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

annotate src/c/urweb.c @ 1671:a54d223c3a7f

Properly handle case where an RPC changes signed cookie state

author	Adam Chlipala <adam@chlipala.net>
date	Tue, 10 Jan 2012 15:34:18 -0500
parents	f9ffe8497742
children	ea131de361d9

rev	line source
adamc@1268	1 #include "config.h"
adamc@1268	2
adamc@117	3 #include <stdlib.h>
adamc@102	4 #include <stdio.h>
adamc@117	5 #include <string.h>
adamc@457	6 #include <strings.h>
adamc@106	7 #include <ctype.h>
adamc@167	8 #include <setjmp.h>
adamc@167	9 #include <stdarg.h>
adamc@682	10 #include <assert.h>
adamc@741	11 #include <ctype.h>
adamc@1114	12 #include <limits.h>
adamc@1113	13 #include <stdint.h>
adamc@1094	14 #include <sys/types.h>
adamc@1094	15 #include <sys/socket.h>
adam@1397	16 #include <openssl/des.h>
adam@1486	17 #include <openssl/rand.h>
adam@1374	18 #include <time.h>
adam@1571	19 #include <math.h>
adamc@102	20
adamc@667	21 #include <pthread.h>
adamc@667	22
adamc@102	23 #include "types.h"
adamc@102	24
adam@1431	25 uw_unit uw_unit_v = 0;
adamc@102	26
adamc@667	27
adamc@667	28 // Socket extras
adamc@667	29
adamc@863	30 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667	31 while (len > 0) {
adamc@856	32 ssize_t n = send(sock, buf, len, 0);
adamc@856	33
adamc@856	34 if (n < 0)
adamc@856	35 return n;
adamc@856	36
adamc@856	37 buf += n;
adamc@856	38 len -= n;
adamc@856	39 }
adamc@856	40
adamc@856	41 return 0;
adamc@856	42 }
adamc@856	43
adamc@856	44 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856	45 while (len > 0) {
adamc@856	46 ssize_t n = write(fd, buf, len);
adamc@667	47
adamc@667	48 if (n < 0)
adamc@667	49 return n;
adamc@667	50
adamc@667	51 buf += n;
adamc@667	52 len -= n;
adamc@667	53 }
adamc@667	54
adamc@667	55 return 0;
adamc@667	56 }
adamc@667	57
adamc@667	58
adamc@667	59 // Buffers
adamc@667	60
adam@1369	61 void uw_buffer_init(size_t max, uw_buffer *b, size_t s) {
adamc@1113	62 b->max = max;
adamc@667	63 b->front = b->start = malloc(s);
adamc@667	64 b->back = b->front + s;
adamc@667	65 }
adamc@667	66
adam@1369	67 void uw_buffer_free(uw_buffer *b) {
adamc@667	68 free(b->start);
adamc@667	69 }
adamc@667	70
adam@1369	71 void uw_buffer_reset(uw_buffer *b) {
adamc@667	72 b->front = b->start;
adamc@667	73 }
adamc@667	74
adam@1369	75 int uw_buffer_check(uw_buffer *b, size_t extra) {
adamc@667	76 if (b->back - b->front < extra) {
adamc@667	77 size_t desired = b->front - b->start + extra, next;
adamc@667	78 char *new_heap;
adamc@667	79
adamc@667	80 next = b->back - b->start;
adamc@667	81 if (next == 0)
adamc@667	82 next = 1;
adamc@667	83 for (; next < desired; next *= 2);
adamc@667	84
adamc@1134	85 if (next > b->max) {
adamc@1113	86 if (desired <= b->max)
adamc@1113	87 next = desired;
adamc@1113	88 else
adamc@1113	89 return 1;
adamc@1134	90 }
adamc@1113	91
adamc@667	92 new_heap = realloc(b->start, next);
adamc@667	93 b->front = new_heap + (b->front - b->start);
adamc@667	94 b->back = new_heap + next;
adamc@667	95 b->start = new_heap;
adamc@667	96 }
adamc@1113	97
adamc@1113	98 return 0;
adamc@1113	99 }
adamc@1113	100
adamc@1113	101 __attribute__((noreturn)) void uw_error(uw_context, failure_kind, const char *, ...);
adamc@1113	102
adam@1369	103 static void ctx_uw_buffer_check(uw_context ctx, const char kind, uw_buffer b, size_t extra) {
adam@1369	104 if (uw_buffer_check(b, extra))
adamc@1113	105 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@667	106 }
adamc@667	107
adam@1369	108 size_t uw_buffer_used(uw_buffer *b) {
adamc@667	109 return b->front - b->start;
adamc@667	110 }
adamc@667	111
adam@1369	112 size_t uw_buffer_avail(uw_buffer *b) {
adamc@667	113 return b->back - b->start;
adamc@667	114 }
adamc@667	115
adam@1369	116 int uw_buffer_append(uw_buffer b, const char s, size_t len) {
adam@1369	117 if (uw_buffer_check(b, len+1))
adamc@1113	118 return 1;
adamc@1113	119
adamc@1113	120 memcpy(b->front, s, len);
adamc@1113	121 b->front += len;
adamc@1113	122 *b->front = 0;
adamc@1113	123
adamc@1113	124 return 0;
adamc@1113	125 }
adamc@1113	126
adam@1369	127 static void ctx_uw_buffer_append(uw_context ctx, const char kind, uw_buffer b, const char *s, size_t len) {
adam@1369	128 ctx_uw_buffer_check(ctx, kind, b, len+1);
adamc@1113	129
adamc@668	130 memcpy(b->front, s, len);
adamc@668	131 b->front += len;
adamc@672	132 *b->front = 0;
adamc@668	133 }
adamc@667	134
adamc@668	135
adamc@672	136 // Persistent state types
adamc@667	137
adamc@667	138 typedef enum { UNUSED, USED } usage;
adamc@667	139
adamc@667	140 typedef struct client {
adamc@682	141 unsigned id;
adamc@667	142 usage mode;
adamc@682	143 int pass;
adamc@682	144 struct client *next;
adamc@689	145 pthread_mutex_t lock, pull_lock;
adam@1369	146 uw_buffer msgs;
adamc@682	147 int sock;
adamc@863	148 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	149 int (*close)(int fd);
adamc@682	150 time_t last_contact;
adamc@682	151 unsigned n_channels;
adamc@685	152 unsigned refcount;
adamc@1121	153 void *data;
adamc@667	154 } client;
adamc@667	155
adamc@672	156
adamc@672	157 // Persistent client state
adamc@672	158
adamc@682	159 static client *clients, clients_free, *clients_used;
adamc@682	160 static unsigned n_clients;
adamc@667	161
adamc@667	162 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@667	163
adamc@1113	164 size_t uw_messages_max = SIZE_MAX;
adamc@1113	165 size_t uw_clients_max = SIZE_MAX;
adamc@1113	166
adamc@1121	167 void *uw_init_client_data();
adamc@1121	168 void uw_free_client_data(void *);
adamc@1121	169 void uw_copy_client_data(void dst, void src);
adamc@1121	170
adamc@682	171 static client *new_client() {
adamc@667	172 client *c;
adamc@667	173
adamc@667	174 pthread_mutex_lock(&clients_mutex);
adamc@667	175
adamc@667	176 if (clients_free) {
adamc@667	177 c = clients_free;
adamc@682	178 clients_free = clients_free->next;
adamc@667	179 }
adamc@1113	180 else if (n_clients >= uw_clients_max)
adamc@1113	181 return NULL;
adamc@667	182 else {
adamc@667	183 ++n_clients;
adamc@667	184 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	185 c = malloc(sizeof(client));
adamc@667	186 c->id = n_clients-1;
adamc@682	187 pthread_mutex_init(&c->lock, NULL);
adamc@689	188 pthread_mutex_init(&c->pull_lock, NULL);
adam@1369	189 uw_buffer_init(uw_messages_max, &c->msgs, 0);
adamc@667	190 clients[n_clients-1] = c;
adamc@667	191 }
adamc@667	192
adamc@682	193 pthread_mutex_lock(&c->lock);
adamc@667	194 c->mode = USED;
adamc@682	195 c->pass = rand();
adamc@682	196 c->sock = -1;
adamc@682	197 c->last_contact = time(NULL);
adam@1369	198 uw_buffer_reset(&c->msgs);
adamc@682	199 c->n_channels = 0;
adamc@685	200 c->refcount = 0;
adamc@1121	201 c->data = uw_init_client_data();
adamc@682	202 pthread_mutex_unlock(&c->lock);
adamc@682	203
adamc@682	204 c->next = clients_used;
adamc@682	205 clients_used = c;
adamc@667	206
adamc@667	207 pthread_mutex_unlock(&clients_mutex);
adamc@667	208
adamc@667	209 return c;
adamc@667	210 }
adamc@667	211
adamc@685	212 static void use_client(client *c) {
adamc@685	213 pthread_mutex_lock(&c->lock);
adamc@685	214 ++c->refcount;
adamc@685	215 pthread_mutex_unlock(&c->lock);
adamc@689	216 pthread_mutex_lock(&c->pull_lock);
adamc@685	217 }
adamc@685	218
adamc@685	219 static void release_client(client *c) {
adamc@689	220 pthread_mutex_unlock(&c->pull_lock);
adamc@685	221 pthread_mutex_lock(&c->lock);
adamc@685	222 --c->refcount;
adamc@685	223 pthread_mutex_unlock(&c->lock);
adamc@685	224 }
adamc@685	225
adamc@856	226 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adamc@667	227
adamc@682	228 static client *find_client(unsigned id) {
adamc@667	229 client *c;
adamc@667	230
adamc@667	231 pthread_mutex_lock(&clients_mutex);
adamc@667	232
adamc@667	233 if (id >= n_clients) {
adamc@667	234 pthread_mutex_unlock(&clients_mutex);
adamc@668	235 return NULL;
adamc@667	236 }
adamc@667	237
adamc@667	238 c = clients[id];
adamc@667	239
adamc@668	240 pthread_mutex_unlock(&clients_mutex);
adamc@668	241 return c;
adamc@668	242 }
adamc@668	243
adamc@856	244 static char *on_success = "HTTP/1.1 200 OK\r\n";
adam@1409	245 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	246
adamc@856	247 void uw_set_on_success(char *s) {
adamc@856	248 on_success = s;
adamc@856	249 }
adamc@856	250
adam@1552	251 static void chastise(int (send)(int sockfd, const void buf, ssize_t len), int sock) {
adam@1552	252 send(sock, on_success, strlen(on_success));
adam@1552	253 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1552	254 send(sock, "R", 1);
adam@1552	255 close(sock);
adam@1552	256 }
adam@1552	257
adamc@863	258 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	259 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	260 int (*close)(int fd),
adamc@864	261 void *logger_data, uw_logger log_error) {
adamc@682	262 client *c = find_client(id);
adamc@668	263
adamc@668	264 if (c == NULL) {
adam@1552	265 chastise(send, sock);
adamc@864	266 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	267 return;
adamc@667	268 }
adamc@667	269
adamc@682	270 pthread_mutex_lock(&c->lock);
adamc@671	271
adamc@682	272 if (c->mode != USED) {
adamc@682	273 pthread_mutex_unlock(&c->lock);
adam@1552	274 chastise(send, sock);
adamc@864	275 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	276 return;
adamc@667	277 }
adamc@667	278
adamc@682	279 if (pass != c->pass) {
adamc@682	280 pthread_mutex_unlock(&c->lock);
adam@1552	281 chastise(send, sock);
adamc@864	282 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	283 return;
adamc@667	284 }
adamc@667	285
adamc@682	286 if (c->sock != -1) {
adamc@863	287 c->close(c->sock);
adamc@682	288 c->sock = -1;
adamc@682	289 }
adamc@667	290
adamc@682	291 c->last_contact = time(NULL);
adamc@682	292
adam@1369	293 if (uw_buffer_used(&c->msgs) > 0) {
adamc@863	294 send(sock, on_success, strlen(on_success));
adamc@863	295 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1369	296 send(sock, c->msgs.start, uw_buffer_used(&c->msgs));
adam@1369	297 uw_buffer_reset(&c->msgs);
adamc@667	298 close(sock);
adamc@667	299 }
adamc@863	300 else {
adamc@682	301 c->sock = sock;
adamc@863	302 c->send = send;
adamc@863	303 c->close = close;
adamc@863	304 }
adamc@667	305
adamc@682	306 pthread_mutex_unlock(&c->lock);
adamc@667	307 }
adamc@667	308
adamc@682	309 static void free_client(client *c) {
adamc@682	310 c->mode = UNUSED;
adamc@682	311 c->pass = -1;
adamc@667	312
adamc@682	313 c->next = clients_free;
adamc@682	314 clients_free = c;
adamc@667	315 }
adamc@667	316
adamc@682	317 static uw_Basis_channel new_channel(client *c) {
adamc@682	318 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	319 return ch;
adamc@668	320 }
adamc@668	321
adam@1447	322 static void client_send(client c, uw_buffer msg, const char *script, int script_len) {
adamc@685	323 pthread_mutex_lock(&c->lock);
adamc@671	324
adamc@682	325 if (c->sock != -1) {
adamc@863	326 c->send(c->sock, on_success, strlen(on_success));
adamc@863	327 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1447	328 if (script_len > 0) {
adam@1447	329 c->send(c->sock, "E\n", 2);
adam@1447	330 c->send(c->sock, script, script_len);
adam@1447	331 c->send(c->sock, "\n", 1);
adam@1447	332 }
adam@1369	333 c->send(c->sock, msg->start, uw_buffer_used(msg));
adamc@863	334 c->close(c->sock);
adamc@682	335 c->sock = -1;
adam@1665	336 } else if (uw_buffer_append(&c->msgs, msg->start, uw_buffer_used(msg)))
adamc@1113	337 fprintf(stderr, "Client message buffer size exceeded");
adamc@671	338
adamc@685	339 pthread_mutex_unlock(&c->lock);
adamc@668	340 }
adamc@668	341
adamc@668	342
adamc@668	343 // Global entry points
adamc@668	344
adamc@1164	345 extern void uw_global_custom();
adamc@1104	346 extern void uw_init_crypto();
adamc@1104	347
adamc@668	348 void uw_global_init() {
adamc@668	349 srand(time(NULL) ^ getpid());
adamc@668	350
adamc@668	351 clients = malloc(0);
adamc@1104	352
adamc@1164	353 uw_global_custom();
adamc@1104	354 uw_init_crypto();
adamc@1094	355 }
adamc@1094	356
adamc@1094	357 void uw_app_init(uw_app *app) {
adamc@1094	358 app->client_init();
adamc@668	359 }
adamc@668	360
adam@1332	361 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114	362
adamc@668	363
adamc@667	364 // Single-request state
adamc@667	365
adamc@323	366 typedef struct regions {
adamc@323	367 struct regions *next;
adamc@323	368 } regions;
adamc@323	369
adamc@425	370 typedef struct {
adamc@425	371 void (func)(void);
adamc@425	372 void *arg;
adamc@425	373 } cleanup;
adamc@425	374
adamc@671	375 typedef struct {
adamc@682	376 unsigned client;
adam@1369	377 uw_buffer msgs;
adamc@682	378 } delta;
adamc@671	379
adamc@737	380 typedef enum {
adamc@759	381 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	382 } input_kind;
adamc@737	383
adamc@756	384 typedef struct input {
adamc@737	385 input_kind kind;
adamc@737	386 union {
adamc@737	387 char *normal;
adamc@739	388 uw_Basis_file file;
adamc@756	389 struct {
adamc@759	390 struct input fields, parent;
adamc@756	391 } subform;
adamc@759	392 struct {
adamc@759	393 struct input entries, parent;
adamc@759	394 } subforms;
adamc@759	395 struct {
adamc@759	396 struct input fields, next, *parent;
adamc@759	397 } entry;
adamc@737	398 } data;
adamc@737	399 } input;
adamc@737	400
adamc@771	401 typedef struct {
adamc@771	402 void *data;
adam@1327	403 uw_callback commit, rollback;
adam@1327	404 uw_callback_with_retry free;
adamc@771	405 } transactional;
adamc@771	406
adamc@1061	407 typedef struct {
adamc@1061	408 char *name;
adamc@1061	409 void *data;
adamc@1061	410 void (free)(void);
adamc@1061	411 } global;
adamc@1061	412
adamc@311	413 struct uw_context {
adamc@1094	414 uw_app *app;
adam@1446	415 int id;
adamc@1094	416
adamc@854	417 char (get_header)(void , const char );
adamc@854	418 void *get_header_data;
adamc@457	419
adam@1369	420 uw_buffer outHeaders, page, heap, script;
adam@1451	421 int allowed_to_return_indirectly, returning_indirectly;
adamc@759	422 input inputs, subinputs, *cur_container;
adamc@1094	423 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	424
adam@1446	425 unsigned long long source_count;
adamc@562	426
adamc@272	427 void *db;
adamc@272	428
adamc@167	429 jmp_buf jmp_buf;
adamc@167	430
adamc@323	431 regions *regions;
adamc@323	432
adamc@425	433 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	434
adamc@1094	435 const char *script_header;
adamc@643	436
adamc@736	437 int needs_push, needs_sig;
adamc@693	438
adamc@682	439 size_t n_deltas, used_deltas;
adamc@682	440 delta *deltas;
adamc@671	441
adamc@682	442 client *client;
adamc@682	443
adamc@771	444 transactional *transactionals;
adamc@771	445 size_t n_transactionals, used_transactionals;
adamc@771	446
adamc@1061	447 global *globals;
adamc@1061	448 size_t n_globals;
adamc@1061	449
adamc@1066	450 char *current_url;
adamc@1066	451
adamc@1114	452 int deadline;
adamc@1114	453
adamc@1121	454 void *client_data;
adamc@1121	455
adam@1334	456 void *logger_data;
adam@1334	457 uw_logger log_debug;
adam@1334	458
adam@1386	459 int isPost, hasPostBody;
adam@1347	460 uw_Basis_postBody postBody;
adam@1370	461 uw_Basis_string queryString;
adam@1347	462
adam@1556	463 unsigned nextId;
adam@1556	464
adamc@167	465 char error_message[ERROR_BUF_LEN];
adamc@117	466 };
adamc@117	467
adamc@1113	468 size_t uw_headers_max = SIZE_MAX;
adamc@1113	469 size_t uw_page_max = SIZE_MAX;
adamc@1113	470 size_t uw_heap_max = SIZE_MAX;
adamc@1113	471 size_t uw_script_max = SIZE_MAX;
adamc@1113	472
adam@1446	473 uw_context uw_init(int id, void *logger_data, uw_logger log_debug) {
adamc@311	474 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	475
adamc@1094	476 ctx->app = NULL;
adam@1446	477 ctx->id = id;
adamc@1094	478
adamc@854	479 ctx->get_header = NULL;
adamc@854	480 ctx->get_header_data = NULL;
adamc@457	481
adam@1413	482 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413	483 ctx->outHeaders.start[0] = 0;
adam@1413	484 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413	485 ctx->page.start[0] = 0;
adam@1451	486 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	487 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369	488 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667	489 ctx->script.start[0] = 0;
adamc@136	490
adamc@1094	491 ctx->inputs = malloc(0);
adamc@759	492 ctx->cur_container = NULL;
adamc@756	493 ctx->subinputs = malloc(0);
adamc@1094	494 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	495
adamc@272	496 ctx->db = NULL;
adamc@272	497
adamc@323	498 ctx->regions = NULL;
adamc@323	499
adamc@425	500 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	501
adamc@643	502 ctx->script_header = "";
adamc@693	503 ctx->needs_push = 0;
adamc@736	504 ctx->needs_sig = 0;
adamc@1104	505
adamc@565	506 ctx->source_count = 0;
adamc@562	507
adamc@682	508 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	509 ctx->deltas = malloc(0);
adamc@671	510
adamc@700	511 ctx->client = NULL;
adamc@700	512
adamc@700	513 ctx->error_message[0] = 0;
adamc@700	514
adamc@771	515 ctx->transactionals = malloc(0);
adamc@771	516 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	517
adamc@1061	518 ctx->globals = malloc(0);
adamc@1061	519 ctx->n_globals = 0;
adamc@1061	520
adamc@1066	521 ctx->current_url = "";
adamc@1066	522
adamc@1114	523 ctx->deadline = INT_MAX;
adamc@1114	524
adamc@1121	525 ctx->client_data = uw_init_client_data();
adamc@1121	526
adam@1334	527 ctx->logger_data = logger_data;
adam@1334	528 ctx->log_debug = log_debug;
adam@1334	529
adam@1386	530 ctx->isPost = ctx->hasPostBody = 0;
adam@1347	531
adam@1370	532 ctx->queryString = NULL;
adam@1370	533
adam@1556	534 ctx->nextId = 0;
adam@1556	535
adamc@117	536 return ctx;
adamc@106	537 }
adamc@106	538
adamc@1113	539 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	540
adamc@1121	541 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	542 return ctx->app;
adamc@1121	543 }
adamc@1121	544
adamc@1113	545 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	546 ctx->app = app;
adamc@1094	547
adamc@1105	548 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	549 if (app->inputs_len > uw_inputs_max)
adamc@1113	550 return 1;
adamc@1113	551
adamc@1094	552 ctx->sz_inputs = app->inputs_len;
adamc@1094	553 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	554 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	555 }
adamc@1134	556
adamc@1134	557 return 0;
adamc@1094	558 }
adamc@1094	559
adamc@1121	560 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	561 uw_copy_client_data(ctx->client_data, data);
adamc@1121	562 }
adamc@1121	563
adamc@311	564 void uw_set_db(uw_context ctx, void *db) {
adamc@272	565 ctx->db = db;
adamc@272	566 }
adamc@272	567
adamc@311	568 void *uw_get_db(uw_context ctx) {
adamc@272	569 return ctx->db;
adamc@272	570 }
adamc@272	571
adamc@311	572 void uw_free(uw_context ctx) {
adamc@671	573 size_t i;
adamc@671	574
adam@1369	575 uw_buffer_free(&ctx->outHeaders);
adam@1369	576 uw_buffer_free(&ctx->script);
adam@1369	577 uw_buffer_free(&ctx->page);
adam@1369	578 uw_buffer_free(&ctx->heap);
adamc@144	579 free(ctx->inputs);
adamc@756	580 free(ctx->subinputs);
adamc@425	581 free(ctx->cleanup);
adamc@771	582 free(ctx->transactionals);
adamc@1121	583 uw_free_client_data(ctx->client_data);
adamc@671	584
adamc@682	585 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	586 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	587 free(ctx->deltas);
adamc@671	588
adamc@1061	589 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	590 if (ctx->globals[i].free)
adamc@1089	591 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	592 free(ctx->globals);
adamc@1061	593
adamc@136	594 free(ctx);
adamc@136	595 }
adamc@136	596
adamc@562	597 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	598 uw_buffer_reset(&ctx->outHeaders);
adam@1369	599 uw_buffer_reset(&ctx->script);
adamc@667	600 ctx->script.start[0] = 0;
adam@1369	601 uw_buffer_reset(&ctx->page);
adam@1451	602 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	603 uw_buffer_reset(&ctx->heap);
adamc@323	604 ctx->regions = NULL;
adamc@425	605 ctx->cleanup_front = ctx->cleanup;
adamc@682	606 ctx->used_deltas = 0;
adamc@682	607 ctx->client = NULL;
adamc@759	608 ctx->cur_container = NULL;
adamc@771	609 ctx->used_transactionals = 0;
adamc@1117	610 ctx->script_header = "";
adam@1370	611 ctx->queryString = NULL;
adam@1556	612 ctx->nextId = 0;
adamc@167	613 }
adamc@167	614
adamc@562	615 void uw_reset_keep_request(uw_context ctx) {
adamc@562	616 uw_reset_keep_error_message(ctx);
adamc@562	617 ctx->error_message[0] = 0;
adamc@167	618 }
adamc@167	619
adamc@311	620 void uw_reset(uw_context ctx) {
adamc@311	621 uw_reset_keep_request(ctx);
adamc@1105	622 if (ctx->app)
adamc@1105	623 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	624 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461	625 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adamc@144	626 }
adamc@144	627
adamc@311	628 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	629 int r = setjmp(ctx->jmp_buf);
adamc@272	630
adamc@1105	631 if (r == 0 && ctx->app)
adamc@1094	632 ctx->app->db_init(ctx);
adamc@272	633
adamc@272	634 return r;
adamc@272	635 }
adamc@272	636
adamc@1118	637 void uw_close(uw_context ctx) {
adamc@1118	638 ctx->app->db_close(ctx);
adamc@1118	639 }
adamc@1118	640
adam@1446	641 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	642 return ctx->get_header(ctx->get_header_data, h);
adam@1446	643 }
adam@1446	644
adamc@854	645 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	646 ctx->get_header = get_header;
adamc@854	647 ctx->get_header_data = get_header_data;
adamc@742	648 }
adamc@742	649
adamc@801	650 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	651 va_list ap;
adamc@801	652 va_start(ap, fmt);
adamc@801	653
adamc@801	654 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	655 }
adamc@801	656
adamc@1131	657 int uw_has_error(uw_context ctx) {
adamc@1131	658 return ctx->error_message[0] != 0;
adamc@1131	659 }
adamc@1131	660
adamc@311	661 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	662 cleanup *cl;
adamc@425	663
adamc@167	664 va_list ap;
adamc@167	665 va_start(ap, fmt);
adamc@167	666
adamc@167	667 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	668
adamc@425	669 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	670 cl->func(cl->arg);
adamc@425	671
adamc@425	672 ctx->cleanup_front = ctx->cleanup;
adamc@425	673
adamc@190	674 longjmp(ctx->jmp_buf, fk);
adamc@167	675 }
adamc@167	676
adamc@1113	677 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	678
adamc@425	679 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	680 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	681 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	682 if (len == 0)
adamc@425	683 newLen = 1;
adamc@425	684 else
adamc@428	685 newLen = len * 2;
adamc@1113	686
adamc@1134	687 if (newLen > uw_cleanup_max) {
adamc@1113	688 if (len+1 <= uw_cleanup_max)
adamc@1113	689 newLen = uw_cleanup_max;
adamc@1113	690 else
adamc@1113	691 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	692 }
adamc@1113	693
adamc@470	694 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	695 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	696 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	697 }
adamc@425	698
adamc@425	699 ctx->cleanup_front->func = func;
adamc@425	700 ctx->cleanup_front->arg = arg;
adamc@425	701 ++ctx->cleanup_front;
adamc@425	702 }
adamc@425	703
adam@1444	704 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	705
adamc@682	706 void uw_login(uw_context ctx) {
adamc@693	707 if (ctx->needs_push) {
adamc@682	708 char id_s, pass_s;
adamc@682	709
adamc@682	710 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682	711 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682	712 unsigned id = atoi(id_s);
adamc@682	713 int pass = atoi(pass_s);
adamc@682	714 client *c = find_client(id);
adamc@682	715
adamc@682	716 if (c == NULL)
adam@1444	717 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	718 else {
adamc@685	719 use_client(c);
adamc@682	720 ctx->client = c;
adamc@682	721
adamc@682	722 if (c->mode != USED)
adamc@682	723 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682	724 if (c->pass != pass)
adamc@682	725 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682	726 }
adamc@682	727 } else {
adamc@682	728 client *c = new_client();
adamc@1113	729
adamc@1113	730 if (c == NULL)
adamc@1113	731 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adamc@1113	732
adamc@685	733 use_client(c);
adamc@1121	734 uw_copy_client_data(c->data, ctx->client_data);
adamc@682	735 ctx->client = c;
adamc@864	736 }
adamc@682	737 }
adamc@682	738 }
adamc@682	739
adamc@671	740 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	741 int r = setjmp(ctx->jmp_buf);
adamc@671	742
adamc@671	743 if (r == 0) {
adamc@1094	744 if (ctx->app->db_begin(ctx))
adamc@671	745 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adamc@682	746
adamc@1094	747 ctx->app->handle(ctx, path);
adamc@671	748 }
adamc@671	749
adamc@671	750 return r;
adamc@671	751 }
adamc@671	752
adamc@772	753 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	754 if (ctx->client == NULL)
adamc@682	755 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	756
adamc@682	757 return ctx->client->id;
adamc@682	758 }
adamc@682	759
adamc@425	760 void uw_pop_cleanup(uw_context ctx) {
adamc@425	761 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	762 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	763
adamc@425	764 --ctx->cleanup_front;
adamc@425	765 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	766 }
adamc@425	767
adamc@311	768 char *uw_error_message(uw_context ctx) {
adamc@167	769 return ctx->error_message;
adamc@167	770 }
adamc@167	771
adamc@1115	772 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	773 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	774 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	775 }
adamc@1115	776
adamc@759	777 static input *INP(uw_context ctx) {
adamc@759	778 if (ctx->cur_container == NULL)
adamc@759	779 return ctx->inputs;
adamc@759	780 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	781 return ctx->cur_container->data.subform.fields;
adamc@759	782 else if (ctx->cur_container->kind == ENTRY)
adamc@759	783 return ctx->cur_container->data.entry.fields;
adamc@759	784 else
adamc@760	785 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	786 }
adamc@759	787
adamc@760	788 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	789 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	790 *ptr += new_start - old_start;
adamc@760	791 }
adamc@760	792
adamc@760	793 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	794 switch (x->kind) {
adamc@759	795 case SUBFORM:
adamc@760	796 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	797 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	798 break;
adamc@759	799 case SUBFORMS:
adamc@760	800 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	801 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	802 break;
adamc@759	803 case ENTRY:
adamc@760	804 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	805 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	806 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	807 break;
adamc@1134	808 default:
adamc@1134	809 break;
adamc@759	810 }
adamc@759	811 }
adamc@759	812
adamc@1113	813 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	814
adamc@759	815 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	816 size_t i;
adamc@759	817 input *r;
adamc@759	818
adamc@759	819 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	820 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	821 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	822
adamc@759	823 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	824
adamc@760	825 if (ctx->subinputs != new_subinputs) {
adamc@760	826 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	827 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	828 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	829 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	830
adamc@760	831 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	832
adamc@760	833 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	834 ctx->subinputs = new_subinputs;
adamc@760	835 }
adamc@759	836 }
adamc@759	837
adamc@759	838 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	839
adamc@759	840 for (i = 0; i < len; ++i)
adam@1474	841 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	842
adamc@759	843 return r;
adamc@759	844 }
adamc@756	845
adamc@801	846 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	847 //printf("Input name %s\n", name);
adamc@1038	848
adamc@756	849 if (!strcasecmp(name, ".b")) {
adamc@1094	850 int n = ctx->app->input_num(value);
adamc@756	851 input *inps;
adamc@756	852
adamc@801	853 if (n < 0) {
adam@1444	854 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	855 return -1;
adamc@801	856 }
adamc@801	857
adamc@1094	858 if (n >= ctx->app->inputs_len) {
adam@1444	859 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	860 return -1;
adamc@801	861 }
adamc@756	862
adamc@1094	863 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	864
adamc@759	865 INP(ctx)[n].kind = SUBFORM;
adamc@759	866 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	867 INP(ctx)[n].data.subform.fields = inps;
adamc@759	868 ctx->cur_container = &INP(ctx)[n];
adamc@756	869 } else if (!strcasecmp(name, ".e")) {
adamc@756	870 input *tmp;
adamc@756	871
adamc@801	872 if (ctx->cur_container == NULL) {
adamc@801	873 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	874 return -1;
adamc@801	875 }
adamc@756	876
adamc@759	877 tmp = ctx->cur_container;
adamc@759	878 switch (tmp->kind) {
adamc@759	879 case SUBFORM:
adamc@759	880 ctx->cur_container = tmp->data.subform.parent;
adamc@759	881 tmp->data.subform.parent = NULL;
adamc@759	882 break;
adamc@759	883 case SUBFORMS:
adamc@759	884 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	885 tmp->data.subforms.parent = NULL;
adamc@759	886 break;
adamc@759	887 case ENTRY:
adamc@759	888 ctx->cur_container = tmp->data.entry.parent;
adamc@759	889 break;
adamc@759	890 default:
adamc@801	891 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	892 return -1;
adamc@759	893 }
adamc@759	894 } else if (!strcasecmp(name, ".s")) {
adamc@1094	895 int n = ctx->app->input_num(value);
adamc@759	896
adamc@801	897 if (n < 0) {
adam@1444	898 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	899 return -1;
adamc@801	900 }
adamc@801	901
adamc@1094	902 if (n >= ctx->app->inputs_len) {
adam@1444	903 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	904 return -1;
adamc@801	905 }
adamc@759	906
adamc@759	907 INP(ctx)[n].kind = SUBFORMS;
adamc@759	908 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	909 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	910 ctx->cur_container = &INP(ctx)[n];
adamc@759	911 } else if (!strcasecmp(name, ".i")) {
adamc@759	912 input *inps;
adamc@759	913
adamc@801	914 if (!ctx->cur_container) {
adamc@801	915 uw_set_error(ctx, "New entry without container");
adamc@801	916 return -1;
adamc@801	917 }
adamc@801	918
adamc@801	919 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	920 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	921 return -1;
adamc@801	922 }
adamc@759	923
adamc@1094	924 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	925
adamc@759	926 inps->kind = ENTRY;
adamc@759	927 inps->data.entry.parent = ctx->cur_container;
adamc@759	928 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	929 ctx->cur_container->data.subforms.entries = inps;
adamc@759	930
adamc@759	931 inps->data.entry.fields = inps+1;
adamc@759	932 ctx->cur_container = inps;
adamc@756	933 } else {
adamc@1094	934 int n = ctx->app->input_num(name);
adamc@756	935
adam@1384	936 if (n < 0)
adam@1384	937 return 0;
adamc@801	938
adamc@1094	939 if (n >= ctx->app->inputs_len) {
adam@1444	940 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	941 return -1;
adamc@801	942 }
adamc@756	943
adamc@756	944 INP(ctx)[n].kind = NORMAL;
adamc@756	945 INP(ctx)[n].data.normal = value;
adamc@756	946 }
adamc@801	947
adamc@801	948 return 0;
adamc@144	949 }
adamc@144	950
adamc@311	951 char *uw_get_input(uw_context ctx, int n) {
adamc@169	952 if (n < 0)
adamc@311	953 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	954 if (n >= ctx->app->inputs_len)
adamc@311	955 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	956
adamc@756	957 switch (INP(ctx)[n].kind) {
adamc@737	958 case UNSET:
adamc@737	959 return NULL;
adamc@739	960 case FIL:
adamc@739	961 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	962 case SUBFORM:
adamc@756	963 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	964 case SUBFORMS:
adamc@759	965 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	966 case ENTRY:
adamc@759	967 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	968 case NORMAL:
adamc@756	969 return INP(ctx)[n].data.normal;
adamc@737	970 default:
adamc@737	971 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	972 }
adamc@138	973 }
adamc@138	974
adamc@311	975 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	976 if (n < 0)
adamc@311	977 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	978 if (n >= ctx->app->inputs_len)
adamc@311	979 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	980
adamc@756	981 switch (INP(ctx)[n].kind) {
adamc@737	982 case UNSET:
adamc@737	983 return "";
adamc@739	984 case FIL:
adamc@739	985 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	986 case SUBFORM:
adamc@756	987 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	988 case SUBFORMS:
adamc@759	989 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	990 case ENTRY:
adamc@759	991 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	992 case NORMAL:
adamc@756	993 return INP(ctx)[n].data.normal;
adamc@737	994 default:
adamc@737	995 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	996 }
adamc@737	997 }
adamc@737	998
adamc@801	999 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1000 int n = ctx->app->input_num(name);
adamc@737	1001
adamc@801	1002 if (n < 0) {
adam@1444	1003 uw_set_error(ctx, "Bad file input name %s", uw_Basis_htmlifyString(ctx, name));
adamc@801	1004 return -1;
adamc@801	1005 }
adamc@801	1006
adamc@1094	1007 if (n >= ctx->app->inputs_len) {
adam@1444	1008 uw_set_error(ctx, "For file input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	1009 return -1;
adamc@801	1010 }
adamc@737	1011
adamc@739	1012 ctx->inputs[n].kind = FIL;
adamc@739	1013 ctx->inputs[n].data.file = f;
adamc@801	1014
adamc@801	1015 return 0;
adamc@737	1016 }
adamc@737	1017
adamc@739	1018 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1019
adamc@739	1020 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1021 if (n < 0)
adamc@737	1022 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1023 if (n >= ctx->app->inputs_len)
adamc@737	1024 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1025
adamc@756	1026 switch (INP(ctx)[n].kind) {
adamc@737	1027 case UNSET:
adamc@737	1028 {
adamc@739	1029 char *data = uw_malloc(ctx, 0);
adamc@740	1030 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1031 return f;
adamc@737	1032 }
adamc@739	1033 case FIL:
adamc@756	1034 return INP(ctx)[n].data.file;
adamc@737	1035 case NORMAL:
adamc@737	1036 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1037 case SUBFORM:
adamc@756	1038 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1039 case SUBFORMS:
adamc@759	1040 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1041 case ENTRY:
adamc@759	1042 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1043 default:
adamc@737	1044 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1045 }
adamc@190	1046 }
adamc@190	1047
adamc@756	1048 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1049 if (n < 0)
adamc@756	1050 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1051 if (n >= ctx->app->inputs_len)
adamc@756	1052 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1053
adamc@756	1054 switch (INP(ctx)[n].kind) {
adamc@756	1055 case UNSET:
adamc@756	1056 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1057 case FIL:
adamc@756	1058 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1059 case NORMAL:
adamc@756	1060 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1061 case SUBFORMS:
adamc@759	1062 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1063 case ENTRY:
adamc@759	1064 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1065 case SUBFORM:
adamc@759	1066 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1067 ctx->cur_container = &INP(ctx)[n];
adamc@756	1068 return;
adamc@756	1069 default:
adamc@756	1070 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1071 }
adamc@756	1072 }
adamc@756	1073
adamc@756	1074 void uw_leave_subform(uw_context ctx) {
adamc@756	1075 input *tmp;
adamc@756	1076
adamc@759	1077 if (ctx->cur_container == NULL)
adamc@756	1078 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1079
adamc@759	1080 tmp = ctx->cur_container;
adamc@759	1081 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1082 tmp->data.subform.parent = NULL;
adamc@759	1083 }
adamc@759	1084
adamc@759	1085 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1086 input *inps;
adamc@759	1087
adamc@759	1088 if (n < 0)
adamc@759	1089 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1090 if (n >= ctx->app->inputs_len)
adamc@759	1091 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1092
adamc@759	1093 switch (INP(ctx)[n].kind) {
adamc@759	1094 case UNSET:
adamc@759	1095 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1096 case FIL:
adamc@759	1097 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1098 case NORMAL:
adamc@759	1099 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1100 case SUBFORM:
adamc@759	1101 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1102 case ENTRY:
adamc@759	1103 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1104 case SUBFORMS:
adamc@759	1105 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1106 if (inps) {
adamc@759	1107 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1108 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1109 return 1;
adamc@759	1110 } else
adamc@759	1111 return 0;
adamc@759	1112 default:
adamc@759	1113 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1114 }
adamc@759	1115 }
adamc@759	1116
adamc@759	1117 int uw_next_entry(uw_context ctx) {
adamc@759	1118 if (ctx->cur_container == NULL)
adamc@759	1119 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1120
adamc@759	1121 switch (ctx->cur_container->kind) {
adamc@759	1122 case UNSET:
adamc@759	1123 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1124 case FIL:
adamc@759	1125 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1126 case NORMAL:
adamc@759	1127 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1128 case SUBFORM:
adamc@759	1129 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1130 case SUBFORMS:
adamc@759	1131 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1132 case ENTRY:
adamc@759	1133 if (ctx->cur_container->data.entry.next) {
adamc@759	1134 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1135 return 1;
adamc@759	1136 } else {
adamc@759	1137 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1138 return 0;
adamc@759	1139 }
adamc@759	1140 default:
adamc@759	1141 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1142 }
adamc@756	1143 }
adamc@756	1144
adamc@643	1145 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1146 ctx->script_header = s;
adamc@643	1147 }
adamc@643	1148
adamc@1094	1149 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1150 return ctx->app->url_prefix;
adamc@667	1151 }
adamc@667	1152
adamc@693	1153 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1154 ctx->needs_push = n;
adamc@693	1155 }
adamc@693	1156
adamc@736	1157 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1158 ctx->needs_sig = n;
adamc@736	1159 }
adamc@736	1160
adamc@667	1161
adam@1369	1162 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1163 if (b->back - b->front < extra) {
adamc@666	1164 size_t desired = b->front - b->start + extra, next;
adamc@136	1165 char *new_heap;
adamc@136	1166
adamc@666	1167 next = b->back - b->start;
adamc@317	1168 if (next == 0)
adamc@317	1169 next = 1;
adamc@317	1170 for (; next < desired; next *= 2);
adamc@136	1171
adamc@1134	1172 if (next > b->max) {
adamc@1113	1173 if (desired <= b->max)
adamc@1113	1174 next = desired;
adamc@1113	1175 else
adamc@1113	1176 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1177 }
adamc@1113	1178
adamc@666	1179 new_heap = realloc(b->start, next);
adamc@666	1180 b->front = new_heap + (b->front - b->start);
adamc@666	1181 b->back = new_heap + next;
adamc@136	1182
adamc@667	1183 if (new_heap != b->start) {
adamc@666	1184 b->start = new_heap;
adam@1389	1185 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1186 }
adamc@136	1187
adamc@666	1188 b->start = new_heap;
adamc@136	1189 }
adamc@136	1190 }
adamc@136	1191
adamc@832	1192 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1193 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1194 }
adamc@666	1195
adamc@832	1196 char *uw_heap_front(uw_context ctx) {
adamc@832	1197 return ctx->heap.front;
adamc@832	1198 }
adamc@832	1199
adamc@832	1200 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1201 ctx->heap.front = fr;
adamc@832	1202 }
adamc@832	1203
adamc@311	1204 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136	1205 void *result;
adamc@136	1206
adamc@311	1207 uw_check_heap(ctx, len);
adamc@136	1208
adamc@666	1209 result = ctx->heap.front;
adamc@666	1210 ctx->heap.front += len;
adamc@136	1211 return result;
adamc@117	1212 }
adamc@117	1213
adamc@323	1214 void uw_begin_region(uw_context ctx) {
adamc@666	1215 regions r = (regions ) ctx->heap.front;
adamc@323	1216
adamc@323	1217 uw_check_heap(ctx, sizeof(regions));
adamc@323	1218
adamc@666	1219 ctx->heap.front += sizeof(regions);
adamc@323	1220
adamc@323	1221 r->next = ctx->regions;
adamc@323	1222 ctx->regions = r;
adamc@323	1223 }
adamc@323	1224
adamc@323	1225 void uw_end_region(uw_context ctx) {
adamc@323	1226 regions *r = ctx->regions;
adamc@323	1227
adamc@323	1228 if (r == NULL)
adamc@323	1229 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1230
adamc@666	1231 ctx->heap.front = (char *) r;
adamc@323	1232 ctx->regions = r->next;
adamc@323	1233 }
adamc@323	1234
adamc@324	1235 void uw_memstats(uw_context ctx) {
adam@1369	1236 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1237 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1238 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1239 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1240 }
adamc@324	1241
adamc@311	1242 int uw_send(uw_context ctx, int sock) {
adamc@666	1243 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462	1244
adamc@462	1245 if (n < 0)
adamc@462	1246 return n;
adamc@462	1247
adamc@462	1248 n = uw_really_send(sock, "\r\n", 2);
adamc@462	1249
adamc@462	1250 if (n < 0)
adamc@462	1251 return n;
adamc@462	1252
adamc@666	1253 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462	1254 }
adamc@462	1255
adamc@856	1256 int uw_print(uw_context ctx, int fd) {
adamc@856	1257 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1258
adamc@856	1259 if (n < 0)
adamc@856	1260 return n;
adamc@856	1261
adamc@856	1262 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1263
adamc@856	1264 if (n < 0)
adamc@856	1265 return n;
adamc@856	1266
adamc@856	1267 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1268 }
adamc@856	1269
adamc@860	1270 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1271 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1272
adamc@860	1273 if (n < 0)
adamc@860	1274 return n;
adamc@860	1275
adamc@860	1276 n = output(data, "\r\n", 2);
adamc@860	1277
adamc@860	1278 if (n < 0)
adamc@860	1279 return n;
adamc@860	1280
adamc@860	1281 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1282 }
adamc@860	1283
adamc@462	1284 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1285 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1286 }
adamc@462	1287
adamc@462	1288 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1289 int len = strlen(s);
adamc@462	1290
adamc@462	1291 uw_check_headers(ctx, len + 1);
adamc@666	1292 strcpy(ctx->outHeaders.front, s);
adamc@666	1293 ctx->outHeaders.front += len;
adamc@562	1294 }
adamc@562	1295
adamc@1110	1296 void uw_clear_headers(uw_context ctx) {
adam@1369	1297 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1298 }
adamc@1110	1299
adamc@562	1300 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1301 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1302 }
adamc@562	1303
adamc@562	1304 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1305 int len = strlen(s);
adamc@562	1306
adamc@562	1307 uw_check_script(ctx, len + 1);
adamc@666	1308 strcpy(ctx->script.front, s);
adamc@666	1309 ctx->script.front += len;
adamc@562	1310 }
adamc@562	1311
adamc@645	1312 const char *uw_Basis_get_script(uw_context ctx, uw_unit u) {
adamc@916	1313 return "<sc>";
adamc@565	1314 }
adamc@565	1315
adam@1446	1316 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1317 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1318 uw_write_script(ctx, "sig=\"");
adam@1671	1319 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1320 uw_write_script(ctx, "\";");
adam@1671	1321 }
adam@1671	1322
adam@1446	1323 return ctx->script.start;
adam@1446	1324 }
adam@1446	1325
adamc@695	1326 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1327 if (s[0] == 0)
adamc@695	1328 return "";
adamc@695	1329 else {
adamc@695	1330 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1331 sprintf(r, " onload='%s'", s);
adamc@695	1332 return r;
adamc@695	1333 }
adamc@695	1334 }
adamc@695	1335
adamc@1042	1336 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1337 if (ctx->script_header[0] == 0)
adamc@1042	1338 return "";
adamc@1042	1339 else {
adamc@1042	1340 char *r = uw_malloc(ctx, 22 + strlen(s));
adamc@1042	1341 sprintf(r, " onunload='unload();%s'", s);
adamc@1042	1342 return r;
adamc@1042	1343 }
adamc@1042	1344 }
adamc@1042	1345
adamc@694	1346 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1347 if (ctx->client == NULL) {
adamc@736	1348 if (ctx->needs_sig) {
adamc@1094	1349 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1350 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1351 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1352 return r;
adamc@736	1353 }
adamc@736	1354 else
adamc@736	1355 return "";
adamc@736	1356 } else {
adamc@1094	1357 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1358 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1359 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1360 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1361 (ctx->isPost ? "true" : "false"),
adamc@682	1362 ctx->client->id,
adamc@682	1363 ctx->client->pass,
adamc@1094	1364 ctx->app->url_prefix,
adamc@1094	1365 ctx->app->timeout,
adamc@736	1366 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1367 sig,
adamc@736	1368 ctx->needs_sig ? "\";" : "");
adamc@679	1369 return r;
adamc@668	1370 }
adamc@667	1371 }
adamc@667	1372
adamc@574	1373 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1374 char r, s2;
adamc@574	1375
adam@1446	1376 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1377
adamc@666	1378 r = s2 = ctx->heap.front;
adamc@574	1379 *s2++ = '"';
adamc@574	1380
adamc@574	1381 for (; *s; s++) {
adam@1286	1382 unsigned char c = *s;
adamc@574	1383
adamc@574	1384 switch (c) {
adamc@574	1385 case '"':
adamc@574	1386 strcpy(s2, "\\\"");
adamc@574	1387 s2 += 2;
adamc@574	1388 break;
adamc@1027	1389 case '\'':
adamc@1027	1390 strcpy(s2, "\\047");
adamc@1027	1391 s2 += 4;
adamc@1027	1392 break;
adamc@574	1393 case '\\':
adamc@574	1394 strcpy(s2, "\\\\");
adamc@574	1395 s2 += 2;
adamc@574	1396 break;
adam@1457	1397 case '<':
adam@1457	1398 strcpy(s2, "\\074");
adam@1457	1399 s2 += 4;
adam@1457	1400 break;
adamc@574	1401 default:
adam@1286	1402 if (isprint((int)c) \|\| c >= 128)
adamc@574	1403 *s2++ = c;
adamc@574	1404 else {
adam@1429	1405 sprintf(s2, "\\%03o", c);
adamc@574	1406 s2 += 4;
adamc@574	1407 }
adamc@574	1408 }
adamc@574	1409 }
adamc@574	1410
adamc@574	1411 strcpy(s2, "\"");
adamc@910	1412 ctx->heap.front = s2 + 2;
adamc@574	1413 return r;
adamc@574	1414 }
adamc@574	1415
adam@1286	1416 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1417 unsigned char c = c1;
adamc@1025	1418 char r, s2;
adamc@1025	1419
adam@1446	1420 uw_check_heap(ctx, 7);
adamc@1025	1421
adamc@1025	1422 r = s2 = ctx->heap.front;
adamc@1025	1423 *s2++ = '"';
adamc@1025	1424
adamc@1025	1425 switch (c) {
adamc@1025	1426 case '"':
adamc@1025	1427 strcpy(s2, "\\\"");
adamc@1025	1428 s2 += 2;
adamc@1025	1429 break;
adamc@1027	1430 case '\'':
adamc@1027	1431 strcpy(s2, "\\047");
adamc@1027	1432 s2 += 4;
adamc@1027	1433 break;
adamc@1025	1434 case '\\':
adamc@1025	1435 strcpy(s2, "\\\\");
adamc@1025	1436 s2 += 2;
adamc@1025	1437 break;
adam@1457	1438 case '<':
adam@1457	1439 strcpy(s2, "\\074");
adam@1457	1440 s2 += 4;
adam@1457	1441 break;
adamc@1025	1442 default:
adam@1286	1443 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1444 *s2++ = c;
adamc@1025	1445 else {
adam@1429	1446 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1447 s2 += 4;
adamc@1025	1448 }
adamc@1025	1449 }
adamc@1025	1450
adamc@1025	1451 strcpy(s2, "\"");
adamc@1025	1452 ctx->heap.front = s2 + 2;
adamc@1025	1453 return r;
adamc@1025	1454 }
adamc@1025	1455
adamc@574	1456 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1457 char r, s2;
adamc@574	1458
adam@1446	1459 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1460
adamc@666	1461 r = s2 = ctx->script.front;
adamc@574	1462 *s2++ = '"';
adamc@574	1463
adamc@574	1464 for (; *s; s++) {
adam@1286	1465 unsigned char c = *s;
adamc@574	1466
adamc@574	1467 switch (c) {
adamc@577	1468 case '\'':
adamc@1027	1469 strcpy(s2, "\\");
adamc@574	1470 s2 += 2;
adamc@574	1471 break;
adamc@574	1472 case '\\':
adamc@574	1473 strcpy(s2, "\\\\");
adamc@574	1474 s2 += 2;
adamc@574	1475 break;
adam@1457	1476 case '<':
adam@1457	1477 strcpy(s2, "\\074");
adam@1457	1478 s2 += 4;
adam@1457	1479 break;
adamc@574	1480 default:
adam@1286	1481 if (isprint((int)c) \|\| c >= 128)
adamc@574	1482 *s2++ = c;
adamc@574	1483 else {
adam@1429	1484 sprintf(s2, "\\%03o", c);
adamc@574	1485 s2 += 4;
adamc@574	1486 }
adamc@574	1487 }
adamc@574	1488 }
adamc@574	1489
adamc@574	1490 strcpy(s2, "\"");
adamc@666	1491 ctx->script.front = s2 + 1;
adamc@574	1492 return r;
adamc@574	1493 }
adamc@574	1494
adamc@682	1495 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1496 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1497 return "null";
adamc@682	1498 else {
adamc@682	1499 int len;
adamc@682	1500 char *r;
adamc@682	1501
adamc@682	1502 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1503 r = ctx->heap.front;
adamc@682	1504 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1505 ctx->heap.front += len+1;
adamc@682	1506 return r;
adamc@682	1507 }
adamc@682	1508 }
adamc@682	1509
adam@1446	1510 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1511 int len;
adamc@577	1512 size_t s_len = strlen(s);
adamc@562	1513
adam@1446	1514 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1515 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1516 ctx->script.front += len;
adamc@666	1517 strcpy(ctx->script.front, s);
adamc@666	1518 ctx->script.front += s_len;
adamc@970	1519 strcpy(ctx->script.front, "));");
adamc@972	1520 ctx->script.front += 3;
adamc@562	1521
adam@1446	1522 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1523 return r;
adam@1446	1524 }
adam@1446	1525
adam@1446	1526 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1527 int len;
adamc@577	1528 size_t s_len = strlen(s);
adamc@577	1529
adam@1446	1530 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1531 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1532 ctx->script.front += len;
adamc@666	1533 strcpy(ctx->script.front, s);
adamc@666	1534 ctx->script.front += s_len;
adamc@970	1535 strcpy(ctx->script.front, "));");
adamc@972	1536 ctx->script.front += 3;
adamc@577	1537
adamc@577	1538 return uw_unit_v;
adamc@577	1539 }
adamc@577	1540
adamc@311	1541 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1542 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1543 }
adamc@117	1544
adamc@311	1545 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1546 *(ctx->page.front)++ = c;
adam@1413	1547 *ctx->page.front = 0;
adamc@117	1548 }
adamc@117	1549
adamc@311	1550 void uw_writec(uw_context ctx, char c) {
adam@1413	1551 uw_check(ctx, 2);
adamc@311	1552 uw_writec_unsafe(ctx, c);
adamc@117	1553 }
adamc@117	1554
adamc@311	1555 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1556 int len = strlen(s);
adamc@666	1557 memcpy(ctx->page.front, s, len);
adamc@666	1558 ctx->page.front += len;
adamc@117	1559 }
adamc@117	1560
adamc@311	1561 void uw_write(uw_context ctx, const char* s) {
adamc@311	1562 uw_check(ctx, strlen(s) + 1);
adamc@311	1563 uw_write_unsafe(ctx, s);
adamc@666	1564 *ctx->page.front = 0;
adamc@102	1565 }
adamc@106	1566
adamc@311	1567 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1568 char *result;
adamc@136	1569 int len;
adamc@311	1570 uw_check_heap(ctx, INTS_MAX);
adamc@666	1571 result = ctx->heap.front;
adamc@276	1572 sprintf(result, "%lld%n", n, &len);
adamc@666	1573 ctx->heap.front += len+1;
adamc@136	1574 return result;
adamc@106	1575 }
adamc@106	1576
adamc@311	1577 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1578 char *result;
adamc@136	1579 int len;
adamc@311	1580 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1581 result = ctx->heap.front;
adamc@136	1582 sprintf(result, "%g%n", n, &len);
adamc@666	1583 ctx->heap.front += len+1;
adamc@136	1584 return result;
adamc@106	1585 }
adamc@106	1586
adamc@311	1587 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1588 int len = strlen(s);
adamc@136	1589 char result, p;
adamc@311	1590 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1591
adamc@666	1592 result = p = ctx->heap.front;
adamc@136	1593
adamc@136	1594 for (; *s; s++) {
adamc@1054	1595 unsigned char c = *s;
adamc@136	1596
adamc@136	1597 if (c == '"') {
adamc@136	1598 strcpy(p, """);
adamc@136	1599 p += 6;
adamc@136	1600 } else if (c == '&') {
adamc@136	1601 strcpy(p, "&");
adamc@136	1602 p += 5;
adamc@136	1603 }
adamc@1059	1604 else
adamc@136	1605 *p++ = c;
adamc@136	1606 }
adamc@136	1607
adamc@137	1608 *p++ = 0;
adamc@666	1609 ctx->heap.front = p;
adamc@136	1610 return result;
adamc@106	1611 }
adamc@106	1612
adamc@1011	1613 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1614 char result, p;
adamc@1011	1615 uw_check_heap(ctx, 7);
adamc@1011	1616
adamc@1011	1617 result = p = ctx->heap.front;
adamc@1011	1618
adamc@1011	1619 if (c == '"') {
adamc@1011	1620 strcpy(p, """);
adamc@1011	1621 p += 6;
adamc@1011	1622 } else if (c == '&') {
adamc@1011	1623 strcpy(p, "&");
adamc@1011	1624 p += 5;
adamc@1011	1625 }
adamc@1059	1626 else
adamc@1011	1627 *p++ = c;
adamc@1011	1628
adamc@1011	1629 *p++ = 0;
adamc@1011	1630 ctx->heap.front = p;
adamc@1011	1631 return result;
adamc@1011	1632 }
adamc@1011	1633
adamc@721	1634 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1635 return s;
adamc@721	1636 }
adamc@721	1637
adamc@311	1638 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1639 int len;
adamc@117	1640
adamc@666	1641 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1642 ctx->page.front += len;
adamc@106	1643 }
adamc@106	1644
adamc@428	1645 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1646 uw_check(ctx, INTS_MAX);
adamc@311	1647 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1648
adamc@428	1649 return uw_unit_v;
adamc@106	1650 }
adamc@106	1651
adamc@428	1652 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1653 int len;
adamc@117	1654
adamc@311	1655 uw_check(ctx, FLOATS_MAX);
adamc@666	1656 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1657 ctx->page.front += len;
adamc@428	1658
adamc@428	1659 return uw_unit_v;
adamc@117	1660 }
adamc@117	1661
adamc@428	1662 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1663 uw_check(ctx, strlen(s) * 6);
adamc@117	1664
adamc@106	1665 for (; *s; s++) {
adamc@1054	1666 unsigned char c = *s;
adamc@106	1667
adamc@106	1668 if (c == '"')
adamc@311	1669 uw_write_unsafe(ctx, """);
adamc@136	1670 else if (c == '&')
adamc@311	1671 uw_write_unsafe(ctx, "&");
adamc@1059	1672 else
adamc@311	1673 uw_writec_unsafe(ctx, c);
adamc@106	1674 }
adamc@428	1675
adamc@428	1676 return uw_unit_v;
adamc@106	1677 }
adamc@120	1678
adamc@1011	1679 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1680 uw_check(ctx, 6);
adamc@1011	1681
adamc@1011	1682 if (c == '"')
adamc@1011	1683 uw_write_unsafe(ctx, """);
adamc@1011	1684 else if (c == '&')
adamc@1011	1685 uw_write_unsafe(ctx, "&");
adamc@1059	1686 else
adamc@1011	1687 uw_writec_unsafe(ctx, c);
adamc@1011	1688
adamc@1011	1689 return uw_unit_v;
adamc@1011	1690 }
adamc@1011	1691
adamc@120	1692
adamc@311	1693 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1694 int len;
adamc@137	1695 char *r;
adamc@137	1696
adamc@311	1697 uw_check_heap(ctx, INTS_MAX);
adamc@666	1698 r = ctx->heap.front;
adamc@276	1699 sprintf(r, "%lld%n", n, &len);
adamc@666	1700 ctx->heap.front += len+1;
adamc@137	1701 return r;
adamc@120	1702 }
adamc@120	1703
adamc@682	1704 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1705 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1706 return "";
adamc@682	1707 else {
adamc@682	1708 int len;
adamc@682	1709 char *r;
adamc@679	1710
adamc@682	1711 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1712 r = ctx->heap.front;
adamc@682	1713 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1714 ctx->heap.front += len+1;
adamc@682	1715 return r;
adamc@682	1716 }
adamc@679	1717 }
adamc@679	1718
adamc@311	1719 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1720 int len;
adamc@137	1721 char *r;
adamc@137	1722
adamc@311	1723 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1724 r = ctx->heap.front;
adamc@137	1725 sprintf(r, "%g%n", n, &len);
adamc@666	1726 ctx->heap.front += len+1;
adamc@137	1727 return r;
adamc@120	1728 }
adamc@120	1729
adamc@311	1730 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1731 char r, p;
adamc@137	1732
adamc@925	1733 if (s[0] == '\0')
adamc@925	1734 return "_";
adamc@925	1735
adamc@925	1736 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1737
adamc@925	1738 r = p = ctx->heap.front;
adamc@925	1739 if (s[0] == '_')
adamc@925	1740 *p++ = '_';
adamc@925	1741
adamc@925	1742 for (; *s; s++) {
adamc@1087	1743 unsigned char c = *s;
adamc@137	1744
adamc@137	1745 if (c == ' ')
adamc@137	1746 *p++ = '+';
adamc@137	1747 else if (isalnum(c))
adamc@137	1748 *p++ = c;
adamc@137	1749 else {
adamc@1259	1750 sprintf(p, ".%02X", c);
adamc@137	1751 p += 3;
adamc@137	1752 }
adamc@137	1753 }
adamc@137	1754
adamc@137	1755 *p++ = 0;
adamc@666	1756 ctx->heap.front = p;
adamc@137	1757 return r;
adamc@120	1758 }
adamc@120	1759
adamc@311	1760 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1761 if (b == uw_Basis_False)
adamc@186	1762 return "0";
adamc@186	1763 else
adamc@186	1764 return "1";
adamc@186	1765 }
adamc@186	1766
adam@1620	1767 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1768 char *r;
adam@1620	1769 int len;
adam@1620	1770 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1771 r = ctx->heap.front;
adam@1620	1772 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1773 ctx->heap.front += len+1;
adam@1620	1774 return r;
adam@1620	1775 }
adam@1620	1776
adamc@311	1777 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1778 int len;
adamc@120	1779
adamc@666	1780 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1781 ctx->page.front += len;
adamc@120	1782 }
adamc@120	1783
adamc@428	1784 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1785 uw_check(ctx, INTS_MAX);
adamc@311	1786 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1787
adamc@428	1788 return uw_unit_v;
adamc@120	1789 }
adamc@120	1790
adamc@682	1791 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1792 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1793 int len;
adamc@682	1794
adamc@682	1795 uw_check(ctx, INTS_MAX + 1);
adamc@682	1796 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1797 ctx->page.front += len;
adamc@682	1798 }
adamc@682	1799
adamc@679	1800 return uw_unit_v;
adamc@679	1801 }
adamc@679	1802
adamc@428	1803 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1804 int len;
adamc@120	1805
adamc@311	1806 uw_check(ctx, FLOATS_MAX);
adamc@666	1807 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1808 ctx->page.front += len;
adamc@428	1809
adamc@428	1810 return uw_unit_v;
adamc@120	1811 }
adamc@120	1812
adamc@488	1813 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1814 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1815 }
adamc@488	1816
adam@1404	1817 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1818 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1819 }
adam@1404	1820
adamc@428	1821 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1822 if (s[0] == '\0') {
adamc@925	1823 uw_check(ctx, 1);
adamc@925	1824 uw_writec_unsafe(ctx, '_');
adamc@925	1825 return uw_unit_v;
adamc@925	1826 }
adamc@925	1827
adamc@925	1828 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1829
adamc@925	1830 if (s[0] == '_')
adamc@925	1831 uw_writec_unsafe(ctx, '_');
adamc@120	1832
adamc@120	1833 for (; *s; s++) {
adamc@1087	1834 unsigned char c = *s;
adamc@120	1835
adamc@120	1836 if (c == ' ')
adamc@311	1837 uw_writec_unsafe(ctx, '+');
adamc@120	1838 else if (isalnum(c))
adamc@311	1839 uw_writec_unsafe(ctx, c);
adamc@120	1840 else {
adamc@1259	1841 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1842 ctx->page.front += 3;
adamc@120	1843 }
adamc@120	1844 }
adamc@428	1845
adamc@428	1846 return uw_unit_v;
adamc@120	1847 }
adamc@120	1848
adamc@428	1849 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1850 if (b == uw_Basis_False)
adamc@311	1851 uw_writec(ctx, '0');
adamc@186	1852 else
adamc@311	1853 uw_writec(ctx, '1');
adamc@428	1854
adamc@428	1855 return uw_unit_v;
adamc@186	1856 }
adamc@186	1857
adam@1620	1858 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	1859 int len;
adam@1620	1860
adam@1620	1861 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	1862 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1863 ctx->page.front += len;
adam@1620	1864
adam@1620	1865 return uw_unit_v;
adam@1620	1866 }
adam@1620	1867
adamc@120	1868
adamc@311	1869 static char uw_unurlify_advance(char s) {
adamc@144	1870 char *new_s = strchr(s, '/');
adamc@120	1871
adamc@120	1872 if (new_s)
adamc@120	1873 *new_s++ = 0;
adamc@120	1874 else
adamc@144	1875 new_s = strchr(s, 0);
adamc@144	1876
adamc@144	1877 return new_s;
adamc@144	1878 }
adamc@144	1879
adamc@311	1880 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1881 char new_s = uw_unurlify_advance(s);
adamc@311	1882 uw_Basis_int r;
adamc@120	1883
adamc@276	1884 r = atoll(*s);
adamc@120	1885 *s = new_s;
adamc@120	1886 return r;
adamc@120	1887 }
adamc@120	1888
adamc@311	1889 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1890 char new_s = uw_unurlify_advance(s);
adamc@311	1891 uw_Basis_float r;
adamc@120	1892
adamc@120	1893 r = atof(*s);
adamc@120	1894 *s = new_s;
adamc@120	1895 return r;
adamc@120	1896 }
adamc@120	1897
adamc@488	1898 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	1899 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	1900 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	1901 return r;
adamc@488	1902 }
adamc@488	1903
adamc@1023	1904 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1905 char s1, s2 = s;
adamc@144	1906 int n;
adamc@136	1907
adamc@1023	1908 if (!fromClient) {
adamc@1023	1909 if (*s2 == '_')
adamc@1023	1910 ++s2;
adamc@1259	1911 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1912 s2 += 3;
adamc@1023	1913 }
adamc@925	1914
adamc@927	1915 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	1916 unsigned char c = *s2;
adamc@136	1917
adamc@136	1918 switch (c) {
adamc@136	1919 case '+':
adamc@136	1920 *s1 = ' ';
adamc@136	1921 break;
adamc@136	1922 case '%':
adamc@169	1923 if (s2[1] == 0)
adamc@311	1924 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1925 if (s2[2] == 0)
adamc@311	1926 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1927 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	1928 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	1929 *s1 = n;
adamc@136	1930 s2 += 2;
adamc@136	1931 break;
adamc@1259	1932 case '.':
adamc@1259	1933 if (!fromClient) {
adamc@1259	1934 if (s2[1] == 0)
adamc@1259	1935 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	1936 if (s2[2] == 0)
adamc@1259	1937 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	1938 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	1939 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	1940 *s1 = n;
adamc@1259	1941 s2 += 2;
adamc@1259	1942 break;
adamc@1259	1943 }
adamc@136	1944 default:
adamc@136	1945 *s1 = c;
adamc@136	1946 }
adamc@136	1947 }
adamc@136	1948 *s1++ = 0;
adamc@144	1949 return s1;
adamc@144	1950 }
adamc@144	1951
adamc@311	1952 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	1953 char new_s = uw_unurlify_advance(s);
adamc@311	1954 uw_Basis_bool r;
adamc@186	1955
adamc@186	1956 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	1957 r = uw_Basis_False;
adamc@186	1958 else
adamc@311	1959 r = uw_Basis_True;
adamc@186	1960
adamc@186	1961 *s = new_s;
adamc@186	1962 return r;
adamc@186	1963 }
adamc@186	1964
adamc@311	1965 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	1966 char new_s = uw_unurlify_advance(s);
adamc@1134	1967 char *r;
adamc@1134	1968 int len;
adamc@144	1969
adamc@200	1970 len = strlen(*s);
adamc@311	1971 uw_check_heap(ctx, len + 1);
adamc@144	1972
adamc@666	1973 r = ctx->heap.front;
adamc@1023	1974 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	1975 *s = new_s;
adamc@1023	1976 return r;
adamc@1023	1977 }
adamc@1023	1978
adamc@1109	1979 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	1980 s = uw_unurlify_advance(s);
adamc@1109	1981 return uw_unit_v;
adamc@1109	1982 }
adamc@1109	1983
adamc@1023	1984 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	1985 char new_s = uw_unurlify_advance(s);
adamc@1134	1986 char *r;
adamc@1134	1987 int len;
adamc@1023	1988
adamc@1023	1989 len = strlen(*s);
adamc@1023	1990 uw_check_heap(ctx, len + 1);
adamc@1023	1991
adamc@1023	1992 r = ctx->heap.front;
adamc@1023	1993 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	1994 *s = new_s;
adamc@136	1995 return r;
adamc@120	1996 }
adamc@135	1997
adamc@135	1998
adamc@311	1999 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2000 int len;
adamc@286	2001 char *r;
adamc@286	2002
adamc@311	2003 uw_check_heap(ctx, INTS_MAX);
adamc@666	2004 r = ctx->heap.front;
adamc@286	2005 sprintf(r, "%lld%n", n, &len);
adamc@666	2006 ctx->heap.front += len+1;
adamc@286	2007 return r;
adamc@286	2008 }
adamc@286	2009
adamc@428	2010 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2011 int len;
adamc@286	2012
adamc@311	2013 uw_check(ctx, INTS_MAX);
adamc@666	2014 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2015 ctx->page.front += len;
adamc@428	2016
adamc@428	2017 return uw_unit_v;
adamc@286	2018 }
adamc@286	2019
adam@1358	2020 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2021 unsigned int n = ch;
adam@1358	2022 int len;
adam@1358	2023 char *r;
adam@1358	2024
adam@1358	2025 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2026 r = ctx->heap.front;
adam@1358	2027 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2028 ctx->heap.front += len+1;
adam@1358	2029 return r;
adam@1358	2030 }
adam@1358	2031
adam@1358	2032 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2033 unsigned int n = ch;
adam@1358	2034 int len;
adam@1358	2035
adam@1358	2036 uw_check(ctx, INTS_MAX+3);
adam@1358	2037 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2038 ctx->page.front += len;
adam@1358	2039 return uw_unit_v;
adam@1358	2040 }
adam@1358	2041
adamc@311	2042 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2043 int len;
adamc@286	2044 char *r;
adamc@286	2045
adamc@311	2046 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2047 r = ctx->heap.front;
adamc@286	2048 sprintf(r, "%g%n", n, &len);
adamc@666	2049 ctx->heap.front += len+1;
adamc@286	2050 return r;
adamc@286	2051 }
adamc@286	2052
adamc@428	2053 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2054 int len;
adamc@286	2055
adamc@311	2056 uw_check(ctx, FLOATS_MAX);
adamc@666	2057 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2058 ctx->page.front += len;
adamc@428	2059
adamc@428	2060 return uw_unit_v;
adamc@286	2061 }
adamc@286	2062
adam@1365	2063 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2064 int len;
adam@1360	2065 char *r;
adam@1360	2066
adam@1360	2067 uw_check_heap(ctx, INTS_MAX);
adam@1360	2068 r = ctx->heap.front;
adamc@1377	2069 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2070 ctx->heap.front += len+1;
adam@1360	2071 return r;
adam@1360	2072 }
adam@1360	2073
adam@1365	2074 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2075 int len;
adam@1360	2076
adam@1360	2077 uw_check(ctx, INTS_MAX);
adam@1360	2078 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2079 ctx->page.front += len;
adam@1360	2080
adam@1360	2081 return uw_unit_v;
adam@1360	2082 }
adam@1360	2083
adam@1444	2084 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2085 char r, s2;
adamc@137	2086
adamc@311	2087 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2088
adamc@666	2089 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2090 unsigned char c = *s;
adamc@137	2091
adamc@137	2092 switch (c) {
adamc@137	2093 case '<':
adamc@137	2094 strcpy(s2, "<");
adamc@137	2095 s2 += 4;
adamc@137	2096 break;
adamc@137	2097 case '&':
adamc@137	2098 strcpy(s2, "&");
adamc@137	2099 s2 += 5;
adamc@137	2100 break;
adamc@137	2101 default:
adamc@1059	2102 *s2++ = c;
adamc@137	2103 }
adamc@137	2104 }
adamc@137	2105
adamc@137	2106 *s2++ = 0;
adamc@666	2107 ctx->heap.front = s2;
adamc@137	2108 return r;
adamc@135	2109 }
adamc@135	2110
adamc@428	2111 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2112 uw_check(ctx, strlen(s) * 6);
adamc@135	2113
adamc@135	2114 for (; *s; s++) {
adamc@1054	2115 unsigned char c = *s;
adamc@135	2116
adamc@135	2117 switch (c) {
adamc@135	2118 case '<':
adamc@311	2119 uw_write_unsafe(ctx, "<");
adamc@135	2120 break;
adamc@135	2121 case '&':
adamc@311	2122 uw_write_unsafe(ctx, "&");
adamc@135	2123 break;
adamc@135	2124 default:
adamc@1059	2125 uw_writec_unsafe(ctx, c);
adamc@135	2126 }
adamc@135	2127 }
adamc@428	2128
adamc@428	2129 return uw_unit_v;
adamc@135	2130 }
adamc@180	2131
adamc@311	2132 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2133 if (b == uw_Basis_False)
adamc@286	2134 return "False";
adamc@286	2135 else
adamc@286	2136 return "True";
adamc@286	2137 }
adamc@286	2138
adamc@428	2139 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2140 if (b == uw_Basis_False) {
adamc@311	2141 uw_check(ctx, 6);
adamc@666	2142 strcpy(ctx->page.front, "False");
adamc@666	2143 ctx->page.front += 5;
adamc@286	2144 } else {
adamc@311	2145 uw_check(ctx, 5);
adamc@666	2146 strcpy(ctx->page.front, "True");
adamc@666	2147 ctx->page.front += 4;
adamc@286	2148 }
adamc@428	2149
adamc@428	2150 return uw_unit_v;
adamc@286	2151 }
adamc@286	2152
adamc@436	2153 #define TIME_FMT "%x %X"
adamc@438	2154 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2155 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2156
adam@1629	2157 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2158
adamc@436	2159 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2160 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2161 }
adamc@436	2162
adamc@436	2163 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2164 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2165 }
adamc@436	2166
adam@1446	2167 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2168 int len;
adam@1446	2169 char *r;
adam@1446	2170
adam@1446	2171 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2172 r = ctx->heap.front;
adam@1446	2173 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2174 ctx->heap.front += len+1;
adam@1446	2175 return r;
adam@1446	2176 }
adam@1446	2177
adam@1446	2178 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2179 int len;
adam@1446	2180
adam@1446	2181 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2182 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2183 ctx->page.front += len;
adam@1446	2184
adam@1446	2185 return uw_unit_v;
adam@1446	2186 }
adam@1446	2187
adamc@821	2188 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2189 while (n >= 0) {
adam@1388	2190 if (*s == 0)
adam@1388	2191 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2192
adam@1388	2193 if (n == 0)
adam@1388	2194 return *s;
adam@1388	2195
adam@1388	2196 --n;
adam@1388	2197 ++s;
adam@1388	2198 }
adam@1388	2199
adam@1388	2200 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2201 }
adamc@821	2202
adamc@821	2203 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2204 while (n >= 0) {
adam@1388	2205 if (*s == 0 \|\| n == 0)
adam@1388	2206 return s;
adam@1388	2207
adam@1388	2208 --n;
adam@1388	2209 ++s;
adam@1388	2210 }
adam@1388	2211
adam@1388	2212 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2213 }
adamc@821	2214
adamc@828	2215 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2216 return strlen(s);
adamc@828	2217 }
adamc@828	2218
adam@1388	2219 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2220 while (n > 0) {
adam@1388	2221 if (*s == 0)
adam@1388	2222 return uw_Basis_False;
adam@1388	2223
adam@1388	2224 --n;
adam@1388	2225 ++s;
adam@1388	2226 }
adam@1388	2227
adam@1388	2228 return uw_Basis_True;
adam@1388	2229 }
adam@1388	2230
adamc@829	2231 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2232 return strchr(s, ch);
adamc@829	2233 }
adamc@829	2234
adamc@831	2235 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2236 return strcspn(s, chs);
adamc@831	2237 }
adamc@831	2238
adamc@829	2239 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2240 uw_Basis_string r = strchr(s, ch);
adamc@829	2241 if (r == NULL)
adamc@829	2242 return NULL;
adamc@829	2243 else {
adamc@829	2244 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2245 *nr = r - s;
adamc@829	2246 return nr;
adamc@829	2247 }
adamc@829	2248 }
adamc@829	2249
adam@1390	2250 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2251 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2252 if (r == NULL)
adam@1390	2253 return NULL;
adam@1390	2254 else {
adam@1390	2255 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2256 *nr = r - haystack;
adam@1390	2257 return nr;
adam@1390	2258 }
adam@1390	2259 }
adam@1390	2260
adamc@311	2261 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2262 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2263 char *s;
adamc@180	2264
adamc@311	2265 uw_check_heap(ctx, len);
adamc@180	2266
adamc@666	2267 s = ctx->heap.front;
adamc@180	2268
adamc@180	2269 strcpy(s, s1);
adamc@180	2270 strcat(s, s2);
adamc@666	2271 ctx->heap.front += len;
adamc@180	2272
adamc@180	2273 return s;
adamc@180	2274 }
adamc@278	2275
adamc@829	2276 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2277 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2278
adamc@829	2279 if (start < 0)
adamc@829	2280 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2281 if (len < 0)
adamc@829	2282 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2283 if (start + len > full_len)
adamc@829	2284 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2285
adamc@829	2286 if (start + len == full_len)
adamc@829	2287 return &s[start];
adamc@829	2288 else {
adamc@829	2289 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2290 memcpy(r, s+start, len);
adamc@829	2291 r[len] = 0;
adamc@829	2292 return r;
adamc@829	2293 }
adamc@829	2294
adamc@829	2295 }
adamc@829	2296
adamc@1023	2297 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2298 char *r;
adamc@1023	2299
adamc@1023	2300 uw_check_heap(ctx, 2);
adamc@1023	2301 r = ctx->heap.front;
adamc@1023	2302 r[0] = ch;
adamc@1023	2303 r[1] = 0;
adamc@1023	2304
adamc@1023	2305 ctx->heap.front += 2;
adamc@1023	2306
adamc@1023	2307 return r;
adamc@1023	2308 }
adamc@1023	2309
adamc@737	2310 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2311 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2312 char *s;
adamc@278	2313
adamc@311	2314 uw_check_heap(ctx, len);
adamc@278	2315
adamc@666	2316 s = ctx->heap.front;
adamc@278	2317
adamc@278	2318 strcpy(s, s1);
adamc@666	2319 ctx->heap.front += len;
adamc@278	2320
adamc@278	2321 return s;
adamc@278	2322 }
adamc@280	2323
adam@1295	2324 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2325 if (ctx->error_message[0]) {
adam@1295	2326 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2327 ctx->error_message[0] = 0;
adam@1295	2328 return s;
adam@1295	2329 } else
adam@1295	2330 return NULL;
adam@1295	2331 }
adam@1295	2332
adamc@737	2333 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2334 if (s1)
adamc@737	2335 return uw_strdup(ctx, s1);
adamc@493	2336 else
adamc@493	2337 return NULL;
adamc@493	2338 }
adamc@493	2339
adamc@742	2340 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2341 char *r = uw_malloc(ctx, len);
adamc@742	2342 memcpy(r, p, len);
adamc@742	2343 return r;
adamc@742	2344 }
adamc@280	2345
adamc@879	2346 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2347
adamc@311	2348 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2349 int len;
adamc@281	2350 char *r;
adamc@281	2351
adamc@311	2352 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2353 r = ctx->heap.front;
adamc@879	2354 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2355 ctx->heap.front += len+1;
adamc@281	2356 return r;
adamc@281	2357 }
adamc@281	2358
adamc@467	2359 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2360 if (n == NULL)
adamc@467	2361 return "NULL";
adamc@467	2362 else
adamc@467	2363 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2364 }
adamc@467	2365
adamc@879	2366 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879	2367
adamc@311	2368 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2369 int len;
adamc@281	2370 char *r;
adamc@281	2371
adamc@311	2372 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2373 r = ctx->heap.front;
adamc@879	2374 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2375 ctx->heap.front += len+1;
adamc@281	2376 return r;
adamc@281	2377 }
adamc@281	2378
adamc@467	2379 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2380 if (n == NULL)
adamc@467	2381 return "NULL";
adamc@467	2382 else
adamc@467	2383 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2384 }
adamc@467	2385
adamc@879	2386 int uw_Estrings = 1;
adamc@879	2387 char *uw_sqlsuffixString = "::text";
adamc@1011	2388 char *uw_sqlsuffixChar = "::char";
adamc@281	2389
adamc@311	2390 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2391 char r, s2;
adamc@280	2392
adamc@879	2393 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2394
adamc@666	2395 r = s2 = ctx->heap.front;
adamc@879	2396 if (uw_Estrings)
adamc@879	2397 *s2++ = 'E';
adamc@280	2398 *s2++ = '\'';
adamc@280	2399
adamc@280	2400 for (; *s; s++) {
adamc@280	2401 char c = *s;
adamc@280	2402
adamc@280	2403 switch (c) {
adamc@280	2404 case '\'':
adamc@885	2405 if (uw_Estrings)
adamc@885	2406 strcpy(s2, "\\'");
adamc@885	2407 else
adamc@885	2408 strcpy(s2, "''");
adamc@280	2409 s2 += 2;
adamc@280	2410 break;
adamc@280	2411 case '\\':
adamc@885	2412 if (uw_Estrings) {
adamc@885	2413 strcpy(s2, "\\\\");
adamc@885	2414 s2 += 2;
adamc@885	2415 } else
adamc@885	2416 *s2++ = '\\';
adamc@280	2417 break;
adamc@280	2418 default:
adamc@1150	2419 if (isprint((int)c))
adamc@280	2420 *s2++ = c;
adamc@879	2421 else if (uw_Estrings) {
adamc@737	2422 sprintf(s2, "\\%03o", c);
adamc@280	2423 s2 += 4;
adamc@280	2424 }
adamc@879	2425 else
adamc@879	2426 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280	2427 }
adamc@280	2428 }
adamc@280	2429
adamc@879	2430 *s2++ = '\'';
adamc@879	2431 strcpy(s2, uw_sqlsuffixString);
adamc@879	2432 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2433 return r;
adamc@280	2434 }
adamc@281	2435
adamc@1011	2436 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2437 char r, s2;
adamc@1011	2438
adamc@1011	2439 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2440
adamc@1011	2441 r = s2 = ctx->heap.front;
adamc@1011	2442 if (uw_Estrings)
adamc@1011	2443 *s2++ = 'E';
adamc@1011	2444 *s2++ = '\'';
adamc@1011	2445
adamc@1011	2446 switch (c) {
adamc@1011	2447 case '\'':
adamc@1011	2448 if (uw_Estrings)
adamc@1011	2449 strcpy(s2, "\\'");
adamc@1011	2450 else
adamc@1011	2451 strcpy(s2, "''");
adamc@1011	2452 s2 += 2;
adamc@1011	2453 break;
adamc@1011	2454 case '\\':
adamc@1011	2455 if (uw_Estrings) {
adamc@1011	2456 strcpy(s2, "\\\\");
adamc@1011	2457 s2 += 2;
adamc@1011	2458 } else
adamc@1011	2459 *s2++ = '\\';
adamc@1011	2460 break;
adamc@1011	2461 default:
adamc@1150	2462 if (isprint((int)c))
adamc@1011	2463 *s2++ = c;
adamc@1011	2464 else if (uw_Estrings) {
adamc@1011	2465 sprintf(s2, "\\%03o", c);
adamc@1011	2466 s2 += 4;
adamc@1011	2467 }
adamc@1011	2468 else
adamc@1011	2469 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2470 }
adamc@1011	2471
adamc@1011	2472 *s2++ = '\'';
adamc@1011	2473 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2474 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2475 return r;
adamc@1011	2476 }
adamc@1011	2477
adamc@879	2478 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2479
adamc@737	2480 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2481 char r, s2;
adamc@737	2482 size_t i;
adamc@737	2483
adamc@879	2484 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737	2485
adamc@737	2486 r = s2 = ctx->heap.front;
adamc@879	2487 if (uw_Estrings)
adamc@879	2488 *s2++ = 'E';
adamc@737	2489 *s2++ = '\'';
adamc@737	2490
adamc@737	2491 for (i = 0; i < b.size; ++i) {
adamc@737	2492 char c = b.data[i];
adamc@737	2493
adamc@737	2494 switch (c) {
adamc@737	2495 case '\'':
adamc@885	2496 if (uw_Estrings)
adamc@885	2497 strcpy(s2, "\\'");
adamc@885	2498 else
adamc@885	2499 strcpy(s2, "''");
adamc@737	2500 s2 += 2;
adamc@737	2501 break;
adamc@737	2502 case '\\':
adamc@885	2503 if (uw_Estrings) {
adamc@885	2504 strcpy(s2, "\\\\\\\\");
adamc@885	2505 s2 += 4;
adamc@885	2506 } else
adamc@885	2507 *s2++ = '\\';
adamc@737	2508 break;
adamc@737	2509 default:
adamc@1150	2510 if (isprint((int)c))
adamc@737	2511 *s2++ = c;
adamc@879	2512 else if (uw_Estrings) {
adamc@737	2513 sprintf(s2, "\\\\%03o", c);
adamc@737	2514 s2 += 5;
adamc@737	2515 }
adamc@879	2516 else
adamc@879	2517 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737	2518 }
adamc@737	2519 }
adamc@737	2520
adamc@879	2521 *s2++ = '\'';
adamc@879	2522 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2523 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2524 return r;
adamc@737	2525 }
adamc@737	2526
adamc@682	2527 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2528 int len;
adamc@682	2529 char *r;
adamc@682	2530 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2531
adamc@682	2532 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2533 r = ctx->heap.front;
adamc@879	2534 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2535 ctx->heap.front += len+1;
adamc@682	2536 return r;
adamc@682	2537 }
adamc@682	2538
adamc@682	2539 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2540 int len;
adamc@682	2541 char *r;
adamc@682	2542 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2543
adamc@682	2544 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2545 r = ctx->heap.front;
adamc@682	2546 sprintf(r, "%lld%n", combo, &len);
adamc@682	2547 ctx->heap.front += len+1;
adamc@682	2548 return r;
adamc@682	2549 }
adamc@682	2550
adamc@879	2551 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2552
adamc@682	2553 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2554 int len;
adamc@682	2555 char *r;
adamc@682	2556
adamc@682	2557 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2558 r = ctx->heap.front;
adamc@879	2559 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2560 ctx->heap.front += len+1;
adamc@682	2561 return r;
adamc@682	2562 }
adamc@682	2563
adamc@682	2564 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2565 int len;
adamc@682	2566 char *r;
adamc@682	2567
adamc@682	2568 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2569 r = ctx->heap.front;
adamc@682	2570 sprintf(r, "%u%n", cli, &len);
adamc@682	2571 ctx->heap.front += len+1;
adamc@682	2572 return r;
adamc@682	2573 }
adamc@682	2574
adamc@467	2575 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2576 if (s == NULL)
adamc@467	2577 return "NULL";
adamc@467	2578 else
adamc@467	2579 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2580 }
adamc@467	2581
adamc@311	2582 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2583 if (b == uw_Basis_False)
adamc@281	2584 return "FALSE";
adamc@281	2585 else
adamc@281	2586 return "TRUE";
adamc@281	2587 }
adamc@282	2588
adamc@467	2589 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2590 if (b == NULL)
adamc@467	2591 return "NULL";
adamc@467	2592 else
adamc@467	2593 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2594 }
adamc@467	2595
adamc@439	2596 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2597 size_t len;
adamc@682	2598 char r, s;
adam@1392	2599 struct tm stm = {};
adam@1392	2600 stm.tm_isdst = -1;
adamc@682	2601
adam@1365	2602 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2603 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2604 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1367	2605 if (t.microseconds) {
adam@1367	2606 r = uw_malloc(ctx, len + 21);
adam@1367	2607 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1367	2608 } else {
adam@1367	2609 r = uw_malloc(ctx, len + 14);
adam@1367	2610 sprintf(r, "'%s'::timestamp", s);
adam@1367	2611 }
adamc@682	2612 return r;
adamc@682	2613 } else
adamc@682	2614 return "<Invalid time>";
adamc@682	2615 }
adamc@682	2616
adamc@682	2617 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2618 size_t len;
adamc@439	2619 char *r;
adam@1392	2620 struct tm stm = {};
adam@1392	2621 stm.tm_isdst = -1;
adamc@439	2622
adam@1365	2623 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2624 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2625 r = ctx->heap.front;
adamc@439	2626 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2627 ctx->heap.front += len+1;
adamc@439	2628 return r;
adamc@439	2629 } else
adamc@439	2630 return "<Invalid time>";
adamc@439	2631 }
adamc@439	2632
adam@1364	2633 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2634 size_t len;
adam@1364	2635 char *r;
adam@1392	2636 struct tm stm = {};
adam@1392	2637 stm.tm_isdst = -1;
adam@1364	2638
adam@1365	2639 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2640 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2641 r = ctx->heap.front;
adam@1365	2642 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2643 ctx->heap.front += len;
adam@1365	2644 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2645 ctx->heap.front += 8;
adam@1364	2646 return r;
adam@1364	2647 } else
adam@1364	2648 return "<Invalid time>";
adam@1364	2649 }
adam@1364	2650
adamc@467	2651 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2652 if (t == NULL)
adamc@467	2653 return "NULL";
adamc@467	2654 else
adamc@467	2655 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2656 }
adamc@467	2657
adamc@311	2658 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2659 static uw_Basis_int true = 1;
adamc@311	2660 static uw_Basis_int false = 0;
adamc@282	2661
adamc@311	2662 if (b == uw_Basis_False)
adamc@282	2663 return (char *)&false;
adamc@282	2664 else
adamc@282	2665 return (char *)&true;
adamc@282	2666 }
adamc@284	2667
adamc@311	2668 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2669 int len;
adamc@284	2670 char *r;
adamc@284	2671
adamc@311	2672 uw_check_heap(ctx, INTS_MAX);
adamc@666	2673 r = ctx->heap.front;
adamc@284	2674 sprintf(r, "%lld%n", n, &len);
adamc@666	2675 ctx->heap.front += len+1;
adamc@284	2676 return r;
adamc@284	2677 }
adamc@285	2678
adamc@311	2679 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2680 int len;
adamc@285	2681 char *r;
adamc@285	2682
adamc@311	2683 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2684 r = ctx->heap.front;
adamc@285	2685 sprintf(r, "%g%n", n, &len);
adamc@666	2686 ctx->heap.front += len+1;
adamc@285	2687 return r;
adamc@285	2688 }
adamc@285	2689
adamc@821	2690 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2691 char *r = uw_malloc(ctx, 2);
adamc@821	2692 r[0] = ch;
adamc@821	2693 r[1] = 0;
adamc@821	2694 return r;
adamc@821	2695 }
adamc@821	2696
adamc@311	2697 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2698 if (b == uw_Basis_False)
adamc@285	2699 return "False";
adamc@285	2700 else
adamc@285	2701 return "True";
adamc@285	2702 }
adamc@288	2703
adam@1359	2704 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2705 size_t len;
adam@1352	2706 char *r;
adam@1392	2707 struct tm stm = {};
adam@1392	2708 stm.tm_isdst = -1;
adam@1352	2709
adam@1365	2710 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2711 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2712 r = ctx->heap.front;
adam@1352	2713 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2714 ctx->heap.front += len+1;
adam@1352	2715 return r;
adam@1352	2716 } else
adam@1352	2717 return "<Invalid time>";
adam@1352	2718 }
adam@1352	2719
adam@1629	2720 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2721 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2722 }
adam@1629	2723
adamc@311	2724 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2725 char *endptr;
adamc@311	2726 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2727
adamc@288	2728 if (s != '\0' && endptr == '\0') {
adamc@311	2729 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2730 *r = n;
adamc@288	2731 return r;
adamc@288	2732 } else
adamc@288	2733 return NULL;
adamc@288	2734 }
adamc@289	2735
adamc@311	2736 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2737 char *endptr;
adamc@311	2738 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2739
adamc@289	2740 if (s != '\0' && endptr == '\0') {
adamc@311	2741 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2742 *r = n;
adamc@289	2743 return r;
adamc@289	2744 } else
adamc@289	2745 return NULL;
adamc@289	2746 }
adamc@289	2747
adamc@821	2748 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2749 if (s[0] == 0) {
adamc@821	2750 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2751 r[0] = 0;
adamc@821	2752 return r;
adamc@821	2753 } else if (s[1] != 0)
adamc@821	2754 return NULL;
adamc@821	2755 else {
adamc@821	2756 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2757 r[0] = s[0];
adamc@821	2758 return r;
adamc@821	2759 }
adamc@821	2760 }
adamc@821	2761
adamc@311	2762 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2763 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2764 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2765
adamc@289	2766 if (!strcasecmp (s, "True"))
adamc@289	2767 return &true;
adamc@289	2768 else if (!strcasecmp (s, "False"))
adamc@289	2769 return &false;
adamc@289	2770 else
adamc@289	2771 return NULL;
adamc@289	2772 }
adamc@292	2773
adamc@436	2774 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2775 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2776 struct tm stm = {};
adam@1392	2777 stm.tm_isdst = -1;
adamc@436	2778
adamc@439	2779 if (dot) {
adamc@439	2780 *dot = 0;
adamc@439	2781 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2782 *dot = '.';
adamc@439	2783 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2784 r->seconds = mktime(&stm);
adam@1365	2785 r->microseconds = 0;
adamc@439	2786 return r;
adamc@439	2787 }
adamc@439	2788 else {
adamc@439	2789 *dot = '.';
adamc@439	2790 return NULL;
adamc@439	2791 }
adamc@436	2792 }
adamc@439	2793 else {
adamc@439	2794 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2795 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2796 r->seconds = mktime(&stm);
adam@1365	2797 r->microseconds = 0;
adamc@439	2798 return r;
adamc@439	2799 }
adamc@439	2800 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2801 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2802 r->seconds = mktime(&stm);
adam@1365	2803 r->microseconds = 0;
adamc@439	2804 return r;
adam@1632	2805 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2806 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2807 r->seconds = mktime(&stm);
adam@1632	2808 r->microseconds = 0;
adam@1632	2809 return r;
adamc@439	2810 }
adamc@439	2811 else
adamc@439	2812 return NULL;
adamc@439	2813 }
adamc@436	2814 }
adamc@436	2815
adam@1352	2816 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2817 char *end = strchr(s, 0);
adam@1374	2818 struct tm stm = {};
adam@1392	2819 stm.tm_isdst = -1;
adam@1352	2820
adam@1352	2821 if (strptime(s, fmt, &stm) == end) {
adam@1352	2822 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2823 r->seconds = mktime(&stm);
adam@1365	2824 r->microseconds = 0;
adam@1352	2825 return r;
adam@1352	2826 }
adam@1352	2827 else
adam@1352	2828 return NULL;
adam@1352	2829 }
adam@1352	2830
adamc@311	2831 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2832 char *endptr;
adamc@311	2833 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2834
adamc@292	2835 if (s != '\0' && endptr == '\0')
adamc@292	2836 return n;
adamc@292	2837 else
adam@1444	2838 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2839 }
adamc@293	2840
adamc@682	2841 #include <errno.h>
adamc@682	2842
adamc@678	2843 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2844 unsigned long long n;
adamc@682	2845
adamc@682	2846 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2847 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	2848 else {
adamc@682	2849 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2850 return ch;
adamc@682	2851 }
adamc@682	2852 }
adamc@682	2853
adamc@682	2854 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2855 char *endptr;
adamc@682	2856 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2857
adamc@678	2858 if (s != '\0' && endptr == '\0')
adamc@678	2859 return n;
adamc@678	2860 else
adam@1444	2861 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	2862 }
adamc@678	2863
adamc@311	2864 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2865 char *endptr;
adamc@311	2866 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2867
adamc@293	2868 if (s != '\0' && endptr == '\0')
adamc@293	2869 return n;
adamc@293	2870 else
adam@1444	2871 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2872 }
adamc@293	2873
adamc@821	2874 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2875 if (s[0] == 0)
adamc@821	2876 return 0;
adamc@821	2877 else if (s[1] != 0)
adam@1444	2878 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	2879 else
adamc@821	2880 return s[0];
adamc@821	2881 }
adamc@821	2882
adamc@311	2883 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2884 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2885 return uw_Basis_True;
adamc@296	2886 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2887 return uw_Basis_False;
adamc@293	2888 else
adam@1444	2889 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2890 }
adamc@436	2891
adam@1352	2892 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	2893 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	2894 struct tm stm = {};
adam@1392	2895 stm.tm_isdst = -1;
adam@1352	2896
adam@1352	2897 if (dot) {
adam@1352	2898 *dot = 0;
adam@1352	2899 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	2900 *dot = '.';
adam@1410	2901 char usec[] = "000000";
adam@1410	2902 int len = strlen(dot+1);
adam@1410	2903 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	2904 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	2905 return r;
adam@1352	2906 }
adam@1352	2907 else {
adam@1352	2908 *dot = '.';
adam@1444	2909 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	2910 }
adam@1352	2911 }
adam@1352	2912 else {
adam@1352	2913 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	2914 uw_Basis_time r = { mktime(&stm) };
adam@1365	2915 return r;
adam@1352	2916 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	2917 uw_Basis_time r = { mktime(&stm) };
adam@1365	2918 return r;
adam@1352	2919 } else
adam@1444	2920 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	2921 }
adam@1352	2922 }
adam@1352	2923
adamc@436	2924 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2925 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2926 struct tm stm = {};
adam@1392	2927 stm.tm_isdst = -1;
adamc@436	2928
adamc@438	2929 if (dot) {
adamc@438	2930 *dot = 0;
adamc@438	2931 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2932 *dot = '.';
adam@1365	2933 {
adam@1365	2934 uw_Basis_time r = { mktime(&stm) };
adam@1365	2935 return r;
adam@1365	2936 }
adamc@438	2937 }
adamc@438	2938 else {
adamc@438	2939 *dot = '.';
adam@1444	2940 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	2941 }
adamc@438	2942 }
adamc@438	2943 else {
adam@1365	2944 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	2945 uw_Basis_time r = { mktime(&stm) };
adam@1365	2946 return r;
adam@1365	2947 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	2948 uw_Basis_time r = { mktime(&stm) };
adam@1365	2949 return r;
adam@1632	2950 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2951 uw_Basis_time r = { mktime(&stm) };
adam@1632	2952 return r;
adam@1365	2953 } else
adam@1444	2954 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	2955 }
adamc@436	2956 }
adamc@457	2957
adam@1352	2958 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	2959 char *end = strchr(s, 0);
adamc@939	2960 struct tm stm = {};
adam@1392	2961 stm.tm_isdst = -1;
adamc@939	2962
adam@1365	2963 if (strptime(s, fmt, &stm) == end) {
adam@1365	2964 uw_Basis_time r = { mktime(&stm) };
adam@1365	2965 return r;
adam@1365	2966 } else
adam@1444	2967 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	2968 }
adamc@939	2969
adamc@742	2970 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	2971 char *r = ctx->heap.front;
adamc@742	2972 uw_Basis_blob b = {len, r};
adamc@742	2973
adamc@742	2974 uw_check_heap(ctx, len);
adamc@742	2975
adamc@742	2976 while (*s) {
adamc@742	2977 if (s[0] == '\\') {
adamc@742	2978 if (s[1] == '\\') {
adamc@742	2979 *r++ = '\\';
adamc@742	2980 s += 2;
adamc@1153	2981 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adamc@742	2982 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	2983 s += 4;
adamc@742	2984 }
adamc@742	2985 else {
adamc@742	2986 *r++ = '\\';
adamc@742	2987 ++s;
adamc@742	2988 }
adamc@742	2989 } else {
adamc@742	2990 *r++ = s[0];
adamc@742	2991 ++s;
adamc@742	2992 }
adamc@742	2993 }
adamc@742	2994
adamc@742	2995 b.size = r - ctx->heap.front;
adamc@742	2996 ctx->heap.front = r;
adamc@742	2997 return b;
adamc@742	2998 }
adamc@742	2999
adam@1402	3000 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3001
adamc@463	3002 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3003 int len = strlen(c);
adamc@854	3004 char *p = ctx->outHeaders.start;
adamc@474	3005
adamc@1134	3006 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3007 char *p2;
adamc@474	3008 p += 13;
adamc@474	3009 p2 = strchr(p, '=');
adamc@474	3010
adamc@474	3011 if (p2) {
adamc@474	3012 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3013
adamc@474	3014 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3015 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3016 return NULL;
adamc@1052	3017 else {
adamc@1052	3018 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3019 memcpy(ret, p2+1, sz);
adamc@1052	3020 ret[sz] = 0;
adamc@1052	3021 return ret;
adamc@1052	3022 }
adamc@474	3023 }
adamc@474	3024 }
adamc@474	3025 }
adamc@463	3026
adamc@1134	3027 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3028 char *p2;
adamc@1051	3029
adamc@854	3030 while (1) {
adamc@1051	3031 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3032 if ((p2 = strchr(p, ';'))) {
adamc@1051	3033 size_t n = p2 - (p + len);
adamc@1051	3034 char *r = uw_malloc(ctx, n);
adamc@1051	3035 memcpy(r, p + 1 + len, n-1);
adamc@1051	3036 r[n-1] = 0;
adamc@1051	3037 return r;
adamc@1051	3038 } else
adamc@1051	3039 return p + 1 + len;
adamc@1134	3040 } else if ((p = strchr(p, ';')))
adamc@854	3041 p += 2;
adamc@463	3042 else
adamc@463	3043 return NULL;
adamc@463	3044 }
adamc@463	3045 }
adamc@792	3046
adamc@792	3047 return NULL;
adamc@457	3048 }
adamc@462	3049
adamc@1050	3050 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	3051 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3052 uw_write_header(ctx, c);
adamc@462	3053 uw_write_header(ctx, "=");
adamc@462	3054 uw_write_header(ctx, v);
adamc@466	3055 uw_write_header(ctx, "; path=");
adamc@466	3056 uw_write_header(ctx, prefix);
adamc@1050	3057 if (expires) {
adamc@1050	3058 char formatted[30];
adam@1392	3059 struct tm tm = {};
adam@1392	3060 tm.tm_isdst = -1;
adamc@1050	3061
adam@1365	3062 gmtime_r(&expires->seconds, &tm);
adamc@1050	3063
adamc@1050	3064 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3065
adamc@1050	3066 uw_write_header(ctx, "; expires=");
adamc@1050	3067 uw_write_header(ctx, formatted);
adamc@1050	3068 }
adamc@1050	3069 if (secure)
adamc@1050	3070 uw_write_header(ctx, "; secure");
adamc@462	3071 uw_write_header(ctx, "\r\n");
adamc@462	3072
adamc@462	3073 return uw_unit_v;
adamc@462	3074 }
adamc@667	3075
adamc@1050	3076 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3077 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3078 uw_write_header(ctx, c);
adamc@1050	3079 uw_write_header(ctx, "=; path=");
adamc@1050	3080 uw_write_header(ctx, prefix);
adamc@1052	3081 uw_write_header(ctx, "; " THE_PAST "\r\n");
adamc@1050	3082
adamc@1050	3083 return uw_unit_v;
adamc@1050	3084 }
adamc@1050	3085
adamc@1113	3086 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3087
adamc@682	3088 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3089 unsigned i;
adamc@682	3090 delta *d;
adamc@671	3091
adamc@682	3092 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3093 if (ctx->deltas[i].client == client)
adamc@682	3094 return &ctx->deltas[i];
adamc@671	3095
adamc@682	3096 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3097 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3098 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3099
adamc@682	3100 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3101 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3102 }
adamc@671	3103
adamc@682	3104 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3105 d->client = client;
adam@1369	3106 uw_buffer_reset(&d->msgs);
adamc@682	3107 return d;
adamc@671	3108 }
adamc@671	3109
adamc@668	3110 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3111 if (ctx->client == NULL)
adamc@682	3112 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3113
adamc@682	3114 return new_channel(ctx->client);
adamc@668	3115 }
adamc@668	3116
adamc@668	3117 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3118 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3119 size_t len;
adamc@682	3120 int preLen;
adamc@682	3121 char pre[INTS_MAX + 2];
adamc@668	3122
adamc@682	3123 len = strlen(msg);
adamc@682	3124
adamc@682	3125 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3126
adam@1369	3127 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3128 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3129 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3130
adamc@671	3131 return uw_unit_v;
adamc@668	3132 }
adamc@671	3133
adam@1327	3134 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3135 int i;
adamc@1131	3136 cleanup *cl;
adamc@1131	3137
adamc@1131	3138 if (ctx->client)
adamc@1131	3139 release_client(ctx->client);
adamc@1131	3140
adamc@1131	3141 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3142 cl->func(cl->arg);
adamc@1131	3143
adamc@1131	3144 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3145
adamc@1131	3146 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3147 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3148 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3149
adamc@1131	3150 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3151 if (ctx->transactionals[i].free)
adam@1327	3152 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3153
adamc@1144	3154 return ctx->app ? ctx->app->db_rollback(ctx) : 0;
adamc@1131	3155 }
adamc@1131	3156
adamc@671	3157 void uw_commit(uw_context ctx) {
adamc@1104	3158 int i;
adamc@1104	3159
adamc@1131	3160 if (uw_has_error(ctx)) {
adam@1327	3161 uw_rollback(ctx, 0);
adamc@1131	3162 return;
adamc@1131	3163 }
adamc@1131	3164
adamc@1104	3165 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3166 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3167 if (ctx->transactionals[i].commit) {
adamc@1083	3168 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3169 if (uw_has_error(ctx)) {
adam@1327	3170 uw_rollback(ctx, 0);
adamc@1131	3171 return;
adamc@1131	3172 }
adamc@1131	3173 }
adamc@771	3174
adamc@1104	3175 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3176 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3177 if (ctx->transactionals[i].commit) {
adamc@1083	3178 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3179 if (uw_has_error(ctx)) {
adam@1327	3180 uw_rollback(ctx, 0);
adamc@1131	3181 return;
adamc@1131	3182 }
adamc@1131	3183 }
adamc@1131	3184
adamc@1131	3185 if (ctx->app->db_commit(ctx)) {
adamc@1131	3186 uw_set_error_message(ctx, "Error running SQL COMMIT");
adamc@1131	3187 return;
adamc@1131	3188 }
adamc@682	3189
adamc@682	3190 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3191 delta *d = &ctx->deltas[i];
adamc@682	3192 client *c = find_client(d->client);
adamc@682	3193
adam@1551	3194 assert (c != NULL);
adam@1551	3195 assert(c->mode == USED);
adamc@682	3196
adam@1447	3197 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3198 }
adamc@682	3199
adamc@682	3200 if (ctx->client)
adamc@685	3201 release_client(ctx->client);
adamc@771	3202
adamc@1104	3203 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3204 if (ctx->transactionals[i].free)
adam@1327	3205 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3206
adam@1413	3207 if (*ctx->page.front)
adam@1413	3208 uw_writec(ctx, 0);
adam@1413	3209
adamc@916	3210 // Splice script data into appropriate part of page
adamc@1065	3211 if (ctx->returning_indirectly \|\| ctx->script_header[0] == 0) {
adamc@995	3212 char *start = strstr(ctx->page.start, "<sc>");
adamc@995	3213 if (start) {
adam@1369	3214 memmove(start, start + 4, uw_buffer_used(&ctx->page) - (start - ctx->page.start) - 4);
adamc@995	3215 ctx->page.front -= 4;
adamc@995	3216 }
adam@1369	3217 } else if (uw_buffer_used(&ctx->script) == 0) {
adamc@916	3218 size_t len = strlen(ctx->script_header);
adamc@916	3219 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	3220 if (start) {
adam@1369	3221 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) - 4 + len);
adamc@917	3222 start = strstr(ctx->page.start, "<sc>");
adam@1369	3223 memmove(start + len, start + 4, uw_buffer_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	3224 ctx->page.front += len - 4;
adamc@916	3225 memcpy(start, ctx->script_header, len);
adamc@916	3226 }
adamc@916	3227 } else {
adam@1369	3228 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adamc@916	3229 size_t lenP = lenH + 40 + len;
adamc@916	3230 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	3231 if (start) {
adam@1369	3232 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) - 4 + lenP);
adamc@917	3233 start = strstr(ctx->page.start, "<sc>");
adam@1369	3234 memmove(start + lenP, start + 4, uw_buffer_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	3235 ctx->page.front += lenP - 4;
adamc@916	3236 memcpy(start, ctx->script_header, lenH);
adamc@916	3237 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916	3238 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916	3239 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916	3240 }
adamc@916	3241 }
adamc@671	3242 }
adamc@671	3243
adamc@683	3244
adamc@1113	3245 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3246
adamc@771	3247 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3248 uw_callback_with_retry free) {
adamc@771	3249 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3250 if (ctx->used_transactionals+1 > uw_transactionals_max)
adamc@1113	3251 uw_error(ctx, FATAL, "Exceeded limit on number of transactionals");
adamc@1084	3252 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3253 ++ctx->n_transactionals;
adamc@771	3254 }
adamc@771	3255
adamc@771	3256 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3257 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3258 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3259 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	3260 }
adamc@771	3261
adamc@683	3262
adamc@683	3263 // "Garbage collection"
adamc@683	3264
adamc@1121	3265 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3266 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3267
adamc@1121	3268 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3269 int r = setjmp(ctx->jmp_buf);
adamc@683	3270
adamc@1121	3271 if (r == 0)
adamc@1121	3272 uw_do_expunge(ctx, cli, data);
adamc@1121	3273 else
adamc@1121	3274 ctx->app->db_rollback(ctx);
adamc@1121	3275
adamc@1121	3276 uw_post_expunge(ctx, data);
adamc@683	3277
adamc@683	3278 return r;
adamc@683	3279 }
adamc@683	3280
adamc@683	3281 void uw_prune_clients(uw_context ctx) {
adamc@683	3282 client c, next, *prev = NULL;
adamc@683	3283 time_t cutoff;
adamc@683	3284
adamc@1094	3285 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3286
adamc@683	3287 pthread_mutex_lock(&clients_mutex);
adamc@683	3288
adamc@683	3289 for (c = clients_used; c; c = next) {
adamc@683	3290 next = c->next;
adamc@683	3291 pthread_mutex_lock(&c->lock);
adamc@685	3292 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3293 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3294 if (prev)
adamc@683	3295 prev->next = next;
adamc@683	3296 else
adamc@683	3297 clients_used = next;
adamc@684	3298 uw_reset(ctx);
adamc@683	3299 while (fk == UNLIMITED_RETRY) {
adamc@1121	3300 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3301 if (fk == UNLIMITED_RETRY)
adamc@684	3302 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3303 }
adamc@684	3304 if (fk == SUCCESS)
adamc@684	3305 free_client(c);
adamc@1121	3306 else
adamc@856	3307 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3308 }
adamc@683	3309 else
adamc@683	3310 prev = c;
adamc@683	3311 pthread_mutex_unlock(&c->lock);
adamc@683	3312 }
adamc@683	3313
adamc@683	3314 pthread_mutex_unlock(&clients_mutex);
adamc@683	3315 }
adamc@687	3316
adamc@687	3317 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3318 int r = setjmp(ctx->jmp_buf);
adamc@687	3319
adamc@687	3320 if (r == 0) {
adamc@1094	3321 if (ctx->app->db_begin(ctx))
adamc@687	3322 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@1094	3323 ctx->app->initializer(ctx);
adamc@1094	3324 if (ctx->app->db_commit(ctx))
adamc@687	3325 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3326 }
adamc@687	3327
adamc@687	3328 return r;
adamc@687	3329 }
adamc@717	3330
adamc@1065	3331 static int url_bad(uw_Basis_string s) {
adamc@1065	3332 for (; *s; ++s)
adamc@1153	3333 if (!isgraph((int)*s))
adamc@1065	3334 return 1;
adamc@1065	3335
adamc@1065	3336 return 0;
adamc@1065	3337 }
adamc@1065	3338
adamc@717	3339 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3340 if (url_bad(s))
adamc@1065	3341 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3342 if (ctx->app->check_url(s))
adamc@770	3343 return s;
adamc@770	3344 else
adamc@770	3345 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3346 }
adamc@734	3347
adamc@770	3348 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3349 if (url_bad(s))
adamc@1065	3350 return NULL;
adamc@1094	3351 if (ctx->app->check_url(s))
adamc@770	3352 return s;
adamc@770	3353 else
adamc@770	3354 return NULL;
adamc@770	3355 }
adamc@770	3356
adam@1465	3357 static int mime_format(const char *s) {
adamc@770	3358 for (; *s; ++s)
adamc@1153	3359 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.')
adamc@770	3360 return 0;
adamc@770	3361
adamc@770	3362 return 1;
adamc@770	3363 }
adamc@770	3364
adamc@741	3365 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3366 if (!mime_format(s))
adamc@770	3367 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3368
adamc@1094	3369 if (ctx->app->check_mime(s))
adamc@770	3370 return s;
adamc@770	3371 else
adamc@770	3372 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3373 }
adamc@770	3374
adamc@770	3375 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3376 if (!mime_format(s))
adamc@770	3377 return NULL;
adamc@770	3378
adamc@1094	3379 if (ctx->app->check_mime(s))
adamc@770	3380 return s;
adamc@770	3381 else
adamc@770	3382 return NULL;
adamc@741	3383 }
adamc@741	3384
adam@1465	3385 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3386 if (!mime_format(s))
adam@1465	3387 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3388
adam@1465	3389 if (ctx->app->check_requestHeader(s))
adam@1465	3390 return s;
adam@1465	3391 else
adam@1465	3392 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3393 }
adam@1465	3394
adam@1465	3395 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3396 if (!mime_format(s))
adam@1465	3397 return NULL;
adam@1465	3398
adam@1465	3399 if (ctx->app->check_requestHeader(s))
adam@1465	3400 return s;
adam@1465	3401 else
adam@1465	3402 return NULL;
adam@1465	3403 }
adam@1465	3404
adam@1465	3405 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3406 if (!mime_format(s))
adam@1465	3407 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3408
adam@1465	3409 if (ctx->app->check_responseHeader(s))
adam@1465	3410 return s;
adam@1465	3411 else
adam@1465	3412 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3413 }
adam@1465	3414
adam@1465	3415 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3416 if (!mime_format(s))
adam@1465	3417 return NULL;
adam@1465	3418
adam@1465	3419 if (ctx->app->check_responseHeader(s))
adam@1465	3420 return s;
adam@1465	3421 else
adam@1465	3422 return NULL;
adam@1465	3423 }
adam@1465	3424
adam@1465	3425 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3426 return uw_Basis_requestHeader(ctx, name);
adam@1465	3427 }
adam@1465	3428
adam@1465	3429 static int mime_value_format(const char *s) {
adam@1465	3430 for (; *s; ++s)
adam@1465	3431 if (s == '\r' \|\| s == '\n')
adam@1465	3432 return 0;
adam@1465	3433
adam@1465	3434 return 1;
adam@1465	3435 }
adam@1465	3436
adam@1465	3437 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3438 if (!mime_value_format(value))
adam@1465	3439 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3440
adam@1465	3441 uw_write_header(ctx, name);
adam@1465	3442 uw_write_header(ctx, ": ");
adam@1465	3443 uw_write_header(ctx, value);
adam@1465	3444 uw_write_header(ctx, "\r\n");
adam@1465	3445
adam@1465	3446 return uw_unit_v;
adam@1465	3447 }
adam@1465	3448
adamc@734	3449 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3450 return s ? s : "";
adamc@734	3451 }
adamc@734	3452
adamc@734	3453 extern int uw_hash_blocksize;
adamc@734	3454
adamc@734	3455 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3456 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3457 int i;
adamc@734	3458
adamc@734	3459 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3460 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3461
adamc@734	3462 return r;
adamc@734	3463 }
adamc@734	3464
adam@1512	3465 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3466 * optimizations that would enable timing attacks. See:
adam@1512	3467 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3468 */
adam@1512	3469 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3470 int i, x = 0, len1 = strlen(s1);
adam@1512	3471
adam@1512	3472 if (len1 != strlen(s2)) return 0;
adam@1512	3473
adam@1512	3474 for (i = 0; i < len1; ++i) {
adam@1512	3475 __asm__ __volatile__ ("");
adam@1512	3476 x \|= s1[i] ^ s2[i];
adam@1512	3477 }
adam@1512	3478
adam@1512	3479 return x == 0;
adam@1512	3480 }
adam@1512	3481
adamc@734	3482 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@1094	3483 return ctx->app->cookie_sig(ctx);
adamc@734	3484 }
adamc@737	3485
adamc@737	3486 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3487 return f.name;
adamc@737	3488 }
adamc@737	3489
adamc@740	3490 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3491 return f.type;
adamc@740	3492 }
adamc@740	3493
adamc@745	3494 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3495 return b.size;
adamc@745	3496 }
adamc@745	3497
adamc@1119	3498 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3499 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3500
adamc@1119	3501 return b;
adamc@1119	3502 }
adamc@1119	3503
adamc@737	3504 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3505 return f.data;
adamc@737	3506 }
adamc@741	3507
adam@1347	3508 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3509 return pb.type;
adam@1347	3510 }
adam@1347	3511
adam@1347	3512 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3513 return pb.data;
adam@1347	3514 }
adam@1347	3515
adam@1471	3516 static char *old_headers(uw_context ctx) {
adam@1471	3517 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3518 return NULL;
adam@1471	3519 else {
adam@1471	3520 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3521
adam@1471	3522 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3523 return NULL;
adam@1471	3524 else {
adam@1471	3525 s = strchr(s+15, '\n');
adam@1471	3526 if (s == NULL)
adam@1471	3527 return NULL;
adam@1471	3528 else
adam@1471	3529 return uw_strdup(ctx, s+1);
adam@1471	3530 }
adam@1471	3531 }
adam@1471	3532 }
adam@1471	3533
adamc@741	3534 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3535 cleanup *cl;
adamc@741	3536 int len;
adam@1471	3537 char *oldh;
adamc@741	3538
adam@1451	3539 if (!ctx->allowed_to_return_indirectly)
adam@1451	3540 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3541
adamc@1065	3542 ctx->returning_indirectly = 1;
adam@1471	3543 oldh = old_headers(ctx);
adam@1369	3544 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3545 uw_buffer_reset(&ctx->page);
adamc@741	3546
adamc@856	3547 uw_write_header(ctx, on_success);
adamc@856	3548 uw_write_header(ctx, "Content-Type: ");
adamc@741	3549 uw_write_header(ctx, mimeType);
adamc@741	3550 uw_write_header(ctx, "\r\nContent-Length: ");
adam@1369	3551 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3552 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3553 ctx->outHeaders.front += len;
adamc@1066	3554 uw_write_header(ctx, "\r\n");
adam@1471	3555 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3556
adam@1369	3557 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3558
adamc@741	3559 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3560 cl->func(cl->arg);
adamc@741	3561
adamc@741	3562 ctx->cleanup_front = ctx->cleanup;
adamc@741	3563
adamc@1065	3564 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3565 }
adamc@1065	3566
adamc@1065	3567 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3568 cleanup *cl;
adamc@1066	3569 char *s;
adam@1471	3570 char *oldh;
adamc@1065	3571
adam@1451	3572 if (!ctx->allowed_to_return_indirectly)
adam@1451	3573 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3574
adamc@1065	3575 ctx->returning_indirectly = 1;
adam@1471	3576 oldh = old_headers(ctx);
adam@1369	3577 uw_buffer_reset(&ctx->page);
adam@1369	3578 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3579 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3580 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3581 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3582
adam@1409	3583 if (on_success[0])
adam@1409	3584 uw_write_header(ctx, on_redirect);
adam@1409	3585 else
adam@1409	3586 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3587 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3588 if (s) {
adamc@1066	3589 char *s2;
adam@1409	3590 if (s[0] == '\n') ++s;
adam@1409	3591 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3592 *s2 = 0;
adamc@1066	3593 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3594 uw_write_header(ctx, s);
adamc@1066	3595 uw_write_header(ctx, "\n");
adamc@1066	3596 }
adamc@1066	3597 }
adamc@1066	3598 }
adamc@1066	3599
adamc@1065	3600 uw_write_header(ctx, "Location: ");
adamc@1065	3601 uw_write_header(ctx, url);
adamc@1065	3602 uw_write_header(ctx, "\r\n\r\n");
adam@1471	3603 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	3604
adamc@1065	3605 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3606 cl->func(cl->arg);
adamc@1065	3607
adamc@1065	3608 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3609
adamc@1065	3610 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3611 }
adamc@874	3612
adamc@874	3613 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	3614 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	3615
adamc@874	3616 for (; *s; ++s) {
adamc@874	3617 if (s[0] == '\'') {
adamc@874	3618 *r++ = '\'';
adamc@874	3619 for (++s; *s; ++s) {
adamc@874	3620 if (s[0] == '\'') {
adamc@874	3621 *r++ = '\'';
adamc@874	3622 break;
adamc@874	3623 } else if (s[0] == '\\') {
adam@1467	3624 *r++ = '\\';
adam@1467	3625 *r++ = s[1];
adam@1467	3626 ++s;
adamc@874	3627 } else
adamc@874	3628 *r++ = s[0];
adamc@874	3629 }
adamc@874	3630 if (*s == 0) break;
adam@1467	3631 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	3632 s += 3;
adamc@874	3633 else
adamc@874	3634 *r++ = s[0];
adamc@874	3635 }
adamc@874	3636
adam@1467	3637 *r = 0;
adam@1467	3638 return ret;
adamc@874	3639 }
adamc@874	3640
adamc@922	3641 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3642 va_list ap;
adamc@922	3643 size_t len = 1;
adamc@922	3644 char s, r, *s2;
adamc@922	3645
adamc@922	3646 va_start(ap, ctx);
adamc@922	3647 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3648 len += strlen(s);
adamc@922	3649 va_end(ap);
adamc@922	3650
adamc@922	3651 r = uw_malloc(ctx, len);
adamc@922	3652 va_start(ap, ctx);
adamc@922	3653 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3654 while (*s)
adamc@922	3655 s2++ = s++;
adamc@922	3656 va_end(ap);
adamc@922	3657 *s2 = 0;
adamc@922	3658
adamc@922	3659 return r;
adamc@922	3660 }
adamc@1006	3661
adam@1365	3662 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	3663
adamc@1006	3664 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	3665 uw_Basis_time r = { time(NULL) };
adam@1365	3666 return r;
adamc@1006	3667 }
adamc@1061	3668
adam@1369	3669 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	3670 tm.seconds += n;
adam@1365	3671 return tm;
adamc@1138	3672 }
adamc@1138	3673
adam@1514	3674 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	3675 return difftime(tm2.seconds, tm1.seconds);
adam@1514	3676 }
adam@1514	3677
adam@1514	3678 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	3679 return tm.seconds;
adam@1514	3680 }
adam@1514	3681
adamc@1061	3682 void uw_get_global(uw_context ctx, char name) {
adamc@1061	3683 int i;
adamc@1061	3684
adamc@1061	3685 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3686 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	3687 return ctx->globals[i].data;
adamc@1061	3688
adamc@1061	3689 return NULL;
adamc@1061	3690 }
adamc@1061	3691
adamc@1113	3692 size_t uw_globals_max = SIZE_MAX;
adamc@1113	3693
adamc@1061	3694 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	3695 int i;
adamc@1061	3696
adamc@1061	3697 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3698 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	3699 if (ctx->globals[i].free)
adamc@1061	3700 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	3701 ctx->globals[i].data = data;
adamc@1061	3702 ctx->globals[i].free = free;
adamc@1061	3703 return;
adamc@1061	3704 }
adamc@1089	3705
adamc@1113	3706 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	3707 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	3708
adamc@1061	3709 ++ctx->n_globals;
adamc@1061	3710 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	3711 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	3712 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	3713 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	3714 }
adamc@1061	3715
adamc@1061	3716 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	3717 return !!isalnum((int)c);
adamc@1061	3718 }
adamc@1061	3719
adamc@1061	3720 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	3721 return !!isalpha((int)c);
adamc@1061	3722 }
adamc@1061	3723
adamc@1061	3724 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	3725 return !!isblank((int)c);
adamc@1061	3726 }
adamc@1061	3727
adamc@1061	3728 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	3729 return !!iscntrl((int)c);
adamc@1061	3730 }
adamc@1061	3731
adamc@1061	3732 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3733 return !!isdigit((int)c);
adamc@1061	3734 }
adamc@1061	3735
adamc@1061	3736 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	3737 return !!isgraph((int)c);
adamc@1061	3738 }
adamc@1061	3739
adamc@1061	3740 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3741 return !!islower((int)c);
adamc@1061	3742 }
adamc@1061	3743
adamc@1061	3744 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	3745 return !!isprint((int)c);
adamc@1061	3746 }
adamc@1061	3747
adamc@1061	3748 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	3749 return !!ispunct((int)c);
adamc@1061	3750 }
adamc@1061	3751
adamc@1061	3752 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	3753 return !!isspace((int)c);
adamc@1061	3754 }
adamc@1063	3755
adamc@1061	3756 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3757 return !!isupper((int)c);
adamc@1061	3758 }
adamc@1061	3759
adamc@1061	3760 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3761 return !!isxdigit((int)c);
adamc@1061	3762 }
adamc@1061	3763
adamc@1061	3764 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3765 return tolower((int)c);
adamc@1061	3766 }
adamc@1061	3767
adamc@1061	3768 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3769 return toupper((int)c);
adamc@1061	3770 }
adamc@1066	3771
adamc@1128	3772 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	3773 return (unsigned char)c;
adamc@1128	3774 }
adamc@1128	3775
adamc@1128	3776 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	3777 return n;
adamc@1128	3778 }
adamc@1128	3779
adamc@1066	3780 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	3781 return ctx->current_url;
adamc@1066	3782 }
adamc@1066	3783
adamc@1066	3784 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	3785 ctx->current_url = s;
adamc@1066	3786 }
adamc@1114	3787
adamc@1114	3788 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	3789 ctx->deadline = n;
adamc@1114	3790 }
adamc@1114	3791
adamc@1114	3792 void uw_check_deadline(uw_context ctx) {
adamc@1114	3793 if (uw_time > ctx->deadline)
adamc@1114	3794 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	3795 }
adamc@1115	3796
adamc@1115	3797 size_t uw_database_max = SIZE_MAX;
adamc@1120	3798
adam@1389	3799 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@1389	3800 fprintf(stderr, "%s\n", s);
adam@1389	3801 return 0;
adam@1389	3802 }
adam@1389	3803
adamc@1120	3804 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
adam@1334	3805 if (ctx->log_debug)
adam@1334	3806 ctx->log_debug(ctx->logger_data, "%s\n", s);
adam@1334	3807 else
adam@1334	3808 fprintf(stderr, "%s\n", s);
adamc@1120	3809 return uw_unit_v;
adamc@1120	3810 }
adamc@1250	3811
adamc@1250	3812 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@1486	3813 uw_Basis_int ret;
adam@1486	3814 int r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@1486	3815
adam@1486	3816 if (r)
adam@1486	3817 return abs(ret);
adam@1486	3818 else
adam@1486	3819 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	3820 }
adam@1347	3821
adam@1347	3822 void uw_noPostBody(uw_context ctx) {
adam@1347	3823 ctx->hasPostBody = 0;
adam@1347	3824 }
adam@1347	3825
adam@1347	3826 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3827 ctx->hasPostBody = 1;
adam@1347	3828 ctx->postBody = pb;
adam@1347	3829 }
adam@1347	3830
adam@1347	3831 int uw_hasPostBody(uw_context ctx) {
adam@1347	3832 return ctx->hasPostBody;
adam@1347	3833 }
adam@1347	3834
adam@1386	3835 void uw_isPost(uw_context ctx) {
adam@1386	3836 ctx->isPost = 1;
adam@1386	3837 }
adam@1386	3838
adam@1386	3839 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	3840 return ctx->isPost;
adam@1386	3841 }
adam@1386	3842
adam@1485	3843 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	3844 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	3845 }
adam@1485	3846
adam@1370	3847 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	3848 ctx->queryString = s;
adam@1370	3849 }
adam@1370	3850
adam@1370	3851 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	3852 return ctx->queryString;
adam@1370	3853 }
adam@1370	3854
adam@1347	3855 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	3856 if (ctx->hasPostBody)
adam@1347	3857 return ctx->postBody;
adam@1347	3858 else
adam@1347	3859 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	3860 }
adam@1349	3861
adam@1349	3862 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	3863 int r = setjmp(ctx->jmp_buf);
adam@1349	3864
adam@1349	3865 if (r == 0) {
adam@1418	3866 if (ctx->app->db_begin(ctx))
adam@1418	3867 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1418	3868
adam@1349	3869 callback(ctx);
adam@1349	3870 }
adam@1349	3871
adam@1349	3872 return r;
adam@1349	3873 }
adam@1360	3874
adam@1360	3875 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	3876 char buf[14];
adam@1397	3877 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	3878 }
adam@1365	3879
adam@1365	3880 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	3881 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	3882 }
adam@1365	3883
adam@1365	3884 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	3885 return !!(t1.seconds < t2.seconds \|\| t1.microseconds < t2.microseconds);
adam@1365	3886 }
adam@1365	3887
adam@1365	3888 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	3889 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	3890 }
adam@1365	3891
adam@1372	3892 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	3893 struct tm stm = {};
adam@1375	3894 char *end = strchr(s, 0);
adam@1449	3895 stm.tm_isdst = -1;
adam@1375	3896
adam@1632	3897 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	3898 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	3899
kkallio@1448	3900 r->seconds = timegm(&stm);
adam@1373	3901 r->microseconds = 0;
adam@1373	3902
adam@1373	3903 return r;
adam@1374	3904 }
adam@1374	3905 else
adam@1373	3906 return NULL;
adam@1372	3907 }
adam@1407	3908
adam@1407	3909 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	3910
adam@1407	3911 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	3912 int r = setjmp(ctx->jmp_buf);
adam@1407	3913
adam@1407	3914 if (ctx->app->on_error) {
adam@1407	3915 if (r == 0) {
adam@1407	3916 if (ctx->app->db_begin(ctx))
adam@1407	3917 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1407	3918
adam@1409	3919 uw_buffer_reset(&ctx->outHeaders);
adam@1409	3920 if (on_success[0])
adam@1409	3921 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	3922 else
adam@1409	3923 uw_write_header(ctx, "Status: ");
adam@1409	3924 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1407	3925 uw_write_header(ctx, "Content-type: text/html\r\n\r\n");
adam@1407	3926 uw_write(ctx, begin_xhtml);
adam@1407	3927 ctx->app->on_error(ctx, msg);
adam@1407	3928 uw_write(ctx, "</html>");
adam@1407	3929 }
adam@1407	3930
adam@1407	3931 return r;
adam@1407	3932 } else
adam@1407	3933 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	3934 }
adam@1451	3935
adam@1451	3936 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	3937 ctx->allowed_to_return_indirectly = 1;
adam@1451	3938 }
adam@1483	3939
adam@1483	3940 void uw_cutErrorLocation(char *s) {
adam@1483	3941 char *s2;
adam@1483	3942
adam@1483	3943 s2 = strstr(s, ": ");
adam@1483	3944 if (s2 == NULL \|\| strcspn(s, "<&") < s2 - s)
adam@1483	3945 return;
adam@1483	3946
adam@1483	3947 memmove(s, s2+2, strlen(s2+2)+1);
adam@1483	3948 }
adam@1556	3949
adam@1556	3950 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1556	3951 return uw_Basis_htmlifyInt(ctx, ctx->nextId++);
adam@1556	3952 }
adam@1571	3953
adam@1571	3954 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	3955 return n;
adam@1571	3956 }
adam@1571	3957
adam@1571	3958 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	3959 return ceil(n);
adam@1571	3960 }
adam@1571	3961
adam@1571	3962 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	3963 return trunc(n);
adam@1571	3964 }
adam@1571	3965
adam@1571	3966 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	3967 return round(n);
adam@1571	3968 }

Mercurial > urweb

annotate src/c/urweb.c @ 1671:a54d223c3a7f