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

annotate src/c/urweb.c @ 1878:df6a040f5389

Make transactional FFI functions effectful by default

author	Adam Chlipala <adam@chlipala.net>
date	Thu, 10 Oct 2013 18:01:30 -0400
parents	22b44fe822bf
children	0354df1b6849

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

Mercurial > urweb

annotate src/c/urweb.c @ 1878:df6a040f5389