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

annotate src/c/urweb.c @ 1916:e2345c438f08

Postgres: print SQLSTATE on DML failure, to help figure out when new special cases should be added

author	Adam Chlipala <adam@chlipala.net>
date	Wed, 27 Nov 2013 15:42:24 -0500
parents	52e88e139b25
children	f5d1037effc9

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
adam@1915	1285 int uw_pagelen(uw_context ctx) {
adam@1915	1286 return ctx->page.front - ctx->page.start;
adam@1915	1287 }
adam@1915	1288
adamc@311	1289 int uw_send(uw_context ctx, int sock) {
adamc@666	1290 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462	1291
adamc@462	1292 if (n < 0)
adamc@462	1293 return n;
adamc@462	1294
adamc@462	1295 n = uw_really_send(sock, "\r\n", 2);
adamc@462	1296
adamc@462	1297 if (n < 0)
adamc@462	1298 return n;
adamc@462	1299
adamc@666	1300 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462	1301 }
adamc@462	1302
adamc@856	1303 int uw_print(uw_context ctx, int fd) {
adamc@856	1304 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1305
adamc@856	1306 if (n < 0)
adamc@856	1307 return n;
adamc@856	1308
adamc@856	1309 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1310
adamc@856	1311 if (n < 0)
adamc@856	1312 return n;
adamc@856	1313
adamc@856	1314 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1315 }
adamc@856	1316
adamc@860	1317 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1318 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1319
adamc@860	1320 if (n < 0)
adamc@860	1321 return n;
adamc@860	1322
adamc@860	1323 n = output(data, "\r\n", 2);
adamc@860	1324
adamc@860	1325 if (n < 0)
adamc@860	1326 return n;
adamc@860	1327
adamc@860	1328 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1329 }
adamc@860	1330
adamc@462	1331 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1332 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1333 }
adamc@462	1334
adamc@462	1335 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1336 int len = strlen(s);
adamc@462	1337
adamc@462	1338 uw_check_headers(ctx, len + 1);
adamc@666	1339 strcpy(ctx->outHeaders.front, s);
adamc@666	1340 ctx->outHeaders.front += len;
adamc@562	1341 }
adamc@562	1342
adamc@1110	1343 void uw_clear_headers(uw_context ctx) {
adam@1369	1344 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1345 }
adamc@1110	1346
adamc@562	1347 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1348 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1349 }
adamc@562	1350
adamc@562	1351 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1352 int len = strlen(s);
adamc@562	1353
adamc@562	1354 uw_check_script(ctx, len + 1);
adamc@666	1355 strcpy(ctx->script.front, s);
adamc@666	1356 ctx->script.front += len;
adamc@562	1357 }
adamc@562	1358
adam@1446	1359 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1360 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1361 uw_write_script(ctx, "sig=\"");
adam@1671	1362 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1363 uw_write_script(ctx, "\";");
adam@1671	1364 }
adam@1671	1365
adam@1446	1366 return ctx->script.start;
adam@1446	1367 }
adam@1446	1368
adamc@695	1369 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1370 if (s[0] == 0)
adamc@695	1371 return "";
adamc@695	1372 else {
adamc@695	1373 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1374 sprintf(r, " onload='%s'", s);
adamc@695	1375 return r;
adamc@695	1376 }
adamc@695	1377 }
adamc@695	1378
adamc@1042	1379 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1380 if (ctx->script_header[0] == 0)
adamc@1042	1381 return "";
adamc@1042	1382 else {
vshabanoff@1763	1383 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763	1384 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042	1385 return r;
adamc@1042	1386 }
adamc@1042	1387 }
adamc@1042	1388
adamc@694	1389 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1390 if (ctx->client == NULL) {
adamc@736	1391 if (ctx->needs_sig) {
adamc@1094	1392 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1393 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1394 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1395 return r;
adamc@736	1396 }
adamc@736	1397 else
adamc@736	1398 return "";
adamc@736	1399 } else {
adamc@1094	1400 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1401 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1402 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1403 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1404 (ctx->isPost ? "true" : "false"),
adamc@682	1405 ctx->client->id,
adamc@682	1406 ctx->client->pass,
adamc@1094	1407 ctx->app->url_prefix,
adamc@1094	1408 ctx->app->timeout,
adamc@736	1409 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1410 sig,
adamc@736	1411 ctx->needs_sig ? "\";" : "");
adamc@679	1412 return r;
adamc@668	1413 }
adamc@667	1414 }
adamc@667	1415
adamc@574	1416 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1417 char r, s2;
adamc@574	1418
adam@1446	1419 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1420
adamc@666	1421 r = s2 = ctx->heap.front;
adamc@574	1422 *s2++ = '"';
adamc@574	1423
adamc@574	1424 for (; *s; s++) {
adam@1286	1425 unsigned char c = *s;
adamc@574	1426
adamc@574	1427 switch (c) {
adamc@574	1428 case '"':
adamc@574	1429 strcpy(s2, "\\\"");
adamc@574	1430 s2 += 2;
adamc@574	1431 break;
adamc@1027	1432 case '\'':
adamc@1027	1433 strcpy(s2, "\\047");
adamc@1027	1434 s2 += 4;
adamc@1027	1435 break;
adamc@574	1436 case '\\':
adamc@574	1437 strcpy(s2, "\\\\");
adamc@574	1438 s2 += 2;
adamc@574	1439 break;
adam@1457	1440 case '<':
adam@1457	1441 strcpy(s2, "\\074");
adam@1457	1442 s2 += 4;
adam@1457	1443 break;
adamc@574	1444 default:
adam@1286	1445 if (isprint((int)c) \|\| c >= 128)
adamc@574	1446 *s2++ = c;
adamc@574	1447 else {
adam@1429	1448 sprintf(s2, "\\%03o", c);
adamc@574	1449 s2 += 4;
adamc@574	1450 }
adamc@574	1451 }
adamc@574	1452 }
adamc@574	1453
adamc@574	1454 strcpy(s2, "\"");
adamc@910	1455 ctx->heap.front = s2 + 2;
adamc@574	1456 return r;
adamc@574	1457 }
adamc@574	1458
adam@1286	1459 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1460 unsigned char c = c1;
adamc@1025	1461 char r, s2;
adamc@1025	1462
adam@1446	1463 uw_check_heap(ctx, 7);
adamc@1025	1464
adamc@1025	1465 r = s2 = ctx->heap.front;
adamc@1025	1466 *s2++ = '"';
adamc@1025	1467
adamc@1025	1468 switch (c) {
adamc@1025	1469 case '"':
adamc@1025	1470 strcpy(s2, "\\\"");
adamc@1025	1471 s2 += 2;
adamc@1025	1472 break;
adamc@1027	1473 case '\'':
adamc@1027	1474 strcpy(s2, "\\047");
adamc@1027	1475 s2 += 4;
adamc@1027	1476 break;
adamc@1025	1477 case '\\':
adamc@1025	1478 strcpy(s2, "\\\\");
adamc@1025	1479 s2 += 2;
adamc@1025	1480 break;
adam@1457	1481 case '<':
adam@1457	1482 strcpy(s2, "\\074");
adam@1457	1483 s2 += 4;
adam@1457	1484 break;
adamc@1025	1485 default:
adam@1286	1486 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1487 *s2++ = c;
adamc@1025	1488 else {
adam@1429	1489 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1490 s2 += 4;
adamc@1025	1491 }
adamc@1025	1492 }
adamc@1025	1493
adamc@1025	1494 strcpy(s2, "\"");
adamc@1025	1495 ctx->heap.front = s2 + 2;
adamc@1025	1496 return r;
adamc@1025	1497 }
adamc@1025	1498
adamc@574	1499 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1500 char r, s2;
adamc@574	1501
adam@1446	1502 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1503
adamc@666	1504 r = s2 = ctx->script.front;
adamc@574	1505 *s2++ = '"';
adamc@574	1506
adamc@574	1507 for (; *s; s++) {
adam@1286	1508 unsigned char c = *s;
adamc@574	1509
adamc@574	1510 switch (c) {
adamc@577	1511 case '\'':
adamc@1027	1512 strcpy(s2, "\\");
adamc@574	1513 s2 += 2;
adamc@574	1514 break;
adamc@574	1515 case '\\':
adamc@574	1516 strcpy(s2, "\\\\");
adamc@574	1517 s2 += 2;
adamc@574	1518 break;
adam@1457	1519 case '<':
adam@1457	1520 strcpy(s2, "\\074");
adam@1457	1521 s2 += 4;
adam@1457	1522 break;
adamc@574	1523 default:
adam@1286	1524 if (isprint((int)c) \|\| c >= 128)
adamc@574	1525 *s2++ = c;
adamc@574	1526 else {
adam@1429	1527 sprintf(s2, "\\%03o", c);
adamc@574	1528 s2 += 4;
adamc@574	1529 }
adamc@574	1530 }
adamc@574	1531 }
adamc@574	1532
adamc@574	1533 strcpy(s2, "\"");
adamc@666	1534 ctx->script.front = s2 + 1;
adamc@574	1535 return r;
adamc@574	1536 }
adamc@574	1537
adamc@682	1538 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1539 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1540 return "null";
adamc@682	1541 else {
adamc@682	1542 int len;
adamc@682	1543 char *r;
adamc@682	1544
adamc@682	1545 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1546 r = ctx->heap.front;
adamc@682	1547 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1548 ctx->heap.front += len+1;
adamc@682	1549 return r;
adamc@682	1550 }
adamc@682	1551 }
adamc@682	1552
adam@1446	1553 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1554 int len;
adamc@577	1555 size_t s_len = strlen(s);
adamc@562	1556
adam@1446	1557 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1558 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1559 ctx->script.front += len;
adamc@666	1560 strcpy(ctx->script.front, s);
adamc@666	1561 ctx->script.front += s_len;
adamc@970	1562 strcpy(ctx->script.front, "));");
adamc@972	1563 ctx->script.front += 3;
adamc@562	1564
adam@1446	1565 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1566 return r;
adam@1446	1567 }
adam@1446	1568
adam@1446	1569 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1570 int len;
adamc@577	1571 size_t s_len = strlen(s);
adamc@577	1572
adam@1446	1573 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1574 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1575 ctx->script.front += len;
adamc@666	1576 strcpy(ctx->script.front, s);
adamc@666	1577 ctx->script.front += s_len;
adamc@970	1578 strcpy(ctx->script.front, "));");
adamc@972	1579 ctx->script.front += 3;
adamc@577	1580
adamc@577	1581 return uw_unit_v;
adamc@577	1582 }
adamc@577	1583
adamc@311	1584 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1585 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1586 }
adamc@117	1587
adamc@311	1588 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1589 *(ctx->page.front)++ = c;
adam@1413	1590 *ctx->page.front = 0;
adamc@117	1591 }
adamc@117	1592
adamc@311	1593 void uw_writec(uw_context ctx, char c) {
adam@1413	1594 uw_check(ctx, 2);
adamc@311	1595 uw_writec_unsafe(ctx, c);
adamc@117	1596 }
adamc@117	1597
adamc@311	1598 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1599 int len = strlen(s);
adamc@666	1600 memcpy(ctx->page.front, s, len);
adamc@666	1601 ctx->page.front += len;
adamc@117	1602 }
adamc@117	1603
adamc@311	1604 void uw_write(uw_context ctx, const char* s) {
adamc@311	1605 uw_check(ctx, strlen(s) + 1);
adamc@311	1606 uw_write_unsafe(ctx, s);
adamc@666	1607 *ctx->page.front = 0;
adamc@102	1608 }
adamc@106	1609
adamc@311	1610 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1611 char *result;
adamc@136	1612 int len;
adamc@311	1613 uw_check_heap(ctx, INTS_MAX);
adamc@666	1614 result = ctx->heap.front;
adamc@276	1615 sprintf(result, "%lld%n", n, &len);
adamc@666	1616 ctx->heap.front += len+1;
adamc@136	1617 return result;
adamc@106	1618 }
adamc@106	1619
adamc@311	1620 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1621 char *result;
adamc@136	1622 int len;
adamc@311	1623 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1624 result = ctx->heap.front;
adamc@136	1625 sprintf(result, "%g%n", n, &len);
adamc@666	1626 ctx->heap.front += len+1;
adamc@136	1627 return result;
adamc@106	1628 }
adamc@106	1629
adamc@311	1630 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1631 int len = strlen(s);
adamc@136	1632 char result, p;
adamc@311	1633 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1634
adamc@666	1635 result = p = ctx->heap.front;
adamc@136	1636
adamc@136	1637 for (; *s; s++) {
adamc@1054	1638 unsigned char c = *s;
adamc@136	1639
adamc@136	1640 if (c == '"') {
adamc@136	1641 strcpy(p, """);
adamc@136	1642 p += 6;
adamc@136	1643 } else if (c == '&') {
adamc@136	1644 strcpy(p, "&");
adamc@136	1645 p += 5;
adamc@136	1646 }
adamc@1059	1647 else
adamc@136	1648 *p++ = c;
adamc@136	1649 }
adamc@136	1650
adamc@137	1651 *p++ = 0;
adamc@666	1652 ctx->heap.front = p;
adamc@136	1653 return result;
adamc@106	1654 }
adamc@106	1655
adamc@1011	1656 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1657 char result, p;
adamc@1011	1658 uw_check_heap(ctx, 7);
adamc@1011	1659
adamc@1011	1660 result = p = ctx->heap.front;
adamc@1011	1661
adamc@1011	1662 if (c == '"') {
adamc@1011	1663 strcpy(p, """);
adamc@1011	1664 p += 6;
adamc@1011	1665 } else if (c == '&') {
adamc@1011	1666 strcpy(p, "&");
adamc@1011	1667 p += 5;
adamc@1011	1668 }
adamc@1059	1669 else
adamc@1011	1670 *p++ = c;
adamc@1011	1671
adamc@1011	1672 *p++ = 0;
adamc@1011	1673 ctx->heap.front = p;
adamc@1011	1674 return result;
adamc@1011	1675 }
adamc@1011	1676
adamc@721	1677 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1678 return s;
adamc@721	1679 }
adamc@721	1680
adamc@311	1681 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1682 int len;
adamc@117	1683
adamc@666	1684 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1685 ctx->page.front += len;
adamc@106	1686 }
adamc@106	1687
adamc@428	1688 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1689 uw_check(ctx, INTS_MAX);
adamc@311	1690 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1691
adamc@428	1692 return uw_unit_v;
adamc@106	1693 }
adamc@106	1694
adamc@428	1695 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1696 int len;
adamc@117	1697
adamc@311	1698 uw_check(ctx, FLOATS_MAX);
adamc@666	1699 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1700 ctx->page.front += len;
adamc@428	1701
adamc@428	1702 return uw_unit_v;
adamc@117	1703 }
adamc@117	1704
adamc@428	1705 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1706 uw_check(ctx, strlen(s) * 6);
adamc@117	1707
adamc@106	1708 for (; *s; s++) {
adamc@1054	1709 unsigned char c = *s;
adamc@106	1710
adamc@106	1711 if (c == '"')
adamc@311	1712 uw_write_unsafe(ctx, """);
adamc@136	1713 else if (c == '&')
adamc@311	1714 uw_write_unsafe(ctx, "&");
adamc@1059	1715 else
adamc@311	1716 uw_writec_unsafe(ctx, c);
adamc@106	1717 }
adamc@428	1718
adamc@428	1719 return uw_unit_v;
adamc@106	1720 }
adamc@120	1721
adamc@1011	1722 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1723 uw_check(ctx, 6);
adamc@1011	1724
adamc@1011	1725 if (c == '"')
adamc@1011	1726 uw_write_unsafe(ctx, """);
adamc@1011	1727 else if (c == '&')
adamc@1011	1728 uw_write_unsafe(ctx, "&");
adamc@1059	1729 else
adamc@1011	1730 uw_writec_unsafe(ctx, c);
adamc@1011	1731
adamc@1011	1732 return uw_unit_v;
adamc@1011	1733 }
adamc@1011	1734
adamc@120	1735
adamc@311	1736 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1737 int len;
adamc@137	1738 char *r;
adamc@137	1739
adamc@311	1740 uw_check_heap(ctx, INTS_MAX);
adamc@666	1741 r = ctx->heap.front;
adamc@276	1742 sprintf(r, "%lld%n", n, &len);
adamc@666	1743 ctx->heap.front += len+1;
adamc@137	1744 return r;
adamc@120	1745 }
adamc@120	1746
adamc@682	1747 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1748 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1749 return "";
adamc@682	1750 else {
adamc@682	1751 int len;
adamc@682	1752 char *r;
adamc@679	1753
adamc@682	1754 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1755 r = ctx->heap.front;
adamc@682	1756 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1757 ctx->heap.front += len+1;
adamc@682	1758 return r;
adamc@682	1759 }
adamc@679	1760 }
adamc@679	1761
adamc@311	1762 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1763 int len;
adamc@137	1764 char *r;
adamc@137	1765
adamc@311	1766 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1767 r = ctx->heap.front;
adamc@137	1768 sprintf(r, "%g%n", n, &len);
adamc@666	1769 ctx->heap.front += len+1;
adamc@137	1770 return r;
adamc@120	1771 }
adamc@120	1772
adamc@311	1773 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1774 char r, p;
adamc@137	1775
adamc@925	1776 if (s[0] == '\0')
adamc@925	1777 return "_";
adamc@925	1778
adamc@925	1779 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1780
adamc@925	1781 r = p = ctx->heap.front;
adamc@925	1782 if (s[0] == '_')
adamc@925	1783 *p++ = '_';
adamc@925	1784
adamc@925	1785 for (; *s; s++) {
adamc@1087	1786 unsigned char c = *s;
adamc@137	1787
adamc@137	1788 if (c == ' ')
adamc@137	1789 *p++ = '+';
adamc@137	1790 else if (isalnum(c))
adamc@137	1791 *p++ = c;
adamc@137	1792 else {
adamc@1259	1793 sprintf(p, ".%02X", c);
adamc@137	1794 p += 3;
adamc@137	1795 }
adamc@137	1796 }
adamc@137	1797
adamc@137	1798 *p++ = 0;
adamc@666	1799 ctx->heap.front = p;
adamc@137	1800 return r;
adamc@120	1801 }
adamc@120	1802
adamc@311	1803 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1804 if (b == uw_Basis_False)
adamc@186	1805 return "0";
adamc@186	1806 else
adamc@186	1807 return "1";
adamc@186	1808 }
adamc@186	1809
adam@1620	1810 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1811 char *r;
adam@1620	1812 int len;
adam@1620	1813 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1814 r = ctx->heap.front;
adam@1620	1815 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1816 ctx->heap.front += len+1;
adam@1620	1817 return r;
adam@1620	1818 }
adam@1620	1819
adamc@311	1820 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1821 int len;
adamc@120	1822
adamc@666	1823 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1824 ctx->page.front += len;
adamc@120	1825 }
adamc@120	1826
adamc@428	1827 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1828 uw_check(ctx, INTS_MAX);
adamc@311	1829 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1830
adamc@428	1831 return uw_unit_v;
adamc@120	1832 }
adamc@120	1833
adamc@682	1834 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1835 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1836 int len;
adamc@682	1837
adamc@682	1838 uw_check(ctx, INTS_MAX + 1);
adamc@682	1839 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1840 ctx->page.front += len;
adamc@682	1841 }
adamc@682	1842
adamc@679	1843 return uw_unit_v;
adamc@679	1844 }
adamc@679	1845
adamc@428	1846 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1847 int len;
adamc@120	1848
adamc@311	1849 uw_check(ctx, FLOATS_MAX);
adamc@666	1850 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1851 ctx->page.front += len;
adamc@428	1852
adamc@428	1853 return uw_unit_v;
adamc@120	1854 }
adamc@120	1855
adamc@488	1856 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1857 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1858 }
adamc@488	1859
adam@1404	1860 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1861 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1862 }
adam@1404	1863
adamc@428	1864 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1865 if (s[0] == '\0') {
adamc@925	1866 uw_check(ctx, 1);
adamc@925	1867 uw_writec_unsafe(ctx, '_');
adamc@925	1868 return uw_unit_v;
adamc@925	1869 }
adamc@925	1870
adamc@925	1871 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1872
adamc@925	1873 if (s[0] == '_')
adamc@925	1874 uw_writec_unsafe(ctx, '_');
adamc@120	1875
adamc@120	1876 for (; *s; s++) {
adamc@1087	1877 unsigned char c = *s;
adamc@120	1878
adamc@120	1879 if (c == ' ')
adamc@311	1880 uw_writec_unsafe(ctx, '+');
adamc@120	1881 else if (isalnum(c))
adamc@311	1882 uw_writec_unsafe(ctx, c);
adamc@120	1883 else {
adamc@1259	1884 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1885 ctx->page.front += 3;
adamc@120	1886 }
adamc@120	1887 }
adamc@428	1888
adamc@428	1889 return uw_unit_v;
adamc@120	1890 }
adamc@120	1891
adamc@428	1892 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1893 if (b == uw_Basis_False)
adamc@311	1894 uw_writec(ctx, '0');
adamc@186	1895 else
adamc@311	1896 uw_writec(ctx, '1');
adamc@428	1897
adamc@428	1898 return uw_unit_v;
adamc@186	1899 }
adamc@186	1900
adam@1620	1901 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	1902 int len;
adam@1620	1903
adam@1620	1904 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	1905 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1906 ctx->page.front += len;
adam@1620	1907
adam@1620	1908 return uw_unit_v;
adam@1620	1909 }
adam@1620	1910
adamc@120	1911
adamc@311	1912 static char uw_unurlify_advance(char s) {
adamc@144	1913 char *new_s = strchr(s, '/');
adamc@120	1914
adamc@120	1915 if (new_s)
adamc@120	1916 *new_s++ = 0;
adamc@120	1917 else
adamc@144	1918 new_s = strchr(s, 0);
adamc@144	1919
adamc@144	1920 return new_s;
adamc@144	1921 }
adamc@144	1922
adamc@311	1923 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1924 char new_s = uw_unurlify_advance(s);
adamc@311	1925 uw_Basis_int r;
adamc@120	1926
adamc@276	1927 r = atoll(*s);
adamc@120	1928 *s = new_s;
adamc@120	1929 return r;
adamc@120	1930 }
adamc@120	1931
adamc@311	1932 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1933 char new_s = uw_unurlify_advance(s);
adamc@311	1934 uw_Basis_float r;
adamc@120	1935
adamc@120	1936 r = atof(*s);
adamc@120	1937 *s = new_s;
adamc@120	1938 return r;
adamc@120	1939 }
adamc@120	1940
adamc@488	1941 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	1942 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	1943 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	1944 return r;
adamc@488	1945 }
adamc@488	1946
adamc@1023	1947 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1948 char s1, s2 = s;
adamc@144	1949 int n;
adamc@136	1950
adamc@1023	1951 if (!fromClient) {
adamc@1023	1952 if (*s2 == '_')
adamc@1023	1953 ++s2;
adamc@1259	1954 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1955 s2 += 3;
adamc@1023	1956 }
adamc@925	1957
adamc@927	1958 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	1959 unsigned char c = *s2;
adamc@136	1960
adamc@136	1961 switch (c) {
adamc@136	1962 case '+':
adamc@136	1963 *s1 = ' ';
adamc@136	1964 break;
adamc@136	1965 case '%':
adamc@169	1966 if (s2[1] == 0)
adamc@311	1967 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1968 if (s2[2] == 0)
adamc@311	1969 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1970 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	1971 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	1972 *s1 = n;
adamc@136	1973 s2 += 2;
adamc@136	1974 break;
adamc@1259	1975 case '.':
adamc@1259	1976 if (!fromClient) {
adamc@1259	1977 if (s2[1] == 0)
adamc@1259	1978 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	1979 if (s2[2] == 0)
adamc@1259	1980 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	1981 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	1982 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	1983 *s1 = n;
adamc@1259	1984 s2 += 2;
adamc@1259	1985 break;
adamc@1259	1986 }
adamc@136	1987 default:
adamc@136	1988 *s1 = c;
adamc@136	1989 }
adamc@136	1990 }
adamc@136	1991 *s1++ = 0;
adamc@144	1992 return s1;
adamc@144	1993 }
adamc@144	1994
adamc@311	1995 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	1996 char new_s = uw_unurlify_advance(s);
adamc@311	1997 uw_Basis_bool r;
adamc@186	1998
adamc@186	1999 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2000 r = uw_Basis_False;
adamc@186	2001 else
adamc@311	2002 r = uw_Basis_True;
adamc@186	2003
adamc@186	2004 *s = new_s;
adamc@186	2005 return r;
adamc@186	2006 }
adamc@186	2007
adamc@311	2008 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2009 char new_s = uw_unurlify_advance(s);
adamc@1134	2010 char *r;
adamc@1134	2011 int len;
adamc@144	2012
adamc@200	2013 len = strlen(*s);
adamc@311	2014 uw_check_heap(ctx, len + 1);
adamc@144	2015
adamc@666	2016 r = ctx->heap.front;
adamc@1023	2017 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2018 *s = new_s;
adamc@1023	2019 return r;
adamc@1023	2020 }
adamc@1023	2021
adamc@1109	2022 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2023 s = uw_unurlify_advance(s);
adamc@1109	2024 return uw_unit_v;
adamc@1109	2025 }
adamc@1109	2026
adamc@1023	2027 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2028 char new_s = uw_unurlify_advance(s);
adamc@1134	2029 char *r;
adamc@1134	2030 int len;
adamc@1023	2031
adamc@1023	2032 len = strlen(*s);
adamc@1023	2033 uw_check_heap(ctx, len + 1);
adamc@1023	2034
adamc@1023	2035 r = ctx->heap.front;
adamc@1023	2036 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2037 *s = new_s;
adamc@136	2038 return r;
adamc@120	2039 }
adamc@135	2040
adamc@135	2041
adamc@311	2042 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2043 int len;
adamc@286	2044 char *r;
adamc@286	2045
adamc@311	2046 uw_check_heap(ctx, INTS_MAX);
adamc@666	2047 r = ctx->heap.front;
adamc@286	2048 sprintf(r, "%lld%n", n, &len);
adamc@666	2049 ctx->heap.front += len+1;
adamc@286	2050 return r;
adamc@286	2051 }
adamc@286	2052
adamc@428	2053 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2054 int len;
adamc@286	2055
adamc@311	2056 uw_check(ctx, INTS_MAX);
adamc@666	2057 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2058 ctx->page.front += len;
adamc@428	2059
adamc@428	2060 return uw_unit_v;
adamc@286	2061 }
adamc@286	2062
adam@1358	2063 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2064 unsigned int n = ch;
adam@1358	2065 int len;
adam@1358	2066 char *r;
adam@1358	2067
adam@1358	2068 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2069 r = ctx->heap.front;
adam@1358	2070 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2071 ctx->heap.front += len+1;
adam@1358	2072 return r;
adam@1358	2073 }
adam@1358	2074
adam@1358	2075 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2076 unsigned int n = ch;
adam@1358	2077 int len;
adam@1358	2078
adam@1358	2079 uw_check(ctx, INTS_MAX+3);
adam@1358	2080 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2081 ctx->page.front += len;
adam@1358	2082 return uw_unit_v;
adam@1358	2083 }
adam@1358	2084
adamc@311	2085 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2086 int len;
adamc@286	2087 char *r;
adamc@286	2088
adamc@311	2089 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2090 r = ctx->heap.front;
adamc@286	2091 sprintf(r, "%g%n", n, &len);
adamc@666	2092 ctx->heap.front += len+1;
adamc@286	2093 return r;
adamc@286	2094 }
adamc@286	2095
adamc@428	2096 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2097 int len;
adamc@286	2098
adamc@311	2099 uw_check(ctx, FLOATS_MAX);
adamc@666	2100 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2101 ctx->page.front += len;
adamc@428	2102
adamc@428	2103 return uw_unit_v;
adamc@286	2104 }
adamc@286	2105
adam@1365	2106 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2107 int len;
adam@1360	2108 char *r;
adam@1360	2109
adam@1360	2110 uw_check_heap(ctx, INTS_MAX);
adam@1360	2111 r = ctx->heap.front;
adamc@1377	2112 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2113 ctx->heap.front += len+1;
adam@1360	2114 return r;
adam@1360	2115 }
adam@1360	2116
adam@1365	2117 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2118 int len;
adam@1360	2119
adam@1360	2120 uw_check(ctx, INTS_MAX);
adam@1360	2121 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2122 ctx->page.front += len;
adam@1360	2123
adam@1360	2124 return uw_unit_v;
adam@1360	2125 }
adam@1360	2126
adam@1444	2127 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2128 char r, s2;
adamc@137	2129
adamc@311	2130 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2131
adamc@666	2132 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2133 unsigned char c = *s;
adamc@137	2134
adamc@137	2135 switch (c) {
adamc@137	2136 case '<':
adamc@137	2137 strcpy(s2, "<");
adamc@137	2138 s2 += 4;
adamc@137	2139 break;
adamc@137	2140 case '&':
adamc@137	2141 strcpy(s2, "&");
adamc@137	2142 s2 += 5;
adamc@137	2143 break;
adamc@137	2144 default:
adamc@1059	2145 *s2++ = c;
adamc@137	2146 }
adamc@137	2147 }
adamc@137	2148
adamc@137	2149 *s2++ = 0;
adamc@666	2150 ctx->heap.front = s2;
adamc@137	2151 return r;
adamc@135	2152 }
adamc@135	2153
adamc@428	2154 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2155 uw_check(ctx, strlen(s) * 6);
adamc@135	2156
adamc@135	2157 for (; *s; s++) {
adamc@1054	2158 unsigned char c = *s;
adamc@135	2159
adamc@135	2160 switch (c) {
adamc@135	2161 case '<':
adamc@311	2162 uw_write_unsafe(ctx, "<");
adamc@135	2163 break;
adamc@135	2164 case '&':
adamc@311	2165 uw_write_unsafe(ctx, "&");
adamc@135	2166 break;
adamc@135	2167 default:
adamc@1059	2168 uw_writec_unsafe(ctx, c);
adamc@135	2169 }
adamc@135	2170 }
adamc@428	2171
adamc@428	2172 return uw_unit_v;
adamc@135	2173 }
adamc@180	2174
adamc@311	2175 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2176 if (b == uw_Basis_False)
adamc@286	2177 return "False";
adamc@286	2178 else
adamc@286	2179 return "True";
adamc@286	2180 }
adamc@286	2181
adamc@428	2182 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2183 if (b == uw_Basis_False) {
adamc@311	2184 uw_check(ctx, 6);
adamc@666	2185 strcpy(ctx->page.front, "False");
adamc@666	2186 ctx->page.front += 5;
adamc@286	2187 } else {
adamc@311	2188 uw_check(ctx, 5);
adamc@666	2189 strcpy(ctx->page.front, "True");
adamc@666	2190 ctx->page.front += 4;
adamc@286	2191 }
adamc@428	2192
adamc@428	2193 return uw_unit_v;
adamc@286	2194 }
adamc@286	2195
adamc@436	2196 #define TIME_FMT "%x %X"
adamc@438	2197 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2198 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2199
adam@1629	2200 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2201
adamc@436	2202 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2203 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2204 }
adamc@436	2205
adamc@436	2206 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2207 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2208 }
adamc@436	2209
adam@1446	2210 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2211 int len;
adam@1446	2212 char *r;
adam@1446	2213
adam@1446	2214 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2215 r = ctx->heap.front;
adam@1446	2216 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2217 ctx->heap.front += len+1;
adam@1446	2218 return r;
adam@1446	2219 }
adam@1446	2220
adam@1446	2221 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2222 int len;
adam@1446	2223
adam@1446	2224 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2225 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2226 ctx->page.front += len;
adam@1446	2227
adam@1446	2228 return uw_unit_v;
adam@1446	2229 }
adam@1446	2230
adamc@821	2231 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2232 while (n >= 0) {
adam@1388	2233 if (*s == 0)
adam@1388	2234 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2235
adam@1388	2236 if (n == 0)
adam@1388	2237 return *s;
adam@1388	2238
adam@1388	2239 --n;
adam@1388	2240 ++s;
adam@1388	2241 }
adam@1388	2242
adam@1388	2243 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2244 }
adamc@821	2245
adamc@821	2246 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2247 while (n >= 0) {
adam@1388	2248 if (*s == 0 \|\| n == 0)
adam@1388	2249 return s;
adam@1388	2250
adam@1388	2251 --n;
adam@1388	2252 ++s;
adam@1388	2253 }
adam@1388	2254
adam@1388	2255 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2256 }
adamc@821	2257
adamc@828	2258 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2259 return strlen(s);
adamc@828	2260 }
adamc@828	2261
adam@1388	2262 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2263 while (n > 0) {
adam@1388	2264 if (*s == 0)
adam@1388	2265 return uw_Basis_False;
adam@1388	2266
adam@1388	2267 --n;
adam@1388	2268 ++s;
adam@1388	2269 }
adam@1388	2270
adam@1388	2271 return uw_Basis_True;
adam@1388	2272 }
adam@1388	2273
adamc@829	2274 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2275 return strchr(s, ch);
adamc@829	2276 }
adamc@829	2277
adamc@831	2278 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2279 return strcspn(s, chs);
adamc@831	2280 }
adamc@831	2281
adamc@829	2282 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2283 uw_Basis_string r = strchr(s, ch);
adamc@829	2284 if (r == NULL)
adamc@829	2285 return NULL;
adamc@829	2286 else {
adamc@829	2287 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2288 *nr = r - s;
adamc@829	2289 return nr;
adamc@829	2290 }
adamc@829	2291 }
adamc@829	2292
adam@1390	2293 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2294 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2295 if (r == NULL)
adam@1390	2296 return NULL;
adam@1390	2297 else {
adam@1390	2298 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2299 *nr = r - haystack;
adam@1390	2300 return nr;
adam@1390	2301 }
adam@1390	2302 }
adam@1390	2303
adamc@311	2304 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2305 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2306 char *s;
adamc@180	2307
adamc@311	2308 uw_check_heap(ctx, len);
adamc@180	2309
adamc@666	2310 s = ctx->heap.front;
adamc@180	2311
adamc@180	2312 strcpy(s, s1);
adamc@180	2313 strcat(s, s2);
adamc@666	2314 ctx->heap.front += len;
adamc@180	2315
adamc@180	2316 return s;
adamc@180	2317 }
adamc@278	2318
adamc@829	2319 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2320 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2321
adamc@829	2322 if (start < 0)
adamc@829	2323 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2324 if (len < 0)
adamc@829	2325 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2326 if (start + len > full_len)
adamc@829	2327 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2328
adamc@829	2329 if (start + len == full_len)
adamc@829	2330 return &s[start];
adamc@829	2331 else {
adamc@829	2332 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2333 memcpy(r, s+start, len);
adamc@829	2334 r[len] = 0;
adamc@829	2335 return r;
adamc@829	2336 }
adamc@829	2337
adamc@829	2338 }
adamc@829	2339
adamc@1023	2340 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2341 char *r;
adamc@1023	2342
adamc@1023	2343 uw_check_heap(ctx, 2);
adamc@1023	2344 r = ctx->heap.front;
adamc@1023	2345 r[0] = ch;
adamc@1023	2346 r[1] = 0;
adamc@1023	2347
adamc@1023	2348 ctx->heap.front += 2;
adamc@1023	2349
adamc@1023	2350 return r;
adamc@1023	2351 }
adamc@1023	2352
adamc@737	2353 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2354 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2355 char *s;
adamc@278	2356
adamc@311	2357 uw_check_heap(ctx, len);
adamc@278	2358
adamc@666	2359 s = ctx->heap.front;
adamc@278	2360
adamc@278	2361 strcpy(s, s1);
adamc@666	2362 ctx->heap.front += len;
adamc@278	2363
adamc@278	2364 return s;
adamc@278	2365 }
adamc@280	2366
adam@1295	2367 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2368 if (ctx->error_message[0]) {
adam@1295	2369 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2370 ctx->error_message[0] = 0;
adam@1295	2371 return s;
adam@1295	2372 } else
adam@1295	2373 return NULL;
adam@1295	2374 }
adam@1295	2375
adamc@737	2376 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2377 if (s1)
adamc@737	2378 return uw_strdup(ctx, s1);
adamc@493	2379 else
adamc@493	2380 return NULL;
adamc@493	2381 }
adamc@493	2382
adamc@742	2383 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2384 char *r = uw_malloc(ctx, len);
adamc@742	2385 memcpy(r, p, len);
adamc@742	2386 return r;
adamc@742	2387 }
adamc@280	2388
adamc@879	2389 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2390
adamc@311	2391 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2392 int len;
adamc@281	2393 char *r;
adamc@281	2394
adamc@311	2395 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2396 r = ctx->heap.front;
adamc@879	2397 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2398 ctx->heap.front += len+1;
adamc@281	2399 return r;
adamc@281	2400 }
adamc@281	2401
adamc@467	2402 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2403 if (n == NULL)
adamc@467	2404 return "NULL";
adamc@467	2405 else
adamc@467	2406 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2407 }
adamc@467	2408
adamc@879	2409 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879	2410
adamc@311	2411 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2412 int len;
adamc@281	2413 char *r;
adamc@281	2414
adamc@311	2415 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2416 r = ctx->heap.front;
adamc@879	2417 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2418 ctx->heap.front += len+1;
adamc@281	2419 return r;
adamc@281	2420 }
adamc@281	2421
adamc@467	2422 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2423 if (n == NULL)
adamc@467	2424 return "NULL";
adamc@467	2425 else
adamc@467	2426 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2427 }
adamc@467	2428
adam@1834	2429 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2430 char *uw_sqlsuffixString = "::text";
adamc@1011	2431 char *uw_sqlsuffixChar = "::char";
adamc@281	2432
adamc@311	2433 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2434 char r, s2;
adamc@280	2435
adamc@879	2436 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2437
adamc@666	2438 r = s2 = ctx->heap.front;
adamc@879	2439 if (uw_Estrings)
adamc@879	2440 *s2++ = 'E';
adamc@280	2441 *s2++ = '\'';
adamc@280	2442
adamc@280	2443 for (; *s; s++) {
adamc@280	2444 char c = *s;
adamc@280	2445
adamc@280	2446 switch (c) {
adamc@280	2447 case '\'':
adamc@885	2448 if (uw_Estrings)
adamc@885	2449 strcpy(s2, "\\'");
adamc@885	2450 else
adamc@885	2451 strcpy(s2, "''");
adamc@280	2452 s2 += 2;
adamc@280	2453 break;
adamc@280	2454 case '\\':
adamc@885	2455 if (uw_Estrings) {
adamc@885	2456 strcpy(s2, "\\\\");
adamc@885	2457 s2 += 2;
adamc@885	2458 } else
adamc@885	2459 *s2++ = '\\';
adamc@280	2460 break;
adamc@280	2461 default:
adamc@1150	2462 if (isprint((int)c))
adamc@280	2463 *s2++ = c;
adamc@879	2464 else if (uw_Estrings) {
adam@1857	2465 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2466 s2 += 4;
adamc@280	2467 }
adamc@879	2468 else
adam@1689	2469 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2470 }
adamc@280	2471 }
adamc@280	2472
adamc@879	2473 *s2++ = '\'';
adamc@879	2474 strcpy(s2, uw_sqlsuffixString);
adamc@879	2475 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2476 return r;
adamc@280	2477 }
adamc@281	2478
adamc@1011	2479 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2480 char r, s2;
adamc@1011	2481
adamc@1011	2482 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2483
adamc@1011	2484 r = s2 = ctx->heap.front;
adamc@1011	2485 if (uw_Estrings)
adamc@1011	2486 *s2++ = 'E';
adamc@1011	2487 *s2++ = '\'';
adamc@1011	2488
adamc@1011	2489 switch (c) {
adamc@1011	2490 case '\'':
adamc@1011	2491 if (uw_Estrings)
adamc@1011	2492 strcpy(s2, "\\'");
adamc@1011	2493 else
adamc@1011	2494 strcpy(s2, "''");
adamc@1011	2495 s2 += 2;
adamc@1011	2496 break;
adamc@1011	2497 case '\\':
adamc@1011	2498 if (uw_Estrings) {
adamc@1011	2499 strcpy(s2, "\\\\");
adamc@1011	2500 s2 += 2;
adamc@1011	2501 } else
adamc@1011	2502 *s2++ = '\\';
adamc@1011	2503 break;
adamc@1011	2504 default:
adamc@1150	2505 if (isprint((int)c))
adamc@1011	2506 *s2++ = c;
adamc@1011	2507 else if (uw_Estrings) {
adam@1857	2508 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2509 s2 += 4;
adamc@1011	2510 }
adamc@1011	2511 else
adamc@1011	2512 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2513 }
adamc@1011	2514
adamc@1011	2515 *s2++ = '\'';
adamc@1011	2516 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2517 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2518 return r;
adamc@1011	2519 }
adamc@1011	2520
adamc@879	2521 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2522
adam@1867	2523 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2524 char r, s2;
adamc@737	2525 size_t i;
adamc@737	2526
adam@1867	2527 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2528
adamc@737	2529 r = s2 = ctx->heap.front;
adamc@879	2530 if (uw_Estrings)
adamc@879	2531 *s2++ = 'E';
adam@1867	2532 else
adam@1867	2533 *s2++ = 'X';
adamc@737	2534 *s2++ = '\'';
adamc@737	2535
adamc@737	2536 for (i = 0; i < b.size; ++i) {
adam@1867	2537 unsigned char c = b.data[i];
adam@1867	2538
adam@1867	2539 if (uw_Estrings) {
adam@1867	2540 switch (c) {
adam@1867	2541 case '\'':
adamc@885	2542 strcpy(s2, "\\'");
adam@1867	2543 s2 += 2;
adam@1867	2544 break;
adam@1867	2545 case '\\':
adamc@885	2546 strcpy(s2, "\\\\\\\\");
adamc@885	2547 s2 += 4;
adam@1867	2548 break;
adam@1867	2549 default:
adam@1867	2550 if (isprint((int)c))
adam@1867	2551 *s2++ = c;
adam@1867	2552 else {
adam@1867	2553 sprintf(s2, "\\\\%03o", c);
adam@1867	2554 s2 += 5;
adam@1867	2555 }
adamc@737	2556 }
adam@1867	2557 } else {
adam@1867	2558 sprintf(s2, "%02X", c);
adam@1867	2559 s2 += 2;
adamc@737	2560 }
adam@1867	2561 }
adamc@737	2562
adamc@879	2563 *s2++ = '\'';
adamc@879	2564 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2565 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2566 return r;
adamc@737	2567 }
adamc@737	2568
adamc@682	2569 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2570 int len;
adamc@682	2571 char *r;
adamc@682	2572 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2573
adamc@682	2574 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2575 r = ctx->heap.front;
adamc@879	2576 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2577 ctx->heap.front += len+1;
adamc@682	2578 return r;
adamc@682	2579 }
adamc@682	2580
adamc@682	2581 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2582 int len;
adamc@682	2583 char *r;
adamc@682	2584 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2585
adamc@682	2586 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2587 r = ctx->heap.front;
adamc@682	2588 sprintf(r, "%lld%n", combo, &len);
adamc@682	2589 ctx->heap.front += len+1;
adamc@682	2590 return r;
adamc@682	2591 }
adamc@682	2592
adamc@879	2593 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2594
adamc@682	2595 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2596 int len;
adamc@682	2597 char *r;
adamc@682	2598
adamc@682	2599 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2600 r = ctx->heap.front;
adamc@879	2601 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2602 ctx->heap.front += len+1;
adamc@682	2603 return r;
adamc@682	2604 }
adamc@682	2605
adamc@682	2606 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2607 int len;
adamc@682	2608 char *r;
adamc@682	2609
adamc@682	2610 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2611 r = ctx->heap.front;
adamc@682	2612 sprintf(r, "%u%n", cli, &len);
adamc@682	2613 ctx->heap.front += len+1;
adamc@682	2614 return r;
adamc@682	2615 }
adamc@682	2616
adamc@467	2617 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2618 if (s == NULL)
adamc@467	2619 return "NULL";
adamc@467	2620 else
adamc@467	2621 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2622 }
adamc@467	2623
adamc@311	2624 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2625 if (b == uw_Basis_False)
adamc@281	2626 return "FALSE";
adamc@281	2627 else
adamc@281	2628 return "TRUE";
adamc@281	2629 }
adamc@282	2630
adamc@467	2631 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2632 if (b == NULL)
adamc@467	2633 return "NULL";
adamc@467	2634 else
adamc@467	2635 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2636 }
adamc@467	2637
adamc@439	2638 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2639 size_t len;
adamc@682	2640 char r, s;
adam@1392	2641 struct tm stm = {};
adam@1392	2642 stm.tm_isdst = -1;
adamc@682	2643
adam@1365	2644 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2645 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2646 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2647 if (uw_sql_type_annotations) {
adam@1834	2648 if (t.microseconds) {
adam@1834	2649 r = uw_malloc(ctx, len + 21);
adam@1834	2650 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2651 } else {
adam@1834	2652 r = uw_malloc(ctx, len + 14);
adam@1834	2653 sprintf(r, "'%s'::timestamp", s);
adam@1834	2654 }
adam@1367	2655 } else {
adam@1834	2656 r = uw_malloc(ctx, len + 3);
adam@1834	2657 sprintf(r, "'%s'", s);
adam@1367	2658 }
adamc@682	2659 return r;
adamc@682	2660 } else
adamc@682	2661 return "<Invalid time>";
adamc@682	2662 }
adamc@682	2663
adamc@682	2664 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2665 size_t len;
adamc@439	2666 char *r;
adam@1392	2667 struct tm stm = {};
adam@1392	2668 stm.tm_isdst = -1;
adamc@439	2669
adam@1365	2670 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2671 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2672 r = ctx->heap.front;
adamc@439	2673 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2674 ctx->heap.front += len+1;
adamc@439	2675 return r;
adamc@439	2676 } else
adamc@439	2677 return "<Invalid time>";
adamc@439	2678 }
adamc@439	2679
adam@1364	2680 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2681 size_t len;
adam@1364	2682 char *r;
adam@1392	2683 struct tm stm = {};
adam@1392	2684 stm.tm_isdst = -1;
adam@1364	2685
adam@1365	2686 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2687 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2688 r = ctx->heap.front;
adam@1365	2689 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2690 ctx->heap.front += len;
adam@1365	2691 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2692 ctx->heap.front += 8;
adam@1364	2693 return r;
adam@1364	2694 } else
adam@1364	2695 return "<Invalid time>";
adam@1364	2696 }
adam@1364	2697
adamc@467	2698 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2699 if (t == NULL)
adamc@467	2700 return "NULL";
adamc@467	2701 else
adamc@467	2702 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2703 }
adamc@467	2704
adamc@311	2705 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2706 static uw_Basis_int true = 1;
adamc@311	2707 static uw_Basis_int false = 0;
adamc@282	2708
adamc@311	2709 if (b == uw_Basis_False)
adamc@282	2710 return (char *)&false;
adamc@282	2711 else
adamc@282	2712 return (char *)&true;
adamc@282	2713 }
adamc@284	2714
adamc@311	2715 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2716 int len;
adamc@284	2717 char *r;
adamc@284	2718
adamc@311	2719 uw_check_heap(ctx, INTS_MAX);
adamc@666	2720 r = ctx->heap.front;
adamc@284	2721 sprintf(r, "%lld%n", n, &len);
adamc@666	2722 ctx->heap.front += len+1;
adamc@284	2723 return r;
adamc@284	2724 }
adamc@285	2725
adamc@311	2726 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2727 int len;
adamc@285	2728 char *r;
adamc@285	2729
adamc@311	2730 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2731 r = ctx->heap.front;
adamc@285	2732 sprintf(r, "%g%n", n, &len);
adamc@666	2733 ctx->heap.front += len+1;
adamc@285	2734 return r;
adamc@285	2735 }
adamc@285	2736
adamc@821	2737 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2738 char *r = uw_malloc(ctx, 2);
adamc@821	2739 r[0] = ch;
adamc@821	2740 r[1] = 0;
adamc@821	2741 return r;
adamc@821	2742 }
adamc@821	2743
adamc@311	2744 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2745 if (b == uw_Basis_False)
adamc@285	2746 return "False";
adamc@285	2747 else
adamc@285	2748 return "True";
adamc@285	2749 }
adamc@288	2750
adam@1359	2751 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2752 size_t len;
adam@1352	2753 char *r;
adam@1392	2754 struct tm stm = {};
adam@1392	2755 stm.tm_isdst = -1;
adam@1352	2756
adam@1365	2757 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2758 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2759 r = ctx->heap.front;
adam@1352	2760 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2761 ctx->heap.front += len+1;
adam@1352	2762 return r;
adam@1352	2763 } else
adam@1352	2764 return "<Invalid time>";
adam@1352	2765 }
adam@1352	2766
adam@1629	2767 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2768 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2769 }
adam@1629	2770
adamc@311	2771 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2772 char *endptr;
adamc@311	2773 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2774
adamc@288	2775 if (s != '\0' && endptr == '\0') {
adamc@311	2776 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2777 *r = n;
adamc@288	2778 return r;
adamc@288	2779 } else
adamc@288	2780 return NULL;
adamc@288	2781 }
adamc@289	2782
adamc@311	2783 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2784 char *endptr;
adamc@311	2785 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2786
adamc@289	2787 if (s != '\0' && endptr == '\0') {
adamc@311	2788 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2789 *r = n;
adamc@289	2790 return r;
adamc@289	2791 } else
adamc@289	2792 return NULL;
adamc@289	2793 }
adamc@289	2794
adamc@821	2795 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2796 if (s[0] == 0) {
adamc@821	2797 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2798 r[0] = 0;
adamc@821	2799 return r;
adamc@821	2800 } else if (s[1] != 0)
adamc@821	2801 return NULL;
adamc@821	2802 else {
adamc@821	2803 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2804 r[0] = s[0];
adamc@821	2805 return r;
adamc@821	2806 }
adamc@821	2807 }
adamc@821	2808
adamc@311	2809 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2810 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2811 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2812
adamc@289	2813 if (!strcasecmp (s, "True"))
adamc@289	2814 return &true;
adamc@289	2815 else if (!strcasecmp (s, "False"))
adamc@289	2816 return &false;
adamc@289	2817 else
adamc@289	2818 return NULL;
adamc@289	2819 }
adamc@292	2820
adamc@436	2821 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2822 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2823 struct tm stm = {};
adam@1392	2824 stm.tm_isdst = -1;
adamc@436	2825
adamc@439	2826 if (dot) {
adamc@439	2827 *dot = 0;
adamc@439	2828 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2829 *dot = '.';
adamc@439	2830 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2831 r->seconds = mktime(&stm);
adam@1365	2832 r->microseconds = 0;
adamc@439	2833 return r;
adamc@439	2834 }
adamc@439	2835 else {
adamc@439	2836 *dot = '.';
adamc@439	2837 return NULL;
adamc@439	2838 }
adamc@436	2839 }
adamc@439	2840 else {
adamc@439	2841 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2842 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2843 r->seconds = mktime(&stm);
adam@1365	2844 r->microseconds = 0;
adamc@439	2845 return r;
adamc@439	2846 }
adamc@439	2847 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2848 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2849 r->seconds = mktime(&stm);
adam@1365	2850 r->microseconds = 0;
adamc@439	2851 return r;
adam@1632	2852 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2853 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2854 r->seconds = mktime(&stm);
adam@1632	2855 r->microseconds = 0;
adam@1632	2856 return r;
adamc@439	2857 }
adamc@439	2858 else
adamc@439	2859 return NULL;
adamc@439	2860 }
adamc@436	2861 }
adamc@436	2862
adam@1352	2863 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2864 char *end = strchr(s, 0);
adam@1374	2865 struct tm stm = {};
adam@1392	2866 stm.tm_isdst = -1;
adam@1352	2867
adam@1352	2868 if (strptime(s, fmt, &stm) == end) {
adam@1352	2869 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2870 r->seconds = mktime(&stm);
adam@1365	2871 r->microseconds = 0;
adam@1352	2872 return r;
adam@1352	2873 }
adam@1352	2874 else
adam@1352	2875 return NULL;
adam@1352	2876 }
adam@1352	2877
adamc@311	2878 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2879 char *endptr;
adamc@311	2880 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2881
adamc@292	2882 if (s != '\0' && endptr == '\0')
adamc@292	2883 return n;
adamc@292	2884 else
adam@1444	2885 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2886 }
adamc@293	2887
adamc@682	2888 #include <errno.h>
adamc@682	2889
adamc@678	2890 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2891 unsigned long long n;
adamc@682	2892
adamc@682	2893 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2894 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	2895 else {
adamc@682	2896 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2897 return ch;
adamc@682	2898 }
adamc@682	2899 }
adamc@682	2900
adamc@682	2901 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2902 char *endptr;
adamc@682	2903 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2904
adamc@678	2905 if (s != '\0' && endptr == '\0')
adamc@678	2906 return n;
adamc@678	2907 else
adam@1444	2908 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	2909 }
adamc@678	2910
adamc@311	2911 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2912 char *endptr;
adamc@311	2913 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2914
adamc@293	2915 if (s != '\0' && endptr == '\0')
adamc@293	2916 return n;
adamc@293	2917 else
adam@1444	2918 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2919 }
adamc@293	2920
adamc@821	2921 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2922 if (s[0] == 0)
adamc@821	2923 return 0;
adamc@821	2924 else if (s[1] != 0)
adam@1444	2925 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	2926 else
adamc@821	2927 return s[0];
adamc@821	2928 }
adamc@821	2929
adamc@311	2930 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2931 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2932 return uw_Basis_True;
adamc@296	2933 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2934 return uw_Basis_False;
adamc@293	2935 else
adam@1444	2936 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2937 }
adamc@436	2938
adam@1352	2939 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	2940 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	2941 struct tm stm = {};
adam@1392	2942 stm.tm_isdst = -1;
adam@1352	2943
adam@1352	2944 if (dot) {
adam@1352	2945 *dot = 0;
adam@1352	2946 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	2947 *dot = '.';
adam@1410	2948 char usec[] = "000000";
adam@1410	2949 int len = strlen(dot+1);
adam@1410	2950 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	2951 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	2952 return r;
adam@1352	2953 }
adam@1352	2954 else {
adam@1352	2955 *dot = '.';
adam@1444	2956 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	2957 }
adam@1352	2958 }
adam@1352	2959 else {
adam@1352	2960 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	2961 uw_Basis_time r = { mktime(&stm) };
adam@1365	2962 return r;
adam@1352	2963 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	2964 uw_Basis_time r = { mktime(&stm) };
adam@1365	2965 return r;
adam@1352	2966 } else
adam@1444	2967 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	2968 }
adam@1352	2969 }
adam@1352	2970
adamc@436	2971 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2972 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2973 struct tm stm = {};
adam@1392	2974 stm.tm_isdst = -1;
adamc@436	2975
adamc@438	2976 if (dot) {
adamc@438	2977 *dot = 0;
adamc@438	2978 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2979 *dot = '.';
adam@1365	2980 {
adam@1365	2981 uw_Basis_time r = { mktime(&stm) };
adam@1365	2982 return r;
adam@1365	2983 }
adamc@438	2984 }
adamc@438	2985 else {
adamc@438	2986 *dot = '.';
adam@1444	2987 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	2988 }
adamc@438	2989 }
adamc@438	2990 else {
adam@1365	2991 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	2992 uw_Basis_time r = { mktime(&stm) };
adam@1365	2993 return r;
adam@1365	2994 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	2995 uw_Basis_time r = { mktime(&stm) };
adam@1365	2996 return r;
adam@1632	2997 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2998 uw_Basis_time r = { mktime(&stm) };
adam@1632	2999 return r;
adam@1365	3000 } else
adam@1444	3001 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3002 }
adamc@436	3003 }
adamc@457	3004
adam@1352	3005 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3006 char *end = strchr(s, 0);
adamc@939	3007 struct tm stm = {};
adam@1392	3008 stm.tm_isdst = -1;
adamc@939	3009
adam@1365	3010 if (strptime(s, fmt, &stm) == end) {
adam@1365	3011 uw_Basis_time r = { mktime(&stm) };
adam@1365	3012 return r;
adam@1365	3013 } else
adam@1444	3014 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3015 }
adamc@939	3016
adamc@742	3017 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3018 char *r = ctx->heap.front;
adamc@742	3019 uw_Basis_blob b = {len, r};
adamc@742	3020
adamc@742	3021 uw_check_heap(ctx, len);
adamc@742	3022
adamc@742	3023 while (*s) {
adamc@742	3024 if (s[0] == '\\') {
adamc@742	3025 if (s[1] == '\\') {
adamc@742	3026 *r++ = '\\';
adamc@742	3027 s += 2;
adamc@1153	3028 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adamc@742	3029 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	3030 s += 4;
adamc@742	3031 }
adamc@742	3032 else {
adamc@742	3033 *r++ = '\\';
adamc@742	3034 ++s;
adamc@742	3035 }
adamc@742	3036 } else {
adamc@742	3037 *r++ = s[0];
adamc@742	3038 ++s;
adamc@742	3039 }
adamc@742	3040 }
adamc@742	3041
adamc@742	3042 b.size = r - ctx->heap.front;
adamc@742	3043 ctx->heap.front = r;
adamc@742	3044 return b;
adamc@742	3045 }
adamc@742	3046
adam@1402	3047 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3048
adamc@463	3049 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3050 int len = strlen(c);
adamc@854	3051 char *p = ctx->outHeaders.start;
adamc@474	3052
adamc@1134	3053 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3054 char *p2;
adamc@474	3055 p += 13;
adamc@474	3056 p2 = strchr(p, '=');
adamc@474	3057
adamc@474	3058 if (p2) {
adamc@474	3059 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3060
adamc@474	3061 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3062 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3063 return NULL;
adamc@1052	3064 else {
adamc@1052	3065 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3066 memcpy(ret, p2+1, sz);
adamc@1052	3067 ret[sz] = 0;
adamc@1052	3068 return ret;
adamc@1052	3069 }
adamc@474	3070 }
adamc@474	3071 }
adamc@474	3072 }
adamc@463	3073
adamc@1134	3074 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3075 char *p2;
adamc@1051	3076
adamc@854	3077 while (1) {
adamc@1051	3078 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3079 if ((p2 = strchr(p, ';'))) {
adamc@1051	3080 size_t n = p2 - (p + len);
adamc@1051	3081 char *r = uw_malloc(ctx, n);
adamc@1051	3082 memcpy(r, p + 1 + len, n-1);
adamc@1051	3083 r[n-1] = 0;
adamc@1051	3084 return r;
adamc@1051	3085 } else
adamc@1051	3086 return p + 1 + len;
adamc@1134	3087 } else if ((p = strchr(p, ';')))
adamc@854	3088 p += 2;
adamc@463	3089 else
adamc@463	3090 return NULL;
adamc@463	3091 }
adamc@463	3092 }
adamc@792	3093
adamc@792	3094 return NULL;
adamc@457	3095 }
adamc@462	3096
adam@1877	3097 static void set_cookie(uw_context ctx) {
adam@1877	3098 if (ctx->usedSig)
adam@1877	3099 ctx->needsResig = 1;
adam@1877	3100 }
adam@1877	3101
adamc@1050	3102 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	3103 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3104 uw_write_header(ctx, c);
adamc@462	3105 uw_write_header(ctx, "=");
adamc@462	3106 uw_write_header(ctx, v);
adamc@466	3107 uw_write_header(ctx, "; path=");
adamc@466	3108 uw_write_header(ctx, prefix);
adamc@1050	3109 if (expires) {
adamc@1050	3110 char formatted[30];
adam@1392	3111 struct tm tm = {};
adam@1392	3112 tm.tm_isdst = -1;
adamc@1050	3113
adam@1365	3114 gmtime_r(&expires->seconds, &tm);
adamc@1050	3115
adamc@1050	3116 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3117
adamc@1050	3118 uw_write_header(ctx, "; expires=");
adamc@1050	3119 uw_write_header(ctx, formatted);
adamc@1050	3120 }
adamc@1050	3121 if (secure)
adamc@1050	3122 uw_write_header(ctx, "; secure");
adamc@462	3123 uw_write_header(ctx, "\r\n");
adam@1877	3124 set_cookie(ctx);
adamc@462	3125
adamc@462	3126 return uw_unit_v;
adamc@462	3127 }
adamc@667	3128
adamc@1050	3129 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3130 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3131 uw_write_header(ctx, c);
adamc@1050	3132 uw_write_header(ctx, "=; path=");
adamc@1050	3133 uw_write_header(ctx, prefix);
adamc@1052	3134 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3135 set_cookie(ctx);
adamc@1050	3136
adamc@1050	3137 return uw_unit_v;
adamc@1050	3138 }
adamc@1050	3139
adamc@1113	3140 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3141
adamc@682	3142 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3143 unsigned i;
adamc@682	3144 delta *d;
adamc@671	3145
adamc@682	3146 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3147 if (ctx->deltas[i].client == client)
adamc@682	3148 return &ctx->deltas[i];
adamc@671	3149
adamc@682	3150 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3151 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3152 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3153
adamc@682	3154 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3155 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3156 }
adamc@671	3157
adamc@682	3158 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3159 d->client = client;
adam@1369	3160 uw_buffer_reset(&d->msgs);
adamc@682	3161 return d;
adamc@671	3162 }
adamc@671	3163
adamc@668	3164 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3165 if (ctx->client == NULL)
adamc@682	3166 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3167
adamc@682	3168 return new_channel(ctx->client);
adamc@668	3169 }
adamc@668	3170
adamc@668	3171 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3172 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3173 size_t len;
adamc@682	3174 int preLen;
adamc@682	3175 char pre[INTS_MAX + 2];
adamc@668	3176
adamc@682	3177 len = strlen(msg);
adamc@682	3178
adamc@682	3179 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3180
adam@1369	3181 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3182 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3183 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3184
adamc@671	3185 return uw_unit_v;
adamc@668	3186 }
adamc@671	3187
adam@1327	3188 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3189 int i;
adamc@1131	3190 cleanup *cl;
adamc@1131	3191
adamc@1131	3192 if (ctx->client)
adamc@1131	3193 release_client(ctx->client);
adamc@1131	3194
adamc@1131	3195 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3196 cl->func(cl->arg);
adamc@1131	3197
adamc@1131	3198 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3199
adamc@1131	3200 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3201 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3202 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3203
adamc@1131	3204 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3205 if (ctx->transactionals[i].free)
adam@1327	3206 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3207
adamc@1144	3208 return ctx->app ? ctx->app->db_rollback(ctx) : 0;
adamc@1131	3209 }
adamc@1131	3210
adam@1728	3211 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	3212
adam@1877	3213 extern int uw_hash_blocksize;
adam@1877	3214
adam@1877	3215 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3216
adam@1877	3217 static char find_sig(char haystack) {
adam@1877	3218 int i;
adam@1877	3219 char *s = strstr(haystack, sig_intro);
adam@1877	3220
adam@1877	3221 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3222 return NULL;
adam@1877	3223
adam@1877	3224 s += sizeof sig_intro - 1;
adam@1877	3225
adam@1877	3226 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3227 if (!isxdigit((int)s[i]))
adam@1877	3228 return NULL;
adam@1877	3229
adam@1877	3230 if (s[i] != '"')
adam@1877	3231 return NULL;
adam@1877	3232
adam@1877	3233 return s;
adam@1877	3234 }
adam@1877	3235
adamc@671	3236 void uw_commit(uw_context ctx) {
adamc@1104	3237 int i;
adam@1877	3238 char *sig;
adamc@1104	3239
adamc@1131	3240 if (uw_has_error(ctx)) {
adam@1327	3241 uw_rollback(ctx, 0);
adamc@1131	3242 return;
adamc@1131	3243 }
adamc@1131	3244
adamc@1104	3245 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3246 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3247 if (ctx->transactionals[i].commit) {
adamc@1083	3248 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3249 if (uw_has_error(ctx)) {
adam@1327	3250 uw_rollback(ctx, 0);
adamc@1131	3251 return;
adamc@1131	3252 }
adamc@1131	3253 }
adamc@771	3254
adamc@1104	3255 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3256 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3257 if (ctx->transactionals[i].commit) {
adamc@1083	3258 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3259 if (uw_has_error(ctx)) {
adam@1327	3260 uw_rollback(ctx, 0);
adamc@1131	3261 return;
adamc@1131	3262 }
adamc@1131	3263 }
adamc@1131	3264
adamc@1131	3265 if (ctx->app->db_commit(ctx)) {
adamc@1131	3266 uw_set_error_message(ctx, "Error running SQL COMMIT");
adamc@1131	3267 return;
adamc@1131	3268 }
adamc@682	3269
adamc@682	3270 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3271 delta *d = &ctx->deltas[i];
adamc@682	3272 client *c = find_client(d->client);
adamc@682	3273
adam@1551	3274 assert (c != NULL);
adam@1551	3275 assert(c->mode == USED);
adamc@682	3276
adam@1447	3277 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3278 }
adamc@682	3279
adamc@682	3280 if (ctx->client)
adamc@685	3281 release_client(ctx->client);
adamc@771	3282
adamc@1104	3283 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3284 if (ctx->transactionals[i].free)
adam@1327	3285 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3286
vshabanoff@1726	3287 uw_check(ctx, 1);
vshabanoff@1726	3288 *ctx->page.front = 0;
adam@1413	3289
adam@1728	3290 if (!ctx->returning_indirectly && !strncmp(ctx->page.start, begin_xhtml, sizeof begin_xhtml - 1)) {
adam@1728	3291 char *s;
adam@1728	3292
adam@1728	3293 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1728	3294 s = ctx->page.start + sizeof begin_xhtml - 1;
adam@1728	3295 s = strchr(s, '<');
adam@1728	3296 if (s == NULL) {
adam@1728	3297 // Weird. Document has no tags!
adam@1728	3298
adam@1728	3299 uw_write(ctx, "<head></head><body></body>");
adam@1728	3300 uw_check(ctx, 1);
adam@1728	3301 *ctx->page.front = 0;
adam@1728	3302 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3303 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3304
adam@1729	3305 // Any freeform JavaScript to include?
adam@1729	3306 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3307 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3308 size_t lenP = lenH + 40 + len;
adam@1729	3309 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3310
adam@1729	3311 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3312 start += ctx->page.start - oldPage;
adam@1729	3313 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3314 ctx->page.front += lenP;
adam@1729	3315 memcpy(start, ctx->script_header, lenH);
adam@1729	3316 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3317 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3318 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3319 } else {
adam@1729	3320 size_t lenH = strlen(ctx->script_header);
adam@1729	3321 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3322
adam@1729	3323 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3324 start += ctx->page.start - oldPage;
adam@1729	3325 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3326 ctx->page.front += lenH;
adam@1729	3327 memcpy(start, ctx->script_header, lenH);
adam@1729	3328 }
adam@1728	3329 } else {
adam@1728	3330 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3331
adam@1729	3332 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3333 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3334 size_t lenP = lenH + 53 + len;
adam@1729	3335 char start = s, oldPage = ctx->page.start;
adam@1729	3336
adam@1729	3337 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3338 start += ctx->page.start - oldPage;
adam@1729	3339 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3340 ctx->page.front += lenP;
adam@1729	3341 memcpy(start, "<head>", 6);
adam@1729	3342 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3343 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3344 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3345 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3346 } else {
adam@1729	3347 size_t lenH = strlen(ctx->script_header);
adam@1729	3348 size_t lenP = lenH + 13;
adam@1729	3349 char start = s, oldPage = ctx->page.start;
adam@1729	3350
adam@1729	3351 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3352 start += ctx->page.start - oldPage;
adam@1729	3353 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3354 ctx->page.front += lenP;
adam@1729	3355 memcpy(start, "<head>", 6);
adam@1729	3356 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3357 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3358 }
adamc@916	3359 }
adamc@916	3360 }
adam@1877	3361
adam@1877	3362 if (ctx->needsResig) {
adam@1877	3363 sig = find_sig(ctx->page.start);
adam@1877	3364 if (sig) {
adam@1877	3365 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3366
adam@1877	3367 do {
adam@1877	3368 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3369 sig = find_sig(sig);
adam@1877	3370 } while (sig);
adam@1877	3371 }
adam@1877	3372 }
adamc@671	3373 }
adamc@671	3374
adamc@683	3375
adamc@1113	3376 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3377
adamc@771	3378 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3379 uw_callback_with_retry free) {
adamc@771	3380 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3381 if (ctx->used_transactionals+1 > uw_transactionals_max)
adamc@1113	3382 uw_error(ctx, FATAL, "Exceeded limit on number of transactionals");
adamc@1084	3383 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3384 ++ctx->n_transactionals;
adamc@771	3385 }
adamc@771	3386
adamc@771	3387 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3388 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3389 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3390 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	3391 }
adamc@771	3392
adamc@683	3393
adamc@683	3394 // "Garbage collection"
adamc@683	3395
adamc@1121	3396 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3397 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3398
adamc@1121	3399 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3400 int r = setjmp(ctx->jmp_buf);
adamc@683	3401
adamc@1121	3402 if (r == 0)
adamc@1121	3403 uw_do_expunge(ctx, cli, data);
adamc@1121	3404 else
adamc@1121	3405 ctx->app->db_rollback(ctx);
adamc@1121	3406
adamc@1121	3407 uw_post_expunge(ctx, data);
adamc@683	3408
adamc@683	3409 return r;
adamc@683	3410 }
adamc@683	3411
adamc@683	3412 void uw_prune_clients(uw_context ctx) {
adamc@683	3413 client c, next, *prev = NULL;
adamc@683	3414 time_t cutoff;
adamc@683	3415
adamc@1094	3416 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3417
adamc@683	3418 pthread_mutex_lock(&clients_mutex);
adam@1707	3419 pruning_thread = pthread_self();
adam@1707	3420 pruning_thread_initialized = 1;
adamc@683	3421
adamc@683	3422 for (c = clients_used; c; c = next) {
adamc@683	3423 next = c->next;
adamc@683	3424 pthread_mutex_lock(&c->lock);
adamc@685	3425 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3426 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3427 if (prev)
adamc@683	3428 prev->next = next;
adamc@683	3429 else
adamc@683	3430 clients_used = next;
adamc@684	3431 uw_reset(ctx);
adamc@683	3432 while (fk == UNLIMITED_RETRY) {
adamc@1121	3433 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3434 if (fk == UNLIMITED_RETRY)
adamc@684	3435 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3436 }
adamc@684	3437 if (fk == SUCCESS)
adamc@684	3438 free_client(c);
adamc@1121	3439 else
adamc@856	3440 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3441 }
adamc@683	3442 else
adamc@683	3443 prev = c;
adamc@683	3444 pthread_mutex_unlock(&c->lock);
adamc@683	3445 }
adamc@683	3446
adamc@683	3447 pthread_mutex_unlock(&clients_mutex);
adamc@683	3448 }
adamc@687	3449
adamc@687	3450 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3451 int r = setjmp(ctx->jmp_buf);
adamc@687	3452
adamc@687	3453 if (r == 0) {
adamc@1094	3454 if (ctx->app->db_begin(ctx))
adamc@687	3455 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@1094	3456 ctx->app->initializer(ctx);
adamc@1094	3457 if (ctx->app->db_commit(ctx))
adamc@687	3458 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3459 }
adamc@687	3460
adamc@687	3461 return r;
adamc@687	3462 }
adamc@717	3463
adamc@1065	3464 static int url_bad(uw_Basis_string s) {
adamc@1065	3465 for (; *s; ++s)
adamc@1153	3466 if (!isgraph((int)*s))
adamc@1065	3467 return 1;
adamc@1065	3468
adamc@1065	3469 return 0;
adamc@1065	3470 }
adamc@1065	3471
adamc@717	3472 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3473 if (url_bad(s))
adamc@1065	3474 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3475 if (ctx->app->check_url(s))
adamc@770	3476 return s;
adamc@770	3477 else
adamc@770	3478 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3479 }
adamc@734	3480
adamc@770	3481 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3482 if (url_bad(s))
adamc@1065	3483 return NULL;
adamc@1094	3484 if (ctx->app->check_url(s))
adamc@770	3485 return s;
adamc@770	3486 else
adamc@770	3487 return NULL;
adamc@770	3488 }
adamc@770	3489
adam@1465	3490 static int mime_format(const char *s) {
adamc@770	3491 for (; *s; ++s)
adamc@1153	3492 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.')
adamc@770	3493 return 0;
adamc@770	3494
adamc@770	3495 return 1;
adamc@770	3496 }
adamc@770	3497
adamc@741	3498 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3499 if (!mime_format(s))
adamc@770	3500 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3501
adamc@1094	3502 if (ctx->app->check_mime(s))
adamc@770	3503 return s;
adamc@770	3504 else
adamc@770	3505 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3506 }
adamc@770	3507
adamc@770	3508 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3509 if (!mime_format(s))
adamc@770	3510 return NULL;
adamc@770	3511
adamc@1094	3512 if (ctx->app->check_mime(s))
adamc@770	3513 return s;
adamc@770	3514 else
adamc@770	3515 return NULL;
adamc@741	3516 }
adamc@741	3517
adam@1465	3518 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3519 if (!mime_format(s))
adam@1465	3520 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3521
adam@1465	3522 if (ctx->app->check_requestHeader(s))
adam@1465	3523 return s;
adam@1465	3524 else
adam@1465	3525 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3526 }
adam@1465	3527
adam@1465	3528 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3529 if (!mime_format(s))
adam@1465	3530 return NULL;
adam@1465	3531
adam@1465	3532 if (ctx->app->check_requestHeader(s))
adam@1465	3533 return s;
adam@1465	3534 else
adam@1465	3535 return NULL;
adam@1465	3536 }
adam@1465	3537
adam@1465	3538 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3539 if (!mime_format(s))
adam@1465	3540 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3541
adam@1465	3542 if (ctx->app->check_responseHeader(s))
adam@1465	3543 return s;
adam@1465	3544 else
adam@1465	3545 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3546 }
adam@1465	3547
adam@1799	3548 static int envVar_format(const char *s) {
adam@1799	3549 for (; *s; ++s)
adam@1799	3550 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3551 return 0;
adam@1799	3552
adam@1799	3553 return 1;
adam@1799	3554 }
adam@1799	3555
adam@1465	3556 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3557 if (!envVar_format(s))
adam@1465	3558 return NULL;
adam@1465	3559
adam@1465	3560 if (ctx->app->check_responseHeader(s))
adam@1465	3561 return s;
adam@1465	3562 else
adam@1465	3563 return NULL;
adam@1465	3564 }
adam@1465	3565
adam@1799	3566 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3567 if (!envVar_format(s))
adam@1799	3568 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3569
adam@1799	3570 if (ctx->app->check_envVar(s))
adam@1799	3571 return s;
adam@1799	3572 else
adam@1799	3573 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3574 }
adam@1799	3575
adam@1799	3576 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3577 if (!mime_format(s))
adam@1799	3578 return NULL;
adam@1799	3579
adam@1799	3580 if (ctx->app->check_envVar(s))
adam@1799	3581 return s;
adam@1799	3582 else
adam@1799	3583 return NULL;
adam@1799	3584 }
adam@1799	3585
adam@1465	3586 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3587 return uw_Basis_requestHeader(ctx, name);
adam@1465	3588 }
adam@1465	3589
adam@1465	3590 static int mime_value_format(const char *s) {
adam@1465	3591 for (; *s; ++s)
adam@1465	3592 if (s == '\r' \|\| s == '\n')
adam@1465	3593 return 0;
adam@1465	3594
adam@1465	3595 return 1;
adam@1465	3596 }
adam@1465	3597
adam@1465	3598 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3599 if (!mime_value_format(value))
adam@1465	3600 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3601
adam@1465	3602 uw_write_header(ctx, name);
adam@1465	3603 uw_write_header(ctx, ": ");
adam@1465	3604 uw_write_header(ctx, value);
adam@1465	3605 uw_write_header(ctx, "\r\n");
adam@1465	3606
adam@1465	3607 return uw_unit_v;
adam@1465	3608 }
adam@1465	3609
adam@1799	3610 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1799	3611 return ctx->get_env(ctx->get_env_data, name);
adam@1799	3612 }
adam@1799	3613
adamc@734	3614 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3615 return s ? s : "";
adamc@734	3616 }
adamc@734	3617
adamc@734	3618 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3619 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3620 int i;
adamc@734	3621
adamc@734	3622 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3623 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3624
adamc@734	3625 return r;
adamc@734	3626 }
adamc@734	3627
adam@1512	3628 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3629 * optimizations that would enable timing attacks. See:
adam@1512	3630 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3631 */
adam@1512	3632 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3633 int i, x = 0, len1 = strlen(s1);
adam@1512	3634
adam@1512	3635 if (len1 != strlen(s2)) return 0;
adam@1512	3636
adam@1512	3637 for (i = 0; i < len1; ++i) {
adam@1512	3638 __asm__ __volatile__ ("");
adam@1512	3639 x \|= s1[i] ^ s2[i];
adam@1512	3640 }
adam@1512	3641
adam@1512	3642 return x == 0;
adam@1512	3643 }
adam@1512	3644
adamc@734	3645 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3646 ctx->usedSig = 1;
adamc@1094	3647 return ctx->app->cookie_sig(ctx);
adamc@734	3648 }
adamc@737	3649
adamc@737	3650 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3651 return f.name;
adamc@737	3652 }
adamc@737	3653
adamc@740	3654 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3655 return f.type;
adamc@740	3656 }
adamc@740	3657
adamc@745	3658 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3659 return b.size;
adamc@745	3660 }
adamc@745	3661
adamc@1119	3662 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3663 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3664
adamc@1119	3665 return b;
adamc@1119	3666 }
adamc@1119	3667
adamc@737	3668 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3669 return f.data;
adamc@737	3670 }
adamc@741	3671
adam@1347	3672 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3673 return pb.type;
adam@1347	3674 }
adam@1347	3675
adam@1347	3676 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3677 return pb.data;
adam@1347	3678 }
adam@1347	3679
adam@1471	3680 static char *old_headers(uw_context ctx) {
adam@1471	3681 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3682 return NULL;
adam@1471	3683 else {
adam@1471	3684 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3685
adam@1471	3686 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3687 return NULL;
adam@1471	3688 else {
adam@1471	3689 s = strchr(s+15, '\n');
adam@1471	3690 if (s == NULL)
adam@1471	3691 return NULL;
adam@1471	3692 else
adam@1471	3693 return uw_strdup(ctx, s+1);
adam@1471	3694 }
adam@1471	3695 }
adam@1471	3696 }
adam@1471	3697
adamc@741	3698 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3699 cleanup *cl;
adamc@741	3700 int len;
adam@1471	3701 char *oldh;
adamc@741	3702
adam@1451	3703 if (!ctx->allowed_to_return_indirectly)
adam@1451	3704 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3705
adamc@1065	3706 ctx->returning_indirectly = 1;
adam@1471	3707 oldh = old_headers(ctx);
adam@1369	3708 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3709 uw_buffer_reset(&ctx->page);
adamc@741	3710
adamc@856	3711 uw_write_header(ctx, on_success);
adamc@856	3712 uw_write_header(ctx, "Content-Type: ");
adamc@741	3713 uw_write_header(ctx, mimeType);
adamc@741	3714 uw_write_header(ctx, "\r\nContent-Length: ");
adam@1369	3715 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3716 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3717 ctx->outHeaders.front += len;
adamc@1066	3718 uw_write_header(ctx, "\r\n");
adam@1471	3719 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3720
adam@1369	3721 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3722
adamc@741	3723 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3724 cl->func(cl->arg);
adamc@741	3725
adamc@741	3726 ctx->cleanup_front = ctx->cleanup;
adamc@741	3727
adamc@1065	3728 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3729 }
adamc@1065	3730
adamc@1065	3731 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3732 cleanup *cl;
adamc@1066	3733 char *s;
adam@1471	3734 char *oldh;
adamc@1065	3735
adam@1451	3736 if (!ctx->allowed_to_return_indirectly)
adam@1451	3737 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3738
adamc@1065	3739 ctx->returning_indirectly = 1;
adam@1471	3740 oldh = old_headers(ctx);
adam@1369	3741 uw_buffer_reset(&ctx->page);
adam@1369	3742 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3743 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3744 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3745 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3746
adam@1409	3747 if (on_success[0])
adam@1409	3748 uw_write_header(ctx, on_redirect);
adam@1409	3749 else
adam@1409	3750 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3751 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3752 if (s) {
adamc@1066	3753 char *s2;
adam@1409	3754 if (s[0] == '\n') ++s;
adam@1409	3755 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3756 *s2 = 0;
adamc@1066	3757 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3758 uw_write_header(ctx, s);
adamc@1066	3759 uw_write_header(ctx, "\n");
adamc@1066	3760 }
adamc@1066	3761 }
adamc@1066	3762 }
adamc@1066	3763
adamc@1065	3764 uw_write_header(ctx, "Location: ");
adamc@1065	3765 uw_write_header(ctx, url);
adamc@1065	3766 uw_write_header(ctx, "\r\n\r\n");
adam@1471	3767 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	3768
adamc@1065	3769 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3770 cl->func(cl->arg);
adamc@1065	3771
adamc@1065	3772 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3773
adamc@1065	3774 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3775 }
adamc@874	3776
adamc@874	3777 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	3778 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	3779
adamc@874	3780 for (; *s; ++s) {
adamc@874	3781 if (s[0] == '\'') {
adamc@874	3782 *r++ = '\'';
adamc@874	3783 for (++s; *s; ++s) {
adamc@874	3784 if (s[0] == '\'') {
adamc@874	3785 *r++ = '\'';
adamc@874	3786 break;
adamc@874	3787 } else if (s[0] == '\\') {
adam@1467	3788 *r++ = '\\';
adam@1467	3789 *r++ = s[1];
adam@1467	3790 ++s;
adamc@874	3791 } else
adamc@874	3792 *r++ = s[0];
adamc@874	3793 }
adamc@874	3794 if (*s == 0) break;
adam@1467	3795 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	3796 s += 3;
adamc@874	3797 else
adamc@874	3798 *r++ = s[0];
adamc@874	3799 }
adamc@874	3800
adam@1467	3801 *r = 0;
adam@1467	3802 return ret;
adamc@874	3803 }
adamc@874	3804
adamc@922	3805 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3806 va_list ap;
adamc@922	3807 size_t len = 1;
adamc@922	3808 char s, r, *s2;
adamc@922	3809
adamc@922	3810 va_start(ap, ctx);
adamc@922	3811 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3812 len += strlen(s);
adamc@922	3813 va_end(ap);
adamc@922	3814
adamc@922	3815 r = uw_malloc(ctx, len);
adamc@922	3816 va_start(ap, ctx);
adamc@922	3817 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3818 while (*s)
adamc@922	3819 s2++ = s++;
adamc@922	3820 va_end(ap);
adamc@922	3821 *s2 = 0;
adamc@922	3822
adamc@922	3823 return r;
adamc@922	3824 }
adamc@1006	3825
adam@1365	3826 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	3827
adamc@1006	3828 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	3829 uw_Basis_time r = { time(NULL) };
adam@1365	3830 return r;
adamc@1006	3831 }
adamc@1061	3832
adam@1369	3833 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	3834 tm.seconds += n;
adam@1365	3835 return tm;
adamc@1138	3836 }
adamc@1138	3837
adam@1514	3838 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	3839 return difftime(tm2.seconds, tm1.seconds);
adam@1514	3840 }
adam@1514	3841
adam@1685	3842 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	3843 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	3844 }
adam@1685	3845
adam@1685	3846 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	3847 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	3848 }
adam@1685	3849
adam@1514	3850 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	3851 return tm.seconds;
adam@1514	3852 }
adam@1514	3853
adamc@1061	3854 void uw_get_global(uw_context ctx, char name) {
adamc@1061	3855 int i;
adamc@1061	3856
adamc@1061	3857 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3858 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	3859 return ctx->globals[i].data;
adamc@1061	3860
adamc@1061	3861 return NULL;
adamc@1061	3862 }
adamc@1061	3863
adamc@1113	3864 size_t uw_globals_max = SIZE_MAX;
adamc@1113	3865
adamc@1061	3866 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	3867 int i;
adamc@1061	3868
adamc@1061	3869 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3870 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	3871 if (ctx->globals[i].free)
adamc@1061	3872 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	3873 ctx->globals[i].data = data;
adamc@1061	3874 ctx->globals[i].free = free;
adamc@1061	3875 return;
adamc@1061	3876 }
adamc@1089	3877
adamc@1113	3878 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	3879 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	3880
adamc@1061	3881 ++ctx->n_globals;
adamc@1061	3882 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	3883 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	3884 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	3885 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	3886 }
adamc@1061	3887
adamc@1061	3888 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	3889 return !!isalnum((int)c);
adamc@1061	3890 }
adamc@1061	3891
adamc@1061	3892 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	3893 return !!isalpha((int)c);
adamc@1061	3894 }
adamc@1061	3895
adamc@1061	3896 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	3897 return !!isblank((int)c);
adamc@1061	3898 }
adamc@1061	3899
adamc@1061	3900 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	3901 return !!iscntrl((int)c);
adamc@1061	3902 }
adamc@1061	3903
adamc@1061	3904 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3905 return !!isdigit((int)c);
adamc@1061	3906 }
adamc@1061	3907
adamc@1061	3908 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	3909 return !!isgraph((int)c);
adamc@1061	3910 }
adamc@1061	3911
adamc@1061	3912 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3913 return !!islower((int)c);
adamc@1061	3914 }
adamc@1061	3915
adamc@1061	3916 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	3917 return !!isprint((int)c);
adamc@1061	3918 }
adamc@1061	3919
adamc@1061	3920 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	3921 return !!ispunct((int)c);
adamc@1061	3922 }
adamc@1061	3923
adamc@1061	3924 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	3925 return !!isspace((int)c);
adamc@1061	3926 }
adamc@1063	3927
adamc@1061	3928 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3929 return !!isupper((int)c);
adamc@1061	3930 }
adamc@1061	3931
adamc@1061	3932 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3933 return !!isxdigit((int)c);
adamc@1061	3934 }
adamc@1061	3935
adamc@1061	3936 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3937 return tolower((int)c);
adamc@1061	3938 }
adamc@1061	3939
adamc@1061	3940 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3941 return toupper((int)c);
adamc@1061	3942 }
adamc@1066	3943
adamc@1128	3944 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	3945 return (unsigned char)c;
adamc@1128	3946 }
adamc@1128	3947
adamc@1128	3948 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	3949 return n;
adamc@1128	3950 }
adamc@1128	3951
adamc@1066	3952 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	3953 return ctx->current_url;
adamc@1066	3954 }
adamc@1066	3955
adamc@1066	3956 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	3957 ctx->current_url = s;
adamc@1066	3958 }
adamc@1114	3959
adamc@1114	3960 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	3961 ctx->deadline = n;
adamc@1114	3962 }
adamc@1114	3963
adamc@1114	3964 void uw_check_deadline(uw_context ctx) {
adamc@1114	3965 if (uw_time > ctx->deadline)
adamc@1114	3966 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	3967 }
adamc@1115	3968
adamc@1115	3969 size_t uw_database_max = SIZE_MAX;
adamc@1120	3970
adam@1389	3971 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@1389	3972 fprintf(stderr, "%s\n", s);
adam@1389	3973 return 0;
adam@1389	3974 }
adam@1389	3975
adamc@1120	3976 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
adam@1334	3977 if (ctx->log_debug)
adam@1334	3978 ctx->log_debug(ctx->logger_data, "%s\n", s);
adam@1334	3979 else
adam@1334	3980 fprintf(stderr, "%s\n", s);
adamc@1120	3981 return uw_unit_v;
adamc@1120	3982 }
adamc@1250	3983
adamc@1250	3984 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@1486	3985 uw_Basis_int ret;
adam@1486	3986 int r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@1486	3987
adam@1486	3988 if (r)
adam@1486	3989 return abs(ret);
adam@1486	3990 else
adam@1486	3991 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	3992 }
adam@1347	3993
adam@1347	3994 void uw_noPostBody(uw_context ctx) {
adam@1347	3995 ctx->hasPostBody = 0;
adam@1347	3996 }
adam@1347	3997
adam@1347	3998 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3999 ctx->hasPostBody = 1;
adam@1347	4000 ctx->postBody = pb;
adam@1347	4001 }
adam@1347	4002
adam@1347	4003 int uw_hasPostBody(uw_context ctx) {
adam@1347	4004 return ctx->hasPostBody;
adam@1347	4005 }
adam@1347	4006
adam@1386	4007 void uw_isPost(uw_context ctx) {
adam@1386	4008 ctx->isPost = 1;
adam@1386	4009 }
adam@1386	4010
adam@1386	4011 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4012 return ctx->isPost;
adam@1386	4013 }
adam@1386	4014
adam@1485	4015 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4016 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4017 }
adam@1485	4018
adam@1370	4019 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4020 ctx->queryString = s;
adam@1370	4021 }
adam@1370	4022
adam@1370	4023 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4024 return ctx->queryString;
adam@1370	4025 }
adam@1370	4026
adam@1347	4027 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4028 if (ctx->hasPostBody)
adam@1347	4029 return ctx->postBody;
adam@1347	4030 else
adam@1347	4031 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4032 }
adam@1349	4033
adam@1349	4034 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4035 int r = setjmp(ctx->jmp_buf);
adam@1349	4036
adam@1349	4037 if (r == 0) {
adam@1418	4038 if (ctx->app->db_begin(ctx))
adam@1418	4039 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1418	4040
adam@1349	4041 callback(ctx);
adam@1349	4042 }
adam@1349	4043
adam@1349	4044 return r;
adam@1349	4045 }
adam@1360	4046
adam@1360	4047 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4048 char buf[14];
adam@1397	4049 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4050 }
adam@1365	4051
adam@1365	4052 uw_Basis_bool uw_Basis_eq_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_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4057 return !!(t1.seconds < t2.seconds \|\| t1.microseconds < t2.microseconds);
adam@1365	4058 }
adam@1365	4059
adam@1365	4060 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4061 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4062 }
adam@1365	4063
adam@1372	4064 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4065 struct tm stm = {};
adam@1375	4066 char *end = strchr(s, 0);
adam@1449	4067 stm.tm_isdst = -1;
adam@1375	4068
adam@1632	4069 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4070 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4071
kkallio@1448	4072 r->seconds = timegm(&stm);
adam@1373	4073 r->microseconds = 0;
adam@1373	4074
adam@1373	4075 return r;
adam@1374	4076 }
adam@1374	4077 else
adam@1373	4078 return NULL;
adam@1372	4079 }
adam@1407	4080
adam@1407	4081 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4082 int r = setjmp(ctx->jmp_buf);
adam@1407	4083
adam@1407	4084 if (ctx->app->on_error) {
adam@1407	4085 if (r == 0) {
adam@1407	4086 if (ctx->app->db_begin(ctx))
adam@1407	4087 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1407	4088
adam@1409	4089 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4090 if (on_success[0])
adam@1409	4091 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4092 else
adam@1409	4093 uw_write_header(ctx, "Status: ");
adam@1409	4094 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1407	4095 uw_write_header(ctx, "Content-type: text/html\r\n\r\n");
adam@1407	4096 uw_write(ctx, begin_xhtml);
adam@1407	4097 ctx->app->on_error(ctx, msg);
adam@1407	4098 uw_write(ctx, "</html>");
adam@1407	4099 }
adam@1407	4100
adam@1407	4101 return r;
adam@1407	4102 } else
adam@1407	4103 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4104 }
adam@1451	4105
adam@1451	4106 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4107 ctx->allowed_to_return_indirectly = 1;
adam@1451	4108 }
adam@1483	4109
adam@1556	4110 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4111 int len;
adam@1703	4112 char *r;
adam@1703	4113
adam@1703	4114 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4115 r = ctx->heap.front;
adam@1703	4116 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4117 ctx->heap.front += len+1;
adam@1703	4118 return r;
adam@1556	4119 }
adam@1571	4120
adam@1571	4121 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4122 return n;
adam@1571	4123 }
adam@1571	4124
adam@1571	4125 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4126 return ceil(n);
adam@1571	4127 }
adam@1571	4128
adam@1571	4129 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4130 return trunc(n);
adam@1571	4131 }
adam@1571	4132
adam@1571	4133 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4134 return round(n);
adam@1571	4135 }
adam@1755	4136
adam@1755	4137 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755	4138 char *p;
adam@1755	4139
adam@1755	4140 for (p = s; *p; ++p) {
adam@1755	4141 char c = *p;
adam@1801	4142 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755	4143 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4144 }
adam@1755	4145
adam@1755	4146 return s;
adam@1755	4147 }
adam@1755	4148
adam@1755	4149 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4150 char *p;
adam@1755	4151
adam@1755	4152 for (p = s; *p; ++p) {
adam@1755	4153 char c = *p;
adam@1801	4154 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4155 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4156 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4157 }
adam@1755	4158
adam@1755	4159 return s;
adam@1755	4160 }
adam@1755	4161
adam@1755	4162 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4163 char *p;
adam@1755	4164
adam@1755	4165 if (!*s)
adam@1755	4166 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4167
adam@1801	4168 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4169 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4170
adam@1755	4171 for (p = s; *p; ++p) {
adam@1755	4172 char c = *p;
adam@1801	4173 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4174 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4175 }
adam@1755	4176
adam@1755	4177 return s;
adam@1755	4178 }
adam@1787	4179
adam@1787	4180 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4181 return f.name;
adam@1787	4182 }
adam@1787	4183
adam@1787	4184 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4185 return f.value;
adam@1787	4186 }
adam@1787	4187
adam@1787	4188 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4189 return f.remaining;
adam@1787	4190 }
adam@1787	4191
adam@1787	4192 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4193 char *unurl;
adam@1787	4194 uw_Basis_postField *f;
adam@1787	4195
adam@1788	4196 if (!ctx->hasPostBody)
adam@1788	4197 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4198
adam@1788	4199 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4200 return NULL;
adam@1787	4201
adam@1787	4202 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4203 unurl = s;
adam@1787	4204 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4205 s = strchr(s, 0);
adam@1788	4206 if (!s)
adam@1788	4207 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4208 ++s;
adam@1788	4209 unurl = s;
adam@1788	4210 f->value = 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 f->remaining = s+1;
adam@1787	4215
adam@1787	4216 return f;
adam@1787	4217 }

Mercurial > urweb

annotate src/c/urweb.c @ 1916:e2345c438f08