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

annotate src/c/urweb.c @ 759:67cd8326f743

subforms working

author	Adam Chlipala <adamc@hcoop.net>
date	Thu, 30 Apr 2009 13:47:46 -0400
parents	8ce31c052dce
children	21f6d2e65685

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

Mercurial > urweb

annotate src/c/urweb.c @ 759:67cd8326f743