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

annotate src/c/urweb.c @ 864:6304f5e8fbb4

FastCGI working with lighttpd

author	Adam Chlipala <adamc@hcoop.net>
date	Sat, 27 Jun 2009 19:07:28 -0400
parents	305bc0a431de
children	03e7f111fe99

rev	line source
adamc@741	1 #define _XOPEN_SOURCE 500
adamc@436	2
adamc@117	3 #include <stdlib.h>
adamc@102	4 #include <stdio.h>
adamc@117	5 #include <string.h>
adamc@457	6 #include <strings.h>
adamc@106	7 #include <ctype.h>
adamc@167	8 #include <setjmp.h>
adamc@167	9 #include <stdarg.h>
adamc@682	10 #include <assert.h>
adamc@741	11 #include <ctype.h>
adamc@102	12
adamc@667	13 #include <pthread.h>
adamc@667	14
adamc@102	15 #include "types.h"
adamc@102	16
adamc@311	17 uw_unit uw_unit_v = {};
adamc@102	18
adamc@667	19
adamc@667	20 // Socket extras
adamc@667	21
adamc@863	22 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667	23 while (len > 0) {
adamc@856	24 ssize_t n = send(sock, buf, len, 0);
adamc@856	25
adamc@856	26 if (n < 0)
adamc@856	27 return n;
adamc@856	28
adamc@856	29 buf += n;
adamc@856	30 len -= n;
adamc@856	31 }
adamc@856	32
adamc@856	33 return 0;
adamc@856	34 }
adamc@856	35
adamc@856	36 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856	37 while (len > 0) {
adamc@856	38 ssize_t n = write(fd, buf, len);
adamc@667	39
adamc@667	40 if (n < 0)
adamc@667	41 return n;
adamc@667	42
adamc@667	43 buf += n;
adamc@667	44 len -= n;
adamc@667	45 }
adamc@667	46
adamc@667	47 return 0;
adamc@667	48 }
adamc@667	49
adamc@667	50
adamc@667	51 // Buffers
adamc@667	52
adamc@667	53 typedef struct {
adamc@667	54 char start, front, *back;
adamc@667	55 } buf;
adamc@667	56
adamc@667	57 static void buf_init(buf *b, size_t s) {
adamc@667	58 b->front = b->start = malloc(s);
adamc@667	59 b->back = b->front + s;
adamc@667	60 }
adamc@667	61
adamc@667	62 static void buf_free(buf *b) {
adamc@667	63 free(b->start);
adamc@667	64 }
adamc@667	65
adamc@667	66 static void buf_reset(buf *b) {
adamc@667	67 b->front = b->start;
adamc@667	68 }
adamc@667	69
adamc@667	70 static void buf_check(buf *b, size_t extra) {
adamc@667	71 if (b->back - b->front < extra) {
adamc@667	72 size_t desired = b->front - b->start + extra, next;
adamc@667	73 char *new_heap;
adamc@667	74
adamc@667	75 next = b->back - b->start;
adamc@667	76 if (next == 0)
adamc@667	77 next = 1;
adamc@667	78 for (; next < desired; next *= 2);
adamc@667	79
adamc@667	80 new_heap = realloc(b->start, next);
adamc@667	81 b->front = new_heap + (b->front - b->start);
adamc@667	82 b->back = new_heap + next;
adamc@667	83 b->start = new_heap;
adamc@667	84 }
adamc@667	85 }
adamc@667	86
adamc@667	87 static size_t buf_used(buf *b) {
adamc@667	88 return b->front - b->start;
adamc@667	89 }
adamc@667	90
adamc@667	91 static size_t buf_avail(buf *b) {
adamc@667	92 return b->back - b->start;
adamc@667	93 }
adamc@667	94
adamc@668	95 static void buf_append(buf b, const char s, size_t len) {
adamc@672	96 buf_check(b, len+1);
adamc@668	97 memcpy(b->front, s, len);
adamc@668	98 b->front += len;
adamc@672	99 *b->front = 0;
adamc@668	100 }
adamc@667	101
adamc@668	102
adamc@672	103 // Persistent state types
adamc@667	104
adamc@667	105 typedef enum { UNUSED, USED } usage;
adamc@667	106
adamc@667	107 typedef struct client {
adamc@682	108 unsigned id;
adamc@667	109 usage mode;
adamc@682	110 int pass;
adamc@682	111 struct client *next;
adamc@689	112 pthread_mutex_t lock, pull_lock;
adamc@682	113 buf msgs;
adamc@682	114 int sock;
adamc@863	115 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	116 int (*close)(int fd);
adamc@682	117 time_t last_contact;
adamc@682	118 unsigned n_channels;
adamc@685	119 unsigned refcount;
adamc@667	120 } client;
adamc@667	121
adamc@672	122
adamc@672	123 // Persistent client state
adamc@672	124
adamc@682	125 static client *clients, clients_free, *clients_used;
adamc@682	126 static unsigned n_clients;
adamc@667	127
adamc@667	128 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@667	129
adamc@682	130 static client *new_client() {
adamc@667	131 client *c;
adamc@667	132
adamc@667	133 pthread_mutex_lock(&clients_mutex);
adamc@667	134
adamc@667	135 if (clients_free) {
adamc@667	136 c = clients_free;
adamc@682	137 clients_free = clients_free->next;
adamc@667	138 }
adamc@667	139 else {
adamc@667	140 ++n_clients;
adamc@667	141 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	142 c = malloc(sizeof(client));
adamc@667	143 c->id = n_clients-1;
adamc@682	144 pthread_mutex_init(&c->lock, NULL);
adamc@689	145 pthread_mutex_init(&c->pull_lock, NULL);
adamc@682	146 buf_init(&c->msgs, 0);
adamc@667	147 clients[n_clients-1] = c;
adamc@667	148 }
adamc@667	149
adamc@682	150 pthread_mutex_lock(&c->lock);
adamc@667	151 c->mode = USED;
adamc@682	152 c->pass = rand();
adamc@682	153 c->sock = -1;
adamc@682	154 c->last_contact = time(NULL);
adamc@682	155 buf_reset(&c->msgs);
adamc@682	156 c->n_channels = 0;
adamc@685	157 c->refcount = 0;
adamc@682	158 pthread_mutex_unlock(&c->lock);
adamc@682	159
adamc@682	160 c->next = clients_used;
adamc@682	161 clients_used = c;
adamc@667	162
adamc@667	163 pthread_mutex_unlock(&clients_mutex);
adamc@667	164
adamc@667	165 return c;
adamc@667	166 }
adamc@667	167
adamc@685	168 static void use_client(client *c) {
adamc@685	169 pthread_mutex_lock(&c->lock);
adamc@685	170 ++c->refcount;
adamc@685	171 pthread_mutex_unlock(&c->lock);
adamc@689	172 pthread_mutex_lock(&c->pull_lock);
adamc@685	173 }
adamc@685	174
adamc@685	175 static void release_client(client *c) {
adamc@689	176 pthread_mutex_unlock(&c->pull_lock);
adamc@685	177 pthread_mutex_lock(&c->lock);
adamc@685	178 --c->refcount;
adamc@685	179 pthread_mutex_unlock(&c->lock);
adamc@689	180
adamc@685	181 }
adamc@685	182
adamc@856	183 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adamc@667	184
adamc@682	185 static client *find_client(unsigned id) {
adamc@667	186 client *c;
adamc@667	187
adamc@667	188 pthread_mutex_lock(&clients_mutex);
adamc@667	189
adamc@667	190 if (id >= n_clients) {
adamc@667	191 pthread_mutex_unlock(&clients_mutex);
adamc@668	192 return NULL;
adamc@667	193 }
adamc@667	194
adamc@667	195 c = clients[id];
adamc@667	196
adamc@668	197 pthread_mutex_unlock(&clients_mutex);
adamc@668	198 return c;
adamc@668	199 }
adamc@668	200
adamc@856	201 static char *on_success = "HTTP/1.1 200 OK\r\n";
adamc@856	202
adamc@856	203 void uw_set_on_success(char *s) {
adamc@856	204 on_success = s;
adamc@856	205 }
adamc@856	206
adamc@863	207 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	208 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	209 int (*close)(int fd),
adamc@864	210 void *logger_data, uw_logger log_error) {
adamc@682	211 client *c = find_client(id);
adamc@668	212
adamc@668	213 if (c == NULL) {
adamc@667	214 close(sock);
adamc@864	215 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	216 return;
adamc@667	217 }
adamc@667	218
adamc@682	219 pthread_mutex_lock(&c->lock);
adamc@671	220
adamc@682	221 if (c->mode != USED) {
adamc@682	222 pthread_mutex_unlock(&c->lock);
adamc@667	223 close(sock);
adamc@864	224 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	225 return;
adamc@667	226 }
adamc@667	227
adamc@682	228 if (pass != c->pass) {
adamc@682	229 pthread_mutex_unlock(&c->lock);
adamc@682	230 close(sock);
adamc@864	231 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	232 return;
adamc@667	233 }
adamc@667	234
adamc@682	235 if (c->sock != -1) {
adamc@863	236 c->close(c->sock);
adamc@682	237 c->sock = -1;
adamc@682	238 }
adamc@667	239
adamc@682	240 c->last_contact = time(NULL);
adamc@682	241
adamc@682	242 if (buf_used(&c->msgs) > 0) {
adamc@863	243 send(sock, on_success, strlen(on_success));
adamc@863	244 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863	245 send(sock, c->msgs.start, buf_used(&c->msgs));
adamc@682	246 buf_reset(&c->msgs);
adamc@667	247 close(sock);
adamc@667	248 }
adamc@863	249 else {
adamc@682	250 c->sock = sock;
adamc@863	251 c->send = send;
adamc@863	252 c->close = close;
adamc@863	253 }
adamc@667	254
adamc@682	255 pthread_mutex_unlock(&c->lock);
adamc@667	256 }
adamc@667	257
adamc@682	258 static void free_client(client *c) {
adamc@682	259 c->mode = UNUSED;
adamc@682	260 c->pass = -1;
adamc@667	261
adamc@682	262 c->next = clients_free;
adamc@682	263 clients_free = c;
adamc@667	264 }
adamc@667	265
adamc@682	266 static uw_Basis_channel new_channel(client *c) {
adamc@682	267 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	268 return ch;
adamc@668	269 }
adamc@668	270
adamc@685	271 static void client_send(client c, buf msg) {
adamc@685	272 pthread_mutex_lock(&c->lock);
adamc@671	273
adamc@682	274 if (c->sock != -1) {
adamc@863	275 c->send(c->sock, on_success, strlen(on_success));
adamc@863	276 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863	277 c->send(c->sock, msg->start, buf_used(msg));
adamc@863	278 c->close(c->sock);
adamc@682	279 c->sock = -1;
adamc@682	280 } else
adamc@682	281 buf_append(&c->msgs, msg->start, buf_used(msg));
adamc@671	282
adamc@685	283 pthread_mutex_unlock(&c->lock);
adamc@668	284 }
adamc@668	285
adamc@668	286
adamc@668	287 // Global entry points
adamc@668	288
adamc@668	289 void uw_global_init() {
adamc@668	290 srand(time(NULL) ^ getpid());
adamc@668	291
adamc@668	292 clients = malloc(0);
adamc@668	293 }
adamc@668	294
adamc@668	295
adamc@667	296 // Single-request state
adamc@667	297
adamc@167	298 #define ERROR_BUF_LEN 1024
adamc@167	299
adamc@323	300 typedef struct regions {
adamc@323	301 struct regions *next;
adamc@323	302 } regions;
adamc@323	303
adamc@425	304 typedef struct {
adamc@425	305 void (func)(void);
adamc@425	306 void *arg;
adamc@425	307 } cleanup;
adamc@425	308
adamc@671	309 typedef struct {
adamc@682	310 unsigned client;
adamc@671	311 buf msgs;
adamc@682	312 } delta;
adamc@671	313
adamc@737	314 typedef enum {
adamc@759	315 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	316 } input_kind;
adamc@737	317
adamc@756	318 typedef struct input {
adamc@737	319 input_kind kind;
adamc@737	320 union {
adamc@737	321 char *normal;
adamc@739	322 uw_Basis_file file;
adamc@756	323 struct {
adamc@759	324 struct input fields, parent;
adamc@756	325 } subform;
adamc@759	326 struct {
adamc@759	327 struct input entries, parent;
adamc@759	328 } subforms;
adamc@759	329 struct {
adamc@759	330 struct input fields, next, *parent;
adamc@759	331 } entry;
adamc@737	332 } data;
adamc@737	333 } input;
adamc@737	334
adamc@771	335 typedef struct {
adamc@771	336 void *data;
adamc@771	337 uw_callback commit, rollback, free;
adamc@771	338 } transactional;
adamc@771	339
adamc@311	340 struct uw_context {
adamc@854	341 char (get_header)(void , const char );
adamc@854	342 void *get_header_data;
adamc@457	343
adamc@666	344 buf outHeaders, page, heap, script;
adamc@759	345 input inputs, subinputs, *cur_container;
adamc@756	346 size_t n_subinputs, used_subinputs;
adamc@167	347
adamc@565	348 int source_count;
adamc@562	349
adamc@272	350 void *db;
adamc@272	351
adamc@167	352 jmp_buf jmp_buf;
adamc@167	353
adamc@323	354 regions *regions;
adamc@323	355
adamc@425	356 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	357
adamc@667	358 const char script_header, url_prefix;
adamc@643	359
adamc@736	360 int needs_push, needs_sig;
adamc@693	361
adamc@682	362 size_t n_deltas, used_deltas;
adamc@682	363 delta *deltas;
adamc@671	364
adamc@673	365 int timeout;
adamc@673	366
adamc@682	367 client *client;
adamc@682	368
adamc@771	369 transactional *transactionals;
adamc@771	370 size_t n_transactionals, used_transactionals;
adamc@771	371
adamc@167	372 char error_message[ERROR_BUF_LEN];
adamc@117	373 };
adamc@117	374
adamc@683	375 extern int uw_inputs_len, uw_timeout;
adamc@144	376
adamc@687	377 uw_context uw_init() {
adamc@311	378 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	379
adamc@854	380 ctx->get_header = NULL;
adamc@854	381 ctx->get_header_data = NULL;
adamc@457	382
adamc@687	383 buf_init(&ctx->outHeaders, 0);
adamc@687	384 buf_init(&ctx->page, 0);
adamc@687	385 buf_init(&ctx->heap, 0);
adamc@698	386 buf_init(&ctx->script, 1);
adamc@667	387 ctx->script.start[0] = 0;
adamc@136	388
adamc@737	389 ctx->inputs = calloc(uw_inputs_len, sizeof(input));
adamc@759	390 ctx->cur_container = NULL;
adamc@756	391 ctx->subinputs = malloc(0);
adamc@756	392 ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	393
adamc@272	394 ctx->db = NULL;
adamc@272	395
adamc@323	396 ctx->regions = NULL;
adamc@323	397
adamc@425	398 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	399
adamc@643	400 ctx->script_header = "";
adamc@667	401 ctx->url_prefix = "/";
adamc@693	402 ctx->needs_push = 0;
adamc@736	403 ctx->needs_sig = 0;
adamc@643	404
adamc@167	405 ctx->error_message[0] = 0;
adamc@167	406
adamc@565	407 ctx->source_count = 0;
adamc@562	408
adamc@682	409 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	410 ctx->deltas = malloc(0);
adamc@671	411
adamc@673	412 ctx->timeout = uw_timeout;
adamc@673	413
adamc@700	414 ctx->client = NULL;
adamc@700	415
adamc@700	416 ctx->error_message[0] = 0;
adamc@700	417
adamc@771	418 ctx->transactionals = malloc(0);
adamc@771	419 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	420
adamc@117	421 return ctx;
adamc@106	422 }
adamc@106	423
adamc@311	424 void uw_set_db(uw_context ctx, void *db) {
adamc@272	425 ctx->db = db;
adamc@272	426 }
adamc@272	427
adamc@311	428 void *uw_get_db(uw_context ctx) {
adamc@272	429 return ctx->db;
adamc@272	430 }
adamc@272	431
adamc@311	432 void uw_free(uw_context ctx) {
adamc@671	433 size_t i;
adamc@671	434
adamc@666	435 buf_free(&ctx->outHeaders);
adamc@666	436 buf_free(&ctx->script);
adamc@666	437 buf_free(&ctx->page);
adamc@666	438 buf_free(&ctx->heap);
adamc@144	439 free(ctx->inputs);
adamc@756	440 free(ctx->subinputs);
adamc@425	441 free(ctx->cleanup);
adamc@771	442 free(ctx->transactionals);
adamc@671	443
adamc@682	444 for (i = 0; i < ctx->n_deltas; ++i)
adamc@671	445 buf_free(&ctx->deltas[i].msgs);
adamc@671	446
adamc@136	447 free(ctx);
adamc@136	448 }
adamc@136	449
adamc@562	450 void uw_reset_keep_error_message(uw_context ctx) {
adamc@756	451 size_t i;
adamc@756	452
adamc@666	453 buf_reset(&ctx->outHeaders);
adamc@666	454 buf_reset(&ctx->script);
adamc@667	455 ctx->script.start[0] = 0;
adamc@666	456 buf_reset(&ctx->page);
adamc@666	457 buf_reset(&ctx->heap);
adamc@323	458 ctx->regions = NULL;
adamc@425	459 ctx->cleanup_front = ctx->cleanup;
adamc@565	460 ctx->source_count = 0;
adamc@682	461 ctx->used_deltas = 0;
adamc@682	462 ctx->client = NULL;
adamc@759	463 ctx->cur_container = NULL;
adamc@771	464 ctx->used_transactionals = 0;
adamc@167	465 }
adamc@167	466
adamc@562	467 void uw_reset_keep_request(uw_context ctx) {
adamc@562	468 uw_reset_keep_error_message(ctx);
adamc@562	469 ctx->error_message[0] = 0;
adamc@167	470 }
adamc@167	471
adamc@311	472 void uw_reset(uw_context ctx) {
adamc@311	473 uw_reset_keep_request(ctx);
adamc@737	474 memset(ctx->inputs, 0, uw_inputs_len * sizeof(input));
adamc@756	475 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adamc@756	476 ctx->used_subinputs = 0;
adamc@144	477 }
adamc@144	478
adamc@311	479 void uw_db_init(uw_context);
adamc@311	480 void uw_handle(uw_context, char *);
adamc@167	481
adamc@311	482 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	483 int r = setjmp(ctx->jmp_buf);
adamc@272	484
adamc@272	485 if (r == 0)
adamc@311	486 uw_db_init(ctx);
adamc@272	487
adamc@272	488 return r;
adamc@272	489 }
adamc@272	490
adamc@854	491 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	492 ctx->get_header = get_header;
adamc@854	493 ctx->get_header_data = get_header_data;
adamc@742	494 }
adamc@742	495
adamc@671	496 int uw_db_begin(uw_context);
adamc@167	497
adamc@801	498 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	499 va_list ap;
adamc@801	500 va_start(ap, fmt);
adamc@801	501
adamc@801	502 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	503 }
adamc@801	504
adamc@311	505 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	506 cleanup *cl;
adamc@425	507
adamc@167	508 va_list ap;
adamc@167	509 va_start(ap, fmt);
adamc@167	510
adamc@167	511 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	512
adamc@425	513 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	514 cl->func(cl->arg);
adamc@425	515
adamc@425	516 ctx->cleanup_front = ctx->cleanup;
adamc@425	517
adamc@190	518 longjmp(ctx->jmp_buf, fk);
adamc@167	519 }
adamc@167	520
adamc@425	521 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	522 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	523 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	524 if (len == 0)
adamc@425	525 newLen = 1;
adamc@425	526 else
adamc@428	527 newLen = len * 2;
adamc@470	528 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	529 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	530 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	531 }
adamc@425	532
adamc@425	533 ctx->cleanup_front->func = func;
adamc@425	534 ctx->cleanup_front->arg = arg;
adamc@425	535 ++ctx->cleanup_front;
adamc@425	536 }
adamc@425	537
adamc@682	538 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adamc@854	539 return ctx->get_header(ctx->get_header_data, h);
adamc@682	540 }
adamc@682	541
adamc@682	542 void uw_login(uw_context ctx) {
adamc@693	543 if (ctx->needs_push) {
adamc@682	544 char id_s, pass_s;
adamc@682	545
adamc@682	546 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682	547 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682	548 unsigned id = atoi(id_s);
adamc@682	549 int pass = atoi(pass_s);
adamc@682	550 client *c = find_client(id);
adamc@682	551
adamc@682	552 if (c == NULL)
adamc@682	553 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", id_s, pass_s);
adamc@682	554 else {
adamc@685	555 use_client(c);
adamc@682	556 ctx->client = c;
adamc@682	557
adamc@682	558 if (c->mode != USED)
adamc@682	559 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682	560 if (c->pass != pass)
adamc@682	561 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682	562 }
adamc@682	563 } else {
adamc@682	564 client *c = new_client();
adamc@685	565 use_client(c);
adamc@682	566 ctx->client = c;
adamc@864	567 }
adamc@682	568 }
adamc@682	569 }
adamc@682	570
adamc@671	571 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	572 int r = setjmp(ctx->jmp_buf);
adamc@671	573
adamc@671	574 if (r == 0) {
adamc@671	575 if (uw_db_begin(ctx))
adamc@671	576 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adamc@682	577
adamc@671	578 uw_handle(ctx, path);
adamc@671	579 }
adamc@671	580
adamc@671	581 return r;
adamc@671	582 }
adamc@671	583
adamc@772	584 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	585 if (ctx->client == NULL)
adamc@682	586 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	587
adamc@682	588 return ctx->client->id;
adamc@682	589 }
adamc@682	590
adamc@425	591 void uw_pop_cleanup(uw_context ctx) {
adamc@425	592 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	593 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	594
adamc@425	595 --ctx->cleanup_front;
adamc@425	596 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	597 }
adamc@425	598
adamc@311	599 char *uw_error_message(uw_context ctx) {
adamc@167	600 return ctx->error_message;
adamc@167	601 }
adamc@167	602
adamc@737	603 extern int uw_input_num(const char*);
adamc@144	604
adamc@759	605 static input *INP(uw_context ctx) {
adamc@759	606 if (ctx->cur_container == NULL)
adamc@759	607 return ctx->inputs;
adamc@759	608 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	609 return ctx->cur_container->data.subform.fields;
adamc@759	610 else if (ctx->cur_container->kind == ENTRY)
adamc@759	611 return ctx->cur_container->data.entry.fields;
adamc@759	612 else
adamc@760	613 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	614 }
adamc@759	615
adamc@760	616 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	617 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	618 *ptr += new_start - old_start;
adamc@760	619 }
adamc@760	620
adamc@760	621 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	622 switch (x->kind) {
adamc@759	623 case SUBFORM:
adamc@760	624 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	625 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	626 break;
adamc@759	627 case SUBFORMS:
adamc@760	628 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	629 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	630 break;
adamc@759	631 case ENTRY:
adamc@760	632 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	633 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	634 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@759	635 }
adamc@759	636 }
adamc@759	637
adamc@759	638 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	639 size_t i;
adamc@759	640 input *r;
adamc@759	641
adamc@759	642 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@759	643 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	644 size_t offset = new_subinputs - ctx->subinputs;
adamc@759	645
adamc@760	646 if (ctx->subinputs != new_subinputs) {
adamc@760	647 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	648 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	649 for (i = 0; i < uw_inputs_len; ++i)
adamc@760	650 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	651
adamc@760	652 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	653
adamc@760	654 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	655 ctx->subinputs = new_subinputs;
adamc@760	656 }
adamc@759	657 }
adamc@759	658
adamc@759	659 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	660
adamc@759	661 for (i = 0; i < len; ++i)
adamc@759	662 ctx->subinputs[ctx->used_subinputs++].kind = UNUSED;
adamc@759	663
adamc@759	664 return r;
adamc@759	665 }
adamc@756	666
adamc@801	667 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@756	668 if (!strcasecmp(name, ".b")) {
adamc@756	669 int n = uw_input_num(value);
adamc@756	670 input *inps;
adamc@756	671
adamc@801	672 if (n < 0) {
adamc@801	673 uw_set_error(ctx, "Bad subform name %s", value);
adamc@801	674 return -1;
adamc@801	675 }
adamc@801	676
adamc@801	677 if (n >= uw_inputs_len) {
adamc@801	678 uw_set_error(ctx, "For subform name %s, index %d is out of range", value, n);
adamc@801	679 return -1;
adamc@801	680 }
adamc@756	681
adamc@759	682 inps = check_input_space(ctx, uw_inputs_len);
adamc@759	683
adamc@759	684 INP(ctx)[n].kind = SUBFORM;
adamc@759	685 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	686 INP(ctx)[n].data.subform.fields = inps;
adamc@759	687 ctx->cur_container = &INP(ctx)[n];
adamc@756	688 } else if (!strcasecmp(name, ".e")) {
adamc@756	689 input *tmp;
adamc@756	690
adamc@801	691 if (ctx->cur_container == NULL) {
adamc@801	692 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	693 return -1;
adamc@801	694 }
adamc@756	695
adamc@759	696 tmp = ctx->cur_container;
adamc@759	697 switch (tmp->kind) {
adamc@759	698 case SUBFORM:
adamc@759	699 ctx->cur_container = tmp->data.subform.parent;
adamc@759	700 tmp->data.subform.parent = NULL;
adamc@759	701 break;
adamc@759	702 case SUBFORMS:
adamc@759	703 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	704 tmp->data.subforms.parent = NULL;
adamc@759	705 break;
adamc@759	706 case ENTRY:
adamc@759	707 ctx->cur_container = tmp->data.entry.parent;
adamc@759	708 break;
adamc@759	709 default:
adamc@801	710 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	711 return -1;
adamc@759	712 }
adamc@759	713 } else if (!strcasecmp(name, ".s")) {
adamc@759	714 int n = uw_input_num(value);
adamc@759	715
adamc@801	716 if (n < 0) {
adamc@801	717 uw_set_error(ctx, "Bad subforms name %s", value);
adamc@801	718 return -1;
adamc@801	719 }
adamc@801	720
adamc@801	721 if (n >= uw_inputs_len) {
adamc@801	722 uw_set_error(ctx, "For subforms name %s, index %d is out of range", value, n);
adamc@801	723 return -1;
adamc@801	724 }
adamc@759	725
adamc@759	726 INP(ctx)[n].kind = SUBFORMS;
adamc@759	727 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	728 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	729 ctx->cur_container = &INP(ctx)[n];
adamc@759	730 } else if (!strcasecmp(name, ".i")) {
adamc@759	731 input *inps;
adamc@759	732
adamc@801	733 if (!ctx->cur_container) {
adamc@801	734 uw_set_error(ctx, "New entry without container");
adamc@801	735 return -1;
adamc@801	736 }
adamc@801	737
adamc@801	738 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	739 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	740 return -1;
adamc@801	741 }
adamc@759	742
adamc@759	743 inps = check_input_space(ctx, uw_inputs_len + 1);
adamc@759	744
adamc@759	745 inps->kind = ENTRY;
adamc@759	746 inps->data.entry.parent = ctx->cur_container;
adamc@759	747 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	748 ctx->cur_container->data.subforms.entries = inps;
adamc@759	749
adamc@759	750 inps->data.entry.fields = inps+1;
adamc@759	751 ctx->cur_container = inps;
adamc@756	752 } else {
adamc@756	753 int n = uw_input_num(name);
adamc@756	754
adamc@801	755 if (n < 0) {
adamc@801	756 uw_set_error(ctx, "Bad input name %s", name);
adamc@801	757 return -1;
adamc@801	758 }
adamc@801	759
adamc@801	760 if (n >= uw_inputs_len) {
adamc@801	761 uw_set_error(ctx, "For input name %s, index %d is out of range", name, n);
adamc@801	762 return -1;
adamc@801	763 }
adamc@756	764
adamc@756	765 INP(ctx)[n].kind = NORMAL;
adamc@756	766 INP(ctx)[n].data.normal = value;
adamc@756	767 }
adamc@801	768
adamc@801	769 return 0;
adamc@144	770 }
adamc@144	771
adamc@311	772 char *uw_get_input(uw_context ctx, int n) {
adamc@169	773 if (n < 0)
adamc@311	774 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311	775 if (n >= uw_inputs_len)
adamc@311	776 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	777
adamc@756	778 switch (INP(ctx)[n].kind) {
adamc@737	779 case UNSET:
adamc@737	780 return NULL;
adamc@739	781 case FIL:
adamc@739	782 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	783 case SUBFORM:
adamc@756	784 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	785 case SUBFORMS:
adamc@759	786 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	787 case ENTRY:
adamc@759	788 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	789 case NORMAL:
adamc@756	790 return INP(ctx)[n].data.normal;
adamc@737	791 default:
adamc@737	792 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	793 }
adamc@138	794 }
adamc@138	795
adamc@311	796 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	797 if (n < 0)
adamc@311	798 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311	799 if (n >= uw_inputs_len)
adamc@311	800 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	801
adamc@756	802 switch (INP(ctx)[n].kind) {
adamc@737	803 case UNSET:
adamc@737	804 return "";
adamc@739	805 case FIL:
adamc@739	806 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	807 case SUBFORM:
adamc@756	808 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	809 case SUBFORMS:
adamc@759	810 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	811 case ENTRY:
adamc@759	812 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	813 case NORMAL:
adamc@756	814 return INP(ctx)[n].data.normal;
adamc@737	815 default:
adamc@737	816 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	817 }
adamc@737	818 }
adamc@737	819
adamc@801	820 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@737	821 int n = uw_input_num(name);
adamc@737	822
adamc@801	823 if (n < 0) {
adamc@801	824 uw_set_error(ctx, "Bad file input name %s", name);
adamc@801	825 return -1;
adamc@801	826 }
adamc@801	827
adamc@801	828 if (n >= uw_inputs_len) {
adamc@801	829 uw_set_error(ctx, "For file input name %s, index %d is out of range", name, n);
adamc@801	830 return -1;
adamc@801	831 }
adamc@737	832
adamc@739	833 ctx->inputs[n].kind = FIL;
adamc@739	834 ctx->inputs[n].data.file = f;
adamc@801	835
adamc@801	836 return 0;
adamc@737	837 }
adamc@737	838
adamc@739	839 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	840
adamc@760	841
adamc@760	842 static void parents(input *inp) {
adamc@760	843 printf("Stack: %p\n", inp);
adamc@760	844 while (inp) {
adamc@760	845 switch (inp->kind) {
adamc@760	846 case NORMAL:
adamc@760	847 printf("Normal(%p)\n", inp);
adamc@760	848 break;
adamc@760	849 case FIL:
adamc@760	850 printf("File(%p)\n", inp);
adamc@760	851 break;
adamc@760	852 case SUBFORM:
adamc@760	853 printf("Subform; fields = %p\n", inp->data.subform.fields);
adamc@760	854 inp = inp->data.subform.parent;
adamc@760	855 break;
adamc@760	856 case SUBFORMS:
adamc@760	857 printf("Subforms; entries = %p\n", inp->data.subforms.entries);
adamc@760	858 inp = inp->data.subforms.parent;
adamc@760	859 break;
adamc@760	860 case ENTRY:
adamc@760	861 printf("Entry; fields = %p; next = %p\n", inp->data.entry.fields, inp->data.entry.next);
adamc@760	862 inp = inp->data.entry.parent;
adamc@760	863 break;
adamc@760	864 default:
adamc@760	865 inp = NULL;
adamc@760	866 }
adamc@760	867 }
adamc@760	868 }
adamc@760	869
adamc@739	870 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	871 if (n < 0)
adamc@737	872 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@737	873 if (n >= uw_inputs_len)
adamc@737	874 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	875
adamc@756	876 switch (INP(ctx)[n].kind) {
adamc@737	877 case UNSET:
adamc@737	878 {
adamc@739	879 char *data = uw_malloc(ctx, 0);
adamc@740	880 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	881 return f;
adamc@737	882 }
adamc@739	883 case FIL:
adamc@756	884 return INP(ctx)[n].data.file;
adamc@737	885 case NORMAL:
adamc@737	886 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	887 case SUBFORM:
adamc@756	888 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	889 case SUBFORMS:
adamc@759	890 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	891 case ENTRY:
adamc@759	892 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	893 default:
adamc@737	894 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	895 }
adamc@190	896 }
adamc@190	897
adamc@756	898 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	899 if (n < 0)
adamc@756	900 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@756	901 if (n >= uw_inputs_len)
adamc@756	902 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	903
adamc@756	904 switch (INP(ctx)[n].kind) {
adamc@756	905 case UNSET:
adamc@756	906 uw_error(ctx, FATAL, "Missing subform");
adamc@756	907 case FIL:
adamc@756	908 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	909 case NORMAL:
adamc@756	910 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	911 case SUBFORMS:
adamc@759	912 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	913 case ENTRY:
adamc@759	914 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	915 case SUBFORM:
adamc@759	916 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	917 ctx->cur_container = &INP(ctx)[n];
adamc@756	918 return;
adamc@756	919 default:
adamc@756	920 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	921 }
adamc@756	922 }
adamc@756	923
adamc@756	924 void uw_leave_subform(uw_context ctx) {
adamc@756	925 input *tmp;
adamc@756	926
adamc@759	927 if (ctx->cur_container == NULL)
adamc@756	928 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	929
adamc@759	930 tmp = ctx->cur_container;
adamc@759	931 ctx->cur_container = tmp->data.subform.parent;
adamc@759	932 tmp->data.subform.parent = NULL;
adamc@759	933 }
adamc@759	934
adamc@759	935 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	936 input *inps;
adamc@759	937
adamc@759	938 if (n < 0)
adamc@759	939 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@759	940 if (n >= uw_inputs_len)
adamc@759	941 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	942
adamc@759	943 switch (INP(ctx)[n].kind) {
adamc@759	944 case UNSET:
adamc@759	945 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	946 case FIL:
adamc@759	947 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	948 case NORMAL:
adamc@759	949 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	950 case SUBFORM:
adamc@759	951 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	952 case ENTRY:
adamc@759	953 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	954 case SUBFORMS:
adamc@759	955 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	956 if (inps) {
adamc@759	957 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	958 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	959 return 1;
adamc@759	960 } else
adamc@759	961 return 0;
adamc@759	962 default:
adamc@759	963 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	964 }
adamc@759	965 }
adamc@759	966
adamc@759	967 int uw_next_entry(uw_context ctx) {
adamc@759	968 if (ctx->cur_container == NULL)
adamc@759	969 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	970
adamc@759	971 switch (ctx->cur_container->kind) {
adamc@759	972 case UNSET:
adamc@759	973 uw_error(ctx, FATAL, "Missing entry");
adamc@759	974 case FIL:
adamc@759	975 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	976 case NORMAL:
adamc@759	977 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	978 case SUBFORM:
adamc@759	979 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	980 case SUBFORMS:
adamc@759	981 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	982 case ENTRY:
adamc@759	983 if (ctx->cur_container->data.entry.next) {
adamc@759	984 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	985 return 1;
adamc@759	986 } else {
adamc@759	987 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	988 return 0;
adamc@759	989 }
adamc@759	990 default:
adamc@759	991 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	992 }
adamc@756	993 }
adamc@756	994
adamc@643	995 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	996 ctx->script_header = s;
adamc@643	997 }
adamc@643	998
adamc@667	999 void uw_set_url_prefix(uw_context ctx, const char *s) {
adamc@667	1000 ctx->url_prefix = s;
adamc@667	1001 }
adamc@667	1002
adamc@693	1003 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1004 ctx->needs_push = n;
adamc@693	1005 }
adamc@693	1006
adamc@736	1007 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1008 ctx->needs_sig = n;
adamc@736	1009 }
adamc@736	1010
adamc@667	1011
adamc@667	1012 static void buf_check_ctx(uw_context ctx, buf b, size_t extra, const char desc) {
adamc@666	1013 if (b->back - b->front < extra) {
adamc@666	1014 size_t desired = b->front - b->start + extra, next;
adamc@136	1015 char *new_heap;
adamc@136	1016
adamc@666	1017 next = b->back - b->start;
adamc@317	1018 if (next == 0)
adamc@317	1019 next = 1;
adamc@317	1020 for (; next < desired; next *= 2);
adamc@136	1021
adamc@666	1022 new_heap = realloc(b->start, next);
adamc@666	1023 b->front = new_heap + (b->front - b->start);
adamc@666	1024 b->back = new_heap + next;
adamc@136	1025
adamc@667	1026 if (new_heap != b->start) {
adamc@666	1027 b->start = new_heap;
adamc@666	1028 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously", desc);
adamc@136	1029 }
adamc@136	1030
adamc@666	1031 b->start = new_heap;
adamc@136	1032 }
adamc@136	1033 }
adamc@136	1034
adamc@832	1035 void uw_check_heap(uw_context ctx, size_t extra) {
adamc@667	1036 buf_check_ctx(ctx, &ctx->heap, extra, "heap chunk");
adamc@666	1037 }
adamc@666	1038
adamc@832	1039 char *uw_heap_front(uw_context ctx) {
adamc@832	1040 return ctx->heap.front;
adamc@832	1041 }
adamc@832	1042
adamc@832	1043 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1044 ctx->heap.front = fr;
adamc@832	1045 }
adamc@832	1046
adamc@311	1047 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136	1048 void *result;
adamc@136	1049
adamc@311	1050 uw_check_heap(ctx, len);
adamc@136	1051
adamc@666	1052 result = ctx->heap.front;
adamc@666	1053 ctx->heap.front += len;
adamc@136	1054 return result;
adamc@117	1055 }
adamc@117	1056
adamc@323	1057 void uw_begin_region(uw_context ctx) {
adamc@666	1058 regions r = (regions ) ctx->heap.front;
adamc@323	1059
adamc@323	1060 uw_check_heap(ctx, sizeof(regions));
adamc@323	1061
adamc@666	1062 ctx->heap.front += sizeof(regions);
adamc@323	1063
adamc@323	1064 r->next = ctx->regions;
adamc@323	1065 ctx->regions = r;
adamc@323	1066 }
adamc@323	1067
adamc@323	1068 void uw_end_region(uw_context ctx) {
adamc@323	1069 regions *r = ctx->regions;
adamc@323	1070
adamc@323	1071 if (r == NULL)
adamc@323	1072 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1073
adamc@666	1074 ctx->heap.front = (char *) r;
adamc@323	1075 ctx->regions = r->next;
adamc@323	1076 }
adamc@323	1077
adamc@324	1078 void uw_memstats(uw_context ctx) {
adamc@666	1079 printf("Headers: %d/%d\n", buf_used(&ctx->outHeaders), buf_avail(&ctx->outHeaders));
adamc@666	1080 printf("Script: %d/%d\n", buf_used(&ctx->script), buf_avail(&ctx->script));
adamc@666	1081 printf("Page: %d/%d\n", buf_used(&ctx->page), buf_avail(&ctx->page));
adamc@666	1082 printf("Heap: %d/%d\n", buf_used(&ctx->heap), buf_avail(&ctx->heap));
adamc@324	1083 }
adamc@324	1084
adamc@311	1085 int uw_send(uw_context ctx, int sock) {
adamc@666	1086 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462	1087
adamc@462	1088 if (n < 0)
adamc@462	1089 return n;
adamc@462	1090
adamc@462	1091 n = uw_really_send(sock, "\r\n", 2);
adamc@462	1092
adamc@462	1093 if (n < 0)
adamc@462	1094 return n;
adamc@462	1095
adamc@666	1096 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462	1097 }
adamc@462	1098
adamc@856	1099 int uw_print(uw_context ctx, int fd) {
adamc@856	1100 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1101
adamc@856	1102 if (n < 0)
adamc@856	1103 return n;
adamc@856	1104
adamc@856	1105 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1106
adamc@856	1107 if (n < 0)
adamc@856	1108 return n;
adamc@856	1109
adamc@856	1110 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1111 }
adamc@856	1112
adamc@860	1113 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1114 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1115
adamc@860	1116 if (n < 0)
adamc@860	1117 return n;
adamc@860	1118
adamc@860	1119 n = output(data, "\r\n", 2);
adamc@860	1120
adamc@860	1121 if (n < 0)
adamc@860	1122 return n;
adamc@860	1123
adamc@860	1124 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1125 }
adamc@860	1126
adamc@462	1127 static void uw_check_headers(uw_context ctx, size_t extra) {
adamc@667	1128 buf_check(&ctx->outHeaders, extra);
adamc@462	1129 }
adamc@462	1130
adamc@462	1131 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1132 int len = strlen(s);
adamc@462	1133
adamc@462	1134 uw_check_headers(ctx, len + 1);
adamc@666	1135 strcpy(ctx->outHeaders.front, s);
adamc@666	1136 ctx->outHeaders.front += len;
adamc@562	1137 }
adamc@562	1138
adamc@562	1139 static void uw_check_script(uw_context ctx, size_t extra) {
adamc@667	1140 buf_check(&ctx->script, extra);
adamc@562	1141 }
adamc@562	1142
adamc@562	1143 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1144 int len = strlen(s);
adamc@562	1145
adamc@562	1146 uw_check_script(ctx, len + 1);
adamc@666	1147 strcpy(ctx->script.front, s);
adamc@666	1148 ctx->script.front += len;
adamc@562	1149 }
adamc@562	1150
adamc@645	1151 const char *uw_Basis_get_script(uw_context ctx, uw_unit u) {
adamc@667	1152 if (ctx->script_header[0] == 0)
adamc@667	1153 return "";
adamc@696	1154 else if (buf_used(&ctx->script) == 0)
adamc@696	1155 return ctx->script_header;
adamc@667	1156 else {
adamc@695	1157 char *r = uw_malloc(ctx, strlen(ctx->script_header) + 42 + buf_used(&ctx->script));
adamc@695	1158 sprintf(r, "%s<script type=\"text/javascript\">%s</script>",
adamc@673	1159 ctx->script_header,
adamc@673	1160 ctx->script.start);
adamc@565	1161 return r;
adamc@565	1162 }
adamc@565	1163 }
adamc@565	1164
adamc@695	1165 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1166 if (s[0] == 0)
adamc@695	1167 return "";
adamc@695	1168 else {
adamc@695	1169 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1170 sprintf(r, " onload='%s'", s);
adamc@695	1171 return r;
adamc@695	1172 }
adamc@695	1173 }
adamc@695	1174
adamc@736	1175 extern uw_Basis_string uw_cookie_sig(uw_context);
adamc@736	1176
adamc@694	1177 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1178 if (ctx->client == NULL) {
adamc@736	1179 if (ctx->needs_sig) {
adamc@736	1180 char *sig = uw_cookie_sig(ctx);
adamc@736	1181 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1182 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1183 return r;
adamc@736	1184 }
adamc@736	1185 else
adamc@736	1186 return "";
adamc@736	1187 } else {
adamc@736	1188 char *sig = ctx->needs_sig ? uw_cookie_sig(ctx) : "";
adamc@736	1189 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->url_prefix)
adamc@736	1190 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adamc@736	1191 sprintf(r, "client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adamc@682	1192 ctx->client->id,
adamc@682	1193 ctx->client->pass,
adamc@679	1194 ctx->url_prefix,
adamc@736	1195 ctx->timeout,
adamc@736	1196 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1197 sig,
adamc@736	1198 ctx->needs_sig ? "\";" : "");
adamc@679	1199 return r;
adamc@668	1200 }
adamc@667	1201 }
adamc@667	1202
adamc@574	1203 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1204 char r, s2;
adamc@574	1205
adamc@574	1206 uw_check_heap(ctx, strlen(s) * 4 + 2);
adamc@574	1207
adamc@666	1208 r = s2 = ctx->heap.front;
adamc@574	1209 *s2++ = '"';
adamc@574	1210
adamc@574	1211 for (; *s; s++) {
adamc@574	1212 char c = *s;
adamc@574	1213
adamc@574	1214 switch (c) {
adamc@574	1215 case '"':
adamc@574	1216 strcpy(s2, "\\\"");
adamc@574	1217 s2 += 2;
adamc@574	1218 break;
adamc@574	1219 case '\\':
adamc@574	1220 strcpy(s2, "\\\\");
adamc@574	1221 s2 += 2;
adamc@574	1222 break;
adamc@574	1223 default:
adamc@574	1224 if (isprint(c))
adamc@574	1225 *s2++ = c;
adamc@574	1226 else {
adamc@574	1227 sprintf(s2, "\\%3o", c);
adamc@574	1228 s2 += 4;
adamc@574	1229 }
adamc@574	1230 }
adamc@574	1231 }
adamc@574	1232
adamc@574	1233 strcpy(s2, "\"");
adamc@666	1234 ctx->heap.front = s2 + 1;
adamc@574	1235 return r;
adamc@574	1236 }
adamc@574	1237
adamc@574	1238 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1239 char r, s2;
adamc@574	1240
adamc@574	1241 uw_check_script(ctx, strlen(s) * 4 + 2);
adamc@574	1242
adamc@666	1243 r = s2 = ctx->script.front;
adamc@574	1244 *s2++ = '"';
adamc@574	1245
adamc@574	1246 for (; *s; s++) {
adamc@574	1247 char c = *s;
adamc@574	1248
adamc@574	1249 switch (c) {
adamc@577	1250 case '\'':
adamc@574	1251 strcpy(s2, "\\\"");
adamc@574	1252 s2 += 2;
adamc@574	1253 break;
adamc@574	1254 case '\\':
adamc@574	1255 strcpy(s2, "\\\\");
adamc@574	1256 s2 += 2;
adamc@574	1257 break;
adamc@574	1258 default:
adamc@574	1259 if (isprint(c))
adamc@574	1260 *s2++ = c;
adamc@574	1261 else {
adamc@574	1262 sprintf(s2, "\\%3o", c);
adamc@574	1263 s2 += 4;
adamc@574	1264 }
adamc@574	1265 }
adamc@574	1266 }
adamc@574	1267
adamc@574	1268 strcpy(s2, "\"");
adamc@666	1269 ctx->script.front = s2 + 1;
adamc@574	1270 return r;
adamc@574	1271 }
adamc@574	1272
adamc@682	1273 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1274 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1275 return "null";
adamc@682	1276 else {
adamc@682	1277 int len;
adamc@682	1278 char *r;
adamc@682	1279
adamc@682	1280 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1281 r = ctx->heap.front;
adamc@682	1282 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1283 ctx->heap.front += len+1;
adamc@682	1284 return r;
adamc@682	1285 }
adamc@682	1286 }
adamc@682	1287
adamc@577	1288 uw_Basis_int uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1289 int len;
adamc@577	1290 size_t s_len = strlen(s);
adamc@562	1291
adamc@577	1292 uw_check_script(ctx, 12 + INTS_MAX + s_len);
adamc@666	1293 sprintf(ctx->script.front, "var s%d=sc(%n", ctx->source_count, &len);
adamc@666	1294 ctx->script.front += len;
adamc@666	1295 strcpy(ctx->script.front, s);
adamc@666	1296 ctx->script.front += s_len;
adamc@666	1297 strcpy(ctx->script.front, ");");
adamc@666	1298 ctx->script.front += 2;
adamc@562	1299
adamc@565	1300 return ctx->source_count++;
adamc@117	1301 }
adamc@117	1302
adamc@577	1303 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_int n, uw_Basis_string s) {
adamc@577	1304 int len;
adamc@577	1305 size_t s_len = strlen(s);
adamc@577	1306
adamc@577	1307 uw_check_script(ctx, 6 + INTS_MAX + s_len);
adamc@844	1308 sprintf(ctx->script.front, "sv(s%d,%n", (int)n, &len);
adamc@666	1309 ctx->script.front += len;
adamc@666	1310 strcpy(ctx->script.front, s);
adamc@666	1311 ctx->script.front += s_len;
adamc@844	1312 strcpy(ctx->script.front, ");");
adamc@844	1313 ctx->script.front += 2;
adamc@577	1314
adamc@577	1315 return uw_unit_v;
adamc@577	1316 }
adamc@577	1317
adamc@311	1318 static void uw_check(uw_context ctx, size_t extra) {
adamc@667	1319 buf_check(&ctx->page, extra);
adamc@117	1320 }
adamc@117	1321
adamc@311	1322 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1323 *(ctx->page.front)++ = c;
adamc@117	1324 }
adamc@117	1325
adamc@311	1326 void uw_writec(uw_context ctx, char c) {
adamc@311	1327 uw_check(ctx, 1);
adamc@311	1328 uw_writec_unsafe(ctx, c);
adamc@117	1329 }
adamc@117	1330
adamc@311	1331 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1332 int len = strlen(s);
adamc@666	1333 memcpy(ctx->page.front, s, len);
adamc@666	1334 ctx->page.front += len;
adamc@117	1335 }
adamc@117	1336
adamc@311	1337 void uw_write(uw_context ctx, const char* s) {
adamc@311	1338 uw_check(ctx, strlen(s) + 1);
adamc@311	1339 uw_write_unsafe(ctx, s);
adamc@666	1340 *ctx->page.front = 0;
adamc@102	1341 }
adamc@106	1342
adamc@311	1343 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1344 char *result;
adamc@136	1345 int len;
adamc@311	1346 uw_check_heap(ctx, INTS_MAX);
adamc@666	1347 result = ctx->heap.front;
adamc@276	1348 sprintf(result, "%lld%n", n, &len);
adamc@666	1349 ctx->heap.front += len+1;
adamc@136	1350 return result;
adamc@106	1351 }
adamc@106	1352
adamc@311	1353 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1354 char *result;
adamc@136	1355 int len;
adamc@311	1356 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1357 result = ctx->heap.front;
adamc@136	1358 sprintf(result, "%g%n", n, &len);
adamc@666	1359 ctx->heap.front += len+1;
adamc@136	1360 return result;
adamc@106	1361 }
adamc@106	1362
adamc@311	1363 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1364 int len = strlen(s);
adamc@136	1365 char result, p;
adamc@311	1366 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1367
adamc@666	1368 result = p = ctx->heap.front;
adamc@136	1369
adamc@136	1370 for (; *s; s++) {
adamc@136	1371 char c = *s;
adamc@136	1372
adamc@136	1373 if (c == '"') {
adamc@136	1374 strcpy(p, """);
adamc@136	1375 p += 6;
adamc@136	1376 } else if (c == '&') {
adamc@136	1377 strcpy(p, "&");
adamc@136	1378 p += 5;
adamc@136	1379 }
adamc@136	1380 else if (isprint(c))
adamc@136	1381 *p++ = c;
adamc@136	1382 else {
adamc@136	1383 int len2;
adamc@136	1384 sprintf(p, "&#%d;%n", c, &len2);
adamc@136	1385 p += len2;
adamc@136	1386 }
adamc@136	1387 }
adamc@136	1388
adamc@137	1389 *p++ = 0;
adamc@666	1390 ctx->heap.front = p;
adamc@136	1391 return result;
adamc@106	1392 }
adamc@106	1393
adamc@721	1394 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1395 return s;
adamc@721	1396 }
adamc@721	1397
adamc@311	1398 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1399 int len;
adamc@117	1400
adamc@666	1401 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1402 ctx->page.front += len;
adamc@106	1403 }
adamc@106	1404
adamc@428	1405 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1406 uw_check(ctx, INTS_MAX);
adamc@311	1407 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1408
adamc@428	1409 return uw_unit_v;
adamc@106	1410 }
adamc@106	1411
adamc@428	1412 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1413 int len;
adamc@117	1414
adamc@311	1415 uw_check(ctx, FLOATS_MAX);
adamc@666	1416 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1417 ctx->page.front += len;
adamc@428	1418
adamc@428	1419 return uw_unit_v;
adamc@117	1420 }
adamc@117	1421
adamc@428	1422 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1423 uw_check(ctx, strlen(s) * 6);
adamc@117	1424
adamc@106	1425 for (; *s; s++) {
adamc@106	1426 char c = *s;
adamc@106	1427
adamc@106	1428 if (c == '"')
adamc@311	1429 uw_write_unsafe(ctx, """);
adamc@136	1430 else if (c == '&')
adamc@311	1431 uw_write_unsafe(ctx, "&");
adamc@106	1432 else if (isprint(c))
adamc@311	1433 uw_writec_unsafe(ctx, c);
adamc@106	1434 else {
adamc@311	1435 uw_write_unsafe(ctx, "&#");
adamc@311	1436 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311	1437 uw_writec_unsafe(ctx, ';');
adamc@106	1438 }
adamc@106	1439 }
adamc@428	1440
adamc@428	1441 return uw_unit_v;
adamc@106	1442 }
adamc@120	1443
adamc@120	1444
adamc@311	1445 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1446 int len;
adamc@137	1447 char *r;
adamc@137	1448
adamc@311	1449 uw_check_heap(ctx, INTS_MAX);
adamc@666	1450 r = ctx->heap.front;
adamc@276	1451 sprintf(r, "%lld%n", n, &len);
adamc@666	1452 ctx->heap.front += len+1;
adamc@137	1453 return r;
adamc@120	1454 }
adamc@120	1455
adamc@682	1456 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1457 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1458 return "";
adamc@682	1459 else {
adamc@682	1460 int len;
adamc@682	1461 char *r;
adamc@679	1462
adamc@682	1463 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1464 r = ctx->heap.front;
adamc@682	1465 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1466 ctx->heap.front += len+1;
adamc@682	1467 return r;
adamc@682	1468 }
adamc@679	1469 }
adamc@679	1470
adamc@311	1471 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1472 int len;
adamc@137	1473 char *r;
adamc@137	1474
adamc@311	1475 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1476 r = ctx->heap.front;
adamc@137	1477 sprintf(r, "%g%n", n, &len);
adamc@666	1478 ctx->heap.front += len+1;
adamc@137	1479 return r;
adamc@120	1480 }
adamc@120	1481
adamc@311	1482 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1483 char r, p;
adamc@137	1484
adamc@311	1485 uw_check_heap(ctx, strlen(s) * 3 + 1);
adamc@137	1486
adamc@666	1487 for (r = p = ctx->heap.front; *s; s++) {
adamc@137	1488 char c = *s;
adamc@137	1489
adamc@137	1490 if (c == ' ')
adamc@137	1491 *p++ = '+';
adamc@137	1492 else if (isalnum(c))
adamc@137	1493 *p++ = c;
adamc@137	1494 else {
adamc@137	1495 sprintf(p, "%%%02X", c);
adamc@137	1496 p += 3;
adamc@137	1497 }
adamc@137	1498 }
adamc@137	1499
adamc@137	1500 *p++ = 0;
adamc@666	1501 ctx->heap.front = p;
adamc@137	1502 return r;
adamc@120	1503 }
adamc@120	1504
adamc@311	1505 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1506 if (b == uw_Basis_False)
adamc@186	1507 return "0";
adamc@186	1508 else
adamc@186	1509 return "1";
adamc@186	1510 }
adamc@186	1511
adamc@311	1512 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1513 int len;
adamc@120	1514
adamc@666	1515 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1516 ctx->page.front += len;
adamc@120	1517 }
adamc@120	1518
adamc@428	1519 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1520 uw_check(ctx, INTS_MAX);
adamc@311	1521 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1522
adamc@428	1523 return uw_unit_v;
adamc@120	1524 }
adamc@120	1525
adamc@682	1526 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1527 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1528 int len;
adamc@682	1529
adamc@682	1530 uw_check(ctx, INTS_MAX + 1);
adamc@682	1531 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1532 ctx->page.front += len;
adamc@682	1533 }
adamc@682	1534
adamc@679	1535 return uw_unit_v;
adamc@679	1536 }
adamc@679	1537
adamc@428	1538 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1539 int len;
adamc@120	1540
adamc@311	1541 uw_check(ctx, FLOATS_MAX);
adamc@666	1542 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1543 ctx->page.front += len;
adamc@428	1544
adamc@428	1545 return uw_unit_v;
adamc@120	1546 }
adamc@120	1547
adamc@488	1548 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@488	1549 return uw_Basis_urlifyInt(ctx, t);
adamc@488	1550 }
adamc@488	1551
adamc@428	1552 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1553 uw_check(ctx, strlen(s) * 3);
adamc@120	1554
adamc@120	1555 for (; *s; s++) {
adamc@120	1556 char c = *s;
adamc@120	1557
adamc@120	1558 if (c == ' ')
adamc@311	1559 uw_writec_unsafe(ctx, '+');
adamc@120	1560 else if (isalnum(c))
adamc@311	1561 uw_writec_unsafe(ctx, c);
adamc@120	1562 else {
adamc@666	1563 sprintf(ctx->page.front, "%%%02X", c);
adamc@666	1564 ctx->page.front += 3;
adamc@120	1565 }
adamc@120	1566 }
adamc@428	1567
adamc@428	1568 return uw_unit_v;
adamc@120	1569 }
adamc@120	1570
adamc@428	1571 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1572 if (b == uw_Basis_False)
adamc@311	1573 uw_writec(ctx, '0');
adamc@186	1574 else
adamc@311	1575 uw_writec(ctx, '1');
adamc@428	1576
adamc@428	1577 return uw_unit_v;
adamc@186	1578 }
adamc@186	1579
adamc@120	1580
adamc@311	1581 static char uw_unurlify_advance(char s) {
adamc@144	1582 char *new_s = strchr(s, '/');
adamc@120	1583
adamc@120	1584 if (new_s)
adamc@120	1585 *new_s++ = 0;
adamc@120	1586 else
adamc@144	1587 new_s = strchr(s, 0);
adamc@144	1588
adamc@144	1589 return new_s;
adamc@144	1590 }
adamc@144	1591
adamc@311	1592 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1593 char new_s = uw_unurlify_advance(s);
adamc@311	1594 uw_Basis_int r;
adamc@120	1595
adamc@276	1596 r = atoll(*s);
adamc@120	1597 *s = new_s;
adamc@120	1598 return r;
adamc@120	1599 }
adamc@120	1600
adamc@311	1601 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1602 char new_s = uw_unurlify_advance(s);
adamc@311	1603 uw_Basis_float r;
adamc@120	1604
adamc@120	1605 r = atof(*s);
adamc@120	1606 *s = new_s;
adamc@120	1607 return r;
adamc@120	1608 }
adamc@120	1609
adamc@488	1610 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adamc@488	1611 return uw_Basis_unurlifyInt(ctx, s);
adamc@488	1612 }
adamc@488	1613
adamc@311	1614 static uw_Basis_string uw_unurlifyString_to(uw_context ctx, char r, char s) {
adamc@144	1615 char s1, s2;
adamc@144	1616 int n;
adamc@136	1617
adamc@144	1618 for (s1 = r, s2 = s; *s2; ++s1, ++s2) {
adamc@136	1619 char c = *s2;
adamc@136	1620
adamc@136	1621 switch (c) {
adamc@136	1622 case '+':
adamc@136	1623 *s1 = ' ';
adamc@136	1624 break;
adamc@136	1625 case '%':
adamc@169	1626 if (s2[1] == 0)
adamc@311	1627 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1628 if (s2[2] == 0)
adamc@311	1629 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1630 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@311	1631 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@136	1632 *s1 = n;
adamc@136	1633 s2 += 2;
adamc@136	1634 break;
adamc@136	1635 default:
adamc@136	1636 *s1 = c;
adamc@136	1637 }
adamc@136	1638 }
adamc@136	1639 *s1++ = 0;
adamc@144	1640 return s1;
adamc@144	1641 }
adamc@144	1642
adamc@311	1643 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	1644 char new_s = uw_unurlify_advance(s);
adamc@311	1645 uw_Basis_bool r;
adamc@186	1646
adamc@186	1647 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	1648 r = uw_Basis_False;
adamc@186	1649 else
adamc@311	1650 r = uw_Basis_True;
adamc@186	1651
adamc@186	1652 *s = new_s;
adamc@186	1653 return r;
adamc@186	1654 }
adamc@186	1655
adamc@311	1656 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	1657 char new_s = uw_unurlify_advance(s);
adamc@144	1658 char r, s1, *s2;
adamc@144	1659 int len, n;
adamc@144	1660
adamc@200	1661 len = strlen(*s);
adamc@311	1662 uw_check_heap(ctx, len + 1);
adamc@144	1663
adamc@666	1664 r = ctx->heap.front;
adamc@666	1665 ctx->heap.front = uw_unurlifyString_to(ctx, ctx->heap.front, *s);
adamc@136	1666 *s = new_s;
adamc@136	1667 return r;
adamc@120	1668 }
adamc@135	1669
adamc@135	1670
adamc@311	1671 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	1672 int len;
adamc@286	1673 char *r;
adamc@286	1674
adamc@311	1675 uw_check_heap(ctx, INTS_MAX);
adamc@666	1676 r = ctx->heap.front;
adamc@286	1677 sprintf(r, "%lld%n", n, &len);
adamc@666	1678 ctx->heap.front += len+1;
adamc@286	1679 return r;
adamc@286	1680 }
adamc@286	1681
adamc@428	1682 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	1683 int len;
adamc@286	1684
adamc@311	1685 uw_check(ctx, INTS_MAX);
adamc@666	1686 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1687 ctx->page.front += len;
adamc@428	1688
adamc@428	1689 return uw_unit_v;
adamc@286	1690 }
adamc@286	1691
adamc@311	1692 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	1693 int len;
adamc@286	1694 char *r;
adamc@286	1695
adamc@311	1696 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1697 r = ctx->heap.front;
adamc@286	1698 sprintf(r, "%g%n", n, &len);
adamc@666	1699 ctx->heap.front += len+1;
adamc@286	1700 return r;
adamc@286	1701 }
adamc@286	1702
adamc@428	1703 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	1704 int len;
adamc@286	1705
adamc@311	1706 uw_check(ctx, FLOATS_MAX);
adamc@666	1707 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1708 ctx->page.front += len;
adamc@428	1709
adamc@428	1710 return uw_unit_v;
adamc@286	1711 }
adamc@286	1712
adamc@311	1713 char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1714 char r, s2;
adamc@137	1715
adamc@311	1716 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	1717
adamc@666	1718 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@137	1719 char c = *s;
adamc@137	1720
adamc@137	1721 switch (c) {
adamc@137	1722 case '<':
adamc@137	1723 strcpy(s2, "<");
adamc@137	1724 s2 += 4;
adamc@137	1725 break;
adamc@137	1726 case '&':
adamc@137	1727 strcpy(s2, "&");
adamc@137	1728 s2 += 5;
adamc@137	1729 break;
adamc@137	1730 default:
adamc@137	1731 if (isprint(c))
adamc@137	1732 *s2++ = c;
adamc@137	1733 else {
adamc@137	1734 int len2;
adamc@137	1735 sprintf(s2, "&#%d;%n", c, &len2);
adamc@137	1736 s2 += len2;
adamc@137	1737 }
adamc@137	1738 }
adamc@137	1739 }
adamc@137	1740
adamc@137	1741 *s2++ = 0;
adamc@666	1742 ctx->heap.front = s2;
adamc@137	1743 return r;
adamc@135	1744 }
adamc@135	1745
adamc@428	1746 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	1747 uw_check(ctx, strlen(s) * 6);
adamc@135	1748
adamc@135	1749 for (; *s; s++) {
adamc@135	1750 char c = *s;
adamc@135	1751
adamc@135	1752 switch (c) {
adamc@135	1753 case '<':
adamc@311	1754 uw_write_unsafe(ctx, "<");
adamc@135	1755 break;
adamc@135	1756 case '&':
adamc@311	1757 uw_write_unsafe(ctx, "&");
adamc@135	1758 break;
adamc@135	1759 default:
adamc@135	1760 if (isprint(c))
adamc@311	1761 uw_writec_unsafe(ctx, c);
adamc@135	1762 else {
adamc@311	1763 uw_write_unsafe(ctx, "&#");
adamc@311	1764 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311	1765 uw_writec_unsafe(ctx, ';');
adamc@135	1766 }
adamc@135	1767 }
adamc@135	1768 }
adamc@428	1769
adamc@428	1770 return uw_unit_v;
adamc@135	1771 }
adamc@180	1772
adamc@311	1773 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1774 if (b == uw_Basis_False)
adamc@286	1775 return "False";
adamc@286	1776 else
adamc@286	1777 return "True";
adamc@286	1778 }
adamc@286	1779
adamc@428	1780 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1781 if (b == uw_Basis_False) {
adamc@311	1782 uw_check(ctx, 6);
adamc@666	1783 strcpy(ctx->page.front, "False");
adamc@666	1784 ctx->page.front += 5;
adamc@286	1785 } else {
adamc@311	1786 uw_check(ctx, 5);
adamc@666	1787 strcpy(ctx->page.front, "True");
adamc@666	1788 ctx->page.front += 4;
adamc@286	1789 }
adamc@428	1790
adamc@428	1791 return uw_unit_v;
adamc@286	1792 }
adamc@286	1793
adamc@436	1794 #define TIME_FMT "%x %X"
adamc@438	1795 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436	1796
adamc@436	1797 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436	1798 size_t len;
adamc@436	1799 char *r;
adamc@436	1800 struct tm stm;
adamc@436	1801
adamc@436	1802 if (localtime_r(&t, &stm)) {
adamc@436	1803 uw_check_heap(ctx, TIMES_MAX);
adamc@666	1804 r = ctx->heap.front;
adamc@436	1805 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	1806 ctx->heap.front += len+1;
adamc@436	1807 return r;
adamc@436	1808 } else
adamc@436	1809 return "<i>Invalid time</i>";
adamc@436	1810 }
adamc@436	1811
adamc@436	1812 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436	1813 size_t len;
adamc@436	1814 char *r;
adamc@436	1815 struct tm stm;
adamc@436	1816
adamc@436	1817 if (localtime_r(&t, &stm)) {
adamc@436	1818 uw_check(ctx, TIMES_MAX);
adamc@666	1819 r = ctx->page.front;
adamc@436	1820 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	1821 ctx->page.front += len;
adamc@436	1822 } else {
adamc@436	1823 uw_check(ctx, 20);
adamc@666	1824 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666	1825 ctx->page.front += 19;
adamc@436	1826 }
adamc@436	1827
adamc@436	1828 return uw_unit_v;
adamc@436	1829 }
adamc@436	1830
adamc@821	1831 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	1832 if (n >= 0 && n < strlen(s))
adamc@821	1833 return s[n];
adamc@821	1834 else
adamc@821	1835 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adamc@821	1836 }
adamc@821	1837
adamc@821	1838 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	1839 if (n >= 0 && n < strlen(s))
adamc@821	1840 return &s[n];
adamc@821	1841 else
adamc@821	1842 uw_error(ctx, FATAL, "Out-of-bounds strsuffix");
adamc@821	1843 }
adamc@821	1844
adamc@828	1845 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	1846 return strlen(s);
adamc@828	1847 }
adamc@828	1848
adamc@829	1849 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	1850 return strchr(s, ch);
adamc@829	1851 }
adamc@829	1852
adamc@831	1853 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	1854 return strcspn(s, chs);
adamc@831	1855 }
adamc@831	1856
adamc@829	1857 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	1858 uw_Basis_string r = strchr(s, ch);
adamc@829	1859 if (r == NULL)
adamc@829	1860 return NULL;
adamc@829	1861 else {
adamc@829	1862 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	1863 *nr = r - s;
adamc@829	1864 return nr;
adamc@829	1865 }
adamc@829	1866 }
adamc@829	1867
adamc@311	1868 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	1869 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	1870 char *s;
adamc@180	1871
adamc@311	1872 uw_check_heap(ctx, len);
adamc@180	1873
adamc@666	1874 s = ctx->heap.front;
adamc@180	1875
adamc@180	1876 strcpy(s, s1);
adamc@180	1877 strcat(s, s2);
adamc@666	1878 ctx->heap.front += len;
adamc@180	1879
adamc@180	1880 return s;
adamc@180	1881 }
adamc@278	1882
adamc@829	1883 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	1884 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	1885
adamc@829	1886 if (start < 0)
adamc@829	1887 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	1888 if (len < 0)
adamc@829	1889 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	1890 if (start + len > full_len)
adamc@829	1891 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	1892
adamc@829	1893 if (start + len == full_len)
adamc@829	1894 return &s[start];
adamc@829	1895 else {
adamc@829	1896 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@829	1897 memcpy(r, s, len);
adamc@829	1898 r[len] = 0;
adamc@829	1899 return r;
adamc@829	1900 }
adamc@829	1901
adamc@829	1902 }
adamc@829	1903
adamc@737	1904 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	1905 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	1906 char *s;
adamc@278	1907
adamc@311	1908 uw_check_heap(ctx, len);
adamc@278	1909
adamc@666	1910 s = ctx->heap.front;
adamc@278	1911
adamc@278	1912 strcpy(s, s1);
adamc@666	1913 ctx->heap.front += len;
adamc@278	1914
adamc@278	1915 return s;
adamc@278	1916 }
adamc@280	1917
adamc@737	1918 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	1919 if (s1)
adamc@737	1920 return uw_strdup(ctx, s1);
adamc@493	1921 else
adamc@493	1922 return NULL;
adamc@493	1923 }
adamc@493	1924
adamc@742	1925 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	1926 char *r = uw_malloc(ctx, len);
adamc@742	1927 memcpy(r, p, len);
adamc@742	1928 return r;
adamc@742	1929 }
adamc@280	1930
adamc@311	1931 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	1932 int len;
adamc@281	1933 char *r;
adamc@281	1934
adamc@311	1935 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	1936 r = ctx->heap.front;
adamc@281	1937 sprintf(r, "%lld::int8%n", n, &len);
adamc@666	1938 ctx->heap.front += len+1;
adamc@281	1939 return r;
adamc@281	1940 }
adamc@281	1941
adamc@467	1942 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	1943 if (n == NULL)
adamc@467	1944 return "NULL";
adamc@467	1945 else
adamc@467	1946 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	1947 }
adamc@467	1948
adamc@311	1949 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	1950 int len;
adamc@281	1951 char *r;
adamc@281	1952
adamc@311	1953 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	1954 r = ctx->heap.front;
adamc@281	1955 sprintf(r, "%g::float8%n", n, &len);
adamc@666	1956 ctx->heap.front += len+1;
adamc@281	1957 return r;
adamc@281	1958 }
adamc@281	1959
adamc@467	1960 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	1961 if (n == NULL)
adamc@467	1962 return "NULL";
adamc@467	1963 else
adamc@467	1964 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	1965 }
adamc@467	1966
adamc@281	1967
adamc@311	1968 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	1969 char r, s2;
adamc@280	1970
adamc@311	1971 uw_check_heap(ctx, strlen(s) * 2 + 10);
adamc@280	1972
adamc@666	1973 r = s2 = ctx->heap.front;
adamc@280	1974 *s2++ = 'E';
adamc@280	1975 *s2++ = '\'';
adamc@280	1976
adamc@280	1977 for (; *s; s++) {
adamc@280	1978 char c = *s;
adamc@280	1979
adamc@280	1980 switch (c) {
adamc@280	1981 case '\'':
adamc@280	1982 strcpy(s2, "\\'");
adamc@280	1983 s2 += 2;
adamc@280	1984 break;
adamc@280	1985 case '\\':
adamc@280	1986 strcpy(s2, "\\\\");
adamc@280	1987 s2 += 2;
adamc@280	1988 break;
adamc@280	1989 default:
adamc@280	1990 if (isprint(c))
adamc@280	1991 *s2++ = c;
adamc@280	1992 else {
adamc@737	1993 sprintf(s2, "\\%03o", c);
adamc@280	1994 s2 += 4;
adamc@280	1995 }
adamc@280	1996 }
adamc@280	1997 }
adamc@280	1998
adamc@281	1999 strcpy(s2, "'::text");
adamc@666	2000 ctx->heap.front = s2 + 8;
adamc@280	2001 return r;
adamc@280	2002 }
adamc@281	2003
adamc@737	2004 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2005 char r, s2;
adamc@737	2006 size_t i;
adamc@737	2007
adamc@737	2008 uw_check_heap(ctx, b.size * 5 + 11);
adamc@737	2009
adamc@737	2010 r = s2 = ctx->heap.front;
adamc@737	2011 *s2++ = 'E';
adamc@737	2012 *s2++ = '\'';
adamc@737	2013
adamc@737	2014 for (i = 0; i < b.size; ++i) {
adamc@737	2015 char c = b.data[i];
adamc@737	2016
adamc@737	2017 switch (c) {
adamc@737	2018 case '\'':
adamc@737	2019 strcpy(s2, "\\'");
adamc@737	2020 s2 += 2;
adamc@737	2021 break;
adamc@737	2022 case '\\':
adamc@737	2023 strcpy(s2, "\\\\\\\\");
adamc@737	2024 s2 += 4;
adamc@737	2025 break;
adamc@737	2026 default:
adamc@737	2027 if (isprint(c))
adamc@737	2028 *s2++ = c;
adamc@737	2029 else {
adamc@737	2030 sprintf(s2, "\\\\%03o", c);
adamc@737	2031 s2 += 5;
adamc@737	2032 }
adamc@737	2033 }
adamc@737	2034 }
adamc@737	2035
adamc@737	2036 strcpy(s2, "'::bytea");
adamc@737	2037 ctx->heap.front = s2 + 9;
adamc@737	2038 return r;
adamc@737	2039 }
adamc@737	2040
adamc@682	2041 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2042 int len;
adamc@682	2043 char *r;
adamc@682	2044 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2045
adamc@682	2046 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2047 r = ctx->heap.front;
adamc@682	2048 sprintf(r, "%lld::int8%n", combo, &len);
adamc@682	2049 ctx->heap.front += len+1;
adamc@682	2050 return r;
adamc@682	2051 }
adamc@682	2052
adamc@682	2053 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2054 int len;
adamc@682	2055 char *r;
adamc@682	2056 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2057
adamc@682	2058 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2059 r = ctx->heap.front;
adamc@682	2060 sprintf(r, "%lld%n", combo, &len);
adamc@682	2061 ctx->heap.front += len+1;
adamc@682	2062 return r;
adamc@682	2063 }
adamc@682	2064
adamc@682	2065 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2066 int len;
adamc@682	2067 char *r;
adamc@682	2068
adamc@682	2069 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2070 r = ctx->heap.front;
adamc@682	2071 sprintf(r, "%u::int4%n", cli, &len);
adamc@682	2072 ctx->heap.front += len+1;
adamc@682	2073 return r;
adamc@682	2074 }
adamc@682	2075
adamc@682	2076 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2077 int len;
adamc@682	2078 char *r;
adamc@682	2079
adamc@682	2080 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2081 r = ctx->heap.front;
adamc@682	2082 sprintf(r, "%u%n", cli, &len);
adamc@682	2083 ctx->heap.front += len+1;
adamc@682	2084 return r;
adamc@682	2085 }
adamc@682	2086
adamc@467	2087 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2088 if (s == NULL)
adamc@467	2089 return "NULL";
adamc@467	2090 else
adamc@467	2091 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2092 }
adamc@467	2093
adamc@311	2094 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2095 if (b == uw_Basis_False)
adamc@281	2096 return "FALSE";
adamc@281	2097 else
adamc@281	2098 return "TRUE";
adamc@281	2099 }
adamc@282	2100
adamc@467	2101 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2102 if (b == NULL)
adamc@467	2103 return "NULL";
adamc@467	2104 else
adamc@467	2105 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2106 }
adamc@467	2107
adamc@439	2108 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2109 size_t len;
adamc@682	2110 char r, s;
adamc@682	2111 struct tm stm;
adamc@682	2112
adamc@682	2113 if (localtime_r(&t, &stm)) {
adamc@682	2114 s = uw_malloc(ctx, TIMES_MAX);
adamc@682	2115 len = strftime(s, TIMES_MAX, TIME_FMT, &stm);
adamc@682	2116 r = uw_malloc(ctx, len + 14);
adamc@682	2117 sprintf(r, "'%s'::timestamp", s);
adamc@682	2118 return r;
adamc@682	2119 } else
adamc@682	2120 return "<Invalid time>";
adamc@682	2121 }
adamc@682	2122
adamc@682	2123 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2124 size_t len;
adamc@439	2125 char *r;
adamc@439	2126 struct tm stm;
adamc@439	2127
adamc@439	2128 if (localtime_r(&t, &stm)) {
adamc@439	2129 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2130 r = ctx->heap.front;
adamc@439	2131 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2132 ctx->heap.front += len+1;
adamc@439	2133 return r;
adamc@439	2134 } else
adamc@439	2135 return "<Invalid time>";
adamc@439	2136 }
adamc@439	2137
adamc@467	2138 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2139 if (t == NULL)
adamc@467	2140 return "NULL";
adamc@467	2141 else
adamc@467	2142 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2143 }
adamc@467	2144
adamc@311	2145 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2146 static uw_Basis_int true = 1;
adamc@311	2147 static uw_Basis_int false = 0;
adamc@282	2148
adamc@311	2149 if (b == uw_Basis_False)
adamc@282	2150 return (char *)&false;
adamc@282	2151 else
adamc@282	2152 return (char *)&true;
adamc@282	2153 }
adamc@284	2154
adamc@311	2155 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2156 int len;
adamc@284	2157 char *r;
adamc@284	2158
adamc@311	2159 uw_check_heap(ctx, INTS_MAX);
adamc@666	2160 r = ctx->heap.front;
adamc@284	2161 sprintf(r, "%lld%n", n, &len);
adamc@666	2162 ctx->heap.front += len+1;
adamc@284	2163 return r;
adamc@284	2164 }
adamc@285	2165
adamc@311	2166 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2167 int len;
adamc@285	2168 char *r;
adamc@285	2169
adamc@311	2170 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2171 r = ctx->heap.front;
adamc@285	2172 sprintf(r, "%g%n", n, &len);
adamc@666	2173 ctx->heap.front += len+1;
adamc@285	2174 return r;
adamc@285	2175 }
adamc@285	2176
adamc@821	2177 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2178 char *r = uw_malloc(ctx, 2);
adamc@821	2179 r[0] = ch;
adamc@821	2180 r[1] = 0;
adamc@821	2181 return r;
adamc@821	2182 }
adamc@821	2183
adamc@311	2184 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2185 if (b == uw_Basis_False)
adamc@285	2186 return "False";
adamc@285	2187 else
adamc@285	2188 return "True";
adamc@285	2189 }
adamc@288	2190
adamc@436	2191 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436	2192 size_t len;
adamc@436	2193 char *r;
adamc@436	2194 struct tm stm;
adamc@436	2195
adamc@436	2196 if (localtime_r(&t, &stm)) {
adamc@436	2197 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2198 r = ctx->heap.front;
adamc@436	2199 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2200 ctx->heap.front += len+1;
adamc@436	2201 return r;
adamc@436	2202 } else
adamc@436	2203 return "<Invalid time>";
adamc@436	2204 }
adamc@288	2205
adamc@311	2206 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2207 char *endptr;
adamc@311	2208 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2209
adamc@288	2210 if (s != '\0' && endptr == '\0') {
adamc@311	2211 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2212 *r = n;
adamc@288	2213 return r;
adamc@288	2214 } else
adamc@288	2215 return NULL;
adamc@288	2216 }
adamc@289	2217
adamc@311	2218 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2219 char *endptr;
adamc@311	2220 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2221
adamc@289	2222 if (s != '\0' && endptr == '\0') {
adamc@311	2223 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2224 *r = n;
adamc@289	2225 return r;
adamc@289	2226 } else
adamc@289	2227 return NULL;
adamc@289	2228 }
adamc@289	2229
adamc@821	2230 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2231 if (s[0] == 0) {
adamc@821	2232 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2233 r[0] = 0;
adamc@821	2234 return r;
adamc@821	2235 } else if (s[1] != 0)
adamc@821	2236 return NULL;
adamc@821	2237 else {
adamc@821	2238 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2239 r[0] = s[0];
adamc@821	2240 return r;
adamc@821	2241 }
adamc@821	2242 }
adamc@821	2243
adamc@311	2244 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2245 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2246 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2247
adamc@289	2248 if (!strcasecmp (s, "True"))
adamc@289	2249 return &true;
adamc@289	2250 else if (!strcasecmp (s, "False"))
adamc@289	2251 return &false;
adamc@289	2252 else
adamc@289	2253 return NULL;
adamc@289	2254 }
adamc@292	2255
adamc@436	2256 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2257 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2258 struct tm stm;
adamc@436	2259
adamc@439	2260 if (dot) {
adamc@439	2261 *dot = 0;
adamc@439	2262 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2263 *dot = '.';
adamc@439	2264 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2265 *r = mktime(&stm);
adamc@439	2266 return r;
adamc@439	2267 }
adamc@439	2268 else {
adamc@439	2269 *dot = '.';
adamc@439	2270 return NULL;
adamc@439	2271 }
adamc@436	2272 }
adamc@439	2273 else {
adamc@439	2274 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2275 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2276 *r = mktime(&stm);
adamc@439	2277 return r;
adamc@439	2278 }
adamc@439	2279 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2280 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2281 *r = mktime(&stm);
adamc@439	2282 return r;
adamc@439	2283 }
adamc@439	2284 else
adamc@439	2285 return NULL;
adamc@439	2286 }
adamc@436	2287 }
adamc@436	2288
adamc@311	2289 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2290 char *endptr;
adamc@311	2291 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2292
adamc@292	2293 if (s != '\0' && endptr == '\0')
adamc@292	2294 return n;
adamc@292	2295 else
adamc@311	2296 uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292	2297 }
adamc@293	2298
adamc@682	2299 #include <errno.h>
adamc@682	2300
adamc@678	2301 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2302 unsigned long long n;
adamc@682	2303
adamc@682	2304 if (sscanf(s, "%llu", &n) < 1)
adamc@682	2305 uw_error(ctx, FATAL, "Can't parse channel: %s", s);
adamc@682	2306 else {
adamc@682	2307 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2308 return ch;
adamc@682	2309 }
adamc@682	2310 }
adamc@682	2311
adamc@682	2312 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2313 char *endptr;
adamc@682	2314 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2315
adamc@678	2316 if (s != '\0' && endptr == '\0')
adamc@678	2317 return n;
adamc@678	2318 else
adamc@682	2319 uw_error(ctx, FATAL, "Can't parse client: %s", s);
adamc@678	2320 }
adamc@678	2321
adamc@311	2322 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2323 char *endptr;
adamc@311	2324 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2325
adamc@293	2326 if (s != '\0' && endptr == '\0')
adamc@293	2327 return n;
adamc@293	2328 else
adamc@311	2329 uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293	2330 }
adamc@293	2331
adamc@821	2332 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2333 if (s[0] == 0)
adamc@821	2334 return 0;
adamc@821	2335 else if (s[1] != 0)
adamc@821	2336 uw_error(ctx, FATAL, "Can't parse char: %s", s);
adamc@821	2337 else
adamc@821	2338 return s[0];
adamc@821	2339 }
adamc@821	2340
adamc@311	2341 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2342 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2343 return uw_Basis_True;
adamc@296	2344 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2345 return uw_Basis_False;
adamc@293	2346 else
adamc@311	2347 uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293	2348 }
adamc@436	2349
adamc@436	2350 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2351 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2352 struct tm stm = {};
adamc@436	2353
adamc@438	2354 if (dot) {
adamc@438	2355 *dot = 0;
adamc@438	2356 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2357 *dot = '.';
adamc@438	2358 return mktime(&stm);
adamc@438	2359 }
adamc@438	2360 else {
adamc@438	2361 *dot = '.';
adamc@438	2362 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2363 }
adamc@438	2364 }
adamc@438	2365 else {
adamc@439	2366 if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439	2367 return mktime(&stm);
adamc@439	2368 else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438	2369 return mktime(&stm);
adamc@438	2370 else
adamc@438	2371 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2372 }
adamc@436	2373 }
adamc@457	2374
adamc@742	2375 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	2376 char *r = ctx->heap.front;
adamc@742	2377 uw_Basis_blob b = {len, r};
adamc@742	2378
adamc@742	2379 uw_check_heap(ctx, len);
adamc@742	2380
adamc@742	2381 while (*s) {
adamc@742	2382 if (s[0] == '\\') {
adamc@742	2383 if (s[1] == '\\') {
adamc@742	2384 *r++ = '\\';
adamc@742	2385 s += 2;
adamc@742	2386 } else if (isdigit(s[1]) && isdigit(s[2]) && isdigit(s[3])) {
adamc@742	2387 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	2388 s += 4;
adamc@742	2389 }
adamc@742	2390 else {
adamc@742	2391 *r++ = '\\';
adamc@742	2392 ++s;
adamc@742	2393 }
adamc@742	2394 } else {
adamc@742	2395 *r++ = s[0];
adamc@742	2396 ++s;
adamc@742	2397 }
adamc@742	2398 }
adamc@742	2399
adamc@742	2400 b.size = r - ctx->heap.front;
adamc@742	2401 ctx->heap.front = r;
adamc@742	2402 return b;
adamc@742	2403 }
adamc@742	2404
adamc@463	2405 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	2406 int len = strlen(c);
adamc@854	2407 char *p = ctx->outHeaders.start;
adamc@474	2408
adamc@474	2409 while (p = strstr(p, "\nSet-Cookie: ")) {
adamc@474	2410 char *p2;
adamc@474	2411 p += 13;
adamc@474	2412 p2 = strchr(p, '=');
adamc@474	2413
adamc@474	2414 if (p2) {
adamc@474	2415 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	2416
adamc@474	2417 if (!strncasecmp(p, c, p2 - p)) {
adamc@474	2418 char *ret = uw_malloc(ctx, sz + 1);
adamc@474	2419 memcpy(ret, p2+1, sz);
adamc@474	2420 ret[sz] = 0;
adamc@474	2421 return ret;
adamc@474	2422 }
adamc@474	2423 }
adamc@474	2424 }
adamc@463	2425
adamc@854	2426 if (p = uw_Basis_requestHeader(ctx, "Cookie")) {
adamc@854	2427 while (1) {
adamc@854	2428 if (!strncmp(p, c, len) && p[len] == '=')
adamc@854	2429 return p + 1 + len;
adamc@854	2430 else if (p = strchr(p, ';'))
adamc@854	2431 p += 2;
adamc@463	2432 else
adamc@463	2433 return NULL;
adamc@463	2434 }
adamc@463	2435 }
adamc@792	2436
adamc@792	2437 return NULL;
adamc@457	2438 }
adamc@462	2439
adamc@466	2440 uw_unit uw_Basis_set_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c, uw_Basis_string v) {
adamc@462	2441 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	2442 uw_write_header(ctx, c);
adamc@462	2443 uw_write_header(ctx, "=");
adamc@462	2444 uw_write_header(ctx, v);
adamc@466	2445 uw_write_header(ctx, "; path=");
adamc@466	2446 uw_write_header(ctx, prefix);
adamc@462	2447 uw_write_header(ctx, "\r\n");
adamc@462	2448
adamc@462	2449 return uw_unit_v;
adamc@462	2450 }
adamc@667	2451
adamc@682	2452 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	2453 unsigned i;
adamc@682	2454 delta *d;
adamc@671	2455
adamc@682	2456 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	2457 if (ctx->deltas[i].client == client)
adamc@682	2458 return &ctx->deltas[i];
adamc@671	2459
adamc@682	2460 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@682	2461 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adamc@682	2462 buf_init(&ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	2463 }
adamc@671	2464
adamc@682	2465 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	2466 d->client = client;
adamc@682	2467 buf_reset(&d->msgs);
adamc@682	2468 return d;
adamc@671	2469 }
adamc@671	2470
adamc@668	2471 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	2472 if (ctx->client == NULL)
adamc@682	2473 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	2474
adamc@682	2475 return new_channel(ctx->client);
adamc@668	2476 }
adamc@668	2477
adamc@668	2478 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	2479 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	2480 size_t len;
adamc@682	2481 int preLen;
adamc@682	2482 char pre[INTS_MAX + 2];
adamc@668	2483
adamc@682	2484 len = strlen(msg);
adamc@682	2485
adamc@682	2486 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	2487
adamc@682	2488 buf_append(&d->msgs, pre, preLen);
adamc@682	2489 buf_append(&d->msgs, msg, len);
adamc@682	2490 buf_append(&d->msgs, "\n", 1);
adamc@671	2491
adamc@671	2492 return uw_unit_v;
adamc@668	2493 }
adamc@671	2494
adamc@671	2495 int uw_db_commit(uw_context);
adamc@671	2496 int uw_db_rollback(uw_context);
adamc@671	2497
adamc@671	2498 void uw_commit(uw_context ctx) {
adamc@682	2499 unsigned i;
adamc@671	2500
adamc@771	2501 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2502 if (ctx->transactionals[i].rollback != NULL)
adamc@771	2503 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771	2504
adamc@771	2505 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2506 if (ctx->transactionals[i].rollback == NULL)
adamc@771	2507 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771	2508
adamc@771	2509 if (uw_db_commit(ctx))
adamc@671	2510 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@682	2511
adamc@682	2512 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	2513 delta *d = &ctx->deltas[i];
adamc@682	2514 client *c = find_client(d->client);
adamc@682	2515
adamc@682	2516 assert (c != NULL && c->mode == USED);
adamc@682	2517
adamc@685	2518 client_send(c, &d->msgs);
adamc@682	2519 }
adamc@682	2520
adamc@682	2521 if (ctx->client)
adamc@685	2522 release_client(ctx->client);
adamc@771	2523
adamc@771	2524 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2525 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@671	2526 }
adamc@671	2527
adamc@671	2528 int uw_rollback(uw_context ctx) {
adamc@771	2529 size_t i;
adamc@771	2530
adamc@682	2531 if (ctx->client)
adamc@685	2532 release_client(ctx->client);
adamc@671	2533
adamc@771	2534 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2535 if (ctx->transactionals[i].rollback != NULL)
adamc@771	2536 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@771	2537
adamc@771	2538 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2539 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@771	2540
adamc@671	2541 return uw_db_rollback(ctx);
adamc@671	2542 }
adamc@683	2543
adamc@771	2544 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adamc@771	2545 uw_callback free) {
adamc@771	2546 if (commit == NULL)
adamc@771	2547 uw_error(ctx, FATAL, "uw_register_transactional: NULL commit callback");
adamc@771	2548
adamc@771	2549 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@771	2550 ctx->transactionals = realloc(ctx->transactionals, ctx->used_transactionals+1);
adamc@771	2551 ++ctx->n_transactionals;
adamc@771	2552 }
adamc@771	2553
adamc@771	2554 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	2555 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	2556 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	2557 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	2558 }
adamc@771	2559
adamc@683	2560
adamc@683	2561 // "Garbage collection"
adamc@683	2562
adamc@683	2563 void uw_expunger(uw_context ctx, uw_Basis_client cli);
adamc@683	2564
adamc@683	2565 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli) {
adamc@683	2566 int r = setjmp(ctx->jmp_buf);
adamc@683	2567
adamc@684	2568 if (r == 0) {
adamc@684	2569 if (uw_db_begin(ctx))
adamc@684	2570 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@683	2571 uw_expunger(ctx, cli);
adamc@684	2572 if (uw_db_commit(ctx))
adamc@684	2573 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@684	2574 }
adamc@683	2575
adamc@683	2576 return r;
adamc@683	2577 }
adamc@683	2578
adamc@683	2579 void uw_prune_clients(uw_context ctx) {
adamc@683	2580 client c, next, *prev = NULL;
adamc@683	2581 time_t cutoff;
adamc@683	2582
adamc@683	2583 cutoff = time(NULL) - uw_timeout;
adamc@683	2584
adamc@683	2585 pthread_mutex_lock(&clients_mutex);
adamc@683	2586
adamc@683	2587 for (c = clients_used; c; c = next) {
adamc@683	2588 next = c->next;
adamc@683	2589 pthread_mutex_lock(&c->lock);
adamc@685	2590 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	2591 failure_kind fk = UNLIMITED_RETRY;
adamc@683	2592 if (prev)
adamc@683	2593 prev->next = next;
adamc@683	2594 else
adamc@683	2595 clients_used = next;
adamc@684	2596 uw_reset(ctx);
adamc@683	2597 while (fk == UNLIMITED_RETRY) {
adamc@683	2598 fk = uw_expunge(ctx, c->id);
adamc@684	2599 if (fk == UNLIMITED_RETRY) {
adamc@684	2600 uw_db_rollback(ctx);
adamc@684	2601 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	2602 }
adamc@683	2603 }
adamc@684	2604 if (fk == SUCCESS)
adamc@684	2605 free_client(c);
adamc@684	2606 else {
adamc@684	2607 uw_db_rollback(ctx);
adamc@856	2608 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@684	2609 }
adamc@683	2610 }
adamc@683	2611 else
adamc@683	2612 prev = c;
adamc@683	2613 pthread_mutex_unlock(&c->lock);
adamc@683	2614 }
adamc@683	2615
adamc@683	2616 pthread_mutex_unlock(&clients_mutex);
adamc@683	2617 }
adamc@687	2618
adamc@687	2619 void uw_initializer(uw_context ctx);
adamc@687	2620
adamc@687	2621 failure_kind uw_initialize(uw_context ctx) {
adamc@687	2622 int r = setjmp(ctx->jmp_buf);
adamc@687	2623
adamc@687	2624 if (r == 0) {
adamc@687	2625 if (uw_db_begin(ctx))
adamc@687	2626 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@687	2627 uw_initializer(ctx);
adamc@687	2628 if (uw_db_commit(ctx))
adamc@687	2629 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	2630 }
adamc@687	2631
adamc@687	2632 return r;
adamc@687	2633 }
adamc@717	2634
adamc@770	2635 extern int uw_check_url(const char *);
adamc@770	2636 extern int uw_check_mime(const char *);
adamc@770	2637
adamc@717	2638 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@770	2639 if (uw_check_url(s))
adamc@770	2640 return s;
adamc@770	2641 else
adamc@770	2642 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	2643 }
adamc@734	2644
adamc@770	2645 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@770	2646 if (uw_check_url(s))
adamc@770	2647 return s;
adamc@770	2648 else
adamc@770	2649 return NULL;
adamc@770	2650 }
adamc@770	2651
adamc@770	2652 int mime_format(const char *s) {
adamc@770	2653 for (; *s; ++s)
adamc@770	2654 if (!isalnum(s) && s != '/' && s != '-' && s != '.')
adamc@770	2655 return 0;
adamc@770	2656
adamc@770	2657 return 1;
adamc@770	2658 }
adamc@770	2659
adamc@741	2660 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	2661 if (!mime_format(s))
adamc@770	2662 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	2663
adamc@770	2664 if (uw_check_mime(s))
adamc@770	2665 return s;
adamc@770	2666 else
adamc@770	2667 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	2668 }
adamc@770	2669
adamc@770	2670 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	2671 if (!mime_format(s))
adamc@770	2672 return NULL;
adamc@770	2673
adamc@770	2674 if (uw_check_mime(s))
adamc@770	2675 return s;
adamc@770	2676 else
adamc@770	2677 return NULL;
adamc@741	2678 }
adamc@741	2679
adamc@734	2680 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	2681 return s ? s : "";
adamc@734	2682 }
adamc@734	2683
adamc@734	2684 extern int uw_hash_blocksize;
adamc@734	2685
adamc@734	2686 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	2687 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	2688 int i;
adamc@734	2689
adamc@734	2690 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	2691 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	2692
adamc@734	2693 return r;
adamc@734	2694 }
adamc@734	2695
adamc@734	2696 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@734	2697 return uw_cookie_sig(ctx);
adamc@734	2698 }
adamc@737	2699
adamc@737	2700 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	2701 return f.name;
adamc@737	2702 }
adamc@737	2703
adamc@740	2704 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	2705 return f.type;
adamc@740	2706 }
adamc@740	2707
adamc@745	2708 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	2709 return b.size;
adamc@745	2710 }
adamc@745	2711
adamc@737	2712 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	2713 return f.data;
adamc@737	2714 }
adamc@741	2715
adamc@741	2716 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	2717 cleanup *cl;
adamc@741	2718 int len;
adamc@741	2719
adamc@741	2720 buf_reset(&ctx->outHeaders);
adamc@741	2721 buf_reset(&ctx->page);
adamc@741	2722
adamc@856	2723 uw_write_header(ctx, on_success);
adamc@856	2724 uw_write_header(ctx, "Content-Type: ");
adamc@741	2725 uw_write_header(ctx, mimeType);
adamc@741	2726 uw_write_header(ctx, "\r\nContent-Length: ");
adamc@741	2727 buf_check(&ctx->outHeaders, INTS_MAX);
adamc@741	2728 sprintf(ctx->outHeaders.front, "%d%n", b.size, &len);
adamc@741	2729 ctx->outHeaders.front += len;
adamc@741	2730 uw_write_header(ctx, "\r\n");
adamc@741	2731
adamc@741	2732 buf_append(&ctx->page, b.data, b.size);
adamc@741	2733
adamc@741	2734 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	2735 cl->func(cl->arg);
adamc@741	2736
adamc@741	2737 ctx->cleanup_front = ctx->cleanup;
adamc@741	2738
adamc@741	2739 longjmp(ctx->jmp_buf, RETURN_BLOB);
adamc@741	2740 }

Mercurial > urweb

annotate src/c/urweb.c @ 864:6304f5e8fbb4