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

annotate src/c/urweb.c @ 863:305bc0a431de

.msgs processing in FastCGI

author	Adam Chlipala <adamc@hcoop.net>
date	Sat, 27 Jun 2009 17:50:31 -0400
parents	a738002d5b4d
children	6304f5e8fbb4

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

Mercurial > urweb

annotate src/c/urweb.c @ 863:305bc0a431de