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

annotate src/c/urweb.c @ 1809:b8fa7441e637

Add list of files to new error message

author	Adam Chlipala <adam@chlipala.net>
date	Sat, 18 Aug 2012 13:57:48 -0400
parents	5c51ae0d643b
children	690638bd9fef

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

Mercurial > urweb

annotate src/c/urweb.c @ 1809:b8fa7441e637