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

annotate src/c/urweb.c @ 1104:72670131dace

Basis.serialize; separate file for mhash; run transactional finishers in reverse order; set needs_sig properly

author	Adam Chlipala <adamc@hcoop.net>
date	Thu, 31 Dec 2009 11:41:57 -0500
parents	db52c32dbe42
children	a5c160636832

rev	line source
adamc@1094	1 #define _XOPEN_SOURCE 600
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@1094	12 #include <sys/types.h>
adamc@1094	13 #include <sys/socket.h>
adamc@102	14
adamc@667	15 #include <pthread.h>
adamc@667	16
adamc@102	17 #include "types.h"
adamc@102	18
adamc@311	19 uw_unit uw_unit_v = {};
adamc@102	20
adamc@667	21
adamc@667	22 // Socket extras
adamc@667	23
adamc@863	24 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667	25 while (len > 0) {
adamc@856	26 ssize_t n = send(sock, buf, len, 0);
adamc@856	27
adamc@856	28 if (n < 0)
adamc@856	29 return n;
adamc@856	30
adamc@856	31 buf += n;
adamc@856	32 len -= n;
adamc@856	33 }
adamc@856	34
adamc@856	35 return 0;
adamc@856	36 }
adamc@856	37
adamc@856	38 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856	39 while (len > 0) {
adamc@856	40 ssize_t n = write(fd, buf, len);
adamc@667	41
adamc@667	42 if (n < 0)
adamc@667	43 return n;
adamc@667	44
adamc@667	45 buf += n;
adamc@667	46 len -= n;
adamc@667	47 }
adamc@667	48
adamc@667	49 return 0;
adamc@667	50 }
adamc@667	51
adamc@667	52
adamc@667	53 // Buffers
adamc@667	54
adamc@667	55 typedef struct {
adamc@667	56 char start, front, *back;
adamc@667	57 } buf;
adamc@667	58
adamc@667	59 static void buf_init(buf *b, size_t s) {
adamc@667	60 b->front = b->start = malloc(s);
adamc@667	61 b->back = b->front + s;
adamc@667	62 }
adamc@667	63
adamc@667	64 static void buf_free(buf *b) {
adamc@667	65 free(b->start);
adamc@667	66 }
adamc@667	67
adamc@667	68 static void buf_reset(buf *b) {
adamc@667	69 b->front = b->start;
adamc@667	70 }
adamc@667	71
adamc@667	72 static void buf_check(buf *b, size_t extra) {
adamc@667	73 if (b->back - b->front < extra) {
adamc@667	74 size_t desired = b->front - b->start + extra, next;
adamc@667	75 char *new_heap;
adamc@667	76
adamc@667	77 next = b->back - b->start;
adamc@667	78 if (next == 0)
adamc@667	79 next = 1;
adamc@667	80 for (; next < desired; next *= 2);
adamc@667	81
adamc@667	82 new_heap = realloc(b->start, next);
adamc@667	83 b->front = new_heap + (b->front - b->start);
adamc@667	84 b->back = new_heap + next;
adamc@667	85 b->start = new_heap;
adamc@667	86 }
adamc@667	87 }
adamc@667	88
adamc@667	89 static size_t buf_used(buf *b) {
adamc@667	90 return b->front - b->start;
adamc@667	91 }
adamc@667	92
adamc@667	93 static size_t buf_avail(buf *b) {
adamc@667	94 return b->back - b->start;
adamc@667	95 }
adamc@667	96
adamc@668	97 static void buf_append(buf b, const char s, size_t len) {
adamc@672	98 buf_check(b, len+1);
adamc@668	99 memcpy(b->front, s, len);
adamc@668	100 b->front += len;
adamc@672	101 *b->front = 0;
adamc@668	102 }
adamc@667	103
adamc@668	104
adamc@672	105 // Persistent state types
adamc@667	106
adamc@667	107 typedef enum { UNUSED, USED } usage;
adamc@667	108
adamc@667	109 typedef struct client {
adamc@682	110 unsigned id;
adamc@667	111 usage mode;
adamc@682	112 int pass;
adamc@682	113 struct client *next;
adamc@689	114 pthread_mutex_t lock, pull_lock;
adamc@682	115 buf msgs;
adamc@682	116 int sock;
adamc@863	117 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	118 int (*close)(int fd);
adamc@682	119 time_t last_contact;
adamc@682	120 unsigned n_channels;
adamc@685	121 unsigned refcount;
adamc@667	122 } client;
adamc@667	123
adamc@672	124
adamc@672	125 // Persistent client state
adamc@672	126
adamc@682	127 static client *clients, clients_free, *clients_used;
adamc@682	128 static unsigned n_clients;
adamc@667	129
adamc@667	130 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@667	131
adamc@682	132 static client *new_client() {
adamc@667	133 client *c;
adamc@667	134
adamc@667	135 pthread_mutex_lock(&clients_mutex);
adamc@667	136
adamc@667	137 if (clients_free) {
adamc@667	138 c = clients_free;
adamc@682	139 clients_free = clients_free->next;
adamc@667	140 }
adamc@667	141 else {
adamc@667	142 ++n_clients;
adamc@667	143 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	144 c = malloc(sizeof(client));
adamc@667	145 c->id = n_clients-1;
adamc@682	146 pthread_mutex_init(&c->lock, NULL);
adamc@689	147 pthread_mutex_init(&c->pull_lock, NULL);
adamc@682	148 buf_init(&c->msgs, 0);
adamc@667	149 clients[n_clients-1] = c;
adamc@667	150 }
adamc@667	151
adamc@682	152 pthread_mutex_lock(&c->lock);
adamc@667	153 c->mode = USED;
adamc@682	154 c->pass = rand();
adamc@682	155 c->sock = -1;
adamc@682	156 c->last_contact = time(NULL);
adamc@682	157 buf_reset(&c->msgs);
adamc@682	158 c->n_channels = 0;
adamc@685	159 c->refcount = 0;
adamc@682	160 pthread_mutex_unlock(&c->lock);
adamc@682	161
adamc@682	162 c->next = clients_used;
adamc@682	163 clients_used = c;
adamc@667	164
adamc@667	165 pthread_mutex_unlock(&clients_mutex);
adamc@667	166
adamc@667	167 return c;
adamc@667	168 }
adamc@667	169
adamc@685	170 static void use_client(client *c) {
adamc@685	171 pthread_mutex_lock(&c->lock);
adamc@685	172 ++c->refcount;
adamc@685	173 pthread_mutex_unlock(&c->lock);
adamc@689	174 pthread_mutex_lock(&c->pull_lock);
adamc@685	175 }
adamc@685	176
adamc@685	177 static void release_client(client *c) {
adamc@689	178 pthread_mutex_unlock(&c->pull_lock);
adamc@685	179 pthread_mutex_lock(&c->lock);
adamc@685	180 --c->refcount;
adamc@685	181 pthread_mutex_unlock(&c->lock);
adamc@689	182
adamc@685	183 }
adamc@685	184
adamc@856	185 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adamc@667	186
adamc@682	187 static client *find_client(unsigned id) {
adamc@667	188 client *c;
adamc@667	189
adamc@667	190 pthread_mutex_lock(&clients_mutex);
adamc@667	191
adamc@667	192 if (id >= n_clients) {
adamc@667	193 pthread_mutex_unlock(&clients_mutex);
adamc@668	194 return NULL;
adamc@667	195 }
adamc@667	196
adamc@667	197 c = clients[id];
adamc@667	198
adamc@668	199 pthread_mutex_unlock(&clients_mutex);
adamc@668	200 return c;
adamc@668	201 }
adamc@668	202
adamc@856	203 static char *on_success = "HTTP/1.1 200 OK\r\n";
adamc@1065	204 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	205
adamc@856	206 void uw_set_on_success(char *s) {
adamc@856	207 on_success = s;
adamc@856	208 }
adamc@856	209
adamc@863	210 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	211 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	212 int (*close)(int fd),
adamc@864	213 void *logger_data, uw_logger log_error) {
adamc@682	214 client *c = find_client(id);
adamc@668	215
adamc@668	216 if (c == NULL) {
adamc@667	217 close(sock);
adamc@864	218 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	219 return;
adamc@667	220 }
adamc@667	221
adamc@682	222 pthread_mutex_lock(&c->lock);
adamc@671	223
adamc@682	224 if (c->mode != USED) {
adamc@682	225 pthread_mutex_unlock(&c->lock);
adamc@667	226 close(sock);
adamc@864	227 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	228 return;
adamc@667	229 }
adamc@667	230
adamc@682	231 if (pass != c->pass) {
adamc@682	232 pthread_mutex_unlock(&c->lock);
adamc@682	233 close(sock);
adamc@864	234 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	235 return;
adamc@667	236 }
adamc@667	237
adamc@682	238 if (c->sock != -1) {
adamc@863	239 c->close(c->sock);
adamc@682	240 c->sock = -1;
adamc@682	241 }
adamc@667	242
adamc@682	243 c->last_contact = time(NULL);
adamc@682	244
adamc@682	245 if (buf_used(&c->msgs) > 0) {
adamc@863	246 send(sock, on_success, strlen(on_success));
adamc@863	247 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863	248 send(sock, c->msgs.start, buf_used(&c->msgs));
adamc@682	249 buf_reset(&c->msgs);
adamc@667	250 close(sock);
adamc@667	251 }
adamc@863	252 else {
adamc@682	253 c->sock = sock;
adamc@863	254 c->send = send;
adamc@863	255 c->close = close;
adamc@863	256 }
adamc@667	257
adamc@682	258 pthread_mutex_unlock(&c->lock);
adamc@667	259 }
adamc@667	260
adamc@682	261 static void free_client(client *c) {
adamc@682	262 c->mode = UNUSED;
adamc@682	263 c->pass = -1;
adamc@667	264
adamc@682	265 c->next = clients_free;
adamc@682	266 clients_free = c;
adamc@667	267 }
adamc@667	268
adamc@682	269 static uw_Basis_channel new_channel(client *c) {
adamc@682	270 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	271 return ch;
adamc@668	272 }
adamc@668	273
adamc@685	274 static void client_send(client c, buf msg) {
adamc@685	275 pthread_mutex_lock(&c->lock);
adamc@671	276
adamc@682	277 if (c->sock != -1) {
adamc@863	278 c->send(c->sock, on_success, strlen(on_success));
adamc@863	279 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863	280 c->send(c->sock, msg->start, buf_used(msg));
adamc@863	281 c->close(c->sock);
adamc@682	282 c->sock = -1;
adamc@682	283 } else
adamc@682	284 buf_append(&c->msgs, msg->start, buf_used(msg));
adamc@671	285
adamc@685	286 pthread_mutex_unlock(&c->lock);
adamc@668	287 }
adamc@668	288
adamc@668	289
adamc@668	290 // Global entry points
adamc@668	291
adamc@1104	292 extern void uw_init_crypto();
adamc@1104	293
adamc@668	294 void uw_global_init() {
adamc@668	295 srand(time(NULL) ^ getpid());
adamc@668	296
adamc@668	297 clients = malloc(0);
adamc@1104	298
adamc@1104	299 uw_init_crypto();
adamc@1094	300 }
adamc@1094	301
adamc@1094	302 void uw_app_init(uw_app *app) {
adamc@1094	303 app->client_init();
adamc@668	304 }
adamc@668	305
adamc@668	306
adamc@667	307 // Single-request state
adamc@667	308
adamc@167	309 #define ERROR_BUF_LEN 1024
adamc@167	310
adamc@323	311 typedef struct regions {
adamc@323	312 struct regions *next;
adamc@323	313 } regions;
adamc@323	314
adamc@425	315 typedef struct {
adamc@425	316 void (func)(void);
adamc@425	317 void *arg;
adamc@425	318 } cleanup;
adamc@425	319
adamc@671	320 typedef struct {
adamc@682	321 unsigned client;
adamc@671	322 buf msgs;
adamc@682	323 } delta;
adamc@671	324
adamc@737	325 typedef enum {
adamc@759	326 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	327 } input_kind;
adamc@737	328
adamc@756	329 typedef struct input {
adamc@737	330 input_kind kind;
adamc@737	331 union {
adamc@737	332 char *normal;
adamc@739	333 uw_Basis_file file;
adamc@756	334 struct {
adamc@759	335 struct input fields, parent;
adamc@756	336 } subform;
adamc@759	337 struct {
adamc@759	338 struct input entries, parent;
adamc@759	339 } subforms;
adamc@759	340 struct {
adamc@759	341 struct input fields, next, *parent;
adamc@759	342 } entry;
adamc@737	343 } data;
adamc@737	344 } input;
adamc@737	345
adamc@771	346 typedef struct {
adamc@771	347 void *data;
adamc@771	348 uw_callback commit, rollback, free;
adamc@771	349 } transactional;
adamc@771	350
adamc@1061	351 typedef struct {
adamc@1061	352 char *name;
adamc@1061	353 void *data;
adamc@1061	354 void (free)(void);
adamc@1061	355 } global;
adamc@1061	356
adamc@311	357 struct uw_context {
adamc@1094	358 uw_app *app;
adamc@1094	359
adamc@854	360 char (get_header)(void , const char );
adamc@854	361 void *get_header_data;
adamc@457	362
adamc@666	363 buf outHeaders, page, heap, script;
adamc@1065	364 int returning_indirectly;
adamc@759	365 input inputs, subinputs, *cur_container;
adamc@1094	366 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	367
adamc@565	368 int source_count;
adamc@562	369
adamc@272	370 void *db;
adamc@272	371
adamc@167	372 jmp_buf jmp_buf;
adamc@167	373
adamc@323	374 regions *regions;
adamc@323	375
adamc@425	376 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	377
adamc@1094	378 const char *script_header;
adamc@643	379
adamc@736	380 int needs_push, needs_sig;
adamc@693	381
adamc@682	382 size_t n_deltas, used_deltas;
adamc@682	383 delta *deltas;
adamc@671	384
adamc@682	385 client *client;
adamc@682	386
adamc@771	387 transactional *transactionals;
adamc@771	388 size_t n_transactionals, used_transactionals;
adamc@771	389
adamc@1061	390 global *globals;
adamc@1061	391 size_t n_globals;
adamc@1061	392
adamc@1066	393 char *current_url;
adamc@1066	394
adamc@167	395 char error_message[ERROR_BUF_LEN];
adamc@117	396 };
adamc@117	397
adamc@687	398 uw_context uw_init() {
adamc@311	399 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	400
adamc@1094	401 ctx->app = NULL;
adamc@1094	402
adamc@854	403 ctx->get_header = NULL;
adamc@854	404 ctx->get_header_data = NULL;
adamc@457	405
adamc@687	406 buf_init(&ctx->outHeaders, 0);
adamc@687	407 buf_init(&ctx->page, 0);
adamc@1065	408 ctx->returning_indirectly = 0;
adamc@687	409 buf_init(&ctx->heap, 0);
adamc@698	410 buf_init(&ctx->script, 1);
adamc@667	411 ctx->script.start[0] = 0;
adamc@136	412
adamc@1094	413 ctx->inputs = malloc(0);
adamc@759	414 ctx->cur_container = NULL;
adamc@756	415 ctx->subinputs = malloc(0);
adamc@1094	416 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	417
adamc@272	418 ctx->db = NULL;
adamc@272	419
adamc@323	420 ctx->regions = NULL;
adamc@323	421
adamc@425	422 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	423
adamc@643	424 ctx->script_header = "";
adamc@693	425 ctx->needs_push = 0;
adamc@736	426 ctx->needs_sig = 0;
adamc@1104	427
adamc@167	428 ctx->error_message[0] = 0;
adamc@167	429
adamc@565	430 ctx->source_count = 0;
adamc@562	431
adamc@682	432 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	433 ctx->deltas = malloc(0);
adamc@671	434
adamc@700	435 ctx->client = NULL;
adamc@700	436
adamc@700	437 ctx->error_message[0] = 0;
adamc@700	438
adamc@771	439 ctx->transactionals = malloc(0);
adamc@771	440 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	441
adamc@1061	442 ctx->globals = malloc(0);
adamc@1061	443 ctx->n_globals = 0;
adamc@1061	444
adamc@1066	445 ctx->current_url = "";
adamc@1066	446
adamc@117	447 return ctx;
adamc@106	448 }
adamc@106	449
adamc@1094	450 void uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	451 ctx->app = app;
adamc@1094	452
adamc@1094	453 if (app->inputs_len > ctx->sz_inputs) {
adamc@1094	454 ctx->sz_inputs = app->inputs_len;
adamc@1094	455 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	456 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	457 }
adamc@1094	458 }
adamc@1094	459
adamc@311	460 void uw_set_db(uw_context ctx, void *db) {
adamc@272	461 ctx->db = db;
adamc@272	462 }
adamc@272	463
adamc@311	464 void *uw_get_db(uw_context ctx) {
adamc@272	465 return ctx->db;
adamc@272	466 }
adamc@272	467
adamc@311	468 void uw_free(uw_context ctx) {
adamc@671	469 size_t i;
adamc@671	470
adamc@666	471 buf_free(&ctx->outHeaders);
adamc@666	472 buf_free(&ctx->script);
adamc@666	473 buf_free(&ctx->page);
adamc@666	474 buf_free(&ctx->heap);
adamc@144	475 free(ctx->inputs);
adamc@756	476 free(ctx->subinputs);
adamc@425	477 free(ctx->cleanup);
adamc@771	478 free(ctx->transactionals);
adamc@671	479
adamc@682	480 for (i = 0; i < ctx->n_deltas; ++i)
adamc@671	481 buf_free(&ctx->deltas[i].msgs);
adamc@671	482
adamc@1061	483 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	484 if (ctx->globals[i].free)
adamc@1089	485 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	486
adamc@136	487 free(ctx);
adamc@136	488 }
adamc@136	489
adamc@562	490 void uw_reset_keep_error_message(uw_context ctx) {
adamc@756	491 size_t i;
adamc@756	492
adamc@666	493 buf_reset(&ctx->outHeaders);
adamc@666	494 buf_reset(&ctx->script);
adamc@667	495 ctx->script.start[0] = 0;
adamc@666	496 buf_reset(&ctx->page);
adamc@1065	497 ctx->returning_indirectly = 0;
adamc@666	498 buf_reset(&ctx->heap);
adamc@323	499 ctx->regions = NULL;
adamc@425	500 ctx->cleanup_front = ctx->cleanup;
adamc@565	501 ctx->source_count = 0;
adamc@682	502 ctx->used_deltas = 0;
adamc@682	503 ctx->client = NULL;
adamc@759	504 ctx->cur_container = NULL;
adamc@771	505 ctx->used_transactionals = 0;
adamc@167	506 }
adamc@167	507
adamc@562	508 void uw_reset_keep_request(uw_context ctx) {
adamc@562	509 uw_reset_keep_error_message(ctx);
adamc@562	510 ctx->error_message[0] = 0;
adamc@167	511 }
adamc@167	512
adamc@311	513 void uw_reset(uw_context ctx) {
adamc@311	514 uw_reset_keep_request(ctx);
adamc@1094	515 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	516 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adamc@756	517 ctx->used_subinputs = 0;
adamc@144	518 }
adamc@144	519
adamc@311	520 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	521 int r = setjmp(ctx->jmp_buf);
adamc@272	522
adamc@272	523 if (r == 0)
adamc@1094	524 ctx->app->db_init(ctx);
adamc@272	525
adamc@272	526 return r;
adamc@272	527 }
adamc@272	528
adamc@854	529 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	530 ctx->get_header = get_header;
adamc@854	531 ctx->get_header_data = get_header_data;
adamc@742	532 }
adamc@742	533
adamc@801	534 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	535 va_list ap;
adamc@801	536 va_start(ap, fmt);
adamc@801	537
adamc@801	538 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	539 }
adamc@801	540
adamc@311	541 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	542 cleanup *cl;
adamc@425	543
adamc@167	544 va_list ap;
adamc@167	545 va_start(ap, fmt);
adamc@167	546
adamc@167	547 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	548
adamc@425	549 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	550 cl->func(cl->arg);
adamc@425	551
adamc@425	552 ctx->cleanup_front = ctx->cleanup;
adamc@425	553
adamc@190	554 longjmp(ctx->jmp_buf, fk);
adamc@167	555 }
adamc@167	556
adamc@425	557 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	558 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	559 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	560 if (len == 0)
adamc@425	561 newLen = 1;
adamc@425	562 else
adamc@428	563 newLen = len * 2;
adamc@470	564 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	565 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	566 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	567 }
adamc@425	568
adamc@425	569 ctx->cleanup_front->func = func;
adamc@425	570 ctx->cleanup_front->arg = arg;
adamc@425	571 ++ctx->cleanup_front;
adamc@425	572 }
adamc@425	573
adamc@682	574 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adamc@854	575 return ctx->get_header(ctx->get_header_data, h);
adamc@682	576 }
adamc@682	577
adamc@682	578 void uw_login(uw_context ctx) {
adamc@693	579 if (ctx->needs_push) {
adamc@682	580 char id_s, pass_s;
adamc@682	581
adamc@682	582 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682	583 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682	584 unsigned id = atoi(id_s);
adamc@682	585 int pass = atoi(pass_s);
adamc@682	586 client *c = find_client(id);
adamc@682	587
adamc@682	588 if (c == NULL)
adamc@682	589 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", id_s, pass_s);
adamc@682	590 else {
adamc@685	591 use_client(c);
adamc@682	592 ctx->client = c;
adamc@682	593
adamc@682	594 if (c->mode != USED)
adamc@682	595 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682	596 if (c->pass != pass)
adamc@682	597 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682	598 }
adamc@682	599 } else {
adamc@682	600 client *c = new_client();
adamc@685	601 use_client(c);
adamc@682	602 ctx->client = c;
adamc@864	603 }
adamc@682	604 }
adamc@682	605 }
adamc@682	606
adamc@671	607 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	608 int r = setjmp(ctx->jmp_buf);
adamc@671	609
adamc@671	610 if (r == 0) {
adamc@1094	611 if (ctx->app->db_begin(ctx))
adamc@671	612 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adamc@682	613
adamc@1094	614 ctx->app->handle(ctx, path);
adamc@671	615 }
adamc@671	616
adamc@671	617 return r;
adamc@671	618 }
adamc@671	619
adamc@772	620 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	621 if (ctx->client == NULL)
adamc@682	622 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	623
adamc@682	624 return ctx->client->id;
adamc@682	625 }
adamc@682	626
adamc@425	627 void uw_pop_cleanup(uw_context ctx) {
adamc@425	628 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	629 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	630
adamc@425	631 --ctx->cleanup_front;
adamc@425	632 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	633 }
adamc@425	634
adamc@311	635 char *uw_error_message(uw_context ctx) {
adamc@167	636 return ctx->error_message;
adamc@167	637 }
adamc@167	638
adamc@759	639 static input *INP(uw_context ctx) {
adamc@759	640 if (ctx->cur_container == NULL)
adamc@759	641 return ctx->inputs;
adamc@759	642 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	643 return ctx->cur_container->data.subform.fields;
adamc@759	644 else if (ctx->cur_container->kind == ENTRY)
adamc@759	645 return ctx->cur_container->data.entry.fields;
adamc@759	646 else
adamc@760	647 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	648 }
adamc@759	649
adamc@760	650 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	651 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	652 *ptr += new_start - old_start;
adamc@760	653 }
adamc@760	654
adamc@760	655 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	656 switch (x->kind) {
adamc@759	657 case SUBFORM:
adamc@760	658 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	659 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	660 break;
adamc@759	661 case SUBFORMS:
adamc@760	662 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	663 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	664 break;
adamc@759	665 case ENTRY:
adamc@760	666 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	667 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	668 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@759	669 }
adamc@759	670 }
adamc@759	671
adamc@759	672 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	673 size_t i;
adamc@759	674 input *r;
adamc@759	675
adamc@759	676 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@759	677 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	678 size_t offset = new_subinputs - ctx->subinputs;
adamc@759	679
adamc@760	680 if (ctx->subinputs != new_subinputs) {
adamc@760	681 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	682 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	683 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	684 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	685
adamc@760	686 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	687
adamc@760	688 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	689 ctx->subinputs = new_subinputs;
adamc@760	690 }
adamc@759	691 }
adamc@759	692
adamc@759	693 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	694
adamc@759	695 for (i = 0; i < len; ++i)
adamc@759	696 ctx->subinputs[ctx->used_subinputs++].kind = UNUSED;
adamc@759	697
adamc@759	698 return r;
adamc@759	699 }
adamc@756	700
adamc@801	701 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	702 //printf("Input name %s\n", name);
adamc@1038	703
adamc@756	704 if (!strcasecmp(name, ".b")) {
adamc@1094	705 int n = ctx->app->input_num(value);
adamc@756	706 input *inps;
adamc@756	707
adamc@801	708 if (n < 0) {
adamc@801	709 uw_set_error(ctx, "Bad subform name %s", value);
adamc@801	710 return -1;
adamc@801	711 }
adamc@801	712
adamc@1094	713 if (n >= ctx->app->inputs_len) {
adamc@801	714 uw_set_error(ctx, "For subform name %s, index %d is out of range", value, n);
adamc@801	715 return -1;
adamc@801	716 }
adamc@756	717
adamc@1094	718 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	719
adamc@759	720 INP(ctx)[n].kind = SUBFORM;
adamc@759	721 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	722 INP(ctx)[n].data.subform.fields = inps;
adamc@759	723 ctx->cur_container = &INP(ctx)[n];
adamc@756	724 } else if (!strcasecmp(name, ".e")) {
adamc@756	725 input *tmp;
adamc@756	726
adamc@801	727 if (ctx->cur_container == NULL) {
adamc@801	728 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	729 return -1;
adamc@801	730 }
adamc@756	731
adamc@759	732 tmp = ctx->cur_container;
adamc@759	733 switch (tmp->kind) {
adamc@759	734 case SUBFORM:
adamc@759	735 ctx->cur_container = tmp->data.subform.parent;
adamc@759	736 tmp->data.subform.parent = NULL;
adamc@759	737 break;
adamc@759	738 case SUBFORMS:
adamc@759	739 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	740 tmp->data.subforms.parent = NULL;
adamc@759	741 break;
adamc@759	742 case ENTRY:
adamc@759	743 ctx->cur_container = tmp->data.entry.parent;
adamc@759	744 break;
adamc@759	745 default:
adamc@801	746 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	747 return -1;
adamc@759	748 }
adamc@759	749 } else if (!strcasecmp(name, ".s")) {
adamc@1094	750 int n = ctx->app->input_num(value);
adamc@759	751
adamc@801	752 if (n < 0) {
adamc@801	753 uw_set_error(ctx, "Bad subforms name %s", value);
adamc@801	754 return -1;
adamc@801	755 }
adamc@801	756
adamc@1094	757 if (n >= ctx->app->inputs_len) {
adamc@801	758 uw_set_error(ctx, "For subforms name %s, index %d is out of range", value, n);
adamc@801	759 return -1;
adamc@801	760 }
adamc@759	761
adamc@759	762 INP(ctx)[n].kind = SUBFORMS;
adamc@759	763 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	764 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	765 ctx->cur_container = &INP(ctx)[n];
adamc@759	766 } else if (!strcasecmp(name, ".i")) {
adamc@759	767 input *inps;
adamc@759	768
adamc@801	769 if (!ctx->cur_container) {
adamc@801	770 uw_set_error(ctx, "New entry without container");
adamc@801	771 return -1;
adamc@801	772 }
adamc@801	773
adamc@801	774 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	775 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	776 return -1;
adamc@801	777 }
adamc@759	778
adamc@1094	779 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	780
adamc@759	781 inps->kind = ENTRY;
adamc@759	782 inps->data.entry.parent = ctx->cur_container;
adamc@759	783 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	784 ctx->cur_container->data.subforms.entries = inps;
adamc@759	785
adamc@759	786 inps->data.entry.fields = inps+1;
adamc@759	787 ctx->cur_container = inps;
adamc@756	788 } else {
adamc@1094	789 int n = ctx->app->input_num(name);
adamc@756	790
adamc@801	791 if (n < 0) {
adamc@1038	792 if (!strcmp(name, "null"))
adamc@1038	793 return 0;
adamc@801	794 uw_set_error(ctx, "Bad input name %s", name);
adamc@801	795 return -1;
adamc@801	796 }
adamc@801	797
adamc@1094	798 if (n >= ctx->app->inputs_len) {
adamc@801	799 uw_set_error(ctx, "For input name %s, index %d is out of range", name, n);
adamc@801	800 return -1;
adamc@801	801 }
adamc@756	802
adamc@756	803 INP(ctx)[n].kind = NORMAL;
adamc@756	804 INP(ctx)[n].data.normal = value;
adamc@756	805 }
adamc@801	806
adamc@801	807 return 0;
adamc@144	808 }
adamc@144	809
adamc@311	810 char *uw_get_input(uw_context ctx, int n) {
adamc@169	811 if (n < 0)
adamc@311	812 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	813 if (n >= ctx->app->inputs_len)
adamc@311	814 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	815
adamc@756	816 switch (INP(ctx)[n].kind) {
adamc@737	817 case UNSET:
adamc@737	818 return NULL;
adamc@739	819 case FIL:
adamc@739	820 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	821 case SUBFORM:
adamc@756	822 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	823 case SUBFORMS:
adamc@759	824 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	825 case ENTRY:
adamc@759	826 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	827 case NORMAL:
adamc@756	828 return INP(ctx)[n].data.normal;
adamc@737	829 default:
adamc@737	830 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	831 }
adamc@138	832 }
adamc@138	833
adamc@311	834 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	835 if (n < 0)
adamc@311	836 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	837 if (n >= ctx->app->inputs_len)
adamc@311	838 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	839
adamc@756	840 switch (INP(ctx)[n].kind) {
adamc@737	841 case UNSET:
adamc@737	842 return "";
adamc@739	843 case FIL:
adamc@739	844 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	845 case SUBFORM:
adamc@756	846 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	847 case SUBFORMS:
adamc@759	848 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	849 case ENTRY:
adamc@759	850 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	851 case NORMAL:
adamc@756	852 return INP(ctx)[n].data.normal;
adamc@737	853 default:
adamc@737	854 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	855 }
adamc@737	856 }
adamc@737	857
adamc@801	858 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	859 int n = ctx->app->input_num(name);
adamc@737	860
adamc@801	861 if (n < 0) {
adamc@801	862 uw_set_error(ctx, "Bad file input name %s", name);
adamc@801	863 return -1;
adamc@801	864 }
adamc@801	865
adamc@1094	866 if (n >= ctx->app->inputs_len) {
adamc@801	867 uw_set_error(ctx, "For file input name %s, index %d is out of range", name, n);
adamc@801	868 return -1;
adamc@801	869 }
adamc@737	870
adamc@739	871 ctx->inputs[n].kind = FIL;
adamc@739	872 ctx->inputs[n].data.file = f;
adamc@801	873
adamc@801	874 return 0;
adamc@737	875 }
adamc@737	876
adamc@739	877 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	878
adamc@760	879 static void parents(input *inp) {
adamc@760	880 printf("Stack: %p\n", inp);
adamc@760	881 while (inp) {
adamc@760	882 switch (inp->kind) {
adamc@760	883 case NORMAL:
adamc@760	884 printf("Normal(%p)\n", inp);
adamc@760	885 break;
adamc@760	886 case FIL:
adamc@760	887 printf("File(%p)\n", inp);
adamc@760	888 break;
adamc@760	889 case SUBFORM:
adamc@760	890 printf("Subform; fields = %p\n", inp->data.subform.fields);
adamc@760	891 inp = inp->data.subform.parent;
adamc@760	892 break;
adamc@760	893 case SUBFORMS:
adamc@760	894 printf("Subforms; entries = %p\n", inp->data.subforms.entries);
adamc@760	895 inp = inp->data.subforms.parent;
adamc@760	896 break;
adamc@760	897 case ENTRY:
adamc@760	898 printf("Entry; fields = %p; next = %p\n", inp->data.entry.fields, inp->data.entry.next);
adamc@760	899 inp = inp->data.entry.parent;
adamc@760	900 break;
adamc@760	901 default:
adamc@760	902 inp = NULL;
adamc@760	903 }
adamc@760	904 }
adamc@760	905 }
adamc@760	906
adamc@739	907 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	908 if (n < 0)
adamc@737	909 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	910 if (n >= ctx->app->inputs_len)
adamc@737	911 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	912
adamc@756	913 switch (INP(ctx)[n].kind) {
adamc@737	914 case UNSET:
adamc@737	915 {
adamc@739	916 char *data = uw_malloc(ctx, 0);
adamc@740	917 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	918 return f;
adamc@737	919 }
adamc@739	920 case FIL:
adamc@756	921 return INP(ctx)[n].data.file;
adamc@737	922 case NORMAL:
adamc@737	923 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	924 case SUBFORM:
adamc@756	925 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	926 case SUBFORMS:
adamc@759	927 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	928 case ENTRY:
adamc@759	929 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	930 default:
adamc@737	931 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	932 }
adamc@190	933 }
adamc@190	934
adamc@756	935 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	936 if (n < 0)
adamc@756	937 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	938 if (n >= ctx->app->inputs_len)
adamc@756	939 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	940
adamc@756	941 switch (INP(ctx)[n].kind) {
adamc@756	942 case UNSET:
adamc@756	943 uw_error(ctx, FATAL, "Missing subform");
adamc@756	944 case FIL:
adamc@756	945 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	946 case NORMAL:
adamc@756	947 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	948 case SUBFORMS:
adamc@759	949 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	950 case ENTRY:
adamc@759	951 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	952 case SUBFORM:
adamc@759	953 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	954 ctx->cur_container = &INP(ctx)[n];
adamc@756	955 return;
adamc@756	956 default:
adamc@756	957 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	958 }
adamc@756	959 }
adamc@756	960
adamc@756	961 void uw_leave_subform(uw_context ctx) {
adamc@756	962 input *tmp;
adamc@756	963
adamc@759	964 if (ctx->cur_container == NULL)
adamc@756	965 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	966
adamc@759	967 tmp = ctx->cur_container;
adamc@759	968 ctx->cur_container = tmp->data.subform.parent;
adamc@759	969 tmp->data.subform.parent = NULL;
adamc@759	970 }
adamc@759	971
adamc@759	972 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	973 input *inps;
adamc@759	974
adamc@759	975 if (n < 0)
adamc@759	976 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	977 if (n >= ctx->app->inputs_len)
adamc@759	978 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	979
adamc@759	980 switch (INP(ctx)[n].kind) {
adamc@759	981 case UNSET:
adamc@759	982 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	983 case FIL:
adamc@759	984 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	985 case NORMAL:
adamc@759	986 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	987 case SUBFORM:
adamc@759	988 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	989 case ENTRY:
adamc@759	990 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	991 case SUBFORMS:
adamc@759	992 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	993 if (inps) {
adamc@759	994 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	995 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	996 return 1;
adamc@759	997 } else
adamc@759	998 return 0;
adamc@759	999 default:
adamc@759	1000 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1001 }
adamc@759	1002 }
adamc@759	1003
adamc@759	1004 int uw_next_entry(uw_context ctx) {
adamc@759	1005 if (ctx->cur_container == NULL)
adamc@759	1006 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1007
adamc@759	1008 switch (ctx->cur_container->kind) {
adamc@759	1009 case UNSET:
adamc@759	1010 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1011 case FIL:
adamc@759	1012 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1013 case NORMAL:
adamc@759	1014 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1015 case SUBFORM:
adamc@759	1016 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1017 case SUBFORMS:
adamc@759	1018 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1019 case ENTRY:
adamc@759	1020 if (ctx->cur_container->data.entry.next) {
adamc@759	1021 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1022 return 1;
adamc@759	1023 } else {
adamc@759	1024 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1025 return 0;
adamc@759	1026 }
adamc@759	1027 default:
adamc@759	1028 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1029 }
adamc@756	1030 }
adamc@756	1031
adamc@643	1032 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1033 ctx->script_header = s;
adamc@643	1034 }
adamc@643	1035
adamc@1094	1036 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1037 return ctx->app->url_prefix;
adamc@667	1038 }
adamc@667	1039
adamc@693	1040 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1041 ctx->needs_push = n;
adamc@693	1042 }
adamc@693	1043
adamc@736	1044 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1045 ctx->needs_sig = n;
adamc@736	1046 }
adamc@736	1047
adamc@667	1048
adamc@667	1049 static void buf_check_ctx(uw_context ctx, buf b, size_t extra, const char desc) {
adamc@666	1050 if (b->back - b->front < extra) {
adamc@666	1051 size_t desired = b->front - b->start + extra, next;
adamc@136	1052 char *new_heap;
adamc@136	1053
adamc@666	1054 next = b->back - b->start;
adamc@317	1055 if (next == 0)
adamc@317	1056 next = 1;
adamc@317	1057 for (; next < desired; next *= 2);
adamc@136	1058
adamc@666	1059 new_heap = realloc(b->start, next);
adamc@666	1060 b->front = new_heap + (b->front - b->start);
adamc@666	1061 b->back = new_heap + next;
adamc@136	1062
adamc@667	1063 if (new_heap != b->start) {
adamc@666	1064 b->start = new_heap;
adamc@666	1065 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously", desc);
adamc@136	1066 }
adamc@136	1067
adamc@666	1068 b->start = new_heap;
adamc@136	1069 }
adamc@136	1070 }
adamc@136	1071
adamc@832	1072 void uw_check_heap(uw_context ctx, size_t extra) {
adamc@667	1073 buf_check_ctx(ctx, &ctx->heap, extra, "heap chunk");
adamc@666	1074 }
adamc@666	1075
adamc@832	1076 char *uw_heap_front(uw_context ctx) {
adamc@832	1077 return ctx->heap.front;
adamc@832	1078 }
adamc@832	1079
adamc@832	1080 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1081 ctx->heap.front = fr;
adamc@832	1082 }
adamc@832	1083
adamc@311	1084 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136	1085 void *result;
adamc@136	1086
adamc@311	1087 uw_check_heap(ctx, len);
adamc@136	1088
adamc@666	1089 result = ctx->heap.front;
adamc@666	1090 ctx->heap.front += len;
adamc@136	1091 return result;
adamc@117	1092 }
adamc@117	1093
adamc@323	1094 void uw_begin_region(uw_context ctx) {
adamc@666	1095 regions r = (regions ) ctx->heap.front;
adamc@323	1096
adamc@323	1097 uw_check_heap(ctx, sizeof(regions));
adamc@323	1098
adamc@666	1099 ctx->heap.front += sizeof(regions);
adamc@323	1100
adamc@323	1101 r->next = ctx->regions;
adamc@323	1102 ctx->regions = r;
adamc@323	1103 }
adamc@323	1104
adamc@323	1105 void uw_end_region(uw_context ctx) {
adamc@323	1106 regions *r = ctx->regions;
adamc@323	1107
adamc@323	1108 if (r == NULL)
adamc@323	1109 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1110
adamc@666	1111 ctx->heap.front = (char *) r;
adamc@323	1112 ctx->regions = r->next;
adamc@323	1113 }
adamc@323	1114
adamc@324	1115 void uw_memstats(uw_context ctx) {
adamc@666	1116 printf("Headers: %d/%d\n", buf_used(&ctx->outHeaders), buf_avail(&ctx->outHeaders));
adamc@666	1117 printf("Script: %d/%d\n", buf_used(&ctx->script), buf_avail(&ctx->script));
adamc@666	1118 printf("Page: %d/%d\n", buf_used(&ctx->page), buf_avail(&ctx->page));
adamc@666	1119 printf("Heap: %d/%d\n", buf_used(&ctx->heap), buf_avail(&ctx->heap));
adamc@324	1120 }
adamc@324	1121
adamc@311	1122 int uw_send(uw_context ctx, int sock) {
adamc@666	1123 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462	1124
adamc@462	1125 if (n < 0)
adamc@462	1126 return n;
adamc@462	1127
adamc@462	1128 n = uw_really_send(sock, "\r\n", 2);
adamc@462	1129
adamc@462	1130 if (n < 0)
adamc@462	1131 return n;
adamc@462	1132
adamc@666	1133 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462	1134 }
adamc@462	1135
adamc@856	1136 int uw_print(uw_context ctx, int fd) {
adamc@856	1137 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1138
adamc@856	1139 if (n < 0)
adamc@856	1140 return n;
adamc@856	1141
adamc@856	1142 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1143
adamc@856	1144 if (n < 0)
adamc@856	1145 return n;
adamc@856	1146
adamc@856	1147 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1148 }
adamc@856	1149
adamc@860	1150 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1151 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1152
adamc@860	1153 if (n < 0)
adamc@860	1154 return n;
adamc@860	1155
adamc@860	1156 n = output(data, "\r\n", 2);
adamc@860	1157
adamc@860	1158 if (n < 0)
adamc@860	1159 return n;
adamc@860	1160
adamc@860	1161 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1162 }
adamc@860	1163
adamc@462	1164 static void uw_check_headers(uw_context ctx, size_t extra) {
adamc@667	1165 buf_check(&ctx->outHeaders, extra);
adamc@462	1166 }
adamc@462	1167
adamc@462	1168 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1169 int len = strlen(s);
adamc@462	1170
adamc@462	1171 uw_check_headers(ctx, len + 1);
adamc@666	1172 strcpy(ctx->outHeaders.front, s);
adamc@666	1173 ctx->outHeaders.front += len;
adamc@562	1174 }
adamc@562	1175
adamc@562	1176 static void uw_check_script(uw_context ctx, size_t extra) {
adamc@667	1177 buf_check(&ctx->script, extra);
adamc@562	1178 }
adamc@562	1179
adamc@562	1180 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1181 int len = strlen(s);
adamc@562	1182
adamc@562	1183 uw_check_script(ctx, len + 1);
adamc@666	1184 strcpy(ctx->script.front, s);
adamc@666	1185 ctx->script.front += len;
adamc@562	1186 }
adamc@562	1187
adamc@645	1188 const char *uw_Basis_get_script(uw_context ctx, uw_unit u) {
adamc@916	1189 return "<sc>";
adamc@565	1190 }
adamc@565	1191
adamc@695	1192 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1193 if (s[0] == 0)
adamc@695	1194 return "";
adamc@695	1195 else {
adamc@695	1196 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1197 sprintf(r, " onload='%s'", s);
adamc@695	1198 return r;
adamc@695	1199 }
adamc@695	1200 }
adamc@695	1201
adamc@1042	1202 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1203 if (ctx->script_header[0] == 0)
adamc@1042	1204 return "";
adamc@1042	1205 else {
adamc@1042	1206 char *r = uw_malloc(ctx, 22 + strlen(s));
adamc@1042	1207 sprintf(r, " onunload='unload();%s'", s);
adamc@1042	1208 return r;
adamc@1042	1209 }
adamc@1042	1210 }
adamc@1042	1211
adamc@694	1212 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1213 if (ctx->client == NULL) {
adamc@736	1214 if (ctx->needs_sig) {
adamc@1094	1215 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1216 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1217 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1218 return r;
adamc@736	1219 }
adamc@736	1220 else
adamc@736	1221 return "";
adamc@736	1222 } else {
adamc@1094	1223 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1224 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1225 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adamc@736	1226 sprintf(r, "client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adamc@682	1227 ctx->client->id,
adamc@682	1228 ctx->client->pass,
adamc@1094	1229 ctx->app->url_prefix,
adamc@1094	1230 ctx->app->timeout,
adamc@736	1231 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1232 sig,
adamc@736	1233 ctx->needs_sig ? "\";" : "");
adamc@679	1234 return r;
adamc@668	1235 }
adamc@667	1236 }
adamc@667	1237
adamc@574	1238 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1239 char r, s2;
adamc@574	1240
adamc@574	1241 uw_check_heap(ctx, strlen(s) * 4 + 2);
adamc@574	1242
adamc@666	1243 r = s2 = ctx->heap.front;
adamc@574	1244 *s2++ = '"';
adamc@574	1245
adamc@574	1246 for (; *s; s++) {
adamc@574	1247 char c = *s;
adamc@574	1248
adamc@574	1249 switch (c) {
adamc@574	1250 case '"':
adamc@574	1251 strcpy(s2, "\\\"");
adamc@574	1252 s2 += 2;
adamc@574	1253 break;
adamc@1027	1254 case '\'':
adamc@1027	1255 strcpy(s2, "\\047");
adamc@1027	1256 s2 += 4;
adamc@1027	1257 break;
adamc@574	1258 case '\\':
adamc@574	1259 strcpy(s2, "\\\\");
adamc@574	1260 s2 += 2;
adamc@574	1261 break;
adamc@574	1262 default:
adamc@574	1263 if (isprint(c))
adamc@574	1264 *s2++ = c;
adamc@574	1265 else {
adamc@574	1266 sprintf(s2, "\\%3o", c);
adamc@574	1267 s2 += 4;
adamc@574	1268 }
adamc@574	1269 }
adamc@574	1270 }
adamc@574	1271
adamc@574	1272 strcpy(s2, "\"");
adamc@910	1273 ctx->heap.front = s2 + 2;
adamc@574	1274 return r;
adamc@574	1275 }
adamc@574	1276
adamc@1025	1277 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1025	1278 char r, s2;
adamc@1025	1279
adamc@1025	1280 uw_check_heap(ctx, 6);
adamc@1025	1281
adamc@1025	1282 r = s2 = ctx->heap.front;
adamc@1025	1283 *s2++ = '"';
adamc@1025	1284
adamc@1025	1285 switch (c) {
adamc@1025	1286 case '"':
adamc@1025	1287 strcpy(s2, "\\\"");
adamc@1025	1288 s2 += 2;
adamc@1025	1289 break;
adamc@1027	1290 case '\'':
adamc@1027	1291 strcpy(s2, "\\047");
adamc@1027	1292 s2 += 4;
adamc@1027	1293 break;
adamc@1025	1294 case '\\':
adamc@1025	1295 strcpy(s2, "\\\\");
adamc@1025	1296 s2 += 2;
adamc@1025	1297 break;
adamc@1025	1298 default:
adamc@1025	1299 if (isprint(c))
adamc@1025	1300 *s2++ = c;
adamc@1025	1301 else {
adamc@1025	1302 sprintf(s2, "\\%3o", c);
adamc@1025	1303 s2 += 4;
adamc@1025	1304 }
adamc@1025	1305 }
adamc@1025	1306
adamc@1025	1307 strcpy(s2, "\"");
adamc@1025	1308 ctx->heap.front = s2 + 2;
adamc@1025	1309 return r;
adamc@1025	1310 }
adamc@1025	1311
adamc@574	1312 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1313 char r, s2;
adamc@574	1314
adamc@574	1315 uw_check_script(ctx, strlen(s) * 4 + 2);
adamc@574	1316
adamc@666	1317 r = s2 = ctx->script.front;
adamc@574	1318 *s2++ = '"';
adamc@574	1319
adamc@574	1320 for (; *s; s++) {
adamc@574	1321 char c = *s;
adamc@574	1322
adamc@574	1323 switch (c) {
adamc@577	1324 case '\'':
adamc@1027	1325 strcpy(s2, "\\");
adamc@574	1326 s2 += 2;
adamc@574	1327 break;
adamc@574	1328 case '\\':
adamc@574	1329 strcpy(s2, "\\\\");
adamc@574	1330 s2 += 2;
adamc@574	1331 break;
adamc@574	1332 default:
adamc@574	1333 if (isprint(c))
adamc@574	1334 *s2++ = c;
adamc@574	1335 else {
adamc@574	1336 sprintf(s2, "\\%3o", c);
adamc@574	1337 s2 += 4;
adamc@574	1338 }
adamc@574	1339 }
adamc@574	1340 }
adamc@574	1341
adamc@574	1342 strcpy(s2, "\"");
adamc@666	1343 ctx->script.front = s2 + 1;
adamc@574	1344 return r;
adamc@574	1345 }
adamc@574	1346
adamc@682	1347 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1348 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1349 return "null";
adamc@682	1350 else {
adamc@682	1351 int len;
adamc@682	1352 char *r;
adamc@682	1353
adamc@682	1354 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1355 r = ctx->heap.front;
adamc@682	1356 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1357 ctx->heap.front += len+1;
adamc@682	1358 return r;
adamc@682	1359 }
adamc@682	1360 }
adamc@682	1361
adamc@577	1362 uw_Basis_int uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1363 int len;
adamc@577	1364 size_t s_len = strlen(s);
adamc@562	1365
adamc@970	1366 uw_check_script(ctx, 18 + INTS_MAX + s_len);
adamc@970	1367 sprintf(ctx->script.front, "var s%d=sc(exec(%n", ctx->source_count, &len);
adamc@666	1368 ctx->script.front += len;
adamc@666	1369 strcpy(ctx->script.front, s);
adamc@666	1370 ctx->script.front += s_len;
adamc@970	1371 strcpy(ctx->script.front, "));");
adamc@972	1372 ctx->script.front += 3;
adamc@562	1373
adamc@565	1374 return ctx->source_count++;
adamc@117	1375 }
adamc@117	1376
adamc@577	1377 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_int n, uw_Basis_string s) {
adamc@577	1378 int len;
adamc@577	1379 size_t s_len = strlen(s);
adamc@577	1380
adamc@970	1381 uw_check_script(ctx, 12 + INTS_MAX + s_len);
adamc@970	1382 sprintf(ctx->script.front, "sv(s%d,exec(%n", (int)n, &len);
adamc@666	1383 ctx->script.front += len;
adamc@666	1384 strcpy(ctx->script.front, s);
adamc@666	1385 ctx->script.front += s_len;
adamc@970	1386 strcpy(ctx->script.front, "));");
adamc@972	1387 ctx->script.front += 3;
adamc@577	1388
adamc@577	1389 return uw_unit_v;
adamc@577	1390 }
adamc@577	1391
adamc@311	1392 static void uw_check(uw_context ctx, size_t extra) {
adamc@667	1393 buf_check(&ctx->page, extra);
adamc@117	1394 }
adamc@117	1395
adamc@311	1396 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1397 *(ctx->page.front)++ = c;
adamc@117	1398 }
adamc@117	1399
adamc@311	1400 void uw_writec(uw_context ctx, char c) {
adamc@311	1401 uw_check(ctx, 1);
adamc@311	1402 uw_writec_unsafe(ctx, c);
adamc@117	1403 }
adamc@117	1404
adamc@311	1405 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1406 int len = strlen(s);
adamc@666	1407 memcpy(ctx->page.front, s, len);
adamc@666	1408 ctx->page.front += len;
adamc@117	1409 }
adamc@117	1410
adamc@311	1411 void uw_write(uw_context ctx, const char* s) {
adamc@311	1412 uw_check(ctx, strlen(s) + 1);
adamc@311	1413 uw_write_unsafe(ctx, s);
adamc@666	1414 *ctx->page.front = 0;
adamc@102	1415 }
adamc@106	1416
adamc@311	1417 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1418 char *result;
adamc@136	1419 int len;
adamc@311	1420 uw_check_heap(ctx, INTS_MAX);
adamc@666	1421 result = ctx->heap.front;
adamc@276	1422 sprintf(result, "%lld%n", n, &len);
adamc@666	1423 ctx->heap.front += len+1;
adamc@136	1424 return result;
adamc@106	1425 }
adamc@106	1426
adamc@311	1427 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1428 char *result;
adamc@136	1429 int len;
adamc@311	1430 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1431 result = ctx->heap.front;
adamc@136	1432 sprintf(result, "%g%n", n, &len);
adamc@666	1433 ctx->heap.front += len+1;
adamc@136	1434 return result;
adamc@106	1435 }
adamc@106	1436
adamc@1054	1437 static int isCont(unsigned char ch) {
adamc@1054	1438 return ch / 64 == 2;
adamc@1054	1439 }
adamc@1054	1440
adamc@311	1441 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1442 int len = strlen(s);
adamc@136	1443 char result, p;
adamc@311	1444 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1445
adamc@666	1446 result = p = ctx->heap.front;
adamc@136	1447
adamc@136	1448 for (; *s; s++) {
adamc@1054	1449 unsigned char c = *s;
adamc@136	1450
adamc@136	1451 if (c == '"') {
adamc@136	1452 strcpy(p, """);
adamc@136	1453 p += 6;
adamc@136	1454 } else if (c == '&') {
adamc@136	1455 strcpy(p, "&");
adamc@136	1456 p += 5;
adamc@136	1457 }
adamc@1059	1458 else
adamc@136	1459 *p++ = c;
adamc@136	1460 }
adamc@136	1461
adamc@137	1462 *p++ = 0;
adamc@666	1463 ctx->heap.front = p;
adamc@136	1464 return result;
adamc@106	1465 }
adamc@106	1466
adamc@1011	1467 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1468 char result, p;
adamc@1011	1469 uw_check_heap(ctx, 7);
adamc@1011	1470
adamc@1011	1471 result = p = ctx->heap.front;
adamc@1011	1472
adamc@1011	1473 if (c == '"') {
adamc@1011	1474 strcpy(p, """);
adamc@1011	1475 p += 6;
adamc@1011	1476 } else if (c == '&') {
adamc@1011	1477 strcpy(p, "&");
adamc@1011	1478 p += 5;
adamc@1011	1479 }
adamc@1059	1480 else
adamc@1011	1481 *p++ = c;
adamc@1011	1482
adamc@1011	1483 *p++ = 0;
adamc@1011	1484 ctx->heap.front = p;
adamc@1011	1485 return result;
adamc@1011	1486 }
adamc@1011	1487
adamc@721	1488 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1489 return s;
adamc@721	1490 }
adamc@721	1491
adamc@311	1492 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1493 int len;
adamc@117	1494
adamc@666	1495 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1496 ctx->page.front += len;
adamc@106	1497 }
adamc@106	1498
adamc@428	1499 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1500 uw_check(ctx, INTS_MAX);
adamc@311	1501 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1502
adamc@428	1503 return uw_unit_v;
adamc@106	1504 }
adamc@106	1505
adamc@428	1506 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1507 int len;
adamc@117	1508
adamc@311	1509 uw_check(ctx, FLOATS_MAX);
adamc@666	1510 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1511 ctx->page.front += len;
adamc@428	1512
adamc@428	1513 return uw_unit_v;
adamc@117	1514 }
adamc@117	1515
adamc@428	1516 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1517 uw_check(ctx, strlen(s) * 6);
adamc@117	1518
adamc@106	1519 for (; *s; s++) {
adamc@1054	1520 unsigned char c = *s;
adamc@106	1521
adamc@106	1522 if (c == '"')
adamc@311	1523 uw_write_unsafe(ctx, """);
adamc@136	1524 else if (c == '&')
adamc@311	1525 uw_write_unsafe(ctx, "&");
adamc@1059	1526 else
adamc@311	1527 uw_writec_unsafe(ctx, c);
adamc@106	1528 }
adamc@428	1529
adamc@428	1530 return uw_unit_v;
adamc@106	1531 }
adamc@120	1532
adamc@1011	1533 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1534 uw_check(ctx, 6);
adamc@1011	1535
adamc@1011	1536 if (c == '"')
adamc@1011	1537 uw_write_unsafe(ctx, """);
adamc@1011	1538 else if (c == '&')
adamc@1011	1539 uw_write_unsafe(ctx, "&");
adamc@1059	1540 else
adamc@1011	1541 uw_writec_unsafe(ctx, c);
adamc@1011	1542
adamc@1011	1543 return uw_unit_v;
adamc@1011	1544 }
adamc@1011	1545
adamc@120	1546
adamc@311	1547 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1548 int len;
adamc@137	1549 char *r;
adamc@137	1550
adamc@311	1551 uw_check_heap(ctx, INTS_MAX);
adamc@666	1552 r = ctx->heap.front;
adamc@276	1553 sprintf(r, "%lld%n", n, &len);
adamc@666	1554 ctx->heap.front += len+1;
adamc@137	1555 return r;
adamc@120	1556 }
adamc@120	1557
adamc@682	1558 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1559 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1560 return "";
adamc@682	1561 else {
adamc@682	1562 int len;
adamc@682	1563 char *r;
adamc@679	1564
adamc@682	1565 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1566 r = ctx->heap.front;
adamc@682	1567 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1568 ctx->heap.front += len+1;
adamc@682	1569 return r;
adamc@682	1570 }
adamc@679	1571 }
adamc@679	1572
adamc@311	1573 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1574 int len;
adamc@137	1575 char *r;
adamc@137	1576
adamc@311	1577 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1578 r = ctx->heap.front;
adamc@137	1579 sprintf(r, "%g%n", n, &len);
adamc@666	1580 ctx->heap.front += len+1;
adamc@137	1581 return r;
adamc@120	1582 }
adamc@120	1583
adamc@311	1584 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1585 char r, p;
adamc@137	1586
adamc@925	1587 if (s[0] == '\0')
adamc@925	1588 return "_";
adamc@925	1589
adamc@925	1590 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1591
adamc@925	1592 r = p = ctx->heap.front;
adamc@925	1593 if (s[0] == '_')
adamc@925	1594 *p++ = '_';
adamc@925	1595
adamc@925	1596 for (; *s; s++) {
adamc@1087	1597 unsigned char c = *s;
adamc@137	1598
adamc@137	1599 if (c == ' ')
adamc@137	1600 *p++ = '+';
adamc@137	1601 else if (isalnum(c))
adamc@137	1602 *p++ = c;
adamc@137	1603 else {
adamc@137	1604 sprintf(p, "%%%02X", c);
adamc@137	1605 p += 3;
adamc@137	1606 }
adamc@137	1607 }
adamc@137	1608
adamc@137	1609 *p++ = 0;
adamc@666	1610 ctx->heap.front = p;
adamc@137	1611 return r;
adamc@120	1612 }
adamc@120	1613
adamc@311	1614 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1615 if (b == uw_Basis_False)
adamc@186	1616 return "0";
adamc@186	1617 else
adamc@186	1618 return "1";
adamc@186	1619 }
adamc@186	1620
adamc@311	1621 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1622 int len;
adamc@120	1623
adamc@666	1624 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1625 ctx->page.front += len;
adamc@120	1626 }
adamc@120	1627
adamc@428	1628 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1629 uw_check(ctx, INTS_MAX);
adamc@311	1630 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1631
adamc@428	1632 return uw_unit_v;
adamc@120	1633 }
adamc@120	1634
adamc@682	1635 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1636 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1637 int len;
adamc@682	1638
adamc@682	1639 uw_check(ctx, INTS_MAX + 1);
adamc@682	1640 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1641 ctx->page.front += len;
adamc@682	1642 }
adamc@682	1643
adamc@679	1644 return uw_unit_v;
adamc@679	1645 }
adamc@679	1646
adamc@428	1647 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1648 int len;
adamc@120	1649
adamc@311	1650 uw_check(ctx, FLOATS_MAX);
adamc@666	1651 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1652 ctx->page.front += len;
adamc@428	1653
adamc@428	1654 return uw_unit_v;
adamc@120	1655 }
adamc@120	1656
adamc@488	1657 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@488	1658 return uw_Basis_urlifyInt(ctx, t);
adamc@488	1659 }
adamc@488	1660
adamc@428	1661 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1662 if (s[0] == '\0') {
adamc@925	1663 uw_check(ctx, 1);
adamc@925	1664 uw_writec_unsafe(ctx, '_');
adamc@925	1665 return uw_unit_v;
adamc@925	1666 }
adamc@925	1667
adamc@925	1668 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1669
adamc@925	1670 if (s[0] == '_')
adamc@925	1671 uw_writec_unsafe(ctx, '_');
adamc@120	1672
adamc@120	1673 for (; *s; s++) {
adamc@1087	1674 unsigned char c = *s;
adamc@120	1675
adamc@120	1676 if (c == ' ')
adamc@311	1677 uw_writec_unsafe(ctx, '+');
adamc@120	1678 else if (isalnum(c))
adamc@311	1679 uw_writec_unsafe(ctx, c);
adamc@120	1680 else {
adamc@666	1681 sprintf(ctx->page.front, "%%%02X", c);
adamc@666	1682 ctx->page.front += 3;
adamc@120	1683 }
adamc@120	1684 }
adamc@428	1685
adamc@428	1686 return uw_unit_v;
adamc@120	1687 }
adamc@120	1688
adamc@428	1689 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1690 if (b == uw_Basis_False)
adamc@311	1691 uw_writec(ctx, '0');
adamc@186	1692 else
adamc@311	1693 uw_writec(ctx, '1');
adamc@428	1694
adamc@428	1695 return uw_unit_v;
adamc@186	1696 }
adamc@186	1697
adamc@120	1698
adamc@311	1699 static char uw_unurlify_advance(char s) {
adamc@144	1700 char *new_s = strchr(s, '/');
adamc@120	1701
adamc@120	1702 if (new_s)
adamc@120	1703 *new_s++ = 0;
adamc@120	1704 else
adamc@144	1705 new_s = strchr(s, 0);
adamc@144	1706
adamc@144	1707 return new_s;
adamc@144	1708 }
adamc@144	1709
adamc@311	1710 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1711 char new_s = uw_unurlify_advance(s);
adamc@311	1712 uw_Basis_int r;
adamc@120	1713
adamc@276	1714 r = atoll(*s);
adamc@120	1715 *s = new_s;
adamc@120	1716 return r;
adamc@120	1717 }
adamc@120	1718
adamc@311	1719 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1720 char new_s = uw_unurlify_advance(s);
adamc@311	1721 uw_Basis_float r;
adamc@120	1722
adamc@120	1723 r = atof(*s);
adamc@120	1724 *s = new_s;
adamc@120	1725 return r;
adamc@120	1726 }
adamc@120	1727
adamc@488	1728 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adamc@488	1729 return uw_Basis_unurlifyInt(ctx, s);
adamc@488	1730 }
adamc@488	1731
adamc@1023	1732 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1733 char s1, s2 = s;
adamc@144	1734 int n;
adamc@136	1735
adamc@1023	1736 if (!fromClient) {
adamc@1023	1737 if (*s2 == '_')
adamc@1023	1738 ++s2;
adamc@1023	1739 else if (s2[0] == '%' && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1740 s2 += 3;
adamc@1023	1741 }
adamc@925	1742
adamc@927	1743 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	1744 unsigned char c = *s2;
adamc@136	1745
adamc@136	1746 switch (c) {
adamc@136	1747 case '+':
adamc@136	1748 *s1 = ' ';
adamc@136	1749 break;
adamc@136	1750 case '%':
adamc@169	1751 if (s2[1] == 0)
adamc@311	1752 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1753 if (s2[2] == 0)
adamc@311	1754 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1755 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@311	1756 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@136	1757 *s1 = n;
adamc@136	1758 s2 += 2;
adamc@136	1759 break;
adamc@136	1760 default:
adamc@136	1761 *s1 = c;
adamc@136	1762 }
adamc@136	1763 }
adamc@136	1764 *s1++ = 0;
adamc@144	1765 return s1;
adamc@144	1766 }
adamc@144	1767
adamc@311	1768 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	1769 char new_s = uw_unurlify_advance(s);
adamc@311	1770 uw_Basis_bool r;
adamc@186	1771
adamc@186	1772 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	1773 r = uw_Basis_False;
adamc@186	1774 else
adamc@311	1775 r = uw_Basis_True;
adamc@186	1776
adamc@186	1777 *s = new_s;
adamc@186	1778 return r;
adamc@186	1779 }
adamc@186	1780
adamc@311	1781 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	1782 char new_s = uw_unurlify_advance(s);
adamc@144	1783 char r, s1, *s2;
adamc@144	1784 int len, n;
adamc@144	1785
adamc@200	1786 len = strlen(*s);
adamc@311	1787 uw_check_heap(ctx, len + 1);
adamc@144	1788
adamc@666	1789 r = ctx->heap.front;
adamc@1023	1790 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	1791 *s = new_s;
adamc@1023	1792 return r;
adamc@1023	1793 }
adamc@1023	1794
adamc@1023	1795 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	1796 char new_s = uw_unurlify_advance(s);
adamc@1023	1797 char r, s1, *s2;
adamc@1023	1798 int len, n;
adamc@1023	1799
adamc@1023	1800 len = strlen(*s);
adamc@1023	1801 uw_check_heap(ctx, len + 1);
adamc@1023	1802
adamc@1023	1803 r = ctx->heap.front;
adamc@1023	1804 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	1805 *s = new_s;
adamc@136	1806 return r;
adamc@120	1807 }
adamc@135	1808
adamc@135	1809
adamc@311	1810 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	1811 int len;
adamc@286	1812 char *r;
adamc@286	1813
adamc@311	1814 uw_check_heap(ctx, INTS_MAX);
adamc@666	1815 r = ctx->heap.front;
adamc@286	1816 sprintf(r, "%lld%n", n, &len);
adamc@666	1817 ctx->heap.front += len+1;
adamc@286	1818 return r;
adamc@286	1819 }
adamc@286	1820
adamc@428	1821 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	1822 int len;
adamc@286	1823
adamc@311	1824 uw_check(ctx, INTS_MAX);
adamc@666	1825 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1826 ctx->page.front += len;
adamc@428	1827
adamc@428	1828 return uw_unit_v;
adamc@286	1829 }
adamc@286	1830
adamc@311	1831 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	1832 int len;
adamc@286	1833 char *r;
adamc@286	1834
adamc@311	1835 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1836 r = ctx->heap.front;
adamc@286	1837 sprintf(r, "%g%n", n, &len);
adamc@666	1838 ctx->heap.front += len+1;
adamc@286	1839 return r;
adamc@286	1840 }
adamc@286	1841
adamc@428	1842 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	1843 int len;
adamc@286	1844
adamc@311	1845 uw_check(ctx, FLOATS_MAX);
adamc@666	1846 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1847 ctx->page.front += len;
adamc@428	1848
adamc@428	1849 return uw_unit_v;
adamc@286	1850 }
adamc@286	1851
adamc@311	1852 char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1853 char r, s2;
adamc@137	1854
adamc@311	1855 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	1856
adamc@666	1857 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	1858 unsigned char c = *s;
adamc@137	1859
adamc@137	1860 switch (c) {
adamc@137	1861 case '<':
adamc@137	1862 strcpy(s2, "<");
adamc@137	1863 s2 += 4;
adamc@137	1864 break;
adamc@137	1865 case '&':
adamc@137	1866 strcpy(s2, "&");
adamc@137	1867 s2 += 5;
adamc@137	1868 break;
adamc@137	1869 default:
adamc@1059	1870 *s2++ = c;
adamc@137	1871 }
adamc@137	1872 }
adamc@137	1873
adamc@137	1874 *s2++ = 0;
adamc@666	1875 ctx->heap.front = s2;
adamc@137	1876 return r;
adamc@135	1877 }
adamc@135	1878
adamc@428	1879 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	1880 uw_check(ctx, strlen(s) * 6);
adamc@135	1881
adamc@135	1882 for (; *s; s++) {
adamc@1054	1883 unsigned char c = *s;
adamc@135	1884
adamc@135	1885 switch (c) {
adamc@135	1886 case '<':
adamc@311	1887 uw_write_unsafe(ctx, "<");
adamc@135	1888 break;
adamc@135	1889 case '&':
adamc@311	1890 uw_write_unsafe(ctx, "&");
adamc@135	1891 break;
adamc@135	1892 default:
adamc@1059	1893 uw_writec_unsafe(ctx, c);
adamc@135	1894 }
adamc@135	1895 }
adamc@428	1896
adamc@428	1897 return uw_unit_v;
adamc@135	1898 }
adamc@180	1899
adamc@311	1900 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1901 if (b == uw_Basis_False)
adamc@286	1902 return "False";
adamc@286	1903 else
adamc@286	1904 return "True";
adamc@286	1905 }
adamc@286	1906
adamc@428	1907 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1908 if (b == uw_Basis_False) {
adamc@311	1909 uw_check(ctx, 6);
adamc@666	1910 strcpy(ctx->page.front, "False");
adamc@666	1911 ctx->page.front += 5;
adamc@286	1912 } else {
adamc@311	1913 uw_check(ctx, 5);
adamc@666	1914 strcpy(ctx->page.front, "True");
adamc@666	1915 ctx->page.front += 4;
adamc@286	1916 }
adamc@428	1917
adamc@428	1918 return uw_unit_v;
adamc@286	1919 }
adamc@286	1920
adamc@436	1921 #define TIME_FMT "%x %X"
adamc@438	1922 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436	1923
adamc@436	1924 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436	1925 size_t len;
adamc@436	1926 char *r;
adamc@436	1927 struct tm stm;
adamc@436	1928
adamc@436	1929 if (localtime_r(&t, &stm)) {
adamc@436	1930 uw_check_heap(ctx, TIMES_MAX);
adamc@666	1931 r = ctx->heap.front;
adamc@436	1932 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	1933 ctx->heap.front += len+1;
adamc@436	1934 return r;
adamc@436	1935 } else
adamc@436	1936 return "<i>Invalid time</i>";
adamc@436	1937 }
adamc@436	1938
adamc@436	1939 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436	1940 size_t len;
adamc@436	1941 char *r;
adamc@436	1942 struct tm stm;
adamc@436	1943
adamc@436	1944 if (localtime_r(&t, &stm)) {
adamc@436	1945 uw_check(ctx, TIMES_MAX);
adamc@666	1946 r = ctx->page.front;
adamc@436	1947 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	1948 ctx->page.front += len;
adamc@436	1949 } else {
adamc@436	1950 uw_check(ctx, 20);
adamc@666	1951 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666	1952 ctx->page.front += 19;
adamc@436	1953 }
adamc@436	1954
adamc@436	1955 return uw_unit_v;
adamc@436	1956 }
adamc@436	1957
adamc@821	1958 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	1959 if (n >= 0 && n < strlen(s))
adamc@821	1960 return s[n];
adamc@821	1961 else
adamc@821	1962 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adamc@821	1963 }
adamc@821	1964
adamc@821	1965 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	1966 if (n >= 0 && n < strlen(s))
adamc@821	1967 return &s[n];
adamc@821	1968 else
adamc@821	1969 uw_error(ctx, FATAL, "Out-of-bounds strsuffix");
adamc@821	1970 }
adamc@821	1971
adamc@828	1972 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	1973 return strlen(s);
adamc@828	1974 }
adamc@828	1975
adamc@829	1976 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	1977 return strchr(s, ch);
adamc@829	1978 }
adamc@829	1979
adamc@831	1980 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	1981 return strcspn(s, chs);
adamc@831	1982 }
adamc@831	1983
adamc@829	1984 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	1985 uw_Basis_string r = strchr(s, ch);
adamc@829	1986 if (r == NULL)
adamc@829	1987 return NULL;
adamc@829	1988 else {
adamc@829	1989 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	1990 *nr = r - s;
adamc@829	1991 return nr;
adamc@829	1992 }
adamc@829	1993 }
adamc@829	1994
adamc@311	1995 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	1996 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	1997 char *s;
adamc@180	1998
adamc@311	1999 uw_check_heap(ctx, len);
adamc@180	2000
adamc@666	2001 s = ctx->heap.front;
adamc@180	2002
adamc@180	2003 strcpy(s, s1);
adamc@180	2004 strcat(s, s2);
adamc@666	2005 ctx->heap.front += len;
adamc@180	2006
adamc@180	2007 return s;
adamc@180	2008 }
adamc@278	2009
adamc@829	2010 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2011 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2012
adamc@829	2013 if (start < 0)
adamc@829	2014 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2015 if (len < 0)
adamc@829	2016 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2017 if (start + len > full_len)
adamc@829	2018 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2019
adamc@829	2020 if (start + len == full_len)
adamc@829	2021 return &s[start];
adamc@829	2022 else {
adamc@829	2023 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2024 memcpy(r, s+start, len);
adamc@829	2025 r[len] = 0;
adamc@829	2026 return r;
adamc@829	2027 }
adamc@829	2028
adamc@829	2029 }
adamc@829	2030
adamc@1023	2031 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2032 char *r;
adamc@1023	2033
adamc@1023	2034 uw_check_heap(ctx, 2);
adamc@1023	2035 r = ctx->heap.front;
adamc@1023	2036 r[0] = ch;
adamc@1023	2037 r[1] = 0;
adamc@1023	2038
adamc@1023	2039 ctx->heap.front += 2;
adamc@1023	2040
adamc@1023	2041 return r;
adamc@1023	2042 }
adamc@1023	2043
adamc@737	2044 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2045 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2046 char *s;
adamc@278	2047
adamc@311	2048 uw_check_heap(ctx, len);
adamc@278	2049
adamc@666	2050 s = ctx->heap.front;
adamc@278	2051
adamc@278	2052 strcpy(s, s1);
adamc@666	2053 ctx->heap.front += len;
adamc@278	2054
adamc@278	2055 return s;
adamc@278	2056 }
adamc@280	2057
adamc@737	2058 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2059 if (s1)
adamc@737	2060 return uw_strdup(ctx, s1);
adamc@493	2061 else
adamc@493	2062 return NULL;
adamc@493	2063 }
adamc@493	2064
adamc@742	2065 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2066 char *r = uw_malloc(ctx, len);
adamc@742	2067 memcpy(r, p, len);
adamc@742	2068 return r;
adamc@742	2069 }
adamc@280	2070
adamc@879	2071 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2072
adamc@311	2073 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2074 int len;
adamc@281	2075 char *r;
adamc@281	2076
adamc@311	2077 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2078 r = ctx->heap.front;
adamc@879	2079 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2080 ctx->heap.front += len+1;
adamc@281	2081 return r;
adamc@281	2082 }
adamc@281	2083
adamc@467	2084 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2085 if (n == NULL)
adamc@467	2086 return "NULL";
adamc@467	2087 else
adamc@467	2088 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2089 }
adamc@467	2090
adamc@879	2091 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879	2092
adamc@311	2093 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2094 int len;
adamc@281	2095 char *r;
adamc@281	2096
adamc@311	2097 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2098 r = ctx->heap.front;
adamc@879	2099 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2100 ctx->heap.front += len+1;
adamc@281	2101 return r;
adamc@281	2102 }
adamc@281	2103
adamc@467	2104 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2105 if (n == NULL)
adamc@467	2106 return "NULL";
adamc@467	2107 else
adamc@467	2108 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2109 }
adamc@467	2110
adamc@879	2111 int uw_Estrings = 1;
adamc@879	2112 char *uw_sqlsuffixString = "::text";
adamc@1011	2113 char *uw_sqlsuffixChar = "::char";
adamc@281	2114
adamc@311	2115 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2116 char r, s2;
adamc@280	2117
adamc@879	2118 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2119
adamc@666	2120 r = s2 = ctx->heap.front;
adamc@879	2121 if (uw_Estrings)
adamc@879	2122 *s2++ = 'E';
adamc@280	2123 *s2++ = '\'';
adamc@280	2124
adamc@280	2125 for (; *s; s++) {
adamc@280	2126 char c = *s;
adamc@280	2127
adamc@280	2128 switch (c) {
adamc@280	2129 case '\'':
adamc@885	2130 if (uw_Estrings)
adamc@885	2131 strcpy(s2, "\\'");
adamc@885	2132 else
adamc@885	2133 strcpy(s2, "''");
adamc@280	2134 s2 += 2;
adamc@280	2135 break;
adamc@280	2136 case '\\':
adamc@885	2137 if (uw_Estrings) {
adamc@885	2138 strcpy(s2, "\\\\");
adamc@885	2139 s2 += 2;
adamc@885	2140 } else
adamc@885	2141 *s2++ = '\\';
adamc@280	2142 break;
adamc@280	2143 default:
adamc@280	2144 if (isprint(c))
adamc@280	2145 *s2++ = c;
adamc@879	2146 else if (uw_Estrings) {
adamc@737	2147 sprintf(s2, "\\%03o", c);
adamc@280	2148 s2 += 4;
adamc@280	2149 }
adamc@879	2150 else
adamc@879	2151 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280	2152 }
adamc@280	2153 }
adamc@280	2154
adamc@879	2155 *s2++ = '\'';
adamc@879	2156 strcpy(s2, uw_sqlsuffixString);
adamc@879	2157 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2158 return r;
adamc@280	2159 }
adamc@281	2160
adamc@1011	2161 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2162 char r, s2;
adamc@1011	2163
adamc@1011	2164 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2165
adamc@1011	2166 r = s2 = ctx->heap.front;
adamc@1011	2167 if (uw_Estrings)
adamc@1011	2168 *s2++ = 'E';
adamc@1011	2169 *s2++ = '\'';
adamc@1011	2170
adamc@1011	2171 switch (c) {
adamc@1011	2172 case '\'':
adamc@1011	2173 if (uw_Estrings)
adamc@1011	2174 strcpy(s2, "\\'");
adamc@1011	2175 else
adamc@1011	2176 strcpy(s2, "''");
adamc@1011	2177 s2 += 2;
adamc@1011	2178 break;
adamc@1011	2179 case '\\':
adamc@1011	2180 if (uw_Estrings) {
adamc@1011	2181 strcpy(s2, "\\\\");
adamc@1011	2182 s2 += 2;
adamc@1011	2183 } else
adamc@1011	2184 *s2++ = '\\';
adamc@1011	2185 break;
adamc@1011	2186 default:
adamc@1011	2187 if (isprint(c))
adamc@1011	2188 *s2++ = c;
adamc@1011	2189 else if (uw_Estrings) {
adamc@1011	2190 sprintf(s2, "\\%03o", c);
adamc@1011	2191 s2 += 4;
adamc@1011	2192 }
adamc@1011	2193 else
adamc@1011	2194 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2195 }
adamc@1011	2196
adamc@1011	2197 *s2++ = '\'';
adamc@1011	2198 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2199 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2200 return r;
adamc@1011	2201 }
adamc@1011	2202
adamc@879	2203 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2204
adamc@737	2205 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2206 char r, s2;
adamc@737	2207 size_t i;
adamc@737	2208
adamc@879	2209 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737	2210
adamc@737	2211 r = s2 = ctx->heap.front;
adamc@879	2212 if (uw_Estrings)
adamc@879	2213 *s2++ = 'E';
adamc@737	2214 *s2++ = '\'';
adamc@737	2215
adamc@737	2216 for (i = 0; i < b.size; ++i) {
adamc@737	2217 char c = b.data[i];
adamc@737	2218
adamc@737	2219 switch (c) {
adamc@737	2220 case '\'':
adamc@885	2221 if (uw_Estrings)
adamc@885	2222 strcpy(s2, "\\'");
adamc@885	2223 else
adamc@885	2224 strcpy(s2, "''");
adamc@737	2225 s2 += 2;
adamc@737	2226 break;
adamc@737	2227 case '\\':
adamc@885	2228 if (uw_Estrings) {
adamc@885	2229 strcpy(s2, "\\\\\\\\");
adamc@885	2230 s2 += 4;
adamc@885	2231 } else
adamc@885	2232 *s2++ = '\\';
adamc@737	2233 break;
adamc@737	2234 default:
adamc@737	2235 if (isprint(c))
adamc@737	2236 *s2++ = c;
adamc@879	2237 else if (uw_Estrings) {
adamc@737	2238 sprintf(s2, "\\\\%03o", c);
adamc@737	2239 s2 += 5;
adamc@737	2240 }
adamc@879	2241 else
adamc@879	2242 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737	2243 }
adamc@737	2244 }
adamc@737	2245
adamc@879	2246 *s2++ = '\'';
adamc@879	2247 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2248 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2249 return r;
adamc@737	2250 }
adamc@737	2251
adamc@682	2252 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2253 int len;
adamc@682	2254 char *r;
adamc@682	2255 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2256
adamc@682	2257 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2258 r = ctx->heap.front;
adamc@879	2259 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2260 ctx->heap.front += len+1;
adamc@682	2261 return r;
adamc@682	2262 }
adamc@682	2263
adamc@682	2264 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2265 int len;
adamc@682	2266 char *r;
adamc@682	2267 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2268
adamc@682	2269 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2270 r = ctx->heap.front;
adamc@682	2271 sprintf(r, "%lld%n", combo, &len);
adamc@682	2272 ctx->heap.front += len+1;
adamc@682	2273 return r;
adamc@682	2274 }
adamc@682	2275
adamc@879	2276 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2277
adamc@682	2278 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2279 int len;
adamc@682	2280 char *r;
adamc@682	2281
adamc@682	2282 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2283 r = ctx->heap.front;
adamc@879	2284 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2285 ctx->heap.front += len+1;
adamc@682	2286 return r;
adamc@682	2287 }
adamc@682	2288
adamc@682	2289 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2290 int len;
adamc@682	2291 char *r;
adamc@682	2292
adamc@682	2293 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2294 r = ctx->heap.front;
adamc@682	2295 sprintf(r, "%u%n", cli, &len);
adamc@682	2296 ctx->heap.front += len+1;
adamc@682	2297 return r;
adamc@682	2298 }
adamc@682	2299
adamc@467	2300 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2301 if (s == NULL)
adamc@467	2302 return "NULL";
adamc@467	2303 else
adamc@467	2304 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2305 }
adamc@467	2306
adamc@311	2307 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2308 if (b == uw_Basis_False)
adamc@281	2309 return "FALSE";
adamc@281	2310 else
adamc@281	2311 return "TRUE";
adamc@281	2312 }
adamc@282	2313
adamc@467	2314 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2315 if (b == NULL)
adamc@467	2316 return "NULL";
adamc@467	2317 else
adamc@467	2318 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2319 }
adamc@467	2320
adamc@439	2321 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2322 size_t len;
adamc@682	2323 char r, s;
adamc@682	2324 struct tm stm;
adamc@682	2325
adamc@682	2326 if (localtime_r(&t, &stm)) {
adamc@682	2327 s = uw_malloc(ctx, TIMES_MAX);
adamc@995	2328 --stm.tm_hour;
adamc@682	2329 len = strftime(s, TIMES_MAX, TIME_FMT, &stm);
adamc@682	2330 r = uw_malloc(ctx, len + 14);
adamc@682	2331 sprintf(r, "'%s'::timestamp", s);
adamc@682	2332 return r;
adamc@682	2333 } else
adamc@682	2334 return "<Invalid time>";
adamc@682	2335 }
adamc@682	2336
adamc@682	2337 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2338 size_t len;
adamc@439	2339 char *r;
adamc@439	2340 struct tm stm;
adamc@439	2341
adamc@439	2342 if (localtime_r(&t, &stm)) {
adamc@439	2343 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2344 r = ctx->heap.front;
adamc@439	2345 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2346 ctx->heap.front += len+1;
adamc@439	2347 return r;
adamc@439	2348 } else
adamc@439	2349 return "<Invalid time>";
adamc@439	2350 }
adamc@439	2351
adamc@467	2352 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2353 if (t == NULL)
adamc@467	2354 return "NULL";
adamc@467	2355 else
adamc@467	2356 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2357 }
adamc@467	2358
adamc@311	2359 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2360 static uw_Basis_int true = 1;
adamc@311	2361 static uw_Basis_int false = 0;
adamc@282	2362
adamc@311	2363 if (b == uw_Basis_False)
adamc@282	2364 return (char *)&false;
adamc@282	2365 else
adamc@282	2366 return (char *)&true;
adamc@282	2367 }
adamc@284	2368
adamc@311	2369 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2370 int len;
adamc@284	2371 char *r;
adamc@284	2372
adamc@311	2373 uw_check_heap(ctx, INTS_MAX);
adamc@666	2374 r = ctx->heap.front;
adamc@284	2375 sprintf(r, "%lld%n", n, &len);
adamc@666	2376 ctx->heap.front += len+1;
adamc@284	2377 return r;
adamc@284	2378 }
adamc@285	2379
adamc@311	2380 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2381 int len;
adamc@285	2382 char *r;
adamc@285	2383
adamc@311	2384 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2385 r = ctx->heap.front;
adamc@285	2386 sprintf(r, "%g%n", n, &len);
adamc@666	2387 ctx->heap.front += len+1;
adamc@285	2388 return r;
adamc@285	2389 }
adamc@285	2390
adamc@821	2391 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2392 char *r = uw_malloc(ctx, 2);
adamc@821	2393 r[0] = ch;
adamc@821	2394 r[1] = 0;
adamc@821	2395 return r;
adamc@821	2396 }
adamc@821	2397
adamc@311	2398 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2399 if (b == uw_Basis_False)
adamc@285	2400 return "False";
adamc@285	2401 else
adamc@285	2402 return "True";
adamc@285	2403 }
adamc@288	2404
adamc@436	2405 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436	2406 size_t len;
adamc@436	2407 char *r;
adamc@436	2408 struct tm stm;
adamc@436	2409
adamc@436	2410 if (localtime_r(&t, &stm)) {
adamc@436	2411 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2412 r = ctx->heap.front;
adamc@436	2413 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2414 ctx->heap.front += len+1;
adamc@436	2415 return r;
adamc@436	2416 } else
adamc@436	2417 return "<Invalid time>";
adamc@436	2418 }
adamc@288	2419
adamc@311	2420 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2421 char *endptr;
adamc@311	2422 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2423
adamc@288	2424 if (s != '\0' && endptr == '\0') {
adamc@311	2425 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2426 *r = n;
adamc@288	2427 return r;
adamc@288	2428 } else
adamc@288	2429 return NULL;
adamc@288	2430 }
adamc@289	2431
adamc@311	2432 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2433 char *endptr;
adamc@311	2434 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2435
adamc@289	2436 if (s != '\0' && endptr == '\0') {
adamc@311	2437 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2438 *r = n;
adamc@289	2439 return r;
adamc@289	2440 } else
adamc@289	2441 return NULL;
adamc@289	2442 }
adamc@289	2443
adamc@821	2444 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2445 if (s[0] == 0) {
adamc@821	2446 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2447 r[0] = 0;
adamc@821	2448 return r;
adamc@821	2449 } else if (s[1] != 0)
adamc@821	2450 return NULL;
adamc@821	2451 else {
adamc@821	2452 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2453 r[0] = s[0];
adamc@821	2454 return r;
adamc@821	2455 }
adamc@821	2456 }
adamc@821	2457
adamc@311	2458 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2459 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2460 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2461
adamc@289	2462 if (!strcasecmp (s, "True"))
adamc@289	2463 return &true;
adamc@289	2464 else if (!strcasecmp (s, "False"))
adamc@289	2465 return &false;
adamc@289	2466 else
adamc@289	2467 return NULL;
adamc@289	2468 }
adamc@292	2469
adamc@436	2470 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2471 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2472 struct tm stm;
adamc@436	2473
adamc@439	2474 if (dot) {
adamc@439	2475 *dot = 0;
adamc@439	2476 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2477 *dot = '.';
adamc@439	2478 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2479 *r = mktime(&stm);
adamc@439	2480 return r;
adamc@439	2481 }
adamc@439	2482 else {
adamc@439	2483 *dot = '.';
adamc@439	2484 return NULL;
adamc@439	2485 }
adamc@436	2486 }
adamc@439	2487 else {
adamc@439	2488 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2489 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2490 *r = mktime(&stm);
adamc@439	2491 return r;
adamc@439	2492 }
adamc@439	2493 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2494 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2495 *r = mktime(&stm);
adamc@439	2496 return r;
adamc@439	2497 }
adamc@439	2498 else
adamc@439	2499 return NULL;
adamc@439	2500 }
adamc@436	2501 }
adamc@436	2502
adamc@311	2503 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2504 char *endptr;
adamc@311	2505 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2506
adamc@292	2507 if (s != '\0' && endptr == '\0')
adamc@292	2508 return n;
adamc@292	2509 else
adamc@311	2510 uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292	2511 }
adamc@293	2512
adamc@682	2513 #include <errno.h>
adamc@682	2514
adamc@678	2515 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2516 unsigned long long n;
adamc@682	2517
adamc@682	2518 if (sscanf(s, "%llu", &n) < 1)
adamc@682	2519 uw_error(ctx, FATAL, "Can't parse channel: %s", s);
adamc@682	2520 else {
adamc@682	2521 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2522 return ch;
adamc@682	2523 }
adamc@682	2524 }
adamc@682	2525
adamc@682	2526 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2527 char *endptr;
adamc@682	2528 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2529
adamc@678	2530 if (s != '\0' && endptr == '\0')
adamc@678	2531 return n;
adamc@678	2532 else
adamc@682	2533 uw_error(ctx, FATAL, "Can't parse client: %s", s);
adamc@678	2534 }
adamc@678	2535
adamc@311	2536 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2537 char *endptr;
adamc@311	2538 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2539
adamc@293	2540 if (s != '\0' && endptr == '\0')
adamc@293	2541 return n;
adamc@293	2542 else
adamc@311	2543 uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293	2544 }
adamc@293	2545
adamc@821	2546 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2547 if (s[0] == 0)
adamc@821	2548 return 0;
adamc@821	2549 else if (s[1] != 0)
adamc@821	2550 uw_error(ctx, FATAL, "Can't parse char: %s", s);
adamc@821	2551 else
adamc@821	2552 return s[0];
adamc@821	2553 }
adamc@821	2554
adamc@311	2555 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2556 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2557 return uw_Basis_True;
adamc@296	2558 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2559 return uw_Basis_False;
adamc@293	2560 else
adamc@311	2561 uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293	2562 }
adamc@436	2563
adamc@436	2564 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2565 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2566 struct tm stm = {};
adamc@436	2567
adamc@438	2568 if (dot) {
adamc@438	2569 *dot = 0;
adamc@438	2570 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2571 *dot = '.';
adamc@438	2572 return mktime(&stm);
adamc@438	2573 }
adamc@438	2574 else {
adamc@438	2575 *dot = '.';
adamc@438	2576 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2577 }
adamc@438	2578 }
adamc@438	2579 else {
adamc@439	2580 if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439	2581 return mktime(&stm);
adamc@439	2582 else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438	2583 return mktime(&stm);
adamc@438	2584 else
adamc@438	2585 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2586 }
adamc@436	2587 }
adamc@457	2588
adamc@939	2589 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adamc@939	2590 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@939	2591 struct tm stm = {};
adamc@939	2592
adamc@939	2593 if (dot) {
adamc@939	2594 *dot = 0;
adamc@939	2595 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@939	2596 *dot = '.';
adamc@939	2597 return mktime(&stm);
adamc@939	2598 }
adamc@939	2599 else {
adamc@939	2600 *dot = '.';
adamc@939	2601 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2602 }
adamc@939	2603 }
adamc@939	2604 else {
adamc@939	2605 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@939	2606 return mktime(&stm);
adamc@939	2607 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@939	2608 return mktime(&stm);
adamc@939	2609 } else
adamc@939	2610 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2611 }
adamc@939	2612 }
adamc@939	2613
adamc@742	2614 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	2615 char *r = ctx->heap.front;
adamc@742	2616 uw_Basis_blob b = {len, r};
adamc@742	2617
adamc@742	2618 uw_check_heap(ctx, len);
adamc@742	2619
adamc@742	2620 while (*s) {
adamc@742	2621 if (s[0] == '\\') {
adamc@742	2622 if (s[1] == '\\') {
adamc@742	2623 *r++ = '\\';
adamc@742	2624 s += 2;
adamc@742	2625 } else if (isdigit(s[1]) && isdigit(s[2]) && isdigit(s[3])) {
adamc@742	2626 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	2627 s += 4;
adamc@742	2628 }
adamc@742	2629 else {
adamc@742	2630 *r++ = '\\';
adamc@742	2631 ++s;
adamc@742	2632 }
adamc@742	2633 } else {
adamc@742	2634 *r++ = s[0];
adamc@742	2635 ++s;
adamc@742	2636 }
adamc@742	2637 }
adamc@742	2638
adamc@742	2639 b.size = r - ctx->heap.front;
adamc@742	2640 ctx->heap.front = r;
adamc@742	2641 return b;
adamc@742	2642 }
adamc@742	2643
adamc@1052	2644 #define THE_PAST "expires=Mon, 01-01-1970 00:00:00 GMT"
adamc@1052	2645
adamc@463	2646 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	2647 int len = strlen(c);
adamc@854	2648 char *p = ctx->outHeaders.start;
adamc@474	2649
adamc@474	2650 while (p = strstr(p, "\nSet-Cookie: ")) {
adamc@474	2651 char *p2;
adamc@474	2652 p += 13;
adamc@474	2653 p2 = strchr(p, '=');
adamc@474	2654
adamc@474	2655 if (p2) {
adamc@474	2656 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	2657
adamc@474	2658 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	2659 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	2660 return NULL;
adamc@1052	2661 else {
adamc@1052	2662 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	2663 memcpy(ret, p2+1, sz);
adamc@1052	2664 ret[sz] = 0;
adamc@1052	2665 return ret;
adamc@1052	2666 }
adamc@474	2667 }
adamc@474	2668 }
adamc@474	2669 }
adamc@463	2670
adamc@854	2671 if (p = uw_Basis_requestHeader(ctx, "Cookie")) {
adamc@1051	2672 char *p2;
adamc@1051	2673
adamc@854	2674 while (1) {
adamc@1051	2675 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1051	2676 if (p2 = strchr(p, ';')) {
adamc@1051	2677 size_t n = p2 - (p + len);
adamc@1051	2678 char *r = uw_malloc(ctx, n);
adamc@1051	2679 memcpy(r, p + 1 + len, n-1);
adamc@1051	2680 r[n-1] = 0;
adamc@1051	2681 return r;
adamc@1051	2682 } else
adamc@1051	2683 return p + 1 + len;
adamc@1051	2684 } else if (p = strchr(p, ';'))
adamc@854	2685 p += 2;
adamc@463	2686 else
adamc@463	2687 return NULL;
adamc@463	2688 }
adamc@463	2689 }
adamc@792	2690
adamc@792	2691 return NULL;
adamc@457	2692 }
adamc@462	2693
adamc@1050	2694 uw_unit uw_Basis_set_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c, uw_Basis_string v, uw_Basis_time *expires, uw_Basis_bool secure) {
adamc@462	2695 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	2696 uw_write_header(ctx, c);
adamc@462	2697 uw_write_header(ctx, "=");
adamc@462	2698 uw_write_header(ctx, v);
adamc@466	2699 uw_write_header(ctx, "; path=");
adamc@466	2700 uw_write_header(ctx, prefix);
adamc@1050	2701 if (expires) {
adamc@1050	2702 char formatted[30];
adamc@1050	2703 struct tm tm;
adamc@1050	2704
adamc@1050	2705 gmtime_r(expires, &tm);
adamc@1050	2706
adamc@1050	2707 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	2708
adamc@1050	2709 uw_write_header(ctx, "; expires=");
adamc@1050	2710 uw_write_header(ctx, formatted);
adamc@1050	2711 }
adamc@1050	2712 if (secure)
adamc@1050	2713 uw_write_header(ctx, "; secure");
adamc@462	2714 uw_write_header(ctx, "\r\n");
adamc@462	2715
adamc@462	2716 return uw_unit_v;
adamc@462	2717 }
adamc@667	2718
adamc@1050	2719 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	2720 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	2721 uw_write_header(ctx, c);
adamc@1050	2722 uw_write_header(ctx, "=; path=");
adamc@1050	2723 uw_write_header(ctx, prefix);
adamc@1052	2724 uw_write_header(ctx, "; " THE_PAST "\r\n");
adamc@1050	2725
adamc@1050	2726 return uw_unit_v;
adamc@1050	2727 }
adamc@1050	2728
adamc@682	2729 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	2730 unsigned i;
adamc@682	2731 delta *d;
adamc@671	2732
adamc@682	2733 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	2734 if (ctx->deltas[i].client == client)
adamc@682	2735 return &ctx->deltas[i];
adamc@671	2736
adamc@682	2737 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@682	2738 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adamc@682	2739 buf_init(&ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	2740 }
adamc@671	2741
adamc@682	2742 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	2743 d->client = client;
adamc@682	2744 buf_reset(&d->msgs);
adamc@682	2745 return d;
adamc@671	2746 }
adamc@671	2747
adamc@668	2748 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	2749 if (ctx->client == NULL)
adamc@682	2750 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	2751
adamc@682	2752 return new_channel(ctx->client);
adamc@668	2753 }
adamc@668	2754
adamc@668	2755 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	2756 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	2757 size_t len;
adamc@682	2758 int preLen;
adamc@682	2759 char pre[INTS_MAX + 2];
adamc@668	2760
adamc@682	2761 len = strlen(msg);
adamc@682	2762
adamc@682	2763 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	2764
adamc@682	2765 buf_append(&d->msgs, pre, preLen);
adamc@682	2766 buf_append(&d->msgs, msg, len);
adamc@682	2767 buf_append(&d->msgs, "\n", 1);
adamc@671	2768
adamc@671	2769 return uw_unit_v;
adamc@668	2770 }
adamc@671	2771
adamc@671	2772 void uw_commit(uw_context ctx) {
adamc@1104	2773 int i;
adamc@1104	2774
adamc@1104	2775 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	2776 if (ctx->transactionals[i].rollback != NULL)
adamc@1083	2777 if (ctx->transactionals[i].commit)
adamc@1083	2778 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771	2779
adamc@1104	2780 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	2781 if (ctx->transactionals[i].rollback == NULL)
adamc@1083	2782 if (ctx->transactionals[i].commit)
adamc@1083	2783 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771	2784
adamc@1094	2785 if (ctx->app->db_commit(ctx))
adamc@671	2786 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@682	2787
adamc@682	2788 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	2789 delta *d = &ctx->deltas[i];
adamc@682	2790 client *c = find_client(d->client);
adamc@682	2791
adamc@682	2792 assert (c != NULL && c->mode == USED);
adamc@682	2793
adamc@685	2794 client_send(c, &d->msgs);
adamc@682	2795 }
adamc@682	2796
adamc@682	2797 if (ctx->client)
adamc@685	2798 release_client(ctx->client);
adamc@771	2799
adamc@1104	2800 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	2801 if (ctx->transactionals[i].free)
adamc@1083	2802 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@916	2803
adamc@916	2804 // Splice script data into appropriate part of page
adamc@1065	2805 if (ctx->returning_indirectly \|\| ctx->script_header[0] == 0) {
adamc@995	2806 char *start = strstr(ctx->page.start, "<sc>");
adamc@995	2807 if (start) {
adamc@995	2808 memmove(start, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 4);
adamc@995	2809 ctx->page.front -= 4;
adamc@995	2810 }
adamc@995	2811 } else if (buf_used(&ctx->script) == 0) {
adamc@916	2812 size_t len = strlen(ctx->script_header);
adamc@916	2813 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2814 if (start) {
adamc@916	2815 buf_check(&ctx->page, buf_used(&ctx->page) - 4 + len);
adamc@917	2816 start = strstr(ctx->page.start, "<sc>");
adamc@916	2817 memmove(start + len, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2818 ctx->page.front += len - 4;
adamc@916	2819 memcpy(start, ctx->script_header, len);
adamc@916	2820 }
adamc@916	2821 } else {
adamc@916	2822 size_t lenH = strlen(ctx->script_header), len = buf_used(&ctx->script);
adamc@916	2823 size_t lenP = lenH + 40 + len;
adamc@916	2824 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2825 if (start) {
adamc@916	2826 buf_check(&ctx->page, buf_used(&ctx->page) - 4 + lenP);
adamc@917	2827 start = strstr(ctx->page.start, "<sc>");
adamc@916	2828 memmove(start + lenP, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2829 ctx->page.front += lenP - 4;
adamc@916	2830 memcpy(start, ctx->script_header, lenH);
adamc@916	2831 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916	2832 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916	2833 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916	2834 }
adamc@916	2835 }
adamc@671	2836 }
adamc@671	2837
adamc@671	2838 int uw_rollback(uw_context ctx) {
adamc@1104	2839 int i;
adamc@885	2840 cleanup *cl;
adamc@771	2841
adamc@682	2842 if (ctx->client)
adamc@685	2843 release_client(ctx->client);
adamc@671	2844
adamc@885	2845 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@885	2846 cl->func(cl->arg);
adamc@885	2847
adamc@885	2848 ctx->cleanup_front = ctx->cleanup;
adamc@885	2849
adamc@1104	2850 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	2851 if (ctx->transactionals[i].rollback != NULL)
adamc@771	2852 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@771	2853
adamc@1104	2854 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1084	2855 if (ctx->transactionals[i].free)
adamc@1084	2856 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@771	2857
adamc@1094	2858 return ctx->app->db_rollback(ctx);
adamc@671	2859 }
adamc@683	2860
adamc@771	2861 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adamc@771	2862 uw_callback free) {
adamc@771	2863 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1084	2864 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	2865 ++ctx->n_transactionals;
adamc@771	2866 }
adamc@771	2867
adamc@771	2868 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	2869 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	2870 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	2871 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	2872 }
adamc@771	2873
adamc@683	2874
adamc@683	2875 // "Garbage collection"
adamc@683	2876
adamc@683	2877 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli) {
adamc@683	2878 int r = setjmp(ctx->jmp_buf);
adamc@683	2879
adamc@684	2880 if (r == 0) {
adamc@1094	2881 if (ctx->app->db_begin(ctx))
adamc@684	2882 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@1094	2883 ctx->app->expunger(ctx, cli);
adamc@1094	2884 if (ctx->app->db_commit(ctx))
adamc@684	2885 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@684	2886 }
adamc@683	2887
adamc@683	2888 return r;
adamc@683	2889 }
adamc@683	2890
adamc@683	2891 void uw_prune_clients(uw_context ctx) {
adamc@683	2892 client c, next, *prev = NULL;
adamc@683	2893 time_t cutoff;
adamc@683	2894
adamc@1094	2895 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	2896
adamc@683	2897 pthread_mutex_lock(&clients_mutex);
adamc@683	2898
adamc@683	2899 for (c = clients_used; c; c = next) {
adamc@683	2900 next = c->next;
adamc@683	2901 pthread_mutex_lock(&c->lock);
adamc@685	2902 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	2903 failure_kind fk = UNLIMITED_RETRY;
adamc@683	2904 if (prev)
adamc@683	2905 prev->next = next;
adamc@683	2906 else
adamc@683	2907 clients_used = next;
adamc@684	2908 uw_reset(ctx);
adamc@683	2909 while (fk == UNLIMITED_RETRY) {
adamc@683	2910 fk = uw_expunge(ctx, c->id);
adamc@684	2911 if (fk == UNLIMITED_RETRY) {
adamc@1094	2912 ctx->app->db_rollback(ctx);
adamc@684	2913 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	2914 }
adamc@683	2915 }
adamc@684	2916 if (fk == SUCCESS)
adamc@684	2917 free_client(c);
adamc@684	2918 else {
adamc@1094	2919 ctx->app->db_rollback(ctx);
adamc@856	2920 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@684	2921 }
adamc@683	2922 }
adamc@683	2923 else
adamc@683	2924 prev = c;
adamc@683	2925 pthread_mutex_unlock(&c->lock);
adamc@683	2926 }
adamc@683	2927
adamc@683	2928 pthread_mutex_unlock(&clients_mutex);
adamc@683	2929 }
adamc@687	2930
adamc@687	2931 failure_kind uw_initialize(uw_context ctx) {
adamc@687	2932 int r = setjmp(ctx->jmp_buf);
adamc@687	2933
adamc@687	2934 if (r == 0) {
adamc@1094	2935 if (ctx->app->db_begin(ctx))
adamc@687	2936 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@1094	2937 ctx->app->initializer(ctx);
adamc@1094	2938 if (ctx->app->db_commit(ctx))
adamc@687	2939 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	2940 }
adamc@687	2941
adamc@687	2942 return r;
adamc@687	2943 }
adamc@717	2944
adamc@1065	2945 static int url_bad(uw_Basis_string s) {
adamc@1065	2946 for (; *s; ++s)
adamc@1065	2947 if (!isgraph(*s))
adamc@1065	2948 return 1;
adamc@1065	2949
adamc@1065	2950 return 0;
adamc@1065	2951 }
adamc@1065	2952
adamc@717	2953 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	2954 if (url_bad(s))
adamc@1065	2955 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	2956 if (ctx->app->check_url(s))
adamc@770	2957 return s;
adamc@770	2958 else
adamc@770	2959 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	2960 }
adamc@734	2961
adamc@770	2962 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	2963 if (url_bad(s))
adamc@1065	2964 return NULL;
adamc@1094	2965 if (ctx->app->check_url(s))
adamc@770	2966 return s;
adamc@770	2967 else
adamc@770	2968 return NULL;
adamc@770	2969 }
adamc@770	2970
adamc@770	2971 int mime_format(const char *s) {
adamc@770	2972 for (; *s; ++s)
adamc@770	2973 if (!isalnum(s) && s != '/' && s != '-' && s != '.')
adamc@770	2974 return 0;
adamc@770	2975
adamc@770	2976 return 1;
adamc@770	2977 }
adamc@770	2978
adamc@741	2979 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	2980 if (!mime_format(s))
adamc@770	2981 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	2982
adamc@1094	2983 if (ctx->app->check_mime(s))
adamc@770	2984 return s;
adamc@770	2985 else
adamc@770	2986 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	2987 }
adamc@770	2988
adamc@770	2989 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	2990 if (!mime_format(s))
adamc@770	2991 return NULL;
adamc@770	2992
adamc@1094	2993 if (ctx->app->check_mime(s))
adamc@770	2994 return s;
adamc@770	2995 else
adamc@770	2996 return NULL;
adamc@741	2997 }
adamc@741	2998
adamc@734	2999 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3000 return s ? s : "";
adamc@734	3001 }
adamc@734	3002
adamc@734	3003 extern int uw_hash_blocksize;
adamc@734	3004
adamc@734	3005 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3006 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3007 int i;
adamc@734	3008
adamc@734	3009 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3010 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3011
adamc@734	3012 return r;
adamc@734	3013 }
adamc@734	3014
adamc@734	3015 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@1094	3016 return ctx->app->cookie_sig(ctx);
adamc@734	3017 }
adamc@737	3018
adamc@737	3019 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3020 return f.name;
adamc@737	3021 }
adamc@737	3022
adamc@740	3023 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3024 return f.type;
adamc@740	3025 }
adamc@740	3026
adamc@745	3027 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3028 return b.size;
adamc@745	3029 }
adamc@745	3030
adamc@737	3031 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3032 return f.data;
adamc@737	3033 }
adamc@741	3034
adamc@741	3035 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3036 cleanup *cl;
adamc@741	3037 int len;
adamc@741	3038
adamc@1065	3039 ctx->returning_indirectly = 1;
adamc@741	3040 buf_reset(&ctx->outHeaders);
adamc@741	3041 buf_reset(&ctx->page);
adamc@741	3042
adamc@856	3043 uw_write_header(ctx, on_success);
adamc@856	3044 uw_write_header(ctx, "Content-Type: ");
adamc@741	3045 uw_write_header(ctx, mimeType);
adamc@741	3046 uw_write_header(ctx, "\r\nContent-Length: ");
adamc@741	3047 buf_check(&ctx->outHeaders, INTS_MAX);
adamc@741	3048 sprintf(ctx->outHeaders.front, "%d%n", b.size, &len);
adamc@741	3049 ctx->outHeaders.front += len;
adamc@1066	3050 uw_write_header(ctx, "\r\n");
adamc@741	3051
adamc@741	3052 buf_append(&ctx->page, b.data, b.size);
adamc@741	3053
adamc@741	3054 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3055 cl->func(cl->arg);
adamc@741	3056
adamc@741	3057 ctx->cleanup_front = ctx->cleanup;
adamc@741	3058
adamc@1065	3059 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3060 }
adamc@1065	3061
adamc@1065	3062 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3063 cleanup *cl;
adamc@1065	3064 int len;
adamc@1066	3065 char *s;
adamc@1065	3066
adamc@1065	3067 ctx->returning_indirectly = 1;
adamc@1066	3068 buf_reset(&ctx->page);
adamc@1066	3069 buf_check(&ctx->page, buf_used(&ctx->outHeaders)+1);
adamc@1066	3070 memcpy(ctx->page.start, ctx->outHeaders.start, buf_used(&ctx->outHeaders));
adamc@1066	3071 ctx->page.start[buf_used(&ctx->outHeaders)] = 0;
adamc@1065	3072 buf_reset(&ctx->outHeaders);
adamc@1065	3073
adamc@1065	3074 uw_write_header(ctx, on_redirect);
adamc@1066	3075
adamc@1066	3076 s = strchr(ctx->page.start, '\n');
adamc@1066	3077 if (s) {
adamc@1066	3078 char *s2;
adamc@1066	3079 for (++s; s2 = strchr(s, '\n'); s = s2+1) {
adamc@1066	3080 *s2 = 0;
adamc@1066	3081 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3082 uw_write_header(ctx, s);
adamc@1066	3083 uw_write_header(ctx, "\n");
adamc@1066	3084 }
adamc@1066	3085 }
adamc@1066	3086 }
adamc@1066	3087
adamc@1065	3088 uw_write_header(ctx, "Location: ");
adamc@1065	3089 uw_write_header(ctx, url);
adamc@1065	3090 uw_write_header(ctx, "\r\n\r\n");
adamc@1065	3091
adamc@1065	3092 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3093 cl->func(cl->arg);
adamc@1065	3094
adamc@1065	3095 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3096
adamc@1065	3097 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3098 }
adamc@874	3099
adamc@874	3100 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adamc@874	3101 uw_Basis_string r = uw_malloc(ctx, strlen(s) + 1);
adamc@874	3102
adamc@874	3103 for (; *s; ++s) {
adamc@874	3104 if (s[0] == '\'') {
adamc@874	3105 *r++ = '\'';
adamc@874	3106 for (++s; *s; ++s) {
adamc@874	3107 if (s[0] == '\'') {
adamc@874	3108 *r++ = '\'';
adamc@874	3109 break;
adamc@874	3110 } else if (s[0] == '\\') {
adamc@874	3111 if (s[1] == '\\') {
adamc@874	3112 *r++ = '\\';
adamc@874	3113 *r++ = '\\';
adamc@874	3114 ++s;
adamc@874	3115 } else if (s[1] == '\'') {
adamc@874	3116 *r++ = '\\';
adamc@874	3117 *r++ = '\'';
adamc@874	3118 ++s;
adamc@874	3119 } else
adamc@874	3120 *r++ = '\'';
adamc@874	3121 } else
adamc@874	3122 *r++ = s[0];
adamc@874	3123 }
adamc@874	3124 if (*s == 0) break;
adamc@874	3125 } else if (s[0] == 'T' && s[1] == '.')
adamc@874	3126 ++s;
adamc@874	3127 else
adamc@874	3128 *r++ = s[0];
adamc@874	3129 }
adamc@874	3130
adamc@874	3131 return r;
adamc@874	3132 }
adamc@874	3133
adamc@922	3134 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3135 va_list ap;
adamc@922	3136 size_t len = 1;
adamc@922	3137 char s, r, *s2;
adamc@922	3138
adamc@922	3139 va_start(ap, ctx);
adamc@922	3140 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3141 len += strlen(s);
adamc@922	3142 va_end(ap);
adamc@922	3143
adamc@922	3144 r = uw_malloc(ctx, len);
adamc@922	3145 va_start(ap, ctx);
adamc@922	3146 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3147 while (*s)
adamc@922	3148 s2++ = s++;
adamc@922	3149 va_end(ap);
adamc@922	3150 *s2 = 0;
adamc@922	3151
adamc@922	3152 return r;
adamc@922	3153 }
adamc@1006	3154
adamc@1050	3155 const uw_Basis_time minTime = 0;
adamc@1050	3156
adamc@1006	3157 uw_Basis_time uw_Basis_now(uw_context ctx) {
adamc@1006	3158 return time(NULL);
adamc@1006	3159 }
adamc@1061	3160
adamc@1061	3161 void uw_get_global(uw_context ctx, char name) {
adamc@1061	3162 int i;
adamc@1061	3163
adamc@1061	3164 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3165 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	3166 return ctx->globals[i].data;
adamc@1061	3167
adamc@1061	3168 return NULL;
adamc@1061	3169 }
adamc@1061	3170
adamc@1061	3171 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	3172 int i;
adamc@1061	3173
adamc@1061	3174 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3175 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	3176 if (ctx->globals[i].free)
adamc@1061	3177 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	3178 ctx->globals[i].data = data;
adamc@1061	3179 ctx->globals[i].free = free;
adamc@1061	3180 return;
adamc@1061	3181 }
adamc@1089	3182
adamc@1061	3183 ++ctx->n_globals;
adamc@1061	3184 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	3185 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	3186 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	3187 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	3188 }
adamc@1061	3189
adamc@1061	3190 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1063	3191 return !!isalnum(c);
adamc@1061	3192 }
adamc@1061	3193
adamc@1061	3194 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1063	3195 return !!isalpha(c);
adamc@1061	3196 }
adamc@1061	3197
adamc@1061	3198 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1063	3199 return !!isblank(c);
adamc@1061	3200 }
adamc@1061	3201
adamc@1061	3202 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1063	3203 return !!iscntrl(c);
adamc@1061	3204 }
adamc@1061	3205
adamc@1061	3206 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1063	3207 return !!isdigit(c);
adamc@1061	3208 }
adamc@1061	3209
adamc@1061	3210 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1063	3211 return !!isgraph(c);
adamc@1061	3212 }
adamc@1061	3213
adamc@1061	3214 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1063	3215 return !!islower(c);
adamc@1061	3216 }
adamc@1061	3217
adamc@1061	3218 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1063	3219 return !!isprint(c);
adamc@1061	3220 }
adamc@1061	3221
adamc@1061	3222 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1063	3223 return !!ispunct(c);
adamc@1061	3224 }
adamc@1061	3225
adamc@1061	3226 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1063	3227 return !!isspace(c);
adamc@1061	3228 }
adamc@1063	3229
adamc@1061	3230 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1063	3231 return !!isupper(c);
adamc@1061	3232 }
adamc@1061	3233
adamc@1061	3234 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1063	3235 return !!isxdigit(c);
adamc@1061	3236 }
adamc@1061	3237
adamc@1061	3238 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1061	3239 return tolower(c);
adamc@1061	3240 }
adamc@1061	3241
adamc@1061	3242 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1061	3243 return toupper(c);
adamc@1061	3244 }
adamc@1066	3245
adamc@1066	3246 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	3247 return ctx->current_url;
adamc@1066	3248 }
adamc@1066	3249
adamc@1066	3250 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	3251 ctx->current_url = s;
adamc@1066	3252 }

Mercurial > urweb

annotate src/c/urweb.c @ 1104:72670131dace