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

annotate src/c/urweb.c @ 2209:0ca11d57c175

Cleans up interface (it's now a command line option) and renames project to "sqlcache" in the all-one-word style. Still has issues to do with concurrency, retrying transactions, and foreign function calls that either rely on state or have side effects.

author	Ziv Scully <ziv@mit.edu>
date	Sat, 31 May 2014 03:08:16 -0400
parents	cb74460f046a
children	ef766ef6e242

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

Mercurial > urweb

annotate src/c/urweb.c @ 2209:0ca11d57c175