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

annotate src/c/urweb.c @ 1361:7a436b6267ab

Fix soundness bug in Effectize, where it missed some functions that might have effectful RPCs

author	Adam Chlipala <adam@chlipala.net>
date	Thu, 23 Dec 2010 18:07:05 -0500
parents	02fc16faecf3
children	7dd8a6704265

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

Mercurial > urweb

annotate src/c/urweb.c @ 1361:7a436b6267ab