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

annotate src/c/urweb.c @ 1027:be1aec7333a5

Saving paper assignments

author	Adam Chlipala <adamc@hcoop.net>
date	Mon, 02 Nov 2009 14:11:08 -0500
parents	7facf72aaf0a
children	dcc6093e9575

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@1027	1216 case '\'':
adamc@1027	1217 strcpy(s2, "\\047");
adamc@1027	1218 s2 += 4;
adamc@1027	1219 break;
adamc@574	1220 case '\\':
adamc@574	1221 strcpy(s2, "\\\\");
adamc@574	1222 s2 += 2;
adamc@574	1223 break;
adamc@574	1224 default:
adamc@574	1225 if (isprint(c))
adamc@574	1226 *s2++ = c;
adamc@574	1227 else {
adamc@574	1228 sprintf(s2, "\\%3o", c);
adamc@574	1229 s2 += 4;
adamc@574	1230 }
adamc@574	1231 }
adamc@574	1232 }
adamc@574	1233
adamc@574	1234 strcpy(s2, "\"");
adamc@910	1235 ctx->heap.front = s2 + 2;
adamc@574	1236 return r;
adamc@574	1237 }
adamc@574	1238
adamc@1025	1239 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1025	1240 char r, s2;
adamc@1025	1241
adamc@1025	1242 uw_check_heap(ctx, 6);
adamc@1025	1243
adamc@1025	1244 r = s2 = ctx->heap.front;
adamc@1025	1245 *s2++ = '"';
adamc@1025	1246
adamc@1025	1247 switch (c) {
adamc@1025	1248 case '"':
adamc@1025	1249 strcpy(s2, "\\\"");
adamc@1025	1250 s2 += 2;
adamc@1025	1251 break;
adamc@1027	1252 case '\'':
adamc@1027	1253 strcpy(s2, "\\047");
adamc@1027	1254 s2 += 4;
adamc@1027	1255 break;
adamc@1025	1256 case '\\':
adamc@1025	1257 strcpy(s2, "\\\\");
adamc@1025	1258 s2 += 2;
adamc@1025	1259 break;
adamc@1025	1260 default:
adamc@1025	1261 if (isprint(c))
adamc@1025	1262 *s2++ = c;
adamc@1025	1263 else {
adamc@1025	1264 sprintf(s2, "\\%3o", c);
adamc@1025	1265 s2 += 4;
adamc@1025	1266 }
adamc@1025	1267 }
adamc@1025	1268
adamc@1025	1269 strcpy(s2, "\"");
adamc@1025	1270 ctx->heap.front = s2 + 2;
adamc@1025	1271 return r;
adamc@1025	1272 }
adamc@1025	1273
adamc@574	1274 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1275 char r, s2;
adamc@574	1276
adamc@574	1277 uw_check_script(ctx, strlen(s) * 4 + 2);
adamc@574	1278
adamc@666	1279 r = s2 = ctx->script.front;
adamc@574	1280 *s2++ = '"';
adamc@574	1281
adamc@574	1282 for (; *s; s++) {
adamc@574	1283 char c = *s;
adamc@574	1284
adamc@574	1285 switch (c) {
adamc@577	1286 case '\'':
adamc@1027	1287 strcpy(s2, "\\");
adamc@574	1288 s2 += 2;
adamc@574	1289 break;
adamc@574	1290 case '\\':
adamc@574	1291 strcpy(s2, "\\\\");
adamc@574	1292 s2 += 2;
adamc@574	1293 break;
adamc@574	1294 default:
adamc@574	1295 if (isprint(c))
adamc@574	1296 *s2++ = c;
adamc@574	1297 else {
adamc@574	1298 sprintf(s2, "\\%3o", c);
adamc@574	1299 s2 += 4;
adamc@574	1300 }
adamc@574	1301 }
adamc@574	1302 }
adamc@574	1303
adamc@574	1304 strcpy(s2, "\"");
adamc@666	1305 ctx->script.front = s2 + 1;
adamc@574	1306 return r;
adamc@574	1307 }
adamc@574	1308
adamc@682	1309 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1310 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1311 return "null";
adamc@682	1312 else {
adamc@682	1313 int len;
adamc@682	1314 char *r;
adamc@682	1315
adamc@682	1316 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1317 r = ctx->heap.front;
adamc@682	1318 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1319 ctx->heap.front += len+1;
adamc@682	1320 return r;
adamc@682	1321 }
adamc@682	1322 }
adamc@682	1323
adamc@577	1324 uw_Basis_int uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1325 int len;
adamc@577	1326 size_t s_len = strlen(s);
adamc@562	1327
adamc@970	1328 uw_check_script(ctx, 18 + INTS_MAX + s_len);
adamc@970	1329 sprintf(ctx->script.front, "var s%d=sc(exec(%n", ctx->source_count, &len);
adamc@666	1330 ctx->script.front += len;
adamc@666	1331 strcpy(ctx->script.front, s);
adamc@666	1332 ctx->script.front += s_len;
adamc@970	1333 strcpy(ctx->script.front, "));");
adamc@972	1334 ctx->script.front += 3;
adamc@562	1335
adamc@565	1336 return ctx->source_count++;
adamc@117	1337 }
adamc@117	1338
adamc@577	1339 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_int n, uw_Basis_string s) {
adamc@577	1340 int len;
adamc@577	1341 size_t s_len = strlen(s);
adamc@577	1342
adamc@970	1343 uw_check_script(ctx, 12 + INTS_MAX + s_len);
adamc@970	1344 sprintf(ctx->script.front, "sv(s%d,exec(%n", (int)n, &len);
adamc@666	1345 ctx->script.front += len;
adamc@666	1346 strcpy(ctx->script.front, s);
adamc@666	1347 ctx->script.front += s_len;
adamc@970	1348 strcpy(ctx->script.front, "));");
adamc@972	1349 ctx->script.front += 3;
adamc@577	1350
adamc@577	1351 return uw_unit_v;
adamc@577	1352 }
adamc@577	1353
adamc@311	1354 static void uw_check(uw_context ctx, size_t extra) {
adamc@667	1355 buf_check(&ctx->page, extra);
adamc@117	1356 }
adamc@117	1357
adamc@311	1358 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1359 *(ctx->page.front)++ = c;
adamc@117	1360 }
adamc@117	1361
adamc@311	1362 void uw_writec(uw_context ctx, char c) {
adamc@311	1363 uw_check(ctx, 1);
adamc@311	1364 uw_writec_unsafe(ctx, c);
adamc@117	1365 }
adamc@117	1366
adamc@311	1367 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1368 int len = strlen(s);
adamc@666	1369 memcpy(ctx->page.front, s, len);
adamc@666	1370 ctx->page.front += len;
adamc@117	1371 }
adamc@117	1372
adamc@311	1373 void uw_write(uw_context ctx, const char* s) {
adamc@311	1374 uw_check(ctx, strlen(s) + 1);
adamc@311	1375 uw_write_unsafe(ctx, s);
adamc@666	1376 *ctx->page.front = 0;
adamc@102	1377 }
adamc@106	1378
adamc@311	1379 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1380 char *result;
adamc@136	1381 int len;
adamc@311	1382 uw_check_heap(ctx, INTS_MAX);
adamc@666	1383 result = ctx->heap.front;
adamc@276	1384 sprintf(result, "%lld%n", n, &len);
adamc@666	1385 ctx->heap.front += len+1;
adamc@136	1386 return result;
adamc@106	1387 }
adamc@106	1388
adamc@311	1389 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1390 char *result;
adamc@136	1391 int len;
adamc@311	1392 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1393 result = ctx->heap.front;
adamc@136	1394 sprintf(result, "%g%n", n, &len);
adamc@666	1395 ctx->heap.front += len+1;
adamc@136	1396 return result;
adamc@106	1397 }
adamc@106	1398
adamc@311	1399 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1400 int len = strlen(s);
adamc@136	1401 char result, p;
adamc@311	1402 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1403
adamc@666	1404 result = p = ctx->heap.front;
adamc@136	1405
adamc@136	1406 for (; *s; s++) {
adamc@136	1407 char c = *s;
adamc@136	1408
adamc@136	1409 if (c == '"') {
adamc@136	1410 strcpy(p, """);
adamc@136	1411 p += 6;
adamc@136	1412 } else if (c == '&') {
adamc@136	1413 strcpy(p, "&");
adamc@136	1414 p += 5;
adamc@136	1415 }
adamc@136	1416 else if (isprint(c))
adamc@136	1417 *p++ = c;
adamc@136	1418 else {
adamc@136	1419 int len2;
adamc@136	1420 sprintf(p, "&#%d;%n", c, &len2);
adamc@136	1421 p += len2;
adamc@136	1422 }
adamc@136	1423 }
adamc@136	1424
adamc@137	1425 *p++ = 0;
adamc@666	1426 ctx->heap.front = p;
adamc@136	1427 return result;
adamc@106	1428 }
adamc@106	1429
adamc@1011	1430 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1431 char result, p;
adamc@1011	1432 uw_check_heap(ctx, 7);
adamc@1011	1433
adamc@1011	1434 result = p = ctx->heap.front;
adamc@1011	1435
adamc@1011	1436 if (c == '"') {
adamc@1011	1437 strcpy(p, """);
adamc@1011	1438 p += 6;
adamc@1011	1439 } else if (c == '&') {
adamc@1011	1440 strcpy(p, "&");
adamc@1011	1441 p += 5;
adamc@1011	1442 }
adamc@1011	1443 else if (isprint(c))
adamc@1011	1444 *p++ = c;
adamc@1011	1445 else {
adamc@1011	1446 int len2;
adamc@1011	1447 sprintf(p, "&#%d;%n", c, &len2);
adamc@1011	1448 p += len2;
adamc@1011	1449 }
adamc@1011	1450
adamc@1011	1451 *p++ = 0;
adamc@1011	1452 ctx->heap.front = p;
adamc@1011	1453 return result;
adamc@1011	1454 }
adamc@1011	1455
adamc@721	1456 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1457 return s;
adamc@721	1458 }
adamc@721	1459
adamc@311	1460 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1461 int len;
adamc@117	1462
adamc@666	1463 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1464 ctx->page.front += len;
adamc@106	1465 }
adamc@106	1466
adamc@428	1467 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1468 uw_check(ctx, INTS_MAX);
adamc@311	1469 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1470
adamc@428	1471 return uw_unit_v;
adamc@106	1472 }
adamc@106	1473
adamc@428	1474 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1475 int len;
adamc@117	1476
adamc@311	1477 uw_check(ctx, FLOATS_MAX);
adamc@666	1478 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1479 ctx->page.front += len;
adamc@428	1480
adamc@428	1481 return uw_unit_v;
adamc@117	1482 }
adamc@117	1483
adamc@428	1484 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1485 uw_check(ctx, strlen(s) * 6);
adamc@117	1486
adamc@106	1487 for (; *s; s++) {
adamc@106	1488 char c = *s;
adamc@106	1489
adamc@106	1490 if (c == '"')
adamc@311	1491 uw_write_unsafe(ctx, """);
adamc@136	1492 else if (c == '&')
adamc@311	1493 uw_write_unsafe(ctx, "&");
adamc@106	1494 else if (isprint(c))
adamc@311	1495 uw_writec_unsafe(ctx, c);
adamc@106	1496 else {
adamc@311	1497 uw_write_unsafe(ctx, "&#");
adamc@311	1498 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311	1499 uw_writec_unsafe(ctx, ';');
adamc@106	1500 }
adamc@106	1501 }
adamc@428	1502
adamc@428	1503 return uw_unit_v;
adamc@106	1504 }
adamc@120	1505
adamc@1011	1506 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1507 uw_check(ctx, 6);
adamc@1011	1508
adamc@1011	1509 if (c == '"')
adamc@1011	1510 uw_write_unsafe(ctx, """);
adamc@1011	1511 else if (c == '&')
adamc@1011	1512 uw_write_unsafe(ctx, "&");
adamc@1011	1513 else if (isprint(c))
adamc@1011	1514 uw_writec_unsafe(ctx, c);
adamc@1011	1515 else {
adamc@1011	1516 uw_write_unsafe(ctx, "&#");
adamc@1011	1517 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@1011	1518 uw_writec_unsafe(ctx, ';');
adamc@1011	1519 }
adamc@1011	1520
adamc@1011	1521 return uw_unit_v;
adamc@1011	1522 }
adamc@1011	1523
adamc@120	1524
adamc@311	1525 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1526 int len;
adamc@137	1527 char *r;
adamc@137	1528
adamc@311	1529 uw_check_heap(ctx, INTS_MAX);
adamc@666	1530 r = ctx->heap.front;
adamc@276	1531 sprintf(r, "%lld%n", n, &len);
adamc@666	1532 ctx->heap.front += len+1;
adamc@137	1533 return r;
adamc@120	1534 }
adamc@120	1535
adamc@682	1536 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1537 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1538 return "";
adamc@682	1539 else {
adamc@682	1540 int len;
adamc@682	1541 char *r;
adamc@679	1542
adamc@682	1543 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1544 r = ctx->heap.front;
adamc@682	1545 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1546 ctx->heap.front += len+1;
adamc@682	1547 return r;
adamc@682	1548 }
adamc@679	1549 }
adamc@679	1550
adamc@311	1551 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1552 int len;
adamc@137	1553 char *r;
adamc@137	1554
adamc@311	1555 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1556 r = ctx->heap.front;
adamc@137	1557 sprintf(r, "%g%n", n, &len);
adamc@666	1558 ctx->heap.front += len+1;
adamc@137	1559 return r;
adamc@120	1560 }
adamc@120	1561
adamc@311	1562 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1563 char r, p;
adamc@137	1564
adamc@925	1565 if (s[0] == '\0')
adamc@925	1566 return "_";
adamc@925	1567
adamc@925	1568 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1569
adamc@925	1570 r = p = ctx->heap.front;
adamc@925	1571 if (s[0] == '_')
adamc@925	1572 *p++ = '_';
adamc@925	1573
adamc@925	1574 for (; *s; s++) {
adamc@137	1575 char c = *s;
adamc@137	1576
adamc@137	1577 if (c == ' ')
adamc@137	1578 *p++ = '+';
adamc@137	1579 else if (isalnum(c))
adamc@137	1580 *p++ = c;
adamc@137	1581 else {
adamc@137	1582 sprintf(p, "%%%02X", c);
adamc@137	1583 p += 3;
adamc@137	1584 }
adamc@137	1585 }
adamc@137	1586
adamc@137	1587 *p++ = 0;
adamc@666	1588 ctx->heap.front = p;
adamc@137	1589 return r;
adamc@120	1590 }
adamc@120	1591
adamc@311	1592 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1593 if (b == uw_Basis_False)
adamc@186	1594 return "0";
adamc@186	1595 else
adamc@186	1596 return "1";
adamc@186	1597 }
adamc@186	1598
adamc@311	1599 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1600 int len;
adamc@120	1601
adamc@666	1602 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1603 ctx->page.front += len;
adamc@120	1604 }
adamc@120	1605
adamc@428	1606 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1607 uw_check(ctx, INTS_MAX);
adamc@311	1608 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1609
adamc@428	1610 return uw_unit_v;
adamc@120	1611 }
adamc@120	1612
adamc@682	1613 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1614 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1615 int len;
adamc@682	1616
adamc@682	1617 uw_check(ctx, INTS_MAX + 1);
adamc@682	1618 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1619 ctx->page.front += len;
adamc@682	1620 }
adamc@682	1621
adamc@679	1622 return uw_unit_v;
adamc@679	1623 }
adamc@679	1624
adamc@428	1625 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1626 int len;
adamc@120	1627
adamc@311	1628 uw_check(ctx, FLOATS_MAX);
adamc@666	1629 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1630 ctx->page.front += len;
adamc@428	1631
adamc@428	1632 return uw_unit_v;
adamc@120	1633 }
adamc@120	1634
adamc@488	1635 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@488	1636 return uw_Basis_urlifyInt(ctx, t);
adamc@488	1637 }
adamc@488	1638
adamc@428	1639 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1640 if (s[0] == '\0') {
adamc@925	1641 uw_check(ctx, 1);
adamc@925	1642 uw_writec_unsafe(ctx, '_');
adamc@925	1643 return uw_unit_v;
adamc@925	1644 }
adamc@925	1645
adamc@925	1646 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1647
adamc@925	1648 if (s[0] == '_')
adamc@925	1649 uw_writec_unsafe(ctx, '_');
adamc@120	1650
adamc@120	1651 for (; *s; s++) {
adamc@120	1652 char c = *s;
adamc@120	1653
adamc@120	1654 if (c == ' ')
adamc@311	1655 uw_writec_unsafe(ctx, '+');
adamc@120	1656 else if (isalnum(c))
adamc@311	1657 uw_writec_unsafe(ctx, c);
adamc@120	1658 else {
adamc@666	1659 sprintf(ctx->page.front, "%%%02X", c);
adamc@666	1660 ctx->page.front += 3;
adamc@120	1661 }
adamc@120	1662 }
adamc@428	1663
adamc@428	1664 return uw_unit_v;
adamc@120	1665 }
adamc@120	1666
adamc@428	1667 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1668 if (b == uw_Basis_False)
adamc@311	1669 uw_writec(ctx, '0');
adamc@186	1670 else
adamc@311	1671 uw_writec(ctx, '1');
adamc@428	1672
adamc@428	1673 return uw_unit_v;
adamc@186	1674 }
adamc@186	1675
adamc@120	1676
adamc@311	1677 static char uw_unurlify_advance(char s) {
adamc@144	1678 char *new_s = strchr(s, '/');
adamc@120	1679
adamc@120	1680 if (new_s)
adamc@120	1681 *new_s++ = 0;
adamc@120	1682 else
adamc@144	1683 new_s = strchr(s, 0);
adamc@144	1684
adamc@144	1685 return new_s;
adamc@144	1686 }
adamc@144	1687
adamc@311	1688 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1689 char new_s = uw_unurlify_advance(s);
adamc@311	1690 uw_Basis_int r;
adamc@120	1691
adamc@276	1692 r = atoll(*s);
adamc@120	1693 *s = new_s;
adamc@120	1694 return r;
adamc@120	1695 }
adamc@120	1696
adamc@311	1697 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1698 char new_s = uw_unurlify_advance(s);
adamc@311	1699 uw_Basis_float r;
adamc@120	1700
adamc@120	1701 r = atof(*s);
adamc@120	1702 *s = new_s;
adamc@120	1703 return r;
adamc@120	1704 }
adamc@120	1705
adamc@488	1706 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adamc@488	1707 return uw_Basis_unurlifyInt(ctx, s);
adamc@488	1708 }
adamc@488	1709
adamc@1023	1710 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1711 char s1, s2 = s;
adamc@144	1712 int n;
adamc@136	1713
adamc@1023	1714 if (!fromClient) {
adamc@1023	1715 if (*s2 == '_')
adamc@1023	1716 ++s2;
adamc@1023	1717 else if (s2[0] == '%' && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1718 s2 += 3;
adamc@1023	1719 }
adamc@925	1720
adamc@927	1721 for (s1 = r; *s2; ++s1, ++s2) {
adamc@136	1722 char c = *s2;
adamc@136	1723
adamc@136	1724 switch (c) {
adamc@136	1725 case '+':
adamc@136	1726 *s1 = ' ';
adamc@136	1727 break;
adamc@136	1728 case '%':
adamc@169	1729 if (s2[1] == 0)
adamc@311	1730 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1731 if (s2[2] == 0)
adamc@311	1732 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1733 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@311	1734 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@136	1735 *s1 = n;
adamc@136	1736 s2 += 2;
adamc@136	1737 break;
adamc@136	1738 default:
adamc@136	1739 *s1 = c;
adamc@136	1740 }
adamc@136	1741 }
adamc@136	1742 *s1++ = 0;
adamc@144	1743 return s1;
adamc@144	1744 }
adamc@144	1745
adamc@311	1746 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	1747 char new_s = uw_unurlify_advance(s);
adamc@311	1748 uw_Basis_bool r;
adamc@186	1749
adamc@186	1750 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	1751 r = uw_Basis_False;
adamc@186	1752 else
adamc@311	1753 r = uw_Basis_True;
adamc@186	1754
adamc@186	1755 *s = new_s;
adamc@186	1756 return r;
adamc@186	1757 }
adamc@186	1758
adamc@311	1759 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	1760 char new_s = uw_unurlify_advance(s);
adamc@144	1761 char r, s1, *s2;
adamc@144	1762 int len, n;
adamc@144	1763
adamc@200	1764 len = strlen(*s);
adamc@311	1765 uw_check_heap(ctx, len + 1);
adamc@144	1766
adamc@666	1767 r = ctx->heap.front;
adamc@1023	1768 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	1769 *s = new_s;
adamc@1023	1770 return r;
adamc@1023	1771 }
adamc@1023	1772
adamc@1023	1773 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	1774 char new_s = uw_unurlify_advance(s);
adamc@1023	1775 char r, s1, *s2;
adamc@1023	1776 int len, n;
adamc@1023	1777
adamc@1023	1778 len = strlen(*s);
adamc@1023	1779 uw_check_heap(ctx, len + 1);
adamc@1023	1780
adamc@1023	1781 r = ctx->heap.front;
adamc@1023	1782 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	1783 *s = new_s;
adamc@136	1784 return r;
adamc@120	1785 }
adamc@135	1786
adamc@135	1787
adamc@311	1788 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	1789 int len;
adamc@286	1790 char *r;
adamc@286	1791
adamc@311	1792 uw_check_heap(ctx, INTS_MAX);
adamc@666	1793 r = ctx->heap.front;
adamc@286	1794 sprintf(r, "%lld%n", n, &len);
adamc@666	1795 ctx->heap.front += len+1;
adamc@286	1796 return r;
adamc@286	1797 }
adamc@286	1798
adamc@428	1799 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	1800 int len;
adamc@286	1801
adamc@311	1802 uw_check(ctx, INTS_MAX);
adamc@666	1803 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1804 ctx->page.front += len;
adamc@428	1805
adamc@428	1806 return uw_unit_v;
adamc@286	1807 }
adamc@286	1808
adamc@311	1809 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	1810 int len;
adamc@286	1811 char *r;
adamc@286	1812
adamc@311	1813 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1814 r = ctx->heap.front;
adamc@286	1815 sprintf(r, "%g%n", n, &len);
adamc@666	1816 ctx->heap.front += len+1;
adamc@286	1817 return r;
adamc@286	1818 }
adamc@286	1819
adamc@428	1820 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	1821 int len;
adamc@286	1822
adamc@311	1823 uw_check(ctx, FLOATS_MAX);
adamc@666	1824 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1825 ctx->page.front += len;
adamc@428	1826
adamc@428	1827 return uw_unit_v;
adamc@286	1828 }
adamc@286	1829
adamc@311	1830 char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1831 char r, s2;
adamc@137	1832
adamc@311	1833 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	1834
adamc@666	1835 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@137	1836 char c = *s;
adamc@137	1837
adamc@137	1838 switch (c) {
adamc@137	1839 case '<':
adamc@137	1840 strcpy(s2, "<");
adamc@137	1841 s2 += 4;
adamc@137	1842 break;
adamc@137	1843 case '&':
adamc@137	1844 strcpy(s2, "&");
adamc@137	1845 s2 += 5;
adamc@137	1846 break;
adamc@137	1847 default:
adamc@137	1848 if (isprint(c))
adamc@137	1849 *s2++ = c;
adamc@137	1850 else {
adamc@137	1851 int len2;
adamc@137	1852 sprintf(s2, "&#%d;%n", c, &len2);
adamc@137	1853 s2 += len2;
adamc@137	1854 }
adamc@137	1855 }
adamc@137	1856 }
adamc@137	1857
adamc@137	1858 *s2++ = 0;
adamc@666	1859 ctx->heap.front = s2;
adamc@137	1860 return r;
adamc@135	1861 }
adamc@135	1862
adamc@428	1863 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	1864 uw_check(ctx, strlen(s) * 6);
adamc@135	1865
adamc@135	1866 for (; *s; s++) {
adamc@135	1867 char c = *s;
adamc@135	1868
adamc@135	1869 switch (c) {
adamc@135	1870 case '<':
adamc@311	1871 uw_write_unsafe(ctx, "<");
adamc@135	1872 break;
adamc@135	1873 case '&':
adamc@311	1874 uw_write_unsafe(ctx, "&");
adamc@135	1875 break;
adamc@135	1876 default:
adamc@135	1877 if (isprint(c))
adamc@311	1878 uw_writec_unsafe(ctx, c);
adamc@135	1879 else {
adamc@311	1880 uw_write_unsafe(ctx, "&#");
adamc@311	1881 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311	1882 uw_writec_unsafe(ctx, ';');
adamc@135	1883 }
adamc@135	1884 }
adamc@135	1885 }
adamc@428	1886
adamc@428	1887 return uw_unit_v;
adamc@135	1888 }
adamc@180	1889
adamc@311	1890 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1891 if (b == uw_Basis_False)
adamc@286	1892 return "False";
adamc@286	1893 else
adamc@286	1894 return "True";
adamc@286	1895 }
adamc@286	1896
adamc@428	1897 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1898 if (b == uw_Basis_False) {
adamc@311	1899 uw_check(ctx, 6);
adamc@666	1900 strcpy(ctx->page.front, "False");
adamc@666	1901 ctx->page.front += 5;
adamc@286	1902 } else {
adamc@311	1903 uw_check(ctx, 5);
adamc@666	1904 strcpy(ctx->page.front, "True");
adamc@666	1905 ctx->page.front += 4;
adamc@286	1906 }
adamc@428	1907
adamc@428	1908 return uw_unit_v;
adamc@286	1909 }
adamc@286	1910
adamc@436	1911 #define TIME_FMT "%x %X"
adamc@438	1912 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436	1913
adamc@436	1914 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436	1915 size_t len;
adamc@436	1916 char *r;
adamc@436	1917 struct tm stm;
adamc@436	1918
adamc@436	1919 if (localtime_r(&t, &stm)) {
adamc@436	1920 uw_check_heap(ctx, TIMES_MAX);
adamc@666	1921 r = ctx->heap.front;
adamc@436	1922 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	1923 ctx->heap.front += len+1;
adamc@436	1924 return r;
adamc@436	1925 } else
adamc@436	1926 return "<i>Invalid time</i>";
adamc@436	1927 }
adamc@436	1928
adamc@436	1929 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436	1930 size_t len;
adamc@436	1931 char *r;
adamc@436	1932 struct tm stm;
adamc@436	1933
adamc@436	1934 if (localtime_r(&t, &stm)) {
adamc@436	1935 uw_check(ctx, TIMES_MAX);
adamc@666	1936 r = ctx->page.front;
adamc@436	1937 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	1938 ctx->page.front += len;
adamc@436	1939 } else {
adamc@436	1940 uw_check(ctx, 20);
adamc@666	1941 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666	1942 ctx->page.front += 19;
adamc@436	1943 }
adamc@436	1944
adamc@436	1945 return uw_unit_v;
adamc@436	1946 }
adamc@436	1947
adamc@821	1948 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	1949 if (n >= 0 && n < strlen(s))
adamc@821	1950 return s[n];
adamc@821	1951 else
adamc@821	1952 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adamc@821	1953 }
adamc@821	1954
adamc@821	1955 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	1956 if (n >= 0 && n < strlen(s))
adamc@821	1957 return &s[n];
adamc@821	1958 else
adamc@821	1959 uw_error(ctx, FATAL, "Out-of-bounds strsuffix");
adamc@821	1960 }
adamc@821	1961
adamc@828	1962 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	1963 return strlen(s);
adamc@828	1964 }
adamc@828	1965
adamc@829	1966 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	1967 return strchr(s, ch);
adamc@829	1968 }
adamc@829	1969
adamc@831	1970 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	1971 return strcspn(s, chs);
adamc@831	1972 }
adamc@831	1973
adamc@829	1974 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	1975 uw_Basis_string r = strchr(s, ch);
adamc@829	1976 if (r == NULL)
adamc@829	1977 return NULL;
adamc@829	1978 else {
adamc@829	1979 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	1980 *nr = r - s;
adamc@829	1981 return nr;
adamc@829	1982 }
adamc@829	1983 }
adamc@829	1984
adamc@311	1985 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	1986 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	1987 char *s;
adamc@180	1988
adamc@311	1989 uw_check_heap(ctx, len);
adamc@180	1990
adamc@666	1991 s = ctx->heap.front;
adamc@180	1992
adamc@180	1993 strcpy(s, s1);
adamc@180	1994 strcat(s, s2);
adamc@666	1995 ctx->heap.front += len;
adamc@180	1996
adamc@180	1997 return s;
adamc@180	1998 }
adamc@278	1999
adamc@829	2000 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2001 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2002
adamc@829	2003 if (start < 0)
adamc@829	2004 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2005 if (len < 0)
adamc@829	2006 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2007 if (start + len > full_len)
adamc@829	2008 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2009
adamc@829	2010 if (start + len == full_len)
adamc@829	2011 return &s[start];
adamc@829	2012 else {
adamc@829	2013 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2014 memcpy(r, s+start, len);
adamc@829	2015 r[len] = 0;
adamc@829	2016 return r;
adamc@829	2017 }
adamc@829	2018
adamc@829	2019 }
adamc@829	2020
adamc@1023	2021 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2022 char *r;
adamc@1023	2023
adamc@1023	2024 uw_check_heap(ctx, 2);
adamc@1023	2025 r = ctx->heap.front;
adamc@1023	2026 r[0] = ch;
adamc@1023	2027 r[1] = 0;
adamc@1023	2028
adamc@1023	2029 ctx->heap.front += 2;
adamc@1023	2030
adamc@1023	2031 return r;
adamc@1023	2032 }
adamc@1023	2033
adamc@737	2034 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2035 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2036 char *s;
adamc@278	2037
adamc@311	2038 uw_check_heap(ctx, len);
adamc@278	2039
adamc@666	2040 s = ctx->heap.front;
adamc@278	2041
adamc@278	2042 strcpy(s, s1);
adamc@666	2043 ctx->heap.front += len;
adamc@278	2044
adamc@278	2045 return s;
adamc@278	2046 }
adamc@280	2047
adamc@737	2048 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2049 if (s1)
adamc@737	2050 return uw_strdup(ctx, s1);
adamc@493	2051 else
adamc@493	2052 return NULL;
adamc@493	2053 }
adamc@493	2054
adamc@742	2055 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2056 char *r = uw_malloc(ctx, len);
adamc@742	2057 memcpy(r, p, len);
adamc@742	2058 return r;
adamc@742	2059 }
adamc@280	2060
adamc@879	2061 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2062
adamc@311	2063 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2064 int len;
adamc@281	2065 char *r;
adamc@281	2066
adamc@311	2067 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2068 r = ctx->heap.front;
adamc@879	2069 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2070 ctx->heap.front += len+1;
adamc@281	2071 return r;
adamc@281	2072 }
adamc@281	2073
adamc@467	2074 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2075 if (n == NULL)
adamc@467	2076 return "NULL";
adamc@467	2077 else
adamc@467	2078 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2079 }
adamc@467	2080
adamc@879	2081 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879	2082
adamc@311	2083 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2084 int len;
adamc@281	2085 char *r;
adamc@281	2086
adamc@311	2087 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2088 r = ctx->heap.front;
adamc@879	2089 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2090 ctx->heap.front += len+1;
adamc@281	2091 return r;
adamc@281	2092 }
adamc@281	2093
adamc@467	2094 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2095 if (n == NULL)
adamc@467	2096 return "NULL";
adamc@467	2097 else
adamc@467	2098 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2099 }
adamc@467	2100
adamc@879	2101 int uw_Estrings = 1;
adamc@879	2102 char *uw_sqlsuffixString = "::text";
adamc@1011	2103 char *uw_sqlsuffixChar = "::char";
adamc@281	2104
adamc@311	2105 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2106 char r, s2;
adamc@280	2107
adamc@879	2108 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2109
adamc@666	2110 r = s2 = ctx->heap.front;
adamc@879	2111 if (uw_Estrings)
adamc@879	2112 *s2++ = 'E';
adamc@280	2113 *s2++ = '\'';
adamc@280	2114
adamc@280	2115 for (; *s; s++) {
adamc@280	2116 char c = *s;
adamc@280	2117
adamc@280	2118 switch (c) {
adamc@280	2119 case '\'':
adamc@885	2120 if (uw_Estrings)
adamc@885	2121 strcpy(s2, "\\'");
adamc@885	2122 else
adamc@885	2123 strcpy(s2, "''");
adamc@280	2124 s2 += 2;
adamc@280	2125 break;
adamc@280	2126 case '\\':
adamc@885	2127 if (uw_Estrings) {
adamc@885	2128 strcpy(s2, "\\\\");
adamc@885	2129 s2 += 2;
adamc@885	2130 } else
adamc@885	2131 *s2++ = '\\';
adamc@280	2132 break;
adamc@280	2133 default:
adamc@280	2134 if (isprint(c))
adamc@280	2135 *s2++ = c;
adamc@879	2136 else if (uw_Estrings) {
adamc@737	2137 sprintf(s2, "\\%03o", c);
adamc@280	2138 s2 += 4;
adamc@280	2139 }
adamc@879	2140 else
adamc@879	2141 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280	2142 }
adamc@280	2143 }
adamc@280	2144
adamc@879	2145 *s2++ = '\'';
adamc@879	2146 strcpy(s2, uw_sqlsuffixString);
adamc@879	2147 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2148 return r;
adamc@280	2149 }
adamc@281	2150
adamc@1011	2151 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2152 char r, s2;
adamc@1011	2153
adamc@1011	2154 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2155
adamc@1011	2156 r = s2 = ctx->heap.front;
adamc@1011	2157 if (uw_Estrings)
adamc@1011	2158 *s2++ = 'E';
adamc@1011	2159 *s2++ = '\'';
adamc@1011	2160
adamc@1011	2161 switch (c) {
adamc@1011	2162 case '\'':
adamc@1011	2163 if (uw_Estrings)
adamc@1011	2164 strcpy(s2, "\\'");
adamc@1011	2165 else
adamc@1011	2166 strcpy(s2, "''");
adamc@1011	2167 s2 += 2;
adamc@1011	2168 break;
adamc@1011	2169 case '\\':
adamc@1011	2170 if (uw_Estrings) {
adamc@1011	2171 strcpy(s2, "\\\\");
adamc@1011	2172 s2 += 2;
adamc@1011	2173 } else
adamc@1011	2174 *s2++ = '\\';
adamc@1011	2175 break;
adamc@1011	2176 default:
adamc@1011	2177 if (isprint(c))
adamc@1011	2178 *s2++ = c;
adamc@1011	2179 else if (uw_Estrings) {
adamc@1011	2180 sprintf(s2, "\\%03o", c);
adamc@1011	2181 s2 += 4;
adamc@1011	2182 }
adamc@1011	2183 else
adamc@1011	2184 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2185 }
adamc@1011	2186
adamc@1011	2187 *s2++ = '\'';
adamc@1011	2188 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2189 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2190 return r;
adamc@1011	2191 }
adamc@1011	2192
adamc@879	2193 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2194
adamc@737	2195 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2196 char r, s2;
adamc@737	2197 size_t i;
adamc@737	2198
adamc@879	2199 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737	2200
adamc@737	2201 r = s2 = ctx->heap.front;
adamc@879	2202 if (uw_Estrings)
adamc@879	2203 *s2++ = 'E';
adamc@737	2204 *s2++ = '\'';
adamc@737	2205
adamc@737	2206 for (i = 0; i < b.size; ++i) {
adamc@737	2207 char c = b.data[i];
adamc@737	2208
adamc@737	2209 switch (c) {
adamc@737	2210 case '\'':
adamc@885	2211 if (uw_Estrings)
adamc@885	2212 strcpy(s2, "\\'");
adamc@885	2213 else
adamc@885	2214 strcpy(s2, "''");
adamc@737	2215 s2 += 2;
adamc@737	2216 break;
adamc@737	2217 case '\\':
adamc@885	2218 if (uw_Estrings) {
adamc@885	2219 strcpy(s2, "\\\\\\\\");
adamc@885	2220 s2 += 4;
adamc@885	2221 } else
adamc@885	2222 *s2++ = '\\';
adamc@737	2223 break;
adamc@737	2224 default:
adamc@737	2225 if (isprint(c))
adamc@737	2226 *s2++ = c;
adamc@879	2227 else if (uw_Estrings) {
adamc@737	2228 sprintf(s2, "\\\\%03o", c);
adamc@737	2229 s2 += 5;
adamc@737	2230 }
adamc@879	2231 else
adamc@879	2232 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737	2233 }
adamc@737	2234 }
adamc@737	2235
adamc@879	2236 *s2++ = '\'';
adamc@879	2237 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2238 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2239 return r;
adamc@737	2240 }
adamc@737	2241
adamc@682	2242 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2243 int len;
adamc@682	2244 char *r;
adamc@682	2245 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2246
adamc@682	2247 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2248 r = ctx->heap.front;
adamc@879	2249 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2250 ctx->heap.front += len+1;
adamc@682	2251 return r;
adamc@682	2252 }
adamc@682	2253
adamc@682	2254 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2255 int len;
adamc@682	2256 char *r;
adamc@682	2257 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2258
adamc@682	2259 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2260 r = ctx->heap.front;
adamc@682	2261 sprintf(r, "%lld%n", combo, &len);
adamc@682	2262 ctx->heap.front += len+1;
adamc@682	2263 return r;
adamc@682	2264 }
adamc@682	2265
adamc@879	2266 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2267
adamc@682	2268 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2269 int len;
adamc@682	2270 char *r;
adamc@682	2271
adamc@682	2272 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2273 r = ctx->heap.front;
adamc@879	2274 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2275 ctx->heap.front += len+1;
adamc@682	2276 return r;
adamc@682	2277 }
adamc@682	2278
adamc@682	2279 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2280 int len;
adamc@682	2281 char *r;
adamc@682	2282
adamc@682	2283 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2284 r = ctx->heap.front;
adamc@682	2285 sprintf(r, "%u%n", cli, &len);
adamc@682	2286 ctx->heap.front += len+1;
adamc@682	2287 return r;
adamc@682	2288 }
adamc@682	2289
adamc@467	2290 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2291 if (s == NULL)
adamc@467	2292 return "NULL";
adamc@467	2293 else
adamc@467	2294 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2295 }
adamc@467	2296
adamc@311	2297 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2298 if (b == uw_Basis_False)
adamc@281	2299 return "FALSE";
adamc@281	2300 else
adamc@281	2301 return "TRUE";
adamc@281	2302 }
adamc@282	2303
adamc@467	2304 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2305 if (b == NULL)
adamc@467	2306 return "NULL";
adamc@467	2307 else
adamc@467	2308 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2309 }
adamc@467	2310
adamc@439	2311 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2312 size_t len;
adamc@682	2313 char r, s;
adamc@682	2314 struct tm stm;
adamc@682	2315
adamc@682	2316 if (localtime_r(&t, &stm)) {
adamc@682	2317 s = uw_malloc(ctx, TIMES_MAX);
adamc@995	2318 --stm.tm_hour;
adamc@682	2319 len = strftime(s, TIMES_MAX, TIME_FMT, &stm);
adamc@682	2320 r = uw_malloc(ctx, len + 14);
adamc@682	2321 sprintf(r, "'%s'::timestamp", s);
adamc@682	2322 return r;
adamc@682	2323 } else
adamc@682	2324 return "<Invalid time>";
adamc@682	2325 }
adamc@682	2326
adamc@682	2327 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2328 size_t len;
adamc@439	2329 char *r;
adamc@439	2330 struct tm stm;
adamc@439	2331
adamc@439	2332 if (localtime_r(&t, &stm)) {
adamc@439	2333 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2334 r = ctx->heap.front;
adamc@439	2335 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2336 ctx->heap.front += len+1;
adamc@439	2337 return r;
adamc@439	2338 } else
adamc@439	2339 return "<Invalid time>";
adamc@439	2340 }
adamc@439	2341
adamc@467	2342 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2343 if (t == NULL)
adamc@467	2344 return "NULL";
adamc@467	2345 else
adamc@467	2346 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2347 }
adamc@467	2348
adamc@311	2349 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2350 static uw_Basis_int true = 1;
adamc@311	2351 static uw_Basis_int false = 0;
adamc@282	2352
adamc@311	2353 if (b == uw_Basis_False)
adamc@282	2354 return (char *)&false;
adamc@282	2355 else
adamc@282	2356 return (char *)&true;
adamc@282	2357 }
adamc@284	2358
adamc@311	2359 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2360 int len;
adamc@284	2361 char *r;
adamc@284	2362
adamc@311	2363 uw_check_heap(ctx, INTS_MAX);
adamc@666	2364 r = ctx->heap.front;
adamc@284	2365 sprintf(r, "%lld%n", n, &len);
adamc@666	2366 ctx->heap.front += len+1;
adamc@284	2367 return r;
adamc@284	2368 }
adamc@285	2369
adamc@311	2370 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2371 int len;
adamc@285	2372 char *r;
adamc@285	2373
adamc@311	2374 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2375 r = ctx->heap.front;
adamc@285	2376 sprintf(r, "%g%n", n, &len);
adamc@666	2377 ctx->heap.front += len+1;
adamc@285	2378 return r;
adamc@285	2379 }
adamc@285	2380
adamc@821	2381 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2382 char *r = uw_malloc(ctx, 2);
adamc@821	2383 r[0] = ch;
adamc@821	2384 r[1] = 0;
adamc@821	2385 return r;
adamc@821	2386 }
adamc@821	2387
adamc@311	2388 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2389 if (b == uw_Basis_False)
adamc@285	2390 return "False";
adamc@285	2391 else
adamc@285	2392 return "True";
adamc@285	2393 }
adamc@288	2394
adamc@436	2395 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436	2396 size_t len;
adamc@436	2397 char *r;
adamc@436	2398 struct tm stm;
adamc@436	2399
adamc@436	2400 if (localtime_r(&t, &stm)) {
adamc@436	2401 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2402 r = ctx->heap.front;
adamc@436	2403 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2404 ctx->heap.front += len+1;
adamc@436	2405 return r;
adamc@436	2406 } else
adamc@436	2407 return "<Invalid time>";
adamc@436	2408 }
adamc@288	2409
adamc@311	2410 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2411 char *endptr;
adamc@311	2412 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2413
adamc@288	2414 if (s != '\0' && endptr == '\0') {
adamc@311	2415 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2416 *r = n;
adamc@288	2417 return r;
adamc@288	2418 } else
adamc@288	2419 return NULL;
adamc@288	2420 }
adamc@289	2421
adamc@311	2422 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2423 char *endptr;
adamc@311	2424 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2425
adamc@289	2426 if (s != '\0' && endptr == '\0') {
adamc@311	2427 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2428 *r = n;
adamc@289	2429 return r;
adamc@289	2430 } else
adamc@289	2431 return NULL;
adamc@289	2432 }
adamc@289	2433
adamc@821	2434 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2435 if (s[0] == 0) {
adamc@821	2436 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2437 r[0] = 0;
adamc@821	2438 return r;
adamc@821	2439 } else if (s[1] != 0)
adamc@821	2440 return NULL;
adamc@821	2441 else {
adamc@821	2442 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2443 r[0] = s[0];
adamc@821	2444 return r;
adamc@821	2445 }
adamc@821	2446 }
adamc@821	2447
adamc@311	2448 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2449 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2450 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2451
adamc@289	2452 if (!strcasecmp (s, "True"))
adamc@289	2453 return &true;
adamc@289	2454 else if (!strcasecmp (s, "False"))
adamc@289	2455 return &false;
adamc@289	2456 else
adamc@289	2457 return NULL;
adamc@289	2458 }
adamc@292	2459
adamc@436	2460 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2461 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2462 struct tm stm;
adamc@436	2463
adamc@439	2464 if (dot) {
adamc@439	2465 *dot = 0;
adamc@439	2466 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2467 *dot = '.';
adamc@439	2468 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2469 *r = mktime(&stm);
adamc@439	2470 return r;
adamc@439	2471 }
adamc@439	2472 else {
adamc@439	2473 *dot = '.';
adamc@439	2474 return NULL;
adamc@439	2475 }
adamc@436	2476 }
adamc@439	2477 else {
adamc@439	2478 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2479 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2480 *r = mktime(&stm);
adamc@439	2481 return r;
adamc@439	2482 }
adamc@439	2483 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2484 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2485 *r = mktime(&stm);
adamc@439	2486 return r;
adamc@439	2487 }
adamc@439	2488 else
adamc@439	2489 return NULL;
adamc@439	2490 }
adamc@436	2491 }
adamc@436	2492
adamc@311	2493 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2494 char *endptr;
adamc@311	2495 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2496
adamc@292	2497 if (s != '\0' && endptr == '\0')
adamc@292	2498 return n;
adamc@292	2499 else
adamc@311	2500 uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292	2501 }
adamc@293	2502
adamc@682	2503 #include <errno.h>
adamc@682	2504
adamc@678	2505 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2506 unsigned long long n;
adamc@682	2507
adamc@682	2508 if (sscanf(s, "%llu", &n) < 1)
adamc@682	2509 uw_error(ctx, FATAL, "Can't parse channel: %s", s);
adamc@682	2510 else {
adamc@682	2511 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2512 return ch;
adamc@682	2513 }
adamc@682	2514 }
adamc@682	2515
adamc@682	2516 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2517 char *endptr;
adamc@682	2518 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2519
adamc@678	2520 if (s != '\0' && endptr == '\0')
adamc@678	2521 return n;
adamc@678	2522 else
adamc@682	2523 uw_error(ctx, FATAL, "Can't parse client: %s", s);
adamc@678	2524 }
adamc@678	2525
adamc@311	2526 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2527 char *endptr;
adamc@311	2528 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2529
adamc@293	2530 if (s != '\0' && endptr == '\0')
adamc@293	2531 return n;
adamc@293	2532 else
adamc@311	2533 uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293	2534 }
adamc@293	2535
adamc@821	2536 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2537 if (s[0] == 0)
adamc@821	2538 return 0;
adamc@821	2539 else if (s[1] != 0)
adamc@821	2540 uw_error(ctx, FATAL, "Can't parse char: %s", s);
adamc@821	2541 else
adamc@821	2542 return s[0];
adamc@821	2543 }
adamc@821	2544
adamc@311	2545 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2546 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2547 return uw_Basis_True;
adamc@296	2548 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2549 return uw_Basis_False;
adamc@293	2550 else
adamc@311	2551 uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293	2552 }
adamc@436	2553
adamc@436	2554 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2555 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2556 struct tm stm = {};
adamc@436	2557
adamc@438	2558 if (dot) {
adamc@438	2559 *dot = 0;
adamc@438	2560 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2561 *dot = '.';
adamc@438	2562 return mktime(&stm);
adamc@438	2563 }
adamc@438	2564 else {
adamc@438	2565 *dot = '.';
adamc@438	2566 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2567 }
adamc@438	2568 }
adamc@438	2569 else {
adamc@439	2570 if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439	2571 return mktime(&stm);
adamc@439	2572 else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438	2573 return mktime(&stm);
adamc@438	2574 else
adamc@438	2575 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2576 }
adamc@436	2577 }
adamc@457	2578
adamc@939	2579 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adamc@939	2580 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@939	2581 struct tm stm = {};
adamc@939	2582
adamc@939	2583 if (dot) {
adamc@939	2584 *dot = 0;
adamc@939	2585 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@939	2586 *dot = '.';
adamc@939	2587 return mktime(&stm);
adamc@939	2588 }
adamc@939	2589 else {
adamc@939	2590 *dot = '.';
adamc@939	2591 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2592 }
adamc@939	2593 }
adamc@939	2594 else {
adamc@939	2595 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@939	2596 return mktime(&stm);
adamc@939	2597 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@939	2598 return mktime(&stm);
adamc@939	2599 } else
adamc@939	2600 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2601 }
adamc@939	2602 }
adamc@939	2603
adamc@742	2604 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	2605 char *r = ctx->heap.front;
adamc@742	2606 uw_Basis_blob b = {len, r};
adamc@742	2607
adamc@742	2608 uw_check_heap(ctx, len);
adamc@742	2609
adamc@742	2610 while (*s) {
adamc@742	2611 if (s[0] == '\\') {
adamc@742	2612 if (s[1] == '\\') {
adamc@742	2613 *r++ = '\\';
adamc@742	2614 s += 2;
adamc@742	2615 } else if (isdigit(s[1]) && isdigit(s[2]) && isdigit(s[3])) {
adamc@742	2616 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	2617 s += 4;
adamc@742	2618 }
adamc@742	2619 else {
adamc@742	2620 *r++ = '\\';
adamc@742	2621 ++s;
adamc@742	2622 }
adamc@742	2623 } else {
adamc@742	2624 *r++ = s[0];
adamc@742	2625 ++s;
adamc@742	2626 }
adamc@742	2627 }
adamc@742	2628
adamc@742	2629 b.size = r - ctx->heap.front;
adamc@742	2630 ctx->heap.front = r;
adamc@742	2631 return b;
adamc@742	2632 }
adamc@742	2633
adamc@463	2634 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	2635 int len = strlen(c);
adamc@854	2636 char *p = ctx->outHeaders.start;
adamc@474	2637
adamc@474	2638 while (p = strstr(p, "\nSet-Cookie: ")) {
adamc@474	2639 char *p2;
adamc@474	2640 p += 13;
adamc@474	2641 p2 = strchr(p, '=');
adamc@474	2642
adamc@474	2643 if (p2) {
adamc@474	2644 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	2645
adamc@474	2646 if (!strncasecmp(p, c, p2 - p)) {
adamc@474	2647 char *ret = uw_malloc(ctx, sz + 1);
adamc@474	2648 memcpy(ret, p2+1, sz);
adamc@474	2649 ret[sz] = 0;
adamc@474	2650 return ret;
adamc@474	2651 }
adamc@474	2652 }
adamc@474	2653 }
adamc@463	2654
adamc@854	2655 if (p = uw_Basis_requestHeader(ctx, "Cookie")) {
adamc@854	2656 while (1) {
adamc@854	2657 if (!strncmp(p, c, len) && p[len] == '=')
adamc@854	2658 return p + 1 + len;
adamc@854	2659 else if (p = strchr(p, ';'))
adamc@854	2660 p += 2;
adamc@463	2661 else
adamc@463	2662 return NULL;
adamc@463	2663 }
adamc@463	2664 }
adamc@792	2665
adamc@792	2666 return NULL;
adamc@457	2667 }
adamc@462	2668
adamc@466	2669 uw_unit uw_Basis_set_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c, uw_Basis_string v) {
adamc@462	2670 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	2671 uw_write_header(ctx, c);
adamc@462	2672 uw_write_header(ctx, "=");
adamc@462	2673 uw_write_header(ctx, v);
adamc@466	2674 uw_write_header(ctx, "; path=");
adamc@466	2675 uw_write_header(ctx, prefix);
adamc@462	2676 uw_write_header(ctx, "\r\n");
adamc@462	2677
adamc@462	2678 return uw_unit_v;
adamc@462	2679 }
adamc@667	2680
adamc@682	2681 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	2682 unsigned i;
adamc@682	2683 delta *d;
adamc@671	2684
adamc@682	2685 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	2686 if (ctx->deltas[i].client == client)
adamc@682	2687 return &ctx->deltas[i];
adamc@671	2688
adamc@682	2689 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@682	2690 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adamc@682	2691 buf_init(&ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	2692 }
adamc@671	2693
adamc@682	2694 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	2695 d->client = client;
adamc@682	2696 buf_reset(&d->msgs);
adamc@682	2697 return d;
adamc@671	2698 }
adamc@671	2699
adamc@668	2700 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	2701 if (ctx->client == NULL)
adamc@682	2702 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	2703
adamc@682	2704 return new_channel(ctx->client);
adamc@668	2705 }
adamc@668	2706
adamc@668	2707 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	2708 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	2709 size_t len;
adamc@682	2710 int preLen;
adamc@682	2711 char pre[INTS_MAX + 2];
adamc@668	2712
adamc@682	2713 len = strlen(msg);
adamc@682	2714
adamc@682	2715 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	2716
adamc@682	2717 buf_append(&d->msgs, pre, preLen);
adamc@682	2718 buf_append(&d->msgs, msg, len);
adamc@682	2719 buf_append(&d->msgs, "\n", 1);
adamc@671	2720
adamc@671	2721 return uw_unit_v;
adamc@668	2722 }
adamc@671	2723
adamc@671	2724 int uw_db_commit(uw_context);
adamc@671	2725 int uw_db_rollback(uw_context);
adamc@671	2726
adamc@671	2727 void uw_commit(uw_context ctx) {
adamc@682	2728 unsigned i;
adamc@671	2729
adamc@771	2730 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2731 if (ctx->transactionals[i].rollback != NULL)
adamc@771	2732 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771	2733
adamc@771	2734 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2735 if (ctx->transactionals[i].rollback == NULL)
adamc@771	2736 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771	2737
adamc@771	2738 if (uw_db_commit(ctx))
adamc@671	2739 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@682	2740
adamc@682	2741 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	2742 delta *d = &ctx->deltas[i];
adamc@682	2743 client *c = find_client(d->client);
adamc@682	2744
adamc@682	2745 assert (c != NULL && c->mode == USED);
adamc@682	2746
adamc@685	2747 client_send(c, &d->msgs);
adamc@682	2748 }
adamc@682	2749
adamc@682	2750 if (ctx->client)
adamc@685	2751 release_client(ctx->client);
adamc@771	2752
adamc@771	2753 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2754 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@916	2755
adamc@916	2756 // Splice script data into appropriate part of page
adamc@995	2757 if (ctx->returning_blob \|\| ctx->script_header[0] == 0) {
adamc@995	2758 char *start = strstr(ctx->page.start, "<sc>");
adamc@995	2759 if (start) {
adamc@995	2760 memmove(start, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 4);
adamc@995	2761 ctx->page.front -= 4;
adamc@995	2762 }
adamc@995	2763 } else if (buf_used(&ctx->script) == 0) {
adamc@916	2764 size_t len = strlen(ctx->script_header);
adamc@916	2765 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2766 if (start) {
adamc@916	2767 buf_check(&ctx->page, buf_used(&ctx->page) - 4 + len);
adamc@917	2768 start = strstr(ctx->page.start, "<sc>");
adamc@916	2769 memmove(start + len, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2770 ctx->page.front += len - 4;
adamc@916	2771 memcpy(start, ctx->script_header, len);
adamc@916	2772 }
adamc@916	2773 } else {
adamc@916	2774 size_t lenH = strlen(ctx->script_header), len = buf_used(&ctx->script);
adamc@916	2775 size_t lenP = lenH + 40 + len;
adamc@916	2776 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2777 if (start) {
adamc@916	2778 buf_check(&ctx->page, buf_used(&ctx->page) - 4 + lenP);
adamc@917	2779 start = strstr(ctx->page.start, "<sc>");
adamc@916	2780 memmove(start + lenP, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2781 ctx->page.front += lenP - 4;
adamc@916	2782 memcpy(start, ctx->script_header, lenH);
adamc@916	2783 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916	2784 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916	2785 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916	2786 }
adamc@916	2787 }
adamc@671	2788 }
adamc@671	2789
adamc@671	2790 int uw_rollback(uw_context ctx) {
adamc@771	2791 size_t i;
adamc@885	2792 cleanup *cl;
adamc@771	2793
adamc@682	2794 if (ctx->client)
adamc@685	2795 release_client(ctx->client);
adamc@671	2796
adamc@885	2797 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@885	2798 cl->func(cl->arg);
adamc@885	2799
adamc@885	2800 ctx->cleanup_front = ctx->cleanup;
adamc@885	2801
adamc@771	2802 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2803 if (ctx->transactionals[i].rollback != NULL)
adamc@771	2804 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@771	2805
adamc@771	2806 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2807 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@771	2808
adamc@671	2809 return uw_db_rollback(ctx);
adamc@671	2810 }
adamc@683	2811
adamc@771	2812 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adamc@771	2813 uw_callback free) {
adamc@771	2814 if (commit == NULL)
adamc@771	2815 uw_error(ctx, FATAL, "uw_register_transactional: NULL commit callback");
adamc@771	2816
adamc@771	2817 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@771	2818 ctx->transactionals = realloc(ctx->transactionals, ctx->used_transactionals+1);
adamc@771	2819 ++ctx->n_transactionals;
adamc@771	2820 }
adamc@771	2821
adamc@771	2822 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	2823 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	2824 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	2825 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	2826 }
adamc@771	2827
adamc@683	2828
adamc@683	2829 // "Garbage collection"
adamc@683	2830
adamc@683	2831 void uw_expunger(uw_context ctx, uw_Basis_client cli);
adamc@683	2832
adamc@683	2833 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli) {
adamc@683	2834 int r = setjmp(ctx->jmp_buf);
adamc@683	2835
adamc@684	2836 if (r == 0) {
adamc@684	2837 if (uw_db_begin(ctx))
adamc@684	2838 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@683	2839 uw_expunger(ctx, cli);
adamc@684	2840 if (uw_db_commit(ctx))
adamc@684	2841 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@684	2842 }
adamc@683	2843
adamc@683	2844 return r;
adamc@683	2845 }
adamc@683	2846
adamc@683	2847 void uw_prune_clients(uw_context ctx) {
adamc@683	2848 client c, next, *prev = NULL;
adamc@683	2849 time_t cutoff;
adamc@683	2850
adamc@683	2851 cutoff = time(NULL) - uw_timeout;
adamc@683	2852
adamc@683	2853 pthread_mutex_lock(&clients_mutex);
adamc@683	2854
adamc@683	2855 for (c = clients_used; c; c = next) {
adamc@683	2856 next = c->next;
adamc@683	2857 pthread_mutex_lock(&c->lock);
adamc@685	2858 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	2859 failure_kind fk = UNLIMITED_RETRY;
adamc@683	2860 if (prev)
adamc@683	2861 prev->next = next;
adamc@683	2862 else
adamc@683	2863 clients_used = next;
adamc@684	2864 uw_reset(ctx);
adamc@683	2865 while (fk == UNLIMITED_RETRY) {
adamc@683	2866 fk = uw_expunge(ctx, c->id);
adamc@684	2867 if (fk == UNLIMITED_RETRY) {
adamc@684	2868 uw_db_rollback(ctx);
adamc@684	2869 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	2870 }
adamc@683	2871 }
adamc@684	2872 if (fk == SUCCESS)
adamc@684	2873 free_client(c);
adamc@684	2874 else {
adamc@684	2875 uw_db_rollback(ctx);
adamc@856	2876 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@684	2877 }
adamc@683	2878 }
adamc@683	2879 else
adamc@683	2880 prev = c;
adamc@683	2881 pthread_mutex_unlock(&c->lock);
adamc@683	2882 }
adamc@683	2883
adamc@683	2884 pthread_mutex_unlock(&clients_mutex);
adamc@683	2885 }
adamc@687	2886
adamc@687	2887 void uw_initializer(uw_context ctx);
adamc@687	2888
adamc@687	2889 failure_kind uw_initialize(uw_context ctx) {
adamc@687	2890 int r = setjmp(ctx->jmp_buf);
adamc@687	2891
adamc@687	2892 if (r == 0) {
adamc@687	2893 if (uw_db_begin(ctx))
adamc@687	2894 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@687	2895 uw_initializer(ctx);
adamc@687	2896 if (uw_db_commit(ctx))
adamc@687	2897 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	2898 }
adamc@687	2899
adamc@687	2900 return r;
adamc@687	2901 }
adamc@717	2902
adamc@770	2903 extern int uw_check_url(const char *);
adamc@770	2904 extern int uw_check_mime(const char *);
adamc@770	2905
adamc@717	2906 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@770	2907 if (uw_check_url(s))
adamc@770	2908 return s;
adamc@770	2909 else
adamc@770	2910 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	2911 }
adamc@734	2912
adamc@770	2913 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@770	2914 if (uw_check_url(s))
adamc@770	2915 return s;
adamc@770	2916 else
adamc@770	2917 return NULL;
adamc@770	2918 }
adamc@770	2919
adamc@770	2920 int mime_format(const char *s) {
adamc@770	2921 for (; *s; ++s)
adamc@770	2922 if (!isalnum(s) && s != '/' && s != '-' && s != '.')
adamc@770	2923 return 0;
adamc@770	2924
adamc@770	2925 return 1;
adamc@770	2926 }
adamc@770	2927
adamc@741	2928 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	2929 if (!mime_format(s))
adamc@770	2930 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	2931
adamc@770	2932 if (uw_check_mime(s))
adamc@770	2933 return s;
adamc@770	2934 else
adamc@770	2935 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	2936 }
adamc@770	2937
adamc@770	2938 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	2939 if (!mime_format(s))
adamc@770	2940 return NULL;
adamc@770	2941
adamc@770	2942 if (uw_check_mime(s))
adamc@770	2943 return s;
adamc@770	2944 else
adamc@770	2945 return NULL;
adamc@741	2946 }
adamc@741	2947
adamc@734	2948 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	2949 return s ? s : "";
adamc@734	2950 }
adamc@734	2951
adamc@734	2952 extern int uw_hash_blocksize;
adamc@734	2953
adamc@734	2954 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	2955 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	2956 int i;
adamc@734	2957
adamc@734	2958 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	2959 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	2960
adamc@734	2961 return r;
adamc@734	2962 }
adamc@734	2963
adamc@734	2964 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@734	2965 return uw_cookie_sig(ctx);
adamc@734	2966 }
adamc@737	2967
adamc@737	2968 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	2969 return f.name;
adamc@737	2970 }
adamc@737	2971
adamc@740	2972 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	2973 return f.type;
adamc@740	2974 }
adamc@740	2975
adamc@745	2976 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	2977 return b.size;
adamc@745	2978 }
adamc@745	2979
adamc@737	2980 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	2981 return f.data;
adamc@737	2982 }
adamc@741	2983
adamc@741	2984 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	2985 cleanup *cl;
adamc@741	2986 int len;
adamc@741	2987
adamc@921	2988 ctx->returning_blob = 1;
adamc@741	2989 buf_reset(&ctx->outHeaders);
adamc@741	2990 buf_reset(&ctx->page);
adamc@741	2991
adamc@856	2992 uw_write_header(ctx, on_success);
adamc@856	2993 uw_write_header(ctx, "Content-Type: ");
adamc@741	2994 uw_write_header(ctx, mimeType);
adamc@741	2995 uw_write_header(ctx, "\r\nContent-Length: ");
adamc@741	2996 buf_check(&ctx->outHeaders, INTS_MAX);
adamc@741	2997 sprintf(ctx->outHeaders.front, "%d%n", b.size, &len);
adamc@741	2998 ctx->outHeaders.front += len;
adamc@741	2999 uw_write_header(ctx, "\r\n");
adamc@741	3000
adamc@741	3001 buf_append(&ctx->page, b.data, b.size);
adamc@741	3002
adamc@741	3003 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3004 cl->func(cl->arg);
adamc@741	3005
adamc@741	3006 ctx->cleanup_front = ctx->cleanup;
adamc@741	3007
adamc@741	3008 longjmp(ctx->jmp_buf, RETURN_BLOB);
adamc@741	3009 }
adamc@874	3010
adamc@874	3011 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adamc@874	3012 uw_Basis_string r = uw_malloc(ctx, strlen(s) + 1);
adamc@874	3013
adamc@874	3014 for (; *s; ++s) {
adamc@874	3015 if (s[0] == '\'') {
adamc@874	3016 *r++ = '\'';
adamc@874	3017 for (++s; *s; ++s) {
adamc@874	3018 if (s[0] == '\'') {
adamc@874	3019 *r++ = '\'';
adamc@874	3020 break;
adamc@874	3021 } else if (s[0] == '\\') {
adamc@874	3022 if (s[1] == '\\') {
adamc@874	3023 *r++ = '\\';
adamc@874	3024 *r++ = '\\';
adamc@874	3025 ++s;
adamc@874	3026 } else if (s[1] == '\'') {
adamc@874	3027 *r++ = '\\';
adamc@874	3028 *r++ = '\'';
adamc@874	3029 ++s;
adamc@874	3030 } else
adamc@874	3031 *r++ = '\'';
adamc@874	3032 } else
adamc@874	3033 *r++ = s[0];
adamc@874	3034 }
adamc@874	3035 if (*s == 0) break;
adamc@874	3036 } else if (s[0] == 'T' && s[1] == '.')
adamc@874	3037 ++s;
adamc@874	3038 else
adamc@874	3039 *r++ = s[0];
adamc@874	3040 }
adamc@874	3041
adamc@874	3042 return r;
adamc@874	3043 }
adamc@874	3044
adamc@922	3045 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3046 va_list ap;
adamc@922	3047 size_t len = 1;
adamc@922	3048 char s, r, *s2;
adamc@922	3049
adamc@922	3050 va_start(ap, ctx);
adamc@922	3051 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3052 len += strlen(s);
adamc@922	3053 va_end(ap);
adamc@922	3054
adamc@922	3055 r = uw_malloc(ctx, len);
adamc@922	3056 va_start(ap, ctx);
adamc@922	3057 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3058 while (*s)
adamc@922	3059 s2++ = s++;
adamc@922	3060 va_end(ap);
adamc@922	3061 *s2 = 0;
adamc@922	3062
adamc@922	3063 return r;
adamc@922	3064 }
adamc@1006	3065
adamc@1006	3066 uw_Basis_time uw_Basis_now(uw_context ctx) {
adamc@1006	3067 return time(NULL);
adamc@1006	3068 }

Mercurial > urweb

annotate src/c/urweb.c @ 1027:be1aec7333a5