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

annotate src/c/urweb.c @ 1931:1a04b1edded2

Fix regression in http.c for long-polling connections; add lazy initialization of database connections, to avoid the overhead in handlers that don't use SQL

author	Adam Chlipala <adam@chlipala.net>
date	Wed, 11 Dec 2013 14:57:54 -0500
parents	2f33d9a51765
children	98895243b5b6

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

Mercurial > urweb

annotate src/c/urweb.c @ 1931:1a04b1edded2