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

annotate src/c/urweb.c @ 2166:8a01e8f21de9

Make OpenSSL usage thread-safe (closes #206) Enable OpenSSL?s multithreading support by defining locking and thread-ID callbacks. Remove a lock obviated by this change.

author	Benjamin Barenblat <bbaren@mit.edu>
date	Thu, 06 Aug 2015 10:15:53 -0400
parents	4895c41b2ec6
children	d2a98983f502 c05851bf7861

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
adam@2104	170 static uw_Basis_int my_rand() {
adam@2105	171 int ret, r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@2104	172 if (r)
adam@2105	173 return abs(ret);
adam@2104	174 else
adam@2104	175 return -1;
adam@2104	176 }
adam@2104	177
adamc@682	178 static client *new_client() {
adamc@667	179 client *c;
adamc@667	180
adamc@667	181 pthread_mutex_lock(&clients_mutex);
adamc@667	182
adamc@667	183 if (clients_free) {
adamc@667	184 c = clients_free;
adamc@682	185 clients_free = clients_free->next;
adamc@667	186 }
adam@1672	187 else if (n_clients >= uw_clients_max) {
adam@1672	188 pthread_mutex_unlock(&clients_mutex);
adamc@1113	189 return NULL;
adam@1672	190 } else {
adamc@667	191 ++n_clients;
adamc@667	192 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	193 c = malloc(sizeof(client));
adamc@667	194 c->id = n_clients-1;
adamc@682	195 pthread_mutex_init(&c->lock, NULL);
adamc@689	196 pthread_mutex_init(&c->pull_lock, NULL);
adam@1369	197 uw_buffer_init(uw_messages_max, &c->msgs, 0);
adamc@667	198 clients[n_clients-1] = c;
adamc@667	199 }
adamc@667	200
adamc@682	201 pthread_mutex_lock(&c->lock);
adamc@667	202 c->mode = USED;
adam@2104	203 c->pass = my_rand();
adamc@682	204 c->sock = -1;
adamc@682	205 c->last_contact = time(NULL);
adam@1369	206 uw_buffer_reset(&c->msgs);
adamc@682	207 c->n_channels = 0;
adamc@685	208 c->refcount = 0;
adamc@1121	209 c->data = uw_init_client_data();
adamc@682	210 pthread_mutex_unlock(&c->lock);
adamc@682	211
adamc@682	212 c->next = clients_used;
adamc@682	213 clients_used = c;
adamc@667	214
adamc@667	215 pthread_mutex_unlock(&clients_mutex);
adamc@667	216
adamc@667	217 return c;
adamc@667	218 }
adamc@667	219
adamc@685	220 static void use_client(client *c) {
adamc@685	221 pthread_mutex_lock(&c->lock);
adamc@685	222 ++c->refcount;
adamc@685	223 pthread_mutex_unlock(&c->lock);
adamc@689	224 pthread_mutex_lock(&c->pull_lock);
adamc@685	225 }
adamc@685	226
adamc@685	227 static void release_client(client *c) {
adamc@689	228 pthread_mutex_unlock(&c->pull_lock);
adamc@685	229 pthread_mutex_lock(&c->lock);
adamc@685	230 --c->refcount;
adamc@685	231 pthread_mutex_unlock(&c->lock);
adamc@685	232 }
adamc@685	233
adamc@856	234 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adam@1707	235 static pthread_t pruning_thread;
adam@1707	236 static int pruning_thread_initialized = 0;
adamc@667	237
adamc@682	238 static client *find_client(unsigned id) {
adamc@667	239 client *c;
adam@1708	240 int i_am_pruner = pruning_thread_initialized && pthread_equal(pruning_thread, pthread_self());
adam@1708	241
adam@1708	242 if (!i_am_pruner) pthread_mutex_lock(&clients_mutex);
adamc@667	243
adamc@667	244 if (id >= n_clients) {
adam@1708	245 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	246 return NULL;
adamc@667	247 }
adamc@667	248
adamc@667	249 c = clients[id];
adamc@667	250
adam@1708	251 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	252 return c;
adamc@668	253 }
adamc@668	254
adamc@856	255 static char *on_success = "HTTP/1.1 200 OK\r\n";
adam@1409	256 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	257
adamc@856	258 void uw_set_on_success(char *s) {
adamc@856	259 on_success = s;
adamc@856	260 }
adamc@856	261
adam@1552	262 static void chastise(int (send)(int sockfd, const void buf, ssize_t len), int sock) {
adam@1552	263 send(sock, on_success, strlen(on_success));
adam@1552	264 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1552	265 send(sock, "R", 1);
adam@1552	266 close(sock);
adam@1552	267 }
adam@1552	268
adamc@863	269 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	270 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	271 int (*close)(int fd),
adamc@864	272 void *logger_data, uw_logger log_error) {
adamc@682	273 client *c = find_client(id);
adamc@668	274
adamc@668	275 if (c == NULL) {
adam@1552	276 chastise(send, sock);
adamc@864	277 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	278 return;
adamc@667	279 }
adamc@667	280
adamc@682	281 pthread_mutex_lock(&c->lock);
adamc@671	282
adamc@682	283 if (c->mode != USED) {
adamc@682	284 pthread_mutex_unlock(&c->lock);
adam@1552	285 chastise(send, sock);
adamc@864	286 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	287 return;
adamc@667	288 }
adamc@667	289
adamc@682	290 if (pass != c->pass) {
adamc@682	291 pthread_mutex_unlock(&c->lock);
adam@1552	292 chastise(send, sock);
adamc@864	293 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	294 return;
adamc@667	295 }
adamc@667	296
adamc@682	297 if (c->sock != -1) {
adamc@863	298 c->close(c->sock);
adamc@682	299 c->sock = -1;
adamc@682	300 }
adamc@667	301
adamc@682	302 c->last_contact = time(NULL);
adamc@682	303
adam@1369	304 if (uw_buffer_used(&c->msgs) > 0) {
adamc@863	305 send(sock, on_success, strlen(on_success));
adamc@863	306 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1369	307 send(sock, c->msgs.start, uw_buffer_used(&c->msgs));
adam@1369	308 uw_buffer_reset(&c->msgs);
adamc@667	309 close(sock);
adamc@667	310 }
adamc@863	311 else {
adamc@682	312 c->sock = sock;
adamc@863	313 c->send = send;
adamc@863	314 c->close = close;
adamc@863	315 }
adamc@667	316
adamc@682	317 pthread_mutex_unlock(&c->lock);
adamc@667	318 }
adamc@667	319
adamc@682	320 static void free_client(client *c) {
adamc@682	321 c->mode = UNUSED;
adamc@682	322 c->pass = -1;
adamc@667	323
adamc@682	324 c->next = clients_free;
adamc@682	325 clients_free = c;
adamc@667	326 }
adamc@667	327
adamc@682	328 static uw_Basis_channel new_channel(client *c) {
adamc@682	329 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	330 return ch;
adamc@668	331 }
adamc@668	332
adam@1447	333 static void client_send(client c, uw_buffer msg, const char *script, int script_len) {
adamc@685	334 pthread_mutex_lock(&c->lock);
adamc@671	335
adamc@682	336 if (c->sock != -1) {
adamc@863	337 c->send(c->sock, on_success, strlen(on_success));
adamc@863	338 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1447	339 if (script_len > 0) {
adam@1447	340 c->send(c->sock, "E\n", 2);
adam@1447	341 c->send(c->sock, script, script_len);
adam@1447	342 c->send(c->sock, "\n", 1);
adam@1447	343 }
adam@1369	344 c->send(c->sock, msg->start, uw_buffer_used(msg));
adamc@863	345 c->close(c->sock);
adamc@682	346 c->sock = -1;
adam@1665	347 } else if (uw_buffer_append(&c->msgs, msg->start, uw_buffer_used(msg)))
adamc@1113	348 fprintf(stderr, "Client message buffer size exceeded");
adamc@671	349
adamc@685	350 pthread_mutex_unlock(&c->lock);
adamc@668	351 }
adamc@668	352
adamc@668	353
adamc@668	354 // Global entry points
adamc@668	355
adamc@1164	356 extern void uw_global_custom();
adamc@1104	357 extern void uw_init_crypto();
adamc@1104	358
adamc@668	359 void uw_global_init() {
adamc@668	360 clients = malloc(0);
adamc@1104	361
adamc@1164	362 uw_global_custom();
adamc@1104	363 uw_init_crypto();
adamc@1094	364 }
adamc@1094	365
adamc@1094	366 void uw_app_init(uw_app *app) {
adamc@1094	367 app->client_init();
adamc@668	368 }
adamc@668	369
adam@1332	370 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114	371
adamc@668	372
adamc@667	373 // Single-request state
adamc@667	374
adamc@323	375 typedef struct regions {
adamc@323	376 struct regions *next;
adamc@323	377 } regions;
adamc@323	378
adamc@425	379 typedef struct {
adamc@425	380 void (func)(void);
adamc@425	381 void *arg;
adamc@425	382 } cleanup;
adamc@425	383
adamc@671	384 typedef struct {
adamc@682	385 unsigned client;
adam@1369	386 uw_buffer msgs;
adamc@682	387 } delta;
adamc@671	388
adamc@737	389 typedef enum {
adamc@759	390 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	391 } input_kind;
adamc@737	392
adamc@756	393 typedef struct input {
adamc@737	394 input_kind kind;
adamc@737	395 union {
adamc@737	396 char *normal;
adamc@739	397 uw_Basis_file file;
adamc@756	398 struct {
adamc@759	399 struct input fields, parent;
adamc@756	400 } subform;
adamc@759	401 struct {
adamc@759	402 struct input entries, parent;
adamc@759	403 } subforms;
adamc@759	404 struct {
adamc@759	405 struct input fields, next, *parent;
adamc@759	406 } entry;
adamc@737	407 } data;
adamc@737	408 } input;
adamc@737	409
adamc@771	410 typedef struct {
adamc@771	411 void *data;
adam@1327	412 uw_callback commit, rollback;
adam@1327	413 uw_callback_with_retry free;
adamc@771	414 } transactional;
adamc@771	415
adamc@1061	416 typedef struct {
adamc@1061	417 char *name;
adamc@1061	418 void *data;
adamc@1061	419 void (free)(void);
adamc@1061	420 } global;
adamc@1061	421
adamc@311	422 struct uw_context {
adamc@1094	423 uw_app *app;
adam@1446	424 int id;
adamc@1094	425
adamc@854	426 char (get_header)(void , const char );
adamc@854	427 void *get_header_data;
adamc@457	428
adam@1799	429 char (get_env)(void , const char );
adam@1799	430 void *get_env_data;
adam@1799	431
adam@1369	432 uw_buffer outHeaders, page, heap, script;
adam@1451	433 int allowed_to_return_indirectly, returning_indirectly;
adamc@759	434 input inputs, subinputs, *cur_container;
adamc@1094	435 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	436
adam@1446	437 unsigned long long source_count;
adamc@562	438
adamc@272	439 void *db;
adam@1931	440 int transaction_started;
adamc@272	441
adamc@167	442 jmp_buf jmp_buf;
adamc@167	443
adamc@323	444 regions *regions;
adamc@323	445
adamc@425	446 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	447
adamc@1094	448 const char *script_header;
adamc@643	449
adam@2056	450 int needs_push, needs_sig, could_write_db, at_most_one_query;
adamc@693	451
adamc@682	452 size_t n_deltas, used_deltas;
adamc@682	453 delta *deltas;
adamc@671	454
adamc@682	455 client *client;
adamc@682	456
adamc@771	457 transactional *transactionals;
adamc@771	458 size_t n_transactionals, used_transactionals;
adamc@771	459
adamc@1061	460 global *globals;
adamc@1061	461 size_t n_globals;
adamc@1061	462
adamc@1066	463 char *current_url;
adamc@1066	464
adamc@1114	465 int deadline;
adamc@1114	466
adamc@1121	467 void *client_data;
adamc@1121	468
grrwlf@1997	469 uw_loggers *loggers;
adam@1334	470
adam@1386	471 int isPost, hasPostBody;
adam@1347	472 uw_Basis_postBody postBody;
adam@1370	473 uw_Basis_string queryString;
adam@1347	474
adam@1556	475 unsigned nextId;
adam@1556	476
adam@1782	477 int amInitializing;
adam@1782	478
adamc@167	479 char error_message[ERROR_BUF_LEN];
adam@1877	480
adam@1877	481 int usedSig, needsResig;
adam@1949	482
adam@1949	483 char *output_buffer;
adam@1949	484 size_t output_buffer_size;
adam@2073	485
adam@2073	486 int remoteSock;
adamc@117	487 };
adamc@117	488
adamc@1113	489 size_t uw_headers_max = SIZE_MAX;
adamc@1113	490 size_t uw_page_max = SIZE_MAX;
adamc@1113	491 size_t uw_heap_max = SIZE_MAX;
adamc@1113	492 size_t uw_script_max = SIZE_MAX;
adamc@1113	493
grrwlf@1997	494 uw_context uw_init(int id, uw_loggers *lg) {
adamc@311	495 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	496
adamc@1094	497 ctx->app = NULL;
adam@1446	498 ctx->id = id;
adamc@1094	499
adamc@854	500 ctx->get_header = NULL;
adamc@854	501 ctx->get_header_data = NULL;
adamc@457	502
adam@1799	503 ctx->get_env = NULL;
adam@1799	504 ctx->get_env_data = NULL;
adam@1799	505
adam@1413	506 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413	507 ctx->outHeaders.start[0] = 0;
adam@1413	508 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413	509 ctx->page.start[0] = 0;
adam@1451	510 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	511 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369	512 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667	513 ctx->script.start[0] = 0;
adamc@136	514
adamc@1094	515 ctx->inputs = malloc(0);
adamc@759	516 ctx->cur_container = NULL;
adamc@756	517 ctx->subinputs = malloc(0);
adamc@1094	518 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	519
adamc@272	520 ctx->db = NULL;
adam@1931	521 ctx->transaction_started = 0;
adamc@272	522
adamc@323	523 ctx->regions = NULL;
adamc@323	524
adamc@425	525 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	526
adamc@643	527 ctx->script_header = "";
adamc@693	528 ctx->needs_push = 0;
adamc@736	529 ctx->needs_sig = 0;
adam@1936	530 ctx->could_write_db = 1;
adam@2056	531 ctx->at_most_one_query = 0;
adamc@1104	532
adamc@565	533 ctx->source_count = 0;
adamc@562	534
adamc@682	535 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	536 ctx->deltas = malloc(0);
adamc@671	537
adamc@700	538 ctx->client = NULL;
adamc@700	539
adamc@700	540 ctx->error_message[0] = 0;
adamc@700	541
adamc@771	542 ctx->transactionals = malloc(0);
adamc@771	543 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	544
adamc@1061	545 ctx->globals = malloc(0);
adamc@1061	546 ctx->n_globals = 0;
adamc@1061	547
adamc@1066	548 ctx->current_url = "";
adamc@1066	549
adamc@1114	550 ctx->deadline = INT_MAX;
adamc@1114	551
adamc@1121	552 ctx->client_data = uw_init_client_data();
adamc@1121	553
grrwlf@1997	554 ctx->loggers = lg;
adam@1334	555
adam@1386	556 ctx->isPost = ctx->hasPostBody = 0;
adam@1347	557
adam@1370	558 ctx->queryString = NULL;
adam@1370	559
adam@1556	560 ctx->nextId = 0;
adam@1556	561
adam@1782	562 ctx->amInitializing = 0;
adam@1782	563
adam@1877	564 ctx->usedSig = 0;
adam@1877	565 ctx->needsResig = 0;
adam@1877	566
adam@1949	567 ctx->output_buffer = malloc(1);
adam@1949	568 ctx->output_buffer_size = 1;
adam@1949	569
adam@2073	570 ctx->remoteSock = -1;
adam@2073	571
adamc@117	572 return ctx;
adamc@106	573 }
adamc@106	574
adamc@1113	575 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	576
adamc@1121	577 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	578 return ctx->app;
adamc@1121	579 }
adamc@1121	580
adamc@1113	581 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	582 ctx->app = app;
adamc@1094	583
adamc@1105	584 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	585 if (app->inputs_len > uw_inputs_max)
adamc@1113	586 return 1;
adamc@1113	587
adamc@1094	588 ctx->sz_inputs = app->inputs_len;
adamc@1094	589 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	590 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	591 }
adamc@1134	592
adamc@1134	593 return 0;
adamc@1094	594 }
adamc@1094	595
adamc@1121	596 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	597 uw_copy_client_data(ctx->client_data, data);
adamc@1121	598 }
adamc@1121	599
adamc@311	600 void uw_set_db(uw_context ctx, void *db) {
adamc@272	601 ctx->db = db;
adamc@272	602 }
adamc@272	603
adamc@311	604 void *uw_get_db(uw_context ctx) {
adamc@272	605 return ctx->db;
adamc@272	606 }
adamc@272	607
grrwlf@1997	608
grrwlf@1997	609 uw_loggers* uw_get_loggers(struct uw_context *ctx) {
grrwlf@1997	610 return ctx->loggers;
grrwlf@1997	611 }
grrwlf@1997	612
adamc@311	613 void uw_free(uw_context ctx) {
adamc@671	614 size_t i;
adamc@671	615
adam@1369	616 uw_buffer_free(&ctx->outHeaders);
adam@1369	617 uw_buffer_free(&ctx->script);
adam@1369	618 uw_buffer_free(&ctx->page);
adam@1369	619 uw_buffer_free(&ctx->heap);
adamc@144	620 free(ctx->inputs);
adamc@756	621 free(ctx->subinputs);
adamc@425	622 free(ctx->cleanup);
adamc@771	623 free(ctx->transactionals);
adamc@1121	624 uw_free_client_data(ctx->client_data);
adamc@671	625
adamc@682	626 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	627 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	628 free(ctx->deltas);
adamc@671	629
adamc@1061	630 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	631 if (ctx->globals[i].free)
adamc@1089	632 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	633 free(ctx->globals);
adamc@1061	634
adam@1949	635 free(ctx->output_buffer);
adam@1949	636
adamc@136	637 free(ctx);
adamc@136	638 }
adamc@136	639
adamc@562	640 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	641 uw_buffer_reset(&ctx->outHeaders);
adam@1369	642 uw_buffer_reset(&ctx->script);
adamc@667	643 ctx->script.start[0] = 0;
adam@1369	644 uw_buffer_reset(&ctx->page);
adam@1451	645 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	646 uw_buffer_reset(&ctx->heap);
adamc@323	647 ctx->regions = NULL;
adamc@425	648 ctx->cleanup_front = ctx->cleanup;
adamc@682	649 ctx->used_deltas = 0;
adamc@682	650 ctx->client = NULL;
adamc@759	651 ctx->cur_container = NULL;
adamc@771	652 ctx->used_transactionals = 0;
adamc@1117	653 ctx->script_header = "";
adam@1370	654 ctx->queryString = NULL;
adam@1556	655 ctx->nextId = 0;
adam@1782	656 ctx->amInitializing = 0;
adam@1877	657 ctx->usedSig = 0;
adam@1877	658 ctx->needsResig = 0;
adam@2073	659 ctx->remoteSock = -1;
adamc@167	660 }
adamc@167	661
adamc@562	662 void uw_reset_keep_request(uw_context ctx) {
adamc@562	663 uw_reset_keep_error_message(ctx);
adamc@562	664 ctx->error_message[0] = 0;
adamc@167	665 }
adamc@167	666
adamc@311	667 void uw_reset(uw_context ctx) {
adamc@311	668 uw_reset_keep_request(ctx);
adamc@1105	669 if (ctx->app)
adamc@1105	670 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	671 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461	672 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adam@1943	673 ctx->transaction_started = 0;
adamc@144	674 }
adamc@144	675
adamc@311	676 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	677 int r = setjmp(ctx->jmp_buf);
adamc@272	678
adamc@1105	679 if (r == 0 && ctx->app)
adamc@1094	680 ctx->app->db_init(ctx);
adamc@272	681
adamc@272	682 return r;
adamc@272	683 }
adamc@272	684
adamc@1118	685 void uw_close(uw_context ctx) {
adamc@1118	686 ctx->app->db_close(ctx);
adamc@1118	687 }
adamc@1118	688
adam@1446	689 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	690 return ctx->get_header(ctx->get_header_data, h);
adam@1446	691 }
adam@1446	692
adamc@854	693 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	694 ctx->get_header = get_header;
adamc@854	695 ctx->get_header_data = get_header_data;
adamc@742	696 }
adamc@742	697
adam@1799	698 void uw_set_env(uw_context ctx, char (get_env)(void , const char ), void *get_env_data) {
adam@1799	699 ctx->get_env = get_env;
adam@1799	700 ctx->get_env_data = get_env_data;
adam@1799	701 }
adam@1799	702
adamc@801	703 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	704 va_list ap;
adamc@801	705 va_start(ap, fmt);
adamc@801	706
adamc@801	707 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	708 }
adamc@801	709
adamc@1131	710 int uw_has_error(uw_context ctx) {
adamc@1131	711 return ctx->error_message[0] != 0;
adamc@1131	712 }
adamc@1131	713
adamc@311	714 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	715 cleanup *cl;
adamc@425	716
adamc@167	717 va_list ap;
adamc@167	718 va_start(ap, fmt);
adamc@167	719
adamc@167	720 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	721
adamc@425	722 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	723 cl->func(cl->arg);
adamc@425	724
adamc@425	725 ctx->cleanup_front = ctx->cleanup;
adamc@425	726
adamc@190	727 longjmp(ctx->jmp_buf, fk);
adamc@167	728 }
adamc@167	729
adamc@1113	730 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	731
adamc@425	732 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	733 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	734 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	735 if (len == 0)
adamc@425	736 newLen = 1;
adamc@425	737 else
adamc@428	738 newLen = len * 2;
adamc@1113	739
adamc@1134	740 if (newLen > uw_cleanup_max) {
adamc@1113	741 if (len+1 <= uw_cleanup_max)
adamc@1113	742 newLen = uw_cleanup_max;
adamc@1113	743 else
adamc@1113	744 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	745 }
adamc@1113	746
adamc@470	747 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	748 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	749 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	750 }
adamc@425	751
adamc@425	752 ctx->cleanup_front->func = func;
adamc@425	753 ctx->cleanup_front->arg = arg;
adamc@425	754 ++ctx->cleanup_front;
adamc@425	755 }
adamc@425	756
adam@1444	757 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	758
adamc@682	759 void uw_login(uw_context ctx) {
adam@1942	760 char id_s, pass_s;
adam@1942	761
adam@1942	762 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adam@1942	763 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adam@1942	764 unsigned id = atoi(id_s);
adam@1942	765 int pass = atoi(pass_s);
adam@1942	766 client *c = find_client(id);
adam@1942	767
adam@1942	768 if (c == NULL)
adam@1942	769 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	770 else {
adamc@685	771 use_client(c);
adamc@682	772 ctx->client = c;
adam@1942	773
adam@1942	774 if (c->mode != USED)
adam@1942	775 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adam@1942	776 if (c->pass != pass)
adam@1942	777 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@864	778 }
adam@1942	779 } else if (ctx->needs_push) {
adam@1942	780 client *c = new_client();
adam@1942	781
adam@1942	782 if (c == NULL)
adam@1942	783 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adam@1942	784
adam@1942	785 use_client(c);
adam@1942	786 uw_copy_client_data(c->data, ctx->client_data);
adam@1942	787 ctx->client = c;
adamc@682	788 }
adamc@682	789 }
adamc@682	790
adamc@671	791 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	792 int r = setjmp(ctx->jmp_buf);
adamc@671	793
adam@1931	794 if (r == 0)
adam@1931	795 ctx->app->handle(ctx, path);
adam@1931	796
adam@1931	797 return r;
adam@1931	798 }
adam@1931	799
adam@1931	800 void uw_ensure_transaction(uw_context ctx) {
adam@2056	801 if (!ctx->transaction_started && !ctx->at_most_one_query) {
adam@1936	802 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adamc@671	803 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1931	804 ctx->transaction_started = 1;
adamc@671	805 }
adamc@671	806 }
adamc@671	807
adamc@772	808 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	809 if (ctx->client == NULL)
adamc@682	810 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	811
adamc@682	812 return ctx->client->id;
adamc@682	813 }
adamc@682	814
adamc@425	815 void uw_pop_cleanup(uw_context ctx) {
adamc@425	816 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	817 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	818
adamc@425	819 --ctx->cleanup_front;
adamc@425	820 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	821 }
adamc@425	822
adamc@311	823 char *uw_error_message(uw_context ctx) {
adamc@167	824 return ctx->error_message;
adamc@167	825 }
adamc@167	826
adamc@1115	827 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	828 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	829 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	830 }
adamc@1115	831
adamc@759	832 static input *INP(uw_context ctx) {
adamc@759	833 if (ctx->cur_container == NULL)
adamc@759	834 return ctx->inputs;
adamc@759	835 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	836 return ctx->cur_container->data.subform.fields;
adamc@759	837 else if (ctx->cur_container->kind == ENTRY)
adamc@759	838 return ctx->cur_container->data.entry.fields;
adamc@759	839 else
adamc@760	840 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	841 }
adamc@759	842
adamc@760	843 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	844 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	845 *ptr += new_start - old_start;
adamc@760	846 }
adamc@760	847
adamc@760	848 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	849 switch (x->kind) {
adamc@759	850 case SUBFORM:
adamc@760	851 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	852 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	853 break;
adamc@759	854 case SUBFORMS:
adamc@760	855 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	856 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	857 break;
adamc@759	858 case ENTRY:
adamc@760	859 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	860 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	861 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	862 break;
adamc@1134	863 default:
adamc@1134	864 break;
phurst@1981	865 }
adamc@759	866 }
adamc@759	867
adamc@1113	868 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	869
adamc@759	870 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	871 size_t i;
adamc@759	872 input *r;
adamc@759	873
adamc@759	874 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	875 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	876 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	877
adamc@759	878 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	879
adamc@760	880 if (ctx->subinputs != new_subinputs) {
adamc@760	881 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	882 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	883 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	884 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	885
adamc@760	886 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	887
adamc@760	888 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	889 ctx->subinputs = new_subinputs;
adamc@760	890 }
adamc@759	891 }
adamc@759	892
adamc@759	893 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	894
adamc@759	895 for (i = 0; i < len; ++i)
adam@1474	896 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	897
adamc@759	898 return r;
adamc@759	899 }
adamc@756	900
adamc@801	901 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	902 //printf("Input name %s\n", name);
adamc@1038	903
adamc@756	904 if (!strcasecmp(name, ".b")) {
adamc@1094	905 int n = ctx->app->input_num(value);
adamc@756	906 input *inps;
adamc@756	907
adamc@801	908 if (n < 0) {
adam@1444	909 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	910 return -1;
adamc@801	911 }
adamc@801	912
adamc@1094	913 if (n >= ctx->app->inputs_len) {
adam@1444	914 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	915 return -1;
adamc@801	916 }
adamc@756	917
adamc@1094	918 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	919
adamc@759	920 INP(ctx)[n].kind = SUBFORM;
adamc@759	921 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	922 INP(ctx)[n].data.subform.fields = inps;
adamc@759	923 ctx->cur_container = &INP(ctx)[n];
adamc@756	924 } else if (!strcasecmp(name, ".e")) {
adamc@756	925 input *tmp;
adamc@756	926
adamc@801	927 if (ctx->cur_container == NULL) {
adamc@801	928 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	929 return -1;
adamc@801	930 }
adamc@756	931
adamc@759	932 tmp = ctx->cur_container;
adamc@759	933 switch (tmp->kind) {
adamc@759	934 case SUBFORM:
adamc@759	935 ctx->cur_container = tmp->data.subform.parent;
adamc@759	936 tmp->data.subform.parent = NULL;
adamc@759	937 break;
adamc@759	938 case SUBFORMS:
adamc@759	939 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	940 tmp->data.subforms.parent = NULL;
adamc@759	941 break;
adamc@759	942 case ENTRY:
adamc@759	943 ctx->cur_container = tmp->data.entry.parent;
adamc@759	944 break;
adamc@759	945 default:
adamc@801	946 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	947 return -1;
adamc@759	948 }
adamc@759	949 } else if (!strcasecmp(name, ".s")) {
adamc@1094	950 int n = ctx->app->input_num(value);
adamc@759	951
adamc@801	952 if (n < 0) {
adam@1444	953 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	954 return -1;
adamc@801	955 }
adamc@801	956
adamc@1094	957 if (n >= ctx->app->inputs_len) {
adam@1444	958 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	959 return -1;
adamc@801	960 }
adamc@759	961
adamc@759	962 INP(ctx)[n].kind = SUBFORMS;
adamc@759	963 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	964 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	965 ctx->cur_container = &INP(ctx)[n];
adamc@759	966 } else if (!strcasecmp(name, ".i")) {
adamc@759	967 input *inps;
adamc@759	968
adamc@801	969 if (!ctx->cur_container) {
adamc@801	970 uw_set_error(ctx, "New entry without container");
adamc@801	971 return -1;
adamc@801	972 }
adamc@801	973
adamc@801	974 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	975 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	976 return -1;
adamc@801	977 }
adamc@759	978
adamc@1094	979 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	980
adamc@759	981 inps->kind = ENTRY;
adamc@759	982 inps->data.entry.parent = ctx->cur_container;
adamc@759	983 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	984 ctx->cur_container->data.subforms.entries = inps;
adamc@759	985
adamc@759	986 inps->data.entry.fields = inps+1;
adamc@759	987 ctx->cur_container = inps;
adamc@756	988 } else {
adamc@1094	989 int n = ctx->app->input_num(name);
adamc@756	990
adam@1384	991 if (n < 0)
adam@1384	992 return 0;
adamc@801	993
adamc@1094	994 if (n >= ctx->app->inputs_len) {
adam@1444	995 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	996 return -1;
adamc@801	997 }
adamc@756	998
adamc@756	999 INP(ctx)[n].kind = NORMAL;
adamc@756	1000 INP(ctx)[n].data.normal = value;
adamc@756	1001 }
adamc@801	1002
adamc@801	1003 return 0;
adamc@144	1004 }
adamc@144	1005
adamc@311	1006 char *uw_get_input(uw_context ctx, int n) {
adamc@169	1007 if (n < 0)
adamc@311	1008 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1009 if (n >= ctx->app->inputs_len)
adamc@311	1010 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1011
adamc@756	1012 switch (INP(ctx)[n].kind) {
adamc@737	1013 case UNSET:
adamc@737	1014 return NULL;
adamc@739	1015 case FIL:
adamc@739	1016 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1017 case SUBFORM:
adamc@756	1018 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1019 case SUBFORMS:
adamc@759	1020 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1021 case ENTRY:
adamc@759	1022 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1023 case NORMAL:
adamc@756	1024 return INP(ctx)[n].data.normal;
adamc@737	1025 default:
adamc@737	1026 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1027 }
adamc@138	1028 }
adamc@138	1029
adamc@311	1030 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	1031 if (n < 0)
adamc@311	1032 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1033 if (n >= ctx->app->inputs_len)
adamc@311	1034 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1035
adamc@756	1036 switch (INP(ctx)[n].kind) {
adamc@737	1037 case UNSET:
adamc@737	1038 return "";
adamc@739	1039 case FIL:
adamc@739	1040 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1041 case SUBFORM:
adamc@756	1042 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1043 case SUBFORMS:
adamc@759	1044 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1045 case ENTRY:
adamc@759	1046 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1047 case NORMAL:
adamc@756	1048 return INP(ctx)[n].data.normal;
adamc@737	1049 default:
adamc@737	1050 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1051 }
adamc@737	1052 }
adamc@737	1053
adamc@801	1054 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1055 int n = ctx->app->input_num(name);
adamc@737	1056
adamc@801	1057 if (n < 0) {
adam@2054	1058 uw_set_error(ctx, "Bad file input name");
adamc@801	1059 return -1;
adamc@801	1060 }
adamc@801	1061
adamc@1094	1062 if (n >= ctx->app->inputs_len) {
adam@2054	1063 uw_set_error(ctx, "For file input name, index %d is out of range", n);
adamc@801	1064 return -1;
adamc@801	1065 }
adamc@737	1066
adamc@739	1067 ctx->inputs[n].kind = FIL;
adamc@739	1068 ctx->inputs[n].data.file = f;
adamc@801	1069
adamc@801	1070 return 0;
adamc@737	1071 }
adamc@737	1072
adamc@739	1073 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1074
adamc@739	1075 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1076 if (n < 0)
adamc@737	1077 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1078 if (n >= ctx->app->inputs_len)
adamc@737	1079 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1080
adamc@756	1081 switch (INP(ctx)[n].kind) {
adamc@737	1082 case UNSET:
adamc@737	1083 {
adamc@739	1084 char *data = uw_malloc(ctx, 0);
adamc@740	1085 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1086 return f;
adamc@737	1087 }
adamc@739	1088 case FIL:
adamc@756	1089 return INP(ctx)[n].data.file;
adamc@737	1090 case NORMAL:
adamc@737	1091 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1092 case SUBFORM:
adamc@756	1093 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1094 case SUBFORMS:
adamc@759	1095 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1096 case ENTRY:
adamc@759	1097 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1098 default:
adamc@737	1099 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1100 }
adamc@190	1101 }
adamc@190	1102
adamc@756	1103 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1104 if (n < 0)
adamc@756	1105 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1106 if (n >= ctx->app->inputs_len)
adamc@756	1107 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1108
adamc@756	1109 switch (INP(ctx)[n].kind) {
adamc@756	1110 case UNSET:
adamc@756	1111 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1112 case FIL:
adamc@756	1113 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1114 case NORMAL:
adamc@756	1115 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1116 case SUBFORMS:
adamc@759	1117 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1118 case ENTRY:
adamc@759	1119 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1120 case SUBFORM:
adamc@759	1121 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1122 ctx->cur_container = &INP(ctx)[n];
adamc@756	1123 return;
adamc@756	1124 default:
adamc@756	1125 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1126 }
adamc@756	1127 }
adamc@756	1128
adamc@756	1129 void uw_leave_subform(uw_context ctx) {
adamc@756	1130 input *tmp;
adamc@756	1131
adamc@759	1132 if (ctx->cur_container == NULL)
adamc@756	1133 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1134
adamc@759	1135 tmp = ctx->cur_container;
adamc@759	1136 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1137 tmp->data.subform.parent = NULL;
adamc@759	1138 }
adamc@759	1139
adamc@759	1140 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1141 input *inps;
adamc@759	1142
adamc@759	1143 if (n < 0)
adamc@759	1144 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1145 if (n >= ctx->app->inputs_len)
adamc@759	1146 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1147
adamc@759	1148 switch (INP(ctx)[n].kind) {
adamc@759	1149 case UNSET:
adamc@759	1150 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1151 case FIL:
adamc@759	1152 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1153 case NORMAL:
adamc@759	1154 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1155 case SUBFORM:
adamc@759	1156 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1157 case ENTRY:
adamc@759	1158 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1159 case SUBFORMS:
adamc@759	1160 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1161 if (inps) {
adamc@759	1162 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1163 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1164 return 1;
adamc@759	1165 } else
adamc@759	1166 return 0;
adamc@759	1167 default:
adamc@759	1168 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1169 }
adamc@759	1170 }
adamc@759	1171
adamc@759	1172 int uw_next_entry(uw_context ctx) {
adamc@759	1173 if (ctx->cur_container == NULL)
adamc@759	1174 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1175
adamc@759	1176 switch (ctx->cur_container->kind) {
adamc@759	1177 case UNSET:
adamc@759	1178 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1179 case FIL:
adamc@759	1180 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1181 case NORMAL:
adamc@759	1182 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1183 case SUBFORM:
adamc@759	1184 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1185 case SUBFORMS:
adamc@759	1186 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1187 case ENTRY:
adamc@759	1188 if (ctx->cur_container->data.entry.next) {
adamc@759	1189 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1190 return 1;
adamc@759	1191 } else {
adamc@759	1192 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1193 return 0;
adamc@759	1194 }
adamc@759	1195 default:
adamc@759	1196 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1197 }
adamc@756	1198 }
adamc@756	1199
adamc@643	1200 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1201 ctx->script_header = s;
adamc@643	1202 }
adamc@643	1203
adamc@1094	1204 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1205 return ctx->app->url_prefix;
adamc@667	1206 }
adamc@667	1207
adamc@693	1208 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1209 ctx->needs_push = n;
adamc@693	1210 }
adamc@693	1211
adamc@736	1212 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1213 ctx->needs_sig = n;
adamc@736	1214 }
adamc@736	1215
adam@1936	1216 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936	1217 ctx->could_write_db = n;
adam@1936	1218 }
adam@1936	1219
adam@2056	1220 void uw_set_at_most_one_query(uw_context ctx, int n) {
adam@2056	1221 ctx->at_most_one_query = n;
adam@2056	1222 }
adam@2056	1223
adamc@667	1224
adam@1369	1225 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1226 if (b->back - b->front < extra) {
adamc@666	1227 size_t desired = b->front - b->start + extra, next;
adamc@136	1228 char *new_heap;
adamc@136	1229
adamc@666	1230 next = b->back - b->start;
adamc@317	1231 if (next == 0)
adamc@317	1232 next = 1;
adamc@317	1233 for (; next < desired; next *= 2);
adamc@136	1234
adamc@1134	1235 if (next > b->max) {
adamc@1113	1236 if (desired <= b->max)
adamc@1113	1237 next = desired;
adamc@1113	1238 else
adamc@1113	1239 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1240 }
adamc@1113	1241
adamc@666	1242 new_heap = realloc(b->start, next);
adamc@666	1243 b->front = new_heap + (b->front - b->start);
adamc@666	1244 b->back = new_heap + next;
adamc@136	1245
adamc@667	1246 if (new_heap != b->start) {
adamc@666	1247 b->start = new_heap;
adam@1389	1248 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1249 }
adamc@136	1250
adamc@666	1251 b->start = new_heap;
adamc@136	1252 }
adamc@136	1253 }
adamc@136	1254
adamc@832	1255 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1256 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1257 }
adamc@666	1258
adamc@832	1259 char *uw_heap_front(uw_context ctx) {
adamc@832	1260 return ctx->heap.front;
adamc@832	1261 }
adamc@832	1262
adamc@832	1263 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1264 ctx->heap.front = fr;
adamc@832	1265 }
adamc@832	1266
adam@1782	1267 void uw_begin_initializing(uw_context ctx) {
adam@1782	1268 ctx->amInitializing = 1;
adam@1782	1269 }
adam@1782	1270
adam@1782	1271 void uw_end_initializing(uw_context ctx) {
adam@1782	1272 ctx->amInitializing = 0;
adam@1782	1273 }
adam@1782	1274
adam@2013	1275 static void align_heap(uw_context ctx) {
adam@2013	1276 size_t posn = ctx->heap.front - ctx->heap.start;
adam@2013	1277
adam@2017	1278 if (posn % sizeof(void *) != 0) {
adam@2017	1279 size_t bump = sizeof(void ) - posn % sizeof(void );
adam@2013	1280 uw_check_heap(ctx, bump);
adam@2013	1281 ctx->heap.front += bump;
adam@2013	1282 }
adam@2013	1283 }
adam@2013	1284
adamc@311	1285 void *uw_malloc(uw_context ctx, size_t len) {
adam@2013	1286 // On some architectures, it's important that all word-sized memory accesses
adam@2013	1287 // be to word-aligned addresses, so we'll do a little bit of extra work here
adam@2013	1288 // in anticipation of a possible word-aligned access to the address we'll
adam@2013	1289 // return.
adam@2013	1290
adamc@136	1291 void *result;
adamc@136	1292
adam@1782	1293 if (ctx->amInitializing) {
adam@2017	1294 int error = posix_memalign(&result, sizeof(void *), len);
adam@2013	1295
adam@2013	1296 if (!error)
adam@1782	1297 return result;
adam@1782	1298 else
adam@2013	1299 uw_error(ctx, FATAL, "uw_malloc: posix_memalign() returns %d", error);
adam@1782	1300 } else {
adam@2013	1301 align_heap(ctx);
adam@2013	1302
adam@1782	1303 uw_check_heap(ctx, len);
adam@1782	1304
adam@1782	1305 result = ctx->heap.front;
adam@1782	1306 ctx->heap.front += len;
adam@1782	1307 return result;
adam@1782	1308 }
adamc@117	1309 }
adamc@117	1310
adamc@323	1311 void uw_begin_region(uw_context ctx) {
adam@2013	1312 align_heap(ctx);
adam@2013	1313
adamc@666	1314 regions r = (regions ) ctx->heap.front;
adamc@323	1315
adamc@323	1316 uw_check_heap(ctx, sizeof(regions));
adamc@323	1317
adamc@666	1318 ctx->heap.front += sizeof(regions);
adamc@323	1319
adamc@323	1320 r->next = ctx->regions;
adamc@323	1321 ctx->regions = r;
adamc@323	1322 }
adamc@323	1323
adamc@323	1324 void uw_end_region(uw_context ctx) {
adamc@323	1325 regions *r = ctx->regions;
adamc@323	1326
adamc@323	1327 if (r == NULL)
adamc@323	1328 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1329
adamc@666	1330 ctx->heap.front = (char *) r;
adamc@323	1331 ctx->regions = r->next;
adamc@323	1332 }
adamc@323	1333
adamc@324	1334 void uw_memstats(uw_context ctx) {
adam@1369	1335 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1336 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1337 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1338 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1339 }
adamc@324	1340
adam@1915	1341 int uw_pagelen(uw_context ctx) {
adam@1915	1342 return ctx->page.front - ctx->page.start;
adam@1915	1343 }
adam@1915	1344
adamc@311	1345 int uw_send(uw_context ctx, int sock) {
adam@1949	1346 size_t target_length = (ctx->outHeaders.front - ctx->outHeaders.start) + 2 + (ctx->page.front - ctx->page.start);
adam@1949	1347
adam@1949	1348 if (ctx->output_buffer_size < target_length) {
adam@1949	1349 do {
adam@1949	1350 ctx->output_buffer_size *= 2;
adam@1949	1351 } while (ctx->output_buffer_size < target_length);
adam@1949	1352 ctx->output_buffer = realloc(ctx->output_buffer, ctx->output_buffer_size);
adam@1949	1353 }
adam@1949	1354
adam@1949	1355 memcpy(ctx->output_buffer, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adam@1949	1356 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start), "\r\n", 2);
adam@1949	1357 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start) + 2, ctx->page.start, ctx->page.front - ctx->page.start);
adam@1949	1358
adam@1949	1359 return uw_really_send(sock, ctx->output_buffer, target_length);
adamc@462	1360 }
adamc@462	1361
adamc@856	1362 int uw_print(uw_context ctx, int fd) {
adamc@856	1363 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1364
adamc@856	1365 if (n < 0)
adamc@856	1366 return n;
adamc@856	1367
adamc@856	1368 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1369
adamc@856	1370 if (n < 0)
adamc@856	1371 return n;
adamc@856	1372
adamc@856	1373 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1374 }
adamc@856	1375
adamc@860	1376 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1377 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1378
adamc@860	1379 if (n < 0)
adamc@860	1380 return n;
adamc@860	1381
adamc@860	1382 n = output(data, "\r\n", 2);
adamc@860	1383
adamc@860	1384 if (n < 0)
adamc@860	1385 return n;
adamc@860	1386
adamc@860	1387 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1388 }
adamc@860	1389
adamc@462	1390 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1391 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1392 }
adamc@462	1393
adamc@462	1394 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1395 int len = strlen(s);
adamc@462	1396
adamc@462	1397 uw_check_headers(ctx, len + 1);
adamc@666	1398 strcpy(ctx->outHeaders.front, s);
adamc@666	1399 ctx->outHeaders.front += len;
adamc@562	1400 }
adamc@562	1401
adam@1934	1402 int uw_has_contentLength(uw_context ctx) {
adam@1934	1403 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934	1404 }
adam@1934	1405
adamc@1110	1406 void uw_clear_headers(uw_context ctx) {
adam@1369	1407 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1408 }
adamc@1110	1409
adam@1932	1410 void uw_Basis_clear_page(uw_context ctx) {
adam@1932	1411 uw_buffer_reset(&ctx->page);
adam@1932	1412 }
adam@1932	1413
adamc@562	1414 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1415 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1416 }
adamc@562	1417
adamc@562	1418 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1419 int len = strlen(s);
adamc@562	1420
adamc@562	1421 uw_check_script(ctx, len + 1);
adamc@666	1422 strcpy(ctx->script.front, s);
adamc@666	1423 ctx->script.front += len;
adamc@562	1424 }
adamc@562	1425
adam@1446	1426 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1427 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1428 uw_write_script(ctx, "sig=\"");
adam@1671	1429 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1430 uw_write_script(ctx, "\";");
adam@1671	1431 }
adam@1671	1432
adam@1446	1433 return ctx->script.start;
adam@1446	1434 }
adam@1446	1435
adamc@695	1436 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1437 if (s[0] == 0)
adamc@695	1438 return "";
adamc@695	1439 else {
adamc@695	1440 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1441 sprintf(r, " onload='%s'", s);
adamc@695	1442 return r;
adamc@695	1443 }
adamc@695	1444 }
adamc@695	1445
adamc@1042	1446 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1447 if (ctx->script_header[0] == 0)
adamc@1042	1448 return "";
adamc@1042	1449 else {
vshabanoff@1763	1450 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763	1451 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042	1452 return r;
adamc@1042	1453 }
adamc@1042	1454 }
adamc@1042	1455
adamc@694	1456 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1457 if (ctx->client == NULL) {
adamc@736	1458 if (ctx->needs_sig) {
adamc@1094	1459 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1460 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1461 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1462 return r;
adamc@736	1463 }
adamc@736	1464 else
adamc@736	1465 return "";
adamc@736	1466 } else {
adamc@1094	1467 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1468 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1469 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1470 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1471 (ctx->isPost ? "true" : "false"),
adamc@682	1472 ctx->client->id,
adamc@682	1473 ctx->client->pass,
adamc@1094	1474 ctx->app->url_prefix,
adamc@1094	1475 ctx->app->timeout,
adamc@736	1476 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1477 sig,
adamc@736	1478 ctx->needs_sig ? "\";" : "");
adamc@679	1479 return r;
adamc@668	1480 }
adamc@667	1481 }
adamc@667	1482
adamc@574	1483 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1484 char r, s2;
adamc@574	1485
adam@1446	1486 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1487
adamc@666	1488 r = s2 = ctx->heap.front;
adamc@574	1489 *s2++ = '"';
adamc@574	1490
adamc@574	1491 for (; *s; s++) {
adam@1286	1492 unsigned char c = *s;
adamc@574	1493
adamc@574	1494 switch (c) {
adamc@574	1495 case '"':
adamc@574	1496 strcpy(s2, "\\\"");
adamc@574	1497 s2 += 2;
adamc@574	1498 break;
adamc@1027	1499 case '\'':
adamc@1027	1500 strcpy(s2, "\\047");
adamc@1027	1501 s2 += 4;
adamc@1027	1502 break;
adamc@574	1503 case '\\':
adamc@574	1504 strcpy(s2, "\\\\");
adamc@574	1505 s2 += 2;
adamc@574	1506 break;
adam@1457	1507 case '<':
adam@1457	1508 strcpy(s2, "\\074");
adam@1457	1509 s2 += 4;
adam@1457	1510 break;
adamc@574	1511 default:
adam@1286	1512 if (isprint((int)c) \|\| c >= 128)
adamc@574	1513 *s2++ = c;
adamc@574	1514 else {
adam@1429	1515 sprintf(s2, "\\%03o", c);
adamc@574	1516 s2 += 4;
adamc@574	1517 }
adamc@574	1518 }
adamc@574	1519 }
adamc@574	1520
adamc@574	1521 strcpy(s2, "\"");
adamc@910	1522 ctx->heap.front = s2 + 2;
adamc@574	1523 return r;
adamc@574	1524 }
adamc@574	1525
adam@1286	1526 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1527 unsigned char c = c1;
adamc@1025	1528 char r, s2;
adamc@1025	1529
adam@1446	1530 uw_check_heap(ctx, 7);
adamc@1025	1531
adamc@1025	1532 r = s2 = ctx->heap.front;
adamc@1025	1533 *s2++ = '"';
adamc@1025	1534
adamc@1025	1535 switch (c) {
adamc@1025	1536 case '"':
adamc@1025	1537 strcpy(s2, "\\\"");
adamc@1025	1538 s2 += 2;
adamc@1025	1539 break;
adamc@1027	1540 case '\'':
adamc@1027	1541 strcpy(s2, "\\047");
adamc@1027	1542 s2 += 4;
adamc@1027	1543 break;
adamc@1025	1544 case '\\':
adamc@1025	1545 strcpy(s2, "\\\\");
adamc@1025	1546 s2 += 2;
adamc@1025	1547 break;
adam@1457	1548 case '<':
adam@1457	1549 strcpy(s2, "\\074");
adam@1457	1550 s2 += 4;
adam@1457	1551 break;
adamc@1025	1552 default:
adam@1286	1553 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1554 *s2++ = c;
adamc@1025	1555 else {
adam@1429	1556 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1557 s2 += 4;
adamc@1025	1558 }
adamc@1025	1559 }
adamc@1025	1560
adamc@1025	1561 strcpy(s2, "\"");
adamc@1025	1562 ctx->heap.front = s2 + 2;
adamc@1025	1563 return r;
adamc@1025	1564 }
adamc@1025	1565
adamc@574	1566 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1567 char r, s2;
adamc@574	1568
adam@1446	1569 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1570
adamc@666	1571 r = s2 = ctx->script.front;
adamc@574	1572 *s2++ = '"';
adamc@574	1573
adamc@574	1574 for (; *s; s++) {
adam@1286	1575 unsigned char c = *s;
adamc@574	1576
adamc@574	1577 switch (c) {
adamc@577	1578 case '\'':
adamc@1027	1579 strcpy(s2, "\\");
adamc@574	1580 s2 += 2;
adamc@574	1581 break;
adamc@574	1582 case '\\':
adamc@574	1583 strcpy(s2, "\\\\");
adamc@574	1584 s2 += 2;
adamc@574	1585 break;
adam@1457	1586 case '<':
adam@1457	1587 strcpy(s2, "\\074");
adam@1457	1588 s2 += 4;
adam@1457	1589 break;
adamc@574	1590 default:
adam@1286	1591 if (isprint((int)c) \|\| c >= 128)
adamc@574	1592 *s2++ = c;
adamc@574	1593 else {
adam@1429	1594 sprintf(s2, "\\%03o", c);
adamc@574	1595 s2 += 4;
adamc@574	1596 }
adamc@574	1597 }
adamc@574	1598 }
adamc@574	1599
adamc@574	1600 strcpy(s2, "\"");
adamc@666	1601 ctx->script.front = s2 + 1;
adamc@574	1602 return r;
adamc@574	1603 }
adamc@574	1604
adamc@682	1605 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1606 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1607 return "null";
adamc@682	1608 else {
adamc@682	1609 int len;
adamc@682	1610 char *r;
adamc@682	1611
adamc@682	1612 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1613 r = ctx->heap.front;
adamc@682	1614 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1615 ctx->heap.front += len+1;
adamc@682	1616 return r;
adamc@682	1617 }
adamc@682	1618 }
adamc@682	1619
adam@1446	1620 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1621 int len;
adamc@577	1622 size_t s_len = strlen(s);
adamc@562	1623
grrwlf@1998	1624 if(ctx->id < 0)
grrwlf@1998	1625 uw_error(ctx, FATAL, "Attempt to create client source using inappropriate context");
grrwlf@1998	1626
adam@1446	1627 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1628 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1629 ctx->script.front += len;
adamc@666	1630 strcpy(ctx->script.front, s);
adamc@666	1631 ctx->script.front += s_len;
adamc@970	1632 strcpy(ctx->script.front, "));");
adamc@972	1633 ctx->script.front += 3;
adamc@562	1634
adam@1446	1635 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1636 return r;
adam@1446	1637 }
adam@1446	1638
adam@1446	1639 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1640 int len;
adamc@577	1641 size_t s_len = strlen(s);
adamc@577	1642
adam@1446	1643 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1644 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1645 ctx->script.front += len;
adamc@666	1646 strcpy(ctx->script.front, s);
adamc@666	1647 ctx->script.front += s_len;
adamc@970	1648 strcpy(ctx->script.front, "));");
adamc@972	1649 ctx->script.front += 3;
adamc@577	1650
adamc@577	1651 return uw_unit_v;
adamc@577	1652 }
adamc@577	1653
adamc@311	1654 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1655 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1656 }
adamc@117	1657
adamc@311	1658 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1659 *(ctx->page.front)++ = c;
adam@1413	1660 *ctx->page.front = 0;
adamc@117	1661 }
adamc@117	1662
adamc@311	1663 void uw_writec(uw_context ctx, char c) {
adam@1413	1664 uw_check(ctx, 2);
adamc@311	1665 uw_writec_unsafe(ctx, c);
adamc@117	1666 }
adamc@117	1667
adam@2085	1668 void uw_Basis_writec(uw_context ctx, char c) {
adam@2085	1669 uw_writec(ctx, c);
adam@2085	1670 }
adam@2085	1671
adamc@311	1672 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1673 int len = strlen(s);
adamc@666	1674 memcpy(ctx->page.front, s, len);
adamc@666	1675 ctx->page.front += len;
adamc@117	1676 }
adamc@117	1677
adamc@311	1678 void uw_write(uw_context ctx, const char* s) {
adamc@311	1679 uw_check(ctx, strlen(s) + 1);
adamc@311	1680 uw_write_unsafe(ctx, s);
adamc@666	1681 *ctx->page.front = 0;
adamc@102	1682 }
adamc@106	1683
adamc@311	1684 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1685 char *result;
adamc@136	1686 int len;
adamc@311	1687 uw_check_heap(ctx, INTS_MAX);
adamc@666	1688 result = ctx->heap.front;
adamc@276	1689 sprintf(result, "%lld%n", n, &len);
adamc@666	1690 ctx->heap.front += len+1;
adamc@136	1691 return result;
adamc@106	1692 }
adamc@106	1693
adamc@311	1694 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1695 char *result;
adamc@136	1696 int len;
adamc@311	1697 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1698 result = ctx->heap.front;
adam@1920	1699 sprintf(result, "%.16g%n", n, &len);
adamc@666	1700 ctx->heap.front += len+1;
adamc@136	1701 return result;
adamc@106	1702 }
adamc@106	1703
adamc@311	1704 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1705 int len = strlen(s);
adamc@136	1706 char result, p;
adamc@311	1707 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1708
adamc@666	1709 result = p = ctx->heap.front;
adamc@136	1710
adamc@136	1711 for (; *s; s++) {
adamc@1054	1712 unsigned char c = *s;
adamc@136	1713
adamc@136	1714 if (c == '"') {
adamc@136	1715 strcpy(p, """);
adamc@136	1716 p += 6;
adamc@136	1717 } else if (c == '&') {
adamc@136	1718 strcpy(p, "&");
adamc@136	1719 p += 5;
adamc@136	1720 }
adamc@1059	1721 else
adamc@136	1722 *p++ = c;
adamc@136	1723 }
adamc@136	1724
adamc@137	1725 *p++ = 0;
adamc@666	1726 ctx->heap.front = p;
adamc@136	1727 return result;
adamc@106	1728 }
adamc@106	1729
adamc@1011	1730 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1731 char result, p;
adamc@1011	1732 uw_check_heap(ctx, 7);
adamc@1011	1733
adamc@1011	1734 result = p = ctx->heap.front;
adamc@1011	1735
adamc@1011	1736 if (c == '"') {
adamc@1011	1737 strcpy(p, """);
adamc@1011	1738 p += 6;
adamc@1011	1739 } else if (c == '&') {
adamc@1011	1740 strcpy(p, "&");
adamc@1011	1741 p += 5;
adamc@1011	1742 }
adamc@1059	1743 else
adamc@1011	1744 *p++ = c;
adamc@1011	1745
adamc@1011	1746 *p++ = 0;
adamc@1011	1747 ctx->heap.front = p;
adamc@1011	1748 return result;
adamc@1011	1749 }
adamc@1011	1750
adamc@721	1751 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1752 return s;
adamc@721	1753 }
adamc@721	1754
adamc@311	1755 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1756 int len;
adamc@117	1757
adamc@666	1758 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1759 ctx->page.front += len;
adamc@106	1760 }
adamc@106	1761
adamc@428	1762 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1763 uw_check(ctx, INTS_MAX);
adamc@311	1764 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1765
adamc@428	1766 return uw_unit_v;
adamc@106	1767 }
adamc@106	1768
adamc@428	1769 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1770 int len;
adamc@117	1771
adamc@311	1772 uw_check(ctx, FLOATS_MAX);
adamc@666	1773 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1774 ctx->page.front += len;
adamc@428	1775
adamc@428	1776 return uw_unit_v;
adamc@117	1777 }
adamc@117	1778
adamc@428	1779 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1780 uw_check(ctx, strlen(s) * 6);
adamc@117	1781
adamc@106	1782 for (; *s; s++) {
adamc@1054	1783 unsigned char c = *s;
adamc@106	1784
adamc@106	1785 if (c == '"')
adamc@311	1786 uw_write_unsafe(ctx, """);
adamc@136	1787 else if (c == '&')
adamc@311	1788 uw_write_unsafe(ctx, "&");
adamc@1059	1789 else
adamc@311	1790 uw_writec_unsafe(ctx, c);
adamc@106	1791 }
adamc@428	1792
adamc@428	1793 return uw_unit_v;
adamc@106	1794 }
adamc@120	1795
adamc@1011	1796 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1797 uw_check(ctx, 6);
adamc@1011	1798
adamc@1011	1799 if (c == '"')
adamc@1011	1800 uw_write_unsafe(ctx, """);
adamc@1011	1801 else if (c == '&')
adamc@1011	1802 uw_write_unsafe(ctx, "&");
adamc@1059	1803 else
adamc@1011	1804 uw_writec_unsafe(ctx, c);
adamc@1011	1805
adamc@1011	1806 return uw_unit_v;
adamc@1011	1807 }
adamc@1011	1808
adamc@120	1809
adamc@311	1810 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1811 int len;
adamc@137	1812 char *r;
adamc@137	1813
adamc@311	1814 uw_check_heap(ctx, INTS_MAX);
adamc@666	1815 r = ctx->heap.front;
adamc@276	1816 sprintf(r, "%lld%n", n, &len);
adamc@666	1817 ctx->heap.front += len+1;
adamc@137	1818 return r;
adamc@120	1819 }
adamc@120	1820
adamc@682	1821 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1822 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1823 return "";
adamc@682	1824 else {
adamc@682	1825 int len;
adamc@682	1826 char *r;
adamc@679	1827
adamc@682	1828 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1829 r = ctx->heap.front;
adamc@682	1830 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1831 ctx->heap.front += len+1;
adamc@682	1832 return r;
adamc@682	1833 }
adamc@679	1834 }
adamc@679	1835
adamc@311	1836 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1837 int len;
adamc@137	1838 char *r;
adamc@137	1839
adamc@311	1840 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1841 r = ctx->heap.front;
adamc@137	1842 sprintf(r, "%g%n", n, &len);
adamc@666	1843 ctx->heap.front += len+1;
adamc@137	1844 return r;
adamc@120	1845 }
adamc@120	1846
adamc@311	1847 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1848 char r, p;
adamc@137	1849
adamc@925	1850 if (s[0] == '\0')
adamc@925	1851 return "_";
adamc@925	1852
adamc@925	1853 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1854
adamc@925	1855 r = p = ctx->heap.front;
adamc@925	1856 if (s[0] == '_')
adamc@925	1857 *p++ = '_';
adamc@925	1858
adamc@925	1859 for (; *s; s++) {
adamc@1087	1860 unsigned char c = *s;
adamc@137	1861
adamc@137	1862 if (c == ' ')
adamc@137	1863 *p++ = '+';
adamc@137	1864 else if (isalnum(c))
adamc@137	1865 *p++ = c;
adamc@137	1866 else {
adamc@1259	1867 sprintf(p, ".%02X", c);
adamc@137	1868 p += 3;
adamc@137	1869 }
adamc@137	1870 }
adamc@137	1871
adamc@137	1872 *p++ = 0;
adamc@666	1873 ctx->heap.front = p;
adamc@137	1874 return r;
adamc@120	1875 }
adamc@120	1876
adamc@311	1877 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1878 if (b == uw_Basis_False)
adamc@186	1879 return "0";
adamc@186	1880 else
adamc@186	1881 return "1";
adamc@186	1882 }
adamc@186	1883
adam@1620	1884 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1885 char *r;
adam@1620	1886 int len;
adam@1620	1887 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1888 r = ctx->heap.front;
adam@1620	1889 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1890 ctx->heap.front += len+1;
adam@1620	1891 return r;
adam@1620	1892 }
adam@1620	1893
adamc@311	1894 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1895 int len;
adamc@120	1896
adamc@666	1897 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1898 ctx->page.front += len;
adamc@120	1899 }
adamc@120	1900
adamc@428	1901 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1902 uw_check(ctx, INTS_MAX);
adamc@311	1903 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1904
adamc@428	1905 return uw_unit_v;
adamc@120	1906 }
adamc@120	1907
adamc@682	1908 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1909 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1910 int len;
phurst@1981	1911
adamc@682	1912 uw_check(ctx, INTS_MAX + 1);
adamc@682	1913 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1914 ctx->page.front += len;
adamc@682	1915 }
phurst@1981	1916
adamc@679	1917 return uw_unit_v;
adamc@679	1918 }
adamc@679	1919
adamc@428	1920 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1921 int len;
adamc@120	1922
adamc@311	1923 uw_check(ctx, FLOATS_MAX);
adamc@666	1924 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1925 ctx->page.front += len;
adamc@428	1926
adamc@428	1927 return uw_unit_v;
adamc@120	1928 }
adamc@120	1929
adamc@488	1930 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1931 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1932 }
adamc@488	1933
adam@1404	1934 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1935 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1936 }
adam@1404	1937
adamc@428	1938 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1939 if (s[0] == '\0') {
adamc@925	1940 uw_check(ctx, 1);
adamc@925	1941 uw_writec_unsafe(ctx, '_');
adamc@925	1942 return uw_unit_v;
adamc@925	1943 }
adamc@925	1944
adamc@925	1945 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1946
adamc@925	1947 if (s[0] == '_')
adamc@925	1948 uw_writec_unsafe(ctx, '_');
adamc@120	1949
adamc@120	1950 for (; *s; s++) {
adamc@1087	1951 unsigned char c = *s;
adamc@120	1952
adamc@120	1953 if (c == ' ')
adamc@311	1954 uw_writec_unsafe(ctx, '+');
adamc@120	1955 else if (isalnum(c))
adamc@311	1956 uw_writec_unsafe(ctx, c);
adamc@120	1957 else {
adamc@1259	1958 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1959 ctx->page.front += 3;
adamc@120	1960 }
adamc@120	1961 }
adamc@428	1962
adamc@428	1963 return uw_unit_v;
adamc@120	1964 }
adamc@120	1965
adamc@428	1966 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1967 if (b == uw_Basis_False)
adamc@311	1968 uw_writec(ctx, '0');
adamc@186	1969 else
adamc@311	1970 uw_writec(ctx, '1');
adamc@428	1971
adamc@428	1972 return uw_unit_v;
adamc@186	1973 }
adamc@186	1974
adam@1620	1975 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	1976 int len;
phurst@1981	1977
adam@1620	1978 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	1979 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1980 ctx->page.front += len;
phurst@1981	1981
adam@1620	1982 return uw_unit_v;
adam@1620	1983 }
adam@1620	1984
adamc@120	1985
adamc@311	1986 static char uw_unurlify_advance(char s) {
adamc@144	1987 char *new_s = strchr(s, '/');
adamc@120	1988
adamc@120	1989 if (new_s)
adamc@120	1990 *new_s++ = 0;
adamc@120	1991 else
adamc@144	1992 new_s = strchr(s, 0);
adamc@144	1993
adamc@144	1994 return new_s;
adamc@144	1995 }
adamc@144	1996
adamc@311	1997 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1998 char new_s = uw_unurlify_advance(s);
adamc@311	1999 uw_Basis_int r;
adamc@120	2000
adamc@276	2001 r = atoll(*s);
adamc@120	2002 *s = new_s;
adamc@120	2003 return r;
adamc@120	2004 }
adamc@120	2005
adamc@311	2006 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	2007 char new_s = uw_unurlify_advance(s);
adamc@311	2008 uw_Basis_float r;
adamc@120	2009
adamc@120	2010 r = atof(*s);
adamc@120	2011 *s = new_s;
adamc@120	2012 return r;
adamc@120	2013 }
adamc@120	2014
adamc@488	2015 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	2016 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	2017 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	2018 return r;
adamc@488	2019 }
adamc@488	2020
adamc@1023	2021 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	2022 char s1, s2 = s;
adamc@144	2023 int n;
adamc@136	2024
adamc@1023	2025 if (!fromClient) {
adamc@1023	2026 if (*s2 == '_')
adamc@1023	2027 ++s2;
adamc@1259	2028 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	2029 s2 += 3;
adamc@1023	2030 }
adamc@925	2031
adamc@927	2032 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	2033 unsigned char c = *s2;
adamc@136	2034
adamc@136	2035 switch (c) {
adamc@136	2036 case '+':
adamc@136	2037 *s1 = ' ';
adamc@136	2038 break;
adamc@136	2039 case '%':
adamc@169	2040 if (s2[1] == 0)
adamc@311	2041 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	2042 if (s2[2] == 0)
adamc@311	2043 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	2044 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2045 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	2046 *s1 = n;
adamc@136	2047 s2 += 2;
adamc@136	2048 break;
adamc@1259	2049 case '.':
adamc@1259	2050 if (!fromClient) {
adamc@1259	2051 if (s2[1] == 0)
adamc@1259	2052 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	2053 if (s2[2] == 0)
adamc@1259	2054 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	2055 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2056 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	2057 *s1 = n;
adamc@1259	2058 s2 += 2;
adamc@1259	2059 break;
adamc@1259	2060 }
adamc@136	2061 default:
adamc@136	2062 *s1 = c;
adamc@136	2063 }
adamc@136	2064 }
adamc@136	2065 *s1++ = 0;
adamc@144	2066 return s1;
adamc@144	2067 }
adamc@144	2068
adamc@311	2069 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	2070 char new_s = uw_unurlify_advance(s);
adamc@311	2071 uw_Basis_bool r;
phurst@1981	2072
adamc@186	2073 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2074 r = uw_Basis_False;
adamc@186	2075 else
adamc@311	2076 r = uw_Basis_True;
adamc@186	2077
adamc@186	2078 *s = new_s;
adamc@186	2079 return r;
adamc@186	2080 }
adamc@186	2081
adamc@311	2082 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2083 char new_s = uw_unurlify_advance(s);
adamc@1134	2084 char *r;
adamc@1134	2085 int len;
adamc@144	2086
adamc@200	2087 len = strlen(*s);
adamc@311	2088 uw_check_heap(ctx, len + 1);
adamc@144	2089
adamc@666	2090 r = ctx->heap.front;
adamc@1023	2091 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2092 *s = new_s;
adamc@1023	2093 return r;
adamc@1023	2094 }
adamc@1023	2095
adamc@1109	2096 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2097 s = uw_unurlify_advance(s);
adamc@1109	2098 return uw_unit_v;
adamc@1109	2099 }
adamc@1109	2100
adamc@1023	2101 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2102 char new_s = uw_unurlify_advance(s);
adamc@1134	2103 char *r;
adamc@1134	2104 int len;
adamc@1023	2105
adamc@1023	2106 len = strlen(*s);
adamc@1023	2107 uw_check_heap(ctx, len + 1);
adamc@1023	2108
adamc@1023	2109 r = ctx->heap.front;
adamc@1023	2110 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2111 *s = new_s;
adamc@136	2112 return r;
adamc@120	2113 }
adamc@135	2114
adamc@135	2115
adamc@311	2116 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2117 int len;
adamc@286	2118 char *r;
adamc@286	2119
adamc@311	2120 uw_check_heap(ctx, INTS_MAX);
adamc@666	2121 r = ctx->heap.front;
adamc@286	2122 sprintf(r, "%lld%n", n, &len);
adamc@666	2123 ctx->heap.front += len+1;
adamc@286	2124 return r;
adamc@286	2125 }
adamc@286	2126
adamc@428	2127 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2128 int len;
adamc@286	2129
adamc@311	2130 uw_check(ctx, INTS_MAX);
adamc@666	2131 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2132 ctx->page.front += len;
phurst@1981	2133
adamc@428	2134 return uw_unit_v;
adamc@286	2135 }
adamc@286	2136
adam@1358	2137 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2138 unsigned int n = ch;
adam@1358	2139 int len;
adam@1358	2140 char *r;
adam@1358	2141
adam@1358	2142 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2143 r = ctx->heap.front;
adam@1358	2144 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2145 ctx->heap.front += len+1;
adam@1358	2146 return r;
adam@1358	2147 }
adam@1358	2148
adam@1358	2149 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2150 unsigned int n = ch;
adam@1358	2151 int len;
adam@1358	2152
adam@1358	2153 uw_check(ctx, INTS_MAX+3);
adam@1358	2154 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2155 ctx->page.front += len;
adam@1358	2156 return uw_unit_v;
adam@1358	2157 }
adam@1358	2158
adamc@311	2159 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2160 int len;
adamc@286	2161 char *r;
adamc@286	2162
adamc@311	2163 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2164 r = ctx->heap.front;
adamc@286	2165 sprintf(r, "%g%n", n, &len);
adamc@666	2166 ctx->heap.front += len+1;
adamc@286	2167 return r;
adamc@286	2168 }
adamc@286	2169
adamc@428	2170 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2171 int len;
adamc@286	2172
adamc@311	2173 uw_check(ctx, FLOATS_MAX);
adamc@666	2174 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2175 ctx->page.front += len;
adamc@428	2176
adamc@428	2177 return uw_unit_v;
adamc@286	2178 }
adamc@286	2179
adam@1365	2180 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2181 int len;
adam@1360	2182 char *r;
adam@1360	2183
adam@1360	2184 uw_check_heap(ctx, INTS_MAX);
adam@1360	2185 r = ctx->heap.front;
adamc@1377	2186 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2187 ctx->heap.front += len+1;
adam@1360	2188 return r;
adam@1360	2189 }
adam@1360	2190
adam@1365	2191 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2192 int len;
adam@1360	2193
adam@1360	2194 uw_check(ctx, INTS_MAX);
adam@1360	2195 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2196 ctx->page.front += len;
phurst@1981	2197
adam@1360	2198 return uw_unit_v;
adam@1360	2199 }
adam@1360	2200
adam@1444	2201 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2202 char r, s2;
adamc@137	2203
adamc@311	2204 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2205
adamc@666	2206 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2207 unsigned char c = *s;
adamc@137	2208
adamc@137	2209 switch (c) {
adamc@137	2210 case '<':
adamc@137	2211 strcpy(s2, "<");
adamc@137	2212 s2 += 4;
adamc@137	2213 break;
adamc@137	2214 case '&':
adamc@137	2215 strcpy(s2, "&");
adamc@137	2216 s2 += 5;
adamc@137	2217 break;
adamc@137	2218 default:
adamc@1059	2219 *s2++ = c;
adamc@137	2220 }
adamc@137	2221 }
adamc@137	2222
adamc@137	2223 *s2++ = 0;
adamc@666	2224 ctx->heap.front = s2;
adamc@137	2225 return r;
adamc@135	2226 }
adamc@135	2227
adamc@428	2228 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2229 uw_check(ctx, strlen(s) * 6);
adamc@135	2230
adamc@135	2231 for (; *s; s++) {
adamc@1054	2232 unsigned char c = *s;
adamc@135	2233
adamc@135	2234 switch (c) {
adamc@135	2235 case '<':
adamc@311	2236 uw_write_unsafe(ctx, "<");
adamc@135	2237 break;
adamc@135	2238 case '&':
adamc@311	2239 uw_write_unsafe(ctx, "&");
adamc@135	2240 break;
adamc@135	2241 default:
adamc@1059	2242 uw_writec_unsafe(ctx, c);
adamc@135	2243 }
adamc@135	2244 }
adamc@428	2245
adamc@428	2246 return uw_unit_v;
adamc@135	2247 }
adamc@180	2248
adamc@311	2249 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2250 if (b == uw_Basis_False)
adamc@286	2251 return "False";
adamc@286	2252 else
adamc@286	2253 return "True";
adamc@286	2254 }
adamc@286	2255
adamc@428	2256 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2257 if (b == uw_Basis_False) {
adamc@311	2258 uw_check(ctx, 6);
adamc@666	2259 strcpy(ctx->page.front, "False");
adamc@666	2260 ctx->page.front += 5;
adamc@286	2261 } else {
adamc@311	2262 uw_check(ctx, 5);
adamc@666	2263 strcpy(ctx->page.front, "True");
adamc@666	2264 ctx->page.front += 4;
adamc@286	2265 }
adamc@428	2266
adamc@428	2267 return uw_unit_v;
adamc@286	2268 }
adamc@286	2269
adamc@436	2270 #define TIME_FMT "%x %X"
adamc@438	2271 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2272 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2273
adam@1629	2274 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2275
adamc@436	2276 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2277 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2278 }
adamc@436	2279
adamc@436	2280 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2281 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2282 }
adamc@436	2283
adam@1446	2284 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2285 int len;
adam@1446	2286 char *r;
adam@1446	2287
adam@1446	2288 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2289 r = ctx->heap.front;
adam@1446	2290 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2291 ctx->heap.front += len+1;
adam@1446	2292 return r;
adam@1446	2293 }
adam@1446	2294
adam@1446	2295 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2296 int len;
adam@1446	2297
adam@1446	2298 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2299 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2300 ctx->page.front += len;
phurst@1981	2301
adam@1446	2302 return uw_unit_v;
adam@1446	2303 }
adam@1446	2304
adamc@821	2305 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2306 while (n >= 0) {
adam@1388	2307 if (*s == 0)
adam@1388	2308 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2309
adam@1388	2310 if (n == 0)
adam@1388	2311 return *s;
adam@1388	2312
adam@1388	2313 --n;
adam@1388	2314 ++s;
adam@1388	2315 }
adam@1388	2316
adam@1388	2317 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2318 }
adamc@821	2319
adamc@821	2320 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2321 while (n >= 0) {
adam@1388	2322 if (*s == 0 \|\| n == 0)
adam@1388	2323 return s;
adam@1388	2324
adam@1388	2325 --n;
adam@1388	2326 ++s;
adam@1388	2327 }
adam@1388	2328
adam@1388	2329 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2330 }
adamc@821	2331
adamc@828	2332 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2333 return strlen(s);
adamc@828	2334 }
adamc@828	2335
adam@1388	2336 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2337 while (n > 0) {
adam@1388	2338 if (*s == 0)
adam@1388	2339 return uw_Basis_False;
adam@1388	2340
adam@1388	2341 --n;
adam@1388	2342 ++s;
adam@1388	2343 }
adam@1388	2344
adam@1388	2345 return uw_Basis_True;
adam@1388	2346 }
adam@1388	2347
adamc@829	2348 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2349 return strchr(s, ch);
adamc@829	2350 }
adamc@829	2351
adamc@831	2352 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2353 return strcspn(s, chs);
adamc@831	2354 }
adamc@831	2355
adamc@829	2356 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2357 uw_Basis_string r = strchr(s, ch);
adamc@829	2358 if (r == NULL)
adamc@829	2359 return NULL;
adamc@829	2360 else {
adamc@829	2361 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2362 *nr = r - s;
adamc@829	2363 return nr;
adamc@829	2364 }
adamc@829	2365 }
adamc@829	2366
adam@1390	2367 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2368 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2369 if (r == NULL)
adam@1390	2370 return NULL;
adam@1390	2371 else {
adam@1390	2372 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2373 *nr = r - haystack;
adam@1390	2374 return nr;
adam@1390	2375 }
adam@1390	2376 }
adam@1390	2377
adamc@311	2378 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2379 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2380 char *s;
adamc@180	2381
adamc@311	2382 uw_check_heap(ctx, len);
adamc@180	2383
adamc@666	2384 s = ctx->heap.front;
adamc@180	2385
adamc@180	2386 strcpy(s, s1);
adamc@180	2387 strcat(s, s2);
adamc@666	2388 ctx->heap.front += len;
adamc@180	2389
adamc@180	2390 return s;
adamc@180	2391 }
adamc@278	2392
adamc@829	2393 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2394 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2395
adamc@829	2396 if (start < 0)
adamc@829	2397 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2398 if (len < 0)
adamc@829	2399 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2400 if (start + len > full_len)
adamc@829	2401 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2402
adamc@829	2403 if (start + len == full_len)
adamc@829	2404 return &s[start];
adamc@829	2405 else {
adamc@829	2406 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2407 memcpy(r, s+start, len);
adamc@829	2408 r[len] = 0;
adamc@829	2409 return r;
adamc@829	2410 }
phurst@1981	2411
adamc@829	2412 }
adamc@829	2413
adamc@1023	2414 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2415 char *r;
adamc@1023	2416
adamc@1023	2417 uw_check_heap(ctx, 2);
adamc@1023	2418 r = ctx->heap.front;
adamc@1023	2419 r[0] = ch;
adamc@1023	2420 r[1] = 0;
adamc@1023	2421
adamc@1023	2422 ctx->heap.front += 2;
adamc@1023	2423
adamc@1023	2424 return r;
adamc@1023	2425 }
adamc@1023	2426
adamc@737	2427 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2428 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2429 char *s;
adamc@278	2430
adamc@311	2431 uw_check_heap(ctx, len);
adamc@278	2432
adamc@666	2433 s = ctx->heap.front;
adamc@278	2434
adamc@278	2435 strcpy(s, s1);
adamc@666	2436 ctx->heap.front += len;
adamc@278	2437
adamc@278	2438 return s;
adamc@278	2439 }
adamc@280	2440
adam@1295	2441 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2442 if (ctx->error_message[0]) {
adam@1295	2443 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2444 ctx->error_message[0] = 0;
adam@1295	2445 return s;
adam@1295	2446 } else
adam@1295	2447 return NULL;
adam@1295	2448 }
adam@1295	2449
adamc@737	2450 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2451 if (s1)
adamc@737	2452 return uw_strdup(ctx, s1);
adamc@493	2453 else
adamc@493	2454 return NULL;
adamc@493	2455 }
adamc@493	2456
adamc@742	2457 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2458 char *r = uw_malloc(ctx, len);
adamc@742	2459 memcpy(r, p, len);
adamc@742	2460 return r;
adamc@742	2461 }
adamc@280	2462
adamc@879	2463 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2464
adamc@311	2465 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2466 int len;
adamc@281	2467 char *r;
adamc@281	2468
adamc@311	2469 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2470 r = ctx->heap.front;
adamc@879	2471 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2472 ctx->heap.front += len+1;
adamc@281	2473 return r;
adamc@281	2474 }
adamc@281	2475
adamc@467	2476 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2477 if (n == NULL)
adamc@467	2478 return "NULL";
adamc@467	2479 else
adamc@467	2480 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2481 }
adamc@467	2482
adam@1920	2483 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879	2484
adamc@311	2485 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2486 int len;
adamc@281	2487 char *r;
adamc@281	2488
adamc@311	2489 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2490 r = ctx->heap.front;
adamc@879	2491 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2492 ctx->heap.front += len+1;
adamc@281	2493 return r;
adamc@281	2494 }
adamc@281	2495
adamc@467	2496 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2497 if (n == NULL)
adamc@467	2498 return "NULL";
adamc@467	2499 else
adamc@467	2500 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2501 }
adamc@467	2502
adam@1834	2503 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2504 char *uw_sqlsuffixString = "::text";
adamc@1011	2505 char *uw_sqlsuffixChar = "::char";
adamc@281	2506
adamc@311	2507 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2508 char r, s2;
adamc@280	2509
adamc@879	2510 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2511
adamc@666	2512 r = s2 = ctx->heap.front;
adamc@879	2513 if (uw_Estrings)
adamc@879	2514 *s2++ = 'E';
adamc@280	2515 *s2++ = '\'';
adamc@280	2516
adamc@280	2517 for (; *s; s++) {
adamc@280	2518 char c = *s;
adamc@280	2519
adamc@280	2520 switch (c) {
adamc@280	2521 case '\'':
adamc@885	2522 if (uw_Estrings)
adamc@885	2523 strcpy(s2, "\\'");
adamc@885	2524 else
adamc@885	2525 strcpy(s2, "''");
adamc@280	2526 s2 += 2;
adamc@280	2527 break;
adamc@280	2528 case '\\':
adamc@885	2529 if (uw_Estrings) {
adamc@885	2530 strcpy(s2, "\\\\");
adamc@885	2531 s2 += 2;
adamc@885	2532 } else
adamc@885	2533 *s2++ = '\\';
adamc@280	2534 break;
adamc@280	2535 default:
adamc@1150	2536 if (isprint((int)c))
adamc@280	2537 *s2++ = c;
adamc@879	2538 else if (uw_Estrings) {
adam@1857	2539 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2540 s2 += 4;
adamc@280	2541 }
adamc@879	2542 else
adam@1689	2543 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2544 }
adamc@280	2545 }
adamc@280	2546
adamc@879	2547 *s2++ = '\'';
adamc@879	2548 strcpy(s2, uw_sqlsuffixString);
adamc@879	2549 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2550 return r;
adamc@280	2551 }
adamc@281	2552
adamc@1011	2553 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2554 char r, s2;
adamc@1011	2555
adamc@1011	2556 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2557
adamc@1011	2558 r = s2 = ctx->heap.front;
adamc@1011	2559 if (uw_Estrings)
adamc@1011	2560 *s2++ = 'E';
adamc@1011	2561 *s2++ = '\'';
adamc@1011	2562
adamc@1011	2563 switch (c) {
adamc@1011	2564 case '\'':
adamc@1011	2565 if (uw_Estrings)
adamc@1011	2566 strcpy(s2, "\\'");
adamc@1011	2567 else
adamc@1011	2568 strcpy(s2, "''");
adamc@1011	2569 s2 += 2;
adamc@1011	2570 break;
adamc@1011	2571 case '\\':
adamc@1011	2572 if (uw_Estrings) {
adamc@1011	2573 strcpy(s2, "\\\\");
adamc@1011	2574 s2 += 2;
adamc@1011	2575 } else
adamc@1011	2576 *s2++ = '\\';
adamc@1011	2577 break;
adamc@1011	2578 default:
adamc@1150	2579 if (isprint((int)c))
adamc@1011	2580 *s2++ = c;
adamc@1011	2581 else if (uw_Estrings) {
adam@1857	2582 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2583 s2 += 4;
adamc@1011	2584 }
adamc@1011	2585 else
adamc@1011	2586 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2587 }
adamc@1011	2588
adamc@1011	2589 *s2++ = '\'';
adamc@1011	2590 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2591 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2592 return r;
adamc@1011	2593 }
adamc@1011	2594
adamc@879	2595 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2596
adam@1867	2597 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2598 char r, s2;
adamc@737	2599 size_t i;
adamc@737	2600
adam@1867	2601 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2602
adamc@737	2603 r = s2 = ctx->heap.front;
adamc@879	2604 if (uw_Estrings)
adamc@879	2605 *s2++ = 'E';
adam@1867	2606 else
adam@1867	2607 *s2++ = 'X';
adamc@737	2608 *s2++ = '\'';
adamc@737	2609
adamc@737	2610 for (i = 0; i < b.size; ++i) {
adam@1867	2611 unsigned char c = b.data[i];
adam@1867	2612
adam@1867	2613 if (uw_Estrings) {
adam@1867	2614 switch (c) {
adam@1867	2615 case '\'':
adamc@885	2616 strcpy(s2, "\\'");
adam@1867	2617 s2 += 2;
adam@1867	2618 break;
adam@1867	2619 case '\\':
adamc@885	2620 strcpy(s2, "\\\\\\\\");
adamc@885	2621 s2 += 4;
adam@1867	2622 break;
adam@1867	2623 default:
adam@1867	2624 if (isprint((int)c))
adam@1867	2625 *s2++ = c;
adam@1867	2626 else {
adam@1867	2627 sprintf(s2, "\\\\%03o", c);
adam@1867	2628 s2 += 5;
adam@1867	2629 }
adamc@737	2630 }
adam@1867	2631 } else {
adam@1867	2632 sprintf(s2, "%02X", c);
adam@1867	2633 s2 += 2;
adamc@737	2634 }
phurst@1981	2635 }
adamc@737	2636
adamc@879	2637 *s2++ = '\'';
adamc@879	2638 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2639 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2640 return r;
adamc@737	2641 }
adamc@737	2642
adamc@682	2643 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2644 int len;
adamc@682	2645 char *r;
adamc@682	2646 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2647
adamc@682	2648 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2649 r = ctx->heap.front;
adamc@879	2650 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2651 ctx->heap.front += len+1;
adamc@682	2652 return r;
adamc@682	2653 }
adamc@682	2654
adamc@682	2655 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2656 int len;
adamc@682	2657 char *r;
adamc@682	2658 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2659
adamc@682	2660 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2661 r = ctx->heap.front;
adamc@682	2662 sprintf(r, "%lld%n", combo, &len);
adamc@682	2663 ctx->heap.front += len+1;
adamc@682	2664 return r;
adamc@682	2665 }
adamc@682	2666
adamc@879	2667 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2668
adamc@682	2669 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2670 int len;
adamc@682	2671 char *r;
adamc@682	2672
adamc@682	2673 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2674 r = ctx->heap.front;
adamc@879	2675 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2676 ctx->heap.front += len+1;
adamc@682	2677 return r;
adamc@682	2678 }
adamc@682	2679
adamc@682	2680 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2681 int len;
adamc@682	2682 char *r;
adamc@682	2683
adamc@682	2684 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2685 r = ctx->heap.front;
adamc@682	2686 sprintf(r, "%u%n", cli, &len);
adamc@682	2687 ctx->heap.front += len+1;
adamc@682	2688 return r;
adamc@682	2689 }
adamc@682	2690
adamc@467	2691 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2692 if (s == NULL)
adamc@467	2693 return "NULL";
adamc@467	2694 else
adamc@467	2695 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2696 }
adamc@467	2697
adamc@311	2698 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2699 if (b == uw_Basis_False)
adamc@281	2700 return "FALSE";
adamc@281	2701 else
adamc@281	2702 return "TRUE";
adamc@281	2703 }
adamc@282	2704
adamc@467	2705 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2706 if (b == NULL)
adamc@467	2707 return "NULL";
adamc@467	2708 else
adamc@467	2709 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2710 }
adamc@467	2711
adamc@439	2712 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2713 size_t len;
adamc@682	2714 char r, s;
adam@1392	2715 struct tm stm = {};
adam@1392	2716 stm.tm_isdst = -1;
adamc@682	2717
adam@1365	2718 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2719 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2720 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2721 if (uw_sql_type_annotations) {
adam@1834	2722 if (t.microseconds) {
adam@1834	2723 r = uw_malloc(ctx, len + 21);
adam@1834	2724 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2725 } else {
adam@1834	2726 r = uw_malloc(ctx, len + 14);
adam@1834	2727 sprintf(r, "'%s'::timestamp", s);
adam@1834	2728 }
adam@1367	2729 } else {
adam@1834	2730 r = uw_malloc(ctx, len + 3);
adam@1834	2731 sprintf(r, "'%s'", s);
adam@1367	2732 }
adamc@682	2733 return r;
adamc@682	2734 } else
adamc@682	2735 return "<Invalid time>";
adamc@682	2736 }
adamc@682	2737
adamc@682	2738 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2739 size_t len;
adamc@439	2740 char *r;
adam@1392	2741 struct tm stm = {};
adam@1392	2742 stm.tm_isdst = -1;
adamc@439	2743
adam@1365	2744 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2745 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2746 r = ctx->heap.front;
adamc@439	2747 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2748 ctx->heap.front += len+1;
adamc@439	2749 return r;
adamc@439	2750 } else
adamc@439	2751 return "<Invalid time>";
adamc@439	2752 }
adamc@439	2753
adam@1364	2754 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2755 size_t len;
adam@1364	2756 char *r;
adam@1392	2757 struct tm stm = {};
adam@1392	2758 stm.tm_isdst = -1;
adam@1364	2759
adam@1365	2760 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2761 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2762 r = ctx->heap.front;
adam@1365	2763 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2764 ctx->heap.front += len;
adam@1365	2765 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2766 ctx->heap.front += 8;
adam@1364	2767 return r;
adam@1364	2768 } else
adam@1364	2769 return "<Invalid time>";
adam@1364	2770 }
adam@1364	2771
adamc@467	2772 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2773 if (t == NULL)
adamc@467	2774 return "NULL";
adamc@467	2775 else
adamc@467	2776 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2777 }
adamc@467	2778
adamc@311	2779 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2780 static uw_Basis_int true = 1;
adamc@311	2781 static uw_Basis_int false = 0;
adamc@282	2782
adamc@311	2783 if (b == uw_Basis_False)
adamc@282	2784 return (char *)&false;
adamc@282	2785 else
adamc@282	2786 return (char *)&true;
adamc@282	2787 }
adamc@284	2788
adamc@311	2789 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2790 int len;
adamc@284	2791 char *r;
adamc@284	2792
adamc@311	2793 uw_check_heap(ctx, INTS_MAX);
adamc@666	2794 r = ctx->heap.front;
adamc@284	2795 sprintf(r, "%lld%n", n, &len);
adamc@666	2796 ctx->heap.front += len+1;
adamc@284	2797 return r;
adamc@284	2798 }
adamc@285	2799
adamc@311	2800 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2801 int len;
adamc@285	2802 char *r;
adamc@285	2803
adamc@311	2804 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2805 r = ctx->heap.front;
adamc@285	2806 sprintf(r, "%g%n", n, &len);
adamc@666	2807 ctx->heap.front += len+1;
adamc@285	2808 return r;
adamc@285	2809 }
adamc@285	2810
adamc@821	2811 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2812 char *r = uw_malloc(ctx, 2);
adamc@821	2813 r[0] = ch;
adamc@821	2814 r[1] = 0;
adamc@821	2815 return r;
adamc@821	2816 }
adamc@821	2817
adamc@311	2818 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2819 if (b == uw_Basis_False)
adamc@285	2820 return "False";
adamc@285	2821 else
adamc@285	2822 return "True";
adamc@285	2823 }
adamc@288	2824
adam@1359	2825 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2826 size_t len;
adam@1352	2827 char *r;
adam@1392	2828 struct tm stm = {};
adam@1392	2829 stm.tm_isdst = -1;
adam@1352	2830
adam@1365	2831 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2832 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2833 r = ctx->heap.front;
adam@1352	2834 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2835 ctx->heap.front += len+1;
adam@1352	2836 return r;
adam@1352	2837 } else
adam@1352	2838 return "<Invalid time>";
adam@1352	2839 }
adam@1352	2840
adam@1629	2841 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2842 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2843 }
adam@1629	2844
adamc@311	2845 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2846 char *endptr;
adamc@311	2847 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2848
adamc@288	2849 if (s != '\0' && endptr == '\0') {
adamc@311	2850 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2851 *r = n;
adamc@288	2852 return r;
adamc@288	2853 } else
adamc@288	2854 return NULL;
adamc@288	2855 }
adamc@289	2856
adamc@311	2857 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2858 char *endptr;
adamc@311	2859 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2860
adamc@289	2861 if (s != '\0' && endptr == '\0') {
adamc@311	2862 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2863 *r = n;
adamc@289	2864 return r;
adamc@289	2865 } else
adamc@289	2866 return NULL;
adamc@289	2867 }
adamc@289	2868
adamc@821	2869 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2870 if (s[0] == 0) {
adamc@821	2871 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2872 r[0] = 0;
adamc@821	2873 return r;
adamc@821	2874 } else if (s[1] != 0)
adamc@821	2875 return NULL;
adamc@821	2876 else {
adamc@821	2877 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2878 r[0] = s[0];
adamc@821	2879 return r;
adamc@821	2880 }
adamc@821	2881 }
adamc@821	2882
adamc@311	2883 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2884 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2885 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2886
adamc@289	2887 if (!strcasecmp (s, "True"))
adamc@289	2888 return &true;
adamc@289	2889 else if (!strcasecmp (s, "False"))
adamc@289	2890 return &false;
adamc@289	2891 else
adamc@289	2892 return NULL;
adamc@289	2893 }
adamc@292	2894
adamc@436	2895 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2896 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2897 struct tm stm = {};
adam@1392	2898 stm.tm_isdst = -1;
adamc@436	2899
adamc@439	2900 if (dot) {
adamc@439	2901 *dot = 0;
adamc@439	2902 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2903 *dot = '.';
adamc@439	2904 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2905 r->seconds = mktime(&stm);
adam@1365	2906 r->microseconds = 0;
adamc@439	2907 return r;
adamc@439	2908 }
adamc@439	2909 else {
adamc@439	2910 *dot = '.';
adamc@439	2911 return NULL;
adamc@439	2912 }
adamc@436	2913 }
adamc@439	2914 else {
adam@2072	2915 if (strptime(s, ctx->app->time_format, &stm) == end) {
adamc@439	2916 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2917 r->seconds = mktime(&stm);
adam@1365	2918 r->microseconds = 0;
adamc@439	2919 return r;
adam@2072	2920 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@2072	2921 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@2072	2922 r->seconds = mktime(&stm);
adam@2072	2923 r->microseconds = 0;
adam@2072	2924 return r;
adam@2072	2925 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2926 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2927 r->seconds = mktime(&stm);
adam@1365	2928 r->microseconds = 0;
adamc@439	2929 return r;
adam@1632	2930 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2931 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2932 r->seconds = mktime(&stm);
adam@1632	2933 r->microseconds = 0;
adam@1632	2934 return r;
adamc@439	2935 }
adamc@439	2936 else
adamc@439	2937 return NULL;
adamc@439	2938 }
adamc@436	2939 }
adamc@436	2940
adam@1352	2941 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2942 char *end = strchr(s, 0);
adam@1374	2943 struct tm stm = {};
adam@1392	2944 stm.tm_isdst = -1;
adam@1352	2945
adam@1352	2946 if (strptime(s, fmt, &stm) == end) {
adam@1352	2947 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2948 r->seconds = mktime(&stm);
adam@1365	2949 r->microseconds = 0;
adam@1352	2950 return r;
adam@1352	2951 }
adam@1352	2952 else
adam@1352	2953 return NULL;
adam@1352	2954 }
adam@1352	2955
adamc@311	2956 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2957 char *endptr;
adamc@311	2958 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2959
adamc@292	2960 if (s != '\0' && endptr == '\0')
adamc@292	2961 return n;
adamc@292	2962 else
adam@1444	2963 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2964 }
adamc@293	2965
adamc@682	2966 #include <errno.h>
adamc@682	2967
adamc@678	2968 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2969 unsigned long long n;
adamc@682	2970
adamc@682	2971 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2972 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	2973 else {
adamc@682	2974 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2975 return ch;
adamc@682	2976 }
adamc@682	2977 }
adamc@682	2978
adamc@682	2979 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2980 char *endptr;
adamc@682	2981 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2982
adamc@678	2983 if (s != '\0' && endptr == '\0')
adamc@678	2984 return n;
adamc@678	2985 else
adam@1444	2986 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	2987 }
adamc@678	2988
adamc@311	2989 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2990 char *endptr;
adamc@311	2991 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2992
adamc@293	2993 if (s != '\0' && endptr == '\0')
adamc@293	2994 return n;
adamc@293	2995 else
adam@1444	2996 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2997 }
adamc@293	2998
adamc@821	2999 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	3000 if (s[0] == 0)
adamc@821	3001 return 0;
adamc@821	3002 else if (s[1] != 0)
adam@1444	3003 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	3004 else
adamc@821	3005 return s[0];
adamc@821	3006 }
adamc@821	3007
adamc@311	3008 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	3009 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	3010 return uw_Basis_True;
adamc@296	3011 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	3012 return uw_Basis_False;
adamc@293	3013 else
adam@1444	3014 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3015 }
adamc@436	3016
adam@1352	3017 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	3018 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	3019 struct tm stm = {};
adam@1392	3020 stm.tm_isdst = -1;
adam@1352	3021
adam@1352	3022 if (dot) {
adam@1352	3023 *dot = 0;
adam@1352	3024 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	3025 *dot = '.';
adam@1410	3026 char usec[] = "000000";
adam@1410	3027 int len = strlen(dot+1);
adam@1410	3028 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	3029 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	3030 return r;
adam@1352	3031 }
adam@1352	3032 else {
adam@1352	3033 *dot = '.';
adam@1444	3034 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3035 }
adam@1352	3036 }
adam@1352	3037 else {
adam@1352	3038 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3039 uw_Basis_time r = { mktime(&stm) };
adam@1365	3040 return r;
adam@1352	3041 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3042 uw_Basis_time r = { mktime(&stm) };
adam@1365	3043 return r;
adam@1352	3044 } else
adam@1444	3045 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3046 }
adam@1352	3047 }
adam@1352	3048
adamc@436	3049 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	3050 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	3051 struct tm stm = {};
adam@1392	3052 stm.tm_isdst = -1;
adamc@436	3053
adamc@438	3054 if (dot) {
adamc@438	3055 *dot = 0;
adamc@438	3056 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	3057 *dot = '.';
adam@1365	3058 {
adam@1365	3059 uw_Basis_time r = { mktime(&stm) };
adam@1365	3060 return r;
adam@1365	3061 }
adamc@438	3062 }
adamc@438	3063 else {
adamc@438	3064 *dot = '.';
adam@1444	3065 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3066 }
adamc@438	3067 }
adamc@438	3068 else {
adam@2072	3069 if (strptime(s, ctx->app->time_format, &stm) == end) {
adam@2072	3070 uw_Basis_time r = { mktime(&stm) };
adam@2072	3071 return r;
adam@2072	3072 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3073 uw_Basis_time r = { mktime(&stm) };
adam@1365	3074 return r;
adam@1365	3075 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3076 uw_Basis_time r = { mktime(&stm) };
adam@1365	3077 return r;
adam@1632	3078 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3079 uw_Basis_time r = { mktime(&stm) };
adam@1632	3080 return r;
adam@1365	3081 } else
adam@1444	3082 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3083 }
adamc@436	3084 }
adamc@457	3085
adam@1352	3086 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3087 char *end = strchr(s, 0);
adamc@939	3088 struct tm stm = {};
adam@1392	3089 stm.tm_isdst = -1;
adamc@939	3090
adam@1365	3091 if (strptime(s, fmt, &stm) == end) {
adam@1365	3092 uw_Basis_time r = { mktime(&stm) };
adam@1365	3093 return r;
adam@1365	3094 } else
adam@1444	3095 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3096 }
adamc@939	3097
adamc@742	3098 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3099 char *r = ctx->heap.front;
adamc@742	3100 uw_Basis_blob b = {len, r};
adamc@742	3101
adamc@742	3102 uw_check_heap(ctx, len);
adamc@742	3103
adam@1992	3104 if (s[0] == '\\' && s[1] == 'x') {
adam@1992	3105 s += 2;
adam@1992	3106
adam@1992	3107 while (*s) {
adam@1992	3108 int n;
adam@1992	3109 sscanf(s, "%02x", &n);
adam@1992	3110 *r++ = n;
adam@1992	3111 s += 2;
adam@1992	3112 }
adam@1992	3113 } else {
adam@1992	3114 while (*s) {
adam@1992	3115 if (s[0] == '\\') {
adam@1992	3116 if (s[1] == '\\') {
adam@1992	3117 *r++ = '\\';
adam@1992	3118 s += 2;
adam@1992	3119 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adam@1992	3120 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adam@1992	3121 s += 4;
adam@1992	3122 }
adam@1992	3123 else {
adam@1992	3124 *r++ = '\\';
adam@1992	3125 ++s;
adam@1992	3126 }
adam@1992	3127 } else {
adam@1992	3128 *r++ = s[0];
adamc@742	3129 ++s;
adamc@742	3130 }
adamc@742	3131 }
adamc@742	3132 }
adamc@742	3133
adamc@742	3134 b.size = r - ctx->heap.front;
adamc@742	3135 ctx->heap.front = r;
adam@1992	3136
adamc@742	3137 return b;
adamc@742	3138 }
adamc@742	3139
adam@1402	3140 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3141
adamc@463	3142 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3143 int len = strlen(c);
adamc@854	3144 char *p = ctx->outHeaders.start;
adamc@474	3145
adamc@1134	3146 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3147 char *p2;
adamc@474	3148 p += 13;
adamc@474	3149 p2 = strchr(p, '=');
adamc@474	3150
adamc@474	3151 if (p2) {
adamc@474	3152 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3153
adamc@474	3154 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3155 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3156 return NULL;
adamc@1052	3157 else {
adamc@1052	3158 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3159 memcpy(ret, p2+1, sz);
adamc@1052	3160 ret[sz] = 0;
adamc@1052	3161 return ret;
adamc@1052	3162 }
adamc@474	3163 }
adamc@474	3164 }
adamc@474	3165 }
adamc@463	3166
adamc@1134	3167 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3168 char *p2;
adamc@1051	3169
adamc@854	3170 while (1) {
adamc@1051	3171 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3172 if ((p2 = strchr(p, ';'))) {
adamc@1051	3173 size_t n = p2 - (p + len);
adamc@1051	3174 char *r = uw_malloc(ctx, n);
adamc@1051	3175 memcpy(r, p + 1 + len, n-1);
adamc@1051	3176 r[n-1] = 0;
adamc@1051	3177 return r;
adamc@1051	3178 } else
adamc@1051	3179 return p + 1 + len;
adamc@1134	3180 } else if ((p = strchr(p, ';')))
adamc@854	3181 p += 2;
adamc@463	3182 else
adamc@463	3183 return NULL;
adamc@463	3184 }
adamc@463	3185 }
adamc@792	3186
adamc@792	3187 return NULL;
adamc@457	3188 }
adamc@462	3189
adam@1877	3190 static void set_cookie(uw_context ctx) {
adam@1877	3191 if (ctx->usedSig)
adam@1877	3192 ctx->needsResig = 1;
adam@1877	3193 }
adam@1877	3194
adamc@1050	3195 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	3196 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3197 uw_write_header(ctx, c);
adamc@462	3198 uw_write_header(ctx, "=");
adamc@462	3199 uw_write_header(ctx, v);
adamc@466	3200 uw_write_header(ctx, "; path=");
adamc@466	3201 uw_write_header(ctx, prefix);
adamc@1050	3202 if (expires) {
adamc@1050	3203 char formatted[30];
adam@1392	3204 struct tm tm = {};
adam@1392	3205 tm.tm_isdst = -1;
adamc@1050	3206
adam@1365	3207 gmtime_r(&expires->seconds, &tm);
adamc@1050	3208
adamc@1050	3209 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3210
adamc@1050	3211 uw_write_header(ctx, "; expires=");
adamc@1050	3212 uw_write_header(ctx, formatted);
adamc@1050	3213 }
adamc@1050	3214 if (secure)
adamc@1050	3215 uw_write_header(ctx, "; secure");
adamc@462	3216 uw_write_header(ctx, "\r\n");
adam@1877	3217 set_cookie(ctx);
adamc@462	3218
adamc@462	3219 return uw_unit_v;
adamc@462	3220 }
adamc@667	3221
adamc@1050	3222 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3223 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3224 uw_write_header(ctx, c);
adamc@1050	3225 uw_write_header(ctx, "=; path=");
adamc@1050	3226 uw_write_header(ctx, prefix);
adamc@1052	3227 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3228 set_cookie(ctx);
adamc@1050	3229
adamc@1050	3230 return uw_unit_v;
adamc@1050	3231 }
adamc@1050	3232
adamc@1113	3233 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3234
adamc@682	3235 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3236 unsigned i;
adamc@682	3237 delta *d;
adamc@671	3238
adamc@682	3239 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3240 if (ctx->deltas[i].client == client)
adamc@682	3241 return &ctx->deltas[i];
adamc@671	3242
adamc@682	3243 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3244 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3245 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3246
adamc@682	3247 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3248 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3249 }
adamc@671	3250
adamc@682	3251 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3252 d->client = client;
adam@1369	3253 uw_buffer_reset(&d->msgs);
adamc@682	3254 return d;
adamc@671	3255 }
adamc@671	3256
adamc@668	3257 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3258 if (ctx->client == NULL)
adamc@682	3259 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3260
adamc@682	3261 return new_channel(ctx->client);
adamc@668	3262 }
adamc@668	3263
adamc@668	3264 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3265 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3266 size_t len;
adamc@682	3267 int preLen;
adamc@682	3268 char pre[INTS_MAX + 2];
adamc@668	3269
adamc@682	3270 len = strlen(msg);
adamc@682	3271
adamc@682	3272 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3273
adam@1369	3274 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3275 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3276 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3277
adamc@671	3278 return uw_unit_v;
adamc@668	3279 }
adamc@671	3280
adam@1327	3281 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3282 int i;
adamc@1131	3283 cleanup *cl;
adamc@1131	3284
adamc@1131	3285 if (ctx->client)
adamc@1131	3286 release_client(ctx->client);
adamc@1131	3287
adamc@1131	3288 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3289 cl->func(cl->arg);
adamc@1131	3290
adamc@1131	3291 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3292
adamc@1131	3293 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3294 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3295 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3296
adamc@1131	3297 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3298 if (ctx->transactionals[i].free)
adam@1327	3299 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3300
adam@1941	3301 if (ctx->app && ctx->transaction_started) {
adam@1941	3302 ctx->transaction_started = 0;
adam@1941	3303 return ctx->app->db_rollback(ctx);
adam@1941	3304 } else
adam@1941	3305 return 0;
adamc@1131	3306 }
adamc@1131	3307
adam@1956	3308 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	3309 const char uw_begin_html5[] = "<!DOCTYPE html><html>";
adam@1728	3310
adam@1877	3311 extern int uw_hash_blocksize;
adam@1877	3312
adam@1877	3313 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3314
adam@1877	3315 static char find_sig(char haystack) {
adam@1877	3316 int i;
adam@1877	3317 char *s = strstr(haystack, sig_intro);
adam@1877	3318
adam@1877	3319 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3320 return NULL;
phurst@1981	3321
adam@1877	3322 s += sizeof sig_intro - 1;
adam@1877	3323
adam@1877	3324 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3325 if (!isxdigit((int)s[i]))
adam@1877	3326 return NULL;
adam@1877	3327
adam@1877	3328 if (s[i] != '"')
adam@1877	3329 return NULL;
adam@1877	3330
adam@1877	3331 return s;
adam@1877	3332 }
adam@1877	3333
adam@2033	3334 static pthread_mutex_t message_send_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2033	3335
adam@1938	3336 int uw_commit(uw_context ctx) {
adamc@1104	3337 int i;
adam@1877	3338 char *sig;
adamc@1104	3339
adamc@1131	3340 if (uw_has_error(ctx)) {
adam@1327	3341 uw_rollback(ctx, 0);
adam@1938	3342 return 0;
adamc@1131	3343 }
adamc@1131	3344
adamc@1104	3345 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3346 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3347 if (ctx->transactionals[i].commit) {
adamc@1083	3348 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3349 if (uw_has_error(ctx)) {
adam@1327	3350 uw_rollback(ctx, 0);
adam@1938	3351 return 0;
adamc@1131	3352 }
adamc@1131	3353 }
adamc@771	3354
adam@2033	3355 // Here's an important lock to provide the abstraction that all messages from one transaction are sent as an atomic unit.
adam@2033	3356 if (ctx->used_deltas > 0)
adam@2033	3357 pthread_mutex_lock(&message_send_mutex);
adam@2033	3358
adam@2000	3359 if (ctx->transaction_started) {
adam@2000	3360 int code = ctx->app->db_commit(ctx);
adam@2000	3361
adam@2000	3362 if (code) {
adam@2033	3363 if (ctx->used_deltas > 0)
adam@2033	3364 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3365
adam@2000	3366 if (ctx->client)
adam@2000	3367 release_client(ctx->client);
adam@2000	3368
adam@2000	3369 if (code == -1) {
adam@2000	3370 // This case is for a serialization failure, which is not really an "error."
adam@2000	3371 // The transaction will restart, so we should rollback any transactionals
adam@2000	3372 // that triggered above.
adam@2000	3373
adam@2000	3374 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3375 if (ctx->transactionals[i].rollback != NULL)
adam@2000	3376 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2000	3377
adam@2000	3378 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3379 if (ctx->transactionals[i].free)
adam@2000	3380 ctx->transactionals[i].free(ctx->transactionals[i].data, 1);
adam@2000	3381
grrwlf@2030	3382 return 1;
adam@2000	3383 }
adam@2000	3384
adam@2000	3385 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3386 if (ctx->transactionals[i].free)
adam@2000	3387 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3388
adam@2000	3389 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@2000	3390 return 0;
adam@2000	3391 }
adam@2000	3392 }
adam@2000	3393
adamc@1104	3394 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3395 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3396 if (ctx->transactionals[i].commit) {
adamc@1083	3397 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3398 if (uw_has_error(ctx)) {
adam@2033	3399 if (ctx->used_deltas > 0)
adam@2033	3400 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3401
adam@2033	3402 if (ctx->client)
adam@2033	3403 release_client(ctx->client);
adam@2033	3404
adam@2033	3405 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3406 if (ctx->transactionals[i].rollback != NULL)
adam@2033	3407 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2033	3408
adam@2033	3409 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3410 if (ctx->transactionals[i].free)
adam@2033	3411 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3412
adam@1938	3413 return 0;
adamc@1131	3414 }
adamc@1131	3415 }
adamc@1131	3416
adamc@682	3417 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3418 delta *d = &ctx->deltas[i];
adamc@682	3419 client *c = find_client(d->client);
adamc@682	3420
adam@1551	3421 assert (c != NULL);
adam@1551	3422 assert(c->mode == USED);
adamc@682	3423
adam@1447	3424 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3425 }
adamc@682	3426
adam@2033	3427 if (ctx->used_deltas > 0)
adam@2033	3428 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3429
adamc@682	3430 if (ctx->client)
adamc@685	3431 release_client(ctx->client);
adamc@771	3432
adamc@1104	3433 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3434 if (ctx->transactionals[i].free)
adam@1327	3435 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3436
vshabanoff@1726	3437 uw_check(ctx, 1);
vshabanoff@1726	3438 *ctx->page.front = 0;
adam@1413	3439
adam@1956	3440 if (!ctx->returning_indirectly
adam@1956	3441 && (ctx->app->is_html5
adam@1956	3442 ? !strncmp(ctx->page.start, uw_begin_html5, sizeof uw_begin_html5 - 1)
adam@1956	3443 : !strncmp(ctx->page.start, uw_begin_xhtml, sizeof uw_begin_xhtml - 1))) {
adam@1728	3444 char *s;
adam@1728	3445
adam@1728	3446 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1956	3447 s = ctx->page.start + (ctx->app->is_html5 ? sizeof uw_begin_html5 - 1 : sizeof uw_begin_xhtml - 1);
adam@1728	3448 s = strchr(s, '<');
adam@1728	3449 if (s == NULL) {
adam@1728	3450 // Weird. Document has no tags!
adam@1728	3451
adam@1728	3452 uw_write(ctx, "<head></head><body></body>");
adam@1728	3453 uw_check(ctx, 1);
adam@1728	3454 *ctx->page.front = 0;
adam@1728	3455 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3456 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3457
adam@1729	3458 // Any freeform JavaScript to include?
adam@1729	3459 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3460 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3461 size_t lenP = lenH + 40 + len;
adam@1729	3462 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3463
adam@1729	3464 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3465 start += ctx->page.start - oldPage;
adam@1729	3466 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3467 ctx->page.front += lenP;
adam@1729	3468 memcpy(start, ctx->script_header, lenH);
adam@1729	3469 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3470 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3471 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3472 } else {
adam@1729	3473 size_t lenH = strlen(ctx->script_header);
adam@1729	3474 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3475
adam@1729	3476 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3477 start += ctx->page.start - oldPage;
adam@1729	3478 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3479 ctx->page.front += lenH;
adam@1729	3480 memcpy(start, ctx->script_header, lenH);
adam@1729	3481 }
adam@1728	3482 } else {
adam@1728	3483 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3484
adam@1729	3485 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3486 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3487 size_t lenP = lenH + 53 + len;
adam@1729	3488 char start = s, oldPage = ctx->page.start;
adam@1729	3489
adam@1729	3490 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3491 start += ctx->page.start - oldPage;
adam@1729	3492 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3493 ctx->page.front += lenP;
adam@1729	3494 memcpy(start, "<head>", 6);
adam@1729	3495 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3496 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3497 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3498 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3499 } else {
adam@1729	3500 size_t lenH = strlen(ctx->script_header);
adam@1729	3501 size_t lenP = lenH + 13;
adam@1729	3502 char start = s, oldPage = ctx->page.start;
adam@1729	3503
adam@1729	3504 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3505 start += ctx->page.start - oldPage;
adam@1729	3506 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3507 ctx->page.front += lenP;
adam@1729	3508 memcpy(start, "<head>", 6);
adam@1729	3509 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3510 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3511 }
adamc@916	3512 }
adamc@916	3513 }
adam@1877	3514
adam@1877	3515 if (ctx->needsResig) {
adam@1877	3516 sig = find_sig(ctx->page.start);
adam@1877	3517 if (sig) {
adam@1877	3518 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3519
adam@1877	3520 do {
adam@1877	3521 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3522 sig = find_sig(sig);
adam@1877	3523 } while (sig);
adam@1877	3524 }
adam@1877	3525 }
adam@1938	3526
adam@1938	3527 return 0;
adamc@671	3528 }
adamc@671	3529
adamc@683	3530
adamc@1113	3531 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3532
adam@2001	3533 int uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3534 uw_callback_with_retry free) {
adamc@771	3535 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3536 if (ctx->used_transactionals+1 > uw_transactionals_max)
adam@2001	3537 // Exceeded limit on number of transactionals.
adam@2001	3538 return -1;
adamc@1084	3539 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3540 ++ctx->n_transactionals;
adamc@771	3541 }
adamc@771	3542
adamc@771	3543 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3544 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3545 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3546 ctx->transactionals[ctx->used_transactionals++].free = free;
adam@2001	3547
adam@2001	3548 return 0;
adamc@771	3549 }
adamc@771	3550
adamc@683	3551
adamc@683	3552 // "Garbage collection"
adamc@683	3553
adamc@1121	3554 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3555 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3556
adamc@1121	3557 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3558 int r = setjmp(ctx->jmp_buf);
adamc@683	3559
adamc@1121	3560 if (r == 0)
adamc@1121	3561 uw_do_expunge(ctx, cli, data);
adamc@1121	3562 else
adamc@1121	3563 ctx->app->db_rollback(ctx);
adamc@1121	3564
adamc@1121	3565 uw_post_expunge(ctx, data);
adamc@683	3566
adamc@683	3567 return r;
adamc@683	3568 }
adamc@683	3569
adamc@683	3570 void uw_prune_clients(uw_context ctx) {
adamc@683	3571 client c, next, *prev = NULL;
adamc@683	3572 time_t cutoff;
adamc@683	3573
adamc@1094	3574 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3575
adamc@683	3576 pthread_mutex_lock(&clients_mutex);
adam@1707	3577 pruning_thread = pthread_self();
adam@1707	3578 pruning_thread_initialized = 1;
adamc@683	3579
adamc@683	3580 for (c = clients_used; c; c = next) {
adamc@683	3581 next = c->next;
adamc@683	3582 pthread_mutex_lock(&c->lock);
adamc@685	3583 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3584 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3585 if (prev)
adamc@683	3586 prev->next = next;
adamc@683	3587 else
adamc@683	3588 clients_used = next;
adamc@683	3589 while (fk == UNLIMITED_RETRY) {
adam@1941	3590 uw_reset(ctx);
adamc@1121	3591 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3592 if (fk == UNLIMITED_RETRY)
adamc@684	3593 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3594 }
adamc@684	3595 if (fk == SUCCESS)
adamc@684	3596 free_client(c);
adamc@1121	3597 else
adamc@856	3598 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3599 }
adamc@683	3600 else
adamc@683	3601 prev = c;
adamc@683	3602 pthread_mutex_unlock(&c->lock);
adamc@683	3603 }
adamc@683	3604
adamc@683	3605 pthread_mutex_unlock(&clients_mutex);
adamc@683	3606 }
adamc@687	3607
adamc@687	3608 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3609 int r = setjmp(ctx->jmp_buf);
adamc@687	3610
adamc@687	3611 if (r == 0) {
adam@1936	3612 uw_ensure_transaction(ctx);
adamc@1094	3613 ctx->app->initializer(ctx);
adamc@1094	3614 if (ctx->app->db_commit(ctx))
adamc@687	3615 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3616 }
adamc@687	3617
adamc@687	3618 return r;
adamc@687	3619 }
adamc@717	3620
adamc@1065	3621 static int url_bad(uw_Basis_string s) {
adamc@1065	3622 for (; *s; ++s)
adamc@1153	3623 if (!isgraph((int)*s))
adamc@1065	3624 return 1;
adamc@1065	3625
adamc@1065	3626 return 0;
adamc@1065	3627 }
adamc@1065	3628
adamc@717	3629 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3630 if (url_bad(s))
adamc@1065	3631 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3632 if (ctx->app->check_url(s))
adamc@770	3633 return s;
adamc@770	3634 else
adamc@770	3635 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3636 }
adamc@734	3637
adamc@770	3638 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3639 if (url_bad(s))
adamc@1065	3640 return NULL;
adamc@1094	3641 if (ctx->app->check_url(s))
adamc@770	3642 return s;
adamc@770	3643 else
adamc@770	3644 return NULL;
adamc@770	3645 }
adamc@770	3646
adam@1465	3647 static int mime_format(const char *s) {
adamc@770	3648 for (; *s; ++s)
grrwlf@2024	3649 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.' && *s != '+')
adamc@770	3650 return 0;
adamc@770	3651
adamc@770	3652 return 1;
adamc@770	3653 }
adamc@770	3654
adamc@741	3655 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3656 if (!mime_format(s))
adamc@770	3657 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3658
adamc@1094	3659 if (ctx->app->check_mime(s))
adamc@770	3660 return s;
adamc@770	3661 else
adamc@770	3662 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3663 }
adamc@770	3664
adamc@770	3665 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3666 if (!mime_format(s))
adamc@770	3667 return NULL;
adamc@770	3668
adamc@1094	3669 if (ctx->app->check_mime(s))
adamc@770	3670 return s;
adamc@770	3671 else
adamc@770	3672 return NULL;
adamc@741	3673 }
adamc@741	3674
adam@1465	3675 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3676 if (!mime_format(s))
adam@1465	3677 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3678
adam@1465	3679 if (ctx->app->check_requestHeader(s))
adam@1465	3680 return s;
adam@1465	3681 else
adam@1465	3682 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3683 }
adam@1465	3684
adam@1465	3685 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3686 if (!mime_format(s))
adam@1465	3687 return NULL;
adam@1465	3688
adam@1465	3689 if (ctx->app->check_requestHeader(s))
adam@1465	3690 return s;
adam@1465	3691 else
adam@1465	3692 return NULL;
adam@1465	3693 }
adam@1465	3694
adam@1465	3695 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3696 if (!mime_format(s))
adam@1465	3697 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3698
adam@1465	3699 if (ctx->app->check_responseHeader(s))
adam@1465	3700 return s;
adam@1465	3701 else
adam@1465	3702 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3703 }
adam@1465	3704
adam@1799	3705 static int envVar_format(const char *s) {
adam@1799	3706 for (; *s; ++s)
adam@1799	3707 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3708 return 0;
adam@1799	3709
adam@1799	3710 return 1;
adam@1799	3711 }
adam@1799	3712
adam@1465	3713 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3714 if (!envVar_format(s))
adam@1465	3715 return NULL;
adam@1465	3716
adam@1465	3717 if (ctx->app->check_responseHeader(s))
adam@1465	3718 return s;
adam@1465	3719 else
adam@1465	3720 return NULL;
adam@1465	3721 }
adam@1465	3722
adam@1799	3723 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3724 if (!envVar_format(s))
adam@1799	3725 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3726
adam@1799	3727 if (ctx->app->check_envVar(s))
adam@1799	3728 return s;
adam@1799	3729 else
adam@1799	3730 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3731 }
adam@1799	3732
adam@1799	3733 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3734 if (!mime_format(s))
adam@1799	3735 return NULL;
adam@1799	3736
adam@1799	3737 if (ctx->app->check_envVar(s))
adam@1799	3738 return s;
adam@1799	3739 else
adam@1799	3740 return NULL;
adam@1799	3741 }
adam@1799	3742
adam@1465	3743 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3744 return uw_Basis_requestHeader(ctx, name);
adam@1465	3745 }
adam@1465	3746
adam@1465	3747 static int mime_value_format(const char *s) {
adam@1465	3748 for (; *s; ++s)
adam@1465	3749 if (s == '\r' \|\| s == '\n')
adam@1465	3750 return 0;
adam@1465	3751
adam@1465	3752 return 1;
adam@1465	3753 }
adam@1465	3754
adam@1465	3755 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3756 if (!mime_value_format(value))
adam@1465	3757 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3758
adam@1465	3759 uw_write_header(ctx, name);
adam@1465	3760 uw_write_header(ctx, ": ");
adam@1465	3761 uw_write_header(ctx, value);
adam@1465	3762 uw_write_header(ctx, "\r\n");
adam@1465	3763
adam@1465	3764 return uw_unit_v;
adam@1465	3765 }
adam@1465	3766
adam@1799	3767 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1993	3768 if (ctx->get_env)
adam@1993	3769 return ctx->get_env(ctx->get_env_data, name);
adam@1993	3770 else
adam@1994	3771 return getenv(name);
adam@1799	3772 }
adam@1799	3773
adamc@734	3774 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3775 return s ? s : "";
adamc@734	3776 }
adamc@734	3777
adamc@734	3778 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3779 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3780 int i;
phurst@1981	3781
adamc@734	3782 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3783 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3784
adamc@734	3785 return r;
adamc@734	3786 }
adamc@734	3787
adam@1512	3788 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3789 * optimizations that would enable timing attacks. See:
adam@1512	3790 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3791 */
adam@1512	3792 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3793 int i, x = 0, len1 = strlen(s1);
adam@1512	3794
adam@1512	3795 if (len1 != strlen(s2)) return 0;
adam@1512	3796
adam@1512	3797 for (i = 0; i < len1; ++i) {
adam@1512	3798 __asm__ __volatile__ ("");
adam@1512	3799 x \|= s1[i] ^ s2[i];
adam@1512	3800 }
adam@1512	3801
adam@1512	3802 return x == 0;
adam@1512	3803 }
adam@1512	3804
adamc@734	3805 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3806 ctx->usedSig = 1;
adamc@1094	3807 return ctx->app->cookie_sig(ctx);
adamc@734	3808 }
adamc@737	3809
adamc@737	3810 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3811 return f.name;
adamc@737	3812 }
adamc@737	3813
adamc@740	3814 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3815 return f.type;
adamc@740	3816 }
adamc@740	3817
adamc@745	3818 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3819 return b.size;
adamc@745	3820 }
adamc@745	3821
adamc@1119	3822 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3823 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3824
adamc@1119	3825 return b;
adamc@1119	3826 }
adamc@1119	3827
adamc@737	3828 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3829 return f.data;
adamc@737	3830 }
adamc@741	3831
adam@1347	3832 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3833 return pb.type;
adam@1347	3834 }
adam@1347	3835
adam@1347	3836 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3837 return pb.data;
adam@1347	3838 }
adam@1347	3839
adam@1471	3840 static char *old_headers(uw_context ctx) {
adam@1471	3841 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3842 return NULL;
adam@1471	3843 else {
adam@1471	3844 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3845
adam@1471	3846 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3847 return NULL;
adam@1471	3848 else {
adam@1471	3849 s = strchr(s+15, '\n');
adam@1471	3850 if (s == NULL)
adam@1471	3851 return NULL;
adam@1471	3852 else
adam@1471	3853 return uw_strdup(ctx, s+1);
adam@1471	3854 }
adam@1471	3855 }
adam@1471	3856 }
adam@1471	3857
adamc@741	3858 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3859 cleanup *cl;
adamc@741	3860 int len;
adam@1471	3861 char *oldh;
adamc@741	3862
adam@1451	3863 if (!ctx->allowed_to_return_indirectly)
adam@1451	3864 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3865
adamc@1065	3866 ctx->returning_indirectly = 1;
adam@1471	3867 oldh = old_headers(ctx);
adam@1369	3868 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3869 uw_buffer_reset(&ctx->page);
adamc@741	3870
adamc@856	3871 uw_write_header(ctx, on_success);
adamc@856	3872 uw_write_header(ctx, "Content-Type: ");
adamc@741	3873 uw_write_header(ctx, mimeType);
adam@1934	3874 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369	3875 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3876 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3877 ctx->outHeaders.front += len;
adamc@1066	3878 uw_write_header(ctx, "\r\n");
adam@1471	3879 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3880
adam@1369	3881 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3882
adamc@741	3883 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3884 cl->func(cl->arg);
adamc@741	3885
adamc@741	3886 ctx->cleanup_front = ctx->cleanup;
adamc@741	3887
adamc@1065	3888 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3889 }
adamc@1065	3890
adam@2046	3891 void uw_replace_page(uw_context ctx, const char *data, size_t size) {
adam@2046	3892 uw_buffer_reset(&ctx->page);
adam@2046	3893 ctx_uw_buffer_append(ctx, "page", &ctx->page, data, size);
adam@2046	3894 }
adam@2046	3895
adam@1932	3896 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932	3897 cleanup *cl;
adam@1932	3898 int len;
adam@1932	3899 char *oldh;
adam@1932	3900
adam@1932	3901 if (!ctx->allowed_to_return_indirectly)
adam@1932	3902 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932	3903
adam@1932	3904 ctx->returning_indirectly = 1;
adam@1932	3905 oldh = old_headers(ctx);
adam@1932	3906 uw_buffer_reset(&ctx->outHeaders);
adam@1932	3907
adam@1932	3908 uw_write_header(ctx, on_success);
adam@1932	3909 uw_write_header(ctx, "Content-Type: ");
adam@1932	3910 uw_write_header(ctx, mimeType);
adam@1934	3911 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932	3912 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932	3913 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932	3914 ctx->outHeaders.front += len;
adam@1932	3915 uw_write_header(ctx, "\r\n");
adam@1932	3916 if (oldh) uw_write_header(ctx, oldh);
adam@1932	3917
adam@1932	3918 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932	3919 cl->func(cl->arg);
adam@1932	3920
adam@1932	3921 ctx->cleanup_front = ctx->cleanup;
adam@1932	3922
adam@1932	3923 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932	3924 }
adam@1932	3925
adamc@1065	3926 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3927 cleanup *cl;
adamc@1066	3928 char *s;
adam@1471	3929 char *oldh;
adamc@1065	3930
adam@1451	3931 if (!ctx->allowed_to_return_indirectly)
adam@1451	3932 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3933
adamc@1065	3934 ctx->returning_indirectly = 1;
adam@1471	3935 oldh = old_headers(ctx);
adam@1369	3936 uw_buffer_reset(&ctx->page);
adam@1369	3937 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3938 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3939 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3940 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3941
adam@1409	3942 if (on_success[0])
adam@1409	3943 uw_write_header(ctx, on_redirect);
adam@1409	3944 else
adam@1409	3945 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3946 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3947 if (s) {
adamc@1066	3948 char *s2;
adam@1409	3949 if (s[0] == '\n') ++s;
adam@1409	3950 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3951 *s2 = 0;
adamc@1066	3952 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3953 uw_write_header(ctx, s);
adamc@1066	3954 uw_write_header(ctx, "\n");
adamc@1066	3955 }
adamc@1066	3956 }
adamc@1066	3957 }
adamc@1066	3958
adamc@1065	3959 uw_write_header(ctx, "Location: ");
adamc@1065	3960 uw_write_header(ctx, url);
adamc@1065	3961 uw_write_header(ctx, "\r\n\r\n");
adam@1471	3962 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	3963
adamc@1065	3964 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3965 cl->func(cl->arg);
adamc@1065	3966
adamc@1065	3967 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3968
adamc@1065	3969 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3970 }
adamc@874	3971
adamc@874	3972 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	3973 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	3974
adamc@874	3975 for (; *s; ++s) {
adamc@874	3976 if (s[0] == '\'') {
adamc@874	3977 *r++ = '\'';
adamc@874	3978 for (++s; *s; ++s) {
adamc@874	3979 if (s[0] == '\'') {
adamc@874	3980 *r++ = '\'';
adamc@874	3981 break;
adamc@874	3982 } else if (s[0] == '\\') {
adam@1467	3983 *r++ = '\\';
adam@1467	3984 *r++ = s[1];
adam@1467	3985 ++s;
adamc@874	3986 } else
adamc@874	3987 *r++ = s[0];
adamc@874	3988 }
adamc@874	3989 if (*s == 0) break;
adam@1467	3990 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	3991 s += 3;
adamc@874	3992 else
adamc@874	3993 *r++ = s[0];
adamc@874	3994 }
adamc@874	3995
adam@1467	3996 *r = 0;
adam@1467	3997 return ret;
adamc@874	3998 }
adamc@874	3999
adamc@922	4000 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	4001 va_list ap;
adamc@922	4002 size_t len = 1;
adamc@922	4003 char s, r, *s2;
phurst@1981	4004
adamc@922	4005 va_start(ap, ctx);
adamc@922	4006 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4007 len += strlen(s);
adamc@922	4008 va_end(ap);
adamc@922	4009
adamc@922	4010 r = uw_malloc(ctx, len);
adamc@922	4011 va_start(ap, ctx);
adamc@922	4012 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4013 while (*s)
adamc@922	4014 s2++ = s++;
adamc@922	4015 va_end(ap);
adamc@922	4016 *s2 = 0;
adamc@922	4017
adamc@922	4018 return r;
adamc@922	4019 }
adamc@1006	4020
adam@1365	4021 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	4022
adamc@1006	4023 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	4024 uw_Basis_time r = { time(NULL) };
adam@1365	4025 return r;
adamc@1006	4026 }
adamc@1061	4027
adam@1369	4028 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	4029 tm.seconds += n;
adam@1365	4030 return tm;
adamc@1138	4031 }
adamc@1138	4032
adam@1514	4033 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	4034 return difftime(tm2.seconds, tm1.seconds);
adam@1514	4035 }
adam@1514	4036
adam@1685	4037 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	4038 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	4039 }
adam@1685	4040
adam@1685	4041 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	4042 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	4043 }
adam@1685	4044
adam@1514	4045 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	4046 return tm.seconds;
adam@1514	4047 }
adam@1514	4048
phurst@1971	4049 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	4050 struct tm tm = { .tm_year = year - 1900, .tm_mon = month, .tm_mday = day,
adam@2015	4051 .tm_hour = hour, .tm_min = minute, .tm_sec = second,
adam@2015	4052 .tm_isdst = -1 };
phurst@1984	4053 uw_Basis_time r = { timelocal(&tm) };
phurst@1971	4054 return r;
phurst@1971	4055 }
phurst@1971	4056
phurst@1971	4057 uw_Basis_int uw_Basis_datetimeYear(uw_context ctx, uw_Basis_time time) {
phurst@1971	4058 struct tm tm;
phurst@1982	4059 localtime_r(&time.seconds, &tm);
phurst@1971	4060 return tm.tm_year + 1900;
phurst@1971	4061 }
phurst@1971	4062
phurst@1971	4063 uw_Basis_int uw_Basis_datetimeMonth(uw_context ctx, uw_Basis_time time) {
phurst@1971	4064 struct tm tm;
phurst@1982	4065 localtime_r(&time.seconds, &tm);
phurst@1971	4066 return tm.tm_mon;
phurst@1971	4067 }
phurst@1971	4068
phurst@1971	4069 uw_Basis_int uw_Basis_datetimeDay(uw_context ctx, uw_Basis_time time) {
phurst@1971	4070 struct tm tm;
phurst@1982	4071 localtime_r(&time.seconds, &tm);
phurst@1971	4072 return tm.tm_mday;
phurst@1971	4073 }
phurst@1971	4074
phurst@1971	4075 uw_Basis_int uw_Basis_datetimeHour(uw_context ctx, uw_Basis_time time) {
phurst@1971	4076 struct tm tm;
phurst@1982	4077 localtime_r(&time.seconds, &tm);
phurst@1971	4078 return tm.tm_hour;
phurst@1971	4079 }
phurst@1971	4080
phurst@1971	4081 uw_Basis_int uw_Basis_datetimeMinute(uw_context ctx, uw_Basis_time time) {
phurst@1971	4082 struct tm tm;
phurst@1982	4083 localtime_r(&time.seconds, &tm);
phurst@1971	4084 return tm.tm_min;
phurst@1971	4085 }
phurst@1971	4086
phurst@1971	4087 uw_Basis_int uw_Basis_datetimeSecond(uw_context ctx, uw_Basis_time time) {
phurst@1971	4088 struct tm tm;
phurst@1982	4089 localtime_r(&time.seconds, &tm);
phurst@1971	4090 return tm.tm_sec;
phurst@1971	4091 }
phurst@1971	4092
phurst@1973	4093 uw_Basis_int uw_Basis_datetimeDayOfWeek(uw_context ctx, uw_Basis_time time) {
phurst@1973	4094 struct tm tm;
phurst@1982	4095 localtime_r(&time.seconds, &tm);
phurst@1973	4096 return tm.tm_wday;
phurst@1973	4097 }
phurst@1971	4098
phurst@1971	4099
adamc@1061	4100 void uw_get_global(uw_context ctx, char name) {
adamc@1061	4101 int i;
adamc@1061	4102
adamc@1061	4103 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4104 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	4105 return ctx->globals[i].data;
adamc@1061	4106
adamc@1061	4107 return NULL;
adamc@1061	4108 }
adamc@1061	4109
adamc@1113	4110 size_t uw_globals_max = SIZE_MAX;
adamc@1113	4111
adamc@1061	4112 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	4113 int i;
adamc@1061	4114
adamc@1061	4115 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4116 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	4117 if (ctx->globals[i].free)
adamc@1061	4118 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	4119 ctx->globals[i].data = data;
adamc@1061	4120 ctx->globals[i].free = free;
adamc@1061	4121 return;
adamc@1061	4122 }
adamc@1089	4123
adamc@1113	4124 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	4125 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	4126
adamc@1061	4127 ++ctx->n_globals;
adamc@1061	4128 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	4129 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	4130 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	4131 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	4132 }
adamc@1061	4133
adamc@1061	4134 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	4135 return !!isalnum((int)c);
adamc@1061	4136 }
adamc@1061	4137
adamc@1061	4138 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	4139 return !!isalpha((int)c);
adamc@1061	4140 }
adamc@1061	4141
adamc@1061	4142 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	4143 return !!isblank((int)c);
adamc@1061	4144 }
adamc@1061	4145
adamc@1061	4146 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	4147 return !!iscntrl((int)c);
adamc@1061	4148 }
adamc@1061	4149
adamc@1061	4150 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4151 return !!isdigit((int)c);
adamc@1061	4152 }
adamc@1061	4153
adamc@1061	4154 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	4155 return !!isgraph((int)c);
adamc@1061	4156 }
adamc@1061	4157
adamc@1061	4158 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4159 return !!islower((int)c);
adamc@1061	4160 }
adamc@1061	4161
adamc@1061	4162 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	4163 return !!isprint((int)c);
adamc@1061	4164 }
adamc@1061	4165
adamc@1061	4166 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	4167 return !!ispunct((int)c);
adamc@1061	4168 }
adamc@1061	4169
adamc@1061	4170 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	4171 return !!isspace((int)c);
adamc@1061	4172 }
adamc@1063	4173
adamc@1061	4174 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4175 return !!isupper((int)c);
adamc@1061	4176 }
adamc@1061	4177
adamc@1061	4178 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4179 return !!isxdigit((int)c);
adamc@1061	4180 }
adamc@1061	4181
adamc@1061	4182 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4183 return tolower((int)c);
adamc@1061	4184 }
adamc@1061	4185
adamc@1061	4186 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4187 return toupper((int)c);
adamc@1061	4188 }
adamc@1066	4189
adamc@1128	4190 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	4191 return (unsigned char)c;
adamc@1128	4192 }
adamc@1128	4193
adamc@1128	4194 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	4195 return n;
adamc@1128	4196 }
adamc@1128	4197
adamc@1066	4198 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	4199 return ctx->current_url;
adamc@1066	4200 }
adamc@1066	4201
adamc@1066	4202 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	4203 ctx->current_url = s;
adamc@1066	4204 }
adamc@1114	4205
adamc@1114	4206 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	4207 ctx->deadline = n;
adamc@1114	4208 }
adamc@1114	4209
adamc@1114	4210 void uw_check_deadline(uw_context ctx) {
adamc@1114	4211 if (uw_time > ctx->deadline)
adamc@1114	4212 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	4213 }
adamc@1115	4214
adamc@1115	4215 size_t uw_database_max = SIZE_MAX;
adamc@1120	4216
adam@1389	4217 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@2143	4218 if (ctx->loggers->log_debug)
adam@2143	4219 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@2143	4220 else
adam@2143	4221 fprintf(stderr, "%s\n", s);
adam@1389	4222 return 0;
adam@1389	4223 }
adam@1389	4224
adamc@1120	4225 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
grrwlf@1997	4226 if (ctx->loggers->log_debug)
grrwlf@1997	4227 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@1334	4228 else
adam@1334	4229 fprintf(stderr, "%s\n", s);
adamc@1120	4230 return uw_unit_v;
adamc@1120	4231 }
adamc@1250	4232
adamc@1250	4233 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@2104	4234 int r = my_rand();
adam@2104	4235
adam@2104	4236 if (r >= 0)
adam@2104	4237 return r;
adam@1486	4238 else
adam@1486	4239 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	4240 }
adam@1347	4241
adam@1347	4242 void uw_noPostBody(uw_context ctx) {
adam@1347	4243 ctx->hasPostBody = 0;
adam@1347	4244 }
adam@1347	4245
adam@1347	4246 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	4247 ctx->hasPostBody = 1;
adam@1347	4248 ctx->postBody = pb;
adam@1347	4249 }
adam@1347	4250
adam@1347	4251 int uw_hasPostBody(uw_context ctx) {
adam@1347	4252 return ctx->hasPostBody;
adam@1347	4253 }
adam@1347	4254
adam@1386	4255 void uw_isPost(uw_context ctx) {
adam@1386	4256 ctx->isPost = 1;
adam@1386	4257 }
adam@1386	4258
adam@1386	4259 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4260 return ctx->isPost;
adam@1386	4261 }
adam@1386	4262
adam@1485	4263 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4264 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4265 }
adam@1485	4266
adam@1370	4267 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4268 ctx->queryString = s;
adam@1370	4269 }
adam@1370	4270
adam@1370	4271 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4272 return ctx->queryString;
adam@1370	4273 }
adam@1370	4274
adam@1347	4275 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4276 if (ctx->hasPostBody)
adam@1347	4277 return ctx->postBody;
adam@1347	4278 else
adam@1347	4279 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4280 }
adam@1349	4281
adam@1349	4282 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4283 int r = setjmp(ctx->jmp_buf);
adam@1349	4284
adam@1349	4285 if (r == 0) {
adam@1936	4286 uw_ensure_transaction(ctx);
adam@1418	4287
adam@1349	4288 callback(ctx);
adam@1349	4289 }
adam@1349	4290
adam@1349	4291 return r;
adam@1349	4292 }
adam@1360	4293
adam@1360	4294 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4295 char buf[14];
adam@1397	4296 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4297 }
adam@1365	4298
adam@1365	4299 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4300 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	4301 }
adam@1365	4302
adam@1365	4303 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@2034	4304 return !!(t1.seconds < t2.seconds \|\| (t1.seconds == t2.seconds && t1.microseconds < t2.microseconds));
adam@1365	4305 }
adam@1365	4306
adam@1365	4307 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4308 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4309 }
adam@1365	4310
adam@1372	4311 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4312 struct tm stm = {};
adam@1375	4313 char *end = strchr(s, 0);
adam@1449	4314 stm.tm_isdst = -1;
adam@1375	4315
adam@1632	4316 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4317 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4318
kkallio@1448	4319 r->seconds = timegm(&stm);
adam@1373	4320 r->microseconds = 0;
adam@1373	4321
adam@1373	4322 return r;
adam@1374	4323 }
adam@1374	4324 else
adam@1373	4325 return NULL;
adam@1372	4326 }
adam@1407	4327
adam@1407	4328 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4329 int r = setjmp(ctx->jmp_buf);
adam@1407	4330
adam@1407	4331 if (ctx->app->on_error) {
adam@1407	4332 if (r == 0) {
adam@1936	4333 uw_ensure_transaction(ctx);
adam@1407	4334
adam@1409	4335 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4336 if (on_success[0])
adam@1409	4337 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4338 else
adam@1409	4339 uw_write_header(ctx, "Status: ");
adam@1409	4340 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919	4341 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1956	4342 uw_write(ctx, ctx->app->is_html5 ? uw_begin_html5 : uw_begin_xhtml);
adam@1407	4343 ctx->app->on_error(ctx, msg);
adam@1407	4344 uw_write(ctx, "</html>");
adam@1407	4345 }
adam@1407	4346
adam@1407	4347 return r;
adam@1407	4348 } else
adam@1407	4349 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4350 }
adam@1451	4351
adam@1451	4352 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4353 ctx->allowed_to_return_indirectly = 1;
adam@1451	4354 }
adam@1483	4355
adam@1556	4356 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4357 int len;
adam@1703	4358 char *r;
adam@1703	4359
adam@1703	4360 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4361 r = ctx->heap.front;
adam@1703	4362 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4363 ctx->heap.front += len+1;
adam@1703	4364 return r;
adam@1556	4365 }
adam@1571	4366
adam@1571	4367 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4368 return n;
adam@1571	4369 }
adam@1571	4370
adam@1571	4371 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4372 return ceil(n);
adam@1571	4373 }
adam@1571	4374
adam@1571	4375 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4376 return trunc(n);
adam@1571	4377 }
adam@1571	4378
adam@1571	4379 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4380 return round(n);
adam@1571	4381 }
adam@1755	4382
adam@1755	4383 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755	4384 char *p;
adam@1755	4385
adam@1755	4386 for (p = s; *p; ++p) {
adam@1755	4387 char c = *p;
adam@1801	4388 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755	4389 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4390 }
adam@1755	4391
adam@1755	4392 return s;
adam@1755	4393 }
adam@1755	4394
adam@1755	4395 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4396 char *p;
adam@1755	4397
adam@1755	4398 for (p = s; *p; ++p) {
adam@1755	4399 char c = *p;
adam@1801	4400 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4401 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4402 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4403 }
adam@1755	4404
adam@1755	4405 return s;
adam@1755	4406 }
adam@1755	4407
adam@1755	4408 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4409 char *p;
adam@1755	4410
adam@1755	4411 if (!*s)
adam@1755	4412 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4413
adam@1801	4414 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4415 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4416
adam@1755	4417 for (p = s; *p; ++p) {
adam@1755	4418 char c = *p;
adam@1801	4419 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4420 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4421 }
adam@1755	4422
adam@1755	4423 return s;
adam@1755	4424 }
adam@1787	4425
adam@1787	4426 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4427 return f.name;
adam@1787	4428 }
adam@1787	4429
adam@1787	4430 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4431 return f.value;
adam@1787	4432 }
adam@1787	4433
adam@1787	4434 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4435 return f.remaining;
adam@1787	4436 }
adam@1787	4437
adam@1787	4438 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4439 char *unurl;
adam@1787	4440 uw_Basis_postField *f;
adam@1787	4441
adam@1788	4442 if (!ctx->hasPostBody)
adam@1788	4443 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4444
adam@1788	4445 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4446 return NULL;
adam@1787	4447
adam@1787	4448 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4449 unurl = s;
adam@1787	4450 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4451 s = strchr(s, 0);
adam@1788	4452 if (!s)
adam@1788	4453 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4454 ++s;
adam@1788	4455 unurl = s;
adam@1788	4456 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4457 s = strchr(s, 0);
adam@1788	4458 if (!s)
adam@1788	4459 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4460 f->remaining = s+1;
adam@1787	4461
adam@1787	4462 return f;
adam@1787	4463 }
adam@2008	4464
adam@2008	4465 uw_Basis_string uw_Basis_blessData(uw_context ctx, uw_Basis_string s) {
adam@2008	4466 char *p = s;
adam@2008	4467
adam@2008	4468 for (; *p; ++p)
adam@2008	4469 if (!isalnum(p) && p != '-' && *p != '_')
adam@2008	4470 uw_error(ctx, FATAL, "Illegal HTML5 data-* attribute: %s", s);
adam@2008	4471
adam@2008	4472 return s;
adam@2008	4473 }
adam@2073	4474
adam@2073	4475 int uw_remoteSock(uw_context ctx) {
adam@2073	4476 return ctx->remoteSock;
adam@2073	4477 }
adam@2073	4478
adam@2073	4479 void uw_set_remoteSock(uw_context ctx, int sock) {
adam@2073	4480 ctx->remoteSock = sock;
adam@2073	4481 }

Mercurial > urweb

annotate src/c/urweb.c @ 2166:8a01e8f21de9