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

annotate src/c/urweb.c @ 1149:15767031950c

AC_USE_SYSTEM_EXTENSIONS replaces the need for hacky #defines at starts of C files

author	Adam Chlipala <adamc@hcoop.net>
date	Sat, 06 Feb 2010 13:46:17 -0500
parents	92f37d58828b
children	151837581b5e

rev	line source
adamc@117	1 #include <stdlib.h>
adamc@102	2 #include <stdio.h>
adamc@117	3 #include <string.h>
adamc@457	4 #include <strings.h>
adamc@106	5 #include <ctype.h>
adamc@167	6 #include <setjmp.h>
adamc@167	7 #include <stdarg.h>
adamc@682	8 #include <assert.h>
adamc@741	9 #include <ctype.h>
adamc@1114	10 #include <limits.h>
adamc@1113	11 #include <stdint.h>
adamc@1094	12 #include <sys/types.h>
adamc@1094	13 #include <sys/socket.h>
adamc@102	14
adamc@667	15 #include <pthread.h>
adamc@667	16
adamc@102	17 #include "types.h"
adamc@102	18
adamc@311	19 uw_unit uw_unit_v = {};
adamc@102	20
adamc@667	21
adamc@667	22 // Socket extras
adamc@667	23
adamc@863	24 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667	25 while (len > 0) {
adamc@856	26 ssize_t n = send(sock, buf, len, 0);
adamc@856	27
adamc@856	28 if (n < 0)
adamc@856	29 return n;
adamc@856	30
adamc@856	31 buf += n;
adamc@856	32 len -= n;
adamc@856	33 }
adamc@856	34
adamc@856	35 return 0;
adamc@856	36 }
adamc@856	37
adamc@856	38 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856	39 while (len > 0) {
adamc@856	40 ssize_t n = write(fd, buf, len);
adamc@667	41
adamc@667	42 if (n < 0)
adamc@667	43 return n;
adamc@667	44
adamc@667	45 buf += n;
adamc@667	46 len -= n;
adamc@667	47 }
adamc@667	48
adamc@667	49 return 0;
adamc@667	50 }
adamc@667	51
adamc@667	52
adamc@667	53 // Buffers
adamc@667	54
adamc@667	55 typedef struct {
adamc@1113	56 size_t max;
adamc@667	57 char start, front, *back;
adamc@667	58 } buf;
adamc@667	59
adamc@1113	60 static void buf_init(size_t max, buf *b, size_t s) {
adamc@1113	61 b->max = max;
adamc@667	62 b->front = b->start = malloc(s);
adamc@667	63 b->back = b->front + s;
adamc@667	64 }
adamc@667	65
adamc@667	66 static void buf_free(buf *b) {
adamc@667	67 free(b->start);
adamc@667	68 }
adamc@667	69
adamc@667	70 static void buf_reset(buf *b) {
adamc@667	71 b->front = b->start;
adamc@667	72 }
adamc@667	73
adamc@1113	74 static int buf_check(buf *b, size_t extra) {
adamc@667	75 if (b->back - b->front < extra) {
adamc@667	76 size_t desired = b->front - b->start + extra, next;
adamc@667	77 char *new_heap;
adamc@667	78
adamc@667	79 next = b->back - b->start;
adamc@667	80 if (next == 0)
adamc@667	81 next = 1;
adamc@667	82 for (; next < desired; next *= 2);
adamc@667	83
adamc@1134	84 if (next > b->max) {
adamc@1113	85 if (desired <= b->max)
adamc@1113	86 next = desired;
adamc@1113	87 else
adamc@1113	88 return 1;
adamc@1134	89 }
adamc@1113	90
adamc@667	91 new_heap = realloc(b->start, next);
adamc@667	92 b->front = new_heap + (b->front - b->start);
adamc@667	93 b->back = new_heap + next;
adamc@667	94 b->start = new_heap;
adamc@667	95 }
adamc@1113	96
adamc@1113	97 return 0;
adamc@1113	98 }
adamc@1113	99
adamc@1113	100 __attribute__((noreturn)) void uw_error(uw_context, failure_kind, const char *, ...);
adamc@1113	101
adamc@1113	102 static void ctx_buf_check(uw_context ctx, const char kind, buf b, size_t extra) {
adamc@1113	103 if (buf_check(b, extra))
adamc@1113	104 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@667	105 }
adamc@667	106
adamc@667	107 static size_t buf_used(buf *b) {
adamc@667	108 return b->front - b->start;
adamc@667	109 }
adamc@667	110
adamc@667	111 static size_t buf_avail(buf *b) {
adamc@667	112 return b->back - b->start;
adamc@667	113 }
adamc@667	114
adamc@1113	115 static int buf_append(buf b, const char s, size_t len) {
adamc@1113	116 if (buf_check(b, len+1))
adamc@1113	117 return 1;
adamc@1113	118
adamc@1113	119 memcpy(b->front, s, len);
adamc@1113	120 b->front += len;
adamc@1113	121 *b->front = 0;
adamc@1113	122
adamc@1113	123 return 0;
adamc@1113	124 }
adamc@1113	125
adamc@1113	126 static void ctx_buf_append(uw_context ctx, const char kind, buf b, const char *s, size_t len) {
adamc@1113	127 ctx_buf_check(ctx, kind, b, len+1);
adamc@1113	128
adamc@668	129 memcpy(b->front, s, len);
adamc@668	130 b->front += len;
adamc@672	131 *b->front = 0;
adamc@668	132 }
adamc@667	133
adamc@668	134
adamc@672	135 // Persistent state types
adamc@667	136
adamc@667	137 typedef enum { UNUSED, USED } usage;
adamc@667	138
adamc@667	139 typedef struct client {
adamc@682	140 unsigned id;
adamc@667	141 usage mode;
adamc@682	142 int pass;
adamc@682	143 struct client *next;
adamc@689	144 pthread_mutex_t lock, pull_lock;
adamc@682	145 buf msgs;
adamc@682	146 int sock;
adamc@863	147 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	148 int (*close)(int fd);
adamc@682	149 time_t last_contact;
adamc@682	150 unsigned n_channels;
adamc@685	151 unsigned refcount;
adamc@1121	152 void *data;
adamc@667	153 } client;
adamc@667	154
adamc@672	155
adamc@672	156 // Persistent client state
adamc@672	157
adamc@682	158 static client *clients, clients_free, *clients_used;
adamc@682	159 static unsigned n_clients;
adamc@667	160
adamc@667	161 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@667	162
adamc@1113	163 size_t uw_messages_max = SIZE_MAX;
adamc@1113	164 size_t uw_clients_max = SIZE_MAX;
adamc@1113	165
adamc@1121	166 void *uw_init_client_data();
adamc@1121	167 void uw_free_client_data(void *);
adamc@1121	168 void uw_copy_client_data(void dst, void src);
adamc@1121	169
adamc@682	170 static client *new_client() {
adamc@667	171 client *c;
adamc@667	172
adamc@667	173 pthread_mutex_lock(&clients_mutex);
adamc@667	174
adamc@667	175 if (clients_free) {
adamc@667	176 c = clients_free;
adamc@682	177 clients_free = clients_free->next;
adamc@667	178 }
adamc@1113	179 else if (n_clients >= uw_clients_max)
adamc@1113	180 return NULL;
adamc@667	181 else {
adamc@667	182 ++n_clients;
adamc@667	183 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	184 c = malloc(sizeof(client));
adamc@667	185 c->id = n_clients-1;
adamc@682	186 pthread_mutex_init(&c->lock, NULL);
adamc@689	187 pthread_mutex_init(&c->pull_lock, NULL);
adamc@1113	188 buf_init(uw_messages_max, &c->msgs, 0);
adamc@667	189 clients[n_clients-1] = c;
adamc@667	190 }
adamc@667	191
adamc@682	192 pthread_mutex_lock(&c->lock);
adamc@667	193 c->mode = USED;
adamc@682	194 c->pass = rand();
adamc@682	195 c->sock = -1;
adamc@682	196 c->last_contact = time(NULL);
adamc@682	197 buf_reset(&c->msgs);
adamc@682	198 c->n_channels = 0;
adamc@685	199 c->refcount = 0;
adamc@1121	200 c->data = uw_init_client_data();
adamc@682	201 pthread_mutex_unlock(&c->lock);
adamc@682	202
adamc@682	203 c->next = clients_used;
adamc@682	204 clients_used = c;
adamc@667	205
adamc@667	206 pthread_mutex_unlock(&clients_mutex);
adamc@667	207
adamc@667	208 return c;
adamc@667	209 }
adamc@667	210
adamc@685	211 static void use_client(client *c) {
adamc@685	212 pthread_mutex_lock(&c->lock);
adamc@685	213 ++c->refcount;
adamc@685	214 pthread_mutex_unlock(&c->lock);
adamc@689	215 pthread_mutex_lock(&c->pull_lock);
adamc@685	216 }
adamc@685	217
adamc@685	218 static void release_client(client *c) {
adamc@689	219 pthread_mutex_unlock(&c->pull_lock);
adamc@685	220 pthread_mutex_lock(&c->lock);
adamc@685	221 --c->refcount;
adamc@685	222 pthread_mutex_unlock(&c->lock);
adamc@689	223
adamc@685	224 }
adamc@685	225
adamc@856	226 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adamc@667	227
adamc@682	228 static client *find_client(unsigned id) {
adamc@667	229 client *c;
adamc@667	230
adamc@667	231 pthread_mutex_lock(&clients_mutex);
adamc@667	232
adamc@667	233 if (id >= n_clients) {
adamc@667	234 pthread_mutex_unlock(&clients_mutex);
adamc@668	235 return NULL;
adamc@667	236 }
adamc@667	237
adamc@667	238 c = clients[id];
adamc@667	239
adamc@668	240 pthread_mutex_unlock(&clients_mutex);
adamc@668	241 return c;
adamc@668	242 }
adamc@668	243
adamc@856	244 static char *on_success = "HTTP/1.1 200 OK\r\n";
adamc@1065	245 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	246
adamc@856	247 void uw_set_on_success(char *s) {
adamc@856	248 on_success = s;
adamc@856	249 }
adamc@856	250
adamc@863	251 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	252 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	253 int (*close)(int fd),
adamc@864	254 void *logger_data, uw_logger log_error) {
adamc@682	255 client *c = find_client(id);
adamc@668	256
adamc@668	257 if (c == NULL) {
adamc@667	258 close(sock);
adamc@864	259 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	260 return;
adamc@667	261 }
adamc@667	262
adamc@682	263 pthread_mutex_lock(&c->lock);
adamc@671	264
adamc@682	265 if (c->mode != USED) {
adamc@682	266 pthread_mutex_unlock(&c->lock);
adamc@667	267 close(sock);
adamc@864	268 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	269 return;
adamc@667	270 }
adamc@667	271
adamc@682	272 if (pass != c->pass) {
adamc@682	273 pthread_mutex_unlock(&c->lock);
adamc@682	274 close(sock);
adamc@864	275 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	276 return;
adamc@667	277 }
adamc@667	278
adamc@682	279 if (c->sock != -1) {
adamc@863	280 c->close(c->sock);
adamc@682	281 c->sock = -1;
adamc@682	282 }
adamc@667	283
adamc@682	284 c->last_contact = time(NULL);
adamc@682	285
adamc@682	286 if (buf_used(&c->msgs) > 0) {
adamc@863	287 send(sock, on_success, strlen(on_success));
adamc@863	288 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863	289 send(sock, c->msgs.start, buf_used(&c->msgs));
adamc@682	290 buf_reset(&c->msgs);
adamc@667	291 close(sock);
adamc@667	292 }
adamc@863	293 else {
adamc@682	294 c->sock = sock;
adamc@863	295 c->send = send;
adamc@863	296 c->close = close;
adamc@863	297 }
adamc@667	298
adamc@682	299 pthread_mutex_unlock(&c->lock);
adamc@667	300 }
adamc@667	301
adamc@682	302 static void free_client(client *c) {
adamc@682	303 c->mode = UNUSED;
adamc@682	304 c->pass = -1;
adamc@667	305
adamc@682	306 c->next = clients_free;
adamc@682	307 clients_free = c;
adamc@667	308 }
adamc@667	309
adamc@682	310 static uw_Basis_channel new_channel(client *c) {
adamc@682	311 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	312 return ch;
adamc@668	313 }
adamc@668	314
adamc@685	315 static void client_send(client c, buf msg) {
adamc@685	316 pthread_mutex_lock(&c->lock);
adamc@671	317
adamc@682	318 if (c->sock != -1) {
adamc@863	319 c->send(c->sock, on_success, strlen(on_success));
adamc@863	320 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863	321 c->send(c->sock, msg->start, buf_used(msg));
adamc@863	322 c->close(c->sock);
adamc@682	323 c->sock = -1;
adamc@1113	324 } else if (buf_append(&c->msgs, msg->start, buf_used(msg)))
adamc@1113	325 fprintf(stderr, "Client message buffer size exceeded");
adamc@671	326
adamc@685	327 pthread_mutex_unlock(&c->lock);
adamc@668	328 }
adamc@668	329
adamc@668	330
adamc@668	331 // Global entry points
adamc@668	332
adamc@1104	333 extern void uw_init_crypto();
adamc@1104	334
adamc@668	335 void uw_global_init() {
adamc@668	336 srand(time(NULL) ^ getpid());
adamc@668	337
adamc@668	338 clients = malloc(0);
adamc@1104	339
adamc@1104	340 uw_init_crypto();
adamc@1094	341 }
adamc@1094	342
adamc@1094	343 void uw_app_init(uw_app *app) {
adamc@1094	344 app->client_init();
adamc@668	345 }
adamc@668	346
adamc@1114	347 int uw_time = 0;
adamc@1114	348
adamc@668	349
adamc@667	350 // Single-request state
adamc@667	351
adamc@167	352 #define ERROR_BUF_LEN 1024
adamc@167	353
adamc@323	354 typedef struct regions {
adamc@323	355 struct regions *next;
adamc@323	356 } regions;
adamc@323	357
adamc@425	358 typedef struct {
adamc@425	359 void (func)(void);
adamc@425	360 void *arg;
adamc@425	361 } cleanup;
adamc@425	362
adamc@671	363 typedef struct {
adamc@682	364 unsigned client;
adamc@671	365 buf msgs;
adamc@682	366 } delta;
adamc@671	367
adamc@737	368 typedef enum {
adamc@759	369 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	370 } input_kind;
adamc@737	371
adamc@756	372 typedef struct input {
adamc@737	373 input_kind kind;
adamc@737	374 union {
adamc@737	375 char *normal;
adamc@739	376 uw_Basis_file file;
adamc@756	377 struct {
adamc@759	378 struct input fields, parent;
adamc@756	379 } subform;
adamc@759	380 struct {
adamc@759	381 struct input entries, parent;
adamc@759	382 } subforms;
adamc@759	383 struct {
adamc@759	384 struct input fields, next, *parent;
adamc@759	385 } entry;
adamc@737	386 } data;
adamc@737	387 } input;
adamc@737	388
adamc@771	389 typedef struct {
adamc@771	390 void *data;
adamc@771	391 uw_callback commit, rollback, free;
adamc@771	392 } transactional;
adamc@771	393
adamc@1061	394 typedef struct {
adamc@1061	395 char *name;
adamc@1061	396 void *data;
adamc@1061	397 void (free)(void);
adamc@1061	398 } global;
adamc@1061	399
adamc@311	400 struct uw_context {
adamc@1094	401 uw_app *app;
adamc@1094	402
adamc@854	403 char (get_header)(void , const char );
adamc@854	404 void *get_header_data;
adamc@457	405
adamc@666	406 buf outHeaders, page, heap, script;
adamc@1065	407 int returning_indirectly;
adamc@759	408 input inputs, subinputs, *cur_container;
adamc@1094	409 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	410
adamc@565	411 int source_count;
adamc@562	412
adamc@272	413 void *db;
adamc@272	414
adamc@167	415 jmp_buf jmp_buf;
adamc@167	416
adamc@323	417 regions *regions;
adamc@323	418
adamc@425	419 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	420
adamc@1094	421 const char *script_header;
adamc@643	422
adamc@736	423 int needs_push, needs_sig;
adamc@693	424
adamc@682	425 size_t n_deltas, used_deltas;
adamc@682	426 delta *deltas;
adamc@671	427
adamc@682	428 client *client;
adamc@682	429
adamc@771	430 transactional *transactionals;
adamc@771	431 size_t n_transactionals, used_transactionals;
adamc@771	432
adamc@1061	433 global *globals;
adamc@1061	434 size_t n_globals;
adamc@1061	435
adamc@1066	436 char *current_url;
adamc@1066	437
adamc@1114	438 int deadline;
adamc@1114	439
adamc@1121	440 void *client_data;
adamc@1121	441
adamc@167	442 char error_message[ERROR_BUF_LEN];
adamc@117	443 };
adamc@117	444
adamc@1113	445 size_t uw_headers_max = SIZE_MAX;
adamc@1113	446 size_t uw_page_max = SIZE_MAX;
adamc@1113	447 size_t uw_heap_max = SIZE_MAX;
adamc@1113	448 size_t uw_script_max = SIZE_MAX;
adamc@1113	449
adamc@687	450 uw_context uw_init() {
adamc@311	451 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	452
adamc@1094	453 ctx->app = NULL;
adamc@1094	454
adamc@854	455 ctx->get_header = NULL;
adamc@854	456 ctx->get_header_data = NULL;
adamc@457	457
adamc@1113	458 buf_init(uw_headers_max, &ctx->outHeaders, 0);
adamc@1113	459 buf_init(uw_page_max, &ctx->page, 0);
adamc@1065	460 ctx->returning_indirectly = 0;
adamc@1113	461 buf_init(uw_heap_max, &ctx->heap, 0);
adamc@1113	462 buf_init(uw_script_max, &ctx->script, 1);
adamc@667	463 ctx->script.start[0] = 0;
adamc@136	464
adamc@1094	465 ctx->inputs = malloc(0);
adamc@759	466 ctx->cur_container = NULL;
adamc@756	467 ctx->subinputs = malloc(0);
adamc@1094	468 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	469
adamc@272	470 ctx->db = NULL;
adamc@272	471
adamc@323	472 ctx->regions = NULL;
adamc@323	473
adamc@425	474 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	475
adamc@643	476 ctx->script_header = "";
adamc@693	477 ctx->needs_push = 0;
adamc@736	478 ctx->needs_sig = 0;
adamc@1104	479
adamc@565	480 ctx->source_count = 0;
adamc@562	481
adamc@682	482 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	483 ctx->deltas = malloc(0);
adamc@671	484
adamc@700	485 ctx->client = NULL;
adamc@700	486
adamc@700	487 ctx->error_message[0] = 0;
adamc@700	488
adamc@771	489 ctx->transactionals = malloc(0);
adamc@771	490 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	491
adamc@1061	492 ctx->globals = malloc(0);
adamc@1061	493 ctx->n_globals = 0;
adamc@1061	494
adamc@1066	495 ctx->current_url = "";
adamc@1066	496
adamc@1114	497 ctx->deadline = INT_MAX;
adamc@1114	498
adamc@1121	499 ctx->client_data = uw_init_client_data();
adamc@1121	500
adamc@117	501 return ctx;
adamc@106	502 }
adamc@106	503
adamc@1113	504 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	505
adamc@1121	506 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	507 return ctx->app;
adamc@1121	508 }
adamc@1121	509
adamc@1113	510 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	511 ctx->app = app;
adamc@1094	512
adamc@1105	513 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	514 if (app->inputs_len > uw_inputs_max)
adamc@1113	515 return 1;
adamc@1113	516
adamc@1094	517 ctx->sz_inputs = app->inputs_len;
adamc@1094	518 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	519 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	520 }
adamc@1134	521
adamc@1134	522 return 0;
adamc@1094	523 }
adamc@1094	524
adamc@1121	525 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	526 uw_copy_client_data(ctx->client_data, data);
adamc@1121	527 }
adamc@1121	528
adamc@311	529 void uw_set_db(uw_context ctx, void *db) {
adamc@272	530 ctx->db = db;
adamc@272	531 }
adamc@272	532
adamc@311	533 void *uw_get_db(uw_context ctx) {
adamc@272	534 return ctx->db;
adamc@272	535 }
adamc@272	536
adamc@311	537 void uw_free(uw_context ctx) {
adamc@671	538 size_t i;
adamc@671	539
adamc@666	540 buf_free(&ctx->outHeaders);
adamc@666	541 buf_free(&ctx->script);
adamc@666	542 buf_free(&ctx->page);
adamc@666	543 buf_free(&ctx->heap);
adamc@144	544 free(ctx->inputs);
adamc@756	545 free(ctx->subinputs);
adamc@425	546 free(ctx->cleanup);
adamc@771	547 free(ctx->transactionals);
adamc@1121	548 uw_free_client_data(ctx->client_data);
adamc@671	549
adamc@682	550 for (i = 0; i < ctx->n_deltas; ++i)
adamc@671	551 buf_free(&ctx->deltas[i].msgs);
adamc@671	552
adamc@1061	553 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	554 if (ctx->globals[i].free)
adamc@1089	555 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	556
adamc@136	557 free(ctx);
adamc@136	558 }
adamc@136	559
adamc@562	560 void uw_reset_keep_error_message(uw_context ctx) {
adamc@666	561 buf_reset(&ctx->outHeaders);
adamc@666	562 buf_reset(&ctx->script);
adamc@667	563 ctx->script.start[0] = 0;
adamc@666	564 buf_reset(&ctx->page);
adamc@1065	565 ctx->returning_indirectly = 0;
adamc@666	566 buf_reset(&ctx->heap);
adamc@323	567 ctx->regions = NULL;
adamc@425	568 ctx->cleanup_front = ctx->cleanup;
adamc@565	569 ctx->source_count = 0;
adamc@682	570 ctx->used_deltas = 0;
adamc@682	571 ctx->client = NULL;
adamc@759	572 ctx->cur_container = NULL;
adamc@771	573 ctx->used_transactionals = 0;
adamc@1117	574 ctx->script_header = "";
adamc@167	575 }
adamc@167	576
adamc@562	577 void uw_reset_keep_request(uw_context ctx) {
adamc@562	578 uw_reset_keep_error_message(ctx);
adamc@562	579 ctx->error_message[0] = 0;
adamc@167	580 }
adamc@167	581
adamc@311	582 void uw_reset(uw_context ctx) {
adamc@311	583 uw_reset_keep_request(ctx);
adamc@1105	584 if (ctx->app)
adamc@1105	585 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	586 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adamc@756	587 ctx->used_subinputs = 0;
adamc@144	588 }
adamc@144	589
adamc@311	590 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	591 int r = setjmp(ctx->jmp_buf);
adamc@272	592
adamc@1105	593 if (r == 0 && ctx->app)
adamc@1094	594 ctx->app->db_init(ctx);
adamc@272	595
adamc@272	596 return r;
adamc@272	597 }
adamc@272	598
adamc@1118	599 void uw_close(uw_context ctx) {
adamc@1118	600 ctx->app->db_close(ctx);
adamc@1118	601 }
adamc@1118	602
adamc@854	603 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	604 ctx->get_header = get_header;
adamc@854	605 ctx->get_header_data = get_header_data;
adamc@742	606 }
adamc@742	607
adamc@801	608 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	609 va_list ap;
adamc@801	610 va_start(ap, fmt);
adamc@801	611
adamc@801	612 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	613 }
adamc@801	614
adamc@1131	615 int uw_has_error(uw_context ctx) {
adamc@1131	616 return ctx->error_message[0] != 0;
adamc@1131	617 }
adamc@1131	618
adamc@311	619 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	620 cleanup *cl;
adamc@425	621
adamc@167	622 va_list ap;
adamc@167	623 va_start(ap, fmt);
adamc@167	624
adamc@167	625 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	626
adamc@425	627 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	628 cl->func(cl->arg);
adamc@425	629
adamc@425	630 ctx->cleanup_front = ctx->cleanup;
adamc@425	631
adamc@190	632 longjmp(ctx->jmp_buf, fk);
adamc@167	633 }
adamc@167	634
adamc@1113	635 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	636
adamc@425	637 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	638 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	639 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	640 if (len == 0)
adamc@425	641 newLen = 1;
adamc@425	642 else
adamc@428	643 newLen = len * 2;
adamc@1113	644
adamc@1134	645 if (newLen > uw_cleanup_max) {
adamc@1113	646 if (len+1 <= uw_cleanup_max)
adamc@1113	647 newLen = uw_cleanup_max;
adamc@1113	648 else
adamc@1113	649 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	650 }
adamc@1113	651
adamc@470	652 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	653 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	654 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	655 }
adamc@425	656
adamc@425	657 ctx->cleanup_front->func = func;
adamc@425	658 ctx->cleanup_front->arg = arg;
adamc@425	659 ++ctx->cleanup_front;
adamc@425	660 }
adamc@425	661
adamc@682	662 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adamc@854	663 return ctx->get_header(ctx->get_header_data, h);
adamc@682	664 }
adamc@682	665
adamc@682	666 void uw_login(uw_context ctx) {
adamc@693	667 if (ctx->needs_push) {
adamc@682	668 char id_s, pass_s;
adamc@682	669
adamc@682	670 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682	671 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682	672 unsigned id = atoi(id_s);
adamc@682	673 int pass = atoi(pass_s);
adamc@682	674 client *c = find_client(id);
adamc@682	675
adamc@682	676 if (c == NULL)
adamc@682	677 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", id_s, pass_s);
adamc@682	678 else {
adamc@685	679 use_client(c);
adamc@682	680 ctx->client = c;
adamc@682	681
adamc@682	682 if (c->mode != USED)
adamc@682	683 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682	684 if (c->pass != pass)
adamc@682	685 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682	686 }
adamc@682	687 } else {
adamc@682	688 client *c = new_client();
adamc@1113	689
adamc@1113	690 if (c == NULL)
adamc@1113	691 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adamc@1113	692
adamc@685	693 use_client(c);
adamc@1121	694 uw_copy_client_data(c->data, ctx->client_data);
adamc@682	695 ctx->client = c;
adamc@864	696 }
adamc@682	697 }
adamc@682	698 }
adamc@682	699
adamc@671	700 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	701 int r = setjmp(ctx->jmp_buf);
adamc@671	702
adamc@671	703 if (r == 0) {
adamc@1094	704 if (ctx->app->db_begin(ctx))
adamc@671	705 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adamc@682	706
adamc@1094	707 ctx->app->handle(ctx, path);
adamc@671	708 }
adamc@671	709
adamc@671	710 return r;
adamc@671	711 }
adamc@671	712
adamc@772	713 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	714 if (ctx->client == NULL)
adamc@682	715 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	716
adamc@682	717 return ctx->client->id;
adamc@682	718 }
adamc@682	719
adamc@425	720 void uw_pop_cleanup(uw_context ctx) {
adamc@425	721 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	722 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	723
adamc@425	724 --ctx->cleanup_front;
adamc@425	725 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	726 }
adamc@425	727
adamc@311	728 char *uw_error_message(uw_context ctx) {
adamc@167	729 return ctx->error_message;
adamc@167	730 }
adamc@167	731
adamc@1115	732 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	733 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	734 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	735 }
adamc@1115	736
adamc@759	737 static input *INP(uw_context ctx) {
adamc@759	738 if (ctx->cur_container == NULL)
adamc@759	739 return ctx->inputs;
adamc@759	740 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	741 return ctx->cur_container->data.subform.fields;
adamc@759	742 else if (ctx->cur_container->kind == ENTRY)
adamc@759	743 return ctx->cur_container->data.entry.fields;
adamc@759	744 else
adamc@760	745 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	746 }
adamc@759	747
adamc@760	748 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	749 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	750 *ptr += new_start - old_start;
adamc@760	751 }
adamc@760	752
adamc@760	753 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	754 switch (x->kind) {
adamc@759	755 case SUBFORM:
adamc@760	756 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	757 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	758 break;
adamc@759	759 case SUBFORMS:
adamc@760	760 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	761 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	762 break;
adamc@759	763 case ENTRY:
adamc@760	764 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	765 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	766 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	767 break;
adamc@1134	768 default:
adamc@1134	769 break;
adamc@759	770 }
adamc@759	771 }
adamc@759	772
adamc@1113	773 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	774
adamc@759	775 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	776 size_t i;
adamc@759	777 input *r;
adamc@759	778
adamc@759	779 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	780 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	781 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	782
adamc@759	783 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	784
adamc@760	785 if (ctx->subinputs != new_subinputs) {
adamc@760	786 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	787 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	788 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	789 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	790
adamc@760	791 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	792
adamc@760	793 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	794 ctx->subinputs = new_subinputs;
adamc@760	795 }
adamc@759	796 }
adamc@759	797
adamc@759	798 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	799
adamc@759	800 for (i = 0; i < len; ++i)
adamc@759	801 ctx->subinputs[ctx->used_subinputs++].kind = UNUSED;
adamc@759	802
adamc@759	803 return r;
adamc@759	804 }
adamc@756	805
adamc@801	806 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	807 //printf("Input name %s\n", name);
adamc@1038	808
adamc@756	809 if (!strcasecmp(name, ".b")) {
adamc@1094	810 int n = ctx->app->input_num(value);
adamc@756	811 input *inps;
adamc@756	812
adamc@801	813 if (n < 0) {
adamc@801	814 uw_set_error(ctx, "Bad subform name %s", value);
adamc@801	815 return -1;
adamc@801	816 }
adamc@801	817
adamc@1094	818 if (n >= ctx->app->inputs_len) {
adamc@801	819 uw_set_error(ctx, "For subform name %s, index %d is out of range", value, n);
adamc@801	820 return -1;
adamc@801	821 }
adamc@756	822
adamc@1094	823 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	824
adamc@759	825 INP(ctx)[n].kind = SUBFORM;
adamc@759	826 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	827 INP(ctx)[n].data.subform.fields = inps;
adamc@759	828 ctx->cur_container = &INP(ctx)[n];
adamc@756	829 } else if (!strcasecmp(name, ".e")) {
adamc@756	830 input *tmp;
adamc@756	831
adamc@801	832 if (ctx->cur_container == NULL) {
adamc@801	833 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	834 return -1;
adamc@801	835 }
adamc@756	836
adamc@759	837 tmp = ctx->cur_container;
adamc@759	838 switch (tmp->kind) {
adamc@759	839 case SUBFORM:
adamc@759	840 ctx->cur_container = tmp->data.subform.parent;
adamc@759	841 tmp->data.subform.parent = NULL;
adamc@759	842 break;
adamc@759	843 case SUBFORMS:
adamc@759	844 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	845 tmp->data.subforms.parent = NULL;
adamc@759	846 break;
adamc@759	847 case ENTRY:
adamc@759	848 ctx->cur_container = tmp->data.entry.parent;
adamc@759	849 break;
adamc@759	850 default:
adamc@801	851 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	852 return -1;
adamc@759	853 }
adamc@759	854 } else if (!strcasecmp(name, ".s")) {
adamc@1094	855 int n = ctx->app->input_num(value);
adamc@759	856
adamc@801	857 if (n < 0) {
adamc@801	858 uw_set_error(ctx, "Bad subforms name %s", value);
adamc@801	859 return -1;
adamc@801	860 }
adamc@801	861
adamc@1094	862 if (n >= ctx->app->inputs_len) {
adamc@801	863 uw_set_error(ctx, "For subforms name %s, index %d is out of range", value, n);
adamc@801	864 return -1;
adamc@801	865 }
adamc@759	866
adamc@759	867 INP(ctx)[n].kind = SUBFORMS;
adamc@759	868 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	869 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	870 ctx->cur_container = &INP(ctx)[n];
adamc@759	871 } else if (!strcasecmp(name, ".i")) {
adamc@759	872 input *inps;
adamc@759	873
adamc@801	874 if (!ctx->cur_container) {
adamc@801	875 uw_set_error(ctx, "New entry without container");
adamc@801	876 return -1;
adamc@801	877 }
adamc@801	878
adamc@801	879 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	880 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	881 return -1;
adamc@801	882 }
adamc@759	883
adamc@1094	884 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	885
adamc@759	886 inps->kind = ENTRY;
adamc@759	887 inps->data.entry.parent = ctx->cur_container;
adamc@759	888 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	889 ctx->cur_container->data.subforms.entries = inps;
adamc@759	890
adamc@759	891 inps->data.entry.fields = inps+1;
adamc@759	892 ctx->cur_container = inps;
adamc@756	893 } else {
adamc@1094	894 int n = ctx->app->input_num(name);
adamc@756	895
adamc@801	896 if (n < 0) {
adamc@1038	897 if (!strcmp(name, "null"))
adamc@1038	898 return 0;
adamc@801	899 uw_set_error(ctx, "Bad input name %s", name);
adamc@801	900 return -1;
adamc@801	901 }
adamc@801	902
adamc@1094	903 if (n >= ctx->app->inputs_len) {
adamc@801	904 uw_set_error(ctx, "For input name %s, index %d is out of range", name, n);
adamc@801	905 return -1;
adamc@801	906 }
adamc@756	907
adamc@756	908 INP(ctx)[n].kind = NORMAL;
adamc@756	909 INP(ctx)[n].data.normal = value;
adamc@756	910 }
adamc@801	911
adamc@801	912 return 0;
adamc@144	913 }
adamc@144	914
adamc@311	915 char *uw_get_input(uw_context ctx, int n) {
adamc@169	916 if (n < 0)
adamc@311	917 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	918 if (n >= ctx->app->inputs_len)
adamc@311	919 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	920
adamc@756	921 switch (INP(ctx)[n].kind) {
adamc@737	922 case UNSET:
adamc@737	923 return NULL;
adamc@739	924 case FIL:
adamc@739	925 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	926 case SUBFORM:
adamc@756	927 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	928 case SUBFORMS:
adamc@759	929 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	930 case ENTRY:
adamc@759	931 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	932 case NORMAL:
adamc@756	933 return INP(ctx)[n].data.normal;
adamc@737	934 default:
adamc@737	935 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	936 }
adamc@138	937 }
adamc@138	938
adamc@311	939 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	940 if (n < 0)
adamc@311	941 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	942 if (n >= ctx->app->inputs_len)
adamc@311	943 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	944
adamc@756	945 switch (INP(ctx)[n].kind) {
adamc@737	946 case UNSET:
adamc@737	947 return "";
adamc@739	948 case FIL:
adamc@739	949 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	950 case SUBFORM:
adamc@756	951 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	952 case SUBFORMS:
adamc@759	953 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	954 case ENTRY:
adamc@759	955 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	956 case NORMAL:
adamc@756	957 return INP(ctx)[n].data.normal;
adamc@737	958 default:
adamc@737	959 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	960 }
adamc@737	961 }
adamc@737	962
adamc@801	963 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	964 int n = ctx->app->input_num(name);
adamc@737	965
adamc@801	966 if (n < 0) {
adamc@801	967 uw_set_error(ctx, "Bad file input name %s", name);
adamc@801	968 return -1;
adamc@801	969 }
adamc@801	970
adamc@1094	971 if (n >= ctx->app->inputs_len) {
adamc@801	972 uw_set_error(ctx, "For file input name %s, index %d is out of range", name, n);
adamc@801	973 return -1;
adamc@801	974 }
adamc@737	975
adamc@739	976 ctx->inputs[n].kind = FIL;
adamc@739	977 ctx->inputs[n].data.file = f;
adamc@801	978
adamc@801	979 return 0;
adamc@737	980 }
adamc@737	981
adamc@739	982 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	983
adamc@739	984 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	985 if (n < 0)
adamc@737	986 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	987 if (n >= ctx->app->inputs_len)
adamc@737	988 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	989
adamc@756	990 switch (INP(ctx)[n].kind) {
adamc@737	991 case UNSET:
adamc@737	992 {
adamc@739	993 char *data = uw_malloc(ctx, 0);
adamc@740	994 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	995 return f;
adamc@737	996 }
adamc@739	997 case FIL:
adamc@756	998 return INP(ctx)[n].data.file;
adamc@737	999 case NORMAL:
adamc@737	1000 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1001 case SUBFORM:
adamc@756	1002 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1003 case SUBFORMS:
adamc@759	1004 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1005 case ENTRY:
adamc@759	1006 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1007 default:
adamc@737	1008 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1009 }
adamc@190	1010 }
adamc@190	1011
adamc@756	1012 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1013 if (n < 0)
adamc@756	1014 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1015 if (n >= ctx->app->inputs_len)
adamc@756	1016 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1017
adamc@756	1018 switch (INP(ctx)[n].kind) {
adamc@756	1019 case UNSET:
adamc@756	1020 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1021 case FIL:
adamc@756	1022 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1023 case NORMAL:
adamc@756	1024 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1025 case SUBFORMS:
adamc@759	1026 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1027 case ENTRY:
adamc@759	1028 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1029 case SUBFORM:
adamc@759	1030 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1031 ctx->cur_container = &INP(ctx)[n];
adamc@756	1032 return;
adamc@756	1033 default:
adamc@756	1034 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1035 }
adamc@756	1036 }
adamc@756	1037
adamc@756	1038 void uw_leave_subform(uw_context ctx) {
adamc@756	1039 input *tmp;
adamc@756	1040
adamc@759	1041 if (ctx->cur_container == NULL)
adamc@756	1042 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1043
adamc@759	1044 tmp = ctx->cur_container;
adamc@759	1045 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1046 tmp->data.subform.parent = NULL;
adamc@759	1047 }
adamc@759	1048
adamc@759	1049 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1050 input *inps;
adamc@759	1051
adamc@759	1052 if (n < 0)
adamc@759	1053 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1054 if (n >= ctx->app->inputs_len)
adamc@759	1055 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1056
adamc@759	1057 switch (INP(ctx)[n].kind) {
adamc@759	1058 case UNSET:
adamc@759	1059 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1060 case FIL:
adamc@759	1061 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1062 case NORMAL:
adamc@759	1063 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1064 case SUBFORM:
adamc@759	1065 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1066 case ENTRY:
adamc@759	1067 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1068 case SUBFORMS:
adamc@759	1069 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1070 if (inps) {
adamc@759	1071 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1072 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1073 return 1;
adamc@759	1074 } else
adamc@759	1075 return 0;
adamc@759	1076 default:
adamc@759	1077 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1078 }
adamc@759	1079 }
adamc@759	1080
adamc@759	1081 int uw_next_entry(uw_context ctx) {
adamc@759	1082 if (ctx->cur_container == NULL)
adamc@759	1083 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1084
adamc@759	1085 switch (ctx->cur_container->kind) {
adamc@759	1086 case UNSET:
adamc@759	1087 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1088 case FIL:
adamc@759	1089 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1090 case NORMAL:
adamc@759	1091 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1092 case SUBFORM:
adamc@759	1093 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1094 case SUBFORMS:
adamc@759	1095 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1096 case ENTRY:
adamc@759	1097 if (ctx->cur_container->data.entry.next) {
adamc@759	1098 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1099 return 1;
adamc@759	1100 } else {
adamc@759	1101 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1102 return 0;
adamc@759	1103 }
adamc@759	1104 default:
adamc@759	1105 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1106 }
adamc@756	1107 }
adamc@756	1108
adamc@643	1109 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1110 ctx->script_header = s;
adamc@643	1111 }
adamc@643	1112
adamc@1094	1113 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1114 return ctx->app->url_prefix;
adamc@667	1115 }
adamc@667	1116
adamc@693	1117 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1118 ctx->needs_push = n;
adamc@693	1119 }
adamc@693	1120
adamc@736	1121 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1122 ctx->needs_sig = n;
adamc@736	1123 }
adamc@736	1124
adamc@667	1125
adamc@1113	1126 static void buf_check_ctx(uw_context ctx, const char kind, buf b, size_t extra, const char *desc) {
adamc@666	1127 if (b->back - b->front < extra) {
adamc@666	1128 size_t desired = b->front - b->start + extra, next;
adamc@136	1129 char *new_heap;
adamc@136	1130
adamc@666	1131 next = b->back - b->start;
adamc@317	1132 if (next == 0)
adamc@317	1133 next = 1;
adamc@317	1134 for (; next < desired; next *= 2);
adamc@136	1135
adamc@1134	1136 if (next > b->max) {
adamc@1113	1137 if (desired <= b->max)
adamc@1113	1138 next = desired;
adamc@1113	1139 else
adamc@1113	1140 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1141 }
adamc@1113	1142
adamc@666	1143 new_heap = realloc(b->start, next);
adamc@666	1144 b->front = new_heap + (b->front - b->start);
adamc@666	1145 b->back = new_heap + next;
adamc@136	1146
adamc@667	1147 if (new_heap != b->start) {
adamc@666	1148 b->start = new_heap;
adamc@666	1149 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously", desc);
adamc@136	1150 }
adamc@136	1151
adamc@666	1152 b->start = new_heap;
adamc@136	1153 }
adamc@136	1154 }
adamc@136	1155
adamc@832	1156 void uw_check_heap(uw_context ctx, size_t extra) {
adamc@1113	1157 buf_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1158 }
adamc@666	1159
adamc@832	1160 char *uw_heap_front(uw_context ctx) {
adamc@832	1161 return ctx->heap.front;
adamc@832	1162 }
adamc@832	1163
adamc@832	1164 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1165 ctx->heap.front = fr;
adamc@832	1166 }
adamc@832	1167
adamc@311	1168 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136	1169 void *result;
adamc@136	1170
adamc@311	1171 uw_check_heap(ctx, len);
adamc@136	1172
adamc@666	1173 result = ctx->heap.front;
adamc@666	1174 ctx->heap.front += len;
adamc@136	1175 return result;
adamc@117	1176 }
adamc@117	1177
adamc@323	1178 void uw_begin_region(uw_context ctx) {
adamc@666	1179 regions r = (regions ) ctx->heap.front;
adamc@323	1180
adamc@323	1181 uw_check_heap(ctx, sizeof(regions));
adamc@323	1182
adamc@666	1183 ctx->heap.front += sizeof(regions);
adamc@323	1184
adamc@323	1185 r->next = ctx->regions;
adamc@323	1186 ctx->regions = r;
adamc@323	1187 }
adamc@323	1188
adamc@323	1189 void uw_end_region(uw_context ctx) {
adamc@323	1190 regions *r = ctx->regions;
adamc@323	1191
adamc@323	1192 if (r == NULL)
adamc@323	1193 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1194
adamc@666	1195 ctx->heap.front = (char *) r;
adamc@323	1196 ctx->regions = r->next;
adamc@323	1197 }
adamc@323	1198
adamc@324	1199 void uw_memstats(uw_context ctx) {
adamc@1134	1200 printf("Headers: %lu/%lu\n", (unsigned long)buf_used(&ctx->outHeaders), (unsigned long)buf_avail(&ctx->outHeaders));
adamc@1134	1201 printf("Script: %lu/%lu\n", (unsigned long)buf_used(&ctx->script), (unsigned long)buf_avail(&ctx->script));
adamc@1134	1202 printf("Page: %lu/%lu\n", (unsigned long)buf_used(&ctx->page), (unsigned long)buf_avail(&ctx->page));
adamc@1134	1203 printf("Heap: %lu/%lu\n", (unsigned long)buf_used(&ctx->heap), (unsigned long)buf_avail(&ctx->heap));
adamc@324	1204 }
adamc@324	1205
adamc@311	1206 int uw_send(uw_context ctx, int sock) {
adamc@666	1207 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462	1208
adamc@462	1209 if (n < 0)
adamc@462	1210 return n;
adamc@462	1211
adamc@462	1212 n = uw_really_send(sock, "\r\n", 2);
adamc@462	1213
adamc@462	1214 if (n < 0)
adamc@462	1215 return n;
adamc@462	1216
adamc@666	1217 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462	1218 }
adamc@462	1219
adamc@856	1220 int uw_print(uw_context ctx, int fd) {
adamc@856	1221 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1222
adamc@856	1223 if (n < 0)
adamc@856	1224 return n;
adamc@856	1225
adamc@856	1226 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1227
adamc@856	1228 if (n < 0)
adamc@856	1229 return n;
adamc@856	1230
adamc@856	1231 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1232 }
adamc@856	1233
adamc@860	1234 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1235 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1236
adamc@860	1237 if (n < 0)
adamc@860	1238 return n;
adamc@860	1239
adamc@860	1240 n = output(data, "\r\n", 2);
adamc@860	1241
adamc@860	1242 if (n < 0)
adamc@860	1243 return n;
adamc@860	1244
adamc@860	1245 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1246 }
adamc@860	1247
adamc@462	1248 static void uw_check_headers(uw_context ctx, size_t extra) {
adamc@1113	1249 ctx_buf_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1250 }
adamc@462	1251
adamc@462	1252 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1253 int len = strlen(s);
adamc@462	1254
adamc@462	1255 uw_check_headers(ctx, len + 1);
adamc@666	1256 strcpy(ctx->outHeaders.front, s);
adamc@666	1257 ctx->outHeaders.front += len;
adamc@562	1258 }
adamc@562	1259
adamc@1110	1260 void uw_clear_headers(uw_context ctx) {
adamc@1110	1261 buf_reset(&ctx->outHeaders);
adamc@1110	1262 }
adamc@1110	1263
adamc@562	1264 static void uw_check_script(uw_context ctx, size_t extra) {
adamc@1113	1265 ctx_buf_check(ctx, "script", &ctx->script, extra);
adamc@562	1266 }
adamc@562	1267
adamc@562	1268 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1269 int len = strlen(s);
adamc@562	1270
adamc@562	1271 uw_check_script(ctx, len + 1);
adamc@666	1272 strcpy(ctx->script.front, s);
adamc@666	1273 ctx->script.front += len;
adamc@562	1274 }
adamc@562	1275
adamc@645	1276 const char *uw_Basis_get_script(uw_context ctx, uw_unit u) {
adamc@916	1277 return "<sc>";
adamc@565	1278 }
adamc@565	1279
adamc@695	1280 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1281 if (s[0] == 0)
adamc@695	1282 return "";
adamc@695	1283 else {
adamc@695	1284 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1285 sprintf(r, " onload='%s'", s);
adamc@695	1286 return r;
adamc@695	1287 }
adamc@695	1288 }
adamc@695	1289
adamc@1042	1290 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1291 if (ctx->script_header[0] == 0)
adamc@1042	1292 return "";
adamc@1042	1293 else {
adamc@1042	1294 char *r = uw_malloc(ctx, 22 + strlen(s));
adamc@1042	1295 sprintf(r, " onunload='unload();%s'", s);
adamc@1042	1296 return r;
adamc@1042	1297 }
adamc@1042	1298 }
adamc@1042	1299
adamc@694	1300 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1301 if (ctx->client == NULL) {
adamc@736	1302 if (ctx->needs_sig) {
adamc@1094	1303 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1304 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1305 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1306 return r;
adamc@736	1307 }
adamc@736	1308 else
adamc@736	1309 return "";
adamc@736	1310 } else {
adamc@1094	1311 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1312 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1313 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adamc@736	1314 sprintf(r, "client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adamc@682	1315 ctx->client->id,
adamc@682	1316 ctx->client->pass,
adamc@1094	1317 ctx->app->url_prefix,
adamc@1094	1318 ctx->app->timeout,
adamc@736	1319 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1320 sig,
adamc@736	1321 ctx->needs_sig ? "\";" : "");
adamc@679	1322 return r;
adamc@668	1323 }
adamc@667	1324 }
adamc@667	1325
adamc@574	1326 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1327 char r, s2;
adamc@574	1328
adamc@574	1329 uw_check_heap(ctx, strlen(s) * 4 + 2);
adamc@574	1330
adamc@666	1331 r = s2 = ctx->heap.front;
adamc@574	1332 *s2++ = '"';
adamc@574	1333
adamc@574	1334 for (; *s; s++) {
adamc@574	1335 char c = *s;
adamc@574	1336
adamc@574	1337 switch (c) {
adamc@574	1338 case '"':
adamc@574	1339 strcpy(s2, "\\\"");
adamc@574	1340 s2 += 2;
adamc@574	1341 break;
adamc@1027	1342 case '\'':
adamc@1027	1343 strcpy(s2, "\\047");
adamc@1027	1344 s2 += 4;
adamc@1027	1345 break;
adamc@574	1346 case '\\':
adamc@574	1347 strcpy(s2, "\\\\");
adamc@574	1348 s2 += 2;
adamc@574	1349 break;
adamc@574	1350 default:
adamc@1147	1351 if (isprint((int)c))
adamc@574	1352 *s2++ = c;
adamc@574	1353 else {
adamc@574	1354 sprintf(s2, "\\%3o", c);
adamc@574	1355 s2 += 4;
adamc@574	1356 }
adamc@574	1357 }
adamc@574	1358 }
adamc@574	1359
adamc@574	1360 strcpy(s2, "\"");
adamc@910	1361 ctx->heap.front = s2 + 2;
adamc@574	1362 return r;
adamc@574	1363 }
adamc@574	1364
adamc@1025	1365 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1025	1366 char r, s2;
adamc@1025	1367
adamc@1025	1368 uw_check_heap(ctx, 6);
adamc@1025	1369
adamc@1025	1370 r = s2 = ctx->heap.front;
adamc@1025	1371 *s2++ = '"';
adamc@1025	1372
adamc@1025	1373 switch (c) {
adamc@1025	1374 case '"':
adamc@1025	1375 strcpy(s2, "\\\"");
adamc@1025	1376 s2 += 2;
adamc@1025	1377 break;
adamc@1027	1378 case '\'':
adamc@1027	1379 strcpy(s2, "\\047");
adamc@1027	1380 s2 += 4;
adamc@1027	1381 break;
adamc@1025	1382 case '\\':
adamc@1025	1383 strcpy(s2, "\\\\");
adamc@1025	1384 s2 += 2;
adamc@1025	1385 break;
adamc@1025	1386 default:
adamc@1147	1387 if (isprint((int)c))
adamc@1025	1388 *s2++ = c;
adamc@1025	1389 else {
adamc@1025	1390 sprintf(s2, "\\%3o", c);
adamc@1025	1391 s2 += 4;
adamc@1025	1392 }
adamc@1025	1393 }
adamc@1025	1394
adamc@1025	1395 strcpy(s2, "\"");
adamc@1025	1396 ctx->heap.front = s2 + 2;
adamc@1025	1397 return r;
adamc@1025	1398 }
adamc@1025	1399
adamc@574	1400 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1401 char r, s2;
adamc@574	1402
adamc@574	1403 uw_check_script(ctx, strlen(s) * 4 + 2);
adamc@574	1404
adamc@666	1405 r = s2 = ctx->script.front;
adamc@574	1406 *s2++ = '"';
adamc@574	1407
adamc@574	1408 for (; *s; s++) {
adamc@574	1409 char c = *s;
adamc@574	1410
adamc@574	1411 switch (c) {
adamc@577	1412 case '\'':
adamc@1027	1413 strcpy(s2, "\\");
adamc@574	1414 s2 += 2;
adamc@574	1415 break;
adamc@574	1416 case '\\':
adamc@574	1417 strcpy(s2, "\\\\");
adamc@574	1418 s2 += 2;
adamc@574	1419 break;
adamc@574	1420 default:
adamc@1147	1421 if (isprint((int)c))
adamc@574	1422 *s2++ = c;
adamc@574	1423 else {
adamc@574	1424 sprintf(s2, "\\%3o", c);
adamc@574	1425 s2 += 4;
adamc@574	1426 }
adamc@574	1427 }
adamc@574	1428 }
adamc@574	1429
adamc@574	1430 strcpy(s2, "\"");
adamc@666	1431 ctx->script.front = s2 + 1;
adamc@574	1432 return r;
adamc@574	1433 }
adamc@574	1434
adamc@682	1435 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1436 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1437 return "null";
adamc@682	1438 else {
adamc@682	1439 int len;
adamc@682	1440 char *r;
adamc@682	1441
adamc@682	1442 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1443 r = ctx->heap.front;
adamc@682	1444 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1445 ctx->heap.front += len+1;
adamc@682	1446 return r;
adamc@682	1447 }
adamc@682	1448 }
adamc@682	1449
adamc@577	1450 uw_Basis_int uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1451 int len;
adamc@577	1452 size_t s_len = strlen(s);
adamc@562	1453
adamc@970	1454 uw_check_script(ctx, 18 + INTS_MAX + s_len);
adamc@970	1455 sprintf(ctx->script.front, "var s%d=sc(exec(%n", ctx->source_count, &len);
adamc@666	1456 ctx->script.front += len;
adamc@666	1457 strcpy(ctx->script.front, s);
adamc@666	1458 ctx->script.front += s_len;
adamc@970	1459 strcpy(ctx->script.front, "));");
adamc@972	1460 ctx->script.front += 3;
adamc@562	1461
adamc@565	1462 return ctx->source_count++;
adamc@117	1463 }
adamc@117	1464
adamc@577	1465 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_int n, uw_Basis_string s) {
adamc@577	1466 int len;
adamc@577	1467 size_t s_len = strlen(s);
adamc@577	1468
adamc@970	1469 uw_check_script(ctx, 12 + INTS_MAX + s_len);
adamc@970	1470 sprintf(ctx->script.front, "sv(s%d,exec(%n", (int)n, &len);
adamc@666	1471 ctx->script.front += len;
adamc@666	1472 strcpy(ctx->script.front, s);
adamc@666	1473 ctx->script.front += s_len;
adamc@970	1474 strcpy(ctx->script.front, "));");
adamc@972	1475 ctx->script.front += 3;
adamc@577	1476
adamc@577	1477 return uw_unit_v;
adamc@577	1478 }
adamc@577	1479
adamc@311	1480 static void uw_check(uw_context ctx, size_t extra) {
adamc@1113	1481 ctx_buf_check(ctx, "page", &ctx->page, extra);
adamc@117	1482 }
adamc@117	1483
adamc@311	1484 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1485 *(ctx->page.front)++ = c;
adamc@117	1486 }
adamc@117	1487
adamc@311	1488 void uw_writec(uw_context ctx, char c) {
adamc@311	1489 uw_check(ctx, 1);
adamc@311	1490 uw_writec_unsafe(ctx, c);
adamc@117	1491 }
adamc@117	1492
adamc@311	1493 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1494 int len = strlen(s);
adamc@666	1495 memcpy(ctx->page.front, s, len);
adamc@666	1496 ctx->page.front += len;
adamc@117	1497 }
adamc@117	1498
adamc@311	1499 void uw_write(uw_context ctx, const char* s) {
adamc@311	1500 uw_check(ctx, strlen(s) + 1);
adamc@311	1501 uw_write_unsafe(ctx, s);
adamc@666	1502 *ctx->page.front = 0;
adamc@102	1503 }
adamc@106	1504
adamc@311	1505 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1506 char *result;
adamc@136	1507 int len;
adamc@311	1508 uw_check_heap(ctx, INTS_MAX);
adamc@666	1509 result = ctx->heap.front;
adamc@276	1510 sprintf(result, "%lld%n", n, &len);
adamc@666	1511 ctx->heap.front += len+1;
adamc@136	1512 return result;
adamc@106	1513 }
adamc@106	1514
adamc@311	1515 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1516 char *result;
adamc@136	1517 int len;
adamc@311	1518 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1519 result = ctx->heap.front;
adamc@136	1520 sprintf(result, "%g%n", n, &len);
adamc@666	1521 ctx->heap.front += len+1;
adamc@136	1522 return result;
adamc@106	1523 }
adamc@106	1524
adamc@311	1525 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1526 int len = strlen(s);
adamc@136	1527 char result, p;
adamc@311	1528 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1529
adamc@666	1530 result = p = ctx->heap.front;
adamc@136	1531
adamc@136	1532 for (; *s; s++) {
adamc@1054	1533 unsigned char c = *s;
adamc@136	1534
adamc@136	1535 if (c == '"') {
adamc@136	1536 strcpy(p, """);
adamc@136	1537 p += 6;
adamc@136	1538 } else if (c == '&') {
adamc@136	1539 strcpy(p, "&");
adamc@136	1540 p += 5;
adamc@136	1541 }
adamc@1059	1542 else
adamc@136	1543 *p++ = c;
adamc@136	1544 }
adamc@136	1545
adamc@137	1546 *p++ = 0;
adamc@666	1547 ctx->heap.front = p;
adamc@136	1548 return result;
adamc@106	1549 }
adamc@106	1550
adamc@1011	1551 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1552 char result, p;
adamc@1011	1553 uw_check_heap(ctx, 7);
adamc@1011	1554
adamc@1011	1555 result = p = ctx->heap.front;
adamc@1011	1556
adamc@1011	1557 if (c == '"') {
adamc@1011	1558 strcpy(p, """);
adamc@1011	1559 p += 6;
adamc@1011	1560 } else if (c == '&') {
adamc@1011	1561 strcpy(p, "&");
adamc@1011	1562 p += 5;
adamc@1011	1563 }
adamc@1059	1564 else
adamc@1011	1565 *p++ = c;
adamc@1011	1566
adamc@1011	1567 *p++ = 0;
adamc@1011	1568 ctx->heap.front = p;
adamc@1011	1569 return result;
adamc@1011	1570 }
adamc@1011	1571
adamc@721	1572 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1573 return s;
adamc@721	1574 }
adamc@721	1575
adamc@311	1576 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1577 int len;
adamc@117	1578
adamc@666	1579 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1580 ctx->page.front += len;
adamc@106	1581 }
adamc@106	1582
adamc@428	1583 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1584 uw_check(ctx, INTS_MAX);
adamc@311	1585 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1586
adamc@428	1587 return uw_unit_v;
adamc@106	1588 }
adamc@106	1589
adamc@428	1590 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1591 int len;
adamc@117	1592
adamc@311	1593 uw_check(ctx, FLOATS_MAX);
adamc@666	1594 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1595 ctx->page.front += len;
adamc@428	1596
adamc@428	1597 return uw_unit_v;
adamc@117	1598 }
adamc@117	1599
adamc@428	1600 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1601 uw_check(ctx, strlen(s) * 6);
adamc@117	1602
adamc@106	1603 for (; *s; s++) {
adamc@1054	1604 unsigned char c = *s;
adamc@106	1605
adamc@106	1606 if (c == '"')
adamc@311	1607 uw_write_unsafe(ctx, """);
adamc@136	1608 else if (c == '&')
adamc@311	1609 uw_write_unsafe(ctx, "&");
adamc@1059	1610 else
adamc@311	1611 uw_writec_unsafe(ctx, c);
adamc@106	1612 }
adamc@428	1613
adamc@428	1614 return uw_unit_v;
adamc@106	1615 }
adamc@120	1616
adamc@1011	1617 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1618 uw_check(ctx, 6);
adamc@1011	1619
adamc@1011	1620 if (c == '"')
adamc@1011	1621 uw_write_unsafe(ctx, """);
adamc@1011	1622 else if (c == '&')
adamc@1011	1623 uw_write_unsafe(ctx, "&");
adamc@1059	1624 else
adamc@1011	1625 uw_writec_unsafe(ctx, c);
adamc@1011	1626
adamc@1011	1627 return uw_unit_v;
adamc@1011	1628 }
adamc@1011	1629
adamc@120	1630
adamc@311	1631 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1632 int len;
adamc@137	1633 char *r;
adamc@137	1634
adamc@311	1635 uw_check_heap(ctx, INTS_MAX);
adamc@666	1636 r = ctx->heap.front;
adamc@276	1637 sprintf(r, "%lld%n", n, &len);
adamc@666	1638 ctx->heap.front += len+1;
adamc@137	1639 return r;
adamc@120	1640 }
adamc@120	1641
adamc@682	1642 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1643 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1644 return "";
adamc@682	1645 else {
adamc@682	1646 int len;
adamc@682	1647 char *r;
adamc@679	1648
adamc@682	1649 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1650 r = ctx->heap.front;
adamc@682	1651 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1652 ctx->heap.front += len+1;
adamc@682	1653 return r;
adamc@682	1654 }
adamc@679	1655 }
adamc@679	1656
adamc@311	1657 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1658 int len;
adamc@137	1659 char *r;
adamc@137	1660
adamc@311	1661 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1662 r = ctx->heap.front;
adamc@137	1663 sprintf(r, "%g%n", n, &len);
adamc@666	1664 ctx->heap.front += len+1;
adamc@137	1665 return r;
adamc@120	1666 }
adamc@120	1667
adamc@311	1668 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1669 char r, p;
adamc@137	1670
adamc@925	1671 if (s[0] == '\0')
adamc@925	1672 return "_";
adamc@925	1673
adamc@925	1674 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1675
adamc@925	1676 r = p = ctx->heap.front;
adamc@925	1677 if (s[0] == '_')
adamc@925	1678 *p++ = '_';
adamc@925	1679
adamc@925	1680 for (; *s; s++) {
adamc@1087	1681 unsigned char c = *s;
adamc@137	1682
adamc@137	1683 if (c == ' ')
adamc@137	1684 *p++ = '+';
adamc@137	1685 else if (isalnum(c))
adamc@137	1686 *p++ = c;
adamc@137	1687 else {
adamc@137	1688 sprintf(p, "%%%02X", c);
adamc@137	1689 p += 3;
adamc@137	1690 }
adamc@137	1691 }
adamc@137	1692
adamc@137	1693 *p++ = 0;
adamc@666	1694 ctx->heap.front = p;
adamc@137	1695 return r;
adamc@120	1696 }
adamc@120	1697
adamc@311	1698 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1699 if (b == uw_Basis_False)
adamc@186	1700 return "0";
adamc@186	1701 else
adamc@186	1702 return "1";
adamc@186	1703 }
adamc@186	1704
adamc@311	1705 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1706 int len;
adamc@120	1707
adamc@666	1708 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1709 ctx->page.front += len;
adamc@120	1710 }
adamc@120	1711
adamc@428	1712 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1713 uw_check(ctx, INTS_MAX);
adamc@311	1714 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1715
adamc@428	1716 return uw_unit_v;
adamc@120	1717 }
adamc@120	1718
adamc@682	1719 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1720 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1721 int len;
adamc@682	1722
adamc@682	1723 uw_check(ctx, INTS_MAX + 1);
adamc@682	1724 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1725 ctx->page.front += len;
adamc@682	1726 }
adamc@682	1727
adamc@679	1728 return uw_unit_v;
adamc@679	1729 }
adamc@679	1730
adamc@428	1731 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1732 int len;
adamc@120	1733
adamc@311	1734 uw_check(ctx, FLOATS_MAX);
adamc@666	1735 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1736 ctx->page.front += len;
adamc@428	1737
adamc@428	1738 return uw_unit_v;
adamc@120	1739 }
adamc@120	1740
adamc@488	1741 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@488	1742 return uw_Basis_urlifyInt(ctx, t);
adamc@488	1743 }
adamc@488	1744
adamc@428	1745 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1746 if (s[0] == '\0') {
adamc@925	1747 uw_check(ctx, 1);
adamc@925	1748 uw_writec_unsafe(ctx, '_');
adamc@925	1749 return uw_unit_v;
adamc@925	1750 }
adamc@925	1751
adamc@925	1752 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1753
adamc@925	1754 if (s[0] == '_')
adamc@925	1755 uw_writec_unsafe(ctx, '_');
adamc@120	1756
adamc@120	1757 for (; *s; s++) {
adamc@1087	1758 unsigned char c = *s;
adamc@120	1759
adamc@120	1760 if (c == ' ')
adamc@311	1761 uw_writec_unsafe(ctx, '+');
adamc@120	1762 else if (isalnum(c))
adamc@311	1763 uw_writec_unsafe(ctx, c);
adamc@120	1764 else {
adamc@666	1765 sprintf(ctx->page.front, "%%%02X", c);
adamc@666	1766 ctx->page.front += 3;
adamc@120	1767 }
adamc@120	1768 }
adamc@428	1769
adamc@428	1770 return uw_unit_v;
adamc@120	1771 }
adamc@120	1772
adamc@428	1773 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1774 if (b == uw_Basis_False)
adamc@311	1775 uw_writec(ctx, '0');
adamc@186	1776 else
adamc@311	1777 uw_writec(ctx, '1');
adamc@428	1778
adamc@428	1779 return uw_unit_v;
adamc@186	1780 }
adamc@186	1781
adamc@120	1782
adamc@311	1783 static char uw_unurlify_advance(char s) {
adamc@144	1784 char *new_s = strchr(s, '/');
adamc@120	1785
adamc@120	1786 if (new_s)
adamc@120	1787 *new_s++ = 0;
adamc@120	1788 else
adamc@144	1789 new_s = strchr(s, 0);
adamc@144	1790
adamc@144	1791 return new_s;
adamc@144	1792 }
adamc@144	1793
adamc@311	1794 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1795 char new_s = uw_unurlify_advance(s);
adamc@311	1796 uw_Basis_int r;
adamc@120	1797
adamc@276	1798 r = atoll(*s);
adamc@120	1799 *s = new_s;
adamc@120	1800 return r;
adamc@120	1801 }
adamc@120	1802
adamc@311	1803 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1804 char new_s = uw_unurlify_advance(s);
adamc@311	1805 uw_Basis_float r;
adamc@120	1806
adamc@120	1807 r = atof(*s);
adamc@120	1808 *s = new_s;
adamc@120	1809 return r;
adamc@120	1810 }
adamc@120	1811
adamc@488	1812 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adamc@488	1813 return uw_Basis_unurlifyInt(ctx, s);
adamc@488	1814 }
adamc@488	1815
adamc@1023	1816 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1817 char s1, s2 = s;
adamc@144	1818 int n;
adamc@136	1819
adamc@1023	1820 if (!fromClient) {
adamc@1023	1821 if (*s2 == '_')
adamc@1023	1822 ++s2;
adamc@1023	1823 else if (s2[0] == '%' && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1824 s2 += 3;
adamc@1023	1825 }
adamc@925	1826
adamc@927	1827 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	1828 unsigned char c = *s2;
adamc@136	1829
adamc@136	1830 switch (c) {
adamc@136	1831 case '+':
adamc@136	1832 *s1 = ' ';
adamc@136	1833 break;
adamc@136	1834 case '%':
adamc@169	1835 if (s2[1] == 0)
adamc@311	1836 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1837 if (s2[2] == 0)
adamc@311	1838 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1839 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@311	1840 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@136	1841 *s1 = n;
adamc@136	1842 s2 += 2;
adamc@136	1843 break;
adamc@136	1844 default:
adamc@136	1845 *s1 = c;
adamc@136	1846 }
adamc@136	1847 }
adamc@136	1848 *s1++ = 0;
adamc@144	1849 return s1;
adamc@144	1850 }
adamc@144	1851
adamc@311	1852 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	1853 char new_s = uw_unurlify_advance(s);
adamc@311	1854 uw_Basis_bool r;
adamc@186	1855
adamc@186	1856 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	1857 r = uw_Basis_False;
adamc@186	1858 else
adamc@311	1859 r = uw_Basis_True;
adamc@186	1860
adamc@186	1861 *s = new_s;
adamc@186	1862 return r;
adamc@186	1863 }
adamc@186	1864
adamc@311	1865 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	1866 char new_s = uw_unurlify_advance(s);
adamc@1134	1867 char *r;
adamc@1134	1868 int len;
adamc@144	1869
adamc@200	1870 len = strlen(*s);
adamc@311	1871 uw_check_heap(ctx, len + 1);
adamc@144	1872
adamc@666	1873 r = ctx->heap.front;
adamc@1023	1874 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	1875 *s = new_s;
adamc@1023	1876 return r;
adamc@1023	1877 }
adamc@1023	1878
adamc@1109	1879 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	1880 s = uw_unurlify_advance(s);
adamc@1109	1881 return uw_unit_v;
adamc@1109	1882 }
adamc@1109	1883
adamc@1023	1884 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	1885 char new_s = uw_unurlify_advance(s);
adamc@1134	1886 char *r;
adamc@1134	1887 int len;
adamc@1023	1888
adamc@1023	1889 len = strlen(*s);
adamc@1023	1890 uw_check_heap(ctx, len + 1);
adamc@1023	1891
adamc@1023	1892 r = ctx->heap.front;
adamc@1023	1893 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	1894 *s = new_s;
adamc@136	1895 return r;
adamc@120	1896 }
adamc@135	1897
adamc@135	1898
adamc@311	1899 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	1900 int len;
adamc@286	1901 char *r;
adamc@286	1902
adamc@311	1903 uw_check_heap(ctx, INTS_MAX);
adamc@666	1904 r = ctx->heap.front;
adamc@286	1905 sprintf(r, "%lld%n", n, &len);
adamc@666	1906 ctx->heap.front += len+1;
adamc@286	1907 return r;
adamc@286	1908 }
adamc@286	1909
adamc@428	1910 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	1911 int len;
adamc@286	1912
adamc@311	1913 uw_check(ctx, INTS_MAX);
adamc@666	1914 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1915 ctx->page.front += len;
adamc@428	1916
adamc@428	1917 return uw_unit_v;
adamc@286	1918 }
adamc@286	1919
adamc@311	1920 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	1921 int len;
adamc@286	1922 char *r;
adamc@286	1923
adamc@311	1924 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1925 r = ctx->heap.front;
adamc@286	1926 sprintf(r, "%g%n", n, &len);
adamc@666	1927 ctx->heap.front += len+1;
adamc@286	1928 return r;
adamc@286	1929 }
adamc@286	1930
adamc@428	1931 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	1932 int len;
adamc@286	1933
adamc@311	1934 uw_check(ctx, FLOATS_MAX);
adamc@666	1935 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1936 ctx->page.front += len;
adamc@428	1937
adamc@428	1938 return uw_unit_v;
adamc@286	1939 }
adamc@286	1940
adamc@311	1941 char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1942 char r, s2;
adamc@137	1943
adamc@311	1944 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	1945
adamc@666	1946 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	1947 unsigned char c = *s;
adamc@137	1948
adamc@137	1949 switch (c) {
adamc@137	1950 case '<':
adamc@137	1951 strcpy(s2, "<");
adamc@137	1952 s2 += 4;
adamc@137	1953 break;
adamc@137	1954 case '&':
adamc@137	1955 strcpy(s2, "&");
adamc@137	1956 s2 += 5;
adamc@137	1957 break;
adamc@137	1958 default:
adamc@1059	1959 *s2++ = c;
adamc@137	1960 }
adamc@137	1961 }
adamc@137	1962
adamc@137	1963 *s2++ = 0;
adamc@666	1964 ctx->heap.front = s2;
adamc@137	1965 return r;
adamc@135	1966 }
adamc@135	1967
adamc@428	1968 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	1969 uw_check(ctx, strlen(s) * 6);
adamc@135	1970
adamc@135	1971 for (; *s; s++) {
adamc@1054	1972 unsigned char c = *s;
adamc@135	1973
adamc@135	1974 switch (c) {
adamc@135	1975 case '<':
adamc@311	1976 uw_write_unsafe(ctx, "<");
adamc@135	1977 break;
adamc@135	1978 case '&':
adamc@311	1979 uw_write_unsafe(ctx, "&");
adamc@135	1980 break;
adamc@135	1981 default:
adamc@1059	1982 uw_writec_unsafe(ctx, c);
adamc@135	1983 }
adamc@135	1984 }
adamc@428	1985
adamc@428	1986 return uw_unit_v;
adamc@135	1987 }
adamc@180	1988
adamc@311	1989 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1990 if (b == uw_Basis_False)
adamc@286	1991 return "False";
adamc@286	1992 else
adamc@286	1993 return "True";
adamc@286	1994 }
adamc@286	1995
adamc@428	1996 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1997 if (b == uw_Basis_False) {
adamc@311	1998 uw_check(ctx, 6);
adamc@666	1999 strcpy(ctx->page.front, "False");
adamc@666	2000 ctx->page.front += 5;
adamc@286	2001 } else {
adamc@311	2002 uw_check(ctx, 5);
adamc@666	2003 strcpy(ctx->page.front, "True");
adamc@666	2004 ctx->page.front += 4;
adamc@286	2005 }
adamc@428	2006
adamc@428	2007 return uw_unit_v;
adamc@286	2008 }
adamc@286	2009
adamc@436	2010 #define TIME_FMT "%x %X"
adamc@438	2011 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436	2012
adamc@436	2013 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436	2014 size_t len;
adamc@436	2015 char *r;
adamc@436	2016 struct tm stm;
adamc@436	2017
adamc@436	2018 if (localtime_r(&t, &stm)) {
adamc@436	2019 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2020 r = ctx->heap.front;
adamc@436	2021 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2022 ctx->heap.front += len+1;
adamc@436	2023 return r;
adamc@436	2024 } else
adamc@436	2025 return "<i>Invalid time</i>";
adamc@436	2026 }
adamc@436	2027
adamc@436	2028 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436	2029 size_t len;
adamc@436	2030 char *r;
adamc@436	2031 struct tm stm;
adamc@436	2032
adamc@436	2033 if (localtime_r(&t, &stm)) {
adamc@436	2034 uw_check(ctx, TIMES_MAX);
adamc@666	2035 r = ctx->page.front;
adamc@436	2036 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2037 ctx->page.front += len;
adamc@436	2038 } else {
adamc@436	2039 uw_check(ctx, 20);
adamc@666	2040 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666	2041 ctx->page.front += 19;
adamc@436	2042 }
adamc@436	2043
adamc@436	2044 return uw_unit_v;
adamc@436	2045 }
adamc@436	2046
adamc@821	2047 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	2048 if (n >= 0 && n < strlen(s))
adamc@821	2049 return s[n];
adamc@821	2050 else
adamc@821	2051 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adamc@821	2052 }
adamc@821	2053
adamc@821	2054 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	2055 if (n >= 0 && n < strlen(s))
adamc@821	2056 return &s[n];
adamc@821	2057 else
adamc@821	2058 uw_error(ctx, FATAL, "Out-of-bounds strsuffix");
adamc@821	2059 }
adamc@821	2060
adamc@828	2061 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2062 return strlen(s);
adamc@828	2063 }
adamc@828	2064
adamc@829	2065 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2066 return strchr(s, ch);
adamc@829	2067 }
adamc@829	2068
adamc@831	2069 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2070 return strcspn(s, chs);
adamc@831	2071 }
adamc@831	2072
adamc@829	2073 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2074 uw_Basis_string r = strchr(s, ch);
adamc@829	2075 if (r == NULL)
adamc@829	2076 return NULL;
adamc@829	2077 else {
adamc@829	2078 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2079 *nr = r - s;
adamc@829	2080 return nr;
adamc@829	2081 }
adamc@829	2082 }
adamc@829	2083
adamc@311	2084 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2085 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2086 char *s;
adamc@180	2087
adamc@311	2088 uw_check_heap(ctx, len);
adamc@180	2089
adamc@666	2090 s = ctx->heap.front;
adamc@180	2091
adamc@180	2092 strcpy(s, s1);
adamc@180	2093 strcat(s, s2);
adamc@666	2094 ctx->heap.front += len;
adamc@180	2095
adamc@180	2096 return s;
adamc@180	2097 }
adamc@278	2098
adamc@829	2099 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2100 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2101
adamc@829	2102 if (start < 0)
adamc@829	2103 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2104 if (len < 0)
adamc@829	2105 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2106 if (start + len > full_len)
adamc@829	2107 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2108
adamc@829	2109 if (start + len == full_len)
adamc@829	2110 return &s[start];
adamc@829	2111 else {
adamc@829	2112 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2113 memcpy(r, s+start, len);
adamc@829	2114 r[len] = 0;
adamc@829	2115 return r;
adamc@829	2116 }
adamc@829	2117
adamc@829	2118 }
adamc@829	2119
adamc@1023	2120 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2121 char *r;
adamc@1023	2122
adamc@1023	2123 uw_check_heap(ctx, 2);
adamc@1023	2124 r = ctx->heap.front;
adamc@1023	2125 r[0] = ch;
adamc@1023	2126 r[1] = 0;
adamc@1023	2127
adamc@1023	2128 ctx->heap.front += 2;
adamc@1023	2129
adamc@1023	2130 return r;
adamc@1023	2131 }
adamc@1023	2132
adamc@737	2133 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2134 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2135 char *s;
adamc@278	2136
adamc@311	2137 uw_check_heap(ctx, len);
adamc@278	2138
adamc@666	2139 s = ctx->heap.front;
adamc@278	2140
adamc@278	2141 strcpy(s, s1);
adamc@666	2142 ctx->heap.front += len;
adamc@278	2143
adamc@278	2144 return s;
adamc@278	2145 }
adamc@280	2146
adamc@737	2147 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2148 if (s1)
adamc@737	2149 return uw_strdup(ctx, s1);
adamc@493	2150 else
adamc@493	2151 return NULL;
adamc@493	2152 }
adamc@493	2153
adamc@742	2154 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2155 char *r = uw_malloc(ctx, len);
adamc@742	2156 memcpy(r, p, len);
adamc@742	2157 return r;
adamc@742	2158 }
adamc@280	2159
adamc@879	2160 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2161
adamc@311	2162 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2163 int len;
adamc@281	2164 char *r;
adamc@281	2165
adamc@311	2166 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2167 r = ctx->heap.front;
adamc@879	2168 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2169 ctx->heap.front += len+1;
adamc@281	2170 return r;
adamc@281	2171 }
adamc@281	2172
adamc@467	2173 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2174 if (n == NULL)
adamc@467	2175 return "NULL";
adamc@467	2176 else
adamc@467	2177 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2178 }
adamc@467	2179
adamc@879	2180 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879	2181
adamc@311	2182 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2183 int len;
adamc@281	2184 char *r;
adamc@281	2185
adamc@311	2186 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2187 r = ctx->heap.front;
adamc@879	2188 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2189 ctx->heap.front += len+1;
adamc@281	2190 return r;
adamc@281	2191 }
adamc@281	2192
adamc@467	2193 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2194 if (n == NULL)
adamc@467	2195 return "NULL";
adamc@467	2196 else
adamc@467	2197 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2198 }
adamc@467	2199
adamc@879	2200 int uw_Estrings = 1;
adamc@879	2201 char *uw_sqlsuffixString = "::text";
adamc@1011	2202 char *uw_sqlsuffixChar = "::char";
adamc@281	2203
adamc@311	2204 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2205 char r, s2;
adamc@280	2206
adamc@879	2207 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2208
adamc@666	2209 r = s2 = ctx->heap.front;
adamc@879	2210 if (uw_Estrings)
adamc@879	2211 *s2++ = 'E';
adamc@280	2212 *s2++ = '\'';
adamc@280	2213
adamc@280	2214 for (; *s; s++) {
adamc@280	2215 char c = *s;
adamc@280	2216
adamc@280	2217 switch (c) {
adamc@280	2218 case '\'':
adamc@885	2219 if (uw_Estrings)
adamc@885	2220 strcpy(s2, "\\'");
adamc@885	2221 else
adamc@885	2222 strcpy(s2, "''");
adamc@280	2223 s2 += 2;
adamc@280	2224 break;
adamc@280	2225 case '\\':
adamc@885	2226 if (uw_Estrings) {
adamc@885	2227 strcpy(s2, "\\\\");
adamc@885	2228 s2 += 2;
adamc@885	2229 } else
adamc@885	2230 *s2++ = '\\';
adamc@280	2231 break;
adamc@280	2232 default:
adamc@280	2233 if (isprint(c))
adamc@280	2234 *s2++ = c;
adamc@879	2235 else if (uw_Estrings) {
adamc@737	2236 sprintf(s2, "\\%03o", c);
adamc@280	2237 s2 += 4;
adamc@280	2238 }
adamc@879	2239 else
adamc@879	2240 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280	2241 }
adamc@280	2242 }
adamc@280	2243
adamc@879	2244 *s2++ = '\'';
adamc@879	2245 strcpy(s2, uw_sqlsuffixString);
adamc@879	2246 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2247 return r;
adamc@280	2248 }
adamc@281	2249
adamc@1011	2250 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2251 char r, s2;
adamc@1011	2252
adamc@1011	2253 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2254
adamc@1011	2255 r = s2 = ctx->heap.front;
adamc@1011	2256 if (uw_Estrings)
adamc@1011	2257 *s2++ = 'E';
adamc@1011	2258 *s2++ = '\'';
adamc@1011	2259
adamc@1011	2260 switch (c) {
adamc@1011	2261 case '\'':
adamc@1011	2262 if (uw_Estrings)
adamc@1011	2263 strcpy(s2, "\\'");
adamc@1011	2264 else
adamc@1011	2265 strcpy(s2, "''");
adamc@1011	2266 s2 += 2;
adamc@1011	2267 break;
adamc@1011	2268 case '\\':
adamc@1011	2269 if (uw_Estrings) {
adamc@1011	2270 strcpy(s2, "\\\\");
adamc@1011	2271 s2 += 2;
adamc@1011	2272 } else
adamc@1011	2273 *s2++ = '\\';
adamc@1011	2274 break;
adamc@1011	2275 default:
adamc@1011	2276 if (isprint(c))
adamc@1011	2277 *s2++ = c;
adamc@1011	2278 else if (uw_Estrings) {
adamc@1011	2279 sprintf(s2, "\\%03o", c);
adamc@1011	2280 s2 += 4;
adamc@1011	2281 }
adamc@1011	2282 else
adamc@1011	2283 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2284 }
adamc@1011	2285
adamc@1011	2286 *s2++ = '\'';
adamc@1011	2287 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2288 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2289 return r;
adamc@1011	2290 }
adamc@1011	2291
adamc@879	2292 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2293
adamc@737	2294 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2295 char r, s2;
adamc@737	2296 size_t i;
adamc@737	2297
adamc@879	2298 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737	2299
adamc@737	2300 r = s2 = ctx->heap.front;
adamc@879	2301 if (uw_Estrings)
adamc@879	2302 *s2++ = 'E';
adamc@737	2303 *s2++ = '\'';
adamc@737	2304
adamc@737	2305 for (i = 0; i < b.size; ++i) {
adamc@737	2306 char c = b.data[i];
adamc@737	2307
adamc@737	2308 switch (c) {
adamc@737	2309 case '\'':
adamc@885	2310 if (uw_Estrings)
adamc@885	2311 strcpy(s2, "\\'");
adamc@885	2312 else
adamc@885	2313 strcpy(s2, "''");
adamc@737	2314 s2 += 2;
adamc@737	2315 break;
adamc@737	2316 case '\\':
adamc@885	2317 if (uw_Estrings) {
adamc@885	2318 strcpy(s2, "\\\\\\\\");
adamc@885	2319 s2 += 4;
adamc@885	2320 } else
adamc@885	2321 *s2++ = '\\';
adamc@737	2322 break;
adamc@737	2323 default:
adamc@737	2324 if (isprint(c))
adamc@737	2325 *s2++ = c;
adamc@879	2326 else if (uw_Estrings) {
adamc@737	2327 sprintf(s2, "\\\\%03o", c);
adamc@737	2328 s2 += 5;
adamc@737	2329 }
adamc@879	2330 else
adamc@879	2331 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737	2332 }
adamc@737	2333 }
adamc@737	2334
adamc@879	2335 *s2++ = '\'';
adamc@879	2336 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2337 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2338 return r;
adamc@737	2339 }
adamc@737	2340
adamc@682	2341 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2342 int len;
adamc@682	2343 char *r;
adamc@682	2344 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2345
adamc@682	2346 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2347 r = ctx->heap.front;
adamc@879	2348 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2349 ctx->heap.front += len+1;
adamc@682	2350 return r;
adamc@682	2351 }
adamc@682	2352
adamc@682	2353 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2354 int len;
adamc@682	2355 char *r;
adamc@682	2356 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2357
adamc@682	2358 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2359 r = ctx->heap.front;
adamc@682	2360 sprintf(r, "%lld%n", combo, &len);
adamc@682	2361 ctx->heap.front += len+1;
adamc@682	2362 return r;
adamc@682	2363 }
adamc@682	2364
adamc@879	2365 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2366
adamc@682	2367 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2368 int len;
adamc@682	2369 char *r;
adamc@682	2370
adamc@682	2371 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2372 r = ctx->heap.front;
adamc@879	2373 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2374 ctx->heap.front += len+1;
adamc@682	2375 return r;
adamc@682	2376 }
adamc@682	2377
adamc@682	2378 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2379 int len;
adamc@682	2380 char *r;
adamc@682	2381
adamc@682	2382 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2383 r = ctx->heap.front;
adamc@682	2384 sprintf(r, "%u%n", cli, &len);
adamc@682	2385 ctx->heap.front += len+1;
adamc@682	2386 return r;
adamc@682	2387 }
adamc@682	2388
adamc@467	2389 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2390 if (s == NULL)
adamc@467	2391 return "NULL";
adamc@467	2392 else
adamc@467	2393 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2394 }
adamc@467	2395
adamc@311	2396 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2397 if (b == uw_Basis_False)
adamc@281	2398 return "FALSE";
adamc@281	2399 else
adamc@281	2400 return "TRUE";
adamc@281	2401 }
adamc@282	2402
adamc@467	2403 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2404 if (b == NULL)
adamc@467	2405 return "NULL";
adamc@467	2406 else
adamc@467	2407 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2408 }
adamc@467	2409
adamc@439	2410 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2411 size_t len;
adamc@682	2412 char r, s;
adamc@682	2413 struct tm stm;
adamc@682	2414
adamc@682	2415 if (localtime_r(&t, &stm)) {
adamc@682	2416 s = uw_malloc(ctx, TIMES_MAX);
adamc@682	2417 len = strftime(s, TIMES_MAX, TIME_FMT, &stm);
adamc@682	2418 r = uw_malloc(ctx, len + 14);
adamc@682	2419 sprintf(r, "'%s'::timestamp", s);
adamc@682	2420 return r;
adamc@682	2421 } else
adamc@682	2422 return "<Invalid time>";
adamc@682	2423 }
adamc@682	2424
adamc@682	2425 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2426 size_t len;
adamc@439	2427 char *r;
adamc@439	2428 struct tm stm;
adamc@439	2429
adamc@439	2430 if (localtime_r(&t, &stm)) {
adamc@439	2431 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2432 r = ctx->heap.front;
adamc@439	2433 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2434 ctx->heap.front += len+1;
adamc@439	2435 return r;
adamc@439	2436 } else
adamc@439	2437 return "<Invalid time>";
adamc@439	2438 }
adamc@439	2439
adamc@467	2440 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2441 if (t == NULL)
adamc@467	2442 return "NULL";
adamc@467	2443 else
adamc@467	2444 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2445 }
adamc@467	2446
adamc@311	2447 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2448 static uw_Basis_int true = 1;
adamc@311	2449 static uw_Basis_int false = 0;
adamc@282	2450
adamc@311	2451 if (b == uw_Basis_False)
adamc@282	2452 return (char *)&false;
adamc@282	2453 else
adamc@282	2454 return (char *)&true;
adamc@282	2455 }
adamc@284	2456
adamc@311	2457 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2458 int len;
adamc@284	2459 char *r;
adamc@284	2460
adamc@311	2461 uw_check_heap(ctx, INTS_MAX);
adamc@666	2462 r = ctx->heap.front;
adamc@284	2463 sprintf(r, "%lld%n", n, &len);
adamc@666	2464 ctx->heap.front += len+1;
adamc@284	2465 return r;
adamc@284	2466 }
adamc@285	2467
adamc@311	2468 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2469 int len;
adamc@285	2470 char *r;
adamc@285	2471
adamc@311	2472 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2473 r = ctx->heap.front;
adamc@285	2474 sprintf(r, "%g%n", n, &len);
adamc@666	2475 ctx->heap.front += len+1;
adamc@285	2476 return r;
adamc@285	2477 }
adamc@285	2478
adamc@821	2479 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2480 char *r = uw_malloc(ctx, 2);
adamc@821	2481 r[0] = ch;
adamc@821	2482 r[1] = 0;
adamc@821	2483 return r;
adamc@821	2484 }
adamc@821	2485
adamc@311	2486 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2487 if (b == uw_Basis_False)
adamc@285	2488 return "False";
adamc@285	2489 else
adamc@285	2490 return "True";
adamc@285	2491 }
adamc@288	2492
adamc@436	2493 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436	2494 size_t len;
adamc@436	2495 char *r;
adamc@436	2496 struct tm stm;
adamc@436	2497
adamc@436	2498 if (localtime_r(&t, &stm)) {
adamc@436	2499 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2500 r = ctx->heap.front;
adamc@436	2501 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2502 ctx->heap.front += len+1;
adamc@436	2503 return r;
adamc@436	2504 } else
adamc@436	2505 return "<Invalid time>";
adamc@436	2506 }
adamc@288	2507
adamc@311	2508 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2509 char *endptr;
adamc@311	2510 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2511
adamc@288	2512 if (s != '\0' && endptr == '\0') {
adamc@311	2513 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2514 *r = n;
adamc@288	2515 return r;
adamc@288	2516 } else
adamc@288	2517 return NULL;
adamc@288	2518 }
adamc@289	2519
adamc@311	2520 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2521 char *endptr;
adamc@311	2522 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2523
adamc@289	2524 if (s != '\0' && endptr == '\0') {
adamc@311	2525 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2526 *r = n;
adamc@289	2527 return r;
adamc@289	2528 } else
adamc@289	2529 return NULL;
adamc@289	2530 }
adamc@289	2531
adamc@821	2532 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2533 if (s[0] == 0) {
adamc@821	2534 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2535 r[0] = 0;
adamc@821	2536 return r;
adamc@821	2537 } else if (s[1] != 0)
adamc@821	2538 return NULL;
adamc@821	2539 else {
adamc@821	2540 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2541 r[0] = s[0];
adamc@821	2542 return r;
adamc@821	2543 }
adamc@821	2544 }
adamc@821	2545
adamc@311	2546 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2547 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2548 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2549
adamc@289	2550 if (!strcasecmp (s, "True"))
adamc@289	2551 return &true;
adamc@289	2552 else if (!strcasecmp (s, "False"))
adamc@289	2553 return &false;
adamc@289	2554 else
adamc@289	2555 return NULL;
adamc@289	2556 }
adamc@292	2557
adamc@436	2558 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2559 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2560 struct tm stm;
adamc@436	2561
adamc@439	2562 if (dot) {
adamc@439	2563 *dot = 0;
adamc@439	2564 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2565 *dot = '.';
adamc@439	2566 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2567 *r = mktime(&stm);
adamc@439	2568 return r;
adamc@439	2569 }
adamc@439	2570 else {
adamc@439	2571 *dot = '.';
adamc@439	2572 return NULL;
adamc@439	2573 }
adamc@436	2574 }
adamc@439	2575 else {
adamc@439	2576 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2577 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2578 *r = mktime(&stm);
adamc@439	2579 return r;
adamc@439	2580 }
adamc@439	2581 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2582 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2583 *r = mktime(&stm);
adamc@439	2584 return r;
adamc@439	2585 }
adamc@439	2586 else
adamc@439	2587 return NULL;
adamc@439	2588 }
adamc@436	2589 }
adamc@436	2590
adamc@311	2591 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2592 char *endptr;
adamc@311	2593 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2594
adamc@292	2595 if (s != '\0' && endptr == '\0')
adamc@292	2596 return n;
adamc@292	2597 else
adamc@311	2598 uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292	2599 }
adamc@293	2600
adamc@682	2601 #include <errno.h>
adamc@682	2602
adamc@678	2603 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2604 unsigned long long n;
adamc@682	2605
adamc@682	2606 if (sscanf(s, "%llu", &n) < 1)
adamc@682	2607 uw_error(ctx, FATAL, "Can't parse channel: %s", s);
adamc@682	2608 else {
adamc@682	2609 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2610 return ch;
adamc@682	2611 }
adamc@682	2612 }
adamc@682	2613
adamc@682	2614 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2615 char *endptr;
adamc@682	2616 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2617
adamc@678	2618 if (s != '\0' && endptr == '\0')
adamc@678	2619 return n;
adamc@678	2620 else
adamc@682	2621 uw_error(ctx, FATAL, "Can't parse client: %s", s);
adamc@678	2622 }
adamc@678	2623
adamc@311	2624 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2625 char *endptr;
adamc@311	2626 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2627
adamc@293	2628 if (s != '\0' && endptr == '\0')
adamc@293	2629 return n;
adamc@293	2630 else
adamc@311	2631 uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293	2632 }
adamc@293	2633
adamc@821	2634 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2635 if (s[0] == 0)
adamc@821	2636 return 0;
adamc@821	2637 else if (s[1] != 0)
adamc@821	2638 uw_error(ctx, FATAL, "Can't parse char: %s", s);
adamc@821	2639 else
adamc@821	2640 return s[0];
adamc@821	2641 }
adamc@821	2642
adamc@311	2643 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2644 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2645 return uw_Basis_True;
adamc@296	2646 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2647 return uw_Basis_False;
adamc@293	2648 else
adamc@311	2649 uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293	2650 }
adamc@436	2651
adamc@436	2652 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2653 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2654 struct tm stm = {};
adamc@436	2655
adamc@438	2656 if (dot) {
adamc@438	2657 *dot = 0;
adamc@438	2658 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2659 *dot = '.';
adamc@438	2660 return mktime(&stm);
adamc@438	2661 }
adamc@438	2662 else {
adamc@438	2663 *dot = '.';
adamc@438	2664 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2665 }
adamc@438	2666 }
adamc@438	2667 else {
adamc@439	2668 if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439	2669 return mktime(&stm);
adamc@439	2670 else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438	2671 return mktime(&stm);
adamc@438	2672 else
adamc@438	2673 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2674 }
adamc@436	2675 }
adamc@457	2676
adamc@939	2677 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adamc@939	2678 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@939	2679 struct tm stm = {};
adamc@939	2680
adamc@939	2681 if (dot) {
adamc@939	2682 *dot = 0;
adamc@939	2683 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@939	2684 *dot = '.';
adamc@939	2685 return mktime(&stm);
adamc@939	2686 }
adamc@939	2687 else {
adamc@939	2688 *dot = '.';
adamc@939	2689 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2690 }
adamc@939	2691 }
adamc@939	2692 else {
adamc@939	2693 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@939	2694 return mktime(&stm);
adamc@939	2695 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@939	2696 return mktime(&stm);
adamc@939	2697 } else
adamc@939	2698 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2699 }
adamc@939	2700 }
adamc@939	2701
adamc@742	2702 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	2703 char *r = ctx->heap.front;
adamc@742	2704 uw_Basis_blob b = {len, r};
adamc@742	2705
adamc@742	2706 uw_check_heap(ctx, len);
adamc@742	2707
adamc@742	2708 while (*s) {
adamc@742	2709 if (s[0] == '\\') {
adamc@742	2710 if (s[1] == '\\') {
adamc@742	2711 *r++ = '\\';
adamc@742	2712 s += 2;
adamc@742	2713 } else if (isdigit(s[1]) && isdigit(s[2]) && isdigit(s[3])) {
adamc@742	2714 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	2715 s += 4;
adamc@742	2716 }
adamc@742	2717 else {
adamc@742	2718 *r++ = '\\';
adamc@742	2719 ++s;
adamc@742	2720 }
adamc@742	2721 } else {
adamc@742	2722 *r++ = s[0];
adamc@742	2723 ++s;
adamc@742	2724 }
adamc@742	2725 }
adamc@742	2726
adamc@742	2727 b.size = r - ctx->heap.front;
adamc@742	2728 ctx->heap.front = r;
adamc@742	2729 return b;
adamc@742	2730 }
adamc@742	2731
adamc@1052	2732 #define THE_PAST "expires=Mon, 01-01-1970 00:00:00 GMT"
adamc@1052	2733
adamc@463	2734 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	2735 int len = strlen(c);
adamc@854	2736 char *p = ctx->outHeaders.start;
adamc@474	2737
adamc@1134	2738 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	2739 char *p2;
adamc@474	2740 p += 13;
adamc@474	2741 p2 = strchr(p, '=');
adamc@474	2742
adamc@474	2743 if (p2) {
adamc@474	2744 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	2745
adamc@474	2746 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	2747 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	2748 return NULL;
adamc@1052	2749 else {
adamc@1052	2750 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	2751 memcpy(ret, p2+1, sz);
adamc@1052	2752 ret[sz] = 0;
adamc@1052	2753 return ret;
adamc@1052	2754 }
adamc@474	2755 }
adamc@474	2756 }
adamc@474	2757 }
adamc@463	2758
adamc@1134	2759 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	2760 char *p2;
adamc@1051	2761
adamc@854	2762 while (1) {
adamc@1051	2763 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	2764 if ((p2 = strchr(p, ';'))) {
adamc@1051	2765 size_t n = p2 - (p + len);
adamc@1051	2766 char *r = uw_malloc(ctx, n);
adamc@1051	2767 memcpy(r, p + 1 + len, n-1);
adamc@1051	2768 r[n-1] = 0;
adamc@1051	2769 return r;
adamc@1051	2770 } else
adamc@1051	2771 return p + 1 + len;
adamc@1134	2772 } else if ((p = strchr(p, ';')))
adamc@854	2773 p += 2;
adamc@463	2774 else
adamc@463	2775 return NULL;
adamc@463	2776 }
adamc@463	2777 }
adamc@792	2778
adamc@792	2779 return NULL;
adamc@457	2780 }
adamc@462	2781
adamc@1050	2782 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	2783 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	2784 uw_write_header(ctx, c);
adamc@462	2785 uw_write_header(ctx, "=");
adamc@462	2786 uw_write_header(ctx, v);
adamc@466	2787 uw_write_header(ctx, "; path=");
adamc@466	2788 uw_write_header(ctx, prefix);
adamc@1050	2789 if (expires) {
adamc@1050	2790 char formatted[30];
adamc@1050	2791 struct tm tm;
adamc@1050	2792
adamc@1050	2793 gmtime_r(expires, &tm);
adamc@1050	2794
adamc@1050	2795 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	2796
adamc@1050	2797 uw_write_header(ctx, "; expires=");
adamc@1050	2798 uw_write_header(ctx, formatted);
adamc@1050	2799 }
adamc@1050	2800 if (secure)
adamc@1050	2801 uw_write_header(ctx, "; secure");
adamc@462	2802 uw_write_header(ctx, "\r\n");
adamc@462	2803
adamc@462	2804 return uw_unit_v;
adamc@462	2805 }
adamc@667	2806
adamc@1050	2807 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	2808 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	2809 uw_write_header(ctx, c);
adamc@1050	2810 uw_write_header(ctx, "=; path=");
adamc@1050	2811 uw_write_header(ctx, prefix);
adamc@1052	2812 uw_write_header(ctx, "; " THE_PAST "\r\n");
adamc@1050	2813
adamc@1050	2814 return uw_unit_v;
adamc@1050	2815 }
adamc@1050	2816
adamc@1113	2817 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	2818
adamc@682	2819 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	2820 unsigned i;
adamc@682	2821 delta *d;
adamc@671	2822
adamc@682	2823 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	2824 if (ctx->deltas[i].client == client)
adamc@682	2825 return &ctx->deltas[i];
adamc@671	2826
adamc@682	2827 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	2828 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	2829 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	2830
adamc@682	2831 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adamc@1113	2832 buf_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	2833 }
adamc@671	2834
adamc@682	2835 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	2836 d->client = client;
adamc@682	2837 buf_reset(&d->msgs);
adamc@682	2838 return d;
adamc@671	2839 }
adamc@671	2840
adamc@668	2841 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	2842 if (ctx->client == NULL)
adamc@682	2843 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	2844
adamc@682	2845 return new_channel(ctx->client);
adamc@668	2846 }
adamc@668	2847
adamc@668	2848 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	2849 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	2850 size_t len;
adamc@682	2851 int preLen;
adamc@682	2852 char pre[INTS_MAX + 2];
adamc@668	2853
adamc@682	2854 len = strlen(msg);
adamc@682	2855
adamc@682	2856 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	2857
adamc@1113	2858 ctx_buf_append(ctx, "messages", &d->msgs, pre, preLen);
adamc@1113	2859 ctx_buf_append(ctx, "messages", &d->msgs, msg, len);
adamc@1113	2860 ctx_buf_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	2861
adamc@671	2862 return uw_unit_v;
adamc@668	2863 }
adamc@671	2864
adamc@1131	2865 int uw_rollback(uw_context ctx) {
adamc@1131	2866 int i;
adamc@1131	2867 cleanup *cl;
adamc@1131	2868
adamc@1131	2869 if (ctx->client)
adamc@1131	2870 release_client(ctx->client);
adamc@1131	2871
adamc@1131	2872 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	2873 cl->func(cl->arg);
adamc@1131	2874
adamc@1131	2875 ctx->cleanup_front = ctx->cleanup;
adamc@1131	2876
adamc@1131	2877 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	2878 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	2879 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	2880
adamc@1131	2881 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	2882 if (ctx->transactionals[i].free)
adamc@1131	2883 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@1131	2884
adamc@1144	2885 return ctx->app ? ctx->app->db_rollback(ctx) : 0;
adamc@1131	2886 }
adamc@1131	2887
adamc@671	2888 void uw_commit(uw_context ctx) {
adamc@1104	2889 int i;
adamc@1104	2890
adamc@1131	2891 if (uw_has_error(ctx)) {
adamc@1131	2892 uw_rollback(ctx);
adamc@1131	2893 return;
adamc@1131	2894 }
adamc@1131	2895
adamc@1104	2896 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	2897 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	2898 if (ctx->transactionals[i].commit) {
adamc@1083	2899 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	2900 if (uw_has_error(ctx)) {
adamc@1131	2901 uw_rollback(ctx);
adamc@1131	2902 return;
adamc@1131	2903 }
adamc@1131	2904 }
adamc@771	2905
adamc@1104	2906 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	2907 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	2908 if (ctx->transactionals[i].commit) {
adamc@1083	2909 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	2910 if (uw_has_error(ctx)) {
adamc@1131	2911 uw_rollback(ctx);
adamc@1131	2912 return;
adamc@1131	2913 }
adamc@1131	2914 }
adamc@1131	2915
adamc@1131	2916 if (ctx->app->db_commit(ctx)) {
adamc@1131	2917 uw_set_error_message(ctx, "Error running SQL COMMIT");
adamc@1131	2918 return;
adamc@1131	2919 }
adamc@682	2920
adamc@682	2921 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	2922 delta *d = &ctx->deltas[i];
adamc@682	2923 client *c = find_client(d->client);
adamc@682	2924
adamc@682	2925 assert (c != NULL && c->mode == USED);
adamc@682	2926
adamc@685	2927 client_send(c, &d->msgs);
adamc@682	2928 }
adamc@682	2929
adamc@682	2930 if (ctx->client)
adamc@685	2931 release_client(ctx->client);
adamc@771	2932
adamc@1104	2933 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	2934 if (ctx->transactionals[i].free)
adamc@1083	2935 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@916	2936
adamc@916	2937 // Splice script data into appropriate part of page
adamc@1065	2938 if (ctx->returning_indirectly \|\| ctx->script_header[0] == 0) {
adamc@995	2939 char *start = strstr(ctx->page.start, "<sc>");
adamc@995	2940 if (start) {
adamc@995	2941 memmove(start, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 4);
adamc@995	2942 ctx->page.front -= 4;
adamc@995	2943 }
adamc@995	2944 } else if (buf_used(&ctx->script) == 0) {
adamc@916	2945 size_t len = strlen(ctx->script_header);
adamc@916	2946 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2947 if (start) {
adamc@1113	2948 ctx_buf_check(ctx, "page", &ctx->page, buf_used(&ctx->page) - 4 + len);
adamc@917	2949 start = strstr(ctx->page.start, "<sc>");
adamc@916	2950 memmove(start + len, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2951 ctx->page.front += len - 4;
adamc@916	2952 memcpy(start, ctx->script_header, len);
adamc@916	2953 }
adamc@916	2954 } else {
adamc@916	2955 size_t lenH = strlen(ctx->script_header), len = buf_used(&ctx->script);
adamc@916	2956 size_t lenP = lenH + 40 + len;
adamc@916	2957 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2958 if (start) {
adamc@1113	2959 ctx_buf_check(ctx, "page", &ctx->page, buf_used(&ctx->page) - 4 + lenP);
adamc@917	2960 start = strstr(ctx->page.start, "<sc>");
adamc@916	2961 memmove(start + lenP, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2962 ctx->page.front += lenP - 4;
adamc@916	2963 memcpy(start, ctx->script_header, lenH);
adamc@916	2964 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916	2965 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916	2966 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916	2967 }
adamc@916	2968 }
adamc@671	2969 }
adamc@671	2970
adamc@683	2971
adamc@1113	2972 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	2973
adamc@771	2974 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adamc@771	2975 uw_callback free) {
adamc@771	2976 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	2977 if (ctx->used_transactionals+1 > uw_transactionals_max)
adamc@1113	2978 uw_error(ctx, FATAL, "Exceeded limit on number of transactionals");
adamc@1084	2979 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	2980 ++ctx->n_transactionals;
adamc@771	2981 }
adamc@771	2982
adamc@771	2983 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	2984 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	2985 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	2986 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	2987 }
adamc@771	2988
adamc@683	2989
adamc@683	2990 // "Garbage collection"
adamc@683	2991
adamc@1121	2992 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	2993 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	2994
adamc@1121	2995 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	2996 int r = setjmp(ctx->jmp_buf);
adamc@683	2997
adamc@1121	2998 if (r == 0)
adamc@1121	2999 uw_do_expunge(ctx, cli, data);
adamc@1121	3000 else
adamc@1121	3001 ctx->app->db_rollback(ctx);
adamc@1121	3002
adamc@1121	3003 uw_post_expunge(ctx, data);
adamc@683	3004
adamc@683	3005 return r;
adamc@683	3006 }
adamc@683	3007
adamc@683	3008 void uw_prune_clients(uw_context ctx) {
adamc@683	3009 client c, next, *prev = NULL;
adamc@683	3010 time_t cutoff;
adamc@683	3011
adamc@1094	3012 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3013
adamc@683	3014 pthread_mutex_lock(&clients_mutex);
adamc@683	3015
adamc@683	3016 for (c = clients_used; c; c = next) {
adamc@683	3017 next = c->next;
adamc@683	3018 pthread_mutex_lock(&c->lock);
adamc@685	3019 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3020 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3021 if (prev)
adamc@683	3022 prev->next = next;
adamc@683	3023 else
adamc@683	3024 clients_used = next;
adamc@684	3025 uw_reset(ctx);
adamc@683	3026 while (fk == UNLIMITED_RETRY) {
adamc@1121	3027 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3028 if (fk == UNLIMITED_RETRY)
adamc@684	3029 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3030 }
adamc@684	3031 if (fk == SUCCESS)
adamc@684	3032 free_client(c);
adamc@1121	3033 else
adamc@856	3034 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3035 }
adamc@683	3036 else
adamc@683	3037 prev = c;
adamc@683	3038 pthread_mutex_unlock(&c->lock);
adamc@683	3039 }
adamc@683	3040
adamc@683	3041 pthread_mutex_unlock(&clients_mutex);
adamc@683	3042 }
adamc@687	3043
adamc@687	3044 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3045 int r = setjmp(ctx->jmp_buf);
adamc@687	3046
adamc@687	3047 if (r == 0) {
adamc@1094	3048 if (ctx->app->db_begin(ctx))
adamc@687	3049 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@1094	3050 ctx->app->initializer(ctx);
adamc@1094	3051 if (ctx->app->db_commit(ctx))
adamc@687	3052 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3053 }
adamc@687	3054
adamc@687	3055 return r;
adamc@687	3056 }
adamc@717	3057
adamc@1065	3058 static int url_bad(uw_Basis_string s) {
adamc@1065	3059 for (; *s; ++s)
adamc@1065	3060 if (!isgraph(*s))
adamc@1065	3061 return 1;
adamc@1065	3062
adamc@1065	3063 return 0;
adamc@1065	3064 }
adamc@1065	3065
adamc@717	3066 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3067 if (url_bad(s))
adamc@1065	3068 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3069 if (ctx->app->check_url(s))
adamc@770	3070 return s;
adamc@770	3071 else
adamc@770	3072 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3073 }
adamc@734	3074
adamc@770	3075 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3076 if (url_bad(s))
adamc@1065	3077 return NULL;
adamc@1094	3078 if (ctx->app->check_url(s))
adamc@770	3079 return s;
adamc@770	3080 else
adamc@770	3081 return NULL;
adamc@770	3082 }
adamc@770	3083
adamc@770	3084 int mime_format(const char *s) {
adamc@770	3085 for (; *s; ++s)
adamc@770	3086 if (!isalnum(s) && s != '/' && s != '-' && s != '.')
adamc@770	3087 return 0;
adamc@770	3088
adamc@770	3089 return 1;
adamc@770	3090 }
adamc@770	3091
adamc@741	3092 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3093 if (!mime_format(s))
adamc@770	3094 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3095
adamc@1094	3096 if (ctx->app->check_mime(s))
adamc@770	3097 return s;
adamc@770	3098 else
adamc@770	3099 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3100 }
adamc@770	3101
adamc@770	3102 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3103 if (!mime_format(s))
adamc@770	3104 return NULL;
adamc@770	3105
adamc@1094	3106 if (ctx->app->check_mime(s))
adamc@770	3107 return s;
adamc@770	3108 else
adamc@770	3109 return NULL;
adamc@741	3110 }
adamc@741	3111
adamc@734	3112 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3113 return s ? s : "";
adamc@734	3114 }
adamc@734	3115
adamc@734	3116 extern int uw_hash_blocksize;
adamc@734	3117
adamc@734	3118 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3119 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3120 int i;
adamc@734	3121
adamc@734	3122 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3123 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3124
adamc@734	3125 return r;
adamc@734	3126 }
adamc@734	3127
adamc@734	3128 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@1094	3129 return ctx->app->cookie_sig(ctx);
adamc@734	3130 }
adamc@737	3131
adamc@737	3132 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3133 return f.name;
adamc@737	3134 }
adamc@737	3135
adamc@740	3136 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3137 return f.type;
adamc@740	3138 }
adamc@740	3139
adamc@745	3140 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3141 return b.size;
adamc@745	3142 }
adamc@745	3143
adamc@1119	3144 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3145 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3146
adamc@1119	3147 return b;
adamc@1119	3148 }
adamc@1119	3149
adamc@737	3150 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3151 return f.data;
adamc@737	3152 }
adamc@741	3153
adamc@741	3154 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3155 cleanup *cl;
adamc@741	3156 int len;
adamc@741	3157
adamc@1065	3158 ctx->returning_indirectly = 1;
adamc@741	3159 buf_reset(&ctx->outHeaders);
adamc@741	3160 buf_reset(&ctx->page);
adamc@741	3161
adamc@856	3162 uw_write_header(ctx, on_success);
adamc@856	3163 uw_write_header(ctx, "Content-Type: ");
adamc@741	3164 uw_write_header(ctx, mimeType);
adamc@741	3165 uw_write_header(ctx, "\r\nContent-Length: ");
adamc@1113	3166 ctx_buf_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3167 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3168 ctx->outHeaders.front += len;
adamc@1066	3169 uw_write_header(ctx, "\r\n");
adamc@741	3170
adamc@1113	3171 ctx_buf_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3172
adamc@741	3173 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3174 cl->func(cl->arg);
adamc@741	3175
adamc@741	3176 ctx->cleanup_front = ctx->cleanup;
adamc@741	3177
adamc@1065	3178 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3179 }
adamc@1065	3180
adamc@1065	3181 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3182 cleanup *cl;
adamc@1066	3183 char *s;
adamc@1065	3184
adamc@1065	3185 ctx->returning_indirectly = 1;
adamc@1066	3186 buf_reset(&ctx->page);
adamc@1113	3187 ctx_buf_check(ctx, "page", &ctx->page, buf_used(&ctx->outHeaders)+1);
adamc@1066	3188 memcpy(ctx->page.start, ctx->outHeaders.start, buf_used(&ctx->outHeaders));
adamc@1066	3189 ctx->page.start[buf_used(&ctx->outHeaders)] = 0;
adamc@1065	3190 buf_reset(&ctx->outHeaders);
adamc@1065	3191
adamc@1065	3192 uw_write_header(ctx, on_redirect);
adamc@1066	3193
adamc@1066	3194 s = strchr(ctx->page.start, '\n');
adamc@1066	3195 if (s) {
adamc@1066	3196 char *s2;
adamc@1134	3197 for (++s; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3198 *s2 = 0;
adamc@1066	3199 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3200 uw_write_header(ctx, s);
adamc@1066	3201 uw_write_header(ctx, "\n");
adamc@1066	3202 }
adamc@1066	3203 }
adamc@1066	3204 }
adamc@1066	3205
adamc@1065	3206 uw_write_header(ctx, "Location: ");
adamc@1065	3207 uw_write_header(ctx, url);
adamc@1065	3208 uw_write_header(ctx, "\r\n\r\n");
adamc@1065	3209
adamc@1065	3210 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3211 cl->func(cl->arg);
adamc@1065	3212
adamc@1065	3213 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3214
adamc@1065	3215 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3216 }
adamc@874	3217
adamc@874	3218 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adamc@874	3219 uw_Basis_string r = uw_malloc(ctx, strlen(s) + 1);
adamc@874	3220
adamc@874	3221 for (; *s; ++s) {
adamc@874	3222 if (s[0] == '\'') {
adamc@874	3223 *r++ = '\'';
adamc@874	3224 for (++s; *s; ++s) {
adamc@874	3225 if (s[0] == '\'') {
adamc@874	3226 *r++ = '\'';
adamc@874	3227 break;
adamc@874	3228 } else if (s[0] == '\\') {
adamc@874	3229 if (s[1] == '\\') {
adamc@874	3230 *r++ = '\\';
adamc@874	3231 *r++ = '\\';
adamc@874	3232 ++s;
adamc@874	3233 } else if (s[1] == '\'') {
adamc@874	3234 *r++ = '\\';
adamc@874	3235 *r++ = '\'';
adamc@874	3236 ++s;
adamc@874	3237 } else
adamc@874	3238 *r++ = '\'';
adamc@874	3239 } else
adamc@874	3240 *r++ = s[0];
adamc@874	3241 }
adamc@874	3242 if (*s == 0) break;
adamc@874	3243 } else if (s[0] == 'T' && s[1] == '.')
adamc@874	3244 ++s;
adamc@874	3245 else
adamc@874	3246 *r++ = s[0];
adamc@874	3247 }
adamc@874	3248
adamc@874	3249 return r;
adamc@874	3250 }
adamc@874	3251
adamc@922	3252 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3253 va_list ap;
adamc@922	3254 size_t len = 1;
adamc@922	3255 char s, r, *s2;
adamc@922	3256
adamc@922	3257 va_start(ap, ctx);
adamc@922	3258 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3259 len += strlen(s);
adamc@922	3260 va_end(ap);
adamc@922	3261
adamc@922	3262 r = uw_malloc(ctx, len);
adamc@922	3263 va_start(ap, ctx);
adamc@922	3264 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3265 while (*s)
adamc@922	3266 s2++ = s++;
adamc@922	3267 va_end(ap);
adamc@922	3268 *s2 = 0;
adamc@922	3269
adamc@922	3270 return r;
adamc@922	3271 }
adamc@1006	3272
adamc@1050	3273 const uw_Basis_time minTime = 0;
adamc@1050	3274
adamc@1006	3275 uw_Basis_time uw_Basis_now(uw_context ctx) {
adamc@1006	3276 return time(NULL);
adamc@1006	3277 }
adamc@1061	3278
adamc@1138	3279 uw_Basis_time uw_Basis_minusSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adamc@1138	3280 return tm - n;
adamc@1138	3281 }
adamc@1138	3282
adamc@1061	3283 void uw_get_global(uw_context ctx, char name) {
adamc@1061	3284 int i;
adamc@1061	3285
adamc@1061	3286 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3287 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	3288 return ctx->globals[i].data;
adamc@1061	3289
adamc@1061	3290 return NULL;
adamc@1061	3291 }
adamc@1061	3292
adamc@1113	3293 size_t uw_globals_max = SIZE_MAX;
adamc@1113	3294
adamc@1061	3295 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	3296 int i;
adamc@1061	3297
adamc@1061	3298 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3299 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	3300 if (ctx->globals[i].free)
adamc@1061	3301 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	3302 ctx->globals[i].data = data;
adamc@1061	3303 ctx->globals[i].free = free;
adamc@1061	3304 return;
adamc@1061	3305 }
adamc@1089	3306
adamc@1113	3307 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	3308 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	3309
adamc@1061	3310 ++ctx->n_globals;
adamc@1061	3311 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	3312 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	3313 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	3314 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	3315 }
adamc@1061	3316
adamc@1061	3317 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1063	3318 return !!isalnum(c);
adamc@1061	3319 }
adamc@1061	3320
adamc@1061	3321 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1063	3322 return !!isalpha(c);
adamc@1061	3323 }
adamc@1061	3324
adamc@1061	3325 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1063	3326 return !!isblank(c);
adamc@1061	3327 }
adamc@1061	3328
adamc@1061	3329 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1063	3330 return !!iscntrl(c);
adamc@1061	3331 }
adamc@1061	3332
adamc@1061	3333 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1063	3334 return !!isdigit(c);
adamc@1061	3335 }
adamc@1061	3336
adamc@1061	3337 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1063	3338 return !!isgraph(c);
adamc@1061	3339 }
adamc@1061	3340
adamc@1061	3341 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1063	3342 return !!islower(c);
adamc@1061	3343 }
adamc@1061	3344
adamc@1061	3345 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1063	3346 return !!isprint(c);
adamc@1061	3347 }
adamc@1061	3348
adamc@1061	3349 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1063	3350 return !!ispunct(c);
adamc@1061	3351 }
adamc@1061	3352
adamc@1061	3353 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1063	3354 return !!isspace(c);
adamc@1061	3355 }
adamc@1063	3356
adamc@1061	3357 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1063	3358 return !!isupper(c);
adamc@1061	3359 }
adamc@1061	3360
adamc@1061	3361 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1063	3362 return !!isxdigit(c);
adamc@1061	3363 }
adamc@1061	3364
adamc@1061	3365 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1061	3366 return tolower(c);
adamc@1061	3367 }
adamc@1061	3368
adamc@1061	3369 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1061	3370 return toupper(c);
adamc@1061	3371 }
adamc@1066	3372
adamc@1128	3373 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	3374 return (unsigned char)c;
adamc@1128	3375 }
adamc@1128	3376
adamc@1128	3377 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	3378 return n;
adamc@1128	3379 }
adamc@1128	3380
adamc@1066	3381 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	3382 return ctx->current_url;
adamc@1066	3383 }
adamc@1066	3384
adamc@1066	3385 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	3386 ctx->current_url = s;
adamc@1066	3387 }
adamc@1114	3388
adamc@1114	3389 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	3390 ctx->deadline = n;
adamc@1114	3391 }
adamc@1114	3392
adamc@1114	3393 void uw_check_deadline(uw_context ctx) {
adamc@1114	3394 if (uw_time > ctx->deadline)
adamc@1114	3395 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	3396 }
adamc@1115	3397
adamc@1115	3398 size_t uw_database_max = SIZE_MAX;
adamc@1120	3399
adamc@1120	3400 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
adamc@1120	3401 fprintf(stderr, "%s\n", s);
adamc@1120	3402
adamc@1120	3403 return uw_unit_v;
adamc@1120	3404 }

Mercurial > urweb

annotate src/c/urweb.c @ 1149:15767031950c