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

annotate src/c/urweb.c @ 1954:1802eb00a0ae

MySQL: catch deadlocks during queries

author	Adam Chlipala <adam@chlipala.net>
date	Sun, 05 Jan 2014 20:20:09 -0500
parents	d7bec4e63415
children	ac1be85e91ad

rev	line source
adamc@1268	1 #include "config.h"
adamc@1268	2
adamc@117	3 #include <stdlib.h>
adamc@102	4 #include <stdio.h>
adamc@117	5 #include <string.h>
adamc@457	6 #include <strings.h>
adamc@106	7 #include <ctype.h>
adamc@167	8 #include <setjmp.h>
adamc@167	9 #include <stdarg.h>
adamc@682	10 #include <assert.h>
adamc@741	11 #include <ctype.h>
adamc@1114	12 #include <limits.h>
adamc@1113	13 #include <stdint.h>
adamc@1094	14 #include <sys/types.h>
adamc@1094	15 #include <sys/socket.h>
adam@1397	16 #include <openssl/des.h>
adam@1486	17 #include <openssl/rand.h>
adam@1374	18 #include <time.h>
adam@1571	19 #include <math.h>
adamc@102	20
adamc@667	21 #include <pthread.h>
adamc@667	22
adamc@102	23 #include "types.h"
adamc@102	24
adam@1431	25 uw_unit uw_unit_v = 0;
adamc@102	26
adamc@667	27
adamc@667	28 // Socket extras
adamc@667	29
adamc@863	30 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667	31 while (len > 0) {
adamc@856	32 ssize_t n = send(sock, buf, len, 0);
adamc@856	33
adamc@856	34 if (n < 0)
adamc@856	35 return n;
adamc@856	36
adamc@856	37 buf += n;
adamc@856	38 len -= n;
adamc@856	39 }
adamc@856	40
adamc@856	41 return 0;
adamc@856	42 }
adamc@856	43
adamc@856	44 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856	45 while (len > 0) {
adamc@856	46 ssize_t n = write(fd, buf, len);
adamc@667	47
adamc@667	48 if (n < 0)
adamc@667	49 return n;
adamc@667	50
adamc@667	51 buf += n;
adamc@667	52 len -= n;
adamc@667	53 }
adamc@667	54
adamc@667	55 return 0;
adamc@667	56 }
adamc@667	57
adamc@667	58
adamc@667	59 // Buffers
adamc@667	60
adam@1369	61 void uw_buffer_init(size_t max, uw_buffer *b, size_t s) {
adamc@1113	62 b->max = max;
adamc@667	63 b->front = b->start = malloc(s);
adamc@667	64 b->back = b->front + s;
adamc@667	65 }
adamc@667	66
adam@1369	67 void uw_buffer_free(uw_buffer *b) {
adamc@667	68 free(b->start);
adamc@667	69 }
adamc@667	70
adam@1369	71 void uw_buffer_reset(uw_buffer *b) {
adamc@667	72 b->front = b->start;
adamc@667	73 }
adamc@667	74
adam@1369	75 int uw_buffer_check(uw_buffer *b, size_t extra) {
adamc@667	76 if (b->back - b->front < extra) {
adamc@667	77 size_t desired = b->front - b->start + extra, next;
adamc@667	78 char *new_heap;
adamc@667	79
adamc@667	80 next = b->back - b->start;
adamc@667	81 if (next == 0)
adamc@667	82 next = 1;
adamc@667	83 for (; next < desired; next *= 2);
adamc@667	84
adamc@1134	85 if (next > b->max) {
adamc@1113	86 if (desired <= b->max)
adamc@1113	87 next = desired;
adamc@1113	88 else
adamc@1113	89 return 1;
adamc@1134	90 }
adamc@1113	91
adamc@667	92 new_heap = realloc(b->start, next);
adamc@667	93 b->front = new_heap + (b->front - b->start);
adamc@667	94 b->back = new_heap + next;
adamc@667	95 b->start = new_heap;
adamc@667	96 }
adamc@1113	97
adamc@1113	98 return 0;
adamc@1113	99 }
adamc@1113	100
adamc@1113	101 __attribute__((noreturn)) void uw_error(uw_context, failure_kind, const char *, ...);
adamc@1113	102
adam@1369	103 static void ctx_uw_buffer_check(uw_context ctx, const char kind, uw_buffer b, size_t extra) {
adam@1369	104 if (uw_buffer_check(b, extra))
adamc@1113	105 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@667	106 }
adamc@667	107
adam@1369	108 size_t uw_buffer_used(uw_buffer *b) {
adamc@667	109 return b->front - b->start;
adamc@667	110 }
adamc@667	111
adam@1369	112 size_t uw_buffer_avail(uw_buffer *b) {
adamc@667	113 return b->back - b->start;
adamc@667	114 }
adamc@667	115
adam@1369	116 int uw_buffer_append(uw_buffer b, const char s, size_t len) {
adam@1369	117 if (uw_buffer_check(b, len+1))
adamc@1113	118 return 1;
adamc@1113	119
adamc@1113	120 memcpy(b->front, s, len);
adamc@1113	121 b->front += len;
adamc@1113	122 *b->front = 0;
adamc@1113	123
adamc@1113	124 return 0;
adamc@1113	125 }
adamc@1113	126
adam@1369	127 static void ctx_uw_buffer_append(uw_context ctx, const char kind, uw_buffer b, const char *s, size_t len) {
adam@1369	128 ctx_uw_buffer_check(ctx, kind, b, len+1);
adamc@1113	129
adamc@668	130 memcpy(b->front, s, len);
adamc@668	131 b->front += len;
adamc@672	132 *b->front = 0;
adamc@668	133 }
adamc@667	134
adamc@668	135
adamc@672	136 // Persistent state types
adamc@667	137
adamc@667	138 typedef enum { UNUSED, USED } usage;
adamc@667	139
adamc@667	140 typedef struct client {
adamc@682	141 unsigned id;
adamc@667	142 usage mode;
adamc@682	143 int pass;
adamc@682	144 struct client *next;
adamc@689	145 pthread_mutex_t lock, pull_lock;
adam@1369	146 uw_buffer msgs;
adamc@682	147 int sock;
adamc@863	148 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	149 int (*close)(int fd);
adamc@682	150 time_t last_contact;
adamc@682	151 unsigned n_channels;
adamc@685	152 unsigned refcount;
adamc@1121	153 void *data;
adamc@667	154 } client;
adamc@667	155
adamc@672	156
adamc@672	157 // Persistent client state
adamc@672	158
adamc@682	159 static client *clients, clients_free, *clients_used;
adamc@682	160 static unsigned n_clients;
adamc@667	161
adam@1707	162 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@1113	163 size_t uw_messages_max = SIZE_MAX;
adamc@1113	164 size_t uw_clients_max = SIZE_MAX;
adamc@1113	165
adamc@1121	166 void *uw_init_client_data();
adamc@1121	167 void uw_free_client_data(void *);
adamc@1121	168 void uw_copy_client_data(void dst, void src);
adamc@1121	169
adamc@682	170 static client *new_client() {
adamc@667	171 client *c;
adamc@667	172
adamc@667	173 pthread_mutex_lock(&clients_mutex);
adamc@667	174
adamc@667	175 if (clients_free) {
adamc@667	176 c = clients_free;
adamc@682	177 clients_free = clients_free->next;
adamc@667	178 }
adam@1672	179 else if (n_clients >= uw_clients_max) {
adam@1672	180 pthread_mutex_unlock(&clients_mutex);
adamc@1113	181 return NULL;
adam@1672	182 } else {
adamc@667	183 ++n_clients;
adamc@667	184 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	185 c = malloc(sizeof(client));
adamc@667	186 c->id = n_clients-1;
adamc@682	187 pthread_mutex_init(&c->lock, NULL);
adamc@689	188 pthread_mutex_init(&c->pull_lock, NULL);
adam@1369	189 uw_buffer_init(uw_messages_max, &c->msgs, 0);
adamc@667	190 clients[n_clients-1] = c;
adamc@667	191 }
adamc@667	192
adamc@682	193 pthread_mutex_lock(&c->lock);
adamc@667	194 c->mode = USED;
adamc@682	195 c->pass = rand();
adamc@682	196 c->sock = -1;
adamc@682	197 c->last_contact = time(NULL);
adam@1369	198 uw_buffer_reset(&c->msgs);
adamc@682	199 c->n_channels = 0;
adamc@685	200 c->refcount = 0;
adamc@1121	201 c->data = uw_init_client_data();
adamc@682	202 pthread_mutex_unlock(&c->lock);
adamc@682	203
adamc@682	204 c->next = clients_used;
adamc@682	205 clients_used = c;
adamc@667	206
adamc@667	207 pthread_mutex_unlock(&clients_mutex);
adamc@667	208
adamc@667	209 return c;
adamc@667	210 }
adamc@667	211
adamc@685	212 static void use_client(client *c) {
adamc@685	213 pthread_mutex_lock(&c->lock);
adamc@685	214 ++c->refcount;
adamc@685	215 pthread_mutex_unlock(&c->lock);
adamc@689	216 pthread_mutex_lock(&c->pull_lock);
adamc@685	217 }
adamc@685	218
adamc@685	219 static void release_client(client *c) {
adamc@689	220 pthread_mutex_unlock(&c->pull_lock);
adamc@685	221 pthread_mutex_lock(&c->lock);
adamc@685	222 --c->refcount;
adamc@685	223 pthread_mutex_unlock(&c->lock);
adamc@685	224 }
adamc@685	225
adamc@856	226 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adam@1707	227 static pthread_t pruning_thread;
adam@1707	228 static int pruning_thread_initialized = 0;
adamc@667	229
adamc@682	230 static client *find_client(unsigned id) {
adamc@667	231 client *c;
adam@1708	232 int i_am_pruner = pruning_thread_initialized && pthread_equal(pruning_thread, pthread_self());
adam@1708	233
adam@1708	234 if (!i_am_pruner) pthread_mutex_lock(&clients_mutex);
adamc@667	235
adamc@667	236 if (id >= n_clients) {
adam@1708	237 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	238 return NULL;
adamc@667	239 }
adamc@667	240
adamc@667	241 c = clients[id];
adamc@667	242
adam@1708	243 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	244 return c;
adamc@668	245 }
adamc@668	246
adamc@856	247 static char *on_success = "HTTP/1.1 200 OK\r\n";
adam@1409	248 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	249
adamc@856	250 void uw_set_on_success(char *s) {
adamc@856	251 on_success = s;
adamc@856	252 }
adamc@856	253
adam@1552	254 static void chastise(int (send)(int sockfd, const void buf, ssize_t len), int sock) {
adam@1552	255 send(sock, on_success, strlen(on_success));
adam@1552	256 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1552	257 send(sock, "R", 1);
adam@1552	258 close(sock);
adam@1552	259 }
adam@1552	260
adamc@863	261 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	262 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	263 int (*close)(int fd),
adamc@864	264 void *logger_data, uw_logger log_error) {
adamc@682	265 client *c = find_client(id);
adamc@668	266
adamc@668	267 if (c == NULL) {
adam@1552	268 chastise(send, sock);
adamc@864	269 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	270 return;
adamc@667	271 }
adamc@667	272
adamc@682	273 pthread_mutex_lock(&c->lock);
adamc@671	274
adamc@682	275 if (c->mode != USED) {
adamc@682	276 pthread_mutex_unlock(&c->lock);
adam@1552	277 chastise(send, sock);
adamc@864	278 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	279 return;
adamc@667	280 }
adamc@667	281
adamc@682	282 if (pass != c->pass) {
adamc@682	283 pthread_mutex_unlock(&c->lock);
adam@1552	284 chastise(send, sock);
adamc@864	285 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	286 return;
adamc@667	287 }
adamc@667	288
adamc@682	289 if (c->sock != -1) {
adamc@863	290 c->close(c->sock);
adamc@682	291 c->sock = -1;
adamc@682	292 }
adamc@667	293
adamc@682	294 c->last_contact = time(NULL);
adamc@682	295
adam@1369	296 if (uw_buffer_used(&c->msgs) > 0) {
adamc@863	297 send(sock, on_success, strlen(on_success));
adamc@863	298 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1369	299 send(sock, c->msgs.start, uw_buffer_used(&c->msgs));
adam@1369	300 uw_buffer_reset(&c->msgs);
adamc@667	301 close(sock);
adamc@667	302 }
adamc@863	303 else {
adamc@682	304 c->sock = sock;
adamc@863	305 c->send = send;
adamc@863	306 c->close = close;
adamc@863	307 }
adamc@667	308
adamc@682	309 pthread_mutex_unlock(&c->lock);
adamc@667	310 }
adamc@667	311
adamc@682	312 static void free_client(client *c) {
adamc@682	313 c->mode = UNUSED;
adamc@682	314 c->pass = -1;
adamc@667	315
adamc@682	316 c->next = clients_free;
adamc@682	317 clients_free = c;
adamc@667	318 }
adamc@667	319
adamc@682	320 static uw_Basis_channel new_channel(client *c) {
adamc@682	321 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	322 return ch;
adamc@668	323 }
adamc@668	324
adam@1447	325 static void client_send(client c, uw_buffer msg, const char *script, int script_len) {
adamc@685	326 pthread_mutex_lock(&c->lock);
adamc@671	327
adamc@682	328 if (c->sock != -1) {
adamc@863	329 c->send(c->sock, on_success, strlen(on_success));
adamc@863	330 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1447	331 if (script_len > 0) {
adam@1447	332 c->send(c->sock, "E\n", 2);
adam@1447	333 c->send(c->sock, script, script_len);
adam@1447	334 c->send(c->sock, "\n", 1);
adam@1447	335 }
adam@1369	336 c->send(c->sock, msg->start, uw_buffer_used(msg));
adamc@863	337 c->close(c->sock);
adamc@682	338 c->sock = -1;
adam@1665	339 } else if (uw_buffer_append(&c->msgs, msg->start, uw_buffer_used(msg)))
adamc@1113	340 fprintf(stderr, "Client message buffer size exceeded");
adamc@671	341
adamc@685	342 pthread_mutex_unlock(&c->lock);
adamc@668	343 }
adamc@668	344
adamc@668	345
adamc@668	346 // Global entry points
adamc@668	347
adamc@1164	348 extern void uw_global_custom();
adamc@1104	349 extern void uw_init_crypto();
adamc@1104	350
adamc@668	351 void uw_global_init() {
adamc@668	352 srand(time(NULL) ^ getpid());
adamc@668	353
adamc@668	354 clients = malloc(0);
adamc@1104	355
adamc@1164	356 uw_global_custom();
adamc@1104	357 uw_init_crypto();
adamc@1094	358 }
adamc@1094	359
adamc@1094	360 void uw_app_init(uw_app *app) {
adamc@1094	361 app->client_init();
adamc@668	362 }
adamc@668	363
adam@1332	364 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114	365
adamc@668	366
adamc@667	367 // Single-request state
adamc@667	368
adamc@323	369 typedef struct regions {
adamc@323	370 struct regions *next;
adamc@323	371 } regions;
adamc@323	372
adamc@425	373 typedef struct {
adamc@425	374 void (func)(void);
adamc@425	375 void *arg;
adamc@425	376 } cleanup;
adamc@425	377
adamc@671	378 typedef struct {
adamc@682	379 unsigned client;
adam@1369	380 uw_buffer msgs;
adamc@682	381 } delta;
adamc@671	382
adamc@737	383 typedef enum {
adamc@759	384 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	385 } input_kind;
adamc@737	386
adamc@756	387 typedef struct input {
adamc@737	388 input_kind kind;
adamc@737	389 union {
adamc@737	390 char *normal;
adamc@739	391 uw_Basis_file file;
adamc@756	392 struct {
adamc@759	393 struct input fields, parent;
adamc@756	394 } subform;
adamc@759	395 struct {
adamc@759	396 struct input entries, parent;
adamc@759	397 } subforms;
adamc@759	398 struct {
adamc@759	399 struct input fields, next, *parent;
adamc@759	400 } entry;
adamc@737	401 } data;
adamc@737	402 } input;
adamc@737	403
adamc@771	404 typedef struct {
adamc@771	405 void *data;
adam@1327	406 uw_callback commit, rollback;
adam@1327	407 uw_callback_with_retry free;
adamc@771	408 } transactional;
adamc@771	409
adamc@1061	410 typedef struct {
adamc@1061	411 char *name;
adamc@1061	412 void *data;
adamc@1061	413 void (free)(void);
adamc@1061	414 } global;
adamc@1061	415
adamc@311	416 struct uw_context {
adamc@1094	417 uw_app *app;
adam@1446	418 int id;
adamc@1094	419
adamc@854	420 char (get_header)(void , const char );
adamc@854	421 void *get_header_data;
adamc@457	422
adam@1799	423 char (get_env)(void , const char );
adam@1799	424 void *get_env_data;
adam@1799	425
adam@1369	426 uw_buffer outHeaders, page, heap, script;
adam@1451	427 int allowed_to_return_indirectly, returning_indirectly;
adamc@759	428 input inputs, subinputs, *cur_container;
adamc@1094	429 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	430
adam@1446	431 unsigned long long source_count;
adamc@562	432
adamc@272	433 void *db;
adam@1931	434 int transaction_started;
adamc@272	435
adamc@167	436 jmp_buf jmp_buf;
adamc@167	437
adamc@323	438 regions *regions;
adamc@323	439
adamc@425	440 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	441
adamc@1094	442 const char *script_header;
adamc@643	443
adam@1936	444 int needs_push, needs_sig, could_write_db;
adamc@693	445
adamc@682	446 size_t n_deltas, used_deltas;
adamc@682	447 delta *deltas;
adamc@671	448
adamc@682	449 client *client;
adamc@682	450
adamc@771	451 transactional *transactionals;
adamc@771	452 size_t n_transactionals, used_transactionals;
adamc@771	453
adamc@1061	454 global *globals;
adamc@1061	455 size_t n_globals;
adamc@1061	456
adamc@1066	457 char *current_url;
adamc@1066	458
adamc@1114	459 int deadline;
adamc@1114	460
adamc@1121	461 void *client_data;
adamc@1121	462
adam@1334	463 void *logger_data;
adam@1334	464 uw_logger log_debug;
adam@1334	465
adam@1386	466 int isPost, hasPostBody;
adam@1347	467 uw_Basis_postBody postBody;
adam@1370	468 uw_Basis_string queryString;
adam@1347	469
adam@1556	470 unsigned nextId;
adam@1556	471
adam@1782	472 int amInitializing;
adam@1782	473
adamc@167	474 char error_message[ERROR_BUF_LEN];
adam@1877	475
adam@1877	476 int usedSig, needsResig;
adam@1949	477
adam@1949	478 char *output_buffer;
adam@1949	479 size_t output_buffer_size;
adamc@117	480 };
adamc@117	481
adamc@1113	482 size_t uw_headers_max = SIZE_MAX;
adamc@1113	483 size_t uw_page_max = SIZE_MAX;
adamc@1113	484 size_t uw_heap_max = SIZE_MAX;
adamc@1113	485 size_t uw_script_max = SIZE_MAX;
adamc@1113	486
adam@1446	487 uw_context uw_init(int id, void *logger_data, uw_logger log_debug) {
adamc@311	488 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	489
adamc@1094	490 ctx->app = NULL;
adam@1446	491 ctx->id = id;
adamc@1094	492
adamc@854	493 ctx->get_header = NULL;
adamc@854	494 ctx->get_header_data = NULL;
adamc@457	495
adam@1799	496 ctx->get_env = NULL;
adam@1799	497 ctx->get_env_data = NULL;
adam@1799	498
adam@1413	499 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413	500 ctx->outHeaders.start[0] = 0;
adam@1413	501 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413	502 ctx->page.start[0] = 0;
adam@1451	503 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	504 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369	505 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667	506 ctx->script.start[0] = 0;
adamc@136	507
adamc@1094	508 ctx->inputs = malloc(0);
adamc@759	509 ctx->cur_container = NULL;
adamc@756	510 ctx->subinputs = malloc(0);
adamc@1094	511 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	512
adamc@272	513 ctx->db = NULL;
adam@1931	514 ctx->transaction_started = 0;
adamc@272	515
adamc@323	516 ctx->regions = NULL;
adamc@323	517
adamc@425	518 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	519
adamc@643	520 ctx->script_header = "";
adamc@693	521 ctx->needs_push = 0;
adamc@736	522 ctx->needs_sig = 0;
adam@1936	523 ctx->could_write_db = 1;
adamc@1104	524
adamc@565	525 ctx->source_count = 0;
adamc@562	526
adamc@682	527 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	528 ctx->deltas = malloc(0);
adamc@671	529
adamc@700	530 ctx->client = NULL;
adamc@700	531
adamc@700	532 ctx->error_message[0] = 0;
adamc@700	533
adamc@771	534 ctx->transactionals = malloc(0);
adamc@771	535 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	536
adamc@1061	537 ctx->globals = malloc(0);
adamc@1061	538 ctx->n_globals = 0;
adamc@1061	539
adamc@1066	540 ctx->current_url = "";
adamc@1066	541
adamc@1114	542 ctx->deadline = INT_MAX;
adamc@1114	543
adamc@1121	544 ctx->client_data = uw_init_client_data();
adamc@1121	545
adam@1334	546 ctx->logger_data = logger_data;
adam@1334	547 ctx->log_debug = log_debug;
adam@1334	548
adam@1386	549 ctx->isPost = ctx->hasPostBody = 0;
adam@1347	550
adam@1370	551 ctx->queryString = NULL;
adam@1370	552
adam@1556	553 ctx->nextId = 0;
adam@1556	554
adam@1782	555 ctx->amInitializing = 0;
adam@1782	556
adam@1877	557 ctx->usedSig = 0;
adam@1877	558 ctx->needsResig = 0;
adam@1877	559
adam@1949	560 ctx->output_buffer = malloc(1);
adam@1949	561 ctx->output_buffer_size = 1;
adam@1949	562
adamc@117	563 return ctx;
adamc@106	564 }
adamc@106	565
adamc@1113	566 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	567
adamc@1121	568 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	569 return ctx->app;
adamc@1121	570 }
adamc@1121	571
adamc@1113	572 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	573 ctx->app = app;
adamc@1094	574
adamc@1105	575 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	576 if (app->inputs_len > uw_inputs_max)
adamc@1113	577 return 1;
adamc@1113	578
adamc@1094	579 ctx->sz_inputs = app->inputs_len;
adamc@1094	580 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	581 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	582 }
adamc@1134	583
adamc@1134	584 return 0;
adamc@1094	585 }
adamc@1094	586
adamc@1121	587 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	588 uw_copy_client_data(ctx->client_data, data);
adamc@1121	589 }
adamc@1121	590
adamc@311	591 void uw_set_db(uw_context ctx, void *db) {
adamc@272	592 ctx->db = db;
adamc@272	593 }
adamc@272	594
adamc@311	595 void *uw_get_db(uw_context ctx) {
adamc@272	596 return ctx->db;
adamc@272	597 }
adamc@272	598
adamc@311	599 void uw_free(uw_context ctx) {
adamc@671	600 size_t i;
adamc@671	601
adam@1369	602 uw_buffer_free(&ctx->outHeaders);
adam@1369	603 uw_buffer_free(&ctx->script);
adam@1369	604 uw_buffer_free(&ctx->page);
adam@1369	605 uw_buffer_free(&ctx->heap);
adamc@144	606 free(ctx->inputs);
adamc@756	607 free(ctx->subinputs);
adamc@425	608 free(ctx->cleanup);
adamc@771	609 free(ctx->transactionals);
adamc@1121	610 uw_free_client_data(ctx->client_data);
adamc@671	611
adamc@682	612 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	613 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	614 free(ctx->deltas);
adamc@671	615
adamc@1061	616 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	617 if (ctx->globals[i].free)
adamc@1089	618 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	619 free(ctx->globals);
adamc@1061	620
adam@1949	621 free(ctx->output_buffer);
adam@1949	622
adamc@136	623 free(ctx);
adamc@136	624 }
adamc@136	625
adamc@562	626 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	627 uw_buffer_reset(&ctx->outHeaders);
adam@1369	628 uw_buffer_reset(&ctx->script);
adamc@667	629 ctx->script.start[0] = 0;
adam@1369	630 uw_buffer_reset(&ctx->page);
adam@1451	631 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	632 uw_buffer_reset(&ctx->heap);
adamc@323	633 ctx->regions = NULL;
adamc@425	634 ctx->cleanup_front = ctx->cleanup;
adamc@682	635 ctx->used_deltas = 0;
adamc@682	636 ctx->client = NULL;
adamc@759	637 ctx->cur_container = NULL;
adamc@771	638 ctx->used_transactionals = 0;
adamc@1117	639 ctx->script_header = "";
adam@1370	640 ctx->queryString = NULL;
adam@1556	641 ctx->nextId = 0;
adam@1782	642 ctx->amInitializing = 0;
adam@1877	643 ctx->usedSig = 0;
adam@1877	644 ctx->needsResig = 0;
adamc@167	645 }
adamc@167	646
adamc@562	647 void uw_reset_keep_request(uw_context ctx) {
adamc@562	648 uw_reset_keep_error_message(ctx);
adamc@562	649 ctx->error_message[0] = 0;
adamc@167	650 }
adamc@167	651
adamc@311	652 void uw_reset(uw_context ctx) {
adamc@311	653 uw_reset_keep_request(ctx);
adamc@1105	654 if (ctx->app)
adamc@1105	655 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	656 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461	657 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adam@1943	658 ctx->transaction_started = 0;
adamc@144	659 }
adamc@144	660
adamc@311	661 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	662 int r = setjmp(ctx->jmp_buf);
adamc@272	663
adamc@1105	664 if (r == 0 && ctx->app)
adamc@1094	665 ctx->app->db_init(ctx);
adamc@272	666
adamc@272	667 return r;
adamc@272	668 }
adamc@272	669
adamc@1118	670 void uw_close(uw_context ctx) {
adamc@1118	671 ctx->app->db_close(ctx);
adamc@1118	672 }
adamc@1118	673
adam@1446	674 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	675 return ctx->get_header(ctx->get_header_data, h);
adam@1446	676 }
adam@1446	677
adamc@854	678 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	679 ctx->get_header = get_header;
adamc@854	680 ctx->get_header_data = get_header_data;
adamc@742	681 }
adamc@742	682
adam@1799	683 void uw_set_env(uw_context ctx, char (get_env)(void , const char ), void *get_env_data) {
adam@1799	684 ctx->get_env = get_env;
adam@1799	685 ctx->get_env_data = get_env_data;
adam@1799	686 }
adam@1799	687
adamc@801	688 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	689 va_list ap;
adamc@801	690 va_start(ap, fmt);
adamc@801	691
adamc@801	692 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	693 }
adamc@801	694
adamc@1131	695 int uw_has_error(uw_context ctx) {
adamc@1131	696 return ctx->error_message[0] != 0;
adamc@1131	697 }
adamc@1131	698
adamc@311	699 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	700 cleanup *cl;
adamc@425	701
adamc@167	702 va_list ap;
adamc@167	703 va_start(ap, fmt);
adamc@167	704
adamc@167	705 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	706
adamc@425	707 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	708 cl->func(cl->arg);
adamc@425	709
adamc@425	710 ctx->cleanup_front = ctx->cleanup;
adamc@425	711
adamc@190	712 longjmp(ctx->jmp_buf, fk);
adamc@167	713 }
adamc@167	714
adamc@1113	715 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	716
adamc@425	717 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	718 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	719 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	720 if (len == 0)
adamc@425	721 newLen = 1;
adamc@425	722 else
adamc@428	723 newLen = len * 2;
adamc@1113	724
adamc@1134	725 if (newLen > uw_cleanup_max) {
adamc@1113	726 if (len+1 <= uw_cleanup_max)
adamc@1113	727 newLen = uw_cleanup_max;
adamc@1113	728 else
adamc@1113	729 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	730 }
adamc@1113	731
adamc@470	732 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	733 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	734 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	735 }
adamc@425	736
adamc@425	737 ctx->cleanup_front->func = func;
adamc@425	738 ctx->cleanup_front->arg = arg;
adamc@425	739 ++ctx->cleanup_front;
adamc@425	740 }
adamc@425	741
adam@1444	742 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	743
adamc@682	744 void uw_login(uw_context ctx) {
adam@1942	745 char id_s, pass_s;
adam@1942	746
adam@1942	747 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adam@1942	748 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adam@1942	749 unsigned id = atoi(id_s);
adam@1942	750 int pass = atoi(pass_s);
adam@1942	751 client *c = find_client(id);
adam@1942	752
adam@1942	753 if (c == NULL)
adam@1942	754 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", uw_Basis_htmlifyString(ctx, id_s), uw_Basis_htmlifyString(ctx, pass_s));
adam@1942	755 else {
adamc@685	756 use_client(c);
adamc@682	757 ctx->client = c;
adam@1942	758
adam@1942	759 if (c->mode != USED)
adam@1942	760 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adam@1942	761 if (c->pass != pass)
adam@1942	762 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@864	763 }
adam@1942	764 } else if (ctx->needs_push) {
adam@1942	765 client *c = new_client();
adam@1942	766
adam@1942	767 if (c == NULL)
adam@1942	768 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adam@1942	769
adam@1942	770 use_client(c);
adam@1942	771 uw_copy_client_data(c->data, ctx->client_data);
adam@1942	772 ctx->client = c;
adamc@682	773 }
adamc@682	774 }
adamc@682	775
adamc@671	776 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	777 int r = setjmp(ctx->jmp_buf);
adamc@671	778
adam@1931	779 if (r == 0)
adam@1931	780 ctx->app->handle(ctx, path);
adam@1931	781
adam@1931	782 return r;
adam@1931	783 }
adam@1931	784
adam@1931	785 void uw_ensure_transaction(uw_context ctx) {
adam@1931	786 if (!ctx->transaction_started) {
adam@1936	787 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adamc@671	788 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1931	789 ctx->transaction_started = 1;
adamc@671	790 }
adamc@671	791 }
adamc@671	792
adamc@772	793 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	794 if (ctx->client == NULL)
adamc@682	795 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	796
adamc@682	797 return ctx->client->id;
adamc@682	798 }
adamc@682	799
adamc@425	800 void uw_pop_cleanup(uw_context ctx) {
adamc@425	801 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	802 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	803
adamc@425	804 --ctx->cleanup_front;
adamc@425	805 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	806 }
adamc@425	807
adamc@311	808 char *uw_error_message(uw_context ctx) {
adamc@167	809 return ctx->error_message;
adamc@167	810 }
adamc@167	811
adamc@1115	812 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	813 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	814 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	815 }
adamc@1115	816
adamc@759	817 static input *INP(uw_context ctx) {
adamc@759	818 if (ctx->cur_container == NULL)
adamc@759	819 return ctx->inputs;
adamc@759	820 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	821 return ctx->cur_container->data.subform.fields;
adamc@759	822 else if (ctx->cur_container->kind == ENTRY)
adamc@759	823 return ctx->cur_container->data.entry.fields;
adamc@759	824 else
adamc@760	825 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	826 }
adamc@759	827
adamc@760	828 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	829 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	830 *ptr += new_start - old_start;
adamc@760	831 }
adamc@760	832
adamc@760	833 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	834 switch (x->kind) {
adamc@759	835 case SUBFORM:
adamc@760	836 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	837 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	838 break;
adamc@759	839 case SUBFORMS:
adamc@760	840 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	841 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	842 break;
adamc@759	843 case ENTRY:
adamc@760	844 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	845 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	846 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	847 break;
adamc@1134	848 default:
adamc@1134	849 break;
adamc@759	850 }
adamc@759	851 }
adamc@759	852
adamc@1113	853 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	854
adamc@759	855 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	856 size_t i;
adamc@759	857 input *r;
adamc@759	858
adamc@759	859 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	860 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	861 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	862
adamc@759	863 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	864
adamc@760	865 if (ctx->subinputs != new_subinputs) {
adamc@760	866 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	867 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	868 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	869 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	870
adamc@760	871 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	872
adamc@760	873 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	874 ctx->subinputs = new_subinputs;
adamc@760	875 }
adamc@759	876 }
adamc@759	877
adamc@759	878 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	879
adamc@759	880 for (i = 0; i < len; ++i)
adam@1474	881 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	882
adamc@759	883 return r;
adamc@759	884 }
adamc@756	885
adamc@801	886 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	887 //printf("Input name %s\n", name);
adamc@1038	888
adamc@756	889 if (!strcasecmp(name, ".b")) {
adamc@1094	890 int n = ctx->app->input_num(value);
adamc@756	891 input *inps;
adamc@756	892
adamc@801	893 if (n < 0) {
adam@1444	894 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	895 return -1;
adamc@801	896 }
adamc@801	897
adamc@1094	898 if (n >= ctx->app->inputs_len) {
adam@1444	899 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	900 return -1;
adamc@801	901 }
adamc@756	902
adamc@1094	903 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	904
adamc@759	905 INP(ctx)[n].kind = SUBFORM;
adamc@759	906 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	907 INP(ctx)[n].data.subform.fields = inps;
adamc@759	908 ctx->cur_container = &INP(ctx)[n];
adamc@756	909 } else if (!strcasecmp(name, ".e")) {
adamc@756	910 input *tmp;
adamc@756	911
adamc@801	912 if (ctx->cur_container == NULL) {
adamc@801	913 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	914 return -1;
adamc@801	915 }
adamc@756	916
adamc@759	917 tmp = ctx->cur_container;
adamc@759	918 switch (tmp->kind) {
adamc@759	919 case SUBFORM:
adamc@759	920 ctx->cur_container = tmp->data.subform.parent;
adamc@759	921 tmp->data.subform.parent = NULL;
adamc@759	922 break;
adamc@759	923 case SUBFORMS:
adamc@759	924 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	925 tmp->data.subforms.parent = NULL;
adamc@759	926 break;
adamc@759	927 case ENTRY:
adamc@759	928 ctx->cur_container = tmp->data.entry.parent;
adamc@759	929 break;
adamc@759	930 default:
adamc@801	931 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	932 return -1;
adamc@759	933 }
adamc@759	934 } else if (!strcasecmp(name, ".s")) {
adamc@1094	935 int n = ctx->app->input_num(value);
adamc@759	936
adamc@801	937 if (n < 0) {
adam@1444	938 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	939 return -1;
adamc@801	940 }
adamc@801	941
adamc@1094	942 if (n >= ctx->app->inputs_len) {
adam@1444	943 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	944 return -1;
adamc@801	945 }
adamc@759	946
adamc@759	947 INP(ctx)[n].kind = SUBFORMS;
adamc@759	948 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	949 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	950 ctx->cur_container = &INP(ctx)[n];
adamc@759	951 } else if (!strcasecmp(name, ".i")) {
adamc@759	952 input *inps;
adamc@759	953
adamc@801	954 if (!ctx->cur_container) {
adamc@801	955 uw_set_error(ctx, "New entry without container");
adamc@801	956 return -1;
adamc@801	957 }
adamc@801	958
adamc@801	959 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	960 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	961 return -1;
adamc@801	962 }
adamc@759	963
adamc@1094	964 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	965
adamc@759	966 inps->kind = ENTRY;
adamc@759	967 inps->data.entry.parent = ctx->cur_container;
adamc@759	968 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	969 ctx->cur_container->data.subforms.entries = inps;
adamc@759	970
adamc@759	971 inps->data.entry.fields = inps+1;
adamc@759	972 ctx->cur_container = inps;
adamc@756	973 } else {
adamc@1094	974 int n = ctx->app->input_num(name);
adamc@756	975
adam@1384	976 if (n < 0)
adam@1384	977 return 0;
adamc@801	978
adamc@1094	979 if (n >= ctx->app->inputs_len) {
adam@1444	980 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	981 return -1;
adamc@801	982 }
adamc@756	983
adamc@756	984 INP(ctx)[n].kind = NORMAL;
adamc@756	985 INP(ctx)[n].data.normal = value;
adamc@756	986 }
adamc@801	987
adamc@801	988 return 0;
adamc@144	989 }
adamc@144	990
adamc@311	991 char *uw_get_input(uw_context ctx, int n) {
adamc@169	992 if (n < 0)
adamc@311	993 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	994 if (n >= ctx->app->inputs_len)
adamc@311	995 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	996
adamc@756	997 switch (INP(ctx)[n].kind) {
adamc@737	998 case UNSET:
adamc@737	999 return NULL;
adamc@739	1000 case FIL:
adamc@739	1001 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1002 case SUBFORM:
adamc@756	1003 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1004 case SUBFORMS:
adamc@759	1005 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1006 case ENTRY:
adamc@759	1007 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1008 case NORMAL:
adamc@756	1009 return INP(ctx)[n].data.normal;
adamc@737	1010 default:
adamc@737	1011 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1012 }
adamc@138	1013 }
adamc@138	1014
adamc@311	1015 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	1016 if (n < 0)
adamc@311	1017 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1018 if (n >= ctx->app->inputs_len)
adamc@311	1019 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1020
adamc@756	1021 switch (INP(ctx)[n].kind) {
adamc@737	1022 case UNSET:
adamc@737	1023 return "";
adamc@739	1024 case FIL:
adamc@739	1025 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1026 case SUBFORM:
adamc@756	1027 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1028 case SUBFORMS:
adamc@759	1029 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1030 case ENTRY:
adamc@759	1031 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1032 case NORMAL:
adamc@756	1033 return INP(ctx)[n].data.normal;
adamc@737	1034 default:
adamc@737	1035 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1036 }
adamc@737	1037 }
adamc@737	1038
adamc@801	1039 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1040 int n = ctx->app->input_num(name);
adamc@737	1041
adamc@801	1042 if (n < 0) {
adam@1444	1043 uw_set_error(ctx, "Bad file input name %s", uw_Basis_htmlifyString(ctx, name));
adamc@801	1044 return -1;
adamc@801	1045 }
adamc@801	1046
adamc@1094	1047 if (n >= ctx->app->inputs_len) {
adam@1444	1048 uw_set_error(ctx, "For file input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	1049 return -1;
adamc@801	1050 }
adamc@737	1051
adamc@739	1052 ctx->inputs[n].kind = FIL;
adamc@739	1053 ctx->inputs[n].data.file = f;
adamc@801	1054
adamc@801	1055 return 0;
adamc@737	1056 }
adamc@737	1057
adamc@739	1058 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1059
adamc@739	1060 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1061 if (n < 0)
adamc@737	1062 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1063 if (n >= ctx->app->inputs_len)
adamc@737	1064 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1065
adamc@756	1066 switch (INP(ctx)[n].kind) {
adamc@737	1067 case UNSET:
adamc@737	1068 {
adamc@739	1069 char *data = uw_malloc(ctx, 0);
adamc@740	1070 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1071 return f;
adamc@737	1072 }
adamc@739	1073 case FIL:
adamc@756	1074 return INP(ctx)[n].data.file;
adamc@737	1075 case NORMAL:
adamc@737	1076 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1077 case SUBFORM:
adamc@756	1078 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1079 case SUBFORMS:
adamc@759	1080 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1081 case ENTRY:
adamc@759	1082 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1083 default:
adamc@737	1084 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1085 }
adamc@190	1086 }
adamc@190	1087
adamc@756	1088 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1089 if (n < 0)
adamc@756	1090 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1091 if (n >= ctx->app->inputs_len)
adamc@756	1092 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1093
adamc@756	1094 switch (INP(ctx)[n].kind) {
adamc@756	1095 case UNSET:
adamc@756	1096 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1097 case FIL:
adamc@756	1098 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1099 case NORMAL:
adamc@756	1100 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1101 case SUBFORMS:
adamc@759	1102 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1103 case ENTRY:
adamc@759	1104 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1105 case SUBFORM:
adamc@759	1106 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1107 ctx->cur_container = &INP(ctx)[n];
adamc@756	1108 return;
adamc@756	1109 default:
adamc@756	1110 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1111 }
adamc@756	1112 }
adamc@756	1113
adamc@756	1114 void uw_leave_subform(uw_context ctx) {
adamc@756	1115 input *tmp;
adamc@756	1116
adamc@759	1117 if (ctx->cur_container == NULL)
adamc@756	1118 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1119
adamc@759	1120 tmp = ctx->cur_container;
adamc@759	1121 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1122 tmp->data.subform.parent = NULL;
adamc@759	1123 }
adamc@759	1124
adamc@759	1125 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1126 input *inps;
adamc@759	1127
adamc@759	1128 if (n < 0)
adamc@759	1129 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1130 if (n >= ctx->app->inputs_len)
adamc@759	1131 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1132
adamc@759	1133 switch (INP(ctx)[n].kind) {
adamc@759	1134 case UNSET:
adamc@759	1135 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1136 case FIL:
adamc@759	1137 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1138 case NORMAL:
adamc@759	1139 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1140 case SUBFORM:
adamc@759	1141 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1142 case ENTRY:
adamc@759	1143 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1144 case SUBFORMS:
adamc@759	1145 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1146 if (inps) {
adamc@759	1147 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1148 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1149 return 1;
adamc@759	1150 } else
adamc@759	1151 return 0;
adamc@759	1152 default:
adamc@759	1153 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1154 }
adamc@759	1155 }
adamc@759	1156
adamc@759	1157 int uw_next_entry(uw_context ctx) {
adamc@759	1158 if (ctx->cur_container == NULL)
adamc@759	1159 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1160
adamc@759	1161 switch (ctx->cur_container->kind) {
adamc@759	1162 case UNSET:
adamc@759	1163 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1164 case FIL:
adamc@759	1165 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1166 case NORMAL:
adamc@759	1167 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1168 case SUBFORM:
adamc@759	1169 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1170 case SUBFORMS:
adamc@759	1171 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1172 case ENTRY:
adamc@759	1173 if (ctx->cur_container->data.entry.next) {
adamc@759	1174 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1175 return 1;
adamc@759	1176 } else {
adamc@759	1177 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1178 return 0;
adamc@759	1179 }
adamc@759	1180 default:
adamc@759	1181 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1182 }
adamc@756	1183 }
adamc@756	1184
adamc@643	1185 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1186 ctx->script_header = s;
adamc@643	1187 }
adamc@643	1188
adamc@1094	1189 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1190 return ctx->app->url_prefix;
adamc@667	1191 }
adamc@667	1192
adamc@693	1193 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1194 ctx->needs_push = n;
adamc@693	1195 }
adamc@693	1196
adamc@736	1197 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1198 ctx->needs_sig = n;
adamc@736	1199 }
adamc@736	1200
adam@1936	1201 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936	1202 ctx->could_write_db = n;
adam@1936	1203 }
adam@1936	1204
adamc@667	1205
adam@1369	1206 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1207 if (b->back - b->front < extra) {
adamc@666	1208 size_t desired = b->front - b->start + extra, next;
adamc@136	1209 char *new_heap;
adamc@136	1210
adamc@666	1211 next = b->back - b->start;
adamc@317	1212 if (next == 0)
adamc@317	1213 next = 1;
adamc@317	1214 for (; next < desired; next *= 2);
adamc@136	1215
adamc@1134	1216 if (next > b->max) {
adamc@1113	1217 if (desired <= b->max)
adamc@1113	1218 next = desired;
adamc@1113	1219 else
adamc@1113	1220 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1221 }
adamc@1113	1222
adamc@666	1223 new_heap = realloc(b->start, next);
adamc@666	1224 b->front = new_heap + (b->front - b->start);
adamc@666	1225 b->back = new_heap + next;
adamc@136	1226
adamc@667	1227 if (new_heap != b->start) {
adamc@666	1228 b->start = new_heap;
adam@1389	1229 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1230 }
adamc@136	1231
adamc@666	1232 b->start = new_heap;
adamc@136	1233 }
adamc@136	1234 }
adamc@136	1235
adamc@832	1236 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1237 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1238 }
adamc@666	1239
adamc@832	1240 char *uw_heap_front(uw_context ctx) {
adamc@832	1241 return ctx->heap.front;
adamc@832	1242 }
adamc@832	1243
adamc@832	1244 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1245 ctx->heap.front = fr;
adamc@832	1246 }
adamc@832	1247
adam@1782	1248 void uw_begin_initializing(uw_context ctx) {
adam@1782	1249 ctx->amInitializing = 1;
adam@1782	1250 }
adam@1782	1251
adam@1782	1252 void uw_end_initializing(uw_context ctx) {
adam@1782	1253 ctx->amInitializing = 0;
adam@1782	1254 }
adam@1782	1255
adamc@311	1256 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136	1257 void *result;
adamc@136	1258
adam@1782	1259 if (ctx->amInitializing) {
adam@1782	1260 result = malloc(len);
adam@1782	1261
adam@1782	1262 if (result)
adam@1782	1263 return result;
adam@1782	1264 else
adam@1782	1265 uw_error(ctx, FATAL, "uw_malloc: malloc() returns 0");
adam@1782	1266 } else {
adam@1782	1267 uw_check_heap(ctx, len);
adam@1782	1268
adam@1782	1269 result = ctx->heap.front;
adam@1782	1270 ctx->heap.front += len;
adam@1782	1271 return result;
adam@1782	1272 }
adamc@117	1273 }
adamc@117	1274
adamc@323	1275 void uw_begin_region(uw_context ctx) {
adamc@666	1276 regions r = (regions ) ctx->heap.front;
adamc@323	1277
adamc@323	1278 uw_check_heap(ctx, sizeof(regions));
adamc@323	1279
adamc@666	1280 ctx->heap.front += sizeof(regions);
adamc@323	1281
adamc@323	1282 r->next = ctx->regions;
adamc@323	1283 ctx->regions = r;
adamc@323	1284 }
adamc@323	1285
adamc@323	1286 void uw_end_region(uw_context ctx) {
adamc@323	1287 regions *r = ctx->regions;
adamc@323	1288
adamc@323	1289 if (r == NULL)
adamc@323	1290 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1291
adamc@666	1292 ctx->heap.front = (char *) r;
adamc@323	1293 ctx->regions = r->next;
adamc@323	1294 }
adamc@323	1295
adamc@324	1296 void uw_memstats(uw_context ctx) {
adam@1369	1297 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1298 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1299 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1300 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1301 }
adamc@324	1302
adam@1915	1303 int uw_pagelen(uw_context ctx) {
adam@1915	1304 return ctx->page.front - ctx->page.start;
adam@1915	1305 }
adam@1915	1306
adamc@311	1307 int uw_send(uw_context ctx, int sock) {
adam@1949	1308 size_t target_length = (ctx->outHeaders.front - ctx->outHeaders.start) + 2 + (ctx->page.front - ctx->page.start);
adam@1949	1309
adam@1949	1310 if (ctx->output_buffer_size < target_length) {
adam@1949	1311 do {
adam@1949	1312 ctx->output_buffer_size *= 2;
adam@1949	1313 } while (ctx->output_buffer_size < target_length);
adam@1949	1314 ctx->output_buffer = realloc(ctx->output_buffer, ctx->output_buffer_size);
adam@1949	1315 }
adam@1949	1316
adam@1949	1317 memcpy(ctx->output_buffer, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adam@1949	1318 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start), "\r\n", 2);
adam@1949	1319 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start) + 2, ctx->page.start, ctx->page.front - ctx->page.start);
adam@1949	1320
adam@1949	1321 return uw_really_send(sock, ctx->output_buffer, target_length);
adamc@462	1322 }
adamc@462	1323
adamc@856	1324 int uw_print(uw_context ctx, int fd) {
adamc@856	1325 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1326
adamc@856	1327 if (n < 0)
adamc@856	1328 return n;
adamc@856	1329
adamc@856	1330 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1331
adamc@856	1332 if (n < 0)
adamc@856	1333 return n;
adamc@856	1334
adamc@856	1335 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1336 }
adamc@856	1337
adamc@860	1338 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1339 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1340
adamc@860	1341 if (n < 0)
adamc@860	1342 return n;
adamc@860	1343
adamc@860	1344 n = output(data, "\r\n", 2);
adamc@860	1345
adamc@860	1346 if (n < 0)
adamc@860	1347 return n;
adamc@860	1348
adamc@860	1349 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1350 }
adamc@860	1351
adamc@462	1352 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1353 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1354 }
adamc@462	1355
adamc@462	1356 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1357 int len = strlen(s);
adamc@462	1358
adamc@462	1359 uw_check_headers(ctx, len + 1);
adamc@666	1360 strcpy(ctx->outHeaders.front, s);
adamc@666	1361 ctx->outHeaders.front += len;
adamc@562	1362 }
adamc@562	1363
adam@1934	1364 int uw_has_contentLength(uw_context ctx) {
adam@1934	1365 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934	1366 }
adam@1934	1367
adamc@1110	1368 void uw_clear_headers(uw_context ctx) {
adam@1369	1369 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1370 }
adamc@1110	1371
adam@1932	1372 void uw_Basis_clear_page(uw_context ctx) {
adam@1932	1373 uw_buffer_reset(&ctx->page);
adam@1932	1374 }
adam@1932	1375
adamc@562	1376 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1377 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1378 }
adamc@562	1379
adamc@562	1380 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1381 int len = strlen(s);
adamc@562	1382
adamc@562	1383 uw_check_script(ctx, len + 1);
adamc@666	1384 strcpy(ctx->script.front, s);
adamc@666	1385 ctx->script.front += len;
adamc@562	1386 }
adamc@562	1387
adam@1446	1388 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1389 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1390 uw_write_script(ctx, "sig=\"");
adam@1671	1391 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1392 uw_write_script(ctx, "\";");
adam@1671	1393 }
adam@1671	1394
adam@1446	1395 return ctx->script.start;
adam@1446	1396 }
adam@1446	1397
adamc@695	1398 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1399 if (s[0] == 0)
adamc@695	1400 return "";
adamc@695	1401 else {
adamc@695	1402 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1403 sprintf(r, " onload='%s'", s);
adamc@695	1404 return r;
adamc@695	1405 }
adamc@695	1406 }
adamc@695	1407
adamc@1042	1408 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1409 if (ctx->script_header[0] == 0)
adamc@1042	1410 return "";
adamc@1042	1411 else {
vshabanoff@1763	1412 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763	1413 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042	1414 return r;
adamc@1042	1415 }
adamc@1042	1416 }
adamc@1042	1417
adamc@694	1418 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1419 if (ctx->client == NULL) {
adamc@736	1420 if (ctx->needs_sig) {
adamc@1094	1421 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1422 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1423 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1424 return r;
adamc@736	1425 }
adamc@736	1426 else
adamc@736	1427 return "";
adamc@736	1428 } else {
adamc@1094	1429 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1430 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1431 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1432 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1433 (ctx->isPost ? "true" : "false"),
adamc@682	1434 ctx->client->id,
adamc@682	1435 ctx->client->pass,
adamc@1094	1436 ctx->app->url_prefix,
adamc@1094	1437 ctx->app->timeout,
adamc@736	1438 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1439 sig,
adamc@736	1440 ctx->needs_sig ? "\";" : "");
adamc@679	1441 return r;
adamc@668	1442 }
adamc@667	1443 }
adamc@667	1444
adamc@574	1445 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1446 char r, s2;
adamc@574	1447
adam@1446	1448 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1449
adamc@666	1450 r = s2 = ctx->heap.front;
adamc@574	1451 *s2++ = '"';
adamc@574	1452
adamc@574	1453 for (; *s; s++) {
adam@1286	1454 unsigned char c = *s;
adamc@574	1455
adamc@574	1456 switch (c) {
adamc@574	1457 case '"':
adamc@574	1458 strcpy(s2, "\\\"");
adamc@574	1459 s2 += 2;
adamc@574	1460 break;
adamc@1027	1461 case '\'':
adamc@1027	1462 strcpy(s2, "\\047");
adamc@1027	1463 s2 += 4;
adamc@1027	1464 break;
adamc@574	1465 case '\\':
adamc@574	1466 strcpy(s2, "\\\\");
adamc@574	1467 s2 += 2;
adamc@574	1468 break;
adam@1457	1469 case '<':
adam@1457	1470 strcpy(s2, "\\074");
adam@1457	1471 s2 += 4;
adam@1457	1472 break;
adamc@574	1473 default:
adam@1286	1474 if (isprint((int)c) \|\| c >= 128)
adamc@574	1475 *s2++ = c;
adamc@574	1476 else {
adam@1429	1477 sprintf(s2, "\\%03o", c);
adamc@574	1478 s2 += 4;
adamc@574	1479 }
adamc@574	1480 }
adamc@574	1481 }
adamc@574	1482
adamc@574	1483 strcpy(s2, "\"");
adamc@910	1484 ctx->heap.front = s2 + 2;
adamc@574	1485 return r;
adamc@574	1486 }
adamc@574	1487
adam@1286	1488 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1489 unsigned char c = c1;
adamc@1025	1490 char r, s2;
adamc@1025	1491
adam@1446	1492 uw_check_heap(ctx, 7);
adamc@1025	1493
adamc@1025	1494 r = s2 = ctx->heap.front;
adamc@1025	1495 *s2++ = '"';
adamc@1025	1496
adamc@1025	1497 switch (c) {
adamc@1025	1498 case '"':
adamc@1025	1499 strcpy(s2, "\\\"");
adamc@1025	1500 s2 += 2;
adamc@1025	1501 break;
adamc@1027	1502 case '\'':
adamc@1027	1503 strcpy(s2, "\\047");
adamc@1027	1504 s2 += 4;
adamc@1027	1505 break;
adamc@1025	1506 case '\\':
adamc@1025	1507 strcpy(s2, "\\\\");
adamc@1025	1508 s2 += 2;
adamc@1025	1509 break;
adam@1457	1510 case '<':
adam@1457	1511 strcpy(s2, "\\074");
adam@1457	1512 s2 += 4;
adam@1457	1513 break;
adamc@1025	1514 default:
adam@1286	1515 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1516 *s2++ = c;
adamc@1025	1517 else {
adam@1429	1518 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1519 s2 += 4;
adamc@1025	1520 }
adamc@1025	1521 }
adamc@1025	1522
adamc@1025	1523 strcpy(s2, "\"");
adamc@1025	1524 ctx->heap.front = s2 + 2;
adamc@1025	1525 return r;
adamc@1025	1526 }
adamc@1025	1527
adamc@574	1528 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1529 char r, s2;
adamc@574	1530
adam@1446	1531 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1532
adamc@666	1533 r = s2 = ctx->script.front;
adamc@574	1534 *s2++ = '"';
adamc@574	1535
adamc@574	1536 for (; *s; s++) {
adam@1286	1537 unsigned char c = *s;
adamc@574	1538
adamc@574	1539 switch (c) {
adamc@577	1540 case '\'':
adamc@1027	1541 strcpy(s2, "\\");
adamc@574	1542 s2 += 2;
adamc@574	1543 break;
adamc@574	1544 case '\\':
adamc@574	1545 strcpy(s2, "\\\\");
adamc@574	1546 s2 += 2;
adamc@574	1547 break;
adam@1457	1548 case '<':
adam@1457	1549 strcpy(s2, "\\074");
adam@1457	1550 s2 += 4;
adam@1457	1551 break;
adamc@574	1552 default:
adam@1286	1553 if (isprint((int)c) \|\| c >= 128)
adamc@574	1554 *s2++ = c;
adamc@574	1555 else {
adam@1429	1556 sprintf(s2, "\\%03o", c);
adamc@574	1557 s2 += 4;
adamc@574	1558 }
adamc@574	1559 }
adamc@574	1560 }
adamc@574	1561
adamc@574	1562 strcpy(s2, "\"");
adamc@666	1563 ctx->script.front = s2 + 1;
adamc@574	1564 return r;
adamc@574	1565 }
adamc@574	1566
adamc@682	1567 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1568 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1569 return "null";
adamc@682	1570 else {
adamc@682	1571 int len;
adamc@682	1572 char *r;
adamc@682	1573
adamc@682	1574 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1575 r = ctx->heap.front;
adamc@682	1576 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1577 ctx->heap.front += len+1;
adamc@682	1578 return r;
adamc@682	1579 }
adamc@682	1580 }
adamc@682	1581
adam@1446	1582 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1583 int len;
adamc@577	1584 size_t s_len = strlen(s);
adamc@562	1585
adam@1446	1586 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1587 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1588 ctx->script.front += len;
adamc@666	1589 strcpy(ctx->script.front, s);
adamc@666	1590 ctx->script.front += s_len;
adamc@970	1591 strcpy(ctx->script.front, "));");
adamc@972	1592 ctx->script.front += 3;
adamc@562	1593
adam@1446	1594 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1595 return r;
adam@1446	1596 }
adam@1446	1597
adam@1446	1598 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1599 int len;
adamc@577	1600 size_t s_len = strlen(s);
adamc@577	1601
adam@1446	1602 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1603 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1604 ctx->script.front += len;
adamc@666	1605 strcpy(ctx->script.front, s);
adamc@666	1606 ctx->script.front += s_len;
adamc@970	1607 strcpy(ctx->script.front, "));");
adamc@972	1608 ctx->script.front += 3;
adamc@577	1609
adamc@577	1610 return uw_unit_v;
adamc@577	1611 }
adamc@577	1612
adamc@311	1613 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1614 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1615 }
adamc@117	1616
adamc@311	1617 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1618 *(ctx->page.front)++ = c;
adam@1413	1619 *ctx->page.front = 0;
adamc@117	1620 }
adamc@117	1621
adamc@311	1622 void uw_writec(uw_context ctx, char c) {
adam@1413	1623 uw_check(ctx, 2);
adamc@311	1624 uw_writec_unsafe(ctx, c);
adamc@117	1625 }
adamc@117	1626
adamc@311	1627 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1628 int len = strlen(s);
adamc@666	1629 memcpy(ctx->page.front, s, len);
adamc@666	1630 ctx->page.front += len;
adamc@117	1631 }
adamc@117	1632
adamc@311	1633 void uw_write(uw_context ctx, const char* s) {
adamc@311	1634 uw_check(ctx, strlen(s) + 1);
adamc@311	1635 uw_write_unsafe(ctx, s);
adamc@666	1636 *ctx->page.front = 0;
adamc@102	1637 }
adamc@106	1638
adamc@311	1639 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1640 char *result;
adamc@136	1641 int len;
adamc@311	1642 uw_check_heap(ctx, INTS_MAX);
adamc@666	1643 result = ctx->heap.front;
adamc@276	1644 sprintf(result, "%lld%n", n, &len);
adamc@666	1645 ctx->heap.front += len+1;
adamc@136	1646 return result;
adamc@106	1647 }
adamc@106	1648
adamc@311	1649 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1650 char *result;
adamc@136	1651 int len;
adamc@311	1652 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1653 result = ctx->heap.front;
adam@1920	1654 sprintf(result, "%.16g%n", n, &len);
adamc@666	1655 ctx->heap.front += len+1;
adamc@136	1656 return result;
adamc@106	1657 }
adamc@106	1658
adamc@311	1659 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1660 int len = strlen(s);
adamc@136	1661 char result, p;
adamc@311	1662 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1663
adamc@666	1664 result = p = ctx->heap.front;
adamc@136	1665
adamc@136	1666 for (; *s; s++) {
adamc@1054	1667 unsigned char c = *s;
adamc@136	1668
adamc@136	1669 if (c == '"') {
adamc@136	1670 strcpy(p, """);
adamc@136	1671 p += 6;
adamc@136	1672 } else if (c == '&') {
adamc@136	1673 strcpy(p, "&");
adamc@136	1674 p += 5;
adamc@136	1675 }
adamc@1059	1676 else
adamc@136	1677 *p++ = c;
adamc@136	1678 }
adamc@136	1679
adamc@137	1680 *p++ = 0;
adamc@666	1681 ctx->heap.front = p;
adamc@136	1682 return result;
adamc@106	1683 }
adamc@106	1684
adamc@1011	1685 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1686 char result, p;
adamc@1011	1687 uw_check_heap(ctx, 7);
adamc@1011	1688
adamc@1011	1689 result = p = ctx->heap.front;
adamc@1011	1690
adamc@1011	1691 if (c == '"') {
adamc@1011	1692 strcpy(p, """);
adamc@1011	1693 p += 6;
adamc@1011	1694 } else if (c == '&') {
adamc@1011	1695 strcpy(p, "&");
adamc@1011	1696 p += 5;
adamc@1011	1697 }
adamc@1059	1698 else
adamc@1011	1699 *p++ = c;
adamc@1011	1700
adamc@1011	1701 *p++ = 0;
adamc@1011	1702 ctx->heap.front = p;
adamc@1011	1703 return result;
adamc@1011	1704 }
adamc@1011	1705
adamc@721	1706 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1707 return s;
adamc@721	1708 }
adamc@721	1709
adamc@311	1710 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1711 int len;
adamc@117	1712
adamc@666	1713 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1714 ctx->page.front += len;
adamc@106	1715 }
adamc@106	1716
adamc@428	1717 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1718 uw_check(ctx, INTS_MAX);
adamc@311	1719 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1720
adamc@428	1721 return uw_unit_v;
adamc@106	1722 }
adamc@106	1723
adamc@428	1724 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1725 int len;
adamc@117	1726
adamc@311	1727 uw_check(ctx, FLOATS_MAX);
adamc@666	1728 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1729 ctx->page.front += len;
adamc@428	1730
adamc@428	1731 return uw_unit_v;
adamc@117	1732 }
adamc@117	1733
adamc@428	1734 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1735 uw_check(ctx, strlen(s) * 6);
adamc@117	1736
adamc@106	1737 for (; *s; s++) {
adamc@1054	1738 unsigned char c = *s;
adamc@106	1739
adamc@106	1740 if (c == '"')
adamc@311	1741 uw_write_unsafe(ctx, """);
adamc@136	1742 else if (c == '&')
adamc@311	1743 uw_write_unsafe(ctx, "&");
adamc@1059	1744 else
adamc@311	1745 uw_writec_unsafe(ctx, c);
adamc@106	1746 }
adamc@428	1747
adamc@428	1748 return uw_unit_v;
adamc@106	1749 }
adamc@120	1750
adamc@1011	1751 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1752 uw_check(ctx, 6);
adamc@1011	1753
adamc@1011	1754 if (c == '"')
adamc@1011	1755 uw_write_unsafe(ctx, """);
adamc@1011	1756 else if (c == '&')
adamc@1011	1757 uw_write_unsafe(ctx, "&");
adamc@1059	1758 else
adamc@1011	1759 uw_writec_unsafe(ctx, c);
adamc@1011	1760
adamc@1011	1761 return uw_unit_v;
adamc@1011	1762 }
adamc@1011	1763
adamc@120	1764
adamc@311	1765 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1766 int len;
adamc@137	1767 char *r;
adamc@137	1768
adamc@311	1769 uw_check_heap(ctx, INTS_MAX);
adamc@666	1770 r = ctx->heap.front;
adamc@276	1771 sprintf(r, "%lld%n", n, &len);
adamc@666	1772 ctx->heap.front += len+1;
adamc@137	1773 return r;
adamc@120	1774 }
adamc@120	1775
adamc@682	1776 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1777 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1778 return "";
adamc@682	1779 else {
adamc@682	1780 int len;
adamc@682	1781 char *r;
adamc@679	1782
adamc@682	1783 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1784 r = ctx->heap.front;
adamc@682	1785 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1786 ctx->heap.front += len+1;
adamc@682	1787 return r;
adamc@682	1788 }
adamc@679	1789 }
adamc@679	1790
adamc@311	1791 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1792 int len;
adamc@137	1793 char *r;
adamc@137	1794
adamc@311	1795 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1796 r = ctx->heap.front;
adamc@137	1797 sprintf(r, "%g%n", n, &len);
adamc@666	1798 ctx->heap.front += len+1;
adamc@137	1799 return r;
adamc@120	1800 }
adamc@120	1801
adamc@311	1802 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1803 char r, p;
adamc@137	1804
adamc@925	1805 if (s[0] == '\0')
adamc@925	1806 return "_";
adamc@925	1807
adamc@925	1808 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1809
adamc@925	1810 r = p = ctx->heap.front;
adamc@925	1811 if (s[0] == '_')
adamc@925	1812 *p++ = '_';
adamc@925	1813
adamc@925	1814 for (; *s; s++) {
adamc@1087	1815 unsigned char c = *s;
adamc@137	1816
adamc@137	1817 if (c == ' ')
adamc@137	1818 *p++ = '+';
adamc@137	1819 else if (isalnum(c))
adamc@137	1820 *p++ = c;
adamc@137	1821 else {
adamc@1259	1822 sprintf(p, ".%02X", c);
adamc@137	1823 p += 3;
adamc@137	1824 }
adamc@137	1825 }
adamc@137	1826
adamc@137	1827 *p++ = 0;
adamc@666	1828 ctx->heap.front = p;
adamc@137	1829 return r;
adamc@120	1830 }
adamc@120	1831
adamc@311	1832 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1833 if (b == uw_Basis_False)
adamc@186	1834 return "0";
adamc@186	1835 else
adamc@186	1836 return "1";
adamc@186	1837 }
adamc@186	1838
adam@1620	1839 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1840 char *r;
adam@1620	1841 int len;
adam@1620	1842 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1843 r = ctx->heap.front;
adam@1620	1844 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1845 ctx->heap.front += len+1;
adam@1620	1846 return r;
adam@1620	1847 }
adam@1620	1848
adamc@311	1849 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1850 int len;
adamc@120	1851
adamc@666	1852 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1853 ctx->page.front += len;
adamc@120	1854 }
adamc@120	1855
adamc@428	1856 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1857 uw_check(ctx, INTS_MAX);
adamc@311	1858 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1859
adamc@428	1860 return uw_unit_v;
adamc@120	1861 }
adamc@120	1862
adamc@682	1863 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1864 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1865 int len;
adamc@682	1866
adamc@682	1867 uw_check(ctx, INTS_MAX + 1);
adamc@682	1868 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1869 ctx->page.front += len;
adamc@682	1870 }
adamc@682	1871
adamc@679	1872 return uw_unit_v;
adamc@679	1873 }
adamc@679	1874
adamc@428	1875 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1876 int len;
adamc@120	1877
adamc@311	1878 uw_check(ctx, FLOATS_MAX);
adamc@666	1879 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1880 ctx->page.front += len;
adamc@428	1881
adamc@428	1882 return uw_unit_v;
adamc@120	1883 }
adamc@120	1884
adamc@488	1885 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1886 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1887 }
adamc@488	1888
adam@1404	1889 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1890 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1891 }
adam@1404	1892
adamc@428	1893 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1894 if (s[0] == '\0') {
adamc@925	1895 uw_check(ctx, 1);
adamc@925	1896 uw_writec_unsafe(ctx, '_');
adamc@925	1897 return uw_unit_v;
adamc@925	1898 }
adamc@925	1899
adamc@925	1900 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1901
adamc@925	1902 if (s[0] == '_')
adamc@925	1903 uw_writec_unsafe(ctx, '_');
adamc@120	1904
adamc@120	1905 for (; *s; s++) {
adamc@1087	1906 unsigned char c = *s;
adamc@120	1907
adamc@120	1908 if (c == ' ')
adamc@311	1909 uw_writec_unsafe(ctx, '+');
adamc@120	1910 else if (isalnum(c))
adamc@311	1911 uw_writec_unsafe(ctx, c);
adamc@120	1912 else {
adamc@1259	1913 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1914 ctx->page.front += 3;
adamc@120	1915 }
adamc@120	1916 }
adamc@428	1917
adamc@428	1918 return uw_unit_v;
adamc@120	1919 }
adamc@120	1920
adamc@428	1921 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1922 if (b == uw_Basis_False)
adamc@311	1923 uw_writec(ctx, '0');
adamc@186	1924 else
adamc@311	1925 uw_writec(ctx, '1');
adamc@428	1926
adamc@428	1927 return uw_unit_v;
adamc@186	1928 }
adamc@186	1929
adam@1620	1930 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	1931 int len;
adam@1620	1932
adam@1620	1933 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	1934 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1935 ctx->page.front += len;
adam@1620	1936
adam@1620	1937 return uw_unit_v;
adam@1620	1938 }
adam@1620	1939
adamc@120	1940
adamc@311	1941 static char uw_unurlify_advance(char s) {
adamc@144	1942 char *new_s = strchr(s, '/');
adamc@120	1943
adamc@120	1944 if (new_s)
adamc@120	1945 *new_s++ = 0;
adamc@120	1946 else
adamc@144	1947 new_s = strchr(s, 0);
adamc@144	1948
adamc@144	1949 return new_s;
adamc@144	1950 }
adamc@144	1951
adamc@311	1952 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1953 char new_s = uw_unurlify_advance(s);
adamc@311	1954 uw_Basis_int r;
adamc@120	1955
adamc@276	1956 r = atoll(*s);
adamc@120	1957 *s = new_s;
adamc@120	1958 return r;
adamc@120	1959 }
adamc@120	1960
adamc@311	1961 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1962 char new_s = uw_unurlify_advance(s);
adamc@311	1963 uw_Basis_float r;
adamc@120	1964
adamc@120	1965 r = atof(*s);
adamc@120	1966 *s = new_s;
adamc@120	1967 return r;
adamc@120	1968 }
adamc@120	1969
adamc@488	1970 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	1971 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	1972 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	1973 return r;
adamc@488	1974 }
adamc@488	1975
adamc@1023	1976 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1977 char s1, s2 = s;
adamc@144	1978 int n;
adamc@136	1979
adamc@1023	1980 if (!fromClient) {
adamc@1023	1981 if (*s2 == '_')
adamc@1023	1982 ++s2;
adamc@1259	1983 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1984 s2 += 3;
adamc@1023	1985 }
adamc@925	1986
adamc@927	1987 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	1988 unsigned char c = *s2;
adamc@136	1989
adamc@136	1990 switch (c) {
adamc@136	1991 case '+':
adamc@136	1992 *s1 = ' ';
adamc@136	1993 break;
adamc@136	1994 case '%':
adamc@169	1995 if (s2[1] == 0)
adamc@311	1996 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1997 if (s2[2] == 0)
adamc@311	1998 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1999 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2000 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	2001 *s1 = n;
adamc@136	2002 s2 += 2;
adamc@136	2003 break;
adamc@1259	2004 case '.':
adamc@1259	2005 if (!fromClient) {
adamc@1259	2006 if (s2[1] == 0)
adamc@1259	2007 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	2008 if (s2[2] == 0)
adamc@1259	2009 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	2010 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2011 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	2012 *s1 = n;
adamc@1259	2013 s2 += 2;
adamc@1259	2014 break;
adamc@1259	2015 }
adamc@136	2016 default:
adamc@136	2017 *s1 = c;
adamc@136	2018 }
adamc@136	2019 }
adamc@136	2020 *s1++ = 0;
adamc@144	2021 return s1;
adamc@144	2022 }
adamc@144	2023
adamc@311	2024 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	2025 char new_s = uw_unurlify_advance(s);
adamc@311	2026 uw_Basis_bool r;
adamc@186	2027
adamc@186	2028 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2029 r = uw_Basis_False;
adamc@186	2030 else
adamc@311	2031 r = uw_Basis_True;
adamc@186	2032
adamc@186	2033 *s = new_s;
adamc@186	2034 return r;
adamc@186	2035 }
adamc@186	2036
adamc@311	2037 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2038 char new_s = uw_unurlify_advance(s);
adamc@1134	2039 char *r;
adamc@1134	2040 int len;
adamc@144	2041
adamc@200	2042 len = strlen(*s);
adamc@311	2043 uw_check_heap(ctx, len + 1);
adamc@144	2044
adamc@666	2045 r = ctx->heap.front;
adamc@1023	2046 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2047 *s = new_s;
adamc@1023	2048 return r;
adamc@1023	2049 }
adamc@1023	2050
adamc@1109	2051 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2052 s = uw_unurlify_advance(s);
adamc@1109	2053 return uw_unit_v;
adamc@1109	2054 }
adamc@1109	2055
adamc@1023	2056 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2057 char new_s = uw_unurlify_advance(s);
adamc@1134	2058 char *r;
adamc@1134	2059 int len;
adamc@1023	2060
adamc@1023	2061 len = strlen(*s);
adamc@1023	2062 uw_check_heap(ctx, len + 1);
adamc@1023	2063
adamc@1023	2064 r = ctx->heap.front;
adamc@1023	2065 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2066 *s = new_s;
adamc@136	2067 return r;
adamc@120	2068 }
adamc@135	2069
adamc@135	2070
adamc@311	2071 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2072 int len;
adamc@286	2073 char *r;
adamc@286	2074
adamc@311	2075 uw_check_heap(ctx, INTS_MAX);
adamc@666	2076 r = ctx->heap.front;
adamc@286	2077 sprintf(r, "%lld%n", n, &len);
adamc@666	2078 ctx->heap.front += len+1;
adamc@286	2079 return r;
adamc@286	2080 }
adamc@286	2081
adamc@428	2082 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2083 int len;
adamc@286	2084
adamc@311	2085 uw_check(ctx, INTS_MAX);
adamc@666	2086 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2087 ctx->page.front += len;
adamc@428	2088
adamc@428	2089 return uw_unit_v;
adamc@286	2090 }
adamc@286	2091
adam@1358	2092 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2093 unsigned int n = ch;
adam@1358	2094 int len;
adam@1358	2095 char *r;
adam@1358	2096
adam@1358	2097 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2098 r = ctx->heap.front;
adam@1358	2099 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2100 ctx->heap.front += len+1;
adam@1358	2101 return r;
adam@1358	2102 }
adam@1358	2103
adam@1358	2104 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2105 unsigned int n = ch;
adam@1358	2106 int len;
adam@1358	2107
adam@1358	2108 uw_check(ctx, INTS_MAX+3);
adam@1358	2109 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2110 ctx->page.front += len;
adam@1358	2111 return uw_unit_v;
adam@1358	2112 }
adam@1358	2113
adamc@311	2114 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2115 int len;
adamc@286	2116 char *r;
adamc@286	2117
adamc@311	2118 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2119 r = ctx->heap.front;
adamc@286	2120 sprintf(r, "%g%n", n, &len);
adamc@666	2121 ctx->heap.front += len+1;
adamc@286	2122 return r;
adamc@286	2123 }
adamc@286	2124
adamc@428	2125 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2126 int len;
adamc@286	2127
adamc@311	2128 uw_check(ctx, FLOATS_MAX);
adamc@666	2129 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2130 ctx->page.front += len;
adamc@428	2131
adamc@428	2132 return uw_unit_v;
adamc@286	2133 }
adamc@286	2134
adam@1365	2135 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2136 int len;
adam@1360	2137 char *r;
adam@1360	2138
adam@1360	2139 uw_check_heap(ctx, INTS_MAX);
adam@1360	2140 r = ctx->heap.front;
adamc@1377	2141 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2142 ctx->heap.front += len+1;
adam@1360	2143 return r;
adam@1360	2144 }
adam@1360	2145
adam@1365	2146 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2147 int len;
adam@1360	2148
adam@1360	2149 uw_check(ctx, INTS_MAX);
adam@1360	2150 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2151 ctx->page.front += len;
adam@1360	2152
adam@1360	2153 return uw_unit_v;
adam@1360	2154 }
adam@1360	2155
adam@1444	2156 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2157 char r, s2;
adamc@137	2158
adamc@311	2159 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2160
adamc@666	2161 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2162 unsigned char c = *s;
adamc@137	2163
adamc@137	2164 switch (c) {
adamc@137	2165 case '<':
adamc@137	2166 strcpy(s2, "<");
adamc@137	2167 s2 += 4;
adamc@137	2168 break;
adamc@137	2169 case '&':
adamc@137	2170 strcpy(s2, "&");
adamc@137	2171 s2 += 5;
adamc@137	2172 break;
adamc@137	2173 default:
adamc@1059	2174 *s2++ = c;
adamc@137	2175 }
adamc@137	2176 }
adamc@137	2177
adamc@137	2178 *s2++ = 0;
adamc@666	2179 ctx->heap.front = s2;
adamc@137	2180 return r;
adamc@135	2181 }
adamc@135	2182
adamc@428	2183 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2184 uw_check(ctx, strlen(s) * 6);
adamc@135	2185
adamc@135	2186 for (; *s; s++) {
adamc@1054	2187 unsigned char c = *s;
adamc@135	2188
adamc@135	2189 switch (c) {
adamc@135	2190 case '<':
adamc@311	2191 uw_write_unsafe(ctx, "<");
adamc@135	2192 break;
adamc@135	2193 case '&':
adamc@311	2194 uw_write_unsafe(ctx, "&");
adamc@135	2195 break;
adamc@135	2196 default:
adamc@1059	2197 uw_writec_unsafe(ctx, c);
adamc@135	2198 }
adamc@135	2199 }
adamc@428	2200
adamc@428	2201 return uw_unit_v;
adamc@135	2202 }
adamc@180	2203
adamc@311	2204 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2205 if (b == uw_Basis_False)
adamc@286	2206 return "False";
adamc@286	2207 else
adamc@286	2208 return "True";
adamc@286	2209 }
adamc@286	2210
adamc@428	2211 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2212 if (b == uw_Basis_False) {
adamc@311	2213 uw_check(ctx, 6);
adamc@666	2214 strcpy(ctx->page.front, "False");
adamc@666	2215 ctx->page.front += 5;
adamc@286	2216 } else {
adamc@311	2217 uw_check(ctx, 5);
adamc@666	2218 strcpy(ctx->page.front, "True");
adamc@666	2219 ctx->page.front += 4;
adamc@286	2220 }
adamc@428	2221
adamc@428	2222 return uw_unit_v;
adamc@286	2223 }
adamc@286	2224
adamc@436	2225 #define TIME_FMT "%x %X"
adamc@438	2226 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2227 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2228
adam@1629	2229 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2230
adamc@436	2231 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2232 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2233 }
adamc@436	2234
adamc@436	2235 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2236 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2237 }
adamc@436	2238
adam@1446	2239 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2240 int len;
adam@1446	2241 char *r;
adam@1446	2242
adam@1446	2243 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2244 r = ctx->heap.front;
adam@1446	2245 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2246 ctx->heap.front += len+1;
adam@1446	2247 return r;
adam@1446	2248 }
adam@1446	2249
adam@1446	2250 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2251 int len;
adam@1446	2252
adam@1446	2253 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2254 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2255 ctx->page.front += len;
adam@1446	2256
adam@1446	2257 return uw_unit_v;
adam@1446	2258 }
adam@1446	2259
adamc@821	2260 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2261 while (n >= 0) {
adam@1388	2262 if (*s == 0)
adam@1388	2263 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2264
adam@1388	2265 if (n == 0)
adam@1388	2266 return *s;
adam@1388	2267
adam@1388	2268 --n;
adam@1388	2269 ++s;
adam@1388	2270 }
adam@1388	2271
adam@1388	2272 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2273 }
adamc@821	2274
adamc@821	2275 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2276 while (n >= 0) {
adam@1388	2277 if (*s == 0 \|\| n == 0)
adam@1388	2278 return s;
adam@1388	2279
adam@1388	2280 --n;
adam@1388	2281 ++s;
adam@1388	2282 }
adam@1388	2283
adam@1388	2284 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2285 }
adamc@821	2286
adamc@828	2287 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2288 return strlen(s);
adamc@828	2289 }
adamc@828	2290
adam@1388	2291 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2292 while (n > 0) {
adam@1388	2293 if (*s == 0)
adam@1388	2294 return uw_Basis_False;
adam@1388	2295
adam@1388	2296 --n;
adam@1388	2297 ++s;
adam@1388	2298 }
adam@1388	2299
adam@1388	2300 return uw_Basis_True;
adam@1388	2301 }
adam@1388	2302
adamc@829	2303 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2304 return strchr(s, ch);
adamc@829	2305 }
adamc@829	2306
adamc@831	2307 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2308 return strcspn(s, chs);
adamc@831	2309 }
adamc@831	2310
adamc@829	2311 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2312 uw_Basis_string r = strchr(s, ch);
adamc@829	2313 if (r == NULL)
adamc@829	2314 return NULL;
adamc@829	2315 else {
adamc@829	2316 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2317 *nr = r - s;
adamc@829	2318 return nr;
adamc@829	2319 }
adamc@829	2320 }
adamc@829	2321
adam@1390	2322 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2323 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2324 if (r == NULL)
adam@1390	2325 return NULL;
adam@1390	2326 else {
adam@1390	2327 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2328 *nr = r - haystack;
adam@1390	2329 return nr;
adam@1390	2330 }
adam@1390	2331 }
adam@1390	2332
adamc@311	2333 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2334 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2335 char *s;
adamc@180	2336
adamc@311	2337 uw_check_heap(ctx, len);
adamc@180	2338
adamc@666	2339 s = ctx->heap.front;
adamc@180	2340
adamc@180	2341 strcpy(s, s1);
adamc@180	2342 strcat(s, s2);
adamc@666	2343 ctx->heap.front += len;
adamc@180	2344
adamc@180	2345 return s;
adamc@180	2346 }
adamc@278	2347
adamc@829	2348 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2349 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2350
adamc@829	2351 if (start < 0)
adamc@829	2352 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2353 if (len < 0)
adamc@829	2354 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2355 if (start + len > full_len)
adamc@829	2356 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2357
adamc@829	2358 if (start + len == full_len)
adamc@829	2359 return &s[start];
adamc@829	2360 else {
adamc@829	2361 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2362 memcpy(r, s+start, len);
adamc@829	2363 r[len] = 0;
adamc@829	2364 return r;
adamc@829	2365 }
adamc@829	2366
adamc@829	2367 }
adamc@829	2368
adamc@1023	2369 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2370 char *r;
adamc@1023	2371
adamc@1023	2372 uw_check_heap(ctx, 2);
adamc@1023	2373 r = ctx->heap.front;
adamc@1023	2374 r[0] = ch;
adamc@1023	2375 r[1] = 0;
adamc@1023	2376
adamc@1023	2377 ctx->heap.front += 2;
adamc@1023	2378
adamc@1023	2379 return r;
adamc@1023	2380 }
adamc@1023	2381
adamc@737	2382 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2383 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2384 char *s;
adamc@278	2385
adamc@311	2386 uw_check_heap(ctx, len);
adamc@278	2387
adamc@666	2388 s = ctx->heap.front;
adamc@278	2389
adamc@278	2390 strcpy(s, s1);
adamc@666	2391 ctx->heap.front += len;
adamc@278	2392
adamc@278	2393 return s;
adamc@278	2394 }
adamc@280	2395
adam@1295	2396 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2397 if (ctx->error_message[0]) {
adam@1295	2398 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2399 ctx->error_message[0] = 0;
adam@1295	2400 return s;
adam@1295	2401 } else
adam@1295	2402 return NULL;
adam@1295	2403 }
adam@1295	2404
adamc@737	2405 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2406 if (s1)
adamc@737	2407 return uw_strdup(ctx, s1);
adamc@493	2408 else
adamc@493	2409 return NULL;
adamc@493	2410 }
adamc@493	2411
adamc@742	2412 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2413 char *r = uw_malloc(ctx, len);
adamc@742	2414 memcpy(r, p, len);
adamc@742	2415 return r;
adamc@742	2416 }
adamc@280	2417
adamc@879	2418 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2419
adamc@311	2420 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2421 int len;
adamc@281	2422 char *r;
adamc@281	2423
adamc@311	2424 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2425 r = ctx->heap.front;
adamc@879	2426 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2427 ctx->heap.front += len+1;
adamc@281	2428 return r;
adamc@281	2429 }
adamc@281	2430
adamc@467	2431 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2432 if (n == NULL)
adamc@467	2433 return "NULL";
adamc@467	2434 else
adamc@467	2435 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2436 }
adamc@467	2437
adam@1920	2438 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879	2439
adamc@311	2440 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2441 int len;
adamc@281	2442 char *r;
adamc@281	2443
adamc@311	2444 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2445 r = ctx->heap.front;
adamc@879	2446 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2447 ctx->heap.front += len+1;
adamc@281	2448 return r;
adamc@281	2449 }
adamc@281	2450
adamc@467	2451 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2452 if (n == NULL)
adamc@467	2453 return "NULL";
adamc@467	2454 else
adamc@467	2455 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2456 }
adamc@467	2457
adam@1834	2458 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2459 char *uw_sqlsuffixString = "::text";
adamc@1011	2460 char *uw_sqlsuffixChar = "::char";
adamc@281	2461
adamc@311	2462 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2463 char r, s2;
adamc@280	2464
adamc@879	2465 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2466
adamc@666	2467 r = s2 = ctx->heap.front;
adamc@879	2468 if (uw_Estrings)
adamc@879	2469 *s2++ = 'E';
adamc@280	2470 *s2++ = '\'';
adamc@280	2471
adamc@280	2472 for (; *s; s++) {
adamc@280	2473 char c = *s;
adamc@280	2474
adamc@280	2475 switch (c) {
adamc@280	2476 case '\'':
adamc@885	2477 if (uw_Estrings)
adamc@885	2478 strcpy(s2, "\\'");
adamc@885	2479 else
adamc@885	2480 strcpy(s2, "''");
adamc@280	2481 s2 += 2;
adamc@280	2482 break;
adamc@280	2483 case '\\':
adamc@885	2484 if (uw_Estrings) {
adamc@885	2485 strcpy(s2, "\\\\");
adamc@885	2486 s2 += 2;
adamc@885	2487 } else
adamc@885	2488 *s2++ = '\\';
adamc@280	2489 break;
adamc@280	2490 default:
adamc@1150	2491 if (isprint((int)c))
adamc@280	2492 *s2++ = c;
adamc@879	2493 else if (uw_Estrings) {
adam@1857	2494 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2495 s2 += 4;
adamc@280	2496 }
adamc@879	2497 else
adam@1689	2498 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2499 }
adamc@280	2500 }
adamc@280	2501
adamc@879	2502 *s2++ = '\'';
adamc@879	2503 strcpy(s2, uw_sqlsuffixString);
adamc@879	2504 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2505 return r;
adamc@280	2506 }
adamc@281	2507
adamc@1011	2508 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2509 char r, s2;
adamc@1011	2510
adamc@1011	2511 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2512
adamc@1011	2513 r = s2 = ctx->heap.front;
adamc@1011	2514 if (uw_Estrings)
adamc@1011	2515 *s2++ = 'E';
adamc@1011	2516 *s2++ = '\'';
adamc@1011	2517
adamc@1011	2518 switch (c) {
adamc@1011	2519 case '\'':
adamc@1011	2520 if (uw_Estrings)
adamc@1011	2521 strcpy(s2, "\\'");
adamc@1011	2522 else
adamc@1011	2523 strcpy(s2, "''");
adamc@1011	2524 s2 += 2;
adamc@1011	2525 break;
adamc@1011	2526 case '\\':
adamc@1011	2527 if (uw_Estrings) {
adamc@1011	2528 strcpy(s2, "\\\\");
adamc@1011	2529 s2 += 2;
adamc@1011	2530 } else
adamc@1011	2531 *s2++ = '\\';
adamc@1011	2532 break;
adamc@1011	2533 default:
adamc@1150	2534 if (isprint((int)c))
adamc@1011	2535 *s2++ = c;
adamc@1011	2536 else if (uw_Estrings) {
adam@1857	2537 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2538 s2 += 4;
adamc@1011	2539 }
adamc@1011	2540 else
adamc@1011	2541 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2542 }
adamc@1011	2543
adamc@1011	2544 *s2++ = '\'';
adamc@1011	2545 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2546 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2547 return r;
adamc@1011	2548 }
adamc@1011	2549
adamc@879	2550 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2551
adam@1867	2552 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2553 char r, s2;
adamc@737	2554 size_t i;
adamc@737	2555
adam@1867	2556 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2557
adamc@737	2558 r = s2 = ctx->heap.front;
adamc@879	2559 if (uw_Estrings)
adamc@879	2560 *s2++ = 'E';
adam@1867	2561 else
adam@1867	2562 *s2++ = 'X';
adamc@737	2563 *s2++ = '\'';
adamc@737	2564
adamc@737	2565 for (i = 0; i < b.size; ++i) {
adam@1867	2566 unsigned char c = b.data[i];
adam@1867	2567
adam@1867	2568 if (uw_Estrings) {
adam@1867	2569 switch (c) {
adam@1867	2570 case '\'':
adamc@885	2571 strcpy(s2, "\\'");
adam@1867	2572 s2 += 2;
adam@1867	2573 break;
adam@1867	2574 case '\\':
adamc@885	2575 strcpy(s2, "\\\\\\\\");
adamc@885	2576 s2 += 4;
adam@1867	2577 break;
adam@1867	2578 default:
adam@1867	2579 if (isprint((int)c))
adam@1867	2580 *s2++ = c;
adam@1867	2581 else {
adam@1867	2582 sprintf(s2, "\\\\%03o", c);
adam@1867	2583 s2 += 5;
adam@1867	2584 }
adamc@737	2585 }
adam@1867	2586 } else {
adam@1867	2587 sprintf(s2, "%02X", c);
adam@1867	2588 s2 += 2;
adamc@737	2589 }
adam@1867	2590 }
adamc@737	2591
adamc@879	2592 *s2++ = '\'';
adamc@879	2593 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2594 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2595 return r;
adamc@737	2596 }
adamc@737	2597
adamc@682	2598 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2599 int len;
adamc@682	2600 char *r;
adamc@682	2601 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2602
adamc@682	2603 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2604 r = ctx->heap.front;
adamc@879	2605 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2606 ctx->heap.front += len+1;
adamc@682	2607 return r;
adamc@682	2608 }
adamc@682	2609
adamc@682	2610 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2611 int len;
adamc@682	2612 char *r;
adamc@682	2613 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2614
adamc@682	2615 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2616 r = ctx->heap.front;
adamc@682	2617 sprintf(r, "%lld%n", combo, &len);
adamc@682	2618 ctx->heap.front += len+1;
adamc@682	2619 return r;
adamc@682	2620 }
adamc@682	2621
adamc@879	2622 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2623
adamc@682	2624 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2625 int len;
adamc@682	2626 char *r;
adamc@682	2627
adamc@682	2628 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2629 r = ctx->heap.front;
adamc@879	2630 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2631 ctx->heap.front += len+1;
adamc@682	2632 return r;
adamc@682	2633 }
adamc@682	2634
adamc@682	2635 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2636 int len;
adamc@682	2637 char *r;
adamc@682	2638
adamc@682	2639 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2640 r = ctx->heap.front;
adamc@682	2641 sprintf(r, "%u%n", cli, &len);
adamc@682	2642 ctx->heap.front += len+1;
adamc@682	2643 return r;
adamc@682	2644 }
adamc@682	2645
adamc@467	2646 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2647 if (s == NULL)
adamc@467	2648 return "NULL";
adamc@467	2649 else
adamc@467	2650 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2651 }
adamc@467	2652
adamc@311	2653 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2654 if (b == uw_Basis_False)
adamc@281	2655 return "FALSE";
adamc@281	2656 else
adamc@281	2657 return "TRUE";
adamc@281	2658 }
adamc@282	2659
adamc@467	2660 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2661 if (b == NULL)
adamc@467	2662 return "NULL";
adamc@467	2663 else
adamc@467	2664 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2665 }
adamc@467	2666
adamc@439	2667 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2668 size_t len;
adamc@682	2669 char r, s;
adam@1392	2670 struct tm stm = {};
adam@1392	2671 stm.tm_isdst = -1;
adamc@682	2672
adam@1365	2673 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2674 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2675 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2676 if (uw_sql_type_annotations) {
adam@1834	2677 if (t.microseconds) {
adam@1834	2678 r = uw_malloc(ctx, len + 21);
adam@1834	2679 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2680 } else {
adam@1834	2681 r = uw_malloc(ctx, len + 14);
adam@1834	2682 sprintf(r, "'%s'::timestamp", s);
adam@1834	2683 }
adam@1367	2684 } else {
adam@1834	2685 r = uw_malloc(ctx, len + 3);
adam@1834	2686 sprintf(r, "'%s'", s);
adam@1367	2687 }
adamc@682	2688 return r;
adamc@682	2689 } else
adamc@682	2690 return "<Invalid time>";
adamc@682	2691 }
adamc@682	2692
adamc@682	2693 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2694 size_t len;
adamc@439	2695 char *r;
adam@1392	2696 struct tm stm = {};
adam@1392	2697 stm.tm_isdst = -1;
adamc@439	2698
adam@1365	2699 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2700 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2701 r = ctx->heap.front;
adamc@439	2702 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2703 ctx->heap.front += len+1;
adamc@439	2704 return r;
adamc@439	2705 } else
adamc@439	2706 return "<Invalid time>";
adamc@439	2707 }
adamc@439	2708
adam@1364	2709 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2710 size_t len;
adam@1364	2711 char *r;
adam@1392	2712 struct tm stm = {};
adam@1392	2713 stm.tm_isdst = -1;
adam@1364	2714
adam@1365	2715 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2716 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2717 r = ctx->heap.front;
adam@1365	2718 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2719 ctx->heap.front += len;
adam@1365	2720 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2721 ctx->heap.front += 8;
adam@1364	2722 return r;
adam@1364	2723 } else
adam@1364	2724 return "<Invalid time>";
adam@1364	2725 }
adam@1364	2726
adamc@467	2727 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2728 if (t == NULL)
adamc@467	2729 return "NULL";
adamc@467	2730 else
adamc@467	2731 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2732 }
adamc@467	2733
adamc@311	2734 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2735 static uw_Basis_int true = 1;
adamc@311	2736 static uw_Basis_int false = 0;
adamc@282	2737
adamc@311	2738 if (b == uw_Basis_False)
adamc@282	2739 return (char *)&false;
adamc@282	2740 else
adamc@282	2741 return (char *)&true;
adamc@282	2742 }
adamc@284	2743
adamc@311	2744 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2745 int len;
adamc@284	2746 char *r;
adamc@284	2747
adamc@311	2748 uw_check_heap(ctx, INTS_MAX);
adamc@666	2749 r = ctx->heap.front;
adamc@284	2750 sprintf(r, "%lld%n", n, &len);
adamc@666	2751 ctx->heap.front += len+1;
adamc@284	2752 return r;
adamc@284	2753 }
adamc@285	2754
adamc@311	2755 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2756 int len;
adamc@285	2757 char *r;
adamc@285	2758
adamc@311	2759 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2760 r = ctx->heap.front;
adamc@285	2761 sprintf(r, "%g%n", n, &len);
adamc@666	2762 ctx->heap.front += len+1;
adamc@285	2763 return r;
adamc@285	2764 }
adamc@285	2765
adamc@821	2766 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2767 char *r = uw_malloc(ctx, 2);
adamc@821	2768 r[0] = ch;
adamc@821	2769 r[1] = 0;
adamc@821	2770 return r;
adamc@821	2771 }
adamc@821	2772
adamc@311	2773 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2774 if (b == uw_Basis_False)
adamc@285	2775 return "False";
adamc@285	2776 else
adamc@285	2777 return "True";
adamc@285	2778 }
adamc@288	2779
adam@1359	2780 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2781 size_t len;
adam@1352	2782 char *r;
adam@1392	2783 struct tm stm = {};
adam@1392	2784 stm.tm_isdst = -1;
adam@1352	2785
adam@1365	2786 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2787 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2788 r = ctx->heap.front;
adam@1352	2789 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2790 ctx->heap.front += len+1;
adam@1352	2791 return r;
adam@1352	2792 } else
adam@1352	2793 return "<Invalid time>";
adam@1352	2794 }
adam@1352	2795
adam@1629	2796 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2797 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2798 }
adam@1629	2799
adamc@311	2800 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2801 char *endptr;
adamc@311	2802 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2803
adamc@288	2804 if (s != '\0' && endptr == '\0') {
adamc@311	2805 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2806 *r = n;
adamc@288	2807 return r;
adamc@288	2808 } else
adamc@288	2809 return NULL;
adamc@288	2810 }
adamc@289	2811
adamc@311	2812 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2813 char *endptr;
adamc@311	2814 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2815
adamc@289	2816 if (s != '\0' && endptr == '\0') {
adamc@311	2817 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2818 *r = n;
adamc@289	2819 return r;
adamc@289	2820 } else
adamc@289	2821 return NULL;
adamc@289	2822 }
adamc@289	2823
adamc@821	2824 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2825 if (s[0] == 0) {
adamc@821	2826 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2827 r[0] = 0;
adamc@821	2828 return r;
adamc@821	2829 } else if (s[1] != 0)
adamc@821	2830 return NULL;
adamc@821	2831 else {
adamc@821	2832 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2833 r[0] = s[0];
adamc@821	2834 return r;
adamc@821	2835 }
adamc@821	2836 }
adamc@821	2837
adamc@311	2838 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2839 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2840 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2841
adamc@289	2842 if (!strcasecmp (s, "True"))
adamc@289	2843 return &true;
adamc@289	2844 else if (!strcasecmp (s, "False"))
adamc@289	2845 return &false;
adamc@289	2846 else
adamc@289	2847 return NULL;
adamc@289	2848 }
adamc@292	2849
adamc@436	2850 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2851 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2852 struct tm stm = {};
adam@1392	2853 stm.tm_isdst = -1;
adamc@436	2854
adamc@439	2855 if (dot) {
adamc@439	2856 *dot = 0;
adamc@439	2857 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2858 *dot = '.';
adamc@439	2859 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2860 r->seconds = mktime(&stm);
adam@1365	2861 r->microseconds = 0;
adamc@439	2862 return r;
adamc@439	2863 }
adamc@439	2864 else {
adamc@439	2865 *dot = '.';
adamc@439	2866 return NULL;
adamc@439	2867 }
adamc@436	2868 }
adamc@439	2869 else {
adamc@439	2870 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2871 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2872 r->seconds = mktime(&stm);
adam@1365	2873 r->microseconds = 0;
adamc@439	2874 return r;
adamc@439	2875 }
adamc@439	2876 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2877 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2878 r->seconds = mktime(&stm);
adam@1365	2879 r->microseconds = 0;
adamc@439	2880 return r;
adam@1632	2881 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2882 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2883 r->seconds = mktime(&stm);
adam@1632	2884 r->microseconds = 0;
adam@1632	2885 return r;
adamc@439	2886 }
adamc@439	2887 else
adamc@439	2888 return NULL;
adamc@439	2889 }
adamc@436	2890 }
adamc@436	2891
adam@1352	2892 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2893 char *end = strchr(s, 0);
adam@1374	2894 struct tm stm = {};
adam@1392	2895 stm.tm_isdst = -1;
adam@1352	2896
adam@1352	2897 if (strptime(s, fmt, &stm) == end) {
adam@1352	2898 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2899 r->seconds = mktime(&stm);
adam@1365	2900 r->microseconds = 0;
adam@1352	2901 return r;
adam@1352	2902 }
adam@1352	2903 else
adam@1352	2904 return NULL;
adam@1352	2905 }
adam@1352	2906
adamc@311	2907 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2908 char *endptr;
adamc@311	2909 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2910
adamc@292	2911 if (s != '\0' && endptr == '\0')
adamc@292	2912 return n;
adamc@292	2913 else
adam@1444	2914 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2915 }
adamc@293	2916
adamc@682	2917 #include <errno.h>
adamc@682	2918
adamc@678	2919 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2920 unsigned long long n;
adamc@682	2921
adamc@682	2922 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2923 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	2924 else {
adamc@682	2925 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2926 return ch;
adamc@682	2927 }
adamc@682	2928 }
adamc@682	2929
adamc@682	2930 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2931 char *endptr;
adamc@682	2932 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2933
adamc@678	2934 if (s != '\0' && endptr == '\0')
adamc@678	2935 return n;
adamc@678	2936 else
adam@1444	2937 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	2938 }
adamc@678	2939
adamc@311	2940 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2941 char *endptr;
adamc@311	2942 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2943
adamc@293	2944 if (s != '\0' && endptr == '\0')
adamc@293	2945 return n;
adamc@293	2946 else
adam@1444	2947 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2948 }
adamc@293	2949
adamc@821	2950 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2951 if (s[0] == 0)
adamc@821	2952 return 0;
adamc@821	2953 else if (s[1] != 0)
adam@1444	2954 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	2955 else
adamc@821	2956 return s[0];
adamc@821	2957 }
adamc@821	2958
adamc@311	2959 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2960 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2961 return uw_Basis_True;
adamc@296	2962 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2963 return uw_Basis_False;
adamc@293	2964 else
adam@1444	2965 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2966 }
adamc@436	2967
adam@1352	2968 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	2969 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	2970 struct tm stm = {};
adam@1392	2971 stm.tm_isdst = -1;
adam@1352	2972
adam@1352	2973 if (dot) {
adam@1352	2974 *dot = 0;
adam@1352	2975 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	2976 *dot = '.';
adam@1410	2977 char usec[] = "000000";
adam@1410	2978 int len = strlen(dot+1);
adam@1410	2979 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	2980 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	2981 return r;
adam@1352	2982 }
adam@1352	2983 else {
adam@1352	2984 *dot = '.';
adam@1444	2985 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	2986 }
adam@1352	2987 }
adam@1352	2988 else {
adam@1352	2989 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	2990 uw_Basis_time r = { mktime(&stm) };
adam@1365	2991 return r;
adam@1352	2992 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	2993 uw_Basis_time r = { mktime(&stm) };
adam@1365	2994 return r;
adam@1352	2995 } else
adam@1444	2996 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	2997 }
adam@1352	2998 }
adam@1352	2999
adamc@436	3000 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	3001 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	3002 struct tm stm = {};
adam@1392	3003 stm.tm_isdst = -1;
adamc@436	3004
adamc@438	3005 if (dot) {
adamc@438	3006 *dot = 0;
adamc@438	3007 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	3008 *dot = '.';
adam@1365	3009 {
adam@1365	3010 uw_Basis_time r = { mktime(&stm) };
adam@1365	3011 return r;
adam@1365	3012 }
adamc@438	3013 }
adamc@438	3014 else {
adamc@438	3015 *dot = '.';
adam@1444	3016 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3017 }
adamc@438	3018 }
adamc@438	3019 else {
adam@1365	3020 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3021 uw_Basis_time r = { mktime(&stm) };
adam@1365	3022 return r;
adam@1365	3023 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3024 uw_Basis_time r = { mktime(&stm) };
adam@1365	3025 return r;
adam@1632	3026 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3027 uw_Basis_time r = { mktime(&stm) };
adam@1632	3028 return r;
adam@1365	3029 } else
adam@1444	3030 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3031 }
adamc@436	3032 }
adamc@457	3033
adam@1352	3034 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3035 char *end = strchr(s, 0);
adamc@939	3036 struct tm stm = {};
adam@1392	3037 stm.tm_isdst = -1;
adamc@939	3038
adam@1365	3039 if (strptime(s, fmt, &stm) == end) {
adam@1365	3040 uw_Basis_time r = { mktime(&stm) };
adam@1365	3041 return r;
adam@1365	3042 } else
adam@1444	3043 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3044 }
adamc@939	3045
adamc@742	3046 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3047 char *r = ctx->heap.front;
adamc@742	3048 uw_Basis_blob b = {len, r};
adamc@742	3049
adamc@742	3050 uw_check_heap(ctx, len);
adamc@742	3051
adamc@742	3052 while (*s) {
adamc@742	3053 if (s[0] == '\\') {
adamc@742	3054 if (s[1] == '\\') {
adamc@742	3055 *r++ = '\\';
adamc@742	3056 s += 2;
adamc@1153	3057 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adamc@742	3058 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	3059 s += 4;
adamc@742	3060 }
adamc@742	3061 else {
adamc@742	3062 *r++ = '\\';
adamc@742	3063 ++s;
adamc@742	3064 }
adamc@742	3065 } else {
adamc@742	3066 *r++ = s[0];
adamc@742	3067 ++s;
adamc@742	3068 }
adamc@742	3069 }
adamc@742	3070
adamc@742	3071 b.size = r - ctx->heap.front;
adamc@742	3072 ctx->heap.front = r;
adamc@742	3073 return b;
adamc@742	3074 }
adamc@742	3075
adam@1402	3076 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3077
adamc@463	3078 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3079 int len = strlen(c);
adamc@854	3080 char *p = ctx->outHeaders.start;
adamc@474	3081
adamc@1134	3082 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3083 char *p2;
adamc@474	3084 p += 13;
adamc@474	3085 p2 = strchr(p, '=');
adamc@474	3086
adamc@474	3087 if (p2) {
adamc@474	3088 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3089
adamc@474	3090 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3091 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3092 return NULL;
adamc@1052	3093 else {
adamc@1052	3094 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3095 memcpy(ret, p2+1, sz);
adamc@1052	3096 ret[sz] = 0;
adamc@1052	3097 return ret;
adamc@1052	3098 }
adamc@474	3099 }
adamc@474	3100 }
adamc@474	3101 }
adamc@463	3102
adamc@1134	3103 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3104 char *p2;
adamc@1051	3105
adamc@854	3106 while (1) {
adamc@1051	3107 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3108 if ((p2 = strchr(p, ';'))) {
adamc@1051	3109 size_t n = p2 - (p + len);
adamc@1051	3110 char *r = uw_malloc(ctx, n);
adamc@1051	3111 memcpy(r, p + 1 + len, n-1);
adamc@1051	3112 r[n-1] = 0;
adamc@1051	3113 return r;
adamc@1051	3114 } else
adamc@1051	3115 return p + 1 + len;
adamc@1134	3116 } else if ((p = strchr(p, ';')))
adamc@854	3117 p += 2;
adamc@463	3118 else
adamc@463	3119 return NULL;
adamc@463	3120 }
adamc@463	3121 }
adamc@792	3122
adamc@792	3123 return NULL;
adamc@457	3124 }
adamc@462	3125
adam@1877	3126 static void set_cookie(uw_context ctx) {
adam@1877	3127 if (ctx->usedSig)
adam@1877	3128 ctx->needsResig = 1;
adam@1877	3129 }
adam@1877	3130
adamc@1050	3131 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	3132 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3133 uw_write_header(ctx, c);
adamc@462	3134 uw_write_header(ctx, "=");
adamc@462	3135 uw_write_header(ctx, v);
adamc@466	3136 uw_write_header(ctx, "; path=");
adamc@466	3137 uw_write_header(ctx, prefix);
adamc@1050	3138 if (expires) {
adamc@1050	3139 char formatted[30];
adam@1392	3140 struct tm tm = {};
adam@1392	3141 tm.tm_isdst = -1;
adamc@1050	3142
adam@1365	3143 gmtime_r(&expires->seconds, &tm);
adamc@1050	3144
adamc@1050	3145 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3146
adamc@1050	3147 uw_write_header(ctx, "; expires=");
adamc@1050	3148 uw_write_header(ctx, formatted);
adamc@1050	3149 }
adamc@1050	3150 if (secure)
adamc@1050	3151 uw_write_header(ctx, "; secure");
adamc@462	3152 uw_write_header(ctx, "\r\n");
adam@1877	3153 set_cookie(ctx);
adamc@462	3154
adamc@462	3155 return uw_unit_v;
adamc@462	3156 }
adamc@667	3157
adamc@1050	3158 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3159 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3160 uw_write_header(ctx, c);
adamc@1050	3161 uw_write_header(ctx, "=; path=");
adamc@1050	3162 uw_write_header(ctx, prefix);
adamc@1052	3163 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3164 set_cookie(ctx);
adamc@1050	3165
adamc@1050	3166 return uw_unit_v;
adamc@1050	3167 }
adamc@1050	3168
adamc@1113	3169 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3170
adamc@682	3171 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3172 unsigned i;
adamc@682	3173 delta *d;
adamc@671	3174
adamc@682	3175 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3176 if (ctx->deltas[i].client == client)
adamc@682	3177 return &ctx->deltas[i];
adamc@671	3178
adamc@682	3179 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3180 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3181 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3182
adamc@682	3183 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3184 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3185 }
adamc@671	3186
adamc@682	3187 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3188 d->client = client;
adam@1369	3189 uw_buffer_reset(&d->msgs);
adamc@682	3190 return d;
adamc@671	3191 }
adamc@671	3192
adamc@668	3193 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3194 if (ctx->client == NULL)
adamc@682	3195 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3196
adamc@682	3197 return new_channel(ctx->client);
adamc@668	3198 }
adamc@668	3199
adamc@668	3200 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3201 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3202 size_t len;
adamc@682	3203 int preLen;
adamc@682	3204 char pre[INTS_MAX + 2];
adamc@668	3205
adamc@682	3206 len = strlen(msg);
adamc@682	3207
adamc@682	3208 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3209
adam@1369	3210 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3211 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3212 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3213
adamc@671	3214 return uw_unit_v;
adamc@668	3215 }
adamc@671	3216
adam@1327	3217 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3218 int i;
adamc@1131	3219 cleanup *cl;
adamc@1131	3220
adamc@1131	3221 if (ctx->client)
adamc@1131	3222 release_client(ctx->client);
adamc@1131	3223
adamc@1131	3224 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3225 cl->func(cl->arg);
adamc@1131	3226
adamc@1131	3227 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3228
adamc@1131	3229 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3230 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3231 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3232
adamc@1131	3233 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3234 if (ctx->transactionals[i].free)
adam@1327	3235 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3236
adam@1941	3237 if (ctx->app && ctx->transaction_started) {
adam@1941	3238 ctx->transaction_started = 0;
adam@1941	3239 return ctx->app->db_rollback(ctx);
adam@1941	3240 } else
adam@1941	3241 return 0;
adamc@1131	3242 }
adamc@1131	3243
adam@1728	3244 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	3245
adam@1877	3246 extern int uw_hash_blocksize;
adam@1877	3247
adam@1877	3248 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3249
adam@1877	3250 static char find_sig(char haystack) {
adam@1877	3251 int i;
adam@1877	3252 char *s = strstr(haystack, sig_intro);
adam@1877	3253
adam@1877	3254 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3255 return NULL;
adam@1877	3256
adam@1877	3257 s += sizeof sig_intro - 1;
adam@1877	3258
adam@1877	3259 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3260 if (!isxdigit((int)s[i]))
adam@1877	3261 return NULL;
adam@1877	3262
adam@1877	3263 if (s[i] != '"')
adam@1877	3264 return NULL;
adam@1877	3265
adam@1877	3266 return s;
adam@1877	3267 }
adam@1877	3268
adam@1938	3269 int uw_commit(uw_context ctx) {
adamc@1104	3270 int i;
adam@1877	3271 char *sig;
adamc@1104	3272
adamc@1131	3273 if (uw_has_error(ctx)) {
adam@1327	3274 uw_rollback(ctx, 0);
adam@1938	3275 return 0;
adamc@1131	3276 }
adamc@1131	3277
adamc@1104	3278 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3279 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3280 if (ctx->transactionals[i].commit) {
adamc@1083	3281 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3282 if (uw_has_error(ctx)) {
adam@1327	3283 uw_rollback(ctx, 0);
adam@1938	3284 return 0;
adamc@1131	3285 }
adamc@1131	3286 }
adamc@771	3287
adamc@1104	3288 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3289 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3290 if (ctx->transactionals[i].commit) {
adamc@1083	3291 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3292 if (uw_has_error(ctx)) {
adam@1327	3293 uw_rollback(ctx, 0);
adam@1938	3294 return 0;
adamc@1131	3295 }
adamc@1131	3296 }
adamc@1131	3297
adam@1938	3298 if (ctx->transaction_started) {
adam@1939	3299 int code = ctx->app->db_commit(ctx);
adam@1938	3300
adam@1938	3301 if (code) {
adam@1939	3302 if (code == -1)
adam@1938	3303 return 1;
adam@1938	3304
adam@1938	3305 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@1938	3306 if (ctx->transactionals[i].free)
adam@1938	3307 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@1938	3308
adam@1938	3309 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@1938	3310 return 0;
adam@1938	3311 }
adamc@1131	3312 }
adamc@682	3313
adamc@682	3314 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3315 delta *d = &ctx->deltas[i];
adamc@682	3316 client *c = find_client(d->client);
adamc@682	3317
adam@1551	3318 assert (c != NULL);
adam@1551	3319 assert(c->mode == USED);
adamc@682	3320
adam@1447	3321 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3322 }
adamc@682	3323
adamc@682	3324 if (ctx->client)
adamc@685	3325 release_client(ctx->client);
adamc@771	3326
adamc@1104	3327 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3328 if (ctx->transactionals[i].free)
adam@1327	3329 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3330
vshabanoff@1726	3331 uw_check(ctx, 1);
vshabanoff@1726	3332 *ctx->page.front = 0;
adam@1413	3333
adam@1728	3334 if (!ctx->returning_indirectly && !strncmp(ctx->page.start, begin_xhtml, sizeof begin_xhtml - 1)) {
adam@1728	3335 char *s;
adam@1728	3336
adam@1728	3337 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1728	3338 s = ctx->page.start + sizeof begin_xhtml - 1;
adam@1728	3339 s = strchr(s, '<');
adam@1728	3340 if (s == NULL) {
adam@1728	3341 // Weird. Document has no tags!
adam@1728	3342
adam@1728	3343 uw_write(ctx, "<head></head><body></body>");
adam@1728	3344 uw_check(ctx, 1);
adam@1728	3345 *ctx->page.front = 0;
adam@1728	3346 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3347 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3348
adam@1729	3349 // Any freeform JavaScript to include?
adam@1729	3350 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3351 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3352 size_t lenP = lenH + 40 + len;
adam@1729	3353 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3354
adam@1729	3355 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3356 start += ctx->page.start - oldPage;
adam@1729	3357 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3358 ctx->page.front += lenP;
adam@1729	3359 memcpy(start, ctx->script_header, lenH);
adam@1729	3360 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3361 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3362 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3363 } else {
adam@1729	3364 size_t lenH = strlen(ctx->script_header);
adam@1729	3365 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3366
adam@1729	3367 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3368 start += ctx->page.start - oldPage;
adam@1729	3369 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3370 ctx->page.front += lenH;
adam@1729	3371 memcpy(start, ctx->script_header, lenH);
adam@1729	3372 }
adam@1728	3373 } else {
adam@1728	3374 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3375
adam@1729	3376 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3377 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3378 size_t lenP = lenH + 53 + len;
adam@1729	3379 char start = s, oldPage = ctx->page.start;
adam@1729	3380
adam@1729	3381 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3382 start += ctx->page.start - oldPage;
adam@1729	3383 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3384 ctx->page.front += lenP;
adam@1729	3385 memcpy(start, "<head>", 6);
adam@1729	3386 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3387 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3388 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3389 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3390 } else {
adam@1729	3391 size_t lenH = strlen(ctx->script_header);
adam@1729	3392 size_t lenP = lenH + 13;
adam@1729	3393 char start = s, oldPage = ctx->page.start;
adam@1729	3394
adam@1729	3395 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3396 start += ctx->page.start - oldPage;
adam@1729	3397 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3398 ctx->page.front += lenP;
adam@1729	3399 memcpy(start, "<head>", 6);
adam@1729	3400 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3401 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3402 }
adamc@916	3403 }
adamc@916	3404 }
adam@1877	3405
adam@1877	3406 if (ctx->needsResig) {
adam@1877	3407 sig = find_sig(ctx->page.start);
adam@1877	3408 if (sig) {
adam@1877	3409 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3410
adam@1877	3411 do {
adam@1877	3412 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3413 sig = find_sig(sig);
adam@1877	3414 } while (sig);
adam@1877	3415 }
adam@1877	3416 }
adam@1938	3417
adam@1938	3418 return 0;
adamc@671	3419 }
adamc@671	3420
adamc@683	3421
adamc@1113	3422 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3423
adamc@771	3424 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3425 uw_callback_with_retry free) {
adamc@771	3426 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3427 if (ctx->used_transactionals+1 > uw_transactionals_max)
adamc@1113	3428 uw_error(ctx, FATAL, "Exceeded limit on number of transactionals");
adamc@1084	3429 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3430 ++ctx->n_transactionals;
adamc@771	3431 }
adamc@771	3432
adamc@771	3433 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3434 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3435 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3436 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	3437 }
adamc@771	3438
adamc@683	3439
adamc@683	3440 // "Garbage collection"
adamc@683	3441
adamc@1121	3442 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3443 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3444
adamc@1121	3445 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3446 int r = setjmp(ctx->jmp_buf);
adamc@683	3447
adamc@1121	3448 if (r == 0)
adamc@1121	3449 uw_do_expunge(ctx, cli, data);
adamc@1121	3450 else
adamc@1121	3451 ctx->app->db_rollback(ctx);
adamc@1121	3452
adamc@1121	3453 uw_post_expunge(ctx, data);
adamc@683	3454
adamc@683	3455 return r;
adamc@683	3456 }
adamc@683	3457
adamc@683	3458 void uw_prune_clients(uw_context ctx) {
adamc@683	3459 client c, next, *prev = NULL;
adamc@683	3460 time_t cutoff;
adamc@683	3461
adamc@1094	3462 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3463
adamc@683	3464 pthread_mutex_lock(&clients_mutex);
adam@1707	3465 pruning_thread = pthread_self();
adam@1707	3466 pruning_thread_initialized = 1;
adamc@683	3467
adamc@683	3468 for (c = clients_used; c; c = next) {
adamc@683	3469 next = c->next;
adamc@683	3470 pthread_mutex_lock(&c->lock);
adamc@685	3471 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3472 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3473 if (prev)
adamc@683	3474 prev->next = next;
adamc@683	3475 else
adamc@683	3476 clients_used = next;
adamc@683	3477 while (fk == UNLIMITED_RETRY) {
adam@1941	3478 uw_reset(ctx);
adamc@1121	3479 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3480 if (fk == UNLIMITED_RETRY)
adamc@684	3481 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3482 }
adamc@684	3483 if (fk == SUCCESS)
adamc@684	3484 free_client(c);
adamc@1121	3485 else
adamc@856	3486 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3487 }
adamc@683	3488 else
adamc@683	3489 prev = c;
adamc@683	3490 pthread_mutex_unlock(&c->lock);
adamc@683	3491 }
adamc@683	3492
adamc@683	3493 pthread_mutex_unlock(&clients_mutex);
adamc@683	3494 }
adamc@687	3495
adamc@687	3496 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3497 int r = setjmp(ctx->jmp_buf);
adamc@687	3498
adamc@687	3499 if (r == 0) {
adam@1936	3500 uw_ensure_transaction(ctx);
adamc@1094	3501 ctx->app->initializer(ctx);
adamc@1094	3502 if (ctx->app->db_commit(ctx))
adamc@687	3503 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3504 }
adamc@687	3505
adamc@687	3506 return r;
adamc@687	3507 }
adamc@717	3508
adamc@1065	3509 static int url_bad(uw_Basis_string s) {
adamc@1065	3510 for (; *s; ++s)
adamc@1153	3511 if (!isgraph((int)*s))
adamc@1065	3512 return 1;
adamc@1065	3513
adamc@1065	3514 return 0;
adamc@1065	3515 }
adamc@1065	3516
adamc@717	3517 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3518 if (url_bad(s))
adamc@1065	3519 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3520 if (ctx->app->check_url(s))
adamc@770	3521 return s;
adamc@770	3522 else
adamc@770	3523 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3524 }
adamc@734	3525
adamc@770	3526 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3527 if (url_bad(s))
adamc@1065	3528 return NULL;
adamc@1094	3529 if (ctx->app->check_url(s))
adamc@770	3530 return s;
adamc@770	3531 else
adamc@770	3532 return NULL;
adamc@770	3533 }
adamc@770	3534
adam@1465	3535 static int mime_format(const char *s) {
adamc@770	3536 for (; *s; ++s)
adamc@1153	3537 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.')
adamc@770	3538 return 0;
adamc@770	3539
adamc@770	3540 return 1;
adamc@770	3541 }
adamc@770	3542
adamc@741	3543 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3544 if (!mime_format(s))
adamc@770	3545 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3546
adamc@1094	3547 if (ctx->app->check_mime(s))
adamc@770	3548 return s;
adamc@770	3549 else
adamc@770	3550 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3551 }
adamc@770	3552
adamc@770	3553 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3554 if (!mime_format(s))
adamc@770	3555 return NULL;
adamc@770	3556
adamc@1094	3557 if (ctx->app->check_mime(s))
adamc@770	3558 return s;
adamc@770	3559 else
adamc@770	3560 return NULL;
adamc@741	3561 }
adamc@741	3562
adam@1465	3563 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3564 if (!mime_format(s))
adam@1465	3565 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3566
adam@1465	3567 if (ctx->app->check_requestHeader(s))
adam@1465	3568 return s;
adam@1465	3569 else
adam@1465	3570 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3571 }
adam@1465	3572
adam@1465	3573 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3574 if (!mime_format(s))
adam@1465	3575 return NULL;
adam@1465	3576
adam@1465	3577 if (ctx->app->check_requestHeader(s))
adam@1465	3578 return s;
adam@1465	3579 else
adam@1465	3580 return NULL;
adam@1465	3581 }
adam@1465	3582
adam@1465	3583 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3584 if (!mime_format(s))
adam@1465	3585 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3586
adam@1465	3587 if (ctx->app->check_responseHeader(s))
adam@1465	3588 return s;
adam@1465	3589 else
adam@1465	3590 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3591 }
adam@1465	3592
adam@1799	3593 static int envVar_format(const char *s) {
adam@1799	3594 for (; *s; ++s)
adam@1799	3595 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3596 return 0;
adam@1799	3597
adam@1799	3598 return 1;
adam@1799	3599 }
adam@1799	3600
adam@1465	3601 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3602 if (!envVar_format(s))
adam@1465	3603 return NULL;
adam@1465	3604
adam@1465	3605 if (ctx->app->check_responseHeader(s))
adam@1465	3606 return s;
adam@1465	3607 else
adam@1465	3608 return NULL;
adam@1465	3609 }
adam@1465	3610
adam@1799	3611 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3612 if (!envVar_format(s))
adam@1799	3613 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3614
adam@1799	3615 if (ctx->app->check_envVar(s))
adam@1799	3616 return s;
adam@1799	3617 else
adam@1799	3618 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3619 }
adam@1799	3620
adam@1799	3621 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3622 if (!mime_format(s))
adam@1799	3623 return NULL;
adam@1799	3624
adam@1799	3625 if (ctx->app->check_envVar(s))
adam@1799	3626 return s;
adam@1799	3627 else
adam@1799	3628 return NULL;
adam@1799	3629 }
adam@1799	3630
adam@1465	3631 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3632 return uw_Basis_requestHeader(ctx, name);
adam@1465	3633 }
adam@1465	3634
adam@1465	3635 static int mime_value_format(const char *s) {
adam@1465	3636 for (; *s; ++s)
adam@1465	3637 if (s == '\r' \|\| s == '\n')
adam@1465	3638 return 0;
adam@1465	3639
adam@1465	3640 return 1;
adam@1465	3641 }
adam@1465	3642
adam@1465	3643 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3644 if (!mime_value_format(value))
adam@1465	3645 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3646
adam@1465	3647 uw_write_header(ctx, name);
adam@1465	3648 uw_write_header(ctx, ": ");
adam@1465	3649 uw_write_header(ctx, value);
adam@1465	3650 uw_write_header(ctx, "\r\n");
adam@1465	3651
adam@1465	3652 return uw_unit_v;
adam@1465	3653 }
adam@1465	3654
adam@1799	3655 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1799	3656 return ctx->get_env(ctx->get_env_data, name);
adam@1799	3657 }
adam@1799	3658
adamc@734	3659 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3660 return s ? s : "";
adamc@734	3661 }
adamc@734	3662
adamc@734	3663 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3664 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3665 int i;
adamc@734	3666
adamc@734	3667 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3668 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3669
adamc@734	3670 return r;
adamc@734	3671 }
adamc@734	3672
adam@1512	3673 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3674 * optimizations that would enable timing attacks. See:
adam@1512	3675 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3676 */
adam@1512	3677 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3678 int i, x = 0, len1 = strlen(s1);
adam@1512	3679
adam@1512	3680 if (len1 != strlen(s2)) return 0;
adam@1512	3681
adam@1512	3682 for (i = 0; i < len1; ++i) {
adam@1512	3683 __asm__ __volatile__ ("");
adam@1512	3684 x \|= s1[i] ^ s2[i];
adam@1512	3685 }
adam@1512	3686
adam@1512	3687 return x == 0;
adam@1512	3688 }
adam@1512	3689
adamc@734	3690 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3691 ctx->usedSig = 1;
adamc@1094	3692 return ctx->app->cookie_sig(ctx);
adamc@734	3693 }
adamc@737	3694
adamc@737	3695 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3696 return f.name;
adamc@737	3697 }
adamc@737	3698
adamc@740	3699 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3700 return f.type;
adamc@740	3701 }
adamc@740	3702
adamc@745	3703 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3704 return b.size;
adamc@745	3705 }
adamc@745	3706
adamc@1119	3707 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3708 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3709
adamc@1119	3710 return b;
adamc@1119	3711 }
adamc@1119	3712
adamc@737	3713 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3714 return f.data;
adamc@737	3715 }
adamc@741	3716
adam@1347	3717 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3718 return pb.type;
adam@1347	3719 }
adam@1347	3720
adam@1347	3721 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3722 return pb.data;
adam@1347	3723 }
adam@1347	3724
adam@1471	3725 static char *old_headers(uw_context ctx) {
adam@1471	3726 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3727 return NULL;
adam@1471	3728 else {
adam@1471	3729 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3730
adam@1471	3731 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3732 return NULL;
adam@1471	3733 else {
adam@1471	3734 s = strchr(s+15, '\n');
adam@1471	3735 if (s == NULL)
adam@1471	3736 return NULL;
adam@1471	3737 else
adam@1471	3738 return uw_strdup(ctx, s+1);
adam@1471	3739 }
adam@1471	3740 }
adam@1471	3741 }
adam@1471	3742
adamc@741	3743 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3744 cleanup *cl;
adamc@741	3745 int len;
adam@1471	3746 char *oldh;
adamc@741	3747
adam@1451	3748 if (!ctx->allowed_to_return_indirectly)
adam@1451	3749 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3750
adamc@1065	3751 ctx->returning_indirectly = 1;
adam@1471	3752 oldh = old_headers(ctx);
adam@1369	3753 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3754 uw_buffer_reset(&ctx->page);
adamc@741	3755
adamc@856	3756 uw_write_header(ctx, on_success);
adamc@856	3757 uw_write_header(ctx, "Content-Type: ");
adamc@741	3758 uw_write_header(ctx, mimeType);
adam@1934	3759 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369	3760 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3761 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3762 ctx->outHeaders.front += len;
adamc@1066	3763 uw_write_header(ctx, "\r\n");
adam@1471	3764 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3765
adam@1369	3766 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3767
adamc@741	3768 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3769 cl->func(cl->arg);
adamc@741	3770
adamc@741	3771 ctx->cleanup_front = ctx->cleanup;
adamc@741	3772
adamc@1065	3773 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3774 }
adamc@1065	3775
adam@1932	3776 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932	3777 cleanup *cl;
adam@1932	3778 int len;
adam@1932	3779 char *oldh;
adam@1932	3780
adam@1932	3781 if (!ctx->allowed_to_return_indirectly)
adam@1932	3782 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932	3783
adam@1932	3784 ctx->returning_indirectly = 1;
adam@1932	3785 oldh = old_headers(ctx);
adam@1932	3786 uw_buffer_reset(&ctx->outHeaders);
adam@1932	3787
adam@1932	3788 uw_write_header(ctx, on_success);
adam@1932	3789 uw_write_header(ctx, "Content-Type: ");
adam@1932	3790 uw_write_header(ctx, mimeType);
adam@1934	3791 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932	3792 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932	3793 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932	3794 ctx->outHeaders.front += len;
adam@1932	3795 uw_write_header(ctx, "\r\n");
adam@1932	3796 if (oldh) uw_write_header(ctx, oldh);
adam@1932	3797
adam@1932	3798 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932	3799 cl->func(cl->arg);
adam@1932	3800
adam@1932	3801 ctx->cleanup_front = ctx->cleanup;
adam@1932	3802
adam@1932	3803 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932	3804 }
adam@1932	3805
adamc@1065	3806 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3807 cleanup *cl;
adamc@1066	3808 char *s;
adam@1471	3809 char *oldh;
adamc@1065	3810
adam@1451	3811 if (!ctx->allowed_to_return_indirectly)
adam@1451	3812 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3813
adamc@1065	3814 ctx->returning_indirectly = 1;
adam@1471	3815 oldh = old_headers(ctx);
adam@1369	3816 uw_buffer_reset(&ctx->page);
adam@1369	3817 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3818 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3819 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3820 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3821
adam@1409	3822 if (on_success[0])
adam@1409	3823 uw_write_header(ctx, on_redirect);
adam@1409	3824 else
adam@1409	3825 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3826 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3827 if (s) {
adamc@1066	3828 char *s2;
adam@1409	3829 if (s[0] == '\n') ++s;
adam@1409	3830 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3831 *s2 = 0;
adamc@1066	3832 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3833 uw_write_header(ctx, s);
adamc@1066	3834 uw_write_header(ctx, "\n");
adamc@1066	3835 }
adamc@1066	3836 }
adamc@1066	3837 }
adamc@1066	3838
adamc@1065	3839 uw_write_header(ctx, "Location: ");
adamc@1065	3840 uw_write_header(ctx, url);
adamc@1065	3841 uw_write_header(ctx, "\r\n\r\n");
adam@1471	3842 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	3843
adamc@1065	3844 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3845 cl->func(cl->arg);
adamc@1065	3846
adamc@1065	3847 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3848
adamc@1065	3849 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3850 }
adamc@874	3851
adamc@874	3852 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	3853 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	3854
adamc@874	3855 for (; *s; ++s) {
adamc@874	3856 if (s[0] == '\'') {
adamc@874	3857 *r++ = '\'';
adamc@874	3858 for (++s; *s; ++s) {
adamc@874	3859 if (s[0] == '\'') {
adamc@874	3860 *r++ = '\'';
adamc@874	3861 break;
adamc@874	3862 } else if (s[0] == '\\') {
adam@1467	3863 *r++ = '\\';
adam@1467	3864 *r++ = s[1];
adam@1467	3865 ++s;
adamc@874	3866 } else
adamc@874	3867 *r++ = s[0];
adamc@874	3868 }
adamc@874	3869 if (*s == 0) break;
adam@1467	3870 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	3871 s += 3;
adamc@874	3872 else
adamc@874	3873 *r++ = s[0];
adamc@874	3874 }
adamc@874	3875
adam@1467	3876 *r = 0;
adam@1467	3877 return ret;
adamc@874	3878 }
adamc@874	3879
adamc@922	3880 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3881 va_list ap;
adamc@922	3882 size_t len = 1;
adamc@922	3883 char s, r, *s2;
adamc@922	3884
adamc@922	3885 va_start(ap, ctx);
adamc@922	3886 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3887 len += strlen(s);
adamc@922	3888 va_end(ap);
adamc@922	3889
adamc@922	3890 r = uw_malloc(ctx, len);
adamc@922	3891 va_start(ap, ctx);
adamc@922	3892 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3893 while (*s)
adamc@922	3894 s2++ = s++;
adamc@922	3895 va_end(ap);
adamc@922	3896 *s2 = 0;
adamc@922	3897
adamc@922	3898 return r;
adamc@922	3899 }
adamc@1006	3900
adam@1365	3901 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	3902
adamc@1006	3903 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	3904 uw_Basis_time r = { time(NULL) };
adam@1365	3905 return r;
adamc@1006	3906 }
adamc@1061	3907
adam@1369	3908 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	3909 tm.seconds += n;
adam@1365	3910 return tm;
adamc@1138	3911 }
adamc@1138	3912
adam@1514	3913 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	3914 return difftime(tm2.seconds, tm1.seconds);
adam@1514	3915 }
adam@1514	3916
adam@1685	3917 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	3918 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	3919 }
adam@1685	3920
adam@1685	3921 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	3922 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	3923 }
adam@1685	3924
adam@1514	3925 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	3926 return tm.seconds;
adam@1514	3927 }
adam@1514	3928
adamc@1061	3929 void uw_get_global(uw_context ctx, char name) {
adamc@1061	3930 int i;
adamc@1061	3931
adamc@1061	3932 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3933 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	3934 return ctx->globals[i].data;
adamc@1061	3935
adamc@1061	3936 return NULL;
adamc@1061	3937 }
adamc@1061	3938
adamc@1113	3939 size_t uw_globals_max = SIZE_MAX;
adamc@1113	3940
adamc@1061	3941 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	3942 int i;
adamc@1061	3943
adamc@1061	3944 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3945 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	3946 if (ctx->globals[i].free)
adamc@1061	3947 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	3948 ctx->globals[i].data = data;
adamc@1061	3949 ctx->globals[i].free = free;
adamc@1061	3950 return;
adamc@1061	3951 }
adamc@1089	3952
adamc@1113	3953 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	3954 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	3955
adamc@1061	3956 ++ctx->n_globals;
adamc@1061	3957 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	3958 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	3959 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	3960 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	3961 }
adamc@1061	3962
adamc@1061	3963 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	3964 return !!isalnum((int)c);
adamc@1061	3965 }
adamc@1061	3966
adamc@1061	3967 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	3968 return !!isalpha((int)c);
adamc@1061	3969 }
adamc@1061	3970
adamc@1061	3971 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	3972 return !!isblank((int)c);
adamc@1061	3973 }
adamc@1061	3974
adamc@1061	3975 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	3976 return !!iscntrl((int)c);
adamc@1061	3977 }
adamc@1061	3978
adamc@1061	3979 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3980 return !!isdigit((int)c);
adamc@1061	3981 }
adamc@1061	3982
adamc@1061	3983 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	3984 return !!isgraph((int)c);
adamc@1061	3985 }
adamc@1061	3986
adamc@1061	3987 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3988 return !!islower((int)c);
adamc@1061	3989 }
adamc@1061	3990
adamc@1061	3991 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	3992 return !!isprint((int)c);
adamc@1061	3993 }
adamc@1061	3994
adamc@1061	3995 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	3996 return !!ispunct((int)c);
adamc@1061	3997 }
adamc@1061	3998
adamc@1061	3999 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	4000 return !!isspace((int)c);
adamc@1061	4001 }
adamc@1063	4002
adamc@1061	4003 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4004 return !!isupper((int)c);
adamc@1061	4005 }
adamc@1061	4006
adamc@1061	4007 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4008 return !!isxdigit((int)c);
adamc@1061	4009 }
adamc@1061	4010
adamc@1061	4011 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4012 return tolower((int)c);
adamc@1061	4013 }
adamc@1061	4014
adamc@1061	4015 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4016 return toupper((int)c);
adamc@1061	4017 }
adamc@1066	4018
adamc@1128	4019 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	4020 return (unsigned char)c;
adamc@1128	4021 }
adamc@1128	4022
adamc@1128	4023 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	4024 return n;
adamc@1128	4025 }
adamc@1128	4026
adamc@1066	4027 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	4028 return ctx->current_url;
adamc@1066	4029 }
adamc@1066	4030
adamc@1066	4031 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	4032 ctx->current_url = s;
adamc@1066	4033 }
adamc@1114	4034
adamc@1114	4035 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	4036 ctx->deadline = n;
adamc@1114	4037 }
adamc@1114	4038
adamc@1114	4039 void uw_check_deadline(uw_context ctx) {
adamc@1114	4040 if (uw_time > ctx->deadline)
adamc@1114	4041 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	4042 }
adamc@1115	4043
adamc@1115	4044 size_t uw_database_max = SIZE_MAX;
adamc@1120	4045
adam@1389	4046 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@1389	4047 fprintf(stderr, "%s\n", s);
adam@1389	4048 return 0;
adam@1389	4049 }
adam@1389	4050
adamc@1120	4051 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
adam@1334	4052 if (ctx->log_debug)
adam@1334	4053 ctx->log_debug(ctx->logger_data, "%s\n", s);
adam@1334	4054 else
adam@1334	4055 fprintf(stderr, "%s\n", s);
adamc@1120	4056 return uw_unit_v;
adamc@1120	4057 }
adamc@1250	4058
adam@1933	4059 static pthread_mutex_t rand_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@1933	4060
adamc@1250	4061 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@1486	4062 uw_Basis_int ret;
adam@1933	4063 pthread_mutex_lock(&rand_mutex);
adam@1486	4064 int r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@1933	4065 pthread_mutex_unlock(&rand_mutex);
adam@1486	4066
adam@1486	4067 if (r)
adam@1486	4068 return abs(ret);
adam@1486	4069 else
adam@1486	4070 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	4071 }
adam@1347	4072
adam@1347	4073 void uw_noPostBody(uw_context ctx) {
adam@1347	4074 ctx->hasPostBody = 0;
adam@1347	4075 }
adam@1347	4076
adam@1347	4077 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	4078 ctx->hasPostBody = 1;
adam@1347	4079 ctx->postBody = pb;
adam@1347	4080 }
adam@1347	4081
adam@1347	4082 int uw_hasPostBody(uw_context ctx) {
adam@1347	4083 return ctx->hasPostBody;
adam@1347	4084 }
adam@1347	4085
adam@1386	4086 void uw_isPost(uw_context ctx) {
adam@1386	4087 ctx->isPost = 1;
adam@1386	4088 }
adam@1386	4089
adam@1386	4090 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4091 return ctx->isPost;
adam@1386	4092 }
adam@1386	4093
adam@1485	4094 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4095 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4096 }
adam@1485	4097
adam@1370	4098 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4099 ctx->queryString = s;
adam@1370	4100 }
adam@1370	4101
adam@1370	4102 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4103 return ctx->queryString;
adam@1370	4104 }
adam@1370	4105
adam@1347	4106 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4107 if (ctx->hasPostBody)
adam@1347	4108 return ctx->postBody;
adam@1347	4109 else
adam@1347	4110 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4111 }
adam@1349	4112
adam@1349	4113 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4114 int r = setjmp(ctx->jmp_buf);
adam@1349	4115
adam@1349	4116 if (r == 0) {
adam@1936	4117 uw_ensure_transaction(ctx);
adam@1418	4118
adam@1349	4119 callback(ctx);
adam@1349	4120 }
adam@1349	4121
adam@1349	4122 return r;
adam@1349	4123 }
adam@1360	4124
adam@1360	4125 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4126 char buf[14];
adam@1397	4127 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4128 }
adam@1365	4129
adam@1365	4130 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4131 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	4132 }
adam@1365	4133
adam@1365	4134 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4135 return !!(t1.seconds < t2.seconds \|\| t1.microseconds < t2.microseconds);
adam@1365	4136 }
adam@1365	4137
adam@1365	4138 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4139 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4140 }
adam@1365	4141
adam@1372	4142 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4143 struct tm stm = {};
adam@1375	4144 char *end = strchr(s, 0);
adam@1449	4145 stm.tm_isdst = -1;
adam@1375	4146
adam@1632	4147 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4148 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4149
kkallio@1448	4150 r->seconds = timegm(&stm);
adam@1373	4151 r->microseconds = 0;
adam@1373	4152
adam@1373	4153 return r;
adam@1374	4154 }
adam@1374	4155 else
adam@1373	4156 return NULL;
adam@1372	4157 }
adam@1407	4158
adam@1407	4159 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4160 int r = setjmp(ctx->jmp_buf);
adam@1407	4161
adam@1407	4162 if (ctx->app->on_error) {
adam@1407	4163 if (r == 0) {
adam@1936	4164 uw_ensure_transaction(ctx);
adam@1407	4165
adam@1409	4166 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4167 if (on_success[0])
adam@1409	4168 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4169 else
adam@1409	4170 uw_write_header(ctx, "Status: ");
adam@1409	4171 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919	4172 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1407	4173 uw_write(ctx, begin_xhtml);
adam@1407	4174 ctx->app->on_error(ctx, msg);
adam@1407	4175 uw_write(ctx, "</html>");
adam@1407	4176 }
adam@1407	4177
adam@1407	4178 return r;
adam@1407	4179 } else
adam@1407	4180 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4181 }
adam@1451	4182
adam@1451	4183 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4184 ctx->allowed_to_return_indirectly = 1;
adam@1451	4185 }
adam@1483	4186
adam@1556	4187 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4188 int len;
adam@1703	4189 char *r;
adam@1703	4190
adam@1703	4191 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4192 r = ctx->heap.front;
adam@1703	4193 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4194 ctx->heap.front += len+1;
adam@1703	4195 return r;
adam@1556	4196 }
adam@1571	4197
adam@1571	4198 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4199 return n;
adam@1571	4200 }
adam@1571	4201
adam@1571	4202 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4203 return ceil(n);
adam@1571	4204 }
adam@1571	4205
adam@1571	4206 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4207 return trunc(n);
adam@1571	4208 }
adam@1571	4209
adam@1571	4210 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4211 return round(n);
adam@1571	4212 }
adam@1755	4213
adam@1755	4214 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755	4215 char *p;
adam@1755	4216
adam@1755	4217 for (p = s; *p; ++p) {
adam@1755	4218 char c = *p;
adam@1801	4219 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755	4220 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4221 }
adam@1755	4222
adam@1755	4223 return s;
adam@1755	4224 }
adam@1755	4225
adam@1755	4226 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4227 char *p;
adam@1755	4228
adam@1755	4229 for (p = s; *p; ++p) {
adam@1755	4230 char c = *p;
adam@1801	4231 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4232 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4233 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4234 }
adam@1755	4235
adam@1755	4236 return s;
adam@1755	4237 }
adam@1755	4238
adam@1755	4239 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4240 char *p;
adam@1755	4241
adam@1755	4242 if (!*s)
adam@1755	4243 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4244
adam@1801	4245 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4246 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4247
adam@1755	4248 for (p = s; *p; ++p) {
adam@1755	4249 char c = *p;
adam@1801	4250 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4251 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4252 }
adam@1755	4253
adam@1755	4254 return s;
adam@1755	4255 }
adam@1787	4256
adam@1787	4257 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4258 return f.name;
adam@1787	4259 }
adam@1787	4260
adam@1787	4261 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4262 return f.value;
adam@1787	4263 }
adam@1787	4264
adam@1787	4265 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4266 return f.remaining;
adam@1787	4267 }
adam@1787	4268
adam@1787	4269 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4270 char *unurl;
adam@1787	4271 uw_Basis_postField *f;
adam@1787	4272
adam@1788	4273 if (!ctx->hasPostBody)
adam@1788	4274 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4275
adam@1788	4276 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4277 return NULL;
adam@1787	4278
adam@1787	4279 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4280 unurl = s;
adam@1787	4281 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4282 s = strchr(s, 0);
adam@1788	4283 if (!s)
adam@1788	4284 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4285 ++s;
adam@1788	4286 unurl = s;
adam@1788	4287 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4288 s = strchr(s, 0);
adam@1788	4289 if (!s)
adam@1788	4290 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4291 f->remaining = s+1;
adam@1787	4292
adam@1787	4293 return f;
adam@1787	4294 }

Mercurial > urweb

annotate src/c/urweb.c @ 1954:1802eb00a0ae