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

annotate src/c/urweb.c @ 829:20fe00fd81da

Substring functions; fix a nasty MonoReduce pattern match substitution bug

author	Adam Chlipala <adamc@hcoop.net>
date	Sat, 30 May 2009 13:29:00 -0400
parents	14a6c0971d89
children	5e1a4b12c83a

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

Mercurial > urweb

annotate src/c/urweb.c @ 829:20fe00fd81da