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

annotate src/c/urweb.c @ 1072:9001966ae1c8

Weakening-type coercions for SQL values

author	Adam Chlipala <adamc@hcoop.net>
date	Sun, 13 Dec 2009 13:00:55 -0500
parents	50dd937c4cb9
children	2eb585274501

rev	line source
adamc@741	1 #define _XOPEN_SOURCE 500
adamc@436	2
adamc@117	3 #include <stdlib.h>
adamc@102	4 #include <stdio.h>
adamc@117	5 #include <string.h>
adamc@457	6 #include <strings.h>
adamc@106	7 #include <ctype.h>
adamc@167	8 #include <setjmp.h>
adamc@167	9 #include <stdarg.h>
adamc@682	10 #include <assert.h>
adamc@741	11 #include <ctype.h>
adamc@102	12
adamc@667	13 #include <pthread.h>
adamc@667	14
adamc@102	15 #include "types.h"
adamc@102	16
adamc@311	17 uw_unit uw_unit_v = {};
adamc@102	18
adamc@667	19
adamc@667	20 // Socket extras
adamc@667	21
adamc@863	22 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667	23 while (len > 0) {
adamc@856	24 ssize_t n = send(sock, buf, len, 0);
adamc@856	25
adamc@856	26 if (n < 0)
adamc@856	27 return n;
adamc@856	28
adamc@856	29 buf += n;
adamc@856	30 len -= n;
adamc@856	31 }
adamc@856	32
adamc@856	33 return 0;
adamc@856	34 }
adamc@856	35
adamc@856	36 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856	37 while (len > 0) {
adamc@856	38 ssize_t n = write(fd, buf, len);
adamc@667	39
adamc@667	40 if (n < 0)
adamc@667	41 return n;
adamc@667	42
adamc@667	43 buf += n;
adamc@667	44 len -= n;
adamc@667	45 }
adamc@667	46
adamc@667	47 return 0;
adamc@667	48 }
adamc@667	49
adamc@667	50
adamc@667	51 // Buffers
adamc@667	52
adamc@667	53 typedef struct {
adamc@667	54 char start, front, *back;
adamc@667	55 } buf;
adamc@667	56
adamc@667	57 static void buf_init(buf *b, size_t s) {
adamc@667	58 b->front = b->start = malloc(s);
adamc@667	59 b->back = b->front + s;
adamc@667	60 }
adamc@667	61
adamc@667	62 static void buf_free(buf *b) {
adamc@667	63 free(b->start);
adamc@667	64 }
adamc@667	65
adamc@667	66 static void buf_reset(buf *b) {
adamc@667	67 b->front = b->start;
adamc@667	68 }
adamc@667	69
adamc@667	70 static void buf_check(buf *b, size_t extra) {
adamc@667	71 if (b->back - b->front < extra) {
adamc@667	72 size_t desired = b->front - b->start + extra, next;
adamc@667	73 char *new_heap;
adamc@667	74
adamc@667	75 next = b->back - b->start;
adamc@667	76 if (next == 0)
adamc@667	77 next = 1;
adamc@667	78 for (; next < desired; next *= 2);
adamc@667	79
adamc@667	80 new_heap = realloc(b->start, next);
adamc@667	81 b->front = new_heap + (b->front - b->start);
adamc@667	82 b->back = new_heap + next;
adamc@667	83 b->start = new_heap;
adamc@667	84 }
adamc@667	85 }
adamc@667	86
adamc@667	87 static size_t buf_used(buf *b) {
adamc@667	88 return b->front - b->start;
adamc@667	89 }
adamc@667	90
adamc@667	91 static size_t buf_avail(buf *b) {
adamc@667	92 return b->back - b->start;
adamc@667	93 }
adamc@667	94
adamc@668	95 static void buf_append(buf b, const char s, size_t len) {
adamc@672	96 buf_check(b, len+1);
adamc@668	97 memcpy(b->front, s, len);
adamc@668	98 b->front += len;
adamc@672	99 *b->front = 0;
adamc@668	100 }
adamc@667	101
adamc@668	102
adamc@672	103 // Persistent state types
adamc@667	104
adamc@667	105 typedef enum { UNUSED, USED } usage;
adamc@667	106
adamc@667	107 typedef struct client {
adamc@682	108 unsigned id;
adamc@667	109 usage mode;
adamc@682	110 int pass;
adamc@682	111 struct client *next;
adamc@689	112 pthread_mutex_t lock, pull_lock;
adamc@682	113 buf msgs;
adamc@682	114 int sock;
adamc@863	115 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	116 int (*close)(int fd);
adamc@682	117 time_t last_contact;
adamc@682	118 unsigned n_channels;
adamc@685	119 unsigned refcount;
adamc@667	120 } client;
adamc@667	121
adamc@672	122
adamc@672	123 // Persistent client state
adamc@672	124
adamc@682	125 static client *clients, clients_free, *clients_used;
adamc@682	126 static unsigned n_clients;
adamc@667	127
adamc@667	128 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@667	129
adamc@682	130 static client *new_client() {
adamc@667	131 client *c;
adamc@667	132
adamc@667	133 pthread_mutex_lock(&clients_mutex);
adamc@667	134
adamc@667	135 if (clients_free) {
adamc@667	136 c = clients_free;
adamc@682	137 clients_free = clients_free->next;
adamc@667	138 }
adamc@667	139 else {
adamc@667	140 ++n_clients;
adamc@667	141 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	142 c = malloc(sizeof(client));
adamc@667	143 c->id = n_clients-1;
adamc@682	144 pthread_mutex_init(&c->lock, NULL);
adamc@689	145 pthread_mutex_init(&c->pull_lock, NULL);
adamc@682	146 buf_init(&c->msgs, 0);
adamc@667	147 clients[n_clients-1] = c;
adamc@667	148 }
adamc@667	149
adamc@682	150 pthread_mutex_lock(&c->lock);
adamc@667	151 c->mode = USED;
adamc@682	152 c->pass = rand();
adamc@682	153 c->sock = -1;
adamc@682	154 c->last_contact = time(NULL);
adamc@682	155 buf_reset(&c->msgs);
adamc@682	156 c->n_channels = 0;
adamc@685	157 c->refcount = 0;
adamc@682	158 pthread_mutex_unlock(&c->lock);
adamc@682	159
adamc@682	160 c->next = clients_used;
adamc@682	161 clients_used = c;
adamc@667	162
adamc@667	163 pthread_mutex_unlock(&clients_mutex);
adamc@667	164
adamc@667	165 return c;
adamc@667	166 }
adamc@667	167
adamc@685	168 static void use_client(client *c) {
adamc@685	169 pthread_mutex_lock(&c->lock);
adamc@685	170 ++c->refcount;
adamc@685	171 pthread_mutex_unlock(&c->lock);
adamc@689	172 pthread_mutex_lock(&c->pull_lock);
adamc@685	173 }
adamc@685	174
adamc@685	175 static void release_client(client *c) {
adamc@689	176 pthread_mutex_unlock(&c->pull_lock);
adamc@685	177 pthread_mutex_lock(&c->lock);
adamc@685	178 --c->refcount;
adamc@685	179 pthread_mutex_unlock(&c->lock);
adamc@689	180
adamc@685	181 }
adamc@685	182
adamc@856	183 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adamc@667	184
adamc@682	185 static client *find_client(unsigned id) {
adamc@667	186 client *c;
adamc@667	187
adamc@667	188 pthread_mutex_lock(&clients_mutex);
adamc@667	189
adamc@667	190 if (id >= n_clients) {
adamc@667	191 pthread_mutex_unlock(&clients_mutex);
adamc@668	192 return NULL;
adamc@667	193 }
adamc@667	194
adamc@667	195 c = clients[id];
adamc@667	196
adamc@668	197 pthread_mutex_unlock(&clients_mutex);
adamc@668	198 return c;
adamc@668	199 }
adamc@668	200
adamc@856	201 static char *on_success = "HTTP/1.1 200 OK\r\n";
adamc@1065	202 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	203
adamc@856	204 void uw_set_on_success(char *s) {
adamc@856	205 on_success = s;
adamc@856	206 }
adamc@856	207
adamc@863	208 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	209 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	210 int (*close)(int fd),
adamc@864	211 void *logger_data, uw_logger log_error) {
adamc@682	212 client *c = find_client(id);
adamc@668	213
adamc@668	214 if (c == NULL) {
adamc@667	215 close(sock);
adamc@864	216 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	217 return;
adamc@667	218 }
adamc@667	219
adamc@682	220 pthread_mutex_lock(&c->lock);
adamc@671	221
adamc@682	222 if (c->mode != USED) {
adamc@682	223 pthread_mutex_unlock(&c->lock);
adamc@667	224 close(sock);
adamc@864	225 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	226 return;
adamc@667	227 }
adamc@667	228
adamc@682	229 if (pass != c->pass) {
adamc@682	230 pthread_mutex_unlock(&c->lock);
adamc@682	231 close(sock);
adamc@864	232 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	233 return;
adamc@667	234 }
adamc@667	235
adamc@682	236 if (c->sock != -1) {
adamc@863	237 c->close(c->sock);
adamc@682	238 c->sock = -1;
adamc@682	239 }
adamc@667	240
adamc@682	241 c->last_contact = time(NULL);
adamc@682	242
adamc@682	243 if (buf_used(&c->msgs) > 0) {
adamc@863	244 send(sock, on_success, strlen(on_success));
adamc@863	245 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863	246 send(sock, c->msgs.start, buf_used(&c->msgs));
adamc@682	247 buf_reset(&c->msgs);
adamc@667	248 close(sock);
adamc@667	249 }
adamc@863	250 else {
adamc@682	251 c->sock = sock;
adamc@863	252 c->send = send;
adamc@863	253 c->close = close;
adamc@863	254 }
adamc@667	255
adamc@682	256 pthread_mutex_unlock(&c->lock);
adamc@667	257 }
adamc@667	258
adamc@682	259 static void free_client(client *c) {
adamc@682	260 c->mode = UNUSED;
adamc@682	261 c->pass = -1;
adamc@667	262
adamc@682	263 c->next = clients_free;
adamc@682	264 clients_free = c;
adamc@667	265 }
adamc@667	266
adamc@682	267 static uw_Basis_channel new_channel(client *c) {
adamc@682	268 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	269 return ch;
adamc@668	270 }
adamc@668	271
adamc@685	272 static void client_send(client c, buf msg) {
adamc@685	273 pthread_mutex_lock(&c->lock);
adamc@671	274
adamc@682	275 if (c->sock != -1) {
adamc@863	276 c->send(c->sock, on_success, strlen(on_success));
adamc@863	277 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863	278 c->send(c->sock, msg->start, buf_used(msg));
adamc@863	279 c->close(c->sock);
adamc@682	280 c->sock = -1;
adamc@682	281 } else
adamc@682	282 buf_append(&c->msgs, msg->start, buf_used(msg));
adamc@671	283
adamc@685	284 pthread_mutex_unlock(&c->lock);
adamc@668	285 }
adamc@668	286
adamc@668	287
adamc@668	288 // Global entry points
adamc@668	289
adamc@866	290 extern void uw_client_init();
adamc@866	291
adamc@668	292 void uw_global_init() {
adamc@668	293 srand(time(NULL) ^ getpid());
adamc@668	294
adamc@668	295 clients = malloc(0);
adamc@866	296
adamc@866	297 uw_client_init();
adamc@668	298 }
adamc@668	299
adamc@668	300
adamc@667	301 // Single-request state
adamc@667	302
adamc@167	303 #define ERROR_BUF_LEN 1024
adamc@167	304
adamc@323	305 typedef struct regions {
adamc@323	306 struct regions *next;
adamc@323	307 } regions;
adamc@323	308
adamc@425	309 typedef struct {
adamc@425	310 void (func)(void);
adamc@425	311 void *arg;
adamc@425	312 } cleanup;
adamc@425	313
adamc@671	314 typedef struct {
adamc@682	315 unsigned client;
adamc@671	316 buf msgs;
adamc@682	317 } delta;
adamc@671	318
adamc@737	319 typedef enum {
adamc@759	320 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	321 } input_kind;
adamc@737	322
adamc@756	323 typedef struct input {
adamc@737	324 input_kind kind;
adamc@737	325 union {
adamc@737	326 char *normal;
adamc@739	327 uw_Basis_file file;
adamc@756	328 struct {
adamc@759	329 struct input fields, parent;
adamc@756	330 } subform;
adamc@759	331 struct {
adamc@759	332 struct input entries, parent;
adamc@759	333 } subforms;
adamc@759	334 struct {
adamc@759	335 struct input fields, next, *parent;
adamc@759	336 } entry;
adamc@737	337 } data;
adamc@737	338 } input;
adamc@737	339
adamc@771	340 typedef struct {
adamc@771	341 void *data;
adamc@771	342 uw_callback commit, rollback, free;
adamc@771	343 } transactional;
adamc@771	344
adamc@1061	345 typedef struct {
adamc@1061	346 char *name;
adamc@1061	347 void *data;
adamc@1061	348 void (free)(void);
adamc@1061	349 } global;
adamc@1061	350
adamc@311	351 struct uw_context {
adamc@854	352 char (get_header)(void , const char );
adamc@854	353 void *get_header_data;
adamc@457	354
adamc@666	355 buf outHeaders, page, heap, script;
adamc@1065	356 int returning_indirectly;
adamc@759	357 input inputs, subinputs, *cur_container;
adamc@756	358 size_t n_subinputs, used_subinputs;
adamc@167	359
adamc@565	360 int source_count;
adamc@562	361
adamc@272	362 void *db;
adamc@272	363
adamc@167	364 jmp_buf jmp_buf;
adamc@167	365
adamc@323	366 regions *regions;
adamc@323	367
adamc@425	368 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	369
adamc@667	370 const char script_header, url_prefix;
adamc@643	371
adamc@736	372 int needs_push, needs_sig;
adamc@693	373
adamc@682	374 size_t n_deltas, used_deltas;
adamc@682	375 delta *deltas;
adamc@671	376
adamc@673	377 int timeout;
adamc@673	378
adamc@682	379 client *client;
adamc@682	380
adamc@771	381 transactional *transactionals;
adamc@771	382 size_t n_transactionals, used_transactionals;
adamc@771	383
adamc@1061	384 global *globals;
adamc@1061	385 size_t n_globals;
adamc@1061	386
adamc@1066	387 char *current_url;
adamc@1066	388
adamc@167	389 char error_message[ERROR_BUF_LEN];
adamc@117	390 };
adamc@117	391
adamc@683	392 extern int uw_inputs_len, uw_timeout;
adamc@144	393
adamc@687	394 uw_context uw_init() {
adamc@311	395 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	396
adamc@854	397 ctx->get_header = NULL;
adamc@854	398 ctx->get_header_data = NULL;
adamc@457	399
adamc@687	400 buf_init(&ctx->outHeaders, 0);
adamc@687	401 buf_init(&ctx->page, 0);
adamc@1065	402 ctx->returning_indirectly = 0;
adamc@687	403 buf_init(&ctx->heap, 0);
adamc@698	404 buf_init(&ctx->script, 1);
adamc@667	405 ctx->script.start[0] = 0;
adamc@136	406
adamc@737	407 ctx->inputs = calloc(uw_inputs_len, sizeof(input));
adamc@759	408 ctx->cur_container = NULL;
adamc@756	409 ctx->subinputs = malloc(0);
adamc@756	410 ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	411
adamc@272	412 ctx->db = NULL;
adamc@272	413
adamc@323	414 ctx->regions = NULL;
adamc@323	415
adamc@425	416 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	417
adamc@643	418 ctx->script_header = "";
adamc@667	419 ctx->url_prefix = "/";
adamc@693	420 ctx->needs_push = 0;
adamc@736	421 ctx->needs_sig = 0;
adamc@643	422
adamc@167	423 ctx->error_message[0] = 0;
adamc@167	424
adamc@565	425 ctx->source_count = 0;
adamc@562	426
adamc@682	427 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	428 ctx->deltas = malloc(0);
adamc@671	429
adamc@673	430 ctx->timeout = uw_timeout;
adamc@673	431
adamc@700	432 ctx->client = NULL;
adamc@700	433
adamc@700	434 ctx->error_message[0] = 0;
adamc@700	435
adamc@771	436 ctx->transactionals = malloc(0);
adamc@771	437 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	438
adamc@1061	439 ctx->globals = malloc(0);
adamc@1061	440 ctx->n_globals = 0;
adamc@1061	441
adamc@1066	442 ctx->current_url = "";
adamc@1066	443
adamc@117	444 return ctx;
adamc@106	445 }
adamc@106	446
adamc@311	447 void uw_set_db(uw_context ctx, void *db) {
adamc@272	448 ctx->db = db;
adamc@272	449 }
adamc@272	450
adamc@311	451 void *uw_get_db(uw_context ctx) {
adamc@272	452 return ctx->db;
adamc@272	453 }
adamc@272	454
adamc@311	455 void uw_free(uw_context ctx) {
adamc@671	456 size_t i;
adamc@671	457
adamc@666	458 buf_free(&ctx->outHeaders);
adamc@666	459 buf_free(&ctx->script);
adamc@666	460 buf_free(&ctx->page);
adamc@666	461 buf_free(&ctx->heap);
adamc@144	462 free(ctx->inputs);
adamc@756	463 free(ctx->subinputs);
adamc@425	464 free(ctx->cleanup);
adamc@771	465 free(ctx->transactionals);
adamc@671	466
adamc@682	467 for (i = 0; i < ctx->n_deltas; ++i)
adamc@671	468 buf_free(&ctx->deltas[i].msgs);
adamc@671	469
adamc@1061	470 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	471 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	472
adamc@136	473 free(ctx);
adamc@136	474 }
adamc@136	475
adamc@562	476 void uw_reset_keep_error_message(uw_context ctx) {
adamc@756	477 size_t i;
adamc@756	478
adamc@666	479 buf_reset(&ctx->outHeaders);
adamc@666	480 buf_reset(&ctx->script);
adamc@667	481 ctx->script.start[0] = 0;
adamc@666	482 buf_reset(&ctx->page);
adamc@1065	483 ctx->returning_indirectly = 0;
adamc@666	484 buf_reset(&ctx->heap);
adamc@323	485 ctx->regions = NULL;
adamc@425	486 ctx->cleanup_front = ctx->cleanup;
adamc@565	487 ctx->source_count = 0;
adamc@682	488 ctx->used_deltas = 0;
adamc@682	489 ctx->client = NULL;
adamc@759	490 ctx->cur_container = NULL;
adamc@771	491 ctx->used_transactionals = 0;
adamc@167	492 }
adamc@167	493
adamc@562	494 void uw_reset_keep_request(uw_context ctx) {
adamc@562	495 uw_reset_keep_error_message(ctx);
adamc@562	496 ctx->error_message[0] = 0;
adamc@167	497 }
adamc@167	498
adamc@311	499 void uw_reset(uw_context ctx) {
adamc@311	500 uw_reset_keep_request(ctx);
adamc@737	501 memset(ctx->inputs, 0, uw_inputs_len * sizeof(input));
adamc@756	502 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adamc@756	503 ctx->used_subinputs = 0;
adamc@144	504 }
adamc@144	505
adamc@311	506 void uw_db_init(uw_context);
adamc@311	507 void uw_handle(uw_context, char *);
adamc@167	508
adamc@311	509 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	510 int r = setjmp(ctx->jmp_buf);
adamc@272	511
adamc@272	512 if (r == 0)
adamc@311	513 uw_db_init(ctx);
adamc@272	514
adamc@272	515 return r;
adamc@272	516 }
adamc@272	517
adamc@854	518 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	519 ctx->get_header = get_header;
adamc@854	520 ctx->get_header_data = get_header_data;
adamc@742	521 }
adamc@742	522
adamc@671	523 int uw_db_begin(uw_context);
adamc@167	524
adamc@801	525 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	526 va_list ap;
adamc@801	527 va_start(ap, fmt);
adamc@801	528
adamc@801	529 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	530 }
adamc@801	531
adamc@311	532 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	533 cleanup *cl;
adamc@425	534
adamc@167	535 va_list ap;
adamc@167	536 va_start(ap, fmt);
adamc@167	537
adamc@167	538 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	539
adamc@425	540 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	541 cl->func(cl->arg);
adamc@425	542
adamc@425	543 ctx->cleanup_front = ctx->cleanup;
adamc@425	544
adamc@190	545 longjmp(ctx->jmp_buf, fk);
adamc@167	546 }
adamc@167	547
adamc@425	548 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	549 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	550 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	551 if (len == 0)
adamc@425	552 newLen = 1;
adamc@425	553 else
adamc@428	554 newLen = len * 2;
adamc@470	555 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	556 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	557 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	558 }
adamc@425	559
adamc@425	560 ctx->cleanup_front->func = func;
adamc@425	561 ctx->cleanup_front->arg = arg;
adamc@425	562 ++ctx->cleanup_front;
adamc@425	563 }
adamc@425	564
adamc@682	565 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adamc@854	566 return ctx->get_header(ctx->get_header_data, h);
adamc@682	567 }
adamc@682	568
adamc@682	569 void uw_login(uw_context ctx) {
adamc@693	570 if (ctx->needs_push) {
adamc@682	571 char id_s, pass_s;
adamc@682	572
adamc@682	573 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682	574 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682	575 unsigned id = atoi(id_s);
adamc@682	576 int pass = atoi(pass_s);
adamc@682	577 client *c = find_client(id);
adamc@682	578
adamc@682	579 if (c == NULL)
adamc@682	580 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", id_s, pass_s);
adamc@682	581 else {
adamc@685	582 use_client(c);
adamc@682	583 ctx->client = c;
adamc@682	584
adamc@682	585 if (c->mode != USED)
adamc@682	586 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682	587 if (c->pass != pass)
adamc@682	588 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682	589 }
adamc@682	590 } else {
adamc@682	591 client *c = new_client();
adamc@685	592 use_client(c);
adamc@682	593 ctx->client = c;
adamc@864	594 }
adamc@682	595 }
adamc@682	596 }
adamc@682	597
adamc@671	598 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	599 int r = setjmp(ctx->jmp_buf);
adamc@671	600
adamc@671	601 if (r == 0) {
adamc@671	602 if (uw_db_begin(ctx))
adamc@671	603 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adamc@682	604
adamc@671	605 uw_handle(ctx, path);
adamc@671	606 }
adamc@671	607
adamc@671	608 return r;
adamc@671	609 }
adamc@671	610
adamc@772	611 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	612 if (ctx->client == NULL)
adamc@682	613 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	614
adamc@682	615 return ctx->client->id;
adamc@682	616 }
adamc@682	617
adamc@425	618 void uw_pop_cleanup(uw_context ctx) {
adamc@425	619 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	620 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	621
adamc@425	622 --ctx->cleanup_front;
adamc@425	623 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	624 }
adamc@425	625
adamc@311	626 char *uw_error_message(uw_context ctx) {
adamc@167	627 return ctx->error_message;
adamc@167	628 }
adamc@167	629
adamc@737	630 extern int uw_input_num(const char*);
adamc@144	631
adamc@759	632 static input *INP(uw_context ctx) {
adamc@759	633 if (ctx->cur_container == NULL)
adamc@759	634 return ctx->inputs;
adamc@759	635 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	636 return ctx->cur_container->data.subform.fields;
adamc@759	637 else if (ctx->cur_container->kind == ENTRY)
adamc@759	638 return ctx->cur_container->data.entry.fields;
adamc@759	639 else
adamc@760	640 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	641 }
adamc@759	642
adamc@760	643 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	644 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	645 *ptr += new_start - old_start;
adamc@760	646 }
adamc@760	647
adamc@760	648 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	649 switch (x->kind) {
adamc@759	650 case SUBFORM:
adamc@760	651 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	652 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	653 break;
adamc@759	654 case SUBFORMS:
adamc@760	655 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	656 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	657 break;
adamc@759	658 case ENTRY:
adamc@760	659 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	660 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	661 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@759	662 }
adamc@759	663 }
adamc@759	664
adamc@759	665 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	666 size_t i;
adamc@759	667 input *r;
adamc@759	668
adamc@759	669 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@759	670 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	671 size_t offset = new_subinputs - ctx->subinputs;
adamc@759	672
adamc@760	673 if (ctx->subinputs != new_subinputs) {
adamc@760	674 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	675 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	676 for (i = 0; i < uw_inputs_len; ++i)
adamc@760	677 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	678
adamc@760	679 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	680
adamc@760	681 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	682 ctx->subinputs = new_subinputs;
adamc@760	683 }
adamc@759	684 }
adamc@759	685
adamc@759	686 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	687
adamc@759	688 for (i = 0; i < len; ++i)
adamc@759	689 ctx->subinputs[ctx->used_subinputs++].kind = UNUSED;
adamc@759	690
adamc@759	691 return r;
adamc@759	692 }
adamc@756	693
adamc@801	694 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	695 //printf("Input name %s\n", name);
adamc@1038	696
adamc@756	697 if (!strcasecmp(name, ".b")) {
adamc@756	698 int n = uw_input_num(value);
adamc@756	699 input *inps;
adamc@756	700
adamc@801	701 if (n < 0) {
adamc@801	702 uw_set_error(ctx, "Bad subform name %s", value);
adamc@801	703 return -1;
adamc@801	704 }
adamc@801	705
adamc@801	706 if (n >= uw_inputs_len) {
adamc@801	707 uw_set_error(ctx, "For subform name %s, index %d is out of range", value, n);
adamc@801	708 return -1;
adamc@801	709 }
adamc@756	710
adamc@759	711 inps = check_input_space(ctx, uw_inputs_len);
adamc@759	712
adamc@759	713 INP(ctx)[n].kind = SUBFORM;
adamc@759	714 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	715 INP(ctx)[n].data.subform.fields = inps;
adamc@759	716 ctx->cur_container = &INP(ctx)[n];
adamc@756	717 } else if (!strcasecmp(name, ".e")) {
adamc@756	718 input *tmp;
adamc@756	719
adamc@801	720 if (ctx->cur_container == NULL) {
adamc@801	721 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	722 return -1;
adamc@801	723 }
adamc@756	724
adamc@759	725 tmp = ctx->cur_container;
adamc@759	726 switch (tmp->kind) {
adamc@759	727 case SUBFORM:
adamc@759	728 ctx->cur_container = tmp->data.subform.parent;
adamc@759	729 tmp->data.subform.parent = NULL;
adamc@759	730 break;
adamc@759	731 case SUBFORMS:
adamc@759	732 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	733 tmp->data.subforms.parent = NULL;
adamc@759	734 break;
adamc@759	735 case ENTRY:
adamc@759	736 ctx->cur_container = tmp->data.entry.parent;
adamc@759	737 break;
adamc@759	738 default:
adamc@801	739 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	740 return -1;
adamc@759	741 }
adamc@759	742 } else if (!strcasecmp(name, ".s")) {
adamc@759	743 int n = uw_input_num(value);
adamc@759	744
adamc@801	745 if (n < 0) {
adamc@801	746 uw_set_error(ctx, "Bad subforms name %s", value);
adamc@801	747 return -1;
adamc@801	748 }
adamc@801	749
adamc@801	750 if (n >= uw_inputs_len) {
adamc@801	751 uw_set_error(ctx, "For subforms name %s, index %d is out of range", value, n);
adamc@801	752 return -1;
adamc@801	753 }
adamc@759	754
adamc@759	755 INP(ctx)[n].kind = SUBFORMS;
adamc@759	756 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	757 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	758 ctx->cur_container = &INP(ctx)[n];
adamc@759	759 } else if (!strcasecmp(name, ".i")) {
adamc@759	760 input *inps;
adamc@759	761
adamc@801	762 if (!ctx->cur_container) {
adamc@801	763 uw_set_error(ctx, "New entry without container");
adamc@801	764 return -1;
adamc@801	765 }
adamc@801	766
adamc@801	767 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	768 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	769 return -1;
adamc@801	770 }
adamc@759	771
adamc@759	772 inps = check_input_space(ctx, uw_inputs_len + 1);
adamc@759	773
adamc@759	774 inps->kind = ENTRY;
adamc@759	775 inps->data.entry.parent = ctx->cur_container;
adamc@759	776 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	777 ctx->cur_container->data.subforms.entries = inps;
adamc@759	778
adamc@759	779 inps->data.entry.fields = inps+1;
adamc@759	780 ctx->cur_container = inps;
adamc@756	781 } else {
adamc@756	782 int n = uw_input_num(name);
adamc@756	783
adamc@801	784 if (n < 0) {
adamc@1038	785 if (!strcmp(name, "null"))
adamc@1038	786 return 0;
adamc@801	787 uw_set_error(ctx, "Bad input name %s", name);
adamc@801	788 return -1;
adamc@801	789 }
adamc@801	790
adamc@801	791 if (n >= uw_inputs_len) {
adamc@801	792 uw_set_error(ctx, "For input name %s, index %d is out of range", name, n);
adamc@801	793 return -1;
adamc@801	794 }
adamc@756	795
adamc@756	796 INP(ctx)[n].kind = NORMAL;
adamc@756	797 INP(ctx)[n].data.normal = value;
adamc@756	798 }
adamc@801	799
adamc@801	800 return 0;
adamc@144	801 }
adamc@144	802
adamc@311	803 char *uw_get_input(uw_context ctx, int n) {
adamc@169	804 if (n < 0)
adamc@311	805 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311	806 if (n >= uw_inputs_len)
adamc@311	807 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	808
adamc@756	809 switch (INP(ctx)[n].kind) {
adamc@737	810 case UNSET:
adamc@737	811 return NULL;
adamc@739	812 case FIL:
adamc@739	813 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	814 case SUBFORM:
adamc@756	815 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	816 case SUBFORMS:
adamc@759	817 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	818 case ENTRY:
adamc@759	819 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	820 case NORMAL:
adamc@756	821 return INP(ctx)[n].data.normal;
adamc@737	822 default:
adamc@737	823 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	824 }
adamc@138	825 }
adamc@138	826
adamc@311	827 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	828 if (n < 0)
adamc@311	829 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311	830 if (n >= uw_inputs_len)
adamc@311	831 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	832
adamc@756	833 switch (INP(ctx)[n].kind) {
adamc@737	834 case UNSET:
adamc@737	835 return "";
adamc@739	836 case FIL:
adamc@739	837 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	838 case SUBFORM:
adamc@756	839 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	840 case SUBFORMS:
adamc@759	841 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	842 case ENTRY:
adamc@759	843 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	844 case NORMAL:
adamc@756	845 return INP(ctx)[n].data.normal;
adamc@737	846 default:
adamc@737	847 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	848 }
adamc@737	849 }
adamc@737	850
adamc@801	851 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@737	852 int n = uw_input_num(name);
adamc@737	853
adamc@801	854 if (n < 0) {
adamc@801	855 uw_set_error(ctx, "Bad file input name %s", name);
adamc@801	856 return -1;
adamc@801	857 }
adamc@801	858
adamc@801	859 if (n >= uw_inputs_len) {
adamc@801	860 uw_set_error(ctx, "For file input name %s, index %d is out of range", name, n);
adamc@801	861 return -1;
adamc@801	862 }
adamc@737	863
adamc@739	864 ctx->inputs[n].kind = FIL;
adamc@739	865 ctx->inputs[n].data.file = f;
adamc@801	866
adamc@801	867 return 0;
adamc@737	868 }
adamc@737	869
adamc@739	870 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	871
adamc@760	872
adamc@760	873 static void parents(input *inp) {
adamc@760	874 printf("Stack: %p\n", inp);
adamc@760	875 while (inp) {
adamc@760	876 switch (inp->kind) {
adamc@760	877 case NORMAL:
adamc@760	878 printf("Normal(%p)\n", inp);
adamc@760	879 break;
adamc@760	880 case FIL:
adamc@760	881 printf("File(%p)\n", inp);
adamc@760	882 break;
adamc@760	883 case SUBFORM:
adamc@760	884 printf("Subform; fields = %p\n", inp->data.subform.fields);
adamc@760	885 inp = inp->data.subform.parent;
adamc@760	886 break;
adamc@760	887 case SUBFORMS:
adamc@760	888 printf("Subforms; entries = %p\n", inp->data.subforms.entries);
adamc@760	889 inp = inp->data.subforms.parent;
adamc@760	890 break;
adamc@760	891 case ENTRY:
adamc@760	892 printf("Entry; fields = %p; next = %p\n", inp->data.entry.fields, inp->data.entry.next);
adamc@760	893 inp = inp->data.entry.parent;
adamc@760	894 break;
adamc@760	895 default:
adamc@760	896 inp = NULL;
adamc@760	897 }
adamc@760	898 }
adamc@760	899 }
adamc@760	900
adamc@739	901 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	902 if (n < 0)
adamc@737	903 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@737	904 if (n >= uw_inputs_len)
adamc@737	905 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	906
adamc@756	907 switch (INP(ctx)[n].kind) {
adamc@737	908 case UNSET:
adamc@737	909 {
adamc@739	910 char *data = uw_malloc(ctx, 0);
adamc@740	911 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	912 return f;
adamc@737	913 }
adamc@739	914 case FIL:
adamc@756	915 return INP(ctx)[n].data.file;
adamc@737	916 case NORMAL:
adamc@737	917 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	918 case SUBFORM:
adamc@756	919 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	920 case SUBFORMS:
adamc@759	921 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	922 case ENTRY:
adamc@759	923 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	924 default:
adamc@737	925 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	926 }
adamc@190	927 }
adamc@190	928
adamc@756	929 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	930 if (n < 0)
adamc@756	931 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@756	932 if (n >= uw_inputs_len)
adamc@756	933 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	934
adamc@756	935 switch (INP(ctx)[n].kind) {
adamc@756	936 case UNSET:
adamc@756	937 uw_error(ctx, FATAL, "Missing subform");
adamc@756	938 case FIL:
adamc@756	939 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	940 case NORMAL:
adamc@756	941 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	942 case SUBFORMS:
adamc@759	943 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	944 case ENTRY:
adamc@759	945 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	946 case SUBFORM:
adamc@759	947 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	948 ctx->cur_container = &INP(ctx)[n];
adamc@756	949 return;
adamc@756	950 default:
adamc@756	951 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	952 }
adamc@756	953 }
adamc@756	954
adamc@756	955 void uw_leave_subform(uw_context ctx) {
adamc@756	956 input *tmp;
adamc@756	957
adamc@759	958 if (ctx->cur_container == NULL)
adamc@756	959 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	960
adamc@759	961 tmp = ctx->cur_container;
adamc@759	962 ctx->cur_container = tmp->data.subform.parent;
adamc@759	963 tmp->data.subform.parent = NULL;
adamc@759	964 }
adamc@759	965
adamc@759	966 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	967 input *inps;
adamc@759	968
adamc@759	969 if (n < 0)
adamc@759	970 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@759	971 if (n >= uw_inputs_len)
adamc@759	972 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	973
adamc@759	974 switch (INP(ctx)[n].kind) {
adamc@759	975 case UNSET:
adamc@759	976 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	977 case FIL:
adamc@759	978 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	979 case NORMAL:
adamc@759	980 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	981 case SUBFORM:
adamc@759	982 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	983 case ENTRY:
adamc@759	984 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	985 case SUBFORMS:
adamc@759	986 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	987 if (inps) {
adamc@759	988 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	989 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	990 return 1;
adamc@759	991 } else
adamc@759	992 return 0;
adamc@759	993 default:
adamc@759	994 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	995 }
adamc@759	996 }
adamc@759	997
adamc@759	998 int uw_next_entry(uw_context ctx) {
adamc@759	999 if (ctx->cur_container == NULL)
adamc@759	1000 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1001
adamc@759	1002 switch (ctx->cur_container->kind) {
adamc@759	1003 case UNSET:
adamc@759	1004 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1005 case FIL:
adamc@759	1006 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1007 case NORMAL:
adamc@759	1008 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1009 case SUBFORM:
adamc@759	1010 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1011 case SUBFORMS:
adamc@759	1012 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1013 case ENTRY:
adamc@759	1014 if (ctx->cur_container->data.entry.next) {
adamc@759	1015 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1016 return 1;
adamc@759	1017 } else {
adamc@759	1018 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1019 return 0;
adamc@759	1020 }
adamc@759	1021 default:
adamc@759	1022 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1023 }
adamc@756	1024 }
adamc@756	1025
adamc@643	1026 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1027 ctx->script_header = s;
adamc@643	1028 }
adamc@643	1029
adamc@667	1030 void uw_set_url_prefix(uw_context ctx, const char *s) {
adamc@667	1031 ctx->url_prefix = s;
adamc@667	1032 }
adamc@667	1033
adamc@693	1034 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1035 ctx->needs_push = n;
adamc@693	1036 }
adamc@693	1037
adamc@736	1038 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1039 ctx->needs_sig = n;
adamc@736	1040 }
adamc@736	1041
adamc@667	1042
adamc@667	1043 static void buf_check_ctx(uw_context ctx, buf b, size_t extra, const char desc) {
adamc@666	1044 if (b->back - b->front < extra) {
adamc@666	1045 size_t desired = b->front - b->start + extra, next;
adamc@136	1046 char *new_heap;
adamc@136	1047
adamc@666	1048 next = b->back - b->start;
adamc@317	1049 if (next == 0)
adamc@317	1050 next = 1;
adamc@317	1051 for (; next < desired; next *= 2);
adamc@136	1052
adamc@666	1053 new_heap = realloc(b->start, next);
adamc@666	1054 b->front = new_heap + (b->front - b->start);
adamc@666	1055 b->back = new_heap + next;
adamc@136	1056
adamc@667	1057 if (new_heap != b->start) {
adamc@666	1058 b->start = new_heap;
adamc@666	1059 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously", desc);
adamc@136	1060 }
adamc@136	1061
adamc@666	1062 b->start = new_heap;
adamc@136	1063 }
adamc@136	1064 }
adamc@136	1065
adamc@832	1066 void uw_check_heap(uw_context ctx, size_t extra) {
adamc@667	1067 buf_check_ctx(ctx, &ctx->heap, extra, "heap chunk");
adamc@666	1068 }
adamc@666	1069
adamc@832	1070 char *uw_heap_front(uw_context ctx) {
adamc@832	1071 return ctx->heap.front;
adamc@832	1072 }
adamc@832	1073
adamc@832	1074 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1075 ctx->heap.front = fr;
adamc@832	1076 }
adamc@832	1077
adamc@311	1078 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136	1079 void *result;
adamc@136	1080
adamc@311	1081 uw_check_heap(ctx, len);
adamc@136	1082
adamc@666	1083 result = ctx->heap.front;
adamc@666	1084 ctx->heap.front += len;
adamc@136	1085 return result;
adamc@117	1086 }
adamc@117	1087
adamc@323	1088 void uw_begin_region(uw_context ctx) {
adamc@666	1089 regions r = (regions ) ctx->heap.front;
adamc@323	1090
adamc@323	1091 uw_check_heap(ctx, sizeof(regions));
adamc@323	1092
adamc@666	1093 ctx->heap.front += sizeof(regions);
adamc@323	1094
adamc@323	1095 r->next = ctx->regions;
adamc@323	1096 ctx->regions = r;
adamc@323	1097 }
adamc@323	1098
adamc@323	1099 void uw_end_region(uw_context ctx) {
adamc@323	1100 regions *r = ctx->regions;
adamc@323	1101
adamc@323	1102 if (r == NULL)
adamc@323	1103 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1104
adamc@666	1105 ctx->heap.front = (char *) r;
adamc@323	1106 ctx->regions = r->next;
adamc@323	1107 }
adamc@323	1108
adamc@324	1109 void uw_memstats(uw_context ctx) {
adamc@666	1110 printf("Headers: %d/%d\n", buf_used(&ctx->outHeaders), buf_avail(&ctx->outHeaders));
adamc@666	1111 printf("Script: %d/%d\n", buf_used(&ctx->script), buf_avail(&ctx->script));
adamc@666	1112 printf("Page: %d/%d\n", buf_used(&ctx->page), buf_avail(&ctx->page));
adamc@666	1113 printf("Heap: %d/%d\n", buf_used(&ctx->heap), buf_avail(&ctx->heap));
adamc@324	1114 }
adamc@324	1115
adamc@311	1116 int uw_send(uw_context ctx, int sock) {
adamc@666	1117 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462	1118
adamc@462	1119 if (n < 0)
adamc@462	1120 return n;
adamc@462	1121
adamc@462	1122 n = uw_really_send(sock, "\r\n", 2);
adamc@462	1123
adamc@462	1124 if (n < 0)
adamc@462	1125 return n;
adamc@462	1126
adamc@666	1127 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462	1128 }
adamc@462	1129
adamc@856	1130 int uw_print(uw_context ctx, int fd) {
adamc@856	1131 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1132
adamc@856	1133 if (n < 0)
adamc@856	1134 return n;
adamc@856	1135
adamc@856	1136 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1137
adamc@856	1138 if (n < 0)
adamc@856	1139 return n;
adamc@856	1140
adamc@856	1141 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1142 }
adamc@856	1143
adamc@860	1144 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1145 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1146
adamc@860	1147 if (n < 0)
adamc@860	1148 return n;
adamc@860	1149
adamc@860	1150 n = output(data, "\r\n", 2);
adamc@860	1151
adamc@860	1152 if (n < 0)
adamc@860	1153 return n;
adamc@860	1154
adamc@860	1155 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1156 }
adamc@860	1157
adamc@462	1158 static void uw_check_headers(uw_context ctx, size_t extra) {
adamc@667	1159 buf_check(&ctx->outHeaders, extra);
adamc@462	1160 }
adamc@462	1161
adamc@462	1162 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1163 int len = strlen(s);
adamc@462	1164
adamc@462	1165 uw_check_headers(ctx, len + 1);
adamc@666	1166 strcpy(ctx->outHeaders.front, s);
adamc@666	1167 ctx->outHeaders.front += len;
adamc@562	1168 }
adamc@562	1169
adamc@562	1170 static void uw_check_script(uw_context ctx, size_t extra) {
adamc@667	1171 buf_check(&ctx->script, extra);
adamc@562	1172 }
adamc@562	1173
adamc@562	1174 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1175 int len = strlen(s);
adamc@562	1176
adamc@562	1177 uw_check_script(ctx, len + 1);
adamc@666	1178 strcpy(ctx->script.front, s);
adamc@666	1179 ctx->script.front += len;
adamc@562	1180 }
adamc@562	1181
adamc@645	1182 const char *uw_Basis_get_script(uw_context ctx, uw_unit u) {
adamc@916	1183 return "<sc>";
adamc@565	1184 }
adamc@565	1185
adamc@695	1186 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1187 if (s[0] == 0)
adamc@695	1188 return "";
adamc@695	1189 else {
adamc@695	1190 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1191 sprintf(r, " onload='%s'", s);
adamc@695	1192 return r;
adamc@695	1193 }
adamc@695	1194 }
adamc@695	1195
adamc@1042	1196 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1197 if (ctx->script_header[0] == 0)
adamc@1042	1198 return "";
adamc@1042	1199 else {
adamc@1042	1200 char *r = uw_malloc(ctx, 22 + strlen(s));
adamc@1042	1201 sprintf(r, " onunload='unload();%s'", s);
adamc@1042	1202 return r;
adamc@1042	1203 }
adamc@1042	1204 }
adamc@1042	1205
adamc@736	1206 extern uw_Basis_string uw_cookie_sig(uw_context);
adamc@736	1207
adamc@694	1208 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1209 if (ctx->client == NULL) {
adamc@736	1210 if (ctx->needs_sig) {
adamc@736	1211 char *sig = uw_cookie_sig(ctx);
adamc@736	1212 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1213 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1214 return r;
adamc@736	1215 }
adamc@736	1216 else
adamc@736	1217 return "";
adamc@736	1218 } else {
adamc@736	1219 char *sig = ctx->needs_sig ? uw_cookie_sig(ctx) : "";
adamc@736	1220 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->url_prefix)
adamc@736	1221 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adamc@736	1222 sprintf(r, "client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adamc@682	1223 ctx->client->id,
adamc@682	1224 ctx->client->pass,
adamc@679	1225 ctx->url_prefix,
adamc@736	1226 ctx->timeout,
adamc@736	1227 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1228 sig,
adamc@736	1229 ctx->needs_sig ? "\";" : "");
adamc@679	1230 return r;
adamc@668	1231 }
adamc@667	1232 }
adamc@667	1233
adamc@574	1234 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1235 char r, s2;
adamc@574	1236
adamc@574	1237 uw_check_heap(ctx, strlen(s) * 4 + 2);
adamc@574	1238
adamc@666	1239 r = s2 = ctx->heap.front;
adamc@574	1240 *s2++ = '"';
adamc@574	1241
adamc@574	1242 for (; *s; s++) {
adamc@574	1243 char c = *s;
adamc@574	1244
adamc@574	1245 switch (c) {
adamc@574	1246 case '"':
adamc@574	1247 strcpy(s2, "\\\"");
adamc@574	1248 s2 += 2;
adamc@574	1249 break;
adamc@1027	1250 case '\'':
adamc@1027	1251 strcpy(s2, "\\047");
adamc@1027	1252 s2 += 4;
adamc@1027	1253 break;
adamc@574	1254 case '\\':
adamc@574	1255 strcpy(s2, "\\\\");
adamc@574	1256 s2 += 2;
adamc@574	1257 break;
adamc@574	1258 default:
adamc@574	1259 if (isprint(c))
adamc@574	1260 *s2++ = c;
adamc@574	1261 else {
adamc@574	1262 sprintf(s2, "\\%3o", c);
adamc@574	1263 s2 += 4;
adamc@574	1264 }
adamc@574	1265 }
adamc@574	1266 }
adamc@574	1267
adamc@574	1268 strcpy(s2, "\"");
adamc@910	1269 ctx->heap.front = s2 + 2;
adamc@574	1270 return r;
adamc@574	1271 }
adamc@574	1272
adamc@1025	1273 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1025	1274 char r, s2;
adamc@1025	1275
adamc@1025	1276 uw_check_heap(ctx, 6);
adamc@1025	1277
adamc@1025	1278 r = s2 = ctx->heap.front;
adamc@1025	1279 *s2++ = '"';
adamc@1025	1280
adamc@1025	1281 switch (c) {
adamc@1025	1282 case '"':
adamc@1025	1283 strcpy(s2, "\\\"");
adamc@1025	1284 s2 += 2;
adamc@1025	1285 break;
adamc@1027	1286 case '\'':
adamc@1027	1287 strcpy(s2, "\\047");
adamc@1027	1288 s2 += 4;
adamc@1027	1289 break;
adamc@1025	1290 case '\\':
adamc@1025	1291 strcpy(s2, "\\\\");
adamc@1025	1292 s2 += 2;
adamc@1025	1293 break;
adamc@1025	1294 default:
adamc@1025	1295 if (isprint(c))
adamc@1025	1296 *s2++ = c;
adamc@1025	1297 else {
adamc@1025	1298 sprintf(s2, "\\%3o", c);
adamc@1025	1299 s2 += 4;
adamc@1025	1300 }
adamc@1025	1301 }
adamc@1025	1302
adamc@1025	1303 strcpy(s2, "\"");
adamc@1025	1304 ctx->heap.front = s2 + 2;
adamc@1025	1305 return r;
adamc@1025	1306 }
adamc@1025	1307
adamc@574	1308 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1309 char r, s2;
adamc@574	1310
adamc@574	1311 uw_check_script(ctx, strlen(s) * 4 + 2);
adamc@574	1312
adamc@666	1313 r = s2 = ctx->script.front;
adamc@574	1314 *s2++ = '"';
adamc@574	1315
adamc@574	1316 for (; *s; s++) {
adamc@574	1317 char c = *s;
adamc@574	1318
adamc@574	1319 switch (c) {
adamc@577	1320 case '\'':
adamc@1027	1321 strcpy(s2, "\\");
adamc@574	1322 s2 += 2;
adamc@574	1323 break;
adamc@574	1324 case '\\':
adamc@574	1325 strcpy(s2, "\\\\");
adamc@574	1326 s2 += 2;
adamc@574	1327 break;
adamc@574	1328 default:
adamc@574	1329 if (isprint(c))
adamc@574	1330 *s2++ = c;
adamc@574	1331 else {
adamc@574	1332 sprintf(s2, "\\%3o", c);
adamc@574	1333 s2 += 4;
adamc@574	1334 }
adamc@574	1335 }
adamc@574	1336 }
adamc@574	1337
adamc@574	1338 strcpy(s2, "\"");
adamc@666	1339 ctx->script.front = s2 + 1;
adamc@574	1340 return r;
adamc@574	1341 }
adamc@574	1342
adamc@682	1343 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1344 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1345 return "null";
adamc@682	1346 else {
adamc@682	1347 int len;
adamc@682	1348 char *r;
adamc@682	1349
adamc@682	1350 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1351 r = ctx->heap.front;
adamc@682	1352 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1353 ctx->heap.front += len+1;
adamc@682	1354 return r;
adamc@682	1355 }
adamc@682	1356 }
adamc@682	1357
adamc@577	1358 uw_Basis_int uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1359 int len;
adamc@577	1360 size_t s_len = strlen(s);
adamc@562	1361
adamc@970	1362 uw_check_script(ctx, 18 + INTS_MAX + s_len);
adamc@970	1363 sprintf(ctx->script.front, "var s%d=sc(exec(%n", ctx->source_count, &len);
adamc@666	1364 ctx->script.front += len;
adamc@666	1365 strcpy(ctx->script.front, s);
adamc@666	1366 ctx->script.front += s_len;
adamc@970	1367 strcpy(ctx->script.front, "));");
adamc@972	1368 ctx->script.front += 3;
adamc@562	1369
adamc@565	1370 return ctx->source_count++;
adamc@117	1371 }
adamc@117	1372
adamc@577	1373 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_int n, uw_Basis_string s) {
adamc@577	1374 int len;
adamc@577	1375 size_t s_len = strlen(s);
adamc@577	1376
adamc@970	1377 uw_check_script(ctx, 12 + INTS_MAX + s_len);
adamc@970	1378 sprintf(ctx->script.front, "sv(s%d,exec(%n", (int)n, &len);
adamc@666	1379 ctx->script.front += len;
adamc@666	1380 strcpy(ctx->script.front, s);
adamc@666	1381 ctx->script.front += s_len;
adamc@970	1382 strcpy(ctx->script.front, "));");
adamc@972	1383 ctx->script.front += 3;
adamc@577	1384
adamc@577	1385 return uw_unit_v;
adamc@577	1386 }
adamc@577	1387
adamc@311	1388 static void uw_check(uw_context ctx, size_t extra) {
adamc@667	1389 buf_check(&ctx->page, extra);
adamc@117	1390 }
adamc@117	1391
adamc@311	1392 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1393 *(ctx->page.front)++ = c;
adamc@117	1394 }
adamc@117	1395
adamc@311	1396 void uw_writec(uw_context ctx, char c) {
adamc@311	1397 uw_check(ctx, 1);
adamc@311	1398 uw_writec_unsafe(ctx, c);
adamc@117	1399 }
adamc@117	1400
adamc@311	1401 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1402 int len = strlen(s);
adamc@666	1403 memcpy(ctx->page.front, s, len);
adamc@666	1404 ctx->page.front += len;
adamc@117	1405 }
adamc@117	1406
adamc@311	1407 void uw_write(uw_context ctx, const char* s) {
adamc@311	1408 uw_check(ctx, strlen(s) + 1);
adamc@311	1409 uw_write_unsafe(ctx, s);
adamc@666	1410 *ctx->page.front = 0;
adamc@102	1411 }
adamc@106	1412
adamc@311	1413 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1414 char *result;
adamc@136	1415 int len;
adamc@311	1416 uw_check_heap(ctx, INTS_MAX);
adamc@666	1417 result = ctx->heap.front;
adamc@276	1418 sprintf(result, "%lld%n", n, &len);
adamc@666	1419 ctx->heap.front += len+1;
adamc@136	1420 return result;
adamc@106	1421 }
adamc@106	1422
adamc@311	1423 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1424 char *result;
adamc@136	1425 int len;
adamc@311	1426 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1427 result = ctx->heap.front;
adamc@136	1428 sprintf(result, "%g%n", n, &len);
adamc@666	1429 ctx->heap.front += len+1;
adamc@136	1430 return result;
adamc@106	1431 }
adamc@106	1432
adamc@1054	1433 static int isCont(unsigned char ch) {
adamc@1054	1434 return ch / 64 == 2;
adamc@1054	1435 }
adamc@1054	1436
adamc@311	1437 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1438 int len = strlen(s);
adamc@136	1439 char result, p;
adamc@311	1440 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1441
adamc@666	1442 result = p = ctx->heap.front;
adamc@136	1443
adamc@136	1444 for (; *s; s++) {
adamc@1054	1445 unsigned char c = *s;
adamc@136	1446
adamc@136	1447 if (c == '"') {
adamc@136	1448 strcpy(p, """);
adamc@136	1449 p += 6;
adamc@136	1450 } else if (c == '&') {
adamc@136	1451 strcpy(p, "&");
adamc@136	1452 p += 5;
adamc@136	1453 }
adamc@1059	1454 else
adamc@136	1455 *p++ = c;
adamc@136	1456 }
adamc@136	1457
adamc@137	1458 *p++ = 0;
adamc@666	1459 ctx->heap.front = p;
adamc@136	1460 return result;
adamc@106	1461 }
adamc@106	1462
adamc@1011	1463 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1464 char result, p;
adamc@1011	1465 uw_check_heap(ctx, 7);
adamc@1011	1466
adamc@1011	1467 result = p = ctx->heap.front;
adamc@1011	1468
adamc@1011	1469 if (c == '"') {
adamc@1011	1470 strcpy(p, """);
adamc@1011	1471 p += 6;
adamc@1011	1472 } else if (c == '&') {
adamc@1011	1473 strcpy(p, "&");
adamc@1011	1474 p += 5;
adamc@1011	1475 }
adamc@1059	1476 else
adamc@1011	1477 *p++ = c;
adamc@1011	1478
adamc@1011	1479 *p++ = 0;
adamc@1011	1480 ctx->heap.front = p;
adamc@1011	1481 return result;
adamc@1011	1482 }
adamc@1011	1483
adamc@721	1484 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1485 return s;
adamc@721	1486 }
adamc@721	1487
adamc@311	1488 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1489 int len;
adamc@117	1490
adamc@666	1491 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1492 ctx->page.front += len;
adamc@106	1493 }
adamc@106	1494
adamc@428	1495 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1496 uw_check(ctx, INTS_MAX);
adamc@311	1497 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1498
adamc@428	1499 return uw_unit_v;
adamc@106	1500 }
adamc@106	1501
adamc@428	1502 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1503 int len;
adamc@117	1504
adamc@311	1505 uw_check(ctx, FLOATS_MAX);
adamc@666	1506 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1507 ctx->page.front += len;
adamc@428	1508
adamc@428	1509 return uw_unit_v;
adamc@117	1510 }
adamc@117	1511
adamc@428	1512 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1513 uw_check(ctx, strlen(s) * 6);
adamc@117	1514
adamc@106	1515 for (; *s; s++) {
adamc@1054	1516 unsigned char c = *s;
adamc@106	1517
adamc@106	1518 if (c == '"')
adamc@311	1519 uw_write_unsafe(ctx, """);
adamc@136	1520 else if (c == '&')
adamc@311	1521 uw_write_unsafe(ctx, "&");
adamc@1059	1522 else
adamc@311	1523 uw_writec_unsafe(ctx, c);
adamc@106	1524 }
adamc@428	1525
adamc@428	1526 return uw_unit_v;
adamc@106	1527 }
adamc@120	1528
adamc@1011	1529 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1530 uw_check(ctx, 6);
adamc@1011	1531
adamc@1011	1532 if (c == '"')
adamc@1011	1533 uw_write_unsafe(ctx, """);
adamc@1011	1534 else if (c == '&')
adamc@1011	1535 uw_write_unsafe(ctx, "&");
adamc@1059	1536 else
adamc@1011	1537 uw_writec_unsafe(ctx, c);
adamc@1011	1538
adamc@1011	1539 return uw_unit_v;
adamc@1011	1540 }
adamc@1011	1541
adamc@120	1542
adamc@311	1543 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1544 int len;
adamc@137	1545 char *r;
adamc@137	1546
adamc@311	1547 uw_check_heap(ctx, INTS_MAX);
adamc@666	1548 r = ctx->heap.front;
adamc@276	1549 sprintf(r, "%lld%n", n, &len);
adamc@666	1550 ctx->heap.front += len+1;
adamc@137	1551 return r;
adamc@120	1552 }
adamc@120	1553
adamc@682	1554 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1555 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1556 return "";
adamc@682	1557 else {
adamc@682	1558 int len;
adamc@682	1559 char *r;
adamc@679	1560
adamc@682	1561 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1562 r = ctx->heap.front;
adamc@682	1563 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1564 ctx->heap.front += len+1;
adamc@682	1565 return r;
adamc@682	1566 }
adamc@679	1567 }
adamc@679	1568
adamc@311	1569 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1570 int len;
adamc@137	1571 char *r;
adamc@137	1572
adamc@311	1573 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1574 r = ctx->heap.front;
adamc@137	1575 sprintf(r, "%g%n", n, &len);
adamc@666	1576 ctx->heap.front += len+1;
adamc@137	1577 return r;
adamc@120	1578 }
adamc@120	1579
adamc@311	1580 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1581 char r, p;
adamc@137	1582
adamc@925	1583 if (s[0] == '\0')
adamc@925	1584 return "_";
adamc@925	1585
adamc@925	1586 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1587
adamc@925	1588 r = p = ctx->heap.front;
adamc@925	1589 if (s[0] == '_')
adamc@925	1590 *p++ = '_';
adamc@925	1591
adamc@925	1592 for (; *s; s++) {
adamc@137	1593 char c = *s;
adamc@137	1594
adamc@137	1595 if (c == ' ')
adamc@137	1596 *p++ = '+';
adamc@137	1597 else if (isalnum(c))
adamc@137	1598 *p++ = c;
adamc@137	1599 else {
adamc@137	1600 sprintf(p, "%%%02X", c);
adamc@137	1601 p += 3;
adamc@137	1602 }
adamc@137	1603 }
adamc@137	1604
adamc@137	1605 *p++ = 0;
adamc@666	1606 ctx->heap.front = p;
adamc@137	1607 return r;
adamc@120	1608 }
adamc@120	1609
adamc@311	1610 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1611 if (b == uw_Basis_False)
adamc@186	1612 return "0";
adamc@186	1613 else
adamc@186	1614 return "1";
adamc@186	1615 }
adamc@186	1616
adamc@311	1617 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1618 int len;
adamc@120	1619
adamc@666	1620 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1621 ctx->page.front += len;
adamc@120	1622 }
adamc@120	1623
adamc@428	1624 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1625 uw_check(ctx, INTS_MAX);
adamc@311	1626 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1627
adamc@428	1628 return uw_unit_v;
adamc@120	1629 }
adamc@120	1630
adamc@682	1631 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1632 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1633 int len;
adamc@682	1634
adamc@682	1635 uw_check(ctx, INTS_MAX + 1);
adamc@682	1636 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1637 ctx->page.front += len;
adamc@682	1638 }
adamc@682	1639
adamc@679	1640 return uw_unit_v;
adamc@679	1641 }
adamc@679	1642
adamc@428	1643 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1644 int len;
adamc@120	1645
adamc@311	1646 uw_check(ctx, FLOATS_MAX);
adamc@666	1647 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1648 ctx->page.front += len;
adamc@428	1649
adamc@428	1650 return uw_unit_v;
adamc@120	1651 }
adamc@120	1652
adamc@488	1653 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@488	1654 return uw_Basis_urlifyInt(ctx, t);
adamc@488	1655 }
adamc@488	1656
adamc@428	1657 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1658 if (s[0] == '\0') {
adamc@925	1659 uw_check(ctx, 1);
adamc@925	1660 uw_writec_unsafe(ctx, '_');
adamc@925	1661 return uw_unit_v;
adamc@925	1662 }
adamc@925	1663
adamc@925	1664 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1665
adamc@925	1666 if (s[0] == '_')
adamc@925	1667 uw_writec_unsafe(ctx, '_');
adamc@120	1668
adamc@120	1669 for (; *s; s++) {
adamc@120	1670 char c = *s;
adamc@120	1671
adamc@120	1672 if (c == ' ')
adamc@311	1673 uw_writec_unsafe(ctx, '+');
adamc@120	1674 else if (isalnum(c))
adamc@311	1675 uw_writec_unsafe(ctx, c);
adamc@120	1676 else {
adamc@666	1677 sprintf(ctx->page.front, "%%%02X", c);
adamc@666	1678 ctx->page.front += 3;
adamc@120	1679 }
adamc@120	1680 }
adamc@428	1681
adamc@428	1682 return uw_unit_v;
adamc@120	1683 }
adamc@120	1684
adamc@428	1685 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1686 if (b == uw_Basis_False)
adamc@311	1687 uw_writec(ctx, '0');
adamc@186	1688 else
adamc@311	1689 uw_writec(ctx, '1');
adamc@428	1690
adamc@428	1691 return uw_unit_v;
adamc@186	1692 }
adamc@186	1693
adamc@120	1694
adamc@311	1695 static char uw_unurlify_advance(char s) {
adamc@144	1696 char *new_s = strchr(s, '/');
adamc@120	1697
adamc@120	1698 if (new_s)
adamc@120	1699 *new_s++ = 0;
adamc@120	1700 else
adamc@144	1701 new_s = strchr(s, 0);
adamc@144	1702
adamc@144	1703 return new_s;
adamc@144	1704 }
adamc@144	1705
adamc@311	1706 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1707 char new_s = uw_unurlify_advance(s);
adamc@311	1708 uw_Basis_int r;
adamc@120	1709
adamc@276	1710 r = atoll(*s);
adamc@120	1711 *s = new_s;
adamc@120	1712 return r;
adamc@120	1713 }
adamc@120	1714
adamc@311	1715 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1716 char new_s = uw_unurlify_advance(s);
adamc@311	1717 uw_Basis_float r;
adamc@120	1718
adamc@120	1719 r = atof(*s);
adamc@120	1720 *s = new_s;
adamc@120	1721 return r;
adamc@120	1722 }
adamc@120	1723
adamc@488	1724 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adamc@488	1725 return uw_Basis_unurlifyInt(ctx, s);
adamc@488	1726 }
adamc@488	1727
adamc@1023	1728 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1729 char s1, s2 = s;
adamc@144	1730 int n;
adamc@136	1731
adamc@1023	1732 if (!fromClient) {
adamc@1023	1733 if (*s2 == '_')
adamc@1023	1734 ++s2;
adamc@1023	1735 else if (s2[0] == '%' && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1736 s2 += 3;
adamc@1023	1737 }
adamc@925	1738
adamc@927	1739 for (s1 = r; *s2; ++s1, ++s2) {
adamc@136	1740 char c = *s2;
adamc@136	1741
adamc@136	1742 switch (c) {
adamc@136	1743 case '+':
adamc@136	1744 *s1 = ' ';
adamc@136	1745 break;
adamc@136	1746 case '%':
adamc@169	1747 if (s2[1] == 0)
adamc@311	1748 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1749 if (s2[2] == 0)
adamc@311	1750 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1751 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@311	1752 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@136	1753 *s1 = n;
adamc@136	1754 s2 += 2;
adamc@136	1755 break;
adamc@136	1756 default:
adamc@136	1757 *s1 = c;
adamc@136	1758 }
adamc@136	1759 }
adamc@136	1760 *s1++ = 0;
adamc@144	1761 return s1;
adamc@144	1762 }
adamc@144	1763
adamc@311	1764 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	1765 char new_s = uw_unurlify_advance(s);
adamc@311	1766 uw_Basis_bool r;
adamc@186	1767
adamc@186	1768 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	1769 r = uw_Basis_False;
adamc@186	1770 else
adamc@311	1771 r = uw_Basis_True;
adamc@186	1772
adamc@186	1773 *s = new_s;
adamc@186	1774 return r;
adamc@186	1775 }
adamc@186	1776
adamc@311	1777 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	1778 char new_s = uw_unurlify_advance(s);
adamc@144	1779 char r, s1, *s2;
adamc@144	1780 int len, n;
adamc@144	1781
adamc@200	1782 len = strlen(*s);
adamc@311	1783 uw_check_heap(ctx, len + 1);
adamc@144	1784
adamc@666	1785 r = ctx->heap.front;
adamc@1023	1786 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	1787 *s = new_s;
adamc@1023	1788 return r;
adamc@1023	1789 }
adamc@1023	1790
adamc@1023	1791 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	1792 char new_s = uw_unurlify_advance(s);
adamc@1023	1793 char r, s1, *s2;
adamc@1023	1794 int len, n;
adamc@1023	1795
adamc@1023	1796 len = strlen(*s);
adamc@1023	1797 uw_check_heap(ctx, len + 1);
adamc@1023	1798
adamc@1023	1799 r = ctx->heap.front;
adamc@1023	1800 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	1801 *s = new_s;
adamc@136	1802 return r;
adamc@120	1803 }
adamc@135	1804
adamc@135	1805
adamc@311	1806 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	1807 int len;
adamc@286	1808 char *r;
adamc@286	1809
adamc@311	1810 uw_check_heap(ctx, INTS_MAX);
adamc@666	1811 r = ctx->heap.front;
adamc@286	1812 sprintf(r, "%lld%n", n, &len);
adamc@666	1813 ctx->heap.front += len+1;
adamc@286	1814 return r;
adamc@286	1815 }
adamc@286	1816
adamc@428	1817 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	1818 int len;
adamc@286	1819
adamc@311	1820 uw_check(ctx, INTS_MAX);
adamc@666	1821 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1822 ctx->page.front += len;
adamc@428	1823
adamc@428	1824 return uw_unit_v;
adamc@286	1825 }
adamc@286	1826
adamc@311	1827 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	1828 int len;
adamc@286	1829 char *r;
adamc@286	1830
adamc@311	1831 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1832 r = ctx->heap.front;
adamc@286	1833 sprintf(r, "%g%n", n, &len);
adamc@666	1834 ctx->heap.front += len+1;
adamc@286	1835 return r;
adamc@286	1836 }
adamc@286	1837
adamc@428	1838 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	1839 int len;
adamc@286	1840
adamc@311	1841 uw_check(ctx, FLOATS_MAX);
adamc@666	1842 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1843 ctx->page.front += len;
adamc@428	1844
adamc@428	1845 return uw_unit_v;
adamc@286	1846 }
adamc@286	1847
adamc@311	1848 char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1849 char r, s2;
adamc@137	1850
adamc@311	1851 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	1852
adamc@666	1853 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	1854 unsigned char c = *s;
adamc@137	1855
adamc@137	1856 switch (c) {
adamc@137	1857 case '<':
adamc@137	1858 strcpy(s2, "<");
adamc@137	1859 s2 += 4;
adamc@137	1860 break;
adamc@137	1861 case '&':
adamc@137	1862 strcpy(s2, "&");
adamc@137	1863 s2 += 5;
adamc@137	1864 break;
adamc@137	1865 default:
adamc@1059	1866 *s2++ = c;
adamc@137	1867 }
adamc@137	1868 }
adamc@137	1869
adamc@137	1870 *s2++ = 0;
adamc@666	1871 ctx->heap.front = s2;
adamc@137	1872 return r;
adamc@135	1873 }
adamc@135	1874
adamc@428	1875 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	1876 uw_check(ctx, strlen(s) * 6);
adamc@135	1877
adamc@135	1878 for (; *s; s++) {
adamc@1054	1879 unsigned char c = *s;
adamc@135	1880
adamc@135	1881 switch (c) {
adamc@135	1882 case '<':
adamc@311	1883 uw_write_unsafe(ctx, "<");
adamc@135	1884 break;
adamc@135	1885 case '&':
adamc@311	1886 uw_write_unsafe(ctx, "&");
adamc@135	1887 break;
adamc@135	1888 default:
adamc@1059	1889 uw_writec_unsafe(ctx, c);
adamc@135	1890 }
adamc@135	1891 }
adamc@428	1892
adamc@428	1893 return uw_unit_v;
adamc@135	1894 }
adamc@180	1895
adamc@311	1896 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1897 if (b == uw_Basis_False)
adamc@286	1898 return "False";
adamc@286	1899 else
adamc@286	1900 return "True";
adamc@286	1901 }
adamc@286	1902
adamc@428	1903 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1904 if (b == uw_Basis_False) {
adamc@311	1905 uw_check(ctx, 6);
adamc@666	1906 strcpy(ctx->page.front, "False");
adamc@666	1907 ctx->page.front += 5;
adamc@286	1908 } else {
adamc@311	1909 uw_check(ctx, 5);
adamc@666	1910 strcpy(ctx->page.front, "True");
adamc@666	1911 ctx->page.front += 4;
adamc@286	1912 }
adamc@428	1913
adamc@428	1914 return uw_unit_v;
adamc@286	1915 }
adamc@286	1916
adamc@436	1917 #define TIME_FMT "%x %X"
adamc@438	1918 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436	1919
adamc@436	1920 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436	1921 size_t len;
adamc@436	1922 char *r;
adamc@436	1923 struct tm stm;
adamc@436	1924
adamc@436	1925 if (localtime_r(&t, &stm)) {
adamc@436	1926 uw_check_heap(ctx, TIMES_MAX);
adamc@666	1927 r = ctx->heap.front;
adamc@436	1928 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	1929 ctx->heap.front += len+1;
adamc@436	1930 return r;
adamc@436	1931 } else
adamc@436	1932 return "<i>Invalid time</i>";
adamc@436	1933 }
adamc@436	1934
adamc@436	1935 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436	1936 size_t len;
adamc@436	1937 char *r;
adamc@436	1938 struct tm stm;
adamc@436	1939
adamc@436	1940 if (localtime_r(&t, &stm)) {
adamc@436	1941 uw_check(ctx, TIMES_MAX);
adamc@666	1942 r = ctx->page.front;
adamc@436	1943 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	1944 ctx->page.front += len;
adamc@436	1945 } else {
adamc@436	1946 uw_check(ctx, 20);
adamc@666	1947 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666	1948 ctx->page.front += 19;
adamc@436	1949 }
adamc@436	1950
adamc@436	1951 return uw_unit_v;
adamc@436	1952 }
adamc@436	1953
adamc@821	1954 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	1955 if (n >= 0 && n < strlen(s))
adamc@821	1956 return s[n];
adamc@821	1957 else
adamc@821	1958 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adamc@821	1959 }
adamc@821	1960
adamc@821	1961 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	1962 if (n >= 0 && n < strlen(s))
adamc@821	1963 return &s[n];
adamc@821	1964 else
adamc@821	1965 uw_error(ctx, FATAL, "Out-of-bounds strsuffix");
adamc@821	1966 }
adamc@821	1967
adamc@828	1968 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	1969 return strlen(s);
adamc@828	1970 }
adamc@828	1971
adamc@829	1972 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	1973 return strchr(s, ch);
adamc@829	1974 }
adamc@829	1975
adamc@831	1976 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	1977 return strcspn(s, chs);
adamc@831	1978 }
adamc@831	1979
adamc@829	1980 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	1981 uw_Basis_string r = strchr(s, ch);
adamc@829	1982 if (r == NULL)
adamc@829	1983 return NULL;
adamc@829	1984 else {
adamc@829	1985 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	1986 *nr = r - s;
adamc@829	1987 return nr;
adamc@829	1988 }
adamc@829	1989 }
adamc@829	1990
adamc@311	1991 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	1992 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	1993 char *s;
adamc@180	1994
adamc@311	1995 uw_check_heap(ctx, len);
adamc@180	1996
adamc@666	1997 s = ctx->heap.front;
adamc@180	1998
adamc@180	1999 strcpy(s, s1);
adamc@180	2000 strcat(s, s2);
adamc@666	2001 ctx->heap.front += len;
adamc@180	2002
adamc@180	2003 return s;
adamc@180	2004 }
adamc@278	2005
adamc@829	2006 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2007 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2008
adamc@829	2009 if (start < 0)
adamc@829	2010 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2011 if (len < 0)
adamc@829	2012 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2013 if (start + len > full_len)
adamc@829	2014 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2015
adamc@829	2016 if (start + len == full_len)
adamc@829	2017 return &s[start];
adamc@829	2018 else {
adamc@829	2019 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2020 memcpy(r, s+start, len);
adamc@829	2021 r[len] = 0;
adamc@829	2022 return r;
adamc@829	2023 }
adamc@829	2024
adamc@829	2025 }
adamc@829	2026
adamc@1023	2027 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2028 char *r;
adamc@1023	2029
adamc@1023	2030 uw_check_heap(ctx, 2);
adamc@1023	2031 r = ctx->heap.front;
adamc@1023	2032 r[0] = ch;
adamc@1023	2033 r[1] = 0;
adamc@1023	2034
adamc@1023	2035 ctx->heap.front += 2;
adamc@1023	2036
adamc@1023	2037 return r;
adamc@1023	2038 }
adamc@1023	2039
adamc@737	2040 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2041 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2042 char *s;
adamc@278	2043
adamc@311	2044 uw_check_heap(ctx, len);
adamc@278	2045
adamc@666	2046 s = ctx->heap.front;
adamc@278	2047
adamc@278	2048 strcpy(s, s1);
adamc@666	2049 ctx->heap.front += len;
adamc@278	2050
adamc@278	2051 return s;
adamc@278	2052 }
adamc@280	2053
adamc@737	2054 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2055 if (s1)
adamc@737	2056 return uw_strdup(ctx, s1);
adamc@493	2057 else
adamc@493	2058 return NULL;
adamc@493	2059 }
adamc@493	2060
adamc@742	2061 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2062 char *r = uw_malloc(ctx, len);
adamc@742	2063 memcpy(r, p, len);
adamc@742	2064 return r;
adamc@742	2065 }
adamc@280	2066
adamc@879	2067 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2068
adamc@311	2069 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2070 int len;
adamc@281	2071 char *r;
adamc@281	2072
adamc@311	2073 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2074 r = ctx->heap.front;
adamc@879	2075 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2076 ctx->heap.front += len+1;
adamc@281	2077 return r;
adamc@281	2078 }
adamc@281	2079
adamc@467	2080 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2081 if (n == NULL)
adamc@467	2082 return "NULL";
adamc@467	2083 else
adamc@467	2084 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2085 }
adamc@467	2086
adamc@879	2087 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879	2088
adamc@311	2089 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2090 int len;
adamc@281	2091 char *r;
adamc@281	2092
adamc@311	2093 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2094 r = ctx->heap.front;
adamc@879	2095 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2096 ctx->heap.front += len+1;
adamc@281	2097 return r;
adamc@281	2098 }
adamc@281	2099
adamc@467	2100 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2101 if (n == NULL)
adamc@467	2102 return "NULL";
adamc@467	2103 else
adamc@467	2104 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2105 }
adamc@467	2106
adamc@879	2107 int uw_Estrings = 1;
adamc@879	2108 char *uw_sqlsuffixString = "::text";
adamc@1011	2109 char *uw_sqlsuffixChar = "::char";
adamc@281	2110
adamc@311	2111 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2112 char r, s2;
adamc@280	2113
adamc@879	2114 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2115
adamc@666	2116 r = s2 = ctx->heap.front;
adamc@879	2117 if (uw_Estrings)
adamc@879	2118 *s2++ = 'E';
adamc@280	2119 *s2++ = '\'';
adamc@280	2120
adamc@280	2121 for (; *s; s++) {
adamc@280	2122 char c = *s;
adamc@280	2123
adamc@280	2124 switch (c) {
adamc@280	2125 case '\'':
adamc@885	2126 if (uw_Estrings)
adamc@885	2127 strcpy(s2, "\\'");
adamc@885	2128 else
adamc@885	2129 strcpy(s2, "''");
adamc@280	2130 s2 += 2;
adamc@280	2131 break;
adamc@280	2132 case '\\':
adamc@885	2133 if (uw_Estrings) {
adamc@885	2134 strcpy(s2, "\\\\");
adamc@885	2135 s2 += 2;
adamc@885	2136 } else
adamc@885	2137 *s2++ = '\\';
adamc@280	2138 break;
adamc@280	2139 default:
adamc@280	2140 if (isprint(c))
adamc@280	2141 *s2++ = c;
adamc@879	2142 else if (uw_Estrings) {
adamc@737	2143 sprintf(s2, "\\%03o", c);
adamc@280	2144 s2 += 4;
adamc@280	2145 }
adamc@879	2146 else
adamc@879	2147 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280	2148 }
adamc@280	2149 }
adamc@280	2150
adamc@879	2151 *s2++ = '\'';
adamc@879	2152 strcpy(s2, uw_sqlsuffixString);
adamc@879	2153 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2154 return r;
adamc@280	2155 }
adamc@281	2156
adamc@1011	2157 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2158 char r, s2;
adamc@1011	2159
adamc@1011	2160 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2161
adamc@1011	2162 r = s2 = ctx->heap.front;
adamc@1011	2163 if (uw_Estrings)
adamc@1011	2164 *s2++ = 'E';
adamc@1011	2165 *s2++ = '\'';
adamc@1011	2166
adamc@1011	2167 switch (c) {
adamc@1011	2168 case '\'':
adamc@1011	2169 if (uw_Estrings)
adamc@1011	2170 strcpy(s2, "\\'");
adamc@1011	2171 else
adamc@1011	2172 strcpy(s2, "''");
adamc@1011	2173 s2 += 2;
adamc@1011	2174 break;
adamc@1011	2175 case '\\':
adamc@1011	2176 if (uw_Estrings) {
adamc@1011	2177 strcpy(s2, "\\\\");
adamc@1011	2178 s2 += 2;
adamc@1011	2179 } else
adamc@1011	2180 *s2++ = '\\';
adamc@1011	2181 break;
adamc@1011	2182 default:
adamc@1011	2183 if (isprint(c))
adamc@1011	2184 *s2++ = c;
adamc@1011	2185 else if (uw_Estrings) {
adamc@1011	2186 sprintf(s2, "\\%03o", c);
adamc@1011	2187 s2 += 4;
adamc@1011	2188 }
adamc@1011	2189 else
adamc@1011	2190 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2191 }
adamc@1011	2192
adamc@1011	2193 *s2++ = '\'';
adamc@1011	2194 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2195 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2196 return r;
adamc@1011	2197 }
adamc@1011	2198
adamc@879	2199 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2200
adamc@737	2201 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2202 char r, s2;
adamc@737	2203 size_t i;
adamc@737	2204
adamc@879	2205 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737	2206
adamc@737	2207 r = s2 = ctx->heap.front;
adamc@879	2208 if (uw_Estrings)
adamc@879	2209 *s2++ = 'E';
adamc@737	2210 *s2++ = '\'';
adamc@737	2211
adamc@737	2212 for (i = 0; i < b.size; ++i) {
adamc@737	2213 char c = b.data[i];
adamc@737	2214
adamc@737	2215 switch (c) {
adamc@737	2216 case '\'':
adamc@885	2217 if (uw_Estrings)
adamc@885	2218 strcpy(s2, "\\'");
adamc@885	2219 else
adamc@885	2220 strcpy(s2, "''");
adamc@737	2221 s2 += 2;
adamc@737	2222 break;
adamc@737	2223 case '\\':
adamc@885	2224 if (uw_Estrings) {
adamc@885	2225 strcpy(s2, "\\\\\\\\");
adamc@885	2226 s2 += 4;
adamc@885	2227 } else
adamc@885	2228 *s2++ = '\\';
adamc@737	2229 break;
adamc@737	2230 default:
adamc@737	2231 if (isprint(c))
adamc@737	2232 *s2++ = c;
adamc@879	2233 else if (uw_Estrings) {
adamc@737	2234 sprintf(s2, "\\\\%03o", c);
adamc@737	2235 s2 += 5;
adamc@737	2236 }
adamc@879	2237 else
adamc@879	2238 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737	2239 }
adamc@737	2240 }
adamc@737	2241
adamc@879	2242 *s2++ = '\'';
adamc@879	2243 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2244 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2245 return r;
adamc@737	2246 }
adamc@737	2247
adamc@682	2248 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2249 int len;
adamc@682	2250 char *r;
adamc@682	2251 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2252
adamc@682	2253 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2254 r = ctx->heap.front;
adamc@879	2255 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2256 ctx->heap.front += len+1;
adamc@682	2257 return r;
adamc@682	2258 }
adamc@682	2259
adamc@682	2260 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2261 int len;
adamc@682	2262 char *r;
adamc@682	2263 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2264
adamc@682	2265 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2266 r = ctx->heap.front;
adamc@682	2267 sprintf(r, "%lld%n", combo, &len);
adamc@682	2268 ctx->heap.front += len+1;
adamc@682	2269 return r;
adamc@682	2270 }
adamc@682	2271
adamc@879	2272 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2273
adamc@682	2274 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2275 int len;
adamc@682	2276 char *r;
adamc@682	2277
adamc@682	2278 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2279 r = ctx->heap.front;
adamc@879	2280 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2281 ctx->heap.front += len+1;
adamc@682	2282 return r;
adamc@682	2283 }
adamc@682	2284
adamc@682	2285 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2286 int len;
adamc@682	2287 char *r;
adamc@682	2288
adamc@682	2289 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2290 r = ctx->heap.front;
adamc@682	2291 sprintf(r, "%u%n", cli, &len);
adamc@682	2292 ctx->heap.front += len+1;
adamc@682	2293 return r;
adamc@682	2294 }
adamc@682	2295
adamc@467	2296 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2297 if (s == NULL)
adamc@467	2298 return "NULL";
adamc@467	2299 else
adamc@467	2300 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2301 }
adamc@467	2302
adamc@311	2303 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2304 if (b == uw_Basis_False)
adamc@281	2305 return "FALSE";
adamc@281	2306 else
adamc@281	2307 return "TRUE";
adamc@281	2308 }
adamc@282	2309
adamc@467	2310 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2311 if (b == NULL)
adamc@467	2312 return "NULL";
adamc@467	2313 else
adamc@467	2314 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2315 }
adamc@467	2316
adamc@439	2317 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2318 size_t len;
adamc@682	2319 char r, s;
adamc@682	2320 struct tm stm;
adamc@682	2321
adamc@682	2322 if (localtime_r(&t, &stm)) {
adamc@682	2323 s = uw_malloc(ctx, TIMES_MAX);
adamc@995	2324 --stm.tm_hour;
adamc@682	2325 len = strftime(s, TIMES_MAX, TIME_FMT, &stm);
adamc@682	2326 r = uw_malloc(ctx, len + 14);
adamc@682	2327 sprintf(r, "'%s'::timestamp", s);
adamc@682	2328 return r;
adamc@682	2329 } else
adamc@682	2330 return "<Invalid time>";
adamc@682	2331 }
adamc@682	2332
adamc@682	2333 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2334 size_t len;
adamc@439	2335 char *r;
adamc@439	2336 struct tm stm;
adamc@439	2337
adamc@439	2338 if (localtime_r(&t, &stm)) {
adamc@439	2339 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2340 r = ctx->heap.front;
adamc@439	2341 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2342 ctx->heap.front += len+1;
adamc@439	2343 return r;
adamc@439	2344 } else
adamc@439	2345 return "<Invalid time>";
adamc@439	2346 }
adamc@439	2347
adamc@467	2348 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2349 if (t == NULL)
adamc@467	2350 return "NULL";
adamc@467	2351 else
adamc@467	2352 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2353 }
adamc@467	2354
adamc@311	2355 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2356 static uw_Basis_int true = 1;
adamc@311	2357 static uw_Basis_int false = 0;
adamc@282	2358
adamc@311	2359 if (b == uw_Basis_False)
adamc@282	2360 return (char *)&false;
adamc@282	2361 else
adamc@282	2362 return (char *)&true;
adamc@282	2363 }
adamc@284	2364
adamc@311	2365 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2366 int len;
adamc@284	2367 char *r;
adamc@284	2368
adamc@311	2369 uw_check_heap(ctx, INTS_MAX);
adamc@666	2370 r = ctx->heap.front;
adamc@284	2371 sprintf(r, "%lld%n", n, &len);
adamc@666	2372 ctx->heap.front += len+1;
adamc@284	2373 return r;
adamc@284	2374 }
adamc@285	2375
adamc@311	2376 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2377 int len;
adamc@285	2378 char *r;
adamc@285	2379
adamc@311	2380 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2381 r = ctx->heap.front;
adamc@285	2382 sprintf(r, "%g%n", n, &len);
adamc@666	2383 ctx->heap.front += len+1;
adamc@285	2384 return r;
adamc@285	2385 }
adamc@285	2386
adamc@821	2387 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2388 char *r = uw_malloc(ctx, 2);
adamc@821	2389 r[0] = ch;
adamc@821	2390 r[1] = 0;
adamc@821	2391 return r;
adamc@821	2392 }
adamc@821	2393
adamc@311	2394 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2395 if (b == uw_Basis_False)
adamc@285	2396 return "False";
adamc@285	2397 else
adamc@285	2398 return "True";
adamc@285	2399 }
adamc@288	2400
adamc@436	2401 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436	2402 size_t len;
adamc@436	2403 char *r;
adamc@436	2404 struct tm stm;
adamc@436	2405
adamc@436	2406 if (localtime_r(&t, &stm)) {
adamc@436	2407 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2408 r = ctx->heap.front;
adamc@436	2409 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2410 ctx->heap.front += len+1;
adamc@436	2411 return r;
adamc@436	2412 } else
adamc@436	2413 return "<Invalid time>";
adamc@436	2414 }
adamc@288	2415
adamc@311	2416 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2417 char *endptr;
adamc@311	2418 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2419
adamc@288	2420 if (s != '\0' && endptr == '\0') {
adamc@311	2421 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2422 *r = n;
adamc@288	2423 return r;
adamc@288	2424 } else
adamc@288	2425 return NULL;
adamc@288	2426 }
adamc@289	2427
adamc@311	2428 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2429 char *endptr;
adamc@311	2430 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2431
adamc@289	2432 if (s != '\0' && endptr == '\0') {
adamc@311	2433 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2434 *r = n;
adamc@289	2435 return r;
adamc@289	2436 } else
adamc@289	2437 return NULL;
adamc@289	2438 }
adamc@289	2439
adamc@821	2440 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2441 if (s[0] == 0) {
adamc@821	2442 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2443 r[0] = 0;
adamc@821	2444 return r;
adamc@821	2445 } else if (s[1] != 0)
adamc@821	2446 return NULL;
adamc@821	2447 else {
adamc@821	2448 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2449 r[0] = s[0];
adamc@821	2450 return r;
adamc@821	2451 }
adamc@821	2452 }
adamc@821	2453
adamc@311	2454 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2455 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2456 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2457
adamc@289	2458 if (!strcasecmp (s, "True"))
adamc@289	2459 return &true;
adamc@289	2460 else if (!strcasecmp (s, "False"))
adamc@289	2461 return &false;
adamc@289	2462 else
adamc@289	2463 return NULL;
adamc@289	2464 }
adamc@292	2465
adamc@436	2466 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2467 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2468 struct tm stm;
adamc@436	2469
adamc@439	2470 if (dot) {
adamc@439	2471 *dot = 0;
adamc@439	2472 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2473 *dot = '.';
adamc@439	2474 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2475 *r = mktime(&stm);
adamc@439	2476 return r;
adamc@439	2477 }
adamc@439	2478 else {
adamc@439	2479 *dot = '.';
adamc@439	2480 return NULL;
adamc@439	2481 }
adamc@436	2482 }
adamc@439	2483 else {
adamc@439	2484 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2485 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2486 *r = mktime(&stm);
adamc@439	2487 return r;
adamc@439	2488 }
adamc@439	2489 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2490 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2491 *r = mktime(&stm);
adamc@439	2492 return r;
adamc@439	2493 }
adamc@439	2494 else
adamc@439	2495 return NULL;
adamc@439	2496 }
adamc@436	2497 }
adamc@436	2498
adamc@311	2499 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2500 char *endptr;
adamc@311	2501 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2502
adamc@292	2503 if (s != '\0' && endptr == '\0')
adamc@292	2504 return n;
adamc@292	2505 else
adamc@311	2506 uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292	2507 }
adamc@293	2508
adamc@682	2509 #include <errno.h>
adamc@682	2510
adamc@678	2511 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2512 unsigned long long n;
adamc@682	2513
adamc@682	2514 if (sscanf(s, "%llu", &n) < 1)
adamc@682	2515 uw_error(ctx, FATAL, "Can't parse channel: %s", s);
adamc@682	2516 else {
adamc@682	2517 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2518 return ch;
adamc@682	2519 }
adamc@682	2520 }
adamc@682	2521
adamc@682	2522 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2523 char *endptr;
adamc@682	2524 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2525
adamc@678	2526 if (s != '\0' && endptr == '\0')
adamc@678	2527 return n;
adamc@678	2528 else
adamc@682	2529 uw_error(ctx, FATAL, "Can't parse client: %s", s);
adamc@678	2530 }
adamc@678	2531
adamc@311	2532 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2533 char *endptr;
adamc@311	2534 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2535
adamc@293	2536 if (s != '\0' && endptr == '\0')
adamc@293	2537 return n;
adamc@293	2538 else
adamc@311	2539 uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293	2540 }
adamc@293	2541
adamc@821	2542 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2543 if (s[0] == 0)
adamc@821	2544 return 0;
adamc@821	2545 else if (s[1] != 0)
adamc@821	2546 uw_error(ctx, FATAL, "Can't parse char: %s", s);
adamc@821	2547 else
adamc@821	2548 return s[0];
adamc@821	2549 }
adamc@821	2550
adamc@311	2551 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2552 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2553 return uw_Basis_True;
adamc@296	2554 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2555 return uw_Basis_False;
adamc@293	2556 else
adamc@311	2557 uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293	2558 }
adamc@436	2559
adamc@436	2560 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2561 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2562 struct tm stm = {};
adamc@436	2563
adamc@438	2564 if (dot) {
adamc@438	2565 *dot = 0;
adamc@438	2566 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2567 *dot = '.';
adamc@438	2568 return mktime(&stm);
adamc@438	2569 }
adamc@438	2570 else {
adamc@438	2571 *dot = '.';
adamc@438	2572 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2573 }
adamc@438	2574 }
adamc@438	2575 else {
adamc@439	2576 if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439	2577 return mktime(&stm);
adamc@439	2578 else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438	2579 return mktime(&stm);
adamc@438	2580 else
adamc@438	2581 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2582 }
adamc@436	2583 }
adamc@457	2584
adamc@939	2585 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adamc@939	2586 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@939	2587 struct tm stm = {};
adamc@939	2588
adamc@939	2589 if (dot) {
adamc@939	2590 *dot = 0;
adamc@939	2591 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@939	2592 *dot = '.';
adamc@939	2593 return mktime(&stm);
adamc@939	2594 }
adamc@939	2595 else {
adamc@939	2596 *dot = '.';
adamc@939	2597 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2598 }
adamc@939	2599 }
adamc@939	2600 else {
adamc@939	2601 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@939	2602 return mktime(&stm);
adamc@939	2603 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@939	2604 return mktime(&stm);
adamc@939	2605 } else
adamc@939	2606 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2607 }
adamc@939	2608 }
adamc@939	2609
adamc@742	2610 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	2611 char *r = ctx->heap.front;
adamc@742	2612 uw_Basis_blob b = {len, r};
adamc@742	2613
adamc@742	2614 uw_check_heap(ctx, len);
adamc@742	2615
adamc@742	2616 while (*s) {
adamc@742	2617 if (s[0] == '\\') {
adamc@742	2618 if (s[1] == '\\') {
adamc@742	2619 *r++ = '\\';
adamc@742	2620 s += 2;
adamc@742	2621 } else if (isdigit(s[1]) && isdigit(s[2]) && isdigit(s[3])) {
adamc@742	2622 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	2623 s += 4;
adamc@742	2624 }
adamc@742	2625 else {
adamc@742	2626 *r++ = '\\';
adamc@742	2627 ++s;
adamc@742	2628 }
adamc@742	2629 } else {
adamc@742	2630 *r++ = s[0];
adamc@742	2631 ++s;
adamc@742	2632 }
adamc@742	2633 }
adamc@742	2634
adamc@742	2635 b.size = r - ctx->heap.front;
adamc@742	2636 ctx->heap.front = r;
adamc@742	2637 return b;
adamc@742	2638 }
adamc@742	2639
adamc@1052	2640 #define THE_PAST "expires=Mon, 01-01-1970 00:00:00 GMT"
adamc@1052	2641
adamc@463	2642 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	2643 int len = strlen(c);
adamc@854	2644 char *p = ctx->outHeaders.start;
adamc@474	2645
adamc@474	2646 while (p = strstr(p, "\nSet-Cookie: ")) {
adamc@474	2647 char *p2;
adamc@474	2648 p += 13;
adamc@474	2649 p2 = strchr(p, '=');
adamc@474	2650
adamc@474	2651 if (p2) {
adamc@474	2652 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	2653
adamc@474	2654 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	2655 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	2656 return NULL;
adamc@1052	2657 else {
adamc@1052	2658 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	2659 memcpy(ret, p2+1, sz);
adamc@1052	2660 ret[sz] = 0;
adamc@1052	2661 return ret;
adamc@1052	2662 }
adamc@474	2663 }
adamc@474	2664 }
adamc@474	2665 }
adamc@463	2666
adamc@854	2667 if (p = uw_Basis_requestHeader(ctx, "Cookie")) {
adamc@1051	2668 char *p2;
adamc@1051	2669
adamc@854	2670 while (1) {
adamc@1051	2671 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1051	2672 if (p2 = strchr(p, ';')) {
adamc@1051	2673 size_t n = p2 - (p + len);
adamc@1051	2674 char *r = uw_malloc(ctx, n);
adamc@1051	2675 memcpy(r, p + 1 + len, n-1);
adamc@1051	2676 r[n-1] = 0;
adamc@1051	2677 return r;
adamc@1051	2678 } else
adamc@1051	2679 return p + 1 + len;
adamc@1051	2680 } else if (p = strchr(p, ';'))
adamc@854	2681 p += 2;
adamc@463	2682 else
adamc@463	2683 return NULL;
adamc@463	2684 }
adamc@463	2685 }
adamc@792	2686
adamc@792	2687 return NULL;
adamc@457	2688 }
adamc@462	2689
adamc@1050	2690 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	2691 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	2692 uw_write_header(ctx, c);
adamc@462	2693 uw_write_header(ctx, "=");
adamc@462	2694 uw_write_header(ctx, v);
adamc@466	2695 uw_write_header(ctx, "; path=");
adamc@466	2696 uw_write_header(ctx, prefix);
adamc@1050	2697 if (expires) {
adamc@1050	2698 char formatted[30];
adamc@1050	2699 struct tm tm;
adamc@1050	2700
adamc@1050	2701 gmtime_r(expires, &tm);
adamc@1050	2702
adamc@1050	2703 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	2704
adamc@1050	2705 uw_write_header(ctx, "; expires=");
adamc@1050	2706 uw_write_header(ctx, formatted);
adamc@1050	2707 }
adamc@1050	2708 if (secure)
adamc@1050	2709 uw_write_header(ctx, "; secure");
adamc@462	2710 uw_write_header(ctx, "\r\n");
adamc@462	2711
adamc@462	2712 return uw_unit_v;
adamc@462	2713 }
adamc@667	2714
adamc@1050	2715 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	2716 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	2717 uw_write_header(ctx, c);
adamc@1050	2718 uw_write_header(ctx, "=; path=");
adamc@1050	2719 uw_write_header(ctx, prefix);
adamc@1052	2720 uw_write_header(ctx, "; " THE_PAST "\r\n");
adamc@1050	2721
adamc@1050	2722 return uw_unit_v;
adamc@1050	2723 }
adamc@1050	2724
adamc@682	2725 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	2726 unsigned i;
adamc@682	2727 delta *d;
adamc@671	2728
adamc@682	2729 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	2730 if (ctx->deltas[i].client == client)
adamc@682	2731 return &ctx->deltas[i];
adamc@671	2732
adamc@682	2733 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@682	2734 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adamc@682	2735 buf_init(&ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	2736 }
adamc@671	2737
adamc@682	2738 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	2739 d->client = client;
adamc@682	2740 buf_reset(&d->msgs);
adamc@682	2741 return d;
adamc@671	2742 }
adamc@671	2743
adamc@668	2744 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	2745 if (ctx->client == NULL)
adamc@682	2746 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	2747
adamc@682	2748 return new_channel(ctx->client);
adamc@668	2749 }
adamc@668	2750
adamc@668	2751 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	2752 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	2753 size_t len;
adamc@682	2754 int preLen;
adamc@682	2755 char pre[INTS_MAX + 2];
adamc@668	2756
adamc@682	2757 len = strlen(msg);
adamc@682	2758
adamc@682	2759 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	2760
adamc@682	2761 buf_append(&d->msgs, pre, preLen);
adamc@682	2762 buf_append(&d->msgs, msg, len);
adamc@682	2763 buf_append(&d->msgs, "\n", 1);
adamc@671	2764
adamc@671	2765 return uw_unit_v;
adamc@668	2766 }
adamc@671	2767
adamc@671	2768 int uw_db_commit(uw_context);
adamc@671	2769 int uw_db_rollback(uw_context);
adamc@671	2770
adamc@671	2771 void uw_commit(uw_context ctx) {
adamc@682	2772 unsigned i;
adamc@671	2773
adamc@771	2774 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2775 if (ctx->transactionals[i].rollback != NULL)
adamc@771	2776 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771	2777
adamc@771	2778 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2779 if (ctx->transactionals[i].rollback == NULL)
adamc@771	2780 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771	2781
adamc@771	2782 if (uw_db_commit(ctx))
adamc@671	2783 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@682	2784
adamc@682	2785 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	2786 delta *d = &ctx->deltas[i];
adamc@682	2787 client *c = find_client(d->client);
adamc@682	2788
adamc@682	2789 assert (c != NULL && c->mode == USED);
adamc@682	2790
adamc@685	2791 client_send(c, &d->msgs);
adamc@682	2792 }
adamc@682	2793
adamc@682	2794 if (ctx->client)
adamc@685	2795 release_client(ctx->client);
adamc@771	2796
adamc@771	2797 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2798 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@916	2799
adamc@916	2800 // Splice script data into appropriate part of page
adamc@1065	2801 if (ctx->returning_indirectly \|\| ctx->script_header[0] == 0) {
adamc@995	2802 char *start = strstr(ctx->page.start, "<sc>");
adamc@995	2803 if (start) {
adamc@995	2804 memmove(start, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 4);
adamc@995	2805 ctx->page.front -= 4;
adamc@995	2806 }
adamc@995	2807 } else if (buf_used(&ctx->script) == 0) {
adamc@916	2808 size_t len = strlen(ctx->script_header);
adamc@916	2809 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2810 if (start) {
adamc@916	2811 buf_check(&ctx->page, buf_used(&ctx->page) - 4 + len);
adamc@917	2812 start = strstr(ctx->page.start, "<sc>");
adamc@916	2813 memmove(start + len, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2814 ctx->page.front += len - 4;
adamc@916	2815 memcpy(start, ctx->script_header, len);
adamc@916	2816 }
adamc@916	2817 } else {
adamc@916	2818 size_t lenH = strlen(ctx->script_header), len = buf_used(&ctx->script);
adamc@916	2819 size_t lenP = lenH + 40 + len;
adamc@916	2820 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2821 if (start) {
adamc@916	2822 buf_check(&ctx->page, buf_used(&ctx->page) - 4 + lenP);
adamc@917	2823 start = strstr(ctx->page.start, "<sc>");
adamc@916	2824 memmove(start + lenP, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2825 ctx->page.front += lenP - 4;
adamc@916	2826 memcpy(start, ctx->script_header, lenH);
adamc@916	2827 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916	2828 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916	2829 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916	2830 }
adamc@916	2831 }
adamc@671	2832 }
adamc@671	2833
adamc@671	2834 int uw_rollback(uw_context ctx) {
adamc@771	2835 size_t i;
adamc@885	2836 cleanup *cl;
adamc@771	2837
adamc@682	2838 if (ctx->client)
adamc@685	2839 release_client(ctx->client);
adamc@671	2840
adamc@885	2841 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@885	2842 cl->func(cl->arg);
adamc@885	2843
adamc@885	2844 ctx->cleanup_front = ctx->cleanup;
adamc@885	2845
adamc@771	2846 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2847 if (ctx->transactionals[i].rollback != NULL)
adamc@771	2848 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@771	2849
adamc@771	2850 for (i = 0; i < ctx->used_transactionals; ++i)
adamc@771	2851 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@771	2852
adamc@671	2853 return uw_db_rollback(ctx);
adamc@671	2854 }
adamc@683	2855
adamc@771	2856 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adamc@771	2857 uw_callback free) {
adamc@771	2858 if (commit == NULL)
adamc@771	2859 uw_error(ctx, FATAL, "uw_register_transactional: NULL commit callback");
adamc@771	2860
adamc@771	2861 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@771	2862 ctx->transactionals = realloc(ctx->transactionals, ctx->used_transactionals+1);
adamc@771	2863 ++ctx->n_transactionals;
adamc@771	2864 }
adamc@771	2865
adamc@771	2866 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	2867 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	2868 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	2869 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	2870 }
adamc@771	2871
adamc@683	2872
adamc@683	2873 // "Garbage collection"
adamc@683	2874
adamc@683	2875 void uw_expunger(uw_context ctx, uw_Basis_client cli);
adamc@683	2876
adamc@683	2877 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli) {
adamc@683	2878 int r = setjmp(ctx->jmp_buf);
adamc@683	2879
adamc@684	2880 if (r == 0) {
adamc@684	2881 if (uw_db_begin(ctx))
adamc@684	2882 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@683	2883 uw_expunger(ctx, cli);
adamc@684	2884 if (uw_db_commit(ctx))
adamc@684	2885 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@684	2886 }
adamc@683	2887
adamc@683	2888 return r;
adamc@683	2889 }
adamc@683	2890
adamc@683	2891 void uw_prune_clients(uw_context ctx) {
adamc@683	2892 client c, next, *prev = NULL;
adamc@683	2893 time_t cutoff;
adamc@683	2894
adamc@683	2895 cutoff = time(NULL) - uw_timeout;
adamc@683	2896
adamc@683	2897 pthread_mutex_lock(&clients_mutex);
adamc@683	2898
adamc@683	2899 for (c = clients_used; c; c = next) {
adamc@683	2900 next = c->next;
adamc@683	2901 pthread_mutex_lock(&c->lock);
adamc@685	2902 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	2903 failure_kind fk = UNLIMITED_RETRY;
adamc@683	2904 if (prev)
adamc@683	2905 prev->next = next;
adamc@683	2906 else
adamc@683	2907 clients_used = next;
adamc@684	2908 uw_reset(ctx);
adamc@683	2909 while (fk == UNLIMITED_RETRY) {
adamc@683	2910 fk = uw_expunge(ctx, c->id);
adamc@684	2911 if (fk == UNLIMITED_RETRY) {
adamc@684	2912 uw_db_rollback(ctx);
adamc@684	2913 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	2914 }
adamc@683	2915 }
adamc@684	2916 if (fk == SUCCESS)
adamc@684	2917 free_client(c);
adamc@684	2918 else {
adamc@684	2919 uw_db_rollback(ctx);
adamc@856	2920 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@684	2921 }
adamc@683	2922 }
adamc@683	2923 else
adamc@683	2924 prev = c;
adamc@683	2925 pthread_mutex_unlock(&c->lock);
adamc@683	2926 }
adamc@683	2927
adamc@683	2928 pthread_mutex_unlock(&clients_mutex);
adamc@683	2929 }
adamc@687	2930
adamc@687	2931 void uw_initializer(uw_context ctx);
adamc@687	2932
adamc@687	2933 failure_kind uw_initialize(uw_context ctx) {
adamc@687	2934 int r = setjmp(ctx->jmp_buf);
adamc@687	2935
adamc@687	2936 if (r == 0) {
adamc@687	2937 if (uw_db_begin(ctx))
adamc@687	2938 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@687	2939 uw_initializer(ctx);
adamc@687	2940 if (uw_db_commit(ctx))
adamc@687	2941 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	2942 }
adamc@687	2943
adamc@687	2944 return r;
adamc@687	2945 }
adamc@717	2946
adamc@770	2947 extern int uw_check_url(const char *);
adamc@770	2948 extern int uw_check_mime(const char *);
adamc@770	2949
adamc@1065	2950 static int url_bad(uw_Basis_string s) {
adamc@1065	2951 for (; *s; ++s)
adamc@1065	2952 if (!isgraph(*s))
adamc@1065	2953 return 1;
adamc@1065	2954
adamc@1065	2955 return 0;
adamc@1065	2956 }
adamc@1065	2957
adamc@717	2958 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	2959 if (url_bad(s))
adamc@1065	2960 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	2961 if (uw_check_url(s))
adamc@770	2962 return s;
adamc@770	2963 else
adamc@770	2964 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	2965 }
adamc@734	2966
adamc@770	2967 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	2968 if (url_bad(s))
adamc@1065	2969 return NULL;
adamc@770	2970 if (uw_check_url(s))
adamc@770	2971 return s;
adamc@770	2972 else
adamc@770	2973 return NULL;
adamc@770	2974 }
adamc@770	2975
adamc@770	2976 int mime_format(const char *s) {
adamc@770	2977 for (; *s; ++s)
adamc@770	2978 if (!isalnum(s) && s != '/' && s != '-' && s != '.')
adamc@770	2979 return 0;
adamc@770	2980
adamc@770	2981 return 1;
adamc@770	2982 }
adamc@770	2983
adamc@741	2984 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	2985 if (!mime_format(s))
adamc@770	2986 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	2987
adamc@770	2988 if (uw_check_mime(s))
adamc@770	2989 return s;
adamc@770	2990 else
adamc@770	2991 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	2992 }
adamc@770	2993
adamc@770	2994 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	2995 if (!mime_format(s))
adamc@770	2996 return NULL;
adamc@770	2997
adamc@770	2998 if (uw_check_mime(s))
adamc@770	2999 return s;
adamc@770	3000 else
adamc@770	3001 return NULL;
adamc@741	3002 }
adamc@741	3003
adamc@734	3004 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3005 return s ? s : "";
adamc@734	3006 }
adamc@734	3007
adamc@734	3008 extern int uw_hash_blocksize;
adamc@734	3009
adamc@734	3010 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3011 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3012 int i;
adamc@734	3013
adamc@734	3014 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3015 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3016
adamc@734	3017 return r;
adamc@734	3018 }
adamc@734	3019
adamc@734	3020 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@734	3021 return uw_cookie_sig(ctx);
adamc@734	3022 }
adamc@737	3023
adamc@737	3024 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3025 return f.name;
adamc@737	3026 }
adamc@737	3027
adamc@740	3028 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3029 return f.type;
adamc@740	3030 }
adamc@740	3031
adamc@745	3032 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3033 return b.size;
adamc@745	3034 }
adamc@745	3035
adamc@737	3036 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3037 return f.data;
adamc@737	3038 }
adamc@741	3039
adamc@741	3040 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3041 cleanup *cl;
adamc@741	3042 int len;
adamc@741	3043
adamc@1065	3044 ctx->returning_indirectly = 1;
adamc@741	3045 buf_reset(&ctx->outHeaders);
adamc@741	3046 buf_reset(&ctx->page);
adamc@741	3047
adamc@856	3048 uw_write_header(ctx, on_success);
adamc@856	3049 uw_write_header(ctx, "Content-Type: ");
adamc@741	3050 uw_write_header(ctx, mimeType);
adamc@741	3051 uw_write_header(ctx, "\r\nContent-Length: ");
adamc@741	3052 buf_check(&ctx->outHeaders, INTS_MAX);
adamc@741	3053 sprintf(ctx->outHeaders.front, "%d%n", b.size, &len);
adamc@741	3054 ctx->outHeaders.front += len;
adamc@1066	3055 uw_write_header(ctx, "\r\n");
adamc@741	3056
adamc@741	3057 buf_append(&ctx->page, b.data, b.size);
adamc@741	3058
adamc@741	3059 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3060 cl->func(cl->arg);
adamc@741	3061
adamc@741	3062 ctx->cleanup_front = ctx->cleanup;
adamc@741	3063
adamc@1065	3064 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3065 }
adamc@1065	3066
adamc@1065	3067 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3068 cleanup *cl;
adamc@1065	3069 int len;
adamc@1066	3070 char *s;
adamc@1065	3071
adamc@1065	3072 ctx->returning_indirectly = 1;
adamc@1066	3073 buf_reset(&ctx->page);
adamc@1066	3074 buf_check(&ctx->page, buf_used(&ctx->outHeaders)+1);
adamc@1066	3075 memcpy(ctx->page.start, ctx->outHeaders.start, buf_used(&ctx->outHeaders));
adamc@1066	3076 ctx->page.start[buf_used(&ctx->outHeaders)] = 0;
adamc@1065	3077 buf_reset(&ctx->outHeaders);
adamc@1065	3078
adamc@1065	3079 uw_write_header(ctx, on_redirect);
adamc@1066	3080
adamc@1066	3081 s = strchr(ctx->page.start, '\n');
adamc@1066	3082 if (s) {
adamc@1066	3083 char *s2;
adamc@1066	3084 for (++s; s2 = strchr(s, '\n'); s = s2+1) {
adamc@1066	3085 *s2 = 0;
adamc@1066	3086 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3087 uw_write_header(ctx, s);
adamc@1066	3088 uw_write_header(ctx, "\n");
adamc@1066	3089 }
adamc@1066	3090 }
adamc@1066	3091 }
adamc@1066	3092
adamc@1065	3093 uw_write_header(ctx, "Location: ");
adamc@1065	3094 uw_write_header(ctx, url);
adamc@1065	3095 uw_write_header(ctx, "\r\n\r\n");
adamc@1065	3096
adamc@1065	3097 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3098 cl->func(cl->arg);
adamc@1065	3099
adamc@1065	3100 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3101
adamc@1065	3102 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3103 }
adamc@874	3104
adamc@874	3105 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adamc@874	3106 uw_Basis_string r = uw_malloc(ctx, strlen(s) + 1);
adamc@874	3107
adamc@874	3108 for (; *s; ++s) {
adamc@874	3109 if (s[0] == '\'') {
adamc@874	3110 *r++ = '\'';
adamc@874	3111 for (++s; *s; ++s) {
adamc@874	3112 if (s[0] == '\'') {
adamc@874	3113 *r++ = '\'';
adamc@874	3114 break;
adamc@874	3115 } else if (s[0] == '\\') {
adamc@874	3116 if (s[1] == '\\') {
adamc@874	3117 *r++ = '\\';
adamc@874	3118 *r++ = '\\';
adamc@874	3119 ++s;
adamc@874	3120 } else if (s[1] == '\'') {
adamc@874	3121 *r++ = '\\';
adamc@874	3122 *r++ = '\'';
adamc@874	3123 ++s;
adamc@874	3124 } else
adamc@874	3125 *r++ = '\'';
adamc@874	3126 } else
adamc@874	3127 *r++ = s[0];
adamc@874	3128 }
adamc@874	3129 if (*s == 0) break;
adamc@874	3130 } else if (s[0] == 'T' && s[1] == '.')
adamc@874	3131 ++s;
adamc@874	3132 else
adamc@874	3133 *r++ = s[0];
adamc@874	3134 }
adamc@874	3135
adamc@874	3136 return r;
adamc@874	3137 }
adamc@874	3138
adamc@922	3139 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3140 va_list ap;
adamc@922	3141 size_t len = 1;
adamc@922	3142 char s, r, *s2;
adamc@922	3143
adamc@922	3144 va_start(ap, ctx);
adamc@922	3145 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3146 len += strlen(s);
adamc@922	3147 va_end(ap);
adamc@922	3148
adamc@922	3149 r = uw_malloc(ctx, len);
adamc@922	3150 va_start(ap, ctx);
adamc@922	3151 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3152 while (*s)
adamc@922	3153 s2++ = s++;
adamc@922	3154 va_end(ap);
adamc@922	3155 *s2 = 0;
adamc@922	3156
adamc@922	3157 return r;
adamc@922	3158 }
adamc@1006	3159
adamc@1050	3160 const uw_Basis_time minTime = 0;
adamc@1050	3161
adamc@1006	3162 uw_Basis_time uw_Basis_now(uw_context ctx) {
adamc@1006	3163 return time(NULL);
adamc@1006	3164 }
adamc@1061	3165
adamc@1061	3166 void uw_get_global(uw_context ctx, char name) {
adamc@1061	3167 int i;
adamc@1061	3168
adamc@1061	3169 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3170 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	3171 return ctx->globals[i].data;
adamc@1061	3172
adamc@1061	3173 return NULL;
adamc@1061	3174 }
adamc@1061	3175
adamc@1061	3176 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	3177 int i;
adamc@1061	3178
adamc@1061	3179 if (data == NULL) uw_error(ctx, FATAL, "NULL data value for global '%s'", name);
adamc@1061	3180
adamc@1061	3181 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3182 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1061	3183 if (ctx->globals[i].data)
adamc@1061	3184 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	3185 ctx->globals[i].data = data;
adamc@1061	3186 ctx->globals[i].free = free;
adamc@1061	3187 return;
adamc@1061	3188 }
adamc@1061	3189
adamc@1061	3190 ++ctx->n_globals;
adamc@1061	3191 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	3192 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	3193 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	3194 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	3195 }
adamc@1061	3196
adamc@1061	3197 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1063	3198 return !!isalnum(c);
adamc@1061	3199 }
adamc@1061	3200
adamc@1061	3201 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1063	3202 return !!isalpha(c);
adamc@1061	3203 }
adamc@1061	3204
adamc@1061	3205 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1063	3206 return !!isblank(c);
adamc@1061	3207 }
adamc@1061	3208
adamc@1061	3209 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1063	3210 return !!iscntrl(c);
adamc@1061	3211 }
adamc@1061	3212
adamc@1061	3213 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1063	3214 return !!isdigit(c);
adamc@1061	3215 }
adamc@1061	3216
adamc@1061	3217 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1063	3218 return !!isgraph(c);
adamc@1061	3219 }
adamc@1061	3220
adamc@1061	3221 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1063	3222 return !!islower(c);
adamc@1061	3223 }
adamc@1061	3224
adamc@1061	3225 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1063	3226 return !!isprint(c);
adamc@1061	3227 }
adamc@1061	3228
adamc@1061	3229 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1063	3230 return !!ispunct(c);
adamc@1061	3231 }
adamc@1061	3232
adamc@1061	3233 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1063	3234 return !!isspace(c);
adamc@1061	3235 }
adamc@1063	3236
adamc@1061	3237 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1063	3238 return !!isupper(c);
adamc@1061	3239 }
adamc@1061	3240
adamc@1061	3241 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1063	3242 return !!isxdigit(c);
adamc@1061	3243 }
adamc@1061	3244
adamc@1061	3245 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1061	3246 return tolower(c);
adamc@1061	3247 }
adamc@1061	3248
adamc@1061	3249 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1061	3250 return toupper(c);
adamc@1061	3251 }
adamc@1066	3252
adamc@1066	3253 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	3254 return ctx->current_url;
adamc@1066	3255 }
adamc@1066	3256
adamc@1066	3257 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	3258 ctx->current_url = s;
adamc@1066	3259 }

Mercurial > urweb

annotate src/c/urweb.c @ 1072:9001966ae1c8