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

annotate src/c/urweb.c @ 770:c125df6fabfc

Runtime URL and MIME type filtering

author	Adam Chlipala <adamc@hcoop.net>
date	Sat, 02 May 2009 18:20:15 -0400
parents	21f6d2e65685
children	eac1974924bb

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@760	594 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	595 }
adamc@759	596
adamc@760	597 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	598 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	599 *ptr += new_start - old_start;
adamc@760	600 }
adamc@760	601
adamc@760	602 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	603 switch (x->kind) {
adamc@759	604 case SUBFORM:
adamc@760	605 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	606 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	607 break;
adamc@759	608 case SUBFORMS:
adamc@760	609 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	610 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	611 break;
adamc@759	612 case ENTRY:
adamc@760	613 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	614 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	615 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
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@760	627 if (ctx->subinputs != new_subinputs) {
adamc@760	628 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	629 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	630 for (i = 0; i < uw_inputs_len; ++i)
adamc@760	631 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	632
adamc@760	633 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	634
adamc@760	635 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	636 ctx->subinputs = new_subinputs;
adamc@760	637 }
adamc@759	638 }
adamc@759	639
adamc@759	640 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	641
adamc@759	642 for (i = 0; i < len; ++i)
adamc@759	643 ctx->subinputs[ctx->used_subinputs++].kind = UNUSED;
adamc@759	644
adamc@759	645 return r;
adamc@759	646 }
adamc@756	647
adamc@737	648 void uw_set_input(uw_context ctx, const char name, char value) {
adamc@756	649 if (!strcasecmp(name, ".b")) {
adamc@756	650 int n = uw_input_num(value);
adamc@756	651 input *inps;
adamc@756	652
adamc@756	653 if (n < 0)
adamc@756	654 uw_error(ctx, FATAL, "Bad subform name %s", value);
adamc@756	655
adamc@756	656 if (n >= uw_inputs_len)
adamc@756	657 uw_error(ctx, FATAL, "For subform name %s, index %d is out of range", value, n);
adamc@756	658
adamc@759	659 inps = check_input_space(ctx, uw_inputs_len);
adamc@759	660
adamc@759	661 INP(ctx)[n].kind = SUBFORM;
adamc@759	662 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	663 INP(ctx)[n].data.subform.fields = inps;
adamc@759	664 ctx->cur_container = &INP(ctx)[n];
adamc@756	665 } else if (!strcasecmp(name, ".e")) {
adamc@756	666 input *tmp;
adamc@756	667
adamc@759	668 if (ctx->cur_container == NULL)
adamc@756	669 uw_error(ctx, FATAL, "Unmatched subform closer");
adamc@756	670
adamc@759	671 tmp = ctx->cur_container;
adamc@759	672 switch (tmp->kind) {
adamc@759	673 case SUBFORM:
adamc@759	674 ctx->cur_container = tmp->data.subform.parent;
adamc@759	675 tmp->data.subform.parent = NULL;
adamc@759	676 break;
adamc@759	677 case SUBFORMS:
adamc@759	678 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	679 tmp->data.subforms.parent = NULL;
adamc@759	680 break;
adamc@759	681 case ENTRY:
adamc@759	682 ctx->cur_container = tmp->data.entry.parent;
adamc@759	683 break;
adamc@759	684 default:
adamc@759	685 uw_error(ctx, FATAL, "uw_set_input: Wrong kind");
adamc@759	686 }
adamc@759	687 } else if (!strcasecmp(name, ".s")) {
adamc@759	688 int n = uw_input_num(value);
adamc@759	689
adamc@759	690 if (n < 0)
adamc@759	691 uw_error(ctx, FATAL, "Bad subforms name %s", value);
adamc@759	692
adamc@759	693 if (n >= uw_inputs_len)
adamc@759	694 uw_error(ctx, FATAL, "For subforms name %s, index %d is out of range", value, n);
adamc@759	695
adamc@759	696 INP(ctx)[n].kind = SUBFORMS;
adamc@759	697 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	698 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	699 ctx->cur_container = &INP(ctx)[n];
adamc@759	700 } else if (!strcasecmp(name, ".i")) {
adamc@759	701 input *inps;
adamc@759	702
adamc@759	703 if (!ctx->cur_container)
adamc@759	704 uw_error(ctx, FATAL, "New entry without container");
adamc@759	705
adamc@759	706 if (ctx->cur_container->kind != SUBFORMS)
adamc@759	707 uw_error(ctx, FATAL, "Bad kind for entry parent");
adamc@759	708
adamc@759	709 inps = check_input_space(ctx, uw_inputs_len + 1);
adamc@759	710
adamc@759	711 inps->kind = ENTRY;
adamc@759	712 inps->data.entry.parent = ctx->cur_container;
adamc@759	713 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	714 ctx->cur_container->data.subforms.entries = inps;
adamc@759	715
adamc@759	716 inps->data.entry.fields = inps+1;
adamc@759	717 ctx->cur_container = inps;
adamc@756	718 } else {
adamc@756	719 int n = uw_input_num(name);
adamc@756	720
adamc@756	721 if (n < 0)
adamc@756	722 uw_error(ctx, FATAL, "Bad input name %s", name);
adamc@756	723
adamc@756	724 if (n >= uw_inputs_len)
adamc@756	725 uw_error(ctx, FATAL, "For input name %s, index %d is out of range", name, n);
adamc@756	726
adamc@756	727 INP(ctx)[n].kind = NORMAL;
adamc@756	728 INP(ctx)[n].data.normal = value;
adamc@756	729 }
adamc@144	730 }
adamc@144	731
adamc@311	732 char *uw_get_input(uw_context ctx, int n) {
adamc@169	733 if (n < 0)
adamc@311	734 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311	735 if (n >= uw_inputs_len)
adamc@311	736 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	737
adamc@756	738 switch (INP(ctx)[n].kind) {
adamc@737	739 case UNSET:
adamc@737	740 return NULL;
adamc@739	741 case FIL:
adamc@739	742 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	743 case SUBFORM:
adamc@756	744 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	745 case SUBFORMS:
adamc@759	746 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	747 case ENTRY:
adamc@759	748 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	749 case NORMAL:
adamc@756	750 return INP(ctx)[n].data.normal;
adamc@737	751 default:
adamc@737	752 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	753 }
adamc@138	754 }
adamc@138	755
adamc@311	756 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	757 if (n < 0)
adamc@311	758 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311	759 if (n >= uw_inputs_len)
adamc@311	760 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	761
adamc@756	762 switch (INP(ctx)[n].kind) {
adamc@737	763 case UNSET:
adamc@737	764 return "";
adamc@739	765 case FIL:
adamc@739	766 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	767 case SUBFORM:
adamc@756	768 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	769 case SUBFORMS:
adamc@759	770 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	771 case ENTRY:
adamc@759	772 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	773 case NORMAL:
adamc@756	774 return INP(ctx)[n].data.normal;
adamc@737	775 default:
adamc@737	776 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	777 }
adamc@737	778 }
adamc@737	779
adamc@739	780 void uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@737	781 int n = uw_input_num(name);
adamc@737	782
adamc@737	783 if (n < 0)
adamc@737	784 uw_error(ctx, FATAL, "Bad file input name %s", name);
adamc@737	785
adamc@737	786 if (n >= uw_inputs_len)
adamc@737	787 uw_error(ctx, FATAL, "For file input name %s, index %d is out of range", name, n);
adamc@737	788
adamc@739	789 ctx->inputs[n].kind = FIL;
adamc@739	790 ctx->inputs[n].data.file = f;
adamc@737	791 }
adamc@737	792
adamc@739	793 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	794
adamc@760	795
adamc@760	796 static void parents(input *inp) {
adamc@760	797 printf("Stack: %p\n", inp);
adamc@760	798 while (inp) {
adamc@760	799 switch (inp->kind) {
adamc@760	800 case NORMAL:
adamc@760	801 printf("Normal(%p)\n", inp);
adamc@760	802 break;
adamc@760	803 case FIL:
adamc@760	804 printf("File(%p)\n", inp);
adamc@760	805 break;
adamc@760	806 case SUBFORM:
adamc@760	807 printf("Subform; fields = %p\n", inp->data.subform.fields);
adamc@760	808 inp = inp->data.subform.parent;
adamc@760	809 break;
adamc@760	810 case SUBFORMS:
adamc@760	811 printf("Subforms; entries = %p\n", inp->data.subforms.entries);
adamc@760	812 inp = inp->data.subforms.parent;
adamc@760	813 break;
adamc@760	814 case ENTRY:
adamc@760	815 printf("Entry; fields = %p; next = %p\n", inp->data.entry.fields, inp->data.entry.next);
adamc@760	816 inp = inp->data.entry.parent;
adamc@760	817 break;
adamc@760	818 default:
adamc@760	819 inp = NULL;
adamc@760	820 }
adamc@760	821 }
adamc@760	822 }
adamc@760	823
adamc@739	824 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	825 if (n < 0)
adamc@737	826 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@737	827 if (n >= uw_inputs_len)
adamc@737	828 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	829
adamc@756	830 switch (INP(ctx)[n].kind) {
adamc@737	831 case UNSET:
adamc@737	832 {
adamc@739	833 char *data = uw_malloc(ctx, 0);
adamc@740	834 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	835 return f;
adamc@737	836 }
adamc@739	837 case FIL:
adamc@756	838 return INP(ctx)[n].data.file;
adamc@737	839 case NORMAL:
adamc@737	840 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	841 case SUBFORM:
adamc@756	842 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	843 case SUBFORMS:
adamc@759	844 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	845 case ENTRY:
adamc@759	846 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	847 default:
adamc@737	848 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	849 }
adamc@190	850 }
adamc@190	851
adamc@756	852 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	853 if (n < 0)
adamc@756	854 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@756	855 if (n >= uw_inputs_len)
adamc@756	856 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	857
adamc@756	858 switch (INP(ctx)[n].kind) {
adamc@756	859 case UNSET:
adamc@756	860 uw_error(ctx, FATAL, "Missing subform");
adamc@756	861 case FIL:
adamc@756	862 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	863 case NORMAL:
adamc@756	864 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	865 case SUBFORMS:
adamc@759	866 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	867 case ENTRY:
adamc@759	868 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	869 case SUBFORM:
adamc@759	870 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	871 ctx->cur_container = &INP(ctx)[n];
adamc@756	872 return;
adamc@756	873 default:
adamc@756	874 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	875 }
adamc@756	876 }
adamc@756	877
adamc@756	878 void uw_leave_subform(uw_context ctx) {
adamc@756	879 input *tmp;
adamc@756	880
adamc@759	881 if (ctx->cur_container == NULL)
adamc@756	882 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	883
adamc@759	884 tmp = ctx->cur_container;
adamc@759	885 ctx->cur_container = tmp->data.subform.parent;
adamc@759	886 tmp->data.subform.parent = NULL;
adamc@759	887 }
adamc@759	888
adamc@759	889 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	890 input *inps;
adamc@759	891
adamc@759	892 if (n < 0)
adamc@759	893 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@759	894 if (n >= uw_inputs_len)
adamc@759	895 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	896
adamc@759	897 switch (INP(ctx)[n].kind) {
adamc@759	898 case UNSET:
adamc@759	899 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	900 case FIL:
adamc@759	901 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	902 case NORMAL:
adamc@759	903 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	904 case SUBFORM:
adamc@759	905 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	906 case ENTRY:
adamc@759	907 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	908 case SUBFORMS:
adamc@759	909 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	910 if (inps) {
adamc@759	911 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	912 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	913 return 1;
adamc@759	914 } else
adamc@759	915 return 0;
adamc@759	916 default:
adamc@759	917 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	918 }
adamc@759	919 }
adamc@759	920
adamc@759	921 int uw_next_entry(uw_context ctx) {
adamc@759	922 if (ctx->cur_container == NULL)
adamc@759	923 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	924
adamc@759	925 switch (ctx->cur_container->kind) {
adamc@759	926 case UNSET:
adamc@759	927 uw_error(ctx, FATAL, "Missing entry");
adamc@759	928 case FIL:
adamc@759	929 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	930 case NORMAL:
adamc@759	931 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	932 case SUBFORM:
adamc@759	933 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	934 case SUBFORMS:
adamc@759	935 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	936 case ENTRY:
adamc@759	937 if (ctx->cur_container->data.entry.next) {
adamc@759	938 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	939 return 1;
adamc@759	940 } else {
adamc@759	941 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	942 return 0;
adamc@759	943 }
adamc@759	944 default:
adamc@759	945 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	946 }
adamc@756	947 }
adamc@756	948
adamc@643	949 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	950 ctx->script_header = s;
adamc@643	951 }
adamc@643	952
adamc@667	953 void uw_set_url_prefix(uw_context ctx, const char *s) {
adamc@667	954 ctx->url_prefix = s;
adamc@667	955 }
adamc@667	956
adamc@693	957 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	958 ctx->needs_push = n;
adamc@693	959 }
adamc@693	960
adamc@736	961 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	962 ctx->needs_sig = n;
adamc@736	963 }
adamc@736	964
adamc@667	965
adamc@667	966 static void buf_check_ctx(uw_context ctx, buf b, size_t extra, const char desc) {
adamc@666	967 if (b->back - b->front < extra) {
adamc@666	968 size_t desired = b->front - b->start + extra, next;
adamc@136	969 char *new_heap;
adamc@136	970
adamc@666	971 next = b->back - b->start;
adamc@317	972 if (next == 0)
adamc@317	973 next = 1;
adamc@317	974 for (; next < desired; next *= 2);
adamc@136	975
adamc@666	976 new_heap = realloc(b->start, next);
adamc@666	977 b->front = new_heap + (b->front - b->start);
adamc@666	978 b->back = new_heap + next;
adamc@136	979
adamc@667	980 if (new_heap != b->start) {
adamc@666	981 b->start = new_heap;
adamc@666	982 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously", desc);
adamc@136	983 }
adamc@136	984
adamc@666	985 b->start = new_heap;
adamc@136	986 }
adamc@136	987 }
adamc@136	988
adamc@666	989 static void uw_check_heap(uw_context ctx, size_t extra) {
adamc@667	990 buf_check_ctx(ctx, &ctx->heap, extra, "heap chunk");
adamc@666	991 }
adamc@666	992
adamc@311	993 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136	994 void *result;
adamc@136	995
adamc@311	996 uw_check_heap(ctx, len);
adamc@136	997
adamc@666	998 result = ctx->heap.front;
adamc@666	999 ctx->heap.front += len;
adamc@136	1000 return result;
adamc@117	1001 }
adamc@117	1002
adamc@323	1003 void uw_begin_region(uw_context ctx) {
adamc@666	1004 regions r = (regions ) ctx->heap.front;
adamc@323	1005
adamc@323	1006 uw_check_heap(ctx, sizeof(regions));
adamc@323	1007
adamc@666	1008 ctx->heap.front += sizeof(regions);
adamc@323	1009
adamc@323	1010 r->next = ctx->regions;
adamc@323	1011 ctx->regions = r;
adamc@323	1012 }
adamc@323	1013
adamc@323	1014 void uw_end_region(uw_context ctx) {
adamc@323	1015 regions *r = ctx->regions;
adamc@323	1016
adamc@323	1017 if (r == NULL)
adamc@323	1018 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1019
adamc@666	1020 ctx->heap.front = (char *) r;
adamc@323	1021 ctx->regions = r->next;
adamc@323	1022 }
adamc@323	1023
adamc@324	1024 void uw_memstats(uw_context ctx) {
adamc@666	1025 printf("Headers: %d/%d\n", buf_used(&ctx->outHeaders), buf_avail(&ctx->outHeaders));
adamc@666	1026 printf("Script: %d/%d\n", buf_used(&ctx->script), buf_avail(&ctx->script));
adamc@666	1027 printf("Page: %d/%d\n", buf_used(&ctx->page), buf_avail(&ctx->page));
adamc@666	1028 printf("Heap: %d/%d\n", buf_used(&ctx->heap), buf_avail(&ctx->heap));
adamc@324	1029 }
adamc@324	1030
adamc@311	1031 int uw_send(uw_context ctx, int sock) {
adamc@666	1032 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462	1033
adamc@462	1034 if (n < 0)
adamc@462	1035 return n;
adamc@462	1036
adamc@462	1037 n = uw_really_send(sock, "\r\n", 2);
adamc@462	1038
adamc@462	1039 if (n < 0)
adamc@462	1040 return n;
adamc@462	1041
adamc@666	1042 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462	1043 }
adamc@462	1044
adamc@462	1045 static void uw_check_headers(uw_context ctx, size_t extra) {
adamc@667	1046 buf_check(&ctx->outHeaders, extra);
adamc@462	1047 }
adamc@462	1048
adamc@462	1049 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1050 int len = strlen(s);
adamc@462	1051
adamc@462	1052 uw_check_headers(ctx, len + 1);
adamc@666	1053 strcpy(ctx->outHeaders.front, s);
adamc@666	1054 ctx->outHeaders.front += len;
adamc@562	1055 }
adamc@562	1056
adamc@562	1057 static void uw_check_script(uw_context ctx, size_t extra) {
adamc@667	1058 buf_check(&ctx->script, extra);
adamc@562	1059 }
adamc@562	1060
adamc@562	1061 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1062 int len = strlen(s);
adamc@562	1063
adamc@562	1064 uw_check_script(ctx, len + 1);
adamc@666	1065 strcpy(ctx->script.front, s);
adamc@666	1066 ctx->script.front += len;
adamc@562	1067 }
adamc@562	1068
adamc@645	1069 const char *uw_Basis_get_script(uw_context ctx, uw_unit u) {
adamc@667	1070 if (ctx->script_header[0] == 0)
adamc@667	1071 return "";
adamc@696	1072 else if (buf_used(&ctx->script) == 0)
adamc@696	1073 return ctx->script_header;
adamc@667	1074 else {
adamc@695	1075 char *r = uw_malloc(ctx, strlen(ctx->script_header) + 42 + buf_used(&ctx->script));
adamc@695	1076 sprintf(r, "%s<script type=\"text/javascript\">%s</script>",
adamc@673	1077 ctx->script_header,
adamc@673	1078 ctx->script.start);
adamc@565	1079 return r;
adamc@565	1080 }
adamc@565	1081 }
adamc@565	1082
adamc@695	1083 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1084 if (s[0] == 0)
adamc@695	1085 return "";
adamc@695	1086 else {
adamc@695	1087 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1088 sprintf(r, " onload='%s'", s);
adamc@695	1089 return r;
adamc@695	1090 }
adamc@695	1091 }
adamc@695	1092
adamc@736	1093 extern uw_Basis_string uw_cookie_sig(uw_context);
adamc@736	1094
adamc@694	1095 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1096 if (ctx->client == NULL) {
adamc@736	1097 if (ctx->needs_sig) {
adamc@736	1098 char *sig = uw_cookie_sig(ctx);
adamc@736	1099 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1100 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1101 return r;
adamc@736	1102 }
adamc@736	1103 else
adamc@736	1104 return "";
adamc@736	1105 } else {
adamc@736	1106 char *sig = ctx->needs_sig ? uw_cookie_sig(ctx) : "";
adamc@736	1107 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->url_prefix)
adamc@736	1108 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adamc@736	1109 sprintf(r, "client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adamc@682	1110 ctx->client->id,
adamc@682	1111 ctx->client->pass,
adamc@679	1112 ctx->url_prefix,
adamc@736	1113 ctx->timeout,
adamc@736	1114 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1115 sig,
adamc@736	1116 ctx->needs_sig ? "\";" : "");
adamc@679	1117 return r;
adamc@668	1118 }
adamc@667	1119 }
adamc@667	1120
adamc@574	1121 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1122 char r, s2;
adamc@574	1123
adamc@574	1124 uw_check_heap(ctx, strlen(s) * 4 + 2);
adamc@574	1125
adamc@666	1126 r = s2 = ctx->heap.front;
adamc@574	1127 *s2++ = '"';
adamc@574	1128
adamc@574	1129 for (; *s; s++) {
adamc@574	1130 char c = *s;
adamc@574	1131
adamc@574	1132 switch (c) {
adamc@574	1133 case '"':
adamc@574	1134 strcpy(s2, "\\\"");
adamc@574	1135 s2 += 2;
adamc@574	1136 break;
adamc@574	1137 case '\\':
adamc@574	1138 strcpy(s2, "\\\\");
adamc@574	1139 s2 += 2;
adamc@574	1140 break;
adamc@574	1141 default:
adamc@574	1142 if (isprint(c))
adamc@574	1143 *s2++ = c;
adamc@574	1144 else {
adamc@574	1145 sprintf(s2, "\\%3o", c);
adamc@574	1146 s2 += 4;
adamc@574	1147 }
adamc@574	1148 }
adamc@574	1149 }
adamc@574	1150
adamc@574	1151 strcpy(s2, "\"");
adamc@666	1152 ctx->heap.front = s2 + 1;
adamc@574	1153 return r;
adamc@574	1154 }
adamc@574	1155
adamc@574	1156 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1157 char r, s2;
adamc@574	1158
adamc@574	1159 uw_check_script(ctx, strlen(s) * 4 + 2);
adamc@574	1160
adamc@666	1161 r = s2 = ctx->script.front;
adamc@574	1162 *s2++ = '"';
adamc@574	1163
adamc@574	1164 for (; *s; s++) {
adamc@574	1165 char c = *s;
adamc@574	1166
adamc@574	1167 switch (c) {
adamc@577	1168 case '\'':
adamc@574	1169 strcpy(s2, "\\\"");
adamc@574	1170 s2 += 2;
adamc@574	1171 break;
adamc@574	1172 case '\\':
adamc@574	1173 strcpy(s2, "\\\\");
adamc@574	1174 s2 += 2;
adamc@574	1175 break;
adamc@574	1176 default:
adamc@574	1177 if (isprint(c))
adamc@574	1178 *s2++ = c;
adamc@574	1179 else {
adamc@574	1180 sprintf(s2, "\\%3o", c);
adamc@574	1181 s2 += 4;
adamc@574	1182 }
adamc@574	1183 }
adamc@574	1184 }
adamc@574	1185
adamc@574	1186 strcpy(s2, "\"");
adamc@666	1187 ctx->script.front = s2 + 1;
adamc@574	1188 return r;
adamc@574	1189 }
adamc@574	1190
adamc@682	1191 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1192 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1193 return "null";
adamc@682	1194 else {
adamc@682	1195 int len;
adamc@682	1196 char *r;
adamc@682	1197
adamc@682	1198 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1199 r = ctx->heap.front;
adamc@682	1200 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1201 ctx->heap.front += len+1;
adamc@682	1202 return r;
adamc@682	1203 }
adamc@682	1204 }
adamc@682	1205
adamc@577	1206 uw_Basis_int uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1207 int len;
adamc@577	1208 size_t s_len = strlen(s);
adamc@562	1209
adamc@577	1210 uw_check_script(ctx, 12 + INTS_MAX + s_len);
adamc@666	1211 sprintf(ctx->script.front, "var s%d=sc(%n", ctx->source_count, &len);
adamc@666	1212 ctx->script.front += len;
adamc@666	1213 strcpy(ctx->script.front, s);
adamc@666	1214 ctx->script.front += s_len;
adamc@666	1215 strcpy(ctx->script.front, ");");
adamc@666	1216 ctx->script.front += 2;
adamc@562	1217
adamc@565	1218 return ctx->source_count++;
adamc@117	1219 }
adamc@117	1220
adamc@577	1221 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_int n, uw_Basis_string s) {
adamc@577	1222 int len;
adamc@577	1223 size_t s_len = strlen(s);
adamc@577	1224
adamc@577	1225 uw_check_script(ctx, 6 + INTS_MAX + s_len);
adamc@666	1226 sprintf(ctx->script.front, "s%d.v=%n", (int)n, &len);
adamc@666	1227 ctx->script.front += len;
adamc@666	1228 strcpy(ctx->script.front, s);
adamc@666	1229 ctx->script.front += s_len;
adamc@666	1230 strcpy(ctx->script.front, ";");
adamc@666	1231 ctx->script.front++;
adamc@577	1232
adamc@577	1233 return uw_unit_v;
adamc@577	1234 }
adamc@577	1235
adamc@311	1236 static void uw_check(uw_context ctx, size_t extra) {
adamc@667	1237 buf_check(&ctx->page, extra);
adamc@117	1238 }
adamc@117	1239
adamc@311	1240 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1241 *(ctx->page.front)++ = c;
adamc@117	1242 }
adamc@117	1243
adamc@311	1244 void uw_writec(uw_context ctx, char c) {
adamc@311	1245 uw_check(ctx, 1);
adamc@311	1246 uw_writec_unsafe(ctx, c);
adamc@117	1247 }
adamc@117	1248
adamc@311	1249 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1250 int len = strlen(s);
adamc@666	1251 memcpy(ctx->page.front, s, len);
adamc@666	1252 ctx->page.front += len;
adamc@117	1253 }
adamc@117	1254
adamc@311	1255 void uw_write(uw_context ctx, const char* s) {
adamc@311	1256 uw_check(ctx, strlen(s) + 1);
adamc@311	1257 uw_write_unsafe(ctx, s);
adamc@666	1258 *ctx->page.front = 0;
adamc@102	1259 }
adamc@106	1260
adamc@311	1261 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1262 char *result;
adamc@136	1263 int len;
adamc@311	1264 uw_check_heap(ctx, INTS_MAX);
adamc@666	1265 result = ctx->heap.front;
adamc@276	1266 sprintf(result, "%lld%n", n, &len);
adamc@666	1267 ctx->heap.front += len+1;
adamc@136	1268 return result;
adamc@106	1269 }
adamc@106	1270
adamc@311	1271 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1272 char *result;
adamc@136	1273 int len;
adamc@311	1274 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1275 result = ctx->heap.front;
adamc@136	1276 sprintf(result, "%g%n", n, &len);
adamc@666	1277 ctx->heap.front += len+1;
adamc@136	1278 return result;
adamc@106	1279 }
adamc@106	1280
adamc@311	1281 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1282 int len = strlen(s);
adamc@136	1283 char result, p;
adamc@311	1284 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1285
adamc@666	1286 result = p = ctx->heap.front;
adamc@136	1287
adamc@136	1288 for (; *s; s++) {
adamc@136	1289 char c = *s;
adamc@136	1290
adamc@136	1291 if (c == '"') {
adamc@136	1292 strcpy(p, """);
adamc@136	1293 p += 6;
adamc@136	1294 } else if (c == '&') {
adamc@136	1295 strcpy(p, "&");
adamc@136	1296 p += 5;
adamc@136	1297 }
adamc@136	1298 else if (isprint(c))
adamc@136	1299 *p++ = c;
adamc@136	1300 else {
adamc@136	1301 int len2;
adamc@136	1302 sprintf(p, "&#%d;%n", c, &len2);
adamc@136	1303 p += len2;
adamc@136	1304 }
adamc@136	1305 }
adamc@136	1306
adamc@137	1307 *p++ = 0;
adamc@666	1308 ctx->heap.front = p;
adamc@136	1309 return result;
adamc@106	1310 }
adamc@106	1311
adamc@721	1312 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1313 return s;
adamc@721	1314 }
adamc@721	1315
adamc@311	1316 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1317 int len;
adamc@117	1318
adamc@666	1319 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1320 ctx->page.front += len;
adamc@106	1321 }
adamc@106	1322
adamc@428	1323 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1324 uw_check(ctx, INTS_MAX);
adamc@311	1325 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1326
adamc@428	1327 return uw_unit_v;
adamc@106	1328 }
adamc@106	1329
adamc@428	1330 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1331 int len;
adamc@117	1332
adamc@311	1333 uw_check(ctx, FLOATS_MAX);
adamc@666	1334 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1335 ctx->page.front += len;
adamc@428	1336
adamc@428	1337 return uw_unit_v;
adamc@117	1338 }
adamc@117	1339
adamc@428	1340 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1341 uw_check(ctx, strlen(s) * 6);
adamc@117	1342
adamc@106	1343 for (; *s; s++) {
adamc@106	1344 char c = *s;
adamc@106	1345
adamc@106	1346 if (c == '"')
adamc@311	1347 uw_write_unsafe(ctx, """);
adamc@136	1348 else if (c == '&')
adamc@311	1349 uw_write_unsafe(ctx, "&");
adamc@106	1350 else if (isprint(c))
adamc@311	1351 uw_writec_unsafe(ctx, c);
adamc@106	1352 else {
adamc@311	1353 uw_write_unsafe(ctx, "&#");
adamc@311	1354 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311	1355 uw_writec_unsafe(ctx, ';');
adamc@106	1356 }
adamc@106	1357 }
adamc@428	1358
adamc@428	1359 return uw_unit_v;
adamc@106	1360 }
adamc@120	1361
adamc@120	1362
adamc@311	1363 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1364 int len;
adamc@137	1365 char *r;
adamc@137	1366
adamc@311	1367 uw_check_heap(ctx, INTS_MAX);
adamc@666	1368 r = ctx->heap.front;
adamc@276	1369 sprintf(r, "%lld%n", n, &len);
adamc@666	1370 ctx->heap.front += len+1;
adamc@137	1371 return r;
adamc@120	1372 }
adamc@120	1373
adamc@682	1374 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1375 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1376 return "";
adamc@682	1377 else {
adamc@682	1378 int len;
adamc@682	1379 char *r;
adamc@679	1380
adamc@682	1381 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1382 r = ctx->heap.front;
adamc@682	1383 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1384 ctx->heap.front += len+1;
adamc@682	1385 return r;
adamc@682	1386 }
adamc@679	1387 }
adamc@679	1388
adamc@311	1389 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1390 int len;
adamc@137	1391 char *r;
adamc@137	1392
adamc@311	1393 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1394 r = ctx->heap.front;
adamc@137	1395 sprintf(r, "%g%n", n, &len);
adamc@666	1396 ctx->heap.front += len+1;
adamc@137	1397 return r;
adamc@120	1398 }
adamc@120	1399
adamc@311	1400 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1401 char r, p;
adamc@137	1402
adamc@311	1403 uw_check_heap(ctx, strlen(s) * 3 + 1);
adamc@137	1404
adamc@666	1405 for (r = p = ctx->heap.front; *s; s++) {
adamc@137	1406 char c = *s;
adamc@137	1407
adamc@137	1408 if (c == ' ')
adamc@137	1409 *p++ = '+';
adamc@137	1410 else if (isalnum(c))
adamc@137	1411 *p++ = c;
adamc@137	1412 else {
adamc@137	1413 sprintf(p, "%%%02X", c);
adamc@137	1414 p += 3;
adamc@137	1415 }
adamc@137	1416 }
adamc@137	1417
adamc@137	1418 *p++ = 0;
adamc@666	1419 ctx->heap.front = p;
adamc@137	1420 return r;
adamc@120	1421 }
adamc@120	1422
adamc@311	1423 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1424 if (b == uw_Basis_False)
adamc@186	1425 return "0";
adamc@186	1426 else
adamc@186	1427 return "1";
adamc@186	1428 }
adamc@186	1429
adamc@311	1430 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1431 int len;
adamc@120	1432
adamc@666	1433 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1434 ctx->page.front += len;
adamc@120	1435 }
adamc@120	1436
adamc@428	1437 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1438 uw_check(ctx, INTS_MAX);
adamc@311	1439 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1440
adamc@428	1441 return uw_unit_v;
adamc@120	1442 }
adamc@120	1443
adamc@682	1444 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1445 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1446 int len;
adamc@682	1447
adamc@682	1448 uw_check(ctx, INTS_MAX + 1);
adamc@682	1449 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1450 ctx->page.front += len;
adamc@682	1451 }
adamc@682	1452
adamc@679	1453 return uw_unit_v;
adamc@679	1454 }
adamc@679	1455
adamc@428	1456 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1457 int len;
adamc@120	1458
adamc@311	1459 uw_check(ctx, FLOATS_MAX);
adamc@666	1460 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1461 ctx->page.front += len;
adamc@428	1462
adamc@428	1463 return uw_unit_v;
adamc@120	1464 }
adamc@120	1465
adamc@488	1466 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@488	1467 return uw_Basis_urlifyInt(ctx, t);
adamc@488	1468 }
adamc@488	1469
adamc@428	1470 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1471 uw_check(ctx, strlen(s) * 3);
adamc@120	1472
adamc@120	1473 for (; *s; s++) {
adamc@120	1474 char c = *s;
adamc@120	1475
adamc@120	1476 if (c == ' ')
adamc@311	1477 uw_writec_unsafe(ctx, '+');
adamc@120	1478 else if (isalnum(c))
adamc@311	1479 uw_writec_unsafe(ctx, c);
adamc@120	1480 else {
adamc@666	1481 sprintf(ctx->page.front, "%%%02X", c);
adamc@666	1482 ctx->page.front += 3;
adamc@120	1483 }
adamc@120	1484 }
adamc@428	1485
adamc@428	1486 return uw_unit_v;
adamc@120	1487 }
adamc@120	1488
adamc@428	1489 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1490 if (b == uw_Basis_False)
adamc@311	1491 uw_writec(ctx, '0');
adamc@186	1492 else
adamc@311	1493 uw_writec(ctx, '1');
adamc@428	1494
adamc@428	1495 return uw_unit_v;
adamc@186	1496 }
adamc@186	1497
adamc@120	1498
adamc@311	1499 static char uw_unurlify_advance(char s) {
adamc@144	1500 char *new_s = strchr(s, '/');
adamc@120	1501
adamc@120	1502 if (new_s)
adamc@120	1503 *new_s++ = 0;
adamc@120	1504 else
adamc@144	1505 new_s = strchr(s, 0);
adamc@144	1506
adamc@144	1507 return new_s;
adamc@144	1508 }
adamc@144	1509
adamc@311	1510 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1511 char new_s = uw_unurlify_advance(s);
adamc@311	1512 uw_Basis_int r;
adamc@120	1513
adamc@276	1514 r = atoll(*s);
adamc@120	1515 *s = new_s;
adamc@120	1516 return r;
adamc@120	1517 }
adamc@120	1518
adamc@311	1519 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1520 char new_s = uw_unurlify_advance(s);
adamc@311	1521 uw_Basis_float r;
adamc@120	1522
adamc@120	1523 r = atof(*s);
adamc@120	1524 *s = new_s;
adamc@120	1525 return r;
adamc@120	1526 }
adamc@120	1527
adamc@488	1528 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adamc@488	1529 return uw_Basis_unurlifyInt(ctx, s);
adamc@488	1530 }
adamc@488	1531
adamc@311	1532 static uw_Basis_string uw_unurlifyString_to(uw_context ctx, char r, char s) {
adamc@144	1533 char s1, s2;
adamc@144	1534 int n;
adamc@136	1535
adamc@144	1536 for (s1 = r, s2 = s; *s2; ++s1, ++s2) {
adamc@136	1537 char c = *s2;
adamc@136	1538
adamc@136	1539 switch (c) {
adamc@136	1540 case '+':
adamc@136	1541 *s1 = ' ';
adamc@136	1542 break;
adamc@136	1543 case '%':
adamc@169	1544 if (s2[1] == 0)
adamc@311	1545 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1546 if (s2[2] == 0)
adamc@311	1547 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1548 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@311	1549 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@136	1550 *s1 = n;
adamc@136	1551 s2 += 2;
adamc@136	1552 break;
adamc@136	1553 default:
adamc@136	1554 *s1 = c;
adamc@136	1555 }
adamc@136	1556 }
adamc@136	1557 *s1++ = 0;
adamc@144	1558 return s1;
adamc@144	1559 }
adamc@144	1560
adamc@311	1561 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	1562 char new_s = uw_unurlify_advance(s);
adamc@311	1563 uw_Basis_bool r;
adamc@186	1564
adamc@186	1565 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	1566 r = uw_Basis_False;
adamc@186	1567 else
adamc@311	1568 r = uw_Basis_True;
adamc@186	1569
adamc@186	1570 *s = new_s;
adamc@186	1571 return r;
adamc@186	1572 }
adamc@186	1573
adamc@311	1574 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	1575 char new_s = uw_unurlify_advance(s);
adamc@144	1576 char r, s1, *s2;
adamc@144	1577 int len, n;
adamc@144	1578
adamc@200	1579 len = strlen(*s);
adamc@311	1580 uw_check_heap(ctx, len + 1);
adamc@144	1581
adamc@666	1582 r = ctx->heap.front;
adamc@666	1583 ctx->heap.front = uw_unurlifyString_to(ctx, ctx->heap.front, *s);
adamc@136	1584 *s = new_s;
adamc@136	1585 return r;
adamc@120	1586 }
adamc@135	1587
adamc@135	1588
adamc@311	1589 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	1590 int len;
adamc@286	1591 char *r;
adamc@286	1592
adamc@311	1593 uw_check_heap(ctx, INTS_MAX);
adamc@666	1594 r = ctx->heap.front;
adamc@286	1595 sprintf(r, "%lld%n", n, &len);
adamc@666	1596 ctx->heap.front += len+1;
adamc@286	1597 return r;
adamc@286	1598 }
adamc@286	1599
adamc@428	1600 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	1601 int len;
adamc@286	1602
adamc@311	1603 uw_check(ctx, INTS_MAX);
adamc@666	1604 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1605 ctx->page.front += len;
adamc@428	1606
adamc@428	1607 return uw_unit_v;
adamc@286	1608 }
adamc@286	1609
adamc@311	1610 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	1611 int len;
adamc@286	1612 char *r;
adamc@286	1613
adamc@311	1614 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1615 r = ctx->heap.front;
adamc@286	1616 sprintf(r, "%g%n", n, &len);
adamc@666	1617 ctx->heap.front += len+1;
adamc@286	1618 return r;
adamc@286	1619 }
adamc@286	1620
adamc@428	1621 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	1622 int len;
adamc@286	1623
adamc@311	1624 uw_check(ctx, FLOATS_MAX);
adamc@666	1625 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1626 ctx->page.front += len;
adamc@428	1627
adamc@428	1628 return uw_unit_v;
adamc@286	1629 }
adamc@286	1630
adamc@311	1631 char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1632 char r, s2;
adamc@137	1633
adamc@311	1634 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	1635
adamc@666	1636 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@137	1637 char c = *s;
adamc@137	1638
adamc@137	1639 switch (c) {
adamc@137	1640 case '<':
adamc@137	1641 strcpy(s2, "<");
adamc@137	1642 s2 += 4;
adamc@137	1643 break;
adamc@137	1644 case '&':
adamc@137	1645 strcpy(s2, "&");
adamc@137	1646 s2 += 5;
adamc@137	1647 break;
adamc@137	1648 default:
adamc@137	1649 if (isprint(c))
adamc@137	1650 *s2++ = c;
adamc@137	1651 else {
adamc@137	1652 int len2;
adamc@137	1653 sprintf(s2, "&#%d;%n", c, &len2);
adamc@137	1654 s2 += len2;
adamc@137	1655 }
adamc@137	1656 }
adamc@137	1657 }
adamc@137	1658
adamc@137	1659 *s2++ = 0;
adamc@666	1660 ctx->heap.front = s2;
adamc@137	1661 return r;
adamc@135	1662 }
adamc@135	1663
adamc@428	1664 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	1665 uw_check(ctx, strlen(s) * 6);
adamc@135	1666
adamc@135	1667 for (; *s; s++) {
adamc@135	1668 char c = *s;
adamc@135	1669
adamc@135	1670 switch (c) {
adamc@135	1671 case '<':
adamc@311	1672 uw_write_unsafe(ctx, "<");
adamc@135	1673 break;
adamc@135	1674 case '&':
adamc@311	1675 uw_write_unsafe(ctx, "&");
adamc@135	1676 break;
adamc@135	1677 default:
adamc@135	1678 if (isprint(c))
adamc@311	1679 uw_writec_unsafe(ctx, c);
adamc@135	1680 else {
adamc@311	1681 uw_write_unsafe(ctx, "&#");
adamc@311	1682 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311	1683 uw_writec_unsafe(ctx, ';');
adamc@135	1684 }
adamc@135	1685 }
adamc@135	1686 }
adamc@428	1687
adamc@428	1688 return uw_unit_v;
adamc@135	1689 }
adamc@180	1690
adamc@311	1691 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1692 if (b == uw_Basis_False)
adamc@286	1693 return "False";
adamc@286	1694 else
adamc@286	1695 return "True";
adamc@286	1696 }
adamc@286	1697
adamc@428	1698 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1699 if (b == uw_Basis_False) {
adamc@311	1700 uw_check(ctx, 6);
adamc@666	1701 strcpy(ctx->page.front, "False");
adamc@666	1702 ctx->page.front += 5;
adamc@286	1703 } else {
adamc@311	1704 uw_check(ctx, 5);
adamc@666	1705 strcpy(ctx->page.front, "True");
adamc@666	1706 ctx->page.front += 4;
adamc@286	1707 }
adamc@428	1708
adamc@428	1709 return uw_unit_v;
adamc@286	1710 }
adamc@286	1711
adamc@436	1712 #define TIME_FMT "%x %X"
adamc@438	1713 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436	1714
adamc@436	1715 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436	1716 size_t len;
adamc@436	1717 char *r;
adamc@436	1718 struct tm stm;
adamc@436	1719
adamc@436	1720 if (localtime_r(&t, &stm)) {
adamc@436	1721 uw_check_heap(ctx, TIMES_MAX);
adamc@666	1722 r = ctx->heap.front;
adamc@436	1723 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	1724 ctx->heap.front += len+1;
adamc@436	1725 return r;
adamc@436	1726 } else
adamc@436	1727 return "<i>Invalid time</i>";
adamc@436	1728 }
adamc@436	1729
adamc@436	1730 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436	1731 size_t len;
adamc@436	1732 char *r;
adamc@436	1733 struct tm stm;
adamc@436	1734
adamc@436	1735 if (localtime_r(&t, &stm)) {
adamc@436	1736 uw_check(ctx, TIMES_MAX);
adamc@666	1737 r = ctx->page.front;
adamc@436	1738 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	1739 ctx->page.front += len;
adamc@436	1740 } else {
adamc@436	1741 uw_check(ctx, 20);
adamc@666	1742 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666	1743 ctx->page.front += 19;
adamc@436	1744 }
adamc@436	1745
adamc@436	1746 return uw_unit_v;
adamc@436	1747 }
adamc@436	1748
adamc@311	1749 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@180	1750 int len = strlen(s1) + strlen(s2) + 1;
adamc@180	1751 char *s;
adamc@180	1752
adamc@311	1753 uw_check_heap(ctx, len);
adamc@180	1754
adamc@666	1755 s = ctx->heap.front;
adamc@180	1756
adamc@180	1757 strcpy(s, s1);
adamc@180	1758 strcat(s, s2);
adamc@666	1759 ctx->heap.front += len;
adamc@180	1760
adamc@180	1761 return s;
adamc@180	1762 }
adamc@278	1763
adamc@737	1764 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@278	1765 int len = strlen(s1) + 1;
adamc@278	1766 char *s;
adamc@278	1767
adamc@311	1768 uw_check_heap(ctx, len);
adamc@278	1769
adamc@666	1770 s = ctx->heap.front;
adamc@278	1771
adamc@278	1772 strcpy(s, s1);
adamc@666	1773 ctx->heap.front += len;
adamc@278	1774
adamc@278	1775 return s;
adamc@278	1776 }
adamc@280	1777
adamc@737	1778 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	1779 if (s1)
adamc@737	1780 return uw_strdup(ctx, s1);
adamc@493	1781 else
adamc@493	1782 return NULL;
adamc@493	1783 }
adamc@493	1784
adamc@742	1785 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	1786 char *r = uw_malloc(ctx, len);
adamc@742	1787 memcpy(r, p, len);
adamc@742	1788 return r;
adamc@742	1789 }
adamc@280	1790
adamc@311	1791 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	1792 int len;
adamc@281	1793 char *r;
adamc@281	1794
adamc@311	1795 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	1796 r = ctx->heap.front;
adamc@281	1797 sprintf(r, "%lld::int8%n", n, &len);
adamc@666	1798 ctx->heap.front += len+1;
adamc@281	1799 return r;
adamc@281	1800 }
adamc@281	1801
adamc@467	1802 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	1803 if (n == NULL)
adamc@467	1804 return "NULL";
adamc@467	1805 else
adamc@467	1806 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	1807 }
adamc@467	1808
adamc@311	1809 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	1810 int len;
adamc@281	1811 char *r;
adamc@281	1812
adamc@311	1813 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	1814 r = ctx->heap.front;
adamc@281	1815 sprintf(r, "%g::float8%n", n, &len);
adamc@666	1816 ctx->heap.front += len+1;
adamc@281	1817 return r;
adamc@281	1818 }
adamc@281	1819
adamc@467	1820 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	1821 if (n == NULL)
adamc@467	1822 return "NULL";
adamc@467	1823 else
adamc@467	1824 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	1825 }
adamc@467	1826
adamc@281	1827
adamc@311	1828 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	1829 char r, s2;
adamc@280	1830
adamc@311	1831 uw_check_heap(ctx, strlen(s) * 2 + 10);
adamc@280	1832
adamc@666	1833 r = s2 = ctx->heap.front;
adamc@280	1834 *s2++ = 'E';
adamc@280	1835 *s2++ = '\'';
adamc@280	1836
adamc@280	1837 for (; *s; s++) {
adamc@280	1838 char c = *s;
adamc@280	1839
adamc@280	1840 switch (c) {
adamc@280	1841 case '\'':
adamc@280	1842 strcpy(s2, "\\'");
adamc@280	1843 s2 += 2;
adamc@280	1844 break;
adamc@280	1845 case '\\':
adamc@280	1846 strcpy(s2, "\\\\");
adamc@280	1847 s2 += 2;
adamc@280	1848 break;
adamc@280	1849 default:
adamc@280	1850 if (isprint(c))
adamc@280	1851 *s2++ = c;
adamc@280	1852 else {
adamc@737	1853 sprintf(s2, "\\%03o", c);
adamc@280	1854 s2 += 4;
adamc@280	1855 }
adamc@280	1856 }
adamc@280	1857 }
adamc@280	1858
adamc@281	1859 strcpy(s2, "'::text");
adamc@666	1860 ctx->heap.front = s2 + 8;
adamc@280	1861 return r;
adamc@280	1862 }
adamc@281	1863
adamc@737	1864 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	1865 char r, s2;
adamc@737	1866 size_t i;
adamc@737	1867
adamc@737	1868 uw_check_heap(ctx, b.size * 5 + 11);
adamc@737	1869
adamc@737	1870 r = s2 = ctx->heap.front;
adamc@737	1871 *s2++ = 'E';
adamc@737	1872 *s2++ = '\'';
adamc@737	1873
adamc@737	1874 for (i = 0; i < b.size; ++i) {
adamc@737	1875 char c = b.data[i];
adamc@737	1876
adamc@737	1877 switch (c) {
adamc@737	1878 case '\'':
adamc@737	1879 strcpy(s2, "\\'");
adamc@737	1880 s2 += 2;
adamc@737	1881 break;
adamc@737	1882 case '\\':
adamc@737	1883 strcpy(s2, "\\\\\\\\");
adamc@737	1884 s2 += 4;
adamc@737	1885 break;
adamc@737	1886 default:
adamc@737	1887 if (isprint(c))
adamc@737	1888 *s2++ = c;
adamc@737	1889 else {
adamc@737	1890 sprintf(s2, "\\\\%03o", c);
adamc@737	1891 s2 += 5;
adamc@737	1892 }
adamc@737	1893 }
adamc@737	1894 }
adamc@737	1895
adamc@737	1896 strcpy(s2, "'::bytea");
adamc@737	1897 ctx->heap.front = s2 + 9;
adamc@737	1898 return r;
adamc@737	1899 }
adamc@737	1900
adamc@682	1901 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1902 int len;
adamc@682	1903 char *r;
adamc@682	1904 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	1905
adamc@682	1906 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	1907 r = ctx->heap.front;
adamc@682	1908 sprintf(r, "%lld::int8%n", combo, &len);
adamc@682	1909 ctx->heap.front += len+1;
adamc@682	1910 return r;
adamc@682	1911 }
adamc@682	1912
adamc@682	1913 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1914 int len;
adamc@682	1915 char *r;
adamc@682	1916 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	1917
adamc@682	1918 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1919 r = ctx->heap.front;
adamc@682	1920 sprintf(r, "%lld%n", combo, &len);
adamc@682	1921 ctx->heap.front += len+1;
adamc@682	1922 return r;
adamc@682	1923 }
adamc@682	1924
adamc@682	1925 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	1926 int len;
adamc@682	1927 char *r;
adamc@682	1928
adamc@682	1929 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	1930 r = ctx->heap.front;
adamc@682	1931 sprintf(r, "%u::int4%n", cli, &len);
adamc@682	1932 ctx->heap.front += len+1;
adamc@682	1933 return r;
adamc@682	1934 }
adamc@682	1935
adamc@682	1936 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	1937 int len;
adamc@682	1938 char *r;
adamc@682	1939
adamc@682	1940 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1941 r = ctx->heap.front;
adamc@682	1942 sprintf(r, "%u%n", cli, &len);
adamc@682	1943 ctx->heap.front += len+1;
adamc@682	1944 return r;
adamc@682	1945 }
adamc@682	1946
adamc@467	1947 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	1948 if (s == NULL)
adamc@467	1949 return "NULL";
adamc@467	1950 else
adamc@467	1951 return uw_Basis_sqlifyString(ctx, s);
adamc@467	1952 }
adamc@467	1953
adamc@311	1954 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1955 if (b == uw_Basis_False)
adamc@281	1956 return "FALSE";
adamc@281	1957 else
adamc@281	1958 return "TRUE";
adamc@281	1959 }
adamc@282	1960
adamc@467	1961 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	1962 if (b == NULL)
adamc@467	1963 return "NULL";
adamc@467	1964 else
adamc@467	1965 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	1966 }
adamc@467	1967
adamc@439	1968 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	1969 size_t len;
adamc@682	1970 char r, s;
adamc@682	1971 struct tm stm;
adamc@682	1972
adamc@682	1973 if (localtime_r(&t, &stm)) {
adamc@682	1974 s = uw_malloc(ctx, TIMES_MAX);
adamc@682	1975 len = strftime(s, TIMES_MAX, TIME_FMT, &stm);
adamc@682	1976 r = uw_malloc(ctx, len + 14);
adamc@682	1977 sprintf(r, "'%s'::timestamp", s);
adamc@682	1978 return r;
adamc@682	1979 } else
adamc@682	1980 return "<Invalid time>";
adamc@682	1981 }
adamc@682	1982
adamc@682	1983 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	1984 size_t len;
adamc@439	1985 char *r;
adamc@439	1986 struct tm stm;
adamc@439	1987
adamc@439	1988 if (localtime_r(&t, &stm)) {
adamc@439	1989 uw_check_heap(ctx, TIMES_MAX);
adamc@666	1990 r = ctx->heap.front;
adamc@439	1991 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	1992 ctx->heap.front += len+1;
adamc@439	1993 return r;
adamc@439	1994 } else
adamc@439	1995 return "<Invalid time>";
adamc@439	1996 }
adamc@439	1997
adamc@467	1998 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	1999 if (t == NULL)
adamc@467	2000 return "NULL";
adamc@467	2001 else
adamc@467	2002 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2003 }
adamc@467	2004
adamc@311	2005 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2006 static uw_Basis_int true = 1;
adamc@311	2007 static uw_Basis_int false = 0;
adamc@282	2008
adamc@311	2009 if (b == uw_Basis_False)
adamc@282	2010 return (char *)&false;
adamc@282	2011 else
adamc@282	2012 return (char *)&true;
adamc@282	2013 }
adamc@284	2014
adamc@311	2015 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2016 int len;
adamc@284	2017 char *r;
adamc@284	2018
adamc@311	2019 uw_check_heap(ctx, INTS_MAX);
adamc@666	2020 r = ctx->heap.front;
adamc@284	2021 sprintf(r, "%lld%n", n, &len);
adamc@666	2022 ctx->heap.front += len+1;
adamc@284	2023 return r;
adamc@284	2024 }
adamc@285	2025
adamc@311	2026 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2027 int len;
adamc@285	2028 char *r;
adamc@285	2029
adamc@311	2030 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2031 r = ctx->heap.front;
adamc@285	2032 sprintf(r, "%g%n", n, &len);
adamc@666	2033 ctx->heap.front += len+1;
adamc@285	2034 return r;
adamc@285	2035 }
adamc@285	2036
adamc@311	2037 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2038 if (b == uw_Basis_False)
adamc@285	2039 return "False";
adamc@285	2040 else
adamc@285	2041 return "True";
adamc@285	2042 }
adamc@288	2043
adamc@436	2044 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436	2045 size_t len;
adamc@436	2046 char *r;
adamc@436	2047 struct tm stm;
adamc@436	2048
adamc@436	2049 if (localtime_r(&t, &stm)) {
adamc@436	2050 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2051 r = ctx->heap.front;
adamc@436	2052 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2053 ctx->heap.front += len+1;
adamc@436	2054 return r;
adamc@436	2055 } else
adamc@436	2056 return "<Invalid time>";
adamc@436	2057 }
adamc@288	2058
adamc@311	2059 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2060 char *endptr;
adamc@311	2061 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2062
adamc@288	2063 if (s != '\0' && endptr == '\0') {
adamc@311	2064 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2065 *r = n;
adamc@288	2066 return r;
adamc@288	2067 } else
adamc@288	2068 return NULL;
adamc@288	2069 }
adamc@289	2070
adamc@311	2071 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2072 char *endptr;
adamc@311	2073 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2074
adamc@289	2075 if (s != '\0' && endptr == '\0') {
adamc@311	2076 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2077 *r = n;
adamc@289	2078 return r;
adamc@289	2079 } else
adamc@289	2080 return NULL;
adamc@289	2081 }
adamc@289	2082
adamc@311	2083 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2084 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2085 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2086
adamc@289	2087 if (!strcasecmp (s, "True"))
adamc@289	2088 return &true;
adamc@289	2089 else if (!strcasecmp (s, "False"))
adamc@289	2090 return &false;
adamc@289	2091 else
adamc@289	2092 return NULL;
adamc@289	2093 }
adamc@292	2094
adamc@436	2095 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2096 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2097 struct tm stm;
adamc@436	2098
adamc@439	2099 if (dot) {
adamc@439	2100 *dot = 0;
adamc@439	2101 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2102 *dot = '.';
adamc@439	2103 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2104 *r = mktime(&stm);
adamc@439	2105 return r;
adamc@439	2106 }
adamc@439	2107 else {
adamc@439	2108 *dot = '.';
adamc@439	2109 return NULL;
adamc@439	2110 }
adamc@436	2111 }
adamc@439	2112 else {
adamc@439	2113 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2114 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2115 *r = mktime(&stm);
adamc@439	2116 return r;
adamc@439	2117 }
adamc@439	2118 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2119 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2120 *r = mktime(&stm);
adamc@439	2121 return r;
adamc@439	2122 }
adamc@439	2123 else
adamc@439	2124 return NULL;
adamc@439	2125 }
adamc@436	2126 }
adamc@436	2127
adamc@311	2128 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2129 char *endptr;
adamc@311	2130 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2131
adamc@292	2132 if (s != '\0' && endptr == '\0')
adamc@292	2133 return n;
adamc@292	2134 else
adamc@311	2135 uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292	2136 }
adamc@293	2137
adamc@682	2138 #include <errno.h>
adamc@682	2139
adamc@678	2140 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2141 unsigned long long n;
adamc@682	2142
adamc@682	2143 if (sscanf(s, "%llu", &n) < 1)
adamc@682	2144 uw_error(ctx, FATAL, "Can't parse channel: %s", s);
adamc@682	2145 else {
adamc@682	2146 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2147 return ch;
adamc@682	2148 }
adamc@682	2149 }
adamc@682	2150
adamc@682	2151 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2152 char *endptr;
adamc@682	2153 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2154
adamc@678	2155 if (s != '\0' && endptr == '\0')
adamc@678	2156 return n;
adamc@678	2157 else
adamc@682	2158 uw_error(ctx, FATAL, "Can't parse client: %s", s);
adamc@678	2159 }
adamc@678	2160
adamc@311	2161 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2162 char *endptr;
adamc@311	2163 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2164
adamc@293	2165 if (s != '\0' && endptr == '\0')
adamc@293	2166 return n;
adamc@293	2167 else
adamc@311	2168 uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293	2169 }
adamc@293	2170
adamc@311	2171 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2172 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2173 return uw_Basis_True;
adamc@296	2174 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2175 return uw_Basis_False;
adamc@293	2176 else
adamc@311	2177 uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293	2178 }
adamc@436	2179
adamc@436	2180 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2181 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2182 struct tm stm = {};
adamc@436	2183
adamc@438	2184 if (dot) {
adamc@438	2185 *dot = 0;
adamc@438	2186 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2187 *dot = '.';
adamc@438	2188 return mktime(&stm);
adamc@438	2189 }
adamc@438	2190 else {
adamc@438	2191 *dot = '.';
adamc@438	2192 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2193 }
adamc@438	2194 }
adamc@438	2195 else {
adamc@439	2196 if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439	2197 return mktime(&stm);
adamc@439	2198 else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438	2199 return mktime(&stm);
adamc@438	2200 else
adamc@438	2201 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2202 }
adamc@436	2203 }
adamc@457	2204
adamc@742	2205 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	2206 char *r = ctx->heap.front;
adamc@742	2207 uw_Basis_blob b = {len, r};
adamc@742	2208
adamc@742	2209 uw_check_heap(ctx, len);
adamc@742	2210
adamc@742	2211 while (*s) {
adamc@742	2212 if (s[0] == '\\') {
adamc@742	2213 if (s[1] == '\\') {
adamc@742	2214 *r++ = '\\';
adamc@742	2215 s += 2;
adamc@742	2216 } else if (isdigit(s[1]) && isdigit(s[2]) && isdigit(s[3])) {
adamc@742	2217 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	2218 s += 4;
adamc@742	2219 }
adamc@742	2220 else {
adamc@742	2221 *r++ = '\\';
adamc@742	2222 ++s;
adamc@742	2223 }
adamc@742	2224 } else {
adamc@742	2225 *r++ = s[0];
adamc@742	2226 ++s;
adamc@742	2227 }
adamc@742	2228 }
adamc@742	2229
adamc@742	2230 b.size = r - ctx->heap.front;
adamc@742	2231 ctx->heap.front = r;
adamc@742	2232 return b;
adamc@742	2233 }
adamc@742	2234
adamc@463	2235 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	2236 int len = strlen(c);
adamc@666	2237 char s = ctx->headers, p = ctx->outHeaders.start;
adamc@474	2238
adamc@474	2239 while (p = strstr(p, "\nSet-Cookie: ")) {
adamc@474	2240 char *p2;
adamc@474	2241 p += 13;
adamc@474	2242 p2 = strchr(p, '=');
adamc@474	2243
adamc@474	2244 if (p2) {
adamc@474	2245 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	2246
adamc@474	2247 if (!strncasecmp(p, c, p2 - p)) {
adamc@474	2248 char *ret = uw_malloc(ctx, sz + 1);
adamc@474	2249 memcpy(ret, p2+1, sz);
adamc@474	2250 ret[sz] = 0;
adamc@474	2251 return ret;
adamc@474	2252 }
adamc@474	2253 }
adamc@474	2254 }
adamc@463	2255
adamc@463	2256 while (p = strchr(s, ':')) {
adamc@476	2257 if (!strncasecmp(s, "Cookie: ", 8)) {
adamc@476	2258 p += 2;
adamc@476	2259 while (1) {
adamc@476	2260 if (!strncmp(p, c, len)
adamc@476	2261 && p + len < ctx->headers_end && p[len] == '=')
adamc@476	2262 return p + 1 + len;
adamc@476	2263 else if (p = strchr(p, ';'))
adamc@476	2264 p += 2;
adamc@476	2265 else if ((s = strchr(s, 0)) && s < ctx->headers_end) {
adamc@476	2266 s += 2;
adamc@476	2267 break;
adamc@476	2268 }
adamc@476	2269 else
adamc@476	2270 return NULL;
adamc@476	2271 }
adamc@463	2272 } else {
adamc@463	2273 if ((s = strchr(p, 0)) && s < ctx->headers_end)
adamc@463	2274 s += 2;
adamc@463	2275 else
adamc@463	2276 return NULL;
adamc@463	2277 }
adamc@463	2278 }
adamc@457	2279 }
adamc@462	2280
adamc@466	2281 uw_unit uw_Basis_set_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c, uw_Basis_string v) {
adamc@462	2282 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	2283 uw_write_header(ctx, c);
adamc@462	2284 uw_write_header(ctx, "=");
adamc@462	2285 uw_write_header(ctx, v);
adamc@466	2286 uw_write_header(ctx, "; path=");
adamc@466	2287 uw_write_header(ctx, prefix);
adamc@462	2288 uw_write_header(ctx, "\r\n");
adamc@462	2289
adamc@462	2290 return uw_unit_v;
adamc@462	2291 }
adamc@667	2292
adamc@682	2293 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	2294 unsigned i;
adamc@682	2295 delta *d;
adamc@671	2296
adamc@682	2297 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	2298 if (ctx->deltas[i].client == client)
adamc@682	2299 return &ctx->deltas[i];
adamc@671	2300
adamc@682	2301 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@682	2302 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adamc@682	2303 buf_init(&ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	2304 }
adamc@671	2305
adamc@682	2306 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	2307 d->client = client;
adamc@682	2308 buf_reset(&d->msgs);
adamc@682	2309 return d;
adamc@671	2310 }
adamc@671	2311
adamc@668	2312 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	2313 if (ctx->client == NULL)
adamc@682	2314 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	2315
adamc@682	2316 return new_channel(ctx->client);
adamc@668	2317 }
adamc@668	2318
adamc@668	2319 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	2320 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	2321 size_t len;
adamc@682	2322 int preLen;
adamc@682	2323 char pre[INTS_MAX + 2];
adamc@668	2324
adamc@682	2325 len = strlen(msg);
adamc@682	2326
adamc@682	2327 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	2328
adamc@682	2329 buf_append(&d->msgs, pre, preLen);
adamc@682	2330 buf_append(&d->msgs, msg, len);
adamc@682	2331 buf_append(&d->msgs, "\n", 1);
adamc@671	2332
adamc@671	2333 return uw_unit_v;
adamc@668	2334 }
adamc@671	2335
adamc@671	2336 int uw_db_commit(uw_context);
adamc@671	2337 int uw_db_rollback(uw_context);
adamc@671	2338
adamc@671	2339 void uw_commit(uw_context ctx) {
adamc@682	2340 unsigned i;
adamc@671	2341
adamc@700	2342 if (uw_db_commit(ctx))
adamc@671	2343 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@682	2344
adamc@682	2345 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	2346 delta *d = &ctx->deltas[i];
adamc@682	2347 client *c = find_client(d->client);
adamc@682	2348
adamc@682	2349 assert (c != NULL && c->mode == USED);
adamc@682	2350
adamc@685	2351 client_send(c, &d->msgs);
adamc@682	2352 }
adamc@682	2353
adamc@682	2354 if (ctx->client)
adamc@685	2355 release_client(ctx->client);
adamc@671	2356 }
adamc@671	2357
adamc@671	2358 int uw_rollback(uw_context ctx) {
adamc@682	2359 if (ctx->client)
adamc@685	2360 release_client(ctx->client);
adamc@671	2361
adamc@671	2362 return uw_db_rollback(ctx);
adamc@671	2363 }
adamc@683	2364
adamc@683	2365
adamc@683	2366 // "Garbage collection"
adamc@683	2367
adamc@683	2368 void uw_expunger(uw_context ctx, uw_Basis_client cli);
adamc@683	2369
adamc@683	2370 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli) {
adamc@683	2371 int r = setjmp(ctx->jmp_buf);
adamc@683	2372
adamc@684	2373 if (r == 0) {
adamc@684	2374 if (uw_db_begin(ctx))
adamc@684	2375 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@683	2376 uw_expunger(ctx, cli);
adamc@684	2377 if (uw_db_commit(ctx))
adamc@684	2378 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@684	2379 }
adamc@683	2380
adamc@683	2381 return r;
adamc@683	2382 }
adamc@683	2383
adamc@683	2384 void uw_prune_clients(uw_context ctx) {
adamc@683	2385 client c, next, *prev = NULL;
adamc@683	2386 time_t cutoff;
adamc@683	2387
adamc@683	2388 cutoff = time(NULL) - uw_timeout;
adamc@683	2389
adamc@683	2390 pthread_mutex_lock(&clients_mutex);
adamc@683	2391
adamc@683	2392 for (c = clients_used; c; c = next) {
adamc@683	2393 next = c->next;
adamc@683	2394 pthread_mutex_lock(&c->lock);
adamc@685	2395 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	2396 failure_kind fk = UNLIMITED_RETRY;
adamc@683	2397 if (prev)
adamc@683	2398 prev->next = next;
adamc@683	2399 else
adamc@683	2400 clients_used = next;
adamc@684	2401 uw_reset(ctx);
adamc@683	2402 while (fk == UNLIMITED_RETRY) {
adamc@683	2403 fk = uw_expunge(ctx, c->id);
adamc@684	2404 if (fk == UNLIMITED_RETRY) {
adamc@684	2405 uw_db_rollback(ctx);
adamc@684	2406 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	2407 }
adamc@683	2408 }
adamc@684	2409 if (fk == SUCCESS)
adamc@684	2410 free_client(c);
adamc@684	2411 else {
adamc@684	2412 uw_db_rollback(ctx);
adamc@683	2413 printf("Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@684	2414 }
adamc@683	2415 }
adamc@683	2416 else
adamc@683	2417 prev = c;
adamc@683	2418 pthread_mutex_unlock(&c->lock);
adamc@683	2419 }
adamc@683	2420
adamc@683	2421 pthread_mutex_unlock(&clients_mutex);
adamc@683	2422 }
adamc@687	2423
adamc@687	2424 void uw_initializer(uw_context ctx);
adamc@687	2425
adamc@687	2426 failure_kind uw_initialize(uw_context ctx) {
adamc@687	2427 int r = setjmp(ctx->jmp_buf);
adamc@687	2428
adamc@687	2429 if (r == 0) {
adamc@687	2430 if (uw_db_begin(ctx))
adamc@687	2431 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@687	2432 uw_initializer(ctx);
adamc@687	2433 if (uw_db_commit(ctx))
adamc@687	2434 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	2435 }
adamc@687	2436
adamc@687	2437 return r;
adamc@687	2438 }
adamc@717	2439
adamc@770	2440 extern int uw_check_url(const char *);
adamc@770	2441 extern int uw_check_mime(const char *);
adamc@770	2442
adamc@717	2443 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@770	2444 if (uw_check_url(s))
adamc@770	2445 return s;
adamc@770	2446 else
adamc@770	2447 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	2448 }
adamc@734	2449
adamc@770	2450 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@770	2451 if (uw_check_url(s))
adamc@770	2452 return s;
adamc@770	2453 else
adamc@770	2454 return NULL;
adamc@770	2455 }
adamc@770	2456
adamc@770	2457 int mime_format(const char *s) {
adamc@770	2458 for (; *s; ++s)
adamc@770	2459 if (!isalnum(s) && s != '/' && s != '-' && s != '.')
adamc@770	2460 return 0;
adamc@770	2461
adamc@770	2462 return 1;
adamc@770	2463 }
adamc@770	2464
adamc@741	2465 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	2466 if (!mime_format(s))
adamc@770	2467 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	2468
adamc@770	2469 if (uw_check_mime(s))
adamc@770	2470 return s;
adamc@770	2471 else
adamc@770	2472 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	2473 }
adamc@770	2474
adamc@770	2475 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	2476 if (!mime_format(s))
adamc@770	2477 return NULL;
adamc@770	2478
adamc@770	2479 if (uw_check_mime(s))
adamc@770	2480 return s;
adamc@770	2481 else
adamc@770	2482 return NULL;
adamc@741	2483 }
adamc@741	2484
adamc@734	2485 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	2486 return s ? s : "";
adamc@734	2487 }
adamc@734	2488
adamc@734	2489 extern int uw_hash_blocksize;
adamc@734	2490
adamc@734	2491 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	2492 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	2493 int i;
adamc@734	2494
adamc@734	2495 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	2496 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	2497
adamc@734	2498 return r;
adamc@734	2499 }
adamc@734	2500
adamc@734	2501 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@734	2502 return uw_cookie_sig(ctx);
adamc@734	2503 }
adamc@737	2504
adamc@737	2505 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	2506 return f.name;
adamc@737	2507 }
adamc@737	2508
adamc@740	2509 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	2510 return f.type;
adamc@740	2511 }
adamc@740	2512
adamc@745	2513 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	2514 return b.size;
adamc@745	2515 }
adamc@745	2516
adamc@737	2517 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	2518 return f.data;
adamc@737	2519 }
adamc@741	2520
adamc@741	2521 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	2522 cleanup *cl;
adamc@741	2523 int len;
adamc@741	2524
adamc@741	2525 buf_reset(&ctx->outHeaders);
adamc@741	2526 buf_reset(&ctx->page);
adamc@741	2527
adamc@741	2528 uw_write_header(ctx, "HTTP/1.1 200 OK\r\nContent-Type: ");
adamc@741	2529 uw_write_header(ctx, mimeType);
adamc@741	2530 uw_write_header(ctx, "\r\nContent-Length: ");
adamc@741	2531 buf_check(&ctx->outHeaders, INTS_MAX);
adamc@741	2532 sprintf(ctx->outHeaders.front, "%d%n", b.size, &len);
adamc@741	2533 ctx->outHeaders.front += len;
adamc@741	2534 uw_write_header(ctx, "\r\n");
adamc@741	2535
adamc@741	2536 buf_append(&ctx->page, b.data, b.size);
adamc@741	2537
adamc@741	2538 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	2539 cl->func(cl->arg);
adamc@741	2540
adamc@741	2541 ctx->cleanup_front = ctx->cleanup;
adamc@741	2542
adamc@741	2543 longjmp(ctx->jmp_buf, RETURN_BLOB);
adamc@741	2544 }

Mercurial > urweb

annotate src/c/urweb.c @ 770:c125df6fabfc