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

annotate src/c/urweb.c @ 1707:c05e2e4bdde7

Refactor to avoid dependence on recursive mutexes

author	Adam Chlipala <adam@chlipala.net>
date	Sun, 08 Apr 2012 16:24:16 -0400
parents	6f2f74cc4ead
children	e263dab7b579

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

Mercurial > urweb

annotate src/c/urweb.c @ 1707:c05e2e4bdde7