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

annotate src/c/urweb.c @ 1025:7facf72aaf0a

Initial form for paper assignment

author	Adam Chlipala <adamc@hcoop.net>
date	Sun, 01 Nov 2009 14:26:20 -0500
parents	e46227efcbba
children	be1aec7333a5

rev	line source
adamc@741	1 #define _XOPEN_SOURCE 500
adamc@436	2
adamc@117	3 #include <stdlib.h>
adamc@102	4 #include <stdio.h>
adamc@117	5 #include <string.h>
adamc@457	6 #include <strings.h>
adamc@106	7 #include <ctype.h>
adamc@167	8 #include <setjmp.h>
adamc@167	9 #include <stdarg.h>
adamc@682	10 #include <assert.h>
adamc@741	11 #include <ctype.h>
adamc@102	12
adamc@667	13 #include <pthread.h>
adamc@667	14
adamc@102	15 #include "types.h"
adamc@102	16
adamc@311	17 uw_unit uw_unit_v = {};
adamc@102	18
adamc@667	19
adamc@667	20 // Socket extras
adamc@667	21
adamc@863	22 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667	23 while (len > 0) {
adamc@856	24 ssize_t n = send(sock, buf, len, 0);
adamc@856	25
adamc@856	26 if (n < 0)
adamc@856	27 return n;
adamc@856	28
adamc@856	29 buf += n;
adamc@856	30 len -= n;
adamc@856	31 }
adamc@856	32
adamc@856	33 return 0;
adamc@856	34 }
adamc@856	35
adamc@856	36 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856	37 while (len > 0) {
adamc@856	38 ssize_t n = write(fd, buf, len);
adamc@667	39
adamc@667	40 if (n < 0)
adamc@667	41 return n;
adamc@667	42
adamc@667	43 buf += n;
adamc@667	44 len -= n;
adamc@667	45 }
adamc@667	46
adamc@667	47 return 0;
adamc@667	48 }
adamc@667	49
adamc@667	50
adamc@667	51 // Buffers
adamc@667	52
adamc@667	53 typedef struct {
adamc@667	54 char start, front, *back;
adamc@667	55 } buf;
adamc@667	56
adamc@667	57 static void buf_init(buf *b, size_t s) {
adamc@667	58 b->front = b->start = malloc(s);
adamc@667	59 b->back = b->front + s;
adamc@667	60 }
adamc@667	61
adamc@667	62 static void buf_free(buf *b) {
adamc@667	63 free(b->start);
adamc@667	64 }
adamc@667	65
adamc@667	66 static void buf_reset(buf *b) {
adamc@667	67 b->front = b->start;
adamc@667	68 }
adamc@667	69
adamc@667	70 static void buf_check(buf *b, size_t extra) {
adamc@667	71 if (b->back - b->front < extra) {
adamc@667	72 size_t desired = b->front - b->start + extra, next;
adamc@667	73 char *new_heap;
adamc@667	74
adamc@667	75 next = b->back - b->start;
adamc@667	76 if (next == 0)
adamc@667	77 next = 1;
adamc@667	78 for (; next < desired; next *= 2);
adamc@667	79
adamc@667	80 new_heap = realloc(b->start, next);
adamc@667	81 b->front = new_heap + (b->front - b->start);
adamc@667	82 b->back = new_heap + next;
adamc@667	83 b->start = new_heap;
adamc@667	84 }
adamc@667	85 }
adamc@667	86
adamc@667	87 static size_t buf_used(buf *b) {
adamc@667	88 return b->front - b->start;
adamc@667	89 }
adamc@667	90
adamc@667	91 static size_t buf_avail(buf *b) {
adamc@667	92 return b->back - b->start;
adamc@667	93 }
adamc@667	94
adamc@668	95 static void buf_append(buf b, const char s, size_t len) {
adamc@672	96 buf_check(b, len+1);
adamc@668	97 memcpy(b->front, s, len);
adamc@668	98 b->front += len;
adamc@672	99 *b->front = 0;
adamc@668	100 }
adamc@667	101
adamc@668	102
adamc@672	103 // Persistent state types
adamc@667	104
adamc@667	105 typedef enum { UNUSED, USED } usage;
adamc@667	106
adamc@667	107 typedef struct client {
adamc@682	108 unsigned id;
adamc@667	109 usage mode;
adamc@682	110 int pass;
adamc@682	111 struct client *next;
adamc@689	112 pthread_mutex_t lock, pull_lock;
adamc@682	113 buf msgs;
adamc@682	114 int sock;
adamc@863	115 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	116 int (*close)(int fd);
adamc@682	117 time_t last_contact;
adamc@682	118 unsigned n_channels;
adamc@685	119 unsigned refcount;
adamc@667	120 } client;
adamc@667	121
adamc@672	122
adamc@672	123 // Persistent client state
adamc@672	124
adamc@682	125 static client *clients, clients_free, *clients_used;
adamc@682	126 static unsigned n_clients;
adamc@667	127
adamc@667	128 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@667	129
adamc@682	130 static client *new_client() {
adamc@667	131 client *c;
adamc@667	132
adamc@667	133 pthread_mutex_lock(&clients_mutex);
adamc@667	134
adamc@667	135 if (clients_free) {
adamc@667	136 c = clients_free;
adamc@682	137 clients_free = clients_free->next;
adamc@667	138 }
adamc@667	139 else {
adamc@667	140 ++n_clients;
adamc@667	141 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	142 c = malloc(sizeof(client));
adamc@667	143 c->id = n_clients-1;
adamc@682	144 pthread_mutex_init(&c->lock, NULL);
adamc@689	145 pthread_mutex_init(&c->pull_lock, NULL);
adamc@682	146 buf_init(&c->msgs, 0);
adamc@667	147 clients[n_clients-1] = c;
adamc@667	148 }
adamc@667	149
adamc@682	150 pthread_mutex_lock(&c->lock);
adamc@667	151 c->mode = USED;
adamc@682	152 c->pass = rand();
adamc@682	153 c->sock = -1;
adamc@682	154 c->last_contact = time(NULL);
adamc@682	155 buf_reset(&c->msgs);
adamc@682	156 c->n_channels = 0;
adamc@685	157 c->refcount = 0;
adamc@682	158 pthread_mutex_unlock(&c->lock);
adamc@682	159
adamc@682	160 c->next = clients_used;
adamc@682	161 clients_used = c;
adamc@667	162
adamc@667	163 pthread_mutex_unlock(&clients_mutex);
adamc@667	164
adamc@667	165 return c;
adamc@667	166 }
adamc@667	167
adamc@685	168 static void use_client(client *c) {
adamc@685	169 pthread_mutex_lock(&c->lock);
adamc@685	170 ++c->refcount;
adamc@685	171 pthread_mutex_unlock(&c->lock);
adamc@689	172 pthread_mutex_lock(&c->pull_lock);
adamc@685	173 }
adamc@685	174
adamc@685	175 static void release_client(client *c) {
adamc@689	176 pthread_mutex_unlock(&c->pull_lock);
adamc@685	177 pthread_mutex_lock(&c->lock);
adamc@685	178 --c->refcount;
adamc@685	179 pthread_mutex_unlock(&c->lock);
adamc@689	180
adamc@685	181 }
adamc@685	182
adamc@856	183 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adamc@667	184
adamc@682	185 static client *find_client(unsigned id) {
adamc@667	186 client *c;
adamc@667	187
adamc@667	188 pthread_mutex_lock(&clients_mutex);
adamc@667	189
adamc@667	190 if (id >= n_clients) {
adamc@667	191 pthread_mutex_unlock(&clients_mutex);
adamc@668	192 return NULL;
adamc@667	193 }
adamc@667	194
adamc@667	195 c = clients[id];
adamc@667	196
adamc@668	197 pthread_mutex_unlock(&clients_mutex);
adamc@668	198 return c;
adamc@668	199 }
adamc@668	200
adamc@856	201 static char *on_success = "HTTP/1.1 200 OK\r\n";
adamc@856	202
adamc@856	203 void uw_set_on_success(char *s) {
adamc@856	204 on_success = s;
adamc@856	205 }
adamc@856	206
adamc@863	207 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	208 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	209 int (*close)(int fd),
adamc@864	210 void *logger_data, uw_logger log_error) {
adamc@682	211 client *c = find_client(id);
adamc@668	212
adamc@668	213 if (c == NULL) {
adamc@667	214 close(sock);
adamc@864	215 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	216 return;
adamc@667	217 }
adamc@667	218
adamc@682	219 pthread_mutex_lock(&c->lock);
adamc@671	220
adamc@682	221 if (c->mode != USED) {
adamc@682	222 pthread_mutex_unlock(&c->lock);
adamc@667	223 close(sock);
adamc@864	224 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	225 return;
adamc@667	226 }
adamc@667	227
adamc@682	228 if (pass != c->pass) {
adamc@682	229 pthread_mutex_unlock(&c->lock);
adamc@682	230 close(sock);
adamc@864	231 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	232 return;
adamc@667	233 }
adamc@667	234
adamc@682	235 if (c->sock != -1) {
adamc@863	236 c->close(c->sock);
adamc@682	237 c->sock = -1;
adamc@682	238 }
adamc@667	239
adamc@682	240 c->last_contact = time(NULL);
adamc@682	241
adamc@682	242 if (buf_used(&c->msgs) > 0) {
adamc@863	243 send(sock, on_success, strlen(on_success));
adamc@863	244 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863	245 send(sock, c->msgs.start, buf_used(&c->msgs));
adamc@682	246 buf_reset(&c->msgs);
adamc@667	247 close(sock);
adamc@667	248 }
adamc@863	249 else {
adamc@682	250 c->sock = sock;
adamc@863	251 c->send = send;
adamc@863	252 c->close = close;
adamc@863	253 }
adamc@667	254
adamc@682	255 pthread_mutex_unlock(&c->lock);
adamc@667	256 }
adamc@667	257
adamc@682	258 static void free_client(client *c) {
adamc@682	259 c->mode = UNUSED;
adamc@682	260 c->pass = -1;
adamc@667	261
adamc@682	262 c->next = clients_free;
adamc@682	263 clients_free = c;
adamc@667	264 }
adamc@667	265
adamc@682	266 static uw_Basis_channel new_channel(client *c) {
adamc@682	267 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	268 return ch;
adamc@668	269 }
adamc@668	270
adamc@685	271 static void client_send(client c, buf msg) {
adamc@685	272 pthread_mutex_lock(&c->lock);
adamc@671	273
adamc@682	274 if (c->sock != -1) {
adamc@863	275 c->send(c->sock, on_success, strlen(on_success));
adamc@863	276 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863	277 c->send(c->sock, msg->start, buf_used(msg));
adamc@863	278 c->close(c->sock);
adamc@682	279 c->sock = -1;
adamc@682	280 } else
adamc@682	281 buf_append(&c->msgs, msg->start, buf_used(msg));
adamc@671	282
adamc@685	283 pthread_mutex_unlock(&c->lock);
adamc@668	284 }
adamc@668	285
adamc@668	286
adamc@668	287 // Global entry points
adamc@668	288
adamc@866	289 extern void uw_client_init();
adamc@866	290
adamc@668	291 void uw_global_init() {
adamc@668	292 srand(time(NULL) ^ getpid());
adamc@668	293
adamc@668	294 clients = malloc(0);
adamc@866	295
adamc@866	296 uw_client_init();
adamc@668	297 }
adamc@668	298
adamc@668	299
adamc@667	300 // Single-request state
adamc@667	301
adamc@167	302 #define ERROR_BUF_LEN 1024
adamc@167	303
adamc@323	304 typedef struct regions {
adamc@323	305 struct regions *next;
adamc@323	306 } regions;
adamc@323	307
adamc@425	308 typedef struct {
adamc@425	309 void (func)(void);
adamc@425	310 void *arg;
adamc@425	311 } cleanup;
adamc@425	312
adamc@671	313 typedef struct {
adamc@682	314 unsigned client;
adamc@671	315 buf msgs;
adamc@682	316 } delta;
adamc@671	317
adamc@737	318 typedef enum {
adamc@759	319 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	320 } input_kind;
adamc@737	321
adamc@756	322 typedef struct input {
adamc@737	323 input_kind kind;
adamc@737	324 union {
adamc@737	325 char *normal;
adamc@739	326 uw_Basis_file file;
adamc@756	327 struct {
adamc@759	328 struct input fields, parent;
adamc@756	329 } subform;
adamc@759	330 struct {
adamc@759	331 struct input entries, parent;
adamc@759	332 } subforms;
adamc@759	333 struct {
adamc@759	334 struct input fields, next, *parent;
adamc@759	335 } entry;
adamc@737	336 } data;
adamc@737	337 } input;
adamc@737	338
adamc@771	339 typedef struct {
adamc@771	340 void *data;
adamc@771	341 uw_callback commit, rollback, free;
adamc@771	342 } transactional;
adamc@771	343
adamc@311	344 struct uw_context {
adamc@854	345 char (get_header)(void , const char );
adamc@854	346 void *get_header_data;
adamc@457	347
adamc@666	348 buf outHeaders, page, heap, script;
adamc@921	349 int returning_blob;
adamc@759	350 input inputs, subinputs, *cur_container;
adamc@756	351 size_t n_subinputs, used_subinputs;
adamc@167	352
adamc@565	353 int source_count;
adamc@562	354
adamc@272	355 void *db;
adamc@272	356
adamc@167	357 jmp_buf jmp_buf;
adamc@167	358
adamc@323	359 regions *regions;
adamc@323	360
adamc@425	361 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	362
adamc@667	363 const char script_header, url_prefix;
adamc@643	364
adamc@736	365 int needs_push, needs_sig;
adamc@693	366
adamc@682	367 size_t n_deltas, used_deltas;
adamc@682	368 delta *deltas;
adamc@671	369
adamc@673	370 int timeout;
adamc@673	371
adamc@682	372 client *client;
adamc@682	373
adamc@771	374 transactional *transactionals;
adamc@771	375 size_t n_transactionals, used_transactionals;
adamc@771	376
adamc@167	377 char error_message[ERROR_BUF_LEN];
adamc@117	378 };
adamc@117	379
adamc@683	380 extern int uw_inputs_len, uw_timeout;
adamc@144	381
adamc@687	382 uw_context uw_init() {
adamc@311	383 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	384
adamc@854	385 ctx->get_header = NULL;
adamc@854	386 ctx->get_header_data = NULL;
adamc@457	387
adamc@687	388 buf_init(&ctx->outHeaders, 0);
adamc@687	389 buf_init(&ctx->page, 0);
adamc@921	390 ctx->returning_blob = 0;
adamc@687	391 buf_init(&ctx->heap, 0);
adamc@698	392 buf_init(&ctx->script, 1);
adamc@667	393 ctx->script.start[0] = 0;
adamc@136	394
adamc@737	395 ctx->inputs = calloc(uw_inputs_len, sizeof(input));
adamc@759	396 ctx->cur_container = NULL;
adamc@756	397 ctx->subinputs = malloc(0);
adamc@756	398 ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	399
adamc@272	400 ctx->db = NULL;
adamc@272	401
adamc@323	402 ctx->regions = NULL;
adamc@323	403
adamc@425	404 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	405
adamc@643	406 ctx->script_header = "";
adamc@667	407 ctx->url_prefix = "/";
adamc@693	408 ctx->needs_push = 0;
adamc@736	409 ctx->needs_sig = 0;
adamc@643	410
adamc@167	411 ctx->error_message[0] = 0;
adamc@167	412
adamc@565	413 ctx->source_count = 0;
adamc@562	414
adamc@682	415 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	416 ctx->deltas = malloc(0);
adamc@671	417
adamc@673	418 ctx->timeout = uw_timeout;
adamc@673	419
adamc@700	420 ctx->client = NULL;
adamc@700	421
adamc@700	422 ctx->error_message[0] = 0;
adamc@700	423
adamc@771	424 ctx->transactionals = malloc(0);
adamc@771	425 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	426
adamc@117	427 return ctx;
adamc@106	428 }
adamc@106	429
adamc@311	430 void uw_set_db(uw_context ctx, void *db) {
adamc@272	431 ctx->db = db;
adamc@272	432 }
adamc@272	433
adamc@311	434 void *uw_get_db(uw_context ctx) {
adamc@272	435 return ctx->db;
adamc@272	436 }
adamc@272	437
adamc@311	438 void uw_free(uw_context ctx) {
adamc@671	439 size_t i;
adamc@671	440
adamc@666	441 buf_free(&ctx->outHeaders);
adamc@666	442 buf_free(&ctx->script);
adamc@666	443 buf_free(&ctx->page);
adamc@666	444 buf_free(&ctx->heap);
adamc@144	445 free(ctx->inputs);
adamc@756	446 free(ctx->subinputs);
adamc@425	447 free(ctx->cleanup);
adamc@771	448 free(ctx->transactionals);
adamc@671	449
adamc@682	450 for (i = 0; i < ctx->n_deltas; ++i)
adamc@671	451 buf_free(&ctx->deltas[i].msgs);
adamc@671	452
adamc@136	453 free(ctx);
adamc@136	454 }
adamc@136	455
adamc@562	456 void uw_reset_keep_error_message(uw_context ctx) {
adamc@756	457 size_t i;
adamc@756	458
adamc@666	459 buf_reset(&ctx->outHeaders);
adamc@666	460 buf_reset(&ctx->script);
adamc@667	461 ctx->script.start[0] = 0;
adamc@666	462 buf_reset(&ctx->page);
adamc@921	463 ctx->returning_blob = 0;
adamc@666	464 buf_reset(&ctx->heap);
adamc@323	465 ctx->regions = NULL;
adamc@425	466 ctx->cleanup_front = ctx->cleanup;
adamc@565	467 ctx->source_count = 0;
adamc@682	468 ctx->used_deltas = 0;
adamc@682	469 ctx->client = NULL;
adamc@759	470 ctx->cur_container = NULL;
adamc@771	471 ctx->used_transactionals = 0;
adamc@167	472 }
adamc@167	473
adamc@562	474 void uw_reset_keep_request(uw_context ctx) {
adamc@562	475 uw_reset_keep_error_message(ctx);
adamc@562	476 ctx->error_message[0] = 0;
adamc@167	477 }
adamc@167	478
adamc@311	479 void uw_reset(uw_context ctx) {
adamc@311	480 uw_reset_keep_request(ctx);
adamc@737	481 memset(ctx->inputs, 0, uw_inputs_len * sizeof(input));
adamc@756	482 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adamc@756	483 ctx->used_subinputs = 0;
adamc@144	484 }
adamc@144	485
adamc@311	486 void uw_db_init(uw_context);
adamc@311	487 void uw_handle(uw_context, char *);
adamc@167	488
adamc@311	489 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	490 int r = setjmp(ctx->jmp_buf);
adamc@272	491
adamc@272	492 if (r == 0)
adamc@311	493 uw_db_init(ctx);
adamc@272	494
adamc@272	495 return r;
adamc@272	496 }
adamc@272	497
adamc@854	498 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	499 ctx->get_header = get_header;
adamc@854	500 ctx->get_header_data = get_header_data;
adamc@742	501 }
adamc@742	502
adamc@671	503 int uw_db_begin(uw_context);
adamc@167	504
adamc@801	505 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	506 va_list ap;
adamc@801	507 va_start(ap, fmt);
adamc@801	508
adamc@801	509 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	510 }
adamc@801	511
adamc@311	512 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	513 cleanup *cl;
adamc@425	514
adamc@167	515 va_list ap;
adamc@167	516 va_start(ap, fmt);
adamc@167	517
adamc@167	518 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	519
adamc@425	520 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	521 cl->func(cl->arg);
adamc@425	522
adamc@425	523 ctx->cleanup_front = ctx->cleanup;
adamc@425	524
adamc@190	525 longjmp(ctx->jmp_buf, fk);
adamc@167	526 }
adamc@167	527
adamc@425	528 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	529 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	530 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	531 if (len == 0)
adamc@425	532 newLen = 1;
adamc@425	533 else
adamc@428	534 newLen = len * 2;
adamc@470	535 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	536 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	537 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	538 }
adamc@425	539
adamc@425	540 ctx->cleanup_front->func = func;
adamc@425	541 ctx->cleanup_front->arg = arg;
adamc@425	542 ++ctx->cleanup_front;
adamc@425	543 }
adamc@425	544
adamc@682	545 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adamc@854	546 return ctx->get_header(ctx->get_header_data, h);
adamc@682	547 }
adamc@682	548
adamc@682	549 void uw_login(uw_context ctx) {
adamc@693	550 if (ctx->needs_push) {
adamc@682	551 char id_s, pass_s;
adamc@682	552
adamc@682	553 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682	554 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682	555 unsigned id = atoi(id_s);
adamc@682	556 int pass = atoi(pass_s);
adamc@682	557 client *c = find_client(id);
adamc@682	558
adamc@682	559 if (c == NULL)
adamc@682	560 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", id_s, pass_s);
adamc@682	561 else {
adamc@685	562 use_client(c);
adamc@682	563 ctx->client = c;
adamc@682	564
adamc@682	565 if (c->mode != USED)
adamc@682	566 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682	567 if (c->pass != pass)
adamc@682	568 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682	569 }
adamc@682	570 } else {
adamc@682	571 client *c = new_client();
adamc@685	572 use_client(c);
adamc@682	573 ctx->client = c;
adamc@864	574 }
adamc@682	575 }
adamc@682	576 }
adamc@682	577
adamc@671	578 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	579 int r = setjmp(ctx->jmp_buf);
adamc@671	580
adamc@671	581 if (r == 0) {
adamc@671	582 if (uw_db_begin(ctx))
adamc@671	583 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adamc@682	584
adamc@671	585 uw_handle(ctx, path);
adamc@671	586 }
adamc@671	587
adamc@671	588 return r;
adamc@671	589 }
adamc@671	590
adamc@772	591 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	592 if (ctx->client == NULL)
adamc@682	593 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	594
adamc@682	595 return ctx->client->id;
adamc@682	596 }
adamc@682	597
adamc@425	598 void uw_pop_cleanup(uw_context ctx) {
adamc@425	599 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	600 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	601
adamc@425	602 --ctx->cleanup_front;
adamc@425	603 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	604 }
adamc@425	605
adamc@311	606 char *uw_error_message(uw_context ctx) {
adamc@167	607 return ctx->error_message;
adamc@167	608 }
adamc@167	609
adamc@737	610 extern int uw_input_num(const char*);
adamc@144	611
adamc@759	612 static input *INP(uw_context ctx) {
adamc@759	613 if (ctx->cur_container == NULL)
adamc@759	614 return ctx->inputs;
adamc@759	615 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	616 return ctx->cur_container->data.subform.fields;
adamc@759	617 else if (ctx->cur_container->kind == ENTRY)
adamc@759	618 return ctx->cur_container->data.entry.fields;
adamc@759	619 else
adamc@760	620 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	621 }
adamc@759	622
adamc@760	623 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	624 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	625 *ptr += new_start - old_start;
adamc@760	626 }
adamc@760	627
adamc@760	628 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	629 switch (x->kind) {
adamc@759	630 case SUBFORM:
adamc@760	631 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	632 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	633 break;
adamc@759	634 case SUBFORMS:
adamc@760	635 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	636 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	637 break;
adamc@759	638 case ENTRY:
adamc@760	639 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	640 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	641 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@759	642 }
adamc@759	643 }
adamc@759	644
adamc@759	645 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	646 size_t i;
adamc@759	647 input *r;
adamc@759	648
adamc@759	649 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@759	650 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	651 size_t offset = new_subinputs - ctx->subinputs;
adamc@759	652
adamc@760	653 if (ctx->subinputs != new_subinputs) {
adamc@760	654 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	655 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	656 for (i = 0; i < uw_inputs_len; ++i)
adamc@760	657 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	658
adamc@760	659 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	660
adamc@760	661 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	662 ctx->subinputs = new_subinputs;
adamc@760	663 }
adamc@759	664 }
adamc@759	665
adamc@759	666 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	667
adamc@759	668 for (i = 0; i < len; ++i)
adamc@759	669 ctx->subinputs[ctx->used_subinputs++].kind = UNUSED;
adamc@759	670
adamc@759	671 return r;
adamc@759	672 }
adamc@756	673
adamc@801	674 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@756	675 if (!strcasecmp(name, ".b")) {
adamc@756	676 int n = uw_input_num(value);
adamc@756	677 input *inps;
adamc@756	678
adamc@801	679 if (n < 0) {
adamc@801	680 uw_set_error(ctx, "Bad subform name %s", value);
adamc@801	681 return -1;
adamc@801	682 }
adamc@801	683
adamc@801	684 if (n >= uw_inputs_len) {
adamc@801	685 uw_set_error(ctx, "For subform name %s, index %d is out of range", value, n);
adamc@801	686 return -1;
adamc@801	687 }
adamc@756	688
adamc@759	689 inps = check_input_space(ctx, uw_inputs_len);
adamc@759	690
adamc@759	691 INP(ctx)[n].kind = SUBFORM;
adamc@759	692 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	693 INP(ctx)[n].data.subform.fields = inps;
adamc@759	694 ctx->cur_container = &INP(ctx)[n];
adamc@756	695 } else if (!strcasecmp(name, ".e")) {
adamc@756	696 input *tmp;
adamc@756	697
adamc@801	698 if (ctx->cur_container == NULL) {
adamc@801	699 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	700 return -1;
adamc@801	701 }
adamc@756	702
adamc@759	703 tmp = ctx->cur_container;
adamc@759	704 switch (tmp->kind) {
adamc@759	705 case SUBFORM:
adamc@759	706 ctx->cur_container = tmp->data.subform.parent;
adamc@759	707 tmp->data.subform.parent = NULL;
adamc@759	708 break;
adamc@759	709 case SUBFORMS:
adamc@759	710 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	711 tmp->data.subforms.parent = NULL;
adamc@759	712 break;
adamc@759	713 case ENTRY:
adamc@759	714 ctx->cur_container = tmp->data.entry.parent;
adamc@759	715 break;
adamc@759	716 default:
adamc@801	717 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	718 return -1;
adamc@759	719 }
adamc@759	720 } else if (!strcasecmp(name, ".s")) {
adamc@759	721 int n = uw_input_num(value);
adamc@759	722
adamc@801	723 if (n < 0) {
adamc@801	724 uw_set_error(ctx, "Bad subforms name %s", value);
adamc@801	725 return -1;
adamc@801	726 }
adamc@801	727
adamc@801	728 if (n >= uw_inputs_len) {
adamc@801	729 uw_set_error(ctx, "For subforms name %s, index %d is out of range", value, n);
adamc@801	730 return -1;
adamc@801	731 }
adamc@759	732
adamc@759	733 INP(ctx)[n].kind = SUBFORMS;
adamc@759	734 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	735 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	736 ctx->cur_container = &INP(ctx)[n];
adamc@759	737 } else if (!strcasecmp(name, ".i")) {
adamc@759	738 input *inps;
adamc@759	739
adamc@801	740 if (!ctx->cur_container) {
adamc@801	741 uw_set_error(ctx, "New entry without container");
adamc@801	742 return -1;
adamc@801	743 }
adamc@801	744
adamc@801	745 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	746 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	747 return -1;
adamc@801	748 }
adamc@759	749
adamc@759	750 inps = check_input_space(ctx, uw_inputs_len + 1);
adamc@759	751
adamc@759	752 inps->kind = ENTRY;
adamc@759	753 inps->data.entry.parent = ctx->cur_container;
adamc@759	754 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	755 ctx->cur_container->data.subforms.entries = inps;
adamc@759	756
adamc@759	757 inps->data.entry.fields = inps+1;
adamc@759	758 ctx->cur_container = inps;
adamc@756	759 } else {
adamc@756	760 int n = uw_input_num(name);
adamc@756	761
adamc@801	762 if (n < 0) {
adamc@801	763 uw_set_error(ctx, "Bad input name %s", name);
adamc@801	764 return -1;
adamc@801	765 }
adamc@801	766
adamc@801	767 if (n >= uw_inputs_len) {
adamc@801	768 uw_set_error(ctx, "For input name %s, index %d is out of range", name, n);
adamc@801	769 return -1;
adamc@801	770 }
adamc@756	771
adamc@756	772 INP(ctx)[n].kind = NORMAL;
adamc@756	773 INP(ctx)[n].data.normal = value;
adamc@756	774 }
adamc@801	775
adamc@801	776 return 0;
adamc@144	777 }
adamc@144	778
adamc@311	779 char *uw_get_input(uw_context ctx, int n) {
adamc@169	780 if (n < 0)
adamc@311	781 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311	782 if (n >= uw_inputs_len)
adamc@311	783 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	784
adamc@756	785 switch (INP(ctx)[n].kind) {
adamc@737	786 case UNSET:
adamc@737	787 return NULL;
adamc@739	788 case FIL:
adamc@739	789 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	790 case SUBFORM:
adamc@756	791 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	792 case SUBFORMS:
adamc@759	793 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	794 case ENTRY:
adamc@759	795 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	796 case NORMAL:
adamc@756	797 return INP(ctx)[n].data.normal;
adamc@737	798 default:
adamc@737	799 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	800 }
adamc@138	801 }
adamc@138	802
adamc@311	803 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	804 if (n < 0)
adamc@311	805 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311	806 if (n >= uw_inputs_len)
adamc@311	807 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	808
adamc@756	809 switch (INP(ctx)[n].kind) {
adamc@737	810 case UNSET:
adamc@737	811 return "";
adamc@739	812 case FIL:
adamc@739	813 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	814 case SUBFORM:
adamc@756	815 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	816 case SUBFORMS:
adamc@759	817 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	818 case ENTRY:
adamc@759	819 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	820 case NORMAL:
adamc@756	821 return INP(ctx)[n].data.normal;
adamc@737	822 default:
adamc@737	823 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	824 }
adamc@737	825 }
adamc@737	826
adamc@801	827 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@737	828 int n = uw_input_num(name);
adamc@737	829
adamc@801	830 if (n < 0) {
adamc@801	831 uw_set_error(ctx, "Bad file input name %s", name);
adamc@801	832 return -1;
adamc@801	833 }
adamc@801	834
adamc@801	835 if (n >= uw_inputs_len) {
adamc@801	836 uw_set_error(ctx, "For file input name %s, index %d is out of range", name, n);
adamc@801	837 return -1;
adamc@801	838 }
adamc@737	839
adamc@739	840 ctx->inputs[n].kind = FIL;
adamc@739	841 ctx->inputs[n].data.file = f;
adamc@801	842
adamc@801	843 return 0;
adamc@737	844 }
adamc@737	845
adamc@739	846 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	847
adamc@760	848
adamc@760	849 static void parents(input *inp) {
adamc@760	850 printf("Stack: %p\n", inp);
adamc@760	851 while (inp) {
adamc@760	852 switch (inp->kind) {
adamc@760	853 case NORMAL:
adamc@760	854 printf("Normal(%p)\n", inp);
adamc@760	855 break;
adamc@760	856 case FIL:
adamc@760	857 printf("File(%p)\n", inp);
adamc@760	858 break;
adamc@760	859 case SUBFORM:
adamc@760	860 printf("Subform; fields = %p\n", inp->data.subform.fields);
adamc@760	861 inp = inp->data.subform.parent;
adamc@760	862 break;
adamc@760	863 case SUBFORMS:
adamc@760	864 printf("Subforms; entries = %p\n", inp->data.subforms.entries);
adamc@760	865 inp = inp->data.subforms.parent;
adamc@760	866 break;
adamc@760	867 case ENTRY:
adamc@760	868 printf("Entry; fields = %p; next = %p\n", inp->data.entry.fields, inp->data.entry.next);
adamc@760	869 inp = inp->data.entry.parent;
adamc@760	870 break;
adamc@760	871 default:
adamc@760	872 inp = NULL;
adamc@760	873 }
adamc@760	874 }
adamc@760	875 }
adamc@760	876
adamc@739	877 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	878 if (n < 0)
adamc@737	879 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@737	880 if (n >= uw_inputs_len)
adamc@737	881 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	882
adamc@756	883 switch (INP(ctx)[n].kind) {
adamc@737	884 case UNSET:
adamc@737	885 {
adamc@739	886 char *data = uw_malloc(ctx, 0);
adamc@740	887 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	888 return f;
adamc@737	889 }
adamc@739	890 case FIL:
adamc@756	891 return INP(ctx)[n].data.file;
adamc@737	892 case NORMAL:
adamc@737	893 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	894 case SUBFORM:
adamc@756	895 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	896 case SUBFORMS:
adamc@759	897 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	898 case ENTRY:
adamc@759	899 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	900 default:
adamc@737	901 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	902 }
adamc@190	903 }
adamc@190	904
adamc@756	905 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	906 if (n < 0)
adamc@756	907 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@756	908 if (n >= uw_inputs_len)
adamc@756	909 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	910
adamc@756	911 switch (INP(ctx)[n].kind) {
adamc@756	912 case UNSET:
adamc@756	913 uw_error(ctx, FATAL, "Missing subform");
adamc@756	914 case FIL:
adamc@756	915 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	916 case NORMAL:
adamc@756	917 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	918 case SUBFORMS:
adamc@759	919 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	920 case ENTRY:
adamc@759	921 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	922 case SUBFORM:
adamc@759	923 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	924 ctx->cur_container = &INP(ctx)[n];
adamc@756	925 return;
adamc@756	926 default:
adamc@756	927 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	928 }
adamc@756	929 }
adamc@756	930
adamc@756	931 void uw_leave_subform(uw_context ctx) {
adamc@756	932 input *tmp;
adamc@756	933
adamc@759	934 if (ctx->cur_container == NULL)
adamc@756	935 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	936
adamc@759	937 tmp = ctx->cur_container;
adamc@759	938 ctx->cur_container = tmp->data.subform.parent;
adamc@759	939 tmp->data.subform.parent = NULL;
adamc@759	940 }
adamc@759	941
adamc@759	942 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	943 input *inps;
adamc@759	944
adamc@759	945 if (n < 0)
adamc@759	946 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@759	947 if (n >= uw_inputs_len)
adamc@759	948 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	949
adamc@759	950 switch (INP(ctx)[n].kind) {
adamc@759	951 case UNSET:
adamc@759	952 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	953 case FIL:
adamc@759	954 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	955 case NORMAL:
adamc@759	956 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	957 case SUBFORM:
adamc@759	958 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	959 case ENTRY:
adamc@759	960 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	961 case SUBFORMS:
adamc@759	962 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	963 if (inps) {
adamc@759	964 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	965 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	966 return 1;
adamc@759	967 } else
adamc@759	968 return 0;
adamc@759	969 default:
adamc@759	970 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	971 }
adamc@759	972 }
adamc@759	973
adamc@759	974 int uw_next_entry(uw_context ctx) {
adamc@759	975 if (ctx->cur_container == NULL)
adamc@759	976 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	977
adamc@759	978 switch (ctx->cur_container->kind) {
adamc@759	979 case UNSET:
adamc@759	980 uw_error(ctx, FATAL, "Missing entry");
adamc@759	981 case FIL:
adamc@759	982 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	983 case NORMAL:
adamc@759	984 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	985 case SUBFORM:
adamc@759	986 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	987 case SUBFORMS:
adamc@759	988 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	989 case ENTRY:
adamc@759	990 if (ctx->cur_container->data.entry.next) {
adamc@759	991 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	992 return 1;
adamc@759	993 } else {
adamc@759	994 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	995 return 0;
adamc@759	996 }
adamc@759	997 default:
adamc@759	998 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	999 }
adamc@756	1000 }
adamc@756	1001
adamc@643	1002 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1003 ctx->script_header = s;
adamc@643	1004 }
adamc@643	1005
adamc@667	1006 void uw_set_url_prefix(uw_context ctx, const char *s) {
adamc@667	1007 ctx->url_prefix = s;
adamc@667	1008 }
adamc@667	1009
adamc@693	1010 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1011 ctx->needs_push = n;
adamc@693	1012 }
adamc@693	1013
adamc@736	1014 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1015 ctx->needs_sig = n;
adamc@736	1016 }
adamc@736	1017
adamc@667	1018
adamc@667	1019 static void buf_check_ctx(uw_context ctx, buf b, size_t extra, const char desc) {
adamc@666	1020 if (b->back - b->front < extra) {
adamc@666	1021 size_t desired = b->front - b->start + extra, next;
adamc@136	1022 char *new_heap;
adamc@136	1023
adamc@666	1024 next = b->back - b->start;
adamc@317	1025 if (next == 0)
adamc@317	1026 next = 1;
adamc@317	1027 for (; next < desired; next *= 2);
adamc@136	1028
adamc@666	1029 new_heap = realloc(b->start, next);
adamc@666	1030 b->front = new_heap + (b->front - b->start);
adamc@666	1031 b->back = new_heap + next;
adamc@136	1032
adamc@667	1033 if (new_heap != b->start) {
adamc@666	1034 b->start = new_heap;
adamc@666	1035 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously", desc);
adamc@136	1036 }
adamc@136	1037
adamc@666	1038 b->start = new_heap;
adamc@136	1039 }
adamc@136	1040 }
adamc@136	1041
adamc@832	1042 void uw_check_heap(uw_context ctx, size_t extra) {
adamc@667	1043 buf_check_ctx(ctx, &ctx->heap, extra, "heap chunk");
adamc@666	1044 }
adamc@666	1045
adamc@832	1046 char *uw_heap_front(uw_context ctx) {
adamc@832	1047 return ctx->heap.front;
adamc@832	1048 }
adamc@832	1049
adamc@832	1050 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1051 ctx->heap.front = fr;
adamc@832	1052 }
adamc@832	1053
adamc@311	1054 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136	1055 void *result;
adamc@136	1056
adamc@311	1057 uw_check_heap(ctx, len);
adamc@136	1058
adamc@666	1059 result = ctx->heap.front;
adamc@666	1060 ctx->heap.front += len;
adamc@136	1061 return result;
adamc@117	1062 }
adamc@117	1063
adamc@323	1064 void uw_begin_region(uw_context ctx) {
adamc@666	1065 regions r = (regions ) ctx->heap.front;
adamc@323	1066
adamc@323	1067 uw_check_heap(ctx, sizeof(regions));
adamc@323	1068
adamc@666	1069 ctx->heap.front += sizeof(regions);
adamc@323	1070
adamc@323	1071 r->next = ctx->regions;
adamc@323	1072 ctx->regions = r;
adamc@323	1073 }
adamc@323	1074
adamc@323	1075 void uw_end_region(uw_context ctx) {
adamc@323	1076 regions *r = ctx->regions;
adamc@323	1077
adamc@323	1078 if (r == NULL)
adamc@323	1079 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1080
adamc@666	1081 ctx->heap.front = (char *) r;
adamc@323	1082 ctx->regions = r->next;
adamc@323	1083 }
adamc@323	1084
adamc@324	1085 void uw_memstats(uw_context ctx) {
adamc@666	1086 printf("Headers: %d/%d\n", buf_used(&ctx->outHeaders), buf_avail(&ctx->outHeaders));
adamc@666	1087 printf("Script: %d/%d\n", buf_used(&ctx->script), buf_avail(&ctx->script));
adamc@666	1088 printf("Page: %d/%d\n", buf_used(&ctx->page), buf_avail(&ctx->page));
adamc@666	1089 printf("Heap: %d/%d\n", buf_used(&ctx->heap), buf_avail(&ctx->heap));
adamc@324	1090 }
adamc@324	1091
adamc@311	1092 int uw_send(uw_context ctx, int sock) {
adamc@666	1093 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462	1094
adamc@462	1095 if (n < 0)
adamc@462	1096 return n;
adamc@462	1097
adamc@462	1098 n = uw_really_send(sock, "\r\n", 2);
adamc@462	1099
adamc@462	1100 if (n < 0)
adamc@462	1101 return n;
adamc@462	1102
adamc@666	1103 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462	1104 }
adamc@462	1105
adamc@856	1106 int uw_print(uw_context ctx, int fd) {
adamc@856	1107 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1108
adamc@856	1109 if (n < 0)
adamc@856	1110 return n;
adamc@856	1111
adamc@856	1112 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1113
adamc@856	1114 if (n < 0)
adamc@856	1115 return n;
adamc@856	1116
adamc@856	1117 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1118 }
adamc@856	1119
adamc@860	1120 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1121 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1122
adamc@860	1123 if (n < 0)
adamc@860	1124 return n;
adamc@860	1125
adamc@860	1126 n = output(data, "\r\n", 2);
adamc@860	1127
adamc@860	1128 if (n < 0)
adamc@860	1129 return n;
adamc@860	1130
adamc@860	1131 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1132 }
adamc@860	1133
adamc@462	1134 static void uw_check_headers(uw_context ctx, size_t extra) {
adamc@667	1135 buf_check(&ctx->outHeaders, extra);
adamc@462	1136 }
adamc@462	1137
adamc@462	1138 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1139 int len = strlen(s);
adamc@462	1140
adamc@462	1141 uw_check_headers(ctx, len + 1);
adamc@666	1142 strcpy(ctx->outHeaders.front, s);
adamc@666	1143 ctx->outHeaders.front += len;
adamc@562	1144 }
adamc@562	1145
adamc@562	1146 static void uw_check_script(uw_context ctx, size_t extra) {
adamc@667	1147 buf_check(&ctx->script, extra);
adamc@562	1148 }
adamc@562	1149
adamc@562	1150 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1151 int len = strlen(s);
adamc@562	1152
adamc@562	1153 uw_check_script(ctx, len + 1);
adamc@666	1154 strcpy(ctx->script.front, s);
adamc@666	1155 ctx->script.front += len;
adamc@562	1156 }
adamc@562	1157
adamc@645	1158 const char *uw_Basis_get_script(uw_context ctx, uw_unit u) {
adamc@916	1159 return "<sc>";
adamc@565	1160 }
adamc@565	1161
adamc@695	1162 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1163 if (s[0] == 0)
adamc@695	1164 return "";
adamc@695	1165 else {
adamc@695	1166 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1167 sprintf(r, " onload='%s'", s);
adamc@695	1168 return r;
adamc@695	1169 }
adamc@695	1170 }
adamc@695	1171
adamc@736	1172 extern uw_Basis_string uw_cookie_sig(uw_context);
adamc@736	1173
adamc@694	1174 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1175 if (ctx->client == NULL) {
adamc@736	1176 if (ctx->needs_sig) {
adamc@736	1177 char *sig = uw_cookie_sig(ctx);
adamc@736	1178 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1179 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1180 return r;
adamc@736	1181 }
adamc@736	1182 else
adamc@736	1183 return "";
adamc@736	1184 } else {
adamc@736	1185 char *sig = ctx->needs_sig ? uw_cookie_sig(ctx) : "";
adamc@736	1186 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->url_prefix)
adamc@736	1187 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adamc@736	1188 sprintf(r, "client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adamc@682	1189 ctx->client->id,
adamc@682	1190 ctx->client->pass,
adamc@679	1191 ctx->url_prefix,
adamc@736	1192 ctx->timeout,
adamc@736	1193 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1194 sig,
adamc@736	1195 ctx->needs_sig ? "\";" : "");
adamc@679	1196 return r;
adamc@668	1197 }
adamc@667	1198 }
adamc@667	1199
adamc@574	1200 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1201 char r, s2;
adamc@574	1202
adamc@574	1203 uw_check_heap(ctx, strlen(s) * 4 + 2);
adamc@574	1204
adamc@666	1205 r = s2 = ctx->heap.front;
adamc@574	1206 *s2++ = '"';
adamc@574	1207
adamc@574	1208 for (; *s; s++) {
adamc@574	1209 char c = *s;
adamc@574	1210
adamc@574	1211 switch (c) {
adamc@574	1212 case '"':
adamc@574	1213 strcpy(s2, "\\\"");
adamc@574	1214 s2 += 2;
adamc@574	1215 break;
adamc@574	1216 case '\\':
adamc@574	1217 strcpy(s2, "\\\\");
adamc@574	1218 s2 += 2;
adamc@574	1219 break;
adamc@574	1220 default:
adamc@574	1221 if (isprint(c))
adamc@574	1222 *s2++ = c;
adamc@574	1223 else {
adamc@574	1224 sprintf(s2, "\\%3o", c);
adamc@574	1225 s2 += 4;
adamc@574	1226 }
adamc@574	1227 }
adamc@574	1228 }
adamc@574	1229
adamc@574	1230 strcpy(s2, "\"");
adamc@910	1231 ctx->heap.front = s2 + 2;
adamc@574	1232 return r;
adamc@574	1233 }
adamc@574	1234
adamc@1025	1235 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1025	1236 char r, s2;
adamc@1025	1237
adamc@1025	1238 uw_check_heap(ctx, 6);
adamc@1025	1239
adamc@1025	1240 r = s2 = ctx->heap.front;
adamc@1025	1241 *s2++ = '"';
adamc@1025	1242
adamc@1025	1243 switch (c) {
adamc@1025	1244 case '"':
adamc@1025	1245 strcpy(s2, "\\\"");
adamc@1025	1246 s2 += 2;
adamc@1025	1247 break;
adamc@1025	1248 case '\\':
adamc@1025	1249 strcpy(s2, "\\\\");
adamc@1025	1250 s2 += 2;
adamc@1025	1251 break;
adamc@1025	1252 default:
adamc@1025	1253 if (isprint(c))
adamc@1025	1254 *s2++ = c;
adamc@1025	1255 else {
adamc@1025	1256 sprintf(s2, "\\%3o", c);
adamc@1025	1257 s2 += 4;
adamc@1025	1258 }
adamc@1025	1259 }
adamc@1025	1260
adamc@1025	1261 strcpy(s2, "\"");
adamc@1025	1262 ctx->heap.front = s2 + 2;
adamc@1025	1263 return r;
adamc@1025	1264 }
adamc@1025	1265
adamc@574	1266 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1267 char r, s2;
adamc@574	1268
adamc@574	1269 uw_check_script(ctx, strlen(s) * 4 + 2);
adamc@574	1270
adamc@666	1271 r = s2 = ctx->script.front;
adamc@574	1272 *s2++ = '"';
adamc@574	1273
adamc@574	1274 for (; *s; s++) {
adamc@574	1275 char c = *s;
adamc@574	1276
adamc@574	1277 switch (c) {
adamc@577	1278 case '\'':
adamc@574	1279 strcpy(s2, "\\\"");
adamc@574	1280 s2 += 2;
adamc@574	1281 break;
adamc@574	1282 case '\\':
adamc@574	1283 strcpy(s2, "\\\\");
adamc@574	1284 s2 += 2;
adamc@574	1285 break;
adamc@574	1286 default:
adamc@574	1287 if (isprint(c))
adamc@574	1288 *s2++ = c;
adamc@574	1289 else {
adamc@574	1290 sprintf(s2, "\\%3o", c);
adamc@574	1291 s2 += 4;
adamc@574	1292 }
adamc@574	1293 }
adamc@574	1294 }
adamc@574	1295
adamc@574	1296 strcpy(s2, "\"");
adamc@666	1297 ctx->script.front = s2 + 1;
adamc@574	1298 return r;
adamc@574	1299 }
adamc@574	1300
adamc@682	1301 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1302 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1303 return "null";
adamc@682	1304 else {
adamc@682	1305 int len;
adamc@682	1306 char *r;
adamc@682	1307
adamc@682	1308 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1309 r = ctx->heap.front;
adamc@682	1310 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1311 ctx->heap.front += len+1;
adamc@682	1312 return r;
adamc@682	1313 }
adamc@682	1314 }
adamc@682	1315
adamc@577	1316 uw_Basis_int uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1317 int len;
adamc@577	1318 size_t s_len = strlen(s);
adamc@562	1319
adamc@970	1320 uw_check_script(ctx, 18 + INTS_MAX + s_len);
adamc@970	1321 sprintf(ctx->script.front, "var s%d=sc(exec(%n", ctx->source_count, &len);
adamc@666	1322 ctx->script.front += len;
adamc@666	1323 strcpy(ctx->script.front, s);
adamc@666	1324 ctx->script.front += s_len;
adamc@970	1325 strcpy(ctx->script.front, "));");
adamc@972	1326 ctx->script.front += 3;
adamc@562	1327
adamc@565	1328 return ctx->source_count++;
adamc@117	1329 }
adamc@117	1330
adamc@577	1331 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_int n, uw_Basis_string s) {
adamc@577	1332 int len;
adamc@577	1333 size_t s_len = strlen(s);
adamc@577	1334
adamc@970	1335 uw_check_script(ctx, 12 + INTS_MAX + s_len);
adamc@970	1336 sprintf(ctx->script.front, "sv(s%d,exec(%n", (int)n, &len);
adamc@666	1337 ctx->script.front += len;
adamc@666	1338 strcpy(ctx->script.front, s);
adamc@666	1339 ctx->script.front += s_len;
adamc@970	1340 strcpy(ctx->script.front, "));");
adamc@972	1341 ctx->script.front += 3;
adamc@577	1342
adamc@577	1343 return uw_unit_v;
adamc@577	1344 }
adamc@577	1345
adamc@311	1346 static void uw_check(uw_context ctx, size_t extra) {
adamc@667	1347 buf_check(&ctx->page, extra);
adamc@117	1348 }
adamc@117	1349
adamc@311	1350 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1351 *(ctx->page.front)++ = c;
adamc@117	1352 }
adamc@117	1353
adamc@311	1354 void uw_writec(uw_context ctx, char c) {
adamc@311	1355 uw_check(ctx, 1);
adamc@311	1356 uw_writec_unsafe(ctx, c);
adamc@117	1357 }
adamc@117	1358
adamc@311	1359 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1360 int len = strlen(s);
adamc@666	1361 memcpy(ctx->page.front, s, len);
adamc@666	1362 ctx->page.front += len;
adamc@117	1363 }
adamc@117	1364
adamc@311	1365 void uw_write(uw_context ctx, const char* s) {
adamc@311	1366 uw_check(ctx, strlen(s) + 1);
adamc@311	1367 uw_write_unsafe(ctx, s);
adamc@666	1368 *ctx->page.front = 0;
adamc@102	1369 }
adamc@106	1370
adamc@311	1371 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1372 char *result;
adamc@136	1373 int len;
adamc@311	1374 uw_check_heap(ctx, INTS_MAX);
adamc@666	1375 result = ctx->heap.front;
adamc@276	1376 sprintf(result, "%lld%n", n, &len);
adamc@666	1377 ctx->heap.front += len+1;
adamc@136	1378 return result;
adamc@106	1379 }
adamc@106	1380
adamc@311	1381 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1382 char *result;
adamc@136	1383 int len;
adamc@311	1384 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1385 result = ctx->heap.front;
adamc@136	1386 sprintf(result, "%g%n", n, &len);
adamc@666	1387 ctx->heap.front += len+1;
adamc@136	1388 return result;
adamc@106	1389 }
adamc@106	1390
adamc@311	1391 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1392 int len = strlen(s);
adamc@136	1393 char result, p;
adamc@311	1394 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1395
adamc@666	1396 result = p = ctx->heap.front;
adamc@136	1397
adamc@136	1398 for (; *s; s++) {
adamc@136	1399 char c = *s;
adamc@136	1400
adamc@136	1401 if (c == '"') {
adamc@136	1402 strcpy(p, """);
adamc@136	1403 p += 6;
adamc@136	1404 } else if (c == '&') {
adamc@136	1405 strcpy(p, "&");
adamc@136	1406 p += 5;
adamc@136	1407 }
adamc@136	1408 else if (isprint(c))
adamc@136	1409 *p++ = c;
adamc@136	1410 else {
adamc@136	1411 int len2;
adamc@136	1412 sprintf(p, "&#%d;%n", c, &len2);
adamc@136	1413 p += len2;
adamc@136	1414 }
adamc@136	1415 }
adamc@136	1416
adamc@137	1417 *p++ = 0;
adamc@666	1418 ctx->heap.front = p;
adamc@136	1419 return result;
adamc@106	1420 }
adamc@106	1421
adamc@1011	1422 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1423 char result, p;
adamc@1011	1424 uw_check_heap(ctx, 7);
adamc@1011	1425
adamc@1011	1426 result = p = ctx->heap.front;
adamc@1011	1427
adamc@1011	1428 if (c == '"') {
adamc@1011	1429 strcpy(p, """);
adamc@1011	1430 p += 6;
adamc@1011	1431 } else if (c == '&') {
adamc@1011	1432 strcpy(p, "&");
adamc@1011	1433 p += 5;
adamc@1011	1434 }
adamc@1011	1435 else if (isprint(c))
adamc@1011	1436 *p++ = c;
adamc@1011	1437 else {
adamc@1011	1438 int len2;
adamc@1011	1439 sprintf(p, "&#%d;%n", c, &len2);
adamc@1011	1440 p += len2;
adamc@1011	1441 }
adamc@1011	1442
adamc@1011	1443 *p++ = 0;
adamc@1011	1444 ctx->heap.front = p;
adamc@1011	1445 return result;
adamc@1011	1446 }
adamc@1011	1447
adamc@721	1448 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1449 return s;
adamc@721	1450 }
adamc@721	1451
adamc@311	1452 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1453 int len;
adamc@117	1454
adamc@666	1455 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1456 ctx->page.front += len;
adamc@106	1457 }
adamc@106	1458
adamc@428	1459 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1460 uw_check(ctx, INTS_MAX);
adamc@311	1461 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1462
adamc@428	1463 return uw_unit_v;
adamc@106	1464 }
adamc@106	1465
adamc@428	1466 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1467 int len;
adamc@117	1468
adamc@311	1469 uw_check(ctx, FLOATS_MAX);
adamc@666	1470 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1471 ctx->page.front += len;
adamc@428	1472
adamc@428	1473 return uw_unit_v;
adamc@117	1474 }
adamc@117	1475
adamc@428	1476 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1477 uw_check(ctx, strlen(s) * 6);
adamc@117	1478
adamc@106	1479 for (; *s; s++) {
adamc@106	1480 char c = *s;
adamc@106	1481
adamc@106	1482 if (c == '"')
adamc@311	1483 uw_write_unsafe(ctx, """);
adamc@136	1484 else if (c == '&')
adamc@311	1485 uw_write_unsafe(ctx, "&");
adamc@106	1486 else if (isprint(c))
adamc@311	1487 uw_writec_unsafe(ctx, c);
adamc@106	1488 else {
adamc@311	1489 uw_write_unsafe(ctx, "&#");
adamc@311	1490 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311	1491 uw_writec_unsafe(ctx, ';');
adamc@106	1492 }
adamc@106	1493 }
adamc@428	1494
adamc@428	1495 return uw_unit_v;
adamc@106	1496 }
adamc@120	1497
adamc@1011	1498 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1499 uw_check(ctx, 6);
adamc@1011	1500
adamc@1011	1501 if (c == '"')
adamc@1011	1502 uw_write_unsafe(ctx, """);
adamc@1011	1503 else if (c == '&')
adamc@1011	1504 uw_write_unsafe(ctx, "&");
adamc@1011	1505 else if (isprint(c))
adamc@1011	1506 uw_writec_unsafe(ctx, c);
adamc@1011	1507 else {
adamc@1011	1508 uw_write_unsafe(ctx, "&#");
adamc@1011	1509 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@1011	1510 uw_writec_unsafe(ctx, ';');
adamc@1011	1511 }
adamc@1011	1512
adamc@1011	1513 return uw_unit_v;
adamc@1011	1514 }
adamc@1011	1515
adamc@120	1516
adamc@311	1517 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1518 int len;
adamc@137	1519 char *r;
adamc@137	1520
adamc@311	1521 uw_check_heap(ctx, INTS_MAX);
adamc@666	1522 r = ctx->heap.front;
adamc@276	1523 sprintf(r, "%lld%n", n, &len);
adamc@666	1524 ctx->heap.front += len+1;
adamc@137	1525 return r;
adamc@120	1526 }
adamc@120	1527
adamc@682	1528 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1529 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1530 return "";
adamc@682	1531 else {
adamc@682	1532 int len;
adamc@682	1533 char *r;
adamc@679	1534
adamc@682	1535 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1536 r = ctx->heap.front;
adamc@682	1537 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1538 ctx->heap.front += len+1;
adamc@682	1539 return r;
adamc@682	1540 }
adamc@679	1541 }
adamc@679	1542
adamc@311	1543 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1544 int len;
adamc@137	1545 char *r;
adamc@137	1546
adamc@311	1547 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1548 r = ctx->heap.front;
adamc@137	1549 sprintf(r, "%g%n", n, &len);
adamc@666	1550 ctx->heap.front += len+1;
adamc@137	1551 return r;
adamc@120	1552 }
adamc@120	1553
adamc@311	1554 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1555 char r, p;
adamc@137	1556
adamc@925	1557 if (s[0] == '\0')
adamc@925	1558 return "_";
adamc@925	1559
adamc@925	1560 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1561
adamc@925	1562 r = p = ctx->heap.front;
adamc@925	1563 if (s[0] == '_')
adamc@925	1564 *p++ = '_';
adamc@925	1565
adamc@925	1566 for (; *s; s++) {
adamc@137	1567 char c = *s;
adamc@137	1568
adamc@137	1569 if (c == ' ')
adamc@137	1570 *p++ = '+';
adamc@137	1571 else if (isalnum(c))
adamc@137	1572 *p++ = c;
adamc@137	1573 else {
adamc@137	1574 sprintf(p, "%%%02X", c);
adamc@137	1575 p += 3;
adamc@137	1576 }
adamc@137	1577 }
adamc@137	1578
adamc@137	1579 *p++ = 0;
adamc@666	1580 ctx->heap.front = p;
adamc@137	1581 return r;
adamc@120	1582 }
adamc@120	1583
adamc@311	1584 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1585 if (b == uw_Basis_False)
adamc@186	1586 return "0";
adamc@186	1587 else
adamc@186	1588 return "1";
adamc@186	1589 }
adamc@186	1590
adamc@311	1591 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1592 int len;
adamc@120	1593
adamc@666	1594 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1595 ctx->page.front += len;
adamc@120	1596 }
adamc@120	1597
adamc@428	1598 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1599 uw_check(ctx, INTS_MAX);
adamc@311	1600 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1601
adamc@428	1602 return uw_unit_v;
adamc@120	1603 }
adamc@120	1604
adamc@682	1605 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1606 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1607 int len;
adamc@682	1608
adamc@682	1609 uw_check(ctx, INTS_MAX + 1);
adamc@682	1610 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1611 ctx->page.front += len;
adamc@682	1612 }
adamc@682	1613
adamc@679	1614 return uw_unit_v;
adamc@679	1615 }
adamc@679	1616
adamc@428	1617 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1618 int len;
adamc@120	1619
adamc@311	1620 uw_check(ctx, FLOATS_MAX);
adamc@666	1621 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1622 ctx->page.front += len;
adamc@428	1623
adamc@428	1624 return uw_unit_v;
adamc@120	1625 }
adamc@120	1626
adamc@488	1627 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@488	1628 return uw_Basis_urlifyInt(ctx, t);
adamc@488	1629 }
adamc@488	1630
adamc@428	1631 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1632 if (s[0] == '\0') {
adamc@925	1633 uw_check(ctx, 1);
adamc@925	1634 uw_writec_unsafe(ctx, '_');
adamc@925	1635 return uw_unit_v;
adamc@925	1636 }
adamc@925	1637
adamc@925	1638 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1639
adamc@925	1640 if (s[0] == '_')
adamc@925	1641 uw_writec_unsafe(ctx, '_');
adamc@120	1642
adamc@120	1643 for (; *s; s++) {
adamc@120	1644 char c = *s;
adamc@120	1645
adamc@120	1646 if (c == ' ')
adamc@311	1647 uw_writec_unsafe(ctx, '+');
adamc@120	1648 else if (isalnum(c))
adamc@311	1649 uw_writec_unsafe(ctx, c);
adamc@120	1650 else {
adamc@666	1651 sprintf(ctx->page.front, "%%%02X", c);
adamc@666	1652 ctx->page.front += 3;
adamc@120	1653 }
adamc@120	1654 }
adamc@428	1655
adamc@428	1656 return uw_unit_v;
adamc@120	1657 }
adamc@120	1658
adamc@428	1659 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1660 if (b == uw_Basis_False)
adamc@311	1661 uw_writec(ctx, '0');
adamc@186	1662 else
adamc@311	1663 uw_writec(ctx, '1');
adamc@428	1664
adamc@428	1665 return uw_unit_v;
adamc@186	1666 }
adamc@186	1667
adamc@120	1668
adamc@311	1669 static char uw_unurlify_advance(char s) {
adamc@144	1670 char *new_s = strchr(s, '/');
adamc@120	1671
adamc@120	1672 if (new_s)
adamc@120	1673 *new_s++ = 0;
adamc@120	1674 else
adamc@144	1675 new_s = strchr(s, 0);
adamc@144	1676
adamc@144	1677 return new_s;
adamc@144	1678 }
adamc@144	1679
adamc@311	1680 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1681 char new_s = uw_unurlify_advance(s);
adamc@311	1682 uw_Basis_int r;
adamc@120	1683
adamc@276	1684 r = atoll(*s);
adamc@120	1685 *s = new_s;
adamc@120	1686 return r;
adamc@120	1687 }
adamc@120	1688
adamc@311	1689 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1690 char new_s = uw_unurlify_advance(s);
adamc@311	1691 uw_Basis_float r;
adamc@120	1692
adamc@120	1693 r = atof(*s);
adamc@120	1694 *s = new_s;
adamc@120	1695 return r;
adamc@120	1696 }
adamc@120	1697
adamc@488	1698 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adamc@488	1699 return uw_Basis_unurlifyInt(ctx, s);
adamc@488	1700 }
adamc@488	1701
adamc@1023	1702 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1703 char s1, s2 = s;
adamc@144	1704 int n;
adamc@136	1705
adamc@1023	1706 if (!fromClient) {
adamc@1023	1707 if (*s2 == '_')
adamc@1023	1708 ++s2;
adamc@1023	1709 else if (s2[0] == '%' && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1710 s2 += 3;
adamc@1023	1711 }
adamc@925	1712
adamc@927	1713 for (s1 = r; *s2; ++s1, ++s2) {
adamc@136	1714 char c = *s2;
adamc@136	1715
adamc@136	1716 switch (c) {
adamc@136	1717 case '+':
adamc@136	1718 *s1 = ' ';
adamc@136	1719 break;
adamc@136	1720 case '%':
adamc@169	1721 if (s2[1] == 0)
adamc@311	1722 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1723 if (s2[2] == 0)
adamc@311	1724 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1725 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@311	1726 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@136	1727 *s1 = n;
adamc@136	1728 s2 += 2;
adamc@136	1729 break;
adamc@136	1730 default:
adamc@136	1731 *s1 = c;
adamc@136	1732 }
adamc@136	1733 }
adamc@136	1734 *s1++ = 0;
adamc@144	1735 return s1;
adamc@144	1736 }
adamc@144	1737
adamc@311	1738 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	1739 char new_s = uw_unurlify_advance(s);
adamc@311	1740 uw_Basis_bool r;
adamc@186	1741
adamc@186	1742 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	1743 r = uw_Basis_False;
adamc@186	1744 else
adamc@311	1745 r = uw_Basis_True;
adamc@186	1746
adamc@186	1747 *s = new_s;
adamc@186	1748 return r;
adamc@186	1749 }
adamc@186	1750
adamc@311	1751 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	1752 char new_s = uw_unurlify_advance(s);
adamc@144	1753 char r, s1, *s2;
adamc@144	1754 int len, n;
adamc@144	1755
adamc@200	1756 len = strlen(*s);
adamc@311	1757 uw_check_heap(ctx, len + 1);
adamc@144	1758
adamc@666	1759 r = ctx->heap.front;
adamc@1023	1760 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	1761 *s = new_s;
adamc@1023	1762 return r;
adamc@1023	1763 }
adamc@1023	1764
adamc@1023	1765 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	1766 char new_s = uw_unurlify_advance(s);
adamc@1023	1767 char r, s1, *s2;
adamc@1023	1768 int len, n;
adamc@1023	1769
adamc@1023	1770 len = strlen(*s);
adamc@1023	1771 uw_check_heap(ctx, len + 1);
adamc@1023	1772
adamc@1023	1773 r = ctx->heap.front;
adamc@1023	1774 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	1775 *s = new_s;
adamc@136	1776 return r;
adamc@120	1777 }
adamc@135	1778
adamc@135	1779
adamc@311	1780 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	1781 int len;
adamc@286	1782 char *r;
adamc@286	1783
adamc@311	1784 uw_check_heap(ctx, INTS_MAX);
adamc@666	1785 r = ctx->heap.front;
adamc@286	1786 sprintf(r, "%lld%n", n, &len);
adamc@666	1787 ctx->heap.front += len+1;
adamc@286	1788 return r;
adamc@286	1789 }
adamc@286	1790
adamc@428	1791 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	1792 int len;
adamc@286	1793
adamc@311	1794 uw_check(ctx, INTS_MAX);
adamc@666	1795 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1796 ctx->page.front += len;
adamc@428	1797
adamc@428	1798 return uw_unit_v;
adamc@286	1799 }
adamc@286	1800
adamc@311	1801 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	1802 int len;
adamc@286	1803 char *r;
adamc@286	1804
adamc@311	1805 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1806 r = ctx->heap.front;
adamc@286	1807 sprintf(r, "%g%n", n, &len);
adamc@666	1808 ctx->heap.front += len+1;
adamc@286	1809 return r;
adamc@286	1810 }
adamc@286	1811
adamc@428	1812 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	1813 int len;
adamc@286	1814
adamc@311	1815 uw_check(ctx, FLOATS_MAX);
adamc@666	1816 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1817 ctx->page.front += len;
adamc@428	1818
adamc@428	1819 return uw_unit_v;
adamc@286	1820 }
adamc@286	1821
adamc@311	1822 char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1823 char r, s2;
adamc@137	1824
adamc@311	1825 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	1826
adamc@666	1827 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@137	1828 char c = *s;
adamc@137	1829
adamc@137	1830 switch (c) {
adamc@137	1831 case '<':
adamc@137	1832 strcpy(s2, "<");
adamc@137	1833 s2 += 4;
adamc@137	1834 break;
adamc@137	1835 case '&':
adamc@137	1836 strcpy(s2, "&");
adamc@137	1837 s2 += 5;
adamc@137	1838 break;
adamc@137	1839 default:
adamc@137	1840 if (isprint(c))
adamc@137	1841 *s2++ = c;
adamc@137	1842 else {
adamc@137	1843 int len2;
adamc@137	1844 sprintf(s2, "&#%d;%n", c, &len2);
adamc@137	1845 s2 += len2;
adamc@137	1846 }
adamc@137	1847 }
adamc@137	1848 }
adamc@137	1849
adamc@137	1850 *s2++ = 0;
adamc@666	1851 ctx->heap.front = s2;
adamc@137	1852 return r;
adamc@135	1853 }
adamc@135	1854
adamc@428	1855 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	1856 uw_check(ctx, strlen(s) * 6);
adamc@135	1857
adamc@135	1858 for (; *s; s++) {
adamc@135	1859 char c = *s;
adamc@135	1860
adamc@135	1861 switch (c) {
adamc@135	1862 case '<':
adamc@311	1863 uw_write_unsafe(ctx, "<");
adamc@135	1864 break;
adamc@135	1865 case '&':
adamc@311	1866 uw_write_unsafe(ctx, "&");
adamc@135	1867 break;
adamc@135	1868 default:
adamc@135	1869 if (isprint(c))
adamc@311	1870 uw_writec_unsafe(ctx, c);
adamc@135	1871 else {
adamc@311	1872 uw_write_unsafe(ctx, "&#");
adamc@311	1873 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311	1874 uw_writec_unsafe(ctx, ';');
adamc@135	1875 }
adamc@135	1876 }
adamc@135	1877 }
adamc@428	1878
adamc@428	1879 return uw_unit_v;
adamc@135	1880 }
adamc@180	1881
adamc@311	1882 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1883 if (b == uw_Basis_False)
adamc@286	1884 return "False";
adamc@286	1885 else
adamc@286	1886 return "True";
adamc@286	1887 }
adamc@286	1888
adamc@428	1889 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1890 if (b == uw_Basis_False) {
adamc@311	1891 uw_check(ctx, 6);
adamc@666	1892 strcpy(ctx->page.front, "False");
adamc@666	1893 ctx->page.front += 5;
adamc@286	1894 } else {
adamc@311	1895 uw_check(ctx, 5);
adamc@666	1896 strcpy(ctx->page.front, "True");
adamc@666	1897 ctx->page.front += 4;
adamc@286	1898 }
adamc@428	1899
adamc@428	1900 return uw_unit_v;
adamc@286	1901 }
adamc@286	1902
adamc@436	1903 #define TIME_FMT "%x %X"
adamc@438	1904 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436	1905
adamc@436	1906 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436	1907 size_t len;
adamc@436	1908 char *r;
adamc@436	1909 struct tm stm;
adamc@436	1910
adamc@436	1911 if (localtime_r(&t, &stm)) {
adamc@436	1912 uw_check_heap(ctx, TIMES_MAX);
adamc@666	1913 r = ctx->heap.front;
adamc@436	1914 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	1915 ctx->heap.front += len+1;
adamc@436	1916 return r;
adamc@436	1917 } else
adamc@436	1918 return "<i>Invalid time</i>";
adamc@436	1919 }
adamc@436	1920
adamc@436	1921 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436	1922 size_t len;
adamc@436	1923 char *r;
adamc@436	1924 struct tm stm;
adamc@436	1925
adamc@436	1926 if (localtime_r(&t, &stm)) {
adamc@436	1927 uw_check(ctx, TIMES_MAX);
adamc@666	1928 r = ctx->page.front;
adamc@436	1929 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	1930 ctx->page.front += len;
adamc@436	1931 } else {
adamc@436	1932 uw_check(ctx, 20);
adamc@666	1933 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666	1934 ctx->page.front += 19;
adamc@436	1935 }
adamc@436	1936
adamc@436	1937 return uw_unit_v;
adamc@436	1938 }
adamc@436	1939
adamc@821	1940 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	1941 if (n >= 0 && n < strlen(s))
adamc@821	1942 return s[n];
adamc@821	1943 else
adamc@821	1944 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adamc@821	1945 }
adamc@821	1946
adamc@821	1947 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	1948 if (n >= 0 && n < strlen(s))
adamc@821	1949 return &s[n];
adamc@821	1950 else
adamc@821	1951 uw_error(ctx, FATAL, "Out-of-bounds strsuffix");
adamc@821	1952 }
adamc@821	1953
adamc@828	1954 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	1955 return strlen(s);
adamc@828	1956 }
adamc@828	1957
adamc@829	1958 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	1959 return strchr(s, ch);
adamc@829	1960 }
adamc@829	1961
adamc@831	1962 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	1963 return strcspn(s, chs);
adamc@831	1964 }
adamc@831	1965
adamc@829	1966 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	1967 uw_Basis_string r = strchr(s, ch);
adamc@829	1968 if (r == NULL)
adamc@829	1969 return NULL;
adamc@829	1970 else {
adamc@829	1971 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	1972 *nr = r - s;
adamc@829	1973 return nr;
adamc@829	1974 }
adamc@829	1975 }
adamc@829	1976
adamc@311	1977 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	1978 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	1979 char *s;
adamc@180	1980
adamc@311	1981 uw_check_heap(ctx, len);
adamc@180	1982
adamc@666	1983 s = ctx->heap.front;
adamc@180	1984
adamc@180	1985 strcpy(s, s1);
adamc@180	1986 strcat(s, s2);
adamc@666	1987 ctx->heap.front += len;
adamc@180	1988
adamc@180	1989 return s;
adamc@180	1990 }
adamc@278	1991
adamc@829	1992 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	1993 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	1994
adamc@829	1995 if (start < 0)
adamc@829	1996 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	1997 if (len < 0)
adamc@829	1998 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	1999 if (start + len > full_len)
adamc@829	2000 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2001
adamc@829	2002 if (start + len == full_len)
adamc@829	2003 return &s[start];
adamc@829	2004 else {
adamc@829	2005 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2006 memcpy(r, s+start, len);
adamc@829	2007 r[len] = 0;
adamc@829	2008 return r;
adamc@829	2009 }
adamc@829	2010
adamc@829	2011 }
adamc@829	2012
adamc@1023	2013 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2014 char *r;
adamc@1023	2015
adamc@1023	2016 uw_check_heap(ctx, 2);
adamc@1023	2017 r = ctx->heap.front;
adamc@1023	2018 r[0] = ch;
adamc@1023	2019 r[1] = 0;
adamc@1023	2020
adamc@1023	2021 ctx->heap.front += 2;
adamc@1023	2022
adamc@1023	2023 return r;
adamc@1023	2024 }
adamc@1023	2025
adamc@737	2026 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2027 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2028 char *s;
adamc@278	2029
adamc@311	2030 uw_check_heap(ctx, len);
adamc@278	2031
adamc@666	2032 s = ctx->heap.front;
adamc@278	2033
adamc@278	2034 strcpy(s, s1);
adamc@666	2035 ctx->heap.front += len;
adamc@278	2036
adamc@278	2037 return s;
adamc@278	2038 }
adamc@280	2039
adamc@737	2040 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2041 if (s1)
adamc@737	2042 return uw_strdup(ctx, s1);
adamc@493	2043 else
adamc@493	2044 return NULL;
adamc@493	2045 }
adamc@493	2046
adamc@742	2047 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2048 char *r = uw_malloc(ctx, len);
adamc@742	2049 memcpy(r, p, len);
adamc@742	2050 return r;
adamc@742	2051 }
adamc@280	2052
adamc@879	2053 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2054
adamc@311	2055 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2056 int len;
adamc@281	2057 char *r;
adamc@281	2058
adamc@311	2059 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2060 r = ctx->heap.front;
adamc@879	2061 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2062 ctx->heap.front += len+1;
adamc@281	2063 return r;
adamc@281	2064 }
adamc@281	2065
adamc@467	2066 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2067 if (n == NULL)
adamc@467	2068 return "NULL";
adamc@467	2069 else
adamc@467	2070 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2071 }
adamc@467	2072
adamc@879	2073 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879	2074
adamc@311	2075 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2076 int len;
adamc@281	2077 char *r;
adamc@281	2078
adamc@311	2079 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2080 r = ctx->heap.front;
adamc@879	2081 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2082 ctx->heap.front += len+1;
adamc@281	2083 return r;
adamc@281	2084 }
adamc@281	2085
adamc@467	2086 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2087 if (n == NULL)
adamc@467	2088 return "NULL";
adamc@467	2089 else
adamc@467	2090 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2091 }
adamc@467	2092
adamc@879	2093 int uw_Estrings = 1;
adamc@879	2094 char *uw_sqlsuffixString = "::text";
adamc@1011	2095 char *uw_sqlsuffixChar = "::char";
adamc@281	2096
adamc@311	2097 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2098 char r, s2;
adamc@280	2099
adamc@879	2100 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2101
adamc@666	2102 r = s2 = ctx->heap.front;
adamc@879	2103 if (uw_Estrings)
adamc@879	2104 *s2++ = 'E';
adamc@280	2105 *s2++ = '\'';
adamc@280	2106
adamc@280	2107 for (; *s; s++) {
adamc@280	2108 char c = *s;
adamc@280	2109
adamc@280	2110 switch (c) {
adamc@280	2111 case '\'':
adamc@885	2112 if (uw_Estrings)
adamc@885	2113 strcpy(s2, "\\'");
adamc@885	2114 else
adamc@885	2115 strcpy(s2, "''");
adamc@280	2116 s2 += 2;
adamc@280	2117 break;
adamc@280	2118 case '\\':
adamc@885	2119 if (uw_Estrings) {
adamc@885	2120 strcpy(s2, "\\\\");
adamc@885	2121 s2 += 2;
adamc@885	2122 } else
adamc@885	2123 *s2++ = '\\';
adamc@280	2124 break;
adamc@280	2125 default:
adamc@280	2126 if (isprint(c))
adamc@280	2127 *s2++ = c;
adamc@879	2128 else if (uw_Estrings) {
adamc@737	2129 sprintf(s2, "\\%03o", c);
adamc@280	2130 s2 += 4;
adamc@280	2131 }
adamc@879	2132 else
adamc@879	2133 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280	2134 }
adamc@280	2135 }
adamc@280	2136
adamc@879	2137 *s2++ = '\'';
adamc@879	2138 strcpy(s2, uw_sqlsuffixString);
adamc@879	2139 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2140 return r;
adamc@280	2141 }
adamc@281	2142
adamc@1011	2143 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2144 char r, s2;
adamc@1011	2145
adamc@1011	2146 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2147
adamc@1011	2148 r = s2 = ctx->heap.front;
adamc@1011	2149 if (uw_Estrings)
adamc@1011	2150 *s2++ = 'E';
adamc@1011	2151 *s2++ = '\'';
adamc@1011	2152
adamc@1011	2153 switch (c) {
adamc@1011	2154 case '\'':
adamc@1011	2155 if (uw_Estrings)
adamc@1011	2156 strcpy(s2, "\\'");
adamc@1011	2157 else
adamc@1011	2158 strcpy(s2, "''");
adamc@1011	2159 s2 += 2;
adamc@1011	2160 break;
adamc@1011	2161 case '\\':
adamc@1011	2162 if (uw_Estrings) {
adamc@1011	2163 strcpy(s2, "\\\\");
adamc@1011	2164 s2 += 2;
adamc@1011	2165 } else
adamc@1011	2166 *s2++ = '\\';
adamc@1011	2167 break;
adamc@1011	2168 default:
adamc@1011	2169 if (isprint(c))
adamc@1011	2170 *s2++ = c;
adamc@1011	2171 else if (uw_Estrings) {
adamc@1011	2172 sprintf(s2, "\\%03o", c);
adamc@1011	2173 s2 += 4;
adamc@1011	2174 }
adamc@1011	2175 else
adamc@1011	2176 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2177 }
adamc@1011	2178
adamc@1011	2179 *s2++ = '\'';
adamc@1011	2180 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2181 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2182 return r;
adamc@1011	2183 }
adamc@1011	2184
adamc@879	2185 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2186
adamc@737	2187 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2188 char r, s2;
adamc@737	2189 size_t i;
adamc@737	2190
adamc@879	2191 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737	2192
adamc@737	2193 r = s2 = ctx->heap.front;
adamc@879	2194 if (uw_Estrings)
adamc@879	2195 *s2++ = 'E';
adamc@737	2196 *s2++ = '\'';
adamc@737	2197
adamc@737	2198 for (i = 0; i < b.size; ++i) {
adamc@737	2199 char c = b.data[i];
adamc@737	2200
adamc@737	2201 switch (c) {
adamc@737	2202 case '\'':
adamc@885	2203 if (uw_Estrings)
adamc@885	2204 strcpy(s2, "\\'");
adamc@885	2205 else
adamc@885	2206 strcpy(s2, "''");
adamc@737	2207 s2 += 2;
adamc@737	2208 break;
adamc@737	2209 case '\\':
adamc@885	2210 if (uw_Estrings) {
adamc@885	2211 strcpy(s2, "\\\\\\\\");
adamc@885	2212 s2 += 4;
adamc@885	2213 } else
adamc@885	2214 *s2++ = '\\';
adamc@737	2215 break;
adamc@737	2216 default:
adamc@737	2217 if (isprint(c))
adamc@737	2218 *s2++ = c;
adamc@879	2219 else if (uw_Estrings) {
adamc@737	2220 sprintf(s2, "\\\\%03o", c);
adamc@737	2221 s2 += 5;
adamc@737	2222 }
adamc@879	2223 else
adamc@879	2224 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737	2225 }
adamc@737	2226 }
adamc@737	2227
adamc@879	2228 *s2++ = '\'';
adamc@879	2229 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2230 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2231 return r;
adamc@737	2232 }
adamc@737	2233
adamc@682	2234 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2235 int len;
adamc@682	2236 char *r;
adamc@682	2237 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2238
adamc@682	2239 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2240 r = ctx->heap.front;
adamc@879	2241 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2242 ctx->heap.front += len+1;
adamc@682	2243 return r;
adamc@682	2244 }
adamc@682	2245
adamc@682	2246 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2247 int len;
adamc@682	2248 char *r;
adamc@682	2249 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2250
adamc@682	2251 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2252 r = ctx->heap.front;
adamc@682	2253 sprintf(r, "%lld%n", combo, &len);
adamc@682	2254 ctx->heap.front += len+1;
adamc@682	2255 return r;
adamc@682	2256 }
adamc@682	2257
adamc@879	2258 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2259
adamc@682	2260 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2261 int len;
adamc@682	2262 char *r;
adamc@682	2263
adamc@682	2264 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2265 r = ctx->heap.front;
adamc@879	2266 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2267 ctx->heap.front += len+1;
adamc@682	2268 return r;
adamc@682	2269 }
adamc@682	2270
adamc@682	2271 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2272 int len;
adamc@682	2273 char *r;
adamc@682	2274
adamc@682	2275 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2276 r = ctx->heap.front;
adamc@682	2277 sprintf(r, "%u%n", cli, &len);
adamc@682	2278 ctx->heap.front += len+1;
adamc@682	2279 return r;
adamc@682	2280 }
adamc@682	2281
adamc@467	2282 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2283 if (s == NULL)
adamc@467	2284 return "NULL";
adamc@467	2285 else
adamc@467	2286 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2287 }
adamc@467	2288
adamc@311	2289 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2290 if (b == uw_Basis_False)
adamc@281	2291 return "FALSE";
adamc@281	2292 else
adamc@281	2293 return "TRUE";
adamc@281	2294 }
adamc@282	2295
adamc@467	2296 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2297 if (b == NULL)
adamc@467	2298 return "NULL";
adamc@467	2299 else
adamc@467	2300 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2301 }
adamc@467	2302
adamc@439	2303 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2304 size_t len;
adamc@682	2305 char r, s;
adamc@682	2306 struct tm stm;
adamc@682	2307
adamc@682	2308 if (localtime_r(&t, &stm)) {
adamc@682	2309 s = uw_malloc(ctx, TIMES_MAX);
adamc@995	2310 --stm.tm_hour;
adamc@682	2311 len = strftime(s, TIMES_MAX, TIME_FMT, &stm);
adamc@682	2312 r = uw_malloc(ctx, len + 14);
adamc@682	2313 sprintf(r, "'%s'::timestamp", s);
adamc@682	2314 return r;
adamc@682	2315 } else
adamc@682	2316 return "<Invalid time>";
adamc@682	2317 }
adamc@682	2318
adamc@682	2319 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2320 size_t len;
adamc@439	2321 char *r;
adamc@439	2322 struct tm stm;
adamc@439	2323
adamc@439	2324 if (localtime_r(&t, &stm)) {
adamc@439	2325 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2326 r = ctx->heap.front;
adamc@439	2327 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2328 ctx->heap.front += len+1;
adamc@439	2329 return r;
adamc@439	2330 } else
adamc@439	2331 return "<Invalid time>";
adamc@439	2332 }
adamc@439	2333
adamc@467	2334 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2335 if (t == NULL)
adamc@467	2336 return "NULL";
adamc@467	2337 else
adamc@467	2338 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2339 }
adamc@467	2340
adamc@311	2341 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2342 static uw_Basis_int true = 1;
adamc@311	2343 static uw_Basis_int false = 0;
adamc@282	2344
adamc@311	2345 if (b == uw_Basis_False)
adamc@282	2346 return (char *)&false;
adamc@282	2347 else
adamc@282	2348 return (char *)&true;
adamc@282	2349 }
adamc@284	2350
adamc@311	2351 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2352 int len;
adamc@284	2353 char *r;
adamc@284	2354
adamc@311	2355 uw_check_heap(ctx, INTS_MAX);
adamc@666	2356 r = ctx->heap.front;
adamc@284	2357 sprintf(r, "%lld%n", n, &len);
adamc@666	2358 ctx->heap.front += len+1;
adamc@284	2359 return r;
adamc@284	2360 }
adamc@285	2361
adamc@311	2362 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2363 int len;
adamc@285	2364 char *r;
adamc@285	2365
adamc@311	2366 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2367 r = ctx->heap.front;
adamc@285	2368 sprintf(r, "%g%n", n, &len);
adamc@666	2369 ctx->heap.front += len+1;
adamc@285	2370 return r;
adamc@285	2371 }
adamc@285	2372
adamc@821	2373 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2374 char *r = uw_malloc(ctx, 2);
adamc@821	2375 r[0] = ch;
adamc@821	2376 r[1] = 0;
adamc@821	2377 return r;
adamc@821	2378 }
adamc@821	2379
adamc@311	2380 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2381 if (b == uw_Basis_False)
adamc@285	2382 return "False";
adamc@285	2383 else
adamc@285	2384 return "True";
adamc@285	2385 }
adamc@288	2386
adamc@436	2387 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436	2388 size_t len;
adamc@436	2389 char *r;
adamc@436	2390 struct tm stm;
adamc@436	2391
adamc@436	2392 if (localtime_r(&t, &stm)) {
adamc@436	2393 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2394 r = ctx->heap.front;
adamc@436	2395 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2396 ctx->heap.front += len+1;
adamc@436	2397 return r;
adamc@436	2398 } else
adamc@436	2399 return "<Invalid time>";
adamc@436	2400 }
adamc@288	2401
adamc@311	2402 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2403 char *endptr;
adamc@311	2404 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2405
adamc@288	2406 if (s != '\0' && endptr == '\0') {
adamc@311	2407 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2408 *r = n;
adamc@288	2409 return r;
adamc@288	2410 } else
adamc@288	2411 return NULL;
adamc@288	2412 }
adamc@289	2413
adamc@311	2414 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2415 char *endptr;
adamc@311	2416 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2417
adamc@289	2418 if (s != '\0' && endptr == '\0') {
adamc@311	2419 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2420 *r = n;
adamc@289	2421 return r;
adamc@289	2422 } else
adamc@289	2423 return NULL;
adamc@289	2424 }
adamc@289	2425
adamc@821	2426 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2427 if (s[0] == 0) {
adamc@821	2428 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2429 r[0] = 0;
adamc@821	2430 return r;
adamc@821	2431 } else if (s[1] != 0)
adamc@821	2432 return NULL;
adamc@821	2433 else {
adamc@821	2434 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2435 r[0] = s[0];
adamc@821	2436 return r;
adamc@821	2437 }
adamc@821	2438 }
adamc@821	2439
adamc@311	2440 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2441 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2442 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2443
adamc@289	2444 if (!strcasecmp (s, "True"))
adamc@289	2445 return &true;
adamc@289	2446 else if (!strcasecmp (s, "False"))
adamc@289	2447 return &false;
adamc@289	2448 else
adamc@289	2449 return NULL;
adamc@289	2450 }
adamc@292	2451
adamc@436	2452 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2453 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2454 struct tm stm;
adamc@436	2455
adamc@439	2456 if (dot) {
adamc@439	2457 *dot = 0;
adamc@439	2458 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2459 *dot = '.';
adamc@439	2460 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2461 *r = mktime(&stm);
adamc@439	2462 return r;
adamc@439	2463 }
adamc@439	2464 else {
adamc@439	2465 *dot = '.';
adamc@439	2466 return NULL;
adamc@439	2467 }
adamc@436	2468 }
adamc@439	2469 else {
adamc@439	2470 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2471 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2472 *r = mktime(&stm);
adamc@439	2473 return r;
adamc@439	2474 }
adamc@439	2475 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2476 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2477 *r = mktime(&stm);
adamc@439	2478 return r;
adamc@439	2479 }
adamc@439	2480 else
adamc@439	2481 return NULL;
adamc@439	2482 }
adamc@436	2483 }
adamc@436	2484
adamc@311	2485 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2486 char *endptr;
adamc@311	2487 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2488
adamc@292	2489 if (s != '\0' && endptr == '\0')
adamc@292	2490 return n;
adamc@292	2491 else
adamc@311	2492 uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292	2493 }
adamc@293	2494
adamc@682	2495 #include <errno.h>
adamc@682	2496
adamc@678	2497 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2498 unsigned long long n;
adamc@682	2499
adamc@682	2500 if (sscanf(s, "%llu", &n) < 1)
adamc@682	2501 uw_error(ctx, FATAL, "Can't parse channel: %s", s);
adamc@682	2502 else {
adamc@682	2503 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2504 return ch;
adamc@682	2505 }
adamc@682	2506 }
adamc@682	2507
adamc@682	2508 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2509 char *endptr;
adamc@682	2510 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2511
adamc@678	2512 if (s != '\0' && endptr == '\0')
adamc@678	2513 return n;
adamc@678	2514 else
adamc@682	2515 uw_error(ctx, FATAL, "Can't parse client: %s", s);
adamc@678	2516 }
adamc@678	2517
adamc@311	2518 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2519 char *endptr;
adamc@311	2520 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2521
adamc@293	2522 if (s != '\0' && endptr == '\0')
adamc@293	2523 return n;
adamc@293	2524 else
adamc@311	2525 uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293	2526 }
adamc@293	2527
adamc@821	2528 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2529 if (s[0] == 0)
adamc@821	2530 return 0;
adamc@821	2531 else if (s[1] != 0)
adamc@821	2532 uw_error(ctx, FATAL, "Can't parse char: %s", s);
adamc@821	2533 else
adamc@821	2534 return s[0];
adamc@821	2535 }
adamc@821	2536
adamc@311	2537 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2538 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2539 return uw_Basis_True;
adamc@296	2540 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2541 return uw_Basis_False;
adamc@293	2542 else
adamc@311	2543 uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293	2544 }
adamc@436	2545
adamc@436	2546 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2547 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2548 struct tm stm = {};
adamc@436	2549
adamc@438	2550 if (dot) {
adamc@438	2551 *dot = 0;
adamc@438	2552 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2553 *dot = '.';
adamc@438	2554 return mktime(&stm);
adamc@438	2555 }
adamc@438	2556 else {
adamc@438	2557 *dot = '.';
adamc@438	2558 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2559 }
adamc@438	2560 }
adamc@438	2561 else {
adamc@439	2562 if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439	2563 return mktime(&stm);
adamc@439	2564 else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438	2565 return mktime(&stm);
adamc@438	2566 else
adamc@438	2567 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2568 }
adamc@436	2569 }
adamc@457	2570
adamc@939	2571 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adamc@939	2572 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@939	2573 struct tm stm = {};
adamc@939	2574
adamc@939	2575 if (dot) {
adamc@939	2576 *dot = 0;
adamc@939	2577 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@939	2578 *dot = '.';
adamc@939	2579 return mktime(&stm);
adamc@939	2580 }
adamc@939	2581 else {
adamc@939	2582 *dot = '.';
adamc@939	2583 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2584 }
adamc@939	2585 }
adamc@939	2586 else {
adamc@939	2587 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@939	2588 return mktime(&stm);
adamc@939	2589 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@939	2590 return mktime(&stm);
adamc@939	2591 } else
adamc@939	2592 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2593 }
adamc@939	2594 }
adamc@939	2595
adamc@742	2596 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	2597 char *r = ctx->heap.front;
adamc@742	2598 uw_Basis_blob b = {len, r};
adamc@742	2599
adamc@742	2600 uw_check_heap(ctx, len);
adamc@742	2601
adamc@742	2602 while (*s) {
adamc@742	2603 if (s[0] == '\\') {
adamc@742	2604 if (s[1] == '\\') {
adamc@742	2605 *r++ = '\\';
adamc@742	2606 s += 2;
adamc@742	2607 } else if (isdigit(s[1]) && isdigit(s[2]) && isdigit(s[3])) {
adamc@742	2608 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	2609 s += 4;
adamc@742	2610 }
adamc@742	2611 else {
adamc@742	2612 *r++ = '\\';
adamc@742	2613 ++s;
adamc@742	2614 }
adamc@742	2615 } else {
adamc@742	2616 *r++ = s[0];
adamc@742	2617 ++s;
adamc@742	2618 }
adamc@742	2619 }
adamc@742	2620
adamc@742	2621 b.size = r - ctx->heap.front;
adamc@742	2622 ctx->heap.front = r;
adamc@742	2623 return b;
adamc@742	2624 }
adamc@742	2625
adamc@463	2626 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	2627 int len = strlen(c);
adamc@854	2628 char *p = ctx->outHeaders.start;
adamc@474	2629
adamc@474	2630 while (p = strstr(p, "\nSet-Cookie: ")) {
adamc@474	2631 char *p2;
adamc@474	2632 p += 13;
adamc@474	2633 p2 = strchr(p, '=');
adamc@474	2634
adamc@474	2635 if (p2) {
adamc@474	2636 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	2637
adamc@474	2638 if (!strncasecmp(p, c, p2 - p)) {
adamc@474	2639 char *ret = uw_malloc(ctx, sz + 1);
adamc@474	2640 memcpy(ret, p2+1, sz);
adamc@474	2641 ret[sz] = 0;
adamc@474	2642 return ret;
adamc@474	2643 }
adamc@474	2644 }
adamc@474	2645 }
adamc@463	2646
adamc@854	2647 if (p = uw_Basis_requestHeader(ctx, "Cookie")) {
adamc@854	2648 while (1) {
adamc@854	2649 if (!strncmp(p, c, len) && p[len] == '=')
adamc@854	2650 return p + 1 + len;
adamc@854	2651 else if (p = strchr(p, ';'))
adamc@854	2652 p += 2;
adamc@463	2653 else
adamc@463	2654 return NULL;
adamc@463	2655 }
adamc@463	2656 }
adamc@792	2657
adamc@792	2658 return NULL;
adamc@457	2659 }
adamc@462	2660
adamc@466	2661 uw_unit uw_Basis_set_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c, uw_Basis_string v) {
adamc@462	2662 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	2663 uw_write_header(ctx, c);
adamc@462	2664 uw_write_header(ctx, "=");
adamc@462	2665 uw_write_header(ctx, v);
adamc@466	2666 uw_write_header(ctx, "; path=");
adamc@466	2667 uw_write_header(ctx, prefix);
adamc@462	2668 uw_write_header(ctx, "\r\n");
adamc@462	2669
adamc@462	2670 return uw_unit_v;
adamc@462	2671 }
adamc@667	2672
adamc@682	2673 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	2674 unsigned i;
adamc@682	2675 delta *d;
adamc@671	2676
adamc@682	2677 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	2678 if (ctx->deltas[i].client == client)
adamc@682	2679 return &ctx->deltas[i];
adamc@671	2680
adamc@682	2681 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@682	2682 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adamc@682	2683 buf_init(&ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	2684 }
adamc@671	2685
adamc@682	2686 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	2687 d->client = client;
adamc@682	2688 buf_reset(&d->msgs);
adamc@682	2689 return d;
adamc@671	2690 }
adamc@671	2691
adamc@668	2692 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	2693 if (ctx->client == NULL)
adamc@682	2694 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	2695
adamc@682	2696 return new_channel(ctx->client);
adamc@668	2697 }
adamc@668	2698
adamc@668	2699 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	2700 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	2701 size_t len;
adamc@682	2702 int preLen;
adamc@682	2703 char pre[INTS_MAX + 2];
adamc@668	2704
adamc@682	2705 len = strlen(msg);
adamc@682	2706
adamc@682	2707 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	2708
adamc@682	2709 buf_append(&d->msgs, pre, preLen);
adamc@682	2710 buf_append(&d->msgs, msg, len);
adamc@682	2711 buf_append(&d->msgs, "\n", 1);
adamc@671	2712
adamc@671	2713 return uw_unit_v;
adamc@668	2714 }
adamc@671	2715
adamc@671	2716 int uw_db_commit(uw_context);
adamc@671	2717 int uw_db_rollback(uw_context);
adamc@671	2718
adamc@671	2719 void uw_commit(uw_context ctx) {
adamc@682	2720 unsigned i;
adamc@671	2721
adamc@771	2722 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2723 if (ctx->transactionals[i].rollback != NULL)
adamc@771	2724 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771	2725
adamc@771	2726 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2727 if (ctx->transactionals[i].rollback == NULL)
adamc@771	2728 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771	2729
adamc@771	2730 if (uw_db_commit(ctx))
adamc@671	2731 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@682	2732
adamc@682	2733 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	2734 delta *d = &ctx->deltas[i];
adamc@682	2735 client *c = find_client(d->client);
adamc@682	2736
adamc@682	2737 assert (c != NULL && c->mode == USED);
adamc@682	2738
adamc@685	2739 client_send(c, &d->msgs);
adamc@682	2740 }
adamc@682	2741
adamc@682	2742 if (ctx->client)
adamc@685	2743 release_client(ctx->client);
adamc@771	2744
adamc@771	2745 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2746 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@916	2747
adamc@916	2748 // Splice script data into appropriate part of page
adamc@995	2749 if (ctx->returning_blob \|\| ctx->script_header[0] == 0) {
adamc@995	2750 char *start = strstr(ctx->page.start, "<sc>");
adamc@995	2751 if (start) {
adamc@995	2752 memmove(start, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 4);
adamc@995	2753 ctx->page.front -= 4;
adamc@995	2754 }
adamc@995	2755 } else if (buf_used(&ctx->script) == 0) {
adamc@916	2756 size_t len = strlen(ctx->script_header);
adamc@916	2757 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2758 if (start) {
adamc@916	2759 buf_check(&ctx->page, buf_used(&ctx->page) - 4 + len);
adamc@917	2760 start = strstr(ctx->page.start, "<sc>");
adamc@916	2761 memmove(start + len, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2762 ctx->page.front += len - 4;
adamc@916	2763 memcpy(start, ctx->script_header, len);
adamc@916	2764 }
adamc@916	2765 } else {
adamc@916	2766 size_t lenH = strlen(ctx->script_header), len = buf_used(&ctx->script);
adamc@916	2767 size_t lenP = lenH + 40 + len;
adamc@916	2768 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2769 if (start) {
adamc@916	2770 buf_check(&ctx->page, buf_used(&ctx->page) - 4 + lenP);
adamc@917	2771 start = strstr(ctx->page.start, "<sc>");
adamc@916	2772 memmove(start + lenP, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2773 ctx->page.front += lenP - 4;
adamc@916	2774 memcpy(start, ctx->script_header, lenH);
adamc@916	2775 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916	2776 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916	2777 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916	2778 }
adamc@916	2779 }
adamc@671	2780 }
adamc@671	2781
adamc@671	2782 int uw_rollback(uw_context ctx) {
adamc@771	2783 size_t i;
adamc@885	2784 cleanup *cl;
adamc@771	2785
adamc@682	2786 if (ctx->client)
adamc@685	2787 release_client(ctx->client);
adamc@671	2788
adamc@885	2789 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@885	2790 cl->func(cl->arg);
adamc@885	2791
adamc@885	2792 ctx->cleanup_front = ctx->cleanup;
adamc@885	2793
adamc@771	2794 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2795 if (ctx->transactionals[i].rollback != NULL)
adamc@771	2796 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@771	2797
adamc@771	2798 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2799 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@771	2800
adamc@671	2801 return uw_db_rollback(ctx);
adamc@671	2802 }
adamc@683	2803
adamc@771	2804 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adamc@771	2805 uw_callback free) {
adamc@771	2806 if (commit == NULL)
adamc@771	2807 uw_error(ctx, FATAL, "uw_register_transactional: NULL commit callback");
adamc@771	2808
adamc@771	2809 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@771	2810 ctx->transactionals = realloc(ctx->transactionals, ctx->used_transactionals+1);
adamc@771	2811 ++ctx->n_transactionals;
adamc@771	2812 }
adamc@771	2813
adamc@771	2814 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	2815 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	2816 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	2817 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	2818 }
adamc@771	2819
adamc@683	2820
adamc@683	2821 // "Garbage collection"
adamc@683	2822
adamc@683	2823 void uw_expunger(uw_context ctx, uw_Basis_client cli);
adamc@683	2824
adamc@683	2825 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli) {
adamc@683	2826 int r = setjmp(ctx->jmp_buf);
adamc@683	2827
adamc@684	2828 if (r == 0) {
adamc@684	2829 if (uw_db_begin(ctx))
adamc@684	2830 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@683	2831 uw_expunger(ctx, cli);
adamc@684	2832 if (uw_db_commit(ctx))
adamc@684	2833 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@684	2834 }
adamc@683	2835
adamc@683	2836 return r;
adamc@683	2837 }
adamc@683	2838
adamc@683	2839 void uw_prune_clients(uw_context ctx) {
adamc@683	2840 client c, next, *prev = NULL;
adamc@683	2841 time_t cutoff;
adamc@683	2842
adamc@683	2843 cutoff = time(NULL) - uw_timeout;
adamc@683	2844
adamc@683	2845 pthread_mutex_lock(&clients_mutex);
adamc@683	2846
adamc@683	2847 for (c = clients_used; c; c = next) {
adamc@683	2848 next = c->next;
adamc@683	2849 pthread_mutex_lock(&c->lock);
adamc@685	2850 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	2851 failure_kind fk = UNLIMITED_RETRY;
adamc@683	2852 if (prev)
adamc@683	2853 prev->next = next;
adamc@683	2854 else
adamc@683	2855 clients_used = next;
adamc@684	2856 uw_reset(ctx);
adamc@683	2857 while (fk == UNLIMITED_RETRY) {
adamc@683	2858 fk = uw_expunge(ctx, c->id);
adamc@684	2859 if (fk == UNLIMITED_RETRY) {
adamc@684	2860 uw_db_rollback(ctx);
adamc@684	2861 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	2862 }
adamc@683	2863 }
adamc@684	2864 if (fk == SUCCESS)
adamc@684	2865 free_client(c);
adamc@684	2866 else {
adamc@684	2867 uw_db_rollback(ctx);
adamc@856	2868 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@684	2869 }
adamc@683	2870 }
adamc@683	2871 else
adamc@683	2872 prev = c;
adamc@683	2873 pthread_mutex_unlock(&c->lock);
adamc@683	2874 }
adamc@683	2875
adamc@683	2876 pthread_mutex_unlock(&clients_mutex);
adamc@683	2877 }
adamc@687	2878
adamc@687	2879 void uw_initializer(uw_context ctx);
adamc@687	2880
adamc@687	2881 failure_kind uw_initialize(uw_context ctx) {
adamc@687	2882 int r = setjmp(ctx->jmp_buf);
adamc@687	2883
adamc@687	2884 if (r == 0) {
adamc@687	2885 if (uw_db_begin(ctx))
adamc@687	2886 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@687	2887 uw_initializer(ctx);
adamc@687	2888 if (uw_db_commit(ctx))
adamc@687	2889 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	2890 }
adamc@687	2891
adamc@687	2892 return r;
adamc@687	2893 }
adamc@717	2894
adamc@770	2895 extern int uw_check_url(const char *);
adamc@770	2896 extern int uw_check_mime(const char *);
adamc@770	2897
adamc@717	2898 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@770	2899 if (uw_check_url(s))
adamc@770	2900 return s;
adamc@770	2901 else
adamc@770	2902 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	2903 }
adamc@734	2904
adamc@770	2905 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@770	2906 if (uw_check_url(s))
adamc@770	2907 return s;
adamc@770	2908 else
adamc@770	2909 return NULL;
adamc@770	2910 }
adamc@770	2911
adamc@770	2912 int mime_format(const char *s) {
adamc@770	2913 for (; *s; ++s)
adamc@770	2914 if (!isalnum(s) && s != '/' && s != '-' && s != '.')
adamc@770	2915 return 0;
adamc@770	2916
adamc@770	2917 return 1;
adamc@770	2918 }
adamc@770	2919
adamc@741	2920 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	2921 if (!mime_format(s))
adamc@770	2922 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	2923
adamc@770	2924 if (uw_check_mime(s))
adamc@770	2925 return s;
adamc@770	2926 else
adamc@770	2927 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	2928 }
adamc@770	2929
adamc@770	2930 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	2931 if (!mime_format(s))
adamc@770	2932 return NULL;
adamc@770	2933
adamc@770	2934 if (uw_check_mime(s))
adamc@770	2935 return s;
adamc@770	2936 else
adamc@770	2937 return NULL;
adamc@741	2938 }
adamc@741	2939
adamc@734	2940 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	2941 return s ? s : "";
adamc@734	2942 }
adamc@734	2943
adamc@734	2944 extern int uw_hash_blocksize;
adamc@734	2945
adamc@734	2946 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	2947 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	2948 int i;
adamc@734	2949
adamc@734	2950 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	2951 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	2952
adamc@734	2953 return r;
adamc@734	2954 }
adamc@734	2955
adamc@734	2956 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@734	2957 return uw_cookie_sig(ctx);
adamc@734	2958 }
adamc@737	2959
adamc@737	2960 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	2961 return f.name;
adamc@737	2962 }
adamc@737	2963
adamc@740	2964 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	2965 return f.type;
adamc@740	2966 }
adamc@740	2967
adamc@745	2968 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	2969 return b.size;
adamc@745	2970 }
adamc@745	2971
adamc@737	2972 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	2973 return f.data;
adamc@737	2974 }
adamc@741	2975
adamc@741	2976 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	2977 cleanup *cl;
adamc@741	2978 int len;
adamc@741	2979
adamc@921	2980 ctx->returning_blob = 1;
adamc@741	2981 buf_reset(&ctx->outHeaders);
adamc@741	2982 buf_reset(&ctx->page);
adamc@741	2983
adamc@856	2984 uw_write_header(ctx, on_success);
adamc@856	2985 uw_write_header(ctx, "Content-Type: ");
adamc@741	2986 uw_write_header(ctx, mimeType);
adamc@741	2987 uw_write_header(ctx, "\r\nContent-Length: ");
adamc@741	2988 buf_check(&ctx->outHeaders, INTS_MAX);
adamc@741	2989 sprintf(ctx->outHeaders.front, "%d%n", b.size, &len);
adamc@741	2990 ctx->outHeaders.front += len;
adamc@741	2991 uw_write_header(ctx, "\r\n");
adamc@741	2992
adamc@741	2993 buf_append(&ctx->page, b.data, b.size);
adamc@741	2994
adamc@741	2995 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	2996 cl->func(cl->arg);
adamc@741	2997
adamc@741	2998 ctx->cleanup_front = ctx->cleanup;
adamc@741	2999
adamc@741	3000 longjmp(ctx->jmp_buf, RETURN_BLOB);
adamc@741	3001 }
adamc@874	3002
adamc@874	3003 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adamc@874	3004 uw_Basis_string r = uw_malloc(ctx, strlen(s) + 1);
adamc@874	3005
adamc@874	3006 for (; *s; ++s) {
adamc@874	3007 if (s[0] == '\'') {
adamc@874	3008 *r++ = '\'';
adamc@874	3009 for (++s; *s; ++s) {
adamc@874	3010 if (s[0] == '\'') {
adamc@874	3011 *r++ = '\'';
adamc@874	3012 break;
adamc@874	3013 } else if (s[0] == '\\') {
adamc@874	3014 if (s[1] == '\\') {
adamc@874	3015 *r++ = '\\';
adamc@874	3016 *r++ = '\\';
adamc@874	3017 ++s;
adamc@874	3018 } else if (s[1] == '\'') {
adamc@874	3019 *r++ = '\\';
adamc@874	3020 *r++ = '\'';
adamc@874	3021 ++s;
adamc@874	3022 } else
adamc@874	3023 *r++ = '\'';
adamc@874	3024 } else
adamc@874	3025 *r++ = s[0];
adamc@874	3026 }
adamc@874	3027 if (*s == 0) break;
adamc@874	3028 } else if (s[0] == 'T' && s[1] == '.')
adamc@874	3029 ++s;
adamc@874	3030 else
adamc@874	3031 *r++ = s[0];
adamc@874	3032 }
adamc@874	3033
adamc@874	3034 return r;
adamc@874	3035 }
adamc@874	3036
adamc@922	3037 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3038 va_list ap;
adamc@922	3039 size_t len = 1;
adamc@922	3040 char s, r, *s2;
adamc@922	3041
adamc@922	3042 va_start(ap, ctx);
adamc@922	3043 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3044 len += strlen(s);
adamc@922	3045 va_end(ap);
adamc@922	3046
adamc@922	3047 r = uw_malloc(ctx, len);
adamc@922	3048 va_start(ap, ctx);
adamc@922	3049 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3050 while (*s)
adamc@922	3051 s2++ = s++;
adamc@922	3052 va_end(ap);
adamc@922	3053 *s2 = 0;
adamc@922	3054
adamc@922	3055 return r;
adamc@922	3056 }
adamc@1006	3057
adamc@1006	3058 uw_Basis_time uw_Basis_now(uw_context ctx) {
adamc@1006	3059 return time(NULL);
adamc@1006	3060 }

Mercurial > urweb

annotate src/c/urweb.c @ 1025:7facf72aaf0a