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

annotate src/c/urweb.c @ 860:a738002d5b4d

Serving Hello via FastCGI

author	Adam Chlipala <adamc@hcoop.net>
date	Sat, 27 Jun 2009 14:44:00 -0400
parents	86ec89baee01
children	305bc0a431de

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

Mercurial > urweb

annotate src/c/urweb.c @ 860:a738002d5b4d