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

annotate src/c/urweb.c @ 1065:217eb87dde31

Basis.url and redirects

author	Adam Chlipala <adamc@hcoop.net>
date	Thu, 10 Dec 2009 13:32:09 -0500
parents	e3f6620afd51
children	740b85ef4352

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

Mercurial > urweb

annotate src/c/urweb.c @ 1065:217eb87dde31