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

annotate src/c/urweb.c @ 1570:c7d0328ba777

Fix wildification for signatures with synonyms

author	Adam Chlipala <adam@chlipala.net>
date	Sat, 08 Oct 2011 14:16:13 -0400
parents	e1f5d9c4cc20
children	f403e129c276

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

Mercurial > urweb

annotate src/c/urweb.c @ 1570:c7d0328ba777