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

annotate src/c/urweb.c @ 1552:c3b5cf5c2f98

Gentle handling of back-button returns to pages with stale message-passing credentials

author	Adam Chlipala <adam@chlipala.net>
date	Sun, 28 Aug 2011 17:16:54 -0400
parents	5175bed443f9
children	e1f5d9c4cc20

rev	line source
adamc@1268	1 #include "config.h"
adamc@1268	2
adamc@117	3 #include <stdlib.h>
adamc@102	4 #include <stdio.h>
adamc@117	5 #include <string.h>
adamc@457	6 #include <strings.h>
adamc@106	7 #include <ctype.h>
adamc@167	8 #include <setjmp.h>
adamc@167	9 #include <stdarg.h>
adamc@682	10 #include <assert.h>
adamc@741	11 #include <ctype.h>
adamc@1114	12 #include <limits.h>
adamc@1113	13 #include <stdint.h>
adamc@1094	14 #include <sys/types.h>
adamc@1094	15 #include <sys/socket.h>
adam@1397	16 #include <openssl/des.h>
adam@1486	17 #include <openssl/rand.h>
adam@1374	18 #include <time.h>
adamc@102	19
adamc@667	20 #include <pthread.h>
adamc@667	21
adamc@102	22 #include "types.h"
adamc@102	23
adam@1431	24 uw_unit uw_unit_v = 0;
adamc@102	25
adamc@667	26
adamc@667	27 // Socket extras
adamc@667	28
adamc@863	29 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667	30 while (len > 0) {
adamc@856	31 ssize_t n = send(sock, buf, len, 0);
adamc@856	32
adamc@856	33 if (n < 0)
adamc@856	34 return n;
adamc@856	35
adamc@856	36 buf += n;
adamc@856	37 len -= n;
adamc@856	38 }
adamc@856	39
adamc@856	40 return 0;
adamc@856	41 }
adamc@856	42
adamc@856	43 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856	44 while (len > 0) {
adamc@856	45 ssize_t n = write(fd, buf, len);
adamc@667	46
adamc@667	47 if (n < 0)
adamc@667	48 return n;
adamc@667	49
adamc@667	50 buf += n;
adamc@667	51 len -= n;
adamc@667	52 }
adamc@667	53
adamc@667	54 return 0;
adamc@667	55 }
adamc@667	56
adamc@667	57
adamc@667	58 // Buffers
adamc@667	59
adam@1369	60 void uw_buffer_init(size_t max, uw_buffer *b, size_t s) {
adamc@1113	61 b->max = max;
adamc@667	62 b->front = b->start = malloc(s);
adamc@667	63 b->back = b->front + s;
adamc@667	64 }
adamc@667	65
adam@1369	66 void uw_buffer_free(uw_buffer *b) {
adamc@667	67 free(b->start);
adamc@667	68 }
adamc@667	69
adam@1369	70 void uw_buffer_reset(uw_buffer *b) {
adamc@667	71 b->front = b->start;
adamc@667	72 }
adamc@667	73
adam@1369	74 int uw_buffer_check(uw_buffer *b, size_t extra) {
adamc@667	75 if (b->back - b->front < extra) {
adamc@667	76 size_t desired = b->front - b->start + extra, next;
adamc@667	77 char *new_heap;
adamc@667	78
adamc@667	79 next = b->back - b->start;
adamc@667	80 if (next == 0)
adamc@667	81 next = 1;
adamc@667	82 for (; next < desired; next *= 2);
adamc@667	83
adamc@1134	84 if (next > b->max) {
adamc@1113	85 if (desired <= b->max)
adamc@1113	86 next = desired;
adamc@1113	87 else
adamc@1113	88 return 1;
adamc@1134	89 }
adamc@1113	90
adamc@667	91 new_heap = realloc(b->start, next);
adamc@667	92 b->front = new_heap + (b->front - b->start);
adamc@667	93 b->back = new_heap + next;
adamc@667	94 b->start = new_heap;
adamc@667	95 }
adamc@1113	96
adamc@1113	97 return 0;
adamc@1113	98 }
adamc@1113	99
adamc@1113	100 __attribute__((noreturn)) void uw_error(uw_context, failure_kind, const char *, ...);
adamc@1113	101
adam@1369	102 static void ctx_uw_buffer_check(uw_context ctx, const char kind, uw_buffer b, size_t extra) {
adam@1369	103 if (uw_buffer_check(b, extra))
adamc@1113	104 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@667	105 }
adamc@667	106
adam@1369	107 size_t uw_buffer_used(uw_buffer *b) {
adamc@667	108 return b->front - b->start;
adamc@667	109 }
adamc@667	110
adam@1369	111 size_t uw_buffer_avail(uw_buffer *b) {
adamc@667	112 return b->back - b->start;
adamc@667	113 }
adamc@667	114
adam@1369	115 int uw_buffer_append(uw_buffer b, const char s, size_t len) {
adam@1369	116 if (uw_buffer_check(b, len+1))
adamc@1113	117 return 1;
adamc@1113	118
adamc@1113	119 memcpy(b->front, s, len);
adamc@1113	120 b->front += len;
adamc@1113	121 *b->front = 0;
adamc@1113	122
adamc@1113	123 return 0;
adamc@1113	124 }
adamc@1113	125
adam@1369	126 static void ctx_uw_buffer_append(uw_context ctx, const char kind, uw_buffer b, const char *s, size_t len) {
adam@1369	127 ctx_uw_buffer_check(ctx, kind, b, len+1);
adamc@1113	128
adamc@668	129 memcpy(b->front, s, len);
adamc@668	130 b->front += len;
adamc@672	131 *b->front = 0;
adamc@668	132 }
adamc@667	133
adamc@668	134
adamc@672	135 // Persistent state types
adamc@667	136
adamc@667	137 typedef enum { UNUSED, USED } usage;
adamc@667	138
adamc@667	139 typedef struct client {
adamc@682	140 unsigned id;
adamc@667	141 usage mode;
adamc@682	142 int pass;
adamc@682	143 struct client *next;
adamc@689	144 pthread_mutex_t lock, pull_lock;
adam@1369	145 uw_buffer msgs;
adamc@682	146 int sock;
adamc@863	147 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	148 int (*close)(int fd);
adamc@682	149 time_t last_contact;
adamc@682	150 unsigned n_channels;
adamc@685	151 unsigned refcount;
adamc@1121	152 void *data;
adamc@667	153 } client;
adamc@667	154
adamc@672	155
adamc@672	156 // Persistent client state
adamc@672	157
adamc@682	158 static client *clients, clients_free, *clients_used;
adamc@682	159 static unsigned n_clients;
adamc@667	160
adamc@667	161 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@667	162
adamc@1113	163 size_t uw_messages_max = SIZE_MAX;
adamc@1113	164 size_t uw_clients_max = SIZE_MAX;
adamc@1113	165
adamc@1121	166 void *uw_init_client_data();
adamc@1121	167 void uw_free_client_data(void *);
adamc@1121	168 void uw_copy_client_data(void dst, void src);
adamc@1121	169
adamc@682	170 static client *new_client() {
adamc@667	171 client *c;
adamc@667	172
adamc@667	173 pthread_mutex_lock(&clients_mutex);
adamc@667	174
adamc@667	175 if (clients_free) {
adamc@667	176 c = clients_free;
adamc@682	177 clients_free = clients_free->next;
adamc@667	178 }
adamc@1113	179 else if (n_clients >= uw_clients_max)
adamc@1113	180 return NULL;
adamc@667	181 else {
adamc@667	182 ++n_clients;
adamc@667	183 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	184 c = malloc(sizeof(client));
adamc@667	185 c->id = n_clients-1;
adamc@682	186 pthread_mutex_init(&c->lock, NULL);
adamc@689	187 pthread_mutex_init(&c->pull_lock, NULL);
adam@1369	188 uw_buffer_init(uw_messages_max, &c->msgs, 0);
adamc@667	189 clients[n_clients-1] = c;
adamc@667	190 }
adamc@667	191
adamc@682	192 pthread_mutex_lock(&c->lock);
adamc@667	193 c->mode = USED;
adamc@682	194 c->pass = rand();
adamc@682	195 c->sock = -1;
adamc@682	196 c->last_contact = time(NULL);
adam@1369	197 uw_buffer_reset(&c->msgs);
adamc@682	198 c->n_channels = 0;
adamc@685	199 c->refcount = 0;
adamc@1121	200 c->data = uw_init_client_data();
adamc@682	201 pthread_mutex_unlock(&c->lock);
adamc@682	202
adamc@682	203 c->next = clients_used;
adamc@682	204 clients_used = c;
adamc@667	205
adamc@667	206 pthread_mutex_unlock(&clients_mutex);
adamc@667	207
adamc@667	208 return c;
adamc@667	209 }
adamc@667	210
adamc@685	211 static void use_client(client *c) {
adamc@685	212 pthread_mutex_lock(&c->lock);
adamc@685	213 ++c->refcount;
adamc@685	214 pthread_mutex_unlock(&c->lock);
adamc@689	215 pthread_mutex_lock(&c->pull_lock);
adamc@685	216 }
adamc@685	217
adamc@685	218 static void release_client(client *c) {
adamc@689	219 pthread_mutex_unlock(&c->pull_lock);
adamc@685	220 pthread_mutex_lock(&c->lock);
adamc@685	221 --c->refcount;
adamc@685	222 pthread_mutex_unlock(&c->lock);
adamc@685	223 }
adamc@685	224
adamc@856	225 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adamc@667	226
adamc@682	227 static client *find_client(unsigned id) {
adamc@667	228 client *c;
adamc@667	229
adamc@667	230 pthread_mutex_lock(&clients_mutex);
adamc@667	231
adamc@667	232 if (id >= n_clients) {
adamc@667	233 pthread_mutex_unlock(&clients_mutex);
adamc@668	234 return NULL;
adamc@667	235 }
adamc@667	236
adamc@667	237 c = clients[id];
adamc@667	238
adamc@668	239 pthread_mutex_unlock(&clients_mutex);
adamc@668	240 return c;
adamc@668	241 }
adamc@668	242
adamc@856	243 static char *on_success = "HTTP/1.1 200 OK\r\n";
adam@1409	244 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	245
adamc@856	246 void uw_set_on_success(char *s) {
adamc@856	247 on_success = s;
adamc@856	248 }
adamc@856	249
adam@1552	250 static void chastise(int (send)(int sockfd, const void buf, ssize_t len), int sock) {
adam@1552	251 send(sock, on_success, strlen(on_success));
adam@1552	252 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1552	253 send(sock, "R", 1);
adam@1552	254 close(sock);
adam@1552	255 }
adam@1552	256
adamc@863	257 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	258 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	259 int (*close)(int fd),
adamc@864	260 void *logger_data, uw_logger log_error) {
adamc@682	261 client *c = find_client(id);
adamc@668	262
adamc@668	263 if (c == NULL) {
adam@1552	264 chastise(send, sock);
adamc@864	265 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	266 return;
adamc@667	267 }
adamc@667	268
adamc@682	269 pthread_mutex_lock(&c->lock);
adamc@671	270
adamc@682	271 if (c->mode != USED) {
adamc@682	272 pthread_mutex_unlock(&c->lock);
adam@1552	273 chastise(send, sock);
adamc@864	274 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	275 return;
adamc@667	276 }
adamc@667	277
adamc@682	278 if (pass != c->pass) {
adamc@682	279 pthread_mutex_unlock(&c->lock);
adam@1552	280 chastise(send, sock);
adamc@864	281 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	282 return;
adamc@667	283 }
adamc@667	284
adamc@682	285 if (c->sock != -1) {
adamc@863	286 c->close(c->sock);
adamc@682	287 c->sock = -1;
adamc@682	288 }
adamc@667	289
adamc@682	290 c->last_contact = time(NULL);
adamc@682	291
adam@1369	292 if (uw_buffer_used(&c->msgs) > 0) {
adamc@863	293 send(sock, on_success, strlen(on_success));
adamc@863	294 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1369	295 send(sock, c->msgs.start, uw_buffer_used(&c->msgs));
adam@1369	296 uw_buffer_reset(&c->msgs);
adamc@667	297 close(sock);
adamc@667	298 }
adamc@863	299 else {
adamc@682	300 c->sock = sock;
adamc@863	301 c->send = send;
adamc@863	302 c->close = close;
adamc@863	303 }
adamc@667	304
adamc@682	305 pthread_mutex_unlock(&c->lock);
adamc@667	306 }
adamc@667	307
adamc@682	308 static void free_client(client *c) {
adamc@682	309 c->mode = UNUSED;
adamc@682	310 c->pass = -1;
adamc@667	311
adamc@682	312 c->next = clients_free;
adamc@682	313 clients_free = c;
adamc@667	314 }
adamc@667	315
adamc@682	316 static uw_Basis_channel new_channel(client *c) {
adamc@682	317 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	318 return ch;
adamc@668	319 }
adamc@668	320
adam@1447	321 static void client_send(client c, uw_buffer msg, const char *script, int script_len) {
adamc@685	322 pthread_mutex_lock(&c->lock);
adamc@671	323
adamc@682	324 if (c->sock != -1) {
adamc@863	325 c->send(c->sock, on_success, strlen(on_success));
adamc@863	326 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1447	327 if (script_len > 0) {
adam@1447	328 c->send(c->sock, "E\n", 2);
adam@1447	329 c->send(c->sock, script, script_len);
adam@1447	330 c->send(c->sock, "\n", 1);
adam@1447	331 }
adam@1369	332 c->send(c->sock, msg->start, uw_buffer_used(msg));
adamc@863	333 c->close(c->sock);
adamc@682	334 c->sock = -1;
adam@1447	335 } else if ((script_len > 0
adam@1447	336 && (c->send(c->sock, "E\n", 2)
adam@1447	337 \|\| c->send(c->sock, script, script_len)
adam@1447	338 \|\| c->send(c->sock, "\n", 1)))
adam@1447	339 \|\| uw_buffer_append(&c->msgs, msg->start, uw_buffer_used(msg)))
adamc@1113	340 fprintf(stderr, "Client message buffer size exceeded");
adamc@671	341
adamc@685	342 pthread_mutex_unlock(&c->lock);
adamc@668	343 }
adamc@668	344
adamc@668	345
adamc@668	346 // Global entry points
adamc@668	347
adamc@1164	348 extern void uw_global_custom();
adamc@1104	349 extern void uw_init_crypto();
adamc@1104	350
adamc@668	351 void uw_global_init() {
adamc@668	352 srand(time(NULL) ^ getpid());
adamc@668	353
adamc@668	354 clients = malloc(0);
adamc@1104	355
adamc@1164	356 uw_global_custom();
adamc@1104	357 uw_init_crypto();
adamc@1094	358 }
adamc@1094	359
adamc@1094	360 void uw_app_init(uw_app *app) {
adamc@1094	361 app->client_init();
adamc@668	362 }
adamc@668	363
adam@1332	364 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114	365
adamc@668	366
adamc@667	367 // Single-request state
adamc@667	368
adamc@323	369 typedef struct regions {
adamc@323	370 struct regions *next;
adamc@323	371 } regions;
adamc@323	372
adamc@425	373 typedef struct {
adamc@425	374 void (func)(void);
adamc@425	375 void *arg;
adamc@425	376 } cleanup;
adamc@425	377
adamc@671	378 typedef struct {
adamc@682	379 unsigned client;
adam@1369	380 uw_buffer msgs;
adamc@682	381 } delta;
adamc@671	382
adamc@737	383 typedef enum {
adamc@759	384 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	385 } input_kind;
adamc@737	386
adamc@756	387 typedef struct input {
adamc@737	388 input_kind kind;
adamc@737	389 union {
adamc@737	390 char *normal;
adamc@739	391 uw_Basis_file file;
adamc@756	392 struct {
adamc@759	393 struct input fields, parent;
adamc@756	394 } subform;
adamc@759	395 struct {
adamc@759	396 struct input entries, parent;
adamc@759	397 } subforms;
adamc@759	398 struct {
adamc@759	399 struct input fields, next, *parent;
adamc@759	400 } entry;
adamc@737	401 } data;
adamc@737	402 } input;
adamc@737	403
adamc@771	404 typedef struct {
adamc@771	405 void *data;
adam@1327	406 uw_callback commit, rollback;
adam@1327	407 uw_callback_with_retry free;
adamc@771	408 } transactional;
adamc@771	409
adamc@1061	410 typedef struct {
adamc@1061	411 char *name;
adamc@1061	412 void *data;
adamc@1061	413 void (free)(void);
adamc@1061	414 } global;
adamc@1061	415
adamc@311	416 struct uw_context {
adamc@1094	417 uw_app *app;
adam@1446	418 int id;
adamc@1094	419
adamc@854	420 char (get_header)(void , const char );
adamc@854	421 void *get_header_data;
adamc@457	422
adam@1369	423 uw_buffer outHeaders, page, heap, script;
adam@1451	424 int allowed_to_return_indirectly, returning_indirectly;
adamc@759	425 input inputs, subinputs, *cur_container;
adamc@1094	426 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	427
adam@1446	428 unsigned long long source_count;
adamc@562	429
adamc@272	430 void *db;
adamc@272	431
adamc@167	432 jmp_buf jmp_buf;
adamc@167	433
adamc@323	434 regions *regions;
adamc@323	435
adamc@425	436 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	437
adamc@1094	438 const char *script_header;
adamc@643	439
adamc@736	440 int needs_push, needs_sig;
adamc@693	441
adamc@682	442 size_t n_deltas, used_deltas;
adamc@682	443 delta *deltas;
adamc@671	444
adamc@682	445 client *client;
adamc@682	446
adamc@771	447 transactional *transactionals;
adamc@771	448 size_t n_transactionals, used_transactionals;
adamc@771	449
adamc@1061	450 global *globals;
adamc@1061	451 size_t n_globals;
adamc@1061	452
adamc@1066	453 char *current_url;
adamc@1066	454
adamc@1114	455 int deadline;
adamc@1114	456
adamc@1121	457 void *client_data;
adamc@1121	458
adam@1334	459 void *logger_data;
adam@1334	460 uw_logger log_debug;
adam@1334	461
adam@1386	462 int isPost, hasPostBody;
adam@1347	463 uw_Basis_postBody postBody;
adam@1370	464 uw_Basis_string queryString;
adam@1347	465
adamc@167	466 char error_message[ERROR_BUF_LEN];
adamc@117	467 };
adamc@117	468
adamc@1113	469 size_t uw_headers_max = SIZE_MAX;
adamc@1113	470 size_t uw_page_max = SIZE_MAX;
adamc@1113	471 size_t uw_heap_max = SIZE_MAX;
adamc@1113	472 size_t uw_script_max = SIZE_MAX;
adamc@1113	473
adam@1446	474 uw_context uw_init(int id, void *logger_data, uw_logger log_debug) {
adamc@311	475 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	476
adamc@1094	477 ctx->app = NULL;
adam@1446	478 ctx->id = id;
adamc@1094	479
adamc@854	480 ctx->get_header = NULL;
adamc@854	481 ctx->get_header_data = NULL;
adamc@457	482
adam@1413	483 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413	484 ctx->outHeaders.start[0] = 0;
adam@1413	485 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413	486 ctx->page.start[0] = 0;
adam@1451	487 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	488 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369	489 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667	490 ctx->script.start[0] = 0;
adamc@136	491
adamc@1094	492 ctx->inputs = malloc(0);
adamc@759	493 ctx->cur_container = NULL;
adamc@756	494 ctx->subinputs = malloc(0);
adamc@1094	495 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	496
adamc@272	497 ctx->db = NULL;
adamc@272	498
adamc@323	499 ctx->regions = NULL;
adamc@323	500
adamc@425	501 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	502
adamc@643	503 ctx->script_header = "";
adamc@693	504 ctx->needs_push = 0;
adamc@736	505 ctx->needs_sig = 0;
adamc@1104	506
adamc@565	507 ctx->source_count = 0;
adamc@562	508
adamc@682	509 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	510 ctx->deltas = malloc(0);
adamc@671	511
adamc@700	512 ctx->client = NULL;
adamc@700	513
adamc@700	514 ctx->error_message[0] = 0;
adamc@700	515
adamc@771	516 ctx->transactionals = malloc(0);
adamc@771	517 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	518
adamc@1061	519 ctx->globals = malloc(0);
adamc@1061	520 ctx->n_globals = 0;
adamc@1061	521
adamc@1066	522 ctx->current_url = "";
adamc@1066	523
adamc@1114	524 ctx->deadline = INT_MAX;
adamc@1114	525
adamc@1121	526 ctx->client_data = uw_init_client_data();
adamc@1121	527
adam@1334	528 ctx->logger_data = logger_data;
adam@1334	529 ctx->log_debug = log_debug;
adam@1334	530
adam@1386	531 ctx->isPost = ctx->hasPostBody = 0;
adam@1347	532
adam@1370	533 ctx->queryString = NULL;
adam@1370	534
adamc@117	535 return ctx;
adamc@106	536 }
adamc@106	537
adamc@1113	538 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	539
adamc@1121	540 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	541 return ctx->app;
adamc@1121	542 }
adamc@1121	543
adamc@1113	544 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	545 ctx->app = app;
adamc@1094	546
adamc@1105	547 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	548 if (app->inputs_len > uw_inputs_max)
adamc@1113	549 return 1;
adamc@1113	550
adamc@1094	551 ctx->sz_inputs = app->inputs_len;
adamc@1094	552 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	553 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	554 }
adamc@1134	555
adamc@1134	556 return 0;
adamc@1094	557 }
adamc@1094	558
adamc@1121	559 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	560 uw_copy_client_data(ctx->client_data, data);
adamc@1121	561 }
adamc@1121	562
adamc@311	563 void uw_set_db(uw_context ctx, void *db) {
adamc@272	564 ctx->db = db;
adamc@272	565 }
adamc@272	566
adamc@311	567 void *uw_get_db(uw_context ctx) {
adamc@272	568 return ctx->db;
adamc@272	569 }
adamc@272	570
adamc@311	571 void uw_free(uw_context ctx) {
adamc@671	572 size_t i;
adamc@671	573
adam@1369	574 uw_buffer_free(&ctx->outHeaders);
adam@1369	575 uw_buffer_free(&ctx->script);
adam@1369	576 uw_buffer_free(&ctx->page);
adam@1369	577 uw_buffer_free(&ctx->heap);
adamc@144	578 free(ctx->inputs);
adamc@756	579 free(ctx->subinputs);
adamc@425	580 free(ctx->cleanup);
adamc@771	581 free(ctx->transactionals);
adamc@1121	582 uw_free_client_data(ctx->client_data);
adamc@671	583
adamc@682	584 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	585 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	586 free(ctx->deltas);
adamc@671	587
adamc@1061	588 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	589 if (ctx->globals[i].free)
adamc@1089	590 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	591 free(ctx->globals);
adamc@1061	592
adamc@136	593 free(ctx);
adamc@136	594 }
adamc@136	595
adamc@562	596 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	597 uw_buffer_reset(&ctx->outHeaders);
adam@1369	598 uw_buffer_reset(&ctx->script);
adamc@667	599 ctx->script.start[0] = 0;
adam@1369	600 uw_buffer_reset(&ctx->page);
adam@1451	601 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	602 uw_buffer_reset(&ctx->heap);
adamc@323	603 ctx->regions = NULL;
adamc@425	604 ctx->cleanup_front = ctx->cleanup;
adamc@682	605 ctx->used_deltas = 0;
adamc@682	606 ctx->client = NULL;
adamc@759	607 ctx->cur_container = NULL;
adamc@771	608 ctx->used_transactionals = 0;
adamc@1117	609 ctx->script_header = "";
adam@1370	610 ctx->queryString = NULL;
adamc@167	611 }
adamc@167	612
adamc@562	613 void uw_reset_keep_request(uw_context ctx) {
adamc@562	614 uw_reset_keep_error_message(ctx);
adamc@562	615 ctx->error_message[0] = 0;
adamc@167	616 }
adamc@167	617
adamc@311	618 void uw_reset(uw_context ctx) {
adamc@311	619 uw_reset_keep_request(ctx);
adamc@1105	620 if (ctx->app)
adamc@1105	621 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	622 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461	623 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adamc@144	624 }
adamc@144	625
adamc@311	626 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	627 int r = setjmp(ctx->jmp_buf);
adamc@272	628
adamc@1105	629 if (r == 0 && ctx->app)
adamc@1094	630 ctx->app->db_init(ctx);
adamc@272	631
adamc@272	632 return r;
adamc@272	633 }
adamc@272	634
adamc@1118	635 void uw_close(uw_context ctx) {
adamc@1118	636 ctx->app->db_close(ctx);
adamc@1118	637 }
adamc@1118	638
adam@1446	639 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	640 return ctx->get_header(ctx->get_header_data, h);
adam@1446	641 }
adam@1446	642
adamc@854	643 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	644 ctx->get_header = get_header;
adamc@854	645 ctx->get_header_data = get_header_data;
adamc@742	646 }
adamc@742	647
adamc@801	648 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	649 va_list ap;
adamc@801	650 va_start(ap, fmt);
adamc@801	651
adamc@801	652 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	653 }
adamc@801	654
adamc@1131	655 int uw_has_error(uw_context ctx) {
adamc@1131	656 return ctx->error_message[0] != 0;
adamc@1131	657 }
adamc@1131	658
adamc@311	659 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	660 cleanup *cl;
adamc@425	661
adamc@167	662 va_list ap;
adamc@167	663 va_start(ap, fmt);
adamc@167	664
adamc@167	665 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	666
adamc@425	667 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	668 cl->func(cl->arg);
adamc@425	669
adamc@425	670 ctx->cleanup_front = ctx->cleanup;
adamc@425	671
adamc@190	672 longjmp(ctx->jmp_buf, fk);
adamc@167	673 }
adamc@167	674
adamc@1113	675 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	676
adamc@425	677 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	678 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	679 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	680 if (len == 0)
adamc@425	681 newLen = 1;
adamc@425	682 else
adamc@428	683 newLen = len * 2;
adamc@1113	684
adamc@1134	685 if (newLen > uw_cleanup_max) {
adamc@1113	686 if (len+1 <= uw_cleanup_max)
adamc@1113	687 newLen = uw_cleanup_max;
adamc@1113	688 else
adamc@1113	689 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	690 }
adamc@1113	691
adamc@470	692 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	693 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	694 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	695 }
adamc@425	696
adamc@425	697 ctx->cleanup_front->func = func;
adamc@425	698 ctx->cleanup_front->arg = arg;
adamc@425	699 ++ctx->cleanup_front;
adamc@425	700 }
adamc@425	701
adam@1444	702 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	703
adamc@682	704 void uw_login(uw_context ctx) {
adamc@693	705 if (ctx->needs_push) {
adamc@682	706 char id_s, pass_s;
adamc@682	707
adamc@682	708 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682	709 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682	710 unsigned id = atoi(id_s);
adamc@682	711 int pass = atoi(pass_s);
adamc@682	712 client *c = find_client(id);
adamc@682	713
adamc@682	714 if (c == NULL)
adam@1444	715 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	716 else {
adamc@685	717 use_client(c);
adamc@682	718 ctx->client = c;
adamc@682	719
adamc@682	720 if (c->mode != USED)
adamc@682	721 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682	722 if (c->pass != pass)
adamc@682	723 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682	724 }
adamc@682	725 } else {
adamc@682	726 client *c = new_client();
adamc@1113	727
adamc@1113	728 if (c == NULL)
adamc@1113	729 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adamc@1113	730
adamc@685	731 use_client(c);
adamc@1121	732 uw_copy_client_data(c->data, ctx->client_data);
adamc@682	733 ctx->client = c;
adamc@864	734 }
adamc@682	735 }
adamc@682	736 }
adamc@682	737
adamc@671	738 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	739 int r = setjmp(ctx->jmp_buf);
adamc@671	740
adamc@671	741 if (r == 0) {
adamc@1094	742 if (ctx->app->db_begin(ctx))
adamc@671	743 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adamc@682	744
adamc@1094	745 ctx->app->handle(ctx, path);
adamc@671	746 }
adamc@671	747
adamc@671	748 return r;
adamc@671	749 }
adamc@671	750
adamc@772	751 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	752 if (ctx->client == NULL)
adamc@682	753 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	754
adamc@682	755 return ctx->client->id;
adamc@682	756 }
adamc@682	757
adamc@425	758 void uw_pop_cleanup(uw_context ctx) {
adamc@425	759 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	760 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	761
adamc@425	762 --ctx->cleanup_front;
adamc@425	763 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	764 }
adamc@425	765
adamc@311	766 char *uw_error_message(uw_context ctx) {
adamc@167	767 return ctx->error_message;
adamc@167	768 }
adamc@167	769
adamc@1115	770 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	771 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	772 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	773 }
adamc@1115	774
adamc@759	775 static input *INP(uw_context ctx) {
adamc@759	776 if (ctx->cur_container == NULL)
adamc@759	777 return ctx->inputs;
adamc@759	778 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	779 return ctx->cur_container->data.subform.fields;
adamc@759	780 else if (ctx->cur_container->kind == ENTRY)
adamc@759	781 return ctx->cur_container->data.entry.fields;
adamc@759	782 else
adamc@760	783 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	784 }
adamc@759	785
adamc@760	786 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	787 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	788 *ptr += new_start - old_start;
adamc@760	789 }
adamc@760	790
adamc@760	791 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	792 switch (x->kind) {
adamc@759	793 case SUBFORM:
adamc@760	794 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	795 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	796 break;
adamc@759	797 case SUBFORMS:
adamc@760	798 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	799 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	800 break;
adamc@759	801 case ENTRY:
adamc@760	802 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	803 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	804 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	805 break;
adamc@1134	806 default:
adamc@1134	807 break;
adamc@759	808 }
adamc@759	809 }
adamc@759	810
adamc@1113	811 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	812
adamc@759	813 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	814 size_t i;
adamc@759	815 input *r;
adamc@759	816
adamc@759	817 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	818 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	819 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	820
adamc@759	821 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	822
adamc@760	823 if (ctx->subinputs != new_subinputs) {
adamc@760	824 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	825 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	826 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	827 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	828
adamc@760	829 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	830
adamc@760	831 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	832 ctx->subinputs = new_subinputs;
adamc@760	833 }
adamc@759	834 }
adamc@759	835
adamc@759	836 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	837
adamc@759	838 for (i = 0; i < len; ++i)
adam@1474	839 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	840
adamc@759	841 return r;
adamc@759	842 }
adamc@756	843
adamc@801	844 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	845 //printf("Input name %s\n", name);
adamc@1038	846
adamc@756	847 if (!strcasecmp(name, ".b")) {
adamc@1094	848 int n = ctx->app->input_num(value);
adamc@756	849 input *inps;
adamc@756	850
adamc@801	851 if (n < 0) {
adam@1444	852 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	853 return -1;
adamc@801	854 }
adamc@801	855
adamc@1094	856 if (n >= ctx->app->inputs_len) {
adam@1444	857 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	858 return -1;
adamc@801	859 }
adamc@756	860
adamc@1094	861 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	862
adamc@759	863 INP(ctx)[n].kind = SUBFORM;
adamc@759	864 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	865 INP(ctx)[n].data.subform.fields = inps;
adamc@759	866 ctx->cur_container = &INP(ctx)[n];
adamc@756	867 } else if (!strcasecmp(name, ".e")) {
adamc@756	868 input *tmp;
adamc@756	869
adamc@801	870 if (ctx->cur_container == NULL) {
adamc@801	871 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	872 return -1;
adamc@801	873 }
adamc@756	874
adamc@759	875 tmp = ctx->cur_container;
adamc@759	876 switch (tmp->kind) {
adamc@759	877 case SUBFORM:
adamc@759	878 ctx->cur_container = tmp->data.subform.parent;
adamc@759	879 tmp->data.subform.parent = NULL;
adamc@759	880 break;
adamc@759	881 case SUBFORMS:
adamc@759	882 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	883 tmp->data.subforms.parent = NULL;
adamc@759	884 break;
adamc@759	885 case ENTRY:
adamc@759	886 ctx->cur_container = tmp->data.entry.parent;
adamc@759	887 break;
adamc@759	888 default:
adamc@801	889 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	890 return -1;
adamc@759	891 }
adamc@759	892 } else if (!strcasecmp(name, ".s")) {
adamc@1094	893 int n = ctx->app->input_num(value);
adamc@759	894
adamc@801	895 if (n < 0) {
adam@1444	896 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	897 return -1;
adamc@801	898 }
adamc@801	899
adamc@1094	900 if (n >= ctx->app->inputs_len) {
adam@1444	901 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	902 return -1;
adamc@801	903 }
adamc@759	904
adamc@759	905 INP(ctx)[n].kind = SUBFORMS;
adamc@759	906 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	907 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	908 ctx->cur_container = &INP(ctx)[n];
adamc@759	909 } else if (!strcasecmp(name, ".i")) {
adamc@759	910 input *inps;
adamc@759	911
adamc@801	912 if (!ctx->cur_container) {
adamc@801	913 uw_set_error(ctx, "New entry without container");
adamc@801	914 return -1;
adamc@801	915 }
adamc@801	916
adamc@801	917 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	918 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	919 return -1;
adamc@801	920 }
adamc@759	921
adamc@1094	922 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	923
adamc@759	924 inps->kind = ENTRY;
adamc@759	925 inps->data.entry.parent = ctx->cur_container;
adamc@759	926 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	927 ctx->cur_container->data.subforms.entries = inps;
adamc@759	928
adamc@759	929 inps->data.entry.fields = inps+1;
adamc@759	930 ctx->cur_container = inps;
adamc@756	931 } else {
adamc@1094	932 int n = ctx->app->input_num(name);
adamc@756	933
adam@1384	934 if (n < 0)
adam@1384	935 return 0;
adamc@801	936
adamc@1094	937 if (n >= ctx->app->inputs_len) {
adam@1444	938 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	939 return -1;
adamc@801	940 }
adamc@756	941
adamc@756	942 INP(ctx)[n].kind = NORMAL;
adamc@756	943 INP(ctx)[n].data.normal = value;
adamc@756	944 }
adamc@801	945
adamc@801	946 return 0;
adamc@144	947 }
adamc@144	948
adamc@311	949 char *uw_get_input(uw_context ctx, int n) {
adamc@169	950 if (n < 0)
adamc@311	951 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	952 if (n >= ctx->app->inputs_len)
adamc@311	953 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	954
adamc@756	955 switch (INP(ctx)[n].kind) {
adamc@737	956 case UNSET:
adamc@737	957 return NULL;
adamc@739	958 case FIL:
adamc@739	959 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	960 case SUBFORM:
adamc@756	961 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	962 case SUBFORMS:
adamc@759	963 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	964 case ENTRY:
adamc@759	965 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	966 case NORMAL:
adamc@756	967 return INP(ctx)[n].data.normal;
adamc@737	968 default:
adamc@737	969 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	970 }
adamc@138	971 }
adamc@138	972
adamc@311	973 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	974 if (n < 0)
adamc@311	975 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	976 if (n >= ctx->app->inputs_len)
adamc@311	977 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	978
adamc@756	979 switch (INP(ctx)[n].kind) {
adamc@737	980 case UNSET:
adamc@737	981 return "";
adamc@739	982 case FIL:
adamc@739	983 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	984 case SUBFORM:
adamc@756	985 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	986 case SUBFORMS:
adamc@759	987 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	988 case ENTRY:
adamc@759	989 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	990 case NORMAL:
adamc@756	991 return INP(ctx)[n].data.normal;
adamc@737	992 default:
adamc@737	993 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	994 }
adamc@737	995 }
adamc@737	996
adamc@801	997 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	998 int n = ctx->app->input_num(name);
adamc@737	999
adamc@801	1000 if (n < 0) {
adam@1444	1001 uw_set_error(ctx, "Bad file input name %s", uw_Basis_htmlifyString(ctx, name));
adamc@801	1002 return -1;
adamc@801	1003 }
adamc@801	1004
adamc@1094	1005 if (n >= ctx->app->inputs_len) {
adam@1444	1006 uw_set_error(ctx, "For file input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	1007 return -1;
adamc@801	1008 }
adamc@737	1009
adamc@739	1010 ctx->inputs[n].kind = FIL;
adamc@739	1011 ctx->inputs[n].data.file = f;
adamc@801	1012
adamc@801	1013 return 0;
adamc@737	1014 }
adamc@737	1015
adamc@739	1016 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1017
adamc@739	1018 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1019 if (n < 0)
adamc@737	1020 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1021 if (n >= ctx->app->inputs_len)
adamc@737	1022 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1023
adamc@756	1024 switch (INP(ctx)[n].kind) {
adamc@737	1025 case UNSET:
adamc@737	1026 {
adamc@739	1027 char *data = uw_malloc(ctx, 0);
adamc@740	1028 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1029 return f;
adamc@737	1030 }
adamc@739	1031 case FIL:
adamc@756	1032 return INP(ctx)[n].data.file;
adamc@737	1033 case NORMAL:
adamc@737	1034 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1035 case SUBFORM:
adamc@756	1036 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1037 case SUBFORMS:
adamc@759	1038 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1039 case ENTRY:
adamc@759	1040 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1041 default:
adamc@737	1042 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1043 }
adamc@190	1044 }
adamc@190	1045
adamc@756	1046 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1047 if (n < 0)
adamc@756	1048 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1049 if (n >= ctx->app->inputs_len)
adamc@756	1050 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1051
adamc@756	1052 switch (INP(ctx)[n].kind) {
adamc@756	1053 case UNSET:
adamc@756	1054 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1055 case FIL:
adamc@756	1056 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1057 case NORMAL:
adamc@756	1058 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1059 case SUBFORMS:
adamc@759	1060 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1061 case ENTRY:
adamc@759	1062 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1063 case SUBFORM:
adamc@759	1064 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1065 ctx->cur_container = &INP(ctx)[n];
adamc@756	1066 return;
adamc@756	1067 default:
adamc@756	1068 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1069 }
adamc@756	1070 }
adamc@756	1071
adamc@756	1072 void uw_leave_subform(uw_context ctx) {
adamc@756	1073 input *tmp;
adamc@756	1074
adamc@759	1075 if (ctx->cur_container == NULL)
adamc@756	1076 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1077
adamc@759	1078 tmp = ctx->cur_container;
adamc@759	1079 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1080 tmp->data.subform.parent = NULL;
adamc@759	1081 }
adamc@759	1082
adamc@759	1083 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1084 input *inps;
adamc@759	1085
adamc@759	1086 if (n < 0)
adamc@759	1087 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1088 if (n >= ctx->app->inputs_len)
adamc@759	1089 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1090
adamc@759	1091 switch (INP(ctx)[n].kind) {
adamc@759	1092 case UNSET:
adamc@759	1093 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1094 case FIL:
adamc@759	1095 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1096 case NORMAL:
adamc@759	1097 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1098 case SUBFORM:
adamc@759	1099 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1100 case ENTRY:
adamc@759	1101 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1102 case SUBFORMS:
adamc@759	1103 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1104 if (inps) {
adamc@759	1105 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1106 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1107 return 1;
adamc@759	1108 } else
adamc@759	1109 return 0;
adamc@759	1110 default:
adamc@759	1111 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1112 }
adamc@759	1113 }
adamc@759	1114
adamc@759	1115 int uw_next_entry(uw_context ctx) {
adamc@759	1116 if (ctx->cur_container == NULL)
adamc@759	1117 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1118
adamc@759	1119 switch (ctx->cur_container->kind) {
adamc@759	1120 case UNSET:
adamc@759	1121 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1122 case FIL:
adamc@759	1123 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1124 case NORMAL:
adamc@759	1125 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1126 case SUBFORM:
adamc@759	1127 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1128 case SUBFORMS:
adamc@759	1129 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1130 case ENTRY:
adamc@759	1131 if (ctx->cur_container->data.entry.next) {
adamc@759	1132 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1133 return 1;
adamc@759	1134 } else {
adamc@759	1135 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1136 return 0;
adamc@759	1137 }
adamc@759	1138 default:
adamc@759	1139 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1140 }
adamc@756	1141 }
adamc@756	1142
adamc@643	1143 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1144 ctx->script_header = s;
adamc@643	1145 }
adamc@643	1146
adamc@1094	1147 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1148 return ctx->app->url_prefix;
adamc@667	1149 }
adamc@667	1150
adamc@693	1151 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1152 ctx->needs_push = n;
adamc@693	1153 }
adamc@693	1154
adamc@736	1155 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1156 ctx->needs_sig = n;
adamc@736	1157 }
adamc@736	1158
adamc@667	1159
adam@1369	1160 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1161 if (b->back - b->front < extra) {
adamc@666	1162 size_t desired = b->front - b->start + extra, next;
adamc@136	1163 char *new_heap;
adamc@136	1164
adamc@666	1165 next = b->back - b->start;
adamc@317	1166 if (next == 0)
adamc@317	1167 next = 1;
adamc@317	1168 for (; next < desired; next *= 2);
adamc@136	1169
adamc@1134	1170 if (next > b->max) {
adamc@1113	1171 if (desired <= b->max)
adamc@1113	1172 next = desired;
adamc@1113	1173 else
adamc@1113	1174 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1175 }
adamc@1113	1176
adamc@666	1177 new_heap = realloc(b->start, next);
adamc@666	1178 b->front = new_heap + (b->front - b->start);
adamc@666	1179 b->back = new_heap + next;
adamc@136	1180
adamc@667	1181 if (new_heap != b->start) {
adamc@666	1182 b->start = new_heap;
adam@1389	1183 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1184 }
adamc@136	1185
adamc@666	1186 b->start = new_heap;
adamc@136	1187 }
adamc@136	1188 }
adamc@136	1189
adamc@832	1190 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1191 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1192 }
adamc@666	1193
adamc@832	1194 char *uw_heap_front(uw_context ctx) {
adamc@832	1195 return ctx->heap.front;
adamc@832	1196 }
adamc@832	1197
adamc@832	1198 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1199 ctx->heap.front = fr;
adamc@832	1200 }
adamc@832	1201
adamc@311	1202 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136	1203 void *result;
adamc@136	1204
adamc@311	1205 uw_check_heap(ctx, len);
adamc@136	1206
adamc@666	1207 result = ctx->heap.front;
adamc@666	1208 ctx->heap.front += len;
adamc@136	1209 return result;
adamc@117	1210 }
adamc@117	1211
adamc@323	1212 void uw_begin_region(uw_context ctx) {
adamc@666	1213 regions r = (regions ) ctx->heap.front;
adamc@323	1214
adamc@323	1215 uw_check_heap(ctx, sizeof(regions));
adamc@323	1216
adamc@666	1217 ctx->heap.front += sizeof(regions);
adamc@323	1218
adamc@323	1219 r->next = ctx->regions;
adamc@323	1220 ctx->regions = r;
adamc@323	1221 }
adamc@323	1222
adamc@323	1223 void uw_end_region(uw_context ctx) {
adamc@323	1224 regions *r = ctx->regions;
adamc@323	1225
adamc@323	1226 if (r == NULL)
adamc@323	1227 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1228
adamc@666	1229 ctx->heap.front = (char *) r;
adamc@323	1230 ctx->regions = r->next;
adamc@323	1231 }
adamc@323	1232
adamc@324	1233 void uw_memstats(uw_context ctx) {
adam@1369	1234 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1235 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1236 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1237 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1238 }
adamc@324	1239
adamc@311	1240 int uw_send(uw_context ctx, int sock) {
adamc@666	1241 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462	1242
adamc@462	1243 if (n < 0)
adamc@462	1244 return n;
adamc@462	1245
adamc@462	1246 n = uw_really_send(sock, "\r\n", 2);
adamc@462	1247
adamc@462	1248 if (n < 0)
adamc@462	1249 return n;
adamc@462	1250
adamc@666	1251 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462	1252 }
adamc@462	1253
adamc@856	1254 int uw_print(uw_context ctx, int fd) {
adamc@856	1255 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1256
adamc@856	1257 if (n < 0)
adamc@856	1258 return n;
adamc@856	1259
adamc@856	1260 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1261
adamc@856	1262 if (n < 0)
adamc@856	1263 return n;
adamc@856	1264
adamc@856	1265 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1266 }
adamc@856	1267
adamc@860	1268 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1269 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1270
adamc@860	1271 if (n < 0)
adamc@860	1272 return n;
adamc@860	1273
adamc@860	1274 n = output(data, "\r\n", 2);
adamc@860	1275
adamc@860	1276 if (n < 0)
adamc@860	1277 return n;
adamc@860	1278
adamc@860	1279 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1280 }
adamc@860	1281
adamc@462	1282 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1283 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1284 }
adamc@462	1285
adamc@462	1286 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1287 int len = strlen(s);
adamc@462	1288
adamc@462	1289 uw_check_headers(ctx, len + 1);
adamc@666	1290 strcpy(ctx->outHeaders.front, s);
adamc@666	1291 ctx->outHeaders.front += len;
adamc@562	1292 }
adamc@562	1293
adamc@1110	1294 void uw_clear_headers(uw_context ctx) {
adam@1369	1295 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1296 }
adamc@1110	1297
adamc@562	1298 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1299 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1300 }
adamc@562	1301
adamc@562	1302 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1303 int len = strlen(s);
adamc@562	1304
adamc@562	1305 uw_check_script(ctx, len + 1);
adamc@666	1306 strcpy(ctx->script.front, s);
adamc@666	1307 ctx->script.front += len;
adamc@562	1308 }
adamc@562	1309
adamc@645	1310 const char *uw_Basis_get_script(uw_context ctx, uw_unit u) {
adamc@916	1311 return "<sc>";
adamc@565	1312 }
adamc@565	1313
adam@1446	1314 const char *uw_get_real_script(uw_context ctx) {
adam@1446	1315 return ctx->script.start;
adam@1446	1316 }
adam@1446	1317
adamc@695	1318 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1319 if (s[0] == 0)
adamc@695	1320 return "";
adamc@695	1321 else {
adamc@695	1322 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1323 sprintf(r, " onload='%s'", s);
adamc@695	1324 return r;
adamc@695	1325 }
adamc@695	1326 }
adamc@695	1327
adamc@1042	1328 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1329 if (ctx->script_header[0] == 0)
adamc@1042	1330 return "";
adamc@1042	1331 else {
adamc@1042	1332 char *r = uw_malloc(ctx, 22 + strlen(s));
adamc@1042	1333 sprintf(r, " onunload='unload();%s'", s);
adamc@1042	1334 return r;
adamc@1042	1335 }
adamc@1042	1336 }
adamc@1042	1337
adamc@694	1338 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1339 if (ctx->client == NULL) {
adamc@736	1340 if (ctx->needs_sig) {
adamc@1094	1341 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1342 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1343 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1344 return r;
adamc@736	1345 }
adamc@736	1346 else
adamc@736	1347 return "";
adamc@736	1348 } else {
adamc@1094	1349 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1350 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1351 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1352 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1353 (ctx->isPost ? "true" : "false"),
adamc@682	1354 ctx->client->id,
adamc@682	1355 ctx->client->pass,
adamc@1094	1356 ctx->app->url_prefix,
adamc@1094	1357 ctx->app->timeout,
adamc@736	1358 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1359 sig,
adamc@736	1360 ctx->needs_sig ? "\";" : "");
adamc@679	1361 return r;
adamc@668	1362 }
adamc@667	1363 }
adamc@667	1364
adamc@574	1365 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1366 char r, s2;
adamc@574	1367
adam@1446	1368 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1369
adamc@666	1370 r = s2 = ctx->heap.front;
adamc@574	1371 *s2++ = '"';
adamc@574	1372
adamc@574	1373 for (; *s; s++) {
adam@1286	1374 unsigned char c = *s;
adamc@574	1375
adamc@574	1376 switch (c) {
adamc@574	1377 case '"':
adamc@574	1378 strcpy(s2, "\\\"");
adamc@574	1379 s2 += 2;
adamc@574	1380 break;
adamc@1027	1381 case '\'':
adamc@1027	1382 strcpy(s2, "\\047");
adamc@1027	1383 s2 += 4;
adamc@1027	1384 break;
adamc@574	1385 case '\\':
adamc@574	1386 strcpy(s2, "\\\\");
adamc@574	1387 s2 += 2;
adamc@574	1388 break;
adam@1457	1389 case '<':
adam@1457	1390 strcpy(s2, "\\074");
adam@1457	1391 s2 += 4;
adam@1457	1392 break;
adamc@574	1393 default:
adam@1286	1394 if (isprint((int)c) \|\| c >= 128)
adamc@574	1395 *s2++ = c;
adamc@574	1396 else {
adam@1429	1397 sprintf(s2, "\\%03o", c);
adamc@574	1398 s2 += 4;
adamc@574	1399 }
adamc@574	1400 }
adamc@574	1401 }
adamc@574	1402
adamc@574	1403 strcpy(s2, "\"");
adamc@910	1404 ctx->heap.front = s2 + 2;
adamc@574	1405 return r;
adamc@574	1406 }
adamc@574	1407
adam@1286	1408 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1409 unsigned char c = c1;
adamc@1025	1410 char r, s2;
adamc@1025	1411
adam@1446	1412 uw_check_heap(ctx, 7);
adamc@1025	1413
adamc@1025	1414 r = s2 = ctx->heap.front;
adamc@1025	1415 *s2++ = '"';
adamc@1025	1416
adamc@1025	1417 switch (c) {
adamc@1025	1418 case '"':
adamc@1025	1419 strcpy(s2, "\\\"");
adamc@1025	1420 s2 += 2;
adamc@1025	1421 break;
adamc@1027	1422 case '\'':
adamc@1027	1423 strcpy(s2, "\\047");
adamc@1027	1424 s2 += 4;
adamc@1027	1425 break;
adamc@1025	1426 case '\\':
adamc@1025	1427 strcpy(s2, "\\\\");
adamc@1025	1428 s2 += 2;
adamc@1025	1429 break;
adam@1457	1430 case '<':
adam@1457	1431 strcpy(s2, "\\074");
adam@1457	1432 s2 += 4;
adam@1457	1433 break;
adamc@1025	1434 default:
adam@1286	1435 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1436 *s2++ = c;
adamc@1025	1437 else {
adam@1429	1438 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1439 s2 += 4;
adamc@1025	1440 }
adamc@1025	1441 }
adamc@1025	1442
adamc@1025	1443 strcpy(s2, "\"");
adamc@1025	1444 ctx->heap.front = s2 + 2;
adamc@1025	1445 return r;
adamc@1025	1446 }
adamc@1025	1447
adamc@574	1448 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1449 char r, s2;
adamc@574	1450
adam@1446	1451 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1452
adamc@666	1453 r = s2 = ctx->script.front;
adamc@574	1454 *s2++ = '"';
adamc@574	1455
adamc@574	1456 for (; *s; s++) {
adam@1286	1457 unsigned char c = *s;
adamc@574	1458
adamc@574	1459 switch (c) {
adamc@577	1460 case '\'':
adamc@1027	1461 strcpy(s2, "\\");
adamc@574	1462 s2 += 2;
adamc@574	1463 break;
adamc@574	1464 case '\\':
adamc@574	1465 strcpy(s2, "\\\\");
adamc@574	1466 s2 += 2;
adamc@574	1467 break;
adam@1457	1468 case '<':
adam@1457	1469 strcpy(s2, "\\074");
adam@1457	1470 s2 += 4;
adam@1457	1471 break;
adamc@574	1472 default:
adam@1286	1473 if (isprint((int)c) \|\| c >= 128)
adamc@574	1474 *s2++ = c;
adamc@574	1475 else {
adam@1429	1476 sprintf(s2, "\\%03o", c);
adamc@574	1477 s2 += 4;
adamc@574	1478 }
adamc@574	1479 }
adamc@574	1480 }
adamc@574	1481
adamc@574	1482 strcpy(s2, "\"");
adamc@666	1483 ctx->script.front = s2 + 1;
adamc@574	1484 return r;
adamc@574	1485 }
adamc@574	1486
adamc@682	1487 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1488 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1489 return "null";
adamc@682	1490 else {
adamc@682	1491 int len;
adamc@682	1492 char *r;
adamc@682	1493
adamc@682	1494 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1495 r = ctx->heap.front;
adamc@682	1496 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1497 ctx->heap.front += len+1;
adamc@682	1498 return r;
adamc@682	1499 }
adamc@682	1500 }
adamc@682	1501
adam@1446	1502 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1503 int len;
adamc@577	1504 size_t s_len = strlen(s);
adamc@562	1505
adam@1446	1506 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1507 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1508 ctx->script.front += len;
adamc@666	1509 strcpy(ctx->script.front, s);
adamc@666	1510 ctx->script.front += s_len;
adamc@970	1511 strcpy(ctx->script.front, "));");
adamc@972	1512 ctx->script.front += 3;
adamc@562	1513
adam@1446	1514 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1515 return r;
adam@1446	1516 }
adam@1446	1517
adam@1446	1518 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1519 int len;
adamc@577	1520 size_t s_len = strlen(s);
adamc@577	1521
adam@1446	1522 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1523 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1524 ctx->script.front += len;
adamc@666	1525 strcpy(ctx->script.front, s);
adamc@666	1526 ctx->script.front += s_len;
adamc@970	1527 strcpy(ctx->script.front, "));");
adamc@972	1528 ctx->script.front += 3;
adamc@577	1529
adamc@577	1530 return uw_unit_v;
adamc@577	1531 }
adamc@577	1532
adamc@311	1533 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1534 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1535 }
adamc@117	1536
adamc@311	1537 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1538 *(ctx->page.front)++ = c;
adam@1413	1539 *ctx->page.front = 0;
adamc@117	1540 }
adamc@117	1541
adamc@311	1542 void uw_writec(uw_context ctx, char c) {
adam@1413	1543 uw_check(ctx, 2);
adamc@311	1544 uw_writec_unsafe(ctx, c);
adamc@117	1545 }
adamc@117	1546
adamc@311	1547 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1548 int len = strlen(s);
adamc@666	1549 memcpy(ctx->page.front, s, len);
adamc@666	1550 ctx->page.front += len;
adamc@117	1551 }
adamc@117	1552
adamc@311	1553 void uw_write(uw_context ctx, const char* s) {
adamc@311	1554 uw_check(ctx, strlen(s) + 1);
adamc@311	1555 uw_write_unsafe(ctx, s);
adamc@666	1556 *ctx->page.front = 0;
adamc@102	1557 }
adamc@106	1558
adamc@311	1559 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1560 char *result;
adamc@136	1561 int len;
adamc@311	1562 uw_check_heap(ctx, INTS_MAX);
adamc@666	1563 result = ctx->heap.front;
adamc@276	1564 sprintf(result, "%lld%n", n, &len);
adamc@666	1565 ctx->heap.front += len+1;
adamc@136	1566 return result;
adamc@106	1567 }
adamc@106	1568
adamc@311	1569 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1570 char *result;
adamc@136	1571 int len;
adamc@311	1572 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1573 result = ctx->heap.front;
adamc@136	1574 sprintf(result, "%g%n", n, &len);
adamc@666	1575 ctx->heap.front += len+1;
adamc@136	1576 return result;
adamc@106	1577 }
adamc@106	1578
adamc@311	1579 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1580 int len = strlen(s);
adamc@136	1581 char result, p;
adamc@311	1582 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1583
adamc@666	1584 result = p = ctx->heap.front;
adamc@136	1585
adamc@136	1586 for (; *s; s++) {
adamc@1054	1587 unsigned char c = *s;
adamc@136	1588
adamc@136	1589 if (c == '"') {
adamc@136	1590 strcpy(p, """);
adamc@136	1591 p += 6;
adamc@136	1592 } else if (c == '&') {
adamc@136	1593 strcpy(p, "&");
adamc@136	1594 p += 5;
adamc@136	1595 }
adamc@1059	1596 else
adamc@136	1597 *p++ = c;
adamc@136	1598 }
adamc@136	1599
adamc@137	1600 *p++ = 0;
adamc@666	1601 ctx->heap.front = p;
adamc@136	1602 return result;
adamc@106	1603 }
adamc@106	1604
adamc@1011	1605 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1606 char result, p;
adamc@1011	1607 uw_check_heap(ctx, 7);
adamc@1011	1608
adamc@1011	1609 result = p = ctx->heap.front;
adamc@1011	1610
adamc@1011	1611 if (c == '"') {
adamc@1011	1612 strcpy(p, """);
adamc@1011	1613 p += 6;
adamc@1011	1614 } else if (c == '&') {
adamc@1011	1615 strcpy(p, "&");
adamc@1011	1616 p += 5;
adamc@1011	1617 }
adamc@1059	1618 else
adamc@1011	1619 *p++ = c;
adamc@1011	1620
adamc@1011	1621 *p++ = 0;
adamc@1011	1622 ctx->heap.front = p;
adamc@1011	1623 return result;
adamc@1011	1624 }
adamc@1011	1625
adamc@721	1626 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1627 return s;
adamc@721	1628 }
adamc@721	1629
adamc@311	1630 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1631 int len;
adamc@117	1632
adamc@666	1633 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1634 ctx->page.front += len;
adamc@106	1635 }
adamc@106	1636
adamc@428	1637 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1638 uw_check(ctx, INTS_MAX);
adamc@311	1639 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1640
adamc@428	1641 return uw_unit_v;
adamc@106	1642 }
adamc@106	1643
adamc@428	1644 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1645 int len;
adamc@117	1646
adamc@311	1647 uw_check(ctx, FLOATS_MAX);
adamc@666	1648 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1649 ctx->page.front += len;
adamc@428	1650
adamc@428	1651 return uw_unit_v;
adamc@117	1652 }
adamc@117	1653
adamc@428	1654 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1655 uw_check(ctx, strlen(s) * 6);
adamc@117	1656
adamc@106	1657 for (; *s; s++) {
adamc@1054	1658 unsigned char c = *s;
adamc@106	1659
adamc@106	1660 if (c == '"')
adamc@311	1661 uw_write_unsafe(ctx, """);
adamc@136	1662 else if (c == '&')
adamc@311	1663 uw_write_unsafe(ctx, "&");
adamc@1059	1664 else
adamc@311	1665 uw_writec_unsafe(ctx, c);
adamc@106	1666 }
adamc@428	1667
adamc@428	1668 return uw_unit_v;
adamc@106	1669 }
adamc@120	1670
adamc@1011	1671 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1672 uw_check(ctx, 6);
adamc@1011	1673
adamc@1011	1674 if (c == '"')
adamc@1011	1675 uw_write_unsafe(ctx, """);
adamc@1011	1676 else if (c == '&')
adamc@1011	1677 uw_write_unsafe(ctx, "&");
adamc@1059	1678 else
adamc@1011	1679 uw_writec_unsafe(ctx, c);
adamc@1011	1680
adamc@1011	1681 return uw_unit_v;
adamc@1011	1682 }
adamc@1011	1683
adamc@120	1684
adamc@311	1685 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1686 int len;
adamc@137	1687 char *r;
adamc@137	1688
adamc@311	1689 uw_check_heap(ctx, INTS_MAX);
adamc@666	1690 r = ctx->heap.front;
adamc@276	1691 sprintf(r, "%lld%n", n, &len);
adamc@666	1692 ctx->heap.front += len+1;
adamc@137	1693 return r;
adamc@120	1694 }
adamc@120	1695
adamc@682	1696 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1697 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1698 return "";
adamc@682	1699 else {
adamc@682	1700 int len;
adamc@682	1701 char *r;
adamc@679	1702
adamc@682	1703 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1704 r = ctx->heap.front;
adamc@682	1705 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1706 ctx->heap.front += len+1;
adamc@682	1707 return r;
adamc@682	1708 }
adamc@679	1709 }
adamc@679	1710
adamc@311	1711 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1712 int len;
adamc@137	1713 char *r;
adamc@137	1714
adamc@311	1715 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1716 r = ctx->heap.front;
adamc@137	1717 sprintf(r, "%g%n", n, &len);
adamc@666	1718 ctx->heap.front += len+1;
adamc@137	1719 return r;
adamc@120	1720 }
adamc@120	1721
adamc@311	1722 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1723 char r, p;
adamc@137	1724
adamc@925	1725 if (s[0] == '\0')
adamc@925	1726 return "_";
adamc@925	1727
adamc@925	1728 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1729
adamc@925	1730 r = p = ctx->heap.front;
adamc@925	1731 if (s[0] == '_')
adamc@925	1732 *p++ = '_';
adamc@925	1733
adamc@925	1734 for (; *s; s++) {
adamc@1087	1735 unsigned char c = *s;
adamc@137	1736
adamc@137	1737 if (c == ' ')
adamc@137	1738 *p++ = '+';
adamc@137	1739 else if (isalnum(c))
adamc@137	1740 *p++ = c;
adamc@137	1741 else {
adamc@1259	1742 sprintf(p, ".%02X", c);
adamc@137	1743 p += 3;
adamc@137	1744 }
adamc@137	1745 }
adamc@137	1746
adamc@137	1747 *p++ = 0;
adamc@666	1748 ctx->heap.front = p;
adamc@137	1749 return r;
adamc@120	1750 }
adamc@120	1751
adamc@311	1752 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1753 if (b == uw_Basis_False)
adamc@186	1754 return "0";
adamc@186	1755 else
adamc@186	1756 return "1";
adamc@186	1757 }
adamc@186	1758
adamc@311	1759 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1760 int len;
adamc@120	1761
adamc@666	1762 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1763 ctx->page.front += len;
adamc@120	1764 }
adamc@120	1765
adamc@428	1766 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1767 uw_check(ctx, INTS_MAX);
adamc@311	1768 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1769
adamc@428	1770 return uw_unit_v;
adamc@120	1771 }
adamc@120	1772
adamc@682	1773 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1774 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1775 int len;
adamc@682	1776
adamc@682	1777 uw_check(ctx, INTS_MAX + 1);
adamc@682	1778 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1779 ctx->page.front += len;
adamc@682	1780 }
adamc@682	1781
adamc@679	1782 return uw_unit_v;
adamc@679	1783 }
adamc@679	1784
adamc@428	1785 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1786 int len;
adamc@120	1787
adamc@311	1788 uw_check(ctx, FLOATS_MAX);
adamc@666	1789 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1790 ctx->page.front += len;
adamc@428	1791
adamc@428	1792 return uw_unit_v;
adamc@120	1793 }
adamc@120	1794
adamc@488	1795 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1796 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1797 }
adamc@488	1798
adam@1404	1799 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1800 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1801 }
adam@1404	1802
adamc@428	1803 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1804 if (s[0] == '\0') {
adamc@925	1805 uw_check(ctx, 1);
adamc@925	1806 uw_writec_unsafe(ctx, '_');
adamc@925	1807 return uw_unit_v;
adamc@925	1808 }
adamc@925	1809
adamc@925	1810 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1811
adamc@925	1812 if (s[0] == '_')
adamc@925	1813 uw_writec_unsafe(ctx, '_');
adamc@120	1814
adamc@120	1815 for (; *s; s++) {
adamc@1087	1816 unsigned char c = *s;
adamc@120	1817
adamc@120	1818 if (c == ' ')
adamc@311	1819 uw_writec_unsafe(ctx, '+');
adamc@120	1820 else if (isalnum(c))
adamc@311	1821 uw_writec_unsafe(ctx, c);
adamc@120	1822 else {
adamc@1259	1823 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1824 ctx->page.front += 3;
adamc@120	1825 }
adamc@120	1826 }
adamc@428	1827
adamc@428	1828 return uw_unit_v;
adamc@120	1829 }
adamc@120	1830
adamc@428	1831 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1832 if (b == uw_Basis_False)
adamc@311	1833 uw_writec(ctx, '0');
adamc@186	1834 else
adamc@311	1835 uw_writec(ctx, '1');
adamc@428	1836
adamc@428	1837 return uw_unit_v;
adamc@186	1838 }
adamc@186	1839
adamc@120	1840
adamc@311	1841 static char uw_unurlify_advance(char s) {
adamc@144	1842 char *new_s = strchr(s, '/');
adamc@120	1843
adamc@120	1844 if (new_s)
adamc@120	1845 *new_s++ = 0;
adamc@120	1846 else
adamc@144	1847 new_s = strchr(s, 0);
adamc@144	1848
adamc@144	1849 return new_s;
adamc@144	1850 }
adamc@144	1851
adamc@311	1852 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1853 char new_s = uw_unurlify_advance(s);
adamc@311	1854 uw_Basis_int r;
adamc@120	1855
adamc@276	1856 r = atoll(*s);
adamc@120	1857 *s = new_s;
adamc@120	1858 return r;
adamc@120	1859 }
adamc@120	1860
adamc@311	1861 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1862 char new_s = uw_unurlify_advance(s);
adamc@311	1863 uw_Basis_float r;
adamc@120	1864
adamc@120	1865 r = atof(*s);
adamc@120	1866 *s = new_s;
adamc@120	1867 return r;
adamc@120	1868 }
adamc@120	1869
adamc@488	1870 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	1871 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	1872 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	1873 return r;
adamc@488	1874 }
adamc@488	1875
adamc@1023	1876 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1877 char s1, s2 = s;
adamc@144	1878 int n;
adamc@136	1879
adamc@1023	1880 if (!fromClient) {
adamc@1023	1881 if (*s2 == '_')
adamc@1023	1882 ++s2;
adamc@1259	1883 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1884 s2 += 3;
adamc@1023	1885 }
adamc@925	1886
adamc@927	1887 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	1888 unsigned char c = *s2;
adamc@136	1889
adamc@136	1890 switch (c) {
adamc@136	1891 case '+':
adamc@136	1892 *s1 = ' ';
adamc@136	1893 break;
adamc@136	1894 case '%':
adamc@169	1895 if (s2[1] == 0)
adamc@311	1896 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1897 if (s2[2] == 0)
adamc@311	1898 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1899 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	1900 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	1901 *s1 = n;
adamc@136	1902 s2 += 2;
adamc@136	1903 break;
adamc@1259	1904 case '.':
adamc@1259	1905 if (!fromClient) {
adamc@1259	1906 if (s2[1] == 0)
adamc@1259	1907 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	1908 if (s2[2] == 0)
adamc@1259	1909 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	1910 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	1911 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	1912 *s1 = n;
adamc@1259	1913 s2 += 2;
adamc@1259	1914 break;
adamc@1259	1915 }
adamc@136	1916 default:
adamc@136	1917 *s1 = c;
adamc@136	1918 }
adamc@136	1919 }
adamc@136	1920 *s1++ = 0;
adamc@144	1921 return s1;
adamc@144	1922 }
adamc@144	1923
adamc@311	1924 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	1925 char new_s = uw_unurlify_advance(s);
adamc@311	1926 uw_Basis_bool r;
adamc@186	1927
adamc@186	1928 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	1929 r = uw_Basis_False;
adamc@186	1930 else
adamc@311	1931 r = uw_Basis_True;
adamc@186	1932
adamc@186	1933 *s = new_s;
adamc@186	1934 return r;
adamc@186	1935 }
adamc@186	1936
adamc@311	1937 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	1938 char new_s = uw_unurlify_advance(s);
adamc@1134	1939 char *r;
adamc@1134	1940 int len;
adamc@144	1941
adamc@200	1942 len = strlen(*s);
adamc@311	1943 uw_check_heap(ctx, len + 1);
adamc@144	1944
adamc@666	1945 r = ctx->heap.front;
adamc@1023	1946 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	1947 *s = new_s;
adamc@1023	1948 return r;
adamc@1023	1949 }
adamc@1023	1950
adamc@1109	1951 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	1952 s = uw_unurlify_advance(s);
adamc@1109	1953 return uw_unit_v;
adamc@1109	1954 }
adamc@1109	1955
adamc@1023	1956 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	1957 char new_s = uw_unurlify_advance(s);
adamc@1134	1958 char *r;
adamc@1134	1959 int len;
adamc@1023	1960
adamc@1023	1961 len = strlen(*s);
adamc@1023	1962 uw_check_heap(ctx, len + 1);
adamc@1023	1963
adamc@1023	1964 r = ctx->heap.front;
adamc@1023	1965 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	1966 *s = new_s;
adamc@136	1967 return r;
adamc@120	1968 }
adamc@135	1969
adamc@135	1970
adamc@311	1971 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	1972 int len;
adamc@286	1973 char *r;
adamc@286	1974
adamc@311	1975 uw_check_heap(ctx, INTS_MAX);
adamc@666	1976 r = ctx->heap.front;
adamc@286	1977 sprintf(r, "%lld%n", n, &len);
adamc@666	1978 ctx->heap.front += len+1;
adamc@286	1979 return r;
adamc@286	1980 }
adamc@286	1981
adamc@428	1982 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	1983 int len;
adamc@286	1984
adamc@311	1985 uw_check(ctx, INTS_MAX);
adamc@666	1986 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1987 ctx->page.front += len;
adamc@428	1988
adamc@428	1989 return uw_unit_v;
adamc@286	1990 }
adamc@286	1991
adam@1358	1992 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	1993 unsigned int n = ch;
adam@1358	1994 int len;
adam@1358	1995 char *r;
adam@1358	1996
adam@1358	1997 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	1998 r = ctx->heap.front;
adam@1358	1999 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2000 ctx->heap.front += len+1;
adam@1358	2001 return r;
adam@1358	2002 }
adam@1358	2003
adam@1358	2004 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2005 unsigned int n = ch;
adam@1358	2006 int len;
adam@1358	2007
adam@1358	2008 uw_check(ctx, INTS_MAX+3);
adam@1358	2009 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2010 ctx->page.front += len;
adam@1358	2011 return uw_unit_v;
adam@1358	2012 }
adam@1358	2013
adamc@311	2014 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2015 int len;
adamc@286	2016 char *r;
adamc@286	2017
adamc@311	2018 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2019 r = ctx->heap.front;
adamc@286	2020 sprintf(r, "%g%n", n, &len);
adamc@666	2021 ctx->heap.front += len+1;
adamc@286	2022 return r;
adamc@286	2023 }
adamc@286	2024
adamc@428	2025 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2026 int len;
adamc@286	2027
adamc@311	2028 uw_check(ctx, FLOATS_MAX);
adamc@666	2029 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2030 ctx->page.front += len;
adamc@428	2031
adamc@428	2032 return uw_unit_v;
adamc@286	2033 }
adamc@286	2034
adam@1365	2035 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2036 int len;
adam@1360	2037 char *r;
adam@1360	2038
adam@1360	2039 uw_check_heap(ctx, INTS_MAX);
adam@1360	2040 r = ctx->heap.front;
adamc@1377	2041 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2042 ctx->heap.front += len+1;
adam@1360	2043 return r;
adam@1360	2044 }
adam@1360	2045
adam@1365	2046 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2047 int len;
adam@1360	2048
adam@1360	2049 uw_check(ctx, INTS_MAX);
adam@1360	2050 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2051 ctx->page.front += len;
adam@1360	2052
adam@1360	2053 return uw_unit_v;
adam@1360	2054 }
adam@1360	2055
adam@1444	2056 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2057 char r, s2;
adamc@137	2058
adamc@311	2059 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2060
adamc@666	2061 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2062 unsigned char c = *s;
adamc@137	2063
adamc@137	2064 switch (c) {
adamc@137	2065 case '<':
adamc@137	2066 strcpy(s2, "<");
adamc@137	2067 s2 += 4;
adamc@137	2068 break;
adamc@137	2069 case '&':
adamc@137	2070 strcpy(s2, "&");
adamc@137	2071 s2 += 5;
adamc@137	2072 break;
adamc@137	2073 default:
adamc@1059	2074 *s2++ = c;
adamc@137	2075 }
adamc@137	2076 }
adamc@137	2077
adamc@137	2078 *s2++ = 0;
adamc@666	2079 ctx->heap.front = s2;
adamc@137	2080 return r;
adamc@135	2081 }
adamc@135	2082
adamc@428	2083 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2084 uw_check(ctx, strlen(s) * 6);
adamc@135	2085
adamc@135	2086 for (; *s; s++) {
adamc@1054	2087 unsigned char c = *s;
adamc@135	2088
adamc@135	2089 switch (c) {
adamc@135	2090 case '<':
adamc@311	2091 uw_write_unsafe(ctx, "<");
adamc@135	2092 break;
adamc@135	2093 case '&':
adamc@311	2094 uw_write_unsafe(ctx, "&");
adamc@135	2095 break;
adamc@135	2096 default:
adamc@1059	2097 uw_writec_unsafe(ctx, c);
adamc@135	2098 }
adamc@135	2099 }
adamc@428	2100
adamc@428	2101 return uw_unit_v;
adamc@135	2102 }
adamc@180	2103
adamc@311	2104 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2105 if (b == uw_Basis_False)
adamc@286	2106 return "False";
adamc@286	2107 else
adamc@286	2108 return "True";
adamc@286	2109 }
adamc@286	2110
adamc@428	2111 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2112 if (b == uw_Basis_False) {
adamc@311	2113 uw_check(ctx, 6);
adamc@666	2114 strcpy(ctx->page.front, "False");
adamc@666	2115 ctx->page.front += 5;
adamc@286	2116 } else {
adamc@311	2117 uw_check(ctx, 5);
adamc@666	2118 strcpy(ctx->page.front, "True");
adamc@666	2119 ctx->page.front += 4;
adamc@286	2120 }
adamc@428	2121
adamc@428	2122 return uw_unit_v;
adamc@286	2123 }
adamc@286	2124
adamc@436	2125 #define TIME_FMT "%x %X"
adamc@438	2126 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436	2127
adamc@436	2128 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436	2129 size_t len;
adamc@436	2130 char *r;
adam@1392	2131 struct tm stm = {};
adam@1392	2132 stm.tm_isdst = -1;
adamc@436	2133
adam@1365	2134 if (localtime_r(&t.seconds, &stm)) {
adamc@436	2135 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2136 r = ctx->heap.front;
adamc@436	2137 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2138 ctx->heap.front += len+1;
adamc@436	2139 return r;
adamc@436	2140 } else
adamc@436	2141 return "<i>Invalid time</i>";
adamc@436	2142 }
adamc@436	2143
adamc@436	2144 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436	2145 size_t len;
adamc@436	2146 char *r;
adam@1392	2147 struct tm stm = {};
adam@1392	2148 stm.tm_isdst = -1;
adamc@436	2149
adam@1365	2150 if (localtime_r(&t.seconds, &stm)) {
adamc@436	2151 uw_check(ctx, TIMES_MAX);
adamc@666	2152 r = ctx->page.front;
adamc@436	2153 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2154 ctx->page.front += len;
adamc@436	2155 } else {
adamc@436	2156 uw_check(ctx, 20);
adamc@666	2157 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666	2158 ctx->page.front += 19;
adamc@436	2159 }
adamc@436	2160
adamc@436	2161 return uw_unit_v;
adamc@436	2162 }
adamc@436	2163
adam@1446	2164 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2165 int len;
adam@1446	2166 char *r;
adam@1446	2167
adam@1446	2168 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2169 r = ctx->heap.front;
adam@1446	2170 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2171 ctx->heap.front += len+1;
adam@1446	2172 return r;
adam@1446	2173 }
adam@1446	2174
adam@1446	2175 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2176 int len;
adam@1446	2177
adam@1446	2178 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2179 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2180 ctx->page.front += len;
adam@1446	2181
adam@1446	2182 return uw_unit_v;
adam@1446	2183 }
adam@1446	2184
adamc@821	2185 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2186 while (n >= 0) {
adam@1388	2187 if (*s == 0)
adam@1388	2188 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2189
adam@1388	2190 if (n == 0)
adam@1388	2191 return *s;
adam@1388	2192
adam@1388	2193 --n;
adam@1388	2194 ++s;
adam@1388	2195 }
adam@1388	2196
adam@1388	2197 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2198 }
adamc@821	2199
adamc@821	2200 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2201 while (n >= 0) {
adam@1388	2202 if (*s == 0 \|\| n == 0)
adam@1388	2203 return s;
adam@1388	2204
adam@1388	2205 --n;
adam@1388	2206 ++s;
adam@1388	2207 }
adam@1388	2208
adam@1388	2209 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2210 }
adamc@821	2211
adamc@828	2212 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2213 return strlen(s);
adamc@828	2214 }
adamc@828	2215
adam@1388	2216 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2217 while (n > 0) {
adam@1388	2218 if (*s == 0)
adam@1388	2219 return uw_Basis_False;
adam@1388	2220
adam@1388	2221 --n;
adam@1388	2222 ++s;
adam@1388	2223 }
adam@1388	2224
adam@1388	2225 return uw_Basis_True;
adam@1388	2226 }
adam@1388	2227
adamc@829	2228 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2229 return strchr(s, ch);
adamc@829	2230 }
adamc@829	2231
adamc@831	2232 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2233 return strcspn(s, chs);
adamc@831	2234 }
adamc@831	2235
adamc@829	2236 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2237 uw_Basis_string r = strchr(s, ch);
adamc@829	2238 if (r == NULL)
adamc@829	2239 return NULL;
adamc@829	2240 else {
adamc@829	2241 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2242 *nr = r - s;
adamc@829	2243 return nr;
adamc@829	2244 }
adamc@829	2245 }
adamc@829	2246
adam@1390	2247 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2248 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2249 if (r == NULL)
adam@1390	2250 return NULL;
adam@1390	2251 else {
adam@1390	2252 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2253 *nr = r - haystack;
adam@1390	2254 return nr;
adam@1390	2255 }
adam@1390	2256 }
adam@1390	2257
adamc@311	2258 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2259 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2260 char *s;
adamc@180	2261
adamc@311	2262 uw_check_heap(ctx, len);
adamc@180	2263
adamc@666	2264 s = ctx->heap.front;
adamc@180	2265
adamc@180	2266 strcpy(s, s1);
adamc@180	2267 strcat(s, s2);
adamc@666	2268 ctx->heap.front += len;
adamc@180	2269
adamc@180	2270 return s;
adamc@180	2271 }
adamc@278	2272
adamc@829	2273 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2274 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2275
adamc@829	2276 if (start < 0)
adamc@829	2277 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2278 if (len < 0)
adamc@829	2279 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2280 if (start + len > full_len)
adamc@829	2281 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2282
adamc@829	2283 if (start + len == full_len)
adamc@829	2284 return &s[start];
adamc@829	2285 else {
adamc@829	2286 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2287 memcpy(r, s+start, len);
adamc@829	2288 r[len] = 0;
adamc@829	2289 return r;
adamc@829	2290 }
adamc@829	2291
adamc@829	2292 }
adamc@829	2293
adamc@1023	2294 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2295 char *r;
adamc@1023	2296
adamc@1023	2297 uw_check_heap(ctx, 2);
adamc@1023	2298 r = ctx->heap.front;
adamc@1023	2299 r[0] = ch;
adamc@1023	2300 r[1] = 0;
adamc@1023	2301
adamc@1023	2302 ctx->heap.front += 2;
adamc@1023	2303
adamc@1023	2304 return r;
adamc@1023	2305 }
adamc@1023	2306
adamc@737	2307 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2308 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2309 char *s;
adamc@278	2310
adamc@311	2311 uw_check_heap(ctx, len);
adamc@278	2312
adamc@666	2313 s = ctx->heap.front;
adamc@278	2314
adamc@278	2315 strcpy(s, s1);
adamc@666	2316 ctx->heap.front += len;
adamc@278	2317
adamc@278	2318 return s;
adamc@278	2319 }
adamc@280	2320
adam@1295	2321 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2322 if (ctx->error_message[0]) {
adam@1295	2323 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2324 ctx->error_message[0] = 0;
adam@1295	2325 return s;
adam@1295	2326 } else
adam@1295	2327 return NULL;
adam@1295	2328 }
adam@1295	2329
adamc@737	2330 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2331 if (s1)
adamc@737	2332 return uw_strdup(ctx, s1);
adamc@493	2333 else
adamc@493	2334 return NULL;
adamc@493	2335 }
adamc@493	2336
adamc@742	2337 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2338 char *r = uw_malloc(ctx, len);
adamc@742	2339 memcpy(r, p, len);
adamc@742	2340 return r;
adamc@742	2341 }
adamc@280	2342
adamc@879	2343 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2344
adamc@311	2345 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2346 int len;
adamc@281	2347 char *r;
adamc@281	2348
adamc@311	2349 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2350 r = ctx->heap.front;
adamc@879	2351 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2352 ctx->heap.front += len+1;
adamc@281	2353 return r;
adamc@281	2354 }
adamc@281	2355
adamc@467	2356 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2357 if (n == NULL)
adamc@467	2358 return "NULL";
adamc@467	2359 else
adamc@467	2360 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2361 }
adamc@467	2362
adamc@879	2363 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879	2364
adamc@311	2365 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2366 int len;
adamc@281	2367 char *r;
adamc@281	2368
adamc@311	2369 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2370 r = ctx->heap.front;
adamc@879	2371 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2372 ctx->heap.front += len+1;
adamc@281	2373 return r;
adamc@281	2374 }
adamc@281	2375
adamc@467	2376 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2377 if (n == NULL)
adamc@467	2378 return "NULL";
adamc@467	2379 else
adamc@467	2380 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2381 }
adamc@467	2382
adamc@879	2383 int uw_Estrings = 1;
adamc@879	2384 char *uw_sqlsuffixString = "::text";
adamc@1011	2385 char *uw_sqlsuffixChar = "::char";
adamc@281	2386
adamc@311	2387 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2388 char r, s2;
adamc@280	2389
adamc@879	2390 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2391
adamc@666	2392 r = s2 = ctx->heap.front;
adamc@879	2393 if (uw_Estrings)
adamc@879	2394 *s2++ = 'E';
adamc@280	2395 *s2++ = '\'';
adamc@280	2396
adamc@280	2397 for (; *s; s++) {
adamc@280	2398 char c = *s;
adamc@280	2399
adamc@280	2400 switch (c) {
adamc@280	2401 case '\'':
adamc@885	2402 if (uw_Estrings)
adamc@885	2403 strcpy(s2, "\\'");
adamc@885	2404 else
adamc@885	2405 strcpy(s2, "''");
adamc@280	2406 s2 += 2;
adamc@280	2407 break;
adamc@280	2408 case '\\':
adamc@885	2409 if (uw_Estrings) {
adamc@885	2410 strcpy(s2, "\\\\");
adamc@885	2411 s2 += 2;
adamc@885	2412 } else
adamc@885	2413 *s2++ = '\\';
adamc@280	2414 break;
adamc@280	2415 default:
adamc@1150	2416 if (isprint((int)c))
adamc@280	2417 *s2++ = c;
adamc@879	2418 else if (uw_Estrings) {
adamc@737	2419 sprintf(s2, "\\%03o", c);
adamc@280	2420 s2 += 4;
adamc@280	2421 }
adamc@879	2422 else
adamc@879	2423 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280	2424 }
adamc@280	2425 }
adamc@280	2426
adamc@879	2427 *s2++ = '\'';
adamc@879	2428 strcpy(s2, uw_sqlsuffixString);
adamc@879	2429 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2430 return r;
adamc@280	2431 }
adamc@281	2432
adamc@1011	2433 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2434 char r, s2;
adamc@1011	2435
adamc@1011	2436 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2437
adamc@1011	2438 r = s2 = ctx->heap.front;
adamc@1011	2439 if (uw_Estrings)
adamc@1011	2440 *s2++ = 'E';
adamc@1011	2441 *s2++ = '\'';
adamc@1011	2442
adamc@1011	2443 switch (c) {
adamc@1011	2444 case '\'':
adamc@1011	2445 if (uw_Estrings)
adamc@1011	2446 strcpy(s2, "\\'");
adamc@1011	2447 else
adamc@1011	2448 strcpy(s2, "''");
adamc@1011	2449 s2 += 2;
adamc@1011	2450 break;
adamc@1011	2451 case '\\':
adamc@1011	2452 if (uw_Estrings) {
adamc@1011	2453 strcpy(s2, "\\\\");
adamc@1011	2454 s2 += 2;
adamc@1011	2455 } else
adamc@1011	2456 *s2++ = '\\';
adamc@1011	2457 break;
adamc@1011	2458 default:
adamc@1150	2459 if (isprint((int)c))
adamc@1011	2460 *s2++ = c;
adamc@1011	2461 else if (uw_Estrings) {
adamc@1011	2462 sprintf(s2, "\\%03o", c);
adamc@1011	2463 s2 += 4;
adamc@1011	2464 }
adamc@1011	2465 else
adamc@1011	2466 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2467 }
adamc@1011	2468
adamc@1011	2469 *s2++ = '\'';
adamc@1011	2470 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2471 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2472 return r;
adamc@1011	2473 }
adamc@1011	2474
adamc@879	2475 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2476
adamc@737	2477 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2478 char r, s2;
adamc@737	2479 size_t i;
adamc@737	2480
adamc@879	2481 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737	2482
adamc@737	2483 r = s2 = ctx->heap.front;
adamc@879	2484 if (uw_Estrings)
adamc@879	2485 *s2++ = 'E';
adamc@737	2486 *s2++ = '\'';
adamc@737	2487
adamc@737	2488 for (i = 0; i < b.size; ++i) {
adamc@737	2489 char c = b.data[i];
adamc@737	2490
adamc@737	2491 switch (c) {
adamc@737	2492 case '\'':
adamc@885	2493 if (uw_Estrings)
adamc@885	2494 strcpy(s2, "\\'");
adamc@885	2495 else
adamc@885	2496 strcpy(s2, "''");
adamc@737	2497 s2 += 2;
adamc@737	2498 break;
adamc@737	2499 case '\\':
adamc@885	2500 if (uw_Estrings) {
adamc@885	2501 strcpy(s2, "\\\\\\\\");
adamc@885	2502 s2 += 4;
adamc@885	2503 } else
adamc@885	2504 *s2++ = '\\';
adamc@737	2505 break;
adamc@737	2506 default:
adamc@1150	2507 if (isprint((int)c))
adamc@737	2508 *s2++ = c;
adamc@879	2509 else if (uw_Estrings) {
adamc@737	2510 sprintf(s2, "\\\\%03o", c);
adamc@737	2511 s2 += 5;
adamc@737	2512 }
adamc@879	2513 else
adamc@879	2514 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737	2515 }
adamc@737	2516 }
adamc@737	2517
adamc@879	2518 *s2++ = '\'';
adamc@879	2519 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2520 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2521 return r;
adamc@737	2522 }
adamc@737	2523
adamc@682	2524 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2525 int len;
adamc@682	2526 char *r;
adamc@682	2527 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2528
adamc@682	2529 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2530 r = ctx->heap.front;
adamc@879	2531 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2532 ctx->heap.front += len+1;
adamc@682	2533 return r;
adamc@682	2534 }
adamc@682	2535
adamc@682	2536 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2537 int len;
adamc@682	2538 char *r;
adamc@682	2539 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2540
adamc@682	2541 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2542 r = ctx->heap.front;
adamc@682	2543 sprintf(r, "%lld%n", combo, &len);
adamc@682	2544 ctx->heap.front += len+1;
adamc@682	2545 return r;
adamc@682	2546 }
adamc@682	2547
adamc@879	2548 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2549
adamc@682	2550 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2551 int len;
adamc@682	2552 char *r;
adamc@682	2553
adamc@682	2554 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2555 r = ctx->heap.front;
adamc@879	2556 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2557 ctx->heap.front += len+1;
adamc@682	2558 return r;
adamc@682	2559 }
adamc@682	2560
adamc@682	2561 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2562 int len;
adamc@682	2563 char *r;
adamc@682	2564
adamc@682	2565 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2566 r = ctx->heap.front;
adamc@682	2567 sprintf(r, "%u%n", cli, &len);
adamc@682	2568 ctx->heap.front += len+1;
adamc@682	2569 return r;
adamc@682	2570 }
adamc@682	2571
adamc@467	2572 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2573 if (s == NULL)
adamc@467	2574 return "NULL";
adamc@467	2575 else
adamc@467	2576 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2577 }
adamc@467	2578
adamc@311	2579 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2580 if (b == uw_Basis_False)
adamc@281	2581 return "FALSE";
adamc@281	2582 else
adamc@281	2583 return "TRUE";
adamc@281	2584 }
adamc@282	2585
adamc@467	2586 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2587 if (b == NULL)
adamc@467	2588 return "NULL";
adamc@467	2589 else
adamc@467	2590 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2591 }
adamc@467	2592
adamc@439	2593 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2594 size_t len;
adamc@682	2595 char r, s;
adam@1392	2596 struct tm stm = {};
adam@1392	2597 stm.tm_isdst = -1;
adamc@682	2598
adam@1365	2599 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2600 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2601 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1367	2602 if (t.microseconds) {
adam@1367	2603 r = uw_malloc(ctx, len + 21);
adam@1367	2604 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1367	2605 } else {
adam@1367	2606 r = uw_malloc(ctx, len + 14);
adam@1367	2607 sprintf(r, "'%s'::timestamp", s);
adam@1367	2608 }
adamc@682	2609 return r;
adamc@682	2610 } else
adamc@682	2611 return "<Invalid time>";
adamc@682	2612 }
adamc@682	2613
adamc@682	2614 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2615 size_t len;
adamc@439	2616 char *r;
adam@1392	2617 struct tm stm = {};
adam@1392	2618 stm.tm_isdst = -1;
adamc@439	2619
adam@1365	2620 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2621 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2622 r = ctx->heap.front;
adamc@439	2623 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2624 ctx->heap.front += len+1;
adamc@439	2625 return r;
adamc@439	2626 } else
adamc@439	2627 return "<Invalid time>";
adamc@439	2628 }
adamc@439	2629
adam@1364	2630 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2631 size_t len;
adam@1364	2632 char *r;
adam@1392	2633 struct tm stm = {};
adam@1392	2634 stm.tm_isdst = -1;
adam@1364	2635
adam@1365	2636 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2637 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2638 r = ctx->heap.front;
adam@1365	2639 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2640 ctx->heap.front += len;
adam@1365	2641 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2642 ctx->heap.front += 8;
adam@1364	2643 return r;
adam@1364	2644 } else
adam@1364	2645 return "<Invalid time>";
adam@1364	2646 }
adam@1364	2647
adamc@467	2648 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2649 if (t == NULL)
adamc@467	2650 return "NULL";
adamc@467	2651 else
adamc@467	2652 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2653 }
adamc@467	2654
adamc@311	2655 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2656 static uw_Basis_int true = 1;
adamc@311	2657 static uw_Basis_int false = 0;
adamc@282	2658
adamc@311	2659 if (b == uw_Basis_False)
adamc@282	2660 return (char *)&false;
adamc@282	2661 else
adamc@282	2662 return (char *)&true;
adamc@282	2663 }
adamc@284	2664
adamc@311	2665 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2666 int len;
adamc@284	2667 char *r;
adamc@284	2668
adamc@311	2669 uw_check_heap(ctx, INTS_MAX);
adamc@666	2670 r = ctx->heap.front;
adamc@284	2671 sprintf(r, "%lld%n", n, &len);
adamc@666	2672 ctx->heap.front += len+1;
adamc@284	2673 return r;
adamc@284	2674 }
adamc@285	2675
adamc@311	2676 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2677 int len;
adamc@285	2678 char *r;
adamc@285	2679
adamc@311	2680 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2681 r = ctx->heap.front;
adamc@285	2682 sprintf(r, "%g%n", n, &len);
adamc@666	2683 ctx->heap.front += len+1;
adamc@285	2684 return r;
adamc@285	2685 }
adamc@285	2686
adamc@821	2687 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2688 char *r = uw_malloc(ctx, 2);
adamc@821	2689 r[0] = ch;
adamc@821	2690 r[1] = 0;
adamc@821	2691 return r;
adamc@821	2692 }
adamc@821	2693
adamc@311	2694 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2695 if (b == uw_Basis_False)
adamc@285	2696 return "False";
adamc@285	2697 else
adamc@285	2698 return "True";
adamc@285	2699 }
adamc@288	2700
adamc@436	2701 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436	2702 size_t len;
adamc@436	2703 char *r;
adam@1392	2704 struct tm stm = {};
adam@1392	2705 stm.tm_isdst = -1;
adamc@436	2706
adam@1365	2707 if (localtime_r(&t.seconds, &stm)) {
adamc@436	2708 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2709 r = ctx->heap.front;
adamc@436	2710 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2711 ctx->heap.front += len+1;
adamc@436	2712 return r;
adamc@436	2713 } else
adamc@436	2714 return "<Invalid time>";
adamc@436	2715 }
adamc@288	2716
adam@1359	2717 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2718 size_t len;
adam@1352	2719 char *r;
adam@1392	2720 struct tm stm = {};
adam@1392	2721 stm.tm_isdst = -1;
adam@1352	2722
adam@1365	2723 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2724 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2725 r = ctx->heap.front;
adam@1352	2726 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2727 ctx->heap.front += len+1;
adam@1352	2728 return r;
adam@1352	2729 } else
adam@1352	2730 return "<Invalid time>";
adam@1352	2731 }
adam@1352	2732
adamc@311	2733 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2734 char *endptr;
adamc@311	2735 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2736
adamc@288	2737 if (s != '\0' && endptr == '\0') {
adamc@311	2738 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2739 *r = n;
adamc@288	2740 return r;
adamc@288	2741 } else
adamc@288	2742 return NULL;
adamc@288	2743 }
adamc@289	2744
adamc@311	2745 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2746 char *endptr;
adamc@311	2747 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2748
adamc@289	2749 if (s != '\0' && endptr == '\0') {
adamc@311	2750 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2751 *r = n;
adamc@289	2752 return r;
adamc@289	2753 } else
adamc@289	2754 return NULL;
adamc@289	2755 }
adamc@289	2756
adamc@821	2757 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2758 if (s[0] == 0) {
adamc@821	2759 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2760 r[0] = 0;
adamc@821	2761 return r;
adamc@821	2762 } else if (s[1] != 0)
adamc@821	2763 return NULL;
adamc@821	2764 else {
adamc@821	2765 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2766 r[0] = s[0];
adamc@821	2767 return r;
adamc@821	2768 }
adamc@821	2769 }
adamc@821	2770
adamc@311	2771 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2772 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2773 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2774
adamc@289	2775 if (!strcasecmp (s, "True"))
adamc@289	2776 return &true;
adamc@289	2777 else if (!strcasecmp (s, "False"))
adamc@289	2778 return &false;
adamc@289	2779 else
adamc@289	2780 return NULL;
adamc@289	2781 }
adamc@292	2782
adamc@436	2783 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2784 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2785 struct tm stm = {};
adam@1392	2786 stm.tm_isdst = -1;
adamc@436	2787
adamc@439	2788 if (dot) {
adamc@439	2789 *dot = 0;
adamc@439	2790 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2791 *dot = '.';
adamc@439	2792 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2793 r->seconds = mktime(&stm);
adam@1365	2794 r->microseconds = 0;
adamc@439	2795 return r;
adamc@439	2796 }
adamc@439	2797 else {
adamc@439	2798 *dot = '.';
adamc@439	2799 return NULL;
adamc@439	2800 }
adamc@436	2801 }
adamc@439	2802 else {
adamc@439	2803 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2804 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2805 r->seconds = mktime(&stm);
adam@1365	2806 r->microseconds = 0;
adamc@439	2807 return r;
adamc@439	2808 }
adamc@439	2809 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2810 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2811 r->seconds = mktime(&stm);
adam@1365	2812 r->microseconds = 0;
adamc@439	2813 return r;
adamc@439	2814 }
adamc@439	2815 else
adamc@439	2816 return NULL;
adamc@439	2817 }
adamc@436	2818 }
adamc@436	2819
adam@1352	2820 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2821 char *end = strchr(s, 0);
adam@1374	2822 struct tm stm = {};
adam@1392	2823 stm.tm_isdst = -1;
adam@1352	2824
adam@1352	2825 if (strptime(s, fmt, &stm) == end) {
adam@1352	2826 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2827 r->seconds = mktime(&stm);
adam@1365	2828 r->microseconds = 0;
adam@1352	2829 return r;
adam@1352	2830 }
adam@1352	2831 else
adam@1352	2832 return NULL;
adam@1352	2833 }
adam@1352	2834
adamc@311	2835 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2836 char *endptr;
adamc@311	2837 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2838
adamc@292	2839 if (s != '\0' && endptr == '\0')
adamc@292	2840 return n;
adamc@292	2841 else
adam@1444	2842 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2843 }
adamc@293	2844
adamc@682	2845 #include <errno.h>
adamc@682	2846
adamc@678	2847 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2848 unsigned long long n;
adamc@682	2849
adamc@682	2850 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2851 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	2852 else {
adamc@682	2853 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2854 return ch;
adamc@682	2855 }
adamc@682	2856 }
adamc@682	2857
adamc@682	2858 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2859 char *endptr;
adamc@682	2860 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2861
adamc@678	2862 if (s != '\0' && endptr == '\0')
adamc@678	2863 return n;
adamc@678	2864 else
adam@1444	2865 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	2866 }
adamc@678	2867
adamc@311	2868 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2869 char *endptr;
adamc@311	2870 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2871
adamc@293	2872 if (s != '\0' && endptr == '\0')
adamc@293	2873 return n;
adamc@293	2874 else
adam@1444	2875 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2876 }
adamc@293	2877
adamc@821	2878 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2879 if (s[0] == 0)
adamc@821	2880 return 0;
adamc@821	2881 else if (s[1] != 0)
adam@1444	2882 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	2883 else
adamc@821	2884 return s[0];
adamc@821	2885 }
adamc@821	2886
adamc@311	2887 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2888 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2889 return uw_Basis_True;
adamc@296	2890 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2891 return uw_Basis_False;
adamc@293	2892 else
adam@1444	2893 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2894 }
adamc@436	2895
adam@1352	2896 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	2897 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	2898 struct tm stm = {};
adam@1392	2899 stm.tm_isdst = -1;
adam@1352	2900
adam@1352	2901 if (dot) {
adam@1352	2902 *dot = 0;
adam@1352	2903 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	2904 *dot = '.';
adam@1410	2905 char usec[] = "000000";
adam@1410	2906 int len = strlen(dot+1);
adam@1410	2907 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	2908 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	2909 return r;
adam@1352	2910 }
adam@1352	2911 else {
adam@1352	2912 *dot = '.';
adam@1444	2913 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	2914 }
adam@1352	2915 }
adam@1352	2916 else {
adam@1352	2917 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	2918 uw_Basis_time r = { mktime(&stm) };
adam@1365	2919 return r;
adam@1352	2920 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	2921 uw_Basis_time r = { mktime(&stm) };
adam@1365	2922 return r;
adam@1352	2923 } else
adam@1444	2924 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	2925 }
adam@1352	2926 }
adam@1352	2927
adamc@436	2928 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2929 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2930 struct tm stm = {};
adam@1392	2931 stm.tm_isdst = -1;
adamc@436	2932
adamc@438	2933 if (dot) {
adamc@438	2934 *dot = 0;
adamc@438	2935 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2936 *dot = '.';
adam@1365	2937 {
adam@1365	2938 uw_Basis_time r = { mktime(&stm) };
adam@1365	2939 return r;
adam@1365	2940 }
adamc@438	2941 }
adamc@438	2942 else {
adamc@438	2943 *dot = '.';
adam@1444	2944 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	2945 }
adamc@438	2946 }
adamc@438	2947 else {
adam@1365	2948 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	2949 uw_Basis_time r = { mktime(&stm) };
adam@1365	2950 return r;
adam@1365	2951 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	2952 uw_Basis_time r = { mktime(&stm) };
adam@1365	2953 return r;
adam@1365	2954 } else
adam@1444	2955 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	2956 }
adamc@436	2957 }
adamc@457	2958
adam@1352	2959 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	2960 char *end = strchr(s, 0);
adamc@939	2961 struct tm stm = {};
adam@1392	2962 stm.tm_isdst = -1;
adamc@939	2963
adam@1365	2964 if (strptime(s, fmt, &stm) == end) {
adam@1365	2965 uw_Basis_time r = { mktime(&stm) };
adam@1365	2966 return r;
adam@1365	2967 } else
adam@1444	2968 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	2969 }
adamc@939	2970
adamc@742	2971 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	2972 char *r = ctx->heap.front;
adamc@742	2973 uw_Basis_blob b = {len, r};
adamc@742	2974
adamc@742	2975 uw_check_heap(ctx, len);
adamc@742	2976
adamc@742	2977 while (*s) {
adamc@742	2978 if (s[0] == '\\') {
adamc@742	2979 if (s[1] == '\\') {
adamc@742	2980 *r++ = '\\';
adamc@742	2981 s += 2;
adamc@1153	2982 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adamc@742	2983 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	2984 s += 4;
adamc@742	2985 }
adamc@742	2986 else {
adamc@742	2987 *r++ = '\\';
adamc@742	2988 ++s;
adamc@742	2989 }
adamc@742	2990 } else {
adamc@742	2991 *r++ = s[0];
adamc@742	2992 ++s;
adamc@742	2993 }
adamc@742	2994 }
adamc@742	2995
adamc@742	2996 b.size = r - ctx->heap.front;
adamc@742	2997 ctx->heap.front = r;
adamc@742	2998 return b;
adamc@742	2999 }
adamc@742	3000
adam@1402	3001 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3002
adamc@463	3003 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3004 int len = strlen(c);
adamc@854	3005 char *p = ctx->outHeaders.start;
adamc@474	3006
adamc@1134	3007 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3008 char *p2;
adamc@474	3009 p += 13;
adamc@474	3010 p2 = strchr(p, '=');
adamc@474	3011
adamc@474	3012 if (p2) {
adamc@474	3013 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3014
adamc@474	3015 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3016 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3017 return NULL;
adamc@1052	3018 else {
adamc@1052	3019 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3020 memcpy(ret, p2+1, sz);
adamc@1052	3021 ret[sz] = 0;
adamc@1052	3022 return ret;
adamc@1052	3023 }
adamc@474	3024 }
adamc@474	3025 }
adamc@474	3026 }
adamc@463	3027
adamc@1134	3028 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3029 char *p2;
adamc@1051	3030
adamc@854	3031 while (1) {
adamc@1051	3032 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3033 if ((p2 = strchr(p, ';'))) {
adamc@1051	3034 size_t n = p2 - (p + len);
adamc@1051	3035 char *r = uw_malloc(ctx, n);
adamc@1051	3036 memcpy(r, p + 1 + len, n-1);
adamc@1051	3037 r[n-1] = 0;
adamc@1051	3038 return r;
adamc@1051	3039 } else
adamc@1051	3040 return p + 1 + len;
adamc@1134	3041 } else if ((p = strchr(p, ';')))
adamc@854	3042 p += 2;
adamc@463	3043 else
adamc@463	3044 return NULL;
adamc@463	3045 }
adamc@463	3046 }
adamc@792	3047
adamc@792	3048 return NULL;
adamc@457	3049 }
adamc@462	3050
adamc@1050	3051 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	3052 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3053 uw_write_header(ctx, c);
adamc@462	3054 uw_write_header(ctx, "=");
adamc@462	3055 uw_write_header(ctx, v);
adamc@466	3056 uw_write_header(ctx, "; path=");
adamc@466	3057 uw_write_header(ctx, prefix);
adamc@1050	3058 if (expires) {
adamc@1050	3059 char formatted[30];
adam@1392	3060 struct tm tm = {};
adam@1392	3061 tm.tm_isdst = -1;
adamc@1050	3062
adam@1365	3063 gmtime_r(&expires->seconds, &tm);
adamc@1050	3064
adamc@1050	3065 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3066
adamc@1050	3067 uw_write_header(ctx, "; expires=");
adamc@1050	3068 uw_write_header(ctx, formatted);
adamc@1050	3069 }
adamc@1050	3070 if (secure)
adamc@1050	3071 uw_write_header(ctx, "; secure");
adamc@462	3072 uw_write_header(ctx, "\r\n");
adamc@462	3073
adamc@462	3074 return uw_unit_v;
adamc@462	3075 }
adamc@667	3076
adamc@1050	3077 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3078 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3079 uw_write_header(ctx, c);
adamc@1050	3080 uw_write_header(ctx, "=; path=");
adamc@1050	3081 uw_write_header(ctx, prefix);
adamc@1052	3082 uw_write_header(ctx, "; " THE_PAST "\r\n");
adamc@1050	3083
adamc@1050	3084 return uw_unit_v;
adamc@1050	3085 }
adamc@1050	3086
adamc@1113	3087 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3088
adamc@682	3089 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3090 unsigned i;
adamc@682	3091 delta *d;
adamc@671	3092
adamc@682	3093 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3094 if (ctx->deltas[i].client == client)
adamc@682	3095 return &ctx->deltas[i];
adamc@671	3096
adamc@682	3097 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3098 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3099 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3100
adamc@682	3101 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3102 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3103 }
adamc@671	3104
adamc@682	3105 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3106 d->client = client;
adam@1369	3107 uw_buffer_reset(&d->msgs);
adamc@682	3108 return d;
adamc@671	3109 }
adamc@671	3110
adamc@668	3111 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3112 if (ctx->client == NULL)
adamc@682	3113 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3114
adamc@682	3115 return new_channel(ctx->client);
adamc@668	3116 }
adamc@668	3117
adamc@668	3118 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3119 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3120 size_t len;
adamc@682	3121 int preLen;
adamc@682	3122 char pre[INTS_MAX + 2];
adamc@668	3123
adamc@682	3124 len = strlen(msg);
adamc@682	3125
adamc@682	3126 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3127
adam@1369	3128 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3129 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3130 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3131
adamc@671	3132 return uw_unit_v;
adamc@668	3133 }
adamc@671	3134
adam@1327	3135 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3136 int i;
adamc@1131	3137 cleanup *cl;
adamc@1131	3138
adamc@1131	3139 if (ctx->client)
adamc@1131	3140 release_client(ctx->client);
adamc@1131	3141
adamc@1131	3142 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3143 cl->func(cl->arg);
adamc@1131	3144
adamc@1131	3145 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3146
adamc@1131	3147 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3148 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3149 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3150
adamc@1131	3151 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3152 if (ctx->transactionals[i].free)
adam@1327	3153 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3154
adamc@1144	3155 return ctx->app ? ctx->app->db_rollback(ctx) : 0;
adamc@1131	3156 }
adamc@1131	3157
adamc@671	3158 void uw_commit(uw_context ctx) {
adamc@1104	3159 int i;
adamc@1104	3160
adamc@1131	3161 if (uw_has_error(ctx)) {
adam@1327	3162 uw_rollback(ctx, 0);
adamc@1131	3163 return;
adamc@1131	3164 }
adamc@1131	3165
adamc@1104	3166 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3167 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3168 if (ctx->transactionals[i].commit) {
adamc@1083	3169 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3170 if (uw_has_error(ctx)) {
adam@1327	3171 uw_rollback(ctx, 0);
adamc@1131	3172 return;
adamc@1131	3173 }
adamc@1131	3174 }
adamc@771	3175
adamc@1104	3176 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3177 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3178 if (ctx->transactionals[i].commit) {
adamc@1083	3179 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3180 if (uw_has_error(ctx)) {
adam@1327	3181 uw_rollback(ctx, 0);
adamc@1131	3182 return;
adamc@1131	3183 }
adamc@1131	3184 }
adamc@1131	3185
adamc@1131	3186 if (ctx->app->db_commit(ctx)) {
adamc@1131	3187 uw_set_error_message(ctx, "Error running SQL COMMIT");
adamc@1131	3188 return;
adamc@1131	3189 }
adamc@682	3190
adamc@682	3191 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3192 delta *d = &ctx->deltas[i];
adamc@682	3193 client *c = find_client(d->client);
adamc@682	3194
adam@1551	3195 assert (c != NULL);
adam@1551	3196 assert(c->mode == USED);
adamc@682	3197
adam@1447	3198 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3199 }
adamc@682	3200
adamc@682	3201 if (ctx->client)
adamc@685	3202 release_client(ctx->client);
adamc@771	3203
adamc@1104	3204 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3205 if (ctx->transactionals[i].free)
adam@1327	3206 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3207
adam@1413	3208 if (*ctx->page.front)
adam@1413	3209 uw_writec(ctx, 0);
adam@1413	3210
adamc@916	3211 // Splice script data into appropriate part of page
adamc@1065	3212 if (ctx->returning_indirectly \|\| ctx->script_header[0] == 0) {
adamc@995	3213 char *start = strstr(ctx->page.start, "<sc>");
adamc@995	3214 if (start) {
adam@1369	3215 memmove(start, start + 4, uw_buffer_used(&ctx->page) - (start - ctx->page.start) - 4);
adamc@995	3216 ctx->page.front -= 4;
adamc@995	3217 }
adam@1369	3218 } else if (uw_buffer_used(&ctx->script) == 0) {
adamc@916	3219 size_t len = strlen(ctx->script_header);
adamc@916	3220 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	3221 if (start) {
adam@1369	3222 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) - 4 + len);
adamc@917	3223 start = strstr(ctx->page.start, "<sc>");
adam@1369	3224 memmove(start + len, start + 4, uw_buffer_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	3225 ctx->page.front += len - 4;
adamc@916	3226 memcpy(start, ctx->script_header, len);
adamc@916	3227 }
adamc@916	3228 } else {
adam@1369	3229 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adamc@916	3230 size_t lenP = lenH + 40 + len;
adamc@916	3231 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	3232 if (start) {
adam@1369	3233 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) - 4 + lenP);
adamc@917	3234 start = strstr(ctx->page.start, "<sc>");
adam@1369	3235 memmove(start + lenP, start + 4, uw_buffer_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	3236 ctx->page.front += lenP - 4;
adamc@916	3237 memcpy(start, ctx->script_header, lenH);
adamc@916	3238 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916	3239 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916	3240 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916	3241 }
adamc@916	3242 }
adamc@671	3243 }
adamc@671	3244
adamc@683	3245
adamc@1113	3246 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3247
adamc@771	3248 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3249 uw_callback_with_retry free) {
adamc@771	3250 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3251 if (ctx->used_transactionals+1 > uw_transactionals_max)
adamc@1113	3252 uw_error(ctx, FATAL, "Exceeded limit on number of transactionals");
adamc@1084	3253 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3254 ++ctx->n_transactionals;
adamc@771	3255 }
adamc@771	3256
adamc@771	3257 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3258 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3259 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3260 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	3261 }
adamc@771	3262
adamc@683	3263
adamc@683	3264 // "Garbage collection"
adamc@683	3265
adamc@1121	3266 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3267 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3268
adamc@1121	3269 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3270 int r = setjmp(ctx->jmp_buf);
adamc@683	3271
adamc@1121	3272 if (r == 0)
adamc@1121	3273 uw_do_expunge(ctx, cli, data);
adamc@1121	3274 else
adamc@1121	3275 ctx->app->db_rollback(ctx);
adamc@1121	3276
adamc@1121	3277 uw_post_expunge(ctx, data);
adamc@683	3278
adamc@683	3279 return r;
adamc@683	3280 }
adamc@683	3281
adamc@683	3282 void uw_prune_clients(uw_context ctx) {
adamc@683	3283 client c, next, *prev = NULL;
adamc@683	3284 time_t cutoff;
adamc@683	3285
adamc@1094	3286 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3287
adamc@683	3288 pthread_mutex_lock(&clients_mutex);
adamc@683	3289
adamc@683	3290 for (c = clients_used; c; c = next) {
adamc@683	3291 next = c->next;
adamc@683	3292 pthread_mutex_lock(&c->lock);
adamc@685	3293 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3294 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3295 if (prev)
adamc@683	3296 prev->next = next;
adamc@683	3297 else
adamc@683	3298 clients_used = next;
adamc@684	3299 uw_reset(ctx);
adamc@683	3300 while (fk == UNLIMITED_RETRY) {
adamc@1121	3301 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3302 if (fk == UNLIMITED_RETRY)
adamc@684	3303 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3304 }
adamc@684	3305 if (fk == SUCCESS)
adamc@684	3306 free_client(c);
adamc@1121	3307 else
adamc@856	3308 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3309 }
adamc@683	3310 else
adamc@683	3311 prev = c;
adamc@683	3312 pthread_mutex_unlock(&c->lock);
adamc@683	3313 }
adamc@683	3314
adamc@683	3315 pthread_mutex_unlock(&clients_mutex);
adamc@683	3316 }
adamc@687	3317
adamc@687	3318 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3319 int r = setjmp(ctx->jmp_buf);
adamc@687	3320
adamc@687	3321 if (r == 0) {
adamc@1094	3322 if (ctx->app->db_begin(ctx))
adamc@687	3323 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@1094	3324 ctx->app->initializer(ctx);
adamc@1094	3325 if (ctx->app->db_commit(ctx))
adamc@687	3326 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3327 }
adamc@687	3328
adamc@687	3329 return r;
adamc@687	3330 }
adamc@717	3331
adamc@1065	3332 static int url_bad(uw_Basis_string s) {
adamc@1065	3333 for (; *s; ++s)
adamc@1153	3334 if (!isgraph((int)*s))
adamc@1065	3335 return 1;
adamc@1065	3336
adamc@1065	3337 return 0;
adamc@1065	3338 }
adamc@1065	3339
adamc@717	3340 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3341 if (url_bad(s))
adamc@1065	3342 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3343 if (ctx->app->check_url(s))
adamc@770	3344 return s;
adamc@770	3345 else
adamc@770	3346 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3347 }
adamc@734	3348
adamc@770	3349 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3350 if (url_bad(s))
adamc@1065	3351 return NULL;
adamc@1094	3352 if (ctx->app->check_url(s))
adamc@770	3353 return s;
adamc@770	3354 else
adamc@770	3355 return NULL;
adamc@770	3356 }
adamc@770	3357
adam@1465	3358 static int mime_format(const char *s) {
adamc@770	3359 for (; *s; ++s)
adamc@1153	3360 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.')
adamc@770	3361 return 0;
adamc@770	3362
adamc@770	3363 return 1;
adamc@770	3364 }
adamc@770	3365
adamc@741	3366 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3367 if (!mime_format(s))
adamc@770	3368 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3369
adamc@1094	3370 if (ctx->app->check_mime(s))
adamc@770	3371 return s;
adamc@770	3372 else
adamc@770	3373 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3374 }
adamc@770	3375
adamc@770	3376 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3377 if (!mime_format(s))
adamc@770	3378 return NULL;
adamc@770	3379
adamc@1094	3380 if (ctx->app->check_mime(s))
adamc@770	3381 return s;
adamc@770	3382 else
adamc@770	3383 return NULL;
adamc@741	3384 }
adamc@741	3385
adam@1465	3386 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3387 if (!mime_format(s))
adam@1465	3388 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3389
adam@1465	3390 if (ctx->app->check_requestHeader(s))
adam@1465	3391 return s;
adam@1465	3392 else
adam@1465	3393 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3394 }
adam@1465	3395
adam@1465	3396 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3397 if (!mime_format(s))
adam@1465	3398 return NULL;
adam@1465	3399
adam@1465	3400 if (ctx->app->check_requestHeader(s))
adam@1465	3401 return s;
adam@1465	3402 else
adam@1465	3403 return NULL;
adam@1465	3404 }
adam@1465	3405
adam@1465	3406 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3407 if (!mime_format(s))
adam@1465	3408 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3409
adam@1465	3410 if (ctx->app->check_responseHeader(s))
adam@1465	3411 return s;
adam@1465	3412 else
adam@1465	3413 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3414 }
adam@1465	3415
adam@1465	3416 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3417 if (!mime_format(s))
adam@1465	3418 return NULL;
adam@1465	3419
adam@1465	3420 if (ctx->app->check_responseHeader(s))
adam@1465	3421 return s;
adam@1465	3422 else
adam@1465	3423 return NULL;
adam@1465	3424 }
adam@1465	3425
adam@1465	3426 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3427 return uw_Basis_requestHeader(ctx, name);
adam@1465	3428 }
adam@1465	3429
adam@1465	3430 static int mime_value_format(const char *s) {
adam@1465	3431 for (; *s; ++s)
adam@1465	3432 if (s == '\r' \|\| s == '\n')
adam@1465	3433 return 0;
adam@1465	3434
adam@1465	3435 return 1;
adam@1465	3436 }
adam@1465	3437
adam@1465	3438 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3439 if (!mime_value_format(value))
adam@1465	3440 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3441
adam@1465	3442 uw_write_header(ctx, name);
adam@1465	3443 uw_write_header(ctx, ": ");
adam@1465	3444 uw_write_header(ctx, value);
adam@1465	3445 uw_write_header(ctx, "\r\n");
adam@1465	3446
adam@1465	3447 return uw_unit_v;
adam@1465	3448 }
adam@1465	3449
adamc@734	3450 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3451 return s ? s : "";
adamc@734	3452 }
adamc@734	3453
adamc@734	3454 extern int uw_hash_blocksize;
adamc@734	3455
adamc@734	3456 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3457 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3458 int i;
adamc@734	3459
adamc@734	3460 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3461 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3462
adamc@734	3463 return r;
adamc@734	3464 }
adamc@734	3465
adam@1512	3466 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3467 * optimizations that would enable timing attacks. See:
adam@1512	3468 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3469 */
adam@1512	3470 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3471 int i, x = 0, len1 = strlen(s1);
adam@1512	3472
adam@1512	3473 if (len1 != strlen(s2)) return 0;
adam@1512	3474
adam@1512	3475 for (i = 0; i < len1; ++i) {
adam@1512	3476 __asm__ __volatile__ ("");
adam@1512	3477 x \|= s1[i] ^ s2[i];
adam@1512	3478 }
adam@1512	3479
adam@1512	3480 return x == 0;
adam@1512	3481 }
adam@1512	3482
adamc@734	3483 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@1094	3484 return ctx->app->cookie_sig(ctx);
adamc@734	3485 }
adamc@737	3486
adamc@737	3487 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3488 return f.name;
adamc@737	3489 }
adamc@737	3490
adamc@740	3491 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3492 return f.type;
adamc@740	3493 }
adamc@740	3494
adamc@745	3495 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3496 return b.size;
adamc@745	3497 }
adamc@745	3498
adamc@1119	3499 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3500 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3501
adamc@1119	3502 return b;
adamc@1119	3503 }
adamc@1119	3504
adamc@737	3505 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3506 return f.data;
adamc@737	3507 }
adamc@741	3508
adam@1347	3509 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3510 return pb.type;
adam@1347	3511 }
adam@1347	3512
adam@1347	3513 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3514 return pb.data;
adam@1347	3515 }
adam@1347	3516
adam@1471	3517 static char *old_headers(uw_context ctx) {
adam@1471	3518 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3519 return NULL;
adam@1471	3520 else {
adam@1471	3521 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3522
adam@1471	3523 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3524 return NULL;
adam@1471	3525 else {
adam@1471	3526 s = strchr(s+15, '\n');
adam@1471	3527 if (s == NULL)
adam@1471	3528 return NULL;
adam@1471	3529 else
adam@1471	3530 return uw_strdup(ctx, s+1);
adam@1471	3531 }
adam@1471	3532 }
adam@1471	3533 }
adam@1471	3534
adamc@741	3535 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3536 cleanup *cl;
adamc@741	3537 int len;
adam@1471	3538 char *oldh;
adamc@741	3539
adam@1451	3540 if (!ctx->allowed_to_return_indirectly)
adam@1451	3541 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3542
adamc@1065	3543 ctx->returning_indirectly = 1;
adam@1471	3544 oldh = old_headers(ctx);
adam@1369	3545 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3546 uw_buffer_reset(&ctx->page);
adamc@741	3547
adamc@856	3548 uw_write_header(ctx, on_success);
adamc@856	3549 uw_write_header(ctx, "Content-Type: ");
adamc@741	3550 uw_write_header(ctx, mimeType);
adamc@741	3551 uw_write_header(ctx, "\r\nContent-Length: ");
adam@1369	3552 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3553 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3554 ctx->outHeaders.front += len;
adamc@1066	3555 uw_write_header(ctx, "\r\n");
adam@1471	3556 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3557
adam@1369	3558 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3559
adamc@741	3560 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3561 cl->func(cl->arg);
adamc@741	3562
adamc@741	3563 ctx->cleanup_front = ctx->cleanup;
adamc@741	3564
adamc@1065	3565 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3566 }
adamc@1065	3567
adamc@1065	3568 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3569 cleanup *cl;
adamc@1066	3570 char *s;
adam@1471	3571 char *oldh;
adamc@1065	3572
adam@1451	3573 if (!ctx->allowed_to_return_indirectly)
adam@1451	3574 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3575
adamc@1065	3576 ctx->returning_indirectly = 1;
adam@1471	3577 oldh = old_headers(ctx);
adam@1369	3578 uw_buffer_reset(&ctx->page);
adam@1369	3579 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3580 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3581 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3582 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3583
adam@1409	3584 if (on_success[0])
adam@1409	3585 uw_write_header(ctx, on_redirect);
adam@1409	3586 else
adam@1409	3587 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3588 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3589 if (s) {
adamc@1066	3590 char *s2;
adam@1409	3591 if (s[0] == '\n') ++s;
adam@1409	3592 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3593 *s2 = 0;
adamc@1066	3594 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3595 uw_write_header(ctx, s);
adamc@1066	3596 uw_write_header(ctx, "\n");
adamc@1066	3597 }
adamc@1066	3598 }
adamc@1066	3599 }
adamc@1066	3600
adamc@1065	3601 uw_write_header(ctx, "Location: ");
adamc@1065	3602 uw_write_header(ctx, url);
adamc@1065	3603 uw_write_header(ctx, "\r\n\r\n");
adam@1471	3604 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	3605
adamc@1065	3606 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3607 cl->func(cl->arg);
adamc@1065	3608
adamc@1065	3609 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3610
adamc@1065	3611 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3612 }
adamc@874	3613
adamc@874	3614 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	3615 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	3616
adamc@874	3617 for (; *s; ++s) {
adamc@874	3618 if (s[0] == '\'') {
adamc@874	3619 *r++ = '\'';
adamc@874	3620 for (++s; *s; ++s) {
adamc@874	3621 if (s[0] == '\'') {
adamc@874	3622 *r++ = '\'';
adamc@874	3623 break;
adamc@874	3624 } else if (s[0] == '\\') {
adam@1467	3625 *r++ = '\\';
adam@1467	3626 *r++ = s[1];
adam@1467	3627 ++s;
adamc@874	3628 } else
adamc@874	3629 *r++ = s[0];
adamc@874	3630 }
adamc@874	3631 if (*s == 0) break;
adam@1467	3632 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	3633 s += 3;
adamc@874	3634 else
adamc@874	3635 *r++ = s[0];
adamc@874	3636 }
adamc@874	3637
adam@1467	3638 *r = 0;
adam@1467	3639 return ret;
adamc@874	3640 }
adamc@874	3641
adamc@922	3642 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3643 va_list ap;
adamc@922	3644 size_t len = 1;
adamc@922	3645 char s, r, *s2;
adamc@922	3646
adamc@922	3647 va_start(ap, ctx);
adamc@922	3648 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3649 len += strlen(s);
adamc@922	3650 va_end(ap);
adamc@922	3651
adamc@922	3652 r = uw_malloc(ctx, len);
adamc@922	3653 va_start(ap, ctx);
adamc@922	3654 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3655 while (*s)
adamc@922	3656 s2++ = s++;
adamc@922	3657 va_end(ap);
adamc@922	3658 *s2 = 0;
adamc@922	3659
adamc@922	3660 return r;
adamc@922	3661 }
adamc@1006	3662
adam@1365	3663 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	3664
adamc@1006	3665 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	3666 uw_Basis_time r = { time(NULL) };
adam@1365	3667 return r;
adamc@1006	3668 }
adamc@1061	3669
adam@1369	3670 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	3671 tm.seconds += n;
adam@1365	3672 return tm;
adamc@1138	3673 }
adamc@1138	3674
adam@1514	3675 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	3676 return difftime(tm2.seconds, tm1.seconds);
adam@1514	3677 }
adam@1514	3678
adam@1514	3679 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	3680 return tm.seconds;
adam@1514	3681 }
adam@1514	3682
adamc@1061	3683 void uw_get_global(uw_context ctx, char name) {
adamc@1061	3684 int i;
adamc@1061	3685
adamc@1061	3686 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3687 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	3688 return ctx->globals[i].data;
adamc@1061	3689
adamc@1061	3690 return NULL;
adamc@1061	3691 }
adamc@1061	3692
adamc@1113	3693 size_t uw_globals_max = SIZE_MAX;
adamc@1113	3694
adamc@1061	3695 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	3696 int i;
adamc@1061	3697
adamc@1061	3698 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3699 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	3700 if (ctx->globals[i].free)
adamc@1061	3701 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	3702 ctx->globals[i].data = data;
adamc@1061	3703 ctx->globals[i].free = free;
adamc@1061	3704 return;
adamc@1061	3705 }
adamc@1089	3706
adamc@1113	3707 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	3708 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	3709
adamc@1061	3710 ++ctx->n_globals;
adamc@1061	3711 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	3712 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	3713 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	3714 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	3715 }
adamc@1061	3716
adamc@1061	3717 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	3718 return !!isalnum((int)c);
adamc@1061	3719 }
adamc@1061	3720
adamc@1061	3721 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	3722 return !!isalpha((int)c);
adamc@1061	3723 }
adamc@1061	3724
adamc@1061	3725 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	3726 return !!isblank((int)c);
adamc@1061	3727 }
adamc@1061	3728
adamc@1061	3729 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	3730 return !!iscntrl((int)c);
adamc@1061	3731 }
adamc@1061	3732
adamc@1061	3733 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3734 return !!isdigit((int)c);
adamc@1061	3735 }
adamc@1061	3736
adamc@1061	3737 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	3738 return !!isgraph((int)c);
adamc@1061	3739 }
adamc@1061	3740
adamc@1061	3741 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3742 return !!islower((int)c);
adamc@1061	3743 }
adamc@1061	3744
adamc@1061	3745 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	3746 return !!isprint((int)c);
adamc@1061	3747 }
adamc@1061	3748
adamc@1061	3749 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	3750 return !!ispunct((int)c);
adamc@1061	3751 }
adamc@1061	3752
adamc@1061	3753 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	3754 return !!isspace((int)c);
adamc@1061	3755 }
adamc@1063	3756
adamc@1061	3757 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3758 return !!isupper((int)c);
adamc@1061	3759 }
adamc@1061	3760
adamc@1061	3761 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3762 return !!isxdigit((int)c);
adamc@1061	3763 }
adamc@1061	3764
adamc@1061	3765 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3766 return tolower((int)c);
adamc@1061	3767 }
adamc@1061	3768
adamc@1061	3769 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3770 return toupper((int)c);
adamc@1061	3771 }
adamc@1066	3772
adamc@1128	3773 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	3774 return (unsigned char)c;
adamc@1128	3775 }
adamc@1128	3776
adamc@1128	3777 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	3778 return n;
adamc@1128	3779 }
adamc@1128	3780
adamc@1066	3781 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	3782 return ctx->current_url;
adamc@1066	3783 }
adamc@1066	3784
adamc@1066	3785 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	3786 ctx->current_url = s;
adamc@1066	3787 }
adamc@1114	3788
adamc@1114	3789 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	3790 ctx->deadline = n;
adamc@1114	3791 }
adamc@1114	3792
adamc@1114	3793 void uw_check_deadline(uw_context ctx) {
adamc@1114	3794 if (uw_time > ctx->deadline)
adamc@1114	3795 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	3796 }
adamc@1115	3797
adamc@1115	3798 size_t uw_database_max = SIZE_MAX;
adamc@1120	3799
adam@1389	3800 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@1389	3801 fprintf(stderr, "%s\n", s);
adam@1389	3802 return 0;
adam@1389	3803 }
adam@1389	3804
adamc@1120	3805 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
adam@1334	3806 if (ctx->log_debug)
adam@1334	3807 ctx->log_debug(ctx->logger_data, "%s\n", s);
adam@1334	3808 else
adam@1334	3809 fprintf(stderr, "%s\n", s);
adamc@1120	3810 return uw_unit_v;
adamc@1120	3811 }
adamc@1250	3812
adamc@1250	3813 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@1486	3814 uw_Basis_int ret;
adam@1486	3815 int r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@1486	3816
adam@1486	3817 if (r)
adam@1486	3818 return abs(ret);
adam@1486	3819 else
adam@1486	3820 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	3821 }
adam@1347	3822
adam@1347	3823 void uw_noPostBody(uw_context ctx) {
adam@1347	3824 ctx->hasPostBody = 0;
adam@1347	3825 }
adam@1347	3826
adam@1347	3827 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3828 ctx->hasPostBody = 1;
adam@1347	3829 ctx->postBody = pb;
adam@1347	3830 }
adam@1347	3831
adam@1347	3832 int uw_hasPostBody(uw_context ctx) {
adam@1347	3833 return ctx->hasPostBody;
adam@1347	3834 }
adam@1347	3835
adam@1386	3836 void uw_isPost(uw_context ctx) {
adam@1386	3837 ctx->isPost = 1;
adam@1386	3838 }
adam@1386	3839
adam@1386	3840 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	3841 return ctx->isPost;
adam@1386	3842 }
adam@1386	3843
adam@1485	3844 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	3845 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	3846 }
adam@1485	3847
adam@1370	3848 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	3849 ctx->queryString = s;
adam@1370	3850 }
adam@1370	3851
adam@1370	3852 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	3853 return ctx->queryString;
adam@1370	3854 }
adam@1370	3855
adam@1347	3856 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	3857 if (ctx->hasPostBody)
adam@1347	3858 return ctx->postBody;
adam@1347	3859 else
adam@1347	3860 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	3861 }
adam@1349	3862
adam@1349	3863 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	3864 int r = setjmp(ctx->jmp_buf);
adam@1349	3865
adam@1349	3866 if (r == 0) {
adam@1418	3867 if (ctx->app->db_begin(ctx))
adam@1418	3868 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1418	3869
adam@1349	3870 callback(ctx);
adam@1349	3871 }
adam@1349	3872
adam@1349	3873 return r;
adam@1349	3874 }
adam@1360	3875
adam@1360	3876 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	3877 char buf[14];
adam@1397	3878 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	3879 }
adam@1365	3880
adam@1365	3881 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	3882 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	3883 }
adam@1365	3884
adam@1365	3885 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	3886 return !!(t1.seconds < t2.seconds \|\| t1.microseconds < t2.microseconds);
adam@1365	3887 }
adam@1365	3888
adam@1365	3889 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	3890 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	3891 }
adam@1365	3892
adam@1372	3893 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	3894 struct tm stm = {};
adam@1375	3895 char *end = strchr(s, 0);
adam@1449	3896 stm.tm_isdst = -1;
adam@1375	3897
adam@1375	3898 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end) {
adam@1373	3899 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	3900
kkallio@1448	3901 r->seconds = timegm(&stm);
adam@1373	3902 r->microseconds = 0;
adam@1373	3903
adam@1373	3904 return r;
adam@1374	3905 }
adam@1374	3906 else
adam@1373	3907 return NULL;
adam@1372	3908 }
adam@1407	3909
adam@1407	3910 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	3911
adam@1407	3912 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	3913 int r = setjmp(ctx->jmp_buf);
adam@1407	3914
adam@1407	3915 if (ctx->app->on_error) {
adam@1407	3916 if (r == 0) {
adam@1407	3917 if (ctx->app->db_begin(ctx))
adam@1407	3918 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1407	3919
adam@1409	3920 uw_buffer_reset(&ctx->outHeaders);
adam@1409	3921 if (on_success[0])
adam@1409	3922 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	3923 else
adam@1409	3924 uw_write_header(ctx, "Status: ");
adam@1409	3925 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1407	3926 uw_write_header(ctx, "Content-type: text/html\r\n\r\n");
adam@1407	3927 uw_write(ctx, begin_xhtml);
adam@1407	3928 ctx->app->on_error(ctx, msg);
adam@1407	3929 uw_write(ctx, "</html>");
adam@1407	3930 }
adam@1407	3931
adam@1407	3932 return r;
adam@1407	3933 } else
adam@1407	3934 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	3935 }
adam@1451	3936
adam@1451	3937 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	3938 ctx->allowed_to_return_indirectly = 1;
adam@1451	3939 }
adam@1483	3940
adam@1483	3941 void uw_cutErrorLocation(char *s) {
adam@1483	3942 char *s2;
adam@1483	3943
adam@1483	3944 s2 = strstr(s, ": ");
adam@1483	3945 if (s2 == NULL \|\| strcspn(s, "<&") < s2 - s)
adam@1483	3946 return;
adam@1483	3947
adam@1483	3948 memmove(s, s2+2, strlen(s2+2)+1);
adam@1483	3949 }

Mercurial > urweb

annotate src/c/urweb.c @ 1552:c3b5cf5c2f98