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

annotate src/c/urweb.c @ 1286:829da30fb808

Fix C-side jsification of UTF-8 strings

author	Adam Chlipala <adam@chlipala.net>
date	Tue, 10 Aug 2010 16:02:55 -0400
parents	236dc296c32d
children	b4480a56cab7

rev	line source
adamc@1268	1 #include "config.h"
adamc@1268	2
adamc@117	3 #include <stdlib.h>
adamc@102	4 #include <stdio.h>
adamc@117	5 #include <string.h>
adamc@457	6 #include <strings.h>
adamc@106	7 #include <ctype.h>
adamc@167	8 #include <setjmp.h>
adamc@167	9 #include <stdarg.h>
adamc@682	10 #include <assert.h>
adamc@741	11 #include <ctype.h>
adamc@1114	12 #include <limits.h>
adamc@1113	13 #include <stdint.h>
adamc@1094	14 #include <sys/types.h>
adamc@1094	15 #include <sys/socket.h>
adamc@102	16
adamc@667	17 #include <pthread.h>
adamc@667	18
adamc@102	19 #include "types.h"
adamc@102	20
adamc@311	21 uw_unit uw_unit_v = {};
adamc@102	22
adamc@667	23
adamc@667	24 // Socket extras
adamc@667	25
adamc@863	26 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667	27 while (len > 0) {
adamc@856	28 ssize_t n = send(sock, buf, len, 0);
adamc@856	29
adamc@856	30 if (n < 0)
adamc@856	31 return n;
adamc@856	32
adamc@856	33 buf += n;
adamc@856	34 len -= n;
adamc@856	35 }
adamc@856	36
adamc@856	37 return 0;
adamc@856	38 }
adamc@856	39
adamc@856	40 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856	41 while (len > 0) {
adamc@856	42 ssize_t n = write(fd, buf, len);
adamc@667	43
adamc@667	44 if (n < 0)
adamc@667	45 return n;
adamc@667	46
adamc@667	47 buf += n;
adamc@667	48 len -= n;
adamc@667	49 }
adamc@667	50
adamc@667	51 return 0;
adamc@667	52 }
adamc@667	53
adamc@667	54
adamc@667	55 // Buffers
adamc@667	56
adamc@667	57 typedef struct {
adamc@1113	58 size_t max;
adamc@667	59 char start, front, *back;
adamc@667	60 } buf;
adamc@667	61
adamc@1113	62 static void buf_init(size_t max, buf *b, size_t s) {
adamc@1113	63 b->max = max;
adamc@667	64 b->front = b->start = malloc(s);
adamc@667	65 b->back = b->front + s;
adamc@667	66 }
adamc@667	67
adamc@667	68 static void buf_free(buf *b) {
adamc@667	69 free(b->start);
adamc@667	70 }
adamc@667	71
adamc@667	72 static void buf_reset(buf *b) {
adamc@667	73 b->front = b->start;
adamc@667	74 }
adamc@667	75
adamc@1113	76 static int buf_check(buf *b, size_t extra) {
adamc@667	77 if (b->back - b->front < extra) {
adamc@667	78 size_t desired = b->front - b->start + extra, next;
adamc@667	79 char *new_heap;
adamc@667	80
adamc@667	81 next = b->back - b->start;
adamc@667	82 if (next == 0)
adamc@667	83 next = 1;
adamc@667	84 for (; next < desired; next *= 2);
adamc@667	85
adamc@1134	86 if (next > b->max) {
adamc@1113	87 if (desired <= b->max)
adamc@1113	88 next = desired;
adamc@1113	89 else
adamc@1113	90 return 1;
adamc@1134	91 }
adamc@1113	92
adamc@667	93 new_heap = realloc(b->start, next);
adamc@667	94 b->front = new_heap + (b->front - b->start);
adamc@667	95 b->back = new_heap + next;
adamc@667	96 b->start = new_heap;
adamc@667	97 }
adamc@1113	98
adamc@1113	99 return 0;
adamc@1113	100 }
adamc@1113	101
adamc@1113	102 __attribute__((noreturn)) void uw_error(uw_context, failure_kind, const char *, ...);
adamc@1113	103
adamc@1113	104 static void ctx_buf_check(uw_context ctx, const char kind, buf b, size_t extra) {
adamc@1113	105 if (buf_check(b, extra))
adamc@1113	106 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@667	107 }
adamc@667	108
adamc@667	109 static size_t buf_used(buf *b) {
adamc@667	110 return b->front - b->start;
adamc@667	111 }
adamc@667	112
adamc@667	113 static size_t buf_avail(buf *b) {
adamc@667	114 return b->back - b->start;
adamc@667	115 }
adamc@667	116
adamc@1113	117 static int buf_append(buf b, const char s, size_t len) {
adamc@1113	118 if (buf_check(b, len+1))
adamc@1113	119 return 1;
adamc@1113	120
adamc@1113	121 memcpy(b->front, s, len);
adamc@1113	122 b->front += len;
adamc@1113	123 *b->front = 0;
adamc@1113	124
adamc@1113	125 return 0;
adamc@1113	126 }
adamc@1113	127
adamc@1113	128 static void ctx_buf_append(uw_context ctx, const char kind, buf b, const char *s, size_t len) {
adamc@1113	129 ctx_buf_check(ctx, kind, b, len+1);
adamc@1113	130
adamc@668	131 memcpy(b->front, s, len);
adamc@668	132 b->front += len;
adamc@672	133 *b->front = 0;
adamc@668	134 }
adamc@667	135
adamc@668	136
adamc@672	137 // Persistent state types
adamc@667	138
adamc@667	139 typedef enum { UNUSED, USED } usage;
adamc@667	140
adamc@667	141 typedef struct client {
adamc@682	142 unsigned id;
adamc@667	143 usage mode;
adamc@682	144 int pass;
adamc@682	145 struct client *next;
adamc@689	146 pthread_mutex_t lock, pull_lock;
adamc@682	147 buf msgs;
adamc@682	148 int sock;
adamc@863	149 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	150 int (*close)(int fd);
adamc@682	151 time_t last_contact;
adamc@682	152 unsigned n_channels;
adamc@685	153 unsigned refcount;
adamc@1121	154 void *data;
adamc@667	155 } client;
adamc@667	156
adamc@672	157
adamc@672	158 // Persistent client state
adamc@672	159
adamc@682	160 static client *clients, clients_free, *clients_used;
adamc@682	161 static unsigned n_clients;
adamc@667	162
adamc@667	163 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@667	164
adamc@1113	165 size_t uw_messages_max = SIZE_MAX;
adamc@1113	166 size_t uw_clients_max = SIZE_MAX;
adamc@1113	167
adamc@1121	168 void *uw_init_client_data();
adamc@1121	169 void uw_free_client_data(void *);
adamc@1121	170 void uw_copy_client_data(void dst, void src);
adamc@1121	171
adamc@682	172 static client *new_client() {
adamc@667	173 client *c;
adamc@667	174
adamc@667	175 pthread_mutex_lock(&clients_mutex);
adamc@667	176
adamc@667	177 if (clients_free) {
adamc@667	178 c = clients_free;
adamc@682	179 clients_free = clients_free->next;
adamc@667	180 }
adamc@1113	181 else if (n_clients >= uw_clients_max)
adamc@1113	182 return NULL;
adamc@667	183 else {
adamc@667	184 ++n_clients;
adamc@667	185 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	186 c = malloc(sizeof(client));
adamc@667	187 c->id = n_clients-1;
adamc@682	188 pthread_mutex_init(&c->lock, NULL);
adamc@689	189 pthread_mutex_init(&c->pull_lock, NULL);
adamc@1113	190 buf_init(uw_messages_max, &c->msgs, 0);
adamc@667	191 clients[n_clients-1] = c;
adamc@667	192 }
adamc@667	193
adamc@682	194 pthread_mutex_lock(&c->lock);
adamc@667	195 c->mode = USED;
adamc@682	196 c->pass = rand();
adamc@682	197 c->sock = -1;
adamc@682	198 c->last_contact = time(NULL);
adamc@682	199 buf_reset(&c->msgs);
adamc@682	200 c->n_channels = 0;
adamc@685	201 c->refcount = 0;
adamc@1121	202 c->data = uw_init_client_data();
adamc@682	203 pthread_mutex_unlock(&c->lock);
adamc@682	204
adamc@682	205 c->next = clients_used;
adamc@682	206 clients_used = c;
adamc@667	207
adamc@667	208 pthread_mutex_unlock(&clients_mutex);
adamc@667	209
adamc@667	210 return c;
adamc@667	211 }
adamc@667	212
adamc@685	213 static void use_client(client *c) {
adamc@685	214 pthread_mutex_lock(&c->lock);
adamc@685	215 ++c->refcount;
adamc@685	216 pthread_mutex_unlock(&c->lock);
adamc@689	217 pthread_mutex_lock(&c->pull_lock);
adamc@685	218 }
adamc@685	219
adamc@685	220 static void release_client(client *c) {
adamc@689	221 pthread_mutex_unlock(&c->pull_lock);
adamc@685	222 pthread_mutex_lock(&c->lock);
adamc@685	223 --c->refcount;
adamc@685	224 pthread_mutex_unlock(&c->lock);
adamc@689	225
adamc@685	226 }
adamc@685	227
adamc@856	228 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adamc@667	229
adamc@682	230 static client *find_client(unsigned id) {
adamc@667	231 client *c;
adamc@667	232
adamc@667	233 pthread_mutex_lock(&clients_mutex);
adamc@667	234
adamc@667	235 if (id >= n_clients) {
adamc@667	236 pthread_mutex_unlock(&clients_mutex);
adamc@668	237 return NULL;
adamc@667	238 }
adamc@667	239
adamc@667	240 c = clients[id];
adamc@667	241
adamc@668	242 pthread_mutex_unlock(&clients_mutex);
adamc@668	243 return c;
adamc@668	244 }
adamc@668	245
adamc@856	246 static char *on_success = "HTTP/1.1 200 OK\r\n";
adamc@1065	247 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	248
adamc@856	249 void uw_set_on_success(char *s) {
adamc@856	250 on_success = s;
adamc@856	251 }
adamc@856	252
adamc@863	253 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	254 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	255 int (*close)(int fd),
adamc@864	256 void *logger_data, uw_logger log_error) {
adamc@682	257 client *c = find_client(id);
adamc@668	258
adamc@668	259 if (c == NULL) {
adamc@667	260 close(sock);
adamc@864	261 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	262 return;
adamc@667	263 }
adamc@667	264
adamc@682	265 pthread_mutex_lock(&c->lock);
adamc@671	266
adamc@682	267 if (c->mode != USED) {
adamc@682	268 pthread_mutex_unlock(&c->lock);
adamc@667	269 close(sock);
adamc@864	270 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	271 return;
adamc@667	272 }
adamc@667	273
adamc@682	274 if (pass != c->pass) {
adamc@682	275 pthread_mutex_unlock(&c->lock);
adamc@682	276 close(sock);
adamc@864	277 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	278 return;
adamc@667	279 }
adamc@667	280
adamc@682	281 if (c->sock != -1) {
adamc@863	282 c->close(c->sock);
adamc@682	283 c->sock = -1;
adamc@682	284 }
adamc@667	285
adamc@682	286 c->last_contact = time(NULL);
adamc@682	287
adamc@682	288 if (buf_used(&c->msgs) > 0) {
adamc@863	289 send(sock, on_success, strlen(on_success));
adamc@863	290 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863	291 send(sock, c->msgs.start, buf_used(&c->msgs));
adamc@682	292 buf_reset(&c->msgs);
adamc@667	293 close(sock);
adamc@667	294 }
adamc@863	295 else {
adamc@682	296 c->sock = sock;
adamc@863	297 c->send = send;
adamc@863	298 c->close = close;
adamc@863	299 }
adamc@667	300
adamc@682	301 pthread_mutex_unlock(&c->lock);
adamc@667	302 }
adamc@667	303
adamc@682	304 static void free_client(client *c) {
adamc@682	305 c->mode = UNUSED;
adamc@682	306 c->pass = -1;
adamc@667	307
adamc@682	308 c->next = clients_free;
adamc@682	309 clients_free = c;
adamc@667	310 }
adamc@667	311
adamc@682	312 static uw_Basis_channel new_channel(client *c) {
adamc@682	313 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	314 return ch;
adamc@668	315 }
adamc@668	316
adamc@685	317 static void client_send(client c, buf msg) {
adamc@685	318 pthread_mutex_lock(&c->lock);
adamc@671	319
adamc@682	320 if (c->sock != -1) {
adamc@863	321 c->send(c->sock, on_success, strlen(on_success));
adamc@863	322 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863	323 c->send(c->sock, msg->start, buf_used(msg));
adamc@863	324 c->close(c->sock);
adamc@682	325 c->sock = -1;
adamc@1113	326 } else if (buf_append(&c->msgs, msg->start, buf_used(msg)))
adamc@1113	327 fprintf(stderr, "Client message buffer size exceeded");
adamc@671	328
adamc@685	329 pthread_mutex_unlock(&c->lock);
adamc@668	330 }
adamc@668	331
adamc@668	332
adamc@668	333 // Global entry points
adamc@668	334
adamc@1164	335 extern void uw_global_custom();
adamc@1104	336 extern void uw_init_crypto();
adamc@1104	337
adamc@668	338 void uw_global_init() {
adamc@668	339 srand(time(NULL) ^ getpid());
adamc@668	340
adamc@668	341 clients = malloc(0);
adamc@1104	342
adamc@1164	343 uw_global_custom();
adamc@1104	344 uw_init_crypto();
adamc@1094	345 }
adamc@1094	346
adamc@1094	347 void uw_app_init(uw_app *app) {
adamc@1094	348 app->client_init();
adamc@668	349 }
adamc@668	350
adamc@1114	351 int uw_time = 0;
adamc@1114	352
adamc@668	353
adamc@667	354 // Single-request state
adamc@667	355
adamc@167	356 #define ERROR_BUF_LEN 1024
adamc@167	357
adamc@323	358 typedef struct regions {
adamc@323	359 struct regions *next;
adamc@323	360 } regions;
adamc@323	361
adamc@425	362 typedef struct {
adamc@425	363 void (func)(void);
adamc@425	364 void *arg;
adamc@425	365 } cleanup;
adamc@425	366
adamc@671	367 typedef struct {
adamc@682	368 unsigned client;
adamc@671	369 buf msgs;
adamc@682	370 } delta;
adamc@671	371
adamc@737	372 typedef enum {
adamc@759	373 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	374 } input_kind;
adamc@737	375
adamc@756	376 typedef struct input {
adamc@737	377 input_kind kind;
adamc@737	378 union {
adamc@737	379 char *normal;
adamc@739	380 uw_Basis_file file;
adamc@756	381 struct {
adamc@759	382 struct input fields, parent;
adamc@756	383 } subform;
adamc@759	384 struct {
adamc@759	385 struct input entries, parent;
adamc@759	386 } subforms;
adamc@759	387 struct {
adamc@759	388 struct input fields, next, *parent;
adamc@759	389 } entry;
adamc@737	390 } data;
adamc@737	391 } input;
adamc@737	392
adamc@771	393 typedef struct {
adamc@771	394 void *data;
adamc@771	395 uw_callback commit, rollback, free;
adamc@771	396 } transactional;
adamc@771	397
adamc@1061	398 typedef struct {
adamc@1061	399 char *name;
adamc@1061	400 void *data;
adamc@1061	401 void (free)(void);
adamc@1061	402 } global;
adamc@1061	403
adamc@311	404 struct uw_context {
adamc@1094	405 uw_app *app;
adamc@1094	406
adamc@854	407 char (get_header)(void , const char );
adamc@854	408 void *get_header_data;
adamc@457	409
adamc@666	410 buf outHeaders, page, heap, script;
adamc@1065	411 int returning_indirectly;
adamc@759	412 input inputs, subinputs, *cur_container;
adamc@1094	413 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	414
adamc@565	415 int source_count;
adamc@562	416
adamc@272	417 void *db;
adamc@272	418
adamc@167	419 jmp_buf jmp_buf;
adamc@167	420
adamc@323	421 regions *regions;
adamc@323	422
adamc@425	423 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	424
adamc@1094	425 const char *script_header;
adamc@643	426
adamc@736	427 int needs_push, needs_sig;
adamc@693	428
adamc@682	429 size_t n_deltas, used_deltas;
adamc@682	430 delta *deltas;
adamc@671	431
adamc@682	432 client *client;
adamc@682	433
adamc@771	434 transactional *transactionals;
adamc@771	435 size_t n_transactionals, used_transactionals;
adamc@771	436
adamc@1061	437 global *globals;
adamc@1061	438 size_t n_globals;
adamc@1061	439
adamc@1066	440 char *current_url;
adamc@1066	441
adamc@1114	442 int deadline;
adamc@1114	443
adamc@1121	444 void *client_data;
adamc@1121	445
adamc@167	446 char error_message[ERROR_BUF_LEN];
adamc@117	447 };
adamc@117	448
adamc@1113	449 size_t uw_headers_max = SIZE_MAX;
adamc@1113	450 size_t uw_page_max = SIZE_MAX;
adamc@1113	451 size_t uw_heap_max = SIZE_MAX;
adamc@1113	452 size_t uw_script_max = SIZE_MAX;
adamc@1113	453
adamc@687	454 uw_context uw_init() {
adamc@311	455 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	456
adamc@1094	457 ctx->app = NULL;
adamc@1094	458
adamc@854	459 ctx->get_header = NULL;
adamc@854	460 ctx->get_header_data = NULL;
adamc@457	461
adamc@1113	462 buf_init(uw_headers_max, &ctx->outHeaders, 0);
adamc@1113	463 buf_init(uw_page_max, &ctx->page, 0);
adamc@1065	464 ctx->returning_indirectly = 0;
adamc@1113	465 buf_init(uw_heap_max, &ctx->heap, 0);
adamc@1113	466 buf_init(uw_script_max, &ctx->script, 1);
adamc@667	467 ctx->script.start[0] = 0;
adamc@136	468
adamc@1094	469 ctx->inputs = malloc(0);
adamc@759	470 ctx->cur_container = NULL;
adamc@756	471 ctx->subinputs = malloc(0);
adamc@1094	472 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	473
adamc@272	474 ctx->db = NULL;
adamc@272	475
adamc@323	476 ctx->regions = NULL;
adamc@323	477
adamc@425	478 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	479
adamc@643	480 ctx->script_header = "";
adamc@693	481 ctx->needs_push = 0;
adamc@736	482 ctx->needs_sig = 0;
adamc@1104	483
adamc@565	484 ctx->source_count = 0;
adamc@562	485
adamc@682	486 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	487 ctx->deltas = malloc(0);
adamc@671	488
adamc@700	489 ctx->client = NULL;
adamc@700	490
adamc@700	491 ctx->error_message[0] = 0;
adamc@700	492
adamc@771	493 ctx->transactionals = malloc(0);
adamc@771	494 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	495
adamc@1061	496 ctx->globals = malloc(0);
adamc@1061	497 ctx->n_globals = 0;
adamc@1061	498
adamc@1066	499 ctx->current_url = "";
adamc@1066	500
adamc@1114	501 ctx->deadline = INT_MAX;
adamc@1114	502
adamc@1121	503 ctx->client_data = uw_init_client_data();
adamc@1121	504
adamc@117	505 return ctx;
adamc@106	506 }
adamc@106	507
adamc@1113	508 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	509
adamc@1121	510 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	511 return ctx->app;
adamc@1121	512 }
adamc@1121	513
adamc@1113	514 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	515 ctx->app = app;
adamc@1094	516
adamc@1105	517 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	518 if (app->inputs_len > uw_inputs_max)
adamc@1113	519 return 1;
adamc@1113	520
adamc@1094	521 ctx->sz_inputs = app->inputs_len;
adamc@1094	522 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	523 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	524 }
adamc@1134	525
adamc@1134	526 return 0;
adamc@1094	527 }
adamc@1094	528
adamc@1121	529 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	530 uw_copy_client_data(ctx->client_data, data);
adamc@1121	531 }
adamc@1121	532
adamc@311	533 void uw_set_db(uw_context ctx, void *db) {
adamc@272	534 ctx->db = db;
adamc@272	535 }
adamc@272	536
adamc@311	537 void *uw_get_db(uw_context ctx) {
adamc@272	538 return ctx->db;
adamc@272	539 }
adamc@272	540
adamc@311	541 void uw_free(uw_context ctx) {
adamc@671	542 size_t i;
adamc@671	543
adamc@666	544 buf_free(&ctx->outHeaders);
adamc@666	545 buf_free(&ctx->script);
adamc@666	546 buf_free(&ctx->page);
adamc@666	547 buf_free(&ctx->heap);
adamc@144	548 free(ctx->inputs);
adamc@756	549 free(ctx->subinputs);
adamc@425	550 free(ctx->cleanup);
adamc@771	551 free(ctx->transactionals);
adamc@1121	552 uw_free_client_data(ctx->client_data);
adamc@671	553
adamc@682	554 for (i = 0; i < ctx->n_deltas; ++i)
adamc@671	555 buf_free(&ctx->deltas[i].msgs);
adamc@671	556
adamc@1061	557 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	558 if (ctx->globals[i].free)
adamc@1089	559 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	560
adamc@136	561 free(ctx);
adamc@136	562 }
adamc@136	563
adamc@562	564 void uw_reset_keep_error_message(uw_context ctx) {
adamc@666	565 buf_reset(&ctx->outHeaders);
adamc@666	566 buf_reset(&ctx->script);
adamc@667	567 ctx->script.start[0] = 0;
adamc@666	568 buf_reset(&ctx->page);
adamc@1065	569 ctx->returning_indirectly = 0;
adamc@666	570 buf_reset(&ctx->heap);
adamc@323	571 ctx->regions = NULL;
adamc@425	572 ctx->cleanup_front = ctx->cleanup;
adamc@565	573 ctx->source_count = 0;
adamc@682	574 ctx->used_deltas = 0;
adamc@682	575 ctx->client = NULL;
adamc@759	576 ctx->cur_container = NULL;
adamc@771	577 ctx->used_transactionals = 0;
adamc@1117	578 ctx->script_header = "";
adamc@167	579 }
adamc@167	580
adamc@562	581 void uw_reset_keep_request(uw_context ctx) {
adamc@562	582 uw_reset_keep_error_message(ctx);
adamc@562	583 ctx->error_message[0] = 0;
adamc@167	584 }
adamc@167	585
adamc@311	586 void uw_reset(uw_context ctx) {
adamc@311	587 uw_reset_keep_request(ctx);
adamc@1105	588 if (ctx->app)
adamc@1105	589 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	590 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adamc@756	591 ctx->used_subinputs = 0;
adamc@144	592 }
adamc@144	593
adamc@311	594 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	595 int r = setjmp(ctx->jmp_buf);
adamc@272	596
adamc@1105	597 if (r == 0 && ctx->app)
adamc@1094	598 ctx->app->db_init(ctx);
adamc@272	599
adamc@272	600 return r;
adamc@272	601 }
adamc@272	602
adamc@1118	603 void uw_close(uw_context ctx) {
adamc@1118	604 ctx->app->db_close(ctx);
adamc@1118	605 }
adamc@1118	606
adamc@854	607 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	608 ctx->get_header = get_header;
adamc@854	609 ctx->get_header_data = get_header_data;
adamc@742	610 }
adamc@742	611
adamc@801	612 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	613 va_list ap;
adamc@801	614 va_start(ap, fmt);
adamc@801	615
adamc@801	616 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	617 }
adamc@801	618
adamc@1131	619 int uw_has_error(uw_context ctx) {
adamc@1131	620 return ctx->error_message[0] != 0;
adamc@1131	621 }
adamc@1131	622
adamc@311	623 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	624 cleanup *cl;
adamc@425	625
adamc@167	626 va_list ap;
adamc@167	627 va_start(ap, fmt);
adamc@167	628
adamc@167	629 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	630
adamc@425	631 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	632 cl->func(cl->arg);
adamc@425	633
adamc@425	634 ctx->cleanup_front = ctx->cleanup;
adamc@425	635
adamc@190	636 longjmp(ctx->jmp_buf, fk);
adamc@167	637 }
adamc@167	638
adamc@1113	639 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	640
adamc@425	641 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	642 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	643 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	644 if (len == 0)
adamc@425	645 newLen = 1;
adamc@425	646 else
adamc@428	647 newLen = len * 2;
adamc@1113	648
adamc@1134	649 if (newLen > uw_cleanup_max) {
adamc@1113	650 if (len+1 <= uw_cleanup_max)
adamc@1113	651 newLen = uw_cleanup_max;
adamc@1113	652 else
adamc@1113	653 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	654 }
adamc@1113	655
adamc@470	656 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	657 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	658 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	659 }
adamc@425	660
adamc@425	661 ctx->cleanup_front->func = func;
adamc@425	662 ctx->cleanup_front->arg = arg;
adamc@425	663 ++ctx->cleanup_front;
adamc@425	664 }
adamc@425	665
adamc@682	666 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adamc@854	667 return ctx->get_header(ctx->get_header_data, h);
adamc@682	668 }
adamc@682	669
adamc@682	670 void uw_login(uw_context ctx) {
adamc@693	671 if (ctx->needs_push) {
adamc@682	672 char id_s, pass_s;
adamc@682	673
adamc@682	674 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682	675 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682	676 unsigned id = atoi(id_s);
adamc@682	677 int pass = atoi(pass_s);
adamc@682	678 client *c = find_client(id);
adamc@682	679
adamc@682	680 if (c == NULL)
adamc@682	681 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", id_s, pass_s);
adamc@682	682 else {
adamc@685	683 use_client(c);
adamc@682	684 ctx->client = c;
adamc@682	685
adamc@682	686 if (c->mode != USED)
adamc@682	687 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682	688 if (c->pass != pass)
adamc@682	689 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682	690 }
adamc@682	691 } else {
adamc@682	692 client *c = new_client();
adamc@1113	693
adamc@1113	694 if (c == NULL)
adamc@1113	695 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adamc@1113	696
adamc@685	697 use_client(c);
adamc@1121	698 uw_copy_client_data(c->data, ctx->client_data);
adamc@682	699 ctx->client = c;
adamc@864	700 }
adamc@682	701 }
adamc@682	702 }
adamc@682	703
adamc@671	704 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	705 int r = setjmp(ctx->jmp_buf);
adamc@671	706
adamc@671	707 if (r == 0) {
adamc@1094	708 if (ctx->app->db_begin(ctx))
adamc@671	709 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adamc@682	710
adamc@1094	711 ctx->app->handle(ctx, path);
adamc@671	712 }
adamc@671	713
adamc@671	714 return r;
adamc@671	715 }
adamc@671	716
adamc@772	717 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	718 if (ctx->client == NULL)
adamc@682	719 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	720
adamc@682	721 return ctx->client->id;
adamc@682	722 }
adamc@682	723
adamc@425	724 void uw_pop_cleanup(uw_context ctx) {
adamc@425	725 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	726 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	727
adamc@425	728 --ctx->cleanup_front;
adamc@425	729 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	730 }
adamc@425	731
adamc@311	732 char *uw_error_message(uw_context ctx) {
adamc@167	733 return ctx->error_message;
adamc@167	734 }
adamc@167	735
adamc@1115	736 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	737 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	738 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	739 }
adamc@1115	740
adamc@759	741 static input *INP(uw_context ctx) {
adamc@759	742 if (ctx->cur_container == NULL)
adamc@759	743 return ctx->inputs;
adamc@759	744 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	745 return ctx->cur_container->data.subform.fields;
adamc@759	746 else if (ctx->cur_container->kind == ENTRY)
adamc@759	747 return ctx->cur_container->data.entry.fields;
adamc@759	748 else
adamc@760	749 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	750 }
adamc@759	751
adamc@760	752 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	753 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	754 *ptr += new_start - old_start;
adamc@760	755 }
adamc@760	756
adamc@760	757 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	758 switch (x->kind) {
adamc@759	759 case SUBFORM:
adamc@760	760 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	761 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	762 break;
adamc@759	763 case SUBFORMS:
adamc@760	764 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	765 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	766 break;
adamc@759	767 case ENTRY:
adamc@760	768 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	769 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	770 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	771 break;
adamc@1134	772 default:
adamc@1134	773 break;
adamc@759	774 }
adamc@759	775 }
adamc@759	776
adamc@1113	777 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	778
adamc@759	779 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	780 size_t i;
adamc@759	781 input *r;
adamc@759	782
adamc@759	783 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	784 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	785 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	786
adamc@759	787 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	788
adamc@760	789 if (ctx->subinputs != new_subinputs) {
adamc@760	790 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	791 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	792 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	793 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	794
adamc@760	795 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	796
adamc@760	797 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	798 ctx->subinputs = new_subinputs;
adamc@760	799 }
adamc@759	800 }
adamc@759	801
adamc@759	802 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	803
adamc@759	804 for (i = 0; i < len; ++i)
adamc@759	805 ctx->subinputs[ctx->used_subinputs++].kind = UNUSED;
adamc@759	806
adamc@759	807 return r;
adamc@759	808 }
adamc@756	809
adamc@801	810 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	811 //printf("Input name %s\n", name);
adamc@1038	812
adamc@756	813 if (!strcasecmp(name, ".b")) {
adamc@1094	814 int n = ctx->app->input_num(value);
adamc@756	815 input *inps;
adamc@756	816
adamc@801	817 if (n < 0) {
adamc@801	818 uw_set_error(ctx, "Bad subform name %s", value);
adamc@801	819 return -1;
adamc@801	820 }
adamc@801	821
adamc@1094	822 if (n >= ctx->app->inputs_len) {
adamc@801	823 uw_set_error(ctx, "For subform name %s, index %d is out of range", value, n);
adamc@801	824 return -1;
adamc@801	825 }
adamc@756	826
adamc@1094	827 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	828
adamc@759	829 INP(ctx)[n].kind = SUBFORM;
adamc@759	830 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	831 INP(ctx)[n].data.subform.fields = inps;
adamc@759	832 ctx->cur_container = &INP(ctx)[n];
adamc@756	833 } else if (!strcasecmp(name, ".e")) {
adamc@756	834 input *tmp;
adamc@756	835
adamc@801	836 if (ctx->cur_container == NULL) {
adamc@801	837 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	838 return -1;
adamc@801	839 }
adamc@756	840
adamc@759	841 tmp = ctx->cur_container;
adamc@759	842 switch (tmp->kind) {
adamc@759	843 case SUBFORM:
adamc@759	844 ctx->cur_container = tmp->data.subform.parent;
adamc@759	845 tmp->data.subform.parent = NULL;
adamc@759	846 break;
adamc@759	847 case SUBFORMS:
adamc@759	848 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	849 tmp->data.subforms.parent = NULL;
adamc@759	850 break;
adamc@759	851 case ENTRY:
adamc@759	852 ctx->cur_container = tmp->data.entry.parent;
adamc@759	853 break;
adamc@759	854 default:
adamc@801	855 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	856 return -1;
adamc@759	857 }
adamc@759	858 } else if (!strcasecmp(name, ".s")) {
adamc@1094	859 int n = ctx->app->input_num(value);
adamc@759	860
adamc@801	861 if (n < 0) {
adamc@801	862 uw_set_error(ctx, "Bad subforms name %s", value);
adamc@801	863 return -1;
adamc@801	864 }
adamc@801	865
adamc@1094	866 if (n >= ctx->app->inputs_len) {
adamc@801	867 uw_set_error(ctx, "For subforms name %s, index %d is out of range", value, n);
adamc@801	868 return -1;
adamc@801	869 }
adamc@759	870
adamc@759	871 INP(ctx)[n].kind = SUBFORMS;
adamc@759	872 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	873 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	874 ctx->cur_container = &INP(ctx)[n];
adamc@759	875 } else if (!strcasecmp(name, ".i")) {
adamc@759	876 input *inps;
adamc@759	877
adamc@801	878 if (!ctx->cur_container) {
adamc@801	879 uw_set_error(ctx, "New entry without container");
adamc@801	880 return -1;
adamc@801	881 }
adamc@801	882
adamc@801	883 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	884 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	885 return -1;
adamc@801	886 }
adamc@759	887
adamc@1094	888 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	889
adamc@759	890 inps->kind = ENTRY;
adamc@759	891 inps->data.entry.parent = ctx->cur_container;
adamc@759	892 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	893 ctx->cur_container->data.subforms.entries = inps;
adamc@759	894
adamc@759	895 inps->data.entry.fields = inps+1;
adamc@759	896 ctx->cur_container = inps;
adamc@756	897 } else {
adamc@1094	898 int n = ctx->app->input_num(name);
adamc@756	899
adamc@801	900 if (n < 0) {
adamc@1038	901 if (!strcmp(name, "null"))
adamc@1038	902 return 0;
adamc@801	903 uw_set_error(ctx, "Bad input name %s", name);
adamc@801	904 return -1;
adamc@801	905 }
adamc@801	906
adamc@1094	907 if (n >= ctx->app->inputs_len) {
adamc@801	908 uw_set_error(ctx, "For input name %s, index %d is out of range", name, n);
adamc@801	909 return -1;
adamc@801	910 }
adamc@756	911
adamc@756	912 INP(ctx)[n].kind = NORMAL;
adamc@756	913 INP(ctx)[n].data.normal = value;
adamc@756	914 }
adamc@801	915
adamc@801	916 return 0;
adamc@144	917 }
adamc@144	918
adamc@311	919 char *uw_get_input(uw_context ctx, int n) {
adamc@169	920 if (n < 0)
adamc@311	921 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	922 if (n >= ctx->app->inputs_len)
adamc@311	923 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	924
adamc@756	925 switch (INP(ctx)[n].kind) {
adamc@737	926 case UNSET:
adamc@737	927 return NULL;
adamc@739	928 case FIL:
adamc@739	929 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	930 case SUBFORM:
adamc@756	931 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	932 case SUBFORMS:
adamc@759	933 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	934 case ENTRY:
adamc@759	935 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	936 case NORMAL:
adamc@756	937 return INP(ctx)[n].data.normal;
adamc@737	938 default:
adamc@737	939 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	940 }
adamc@138	941 }
adamc@138	942
adamc@311	943 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	944 if (n < 0)
adamc@311	945 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	946 if (n >= ctx->app->inputs_len)
adamc@311	947 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	948
adamc@756	949 switch (INP(ctx)[n].kind) {
adamc@737	950 case UNSET:
adamc@737	951 return "";
adamc@739	952 case FIL:
adamc@739	953 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	954 case SUBFORM:
adamc@756	955 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	956 case SUBFORMS:
adamc@759	957 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	958 case ENTRY:
adamc@759	959 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	960 case NORMAL:
adamc@756	961 return INP(ctx)[n].data.normal;
adamc@737	962 default:
adamc@737	963 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	964 }
adamc@737	965 }
adamc@737	966
adamc@801	967 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	968 int n = ctx->app->input_num(name);
adamc@737	969
adamc@801	970 if (n < 0) {
adamc@801	971 uw_set_error(ctx, "Bad file input name %s", name);
adamc@801	972 return -1;
adamc@801	973 }
adamc@801	974
adamc@1094	975 if (n >= ctx->app->inputs_len) {
adamc@801	976 uw_set_error(ctx, "For file input name %s, index %d is out of range", name, n);
adamc@801	977 return -1;
adamc@801	978 }
adamc@737	979
adamc@739	980 ctx->inputs[n].kind = FIL;
adamc@739	981 ctx->inputs[n].data.file = f;
adamc@801	982
adamc@801	983 return 0;
adamc@737	984 }
adamc@737	985
adamc@739	986 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	987
adamc@739	988 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	989 if (n < 0)
adamc@737	990 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	991 if (n >= ctx->app->inputs_len)
adamc@737	992 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	993
adamc@756	994 switch (INP(ctx)[n].kind) {
adamc@737	995 case UNSET:
adamc@737	996 {
adamc@739	997 char *data = uw_malloc(ctx, 0);
adamc@740	998 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	999 return f;
adamc@737	1000 }
adamc@739	1001 case FIL:
adamc@756	1002 return INP(ctx)[n].data.file;
adamc@737	1003 case NORMAL:
adamc@737	1004 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1005 case SUBFORM:
adamc@756	1006 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1007 case SUBFORMS:
adamc@759	1008 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1009 case ENTRY:
adamc@759	1010 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1011 default:
adamc@737	1012 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1013 }
adamc@190	1014 }
adamc@190	1015
adamc@756	1016 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1017 if (n < 0)
adamc@756	1018 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1019 if (n >= ctx->app->inputs_len)
adamc@756	1020 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1021
adamc@756	1022 switch (INP(ctx)[n].kind) {
adamc@756	1023 case UNSET:
adamc@756	1024 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1025 case FIL:
adamc@756	1026 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1027 case NORMAL:
adamc@756	1028 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1029 case SUBFORMS:
adamc@759	1030 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1031 case ENTRY:
adamc@759	1032 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1033 case SUBFORM:
adamc@759	1034 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1035 ctx->cur_container = &INP(ctx)[n];
adamc@756	1036 return;
adamc@756	1037 default:
adamc@756	1038 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1039 }
adamc@756	1040 }
adamc@756	1041
adamc@756	1042 void uw_leave_subform(uw_context ctx) {
adamc@756	1043 input *tmp;
adamc@756	1044
adamc@759	1045 if (ctx->cur_container == NULL)
adamc@756	1046 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1047
adamc@759	1048 tmp = ctx->cur_container;
adamc@759	1049 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1050 tmp->data.subform.parent = NULL;
adamc@759	1051 }
adamc@759	1052
adamc@759	1053 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1054 input *inps;
adamc@759	1055
adamc@759	1056 if (n < 0)
adamc@759	1057 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1058 if (n >= ctx->app->inputs_len)
adamc@759	1059 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1060
adamc@759	1061 switch (INP(ctx)[n].kind) {
adamc@759	1062 case UNSET:
adamc@759	1063 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1064 case FIL:
adamc@759	1065 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1066 case NORMAL:
adamc@759	1067 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1068 case SUBFORM:
adamc@759	1069 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1070 case ENTRY:
adamc@759	1071 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1072 case SUBFORMS:
adamc@759	1073 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1074 if (inps) {
adamc@759	1075 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1076 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1077 return 1;
adamc@759	1078 } else
adamc@759	1079 return 0;
adamc@759	1080 default:
adamc@759	1081 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1082 }
adamc@759	1083 }
adamc@759	1084
adamc@759	1085 int uw_next_entry(uw_context ctx) {
adamc@759	1086 if (ctx->cur_container == NULL)
adamc@759	1087 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1088
adamc@759	1089 switch (ctx->cur_container->kind) {
adamc@759	1090 case UNSET:
adamc@759	1091 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1092 case FIL:
adamc@759	1093 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1094 case NORMAL:
adamc@759	1095 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1096 case SUBFORM:
adamc@759	1097 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1098 case SUBFORMS:
adamc@759	1099 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1100 case ENTRY:
adamc@759	1101 if (ctx->cur_container->data.entry.next) {
adamc@759	1102 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1103 return 1;
adamc@759	1104 } else {
adamc@759	1105 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1106 return 0;
adamc@759	1107 }
adamc@759	1108 default:
adamc@759	1109 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1110 }
adamc@756	1111 }
adamc@756	1112
adamc@643	1113 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1114 ctx->script_header = s;
adamc@643	1115 }
adamc@643	1116
adamc@1094	1117 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1118 return ctx->app->url_prefix;
adamc@667	1119 }
adamc@667	1120
adamc@693	1121 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1122 ctx->needs_push = n;
adamc@693	1123 }
adamc@693	1124
adamc@736	1125 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1126 ctx->needs_sig = n;
adamc@736	1127 }
adamc@736	1128
adamc@667	1129
adamc@1113	1130 static void buf_check_ctx(uw_context ctx, const char kind, buf b, size_t extra, const char *desc) {
adamc@666	1131 if (b->back - b->front < extra) {
adamc@666	1132 size_t desired = b->front - b->start + extra, next;
adamc@136	1133 char *new_heap;
adamc@136	1134
adamc@666	1135 next = b->back - b->start;
adamc@317	1136 if (next == 0)
adamc@317	1137 next = 1;
adamc@317	1138 for (; next < desired; next *= 2);
adamc@136	1139
adamc@1134	1140 if (next > b->max) {
adamc@1113	1141 if (desired <= b->max)
adamc@1113	1142 next = desired;
adamc@1113	1143 else
adamc@1113	1144 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1145 }
adamc@1113	1146
adamc@666	1147 new_heap = realloc(b->start, next);
adamc@666	1148 b->front = new_heap + (b->front - b->start);
adamc@666	1149 b->back = new_heap + next;
adamc@136	1150
adamc@667	1151 if (new_heap != b->start) {
adamc@666	1152 b->start = new_heap;
adamc@666	1153 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously", desc);
adamc@136	1154 }
adamc@136	1155
adamc@666	1156 b->start = new_heap;
adamc@136	1157 }
adamc@136	1158 }
adamc@136	1159
adamc@832	1160 void uw_check_heap(uw_context ctx, size_t extra) {
adamc@1113	1161 buf_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1162 }
adamc@666	1163
adamc@832	1164 char *uw_heap_front(uw_context ctx) {
adamc@832	1165 return ctx->heap.front;
adamc@832	1166 }
adamc@832	1167
adamc@832	1168 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1169 ctx->heap.front = fr;
adamc@832	1170 }
adamc@832	1171
adamc@311	1172 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136	1173 void *result;
adamc@136	1174
adamc@311	1175 uw_check_heap(ctx, len);
adamc@136	1176
adamc@666	1177 result = ctx->heap.front;
adamc@666	1178 ctx->heap.front += len;
adamc@136	1179 return result;
adamc@117	1180 }
adamc@117	1181
adamc@323	1182 void uw_begin_region(uw_context ctx) {
adamc@666	1183 regions r = (regions ) ctx->heap.front;
adamc@323	1184
adamc@323	1185 uw_check_heap(ctx, sizeof(regions));
adamc@323	1186
adamc@666	1187 ctx->heap.front += sizeof(regions);
adamc@323	1188
adamc@323	1189 r->next = ctx->regions;
adamc@323	1190 ctx->regions = r;
adamc@323	1191 }
adamc@323	1192
adamc@323	1193 void uw_end_region(uw_context ctx) {
adamc@323	1194 regions *r = ctx->regions;
adamc@323	1195
adamc@323	1196 if (r == NULL)
adamc@323	1197 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1198
adamc@666	1199 ctx->heap.front = (char *) r;
adamc@323	1200 ctx->regions = r->next;
adamc@323	1201 }
adamc@323	1202
adamc@324	1203 void uw_memstats(uw_context ctx) {
adamc@1134	1204 printf("Headers: %lu/%lu\n", (unsigned long)buf_used(&ctx->outHeaders), (unsigned long)buf_avail(&ctx->outHeaders));
adamc@1134	1205 printf("Script: %lu/%lu\n", (unsigned long)buf_used(&ctx->script), (unsigned long)buf_avail(&ctx->script));
adamc@1134	1206 printf("Page: %lu/%lu\n", (unsigned long)buf_used(&ctx->page), (unsigned long)buf_avail(&ctx->page));
adamc@1134	1207 printf("Heap: %lu/%lu\n", (unsigned long)buf_used(&ctx->heap), (unsigned long)buf_avail(&ctx->heap));
adamc@324	1208 }
adamc@324	1209
adamc@311	1210 int uw_send(uw_context ctx, int sock) {
adamc@666	1211 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462	1212
adamc@462	1213 if (n < 0)
adamc@462	1214 return n;
adamc@462	1215
adamc@462	1216 n = uw_really_send(sock, "\r\n", 2);
adamc@462	1217
adamc@462	1218 if (n < 0)
adamc@462	1219 return n;
adamc@462	1220
adamc@666	1221 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462	1222 }
adamc@462	1223
adamc@856	1224 int uw_print(uw_context ctx, int fd) {
adamc@856	1225 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1226
adamc@856	1227 if (n < 0)
adamc@856	1228 return n;
adamc@856	1229
adamc@856	1230 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1231
adamc@856	1232 if (n < 0)
adamc@856	1233 return n;
adamc@856	1234
adamc@856	1235 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1236 }
adamc@856	1237
adamc@860	1238 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1239 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1240
adamc@860	1241 if (n < 0)
adamc@860	1242 return n;
adamc@860	1243
adamc@860	1244 n = output(data, "\r\n", 2);
adamc@860	1245
adamc@860	1246 if (n < 0)
adamc@860	1247 return n;
adamc@860	1248
adamc@860	1249 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1250 }
adamc@860	1251
adamc@462	1252 static void uw_check_headers(uw_context ctx, size_t extra) {
adamc@1113	1253 ctx_buf_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1254 }
adamc@462	1255
adamc@462	1256 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1257 int len = strlen(s);
adamc@462	1258
adamc@462	1259 uw_check_headers(ctx, len + 1);
adamc@666	1260 strcpy(ctx->outHeaders.front, s);
adamc@666	1261 ctx->outHeaders.front += len;
adamc@562	1262 }
adamc@562	1263
adamc@1110	1264 void uw_clear_headers(uw_context ctx) {
adamc@1110	1265 buf_reset(&ctx->outHeaders);
adamc@1110	1266 }
adamc@1110	1267
adamc@562	1268 static void uw_check_script(uw_context ctx, size_t extra) {
adamc@1113	1269 ctx_buf_check(ctx, "script", &ctx->script, extra);
adamc@562	1270 }
adamc@562	1271
adamc@562	1272 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1273 int len = strlen(s);
adamc@562	1274
adamc@562	1275 uw_check_script(ctx, len + 1);
adamc@666	1276 strcpy(ctx->script.front, s);
adamc@666	1277 ctx->script.front += len;
adamc@562	1278 }
adamc@562	1279
adamc@645	1280 const char *uw_Basis_get_script(uw_context ctx, uw_unit u) {
adamc@916	1281 return "<sc>";
adamc@565	1282 }
adamc@565	1283
adamc@695	1284 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1285 if (s[0] == 0)
adamc@695	1286 return "";
adamc@695	1287 else {
adamc@695	1288 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1289 sprintf(r, " onload='%s'", s);
adamc@695	1290 return r;
adamc@695	1291 }
adamc@695	1292 }
adamc@695	1293
adamc@1042	1294 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1295 if (ctx->script_header[0] == 0)
adamc@1042	1296 return "";
adamc@1042	1297 else {
adamc@1042	1298 char *r = uw_malloc(ctx, 22 + strlen(s));
adamc@1042	1299 sprintf(r, " onunload='unload();%s'", s);
adamc@1042	1300 return r;
adamc@1042	1301 }
adamc@1042	1302 }
adamc@1042	1303
adamc@694	1304 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1305 if (ctx->client == NULL) {
adamc@736	1306 if (ctx->needs_sig) {
adamc@1094	1307 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1308 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1309 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1310 return r;
adamc@736	1311 }
adamc@736	1312 else
adamc@736	1313 return "";
adamc@736	1314 } else {
adamc@1094	1315 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1316 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1317 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adamc@736	1318 sprintf(r, "client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adamc@682	1319 ctx->client->id,
adamc@682	1320 ctx->client->pass,
adamc@1094	1321 ctx->app->url_prefix,
adamc@1094	1322 ctx->app->timeout,
adamc@736	1323 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1324 sig,
adamc@736	1325 ctx->needs_sig ? "\";" : "");
adamc@679	1326 return r;
adamc@668	1327 }
adamc@667	1328 }
adamc@667	1329
adamc@574	1330 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1331 char r, s2;
adamc@574	1332
adamc@574	1333 uw_check_heap(ctx, strlen(s) * 4 + 2);
adamc@574	1334
adamc@666	1335 r = s2 = ctx->heap.front;
adamc@574	1336 *s2++ = '"';
adamc@574	1337
adamc@574	1338 for (; *s; s++) {
adam@1286	1339 unsigned char c = *s;
adamc@574	1340
adamc@574	1341 switch (c) {
adamc@574	1342 case '"':
adamc@574	1343 strcpy(s2, "\\\"");
adamc@574	1344 s2 += 2;
adamc@574	1345 break;
adamc@1027	1346 case '\'':
adamc@1027	1347 strcpy(s2, "\\047");
adamc@1027	1348 s2 += 4;
adamc@1027	1349 break;
adamc@574	1350 case '\\':
adamc@574	1351 strcpy(s2, "\\\\");
adamc@574	1352 s2 += 2;
adamc@574	1353 break;
adamc@574	1354 default:
adam@1286	1355 if (isprint((int)c) \|\| c >= 128)
adamc@574	1356 *s2++ = c;
adamc@574	1357 else {
adamc@574	1358 sprintf(s2, "\\%3o", c);
adamc@574	1359 s2 += 4;
adamc@574	1360 }
adamc@574	1361 }
adamc@574	1362 }
adamc@574	1363
adamc@574	1364 strcpy(s2, "\"");
adamc@910	1365 ctx->heap.front = s2 + 2;
adamc@574	1366 return r;
adamc@574	1367 }
adamc@574	1368
adam@1286	1369 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1370 unsigned char c = c1;
adamc@1025	1371 char r, s2;
adamc@1025	1372
adamc@1025	1373 uw_check_heap(ctx, 6);
adamc@1025	1374
adamc@1025	1375 r = s2 = ctx->heap.front;
adamc@1025	1376 *s2++ = '"';
adamc@1025	1377
adamc@1025	1378 switch (c) {
adamc@1025	1379 case '"':
adamc@1025	1380 strcpy(s2, "\\\"");
adamc@1025	1381 s2 += 2;
adamc@1025	1382 break;
adamc@1027	1383 case '\'':
adamc@1027	1384 strcpy(s2, "\\047");
adamc@1027	1385 s2 += 4;
adamc@1027	1386 break;
adamc@1025	1387 case '\\':
adamc@1025	1388 strcpy(s2, "\\\\");
adamc@1025	1389 s2 += 2;
adamc@1025	1390 break;
adamc@1025	1391 default:
adam@1286	1392 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1393 *s2++ = c;
adamc@1025	1394 else {
adam@1286	1395 sprintf(s2, "\\%3o", (unsigned char)c);
adamc@1025	1396 s2 += 4;
adamc@1025	1397 }
adamc@1025	1398 }
adamc@1025	1399
adamc@1025	1400 strcpy(s2, "\"");
adamc@1025	1401 ctx->heap.front = s2 + 2;
adamc@1025	1402 return r;
adamc@1025	1403 }
adamc@1025	1404
adamc@574	1405 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1406 char r, s2;
adamc@574	1407
adamc@574	1408 uw_check_script(ctx, strlen(s) * 4 + 2);
adamc@574	1409
adamc@666	1410 r = s2 = ctx->script.front;
adamc@574	1411 *s2++ = '"';
adamc@574	1412
adamc@574	1413 for (; *s; s++) {
adam@1286	1414 unsigned char c = *s;
adamc@574	1415
adamc@574	1416 switch (c) {
adamc@577	1417 case '\'':
adamc@1027	1418 strcpy(s2, "\\");
adamc@574	1419 s2 += 2;
adamc@574	1420 break;
adamc@574	1421 case '\\':
adamc@574	1422 strcpy(s2, "\\\\");
adamc@574	1423 s2 += 2;
adamc@574	1424 break;
adamc@574	1425 default:
adam@1286	1426 if (isprint((int)c) \|\| c >= 128)
adamc@574	1427 *s2++ = c;
adamc@574	1428 else {
adamc@574	1429 sprintf(s2, "\\%3o", c);
adamc@574	1430 s2 += 4;
adamc@574	1431 }
adamc@574	1432 }
adamc@574	1433 }
adamc@574	1434
adamc@574	1435 strcpy(s2, "\"");
adamc@666	1436 ctx->script.front = s2 + 1;
adamc@574	1437 return r;
adamc@574	1438 }
adamc@574	1439
adamc@682	1440 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1441 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1442 return "null";
adamc@682	1443 else {
adamc@682	1444 int len;
adamc@682	1445 char *r;
adamc@682	1446
adamc@682	1447 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1448 r = ctx->heap.front;
adamc@682	1449 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1450 ctx->heap.front += len+1;
adamc@682	1451 return r;
adamc@682	1452 }
adamc@682	1453 }
adamc@682	1454
adamc@577	1455 uw_Basis_int uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1456 int len;
adamc@577	1457 size_t s_len = strlen(s);
adamc@562	1458
adamc@970	1459 uw_check_script(ctx, 18 + INTS_MAX + s_len);
adamc@970	1460 sprintf(ctx->script.front, "var s%d=sc(exec(%n", ctx->source_count, &len);
adamc@666	1461 ctx->script.front += len;
adamc@666	1462 strcpy(ctx->script.front, s);
adamc@666	1463 ctx->script.front += s_len;
adamc@970	1464 strcpy(ctx->script.front, "));");
adamc@972	1465 ctx->script.front += 3;
adamc@562	1466
adamc@565	1467 return ctx->source_count++;
adamc@117	1468 }
adamc@117	1469
adamc@577	1470 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_int n, uw_Basis_string s) {
adamc@577	1471 int len;
adamc@577	1472 size_t s_len = strlen(s);
adamc@577	1473
adamc@970	1474 uw_check_script(ctx, 12 + INTS_MAX + s_len);
adamc@970	1475 sprintf(ctx->script.front, "sv(s%d,exec(%n", (int)n, &len);
adamc@666	1476 ctx->script.front += len;
adamc@666	1477 strcpy(ctx->script.front, s);
adamc@666	1478 ctx->script.front += s_len;
adamc@970	1479 strcpy(ctx->script.front, "));");
adamc@972	1480 ctx->script.front += 3;
adamc@577	1481
adamc@577	1482 return uw_unit_v;
adamc@577	1483 }
adamc@577	1484
adamc@311	1485 static void uw_check(uw_context ctx, size_t extra) {
adamc@1113	1486 ctx_buf_check(ctx, "page", &ctx->page, extra);
adamc@117	1487 }
adamc@117	1488
adamc@311	1489 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1490 *(ctx->page.front)++ = c;
adamc@117	1491 }
adamc@117	1492
adamc@311	1493 void uw_writec(uw_context ctx, char c) {
adamc@311	1494 uw_check(ctx, 1);
adamc@311	1495 uw_writec_unsafe(ctx, c);
adamc@117	1496 }
adamc@117	1497
adamc@311	1498 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1499 int len = strlen(s);
adamc@666	1500 memcpy(ctx->page.front, s, len);
adamc@666	1501 ctx->page.front += len;
adamc@117	1502 }
adamc@117	1503
adamc@311	1504 void uw_write(uw_context ctx, const char* s) {
adamc@311	1505 uw_check(ctx, strlen(s) + 1);
adamc@311	1506 uw_write_unsafe(ctx, s);
adamc@666	1507 *ctx->page.front = 0;
adamc@102	1508 }
adamc@106	1509
adamc@311	1510 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1511 char *result;
adamc@136	1512 int len;
adamc@311	1513 uw_check_heap(ctx, INTS_MAX);
adamc@666	1514 result = ctx->heap.front;
adamc@276	1515 sprintf(result, "%lld%n", n, &len);
adamc@666	1516 ctx->heap.front += len+1;
adamc@136	1517 return result;
adamc@106	1518 }
adamc@106	1519
adamc@311	1520 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1521 char *result;
adamc@136	1522 int len;
adamc@311	1523 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1524 result = ctx->heap.front;
adamc@136	1525 sprintf(result, "%g%n", n, &len);
adamc@666	1526 ctx->heap.front += len+1;
adamc@136	1527 return result;
adamc@106	1528 }
adamc@106	1529
adamc@311	1530 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1531 int len = strlen(s);
adamc@136	1532 char result, p;
adamc@311	1533 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1534
adamc@666	1535 result = p = ctx->heap.front;
adamc@136	1536
adamc@136	1537 for (; *s; s++) {
adamc@1054	1538 unsigned char c = *s;
adamc@136	1539
adamc@136	1540 if (c == '"') {
adamc@136	1541 strcpy(p, """);
adamc@136	1542 p += 6;
adamc@136	1543 } else if (c == '&') {
adamc@136	1544 strcpy(p, "&");
adamc@136	1545 p += 5;
adamc@136	1546 }
adamc@1059	1547 else
adamc@136	1548 *p++ = c;
adamc@136	1549 }
adamc@136	1550
adamc@137	1551 *p++ = 0;
adamc@666	1552 ctx->heap.front = p;
adamc@136	1553 return result;
adamc@106	1554 }
adamc@106	1555
adamc@1011	1556 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1557 char result, p;
adamc@1011	1558 uw_check_heap(ctx, 7);
adamc@1011	1559
adamc@1011	1560 result = p = ctx->heap.front;
adamc@1011	1561
adamc@1011	1562 if (c == '"') {
adamc@1011	1563 strcpy(p, """);
adamc@1011	1564 p += 6;
adamc@1011	1565 } else if (c == '&') {
adamc@1011	1566 strcpy(p, "&");
adamc@1011	1567 p += 5;
adamc@1011	1568 }
adamc@1059	1569 else
adamc@1011	1570 *p++ = c;
adamc@1011	1571
adamc@1011	1572 *p++ = 0;
adamc@1011	1573 ctx->heap.front = p;
adamc@1011	1574 return result;
adamc@1011	1575 }
adamc@1011	1576
adamc@721	1577 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1578 return s;
adamc@721	1579 }
adamc@721	1580
adamc@311	1581 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1582 int len;
adamc@117	1583
adamc@666	1584 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1585 ctx->page.front += len;
adamc@106	1586 }
adamc@106	1587
adamc@428	1588 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1589 uw_check(ctx, INTS_MAX);
adamc@311	1590 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1591
adamc@428	1592 return uw_unit_v;
adamc@106	1593 }
adamc@106	1594
adamc@428	1595 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1596 int len;
adamc@117	1597
adamc@311	1598 uw_check(ctx, FLOATS_MAX);
adamc@666	1599 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1600 ctx->page.front += len;
adamc@428	1601
adamc@428	1602 return uw_unit_v;
adamc@117	1603 }
adamc@117	1604
adamc@428	1605 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1606 uw_check(ctx, strlen(s) * 6);
adamc@117	1607
adamc@106	1608 for (; *s; s++) {
adamc@1054	1609 unsigned char c = *s;
adamc@106	1610
adamc@106	1611 if (c == '"')
adamc@311	1612 uw_write_unsafe(ctx, """);
adamc@136	1613 else if (c == '&')
adamc@311	1614 uw_write_unsafe(ctx, "&");
adamc@1059	1615 else
adamc@311	1616 uw_writec_unsafe(ctx, c);
adamc@106	1617 }
adamc@428	1618
adamc@428	1619 return uw_unit_v;
adamc@106	1620 }
adamc@120	1621
adamc@1011	1622 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1623 uw_check(ctx, 6);
adamc@1011	1624
adamc@1011	1625 if (c == '"')
adamc@1011	1626 uw_write_unsafe(ctx, """);
adamc@1011	1627 else if (c == '&')
adamc@1011	1628 uw_write_unsafe(ctx, "&");
adamc@1059	1629 else
adamc@1011	1630 uw_writec_unsafe(ctx, c);
adamc@1011	1631
adamc@1011	1632 return uw_unit_v;
adamc@1011	1633 }
adamc@1011	1634
adamc@120	1635
adamc@311	1636 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1637 int len;
adamc@137	1638 char *r;
adamc@137	1639
adamc@311	1640 uw_check_heap(ctx, INTS_MAX);
adamc@666	1641 r = ctx->heap.front;
adamc@276	1642 sprintf(r, "%lld%n", n, &len);
adamc@666	1643 ctx->heap.front += len+1;
adamc@137	1644 return r;
adamc@120	1645 }
adamc@120	1646
adamc@682	1647 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1648 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1649 return "";
adamc@682	1650 else {
adamc@682	1651 int len;
adamc@682	1652 char *r;
adamc@679	1653
adamc@682	1654 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1655 r = ctx->heap.front;
adamc@682	1656 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1657 ctx->heap.front += len+1;
adamc@682	1658 return r;
adamc@682	1659 }
adamc@679	1660 }
adamc@679	1661
adamc@311	1662 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1663 int len;
adamc@137	1664 char *r;
adamc@137	1665
adamc@311	1666 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1667 r = ctx->heap.front;
adamc@137	1668 sprintf(r, "%g%n", n, &len);
adamc@666	1669 ctx->heap.front += len+1;
adamc@137	1670 return r;
adamc@120	1671 }
adamc@120	1672
adamc@311	1673 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1674 char r, p;
adamc@137	1675
adamc@925	1676 if (s[0] == '\0')
adamc@925	1677 return "_";
adamc@925	1678
adamc@925	1679 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1680
adamc@925	1681 r = p = ctx->heap.front;
adamc@925	1682 if (s[0] == '_')
adamc@925	1683 *p++ = '_';
adamc@925	1684
adamc@925	1685 for (; *s; s++) {
adamc@1087	1686 unsigned char c = *s;
adamc@137	1687
adamc@137	1688 if (c == ' ')
adamc@137	1689 *p++ = '+';
adamc@137	1690 else if (isalnum(c))
adamc@137	1691 *p++ = c;
adamc@137	1692 else {
adamc@1259	1693 sprintf(p, ".%02X", c);
adamc@137	1694 p += 3;
adamc@137	1695 }
adamc@137	1696 }
adamc@137	1697
adamc@137	1698 *p++ = 0;
adamc@666	1699 ctx->heap.front = p;
adamc@137	1700 return r;
adamc@120	1701 }
adamc@120	1702
adamc@311	1703 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1704 if (b == uw_Basis_False)
adamc@186	1705 return "0";
adamc@186	1706 else
adamc@186	1707 return "1";
adamc@186	1708 }
adamc@186	1709
adamc@311	1710 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1711 int len;
adamc@120	1712
adamc@666	1713 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1714 ctx->page.front += len;
adamc@120	1715 }
adamc@120	1716
adamc@428	1717 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1718 uw_check(ctx, INTS_MAX);
adamc@311	1719 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1720
adamc@428	1721 return uw_unit_v;
adamc@120	1722 }
adamc@120	1723
adamc@682	1724 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1725 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1726 int len;
adamc@682	1727
adamc@682	1728 uw_check(ctx, INTS_MAX + 1);
adamc@682	1729 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1730 ctx->page.front += len;
adamc@682	1731 }
adamc@682	1732
adamc@679	1733 return uw_unit_v;
adamc@679	1734 }
adamc@679	1735
adamc@428	1736 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1737 int len;
adamc@120	1738
adamc@311	1739 uw_check(ctx, FLOATS_MAX);
adamc@666	1740 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1741 ctx->page.front += len;
adamc@428	1742
adamc@428	1743 return uw_unit_v;
adamc@120	1744 }
adamc@120	1745
adamc@488	1746 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@488	1747 return uw_Basis_urlifyInt(ctx, t);
adamc@488	1748 }
adamc@488	1749
adamc@428	1750 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1751 if (s[0] == '\0') {
adamc@925	1752 uw_check(ctx, 1);
adamc@925	1753 uw_writec_unsafe(ctx, '_');
adamc@925	1754 return uw_unit_v;
adamc@925	1755 }
adamc@925	1756
adamc@925	1757 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1758
adamc@925	1759 if (s[0] == '_')
adamc@925	1760 uw_writec_unsafe(ctx, '_');
adamc@120	1761
adamc@120	1762 for (; *s; s++) {
adamc@1087	1763 unsigned char c = *s;
adamc@120	1764
adamc@120	1765 if (c == ' ')
adamc@311	1766 uw_writec_unsafe(ctx, '+');
adamc@120	1767 else if (isalnum(c))
adamc@311	1768 uw_writec_unsafe(ctx, c);
adamc@120	1769 else {
adamc@1259	1770 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1771 ctx->page.front += 3;
adamc@120	1772 }
adamc@120	1773 }
adamc@428	1774
adamc@428	1775 return uw_unit_v;
adamc@120	1776 }
adamc@120	1777
adamc@428	1778 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1779 if (b == uw_Basis_False)
adamc@311	1780 uw_writec(ctx, '0');
adamc@186	1781 else
adamc@311	1782 uw_writec(ctx, '1');
adamc@428	1783
adamc@428	1784 return uw_unit_v;
adamc@186	1785 }
adamc@186	1786
adamc@120	1787
adamc@311	1788 static char uw_unurlify_advance(char s) {
adamc@144	1789 char *new_s = strchr(s, '/');
adamc@120	1790
adamc@120	1791 if (new_s)
adamc@120	1792 *new_s++ = 0;
adamc@120	1793 else
adamc@144	1794 new_s = strchr(s, 0);
adamc@144	1795
adamc@144	1796 return new_s;
adamc@144	1797 }
adamc@144	1798
adamc@311	1799 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1800 char new_s = uw_unurlify_advance(s);
adamc@311	1801 uw_Basis_int r;
adamc@120	1802
adamc@276	1803 r = atoll(*s);
adamc@120	1804 *s = new_s;
adamc@120	1805 return r;
adamc@120	1806 }
adamc@120	1807
adamc@311	1808 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1809 char new_s = uw_unurlify_advance(s);
adamc@311	1810 uw_Basis_float r;
adamc@120	1811
adamc@120	1812 r = atof(*s);
adamc@120	1813 *s = new_s;
adamc@120	1814 return r;
adamc@120	1815 }
adamc@120	1816
adamc@488	1817 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adamc@488	1818 return uw_Basis_unurlifyInt(ctx, s);
adamc@488	1819 }
adamc@488	1820
adamc@1023	1821 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1822 char s1, s2 = s;
adamc@144	1823 int n;
adamc@136	1824
adamc@1023	1825 if (!fromClient) {
adamc@1023	1826 if (*s2 == '_')
adamc@1023	1827 ++s2;
adamc@1259	1828 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1829 s2 += 3;
adamc@1023	1830 }
adamc@925	1831
adamc@927	1832 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	1833 unsigned char c = *s2;
adamc@136	1834
adamc@136	1835 switch (c) {
adamc@136	1836 case '+':
adamc@136	1837 *s1 = ' ';
adamc@136	1838 break;
adamc@136	1839 case '%':
adamc@169	1840 if (s2[1] == 0)
adamc@311	1841 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1842 if (s2[2] == 0)
adamc@311	1843 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1844 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@311	1845 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@136	1846 *s1 = n;
adamc@136	1847 s2 += 2;
adamc@136	1848 break;
adamc@1259	1849 case '.':
adamc@1259	1850 if (!fromClient) {
adamc@1259	1851 if (s2[1] == 0)
adamc@1259	1852 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	1853 if (s2[2] == 0)
adamc@1259	1854 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	1855 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@1259	1856 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@1259	1857 *s1 = n;
adamc@1259	1858 s2 += 2;
adamc@1259	1859 break;
adamc@1259	1860 }
adamc@136	1861 default:
adamc@136	1862 *s1 = c;
adamc@136	1863 }
adamc@136	1864 }
adamc@136	1865 *s1++ = 0;
adamc@144	1866 return s1;
adamc@144	1867 }
adamc@144	1868
adamc@311	1869 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	1870 char new_s = uw_unurlify_advance(s);
adamc@311	1871 uw_Basis_bool r;
adamc@186	1872
adamc@186	1873 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	1874 r = uw_Basis_False;
adamc@186	1875 else
adamc@311	1876 r = uw_Basis_True;
adamc@186	1877
adamc@186	1878 *s = new_s;
adamc@186	1879 return r;
adamc@186	1880 }
adamc@186	1881
adamc@311	1882 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	1883 char new_s = uw_unurlify_advance(s);
adamc@1134	1884 char *r;
adamc@1134	1885 int len;
adamc@144	1886
adamc@200	1887 len = strlen(*s);
adamc@311	1888 uw_check_heap(ctx, len + 1);
adamc@144	1889
adamc@666	1890 r = ctx->heap.front;
adamc@1023	1891 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	1892 *s = new_s;
adamc@1023	1893 return r;
adamc@1023	1894 }
adamc@1023	1895
adamc@1109	1896 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	1897 s = uw_unurlify_advance(s);
adamc@1109	1898 return uw_unit_v;
adamc@1109	1899 }
adamc@1109	1900
adamc@1023	1901 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	1902 char new_s = uw_unurlify_advance(s);
adamc@1134	1903 char *r;
adamc@1134	1904 int len;
adamc@1023	1905
adamc@1023	1906 len = strlen(*s);
adamc@1023	1907 uw_check_heap(ctx, len + 1);
adamc@1023	1908
adamc@1023	1909 r = ctx->heap.front;
adamc@1023	1910 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	1911 *s = new_s;
adamc@136	1912 return r;
adamc@120	1913 }
adamc@135	1914
adamc@135	1915
adamc@311	1916 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	1917 int len;
adamc@286	1918 char *r;
adamc@286	1919
adamc@311	1920 uw_check_heap(ctx, INTS_MAX);
adamc@666	1921 r = ctx->heap.front;
adamc@286	1922 sprintf(r, "%lld%n", n, &len);
adamc@666	1923 ctx->heap.front += len+1;
adamc@286	1924 return r;
adamc@286	1925 }
adamc@286	1926
adamc@428	1927 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	1928 int len;
adamc@286	1929
adamc@311	1930 uw_check(ctx, INTS_MAX);
adamc@666	1931 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1932 ctx->page.front += len;
adamc@428	1933
adamc@428	1934 return uw_unit_v;
adamc@286	1935 }
adamc@286	1936
adamc@311	1937 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	1938 int len;
adamc@286	1939 char *r;
adamc@286	1940
adamc@311	1941 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1942 r = ctx->heap.front;
adamc@286	1943 sprintf(r, "%g%n", n, &len);
adamc@666	1944 ctx->heap.front += len+1;
adamc@286	1945 return r;
adamc@286	1946 }
adamc@286	1947
adamc@428	1948 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	1949 int len;
adamc@286	1950
adamc@311	1951 uw_check(ctx, FLOATS_MAX);
adamc@666	1952 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1953 ctx->page.front += len;
adamc@428	1954
adamc@428	1955 return uw_unit_v;
adamc@286	1956 }
adamc@286	1957
adamc@311	1958 char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1959 char r, s2;
adamc@137	1960
adamc@311	1961 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	1962
adamc@666	1963 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	1964 unsigned char c = *s;
adamc@137	1965
adamc@137	1966 switch (c) {
adamc@137	1967 case '<':
adamc@137	1968 strcpy(s2, "<");
adamc@137	1969 s2 += 4;
adamc@137	1970 break;
adamc@137	1971 case '&':
adamc@137	1972 strcpy(s2, "&");
adamc@137	1973 s2 += 5;
adamc@137	1974 break;
adamc@137	1975 default:
adamc@1059	1976 *s2++ = c;
adamc@137	1977 }
adamc@137	1978 }
adamc@137	1979
adamc@137	1980 *s2++ = 0;
adamc@666	1981 ctx->heap.front = s2;
adamc@137	1982 return r;
adamc@135	1983 }
adamc@135	1984
adamc@428	1985 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	1986 uw_check(ctx, strlen(s) * 6);
adamc@135	1987
adamc@135	1988 for (; *s; s++) {
adamc@1054	1989 unsigned char c = *s;
adamc@135	1990
adamc@135	1991 switch (c) {
adamc@135	1992 case '<':
adamc@311	1993 uw_write_unsafe(ctx, "<");
adamc@135	1994 break;
adamc@135	1995 case '&':
adamc@311	1996 uw_write_unsafe(ctx, "&");
adamc@135	1997 break;
adamc@135	1998 default:
adamc@1059	1999 uw_writec_unsafe(ctx, c);
adamc@135	2000 }
adamc@135	2001 }
adamc@428	2002
adamc@428	2003 return uw_unit_v;
adamc@135	2004 }
adamc@180	2005
adamc@311	2006 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2007 if (b == uw_Basis_False)
adamc@286	2008 return "False";
adamc@286	2009 else
adamc@286	2010 return "True";
adamc@286	2011 }
adamc@286	2012
adamc@428	2013 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2014 if (b == uw_Basis_False) {
adamc@311	2015 uw_check(ctx, 6);
adamc@666	2016 strcpy(ctx->page.front, "False");
adamc@666	2017 ctx->page.front += 5;
adamc@286	2018 } else {
adamc@311	2019 uw_check(ctx, 5);
adamc@666	2020 strcpy(ctx->page.front, "True");
adamc@666	2021 ctx->page.front += 4;
adamc@286	2022 }
adamc@428	2023
adamc@428	2024 return uw_unit_v;
adamc@286	2025 }
adamc@286	2026
adamc@436	2027 #define TIME_FMT "%x %X"
adamc@438	2028 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436	2029
adamc@436	2030 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436	2031 size_t len;
adamc@436	2032 char *r;
adamc@436	2033 struct tm stm;
adamc@436	2034
adamc@436	2035 if (localtime_r(&t, &stm)) {
adamc@436	2036 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2037 r = ctx->heap.front;
adamc@436	2038 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2039 ctx->heap.front += len+1;
adamc@436	2040 return r;
adamc@436	2041 } else
adamc@436	2042 return "<i>Invalid time</i>";
adamc@436	2043 }
adamc@436	2044
adamc@436	2045 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436	2046 size_t len;
adamc@436	2047 char *r;
adamc@436	2048 struct tm stm;
adamc@436	2049
adamc@436	2050 if (localtime_r(&t, &stm)) {
adamc@436	2051 uw_check(ctx, TIMES_MAX);
adamc@666	2052 r = ctx->page.front;
adamc@436	2053 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2054 ctx->page.front += len;
adamc@436	2055 } else {
adamc@436	2056 uw_check(ctx, 20);
adamc@666	2057 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666	2058 ctx->page.front += 19;
adamc@436	2059 }
adamc@436	2060
adamc@436	2061 return uw_unit_v;
adamc@436	2062 }
adamc@436	2063
adamc@821	2064 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	2065 if (n >= 0 && n < strlen(s))
adamc@821	2066 return s[n];
adamc@821	2067 else
adamc@821	2068 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adamc@821	2069 }
adamc@821	2070
adamc@821	2071 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	2072 if (n >= 0 && n < strlen(s))
adamc@821	2073 return &s[n];
adamc@821	2074 else
adamc@821	2075 uw_error(ctx, FATAL, "Out-of-bounds strsuffix");
adamc@821	2076 }
adamc@821	2077
adamc@828	2078 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2079 return strlen(s);
adamc@828	2080 }
adamc@828	2081
adamc@829	2082 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2083 return strchr(s, ch);
adamc@829	2084 }
adamc@829	2085
adamc@831	2086 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2087 return strcspn(s, chs);
adamc@831	2088 }
adamc@831	2089
adamc@829	2090 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2091 uw_Basis_string r = strchr(s, ch);
adamc@829	2092 if (r == NULL)
adamc@829	2093 return NULL;
adamc@829	2094 else {
adamc@829	2095 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2096 *nr = r - s;
adamc@829	2097 return nr;
adamc@829	2098 }
adamc@829	2099 }
adamc@829	2100
adamc@311	2101 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2102 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2103 char *s;
adamc@180	2104
adamc@311	2105 uw_check_heap(ctx, len);
adamc@180	2106
adamc@666	2107 s = ctx->heap.front;
adamc@180	2108
adamc@180	2109 strcpy(s, s1);
adamc@180	2110 strcat(s, s2);
adamc@666	2111 ctx->heap.front += len;
adamc@180	2112
adamc@180	2113 return s;
adamc@180	2114 }
adamc@278	2115
adamc@829	2116 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2117 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2118
adamc@829	2119 if (start < 0)
adamc@829	2120 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2121 if (len < 0)
adamc@829	2122 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2123 if (start + len > full_len)
adamc@829	2124 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2125
adamc@829	2126 if (start + len == full_len)
adamc@829	2127 return &s[start];
adamc@829	2128 else {
adamc@829	2129 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2130 memcpy(r, s+start, len);
adamc@829	2131 r[len] = 0;
adamc@829	2132 return r;
adamc@829	2133 }
adamc@829	2134
adamc@829	2135 }
adamc@829	2136
adamc@1023	2137 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2138 char *r;
adamc@1023	2139
adamc@1023	2140 uw_check_heap(ctx, 2);
adamc@1023	2141 r = ctx->heap.front;
adamc@1023	2142 r[0] = ch;
adamc@1023	2143 r[1] = 0;
adamc@1023	2144
adamc@1023	2145 ctx->heap.front += 2;
adamc@1023	2146
adamc@1023	2147 return r;
adamc@1023	2148 }
adamc@1023	2149
adamc@737	2150 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2151 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2152 char *s;
adamc@278	2153
adamc@311	2154 uw_check_heap(ctx, len);
adamc@278	2155
adamc@666	2156 s = ctx->heap.front;
adamc@278	2157
adamc@278	2158 strcpy(s, s1);
adamc@666	2159 ctx->heap.front += len;
adamc@278	2160
adamc@278	2161 return s;
adamc@278	2162 }
adamc@280	2163
adamc@737	2164 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2165 if (s1)
adamc@737	2166 return uw_strdup(ctx, s1);
adamc@493	2167 else
adamc@493	2168 return NULL;
adamc@493	2169 }
adamc@493	2170
adamc@742	2171 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2172 char *r = uw_malloc(ctx, len);
adamc@742	2173 memcpy(r, p, len);
adamc@742	2174 return r;
adamc@742	2175 }
adamc@280	2176
adamc@879	2177 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2178
adamc@311	2179 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2180 int len;
adamc@281	2181 char *r;
adamc@281	2182
adamc@311	2183 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2184 r = ctx->heap.front;
adamc@879	2185 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2186 ctx->heap.front += len+1;
adamc@281	2187 return r;
adamc@281	2188 }
adamc@281	2189
adamc@467	2190 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2191 if (n == NULL)
adamc@467	2192 return "NULL";
adamc@467	2193 else
adamc@467	2194 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2195 }
adamc@467	2196
adamc@879	2197 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879	2198
adamc@311	2199 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2200 int len;
adamc@281	2201 char *r;
adamc@281	2202
adamc@311	2203 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2204 r = ctx->heap.front;
adamc@879	2205 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2206 ctx->heap.front += len+1;
adamc@281	2207 return r;
adamc@281	2208 }
adamc@281	2209
adamc@467	2210 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2211 if (n == NULL)
adamc@467	2212 return "NULL";
adamc@467	2213 else
adamc@467	2214 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2215 }
adamc@467	2216
adamc@879	2217 int uw_Estrings = 1;
adamc@879	2218 char *uw_sqlsuffixString = "::text";
adamc@1011	2219 char *uw_sqlsuffixChar = "::char";
adamc@281	2220
adamc@311	2221 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2222 char r, s2;
adamc@280	2223
adamc@879	2224 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2225
adamc@666	2226 r = s2 = ctx->heap.front;
adamc@879	2227 if (uw_Estrings)
adamc@879	2228 *s2++ = 'E';
adamc@280	2229 *s2++ = '\'';
adamc@280	2230
adamc@280	2231 for (; *s; s++) {
adamc@280	2232 char c = *s;
adamc@280	2233
adamc@280	2234 switch (c) {
adamc@280	2235 case '\'':
adamc@885	2236 if (uw_Estrings)
adamc@885	2237 strcpy(s2, "\\'");
adamc@885	2238 else
adamc@885	2239 strcpy(s2, "''");
adamc@280	2240 s2 += 2;
adamc@280	2241 break;
adamc@280	2242 case '\\':
adamc@885	2243 if (uw_Estrings) {
adamc@885	2244 strcpy(s2, "\\\\");
adamc@885	2245 s2 += 2;
adamc@885	2246 } else
adamc@885	2247 *s2++ = '\\';
adamc@280	2248 break;
adamc@280	2249 default:
adamc@1150	2250 if (isprint((int)c))
adamc@280	2251 *s2++ = c;
adamc@879	2252 else if (uw_Estrings) {
adamc@737	2253 sprintf(s2, "\\%03o", c);
adamc@280	2254 s2 += 4;
adamc@280	2255 }
adamc@879	2256 else
adamc@879	2257 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280	2258 }
adamc@280	2259 }
adamc@280	2260
adamc@879	2261 *s2++ = '\'';
adamc@879	2262 strcpy(s2, uw_sqlsuffixString);
adamc@879	2263 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2264 return r;
adamc@280	2265 }
adamc@281	2266
adamc@1011	2267 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2268 char r, s2;
adamc@1011	2269
adamc@1011	2270 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2271
adamc@1011	2272 r = s2 = ctx->heap.front;
adamc@1011	2273 if (uw_Estrings)
adamc@1011	2274 *s2++ = 'E';
adamc@1011	2275 *s2++ = '\'';
adamc@1011	2276
adamc@1011	2277 switch (c) {
adamc@1011	2278 case '\'':
adamc@1011	2279 if (uw_Estrings)
adamc@1011	2280 strcpy(s2, "\\'");
adamc@1011	2281 else
adamc@1011	2282 strcpy(s2, "''");
adamc@1011	2283 s2 += 2;
adamc@1011	2284 break;
adamc@1011	2285 case '\\':
adamc@1011	2286 if (uw_Estrings) {
adamc@1011	2287 strcpy(s2, "\\\\");
adamc@1011	2288 s2 += 2;
adamc@1011	2289 } else
adamc@1011	2290 *s2++ = '\\';
adamc@1011	2291 break;
adamc@1011	2292 default:
adamc@1150	2293 if (isprint((int)c))
adamc@1011	2294 *s2++ = c;
adamc@1011	2295 else if (uw_Estrings) {
adamc@1011	2296 sprintf(s2, "\\%03o", c);
adamc@1011	2297 s2 += 4;
adamc@1011	2298 }
adamc@1011	2299 else
adamc@1011	2300 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2301 }
adamc@1011	2302
adamc@1011	2303 *s2++ = '\'';
adamc@1011	2304 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2305 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2306 return r;
adamc@1011	2307 }
adamc@1011	2308
adamc@879	2309 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2310
adamc@737	2311 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2312 char r, s2;
adamc@737	2313 size_t i;
adamc@737	2314
adamc@879	2315 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737	2316
adamc@737	2317 r = s2 = ctx->heap.front;
adamc@879	2318 if (uw_Estrings)
adamc@879	2319 *s2++ = 'E';
adamc@737	2320 *s2++ = '\'';
adamc@737	2321
adamc@737	2322 for (i = 0; i < b.size; ++i) {
adamc@737	2323 char c = b.data[i];
adamc@737	2324
adamc@737	2325 switch (c) {
adamc@737	2326 case '\'':
adamc@885	2327 if (uw_Estrings)
adamc@885	2328 strcpy(s2, "\\'");
adamc@885	2329 else
adamc@885	2330 strcpy(s2, "''");
adamc@737	2331 s2 += 2;
adamc@737	2332 break;
adamc@737	2333 case '\\':
adamc@885	2334 if (uw_Estrings) {
adamc@885	2335 strcpy(s2, "\\\\\\\\");
adamc@885	2336 s2 += 4;
adamc@885	2337 } else
adamc@885	2338 *s2++ = '\\';
adamc@737	2339 break;
adamc@737	2340 default:
adamc@1150	2341 if (isprint((int)c))
adamc@737	2342 *s2++ = c;
adamc@879	2343 else if (uw_Estrings) {
adamc@737	2344 sprintf(s2, "\\\\%03o", c);
adamc@737	2345 s2 += 5;
adamc@737	2346 }
adamc@879	2347 else
adamc@879	2348 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737	2349 }
adamc@737	2350 }
adamc@737	2351
adamc@879	2352 *s2++ = '\'';
adamc@879	2353 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2354 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2355 return r;
adamc@737	2356 }
adamc@737	2357
adamc@682	2358 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2359 int len;
adamc@682	2360 char *r;
adamc@682	2361 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2362
adamc@682	2363 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2364 r = ctx->heap.front;
adamc@879	2365 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2366 ctx->heap.front += len+1;
adamc@682	2367 return r;
adamc@682	2368 }
adamc@682	2369
adamc@682	2370 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2371 int len;
adamc@682	2372 char *r;
adamc@682	2373 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2374
adamc@682	2375 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2376 r = ctx->heap.front;
adamc@682	2377 sprintf(r, "%lld%n", combo, &len);
adamc@682	2378 ctx->heap.front += len+1;
adamc@682	2379 return r;
adamc@682	2380 }
adamc@682	2381
adamc@879	2382 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2383
adamc@682	2384 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2385 int len;
adamc@682	2386 char *r;
adamc@682	2387
adamc@682	2388 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2389 r = ctx->heap.front;
adamc@879	2390 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2391 ctx->heap.front += len+1;
adamc@682	2392 return r;
adamc@682	2393 }
adamc@682	2394
adamc@682	2395 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2396 int len;
adamc@682	2397 char *r;
adamc@682	2398
adamc@682	2399 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2400 r = ctx->heap.front;
adamc@682	2401 sprintf(r, "%u%n", cli, &len);
adamc@682	2402 ctx->heap.front += len+1;
adamc@682	2403 return r;
adamc@682	2404 }
adamc@682	2405
adamc@467	2406 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2407 if (s == NULL)
adamc@467	2408 return "NULL";
adamc@467	2409 else
adamc@467	2410 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2411 }
adamc@467	2412
adamc@311	2413 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2414 if (b == uw_Basis_False)
adamc@281	2415 return "FALSE";
adamc@281	2416 else
adamc@281	2417 return "TRUE";
adamc@281	2418 }
adamc@282	2419
adamc@467	2420 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2421 if (b == NULL)
adamc@467	2422 return "NULL";
adamc@467	2423 else
adamc@467	2424 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2425 }
adamc@467	2426
adamc@439	2427 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2428 size_t len;
adamc@682	2429 char r, s;
adamc@682	2430 struct tm stm;
adamc@682	2431
adamc@682	2432 if (localtime_r(&t, &stm)) {
adamc@682	2433 s = uw_malloc(ctx, TIMES_MAX);
adamc@682	2434 len = strftime(s, TIMES_MAX, TIME_FMT, &stm);
adamc@682	2435 r = uw_malloc(ctx, len + 14);
adamc@682	2436 sprintf(r, "'%s'::timestamp", s);
adamc@682	2437 return r;
adamc@682	2438 } else
adamc@682	2439 return "<Invalid time>";
adamc@682	2440 }
adamc@682	2441
adamc@682	2442 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2443 size_t len;
adamc@439	2444 char *r;
adamc@439	2445 struct tm stm;
adamc@439	2446
adamc@439	2447 if (localtime_r(&t, &stm)) {
adamc@439	2448 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2449 r = ctx->heap.front;
adamc@439	2450 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2451 ctx->heap.front += len+1;
adamc@439	2452 return r;
adamc@439	2453 } else
adamc@439	2454 return "<Invalid time>";
adamc@439	2455 }
adamc@439	2456
adamc@467	2457 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2458 if (t == NULL)
adamc@467	2459 return "NULL";
adamc@467	2460 else
adamc@467	2461 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2462 }
adamc@467	2463
adamc@311	2464 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2465 static uw_Basis_int true = 1;
adamc@311	2466 static uw_Basis_int false = 0;
adamc@282	2467
adamc@311	2468 if (b == uw_Basis_False)
adamc@282	2469 return (char *)&false;
adamc@282	2470 else
adamc@282	2471 return (char *)&true;
adamc@282	2472 }
adamc@284	2473
adamc@311	2474 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2475 int len;
adamc@284	2476 char *r;
adamc@284	2477
adamc@311	2478 uw_check_heap(ctx, INTS_MAX);
adamc@666	2479 r = ctx->heap.front;
adamc@284	2480 sprintf(r, "%lld%n", n, &len);
adamc@666	2481 ctx->heap.front += len+1;
adamc@284	2482 return r;
adamc@284	2483 }
adamc@285	2484
adamc@311	2485 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2486 int len;
adamc@285	2487 char *r;
adamc@285	2488
adamc@311	2489 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2490 r = ctx->heap.front;
adamc@285	2491 sprintf(r, "%g%n", n, &len);
adamc@666	2492 ctx->heap.front += len+1;
adamc@285	2493 return r;
adamc@285	2494 }
adamc@285	2495
adamc@821	2496 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2497 char *r = uw_malloc(ctx, 2);
adamc@821	2498 r[0] = ch;
adamc@821	2499 r[1] = 0;
adamc@821	2500 return r;
adamc@821	2501 }
adamc@821	2502
adamc@311	2503 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2504 if (b == uw_Basis_False)
adamc@285	2505 return "False";
adamc@285	2506 else
adamc@285	2507 return "True";
adamc@285	2508 }
adamc@288	2509
adamc@436	2510 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436	2511 size_t len;
adamc@436	2512 char *r;
adamc@436	2513 struct tm stm;
adamc@436	2514
adamc@436	2515 if (localtime_r(&t, &stm)) {
adamc@436	2516 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2517 r = ctx->heap.front;
adamc@436	2518 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2519 ctx->heap.front += len+1;
adamc@436	2520 return r;
adamc@436	2521 } else
adamc@436	2522 return "<Invalid time>";
adamc@436	2523 }
adamc@288	2524
adamc@311	2525 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2526 char *endptr;
adamc@311	2527 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2528
adamc@288	2529 if (s != '\0' && endptr == '\0') {
adamc@311	2530 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2531 *r = n;
adamc@288	2532 return r;
adamc@288	2533 } else
adamc@288	2534 return NULL;
adamc@288	2535 }
adamc@289	2536
adamc@311	2537 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2538 char *endptr;
adamc@311	2539 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2540
adamc@289	2541 if (s != '\0' && endptr == '\0') {
adamc@311	2542 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2543 *r = n;
adamc@289	2544 return r;
adamc@289	2545 } else
adamc@289	2546 return NULL;
adamc@289	2547 }
adamc@289	2548
adamc@821	2549 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2550 if (s[0] == 0) {
adamc@821	2551 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2552 r[0] = 0;
adamc@821	2553 return r;
adamc@821	2554 } else if (s[1] != 0)
adamc@821	2555 return NULL;
adamc@821	2556 else {
adamc@821	2557 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2558 r[0] = s[0];
adamc@821	2559 return r;
adamc@821	2560 }
adamc@821	2561 }
adamc@821	2562
adamc@311	2563 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2564 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2565 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2566
adamc@289	2567 if (!strcasecmp (s, "True"))
adamc@289	2568 return &true;
adamc@289	2569 else if (!strcasecmp (s, "False"))
adamc@289	2570 return &false;
adamc@289	2571 else
adamc@289	2572 return NULL;
adamc@289	2573 }
adamc@292	2574
adamc@436	2575 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2576 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2577 struct tm stm;
adamc@436	2578
adamc@439	2579 if (dot) {
adamc@439	2580 *dot = 0;
adamc@439	2581 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2582 *dot = '.';
adamc@439	2583 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2584 *r = mktime(&stm);
adamc@439	2585 return r;
adamc@439	2586 }
adamc@439	2587 else {
adamc@439	2588 *dot = '.';
adamc@439	2589 return NULL;
adamc@439	2590 }
adamc@436	2591 }
adamc@439	2592 else {
adamc@439	2593 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2594 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2595 *r = mktime(&stm);
adamc@439	2596 return r;
adamc@439	2597 }
adamc@439	2598 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2599 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2600 *r = mktime(&stm);
adamc@439	2601 return r;
adamc@439	2602 }
adamc@439	2603 else
adamc@439	2604 return NULL;
adamc@439	2605 }
adamc@436	2606 }
adamc@436	2607
adamc@311	2608 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2609 char *endptr;
adamc@311	2610 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2611
adamc@292	2612 if (s != '\0' && endptr == '\0')
adamc@292	2613 return n;
adamc@292	2614 else
adamc@311	2615 uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292	2616 }
adamc@293	2617
adamc@682	2618 #include <errno.h>
adamc@682	2619
adamc@678	2620 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2621 unsigned long long n;
adamc@682	2622
adamc@682	2623 if (sscanf(s, "%llu", &n) < 1)
adamc@682	2624 uw_error(ctx, FATAL, "Can't parse channel: %s", s);
adamc@682	2625 else {
adamc@682	2626 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2627 return ch;
adamc@682	2628 }
adamc@682	2629 }
adamc@682	2630
adamc@682	2631 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2632 char *endptr;
adamc@682	2633 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2634
adamc@678	2635 if (s != '\0' && endptr == '\0')
adamc@678	2636 return n;
adamc@678	2637 else
adamc@682	2638 uw_error(ctx, FATAL, "Can't parse client: %s", s);
adamc@678	2639 }
adamc@678	2640
adamc@311	2641 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2642 char *endptr;
adamc@311	2643 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2644
adamc@293	2645 if (s != '\0' && endptr == '\0')
adamc@293	2646 return n;
adamc@293	2647 else
adamc@311	2648 uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293	2649 }
adamc@293	2650
adamc@821	2651 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2652 if (s[0] == 0)
adamc@821	2653 return 0;
adamc@821	2654 else if (s[1] != 0)
adamc@821	2655 uw_error(ctx, FATAL, "Can't parse char: %s", s);
adamc@821	2656 else
adamc@821	2657 return s[0];
adamc@821	2658 }
adamc@821	2659
adamc@311	2660 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2661 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2662 return uw_Basis_True;
adamc@296	2663 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2664 return uw_Basis_False;
adamc@293	2665 else
adamc@311	2666 uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293	2667 }
adamc@436	2668
adamc@436	2669 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2670 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2671 struct tm stm = {};
adamc@436	2672
adamc@438	2673 if (dot) {
adamc@438	2674 *dot = 0;
adamc@438	2675 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2676 *dot = '.';
adamc@438	2677 return mktime(&stm);
adamc@438	2678 }
adamc@438	2679 else {
adamc@438	2680 *dot = '.';
adamc@438	2681 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2682 }
adamc@438	2683 }
adamc@438	2684 else {
adamc@439	2685 if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439	2686 return mktime(&stm);
adamc@439	2687 else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438	2688 return mktime(&stm);
adamc@438	2689 else
adamc@438	2690 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2691 }
adamc@436	2692 }
adamc@457	2693
adamc@939	2694 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adamc@939	2695 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@939	2696 struct tm stm = {};
adamc@939	2697
adamc@939	2698 if (dot) {
adamc@939	2699 *dot = 0;
adamc@939	2700 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@939	2701 *dot = '.';
adamc@939	2702 return mktime(&stm);
adamc@939	2703 }
adamc@939	2704 else {
adamc@939	2705 *dot = '.';
adamc@939	2706 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2707 }
adamc@939	2708 }
adamc@939	2709 else {
adamc@939	2710 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@939	2711 return mktime(&stm);
adamc@939	2712 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@939	2713 return mktime(&stm);
adamc@939	2714 } else
adamc@939	2715 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2716 }
adamc@939	2717 }
adamc@939	2718
adamc@742	2719 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	2720 char *r = ctx->heap.front;
adamc@742	2721 uw_Basis_blob b = {len, r};
adamc@742	2722
adamc@742	2723 uw_check_heap(ctx, len);
adamc@742	2724
adamc@742	2725 while (*s) {
adamc@742	2726 if (s[0] == '\\') {
adamc@742	2727 if (s[1] == '\\') {
adamc@742	2728 *r++ = '\\';
adamc@742	2729 s += 2;
adamc@1153	2730 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adamc@742	2731 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	2732 s += 4;
adamc@742	2733 }
adamc@742	2734 else {
adamc@742	2735 *r++ = '\\';
adamc@742	2736 ++s;
adamc@742	2737 }
adamc@742	2738 } else {
adamc@742	2739 *r++ = s[0];
adamc@742	2740 ++s;
adamc@742	2741 }
adamc@742	2742 }
adamc@742	2743
adamc@742	2744 b.size = r - ctx->heap.front;
adamc@742	2745 ctx->heap.front = r;
adamc@742	2746 return b;
adamc@742	2747 }
adamc@742	2748
adamc@1052	2749 #define THE_PAST "expires=Mon, 01-01-1970 00:00:00 GMT"
adamc@1052	2750
adamc@463	2751 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	2752 int len = strlen(c);
adamc@854	2753 char *p = ctx->outHeaders.start;
adamc@474	2754
adamc@1134	2755 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	2756 char *p2;
adamc@474	2757 p += 13;
adamc@474	2758 p2 = strchr(p, '=');
adamc@474	2759
adamc@474	2760 if (p2) {
adamc@474	2761 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	2762
adamc@474	2763 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	2764 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	2765 return NULL;
adamc@1052	2766 else {
adamc@1052	2767 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	2768 memcpy(ret, p2+1, sz);
adamc@1052	2769 ret[sz] = 0;
adamc@1052	2770 return ret;
adamc@1052	2771 }
adamc@474	2772 }
adamc@474	2773 }
adamc@474	2774 }
adamc@463	2775
adamc@1134	2776 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	2777 char *p2;
adamc@1051	2778
adamc@854	2779 while (1) {
adamc@1051	2780 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	2781 if ((p2 = strchr(p, ';'))) {
adamc@1051	2782 size_t n = p2 - (p + len);
adamc@1051	2783 char *r = uw_malloc(ctx, n);
adamc@1051	2784 memcpy(r, p + 1 + len, n-1);
adamc@1051	2785 r[n-1] = 0;
adamc@1051	2786 return r;
adamc@1051	2787 } else
adamc@1051	2788 return p + 1 + len;
adamc@1134	2789 } else if ((p = strchr(p, ';')))
adamc@854	2790 p += 2;
adamc@463	2791 else
adamc@463	2792 return NULL;
adamc@463	2793 }
adamc@463	2794 }
adamc@792	2795
adamc@792	2796 return NULL;
adamc@457	2797 }
adamc@462	2798
adamc@1050	2799 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	2800 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	2801 uw_write_header(ctx, c);
adamc@462	2802 uw_write_header(ctx, "=");
adamc@462	2803 uw_write_header(ctx, v);
adamc@466	2804 uw_write_header(ctx, "; path=");
adamc@466	2805 uw_write_header(ctx, prefix);
adamc@1050	2806 if (expires) {
adamc@1050	2807 char formatted[30];
adamc@1050	2808 struct tm tm;
adamc@1050	2809
adamc@1050	2810 gmtime_r(expires, &tm);
adamc@1050	2811
adamc@1050	2812 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	2813
adamc@1050	2814 uw_write_header(ctx, "; expires=");
adamc@1050	2815 uw_write_header(ctx, formatted);
adamc@1050	2816 }
adamc@1050	2817 if (secure)
adamc@1050	2818 uw_write_header(ctx, "; secure");
adamc@462	2819 uw_write_header(ctx, "\r\n");
adamc@462	2820
adamc@462	2821 return uw_unit_v;
adamc@462	2822 }
adamc@667	2823
adamc@1050	2824 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	2825 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	2826 uw_write_header(ctx, c);
adamc@1050	2827 uw_write_header(ctx, "=; path=");
adamc@1050	2828 uw_write_header(ctx, prefix);
adamc@1052	2829 uw_write_header(ctx, "; " THE_PAST "\r\n");
adamc@1050	2830
adamc@1050	2831 return uw_unit_v;
adamc@1050	2832 }
adamc@1050	2833
adamc@1113	2834 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	2835
adamc@682	2836 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	2837 unsigned i;
adamc@682	2838 delta *d;
adamc@671	2839
adamc@682	2840 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	2841 if (ctx->deltas[i].client == client)
adamc@682	2842 return &ctx->deltas[i];
adamc@671	2843
adamc@682	2844 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	2845 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	2846 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	2847
adamc@682	2848 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adamc@1113	2849 buf_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	2850 }
adamc@671	2851
adamc@682	2852 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	2853 d->client = client;
adamc@682	2854 buf_reset(&d->msgs);
adamc@682	2855 return d;
adamc@671	2856 }
adamc@671	2857
adamc@668	2858 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	2859 if (ctx->client == NULL)
adamc@682	2860 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	2861
adamc@682	2862 return new_channel(ctx->client);
adamc@668	2863 }
adamc@668	2864
adamc@668	2865 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	2866 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	2867 size_t len;
adamc@682	2868 int preLen;
adamc@682	2869 char pre[INTS_MAX + 2];
adamc@668	2870
adamc@682	2871 len = strlen(msg);
adamc@682	2872
adamc@682	2873 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	2874
adamc@1113	2875 ctx_buf_append(ctx, "messages", &d->msgs, pre, preLen);
adamc@1113	2876 ctx_buf_append(ctx, "messages", &d->msgs, msg, len);
adamc@1113	2877 ctx_buf_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	2878
adamc@671	2879 return uw_unit_v;
adamc@668	2880 }
adamc@671	2881
adamc@1131	2882 int uw_rollback(uw_context ctx) {
adamc@1131	2883 int i;
adamc@1131	2884 cleanup *cl;
adamc@1131	2885
adamc@1131	2886 if (ctx->client)
adamc@1131	2887 release_client(ctx->client);
adamc@1131	2888
adamc@1131	2889 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	2890 cl->func(cl->arg);
adamc@1131	2891
adamc@1131	2892 ctx->cleanup_front = ctx->cleanup;
adamc@1131	2893
adamc@1131	2894 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	2895 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	2896 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	2897
adamc@1131	2898 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	2899 if (ctx->transactionals[i].free)
adamc@1131	2900 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@1131	2901
adamc@1144	2902 return ctx->app ? ctx->app->db_rollback(ctx) : 0;
adamc@1131	2903 }
adamc@1131	2904
adamc@671	2905 void uw_commit(uw_context ctx) {
adamc@1104	2906 int i;
adamc@1104	2907
adamc@1131	2908 if (uw_has_error(ctx)) {
adamc@1131	2909 uw_rollback(ctx);
adamc@1131	2910 return;
adamc@1131	2911 }
adamc@1131	2912
adamc@1104	2913 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	2914 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	2915 if (ctx->transactionals[i].commit) {
adamc@1083	2916 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	2917 if (uw_has_error(ctx)) {
adamc@1131	2918 uw_rollback(ctx);
adamc@1131	2919 return;
adamc@1131	2920 }
adamc@1131	2921 }
adamc@771	2922
adamc@1104	2923 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	2924 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	2925 if (ctx->transactionals[i].commit) {
adamc@1083	2926 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	2927 if (uw_has_error(ctx)) {
adamc@1131	2928 uw_rollback(ctx);
adamc@1131	2929 return;
adamc@1131	2930 }
adamc@1131	2931 }
adamc@1131	2932
adamc@1131	2933 if (ctx->app->db_commit(ctx)) {
adamc@1131	2934 uw_set_error_message(ctx, "Error running SQL COMMIT");
adamc@1131	2935 return;
adamc@1131	2936 }
adamc@682	2937
adamc@682	2938 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	2939 delta *d = &ctx->deltas[i];
adamc@682	2940 client *c = find_client(d->client);
adamc@682	2941
adamc@682	2942 assert (c != NULL && c->mode == USED);
adamc@682	2943
adamc@685	2944 client_send(c, &d->msgs);
adamc@682	2945 }
adamc@682	2946
adamc@682	2947 if (ctx->client)
adamc@685	2948 release_client(ctx->client);
adamc@771	2949
adamc@1104	2950 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	2951 if (ctx->transactionals[i].free)
adamc@1083	2952 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@916	2953
adamc@916	2954 // Splice script data into appropriate part of page
adamc@1065	2955 if (ctx->returning_indirectly \|\| ctx->script_header[0] == 0) {
adamc@995	2956 char *start = strstr(ctx->page.start, "<sc>");
adamc@995	2957 if (start) {
adamc@995	2958 memmove(start, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 4);
adamc@995	2959 ctx->page.front -= 4;
adamc@995	2960 }
adamc@995	2961 } else if (buf_used(&ctx->script) == 0) {
adamc@916	2962 size_t len = strlen(ctx->script_header);
adamc@916	2963 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2964 if (start) {
adamc@1113	2965 ctx_buf_check(ctx, "page", &ctx->page, buf_used(&ctx->page) - 4 + len);
adamc@917	2966 start = strstr(ctx->page.start, "<sc>");
adamc@916	2967 memmove(start + len, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2968 ctx->page.front += len - 4;
adamc@916	2969 memcpy(start, ctx->script_header, len);
adamc@916	2970 }
adamc@916	2971 } else {
adamc@916	2972 size_t lenH = strlen(ctx->script_header), len = buf_used(&ctx->script);
adamc@916	2973 size_t lenP = lenH + 40 + len;
adamc@916	2974 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2975 if (start) {
adamc@1113	2976 ctx_buf_check(ctx, "page", &ctx->page, buf_used(&ctx->page) - 4 + lenP);
adamc@917	2977 start = strstr(ctx->page.start, "<sc>");
adamc@916	2978 memmove(start + lenP, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2979 ctx->page.front += lenP - 4;
adamc@916	2980 memcpy(start, ctx->script_header, lenH);
adamc@916	2981 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916	2982 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916	2983 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916	2984 }
adamc@916	2985 }
adamc@671	2986 }
adamc@671	2987
adamc@683	2988
adamc@1113	2989 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	2990
adamc@771	2991 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adamc@771	2992 uw_callback free) {
adamc@771	2993 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	2994 if (ctx->used_transactionals+1 > uw_transactionals_max)
adamc@1113	2995 uw_error(ctx, FATAL, "Exceeded limit on number of transactionals");
adamc@1084	2996 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	2997 ++ctx->n_transactionals;
adamc@771	2998 }
adamc@771	2999
adamc@771	3000 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3001 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3002 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3003 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	3004 }
adamc@771	3005
adamc@683	3006
adamc@683	3007 // "Garbage collection"
adamc@683	3008
adamc@1121	3009 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3010 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3011
adamc@1121	3012 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3013 int r = setjmp(ctx->jmp_buf);
adamc@683	3014
adamc@1121	3015 if (r == 0)
adamc@1121	3016 uw_do_expunge(ctx, cli, data);
adamc@1121	3017 else
adamc@1121	3018 ctx->app->db_rollback(ctx);
adamc@1121	3019
adamc@1121	3020 uw_post_expunge(ctx, data);
adamc@683	3021
adamc@683	3022 return r;
adamc@683	3023 }
adamc@683	3024
adamc@683	3025 void uw_prune_clients(uw_context ctx) {
adamc@683	3026 client c, next, *prev = NULL;
adamc@683	3027 time_t cutoff;
adamc@683	3028
adamc@1094	3029 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3030
adamc@683	3031 pthread_mutex_lock(&clients_mutex);
adamc@683	3032
adamc@683	3033 for (c = clients_used; c; c = next) {
adamc@683	3034 next = c->next;
adamc@683	3035 pthread_mutex_lock(&c->lock);
adamc@685	3036 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3037 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3038 if (prev)
adamc@683	3039 prev->next = next;
adamc@683	3040 else
adamc@683	3041 clients_used = next;
adamc@684	3042 uw_reset(ctx);
adamc@683	3043 while (fk == UNLIMITED_RETRY) {
adamc@1121	3044 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3045 if (fk == UNLIMITED_RETRY)
adamc@684	3046 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3047 }
adamc@684	3048 if (fk == SUCCESS)
adamc@684	3049 free_client(c);
adamc@1121	3050 else
adamc@856	3051 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3052 }
adamc@683	3053 else
adamc@683	3054 prev = c;
adamc@683	3055 pthread_mutex_unlock(&c->lock);
adamc@683	3056 }
adamc@683	3057
adamc@683	3058 pthread_mutex_unlock(&clients_mutex);
adamc@683	3059 }
adamc@687	3060
adamc@687	3061 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3062 int r = setjmp(ctx->jmp_buf);
adamc@687	3063
adamc@687	3064 if (r == 0) {
adamc@1094	3065 if (ctx->app->db_begin(ctx))
adamc@687	3066 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@1094	3067 ctx->app->initializer(ctx);
adamc@1094	3068 if (ctx->app->db_commit(ctx))
adamc@687	3069 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3070 }
adamc@687	3071
adamc@687	3072 return r;
adamc@687	3073 }
adamc@717	3074
adamc@1065	3075 static int url_bad(uw_Basis_string s) {
adamc@1065	3076 for (; *s; ++s)
adamc@1153	3077 if (!isgraph((int)*s))
adamc@1065	3078 return 1;
adamc@1065	3079
adamc@1065	3080 return 0;
adamc@1065	3081 }
adamc@1065	3082
adamc@717	3083 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3084 if (url_bad(s))
adamc@1065	3085 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3086 if (ctx->app->check_url(s))
adamc@770	3087 return s;
adamc@770	3088 else
adamc@770	3089 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3090 }
adamc@734	3091
adamc@770	3092 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3093 if (url_bad(s))
adamc@1065	3094 return NULL;
adamc@1094	3095 if (ctx->app->check_url(s))
adamc@770	3096 return s;
adamc@770	3097 else
adamc@770	3098 return NULL;
adamc@770	3099 }
adamc@770	3100
adamc@770	3101 int mime_format(const char *s) {
adamc@770	3102 for (; *s; ++s)
adamc@1153	3103 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.')
adamc@770	3104 return 0;
adamc@770	3105
adamc@770	3106 return 1;
adamc@770	3107 }
adamc@770	3108
adamc@741	3109 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3110 if (!mime_format(s))
adamc@770	3111 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3112
adamc@1094	3113 if (ctx->app->check_mime(s))
adamc@770	3114 return s;
adamc@770	3115 else
adamc@770	3116 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3117 }
adamc@770	3118
adamc@770	3119 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3120 if (!mime_format(s))
adamc@770	3121 return NULL;
adamc@770	3122
adamc@1094	3123 if (ctx->app->check_mime(s))
adamc@770	3124 return s;
adamc@770	3125 else
adamc@770	3126 return NULL;
adamc@741	3127 }
adamc@741	3128
adamc@734	3129 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3130 return s ? s : "";
adamc@734	3131 }
adamc@734	3132
adamc@734	3133 extern int uw_hash_blocksize;
adamc@734	3134
adamc@734	3135 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3136 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3137 int i;
adamc@734	3138
adamc@734	3139 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3140 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3141
adamc@734	3142 return r;
adamc@734	3143 }
adamc@734	3144
adamc@734	3145 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@1094	3146 return ctx->app->cookie_sig(ctx);
adamc@734	3147 }
adamc@737	3148
adamc@737	3149 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3150 return f.name;
adamc@737	3151 }
adamc@737	3152
adamc@740	3153 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3154 return f.type;
adamc@740	3155 }
adamc@740	3156
adamc@745	3157 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3158 return b.size;
adamc@745	3159 }
adamc@745	3160
adamc@1119	3161 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3162 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3163
adamc@1119	3164 return b;
adamc@1119	3165 }
adamc@1119	3166
adamc@737	3167 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3168 return f.data;
adamc@737	3169 }
adamc@741	3170
adamc@741	3171 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3172 cleanup *cl;
adamc@741	3173 int len;
adamc@741	3174
adamc@1065	3175 ctx->returning_indirectly = 1;
adamc@741	3176 buf_reset(&ctx->outHeaders);
adamc@741	3177 buf_reset(&ctx->page);
adamc@741	3178
adamc@856	3179 uw_write_header(ctx, on_success);
adamc@856	3180 uw_write_header(ctx, "Content-Type: ");
adamc@741	3181 uw_write_header(ctx, mimeType);
adamc@741	3182 uw_write_header(ctx, "\r\nContent-Length: ");
adamc@1113	3183 ctx_buf_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3184 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3185 ctx->outHeaders.front += len;
adamc@1066	3186 uw_write_header(ctx, "\r\n");
adamc@741	3187
adamc@1113	3188 ctx_buf_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3189
adamc@741	3190 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3191 cl->func(cl->arg);
adamc@741	3192
adamc@741	3193 ctx->cleanup_front = ctx->cleanup;
adamc@741	3194
adamc@1065	3195 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3196 }
adamc@1065	3197
adamc@1065	3198 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3199 cleanup *cl;
adamc@1066	3200 char *s;
adamc@1065	3201
adamc@1065	3202 ctx->returning_indirectly = 1;
adamc@1066	3203 buf_reset(&ctx->page);
adamc@1113	3204 ctx_buf_check(ctx, "page", &ctx->page, buf_used(&ctx->outHeaders)+1);
adamc@1066	3205 memcpy(ctx->page.start, ctx->outHeaders.start, buf_used(&ctx->outHeaders));
adamc@1066	3206 ctx->page.start[buf_used(&ctx->outHeaders)] = 0;
adamc@1065	3207 buf_reset(&ctx->outHeaders);
adamc@1065	3208
adamc@1065	3209 uw_write_header(ctx, on_redirect);
adamc@1066	3210
adamc@1066	3211 s = strchr(ctx->page.start, '\n');
adamc@1066	3212 if (s) {
adamc@1066	3213 char *s2;
adamc@1134	3214 for (++s; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3215 *s2 = 0;
adamc@1066	3216 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3217 uw_write_header(ctx, s);
adamc@1066	3218 uw_write_header(ctx, "\n");
adamc@1066	3219 }
adamc@1066	3220 }
adamc@1066	3221 }
adamc@1066	3222
adamc@1065	3223 uw_write_header(ctx, "Location: ");
adamc@1065	3224 uw_write_header(ctx, url);
adamc@1065	3225 uw_write_header(ctx, "\r\n\r\n");
adamc@1065	3226
adamc@1065	3227 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3228 cl->func(cl->arg);
adamc@1065	3229
adamc@1065	3230 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3231
adamc@1065	3232 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3233 }
adamc@874	3234
adamc@874	3235 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adamc@874	3236 uw_Basis_string r = uw_malloc(ctx, strlen(s) + 1);
adamc@874	3237
adamc@874	3238 for (; *s; ++s) {
adamc@874	3239 if (s[0] == '\'') {
adamc@874	3240 *r++ = '\'';
adamc@874	3241 for (++s; *s; ++s) {
adamc@874	3242 if (s[0] == '\'') {
adamc@874	3243 *r++ = '\'';
adamc@874	3244 break;
adamc@874	3245 } else if (s[0] == '\\') {
adamc@874	3246 if (s[1] == '\\') {
adamc@874	3247 *r++ = '\\';
adamc@874	3248 *r++ = '\\';
adamc@874	3249 ++s;
adamc@874	3250 } else if (s[1] == '\'') {
adamc@874	3251 *r++ = '\\';
adamc@874	3252 *r++ = '\'';
adamc@874	3253 ++s;
adamc@874	3254 } else
adamc@874	3255 *r++ = '\'';
adamc@874	3256 } else
adamc@874	3257 *r++ = s[0];
adamc@874	3258 }
adamc@874	3259 if (*s == 0) break;
adamc@874	3260 } else if (s[0] == 'T' && s[1] == '.')
adamc@874	3261 ++s;
adamc@874	3262 else
adamc@874	3263 *r++ = s[0];
adamc@874	3264 }
adamc@874	3265
adamc@874	3266 return r;
adamc@874	3267 }
adamc@874	3268
adamc@922	3269 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3270 va_list ap;
adamc@922	3271 size_t len = 1;
adamc@922	3272 char s, r, *s2;
adamc@922	3273
adamc@922	3274 va_start(ap, ctx);
adamc@922	3275 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3276 len += strlen(s);
adamc@922	3277 va_end(ap);
adamc@922	3278
adamc@922	3279 r = uw_malloc(ctx, len);
adamc@922	3280 va_start(ap, ctx);
adamc@922	3281 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3282 while (*s)
adamc@922	3283 s2++ = s++;
adamc@922	3284 va_end(ap);
adamc@922	3285 *s2 = 0;
adamc@922	3286
adamc@922	3287 return r;
adamc@922	3288 }
adamc@1006	3289
adamc@1050	3290 const uw_Basis_time minTime = 0;
adamc@1050	3291
adamc@1006	3292 uw_Basis_time uw_Basis_now(uw_context ctx) {
adamc@1006	3293 return time(NULL);
adamc@1006	3294 }
adamc@1061	3295
adamc@1138	3296 uw_Basis_time uw_Basis_minusSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adamc@1138	3297 return tm - n;
adamc@1138	3298 }
adamc@1138	3299
adamc@1061	3300 void uw_get_global(uw_context ctx, char name) {
adamc@1061	3301 int i;
adamc@1061	3302
adamc@1061	3303 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3304 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	3305 return ctx->globals[i].data;
adamc@1061	3306
adamc@1061	3307 return NULL;
adamc@1061	3308 }
adamc@1061	3309
adamc@1113	3310 size_t uw_globals_max = SIZE_MAX;
adamc@1113	3311
adamc@1061	3312 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	3313 int i;
adamc@1061	3314
adamc@1061	3315 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3316 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	3317 if (ctx->globals[i].free)
adamc@1061	3318 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	3319 ctx->globals[i].data = data;
adamc@1061	3320 ctx->globals[i].free = free;
adamc@1061	3321 return;
adamc@1061	3322 }
adamc@1089	3323
adamc@1113	3324 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	3325 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	3326
adamc@1061	3327 ++ctx->n_globals;
adamc@1061	3328 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	3329 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	3330 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	3331 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	3332 }
adamc@1061	3333
adamc@1061	3334 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	3335 return !!isalnum((int)c);
adamc@1061	3336 }
adamc@1061	3337
adamc@1061	3338 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	3339 return !!isalpha((int)c);
adamc@1061	3340 }
adamc@1061	3341
adamc@1061	3342 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	3343 return !!isblank((int)c);
adamc@1061	3344 }
adamc@1061	3345
adamc@1061	3346 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	3347 return !!iscntrl((int)c);
adamc@1061	3348 }
adamc@1061	3349
adamc@1061	3350 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3351 return !!isdigit((int)c);
adamc@1061	3352 }
adamc@1061	3353
adamc@1061	3354 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	3355 return !!isgraph((int)c);
adamc@1061	3356 }
adamc@1061	3357
adamc@1061	3358 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3359 return !!islower((int)c);
adamc@1061	3360 }
adamc@1061	3361
adamc@1061	3362 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	3363 return !!isprint((int)c);
adamc@1061	3364 }
adamc@1061	3365
adamc@1061	3366 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	3367 return !!ispunct((int)c);
adamc@1061	3368 }
adamc@1061	3369
adamc@1061	3370 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	3371 return !!isspace((int)c);
adamc@1061	3372 }
adamc@1063	3373
adamc@1061	3374 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3375 return !!isupper((int)c);
adamc@1061	3376 }
adamc@1061	3377
adamc@1061	3378 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3379 return !!isxdigit((int)c);
adamc@1061	3380 }
adamc@1061	3381
adamc@1061	3382 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3383 return tolower((int)c);
adamc@1061	3384 }
adamc@1061	3385
adamc@1061	3386 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3387 return toupper((int)c);
adamc@1061	3388 }
adamc@1066	3389
adamc@1128	3390 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	3391 return (unsigned char)c;
adamc@1128	3392 }
adamc@1128	3393
adamc@1128	3394 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	3395 return n;
adamc@1128	3396 }
adamc@1128	3397
adamc@1066	3398 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	3399 return ctx->current_url;
adamc@1066	3400 }
adamc@1066	3401
adamc@1066	3402 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	3403 ctx->current_url = s;
adamc@1066	3404 }
adamc@1114	3405
adamc@1114	3406 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	3407 ctx->deadline = n;
adamc@1114	3408 }
adamc@1114	3409
adamc@1114	3410 void uw_check_deadline(uw_context ctx) {
adamc@1114	3411 if (uw_time > ctx->deadline)
adamc@1114	3412 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	3413 }
adamc@1115	3414
adamc@1115	3415 size_t uw_database_max = SIZE_MAX;
adamc@1120	3416
adamc@1120	3417 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
adamc@1120	3418 fprintf(stderr, "%s\n", s);
adamc@1120	3419
adamc@1120	3420 return uw_unit_v;
adamc@1120	3421 }
adamc@1250	3422
adamc@1250	3423 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adamc@1250	3424 uw_Basis_int n = abs(rand());
adamc@1250	3425 return n;
adamc@1250	3426 }

Mercurial > urweb

annotate src/c/urweb.c @ 1286:829da30fb808