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

annotate src/c/urweb.c @ 856:86ec89baee01

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author	Adam Chlipala <adamc@hcoop.net>
date	Tue, 23 Jun 2009 17:59:23 -0400
parents	158d980889ac
children	a738002d5b4d

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

Mercurial > urweb

annotate src/c/urweb.c @ 856:86ec89baee01