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

annotate src/c/urweb.c @ 1052:7e3226c97678

Fix handling of clearCookie/getCookie in same page gen

author	Adam Chlipala <adamc@hcoop.net>
date	Fri, 27 Nov 2009 09:12:46 -0500
parents	731e6aa6655a
children	118a5a08a881

rev	line source
adamc@741	1 #define _XOPEN_SOURCE 500
adamc@436	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@102	12
adamc@667	13 #include <pthread.h>
adamc@667	14
adamc@102	15 #include "types.h"
adamc@102	16
adamc@311	17 uw_unit uw_unit_v = {};
adamc@102	18
adamc@667	19
adamc@667	20 // Socket extras
adamc@667	21
adamc@863	22 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667	23 while (len > 0) {
adamc@856	24 ssize_t n = send(sock, buf, len, 0);
adamc@856	25
adamc@856	26 if (n < 0)
adamc@856	27 return n;
adamc@856	28
adamc@856	29 buf += n;
adamc@856	30 len -= n;
adamc@856	31 }
adamc@856	32
adamc@856	33 return 0;
adamc@856	34 }
adamc@856	35
adamc@856	36 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856	37 while (len > 0) {
adamc@856	38 ssize_t n = write(fd, buf, len);
adamc@667	39
adamc@667	40 if (n < 0)
adamc@667	41 return n;
adamc@667	42
adamc@667	43 buf += n;
adamc@667	44 len -= n;
adamc@667	45 }
adamc@667	46
adamc@667	47 return 0;
adamc@667	48 }
adamc@667	49
adamc@667	50
adamc@667	51 // Buffers
adamc@667	52
adamc@667	53 typedef struct {
adamc@667	54 char start, front, *back;
adamc@667	55 } buf;
adamc@667	56
adamc@667	57 static void buf_init(buf *b, size_t s) {
adamc@667	58 b->front = b->start = malloc(s);
adamc@667	59 b->back = b->front + s;
adamc@667	60 }
adamc@667	61
adamc@667	62 static void buf_free(buf *b) {
adamc@667	63 free(b->start);
adamc@667	64 }
adamc@667	65
adamc@667	66 static void buf_reset(buf *b) {
adamc@667	67 b->front = b->start;
adamc@667	68 }
adamc@667	69
adamc@667	70 static void buf_check(buf *b, size_t extra) {
adamc@667	71 if (b->back - b->front < extra) {
adamc@667	72 size_t desired = b->front - b->start + extra, next;
adamc@667	73 char *new_heap;
adamc@667	74
adamc@667	75 next = b->back - b->start;
adamc@667	76 if (next == 0)
adamc@667	77 next = 1;
adamc@667	78 for (; next < desired; next *= 2);
adamc@667	79
adamc@667	80 new_heap = realloc(b->start, next);
adamc@667	81 b->front = new_heap + (b->front - b->start);
adamc@667	82 b->back = new_heap + next;
adamc@667	83 b->start = new_heap;
adamc@667	84 }
adamc@667	85 }
adamc@667	86
adamc@667	87 static size_t buf_used(buf *b) {
adamc@667	88 return b->front - b->start;
adamc@667	89 }
adamc@667	90
adamc@667	91 static size_t buf_avail(buf *b) {
adamc@667	92 return b->back - b->start;
adamc@667	93 }
adamc@667	94
adamc@668	95 static void buf_append(buf b, const char s, size_t len) {
adamc@672	96 buf_check(b, len+1);
adamc@668	97 memcpy(b->front, s, len);
adamc@668	98 b->front += len;
adamc@672	99 *b->front = 0;
adamc@668	100 }
adamc@667	101
adamc@668	102
adamc@672	103 // Persistent state types
adamc@667	104
adamc@667	105 typedef enum { UNUSED, USED } usage;
adamc@667	106
adamc@667	107 typedef struct client {
adamc@682	108 unsigned id;
adamc@667	109 usage mode;
adamc@682	110 int pass;
adamc@682	111 struct client *next;
adamc@689	112 pthread_mutex_t lock, pull_lock;
adamc@682	113 buf msgs;
adamc@682	114 int sock;
adamc@863	115 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	116 int (*close)(int fd);
adamc@682	117 time_t last_contact;
adamc@682	118 unsigned n_channels;
adamc@685	119 unsigned refcount;
adamc@667	120 } client;
adamc@667	121
adamc@672	122
adamc@672	123 // Persistent client state
adamc@672	124
adamc@682	125 static client *clients, clients_free, *clients_used;
adamc@682	126 static unsigned n_clients;
adamc@667	127
adamc@667	128 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@667	129
adamc@682	130 static client *new_client() {
adamc@667	131 client *c;
adamc@667	132
adamc@667	133 pthread_mutex_lock(&clients_mutex);
adamc@667	134
adamc@667	135 if (clients_free) {
adamc@667	136 c = clients_free;
adamc@682	137 clients_free = clients_free->next;
adamc@667	138 }
adamc@667	139 else {
adamc@667	140 ++n_clients;
adamc@667	141 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	142 c = malloc(sizeof(client));
adamc@667	143 c->id = n_clients-1;
adamc@682	144 pthread_mutex_init(&c->lock, NULL);
adamc@689	145 pthread_mutex_init(&c->pull_lock, NULL);
adamc@682	146 buf_init(&c->msgs, 0);
adamc@667	147 clients[n_clients-1] = c;
adamc@667	148 }
adamc@667	149
adamc@682	150 pthread_mutex_lock(&c->lock);
adamc@667	151 c->mode = USED;
adamc@682	152 c->pass = rand();
adamc@682	153 c->sock = -1;
adamc@682	154 c->last_contact = time(NULL);
adamc@682	155 buf_reset(&c->msgs);
adamc@682	156 c->n_channels = 0;
adamc@685	157 c->refcount = 0;
adamc@682	158 pthread_mutex_unlock(&c->lock);
adamc@682	159
adamc@682	160 c->next = clients_used;
adamc@682	161 clients_used = c;
adamc@667	162
adamc@667	163 pthread_mutex_unlock(&clients_mutex);
adamc@667	164
adamc@667	165 return c;
adamc@667	166 }
adamc@667	167
adamc@685	168 static void use_client(client *c) {
adamc@685	169 pthread_mutex_lock(&c->lock);
adamc@685	170 ++c->refcount;
adamc@685	171 pthread_mutex_unlock(&c->lock);
adamc@689	172 pthread_mutex_lock(&c->pull_lock);
adamc@685	173 }
adamc@685	174
adamc@685	175 static void release_client(client *c) {
adamc@689	176 pthread_mutex_unlock(&c->pull_lock);
adamc@685	177 pthread_mutex_lock(&c->lock);
adamc@685	178 --c->refcount;
adamc@685	179 pthread_mutex_unlock(&c->lock);
adamc@689	180
adamc@685	181 }
adamc@685	182
adamc@856	183 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adamc@667	184
adamc@682	185 static client *find_client(unsigned id) {
adamc@667	186 client *c;
adamc@667	187
adamc@667	188 pthread_mutex_lock(&clients_mutex);
adamc@667	189
adamc@667	190 if (id >= n_clients) {
adamc@667	191 pthread_mutex_unlock(&clients_mutex);
adamc@668	192 return NULL;
adamc@667	193 }
adamc@667	194
adamc@667	195 c = clients[id];
adamc@667	196
adamc@668	197 pthread_mutex_unlock(&clients_mutex);
adamc@668	198 return c;
adamc@668	199 }
adamc@668	200
adamc@856	201 static char *on_success = "HTTP/1.1 200 OK\r\n";
adamc@856	202
adamc@856	203 void uw_set_on_success(char *s) {
adamc@856	204 on_success = s;
adamc@856	205 }
adamc@856	206
adamc@863	207 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	208 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	209 int (*close)(int fd),
adamc@864	210 void *logger_data, uw_logger log_error) {
adamc@682	211 client *c = find_client(id);
adamc@668	212
adamc@668	213 if (c == NULL) {
adamc@667	214 close(sock);
adamc@864	215 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	216 return;
adamc@667	217 }
adamc@667	218
adamc@682	219 pthread_mutex_lock(&c->lock);
adamc@671	220
adamc@682	221 if (c->mode != USED) {
adamc@682	222 pthread_mutex_unlock(&c->lock);
adamc@667	223 close(sock);
adamc@864	224 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	225 return;
adamc@667	226 }
adamc@667	227
adamc@682	228 if (pass != c->pass) {
adamc@682	229 pthread_mutex_unlock(&c->lock);
adamc@682	230 close(sock);
adamc@864	231 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	232 return;
adamc@667	233 }
adamc@667	234
adamc@682	235 if (c->sock != -1) {
adamc@863	236 c->close(c->sock);
adamc@682	237 c->sock = -1;
adamc@682	238 }
adamc@667	239
adamc@682	240 c->last_contact = time(NULL);
adamc@682	241
adamc@682	242 if (buf_used(&c->msgs) > 0) {
adamc@863	243 send(sock, on_success, strlen(on_success));
adamc@863	244 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863	245 send(sock, c->msgs.start, buf_used(&c->msgs));
adamc@682	246 buf_reset(&c->msgs);
adamc@667	247 close(sock);
adamc@667	248 }
adamc@863	249 else {
adamc@682	250 c->sock = sock;
adamc@863	251 c->send = send;
adamc@863	252 c->close = close;
adamc@863	253 }
adamc@667	254
adamc@682	255 pthread_mutex_unlock(&c->lock);
adamc@667	256 }
adamc@667	257
adamc@682	258 static void free_client(client *c) {
adamc@682	259 c->mode = UNUSED;
adamc@682	260 c->pass = -1;
adamc@667	261
adamc@682	262 c->next = clients_free;
adamc@682	263 clients_free = c;
adamc@667	264 }
adamc@667	265
adamc@682	266 static uw_Basis_channel new_channel(client *c) {
adamc@682	267 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	268 return ch;
adamc@668	269 }
adamc@668	270
adamc@685	271 static void client_send(client c, buf msg) {
adamc@685	272 pthread_mutex_lock(&c->lock);
adamc@671	273
adamc@682	274 if (c->sock != -1) {
adamc@863	275 c->send(c->sock, on_success, strlen(on_success));
adamc@863	276 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863	277 c->send(c->sock, msg->start, buf_used(msg));
adamc@863	278 c->close(c->sock);
adamc@682	279 c->sock = -1;
adamc@682	280 } else
adamc@682	281 buf_append(&c->msgs, msg->start, buf_used(msg));
adamc@671	282
adamc@685	283 pthread_mutex_unlock(&c->lock);
adamc@668	284 }
adamc@668	285
adamc@668	286
adamc@668	287 // Global entry points
adamc@668	288
adamc@866	289 extern void uw_client_init();
adamc@866	290
adamc@668	291 void uw_global_init() {
adamc@668	292 srand(time(NULL) ^ getpid());
adamc@668	293
adamc@668	294 clients = malloc(0);
adamc@866	295
adamc@866	296 uw_client_init();
adamc@668	297 }
adamc@668	298
adamc@668	299
adamc@667	300 // Single-request state
adamc@667	301
adamc@167	302 #define ERROR_BUF_LEN 1024
adamc@167	303
adamc@323	304 typedef struct regions {
adamc@323	305 struct regions *next;
adamc@323	306 } regions;
adamc@323	307
adamc@425	308 typedef struct {
adamc@425	309 void (func)(void);
adamc@425	310 void *arg;
adamc@425	311 } cleanup;
adamc@425	312
adamc@671	313 typedef struct {
adamc@682	314 unsigned client;
adamc@671	315 buf msgs;
adamc@682	316 } delta;
adamc@671	317
adamc@737	318 typedef enum {
adamc@759	319 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	320 } input_kind;
adamc@737	321
adamc@756	322 typedef struct input {
adamc@737	323 input_kind kind;
adamc@737	324 union {
adamc@737	325 char *normal;
adamc@739	326 uw_Basis_file file;
adamc@756	327 struct {
adamc@759	328 struct input fields, parent;
adamc@756	329 } subform;
adamc@759	330 struct {
adamc@759	331 struct input entries, parent;
adamc@759	332 } subforms;
adamc@759	333 struct {
adamc@759	334 struct input fields, next, *parent;
adamc@759	335 } entry;
adamc@737	336 } data;
adamc@737	337 } input;
adamc@737	338
adamc@771	339 typedef struct {
adamc@771	340 void *data;
adamc@771	341 uw_callback commit, rollback, free;
adamc@771	342 } transactional;
adamc@771	343
adamc@311	344 struct uw_context {
adamc@854	345 char (get_header)(void , const char );
adamc@854	346 void *get_header_data;
adamc@457	347
adamc@666	348 buf outHeaders, page, heap, script;
adamc@921	349 int returning_blob;
adamc@759	350 input inputs, subinputs, *cur_container;
adamc@756	351 size_t n_subinputs, used_subinputs;
adamc@167	352
adamc@565	353 int source_count;
adamc@562	354
adamc@272	355 void *db;
adamc@272	356
adamc@167	357 jmp_buf jmp_buf;
adamc@167	358
adamc@323	359 regions *regions;
adamc@323	360
adamc@425	361 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	362
adamc@667	363 const char script_header, url_prefix;
adamc@643	364
adamc@736	365 int needs_push, needs_sig;
adamc@693	366
adamc@682	367 size_t n_deltas, used_deltas;
adamc@682	368 delta *deltas;
adamc@671	369
adamc@673	370 int timeout;
adamc@673	371
adamc@682	372 client *client;
adamc@682	373
adamc@771	374 transactional *transactionals;
adamc@771	375 size_t n_transactionals, used_transactionals;
adamc@771	376
adamc@167	377 char error_message[ERROR_BUF_LEN];
adamc@117	378 };
adamc@117	379
adamc@683	380 extern int uw_inputs_len, uw_timeout;
adamc@144	381
adamc@687	382 uw_context uw_init() {
adamc@311	383 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	384
adamc@854	385 ctx->get_header = NULL;
adamc@854	386 ctx->get_header_data = NULL;
adamc@457	387
adamc@687	388 buf_init(&ctx->outHeaders, 0);
adamc@687	389 buf_init(&ctx->page, 0);
adamc@921	390 ctx->returning_blob = 0;
adamc@687	391 buf_init(&ctx->heap, 0);
adamc@698	392 buf_init(&ctx->script, 1);
adamc@667	393 ctx->script.start[0] = 0;
adamc@136	394
adamc@737	395 ctx->inputs = calloc(uw_inputs_len, sizeof(input));
adamc@759	396 ctx->cur_container = NULL;
adamc@756	397 ctx->subinputs = malloc(0);
adamc@756	398 ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	399
adamc@272	400 ctx->db = NULL;
adamc@272	401
adamc@323	402 ctx->regions = NULL;
adamc@323	403
adamc@425	404 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	405
adamc@643	406 ctx->script_header = "";
adamc@667	407 ctx->url_prefix = "/";
adamc@693	408 ctx->needs_push = 0;
adamc@736	409 ctx->needs_sig = 0;
adamc@643	410
adamc@167	411 ctx->error_message[0] = 0;
adamc@167	412
adamc@565	413 ctx->source_count = 0;
adamc@562	414
adamc@682	415 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	416 ctx->deltas = malloc(0);
adamc@671	417
adamc@673	418 ctx->timeout = uw_timeout;
adamc@673	419
adamc@700	420 ctx->client = NULL;
adamc@700	421
adamc@700	422 ctx->error_message[0] = 0;
adamc@700	423
adamc@771	424 ctx->transactionals = malloc(0);
adamc@771	425 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	426
adamc@117	427 return ctx;
adamc@106	428 }
adamc@106	429
adamc@311	430 void uw_set_db(uw_context ctx, void *db) {
adamc@272	431 ctx->db = db;
adamc@272	432 }
adamc@272	433
adamc@311	434 void *uw_get_db(uw_context ctx) {
adamc@272	435 return ctx->db;
adamc@272	436 }
adamc@272	437
adamc@311	438 void uw_free(uw_context ctx) {
adamc@671	439 size_t i;
adamc@671	440
adamc@666	441 buf_free(&ctx->outHeaders);
adamc@666	442 buf_free(&ctx->script);
adamc@666	443 buf_free(&ctx->page);
adamc@666	444 buf_free(&ctx->heap);
adamc@144	445 free(ctx->inputs);
adamc@756	446 free(ctx->subinputs);
adamc@425	447 free(ctx->cleanup);
adamc@771	448 free(ctx->transactionals);
adamc@671	449
adamc@682	450 for (i = 0; i < ctx->n_deltas; ++i)
adamc@671	451 buf_free(&ctx->deltas[i].msgs);
adamc@671	452
adamc@136	453 free(ctx);
adamc@136	454 }
adamc@136	455
adamc@562	456 void uw_reset_keep_error_message(uw_context ctx) {
adamc@756	457 size_t i;
adamc@756	458
adamc@666	459 buf_reset(&ctx->outHeaders);
adamc@666	460 buf_reset(&ctx->script);
adamc@667	461 ctx->script.start[0] = 0;
adamc@666	462 buf_reset(&ctx->page);
adamc@921	463 ctx->returning_blob = 0;
adamc@666	464 buf_reset(&ctx->heap);
adamc@323	465 ctx->regions = NULL;
adamc@425	466 ctx->cleanup_front = ctx->cleanup;
adamc@565	467 ctx->source_count = 0;
adamc@682	468 ctx->used_deltas = 0;
adamc@682	469 ctx->client = NULL;
adamc@759	470 ctx->cur_container = NULL;
adamc@771	471 ctx->used_transactionals = 0;
adamc@167	472 }
adamc@167	473
adamc@562	474 void uw_reset_keep_request(uw_context ctx) {
adamc@562	475 uw_reset_keep_error_message(ctx);
adamc@562	476 ctx->error_message[0] = 0;
adamc@167	477 }
adamc@167	478
adamc@311	479 void uw_reset(uw_context ctx) {
adamc@311	480 uw_reset_keep_request(ctx);
adamc@737	481 memset(ctx->inputs, 0, uw_inputs_len * sizeof(input));
adamc@756	482 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adamc@756	483 ctx->used_subinputs = 0;
adamc@144	484 }
adamc@144	485
adamc@311	486 void uw_db_init(uw_context);
adamc@311	487 void uw_handle(uw_context, char *);
adamc@167	488
adamc@311	489 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	490 int r = setjmp(ctx->jmp_buf);
adamc@272	491
adamc@272	492 if (r == 0)
adamc@311	493 uw_db_init(ctx);
adamc@272	494
adamc@272	495 return r;
adamc@272	496 }
adamc@272	497
adamc@854	498 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	499 ctx->get_header = get_header;
adamc@854	500 ctx->get_header_data = get_header_data;
adamc@742	501 }
adamc@742	502
adamc@671	503 int uw_db_begin(uw_context);
adamc@167	504
adamc@801	505 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	506 va_list ap;
adamc@801	507 va_start(ap, fmt);
adamc@801	508
adamc@801	509 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	510 }
adamc@801	511
adamc@311	512 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	513 cleanup *cl;
adamc@425	514
adamc@167	515 va_list ap;
adamc@167	516 va_start(ap, fmt);
adamc@167	517
adamc@167	518 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	519
adamc@425	520 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	521 cl->func(cl->arg);
adamc@425	522
adamc@425	523 ctx->cleanup_front = ctx->cleanup;
adamc@425	524
adamc@190	525 longjmp(ctx->jmp_buf, fk);
adamc@167	526 }
adamc@167	527
adamc@425	528 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	529 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	530 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	531 if (len == 0)
adamc@425	532 newLen = 1;
adamc@425	533 else
adamc@428	534 newLen = len * 2;
adamc@470	535 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	536 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	537 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	538 }
adamc@425	539
adamc@425	540 ctx->cleanup_front->func = func;
adamc@425	541 ctx->cleanup_front->arg = arg;
adamc@425	542 ++ctx->cleanup_front;
adamc@425	543 }
adamc@425	544
adamc@682	545 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adamc@854	546 return ctx->get_header(ctx->get_header_data, h);
adamc@682	547 }
adamc@682	548
adamc@682	549 void uw_login(uw_context ctx) {
adamc@693	550 if (ctx->needs_push) {
adamc@682	551 char id_s, pass_s;
adamc@682	552
adamc@682	553 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682	554 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682	555 unsigned id = atoi(id_s);
adamc@682	556 int pass = atoi(pass_s);
adamc@682	557 client *c = find_client(id);
adamc@682	558
adamc@682	559 if (c == NULL)
adamc@682	560 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", id_s, pass_s);
adamc@682	561 else {
adamc@685	562 use_client(c);
adamc@682	563 ctx->client = c;
adamc@682	564
adamc@682	565 if (c->mode != USED)
adamc@682	566 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682	567 if (c->pass != pass)
adamc@682	568 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682	569 }
adamc@682	570 } else {
adamc@682	571 client *c = new_client();
adamc@685	572 use_client(c);
adamc@682	573 ctx->client = c;
adamc@864	574 }
adamc@682	575 }
adamc@682	576 }
adamc@682	577
adamc@671	578 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	579 int r = setjmp(ctx->jmp_buf);
adamc@671	580
adamc@671	581 if (r == 0) {
adamc@671	582 if (uw_db_begin(ctx))
adamc@671	583 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adamc@682	584
adamc@671	585 uw_handle(ctx, path);
adamc@671	586 }
adamc@671	587
adamc@671	588 return r;
adamc@671	589 }
adamc@671	590
adamc@772	591 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	592 if (ctx->client == NULL)
adamc@682	593 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	594
adamc@682	595 return ctx->client->id;
adamc@682	596 }
adamc@682	597
adamc@425	598 void uw_pop_cleanup(uw_context ctx) {
adamc@425	599 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	600 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	601
adamc@425	602 --ctx->cleanup_front;
adamc@425	603 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	604 }
adamc@425	605
adamc@311	606 char *uw_error_message(uw_context ctx) {
adamc@167	607 return ctx->error_message;
adamc@167	608 }
adamc@167	609
adamc@737	610 extern int uw_input_num(const char*);
adamc@144	611
adamc@759	612 static input *INP(uw_context ctx) {
adamc@759	613 if (ctx->cur_container == NULL)
adamc@759	614 return ctx->inputs;
adamc@759	615 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	616 return ctx->cur_container->data.subform.fields;
adamc@759	617 else if (ctx->cur_container->kind == ENTRY)
adamc@759	618 return ctx->cur_container->data.entry.fields;
adamc@759	619 else
adamc@760	620 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	621 }
adamc@759	622
adamc@760	623 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	624 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	625 *ptr += new_start - old_start;
adamc@760	626 }
adamc@760	627
adamc@760	628 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	629 switch (x->kind) {
adamc@759	630 case SUBFORM:
adamc@760	631 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	632 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	633 break;
adamc@759	634 case SUBFORMS:
adamc@760	635 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	636 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	637 break;
adamc@759	638 case ENTRY:
adamc@760	639 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	640 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	641 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@759	642 }
adamc@759	643 }
adamc@759	644
adamc@759	645 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	646 size_t i;
adamc@759	647 input *r;
adamc@759	648
adamc@759	649 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@759	650 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	651 size_t offset = new_subinputs - ctx->subinputs;
adamc@759	652
adamc@760	653 if (ctx->subinputs != new_subinputs) {
adamc@760	654 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	655 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	656 for (i = 0; i < uw_inputs_len; ++i)
adamc@760	657 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	658
adamc@760	659 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	660
adamc@760	661 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	662 ctx->subinputs = new_subinputs;
adamc@760	663 }
adamc@759	664 }
adamc@759	665
adamc@759	666 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	667
adamc@759	668 for (i = 0; i < len; ++i)
adamc@759	669 ctx->subinputs[ctx->used_subinputs++].kind = UNUSED;
adamc@759	670
adamc@759	671 return r;
adamc@759	672 }
adamc@756	673
adamc@801	674 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	675 //printf("Input name %s\n", name);
adamc@1038	676
adamc@756	677 if (!strcasecmp(name, ".b")) {
adamc@756	678 int n = uw_input_num(value);
adamc@756	679 input *inps;
adamc@756	680
adamc@801	681 if (n < 0) {
adamc@801	682 uw_set_error(ctx, "Bad subform name %s", value);
adamc@801	683 return -1;
adamc@801	684 }
adamc@801	685
adamc@801	686 if (n >= uw_inputs_len) {
adamc@801	687 uw_set_error(ctx, "For subform name %s, index %d is out of range", value, n);
adamc@801	688 return -1;
adamc@801	689 }
adamc@756	690
adamc@759	691 inps = check_input_space(ctx, uw_inputs_len);
adamc@759	692
adamc@759	693 INP(ctx)[n].kind = SUBFORM;
adamc@759	694 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	695 INP(ctx)[n].data.subform.fields = inps;
adamc@759	696 ctx->cur_container = &INP(ctx)[n];
adamc@756	697 } else if (!strcasecmp(name, ".e")) {
adamc@756	698 input *tmp;
adamc@756	699
adamc@801	700 if (ctx->cur_container == NULL) {
adamc@801	701 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	702 return -1;
adamc@801	703 }
adamc@756	704
adamc@759	705 tmp = ctx->cur_container;
adamc@759	706 switch (tmp->kind) {
adamc@759	707 case SUBFORM:
adamc@759	708 ctx->cur_container = tmp->data.subform.parent;
adamc@759	709 tmp->data.subform.parent = NULL;
adamc@759	710 break;
adamc@759	711 case SUBFORMS:
adamc@759	712 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	713 tmp->data.subforms.parent = NULL;
adamc@759	714 break;
adamc@759	715 case ENTRY:
adamc@759	716 ctx->cur_container = tmp->data.entry.parent;
adamc@759	717 break;
adamc@759	718 default:
adamc@801	719 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	720 return -1;
adamc@759	721 }
adamc@759	722 } else if (!strcasecmp(name, ".s")) {
adamc@759	723 int n = uw_input_num(value);
adamc@759	724
adamc@801	725 if (n < 0) {
adamc@801	726 uw_set_error(ctx, "Bad subforms name %s", value);
adamc@801	727 return -1;
adamc@801	728 }
adamc@801	729
adamc@801	730 if (n >= uw_inputs_len) {
adamc@801	731 uw_set_error(ctx, "For subforms name %s, index %d is out of range", value, n);
adamc@801	732 return -1;
adamc@801	733 }
adamc@759	734
adamc@759	735 INP(ctx)[n].kind = SUBFORMS;
adamc@759	736 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	737 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	738 ctx->cur_container = &INP(ctx)[n];
adamc@759	739 } else if (!strcasecmp(name, ".i")) {
adamc@759	740 input *inps;
adamc@759	741
adamc@801	742 if (!ctx->cur_container) {
adamc@801	743 uw_set_error(ctx, "New entry without container");
adamc@801	744 return -1;
adamc@801	745 }
adamc@801	746
adamc@801	747 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	748 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	749 return -1;
adamc@801	750 }
adamc@759	751
adamc@759	752 inps = check_input_space(ctx, uw_inputs_len + 1);
adamc@759	753
adamc@759	754 inps->kind = ENTRY;
adamc@759	755 inps->data.entry.parent = ctx->cur_container;
adamc@759	756 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	757 ctx->cur_container->data.subforms.entries = inps;
adamc@759	758
adamc@759	759 inps->data.entry.fields = inps+1;
adamc@759	760 ctx->cur_container = inps;
adamc@756	761 } else {
adamc@756	762 int n = uw_input_num(name);
adamc@756	763
adamc@801	764 if (n < 0) {
adamc@1038	765 if (!strcmp(name, "null"))
adamc@1038	766 return 0;
adamc@801	767 uw_set_error(ctx, "Bad input name %s", name);
adamc@801	768 return -1;
adamc@801	769 }
adamc@801	770
adamc@801	771 if (n >= uw_inputs_len) {
adamc@801	772 uw_set_error(ctx, "For input name %s, index %d is out of range", name, n);
adamc@801	773 return -1;
adamc@801	774 }
adamc@756	775
adamc@756	776 INP(ctx)[n].kind = NORMAL;
adamc@756	777 INP(ctx)[n].data.normal = value;
adamc@756	778 }
adamc@801	779
adamc@801	780 return 0;
adamc@144	781 }
adamc@144	782
adamc@311	783 char *uw_get_input(uw_context ctx, int n) {
adamc@169	784 if (n < 0)
adamc@311	785 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311	786 if (n >= uw_inputs_len)
adamc@311	787 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	788
adamc@756	789 switch (INP(ctx)[n].kind) {
adamc@737	790 case UNSET:
adamc@737	791 return NULL;
adamc@739	792 case FIL:
adamc@739	793 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	794 case SUBFORM:
adamc@756	795 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	796 case SUBFORMS:
adamc@759	797 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	798 case ENTRY:
adamc@759	799 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	800 case NORMAL:
adamc@756	801 return INP(ctx)[n].data.normal;
adamc@737	802 default:
adamc@737	803 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	804 }
adamc@138	805 }
adamc@138	806
adamc@311	807 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	808 if (n < 0)
adamc@311	809 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311	810 if (n >= uw_inputs_len)
adamc@311	811 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	812
adamc@756	813 switch (INP(ctx)[n].kind) {
adamc@737	814 case UNSET:
adamc@737	815 return "";
adamc@739	816 case FIL:
adamc@739	817 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	818 case SUBFORM:
adamc@756	819 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	820 case SUBFORMS:
adamc@759	821 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	822 case ENTRY:
adamc@759	823 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	824 case NORMAL:
adamc@756	825 return INP(ctx)[n].data.normal;
adamc@737	826 default:
adamc@737	827 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	828 }
adamc@737	829 }
adamc@737	830
adamc@801	831 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@737	832 int n = uw_input_num(name);
adamc@737	833
adamc@801	834 if (n < 0) {
adamc@801	835 uw_set_error(ctx, "Bad file input name %s", name);
adamc@801	836 return -1;
adamc@801	837 }
adamc@801	838
adamc@801	839 if (n >= uw_inputs_len) {
adamc@801	840 uw_set_error(ctx, "For file input name %s, index %d is out of range", name, n);
adamc@801	841 return -1;
adamc@801	842 }
adamc@737	843
adamc@739	844 ctx->inputs[n].kind = FIL;
adamc@739	845 ctx->inputs[n].data.file = f;
adamc@801	846
adamc@801	847 return 0;
adamc@737	848 }
adamc@737	849
adamc@739	850 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	851
adamc@760	852
adamc@760	853 static void parents(input *inp) {
adamc@760	854 printf("Stack: %p\n", inp);
adamc@760	855 while (inp) {
adamc@760	856 switch (inp->kind) {
adamc@760	857 case NORMAL:
adamc@760	858 printf("Normal(%p)\n", inp);
adamc@760	859 break;
adamc@760	860 case FIL:
adamc@760	861 printf("File(%p)\n", inp);
adamc@760	862 break;
adamc@760	863 case SUBFORM:
adamc@760	864 printf("Subform; fields = %p\n", inp->data.subform.fields);
adamc@760	865 inp = inp->data.subform.parent;
adamc@760	866 break;
adamc@760	867 case SUBFORMS:
adamc@760	868 printf("Subforms; entries = %p\n", inp->data.subforms.entries);
adamc@760	869 inp = inp->data.subforms.parent;
adamc@760	870 break;
adamc@760	871 case ENTRY:
adamc@760	872 printf("Entry; fields = %p; next = %p\n", inp->data.entry.fields, inp->data.entry.next);
adamc@760	873 inp = inp->data.entry.parent;
adamc@760	874 break;
adamc@760	875 default:
adamc@760	876 inp = NULL;
adamc@760	877 }
adamc@760	878 }
adamc@760	879 }
adamc@760	880
adamc@739	881 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	882 if (n < 0)
adamc@737	883 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@737	884 if (n >= uw_inputs_len)
adamc@737	885 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	886
adamc@756	887 switch (INP(ctx)[n].kind) {
adamc@737	888 case UNSET:
adamc@737	889 {
adamc@739	890 char *data = uw_malloc(ctx, 0);
adamc@740	891 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	892 return f;
adamc@737	893 }
adamc@739	894 case FIL:
adamc@756	895 return INP(ctx)[n].data.file;
adamc@737	896 case NORMAL:
adamc@737	897 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	898 case SUBFORM:
adamc@756	899 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	900 case SUBFORMS:
adamc@759	901 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	902 case ENTRY:
adamc@759	903 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	904 default:
adamc@737	905 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	906 }
adamc@190	907 }
adamc@190	908
adamc@756	909 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	910 if (n < 0)
adamc@756	911 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@756	912 if (n >= uw_inputs_len)
adamc@756	913 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	914
adamc@756	915 switch (INP(ctx)[n].kind) {
adamc@756	916 case UNSET:
adamc@756	917 uw_error(ctx, FATAL, "Missing subform");
adamc@756	918 case FIL:
adamc@756	919 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	920 case NORMAL:
adamc@756	921 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	922 case SUBFORMS:
adamc@759	923 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	924 case ENTRY:
adamc@759	925 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	926 case SUBFORM:
adamc@759	927 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	928 ctx->cur_container = &INP(ctx)[n];
adamc@756	929 return;
adamc@756	930 default:
adamc@756	931 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	932 }
adamc@756	933 }
adamc@756	934
adamc@756	935 void uw_leave_subform(uw_context ctx) {
adamc@756	936 input *tmp;
adamc@756	937
adamc@759	938 if (ctx->cur_container == NULL)
adamc@756	939 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	940
adamc@759	941 tmp = ctx->cur_container;
adamc@759	942 ctx->cur_container = tmp->data.subform.parent;
adamc@759	943 tmp->data.subform.parent = NULL;
adamc@759	944 }
adamc@759	945
adamc@759	946 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	947 input *inps;
adamc@759	948
adamc@759	949 if (n < 0)
adamc@759	950 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@759	951 if (n >= uw_inputs_len)
adamc@759	952 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	953
adamc@759	954 switch (INP(ctx)[n].kind) {
adamc@759	955 case UNSET:
adamc@759	956 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	957 case FIL:
adamc@759	958 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	959 case NORMAL:
adamc@759	960 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	961 case SUBFORM:
adamc@759	962 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	963 case ENTRY:
adamc@759	964 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	965 case SUBFORMS:
adamc@759	966 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	967 if (inps) {
adamc@759	968 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	969 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	970 return 1;
adamc@759	971 } else
adamc@759	972 return 0;
adamc@759	973 default:
adamc@759	974 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	975 }
adamc@759	976 }
adamc@759	977
adamc@759	978 int uw_next_entry(uw_context ctx) {
adamc@759	979 if (ctx->cur_container == NULL)
adamc@759	980 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	981
adamc@759	982 switch (ctx->cur_container->kind) {
adamc@759	983 case UNSET:
adamc@759	984 uw_error(ctx, FATAL, "Missing entry");
adamc@759	985 case FIL:
adamc@759	986 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	987 case NORMAL:
adamc@759	988 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	989 case SUBFORM:
adamc@759	990 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	991 case SUBFORMS:
adamc@759	992 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	993 case ENTRY:
adamc@759	994 if (ctx->cur_container->data.entry.next) {
adamc@759	995 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	996 return 1;
adamc@759	997 } else {
adamc@759	998 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	999 return 0;
adamc@759	1000 }
adamc@759	1001 default:
adamc@759	1002 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1003 }
adamc@756	1004 }
adamc@756	1005
adamc@643	1006 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1007 ctx->script_header = s;
adamc@643	1008 }
adamc@643	1009
adamc@667	1010 void uw_set_url_prefix(uw_context ctx, const char *s) {
adamc@667	1011 ctx->url_prefix = s;
adamc@667	1012 }
adamc@667	1013
adamc@693	1014 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1015 ctx->needs_push = n;
adamc@693	1016 }
adamc@693	1017
adamc@736	1018 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1019 ctx->needs_sig = n;
adamc@736	1020 }
adamc@736	1021
adamc@667	1022
adamc@667	1023 static void buf_check_ctx(uw_context ctx, buf b, size_t extra, const char desc) {
adamc@666	1024 if (b->back - b->front < extra) {
adamc@666	1025 size_t desired = b->front - b->start + extra, next;
adamc@136	1026 char *new_heap;
adamc@136	1027
adamc@666	1028 next = b->back - b->start;
adamc@317	1029 if (next == 0)
adamc@317	1030 next = 1;
adamc@317	1031 for (; next < desired; next *= 2);
adamc@136	1032
adamc@666	1033 new_heap = realloc(b->start, next);
adamc@666	1034 b->front = new_heap + (b->front - b->start);
adamc@666	1035 b->back = new_heap + next;
adamc@136	1036
adamc@667	1037 if (new_heap != b->start) {
adamc@666	1038 b->start = new_heap;
adamc@666	1039 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously", desc);
adamc@136	1040 }
adamc@136	1041
adamc@666	1042 b->start = new_heap;
adamc@136	1043 }
adamc@136	1044 }
adamc@136	1045
adamc@832	1046 void uw_check_heap(uw_context ctx, size_t extra) {
adamc@667	1047 buf_check_ctx(ctx, &ctx->heap, extra, "heap chunk");
adamc@666	1048 }
adamc@666	1049
adamc@832	1050 char *uw_heap_front(uw_context ctx) {
adamc@832	1051 return ctx->heap.front;
adamc@832	1052 }
adamc@832	1053
adamc@832	1054 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1055 ctx->heap.front = fr;
adamc@832	1056 }
adamc@832	1057
adamc@311	1058 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136	1059 void *result;
adamc@136	1060
adamc@311	1061 uw_check_heap(ctx, len);
adamc@136	1062
adamc@666	1063 result = ctx->heap.front;
adamc@666	1064 ctx->heap.front += len;
adamc@136	1065 return result;
adamc@117	1066 }
adamc@117	1067
adamc@323	1068 void uw_begin_region(uw_context ctx) {
adamc@666	1069 regions r = (regions ) ctx->heap.front;
adamc@323	1070
adamc@323	1071 uw_check_heap(ctx, sizeof(regions));
adamc@323	1072
adamc@666	1073 ctx->heap.front += sizeof(regions);
adamc@323	1074
adamc@323	1075 r->next = ctx->regions;
adamc@323	1076 ctx->regions = r;
adamc@323	1077 }
adamc@323	1078
adamc@323	1079 void uw_end_region(uw_context ctx) {
adamc@323	1080 regions *r = ctx->regions;
adamc@323	1081
adamc@323	1082 if (r == NULL)
adamc@323	1083 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1084
adamc@666	1085 ctx->heap.front = (char *) r;
adamc@323	1086 ctx->regions = r->next;
adamc@323	1087 }
adamc@323	1088
adamc@324	1089 void uw_memstats(uw_context ctx) {
adamc@666	1090 printf("Headers: %d/%d\n", buf_used(&ctx->outHeaders), buf_avail(&ctx->outHeaders));
adamc@666	1091 printf("Script: %d/%d\n", buf_used(&ctx->script), buf_avail(&ctx->script));
adamc@666	1092 printf("Page: %d/%d\n", buf_used(&ctx->page), buf_avail(&ctx->page));
adamc@666	1093 printf("Heap: %d/%d\n", buf_used(&ctx->heap), buf_avail(&ctx->heap));
adamc@324	1094 }
adamc@324	1095
adamc@311	1096 int uw_send(uw_context ctx, int sock) {
adamc@666	1097 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462	1098
adamc@462	1099 if (n < 0)
adamc@462	1100 return n;
adamc@462	1101
adamc@462	1102 n = uw_really_send(sock, "\r\n", 2);
adamc@462	1103
adamc@462	1104 if (n < 0)
adamc@462	1105 return n;
adamc@462	1106
adamc@666	1107 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462	1108 }
adamc@462	1109
adamc@856	1110 int uw_print(uw_context ctx, int fd) {
adamc@856	1111 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1112
adamc@856	1113 if (n < 0)
adamc@856	1114 return n;
adamc@856	1115
adamc@856	1116 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1117
adamc@856	1118 if (n < 0)
adamc@856	1119 return n;
adamc@856	1120
adamc@856	1121 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1122 }
adamc@856	1123
adamc@860	1124 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1125 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1126
adamc@860	1127 if (n < 0)
adamc@860	1128 return n;
adamc@860	1129
adamc@860	1130 n = output(data, "\r\n", 2);
adamc@860	1131
adamc@860	1132 if (n < 0)
adamc@860	1133 return n;
adamc@860	1134
adamc@860	1135 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1136 }
adamc@860	1137
adamc@462	1138 static void uw_check_headers(uw_context ctx, size_t extra) {
adamc@667	1139 buf_check(&ctx->outHeaders, extra);
adamc@462	1140 }
adamc@462	1141
adamc@462	1142 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1143 int len = strlen(s);
adamc@462	1144
adamc@462	1145 uw_check_headers(ctx, len + 1);
adamc@666	1146 strcpy(ctx->outHeaders.front, s);
adamc@666	1147 ctx->outHeaders.front += len;
adamc@562	1148 }
adamc@562	1149
adamc@562	1150 static void uw_check_script(uw_context ctx, size_t extra) {
adamc@667	1151 buf_check(&ctx->script, extra);
adamc@562	1152 }
adamc@562	1153
adamc@562	1154 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1155 int len = strlen(s);
adamc@562	1156
adamc@562	1157 uw_check_script(ctx, len + 1);
adamc@666	1158 strcpy(ctx->script.front, s);
adamc@666	1159 ctx->script.front += len;
adamc@562	1160 }
adamc@562	1161
adamc@645	1162 const char *uw_Basis_get_script(uw_context ctx, uw_unit u) {
adamc@916	1163 return "<sc>";
adamc@565	1164 }
adamc@565	1165
adamc@695	1166 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1167 if (s[0] == 0)
adamc@695	1168 return "";
adamc@695	1169 else {
adamc@695	1170 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1171 sprintf(r, " onload='%s'", s);
adamc@695	1172 return r;
adamc@695	1173 }
adamc@695	1174 }
adamc@695	1175
adamc@1042	1176 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1177 if (ctx->script_header[0] == 0)
adamc@1042	1178 return "";
adamc@1042	1179 else {
adamc@1042	1180 char *r = uw_malloc(ctx, 22 + strlen(s));
adamc@1042	1181 sprintf(r, " onunload='unload();%s'", s);
adamc@1042	1182 return r;
adamc@1042	1183 }
adamc@1042	1184 }
adamc@1042	1185
adamc@736	1186 extern uw_Basis_string uw_cookie_sig(uw_context);
adamc@736	1187
adamc@694	1188 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1189 if (ctx->client == NULL) {
adamc@736	1190 if (ctx->needs_sig) {
adamc@736	1191 char *sig = uw_cookie_sig(ctx);
adamc@736	1192 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1193 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1194 return r;
adamc@736	1195 }
adamc@736	1196 else
adamc@736	1197 return "";
adamc@736	1198 } else {
adamc@736	1199 char *sig = ctx->needs_sig ? uw_cookie_sig(ctx) : "";
adamc@736	1200 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->url_prefix)
adamc@736	1201 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adamc@736	1202 sprintf(r, "client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adamc@682	1203 ctx->client->id,
adamc@682	1204 ctx->client->pass,
adamc@679	1205 ctx->url_prefix,
adamc@736	1206 ctx->timeout,
adamc@736	1207 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1208 sig,
adamc@736	1209 ctx->needs_sig ? "\";" : "");
adamc@679	1210 return r;
adamc@668	1211 }
adamc@667	1212 }
adamc@667	1213
adamc@574	1214 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1215 char r, s2;
adamc@574	1216
adamc@574	1217 uw_check_heap(ctx, strlen(s) * 4 + 2);
adamc@574	1218
adamc@666	1219 r = s2 = ctx->heap.front;
adamc@574	1220 *s2++ = '"';
adamc@574	1221
adamc@574	1222 for (; *s; s++) {
adamc@574	1223 char c = *s;
adamc@574	1224
adamc@574	1225 switch (c) {
adamc@574	1226 case '"':
adamc@574	1227 strcpy(s2, "\\\"");
adamc@574	1228 s2 += 2;
adamc@574	1229 break;
adamc@1027	1230 case '\'':
adamc@1027	1231 strcpy(s2, "\\047");
adamc@1027	1232 s2 += 4;
adamc@1027	1233 break;
adamc@574	1234 case '\\':
adamc@574	1235 strcpy(s2, "\\\\");
adamc@574	1236 s2 += 2;
adamc@574	1237 break;
adamc@574	1238 default:
adamc@574	1239 if (isprint(c))
adamc@574	1240 *s2++ = c;
adamc@574	1241 else {
adamc@574	1242 sprintf(s2, "\\%3o", c);
adamc@574	1243 s2 += 4;
adamc@574	1244 }
adamc@574	1245 }
adamc@574	1246 }
adamc@574	1247
adamc@574	1248 strcpy(s2, "\"");
adamc@910	1249 ctx->heap.front = s2 + 2;
adamc@574	1250 return r;
adamc@574	1251 }
adamc@574	1252
adamc@1025	1253 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1025	1254 char r, s2;
adamc@1025	1255
adamc@1025	1256 uw_check_heap(ctx, 6);
adamc@1025	1257
adamc@1025	1258 r = s2 = ctx->heap.front;
adamc@1025	1259 *s2++ = '"';
adamc@1025	1260
adamc@1025	1261 switch (c) {
adamc@1025	1262 case '"':
adamc@1025	1263 strcpy(s2, "\\\"");
adamc@1025	1264 s2 += 2;
adamc@1025	1265 break;
adamc@1027	1266 case '\'':
adamc@1027	1267 strcpy(s2, "\\047");
adamc@1027	1268 s2 += 4;
adamc@1027	1269 break;
adamc@1025	1270 case '\\':
adamc@1025	1271 strcpy(s2, "\\\\");
adamc@1025	1272 s2 += 2;
adamc@1025	1273 break;
adamc@1025	1274 default:
adamc@1025	1275 if (isprint(c))
adamc@1025	1276 *s2++ = c;
adamc@1025	1277 else {
adamc@1025	1278 sprintf(s2, "\\%3o", c);
adamc@1025	1279 s2 += 4;
adamc@1025	1280 }
adamc@1025	1281 }
adamc@1025	1282
adamc@1025	1283 strcpy(s2, "\"");
adamc@1025	1284 ctx->heap.front = s2 + 2;
adamc@1025	1285 return r;
adamc@1025	1286 }
adamc@1025	1287
adamc@574	1288 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1289 char r, s2;
adamc@574	1290
adamc@574	1291 uw_check_script(ctx, strlen(s) * 4 + 2);
adamc@574	1292
adamc@666	1293 r = s2 = ctx->script.front;
adamc@574	1294 *s2++ = '"';
adamc@574	1295
adamc@574	1296 for (; *s; s++) {
adamc@574	1297 char c = *s;
adamc@574	1298
adamc@574	1299 switch (c) {
adamc@577	1300 case '\'':
adamc@1027	1301 strcpy(s2, "\\");
adamc@574	1302 s2 += 2;
adamc@574	1303 break;
adamc@574	1304 case '\\':
adamc@574	1305 strcpy(s2, "\\\\");
adamc@574	1306 s2 += 2;
adamc@574	1307 break;
adamc@574	1308 default:
adamc@574	1309 if (isprint(c))
adamc@574	1310 *s2++ = c;
adamc@574	1311 else {
adamc@574	1312 sprintf(s2, "\\%3o", c);
adamc@574	1313 s2 += 4;
adamc@574	1314 }
adamc@574	1315 }
adamc@574	1316 }
adamc@574	1317
adamc@574	1318 strcpy(s2, "\"");
adamc@666	1319 ctx->script.front = s2 + 1;
adamc@574	1320 return r;
adamc@574	1321 }
adamc@574	1322
adamc@682	1323 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1324 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1325 return "null";
adamc@682	1326 else {
adamc@682	1327 int len;
adamc@682	1328 char *r;
adamc@682	1329
adamc@682	1330 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1331 r = ctx->heap.front;
adamc@682	1332 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1333 ctx->heap.front += len+1;
adamc@682	1334 return r;
adamc@682	1335 }
adamc@682	1336 }
adamc@682	1337
adamc@577	1338 uw_Basis_int uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1339 int len;
adamc@577	1340 size_t s_len = strlen(s);
adamc@562	1341
adamc@970	1342 uw_check_script(ctx, 18 + INTS_MAX + s_len);
adamc@970	1343 sprintf(ctx->script.front, "var s%d=sc(exec(%n", ctx->source_count, &len);
adamc@666	1344 ctx->script.front += len;
adamc@666	1345 strcpy(ctx->script.front, s);
adamc@666	1346 ctx->script.front += s_len;
adamc@970	1347 strcpy(ctx->script.front, "));");
adamc@972	1348 ctx->script.front += 3;
adamc@562	1349
adamc@565	1350 return ctx->source_count++;
adamc@117	1351 }
adamc@117	1352
adamc@577	1353 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_int n, uw_Basis_string s) {
adamc@577	1354 int len;
adamc@577	1355 size_t s_len = strlen(s);
adamc@577	1356
adamc@970	1357 uw_check_script(ctx, 12 + INTS_MAX + s_len);
adamc@970	1358 sprintf(ctx->script.front, "sv(s%d,exec(%n", (int)n, &len);
adamc@666	1359 ctx->script.front += len;
adamc@666	1360 strcpy(ctx->script.front, s);
adamc@666	1361 ctx->script.front += s_len;
adamc@970	1362 strcpy(ctx->script.front, "));");
adamc@972	1363 ctx->script.front += 3;
adamc@577	1364
adamc@577	1365 return uw_unit_v;
adamc@577	1366 }
adamc@577	1367
adamc@311	1368 static void uw_check(uw_context ctx, size_t extra) {
adamc@667	1369 buf_check(&ctx->page, extra);
adamc@117	1370 }
adamc@117	1371
adamc@311	1372 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1373 *(ctx->page.front)++ = c;
adamc@117	1374 }
adamc@117	1375
adamc@311	1376 void uw_writec(uw_context ctx, char c) {
adamc@311	1377 uw_check(ctx, 1);
adamc@311	1378 uw_writec_unsafe(ctx, c);
adamc@117	1379 }
adamc@117	1380
adamc@311	1381 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1382 int len = strlen(s);
adamc@666	1383 memcpy(ctx->page.front, s, len);
adamc@666	1384 ctx->page.front += len;
adamc@117	1385 }
adamc@117	1386
adamc@311	1387 void uw_write(uw_context ctx, const char* s) {
adamc@311	1388 uw_check(ctx, strlen(s) + 1);
adamc@311	1389 uw_write_unsafe(ctx, s);
adamc@666	1390 *ctx->page.front = 0;
adamc@102	1391 }
adamc@106	1392
adamc@311	1393 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1394 char *result;
adamc@136	1395 int len;
adamc@311	1396 uw_check_heap(ctx, INTS_MAX);
adamc@666	1397 result = ctx->heap.front;
adamc@276	1398 sprintf(result, "%lld%n", n, &len);
adamc@666	1399 ctx->heap.front += len+1;
adamc@136	1400 return result;
adamc@106	1401 }
adamc@106	1402
adamc@311	1403 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1404 char *result;
adamc@136	1405 int len;
adamc@311	1406 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1407 result = ctx->heap.front;
adamc@136	1408 sprintf(result, "%g%n", n, &len);
adamc@666	1409 ctx->heap.front += len+1;
adamc@136	1410 return result;
adamc@106	1411 }
adamc@106	1412
adamc@311	1413 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1414 int len = strlen(s);
adamc@136	1415 char result, p;
adamc@311	1416 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1417
adamc@666	1418 result = p = ctx->heap.front;
adamc@136	1419
adamc@136	1420 for (; *s; s++) {
adamc@136	1421 char c = *s;
adamc@136	1422
adamc@136	1423 if (c == '"') {
adamc@136	1424 strcpy(p, """);
adamc@136	1425 p += 6;
adamc@136	1426 } else if (c == '&') {
adamc@136	1427 strcpy(p, "&");
adamc@136	1428 p += 5;
adamc@136	1429 }
adamc@136	1430 else if (isprint(c))
adamc@136	1431 *p++ = c;
adamc@136	1432 else {
adamc@136	1433 int len2;
adamc@136	1434 sprintf(p, "&#%d;%n", c, &len2);
adamc@136	1435 p += len2;
adamc@136	1436 }
adamc@136	1437 }
adamc@136	1438
adamc@137	1439 *p++ = 0;
adamc@666	1440 ctx->heap.front = p;
adamc@136	1441 return result;
adamc@106	1442 }
adamc@106	1443
adamc@1011	1444 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1445 char result, p;
adamc@1011	1446 uw_check_heap(ctx, 7);
adamc@1011	1447
adamc@1011	1448 result = p = ctx->heap.front;
adamc@1011	1449
adamc@1011	1450 if (c == '"') {
adamc@1011	1451 strcpy(p, """);
adamc@1011	1452 p += 6;
adamc@1011	1453 } else if (c == '&') {
adamc@1011	1454 strcpy(p, "&");
adamc@1011	1455 p += 5;
adamc@1011	1456 }
adamc@1011	1457 else if (isprint(c))
adamc@1011	1458 *p++ = c;
adamc@1011	1459 else {
adamc@1011	1460 int len2;
adamc@1011	1461 sprintf(p, "&#%d;%n", c, &len2);
adamc@1011	1462 p += len2;
adamc@1011	1463 }
adamc@1011	1464
adamc@1011	1465 *p++ = 0;
adamc@1011	1466 ctx->heap.front = p;
adamc@1011	1467 return result;
adamc@1011	1468 }
adamc@1011	1469
adamc@721	1470 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1471 return s;
adamc@721	1472 }
adamc@721	1473
adamc@311	1474 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1475 int len;
adamc@117	1476
adamc@666	1477 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1478 ctx->page.front += len;
adamc@106	1479 }
adamc@106	1480
adamc@428	1481 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1482 uw_check(ctx, INTS_MAX);
adamc@311	1483 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1484
adamc@428	1485 return uw_unit_v;
adamc@106	1486 }
adamc@106	1487
adamc@428	1488 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1489 int len;
adamc@117	1490
adamc@311	1491 uw_check(ctx, FLOATS_MAX);
adamc@666	1492 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1493 ctx->page.front += len;
adamc@428	1494
adamc@428	1495 return uw_unit_v;
adamc@117	1496 }
adamc@117	1497
adamc@428	1498 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1499 uw_check(ctx, strlen(s) * 6);
adamc@117	1500
adamc@106	1501 for (; *s; s++) {
adamc@106	1502 char c = *s;
adamc@106	1503
adamc@106	1504 if (c == '"')
adamc@311	1505 uw_write_unsafe(ctx, """);
adamc@136	1506 else if (c == '&')
adamc@311	1507 uw_write_unsafe(ctx, "&");
adamc@106	1508 else if (isprint(c))
adamc@311	1509 uw_writec_unsafe(ctx, c);
adamc@106	1510 else {
adamc@311	1511 uw_write_unsafe(ctx, "&#");
adamc@311	1512 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311	1513 uw_writec_unsafe(ctx, ';');
adamc@106	1514 }
adamc@106	1515 }
adamc@428	1516
adamc@428	1517 return uw_unit_v;
adamc@106	1518 }
adamc@120	1519
adamc@1011	1520 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1521 uw_check(ctx, 6);
adamc@1011	1522
adamc@1011	1523 if (c == '"')
adamc@1011	1524 uw_write_unsafe(ctx, """);
adamc@1011	1525 else if (c == '&')
adamc@1011	1526 uw_write_unsafe(ctx, "&");
adamc@1011	1527 else if (isprint(c))
adamc@1011	1528 uw_writec_unsafe(ctx, c);
adamc@1011	1529 else {
adamc@1011	1530 uw_write_unsafe(ctx, "&#");
adamc@1011	1531 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@1011	1532 uw_writec_unsafe(ctx, ';');
adamc@1011	1533 }
adamc@1011	1534
adamc@1011	1535 return uw_unit_v;
adamc@1011	1536 }
adamc@1011	1537
adamc@120	1538
adamc@311	1539 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1540 int len;
adamc@137	1541 char *r;
adamc@137	1542
adamc@311	1543 uw_check_heap(ctx, INTS_MAX);
adamc@666	1544 r = ctx->heap.front;
adamc@276	1545 sprintf(r, "%lld%n", n, &len);
adamc@666	1546 ctx->heap.front += len+1;
adamc@137	1547 return r;
adamc@120	1548 }
adamc@120	1549
adamc@682	1550 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1551 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1552 return "";
adamc@682	1553 else {
adamc@682	1554 int len;
adamc@682	1555 char *r;
adamc@679	1556
adamc@682	1557 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1558 r = ctx->heap.front;
adamc@682	1559 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1560 ctx->heap.front += len+1;
adamc@682	1561 return r;
adamc@682	1562 }
adamc@679	1563 }
adamc@679	1564
adamc@311	1565 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1566 int len;
adamc@137	1567 char *r;
adamc@137	1568
adamc@311	1569 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1570 r = ctx->heap.front;
adamc@137	1571 sprintf(r, "%g%n", n, &len);
adamc@666	1572 ctx->heap.front += len+1;
adamc@137	1573 return r;
adamc@120	1574 }
adamc@120	1575
adamc@311	1576 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1577 char r, p;
adamc@137	1578
adamc@925	1579 if (s[0] == '\0')
adamc@925	1580 return "_";
adamc@925	1581
adamc@925	1582 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1583
adamc@925	1584 r = p = ctx->heap.front;
adamc@925	1585 if (s[0] == '_')
adamc@925	1586 *p++ = '_';
adamc@925	1587
adamc@925	1588 for (; *s; s++) {
adamc@137	1589 char c = *s;
adamc@137	1590
adamc@137	1591 if (c == ' ')
adamc@137	1592 *p++ = '+';
adamc@137	1593 else if (isalnum(c))
adamc@137	1594 *p++ = c;
adamc@137	1595 else {
adamc@137	1596 sprintf(p, "%%%02X", c);
adamc@137	1597 p += 3;
adamc@137	1598 }
adamc@137	1599 }
adamc@137	1600
adamc@137	1601 *p++ = 0;
adamc@666	1602 ctx->heap.front = p;
adamc@137	1603 return r;
adamc@120	1604 }
adamc@120	1605
adamc@311	1606 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1607 if (b == uw_Basis_False)
adamc@186	1608 return "0";
adamc@186	1609 else
adamc@186	1610 return "1";
adamc@186	1611 }
adamc@186	1612
adamc@311	1613 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1614 int len;
adamc@120	1615
adamc@666	1616 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1617 ctx->page.front += len;
adamc@120	1618 }
adamc@120	1619
adamc@428	1620 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1621 uw_check(ctx, INTS_MAX);
adamc@311	1622 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1623
adamc@428	1624 return uw_unit_v;
adamc@120	1625 }
adamc@120	1626
adamc@682	1627 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1628 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1629 int len;
adamc@682	1630
adamc@682	1631 uw_check(ctx, INTS_MAX + 1);
adamc@682	1632 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1633 ctx->page.front += len;
adamc@682	1634 }
adamc@682	1635
adamc@679	1636 return uw_unit_v;
adamc@679	1637 }
adamc@679	1638
adamc@428	1639 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1640 int len;
adamc@120	1641
adamc@311	1642 uw_check(ctx, FLOATS_MAX);
adamc@666	1643 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1644 ctx->page.front += len;
adamc@428	1645
adamc@428	1646 return uw_unit_v;
adamc@120	1647 }
adamc@120	1648
adamc@488	1649 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@488	1650 return uw_Basis_urlifyInt(ctx, t);
adamc@488	1651 }
adamc@488	1652
adamc@428	1653 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1654 if (s[0] == '\0') {
adamc@925	1655 uw_check(ctx, 1);
adamc@925	1656 uw_writec_unsafe(ctx, '_');
adamc@925	1657 return uw_unit_v;
adamc@925	1658 }
adamc@925	1659
adamc@925	1660 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1661
adamc@925	1662 if (s[0] == '_')
adamc@925	1663 uw_writec_unsafe(ctx, '_');
adamc@120	1664
adamc@120	1665 for (; *s; s++) {
adamc@120	1666 char c = *s;
adamc@120	1667
adamc@120	1668 if (c == ' ')
adamc@311	1669 uw_writec_unsafe(ctx, '+');
adamc@120	1670 else if (isalnum(c))
adamc@311	1671 uw_writec_unsafe(ctx, c);
adamc@120	1672 else {
adamc@666	1673 sprintf(ctx->page.front, "%%%02X", c);
adamc@666	1674 ctx->page.front += 3;
adamc@120	1675 }
adamc@120	1676 }
adamc@428	1677
adamc@428	1678 return uw_unit_v;
adamc@120	1679 }
adamc@120	1680
adamc@428	1681 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1682 if (b == uw_Basis_False)
adamc@311	1683 uw_writec(ctx, '0');
adamc@186	1684 else
adamc@311	1685 uw_writec(ctx, '1');
adamc@428	1686
adamc@428	1687 return uw_unit_v;
adamc@186	1688 }
adamc@186	1689
adamc@120	1690
adamc@311	1691 static char uw_unurlify_advance(char s) {
adamc@144	1692 char *new_s = strchr(s, '/');
adamc@120	1693
adamc@120	1694 if (new_s)
adamc@120	1695 *new_s++ = 0;
adamc@120	1696 else
adamc@144	1697 new_s = strchr(s, 0);
adamc@144	1698
adamc@144	1699 return new_s;
adamc@144	1700 }
adamc@144	1701
adamc@311	1702 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1703 char new_s = uw_unurlify_advance(s);
adamc@311	1704 uw_Basis_int r;
adamc@120	1705
adamc@276	1706 r = atoll(*s);
adamc@120	1707 *s = new_s;
adamc@120	1708 return r;
adamc@120	1709 }
adamc@120	1710
adamc@311	1711 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1712 char new_s = uw_unurlify_advance(s);
adamc@311	1713 uw_Basis_float r;
adamc@120	1714
adamc@120	1715 r = atof(*s);
adamc@120	1716 *s = new_s;
adamc@120	1717 return r;
adamc@120	1718 }
adamc@120	1719
adamc@488	1720 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adamc@488	1721 return uw_Basis_unurlifyInt(ctx, s);
adamc@488	1722 }
adamc@488	1723
adamc@1023	1724 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1725 char s1, s2 = s;
adamc@144	1726 int n;
adamc@136	1727
adamc@1023	1728 if (!fromClient) {
adamc@1023	1729 if (*s2 == '_')
adamc@1023	1730 ++s2;
adamc@1023	1731 else if (s2[0] == '%' && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1732 s2 += 3;
adamc@1023	1733 }
adamc@925	1734
adamc@927	1735 for (s1 = r; *s2; ++s1, ++s2) {
adamc@136	1736 char c = *s2;
adamc@136	1737
adamc@136	1738 switch (c) {
adamc@136	1739 case '+':
adamc@136	1740 *s1 = ' ';
adamc@136	1741 break;
adamc@136	1742 case '%':
adamc@169	1743 if (s2[1] == 0)
adamc@311	1744 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1745 if (s2[2] == 0)
adamc@311	1746 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1747 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@311	1748 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@136	1749 *s1 = n;
adamc@136	1750 s2 += 2;
adamc@136	1751 break;
adamc@136	1752 default:
adamc@136	1753 *s1 = c;
adamc@136	1754 }
adamc@136	1755 }
adamc@136	1756 *s1++ = 0;
adamc@144	1757 return s1;
adamc@144	1758 }
adamc@144	1759
adamc@311	1760 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	1761 char new_s = uw_unurlify_advance(s);
adamc@311	1762 uw_Basis_bool r;
adamc@186	1763
adamc@186	1764 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	1765 r = uw_Basis_False;
adamc@186	1766 else
adamc@311	1767 r = uw_Basis_True;
adamc@186	1768
adamc@186	1769 *s = new_s;
adamc@186	1770 return r;
adamc@186	1771 }
adamc@186	1772
adamc@311	1773 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	1774 char new_s = uw_unurlify_advance(s);
adamc@144	1775 char r, s1, *s2;
adamc@144	1776 int len, n;
adamc@144	1777
adamc@200	1778 len = strlen(*s);
adamc@311	1779 uw_check_heap(ctx, len + 1);
adamc@144	1780
adamc@666	1781 r = ctx->heap.front;
adamc@1023	1782 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	1783 *s = new_s;
adamc@1023	1784 return r;
adamc@1023	1785 }
adamc@1023	1786
adamc@1023	1787 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	1788 char new_s = uw_unurlify_advance(s);
adamc@1023	1789 char r, s1, *s2;
adamc@1023	1790 int len, n;
adamc@1023	1791
adamc@1023	1792 len = strlen(*s);
adamc@1023	1793 uw_check_heap(ctx, len + 1);
adamc@1023	1794
adamc@1023	1795 r = ctx->heap.front;
adamc@1023	1796 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	1797 *s = new_s;
adamc@136	1798 return r;
adamc@120	1799 }
adamc@135	1800
adamc@135	1801
adamc@311	1802 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	1803 int len;
adamc@286	1804 char *r;
adamc@286	1805
adamc@311	1806 uw_check_heap(ctx, INTS_MAX);
adamc@666	1807 r = ctx->heap.front;
adamc@286	1808 sprintf(r, "%lld%n", n, &len);
adamc@666	1809 ctx->heap.front += len+1;
adamc@286	1810 return r;
adamc@286	1811 }
adamc@286	1812
adamc@428	1813 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	1814 int len;
adamc@286	1815
adamc@311	1816 uw_check(ctx, INTS_MAX);
adamc@666	1817 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1818 ctx->page.front += len;
adamc@428	1819
adamc@428	1820 return uw_unit_v;
adamc@286	1821 }
adamc@286	1822
adamc@311	1823 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	1824 int len;
adamc@286	1825 char *r;
adamc@286	1826
adamc@311	1827 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1828 r = ctx->heap.front;
adamc@286	1829 sprintf(r, "%g%n", n, &len);
adamc@666	1830 ctx->heap.front += len+1;
adamc@286	1831 return r;
adamc@286	1832 }
adamc@286	1833
adamc@428	1834 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	1835 int len;
adamc@286	1836
adamc@311	1837 uw_check(ctx, FLOATS_MAX);
adamc@666	1838 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1839 ctx->page.front += len;
adamc@428	1840
adamc@428	1841 return uw_unit_v;
adamc@286	1842 }
adamc@286	1843
adamc@311	1844 char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1845 char r, s2;
adamc@137	1846
adamc@311	1847 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	1848
adamc@666	1849 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@137	1850 char c = *s;
adamc@137	1851
adamc@137	1852 switch (c) {
adamc@137	1853 case '<':
adamc@137	1854 strcpy(s2, "<");
adamc@137	1855 s2 += 4;
adamc@137	1856 break;
adamc@137	1857 case '&':
adamc@137	1858 strcpy(s2, "&");
adamc@137	1859 s2 += 5;
adamc@137	1860 break;
adamc@137	1861 default:
adamc@137	1862 if (isprint(c))
adamc@137	1863 *s2++ = c;
adamc@137	1864 else {
adamc@137	1865 int len2;
adamc@137	1866 sprintf(s2, "&#%d;%n", c, &len2);
adamc@137	1867 s2 += len2;
adamc@137	1868 }
adamc@137	1869 }
adamc@137	1870 }
adamc@137	1871
adamc@137	1872 *s2++ = 0;
adamc@666	1873 ctx->heap.front = s2;
adamc@137	1874 return r;
adamc@135	1875 }
adamc@135	1876
adamc@428	1877 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	1878 uw_check(ctx, strlen(s) * 6);
adamc@135	1879
adamc@135	1880 for (; *s; s++) {
adamc@135	1881 char c = *s;
adamc@135	1882
adamc@135	1883 switch (c) {
adamc@135	1884 case '<':
adamc@311	1885 uw_write_unsafe(ctx, "<");
adamc@135	1886 break;
adamc@135	1887 case '&':
adamc@311	1888 uw_write_unsafe(ctx, "&");
adamc@135	1889 break;
adamc@135	1890 default:
adamc@135	1891 if (isprint(c))
adamc@311	1892 uw_writec_unsafe(ctx, c);
adamc@135	1893 else {
adamc@311	1894 uw_write_unsafe(ctx, "&#");
adamc@311	1895 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311	1896 uw_writec_unsafe(ctx, ';');
adamc@135	1897 }
adamc@135	1898 }
adamc@135	1899 }
adamc@428	1900
adamc@428	1901 return uw_unit_v;
adamc@135	1902 }
adamc@180	1903
adamc@311	1904 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1905 if (b == uw_Basis_False)
adamc@286	1906 return "False";
adamc@286	1907 else
adamc@286	1908 return "True";
adamc@286	1909 }
adamc@286	1910
adamc@428	1911 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1912 if (b == uw_Basis_False) {
adamc@311	1913 uw_check(ctx, 6);
adamc@666	1914 strcpy(ctx->page.front, "False");
adamc@666	1915 ctx->page.front += 5;
adamc@286	1916 } else {
adamc@311	1917 uw_check(ctx, 5);
adamc@666	1918 strcpy(ctx->page.front, "True");
adamc@666	1919 ctx->page.front += 4;
adamc@286	1920 }
adamc@428	1921
adamc@428	1922 return uw_unit_v;
adamc@286	1923 }
adamc@286	1924
adamc@436	1925 #define TIME_FMT "%x %X"
adamc@438	1926 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436	1927
adamc@436	1928 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436	1929 size_t len;
adamc@436	1930 char *r;
adamc@436	1931 struct tm stm;
adamc@436	1932
adamc@436	1933 if (localtime_r(&t, &stm)) {
adamc@436	1934 uw_check_heap(ctx, TIMES_MAX);
adamc@666	1935 r = ctx->heap.front;
adamc@436	1936 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	1937 ctx->heap.front += len+1;
adamc@436	1938 return r;
adamc@436	1939 } else
adamc@436	1940 return "<i>Invalid time</i>";
adamc@436	1941 }
adamc@436	1942
adamc@436	1943 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436	1944 size_t len;
adamc@436	1945 char *r;
adamc@436	1946 struct tm stm;
adamc@436	1947
adamc@436	1948 if (localtime_r(&t, &stm)) {
adamc@436	1949 uw_check(ctx, TIMES_MAX);
adamc@666	1950 r = ctx->page.front;
adamc@436	1951 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	1952 ctx->page.front += len;
adamc@436	1953 } else {
adamc@436	1954 uw_check(ctx, 20);
adamc@666	1955 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666	1956 ctx->page.front += 19;
adamc@436	1957 }
adamc@436	1958
adamc@436	1959 return uw_unit_v;
adamc@436	1960 }
adamc@436	1961
adamc@821	1962 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	1963 if (n >= 0 && n < strlen(s))
adamc@821	1964 return s[n];
adamc@821	1965 else
adamc@821	1966 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adamc@821	1967 }
adamc@821	1968
adamc@821	1969 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	1970 if (n >= 0 && n < strlen(s))
adamc@821	1971 return &s[n];
adamc@821	1972 else
adamc@821	1973 uw_error(ctx, FATAL, "Out-of-bounds strsuffix");
adamc@821	1974 }
adamc@821	1975
adamc@828	1976 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	1977 return strlen(s);
adamc@828	1978 }
adamc@828	1979
adamc@829	1980 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	1981 return strchr(s, ch);
adamc@829	1982 }
adamc@829	1983
adamc@831	1984 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	1985 return strcspn(s, chs);
adamc@831	1986 }
adamc@831	1987
adamc@829	1988 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	1989 uw_Basis_string r = strchr(s, ch);
adamc@829	1990 if (r == NULL)
adamc@829	1991 return NULL;
adamc@829	1992 else {
adamc@829	1993 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	1994 *nr = r - s;
adamc@829	1995 return nr;
adamc@829	1996 }
adamc@829	1997 }
adamc@829	1998
adamc@311	1999 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2000 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2001 char *s;
adamc@180	2002
adamc@311	2003 uw_check_heap(ctx, len);
adamc@180	2004
adamc@666	2005 s = ctx->heap.front;
adamc@180	2006
adamc@180	2007 strcpy(s, s1);
adamc@180	2008 strcat(s, s2);
adamc@666	2009 ctx->heap.front += len;
adamc@180	2010
adamc@180	2011 return s;
adamc@180	2012 }
adamc@278	2013
adamc@829	2014 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2015 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2016
adamc@829	2017 if (start < 0)
adamc@829	2018 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2019 if (len < 0)
adamc@829	2020 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2021 if (start + len > full_len)
adamc@829	2022 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2023
adamc@829	2024 if (start + len == full_len)
adamc@829	2025 return &s[start];
adamc@829	2026 else {
adamc@829	2027 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2028 memcpy(r, s+start, len);
adamc@829	2029 r[len] = 0;
adamc@829	2030 return r;
adamc@829	2031 }
adamc@829	2032
adamc@829	2033 }
adamc@829	2034
adamc@1023	2035 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2036 char *r;
adamc@1023	2037
adamc@1023	2038 uw_check_heap(ctx, 2);
adamc@1023	2039 r = ctx->heap.front;
adamc@1023	2040 r[0] = ch;
adamc@1023	2041 r[1] = 0;
adamc@1023	2042
adamc@1023	2043 ctx->heap.front += 2;
adamc@1023	2044
adamc@1023	2045 return r;
adamc@1023	2046 }
adamc@1023	2047
adamc@737	2048 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2049 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2050 char *s;
adamc@278	2051
adamc@311	2052 uw_check_heap(ctx, len);
adamc@278	2053
adamc@666	2054 s = ctx->heap.front;
adamc@278	2055
adamc@278	2056 strcpy(s, s1);
adamc@666	2057 ctx->heap.front += len;
adamc@278	2058
adamc@278	2059 return s;
adamc@278	2060 }
adamc@280	2061
adamc@737	2062 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2063 if (s1)
adamc@737	2064 return uw_strdup(ctx, s1);
adamc@493	2065 else
adamc@493	2066 return NULL;
adamc@493	2067 }
adamc@493	2068
adamc@742	2069 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2070 char *r = uw_malloc(ctx, len);
adamc@742	2071 memcpy(r, p, len);
adamc@742	2072 return r;
adamc@742	2073 }
adamc@280	2074
adamc@879	2075 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2076
adamc@311	2077 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2078 int len;
adamc@281	2079 char *r;
adamc@281	2080
adamc@311	2081 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2082 r = ctx->heap.front;
adamc@879	2083 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2084 ctx->heap.front += len+1;
adamc@281	2085 return r;
adamc@281	2086 }
adamc@281	2087
adamc@467	2088 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2089 if (n == NULL)
adamc@467	2090 return "NULL";
adamc@467	2091 else
adamc@467	2092 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2093 }
adamc@467	2094
adamc@879	2095 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879	2096
adamc@311	2097 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2098 int len;
adamc@281	2099 char *r;
adamc@281	2100
adamc@311	2101 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2102 r = ctx->heap.front;
adamc@879	2103 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2104 ctx->heap.front += len+1;
adamc@281	2105 return r;
adamc@281	2106 }
adamc@281	2107
adamc@467	2108 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2109 if (n == NULL)
adamc@467	2110 return "NULL";
adamc@467	2111 else
adamc@467	2112 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2113 }
adamc@467	2114
adamc@879	2115 int uw_Estrings = 1;
adamc@879	2116 char *uw_sqlsuffixString = "::text";
adamc@1011	2117 char *uw_sqlsuffixChar = "::char";
adamc@281	2118
adamc@311	2119 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2120 char r, s2;
adamc@280	2121
adamc@879	2122 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2123
adamc@666	2124 r = s2 = ctx->heap.front;
adamc@879	2125 if (uw_Estrings)
adamc@879	2126 *s2++ = 'E';
adamc@280	2127 *s2++ = '\'';
adamc@280	2128
adamc@280	2129 for (; *s; s++) {
adamc@280	2130 char c = *s;
adamc@280	2131
adamc@280	2132 switch (c) {
adamc@280	2133 case '\'':
adamc@885	2134 if (uw_Estrings)
adamc@885	2135 strcpy(s2, "\\'");
adamc@885	2136 else
adamc@885	2137 strcpy(s2, "''");
adamc@280	2138 s2 += 2;
adamc@280	2139 break;
adamc@280	2140 case '\\':
adamc@885	2141 if (uw_Estrings) {
adamc@885	2142 strcpy(s2, "\\\\");
adamc@885	2143 s2 += 2;
adamc@885	2144 } else
adamc@885	2145 *s2++ = '\\';
adamc@280	2146 break;
adamc@280	2147 default:
adamc@280	2148 if (isprint(c))
adamc@280	2149 *s2++ = c;
adamc@879	2150 else if (uw_Estrings) {
adamc@737	2151 sprintf(s2, "\\%03o", c);
adamc@280	2152 s2 += 4;
adamc@280	2153 }
adamc@879	2154 else
adamc@879	2155 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280	2156 }
adamc@280	2157 }
adamc@280	2158
adamc@879	2159 *s2++ = '\'';
adamc@879	2160 strcpy(s2, uw_sqlsuffixString);
adamc@879	2161 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2162 return r;
adamc@280	2163 }
adamc@281	2164
adamc@1011	2165 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2166 char r, s2;
adamc@1011	2167
adamc@1011	2168 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2169
adamc@1011	2170 r = s2 = ctx->heap.front;
adamc@1011	2171 if (uw_Estrings)
adamc@1011	2172 *s2++ = 'E';
adamc@1011	2173 *s2++ = '\'';
adamc@1011	2174
adamc@1011	2175 switch (c) {
adamc@1011	2176 case '\'':
adamc@1011	2177 if (uw_Estrings)
adamc@1011	2178 strcpy(s2, "\\'");
adamc@1011	2179 else
adamc@1011	2180 strcpy(s2, "''");
adamc@1011	2181 s2 += 2;
adamc@1011	2182 break;
adamc@1011	2183 case '\\':
adamc@1011	2184 if (uw_Estrings) {
adamc@1011	2185 strcpy(s2, "\\\\");
adamc@1011	2186 s2 += 2;
adamc@1011	2187 } else
adamc@1011	2188 *s2++ = '\\';
adamc@1011	2189 break;
adamc@1011	2190 default:
adamc@1011	2191 if (isprint(c))
adamc@1011	2192 *s2++ = c;
adamc@1011	2193 else if (uw_Estrings) {
adamc@1011	2194 sprintf(s2, "\\%03o", c);
adamc@1011	2195 s2 += 4;
adamc@1011	2196 }
adamc@1011	2197 else
adamc@1011	2198 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2199 }
adamc@1011	2200
adamc@1011	2201 *s2++ = '\'';
adamc@1011	2202 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2203 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2204 return r;
adamc@1011	2205 }
adamc@1011	2206
adamc@879	2207 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2208
adamc@737	2209 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2210 char r, s2;
adamc@737	2211 size_t i;
adamc@737	2212
adamc@879	2213 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737	2214
adamc@737	2215 r = s2 = ctx->heap.front;
adamc@879	2216 if (uw_Estrings)
adamc@879	2217 *s2++ = 'E';
adamc@737	2218 *s2++ = '\'';
adamc@737	2219
adamc@737	2220 for (i = 0; i < b.size; ++i) {
adamc@737	2221 char c = b.data[i];
adamc@737	2222
adamc@737	2223 switch (c) {
adamc@737	2224 case '\'':
adamc@885	2225 if (uw_Estrings)
adamc@885	2226 strcpy(s2, "\\'");
adamc@885	2227 else
adamc@885	2228 strcpy(s2, "''");
adamc@737	2229 s2 += 2;
adamc@737	2230 break;
adamc@737	2231 case '\\':
adamc@885	2232 if (uw_Estrings) {
adamc@885	2233 strcpy(s2, "\\\\\\\\");
adamc@885	2234 s2 += 4;
adamc@885	2235 } else
adamc@885	2236 *s2++ = '\\';
adamc@737	2237 break;
adamc@737	2238 default:
adamc@737	2239 if (isprint(c))
adamc@737	2240 *s2++ = c;
adamc@879	2241 else if (uw_Estrings) {
adamc@737	2242 sprintf(s2, "\\\\%03o", c);
adamc@737	2243 s2 += 5;
adamc@737	2244 }
adamc@879	2245 else
adamc@879	2246 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737	2247 }
adamc@737	2248 }
adamc@737	2249
adamc@879	2250 *s2++ = '\'';
adamc@879	2251 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2252 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2253 return r;
adamc@737	2254 }
adamc@737	2255
adamc@682	2256 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2257 int len;
adamc@682	2258 char *r;
adamc@682	2259 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2260
adamc@682	2261 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2262 r = ctx->heap.front;
adamc@879	2263 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2264 ctx->heap.front += len+1;
adamc@682	2265 return r;
adamc@682	2266 }
adamc@682	2267
adamc@682	2268 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2269 int len;
adamc@682	2270 char *r;
adamc@682	2271 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2272
adamc@682	2273 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2274 r = ctx->heap.front;
adamc@682	2275 sprintf(r, "%lld%n", combo, &len);
adamc@682	2276 ctx->heap.front += len+1;
adamc@682	2277 return r;
adamc@682	2278 }
adamc@682	2279
adamc@879	2280 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2281
adamc@682	2282 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2283 int len;
adamc@682	2284 char *r;
adamc@682	2285
adamc@682	2286 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2287 r = ctx->heap.front;
adamc@879	2288 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2289 ctx->heap.front += len+1;
adamc@682	2290 return r;
adamc@682	2291 }
adamc@682	2292
adamc@682	2293 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2294 int len;
adamc@682	2295 char *r;
adamc@682	2296
adamc@682	2297 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2298 r = ctx->heap.front;
adamc@682	2299 sprintf(r, "%u%n", cli, &len);
adamc@682	2300 ctx->heap.front += len+1;
adamc@682	2301 return r;
adamc@682	2302 }
adamc@682	2303
adamc@467	2304 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2305 if (s == NULL)
adamc@467	2306 return "NULL";
adamc@467	2307 else
adamc@467	2308 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2309 }
adamc@467	2310
adamc@311	2311 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2312 if (b == uw_Basis_False)
adamc@281	2313 return "FALSE";
adamc@281	2314 else
adamc@281	2315 return "TRUE";
adamc@281	2316 }
adamc@282	2317
adamc@467	2318 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2319 if (b == NULL)
adamc@467	2320 return "NULL";
adamc@467	2321 else
adamc@467	2322 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2323 }
adamc@467	2324
adamc@439	2325 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2326 size_t len;
adamc@682	2327 char r, s;
adamc@682	2328 struct tm stm;
adamc@682	2329
adamc@682	2330 if (localtime_r(&t, &stm)) {
adamc@682	2331 s = uw_malloc(ctx, TIMES_MAX);
adamc@995	2332 --stm.tm_hour;
adamc@682	2333 len = strftime(s, TIMES_MAX, TIME_FMT, &stm);
adamc@682	2334 r = uw_malloc(ctx, len + 14);
adamc@682	2335 sprintf(r, "'%s'::timestamp", s);
adamc@682	2336 return r;
adamc@682	2337 } else
adamc@682	2338 return "<Invalid time>";
adamc@682	2339 }
adamc@682	2340
adamc@682	2341 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2342 size_t len;
adamc@439	2343 char *r;
adamc@439	2344 struct tm stm;
adamc@439	2345
adamc@439	2346 if (localtime_r(&t, &stm)) {
adamc@439	2347 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2348 r = ctx->heap.front;
adamc@439	2349 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2350 ctx->heap.front += len+1;
adamc@439	2351 return r;
adamc@439	2352 } else
adamc@439	2353 return "<Invalid time>";
adamc@439	2354 }
adamc@439	2355
adamc@467	2356 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2357 if (t == NULL)
adamc@467	2358 return "NULL";
adamc@467	2359 else
adamc@467	2360 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2361 }
adamc@467	2362
adamc@311	2363 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2364 static uw_Basis_int true = 1;
adamc@311	2365 static uw_Basis_int false = 0;
adamc@282	2366
adamc@311	2367 if (b == uw_Basis_False)
adamc@282	2368 return (char *)&false;
adamc@282	2369 else
adamc@282	2370 return (char *)&true;
adamc@282	2371 }
adamc@284	2372
adamc@311	2373 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2374 int len;
adamc@284	2375 char *r;
adamc@284	2376
adamc@311	2377 uw_check_heap(ctx, INTS_MAX);
adamc@666	2378 r = ctx->heap.front;
adamc@284	2379 sprintf(r, "%lld%n", n, &len);
adamc@666	2380 ctx->heap.front += len+1;
adamc@284	2381 return r;
adamc@284	2382 }
adamc@285	2383
adamc@311	2384 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2385 int len;
adamc@285	2386 char *r;
adamc@285	2387
adamc@311	2388 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2389 r = ctx->heap.front;
adamc@285	2390 sprintf(r, "%g%n", n, &len);
adamc@666	2391 ctx->heap.front += len+1;
adamc@285	2392 return r;
adamc@285	2393 }
adamc@285	2394
adamc@821	2395 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2396 char *r = uw_malloc(ctx, 2);
adamc@821	2397 r[0] = ch;
adamc@821	2398 r[1] = 0;
adamc@821	2399 return r;
adamc@821	2400 }
adamc@821	2401
adamc@311	2402 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2403 if (b == uw_Basis_False)
adamc@285	2404 return "False";
adamc@285	2405 else
adamc@285	2406 return "True";
adamc@285	2407 }
adamc@288	2408
adamc@436	2409 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436	2410 size_t len;
adamc@436	2411 char *r;
adamc@436	2412 struct tm stm;
adamc@436	2413
adamc@436	2414 if (localtime_r(&t, &stm)) {
adamc@436	2415 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2416 r = ctx->heap.front;
adamc@436	2417 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2418 ctx->heap.front += len+1;
adamc@436	2419 return r;
adamc@436	2420 } else
adamc@436	2421 return "<Invalid time>";
adamc@436	2422 }
adamc@288	2423
adamc@311	2424 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2425 char *endptr;
adamc@311	2426 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2427
adamc@288	2428 if (s != '\0' && endptr == '\0') {
adamc@311	2429 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2430 *r = n;
adamc@288	2431 return r;
adamc@288	2432 } else
adamc@288	2433 return NULL;
adamc@288	2434 }
adamc@289	2435
adamc@311	2436 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2437 char *endptr;
adamc@311	2438 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2439
adamc@289	2440 if (s != '\0' && endptr == '\0') {
adamc@311	2441 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2442 *r = n;
adamc@289	2443 return r;
adamc@289	2444 } else
adamc@289	2445 return NULL;
adamc@289	2446 }
adamc@289	2447
adamc@821	2448 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2449 if (s[0] == 0) {
adamc@821	2450 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2451 r[0] = 0;
adamc@821	2452 return r;
adamc@821	2453 } else if (s[1] != 0)
adamc@821	2454 return NULL;
adamc@821	2455 else {
adamc@821	2456 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2457 r[0] = s[0];
adamc@821	2458 return r;
adamc@821	2459 }
adamc@821	2460 }
adamc@821	2461
adamc@311	2462 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2463 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2464 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2465
adamc@289	2466 if (!strcasecmp (s, "True"))
adamc@289	2467 return &true;
adamc@289	2468 else if (!strcasecmp (s, "False"))
adamc@289	2469 return &false;
adamc@289	2470 else
adamc@289	2471 return NULL;
adamc@289	2472 }
adamc@292	2473
adamc@436	2474 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2475 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2476 struct tm stm;
adamc@436	2477
adamc@439	2478 if (dot) {
adamc@439	2479 *dot = 0;
adamc@439	2480 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2481 *dot = '.';
adamc@439	2482 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2483 *r = mktime(&stm);
adamc@439	2484 return r;
adamc@439	2485 }
adamc@439	2486 else {
adamc@439	2487 *dot = '.';
adamc@439	2488 return NULL;
adamc@439	2489 }
adamc@436	2490 }
adamc@439	2491 else {
adamc@439	2492 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2493 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2494 *r = mktime(&stm);
adamc@439	2495 return r;
adamc@439	2496 }
adamc@439	2497 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2498 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2499 *r = mktime(&stm);
adamc@439	2500 return r;
adamc@439	2501 }
adamc@439	2502 else
adamc@439	2503 return NULL;
adamc@439	2504 }
adamc@436	2505 }
adamc@436	2506
adamc@311	2507 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2508 char *endptr;
adamc@311	2509 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2510
adamc@292	2511 if (s != '\0' && endptr == '\0')
adamc@292	2512 return n;
adamc@292	2513 else
adamc@311	2514 uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292	2515 }
adamc@293	2516
adamc@682	2517 #include <errno.h>
adamc@682	2518
adamc@678	2519 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2520 unsigned long long n;
adamc@682	2521
adamc@682	2522 if (sscanf(s, "%llu", &n) < 1)
adamc@682	2523 uw_error(ctx, FATAL, "Can't parse channel: %s", s);
adamc@682	2524 else {
adamc@682	2525 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2526 return ch;
adamc@682	2527 }
adamc@682	2528 }
adamc@682	2529
adamc@682	2530 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2531 char *endptr;
adamc@682	2532 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2533
adamc@678	2534 if (s != '\0' && endptr == '\0')
adamc@678	2535 return n;
adamc@678	2536 else
adamc@682	2537 uw_error(ctx, FATAL, "Can't parse client: %s", s);
adamc@678	2538 }
adamc@678	2539
adamc@311	2540 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2541 char *endptr;
adamc@311	2542 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2543
adamc@293	2544 if (s != '\0' && endptr == '\0')
adamc@293	2545 return n;
adamc@293	2546 else
adamc@311	2547 uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293	2548 }
adamc@293	2549
adamc@821	2550 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2551 if (s[0] == 0)
adamc@821	2552 return 0;
adamc@821	2553 else if (s[1] != 0)
adamc@821	2554 uw_error(ctx, FATAL, "Can't parse char: %s", s);
adamc@821	2555 else
adamc@821	2556 return s[0];
adamc@821	2557 }
adamc@821	2558
adamc@311	2559 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2560 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2561 return uw_Basis_True;
adamc@296	2562 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2563 return uw_Basis_False;
adamc@293	2564 else
adamc@311	2565 uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293	2566 }
adamc@436	2567
adamc@436	2568 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2569 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2570 struct tm stm = {};
adamc@436	2571
adamc@438	2572 if (dot) {
adamc@438	2573 *dot = 0;
adamc@438	2574 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2575 *dot = '.';
adamc@438	2576 return mktime(&stm);
adamc@438	2577 }
adamc@438	2578 else {
adamc@438	2579 *dot = '.';
adamc@438	2580 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2581 }
adamc@438	2582 }
adamc@438	2583 else {
adamc@439	2584 if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439	2585 return mktime(&stm);
adamc@439	2586 else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438	2587 return mktime(&stm);
adamc@438	2588 else
adamc@438	2589 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2590 }
adamc@436	2591 }
adamc@457	2592
adamc@939	2593 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adamc@939	2594 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@939	2595 struct tm stm = {};
adamc@939	2596
adamc@939	2597 if (dot) {
adamc@939	2598 *dot = 0;
adamc@939	2599 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@939	2600 *dot = '.';
adamc@939	2601 return mktime(&stm);
adamc@939	2602 }
adamc@939	2603 else {
adamc@939	2604 *dot = '.';
adamc@939	2605 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2606 }
adamc@939	2607 }
adamc@939	2608 else {
adamc@939	2609 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@939	2610 return mktime(&stm);
adamc@939	2611 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@939	2612 return mktime(&stm);
adamc@939	2613 } else
adamc@939	2614 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2615 }
adamc@939	2616 }
adamc@939	2617
adamc@742	2618 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	2619 char *r = ctx->heap.front;
adamc@742	2620 uw_Basis_blob b = {len, r};
adamc@742	2621
adamc@742	2622 uw_check_heap(ctx, len);
adamc@742	2623
adamc@742	2624 while (*s) {
adamc@742	2625 if (s[0] == '\\') {
adamc@742	2626 if (s[1] == '\\') {
adamc@742	2627 *r++ = '\\';
adamc@742	2628 s += 2;
adamc@742	2629 } else if (isdigit(s[1]) && isdigit(s[2]) && isdigit(s[3])) {
adamc@742	2630 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	2631 s += 4;
adamc@742	2632 }
adamc@742	2633 else {
adamc@742	2634 *r++ = '\\';
adamc@742	2635 ++s;
adamc@742	2636 }
adamc@742	2637 } else {
adamc@742	2638 *r++ = s[0];
adamc@742	2639 ++s;
adamc@742	2640 }
adamc@742	2641 }
adamc@742	2642
adamc@742	2643 b.size = r - ctx->heap.front;
adamc@742	2644 ctx->heap.front = r;
adamc@742	2645 return b;
adamc@742	2646 }
adamc@742	2647
adamc@1052	2648 #define THE_PAST "expires=Mon, 01-01-1970 00:00:00 GMT"
adamc@1052	2649
adamc@463	2650 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	2651 int len = strlen(c);
adamc@854	2652 char *p = ctx->outHeaders.start;
adamc@474	2653
adamc@474	2654 while (p = strstr(p, "\nSet-Cookie: ")) {
adamc@474	2655 char *p2;
adamc@474	2656 p += 13;
adamc@474	2657 p2 = strchr(p, '=');
adamc@474	2658
adamc@474	2659 if (p2) {
adamc@474	2660 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	2661
adamc@474	2662 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	2663 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	2664 return NULL;
adamc@1052	2665 else {
adamc@1052	2666 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	2667 memcpy(ret, p2+1, sz);
adamc@1052	2668 ret[sz] = 0;
adamc@1052	2669 return ret;
adamc@1052	2670 }
adamc@474	2671 }
adamc@474	2672 }
adamc@474	2673 }
adamc@463	2674
adamc@854	2675 if (p = uw_Basis_requestHeader(ctx, "Cookie")) {
adamc@1051	2676 char *p2;
adamc@1051	2677
adamc@854	2678 while (1) {
adamc@1051	2679 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1051	2680 if (p2 = strchr(p, ';')) {
adamc@1051	2681 size_t n = p2 - (p + len);
adamc@1051	2682 char *r = uw_malloc(ctx, n);
adamc@1051	2683 memcpy(r, p + 1 + len, n-1);
adamc@1051	2684 r[n-1] = 0;
adamc@1051	2685 return r;
adamc@1051	2686 } else
adamc@1051	2687 return p + 1 + len;
adamc@1051	2688 } else if (p = strchr(p, ';'))
adamc@854	2689 p += 2;
adamc@463	2690 else
adamc@463	2691 return NULL;
adamc@463	2692 }
adamc@463	2693 }
adamc@792	2694
adamc@792	2695 return NULL;
adamc@457	2696 }
adamc@462	2697
adamc@1050	2698 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	2699 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	2700 uw_write_header(ctx, c);
adamc@462	2701 uw_write_header(ctx, "=");
adamc@462	2702 uw_write_header(ctx, v);
adamc@466	2703 uw_write_header(ctx, "; path=");
adamc@466	2704 uw_write_header(ctx, prefix);
adamc@1050	2705 if (expires) {
adamc@1050	2706 char formatted[30];
adamc@1050	2707 struct tm tm;
adamc@1050	2708
adamc@1050	2709 gmtime_r(expires, &tm);
adamc@1050	2710
adamc@1050	2711 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	2712
adamc@1050	2713 uw_write_header(ctx, "; expires=");
adamc@1050	2714 uw_write_header(ctx, formatted);
adamc@1050	2715 }
adamc@1050	2716 if (secure)
adamc@1050	2717 uw_write_header(ctx, "; secure");
adamc@462	2718 uw_write_header(ctx, "\r\n");
adamc@462	2719
adamc@462	2720 return uw_unit_v;
adamc@462	2721 }
adamc@667	2722
adamc@1050	2723 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	2724 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	2725 uw_write_header(ctx, c);
adamc@1050	2726 uw_write_header(ctx, "=; path=");
adamc@1050	2727 uw_write_header(ctx, prefix);
adamc@1052	2728 uw_write_header(ctx, "; " THE_PAST "\r\n");
adamc@1050	2729
adamc@1050	2730 return uw_unit_v;
adamc@1050	2731 }
adamc@1050	2732
adamc@682	2733 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	2734 unsigned i;
adamc@682	2735 delta *d;
adamc@671	2736
adamc@682	2737 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	2738 if (ctx->deltas[i].client == client)
adamc@682	2739 return &ctx->deltas[i];
adamc@671	2740
adamc@682	2741 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@682	2742 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adamc@682	2743 buf_init(&ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	2744 }
adamc@671	2745
adamc@682	2746 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	2747 d->client = client;
adamc@682	2748 buf_reset(&d->msgs);
adamc@682	2749 return d;
adamc@671	2750 }
adamc@671	2751
adamc@668	2752 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	2753 if (ctx->client == NULL)
adamc@682	2754 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	2755
adamc@682	2756 return new_channel(ctx->client);
adamc@668	2757 }
adamc@668	2758
adamc@668	2759 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	2760 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	2761 size_t len;
adamc@682	2762 int preLen;
adamc@682	2763 char pre[INTS_MAX + 2];
adamc@668	2764
adamc@682	2765 len = strlen(msg);
adamc@682	2766
adamc@682	2767 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	2768
adamc@682	2769 buf_append(&d->msgs, pre, preLen);
adamc@682	2770 buf_append(&d->msgs, msg, len);
adamc@682	2771 buf_append(&d->msgs, "\n", 1);
adamc@671	2772
adamc@671	2773 return uw_unit_v;
adamc@668	2774 }
adamc@671	2775
adamc@671	2776 int uw_db_commit(uw_context);
adamc@671	2777 int uw_db_rollback(uw_context);
adamc@671	2778
adamc@671	2779 void uw_commit(uw_context ctx) {
adamc@682	2780 unsigned i;
adamc@671	2781
adamc@771	2782 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2783 if (ctx->transactionals[i].rollback != NULL)
adamc@771	2784 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771	2785
adamc@771	2786 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2787 if (ctx->transactionals[i].rollback == NULL)
adamc@771	2788 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771	2789
adamc@771	2790 if (uw_db_commit(ctx))
adamc@671	2791 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@682	2792
adamc@682	2793 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	2794 delta *d = &ctx->deltas[i];
adamc@682	2795 client *c = find_client(d->client);
adamc@682	2796
adamc@682	2797 assert (c != NULL && c->mode == USED);
adamc@682	2798
adamc@685	2799 client_send(c, &d->msgs);
adamc@682	2800 }
adamc@682	2801
adamc@682	2802 if (ctx->client)
adamc@685	2803 release_client(ctx->client);
adamc@771	2804
adamc@771	2805 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2806 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@916	2807
adamc@916	2808 // Splice script data into appropriate part of page
adamc@995	2809 if (ctx->returning_blob \|\| ctx->script_header[0] == 0) {
adamc@995	2810 char *start = strstr(ctx->page.start, "<sc>");
adamc@995	2811 if (start) {
adamc@995	2812 memmove(start, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 4);
adamc@995	2813 ctx->page.front -= 4;
adamc@995	2814 }
adamc@995	2815 } else if (buf_used(&ctx->script) == 0) {
adamc@916	2816 size_t len = strlen(ctx->script_header);
adamc@916	2817 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2818 if (start) {
adamc@916	2819 buf_check(&ctx->page, buf_used(&ctx->page) - 4 + len);
adamc@917	2820 start = strstr(ctx->page.start, "<sc>");
adamc@916	2821 memmove(start + len, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2822 ctx->page.front += len - 4;
adamc@916	2823 memcpy(start, ctx->script_header, len);
adamc@916	2824 }
adamc@916	2825 } else {
adamc@916	2826 size_t lenH = strlen(ctx->script_header), len = buf_used(&ctx->script);
adamc@916	2827 size_t lenP = lenH + 40 + len;
adamc@916	2828 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2829 if (start) {
adamc@916	2830 buf_check(&ctx->page, buf_used(&ctx->page) - 4 + lenP);
adamc@917	2831 start = strstr(ctx->page.start, "<sc>");
adamc@916	2832 memmove(start + lenP, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2833 ctx->page.front += lenP - 4;
adamc@916	2834 memcpy(start, ctx->script_header, lenH);
adamc@916	2835 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916	2836 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916	2837 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916	2838 }
adamc@916	2839 }
adamc@671	2840 }
adamc@671	2841
adamc@671	2842 int uw_rollback(uw_context ctx) {
adamc@771	2843 size_t i;
adamc@885	2844 cleanup *cl;
adamc@771	2845
adamc@682	2846 if (ctx->client)
adamc@685	2847 release_client(ctx->client);
adamc@671	2848
adamc@885	2849 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@885	2850 cl->func(cl->arg);
adamc@885	2851
adamc@885	2852 ctx->cleanup_front = ctx->cleanup;
adamc@885	2853
adamc@771	2854 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2855 if (ctx->transactionals[i].rollback != NULL)
adamc@771	2856 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@771	2857
adamc@771	2858 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2859 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@771	2860
adamc@671	2861 return uw_db_rollback(ctx);
adamc@671	2862 }
adamc@683	2863
adamc@771	2864 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adamc@771	2865 uw_callback free) {
adamc@771	2866 if (commit == NULL)
adamc@771	2867 uw_error(ctx, FATAL, "uw_register_transactional: NULL commit callback");
adamc@771	2868
adamc@771	2869 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@771	2870 ctx->transactionals = realloc(ctx->transactionals, ctx->used_transactionals+1);
adamc@771	2871 ++ctx->n_transactionals;
adamc@771	2872 }
adamc@771	2873
adamc@771	2874 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	2875 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	2876 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	2877 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	2878 }
adamc@771	2879
adamc@683	2880
adamc@683	2881 // "Garbage collection"
adamc@683	2882
adamc@683	2883 void uw_expunger(uw_context ctx, uw_Basis_client cli);
adamc@683	2884
adamc@683	2885 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli) {
adamc@683	2886 int r = setjmp(ctx->jmp_buf);
adamc@683	2887
adamc@684	2888 if (r == 0) {
adamc@684	2889 if (uw_db_begin(ctx))
adamc@684	2890 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@683	2891 uw_expunger(ctx, cli);
adamc@684	2892 if (uw_db_commit(ctx))
adamc@684	2893 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@684	2894 }
adamc@683	2895
adamc@683	2896 return r;
adamc@683	2897 }
adamc@683	2898
adamc@683	2899 void uw_prune_clients(uw_context ctx) {
adamc@683	2900 client c, next, *prev = NULL;
adamc@683	2901 time_t cutoff;
adamc@683	2902
adamc@683	2903 cutoff = time(NULL) - uw_timeout;
adamc@683	2904
adamc@683	2905 pthread_mutex_lock(&clients_mutex);
adamc@683	2906
adamc@683	2907 for (c = clients_used; c; c = next) {
adamc@683	2908 next = c->next;
adamc@683	2909 pthread_mutex_lock(&c->lock);
adamc@685	2910 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	2911 failure_kind fk = UNLIMITED_RETRY;
adamc@683	2912 if (prev)
adamc@683	2913 prev->next = next;
adamc@683	2914 else
adamc@683	2915 clients_used = next;
adamc@684	2916 uw_reset(ctx);
adamc@683	2917 while (fk == UNLIMITED_RETRY) {
adamc@683	2918 fk = uw_expunge(ctx, c->id);
adamc@684	2919 if (fk == UNLIMITED_RETRY) {
adamc@684	2920 uw_db_rollback(ctx);
adamc@684	2921 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	2922 }
adamc@683	2923 }
adamc@684	2924 if (fk == SUCCESS)
adamc@684	2925 free_client(c);
adamc@684	2926 else {
adamc@684	2927 uw_db_rollback(ctx);
adamc@856	2928 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@684	2929 }
adamc@683	2930 }
adamc@683	2931 else
adamc@683	2932 prev = c;
adamc@683	2933 pthread_mutex_unlock(&c->lock);
adamc@683	2934 }
adamc@683	2935
adamc@683	2936 pthread_mutex_unlock(&clients_mutex);
adamc@683	2937 }
adamc@687	2938
adamc@687	2939 void uw_initializer(uw_context ctx);
adamc@687	2940
adamc@687	2941 failure_kind uw_initialize(uw_context ctx) {
adamc@687	2942 int r = setjmp(ctx->jmp_buf);
adamc@687	2943
adamc@687	2944 if (r == 0) {
adamc@687	2945 if (uw_db_begin(ctx))
adamc@687	2946 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@687	2947 uw_initializer(ctx);
adamc@687	2948 if (uw_db_commit(ctx))
adamc@687	2949 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	2950 }
adamc@687	2951
adamc@687	2952 return r;
adamc@687	2953 }
adamc@717	2954
adamc@770	2955 extern int uw_check_url(const char *);
adamc@770	2956 extern int uw_check_mime(const char *);
adamc@770	2957
adamc@717	2958 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@770	2959 if (uw_check_url(s))
adamc@770	2960 return s;
adamc@770	2961 else
adamc@770	2962 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	2963 }
adamc@734	2964
adamc@770	2965 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@770	2966 if (uw_check_url(s))
adamc@770	2967 return s;
adamc@770	2968 else
adamc@770	2969 return NULL;
adamc@770	2970 }
adamc@770	2971
adamc@770	2972 int mime_format(const char *s) {
adamc@770	2973 for (; *s; ++s)
adamc@770	2974 if (!isalnum(s) && s != '/' && s != '-' && s != '.')
adamc@770	2975 return 0;
adamc@770	2976
adamc@770	2977 return 1;
adamc@770	2978 }
adamc@770	2979
adamc@741	2980 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	2981 if (!mime_format(s))
adamc@770	2982 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	2983
adamc@770	2984 if (uw_check_mime(s))
adamc@770	2985 return s;
adamc@770	2986 else
adamc@770	2987 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	2988 }
adamc@770	2989
adamc@770	2990 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	2991 if (!mime_format(s))
adamc@770	2992 return NULL;
adamc@770	2993
adamc@770	2994 if (uw_check_mime(s))
adamc@770	2995 return s;
adamc@770	2996 else
adamc@770	2997 return NULL;
adamc@741	2998 }
adamc@741	2999
adamc@734	3000 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3001 return s ? s : "";
adamc@734	3002 }
adamc@734	3003
adamc@734	3004 extern int uw_hash_blocksize;
adamc@734	3005
adamc@734	3006 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3007 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3008 int i;
adamc@734	3009
adamc@734	3010 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3011 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3012
adamc@734	3013 return r;
adamc@734	3014 }
adamc@734	3015
adamc@734	3016 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@734	3017 return uw_cookie_sig(ctx);
adamc@734	3018 }
adamc@737	3019
adamc@737	3020 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3021 return f.name;
adamc@737	3022 }
adamc@737	3023
adamc@740	3024 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3025 return f.type;
adamc@740	3026 }
adamc@740	3027
adamc@745	3028 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3029 return b.size;
adamc@745	3030 }
adamc@745	3031
adamc@737	3032 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3033 return f.data;
adamc@737	3034 }
adamc@741	3035
adamc@741	3036 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3037 cleanup *cl;
adamc@741	3038 int len;
adamc@741	3039
adamc@921	3040 ctx->returning_blob = 1;
adamc@741	3041 buf_reset(&ctx->outHeaders);
adamc@741	3042 buf_reset(&ctx->page);
adamc@741	3043
adamc@856	3044 uw_write_header(ctx, on_success);
adamc@856	3045 uw_write_header(ctx, "Content-Type: ");
adamc@741	3046 uw_write_header(ctx, mimeType);
adamc@741	3047 uw_write_header(ctx, "\r\nContent-Length: ");
adamc@741	3048 buf_check(&ctx->outHeaders, INTS_MAX);
adamc@741	3049 sprintf(ctx->outHeaders.front, "%d%n", b.size, &len);
adamc@741	3050 ctx->outHeaders.front += len;
adamc@741	3051 uw_write_header(ctx, "\r\n");
adamc@741	3052
adamc@741	3053 buf_append(&ctx->page, b.data, b.size);
adamc@741	3054
adamc@741	3055 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3056 cl->func(cl->arg);
adamc@741	3057
adamc@741	3058 ctx->cleanup_front = ctx->cleanup;
adamc@741	3059
adamc@741	3060 longjmp(ctx->jmp_buf, RETURN_BLOB);
adamc@741	3061 }
adamc@874	3062
adamc@874	3063 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adamc@874	3064 uw_Basis_string r = uw_malloc(ctx, strlen(s) + 1);
adamc@874	3065
adamc@874	3066 for (; *s; ++s) {
adamc@874	3067 if (s[0] == '\'') {
adamc@874	3068 *r++ = '\'';
adamc@874	3069 for (++s; *s; ++s) {
adamc@874	3070 if (s[0] == '\'') {
adamc@874	3071 *r++ = '\'';
adamc@874	3072 break;
adamc@874	3073 } else if (s[0] == '\\') {
adamc@874	3074 if (s[1] == '\\') {
adamc@874	3075 *r++ = '\\';
adamc@874	3076 *r++ = '\\';
adamc@874	3077 ++s;
adamc@874	3078 } else if (s[1] == '\'') {
adamc@874	3079 *r++ = '\\';
adamc@874	3080 *r++ = '\'';
adamc@874	3081 ++s;
adamc@874	3082 } else
adamc@874	3083 *r++ = '\'';
adamc@874	3084 } else
adamc@874	3085 *r++ = s[0];
adamc@874	3086 }
adamc@874	3087 if (*s == 0) break;
adamc@874	3088 } else if (s[0] == 'T' && s[1] == '.')
adamc@874	3089 ++s;
adamc@874	3090 else
adamc@874	3091 *r++ = s[0];
adamc@874	3092 }
adamc@874	3093
adamc@874	3094 return r;
adamc@874	3095 }
adamc@874	3096
adamc@922	3097 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3098 va_list ap;
adamc@922	3099 size_t len = 1;
adamc@922	3100 char s, r, *s2;
adamc@922	3101
adamc@922	3102 va_start(ap, ctx);
adamc@922	3103 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3104 len += strlen(s);
adamc@922	3105 va_end(ap);
adamc@922	3106
adamc@922	3107 r = uw_malloc(ctx, len);
adamc@922	3108 va_start(ap, ctx);
adamc@922	3109 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3110 while (*s)
adamc@922	3111 s2++ = s++;
adamc@922	3112 va_end(ap);
adamc@922	3113 *s2 = 0;
adamc@922	3114
adamc@922	3115 return r;
adamc@922	3116 }
adamc@1006	3117
adamc@1050	3118 const uw_Basis_time minTime = 0;
adamc@1050	3119
adamc@1006	3120 uw_Basis_time uw_Basis_now(uw_context ctx) {
adamc@1006	3121 return time(NULL);
adamc@1006	3122 }

Mercurial > urweb

annotate src/c/urweb.c @ 1052:7e3226c97678