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

annotate src/c/urweb.c @ 1729:6817ddd6cf1f

Avoid generating empty <script> tags

author	Adam Chlipala <adam@chlipala.net>
date	Fri, 27 Apr 2012 09:52:16 -0400
parents	95d3b4f26f59
children	e9587120831a

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
adam@1707	162 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@1113	163 size_t uw_messages_max = SIZE_MAX;
adamc@1113	164 size_t uw_clients_max = SIZE_MAX;
adamc@1113	165
adamc@1121	166 void *uw_init_client_data();
adamc@1121	167 void uw_free_client_data(void *);
adamc@1121	168 void uw_copy_client_data(void dst, void src);
adamc@1121	169
adamc@682	170 static client *new_client() {
adamc@667	171 client *c;
adamc@667	172
adamc@667	173 pthread_mutex_lock(&clients_mutex);
adamc@667	174
adamc@667	175 if (clients_free) {
adamc@667	176 c = clients_free;
adamc@682	177 clients_free = clients_free->next;
adamc@667	178 }
adam@1672	179 else if (n_clients >= uw_clients_max) {
adam@1672	180 pthread_mutex_unlock(&clients_mutex);
adamc@1113	181 return NULL;
adam@1672	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";
adam@1707	227 static pthread_t pruning_thread;
adam@1707	228 static int pruning_thread_initialized = 0;
adamc@667	229
adamc@682	230 static client *find_client(unsigned id) {
adamc@667	231 client *c;
adam@1708	232 int i_am_pruner = pruning_thread_initialized && pthread_equal(pruning_thread, pthread_self());
adam@1708	233
adam@1708	234 if (!i_am_pruner) pthread_mutex_lock(&clients_mutex);
adamc@667	235
adamc@667	236 if (id >= n_clients) {
adam@1708	237 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	238 return NULL;
adamc@667	239 }
adamc@667	240
adamc@667	241 c = clients[id];
adamc@667	242
adam@1708	243 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	244 return c;
adamc@668	245 }
adamc@668	246
adamc@856	247 static char *on_success = "HTTP/1.1 200 OK\r\n";
adam@1409	248 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	249
adamc@856	250 void uw_set_on_success(char *s) {
adamc@856	251 on_success = s;
adamc@856	252 }
adamc@856	253
adam@1552	254 static void chastise(int (send)(int sockfd, const void buf, ssize_t len), int sock) {
adam@1552	255 send(sock, on_success, strlen(on_success));
adam@1552	256 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1552	257 send(sock, "R", 1);
adam@1552	258 close(sock);
adam@1552	259 }
adam@1552	260
adamc@863	261 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	262 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	263 int (*close)(int fd),
adamc@864	264 void *logger_data, uw_logger log_error) {
adamc@682	265 client *c = find_client(id);
adamc@668	266
adamc@668	267 if (c == NULL) {
adam@1552	268 chastise(send, sock);
adamc@864	269 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	270 return;
adamc@667	271 }
adamc@667	272
adamc@682	273 pthread_mutex_lock(&c->lock);
adamc@671	274
adamc@682	275 if (c->mode != USED) {
adamc@682	276 pthread_mutex_unlock(&c->lock);
adam@1552	277 chastise(send, sock);
adamc@864	278 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	279 return;
adamc@667	280 }
adamc@667	281
adamc@682	282 if (pass != c->pass) {
adamc@682	283 pthread_mutex_unlock(&c->lock);
adam@1552	284 chastise(send, sock);
adamc@864	285 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	286 return;
adamc@667	287 }
adamc@667	288
adamc@682	289 if (c->sock != -1) {
adamc@863	290 c->close(c->sock);
adamc@682	291 c->sock = -1;
adamc@682	292 }
adamc@667	293
adamc@682	294 c->last_contact = time(NULL);
adamc@682	295
adam@1369	296 if (uw_buffer_used(&c->msgs) > 0) {
adamc@863	297 send(sock, on_success, strlen(on_success));
adamc@863	298 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1369	299 send(sock, c->msgs.start, uw_buffer_used(&c->msgs));
adam@1369	300 uw_buffer_reset(&c->msgs);
adamc@667	301 close(sock);
adamc@667	302 }
adamc@863	303 else {
adamc@682	304 c->sock = sock;
adamc@863	305 c->send = send;
adamc@863	306 c->close = close;
adamc@863	307 }
adamc@667	308
adamc@682	309 pthread_mutex_unlock(&c->lock);
adamc@667	310 }
adamc@667	311
adamc@682	312 static void free_client(client *c) {
adamc@682	313 c->mode = UNUSED;
adamc@682	314 c->pass = -1;
adamc@667	315
adamc@682	316 c->next = clients_free;
adamc@682	317 clients_free = c;
adamc@667	318 }
adamc@667	319
adamc@682	320 static uw_Basis_channel new_channel(client *c) {
adamc@682	321 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	322 return ch;
adamc@668	323 }
adamc@668	324
adam@1447	325 static void client_send(client c, uw_buffer msg, const char *script, int script_len) {
adamc@685	326 pthread_mutex_lock(&c->lock);
adamc@671	327
adamc@682	328 if (c->sock != -1) {
adamc@863	329 c->send(c->sock, on_success, strlen(on_success));
adamc@863	330 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1447	331 if (script_len > 0) {
adam@1447	332 c->send(c->sock, "E\n", 2);
adam@1447	333 c->send(c->sock, script, script_len);
adam@1447	334 c->send(c->sock, "\n", 1);
adam@1447	335 }
adam@1369	336 c->send(c->sock, msg->start, uw_buffer_used(msg));
adamc@863	337 c->close(c->sock);
adamc@682	338 c->sock = -1;
adam@1665	339 } else if (uw_buffer_append(&c->msgs, msg->start, uw_buffer_used(msg)))
adamc@1113	340 fprintf(stderr, "Client message buffer size exceeded");
adamc@671	341
adamc@685	342 pthread_mutex_unlock(&c->lock);
adamc@668	343 }
adamc@668	344
adamc@668	345
adamc@668	346 // Global entry points
adamc@668	347
adamc@1164	348 extern void uw_global_custom();
adamc@1104	349 extern void uw_init_crypto();
adamc@1104	350
adamc@668	351 void uw_global_init() {
adamc@668	352 srand(time(NULL) ^ getpid());
adamc@668	353
adamc@668	354 clients = malloc(0);
adamc@1104	355
adamc@1164	356 uw_global_custom();
adamc@1104	357 uw_init_crypto();
adamc@1094	358 }
adamc@1094	359
adamc@1094	360 void uw_app_init(uw_app *app) {
adamc@1094	361 app->client_init();
adamc@668	362 }
adamc@668	363
adam@1332	364 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114	365
adamc@668	366
adamc@667	367 // Single-request state
adamc@667	368
adamc@323	369 typedef struct regions {
adamc@323	370 struct regions *next;
adamc@323	371 } regions;
adamc@323	372
adamc@425	373 typedef struct {
adamc@425	374 void (func)(void);
adamc@425	375 void *arg;
adamc@425	376 } cleanup;
adamc@425	377
adamc@671	378 typedef struct {
adamc@682	379 unsigned client;
adam@1369	380 uw_buffer msgs;
adamc@682	381 } delta;
adamc@671	382
adamc@737	383 typedef enum {
adamc@759	384 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	385 } input_kind;
adamc@737	386
adamc@756	387 typedef struct input {
adamc@737	388 input_kind kind;
adamc@737	389 union {
adamc@737	390 char *normal;
adamc@739	391 uw_Basis_file file;
adamc@756	392 struct {
adamc@759	393 struct input fields, parent;
adamc@756	394 } subform;
adamc@759	395 struct {
adamc@759	396 struct input entries, parent;
adamc@759	397 } subforms;
adamc@759	398 struct {
adamc@759	399 struct input fields, next, *parent;
adamc@759	400 } entry;
adamc@737	401 } data;
adamc@737	402 } input;
adamc@737	403
adamc@771	404 typedef struct {
adamc@771	405 void *data;
adam@1327	406 uw_callback commit, rollback;
adam@1327	407 uw_callback_with_retry free;
adamc@771	408 } transactional;
adamc@771	409
adamc@1061	410 typedef struct {
adamc@1061	411 char *name;
adamc@1061	412 void *data;
adamc@1061	413 void (free)(void);
adamc@1061	414 } global;
adamc@1061	415
adamc@311	416 struct uw_context {
adamc@1094	417 uw_app *app;
adam@1446	418 int id;
adamc@1094	419
adamc@854	420 char (get_header)(void , const char );
adamc@854	421 void *get_header_data;
adamc@457	422
adam@1369	423 uw_buffer outHeaders, page, heap, script;
adam@1451	424 int allowed_to_return_indirectly, returning_indirectly;
adamc@759	425 input inputs, subinputs, *cur_container;
adamc@1094	426 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	427
adam@1446	428 unsigned long long source_count;
adamc@562	429
adamc@272	430 void *db;
adamc@272	431
adamc@167	432 jmp_buf jmp_buf;
adamc@167	433
adamc@323	434 regions *regions;
adamc@323	435
adamc@425	436 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	437
adamc@1094	438 const char *script_header;
adamc@643	439
adamc@736	440 int needs_push, needs_sig;
adamc@693	441
adamc@682	442 size_t n_deltas, used_deltas;
adamc@682	443 delta *deltas;
adamc@671	444
adamc@682	445 client *client;
adamc@682	446
adamc@771	447 transactional *transactionals;
adamc@771	448 size_t n_transactionals, used_transactionals;
adamc@771	449
adamc@1061	450 global *globals;
adamc@1061	451 size_t n_globals;
adamc@1061	452
adamc@1066	453 char *current_url;
adamc@1066	454
adamc@1114	455 int deadline;
adamc@1114	456
adamc@1121	457 void *client_data;
adamc@1121	458
adam@1334	459 void *logger_data;
adam@1334	460 uw_logger log_debug;
adam@1334	461
adam@1386	462 int isPost, hasPostBody;
adam@1347	463 uw_Basis_postBody postBody;
adam@1370	464 uw_Basis_string queryString;
adam@1347	465
adam@1556	466 unsigned nextId;
adam@1556	467
adamc@167	468 char error_message[ERROR_BUF_LEN];
adamc@117	469 };
adamc@117	470
adamc@1113	471 size_t uw_headers_max = SIZE_MAX;
adamc@1113	472 size_t uw_page_max = SIZE_MAX;
adamc@1113	473 size_t uw_heap_max = SIZE_MAX;
adamc@1113	474 size_t uw_script_max = SIZE_MAX;
adamc@1113	475
adam@1446	476 uw_context uw_init(int id, void *logger_data, uw_logger log_debug) {
adamc@311	477 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	478
adamc@1094	479 ctx->app = NULL;
adam@1446	480 ctx->id = id;
adamc@1094	481
adamc@854	482 ctx->get_header = NULL;
adamc@854	483 ctx->get_header_data = NULL;
adamc@457	484
adam@1413	485 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413	486 ctx->outHeaders.start[0] = 0;
adam@1413	487 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413	488 ctx->page.start[0] = 0;
adam@1451	489 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	490 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369	491 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667	492 ctx->script.start[0] = 0;
adamc@136	493
adamc@1094	494 ctx->inputs = malloc(0);
adamc@759	495 ctx->cur_container = NULL;
adamc@756	496 ctx->subinputs = malloc(0);
adamc@1094	497 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	498
adamc@272	499 ctx->db = NULL;
adamc@272	500
adamc@323	501 ctx->regions = NULL;
adamc@323	502
adamc@425	503 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	504
adamc@643	505 ctx->script_header = "";
adamc@693	506 ctx->needs_push = 0;
adamc@736	507 ctx->needs_sig = 0;
adamc@1104	508
adamc@565	509 ctx->source_count = 0;
adamc@562	510
adamc@682	511 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	512 ctx->deltas = malloc(0);
adamc@671	513
adamc@700	514 ctx->client = NULL;
adamc@700	515
adamc@700	516 ctx->error_message[0] = 0;
adamc@700	517
adamc@771	518 ctx->transactionals = malloc(0);
adamc@771	519 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	520
adamc@1061	521 ctx->globals = malloc(0);
adamc@1061	522 ctx->n_globals = 0;
adamc@1061	523
adamc@1066	524 ctx->current_url = "";
adamc@1066	525
adamc@1114	526 ctx->deadline = INT_MAX;
adamc@1114	527
adamc@1121	528 ctx->client_data = uw_init_client_data();
adamc@1121	529
adam@1334	530 ctx->logger_data = logger_data;
adam@1334	531 ctx->log_debug = log_debug;
adam@1334	532
adam@1386	533 ctx->isPost = ctx->hasPostBody = 0;
adam@1347	534
adam@1370	535 ctx->queryString = NULL;
adam@1370	536
adam@1556	537 ctx->nextId = 0;
adam@1556	538
adamc@117	539 return ctx;
adamc@106	540 }
adamc@106	541
adamc@1113	542 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	543
adamc@1121	544 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	545 return ctx->app;
adamc@1121	546 }
adamc@1121	547
adamc@1113	548 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	549 ctx->app = app;
adamc@1094	550
adamc@1105	551 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	552 if (app->inputs_len > uw_inputs_max)
adamc@1113	553 return 1;
adamc@1113	554
adamc@1094	555 ctx->sz_inputs = app->inputs_len;
adamc@1094	556 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	557 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	558 }
adamc@1134	559
adamc@1134	560 return 0;
adamc@1094	561 }
adamc@1094	562
adamc@1121	563 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	564 uw_copy_client_data(ctx->client_data, data);
adamc@1121	565 }
adamc@1121	566
adamc@311	567 void uw_set_db(uw_context ctx, void *db) {
adamc@272	568 ctx->db = db;
adamc@272	569 }
adamc@272	570
adamc@311	571 void *uw_get_db(uw_context ctx) {
adamc@272	572 return ctx->db;
adamc@272	573 }
adamc@272	574
adamc@311	575 void uw_free(uw_context ctx) {
adamc@671	576 size_t i;
adamc@671	577
adam@1369	578 uw_buffer_free(&ctx->outHeaders);
adam@1369	579 uw_buffer_free(&ctx->script);
adam@1369	580 uw_buffer_free(&ctx->page);
adam@1369	581 uw_buffer_free(&ctx->heap);
adamc@144	582 free(ctx->inputs);
adamc@756	583 free(ctx->subinputs);
adamc@425	584 free(ctx->cleanup);
adamc@771	585 free(ctx->transactionals);
adamc@1121	586 uw_free_client_data(ctx->client_data);
adamc@671	587
adamc@682	588 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	589 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	590 free(ctx->deltas);
adamc@671	591
adamc@1061	592 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	593 if (ctx->globals[i].free)
adamc@1089	594 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	595 free(ctx->globals);
adamc@1061	596
adamc@136	597 free(ctx);
adamc@136	598 }
adamc@136	599
adamc@562	600 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	601 uw_buffer_reset(&ctx->outHeaders);
adam@1369	602 uw_buffer_reset(&ctx->script);
adamc@667	603 ctx->script.start[0] = 0;
adam@1369	604 uw_buffer_reset(&ctx->page);
adam@1451	605 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	606 uw_buffer_reset(&ctx->heap);
adamc@323	607 ctx->regions = NULL;
adamc@425	608 ctx->cleanup_front = ctx->cleanup;
adamc@682	609 ctx->used_deltas = 0;
adamc@682	610 ctx->client = NULL;
adamc@759	611 ctx->cur_container = NULL;
adamc@771	612 ctx->used_transactionals = 0;
adamc@1117	613 ctx->script_header = "";
adam@1370	614 ctx->queryString = NULL;
adam@1556	615 ctx->nextId = 0;
adamc@167	616 }
adamc@167	617
adamc@562	618 void uw_reset_keep_request(uw_context ctx) {
adamc@562	619 uw_reset_keep_error_message(ctx);
adamc@562	620 ctx->error_message[0] = 0;
adamc@167	621 }
adamc@167	622
adamc@311	623 void uw_reset(uw_context ctx) {
adamc@311	624 uw_reset_keep_request(ctx);
adamc@1105	625 if (ctx->app)
adamc@1105	626 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	627 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461	628 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adamc@144	629 }
adamc@144	630
adamc@311	631 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	632 int r = setjmp(ctx->jmp_buf);
adamc@272	633
adamc@1105	634 if (r == 0 && ctx->app)
adamc@1094	635 ctx->app->db_init(ctx);
adamc@272	636
adamc@272	637 return r;
adamc@272	638 }
adamc@272	639
adamc@1118	640 void uw_close(uw_context ctx) {
adamc@1118	641 ctx->app->db_close(ctx);
adamc@1118	642 }
adamc@1118	643
adam@1446	644 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	645 return ctx->get_header(ctx->get_header_data, h);
adam@1446	646 }
adam@1446	647
adamc@854	648 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	649 ctx->get_header = get_header;
adamc@854	650 ctx->get_header_data = get_header_data;
adamc@742	651 }
adamc@742	652
adamc@801	653 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	654 va_list ap;
adamc@801	655 va_start(ap, fmt);
adamc@801	656
adamc@801	657 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	658 }
adamc@801	659
adamc@1131	660 int uw_has_error(uw_context ctx) {
adamc@1131	661 return ctx->error_message[0] != 0;
adamc@1131	662 }
adamc@1131	663
adamc@311	664 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	665 cleanup *cl;
adamc@425	666
adamc@167	667 va_list ap;
adamc@167	668 va_start(ap, fmt);
adamc@167	669
adamc@167	670 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	671
adamc@425	672 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	673 cl->func(cl->arg);
adamc@425	674
adamc@425	675 ctx->cleanup_front = ctx->cleanup;
adamc@425	676
adamc@190	677 longjmp(ctx->jmp_buf, fk);
adamc@167	678 }
adamc@167	679
adamc@1113	680 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	681
adamc@425	682 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	683 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	684 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	685 if (len == 0)
adamc@425	686 newLen = 1;
adamc@425	687 else
adamc@428	688 newLen = len * 2;
adamc@1113	689
adamc@1134	690 if (newLen > uw_cleanup_max) {
adamc@1113	691 if (len+1 <= uw_cleanup_max)
adamc@1113	692 newLen = uw_cleanup_max;
adamc@1113	693 else
adamc@1113	694 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	695 }
adamc@1113	696
adamc@470	697 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	698 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	699 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	700 }
adamc@425	701
adamc@425	702 ctx->cleanup_front->func = func;
adamc@425	703 ctx->cleanup_front->arg = arg;
adamc@425	704 ++ctx->cleanup_front;
adamc@425	705 }
adamc@425	706
adam@1444	707 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	708
adamc@682	709 void uw_login(uw_context ctx) {
adamc@693	710 if (ctx->needs_push) {
adamc@682	711 char id_s, pass_s;
adamc@682	712
adamc@682	713 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682	714 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682	715 unsigned id = atoi(id_s);
adamc@682	716 int pass = atoi(pass_s);
adamc@682	717 client *c = find_client(id);
adamc@682	718
adamc@682	719 if (c == NULL)
adam@1444	720 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", uw_Basis_htmlifyString(ctx, id_s), uw_Basis_htmlifyString(ctx, pass_s));
adamc@682	721 else {
adamc@685	722 use_client(c);
adamc@682	723 ctx->client = c;
adamc@682	724
adamc@682	725 if (c->mode != USED)
adamc@682	726 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682	727 if (c->pass != pass)
adamc@682	728 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682	729 }
adamc@682	730 } else {
adamc@682	731 client *c = new_client();
adamc@1113	732
adamc@1113	733 if (c == NULL)
adamc@1113	734 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adamc@1113	735
adamc@685	736 use_client(c);
adamc@1121	737 uw_copy_client_data(c->data, ctx->client_data);
adamc@682	738 ctx->client = c;
adamc@864	739 }
adamc@682	740 }
adamc@682	741 }
adamc@682	742
adamc@671	743 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	744 int r = setjmp(ctx->jmp_buf);
adamc@671	745
adamc@671	746 if (r == 0) {
adamc@1094	747 if (ctx->app->db_begin(ctx))
adamc@671	748 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adamc@682	749
adamc@1094	750 ctx->app->handle(ctx, path);
adamc@671	751 }
adamc@671	752
adamc@671	753 return r;
adamc@671	754 }
adamc@671	755
adamc@772	756 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	757 if (ctx->client == NULL)
adamc@682	758 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	759
adamc@682	760 return ctx->client->id;
adamc@682	761 }
adamc@682	762
adamc@425	763 void uw_pop_cleanup(uw_context ctx) {
adamc@425	764 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	765 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	766
adamc@425	767 --ctx->cleanup_front;
adamc@425	768 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	769 }
adamc@425	770
adamc@311	771 char *uw_error_message(uw_context ctx) {
adamc@167	772 return ctx->error_message;
adamc@167	773 }
adamc@167	774
adamc@1115	775 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	776 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	777 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	778 }
adamc@1115	779
adamc@759	780 static input *INP(uw_context ctx) {
adamc@759	781 if (ctx->cur_container == NULL)
adamc@759	782 return ctx->inputs;
adamc@759	783 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	784 return ctx->cur_container->data.subform.fields;
adamc@759	785 else if (ctx->cur_container->kind == ENTRY)
adamc@759	786 return ctx->cur_container->data.entry.fields;
adamc@759	787 else
adamc@760	788 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	789 }
adamc@759	790
adamc@760	791 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	792 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	793 *ptr += new_start - old_start;
adamc@760	794 }
adamc@760	795
adamc@760	796 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	797 switch (x->kind) {
adamc@759	798 case SUBFORM:
adamc@760	799 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	800 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	801 break;
adamc@759	802 case SUBFORMS:
adamc@760	803 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	804 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	805 break;
adamc@759	806 case ENTRY:
adamc@760	807 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	808 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	809 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	810 break;
adamc@1134	811 default:
adamc@1134	812 break;
adamc@759	813 }
adamc@759	814 }
adamc@759	815
adamc@1113	816 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	817
adamc@759	818 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	819 size_t i;
adamc@759	820 input *r;
adamc@759	821
adamc@759	822 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	823 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	824 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	825
adamc@759	826 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	827
adamc@760	828 if (ctx->subinputs != new_subinputs) {
adamc@760	829 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	830 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	831 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	832 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	833
adamc@760	834 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	835
adamc@760	836 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	837 ctx->subinputs = new_subinputs;
adamc@760	838 }
adamc@759	839 }
adamc@759	840
adamc@759	841 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	842
adamc@759	843 for (i = 0; i < len; ++i)
adam@1474	844 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	845
adamc@759	846 return r;
adamc@759	847 }
adamc@756	848
adamc@801	849 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	850 //printf("Input name %s\n", name);
adamc@1038	851
adamc@756	852 if (!strcasecmp(name, ".b")) {
adamc@1094	853 int n = ctx->app->input_num(value);
adamc@756	854 input *inps;
adamc@756	855
adamc@801	856 if (n < 0) {
adam@1444	857 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	858 return -1;
adamc@801	859 }
adamc@801	860
adamc@1094	861 if (n >= ctx->app->inputs_len) {
adam@1444	862 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	863 return -1;
adamc@801	864 }
adamc@756	865
adamc@1094	866 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	867
adamc@759	868 INP(ctx)[n].kind = SUBFORM;
adamc@759	869 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	870 INP(ctx)[n].data.subform.fields = inps;
adamc@759	871 ctx->cur_container = &INP(ctx)[n];
adamc@756	872 } else if (!strcasecmp(name, ".e")) {
adamc@756	873 input *tmp;
adamc@756	874
adamc@801	875 if (ctx->cur_container == NULL) {
adamc@801	876 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	877 return -1;
adamc@801	878 }
adamc@756	879
adamc@759	880 tmp = ctx->cur_container;
adamc@759	881 switch (tmp->kind) {
adamc@759	882 case SUBFORM:
adamc@759	883 ctx->cur_container = tmp->data.subform.parent;
adamc@759	884 tmp->data.subform.parent = NULL;
adamc@759	885 break;
adamc@759	886 case SUBFORMS:
adamc@759	887 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	888 tmp->data.subforms.parent = NULL;
adamc@759	889 break;
adamc@759	890 case ENTRY:
adamc@759	891 ctx->cur_container = tmp->data.entry.parent;
adamc@759	892 break;
adamc@759	893 default:
adamc@801	894 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	895 return -1;
adamc@759	896 }
adamc@759	897 } else if (!strcasecmp(name, ".s")) {
adamc@1094	898 int n = ctx->app->input_num(value);
adamc@759	899
adamc@801	900 if (n < 0) {
adam@1444	901 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	902 return -1;
adamc@801	903 }
adamc@801	904
adamc@1094	905 if (n >= ctx->app->inputs_len) {
adam@1444	906 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	907 return -1;
adamc@801	908 }
adamc@759	909
adamc@759	910 INP(ctx)[n].kind = SUBFORMS;
adamc@759	911 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	912 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	913 ctx->cur_container = &INP(ctx)[n];
adamc@759	914 } else if (!strcasecmp(name, ".i")) {
adamc@759	915 input *inps;
adamc@759	916
adamc@801	917 if (!ctx->cur_container) {
adamc@801	918 uw_set_error(ctx, "New entry without container");
adamc@801	919 return -1;
adamc@801	920 }
adamc@801	921
adamc@801	922 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	923 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	924 return -1;
adamc@801	925 }
adamc@759	926
adamc@1094	927 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	928
adamc@759	929 inps->kind = ENTRY;
adamc@759	930 inps->data.entry.parent = ctx->cur_container;
adamc@759	931 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	932 ctx->cur_container->data.subforms.entries = inps;
adamc@759	933
adamc@759	934 inps->data.entry.fields = inps+1;
adamc@759	935 ctx->cur_container = inps;
adamc@756	936 } else {
adamc@1094	937 int n = ctx->app->input_num(name);
adamc@756	938
adam@1384	939 if (n < 0)
adam@1384	940 return 0;
adamc@801	941
adamc@1094	942 if (n >= ctx->app->inputs_len) {
adam@1444	943 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	944 return -1;
adamc@801	945 }
adamc@756	946
adamc@756	947 INP(ctx)[n].kind = NORMAL;
adamc@756	948 INP(ctx)[n].data.normal = value;
adamc@756	949 }
adamc@801	950
adamc@801	951 return 0;
adamc@144	952 }
adamc@144	953
adamc@311	954 char *uw_get_input(uw_context ctx, int n) {
adamc@169	955 if (n < 0)
adamc@311	956 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	957 if (n >= ctx->app->inputs_len)
adamc@311	958 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	959
adamc@756	960 switch (INP(ctx)[n].kind) {
adamc@737	961 case UNSET:
adamc@737	962 return NULL;
adamc@739	963 case FIL:
adamc@739	964 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	965 case SUBFORM:
adamc@756	966 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	967 case SUBFORMS:
adamc@759	968 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	969 case ENTRY:
adamc@759	970 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	971 case NORMAL:
adamc@756	972 return INP(ctx)[n].data.normal;
adamc@737	973 default:
adamc@737	974 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	975 }
adamc@138	976 }
adamc@138	977
adamc@311	978 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	979 if (n < 0)
adamc@311	980 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	981 if (n >= ctx->app->inputs_len)
adamc@311	982 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	983
adamc@756	984 switch (INP(ctx)[n].kind) {
adamc@737	985 case UNSET:
adamc@737	986 return "";
adamc@739	987 case FIL:
adamc@739	988 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	989 case SUBFORM:
adamc@756	990 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	991 case SUBFORMS:
adamc@759	992 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	993 case ENTRY:
adamc@759	994 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	995 case NORMAL:
adamc@756	996 return INP(ctx)[n].data.normal;
adamc@737	997 default:
adamc@737	998 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	999 }
adamc@737	1000 }
adamc@737	1001
adamc@801	1002 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1003 int n = ctx->app->input_num(name);
adamc@737	1004
adamc@801	1005 if (n < 0) {
adam@1444	1006 uw_set_error(ctx, "Bad file input name %s", uw_Basis_htmlifyString(ctx, name));
adamc@801	1007 return -1;
adamc@801	1008 }
adamc@801	1009
adamc@1094	1010 if (n >= ctx->app->inputs_len) {
adam@1444	1011 uw_set_error(ctx, "For file input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	1012 return -1;
adamc@801	1013 }
adamc@737	1014
adamc@739	1015 ctx->inputs[n].kind = FIL;
adamc@739	1016 ctx->inputs[n].data.file = f;
adamc@801	1017
adamc@801	1018 return 0;
adamc@737	1019 }
adamc@737	1020
adamc@739	1021 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1022
adamc@739	1023 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1024 if (n < 0)
adamc@737	1025 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1026 if (n >= ctx->app->inputs_len)
adamc@737	1027 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1028
adamc@756	1029 switch (INP(ctx)[n].kind) {
adamc@737	1030 case UNSET:
adamc@737	1031 {
adamc@739	1032 char *data = uw_malloc(ctx, 0);
adamc@740	1033 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1034 return f;
adamc@737	1035 }
adamc@739	1036 case FIL:
adamc@756	1037 return INP(ctx)[n].data.file;
adamc@737	1038 case NORMAL:
adamc@737	1039 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1040 case SUBFORM:
adamc@756	1041 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1042 case SUBFORMS:
adamc@759	1043 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1044 case ENTRY:
adamc@759	1045 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1046 default:
adamc@737	1047 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1048 }
adamc@190	1049 }
adamc@190	1050
adamc@756	1051 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1052 if (n < 0)
adamc@756	1053 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1054 if (n >= ctx->app->inputs_len)
adamc@756	1055 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1056
adamc@756	1057 switch (INP(ctx)[n].kind) {
adamc@756	1058 case UNSET:
adamc@756	1059 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1060 case FIL:
adamc@756	1061 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1062 case NORMAL:
adamc@756	1063 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1064 case SUBFORMS:
adamc@759	1065 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1066 case ENTRY:
adamc@759	1067 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1068 case SUBFORM:
adamc@759	1069 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1070 ctx->cur_container = &INP(ctx)[n];
adamc@756	1071 return;
adamc@756	1072 default:
adamc@756	1073 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1074 }
adamc@756	1075 }
adamc@756	1076
adamc@756	1077 void uw_leave_subform(uw_context ctx) {
adamc@756	1078 input *tmp;
adamc@756	1079
adamc@759	1080 if (ctx->cur_container == NULL)
adamc@756	1081 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1082
adamc@759	1083 tmp = ctx->cur_container;
adamc@759	1084 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1085 tmp->data.subform.parent = NULL;
adamc@759	1086 }
adamc@759	1087
adamc@759	1088 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1089 input *inps;
adamc@759	1090
adamc@759	1091 if (n < 0)
adamc@759	1092 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1093 if (n >= ctx->app->inputs_len)
adamc@759	1094 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1095
adamc@759	1096 switch (INP(ctx)[n].kind) {
adamc@759	1097 case UNSET:
adamc@759	1098 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1099 case FIL:
adamc@759	1100 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1101 case NORMAL:
adamc@759	1102 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1103 case SUBFORM:
adamc@759	1104 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1105 case ENTRY:
adamc@759	1106 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1107 case SUBFORMS:
adamc@759	1108 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1109 if (inps) {
adamc@759	1110 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1111 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1112 return 1;
adamc@759	1113 } else
adamc@759	1114 return 0;
adamc@759	1115 default:
adamc@759	1116 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1117 }
adamc@759	1118 }
adamc@759	1119
adamc@759	1120 int uw_next_entry(uw_context ctx) {
adamc@759	1121 if (ctx->cur_container == NULL)
adamc@759	1122 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1123
adamc@759	1124 switch (ctx->cur_container->kind) {
adamc@759	1125 case UNSET:
adamc@759	1126 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1127 case FIL:
adamc@759	1128 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1129 case NORMAL:
adamc@759	1130 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1131 case SUBFORM:
adamc@759	1132 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1133 case SUBFORMS:
adamc@759	1134 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1135 case ENTRY:
adamc@759	1136 if (ctx->cur_container->data.entry.next) {
adamc@759	1137 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1138 return 1;
adamc@759	1139 } else {
adamc@759	1140 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1141 return 0;
adamc@759	1142 }
adamc@759	1143 default:
adamc@759	1144 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1145 }
adamc@756	1146 }
adamc@756	1147
adamc@643	1148 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1149 ctx->script_header = s;
adamc@643	1150 }
adamc@643	1151
adamc@1094	1152 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1153 return ctx->app->url_prefix;
adamc@667	1154 }
adamc@667	1155
adamc@693	1156 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1157 ctx->needs_push = n;
adamc@693	1158 }
adamc@693	1159
adamc@736	1160 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1161 ctx->needs_sig = n;
adamc@736	1162 }
adamc@736	1163
adamc@667	1164
adam@1369	1165 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1166 if (b->back - b->front < extra) {
adamc@666	1167 size_t desired = b->front - b->start + extra, next;
adamc@136	1168 char *new_heap;
adamc@136	1169
adamc@666	1170 next = b->back - b->start;
adamc@317	1171 if (next == 0)
adamc@317	1172 next = 1;
adamc@317	1173 for (; next < desired; next *= 2);
adamc@136	1174
adamc@1134	1175 if (next > b->max) {
adamc@1113	1176 if (desired <= b->max)
adamc@1113	1177 next = desired;
adamc@1113	1178 else
adamc@1113	1179 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1180 }
adamc@1113	1181
adamc@666	1182 new_heap = realloc(b->start, next);
adamc@666	1183 b->front = new_heap + (b->front - b->start);
adamc@666	1184 b->back = new_heap + next;
adamc@136	1185
adamc@667	1186 if (new_heap != b->start) {
adamc@666	1187 b->start = new_heap;
adam@1389	1188 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1189 }
adamc@136	1190
adamc@666	1191 b->start = new_heap;
adamc@136	1192 }
adamc@136	1193 }
adamc@136	1194
adamc@832	1195 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1196 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1197 }
adamc@666	1198
adamc@832	1199 char *uw_heap_front(uw_context ctx) {
adamc@832	1200 return ctx->heap.front;
adamc@832	1201 }
adamc@832	1202
adamc@832	1203 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1204 ctx->heap.front = fr;
adamc@832	1205 }
adamc@832	1206
adamc@311	1207 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136	1208 void *result;
adamc@136	1209
adamc@311	1210 uw_check_heap(ctx, len);
adamc@136	1211
adamc@666	1212 result = ctx->heap.front;
adamc@666	1213 ctx->heap.front += len;
adamc@136	1214 return result;
adamc@117	1215 }
adamc@117	1216
adamc@323	1217 void uw_begin_region(uw_context ctx) {
adamc@666	1218 regions r = (regions ) ctx->heap.front;
adamc@323	1219
adamc@323	1220 uw_check_heap(ctx, sizeof(regions));
adamc@323	1221
adamc@666	1222 ctx->heap.front += sizeof(regions);
adamc@323	1223
adamc@323	1224 r->next = ctx->regions;
adamc@323	1225 ctx->regions = r;
adamc@323	1226 }
adamc@323	1227
adamc@323	1228 void uw_end_region(uw_context ctx) {
adamc@323	1229 regions *r = ctx->regions;
adamc@323	1230
adamc@323	1231 if (r == NULL)
adamc@323	1232 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1233
adamc@666	1234 ctx->heap.front = (char *) r;
adamc@323	1235 ctx->regions = r->next;
adamc@323	1236 }
adamc@323	1237
adamc@324	1238 void uw_memstats(uw_context ctx) {
adam@1369	1239 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1240 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1241 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1242 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1243 }
adamc@324	1244
adamc@311	1245 int uw_send(uw_context ctx, int sock) {
adamc@666	1246 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462	1247
adamc@462	1248 if (n < 0)
adamc@462	1249 return n;
adamc@462	1250
adamc@462	1251 n = uw_really_send(sock, "\r\n", 2);
adamc@462	1252
adamc@462	1253 if (n < 0)
adamc@462	1254 return n;
adamc@462	1255
adamc@666	1256 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462	1257 }
adamc@462	1258
adamc@856	1259 int uw_print(uw_context ctx, int fd) {
adamc@856	1260 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1261
adamc@856	1262 if (n < 0)
adamc@856	1263 return n;
adamc@856	1264
adamc@856	1265 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1266
adamc@856	1267 if (n < 0)
adamc@856	1268 return n;
adamc@856	1269
adamc@856	1270 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1271 }
adamc@856	1272
adamc@860	1273 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1274 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1275
adamc@860	1276 if (n < 0)
adamc@860	1277 return n;
adamc@860	1278
adamc@860	1279 n = output(data, "\r\n", 2);
adamc@860	1280
adamc@860	1281 if (n < 0)
adamc@860	1282 return n;
adamc@860	1283
adamc@860	1284 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1285 }
adamc@860	1286
adamc@462	1287 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1288 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1289 }
adamc@462	1290
adamc@462	1291 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1292 int len = strlen(s);
adamc@462	1293
adamc@462	1294 uw_check_headers(ctx, len + 1);
adamc@666	1295 strcpy(ctx->outHeaders.front, s);
adamc@666	1296 ctx->outHeaders.front += len;
adamc@562	1297 }
adamc@562	1298
adamc@1110	1299 void uw_clear_headers(uw_context ctx) {
adam@1369	1300 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1301 }
adamc@1110	1302
adamc@562	1303 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1304 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1305 }
adamc@562	1306
adamc@562	1307 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1308 int len = strlen(s);
adamc@562	1309
adamc@562	1310 uw_check_script(ctx, len + 1);
adamc@666	1311 strcpy(ctx->script.front, s);
adamc@666	1312 ctx->script.front += len;
adamc@562	1313 }
adamc@562	1314
adam@1446	1315 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1316 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1317 uw_write_script(ctx, "sig=\"");
adam@1671	1318 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1319 uw_write_script(ctx, "\";");
adam@1671	1320 }
adam@1671	1321
adam@1446	1322 return ctx->script.start;
adam@1446	1323 }
adam@1446	1324
adamc@695	1325 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1326 if (s[0] == 0)
adamc@695	1327 return "";
adamc@695	1328 else {
adamc@695	1329 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1330 sprintf(r, " onload='%s'", s);
adamc@695	1331 return r;
adamc@695	1332 }
adamc@695	1333 }
adamc@695	1334
adamc@1042	1335 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1336 if (ctx->script_header[0] == 0)
adamc@1042	1337 return "";
adamc@1042	1338 else {
adamc@1042	1339 char *r = uw_malloc(ctx, 22 + strlen(s));
adamc@1042	1340 sprintf(r, " onunload='unload();%s'", s);
adamc@1042	1341 return r;
adamc@1042	1342 }
adamc@1042	1343 }
adamc@1042	1344
adamc@694	1345 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1346 if (ctx->client == NULL) {
adamc@736	1347 if (ctx->needs_sig) {
adamc@1094	1348 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1349 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1350 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1351 return r;
adamc@736	1352 }
adamc@736	1353 else
adamc@736	1354 return "";
adamc@736	1355 } else {
adamc@1094	1356 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1357 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1358 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1359 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1360 (ctx->isPost ? "true" : "false"),
adamc@682	1361 ctx->client->id,
adamc@682	1362 ctx->client->pass,
adamc@1094	1363 ctx->app->url_prefix,
adamc@1094	1364 ctx->app->timeout,
adamc@736	1365 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1366 sig,
adamc@736	1367 ctx->needs_sig ? "\";" : "");
adamc@679	1368 return r;
adamc@668	1369 }
adamc@667	1370 }
adamc@667	1371
adamc@574	1372 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1373 char r, s2;
adamc@574	1374
adam@1446	1375 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1376
adamc@666	1377 r = s2 = ctx->heap.front;
adamc@574	1378 *s2++ = '"';
adamc@574	1379
adamc@574	1380 for (; *s; s++) {
adam@1286	1381 unsigned char c = *s;
adamc@574	1382
adamc@574	1383 switch (c) {
adamc@574	1384 case '"':
adamc@574	1385 strcpy(s2, "\\\"");
adamc@574	1386 s2 += 2;
adamc@574	1387 break;
adamc@1027	1388 case '\'':
adamc@1027	1389 strcpy(s2, "\\047");
adamc@1027	1390 s2 += 4;
adamc@1027	1391 break;
adamc@574	1392 case '\\':
adamc@574	1393 strcpy(s2, "\\\\");
adamc@574	1394 s2 += 2;
adamc@574	1395 break;
adam@1457	1396 case '<':
adam@1457	1397 strcpy(s2, "\\074");
adam@1457	1398 s2 += 4;
adam@1457	1399 break;
adamc@574	1400 default:
adam@1286	1401 if (isprint((int)c) \|\| c >= 128)
adamc@574	1402 *s2++ = c;
adamc@574	1403 else {
adam@1429	1404 sprintf(s2, "\\%03o", c);
adamc@574	1405 s2 += 4;
adamc@574	1406 }
adamc@574	1407 }
adamc@574	1408 }
adamc@574	1409
adamc@574	1410 strcpy(s2, "\"");
adamc@910	1411 ctx->heap.front = s2 + 2;
adamc@574	1412 return r;
adamc@574	1413 }
adamc@574	1414
adam@1286	1415 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1416 unsigned char c = c1;
adamc@1025	1417 char r, s2;
adamc@1025	1418
adam@1446	1419 uw_check_heap(ctx, 7);
adamc@1025	1420
adamc@1025	1421 r = s2 = ctx->heap.front;
adamc@1025	1422 *s2++ = '"';
adamc@1025	1423
adamc@1025	1424 switch (c) {
adamc@1025	1425 case '"':
adamc@1025	1426 strcpy(s2, "\\\"");
adamc@1025	1427 s2 += 2;
adamc@1025	1428 break;
adamc@1027	1429 case '\'':
adamc@1027	1430 strcpy(s2, "\\047");
adamc@1027	1431 s2 += 4;
adamc@1027	1432 break;
adamc@1025	1433 case '\\':
adamc@1025	1434 strcpy(s2, "\\\\");
adamc@1025	1435 s2 += 2;
adamc@1025	1436 break;
adam@1457	1437 case '<':
adam@1457	1438 strcpy(s2, "\\074");
adam@1457	1439 s2 += 4;
adam@1457	1440 break;
adamc@1025	1441 default:
adam@1286	1442 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1443 *s2++ = c;
adamc@1025	1444 else {
adam@1429	1445 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1446 s2 += 4;
adamc@1025	1447 }
adamc@1025	1448 }
adamc@1025	1449
adamc@1025	1450 strcpy(s2, "\"");
adamc@1025	1451 ctx->heap.front = s2 + 2;
adamc@1025	1452 return r;
adamc@1025	1453 }
adamc@1025	1454
adamc@574	1455 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1456 char r, s2;
adamc@574	1457
adam@1446	1458 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1459
adamc@666	1460 r = s2 = ctx->script.front;
adamc@574	1461 *s2++ = '"';
adamc@574	1462
adamc@574	1463 for (; *s; s++) {
adam@1286	1464 unsigned char c = *s;
adamc@574	1465
adamc@574	1466 switch (c) {
adamc@577	1467 case '\'':
adamc@1027	1468 strcpy(s2, "\\");
adamc@574	1469 s2 += 2;
adamc@574	1470 break;
adamc@574	1471 case '\\':
adamc@574	1472 strcpy(s2, "\\\\");
adamc@574	1473 s2 += 2;
adamc@574	1474 break;
adam@1457	1475 case '<':
adam@1457	1476 strcpy(s2, "\\074");
adam@1457	1477 s2 += 4;
adam@1457	1478 break;
adamc@574	1479 default:
adam@1286	1480 if (isprint((int)c) \|\| c >= 128)
adamc@574	1481 *s2++ = c;
adamc@574	1482 else {
adam@1429	1483 sprintf(s2, "\\%03o", c);
adamc@574	1484 s2 += 4;
adamc@574	1485 }
adamc@574	1486 }
adamc@574	1487 }
adamc@574	1488
adamc@574	1489 strcpy(s2, "\"");
adamc@666	1490 ctx->script.front = s2 + 1;
adamc@574	1491 return r;
adamc@574	1492 }
adamc@574	1493
adamc@682	1494 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1495 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1496 return "null";
adamc@682	1497 else {
adamc@682	1498 int len;
adamc@682	1499 char *r;
adamc@682	1500
adamc@682	1501 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1502 r = ctx->heap.front;
adamc@682	1503 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1504 ctx->heap.front += len+1;
adamc@682	1505 return r;
adamc@682	1506 }
adamc@682	1507 }
adamc@682	1508
adam@1446	1509 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1510 int len;
adamc@577	1511 size_t s_len = strlen(s);
adamc@562	1512
adam@1446	1513 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1514 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1515 ctx->script.front += len;
adamc@666	1516 strcpy(ctx->script.front, s);
adamc@666	1517 ctx->script.front += s_len;
adamc@970	1518 strcpy(ctx->script.front, "));");
adamc@972	1519 ctx->script.front += 3;
adamc@562	1520
adam@1446	1521 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1522 return r;
adam@1446	1523 }
adam@1446	1524
adam@1446	1525 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1526 int len;
adamc@577	1527 size_t s_len = strlen(s);
adamc@577	1528
adam@1446	1529 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1530 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1531 ctx->script.front += len;
adamc@666	1532 strcpy(ctx->script.front, s);
adamc@666	1533 ctx->script.front += s_len;
adamc@970	1534 strcpy(ctx->script.front, "));");
adamc@972	1535 ctx->script.front += 3;
adamc@577	1536
adamc@577	1537 return uw_unit_v;
adamc@577	1538 }
adamc@577	1539
adamc@311	1540 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1541 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1542 }
adamc@117	1543
adamc@311	1544 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1545 *(ctx->page.front)++ = c;
adam@1413	1546 *ctx->page.front = 0;
adamc@117	1547 }
adamc@117	1548
adamc@311	1549 void uw_writec(uw_context ctx, char c) {
adam@1413	1550 uw_check(ctx, 2);
adamc@311	1551 uw_writec_unsafe(ctx, c);
adamc@117	1552 }
adamc@117	1553
adamc@311	1554 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1555 int len = strlen(s);
adamc@666	1556 memcpy(ctx->page.front, s, len);
adamc@666	1557 ctx->page.front += len;
adamc@117	1558 }
adamc@117	1559
adamc@311	1560 void uw_write(uw_context ctx, const char* s) {
adamc@311	1561 uw_check(ctx, strlen(s) + 1);
adamc@311	1562 uw_write_unsafe(ctx, s);
adamc@666	1563 *ctx->page.front = 0;
adamc@102	1564 }
adamc@106	1565
adamc@311	1566 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1567 char *result;
adamc@136	1568 int len;
adamc@311	1569 uw_check_heap(ctx, INTS_MAX);
adamc@666	1570 result = ctx->heap.front;
adamc@276	1571 sprintf(result, "%lld%n", n, &len);
adamc@666	1572 ctx->heap.front += len+1;
adamc@136	1573 return result;
adamc@106	1574 }
adamc@106	1575
adamc@311	1576 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1577 char *result;
adamc@136	1578 int len;
adamc@311	1579 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1580 result = ctx->heap.front;
adamc@136	1581 sprintf(result, "%g%n", n, &len);
adamc@666	1582 ctx->heap.front += len+1;
adamc@136	1583 return result;
adamc@106	1584 }
adamc@106	1585
adamc@311	1586 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1587 int len = strlen(s);
adamc@136	1588 char result, p;
adamc@311	1589 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1590
adamc@666	1591 result = p = ctx->heap.front;
adamc@136	1592
adamc@136	1593 for (; *s; s++) {
adamc@1054	1594 unsigned char c = *s;
adamc@136	1595
adamc@136	1596 if (c == '"') {
adamc@136	1597 strcpy(p, """);
adamc@136	1598 p += 6;
adamc@136	1599 } else if (c == '&') {
adamc@136	1600 strcpy(p, "&");
adamc@136	1601 p += 5;
adamc@136	1602 }
adamc@1059	1603 else
adamc@136	1604 *p++ = c;
adamc@136	1605 }
adamc@136	1606
adamc@137	1607 *p++ = 0;
adamc@666	1608 ctx->heap.front = p;
adamc@136	1609 return result;
adamc@106	1610 }
adamc@106	1611
adamc@1011	1612 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1613 char result, p;
adamc@1011	1614 uw_check_heap(ctx, 7);
adamc@1011	1615
adamc@1011	1616 result = p = ctx->heap.front;
adamc@1011	1617
adamc@1011	1618 if (c == '"') {
adamc@1011	1619 strcpy(p, """);
adamc@1011	1620 p += 6;
adamc@1011	1621 } else if (c == '&') {
adamc@1011	1622 strcpy(p, "&");
adamc@1011	1623 p += 5;
adamc@1011	1624 }
adamc@1059	1625 else
adamc@1011	1626 *p++ = c;
adamc@1011	1627
adamc@1011	1628 *p++ = 0;
adamc@1011	1629 ctx->heap.front = p;
adamc@1011	1630 return result;
adamc@1011	1631 }
adamc@1011	1632
adamc@721	1633 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1634 return s;
adamc@721	1635 }
adamc@721	1636
adamc@311	1637 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1638 int len;
adamc@117	1639
adamc@666	1640 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1641 ctx->page.front += len;
adamc@106	1642 }
adamc@106	1643
adamc@428	1644 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1645 uw_check(ctx, INTS_MAX);
adamc@311	1646 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1647
adamc@428	1648 return uw_unit_v;
adamc@106	1649 }
adamc@106	1650
adamc@428	1651 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1652 int len;
adamc@117	1653
adamc@311	1654 uw_check(ctx, FLOATS_MAX);
adamc@666	1655 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1656 ctx->page.front += len;
adamc@428	1657
adamc@428	1658 return uw_unit_v;
adamc@117	1659 }
adamc@117	1660
adamc@428	1661 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1662 uw_check(ctx, strlen(s) * 6);
adamc@117	1663
adamc@106	1664 for (; *s; s++) {
adamc@1054	1665 unsigned char c = *s;
adamc@106	1666
adamc@106	1667 if (c == '"')
adamc@311	1668 uw_write_unsafe(ctx, """);
adamc@136	1669 else if (c == '&')
adamc@311	1670 uw_write_unsafe(ctx, "&");
adamc@1059	1671 else
adamc@311	1672 uw_writec_unsafe(ctx, c);
adamc@106	1673 }
adamc@428	1674
adamc@428	1675 return uw_unit_v;
adamc@106	1676 }
adamc@120	1677
adamc@1011	1678 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1679 uw_check(ctx, 6);
adamc@1011	1680
adamc@1011	1681 if (c == '"')
adamc@1011	1682 uw_write_unsafe(ctx, """);
adamc@1011	1683 else if (c == '&')
adamc@1011	1684 uw_write_unsafe(ctx, "&");
adamc@1059	1685 else
adamc@1011	1686 uw_writec_unsafe(ctx, c);
adamc@1011	1687
adamc@1011	1688 return uw_unit_v;
adamc@1011	1689 }
adamc@1011	1690
adamc@120	1691
adamc@311	1692 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1693 int len;
adamc@137	1694 char *r;
adamc@137	1695
adamc@311	1696 uw_check_heap(ctx, INTS_MAX);
adamc@666	1697 r = ctx->heap.front;
adamc@276	1698 sprintf(r, "%lld%n", n, &len);
adamc@666	1699 ctx->heap.front += len+1;
adamc@137	1700 return r;
adamc@120	1701 }
adamc@120	1702
adamc@682	1703 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1704 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1705 return "";
adamc@682	1706 else {
adamc@682	1707 int len;
adamc@682	1708 char *r;
adamc@679	1709
adamc@682	1710 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1711 r = ctx->heap.front;
adamc@682	1712 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1713 ctx->heap.front += len+1;
adamc@682	1714 return r;
adamc@682	1715 }
adamc@679	1716 }
adamc@679	1717
adamc@311	1718 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1719 int len;
adamc@137	1720 char *r;
adamc@137	1721
adamc@311	1722 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1723 r = ctx->heap.front;
adamc@137	1724 sprintf(r, "%g%n", n, &len);
adamc@666	1725 ctx->heap.front += len+1;
adamc@137	1726 return r;
adamc@120	1727 }
adamc@120	1728
adamc@311	1729 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1730 char r, p;
adamc@137	1731
adamc@925	1732 if (s[0] == '\0')
adamc@925	1733 return "_";
adamc@925	1734
adamc@925	1735 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1736
adamc@925	1737 r = p = ctx->heap.front;
adamc@925	1738 if (s[0] == '_')
adamc@925	1739 *p++ = '_';
adamc@925	1740
adamc@925	1741 for (; *s; s++) {
adamc@1087	1742 unsigned char c = *s;
adamc@137	1743
adamc@137	1744 if (c == ' ')
adamc@137	1745 *p++ = '+';
adamc@137	1746 else if (isalnum(c))
adamc@137	1747 *p++ = c;
adamc@137	1748 else {
adamc@1259	1749 sprintf(p, ".%02X", c);
adamc@137	1750 p += 3;
adamc@137	1751 }
adamc@137	1752 }
adamc@137	1753
adamc@137	1754 *p++ = 0;
adamc@666	1755 ctx->heap.front = p;
adamc@137	1756 return r;
adamc@120	1757 }
adamc@120	1758
adamc@311	1759 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1760 if (b == uw_Basis_False)
adamc@186	1761 return "0";
adamc@186	1762 else
adamc@186	1763 return "1";
adamc@186	1764 }
adamc@186	1765
adam@1620	1766 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1767 char *r;
adam@1620	1768 int len;
adam@1620	1769 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1770 r = ctx->heap.front;
adam@1620	1771 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1772 ctx->heap.front += len+1;
adam@1620	1773 return r;
adam@1620	1774 }
adam@1620	1775
adamc@311	1776 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1777 int len;
adamc@120	1778
adamc@666	1779 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1780 ctx->page.front += len;
adamc@120	1781 }
adamc@120	1782
adamc@428	1783 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1784 uw_check(ctx, INTS_MAX);
adamc@311	1785 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1786
adamc@428	1787 return uw_unit_v;
adamc@120	1788 }
adamc@120	1789
adamc@682	1790 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1791 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1792 int len;
adamc@682	1793
adamc@682	1794 uw_check(ctx, INTS_MAX + 1);
adamc@682	1795 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1796 ctx->page.front += len;
adamc@682	1797 }
adamc@682	1798
adamc@679	1799 return uw_unit_v;
adamc@679	1800 }
adamc@679	1801
adamc@428	1802 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1803 int len;
adamc@120	1804
adamc@311	1805 uw_check(ctx, FLOATS_MAX);
adamc@666	1806 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1807 ctx->page.front += len;
adamc@428	1808
adamc@428	1809 return uw_unit_v;
adamc@120	1810 }
adamc@120	1811
adamc@488	1812 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1813 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1814 }
adamc@488	1815
adam@1404	1816 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1817 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1818 }
adam@1404	1819
adamc@428	1820 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1821 if (s[0] == '\0') {
adamc@925	1822 uw_check(ctx, 1);
adamc@925	1823 uw_writec_unsafe(ctx, '_');
adamc@925	1824 return uw_unit_v;
adamc@925	1825 }
adamc@925	1826
adamc@925	1827 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1828
adamc@925	1829 if (s[0] == '_')
adamc@925	1830 uw_writec_unsafe(ctx, '_');
adamc@120	1831
adamc@120	1832 for (; *s; s++) {
adamc@1087	1833 unsigned char c = *s;
adamc@120	1834
adamc@120	1835 if (c == ' ')
adamc@311	1836 uw_writec_unsafe(ctx, '+');
adamc@120	1837 else if (isalnum(c))
adamc@311	1838 uw_writec_unsafe(ctx, c);
adamc@120	1839 else {
adamc@1259	1840 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1841 ctx->page.front += 3;
adamc@120	1842 }
adamc@120	1843 }
adamc@428	1844
adamc@428	1845 return uw_unit_v;
adamc@120	1846 }
adamc@120	1847
adamc@428	1848 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1849 if (b == uw_Basis_False)
adamc@311	1850 uw_writec(ctx, '0');
adamc@186	1851 else
adamc@311	1852 uw_writec(ctx, '1');
adamc@428	1853
adamc@428	1854 return uw_unit_v;
adamc@186	1855 }
adamc@186	1856
adam@1620	1857 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	1858 int len;
adam@1620	1859
adam@1620	1860 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	1861 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1862 ctx->page.front += len;
adam@1620	1863
adam@1620	1864 return uw_unit_v;
adam@1620	1865 }
adam@1620	1866
adamc@120	1867
adamc@311	1868 static char uw_unurlify_advance(char s) {
adamc@144	1869 char *new_s = strchr(s, '/');
adamc@120	1870
adamc@120	1871 if (new_s)
adamc@120	1872 *new_s++ = 0;
adamc@120	1873 else
adamc@144	1874 new_s = strchr(s, 0);
adamc@144	1875
adamc@144	1876 return new_s;
adamc@144	1877 }
adamc@144	1878
adamc@311	1879 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1880 char new_s = uw_unurlify_advance(s);
adamc@311	1881 uw_Basis_int r;
adamc@120	1882
adamc@276	1883 r = atoll(*s);
adamc@120	1884 *s = new_s;
adamc@120	1885 return r;
adamc@120	1886 }
adamc@120	1887
adamc@311	1888 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1889 char new_s = uw_unurlify_advance(s);
adamc@311	1890 uw_Basis_float r;
adamc@120	1891
adamc@120	1892 r = atof(*s);
adamc@120	1893 *s = new_s;
adamc@120	1894 return r;
adamc@120	1895 }
adamc@120	1896
adamc@488	1897 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	1898 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	1899 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	1900 return r;
adamc@488	1901 }
adamc@488	1902
adamc@1023	1903 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1904 char s1, s2 = s;
adamc@144	1905 int n;
adamc@136	1906
adamc@1023	1907 if (!fromClient) {
adamc@1023	1908 if (*s2 == '_')
adamc@1023	1909 ++s2;
adamc@1259	1910 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1911 s2 += 3;
adamc@1023	1912 }
adamc@925	1913
adamc@927	1914 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	1915 unsigned char c = *s2;
adamc@136	1916
adamc@136	1917 switch (c) {
adamc@136	1918 case '+':
adamc@136	1919 *s1 = ' ';
adamc@136	1920 break;
adamc@136	1921 case '%':
adamc@169	1922 if (s2[1] == 0)
adamc@311	1923 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1924 if (s2[2] == 0)
adamc@311	1925 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1926 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	1927 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	1928 *s1 = n;
adamc@136	1929 s2 += 2;
adamc@136	1930 break;
adamc@1259	1931 case '.':
adamc@1259	1932 if (!fromClient) {
adamc@1259	1933 if (s2[1] == 0)
adamc@1259	1934 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	1935 if (s2[2] == 0)
adamc@1259	1936 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	1937 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	1938 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	1939 *s1 = n;
adamc@1259	1940 s2 += 2;
adamc@1259	1941 break;
adamc@1259	1942 }
adamc@136	1943 default:
adamc@136	1944 *s1 = c;
adamc@136	1945 }
adamc@136	1946 }
adamc@136	1947 *s1++ = 0;
adamc@144	1948 return s1;
adamc@144	1949 }
adamc@144	1950
adamc@311	1951 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	1952 char new_s = uw_unurlify_advance(s);
adamc@311	1953 uw_Basis_bool r;
adamc@186	1954
adamc@186	1955 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	1956 r = uw_Basis_False;
adamc@186	1957 else
adamc@311	1958 r = uw_Basis_True;
adamc@186	1959
adamc@186	1960 *s = new_s;
adamc@186	1961 return r;
adamc@186	1962 }
adamc@186	1963
adamc@311	1964 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	1965 char new_s = uw_unurlify_advance(s);
adamc@1134	1966 char *r;
adamc@1134	1967 int len;
adamc@144	1968
adamc@200	1969 len = strlen(*s);
adamc@311	1970 uw_check_heap(ctx, len + 1);
adamc@144	1971
adamc@666	1972 r = ctx->heap.front;
adamc@1023	1973 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	1974 *s = new_s;
adamc@1023	1975 return r;
adamc@1023	1976 }
adamc@1023	1977
adamc@1109	1978 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	1979 s = uw_unurlify_advance(s);
adamc@1109	1980 return uw_unit_v;
adamc@1109	1981 }
adamc@1109	1982
adamc@1023	1983 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	1984 char new_s = uw_unurlify_advance(s);
adamc@1134	1985 char *r;
adamc@1134	1986 int len;
adamc@1023	1987
adamc@1023	1988 len = strlen(*s);
adamc@1023	1989 uw_check_heap(ctx, len + 1);
adamc@1023	1990
adamc@1023	1991 r = ctx->heap.front;
adamc@1023	1992 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	1993 *s = new_s;
adamc@136	1994 return r;
adamc@120	1995 }
adamc@135	1996
adamc@135	1997
adamc@311	1998 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	1999 int len;
adamc@286	2000 char *r;
adamc@286	2001
adamc@311	2002 uw_check_heap(ctx, INTS_MAX);
adamc@666	2003 r = ctx->heap.front;
adamc@286	2004 sprintf(r, "%lld%n", n, &len);
adamc@666	2005 ctx->heap.front += len+1;
adamc@286	2006 return r;
adamc@286	2007 }
adamc@286	2008
adamc@428	2009 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2010 int len;
adamc@286	2011
adamc@311	2012 uw_check(ctx, INTS_MAX);
adamc@666	2013 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2014 ctx->page.front += len;
adamc@428	2015
adamc@428	2016 return uw_unit_v;
adamc@286	2017 }
adamc@286	2018
adam@1358	2019 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2020 unsigned int n = ch;
adam@1358	2021 int len;
adam@1358	2022 char *r;
adam@1358	2023
adam@1358	2024 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2025 r = ctx->heap.front;
adam@1358	2026 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2027 ctx->heap.front += len+1;
adam@1358	2028 return r;
adam@1358	2029 }
adam@1358	2030
adam@1358	2031 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2032 unsigned int n = ch;
adam@1358	2033 int len;
adam@1358	2034
adam@1358	2035 uw_check(ctx, INTS_MAX+3);
adam@1358	2036 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2037 ctx->page.front += len;
adam@1358	2038 return uw_unit_v;
adam@1358	2039 }
adam@1358	2040
adamc@311	2041 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2042 int len;
adamc@286	2043 char *r;
adamc@286	2044
adamc@311	2045 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2046 r = ctx->heap.front;
adamc@286	2047 sprintf(r, "%g%n", n, &len);
adamc@666	2048 ctx->heap.front += len+1;
adamc@286	2049 return r;
adamc@286	2050 }
adamc@286	2051
adamc@428	2052 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2053 int len;
adamc@286	2054
adamc@311	2055 uw_check(ctx, FLOATS_MAX);
adamc@666	2056 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2057 ctx->page.front += len;
adamc@428	2058
adamc@428	2059 return uw_unit_v;
adamc@286	2060 }
adamc@286	2061
adam@1365	2062 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2063 int len;
adam@1360	2064 char *r;
adam@1360	2065
adam@1360	2066 uw_check_heap(ctx, INTS_MAX);
adam@1360	2067 r = ctx->heap.front;
adamc@1377	2068 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2069 ctx->heap.front += len+1;
adam@1360	2070 return r;
adam@1360	2071 }
adam@1360	2072
adam@1365	2073 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2074 int len;
adam@1360	2075
adam@1360	2076 uw_check(ctx, INTS_MAX);
adam@1360	2077 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2078 ctx->page.front += len;
adam@1360	2079
adam@1360	2080 return uw_unit_v;
adam@1360	2081 }
adam@1360	2082
adam@1444	2083 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2084 char r, s2;
adamc@137	2085
adamc@311	2086 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2087
adamc@666	2088 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2089 unsigned char c = *s;
adamc@137	2090
adamc@137	2091 switch (c) {
adamc@137	2092 case '<':
adamc@137	2093 strcpy(s2, "<");
adamc@137	2094 s2 += 4;
adamc@137	2095 break;
adamc@137	2096 case '&':
adamc@137	2097 strcpy(s2, "&");
adamc@137	2098 s2 += 5;
adamc@137	2099 break;
adamc@137	2100 default:
adamc@1059	2101 *s2++ = c;
adamc@137	2102 }
adamc@137	2103 }
adamc@137	2104
adamc@137	2105 *s2++ = 0;
adamc@666	2106 ctx->heap.front = s2;
adamc@137	2107 return r;
adamc@135	2108 }
adamc@135	2109
adamc@428	2110 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2111 uw_check(ctx, strlen(s) * 6);
adamc@135	2112
adamc@135	2113 for (; *s; s++) {
adamc@1054	2114 unsigned char c = *s;
adamc@135	2115
adamc@135	2116 switch (c) {
adamc@135	2117 case '<':
adamc@311	2118 uw_write_unsafe(ctx, "<");
adamc@135	2119 break;
adamc@135	2120 case '&':
adamc@311	2121 uw_write_unsafe(ctx, "&");
adamc@135	2122 break;
adamc@135	2123 default:
adamc@1059	2124 uw_writec_unsafe(ctx, c);
adamc@135	2125 }
adamc@135	2126 }
adamc@428	2127
adamc@428	2128 return uw_unit_v;
adamc@135	2129 }
adamc@180	2130
adamc@311	2131 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2132 if (b == uw_Basis_False)
adamc@286	2133 return "False";
adamc@286	2134 else
adamc@286	2135 return "True";
adamc@286	2136 }
adamc@286	2137
adamc@428	2138 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2139 if (b == uw_Basis_False) {
adamc@311	2140 uw_check(ctx, 6);
adamc@666	2141 strcpy(ctx->page.front, "False");
adamc@666	2142 ctx->page.front += 5;
adamc@286	2143 } else {
adamc@311	2144 uw_check(ctx, 5);
adamc@666	2145 strcpy(ctx->page.front, "True");
adamc@666	2146 ctx->page.front += 4;
adamc@286	2147 }
adamc@428	2148
adamc@428	2149 return uw_unit_v;
adamc@286	2150 }
adamc@286	2151
adamc@436	2152 #define TIME_FMT "%x %X"
adamc@438	2153 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2154 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2155
adam@1629	2156 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2157
adamc@436	2158 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2159 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2160 }
adamc@436	2161
adamc@436	2162 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2163 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2164 }
adamc@436	2165
adam@1446	2166 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2167 int len;
adam@1446	2168 char *r;
adam@1446	2169
adam@1446	2170 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2171 r = ctx->heap.front;
adam@1446	2172 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2173 ctx->heap.front += len+1;
adam@1446	2174 return r;
adam@1446	2175 }
adam@1446	2176
adam@1446	2177 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2178 int len;
adam@1446	2179
adam@1446	2180 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2181 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2182 ctx->page.front += len;
adam@1446	2183
adam@1446	2184 return uw_unit_v;
adam@1446	2185 }
adam@1446	2186
adamc@821	2187 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2188 while (n >= 0) {
adam@1388	2189 if (*s == 0)
adam@1388	2190 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2191
adam@1388	2192 if (n == 0)
adam@1388	2193 return *s;
adam@1388	2194
adam@1388	2195 --n;
adam@1388	2196 ++s;
adam@1388	2197 }
adam@1388	2198
adam@1388	2199 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2200 }
adamc@821	2201
adamc@821	2202 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2203 while (n >= 0) {
adam@1388	2204 if (*s == 0 \|\| n == 0)
adam@1388	2205 return s;
adam@1388	2206
adam@1388	2207 --n;
adam@1388	2208 ++s;
adam@1388	2209 }
adam@1388	2210
adam@1388	2211 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2212 }
adamc@821	2213
adamc@828	2214 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2215 return strlen(s);
adamc@828	2216 }
adamc@828	2217
adam@1388	2218 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2219 while (n > 0) {
adam@1388	2220 if (*s == 0)
adam@1388	2221 return uw_Basis_False;
adam@1388	2222
adam@1388	2223 --n;
adam@1388	2224 ++s;
adam@1388	2225 }
adam@1388	2226
adam@1388	2227 return uw_Basis_True;
adam@1388	2228 }
adam@1388	2229
adamc@829	2230 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2231 return strchr(s, ch);
adamc@829	2232 }
adamc@829	2233
adamc@831	2234 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2235 return strcspn(s, chs);
adamc@831	2236 }
adamc@831	2237
adamc@829	2238 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2239 uw_Basis_string r = strchr(s, ch);
adamc@829	2240 if (r == NULL)
adamc@829	2241 return NULL;
adamc@829	2242 else {
adamc@829	2243 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2244 *nr = r - s;
adamc@829	2245 return nr;
adamc@829	2246 }
adamc@829	2247 }
adamc@829	2248
adam@1390	2249 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2250 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2251 if (r == NULL)
adam@1390	2252 return NULL;
adam@1390	2253 else {
adam@1390	2254 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2255 *nr = r - haystack;
adam@1390	2256 return nr;
adam@1390	2257 }
adam@1390	2258 }
adam@1390	2259
adamc@311	2260 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2261 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2262 char *s;
adamc@180	2263
adamc@311	2264 uw_check_heap(ctx, len);
adamc@180	2265
adamc@666	2266 s = ctx->heap.front;
adamc@180	2267
adamc@180	2268 strcpy(s, s1);
adamc@180	2269 strcat(s, s2);
adamc@666	2270 ctx->heap.front += len;
adamc@180	2271
adamc@180	2272 return s;
adamc@180	2273 }
adamc@278	2274
adamc@829	2275 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2276 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2277
adamc@829	2278 if (start < 0)
adamc@829	2279 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2280 if (len < 0)
adamc@829	2281 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2282 if (start + len > full_len)
adamc@829	2283 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2284
adamc@829	2285 if (start + len == full_len)
adamc@829	2286 return &s[start];
adamc@829	2287 else {
adamc@829	2288 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2289 memcpy(r, s+start, len);
adamc@829	2290 r[len] = 0;
adamc@829	2291 return r;
adamc@829	2292 }
adamc@829	2293
adamc@829	2294 }
adamc@829	2295
adamc@1023	2296 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2297 char *r;
adamc@1023	2298
adamc@1023	2299 uw_check_heap(ctx, 2);
adamc@1023	2300 r = ctx->heap.front;
adamc@1023	2301 r[0] = ch;
adamc@1023	2302 r[1] = 0;
adamc@1023	2303
adamc@1023	2304 ctx->heap.front += 2;
adamc@1023	2305
adamc@1023	2306 return r;
adamc@1023	2307 }
adamc@1023	2308
adamc@737	2309 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2310 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2311 char *s;
adamc@278	2312
adamc@311	2313 uw_check_heap(ctx, len);
adamc@278	2314
adamc@666	2315 s = ctx->heap.front;
adamc@278	2316
adamc@278	2317 strcpy(s, s1);
adamc@666	2318 ctx->heap.front += len;
adamc@278	2319
adamc@278	2320 return s;
adamc@278	2321 }
adamc@280	2322
adam@1295	2323 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2324 if (ctx->error_message[0]) {
adam@1295	2325 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2326 ctx->error_message[0] = 0;
adam@1295	2327 return s;
adam@1295	2328 } else
adam@1295	2329 return NULL;
adam@1295	2330 }
adam@1295	2331
adamc@737	2332 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2333 if (s1)
adamc@737	2334 return uw_strdup(ctx, s1);
adamc@493	2335 else
adamc@493	2336 return NULL;
adamc@493	2337 }
adamc@493	2338
adamc@742	2339 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2340 char *r = uw_malloc(ctx, len);
adamc@742	2341 memcpy(r, p, len);
adamc@742	2342 return r;
adamc@742	2343 }
adamc@280	2344
adamc@879	2345 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2346
adamc@311	2347 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2348 int len;
adamc@281	2349 char *r;
adamc@281	2350
adamc@311	2351 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2352 r = ctx->heap.front;
adamc@879	2353 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2354 ctx->heap.front += len+1;
adamc@281	2355 return r;
adamc@281	2356 }
adamc@281	2357
adamc@467	2358 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2359 if (n == NULL)
adamc@467	2360 return "NULL";
adamc@467	2361 else
adamc@467	2362 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2363 }
adamc@467	2364
adamc@879	2365 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879	2366
adamc@311	2367 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2368 int len;
adamc@281	2369 char *r;
adamc@281	2370
adamc@311	2371 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2372 r = ctx->heap.front;
adamc@879	2373 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2374 ctx->heap.front += len+1;
adamc@281	2375 return r;
adamc@281	2376 }
adamc@281	2377
adamc@467	2378 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2379 if (n == NULL)
adamc@467	2380 return "NULL";
adamc@467	2381 else
adamc@467	2382 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2383 }
adamc@467	2384
adamc@879	2385 int uw_Estrings = 1;
adamc@879	2386 char *uw_sqlsuffixString = "::text";
adamc@1011	2387 char *uw_sqlsuffixChar = "::char";
adamc@281	2388
adamc@311	2389 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2390 char r, s2;
adamc@280	2391
adamc@879	2392 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2393
adamc@666	2394 r = s2 = ctx->heap.front;
adamc@879	2395 if (uw_Estrings)
adamc@879	2396 *s2++ = 'E';
adamc@280	2397 *s2++ = '\'';
adamc@280	2398
adamc@280	2399 for (; *s; s++) {
adamc@280	2400 char c = *s;
adamc@280	2401
adamc@280	2402 switch (c) {
adamc@280	2403 case '\'':
adamc@885	2404 if (uw_Estrings)
adamc@885	2405 strcpy(s2, "\\'");
adamc@885	2406 else
adamc@885	2407 strcpy(s2, "''");
adamc@280	2408 s2 += 2;
adamc@280	2409 break;
adamc@280	2410 case '\\':
adamc@885	2411 if (uw_Estrings) {
adamc@885	2412 strcpy(s2, "\\\\");
adamc@885	2413 s2 += 2;
adamc@885	2414 } else
adamc@885	2415 *s2++ = '\\';
adamc@280	2416 break;
adamc@280	2417 default:
adamc@1150	2418 if (isprint((int)c))
adamc@280	2419 *s2++ = c;
adamc@879	2420 else if (uw_Estrings) {
adamc@737	2421 sprintf(s2, "\\%03o", c);
adamc@280	2422 s2 += 4;
adamc@280	2423 }
adamc@879	2424 else
adam@1689	2425 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2426 }
adamc@280	2427 }
adamc@280	2428
adamc@879	2429 *s2++ = '\'';
adamc@879	2430 strcpy(s2, uw_sqlsuffixString);
adamc@879	2431 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2432 return r;
adamc@280	2433 }
adamc@281	2434
adamc@1011	2435 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2436 char r, s2;
adamc@1011	2437
adamc@1011	2438 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2439
adamc@1011	2440 r = s2 = ctx->heap.front;
adamc@1011	2441 if (uw_Estrings)
adamc@1011	2442 *s2++ = 'E';
adamc@1011	2443 *s2++ = '\'';
adamc@1011	2444
adamc@1011	2445 switch (c) {
adamc@1011	2446 case '\'':
adamc@1011	2447 if (uw_Estrings)
adamc@1011	2448 strcpy(s2, "\\'");
adamc@1011	2449 else
adamc@1011	2450 strcpy(s2, "''");
adamc@1011	2451 s2 += 2;
adamc@1011	2452 break;
adamc@1011	2453 case '\\':
adamc@1011	2454 if (uw_Estrings) {
adamc@1011	2455 strcpy(s2, "\\\\");
adamc@1011	2456 s2 += 2;
adamc@1011	2457 } else
adamc@1011	2458 *s2++ = '\\';
adamc@1011	2459 break;
adamc@1011	2460 default:
adamc@1150	2461 if (isprint((int)c))
adamc@1011	2462 *s2++ = c;
adamc@1011	2463 else if (uw_Estrings) {
adamc@1011	2464 sprintf(s2, "\\%03o", c);
adamc@1011	2465 s2 += 4;
adamc@1011	2466 }
adamc@1011	2467 else
adamc@1011	2468 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2469 }
adamc@1011	2470
adamc@1011	2471 *s2++ = '\'';
adamc@1011	2472 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2473 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2474 return r;
adamc@1011	2475 }
adamc@1011	2476
adamc@879	2477 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2478
adamc@737	2479 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2480 char r, s2;
adamc@737	2481 size_t i;
adamc@737	2482
adamc@879	2483 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737	2484
adamc@737	2485 r = s2 = ctx->heap.front;
adamc@879	2486 if (uw_Estrings)
adamc@879	2487 *s2++ = 'E';
adamc@737	2488 *s2++ = '\'';
adamc@737	2489
adamc@737	2490 for (i = 0; i < b.size; ++i) {
adamc@737	2491 char c = b.data[i];
adamc@737	2492
adamc@737	2493 switch (c) {
adamc@737	2494 case '\'':
adamc@885	2495 if (uw_Estrings)
adamc@885	2496 strcpy(s2, "\\'");
adamc@885	2497 else
adamc@885	2498 strcpy(s2, "''");
adamc@737	2499 s2 += 2;
adamc@737	2500 break;
adamc@737	2501 case '\\':
adamc@885	2502 if (uw_Estrings) {
adamc@885	2503 strcpy(s2, "\\\\\\\\");
adamc@885	2504 s2 += 4;
adamc@885	2505 } else
adamc@885	2506 *s2++ = '\\';
adamc@737	2507 break;
adamc@737	2508 default:
adamc@1150	2509 if (isprint((int)c))
adamc@737	2510 *s2++ = c;
adamc@879	2511 else if (uw_Estrings) {
adamc@737	2512 sprintf(s2, "\\\\%03o", c);
adamc@737	2513 s2 += 5;
adamc@737	2514 }
adamc@879	2515 else
adamc@879	2516 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737	2517 }
adamc@737	2518 }
adamc@737	2519
adamc@879	2520 *s2++ = '\'';
adamc@879	2521 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2522 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2523 return r;
adamc@737	2524 }
adamc@737	2525
adamc@682	2526 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2527 int len;
adamc@682	2528 char *r;
adamc@682	2529 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2530
adamc@682	2531 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2532 r = ctx->heap.front;
adamc@879	2533 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2534 ctx->heap.front += len+1;
adamc@682	2535 return r;
adamc@682	2536 }
adamc@682	2537
adamc@682	2538 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2539 int len;
adamc@682	2540 char *r;
adamc@682	2541 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2542
adamc@682	2543 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2544 r = ctx->heap.front;
adamc@682	2545 sprintf(r, "%lld%n", combo, &len);
adamc@682	2546 ctx->heap.front += len+1;
adamc@682	2547 return r;
adamc@682	2548 }
adamc@682	2549
adamc@879	2550 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2551
adamc@682	2552 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2553 int len;
adamc@682	2554 char *r;
adamc@682	2555
adamc@682	2556 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2557 r = ctx->heap.front;
adamc@879	2558 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2559 ctx->heap.front += len+1;
adamc@682	2560 return r;
adamc@682	2561 }
adamc@682	2562
adamc@682	2563 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2564 int len;
adamc@682	2565 char *r;
adamc@682	2566
adamc@682	2567 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2568 r = ctx->heap.front;
adamc@682	2569 sprintf(r, "%u%n", cli, &len);
adamc@682	2570 ctx->heap.front += len+1;
adamc@682	2571 return r;
adamc@682	2572 }
adamc@682	2573
adamc@467	2574 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2575 if (s == NULL)
adamc@467	2576 return "NULL";
adamc@467	2577 else
adamc@467	2578 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2579 }
adamc@467	2580
adamc@311	2581 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2582 if (b == uw_Basis_False)
adamc@281	2583 return "FALSE";
adamc@281	2584 else
adamc@281	2585 return "TRUE";
adamc@281	2586 }
adamc@282	2587
adamc@467	2588 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2589 if (b == NULL)
adamc@467	2590 return "NULL";
adamc@467	2591 else
adamc@467	2592 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2593 }
adamc@467	2594
adamc@439	2595 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2596 size_t len;
adamc@682	2597 char r, s;
adam@1392	2598 struct tm stm = {};
adam@1392	2599 stm.tm_isdst = -1;
adamc@682	2600
adam@1365	2601 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2602 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2603 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1367	2604 if (t.microseconds) {
adam@1367	2605 r = uw_malloc(ctx, len + 21);
adam@1367	2606 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1367	2607 } else {
adam@1367	2608 r = uw_malloc(ctx, len + 14);
adam@1367	2609 sprintf(r, "'%s'::timestamp", s);
adam@1367	2610 }
adamc@682	2611 return r;
adamc@682	2612 } else
adamc@682	2613 return "<Invalid time>";
adamc@682	2614 }
adamc@682	2615
adamc@682	2616 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2617 size_t len;
adamc@439	2618 char *r;
adam@1392	2619 struct tm stm = {};
adam@1392	2620 stm.tm_isdst = -1;
adamc@439	2621
adam@1365	2622 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2623 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2624 r = ctx->heap.front;
adamc@439	2625 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2626 ctx->heap.front += len+1;
adamc@439	2627 return r;
adamc@439	2628 } else
adamc@439	2629 return "<Invalid time>";
adamc@439	2630 }
adamc@439	2631
adam@1364	2632 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2633 size_t len;
adam@1364	2634 char *r;
adam@1392	2635 struct tm stm = {};
adam@1392	2636 stm.tm_isdst = -1;
adam@1364	2637
adam@1365	2638 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2639 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2640 r = ctx->heap.front;
adam@1365	2641 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2642 ctx->heap.front += len;
adam@1365	2643 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2644 ctx->heap.front += 8;
adam@1364	2645 return r;
adam@1364	2646 } else
adam@1364	2647 return "<Invalid time>";
adam@1364	2648 }
adam@1364	2649
adamc@467	2650 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2651 if (t == NULL)
adamc@467	2652 return "NULL";
adamc@467	2653 else
adamc@467	2654 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2655 }
adamc@467	2656
adamc@311	2657 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2658 static uw_Basis_int true = 1;
adamc@311	2659 static uw_Basis_int false = 0;
adamc@282	2660
adamc@311	2661 if (b == uw_Basis_False)
adamc@282	2662 return (char *)&false;
adamc@282	2663 else
adamc@282	2664 return (char *)&true;
adamc@282	2665 }
adamc@284	2666
adamc@311	2667 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2668 int len;
adamc@284	2669 char *r;
adamc@284	2670
adamc@311	2671 uw_check_heap(ctx, INTS_MAX);
adamc@666	2672 r = ctx->heap.front;
adamc@284	2673 sprintf(r, "%lld%n", n, &len);
adamc@666	2674 ctx->heap.front += len+1;
adamc@284	2675 return r;
adamc@284	2676 }
adamc@285	2677
adamc@311	2678 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2679 int len;
adamc@285	2680 char *r;
adamc@285	2681
adamc@311	2682 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2683 r = ctx->heap.front;
adamc@285	2684 sprintf(r, "%g%n", n, &len);
adamc@666	2685 ctx->heap.front += len+1;
adamc@285	2686 return r;
adamc@285	2687 }
adamc@285	2688
adamc@821	2689 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2690 char *r = uw_malloc(ctx, 2);
adamc@821	2691 r[0] = ch;
adamc@821	2692 r[1] = 0;
adamc@821	2693 return r;
adamc@821	2694 }
adamc@821	2695
adamc@311	2696 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2697 if (b == uw_Basis_False)
adamc@285	2698 return "False";
adamc@285	2699 else
adamc@285	2700 return "True";
adamc@285	2701 }
adamc@288	2702
adam@1359	2703 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2704 size_t len;
adam@1352	2705 char *r;
adam@1392	2706 struct tm stm = {};
adam@1392	2707 stm.tm_isdst = -1;
adam@1352	2708
adam@1365	2709 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2710 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2711 r = ctx->heap.front;
adam@1352	2712 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2713 ctx->heap.front += len+1;
adam@1352	2714 return r;
adam@1352	2715 } else
adam@1352	2716 return "<Invalid time>";
adam@1352	2717 }
adam@1352	2718
adam@1629	2719 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2720 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2721 }
adam@1629	2722
adamc@311	2723 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2724 char *endptr;
adamc@311	2725 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2726
adamc@288	2727 if (s != '\0' && endptr == '\0') {
adamc@311	2728 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2729 *r = n;
adamc@288	2730 return r;
adamc@288	2731 } else
adamc@288	2732 return NULL;
adamc@288	2733 }
adamc@289	2734
adamc@311	2735 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2736 char *endptr;
adamc@311	2737 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2738
adamc@289	2739 if (s != '\0' && endptr == '\0') {
adamc@311	2740 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2741 *r = n;
adamc@289	2742 return r;
adamc@289	2743 } else
adamc@289	2744 return NULL;
adamc@289	2745 }
adamc@289	2746
adamc@821	2747 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2748 if (s[0] == 0) {
adamc@821	2749 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2750 r[0] = 0;
adamc@821	2751 return r;
adamc@821	2752 } else if (s[1] != 0)
adamc@821	2753 return NULL;
adamc@821	2754 else {
adamc@821	2755 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2756 r[0] = s[0];
adamc@821	2757 return r;
adamc@821	2758 }
adamc@821	2759 }
adamc@821	2760
adamc@311	2761 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2762 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2763 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2764
adamc@289	2765 if (!strcasecmp (s, "True"))
adamc@289	2766 return &true;
adamc@289	2767 else if (!strcasecmp (s, "False"))
adamc@289	2768 return &false;
adamc@289	2769 else
adamc@289	2770 return NULL;
adamc@289	2771 }
adamc@292	2772
adamc@436	2773 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2774 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2775 struct tm stm = {};
adam@1392	2776 stm.tm_isdst = -1;
adamc@436	2777
adamc@439	2778 if (dot) {
adamc@439	2779 *dot = 0;
adamc@439	2780 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2781 *dot = '.';
adamc@439	2782 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2783 r->seconds = mktime(&stm);
adam@1365	2784 r->microseconds = 0;
adamc@439	2785 return r;
adamc@439	2786 }
adamc@439	2787 else {
adamc@439	2788 *dot = '.';
adamc@439	2789 return NULL;
adamc@439	2790 }
adamc@436	2791 }
adamc@439	2792 else {
adamc@439	2793 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2794 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2795 r->seconds = mktime(&stm);
adam@1365	2796 r->microseconds = 0;
adamc@439	2797 return r;
adamc@439	2798 }
adamc@439	2799 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2800 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2801 r->seconds = mktime(&stm);
adam@1365	2802 r->microseconds = 0;
adamc@439	2803 return r;
adam@1632	2804 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2805 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2806 r->seconds = mktime(&stm);
adam@1632	2807 r->microseconds = 0;
adam@1632	2808 return r;
adamc@439	2809 }
adamc@439	2810 else
adamc@439	2811 return NULL;
adamc@439	2812 }
adamc@436	2813 }
adamc@436	2814
adam@1352	2815 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2816 char *end = strchr(s, 0);
adam@1374	2817 struct tm stm = {};
adam@1392	2818 stm.tm_isdst = -1;
adam@1352	2819
adam@1352	2820 if (strptime(s, fmt, &stm) == end) {
adam@1352	2821 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2822 r->seconds = mktime(&stm);
adam@1365	2823 r->microseconds = 0;
adam@1352	2824 return r;
adam@1352	2825 }
adam@1352	2826 else
adam@1352	2827 return NULL;
adam@1352	2828 }
adam@1352	2829
adamc@311	2830 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2831 char *endptr;
adamc@311	2832 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2833
adamc@292	2834 if (s != '\0' && endptr == '\0')
adamc@292	2835 return n;
adamc@292	2836 else
adam@1444	2837 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2838 }
adamc@293	2839
adamc@682	2840 #include <errno.h>
adamc@682	2841
adamc@678	2842 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2843 unsigned long long n;
adamc@682	2844
adamc@682	2845 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2846 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	2847 else {
adamc@682	2848 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2849 return ch;
adamc@682	2850 }
adamc@682	2851 }
adamc@682	2852
adamc@682	2853 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2854 char *endptr;
adamc@682	2855 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2856
adamc@678	2857 if (s != '\0' && endptr == '\0')
adamc@678	2858 return n;
adamc@678	2859 else
adam@1444	2860 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	2861 }
adamc@678	2862
adamc@311	2863 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2864 char *endptr;
adamc@311	2865 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2866
adamc@293	2867 if (s != '\0' && endptr == '\0')
adamc@293	2868 return n;
adamc@293	2869 else
adam@1444	2870 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2871 }
adamc@293	2872
adamc@821	2873 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2874 if (s[0] == 0)
adamc@821	2875 return 0;
adamc@821	2876 else if (s[1] != 0)
adam@1444	2877 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	2878 else
adamc@821	2879 return s[0];
adamc@821	2880 }
adamc@821	2881
adamc@311	2882 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2883 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2884 return uw_Basis_True;
adamc@296	2885 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2886 return uw_Basis_False;
adamc@293	2887 else
adam@1444	2888 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2889 }
adamc@436	2890
adam@1352	2891 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	2892 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	2893 struct tm stm = {};
adam@1392	2894 stm.tm_isdst = -1;
adam@1352	2895
adam@1352	2896 if (dot) {
adam@1352	2897 *dot = 0;
adam@1352	2898 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	2899 *dot = '.';
adam@1410	2900 char usec[] = "000000";
adam@1410	2901 int len = strlen(dot+1);
adam@1410	2902 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	2903 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	2904 return r;
adam@1352	2905 }
adam@1352	2906 else {
adam@1352	2907 *dot = '.';
adam@1444	2908 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	2909 }
adam@1352	2910 }
adam@1352	2911 else {
adam@1352	2912 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	2913 uw_Basis_time r = { mktime(&stm) };
adam@1365	2914 return r;
adam@1352	2915 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	2916 uw_Basis_time r = { mktime(&stm) };
adam@1365	2917 return r;
adam@1352	2918 } else
adam@1444	2919 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	2920 }
adam@1352	2921 }
adam@1352	2922
adamc@436	2923 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2924 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2925 struct tm stm = {};
adam@1392	2926 stm.tm_isdst = -1;
adamc@436	2927
adamc@438	2928 if (dot) {
adamc@438	2929 *dot = 0;
adamc@438	2930 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2931 *dot = '.';
adam@1365	2932 {
adam@1365	2933 uw_Basis_time r = { mktime(&stm) };
adam@1365	2934 return r;
adam@1365	2935 }
adamc@438	2936 }
adamc@438	2937 else {
adamc@438	2938 *dot = '.';
adam@1444	2939 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	2940 }
adamc@438	2941 }
adamc@438	2942 else {
adam@1365	2943 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	2944 uw_Basis_time r = { mktime(&stm) };
adam@1365	2945 return r;
adam@1365	2946 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	2947 uw_Basis_time r = { mktime(&stm) };
adam@1365	2948 return r;
adam@1632	2949 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2950 uw_Basis_time r = { mktime(&stm) };
adam@1632	2951 return r;
adam@1365	2952 } else
adam@1444	2953 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	2954 }
adamc@436	2955 }
adamc@457	2956
adam@1352	2957 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	2958 char *end = strchr(s, 0);
adamc@939	2959 struct tm stm = {};
adam@1392	2960 stm.tm_isdst = -1;
adamc@939	2961
adam@1365	2962 if (strptime(s, fmt, &stm) == end) {
adam@1365	2963 uw_Basis_time r = { mktime(&stm) };
adam@1365	2964 return r;
adam@1365	2965 } else
adam@1444	2966 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	2967 }
adamc@939	2968
adamc@742	2969 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	2970 char *r = ctx->heap.front;
adamc@742	2971 uw_Basis_blob b = {len, r};
adamc@742	2972
adamc@742	2973 uw_check_heap(ctx, len);
adamc@742	2974
adamc@742	2975 while (*s) {
adamc@742	2976 if (s[0] == '\\') {
adamc@742	2977 if (s[1] == '\\') {
adamc@742	2978 *r++ = '\\';
adamc@742	2979 s += 2;
adamc@1153	2980 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adamc@742	2981 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	2982 s += 4;
adamc@742	2983 }
adamc@742	2984 else {
adamc@742	2985 *r++ = '\\';
adamc@742	2986 ++s;
adamc@742	2987 }
adamc@742	2988 } else {
adamc@742	2989 *r++ = s[0];
adamc@742	2990 ++s;
adamc@742	2991 }
adamc@742	2992 }
adamc@742	2993
adamc@742	2994 b.size = r - ctx->heap.front;
adamc@742	2995 ctx->heap.front = r;
adamc@742	2996 return b;
adamc@742	2997 }
adamc@742	2998
adam@1402	2999 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3000
adamc@463	3001 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3002 int len = strlen(c);
adamc@854	3003 char *p = ctx->outHeaders.start;
adamc@474	3004
adamc@1134	3005 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3006 char *p2;
adamc@474	3007 p += 13;
adamc@474	3008 p2 = strchr(p, '=');
adamc@474	3009
adamc@474	3010 if (p2) {
adamc@474	3011 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3012
adamc@474	3013 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3014 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3015 return NULL;
adamc@1052	3016 else {
adamc@1052	3017 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3018 memcpy(ret, p2+1, sz);
adamc@1052	3019 ret[sz] = 0;
adamc@1052	3020 return ret;
adamc@1052	3021 }
adamc@474	3022 }
adamc@474	3023 }
adamc@474	3024 }
adamc@463	3025
adamc@1134	3026 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3027 char *p2;
adamc@1051	3028
adamc@854	3029 while (1) {
adamc@1051	3030 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3031 if ((p2 = strchr(p, ';'))) {
adamc@1051	3032 size_t n = p2 - (p + len);
adamc@1051	3033 char *r = uw_malloc(ctx, n);
adamc@1051	3034 memcpy(r, p + 1 + len, n-1);
adamc@1051	3035 r[n-1] = 0;
adamc@1051	3036 return r;
adamc@1051	3037 } else
adamc@1051	3038 return p + 1 + len;
adamc@1134	3039 } else if ((p = strchr(p, ';')))
adamc@854	3040 p += 2;
adamc@463	3041 else
adamc@463	3042 return NULL;
adamc@463	3043 }
adamc@463	3044 }
adamc@792	3045
adamc@792	3046 return NULL;
adamc@457	3047 }
adamc@462	3048
adamc@1050	3049 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	3050 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3051 uw_write_header(ctx, c);
adamc@462	3052 uw_write_header(ctx, "=");
adamc@462	3053 uw_write_header(ctx, v);
adamc@466	3054 uw_write_header(ctx, "; path=");
adamc@466	3055 uw_write_header(ctx, prefix);
adamc@1050	3056 if (expires) {
adamc@1050	3057 char formatted[30];
adam@1392	3058 struct tm tm = {};
adam@1392	3059 tm.tm_isdst = -1;
adamc@1050	3060
adam@1365	3061 gmtime_r(&expires->seconds, &tm);
adamc@1050	3062
adamc@1050	3063 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3064
adamc@1050	3065 uw_write_header(ctx, "; expires=");
adamc@1050	3066 uw_write_header(ctx, formatted);
adamc@1050	3067 }
adamc@1050	3068 if (secure)
adamc@1050	3069 uw_write_header(ctx, "; secure");
adamc@462	3070 uw_write_header(ctx, "\r\n");
adamc@462	3071
adamc@462	3072 return uw_unit_v;
adamc@462	3073 }
adamc@667	3074
adamc@1050	3075 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3076 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3077 uw_write_header(ctx, c);
adamc@1050	3078 uw_write_header(ctx, "=; path=");
adamc@1050	3079 uw_write_header(ctx, prefix);
adamc@1052	3080 uw_write_header(ctx, "; " THE_PAST "\r\n");
adamc@1050	3081
adamc@1050	3082 return uw_unit_v;
adamc@1050	3083 }
adamc@1050	3084
adamc@1113	3085 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3086
adamc@682	3087 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3088 unsigned i;
adamc@682	3089 delta *d;
adamc@671	3090
adamc@682	3091 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3092 if (ctx->deltas[i].client == client)
adamc@682	3093 return &ctx->deltas[i];
adamc@671	3094
adamc@682	3095 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3096 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3097 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3098
adamc@682	3099 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3100 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3101 }
adamc@671	3102
adamc@682	3103 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3104 d->client = client;
adam@1369	3105 uw_buffer_reset(&d->msgs);
adamc@682	3106 return d;
adamc@671	3107 }
adamc@671	3108
adamc@668	3109 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3110 if (ctx->client == NULL)
adamc@682	3111 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3112
adamc@682	3113 return new_channel(ctx->client);
adamc@668	3114 }
adamc@668	3115
adamc@668	3116 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3117 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3118 size_t len;
adamc@682	3119 int preLen;
adamc@682	3120 char pre[INTS_MAX + 2];
adamc@668	3121
adamc@682	3122 len = strlen(msg);
adamc@682	3123
adamc@682	3124 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3125
adam@1369	3126 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3127 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3128 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3129
adamc@671	3130 return uw_unit_v;
adamc@668	3131 }
adamc@671	3132
adam@1327	3133 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3134 int i;
adamc@1131	3135 cleanup *cl;
adamc@1131	3136
adamc@1131	3137 if (ctx->client)
adamc@1131	3138 release_client(ctx->client);
adamc@1131	3139
adamc@1131	3140 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3141 cl->func(cl->arg);
adamc@1131	3142
adamc@1131	3143 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3144
adamc@1131	3145 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3146 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3147 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3148
adamc@1131	3149 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3150 if (ctx->transactionals[i].free)
adam@1327	3151 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3152
adamc@1144	3153 return ctx->app ? ctx->app->db_rollback(ctx) : 0;
adamc@1131	3154 }
adamc@1131	3155
adam@1728	3156 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@1728	3157
adamc@671	3158 void uw_commit(uw_context ctx) {
adamc@1104	3159 int i;
adamc@1104	3160
adamc@1131	3161 if (uw_has_error(ctx)) {
adam@1327	3162 uw_rollback(ctx, 0);
adamc@1131	3163 return;
adamc@1131	3164 }
adamc@1131	3165
adamc@1104	3166 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3167 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3168 if (ctx->transactionals[i].commit) {
adamc@1083	3169 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3170 if (uw_has_error(ctx)) {
adam@1327	3171 uw_rollback(ctx, 0);
adamc@1131	3172 return;
adamc@1131	3173 }
adamc@1131	3174 }
adamc@771	3175
adamc@1104	3176 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3177 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3178 if (ctx->transactionals[i].commit) {
adamc@1083	3179 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3180 if (uw_has_error(ctx)) {
adam@1327	3181 uw_rollback(ctx, 0);
adamc@1131	3182 return;
adamc@1131	3183 }
adamc@1131	3184 }
adamc@1131	3185
adamc@1131	3186 if (ctx->app->db_commit(ctx)) {
adamc@1131	3187 uw_set_error_message(ctx, "Error running SQL COMMIT");
adamc@1131	3188 return;
adamc@1131	3189 }
adamc@682	3190
adamc@682	3191 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3192 delta *d = &ctx->deltas[i];
adamc@682	3193 client *c = find_client(d->client);
adamc@682	3194
adam@1551	3195 assert (c != NULL);
adam@1551	3196 assert(c->mode == USED);
adamc@682	3197
adam@1447	3198 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3199 }
adamc@682	3200
adamc@682	3201 if (ctx->client)
adamc@685	3202 release_client(ctx->client);
adamc@771	3203
adamc@1104	3204 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3205 if (ctx->transactionals[i].free)
adam@1327	3206 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3207
vshabanoff@1726	3208 uw_check(ctx, 1);
vshabanoff@1726	3209 *ctx->page.front = 0;
adam@1413	3210
adam@1728	3211 if (!ctx->returning_indirectly && !strncmp(ctx->page.start, begin_xhtml, sizeof begin_xhtml - 1)) {
adam@1728	3212 char *s;
adam@1728	3213
adam@1728	3214 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1728	3215 s = ctx->page.start + sizeof begin_xhtml - 1;
adam@1728	3216 s = strchr(s, '<');
adam@1728	3217 if (s == NULL) {
adam@1728	3218 // Weird. Document has no tags!
adam@1728	3219
adam@1728	3220 uw_write(ctx, "<head></head><body></body>");
adam@1728	3221 uw_check(ctx, 1);
adam@1728	3222 *ctx->page.front = 0;
adam@1728	3223 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3224 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3225
adam@1729	3226 // Any freeform JavaScript to include?
adam@1729	3227 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3228 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3229 size_t lenP = lenH + 40 + len;
adam@1729	3230 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3231
adam@1729	3232 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3233 start += ctx->page.start - oldPage;
adam@1729	3234 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3235 ctx->page.front += lenP;
adam@1729	3236 memcpy(start, ctx->script_header, lenH);
adam@1729	3237 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3238 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3239 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3240 } else {
adam@1729	3241 size_t lenH = strlen(ctx->script_header);
adam@1729	3242 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3243
adam@1729	3244 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3245 start += ctx->page.start - oldPage;
adam@1729	3246 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3247 ctx->page.front += lenH;
adam@1729	3248 memcpy(start, ctx->script_header, lenH);
adam@1729	3249 }
adam@1728	3250 } else {
adam@1728	3251 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3252
adam@1729	3253 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3254 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3255 size_t lenP = lenH + 53 + len;
adam@1729	3256 char start = s, oldPage = ctx->page.start;
adam@1729	3257
adam@1729	3258 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3259 start += ctx->page.start - oldPage;
adam@1729	3260 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3261 ctx->page.front += lenP;
adam@1729	3262 memcpy(start, "<head>", 6);
adam@1729	3263 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3264 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3265 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3266 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3267 } else {
adam@1729	3268 size_t lenH = strlen(ctx->script_header);
adam@1729	3269 size_t lenP = lenH + 13;
adam@1729	3270 char start = s, oldPage = ctx->page.start;
adam@1729	3271
adam@1729	3272 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3273 start += ctx->page.start - oldPage;
adam@1729	3274 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3275 ctx->page.front += lenP;
adam@1729	3276 memcpy(start, "<head>", 6);
adam@1729	3277 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3278 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3279 }
adamc@916	3280 }
adamc@916	3281 }
adamc@671	3282 }
adamc@671	3283
adamc@683	3284
adamc@1113	3285 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3286
adamc@771	3287 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3288 uw_callback_with_retry free) {
adamc@771	3289 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3290 if (ctx->used_transactionals+1 > uw_transactionals_max)
adamc@1113	3291 uw_error(ctx, FATAL, "Exceeded limit on number of transactionals");
adamc@1084	3292 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3293 ++ctx->n_transactionals;
adamc@771	3294 }
adamc@771	3295
adamc@771	3296 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3297 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3298 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3299 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	3300 }
adamc@771	3301
adamc@683	3302
adamc@683	3303 // "Garbage collection"
adamc@683	3304
adamc@1121	3305 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3306 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3307
adamc@1121	3308 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3309 int r = setjmp(ctx->jmp_buf);
adamc@683	3310
adamc@1121	3311 if (r == 0)
adamc@1121	3312 uw_do_expunge(ctx, cli, data);
adamc@1121	3313 else
adamc@1121	3314 ctx->app->db_rollback(ctx);
adamc@1121	3315
adamc@1121	3316 uw_post_expunge(ctx, data);
adamc@683	3317
adamc@683	3318 return r;
adamc@683	3319 }
adamc@683	3320
adamc@683	3321 void uw_prune_clients(uw_context ctx) {
adamc@683	3322 client c, next, *prev = NULL;
adamc@683	3323 time_t cutoff;
adamc@683	3324
adamc@1094	3325 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3326
adamc@683	3327 pthread_mutex_lock(&clients_mutex);
adam@1707	3328 pruning_thread = pthread_self();
adam@1707	3329 pruning_thread_initialized = 1;
adamc@683	3330
adamc@683	3331 for (c = clients_used; c; c = next) {
adamc@683	3332 next = c->next;
adamc@683	3333 pthread_mutex_lock(&c->lock);
adamc@685	3334 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3335 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3336 if (prev)
adamc@683	3337 prev->next = next;
adamc@683	3338 else
adamc@683	3339 clients_used = next;
adamc@684	3340 uw_reset(ctx);
adamc@683	3341 while (fk == UNLIMITED_RETRY) {
adamc@1121	3342 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3343 if (fk == UNLIMITED_RETRY)
adamc@684	3344 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3345 }
adamc@684	3346 if (fk == SUCCESS)
adamc@684	3347 free_client(c);
adamc@1121	3348 else
adamc@856	3349 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3350 }
adamc@683	3351 else
adamc@683	3352 prev = c;
adamc@683	3353 pthread_mutex_unlock(&c->lock);
adamc@683	3354 }
adamc@683	3355
adamc@683	3356 pthread_mutex_unlock(&clients_mutex);
adamc@683	3357 }
adamc@687	3358
adamc@687	3359 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3360 int r = setjmp(ctx->jmp_buf);
adamc@687	3361
adamc@687	3362 if (r == 0) {
adamc@1094	3363 if (ctx->app->db_begin(ctx))
adamc@687	3364 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@1094	3365 ctx->app->initializer(ctx);
adamc@1094	3366 if (ctx->app->db_commit(ctx))
adamc@687	3367 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3368 }
adamc@687	3369
adamc@687	3370 return r;
adamc@687	3371 }
adamc@717	3372
adamc@1065	3373 static int url_bad(uw_Basis_string s) {
adamc@1065	3374 for (; *s; ++s)
adamc@1153	3375 if (!isgraph((int)*s))
adamc@1065	3376 return 1;
adamc@1065	3377
adamc@1065	3378 return 0;
adamc@1065	3379 }
adamc@1065	3380
adamc@717	3381 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3382 if (url_bad(s))
adamc@1065	3383 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3384 if (ctx->app->check_url(s))
adamc@770	3385 return s;
adamc@770	3386 else
adamc@770	3387 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3388 }
adamc@734	3389
adamc@770	3390 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3391 if (url_bad(s))
adamc@1065	3392 return NULL;
adamc@1094	3393 if (ctx->app->check_url(s))
adamc@770	3394 return s;
adamc@770	3395 else
adamc@770	3396 return NULL;
adamc@770	3397 }
adamc@770	3398
adam@1465	3399 static int mime_format(const char *s) {
adamc@770	3400 for (; *s; ++s)
adamc@1153	3401 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.')
adamc@770	3402 return 0;
adamc@770	3403
adamc@770	3404 return 1;
adamc@770	3405 }
adamc@770	3406
adamc@741	3407 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3408 if (!mime_format(s))
adamc@770	3409 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3410
adamc@1094	3411 if (ctx->app->check_mime(s))
adamc@770	3412 return s;
adamc@770	3413 else
adamc@770	3414 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3415 }
adamc@770	3416
adamc@770	3417 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3418 if (!mime_format(s))
adamc@770	3419 return NULL;
adamc@770	3420
adamc@1094	3421 if (ctx->app->check_mime(s))
adamc@770	3422 return s;
adamc@770	3423 else
adamc@770	3424 return NULL;
adamc@741	3425 }
adamc@741	3426
adam@1465	3427 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3428 if (!mime_format(s))
adam@1465	3429 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3430
adam@1465	3431 if (ctx->app->check_requestHeader(s))
adam@1465	3432 return s;
adam@1465	3433 else
adam@1465	3434 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3435 }
adam@1465	3436
adam@1465	3437 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3438 if (!mime_format(s))
adam@1465	3439 return NULL;
adam@1465	3440
adam@1465	3441 if (ctx->app->check_requestHeader(s))
adam@1465	3442 return s;
adam@1465	3443 else
adam@1465	3444 return NULL;
adam@1465	3445 }
adam@1465	3446
adam@1465	3447 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3448 if (!mime_format(s))
adam@1465	3449 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3450
adam@1465	3451 if (ctx->app->check_responseHeader(s))
adam@1465	3452 return s;
adam@1465	3453 else
adam@1465	3454 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3455 }
adam@1465	3456
adam@1465	3457 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3458 if (!mime_format(s))
adam@1465	3459 return NULL;
adam@1465	3460
adam@1465	3461 if (ctx->app->check_responseHeader(s))
adam@1465	3462 return s;
adam@1465	3463 else
adam@1465	3464 return NULL;
adam@1465	3465 }
adam@1465	3466
adam@1465	3467 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3468 return uw_Basis_requestHeader(ctx, name);
adam@1465	3469 }
adam@1465	3470
adam@1465	3471 static int mime_value_format(const char *s) {
adam@1465	3472 for (; *s; ++s)
adam@1465	3473 if (s == '\r' \|\| s == '\n')
adam@1465	3474 return 0;
adam@1465	3475
adam@1465	3476 return 1;
adam@1465	3477 }
adam@1465	3478
adam@1465	3479 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3480 if (!mime_value_format(value))
adam@1465	3481 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3482
adam@1465	3483 uw_write_header(ctx, name);
adam@1465	3484 uw_write_header(ctx, ": ");
adam@1465	3485 uw_write_header(ctx, value);
adam@1465	3486 uw_write_header(ctx, "\r\n");
adam@1465	3487
adam@1465	3488 return uw_unit_v;
adam@1465	3489 }
adam@1465	3490
adamc@734	3491 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3492 return s ? s : "";
adamc@734	3493 }
adamc@734	3494
adamc@734	3495 extern int uw_hash_blocksize;
adamc@734	3496
adamc@734	3497 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3498 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3499 int i;
adamc@734	3500
adamc@734	3501 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3502 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3503
adamc@734	3504 return r;
adamc@734	3505 }
adamc@734	3506
adam@1512	3507 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3508 * optimizations that would enable timing attacks. See:
adam@1512	3509 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3510 */
adam@1512	3511 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3512 int i, x = 0, len1 = strlen(s1);
adam@1512	3513
adam@1512	3514 if (len1 != strlen(s2)) return 0;
adam@1512	3515
adam@1512	3516 for (i = 0; i < len1; ++i) {
adam@1512	3517 __asm__ __volatile__ ("");
adam@1512	3518 x \|= s1[i] ^ s2[i];
adam@1512	3519 }
adam@1512	3520
adam@1512	3521 return x == 0;
adam@1512	3522 }
adam@1512	3523
adamc@734	3524 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@1094	3525 return ctx->app->cookie_sig(ctx);
adamc@734	3526 }
adamc@737	3527
adamc@737	3528 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3529 return f.name;
adamc@737	3530 }
adamc@737	3531
adamc@740	3532 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3533 return f.type;
adamc@740	3534 }
adamc@740	3535
adamc@745	3536 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3537 return b.size;
adamc@745	3538 }
adamc@745	3539
adamc@1119	3540 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3541 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3542
adamc@1119	3543 return b;
adamc@1119	3544 }
adamc@1119	3545
adamc@737	3546 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3547 return f.data;
adamc@737	3548 }
adamc@741	3549
adam@1347	3550 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3551 return pb.type;
adam@1347	3552 }
adam@1347	3553
adam@1347	3554 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3555 return pb.data;
adam@1347	3556 }
adam@1347	3557
adam@1471	3558 static char *old_headers(uw_context ctx) {
adam@1471	3559 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3560 return NULL;
adam@1471	3561 else {
adam@1471	3562 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3563
adam@1471	3564 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3565 return NULL;
adam@1471	3566 else {
adam@1471	3567 s = strchr(s+15, '\n');
adam@1471	3568 if (s == NULL)
adam@1471	3569 return NULL;
adam@1471	3570 else
adam@1471	3571 return uw_strdup(ctx, s+1);
adam@1471	3572 }
adam@1471	3573 }
adam@1471	3574 }
adam@1471	3575
adamc@741	3576 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3577 cleanup *cl;
adamc@741	3578 int len;
adam@1471	3579 char *oldh;
adamc@741	3580
adam@1451	3581 if (!ctx->allowed_to_return_indirectly)
adam@1451	3582 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3583
adamc@1065	3584 ctx->returning_indirectly = 1;
adam@1471	3585 oldh = old_headers(ctx);
adam@1369	3586 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3587 uw_buffer_reset(&ctx->page);
adamc@741	3588
adamc@856	3589 uw_write_header(ctx, on_success);
adamc@856	3590 uw_write_header(ctx, "Content-Type: ");
adamc@741	3591 uw_write_header(ctx, mimeType);
adamc@741	3592 uw_write_header(ctx, "\r\nContent-Length: ");
adam@1369	3593 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3594 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3595 ctx->outHeaders.front += len;
adamc@1066	3596 uw_write_header(ctx, "\r\n");
adam@1471	3597 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3598
adam@1369	3599 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3600
adamc@741	3601 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3602 cl->func(cl->arg);
adamc@741	3603
adamc@741	3604 ctx->cleanup_front = ctx->cleanup;
adamc@741	3605
adamc@1065	3606 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3607 }
adamc@1065	3608
adamc@1065	3609 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3610 cleanup *cl;
adamc@1066	3611 char *s;
adam@1471	3612 char *oldh;
adamc@1065	3613
adam@1451	3614 if (!ctx->allowed_to_return_indirectly)
adam@1451	3615 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3616
adamc@1065	3617 ctx->returning_indirectly = 1;
adam@1471	3618 oldh = old_headers(ctx);
adam@1369	3619 uw_buffer_reset(&ctx->page);
adam@1369	3620 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3621 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3622 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3623 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3624
adam@1409	3625 if (on_success[0])
adam@1409	3626 uw_write_header(ctx, on_redirect);
adam@1409	3627 else
adam@1409	3628 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3629 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3630 if (s) {
adamc@1066	3631 char *s2;
adam@1409	3632 if (s[0] == '\n') ++s;
adam@1409	3633 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3634 *s2 = 0;
adamc@1066	3635 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3636 uw_write_header(ctx, s);
adamc@1066	3637 uw_write_header(ctx, "\n");
adamc@1066	3638 }
adamc@1066	3639 }
adamc@1066	3640 }
adamc@1066	3641
adamc@1065	3642 uw_write_header(ctx, "Location: ");
adamc@1065	3643 uw_write_header(ctx, url);
adamc@1065	3644 uw_write_header(ctx, "\r\n\r\n");
adam@1471	3645 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	3646
adamc@1065	3647 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3648 cl->func(cl->arg);
adamc@1065	3649
adamc@1065	3650 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3651
adamc@1065	3652 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3653 }
adamc@874	3654
adamc@874	3655 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	3656 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	3657
adamc@874	3658 for (; *s; ++s) {
adamc@874	3659 if (s[0] == '\'') {
adamc@874	3660 *r++ = '\'';
adamc@874	3661 for (++s; *s; ++s) {
adamc@874	3662 if (s[0] == '\'') {
adamc@874	3663 *r++ = '\'';
adamc@874	3664 break;
adamc@874	3665 } else if (s[0] == '\\') {
adam@1467	3666 *r++ = '\\';
adam@1467	3667 *r++ = s[1];
adam@1467	3668 ++s;
adamc@874	3669 } else
adamc@874	3670 *r++ = s[0];
adamc@874	3671 }
adamc@874	3672 if (*s == 0) break;
adam@1467	3673 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	3674 s += 3;
adamc@874	3675 else
adamc@874	3676 *r++ = s[0];
adamc@874	3677 }
adamc@874	3678
adam@1467	3679 *r = 0;
adam@1467	3680 return ret;
adamc@874	3681 }
adamc@874	3682
adamc@922	3683 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3684 va_list ap;
adamc@922	3685 size_t len = 1;
adamc@922	3686 char s, r, *s2;
adamc@922	3687
adamc@922	3688 va_start(ap, ctx);
adamc@922	3689 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3690 len += strlen(s);
adamc@922	3691 va_end(ap);
adamc@922	3692
adamc@922	3693 r = uw_malloc(ctx, len);
adamc@922	3694 va_start(ap, ctx);
adamc@922	3695 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3696 while (*s)
adamc@922	3697 s2++ = s++;
adamc@922	3698 va_end(ap);
adamc@922	3699 *s2 = 0;
adamc@922	3700
adamc@922	3701 return r;
adamc@922	3702 }
adamc@1006	3703
adam@1365	3704 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	3705
adamc@1006	3706 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	3707 uw_Basis_time r = { time(NULL) };
adam@1365	3708 return r;
adamc@1006	3709 }
adamc@1061	3710
adam@1369	3711 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	3712 tm.seconds += n;
adam@1365	3713 return tm;
adamc@1138	3714 }
adamc@1138	3715
adam@1514	3716 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	3717 return difftime(tm2.seconds, tm1.seconds);
adam@1514	3718 }
adam@1514	3719
adam@1685	3720 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	3721 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	3722 }
adam@1685	3723
adam@1685	3724 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	3725 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	3726 }
adam@1685	3727
adam@1514	3728 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	3729 return tm.seconds;
adam@1514	3730 }
adam@1514	3731
adamc@1061	3732 void uw_get_global(uw_context ctx, char name) {
adamc@1061	3733 int i;
adamc@1061	3734
adamc@1061	3735 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3736 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	3737 return ctx->globals[i].data;
adamc@1061	3738
adamc@1061	3739 return NULL;
adamc@1061	3740 }
adamc@1061	3741
adamc@1113	3742 size_t uw_globals_max = SIZE_MAX;
adamc@1113	3743
adamc@1061	3744 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	3745 int i;
adamc@1061	3746
adamc@1061	3747 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3748 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	3749 if (ctx->globals[i].free)
adamc@1061	3750 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	3751 ctx->globals[i].data = data;
adamc@1061	3752 ctx->globals[i].free = free;
adamc@1061	3753 return;
adamc@1061	3754 }
adamc@1089	3755
adamc@1113	3756 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	3757 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	3758
adamc@1061	3759 ++ctx->n_globals;
adamc@1061	3760 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	3761 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	3762 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	3763 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	3764 }
adamc@1061	3765
adamc@1061	3766 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	3767 return !!isalnum((int)c);
adamc@1061	3768 }
adamc@1061	3769
adamc@1061	3770 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	3771 return !!isalpha((int)c);
adamc@1061	3772 }
adamc@1061	3773
adamc@1061	3774 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	3775 return !!isblank((int)c);
adamc@1061	3776 }
adamc@1061	3777
adamc@1061	3778 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	3779 return !!iscntrl((int)c);
adamc@1061	3780 }
adamc@1061	3781
adamc@1061	3782 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3783 return !!isdigit((int)c);
adamc@1061	3784 }
adamc@1061	3785
adamc@1061	3786 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	3787 return !!isgraph((int)c);
adamc@1061	3788 }
adamc@1061	3789
adamc@1061	3790 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3791 return !!islower((int)c);
adamc@1061	3792 }
adamc@1061	3793
adamc@1061	3794 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	3795 return !!isprint((int)c);
adamc@1061	3796 }
adamc@1061	3797
adamc@1061	3798 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	3799 return !!ispunct((int)c);
adamc@1061	3800 }
adamc@1061	3801
adamc@1061	3802 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	3803 return !!isspace((int)c);
adamc@1061	3804 }
adamc@1063	3805
adamc@1061	3806 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3807 return !!isupper((int)c);
adamc@1061	3808 }
adamc@1061	3809
adamc@1061	3810 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3811 return !!isxdigit((int)c);
adamc@1061	3812 }
adamc@1061	3813
adamc@1061	3814 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3815 return tolower((int)c);
adamc@1061	3816 }
adamc@1061	3817
adamc@1061	3818 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3819 return toupper((int)c);
adamc@1061	3820 }
adamc@1066	3821
adamc@1128	3822 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	3823 return (unsigned char)c;
adamc@1128	3824 }
adamc@1128	3825
adamc@1128	3826 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	3827 return n;
adamc@1128	3828 }
adamc@1128	3829
adamc@1066	3830 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	3831 return ctx->current_url;
adamc@1066	3832 }
adamc@1066	3833
adamc@1066	3834 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	3835 ctx->current_url = s;
adamc@1066	3836 }
adamc@1114	3837
adamc@1114	3838 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	3839 ctx->deadline = n;
adamc@1114	3840 }
adamc@1114	3841
adamc@1114	3842 void uw_check_deadline(uw_context ctx) {
adamc@1114	3843 if (uw_time > ctx->deadline)
adamc@1114	3844 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	3845 }
adamc@1115	3846
adamc@1115	3847 size_t uw_database_max = SIZE_MAX;
adamc@1120	3848
adam@1389	3849 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@1389	3850 fprintf(stderr, "%s\n", s);
adam@1389	3851 return 0;
adam@1389	3852 }
adam@1389	3853
adamc@1120	3854 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
adam@1334	3855 if (ctx->log_debug)
adam@1334	3856 ctx->log_debug(ctx->logger_data, "%s\n", s);
adam@1334	3857 else
adam@1334	3858 fprintf(stderr, "%s\n", s);
adamc@1120	3859 return uw_unit_v;
adamc@1120	3860 }
adamc@1250	3861
adamc@1250	3862 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@1486	3863 uw_Basis_int ret;
adam@1486	3864 int r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@1486	3865
adam@1486	3866 if (r)
adam@1486	3867 return abs(ret);
adam@1486	3868 else
adam@1486	3869 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	3870 }
adam@1347	3871
adam@1347	3872 void uw_noPostBody(uw_context ctx) {
adam@1347	3873 ctx->hasPostBody = 0;
adam@1347	3874 }
adam@1347	3875
adam@1347	3876 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3877 ctx->hasPostBody = 1;
adam@1347	3878 ctx->postBody = pb;
adam@1347	3879 }
adam@1347	3880
adam@1347	3881 int uw_hasPostBody(uw_context ctx) {
adam@1347	3882 return ctx->hasPostBody;
adam@1347	3883 }
adam@1347	3884
adam@1386	3885 void uw_isPost(uw_context ctx) {
adam@1386	3886 ctx->isPost = 1;
adam@1386	3887 }
adam@1386	3888
adam@1386	3889 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	3890 return ctx->isPost;
adam@1386	3891 }
adam@1386	3892
adam@1485	3893 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	3894 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	3895 }
adam@1485	3896
adam@1370	3897 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	3898 ctx->queryString = s;
adam@1370	3899 }
adam@1370	3900
adam@1370	3901 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	3902 return ctx->queryString;
adam@1370	3903 }
adam@1370	3904
adam@1347	3905 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	3906 if (ctx->hasPostBody)
adam@1347	3907 return ctx->postBody;
adam@1347	3908 else
adam@1347	3909 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	3910 }
adam@1349	3911
adam@1349	3912 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	3913 int r = setjmp(ctx->jmp_buf);
adam@1349	3914
adam@1349	3915 if (r == 0) {
adam@1418	3916 if (ctx->app->db_begin(ctx))
adam@1418	3917 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1418	3918
adam@1349	3919 callback(ctx);
adam@1349	3920 }
adam@1349	3921
adam@1349	3922 return r;
adam@1349	3923 }
adam@1360	3924
adam@1360	3925 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	3926 char buf[14];
adam@1397	3927 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	3928 }
adam@1365	3929
adam@1365	3930 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	3931 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	3932 }
adam@1365	3933
adam@1365	3934 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	3935 return !!(t1.seconds < t2.seconds \|\| t1.microseconds < t2.microseconds);
adam@1365	3936 }
adam@1365	3937
adam@1365	3938 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	3939 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	3940 }
adam@1365	3941
adam@1372	3942 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	3943 struct tm stm = {};
adam@1375	3944 char *end = strchr(s, 0);
adam@1449	3945 stm.tm_isdst = -1;
adam@1375	3946
adam@1632	3947 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	3948 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	3949
kkallio@1448	3950 r->seconds = timegm(&stm);
adam@1373	3951 r->microseconds = 0;
adam@1373	3952
adam@1373	3953 return r;
adam@1374	3954 }
adam@1374	3955 else
adam@1373	3956 return NULL;
adam@1372	3957 }
adam@1407	3958
adam@1407	3959 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	3960 int r = setjmp(ctx->jmp_buf);
adam@1407	3961
adam@1407	3962 if (ctx->app->on_error) {
adam@1407	3963 if (r == 0) {
adam@1407	3964 if (ctx->app->db_begin(ctx))
adam@1407	3965 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1407	3966
adam@1409	3967 uw_buffer_reset(&ctx->outHeaders);
adam@1409	3968 if (on_success[0])
adam@1409	3969 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	3970 else
adam@1409	3971 uw_write_header(ctx, "Status: ");
adam@1409	3972 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1407	3973 uw_write_header(ctx, "Content-type: text/html\r\n\r\n");
adam@1407	3974 uw_write(ctx, begin_xhtml);
adam@1407	3975 ctx->app->on_error(ctx, msg);
adam@1407	3976 uw_write(ctx, "</html>");
adam@1407	3977 }
adam@1407	3978
adam@1407	3979 return r;
adam@1407	3980 } else
adam@1407	3981 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	3982 }
adam@1451	3983
adam@1451	3984 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	3985 ctx->allowed_to_return_indirectly = 1;
adam@1451	3986 }
adam@1483	3987
adam@1483	3988 void uw_cutErrorLocation(char *s) {
adam@1483	3989 char *s2;
adam@1483	3990
adam@1483	3991 s2 = strstr(s, ": ");
adam@1483	3992 if (s2 == NULL \|\| strcspn(s, "<&") < s2 - s)
adam@1483	3993 return;
adam@1483	3994
adam@1483	3995 memmove(s, s2+2, strlen(s2+2)+1);
adam@1483	3996 }
adam@1556	3997
adam@1556	3998 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	3999 int len;
adam@1703	4000 char *r;
adam@1703	4001
adam@1703	4002 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4003 r = ctx->heap.front;
adam@1703	4004 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4005 ctx->heap.front += len+1;
adam@1703	4006 return r;
adam@1556	4007 }
adam@1571	4008
adam@1571	4009 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4010 return n;
adam@1571	4011 }
adam@1571	4012
adam@1571	4013 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4014 return ceil(n);
adam@1571	4015 }
adam@1571	4016
adam@1571	4017 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4018 return trunc(n);
adam@1571	4019 }
adam@1571	4020
adam@1571	4021 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4022 return round(n);
adam@1571	4023 }

Mercurial > urweb

annotate src/c/urweb.c @ 1729:6817ddd6cf1f