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

annotate src/c/urweb.c @ 854:158d980889ac

Further refactoring of request.c to work with CGI

author	Adam Chlipala <adamc@hcoop.net>
date	Tue, 23 Jun 2009 15:40:35 -0400
parents	74a1e3bdf430
children	86ec89baee01

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

Mercurial > urweb

annotate src/c/urweb.c @ 854:158d980889ac