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

annotate src/c/urweb.c @ 1551:5175bed443f9

Warn about concurrency issues with message-passing

author	Adam Chlipala <adam@chlipala.net>
date	Sun, 28 Aug 2011 14:43:30 -0400
parents	3c0803c1acd7
children	c3b5cf5c2f98

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

Mercurial > urweb

annotate src/c/urweb.c @ 1551:5175bed443f9