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

annotate src/c/urweb.c @ 1112:7a31e0cf25e9

Proper C-side deserialization; Shake.sliceDb

author	Adam Chlipala <adamc@hcoop.net>
date	Sun, 03 Jan 2010 12:47:27 -0500
parents	7fc4e0087e50
children	40d48a2b78a7

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@1105	453 if (app && 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@1105	515 if (ctx->app)
adamc@1105	516 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	517 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adamc@756	518 ctx->used_subinputs = 0;
adamc@144	519 }
adamc@144	520
adamc@311	521 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	522 int r = setjmp(ctx->jmp_buf);
adamc@272	523
adamc@1105	524 if (r == 0 && ctx->app)
adamc@1094	525 ctx->app->db_init(ctx);
adamc@272	526
adamc@272	527 return r;
adamc@272	528 }
adamc@272	529
adamc@854	530 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	531 ctx->get_header = get_header;
adamc@854	532 ctx->get_header_data = get_header_data;
adamc@742	533 }
adamc@742	534
adamc@801	535 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	536 va_list ap;
adamc@801	537 va_start(ap, fmt);
adamc@801	538
adamc@801	539 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	540 }
adamc@801	541
adamc@311	542 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	543 cleanup *cl;
adamc@425	544
adamc@167	545 va_list ap;
adamc@167	546 va_start(ap, fmt);
adamc@167	547
adamc@167	548 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	549
adamc@425	550 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	551 cl->func(cl->arg);
adamc@425	552
adamc@425	553 ctx->cleanup_front = ctx->cleanup;
adamc@425	554
adamc@190	555 longjmp(ctx->jmp_buf, fk);
adamc@167	556 }
adamc@167	557
adamc@425	558 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	559 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	560 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	561 if (len == 0)
adamc@425	562 newLen = 1;
adamc@425	563 else
adamc@428	564 newLen = len * 2;
adamc@470	565 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	566 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	567 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	568 }
adamc@425	569
adamc@425	570 ctx->cleanup_front->func = func;
adamc@425	571 ctx->cleanup_front->arg = arg;
adamc@425	572 ++ctx->cleanup_front;
adamc@425	573 }
adamc@425	574
adamc@682	575 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adamc@854	576 return ctx->get_header(ctx->get_header_data, h);
adamc@682	577 }
adamc@682	578
adamc@682	579 void uw_login(uw_context ctx) {
adamc@693	580 if (ctx->needs_push) {
adamc@682	581 char id_s, pass_s;
adamc@682	582
adamc@682	583 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682	584 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682	585 unsigned id = atoi(id_s);
adamc@682	586 int pass = atoi(pass_s);
adamc@682	587 client *c = find_client(id);
adamc@682	588
adamc@682	589 if (c == NULL)
adamc@682	590 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", id_s, pass_s);
adamc@682	591 else {
adamc@685	592 use_client(c);
adamc@682	593 ctx->client = c;
adamc@682	594
adamc@682	595 if (c->mode != USED)
adamc@682	596 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682	597 if (c->pass != pass)
adamc@682	598 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682	599 }
adamc@682	600 } else {
adamc@682	601 client *c = new_client();
adamc@685	602 use_client(c);
adamc@682	603 ctx->client = c;
adamc@864	604 }
adamc@682	605 }
adamc@682	606 }
adamc@682	607
adamc@671	608 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	609 int r = setjmp(ctx->jmp_buf);
adamc@671	610
adamc@671	611 if (r == 0) {
adamc@1094	612 if (ctx->app->db_begin(ctx))
adamc@671	613 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adamc@682	614
adamc@1094	615 ctx->app->handle(ctx, path);
adamc@671	616 }
adamc@671	617
adamc@671	618 return r;
adamc@671	619 }
adamc@671	620
adamc@772	621 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	622 if (ctx->client == NULL)
adamc@682	623 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	624
adamc@682	625 return ctx->client->id;
adamc@682	626 }
adamc@682	627
adamc@425	628 void uw_pop_cleanup(uw_context ctx) {
adamc@425	629 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	630 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	631
adamc@425	632 --ctx->cleanup_front;
adamc@425	633 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	634 }
adamc@425	635
adamc@311	636 char *uw_error_message(uw_context ctx) {
adamc@167	637 return ctx->error_message;
adamc@167	638 }
adamc@167	639
adamc@759	640 static input *INP(uw_context ctx) {
adamc@759	641 if (ctx->cur_container == NULL)
adamc@759	642 return ctx->inputs;
adamc@759	643 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	644 return ctx->cur_container->data.subform.fields;
adamc@759	645 else if (ctx->cur_container->kind == ENTRY)
adamc@759	646 return ctx->cur_container->data.entry.fields;
adamc@759	647 else
adamc@760	648 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	649 }
adamc@759	650
adamc@760	651 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	652 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	653 *ptr += new_start - old_start;
adamc@760	654 }
adamc@760	655
adamc@760	656 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	657 switch (x->kind) {
adamc@759	658 case SUBFORM:
adamc@760	659 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	660 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	661 break;
adamc@759	662 case SUBFORMS:
adamc@760	663 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	664 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	665 break;
adamc@759	666 case ENTRY:
adamc@760	667 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	668 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	669 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@759	670 }
adamc@759	671 }
adamc@759	672
adamc@759	673 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	674 size_t i;
adamc@759	675 input *r;
adamc@759	676
adamc@759	677 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@759	678 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	679 size_t offset = new_subinputs - ctx->subinputs;
adamc@759	680
adamc@760	681 if (ctx->subinputs != new_subinputs) {
adamc@760	682 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	683 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	684 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	685 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	686
adamc@760	687 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	688
adamc@760	689 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	690 ctx->subinputs = new_subinputs;
adamc@760	691 }
adamc@759	692 }
adamc@759	693
adamc@759	694 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	695
adamc@759	696 for (i = 0; i < len; ++i)
adamc@759	697 ctx->subinputs[ctx->used_subinputs++].kind = UNUSED;
adamc@759	698
adamc@759	699 return r;
adamc@759	700 }
adamc@756	701
adamc@801	702 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	703 //printf("Input name %s\n", name);
adamc@1038	704
adamc@756	705 if (!strcasecmp(name, ".b")) {
adamc@1094	706 int n = ctx->app->input_num(value);
adamc@756	707 input *inps;
adamc@756	708
adamc@801	709 if (n < 0) {
adamc@801	710 uw_set_error(ctx, "Bad subform name %s", value);
adamc@801	711 return -1;
adamc@801	712 }
adamc@801	713
adamc@1094	714 if (n >= ctx->app->inputs_len) {
adamc@801	715 uw_set_error(ctx, "For subform name %s, index %d is out of range", value, n);
adamc@801	716 return -1;
adamc@801	717 }
adamc@756	718
adamc@1094	719 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	720
adamc@759	721 INP(ctx)[n].kind = SUBFORM;
adamc@759	722 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	723 INP(ctx)[n].data.subform.fields = inps;
adamc@759	724 ctx->cur_container = &INP(ctx)[n];
adamc@756	725 } else if (!strcasecmp(name, ".e")) {
adamc@756	726 input *tmp;
adamc@756	727
adamc@801	728 if (ctx->cur_container == NULL) {
adamc@801	729 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	730 return -1;
adamc@801	731 }
adamc@756	732
adamc@759	733 tmp = ctx->cur_container;
adamc@759	734 switch (tmp->kind) {
adamc@759	735 case SUBFORM:
adamc@759	736 ctx->cur_container = tmp->data.subform.parent;
adamc@759	737 tmp->data.subform.parent = NULL;
adamc@759	738 break;
adamc@759	739 case SUBFORMS:
adamc@759	740 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	741 tmp->data.subforms.parent = NULL;
adamc@759	742 break;
adamc@759	743 case ENTRY:
adamc@759	744 ctx->cur_container = tmp->data.entry.parent;
adamc@759	745 break;
adamc@759	746 default:
adamc@801	747 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	748 return -1;
adamc@759	749 }
adamc@759	750 } else if (!strcasecmp(name, ".s")) {
adamc@1094	751 int n = ctx->app->input_num(value);
adamc@759	752
adamc@801	753 if (n < 0) {
adamc@801	754 uw_set_error(ctx, "Bad subforms name %s", value);
adamc@801	755 return -1;
adamc@801	756 }
adamc@801	757
adamc@1094	758 if (n >= ctx->app->inputs_len) {
adamc@801	759 uw_set_error(ctx, "For subforms name %s, index %d is out of range", value, n);
adamc@801	760 return -1;
adamc@801	761 }
adamc@759	762
adamc@759	763 INP(ctx)[n].kind = SUBFORMS;
adamc@759	764 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	765 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	766 ctx->cur_container = &INP(ctx)[n];
adamc@759	767 } else if (!strcasecmp(name, ".i")) {
adamc@759	768 input *inps;
adamc@759	769
adamc@801	770 if (!ctx->cur_container) {
adamc@801	771 uw_set_error(ctx, "New entry without container");
adamc@801	772 return -1;
adamc@801	773 }
adamc@801	774
adamc@801	775 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	776 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	777 return -1;
adamc@801	778 }
adamc@759	779
adamc@1094	780 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	781
adamc@759	782 inps->kind = ENTRY;
adamc@759	783 inps->data.entry.parent = ctx->cur_container;
adamc@759	784 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	785 ctx->cur_container->data.subforms.entries = inps;
adamc@759	786
adamc@759	787 inps->data.entry.fields = inps+1;
adamc@759	788 ctx->cur_container = inps;
adamc@756	789 } else {
adamc@1094	790 int n = ctx->app->input_num(name);
adamc@756	791
adamc@801	792 if (n < 0) {
adamc@1038	793 if (!strcmp(name, "null"))
adamc@1038	794 return 0;
adamc@801	795 uw_set_error(ctx, "Bad input name %s", name);
adamc@801	796 return -1;
adamc@801	797 }
adamc@801	798
adamc@1094	799 if (n >= ctx->app->inputs_len) {
adamc@801	800 uw_set_error(ctx, "For input name %s, index %d is out of range", name, n);
adamc@801	801 return -1;
adamc@801	802 }
adamc@756	803
adamc@756	804 INP(ctx)[n].kind = NORMAL;
adamc@756	805 INP(ctx)[n].data.normal = value;
adamc@756	806 }
adamc@801	807
adamc@801	808 return 0;
adamc@144	809 }
adamc@144	810
adamc@311	811 char *uw_get_input(uw_context ctx, int n) {
adamc@169	812 if (n < 0)
adamc@311	813 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	814 if (n >= ctx->app->inputs_len)
adamc@311	815 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	816
adamc@756	817 switch (INP(ctx)[n].kind) {
adamc@737	818 case UNSET:
adamc@737	819 return NULL;
adamc@739	820 case FIL:
adamc@739	821 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	822 case SUBFORM:
adamc@756	823 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	824 case SUBFORMS:
adamc@759	825 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	826 case ENTRY:
adamc@759	827 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	828 case NORMAL:
adamc@756	829 return INP(ctx)[n].data.normal;
adamc@737	830 default:
adamc@737	831 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	832 }
adamc@138	833 }
adamc@138	834
adamc@311	835 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	836 if (n < 0)
adamc@311	837 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	838 if (n >= ctx->app->inputs_len)
adamc@311	839 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	840
adamc@756	841 switch (INP(ctx)[n].kind) {
adamc@737	842 case UNSET:
adamc@737	843 return "";
adamc@739	844 case FIL:
adamc@739	845 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	846 case SUBFORM:
adamc@756	847 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	848 case SUBFORMS:
adamc@759	849 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	850 case ENTRY:
adamc@759	851 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	852 case NORMAL:
adamc@756	853 return INP(ctx)[n].data.normal;
adamc@737	854 default:
adamc@737	855 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	856 }
adamc@737	857 }
adamc@737	858
adamc@801	859 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	860 int n = ctx->app->input_num(name);
adamc@737	861
adamc@801	862 if (n < 0) {
adamc@801	863 uw_set_error(ctx, "Bad file input name %s", name);
adamc@801	864 return -1;
adamc@801	865 }
adamc@801	866
adamc@1094	867 if (n >= ctx->app->inputs_len) {
adamc@801	868 uw_set_error(ctx, "For file input name %s, index %d is out of range", name, n);
adamc@801	869 return -1;
adamc@801	870 }
adamc@737	871
adamc@739	872 ctx->inputs[n].kind = FIL;
adamc@739	873 ctx->inputs[n].data.file = f;
adamc@801	874
adamc@801	875 return 0;
adamc@737	876 }
adamc@737	877
adamc@739	878 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	879
adamc@760	880 static void parents(input *inp) {
adamc@760	881 printf("Stack: %p\n", inp);
adamc@760	882 while (inp) {
adamc@760	883 switch (inp->kind) {
adamc@760	884 case NORMAL:
adamc@760	885 printf("Normal(%p)\n", inp);
adamc@760	886 break;
adamc@760	887 case FIL:
adamc@760	888 printf("File(%p)\n", inp);
adamc@760	889 break;
adamc@760	890 case SUBFORM:
adamc@760	891 printf("Subform; fields = %p\n", inp->data.subform.fields);
adamc@760	892 inp = inp->data.subform.parent;
adamc@760	893 break;
adamc@760	894 case SUBFORMS:
adamc@760	895 printf("Subforms; entries = %p\n", inp->data.subforms.entries);
adamc@760	896 inp = inp->data.subforms.parent;
adamc@760	897 break;
adamc@760	898 case ENTRY:
adamc@760	899 printf("Entry; fields = %p; next = %p\n", inp->data.entry.fields, inp->data.entry.next);
adamc@760	900 inp = inp->data.entry.parent;
adamc@760	901 break;
adamc@760	902 default:
adamc@760	903 inp = NULL;
adamc@760	904 }
adamc@760	905 }
adamc@760	906 }
adamc@760	907
adamc@739	908 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	909 if (n < 0)
adamc@737	910 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	911 if (n >= ctx->app->inputs_len)
adamc@737	912 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	913
adamc@756	914 switch (INP(ctx)[n].kind) {
adamc@737	915 case UNSET:
adamc@737	916 {
adamc@739	917 char *data = uw_malloc(ctx, 0);
adamc@740	918 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	919 return f;
adamc@737	920 }
adamc@739	921 case FIL:
adamc@756	922 return INP(ctx)[n].data.file;
adamc@737	923 case NORMAL:
adamc@737	924 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	925 case SUBFORM:
adamc@756	926 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	927 case SUBFORMS:
adamc@759	928 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	929 case ENTRY:
adamc@759	930 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	931 default:
adamc@737	932 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	933 }
adamc@190	934 }
adamc@190	935
adamc@756	936 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	937 if (n < 0)
adamc@756	938 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	939 if (n >= ctx->app->inputs_len)
adamc@756	940 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	941
adamc@756	942 switch (INP(ctx)[n].kind) {
adamc@756	943 case UNSET:
adamc@756	944 uw_error(ctx, FATAL, "Missing subform");
adamc@756	945 case FIL:
adamc@756	946 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	947 case NORMAL:
adamc@756	948 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	949 case SUBFORMS:
adamc@759	950 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	951 case ENTRY:
adamc@759	952 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	953 case SUBFORM:
adamc@759	954 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	955 ctx->cur_container = &INP(ctx)[n];
adamc@756	956 return;
adamc@756	957 default:
adamc@756	958 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	959 }
adamc@756	960 }
adamc@756	961
adamc@756	962 void uw_leave_subform(uw_context ctx) {
adamc@756	963 input *tmp;
adamc@756	964
adamc@759	965 if (ctx->cur_container == NULL)
adamc@756	966 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	967
adamc@759	968 tmp = ctx->cur_container;
adamc@759	969 ctx->cur_container = tmp->data.subform.parent;
adamc@759	970 tmp->data.subform.parent = NULL;
adamc@759	971 }
adamc@759	972
adamc@759	973 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	974 input *inps;
adamc@759	975
adamc@759	976 if (n < 0)
adamc@759	977 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	978 if (n >= ctx->app->inputs_len)
adamc@759	979 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	980
adamc@759	981 switch (INP(ctx)[n].kind) {
adamc@759	982 case UNSET:
adamc@759	983 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	984 case FIL:
adamc@759	985 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	986 case NORMAL:
adamc@759	987 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	988 case SUBFORM:
adamc@759	989 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	990 case ENTRY:
adamc@759	991 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	992 case SUBFORMS:
adamc@759	993 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	994 if (inps) {
adamc@759	995 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	996 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	997 return 1;
adamc@759	998 } else
adamc@759	999 return 0;
adamc@759	1000 default:
adamc@759	1001 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1002 }
adamc@759	1003 }
adamc@759	1004
adamc@759	1005 int uw_next_entry(uw_context ctx) {
adamc@759	1006 if (ctx->cur_container == NULL)
adamc@759	1007 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1008
adamc@759	1009 switch (ctx->cur_container->kind) {
adamc@759	1010 case UNSET:
adamc@759	1011 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1012 case FIL:
adamc@759	1013 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1014 case NORMAL:
adamc@759	1015 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1016 case SUBFORM:
adamc@759	1017 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1018 case SUBFORMS:
adamc@759	1019 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1020 case ENTRY:
adamc@759	1021 if (ctx->cur_container->data.entry.next) {
adamc@759	1022 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1023 return 1;
adamc@759	1024 } else {
adamc@759	1025 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1026 return 0;
adamc@759	1027 }
adamc@759	1028 default:
adamc@759	1029 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1030 }
adamc@756	1031 }
adamc@756	1032
adamc@643	1033 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1034 ctx->script_header = s;
adamc@643	1035 }
adamc@643	1036
adamc@1094	1037 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1038 return ctx->app->url_prefix;
adamc@667	1039 }
adamc@667	1040
adamc@693	1041 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1042 ctx->needs_push = n;
adamc@693	1043 }
adamc@693	1044
adamc@736	1045 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1046 ctx->needs_sig = n;
adamc@736	1047 }
adamc@736	1048
adamc@667	1049
adamc@667	1050 static void buf_check_ctx(uw_context ctx, buf b, size_t extra, const char desc) {
adamc@666	1051 if (b->back - b->front < extra) {
adamc@666	1052 size_t desired = b->front - b->start + extra, next;
adamc@136	1053 char *new_heap;
adamc@136	1054
adamc@666	1055 next = b->back - b->start;
adamc@317	1056 if (next == 0)
adamc@317	1057 next = 1;
adamc@317	1058 for (; next < desired; next *= 2);
adamc@136	1059
adamc@666	1060 new_heap = realloc(b->start, next);
adamc@666	1061 b->front = new_heap + (b->front - b->start);
adamc@666	1062 b->back = new_heap + next;
adamc@136	1063
adamc@667	1064 if (new_heap != b->start) {
adamc@666	1065 b->start = new_heap;
adamc@666	1066 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously", desc);
adamc@136	1067 }
adamc@136	1068
adamc@666	1069 b->start = new_heap;
adamc@136	1070 }
adamc@136	1071 }
adamc@136	1072
adamc@832	1073 void uw_check_heap(uw_context ctx, size_t extra) {
adamc@667	1074 buf_check_ctx(ctx, &ctx->heap, extra, "heap chunk");
adamc@666	1075 }
adamc@666	1076
adamc@832	1077 char *uw_heap_front(uw_context ctx) {
adamc@832	1078 return ctx->heap.front;
adamc@832	1079 }
adamc@832	1080
adamc@832	1081 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1082 ctx->heap.front = fr;
adamc@832	1083 }
adamc@832	1084
adamc@311	1085 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136	1086 void *result;
adamc@136	1087
adamc@311	1088 uw_check_heap(ctx, len);
adamc@136	1089
adamc@666	1090 result = ctx->heap.front;
adamc@666	1091 ctx->heap.front += len;
adamc@136	1092 return result;
adamc@117	1093 }
adamc@117	1094
adamc@323	1095 void uw_begin_region(uw_context ctx) {
adamc@666	1096 regions r = (regions ) ctx->heap.front;
adamc@323	1097
adamc@323	1098 uw_check_heap(ctx, sizeof(regions));
adamc@323	1099
adamc@666	1100 ctx->heap.front += sizeof(regions);
adamc@323	1101
adamc@323	1102 r->next = ctx->regions;
adamc@323	1103 ctx->regions = r;
adamc@323	1104 }
adamc@323	1105
adamc@323	1106 void uw_end_region(uw_context ctx) {
adamc@323	1107 regions *r = ctx->regions;
adamc@323	1108
adamc@323	1109 if (r == NULL)
adamc@323	1110 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1111
adamc@666	1112 ctx->heap.front = (char *) r;
adamc@323	1113 ctx->regions = r->next;
adamc@323	1114 }
adamc@323	1115
adamc@324	1116 void uw_memstats(uw_context ctx) {
adamc@666	1117 printf("Headers: %d/%d\n", buf_used(&ctx->outHeaders), buf_avail(&ctx->outHeaders));
adamc@666	1118 printf("Script: %d/%d\n", buf_used(&ctx->script), buf_avail(&ctx->script));
adamc@666	1119 printf("Page: %d/%d\n", buf_used(&ctx->page), buf_avail(&ctx->page));
adamc@666	1120 printf("Heap: %d/%d\n", buf_used(&ctx->heap), buf_avail(&ctx->heap));
adamc@324	1121 }
adamc@324	1122
adamc@311	1123 int uw_send(uw_context ctx, int sock) {
adamc@666	1124 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462	1125
adamc@462	1126 if (n < 0)
adamc@462	1127 return n;
adamc@462	1128
adamc@462	1129 n = uw_really_send(sock, "\r\n", 2);
adamc@462	1130
adamc@462	1131 if (n < 0)
adamc@462	1132 return n;
adamc@462	1133
adamc@666	1134 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462	1135 }
adamc@462	1136
adamc@856	1137 int uw_print(uw_context ctx, int fd) {
adamc@856	1138 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1139
adamc@856	1140 if (n < 0)
adamc@856	1141 return n;
adamc@856	1142
adamc@856	1143 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1144
adamc@856	1145 if (n < 0)
adamc@856	1146 return n;
adamc@856	1147
adamc@856	1148 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1149 }
adamc@856	1150
adamc@860	1151 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1152 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1153
adamc@860	1154 if (n < 0)
adamc@860	1155 return n;
adamc@860	1156
adamc@860	1157 n = output(data, "\r\n", 2);
adamc@860	1158
adamc@860	1159 if (n < 0)
adamc@860	1160 return n;
adamc@860	1161
adamc@860	1162 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1163 }
adamc@860	1164
adamc@462	1165 static void uw_check_headers(uw_context ctx, size_t extra) {
adamc@667	1166 buf_check(&ctx->outHeaders, extra);
adamc@462	1167 }
adamc@462	1168
adamc@462	1169 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1170 int len = strlen(s);
adamc@462	1171
adamc@462	1172 uw_check_headers(ctx, len + 1);
adamc@666	1173 strcpy(ctx->outHeaders.front, s);
adamc@666	1174 ctx->outHeaders.front += len;
adamc@562	1175 }
adamc@562	1176
adamc@1110	1177 void uw_clear_headers(uw_context ctx) {
adamc@1110	1178 buf_reset(&ctx->outHeaders);
adamc@1110	1179 }
adamc@1110	1180
adamc@562	1181 static void uw_check_script(uw_context ctx, size_t extra) {
adamc@667	1182 buf_check(&ctx->script, extra);
adamc@562	1183 }
adamc@562	1184
adamc@562	1185 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1186 int len = strlen(s);
adamc@562	1187
adamc@562	1188 uw_check_script(ctx, len + 1);
adamc@666	1189 strcpy(ctx->script.front, s);
adamc@666	1190 ctx->script.front += len;
adamc@562	1191 }
adamc@562	1192
adamc@645	1193 const char *uw_Basis_get_script(uw_context ctx, uw_unit u) {
adamc@916	1194 return "<sc>";
adamc@565	1195 }
adamc@565	1196
adamc@695	1197 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1198 if (s[0] == 0)
adamc@695	1199 return "";
adamc@695	1200 else {
adamc@695	1201 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1202 sprintf(r, " onload='%s'", s);
adamc@695	1203 return r;
adamc@695	1204 }
adamc@695	1205 }
adamc@695	1206
adamc@1042	1207 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1208 if (ctx->script_header[0] == 0)
adamc@1042	1209 return "";
adamc@1042	1210 else {
adamc@1042	1211 char *r = uw_malloc(ctx, 22 + strlen(s));
adamc@1042	1212 sprintf(r, " onunload='unload();%s'", s);
adamc@1042	1213 return r;
adamc@1042	1214 }
adamc@1042	1215 }
adamc@1042	1216
adamc@694	1217 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1218 if (ctx->client == NULL) {
adamc@736	1219 if (ctx->needs_sig) {
adamc@1094	1220 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1221 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1222 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1223 return r;
adamc@736	1224 }
adamc@736	1225 else
adamc@736	1226 return "";
adamc@736	1227 } else {
adamc@1094	1228 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1229 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1230 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adamc@736	1231 sprintf(r, "client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adamc@682	1232 ctx->client->id,
adamc@682	1233 ctx->client->pass,
adamc@1094	1234 ctx->app->url_prefix,
adamc@1094	1235 ctx->app->timeout,
adamc@736	1236 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1237 sig,
adamc@736	1238 ctx->needs_sig ? "\";" : "");
adamc@679	1239 return r;
adamc@668	1240 }
adamc@667	1241 }
adamc@667	1242
adamc@574	1243 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1244 char r, s2;
adamc@574	1245
adamc@574	1246 uw_check_heap(ctx, strlen(s) * 4 + 2);
adamc@574	1247
adamc@666	1248 r = s2 = ctx->heap.front;
adamc@574	1249 *s2++ = '"';
adamc@574	1250
adamc@574	1251 for (; *s; s++) {
adamc@574	1252 char c = *s;
adamc@574	1253
adamc@574	1254 switch (c) {
adamc@574	1255 case '"':
adamc@574	1256 strcpy(s2, "\\\"");
adamc@574	1257 s2 += 2;
adamc@574	1258 break;
adamc@1027	1259 case '\'':
adamc@1027	1260 strcpy(s2, "\\047");
adamc@1027	1261 s2 += 4;
adamc@1027	1262 break;
adamc@574	1263 case '\\':
adamc@574	1264 strcpy(s2, "\\\\");
adamc@574	1265 s2 += 2;
adamc@574	1266 break;
adamc@574	1267 default:
adamc@574	1268 if (isprint(c))
adamc@574	1269 *s2++ = c;
adamc@574	1270 else {
adamc@574	1271 sprintf(s2, "\\%3o", c);
adamc@574	1272 s2 += 4;
adamc@574	1273 }
adamc@574	1274 }
adamc@574	1275 }
adamc@574	1276
adamc@574	1277 strcpy(s2, "\"");
adamc@910	1278 ctx->heap.front = s2 + 2;
adamc@574	1279 return r;
adamc@574	1280 }
adamc@574	1281
adamc@1025	1282 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1025	1283 char r, s2;
adamc@1025	1284
adamc@1025	1285 uw_check_heap(ctx, 6);
adamc@1025	1286
adamc@1025	1287 r = s2 = ctx->heap.front;
adamc@1025	1288 *s2++ = '"';
adamc@1025	1289
adamc@1025	1290 switch (c) {
adamc@1025	1291 case '"':
adamc@1025	1292 strcpy(s2, "\\\"");
adamc@1025	1293 s2 += 2;
adamc@1025	1294 break;
adamc@1027	1295 case '\'':
adamc@1027	1296 strcpy(s2, "\\047");
adamc@1027	1297 s2 += 4;
adamc@1027	1298 break;
adamc@1025	1299 case '\\':
adamc@1025	1300 strcpy(s2, "\\\\");
adamc@1025	1301 s2 += 2;
adamc@1025	1302 break;
adamc@1025	1303 default:
adamc@1025	1304 if (isprint(c))
adamc@1025	1305 *s2++ = c;
adamc@1025	1306 else {
adamc@1025	1307 sprintf(s2, "\\%3o", c);
adamc@1025	1308 s2 += 4;
adamc@1025	1309 }
adamc@1025	1310 }
adamc@1025	1311
adamc@1025	1312 strcpy(s2, "\"");
adamc@1025	1313 ctx->heap.front = s2 + 2;
adamc@1025	1314 return r;
adamc@1025	1315 }
adamc@1025	1316
adamc@574	1317 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1318 char r, s2;
adamc@574	1319
adamc@574	1320 uw_check_script(ctx, strlen(s) * 4 + 2);
adamc@574	1321
adamc@666	1322 r = s2 = ctx->script.front;
adamc@574	1323 *s2++ = '"';
adamc@574	1324
adamc@574	1325 for (; *s; s++) {
adamc@574	1326 char c = *s;
adamc@574	1327
adamc@574	1328 switch (c) {
adamc@577	1329 case '\'':
adamc@1027	1330 strcpy(s2, "\\");
adamc@574	1331 s2 += 2;
adamc@574	1332 break;
adamc@574	1333 case '\\':
adamc@574	1334 strcpy(s2, "\\\\");
adamc@574	1335 s2 += 2;
adamc@574	1336 break;
adamc@574	1337 default:
adamc@574	1338 if (isprint(c))
adamc@574	1339 *s2++ = c;
adamc@574	1340 else {
adamc@574	1341 sprintf(s2, "\\%3o", c);
adamc@574	1342 s2 += 4;
adamc@574	1343 }
adamc@574	1344 }
adamc@574	1345 }
adamc@574	1346
adamc@574	1347 strcpy(s2, "\"");
adamc@666	1348 ctx->script.front = s2 + 1;
adamc@574	1349 return r;
adamc@574	1350 }
adamc@574	1351
adamc@682	1352 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1353 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1354 return "null";
adamc@682	1355 else {
adamc@682	1356 int len;
adamc@682	1357 char *r;
adamc@682	1358
adamc@682	1359 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1360 r = ctx->heap.front;
adamc@682	1361 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1362 ctx->heap.front += len+1;
adamc@682	1363 return r;
adamc@682	1364 }
adamc@682	1365 }
adamc@682	1366
adamc@577	1367 uw_Basis_int uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1368 int len;
adamc@577	1369 size_t s_len = strlen(s);
adamc@562	1370
adamc@970	1371 uw_check_script(ctx, 18 + INTS_MAX + s_len);
adamc@970	1372 sprintf(ctx->script.front, "var s%d=sc(exec(%n", ctx->source_count, &len);
adamc@666	1373 ctx->script.front += len;
adamc@666	1374 strcpy(ctx->script.front, s);
adamc@666	1375 ctx->script.front += s_len;
adamc@970	1376 strcpy(ctx->script.front, "));");
adamc@972	1377 ctx->script.front += 3;
adamc@562	1378
adamc@565	1379 return ctx->source_count++;
adamc@117	1380 }
adamc@117	1381
adamc@577	1382 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_int n, uw_Basis_string s) {
adamc@577	1383 int len;
adamc@577	1384 size_t s_len = strlen(s);
adamc@577	1385
adamc@970	1386 uw_check_script(ctx, 12 + INTS_MAX + s_len);
adamc@970	1387 sprintf(ctx->script.front, "sv(s%d,exec(%n", (int)n, &len);
adamc@666	1388 ctx->script.front += len;
adamc@666	1389 strcpy(ctx->script.front, s);
adamc@666	1390 ctx->script.front += s_len;
adamc@970	1391 strcpy(ctx->script.front, "));");
adamc@972	1392 ctx->script.front += 3;
adamc@577	1393
adamc@577	1394 return uw_unit_v;
adamc@577	1395 }
adamc@577	1396
adamc@311	1397 static void uw_check(uw_context ctx, size_t extra) {
adamc@667	1398 buf_check(&ctx->page, extra);
adamc@117	1399 }
adamc@117	1400
adamc@311	1401 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1402 *(ctx->page.front)++ = c;
adamc@117	1403 }
adamc@117	1404
adamc@311	1405 void uw_writec(uw_context ctx, char c) {
adamc@311	1406 uw_check(ctx, 1);
adamc@311	1407 uw_writec_unsafe(ctx, c);
adamc@117	1408 }
adamc@117	1409
adamc@311	1410 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1411 int len = strlen(s);
adamc@666	1412 memcpy(ctx->page.front, s, len);
adamc@666	1413 ctx->page.front += len;
adamc@117	1414 }
adamc@117	1415
adamc@311	1416 void uw_write(uw_context ctx, const char* s) {
adamc@311	1417 uw_check(ctx, strlen(s) + 1);
adamc@311	1418 uw_write_unsafe(ctx, s);
adamc@666	1419 *ctx->page.front = 0;
adamc@102	1420 }
adamc@106	1421
adamc@311	1422 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1423 char *result;
adamc@136	1424 int len;
adamc@311	1425 uw_check_heap(ctx, INTS_MAX);
adamc@666	1426 result = ctx->heap.front;
adamc@276	1427 sprintf(result, "%lld%n", n, &len);
adamc@666	1428 ctx->heap.front += len+1;
adamc@136	1429 return result;
adamc@106	1430 }
adamc@106	1431
adamc@311	1432 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1433 char *result;
adamc@136	1434 int len;
adamc@311	1435 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1436 result = ctx->heap.front;
adamc@136	1437 sprintf(result, "%g%n", n, &len);
adamc@666	1438 ctx->heap.front += len+1;
adamc@136	1439 return result;
adamc@106	1440 }
adamc@106	1441
adamc@1054	1442 static int isCont(unsigned char ch) {
adamc@1054	1443 return ch / 64 == 2;
adamc@1054	1444 }
adamc@1054	1445
adamc@311	1446 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1447 int len = strlen(s);
adamc@136	1448 char result, p;
adamc@311	1449 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1450
adamc@666	1451 result = p = ctx->heap.front;
adamc@136	1452
adamc@136	1453 for (; *s; s++) {
adamc@1054	1454 unsigned char c = *s;
adamc@136	1455
adamc@136	1456 if (c == '"') {
adamc@136	1457 strcpy(p, """);
adamc@136	1458 p += 6;
adamc@136	1459 } else if (c == '&') {
adamc@136	1460 strcpy(p, "&");
adamc@136	1461 p += 5;
adamc@136	1462 }
adamc@1059	1463 else
adamc@136	1464 *p++ = c;
adamc@136	1465 }
adamc@136	1466
adamc@137	1467 *p++ = 0;
adamc@666	1468 ctx->heap.front = p;
adamc@136	1469 return result;
adamc@106	1470 }
adamc@106	1471
adamc@1011	1472 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1473 char result, p;
adamc@1011	1474 uw_check_heap(ctx, 7);
adamc@1011	1475
adamc@1011	1476 result = p = ctx->heap.front;
adamc@1011	1477
adamc@1011	1478 if (c == '"') {
adamc@1011	1479 strcpy(p, """);
adamc@1011	1480 p += 6;
adamc@1011	1481 } else if (c == '&') {
adamc@1011	1482 strcpy(p, "&");
adamc@1011	1483 p += 5;
adamc@1011	1484 }
adamc@1059	1485 else
adamc@1011	1486 *p++ = c;
adamc@1011	1487
adamc@1011	1488 *p++ = 0;
adamc@1011	1489 ctx->heap.front = p;
adamc@1011	1490 return result;
adamc@1011	1491 }
adamc@1011	1492
adamc@721	1493 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1494 return s;
adamc@721	1495 }
adamc@721	1496
adamc@311	1497 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1498 int len;
adamc@117	1499
adamc@666	1500 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1501 ctx->page.front += len;
adamc@106	1502 }
adamc@106	1503
adamc@428	1504 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1505 uw_check(ctx, INTS_MAX);
adamc@311	1506 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1507
adamc@428	1508 return uw_unit_v;
adamc@106	1509 }
adamc@106	1510
adamc@428	1511 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1512 int len;
adamc@117	1513
adamc@311	1514 uw_check(ctx, FLOATS_MAX);
adamc@666	1515 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1516 ctx->page.front += len;
adamc@428	1517
adamc@428	1518 return uw_unit_v;
adamc@117	1519 }
adamc@117	1520
adamc@428	1521 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1522 uw_check(ctx, strlen(s) * 6);
adamc@117	1523
adamc@106	1524 for (; *s; s++) {
adamc@1054	1525 unsigned char c = *s;
adamc@106	1526
adamc@106	1527 if (c == '"')
adamc@311	1528 uw_write_unsafe(ctx, """);
adamc@136	1529 else if (c == '&')
adamc@311	1530 uw_write_unsafe(ctx, "&");
adamc@1059	1531 else
adamc@311	1532 uw_writec_unsafe(ctx, c);
adamc@106	1533 }
adamc@428	1534
adamc@428	1535 return uw_unit_v;
adamc@106	1536 }
adamc@120	1537
adamc@1011	1538 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1539 uw_check(ctx, 6);
adamc@1011	1540
adamc@1011	1541 if (c == '"')
adamc@1011	1542 uw_write_unsafe(ctx, """);
adamc@1011	1543 else if (c == '&')
adamc@1011	1544 uw_write_unsafe(ctx, "&");
adamc@1059	1545 else
adamc@1011	1546 uw_writec_unsafe(ctx, c);
adamc@1011	1547
adamc@1011	1548 return uw_unit_v;
adamc@1011	1549 }
adamc@1011	1550
adamc@120	1551
adamc@311	1552 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1553 int len;
adamc@137	1554 char *r;
adamc@137	1555
adamc@311	1556 uw_check_heap(ctx, INTS_MAX);
adamc@666	1557 r = ctx->heap.front;
adamc@276	1558 sprintf(r, "%lld%n", n, &len);
adamc@666	1559 ctx->heap.front += len+1;
adamc@137	1560 return r;
adamc@120	1561 }
adamc@120	1562
adamc@682	1563 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1564 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1565 return "";
adamc@682	1566 else {
adamc@682	1567 int len;
adamc@682	1568 char *r;
adamc@679	1569
adamc@682	1570 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1571 r = ctx->heap.front;
adamc@682	1572 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1573 ctx->heap.front += len+1;
adamc@682	1574 return r;
adamc@682	1575 }
adamc@679	1576 }
adamc@679	1577
adamc@311	1578 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1579 int len;
adamc@137	1580 char *r;
adamc@137	1581
adamc@311	1582 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1583 r = ctx->heap.front;
adamc@137	1584 sprintf(r, "%g%n", n, &len);
adamc@666	1585 ctx->heap.front += len+1;
adamc@137	1586 return r;
adamc@120	1587 }
adamc@120	1588
adamc@311	1589 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1590 char r, p;
adamc@137	1591
adamc@925	1592 if (s[0] == '\0')
adamc@925	1593 return "_";
adamc@925	1594
adamc@925	1595 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1596
adamc@925	1597 r = p = ctx->heap.front;
adamc@925	1598 if (s[0] == '_')
adamc@925	1599 *p++ = '_';
adamc@925	1600
adamc@925	1601 for (; *s; s++) {
adamc@1087	1602 unsigned char c = *s;
adamc@137	1603
adamc@137	1604 if (c == ' ')
adamc@137	1605 *p++ = '+';
adamc@137	1606 else if (isalnum(c))
adamc@137	1607 *p++ = c;
adamc@137	1608 else {
adamc@137	1609 sprintf(p, "%%%02X", c);
adamc@137	1610 p += 3;
adamc@137	1611 }
adamc@137	1612 }
adamc@137	1613
adamc@137	1614 *p++ = 0;
adamc@666	1615 ctx->heap.front = p;
adamc@137	1616 return r;
adamc@120	1617 }
adamc@120	1618
adamc@311	1619 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1620 if (b == uw_Basis_False)
adamc@186	1621 return "0";
adamc@186	1622 else
adamc@186	1623 return "1";
adamc@186	1624 }
adamc@186	1625
adamc@311	1626 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1627 int len;
adamc@120	1628
adamc@666	1629 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1630 ctx->page.front += len;
adamc@120	1631 }
adamc@120	1632
adamc@428	1633 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1634 uw_check(ctx, INTS_MAX);
adamc@311	1635 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1636
adamc@428	1637 return uw_unit_v;
adamc@120	1638 }
adamc@120	1639
adamc@682	1640 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1641 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1642 int len;
adamc@682	1643
adamc@682	1644 uw_check(ctx, INTS_MAX + 1);
adamc@682	1645 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1646 ctx->page.front += len;
adamc@682	1647 }
adamc@682	1648
adamc@679	1649 return uw_unit_v;
adamc@679	1650 }
adamc@679	1651
adamc@428	1652 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1653 int len;
adamc@120	1654
adamc@311	1655 uw_check(ctx, FLOATS_MAX);
adamc@666	1656 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1657 ctx->page.front += len;
adamc@428	1658
adamc@428	1659 return uw_unit_v;
adamc@120	1660 }
adamc@120	1661
adamc@488	1662 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@488	1663 return uw_Basis_urlifyInt(ctx, t);
adamc@488	1664 }
adamc@488	1665
adamc@428	1666 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1667 if (s[0] == '\0') {
adamc@925	1668 uw_check(ctx, 1);
adamc@925	1669 uw_writec_unsafe(ctx, '_');
adamc@925	1670 return uw_unit_v;
adamc@925	1671 }
adamc@925	1672
adamc@925	1673 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1674
adamc@925	1675 if (s[0] == '_')
adamc@925	1676 uw_writec_unsafe(ctx, '_');
adamc@120	1677
adamc@120	1678 for (; *s; s++) {
adamc@1087	1679 unsigned char c = *s;
adamc@120	1680
adamc@120	1681 if (c == ' ')
adamc@311	1682 uw_writec_unsafe(ctx, '+');
adamc@120	1683 else if (isalnum(c))
adamc@311	1684 uw_writec_unsafe(ctx, c);
adamc@120	1685 else {
adamc@666	1686 sprintf(ctx->page.front, "%%%02X", c);
adamc@666	1687 ctx->page.front += 3;
adamc@120	1688 }
adamc@120	1689 }
adamc@428	1690
adamc@428	1691 return uw_unit_v;
adamc@120	1692 }
adamc@120	1693
adamc@428	1694 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1695 if (b == uw_Basis_False)
adamc@311	1696 uw_writec(ctx, '0');
adamc@186	1697 else
adamc@311	1698 uw_writec(ctx, '1');
adamc@428	1699
adamc@428	1700 return uw_unit_v;
adamc@186	1701 }
adamc@186	1702
adamc@120	1703
adamc@311	1704 static char uw_unurlify_advance(char s) {
adamc@144	1705 char *new_s = strchr(s, '/');
adamc@120	1706
adamc@120	1707 if (new_s)
adamc@120	1708 *new_s++ = 0;
adamc@120	1709 else
adamc@144	1710 new_s = strchr(s, 0);
adamc@144	1711
adamc@144	1712 return new_s;
adamc@144	1713 }
adamc@144	1714
adamc@311	1715 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1716 char new_s = uw_unurlify_advance(s);
adamc@311	1717 uw_Basis_int r;
adamc@120	1718
adamc@276	1719 r = atoll(*s);
adamc@120	1720 *s = new_s;
adamc@120	1721 return r;
adamc@120	1722 }
adamc@120	1723
adamc@311	1724 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1725 char new_s = uw_unurlify_advance(s);
adamc@311	1726 uw_Basis_float r;
adamc@120	1727
adamc@120	1728 r = atof(*s);
adamc@120	1729 *s = new_s;
adamc@120	1730 return r;
adamc@120	1731 }
adamc@120	1732
adamc@488	1733 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adamc@488	1734 return uw_Basis_unurlifyInt(ctx, s);
adamc@488	1735 }
adamc@488	1736
adamc@1023	1737 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1738 char s1, s2 = s;
adamc@144	1739 int n;
adamc@136	1740
adamc@1023	1741 if (!fromClient) {
adamc@1023	1742 if (*s2 == '_')
adamc@1023	1743 ++s2;
adamc@1023	1744 else if (s2[0] == '%' && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1745 s2 += 3;
adamc@1023	1746 }
adamc@925	1747
adamc@927	1748 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	1749 unsigned char c = *s2;
adamc@136	1750
adamc@136	1751 switch (c) {
adamc@136	1752 case '+':
adamc@136	1753 *s1 = ' ';
adamc@136	1754 break;
adamc@136	1755 case '%':
adamc@169	1756 if (s2[1] == 0)
adamc@311	1757 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1758 if (s2[2] == 0)
adamc@311	1759 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1760 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@311	1761 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@136	1762 *s1 = n;
adamc@136	1763 s2 += 2;
adamc@136	1764 break;
adamc@136	1765 default:
adamc@136	1766 *s1 = c;
adamc@136	1767 }
adamc@136	1768 }
adamc@136	1769 *s1++ = 0;
adamc@144	1770 return s1;
adamc@144	1771 }
adamc@144	1772
adamc@311	1773 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	1774 char new_s = uw_unurlify_advance(s);
adamc@311	1775 uw_Basis_bool r;
adamc@186	1776
adamc@186	1777 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	1778 r = uw_Basis_False;
adamc@186	1779 else
adamc@311	1780 r = uw_Basis_True;
adamc@186	1781
adamc@186	1782 *s = new_s;
adamc@186	1783 return r;
adamc@186	1784 }
adamc@186	1785
adamc@311	1786 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	1787 char new_s = uw_unurlify_advance(s);
adamc@144	1788 char r, s1, *s2;
adamc@144	1789 int len, n;
adamc@144	1790
adamc@200	1791 len = strlen(*s);
adamc@311	1792 uw_check_heap(ctx, len + 1);
adamc@144	1793
adamc@666	1794 r = ctx->heap.front;
adamc@1023	1795 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	1796 *s = new_s;
adamc@1023	1797 return r;
adamc@1023	1798 }
adamc@1023	1799
adamc@1109	1800 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	1801 s = uw_unurlify_advance(s);
adamc@1109	1802 return uw_unit_v;
adamc@1109	1803 }
adamc@1109	1804
adamc@1023	1805 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	1806 char new_s = uw_unurlify_advance(s);
adamc@1023	1807 char r, s1, *s2;
adamc@1023	1808 int len, n;
adamc@1023	1809
adamc@1023	1810 len = strlen(*s);
adamc@1023	1811 uw_check_heap(ctx, len + 1);
adamc@1023	1812
adamc@1023	1813 r = ctx->heap.front;
adamc@1023	1814 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	1815 *s = new_s;
adamc@136	1816 return r;
adamc@120	1817 }
adamc@135	1818
adamc@135	1819
adamc@311	1820 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	1821 int len;
adamc@286	1822 char *r;
adamc@286	1823
adamc@311	1824 uw_check_heap(ctx, INTS_MAX);
adamc@666	1825 r = ctx->heap.front;
adamc@286	1826 sprintf(r, "%lld%n", n, &len);
adamc@666	1827 ctx->heap.front += len+1;
adamc@286	1828 return r;
adamc@286	1829 }
adamc@286	1830
adamc@428	1831 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	1832 int len;
adamc@286	1833
adamc@311	1834 uw_check(ctx, INTS_MAX);
adamc@666	1835 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1836 ctx->page.front += len;
adamc@428	1837
adamc@428	1838 return uw_unit_v;
adamc@286	1839 }
adamc@286	1840
adamc@311	1841 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	1842 int len;
adamc@286	1843 char *r;
adamc@286	1844
adamc@311	1845 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1846 r = ctx->heap.front;
adamc@286	1847 sprintf(r, "%g%n", n, &len);
adamc@666	1848 ctx->heap.front += len+1;
adamc@286	1849 return r;
adamc@286	1850 }
adamc@286	1851
adamc@428	1852 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	1853 int len;
adamc@286	1854
adamc@311	1855 uw_check(ctx, FLOATS_MAX);
adamc@666	1856 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1857 ctx->page.front += len;
adamc@428	1858
adamc@428	1859 return uw_unit_v;
adamc@286	1860 }
adamc@286	1861
adamc@311	1862 char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1863 char r, s2;
adamc@137	1864
adamc@311	1865 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	1866
adamc@666	1867 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	1868 unsigned char c = *s;
adamc@137	1869
adamc@137	1870 switch (c) {
adamc@137	1871 case '<':
adamc@137	1872 strcpy(s2, "<");
adamc@137	1873 s2 += 4;
adamc@137	1874 break;
adamc@137	1875 case '&':
adamc@137	1876 strcpy(s2, "&");
adamc@137	1877 s2 += 5;
adamc@137	1878 break;
adamc@137	1879 default:
adamc@1059	1880 *s2++ = c;
adamc@137	1881 }
adamc@137	1882 }
adamc@137	1883
adamc@137	1884 *s2++ = 0;
adamc@666	1885 ctx->heap.front = s2;
adamc@137	1886 return r;
adamc@135	1887 }
adamc@135	1888
adamc@428	1889 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	1890 uw_check(ctx, strlen(s) * 6);
adamc@135	1891
adamc@135	1892 for (; *s; s++) {
adamc@1054	1893 unsigned char c = *s;
adamc@135	1894
adamc@135	1895 switch (c) {
adamc@135	1896 case '<':
adamc@311	1897 uw_write_unsafe(ctx, "<");
adamc@135	1898 break;
adamc@135	1899 case '&':
adamc@311	1900 uw_write_unsafe(ctx, "&");
adamc@135	1901 break;
adamc@135	1902 default:
adamc@1059	1903 uw_writec_unsafe(ctx, c);
adamc@135	1904 }
adamc@135	1905 }
adamc@428	1906
adamc@428	1907 return uw_unit_v;
adamc@135	1908 }
adamc@180	1909
adamc@311	1910 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1911 if (b == uw_Basis_False)
adamc@286	1912 return "False";
adamc@286	1913 else
adamc@286	1914 return "True";
adamc@286	1915 }
adamc@286	1916
adamc@428	1917 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1918 if (b == uw_Basis_False) {
adamc@311	1919 uw_check(ctx, 6);
adamc@666	1920 strcpy(ctx->page.front, "False");
adamc@666	1921 ctx->page.front += 5;
adamc@286	1922 } else {
adamc@311	1923 uw_check(ctx, 5);
adamc@666	1924 strcpy(ctx->page.front, "True");
adamc@666	1925 ctx->page.front += 4;
adamc@286	1926 }
adamc@428	1927
adamc@428	1928 return uw_unit_v;
adamc@286	1929 }
adamc@286	1930
adamc@436	1931 #define TIME_FMT "%x %X"
adamc@438	1932 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436	1933
adamc@436	1934 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436	1935 size_t len;
adamc@436	1936 char *r;
adamc@436	1937 struct tm stm;
adamc@436	1938
adamc@436	1939 if (localtime_r(&t, &stm)) {
adamc@436	1940 uw_check_heap(ctx, TIMES_MAX);
adamc@666	1941 r = ctx->heap.front;
adamc@436	1942 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	1943 ctx->heap.front += len+1;
adamc@436	1944 return r;
adamc@436	1945 } else
adamc@436	1946 return "<i>Invalid time</i>";
adamc@436	1947 }
adamc@436	1948
adamc@436	1949 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436	1950 size_t len;
adamc@436	1951 char *r;
adamc@436	1952 struct tm stm;
adamc@436	1953
adamc@436	1954 if (localtime_r(&t, &stm)) {
adamc@436	1955 uw_check(ctx, TIMES_MAX);
adamc@666	1956 r = ctx->page.front;
adamc@436	1957 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	1958 ctx->page.front += len;
adamc@436	1959 } else {
adamc@436	1960 uw_check(ctx, 20);
adamc@666	1961 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666	1962 ctx->page.front += 19;
adamc@436	1963 }
adamc@436	1964
adamc@436	1965 return uw_unit_v;
adamc@436	1966 }
adamc@436	1967
adamc@821	1968 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	1969 if (n >= 0 && n < strlen(s))
adamc@821	1970 return s[n];
adamc@821	1971 else
adamc@821	1972 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adamc@821	1973 }
adamc@821	1974
adamc@821	1975 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	1976 if (n >= 0 && n < strlen(s))
adamc@821	1977 return &s[n];
adamc@821	1978 else
adamc@821	1979 uw_error(ctx, FATAL, "Out-of-bounds strsuffix");
adamc@821	1980 }
adamc@821	1981
adamc@828	1982 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	1983 return strlen(s);
adamc@828	1984 }
adamc@828	1985
adamc@829	1986 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	1987 return strchr(s, ch);
adamc@829	1988 }
adamc@829	1989
adamc@831	1990 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	1991 return strcspn(s, chs);
adamc@831	1992 }
adamc@831	1993
adamc@829	1994 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	1995 uw_Basis_string r = strchr(s, ch);
adamc@829	1996 if (r == NULL)
adamc@829	1997 return NULL;
adamc@829	1998 else {
adamc@829	1999 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2000 *nr = r - s;
adamc@829	2001 return nr;
adamc@829	2002 }
adamc@829	2003 }
adamc@829	2004
adamc@311	2005 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2006 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2007 char *s;
adamc@180	2008
adamc@311	2009 uw_check_heap(ctx, len);
adamc@180	2010
adamc@666	2011 s = ctx->heap.front;
adamc@180	2012
adamc@180	2013 strcpy(s, s1);
adamc@180	2014 strcat(s, s2);
adamc@666	2015 ctx->heap.front += len;
adamc@180	2016
adamc@180	2017 return s;
adamc@180	2018 }
adamc@278	2019
adamc@829	2020 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2021 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2022
adamc@829	2023 if (start < 0)
adamc@829	2024 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2025 if (len < 0)
adamc@829	2026 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2027 if (start + len > full_len)
adamc@829	2028 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2029
adamc@829	2030 if (start + len == full_len)
adamc@829	2031 return &s[start];
adamc@829	2032 else {
adamc@829	2033 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2034 memcpy(r, s+start, len);
adamc@829	2035 r[len] = 0;
adamc@829	2036 return r;
adamc@829	2037 }
adamc@829	2038
adamc@829	2039 }
adamc@829	2040
adamc@1023	2041 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2042 char *r;
adamc@1023	2043
adamc@1023	2044 uw_check_heap(ctx, 2);
adamc@1023	2045 r = ctx->heap.front;
adamc@1023	2046 r[0] = ch;
adamc@1023	2047 r[1] = 0;
adamc@1023	2048
adamc@1023	2049 ctx->heap.front += 2;
adamc@1023	2050
adamc@1023	2051 return r;
adamc@1023	2052 }
adamc@1023	2053
adamc@737	2054 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2055 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2056 char *s;
adamc@278	2057
adamc@311	2058 uw_check_heap(ctx, len);
adamc@278	2059
adamc@666	2060 s = ctx->heap.front;
adamc@278	2061
adamc@278	2062 strcpy(s, s1);
adamc@666	2063 ctx->heap.front += len;
adamc@278	2064
adamc@278	2065 return s;
adamc@278	2066 }
adamc@280	2067
adamc@737	2068 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2069 if (s1)
adamc@737	2070 return uw_strdup(ctx, s1);
adamc@493	2071 else
adamc@493	2072 return NULL;
adamc@493	2073 }
adamc@493	2074
adamc@742	2075 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2076 char *r = uw_malloc(ctx, len);
adamc@742	2077 memcpy(r, p, len);
adamc@742	2078 return r;
adamc@742	2079 }
adamc@280	2080
adamc@879	2081 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2082
adamc@311	2083 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2084 int len;
adamc@281	2085 char *r;
adamc@281	2086
adamc@311	2087 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2088 r = ctx->heap.front;
adamc@879	2089 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2090 ctx->heap.front += len+1;
adamc@281	2091 return r;
adamc@281	2092 }
adamc@281	2093
adamc@467	2094 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2095 if (n == NULL)
adamc@467	2096 return "NULL";
adamc@467	2097 else
adamc@467	2098 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2099 }
adamc@467	2100
adamc@879	2101 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879	2102
adamc@311	2103 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2104 int len;
adamc@281	2105 char *r;
adamc@281	2106
adamc@311	2107 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2108 r = ctx->heap.front;
adamc@879	2109 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2110 ctx->heap.front += len+1;
adamc@281	2111 return r;
adamc@281	2112 }
adamc@281	2113
adamc@467	2114 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2115 if (n == NULL)
adamc@467	2116 return "NULL";
adamc@467	2117 else
adamc@467	2118 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2119 }
adamc@467	2120
adamc@879	2121 int uw_Estrings = 1;
adamc@879	2122 char *uw_sqlsuffixString = "::text";
adamc@1011	2123 char *uw_sqlsuffixChar = "::char";
adamc@281	2124
adamc@311	2125 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2126 char r, s2;
adamc@280	2127
adamc@879	2128 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2129
adamc@666	2130 r = s2 = ctx->heap.front;
adamc@879	2131 if (uw_Estrings)
adamc@879	2132 *s2++ = 'E';
adamc@280	2133 *s2++ = '\'';
adamc@280	2134
adamc@280	2135 for (; *s; s++) {
adamc@280	2136 char c = *s;
adamc@280	2137
adamc@280	2138 switch (c) {
adamc@280	2139 case '\'':
adamc@885	2140 if (uw_Estrings)
adamc@885	2141 strcpy(s2, "\\'");
adamc@885	2142 else
adamc@885	2143 strcpy(s2, "''");
adamc@280	2144 s2 += 2;
adamc@280	2145 break;
adamc@280	2146 case '\\':
adamc@885	2147 if (uw_Estrings) {
adamc@885	2148 strcpy(s2, "\\\\");
adamc@885	2149 s2 += 2;
adamc@885	2150 } else
adamc@885	2151 *s2++ = '\\';
adamc@280	2152 break;
adamc@280	2153 default:
adamc@280	2154 if (isprint(c))
adamc@280	2155 *s2++ = c;
adamc@879	2156 else if (uw_Estrings) {
adamc@737	2157 sprintf(s2, "\\%03o", c);
adamc@280	2158 s2 += 4;
adamc@280	2159 }
adamc@879	2160 else
adamc@879	2161 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280	2162 }
adamc@280	2163 }
adamc@280	2164
adamc@879	2165 *s2++ = '\'';
adamc@879	2166 strcpy(s2, uw_sqlsuffixString);
adamc@879	2167 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2168 return r;
adamc@280	2169 }
adamc@281	2170
adamc@1011	2171 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2172 char r, s2;
adamc@1011	2173
adamc@1011	2174 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2175
adamc@1011	2176 r = s2 = ctx->heap.front;
adamc@1011	2177 if (uw_Estrings)
adamc@1011	2178 *s2++ = 'E';
adamc@1011	2179 *s2++ = '\'';
adamc@1011	2180
adamc@1011	2181 switch (c) {
adamc@1011	2182 case '\'':
adamc@1011	2183 if (uw_Estrings)
adamc@1011	2184 strcpy(s2, "\\'");
adamc@1011	2185 else
adamc@1011	2186 strcpy(s2, "''");
adamc@1011	2187 s2 += 2;
adamc@1011	2188 break;
adamc@1011	2189 case '\\':
adamc@1011	2190 if (uw_Estrings) {
adamc@1011	2191 strcpy(s2, "\\\\");
adamc@1011	2192 s2 += 2;
adamc@1011	2193 } else
adamc@1011	2194 *s2++ = '\\';
adamc@1011	2195 break;
adamc@1011	2196 default:
adamc@1011	2197 if (isprint(c))
adamc@1011	2198 *s2++ = c;
adamc@1011	2199 else if (uw_Estrings) {
adamc@1011	2200 sprintf(s2, "\\%03o", c);
adamc@1011	2201 s2 += 4;
adamc@1011	2202 }
adamc@1011	2203 else
adamc@1011	2204 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2205 }
adamc@1011	2206
adamc@1011	2207 *s2++ = '\'';
adamc@1011	2208 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2209 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2210 return r;
adamc@1011	2211 }
adamc@1011	2212
adamc@879	2213 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2214
adamc@737	2215 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2216 char r, s2;
adamc@737	2217 size_t i;
adamc@737	2218
adamc@879	2219 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737	2220
adamc@737	2221 r = s2 = ctx->heap.front;
adamc@879	2222 if (uw_Estrings)
adamc@879	2223 *s2++ = 'E';
adamc@737	2224 *s2++ = '\'';
adamc@737	2225
adamc@737	2226 for (i = 0; i < b.size; ++i) {
adamc@737	2227 char c = b.data[i];
adamc@737	2228
adamc@737	2229 switch (c) {
adamc@737	2230 case '\'':
adamc@885	2231 if (uw_Estrings)
adamc@885	2232 strcpy(s2, "\\'");
adamc@885	2233 else
adamc@885	2234 strcpy(s2, "''");
adamc@737	2235 s2 += 2;
adamc@737	2236 break;
adamc@737	2237 case '\\':
adamc@885	2238 if (uw_Estrings) {
adamc@885	2239 strcpy(s2, "\\\\\\\\");
adamc@885	2240 s2 += 4;
adamc@885	2241 } else
adamc@885	2242 *s2++ = '\\';
adamc@737	2243 break;
adamc@737	2244 default:
adamc@737	2245 if (isprint(c))
adamc@737	2246 *s2++ = c;
adamc@879	2247 else if (uw_Estrings) {
adamc@737	2248 sprintf(s2, "\\\\%03o", c);
adamc@737	2249 s2 += 5;
adamc@737	2250 }
adamc@879	2251 else
adamc@879	2252 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737	2253 }
adamc@737	2254 }
adamc@737	2255
adamc@879	2256 *s2++ = '\'';
adamc@879	2257 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2258 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2259 return r;
adamc@737	2260 }
adamc@737	2261
adamc@682	2262 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2263 int len;
adamc@682	2264 char *r;
adamc@682	2265 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2266
adamc@682	2267 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2268 r = ctx->heap.front;
adamc@879	2269 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2270 ctx->heap.front += len+1;
adamc@682	2271 return r;
adamc@682	2272 }
adamc@682	2273
adamc@682	2274 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2275 int len;
adamc@682	2276 char *r;
adamc@682	2277 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2278
adamc@682	2279 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2280 r = ctx->heap.front;
adamc@682	2281 sprintf(r, "%lld%n", combo, &len);
adamc@682	2282 ctx->heap.front += len+1;
adamc@682	2283 return r;
adamc@682	2284 }
adamc@682	2285
adamc@879	2286 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2287
adamc@682	2288 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2289 int len;
adamc@682	2290 char *r;
adamc@682	2291
adamc@682	2292 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2293 r = ctx->heap.front;
adamc@879	2294 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2295 ctx->heap.front += len+1;
adamc@682	2296 return r;
adamc@682	2297 }
adamc@682	2298
adamc@682	2299 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2300 int len;
adamc@682	2301 char *r;
adamc@682	2302
adamc@682	2303 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2304 r = ctx->heap.front;
adamc@682	2305 sprintf(r, "%u%n", cli, &len);
adamc@682	2306 ctx->heap.front += len+1;
adamc@682	2307 return r;
adamc@682	2308 }
adamc@682	2309
adamc@467	2310 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2311 if (s == NULL)
adamc@467	2312 return "NULL";
adamc@467	2313 else
adamc@467	2314 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2315 }
adamc@467	2316
adamc@311	2317 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2318 if (b == uw_Basis_False)
adamc@281	2319 return "FALSE";
adamc@281	2320 else
adamc@281	2321 return "TRUE";
adamc@281	2322 }
adamc@282	2323
adamc@467	2324 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2325 if (b == NULL)
adamc@467	2326 return "NULL";
adamc@467	2327 else
adamc@467	2328 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2329 }
adamc@467	2330
adamc@439	2331 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2332 size_t len;
adamc@682	2333 char r, s;
adamc@682	2334 struct tm stm;
adamc@682	2335
adamc@682	2336 if (localtime_r(&t, &stm)) {
adamc@682	2337 s = uw_malloc(ctx, TIMES_MAX);
adamc@995	2338 --stm.tm_hour;
adamc@682	2339 len = strftime(s, TIMES_MAX, TIME_FMT, &stm);
adamc@682	2340 r = uw_malloc(ctx, len + 14);
adamc@682	2341 sprintf(r, "'%s'::timestamp", s);
adamc@682	2342 return r;
adamc@682	2343 } else
adamc@682	2344 return "<Invalid time>";
adamc@682	2345 }
adamc@682	2346
adamc@682	2347 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2348 size_t len;
adamc@439	2349 char *r;
adamc@439	2350 struct tm stm;
adamc@439	2351
adamc@439	2352 if (localtime_r(&t, &stm)) {
adamc@439	2353 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2354 r = ctx->heap.front;
adamc@439	2355 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2356 ctx->heap.front += len+1;
adamc@439	2357 return r;
adamc@439	2358 } else
adamc@439	2359 return "<Invalid time>";
adamc@439	2360 }
adamc@439	2361
adamc@467	2362 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2363 if (t == NULL)
adamc@467	2364 return "NULL";
adamc@467	2365 else
adamc@467	2366 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2367 }
adamc@467	2368
adamc@311	2369 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2370 static uw_Basis_int true = 1;
adamc@311	2371 static uw_Basis_int false = 0;
adamc@282	2372
adamc@311	2373 if (b == uw_Basis_False)
adamc@282	2374 return (char *)&false;
adamc@282	2375 else
adamc@282	2376 return (char *)&true;
adamc@282	2377 }
adamc@284	2378
adamc@311	2379 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2380 int len;
adamc@284	2381 char *r;
adamc@284	2382
adamc@311	2383 uw_check_heap(ctx, INTS_MAX);
adamc@666	2384 r = ctx->heap.front;
adamc@284	2385 sprintf(r, "%lld%n", n, &len);
adamc@666	2386 ctx->heap.front += len+1;
adamc@284	2387 return r;
adamc@284	2388 }
adamc@285	2389
adamc@311	2390 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2391 int len;
adamc@285	2392 char *r;
adamc@285	2393
adamc@311	2394 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2395 r = ctx->heap.front;
adamc@285	2396 sprintf(r, "%g%n", n, &len);
adamc@666	2397 ctx->heap.front += len+1;
adamc@285	2398 return r;
adamc@285	2399 }
adamc@285	2400
adamc@821	2401 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2402 char *r = uw_malloc(ctx, 2);
adamc@821	2403 r[0] = ch;
adamc@821	2404 r[1] = 0;
adamc@821	2405 return r;
adamc@821	2406 }
adamc@821	2407
adamc@311	2408 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2409 if (b == uw_Basis_False)
adamc@285	2410 return "False";
adamc@285	2411 else
adamc@285	2412 return "True";
adamc@285	2413 }
adamc@288	2414
adamc@436	2415 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436	2416 size_t len;
adamc@436	2417 char *r;
adamc@436	2418 struct tm stm;
adamc@436	2419
adamc@436	2420 if (localtime_r(&t, &stm)) {
adamc@436	2421 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2422 r = ctx->heap.front;
adamc@436	2423 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2424 ctx->heap.front += len+1;
adamc@436	2425 return r;
adamc@436	2426 } else
adamc@436	2427 return "<Invalid time>";
adamc@436	2428 }
adamc@288	2429
adamc@311	2430 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2431 char *endptr;
adamc@311	2432 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2433
adamc@288	2434 if (s != '\0' && endptr == '\0') {
adamc@311	2435 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2436 *r = n;
adamc@288	2437 return r;
adamc@288	2438 } else
adamc@288	2439 return NULL;
adamc@288	2440 }
adamc@289	2441
adamc@311	2442 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2443 char *endptr;
adamc@311	2444 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2445
adamc@289	2446 if (s != '\0' && endptr == '\0') {
adamc@311	2447 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2448 *r = n;
adamc@289	2449 return r;
adamc@289	2450 } else
adamc@289	2451 return NULL;
adamc@289	2452 }
adamc@289	2453
adamc@821	2454 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2455 if (s[0] == 0) {
adamc@821	2456 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2457 r[0] = 0;
adamc@821	2458 return r;
adamc@821	2459 } else if (s[1] != 0)
adamc@821	2460 return NULL;
adamc@821	2461 else {
adamc@821	2462 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2463 r[0] = s[0];
adamc@821	2464 return r;
adamc@821	2465 }
adamc@821	2466 }
adamc@821	2467
adamc@311	2468 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2469 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2470 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2471
adamc@289	2472 if (!strcasecmp (s, "True"))
adamc@289	2473 return &true;
adamc@289	2474 else if (!strcasecmp (s, "False"))
adamc@289	2475 return &false;
adamc@289	2476 else
adamc@289	2477 return NULL;
adamc@289	2478 }
adamc@292	2479
adamc@436	2480 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2481 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2482 struct tm stm;
adamc@436	2483
adamc@439	2484 if (dot) {
adamc@439	2485 *dot = 0;
adamc@439	2486 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2487 *dot = '.';
adamc@439	2488 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2489 *r = mktime(&stm);
adamc@439	2490 return r;
adamc@439	2491 }
adamc@439	2492 else {
adamc@439	2493 *dot = '.';
adamc@439	2494 return NULL;
adamc@439	2495 }
adamc@436	2496 }
adamc@439	2497 else {
adamc@439	2498 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2499 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2500 *r = mktime(&stm);
adamc@439	2501 return r;
adamc@439	2502 }
adamc@439	2503 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2504 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2505 *r = mktime(&stm);
adamc@439	2506 return r;
adamc@439	2507 }
adamc@439	2508 else
adamc@439	2509 return NULL;
adamc@439	2510 }
adamc@436	2511 }
adamc@436	2512
adamc@311	2513 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2514 char *endptr;
adamc@311	2515 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2516
adamc@292	2517 if (s != '\0' && endptr == '\0')
adamc@292	2518 return n;
adamc@292	2519 else
adamc@311	2520 uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292	2521 }
adamc@293	2522
adamc@682	2523 #include <errno.h>
adamc@682	2524
adamc@678	2525 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2526 unsigned long long n;
adamc@682	2527
adamc@682	2528 if (sscanf(s, "%llu", &n) < 1)
adamc@682	2529 uw_error(ctx, FATAL, "Can't parse channel: %s", s);
adamc@682	2530 else {
adamc@682	2531 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2532 return ch;
adamc@682	2533 }
adamc@682	2534 }
adamc@682	2535
adamc@682	2536 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2537 char *endptr;
adamc@682	2538 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2539
adamc@678	2540 if (s != '\0' && endptr == '\0')
adamc@678	2541 return n;
adamc@678	2542 else
adamc@682	2543 uw_error(ctx, FATAL, "Can't parse client: %s", s);
adamc@678	2544 }
adamc@678	2545
adamc@311	2546 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2547 char *endptr;
adamc@311	2548 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2549
adamc@293	2550 if (s != '\0' && endptr == '\0')
adamc@293	2551 return n;
adamc@293	2552 else
adamc@311	2553 uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293	2554 }
adamc@293	2555
adamc@821	2556 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2557 if (s[0] == 0)
adamc@821	2558 return 0;
adamc@821	2559 else if (s[1] != 0)
adamc@821	2560 uw_error(ctx, FATAL, "Can't parse char: %s", s);
adamc@821	2561 else
adamc@821	2562 return s[0];
adamc@821	2563 }
adamc@821	2564
adamc@311	2565 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2566 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2567 return uw_Basis_True;
adamc@296	2568 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2569 return uw_Basis_False;
adamc@293	2570 else
adamc@311	2571 uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293	2572 }
adamc@436	2573
adamc@436	2574 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2575 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2576 struct tm stm = {};
adamc@436	2577
adamc@438	2578 if (dot) {
adamc@438	2579 *dot = 0;
adamc@438	2580 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2581 *dot = '.';
adamc@438	2582 return mktime(&stm);
adamc@438	2583 }
adamc@438	2584 else {
adamc@438	2585 *dot = '.';
adamc@438	2586 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2587 }
adamc@438	2588 }
adamc@438	2589 else {
adamc@439	2590 if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439	2591 return mktime(&stm);
adamc@439	2592 else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438	2593 return mktime(&stm);
adamc@438	2594 else
adamc@438	2595 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2596 }
adamc@436	2597 }
adamc@457	2598
adamc@939	2599 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adamc@939	2600 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@939	2601 struct tm stm = {};
adamc@939	2602
adamc@939	2603 if (dot) {
adamc@939	2604 *dot = 0;
adamc@939	2605 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@939	2606 *dot = '.';
adamc@939	2607 return mktime(&stm);
adamc@939	2608 }
adamc@939	2609 else {
adamc@939	2610 *dot = '.';
adamc@939	2611 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2612 }
adamc@939	2613 }
adamc@939	2614 else {
adamc@939	2615 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@939	2616 return mktime(&stm);
adamc@939	2617 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@939	2618 return mktime(&stm);
adamc@939	2619 } else
adamc@939	2620 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2621 }
adamc@939	2622 }
adamc@939	2623
adamc@742	2624 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	2625 char *r = ctx->heap.front;
adamc@742	2626 uw_Basis_blob b = {len, r};
adamc@742	2627
adamc@742	2628 uw_check_heap(ctx, len);
adamc@742	2629
adamc@742	2630 while (*s) {
adamc@742	2631 if (s[0] == '\\') {
adamc@742	2632 if (s[1] == '\\') {
adamc@742	2633 *r++ = '\\';
adamc@742	2634 s += 2;
adamc@742	2635 } else if (isdigit(s[1]) && isdigit(s[2]) && isdigit(s[3])) {
adamc@742	2636 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	2637 s += 4;
adamc@742	2638 }
adamc@742	2639 else {
adamc@742	2640 *r++ = '\\';
adamc@742	2641 ++s;
adamc@742	2642 }
adamc@742	2643 } else {
adamc@742	2644 *r++ = s[0];
adamc@742	2645 ++s;
adamc@742	2646 }
adamc@742	2647 }
adamc@742	2648
adamc@742	2649 b.size = r - ctx->heap.front;
adamc@742	2650 ctx->heap.front = r;
adamc@742	2651 return b;
adamc@742	2652 }
adamc@742	2653
adamc@1052	2654 #define THE_PAST "expires=Mon, 01-01-1970 00:00:00 GMT"
adamc@1052	2655
adamc@463	2656 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	2657 int len = strlen(c);
adamc@854	2658 char *p = ctx->outHeaders.start;
adamc@474	2659
adamc@474	2660 while (p = strstr(p, "\nSet-Cookie: ")) {
adamc@474	2661 char *p2;
adamc@474	2662 p += 13;
adamc@474	2663 p2 = strchr(p, '=');
adamc@474	2664
adamc@474	2665 if (p2) {
adamc@474	2666 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	2667
adamc@474	2668 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	2669 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	2670 return NULL;
adamc@1052	2671 else {
adamc@1052	2672 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	2673 memcpy(ret, p2+1, sz);
adamc@1052	2674 ret[sz] = 0;
adamc@1052	2675 return ret;
adamc@1052	2676 }
adamc@474	2677 }
adamc@474	2678 }
adamc@474	2679 }
adamc@463	2680
adamc@854	2681 if (p = uw_Basis_requestHeader(ctx, "Cookie")) {
adamc@1051	2682 char *p2;
adamc@1051	2683
adamc@854	2684 while (1) {
adamc@1051	2685 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1051	2686 if (p2 = strchr(p, ';')) {
adamc@1051	2687 size_t n = p2 - (p + len);
adamc@1051	2688 char *r = uw_malloc(ctx, n);
adamc@1051	2689 memcpy(r, p + 1 + len, n-1);
adamc@1051	2690 r[n-1] = 0;
adamc@1051	2691 return r;
adamc@1051	2692 } else
adamc@1051	2693 return p + 1 + len;
adamc@1051	2694 } else if (p = strchr(p, ';'))
adamc@854	2695 p += 2;
adamc@463	2696 else
adamc@463	2697 return NULL;
adamc@463	2698 }
adamc@463	2699 }
adamc@792	2700
adamc@792	2701 return NULL;
adamc@457	2702 }
adamc@462	2703
adamc@1050	2704 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	2705 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	2706 uw_write_header(ctx, c);
adamc@462	2707 uw_write_header(ctx, "=");
adamc@462	2708 uw_write_header(ctx, v);
adamc@466	2709 uw_write_header(ctx, "; path=");
adamc@466	2710 uw_write_header(ctx, prefix);
adamc@1050	2711 if (expires) {
adamc@1050	2712 char formatted[30];
adamc@1050	2713 struct tm tm;
adamc@1050	2714
adamc@1050	2715 gmtime_r(expires, &tm);
adamc@1050	2716
adamc@1050	2717 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	2718
adamc@1050	2719 uw_write_header(ctx, "; expires=");
adamc@1050	2720 uw_write_header(ctx, formatted);
adamc@1050	2721 }
adamc@1050	2722 if (secure)
adamc@1050	2723 uw_write_header(ctx, "; secure");
adamc@462	2724 uw_write_header(ctx, "\r\n");
adamc@462	2725
adamc@462	2726 return uw_unit_v;
adamc@462	2727 }
adamc@667	2728
adamc@1050	2729 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	2730 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	2731 uw_write_header(ctx, c);
adamc@1050	2732 uw_write_header(ctx, "=; path=");
adamc@1050	2733 uw_write_header(ctx, prefix);
adamc@1052	2734 uw_write_header(ctx, "; " THE_PAST "\r\n");
adamc@1050	2735
adamc@1050	2736 return uw_unit_v;
adamc@1050	2737 }
adamc@1050	2738
adamc@682	2739 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	2740 unsigned i;
adamc@682	2741 delta *d;
adamc@671	2742
adamc@682	2743 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	2744 if (ctx->deltas[i].client == client)
adamc@682	2745 return &ctx->deltas[i];
adamc@671	2746
adamc@682	2747 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@682	2748 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adamc@682	2749 buf_init(&ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	2750 }
adamc@671	2751
adamc@682	2752 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	2753 d->client = client;
adamc@682	2754 buf_reset(&d->msgs);
adamc@682	2755 return d;
adamc@671	2756 }
adamc@671	2757
adamc@668	2758 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	2759 if (ctx->client == NULL)
adamc@682	2760 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	2761
adamc@682	2762 return new_channel(ctx->client);
adamc@668	2763 }
adamc@668	2764
adamc@668	2765 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	2766 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	2767 size_t len;
adamc@682	2768 int preLen;
adamc@682	2769 char pre[INTS_MAX + 2];
adamc@668	2770
adamc@682	2771 len = strlen(msg);
adamc@682	2772
adamc@682	2773 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	2774
adamc@682	2775 buf_append(&d->msgs, pre, preLen);
adamc@682	2776 buf_append(&d->msgs, msg, len);
adamc@682	2777 buf_append(&d->msgs, "\n", 1);
adamc@671	2778
adamc@671	2779 return uw_unit_v;
adamc@668	2780 }
adamc@671	2781
adamc@671	2782 void uw_commit(uw_context ctx) {
adamc@1104	2783 int i;
adamc@1104	2784
adamc@1104	2785 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	2786 if (ctx->transactionals[i].rollback != NULL)
adamc@1083	2787 if (ctx->transactionals[i].commit)
adamc@1083	2788 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771	2789
adamc@1104	2790 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	2791 if (ctx->transactionals[i].rollback == NULL)
adamc@1083	2792 if (ctx->transactionals[i].commit)
adamc@1083	2793 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771	2794
adamc@1094	2795 if (ctx->app->db_commit(ctx))
adamc@671	2796 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@682	2797
adamc@682	2798 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	2799 delta *d = &ctx->deltas[i];
adamc@682	2800 client *c = find_client(d->client);
adamc@682	2801
adamc@682	2802 assert (c != NULL && c->mode == USED);
adamc@682	2803
adamc@685	2804 client_send(c, &d->msgs);
adamc@682	2805 }
adamc@682	2806
adamc@682	2807 if (ctx->client)
adamc@685	2808 release_client(ctx->client);
adamc@771	2809
adamc@1104	2810 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	2811 if (ctx->transactionals[i].free)
adamc@1083	2812 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@916	2813
adamc@916	2814 // Splice script data into appropriate part of page
adamc@1065	2815 if (ctx->returning_indirectly \|\| ctx->script_header[0] == 0) {
adamc@995	2816 char *start = strstr(ctx->page.start, "<sc>");
adamc@995	2817 if (start) {
adamc@995	2818 memmove(start, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 4);
adamc@995	2819 ctx->page.front -= 4;
adamc@995	2820 }
adamc@995	2821 } else if (buf_used(&ctx->script) == 0) {
adamc@916	2822 size_t len = strlen(ctx->script_header);
adamc@916	2823 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2824 if (start) {
adamc@916	2825 buf_check(&ctx->page, buf_used(&ctx->page) - 4 + len);
adamc@917	2826 start = strstr(ctx->page.start, "<sc>");
adamc@916	2827 memmove(start + len, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2828 ctx->page.front += len - 4;
adamc@916	2829 memcpy(start, ctx->script_header, len);
adamc@916	2830 }
adamc@916	2831 } else {
adamc@916	2832 size_t lenH = strlen(ctx->script_header), len = buf_used(&ctx->script);
adamc@916	2833 size_t lenP = lenH + 40 + len;
adamc@916	2834 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2835 if (start) {
adamc@916	2836 buf_check(&ctx->page, buf_used(&ctx->page) - 4 + lenP);
adamc@917	2837 start = strstr(ctx->page.start, "<sc>");
adamc@916	2838 memmove(start + lenP, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2839 ctx->page.front += lenP - 4;
adamc@916	2840 memcpy(start, ctx->script_header, lenH);
adamc@916	2841 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916	2842 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916	2843 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916	2844 }
adamc@916	2845 }
adamc@671	2846 }
adamc@671	2847
adamc@671	2848 int uw_rollback(uw_context ctx) {
adamc@1104	2849 int i;
adamc@885	2850 cleanup *cl;
adamc@771	2851
adamc@682	2852 if (ctx->client)
adamc@685	2853 release_client(ctx->client);
adamc@671	2854
adamc@885	2855 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@885	2856 cl->func(cl->arg);
adamc@885	2857
adamc@885	2858 ctx->cleanup_front = ctx->cleanup;
adamc@885	2859
adamc@1104	2860 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	2861 if (ctx->transactionals[i].rollback != NULL)
adamc@771	2862 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@771	2863
adamc@1104	2864 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1084	2865 if (ctx->transactionals[i].free)
adamc@1084	2866 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@771	2867
adamc@1094	2868 return ctx->app->db_rollback(ctx);
adamc@671	2869 }
adamc@683	2870
adamc@771	2871 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adamc@771	2872 uw_callback free) {
adamc@771	2873 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1084	2874 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	2875 ++ctx->n_transactionals;
adamc@771	2876 }
adamc@771	2877
adamc@771	2878 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	2879 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	2880 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	2881 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	2882 }
adamc@771	2883
adamc@683	2884
adamc@683	2885 // "Garbage collection"
adamc@683	2886
adamc@683	2887 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli) {
adamc@683	2888 int r = setjmp(ctx->jmp_buf);
adamc@683	2889
adamc@684	2890 if (r == 0) {
adamc@1094	2891 if (ctx->app->db_begin(ctx))
adamc@684	2892 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@1094	2893 ctx->app->expunger(ctx, cli);
adamc@1094	2894 if (ctx->app->db_commit(ctx))
adamc@684	2895 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@684	2896 }
adamc@683	2897
adamc@683	2898 return r;
adamc@683	2899 }
adamc@683	2900
adamc@683	2901 void uw_prune_clients(uw_context ctx) {
adamc@683	2902 client c, next, *prev = NULL;
adamc@683	2903 time_t cutoff;
adamc@683	2904
adamc@1094	2905 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	2906
adamc@683	2907 pthread_mutex_lock(&clients_mutex);
adamc@683	2908
adamc@683	2909 for (c = clients_used; c; c = next) {
adamc@683	2910 next = c->next;
adamc@683	2911 pthread_mutex_lock(&c->lock);
adamc@685	2912 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	2913 failure_kind fk = UNLIMITED_RETRY;
adamc@683	2914 if (prev)
adamc@683	2915 prev->next = next;
adamc@683	2916 else
adamc@683	2917 clients_used = next;
adamc@684	2918 uw_reset(ctx);
adamc@683	2919 while (fk == UNLIMITED_RETRY) {
adamc@683	2920 fk = uw_expunge(ctx, c->id);
adamc@684	2921 if (fk == UNLIMITED_RETRY) {
adamc@1094	2922 ctx->app->db_rollback(ctx);
adamc@684	2923 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	2924 }
adamc@683	2925 }
adamc@684	2926 if (fk == SUCCESS)
adamc@684	2927 free_client(c);
adamc@684	2928 else {
adamc@1094	2929 ctx->app->db_rollback(ctx);
adamc@856	2930 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@684	2931 }
adamc@683	2932 }
adamc@683	2933 else
adamc@683	2934 prev = c;
adamc@683	2935 pthread_mutex_unlock(&c->lock);
adamc@683	2936 }
adamc@683	2937
adamc@683	2938 pthread_mutex_unlock(&clients_mutex);
adamc@683	2939 }
adamc@687	2940
adamc@687	2941 failure_kind uw_initialize(uw_context ctx) {
adamc@687	2942 int r = setjmp(ctx->jmp_buf);
adamc@687	2943
adamc@687	2944 if (r == 0) {
adamc@1094	2945 if (ctx->app->db_begin(ctx))
adamc@687	2946 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@1094	2947 ctx->app->initializer(ctx);
adamc@1094	2948 if (ctx->app->db_commit(ctx))
adamc@687	2949 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	2950 }
adamc@687	2951
adamc@687	2952 return r;
adamc@687	2953 }
adamc@717	2954
adamc@1065	2955 static int url_bad(uw_Basis_string s) {
adamc@1065	2956 for (; *s; ++s)
adamc@1065	2957 if (!isgraph(*s))
adamc@1065	2958 return 1;
adamc@1065	2959
adamc@1065	2960 return 0;
adamc@1065	2961 }
adamc@1065	2962
adamc@717	2963 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	2964 if (url_bad(s))
adamc@1065	2965 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	2966 if (ctx->app->check_url(s))
adamc@770	2967 return s;
adamc@770	2968 else
adamc@770	2969 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	2970 }
adamc@734	2971
adamc@770	2972 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	2973 if (url_bad(s))
adamc@1065	2974 return NULL;
adamc@1094	2975 if (ctx->app->check_url(s))
adamc@770	2976 return s;
adamc@770	2977 else
adamc@770	2978 return NULL;
adamc@770	2979 }
adamc@770	2980
adamc@770	2981 int mime_format(const char *s) {
adamc@770	2982 for (; *s; ++s)
adamc@770	2983 if (!isalnum(s) && s != '/' && s != '-' && s != '.')
adamc@770	2984 return 0;
adamc@770	2985
adamc@770	2986 return 1;
adamc@770	2987 }
adamc@770	2988
adamc@741	2989 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	2990 if (!mime_format(s))
adamc@770	2991 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	2992
adamc@1094	2993 if (ctx->app->check_mime(s))
adamc@770	2994 return s;
adamc@770	2995 else
adamc@770	2996 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	2997 }
adamc@770	2998
adamc@770	2999 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3000 if (!mime_format(s))
adamc@770	3001 return NULL;
adamc@770	3002
adamc@1094	3003 if (ctx->app->check_mime(s))
adamc@770	3004 return s;
adamc@770	3005 else
adamc@770	3006 return NULL;
adamc@741	3007 }
adamc@741	3008
adamc@734	3009 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3010 return s ? s : "";
adamc@734	3011 }
adamc@734	3012
adamc@734	3013 extern int uw_hash_blocksize;
adamc@734	3014
adamc@734	3015 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3016 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3017 int i;
adamc@734	3018
adamc@734	3019 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3020 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3021
adamc@734	3022 return r;
adamc@734	3023 }
adamc@734	3024
adamc@734	3025 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@1094	3026 return ctx->app->cookie_sig(ctx);
adamc@734	3027 }
adamc@737	3028
adamc@737	3029 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3030 return f.name;
adamc@737	3031 }
adamc@737	3032
adamc@740	3033 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3034 return f.type;
adamc@740	3035 }
adamc@740	3036
adamc@745	3037 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3038 return b.size;
adamc@745	3039 }
adamc@745	3040
adamc@737	3041 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3042 return f.data;
adamc@737	3043 }
adamc@741	3044
adamc@741	3045 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3046 cleanup *cl;
adamc@741	3047 int len;
adamc@741	3048
adamc@1065	3049 ctx->returning_indirectly = 1;
adamc@741	3050 buf_reset(&ctx->outHeaders);
adamc@741	3051 buf_reset(&ctx->page);
adamc@741	3052
adamc@856	3053 uw_write_header(ctx, on_success);
adamc@856	3054 uw_write_header(ctx, "Content-Type: ");
adamc@741	3055 uw_write_header(ctx, mimeType);
adamc@741	3056 uw_write_header(ctx, "\r\nContent-Length: ");
adamc@741	3057 buf_check(&ctx->outHeaders, INTS_MAX);
adamc@741	3058 sprintf(ctx->outHeaders.front, "%d%n", b.size, &len);
adamc@741	3059 ctx->outHeaders.front += len;
adamc@1066	3060 uw_write_header(ctx, "\r\n");
adamc@741	3061
adamc@741	3062 buf_append(&ctx->page, b.data, b.size);
adamc@741	3063
adamc@741	3064 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3065 cl->func(cl->arg);
adamc@741	3066
adamc@741	3067 ctx->cleanup_front = ctx->cleanup;
adamc@741	3068
adamc@1065	3069 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3070 }
adamc@1065	3071
adamc@1065	3072 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3073 cleanup *cl;
adamc@1065	3074 int len;
adamc@1066	3075 char *s;
adamc@1065	3076
adamc@1065	3077 ctx->returning_indirectly = 1;
adamc@1066	3078 buf_reset(&ctx->page);
adamc@1066	3079 buf_check(&ctx->page, buf_used(&ctx->outHeaders)+1);
adamc@1066	3080 memcpy(ctx->page.start, ctx->outHeaders.start, buf_used(&ctx->outHeaders));
adamc@1066	3081 ctx->page.start[buf_used(&ctx->outHeaders)] = 0;
adamc@1065	3082 buf_reset(&ctx->outHeaders);
adamc@1065	3083
adamc@1065	3084 uw_write_header(ctx, on_redirect);
adamc@1066	3085
adamc@1066	3086 s = strchr(ctx->page.start, '\n');
adamc@1066	3087 if (s) {
adamc@1066	3088 char *s2;
adamc@1066	3089 for (++s; s2 = strchr(s, '\n'); s = s2+1) {
adamc@1066	3090 *s2 = 0;
adamc@1066	3091 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3092 uw_write_header(ctx, s);
adamc@1066	3093 uw_write_header(ctx, "\n");
adamc@1066	3094 }
adamc@1066	3095 }
adamc@1066	3096 }
adamc@1066	3097
adamc@1065	3098 uw_write_header(ctx, "Location: ");
adamc@1065	3099 uw_write_header(ctx, url);
adamc@1065	3100 uw_write_header(ctx, "\r\n\r\n");
adamc@1065	3101
adamc@1065	3102 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3103 cl->func(cl->arg);
adamc@1065	3104
adamc@1065	3105 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3106
adamc@1065	3107 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3108 }
adamc@874	3109
adamc@874	3110 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adamc@874	3111 uw_Basis_string r = uw_malloc(ctx, strlen(s) + 1);
adamc@874	3112
adamc@874	3113 for (; *s; ++s) {
adamc@874	3114 if (s[0] == '\'') {
adamc@874	3115 *r++ = '\'';
adamc@874	3116 for (++s; *s; ++s) {
adamc@874	3117 if (s[0] == '\'') {
adamc@874	3118 *r++ = '\'';
adamc@874	3119 break;
adamc@874	3120 } else if (s[0] == '\\') {
adamc@874	3121 if (s[1] == '\\') {
adamc@874	3122 *r++ = '\\';
adamc@874	3123 *r++ = '\\';
adamc@874	3124 ++s;
adamc@874	3125 } else if (s[1] == '\'') {
adamc@874	3126 *r++ = '\\';
adamc@874	3127 *r++ = '\'';
adamc@874	3128 ++s;
adamc@874	3129 } else
adamc@874	3130 *r++ = '\'';
adamc@874	3131 } else
adamc@874	3132 *r++ = s[0];
adamc@874	3133 }
adamc@874	3134 if (*s == 0) break;
adamc@874	3135 } else if (s[0] == 'T' && s[1] == '.')
adamc@874	3136 ++s;
adamc@874	3137 else
adamc@874	3138 *r++ = s[0];
adamc@874	3139 }
adamc@874	3140
adamc@874	3141 return r;
adamc@874	3142 }
adamc@874	3143
adamc@922	3144 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3145 va_list ap;
adamc@922	3146 size_t len = 1;
adamc@922	3147 char s, r, *s2;
adamc@922	3148
adamc@922	3149 va_start(ap, ctx);
adamc@922	3150 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3151 len += strlen(s);
adamc@922	3152 va_end(ap);
adamc@922	3153
adamc@922	3154 r = uw_malloc(ctx, len);
adamc@922	3155 va_start(ap, ctx);
adamc@922	3156 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3157 while (*s)
adamc@922	3158 s2++ = s++;
adamc@922	3159 va_end(ap);
adamc@922	3160 *s2 = 0;
adamc@922	3161
adamc@922	3162 return r;
adamc@922	3163 }
adamc@1006	3164
adamc@1050	3165 const uw_Basis_time minTime = 0;
adamc@1050	3166
adamc@1006	3167 uw_Basis_time uw_Basis_now(uw_context ctx) {
adamc@1006	3168 return time(NULL);
adamc@1006	3169 }
adamc@1061	3170
adamc@1061	3171 void uw_get_global(uw_context ctx, char name) {
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@1061	3176 return ctx->globals[i].data;
adamc@1061	3177
adamc@1061	3178 return NULL;
adamc@1061	3179 }
adamc@1061	3180
adamc@1061	3181 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	3182 int i;
adamc@1061	3183
adamc@1061	3184 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3185 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	3186 if (ctx->globals[i].free)
adamc@1061	3187 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	3188 ctx->globals[i].data = data;
adamc@1061	3189 ctx->globals[i].free = free;
adamc@1061	3190 return;
adamc@1061	3191 }
adamc@1089	3192
adamc@1061	3193 ++ctx->n_globals;
adamc@1061	3194 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	3195 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	3196 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	3197 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	3198 }
adamc@1061	3199
adamc@1061	3200 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1063	3201 return !!isalnum(c);
adamc@1061	3202 }
adamc@1061	3203
adamc@1061	3204 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1063	3205 return !!isalpha(c);
adamc@1061	3206 }
adamc@1061	3207
adamc@1061	3208 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1063	3209 return !!isblank(c);
adamc@1061	3210 }
adamc@1061	3211
adamc@1061	3212 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1063	3213 return !!iscntrl(c);
adamc@1061	3214 }
adamc@1061	3215
adamc@1061	3216 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1063	3217 return !!isdigit(c);
adamc@1061	3218 }
adamc@1061	3219
adamc@1061	3220 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1063	3221 return !!isgraph(c);
adamc@1061	3222 }
adamc@1061	3223
adamc@1061	3224 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1063	3225 return !!islower(c);
adamc@1061	3226 }
adamc@1061	3227
adamc@1061	3228 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1063	3229 return !!isprint(c);
adamc@1061	3230 }
adamc@1061	3231
adamc@1061	3232 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1063	3233 return !!ispunct(c);
adamc@1061	3234 }
adamc@1061	3235
adamc@1061	3236 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1063	3237 return !!isspace(c);
adamc@1061	3238 }
adamc@1063	3239
adamc@1061	3240 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1063	3241 return !!isupper(c);
adamc@1061	3242 }
adamc@1061	3243
adamc@1061	3244 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1063	3245 return !!isxdigit(c);
adamc@1061	3246 }
adamc@1061	3247
adamc@1061	3248 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1061	3249 return tolower(c);
adamc@1061	3250 }
adamc@1061	3251
adamc@1061	3252 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1061	3253 return toupper(c);
adamc@1061	3254 }
adamc@1066	3255
adamc@1066	3256 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	3257 return ctx->current_url;
adamc@1066	3258 }
adamc@1066	3259
adamc@1066	3260 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	3261 ctx->current_url = s;
adamc@1066	3262 }

Mercurial > urweb

annotate src/c/urweb.c @ 1112:7a31e0cf25e9