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

annotate src/c/urweb.c @ 2178:c76a9712334c

Database-server reconnection for MySQL

author	Adam Chlipala <adam@chlipala.net>
date	Sat, 17 Oct 2015 11:31:22 -0400
parents	00cf8214c2e3
children	d87d72b6e299 1e3ba868f8bf

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@2176	800 static void uw_try_reconnecting(uw_context ctx) {
adam@2176	801 // Hm, error starting transaction.
adam@2176	802 // Maybe the database server died but has since come back up.
adam@2176	803 // Let's try starting from scratch.
adam@2176	804 if (ctx->db) {
adam@2176	805 ctx->app->db_close(ctx);
adam@2176	806 ctx->db = NULL;
adam@2176	807 }
adam@2176	808 ctx->app->db_init(ctx);
adam@2176	809
adam@2176	810 if (!ctx->db)
adam@2176	811 uw_error(ctx, FATAL, "Error reopening database connection");
adam@2176	812 }
adam@2176	813
adam@2177	814 void uw_try_reconnecting_and_restarting(uw_context ctx) {
adam@2177	815 uw_try_reconnecting(ctx);
adam@2178	816 uw_error(ctx, BOUNDED_RETRY, "Restarting transaction after fixing database connection");
adam@2176	817 }
adam@2176	818
adam@1931	819 void uw_ensure_transaction(uw_context ctx) {
adam@2056	820 if (!ctx->transaction_started && !ctx->at_most_one_query) {
adam@2176	821 if (!ctx->db \|\| ctx->app->db_begin(ctx, ctx->could_write_db)) {
adam@2176	822 uw_try_reconnecting(ctx);
adam@2176	823
adam@2176	824 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adam@2176	825 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adam@2176	826 }
adam@2176	827
adam@1931	828 ctx->transaction_started = 1;
adam@2178	829 } else if (ctx->at_most_one_query && !ctx->db)
adam@2178	830 uw_try_reconnecting(ctx);
adamc@671	831 }
adamc@671	832
adamc@772	833 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	834 if (ctx->client == NULL)
adamc@682	835 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	836
adamc@682	837 return ctx->client->id;
adamc@682	838 }
adamc@682	839
adamc@425	840 void uw_pop_cleanup(uw_context ctx) {
adamc@425	841 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	842 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	843
adamc@425	844 --ctx->cleanup_front;
adamc@425	845 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	846 }
adamc@425	847
adamc@311	848 char *uw_error_message(uw_context ctx) {
adamc@167	849 return ctx->error_message;
adamc@167	850 }
adamc@167	851
adamc@1115	852 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	853 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	854 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	855 }
adamc@1115	856
adamc@759	857 static input *INP(uw_context ctx) {
adamc@759	858 if (ctx->cur_container == NULL)
adamc@759	859 return ctx->inputs;
adamc@759	860 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	861 return ctx->cur_container->data.subform.fields;
adamc@759	862 else if (ctx->cur_container->kind == ENTRY)
adamc@759	863 return ctx->cur_container->data.entry.fields;
adamc@759	864 else
adamc@760	865 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	866 }
adamc@759	867
adamc@760	868 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	869 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	870 *ptr += new_start - old_start;
adamc@760	871 }
adamc@760	872
adamc@760	873 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	874 switch (x->kind) {
adamc@759	875 case SUBFORM:
adamc@760	876 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	877 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	878 break;
adamc@759	879 case SUBFORMS:
adamc@760	880 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	881 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	882 break;
adamc@759	883 case ENTRY:
adamc@760	884 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	885 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	886 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	887 break;
adamc@1134	888 default:
adamc@1134	889 break;
phurst@1981	890 }
adamc@759	891 }
adamc@759	892
adamc@1113	893 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	894
adamc@759	895 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	896 size_t i;
adamc@759	897 input *r;
adamc@759	898
adamc@759	899 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	900 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	901 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	902
adamc@759	903 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	904
adamc@760	905 if (ctx->subinputs != new_subinputs) {
adamc@760	906 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	907 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	908 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	909 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	910
adamc@760	911 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	912
adamc@760	913 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	914 ctx->subinputs = new_subinputs;
adamc@760	915 }
adamc@759	916 }
adamc@759	917
adamc@759	918 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	919
adamc@759	920 for (i = 0; i < len; ++i)
adam@1474	921 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	922
adamc@759	923 return r;
adamc@759	924 }
adamc@756	925
adamc@801	926 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	927 //printf("Input name %s\n", name);
adamc@1038	928
adamc@756	929 if (!strcasecmp(name, ".b")) {
adamc@1094	930 int n = ctx->app->input_num(value);
adamc@756	931 input *inps;
adamc@756	932
adamc@801	933 if (n < 0) {
adam@1444	934 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	935 return -1;
adamc@801	936 }
adamc@801	937
adamc@1094	938 if (n >= ctx->app->inputs_len) {
adam@1444	939 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	940 return -1;
adamc@801	941 }
adamc@756	942
adamc@1094	943 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	944
adamc@759	945 INP(ctx)[n].kind = SUBFORM;
adamc@759	946 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	947 INP(ctx)[n].data.subform.fields = inps;
adamc@759	948 ctx->cur_container = &INP(ctx)[n];
adamc@756	949 } else if (!strcasecmp(name, ".e")) {
adamc@756	950 input *tmp;
adamc@756	951
adamc@801	952 if (ctx->cur_container == NULL) {
adamc@801	953 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	954 return -1;
adamc@801	955 }
adamc@756	956
adamc@759	957 tmp = ctx->cur_container;
adamc@759	958 switch (tmp->kind) {
adamc@759	959 case SUBFORM:
adamc@759	960 ctx->cur_container = tmp->data.subform.parent;
adamc@759	961 tmp->data.subform.parent = NULL;
adamc@759	962 break;
adamc@759	963 case SUBFORMS:
adamc@759	964 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	965 tmp->data.subforms.parent = NULL;
adamc@759	966 break;
adamc@759	967 case ENTRY:
adamc@759	968 ctx->cur_container = tmp->data.entry.parent;
adamc@759	969 break;
adamc@759	970 default:
adamc@801	971 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	972 return -1;
adamc@759	973 }
adamc@759	974 } else if (!strcasecmp(name, ".s")) {
adamc@1094	975 int n = ctx->app->input_num(value);
adamc@759	976
adamc@801	977 if (n < 0) {
adam@1444	978 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	979 return -1;
adamc@801	980 }
adamc@801	981
adamc@1094	982 if (n >= ctx->app->inputs_len) {
adam@1444	983 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	984 return -1;
adamc@801	985 }
adamc@759	986
adamc@759	987 INP(ctx)[n].kind = SUBFORMS;
adamc@759	988 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	989 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	990 ctx->cur_container = &INP(ctx)[n];
adamc@759	991 } else if (!strcasecmp(name, ".i")) {
adamc@759	992 input *inps;
adamc@759	993
adamc@801	994 if (!ctx->cur_container) {
adamc@801	995 uw_set_error(ctx, "New entry without container");
adamc@801	996 return -1;
adamc@801	997 }
adamc@801	998
adamc@801	999 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	1000 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	1001 return -1;
adamc@801	1002 }
adamc@759	1003
adamc@1094	1004 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	1005
adamc@759	1006 inps->kind = ENTRY;
adamc@759	1007 inps->data.entry.parent = ctx->cur_container;
adamc@759	1008 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	1009 ctx->cur_container->data.subforms.entries = inps;
adamc@759	1010
adamc@759	1011 inps->data.entry.fields = inps+1;
adamc@759	1012 ctx->cur_container = inps;
adamc@756	1013 } else {
adamc@1094	1014 int n = ctx->app->input_num(name);
adamc@756	1015
adam@1384	1016 if (n < 0)
adam@1384	1017 return 0;
adamc@801	1018
adamc@1094	1019 if (n >= ctx->app->inputs_len) {
adam@1444	1020 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	1021 return -1;
adamc@801	1022 }
adamc@756	1023
adamc@756	1024 INP(ctx)[n].kind = NORMAL;
adamc@756	1025 INP(ctx)[n].data.normal = value;
adamc@756	1026 }
adamc@801	1027
adamc@801	1028 return 0;
adamc@144	1029 }
adamc@144	1030
adamc@311	1031 char *uw_get_input(uw_context ctx, int n) {
adamc@169	1032 if (n < 0)
adamc@311	1033 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1034 if (n >= ctx->app->inputs_len)
adamc@311	1035 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1036
adamc@756	1037 switch (INP(ctx)[n].kind) {
adamc@737	1038 case UNSET:
adamc@737	1039 return NULL;
adamc@739	1040 case FIL:
adamc@739	1041 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1042 case SUBFORM:
adamc@756	1043 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1044 case SUBFORMS:
adamc@759	1045 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1046 case ENTRY:
adamc@759	1047 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1048 case NORMAL:
adamc@756	1049 return INP(ctx)[n].data.normal;
adamc@737	1050 default:
adamc@737	1051 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1052 }
adamc@138	1053 }
adamc@138	1054
adamc@311	1055 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	1056 if (n < 0)
adamc@311	1057 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1058 if (n >= ctx->app->inputs_len)
adamc@311	1059 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1060
adamc@756	1061 switch (INP(ctx)[n].kind) {
adamc@737	1062 case UNSET:
adamc@737	1063 return "";
adamc@739	1064 case FIL:
adamc@739	1065 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1066 case SUBFORM:
adamc@756	1067 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1068 case SUBFORMS:
adamc@759	1069 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1070 case ENTRY:
adamc@759	1071 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1072 case NORMAL:
adamc@756	1073 return INP(ctx)[n].data.normal;
adamc@737	1074 default:
adamc@737	1075 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1076 }
adamc@737	1077 }
adamc@737	1078
adamc@801	1079 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1080 int n = ctx->app->input_num(name);
adamc@737	1081
adamc@801	1082 if (n < 0) {
adam@2054	1083 uw_set_error(ctx, "Bad file input name");
adamc@801	1084 return -1;
adamc@801	1085 }
adamc@801	1086
adamc@1094	1087 if (n >= ctx->app->inputs_len) {
adam@2054	1088 uw_set_error(ctx, "For file input name, index %d is out of range", n);
adamc@801	1089 return -1;
adamc@801	1090 }
adamc@737	1091
adamc@739	1092 ctx->inputs[n].kind = FIL;
adamc@739	1093 ctx->inputs[n].data.file = f;
adamc@801	1094
adamc@801	1095 return 0;
adamc@737	1096 }
adamc@737	1097
adamc@739	1098 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1099
adamc@739	1100 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1101 if (n < 0)
adamc@737	1102 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1103 if (n >= ctx->app->inputs_len)
adamc@737	1104 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1105
adamc@756	1106 switch (INP(ctx)[n].kind) {
adamc@737	1107 case UNSET:
adamc@737	1108 {
adamc@739	1109 char *data = uw_malloc(ctx, 0);
adamc@740	1110 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1111 return f;
adamc@737	1112 }
adamc@739	1113 case FIL:
adamc@756	1114 return INP(ctx)[n].data.file;
adamc@737	1115 case NORMAL:
adamc@737	1116 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1117 case SUBFORM:
adamc@756	1118 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1119 case SUBFORMS:
adamc@759	1120 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1121 case ENTRY:
adamc@759	1122 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1123 default:
adamc@737	1124 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1125 }
adamc@190	1126 }
adamc@190	1127
adamc@756	1128 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1129 if (n < 0)
adamc@756	1130 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1131 if (n >= ctx->app->inputs_len)
adamc@756	1132 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1133
adamc@756	1134 switch (INP(ctx)[n].kind) {
adamc@756	1135 case UNSET:
adamc@756	1136 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1137 case FIL:
adamc@756	1138 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1139 case NORMAL:
adamc@756	1140 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1141 case SUBFORMS:
adamc@759	1142 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1143 case ENTRY:
adamc@759	1144 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1145 case SUBFORM:
adamc@759	1146 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1147 ctx->cur_container = &INP(ctx)[n];
adamc@756	1148 return;
adamc@756	1149 default:
adamc@756	1150 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1151 }
adamc@756	1152 }
adamc@756	1153
adamc@756	1154 void uw_leave_subform(uw_context ctx) {
adamc@756	1155 input *tmp;
adamc@756	1156
adamc@759	1157 if (ctx->cur_container == NULL)
adamc@756	1158 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1159
adamc@759	1160 tmp = ctx->cur_container;
adamc@759	1161 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1162 tmp->data.subform.parent = NULL;
adamc@759	1163 }
adamc@759	1164
adamc@759	1165 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1166 input *inps;
adamc@759	1167
adamc@759	1168 if (n < 0)
adamc@759	1169 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1170 if (n >= ctx->app->inputs_len)
adamc@759	1171 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1172
adamc@759	1173 switch (INP(ctx)[n].kind) {
adamc@759	1174 case UNSET:
adamc@759	1175 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1176 case FIL:
adamc@759	1177 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1178 case NORMAL:
adamc@759	1179 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1180 case SUBFORM:
adamc@759	1181 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1182 case ENTRY:
adamc@759	1183 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1184 case SUBFORMS:
adamc@759	1185 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1186 if (inps) {
adamc@759	1187 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1188 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1189 return 1;
adamc@759	1190 } else
adamc@759	1191 return 0;
adamc@759	1192 default:
adamc@759	1193 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1194 }
adamc@759	1195 }
adamc@759	1196
adamc@759	1197 int uw_next_entry(uw_context ctx) {
adamc@759	1198 if (ctx->cur_container == NULL)
adamc@759	1199 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1200
adamc@759	1201 switch (ctx->cur_container->kind) {
adamc@759	1202 case UNSET:
adamc@759	1203 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1204 case FIL:
adamc@759	1205 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1206 case NORMAL:
adamc@759	1207 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1208 case SUBFORM:
adamc@759	1209 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1210 case SUBFORMS:
adamc@759	1211 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1212 case ENTRY:
adamc@759	1213 if (ctx->cur_container->data.entry.next) {
adamc@759	1214 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1215 return 1;
adamc@759	1216 } else {
adamc@759	1217 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1218 return 0;
adamc@759	1219 }
adamc@759	1220 default:
adamc@759	1221 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1222 }
adamc@756	1223 }
adamc@756	1224
adamc@643	1225 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1226 ctx->script_header = s;
adamc@643	1227 }
adamc@643	1228
adamc@1094	1229 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1230 return ctx->app->url_prefix;
adamc@667	1231 }
adamc@667	1232
adamc@693	1233 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1234 ctx->needs_push = n;
adamc@693	1235 }
adamc@693	1236
adamc@736	1237 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1238 ctx->needs_sig = n;
adamc@736	1239 }
adamc@736	1240
adam@1936	1241 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936	1242 ctx->could_write_db = n;
adam@1936	1243 }
adam@1936	1244
adam@2056	1245 void uw_set_at_most_one_query(uw_context ctx, int n) {
adam@2056	1246 ctx->at_most_one_query = n;
adam@2056	1247 }
adam@2056	1248
adamc@667	1249
adam@1369	1250 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1251 if (b->back - b->front < extra) {
adamc@666	1252 size_t desired = b->front - b->start + extra, next;
adamc@136	1253 char *new_heap;
adamc@136	1254
adamc@666	1255 next = b->back - b->start;
adamc@317	1256 if (next == 0)
adamc@317	1257 next = 1;
adamc@317	1258 for (; next < desired; next *= 2);
adamc@136	1259
adamc@1134	1260 if (next > b->max) {
adamc@1113	1261 if (desired <= b->max)
adamc@1113	1262 next = desired;
adamc@1113	1263 else
adamc@1113	1264 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1265 }
adamc@1113	1266
adamc@666	1267 new_heap = realloc(b->start, next);
adamc@666	1268 b->front = new_heap + (b->front - b->start);
adamc@666	1269 b->back = new_heap + next;
adamc@136	1270
adamc@667	1271 if (new_heap != b->start) {
adamc@666	1272 b->start = new_heap;
adam@1389	1273 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1274 }
adamc@136	1275
adamc@666	1276 b->start = new_heap;
adamc@136	1277 }
adamc@136	1278 }
adamc@136	1279
adamc@832	1280 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1281 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1282 }
adamc@666	1283
adamc@832	1284 char *uw_heap_front(uw_context ctx) {
adamc@832	1285 return ctx->heap.front;
adamc@832	1286 }
adamc@832	1287
adamc@832	1288 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1289 ctx->heap.front = fr;
adamc@832	1290 }
adamc@832	1291
adam@1782	1292 void uw_begin_initializing(uw_context ctx) {
adam@1782	1293 ctx->amInitializing = 1;
adam@1782	1294 }
adam@1782	1295
adam@1782	1296 void uw_end_initializing(uw_context ctx) {
adam@1782	1297 ctx->amInitializing = 0;
adam@1782	1298 }
adam@1782	1299
adam@2013	1300 static void align_heap(uw_context ctx) {
adam@2013	1301 size_t posn = ctx->heap.front - ctx->heap.start;
adam@2013	1302
adam@2017	1303 if (posn % sizeof(void *) != 0) {
adam@2017	1304 size_t bump = sizeof(void ) - posn % sizeof(void );
adam@2013	1305 uw_check_heap(ctx, bump);
adam@2013	1306 ctx->heap.front += bump;
adam@2013	1307 }
adam@2013	1308 }
adam@2013	1309
adamc@311	1310 void *uw_malloc(uw_context ctx, size_t len) {
adam@2013	1311 // On some architectures, it's important that all word-sized memory accesses
adam@2013	1312 // be to word-aligned addresses, so we'll do a little bit of extra work here
adam@2013	1313 // in anticipation of a possible word-aligned access to the address we'll
adam@2013	1314 // return.
adam@2013	1315
adamc@136	1316 void *result;
adamc@136	1317
adam@1782	1318 if (ctx->amInitializing) {
adam@2017	1319 int error = posix_memalign(&result, sizeof(void *), len);
adam@2013	1320
adam@2013	1321 if (!error)
adam@1782	1322 return result;
adam@1782	1323 else
adam@2013	1324 uw_error(ctx, FATAL, "uw_malloc: posix_memalign() returns %d", error);
adam@1782	1325 } else {
adam@2013	1326 align_heap(ctx);
adam@2013	1327
adam@1782	1328 uw_check_heap(ctx, len);
adam@1782	1329
adam@1782	1330 result = ctx->heap.front;
adam@1782	1331 ctx->heap.front += len;
adam@1782	1332 return result;
adam@1782	1333 }
adamc@117	1334 }
adamc@117	1335
adamc@323	1336 void uw_begin_region(uw_context ctx) {
adam@2013	1337 align_heap(ctx);
adam@2013	1338
adamc@666	1339 regions r = (regions ) ctx->heap.front;
adamc@323	1340
adamc@323	1341 uw_check_heap(ctx, sizeof(regions));
adamc@323	1342
adamc@666	1343 ctx->heap.front += sizeof(regions);
adamc@323	1344
adamc@323	1345 r->next = ctx->regions;
adamc@323	1346 ctx->regions = r;
adamc@323	1347 }
adamc@323	1348
adamc@323	1349 void uw_end_region(uw_context ctx) {
adamc@323	1350 regions *r = ctx->regions;
adamc@323	1351
adamc@323	1352 if (r == NULL)
adamc@323	1353 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1354
adamc@666	1355 ctx->heap.front = (char *) r;
adamc@323	1356 ctx->regions = r->next;
adamc@323	1357 }
adamc@323	1358
adamc@324	1359 void uw_memstats(uw_context ctx) {
adam@1369	1360 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1361 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1362 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1363 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1364 }
adamc@324	1365
adam@1915	1366 int uw_pagelen(uw_context ctx) {
adam@1915	1367 return ctx->page.front - ctx->page.start;
adam@1915	1368 }
adam@1915	1369
adamc@311	1370 int uw_send(uw_context ctx, int sock) {
adam@1949	1371 size_t target_length = (ctx->outHeaders.front - ctx->outHeaders.start) + 2 + (ctx->page.front - ctx->page.start);
adam@1949	1372
adam@1949	1373 if (ctx->output_buffer_size < target_length) {
adam@1949	1374 do {
adam@1949	1375 ctx->output_buffer_size *= 2;
adam@1949	1376 } while (ctx->output_buffer_size < target_length);
adam@1949	1377 ctx->output_buffer = realloc(ctx->output_buffer, ctx->output_buffer_size);
adam@1949	1378 }
adam@1949	1379
adam@1949	1380 memcpy(ctx->output_buffer, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adam@1949	1381 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start), "\r\n", 2);
adam@1949	1382 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start) + 2, ctx->page.start, ctx->page.front - ctx->page.start);
adam@1949	1383
adam@1949	1384 return uw_really_send(sock, ctx->output_buffer, target_length);
adamc@462	1385 }
adamc@462	1386
adamc@856	1387 int uw_print(uw_context ctx, int fd) {
adamc@856	1388 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1389
adamc@856	1390 if (n < 0)
adamc@856	1391 return n;
adamc@856	1392
adamc@856	1393 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1394
adamc@856	1395 if (n < 0)
adamc@856	1396 return n;
adamc@856	1397
adamc@856	1398 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1399 }
adamc@856	1400
adamc@860	1401 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1402 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1403
adamc@860	1404 if (n < 0)
adamc@860	1405 return n;
adamc@860	1406
adamc@860	1407 n = output(data, "\r\n", 2);
adamc@860	1408
adamc@860	1409 if (n < 0)
adamc@860	1410 return n;
adamc@860	1411
adamc@860	1412 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1413 }
adamc@860	1414
adamc@462	1415 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1416 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1417 }
adamc@462	1418
adamc@462	1419 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1420 int len = strlen(s);
adamc@462	1421
adamc@462	1422 uw_check_headers(ctx, len + 1);
adamc@666	1423 strcpy(ctx->outHeaders.front, s);
adamc@666	1424 ctx->outHeaders.front += len;
adamc@562	1425 }
adamc@562	1426
adam@1934	1427 int uw_has_contentLength(uw_context ctx) {
adam@1934	1428 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934	1429 }
adam@1934	1430
adamc@1110	1431 void uw_clear_headers(uw_context ctx) {
adam@1369	1432 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1433 }
adamc@1110	1434
adam@1932	1435 void uw_Basis_clear_page(uw_context ctx) {
adam@1932	1436 uw_buffer_reset(&ctx->page);
adam@1932	1437 }
adam@1932	1438
adamc@562	1439 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1440 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1441 }
adamc@562	1442
adamc@562	1443 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1444 int len = strlen(s);
adamc@562	1445
adamc@562	1446 uw_check_script(ctx, len + 1);
adamc@666	1447 strcpy(ctx->script.front, s);
adamc@666	1448 ctx->script.front += len;
adamc@562	1449 }
adamc@562	1450
adam@1446	1451 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1452 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1453 uw_write_script(ctx, "sig=\"");
adam@1671	1454 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1455 uw_write_script(ctx, "\";");
adam@1671	1456 }
adam@1671	1457
adam@1446	1458 return ctx->script.start;
adam@1446	1459 }
adam@1446	1460
adamc@695	1461 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1462 if (s[0] == 0)
adamc@695	1463 return "";
adamc@695	1464 else {
adamc@695	1465 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1466 sprintf(r, " onload='%s'", s);
adamc@695	1467 return r;
adamc@695	1468 }
adamc@695	1469 }
adamc@695	1470
adamc@1042	1471 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1472 if (ctx->script_header[0] == 0)
adamc@1042	1473 return "";
adamc@1042	1474 else {
vshabanoff@1763	1475 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763	1476 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042	1477 return r;
adamc@1042	1478 }
adamc@1042	1479 }
adamc@1042	1480
adamc@694	1481 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1482 if (ctx->client == NULL) {
adamc@736	1483 if (ctx->needs_sig) {
adamc@1094	1484 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1485 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1486 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1487 return r;
adamc@736	1488 }
adamc@736	1489 else
adamc@736	1490 return "";
adamc@736	1491 } else {
adamc@1094	1492 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1493 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1494 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1495 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1496 (ctx->isPost ? "true" : "false"),
adamc@682	1497 ctx->client->id,
adamc@682	1498 ctx->client->pass,
adamc@1094	1499 ctx->app->url_prefix,
adamc@1094	1500 ctx->app->timeout,
adamc@736	1501 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1502 sig,
adamc@736	1503 ctx->needs_sig ? "\";" : "");
adamc@679	1504 return r;
adamc@668	1505 }
adamc@667	1506 }
adamc@667	1507
adamc@574	1508 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1509 char r, s2;
adamc@574	1510
adam@1446	1511 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1512
adamc@666	1513 r = s2 = ctx->heap.front;
adamc@574	1514 *s2++ = '"';
adamc@574	1515
adamc@574	1516 for (; *s; s++) {
adam@1286	1517 unsigned char c = *s;
adamc@574	1518
adamc@574	1519 switch (c) {
adamc@574	1520 case '"':
adamc@574	1521 strcpy(s2, "\\\"");
adamc@574	1522 s2 += 2;
adamc@574	1523 break;
adamc@1027	1524 case '\'':
adamc@1027	1525 strcpy(s2, "\\047");
adamc@1027	1526 s2 += 4;
adamc@1027	1527 break;
adamc@574	1528 case '\\':
adamc@574	1529 strcpy(s2, "\\\\");
adamc@574	1530 s2 += 2;
adamc@574	1531 break;
adam@1457	1532 case '<':
adam@1457	1533 strcpy(s2, "\\074");
adam@1457	1534 s2 += 4;
adam@1457	1535 break;
adamc@574	1536 default:
adam@1286	1537 if (isprint((int)c) \|\| c >= 128)
adamc@574	1538 *s2++ = c;
adamc@574	1539 else {
adam@1429	1540 sprintf(s2, "\\%03o", c);
adamc@574	1541 s2 += 4;
adamc@574	1542 }
adamc@574	1543 }
adamc@574	1544 }
adamc@574	1545
adamc@574	1546 strcpy(s2, "\"");
adamc@910	1547 ctx->heap.front = s2 + 2;
adamc@574	1548 return r;
adamc@574	1549 }
adamc@574	1550
adam@1286	1551 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1552 unsigned char c = c1;
adamc@1025	1553 char r, s2;
adamc@1025	1554
adam@1446	1555 uw_check_heap(ctx, 7);
adamc@1025	1556
adamc@1025	1557 r = s2 = ctx->heap.front;
adamc@1025	1558 *s2++ = '"';
adamc@1025	1559
adamc@1025	1560 switch (c) {
adamc@1025	1561 case '"':
adamc@1025	1562 strcpy(s2, "\\\"");
adamc@1025	1563 s2 += 2;
adamc@1025	1564 break;
adamc@1027	1565 case '\'':
adamc@1027	1566 strcpy(s2, "\\047");
adamc@1027	1567 s2 += 4;
adamc@1027	1568 break;
adamc@1025	1569 case '\\':
adamc@1025	1570 strcpy(s2, "\\\\");
adamc@1025	1571 s2 += 2;
adamc@1025	1572 break;
adam@1457	1573 case '<':
adam@1457	1574 strcpy(s2, "\\074");
adam@1457	1575 s2 += 4;
adam@1457	1576 break;
adamc@1025	1577 default:
adam@1286	1578 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1579 *s2++ = c;
adamc@1025	1580 else {
adam@1429	1581 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1582 s2 += 4;
adamc@1025	1583 }
adamc@1025	1584 }
adamc@1025	1585
adamc@1025	1586 strcpy(s2, "\"");
adamc@1025	1587 ctx->heap.front = s2 + 2;
adamc@1025	1588 return r;
adamc@1025	1589 }
adamc@1025	1590
adamc@574	1591 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1592 char r, s2;
adamc@574	1593
adam@1446	1594 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1595
adamc@666	1596 r = s2 = ctx->script.front;
adamc@574	1597 *s2++ = '"';
adamc@574	1598
adamc@574	1599 for (; *s; s++) {
adam@1286	1600 unsigned char c = *s;
adamc@574	1601
adamc@574	1602 switch (c) {
adamc@577	1603 case '\'':
adamc@1027	1604 strcpy(s2, "\\");
adamc@574	1605 s2 += 2;
adamc@574	1606 break;
adamc@574	1607 case '\\':
adamc@574	1608 strcpy(s2, "\\\\");
adamc@574	1609 s2 += 2;
adamc@574	1610 break;
adam@1457	1611 case '<':
adam@1457	1612 strcpy(s2, "\\074");
adam@1457	1613 s2 += 4;
adam@1457	1614 break;
adamc@574	1615 default:
adam@1286	1616 if (isprint((int)c) \|\| c >= 128)
adamc@574	1617 *s2++ = c;
adamc@574	1618 else {
adam@1429	1619 sprintf(s2, "\\%03o", c);
adamc@574	1620 s2 += 4;
adamc@574	1621 }
adamc@574	1622 }
adamc@574	1623 }
adamc@574	1624
adamc@574	1625 strcpy(s2, "\"");
adamc@666	1626 ctx->script.front = s2 + 1;
adamc@574	1627 return r;
adamc@574	1628 }
adamc@574	1629
adamc@682	1630 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1631 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1632 return "null";
adamc@682	1633 else {
adamc@682	1634 int len;
adamc@682	1635 char *r;
adamc@682	1636
adamc@682	1637 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1638 r = ctx->heap.front;
adamc@682	1639 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1640 ctx->heap.front += len+1;
adamc@682	1641 return r;
adamc@682	1642 }
adamc@682	1643 }
adamc@682	1644
adam@1446	1645 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1646 int len;
adamc@577	1647 size_t s_len = strlen(s);
adamc@562	1648
grrwlf@1998	1649 if(ctx->id < 0)
grrwlf@1998	1650 uw_error(ctx, FATAL, "Attempt to create client source using inappropriate context");
grrwlf@1998	1651
adam@1446	1652 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1653 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1654 ctx->script.front += len;
adamc@666	1655 strcpy(ctx->script.front, s);
adamc@666	1656 ctx->script.front += s_len;
adamc@970	1657 strcpy(ctx->script.front, "));");
adamc@972	1658 ctx->script.front += 3;
adamc@562	1659
adam@1446	1660 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1661 return r;
adam@1446	1662 }
adam@1446	1663
adam@1446	1664 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1665 int len;
adamc@577	1666 size_t s_len = strlen(s);
adamc@577	1667
adam@1446	1668 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1669 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1670 ctx->script.front += len;
adamc@666	1671 strcpy(ctx->script.front, s);
adamc@666	1672 ctx->script.front += s_len;
adamc@970	1673 strcpy(ctx->script.front, "));");
adamc@972	1674 ctx->script.front += 3;
adamc@577	1675
adamc@577	1676 return uw_unit_v;
adamc@577	1677 }
adamc@577	1678
adamc@311	1679 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1680 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1681 }
adamc@117	1682
adamc@311	1683 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1684 *(ctx->page.front)++ = c;
adam@1413	1685 *ctx->page.front = 0;
adamc@117	1686 }
adamc@117	1687
adamc@311	1688 void uw_writec(uw_context ctx, char c) {
adam@1413	1689 uw_check(ctx, 2);
adamc@311	1690 uw_writec_unsafe(ctx, c);
adamc@117	1691 }
adamc@117	1692
adam@2085	1693 void uw_Basis_writec(uw_context ctx, char c) {
adam@2085	1694 uw_writec(ctx, c);
adam@2085	1695 }
adam@2085	1696
adamc@311	1697 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1698 int len = strlen(s);
adamc@666	1699 memcpy(ctx->page.front, s, len);
adamc@666	1700 ctx->page.front += len;
adamc@117	1701 }
adamc@117	1702
adamc@311	1703 void uw_write(uw_context ctx, const char* s) {
adamc@311	1704 uw_check(ctx, strlen(s) + 1);
adamc@311	1705 uw_write_unsafe(ctx, s);
adamc@666	1706 *ctx->page.front = 0;
adamc@102	1707 }
adamc@106	1708
adamc@311	1709 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1710 char *result;
adamc@136	1711 int len;
adamc@311	1712 uw_check_heap(ctx, INTS_MAX);
adamc@666	1713 result = ctx->heap.front;
adamc@276	1714 sprintf(result, "%lld%n", n, &len);
adamc@666	1715 ctx->heap.front += len+1;
adamc@136	1716 return result;
adamc@106	1717 }
adamc@106	1718
adamc@311	1719 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1720 char *result;
adamc@136	1721 int len;
adamc@311	1722 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1723 result = ctx->heap.front;
adam@1920	1724 sprintf(result, "%.16g%n", n, &len);
adamc@666	1725 ctx->heap.front += len+1;
adamc@136	1726 return result;
adamc@106	1727 }
adamc@106	1728
adamc@311	1729 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1730 int len = strlen(s);
adamc@136	1731 char result, p;
adamc@311	1732 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1733
adamc@666	1734 result = p = ctx->heap.front;
adamc@136	1735
adamc@136	1736 for (; *s; s++) {
adamc@1054	1737 unsigned char c = *s;
adamc@136	1738
adamc@136	1739 if (c == '"') {
adamc@136	1740 strcpy(p, """);
adamc@136	1741 p += 6;
adamc@136	1742 } else if (c == '&') {
adamc@136	1743 strcpy(p, "&");
adamc@136	1744 p += 5;
adamc@136	1745 }
adamc@1059	1746 else
adamc@136	1747 *p++ = c;
adamc@136	1748 }
adamc@136	1749
adamc@137	1750 *p++ = 0;
adamc@666	1751 ctx->heap.front = p;
adamc@136	1752 return result;
adamc@106	1753 }
adamc@106	1754
adamc@1011	1755 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1756 char result, p;
adamc@1011	1757 uw_check_heap(ctx, 7);
adamc@1011	1758
adamc@1011	1759 result = p = ctx->heap.front;
adamc@1011	1760
adamc@1011	1761 if (c == '"') {
adamc@1011	1762 strcpy(p, """);
adamc@1011	1763 p += 6;
adamc@1011	1764 } else if (c == '&') {
adamc@1011	1765 strcpy(p, "&");
adamc@1011	1766 p += 5;
adamc@1011	1767 }
adamc@1059	1768 else
adamc@1011	1769 *p++ = c;
adamc@1011	1770
adamc@1011	1771 *p++ = 0;
adamc@1011	1772 ctx->heap.front = p;
adamc@1011	1773 return result;
adamc@1011	1774 }
adamc@1011	1775
adamc@721	1776 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1777 return s;
adamc@721	1778 }
adamc@721	1779
adamc@311	1780 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1781 int len;
adamc@117	1782
adamc@666	1783 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1784 ctx->page.front += len;
adamc@106	1785 }
adamc@106	1786
adamc@428	1787 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1788 uw_check(ctx, INTS_MAX);
adamc@311	1789 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1790
adamc@428	1791 return uw_unit_v;
adamc@106	1792 }
adamc@106	1793
adamc@428	1794 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1795 int len;
adamc@117	1796
adamc@311	1797 uw_check(ctx, FLOATS_MAX);
adamc@666	1798 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1799 ctx->page.front += len;
adamc@428	1800
adamc@428	1801 return uw_unit_v;
adamc@117	1802 }
adamc@117	1803
adamc@428	1804 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1805 uw_check(ctx, strlen(s) * 6);
adamc@117	1806
adamc@106	1807 for (; *s; s++) {
adamc@1054	1808 unsigned char c = *s;
adamc@106	1809
adamc@106	1810 if (c == '"')
adamc@311	1811 uw_write_unsafe(ctx, """);
adamc@136	1812 else if (c == '&')
adamc@311	1813 uw_write_unsafe(ctx, "&");
adamc@1059	1814 else
adamc@311	1815 uw_writec_unsafe(ctx, c);
adamc@106	1816 }
adamc@428	1817
adamc@428	1818 return uw_unit_v;
adamc@106	1819 }
adamc@120	1820
adamc@1011	1821 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1822 uw_check(ctx, 6);
adamc@1011	1823
adamc@1011	1824 if (c == '"')
adamc@1011	1825 uw_write_unsafe(ctx, """);
adamc@1011	1826 else if (c == '&')
adamc@1011	1827 uw_write_unsafe(ctx, "&");
adamc@1059	1828 else
adamc@1011	1829 uw_writec_unsafe(ctx, c);
adamc@1011	1830
adamc@1011	1831 return uw_unit_v;
adamc@1011	1832 }
adamc@1011	1833
adamc@120	1834
adamc@311	1835 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1836 int len;
adamc@137	1837 char *r;
adamc@137	1838
adamc@311	1839 uw_check_heap(ctx, INTS_MAX);
adamc@666	1840 r = ctx->heap.front;
adamc@276	1841 sprintf(r, "%lld%n", n, &len);
adamc@666	1842 ctx->heap.front += len+1;
adamc@137	1843 return r;
adamc@120	1844 }
adamc@120	1845
adamc@682	1846 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1847 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1848 return "";
adamc@682	1849 else {
adamc@682	1850 int len;
adamc@682	1851 char *r;
adamc@679	1852
adamc@682	1853 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1854 r = ctx->heap.front;
adamc@682	1855 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1856 ctx->heap.front += len+1;
adamc@682	1857 return r;
adamc@682	1858 }
adamc@679	1859 }
adamc@679	1860
adamc@311	1861 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1862 int len;
adamc@137	1863 char *r;
adamc@137	1864
adamc@311	1865 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1866 r = ctx->heap.front;
adamc@137	1867 sprintf(r, "%g%n", n, &len);
adamc@666	1868 ctx->heap.front += len+1;
adamc@137	1869 return r;
adamc@120	1870 }
adamc@120	1871
adamc@311	1872 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1873 char r, p;
adamc@137	1874
adamc@925	1875 if (s[0] == '\0')
adamc@925	1876 return "_";
adamc@925	1877
adamc@925	1878 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1879
adamc@925	1880 r = p = ctx->heap.front;
adamc@925	1881 if (s[0] == '_')
adamc@925	1882 *p++ = '_';
adamc@925	1883
adamc@925	1884 for (; *s; s++) {
adamc@1087	1885 unsigned char c = *s;
adamc@137	1886
adamc@137	1887 if (c == ' ')
adamc@137	1888 *p++ = '+';
adamc@137	1889 else if (isalnum(c))
adamc@137	1890 *p++ = c;
adamc@137	1891 else {
adamc@1259	1892 sprintf(p, ".%02X", c);
adamc@137	1893 p += 3;
adamc@137	1894 }
adamc@137	1895 }
adamc@137	1896
adamc@137	1897 *p++ = 0;
adamc@666	1898 ctx->heap.front = p;
adamc@137	1899 return r;
adamc@120	1900 }
adamc@120	1901
adamc@311	1902 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1903 if (b == uw_Basis_False)
adamc@186	1904 return "0";
adamc@186	1905 else
adamc@186	1906 return "1";
adamc@186	1907 }
adamc@186	1908
adam@1620	1909 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1910 char *r;
adam@1620	1911 int len;
adam@1620	1912 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1913 r = ctx->heap.front;
adam@1620	1914 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1915 ctx->heap.front += len+1;
adam@1620	1916 return r;
adam@1620	1917 }
adam@1620	1918
adamc@311	1919 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1920 int len;
adamc@120	1921
adamc@666	1922 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1923 ctx->page.front += len;
adamc@120	1924 }
adamc@120	1925
adamc@428	1926 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1927 uw_check(ctx, INTS_MAX);
adamc@311	1928 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1929
adamc@428	1930 return uw_unit_v;
adamc@120	1931 }
adamc@120	1932
adamc@682	1933 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1934 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1935 int len;
phurst@1981	1936
adamc@682	1937 uw_check(ctx, INTS_MAX + 1);
adamc@682	1938 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1939 ctx->page.front += len;
adamc@682	1940 }
phurst@1981	1941
adamc@679	1942 return uw_unit_v;
adamc@679	1943 }
adamc@679	1944
adamc@428	1945 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1946 int len;
adamc@120	1947
adamc@311	1948 uw_check(ctx, FLOATS_MAX);
adamc@666	1949 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1950 ctx->page.front += len;
adamc@428	1951
adamc@428	1952 return uw_unit_v;
adamc@120	1953 }
adamc@120	1954
adamc@488	1955 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1956 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1957 }
adamc@488	1958
adam@1404	1959 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1960 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1961 }
adam@1404	1962
adamc@428	1963 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1964 if (s[0] == '\0') {
adamc@925	1965 uw_check(ctx, 1);
adamc@925	1966 uw_writec_unsafe(ctx, '_');
adamc@925	1967 return uw_unit_v;
adamc@925	1968 }
adamc@925	1969
adamc@925	1970 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1971
adamc@925	1972 if (s[0] == '_')
adamc@925	1973 uw_writec_unsafe(ctx, '_');
adamc@120	1974
adamc@120	1975 for (; *s; s++) {
adamc@1087	1976 unsigned char c = *s;
adamc@120	1977
adamc@120	1978 if (c == ' ')
adamc@311	1979 uw_writec_unsafe(ctx, '+');
adamc@120	1980 else if (isalnum(c))
adamc@311	1981 uw_writec_unsafe(ctx, c);
adamc@120	1982 else {
adamc@1259	1983 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1984 ctx->page.front += 3;
adamc@120	1985 }
adamc@120	1986 }
adamc@428	1987
adamc@428	1988 return uw_unit_v;
adamc@120	1989 }
adamc@120	1990
adamc@428	1991 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1992 if (b == uw_Basis_False)
adamc@311	1993 uw_writec(ctx, '0');
adamc@186	1994 else
adamc@311	1995 uw_writec(ctx, '1');
adamc@428	1996
adamc@428	1997 return uw_unit_v;
adamc@186	1998 }
adamc@186	1999
adam@1620	2000 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	2001 int len;
phurst@1981	2002
adam@1620	2003 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	2004 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	2005 ctx->page.front += len;
phurst@1981	2006
adam@1620	2007 return uw_unit_v;
adam@1620	2008 }
adam@1620	2009
adamc@120	2010
adamc@311	2011 static char uw_unurlify_advance(char s) {
adamc@144	2012 char *new_s = strchr(s, '/');
adamc@120	2013
adamc@120	2014 if (new_s)
adamc@120	2015 *new_s++ = 0;
adamc@120	2016 else
adamc@144	2017 new_s = strchr(s, 0);
adamc@144	2018
adamc@144	2019 return new_s;
adamc@144	2020 }
adamc@144	2021
adamc@311	2022 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	2023 char new_s = uw_unurlify_advance(s);
adamc@311	2024 uw_Basis_int r;
adamc@120	2025
adamc@276	2026 r = atoll(*s);
adamc@120	2027 *s = new_s;
adamc@120	2028 return r;
adamc@120	2029 }
adamc@120	2030
adamc@311	2031 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	2032 char new_s = uw_unurlify_advance(s);
adamc@311	2033 uw_Basis_float r;
adamc@120	2034
adamc@120	2035 r = atof(*s);
adamc@120	2036 *s = new_s;
adamc@120	2037 return r;
adamc@120	2038 }
adamc@120	2039
adamc@488	2040 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	2041 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	2042 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	2043 return r;
adamc@488	2044 }
adamc@488	2045
adamc@1023	2046 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	2047 char s1, s2 = s;
adamc@144	2048 int n;
adamc@136	2049
adamc@1023	2050 if (!fromClient) {
adamc@1023	2051 if (*s2 == '_')
adamc@1023	2052 ++s2;
adamc@1259	2053 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	2054 s2 += 3;
adamc@1023	2055 }
adamc@925	2056
adamc@927	2057 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	2058 unsigned char c = *s2;
adamc@136	2059
adamc@136	2060 switch (c) {
adamc@136	2061 case '+':
adamc@136	2062 *s1 = ' ';
adamc@136	2063 break;
adamc@136	2064 case '%':
adamc@169	2065 if (s2[1] == 0)
adamc@311	2066 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	2067 if (s2[2] == 0)
adamc@311	2068 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	2069 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2070 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	2071 *s1 = n;
adamc@136	2072 s2 += 2;
adamc@136	2073 break;
adamc@1259	2074 case '.':
adamc@1259	2075 if (!fromClient) {
adamc@1259	2076 if (s2[1] == 0)
adamc@1259	2077 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	2078 if (s2[2] == 0)
adamc@1259	2079 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	2080 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2081 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	2082 *s1 = n;
adamc@1259	2083 s2 += 2;
adamc@1259	2084 break;
adamc@1259	2085 }
adamc@136	2086 default:
adamc@136	2087 *s1 = c;
adamc@136	2088 }
adamc@136	2089 }
adamc@136	2090 *s1++ = 0;
adamc@144	2091 return s1;
adamc@144	2092 }
adamc@144	2093
adamc@311	2094 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	2095 char new_s = uw_unurlify_advance(s);
adamc@311	2096 uw_Basis_bool r;
phurst@1981	2097
adamc@186	2098 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2099 r = uw_Basis_False;
adamc@186	2100 else
adamc@311	2101 r = uw_Basis_True;
adamc@186	2102
adamc@186	2103 *s = new_s;
adamc@186	2104 return r;
adamc@186	2105 }
adamc@186	2106
adamc@311	2107 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2108 char new_s = uw_unurlify_advance(s);
adamc@1134	2109 char *r;
adamc@1134	2110 int len;
adamc@144	2111
adamc@200	2112 len = strlen(*s);
adamc@311	2113 uw_check_heap(ctx, len + 1);
adamc@144	2114
adamc@666	2115 r = ctx->heap.front;
adamc@1023	2116 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2117 *s = new_s;
adamc@1023	2118 return r;
adamc@1023	2119 }
adamc@1023	2120
adamc@1109	2121 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2122 s = uw_unurlify_advance(s);
adamc@1109	2123 return uw_unit_v;
adamc@1109	2124 }
adamc@1109	2125
adamc@1023	2126 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2127 char new_s = uw_unurlify_advance(s);
adamc@1134	2128 char *r;
adamc@1134	2129 int len;
adamc@1023	2130
adamc@1023	2131 len = strlen(*s);
adamc@1023	2132 uw_check_heap(ctx, len + 1);
adamc@1023	2133
adamc@1023	2134 r = ctx->heap.front;
adamc@1023	2135 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2136 *s = new_s;
adamc@136	2137 return r;
adamc@120	2138 }
adamc@135	2139
adamc@135	2140
adamc@311	2141 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2142 int len;
adamc@286	2143 char *r;
adamc@286	2144
adamc@311	2145 uw_check_heap(ctx, INTS_MAX);
adamc@666	2146 r = ctx->heap.front;
adamc@286	2147 sprintf(r, "%lld%n", n, &len);
adamc@666	2148 ctx->heap.front += len+1;
adamc@286	2149 return r;
adamc@286	2150 }
adamc@286	2151
adamc@428	2152 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2153 int len;
adamc@286	2154
adamc@311	2155 uw_check(ctx, INTS_MAX);
adamc@666	2156 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2157 ctx->page.front += len;
phurst@1981	2158
adamc@428	2159 return uw_unit_v;
adamc@286	2160 }
adamc@286	2161
adam@1358	2162 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2163 unsigned int n = ch;
adam@1358	2164 int len;
adam@1358	2165 char *r;
adam@1358	2166
adam@1358	2167 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2168 r = ctx->heap.front;
adam@1358	2169 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2170 ctx->heap.front += len+1;
adam@1358	2171 return r;
adam@1358	2172 }
adam@1358	2173
adam@1358	2174 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2175 unsigned int n = ch;
adam@1358	2176 int len;
adam@1358	2177
adam@1358	2178 uw_check(ctx, INTS_MAX+3);
adam@1358	2179 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2180 ctx->page.front += len;
adam@1358	2181 return uw_unit_v;
adam@1358	2182 }
adam@1358	2183
adamc@311	2184 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2185 int len;
adamc@286	2186 char *r;
adamc@286	2187
adamc@311	2188 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2189 r = ctx->heap.front;
adamc@286	2190 sprintf(r, "%g%n", n, &len);
adamc@666	2191 ctx->heap.front += len+1;
adamc@286	2192 return r;
adamc@286	2193 }
adamc@286	2194
adamc@428	2195 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2196 int len;
adamc@286	2197
adamc@311	2198 uw_check(ctx, FLOATS_MAX);
adamc@666	2199 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2200 ctx->page.front += len;
adamc@428	2201
adamc@428	2202 return uw_unit_v;
adamc@286	2203 }
adamc@286	2204
adam@1365	2205 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2206 int len;
adam@1360	2207 char *r;
adam@1360	2208
adam@1360	2209 uw_check_heap(ctx, INTS_MAX);
adam@1360	2210 r = ctx->heap.front;
adamc@1377	2211 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2212 ctx->heap.front += len+1;
adam@1360	2213 return r;
adam@1360	2214 }
adam@1360	2215
adam@1365	2216 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2217 int len;
adam@1360	2218
adam@1360	2219 uw_check(ctx, INTS_MAX);
adam@1360	2220 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2221 ctx->page.front += len;
phurst@1981	2222
adam@1360	2223 return uw_unit_v;
adam@1360	2224 }
adam@1360	2225
adam@1444	2226 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2227 char r, s2;
adamc@137	2228
adamc@311	2229 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2230
adamc@666	2231 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2232 unsigned char c = *s;
adamc@137	2233
adamc@137	2234 switch (c) {
adamc@137	2235 case '<':
adamc@137	2236 strcpy(s2, "<");
adamc@137	2237 s2 += 4;
adamc@137	2238 break;
adamc@137	2239 case '&':
adamc@137	2240 strcpy(s2, "&");
adamc@137	2241 s2 += 5;
adamc@137	2242 break;
adamc@137	2243 default:
adamc@1059	2244 *s2++ = c;
adamc@137	2245 }
adamc@137	2246 }
adamc@137	2247
adamc@137	2248 *s2++ = 0;
adamc@666	2249 ctx->heap.front = s2;
adamc@137	2250 return r;
adamc@135	2251 }
adamc@135	2252
adamc@428	2253 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2254 uw_check(ctx, strlen(s) * 6);
adamc@135	2255
adamc@135	2256 for (; *s; s++) {
adamc@1054	2257 unsigned char c = *s;
adamc@135	2258
adamc@135	2259 switch (c) {
adamc@135	2260 case '<':
adamc@311	2261 uw_write_unsafe(ctx, "<");
adamc@135	2262 break;
adamc@135	2263 case '&':
adamc@311	2264 uw_write_unsafe(ctx, "&");
adamc@135	2265 break;
adamc@135	2266 default:
adamc@1059	2267 uw_writec_unsafe(ctx, c);
adamc@135	2268 }
adamc@135	2269 }
adamc@428	2270
adamc@428	2271 return uw_unit_v;
adamc@135	2272 }
adamc@180	2273
adamc@311	2274 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2275 if (b == uw_Basis_False)
adamc@286	2276 return "False";
adamc@286	2277 else
adamc@286	2278 return "True";
adamc@286	2279 }
adamc@286	2280
adamc@428	2281 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2282 if (b == uw_Basis_False) {
adamc@311	2283 uw_check(ctx, 6);
adamc@666	2284 strcpy(ctx->page.front, "False");
adamc@666	2285 ctx->page.front += 5;
adamc@286	2286 } else {
adamc@311	2287 uw_check(ctx, 5);
adamc@666	2288 strcpy(ctx->page.front, "True");
adamc@666	2289 ctx->page.front += 4;
adamc@286	2290 }
adamc@428	2291
adamc@428	2292 return uw_unit_v;
adamc@286	2293 }
adamc@286	2294
adamc@436	2295 #define TIME_FMT "%x %X"
adamc@438	2296 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2297 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2298
adam@1629	2299 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2300
adamc@436	2301 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2302 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2303 }
adamc@436	2304
adamc@436	2305 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2306 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2307 }
adamc@436	2308
adam@1446	2309 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2310 int len;
adam@1446	2311 char *r;
adam@1446	2312
adam@1446	2313 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2314 r = ctx->heap.front;
adam@1446	2315 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2316 ctx->heap.front += len+1;
adam@1446	2317 return r;
adam@1446	2318 }
adam@1446	2319
adam@1446	2320 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2321 int len;
adam@1446	2322
adam@1446	2323 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2324 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2325 ctx->page.front += len;
phurst@1981	2326
adam@1446	2327 return uw_unit_v;
adam@1446	2328 }
adam@1446	2329
adamc@821	2330 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2331 while (n >= 0) {
adam@1388	2332 if (*s == 0)
adam@1388	2333 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2334
adam@1388	2335 if (n == 0)
adam@1388	2336 return *s;
adam@1388	2337
adam@1388	2338 --n;
adam@1388	2339 ++s;
adam@1388	2340 }
adam@1388	2341
adam@1388	2342 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2343 }
adamc@821	2344
adamc@821	2345 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2346 while (n >= 0) {
adam@1388	2347 if (*s == 0 \|\| n == 0)
adam@1388	2348 return s;
adam@1388	2349
adam@1388	2350 --n;
adam@1388	2351 ++s;
adam@1388	2352 }
adam@1388	2353
adam@1388	2354 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2355 }
adamc@821	2356
adamc@828	2357 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2358 return strlen(s);
adamc@828	2359 }
adamc@828	2360
adam@1388	2361 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2362 while (n > 0) {
adam@1388	2363 if (*s == 0)
adam@1388	2364 return uw_Basis_False;
adam@1388	2365
adam@1388	2366 --n;
adam@1388	2367 ++s;
adam@1388	2368 }
adam@1388	2369
adam@1388	2370 return uw_Basis_True;
adam@1388	2371 }
adam@1388	2372
adamc@829	2373 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2374 return strchr(s, ch);
adamc@829	2375 }
adamc@829	2376
adamc@831	2377 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2378 return strcspn(s, chs);
adamc@831	2379 }
adamc@831	2380
adamc@829	2381 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2382 uw_Basis_string r = strchr(s, ch);
adamc@829	2383 if (r == NULL)
adamc@829	2384 return NULL;
adamc@829	2385 else {
adamc@829	2386 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2387 *nr = r - s;
adamc@829	2388 return nr;
adamc@829	2389 }
adamc@829	2390 }
adamc@829	2391
adam@1390	2392 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2393 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2394 if (r == NULL)
adam@1390	2395 return NULL;
adam@1390	2396 else {
adam@1390	2397 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2398 *nr = r - haystack;
adam@1390	2399 return nr;
adam@1390	2400 }
adam@1390	2401 }
adam@1390	2402
adamc@311	2403 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2404 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2405 char *s;
adamc@180	2406
adamc@311	2407 uw_check_heap(ctx, len);
adamc@180	2408
adamc@666	2409 s = ctx->heap.front;
adamc@180	2410
adamc@180	2411 strcpy(s, s1);
adamc@180	2412 strcat(s, s2);
adamc@666	2413 ctx->heap.front += len;
adamc@180	2414
adamc@180	2415 return s;
adamc@180	2416 }
adamc@278	2417
adamc@829	2418 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2419 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2420
adamc@829	2421 if (start < 0)
adamc@829	2422 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2423 if (len < 0)
adamc@829	2424 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2425 if (start + len > full_len)
adamc@829	2426 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2427
adamc@829	2428 if (start + len == full_len)
adamc@829	2429 return &s[start];
adamc@829	2430 else {
adamc@829	2431 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2432 memcpy(r, s+start, len);
adamc@829	2433 r[len] = 0;
adamc@829	2434 return r;
adamc@829	2435 }
phurst@1981	2436
adamc@829	2437 }
adamc@829	2438
adamc@1023	2439 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2440 char *r;
adamc@1023	2441
adamc@1023	2442 uw_check_heap(ctx, 2);
adamc@1023	2443 r = ctx->heap.front;
adamc@1023	2444 r[0] = ch;
adamc@1023	2445 r[1] = 0;
adamc@1023	2446
adamc@1023	2447 ctx->heap.front += 2;
adamc@1023	2448
adamc@1023	2449 return r;
adamc@1023	2450 }
adamc@1023	2451
adamc@737	2452 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2453 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2454 char *s;
adamc@278	2455
adamc@311	2456 uw_check_heap(ctx, len);
adamc@278	2457
adamc@666	2458 s = ctx->heap.front;
adamc@278	2459
adamc@278	2460 strcpy(s, s1);
adamc@666	2461 ctx->heap.front += len;
adamc@278	2462
adamc@278	2463 return s;
adamc@278	2464 }
adamc@280	2465
adam@1295	2466 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2467 if (ctx->error_message[0]) {
adam@1295	2468 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2469 ctx->error_message[0] = 0;
adam@1295	2470 return s;
adam@1295	2471 } else
adam@1295	2472 return NULL;
adam@1295	2473 }
adam@1295	2474
adamc@737	2475 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2476 if (s1)
adamc@737	2477 return uw_strdup(ctx, s1);
adamc@493	2478 else
adamc@493	2479 return NULL;
adamc@493	2480 }
adamc@493	2481
adamc@742	2482 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2483 char *r = uw_malloc(ctx, len);
adamc@742	2484 memcpy(r, p, len);
adamc@742	2485 return r;
adamc@742	2486 }
adamc@280	2487
adamc@879	2488 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2489
adamc@311	2490 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2491 int len;
adamc@281	2492 char *r;
adamc@281	2493
adamc@311	2494 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2495 r = ctx->heap.front;
adamc@879	2496 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2497 ctx->heap.front += len+1;
adamc@281	2498 return r;
adamc@281	2499 }
adamc@281	2500
adamc@467	2501 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2502 if (n == NULL)
adamc@467	2503 return "NULL";
adamc@467	2504 else
adamc@467	2505 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2506 }
adamc@467	2507
adam@1920	2508 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879	2509
adamc@311	2510 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2511 int len;
adamc@281	2512 char *r;
adamc@281	2513
adamc@311	2514 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2515 r = ctx->heap.front;
adamc@879	2516 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2517 ctx->heap.front += len+1;
adamc@281	2518 return r;
adamc@281	2519 }
adamc@281	2520
adamc@467	2521 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2522 if (n == NULL)
adamc@467	2523 return "NULL";
adamc@467	2524 else
adamc@467	2525 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2526 }
adamc@467	2527
adam@1834	2528 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2529 char *uw_sqlsuffixString = "::text";
adamc@1011	2530 char *uw_sqlsuffixChar = "::char";
adamc@281	2531
adamc@311	2532 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2533 char r, s2;
adamc@280	2534
adamc@879	2535 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2536
adamc@666	2537 r = s2 = ctx->heap.front;
adamc@879	2538 if (uw_Estrings)
adamc@879	2539 *s2++ = 'E';
adamc@280	2540 *s2++ = '\'';
adamc@280	2541
adamc@280	2542 for (; *s; s++) {
adamc@280	2543 char c = *s;
adamc@280	2544
adamc@280	2545 switch (c) {
adamc@280	2546 case '\'':
adamc@885	2547 if (uw_Estrings)
adamc@885	2548 strcpy(s2, "\\'");
adamc@885	2549 else
adamc@885	2550 strcpy(s2, "''");
adamc@280	2551 s2 += 2;
adamc@280	2552 break;
adamc@280	2553 case '\\':
adamc@885	2554 if (uw_Estrings) {
adamc@885	2555 strcpy(s2, "\\\\");
adamc@885	2556 s2 += 2;
adamc@885	2557 } else
adamc@885	2558 *s2++ = '\\';
adamc@280	2559 break;
adamc@280	2560 default:
adamc@1150	2561 if (isprint((int)c))
adamc@280	2562 *s2++ = c;
adamc@879	2563 else if (uw_Estrings) {
adam@1857	2564 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2565 s2 += 4;
adamc@280	2566 }
adamc@879	2567 else
adam@1689	2568 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2569 }
adamc@280	2570 }
adamc@280	2571
adamc@879	2572 *s2++ = '\'';
adamc@879	2573 strcpy(s2, uw_sqlsuffixString);
adamc@879	2574 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2575 return r;
adamc@280	2576 }
adamc@281	2577
adamc@1011	2578 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2579 char r, s2;
adamc@1011	2580
adamc@1011	2581 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2582
adamc@1011	2583 r = s2 = ctx->heap.front;
adamc@1011	2584 if (uw_Estrings)
adamc@1011	2585 *s2++ = 'E';
adamc@1011	2586 *s2++ = '\'';
adamc@1011	2587
adamc@1011	2588 switch (c) {
adamc@1011	2589 case '\'':
adamc@1011	2590 if (uw_Estrings)
adamc@1011	2591 strcpy(s2, "\\'");
adamc@1011	2592 else
adamc@1011	2593 strcpy(s2, "''");
adamc@1011	2594 s2 += 2;
adamc@1011	2595 break;
adamc@1011	2596 case '\\':
adamc@1011	2597 if (uw_Estrings) {
adamc@1011	2598 strcpy(s2, "\\\\");
adamc@1011	2599 s2 += 2;
adamc@1011	2600 } else
adamc@1011	2601 *s2++ = '\\';
adamc@1011	2602 break;
adamc@1011	2603 default:
adamc@1150	2604 if (isprint((int)c))
adamc@1011	2605 *s2++ = c;
adamc@1011	2606 else if (uw_Estrings) {
adam@1857	2607 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2608 s2 += 4;
adamc@1011	2609 }
adamc@1011	2610 else
adamc@1011	2611 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2612 }
adamc@1011	2613
adamc@1011	2614 *s2++ = '\'';
adamc@1011	2615 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2616 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2617 return r;
adamc@1011	2618 }
adamc@1011	2619
adamc@879	2620 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2621
adam@1867	2622 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2623 char r, s2;
adamc@737	2624 size_t i;
adamc@737	2625
adam@1867	2626 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2627
adamc@737	2628 r = s2 = ctx->heap.front;
adamc@879	2629 if (uw_Estrings)
adamc@879	2630 *s2++ = 'E';
adam@1867	2631 else
adam@1867	2632 *s2++ = 'X';
adamc@737	2633 *s2++ = '\'';
adamc@737	2634
adamc@737	2635 for (i = 0; i < b.size; ++i) {
adam@1867	2636 unsigned char c = b.data[i];
adam@1867	2637
adam@1867	2638 if (uw_Estrings) {
adam@1867	2639 switch (c) {
adam@1867	2640 case '\'':
adamc@885	2641 strcpy(s2, "\\'");
adam@1867	2642 s2 += 2;
adam@1867	2643 break;
adam@1867	2644 case '\\':
adamc@885	2645 strcpy(s2, "\\\\\\\\");
adamc@885	2646 s2 += 4;
adam@1867	2647 break;
adam@1867	2648 default:
adam@1867	2649 if (isprint((int)c))
adam@1867	2650 *s2++ = c;
adam@1867	2651 else {
adam@1867	2652 sprintf(s2, "\\\\%03o", c);
adam@1867	2653 s2 += 5;
adam@1867	2654 }
adamc@737	2655 }
adam@1867	2656 } else {
adam@1867	2657 sprintf(s2, "%02X", c);
adam@1867	2658 s2 += 2;
adamc@737	2659 }
phurst@1981	2660 }
adamc@737	2661
adamc@879	2662 *s2++ = '\'';
adamc@879	2663 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2664 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2665 return r;
adamc@737	2666 }
adamc@737	2667
adamc@682	2668 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2669 int len;
adamc@682	2670 char *r;
adamc@682	2671 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
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_sqlfmtInt, combo, &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_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2681 int len;
adamc@682	2682 char *r;
adamc@682	2683 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2684
adamc@682	2685 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2686 r = ctx->heap.front;
adamc@682	2687 sprintf(r, "%lld%n", combo, &len);
adamc@682	2688 ctx->heap.front += len+1;
adamc@682	2689 return r;
adamc@682	2690 }
adamc@682	2691
adamc@879	2692 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2693
adamc@682	2694 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2695 int len;
adamc@682	2696 char *r;
adamc@682	2697
adamc@682	2698 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2699 r = ctx->heap.front;
adamc@879	2700 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2701 ctx->heap.front += len+1;
adamc@682	2702 return r;
adamc@682	2703 }
adamc@682	2704
adamc@682	2705 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2706 int len;
adamc@682	2707 char *r;
adamc@682	2708
adamc@682	2709 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2710 r = ctx->heap.front;
adamc@682	2711 sprintf(r, "%u%n", cli, &len);
adamc@682	2712 ctx->heap.front += len+1;
adamc@682	2713 return r;
adamc@682	2714 }
adamc@682	2715
adamc@467	2716 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2717 if (s == NULL)
adamc@467	2718 return "NULL";
adamc@467	2719 else
adamc@467	2720 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2721 }
adamc@467	2722
adamc@311	2723 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2724 if (b == uw_Basis_False)
adamc@281	2725 return "FALSE";
adamc@281	2726 else
adamc@281	2727 return "TRUE";
adamc@281	2728 }
adamc@282	2729
adamc@467	2730 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2731 if (b == NULL)
adamc@467	2732 return "NULL";
adamc@467	2733 else
adamc@467	2734 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2735 }
adamc@467	2736
adamc@439	2737 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2738 size_t len;
adamc@682	2739 char r, s;
adam@1392	2740 struct tm stm = {};
adam@1392	2741 stm.tm_isdst = -1;
adamc@682	2742
adam@1365	2743 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2744 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2745 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2746 if (uw_sql_type_annotations) {
adam@1834	2747 if (t.microseconds) {
adam@1834	2748 r = uw_malloc(ctx, len + 21);
adam@1834	2749 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2750 } else {
adam@1834	2751 r = uw_malloc(ctx, len + 14);
adam@1834	2752 sprintf(r, "'%s'::timestamp", s);
adam@1834	2753 }
adam@1367	2754 } else {
adam@1834	2755 r = uw_malloc(ctx, len + 3);
adam@1834	2756 sprintf(r, "'%s'", s);
adam@1367	2757 }
adamc@682	2758 return r;
adamc@682	2759 } else
adamc@682	2760 return "<Invalid time>";
adamc@682	2761 }
adamc@682	2762
adamc@682	2763 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2764 size_t len;
adamc@439	2765 char *r;
adam@1392	2766 struct tm stm = {};
adam@1392	2767 stm.tm_isdst = -1;
adamc@439	2768
adam@1365	2769 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2770 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2771 r = ctx->heap.front;
adamc@439	2772 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2773 ctx->heap.front += len+1;
adamc@439	2774 return r;
adamc@439	2775 } else
adamc@439	2776 return "<Invalid time>";
adamc@439	2777 }
adamc@439	2778
adam@1364	2779 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2780 size_t len;
adam@1364	2781 char *r;
adam@1392	2782 struct tm stm = {};
adam@1392	2783 stm.tm_isdst = -1;
adam@1364	2784
adam@1365	2785 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2786 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2787 r = ctx->heap.front;
adam@1365	2788 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2789 ctx->heap.front += len;
adam@1365	2790 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2791 ctx->heap.front += 8;
adam@1364	2792 return r;
adam@1364	2793 } else
adam@1364	2794 return "<Invalid time>";
adam@1364	2795 }
adam@1364	2796
adamc@467	2797 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2798 if (t == NULL)
adamc@467	2799 return "NULL";
adamc@467	2800 else
adamc@467	2801 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2802 }
adamc@467	2803
adamc@311	2804 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2805 static uw_Basis_int true = 1;
adamc@311	2806 static uw_Basis_int false = 0;
adamc@282	2807
adamc@311	2808 if (b == uw_Basis_False)
adamc@282	2809 return (char *)&false;
adamc@282	2810 else
adamc@282	2811 return (char *)&true;
adamc@282	2812 }
adamc@284	2813
adamc@311	2814 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2815 int len;
adamc@284	2816 char *r;
adamc@284	2817
adamc@311	2818 uw_check_heap(ctx, INTS_MAX);
adamc@666	2819 r = ctx->heap.front;
adamc@284	2820 sprintf(r, "%lld%n", n, &len);
adamc@666	2821 ctx->heap.front += len+1;
adamc@284	2822 return r;
adamc@284	2823 }
adamc@285	2824
adamc@311	2825 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2826 int len;
adamc@285	2827 char *r;
adamc@285	2828
adamc@311	2829 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2830 r = ctx->heap.front;
adamc@285	2831 sprintf(r, "%g%n", n, &len);
adamc@666	2832 ctx->heap.front += len+1;
adamc@285	2833 return r;
adamc@285	2834 }
adamc@285	2835
adamc@821	2836 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2837 char *r = uw_malloc(ctx, 2);
adamc@821	2838 r[0] = ch;
adamc@821	2839 r[1] = 0;
adamc@821	2840 return r;
adamc@821	2841 }
adamc@821	2842
adamc@311	2843 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2844 if (b == uw_Basis_False)
adamc@285	2845 return "False";
adamc@285	2846 else
adamc@285	2847 return "True";
adamc@285	2848 }
adamc@288	2849
adam@1359	2850 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2851 size_t len;
adam@1352	2852 char *r;
adam@1392	2853 struct tm stm = {};
adam@1392	2854 stm.tm_isdst = -1;
adam@1352	2855
adam@1365	2856 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2857 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2858 r = ctx->heap.front;
adam@1352	2859 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2860 ctx->heap.front += len+1;
adam@1352	2861 return r;
adam@1352	2862 } else
adam@1352	2863 return "<Invalid time>";
adam@1352	2864 }
adam@1352	2865
adam@1629	2866 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2867 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2868 }
adam@1629	2869
adamc@311	2870 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2871 char *endptr;
adamc@311	2872 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2873
adamc@288	2874 if (s != '\0' && endptr == '\0') {
adamc@311	2875 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2876 *r = n;
adamc@288	2877 return r;
adamc@288	2878 } else
adamc@288	2879 return NULL;
adamc@288	2880 }
adamc@289	2881
adamc@311	2882 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2883 char *endptr;
adamc@311	2884 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2885
adamc@289	2886 if (s != '\0' && endptr == '\0') {
adamc@311	2887 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2888 *r = n;
adamc@289	2889 return r;
adamc@289	2890 } else
adamc@289	2891 return NULL;
adamc@289	2892 }
adamc@289	2893
adamc@821	2894 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2895 if (s[0] == 0) {
adamc@821	2896 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2897 r[0] = 0;
adamc@821	2898 return r;
adamc@821	2899 } else if (s[1] != 0)
adamc@821	2900 return NULL;
adamc@821	2901 else {
adamc@821	2902 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2903 r[0] = s[0];
adamc@821	2904 return r;
adamc@821	2905 }
adamc@821	2906 }
adamc@821	2907
adamc@311	2908 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2909 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2910 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2911
adamc@289	2912 if (!strcasecmp (s, "True"))
adamc@289	2913 return &true;
adamc@289	2914 else if (!strcasecmp (s, "False"))
adamc@289	2915 return &false;
adamc@289	2916 else
adamc@289	2917 return NULL;
adamc@289	2918 }
adamc@292	2919
adamc@436	2920 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2921 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2922 struct tm stm = {};
adam@1392	2923 stm.tm_isdst = -1;
adamc@436	2924
adamc@439	2925 if (dot) {
adamc@439	2926 *dot = 0;
adamc@439	2927 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2928 *dot = '.';
adamc@439	2929 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2930 r->seconds = mktime(&stm);
adam@1365	2931 r->microseconds = 0;
adamc@439	2932 return r;
adamc@439	2933 }
adamc@439	2934 else {
adamc@439	2935 *dot = '.';
adamc@439	2936 return NULL;
adamc@439	2937 }
adamc@436	2938 }
adamc@439	2939 else {
adam@2072	2940 if (strptime(s, ctx->app->time_format, &stm) == end) {
adamc@439	2941 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2942 r->seconds = mktime(&stm);
adam@1365	2943 r->microseconds = 0;
adamc@439	2944 return r;
adam@2072	2945 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@2072	2946 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@2072	2947 r->seconds = mktime(&stm);
adam@2072	2948 r->microseconds = 0;
adam@2072	2949 return r;
adam@2072	2950 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2951 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2952 r->seconds = mktime(&stm);
adam@1365	2953 r->microseconds = 0;
adamc@439	2954 return r;
adam@1632	2955 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2956 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2957 r->seconds = mktime(&stm);
adam@1632	2958 r->microseconds = 0;
adam@1632	2959 return r;
adamc@439	2960 }
adamc@439	2961 else
adamc@439	2962 return NULL;
adamc@439	2963 }
adamc@436	2964 }
adamc@436	2965
adam@1352	2966 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2967 char *end = strchr(s, 0);
adam@1374	2968 struct tm stm = {};
adam@1392	2969 stm.tm_isdst = -1;
adam@1352	2970
adam@1352	2971 if (strptime(s, fmt, &stm) == end) {
adam@1352	2972 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2973 r->seconds = mktime(&stm);
adam@1365	2974 r->microseconds = 0;
adam@1352	2975 return r;
adam@1352	2976 }
adam@1352	2977 else
adam@1352	2978 return NULL;
adam@1352	2979 }
adam@1352	2980
adamc@311	2981 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2982 char *endptr;
adamc@311	2983 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2984
adamc@292	2985 if (s != '\0' && endptr == '\0')
adamc@292	2986 return n;
adamc@292	2987 else
adam@1444	2988 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2989 }
adamc@293	2990
adamc@682	2991 #include <errno.h>
adamc@682	2992
adamc@678	2993 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2994 unsigned long long n;
adamc@682	2995
adamc@682	2996 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2997 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	2998 else {
adamc@682	2999 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	3000 return ch;
adamc@682	3001 }
adamc@682	3002 }
adamc@682	3003
adamc@682	3004 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	3005 char *endptr;
adamc@682	3006 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	3007
adamc@678	3008 if (s != '\0' && endptr == '\0')
adamc@678	3009 return n;
adamc@678	3010 else
adam@1444	3011 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	3012 }
adamc@678	3013
adamc@311	3014 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	3015 char *endptr;
adamc@311	3016 uw_Basis_float n = strtod(s, &endptr);
adamc@293	3017
adamc@293	3018 if (s != '\0' && endptr == '\0')
adamc@293	3019 return n;
adamc@293	3020 else
adam@1444	3021 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3022 }
adamc@293	3023
adamc@821	3024 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	3025 if (s[0] == 0)
adamc@821	3026 return 0;
adamc@821	3027 else if (s[1] != 0)
adam@1444	3028 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	3029 else
adamc@821	3030 return s[0];
adamc@821	3031 }
adamc@821	3032
adamc@311	3033 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	3034 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	3035 return uw_Basis_True;
adamc@296	3036 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	3037 return uw_Basis_False;
adamc@293	3038 else
adam@1444	3039 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3040 }
adamc@436	3041
adam@1352	3042 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	3043 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	3044 struct tm stm = {};
adam@1392	3045 stm.tm_isdst = -1;
adam@1352	3046
adam@1352	3047 if (dot) {
adam@1352	3048 *dot = 0;
adam@1352	3049 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	3050 *dot = '.';
adam@1410	3051 char usec[] = "000000";
adam@1410	3052 int len = strlen(dot+1);
adam@1410	3053 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	3054 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	3055 return r;
adam@1352	3056 }
adam@1352	3057 else {
adam@1352	3058 *dot = '.';
adam@1444	3059 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3060 }
adam@1352	3061 }
adam@1352	3062 else {
adam@1352	3063 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3064 uw_Basis_time r = { mktime(&stm) };
adam@1365	3065 return r;
adam@1352	3066 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3067 uw_Basis_time r = { mktime(&stm) };
adam@1365	3068 return r;
adam@1352	3069 } else
adam@1444	3070 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3071 }
adam@1352	3072 }
adam@1352	3073
adamc@436	3074 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	3075 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	3076 struct tm stm = {};
adam@1392	3077 stm.tm_isdst = -1;
adamc@436	3078
adamc@438	3079 if (dot) {
adamc@438	3080 *dot = 0;
adamc@438	3081 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	3082 *dot = '.';
adam@1365	3083 {
adam@1365	3084 uw_Basis_time r = { mktime(&stm) };
adam@1365	3085 return r;
adam@1365	3086 }
adamc@438	3087 }
adamc@438	3088 else {
adamc@438	3089 *dot = '.';
adam@1444	3090 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3091 }
adamc@438	3092 }
adamc@438	3093 else {
adam@2072	3094 if (strptime(s, ctx->app->time_format, &stm) == end) {
adam@2072	3095 uw_Basis_time r = { mktime(&stm) };
adam@2072	3096 return r;
adam@2072	3097 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3098 uw_Basis_time r = { mktime(&stm) };
adam@1365	3099 return r;
adam@1365	3100 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3101 uw_Basis_time r = { mktime(&stm) };
adam@1365	3102 return r;
adam@1632	3103 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3104 uw_Basis_time r = { mktime(&stm) };
adam@1632	3105 return r;
adam@1365	3106 } else
adam@1444	3107 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3108 }
adamc@436	3109 }
adamc@457	3110
adam@1352	3111 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3112 char *end = strchr(s, 0);
adamc@939	3113 struct tm stm = {};
adam@1392	3114 stm.tm_isdst = -1;
adamc@939	3115
adam@1365	3116 if (strptime(s, fmt, &stm) == end) {
adam@1365	3117 uw_Basis_time r = { mktime(&stm) };
adam@1365	3118 return r;
adam@1365	3119 } else
adam@1444	3120 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3121 }
adamc@939	3122
adamc@742	3123 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3124 char *r = ctx->heap.front;
adamc@742	3125 uw_Basis_blob b = {len, r};
adamc@742	3126
adamc@742	3127 uw_check_heap(ctx, len);
adamc@742	3128
adam@1992	3129 if (s[0] == '\\' && s[1] == 'x') {
adam@1992	3130 s += 2;
adam@1992	3131
adam@1992	3132 while (*s) {
adam@1992	3133 int n;
adam@1992	3134 sscanf(s, "%02x", &n);
adam@1992	3135 *r++ = n;
adam@1992	3136 s += 2;
adam@1992	3137 }
adam@1992	3138 } else {
adam@1992	3139 while (*s) {
adam@1992	3140 if (s[0] == '\\') {
adam@1992	3141 if (s[1] == '\\') {
adam@1992	3142 *r++ = '\\';
adam@1992	3143 s += 2;
adam@1992	3144 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adam@1992	3145 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adam@1992	3146 s += 4;
adam@1992	3147 }
adam@1992	3148 else {
adam@1992	3149 *r++ = '\\';
adam@1992	3150 ++s;
adam@1992	3151 }
adam@1992	3152 } else {
adam@1992	3153 *r++ = s[0];
adamc@742	3154 ++s;
adamc@742	3155 }
adamc@742	3156 }
adamc@742	3157 }
adamc@742	3158
adamc@742	3159 b.size = r - ctx->heap.front;
adamc@742	3160 ctx->heap.front = r;
adam@1992	3161
adamc@742	3162 return b;
adamc@742	3163 }
adamc@742	3164
adam@1402	3165 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3166
adamc@463	3167 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3168 int len = strlen(c);
adamc@854	3169 char *p = ctx->outHeaders.start;
adamc@474	3170
adamc@1134	3171 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3172 char *p2;
adamc@474	3173 p += 13;
adamc@474	3174 p2 = strchr(p, '=');
adamc@474	3175
adamc@474	3176 if (p2) {
adamc@474	3177 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3178
adamc@474	3179 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3180 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3181 return NULL;
adamc@1052	3182 else {
adamc@1052	3183 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3184 memcpy(ret, p2+1, sz);
adamc@1052	3185 ret[sz] = 0;
adamc@1052	3186 return ret;
adamc@1052	3187 }
adamc@474	3188 }
adamc@474	3189 }
adamc@474	3190 }
adamc@463	3191
adamc@1134	3192 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3193 char *p2;
adamc@1051	3194
adamc@854	3195 while (1) {
adamc@1051	3196 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3197 if ((p2 = strchr(p, ';'))) {
adamc@1051	3198 size_t n = p2 - (p + len);
adamc@1051	3199 char *r = uw_malloc(ctx, n);
adamc@1051	3200 memcpy(r, p + 1 + len, n-1);
adamc@1051	3201 r[n-1] = 0;
adamc@1051	3202 return r;
adamc@1051	3203 } else
adamc@1051	3204 return p + 1 + len;
adamc@1134	3205 } else if ((p = strchr(p, ';')))
adamc@854	3206 p += 2;
adamc@463	3207 else
adamc@463	3208 return NULL;
adamc@463	3209 }
adamc@463	3210 }
adamc@792	3211
adamc@792	3212 return NULL;
adamc@457	3213 }
adamc@462	3214
adam@1877	3215 static void set_cookie(uw_context ctx) {
adam@1877	3216 if (ctx->usedSig)
adam@1877	3217 ctx->needsResig = 1;
adam@1877	3218 }
adam@1877	3219
adamc@1050	3220 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	3221 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3222 uw_write_header(ctx, c);
adamc@462	3223 uw_write_header(ctx, "=");
adamc@462	3224 uw_write_header(ctx, v);
adamc@466	3225 uw_write_header(ctx, "; path=");
adamc@466	3226 uw_write_header(ctx, prefix);
adamc@1050	3227 if (expires) {
adamc@1050	3228 char formatted[30];
adam@1392	3229 struct tm tm = {};
adam@1392	3230 tm.tm_isdst = -1;
adamc@1050	3231
adam@1365	3232 gmtime_r(&expires->seconds, &tm);
adamc@1050	3233
adamc@1050	3234 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3235
adamc@1050	3236 uw_write_header(ctx, "; expires=");
adamc@1050	3237 uw_write_header(ctx, formatted);
adamc@1050	3238 }
adamc@1050	3239 if (secure)
adamc@1050	3240 uw_write_header(ctx, "; secure");
adamc@462	3241 uw_write_header(ctx, "\r\n");
adam@1877	3242 set_cookie(ctx);
adamc@462	3243
adamc@462	3244 return uw_unit_v;
adamc@462	3245 }
adamc@667	3246
adamc@1050	3247 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3248 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3249 uw_write_header(ctx, c);
adamc@1050	3250 uw_write_header(ctx, "=; path=");
adamc@1050	3251 uw_write_header(ctx, prefix);
adamc@1052	3252 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3253 set_cookie(ctx);
adamc@1050	3254
adamc@1050	3255 return uw_unit_v;
adamc@1050	3256 }
adamc@1050	3257
adamc@1113	3258 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3259
adamc@682	3260 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3261 unsigned i;
adamc@682	3262 delta *d;
adamc@671	3263
adamc@682	3264 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3265 if (ctx->deltas[i].client == client)
adamc@682	3266 return &ctx->deltas[i];
adamc@671	3267
adamc@682	3268 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3269 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3270 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3271
adamc@682	3272 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3273 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3274 }
adamc@671	3275
adamc@682	3276 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3277 d->client = client;
adam@1369	3278 uw_buffer_reset(&d->msgs);
adamc@682	3279 return d;
adamc@671	3280 }
adamc@671	3281
adamc@668	3282 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3283 if (ctx->client == NULL)
adamc@682	3284 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3285
adamc@682	3286 return new_channel(ctx->client);
adamc@668	3287 }
adamc@668	3288
adamc@668	3289 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3290 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3291 size_t len;
adamc@682	3292 int preLen;
adamc@682	3293 char pre[INTS_MAX + 2];
adamc@668	3294
adamc@682	3295 len = strlen(msg);
adamc@682	3296
adamc@682	3297 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3298
adam@1369	3299 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3300 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3301 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3302
adamc@671	3303 return uw_unit_v;
adamc@668	3304 }
adamc@671	3305
adam@1327	3306 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3307 int i;
adamc@1131	3308 cleanup *cl;
adamc@1131	3309
adamc@1131	3310 if (ctx->client)
adamc@1131	3311 release_client(ctx->client);
adamc@1131	3312
adamc@1131	3313 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3314 cl->func(cl->arg);
adamc@1131	3315
adamc@1131	3316 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3317
adamc@1131	3318 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3319 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3320 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3321
adamc@1131	3322 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3323 if (ctx->transactionals[i].free)
adam@1327	3324 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3325
adam@1941	3326 if (ctx->app && ctx->transaction_started) {
adam@1941	3327 ctx->transaction_started = 0;
adam@1941	3328 return ctx->app->db_rollback(ctx);
adam@1941	3329 } else
adam@1941	3330 return 0;
adamc@1131	3331 }
adamc@1131	3332
adam@1956	3333 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	3334 const char uw_begin_html5[] = "<!DOCTYPE html><html>";
adam@1728	3335
adam@1877	3336 extern int uw_hash_blocksize;
adam@1877	3337
adam@1877	3338 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3339
adam@1877	3340 static char find_sig(char haystack) {
adam@1877	3341 int i;
adam@1877	3342 char *s = strstr(haystack, sig_intro);
adam@1877	3343
adam@1877	3344 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3345 return NULL;
phurst@1981	3346
adam@1877	3347 s += sizeof sig_intro - 1;
adam@1877	3348
adam@1877	3349 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3350 if (!isxdigit((int)s[i]))
adam@1877	3351 return NULL;
adam@1877	3352
adam@1877	3353 if (s[i] != '"')
adam@1877	3354 return NULL;
adam@1877	3355
adam@1877	3356 return s;
adam@1877	3357 }
adam@1877	3358
adam@2033	3359 static pthread_mutex_t message_send_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2033	3360
adam@1938	3361 int uw_commit(uw_context ctx) {
adamc@1104	3362 int i;
adam@1877	3363 char *sig;
adamc@1104	3364
adamc@1131	3365 if (uw_has_error(ctx)) {
adam@1327	3366 uw_rollback(ctx, 0);
adam@1938	3367 return 0;
adamc@1131	3368 }
adamc@1131	3369
adamc@1104	3370 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3371 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3372 if (ctx->transactionals[i].commit) {
adamc@1083	3373 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3374 if (uw_has_error(ctx)) {
adam@1327	3375 uw_rollback(ctx, 0);
adam@1938	3376 return 0;
adamc@1131	3377 }
adamc@1131	3378 }
adamc@771	3379
adam@2033	3380 // Here's an important lock to provide the abstraction that all messages from one transaction are sent as an atomic unit.
adam@2033	3381 if (ctx->used_deltas > 0)
adam@2033	3382 pthread_mutex_lock(&message_send_mutex);
adam@2033	3383
adam@2000	3384 if (ctx->transaction_started) {
adam@2000	3385 int code = ctx->app->db_commit(ctx);
adam@2000	3386
adam@2000	3387 if (code) {
adam@2033	3388 if (ctx->used_deltas > 0)
adam@2033	3389 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3390
adam@2000	3391 if (ctx->client)
adam@2000	3392 release_client(ctx->client);
adam@2000	3393
adam@2000	3394 if (code == -1) {
adam@2000	3395 // This case is for a serialization failure, which is not really an "error."
adam@2000	3396 // The transaction will restart, so we should rollback any transactionals
adam@2000	3397 // that triggered above.
adam@2000	3398
adam@2000	3399 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3400 if (ctx->transactionals[i].rollback != NULL)
adam@2000	3401 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2000	3402
adam@2000	3403 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3404 if (ctx->transactionals[i].free)
adam@2000	3405 ctx->transactionals[i].free(ctx->transactionals[i].data, 1);
adam@2000	3406
grrwlf@2030	3407 return 1;
adam@2000	3408 }
adam@2000	3409
adam@2000	3410 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3411 if (ctx->transactionals[i].free)
adam@2000	3412 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3413
adam@2000	3414 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@2000	3415 return 0;
adam@2000	3416 }
adam@2000	3417 }
adam@2000	3418
adamc@1104	3419 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3420 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3421 if (ctx->transactionals[i].commit) {
adamc@1083	3422 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3423 if (uw_has_error(ctx)) {
adam@2033	3424 if (ctx->used_deltas > 0)
adam@2033	3425 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3426
adam@2033	3427 if (ctx->client)
adam@2033	3428 release_client(ctx->client);
adam@2033	3429
adam@2033	3430 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3431 if (ctx->transactionals[i].rollback != NULL)
adam@2033	3432 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2033	3433
adam@2033	3434 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3435 if (ctx->transactionals[i].free)
adam@2033	3436 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3437
adam@1938	3438 return 0;
adamc@1131	3439 }
adamc@1131	3440 }
adamc@1131	3441
adamc@682	3442 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3443 delta *d = &ctx->deltas[i];
adamc@682	3444 client *c = find_client(d->client);
adamc@682	3445
adam@1551	3446 assert (c != NULL);
adam@1551	3447 assert(c->mode == USED);
adamc@682	3448
adam@1447	3449 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3450 }
adamc@682	3451
adam@2033	3452 if (ctx->used_deltas > 0)
adam@2033	3453 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3454
adamc@682	3455 if (ctx->client)
adamc@685	3456 release_client(ctx->client);
adamc@771	3457
adamc@1104	3458 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3459 if (ctx->transactionals[i].free)
adam@1327	3460 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3461
vshabanoff@1726	3462 uw_check(ctx, 1);
vshabanoff@1726	3463 *ctx->page.front = 0;
adam@1413	3464
adam@1956	3465 if (!ctx->returning_indirectly
adam@1956	3466 && (ctx->app->is_html5
adam@1956	3467 ? !strncmp(ctx->page.start, uw_begin_html5, sizeof uw_begin_html5 - 1)
adam@1956	3468 : !strncmp(ctx->page.start, uw_begin_xhtml, sizeof uw_begin_xhtml - 1))) {
adam@1728	3469 char *s;
adam@1728	3470
adam@1728	3471 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1956	3472 s = ctx->page.start + (ctx->app->is_html5 ? sizeof uw_begin_html5 - 1 : sizeof uw_begin_xhtml - 1);
adam@1728	3473 s = strchr(s, '<');
adam@1728	3474 if (s == NULL) {
adam@1728	3475 // Weird. Document has no tags!
adam@1728	3476
adam@1728	3477 uw_write(ctx, "<head></head><body></body>");
adam@1728	3478 uw_check(ctx, 1);
adam@1728	3479 *ctx->page.front = 0;
adam@1728	3480 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3481 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3482
adam@1729	3483 // Any freeform JavaScript to include?
adam@1729	3484 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3485 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3486 size_t lenP = lenH + 40 + len;
adam@1729	3487 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3488
adam@1729	3489 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3490 start += ctx->page.start - oldPage;
adam@1729	3491 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3492 ctx->page.front += lenP;
adam@1729	3493 memcpy(start, ctx->script_header, lenH);
adam@1729	3494 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3495 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3496 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3497 } else {
adam@1729	3498 size_t lenH = strlen(ctx->script_header);
adam@1729	3499 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3500
adam@1729	3501 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3502 start += ctx->page.start - oldPage;
adam@1729	3503 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3504 ctx->page.front += lenH;
adam@1729	3505 memcpy(start, ctx->script_header, lenH);
adam@1729	3506 }
adam@1728	3507 } else {
adam@1728	3508 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3509
adam@1729	3510 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3511 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3512 size_t lenP = lenH + 53 + len;
adam@1729	3513 char start = s, oldPage = ctx->page.start;
adam@1729	3514
adam@1729	3515 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3516 start += ctx->page.start - oldPage;
adam@1729	3517 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3518 ctx->page.front += lenP;
adam@1729	3519 memcpy(start, "<head>", 6);
adam@1729	3520 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3521 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3522 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3523 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3524 } else {
adam@1729	3525 size_t lenH = strlen(ctx->script_header);
adam@1729	3526 size_t lenP = lenH + 13;
adam@1729	3527 char start = s, oldPage = ctx->page.start;
adam@1729	3528
adam@1729	3529 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3530 start += ctx->page.start - oldPage;
adam@1729	3531 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3532 ctx->page.front += lenP;
adam@1729	3533 memcpy(start, "<head>", 6);
adam@1729	3534 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3535 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3536 }
adamc@916	3537 }
adamc@916	3538 }
adam@1877	3539
adam@1877	3540 if (ctx->needsResig) {
adam@1877	3541 sig = find_sig(ctx->page.start);
adam@1877	3542 if (sig) {
adam@1877	3543 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3544
adam@1877	3545 do {
adam@1877	3546 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3547 sig = find_sig(sig);
adam@1877	3548 } while (sig);
adam@1877	3549 }
adam@1877	3550 }
adam@1938	3551
adam@1938	3552 return 0;
adamc@671	3553 }
adamc@671	3554
adamc@683	3555
adamc@1113	3556 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3557
adam@2001	3558 int uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3559 uw_callback_with_retry free) {
adamc@771	3560 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3561 if (ctx->used_transactionals+1 > uw_transactionals_max)
adam@2001	3562 // Exceeded limit on number of transactionals.
adam@2001	3563 return -1;
adamc@1084	3564 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3565 ++ctx->n_transactionals;
adamc@771	3566 }
adamc@771	3567
adamc@771	3568 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3569 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3570 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3571 ctx->transactionals[ctx->used_transactionals++].free = free;
adam@2001	3572
adam@2001	3573 return 0;
adamc@771	3574 }
adamc@771	3575
adamc@683	3576
adamc@683	3577 // "Garbage collection"
adamc@683	3578
adamc@1121	3579 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3580 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3581
adamc@1121	3582 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3583 int r = setjmp(ctx->jmp_buf);
adamc@683	3584
adamc@1121	3585 if (r == 0)
adamc@1121	3586 uw_do_expunge(ctx, cli, data);
adamc@1121	3587 else
adamc@1121	3588 ctx->app->db_rollback(ctx);
adamc@1121	3589
adamc@1121	3590 uw_post_expunge(ctx, data);
adamc@683	3591
adamc@683	3592 return r;
adamc@683	3593 }
adamc@683	3594
adamc@683	3595 void uw_prune_clients(uw_context ctx) {
adamc@683	3596 client c, next, *prev = NULL;
adamc@683	3597 time_t cutoff;
adamc@683	3598
adamc@1094	3599 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3600
adamc@683	3601 pthread_mutex_lock(&clients_mutex);
adam@1707	3602 pruning_thread = pthread_self();
adam@1707	3603 pruning_thread_initialized = 1;
adamc@683	3604
adamc@683	3605 for (c = clients_used; c; c = next) {
adamc@683	3606 next = c->next;
adamc@683	3607 pthread_mutex_lock(&c->lock);
adamc@685	3608 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3609 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3610 if (prev)
adamc@683	3611 prev->next = next;
adamc@683	3612 else
adamc@683	3613 clients_used = next;
adamc@683	3614 while (fk == UNLIMITED_RETRY) {
adam@1941	3615 uw_reset(ctx);
adamc@1121	3616 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3617 if (fk == UNLIMITED_RETRY)
adamc@684	3618 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3619 }
adamc@684	3620 if (fk == SUCCESS)
adamc@684	3621 free_client(c);
adamc@1121	3622 else
adamc@856	3623 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3624 }
adamc@683	3625 else
adamc@683	3626 prev = c;
adamc@683	3627 pthread_mutex_unlock(&c->lock);
adamc@683	3628 }
adamc@683	3629
adamc@683	3630 pthread_mutex_unlock(&clients_mutex);
adamc@683	3631 }
adamc@687	3632
adamc@687	3633 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3634 int r = setjmp(ctx->jmp_buf);
adamc@687	3635
adamc@687	3636 if (r == 0) {
adam@1936	3637 uw_ensure_transaction(ctx);
adamc@1094	3638 ctx->app->initializer(ctx);
adamc@1094	3639 if (ctx->app->db_commit(ctx))
adamc@687	3640 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3641 }
adamc@687	3642
adamc@687	3643 return r;
adamc@687	3644 }
adamc@717	3645
adamc@1065	3646 static int url_bad(uw_Basis_string s) {
adamc@1065	3647 for (; *s; ++s)
adamc@1153	3648 if (!isgraph((int)*s))
adamc@1065	3649 return 1;
adamc@1065	3650
adamc@1065	3651 return 0;
adamc@1065	3652 }
adamc@1065	3653
adamc@717	3654 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3655 if (url_bad(s))
adamc@1065	3656 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3657 if (ctx->app->check_url(s))
adamc@770	3658 return s;
adamc@770	3659 else
adamc@770	3660 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3661 }
adamc@734	3662
adamc@770	3663 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3664 if (url_bad(s))
adamc@1065	3665 return NULL;
adamc@1094	3666 if (ctx->app->check_url(s))
adamc@770	3667 return s;
adamc@770	3668 else
adamc@770	3669 return NULL;
adamc@770	3670 }
adamc@770	3671
adam@1465	3672 static int mime_format(const char *s) {
adamc@770	3673 for (; *s; ++s)
grrwlf@2024	3674 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.' && *s != '+')
adamc@770	3675 return 0;
adamc@770	3676
adamc@770	3677 return 1;
adamc@770	3678 }
adamc@770	3679
adamc@741	3680 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3681 if (!mime_format(s))
adamc@770	3682 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3683
adamc@1094	3684 if (ctx->app->check_mime(s))
adamc@770	3685 return s;
adamc@770	3686 else
adamc@770	3687 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3688 }
adamc@770	3689
adamc@770	3690 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3691 if (!mime_format(s))
adamc@770	3692 return NULL;
adamc@770	3693
adamc@1094	3694 if (ctx->app->check_mime(s))
adamc@770	3695 return s;
adamc@770	3696 else
adamc@770	3697 return NULL;
adamc@741	3698 }
adamc@741	3699
adam@1465	3700 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3701 if (!mime_format(s))
adam@1465	3702 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3703
adam@1465	3704 if (ctx->app->check_requestHeader(s))
adam@1465	3705 return s;
adam@1465	3706 else
adam@1465	3707 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3708 }
adam@1465	3709
adam@1465	3710 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3711 if (!mime_format(s))
adam@1465	3712 return NULL;
adam@1465	3713
adam@1465	3714 if (ctx->app->check_requestHeader(s))
adam@1465	3715 return s;
adam@1465	3716 else
adam@1465	3717 return NULL;
adam@1465	3718 }
adam@1465	3719
adam@1465	3720 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3721 if (!mime_format(s))
adam@1465	3722 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3723
adam@1465	3724 if (ctx->app->check_responseHeader(s))
adam@1465	3725 return s;
adam@1465	3726 else
adam@1465	3727 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3728 }
adam@1465	3729
adam@1799	3730 static int envVar_format(const char *s) {
adam@1799	3731 for (; *s; ++s)
adam@1799	3732 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3733 return 0;
adam@1799	3734
adam@1799	3735 return 1;
adam@1799	3736 }
adam@1799	3737
adam@1465	3738 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3739 if (!envVar_format(s))
adam@1465	3740 return NULL;
adam@1465	3741
adam@1465	3742 if (ctx->app->check_responseHeader(s))
adam@1465	3743 return s;
adam@1465	3744 else
adam@1465	3745 return NULL;
adam@1465	3746 }
adam@1465	3747
adam@1799	3748 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3749 if (!envVar_format(s))
adam@1799	3750 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3751
adam@1799	3752 if (ctx->app->check_envVar(s))
adam@1799	3753 return s;
adam@1799	3754 else
adam@1799	3755 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3756 }
adam@1799	3757
adam@1799	3758 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3759 if (!mime_format(s))
adam@1799	3760 return NULL;
adam@1799	3761
adam@1799	3762 if (ctx->app->check_envVar(s))
adam@1799	3763 return s;
adam@1799	3764 else
adam@1799	3765 return NULL;
adam@1799	3766 }
adam@1799	3767
adam@1465	3768 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3769 return uw_Basis_requestHeader(ctx, name);
adam@1465	3770 }
adam@1465	3771
adam@1465	3772 static int mime_value_format(const char *s) {
adam@1465	3773 for (; *s; ++s)
adam@1465	3774 if (s == '\r' \|\| s == '\n')
adam@1465	3775 return 0;
adam@1465	3776
adam@1465	3777 return 1;
adam@1465	3778 }
adam@1465	3779
adam@1465	3780 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3781 if (!mime_value_format(value))
adam@1465	3782 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3783
adam@1465	3784 uw_write_header(ctx, name);
adam@1465	3785 uw_write_header(ctx, ": ");
adam@1465	3786 uw_write_header(ctx, value);
adam@1465	3787 uw_write_header(ctx, "\r\n");
adam@1465	3788
adam@1465	3789 return uw_unit_v;
adam@1465	3790 }
adam@1465	3791
adam@1799	3792 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1993	3793 if (ctx->get_env)
adam@1993	3794 return ctx->get_env(ctx->get_env_data, name);
adam@1993	3795 else
adam@1994	3796 return getenv(name);
adam@1799	3797 }
adam@1799	3798
adamc@734	3799 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3800 return s ? s : "";
adamc@734	3801 }
adamc@734	3802
adamc@734	3803 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3804 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3805 int i;
phurst@1981	3806
adamc@734	3807 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3808 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3809
adamc@734	3810 return r;
adamc@734	3811 }
adamc@734	3812
adam@1512	3813 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3814 * optimizations that would enable timing attacks. See:
adam@1512	3815 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3816 */
adam@1512	3817 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3818 int i, x = 0, len1 = strlen(s1);
adam@1512	3819
adam@1512	3820 if (len1 != strlen(s2)) return 0;
adam@1512	3821
adam@1512	3822 for (i = 0; i < len1; ++i) {
adam@1512	3823 __asm__ __volatile__ ("");
adam@1512	3824 x \|= s1[i] ^ s2[i];
adam@1512	3825 }
adam@1512	3826
adam@1512	3827 return x == 0;
adam@1512	3828 }
adam@1512	3829
adamc@734	3830 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3831 ctx->usedSig = 1;
adamc@1094	3832 return ctx->app->cookie_sig(ctx);
adamc@734	3833 }
adamc@737	3834
adamc@737	3835 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3836 return f.name;
adamc@737	3837 }
adamc@737	3838
adamc@740	3839 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3840 return f.type;
adamc@740	3841 }
adamc@740	3842
adamc@745	3843 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3844 return b.size;
adamc@745	3845 }
adamc@745	3846
adamc@1119	3847 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3848 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3849
adamc@1119	3850 return b;
adamc@1119	3851 }
adamc@1119	3852
adamc@737	3853 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3854 return f.data;
adamc@737	3855 }
adamc@741	3856
adam@1347	3857 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3858 return pb.type;
adam@1347	3859 }
adam@1347	3860
adam@1347	3861 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3862 return pb.data;
adam@1347	3863 }
adam@1347	3864
adam@1471	3865 static char *old_headers(uw_context ctx) {
adam@1471	3866 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3867 return NULL;
adam@1471	3868 else {
adam@1471	3869 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3870
adam@1471	3871 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3872 return NULL;
adam@1471	3873 else {
adam@1471	3874 s = strchr(s+15, '\n');
adam@1471	3875 if (s == NULL)
adam@1471	3876 return NULL;
adam@1471	3877 else
adam@1471	3878 return uw_strdup(ctx, s+1);
adam@1471	3879 }
adam@1471	3880 }
adam@1471	3881 }
adam@1471	3882
adamc@741	3883 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3884 cleanup *cl;
adamc@741	3885 int len;
adam@1471	3886 char *oldh;
adamc@741	3887
adam@1451	3888 if (!ctx->allowed_to_return_indirectly)
adam@1451	3889 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3890
adamc@1065	3891 ctx->returning_indirectly = 1;
adam@1471	3892 oldh = old_headers(ctx);
adam@1369	3893 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3894 uw_buffer_reset(&ctx->page);
adamc@741	3895
adamc@856	3896 uw_write_header(ctx, on_success);
adamc@856	3897 uw_write_header(ctx, "Content-Type: ");
adamc@741	3898 uw_write_header(ctx, mimeType);
adam@1934	3899 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369	3900 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3901 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3902 ctx->outHeaders.front += len;
adamc@1066	3903 uw_write_header(ctx, "\r\n");
adam@1471	3904 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3905
adam@1369	3906 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3907
adamc@741	3908 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3909 cl->func(cl->arg);
adamc@741	3910
adamc@741	3911 ctx->cleanup_front = ctx->cleanup;
adamc@741	3912
adamc@1065	3913 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3914 }
adamc@1065	3915
adam@2046	3916 void uw_replace_page(uw_context ctx, const char *data, size_t size) {
adam@2046	3917 uw_buffer_reset(&ctx->page);
adam@2046	3918 ctx_uw_buffer_append(ctx, "page", &ctx->page, data, size);
adam@2046	3919 }
adam@2046	3920
adam@1932	3921 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932	3922 cleanup *cl;
adam@1932	3923 int len;
adam@1932	3924 char *oldh;
adam@1932	3925
adam@1932	3926 if (!ctx->allowed_to_return_indirectly)
adam@1932	3927 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932	3928
adam@1932	3929 ctx->returning_indirectly = 1;
adam@1932	3930 oldh = old_headers(ctx);
adam@1932	3931 uw_buffer_reset(&ctx->outHeaders);
adam@1932	3932
adam@1932	3933 uw_write_header(ctx, on_success);
adam@1932	3934 uw_write_header(ctx, "Content-Type: ");
adam@1932	3935 uw_write_header(ctx, mimeType);
adam@1934	3936 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932	3937 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932	3938 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932	3939 ctx->outHeaders.front += len;
adam@1932	3940 uw_write_header(ctx, "\r\n");
adam@1932	3941 if (oldh) uw_write_header(ctx, oldh);
adam@1932	3942
adam@1932	3943 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932	3944 cl->func(cl->arg);
adam@1932	3945
adam@1932	3946 ctx->cleanup_front = ctx->cleanup;
adam@1932	3947
adam@1932	3948 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932	3949 }
adam@1932	3950
adamc@1065	3951 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3952 cleanup *cl;
adamc@1066	3953 char *s;
adam@1471	3954 char *oldh;
adamc@1065	3955
adam@1451	3956 if (!ctx->allowed_to_return_indirectly)
adam@1451	3957 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3958
adamc@1065	3959 ctx->returning_indirectly = 1;
adam@1471	3960 oldh = old_headers(ctx);
adam@1369	3961 uw_buffer_reset(&ctx->page);
adam@1369	3962 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3963 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3964 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3965 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3966
adam@1409	3967 if (on_success[0])
adam@1409	3968 uw_write_header(ctx, on_redirect);
adam@1409	3969 else
adam@1409	3970 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3971 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3972 if (s) {
adamc@1066	3973 char *s2;
adam@1409	3974 if (s[0] == '\n') ++s;
adam@1409	3975 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3976 *s2 = 0;
adamc@1066	3977 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3978 uw_write_header(ctx, s);
adamc@1066	3979 uw_write_header(ctx, "\n");
adamc@1066	3980 }
adamc@1066	3981 }
adamc@1066	3982 }
adamc@1066	3983
adamc@1065	3984 uw_write_header(ctx, "Location: ");
adamc@1065	3985 uw_write_header(ctx, url);
adamc@1065	3986 uw_write_header(ctx, "\r\n\r\n");
adam@1471	3987 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	3988
adamc@1065	3989 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3990 cl->func(cl->arg);
adamc@1065	3991
adamc@1065	3992 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3993
adamc@1065	3994 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3995 }
adamc@874	3996
adamc@874	3997 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	3998 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	3999
adamc@874	4000 for (; *s; ++s) {
adamc@874	4001 if (s[0] == '\'') {
adamc@874	4002 *r++ = '\'';
adamc@874	4003 for (++s; *s; ++s) {
adamc@874	4004 if (s[0] == '\'') {
adamc@874	4005 *r++ = '\'';
adamc@874	4006 break;
adamc@874	4007 } else if (s[0] == '\\') {
adam@1467	4008 *r++ = '\\';
adam@1467	4009 *r++ = s[1];
adam@1467	4010 ++s;
adamc@874	4011 } else
adamc@874	4012 *r++ = s[0];
adamc@874	4013 }
adamc@874	4014 if (*s == 0) break;
adam@1467	4015 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	4016 s += 3;
adamc@874	4017 else
adamc@874	4018 *r++ = s[0];
adamc@874	4019 }
adamc@874	4020
adam@1467	4021 *r = 0;
adam@1467	4022 return ret;
adamc@874	4023 }
adamc@874	4024
adamc@922	4025 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	4026 va_list ap;
adamc@922	4027 size_t len = 1;
adamc@922	4028 char s, r, *s2;
phurst@1981	4029
adamc@922	4030 va_start(ap, ctx);
adamc@922	4031 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4032 len += strlen(s);
adamc@922	4033 va_end(ap);
adamc@922	4034
adamc@922	4035 r = uw_malloc(ctx, len);
adamc@922	4036 va_start(ap, ctx);
adamc@922	4037 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4038 while (*s)
adamc@922	4039 s2++ = s++;
adamc@922	4040 va_end(ap);
adamc@922	4041 *s2 = 0;
adamc@922	4042
adamc@922	4043 return r;
adamc@922	4044 }
adamc@1006	4045
adam@1365	4046 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	4047
adamc@1006	4048 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	4049 uw_Basis_time r = { time(NULL) };
adam@1365	4050 return r;
adamc@1006	4051 }
adamc@1061	4052
adam@1369	4053 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	4054 tm.seconds += n;
adam@1365	4055 return tm;
adamc@1138	4056 }
adamc@1138	4057
adam@1514	4058 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	4059 return difftime(tm2.seconds, tm1.seconds);
adam@1514	4060 }
adam@1514	4061
adam@1685	4062 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	4063 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	4064 }
adam@1685	4065
adam@1685	4066 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	4067 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	4068 }
adam@1685	4069
adam@1514	4070 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	4071 return tm.seconds;
adam@1514	4072 }
adam@1514	4073
phurst@1971	4074 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	4075 struct tm tm = { .tm_year = year - 1900, .tm_mon = month, .tm_mday = day,
adam@2015	4076 .tm_hour = hour, .tm_min = minute, .tm_sec = second,
adam@2015	4077 .tm_isdst = -1 };
phurst@1984	4078 uw_Basis_time r = { timelocal(&tm) };
phurst@1971	4079 return r;
phurst@1971	4080 }
phurst@1971	4081
phurst@1971	4082 uw_Basis_int uw_Basis_datetimeYear(uw_context ctx, uw_Basis_time time) {
phurst@1971	4083 struct tm tm;
phurst@1982	4084 localtime_r(&time.seconds, &tm);
phurst@1971	4085 return tm.tm_year + 1900;
phurst@1971	4086 }
phurst@1971	4087
phurst@1971	4088 uw_Basis_int uw_Basis_datetimeMonth(uw_context ctx, uw_Basis_time time) {
phurst@1971	4089 struct tm tm;
phurst@1982	4090 localtime_r(&time.seconds, &tm);
phurst@1971	4091 return tm.tm_mon;
phurst@1971	4092 }
phurst@1971	4093
phurst@1971	4094 uw_Basis_int uw_Basis_datetimeDay(uw_context ctx, uw_Basis_time time) {
phurst@1971	4095 struct tm tm;
phurst@1982	4096 localtime_r(&time.seconds, &tm);
phurst@1971	4097 return tm.tm_mday;
phurst@1971	4098 }
phurst@1971	4099
phurst@1971	4100 uw_Basis_int uw_Basis_datetimeHour(uw_context ctx, uw_Basis_time time) {
phurst@1971	4101 struct tm tm;
phurst@1982	4102 localtime_r(&time.seconds, &tm);
phurst@1971	4103 return tm.tm_hour;
phurst@1971	4104 }
phurst@1971	4105
phurst@1971	4106 uw_Basis_int uw_Basis_datetimeMinute(uw_context ctx, uw_Basis_time time) {
phurst@1971	4107 struct tm tm;
phurst@1982	4108 localtime_r(&time.seconds, &tm);
phurst@1971	4109 return tm.tm_min;
phurst@1971	4110 }
phurst@1971	4111
phurst@1971	4112 uw_Basis_int uw_Basis_datetimeSecond(uw_context ctx, uw_Basis_time time) {
phurst@1971	4113 struct tm tm;
phurst@1982	4114 localtime_r(&time.seconds, &tm);
phurst@1971	4115 return tm.tm_sec;
phurst@1971	4116 }
phurst@1971	4117
phurst@1973	4118 uw_Basis_int uw_Basis_datetimeDayOfWeek(uw_context ctx, uw_Basis_time time) {
phurst@1973	4119 struct tm tm;
phurst@1982	4120 localtime_r(&time.seconds, &tm);
phurst@1973	4121 return tm.tm_wday;
phurst@1973	4122 }
phurst@1971	4123
phurst@1971	4124
adamc@1061	4125 void uw_get_global(uw_context ctx, char name) {
adamc@1061	4126 int i;
adamc@1061	4127
adamc@1061	4128 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4129 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	4130 return ctx->globals[i].data;
adamc@1061	4131
adamc@1061	4132 return NULL;
adamc@1061	4133 }
adamc@1061	4134
adamc@1113	4135 size_t uw_globals_max = SIZE_MAX;
adamc@1113	4136
adamc@1061	4137 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	4138 int i;
adamc@1061	4139
adamc@1061	4140 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4141 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	4142 if (ctx->globals[i].free)
adamc@1061	4143 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	4144 ctx->globals[i].data = data;
adamc@1061	4145 ctx->globals[i].free = free;
adamc@1061	4146 return;
adamc@1061	4147 }
adamc@1089	4148
adamc@1113	4149 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	4150 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	4151
adamc@1061	4152 ++ctx->n_globals;
adamc@1061	4153 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	4154 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	4155 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	4156 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	4157 }
adamc@1061	4158
adamc@1061	4159 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	4160 return !!isalnum((int)c);
adamc@1061	4161 }
adamc@1061	4162
adamc@1061	4163 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	4164 return !!isalpha((int)c);
adamc@1061	4165 }
adamc@1061	4166
adamc@1061	4167 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	4168 return !!isblank((int)c);
adamc@1061	4169 }
adamc@1061	4170
adamc@1061	4171 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	4172 return !!iscntrl((int)c);
adamc@1061	4173 }
adamc@1061	4174
adamc@1061	4175 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4176 return !!isdigit((int)c);
adamc@1061	4177 }
adamc@1061	4178
adamc@1061	4179 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	4180 return !!isgraph((int)c);
adamc@1061	4181 }
adamc@1061	4182
adamc@1061	4183 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4184 return !!islower((int)c);
adamc@1061	4185 }
adamc@1061	4186
adamc@1061	4187 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	4188 return !!isprint((int)c);
adamc@1061	4189 }
adamc@1061	4190
adamc@1061	4191 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	4192 return !!ispunct((int)c);
adamc@1061	4193 }
adamc@1061	4194
adamc@1061	4195 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	4196 return !!isspace((int)c);
adamc@1061	4197 }
adamc@1063	4198
adamc@1061	4199 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4200 return !!isupper((int)c);
adamc@1061	4201 }
adamc@1061	4202
adamc@1061	4203 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4204 return !!isxdigit((int)c);
adamc@1061	4205 }
adamc@1061	4206
adamc@1061	4207 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4208 return tolower((int)c);
adamc@1061	4209 }
adamc@1061	4210
adamc@1061	4211 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4212 return toupper((int)c);
adamc@1061	4213 }
adamc@1066	4214
adamc@1128	4215 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	4216 return (unsigned char)c;
adamc@1128	4217 }
adamc@1128	4218
adamc@1128	4219 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	4220 return n;
adamc@1128	4221 }
adamc@1128	4222
adamc@1066	4223 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	4224 return ctx->current_url;
adamc@1066	4225 }
adamc@1066	4226
adamc@1066	4227 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	4228 ctx->current_url = s;
adamc@1066	4229 }
adamc@1114	4230
adamc@1114	4231 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	4232 ctx->deadline = n;
adamc@1114	4233 }
adamc@1114	4234
adamc@1114	4235 void uw_check_deadline(uw_context ctx) {
adamc@1114	4236 if (uw_time > ctx->deadline)
adamc@1114	4237 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	4238 }
adamc@1115	4239
adamc@1115	4240 size_t uw_database_max = SIZE_MAX;
adamc@1120	4241
adam@1389	4242 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@2143	4243 if (ctx->loggers->log_debug)
adam@2143	4244 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@2143	4245 else
adam@2143	4246 fprintf(stderr, "%s\n", s);
adam@1389	4247 return 0;
adam@1389	4248 }
adam@1389	4249
adamc@1120	4250 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
grrwlf@1997	4251 if (ctx->loggers->log_debug)
grrwlf@1997	4252 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@1334	4253 else
adam@1334	4254 fprintf(stderr, "%s\n", s);
adamc@1120	4255 return uw_unit_v;
adamc@1120	4256 }
adamc@1250	4257
adamc@1250	4258 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@2104	4259 int r = my_rand();
adam@2104	4260
adam@2104	4261 if (r >= 0)
adam@2104	4262 return r;
adam@1486	4263 else
adam@1486	4264 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	4265 }
adam@1347	4266
adam@1347	4267 void uw_noPostBody(uw_context ctx) {
adam@1347	4268 ctx->hasPostBody = 0;
adam@1347	4269 }
adam@1347	4270
adam@1347	4271 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	4272 ctx->hasPostBody = 1;
adam@1347	4273 ctx->postBody = pb;
adam@1347	4274 }
adam@1347	4275
adam@1347	4276 int uw_hasPostBody(uw_context ctx) {
adam@1347	4277 return ctx->hasPostBody;
adam@1347	4278 }
adam@1347	4279
adam@1386	4280 void uw_isPost(uw_context ctx) {
adam@1386	4281 ctx->isPost = 1;
adam@1386	4282 }
adam@1386	4283
adam@1386	4284 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4285 return ctx->isPost;
adam@1386	4286 }
adam@1386	4287
adam@1485	4288 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4289 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4290 }
adam@1485	4291
adam@1370	4292 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4293 ctx->queryString = s;
adam@1370	4294 }
adam@1370	4295
adam@1370	4296 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4297 return ctx->queryString;
adam@1370	4298 }
adam@1370	4299
adam@1347	4300 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4301 if (ctx->hasPostBody)
adam@1347	4302 return ctx->postBody;
adam@1347	4303 else
adam@1347	4304 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4305 }
adam@1349	4306
adam@1349	4307 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4308 int r = setjmp(ctx->jmp_buf);
adam@1349	4309
adam@1349	4310 if (r == 0) {
adam@1936	4311 uw_ensure_transaction(ctx);
adam@1418	4312
adam@1349	4313 callback(ctx);
adam@1349	4314 }
adam@1349	4315
adam@1349	4316 return r;
adam@1349	4317 }
adam@1360	4318
adam@1360	4319 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4320 char buf[14];
adam@1397	4321 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4322 }
adam@1365	4323
adam@1365	4324 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4325 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	4326 }
adam@1365	4327
adam@1365	4328 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@2034	4329 return !!(t1.seconds < t2.seconds \|\| (t1.seconds == t2.seconds && t1.microseconds < t2.microseconds));
adam@1365	4330 }
adam@1365	4331
adam@1365	4332 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4333 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4334 }
adam@1365	4335
adam@1372	4336 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4337 struct tm stm = {};
adam@1375	4338 char *end = strchr(s, 0);
adam@1449	4339 stm.tm_isdst = -1;
adam@1375	4340
adam@1632	4341 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4342 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4343
kkallio@1448	4344 r->seconds = timegm(&stm);
adam@1373	4345 r->microseconds = 0;
adam@1373	4346
adam@1373	4347 return r;
adam@1374	4348 }
adam@1374	4349 else
adam@1373	4350 return NULL;
adam@1372	4351 }
adam@1407	4352
adam@1407	4353 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4354 int r = setjmp(ctx->jmp_buf);
adam@1407	4355
adam@1407	4356 if (ctx->app->on_error) {
adam@1407	4357 if (r == 0) {
adam@1936	4358 uw_ensure_transaction(ctx);
adam@1407	4359
adam@1409	4360 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4361 if (on_success[0])
adam@1409	4362 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4363 else
adam@1409	4364 uw_write_header(ctx, "Status: ");
adam@1409	4365 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919	4366 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1956	4367 uw_write(ctx, ctx->app->is_html5 ? uw_begin_html5 : uw_begin_xhtml);
adam@1407	4368 ctx->app->on_error(ctx, msg);
adam@1407	4369 uw_write(ctx, "</html>");
adam@1407	4370 }
adam@1407	4371
adam@1407	4372 return r;
adam@1407	4373 } else
adam@1407	4374 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4375 }
adam@1451	4376
adam@1451	4377 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4378 ctx->allowed_to_return_indirectly = 1;
adam@1451	4379 }
adam@1483	4380
adam@1556	4381 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4382 int len;
adam@1703	4383 char *r;
adam@1703	4384
adam@1703	4385 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4386 r = ctx->heap.front;
adam@1703	4387 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4388 ctx->heap.front += len+1;
adam@1703	4389 return r;
adam@1556	4390 }
adam@1571	4391
adam@1571	4392 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4393 return n;
adam@1571	4394 }
adam@1571	4395
adam@1571	4396 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4397 return ceil(n);
adam@1571	4398 }
adam@1571	4399
adam@1571	4400 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4401 return trunc(n);
adam@1571	4402 }
adam@1571	4403
adam@1571	4404 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4405 return round(n);
adam@1571	4406 }
adam@1755	4407
adam@1755	4408 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755	4409 char *p;
adam@1755	4410
adam@1755	4411 for (p = s; *p; ++p) {
adam@1755	4412 char c = *p;
adam@1801	4413 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755	4414 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4415 }
adam@1755	4416
adam@1755	4417 return s;
adam@1755	4418 }
adam@1755	4419
adam@1755	4420 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4421 char *p;
adam@1755	4422
adam@1755	4423 for (p = s; *p; ++p) {
adam@1755	4424 char c = *p;
adam@1801	4425 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4426 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4427 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4428 }
adam@1755	4429
adam@1755	4430 return s;
adam@1755	4431 }
adam@1755	4432
adam@1755	4433 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4434 char *p;
adam@1755	4435
adam@1755	4436 if (!*s)
adam@1755	4437 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4438
adam@1801	4439 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4440 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4441
adam@1755	4442 for (p = s; *p; ++p) {
adam@1755	4443 char c = *p;
adam@1801	4444 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4445 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4446 }
adam@1755	4447
adam@1755	4448 return s;
adam@1755	4449 }
adam@1787	4450
adam@1787	4451 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4452 return f.name;
adam@1787	4453 }
adam@1787	4454
adam@1787	4455 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4456 return f.value;
adam@1787	4457 }
adam@1787	4458
adam@1787	4459 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4460 return f.remaining;
adam@1787	4461 }
adam@1787	4462
adam@1787	4463 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4464 char *unurl;
adam@1787	4465 uw_Basis_postField *f;
adam@1787	4466
adam@1788	4467 if (!ctx->hasPostBody)
adam@1788	4468 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4469
adam@1788	4470 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4471 return NULL;
adam@1787	4472
adam@1787	4473 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4474 unurl = s;
adam@1787	4475 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4476 s = strchr(s, 0);
adam@1788	4477 if (!s)
adam@1788	4478 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4479 ++s;
adam@1788	4480 unurl = s;
adam@1788	4481 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4482 s = strchr(s, 0);
adam@1788	4483 if (!s)
adam@1788	4484 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4485 f->remaining = s+1;
adam@1787	4486
adam@1787	4487 return f;
adam@1787	4488 }
adam@2008	4489
adam@2008	4490 uw_Basis_string uw_Basis_blessData(uw_context ctx, uw_Basis_string s) {
adam@2008	4491 char *p = s;
adam@2008	4492
adam@2008	4493 for (; *p; ++p)
adam@2008	4494 if (!isalnum(p) && p != '-' && *p != '_')
adam@2008	4495 uw_error(ctx, FATAL, "Illegal HTML5 data-* attribute: %s", s);
adam@2008	4496
adam@2008	4497 return s;
adam@2008	4498 }
adam@2073	4499
adam@2073	4500 int uw_remoteSock(uw_context ctx) {
adam@2073	4501 return ctx->remoteSock;
adam@2073	4502 }
adam@2073	4503
adam@2073	4504 void uw_set_remoteSock(uw_context ctx, int sock) {
adam@2073	4505 ctx->remoteSock = sock;
adam@2073	4506 }

Mercurial > urweb

annotate src/c/urweb.c @ 2178:c76a9712334c