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

annotate src/c/urweb.c @ 1056:c42bfbd75ca9

New release

author	Adam Chlipala <adamc@hcoop.net>
date	Thu, 03 Dec 2009 14:32:47 -0500
parents	118a5a08a881
children	03a81e26e5fe

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@1054	1413 static int isCont(unsigned char ch) {
adamc@1054	1414 return ch / 64 == 2;
adamc@1054	1415 }
adamc@1054	1416
adamc@311	1417 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1418 int len = strlen(s);
adamc@136	1419 char result, p;
adamc@311	1420 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1421
adamc@666	1422 result = p = ctx->heap.front;
adamc@136	1423
adamc@136	1424 for (; *s; s++) {
adamc@1054	1425 unsigned char c = *s;
adamc@136	1426
adamc@136	1427 if (c == '"') {
adamc@136	1428 strcpy(p, """);
adamc@136	1429 p += 6;
adamc@136	1430 } else if (c == '&') {
adamc@136	1431 strcpy(p, "&");
adamc@136	1432 p += 5;
adamc@136	1433 }
adamc@136	1434 else if (isprint(c))
adamc@136	1435 *p++ = c;
adamc@1054	1436 else if (c / 32 == 6 && isCont(s[1])) {
adamc@1054	1437 memcpy(p, s, 2);
adamc@1054	1438 p += 2;
adamc@1054	1439 ++s;
adamc@1054	1440 } else if (c / 16 == 14 && isCont(s[1]) && isCont(s[2])) {
adamc@1054	1441 memcpy(p, s, 3);
adamc@1054	1442 p += 3;
adamc@1054	1443 s += 2;
adamc@1054	1444 } else if (c / 8 == 30 && isCont(s[1]) && isCont(s[2]) && isCont(s[3])) {
adamc@1054	1445 memcpy(p, s, 4);
adamc@1054	1446 p += 4;
adamc@1054	1447 s += 3;
adamc@1054	1448 } else {
adamc@136	1449 int len2;
adamc@136	1450 sprintf(p, "&#%d;%n", c, &len2);
adamc@136	1451 p += len2;
adamc@136	1452 }
adamc@136	1453 }
adamc@136	1454
adamc@137	1455 *p++ = 0;
adamc@666	1456 ctx->heap.front = p;
adamc@136	1457 return result;
adamc@106	1458 }
adamc@106	1459
adamc@1011	1460 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1461 char result, p;
adamc@1011	1462 uw_check_heap(ctx, 7);
adamc@1011	1463
adamc@1011	1464 result = p = ctx->heap.front;
adamc@1011	1465
adamc@1011	1466 if (c == '"') {
adamc@1011	1467 strcpy(p, """);
adamc@1011	1468 p += 6;
adamc@1011	1469 } else if (c == '&') {
adamc@1011	1470 strcpy(p, "&");
adamc@1011	1471 p += 5;
adamc@1011	1472 }
adamc@1011	1473 else if (isprint(c))
adamc@1011	1474 *p++ = c;
adamc@1011	1475 else {
adamc@1011	1476 int len2;
adamc@1011	1477 sprintf(p, "&#%d;%n", c, &len2);
adamc@1011	1478 p += len2;
adamc@1011	1479 }
adamc@1011	1480
adamc@1011	1481 *p++ = 0;
adamc@1011	1482 ctx->heap.front = p;
adamc@1011	1483 return result;
adamc@1011	1484 }
adamc@1011	1485
adamc@721	1486 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1487 return s;
adamc@721	1488 }
adamc@721	1489
adamc@311	1490 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1491 int len;
adamc@117	1492
adamc@666	1493 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1494 ctx->page.front += len;
adamc@106	1495 }
adamc@106	1496
adamc@428	1497 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1498 uw_check(ctx, INTS_MAX);
adamc@311	1499 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1500
adamc@428	1501 return uw_unit_v;
adamc@106	1502 }
adamc@106	1503
adamc@428	1504 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1505 int len;
adamc@117	1506
adamc@311	1507 uw_check(ctx, FLOATS_MAX);
adamc@666	1508 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1509 ctx->page.front += len;
adamc@428	1510
adamc@428	1511 return uw_unit_v;
adamc@117	1512 }
adamc@117	1513
adamc@428	1514 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1515 uw_check(ctx, strlen(s) * 6);
adamc@117	1516
adamc@106	1517 for (; *s; s++) {
adamc@1054	1518 unsigned char c = *s;
adamc@106	1519
adamc@106	1520 if (c == '"')
adamc@311	1521 uw_write_unsafe(ctx, """);
adamc@136	1522 else if (c == '&')
adamc@311	1523 uw_write_unsafe(ctx, "&");
adamc@106	1524 else if (isprint(c))
adamc@311	1525 uw_writec_unsafe(ctx, c);
adamc@1054	1526 else if (c / 32 == 6 && isCont(s[1])) {
adamc@1054	1527 uw_writec_unsafe(ctx, c);
adamc@1054	1528 uw_writec_unsafe(ctx, s[1]);
adamc@1054	1529 ++s;
adamc@1054	1530 } else if (c / 16 == 14 && isCont(s[1]) && isCont(s[2])) {
adamc@1054	1531 uw_writec_unsafe(ctx, c);
adamc@1054	1532 uw_writec_unsafe(ctx, s[1]);
adamc@1054	1533 uw_writec_unsafe(ctx, s[2]);
adamc@1054	1534 s += 2;
adamc@1054	1535 } else if (c / 8 == 30 && isCont(s[1]) && isCont(s[2]) && isCont(s[3])) {
adamc@1054	1536 uw_writec_unsafe(ctx, c);
adamc@1054	1537 uw_writec_unsafe(ctx, s[1]);
adamc@1054	1538 uw_writec_unsafe(ctx, s[2]);
adamc@1054	1539 uw_writec_unsafe(ctx, s[3]);
adamc@1054	1540 s += 3;
adamc@1054	1541 } else {
adamc@311	1542 uw_write_unsafe(ctx, "&#");
adamc@311	1543 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311	1544 uw_writec_unsafe(ctx, ';');
adamc@106	1545 }
adamc@106	1546 }
adamc@428	1547
adamc@428	1548 return uw_unit_v;
adamc@106	1549 }
adamc@120	1550
adamc@1011	1551 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1552 uw_check(ctx, 6);
adamc@1011	1553
adamc@1011	1554 if (c == '"')
adamc@1011	1555 uw_write_unsafe(ctx, """);
adamc@1011	1556 else if (c == '&')
adamc@1011	1557 uw_write_unsafe(ctx, "&");
adamc@1011	1558 else if (isprint(c))
adamc@1011	1559 uw_writec_unsafe(ctx, c);
adamc@1011	1560 else {
adamc@1011	1561 uw_write_unsafe(ctx, "&#");
adamc@1011	1562 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@1011	1563 uw_writec_unsafe(ctx, ';');
adamc@1011	1564 }
adamc@1011	1565
adamc@1011	1566 return uw_unit_v;
adamc@1011	1567 }
adamc@1011	1568
adamc@120	1569
adamc@311	1570 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1571 int len;
adamc@137	1572 char *r;
adamc@137	1573
adamc@311	1574 uw_check_heap(ctx, INTS_MAX);
adamc@666	1575 r = ctx->heap.front;
adamc@276	1576 sprintf(r, "%lld%n", n, &len);
adamc@666	1577 ctx->heap.front += len+1;
adamc@137	1578 return r;
adamc@120	1579 }
adamc@120	1580
adamc@682	1581 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1582 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1583 return "";
adamc@682	1584 else {
adamc@682	1585 int len;
adamc@682	1586 char *r;
adamc@679	1587
adamc@682	1588 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1589 r = ctx->heap.front;
adamc@682	1590 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1591 ctx->heap.front += len+1;
adamc@682	1592 return r;
adamc@682	1593 }
adamc@679	1594 }
adamc@679	1595
adamc@311	1596 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1597 int len;
adamc@137	1598 char *r;
adamc@137	1599
adamc@311	1600 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1601 r = ctx->heap.front;
adamc@137	1602 sprintf(r, "%g%n", n, &len);
adamc@666	1603 ctx->heap.front += len+1;
adamc@137	1604 return r;
adamc@120	1605 }
adamc@120	1606
adamc@311	1607 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1608 char r, p;
adamc@137	1609
adamc@925	1610 if (s[0] == '\0')
adamc@925	1611 return "_";
adamc@925	1612
adamc@925	1613 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1614
adamc@925	1615 r = p = ctx->heap.front;
adamc@925	1616 if (s[0] == '_')
adamc@925	1617 *p++ = '_';
adamc@925	1618
adamc@925	1619 for (; *s; s++) {
adamc@137	1620 char c = *s;
adamc@137	1621
adamc@137	1622 if (c == ' ')
adamc@137	1623 *p++ = '+';
adamc@137	1624 else if (isalnum(c))
adamc@137	1625 *p++ = c;
adamc@137	1626 else {
adamc@137	1627 sprintf(p, "%%%02X", c);
adamc@137	1628 p += 3;
adamc@137	1629 }
adamc@137	1630 }
adamc@137	1631
adamc@137	1632 *p++ = 0;
adamc@666	1633 ctx->heap.front = p;
adamc@137	1634 return r;
adamc@120	1635 }
adamc@120	1636
adamc@311	1637 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1638 if (b == uw_Basis_False)
adamc@186	1639 return "0";
adamc@186	1640 else
adamc@186	1641 return "1";
adamc@186	1642 }
adamc@186	1643
adamc@311	1644 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1645 int len;
adamc@120	1646
adamc@666	1647 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1648 ctx->page.front += len;
adamc@120	1649 }
adamc@120	1650
adamc@428	1651 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1652 uw_check(ctx, INTS_MAX);
adamc@311	1653 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1654
adamc@428	1655 return uw_unit_v;
adamc@120	1656 }
adamc@120	1657
adamc@682	1658 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1659 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1660 int len;
adamc@682	1661
adamc@682	1662 uw_check(ctx, INTS_MAX + 1);
adamc@682	1663 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1664 ctx->page.front += len;
adamc@682	1665 }
adamc@682	1666
adamc@679	1667 return uw_unit_v;
adamc@679	1668 }
adamc@679	1669
adamc@428	1670 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1671 int len;
adamc@120	1672
adamc@311	1673 uw_check(ctx, FLOATS_MAX);
adamc@666	1674 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1675 ctx->page.front += len;
adamc@428	1676
adamc@428	1677 return uw_unit_v;
adamc@120	1678 }
adamc@120	1679
adamc@488	1680 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@488	1681 return uw_Basis_urlifyInt(ctx, t);
adamc@488	1682 }
adamc@488	1683
adamc@428	1684 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1685 if (s[0] == '\0') {
adamc@925	1686 uw_check(ctx, 1);
adamc@925	1687 uw_writec_unsafe(ctx, '_');
adamc@925	1688 return uw_unit_v;
adamc@925	1689 }
adamc@925	1690
adamc@925	1691 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1692
adamc@925	1693 if (s[0] == '_')
adamc@925	1694 uw_writec_unsafe(ctx, '_');
adamc@120	1695
adamc@120	1696 for (; *s; s++) {
adamc@120	1697 char c = *s;
adamc@120	1698
adamc@120	1699 if (c == ' ')
adamc@311	1700 uw_writec_unsafe(ctx, '+');
adamc@120	1701 else if (isalnum(c))
adamc@311	1702 uw_writec_unsafe(ctx, c);
adamc@120	1703 else {
adamc@666	1704 sprintf(ctx->page.front, "%%%02X", c);
adamc@666	1705 ctx->page.front += 3;
adamc@120	1706 }
adamc@120	1707 }
adamc@428	1708
adamc@428	1709 return uw_unit_v;
adamc@120	1710 }
adamc@120	1711
adamc@428	1712 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1713 if (b == uw_Basis_False)
adamc@311	1714 uw_writec(ctx, '0');
adamc@186	1715 else
adamc@311	1716 uw_writec(ctx, '1');
adamc@428	1717
adamc@428	1718 return uw_unit_v;
adamc@186	1719 }
adamc@186	1720
adamc@120	1721
adamc@311	1722 static char uw_unurlify_advance(char s) {
adamc@144	1723 char *new_s = strchr(s, '/');
adamc@120	1724
adamc@120	1725 if (new_s)
adamc@120	1726 *new_s++ = 0;
adamc@120	1727 else
adamc@144	1728 new_s = strchr(s, 0);
adamc@144	1729
adamc@144	1730 return new_s;
adamc@144	1731 }
adamc@144	1732
adamc@311	1733 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1734 char new_s = uw_unurlify_advance(s);
adamc@311	1735 uw_Basis_int r;
adamc@120	1736
adamc@276	1737 r = atoll(*s);
adamc@120	1738 *s = new_s;
adamc@120	1739 return r;
adamc@120	1740 }
adamc@120	1741
adamc@311	1742 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1743 char new_s = uw_unurlify_advance(s);
adamc@311	1744 uw_Basis_float r;
adamc@120	1745
adamc@120	1746 r = atof(*s);
adamc@120	1747 *s = new_s;
adamc@120	1748 return r;
adamc@120	1749 }
adamc@120	1750
adamc@488	1751 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adamc@488	1752 return uw_Basis_unurlifyInt(ctx, s);
adamc@488	1753 }
adamc@488	1754
adamc@1023	1755 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1756 char s1, s2 = s;
adamc@144	1757 int n;
adamc@136	1758
adamc@1023	1759 if (!fromClient) {
adamc@1023	1760 if (*s2 == '_')
adamc@1023	1761 ++s2;
adamc@1023	1762 else if (s2[0] == '%' && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1763 s2 += 3;
adamc@1023	1764 }
adamc@925	1765
adamc@927	1766 for (s1 = r; *s2; ++s1, ++s2) {
adamc@136	1767 char c = *s2;
adamc@136	1768
adamc@136	1769 switch (c) {
adamc@136	1770 case '+':
adamc@136	1771 *s1 = ' ';
adamc@136	1772 break;
adamc@136	1773 case '%':
adamc@169	1774 if (s2[1] == 0)
adamc@311	1775 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1776 if (s2[2] == 0)
adamc@311	1777 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1778 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@311	1779 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@136	1780 *s1 = n;
adamc@136	1781 s2 += 2;
adamc@136	1782 break;
adamc@136	1783 default:
adamc@136	1784 *s1 = c;
adamc@136	1785 }
adamc@136	1786 }
adamc@136	1787 *s1++ = 0;
adamc@144	1788 return s1;
adamc@144	1789 }
adamc@144	1790
adamc@311	1791 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	1792 char new_s = uw_unurlify_advance(s);
adamc@311	1793 uw_Basis_bool r;
adamc@186	1794
adamc@186	1795 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	1796 r = uw_Basis_False;
adamc@186	1797 else
adamc@311	1798 r = uw_Basis_True;
adamc@186	1799
adamc@186	1800 *s = new_s;
adamc@186	1801 return r;
adamc@186	1802 }
adamc@186	1803
adamc@311	1804 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	1805 char new_s = uw_unurlify_advance(s);
adamc@144	1806 char r, s1, *s2;
adamc@144	1807 int len, n;
adamc@144	1808
adamc@200	1809 len = strlen(*s);
adamc@311	1810 uw_check_heap(ctx, len + 1);
adamc@144	1811
adamc@666	1812 r = ctx->heap.front;
adamc@1023	1813 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	1814 *s = new_s;
adamc@1023	1815 return r;
adamc@1023	1816 }
adamc@1023	1817
adamc@1023	1818 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	1819 char new_s = uw_unurlify_advance(s);
adamc@1023	1820 char r, s1, *s2;
adamc@1023	1821 int len, n;
adamc@1023	1822
adamc@1023	1823 len = strlen(*s);
adamc@1023	1824 uw_check_heap(ctx, len + 1);
adamc@1023	1825
adamc@1023	1826 r = ctx->heap.front;
adamc@1023	1827 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	1828 *s = new_s;
adamc@136	1829 return r;
adamc@120	1830 }
adamc@135	1831
adamc@135	1832
adamc@311	1833 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	1834 int len;
adamc@286	1835 char *r;
adamc@286	1836
adamc@311	1837 uw_check_heap(ctx, INTS_MAX);
adamc@666	1838 r = ctx->heap.front;
adamc@286	1839 sprintf(r, "%lld%n", n, &len);
adamc@666	1840 ctx->heap.front += len+1;
adamc@286	1841 return r;
adamc@286	1842 }
adamc@286	1843
adamc@428	1844 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	1845 int len;
adamc@286	1846
adamc@311	1847 uw_check(ctx, INTS_MAX);
adamc@666	1848 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1849 ctx->page.front += len;
adamc@428	1850
adamc@428	1851 return uw_unit_v;
adamc@286	1852 }
adamc@286	1853
adamc@311	1854 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	1855 int len;
adamc@286	1856 char *r;
adamc@286	1857
adamc@311	1858 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1859 r = ctx->heap.front;
adamc@286	1860 sprintf(r, "%g%n", n, &len);
adamc@666	1861 ctx->heap.front += len+1;
adamc@286	1862 return r;
adamc@286	1863 }
adamc@286	1864
adamc@428	1865 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	1866 int len;
adamc@286	1867
adamc@311	1868 uw_check(ctx, FLOATS_MAX);
adamc@666	1869 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1870 ctx->page.front += len;
adamc@428	1871
adamc@428	1872 return uw_unit_v;
adamc@286	1873 }
adamc@286	1874
adamc@311	1875 char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1876 char r, s2;
adamc@137	1877
adamc@311	1878 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	1879
adamc@666	1880 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	1881 unsigned char c = *s;
adamc@137	1882
adamc@137	1883 switch (c) {
adamc@137	1884 case '<':
adamc@137	1885 strcpy(s2, "<");
adamc@137	1886 s2 += 4;
adamc@137	1887 break;
adamc@137	1888 case '&':
adamc@137	1889 strcpy(s2, "&");
adamc@137	1890 s2 += 5;
adamc@137	1891 break;
adamc@137	1892 default:
adamc@1054	1893 if (isprint(c) \|\| isspace(c))
adamc@137	1894 *s2++ = c;
adamc@1054	1895 else if (c / 32 == 6 && isCont(s[1])) {
adamc@1054	1896 memcpy(s2, s, 2);
adamc@1054	1897 s2 += 2;
adamc@1054	1898 ++s;
adamc@1054	1899 } else if (c / 16 == 14 && isCont(s[1]) && isCont(s[2])) {
adamc@1054	1900 memcpy(s2, s, 3);
adamc@1054	1901 s2 += 3;
adamc@1054	1902 s += 2;
adamc@1054	1903 } else if (c / 8 == 30 && isCont(s[1]) && isCont(s[2]) && isCont(s[3])) {
adamc@1054	1904 memcpy(s2, s, 4);
adamc@1054	1905 s2 += 4;
adamc@1054	1906 s += 3;
adamc@1054	1907 } else {
adamc@137	1908 int len2;
adamc@137	1909 sprintf(s2, "&#%d;%n", c, &len2);
adamc@137	1910 s2 += len2;
adamc@137	1911 }
adamc@137	1912 }
adamc@137	1913 }
adamc@137	1914
adamc@137	1915 *s2++ = 0;
adamc@666	1916 ctx->heap.front = s2;
adamc@137	1917 return r;
adamc@135	1918 }
adamc@135	1919
adamc@428	1920 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	1921 uw_check(ctx, strlen(s) * 6);
adamc@135	1922
adamc@135	1923 for (; *s; s++) {
adamc@1054	1924 unsigned char c = *s;
adamc@135	1925
adamc@135	1926 switch (c) {
adamc@135	1927 case '<':
adamc@311	1928 uw_write_unsafe(ctx, "<");
adamc@135	1929 break;
adamc@135	1930 case '&':
adamc@311	1931 uw_write_unsafe(ctx, "&");
adamc@135	1932 break;
adamc@135	1933 default:
adamc@1054	1934 if (isprint(c) \|\| isspace(c))
adamc@311	1935 uw_writec_unsafe(ctx, c);
adamc@1054	1936 else if (c / 32 == 6 && isCont(s[1])) {
adamc@1054	1937 uw_writec_unsafe(ctx, c);
adamc@1054	1938 uw_writec_unsafe(ctx, s[1]);
adamc@1054	1939 ++s;
adamc@1054	1940 } else if (c / 16 == 14 && isCont(s[1]) && isCont(s[2])) {
adamc@1054	1941 uw_writec_unsafe(ctx, c);
adamc@1054	1942 uw_writec_unsafe(ctx, s[1]);
adamc@1054	1943 uw_writec_unsafe(ctx, s[2]);
adamc@1054	1944 s += 2;
adamc@1054	1945 } else if (c / 8 == 30 && isCont(s[1]) && isCont(s[2]) && isCont(s[3])) {
adamc@1054	1946 uw_writec_unsafe(ctx, c);
adamc@1054	1947 uw_writec_unsafe(ctx, s[1]);
adamc@1054	1948 uw_writec_unsafe(ctx, s[2]);
adamc@1054	1949 uw_writec_unsafe(ctx, s[3]);
adamc@1054	1950 s += 3;
adamc@1054	1951 } else {
adamc@311	1952 uw_write_unsafe(ctx, "&#");
adamc@311	1953 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311	1954 uw_writec_unsafe(ctx, ';');
adamc@135	1955 }
adamc@135	1956 }
adamc@135	1957 }
adamc@428	1958
adamc@428	1959 return uw_unit_v;
adamc@135	1960 }
adamc@180	1961
adamc@311	1962 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1963 if (b == uw_Basis_False)
adamc@286	1964 return "False";
adamc@286	1965 else
adamc@286	1966 return "True";
adamc@286	1967 }
adamc@286	1968
adamc@428	1969 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1970 if (b == uw_Basis_False) {
adamc@311	1971 uw_check(ctx, 6);
adamc@666	1972 strcpy(ctx->page.front, "False");
adamc@666	1973 ctx->page.front += 5;
adamc@286	1974 } else {
adamc@311	1975 uw_check(ctx, 5);
adamc@666	1976 strcpy(ctx->page.front, "True");
adamc@666	1977 ctx->page.front += 4;
adamc@286	1978 }
adamc@428	1979
adamc@428	1980 return uw_unit_v;
adamc@286	1981 }
adamc@286	1982
adamc@436	1983 #define TIME_FMT "%x %X"
adamc@438	1984 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436	1985
adamc@436	1986 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436	1987 size_t len;
adamc@436	1988 char *r;
adamc@436	1989 struct tm stm;
adamc@436	1990
adamc@436	1991 if (localtime_r(&t, &stm)) {
adamc@436	1992 uw_check_heap(ctx, TIMES_MAX);
adamc@666	1993 r = ctx->heap.front;
adamc@436	1994 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	1995 ctx->heap.front += len+1;
adamc@436	1996 return r;
adamc@436	1997 } else
adamc@436	1998 return "<i>Invalid time</i>";
adamc@436	1999 }
adamc@436	2000
adamc@436	2001 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436	2002 size_t len;
adamc@436	2003 char *r;
adamc@436	2004 struct tm stm;
adamc@436	2005
adamc@436	2006 if (localtime_r(&t, &stm)) {
adamc@436	2007 uw_check(ctx, TIMES_MAX);
adamc@666	2008 r = ctx->page.front;
adamc@436	2009 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2010 ctx->page.front += len;
adamc@436	2011 } else {
adamc@436	2012 uw_check(ctx, 20);
adamc@666	2013 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666	2014 ctx->page.front += 19;
adamc@436	2015 }
adamc@436	2016
adamc@436	2017 return uw_unit_v;
adamc@436	2018 }
adamc@436	2019
adamc@821	2020 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	2021 if (n >= 0 && n < strlen(s))
adamc@821	2022 return s[n];
adamc@821	2023 else
adamc@821	2024 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adamc@821	2025 }
adamc@821	2026
adamc@821	2027 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	2028 if (n >= 0 && n < strlen(s))
adamc@821	2029 return &s[n];
adamc@821	2030 else
adamc@821	2031 uw_error(ctx, FATAL, "Out-of-bounds strsuffix");
adamc@821	2032 }
adamc@821	2033
adamc@828	2034 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2035 return strlen(s);
adamc@828	2036 }
adamc@828	2037
adamc@829	2038 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2039 return strchr(s, ch);
adamc@829	2040 }
adamc@829	2041
adamc@831	2042 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2043 return strcspn(s, chs);
adamc@831	2044 }
adamc@831	2045
adamc@829	2046 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2047 uw_Basis_string r = strchr(s, ch);
adamc@829	2048 if (r == NULL)
adamc@829	2049 return NULL;
adamc@829	2050 else {
adamc@829	2051 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2052 *nr = r - s;
adamc@829	2053 return nr;
adamc@829	2054 }
adamc@829	2055 }
adamc@829	2056
adamc@311	2057 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2058 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2059 char *s;
adamc@180	2060
adamc@311	2061 uw_check_heap(ctx, len);
adamc@180	2062
adamc@666	2063 s = ctx->heap.front;
adamc@180	2064
adamc@180	2065 strcpy(s, s1);
adamc@180	2066 strcat(s, s2);
adamc@666	2067 ctx->heap.front += len;
adamc@180	2068
adamc@180	2069 return s;
adamc@180	2070 }
adamc@278	2071
adamc@829	2072 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2073 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2074
adamc@829	2075 if (start < 0)
adamc@829	2076 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2077 if (len < 0)
adamc@829	2078 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2079 if (start + len > full_len)
adamc@829	2080 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2081
adamc@829	2082 if (start + len == full_len)
adamc@829	2083 return &s[start];
adamc@829	2084 else {
adamc@829	2085 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2086 memcpy(r, s+start, len);
adamc@829	2087 r[len] = 0;
adamc@829	2088 return r;
adamc@829	2089 }
adamc@829	2090
adamc@829	2091 }
adamc@829	2092
adamc@1023	2093 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2094 char *r;
adamc@1023	2095
adamc@1023	2096 uw_check_heap(ctx, 2);
adamc@1023	2097 r = ctx->heap.front;
adamc@1023	2098 r[0] = ch;
adamc@1023	2099 r[1] = 0;
adamc@1023	2100
adamc@1023	2101 ctx->heap.front += 2;
adamc@1023	2102
adamc@1023	2103 return r;
adamc@1023	2104 }
adamc@1023	2105
adamc@737	2106 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2107 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2108 char *s;
adamc@278	2109
adamc@311	2110 uw_check_heap(ctx, len);
adamc@278	2111
adamc@666	2112 s = ctx->heap.front;
adamc@278	2113
adamc@278	2114 strcpy(s, s1);
adamc@666	2115 ctx->heap.front += len;
adamc@278	2116
adamc@278	2117 return s;
adamc@278	2118 }
adamc@280	2119
adamc@737	2120 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2121 if (s1)
adamc@737	2122 return uw_strdup(ctx, s1);
adamc@493	2123 else
adamc@493	2124 return NULL;
adamc@493	2125 }
adamc@493	2126
adamc@742	2127 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2128 char *r = uw_malloc(ctx, len);
adamc@742	2129 memcpy(r, p, len);
adamc@742	2130 return r;
adamc@742	2131 }
adamc@280	2132
adamc@879	2133 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2134
adamc@311	2135 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2136 int len;
adamc@281	2137 char *r;
adamc@281	2138
adamc@311	2139 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2140 r = ctx->heap.front;
adamc@879	2141 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2142 ctx->heap.front += len+1;
adamc@281	2143 return r;
adamc@281	2144 }
adamc@281	2145
adamc@467	2146 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2147 if (n == NULL)
adamc@467	2148 return "NULL";
adamc@467	2149 else
adamc@467	2150 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2151 }
adamc@467	2152
adamc@879	2153 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879	2154
adamc@311	2155 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2156 int len;
adamc@281	2157 char *r;
adamc@281	2158
adamc@311	2159 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2160 r = ctx->heap.front;
adamc@879	2161 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2162 ctx->heap.front += len+1;
adamc@281	2163 return r;
adamc@281	2164 }
adamc@281	2165
adamc@467	2166 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2167 if (n == NULL)
adamc@467	2168 return "NULL";
adamc@467	2169 else
adamc@467	2170 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2171 }
adamc@467	2172
adamc@879	2173 int uw_Estrings = 1;
adamc@879	2174 char *uw_sqlsuffixString = "::text";
adamc@1011	2175 char *uw_sqlsuffixChar = "::char";
adamc@281	2176
adamc@311	2177 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2178 char r, s2;
adamc@280	2179
adamc@879	2180 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2181
adamc@666	2182 r = s2 = ctx->heap.front;
adamc@879	2183 if (uw_Estrings)
adamc@879	2184 *s2++ = 'E';
adamc@280	2185 *s2++ = '\'';
adamc@280	2186
adamc@280	2187 for (; *s; s++) {
adamc@280	2188 char c = *s;
adamc@280	2189
adamc@280	2190 switch (c) {
adamc@280	2191 case '\'':
adamc@885	2192 if (uw_Estrings)
adamc@885	2193 strcpy(s2, "\\'");
adamc@885	2194 else
adamc@885	2195 strcpy(s2, "''");
adamc@280	2196 s2 += 2;
adamc@280	2197 break;
adamc@280	2198 case '\\':
adamc@885	2199 if (uw_Estrings) {
adamc@885	2200 strcpy(s2, "\\\\");
adamc@885	2201 s2 += 2;
adamc@885	2202 } else
adamc@885	2203 *s2++ = '\\';
adamc@280	2204 break;
adamc@280	2205 default:
adamc@280	2206 if (isprint(c))
adamc@280	2207 *s2++ = c;
adamc@879	2208 else if (uw_Estrings) {
adamc@737	2209 sprintf(s2, "\\%03o", c);
adamc@280	2210 s2 += 4;
adamc@280	2211 }
adamc@879	2212 else
adamc@879	2213 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280	2214 }
adamc@280	2215 }
adamc@280	2216
adamc@879	2217 *s2++ = '\'';
adamc@879	2218 strcpy(s2, uw_sqlsuffixString);
adamc@879	2219 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2220 return r;
adamc@280	2221 }
adamc@281	2222
adamc@1011	2223 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2224 char r, s2;
adamc@1011	2225
adamc@1011	2226 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2227
adamc@1011	2228 r = s2 = ctx->heap.front;
adamc@1011	2229 if (uw_Estrings)
adamc@1011	2230 *s2++ = 'E';
adamc@1011	2231 *s2++ = '\'';
adamc@1011	2232
adamc@1011	2233 switch (c) {
adamc@1011	2234 case '\'':
adamc@1011	2235 if (uw_Estrings)
adamc@1011	2236 strcpy(s2, "\\'");
adamc@1011	2237 else
adamc@1011	2238 strcpy(s2, "''");
adamc@1011	2239 s2 += 2;
adamc@1011	2240 break;
adamc@1011	2241 case '\\':
adamc@1011	2242 if (uw_Estrings) {
adamc@1011	2243 strcpy(s2, "\\\\");
adamc@1011	2244 s2 += 2;
adamc@1011	2245 } else
adamc@1011	2246 *s2++ = '\\';
adamc@1011	2247 break;
adamc@1011	2248 default:
adamc@1011	2249 if (isprint(c))
adamc@1011	2250 *s2++ = c;
adamc@1011	2251 else if (uw_Estrings) {
adamc@1011	2252 sprintf(s2, "\\%03o", c);
adamc@1011	2253 s2 += 4;
adamc@1011	2254 }
adamc@1011	2255 else
adamc@1011	2256 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2257 }
adamc@1011	2258
adamc@1011	2259 *s2++ = '\'';
adamc@1011	2260 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2261 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2262 return r;
adamc@1011	2263 }
adamc@1011	2264
adamc@879	2265 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2266
adamc@737	2267 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2268 char r, s2;
adamc@737	2269 size_t i;
adamc@737	2270
adamc@879	2271 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737	2272
adamc@737	2273 r = s2 = ctx->heap.front;
adamc@879	2274 if (uw_Estrings)
adamc@879	2275 *s2++ = 'E';
adamc@737	2276 *s2++ = '\'';
adamc@737	2277
adamc@737	2278 for (i = 0; i < b.size; ++i) {
adamc@737	2279 char c = b.data[i];
adamc@737	2280
adamc@737	2281 switch (c) {
adamc@737	2282 case '\'':
adamc@885	2283 if (uw_Estrings)
adamc@885	2284 strcpy(s2, "\\'");
adamc@885	2285 else
adamc@885	2286 strcpy(s2, "''");
adamc@737	2287 s2 += 2;
adamc@737	2288 break;
adamc@737	2289 case '\\':
adamc@885	2290 if (uw_Estrings) {
adamc@885	2291 strcpy(s2, "\\\\\\\\");
adamc@885	2292 s2 += 4;
adamc@885	2293 } else
adamc@885	2294 *s2++ = '\\';
adamc@737	2295 break;
adamc@737	2296 default:
adamc@737	2297 if (isprint(c))
adamc@737	2298 *s2++ = c;
adamc@879	2299 else if (uw_Estrings) {
adamc@737	2300 sprintf(s2, "\\\\%03o", c);
adamc@737	2301 s2 += 5;
adamc@737	2302 }
adamc@879	2303 else
adamc@879	2304 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737	2305 }
adamc@737	2306 }
adamc@737	2307
adamc@879	2308 *s2++ = '\'';
adamc@879	2309 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2310 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2311 return r;
adamc@737	2312 }
adamc@737	2313
adamc@682	2314 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2315 int len;
adamc@682	2316 char *r;
adamc@682	2317 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2318
adamc@682	2319 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2320 r = ctx->heap.front;
adamc@879	2321 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2322 ctx->heap.front += len+1;
adamc@682	2323 return r;
adamc@682	2324 }
adamc@682	2325
adamc@682	2326 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2327 int len;
adamc@682	2328 char *r;
adamc@682	2329 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2330
adamc@682	2331 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2332 r = ctx->heap.front;
adamc@682	2333 sprintf(r, "%lld%n", combo, &len);
adamc@682	2334 ctx->heap.front += len+1;
adamc@682	2335 return r;
adamc@682	2336 }
adamc@682	2337
adamc@879	2338 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2339
adamc@682	2340 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2341 int len;
adamc@682	2342 char *r;
adamc@682	2343
adamc@682	2344 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2345 r = ctx->heap.front;
adamc@879	2346 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2347 ctx->heap.front += len+1;
adamc@682	2348 return r;
adamc@682	2349 }
adamc@682	2350
adamc@682	2351 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2352 int len;
adamc@682	2353 char *r;
adamc@682	2354
adamc@682	2355 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2356 r = ctx->heap.front;
adamc@682	2357 sprintf(r, "%u%n", cli, &len);
adamc@682	2358 ctx->heap.front += len+1;
adamc@682	2359 return r;
adamc@682	2360 }
adamc@682	2361
adamc@467	2362 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2363 if (s == NULL)
adamc@467	2364 return "NULL";
adamc@467	2365 else
adamc@467	2366 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2367 }
adamc@467	2368
adamc@311	2369 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2370 if (b == uw_Basis_False)
adamc@281	2371 return "FALSE";
adamc@281	2372 else
adamc@281	2373 return "TRUE";
adamc@281	2374 }
adamc@282	2375
adamc@467	2376 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2377 if (b == NULL)
adamc@467	2378 return "NULL";
adamc@467	2379 else
adamc@467	2380 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2381 }
adamc@467	2382
adamc@439	2383 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2384 size_t len;
adamc@682	2385 char r, s;
adamc@682	2386 struct tm stm;
adamc@682	2387
adamc@682	2388 if (localtime_r(&t, &stm)) {
adamc@682	2389 s = uw_malloc(ctx, TIMES_MAX);
adamc@995	2390 --stm.tm_hour;
adamc@682	2391 len = strftime(s, TIMES_MAX, TIME_FMT, &stm);
adamc@682	2392 r = uw_malloc(ctx, len + 14);
adamc@682	2393 sprintf(r, "'%s'::timestamp", s);
adamc@682	2394 return r;
adamc@682	2395 } else
adamc@682	2396 return "<Invalid time>";
adamc@682	2397 }
adamc@682	2398
adamc@682	2399 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2400 size_t len;
adamc@439	2401 char *r;
adamc@439	2402 struct tm stm;
adamc@439	2403
adamc@439	2404 if (localtime_r(&t, &stm)) {
adamc@439	2405 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2406 r = ctx->heap.front;
adamc@439	2407 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2408 ctx->heap.front += len+1;
adamc@439	2409 return r;
adamc@439	2410 } else
adamc@439	2411 return "<Invalid time>";
adamc@439	2412 }
adamc@439	2413
adamc@467	2414 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2415 if (t == NULL)
adamc@467	2416 return "NULL";
adamc@467	2417 else
adamc@467	2418 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2419 }
adamc@467	2420
adamc@311	2421 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2422 static uw_Basis_int true = 1;
adamc@311	2423 static uw_Basis_int false = 0;
adamc@282	2424
adamc@311	2425 if (b == uw_Basis_False)
adamc@282	2426 return (char *)&false;
adamc@282	2427 else
adamc@282	2428 return (char *)&true;
adamc@282	2429 }
adamc@284	2430
adamc@311	2431 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2432 int len;
adamc@284	2433 char *r;
adamc@284	2434
adamc@311	2435 uw_check_heap(ctx, INTS_MAX);
adamc@666	2436 r = ctx->heap.front;
adamc@284	2437 sprintf(r, "%lld%n", n, &len);
adamc@666	2438 ctx->heap.front += len+1;
adamc@284	2439 return r;
adamc@284	2440 }
adamc@285	2441
adamc@311	2442 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2443 int len;
adamc@285	2444 char *r;
adamc@285	2445
adamc@311	2446 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2447 r = ctx->heap.front;
adamc@285	2448 sprintf(r, "%g%n", n, &len);
adamc@666	2449 ctx->heap.front += len+1;
adamc@285	2450 return r;
adamc@285	2451 }
adamc@285	2452
adamc@821	2453 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2454 char *r = uw_malloc(ctx, 2);
adamc@821	2455 r[0] = ch;
adamc@821	2456 r[1] = 0;
adamc@821	2457 return r;
adamc@821	2458 }
adamc@821	2459
adamc@311	2460 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2461 if (b == uw_Basis_False)
adamc@285	2462 return "False";
adamc@285	2463 else
adamc@285	2464 return "True";
adamc@285	2465 }
adamc@288	2466
adamc@436	2467 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436	2468 size_t len;
adamc@436	2469 char *r;
adamc@436	2470 struct tm stm;
adamc@436	2471
adamc@436	2472 if (localtime_r(&t, &stm)) {
adamc@436	2473 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2474 r = ctx->heap.front;
adamc@436	2475 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2476 ctx->heap.front += len+1;
adamc@436	2477 return r;
adamc@436	2478 } else
adamc@436	2479 return "<Invalid time>";
adamc@436	2480 }
adamc@288	2481
adamc@311	2482 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2483 char *endptr;
adamc@311	2484 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2485
adamc@288	2486 if (s != '\0' && endptr == '\0') {
adamc@311	2487 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2488 *r = n;
adamc@288	2489 return r;
adamc@288	2490 } else
adamc@288	2491 return NULL;
adamc@288	2492 }
adamc@289	2493
adamc@311	2494 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2495 char *endptr;
adamc@311	2496 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2497
adamc@289	2498 if (s != '\0' && endptr == '\0') {
adamc@311	2499 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2500 *r = n;
adamc@289	2501 return r;
adamc@289	2502 } else
adamc@289	2503 return NULL;
adamc@289	2504 }
adamc@289	2505
adamc@821	2506 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2507 if (s[0] == 0) {
adamc@821	2508 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2509 r[0] = 0;
adamc@821	2510 return r;
adamc@821	2511 } else if (s[1] != 0)
adamc@821	2512 return NULL;
adamc@821	2513 else {
adamc@821	2514 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2515 r[0] = s[0];
adamc@821	2516 return r;
adamc@821	2517 }
adamc@821	2518 }
adamc@821	2519
adamc@311	2520 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2521 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2522 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2523
adamc@289	2524 if (!strcasecmp (s, "True"))
adamc@289	2525 return &true;
adamc@289	2526 else if (!strcasecmp (s, "False"))
adamc@289	2527 return &false;
adamc@289	2528 else
adamc@289	2529 return NULL;
adamc@289	2530 }
adamc@292	2531
adamc@436	2532 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2533 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2534 struct tm stm;
adamc@436	2535
adamc@439	2536 if (dot) {
adamc@439	2537 *dot = 0;
adamc@439	2538 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2539 *dot = '.';
adamc@439	2540 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2541 *r = mktime(&stm);
adamc@439	2542 return r;
adamc@439	2543 }
adamc@439	2544 else {
adamc@439	2545 *dot = '.';
adamc@439	2546 return NULL;
adamc@439	2547 }
adamc@436	2548 }
adamc@439	2549 else {
adamc@439	2550 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2551 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2552 *r = mktime(&stm);
adamc@439	2553 return r;
adamc@439	2554 }
adamc@439	2555 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2556 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2557 *r = mktime(&stm);
adamc@439	2558 return r;
adamc@439	2559 }
adamc@439	2560 else
adamc@439	2561 return NULL;
adamc@439	2562 }
adamc@436	2563 }
adamc@436	2564
adamc@311	2565 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2566 char *endptr;
adamc@311	2567 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2568
adamc@292	2569 if (s != '\0' && endptr == '\0')
adamc@292	2570 return n;
adamc@292	2571 else
adamc@311	2572 uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292	2573 }
adamc@293	2574
adamc@682	2575 #include <errno.h>
adamc@682	2576
adamc@678	2577 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2578 unsigned long long n;
adamc@682	2579
adamc@682	2580 if (sscanf(s, "%llu", &n) < 1)
adamc@682	2581 uw_error(ctx, FATAL, "Can't parse channel: %s", s);
adamc@682	2582 else {
adamc@682	2583 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2584 return ch;
adamc@682	2585 }
adamc@682	2586 }
adamc@682	2587
adamc@682	2588 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2589 char *endptr;
adamc@682	2590 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2591
adamc@678	2592 if (s != '\0' && endptr == '\0')
adamc@678	2593 return n;
adamc@678	2594 else
adamc@682	2595 uw_error(ctx, FATAL, "Can't parse client: %s", s);
adamc@678	2596 }
adamc@678	2597
adamc@311	2598 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2599 char *endptr;
adamc@311	2600 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2601
adamc@293	2602 if (s != '\0' && endptr == '\0')
adamc@293	2603 return n;
adamc@293	2604 else
adamc@311	2605 uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293	2606 }
adamc@293	2607
adamc@821	2608 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2609 if (s[0] == 0)
adamc@821	2610 return 0;
adamc@821	2611 else if (s[1] != 0)
adamc@821	2612 uw_error(ctx, FATAL, "Can't parse char: %s", s);
adamc@821	2613 else
adamc@821	2614 return s[0];
adamc@821	2615 }
adamc@821	2616
adamc@311	2617 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2618 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2619 return uw_Basis_True;
adamc@296	2620 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2621 return uw_Basis_False;
adamc@293	2622 else
adamc@311	2623 uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293	2624 }
adamc@436	2625
adamc@436	2626 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2627 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2628 struct tm stm = {};
adamc@436	2629
adamc@438	2630 if (dot) {
adamc@438	2631 *dot = 0;
adamc@438	2632 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2633 *dot = '.';
adamc@438	2634 return mktime(&stm);
adamc@438	2635 }
adamc@438	2636 else {
adamc@438	2637 *dot = '.';
adamc@438	2638 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2639 }
adamc@438	2640 }
adamc@438	2641 else {
adamc@439	2642 if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439	2643 return mktime(&stm);
adamc@439	2644 else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438	2645 return mktime(&stm);
adamc@438	2646 else
adamc@438	2647 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2648 }
adamc@436	2649 }
adamc@457	2650
adamc@939	2651 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adamc@939	2652 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@939	2653 struct tm stm = {};
adamc@939	2654
adamc@939	2655 if (dot) {
adamc@939	2656 *dot = 0;
adamc@939	2657 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@939	2658 *dot = '.';
adamc@939	2659 return mktime(&stm);
adamc@939	2660 }
adamc@939	2661 else {
adamc@939	2662 *dot = '.';
adamc@939	2663 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2664 }
adamc@939	2665 }
adamc@939	2666 else {
adamc@939	2667 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@939	2668 return mktime(&stm);
adamc@939	2669 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@939	2670 return mktime(&stm);
adamc@939	2671 } else
adamc@939	2672 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2673 }
adamc@939	2674 }
adamc@939	2675
adamc@742	2676 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	2677 char *r = ctx->heap.front;
adamc@742	2678 uw_Basis_blob b = {len, r};
adamc@742	2679
adamc@742	2680 uw_check_heap(ctx, len);
adamc@742	2681
adamc@742	2682 while (*s) {
adamc@742	2683 if (s[0] == '\\') {
adamc@742	2684 if (s[1] == '\\') {
adamc@742	2685 *r++ = '\\';
adamc@742	2686 s += 2;
adamc@742	2687 } else if (isdigit(s[1]) && isdigit(s[2]) && isdigit(s[3])) {
adamc@742	2688 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	2689 s += 4;
adamc@742	2690 }
adamc@742	2691 else {
adamc@742	2692 *r++ = '\\';
adamc@742	2693 ++s;
adamc@742	2694 }
adamc@742	2695 } else {
adamc@742	2696 *r++ = s[0];
adamc@742	2697 ++s;
adamc@742	2698 }
adamc@742	2699 }
adamc@742	2700
adamc@742	2701 b.size = r - ctx->heap.front;
adamc@742	2702 ctx->heap.front = r;
adamc@742	2703 return b;
adamc@742	2704 }
adamc@742	2705
adamc@1052	2706 #define THE_PAST "expires=Mon, 01-01-1970 00:00:00 GMT"
adamc@1052	2707
adamc@463	2708 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	2709 int len = strlen(c);
adamc@854	2710 char *p = ctx->outHeaders.start;
adamc@474	2711
adamc@474	2712 while (p = strstr(p, "\nSet-Cookie: ")) {
adamc@474	2713 char *p2;
adamc@474	2714 p += 13;
adamc@474	2715 p2 = strchr(p, '=');
adamc@474	2716
adamc@474	2717 if (p2) {
adamc@474	2718 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	2719
adamc@474	2720 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	2721 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	2722 return NULL;
adamc@1052	2723 else {
adamc@1052	2724 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	2725 memcpy(ret, p2+1, sz);
adamc@1052	2726 ret[sz] = 0;
adamc@1052	2727 return ret;
adamc@1052	2728 }
adamc@474	2729 }
adamc@474	2730 }
adamc@474	2731 }
adamc@463	2732
adamc@854	2733 if (p = uw_Basis_requestHeader(ctx, "Cookie")) {
adamc@1051	2734 char *p2;
adamc@1051	2735
adamc@854	2736 while (1) {
adamc@1051	2737 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1051	2738 if (p2 = strchr(p, ';')) {
adamc@1051	2739 size_t n = p2 - (p + len);
adamc@1051	2740 char *r = uw_malloc(ctx, n);
adamc@1051	2741 memcpy(r, p + 1 + len, n-1);
adamc@1051	2742 r[n-1] = 0;
adamc@1051	2743 return r;
adamc@1051	2744 } else
adamc@1051	2745 return p + 1 + len;
adamc@1051	2746 } else if (p = strchr(p, ';'))
adamc@854	2747 p += 2;
adamc@463	2748 else
adamc@463	2749 return NULL;
adamc@463	2750 }
adamc@463	2751 }
adamc@792	2752
adamc@792	2753 return NULL;
adamc@457	2754 }
adamc@462	2755
adamc@1050	2756 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	2757 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	2758 uw_write_header(ctx, c);
adamc@462	2759 uw_write_header(ctx, "=");
adamc@462	2760 uw_write_header(ctx, v);
adamc@466	2761 uw_write_header(ctx, "; path=");
adamc@466	2762 uw_write_header(ctx, prefix);
adamc@1050	2763 if (expires) {
adamc@1050	2764 char formatted[30];
adamc@1050	2765 struct tm tm;
adamc@1050	2766
adamc@1050	2767 gmtime_r(expires, &tm);
adamc@1050	2768
adamc@1050	2769 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	2770
adamc@1050	2771 uw_write_header(ctx, "; expires=");
adamc@1050	2772 uw_write_header(ctx, formatted);
adamc@1050	2773 }
adamc@1050	2774 if (secure)
adamc@1050	2775 uw_write_header(ctx, "; secure");
adamc@462	2776 uw_write_header(ctx, "\r\n");
adamc@462	2777
adamc@462	2778 return uw_unit_v;
adamc@462	2779 }
adamc@667	2780
adamc@1050	2781 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	2782 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	2783 uw_write_header(ctx, c);
adamc@1050	2784 uw_write_header(ctx, "=; path=");
adamc@1050	2785 uw_write_header(ctx, prefix);
adamc@1052	2786 uw_write_header(ctx, "; " THE_PAST "\r\n");
adamc@1050	2787
adamc@1050	2788 return uw_unit_v;
adamc@1050	2789 }
adamc@1050	2790
adamc@682	2791 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	2792 unsigned i;
adamc@682	2793 delta *d;
adamc@671	2794
adamc@682	2795 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	2796 if (ctx->deltas[i].client == client)
adamc@682	2797 return &ctx->deltas[i];
adamc@671	2798
adamc@682	2799 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@682	2800 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adamc@682	2801 buf_init(&ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	2802 }
adamc@671	2803
adamc@682	2804 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	2805 d->client = client;
adamc@682	2806 buf_reset(&d->msgs);
adamc@682	2807 return d;
adamc@671	2808 }
adamc@671	2809
adamc@668	2810 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	2811 if (ctx->client == NULL)
adamc@682	2812 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	2813
adamc@682	2814 return new_channel(ctx->client);
adamc@668	2815 }
adamc@668	2816
adamc@668	2817 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	2818 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	2819 size_t len;
adamc@682	2820 int preLen;
adamc@682	2821 char pre[INTS_MAX + 2];
adamc@668	2822
adamc@682	2823 len = strlen(msg);
adamc@682	2824
adamc@682	2825 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	2826
adamc@682	2827 buf_append(&d->msgs, pre, preLen);
adamc@682	2828 buf_append(&d->msgs, msg, len);
adamc@682	2829 buf_append(&d->msgs, "\n", 1);
adamc@671	2830
adamc@671	2831 return uw_unit_v;
adamc@668	2832 }
adamc@671	2833
adamc@671	2834 int uw_db_commit(uw_context);
adamc@671	2835 int uw_db_rollback(uw_context);
adamc@671	2836
adamc@671	2837 void uw_commit(uw_context ctx) {
adamc@682	2838 unsigned i;
adamc@671	2839
adamc@771	2840 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2841 if (ctx->transactionals[i].rollback != NULL)
adamc@771	2842 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771	2843
adamc@771	2844 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2845 if (ctx->transactionals[i].rollback == NULL)
adamc@771	2846 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771	2847
adamc@771	2848 if (uw_db_commit(ctx))
adamc@671	2849 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@682	2850
adamc@682	2851 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	2852 delta *d = &ctx->deltas[i];
adamc@682	2853 client *c = find_client(d->client);
adamc@682	2854
adamc@682	2855 assert (c != NULL && c->mode == USED);
adamc@682	2856
adamc@685	2857 client_send(c, &d->msgs);
adamc@682	2858 }
adamc@682	2859
adamc@682	2860 if (ctx->client)
adamc@685	2861 release_client(ctx->client);
adamc@771	2862
adamc@771	2863 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2864 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@916	2865
adamc@916	2866 // Splice script data into appropriate part of page
adamc@995	2867 if (ctx->returning_blob \|\| ctx->script_header[0] == 0) {
adamc@995	2868 char *start = strstr(ctx->page.start, "<sc>");
adamc@995	2869 if (start) {
adamc@995	2870 memmove(start, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 4);
adamc@995	2871 ctx->page.front -= 4;
adamc@995	2872 }
adamc@995	2873 } else if (buf_used(&ctx->script) == 0) {
adamc@916	2874 size_t len = strlen(ctx->script_header);
adamc@916	2875 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2876 if (start) {
adamc@916	2877 buf_check(&ctx->page, buf_used(&ctx->page) - 4 + len);
adamc@917	2878 start = strstr(ctx->page.start, "<sc>");
adamc@916	2879 memmove(start + len, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2880 ctx->page.front += len - 4;
adamc@916	2881 memcpy(start, ctx->script_header, len);
adamc@916	2882 }
adamc@916	2883 } else {
adamc@916	2884 size_t lenH = strlen(ctx->script_header), len = buf_used(&ctx->script);
adamc@916	2885 size_t lenP = lenH + 40 + len;
adamc@916	2886 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2887 if (start) {
adamc@916	2888 buf_check(&ctx->page, buf_used(&ctx->page) - 4 + lenP);
adamc@917	2889 start = strstr(ctx->page.start, "<sc>");
adamc@916	2890 memmove(start + lenP, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2891 ctx->page.front += lenP - 4;
adamc@916	2892 memcpy(start, ctx->script_header, lenH);
adamc@916	2893 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916	2894 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916	2895 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916	2896 }
adamc@916	2897 }
adamc@671	2898 }
adamc@671	2899
adamc@671	2900 int uw_rollback(uw_context ctx) {
adamc@771	2901 size_t i;
adamc@885	2902 cleanup *cl;
adamc@771	2903
adamc@682	2904 if (ctx->client)
adamc@685	2905 release_client(ctx->client);
adamc@671	2906
adamc@885	2907 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@885	2908 cl->func(cl->arg);
adamc@885	2909
adamc@885	2910 ctx->cleanup_front = ctx->cleanup;
adamc@885	2911
adamc@771	2912 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2913 if (ctx->transactionals[i].rollback != NULL)
adamc@771	2914 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@771	2915
adamc@771	2916 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2917 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@771	2918
adamc@671	2919 return uw_db_rollback(ctx);
adamc@671	2920 }
adamc@683	2921
adamc@771	2922 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adamc@771	2923 uw_callback free) {
adamc@771	2924 if (commit == NULL)
adamc@771	2925 uw_error(ctx, FATAL, "uw_register_transactional: NULL commit callback");
adamc@771	2926
adamc@771	2927 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@771	2928 ctx->transactionals = realloc(ctx->transactionals, ctx->used_transactionals+1);
adamc@771	2929 ++ctx->n_transactionals;
adamc@771	2930 }
adamc@771	2931
adamc@771	2932 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	2933 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	2934 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	2935 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	2936 }
adamc@771	2937
adamc@683	2938
adamc@683	2939 // "Garbage collection"
adamc@683	2940
adamc@683	2941 void uw_expunger(uw_context ctx, uw_Basis_client cli);
adamc@683	2942
adamc@683	2943 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli) {
adamc@683	2944 int r = setjmp(ctx->jmp_buf);
adamc@683	2945
adamc@684	2946 if (r == 0) {
adamc@684	2947 if (uw_db_begin(ctx))
adamc@684	2948 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@683	2949 uw_expunger(ctx, cli);
adamc@684	2950 if (uw_db_commit(ctx))
adamc@684	2951 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@684	2952 }
adamc@683	2953
adamc@683	2954 return r;
adamc@683	2955 }
adamc@683	2956
adamc@683	2957 void uw_prune_clients(uw_context ctx) {
adamc@683	2958 client c, next, *prev = NULL;
adamc@683	2959 time_t cutoff;
adamc@683	2960
adamc@683	2961 cutoff = time(NULL) - uw_timeout;
adamc@683	2962
adamc@683	2963 pthread_mutex_lock(&clients_mutex);
adamc@683	2964
adamc@683	2965 for (c = clients_used; c; c = next) {
adamc@683	2966 next = c->next;
adamc@683	2967 pthread_mutex_lock(&c->lock);
adamc@685	2968 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	2969 failure_kind fk = UNLIMITED_RETRY;
adamc@683	2970 if (prev)
adamc@683	2971 prev->next = next;
adamc@683	2972 else
adamc@683	2973 clients_used = next;
adamc@684	2974 uw_reset(ctx);
adamc@683	2975 while (fk == UNLIMITED_RETRY) {
adamc@683	2976 fk = uw_expunge(ctx, c->id);
adamc@684	2977 if (fk == UNLIMITED_RETRY) {
adamc@684	2978 uw_db_rollback(ctx);
adamc@684	2979 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	2980 }
adamc@683	2981 }
adamc@684	2982 if (fk == SUCCESS)
adamc@684	2983 free_client(c);
adamc@684	2984 else {
adamc@684	2985 uw_db_rollback(ctx);
adamc@856	2986 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@684	2987 }
adamc@683	2988 }
adamc@683	2989 else
adamc@683	2990 prev = c;
adamc@683	2991 pthread_mutex_unlock(&c->lock);
adamc@683	2992 }
adamc@683	2993
adamc@683	2994 pthread_mutex_unlock(&clients_mutex);
adamc@683	2995 }
adamc@687	2996
adamc@687	2997 void uw_initializer(uw_context ctx);
adamc@687	2998
adamc@687	2999 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3000 int r = setjmp(ctx->jmp_buf);
adamc@687	3001
adamc@687	3002 if (r == 0) {
adamc@687	3003 if (uw_db_begin(ctx))
adamc@687	3004 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@687	3005 uw_initializer(ctx);
adamc@687	3006 if (uw_db_commit(ctx))
adamc@687	3007 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3008 }
adamc@687	3009
adamc@687	3010 return r;
adamc@687	3011 }
adamc@717	3012
adamc@770	3013 extern int uw_check_url(const char *);
adamc@770	3014 extern int uw_check_mime(const char *);
adamc@770	3015
adamc@717	3016 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@770	3017 if (uw_check_url(s))
adamc@770	3018 return s;
adamc@770	3019 else
adamc@770	3020 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3021 }
adamc@734	3022
adamc@770	3023 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@770	3024 if (uw_check_url(s))
adamc@770	3025 return s;
adamc@770	3026 else
adamc@770	3027 return NULL;
adamc@770	3028 }
adamc@770	3029
adamc@770	3030 int mime_format(const char *s) {
adamc@770	3031 for (; *s; ++s)
adamc@770	3032 if (!isalnum(s) && s != '/' && s != '-' && s != '.')
adamc@770	3033 return 0;
adamc@770	3034
adamc@770	3035 return 1;
adamc@770	3036 }
adamc@770	3037
adamc@741	3038 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3039 if (!mime_format(s))
adamc@770	3040 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3041
adamc@770	3042 if (uw_check_mime(s))
adamc@770	3043 return s;
adamc@770	3044 else
adamc@770	3045 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3046 }
adamc@770	3047
adamc@770	3048 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3049 if (!mime_format(s))
adamc@770	3050 return NULL;
adamc@770	3051
adamc@770	3052 if (uw_check_mime(s))
adamc@770	3053 return s;
adamc@770	3054 else
adamc@770	3055 return NULL;
adamc@741	3056 }
adamc@741	3057
adamc@734	3058 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3059 return s ? s : "";
adamc@734	3060 }
adamc@734	3061
adamc@734	3062 extern int uw_hash_blocksize;
adamc@734	3063
adamc@734	3064 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3065 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3066 int i;
adamc@734	3067
adamc@734	3068 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3069 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3070
adamc@734	3071 return r;
adamc@734	3072 }
adamc@734	3073
adamc@734	3074 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@734	3075 return uw_cookie_sig(ctx);
adamc@734	3076 }
adamc@737	3077
adamc@737	3078 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3079 return f.name;
adamc@737	3080 }
adamc@737	3081
adamc@740	3082 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3083 return f.type;
adamc@740	3084 }
adamc@740	3085
adamc@745	3086 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3087 return b.size;
adamc@745	3088 }
adamc@745	3089
adamc@737	3090 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3091 return f.data;
adamc@737	3092 }
adamc@741	3093
adamc@741	3094 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3095 cleanup *cl;
adamc@741	3096 int len;
adamc@741	3097
adamc@921	3098 ctx->returning_blob = 1;
adamc@741	3099 buf_reset(&ctx->outHeaders);
adamc@741	3100 buf_reset(&ctx->page);
adamc@741	3101
adamc@856	3102 uw_write_header(ctx, on_success);
adamc@856	3103 uw_write_header(ctx, "Content-Type: ");
adamc@741	3104 uw_write_header(ctx, mimeType);
adamc@741	3105 uw_write_header(ctx, "\r\nContent-Length: ");
adamc@741	3106 buf_check(&ctx->outHeaders, INTS_MAX);
adamc@741	3107 sprintf(ctx->outHeaders.front, "%d%n", b.size, &len);
adamc@741	3108 ctx->outHeaders.front += len;
adamc@741	3109 uw_write_header(ctx, "\r\n");
adamc@741	3110
adamc@741	3111 buf_append(&ctx->page, b.data, b.size);
adamc@741	3112
adamc@741	3113 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3114 cl->func(cl->arg);
adamc@741	3115
adamc@741	3116 ctx->cleanup_front = ctx->cleanup;
adamc@741	3117
adamc@741	3118 longjmp(ctx->jmp_buf, RETURN_BLOB);
adamc@741	3119 }
adamc@874	3120
adamc@874	3121 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adamc@874	3122 uw_Basis_string r = uw_malloc(ctx, strlen(s) + 1);
adamc@874	3123
adamc@874	3124 for (; *s; ++s) {
adamc@874	3125 if (s[0] == '\'') {
adamc@874	3126 *r++ = '\'';
adamc@874	3127 for (++s; *s; ++s) {
adamc@874	3128 if (s[0] == '\'') {
adamc@874	3129 *r++ = '\'';
adamc@874	3130 break;
adamc@874	3131 } else if (s[0] == '\\') {
adamc@874	3132 if (s[1] == '\\') {
adamc@874	3133 *r++ = '\\';
adamc@874	3134 *r++ = '\\';
adamc@874	3135 ++s;
adamc@874	3136 } else if (s[1] == '\'') {
adamc@874	3137 *r++ = '\\';
adamc@874	3138 *r++ = '\'';
adamc@874	3139 ++s;
adamc@874	3140 } else
adamc@874	3141 *r++ = '\'';
adamc@874	3142 } else
adamc@874	3143 *r++ = s[0];
adamc@874	3144 }
adamc@874	3145 if (*s == 0) break;
adamc@874	3146 } else if (s[0] == 'T' && s[1] == '.')
adamc@874	3147 ++s;
adamc@874	3148 else
adamc@874	3149 *r++ = s[0];
adamc@874	3150 }
adamc@874	3151
adamc@874	3152 return r;
adamc@874	3153 }
adamc@874	3154
adamc@922	3155 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3156 va_list ap;
adamc@922	3157 size_t len = 1;
adamc@922	3158 char s, r, *s2;
adamc@922	3159
adamc@922	3160 va_start(ap, ctx);
adamc@922	3161 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3162 len += strlen(s);
adamc@922	3163 va_end(ap);
adamc@922	3164
adamc@922	3165 r = uw_malloc(ctx, len);
adamc@922	3166 va_start(ap, ctx);
adamc@922	3167 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3168 while (*s)
adamc@922	3169 s2++ = s++;
adamc@922	3170 va_end(ap);
adamc@922	3171 *s2 = 0;
adamc@922	3172
adamc@922	3173 return r;
adamc@922	3174 }
adamc@1006	3175
adamc@1050	3176 const uw_Basis_time minTime = 0;
adamc@1050	3177
adamc@1006	3178 uw_Basis_time uw_Basis_now(uw_context ctx) {
adamc@1006	3179 return time(NULL);
adamc@1006	3180 }

Mercurial > urweb

annotate src/c/urweb.c @ 1056:c42bfbd75ca9