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

annotate src/c/urweb.c @ 1512:dcc8abbc6dfd

Change cookie signature comparison to resist timing attacks (based on code suggested by Robin Green and Austin Seipp)

author	Adam Chlipala <adam@chlipala.net>
date	Tue, 19 Jul 2011 09:18:50 -0400
parents	7f8ddcf12b20
children	3c0803c1acd7

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

Mercurial > urweb

annotate src/c/urweb.c @ 1512:dcc8abbc6dfd