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

annotate src/c/urweb.c @ 1628:3621f486ce72

Don't crash on invalid URL head terms during Tag

author	Adam Chlipala <adam@chlipala.net>
date	Sat, 03 Dec 2011 17:25:51 -0500
parents	43f22a8f76cc
children	438561303d02

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

Mercurial > urweb

annotate src/c/urweb.c @ 1628:3621f486ce72