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

annotate src/c/urweb.c @ 987:6dd122f10c0c

Better location calculation for record unification error messages; infer kind arguments to module-projected variables

author	Adam Chlipala <adamc@hcoop.net>
date	Mon, 05 Oct 2009 16:36:38 -0400
parents	733f67bb64e7
children	7932d577cf78

rev	line source
adamc@741	1 #define _XOPEN_SOURCE 500
adamc@436	2
adamc@117	3 #include <stdlib.h>
adamc@102	4 #include <stdio.h>
adamc@117	5 #include <string.h>
adamc@457	6 #include <strings.h>
adamc@106	7 #include <ctype.h>
adamc@167	8 #include <setjmp.h>
adamc@167	9 #include <stdarg.h>
adamc@682	10 #include <assert.h>
adamc@741	11 #include <ctype.h>
adamc@102	12
adamc@667	13 #include <pthread.h>
adamc@667	14
adamc@102	15 #include "types.h"
adamc@102	16
adamc@311	17 uw_unit uw_unit_v = {};
adamc@102	18
adamc@667	19
adamc@667	20 // Socket extras
adamc@667	21
adamc@863	22 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667	23 while (len > 0) {
adamc@856	24 ssize_t n = send(sock, buf, len, 0);
adamc@856	25
adamc@856	26 if (n < 0)
adamc@856	27 return n;
adamc@856	28
adamc@856	29 buf += n;
adamc@856	30 len -= n;
adamc@856	31 }
adamc@856	32
adamc@856	33 return 0;
adamc@856	34 }
adamc@856	35
adamc@856	36 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856	37 while (len > 0) {
adamc@856	38 ssize_t n = write(fd, buf, len);
adamc@667	39
adamc@667	40 if (n < 0)
adamc@667	41 return n;
adamc@667	42
adamc@667	43 buf += n;
adamc@667	44 len -= n;
adamc@667	45 }
adamc@667	46
adamc@667	47 return 0;
adamc@667	48 }
adamc@667	49
adamc@667	50
adamc@667	51 // Buffers
adamc@667	52
adamc@667	53 typedef struct {
adamc@667	54 char start, front, *back;
adamc@667	55 } buf;
adamc@667	56
adamc@667	57 static void buf_init(buf *b, size_t s) {
adamc@667	58 b->front = b->start = malloc(s);
adamc@667	59 b->back = b->front + s;
adamc@667	60 }
adamc@667	61
adamc@667	62 static void buf_free(buf *b) {
adamc@667	63 free(b->start);
adamc@667	64 }
adamc@667	65
adamc@667	66 static void buf_reset(buf *b) {
adamc@667	67 b->front = b->start;
adamc@667	68 }
adamc@667	69
adamc@667	70 static void buf_check(buf *b, size_t extra) {
adamc@667	71 if (b->back - b->front < extra) {
adamc@667	72 size_t desired = b->front - b->start + extra, next;
adamc@667	73 char *new_heap;
adamc@667	74
adamc@667	75 next = b->back - b->start;
adamc@667	76 if (next == 0)
adamc@667	77 next = 1;
adamc@667	78 for (; next < desired; next *= 2);
adamc@667	79
adamc@667	80 new_heap = realloc(b->start, next);
adamc@667	81 b->front = new_heap + (b->front - b->start);
adamc@667	82 b->back = new_heap + next;
adamc@667	83 b->start = new_heap;
adamc@667	84 }
adamc@667	85 }
adamc@667	86
adamc@667	87 static size_t buf_used(buf *b) {
adamc@667	88 return b->front - b->start;
adamc@667	89 }
adamc@667	90
adamc@667	91 static size_t buf_avail(buf *b) {
adamc@667	92 return b->back - b->start;
adamc@667	93 }
adamc@667	94
adamc@668	95 static void buf_append(buf b, const char s, size_t len) {
adamc@672	96 buf_check(b, len+1);
adamc@668	97 memcpy(b->front, s, len);
adamc@668	98 b->front += len;
adamc@672	99 *b->front = 0;
adamc@668	100 }
adamc@667	101
adamc@668	102
adamc@672	103 // Persistent state types
adamc@667	104
adamc@667	105 typedef enum { UNUSED, USED } usage;
adamc@667	106
adamc@667	107 typedef struct client {
adamc@682	108 unsigned id;
adamc@667	109 usage mode;
adamc@682	110 int pass;
adamc@682	111 struct client *next;
adamc@689	112 pthread_mutex_t lock, pull_lock;
adamc@682	113 buf msgs;
adamc@682	114 int sock;
adamc@863	115 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	116 int (*close)(int fd);
adamc@682	117 time_t last_contact;
adamc@682	118 unsigned n_channels;
adamc@685	119 unsigned refcount;
adamc@667	120 } client;
adamc@667	121
adamc@672	122
adamc@672	123 // Persistent client state
adamc@672	124
adamc@682	125 static client *clients, clients_free, *clients_used;
adamc@682	126 static unsigned n_clients;
adamc@667	127
adamc@667	128 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@667	129
adamc@682	130 static client *new_client() {
adamc@667	131 client *c;
adamc@667	132
adamc@667	133 pthread_mutex_lock(&clients_mutex);
adamc@667	134
adamc@667	135 if (clients_free) {
adamc@667	136 c = clients_free;
adamc@682	137 clients_free = clients_free->next;
adamc@667	138 }
adamc@667	139 else {
adamc@667	140 ++n_clients;
adamc@667	141 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	142 c = malloc(sizeof(client));
adamc@667	143 c->id = n_clients-1;
adamc@682	144 pthread_mutex_init(&c->lock, NULL);
adamc@689	145 pthread_mutex_init(&c->pull_lock, NULL);
adamc@682	146 buf_init(&c->msgs, 0);
adamc@667	147 clients[n_clients-1] = c;
adamc@667	148 }
adamc@667	149
adamc@682	150 pthread_mutex_lock(&c->lock);
adamc@667	151 c->mode = USED;
adamc@682	152 c->pass = rand();
adamc@682	153 c->sock = -1;
adamc@682	154 c->last_contact = time(NULL);
adamc@682	155 buf_reset(&c->msgs);
adamc@682	156 c->n_channels = 0;
adamc@685	157 c->refcount = 0;
adamc@682	158 pthread_mutex_unlock(&c->lock);
adamc@682	159
adamc@682	160 c->next = clients_used;
adamc@682	161 clients_used = c;
adamc@667	162
adamc@667	163 pthread_mutex_unlock(&clients_mutex);
adamc@667	164
adamc@667	165 return c;
adamc@667	166 }
adamc@667	167
adamc@685	168 static void use_client(client *c) {
adamc@685	169 pthread_mutex_lock(&c->lock);
adamc@685	170 ++c->refcount;
adamc@685	171 pthread_mutex_unlock(&c->lock);
adamc@689	172 pthread_mutex_lock(&c->pull_lock);
adamc@685	173 }
adamc@685	174
adamc@685	175 static void release_client(client *c) {
adamc@689	176 pthread_mutex_unlock(&c->pull_lock);
adamc@685	177 pthread_mutex_lock(&c->lock);
adamc@685	178 --c->refcount;
adamc@685	179 pthread_mutex_unlock(&c->lock);
adamc@689	180
adamc@685	181 }
adamc@685	182
adamc@856	183 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adamc@667	184
adamc@682	185 static client *find_client(unsigned id) {
adamc@667	186 client *c;
adamc@667	187
adamc@667	188 pthread_mutex_lock(&clients_mutex);
adamc@667	189
adamc@667	190 if (id >= n_clients) {
adamc@667	191 pthread_mutex_unlock(&clients_mutex);
adamc@668	192 return NULL;
adamc@667	193 }
adamc@667	194
adamc@667	195 c = clients[id];
adamc@667	196
adamc@668	197 pthread_mutex_unlock(&clients_mutex);
adamc@668	198 return c;
adamc@668	199 }
adamc@668	200
adamc@856	201 static char *on_success = "HTTP/1.1 200 OK\r\n";
adamc@856	202
adamc@856	203 void uw_set_on_success(char *s) {
adamc@856	204 on_success = s;
adamc@856	205 }
adamc@856	206
adamc@863	207 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	208 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	209 int (*close)(int fd),
adamc@864	210 void *logger_data, uw_logger log_error) {
adamc@682	211 client *c = find_client(id);
adamc@668	212
adamc@668	213 if (c == NULL) {
adamc@667	214 close(sock);
adamc@864	215 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	216 return;
adamc@667	217 }
adamc@667	218
adamc@682	219 pthread_mutex_lock(&c->lock);
adamc@671	220
adamc@682	221 if (c->mode != USED) {
adamc@682	222 pthread_mutex_unlock(&c->lock);
adamc@667	223 close(sock);
adamc@864	224 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	225 return;
adamc@667	226 }
adamc@667	227
adamc@682	228 if (pass != c->pass) {
adamc@682	229 pthread_mutex_unlock(&c->lock);
adamc@682	230 close(sock);
adamc@864	231 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	232 return;
adamc@667	233 }
adamc@667	234
adamc@682	235 if (c->sock != -1) {
adamc@863	236 c->close(c->sock);
adamc@682	237 c->sock = -1;
adamc@682	238 }
adamc@667	239
adamc@682	240 c->last_contact = time(NULL);
adamc@682	241
adamc@682	242 if (buf_used(&c->msgs) > 0) {
adamc@863	243 send(sock, on_success, strlen(on_success));
adamc@863	244 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863	245 send(sock, c->msgs.start, buf_used(&c->msgs));
adamc@682	246 buf_reset(&c->msgs);
adamc@667	247 close(sock);
adamc@667	248 }
adamc@863	249 else {
adamc@682	250 c->sock = sock;
adamc@863	251 c->send = send;
adamc@863	252 c->close = close;
adamc@863	253 }
adamc@667	254
adamc@682	255 pthread_mutex_unlock(&c->lock);
adamc@667	256 }
adamc@667	257
adamc@682	258 static void free_client(client *c) {
adamc@682	259 c->mode = UNUSED;
adamc@682	260 c->pass = -1;
adamc@667	261
adamc@682	262 c->next = clients_free;
adamc@682	263 clients_free = c;
adamc@667	264 }
adamc@667	265
adamc@682	266 static uw_Basis_channel new_channel(client *c) {
adamc@682	267 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	268 return ch;
adamc@668	269 }
adamc@668	270
adamc@685	271 static void client_send(client c, buf msg) {
adamc@685	272 pthread_mutex_lock(&c->lock);
adamc@671	273
adamc@682	274 if (c->sock != -1) {
adamc@863	275 c->send(c->sock, on_success, strlen(on_success));
adamc@863	276 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863	277 c->send(c->sock, msg->start, buf_used(msg));
adamc@863	278 c->close(c->sock);
adamc@682	279 c->sock = -1;
adamc@682	280 } else
adamc@682	281 buf_append(&c->msgs, msg->start, buf_used(msg));
adamc@671	282
adamc@685	283 pthread_mutex_unlock(&c->lock);
adamc@668	284 }
adamc@668	285
adamc@668	286
adamc@668	287 // Global entry points
adamc@668	288
adamc@866	289 extern void uw_client_init();
adamc@866	290
adamc@668	291 void uw_global_init() {
adamc@668	292 srand(time(NULL) ^ getpid());
adamc@668	293
adamc@668	294 clients = malloc(0);
adamc@866	295
adamc@866	296 uw_client_init();
adamc@668	297 }
adamc@668	298
adamc@668	299
adamc@667	300 // Single-request state
adamc@667	301
adamc@167	302 #define ERROR_BUF_LEN 1024
adamc@167	303
adamc@323	304 typedef struct regions {
adamc@323	305 struct regions *next;
adamc@323	306 } regions;
adamc@323	307
adamc@425	308 typedef struct {
adamc@425	309 void (func)(void);
adamc@425	310 void *arg;
adamc@425	311 } cleanup;
adamc@425	312
adamc@671	313 typedef struct {
adamc@682	314 unsigned client;
adamc@671	315 buf msgs;
adamc@682	316 } delta;
adamc@671	317
adamc@737	318 typedef enum {
adamc@759	319 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	320 } input_kind;
adamc@737	321
adamc@756	322 typedef struct input {
adamc@737	323 input_kind kind;
adamc@737	324 union {
adamc@737	325 char *normal;
adamc@739	326 uw_Basis_file file;
adamc@756	327 struct {
adamc@759	328 struct input fields, parent;
adamc@756	329 } subform;
adamc@759	330 struct {
adamc@759	331 struct input entries, parent;
adamc@759	332 } subforms;
adamc@759	333 struct {
adamc@759	334 struct input fields, next, *parent;
adamc@759	335 } entry;
adamc@737	336 } data;
adamc@737	337 } input;
adamc@737	338
adamc@771	339 typedef struct {
adamc@771	340 void *data;
adamc@771	341 uw_callback commit, rollback, free;
adamc@771	342 } transactional;
adamc@771	343
adamc@311	344 struct uw_context {
adamc@854	345 char (get_header)(void , const char );
adamc@854	346 void *get_header_data;
adamc@457	347
adamc@666	348 buf outHeaders, page, heap, script;
adamc@921	349 int returning_blob;
adamc@759	350 input inputs, subinputs, *cur_container;
adamc@756	351 size_t n_subinputs, used_subinputs;
adamc@167	352
adamc@565	353 int source_count;
adamc@562	354
adamc@272	355 void *db;
adamc@272	356
adamc@167	357 jmp_buf jmp_buf;
adamc@167	358
adamc@323	359 regions *regions;
adamc@323	360
adamc@425	361 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	362
adamc@667	363 const char script_header, url_prefix;
adamc@643	364
adamc@736	365 int needs_push, needs_sig;
adamc@693	366
adamc@682	367 size_t n_deltas, used_deltas;
adamc@682	368 delta *deltas;
adamc@671	369
adamc@673	370 int timeout;
adamc@673	371
adamc@682	372 client *client;
adamc@682	373
adamc@771	374 transactional *transactionals;
adamc@771	375 size_t n_transactionals, used_transactionals;
adamc@771	376
adamc@167	377 char error_message[ERROR_BUF_LEN];
adamc@117	378 };
adamc@117	379
adamc@683	380 extern int uw_inputs_len, uw_timeout;
adamc@144	381
adamc@687	382 uw_context uw_init() {
adamc@311	383 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	384
adamc@854	385 ctx->get_header = NULL;
adamc@854	386 ctx->get_header_data = NULL;
adamc@457	387
adamc@687	388 buf_init(&ctx->outHeaders, 0);
adamc@687	389 buf_init(&ctx->page, 0);
adamc@921	390 ctx->returning_blob = 0;
adamc@687	391 buf_init(&ctx->heap, 0);
adamc@698	392 buf_init(&ctx->script, 1);
adamc@667	393 ctx->script.start[0] = 0;
adamc@136	394
adamc@737	395 ctx->inputs = calloc(uw_inputs_len, sizeof(input));
adamc@759	396 ctx->cur_container = NULL;
adamc@756	397 ctx->subinputs = malloc(0);
adamc@756	398 ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	399
adamc@272	400 ctx->db = NULL;
adamc@272	401
adamc@323	402 ctx->regions = NULL;
adamc@323	403
adamc@425	404 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	405
adamc@643	406 ctx->script_header = "";
adamc@667	407 ctx->url_prefix = "/";
adamc@693	408 ctx->needs_push = 0;
adamc@736	409 ctx->needs_sig = 0;
adamc@643	410
adamc@167	411 ctx->error_message[0] = 0;
adamc@167	412
adamc@565	413 ctx->source_count = 0;
adamc@562	414
adamc@682	415 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	416 ctx->deltas = malloc(0);
adamc@671	417
adamc@673	418 ctx->timeout = uw_timeout;
adamc@673	419
adamc@700	420 ctx->client = NULL;
adamc@700	421
adamc@700	422 ctx->error_message[0] = 0;
adamc@700	423
adamc@771	424 ctx->transactionals = malloc(0);
adamc@771	425 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	426
adamc@117	427 return ctx;
adamc@106	428 }
adamc@106	429
adamc@311	430 void uw_set_db(uw_context ctx, void *db) {
adamc@272	431 ctx->db = db;
adamc@272	432 }
adamc@272	433
adamc@311	434 void *uw_get_db(uw_context ctx) {
adamc@272	435 return ctx->db;
adamc@272	436 }
adamc@272	437
adamc@311	438 void uw_free(uw_context ctx) {
adamc@671	439 size_t i;
adamc@671	440
adamc@666	441 buf_free(&ctx->outHeaders);
adamc@666	442 buf_free(&ctx->script);
adamc@666	443 buf_free(&ctx->page);
adamc@666	444 buf_free(&ctx->heap);
adamc@144	445 free(ctx->inputs);
adamc@756	446 free(ctx->subinputs);
adamc@425	447 free(ctx->cleanup);
adamc@771	448 free(ctx->transactionals);
adamc@671	449
adamc@682	450 for (i = 0; i < ctx->n_deltas; ++i)
adamc@671	451 buf_free(&ctx->deltas[i].msgs);
adamc@671	452
adamc@136	453 free(ctx);
adamc@136	454 }
adamc@136	455
adamc@562	456 void uw_reset_keep_error_message(uw_context ctx) {
adamc@756	457 size_t i;
adamc@756	458
adamc@666	459 buf_reset(&ctx->outHeaders);
adamc@666	460 buf_reset(&ctx->script);
adamc@667	461 ctx->script.start[0] = 0;
adamc@666	462 buf_reset(&ctx->page);
adamc@921	463 ctx->returning_blob = 0;
adamc@666	464 buf_reset(&ctx->heap);
adamc@323	465 ctx->regions = NULL;
adamc@425	466 ctx->cleanup_front = ctx->cleanup;
adamc@565	467 ctx->source_count = 0;
adamc@682	468 ctx->used_deltas = 0;
adamc@682	469 ctx->client = NULL;
adamc@759	470 ctx->cur_container = NULL;
adamc@771	471 ctx->used_transactionals = 0;
adamc@167	472 }
adamc@167	473
adamc@562	474 void uw_reset_keep_request(uw_context ctx) {
adamc@562	475 uw_reset_keep_error_message(ctx);
adamc@562	476 ctx->error_message[0] = 0;
adamc@167	477 }
adamc@167	478
adamc@311	479 void uw_reset(uw_context ctx) {
adamc@311	480 uw_reset_keep_request(ctx);
adamc@737	481 memset(ctx->inputs, 0, uw_inputs_len * sizeof(input));
adamc@756	482 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adamc@756	483 ctx->used_subinputs = 0;
adamc@144	484 }
adamc@144	485
adamc@311	486 void uw_db_init(uw_context);
adamc@311	487 void uw_handle(uw_context, char *);
adamc@167	488
adamc@311	489 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	490 int r = setjmp(ctx->jmp_buf);
adamc@272	491
adamc@272	492 if (r == 0)
adamc@311	493 uw_db_init(ctx);
adamc@272	494
adamc@272	495 return r;
adamc@272	496 }
adamc@272	497
adamc@854	498 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	499 ctx->get_header = get_header;
adamc@854	500 ctx->get_header_data = get_header_data;
adamc@742	501 }
adamc@742	502
adamc@671	503 int uw_db_begin(uw_context);
adamc@167	504
adamc@801	505 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	506 va_list ap;
adamc@801	507 va_start(ap, fmt);
adamc@801	508
adamc@801	509 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	510 }
adamc@801	511
adamc@311	512 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	513 cleanup *cl;
adamc@425	514
adamc@167	515 va_list ap;
adamc@167	516 va_start(ap, fmt);
adamc@167	517
adamc@167	518 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	519
adamc@425	520 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	521 cl->func(cl->arg);
adamc@425	522
adamc@425	523 ctx->cleanup_front = ctx->cleanup;
adamc@425	524
adamc@190	525 longjmp(ctx->jmp_buf, fk);
adamc@167	526 }
adamc@167	527
adamc@425	528 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	529 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	530 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	531 if (len == 0)
adamc@425	532 newLen = 1;
adamc@425	533 else
adamc@428	534 newLen = len * 2;
adamc@470	535 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	536 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	537 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	538 }
adamc@425	539
adamc@425	540 ctx->cleanup_front->func = func;
adamc@425	541 ctx->cleanup_front->arg = arg;
adamc@425	542 ++ctx->cleanup_front;
adamc@425	543 }
adamc@425	544
adamc@682	545 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adamc@854	546 return ctx->get_header(ctx->get_header_data, h);
adamc@682	547 }
adamc@682	548
adamc@682	549 void uw_login(uw_context ctx) {
adamc@693	550 if (ctx->needs_push) {
adamc@682	551 char id_s, pass_s;
adamc@682	552
adamc@682	553 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682	554 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682	555 unsigned id = atoi(id_s);
adamc@682	556 int pass = atoi(pass_s);
adamc@682	557 client *c = find_client(id);
adamc@682	558
adamc@682	559 if (c == NULL)
adamc@682	560 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", id_s, pass_s);
adamc@682	561 else {
adamc@685	562 use_client(c);
adamc@682	563 ctx->client = c;
adamc@682	564
adamc@682	565 if (c->mode != USED)
adamc@682	566 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682	567 if (c->pass != pass)
adamc@682	568 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682	569 }
adamc@682	570 } else {
adamc@682	571 client *c = new_client();
adamc@685	572 use_client(c);
adamc@682	573 ctx->client = c;
adamc@864	574 }
adamc@682	575 }
adamc@682	576 }
adamc@682	577
adamc@671	578 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	579 int r = setjmp(ctx->jmp_buf);
adamc@671	580
adamc@671	581 if (r == 0) {
adamc@671	582 if (uw_db_begin(ctx))
adamc@671	583 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adamc@682	584
adamc@671	585 uw_handle(ctx, path);
adamc@671	586 }
adamc@671	587
adamc@671	588 return r;
adamc@671	589 }
adamc@671	590
adamc@772	591 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	592 if (ctx->client == NULL)
adamc@682	593 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	594
adamc@682	595 return ctx->client->id;
adamc@682	596 }
adamc@682	597
adamc@425	598 void uw_pop_cleanup(uw_context ctx) {
adamc@425	599 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	600 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	601
adamc@425	602 --ctx->cleanup_front;
adamc@425	603 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	604 }
adamc@425	605
adamc@311	606 char *uw_error_message(uw_context ctx) {
adamc@167	607 return ctx->error_message;
adamc@167	608 }
adamc@167	609
adamc@737	610 extern int uw_input_num(const char*);
adamc@144	611
adamc@759	612 static input *INP(uw_context ctx) {
adamc@759	613 if (ctx->cur_container == NULL)
adamc@759	614 return ctx->inputs;
adamc@759	615 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	616 return ctx->cur_container->data.subform.fields;
adamc@759	617 else if (ctx->cur_container->kind == ENTRY)
adamc@759	618 return ctx->cur_container->data.entry.fields;
adamc@759	619 else
adamc@760	620 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	621 }
adamc@759	622
adamc@760	623 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	624 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	625 *ptr += new_start - old_start;
adamc@760	626 }
adamc@760	627
adamc@760	628 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	629 switch (x->kind) {
adamc@759	630 case SUBFORM:
adamc@760	631 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	632 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	633 break;
adamc@759	634 case SUBFORMS:
adamc@760	635 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	636 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	637 break;
adamc@759	638 case ENTRY:
adamc@760	639 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	640 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	641 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@759	642 }
adamc@759	643 }
adamc@759	644
adamc@759	645 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	646 size_t i;
adamc@759	647 input *r;
adamc@759	648
adamc@759	649 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@759	650 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	651 size_t offset = new_subinputs - ctx->subinputs;
adamc@759	652
adamc@760	653 if (ctx->subinputs != new_subinputs) {
adamc@760	654 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	655 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	656 for (i = 0; i < uw_inputs_len; ++i)
adamc@760	657 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	658
adamc@760	659 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	660
adamc@760	661 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	662 ctx->subinputs = new_subinputs;
adamc@760	663 }
adamc@759	664 }
adamc@759	665
adamc@759	666 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	667
adamc@759	668 for (i = 0; i < len; ++i)
adamc@759	669 ctx->subinputs[ctx->used_subinputs++].kind = UNUSED;
adamc@759	670
adamc@759	671 return r;
adamc@759	672 }
adamc@756	673
adamc@801	674 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@756	675 if (!strcasecmp(name, ".b")) {
adamc@756	676 int n = uw_input_num(value);
adamc@756	677 input *inps;
adamc@756	678
adamc@801	679 if (n < 0) {
adamc@801	680 uw_set_error(ctx, "Bad subform name %s", value);
adamc@801	681 return -1;
adamc@801	682 }
adamc@801	683
adamc@801	684 if (n >= uw_inputs_len) {
adamc@801	685 uw_set_error(ctx, "For subform name %s, index %d is out of range", value, n);
adamc@801	686 return -1;
adamc@801	687 }
adamc@756	688
adamc@759	689 inps = check_input_space(ctx, uw_inputs_len);
adamc@759	690
adamc@759	691 INP(ctx)[n].kind = SUBFORM;
adamc@759	692 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	693 INP(ctx)[n].data.subform.fields = inps;
adamc@759	694 ctx->cur_container = &INP(ctx)[n];
adamc@756	695 } else if (!strcasecmp(name, ".e")) {
adamc@756	696 input *tmp;
adamc@756	697
adamc@801	698 if (ctx->cur_container == NULL) {
adamc@801	699 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	700 return -1;
adamc@801	701 }
adamc@756	702
adamc@759	703 tmp = ctx->cur_container;
adamc@759	704 switch (tmp->kind) {
adamc@759	705 case SUBFORM:
adamc@759	706 ctx->cur_container = tmp->data.subform.parent;
adamc@759	707 tmp->data.subform.parent = NULL;
adamc@759	708 break;
adamc@759	709 case SUBFORMS:
adamc@759	710 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	711 tmp->data.subforms.parent = NULL;
adamc@759	712 break;
adamc@759	713 case ENTRY:
adamc@759	714 ctx->cur_container = tmp->data.entry.parent;
adamc@759	715 break;
adamc@759	716 default:
adamc@801	717 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	718 return -1;
adamc@759	719 }
adamc@759	720 } else if (!strcasecmp(name, ".s")) {
adamc@759	721 int n = uw_input_num(value);
adamc@759	722
adamc@801	723 if (n < 0) {
adamc@801	724 uw_set_error(ctx, "Bad subforms name %s", value);
adamc@801	725 return -1;
adamc@801	726 }
adamc@801	727
adamc@801	728 if (n >= uw_inputs_len) {
adamc@801	729 uw_set_error(ctx, "For subforms name %s, index %d is out of range", value, n);
adamc@801	730 return -1;
adamc@801	731 }
adamc@759	732
adamc@759	733 INP(ctx)[n].kind = SUBFORMS;
adamc@759	734 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	735 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	736 ctx->cur_container = &INP(ctx)[n];
adamc@759	737 } else if (!strcasecmp(name, ".i")) {
adamc@759	738 input *inps;
adamc@759	739
adamc@801	740 if (!ctx->cur_container) {
adamc@801	741 uw_set_error(ctx, "New entry without container");
adamc@801	742 return -1;
adamc@801	743 }
adamc@801	744
adamc@801	745 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	746 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	747 return -1;
adamc@801	748 }
adamc@759	749
adamc@759	750 inps = check_input_space(ctx, uw_inputs_len + 1);
adamc@759	751
adamc@759	752 inps->kind = ENTRY;
adamc@759	753 inps->data.entry.parent = ctx->cur_container;
adamc@759	754 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	755 ctx->cur_container->data.subforms.entries = inps;
adamc@759	756
adamc@759	757 inps->data.entry.fields = inps+1;
adamc@759	758 ctx->cur_container = inps;
adamc@756	759 } else {
adamc@756	760 int n = uw_input_num(name);
adamc@756	761
adamc@801	762 if (n < 0) {
adamc@801	763 uw_set_error(ctx, "Bad input name %s", name);
adamc@801	764 return -1;
adamc@801	765 }
adamc@801	766
adamc@801	767 if (n >= uw_inputs_len) {
adamc@801	768 uw_set_error(ctx, "For input name %s, index %d is out of range", name, n);
adamc@801	769 return -1;
adamc@801	770 }
adamc@756	771
adamc@756	772 INP(ctx)[n].kind = NORMAL;
adamc@756	773 INP(ctx)[n].data.normal = value;
adamc@756	774 }
adamc@801	775
adamc@801	776 return 0;
adamc@144	777 }
adamc@144	778
adamc@311	779 char *uw_get_input(uw_context ctx, int n) {
adamc@169	780 if (n < 0)
adamc@311	781 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311	782 if (n >= uw_inputs_len)
adamc@311	783 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	784
adamc@756	785 switch (INP(ctx)[n].kind) {
adamc@737	786 case UNSET:
adamc@737	787 return NULL;
adamc@739	788 case FIL:
adamc@739	789 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	790 case SUBFORM:
adamc@756	791 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	792 case SUBFORMS:
adamc@759	793 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	794 case ENTRY:
adamc@759	795 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	796 case NORMAL:
adamc@756	797 return INP(ctx)[n].data.normal;
adamc@737	798 default:
adamc@737	799 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	800 }
adamc@138	801 }
adamc@138	802
adamc@311	803 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	804 if (n < 0)
adamc@311	805 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311	806 if (n >= uw_inputs_len)
adamc@311	807 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	808
adamc@756	809 switch (INP(ctx)[n].kind) {
adamc@737	810 case UNSET:
adamc@737	811 return "";
adamc@739	812 case FIL:
adamc@739	813 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	814 case SUBFORM:
adamc@756	815 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	816 case SUBFORMS:
adamc@759	817 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	818 case ENTRY:
adamc@759	819 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	820 case NORMAL:
adamc@756	821 return INP(ctx)[n].data.normal;
adamc@737	822 default:
adamc@737	823 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	824 }
adamc@737	825 }
adamc@737	826
adamc@801	827 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@737	828 int n = uw_input_num(name);
adamc@737	829
adamc@801	830 if (n < 0) {
adamc@801	831 uw_set_error(ctx, "Bad file input name %s", name);
adamc@801	832 return -1;
adamc@801	833 }
adamc@801	834
adamc@801	835 if (n >= uw_inputs_len) {
adamc@801	836 uw_set_error(ctx, "For file input name %s, index %d is out of range", name, n);
adamc@801	837 return -1;
adamc@801	838 }
adamc@737	839
adamc@739	840 ctx->inputs[n].kind = FIL;
adamc@739	841 ctx->inputs[n].data.file = f;
adamc@801	842
adamc@801	843 return 0;
adamc@737	844 }
adamc@737	845
adamc@739	846 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	847
adamc@760	848
adamc@760	849 static void parents(input *inp) {
adamc@760	850 printf("Stack: %p\n", inp);
adamc@760	851 while (inp) {
adamc@760	852 switch (inp->kind) {
adamc@760	853 case NORMAL:
adamc@760	854 printf("Normal(%p)\n", inp);
adamc@760	855 break;
adamc@760	856 case FIL:
adamc@760	857 printf("File(%p)\n", inp);
adamc@760	858 break;
adamc@760	859 case SUBFORM:
adamc@760	860 printf("Subform; fields = %p\n", inp->data.subform.fields);
adamc@760	861 inp = inp->data.subform.parent;
adamc@760	862 break;
adamc@760	863 case SUBFORMS:
adamc@760	864 printf("Subforms; entries = %p\n", inp->data.subforms.entries);
adamc@760	865 inp = inp->data.subforms.parent;
adamc@760	866 break;
adamc@760	867 case ENTRY:
adamc@760	868 printf("Entry; fields = %p; next = %p\n", inp->data.entry.fields, inp->data.entry.next);
adamc@760	869 inp = inp->data.entry.parent;
adamc@760	870 break;
adamc@760	871 default:
adamc@760	872 inp = NULL;
adamc@760	873 }
adamc@760	874 }
adamc@760	875 }
adamc@760	876
adamc@739	877 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	878 if (n < 0)
adamc@737	879 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@737	880 if (n >= uw_inputs_len)
adamc@737	881 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	882
adamc@756	883 switch (INP(ctx)[n].kind) {
adamc@737	884 case UNSET:
adamc@737	885 {
adamc@739	886 char *data = uw_malloc(ctx, 0);
adamc@740	887 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	888 return f;
adamc@737	889 }
adamc@739	890 case FIL:
adamc@756	891 return INP(ctx)[n].data.file;
adamc@737	892 case NORMAL:
adamc@737	893 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	894 case SUBFORM:
adamc@756	895 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	896 case SUBFORMS:
adamc@759	897 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	898 case ENTRY:
adamc@759	899 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	900 default:
adamc@737	901 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	902 }
adamc@190	903 }
adamc@190	904
adamc@756	905 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	906 if (n < 0)
adamc@756	907 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@756	908 if (n >= uw_inputs_len)
adamc@756	909 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	910
adamc@756	911 switch (INP(ctx)[n].kind) {
adamc@756	912 case UNSET:
adamc@756	913 uw_error(ctx, FATAL, "Missing subform");
adamc@756	914 case FIL:
adamc@756	915 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	916 case NORMAL:
adamc@756	917 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	918 case SUBFORMS:
adamc@759	919 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	920 case ENTRY:
adamc@759	921 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	922 case SUBFORM:
adamc@759	923 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	924 ctx->cur_container = &INP(ctx)[n];
adamc@756	925 return;
adamc@756	926 default:
adamc@756	927 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	928 }
adamc@756	929 }
adamc@756	930
adamc@756	931 void uw_leave_subform(uw_context ctx) {
adamc@756	932 input *tmp;
adamc@756	933
adamc@759	934 if (ctx->cur_container == NULL)
adamc@756	935 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	936
adamc@759	937 tmp = ctx->cur_container;
adamc@759	938 ctx->cur_container = tmp->data.subform.parent;
adamc@759	939 tmp->data.subform.parent = NULL;
adamc@759	940 }
adamc@759	941
adamc@759	942 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	943 input *inps;
adamc@759	944
adamc@759	945 if (n < 0)
adamc@759	946 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@759	947 if (n >= uw_inputs_len)
adamc@759	948 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	949
adamc@759	950 switch (INP(ctx)[n].kind) {
adamc@759	951 case UNSET:
adamc@759	952 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	953 case FIL:
adamc@759	954 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	955 case NORMAL:
adamc@759	956 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	957 case SUBFORM:
adamc@759	958 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	959 case ENTRY:
adamc@759	960 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	961 case SUBFORMS:
adamc@759	962 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	963 if (inps) {
adamc@759	964 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	965 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	966 return 1;
adamc@759	967 } else
adamc@759	968 return 0;
adamc@759	969 default:
adamc@759	970 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	971 }
adamc@759	972 }
adamc@759	973
adamc@759	974 int uw_next_entry(uw_context ctx) {
adamc@759	975 if (ctx->cur_container == NULL)
adamc@759	976 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	977
adamc@759	978 switch (ctx->cur_container->kind) {
adamc@759	979 case UNSET:
adamc@759	980 uw_error(ctx, FATAL, "Missing entry");
adamc@759	981 case FIL:
adamc@759	982 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	983 case NORMAL:
adamc@759	984 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	985 case SUBFORM:
adamc@759	986 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	987 case SUBFORMS:
adamc@759	988 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	989 case ENTRY:
adamc@759	990 if (ctx->cur_container->data.entry.next) {
adamc@759	991 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	992 return 1;
adamc@759	993 } else {
adamc@759	994 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	995 return 0;
adamc@759	996 }
adamc@759	997 default:
adamc@759	998 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	999 }
adamc@756	1000 }
adamc@756	1001
adamc@643	1002 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1003 ctx->script_header = s;
adamc@643	1004 }
adamc@643	1005
adamc@667	1006 void uw_set_url_prefix(uw_context ctx, const char *s) {
adamc@667	1007 ctx->url_prefix = s;
adamc@667	1008 }
adamc@667	1009
adamc@693	1010 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1011 ctx->needs_push = n;
adamc@693	1012 }
adamc@693	1013
adamc@736	1014 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1015 ctx->needs_sig = n;
adamc@736	1016 }
adamc@736	1017
adamc@667	1018
adamc@667	1019 static void buf_check_ctx(uw_context ctx, buf b, size_t extra, const char desc) {
adamc@666	1020 if (b->back - b->front < extra) {
adamc@666	1021 size_t desired = b->front - b->start + extra, next;
adamc@136	1022 char *new_heap;
adamc@136	1023
adamc@666	1024 next = b->back - b->start;
adamc@317	1025 if (next == 0)
adamc@317	1026 next = 1;
adamc@317	1027 for (; next < desired; next *= 2);
adamc@136	1028
adamc@666	1029 new_heap = realloc(b->start, next);
adamc@666	1030 b->front = new_heap + (b->front - b->start);
adamc@666	1031 b->back = new_heap + next;
adamc@136	1032
adamc@667	1033 if (new_heap != b->start) {
adamc@666	1034 b->start = new_heap;
adamc@666	1035 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously", desc);
adamc@136	1036 }
adamc@136	1037
adamc@666	1038 b->start = new_heap;
adamc@136	1039 }
adamc@136	1040 }
adamc@136	1041
adamc@832	1042 void uw_check_heap(uw_context ctx, size_t extra) {
adamc@667	1043 buf_check_ctx(ctx, &ctx->heap, extra, "heap chunk");
adamc@666	1044 }
adamc@666	1045
adamc@832	1046 char *uw_heap_front(uw_context ctx) {
adamc@832	1047 return ctx->heap.front;
adamc@832	1048 }
adamc@832	1049
adamc@832	1050 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1051 ctx->heap.front = fr;
adamc@832	1052 }
adamc@832	1053
adamc@311	1054 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136	1055 void *result;
adamc@136	1056
adamc@311	1057 uw_check_heap(ctx, len);
adamc@136	1058
adamc@666	1059 result = ctx->heap.front;
adamc@666	1060 ctx->heap.front += len;
adamc@136	1061 return result;
adamc@117	1062 }
adamc@117	1063
adamc@323	1064 void uw_begin_region(uw_context ctx) {
adamc@666	1065 regions r = (regions ) ctx->heap.front;
adamc@323	1066
adamc@323	1067 uw_check_heap(ctx, sizeof(regions));
adamc@323	1068
adamc@666	1069 ctx->heap.front += sizeof(regions);
adamc@323	1070
adamc@323	1071 r->next = ctx->regions;
adamc@323	1072 ctx->regions = r;
adamc@323	1073 }
adamc@323	1074
adamc@323	1075 void uw_end_region(uw_context ctx) {
adamc@323	1076 regions *r = ctx->regions;
adamc@323	1077
adamc@323	1078 if (r == NULL)
adamc@323	1079 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1080
adamc@666	1081 ctx->heap.front = (char *) r;
adamc@323	1082 ctx->regions = r->next;
adamc@323	1083 }
adamc@323	1084
adamc@324	1085 void uw_memstats(uw_context ctx) {
adamc@666	1086 printf("Headers: %d/%d\n", buf_used(&ctx->outHeaders), buf_avail(&ctx->outHeaders));
adamc@666	1087 printf("Script: %d/%d\n", buf_used(&ctx->script), buf_avail(&ctx->script));
adamc@666	1088 printf("Page: %d/%d\n", buf_used(&ctx->page), buf_avail(&ctx->page));
adamc@666	1089 printf("Heap: %d/%d\n", buf_used(&ctx->heap), buf_avail(&ctx->heap));
adamc@324	1090 }
adamc@324	1091
adamc@311	1092 int uw_send(uw_context ctx, int sock) {
adamc@666	1093 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462	1094
adamc@462	1095 if (n < 0)
adamc@462	1096 return n;
adamc@462	1097
adamc@462	1098 n = uw_really_send(sock, "\r\n", 2);
adamc@462	1099
adamc@462	1100 if (n < 0)
adamc@462	1101 return n;
adamc@462	1102
adamc@666	1103 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462	1104 }
adamc@462	1105
adamc@856	1106 int uw_print(uw_context ctx, int fd) {
adamc@856	1107 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1108
adamc@856	1109 if (n < 0)
adamc@856	1110 return n;
adamc@856	1111
adamc@856	1112 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1113
adamc@856	1114 if (n < 0)
adamc@856	1115 return n;
adamc@856	1116
adamc@856	1117 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1118 }
adamc@856	1119
adamc@860	1120 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1121 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1122
adamc@860	1123 if (n < 0)
adamc@860	1124 return n;
adamc@860	1125
adamc@860	1126 n = output(data, "\r\n", 2);
adamc@860	1127
adamc@860	1128 if (n < 0)
adamc@860	1129 return n;
adamc@860	1130
adamc@860	1131 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1132 }
adamc@860	1133
adamc@462	1134 static void uw_check_headers(uw_context ctx, size_t extra) {
adamc@667	1135 buf_check(&ctx->outHeaders, extra);
adamc@462	1136 }
adamc@462	1137
adamc@462	1138 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1139 int len = strlen(s);
adamc@462	1140
adamc@462	1141 uw_check_headers(ctx, len + 1);
adamc@666	1142 strcpy(ctx->outHeaders.front, s);
adamc@666	1143 ctx->outHeaders.front += len;
adamc@562	1144 }
adamc@562	1145
adamc@562	1146 static void uw_check_script(uw_context ctx, size_t extra) {
adamc@667	1147 buf_check(&ctx->script, extra);
adamc@562	1148 }
adamc@562	1149
adamc@562	1150 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1151 int len = strlen(s);
adamc@562	1152
adamc@562	1153 uw_check_script(ctx, len + 1);
adamc@666	1154 strcpy(ctx->script.front, s);
adamc@666	1155 ctx->script.front += len;
adamc@562	1156 }
adamc@562	1157
adamc@645	1158 const char *uw_Basis_get_script(uw_context ctx, uw_unit u) {
adamc@916	1159 return "<sc>";
adamc@565	1160 }
adamc@565	1161
adamc@695	1162 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1163 if (s[0] == 0)
adamc@695	1164 return "";
adamc@695	1165 else {
adamc@695	1166 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1167 sprintf(r, " onload='%s'", s);
adamc@695	1168 return r;
adamc@695	1169 }
adamc@695	1170 }
adamc@695	1171
adamc@736	1172 extern uw_Basis_string uw_cookie_sig(uw_context);
adamc@736	1173
adamc@694	1174 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1175 if (ctx->client == NULL) {
adamc@736	1176 if (ctx->needs_sig) {
adamc@736	1177 char *sig = uw_cookie_sig(ctx);
adamc@736	1178 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1179 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1180 return r;
adamc@736	1181 }
adamc@736	1182 else
adamc@736	1183 return "";
adamc@736	1184 } else {
adamc@736	1185 char *sig = ctx->needs_sig ? uw_cookie_sig(ctx) : "";
adamc@736	1186 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->url_prefix)
adamc@736	1187 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adamc@736	1188 sprintf(r, "client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adamc@682	1189 ctx->client->id,
adamc@682	1190 ctx->client->pass,
adamc@679	1191 ctx->url_prefix,
adamc@736	1192 ctx->timeout,
adamc@736	1193 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1194 sig,
adamc@736	1195 ctx->needs_sig ? "\";" : "");
adamc@679	1196 return r;
adamc@668	1197 }
adamc@667	1198 }
adamc@667	1199
adamc@574	1200 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1201 char r, s2;
adamc@574	1202
adamc@574	1203 uw_check_heap(ctx, strlen(s) * 4 + 2);
adamc@574	1204
adamc@666	1205 r = s2 = ctx->heap.front;
adamc@574	1206 *s2++ = '"';
adamc@574	1207
adamc@574	1208 for (; *s; s++) {
adamc@574	1209 char c = *s;
adamc@574	1210
adamc@574	1211 switch (c) {
adamc@574	1212 case '"':
adamc@574	1213 strcpy(s2, "\\\"");
adamc@574	1214 s2 += 2;
adamc@574	1215 break;
adamc@574	1216 case '\\':
adamc@574	1217 strcpy(s2, "\\\\");
adamc@574	1218 s2 += 2;
adamc@574	1219 break;
adamc@574	1220 default:
adamc@574	1221 if (isprint(c))
adamc@574	1222 *s2++ = c;
adamc@574	1223 else {
adamc@574	1224 sprintf(s2, "\\%3o", c);
adamc@574	1225 s2 += 4;
adamc@574	1226 }
adamc@574	1227 }
adamc@574	1228 }
adamc@574	1229
adamc@574	1230 strcpy(s2, "\"");
adamc@910	1231 ctx->heap.front = s2 + 2;
adamc@574	1232 return r;
adamc@574	1233 }
adamc@574	1234
adamc@574	1235 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1236 char r, s2;
adamc@574	1237
adamc@574	1238 uw_check_script(ctx, strlen(s) * 4 + 2);
adamc@574	1239
adamc@666	1240 r = s2 = ctx->script.front;
adamc@574	1241 *s2++ = '"';
adamc@574	1242
adamc@574	1243 for (; *s; s++) {
adamc@574	1244 char c = *s;
adamc@574	1245
adamc@574	1246 switch (c) {
adamc@577	1247 case '\'':
adamc@574	1248 strcpy(s2, "\\\"");
adamc@574	1249 s2 += 2;
adamc@574	1250 break;
adamc@574	1251 case '\\':
adamc@574	1252 strcpy(s2, "\\\\");
adamc@574	1253 s2 += 2;
adamc@574	1254 break;
adamc@574	1255 default:
adamc@574	1256 if (isprint(c))
adamc@574	1257 *s2++ = c;
adamc@574	1258 else {
adamc@574	1259 sprintf(s2, "\\%3o", c);
adamc@574	1260 s2 += 4;
adamc@574	1261 }
adamc@574	1262 }
adamc@574	1263 }
adamc@574	1264
adamc@574	1265 strcpy(s2, "\"");
adamc@666	1266 ctx->script.front = s2 + 1;
adamc@574	1267 return r;
adamc@574	1268 }
adamc@574	1269
adamc@682	1270 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1271 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1272 return "null";
adamc@682	1273 else {
adamc@682	1274 int len;
adamc@682	1275 char *r;
adamc@682	1276
adamc@682	1277 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1278 r = ctx->heap.front;
adamc@682	1279 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1280 ctx->heap.front += len+1;
adamc@682	1281 return r;
adamc@682	1282 }
adamc@682	1283 }
adamc@682	1284
adamc@577	1285 uw_Basis_int uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1286 int len;
adamc@577	1287 size_t s_len = strlen(s);
adamc@562	1288
adamc@970	1289 uw_check_script(ctx, 18 + INTS_MAX + s_len);
adamc@970	1290 sprintf(ctx->script.front, "var s%d=sc(exec(%n", ctx->source_count, &len);
adamc@666	1291 ctx->script.front += len;
adamc@666	1292 strcpy(ctx->script.front, s);
adamc@666	1293 ctx->script.front += s_len;
adamc@970	1294 strcpy(ctx->script.front, "));");
adamc@972	1295 ctx->script.front += 3;
adamc@562	1296
adamc@565	1297 return ctx->source_count++;
adamc@117	1298 }
adamc@117	1299
adamc@577	1300 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_int n, uw_Basis_string s) {
adamc@577	1301 int len;
adamc@577	1302 size_t s_len = strlen(s);
adamc@577	1303
adamc@970	1304 uw_check_script(ctx, 12 + INTS_MAX + s_len);
adamc@970	1305 sprintf(ctx->script.front, "sv(s%d,exec(%n", (int)n, &len);
adamc@666	1306 ctx->script.front += len;
adamc@666	1307 strcpy(ctx->script.front, s);
adamc@666	1308 ctx->script.front += s_len;
adamc@970	1309 strcpy(ctx->script.front, "));");
adamc@972	1310 ctx->script.front += 3;
adamc@577	1311
adamc@577	1312 return uw_unit_v;
adamc@577	1313 }
adamc@577	1314
adamc@311	1315 static void uw_check(uw_context ctx, size_t extra) {
adamc@667	1316 buf_check(&ctx->page, extra);
adamc@117	1317 }
adamc@117	1318
adamc@311	1319 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1320 *(ctx->page.front)++ = c;
adamc@117	1321 }
adamc@117	1322
adamc@311	1323 void uw_writec(uw_context ctx, char c) {
adamc@311	1324 uw_check(ctx, 1);
adamc@311	1325 uw_writec_unsafe(ctx, c);
adamc@117	1326 }
adamc@117	1327
adamc@311	1328 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1329 int len = strlen(s);
adamc@666	1330 memcpy(ctx->page.front, s, len);
adamc@666	1331 ctx->page.front += len;
adamc@117	1332 }
adamc@117	1333
adamc@311	1334 void uw_write(uw_context ctx, const char* s) {
adamc@311	1335 uw_check(ctx, strlen(s) + 1);
adamc@311	1336 uw_write_unsafe(ctx, s);
adamc@666	1337 *ctx->page.front = 0;
adamc@102	1338 }
adamc@106	1339
adamc@311	1340 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1341 char *result;
adamc@136	1342 int len;
adamc@311	1343 uw_check_heap(ctx, INTS_MAX);
adamc@666	1344 result = ctx->heap.front;
adamc@276	1345 sprintf(result, "%lld%n", n, &len);
adamc@666	1346 ctx->heap.front += len+1;
adamc@136	1347 return result;
adamc@106	1348 }
adamc@106	1349
adamc@311	1350 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1351 char *result;
adamc@136	1352 int len;
adamc@311	1353 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1354 result = ctx->heap.front;
adamc@136	1355 sprintf(result, "%g%n", n, &len);
adamc@666	1356 ctx->heap.front += len+1;
adamc@136	1357 return result;
adamc@106	1358 }
adamc@106	1359
adamc@311	1360 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1361 int len = strlen(s);
adamc@136	1362 char result, p;
adamc@311	1363 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1364
adamc@666	1365 result = p = ctx->heap.front;
adamc@136	1366
adamc@136	1367 for (; *s; s++) {
adamc@136	1368 char c = *s;
adamc@136	1369
adamc@136	1370 if (c == '"') {
adamc@136	1371 strcpy(p, """);
adamc@136	1372 p += 6;
adamc@136	1373 } else if (c == '&') {
adamc@136	1374 strcpy(p, "&");
adamc@136	1375 p += 5;
adamc@136	1376 }
adamc@136	1377 else if (isprint(c))
adamc@136	1378 *p++ = c;
adamc@136	1379 else {
adamc@136	1380 int len2;
adamc@136	1381 sprintf(p, "&#%d;%n", c, &len2);
adamc@136	1382 p += len2;
adamc@136	1383 }
adamc@136	1384 }
adamc@136	1385
adamc@137	1386 *p++ = 0;
adamc@666	1387 ctx->heap.front = p;
adamc@136	1388 return result;
adamc@106	1389 }
adamc@106	1390
adamc@721	1391 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1392 return s;
adamc@721	1393 }
adamc@721	1394
adamc@311	1395 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1396 int len;
adamc@117	1397
adamc@666	1398 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1399 ctx->page.front += len;
adamc@106	1400 }
adamc@106	1401
adamc@428	1402 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1403 uw_check(ctx, INTS_MAX);
adamc@311	1404 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1405
adamc@428	1406 return uw_unit_v;
adamc@106	1407 }
adamc@106	1408
adamc@428	1409 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1410 int len;
adamc@117	1411
adamc@311	1412 uw_check(ctx, FLOATS_MAX);
adamc@666	1413 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1414 ctx->page.front += len;
adamc@428	1415
adamc@428	1416 return uw_unit_v;
adamc@117	1417 }
adamc@117	1418
adamc@428	1419 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1420 uw_check(ctx, strlen(s) * 6);
adamc@117	1421
adamc@106	1422 for (; *s; s++) {
adamc@106	1423 char c = *s;
adamc@106	1424
adamc@106	1425 if (c == '"')
adamc@311	1426 uw_write_unsafe(ctx, """);
adamc@136	1427 else if (c == '&')
adamc@311	1428 uw_write_unsafe(ctx, "&");
adamc@106	1429 else if (isprint(c))
adamc@311	1430 uw_writec_unsafe(ctx, c);
adamc@106	1431 else {
adamc@311	1432 uw_write_unsafe(ctx, "&#");
adamc@311	1433 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311	1434 uw_writec_unsafe(ctx, ';');
adamc@106	1435 }
adamc@106	1436 }
adamc@428	1437
adamc@428	1438 return uw_unit_v;
adamc@106	1439 }
adamc@120	1440
adamc@120	1441
adamc@311	1442 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1443 int len;
adamc@137	1444 char *r;
adamc@137	1445
adamc@311	1446 uw_check_heap(ctx, INTS_MAX);
adamc@666	1447 r = ctx->heap.front;
adamc@276	1448 sprintf(r, "%lld%n", n, &len);
adamc@666	1449 ctx->heap.front += len+1;
adamc@137	1450 return r;
adamc@120	1451 }
adamc@120	1452
adamc@682	1453 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1454 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1455 return "";
adamc@682	1456 else {
adamc@682	1457 int len;
adamc@682	1458 char *r;
adamc@679	1459
adamc@682	1460 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1461 r = ctx->heap.front;
adamc@682	1462 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1463 ctx->heap.front += len+1;
adamc@682	1464 return r;
adamc@682	1465 }
adamc@679	1466 }
adamc@679	1467
adamc@311	1468 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1469 int len;
adamc@137	1470 char *r;
adamc@137	1471
adamc@311	1472 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1473 r = ctx->heap.front;
adamc@137	1474 sprintf(r, "%g%n", n, &len);
adamc@666	1475 ctx->heap.front += len+1;
adamc@137	1476 return r;
adamc@120	1477 }
adamc@120	1478
adamc@311	1479 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1480 char r, p;
adamc@137	1481
adamc@925	1482 if (s[0] == '\0')
adamc@925	1483 return "_";
adamc@925	1484
adamc@925	1485 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1486
adamc@925	1487 r = p = ctx->heap.front;
adamc@925	1488 if (s[0] == '_')
adamc@925	1489 *p++ = '_';
adamc@925	1490
adamc@925	1491 for (; *s; s++) {
adamc@137	1492 char c = *s;
adamc@137	1493
adamc@137	1494 if (c == ' ')
adamc@137	1495 *p++ = '+';
adamc@137	1496 else if (isalnum(c))
adamc@137	1497 *p++ = c;
adamc@137	1498 else {
adamc@137	1499 sprintf(p, "%%%02X", c);
adamc@137	1500 p += 3;
adamc@137	1501 }
adamc@137	1502 }
adamc@137	1503
adamc@137	1504 *p++ = 0;
adamc@666	1505 ctx->heap.front = p;
adamc@137	1506 return r;
adamc@120	1507 }
adamc@120	1508
adamc@311	1509 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1510 if (b == uw_Basis_False)
adamc@186	1511 return "0";
adamc@186	1512 else
adamc@186	1513 return "1";
adamc@186	1514 }
adamc@186	1515
adamc@311	1516 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1517 int len;
adamc@120	1518
adamc@666	1519 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1520 ctx->page.front += len;
adamc@120	1521 }
adamc@120	1522
adamc@428	1523 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1524 uw_check(ctx, INTS_MAX);
adamc@311	1525 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1526
adamc@428	1527 return uw_unit_v;
adamc@120	1528 }
adamc@120	1529
adamc@682	1530 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1531 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1532 int len;
adamc@682	1533
adamc@682	1534 uw_check(ctx, INTS_MAX + 1);
adamc@682	1535 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1536 ctx->page.front += len;
adamc@682	1537 }
adamc@682	1538
adamc@679	1539 return uw_unit_v;
adamc@679	1540 }
adamc@679	1541
adamc@428	1542 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1543 int len;
adamc@120	1544
adamc@311	1545 uw_check(ctx, FLOATS_MAX);
adamc@666	1546 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1547 ctx->page.front += len;
adamc@428	1548
adamc@428	1549 return uw_unit_v;
adamc@120	1550 }
adamc@120	1551
adamc@488	1552 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@488	1553 return uw_Basis_urlifyInt(ctx, t);
adamc@488	1554 }
adamc@488	1555
adamc@428	1556 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1557 if (s[0] == '\0') {
adamc@925	1558 uw_check(ctx, 1);
adamc@925	1559 uw_writec_unsafe(ctx, '_');
adamc@925	1560 return uw_unit_v;
adamc@925	1561 }
adamc@925	1562
adamc@925	1563 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1564
adamc@925	1565 if (s[0] == '_')
adamc@925	1566 uw_writec_unsafe(ctx, '_');
adamc@120	1567
adamc@120	1568 for (; *s; s++) {
adamc@120	1569 char c = *s;
adamc@120	1570
adamc@120	1571 if (c == ' ')
adamc@311	1572 uw_writec_unsafe(ctx, '+');
adamc@120	1573 else if (isalnum(c))
adamc@311	1574 uw_writec_unsafe(ctx, c);
adamc@120	1575 else {
adamc@666	1576 sprintf(ctx->page.front, "%%%02X", c);
adamc@666	1577 ctx->page.front += 3;
adamc@120	1578 }
adamc@120	1579 }
adamc@428	1580
adamc@428	1581 return uw_unit_v;
adamc@120	1582 }
adamc@120	1583
adamc@428	1584 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1585 if (b == uw_Basis_False)
adamc@311	1586 uw_writec(ctx, '0');
adamc@186	1587 else
adamc@311	1588 uw_writec(ctx, '1');
adamc@428	1589
adamc@428	1590 return uw_unit_v;
adamc@186	1591 }
adamc@186	1592
adamc@120	1593
adamc@311	1594 static char uw_unurlify_advance(char s) {
adamc@144	1595 char *new_s = strchr(s, '/');
adamc@120	1596
adamc@120	1597 if (new_s)
adamc@120	1598 *new_s++ = 0;
adamc@120	1599 else
adamc@144	1600 new_s = strchr(s, 0);
adamc@144	1601
adamc@144	1602 return new_s;
adamc@144	1603 }
adamc@144	1604
adamc@311	1605 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1606 char new_s = uw_unurlify_advance(s);
adamc@311	1607 uw_Basis_int r;
adamc@120	1608
adamc@276	1609 r = atoll(*s);
adamc@120	1610 *s = new_s;
adamc@120	1611 return r;
adamc@120	1612 }
adamc@120	1613
adamc@311	1614 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1615 char new_s = uw_unurlify_advance(s);
adamc@311	1616 uw_Basis_float r;
adamc@120	1617
adamc@120	1618 r = atof(*s);
adamc@120	1619 *s = new_s;
adamc@120	1620 return r;
adamc@120	1621 }
adamc@120	1622
adamc@488	1623 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adamc@488	1624 return uw_Basis_unurlifyInt(ctx, s);
adamc@488	1625 }
adamc@488	1626
adamc@311	1627 static uw_Basis_string uw_unurlifyString_to(uw_context ctx, char r, char s) {
adamc@927	1628 char s1, s2 = s;
adamc@144	1629 int n;
adamc@136	1630
adamc@925	1631 if (*s2 == '_')
adamc@925	1632 ++s2;
adamc@925	1633 else if (s2[0] == '%' && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@925	1634 s2 += 3;
adamc@925	1635
adamc@927	1636 for (s1 = r; *s2; ++s1, ++s2) {
adamc@136	1637 char c = *s2;
adamc@136	1638
adamc@136	1639 switch (c) {
adamc@136	1640 case '+':
adamc@136	1641 *s1 = ' ';
adamc@136	1642 break;
adamc@136	1643 case '%':
adamc@169	1644 if (s2[1] == 0)
adamc@311	1645 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1646 if (s2[2] == 0)
adamc@311	1647 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1648 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@311	1649 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@136	1650 *s1 = n;
adamc@136	1651 s2 += 2;
adamc@136	1652 break;
adamc@136	1653 default:
adamc@136	1654 *s1 = c;
adamc@136	1655 }
adamc@136	1656 }
adamc@136	1657 *s1++ = 0;
adamc@144	1658 return s1;
adamc@144	1659 }
adamc@144	1660
adamc@311	1661 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	1662 char new_s = uw_unurlify_advance(s);
adamc@311	1663 uw_Basis_bool r;
adamc@186	1664
adamc@186	1665 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	1666 r = uw_Basis_False;
adamc@186	1667 else
adamc@311	1668 r = uw_Basis_True;
adamc@186	1669
adamc@186	1670 *s = new_s;
adamc@186	1671 return r;
adamc@186	1672 }
adamc@186	1673
adamc@311	1674 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	1675 char new_s = uw_unurlify_advance(s);
adamc@144	1676 char r, s1, *s2;
adamc@144	1677 int len, n;
adamc@144	1678
adamc@200	1679 len = strlen(*s);
adamc@311	1680 uw_check_heap(ctx, len + 1);
adamc@144	1681
adamc@666	1682 r = ctx->heap.front;
adamc@666	1683 ctx->heap.front = uw_unurlifyString_to(ctx, ctx->heap.front, *s);
adamc@136	1684 *s = new_s;
adamc@136	1685 return r;
adamc@120	1686 }
adamc@135	1687
adamc@135	1688
adamc@311	1689 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	1690 int len;
adamc@286	1691 char *r;
adamc@286	1692
adamc@311	1693 uw_check_heap(ctx, INTS_MAX);
adamc@666	1694 r = ctx->heap.front;
adamc@286	1695 sprintf(r, "%lld%n", n, &len);
adamc@666	1696 ctx->heap.front += len+1;
adamc@286	1697 return r;
adamc@286	1698 }
adamc@286	1699
adamc@428	1700 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	1701 int len;
adamc@286	1702
adamc@311	1703 uw_check(ctx, INTS_MAX);
adamc@666	1704 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1705 ctx->page.front += len;
adamc@428	1706
adamc@428	1707 return uw_unit_v;
adamc@286	1708 }
adamc@286	1709
adamc@311	1710 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	1711 int len;
adamc@286	1712 char *r;
adamc@286	1713
adamc@311	1714 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1715 r = ctx->heap.front;
adamc@286	1716 sprintf(r, "%g%n", n, &len);
adamc@666	1717 ctx->heap.front += len+1;
adamc@286	1718 return r;
adamc@286	1719 }
adamc@286	1720
adamc@428	1721 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	1722 int len;
adamc@286	1723
adamc@311	1724 uw_check(ctx, FLOATS_MAX);
adamc@666	1725 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1726 ctx->page.front += len;
adamc@428	1727
adamc@428	1728 return uw_unit_v;
adamc@286	1729 }
adamc@286	1730
adamc@311	1731 char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1732 char r, s2;
adamc@137	1733
adamc@311	1734 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	1735
adamc@666	1736 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@137	1737 char c = *s;
adamc@137	1738
adamc@137	1739 switch (c) {
adamc@137	1740 case '<':
adamc@137	1741 strcpy(s2, "<");
adamc@137	1742 s2 += 4;
adamc@137	1743 break;
adamc@137	1744 case '&':
adamc@137	1745 strcpy(s2, "&");
adamc@137	1746 s2 += 5;
adamc@137	1747 break;
adamc@137	1748 default:
adamc@137	1749 if (isprint(c))
adamc@137	1750 *s2++ = c;
adamc@137	1751 else {
adamc@137	1752 int len2;
adamc@137	1753 sprintf(s2, "&#%d;%n", c, &len2);
adamc@137	1754 s2 += len2;
adamc@137	1755 }
adamc@137	1756 }
adamc@137	1757 }
adamc@137	1758
adamc@137	1759 *s2++ = 0;
adamc@666	1760 ctx->heap.front = s2;
adamc@137	1761 return r;
adamc@135	1762 }
adamc@135	1763
adamc@428	1764 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	1765 uw_check(ctx, strlen(s) * 6);
adamc@135	1766
adamc@135	1767 for (; *s; s++) {
adamc@135	1768 char c = *s;
adamc@135	1769
adamc@135	1770 switch (c) {
adamc@135	1771 case '<':
adamc@311	1772 uw_write_unsafe(ctx, "<");
adamc@135	1773 break;
adamc@135	1774 case '&':
adamc@311	1775 uw_write_unsafe(ctx, "&");
adamc@135	1776 break;
adamc@135	1777 default:
adamc@135	1778 if (isprint(c))
adamc@311	1779 uw_writec_unsafe(ctx, c);
adamc@135	1780 else {
adamc@311	1781 uw_write_unsafe(ctx, "&#");
adamc@311	1782 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311	1783 uw_writec_unsafe(ctx, ';');
adamc@135	1784 }
adamc@135	1785 }
adamc@135	1786 }
adamc@428	1787
adamc@428	1788 return uw_unit_v;
adamc@135	1789 }
adamc@180	1790
adamc@311	1791 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1792 if (b == uw_Basis_False)
adamc@286	1793 return "False";
adamc@286	1794 else
adamc@286	1795 return "True";
adamc@286	1796 }
adamc@286	1797
adamc@428	1798 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1799 if (b == uw_Basis_False) {
adamc@311	1800 uw_check(ctx, 6);
adamc@666	1801 strcpy(ctx->page.front, "False");
adamc@666	1802 ctx->page.front += 5;
adamc@286	1803 } else {
adamc@311	1804 uw_check(ctx, 5);
adamc@666	1805 strcpy(ctx->page.front, "True");
adamc@666	1806 ctx->page.front += 4;
adamc@286	1807 }
adamc@428	1808
adamc@428	1809 return uw_unit_v;
adamc@286	1810 }
adamc@286	1811
adamc@436	1812 #define TIME_FMT "%x %X"
adamc@438	1813 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436	1814
adamc@436	1815 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436	1816 size_t len;
adamc@436	1817 char *r;
adamc@436	1818 struct tm stm;
adamc@436	1819
adamc@436	1820 if (localtime_r(&t, &stm)) {
adamc@436	1821 uw_check_heap(ctx, TIMES_MAX);
adamc@666	1822 r = ctx->heap.front;
adamc@436	1823 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	1824 ctx->heap.front += len+1;
adamc@436	1825 return r;
adamc@436	1826 } else
adamc@436	1827 return "<i>Invalid time</i>";
adamc@436	1828 }
adamc@436	1829
adamc@436	1830 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436	1831 size_t len;
adamc@436	1832 char *r;
adamc@436	1833 struct tm stm;
adamc@436	1834
adamc@436	1835 if (localtime_r(&t, &stm)) {
adamc@436	1836 uw_check(ctx, TIMES_MAX);
adamc@666	1837 r = ctx->page.front;
adamc@436	1838 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	1839 ctx->page.front += len;
adamc@436	1840 } else {
adamc@436	1841 uw_check(ctx, 20);
adamc@666	1842 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666	1843 ctx->page.front += 19;
adamc@436	1844 }
adamc@436	1845
adamc@436	1846 return uw_unit_v;
adamc@436	1847 }
adamc@436	1848
adamc@821	1849 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	1850 if (n >= 0 && n < strlen(s))
adamc@821	1851 return s[n];
adamc@821	1852 else
adamc@821	1853 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adamc@821	1854 }
adamc@821	1855
adamc@821	1856 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	1857 if (n >= 0 && n < strlen(s))
adamc@821	1858 return &s[n];
adamc@821	1859 else
adamc@821	1860 uw_error(ctx, FATAL, "Out-of-bounds strsuffix");
adamc@821	1861 }
adamc@821	1862
adamc@828	1863 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	1864 return strlen(s);
adamc@828	1865 }
adamc@828	1866
adamc@829	1867 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	1868 return strchr(s, ch);
adamc@829	1869 }
adamc@829	1870
adamc@831	1871 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	1872 return strcspn(s, chs);
adamc@831	1873 }
adamc@831	1874
adamc@829	1875 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	1876 uw_Basis_string r = strchr(s, ch);
adamc@829	1877 if (r == NULL)
adamc@829	1878 return NULL;
adamc@829	1879 else {
adamc@829	1880 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	1881 *nr = r - s;
adamc@829	1882 return nr;
adamc@829	1883 }
adamc@829	1884 }
adamc@829	1885
adamc@311	1886 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	1887 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	1888 char *s;
adamc@180	1889
adamc@311	1890 uw_check_heap(ctx, len);
adamc@180	1891
adamc@666	1892 s = ctx->heap.front;
adamc@180	1893
adamc@180	1894 strcpy(s, s1);
adamc@180	1895 strcat(s, s2);
adamc@666	1896 ctx->heap.front += len;
adamc@180	1897
adamc@180	1898 return s;
adamc@180	1899 }
adamc@278	1900
adamc@829	1901 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	1902 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	1903
adamc@829	1904 if (start < 0)
adamc@829	1905 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	1906 if (len < 0)
adamc@829	1907 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	1908 if (start + len > full_len)
adamc@829	1909 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	1910
adamc@829	1911 if (start + len == full_len)
adamc@829	1912 return &s[start];
adamc@829	1913 else {
adamc@829	1914 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	1915 memcpy(r, s+start, len);
adamc@829	1916 r[len] = 0;
adamc@829	1917 return r;
adamc@829	1918 }
adamc@829	1919
adamc@829	1920 }
adamc@829	1921
adamc@737	1922 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	1923 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	1924 char *s;
adamc@278	1925
adamc@311	1926 uw_check_heap(ctx, len);
adamc@278	1927
adamc@666	1928 s = ctx->heap.front;
adamc@278	1929
adamc@278	1930 strcpy(s, s1);
adamc@666	1931 ctx->heap.front += len;
adamc@278	1932
adamc@278	1933 return s;
adamc@278	1934 }
adamc@280	1935
adamc@737	1936 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	1937 if (s1)
adamc@737	1938 return uw_strdup(ctx, s1);
adamc@493	1939 else
adamc@493	1940 return NULL;
adamc@493	1941 }
adamc@493	1942
adamc@742	1943 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	1944 char *r = uw_malloc(ctx, len);
adamc@742	1945 memcpy(r, p, len);
adamc@742	1946 return r;
adamc@742	1947 }
adamc@280	1948
adamc@879	1949 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	1950
adamc@311	1951 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	1952 int len;
adamc@281	1953 char *r;
adamc@281	1954
adamc@311	1955 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	1956 r = ctx->heap.front;
adamc@879	1957 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	1958 ctx->heap.front += len+1;
adamc@281	1959 return r;
adamc@281	1960 }
adamc@281	1961
adamc@467	1962 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	1963 if (n == NULL)
adamc@467	1964 return "NULL";
adamc@467	1965 else
adamc@467	1966 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	1967 }
adamc@467	1968
adamc@879	1969 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879	1970
adamc@311	1971 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	1972 int len;
adamc@281	1973 char *r;
adamc@281	1974
adamc@311	1975 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	1976 r = ctx->heap.front;
adamc@879	1977 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	1978 ctx->heap.front += len+1;
adamc@281	1979 return r;
adamc@281	1980 }
adamc@281	1981
adamc@467	1982 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	1983 if (n == NULL)
adamc@467	1984 return "NULL";
adamc@467	1985 else
adamc@467	1986 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	1987 }
adamc@467	1988
adamc@879	1989 int uw_Estrings = 1;
adamc@879	1990 char *uw_sqlsuffixString = "::text";
adamc@281	1991
adamc@311	1992 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	1993 char r, s2;
adamc@280	1994
adamc@879	1995 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	1996
adamc@666	1997 r = s2 = ctx->heap.front;
adamc@879	1998 if (uw_Estrings)
adamc@879	1999 *s2++ = 'E';
adamc@280	2000 *s2++ = '\'';
adamc@280	2001
adamc@280	2002 for (; *s; s++) {
adamc@280	2003 char c = *s;
adamc@280	2004
adamc@280	2005 switch (c) {
adamc@280	2006 case '\'':
adamc@885	2007 if (uw_Estrings)
adamc@885	2008 strcpy(s2, "\\'");
adamc@885	2009 else
adamc@885	2010 strcpy(s2, "''");
adamc@280	2011 s2 += 2;
adamc@280	2012 break;
adamc@280	2013 case '\\':
adamc@885	2014 if (uw_Estrings) {
adamc@885	2015 strcpy(s2, "\\\\");
adamc@885	2016 s2 += 2;
adamc@885	2017 } else
adamc@885	2018 *s2++ = '\\';
adamc@280	2019 break;
adamc@280	2020 default:
adamc@280	2021 if (isprint(c))
adamc@280	2022 *s2++ = c;
adamc@879	2023 else if (uw_Estrings) {
adamc@737	2024 sprintf(s2, "\\%03o", c);
adamc@280	2025 s2 += 4;
adamc@280	2026 }
adamc@879	2027 else
adamc@879	2028 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280	2029 }
adamc@280	2030 }
adamc@280	2031
adamc@879	2032 *s2++ = '\'';
adamc@879	2033 strcpy(s2, uw_sqlsuffixString);
adamc@879	2034 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2035 return r;
adamc@280	2036 }
adamc@281	2037
adamc@879	2038 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2039
adamc@737	2040 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2041 char r, s2;
adamc@737	2042 size_t i;
adamc@737	2043
adamc@879	2044 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737	2045
adamc@737	2046 r = s2 = ctx->heap.front;
adamc@879	2047 if (uw_Estrings)
adamc@879	2048 *s2++ = 'E';
adamc@737	2049 *s2++ = '\'';
adamc@737	2050
adamc@737	2051 for (i = 0; i < b.size; ++i) {
adamc@737	2052 char c = b.data[i];
adamc@737	2053
adamc@737	2054 switch (c) {
adamc@737	2055 case '\'':
adamc@885	2056 if (uw_Estrings)
adamc@885	2057 strcpy(s2, "\\'");
adamc@885	2058 else
adamc@885	2059 strcpy(s2, "''");
adamc@737	2060 s2 += 2;
adamc@737	2061 break;
adamc@737	2062 case '\\':
adamc@885	2063 if (uw_Estrings) {
adamc@885	2064 strcpy(s2, "\\\\\\\\");
adamc@885	2065 s2 += 4;
adamc@885	2066 } else
adamc@885	2067 *s2++ = '\\';
adamc@737	2068 break;
adamc@737	2069 default:
adamc@737	2070 if (isprint(c))
adamc@737	2071 *s2++ = c;
adamc@879	2072 else if (uw_Estrings) {
adamc@737	2073 sprintf(s2, "\\\\%03o", c);
adamc@737	2074 s2 += 5;
adamc@737	2075 }
adamc@879	2076 else
adamc@879	2077 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737	2078 }
adamc@737	2079 }
adamc@737	2080
adamc@879	2081 *s2++ = '\'';
adamc@879	2082 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2083 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2084 return r;
adamc@737	2085 }
adamc@737	2086
adamc@682	2087 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2088 int len;
adamc@682	2089 char *r;
adamc@682	2090 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2091
adamc@682	2092 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2093 r = ctx->heap.front;
adamc@879	2094 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2095 ctx->heap.front += len+1;
adamc@682	2096 return r;
adamc@682	2097 }
adamc@682	2098
adamc@682	2099 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2100 int len;
adamc@682	2101 char *r;
adamc@682	2102 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2103
adamc@682	2104 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2105 r = ctx->heap.front;
adamc@682	2106 sprintf(r, "%lld%n", combo, &len);
adamc@682	2107 ctx->heap.front += len+1;
adamc@682	2108 return r;
adamc@682	2109 }
adamc@682	2110
adamc@879	2111 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2112
adamc@682	2113 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2114 int len;
adamc@682	2115 char *r;
adamc@682	2116
adamc@682	2117 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2118 r = ctx->heap.front;
adamc@879	2119 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2120 ctx->heap.front += len+1;
adamc@682	2121 return r;
adamc@682	2122 }
adamc@682	2123
adamc@682	2124 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2125 int len;
adamc@682	2126 char *r;
adamc@682	2127
adamc@682	2128 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2129 r = ctx->heap.front;
adamc@682	2130 sprintf(r, "%u%n", cli, &len);
adamc@682	2131 ctx->heap.front += len+1;
adamc@682	2132 return r;
adamc@682	2133 }
adamc@682	2134
adamc@467	2135 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2136 if (s == NULL)
adamc@467	2137 return "NULL";
adamc@467	2138 else
adamc@467	2139 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2140 }
adamc@467	2141
adamc@311	2142 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2143 if (b == uw_Basis_False)
adamc@281	2144 return "FALSE";
adamc@281	2145 else
adamc@281	2146 return "TRUE";
adamc@281	2147 }
adamc@282	2148
adamc@467	2149 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2150 if (b == NULL)
adamc@467	2151 return "NULL";
adamc@467	2152 else
adamc@467	2153 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2154 }
adamc@467	2155
adamc@439	2156 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2157 size_t len;
adamc@682	2158 char r, s;
adamc@682	2159 struct tm stm;
adamc@682	2160
adamc@682	2161 if (localtime_r(&t, &stm)) {
adamc@682	2162 s = uw_malloc(ctx, TIMES_MAX);
adamc@939	2163 --stm.tm_hour;
adamc@682	2164 len = strftime(s, TIMES_MAX, TIME_FMT, &stm);
adamc@682	2165 r = uw_malloc(ctx, len + 14);
adamc@682	2166 sprintf(r, "'%s'::timestamp", s);
adamc@682	2167 return r;
adamc@682	2168 } else
adamc@682	2169 return "<Invalid time>";
adamc@682	2170 }
adamc@682	2171
adamc@682	2172 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2173 size_t len;
adamc@439	2174 char *r;
adamc@439	2175 struct tm stm;
adamc@439	2176
adamc@439	2177 if (localtime_r(&t, &stm)) {
adamc@439	2178 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2179 r = ctx->heap.front;
adamc@939	2180 --stm.tm_hour;
adamc@439	2181 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2182 ctx->heap.front += len+1;
adamc@439	2183 return r;
adamc@439	2184 } else
adamc@439	2185 return "<Invalid time>";
adamc@439	2186 }
adamc@439	2187
adamc@467	2188 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2189 if (t == NULL)
adamc@467	2190 return "NULL";
adamc@467	2191 else
adamc@467	2192 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2193 }
adamc@467	2194
adamc@311	2195 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2196 static uw_Basis_int true = 1;
adamc@311	2197 static uw_Basis_int false = 0;
adamc@282	2198
adamc@311	2199 if (b == uw_Basis_False)
adamc@282	2200 return (char *)&false;
adamc@282	2201 else
adamc@282	2202 return (char *)&true;
adamc@282	2203 }
adamc@284	2204
adamc@311	2205 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2206 int len;
adamc@284	2207 char *r;
adamc@284	2208
adamc@311	2209 uw_check_heap(ctx, INTS_MAX);
adamc@666	2210 r = ctx->heap.front;
adamc@284	2211 sprintf(r, "%lld%n", n, &len);
adamc@666	2212 ctx->heap.front += len+1;
adamc@284	2213 return r;
adamc@284	2214 }
adamc@285	2215
adamc@311	2216 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2217 int len;
adamc@285	2218 char *r;
adamc@285	2219
adamc@311	2220 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2221 r = ctx->heap.front;
adamc@285	2222 sprintf(r, "%g%n", n, &len);
adamc@666	2223 ctx->heap.front += len+1;
adamc@285	2224 return r;
adamc@285	2225 }
adamc@285	2226
adamc@821	2227 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2228 char *r = uw_malloc(ctx, 2);
adamc@821	2229 r[0] = ch;
adamc@821	2230 r[1] = 0;
adamc@821	2231 return r;
adamc@821	2232 }
adamc@821	2233
adamc@311	2234 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2235 if (b == uw_Basis_False)
adamc@285	2236 return "False";
adamc@285	2237 else
adamc@285	2238 return "True";
adamc@285	2239 }
adamc@288	2240
adamc@436	2241 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436	2242 size_t len;
adamc@436	2243 char *r;
adamc@436	2244 struct tm stm;
adamc@436	2245
adamc@436	2246 if (localtime_r(&t, &stm)) {
adamc@436	2247 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2248 r = ctx->heap.front;
adamc@436	2249 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2250 ctx->heap.front += len+1;
adamc@436	2251 return r;
adamc@436	2252 } else
adamc@436	2253 return "<Invalid time>";
adamc@436	2254 }
adamc@288	2255
adamc@311	2256 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2257 char *endptr;
adamc@311	2258 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2259
adamc@288	2260 if (s != '\0' && endptr == '\0') {
adamc@311	2261 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2262 *r = n;
adamc@288	2263 return r;
adamc@288	2264 } else
adamc@288	2265 return NULL;
adamc@288	2266 }
adamc@289	2267
adamc@311	2268 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2269 char *endptr;
adamc@311	2270 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2271
adamc@289	2272 if (s != '\0' && endptr == '\0') {
adamc@311	2273 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2274 *r = n;
adamc@289	2275 return r;
adamc@289	2276 } else
adamc@289	2277 return NULL;
adamc@289	2278 }
adamc@289	2279
adamc@821	2280 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2281 if (s[0] == 0) {
adamc@821	2282 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2283 r[0] = 0;
adamc@821	2284 return r;
adamc@821	2285 } else if (s[1] != 0)
adamc@821	2286 return NULL;
adamc@821	2287 else {
adamc@821	2288 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2289 r[0] = s[0];
adamc@821	2290 return r;
adamc@821	2291 }
adamc@821	2292 }
adamc@821	2293
adamc@311	2294 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2295 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2296 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2297
adamc@289	2298 if (!strcasecmp (s, "True"))
adamc@289	2299 return &true;
adamc@289	2300 else if (!strcasecmp (s, "False"))
adamc@289	2301 return &false;
adamc@289	2302 else
adamc@289	2303 return NULL;
adamc@289	2304 }
adamc@292	2305
adamc@436	2306 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2307 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2308 struct tm stm;
adamc@436	2309
adamc@439	2310 if (dot) {
adamc@439	2311 *dot = 0;
adamc@439	2312 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2313 *dot = '.';
adamc@439	2314 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2315 *r = mktime(&stm);
adamc@439	2316 return r;
adamc@439	2317 }
adamc@439	2318 else {
adamc@439	2319 *dot = '.';
adamc@439	2320 return NULL;
adamc@439	2321 }
adamc@436	2322 }
adamc@439	2323 else {
adamc@439	2324 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2325 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2326 *r = mktime(&stm);
adamc@439	2327 return r;
adamc@439	2328 }
adamc@439	2329 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2330 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2331 *r = mktime(&stm);
adamc@439	2332 return r;
adamc@439	2333 }
adamc@439	2334 else
adamc@439	2335 return NULL;
adamc@439	2336 }
adamc@436	2337 }
adamc@436	2338
adamc@311	2339 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2340 char *endptr;
adamc@311	2341 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2342
adamc@292	2343 if (s != '\0' && endptr == '\0')
adamc@292	2344 return n;
adamc@292	2345 else
adamc@311	2346 uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292	2347 }
adamc@293	2348
adamc@682	2349 #include <errno.h>
adamc@682	2350
adamc@678	2351 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2352 unsigned long long n;
adamc@682	2353
adamc@682	2354 if (sscanf(s, "%llu", &n) < 1)
adamc@682	2355 uw_error(ctx, FATAL, "Can't parse channel: %s", s);
adamc@682	2356 else {
adamc@682	2357 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2358 return ch;
adamc@682	2359 }
adamc@682	2360 }
adamc@682	2361
adamc@682	2362 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2363 char *endptr;
adamc@682	2364 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2365
adamc@678	2366 if (s != '\0' && endptr == '\0')
adamc@678	2367 return n;
adamc@678	2368 else
adamc@682	2369 uw_error(ctx, FATAL, "Can't parse client: %s", s);
adamc@678	2370 }
adamc@678	2371
adamc@311	2372 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2373 char *endptr;
adamc@311	2374 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2375
adamc@293	2376 if (s != '\0' && endptr == '\0')
adamc@293	2377 return n;
adamc@293	2378 else
adamc@311	2379 uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293	2380 }
adamc@293	2381
adamc@821	2382 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2383 if (s[0] == 0)
adamc@821	2384 return 0;
adamc@821	2385 else if (s[1] != 0)
adamc@821	2386 uw_error(ctx, FATAL, "Can't parse char: %s", s);
adamc@821	2387 else
adamc@821	2388 return s[0];
adamc@821	2389 }
adamc@821	2390
adamc@311	2391 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2392 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2393 return uw_Basis_True;
adamc@296	2394 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2395 return uw_Basis_False;
adamc@293	2396 else
adamc@311	2397 uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293	2398 }
adamc@436	2399
adamc@436	2400 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2401 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2402 struct tm stm = {};
adamc@436	2403
adamc@438	2404 if (dot) {
adamc@438	2405 *dot = 0;
adamc@438	2406 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2407 *dot = '.';
adamc@438	2408 return mktime(&stm);
adamc@438	2409 }
adamc@438	2410 else {
adamc@438	2411 *dot = '.';
adamc@438	2412 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2413 }
adamc@438	2414 }
adamc@438	2415 else {
adamc@439	2416 if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439	2417 return mktime(&stm);
adamc@439	2418 else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438	2419 return mktime(&stm);
adamc@438	2420 else
adamc@438	2421 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2422 }
adamc@436	2423 }
adamc@457	2424
adamc@939	2425 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adamc@939	2426 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@939	2427 struct tm stm = {};
adamc@939	2428
adamc@939	2429 if (dot) {
adamc@939	2430 *dot = 0;
adamc@939	2431 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@939	2432 *dot = '.';
adamc@939	2433 --stm.tm_hour;
adamc@939	2434 return mktime(&stm);
adamc@939	2435 }
adamc@939	2436 else {
adamc@939	2437 *dot = '.';
adamc@939	2438 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2439 }
adamc@939	2440 }
adamc@939	2441 else {
adamc@939	2442 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@939	2443 --stm.tm_hour;
adamc@939	2444 return mktime(&stm);
adamc@939	2445 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@939	2446 --stm.tm_hour;
adamc@939	2447 return mktime(&stm);
adamc@939	2448 } else
adamc@939	2449 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2450 }
adamc@939	2451 }
adamc@939	2452
adamc@742	2453 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	2454 char *r = ctx->heap.front;
adamc@742	2455 uw_Basis_blob b = {len, r};
adamc@742	2456
adamc@742	2457 uw_check_heap(ctx, len);
adamc@742	2458
adamc@742	2459 while (*s) {
adamc@742	2460 if (s[0] == '\\') {
adamc@742	2461 if (s[1] == '\\') {
adamc@742	2462 *r++ = '\\';
adamc@742	2463 s += 2;
adamc@742	2464 } else if (isdigit(s[1]) && isdigit(s[2]) && isdigit(s[3])) {
adamc@742	2465 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	2466 s += 4;
adamc@742	2467 }
adamc@742	2468 else {
adamc@742	2469 *r++ = '\\';
adamc@742	2470 ++s;
adamc@742	2471 }
adamc@742	2472 } else {
adamc@742	2473 *r++ = s[0];
adamc@742	2474 ++s;
adamc@742	2475 }
adamc@742	2476 }
adamc@742	2477
adamc@742	2478 b.size = r - ctx->heap.front;
adamc@742	2479 ctx->heap.front = r;
adamc@742	2480 return b;
adamc@742	2481 }
adamc@742	2482
adamc@463	2483 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	2484 int len = strlen(c);
adamc@854	2485 char *p = ctx->outHeaders.start;
adamc@474	2486
adamc@474	2487 while (p = strstr(p, "\nSet-Cookie: ")) {
adamc@474	2488 char *p2;
adamc@474	2489 p += 13;
adamc@474	2490 p2 = strchr(p, '=');
adamc@474	2491
adamc@474	2492 if (p2) {
adamc@474	2493 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	2494
adamc@474	2495 if (!strncasecmp(p, c, p2 - p)) {
adamc@474	2496 char *ret = uw_malloc(ctx, sz + 1);
adamc@474	2497 memcpy(ret, p2+1, sz);
adamc@474	2498 ret[sz] = 0;
adamc@474	2499 return ret;
adamc@474	2500 }
adamc@474	2501 }
adamc@474	2502 }
adamc@463	2503
adamc@854	2504 if (p = uw_Basis_requestHeader(ctx, "Cookie")) {
adamc@854	2505 while (1) {
adamc@854	2506 if (!strncmp(p, c, len) && p[len] == '=')
adamc@854	2507 return p + 1 + len;
adamc@854	2508 else if (p = strchr(p, ';'))
adamc@854	2509 p += 2;
adamc@463	2510 else
adamc@463	2511 return NULL;
adamc@463	2512 }
adamc@463	2513 }
adamc@792	2514
adamc@792	2515 return NULL;
adamc@457	2516 }
adamc@462	2517
adamc@466	2518 uw_unit uw_Basis_set_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c, uw_Basis_string v) {
adamc@462	2519 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	2520 uw_write_header(ctx, c);
adamc@462	2521 uw_write_header(ctx, "=");
adamc@462	2522 uw_write_header(ctx, v);
adamc@466	2523 uw_write_header(ctx, "; path=");
adamc@466	2524 uw_write_header(ctx, prefix);
adamc@462	2525 uw_write_header(ctx, "\r\n");
adamc@462	2526
adamc@462	2527 return uw_unit_v;
adamc@462	2528 }
adamc@667	2529
adamc@682	2530 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	2531 unsigned i;
adamc@682	2532 delta *d;
adamc@671	2533
adamc@682	2534 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	2535 if (ctx->deltas[i].client == client)
adamc@682	2536 return &ctx->deltas[i];
adamc@671	2537
adamc@682	2538 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@682	2539 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adamc@682	2540 buf_init(&ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	2541 }
adamc@671	2542
adamc@682	2543 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	2544 d->client = client;
adamc@682	2545 buf_reset(&d->msgs);
adamc@682	2546 return d;
adamc@671	2547 }
adamc@671	2548
adamc@668	2549 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	2550 if (ctx->client == NULL)
adamc@682	2551 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	2552
adamc@682	2553 return new_channel(ctx->client);
adamc@668	2554 }
adamc@668	2555
adamc@668	2556 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	2557 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	2558 size_t len;
adamc@682	2559 int preLen;
adamc@682	2560 char pre[INTS_MAX + 2];
adamc@668	2561
adamc@682	2562 len = strlen(msg);
adamc@682	2563
adamc@682	2564 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	2565
adamc@682	2566 buf_append(&d->msgs, pre, preLen);
adamc@682	2567 buf_append(&d->msgs, msg, len);
adamc@682	2568 buf_append(&d->msgs, "\n", 1);
adamc@671	2569
adamc@671	2570 return uw_unit_v;
adamc@668	2571 }
adamc@671	2572
adamc@671	2573 int uw_db_commit(uw_context);
adamc@671	2574 int uw_db_rollback(uw_context);
adamc@671	2575
adamc@671	2576 void uw_commit(uw_context ctx) {
adamc@682	2577 unsigned i;
adamc@671	2578
adamc@771	2579 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2580 if (ctx->transactionals[i].rollback != NULL)
adamc@771	2581 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771	2582
adamc@771	2583 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2584 if (ctx->transactionals[i].rollback == NULL)
adamc@771	2585 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771	2586
adamc@771	2587 if (uw_db_commit(ctx))
adamc@671	2588 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@682	2589
adamc@682	2590 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	2591 delta *d = &ctx->deltas[i];
adamc@682	2592 client *c = find_client(d->client);
adamc@682	2593
adamc@682	2594 assert (c != NULL && c->mode == USED);
adamc@682	2595
adamc@685	2596 client_send(c, &d->msgs);
adamc@682	2597 }
adamc@682	2598
adamc@682	2599 if (ctx->client)
adamc@685	2600 release_client(ctx->client);
adamc@771	2601
adamc@771	2602 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2603 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@916	2604
adamc@916	2605 // Splice script data into appropriate part of page
adamc@921	2606 if (ctx->returning_blob \|\| ctx->script_header[0] == 0)
adamc@916	2607 ;
adamc@916	2608 else if (buf_used(&ctx->script) == 0) {
adamc@916	2609 size_t len = strlen(ctx->script_header);
adamc@916	2610 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2611 if (start) {
adamc@916	2612 buf_check(&ctx->page, buf_used(&ctx->page) - 4 + len);
adamc@917	2613 start = strstr(ctx->page.start, "<sc>");
adamc@916	2614 memmove(start + len, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2615 ctx->page.front += len - 4;
adamc@916	2616 memcpy(start, ctx->script_header, len);
adamc@916	2617 }
adamc@916	2618 } else {
adamc@916	2619 size_t lenH = strlen(ctx->script_header), len = buf_used(&ctx->script);
adamc@916	2620 size_t lenP = lenH + 40 + len;
adamc@916	2621 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2622 if (start) {
adamc@916	2623 buf_check(&ctx->page, buf_used(&ctx->page) - 4 + lenP);
adamc@917	2624 start = strstr(ctx->page.start, "<sc>");
adamc@916	2625 memmove(start + lenP, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2626 ctx->page.front += lenP - 4;
adamc@916	2627 memcpy(start, ctx->script_header, lenH);
adamc@916	2628 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916	2629 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916	2630 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916	2631 }
adamc@916	2632 }
adamc@671	2633 }
adamc@671	2634
adamc@671	2635 int uw_rollback(uw_context ctx) {
adamc@771	2636 size_t i;
adamc@885	2637 cleanup *cl;
adamc@771	2638
adamc@682	2639 if (ctx->client)
adamc@685	2640 release_client(ctx->client);
adamc@671	2641
adamc@885	2642 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@885	2643 cl->func(cl->arg);
adamc@885	2644
adamc@885	2645 ctx->cleanup_front = ctx->cleanup;
adamc@885	2646
adamc@771	2647 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2648 if (ctx->transactionals[i].rollback != NULL)
adamc@771	2649 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@771	2650
adamc@771	2651 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2652 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@771	2653
adamc@671	2654 return uw_db_rollback(ctx);
adamc@671	2655 }
adamc@683	2656
adamc@771	2657 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adamc@771	2658 uw_callback free) {
adamc@771	2659 if (commit == NULL)
adamc@771	2660 uw_error(ctx, FATAL, "uw_register_transactional: NULL commit callback");
adamc@771	2661
adamc@771	2662 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@771	2663 ctx->transactionals = realloc(ctx->transactionals, ctx->used_transactionals+1);
adamc@771	2664 ++ctx->n_transactionals;
adamc@771	2665 }
adamc@771	2666
adamc@771	2667 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	2668 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	2669 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	2670 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	2671 }
adamc@771	2672
adamc@683	2673
adamc@683	2674 // "Garbage collection"
adamc@683	2675
adamc@683	2676 void uw_expunger(uw_context ctx, uw_Basis_client cli);
adamc@683	2677
adamc@683	2678 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli) {
adamc@683	2679 int r = setjmp(ctx->jmp_buf);
adamc@683	2680
adamc@684	2681 if (r == 0) {
adamc@684	2682 if (uw_db_begin(ctx))
adamc@684	2683 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@683	2684 uw_expunger(ctx, cli);
adamc@684	2685 if (uw_db_commit(ctx))
adamc@684	2686 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@684	2687 }
adamc@683	2688
adamc@683	2689 return r;
adamc@683	2690 }
adamc@683	2691
adamc@683	2692 void uw_prune_clients(uw_context ctx) {
adamc@683	2693 client c, next, *prev = NULL;
adamc@683	2694 time_t cutoff;
adamc@683	2695
adamc@683	2696 cutoff = time(NULL) - uw_timeout;
adamc@683	2697
adamc@683	2698 pthread_mutex_lock(&clients_mutex);
adamc@683	2699
adamc@683	2700 for (c = clients_used; c; c = next) {
adamc@683	2701 next = c->next;
adamc@683	2702 pthread_mutex_lock(&c->lock);
adamc@685	2703 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	2704 failure_kind fk = UNLIMITED_RETRY;
adamc@683	2705 if (prev)
adamc@683	2706 prev->next = next;
adamc@683	2707 else
adamc@683	2708 clients_used = next;
adamc@684	2709 uw_reset(ctx);
adamc@683	2710 while (fk == UNLIMITED_RETRY) {
adamc@683	2711 fk = uw_expunge(ctx, c->id);
adamc@684	2712 if (fk == UNLIMITED_RETRY) {
adamc@684	2713 uw_db_rollback(ctx);
adamc@684	2714 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	2715 }
adamc@683	2716 }
adamc@684	2717 if (fk == SUCCESS)
adamc@684	2718 free_client(c);
adamc@684	2719 else {
adamc@684	2720 uw_db_rollback(ctx);
adamc@856	2721 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@684	2722 }
adamc@683	2723 }
adamc@683	2724 else
adamc@683	2725 prev = c;
adamc@683	2726 pthread_mutex_unlock(&c->lock);
adamc@683	2727 }
adamc@683	2728
adamc@683	2729 pthread_mutex_unlock(&clients_mutex);
adamc@683	2730 }
adamc@687	2731
adamc@687	2732 void uw_initializer(uw_context ctx);
adamc@687	2733
adamc@687	2734 failure_kind uw_initialize(uw_context ctx) {
adamc@687	2735 int r = setjmp(ctx->jmp_buf);
adamc@687	2736
adamc@687	2737 if (r == 0) {
adamc@687	2738 if (uw_db_begin(ctx))
adamc@687	2739 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@687	2740 uw_initializer(ctx);
adamc@687	2741 if (uw_db_commit(ctx))
adamc@687	2742 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	2743 }
adamc@687	2744
adamc@687	2745 return r;
adamc@687	2746 }
adamc@717	2747
adamc@770	2748 extern int uw_check_url(const char *);
adamc@770	2749 extern int uw_check_mime(const char *);
adamc@770	2750
adamc@717	2751 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@770	2752 if (uw_check_url(s))
adamc@770	2753 return s;
adamc@770	2754 else
adamc@770	2755 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	2756 }
adamc@734	2757
adamc@770	2758 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@770	2759 if (uw_check_url(s))
adamc@770	2760 return s;
adamc@770	2761 else
adamc@770	2762 return NULL;
adamc@770	2763 }
adamc@770	2764
adamc@770	2765 int mime_format(const char *s) {
adamc@770	2766 for (; *s; ++s)
adamc@770	2767 if (!isalnum(s) && s != '/' && s != '-' && s != '.')
adamc@770	2768 return 0;
adamc@770	2769
adamc@770	2770 return 1;
adamc@770	2771 }
adamc@770	2772
adamc@741	2773 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	2774 if (!mime_format(s))
adamc@770	2775 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	2776
adamc@770	2777 if (uw_check_mime(s))
adamc@770	2778 return s;
adamc@770	2779 else
adamc@770	2780 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	2781 }
adamc@770	2782
adamc@770	2783 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	2784 if (!mime_format(s))
adamc@770	2785 return NULL;
adamc@770	2786
adamc@770	2787 if (uw_check_mime(s))
adamc@770	2788 return s;
adamc@770	2789 else
adamc@770	2790 return NULL;
adamc@741	2791 }
adamc@741	2792
adamc@734	2793 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	2794 return s ? s : "";
adamc@734	2795 }
adamc@734	2796
adamc@734	2797 extern int uw_hash_blocksize;
adamc@734	2798
adamc@734	2799 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	2800 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	2801 int i;
adamc@734	2802
adamc@734	2803 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	2804 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	2805
adamc@734	2806 return r;
adamc@734	2807 }
adamc@734	2808
adamc@734	2809 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@734	2810 return uw_cookie_sig(ctx);
adamc@734	2811 }
adamc@737	2812
adamc@737	2813 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	2814 return f.name;
adamc@737	2815 }
adamc@737	2816
adamc@740	2817 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	2818 return f.type;
adamc@740	2819 }
adamc@740	2820
adamc@745	2821 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	2822 return b.size;
adamc@745	2823 }
adamc@745	2824
adamc@737	2825 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	2826 return f.data;
adamc@737	2827 }
adamc@741	2828
adamc@741	2829 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	2830 cleanup *cl;
adamc@741	2831 int len;
adamc@741	2832
adamc@921	2833 ctx->returning_blob = 1;
adamc@741	2834 buf_reset(&ctx->outHeaders);
adamc@741	2835 buf_reset(&ctx->page);
adamc@741	2836
adamc@856	2837 uw_write_header(ctx, on_success);
adamc@856	2838 uw_write_header(ctx, "Content-Type: ");
adamc@741	2839 uw_write_header(ctx, mimeType);
adamc@741	2840 uw_write_header(ctx, "\r\nContent-Length: ");
adamc@741	2841 buf_check(&ctx->outHeaders, INTS_MAX);
adamc@741	2842 sprintf(ctx->outHeaders.front, "%d%n", b.size, &len);
adamc@741	2843 ctx->outHeaders.front += len;
adamc@741	2844 uw_write_header(ctx, "\r\n");
adamc@741	2845
adamc@741	2846 buf_append(&ctx->page, b.data, b.size);
adamc@741	2847
adamc@741	2848 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	2849 cl->func(cl->arg);
adamc@741	2850
adamc@741	2851 ctx->cleanup_front = ctx->cleanup;
adamc@741	2852
adamc@741	2853 longjmp(ctx->jmp_buf, RETURN_BLOB);
adamc@741	2854 }
adamc@874	2855
adamc@874	2856 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adamc@874	2857 uw_Basis_string r = uw_malloc(ctx, strlen(s) + 1);
adamc@874	2858
adamc@874	2859 for (; *s; ++s) {
adamc@874	2860 if (s[0] == '\'') {
adamc@874	2861 *r++ = '\'';
adamc@874	2862 for (++s; *s; ++s) {
adamc@874	2863 if (s[0] == '\'') {
adamc@874	2864 *r++ = '\'';
adamc@874	2865 break;
adamc@874	2866 } else if (s[0] == '\\') {
adamc@874	2867 if (s[1] == '\\') {
adamc@874	2868 *r++ = '\\';
adamc@874	2869 *r++ = '\\';
adamc@874	2870 ++s;
adamc@874	2871 } else if (s[1] == '\'') {
adamc@874	2872 *r++ = '\\';
adamc@874	2873 *r++ = '\'';
adamc@874	2874 ++s;
adamc@874	2875 } else
adamc@874	2876 *r++ = '\'';
adamc@874	2877 } else
adamc@874	2878 *r++ = s[0];
adamc@874	2879 }
adamc@874	2880 if (*s == 0) break;
adamc@874	2881 } else if (s[0] == 'T' && s[1] == '.')
adamc@874	2882 ++s;
adamc@874	2883 else
adamc@874	2884 *r++ = s[0];
adamc@874	2885 }
adamc@874	2886
adamc@874	2887 return r;
adamc@874	2888 }
adamc@874	2889
adamc@922	2890 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	2891 va_list ap;
adamc@922	2892 size_t len = 1;
adamc@922	2893 char s, r, *s2;
adamc@922	2894
adamc@922	2895 va_start(ap, ctx);
adamc@922	2896 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	2897 len += strlen(s);
adamc@922	2898 va_end(ap);
adamc@922	2899
adamc@922	2900 r = uw_malloc(ctx, len);
adamc@922	2901 va_start(ap, ctx);
adamc@922	2902 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	2903 while (*s)
adamc@922	2904 s2++ = s++;
adamc@922	2905 va_end(ap);
adamc@922	2906 *s2 = 0;
adamc@922	2907
adamc@922	2908 return r;
adamc@922	2909 }

Mercurial > urweb

annotate src/c/urweb.c @ 987:6dd122f10c0c