adam@1465	3577 return NULL;
adam@1465	3578
adam@1465	3579 if (ctx->app->check_responseHeader(s))
adam@1465	3580 return s;
adam@1465	3581 else
adam@1465	3582 return NULL;
adam@1465	3583 }
adam@1465	3584
adam@1799	3585 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3586 if (!envVar_format(s))
adam@1799	3587 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3588
adam@1799	3589 if (ctx->app->check_envVar(s))
adam@1799	3590 return s;
adam@1799	3591 else
adam@1799	3592 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3593 }
adam@1799	3594
adam@1799	3595 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3596 if (!mime_format(s))
adam@1799	3597 return NULL;
adam@1799	3598
adam@1799	3599 if (ctx->app->check_envVar(s))
adam@1799	3600 return s;
adam@1799	3601 else
adam@1799	3602 return NULL;
adam@1799	3603 }
adam@1799	3604
adam@1465	3605 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3606 return uw_Basis_requestHeader(ctx, name);
adam@1465	3607 }
adam@1465	3608
adam@1465	3609 static int mime_value_format(const char *s) {
adam@1465	3610 for (; *s; ++s)
adam@1465	3611 if (s == '\r' \|\| s == '\n')
adam@1465	3612 return 0;
adam@1465	3613
adam@1465	3614 return 1;
adam@1465	3615 }
adam@1465	3616
adam@1465	3617 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3618 if (!mime_value_format(value))
adam@1465	3619 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3620
adam@1465	3621 uw_write_header(ctx, name);
adam@1465	3622 uw_write_header(ctx, ": ");
adam@1465	3623 uw_write_header(ctx, value);
adam@1465	3624 uw_write_header(ctx, "\r\n");
adam@1465	3625
adam@1465	3626 return uw_unit_v;
adam@1465	3627 }
adam@1465	3628
adam@1799	3629 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1799	3630 return ctx->get_env(ctx->get_env_data, name);
adam@1799	3631 }
adam@1799	3632
adamc@734	3633 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3634 return s ? s : "";
adamc@734	3635 }
adamc@734	3636
adamc@734	3637 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3638 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3639 int i;
adamc@734	3640
adamc@734	3641 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3642 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3643
adamc@734	3644 return r;
adamc@734	3645 }
adamc@734	3646
adam@1512	3647 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3648 * optimizations that would enable timing attacks. See:
adam@1512	3649 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3650 */
adam@1512	3651 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3652 int i, x = 0, len1 = strlen(s1);
adam@1512	3653
adam@1512	3654 if (len1 != strlen(s2)) return 0;
adam@1512	3655
adam@1512	3656 for (i = 0; i < len1; ++i) {
adam@1512	3657 __asm__ __volatile__ ("");
adam@1512	3658 x \|= s1[i] ^ s2[i];
adam@1512	3659 }
adam@1512	3660
adam@1512	3661 return x == 0;
adam@1512	3662 }
adam@1512	3663
adamc@734	3664 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3665 ctx->usedSig = 1;
adamc@1094	3666 return ctx->app->cookie_sig(ctx);
adamc@734	3667 }
adamc@737	3668
adamc@737	3669 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3670 return f.name;
adamc@737	3671 }
adamc@737	3672
adamc@740	3673 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3674 return f.type;
adamc@740	3675 }
adamc@740	3676
adamc@745	3677 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3678 return b.size;
adamc@745	3679 }
adamc@745	3680
adamc@1119	3681 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3682 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3683
adamc@1119	3684 return b;
adamc@1119	3685 }
adamc@1119	3686
adamc@737	3687 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3688 return f.data;
adamc@737	3689 }
adamc@741	3690
adam@1347	3691 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3692 return pb.type;
adam@1347	3693 }
adam@1347	3694
adam@1347	3695 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3696 return pb.data;
adam@1347	3697 }
adam@1347	3698
adam@1471	3699 static char *old_headers(uw_context ctx) {
adam@1471	3700 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3701 return NULL;
adam@1471	3702 else {
adam@1471	3703 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3704
adam@1471	3705 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3706 return NULL;
adam@1471	3707 else {
adam@1471	3708 s = strchr(s+15, '\n');
adam@1471	3709 if (s == NULL)
adam@1471	3710 return NULL;
adam@1471	3711 else
adam@1471	3712 return uw_strdup(ctx, s+1);
adam@1471	3713 }
adam@1471	3714 }
adam@1471	3715 }
adam@1471	3716
adamc@741	3717 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3718 cleanup *cl;
adamc@741	3719 int len;
adam@1471	3720 char *oldh;
adamc@741	3721
adam@1451	3722 if (!ctx->allowed_to_return_indirectly)
adam@1451	3723 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3724
adamc@1065	3725 ctx->returning_indirectly = 1;
adam@1471	3726 oldh = old_headers(ctx);
adam@1369	3727 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3728 uw_buffer_reset(&ctx->page);
adamc@741	3729
adamc@856	3730 uw_write_header(ctx, on_success);
adamc@856	3731 uw_write_header(ctx, "Content-Type: ");
adamc@741	3732 uw_write_header(ctx, mimeType);
adam@1934	3733 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369	3734 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3735 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3736 ctx->outHeaders.front += len;
adamc@1066	3737 uw_write_header(ctx, "\r\n");
adam@1471	3738 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3739
adam@1369	3740 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3741
adamc@741	3742 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3743 cl->func(cl->arg);
adamc@741	3744
adamc@741	3745 ctx->cleanup_front = ctx->cleanup;
adamc@741	3746
adamc@1065	3747 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3748 }
adamc@1065	3749
adam@1932	3750 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932	3751 cleanup *cl;
adam@1932	3752 int len;
adam@1932	3753 char *oldh;
adam@1932	3754
adam@1932	3755 if (!ctx->allowed_to_return_indirectly)
adam@1932	3756 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932	3757
adam@1932	3758 ctx->returning_indirectly = 1;
adam@1932	3759 oldh = old_headers(ctx);
adam@1932	3760 uw_buffer_reset(&ctx->outHeaders);
adam@1932	3761
adam@1932	3762 uw_write_header(ctx, on_success);
adam@1932	3763 uw_write_header(ctx, "Content-Type: ");
adam@1932	3764 uw_write_header(ctx, mimeType);
adam@1934	3765 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932	3766 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932	3767 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932	3768 ctx->outHeaders.front += len;
adam@1932	3769 uw_write_header(ctx, "\r\n");
adam@1932	3770 if (oldh) uw_write_header(ctx, oldh);
adam@1932	3771
adam@1932	3772 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932	3773 cl->func(cl->arg);
adam@1932	3774
adam@1932	3775 ctx->cleanup_front = ctx->cleanup;
adam@1932	3776
adam@1932	3777 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932	3778 }
adam@1932	3779
adamc@1065	3780 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3781 cleanup *cl;
adamc@1066	3782 char *s;
adam@1471	3783 char *oldh;
adamc@1065	3784
adam@1451	3785 if (!ctx->allowed_to_return_indirectly)
adam@1451	3786 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3787
adamc@1065	3788 ctx->returning_indirectly = 1;
adam@1471	3789 oldh = old_headers(ctx);
adam@1369	3790 uw_buffer_reset(&ctx->page);
adam@1369	3791 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3792 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3793 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3794 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3795
adam@1409	3796 if (on_success[0])
adam@1409	3797 uw_write_header(ctx, on_redirect);
adam@1409	3798 else
adam@1409	3799 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3800 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3801 if (s) {
adamc@1066	3802 char *s2;
adam@1409	3803 if (s[0] == '\n') ++s;
adam@1409	3804 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3805 *s2 = 0;
adamc@1066	3806 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3807 uw_write_header(ctx, s);
adamc@1066	3808 uw_write_header(ctx, "\n");
adamc@1066	3809 }
adamc@1066	3810 }
adamc@1066	3811 }
adamc@1066	3812
adamc@1065	3813 uw_write_header(ctx, "Location: ");
adamc@1065	3814 uw_write_header(ctx, url);
adamc@1065	3815 uw_write_header(ctx, "\r\n\r\n");
adam@1471	3816 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	3817
adamc@1065	3818 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3819 cl->func(cl->arg);
adamc@1065	3820
adamc@1065	3821 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3822
adamc@1065	3823 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3824 }
adamc@874	3825
adamc@874	3826 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	3827 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	3828
adamc@874	3829 for (; *s; ++s) {
adamc@874	3830 if (s[0] == '\'') {
adamc@874	3831 *r++ = '\'';
adamc@874	3832 for (++s; *s; ++s) {
adamc@874	3833 if (s[0] == '\'') {
adamc@874	3834 *r++ = '\'';
adamc@874	3835 break;
adamc@874	3836 } else if (s[0] == '\\') {
adam@1467	3837 *r++ = '\\';
adam@1467	3838 *r++ = s[1];
adam@1467	3839 ++s;
adamc@874	3840 } else
adamc@874	3841 *r++ = s[0];
adamc@874	3842 }
adamc@874	3843 if (*s == 0) break;
adam@1467	3844 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	3845 s += 3;
adamc@874	3846 else
adamc@874	3847 *r++ = s[0];
adamc@874	3848 }
adamc@874	3849
adam@1467	3850 *r = 0;
adam@1467	3851 return ret;
adamc@874	3852 }
adamc@874	3853
adamc@922	3854 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3855 va_list ap;
adamc@922	3856 size_t len = 1;
adamc@922	3857 char s, r, *s2;
adamc@922	3858
adamc@922	3859 va_start(ap, ctx);
adamc@922	3860 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3861 len += strlen(s);
adamc@922	3862 va_end(ap);
adamc@922	3863
adamc@922	3864 r = uw_malloc(ctx, len);
adamc@922	3865 va_start(ap, ctx);
adamc@922	3866 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3867 while (*s)
adamc@922	3868 s2++ = s++;
adamc@922	3869 va_end(ap);
adamc@922	3870 *s2 = 0;
adamc@922	3871
adamc@922	3872 return r;
adamc@922	3873 }
adamc@1006	3874
adam@1365	3875 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	3876
adamc@1006	3877 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	3878 uw_Basis_time r = { time(NULL) };
adam@1365	3879 return r;
adamc@1006	3880 }
adamc@1061	3881
adam@1369	3882 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	3883 tm.seconds += n;
adam@1365	3884 return tm;
adamc@1138	3885 }
adamc@1138	3886
adam@1514	3887 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	3888 return difftime(tm2.seconds, tm1.seconds);
adam@1514	3889 }
adam@1514	3890
adam@1685	3891 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	3892 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	3893 }
adam@1685	3894
adam@1685	3895 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	3896 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	3897 }
adam@1685	3898
adam@1514	3899 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	3900 return tm.seconds;
adam@1514	3901 }
adam@1514	3902
adamc@1061	3903 void uw_get_global(uw_context ctx, char name) {
adamc@1061	3904 int i;
adamc@1061	3905
adamc@1061	3906 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3907 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	3908 return ctx->globals[i].data;
adamc@1061	3909
adamc@1061	3910 return NULL;
adamc@1061	3911 }
adamc@1061	3912
adamc@1113	3913 size_t uw_globals_max = SIZE_MAX;
adamc@1113	3914
adamc@1061	3915 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	3916 int i;
adamc@1061	3917
adamc@1061	3918 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3919 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	3920 if (ctx->globals[i].free)
adamc@1061	3921 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	3922 ctx->globals[i].data = data;
adamc@1061	3923 ctx->globals[i].free = free;
adamc@1061	3924 return;
adamc@1061	3925 }
adamc@1089	3926
adamc@1113	3927 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	3928 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	3929
adamc@1061	3930 ++ctx->n_globals;
adamc@1061	3931 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	3932 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	3933 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	3934 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	3935 }
adamc@1061	3936
adamc@1061	3937 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	3938 return !!isalnum((int)c);
adamc@1061	3939 }
adamc@1061	3940
adamc@1061	3941 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	3942 return !!isalpha((int)c);
adamc@1061	3943 }
adamc@1061	3944
adamc@1061	3945 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	3946 return !!isblank((int)c);
adamc@1061	3947 }
adamc@1061	3948
adamc@1061	3949 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	3950 return !!iscntrl((int)c);
adamc@1061	3951 }
adamc@1061	3952
adamc@1061	3953 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3954 return !!isdigit((int)c);
adamc@1061	3955 }
adamc@1061	3956
adamc@1061	3957 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	3958 return !!isgraph((int)c);
adamc@1061	3959 }
adamc@1061	3960
adamc@1061	3961 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3962 return !!islower((int)c);
adamc@1061	3963 }
adamc@1061	3964
adamc@1061	3965 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	3966 return !!isprint((int)c);
adamc@1061	3967 }
adamc@1061	3968
adamc@1061	3969 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	3970 return !!ispunct((int)c);
adamc@1061	3971 }
adamc@1061	3972
adamc@1061	3973 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	3974 return !!isspace((int)c);
adamc@1061	3975 }
adamc@1063	3976
adamc@1061	3977 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3978 return !!isupper((int)c);
adamc@1061	3979 }
adamc@1061	3980
adamc@1061	3981 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3982 return !!isxdigit((int)c);
adamc@1061	3983 }
adamc@1061	3984
adamc@1061	3985 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3986 return tolower((int)c);
adamc@1061	3987 }
adamc@1061	3988
adamc@1061	3989 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3990 return toupper((int)c);
adamc@1061	3991 }
adamc@1066	3992
adamc@1128	3993 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	3994 return (unsigned char)c;
adamc@1128	3995 }
adamc@1128	3996
adamc@1128	3997 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	3998 return n;
adamc@1128	3999 }
adamc@1128	4000
adamc@1066	4001 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	4002 return ctx->current_url;
adamc@1066	4003 }
adamc@1066	4004
adamc@1066	4005 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	4006 ctx->current_url = s;
adamc@1066	4007 }
adamc@1114	4008
adamc@1114	4009 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	4010 ctx->deadline = n;
adamc@1114	4011 }
adamc@1114	4012
adamc@1114	4013 void uw_check_deadline(uw_context ctx) {
adamc@1114	4014 if (uw_time > ctx->deadline)
adamc@1114	4015 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	4016 }
adamc@1115	4017
adamc@1115	4018 size_t uw_database_max = SIZE_MAX;
adamc@1120	4019
adam@1389	4020 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@1389	4021 fprintf(stderr, "%s\n", s);
adam@1389	4022 return 0;
adam@1389	4023 }
adam@1389	4024
adamc@1120	4025 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
adam@1334	4026 if (ctx->log_debug)
adam@1334	4027 ctx->log_debug(ctx->logger_data, "%s\n", s);
adam@1334	4028 else
adam@1334	4029 fprintf(stderr, "%s\n", s);
adamc@1120	4030 return uw_unit_v;
adamc@1120	4031 }
adamc@1250	4032
adam@1933	4033 static pthread_mutex_t rand_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@1933	4034
adamc@1250	4035 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@1486	4036 uw_Basis_int ret;
adam@1933	4037 pthread_mutex_lock(&rand_mutex);
adam@1486	4038 int r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@1933	4039 pthread_mutex_unlock(&rand_mutex);
adam@1486	4040
adam@1486	4041 if (r)
adam@1486	4042 return abs(ret);
adam@1486	4043 else
adam@1486	4044 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	4045 }
adam@1347	4046
adam@1347	4047 void uw_noPostBody(uw_context ctx) {
adam@1347	4048 ctx->hasPostBody = 0;
adam@1347	4049 }
adam@1347	4050
adam@1347	4051 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	4052 ctx->hasPostBody = 1;
adam@1347	4053 ctx->postBody = pb;
adam@1347	4054 }
adam@1347	4055
adam@1347	4056 int uw_hasPostBody(uw_context ctx) {
adam@1347	4057 return ctx->hasPostBody;
adam@1347	4058 }
adam@1347	4059
adam@1386	4060 void uw_isPost(uw_context ctx) {
adam@1386	4061 ctx->isPost = 1;
adam@1386	4062 }
adam@1386	4063
adam@1386	4064 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4065 return ctx->isPost;
adam@1386	4066 }
adam@1386	4067
adam@1485	4068 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4069 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4070 }
adam@1485	4071
adam@1370	4072 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4073 ctx->queryString = s;
adam@1370	4074 }
adam@1370	4075
adam@1370	4076 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4077 return ctx->queryString;
adam@1370	4078 }
adam@1370	4079
adam@1347	4080 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4081 if (ctx->hasPostBody)
adam@1347	4082 return ctx->postBody;
adam@1347	4083 else
adam@1347	4084 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4085 }
adam@1349	4086
adam@1349	4087 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4088 int r = setjmp(ctx->jmp_buf);
adam@1349	4089
adam@1349	4090 if (r == 0) {
adam@1936	4091 uw_ensure_transaction(ctx);
adam@1418	4092
adam@1349	4093 callback(ctx);
adam@1349	4094 }
adam@1349	4095
adam@1349	4096 return r;
adam@1349	4097 }
adam@1360	4098
adam@1360	4099 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4100 char buf[14];
adam@1397	4101 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4102 }
adam@1365	4103
adam@1365	4104 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4105 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	4106 }
adam@1365	4107
adam@1365	4108 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4109 return !!(t1.seconds < t2.seconds \|\| t1.microseconds < t2.microseconds);
adam@1365	4110 }
adam@1365	4111
adam@1365	4112 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4113 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4114 }
adam@1365	4115
adam@1372	4116 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4117 struct tm stm = {};
adam@1375	4118 char *end = strchr(s, 0);
adam@1449	4119 stm.tm_isdst = -1;
adam@1375	4120
adam@1632	4121 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4122 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4123
kkallio@1448	4124 r->seconds = timegm(&stm);
adam@1373	4125 r->microseconds = 0;
adam@1373	4126
adam@1373	4127 return r;
adam@1374	4128 }
adam@1374	4129 else
adam@1373	4130 return NULL;
adam@1372	4131 }
adam@1407	4132
adam@1407	4133 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4134 int r = setjmp(ctx->jmp_buf);
adam@1407	4135
adam@1407	4136 if (ctx->app->on_error) {
adam@1407	4137 if (r == 0) {
adam@1936	4138 uw_ensure_transaction(ctx);
adam@1407	4139
adam@1409	4140 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4141 if (on_success[0])
adam@1409	4142 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4143 else
adam@1409	4144 uw_write_header(ctx, "Status: ");
adam@1409	4145 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919	4146 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1407	4147 uw_write(ctx, begin_xhtml);
adam@1407	4148 ctx->app->on_error(ctx, msg);
adam@1407	4149 uw_write(ctx, "</html>");
adam@1407	4150 }
adam@1407	4151
adam@1407	4152 return r;
adam@1407	4153 } else
adam@1407	4154 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4155 }
adam@1451	4156
adam@1451	4157 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4158 ctx->allowed_to_return_indirectly = 1;
adam@1451	4159 }
adam@1483	4160
adam@1556	4161 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4162 int len;
adam@1703	4163 char *r;
adam@1703	4164
adam@1703	4165 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4166 r = ctx->heap.front;
adam@1703	4167 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4168 ctx->heap.front += len+1;
adam@1703	4169 return r;
adam@1556	4170 }
adam@1571	4171
adam@1571	4172 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4173 return n;
adam@1571	4174 }
adam@1571	4175
adam@1571	4176 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4177 return ceil(n);
adam@1571	4178 }
adam@1571	4179
adam@1571	4180 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4181 return trunc(n);
adam@1571	4182 }
adam@1571	4183
adam@1571	4184 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4185 return round(n);
adam@1571	4186 }
adam@1755	4187
adam@1755	4188 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755	4189 char *p;
adam@1755	4190
adam@1755	4191 for (p = s; *p; ++p) {
adam@1755	4192 char c = *p;
adam@1801	4193 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755	4194 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4195 }
adam@1755	4196
adam@1755	4197 return s;
adam@1755	4198 }
adam@1755	4199
adam@1755	4200 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4201 char *p;
adam@1755	4202
adam@1755	4203 for (p = s; *p; ++p) {
adam@1755	4204 char c = *p;
adam@1801	4205 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4206 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4207 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4208 }
adam@1755	4209
adam@1755	4210 return s;
adam@1755	4211 }
adam@1755	4212
adam@1755	4213 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4214 char *p;
adam@1755	4215
adam@1755	4216 if (!*s)
adam@1755	4217 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4218
adam@1801	4219 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4220 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4221
adam@1755	4222 for (p = s; *p; ++p) {
adam@1755	4223 char c = *p;
adam@1801	4224 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4225 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4226 }
adam@1755	4227
adam@1755	4228 return s;
adam@1755	4229 }
adam@1787	4230
adam@1787	4231 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4232 return f.name;
adam@1787	4233 }
adam@1787	4234
adam@1787	4235 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4236 return f.value;
adam@1787	4237 }
adam@1787	4238
adam@1787	4239 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4240 return f.remaining;
adam@1787	4241 }
adam@1787	4242
adam@1787	4243 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4244 char *unurl;
adam@1787	4245 uw_Basis_postField *f;
adam@1787	4246
adam@1788	4247 if (!ctx->hasPostBody)
adam@1788	4248 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4249
adam@1788	4250 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4251 return NULL;
adam@1787	4252
adam@1787	4253 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4254 unurl = s;
adam@1787	4255 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4256 s = strchr(s, 0);
adam@1788	4257 if (!s)
adam@1788	4258 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4259 ++s;
adam@1788	4260 unurl = s;
adam@1788	4261 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4262 s = strchr(s, 0);
adam@1788	4263 if (!s)
adam@1788	4264 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4265 f->remaining = s+1;
adam@1787	4266
adam@1787	4267 return f;
adam@1787	4268 }

Mercurial > urweb

annotate src/c/urweb.c @ 1936:6745eafff617