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

annotate src/c/urweb.c @ 1788:f57983ba2a36

Get regular forms working again

author	Adam Chlipala <adam@chlipala.net>
date	Sat, 21 Jul 2012 15:34:07 -0400
parents	69daa6d70299
children	3d922a28370b

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

Mercurial > urweb

annotate src/c/urweb.c @ 1788:f57983ba2a36