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

annotate src/c/urweb.c @ 2224:5709482a2afd

Merge.

author	Ziv Scully <ziv@mit.edu>
date	Thu, 11 Dec 2014 02:05:41 -0500
parents	794017f378de fd6d362666c0
children	e10881cd92da

rev	line source
adamc@1268	1 #include "config.h"
adamc@1268	2
adamc@117	3 #include <stdlib.h>
adamc@102	4 #include <stdio.h>
adamc@117	5 #include <string.h>
adamc@457	6 #include <strings.h>
adamc@106	7 #include <ctype.h>
adamc@167	8 #include <setjmp.h>
adamc@167	9 #include <stdarg.h>
adamc@682	10 #include <assert.h>
adamc@741	11 #include <ctype.h>
adamc@1114	12 #include <limits.h>
adamc@1113	13 #include <stdint.h>
adamc@1094	14 #include <sys/types.h>
adamc@1094	15 #include <sys/socket.h>
adam@1397	16 #include <openssl/des.h>
adam@1486	17 #include <openssl/rand.h>
adam@1374	18 #include <time.h>
adam@1571	19 #include <math.h>
adamc@102	20
adamc@667	21 #include <pthread.h>
adamc@667	22
adamc@102	23 #include "types.h"
adamc@102	24
adam@1431	25 uw_unit uw_unit_v = 0;
adamc@102	26
adamc@667	27
adamc@667	28 // Socket extras
adamc@667	29
adamc@863	30 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667	31 while (len > 0) {
adamc@856	32 ssize_t n = send(sock, buf, len, 0);
adamc@856	33
adamc@856	34 if (n < 0)
adamc@856	35 return n;
adamc@856	36
adamc@856	37 buf += n;
adamc@856	38 len -= n;
adamc@856	39 }
adamc@856	40
adamc@856	41 return 0;
adamc@856	42 }
adamc@856	43
adamc@856	44 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856	45 while (len > 0) {
adamc@856	46 ssize_t n = write(fd, buf, len);
adamc@667	47
adamc@667	48 if (n < 0)
adamc@667	49 return n;
adamc@667	50
adamc@667	51 buf += n;
adamc@667	52 len -= n;
adamc@667	53 }
adamc@667	54
adamc@667	55 return 0;
adamc@667	56 }
adamc@667	57
adamc@667	58
adamc@667	59 // Buffers
adamc@667	60
adam@1369	61 void uw_buffer_init(size_t max, uw_buffer *b, size_t s) {
adamc@1113	62 b->max = max;
adamc@667	63 b->front = b->start = malloc(s);
adamc@667	64 b->back = b->front + s;
adamc@667	65 }
adamc@667	66
adam@1369	67 void uw_buffer_free(uw_buffer *b) {
adamc@667	68 free(b->start);
adamc@667	69 }
adamc@667	70
adam@1369	71 void uw_buffer_reset(uw_buffer *b) {
adamc@667	72 b->front = b->start;
adamc@667	73 }
adamc@667	74
adam@1369	75 int uw_buffer_check(uw_buffer *b, size_t extra) {
adamc@667	76 if (b->back - b->front < extra) {
adamc@667	77 size_t desired = b->front - b->start + extra, next;
adamc@667	78 char *new_heap;
adamc@667	79
adamc@667	80 next = b->back - b->start;
adamc@667	81 if (next == 0)
adamc@667	82 next = 1;
adamc@667	83 for (; next < desired; next *= 2);
adamc@667	84
adamc@1134	85 if (next > b->max) {
adamc@1113	86 if (desired <= b->max)
adamc@1113	87 next = desired;
adamc@1113	88 else
adamc@1113	89 return 1;
adamc@1134	90 }
adamc@1113	91
adamc@667	92 new_heap = realloc(b->start, next);
adamc@667	93 b->front = new_heap + (b->front - b->start);
adamc@667	94 b->back = new_heap + next;
adamc@667	95 b->start = new_heap;
adamc@667	96 }
adamc@1113	97
adamc@1113	98 return 0;
adamc@1113	99 }
adamc@1113	100
adamc@1113	101 __attribute__((noreturn)) void uw_error(uw_context, failure_kind, const char *, ...);
adamc@1113	102
adam@1369	103 static void ctx_uw_buffer_check(uw_context ctx, const char kind, uw_buffer b, size_t extra) {
adam@1369	104 if (uw_buffer_check(b, extra))
adamc@1113	105 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@667	106 }
adamc@667	107
adam@1369	108 size_t uw_buffer_used(uw_buffer *b) {
adamc@667	109 return b->front - b->start;
adamc@667	110 }
adamc@667	111
adam@1369	112 size_t uw_buffer_avail(uw_buffer *b) {
adamc@667	113 return b->back - b->start;
adamc@667	114 }
adamc@667	115
adam@1369	116 int uw_buffer_append(uw_buffer b, const char s, size_t len) {
adam@1369	117 if (uw_buffer_check(b, len+1))
adamc@1113	118 return 1;
adamc@1113	119
adamc@1113	120 memcpy(b->front, s, len);
adamc@1113	121 b->front += len;
adamc@1113	122 *b->front = 0;
adamc@1113	123
adamc@1113	124 return 0;
adamc@1113	125 }
adamc@1113	126
adam@1369	127 static void ctx_uw_buffer_append(uw_context ctx, const char kind, uw_buffer b, const char *s, size_t len) {
adam@1369	128 ctx_uw_buffer_check(ctx, kind, b, len+1);
adamc@1113	129
adamc@668	130 memcpy(b->front, s, len);
adamc@668	131 b->front += len;
adamc@672	132 *b->front = 0;
adamc@668	133 }
adamc@667	134
adamc@668	135
adamc@672	136 // Persistent state types
adamc@667	137
adamc@667	138 typedef enum { UNUSED, USED } usage;
adamc@667	139
adamc@667	140 typedef struct client {
adamc@682	141 unsigned id;
adamc@667	142 usage mode;
adamc@682	143 int pass;
adamc@682	144 struct client *next;
adamc@689	145 pthread_mutex_t lock, pull_lock;
adam@1369	146 uw_buffer msgs;
adamc@682	147 int sock;
adamc@863	148 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	149 int (*close)(int fd);
adamc@682	150 time_t last_contact;
adamc@682	151 unsigned n_channels;
adamc@685	152 unsigned refcount;
adamc@1121	153 void *data;
adamc@667	154 } client;
adamc@667	155
adamc@672	156
adamc@672	157 // Persistent client state
adamc@672	158
adamc@682	159 static client *clients, clients_free, *clients_used;
adamc@682	160 static unsigned n_clients;
adamc@667	161
adam@1707	162 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@1113	163 size_t uw_messages_max = SIZE_MAX;
adamc@1113	164 size_t uw_clients_max = SIZE_MAX;
adamc@1113	165
adamc@1121	166 void *uw_init_client_data();
adamc@1121	167 void uw_free_client_data(void *);
adamc@1121	168 void uw_copy_client_data(void dst, void src);
adamc@1121	169
adamc@682	170 static client *new_client() {
adamc@667	171 client *c;
adamc@667	172
adamc@667	173 pthread_mutex_lock(&clients_mutex);
adamc@667	174
adamc@667	175 if (clients_free) {
adamc@667	176 c = clients_free;
adamc@682	177 clients_free = clients_free->next;
adamc@667	178 }
adam@1672	179 else if (n_clients >= uw_clients_max) {
adam@1672	180 pthread_mutex_unlock(&clients_mutex);
adamc@1113	181 return NULL;
adam@1672	182 } else {
adamc@667	183 ++n_clients;
adamc@667	184 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	185 c = malloc(sizeof(client));
adamc@667	186 c->id = n_clients-1;
adamc@682	187 pthread_mutex_init(&c->lock, NULL);
adamc@689	188 pthread_mutex_init(&c->pull_lock, NULL);
adam@1369	189 uw_buffer_init(uw_messages_max, &c->msgs, 0);
adamc@667	190 clients[n_clients-1] = c;
adamc@667	191 }
adamc@667	192
adamc@682	193 pthread_mutex_lock(&c->lock);
adamc@667	194 c->mode = USED;
adamc@682	195 c->pass = rand();
adamc@682	196 c->sock = -1;
adamc@682	197 c->last_contact = time(NULL);
adam@1369	198 uw_buffer_reset(&c->msgs);
adamc@682	199 c->n_channels = 0;
adamc@685	200 c->refcount = 0;
adamc@1121	201 c->data = uw_init_client_data();
adamc@682	202 pthread_mutex_unlock(&c->lock);
adamc@682	203
adamc@682	204 c->next = clients_used;
adamc@682	205 clients_used = c;
adamc@667	206
adamc@667	207 pthread_mutex_unlock(&clients_mutex);
adamc@667	208
adamc@667	209 return c;
adamc@667	210 }
adamc@667	211
adamc@685	212 static void use_client(client *c) {
adamc@685	213 pthread_mutex_lock(&c->lock);
adamc@685	214 ++c->refcount;
adamc@685	215 pthread_mutex_unlock(&c->lock);
adamc@689	216 pthread_mutex_lock(&c->pull_lock);
adamc@685	217 }
adamc@685	218
adamc@685	219 static void release_client(client *c) {
adamc@689	220 pthread_mutex_unlock(&c->pull_lock);
adamc@685	221 pthread_mutex_lock(&c->lock);
adamc@685	222 --c->refcount;
adamc@685	223 pthread_mutex_unlock(&c->lock);
adamc@685	224 }
adamc@685	225
adamc@856	226 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adam@1707	227 static pthread_t pruning_thread;
adam@1707	228 static int pruning_thread_initialized = 0;
adamc@667	229
adamc@682	230 static client *find_client(unsigned id) {
adamc@667	231 client *c;
adam@1708	232 int i_am_pruner = pruning_thread_initialized && pthread_equal(pruning_thread, pthread_self());
adam@1708	233
adam@1708	234 if (!i_am_pruner) pthread_mutex_lock(&clients_mutex);
adamc@667	235
adamc@667	236 if (id >= n_clients) {
adam@1708	237 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	238 return NULL;
adamc@667	239 }
adamc@667	240
adamc@667	241 c = clients[id];
adamc@667	242
adam@1708	243 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	244 return c;
adamc@668	245 }
adamc@668	246
adamc@856	247 static char *on_success = "HTTP/1.1 200 OK\r\n";
adam@1409	248 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	249
adamc@856	250 void uw_set_on_success(char *s) {
adamc@856	251 on_success = s;
adamc@856	252 }
adamc@856	253
adam@1552	254 static void chastise(int (send)(int sockfd, const void buf, ssize_t len), int sock) {
adam@1552	255 send(sock, on_success, strlen(on_success));
adam@1552	256 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1552	257 send(sock, "R", 1);
adam@1552	258 close(sock);
adam@1552	259 }
adam@1552	260
adamc@863	261 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	262 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	263 int (*close)(int fd),
adamc@864	264 void *logger_data, uw_logger log_error) {
adamc@682	265 client *c = find_client(id);
adamc@668	266
adamc@668	267 if (c == NULL) {
adam@1552	268 chastise(send, sock);
adamc@864	269 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	270 return;
adamc@667	271 }
adamc@667	272
adamc@682	273 pthread_mutex_lock(&c->lock);
adamc@671	274
adamc@682	275 if (c->mode != USED) {
adamc@682	276 pthread_mutex_unlock(&c->lock);
adam@1552	277 chastise(send, sock);
adamc@864	278 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	279 return;
adamc@667	280 }
adamc@667	281
adamc@682	282 if (pass != c->pass) {
adamc@682	283 pthread_mutex_unlock(&c->lock);
adam@1552	284 chastise(send, sock);
adamc@864	285 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	286 return;
adamc@667	287 }
adamc@667	288
adamc@682	289 if (c->sock != -1) {
adamc@863	290 c->close(c->sock);
adamc@682	291 c->sock = -1;
adamc@682	292 }
adamc@667	293
adamc@682	294 c->last_contact = time(NULL);
adamc@682	295
adam@1369	296 if (uw_buffer_used(&c->msgs) > 0) {
adamc@863	297 send(sock, on_success, strlen(on_success));
adamc@863	298 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1369	299 send(sock, c->msgs.start, uw_buffer_used(&c->msgs));
adam@1369	300 uw_buffer_reset(&c->msgs);
adamc@667	301 close(sock);
adamc@667	302 }
adamc@863	303 else {
adamc@682	304 c->sock = sock;
adamc@863	305 c->send = send;
adamc@863	306 c->close = close;
adamc@863	307 }
adamc@667	308
adamc@682	309 pthread_mutex_unlock(&c->lock);
adamc@667	310 }
adamc@667	311
adamc@682	312 static void free_client(client *c) {
adamc@682	313 c->mode = UNUSED;
adamc@682	314 c->pass = -1;
adamc@667	315
adamc@682	316 c->next = clients_free;
adamc@682	317 clients_free = c;
adamc@667	318 }
adamc@667	319
adamc@682	320 static uw_Basis_channel new_channel(client *c) {
adamc@682	321 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	322 return ch;
adamc@668	323 }
adamc@668	324
adam@1447	325 static void client_send(client c, uw_buffer msg, const char *script, int script_len) {
adamc@685	326 pthread_mutex_lock(&c->lock);
adamc@671	327
adamc@682	328 if (c->sock != -1) {
adamc@863	329 c->send(c->sock, on_success, strlen(on_success));
adamc@863	330 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1447	331 if (script_len > 0) {
adam@1447	332 c->send(c->sock, "E\n", 2);
adam@1447	333 c->send(c->sock, script, script_len);
adam@1447	334 c->send(c->sock, "\n", 1);
adam@1447	335 }
adam@1369	336 c->send(c->sock, msg->start, uw_buffer_used(msg));
adamc@863	337 c->close(c->sock);
adamc@682	338 c->sock = -1;
adam@1665	339 } else if (uw_buffer_append(&c->msgs, msg->start, uw_buffer_used(msg)))
adamc@1113	340 fprintf(stderr, "Client message buffer size exceeded");
adamc@671	341
adamc@685	342 pthread_mutex_unlock(&c->lock);
adamc@668	343 }
adamc@668	344
adamc@668	345
adamc@668	346 // Global entry points
adamc@668	347
adamc@1164	348 extern void uw_global_custom();
adamc@1104	349 extern void uw_init_crypto();
adamc@1104	350
adamc@668	351 void uw_global_init() {
adamc@668	352 srand(time(NULL) ^ getpid());
adamc@668	353
adamc@668	354 clients = malloc(0);
adamc@1104	355
adamc@1164	356 uw_global_custom();
adamc@1104	357 uw_init_crypto();
adamc@1094	358 }
adamc@1094	359
adamc@1094	360 void uw_app_init(uw_app *app) {
adamc@1094	361 app->client_init();
adamc@668	362 }
adamc@668	363
adam@1332	364 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114	365
adamc@668	366
adamc@667	367 // Single-request state
adamc@667	368
adamc@323	369 typedef struct regions {
adamc@323	370 struct regions *next;
adamc@323	371 } regions;
adamc@323	372
adamc@425	373 typedef struct {
adamc@425	374 void (func)(void);
adamc@425	375 void *arg;
adamc@425	376 } cleanup;
adamc@425	377
adamc@671	378 typedef struct {
adamc@682	379 unsigned client;
adam@1369	380 uw_buffer msgs;
adamc@682	381 } delta;
adamc@671	382
adamc@737	383 typedef enum {
adamc@759	384 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	385 } input_kind;
adamc@737	386
adamc@756	387 typedef struct input {
adamc@737	388 input_kind kind;
adamc@737	389 union {
adamc@737	390 char *normal;
adamc@739	391 uw_Basis_file file;
adamc@756	392 struct {
adamc@759	393 struct input fields, parent;
adamc@756	394 } subform;
adamc@759	395 struct {
adamc@759	396 struct input entries, parent;
adamc@759	397 } subforms;
adamc@759	398 struct {
adamc@759	399 struct input fields, next, *parent;
adamc@759	400 } entry;
adamc@737	401 } data;
adamc@737	402 } input;
adamc@737	403
adamc@771	404 typedef struct {
adamc@771	405 void *data;
adam@1327	406 uw_callback commit, rollback;
adam@1327	407 uw_callback_with_retry free;
adamc@771	408 } transactional;
adamc@771	409
adamc@1061	410 typedef struct {
adamc@1061	411 char *name;
adamc@1061	412 void *data;
adamc@1061	413 void (free)(void);
adamc@1061	414 } global;
adamc@1061	415
adamc@311	416 struct uw_context {
adamc@1094	417 uw_app *app;
adam@1446	418 int id;
adamc@1094	419
adamc@854	420 char (get_header)(void , const char );
adamc@854	421 void *get_header_data;
adamc@457	422
adam@1799	423 char (get_env)(void , const char );
adam@1799	424 void *get_env_data;
adam@1799	425
adam@1369	426 uw_buffer outHeaders, page, heap, script;
adam@1451	427 int allowed_to_return_indirectly, returning_indirectly;
adamc@759	428 input inputs, subinputs, *cur_container;
adamc@1094	429 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	430
adam@1446	431 unsigned long long source_count;
adamc@562	432
adamc@272	433 void *db;
adam@1931	434 int transaction_started;
adamc@272	435
adamc@167	436 jmp_buf jmp_buf;
adamc@167	437
adamc@323	438 regions *regions;
adamc@323	439
adamc@425	440 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	441
adamc@1094	442 const char *script_header;
adamc@643	443
adam@2056	444 int needs_push, needs_sig, could_write_db, at_most_one_query;
adamc@693	445
adamc@682	446 size_t n_deltas, used_deltas;
adamc@682	447 delta *deltas;
adamc@671	448
adamc@682	449 client *client;
adamc@682	450
adamc@771	451 transactional *transactionals;
adamc@771	452 size_t n_transactionals, used_transactionals;
adamc@771	453
adamc@1061	454 global *globals;
adamc@1061	455 size_t n_globals;
adamc@1061	456
adamc@1066	457 char *current_url;
adamc@1066	458
adamc@1114	459 int deadline;
adamc@1114	460
adamc@1121	461 void *client_data;
adamc@1121	462
grrwlf@1997	463 uw_loggers *loggers;
adam@1334	464
adam@1386	465 int isPost, hasPostBody;
adam@1347	466 uw_Basis_postBody postBody;
adam@1370	467 uw_Basis_string queryString;
adam@1347	468
adam@1556	469 unsigned nextId;
adam@1556	470
adam@1782	471 int amInitializing;
adam@1782	472
adamc@167	473 char error_message[ERROR_BUF_LEN];
adam@1877	474
adam@1877	475 int usedSig, needsResig;
adam@1949	476
adam@1949	477 char *output_buffer;
adam@1949	478 size_t output_buffer_size;
adam@2073	479
ziv@2204	480 // For caching.
ziv@2204	481 char *recording;
ziv@2220	482
adam@2073	483 int remoteSock;
adamc@117	484 };
adamc@117	485
adamc@1113	486 size_t uw_headers_max = SIZE_MAX;
adamc@1113	487 size_t uw_page_max = SIZE_MAX;
adamc@1113	488 size_t uw_heap_max = SIZE_MAX;
adamc@1113	489 size_t uw_script_max = SIZE_MAX;
adamc@1113	490
grrwlf@1997	491 uw_context uw_init(int id, uw_loggers *lg) {
adamc@311	492 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	493
adamc@1094	494 ctx->app = NULL;
adam@1446	495 ctx->id = id;
adamc@1094	496
adamc@854	497 ctx->get_header = NULL;
adamc@854	498 ctx->get_header_data = NULL;
adamc@457	499
adam@1799	500 ctx->get_env = NULL;
adam@1799	501 ctx->get_env_data = NULL;
adam@1799	502
adam@1413	503 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413	504 ctx->outHeaders.start[0] = 0;
adam@1413	505 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413	506 ctx->page.start[0] = 0;
adam@1451	507 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	508 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369	509 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667	510 ctx->script.start[0] = 0;
adamc@136	511
adamc@1094	512 ctx->inputs = malloc(0);
adamc@759	513 ctx->cur_container = NULL;
adamc@756	514 ctx->subinputs = malloc(0);
adamc@1094	515 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	516
adamc@272	517 ctx->db = NULL;
adam@1931	518 ctx->transaction_started = 0;
adamc@272	519
adamc@323	520 ctx->regions = NULL;
adamc@323	521
adamc@425	522 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	523
adamc@643	524 ctx->script_header = "";
adamc@693	525 ctx->needs_push = 0;
adamc@736	526 ctx->needs_sig = 0;
adam@1936	527 ctx->could_write_db = 1;
adam@2056	528 ctx->at_most_one_query = 0;
adamc@1104	529
adamc@565	530 ctx->source_count = 0;
adamc@562	531
adamc@682	532 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	533 ctx->deltas = malloc(0);
adamc@671	534
adamc@700	535 ctx->client = NULL;
adamc@700	536
adamc@700	537 ctx->error_message[0] = 0;
adamc@700	538
adamc@771	539 ctx->transactionals = malloc(0);
adamc@771	540 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	541
adamc@1061	542 ctx->globals = malloc(0);
adamc@1061	543 ctx->n_globals = 0;
adamc@1061	544
adamc@1066	545 ctx->current_url = "";
adamc@1066	546
adamc@1114	547 ctx->deadline = INT_MAX;
adamc@1114	548
adamc@1121	549 ctx->client_data = uw_init_client_data();
adamc@1121	550
grrwlf@1997	551 ctx->loggers = lg;
adam@1334	552
adam@1386	553 ctx->isPost = ctx->hasPostBody = 0;
adam@1347	554
adam@1370	555 ctx->queryString = NULL;
adam@1370	556
adam@1556	557 ctx->nextId = 0;
adam@1556	558
adam@1782	559 ctx->amInitializing = 0;
adam@1782	560
adam@1877	561 ctx->usedSig = 0;
adam@1877	562 ctx->needsResig = 0;
adam@1877	563
adam@1949	564 ctx->output_buffer = malloc(1);
adam@1949	565 ctx->output_buffer_size = 1;
adam@1949	566
ziv@2204	567 ctx->recording = 0;
ziv@2204	568
adam@2073	569 ctx->remoteSock = -1;
adam@2073	570
adamc@117	571 return ctx;
adamc@106	572 }
adamc@106	573
adamc@1113	574 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	575
adamc@1121	576 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	577 return ctx->app;
adamc@1121	578 }
adamc@1121	579
adamc@1113	580 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	581 ctx->app = app;
adamc@1094	582
adamc@1105	583 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	584 if (app->inputs_len > uw_inputs_max)
adamc@1113	585 return 1;
adamc@1113	586
adamc@1094	587 ctx->sz_inputs = app->inputs_len;
adamc@1094	588 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	589 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	590 }
adamc@1134	591
adamc@1134	592 return 0;
adamc@1094	593 }
adamc@1094	594
adamc@1121	595 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	596 uw_copy_client_data(ctx->client_data, data);
adamc@1121	597 }
adamc@1121	598
adamc@311	599 void uw_set_db(uw_context ctx, void *db) {
adamc@272	600 ctx->db = db;
adamc@272	601 }
adamc@272	602
adamc@311	603 void *uw_get_db(uw_context ctx) {
adamc@272	604 return ctx->db;
adamc@272	605 }
adamc@272	606
grrwlf@1997	607
grrwlf@1997	608 uw_loggers* uw_get_loggers(struct uw_context *ctx) {
grrwlf@1997	609 return ctx->loggers;
grrwlf@1997	610 }
grrwlf@1997	611
adamc@311	612 void uw_free(uw_context ctx) {
adamc@671	613 size_t i;
adamc@671	614
adam@1369	615 uw_buffer_free(&ctx->outHeaders);
adam@1369	616 uw_buffer_free(&ctx->script);
adam@1369	617 uw_buffer_free(&ctx->page);
adam@1369	618 uw_buffer_free(&ctx->heap);
adamc@144	619 free(ctx->inputs);
adamc@756	620 free(ctx->subinputs);
adamc@425	621 free(ctx->cleanup);
adamc@771	622 free(ctx->transactionals);
adamc@1121	623 uw_free_client_data(ctx->client_data);
adamc@671	624
adamc@682	625 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	626 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	627 free(ctx->deltas);
adamc@671	628
adamc@1061	629 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	630 if (ctx->globals[i].free)
adamc@1089	631 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	632 free(ctx->globals);
adamc@1061	633
adam@1949	634 free(ctx->output_buffer);
adam@1949	635
adamc@136	636 free(ctx);
adamc@136	637 }
adamc@136	638
adamc@562	639 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	640 uw_buffer_reset(&ctx->outHeaders);
adam@1369	641 uw_buffer_reset(&ctx->script);
adamc@667	642 ctx->script.start[0] = 0;
adam@1369	643 uw_buffer_reset(&ctx->page);
adam@1451	644 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	645 uw_buffer_reset(&ctx->heap);
adamc@323	646 ctx->regions = NULL;
adamc@425	647 ctx->cleanup_front = ctx->cleanup;
adamc@682	648 ctx->used_deltas = 0;
adamc@682	649 ctx->client = NULL;
adamc@759	650 ctx->cur_container = NULL;
adamc@771	651 ctx->used_transactionals = 0;
adamc@1117	652 ctx->script_header = "";
adam@1370	653 ctx->queryString = NULL;
adam@1556	654 ctx->nextId = 0;
adam@1782	655 ctx->amInitializing = 0;
adam@1877	656 ctx->usedSig = 0;
adam@1877	657 ctx->needsResig = 0;
adam@2073	658 ctx->remoteSock = -1;
adamc@167	659 }
adamc@167	660
adamc@562	661 void uw_reset_keep_request(uw_context ctx) {
adamc@562	662 uw_reset_keep_error_message(ctx);
adamc@562	663 ctx->error_message[0] = 0;
adamc@167	664 }
adamc@167	665
adamc@311	666 void uw_reset(uw_context ctx) {
adamc@311	667 uw_reset_keep_request(ctx);
adamc@1105	668 if (ctx->app)
adamc@1105	669 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	670 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461	671 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adam@1943	672 ctx->transaction_started = 0;
adamc@144	673 }
adamc@144	674
adamc@311	675 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	676 int r = setjmp(ctx->jmp_buf);
adamc@272	677
adamc@1105	678 if (r == 0 && ctx->app)
adamc@1094	679 ctx->app->db_init(ctx);
adamc@272	680
adamc@272	681 return r;
adamc@272	682 }
adamc@272	683
adamc@1118	684 void uw_close(uw_context ctx) {
adamc@1118	685 ctx->app->db_close(ctx);
adamc@1118	686 }
adamc@1118	687
adam@1446	688 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	689 return ctx->get_header(ctx->get_header_data, h);
adam@1446	690 }
adam@1446	691
adamc@854	692 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	693 ctx->get_header = get_header;
adamc@854	694 ctx->get_header_data = get_header_data;
adamc@742	695 }
adamc@742	696
adam@1799	697 void uw_set_env(uw_context ctx, char (get_env)(void , const char ), void *get_env_data) {
adam@1799	698 ctx->get_env = get_env;
adam@1799	699 ctx->get_env_data = get_env_data;
adam@1799	700 }
adam@1799	701
adamc@801	702 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	703 va_list ap;
adamc@801	704 va_start(ap, fmt);
adamc@801	705
adamc@801	706 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	707 }
adamc@801	708
adamc@1131	709 int uw_has_error(uw_context ctx) {
adamc@1131	710 return ctx->error_message[0] != 0;
adamc@1131	711 }
adamc@1131	712
adamc@311	713 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	714 cleanup *cl;
adamc@425	715
adamc@167	716 va_list ap;
adamc@167	717 va_start(ap, fmt);
adamc@167	718
adamc@167	719 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	720
adamc@425	721 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	722 cl->func(cl->arg);
adamc@425	723
adamc@425	724 ctx->cleanup_front = ctx->cleanup;
adamc@425	725
adamc@190	726 longjmp(ctx->jmp_buf, fk);
adamc@167	727 }
adamc@167	728
adamc@1113	729 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	730
adamc@425	731 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	732 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	733 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	734 if (len == 0)
adamc@425	735 newLen = 1;
adamc@425	736 else
adamc@428	737 newLen = len * 2;
adamc@1113	738
adamc@1134	739 if (newLen > uw_cleanup_max) {
adamc@1113	740 if (len+1 <= uw_cleanup_max)
adamc@1113	741 newLen = uw_cleanup_max;
adamc@1113	742 else
adamc@1113	743 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	744 }
adamc@1113	745
adamc@470	746 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	747 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	748 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	749 }
adamc@425	750
adamc@425	751 ctx->cleanup_front->func = func;
adamc@425	752 ctx->cleanup_front->arg = arg;
adamc@425	753 ++ctx->cleanup_front;
adamc@425	754 }
adamc@425	755
adam@1444	756 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	757
adamc@682	758 void uw_login(uw_context ctx) {
adam@1942	759 char id_s, pass_s;
adam@1942	760
adam@1942	761 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adam@1942	762 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adam@1942	763 unsigned id = atoi(id_s);
adam@1942	764 int pass = atoi(pass_s);
adam@1942	765 client *c = find_client(id);
adam@1942	766
adam@1942	767 if (c == NULL)
adam@1942	768 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	769 else {
adamc@685	770 use_client(c);
adamc@682	771 ctx->client = c;
adam@1942	772
adam@1942	773 if (c->mode != USED)
adam@1942	774 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adam@1942	775 if (c->pass != pass)
adam@1942	776 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@864	777 }
adam@1942	778 } else if (ctx->needs_push) {
adam@1942	779 client *c = new_client();
adam@1942	780
adam@1942	781 if (c == NULL)
adam@1942	782 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adam@1942	783
adam@1942	784 use_client(c);
adam@1942	785 uw_copy_client_data(c->data, ctx->client_data);
adam@1942	786 ctx->client = c;
adamc@682	787 }
adamc@682	788 }
adamc@682	789
adamc@671	790 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	791 int r = setjmp(ctx->jmp_buf);
adamc@671	792
adam@1931	793 if (r == 0)
adam@1931	794 ctx->app->handle(ctx, path);
adam@1931	795
adam@1931	796 return r;
adam@1931	797 }
adam@1931	798
adam@1931	799 void uw_ensure_transaction(uw_context ctx) {
adam@2056	800 if (!ctx->transaction_started && !ctx->at_most_one_query) {
adam@1936	801 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adamc@671	802 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1931	803 ctx->transaction_started = 1;
adamc@671	804 }
adamc@671	805 }
adamc@671	806
adamc@772	807 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	808 if (ctx->client == NULL)
adamc@682	809 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	810
adamc@682	811 return ctx->client->id;
adamc@682	812 }
adamc@682	813
adamc@425	814 void uw_pop_cleanup(uw_context ctx) {
adamc@425	815 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	816 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	817
adamc@425	818 --ctx->cleanup_front;
adamc@425	819 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	820 }
adamc@425	821
adamc@311	822 char *uw_error_message(uw_context ctx) {
adamc@167	823 return ctx->error_message;
adamc@167	824 }
adamc@167	825
adamc@1115	826 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	827 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	828 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	829 }
adamc@1115	830
adamc@759	831 static input *INP(uw_context ctx) {
adamc@759	832 if (ctx->cur_container == NULL)
adamc@759	833 return ctx->inputs;
adamc@759	834 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	835 return ctx->cur_container->data.subform.fields;
adamc@759	836 else if (ctx->cur_container->kind == ENTRY)
adamc@759	837 return ctx->cur_container->data.entry.fields;
adamc@759	838 else
adamc@760	839 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	840 }
adamc@759	841
adamc@760	842 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	843 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	844 *ptr += new_start - old_start;
adamc@760	845 }
adamc@760	846
adamc@760	847 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	848 switch (x->kind) {
adamc@759	849 case SUBFORM:
adamc@760	850 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	851 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	852 break;
adamc@759	853 case SUBFORMS:
adamc@760	854 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	855 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	856 break;
adamc@759	857 case ENTRY:
adamc@760	858 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	859 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	860 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	861 break;
adamc@1134	862 default:
adamc@1134	863 break;
phurst@1981	864 }
adamc@759	865 }
adamc@759	866
adamc@1113	867 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	868
adamc@759	869 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	870 size_t i;
adamc@759	871 input *r;
adamc@759	872
adamc@759	873 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	874 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	875 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	876
adamc@759	877 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	878
adamc@760	879 if (ctx->subinputs != new_subinputs) {
adamc@760	880 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	881 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	882 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	883 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	884
adamc@760	885 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	886
adamc@760	887 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	888 ctx->subinputs = new_subinputs;
adamc@760	889 }
adamc@759	890 }
adamc@759	891
adamc@759	892 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	893
adamc@759	894 for (i = 0; i < len; ++i)
adam@1474	895 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	896
adamc@759	897 return r;
adamc@759	898 }
adamc@756	899
adamc@801	900 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	901 //printf("Input name %s\n", name);
adamc@1038	902
adamc@756	903 if (!strcasecmp(name, ".b")) {
adamc@1094	904 int n = ctx->app->input_num(value);
adamc@756	905 input *inps;
adamc@756	906
adamc@801	907 if (n < 0) {
adam@1444	908 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	909 return -1;
adamc@801	910 }
adamc@801	911
adamc@1094	912 if (n >= ctx->app->inputs_len) {
adam@1444	913 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	914 return -1;
adamc@801	915 }
adamc@756	916
adamc@1094	917 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	918
adamc@759	919 INP(ctx)[n].kind = SUBFORM;
adamc@759	920 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	921 INP(ctx)[n].data.subform.fields = inps;
adamc@759	922 ctx->cur_container = &INP(ctx)[n];
adamc@756	923 } else if (!strcasecmp(name, ".e")) {
adamc@756	924 input *tmp;
adamc@756	925
adamc@801	926 if (ctx->cur_container == NULL) {
adamc@801	927 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	928 return -1;
adamc@801	929 }
adamc@756	930
adamc@759	931 tmp = ctx->cur_container;
adamc@759	932 switch (tmp->kind) {
adamc@759	933 case SUBFORM:
adamc@759	934 ctx->cur_container = tmp->data.subform.parent;
adamc@759	935 tmp->data.subform.parent = NULL;
adamc@759	936 break;
adamc@759	937 case SUBFORMS:
adamc@759	938 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	939 tmp->data.subforms.parent = NULL;
adamc@759	940 break;
adamc@759	941 case ENTRY:
adamc@759	942 ctx->cur_container = tmp->data.entry.parent;
adamc@759	943 break;
adamc@759	944 default:
adamc@801	945 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	946 return -1;
adamc@759	947 }
adamc@759	948 } else if (!strcasecmp(name, ".s")) {
adamc@1094	949 int n = ctx->app->input_num(value);
adamc@759	950
adamc@801	951 if (n < 0) {
adam@1444	952 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	953 return -1;
adamc@801	954 }
adamc@801	955
adamc@1094	956 if (n >= ctx->app->inputs_len) {
adam@1444	957 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	958 return -1;
adamc@801	959 }
adamc@759	960
adamc@759	961 INP(ctx)[n].kind = SUBFORMS;
adamc@759	962 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	963 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	964 ctx->cur_container = &INP(ctx)[n];
adamc@759	965 } else if (!strcasecmp(name, ".i")) {
adamc@759	966 input *inps;
adamc@759	967
adamc@801	968 if (!ctx->cur_container) {
adamc@801	969 uw_set_error(ctx, "New entry without container");
adamc@801	970 return -1;
adamc@801	971 }
adamc@801	972
adamc@801	973 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	974 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	975 return -1;
adamc@801	976 }
adamc@759	977
adamc@1094	978 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	979
adamc@759	980 inps->kind = ENTRY;
adamc@759	981 inps->data.entry.parent = ctx->cur_container;
adamc@759	982 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	983 ctx->cur_container->data.subforms.entries = inps;
adamc@759	984
adamc@759	985 inps->data.entry.fields = inps+1;
adamc@759	986 ctx->cur_container = inps;
adamc@756	987 } else {
adamc@1094	988 int n = ctx->app->input_num(name);
adamc@756	989
adam@1384	990 if (n < 0)
adam@1384	991 return 0;
adamc@801	992
adamc@1094	993 if (n >= ctx->app->inputs_len) {
adam@1444	994 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	995 return -1;
adamc@801	996 }
adamc@756	997
adamc@756	998 INP(ctx)[n].kind = NORMAL;
adamc@756	999 INP(ctx)[n].data.normal = value;
adamc@756	1000 }
adamc@801	1001
adamc@801	1002 return 0;
adamc@144	1003 }
adamc@144	1004
adamc@311	1005 char *uw_get_input(uw_context ctx, int n) {
adamc@169	1006 if (n < 0)
adamc@311	1007 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1008 if (n >= ctx->app->inputs_len)
adamc@311	1009 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1010
adamc@756	1011 switch (INP(ctx)[n].kind) {
adamc@737	1012 case UNSET:
adamc@737	1013 return NULL;
adamc@739	1014 case FIL:
adamc@739	1015 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1016 case SUBFORM:
adamc@756	1017 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1018 case SUBFORMS:
adamc@759	1019 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1020 case ENTRY:
adamc@759	1021 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1022 case NORMAL:
adamc@756	1023 return INP(ctx)[n].data.normal;
adamc@737	1024 default:
adamc@737	1025 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1026 }
adamc@138	1027 }
adamc@138	1028
adamc@311	1029 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	1030 if (n < 0)
adamc@311	1031 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1032 if (n >= ctx->app->inputs_len)
adamc@311	1033 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1034
adamc@756	1035 switch (INP(ctx)[n].kind) {
adamc@737	1036 case UNSET:
adamc@737	1037 return "";
adamc@739	1038 case FIL:
adamc@739	1039 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1040 case SUBFORM:
adamc@756	1041 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1042 case SUBFORMS:
adamc@759	1043 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1044 case ENTRY:
adamc@759	1045 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1046 case NORMAL:
adamc@756	1047 return INP(ctx)[n].data.normal;
adamc@737	1048 default:
adamc@737	1049 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1050 }
adamc@737	1051 }
adamc@737	1052
adamc@801	1053 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1054 int n = ctx->app->input_num(name);
adamc@737	1055
adamc@801	1056 if (n < 0) {
adam@2054	1057 uw_set_error(ctx, "Bad file input name");
adamc@801	1058 return -1;
adamc@801	1059 }
adamc@801	1060
adamc@1094	1061 if (n >= ctx->app->inputs_len) {
adam@2054	1062 uw_set_error(ctx, "For file input name, index %d is out of range", n);
adamc@801	1063 return -1;
adamc@801	1064 }
adamc@737	1065
adamc@739	1066 ctx->inputs[n].kind = FIL;
adamc@739	1067 ctx->inputs[n].data.file = f;
adamc@801	1068
adamc@801	1069 return 0;
adamc@737	1070 }
adamc@737	1071
adamc@739	1072 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1073
adamc@739	1074 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1075 if (n < 0)
adamc@737	1076 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1077 if (n >= ctx->app->inputs_len)
adamc@737	1078 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1079
adamc@756	1080 switch (INP(ctx)[n].kind) {
adamc@737	1081 case UNSET:
adamc@737	1082 {
adamc@739	1083 char *data = uw_malloc(ctx, 0);
adamc@740	1084 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1085 return f;
adamc@737	1086 }
adamc@739	1087 case FIL:
adamc@756	1088 return INP(ctx)[n].data.file;
adamc@737	1089 case NORMAL:
adamc@737	1090 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1091 case SUBFORM:
adamc@756	1092 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1093 case SUBFORMS:
adamc@759	1094 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1095 case ENTRY:
adamc@759	1096 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1097 default:
adamc@737	1098 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1099 }
adamc@190	1100 }
adamc@190	1101
adamc@756	1102 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1103 if (n < 0)
adamc@756	1104 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1105 if (n >= ctx->app->inputs_len)
adamc@756	1106 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1107
adamc@756	1108 switch (INP(ctx)[n].kind) {
adamc@756	1109 case UNSET:
adamc@756	1110 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1111 case FIL:
adamc@756	1112 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1113 case NORMAL:
adamc@756	1114 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1115 case SUBFORMS:
adamc@759	1116 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1117 case ENTRY:
adamc@759	1118 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1119 case SUBFORM:
adamc@759	1120 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1121 ctx->cur_container = &INP(ctx)[n];
adamc@756	1122 return;
adamc@756	1123 default:
adamc@756	1124 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1125 }
adamc@756	1126 }
adamc@756	1127
adamc@756	1128 void uw_leave_subform(uw_context ctx) {
adamc@756	1129 input *tmp;
adamc@756	1130
adamc@759	1131 if (ctx->cur_container == NULL)
adamc@756	1132 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1133
adamc@759	1134 tmp = ctx->cur_container;
adamc@759	1135 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1136 tmp->data.subform.parent = NULL;
adamc@759	1137 }
adamc@759	1138
adamc@759	1139 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1140 input *inps;
adamc@759	1141
adamc@759	1142 if (n < 0)
adamc@759	1143 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1144 if (n >= ctx->app->inputs_len)
adamc@759	1145 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1146
adamc@759	1147 switch (INP(ctx)[n].kind) {
adamc@759	1148 case UNSET:
adamc@759	1149 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1150 case FIL:
adamc@759	1151 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1152 case NORMAL:
adamc@759	1153 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1154 case SUBFORM:
adamc@759	1155 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1156 case ENTRY:
adamc@759	1157 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1158 case SUBFORMS:
adamc@759	1159 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1160 if (inps) {
adamc@759	1161 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1162 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1163 return 1;
adamc@759	1164 } else
adamc@759	1165 return 0;
adamc@759	1166 default:
adamc@759	1167 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1168 }
adamc@759	1169 }
adamc@759	1170
adamc@759	1171 int uw_next_entry(uw_context ctx) {
adamc@759	1172 if (ctx->cur_container == NULL)
adamc@759	1173 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1174
adamc@759	1175 switch (ctx->cur_container->kind) {
adamc@759	1176 case UNSET:
adamc@759	1177 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1178 case FIL:
adamc@759	1179 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1180 case NORMAL:
adamc@759	1181 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1182 case SUBFORM:
adamc@759	1183 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1184 case SUBFORMS:
adamc@759	1185 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1186 case ENTRY:
adamc@759	1187 if (ctx->cur_container->data.entry.next) {
adamc@759	1188 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1189 return 1;
adamc@759	1190 } else {
adamc@759	1191 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1192 return 0;
adamc@759	1193 }
adamc@759	1194 default:
adamc@759	1195 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1196 }
adamc@756	1197 }
adamc@756	1198
adamc@643	1199 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1200 ctx->script_header = s;
adamc@643	1201 }
adamc@643	1202
adamc@1094	1203 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1204 return ctx->app->url_prefix;
adamc@667	1205 }
adamc@667	1206
adamc@693	1207 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1208 ctx->needs_push = n;
adamc@693	1209 }
adamc@693	1210
adamc@736	1211 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1212 ctx->needs_sig = n;
adamc@736	1213 }
adamc@736	1214
adam@1936	1215 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936	1216 ctx->could_write_db = n;
adam@1936	1217 }
adam@1936	1218
adam@2056	1219 void uw_set_at_most_one_query(uw_context ctx, int n) {
adam@2056	1220 ctx->at_most_one_query = n;
adam@2056	1221 }
adam@2056	1222
adamc@667	1223
adam@1369	1224 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1225 if (b->back - b->front < extra) {
adamc@666	1226 size_t desired = b->front - b->start + extra, next;
adamc@136	1227 char *new_heap;
adamc@136	1228
adamc@666	1229 next = b->back - b->start;
adamc@317	1230 if (next == 0)
adamc@317	1231 next = 1;
adamc@317	1232 for (; next < desired; next *= 2);
adamc@136	1233
adamc@1134	1234 if (next > b->max) {
adamc@1113	1235 if (desired <= b->max)
adamc@1113	1236 next = desired;
adamc@1113	1237 else
adamc@1113	1238 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1239 }
adamc@1113	1240
adamc@666	1241 new_heap = realloc(b->start, next);
adamc@666	1242 b->front = new_heap + (b->front - b->start);
adamc@666	1243 b->back = new_heap + next;
adamc@136	1244
adamc@667	1245 if (new_heap != b->start) {
adamc@666	1246 b->start = new_heap;
adam@1389	1247 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1248 }
adamc@136	1249
adamc@666	1250 b->start = new_heap;
adamc@136	1251 }
adamc@136	1252 }
adamc@136	1253
adamc@832	1254 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1255 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1256 }
adamc@666	1257
adamc@832	1258 char *uw_heap_front(uw_context ctx) {
adamc@832	1259 return ctx->heap.front;
adamc@832	1260 }
adamc@832	1261
adamc@832	1262 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1263 ctx->heap.front = fr;
adamc@832	1264 }
adamc@832	1265
adam@1782	1266 void uw_begin_initializing(uw_context ctx) {
adam@1782	1267 ctx->amInitializing = 1;
adam@1782	1268 }
adam@1782	1269
adam@1782	1270 void uw_end_initializing(uw_context ctx) {
adam@1782	1271 ctx->amInitializing = 0;
adam@1782	1272 }
adam@1782	1273
adam@2013	1274 static void align_heap(uw_context ctx) {
adam@2013	1275 size_t posn = ctx->heap.front - ctx->heap.start;
adam@2013	1276
adam@2017	1277 if (posn % sizeof(void *) != 0) {
adam@2017	1278 size_t bump = sizeof(void ) - posn % sizeof(void );
adam@2013	1279 uw_check_heap(ctx, bump);
adam@2013	1280 ctx->heap.front += bump;
adam@2013	1281 }
adam@2013	1282 }
adam@2013	1283
adamc@311	1284 void *uw_malloc(uw_context ctx, size_t len) {
adam@2013	1285 // On some architectures, it's important that all word-sized memory accesses
adam@2013	1286 // be to word-aligned addresses, so we'll do a little bit of extra work here
adam@2013	1287 // in anticipation of a possible word-aligned access to the address we'll
adam@2013	1288 // return.
adam@2013	1289
adamc@136	1290 void *result;
adamc@136	1291
adam@1782	1292 if (ctx->amInitializing) {
adam@2017	1293 int error = posix_memalign(&result, sizeof(void *), len);
adam@2013	1294
adam@2013	1295 if (!error)
adam@1782	1296 return result;
adam@1782	1297 else
adam@2013	1298 uw_error(ctx, FATAL, "uw_malloc: posix_memalign() returns %d", error);
adam@1782	1299 } else {
adam@2013	1300 align_heap(ctx);
adam@2013	1301
adam@1782	1302 uw_check_heap(ctx, len);
adam@1782	1303
adam@1782	1304 result = ctx->heap.front;
adam@1782	1305 ctx->heap.front += len;
adam@1782	1306 return result;
adam@1782	1307 }
adamc@117	1308 }
adamc@117	1309
adamc@323	1310 void uw_begin_region(uw_context ctx) {
adam@2013	1311 align_heap(ctx);
adam@2013	1312
adamc@666	1313 regions r = (regions ) ctx->heap.front;
adamc@323	1314
adamc@323	1315 uw_check_heap(ctx, sizeof(regions));
adamc@323	1316
adamc@666	1317 ctx->heap.front += sizeof(regions);
adamc@323	1318
adamc@323	1319 r->next = ctx->regions;
adamc@323	1320 ctx->regions = r;
adamc@323	1321 }
adamc@323	1322
adamc@323	1323 void uw_end_region(uw_context ctx) {
adamc@323	1324 regions *r = ctx->regions;
adamc@323	1325
adamc@323	1326 if (r == NULL)
adamc@323	1327 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1328
adamc@666	1329 ctx->heap.front = (char *) r;
adamc@323	1330 ctx->regions = r->next;
adamc@323	1331 }
adamc@323	1332
adamc@324	1333 void uw_memstats(uw_context ctx) {
adam@1369	1334 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1335 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1336 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1337 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1338 }
adamc@324	1339
adam@1915	1340 int uw_pagelen(uw_context ctx) {
adam@1915	1341 return ctx->page.front - ctx->page.start;
adam@1915	1342 }
adam@1915	1343
adamc@311	1344 int uw_send(uw_context ctx, int sock) {
adam@1949	1345 size_t target_length = (ctx->outHeaders.front - ctx->outHeaders.start) + 2 + (ctx->page.front - ctx->page.start);
adam@1949	1346
adam@1949	1347 if (ctx->output_buffer_size < target_length) {
adam@1949	1348 do {
adam@1949	1349 ctx->output_buffer_size *= 2;
adam@1949	1350 } while (ctx->output_buffer_size < target_length);
adam@1949	1351 ctx->output_buffer = realloc(ctx->output_buffer, ctx->output_buffer_size);
adam@1949	1352 }
adam@1949	1353
adam@1949	1354 memcpy(ctx->output_buffer, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adam@1949	1355 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start), "\r\n", 2);
adam@1949	1356 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start) + 2, ctx->page.start, ctx->page.front - ctx->page.start);
adam@1949	1357
adam@1949	1358 return uw_really_send(sock, ctx->output_buffer, target_length);
adamc@462	1359 }
adamc@462	1360
adamc@856	1361 int uw_print(uw_context ctx, int fd) {
adamc@856	1362 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1363
adamc@856	1364 if (n < 0)
adamc@856	1365 return n;
adamc@856	1366
adamc@856	1367 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1368
adamc@856	1369 if (n < 0)
adamc@856	1370 return n;
adamc@856	1371
adamc@856	1372 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1373 }
adamc@856	1374
adamc@860	1375 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1376 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1377
adamc@860	1378 if (n < 0)
adamc@860	1379 return n;
adamc@860	1380
adamc@860	1381 n = output(data, "\r\n", 2);
adamc@860	1382
adamc@860	1383 if (n < 0)
adamc@860	1384 return n;
adamc@860	1385
adamc@860	1386 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1387 }
adamc@860	1388
adamc@462	1389 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1390 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1391 }
adamc@462	1392
adamc@462	1393 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1394 int len = strlen(s);
adamc@462	1395
adamc@462	1396 uw_check_headers(ctx, len + 1);
adamc@666	1397 strcpy(ctx->outHeaders.front, s);
adamc@666	1398 ctx->outHeaders.front += len;
adamc@562	1399 }
adamc@562	1400
adam@1934	1401 int uw_has_contentLength(uw_context ctx) {
adam@1934	1402 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934	1403 }
adam@1934	1404
adamc@1110	1405 void uw_clear_headers(uw_context ctx) {
adam@1369	1406 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1407 }
adamc@1110	1408
adam@1932	1409 void uw_Basis_clear_page(uw_context ctx) {
adam@1932	1410 uw_buffer_reset(&ctx->page);
adam@1932	1411 }
adam@1932	1412
adamc@562	1413 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1414 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1415 }
adamc@562	1416
adamc@562	1417 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1418 int len = strlen(s);
adamc@562	1419
adamc@562	1420 uw_check_script(ctx, len + 1);
adamc@666	1421 strcpy(ctx->script.front, s);
adamc@666	1422 ctx->script.front += len;
adamc@562	1423 }
adamc@562	1424
adam@1446	1425 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1426 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1427 uw_write_script(ctx, "sig=\"");
adam@1671	1428 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1429 uw_write_script(ctx, "\";");
adam@1671	1430 }
adam@1671	1431
adam@1446	1432 return ctx->script.start;
adam@1446	1433 }
adam@1446	1434
adamc@695	1435 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1436 if (s[0] == 0)
adamc@695	1437 return "";
adamc@695	1438 else {
adamc@695	1439 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1440 sprintf(r, " onload='%s'", s);
adamc@695	1441 return r;
adamc@695	1442 }
adamc@695	1443 }
adamc@695	1444
adamc@1042	1445 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1446 if (ctx->script_header[0] == 0)
adamc@1042	1447 return "";
adamc@1042	1448 else {
vshabanoff@1763	1449 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763	1450 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042	1451 return r;
adamc@1042	1452 }
adamc@1042	1453 }
adamc@1042	1454
adamc@694	1455 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1456 if (ctx->client == NULL) {
adamc@736	1457 if (ctx->needs_sig) {
adamc@1094	1458 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1459 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1460 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1461 return r;
adamc@736	1462 }
adamc@736	1463 else
adamc@736	1464 return "";
adamc@736	1465 } else {
adamc@1094	1466 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1467 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1468 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1469 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1470 (ctx->isPost ? "true" : "false"),
adamc@682	1471 ctx->client->id,
adamc@682	1472 ctx->client->pass,
adamc@1094	1473 ctx->app->url_prefix,
adamc@1094	1474 ctx->app->timeout,
adamc@736	1475 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1476 sig,
adamc@736	1477 ctx->needs_sig ? "\";" : "");
adamc@679	1478 return r;
adamc@668	1479 }
adamc@667	1480 }
adamc@667	1481
adamc@574	1482 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1483 char r, s2;
adamc@574	1484
adam@1446	1485 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1486
adamc@666	1487 r = s2 = ctx->heap.front;
adamc@574	1488 *s2++ = '"';
adamc@574	1489
adamc@574	1490 for (; *s; s++) {
adam@1286	1491 unsigned char c = *s;
adamc@574	1492
adamc@574	1493 switch (c) {
adamc@574	1494 case '"':
adamc@574	1495 strcpy(s2, "\\\"");
adamc@574	1496 s2 += 2;
adamc@574	1497 break;
adamc@1027	1498 case '\'':
adamc@1027	1499 strcpy(s2, "\\047");
adamc@1027	1500 s2 += 4;
adamc@1027	1501 break;
adamc@574	1502 case '\\':
adamc@574	1503 strcpy(s2, "\\\\");
adamc@574	1504 s2 += 2;
adamc@574	1505 break;
adam@1457	1506 case '<':
adam@1457	1507 strcpy(s2, "\\074");
adam@1457	1508 s2 += 4;
adam@1457	1509 break;
adamc@574	1510 default:
adam@1286	1511 if (isprint((int)c) \|\| c >= 128)
adamc@574	1512 *s2++ = c;
adamc@574	1513 else {
adam@1429	1514 sprintf(s2, "\\%03o", c);
adamc@574	1515 s2 += 4;
adamc@574	1516 }
adamc@574	1517 }
adamc@574	1518 }
adamc@574	1519
adamc@574	1520 strcpy(s2, "\"");
adamc@910	1521 ctx->heap.front = s2 + 2;
adamc@574	1522 return r;
adamc@574	1523 }
adamc@574	1524
adam@1286	1525 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1526 unsigned char c = c1;
adamc@1025	1527 char r, s2;
adamc@1025	1528
adam@1446	1529 uw_check_heap(ctx, 7);
adamc@1025	1530
adamc@1025	1531 r = s2 = ctx->heap.front;
adamc@1025	1532 *s2++ = '"';
adamc@1025	1533
adamc@1025	1534 switch (c) {
adamc@1025	1535 case '"':
adamc@1025	1536 strcpy(s2, "\\\"");
adamc@1025	1537 s2 += 2;
adamc@1025	1538 break;
adamc@1027	1539 case '\'':
adamc@1027	1540 strcpy(s2, "\\047");
adamc@1027	1541 s2 += 4;
adamc@1027	1542 break;
adamc@1025	1543 case '\\':
adamc@1025	1544 strcpy(s2, "\\\\");
adamc@1025	1545 s2 += 2;
adamc@1025	1546 break;
adam@1457	1547 case '<':
adam@1457	1548 strcpy(s2, "\\074");
adam@1457	1549 s2 += 4;
adam@1457	1550 break;
adamc@1025	1551 default:
adam@1286	1552 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1553 *s2++ = c;
adamc@1025	1554 else {
adam@1429	1555 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1556 s2 += 4;
adamc@1025	1557 }
adamc@1025	1558 }
adamc@1025	1559
adamc@1025	1560 strcpy(s2, "\"");
adamc@1025	1561 ctx->heap.front = s2 + 2;
adamc@1025	1562 return r;
adamc@1025	1563 }
adamc@1025	1564
adamc@574	1565 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1566 char r, s2;
adamc@574	1567
adam@1446	1568 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1569
adamc@666	1570 r = s2 = ctx->script.front;
adamc@574	1571 *s2++ = '"';
adamc@574	1572
adamc@574	1573 for (; *s; s++) {
adam@1286	1574 unsigned char c = *s;
adamc@574	1575
adamc@574	1576 switch (c) {
adamc@577	1577 case '\'':
adamc@1027	1578 strcpy(s2, "\\");
adamc@574	1579 s2 += 2;
adamc@574	1580 break;
adamc@574	1581 case '\\':
adamc@574	1582 strcpy(s2, "\\\\");
adamc@574	1583 s2 += 2;
adamc@574	1584 break;
adam@1457	1585 case '<':
adam@1457	1586 strcpy(s2, "\\074");
adam@1457	1587 s2 += 4;
adam@1457	1588 break;
adamc@574	1589 default:
adam@1286	1590 if (isprint((int)c) \|\| c >= 128)
adamc@574	1591 *s2++ = c;
adamc@574	1592 else {
adam@1429	1593 sprintf(s2, "\\%03o", c);
adamc@574	1594 s2 += 4;
adamc@574	1595 }
adamc@574	1596 }
adamc@574	1597 }
adamc@574	1598
adamc@574	1599 strcpy(s2, "\"");
adamc@666	1600 ctx->script.front = s2 + 1;
adamc@574	1601 return r;
adamc@574	1602 }
adamc@574	1603
adamc@682	1604 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1605 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1606 return "null";
adamc@682	1607 else {
adamc@682	1608 int len;
adamc@682	1609 char *r;
adamc@682	1610
adamc@682	1611 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1612 r = ctx->heap.front;
adamc@682	1613 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1614 ctx->heap.front += len+1;
adamc@682	1615 return r;
adamc@682	1616 }
adamc@682	1617 }
adamc@682	1618
adam@1446	1619 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1620 int len;
adamc@577	1621 size_t s_len = strlen(s);
adamc@562	1622
grrwlf@1998	1623 if(ctx->id < 0)
grrwlf@1998	1624 uw_error(ctx, FATAL, "Attempt to create client source using inappropriate context");
grrwlf@1998	1625
adam@1446	1626 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1627 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1628 ctx->script.front += len;
adamc@666	1629 strcpy(ctx->script.front, s);
adamc@666	1630 ctx->script.front += s_len;
adamc@970	1631 strcpy(ctx->script.front, "));");
adamc@972	1632 ctx->script.front += 3;
adamc@562	1633
adam@1446	1634 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1635 return r;
adam@1446	1636 }
adam@1446	1637
adam@1446	1638 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1639 int len;
adamc@577	1640 size_t s_len = strlen(s);
adamc@577	1641
adam@1446	1642 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1643 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1644 ctx->script.front += len;
adamc@666	1645 strcpy(ctx->script.front, s);
adamc@666	1646 ctx->script.front += s_len;
adamc@970	1647 strcpy(ctx->script.front, "));");
adamc@972	1648 ctx->script.front += 3;
adamc@577	1649
adamc@577	1650 return uw_unit_v;
adamc@577	1651 }
adamc@577	1652
adamc@311	1653 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1654 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1655 }
adamc@117	1656
adamc@311	1657 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1658 *(ctx->page.front)++ = c;
adam@1413	1659 *ctx->page.front = 0;
adamc@117	1660 }
adamc@117	1661
adamc@311	1662 void uw_writec(uw_context ctx, char c) {
adam@1413	1663 uw_check(ctx, 2);
adamc@311	1664 uw_writec_unsafe(ctx, c);
adamc@117	1665 }
adamc@117	1666
adam@2085	1667 void uw_Basis_writec(uw_context ctx, char c) {
adam@2085	1668 uw_writec(ctx, c);
adam@2085	1669 }
adam@2085	1670
adamc@311	1671 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1672 int len = strlen(s);
adamc@666	1673 memcpy(ctx->page.front, s, len);
adamc@666	1674 ctx->page.front += len;
adamc@117	1675 }
adamc@117	1676
adamc@311	1677 void uw_write(uw_context ctx, const char* s) {
adamc@311	1678 uw_check(ctx, strlen(s) + 1);
adamc@311	1679 uw_write_unsafe(ctx, s);
adamc@666	1680 *ctx->page.front = 0;
adamc@102	1681 }
adamc@106	1682
ziv@2204	1683 void uw_recordingStart(uw_context ctx) {
ziv@2204	1684 ctx->recording = ctx->page.front;
ziv@2204	1685 }
ziv@2204	1686
ziv@2204	1687 char *uw_recordingRead(uw_context ctx) {
ziv@2209	1688 return strdup(ctx->recording);
ziv@2204	1689 }
ziv@2204	1690
adamc@311	1691 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1692 char *result;
adamc@136	1693 int len;
adamc@311	1694 uw_check_heap(ctx, INTS_MAX);
adamc@666	1695 result = ctx->heap.front;
adamc@276	1696 sprintf(result, "%lld%n", n, &len);
adamc@666	1697 ctx->heap.front += len+1;
adamc@136	1698 return result;
adamc@106	1699 }
adamc@106	1700
adamc@311	1701 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1702 char *result;
adamc@136	1703 int len;
adamc@311	1704 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1705 result = ctx->heap.front;
adam@1920	1706 sprintf(result, "%.16g%n", n, &len);
adamc@666	1707 ctx->heap.front += len+1;
adamc@136	1708 return result;
adamc@106	1709 }
adamc@106	1710
adamc@311	1711 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1712 int len = strlen(s);
adamc@136	1713 char result, p;
adamc@311	1714 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1715
adamc@666	1716 result = p = ctx->heap.front;
adamc@136	1717
adamc@136	1718 for (; *s; s++) {
adamc@1054	1719 unsigned char c = *s;
adamc@136	1720
adamc@136	1721 if (c == '"') {
adamc@136	1722 strcpy(p, """);
adamc@136	1723 p += 6;
adamc@136	1724 } else if (c == '&') {
adamc@136	1725 strcpy(p, "&");
adamc@136	1726 p += 5;
adamc@136	1727 }
adamc@1059	1728 else
adamc@136	1729 *p++ = c;
adamc@136	1730 }
adamc@136	1731
adamc@137	1732 *p++ = 0;
adamc@666	1733 ctx->heap.front = p;
adamc@136	1734 return result;
adamc@106	1735 }
adamc@106	1736
adamc@1011	1737 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1738 char result, p;
adamc@1011	1739 uw_check_heap(ctx, 7);
adamc@1011	1740
adamc@1011	1741 result = p = ctx->heap.front;
adamc@1011	1742
adamc@1011	1743 if (c == '"') {
adamc@1011	1744 strcpy(p, """);
adamc@1011	1745 p += 6;
adamc@1011	1746 } else if (c == '&') {
adamc@1011	1747 strcpy(p, "&");
adamc@1011	1748 p += 5;
adamc@1011	1749 }
adamc@1059	1750 else
adamc@1011	1751 *p++ = c;
adamc@1011	1752
adamc@1011	1753 *p++ = 0;
adamc@1011	1754 ctx->heap.front = p;
adamc@1011	1755 return result;
adamc@1011	1756 }
adamc@1011	1757
adamc@721	1758 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1759 return s;
adamc@721	1760 }
adamc@721	1761
adamc@311	1762 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1763 int len;
adamc@117	1764
adamc@666	1765 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1766 ctx->page.front += len;
adamc@106	1767 }
adamc@106	1768
adamc@428	1769 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1770 uw_check(ctx, INTS_MAX);
adamc@311	1771 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1772
adamc@428	1773 return uw_unit_v;
adamc@106	1774 }
adamc@106	1775
adamc@428	1776 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1777 int len;
adamc@117	1778
adamc@311	1779 uw_check(ctx, FLOATS_MAX);
adamc@666	1780 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1781 ctx->page.front += len;
adamc@428	1782
adamc@428	1783 return uw_unit_v;
adamc@117	1784 }
adamc@117	1785
adamc@428	1786 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1787 uw_check(ctx, strlen(s) * 6);
adamc@117	1788
adamc@106	1789 for (; *s; s++) {
adamc@1054	1790 unsigned char c = *s;
adamc@106	1791
adamc@106	1792 if (c == '"')
adamc@311	1793 uw_write_unsafe(ctx, """);
adamc@136	1794 else if (c == '&')
adamc@311	1795 uw_write_unsafe(ctx, "&");
adamc@1059	1796 else
adamc@311	1797 uw_writec_unsafe(ctx, c);
adamc@106	1798 }
adamc@428	1799
adamc@428	1800 return uw_unit_v;
adamc@106	1801 }
adamc@120	1802
adamc@1011	1803 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1804 uw_check(ctx, 6);
adamc@1011	1805
adamc@1011	1806 if (c == '"')
adamc@1011	1807 uw_write_unsafe(ctx, """);
adamc@1011	1808 else if (c == '&')
adamc@1011	1809 uw_write_unsafe(ctx, "&");
adamc@1059	1810 else
adamc@1011	1811 uw_writec_unsafe(ctx, c);
adamc@1011	1812
adamc@1011	1813 return uw_unit_v;
adamc@1011	1814 }
adamc@1011	1815
adamc@120	1816
adamc@311	1817 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1818 int len;
adamc@137	1819 char *r;
adamc@137	1820
adamc@311	1821 uw_check_heap(ctx, INTS_MAX);
adamc@666	1822 r = ctx->heap.front;
adamc@276	1823 sprintf(r, "%lld%n", n, &len);
adamc@666	1824 ctx->heap.front += len+1;
adamc@137	1825 return r;
adamc@120	1826 }
adamc@120	1827
adamc@682	1828 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1829 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1830 return "";
adamc@682	1831 else {
adamc@682	1832 int len;
adamc@682	1833 char *r;
adamc@679	1834
adamc@682	1835 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1836 r = ctx->heap.front;
adamc@682	1837 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1838 ctx->heap.front += len+1;
adamc@682	1839 return r;
adamc@682	1840 }
adamc@679	1841 }
adamc@679	1842
adamc@311	1843 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1844 int len;
adamc@137	1845 char *r;
adamc@137	1846
adamc@311	1847 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1848 r = ctx->heap.front;
adamc@137	1849 sprintf(r, "%g%n", n, &len);
adamc@666	1850 ctx->heap.front += len+1;
adamc@137	1851 return r;
adamc@120	1852 }
adamc@120	1853
adamc@311	1854 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1855 char r, p;
adamc@137	1856
adamc@925	1857 if (s[0] == '\0')
adamc@925	1858 return "_";
adamc@925	1859
adamc@925	1860 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1861
adamc@925	1862 r = p = ctx->heap.front;
adamc@925	1863 if (s[0] == '_')
adamc@925	1864 *p++ = '_';
adamc@925	1865
adamc@925	1866 for (; *s; s++) {
adamc@1087	1867 unsigned char c = *s;
adamc@137	1868
adamc@137	1869 if (c == ' ')
adamc@137	1870 *p++ = '+';
adamc@137	1871 else if (isalnum(c))
adamc@137	1872 *p++ = c;
adamc@137	1873 else {
adamc@1259	1874 sprintf(p, ".%02X", c);
adamc@137	1875 p += 3;
adamc@137	1876 }
adamc@137	1877 }
adamc@137	1878
adamc@137	1879 *p++ = 0;
adamc@666	1880 ctx->heap.front = p;
adamc@137	1881 return r;
adamc@120	1882 }
adamc@120	1883
adamc@311	1884 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1885 if (b == uw_Basis_False)
adamc@186	1886 return "0";
adamc@186	1887 else
adamc@186	1888 return "1";
adamc@186	1889 }
adamc@186	1890
adam@1620	1891 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1892 char *r;
adam@1620	1893 int len;
adam@1620	1894 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1895 r = ctx->heap.front;
adam@1620	1896 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1897 ctx->heap.front += len+1;
adam@1620	1898 return r;
adam@1620	1899 }
adam@1620	1900
adamc@311	1901 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1902 int len;
adamc@120	1903
adamc@666	1904 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1905 ctx->page.front += len;
adamc@120	1906 }
adamc@120	1907
adamc@428	1908 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1909 uw_check(ctx, INTS_MAX);
adamc@311	1910 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1911
adamc@428	1912 return uw_unit_v;
adamc@120	1913 }
adamc@120	1914
adamc@682	1915 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1916 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1917 int len;
phurst@1981	1918
adamc@682	1919 uw_check(ctx, INTS_MAX + 1);
adamc@682	1920 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1921 ctx->page.front += len;
adamc@682	1922 }
phurst@1981	1923
adamc@679	1924 return uw_unit_v;
adamc@679	1925 }
adamc@679	1926
adamc@428	1927 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1928 int len;
adamc@120	1929
adamc@311	1930 uw_check(ctx, FLOATS_MAX);
adamc@666	1931 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1932 ctx->page.front += len;
adamc@428	1933
adamc@428	1934 return uw_unit_v;
adamc@120	1935 }
adamc@120	1936
adamc@488	1937 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1938 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1939 }
adamc@488	1940
adam@1404	1941 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1942 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1943 }
adam@1404	1944
adamc@428	1945 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1946 if (s[0] == '\0') {
adamc@925	1947 uw_check(ctx, 1);
adamc@925	1948 uw_writec_unsafe(ctx, '_');
adamc@925	1949 return uw_unit_v;
adamc@925	1950 }
adamc@925	1951
adamc@925	1952 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1953
adamc@925	1954 if (s[0] == '_')
adamc@925	1955 uw_writec_unsafe(ctx, '_');
adamc@120	1956
adamc@120	1957 for (; *s; s++) {
adamc@1087	1958 unsigned char c = *s;
adamc@120	1959
adamc@120	1960 if (c == ' ')
adamc@311	1961 uw_writec_unsafe(ctx, '+');
adamc@120	1962 else if (isalnum(c))
adamc@311	1963 uw_writec_unsafe(ctx, c);
adamc@120	1964 else {
adamc@1259	1965 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1966 ctx->page.front += 3;
adamc@120	1967 }
adamc@120	1968 }
adamc@428	1969
adamc@428	1970 return uw_unit_v;
adamc@120	1971 }
adamc@120	1972
adamc@428	1973 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1974 if (b == uw_Basis_False)
adamc@311	1975 uw_writec(ctx, '0');
adamc@186	1976 else
adamc@311	1977 uw_writec(ctx, '1');
adamc@428	1978
adamc@428	1979 return uw_unit_v;
adamc@186	1980 }
adamc@186	1981
adam@1620	1982 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	1983 int len;
phurst@1981	1984
adam@1620	1985 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	1986 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1987 ctx->page.front += len;
phurst@1981	1988
adam@1620	1989 return uw_unit_v;
adam@1620	1990 }
adam@1620	1991
adamc@120	1992
adamc@311	1993 static char uw_unurlify_advance(char s) {
adamc@144	1994 char *new_s = strchr(s, '/');
adamc@120	1995
adamc@120	1996 if (new_s)
adamc@120	1997 *new_s++ = 0;
adamc@120	1998 else
adamc@144	1999 new_s = strchr(s, 0);
adamc@144	2000
adamc@144	2001 return new_s;
adamc@144	2002 }
adamc@144	2003
adamc@311	2004 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	2005 char new_s = uw_unurlify_advance(s);
adamc@311	2006 uw_Basis_int r;
adamc@120	2007
adamc@276	2008 r = atoll(*s);
adamc@120	2009 *s = new_s;
adamc@120	2010 return r;
adamc@120	2011 }
adamc@120	2012
adamc@311	2013 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	2014 char new_s = uw_unurlify_advance(s);
adamc@311	2015 uw_Basis_float r;
adamc@120	2016
adamc@120	2017 r = atof(*s);
adamc@120	2018 *s = new_s;
adamc@120	2019 return r;
adamc@120	2020 }
adamc@120	2021
adamc@488	2022 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	2023 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	2024 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	2025 return r;
adamc@488	2026 }
adamc@488	2027
adamc@1023	2028 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	2029 char s1, s2 = s;
adamc@144	2030 int n;
adamc@136	2031
adamc@1023	2032 if (!fromClient) {
adamc@1023	2033 if (*s2 == '_')
adamc@1023	2034 ++s2;
adamc@1259	2035 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	2036 s2 += 3;
adamc@1023	2037 }
adamc@925	2038
adamc@927	2039 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	2040 unsigned char c = *s2;
adamc@136	2041
adamc@136	2042 switch (c) {
adamc@136	2043 case '+':
adamc@136	2044 *s1 = ' ';
adamc@136	2045 break;
adamc@136	2046 case '%':
adamc@169	2047 if (s2[1] == 0)
adamc@311	2048 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	2049 if (s2[2] == 0)
adamc@311	2050 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	2051 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2052 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	2053 *s1 = n;
adamc@136	2054 s2 += 2;
adamc@136	2055 break;
adamc@1259	2056 case '.':
adamc@1259	2057 if (!fromClient) {
adamc@1259	2058 if (s2[1] == 0)
adamc@1259	2059 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	2060 if (s2[2] == 0)
adamc@1259	2061 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	2062 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2063 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	2064 *s1 = n;
adamc@1259	2065 s2 += 2;
adamc@1259	2066 break;
adamc@1259	2067 }
adamc@136	2068 default:
adamc@136	2069 *s1 = c;
adamc@136	2070 }
adamc@136	2071 }
adamc@136	2072 *s1++ = 0;
adamc@144	2073 return s1;
adamc@144	2074 }
adamc@144	2075
adamc@311	2076 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	2077 char new_s = uw_unurlify_advance(s);
adamc@311	2078 uw_Basis_bool r;
phurst@1981	2079
adamc@186	2080 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2081 r = uw_Basis_False;
adamc@186	2082 else
adamc@311	2083 r = uw_Basis_True;
adamc@186	2084
adamc@186	2085 *s = new_s;
adamc@186	2086 return r;
adamc@186	2087 }
adamc@186	2088
adamc@311	2089 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2090 char new_s = uw_unurlify_advance(s);
adamc@1134	2091 char *r;
adamc@1134	2092 int len;
adamc@144	2093
adamc@200	2094 len = strlen(*s);
adamc@311	2095 uw_check_heap(ctx, len + 1);
adamc@144	2096
adamc@666	2097 r = ctx->heap.front;
adamc@1023	2098 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2099 *s = new_s;
adamc@1023	2100 return r;
adamc@1023	2101 }
adamc@1023	2102
adamc@1109	2103 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2104 s = uw_unurlify_advance(s);
adamc@1109	2105 return uw_unit_v;
adamc@1109	2106 }
adamc@1109	2107
adamc@1023	2108 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2109 char new_s = uw_unurlify_advance(s);
adamc@1134	2110 char *r;
adamc@1134	2111 int len;
adamc@1023	2112
adamc@1023	2113 len = strlen(*s);
adamc@1023	2114 uw_check_heap(ctx, len + 1);
adamc@1023	2115
adamc@1023	2116 r = ctx->heap.front;
adamc@1023	2117 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2118 *s = new_s;
adamc@136	2119 return r;
adamc@120	2120 }
adamc@135	2121
adamc@135	2122
adamc@311	2123 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2124 int len;
adamc@286	2125 char *r;
adamc@286	2126
adamc@311	2127 uw_check_heap(ctx, INTS_MAX);
adamc@666	2128 r = ctx->heap.front;
adamc@286	2129 sprintf(r, "%lld%n", n, &len);
adamc@666	2130 ctx->heap.front += len+1;
adamc@286	2131 return r;
adamc@286	2132 }
adamc@286	2133
adamc@428	2134 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2135 int len;
adamc@286	2136
adamc@311	2137 uw_check(ctx, INTS_MAX);
adamc@666	2138 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2139 ctx->page.front += len;
phurst@1981	2140
adamc@428	2141 return uw_unit_v;
adamc@286	2142 }
adamc@286	2143
adam@1358	2144 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2145 unsigned int n = ch;
adam@1358	2146 int len;
adam@1358	2147 char *r;
adam@1358	2148
adam@1358	2149 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2150 r = ctx->heap.front;
adam@1358	2151 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2152 ctx->heap.front += len+1;
adam@1358	2153 return r;
adam@1358	2154 }
adam@1358	2155
adam@1358	2156 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2157 unsigned int n = ch;
adam@1358	2158 int len;
adam@1358	2159
adam@1358	2160 uw_check(ctx, INTS_MAX+3);
adam@1358	2161 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2162 ctx->page.front += len;
adam@1358	2163 return uw_unit_v;
adam@1358	2164 }
adam@1358	2165
adamc@311	2166 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2167 int len;
adamc@286	2168 char *r;
adamc@286	2169
adamc@311	2170 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2171 r = ctx->heap.front;
adamc@286	2172 sprintf(r, "%g%n", n, &len);
adamc@666	2173 ctx->heap.front += len+1;
adamc@286	2174 return r;
adamc@286	2175 }
adamc@286	2176
adamc@428	2177 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2178 int len;
adamc@286	2179
adamc@311	2180 uw_check(ctx, FLOATS_MAX);
adamc@666	2181 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2182 ctx->page.front += len;
adamc@428	2183
adamc@428	2184 return uw_unit_v;
adamc@286	2185 }
adamc@286	2186
adam@1365	2187 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2188 int len;
adam@1360	2189 char *r;
adam@1360	2190
adam@1360	2191 uw_check_heap(ctx, INTS_MAX);
adam@1360	2192 r = ctx->heap.front;
adamc@1377	2193 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2194 ctx->heap.front += len+1;
adam@1360	2195 return r;
adam@1360	2196 }
adam@1360	2197
adam@1365	2198 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2199 int len;
adam@1360	2200
adam@1360	2201 uw_check(ctx, INTS_MAX);
adam@1360	2202 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2203 ctx->page.front += len;
phurst@1981	2204
adam@1360	2205 return uw_unit_v;
adam@1360	2206 }
adam@1360	2207
adam@1444	2208 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2209 char r, s2;
adamc@137	2210
adamc@311	2211 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2212
adamc@666	2213 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2214 unsigned char c = *s;
adamc@137	2215
adamc@137	2216 switch (c) {
adamc@137	2217 case '<':
adamc@137	2218 strcpy(s2, "<");
adamc@137	2219 s2 += 4;
adamc@137	2220 break;
adamc@137	2221 case '&':
adamc@137	2222 strcpy(s2, "&");
adamc@137	2223 s2 += 5;
adamc@137	2224 break;
adamc@137	2225 default:
adamc@1059	2226 *s2++ = c;
adamc@137	2227 }
adamc@137	2228 }
adamc@137	2229
adamc@137	2230 *s2++ = 0;
adamc@666	2231 ctx->heap.front = s2;
adamc@137	2232 return r;
adamc@135	2233 }
adamc@135	2234
adamc@428	2235 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2236 uw_check(ctx, strlen(s) * 6);
adamc@135	2237
adamc@135	2238 for (; *s; s++) {
adamc@1054	2239 unsigned char c = *s;
adamc@135	2240
adamc@135	2241 switch (c) {
adamc@135	2242 case '<':
adamc@311	2243 uw_write_unsafe(ctx, "<");
adamc@135	2244 break;
adamc@135	2245 case '&':
adamc@311	2246 uw_write_unsafe(ctx, "&");
adamc@135	2247 break;
adamc@135	2248 default:
adamc@1059	2249 uw_writec_unsafe(ctx, c);
adamc@135	2250 }
adamc@135	2251 }
adamc@428	2252
adamc@428	2253 return uw_unit_v;
adamc@135	2254 }
adamc@180	2255
adamc@311	2256 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2257 if (b == uw_Basis_False)
adamc@286	2258 return "False";
adamc@286	2259 else
adamc@286	2260 return "True";
adamc@286	2261 }
adamc@286	2262
adamc@428	2263 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2264 if (b == uw_Basis_False) {
adamc@311	2265 uw_check(ctx, 6);
adamc@666	2266 strcpy(ctx->page.front, "False");
adamc@666	2267 ctx->page.front += 5;
adamc@286	2268 } else {
adamc@311	2269 uw_check(ctx, 5);
adamc@666	2270 strcpy(ctx->page.front, "True");
adamc@666	2271 ctx->page.front += 4;
adamc@286	2272 }
adamc@428	2273
adamc@428	2274 return uw_unit_v;
adamc@286	2275 }
adamc@286	2276
adamc@436	2277 #define TIME_FMT "%x %X"
adamc@438	2278 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2279 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2280
adam@1629	2281 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2282
adamc@436	2283 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2284 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2285 }
adamc@436	2286
adamc@436	2287 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2288 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2289 }
adamc@436	2290
adam@1446	2291 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2292 int len;
adam@1446	2293 char *r;
adam@1446	2294
adam@1446	2295 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2296 r = ctx->heap.front;
adam@1446	2297 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2298 ctx->heap.front += len+1;
adam@1446	2299 return r;
adam@1446	2300 }
adam@1446	2301
adam@1446	2302 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2303 int len;
adam@1446	2304
adam@1446	2305 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2306 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2307 ctx->page.front += len;
phurst@1981	2308
adam@1446	2309 return uw_unit_v;
adam@1446	2310 }
adam@1446	2311
adamc@821	2312 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2313 while (n >= 0) {
adam@1388	2314 if (*s == 0)
adam@1388	2315 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2316
adam@1388	2317 if (n == 0)
adam@1388	2318 return *s;
adam@1388	2319
adam@1388	2320 --n;
adam@1388	2321 ++s;
adam@1388	2322 }
adam@1388	2323
adam@1388	2324 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2325 }
adamc@821	2326
adamc@821	2327 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2328 while (n >= 0) {
adam@1388	2329 if (*s == 0 \|\| n == 0)
adam@1388	2330 return s;
adam@1388	2331
adam@1388	2332 --n;
adam@1388	2333 ++s;
adam@1388	2334 }
adam@1388	2335
adam@1388	2336 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2337 }
adamc@821	2338
adamc@828	2339 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2340 return strlen(s);
adamc@828	2341 }
adamc@828	2342
adam@1388	2343 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2344 while (n > 0) {
adam@1388	2345 if (*s == 0)
adam@1388	2346 return uw_Basis_False;
adam@1388	2347
adam@1388	2348 --n;
adam@1388	2349 ++s;
adam@1388	2350 }
adam@1388	2351
adam@1388	2352 return uw_Basis_True;
adam@1388	2353 }
adam@1388	2354
adamc@829	2355 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2356 return strchr(s, ch);
adamc@829	2357 }
adamc@829	2358
adamc@831	2359 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2360 return strcspn(s, chs);
adamc@831	2361 }
adamc@831	2362
adamc@829	2363 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2364 uw_Basis_string r = strchr(s, ch);
adamc@829	2365 if (r == NULL)
adamc@829	2366 return NULL;
adamc@829	2367 else {
adamc@829	2368 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2369 *nr = r - s;
adamc@829	2370 return nr;
adamc@829	2371 }
adamc@829	2372 }
adamc@829	2373
adam@1390	2374 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2375 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2376 if (r == NULL)
adam@1390	2377 return NULL;
adam@1390	2378 else {
adam@1390	2379 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2380 *nr = r - haystack;
adam@1390	2381 return nr;
adam@1390	2382 }
adam@1390	2383 }
adam@1390	2384
adamc@311	2385 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2386 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2387 char *s;
adamc@180	2388
adamc@311	2389 uw_check_heap(ctx, len);
adamc@180	2390
adamc@666	2391 s = ctx->heap.front;
adamc@180	2392
adamc@180	2393 strcpy(s, s1);
adamc@180	2394 strcat(s, s2);
adamc@666	2395 ctx->heap.front += len;
adamc@180	2396
adamc@180	2397 return s;
adamc@180	2398 }
adamc@278	2399
adamc@829	2400 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2401 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2402
adamc@829	2403 if (start < 0)
adamc@829	2404 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2405 if (len < 0)
adamc@829	2406 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2407 if (start + len > full_len)
adamc@829	2408 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2409
adamc@829	2410 if (start + len == full_len)
adamc@829	2411 return &s[start];
adamc@829	2412 else {
adamc@829	2413 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2414 memcpy(r, s+start, len);
adamc@829	2415 r[len] = 0;
adamc@829	2416 return r;
adamc@829	2417 }
phurst@1981	2418
adamc@829	2419 }
adamc@829	2420
adamc@1023	2421 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2422 char *r;
adamc@1023	2423
adamc@1023	2424 uw_check_heap(ctx, 2);
adamc@1023	2425 r = ctx->heap.front;
adamc@1023	2426 r[0] = ch;
adamc@1023	2427 r[1] = 0;
adamc@1023	2428
adamc@1023	2429 ctx->heap.front += 2;
adamc@1023	2430
adamc@1023	2431 return r;
adamc@1023	2432 }
adamc@1023	2433
adamc@737	2434 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2435 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2436 char *s;
adamc@278	2437
adamc@311	2438 uw_check_heap(ctx, len);
adamc@278	2439
adamc@666	2440 s = ctx->heap.front;
adamc@278	2441
adamc@278	2442 strcpy(s, s1);
adamc@666	2443 ctx->heap.front += len;
adamc@278	2444
adamc@278	2445 return s;
adamc@278	2446 }
adamc@280	2447
adam@1295	2448 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2449 if (ctx->error_message[0]) {
adam@1295	2450 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2451 ctx->error_message[0] = 0;
adam@1295	2452 return s;
adam@1295	2453 } else
adam@1295	2454 return NULL;
adam@1295	2455 }
adam@1295	2456
adamc@737	2457 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2458 if (s1)
adamc@737	2459 return uw_strdup(ctx, s1);
adamc@493	2460 else
adamc@493	2461 return NULL;
adamc@493	2462 }
adamc@493	2463
adamc@742	2464 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2465 char *r = uw_malloc(ctx, len);
adamc@742	2466 memcpy(r, p, len);
adamc@742	2467 return r;
adamc@742	2468 }
adamc@280	2469
adamc@879	2470 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2471
adamc@311	2472 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2473 int len;
adamc@281	2474 char *r;
adamc@281	2475
adamc@311	2476 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2477 r = ctx->heap.front;
adamc@879	2478 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2479 ctx->heap.front += len+1;
adamc@281	2480 return r;
adamc@281	2481 }
adamc@281	2482
adamc@467	2483 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2484 if (n == NULL)
adamc@467	2485 return "NULL";
adamc@467	2486 else
adamc@467	2487 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2488 }
adamc@467	2489
adam@1920	2490 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879	2491
adamc@311	2492 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2493 int len;
adamc@281	2494 char *r;
adamc@281	2495
adamc@311	2496 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2497 r = ctx->heap.front;
adamc@879	2498 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2499 ctx->heap.front += len+1;
adamc@281	2500 return r;
adamc@281	2501 }
adamc@281	2502
adamc@467	2503 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2504 if (n == NULL)
adamc@467	2505 return "NULL";
adamc@467	2506 else
adamc@467	2507 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2508 }
adamc@467	2509
adam@1834	2510 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2511 char *uw_sqlsuffixString = "::text";
adamc@1011	2512 char *uw_sqlsuffixChar = "::char";
adamc@281	2513
adamc@311	2514 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2515 char r, s2;
adamc@280	2516
adamc@879	2517 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2518
adamc@666	2519 r = s2 = ctx->heap.front;
adamc@879	2520 if (uw_Estrings)
adamc@879	2521 *s2++ = 'E';
adamc@280	2522 *s2++ = '\'';
adamc@280	2523
adamc@280	2524 for (; *s; s++) {
adamc@280	2525 char c = *s;
adamc@280	2526
adamc@280	2527 switch (c) {
adamc@280	2528 case '\'':
adamc@885	2529 if (uw_Estrings)
adamc@885	2530 strcpy(s2, "\\'");
adamc@885	2531 else
adamc@885	2532 strcpy(s2, "''");
adamc@280	2533 s2 += 2;
adamc@280	2534 break;
adamc@280	2535 case '\\':
adamc@885	2536 if (uw_Estrings) {
adamc@885	2537 strcpy(s2, "\\\\");
adamc@885	2538 s2 += 2;
adamc@885	2539 } else
adamc@885	2540 *s2++ = '\\';
adamc@280	2541 break;
adamc@280	2542 default:
adamc@1150	2543 if (isprint((int)c))
adamc@280	2544 *s2++ = c;
adamc@879	2545 else if (uw_Estrings) {
adam@1857	2546 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2547 s2 += 4;
adamc@280	2548 }
adamc@879	2549 else
adam@1689	2550 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2551 }
adamc@280	2552 }
adamc@280	2553
adamc@879	2554 *s2++ = '\'';
adamc@879	2555 strcpy(s2, uw_sqlsuffixString);
adamc@879	2556 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2557 return r;
adamc@280	2558 }
adamc@281	2559
adamc@1011	2560 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2561 char r, s2;
adamc@1011	2562
adamc@1011	2563 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2564
adamc@1011	2565 r = s2 = ctx->heap.front;
adamc@1011	2566 if (uw_Estrings)
adamc@1011	2567 *s2++ = 'E';
adamc@1011	2568 *s2++ = '\'';
adamc@1011	2569
adamc@1011	2570 switch (c) {
adamc@1011	2571 case '\'':
adamc@1011	2572 if (uw_Estrings)
adamc@1011	2573 strcpy(s2, "\\'");
adamc@1011	2574 else
adamc@1011	2575 strcpy(s2, "''");
adamc@1011	2576 s2 += 2;
adamc@1011	2577 break;
adamc@1011	2578 case '\\':
adamc@1011	2579 if (uw_Estrings) {
adamc@1011	2580 strcpy(s2, "\\\\");
adamc@1011	2581 s2 += 2;
adamc@1011	2582 } else
adamc@1011	2583 *s2++ = '\\';
adamc@1011	2584 break;
adamc@1011	2585 default:
adamc@1150	2586 if (isprint((int)c))
adamc@1011	2587 *s2++ = c;
adamc@1011	2588 else if (uw_Estrings) {
adam@1857	2589 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2590 s2 += 4;
adamc@1011	2591 }
adamc@1011	2592 else
adamc@1011	2593 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2594 }
adamc@1011	2595
adamc@1011	2596 *s2++ = '\'';
adamc@1011	2597 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2598 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2599 return r;
adamc@1011	2600 }
adamc@1011	2601
adamc@879	2602 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2603
adam@1867	2604 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2605 char r, s2;
adamc@737	2606 size_t i;
adamc@737	2607
adam@1867	2608 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2609
adamc@737	2610 r = s2 = ctx->heap.front;
adamc@879	2611 if (uw_Estrings)
adamc@879	2612 *s2++ = 'E';
adam@1867	2613 else
adam@1867	2614 *s2++ = 'X';
adamc@737	2615 *s2++ = '\'';
adamc@737	2616
adamc@737	2617 for (i = 0; i < b.size; ++i) {
adam@1867	2618 unsigned char c = b.data[i];
adam@1867	2619
adam@1867	2620 if (uw_Estrings) {
adam@1867	2621 switch (c) {
adam@1867	2622 case '\'':
adamc@885	2623 strcpy(s2, "\\'");
adam@1867	2624 s2 += 2;
adam@1867	2625 break;
adam@1867	2626 case '\\':
adamc@885	2627 strcpy(s2, "\\\\\\\\");
adamc@885	2628 s2 += 4;
adam@1867	2629 break;
adam@1867	2630 default:
adam@1867	2631 if (isprint((int)c))
adam@1867	2632 *s2++ = c;
adam@1867	2633 else {
adam@1867	2634 sprintf(s2, "\\\\%03o", c);
adam@1867	2635 s2 += 5;
adam@1867	2636 }
adamc@737	2637 }
adam@1867	2638 } else {
adam@1867	2639 sprintf(s2, "%02X", c);
adam@1867	2640 s2 += 2;
adamc@737	2641 }
phurst@1981	2642 }
adamc@737	2643
adamc@879	2644 *s2++ = '\'';
adamc@879	2645 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2646 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2647 return r;
adamc@737	2648 }
adamc@737	2649
adamc@682	2650 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2651 int len;
adamc@682	2652 char *r;
adamc@682	2653 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2654
adamc@682	2655 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2656 r = ctx->heap.front;
adamc@879	2657 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2658 ctx->heap.front += len+1;
adamc@682	2659 return r;
adamc@682	2660 }
adamc@682	2661
adamc@682	2662 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2663 int len;
adamc@682	2664 char *r;
adamc@682	2665 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2666
adamc@682	2667 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2668 r = ctx->heap.front;
adamc@682	2669 sprintf(r, "%lld%n", combo, &len);
adamc@682	2670 ctx->heap.front += len+1;
adamc@682	2671 return r;
adamc@682	2672 }
adamc@682	2673
adamc@879	2674 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2675
adamc@682	2676 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2677 int len;
adamc@682	2678 char *r;
adamc@682	2679
adamc@682	2680 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2681 r = ctx->heap.front;
adamc@879	2682 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2683 ctx->heap.front += len+1;
adamc@682	2684 return r;
adamc@682	2685 }
adamc@682	2686
adamc@682	2687 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2688 int len;
adamc@682	2689 char *r;
adamc@682	2690
adamc@682	2691 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2692 r = ctx->heap.front;
adamc@682	2693 sprintf(r, "%u%n", cli, &len);
adamc@682	2694 ctx->heap.front += len+1;
adamc@682	2695 return r;
adamc@682	2696 }
adamc@682	2697
adamc@467	2698 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2699 if (s == NULL)
adamc@467	2700 return "NULL";
adamc@467	2701 else
adamc@467	2702 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2703 }
adamc@467	2704
adamc@311	2705 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2706 if (b == uw_Basis_False)
adamc@281	2707 return "FALSE";
adamc@281	2708 else
adamc@281	2709 return "TRUE";
adamc@281	2710 }
adamc@282	2711
adamc@467	2712 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2713 if (b == NULL)
adamc@467	2714 return "NULL";
adamc@467	2715 else
adamc@467	2716 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2717 }
adamc@467	2718
adamc@439	2719 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2720 size_t len;
adamc@682	2721 char r, s;
adam@1392	2722 struct tm stm = {};
adam@1392	2723 stm.tm_isdst = -1;
adamc@682	2724
adam@1365	2725 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2726 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2727 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2728 if (uw_sql_type_annotations) {
adam@1834	2729 if (t.microseconds) {
adam@1834	2730 r = uw_malloc(ctx, len + 21);
adam@1834	2731 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2732 } else {
adam@1834	2733 r = uw_malloc(ctx, len + 14);
adam@1834	2734 sprintf(r, "'%s'::timestamp", s);
adam@1834	2735 }
adam@1367	2736 } else {
adam@1834	2737 r = uw_malloc(ctx, len + 3);
adam@1834	2738 sprintf(r, "'%s'", s);
adam@1367	2739 }
adamc@682	2740 return r;
adamc@682	2741 } else
adamc@682	2742 return "<Invalid time>";
adamc@682	2743 }
adamc@682	2744
adamc@682	2745 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2746 size_t len;
adamc@439	2747 char *r;
adam@1392	2748 struct tm stm = {};
adam@1392	2749 stm.tm_isdst = -1;
adamc@439	2750
adam@1365	2751 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2752 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2753 r = ctx->heap.front;
adamc@439	2754 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2755 ctx->heap.front += len+1;
adamc@439	2756 return r;
adamc@439	2757 } else
adamc@439	2758 return "<Invalid time>";
adamc@439	2759 }
adamc@439	2760
adam@1364	2761 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2762 size_t len;
adam@1364	2763 char *r;
adam@1392	2764 struct tm stm = {};
adam@1392	2765 stm.tm_isdst = -1;
adam@1364	2766
adam@1365	2767 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2768 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2769 r = ctx->heap.front;
adam@1365	2770 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2771 ctx->heap.front += len;
adam@1365	2772 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2773 ctx->heap.front += 8;
adam@1364	2774 return r;
adam@1364	2775 } else
adam@1364	2776 return "<Invalid time>";
adam@1364	2777 }
adam@1364	2778
adamc@467	2779 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2780 if (t == NULL)
adamc@467	2781 return "NULL";
adamc@467	2782 else
adamc@467	2783 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2784 }
adamc@467	2785
adamc@311	2786 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2787 static uw_Basis_int true = 1;
adamc@311	2788 static uw_Basis_int false = 0;
adamc@282	2789
adamc@311	2790 if (b == uw_Basis_False)
adamc@282	2791 return (char *)&false;
adamc@282	2792 else
adamc@282	2793 return (char *)&true;
adamc@282	2794 }
adamc@284	2795
adamc@311	2796 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2797 int len;
adamc@284	2798 char *r;
adamc@284	2799
adamc@311	2800 uw_check_heap(ctx, INTS_MAX);
adamc@666	2801 r = ctx->heap.front;
adamc@284	2802 sprintf(r, "%lld%n", n, &len);
adamc@666	2803 ctx->heap.front += len+1;
adamc@284	2804 return r;
adamc@284	2805 }
adamc@285	2806
adamc@311	2807 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2808 int len;
adamc@285	2809 char *r;
adamc@285	2810
adamc@311	2811 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2812 r = ctx->heap.front;
adamc@285	2813 sprintf(r, "%g%n", n, &len);
adamc@666	2814 ctx->heap.front += len+1;
adamc@285	2815 return r;
adamc@285	2816 }
adamc@285	2817
adamc@821	2818 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2819 char *r = uw_malloc(ctx, 2);
adamc@821	2820 r[0] = ch;
adamc@821	2821 r[1] = 0;
adamc@821	2822 return r;
adamc@821	2823 }
adamc@821	2824
adamc@311	2825 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2826 if (b == uw_Basis_False)
adamc@285	2827 return "False";
adamc@285	2828 else
adamc@285	2829 return "True";
adamc@285	2830 }
adamc@288	2831
adam@1359	2832 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2833 size_t len;
adam@1352	2834 char *r;
adam@1392	2835 struct tm stm = {};
adam@1392	2836 stm.tm_isdst = -1;
adam@1352	2837
adam@1365	2838 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2839 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2840 r = ctx->heap.front;
adam@1352	2841 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2842 ctx->heap.front += len+1;
adam@1352	2843 return r;
adam@1352	2844 } else
adam@1352	2845 return "<Invalid time>";
adam@1352	2846 }
adam@1352	2847
adam@1629	2848 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2849 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2850 }
adam@1629	2851
adamc@311	2852 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2853 char *endptr;
adamc@311	2854 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2855
adamc@288	2856 if (s != '\0' && endptr == '\0') {
adamc@311	2857 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2858 *r = n;
adamc@288	2859 return r;
adamc@288	2860 } else
adamc@288	2861 return NULL;
adamc@288	2862 }
adamc@289	2863
adamc@311	2864 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2865 char *endptr;
adamc@311	2866 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2867
adamc@289	2868 if (s != '\0' && endptr == '\0') {
adamc@311	2869 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2870 *r = n;
adamc@289	2871 return r;
adamc@289	2872 } else
adamc@289	2873 return NULL;
adamc@289	2874 }
adamc@289	2875
adamc@821	2876 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2877 if (s[0] == 0) {
adamc@821	2878 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2879 r[0] = 0;
adamc@821	2880 return r;
adamc@821	2881 } else if (s[1] != 0)
adamc@821	2882 return NULL;
adamc@821	2883 else {
adamc@821	2884 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2885 r[0] = s[0];
adamc@821	2886 return r;
adamc@821	2887 }
adamc@821	2888 }
adamc@821	2889
adamc@311	2890 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2891 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2892 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2893
adamc@289	2894 if (!strcasecmp (s, "True"))
adamc@289	2895 return &true;
adamc@289	2896 else if (!strcasecmp (s, "False"))
adamc@289	2897 return &false;
adamc@289	2898 else
adamc@289	2899 return NULL;
adamc@289	2900 }
adamc@292	2901
adamc@436	2902 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2903 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2904 struct tm stm = {};
adam@1392	2905 stm.tm_isdst = -1;
adamc@436	2906
adamc@439	2907 if (dot) {
adamc@439	2908 *dot = 0;
adamc@439	2909 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2910 *dot = '.';
adamc@439	2911 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2912 r->seconds = mktime(&stm);
adam@1365	2913 r->microseconds = 0;
adamc@439	2914 return r;
adamc@439	2915 }
adamc@439	2916 else {
adamc@439	2917 *dot = '.';
adamc@439	2918 return NULL;
adamc@439	2919 }
adamc@436	2920 }
adamc@439	2921 else {
adam@2072	2922 if (strptime(s, ctx->app->time_format, &stm) == end) {
adamc@439	2923 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2924 r->seconds = mktime(&stm);
adam@1365	2925 r->microseconds = 0;
adamc@439	2926 return r;
adam@2072	2927 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@2072	2928 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@2072	2929 r->seconds = mktime(&stm);
adam@2072	2930 r->microseconds = 0;
adam@2072	2931 return r;
adam@2072	2932 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2933 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2934 r->seconds = mktime(&stm);
adam@1365	2935 r->microseconds = 0;
adamc@439	2936 return r;
adam@1632	2937 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2938 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2939 r->seconds = mktime(&stm);
adam@1632	2940 r->microseconds = 0;
adam@1632	2941 return r;
adamc@439	2942 }
adamc@439	2943 else
adamc@439	2944 return NULL;
adamc@439	2945 }
adamc@436	2946 }
adamc@436	2947
adam@1352	2948 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2949 char *end = strchr(s, 0);
adam@1374	2950 struct tm stm = {};
adam@1392	2951 stm.tm_isdst = -1;
adam@1352	2952
adam@1352	2953 if (strptime(s, fmt, &stm) == end) {
adam@1352	2954 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2955 r->seconds = mktime(&stm);
adam@1365	2956 r->microseconds = 0;
adam@1352	2957 return r;
adam@1352	2958 }
adam@1352	2959 else
adam@1352	2960 return NULL;
adam@1352	2961 }
adam@1352	2962
adamc@311	2963 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2964 char *endptr;
adamc@311	2965 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2966
adamc@292	2967 if (s != '\0' && endptr == '\0')
adamc@292	2968 return n;
adamc@292	2969 else
adam@1444	2970 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2971 }
adamc@293	2972
adamc@682	2973 #include <errno.h>
adamc@682	2974
adamc@678	2975 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2976 unsigned long long n;
adamc@682	2977
adamc@682	2978 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2979 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	2980 else {
adamc@682	2981 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2982 return ch;
adamc@682	2983 }
adamc@682	2984 }
adamc@682	2985
adamc@682	2986 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2987 char *endptr;
adamc@682	2988 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2989
adamc@678	2990 if (s != '\0' && endptr == '\0')
adamc@678	2991 return n;
adamc@678	2992 else
adam@1444	2993 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	2994 }
adamc@678	2995
adamc@311	2996 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2997 char *endptr;
adamc@311	2998 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2999
adamc@293	3000 if (s != '\0' && endptr == '\0')
adamc@293	3001 return n;
adamc@293	3002 else
adam@1444	3003 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3004 }
adamc@293	3005
adamc@821	3006 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	3007 if (s[0] == 0)
adamc@821	3008 return 0;
adamc@821	3009 else if (s[1] != 0)
adam@1444	3010 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	3011 else
adamc@821	3012 return s[0];
adamc@821	3013 }
adamc@821	3014
adamc@311	3015 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	3016 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	3017 return uw_Basis_True;
adamc@296	3018 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	3019 return uw_Basis_False;
adamc@293	3020 else
adam@1444	3021 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3022 }
adamc@436	3023
adam@1352	3024 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	3025 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	3026 struct tm stm = {};
adam@1392	3027 stm.tm_isdst = -1;
adam@1352	3028
adam@1352	3029 if (dot) {
adam@1352	3030 *dot = 0;
adam@1352	3031 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	3032 *dot = '.';
adam@1410	3033 char usec[] = "000000";
adam@1410	3034 int len = strlen(dot+1);
adam@1410	3035 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	3036 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	3037 return r;
adam@1352	3038 }
adam@1352	3039 else {
adam@1352	3040 *dot = '.';
adam@1444	3041 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3042 }
adam@1352	3043 }
adam@1352	3044 else {
adam@1352	3045 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3046 uw_Basis_time r = { mktime(&stm) };
adam@1365	3047 return r;
adam@1352	3048 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3049 uw_Basis_time r = { mktime(&stm) };
adam@1365	3050 return r;
adam@1352	3051 } else
adam@1444	3052 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3053 }
adam@1352	3054 }
adam@1352	3055
adamc@436	3056 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	3057 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	3058 struct tm stm = {};
adam@1392	3059 stm.tm_isdst = -1;
adamc@436	3060
adamc@438	3061 if (dot) {
adamc@438	3062 *dot = 0;
adamc@438	3063 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	3064 *dot = '.';
adam@1365	3065 {
adam@1365	3066 uw_Basis_time r = { mktime(&stm) };
adam@1365	3067 return r;
adam@1365	3068 }
adamc@438	3069 }
adamc@438	3070 else {
adamc@438	3071 *dot = '.';
adam@1444	3072 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3073 }
adamc@438	3074 }
adamc@438	3075 else {
adam@2072	3076 if (strptime(s, ctx->app->time_format, &stm) == end) {
adam@2072	3077 uw_Basis_time r = { mktime(&stm) };
adam@2072	3078 return r;
adam@2072	3079 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3080 uw_Basis_time r = { mktime(&stm) };
adam@1365	3081 return r;
adam@1365	3082 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3083 uw_Basis_time r = { mktime(&stm) };
adam@1365	3084 return r;
adam@1632	3085 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3086 uw_Basis_time r = { mktime(&stm) };
adam@1632	3087 return r;
adam@1365	3088 } else
adam@1444	3089 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3090 }
adamc@436	3091 }
adamc@457	3092
adam@1352	3093 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3094 char *end = strchr(s, 0);
adamc@939	3095 struct tm stm = {};
adam@1392	3096 stm.tm_isdst = -1;
adamc@939	3097
adam@1365	3098 if (strptime(s, fmt, &stm) == end) {
adam@1365	3099 uw_Basis_time r = { mktime(&stm) };
adam@1365	3100 return r;
adam@1365	3101 } else
adam@1444	3102 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3103 }
adamc@939	3104
adamc@742	3105 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3106 char *r = ctx->heap.front;
adamc@742	3107 uw_Basis_blob b = {len, r};
adamc@742	3108
adamc@742	3109 uw_check_heap(ctx, len);
adamc@742	3110
adam@1992	3111 if (s[0] == '\\' && s[1] == 'x') {
adam@1992	3112 s += 2;
adam@1992	3113
adam@1992	3114 while (*s) {
adam@1992	3115 int n;
adam@1992	3116 sscanf(s, "%02x", &n);
adam@1992	3117 *r++ = n;
adam@1992	3118 s += 2;
adam@1992	3119 }
adam@1992	3120 } else {
adam@1992	3121 while (*s) {
adam@1992	3122 if (s[0] == '\\') {
adam@1992	3123 if (s[1] == '\\') {
adam@1992	3124 *r++ = '\\';
adam@1992	3125 s += 2;
adam@1992	3126 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adam@1992	3127 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adam@1992	3128 s += 4;
adam@1992	3129 }
adam@1992	3130 else {
adam@1992	3131 *r++ = '\\';
adam@1992	3132 ++s;
adam@1992	3133 }
adam@1992	3134 } else {
adam@1992	3135 *r++ = s[0];
adamc@742	3136 ++s;
adamc@742	3137 }
adamc@742	3138 }
adamc@742	3139 }
adamc@742	3140
adamc@742	3141 b.size = r - ctx->heap.front;
adamc@742	3142 ctx->heap.front = r;
adam@1992	3143
adamc@742	3144 return b;
adamc@742	3145 }
adamc@742	3146
adam@1402	3147 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3148
adamc@463	3149 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3150 int len = strlen(c);
adamc@854	3151 char *p = ctx->outHeaders.start;
adamc@474	3152
adamc@1134	3153 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3154 char *p2;
adamc@474	3155 p += 13;
adamc@474	3156 p2 = strchr(p, '=');
adamc@474	3157
adamc@474	3158 if (p2) {
adamc@474	3159 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3160
adamc@474	3161 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3162 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3163 return NULL;
adamc@1052	3164 else {
adamc@1052	3165 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3166 memcpy(ret, p2+1, sz);
adamc@1052	3167 ret[sz] = 0;
adamc@1052	3168 return ret;
adamc@1052	3169 }
adamc@474	3170 }
adamc@474	3171 }
adamc@474	3172 }
adamc@463	3173
adamc@1134	3174 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3175 char *p2;
adamc@1051	3176
adamc@854	3177 while (1) {
adamc@1051	3178 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3179 if ((p2 = strchr(p, ';'))) {
adamc@1051	3180 size_t n = p2 - (p + len);
adamc@1051	3181 char *r = uw_malloc(ctx, n);
adamc@1051	3182 memcpy(r, p + 1 + len, n-1);
adamc@1051	3183 r[n-1] = 0;
adamc@1051	3184 return r;
adamc@1051	3185 } else
adamc@1051	3186 return p + 1 + len;
adamc@1134	3187 } else if ((p = strchr(p, ';')))
adamc@854	3188 p += 2;
adamc@463	3189 else
adamc@463	3190 return NULL;
adamc@463	3191 }
adamc@463	3192 }
adamc@792	3193
adamc@792	3194 return NULL;
adamc@457	3195 }
adamc@462	3196
adam@1877	3197 static void set_cookie(uw_context ctx) {
adam@1877	3198 if (ctx->usedSig)
adam@1877	3199 ctx->needsResig = 1;
adam@1877	3200 }
adam@1877	3201
adamc@1050	3202 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	3203 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3204 uw_write_header(ctx, c);
adamc@462	3205 uw_write_header(ctx, "=");
adamc@462	3206 uw_write_header(ctx, v);
adamc@466	3207 uw_write_header(ctx, "; path=");
adamc@466	3208 uw_write_header(ctx, prefix);
adamc@1050	3209 if (expires) {
adamc@1050	3210 char formatted[30];
adam@1392	3211 struct tm tm = {};
adam@1392	3212 tm.tm_isdst = -1;
adamc@1050	3213
adam@1365	3214 gmtime_r(&expires->seconds, &tm);
adamc@1050	3215
adamc@1050	3216 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3217
adamc@1050	3218 uw_write_header(ctx, "; expires=");
adamc@1050	3219 uw_write_header(ctx, formatted);
adamc@1050	3220 }
adamc@1050	3221 if (secure)
adamc@1050	3222 uw_write_header(ctx, "; secure");
adamc@462	3223 uw_write_header(ctx, "\r\n");
adam@1877	3224 set_cookie(ctx);
adamc@462	3225
adamc@462	3226 return uw_unit_v;
adamc@462	3227 }
adamc@667	3228
adamc@1050	3229 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3230 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3231 uw_write_header(ctx, c);
adamc@1050	3232 uw_write_header(ctx, "=; path=");
adamc@1050	3233 uw_write_header(ctx, prefix);
adamc@1052	3234 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3235 set_cookie(ctx);
adamc@1050	3236
adamc@1050	3237 return uw_unit_v;
adamc@1050	3238 }
adamc@1050	3239
adamc@1113	3240 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3241
adamc@682	3242 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3243 unsigned i;
adamc@682	3244 delta *d;
adamc@671	3245
adamc@682	3246 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3247 if (ctx->deltas[i].client == client)
adamc@682	3248 return &ctx->deltas[i];
adamc@671	3249
adamc@682	3250 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3251 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3252 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3253
adamc@682	3254 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3255 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3256 }
adamc@671	3257
adamc@682	3258 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3259 d->client = client;
adam@1369	3260 uw_buffer_reset(&d->msgs);
adamc@682	3261 return d;
adamc@671	3262 }
adamc@671	3263
adamc@668	3264 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3265 if (ctx->client == NULL)
adamc@682	3266 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3267
adamc@682	3268 return new_channel(ctx->client);
adamc@668	3269 }
adamc@668	3270
adamc@668	3271 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3272 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3273 size_t len;
adamc@682	3274 int preLen;
adamc@682	3275 char pre[INTS_MAX + 2];
adamc@668	3276
adamc@682	3277 len = strlen(msg);
adamc@682	3278
adamc@682	3279 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3280
adam@1369	3281 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3282 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3283 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3284
adamc@671	3285 return uw_unit_v;
adamc@668	3286 }
adamc@671	3287
adam@1327	3288 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3289 int i;
adamc@1131	3290 cleanup *cl;
adamc@1131	3291
adamc@1131	3292 if (ctx->client)
adamc@1131	3293 release_client(ctx->client);
adamc@1131	3294
adamc@1131	3295 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3296 cl->func(cl->arg);
adamc@1131	3297
adamc@1131	3298 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3299
adamc@1131	3300 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3301 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3302 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3303
adamc@1131	3304 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3305 if (ctx->transactionals[i].free)
adam@1327	3306 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3307
adam@1941	3308 if (ctx->app && ctx->transaction_started) {
adam@1941	3309 ctx->transaction_started = 0;
adam@1941	3310 return ctx->app->db_rollback(ctx);
adam@1941	3311 } else
adam@1941	3312 return 0;
adamc@1131	3313 }
adamc@1131	3314
adam@1956	3315 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	3316 const char uw_begin_html5[] = "<!DOCTYPE html><html>";
adam@1728	3317
adam@1877	3318 extern int uw_hash_blocksize;
adam@1877	3319
adam@1877	3320 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3321
adam@1877	3322 static char find_sig(char haystack) {
adam@1877	3323 int i;
adam@1877	3324 char *s = strstr(haystack, sig_intro);
adam@1877	3325
adam@1877	3326 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3327 return NULL;
phurst@1981	3328
adam@1877	3329 s += sizeof sig_intro - 1;
adam@1877	3330
adam@1877	3331 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3332 if (!isxdigit((int)s[i]))
adam@1877	3333 return NULL;
adam@1877	3334
adam@1877	3335 if (s[i] != '"')
adam@1877	3336 return NULL;
adam@1877	3337
adam@1877	3338 return s;
adam@1877	3339 }
adam@1877	3340
adam@2033	3341 static pthread_mutex_t message_send_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2033	3342
adam@1938	3343 int uw_commit(uw_context ctx) {
adamc@1104	3344 int i;
adam@1877	3345 char *sig;
adamc@1104	3346
adamc@1131	3347 if (uw_has_error(ctx)) {
adam@1327	3348 uw_rollback(ctx, 0);
adam@1938	3349 return 0;
adamc@1131	3350 }
adamc@1131	3351
adamc@1104	3352 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3353 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3354 if (ctx->transactionals[i].commit) {
adamc@1083	3355 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3356 if (uw_has_error(ctx)) {
adam@1327	3357 uw_rollback(ctx, 0);
adam@1938	3358 return 0;
adamc@1131	3359 }
adamc@1131	3360 }
adamc@771	3361
adam@2033	3362 // Here's an important lock to provide the abstraction that all messages from one transaction are sent as an atomic unit.
adam@2033	3363 if (ctx->used_deltas > 0)
adam@2033	3364 pthread_mutex_lock(&message_send_mutex);
adam@2033	3365
adam@2000	3366 if (ctx->transaction_started) {
adam@2000	3367 int code = ctx->app->db_commit(ctx);
adam@2000	3368
adam@2000	3369 if (code) {
adam@2033	3370 if (ctx->used_deltas > 0)
adam@2033	3371 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3372
adam@2000	3373 if (ctx->client)
adam@2000	3374 release_client(ctx->client);
adam@2000	3375
adam@2000	3376 if (code == -1) {
adam@2000	3377 // This case is for a serialization failure, which is not really an "error."
adam@2000	3378 // The transaction will restart, so we should rollback any transactionals
adam@2000	3379 // that triggered above.
adam@2000	3380
adam@2000	3381 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3382 if (ctx->transactionals[i].rollback != NULL)
adam@2000	3383 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2000	3384
adam@2000	3385 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3386 if (ctx->transactionals[i].free)
adam@2000	3387 ctx->transactionals[i].free(ctx->transactionals[i].data, 1);
adam@2000	3388
grrwlf@2030	3389 return 1;
adam@2000	3390 }
adam@2000	3391
adam@2000	3392 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3393 if (ctx->transactionals[i].free)
adam@2000	3394 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3395
adam@2000	3396 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@2000	3397 return 0;
adam@2000	3398 }
adam@2000	3399 }
adam@2000	3400
adamc@1104	3401 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3402 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3403 if (ctx->transactionals[i].commit) {
adamc@1083	3404 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3405 if (uw_has_error(ctx)) {
adam@2033	3406 if (ctx->used_deltas > 0)
adam@2033	3407 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3408
adam@2033	3409 if (ctx->client)
adam@2033	3410 release_client(ctx->client);
adam@2033	3411
adam@2033	3412 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3413 if (ctx->transactionals[i].rollback != NULL)
adam@2033	3414 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2033	3415
adam@2033	3416 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3417 if (ctx->transactionals[i].free)
adam@2033	3418 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3419
adam@1938	3420 return 0;
adamc@1131	3421 }
adamc@1131	3422 }
adamc@1131	3423
adamc@682	3424 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3425 delta *d = &ctx->deltas[i];
adamc@682	3426 client *c = find_client(d->client);
adamc@682	3427
adam@1551	3428 assert (c != NULL);
adam@1551	3429 assert(c->mode == USED);
adamc@682	3430
adam@1447	3431 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3432 }
adamc@682	3433
adam@2033	3434 if (ctx->used_deltas > 0)
adam@2033	3435 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3436
adamc@682	3437 if (ctx->client)
adamc@685	3438 release_client(ctx->client);
adamc@771	3439
adamc@1104	3440 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3441 if (ctx->transactionals[i].free)
adam@1327	3442 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3443
vshabanoff@1726	3444 uw_check(ctx, 1);
vshabanoff@1726	3445 *ctx->page.front = 0;
adam@1413	3446
adam@1956	3447 if (!ctx->returning_indirectly
adam@1956	3448 && (ctx->app->is_html5
adam@1956	3449 ? !strncmp(ctx->page.start, uw_begin_html5, sizeof uw_begin_html5 - 1)
adam@1956	3450 : !strncmp(ctx->page.start, uw_begin_xhtml, sizeof uw_begin_xhtml - 1))) {
adam@1728	3451 char *s;
adam@1728	3452
adam@1728	3453 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1956	3454 s = ctx->page.start + (ctx->app->is_html5 ? sizeof uw_begin_html5 - 1 : sizeof uw_begin_xhtml - 1);
adam@1728	3455 s = strchr(s, '<');
adam@1728	3456 if (s == NULL) {
adam@1728	3457 // Weird. Document has no tags!
adam@1728	3458
adam@1728	3459 uw_write(ctx, "<head></head><body></body>");
adam@1728	3460 uw_check(ctx, 1);
adam@1728	3461 *ctx->page.front = 0;
adam@1728	3462 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3463 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3464
adam@1729	3465 // Any freeform JavaScript to include?
adam@1729	3466 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3467 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3468 size_t lenP = lenH + 40 + len;
adam@1729	3469 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3470
adam@1729	3471 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3472 start += ctx->page.start - oldPage;
adam@1729	3473 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3474 ctx->page.front += lenP;
adam@1729	3475 memcpy(start, ctx->script_header, lenH);
adam@1729	3476 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3477 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3478 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3479 } else {
adam@1729	3480 size_t lenH = strlen(ctx->script_header);
adam@1729	3481 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3482
adam@1729	3483 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3484 start += ctx->page.start - oldPage;
adam@1729	3485 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3486 ctx->page.front += lenH;
adam@1729	3487 memcpy(start, ctx->script_header, lenH);
adam@1729	3488 }
adam@1728	3489 } else {
adam@1728	3490 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3491
adam@1729	3492 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3493 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3494 size_t lenP = lenH + 53 + len;
adam@1729	3495 char start = s, oldPage = ctx->page.start;
adam@1729	3496
adam@1729	3497 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3498 start += ctx->page.start - oldPage;
adam@1729	3499 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3500 ctx->page.front += lenP;
adam@1729	3501 memcpy(start, "<head>", 6);
adam@1729	3502 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3503 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3504 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3505 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3506 } else {
adam@1729	3507 size_t lenH = strlen(ctx->script_header);
adam@1729	3508 size_t lenP = lenH + 13;
adam@1729	3509 char start = s, oldPage = ctx->page.start;
adam@1729	3510
adam@1729	3511 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3512 start += ctx->page.start - oldPage;
adam@1729	3513 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3514 ctx->page.front += lenP;
adam@1729	3515 memcpy(start, "<head>", 6);
adam@1729	3516 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3517 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3518 }
adamc@916	3519 }
adamc@916	3520 }
adam@1877	3521
adam@1877	3522 if (ctx->needsResig) {
adam@1877	3523 sig = find_sig(ctx->page.start);
adam@1877	3524 if (sig) {
adam@1877	3525 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3526
adam@1877	3527 do {
adam@1877	3528 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3529 sig = find_sig(sig);
adam@1877	3530 } while (sig);
adam@1877	3531 }
adam@1877	3532 }
adam@1938	3533
adam@1938	3534 return 0;
adamc@671	3535 }
adamc@671	3536
adamc@683	3537
adamc@1113	3538 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3539
adam@2001	3540 int uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3541 uw_callback_with_retry free) {
adamc@771	3542 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3543 if (ctx->used_transactionals+1 > uw_transactionals_max)
adam@2001	3544 // Exceeded limit on number of transactionals.
adam@2001	3545 return -1;
adamc@1084	3546 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3547 ++ctx->n_transactionals;
adamc@771	3548 }
adamc@771	3549
adamc@771	3550 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3551 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3552 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3553 ctx->transactionals[ctx->used_transactionals++].free = free;
adam@2001	3554
adam@2001	3555 return 0;
adamc@771	3556 }
adamc@771	3557
adamc@683	3558
adamc@683	3559 // "Garbage collection"
adamc@683	3560
adamc@1121	3561 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3562 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3563
adamc@1121	3564 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3565 int r = setjmp(ctx->jmp_buf);
adamc@683	3566
adamc@1121	3567 if (r == 0)
adamc@1121	3568 uw_do_expunge(ctx, cli, data);
adamc@1121	3569 else
adamc@1121	3570 ctx->app->db_rollback(ctx);
adamc@1121	3571
adamc@1121	3572 uw_post_expunge(ctx, data);
adamc@683	3573
adamc@683	3574 return r;
adamc@683	3575 }
adamc@683	3576
adamc@683	3577 void uw_prune_clients(uw_context ctx) {
adamc@683	3578 client c, next, *prev = NULL;
adamc@683	3579 time_t cutoff;
adamc@683	3580
adamc@1094	3581 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3582
adamc@683	3583 pthread_mutex_lock(&clients_mutex);
adam@1707	3584 pruning_thread = pthread_self();
adam@1707	3585 pruning_thread_initialized = 1;
adamc@683	3586
adamc@683	3587 for (c = clients_used; c; c = next) {
adamc@683	3588 next = c->next;
adamc@683	3589 pthread_mutex_lock(&c->lock);
adamc@685	3590 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3591 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3592 if (prev)
adamc@683	3593 prev->next = next;
adamc@683	3594 else
adamc@683	3595 clients_used = next;
adamc@683	3596 while (fk == UNLIMITED_RETRY) {
adam@1941	3597 uw_reset(ctx);
adamc@1121	3598 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3599 if (fk == UNLIMITED_RETRY)
adamc@684	3600 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3601 }
adamc@684	3602 if (fk == SUCCESS)
adamc@684	3603 free_client(c);
adamc@1121	3604 else
adamc@856	3605 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3606 }
adamc@683	3607 else
adamc@683	3608 prev = c;
adamc@683	3609 pthread_mutex_unlock(&c->lock);
adamc@683	3610 }
adamc@683	3611
adamc@683	3612 pthread_mutex_unlock(&clients_mutex);
adamc@683	3613 }
adamc@687	3614
adamc@687	3615 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3616 int r = setjmp(ctx->jmp_buf);
adamc@687	3617
adamc@687	3618 if (r == 0) {
adam@1936	3619 uw_ensure_transaction(ctx);
adamc@1094	3620 ctx->app->initializer(ctx);
adamc@1094	3621 if (ctx->app->db_commit(ctx))
adamc@687	3622 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3623 }
adamc@687	3624
adamc@687	3625 return r;
adamc@687	3626 }
adamc@717	3627
adamc@1065	3628 static int url_bad(uw_Basis_string s) {
adamc@1065	3629 for (; *s; ++s)
adamc@1153	3630 if (!isgraph((int)*s))
adamc@1065	3631 return 1;
adamc@1065	3632
adamc@1065	3633 return 0;
adamc@1065	3634 }
adamc@1065	3635
adamc@717	3636 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3637 if (url_bad(s))
adamc@1065	3638 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3639 if (ctx->app->check_url(s))
adamc@770	3640 return s;
adamc@770	3641 else
adamc@770	3642 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3643 }
adamc@734	3644
adamc@770	3645 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3646 if (url_bad(s))
adamc@1065	3647 return NULL;
adamc@1094	3648 if (ctx->app->check_url(s))
adamc@770	3649 return s;
adamc@770	3650 else
adamc@770	3651 return NULL;
adamc@770	3652 }
adamc@770	3653
adam@1465	3654 static int mime_format(const char *s) {
adamc@770	3655 for (; *s; ++s)
grrwlf@2024	3656 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.' && *s != '+')
adamc@770	3657 return 0;
adamc@770	3658
adamc@770	3659 return 1;
adamc@770	3660 }
adamc@770	3661
adamc@741	3662 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3663 if (!mime_format(s))
adamc@770	3664 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3665
adamc@1094	3666 if (ctx->app->check_mime(s))
adamc@770	3667 return s;
adamc@770	3668 else
adamc@770	3669 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3670 }
adamc@770	3671
adamc@770	3672 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3673 if (!mime_format(s))
adamc@770	3674 return NULL;
adamc@770	3675
adamc@1094	3676 if (ctx->app->check_mime(s))
adamc@770	3677 return s;
adamc@770	3678 else
adamc@770	3679 return NULL;
adamc@741	3680 }
adamc@741	3681
adam@1465	3682 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3683 if (!mime_format(s))
adam@1465	3684 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3685
adam@1465	3686 if (ctx->app->check_requestHeader(s))
adam@1465	3687 return s;
adam@1465	3688 else
adam@1465	3689 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3690 }
adam@1465	3691
adam@1465	3692 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3693 if (!mime_format(s))
adam@1465	3694 return NULL;
adam@1465	3695
adam@1465	3696 if (ctx->app->check_requestHeader(s))
adam@1465	3697 return s;
adam@1465	3698 else
adam@1465	3699 return NULL;
adam@1465	3700 }
adam@1465	3701
adam@1465	3702 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3703 if (!mime_format(s))
adam@1465	3704 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3705
adam@1465	3706 if (ctx->app->check_responseHeader(s))
adam@1465	3707 return s;
adam@1465	3708 else
adam@1465	3709 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3710 }
adam@1465	3711
adam@1799	3712 static int envVar_format(const char *s) {
adam@1799	3713 for (; *s; ++s)
adam@1799	3714 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3715 return 0;
adam@1799	3716
adam@1799	3717 return 1;
adam@1799	3718 }
adam@1799	3719
adam@1465	3720 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3721 if (!envVar_format(s))
adam@1465	3722 return NULL;
adam@1465	3723
adam@1465	3724 if (ctx->app->check_responseHeader(s))
adam@1465	3725 return s;
adam@1465	3726 else
adam@1465	3727 return NULL;
adam@1465	3728 }
adam@1465	3729
adam@1799	3730 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3731 if (!envVar_format(s))
adam@1799	3732 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3733
adam@1799	3734 if (ctx->app->check_envVar(s))
adam@1799	3735 return s;
adam@1799	3736 else
adam@1799	3737 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3738 }
adam@1799	3739
adam@1799	3740 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3741 if (!mime_format(s))
adam@1799	3742 return NULL;
adam@1799	3743
adam@1799	3744 if (ctx->app->check_envVar(s))
adam@1799	3745 return s;
adam@1799	3746 else
adam@1799	3747 return NULL;
adam@1799	3748 }
adam@1799	3749
adam@1465	3750 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3751 return uw_Basis_requestHeader(ctx, name);
adam@1465	3752 }
adam@1465	3753
adam@1465	3754 static int mime_value_format(const char *s) {
adam@1465	3755 for (; *s; ++s)
adam@1465	3756 if (s == '\r' \|\| s == '\n')
adam@1465	3757 return 0;
adam@1465	3758
adam@1465	3759 return 1;
adam@1465	3760 }
adam@1465	3761
adam@1465	3762 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3763 if (!mime_value_format(value))
adam@1465	3764 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3765
adam@1465	3766 uw_write_header(ctx, name);
adam@1465	3767 uw_write_header(ctx, ": ");
adam@1465	3768 uw_write_header(ctx, value);
adam@1465	3769 uw_write_header(ctx, "\r\n");
adam@1465	3770
adam@1465	3771 return uw_unit_v;
adam@1465	3772 }
adam@1465	3773
adam@1799	3774 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1993	3775 if (ctx->get_env)
adam@1993	3776 return ctx->get_env(ctx->get_env_data, name);
adam@1993	3777 else
adam@1994	3778 return getenv(name);
adam@1799	3779 }
adam@1799	3780
adamc@734	3781 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3782 return s ? s : "";
adamc@734	3783 }
adamc@734	3784
adamc@734	3785 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3786 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3787 int i;
phurst@1981	3788
adamc@734	3789 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3790 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3791
adamc@734	3792 return r;
adamc@734	3793 }
adamc@734	3794
adam@1512	3795 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3796 * optimizations that would enable timing attacks. See:
adam@1512	3797 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3798 */
adam@1512	3799 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3800 int i, x = 0, len1 = strlen(s1);
adam@1512	3801
adam@1512	3802 if (len1 != strlen(s2)) return 0;
adam@1512	3803
adam@1512	3804 for (i = 0; i < len1; ++i) {
adam@1512	3805 __asm__ __volatile__ ("");
adam@1512	3806 x \|= s1[i] ^ s2[i];
adam@1512	3807 }
adam@1512	3808
adam@1512	3809 return x == 0;
adam@1512	3810 }
adam@1512	3811
adamc@734	3812 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3813 ctx->usedSig = 1;
adamc@1094	3814 return ctx->app->cookie_sig(ctx);
adamc@734	3815 }
adamc@737	3816
adamc@737	3817 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3818 return f.name;
adamc@737	3819 }
adamc@737	3820
adamc@740	3821 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3822 return f.type;
adamc@740	3823 }
adamc@740	3824
adamc@745	3825 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3826 return b.size;
adamc@745	3827 }
adamc@745	3828
adamc@1119	3829 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3830 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3831
adamc@1119	3832 return b;
adamc@1119	3833 }
adamc@1119	3834
adamc@737	3835 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3836 return f.data;
adamc@737	3837 }
adamc@741	3838
adam@1347	3839 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3840 return pb.type;
adam@1347	3841 }
adam@1347	3842
adam@1347	3843 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3844 return pb.data;
adam@1347	3845 }
adam@1347	3846
adam@1471	3847 static char *old_headers(uw_context ctx) {
adam@1471	3848 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3849 return NULL;
adam@1471	3850 else {
adam@1471	3851 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3852
adam@1471	3853 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3854 return NULL;
adam@1471	3855 else {
adam@1471	3856 s = strchr(s+15, '\n');
adam@1471	3857 if (s == NULL)
adam@1471	3858 return NULL;
adam@1471	3859 else
adam@1471	3860 return uw_strdup(ctx, s+1);
adam@1471	3861 }
adam@1471	3862 }
adam@1471	3863 }
adam@1471	3864
adamc@741	3865 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3866 cleanup *cl;
adamc@741	3867 int len;
adam@1471	3868 char *oldh;
adamc@741	3869
adam@1451	3870 if (!ctx->allowed_to_return_indirectly)
adam@1451	3871 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3872
adamc@1065	3873 ctx->returning_indirectly = 1;
adam@1471	3874 oldh = old_headers(ctx);
adam@1369	3875 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3876 uw_buffer_reset(&ctx->page);
adamc@741	3877
adamc@856	3878 uw_write_header(ctx, on_success);
adamc@856	3879 uw_write_header(ctx, "Content-Type: ");
adamc@741	3880 uw_write_header(ctx, mimeType);
adam@1934	3881 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369	3882 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3883 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3884 ctx->outHeaders.front += len;
adamc@1066	3885 uw_write_header(ctx, "\r\n");
adam@1471	3886 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3887
adam@1369	3888 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3889
adamc@741	3890 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3891 cl->func(cl->arg);
adamc@741	3892
adamc@741	3893 ctx->cleanup_front = ctx->cleanup;
adamc@741	3894
adamc@1065	3895 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3896 }
adamc@1065	3897
adam@2046	3898 void uw_replace_page(uw_context ctx, const char *data, size_t size) {
adam@2046	3899 uw_buffer_reset(&ctx->page);
adam@2046	3900 ctx_uw_buffer_append(ctx, "page", &ctx->page, data, size);
adam@2046	3901 }
adam@2046	3902
adam@1932	3903 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932	3904 cleanup *cl;
adam@1932	3905 int len;
adam@1932	3906 char *oldh;
adam@1932	3907
adam@1932	3908 if (!ctx->allowed_to_return_indirectly)
adam@1932	3909 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932	3910
adam@1932	3911 ctx->returning_indirectly = 1;
adam@1932	3912 oldh = old_headers(ctx);
adam@1932	3913 uw_buffer_reset(&ctx->outHeaders);
adam@1932	3914
adam@1932	3915 uw_write_header(ctx, on_success);
adam@1932	3916 uw_write_header(ctx, "Content-Type: ");
adam@1932	3917 uw_write_header(ctx, mimeType);
adam@1934	3918 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932	3919 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932	3920 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932	3921 ctx->outHeaders.front += len;
adam@1932	3922 uw_write_header(ctx, "\r\n");
adam@1932	3923 if (oldh) uw_write_header(ctx, oldh);
adam@1932	3924
adam@1932	3925 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932	3926 cl->func(cl->arg);
adam@1932	3927
adam@1932	3928 ctx->cleanup_front = ctx->cleanup;
adam@1932	3929
adam@1932	3930 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932	3931 }
adam@1932	3932
adamc@1065	3933 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3934 cleanup *cl;
adamc@1066	3935 char *s;
adam@1471	3936 char *oldh;
adamc@1065	3937
adam@1451	3938 if (!ctx->allowed_to_return_indirectly)
adam@1451	3939 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3940
adamc@1065	3941 ctx->returning_indirectly = 1;
adam@1471	3942 oldh = old_headers(ctx);
adam@1369	3943 uw_buffer_reset(&ctx->page);
adam@1369	3944 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3945 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3946 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3947 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3948
adam@1409	3949 if (on_success[0])
adam@1409	3950 uw_write_header(ctx, on_redirect);
adam@1409	3951 else
adam@1409	3952 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3953 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3954 if (s) {
adamc@1066	3955 char *s2;
adam@1409	3956 if (s[0] == '\n') ++s;
adam@1409	3957 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3958 *s2 = 0;
adamc@1066	3959 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3960 uw_write_header(ctx, s);
adamc@1066	3961 uw_write_header(ctx, "\n");
adamc@1066	3962 }
adamc@1066	3963 }
adamc@1066	3964 }
adamc@1066	3965
adamc@1065	3966 uw_write_header(ctx, "Location: ");
adamc@1065	3967 uw_write_header(ctx, url);
adamc@1065	3968 uw_write_header(ctx, "\r\n\r\n");
adam@1471	3969 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	3970
adamc@1065	3971 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3972 cl->func(cl->arg);
adamc@1065	3973
adamc@1065	3974 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3975
adamc@1065	3976 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3977 }
adamc@874	3978
adamc@874	3979 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	3980 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	3981
adamc@874	3982 for (; *s; ++s) {
adamc@874	3983 if (s[0] == '\'') {
adamc@874	3984 *r++ = '\'';
adamc@874	3985 for (++s; *s; ++s) {
adamc@874	3986 if (s[0] == '\'') {
adamc@874	3987 *r++ = '\'';
adamc@874	3988 break;
adamc@874	3989 } else if (s[0] == '\\') {
adam@1467	3990 *r++ = '\\';
adam@1467	3991 *r++ = s[1];
adam@1467	3992 ++s;
adamc@874	3993 } else
adamc@874	3994 *r++ = s[0];
adamc@874	3995 }
adamc@874	3996 if (*s == 0) break;
adam@1467	3997 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	3998 s += 3;
adamc@874	3999 else
adamc@874	4000 *r++ = s[0];
adamc@874	4001 }
adamc@874	4002
adam@1467	4003 *r = 0;
adam@1467	4004 return ret;
adamc@874	4005 }
adamc@874	4006
adamc@922	4007 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	4008 va_list ap;
adamc@922	4009 size_t len = 1;
adamc@922	4010 char s, r, *s2;
phurst@1981	4011
adamc@922	4012 va_start(ap, ctx);
adamc@922	4013 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4014 len += strlen(s);
adamc@922	4015 va_end(ap);
adamc@922	4016
adamc@922	4017 r = uw_malloc(ctx, len);
adamc@922	4018 va_start(ap, ctx);
adamc@922	4019 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4020 while (*s)
adamc@922	4021 s2++ = s++;
adamc@922	4022 va_end(ap);
adamc@922	4023 *s2 = 0;
adamc@922	4024
adamc@922	4025 return r;
adamc@922	4026 }
adamc@1006	4027
adam@1365	4028 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	4029
adamc@1006	4030 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	4031 uw_Basis_time r = { time(NULL) };
adam@1365	4032 return r;
adamc@1006	4033 }
adamc@1061	4034
adam@1369	4035 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	4036 tm.seconds += n;
adam@1365	4037 return tm;
adamc@1138	4038 }
adamc@1138	4039
adam@1514	4040 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	4041 return difftime(tm2.seconds, tm1.seconds);
adam@1514	4042 }
adam@1514	4043
adam@1685	4044 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	4045 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	4046 }
adam@1685	4047
adam@1685	4048 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	4049 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	4050 }
adam@1685	4051
adam@1514	4052 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	4053 return tm.seconds;
adam@1514	4054 }
adam@1514	4055
phurst@1971	4056 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	4057 struct tm tm = { .tm_year = year - 1900, .tm_mon = month, .tm_mday = day,
adam@2015	4058 .tm_hour = hour, .tm_min = minute, .tm_sec = second,
adam@2015	4059 .tm_isdst = -1 };
phurst@1984	4060 uw_Basis_time r = { timelocal(&tm) };
phurst@1971	4061 return r;
phurst@1971	4062 }
phurst@1971	4063
phurst@1971	4064 uw_Basis_int uw_Basis_datetimeYear(uw_context ctx, uw_Basis_time time) {
phurst@1971	4065 struct tm tm;
phurst@1982	4066 localtime_r(&time.seconds, &tm);
phurst@1971	4067 return tm.tm_year + 1900;
phurst@1971	4068 }
phurst@1971	4069
phurst@1971	4070 uw_Basis_int uw_Basis_datetimeMonth(uw_context ctx, uw_Basis_time time) {
phurst@1971	4071 struct tm tm;
phurst@1982	4072 localtime_r(&time.seconds, &tm);
phurst@1971	4073 return tm.tm_mon;
phurst@1971	4074 }
phurst@1971	4075
phurst@1971	4076 uw_Basis_int uw_Basis_datetimeDay(uw_context ctx, uw_Basis_time time) {
phurst@1971	4077 struct tm tm;
phurst@1982	4078 localtime_r(&time.seconds, &tm);
phurst@1971	4079 return tm.tm_mday;
phurst@1971	4080 }
phurst@1971	4081
phurst@1971	4082 uw_Basis_int uw_Basis_datetimeHour(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_hour;
phurst@1971	4086 }
phurst@1971	4087
phurst@1971	4088 uw_Basis_int uw_Basis_datetimeMinute(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_min;
phurst@1971	4092 }
phurst@1971	4093
phurst@1971	4094 uw_Basis_int uw_Basis_datetimeSecond(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_sec;
phurst@1971	4098 }
phurst@1971	4099
phurst@1973	4100 uw_Basis_int uw_Basis_datetimeDayOfWeek(uw_context ctx, uw_Basis_time time) {
phurst@1973	4101 struct tm tm;
phurst@1982	4102 localtime_r(&time.seconds, &tm);
phurst@1973	4103 return tm.tm_wday;
phurst@1973	4104 }
phurst@1971	4105
phurst@1971	4106
adamc@1061	4107 void uw_get_global(uw_context ctx, char name) {
adamc@1061	4108 int i;
adamc@1061	4109
adamc@1061	4110 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4111 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	4112 return ctx->globals[i].data;
adamc@1061	4113
adamc@1061	4114 return NULL;
adamc@1061	4115 }
adamc@1061	4116
adamc@1113	4117 size_t uw_globals_max = SIZE_MAX;
adamc@1113	4118
adamc@1061	4119 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	4120 int i;
adamc@1061	4121
adamc@1061	4122 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4123 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	4124 if (ctx->globals[i].free)
adamc@1061	4125 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	4126 ctx->globals[i].data = data;
adamc@1061	4127 ctx->globals[i].free = free;
adamc@1061	4128 return;
adamc@1061	4129 }
adamc@1089	4130
adamc@1113	4131 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	4132 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	4133
adamc@1061	4134 ++ctx->n_globals;
adamc@1061	4135 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	4136 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	4137 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	4138 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	4139 }
adamc@1061	4140
adamc@1061	4141 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	4142 return !!isalnum((int)c);
adamc@1061	4143 }
adamc@1061	4144
adamc@1061	4145 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	4146 return !!isalpha((int)c);
adamc@1061	4147 }
adamc@1061	4148
adamc@1061	4149 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	4150 return !!isblank((int)c);
adamc@1061	4151 }
adamc@1061	4152
adamc@1061	4153 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	4154 return !!iscntrl((int)c);
adamc@1061	4155 }
adamc@1061	4156
adamc@1061	4157 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4158 return !!isdigit((int)c);
adamc@1061	4159 }
adamc@1061	4160
adamc@1061	4161 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	4162 return !!isgraph((int)c);
adamc@1061	4163 }
adamc@1061	4164
adamc@1061	4165 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4166 return !!islower((int)c);
adamc@1061	4167 }
adamc@1061	4168
adamc@1061	4169 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	4170 return !!isprint((int)c);
adamc@1061	4171 }
adamc@1061	4172
adamc@1061	4173 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	4174 return !!ispunct((int)c);
adamc@1061	4175 }
adamc@1061	4176
adamc@1061	4177 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	4178 return !!isspace((int)c);
adamc@1061	4179 }
adamc@1063	4180
adamc@1061	4181 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4182 return !!isupper((int)c);
adamc@1061	4183 }
adamc@1061	4184
adamc@1061	4185 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4186 return !!isxdigit((int)c);
adamc@1061	4187 }
adamc@1061	4188
adamc@1061	4189 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4190 return tolower((int)c);
adamc@1061	4191 }
adamc@1061	4192
adamc@1061	4193 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4194 return toupper((int)c);
adamc@1061	4195 }
adamc@1066	4196
adamc@1128	4197 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	4198 return (unsigned char)c;
adamc@1128	4199 }
adamc@1128	4200
adamc@1128	4201 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	4202 return n;
adamc@1128	4203 }
adamc@1128	4204
adamc@1066	4205 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	4206 return ctx->current_url;
adamc@1066	4207 }
adamc@1066	4208
adamc@1066	4209 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	4210 ctx->current_url = s;
adamc@1066	4211 }
adamc@1114	4212
adamc@1114	4213 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	4214 ctx->deadline = n;
adamc@1114	4215 }
adamc@1114	4216
adamc@1114	4217 void uw_check_deadline(uw_context ctx) {
adamc@1114	4218 if (uw_time > ctx->deadline)
adamc@1114	4219 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	4220 }
adamc@1115	4221
adamc@1115	4222 size_t uw_database_max = SIZE_MAX;
adamc@1120	4223
adam@1389	4224 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@1389	4225 fprintf(stderr, "%s\n", s);
adam@1389	4226 return 0;
adam@1389	4227 }
adam@1389	4228
adamc@1120	4229 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
grrwlf@1997	4230 if (ctx->loggers->log_debug)
grrwlf@1997	4231 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@1334	4232 else
adam@1334	4233 fprintf(stderr, "%s\n", s);
adamc@1120	4234 return uw_unit_v;
adamc@1120	4235 }
adamc@1250	4236
adam@1933	4237 static pthread_mutex_t rand_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@1933	4238
adamc@1250	4239 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@1486	4240 uw_Basis_int ret;
adam@1933	4241 pthread_mutex_lock(&rand_mutex);
adam@1486	4242 int r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@1933	4243 pthread_mutex_unlock(&rand_mutex);
phurst@1981	4244
adam@1486	4245 if (r)
adam@1486	4246 return abs(ret);
adam@1486	4247 else
adam@1486	4248 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	4249 }
adam@1347	4250
adam@1347	4251 void uw_noPostBody(uw_context ctx) {
adam@1347	4252 ctx->hasPostBody = 0;
adam@1347	4253 }
adam@1347	4254
adam@1347	4255 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	4256 ctx->hasPostBody = 1;
adam@1347	4257 ctx->postBody = pb;
adam@1347	4258 }
adam@1347	4259
adam@1347	4260 int uw_hasPostBody(uw_context ctx) {
adam@1347	4261 return ctx->hasPostBody;
adam@1347	4262 }
adam@1347	4263
adam@1386	4264 void uw_isPost(uw_context ctx) {
adam@1386	4265 ctx->isPost = 1;
adam@1386	4266 }
adam@1386	4267
adam@1386	4268 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4269 return ctx->isPost;
adam@1386	4270 }
adam@1386	4271
adam@1485	4272 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4273 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4274 }
adam@1485	4275
adam@1370	4276 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4277 ctx->queryString = s;
adam@1370	4278 }
adam@1370	4279
adam@1370	4280 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4281 return ctx->queryString;
adam@1370	4282 }
adam@1370	4283
adam@1347	4284 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4285 if (ctx->hasPostBody)
adam@1347	4286 return ctx->postBody;
adam@1347	4287 else
adam@1347	4288 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4289 }
adam@1349	4290
adam@1349	4291 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4292 int r = setjmp(ctx->jmp_buf);
adam@1349	4293
adam@1349	4294 if (r == 0) {
adam@1936	4295 uw_ensure_transaction(ctx);
adam@1418	4296
adam@1349	4297 callback(ctx);
adam@1349	4298 }
adam@1349	4299
adam@1349	4300 return r;
adam@1349	4301 }
adam@1360	4302
adam@1360	4303 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4304 char buf[14];
adam@1397	4305 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4306 }
adam@1365	4307
adam@1365	4308 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4309 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	4310 }
adam@1365	4311
adam@1365	4312 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@2034	4313 return !!(t1.seconds < t2.seconds \|\| (t1.seconds == t2.seconds && t1.microseconds < t2.microseconds));
adam@1365	4314 }
adam@1365	4315
adam@1365	4316 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4317 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4318 }
adam@1365	4319
adam@1372	4320 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4321 struct tm stm = {};
adam@1375	4322 char *end = strchr(s, 0);
adam@1449	4323 stm.tm_isdst = -1;
adam@1375	4324
adam@1632	4325 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4326 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4327
kkallio@1448	4328 r->seconds = timegm(&stm);
adam@1373	4329 r->microseconds = 0;
adam@1373	4330
adam@1373	4331 return r;
adam@1374	4332 }
adam@1374	4333 else
adam@1373	4334 return NULL;
adam@1372	4335 }
adam@1407	4336
adam@1407	4337 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4338 int r = setjmp(ctx->jmp_buf);
adam@1407	4339
adam@1407	4340 if (ctx->app->on_error) {
adam@1407	4341 if (r == 0) {
adam@1936	4342 uw_ensure_transaction(ctx);
adam@1407	4343
adam@1409	4344 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4345 if (on_success[0])
adam@1409	4346 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4347 else
adam@1409	4348 uw_write_header(ctx, "Status: ");
adam@1409	4349 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919	4350 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1956	4351 uw_write(ctx, ctx->app->is_html5 ? uw_begin_html5 : uw_begin_xhtml);
adam@1407	4352 ctx->app->on_error(ctx, msg);
adam@1407	4353 uw_write(ctx, "</html>");
adam@1407	4354 }
adam@1407	4355
adam@1407	4356 return r;
adam@1407	4357 } else
adam@1407	4358 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4359 }
adam@1451	4360
adam@1451	4361 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4362 ctx->allowed_to_return_indirectly = 1;
adam@1451	4363 }
adam@1483	4364
adam@1556	4365 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4366 int len;
adam@1703	4367 char *r;
adam@1703	4368
adam@1703	4369 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4370 r = ctx->heap.front;
adam@1703	4371 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4372 ctx->heap.front += len+1;
adam@1703	4373 return r;
adam@1556	4374 }
adam@1571	4375
adam@1571	4376 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4377 return n;
adam@1571	4378 }
adam@1571	4379
adam@1571	4380 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4381 return ceil(n);
adam@1571	4382 }
adam@1571	4383
adam@1571	4384 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4385 return trunc(n);
adam@1571	4386 }
adam@1571	4387
adam@1571	4388 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4389 return round(n);
adam@1571	4390 }
adam@1755	4391
adam@1755	4392 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755	4393 char *p;
adam@1755	4394
adam@1755	4395 for (p = s; *p; ++p) {
adam@1755	4396 char c = *p;
adam@1801	4397 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755	4398 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4399 }
adam@1755	4400
adam@1755	4401 return s;
adam@1755	4402 }
adam@1755	4403
adam@1755	4404 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4405 char *p;
adam@1755	4406
adam@1755	4407 for (p = s; *p; ++p) {
adam@1755	4408 char c = *p;
adam@1801	4409 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4410 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4411 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4412 }
adam@1755	4413
adam@1755	4414 return s;
adam@1755	4415 }
adam@1755	4416
adam@1755	4417 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4418 char *p;
adam@1755	4419
adam@1755	4420 if (!*s)
adam@1755	4421 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4422
adam@1801	4423 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4424 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4425
adam@1755	4426 for (p = s; *p; ++p) {
adam@1755	4427 char c = *p;
adam@1801	4428 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4429 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4430 }
adam@1755	4431
adam@1755	4432 return s;
adam@1755	4433 }
adam@1787	4434
adam@1787	4435 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4436 return f.name;
adam@1787	4437 }
adam@1787	4438
adam@1787	4439 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4440 return f.value;
adam@1787	4441 }
adam@1787	4442
adam@1787	4443 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4444 return f.remaining;
adam@1787	4445 }
adam@1787	4446
adam@1787	4447 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4448 char *unurl;
adam@1787	4449 uw_Basis_postField *f;
adam@1787	4450
adam@1788	4451 if (!ctx->hasPostBody)
adam@1788	4452 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4453
adam@1788	4454 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4455 return NULL;
adam@1787	4456
adam@1787	4457 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4458 unurl = s;
adam@1787	4459 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4460 s = strchr(s, 0);
adam@1788	4461 if (!s)
adam@1788	4462 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4463 ++s;
adam@1788	4464 unurl = s;
adam@1788	4465 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4466 s = strchr(s, 0);
adam@1788	4467 if (!s)
adam@1788	4468 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4469 f->remaining = s+1;
adam@1787	4470
adam@1787	4471 return f;
adam@1787	4472 }
adam@2008	4473
adam@2008	4474 uw_Basis_string uw_Basis_blessData(uw_context ctx, uw_Basis_string s) {
adam@2008	4475 char *p = s;
adam@2008	4476
adam@2008	4477 for (; *p; ++p)
adam@2008	4478 if (!isalnum(p) && p != '-' && *p != '_')
adam@2008	4479 uw_error(ctx, FATAL, "Illegal HTML5 data-* attribute: %s", s);
adam@2008	4480
adam@2008	4481 return s;
adam@2008	4482 }
adam@2073	4483
adam@2073	4484 int uw_remoteSock(uw_context ctx) {
adam@2073	4485 return ctx->remoteSock;
adam@2073	4486 }
adam@2073	4487
adam@2073	4488 void uw_set_remoteSock(uw_context ctx, int sock) {
adam@2073	4489 ctx->remoteSock = sock;
adam@2073	4490 }

Mercurial > urweb

annotate src/c/urweb.c @ 2224:5709482a2afd