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

annotate src/c/urweb.c @ 773:74a090ff296e

constraints demo

author	Adam Chlipala <adamc@hcoop.net>
date	Sun, 03 May 2009 12:01:55 -0400
parents	8ed1261f838c
children	d20d6afc1206

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

Mercurial > urweb

annotate src/c/urweb.c @ 773:74a090ff296e