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

annotate src/c/urweb.c @ 2070:382911d72e63

Check realloc's return code to prevent segfault on out of memory condition (Part 3)

author	Sergey Mironov <grrwlf@gmail.com>
date	Tue, 02 Sep 2014 17:37:22 +0000
parents	a9159911c3ba
children	d77b0665ba7c ef766ef6e242

rev	line source
adamc@1268	1 #include "config.h"
adamc@1268	2
adamc@117	3 #include <stdlib.h>
adamc@102	4 #include <stdio.h>
adamc@117	5 #include <string.h>
adamc@457	6 #include <strings.h>
adamc@106	7 #include <ctype.h>
adamc@167	8 #include <setjmp.h>
adamc@167	9 #include <stdarg.h>
adamc@682	10 #include <assert.h>
adamc@741	11 #include <ctype.h>
adamc@1114	12 #include <limits.h>
adamc@1113	13 #include <stdint.h>
adamc@1094	14 #include <sys/types.h>
adamc@1094	15 #include <sys/socket.h>
adam@1397	16 #include <openssl/des.h>
adam@1486	17 #include <openssl/rand.h>
adam@1374	18 #include <time.h>
adam@1571	19 #include <math.h>
adamc@102	20
adamc@667	21 #include <pthread.h>
adamc@667	22
adamc@102	23 #include "types.h"
adamc@102	24
adam@1431	25 uw_unit uw_unit_v = 0;
adamc@102	26
adamc@667	27
adamc@667	28 // Socket extras
adamc@667	29
adamc@863	30 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667	31 while (len > 0) {
adamc@856	32 ssize_t n = send(sock, buf, len, 0);
adamc@856	33
adamc@856	34 if (n < 0)
adamc@856	35 return n;
adamc@856	36
adamc@856	37 buf += n;
adamc@856	38 len -= n;
adamc@856	39 }
adamc@856	40
adamc@856	41 return 0;
adamc@856	42 }
adamc@856	43
adamc@856	44 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856	45 while (len > 0) {
adamc@856	46 ssize_t n = write(fd, buf, len);
adamc@667	47
adamc@667	48 if (n < 0)
adamc@667	49 return n;
adamc@667	50
adamc@667	51 buf += n;
adamc@667	52 len -= n;
adamc@667	53 }
adamc@667	54
adamc@667	55 return 0;
adamc@667	56 }
adamc@667	57
adamc@667	58
adamc@667	59 // Buffers
adamc@667	60
adam@1369	61 void uw_buffer_init(size_t max, uw_buffer *b, size_t s) {
adamc@1113	62 b->max = max;
adamc@667	63 b->front = b->start = malloc(s);
adamc@667	64 b->back = b->front + s;
adamc@667	65 }
adamc@667	66
adam@1369	67 void uw_buffer_free(uw_buffer *b) {
adamc@667	68 free(b->start);
adamc@667	69 }
adamc@667	70
adam@1369	71 void uw_buffer_reset(uw_buffer *b) {
adamc@667	72 b->front = b->start;
adamc@667	73 }
adamc@667	74
adam@1369	75 int uw_buffer_check(uw_buffer *b, size_t extra) {
adamc@667	76 if (b->back - b->front < extra) {
adamc@667	77 size_t desired = b->front - b->start + extra, next;
adamc@667	78 char *new_heap;
adamc@667	79
adamc@667	80 next = b->back - b->start;
adamc@667	81 if (next == 0)
adamc@667	82 next = 1;
adamc@667	83 for (; next < desired; next *= 2);
adamc@667	84
adamc@1134	85 if (next > b->max) {
adamc@1113	86 if (desired <= b->max)
adamc@1113	87 next = desired;
adamc@1113	88 else
adamc@1113	89 return 1;
adamc@1134	90 }
adamc@1113	91
adamc@667	92 new_heap = realloc(b->start, next);
adamc@667	93 b->front = new_heap + (b->front - b->start);
adamc@667	94 b->back = new_heap + next;
adamc@667	95 b->start = new_heap;
adamc@667	96 }
adamc@1113	97
adamc@1113	98 return 0;
adamc@1113	99 }
adamc@1113	100
adamc@1113	101 __attribute__((noreturn)) void uw_error(uw_context, failure_kind, const char *, ...);
adamc@1113	102
adam@1369	103 static void ctx_uw_buffer_check(uw_context ctx, const char kind, uw_buffer b, size_t extra) {
adam@1369	104 if (uw_buffer_check(b, extra))
adamc@1113	105 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@667	106 }
adamc@667	107
adam@1369	108 size_t uw_buffer_used(uw_buffer *b) {
adamc@667	109 return b->front - b->start;
adamc@667	110 }
adamc@667	111
adam@1369	112 size_t uw_buffer_avail(uw_buffer *b) {
adamc@667	113 return b->back - b->start;
adamc@667	114 }
adamc@667	115
adam@1369	116 int uw_buffer_append(uw_buffer b, const char s, size_t len) {
adam@1369	117 if (uw_buffer_check(b, len+1))
adamc@1113	118 return 1;
adamc@1113	119
adamc@1113	120 memcpy(b->front, s, len);
adamc@1113	121 b->front += len;
adamc@1113	122 *b->front = 0;
adamc@1113	123
adamc@1113	124 return 0;
adamc@1113	125 }
adamc@1113	126
adam@1369	127 static void ctx_uw_buffer_append(uw_context ctx, const char kind, uw_buffer b, const char *s, size_t len) {
adam@1369	128 ctx_uw_buffer_check(ctx, kind, b, len+1);
adamc@1113	129
adamc@668	130 memcpy(b->front, s, len);
adamc@668	131 b->front += len;
adamc@672	132 *b->front = 0;
adamc@668	133 }
adamc@667	134
adamc@668	135
adamc@672	136 // Persistent state types
adamc@667	137
adamc@667	138 typedef enum { UNUSED, USED } usage;
adamc@667	139
adamc@667	140 typedef struct client {
adamc@682	141 unsigned id;
adamc@667	142 usage mode;
adamc@682	143 int pass;
adamc@682	144 struct client *next;
adamc@689	145 pthread_mutex_t lock, pull_lock;
adam@1369	146 uw_buffer msgs;
adamc@682	147 int sock;
adamc@863	148 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	149 int (*close)(int fd);
adamc@682	150 time_t last_contact;
adamc@682	151 unsigned n_channels;
adamc@685	152 unsigned refcount;
adamc@1121	153 void *data;
adamc@667	154 } client;
adamc@667	155
adamc@672	156
adamc@672	157 // Persistent client state
adamc@672	158
adamc@682	159 static client *clients, clients_free, *clients_used;
adamc@682	160 static unsigned n_clients;
adamc@667	161
adam@1707	162 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@1113	163 size_t uw_messages_max = SIZE_MAX;
adamc@1113	164 size_t uw_clients_max = SIZE_MAX;
adamc@1113	165
adamc@1121	166 void *uw_init_client_data();
adamc@1121	167 void uw_free_client_data(void *);
adamc@1121	168 void uw_copy_client_data(void dst, void src);
adamc@1121	169
adamc@682	170 static client *new_client() {
adamc@667	171 client *c;
adamc@667	172
adamc@667	173 pthread_mutex_lock(&clients_mutex);
adamc@667	174
adamc@667	175 if (clients_free) {
adamc@667	176 c = clients_free;
adamc@682	177 clients_free = clients_free->next;
adamc@667	178 }
adam@1672	179 else if (n_clients >= uw_clients_max) {
adam@1672	180 pthread_mutex_unlock(&clients_mutex);
adamc@1113	181 return NULL;
adam@1672	182 } else {
adamc@667	183 ++n_clients;
adamc@667	184 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	185 c = malloc(sizeof(client));
adamc@667	186 c->id = n_clients-1;
adamc@682	187 pthread_mutex_init(&c->lock, NULL);
adamc@689	188 pthread_mutex_init(&c->pull_lock, NULL);
adam@1369	189 uw_buffer_init(uw_messages_max, &c->msgs, 0);
adamc@667	190 clients[n_clients-1] = c;
adamc@667	191 }
adamc@667	192
adamc@682	193 pthread_mutex_lock(&c->lock);
adamc@667	194 c->mode = USED;
adamc@682	195 c->pass = rand();
adamc@682	196 c->sock = -1;
adamc@682	197 c->last_contact = time(NULL);
adam@1369	198 uw_buffer_reset(&c->msgs);
adamc@682	199 c->n_channels = 0;
adamc@685	200 c->refcount = 0;
adamc@1121	201 c->data = uw_init_client_data();
adamc@682	202 pthread_mutex_unlock(&c->lock);
adamc@682	203
adamc@682	204 c->next = clients_used;
adamc@682	205 clients_used = c;
adamc@667	206
adamc@667	207 pthread_mutex_unlock(&clients_mutex);
adamc@667	208
adamc@667	209 return c;
adamc@667	210 }
adamc@667	211
adamc@685	212 static void use_client(client *c) {
adamc@685	213 pthread_mutex_lock(&c->lock);
adamc@685	214 ++c->refcount;
adamc@685	215 pthread_mutex_unlock(&c->lock);
adamc@689	216 pthread_mutex_lock(&c->pull_lock);
adamc@685	217 }
adamc@685	218
adamc@685	219 static void release_client(client *c) {
adamc@689	220 pthread_mutex_unlock(&c->pull_lock);
adamc@685	221 pthread_mutex_lock(&c->lock);
adamc@685	222 --c->refcount;
adamc@685	223 pthread_mutex_unlock(&c->lock);
adamc@685	224 }
adamc@685	225
adamc@856	226 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adam@1707	227 static pthread_t pruning_thread;
adam@1707	228 static int pruning_thread_initialized = 0;
adamc@667	229
adamc@682	230 static client *find_client(unsigned id) {
adamc@667	231 client *c;
adam@1708	232 int i_am_pruner = pruning_thread_initialized && pthread_equal(pruning_thread, pthread_self());
adam@1708	233
adam@1708	234 if (!i_am_pruner) pthread_mutex_lock(&clients_mutex);
adamc@667	235
adamc@667	236 if (id >= n_clients) {
adam@1708	237 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	238 return NULL;
adamc@667	239 }
adamc@667	240
adamc@667	241 c = clients[id];
adamc@667	242
adam@1708	243 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	244 return c;
adamc@668	245 }
adamc@668	246
adamc@856	247 static char *on_success = "HTTP/1.1 200 OK\r\n";
adam@1409	248 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	249
adamc@856	250 void uw_set_on_success(char *s) {
adamc@856	251 on_success = s;
adamc@856	252 }
adamc@856	253
adam@1552	254 static void chastise(int (send)(int sockfd, const void buf, ssize_t len), int sock) {
adam@1552	255 send(sock, on_success, strlen(on_success));
adam@1552	256 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1552	257 send(sock, "R", 1);
adam@1552	258 close(sock);
adam@1552	259 }
adam@1552	260
adamc@863	261 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	262 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	263 int (*close)(int fd),
adamc@864	264 void *logger_data, uw_logger log_error) {
adamc@682	265 client *c = find_client(id);
adamc@668	266
adamc@668	267 if (c == NULL) {
adam@1552	268 chastise(send, sock);
adamc@864	269 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	270 return;
adamc@667	271 }
adamc@667	272
adamc@682	273 pthread_mutex_lock(&c->lock);
adamc@671	274
adamc@682	275 if (c->mode != USED) {
adamc@682	276 pthread_mutex_unlock(&c->lock);
adam@1552	277 chastise(send, sock);
adamc@864	278 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	279 return;
adamc@667	280 }
adamc@667	281
adamc@682	282 if (pass != c->pass) {
adamc@682	283 pthread_mutex_unlock(&c->lock);
adam@1552	284 chastise(send, sock);
adamc@864	285 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	286 return;
adamc@667	287 }
adamc@667	288
adamc@682	289 if (c->sock != -1) {
adamc@863	290 c->close(c->sock);
adamc@682	291 c->sock = -1;
adamc@682	292 }
adamc@667	293
adamc@682	294 c->last_contact = time(NULL);
adamc@682	295
adam@1369	296 if (uw_buffer_used(&c->msgs) > 0) {
adamc@863	297 send(sock, on_success, strlen(on_success));
adamc@863	298 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1369	299 send(sock, c->msgs.start, uw_buffer_used(&c->msgs));
adam@1369	300 uw_buffer_reset(&c->msgs);
adamc@667	301 close(sock);
adamc@667	302 }
adamc@863	303 else {
adamc@682	304 c->sock = sock;
adamc@863	305 c->send = send;
adamc@863	306 c->close = close;
adamc@863	307 }
adamc@667	308
adamc@682	309 pthread_mutex_unlock(&c->lock);
adamc@667	310 }
adamc@667	311
adamc@682	312 static void free_client(client *c) {
adamc@682	313 c->mode = UNUSED;
adamc@682	314 c->pass = -1;
adamc@667	315
adamc@682	316 c->next = clients_free;
adamc@682	317 clients_free = c;
adamc@667	318 }
adamc@667	319
adamc@682	320 static uw_Basis_channel new_channel(client *c) {
adamc@682	321 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	322 return ch;
adamc@668	323 }
adamc@668	324
adam@1447	325 static void client_send(client c, uw_buffer msg, const char *script, int script_len) {
adamc@685	326 pthread_mutex_lock(&c->lock);
adamc@671	327
adamc@682	328 if (c->sock != -1) {
adamc@863	329 c->send(c->sock, on_success, strlen(on_success));
adamc@863	330 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1447	331 if (script_len > 0) {
adam@1447	332 c->send(c->sock, "E\n", 2);
adam@1447	333 c->send(c->sock, script, script_len);
adam@1447	334 c->send(c->sock, "\n", 1);
adam@1447	335 }
adam@1369	336 c->send(c->sock, msg->start, uw_buffer_used(msg));
adamc@863	337 c->close(c->sock);
adamc@682	338 c->sock = -1;
adam@1665	339 } else if (uw_buffer_append(&c->msgs, msg->start, uw_buffer_used(msg)))
adamc@1113	340 fprintf(stderr, "Client message buffer size exceeded");
adamc@671	341
adamc@685	342 pthread_mutex_unlock(&c->lock);
adamc@668	343 }
adamc@668	344
adamc@668	345
adamc@668	346 // Global entry points
adamc@668	347
adamc@1164	348 extern void uw_global_custom();
adamc@1104	349 extern void uw_init_crypto();
adamc@1104	350
adamc@668	351 void uw_global_init() {
adamc@668	352 srand(time(NULL) ^ getpid());
adamc@668	353
adamc@668	354 clients = malloc(0);
adamc@1104	355
adamc@1164	356 uw_global_custom();
adamc@1104	357 uw_init_crypto();
adamc@1094	358 }
adamc@1094	359
adamc@1094	360 void uw_app_init(uw_app *app) {
adamc@1094	361 app->client_init();
adamc@668	362 }
adamc@668	363
adam@1332	364 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114	365
adamc@668	366
adamc@667	367 // Single-request state
adamc@667	368
adamc@323	369 typedef struct regions {
adamc@323	370 struct regions *next;
adamc@323	371 } regions;
adamc@323	372
adamc@425	373 typedef struct {
adamc@425	374 void (func)(void);
adamc@425	375 void *arg;
adamc@425	376 } cleanup;
adamc@425	377
adamc@671	378 typedef struct {
adamc@682	379 unsigned client;
adam@1369	380 uw_buffer msgs;
adamc@682	381 } delta;
adamc@671	382
adamc@737	383 typedef enum {
adamc@759	384 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	385 } input_kind;
adamc@737	386
adamc@756	387 typedef struct input {
adamc@737	388 input_kind kind;
adamc@737	389 union {
adamc@737	390 char *normal;
adamc@739	391 uw_Basis_file file;
adamc@756	392 struct {
adamc@759	393 struct input fields, parent;
adamc@756	394 } subform;
adamc@759	395 struct {
adamc@759	396 struct input entries, parent;
adamc@759	397 } subforms;
adamc@759	398 struct {
adamc@759	399 struct input fields, next, *parent;
adamc@759	400 } entry;
adamc@737	401 } data;
adamc@737	402 } input;
adamc@737	403
adamc@771	404 typedef struct {
adamc@771	405 void *data;
adam@1327	406 uw_callback commit, rollback;
adam@1327	407 uw_callback_with_retry free;
adamc@771	408 } transactional;
adamc@771	409
adamc@1061	410 typedef struct {
adamc@1061	411 char *name;
adamc@1061	412 void *data;
adamc@1061	413 void (free)(void);
adamc@1061	414 } global;
adamc@1061	415
adamc@311	416 struct uw_context {
adamc@1094	417 uw_app *app;
adam@1446	418 int id;
adamc@1094	419
adamc@854	420 char (get_header)(void , const char );
adamc@854	421 void *get_header_data;
adamc@457	422
adam@1799	423 char (get_env)(void , const char );
adam@1799	424 void *get_env_data;
adam@1799	425
adam@1369	426 uw_buffer outHeaders, page, heap, script;
adam@1451	427 int allowed_to_return_indirectly, returning_indirectly;
adamc@759	428 input inputs, subinputs, *cur_container;
adamc@1094	429 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	430
adam@1446	431 unsigned long long source_count;
adamc@562	432
adamc@272	433 void *db;
adam@1931	434 int transaction_started;
adamc@272	435
adamc@167	436 jmp_buf jmp_buf;
adamc@167	437
adamc@323	438 regions *regions;
adamc@323	439
adamc@425	440 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	441
adamc@1094	442 const char *script_header;
adamc@643	443
adam@2056	444 int needs_push, needs_sig, could_write_db, at_most_one_query;
adamc@693	445
adamc@682	446 size_t n_deltas, used_deltas;
adamc@682	447 delta *deltas;
adamc@671	448
adamc@682	449 client *client;
adamc@682	450
adamc@771	451 transactional *transactionals;
adamc@771	452 size_t n_transactionals, used_transactionals;
adamc@771	453
adamc@1061	454 global *globals;
adamc@1061	455 size_t n_globals;
adamc@1061	456
adamc@1066	457 char *current_url;
adamc@1066	458
adamc@1114	459 int deadline;
adamc@1114	460
adamc@1121	461 void *client_data;
adamc@1121	462
grrwlf@1997	463 uw_loggers *loggers;
adam@1334	464
adam@1386	465 int isPost, hasPostBody;
adam@1347	466 uw_Basis_postBody postBody;
adam@1370	467 uw_Basis_string queryString;
adam@1347	468
adam@1556	469 unsigned nextId;
adam@1556	470
adam@1782	471 int amInitializing;
adam@1782	472
adamc@167	473 char error_message[ERROR_BUF_LEN];
adam@1877	474
adam@1877	475 int usedSig, needsResig;
adam@1949	476
adam@1949	477 char *output_buffer;
adam@1949	478 size_t output_buffer_size;
adamc@117	479 };
adamc@117	480
adamc@1113	481 size_t uw_headers_max = SIZE_MAX;
adamc@1113	482 size_t uw_page_max = SIZE_MAX;
adamc@1113	483 size_t uw_heap_max = SIZE_MAX;
adamc@1113	484 size_t uw_script_max = SIZE_MAX;
adamc@1113	485
grrwlf@1997	486 uw_context uw_init(int id, uw_loggers *lg) {
adamc@311	487 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	488
adamc@1094	489 ctx->app = NULL;
adam@1446	490 ctx->id = id;
adamc@1094	491
adamc@854	492 ctx->get_header = NULL;
adamc@854	493 ctx->get_header_data = NULL;
adamc@457	494
adam@1799	495 ctx->get_env = NULL;
adam@1799	496 ctx->get_env_data = NULL;
adam@1799	497
adam@1413	498 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413	499 ctx->outHeaders.start[0] = 0;
adam@1413	500 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413	501 ctx->page.start[0] = 0;
adam@1451	502 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	503 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369	504 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667	505 ctx->script.start[0] = 0;
adamc@136	506
adamc@1094	507 ctx->inputs = malloc(0);
adamc@759	508 ctx->cur_container = NULL;
adamc@756	509 ctx->subinputs = malloc(0);
adamc@1094	510 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	511
adamc@272	512 ctx->db = NULL;
adam@1931	513 ctx->transaction_started = 0;
adamc@272	514
adamc@323	515 ctx->regions = NULL;
adamc@323	516
adamc@425	517 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	518
adamc@643	519 ctx->script_header = "";
adamc@693	520 ctx->needs_push = 0;
adamc@736	521 ctx->needs_sig = 0;
adam@1936	522 ctx->could_write_db = 1;
adam@2056	523 ctx->at_most_one_query = 0;
adamc@1104	524
adamc@565	525 ctx->source_count = 0;
adamc@562	526
adamc@682	527 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	528 ctx->deltas = malloc(0);
adamc@671	529
adamc@700	530 ctx->client = NULL;
adamc@700	531
adamc@700	532 ctx->error_message[0] = 0;
adamc@700	533
adamc@771	534 ctx->transactionals = malloc(0);
adamc@771	535 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	536
adamc@1061	537 ctx->globals = malloc(0);
adamc@1061	538 ctx->n_globals = 0;
adamc@1061	539
adamc@1066	540 ctx->current_url = "";
adamc@1066	541
adamc@1114	542 ctx->deadline = INT_MAX;
adamc@1114	543
adamc@1121	544 ctx->client_data = uw_init_client_data();
adamc@1121	545
grrwlf@1997	546 ctx->loggers = lg;
adam@1334	547
adam@1386	548 ctx->isPost = ctx->hasPostBody = 0;
adam@1347	549
adam@1370	550 ctx->queryString = NULL;
adam@1370	551
adam@1556	552 ctx->nextId = 0;
adam@1556	553
adam@1782	554 ctx->amInitializing = 0;
adam@1782	555
adam@1877	556 ctx->usedSig = 0;
adam@1877	557 ctx->needsResig = 0;
adam@1877	558
adam@1949	559 ctx->output_buffer = malloc(1);
adam@1949	560 ctx->output_buffer_size = 1;
adam@1949	561
adamc@117	562 return ctx;
adamc@106	563 }
adamc@106	564
adamc@1113	565 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	566
adamc@1121	567 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	568 return ctx->app;
adamc@1121	569 }
adamc@1121	570
adamc@1113	571 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	572 ctx->app = app;
adamc@1094	573
adamc@1105	574 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	575 if (app->inputs_len > uw_inputs_max)
adamc@1113	576 return 1;
adamc@1113	577
adamc@1094	578 ctx->sz_inputs = app->inputs_len;
adamc@1094	579 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	580 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	581 }
adamc@1134	582
adamc@1134	583 return 0;
adamc@1094	584 }
adamc@1094	585
adamc@1121	586 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	587 uw_copy_client_data(ctx->client_data, data);
adamc@1121	588 }
adamc@1121	589
adamc@311	590 void uw_set_db(uw_context ctx, void *db) {
adamc@272	591 ctx->db = db;
adamc@272	592 }
adamc@272	593
adamc@311	594 void *uw_get_db(uw_context ctx) {
adamc@272	595 return ctx->db;
adamc@272	596 }
adamc@272	597
grrwlf@1997	598
grrwlf@1997	599 uw_loggers* uw_get_loggers(struct uw_context *ctx) {
grrwlf@1997	600 return ctx->loggers;
grrwlf@1997	601 }
grrwlf@1997	602
adamc@311	603 void uw_free(uw_context ctx) {
adamc@671	604 size_t i;
adamc@671	605
adam@1369	606 uw_buffer_free(&ctx->outHeaders);
adam@1369	607 uw_buffer_free(&ctx->script);
adam@1369	608 uw_buffer_free(&ctx->page);
adam@1369	609 uw_buffer_free(&ctx->heap);
adamc@144	610 free(ctx->inputs);
adamc@756	611 free(ctx->subinputs);
adamc@425	612 free(ctx->cleanup);
adamc@771	613 free(ctx->transactionals);
adamc@1121	614 uw_free_client_data(ctx->client_data);
adamc@671	615
adamc@682	616 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	617 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	618 free(ctx->deltas);
adamc@671	619
adamc@1061	620 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	621 if (ctx->globals[i].free)
adamc@1089	622 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	623 free(ctx->globals);
adamc@1061	624
adam@1949	625 free(ctx->output_buffer);
adam@1949	626
adamc@136	627 free(ctx);
adamc@136	628 }
adamc@136	629
adamc@562	630 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	631 uw_buffer_reset(&ctx->outHeaders);
adam@1369	632 uw_buffer_reset(&ctx->script);
adamc@667	633 ctx->script.start[0] = 0;
adam@1369	634 uw_buffer_reset(&ctx->page);
adam@1451	635 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	636 uw_buffer_reset(&ctx->heap);
adamc@323	637 ctx->regions = NULL;
adamc@425	638 ctx->cleanup_front = ctx->cleanup;
adamc@682	639 ctx->used_deltas = 0;
adamc@682	640 ctx->client = NULL;
adamc@759	641 ctx->cur_container = NULL;
adamc@771	642 ctx->used_transactionals = 0;
adamc@1117	643 ctx->script_header = "";
adam@1370	644 ctx->queryString = NULL;
adam@1556	645 ctx->nextId = 0;
adam@1782	646 ctx->amInitializing = 0;
adam@1877	647 ctx->usedSig = 0;
adam@1877	648 ctx->needsResig = 0;
adamc@167	649 }
adamc@167	650
adamc@562	651 void uw_reset_keep_request(uw_context ctx) {
adamc@562	652 uw_reset_keep_error_message(ctx);
adamc@562	653 ctx->error_message[0] = 0;
adamc@167	654 }
adamc@167	655
adamc@311	656 void uw_reset(uw_context ctx) {
adamc@311	657 uw_reset_keep_request(ctx);
adamc@1105	658 if (ctx->app)
adamc@1105	659 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	660 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461	661 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adam@1943	662 ctx->transaction_started = 0;
adamc@144	663 }
adamc@144	664
adamc@311	665 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	666 int r = setjmp(ctx->jmp_buf);
adamc@272	667
adamc@1105	668 if (r == 0 && ctx->app)
adamc@1094	669 ctx->app->db_init(ctx);
adamc@272	670
adamc@272	671 return r;
adamc@272	672 }
adamc@272	673
adamc@1118	674 void uw_close(uw_context ctx) {
adamc@1118	675 ctx->app->db_close(ctx);
adamc@1118	676 }
adamc@1118	677
adam@1446	678 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	679 return ctx->get_header(ctx->get_header_data, h);
adam@1446	680 }
adam@1446	681
adamc@854	682 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	683 ctx->get_header = get_header;
adamc@854	684 ctx->get_header_data = get_header_data;
adamc@742	685 }
adamc@742	686
adam@1799	687 void uw_set_env(uw_context ctx, char (get_env)(void , const char ), void *get_env_data) {
adam@1799	688 ctx->get_env = get_env;
adam@1799	689 ctx->get_env_data = get_env_data;
adam@1799	690 }
adam@1799	691
adamc@801	692 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	693 va_list ap;
adamc@801	694 va_start(ap, fmt);
adamc@801	695
adamc@801	696 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	697 }
adamc@801	698
adamc@1131	699 int uw_has_error(uw_context ctx) {
adamc@1131	700 return ctx->error_message[0] != 0;
adamc@1131	701 }
adamc@1131	702
adamc@311	703 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	704 cleanup *cl;
adamc@425	705
adamc@167	706 va_list ap;
adamc@167	707 va_start(ap, fmt);
adamc@167	708
adamc@167	709 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	710
adamc@425	711 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	712 cl->func(cl->arg);
adamc@425	713
adamc@425	714 ctx->cleanup_front = ctx->cleanup;
adamc@425	715
adamc@190	716 longjmp(ctx->jmp_buf, fk);
adamc@167	717 }
adamc@167	718
adamc@1113	719 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	720
adamc@425	721 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	722 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	723 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	724 if (len == 0)
adamc@425	725 newLen = 1;
adamc@425	726 else
adamc@428	727 newLen = len * 2;
adamc@1113	728
adamc@1134	729 if (newLen > uw_cleanup_max) {
adamc@1113	730 if (len+1 <= uw_cleanup_max)
adamc@1113	731 newLen = uw_cleanup_max;
adamc@1113	732 else
adamc@1113	733 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	734 }
adamc@1113	735
adamc@470	736 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	737 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	738 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	739 }
adamc@425	740
adamc@425	741 ctx->cleanup_front->func = func;
adamc@425	742 ctx->cleanup_front->arg = arg;
adamc@425	743 ++ctx->cleanup_front;
adamc@425	744 }
adamc@425	745
adam@1444	746 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	747
adamc@682	748 void uw_login(uw_context ctx) {
adam@1942	749 char id_s, pass_s;
adam@1942	750
adam@1942	751 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adam@1942	752 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adam@1942	753 unsigned id = atoi(id_s);
adam@1942	754 int pass = atoi(pass_s);
adam@1942	755 client *c = find_client(id);
adam@1942	756
adam@1942	757 if (c == NULL)
adam@1942	758 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", uw_Basis_htmlifyString(ctx, id_s), uw_Basis_htmlifyString(ctx, pass_s));
adam@1942	759 else {
adamc@685	760 use_client(c);
adamc@682	761 ctx->client = c;
adam@1942	762
adam@1942	763 if (c->mode != USED)
adam@1942	764 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adam@1942	765 if (c->pass != pass)
adam@1942	766 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@864	767 }
adam@1942	768 } else if (ctx->needs_push) {
adam@1942	769 client *c = new_client();
adam@1942	770
adam@1942	771 if (c == NULL)
adam@1942	772 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adam@1942	773
adam@1942	774 use_client(c);
adam@1942	775 uw_copy_client_data(c->data, ctx->client_data);
adam@1942	776 ctx->client = c;
adamc@682	777 }
adamc@682	778 }
adamc@682	779
adamc@671	780 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	781 int r = setjmp(ctx->jmp_buf);
adamc@671	782
adam@1931	783 if (r == 0)
adam@1931	784 ctx->app->handle(ctx, path);
adam@1931	785
adam@1931	786 return r;
adam@1931	787 }
adam@1931	788
adam@1931	789 void uw_ensure_transaction(uw_context ctx) {
adam@2056	790 if (!ctx->transaction_started && !ctx->at_most_one_query) {
adam@1936	791 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adamc@671	792 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1931	793 ctx->transaction_started = 1;
adamc@671	794 }
adamc@671	795 }
adamc@671	796
adamc@772	797 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	798 if (ctx->client == NULL)
adamc@682	799 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	800
adamc@682	801 return ctx->client->id;
adamc@682	802 }
adamc@682	803
adamc@425	804 void uw_pop_cleanup(uw_context ctx) {
adamc@425	805 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	806 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	807
adamc@425	808 --ctx->cleanup_front;
adamc@425	809 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	810 }
adamc@425	811
adamc@311	812 char *uw_error_message(uw_context ctx) {
adamc@167	813 return ctx->error_message;
adamc@167	814 }
adamc@167	815
adamc@1115	816 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	817 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	818 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	819 }
adamc@1115	820
adamc@759	821 static input *INP(uw_context ctx) {
adamc@759	822 if (ctx->cur_container == NULL)
adamc@759	823 return ctx->inputs;
adamc@759	824 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	825 return ctx->cur_container->data.subform.fields;
adamc@759	826 else if (ctx->cur_container->kind == ENTRY)
adamc@759	827 return ctx->cur_container->data.entry.fields;
adamc@759	828 else
adamc@760	829 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	830 }
adamc@759	831
adamc@760	832 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	833 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	834 *ptr += new_start - old_start;
adamc@760	835 }
adamc@760	836
adamc@760	837 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	838 switch (x->kind) {
adamc@759	839 case SUBFORM:
adamc@760	840 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	841 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	842 break;
adamc@759	843 case SUBFORMS:
adamc@760	844 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	845 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	846 break;
adamc@759	847 case ENTRY:
adamc@760	848 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	849 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	850 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	851 break;
adamc@1134	852 default:
adamc@1134	853 break;
phurst@1981	854 }
adamc@759	855 }
adamc@759	856
adamc@1113	857 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	858
adamc@759	859 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	860 size_t i;
adamc@759	861 input *r;
adamc@759	862
adamc@759	863 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	864 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	865 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	866
adamc@759	867 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	868
adamc@760	869 if (ctx->subinputs != new_subinputs) {
adamc@760	870 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	871 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	872 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	873 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	874
adamc@760	875 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	876
adamc@760	877 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	878 ctx->subinputs = new_subinputs;
adamc@760	879 }
adamc@759	880 }
adamc@759	881
adamc@759	882 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	883
adamc@759	884 for (i = 0; i < len; ++i)
adam@1474	885 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	886
adamc@759	887 return r;
adamc@759	888 }
adamc@756	889
adamc@801	890 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	891 //printf("Input name %s\n", name);
adamc@1038	892
adamc@756	893 if (!strcasecmp(name, ".b")) {
adamc@1094	894 int n = ctx->app->input_num(value);
adamc@756	895 input *inps;
adamc@756	896
adamc@801	897 if (n < 0) {
adam@1444	898 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	899 return -1;
adamc@801	900 }
adamc@801	901
adamc@1094	902 if (n >= ctx->app->inputs_len) {
adam@1444	903 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	904 return -1;
adamc@801	905 }
adamc@756	906
adamc@1094	907 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	908
adamc@759	909 INP(ctx)[n].kind = SUBFORM;
adamc@759	910 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	911 INP(ctx)[n].data.subform.fields = inps;
adamc@759	912 ctx->cur_container = &INP(ctx)[n];
adamc@756	913 } else if (!strcasecmp(name, ".e")) {
adamc@756	914 input *tmp;
adamc@756	915
adamc@801	916 if (ctx->cur_container == NULL) {
adamc@801	917 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	918 return -1;
adamc@801	919 }
adamc@756	920
adamc@759	921 tmp = ctx->cur_container;
adamc@759	922 switch (tmp->kind) {
adamc@759	923 case SUBFORM:
adamc@759	924 ctx->cur_container = tmp->data.subform.parent;
adamc@759	925 tmp->data.subform.parent = NULL;
adamc@759	926 break;
adamc@759	927 case SUBFORMS:
adamc@759	928 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	929 tmp->data.subforms.parent = NULL;
adamc@759	930 break;
adamc@759	931 case ENTRY:
adamc@759	932 ctx->cur_container = tmp->data.entry.parent;
adamc@759	933 break;
adamc@759	934 default:
adamc@801	935 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	936 return -1;
adamc@759	937 }
adamc@759	938 } else if (!strcasecmp(name, ".s")) {
adamc@1094	939 int n = ctx->app->input_num(value);
adamc@759	940
adamc@801	941 if (n < 0) {
adam@1444	942 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	943 return -1;
adamc@801	944 }
adamc@801	945
adamc@1094	946 if (n >= ctx->app->inputs_len) {
adam@1444	947 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	948 return -1;
adamc@801	949 }
adamc@759	950
adamc@759	951 INP(ctx)[n].kind = SUBFORMS;
adamc@759	952 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	953 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	954 ctx->cur_container = &INP(ctx)[n];
adamc@759	955 } else if (!strcasecmp(name, ".i")) {
adamc@759	956 input *inps;
adamc@759	957
adamc@801	958 if (!ctx->cur_container) {
adamc@801	959 uw_set_error(ctx, "New entry without container");
adamc@801	960 return -1;
adamc@801	961 }
adamc@801	962
adamc@801	963 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	964 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	965 return -1;
adamc@801	966 }
adamc@759	967
adamc@1094	968 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	969
adamc@759	970 inps->kind = ENTRY;
adamc@759	971 inps->data.entry.parent = ctx->cur_container;
adamc@759	972 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	973 ctx->cur_container->data.subforms.entries = inps;
adamc@759	974
adamc@759	975 inps->data.entry.fields = inps+1;
adamc@759	976 ctx->cur_container = inps;
adamc@756	977 } else {
adamc@1094	978 int n = ctx->app->input_num(name);
adamc@756	979
adam@1384	980 if (n < 0)
adam@1384	981 return 0;
adamc@801	982
adamc@1094	983 if (n >= ctx->app->inputs_len) {
adam@1444	984 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	985 return -1;
adamc@801	986 }
adamc@756	987
adamc@756	988 INP(ctx)[n].kind = NORMAL;
adamc@756	989 INP(ctx)[n].data.normal = value;
adamc@756	990 }
adamc@801	991
adamc@801	992 return 0;
adamc@144	993 }
adamc@144	994
adamc@311	995 char *uw_get_input(uw_context ctx, int n) {
adamc@169	996 if (n < 0)
adamc@311	997 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	998 if (n >= ctx->app->inputs_len)
adamc@311	999 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1000
adamc@756	1001 switch (INP(ctx)[n].kind) {
adamc@737	1002 case UNSET:
adamc@737	1003 return NULL;
adamc@739	1004 case FIL:
adamc@739	1005 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1006 case SUBFORM:
adamc@756	1007 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1008 case SUBFORMS:
adamc@759	1009 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1010 case ENTRY:
adamc@759	1011 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1012 case NORMAL:
adamc@756	1013 return INP(ctx)[n].data.normal;
adamc@737	1014 default:
adamc@737	1015 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1016 }
adamc@138	1017 }
adamc@138	1018
adamc@311	1019 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	1020 if (n < 0)
adamc@311	1021 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1022 if (n >= ctx->app->inputs_len)
adamc@311	1023 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1024
adamc@756	1025 switch (INP(ctx)[n].kind) {
adamc@737	1026 case UNSET:
adamc@737	1027 return "";
adamc@739	1028 case FIL:
adamc@739	1029 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1030 case SUBFORM:
adamc@756	1031 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1032 case SUBFORMS:
adamc@759	1033 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1034 case ENTRY:
adamc@759	1035 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1036 case NORMAL:
adamc@756	1037 return INP(ctx)[n].data.normal;
adamc@737	1038 default:
adamc@737	1039 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1040 }
adamc@737	1041 }
adamc@737	1042
adamc@801	1043 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1044 int n = ctx->app->input_num(name);
adamc@737	1045
adamc@801	1046 if (n < 0) {
adam@2054	1047 uw_set_error(ctx, "Bad file input name");
adamc@801	1048 return -1;
adamc@801	1049 }
adamc@801	1050
adamc@1094	1051 if (n >= ctx->app->inputs_len) {
adam@2054	1052 uw_set_error(ctx, "For file input name, index %d is out of range", n);
adamc@801	1053 return -1;
adamc@801	1054 }
adamc@737	1055
adamc@739	1056 ctx->inputs[n].kind = FIL;
adamc@739	1057 ctx->inputs[n].data.file = f;
adamc@801	1058
adamc@801	1059 return 0;
adamc@737	1060 }
adamc@737	1061
adamc@739	1062 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1063
adamc@739	1064 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1065 if (n < 0)
adamc@737	1066 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1067 if (n >= ctx->app->inputs_len)
adamc@737	1068 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1069
adamc@756	1070 switch (INP(ctx)[n].kind) {
adamc@737	1071 case UNSET:
adamc@737	1072 {
adamc@739	1073 char *data = uw_malloc(ctx, 0);
adamc@740	1074 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1075 return f;
adamc@737	1076 }
adamc@739	1077 case FIL:
adamc@756	1078 return INP(ctx)[n].data.file;
adamc@737	1079 case NORMAL:
adamc@737	1080 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1081 case SUBFORM:
adamc@756	1082 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1083 case SUBFORMS:
adamc@759	1084 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1085 case ENTRY:
adamc@759	1086 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1087 default:
adamc@737	1088 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1089 }
adamc@190	1090 }
adamc@190	1091
adamc@756	1092 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1093 if (n < 0)
adamc@756	1094 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1095 if (n >= ctx->app->inputs_len)
adamc@756	1096 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1097
adamc@756	1098 switch (INP(ctx)[n].kind) {
adamc@756	1099 case UNSET:
adamc@756	1100 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1101 case FIL:
adamc@756	1102 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1103 case NORMAL:
adamc@756	1104 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1105 case SUBFORMS:
adamc@759	1106 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1107 case ENTRY:
adamc@759	1108 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1109 case SUBFORM:
adamc@759	1110 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1111 ctx->cur_container = &INP(ctx)[n];
adamc@756	1112 return;
adamc@756	1113 default:
adamc@756	1114 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1115 }
adamc@756	1116 }
adamc@756	1117
adamc@756	1118 void uw_leave_subform(uw_context ctx) {
adamc@756	1119 input *tmp;
adamc@756	1120
adamc@759	1121 if (ctx->cur_container == NULL)
adamc@756	1122 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1123
adamc@759	1124 tmp = ctx->cur_container;
adamc@759	1125 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1126 tmp->data.subform.parent = NULL;
adamc@759	1127 }
adamc@759	1128
adamc@759	1129 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1130 input *inps;
adamc@759	1131
adamc@759	1132 if (n < 0)
adamc@759	1133 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1134 if (n >= ctx->app->inputs_len)
adamc@759	1135 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1136
adamc@759	1137 switch (INP(ctx)[n].kind) {
adamc@759	1138 case UNSET:
adamc@759	1139 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1140 case FIL:
adamc@759	1141 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1142 case NORMAL:
adamc@759	1143 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1144 case SUBFORM:
adamc@759	1145 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1146 case ENTRY:
adamc@759	1147 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1148 case SUBFORMS:
adamc@759	1149 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1150 if (inps) {
adamc@759	1151 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1152 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1153 return 1;
adamc@759	1154 } else
adamc@759	1155 return 0;
adamc@759	1156 default:
adamc@759	1157 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1158 }
adamc@759	1159 }
adamc@759	1160
adamc@759	1161 int uw_next_entry(uw_context ctx) {
adamc@759	1162 if (ctx->cur_container == NULL)
adamc@759	1163 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1164
adamc@759	1165 switch (ctx->cur_container->kind) {
adamc@759	1166 case UNSET:
adamc@759	1167 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1168 case FIL:
adamc@759	1169 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1170 case NORMAL:
adamc@759	1171 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1172 case SUBFORM:
adamc@759	1173 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1174 case SUBFORMS:
adamc@759	1175 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1176 case ENTRY:
adamc@759	1177 if (ctx->cur_container->data.entry.next) {
adamc@759	1178 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1179 return 1;
adamc@759	1180 } else {
adamc@759	1181 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1182 return 0;
adamc@759	1183 }
adamc@759	1184 default:
adamc@759	1185 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1186 }
adamc@756	1187 }
adamc@756	1188
adamc@643	1189 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1190 ctx->script_header = s;
adamc@643	1191 }
adamc@643	1192
adamc@1094	1193 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1194 return ctx->app->url_prefix;
adamc@667	1195 }
adamc@667	1196
adamc@693	1197 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1198 ctx->needs_push = n;
adamc@693	1199 }
adamc@693	1200
adamc@736	1201 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1202 ctx->needs_sig = n;
adamc@736	1203 }
adamc@736	1204
adam@1936	1205 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936	1206 ctx->could_write_db = n;
adam@1936	1207 }
adam@1936	1208
adam@2056	1209 void uw_set_at_most_one_query(uw_context ctx, int n) {
adam@2056	1210 ctx->at_most_one_query = n;
adam@2056	1211 }
adam@2056	1212
adamc@667	1213
adam@1369	1214 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1215 if (b->back - b->front < extra) {
adamc@666	1216 size_t desired = b->front - b->start + extra, next;
adamc@136	1217 char *new_heap;
adamc@136	1218
adamc@666	1219 next = b->back - b->start;
adamc@317	1220 if (next == 0)
adamc@317	1221 next = 1;
adamc@317	1222 for (; next < desired; next *= 2);
adamc@136	1223
adamc@1134	1224 if (next > b->max) {
adamc@1113	1225 if (desired <= b->max)
adamc@1113	1226 next = desired;
adamc@1113	1227 else
adamc@1113	1228 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1229 }
adamc@1113	1230
adamc@666	1231 new_heap = realloc(b->start, next);
adamc@666	1232 b->front = new_heap + (b->front - b->start);
adamc@666	1233 b->back = new_heap + next;
adamc@136	1234
adamc@667	1235 if (new_heap != b->start) {
adamc@666	1236 b->start = new_heap;
adam@1389	1237 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1238 }
adamc@136	1239
adamc@666	1240 b->start = new_heap;
adamc@136	1241 }
adamc@136	1242 }
adamc@136	1243
adamc@832	1244 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1245 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1246 }
adamc@666	1247
adamc@832	1248 char *uw_heap_front(uw_context ctx) {
adamc@832	1249 return ctx->heap.front;
adamc@832	1250 }
adamc@832	1251
adamc@832	1252 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1253 ctx->heap.front = fr;
adamc@832	1254 }
adamc@832	1255
adam@1782	1256 void uw_begin_initializing(uw_context ctx) {
adam@1782	1257 ctx->amInitializing = 1;
adam@1782	1258 }
adam@1782	1259
adam@1782	1260 void uw_end_initializing(uw_context ctx) {
adam@1782	1261 ctx->amInitializing = 0;
adam@1782	1262 }
adam@1782	1263
adam@2013	1264 static void align_heap(uw_context ctx) {
adam@2013	1265 size_t posn = ctx->heap.front - ctx->heap.start;
adam@2013	1266
adam@2017	1267 if (posn % sizeof(void *) != 0) {
adam@2017	1268 size_t bump = sizeof(void ) - posn % sizeof(void );
adam@2013	1269 uw_check_heap(ctx, bump);
adam@2013	1270 ctx->heap.front += bump;
adam@2013	1271 }
adam@2013	1272 }
adam@2013	1273
adamc@311	1274 void *uw_malloc(uw_context ctx, size_t len) {
adam@2013	1275 // On some architectures, it's important that all word-sized memory accesses
adam@2013	1276 // be to word-aligned addresses, so we'll do a little bit of extra work here
adam@2013	1277 // in anticipation of a possible word-aligned access to the address we'll
adam@2013	1278 // return.
adam@2013	1279
adamc@136	1280 void *result;
adamc@136	1281
adam@1782	1282 if (ctx->amInitializing) {
adam@2017	1283 int error = posix_memalign(&result, sizeof(void *), len);
adam@2013	1284
adam@2013	1285 if (!error)
adam@1782	1286 return result;
adam@1782	1287 else
adam@2013	1288 uw_error(ctx, FATAL, "uw_malloc: posix_memalign() returns %d", error);
adam@1782	1289 } else {
adam@2013	1290 align_heap(ctx);
adam@2013	1291
adam@1782	1292 uw_check_heap(ctx, len);
adam@1782	1293
adam@1782	1294 result = ctx->heap.front;
adam@1782	1295 ctx->heap.front += len;
adam@1782	1296 return result;
adam@1782	1297 }
adamc@117	1298 }
adamc@117	1299
adamc@323	1300 void uw_begin_region(uw_context ctx) {
adam@2013	1301 align_heap(ctx);
adam@2013	1302
adamc@666	1303 regions r = (regions ) ctx->heap.front;
adamc@323	1304
adamc@323	1305 uw_check_heap(ctx, sizeof(regions));
adamc@323	1306
adamc@666	1307 ctx->heap.front += sizeof(regions);
adamc@323	1308
adamc@323	1309 r->next = ctx->regions;
adamc@323	1310 ctx->regions = r;
adamc@323	1311 }
adamc@323	1312
adamc@323	1313 void uw_end_region(uw_context ctx) {
adamc@323	1314 regions *r = ctx->regions;
adamc@323	1315
adamc@323	1316 if (r == NULL)
adamc@323	1317 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1318
adamc@666	1319 ctx->heap.front = (char *) r;
adamc@323	1320 ctx->regions = r->next;
adamc@323	1321 }
adamc@323	1322
adamc@324	1323 void uw_memstats(uw_context ctx) {
adam@1369	1324 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1325 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1326 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1327 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1328 }
adamc@324	1329
adam@1915	1330 int uw_pagelen(uw_context ctx) {
adam@1915	1331 return ctx->page.front - ctx->page.start;
adam@1915	1332 }
adam@1915	1333
adamc@311	1334 int uw_send(uw_context ctx, int sock) {
adam@1949	1335 size_t target_length = (ctx->outHeaders.front - ctx->outHeaders.start) + 2 + (ctx->page.front - ctx->page.start);
adam@1949	1336
adam@1949	1337 if (ctx->output_buffer_size < target_length) {
adam@1949	1338 do {
adam@1949	1339 ctx->output_buffer_size *= 2;
adam@1949	1340 } while (ctx->output_buffer_size < target_length);
adam@1949	1341 ctx->output_buffer = realloc(ctx->output_buffer, ctx->output_buffer_size);
adam@1949	1342 }
adam@1949	1343
adam@1949	1344 memcpy(ctx->output_buffer, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adam@1949	1345 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start), "\r\n", 2);
adam@1949	1346 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start) + 2, ctx->page.start, ctx->page.front - ctx->page.start);
adam@1949	1347
adam@1949	1348 return uw_really_send(sock, ctx->output_buffer, target_length);
adamc@462	1349 }
adamc@462	1350
adamc@856	1351 int uw_print(uw_context ctx, int fd) {
adamc@856	1352 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1353
adamc@856	1354 if (n < 0)
adamc@856	1355 return n;
adamc@856	1356
adamc@856	1357 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1358
adamc@856	1359 if (n < 0)
adamc@856	1360 return n;
adamc@856	1361
adamc@856	1362 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1363 }
adamc@856	1364
adamc@860	1365 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1366 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1367
adamc@860	1368 if (n < 0)
adamc@860	1369 return n;
adamc@860	1370
adamc@860	1371 n = output(data, "\r\n", 2);
adamc@860	1372
adamc@860	1373 if (n < 0)
adamc@860	1374 return n;
adamc@860	1375
adamc@860	1376 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1377 }
adamc@860	1378
adamc@462	1379 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1380 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1381 }
adamc@462	1382
adamc@462	1383 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1384 int len = strlen(s);
adamc@462	1385
adamc@462	1386 uw_check_headers(ctx, len + 1);
adamc@666	1387 strcpy(ctx->outHeaders.front, s);
adamc@666	1388 ctx->outHeaders.front += len;
adamc@562	1389 }
adamc@562	1390
adam@1934	1391 int uw_has_contentLength(uw_context ctx) {
adam@1934	1392 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934	1393 }
adam@1934	1394
adamc@1110	1395 void uw_clear_headers(uw_context ctx) {
adam@1369	1396 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1397 }
adamc@1110	1398
adam@1932	1399 void uw_Basis_clear_page(uw_context ctx) {
adam@1932	1400 uw_buffer_reset(&ctx->page);
adam@1932	1401 }
adam@1932	1402
adamc@562	1403 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1404 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1405 }
adamc@562	1406
adamc@562	1407 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1408 int len = strlen(s);
adamc@562	1409
adamc@562	1410 uw_check_script(ctx, len + 1);
adamc@666	1411 strcpy(ctx->script.front, s);
adamc@666	1412 ctx->script.front += len;
adamc@562	1413 }
adamc@562	1414
adam@1446	1415 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1416 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1417 uw_write_script(ctx, "sig=\"");
adam@1671	1418 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1419 uw_write_script(ctx, "\";");
adam@1671	1420 }
adam@1671	1421
adam@1446	1422 return ctx->script.start;
adam@1446	1423 }
adam@1446	1424
adamc@695	1425 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1426 if (s[0] == 0)
adamc@695	1427 return "";
adamc@695	1428 else {
adamc@695	1429 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1430 sprintf(r, " onload='%s'", s);
adamc@695	1431 return r;
adamc@695	1432 }
adamc@695	1433 }
adamc@695	1434
adamc@1042	1435 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1436 if (ctx->script_header[0] == 0)
adamc@1042	1437 return "";
adamc@1042	1438 else {
vshabanoff@1763	1439 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763	1440 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042	1441 return r;
adamc@1042	1442 }
adamc@1042	1443 }
adamc@1042	1444
adamc@694	1445 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1446 if (ctx->client == NULL) {
adamc@736	1447 if (ctx->needs_sig) {
adamc@1094	1448 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1449 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1450 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1451 return r;
adamc@736	1452 }
adamc@736	1453 else
adamc@736	1454 return "";
adamc@736	1455 } else {
adamc@1094	1456 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1457 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1458 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1459 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1460 (ctx->isPost ? "true" : "false"),
adamc@682	1461 ctx->client->id,
adamc@682	1462 ctx->client->pass,
adamc@1094	1463 ctx->app->url_prefix,
adamc@1094	1464 ctx->app->timeout,
adamc@736	1465 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1466 sig,
adamc@736	1467 ctx->needs_sig ? "\";" : "");
adamc@679	1468 return r;
adamc@668	1469 }
adamc@667	1470 }
adamc@667	1471
adamc@574	1472 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1473 char r, s2;
adamc@574	1474
adam@1446	1475 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1476
adamc@666	1477 r = s2 = ctx->heap.front;
adamc@574	1478 *s2++ = '"';
adamc@574	1479
adamc@574	1480 for (; *s; s++) {
adam@1286	1481 unsigned char c = *s;
adamc@574	1482
adamc@574	1483 switch (c) {
adamc@574	1484 case '"':
adamc@574	1485 strcpy(s2, "\\\"");
adamc@574	1486 s2 += 2;
adamc@574	1487 break;
adamc@1027	1488 case '\'':
adamc@1027	1489 strcpy(s2, "\\047");
adamc@1027	1490 s2 += 4;
adamc@1027	1491 break;
adamc@574	1492 case '\\':
adamc@574	1493 strcpy(s2, "\\\\");
adamc@574	1494 s2 += 2;
adamc@574	1495 break;
adam@1457	1496 case '<':
adam@1457	1497 strcpy(s2, "\\074");
adam@1457	1498 s2 += 4;
adam@1457	1499 break;
adamc@574	1500 default:
adam@1286	1501 if (isprint((int)c) \|\| c >= 128)
adamc@574	1502 *s2++ = c;
adamc@574	1503 else {
adam@1429	1504 sprintf(s2, "\\%03o", c);
adamc@574	1505 s2 += 4;
adamc@574	1506 }
adamc@574	1507 }
adamc@574	1508 }
adamc@574	1509
adamc@574	1510 strcpy(s2, "\"");
adamc@910	1511 ctx->heap.front = s2 + 2;
adamc@574	1512 return r;
adamc@574	1513 }
adamc@574	1514
adam@1286	1515 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1516 unsigned char c = c1;
adamc@1025	1517 char r, s2;
adamc@1025	1518
adam@1446	1519 uw_check_heap(ctx, 7);
adamc@1025	1520
adamc@1025	1521 r = s2 = ctx->heap.front;
adamc@1025	1522 *s2++ = '"';
adamc@1025	1523
adamc@1025	1524 switch (c) {
adamc@1025	1525 case '"':
adamc@1025	1526 strcpy(s2, "\\\"");
adamc@1025	1527 s2 += 2;
adamc@1025	1528 break;
adamc@1027	1529 case '\'':
adamc@1027	1530 strcpy(s2, "\\047");
adamc@1027	1531 s2 += 4;
adamc@1027	1532 break;
adamc@1025	1533 case '\\':
adamc@1025	1534 strcpy(s2, "\\\\");
adamc@1025	1535 s2 += 2;
adamc@1025	1536 break;
adam@1457	1537 case '<':
adam@1457	1538 strcpy(s2, "\\074");
adam@1457	1539 s2 += 4;
adam@1457	1540 break;
adamc@1025	1541 default:
adam@1286	1542 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1543 *s2++ = c;
adamc@1025	1544 else {
adam@1429	1545 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1546 s2 += 4;
adamc@1025	1547 }
adamc@1025	1548 }
adamc@1025	1549
adamc@1025	1550 strcpy(s2, "\"");
adamc@1025	1551 ctx->heap.front = s2 + 2;
adamc@1025	1552 return r;
adamc@1025	1553 }
adamc@1025	1554
adamc@574	1555 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1556 char r, s2;
adamc@574	1557
adam@1446	1558 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1559
adamc@666	1560 r = s2 = ctx->script.front;
adamc@574	1561 *s2++ = '"';
adamc@574	1562
adamc@574	1563 for (; *s; s++) {
adam@1286	1564 unsigned char c = *s;
adamc@574	1565
adamc@574	1566 switch (c) {
adamc@577	1567 case '\'':
adamc@1027	1568 strcpy(s2, "\\");
adamc@574	1569 s2 += 2;
adamc@574	1570 break;
adamc@574	1571 case '\\':
adamc@574	1572 strcpy(s2, "\\\\");
adamc@574	1573 s2 += 2;
adamc@574	1574 break;
adam@1457	1575 case '<':
adam@1457	1576 strcpy(s2, "\\074");
adam@1457	1577 s2 += 4;
adam@1457	1578 break;
adamc@574	1579 default:
adam@1286	1580 if (isprint((int)c) \|\| c >= 128)
adamc@574	1581 *s2++ = c;
adamc@574	1582 else {
adam@1429	1583 sprintf(s2, "\\%03o", c);
adamc@574	1584 s2 += 4;
adamc@574	1585 }
adamc@574	1586 }
adamc@574	1587 }
adamc@574	1588
adamc@574	1589 strcpy(s2, "\"");
adamc@666	1590 ctx->script.front = s2 + 1;
adamc@574	1591 return r;
adamc@574	1592 }
adamc@574	1593
adamc@682	1594 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1595 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1596 return "null";
adamc@682	1597 else {
adamc@682	1598 int len;
adamc@682	1599 char *r;
adamc@682	1600
adamc@682	1601 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1602 r = ctx->heap.front;
adamc@682	1603 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1604 ctx->heap.front += len+1;
adamc@682	1605 return r;
adamc@682	1606 }
adamc@682	1607 }
adamc@682	1608
adam@1446	1609 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1610 int len;
adamc@577	1611 size_t s_len = strlen(s);
adamc@562	1612
grrwlf@1998	1613 if(ctx->id < 0)
grrwlf@1998	1614 uw_error(ctx, FATAL, "Attempt to create client source using inappropriate context");
grrwlf@1998	1615
adam@1446	1616 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1617 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1618 ctx->script.front += len;
adamc@666	1619 strcpy(ctx->script.front, s);
adamc@666	1620 ctx->script.front += s_len;
adamc@970	1621 strcpy(ctx->script.front, "));");
adamc@972	1622 ctx->script.front += 3;
adamc@562	1623
adam@1446	1624 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1625 return r;
adam@1446	1626 }
adam@1446	1627
adam@1446	1628 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1629 int len;
adamc@577	1630 size_t s_len = strlen(s);
adamc@577	1631
adam@1446	1632 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1633 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1634 ctx->script.front += len;
adamc@666	1635 strcpy(ctx->script.front, s);
adamc@666	1636 ctx->script.front += s_len;
adamc@970	1637 strcpy(ctx->script.front, "));");
adamc@972	1638 ctx->script.front += 3;
adamc@577	1639
adamc@577	1640 return uw_unit_v;
adamc@577	1641 }
adamc@577	1642
adamc@311	1643 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1644 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1645 }
adamc@117	1646
adamc@311	1647 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1648 *(ctx->page.front)++ = c;
adam@1413	1649 *ctx->page.front = 0;
adamc@117	1650 }
adamc@117	1651
adamc@311	1652 void uw_writec(uw_context ctx, char c) {
adam@1413	1653 uw_check(ctx, 2);
adamc@311	1654 uw_writec_unsafe(ctx, c);
adamc@117	1655 }
adamc@117	1656
adamc@311	1657 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1658 int len = strlen(s);
adamc@666	1659 memcpy(ctx->page.front, s, len);
adamc@666	1660 ctx->page.front += len;
adamc@117	1661 }
adamc@117	1662
adamc@311	1663 void uw_write(uw_context ctx, const char* s) {
adamc@311	1664 uw_check(ctx, strlen(s) + 1);
adamc@311	1665 uw_write_unsafe(ctx, s);
adamc@666	1666 *ctx->page.front = 0;
adamc@102	1667 }
adamc@106	1668
adamc@311	1669 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1670 char *result;
adamc@136	1671 int len;
adamc@311	1672 uw_check_heap(ctx, INTS_MAX);
adamc@666	1673 result = ctx->heap.front;
adamc@276	1674 sprintf(result, "%lld%n", n, &len);
adamc@666	1675 ctx->heap.front += len+1;
adamc@136	1676 return result;
adamc@106	1677 }
adamc@106	1678
adamc@311	1679 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1680 char *result;
adamc@136	1681 int len;
adamc@311	1682 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1683 result = ctx->heap.front;
adam@1920	1684 sprintf(result, "%.16g%n", n, &len);
adamc@666	1685 ctx->heap.front += len+1;
adamc@136	1686 return result;
adamc@106	1687 }
adamc@106	1688
adamc@311	1689 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1690 int len = strlen(s);
adamc@136	1691 char result, p;
adamc@311	1692 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1693
adamc@666	1694 result = p = ctx->heap.front;
adamc@136	1695
adamc@136	1696 for (; *s; s++) {
adamc@1054	1697 unsigned char c = *s;
adamc@136	1698
adamc@136	1699 if (c == '"') {
adamc@136	1700 strcpy(p, """);
adamc@136	1701 p += 6;
adamc@136	1702 } else if (c == '&') {
adamc@136	1703 strcpy(p, "&");
adamc@136	1704 p += 5;
adamc@136	1705 }
adamc@1059	1706 else
adamc@136	1707 *p++ = c;
adamc@136	1708 }
adamc@136	1709
adamc@137	1710 *p++ = 0;
adamc@666	1711 ctx->heap.front = p;
adamc@136	1712 return result;
adamc@106	1713 }
adamc@106	1714
adamc@1011	1715 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1716 char result, p;
adamc@1011	1717 uw_check_heap(ctx, 7);
adamc@1011	1718
adamc@1011	1719 result = p = ctx->heap.front;
adamc@1011	1720
adamc@1011	1721 if (c == '"') {
adamc@1011	1722 strcpy(p, """);
adamc@1011	1723 p += 6;
adamc@1011	1724 } else if (c == '&') {
adamc@1011	1725 strcpy(p, "&");
adamc@1011	1726 p += 5;
adamc@1011	1727 }
adamc@1059	1728 else
adamc@1011	1729 *p++ = c;
adamc@1011	1730
adamc@1011	1731 *p++ = 0;
adamc@1011	1732 ctx->heap.front = p;
adamc@1011	1733 return result;
adamc@1011	1734 }
adamc@1011	1735
adamc@721	1736 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1737 return s;
adamc@721	1738 }
adamc@721	1739
adamc@311	1740 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1741 int len;
adamc@117	1742
adamc@666	1743 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1744 ctx->page.front += len;
adamc@106	1745 }
adamc@106	1746
adamc@428	1747 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1748 uw_check(ctx, INTS_MAX);
adamc@311	1749 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1750
adamc@428	1751 return uw_unit_v;
adamc@106	1752 }
adamc@106	1753
adamc@428	1754 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1755 int len;
adamc@117	1756
adamc@311	1757 uw_check(ctx, FLOATS_MAX);
adamc@666	1758 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1759 ctx->page.front += len;
adamc@428	1760
adamc@428	1761 return uw_unit_v;
adamc@117	1762 }
adamc@117	1763
adamc@428	1764 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1765 uw_check(ctx, strlen(s) * 6);
adamc@117	1766
adamc@106	1767 for (; *s; s++) {
adamc@1054	1768 unsigned char c = *s;
adamc@106	1769
adamc@106	1770 if (c == '"')
adamc@311	1771 uw_write_unsafe(ctx, """);
adamc@136	1772 else if (c == '&')
adamc@311	1773 uw_write_unsafe(ctx, "&");
adamc@1059	1774 else
adamc@311	1775 uw_writec_unsafe(ctx, c);
adamc@106	1776 }
adamc@428	1777
adamc@428	1778 return uw_unit_v;
adamc@106	1779 }
adamc@120	1780
adamc@1011	1781 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1782 uw_check(ctx, 6);
adamc@1011	1783
adamc@1011	1784 if (c == '"')
adamc@1011	1785 uw_write_unsafe(ctx, """);
adamc@1011	1786 else if (c == '&')
adamc@1011	1787 uw_write_unsafe(ctx, "&");
adamc@1059	1788 else
adamc@1011	1789 uw_writec_unsafe(ctx, c);
adamc@1011	1790
adamc@1011	1791 return uw_unit_v;
adamc@1011	1792 }
adamc@1011	1793
adamc@120	1794
adamc@311	1795 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1796 int len;
adamc@137	1797 char *r;
adamc@137	1798
adamc@311	1799 uw_check_heap(ctx, INTS_MAX);
adamc@666	1800 r = ctx->heap.front;
adamc@276	1801 sprintf(r, "%lld%n", n, &len);
adamc@666	1802 ctx->heap.front += len+1;
adamc@137	1803 return r;
adamc@120	1804 }
adamc@120	1805
adamc@682	1806 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1807 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1808 return "";
adamc@682	1809 else {
adamc@682	1810 int len;
adamc@682	1811 char *r;
adamc@679	1812
adamc@682	1813 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1814 r = ctx->heap.front;
adamc@682	1815 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1816 ctx->heap.front += len+1;
adamc@682	1817 return r;
adamc@682	1818 }
adamc@679	1819 }
adamc@679	1820
adamc@311	1821 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1822 int len;
adamc@137	1823 char *r;
adamc@137	1824
adamc@311	1825 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1826 r = ctx->heap.front;
adamc@137	1827 sprintf(r, "%g%n", n, &len);
adamc@666	1828 ctx->heap.front += len+1;
adamc@137	1829 return r;
adamc@120	1830 }
adamc@120	1831
adamc@311	1832 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1833 char r, p;
adamc@137	1834
adamc@925	1835 if (s[0] == '\0')
adamc@925	1836 return "_";
adamc@925	1837
adamc@925	1838 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1839
adamc@925	1840 r = p = ctx->heap.front;
adamc@925	1841 if (s[0] == '_')
adamc@925	1842 *p++ = '_';
adamc@925	1843
adamc@925	1844 for (; *s; s++) {
adamc@1087	1845 unsigned char c = *s;
adamc@137	1846
adamc@137	1847 if (c == ' ')
adamc@137	1848 *p++ = '+';
adamc@137	1849 else if (isalnum(c))
adamc@137	1850 *p++ = c;
adamc@137	1851 else {
adamc@1259	1852 sprintf(p, ".%02X", c);
adamc@137	1853 p += 3;
adamc@137	1854 }
adamc@137	1855 }
adamc@137	1856
adamc@137	1857 *p++ = 0;
adamc@666	1858 ctx->heap.front = p;
adamc@137	1859 return r;
adamc@120	1860 }
adamc@120	1861
adamc@311	1862 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1863 if (b == uw_Basis_False)
adamc@186	1864 return "0";
adamc@186	1865 else
adamc@186	1866 return "1";
adamc@186	1867 }
adamc@186	1868
adam@1620	1869 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1870 char *r;
adam@1620	1871 int len;
adam@1620	1872 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1873 r = ctx->heap.front;
adam@1620	1874 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1875 ctx->heap.front += len+1;
adam@1620	1876 return r;
adam@1620	1877 }
adam@1620	1878
adamc@311	1879 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1880 int len;
adamc@120	1881
adamc@666	1882 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1883 ctx->page.front += len;
adamc@120	1884 }
adamc@120	1885
adamc@428	1886 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1887 uw_check(ctx, INTS_MAX);
adamc@311	1888 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1889
adamc@428	1890 return uw_unit_v;
adamc@120	1891 }
adamc@120	1892
adamc@682	1893 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1894 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1895 int len;
phurst@1981	1896
adamc@682	1897 uw_check(ctx, INTS_MAX + 1);
adamc@682	1898 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1899 ctx->page.front += len;
adamc@682	1900 }
phurst@1981	1901
adamc@679	1902 return uw_unit_v;
adamc@679	1903 }
adamc@679	1904
adamc@428	1905 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1906 int len;
adamc@120	1907
adamc@311	1908 uw_check(ctx, FLOATS_MAX);
adamc@666	1909 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1910 ctx->page.front += len;
adamc@428	1911
adamc@428	1912 return uw_unit_v;
adamc@120	1913 }
adamc@120	1914
adamc@488	1915 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1916 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1917 }
adamc@488	1918
adam@1404	1919 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1920 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1921 }
adam@1404	1922
adamc@428	1923 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1924 if (s[0] == '\0') {
adamc@925	1925 uw_check(ctx, 1);
adamc@925	1926 uw_writec_unsafe(ctx, '_');
adamc@925	1927 return uw_unit_v;
adamc@925	1928 }
adamc@925	1929
adamc@925	1930 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1931
adamc@925	1932 if (s[0] == '_')
adamc@925	1933 uw_writec_unsafe(ctx, '_');
adamc@120	1934
adamc@120	1935 for (; *s; s++) {
adamc@1087	1936 unsigned char c = *s;
adamc@120	1937
adamc@120	1938 if (c == ' ')
adamc@311	1939 uw_writec_unsafe(ctx, '+');
adamc@120	1940 else if (isalnum(c))
adamc@311	1941 uw_writec_unsafe(ctx, c);
adamc@120	1942 else {
adamc@1259	1943 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1944 ctx->page.front += 3;
adamc@120	1945 }
adamc@120	1946 }
adamc@428	1947
adamc@428	1948 return uw_unit_v;
adamc@120	1949 }
adamc@120	1950
adamc@428	1951 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1952 if (b == uw_Basis_False)
adamc@311	1953 uw_writec(ctx, '0');
adamc@186	1954 else
adamc@311	1955 uw_writec(ctx, '1');
adamc@428	1956
adamc@428	1957 return uw_unit_v;
adamc@186	1958 }
adamc@186	1959
adam@1620	1960 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	1961 int len;
phurst@1981	1962
adam@1620	1963 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	1964 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1965 ctx->page.front += len;
phurst@1981	1966
adam@1620	1967 return uw_unit_v;
adam@1620	1968 }
adam@1620	1969
adamc@120	1970
adamc@311	1971 static char uw_unurlify_advance(char s) {
adamc@144	1972 char *new_s = strchr(s, '/');
adamc@120	1973
adamc@120	1974 if (new_s)
adamc@120	1975 *new_s++ = 0;
adamc@120	1976 else
adamc@144	1977 new_s = strchr(s, 0);
adamc@144	1978
adamc@144	1979 return new_s;
adamc@144	1980 }
adamc@144	1981
adamc@311	1982 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1983 char new_s = uw_unurlify_advance(s);
adamc@311	1984 uw_Basis_int r;
adamc@120	1985
adamc@276	1986 r = atoll(*s);
adamc@120	1987 *s = new_s;
adamc@120	1988 return r;
adamc@120	1989 }
adamc@120	1990
adamc@311	1991 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1992 char new_s = uw_unurlify_advance(s);
adamc@311	1993 uw_Basis_float r;
adamc@120	1994
adamc@120	1995 r = atof(*s);
adamc@120	1996 *s = new_s;
adamc@120	1997 return r;
adamc@120	1998 }
adamc@120	1999
adamc@488	2000 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	2001 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	2002 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	2003 return r;
adamc@488	2004 }
adamc@488	2005
adamc@1023	2006 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	2007 char s1, s2 = s;
adamc@144	2008 int n;
adamc@136	2009
adamc@1023	2010 if (!fromClient) {
adamc@1023	2011 if (*s2 == '_')
adamc@1023	2012 ++s2;
adamc@1259	2013 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	2014 s2 += 3;
adamc@1023	2015 }
adamc@925	2016
adamc@927	2017 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	2018 unsigned char c = *s2;
adamc@136	2019
adamc@136	2020 switch (c) {
adamc@136	2021 case '+':
adamc@136	2022 *s1 = ' ';
adamc@136	2023 break;
adamc@136	2024 case '%':
adamc@169	2025 if (s2[1] == 0)
adamc@311	2026 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	2027 if (s2[2] == 0)
adamc@311	2028 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	2029 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2030 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	2031 *s1 = n;
adamc@136	2032 s2 += 2;
adamc@136	2033 break;
adamc@1259	2034 case '.':
adamc@1259	2035 if (!fromClient) {
adamc@1259	2036 if (s2[1] == 0)
adamc@1259	2037 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	2038 if (s2[2] == 0)
adamc@1259	2039 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	2040 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2041 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	2042 *s1 = n;
adamc@1259	2043 s2 += 2;
adamc@1259	2044 break;
adamc@1259	2045 }
adamc@136	2046 default:
adamc@136	2047 *s1 = c;
adamc@136	2048 }
adamc@136	2049 }
adamc@136	2050 *s1++ = 0;
adamc@144	2051 return s1;
adamc@144	2052 }
adamc@144	2053
adamc@311	2054 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	2055 char new_s = uw_unurlify_advance(s);
adamc@311	2056 uw_Basis_bool r;
phurst@1981	2057
adamc@186	2058 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2059 r = uw_Basis_False;
adamc@186	2060 else
adamc@311	2061 r = uw_Basis_True;
adamc@186	2062
adamc@186	2063 *s = new_s;
adamc@186	2064 return r;
adamc@186	2065 }
adamc@186	2066
adamc@311	2067 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2068 char new_s = uw_unurlify_advance(s);
adamc@1134	2069 char *r;
adamc@1134	2070 int len;
adamc@144	2071
adamc@200	2072 len = strlen(*s);
adamc@311	2073 uw_check_heap(ctx, len + 1);
adamc@144	2074
adamc@666	2075 r = ctx->heap.front;
adamc@1023	2076 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2077 *s = new_s;
adamc@1023	2078 return r;
adamc@1023	2079 }
adamc@1023	2080
adamc@1109	2081 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2082 s = uw_unurlify_advance(s);
adamc@1109	2083 return uw_unit_v;
adamc@1109	2084 }
adamc@1109	2085
adamc@1023	2086 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2087 char new_s = uw_unurlify_advance(s);
adamc@1134	2088 char *r;
adamc@1134	2089 int len;
adamc@1023	2090
adamc@1023	2091 len = strlen(*s);
adamc@1023	2092 uw_check_heap(ctx, len + 1);
adamc@1023	2093
adamc@1023	2094 r = ctx->heap.front;
adamc@1023	2095 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2096 *s = new_s;
adamc@136	2097 return r;
adamc@120	2098 }
adamc@135	2099
adamc@135	2100
adamc@311	2101 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2102 int len;
adamc@286	2103 char *r;
adamc@286	2104
adamc@311	2105 uw_check_heap(ctx, INTS_MAX);
adamc@666	2106 r = ctx->heap.front;
adamc@286	2107 sprintf(r, "%lld%n", n, &len);
adamc@666	2108 ctx->heap.front += len+1;
adamc@286	2109 return r;
adamc@286	2110 }
adamc@286	2111
adamc@428	2112 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2113 int len;
adamc@286	2114
adamc@311	2115 uw_check(ctx, INTS_MAX);
adamc@666	2116 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2117 ctx->page.front += len;
phurst@1981	2118
adamc@428	2119 return uw_unit_v;
adamc@286	2120 }
adamc@286	2121
adam@1358	2122 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2123 unsigned int n = ch;
adam@1358	2124 int len;
adam@1358	2125 char *r;
adam@1358	2126
adam@1358	2127 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2128 r = ctx->heap.front;
adam@1358	2129 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2130 ctx->heap.front += len+1;
adam@1358	2131 return r;
adam@1358	2132 }
adam@1358	2133
adam@1358	2134 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2135 unsigned int n = ch;
adam@1358	2136 int len;
adam@1358	2137
adam@1358	2138 uw_check(ctx, INTS_MAX+3);
adam@1358	2139 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2140 ctx->page.front += len;
adam@1358	2141 return uw_unit_v;
adam@1358	2142 }
adam@1358	2143
adamc@311	2144 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2145 int len;
adamc@286	2146 char *r;
adamc@286	2147
adamc@311	2148 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2149 r = ctx->heap.front;
adamc@286	2150 sprintf(r, "%g%n", n, &len);
adamc@666	2151 ctx->heap.front += len+1;
adamc@286	2152 return r;
adamc@286	2153 }
adamc@286	2154
adamc@428	2155 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2156 int len;
adamc@286	2157
adamc@311	2158 uw_check(ctx, FLOATS_MAX);
adamc@666	2159 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2160 ctx->page.front += len;
adamc@428	2161
adamc@428	2162 return uw_unit_v;
adamc@286	2163 }
adamc@286	2164
adam@1365	2165 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2166 int len;
adam@1360	2167 char *r;
adam@1360	2168
adam@1360	2169 uw_check_heap(ctx, INTS_MAX);
adam@1360	2170 r = ctx->heap.front;
adamc@1377	2171 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2172 ctx->heap.front += len+1;
adam@1360	2173 return r;
adam@1360	2174 }
adam@1360	2175
adam@1365	2176 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2177 int len;
adam@1360	2178
adam@1360	2179 uw_check(ctx, INTS_MAX);
adam@1360	2180 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2181 ctx->page.front += len;
phurst@1981	2182
adam@1360	2183 return uw_unit_v;
adam@1360	2184 }
adam@1360	2185
adam@1444	2186 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2187 char r, s2;
adamc@137	2188
adamc@311	2189 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2190
adamc@666	2191 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2192 unsigned char c = *s;
adamc@137	2193
adamc@137	2194 switch (c) {
adamc@137	2195 case '<':
adamc@137	2196 strcpy(s2, "<");
adamc@137	2197 s2 += 4;
adamc@137	2198 break;
adamc@137	2199 case '&':
adamc@137	2200 strcpy(s2, "&");
adamc@137	2201 s2 += 5;
adamc@137	2202 break;
adamc@137	2203 default:
adamc@1059	2204 *s2++ = c;
adamc@137	2205 }
adamc@137	2206 }
adamc@137	2207
adamc@137	2208 *s2++ = 0;
adamc@666	2209 ctx->heap.front = s2;
adamc@137	2210 return r;
adamc@135	2211 }
adamc@135	2212
adamc@428	2213 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2214 uw_check(ctx, strlen(s) * 6);
adamc@135	2215
adamc@135	2216 for (; *s; s++) {
adamc@1054	2217 unsigned char c = *s;
adamc@135	2218
adamc@135	2219 switch (c) {
adamc@135	2220 case '<':
adamc@311	2221 uw_write_unsafe(ctx, "<");
adamc@135	2222 break;
adamc@135	2223 case '&':
adamc@311	2224 uw_write_unsafe(ctx, "&");
adamc@135	2225 break;
adamc@135	2226 default:
adamc@1059	2227 uw_writec_unsafe(ctx, c);
adamc@135	2228 }
adamc@135	2229 }
adamc@428	2230
adamc@428	2231 return uw_unit_v;
adamc@135	2232 }
adamc@180	2233
adamc@311	2234 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2235 if (b == uw_Basis_False)
adamc@286	2236 return "False";
adamc@286	2237 else
adamc@286	2238 return "True";
adamc@286	2239 }
adamc@286	2240
adamc@428	2241 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2242 if (b == uw_Basis_False) {
adamc@311	2243 uw_check(ctx, 6);
adamc@666	2244 strcpy(ctx->page.front, "False");
adamc@666	2245 ctx->page.front += 5;
adamc@286	2246 } else {
adamc@311	2247 uw_check(ctx, 5);
adamc@666	2248 strcpy(ctx->page.front, "True");
adamc@666	2249 ctx->page.front += 4;
adamc@286	2250 }
adamc@428	2251
adamc@428	2252 return uw_unit_v;
adamc@286	2253 }
adamc@286	2254
adamc@436	2255 #define TIME_FMT "%x %X"
adamc@438	2256 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2257 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2258
adam@1629	2259 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2260
adamc@436	2261 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2262 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2263 }
adamc@436	2264
adamc@436	2265 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2266 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2267 }
adamc@436	2268
adam@1446	2269 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2270 int len;
adam@1446	2271 char *r;
adam@1446	2272
adam@1446	2273 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2274 r = ctx->heap.front;
adam@1446	2275 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2276 ctx->heap.front += len+1;
adam@1446	2277 return r;
adam@1446	2278 }
adam@1446	2279
adam@1446	2280 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2281 int len;
adam@1446	2282
adam@1446	2283 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2284 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2285 ctx->page.front += len;
phurst@1981	2286
adam@1446	2287 return uw_unit_v;
adam@1446	2288 }
adam@1446	2289
adamc@821	2290 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2291 while (n >= 0) {
adam@1388	2292 if (*s == 0)
adam@1388	2293 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2294
adam@1388	2295 if (n == 0)
adam@1388	2296 return *s;
adam@1388	2297
adam@1388	2298 --n;
adam@1388	2299 ++s;
adam@1388	2300 }
adam@1388	2301
adam@1388	2302 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2303 }
adamc@821	2304
adamc@821	2305 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2306 while (n >= 0) {
adam@1388	2307 if (*s == 0 \|\| n == 0)
adam@1388	2308 return s;
adam@1388	2309
adam@1388	2310 --n;
adam@1388	2311 ++s;
adam@1388	2312 }
adam@1388	2313
adam@1388	2314 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2315 }
adamc@821	2316
adamc@828	2317 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2318 return strlen(s);
adamc@828	2319 }
adamc@828	2320
adam@1388	2321 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2322 while (n > 0) {
adam@1388	2323 if (*s == 0)
adam@1388	2324 return uw_Basis_False;
adam@1388	2325
adam@1388	2326 --n;
adam@1388	2327 ++s;
adam@1388	2328 }
adam@1388	2329
adam@1388	2330 return uw_Basis_True;
adam@1388	2331 }
adam@1388	2332
adamc@829	2333 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2334 return strchr(s, ch);
adamc@829	2335 }
adamc@829	2336
adamc@831	2337 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2338 return strcspn(s, chs);
adamc@831	2339 }
adamc@831	2340
adamc@829	2341 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2342 uw_Basis_string r = strchr(s, ch);
adamc@829	2343 if (r == NULL)
adamc@829	2344 return NULL;
adamc@829	2345 else {
adamc@829	2346 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2347 *nr = r - s;
adamc@829	2348 return nr;
adamc@829	2349 }
adamc@829	2350 }
adamc@829	2351
adam@1390	2352 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2353 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2354 if (r == NULL)
adam@1390	2355 return NULL;
adam@1390	2356 else {
adam@1390	2357 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2358 *nr = r - haystack;
adam@1390	2359 return nr;
adam@1390	2360 }
adam@1390	2361 }
adam@1390	2362
adamc@311	2363 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2364 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2365 char *s;
adamc@180	2366
adamc@311	2367 uw_check_heap(ctx, len);
adamc@180	2368
adamc@666	2369 s = ctx->heap.front;
adamc@180	2370
adamc@180	2371 strcpy(s, s1);
adamc@180	2372 strcat(s, s2);
adamc@666	2373 ctx->heap.front += len;
adamc@180	2374
adamc@180	2375 return s;
adamc@180	2376 }
adamc@278	2377
adamc@829	2378 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2379 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2380
adamc@829	2381 if (start < 0)
adamc@829	2382 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2383 if (len < 0)
adamc@829	2384 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2385 if (start + len > full_len)
adamc@829	2386 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2387
adamc@829	2388 if (start + len == full_len)
adamc@829	2389 return &s[start];
adamc@829	2390 else {
adamc@829	2391 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2392 memcpy(r, s+start, len);
adamc@829	2393 r[len] = 0;
adamc@829	2394 return r;
adamc@829	2395 }
phurst@1981	2396
adamc@829	2397 }
adamc@829	2398
adamc@1023	2399 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2400 char *r;
adamc@1023	2401
adamc@1023	2402 uw_check_heap(ctx, 2);
adamc@1023	2403 r = ctx->heap.front;
adamc@1023	2404 r[0] = ch;
adamc@1023	2405 r[1] = 0;
adamc@1023	2406
adamc@1023	2407 ctx->heap.front += 2;
adamc@1023	2408
adamc@1023	2409 return r;
adamc@1023	2410 }
adamc@1023	2411
adamc@737	2412 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2413 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2414 char *s;
adamc@278	2415
adamc@311	2416 uw_check_heap(ctx, len);
adamc@278	2417
adamc@666	2418 s = ctx->heap.front;
adamc@278	2419
adamc@278	2420 strcpy(s, s1);
adamc@666	2421 ctx->heap.front += len;
adamc@278	2422
adamc@278	2423 return s;
adamc@278	2424 }
adamc@280	2425
adam@1295	2426 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2427 if (ctx->error_message[0]) {
adam@1295	2428 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2429 ctx->error_message[0] = 0;
adam@1295	2430 return s;
adam@1295	2431 } else
adam@1295	2432 return NULL;
adam@1295	2433 }
adam@1295	2434
adamc@737	2435 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2436 if (s1)
adamc@737	2437 return uw_strdup(ctx, s1);
adamc@493	2438 else
adamc@493	2439 return NULL;
adamc@493	2440 }
adamc@493	2441
adamc@742	2442 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2443 char *r = uw_malloc(ctx, len);
adamc@742	2444 memcpy(r, p, len);
adamc@742	2445 return r;
adamc@742	2446 }
adamc@280	2447
adamc@879	2448 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2449
adamc@311	2450 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2451 int len;
adamc@281	2452 char *r;
adamc@281	2453
adamc@311	2454 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2455 r = ctx->heap.front;
adamc@879	2456 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2457 ctx->heap.front += len+1;
adamc@281	2458 return r;
adamc@281	2459 }
adamc@281	2460
adamc@467	2461 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2462 if (n == NULL)
adamc@467	2463 return "NULL";
adamc@467	2464 else
adamc@467	2465 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2466 }
adamc@467	2467
adam@1920	2468 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879	2469
adamc@311	2470 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2471 int len;
adamc@281	2472 char *r;
adamc@281	2473
adamc@311	2474 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2475 r = ctx->heap.front;
adamc@879	2476 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2477 ctx->heap.front += len+1;
adamc@281	2478 return r;
adamc@281	2479 }
adamc@281	2480
adamc@467	2481 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2482 if (n == NULL)
adamc@467	2483 return "NULL";
adamc@467	2484 else
adamc@467	2485 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2486 }
adamc@467	2487
adam@1834	2488 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2489 char *uw_sqlsuffixString = "::text";
adamc@1011	2490 char *uw_sqlsuffixChar = "::char";
adamc@281	2491
adamc@311	2492 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2493 char r, s2;
adamc@280	2494
adamc@879	2495 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2496
adamc@666	2497 r = s2 = ctx->heap.front;
adamc@879	2498 if (uw_Estrings)
adamc@879	2499 *s2++ = 'E';
adamc@280	2500 *s2++ = '\'';
adamc@280	2501
adamc@280	2502 for (; *s; s++) {
adamc@280	2503 char c = *s;
adamc@280	2504
adamc@280	2505 switch (c) {
adamc@280	2506 case '\'':
adamc@885	2507 if (uw_Estrings)
adamc@885	2508 strcpy(s2, "\\'");
adamc@885	2509 else
adamc@885	2510 strcpy(s2, "''");
adamc@280	2511 s2 += 2;
adamc@280	2512 break;
adamc@280	2513 case '\\':
adamc@885	2514 if (uw_Estrings) {
adamc@885	2515 strcpy(s2, "\\\\");
adamc@885	2516 s2 += 2;
adamc@885	2517 } else
adamc@885	2518 *s2++ = '\\';
adamc@280	2519 break;
adamc@280	2520 default:
adamc@1150	2521 if (isprint((int)c))
adamc@280	2522 *s2++ = c;
adamc@879	2523 else if (uw_Estrings) {
adam@1857	2524 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2525 s2 += 4;
adamc@280	2526 }
adamc@879	2527 else
adam@1689	2528 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2529 }
adamc@280	2530 }
adamc@280	2531
adamc@879	2532 *s2++ = '\'';
adamc@879	2533 strcpy(s2, uw_sqlsuffixString);
adamc@879	2534 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2535 return r;
adamc@280	2536 }
adamc@281	2537
adamc@1011	2538 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2539 char r, s2;
adamc@1011	2540
adamc@1011	2541 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2542
adamc@1011	2543 r = s2 = ctx->heap.front;
adamc@1011	2544 if (uw_Estrings)
adamc@1011	2545 *s2++ = 'E';
adamc@1011	2546 *s2++ = '\'';
adamc@1011	2547
adamc@1011	2548 switch (c) {
adamc@1011	2549 case '\'':
adamc@1011	2550 if (uw_Estrings)
adamc@1011	2551 strcpy(s2, "\\'");
adamc@1011	2552 else
adamc@1011	2553 strcpy(s2, "''");
adamc@1011	2554 s2 += 2;
adamc@1011	2555 break;
adamc@1011	2556 case '\\':
adamc@1011	2557 if (uw_Estrings) {
adamc@1011	2558 strcpy(s2, "\\\\");
adamc@1011	2559 s2 += 2;
adamc@1011	2560 } else
adamc@1011	2561 *s2++ = '\\';
adamc@1011	2562 break;
adamc@1011	2563 default:
adamc@1150	2564 if (isprint((int)c))
adamc@1011	2565 *s2++ = c;
adamc@1011	2566 else if (uw_Estrings) {
adam@1857	2567 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2568 s2 += 4;
adamc@1011	2569 }
adamc@1011	2570 else
adamc@1011	2571 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2572 }
adamc@1011	2573
adamc@1011	2574 *s2++ = '\'';
adamc@1011	2575 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2576 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2577 return r;
adamc@1011	2578 }
adamc@1011	2579
adamc@879	2580 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2581
adam@1867	2582 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2583 char r, s2;
adamc@737	2584 size_t i;
adamc@737	2585
adam@1867	2586 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2587
adamc@737	2588 r = s2 = ctx->heap.front;
adamc@879	2589 if (uw_Estrings)
adamc@879	2590 *s2++ = 'E';
adam@1867	2591 else
adam@1867	2592 *s2++ = 'X';
adamc@737	2593 *s2++ = '\'';
adamc@737	2594
adamc@737	2595 for (i = 0; i < b.size; ++i) {
adam@1867	2596 unsigned char c = b.data[i];
adam@1867	2597
adam@1867	2598 if (uw_Estrings) {
adam@1867	2599 switch (c) {
adam@1867	2600 case '\'':
adamc@885	2601 strcpy(s2, "\\'");
adam@1867	2602 s2 += 2;
adam@1867	2603 break;
adam@1867	2604 case '\\':
adamc@885	2605 strcpy(s2, "\\\\\\\\");
adamc@885	2606 s2 += 4;
adam@1867	2607 break;
adam@1867	2608 default:
adam@1867	2609 if (isprint((int)c))
adam@1867	2610 *s2++ = c;
adam@1867	2611 else {
adam@1867	2612 sprintf(s2, "\\\\%03o", c);
adam@1867	2613 s2 += 5;
adam@1867	2614 }
adamc@737	2615 }
adam@1867	2616 } else {
adam@1867	2617 sprintf(s2, "%02X", c);
adam@1867	2618 s2 += 2;
adamc@737	2619 }
phurst@1981	2620 }
adamc@737	2621
adamc@879	2622 *s2++ = '\'';
adamc@879	2623 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2624 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2625 return r;
adamc@737	2626 }
adamc@737	2627
adamc@682	2628 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2629 int len;
adamc@682	2630 char *r;
adamc@682	2631 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2632
adamc@682	2633 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2634 r = ctx->heap.front;
adamc@879	2635 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2636 ctx->heap.front += len+1;
adamc@682	2637 return r;
adamc@682	2638 }
adamc@682	2639
adamc@682	2640 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2641 int len;
adamc@682	2642 char *r;
adamc@682	2643 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2644
adamc@682	2645 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2646 r = ctx->heap.front;
adamc@682	2647 sprintf(r, "%lld%n", combo, &len);
adamc@682	2648 ctx->heap.front += len+1;
adamc@682	2649 return r;
adamc@682	2650 }
adamc@682	2651
adamc@879	2652 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2653
adamc@682	2654 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2655 int len;
adamc@682	2656 char *r;
adamc@682	2657
adamc@682	2658 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2659 r = ctx->heap.front;
adamc@879	2660 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2661 ctx->heap.front += len+1;
adamc@682	2662 return r;
adamc@682	2663 }
adamc@682	2664
adamc@682	2665 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2666 int len;
adamc@682	2667 char *r;
adamc@682	2668
adamc@682	2669 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2670 r = ctx->heap.front;
adamc@682	2671 sprintf(r, "%u%n", cli, &len);
adamc@682	2672 ctx->heap.front += len+1;
adamc@682	2673 return r;
adamc@682	2674 }
adamc@682	2675
adamc@467	2676 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2677 if (s == NULL)
adamc@467	2678 return "NULL";
adamc@467	2679 else
adamc@467	2680 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2681 }
adamc@467	2682
adamc@311	2683 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2684 if (b == uw_Basis_False)
adamc@281	2685 return "FALSE";
adamc@281	2686 else
adamc@281	2687 return "TRUE";
adamc@281	2688 }
adamc@282	2689
adamc@467	2690 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2691 if (b == NULL)
adamc@467	2692 return "NULL";
adamc@467	2693 else
adamc@467	2694 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2695 }
adamc@467	2696
adamc@439	2697 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2698 size_t len;
adamc@682	2699 char r, s;
adam@1392	2700 struct tm stm = {};
adam@1392	2701 stm.tm_isdst = -1;
adamc@682	2702
adam@1365	2703 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2704 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2705 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2706 if (uw_sql_type_annotations) {
adam@1834	2707 if (t.microseconds) {
adam@1834	2708 r = uw_malloc(ctx, len + 21);
adam@1834	2709 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2710 } else {
adam@1834	2711 r = uw_malloc(ctx, len + 14);
adam@1834	2712 sprintf(r, "'%s'::timestamp", s);
adam@1834	2713 }
adam@1367	2714 } else {
adam@1834	2715 r = uw_malloc(ctx, len + 3);
adam@1834	2716 sprintf(r, "'%s'", s);
adam@1367	2717 }
adamc@682	2718 return r;
adamc@682	2719 } else
adamc@682	2720 return "<Invalid time>";
adamc@682	2721 }
adamc@682	2722
adamc@682	2723 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2724 size_t len;
adamc@439	2725 char *r;
adam@1392	2726 struct tm stm = {};
adam@1392	2727 stm.tm_isdst = -1;
adamc@439	2728
adam@1365	2729 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2730 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2731 r = ctx->heap.front;
adamc@439	2732 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2733 ctx->heap.front += len+1;
adamc@439	2734 return r;
adamc@439	2735 } else
adamc@439	2736 return "<Invalid time>";
adamc@439	2737 }
adamc@439	2738
adam@1364	2739 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2740 size_t len;
adam@1364	2741 char *r;
adam@1392	2742 struct tm stm = {};
adam@1392	2743 stm.tm_isdst = -1;
adam@1364	2744
adam@1365	2745 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2746 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2747 r = ctx->heap.front;
adam@1365	2748 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2749 ctx->heap.front += len;
adam@1365	2750 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2751 ctx->heap.front += 8;
adam@1364	2752 return r;
adam@1364	2753 } else
adam@1364	2754 return "<Invalid time>";
adam@1364	2755 }
adam@1364	2756
adamc@467	2757 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2758 if (t == NULL)
adamc@467	2759 return "NULL";
adamc@467	2760 else
adamc@467	2761 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2762 }
adamc@467	2763
adamc@311	2764 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2765 static uw_Basis_int true = 1;
adamc@311	2766 static uw_Basis_int false = 0;
adamc@282	2767
adamc@311	2768 if (b == uw_Basis_False)
adamc@282	2769 return (char *)&false;
adamc@282	2770 else
adamc@282	2771 return (char *)&true;
adamc@282	2772 }
adamc@284	2773
adamc@311	2774 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2775 int len;
adamc@284	2776 char *r;
adamc@284	2777
adamc@311	2778 uw_check_heap(ctx, INTS_MAX);
adamc@666	2779 r = ctx->heap.front;
adamc@284	2780 sprintf(r, "%lld%n", n, &len);
adamc@666	2781 ctx->heap.front += len+1;
adamc@284	2782 return r;
adamc@284	2783 }
adamc@285	2784
adamc@311	2785 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2786 int len;
adamc@285	2787 char *r;
adamc@285	2788
adamc@311	2789 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2790 r = ctx->heap.front;
adamc@285	2791 sprintf(r, "%g%n", n, &len);
adamc@666	2792 ctx->heap.front += len+1;
adamc@285	2793 return r;
adamc@285	2794 }
adamc@285	2795
adamc@821	2796 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2797 char *r = uw_malloc(ctx, 2);
adamc@821	2798 r[0] = ch;
adamc@821	2799 r[1] = 0;
adamc@821	2800 return r;
adamc@821	2801 }
adamc@821	2802
adamc@311	2803 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2804 if (b == uw_Basis_False)
adamc@285	2805 return "False";
adamc@285	2806 else
adamc@285	2807 return "True";
adamc@285	2808 }
adamc@288	2809
adam@1359	2810 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2811 size_t len;
adam@1352	2812 char *r;
adam@1392	2813 struct tm stm = {};
adam@1392	2814 stm.tm_isdst = -1;
adam@1352	2815
adam@1365	2816 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2817 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2818 r = ctx->heap.front;
adam@1352	2819 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2820 ctx->heap.front += len+1;
adam@1352	2821 return r;
adam@1352	2822 } else
adam@1352	2823 return "<Invalid time>";
adam@1352	2824 }
adam@1352	2825
adam@1629	2826 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2827 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2828 }
adam@1629	2829
adamc@311	2830 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2831 char *endptr;
adamc@311	2832 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2833
adamc@288	2834 if (s != '\0' && endptr == '\0') {
adamc@311	2835 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2836 *r = n;
adamc@288	2837 return r;
adamc@288	2838 } else
adamc@288	2839 return NULL;
adamc@288	2840 }
adamc@289	2841
adamc@311	2842 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2843 char *endptr;
adamc@311	2844 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2845
adamc@289	2846 if (s != '\0' && endptr == '\0') {
adamc@311	2847 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2848 *r = n;
adamc@289	2849 return r;
adamc@289	2850 } else
adamc@289	2851 return NULL;
adamc@289	2852 }
adamc@289	2853
adamc@821	2854 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2855 if (s[0] == 0) {
adamc@821	2856 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2857 r[0] = 0;
adamc@821	2858 return r;
adamc@821	2859 } else if (s[1] != 0)
adamc@821	2860 return NULL;
adamc@821	2861 else {
adamc@821	2862 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2863 r[0] = s[0];
adamc@821	2864 return r;
adamc@821	2865 }
adamc@821	2866 }
adamc@821	2867
adamc@311	2868 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2869 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2870 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2871
adamc@289	2872 if (!strcasecmp (s, "True"))
adamc@289	2873 return &true;
adamc@289	2874 else if (!strcasecmp (s, "False"))
adamc@289	2875 return &false;
adamc@289	2876 else
adamc@289	2877 return NULL;
adamc@289	2878 }
adamc@292	2879
adamc@436	2880 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2881 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2882 struct tm stm = {};
adam@1392	2883 stm.tm_isdst = -1;
adamc@436	2884
adamc@439	2885 if (dot) {
adamc@439	2886 *dot = 0;
adamc@439	2887 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2888 *dot = '.';
adamc@439	2889 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2890 r->seconds = mktime(&stm);
adam@1365	2891 r->microseconds = 0;
adamc@439	2892 return r;
adamc@439	2893 }
adamc@439	2894 else {
adamc@439	2895 *dot = '.';
adamc@439	2896 return NULL;
adamc@439	2897 }
adamc@436	2898 }
adamc@439	2899 else {
adamc@439	2900 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2901 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2902 r->seconds = mktime(&stm);
adam@1365	2903 r->microseconds = 0;
adamc@439	2904 return r;
adamc@439	2905 }
adamc@439	2906 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2907 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2908 r->seconds = mktime(&stm);
adam@1365	2909 r->microseconds = 0;
adamc@439	2910 return r;
adam@1632	2911 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2912 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2913 r->seconds = mktime(&stm);
adam@1632	2914 r->microseconds = 0;
adam@1632	2915 return r;
adamc@439	2916 }
adamc@439	2917 else
adamc@439	2918 return NULL;
adamc@439	2919 }
adamc@436	2920 }
adamc@436	2921
adam@1352	2922 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2923 char *end = strchr(s, 0);
adam@1374	2924 struct tm stm = {};
adam@1392	2925 stm.tm_isdst = -1;
adam@1352	2926
adam@1352	2927 if (strptime(s, fmt, &stm) == end) {
adam@1352	2928 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2929 r->seconds = mktime(&stm);
adam@1365	2930 r->microseconds = 0;
adam@1352	2931 return r;
adam@1352	2932 }
adam@1352	2933 else
adam@1352	2934 return NULL;
adam@1352	2935 }
adam@1352	2936
adamc@311	2937 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2938 char *endptr;
adamc@311	2939 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2940
adamc@292	2941 if (s != '\0' && endptr == '\0')
adamc@292	2942 return n;
adamc@292	2943 else
adam@1444	2944 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2945 }
adamc@293	2946
adamc@682	2947 #include <errno.h>
adamc@682	2948
adamc@678	2949 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2950 unsigned long long n;
adamc@682	2951
adamc@682	2952 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2953 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	2954 else {
adamc@682	2955 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2956 return ch;
adamc@682	2957 }
adamc@682	2958 }
adamc@682	2959
adamc@682	2960 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2961 char *endptr;
adamc@682	2962 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2963
adamc@678	2964 if (s != '\0' && endptr == '\0')
adamc@678	2965 return n;
adamc@678	2966 else
adam@1444	2967 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	2968 }
adamc@678	2969
adamc@311	2970 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2971 char *endptr;
adamc@311	2972 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2973
adamc@293	2974 if (s != '\0' && endptr == '\0')
adamc@293	2975 return n;
adamc@293	2976 else
adam@1444	2977 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2978 }
adamc@293	2979
adamc@821	2980 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2981 if (s[0] == 0)
adamc@821	2982 return 0;
adamc@821	2983 else if (s[1] != 0)
adam@1444	2984 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	2985 else
adamc@821	2986 return s[0];
adamc@821	2987 }
adamc@821	2988
adamc@311	2989 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2990 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2991 return uw_Basis_True;
adamc@296	2992 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2993 return uw_Basis_False;
adamc@293	2994 else
adam@1444	2995 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2996 }
adamc@436	2997
adam@1352	2998 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	2999 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	3000 struct tm stm = {};
adam@1392	3001 stm.tm_isdst = -1;
adam@1352	3002
adam@1352	3003 if (dot) {
adam@1352	3004 *dot = 0;
adam@1352	3005 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	3006 *dot = '.';
adam@1410	3007 char usec[] = "000000";
adam@1410	3008 int len = strlen(dot+1);
adam@1410	3009 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	3010 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	3011 return r;
adam@1352	3012 }
adam@1352	3013 else {
adam@1352	3014 *dot = '.';
adam@1444	3015 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3016 }
adam@1352	3017 }
adam@1352	3018 else {
adam@1352	3019 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3020 uw_Basis_time r = { mktime(&stm) };
adam@1365	3021 return r;
adam@1352	3022 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3023 uw_Basis_time r = { mktime(&stm) };
adam@1365	3024 return r;
adam@1352	3025 } else
adam@1444	3026 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3027 }
adam@1352	3028 }
adam@1352	3029
adamc@436	3030 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	3031 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	3032 struct tm stm = {};
adam@1392	3033 stm.tm_isdst = -1;
adamc@436	3034
adamc@438	3035 if (dot) {
adamc@438	3036 *dot = 0;
adamc@438	3037 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	3038 *dot = '.';
adam@1365	3039 {
adam@1365	3040 uw_Basis_time r = { mktime(&stm) };
adam@1365	3041 return r;
adam@1365	3042 }
adamc@438	3043 }
adamc@438	3044 else {
adamc@438	3045 *dot = '.';
adam@1444	3046 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3047 }
adamc@438	3048 }
adamc@438	3049 else {
adam@1365	3050 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3051 uw_Basis_time r = { mktime(&stm) };
adam@1365	3052 return r;
adam@1365	3053 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3054 uw_Basis_time r = { mktime(&stm) };
adam@1365	3055 return r;
adam@1632	3056 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3057 uw_Basis_time r = { mktime(&stm) };
adam@1632	3058 return r;
adam@1365	3059 } else
adam@1444	3060 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3061 }
adamc@436	3062 }
adamc@457	3063
adam@1352	3064 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3065 char *end = strchr(s, 0);
adamc@939	3066 struct tm stm = {};
adam@1392	3067 stm.tm_isdst = -1;
adamc@939	3068
adam@1365	3069 if (strptime(s, fmt, &stm) == end) {
adam@1365	3070 uw_Basis_time r = { mktime(&stm) };
adam@1365	3071 return r;
adam@1365	3072 } else
adam@1444	3073 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3074 }
adamc@939	3075
adamc@742	3076 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3077 char *r = ctx->heap.front;
adamc@742	3078 uw_Basis_blob b = {len, r};
adamc@742	3079
adamc@742	3080 uw_check_heap(ctx, len);
adamc@742	3081
adam@1992	3082 if (s[0] == '\\' && s[1] == 'x') {
adam@1992	3083 s += 2;
adam@1992	3084
adam@1992	3085 while (*s) {
adam@1992	3086 int n;
adam@1992	3087 sscanf(s, "%02x", &n);
adam@1992	3088 *r++ = n;
adam@1992	3089 s += 2;
adam@1992	3090 }
adam@1992	3091 } else {
adam@1992	3092 while (*s) {
adam@1992	3093 if (s[0] == '\\') {
adam@1992	3094 if (s[1] == '\\') {
adam@1992	3095 *r++ = '\\';
adam@1992	3096 s += 2;
adam@1992	3097 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adam@1992	3098 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adam@1992	3099 s += 4;
adam@1992	3100 }
adam@1992	3101 else {
adam@1992	3102 *r++ = '\\';
adam@1992	3103 ++s;
adam@1992	3104 }
adam@1992	3105 } else {
adam@1992	3106 *r++ = s[0];
adamc@742	3107 ++s;
adamc@742	3108 }
adamc@742	3109 }
adamc@742	3110 }
adamc@742	3111
adamc@742	3112 b.size = r - ctx->heap.front;
adamc@742	3113 ctx->heap.front = r;
adam@1992	3114
adamc@742	3115 return b;
adamc@742	3116 }
adamc@742	3117
adam@1402	3118 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3119
adamc@463	3120 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3121 int len = strlen(c);
adamc@854	3122 char *p = ctx->outHeaders.start;
adamc@474	3123
adamc@1134	3124 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3125 char *p2;
adamc@474	3126 p += 13;
adamc@474	3127 p2 = strchr(p, '=');
adamc@474	3128
adamc@474	3129 if (p2) {
adamc@474	3130 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3131
adamc@474	3132 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3133 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3134 return NULL;
adamc@1052	3135 else {
adamc@1052	3136 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3137 memcpy(ret, p2+1, sz);
adamc@1052	3138 ret[sz] = 0;
adamc@1052	3139 return ret;
adamc@1052	3140 }
adamc@474	3141 }
adamc@474	3142 }
adamc@474	3143 }
adamc@463	3144
adamc@1134	3145 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3146 char *p2;
adamc@1051	3147
adamc@854	3148 while (1) {
adamc@1051	3149 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3150 if ((p2 = strchr(p, ';'))) {
adamc@1051	3151 size_t n = p2 - (p + len);
adamc@1051	3152 char *r = uw_malloc(ctx, n);
adamc@1051	3153 memcpy(r, p + 1 + len, n-1);
adamc@1051	3154 r[n-1] = 0;
adamc@1051	3155 return r;
adamc@1051	3156 } else
adamc@1051	3157 return p + 1 + len;
adamc@1134	3158 } else if ((p = strchr(p, ';')))
adamc@854	3159 p += 2;
adamc@463	3160 else
adamc@463	3161 return NULL;
adamc@463	3162 }
adamc@463	3163 }
adamc@792	3164
adamc@792	3165 return NULL;
adamc@457	3166 }
adamc@462	3167
adam@1877	3168 static void set_cookie(uw_context ctx) {
adam@1877	3169 if (ctx->usedSig)
adam@1877	3170 ctx->needsResig = 1;
adam@1877	3171 }
adam@1877	3172
adamc@1050	3173 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	3174 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3175 uw_write_header(ctx, c);
adamc@462	3176 uw_write_header(ctx, "=");
adamc@462	3177 uw_write_header(ctx, v);
adamc@466	3178 uw_write_header(ctx, "; path=");
adamc@466	3179 uw_write_header(ctx, prefix);
adamc@1050	3180 if (expires) {
adamc@1050	3181 char formatted[30];
adam@1392	3182 struct tm tm = {};
adam@1392	3183 tm.tm_isdst = -1;
adamc@1050	3184
adam@1365	3185 gmtime_r(&expires->seconds, &tm);
adamc@1050	3186
adamc@1050	3187 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3188
adamc@1050	3189 uw_write_header(ctx, "; expires=");
adamc@1050	3190 uw_write_header(ctx, formatted);
adamc@1050	3191 }
adamc@1050	3192 if (secure)
adamc@1050	3193 uw_write_header(ctx, "; secure");
adamc@462	3194 uw_write_header(ctx, "\r\n");
adam@1877	3195 set_cookie(ctx);
adamc@462	3196
adamc@462	3197 return uw_unit_v;
adamc@462	3198 }
adamc@667	3199
adamc@1050	3200 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3201 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3202 uw_write_header(ctx, c);
adamc@1050	3203 uw_write_header(ctx, "=; path=");
adamc@1050	3204 uw_write_header(ctx, prefix);
adamc@1052	3205 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3206 set_cookie(ctx);
adamc@1050	3207
adamc@1050	3208 return uw_unit_v;
adamc@1050	3209 }
adamc@1050	3210
adamc@1113	3211 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3212
adamc@682	3213 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3214 unsigned i;
adamc@682	3215 delta *d;
adamc@671	3216
adamc@682	3217 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3218 if (ctx->deltas[i].client == client)
adamc@682	3219 return &ctx->deltas[i];
adamc@671	3220
adamc@682	3221 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3222 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3223 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3224
adamc@682	3225 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3226 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3227 }
adamc@671	3228
adamc@682	3229 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3230 d->client = client;
adam@1369	3231 uw_buffer_reset(&d->msgs);
adamc@682	3232 return d;
adamc@671	3233 }
adamc@671	3234
adamc@668	3235 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3236 if (ctx->client == NULL)
adamc@682	3237 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3238
adamc@682	3239 return new_channel(ctx->client);
adamc@668	3240 }
adamc@668	3241
adamc@668	3242 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3243 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3244 size_t len;
adamc@682	3245 int preLen;
adamc@682	3246 char pre[INTS_MAX + 2];
adamc@668	3247
adamc@682	3248 len = strlen(msg);
adamc@682	3249
adamc@682	3250 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3251
adam@1369	3252 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3253 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3254 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3255
adamc@671	3256 return uw_unit_v;
adamc@668	3257 }
adamc@671	3258
adam@1327	3259 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3260 int i;
adamc@1131	3261 cleanup *cl;
adamc@1131	3262
adamc@1131	3263 if (ctx->client)
adamc@1131	3264 release_client(ctx->client);
adamc@1131	3265
adamc@1131	3266 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3267 cl->func(cl->arg);
adamc@1131	3268
adamc@1131	3269 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3270
adamc@1131	3271 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3272 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3273 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3274
adamc@1131	3275 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3276 if (ctx->transactionals[i].free)
adam@1327	3277 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3278
adam@1941	3279 if (ctx->app && ctx->transaction_started) {
adam@1941	3280 ctx->transaction_started = 0;
adam@1941	3281 return ctx->app->db_rollback(ctx);
adam@1941	3282 } else
adam@1941	3283 return 0;
adamc@1131	3284 }
adamc@1131	3285
adam@1956	3286 const char uw_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@1956	3287 const char uw_begin_html5[] = "<!DOCTYPE html><html>";
adam@1728	3288
adam@1877	3289 extern int uw_hash_blocksize;
adam@1877	3290
adam@1877	3291 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3292
adam@1877	3293 static char find_sig(char haystack) {
adam@1877	3294 int i;
adam@1877	3295 char *s = strstr(haystack, sig_intro);
adam@1877	3296
adam@1877	3297 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3298 return NULL;
phurst@1981	3299
adam@1877	3300 s += sizeof sig_intro - 1;
adam@1877	3301
adam@1877	3302 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3303 if (!isxdigit((int)s[i]))
adam@1877	3304 return NULL;
adam@1877	3305
adam@1877	3306 if (s[i] != '"')
adam@1877	3307 return NULL;
adam@1877	3308
adam@1877	3309 return s;
adam@1877	3310 }
adam@1877	3311
adam@2033	3312 static pthread_mutex_t message_send_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2033	3313
adam@1938	3314 int uw_commit(uw_context ctx) {
adamc@1104	3315 int i;
adam@1877	3316 char *sig;
adamc@1104	3317
adamc@1131	3318 if (uw_has_error(ctx)) {
adam@1327	3319 uw_rollback(ctx, 0);
adam@1938	3320 return 0;
adamc@1131	3321 }
adamc@1131	3322
adamc@1104	3323 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3324 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3325 if (ctx->transactionals[i].commit) {
adamc@1083	3326 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3327 if (uw_has_error(ctx)) {
adam@1327	3328 uw_rollback(ctx, 0);
adam@1938	3329 return 0;
adamc@1131	3330 }
adamc@1131	3331 }
adamc@771	3332
adam@2033	3333 // Here's an important lock to provide the abstraction that all messages from one transaction are sent as an atomic unit.
adam@2033	3334 if (ctx->used_deltas > 0)
adam@2033	3335 pthread_mutex_lock(&message_send_mutex);
adam@2033	3336
adam@2000	3337 if (ctx->transaction_started) {
adam@2000	3338 int code = ctx->app->db_commit(ctx);
adam@2000	3339
adam@2000	3340 if (code) {
adam@2033	3341 if (ctx->used_deltas > 0)
adam@2033	3342 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3343
adam@2000	3344 if (ctx->client)
adam@2000	3345 release_client(ctx->client);
adam@2000	3346
adam@2000	3347 if (code == -1) {
adam@2000	3348 // This case is for a serialization failure, which is not really an "error."
adam@2000	3349 // The transaction will restart, so we should rollback any transactionals
adam@2000	3350 // that triggered above.
adam@2000	3351
adam@2000	3352 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3353 if (ctx->transactionals[i].rollback != NULL)
adam@2000	3354 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2000	3355
adam@2000	3356 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3357 if (ctx->transactionals[i].free)
adam@2000	3358 ctx->transactionals[i].free(ctx->transactionals[i].data, 1);
adam@2000	3359
grrwlf@2030	3360 return 1;
adam@2000	3361 }
adam@2000	3362
adam@2000	3363 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3364 if (ctx->transactionals[i].free)
adam@2000	3365 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3366
adam@2000	3367 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@2000	3368 return 0;
adam@2000	3369 }
adam@2000	3370 }
adam@2000	3371
adamc@1104	3372 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3373 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3374 if (ctx->transactionals[i].commit) {
adamc@1083	3375 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3376 if (uw_has_error(ctx)) {
adam@2033	3377 if (ctx->used_deltas > 0)
adam@2033	3378 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3379
adam@2033	3380 if (ctx->client)
adam@2033	3381 release_client(ctx->client);
adam@2033	3382
adam@2033	3383 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3384 if (ctx->transactionals[i].rollback != NULL)
adam@2033	3385 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2033	3386
adam@2033	3387 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3388 if (ctx->transactionals[i].free)
adam@2033	3389 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3390
adam@1938	3391 return 0;
adamc@1131	3392 }
adamc@1131	3393 }
adamc@1131	3394
adamc@682	3395 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3396 delta *d = &ctx->deltas[i];
adamc@682	3397 client *c = find_client(d->client);
adamc@682	3398
adam@1551	3399 assert (c != NULL);
adam@1551	3400 assert(c->mode == USED);
adamc@682	3401
adam@1447	3402 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3403 }
adamc@682	3404
adam@2033	3405 if (ctx->used_deltas > 0)
adam@2033	3406 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3407
adamc@682	3408 if (ctx->client)
adamc@685	3409 release_client(ctx->client);
adamc@771	3410
adamc@1104	3411 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3412 if (ctx->transactionals[i].free)
adam@1327	3413 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3414
vshabanoff@1726	3415 uw_check(ctx, 1);
vshabanoff@1726	3416 *ctx->page.front = 0;
adam@1413	3417
adam@1956	3418 if (!ctx->returning_indirectly
adam@1956	3419 && (ctx->app->is_html5
adam@1956	3420 ? !strncmp(ctx->page.start, uw_begin_html5, sizeof uw_begin_html5 - 1)
adam@1956	3421 : !strncmp(ctx->page.start, uw_begin_xhtml, sizeof uw_begin_xhtml - 1))) {
adam@1728	3422 char *s;
adam@1728	3423
adam@1728	3424 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1956	3425 s = ctx->page.start + (ctx->app->is_html5 ? sizeof uw_begin_html5 - 1 : sizeof uw_begin_xhtml - 1);
adam@1728	3426 s = strchr(s, '<');
adam@1728	3427 if (s == NULL) {
adam@1728	3428 // Weird. Document has no tags!
adam@1728	3429
adam@1728	3430 uw_write(ctx, "<head></head><body></body>");
adam@1728	3431 uw_check(ctx, 1);
adam@1728	3432 *ctx->page.front = 0;
adam@1728	3433 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3434 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3435
adam@1729	3436 // Any freeform JavaScript to include?
adam@1729	3437 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3438 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3439 size_t lenP = lenH + 40 + len;
adam@1729	3440 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3441
adam@1729	3442 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3443 start += ctx->page.start - oldPage;
adam@1729	3444 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3445 ctx->page.front += lenP;
adam@1729	3446 memcpy(start, ctx->script_header, lenH);
adam@1729	3447 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3448 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3449 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3450 } else {
adam@1729	3451 size_t lenH = strlen(ctx->script_header);
adam@1729	3452 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3453
adam@1729	3454 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3455 start += ctx->page.start - oldPage;
adam@1729	3456 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3457 ctx->page.front += lenH;
adam@1729	3458 memcpy(start, ctx->script_header, lenH);
adam@1729	3459 }
adam@1728	3460 } else {
adam@1728	3461 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3462
adam@1729	3463 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3464 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3465 size_t lenP = lenH + 53 + len;
adam@1729	3466 char start = s, oldPage = ctx->page.start;
adam@1729	3467
adam@1729	3468 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3469 start += ctx->page.start - oldPage;
adam@1729	3470 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3471 ctx->page.front += lenP;
adam@1729	3472 memcpy(start, "<head>", 6);
adam@1729	3473 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3474 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3475 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3476 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3477 } else {
adam@1729	3478 size_t lenH = strlen(ctx->script_header);
adam@1729	3479 size_t lenP = lenH + 13;
adam@1729	3480 char start = s, oldPage = ctx->page.start;
adam@1729	3481
adam@1729	3482 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3483 start += ctx->page.start - oldPage;
adam@1729	3484 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3485 ctx->page.front += lenP;
adam@1729	3486 memcpy(start, "<head>", 6);
adam@1729	3487 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3488 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3489 }
adamc@916	3490 }
adamc@916	3491 }
adam@1877	3492
adam@1877	3493 if (ctx->needsResig) {
adam@1877	3494 sig = find_sig(ctx->page.start);
adam@1877	3495 if (sig) {
adam@1877	3496 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3497
adam@1877	3498 do {
adam@1877	3499 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3500 sig = find_sig(sig);
adam@1877	3501 } while (sig);
adam@1877	3502 }
adam@1877	3503 }
adam@1938	3504
adam@1938	3505 return 0;
adamc@671	3506 }
adamc@671	3507
adamc@683	3508
adamc@1113	3509 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3510
adam@2001	3511 int uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3512 uw_callback_with_retry free) {
adamc@771	3513 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3514 if (ctx->used_transactionals+1 > uw_transactionals_max)
adam@2001	3515 // Exceeded limit on number of transactionals.
adam@2001	3516 return -1;
adamc@1084	3517 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3518 ++ctx->n_transactionals;
adamc@771	3519 }
adamc@771	3520
adamc@771	3521 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3522 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3523 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3524 ctx->transactionals[ctx->used_transactionals++].free = free;
adam@2001	3525
adam@2001	3526 return 0;
adamc@771	3527 }
adamc@771	3528
adamc@683	3529
adamc@683	3530 // "Garbage collection"
adamc@683	3531
adamc@1121	3532 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3533 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3534
adamc@1121	3535 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3536 int r = setjmp(ctx->jmp_buf);
adamc@683	3537
adamc@1121	3538 if (r == 0)
adamc@1121	3539 uw_do_expunge(ctx, cli, data);
adamc@1121	3540 else
adamc@1121	3541 ctx->app->db_rollback(ctx);
adamc@1121	3542
adamc@1121	3543 uw_post_expunge(ctx, data);
adamc@683	3544
adamc@683	3545 return r;
adamc@683	3546 }
adamc@683	3547
adamc@683	3548 void uw_prune_clients(uw_context ctx) {
adamc@683	3549 client c, next, *prev = NULL;
adamc@683	3550 time_t cutoff;
adamc@683	3551
adamc@1094	3552 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3553
adamc@683	3554 pthread_mutex_lock(&clients_mutex);
adam@1707	3555 pruning_thread = pthread_self();
adam@1707	3556 pruning_thread_initialized = 1;
adamc@683	3557
adamc@683	3558 for (c = clients_used; c; c = next) {
adamc@683	3559 next = c->next;
adamc@683	3560 pthread_mutex_lock(&c->lock);
adamc@685	3561 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3562 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3563 if (prev)
adamc@683	3564 prev->next = next;
adamc@683	3565 else
adamc@683	3566 clients_used = next;
adamc@683	3567 while (fk == UNLIMITED_RETRY) {
adam@1941	3568 uw_reset(ctx);
adamc@1121	3569 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3570 if (fk == UNLIMITED_RETRY)
adamc@684	3571 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3572 }
adamc@684	3573 if (fk == SUCCESS)
adamc@684	3574 free_client(c);
adamc@1121	3575 else
adamc@856	3576 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3577 }
adamc@683	3578 else
adamc@683	3579 prev = c;
adamc@683	3580 pthread_mutex_unlock(&c->lock);
adamc@683	3581 }
adamc@683	3582
adamc@683	3583 pthread_mutex_unlock(&clients_mutex);
adamc@683	3584 }
adamc@687	3585
adamc@687	3586 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3587 int r = setjmp(ctx->jmp_buf);
adamc@687	3588
adamc@687	3589 if (r == 0) {
adam@1936	3590 uw_ensure_transaction(ctx);
adamc@1094	3591 ctx->app->initializer(ctx);
adamc@1094	3592 if (ctx->app->db_commit(ctx))
adamc@687	3593 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3594 }
adamc@687	3595
adamc@687	3596 return r;
adamc@687	3597 }
adamc@717	3598
adamc@1065	3599 static int url_bad(uw_Basis_string s) {
adamc@1065	3600 for (; *s; ++s)
adamc@1153	3601 if (!isgraph((int)*s))
adamc@1065	3602 return 1;
adamc@1065	3603
adamc@1065	3604 return 0;
adamc@1065	3605 }
adamc@1065	3606
adamc@717	3607 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3608 if (url_bad(s))
adamc@1065	3609 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3610 if (ctx->app->check_url(s))
adamc@770	3611 return s;
adamc@770	3612 else
adamc@770	3613 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3614 }
adamc@734	3615
adamc@770	3616 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3617 if (url_bad(s))
adamc@1065	3618 return NULL;
adamc@1094	3619 if (ctx->app->check_url(s))
adamc@770	3620 return s;
adamc@770	3621 else
adamc@770	3622 return NULL;
adamc@770	3623 }
adamc@770	3624
adam@1465	3625 static int mime_format(const char *s) {
adamc@770	3626 for (; *s; ++s)
grrwlf@2024	3627 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.' && *s != '+')
adamc@770	3628 return 0;
adamc@770	3629
adamc@770	3630 return 1;
adamc@770	3631 }
adamc@770	3632
adamc@741	3633 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3634 if (!mime_format(s))
adamc@770	3635 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3636
adamc@1094	3637 if (ctx->app->check_mime(s))
adamc@770	3638 return s;
adamc@770	3639 else
adamc@770	3640 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3641 }
adamc@770	3642
adamc@770	3643 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3644 if (!mime_format(s))
adamc@770	3645 return NULL;
adamc@770	3646
adamc@1094	3647 if (ctx->app->check_mime(s))
adamc@770	3648 return s;
adamc@770	3649 else
adamc@770	3650 return NULL;
adamc@741	3651 }
adamc@741	3652
adam@1465	3653 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3654 if (!mime_format(s))
adam@1465	3655 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3656
adam@1465	3657 if (ctx->app->check_requestHeader(s))
adam@1465	3658 return s;
adam@1465	3659 else
adam@1465	3660 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3661 }
adam@1465	3662
adam@1465	3663 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3664 if (!mime_format(s))
adam@1465	3665 return NULL;
adam@1465	3666
adam@1465	3667 if (ctx->app->check_requestHeader(s))
adam@1465	3668 return s;
adam@1465	3669 else
adam@1465	3670 return NULL;
adam@1465	3671 }
adam@1465	3672
adam@1465	3673 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3674 if (!mime_format(s))
adam@1465	3675 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3676
adam@1465	3677 if (ctx->app->check_responseHeader(s))
adam@1465	3678 return s;
adam@1465	3679 else
adam@1465	3680 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3681 }
adam@1465	3682
adam@1799	3683 static int envVar_format(const char *s) {
adam@1799	3684 for (; *s; ++s)
adam@1799	3685 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3686 return 0;
adam@1799	3687
adam@1799	3688 return 1;
adam@1799	3689 }
adam@1799	3690
adam@1465	3691 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3692 if (!envVar_format(s))
adam@1465	3693 return NULL;
adam@1465	3694
adam@1465	3695 if (ctx->app->check_responseHeader(s))
adam@1465	3696 return s;
adam@1465	3697 else
adam@1465	3698 return NULL;
adam@1465	3699 }
adam@1465	3700
adam@1799	3701 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3702 if (!envVar_format(s))
adam@1799	3703 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3704
adam@1799	3705 if (ctx->app->check_envVar(s))
adam@1799	3706 return s;
adam@1799	3707 else
adam@1799	3708 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3709 }
adam@1799	3710
adam@1799	3711 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3712 if (!mime_format(s))
adam@1799	3713 return NULL;
adam@1799	3714
adam@1799	3715 if (ctx->app->check_envVar(s))
adam@1799	3716 return s;
adam@1799	3717 else
adam@1799	3718 return NULL;
adam@1799	3719 }
adam@1799	3720
adam@1465	3721 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3722 return uw_Basis_requestHeader(ctx, name);
adam@1465	3723 }
adam@1465	3724
adam@1465	3725 static int mime_value_format(const char *s) {
adam@1465	3726 for (; *s; ++s)
adam@1465	3727 if (s == '\r' \|\| s == '\n')
adam@1465	3728 return 0;
adam@1465	3729
adam@1465	3730 return 1;
adam@1465	3731 }
adam@1465	3732
adam@1465	3733 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3734 if (!mime_value_format(value))
adam@1465	3735 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3736
adam@1465	3737 uw_write_header(ctx, name);
adam@1465	3738 uw_write_header(ctx, ": ");
adam@1465	3739 uw_write_header(ctx, value);
adam@1465	3740 uw_write_header(ctx, "\r\n");
adam@1465	3741
adam@1465	3742 return uw_unit_v;
adam@1465	3743 }
adam@1465	3744
adam@1799	3745 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1993	3746 if (ctx->get_env)
adam@1993	3747 return ctx->get_env(ctx->get_env_data, name);
adam@1993	3748 else
adam@1994	3749 return getenv(name);
adam@1799	3750 }
adam@1799	3751
adamc@734	3752 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3753 return s ? s : "";
adamc@734	3754 }
adamc@734	3755
adamc@734	3756 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3757 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3758 int i;
phurst@1981	3759
adamc@734	3760 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3761 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3762
adamc@734	3763 return r;
adamc@734	3764 }
adamc@734	3765
adam@1512	3766 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3767 * optimizations that would enable timing attacks. See:
adam@1512	3768 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3769 */
adam@1512	3770 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3771 int i, x = 0, len1 = strlen(s1);
adam@1512	3772
adam@1512	3773 if (len1 != strlen(s2)) return 0;
adam@1512	3774
adam@1512	3775 for (i = 0; i < len1; ++i) {
adam@1512	3776 __asm__ __volatile__ ("");
adam@1512	3777 x \|= s1[i] ^ s2[i];
adam@1512	3778 }
adam@1512	3779
adam@1512	3780 return x == 0;
adam@1512	3781 }
adam@1512	3782
adamc@734	3783 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3784 ctx->usedSig = 1;
adamc@1094	3785 return ctx->app->cookie_sig(ctx);
adamc@734	3786 }
adamc@737	3787
adamc@737	3788 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3789 return f.name;
adamc@737	3790 }
adamc@737	3791
adamc@740	3792 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3793 return f.type;
adamc@740	3794 }
adamc@740	3795
adamc@745	3796 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3797 return b.size;
adamc@745	3798 }
adamc@745	3799
adamc@1119	3800 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3801 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3802
adamc@1119	3803 return b;
adamc@1119	3804 }
adamc@1119	3805
adamc@737	3806 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3807 return f.data;
adamc@737	3808 }
adamc@741	3809
adam@1347	3810 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3811 return pb.type;
adam@1347	3812 }
adam@1347	3813
adam@1347	3814 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3815 return pb.data;
adam@1347	3816 }
adam@1347	3817
adam@1471	3818 static char *old_headers(uw_context ctx) {
adam@1471	3819 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3820 return NULL;
adam@1471	3821 else {
adam@1471	3822 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3823
adam@1471	3824 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3825 return NULL;
adam@1471	3826 else {
adam@1471	3827 s = strchr(s+15, '\n');
adam@1471	3828 if (s == NULL)
adam@1471	3829 return NULL;
adam@1471	3830 else
adam@1471	3831 return uw_strdup(ctx, s+1);
adam@1471	3832 }
adam@1471	3833 }
adam@1471	3834 }
adam@1471	3835
adamc@741	3836 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3837 cleanup *cl;
adamc@741	3838 int len;
adam@1471	3839 char *oldh;
adamc@741	3840
adam@1451	3841 if (!ctx->allowed_to_return_indirectly)
adam@1451	3842 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3843
adamc@1065	3844 ctx->returning_indirectly = 1;
adam@1471	3845 oldh = old_headers(ctx);
adam@1369	3846 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3847 uw_buffer_reset(&ctx->page);
adamc@741	3848
adamc@856	3849 uw_write_header(ctx, on_success);
adamc@856	3850 uw_write_header(ctx, "Content-Type: ");
adamc@741	3851 uw_write_header(ctx, mimeType);
adam@1934	3852 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369	3853 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3854 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3855 ctx->outHeaders.front += len;
adamc@1066	3856 uw_write_header(ctx, "\r\n");
adam@1471	3857 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3858
adam@1369	3859 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3860
adamc@741	3861 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3862 cl->func(cl->arg);
adamc@741	3863
adamc@741	3864 ctx->cleanup_front = ctx->cleanup;
adamc@741	3865
adamc@1065	3866 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3867 }
adamc@1065	3868
adam@2046	3869 void uw_replace_page(uw_context ctx, const char *data, size_t size) {
adam@2046	3870 uw_buffer_reset(&ctx->page);
adam@2046	3871 ctx_uw_buffer_append(ctx, "page", &ctx->page, data, size);
adam@2046	3872 }
adam@2046	3873
adam@1932	3874 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932	3875 cleanup *cl;
adam@1932	3876 int len;
adam@1932	3877 char *oldh;
adam@1932	3878
adam@1932	3879 if (!ctx->allowed_to_return_indirectly)
adam@1932	3880 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932	3881
adam@1932	3882 ctx->returning_indirectly = 1;
adam@1932	3883 oldh = old_headers(ctx);
adam@1932	3884 uw_buffer_reset(&ctx->outHeaders);
adam@1932	3885
adam@1932	3886 uw_write_header(ctx, on_success);
adam@1932	3887 uw_write_header(ctx, "Content-Type: ");
adam@1932	3888 uw_write_header(ctx, mimeType);
adam@1934	3889 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932	3890 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932	3891 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932	3892 ctx->outHeaders.front += len;
adam@1932	3893 uw_write_header(ctx, "\r\n");
adam@1932	3894 if (oldh) uw_write_header(ctx, oldh);
adam@1932	3895
adam@1932	3896 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932	3897 cl->func(cl->arg);
adam@1932	3898
adam@1932	3899 ctx->cleanup_front = ctx->cleanup;
adam@1932	3900
adam@1932	3901 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932	3902 }
adam@1932	3903
adamc@1065	3904 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3905 cleanup *cl;
adamc@1066	3906 char *s;
adam@1471	3907 char *oldh;
adamc@1065	3908
adam@1451	3909 if (!ctx->allowed_to_return_indirectly)
adam@1451	3910 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3911
adamc@1065	3912 ctx->returning_indirectly = 1;
adam@1471	3913 oldh = old_headers(ctx);
adam@1369	3914 uw_buffer_reset(&ctx->page);
adam@1369	3915 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3916 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3917 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3918 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3919
adam@1409	3920 if (on_success[0])
adam@1409	3921 uw_write_header(ctx, on_redirect);
adam@1409	3922 else
adam@1409	3923 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3924 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3925 if (s) {
adamc@1066	3926 char *s2;
adam@1409	3927 if (s[0] == '\n') ++s;
adam@1409	3928 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3929 *s2 = 0;
adamc@1066	3930 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3931 uw_write_header(ctx, s);
adamc@1066	3932 uw_write_header(ctx, "\n");
adamc@1066	3933 }
adamc@1066	3934 }
adamc@1066	3935 }
adamc@1066	3936
adamc@1065	3937 uw_write_header(ctx, "Location: ");
adamc@1065	3938 uw_write_header(ctx, url);
adamc@1065	3939 uw_write_header(ctx, "\r\n\r\n");
adam@1471	3940 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	3941
adamc@1065	3942 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3943 cl->func(cl->arg);
adamc@1065	3944
adamc@1065	3945 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3946
adamc@1065	3947 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3948 }
adamc@874	3949
adamc@874	3950 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	3951 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	3952
adamc@874	3953 for (; *s; ++s) {
adamc@874	3954 if (s[0] == '\'') {
adamc@874	3955 *r++ = '\'';
adamc@874	3956 for (++s; *s; ++s) {
adamc@874	3957 if (s[0] == '\'') {
adamc@874	3958 *r++ = '\'';
adamc@874	3959 break;
adamc@874	3960 } else if (s[0] == '\\') {
adam@1467	3961 *r++ = '\\';
adam@1467	3962 *r++ = s[1];
adam@1467	3963 ++s;
adamc@874	3964 } else
adamc@874	3965 *r++ = s[0];
adamc@874	3966 }
adamc@874	3967 if (*s == 0) break;
adam@1467	3968 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	3969 s += 3;
adamc@874	3970 else
adamc@874	3971 *r++ = s[0];
adamc@874	3972 }
adamc@874	3973
adam@1467	3974 *r = 0;
adam@1467	3975 return ret;
adamc@874	3976 }
adamc@874	3977
adamc@922	3978 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3979 va_list ap;
adamc@922	3980 size_t len = 1;
adamc@922	3981 char s, r, *s2;
phurst@1981	3982
adamc@922	3983 va_start(ap, ctx);
adamc@922	3984 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3985 len += strlen(s);
adamc@922	3986 va_end(ap);
adamc@922	3987
adamc@922	3988 r = uw_malloc(ctx, len);
adamc@922	3989 va_start(ap, ctx);
adamc@922	3990 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3991 while (*s)
adamc@922	3992 s2++ = s++;
adamc@922	3993 va_end(ap);
adamc@922	3994 *s2 = 0;
adamc@922	3995
adamc@922	3996 return r;
adamc@922	3997 }
adamc@1006	3998
adam@1365	3999 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	4000
adamc@1006	4001 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	4002 uw_Basis_time r = { time(NULL) };
adam@1365	4003 return r;
adamc@1006	4004 }
adamc@1061	4005
adam@1369	4006 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	4007 tm.seconds += n;
adam@1365	4008 return tm;
adamc@1138	4009 }
adamc@1138	4010
adam@1514	4011 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	4012 return difftime(tm2.seconds, tm1.seconds);
adam@1514	4013 }
adam@1514	4014
adam@1685	4015 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	4016 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	4017 }
adam@1685	4018
adam@1685	4019 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	4020 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	4021 }
adam@1685	4022
adam@1514	4023 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	4024 return tm.seconds;
adam@1514	4025 }
adam@1514	4026
phurst@1971	4027 uw_Basis_time uw_Basis_fromDatetime(uw_context ctx, uw_Basis_int year, uw_Basis_int month, uw_Basis_int day, uw_Basis_int hour, uw_Basis_int minute, uw_Basis_int second) {
phurst@1971	4028 struct tm tm = { .tm_year = year - 1900, .tm_mon = month, .tm_mday = day,
adam@2015	4029 .tm_hour = hour, .tm_min = minute, .tm_sec = second,
adam@2015	4030 .tm_isdst = -1 };
phurst@1984	4031 uw_Basis_time r = { timelocal(&tm) };
phurst@1971	4032 return r;
phurst@1971	4033 }
phurst@1971	4034
phurst@1971	4035 uw_Basis_int uw_Basis_datetimeYear(uw_context ctx, uw_Basis_time time) {
phurst@1971	4036 struct tm tm;
phurst@1982	4037 localtime_r(&time.seconds, &tm);
phurst@1971	4038 return tm.tm_year + 1900;
phurst@1971	4039 }
phurst@1971	4040
phurst@1971	4041 uw_Basis_int uw_Basis_datetimeMonth(uw_context ctx, uw_Basis_time time) {
phurst@1971	4042 struct tm tm;
phurst@1982	4043 localtime_r(&time.seconds, &tm);
phurst@1971	4044 return tm.tm_mon;
phurst@1971	4045 }
phurst@1971	4046
phurst@1971	4047 uw_Basis_int uw_Basis_datetimeDay(uw_context ctx, uw_Basis_time time) {
phurst@1971	4048 struct tm tm;
phurst@1982	4049 localtime_r(&time.seconds, &tm);
phurst@1971	4050 return tm.tm_mday;
phurst@1971	4051 }
phurst@1971	4052
phurst@1971	4053 uw_Basis_int uw_Basis_datetimeHour(uw_context ctx, uw_Basis_time time) {
phurst@1971	4054 struct tm tm;
phurst@1982	4055 localtime_r(&time.seconds, &tm);
phurst@1971	4056 return tm.tm_hour;
phurst@1971	4057 }
phurst@1971	4058
phurst@1971	4059 uw_Basis_int uw_Basis_datetimeMinute(uw_context ctx, uw_Basis_time time) {
phurst@1971	4060 struct tm tm;
phurst@1982	4061 localtime_r(&time.seconds, &tm);
phurst@1971	4062 return tm.tm_min;
phurst@1971	4063 }
phurst@1971	4064
phurst@1971	4065 uw_Basis_int uw_Basis_datetimeSecond(uw_context ctx, uw_Basis_time time) {
phurst@1971	4066 struct tm tm;
phurst@1982	4067 localtime_r(&time.seconds, &tm);
phurst@1971	4068 return tm.tm_sec;
phurst@1971	4069 }
phurst@1971	4070
phurst@1973	4071 uw_Basis_int uw_Basis_datetimeDayOfWeek(uw_context ctx, uw_Basis_time time) {
phurst@1973	4072 struct tm tm;
phurst@1982	4073 localtime_r(&time.seconds, &tm);
phurst@1973	4074 return tm.tm_wday;
phurst@1973	4075 }
phurst@1971	4076
phurst@1971	4077
adamc@1061	4078 void uw_get_global(uw_context ctx, char name) {
adamc@1061	4079 int i;
adamc@1061	4080
adamc@1061	4081 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4082 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	4083 return ctx->globals[i].data;
adamc@1061	4084
adamc@1061	4085 return NULL;
adamc@1061	4086 }
adamc@1061	4087
adamc@1113	4088 size_t uw_globals_max = SIZE_MAX;
adamc@1113	4089
adamc@1061	4090 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	4091 int i;
adamc@1061	4092
adamc@1061	4093 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4094 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	4095 if (ctx->globals[i].free)
adamc@1061	4096 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	4097 ctx->globals[i].data = data;
adamc@1061	4098 ctx->globals[i].free = free;
adamc@1061	4099 return;
adamc@1061	4100 }
adamc@1089	4101
adamc@1113	4102 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	4103 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	4104
adamc@1061	4105 ++ctx->n_globals;
adamc@1061	4106 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	4107 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	4108 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	4109 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	4110 }
adamc@1061	4111
adamc@1061	4112 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	4113 return !!isalnum((int)c);
adamc@1061	4114 }
adamc@1061	4115
adamc@1061	4116 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	4117 return !!isalpha((int)c);
adamc@1061	4118 }
adamc@1061	4119
adamc@1061	4120 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	4121 return !!isblank((int)c);
adamc@1061	4122 }
adamc@1061	4123
adamc@1061	4124 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	4125 return !!iscntrl((int)c);
adamc@1061	4126 }
adamc@1061	4127
adamc@1061	4128 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4129 return !!isdigit((int)c);
adamc@1061	4130 }
adamc@1061	4131
adamc@1061	4132 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	4133 return !!isgraph((int)c);
adamc@1061	4134 }
adamc@1061	4135
adamc@1061	4136 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4137 return !!islower((int)c);
adamc@1061	4138 }
adamc@1061	4139
adamc@1061	4140 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	4141 return !!isprint((int)c);
adamc@1061	4142 }
adamc@1061	4143
adamc@1061	4144 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	4145 return !!ispunct((int)c);
adamc@1061	4146 }
adamc@1061	4147
adamc@1061	4148 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	4149 return !!isspace((int)c);
adamc@1061	4150 }
adamc@1063	4151
adamc@1061	4152 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4153 return !!isupper((int)c);
adamc@1061	4154 }
adamc@1061	4155
adamc@1061	4156 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4157 return !!isxdigit((int)c);
adamc@1061	4158 }
adamc@1061	4159
adamc@1061	4160 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4161 return tolower((int)c);
adamc@1061	4162 }
adamc@1061	4163
adamc@1061	4164 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4165 return toupper((int)c);
adamc@1061	4166 }
adamc@1066	4167
adamc@1128	4168 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	4169 return (unsigned char)c;
adamc@1128	4170 }
adamc@1128	4171
adamc@1128	4172 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	4173 return n;
adamc@1128	4174 }
adamc@1128	4175
adamc@1066	4176 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	4177 return ctx->current_url;
adamc@1066	4178 }
adamc@1066	4179
adamc@1066	4180 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	4181 ctx->current_url = s;
adamc@1066	4182 }
adamc@1114	4183
adamc@1114	4184 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	4185 ctx->deadline = n;
adamc@1114	4186 }
adamc@1114	4187
adamc@1114	4188 void uw_check_deadline(uw_context ctx) {
adamc@1114	4189 if (uw_time > ctx->deadline)
adamc@1114	4190 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	4191 }
adamc@1115	4192
adamc@1115	4193 size_t uw_database_max = SIZE_MAX;
adamc@1120	4194
adam@1389	4195 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@1389	4196 fprintf(stderr, "%s\n", s);
adam@1389	4197 return 0;
adam@1389	4198 }
adam@1389	4199
adamc@1120	4200 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
grrwlf@1997	4201 if (ctx->loggers->log_debug)
grrwlf@1997	4202 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@1334	4203 else
adam@1334	4204 fprintf(stderr, "%s\n", s);
adamc@1120	4205 return uw_unit_v;
adamc@1120	4206 }
adamc@1250	4207
adam@1933	4208 static pthread_mutex_t rand_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@1933	4209
adamc@1250	4210 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@1486	4211 uw_Basis_int ret;
adam@1933	4212 pthread_mutex_lock(&rand_mutex);
adam@1486	4213 int r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@1933	4214 pthread_mutex_unlock(&rand_mutex);
phurst@1981	4215
adam@1486	4216 if (r)
adam@1486	4217 return abs(ret);
adam@1486	4218 else
adam@1486	4219 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	4220 }
adam@1347	4221
adam@1347	4222 void uw_noPostBody(uw_context ctx) {
adam@1347	4223 ctx->hasPostBody = 0;
adam@1347	4224 }
adam@1347	4225
adam@1347	4226 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	4227 ctx->hasPostBody = 1;
adam@1347	4228 ctx->postBody = pb;
adam@1347	4229 }
adam@1347	4230
adam@1347	4231 int uw_hasPostBody(uw_context ctx) {
adam@1347	4232 return ctx->hasPostBody;
adam@1347	4233 }
adam@1347	4234
adam@1386	4235 void uw_isPost(uw_context ctx) {
adam@1386	4236 ctx->isPost = 1;
adam@1386	4237 }
adam@1386	4238
adam@1386	4239 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4240 return ctx->isPost;
adam@1386	4241 }
adam@1386	4242
adam@1485	4243 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4244 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4245 }
adam@1485	4246
adam@1370	4247 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4248 ctx->queryString = s;
adam@1370	4249 }
adam@1370	4250
adam@1370	4251 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4252 return ctx->queryString;
adam@1370	4253 }
adam@1370	4254
adam@1347	4255 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4256 if (ctx->hasPostBody)
adam@1347	4257 return ctx->postBody;
adam@1347	4258 else
adam@1347	4259 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4260 }
adam@1349	4261
adam@1349	4262 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4263 int r = setjmp(ctx->jmp_buf);
adam@1349	4264
adam@1349	4265 if (r == 0) {
adam@1936	4266 uw_ensure_transaction(ctx);
adam@1418	4267
adam@1349	4268 callback(ctx);
adam@1349	4269 }
adam@1349	4270
adam@1349	4271 return r;
adam@1349	4272 }
adam@1360	4273
adam@1360	4274 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4275 char buf[14];
adam@1397	4276 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4277 }
adam@1365	4278
adam@1365	4279 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4280 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	4281 }
adam@1365	4282
adam@1365	4283 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@2034	4284 return !!(t1.seconds < t2.seconds \|\| (t1.seconds == t2.seconds && t1.microseconds < t2.microseconds));
adam@1365	4285 }
adam@1365	4286
adam@1365	4287 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4288 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4289 }
adam@1365	4290
adam@1372	4291 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4292 struct tm stm = {};
adam@1375	4293 char *end = strchr(s, 0);
adam@1449	4294 stm.tm_isdst = -1;
adam@1375	4295
adam@1632	4296 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4297 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4298
kkallio@1448	4299 r->seconds = timegm(&stm);
adam@1373	4300 r->microseconds = 0;
adam@1373	4301
adam@1373	4302 return r;
adam@1374	4303 }
adam@1374	4304 else
adam@1373	4305 return NULL;
adam@1372	4306 }
adam@1407	4307
adam@1407	4308 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4309 int r = setjmp(ctx->jmp_buf);
adam@1407	4310
adam@1407	4311 if (ctx->app->on_error) {
adam@1407	4312 if (r == 0) {
adam@1936	4313 uw_ensure_transaction(ctx);
adam@1407	4314
adam@1409	4315 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4316 if (on_success[0])
adam@1409	4317 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4318 else
adam@1409	4319 uw_write_header(ctx, "Status: ");
adam@1409	4320 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919	4321 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1956	4322 uw_write(ctx, ctx->app->is_html5 ? uw_begin_html5 : uw_begin_xhtml);
adam@1407	4323 ctx->app->on_error(ctx, msg);
adam@1407	4324 uw_write(ctx, "</html>");
adam@1407	4325 }
adam@1407	4326
adam@1407	4327 return r;
adam@1407	4328 } else
adam@1407	4329 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4330 }
adam@1451	4331
adam@1451	4332 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4333 ctx->allowed_to_return_indirectly = 1;
adam@1451	4334 }
adam@1483	4335
adam@1556	4336 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4337 int len;
adam@1703	4338 char *r;
adam@1703	4339
adam@1703	4340 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4341 r = ctx->heap.front;
adam@1703	4342 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4343 ctx->heap.front += len+1;
adam@1703	4344 return r;
adam@1556	4345 }
adam@1571	4346
adam@1571	4347 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4348 return n;
adam@1571	4349 }
adam@1571	4350
adam@1571	4351 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4352 return ceil(n);
adam@1571	4353 }
adam@1571	4354
adam@1571	4355 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4356 return trunc(n);
adam@1571	4357 }
adam@1571	4358
adam@1571	4359 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4360 return round(n);
adam@1571	4361 }
adam@1755	4362
adam@1755	4363 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755	4364 char *p;
adam@1755	4365
adam@1755	4366 for (p = s; *p; ++p) {
adam@1755	4367 char c = *p;
adam@1801	4368 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755	4369 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4370 }
adam@1755	4371
adam@1755	4372 return s;
adam@1755	4373 }
adam@1755	4374
adam@1755	4375 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4376 char *p;
adam@1755	4377
adam@1755	4378 for (p = s; *p; ++p) {
adam@1755	4379 char c = *p;
adam@1801	4380 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4381 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4382 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4383 }
adam@1755	4384
adam@1755	4385 return s;
adam@1755	4386 }
adam@1755	4387
adam@1755	4388 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4389 char *p;
adam@1755	4390
adam@1755	4391 if (!*s)
adam@1755	4392 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4393
adam@1801	4394 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4395 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4396
adam@1755	4397 for (p = s; *p; ++p) {
adam@1755	4398 char c = *p;
adam@1801	4399 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4400 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4401 }
adam@1755	4402
adam@1755	4403 return s;
adam@1755	4404 }
adam@1787	4405
adam@1787	4406 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4407 return f.name;
adam@1787	4408 }
adam@1787	4409
adam@1787	4410 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4411 return f.value;
adam@1787	4412 }
adam@1787	4413
adam@1787	4414 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4415 return f.remaining;
adam@1787	4416 }
adam@1787	4417
adam@1787	4418 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4419 char *unurl;
adam@1787	4420 uw_Basis_postField *f;
adam@1787	4421
adam@1788	4422 if (!ctx->hasPostBody)
adam@1788	4423 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4424
adam@1788	4425 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4426 return NULL;
adam@1787	4427
adam@1787	4428 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4429 unurl = s;
adam@1787	4430 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4431 s = strchr(s, 0);
adam@1788	4432 if (!s)
adam@1788	4433 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4434 ++s;
adam@1788	4435 unurl = s;
adam@1788	4436 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4437 s = strchr(s, 0);
adam@1788	4438 if (!s)
adam@1788	4439 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4440 f->remaining = s+1;
adam@1787	4441
adam@1787	4442 return f;
adam@1787	4443 }
adam@2008	4444
adam@2008	4445 uw_Basis_string uw_Basis_blessData(uw_context ctx, uw_Basis_string s) {
adam@2008	4446 char *p = s;
adam@2008	4447
adam@2008	4448 for (; *p; ++p)
adam@2008	4449 if (!isalnum(p) && p != '-' && *p != '_')
adam@2008	4450 uw_error(ctx, FATAL, "Illegal HTML5 data-* attribute: %s", s);
adam@2008	4451
adam@2008	4452 return s;
adam@2008	4453 }

Mercurial > urweb

annotate src/c/urweb.c @ 2070:382911d72e63