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

annotate src/c/urweb.c @ 1278:cd8d2c73ccf4

Catch a missed ReduceLocal of field projection annotations

author	Adam Chlipala <adamc@hcoop.net>
date	Sun, 13 Jun 2010 14:13:06 -0400
parents	236dc296c32d
children	829da30fb808

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++) {
adamc@574	1339 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:
adamc@1147	1355 if (isprint((int)c))
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
adamc@1025	1369 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1025	1370 char r, s2;
adamc@1025	1371
adamc@1025	1372 uw_check_heap(ctx, 6);
adamc@1025	1373
adamc@1025	1374 r = s2 = ctx->heap.front;
adamc@1025	1375 *s2++ = '"';
adamc@1025	1376
adamc@1025	1377 switch (c) {
adamc@1025	1378 case '"':
adamc@1025	1379 strcpy(s2, "\\\"");
adamc@1025	1380 s2 += 2;
adamc@1025	1381 break;
adamc@1027	1382 case '\'':
adamc@1027	1383 strcpy(s2, "\\047");
adamc@1027	1384 s2 += 4;
adamc@1027	1385 break;
adamc@1025	1386 case '\\':
adamc@1025	1387 strcpy(s2, "\\\\");
adamc@1025	1388 s2 += 2;
adamc@1025	1389 break;
adamc@1025	1390 default:
adamc@1147	1391 if (isprint((int)c))
adamc@1025	1392 *s2++ = c;
adamc@1025	1393 else {
adamc@1025	1394 sprintf(s2, "\\%3o", c);
adamc@1025	1395 s2 += 4;
adamc@1025	1396 }
adamc@1025	1397 }
adamc@1025	1398
adamc@1025	1399 strcpy(s2, "\"");
adamc@1025	1400 ctx->heap.front = s2 + 2;
adamc@1025	1401 return r;
adamc@1025	1402 }
adamc@1025	1403
adamc@574	1404 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1405 char r, s2;
adamc@574	1406
adamc@574	1407 uw_check_script(ctx, strlen(s) * 4 + 2);
adamc@574	1408
adamc@666	1409 r = s2 = ctx->script.front;
adamc@574	1410 *s2++ = '"';
adamc@574	1411
adamc@574	1412 for (; *s; s++) {
adamc@574	1413 char c = *s;
adamc@574	1414
adamc@574	1415 switch (c) {
adamc@577	1416 case '\'':
adamc@1027	1417 strcpy(s2, "\\");
adamc@574	1418 s2 += 2;
adamc@574	1419 break;
adamc@574	1420 case '\\':
adamc@574	1421 strcpy(s2, "\\\\");
adamc@574	1422 s2 += 2;
adamc@574	1423 break;
adamc@574	1424 default:
adamc@1147	1425 if (isprint((int)c))
adamc@574	1426 *s2++ = c;
adamc@574	1427 else {
adamc@574	1428 sprintf(s2, "\\%3o", c);
adamc@574	1429 s2 += 4;
adamc@574	1430 }
adamc@574	1431 }
adamc@574	1432 }
adamc@574	1433
adamc@574	1434 strcpy(s2, "\"");
adamc@666	1435 ctx->script.front = s2 + 1;
adamc@574	1436 return r;
adamc@574	1437 }
adamc@574	1438
adamc@682	1439 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1440 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1441 return "null";
adamc@682	1442 else {
adamc@682	1443 int len;
adamc@682	1444 char *r;
adamc@682	1445
adamc@682	1446 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1447 r = ctx->heap.front;
adamc@682	1448 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1449 ctx->heap.front += len+1;
adamc@682	1450 return r;
adamc@682	1451 }
adamc@682	1452 }
adamc@682	1453
adamc@577	1454 uw_Basis_int uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1455 int len;
adamc@577	1456 size_t s_len = strlen(s);
adamc@562	1457
adamc@970	1458 uw_check_script(ctx, 18 + INTS_MAX + s_len);
adamc@970	1459 sprintf(ctx->script.front, "var s%d=sc(exec(%n", ctx->source_count, &len);
adamc@666	1460 ctx->script.front += len;
adamc@666	1461 strcpy(ctx->script.front, s);
adamc@666	1462 ctx->script.front += s_len;
adamc@970	1463 strcpy(ctx->script.front, "));");
adamc@972	1464 ctx->script.front += 3;
adamc@562	1465
adamc@565	1466 return ctx->source_count++;
adamc@117	1467 }
adamc@117	1468
adamc@577	1469 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_int n, uw_Basis_string s) {
adamc@577	1470 int len;
adamc@577	1471 size_t s_len = strlen(s);
adamc@577	1472
adamc@970	1473 uw_check_script(ctx, 12 + INTS_MAX + s_len);
adamc@970	1474 sprintf(ctx->script.front, "sv(s%d,exec(%n", (int)n, &len);
adamc@666	1475 ctx->script.front += len;
adamc@666	1476 strcpy(ctx->script.front, s);
adamc@666	1477 ctx->script.front += s_len;
adamc@970	1478 strcpy(ctx->script.front, "));");
adamc@972	1479 ctx->script.front += 3;
adamc@577	1480
adamc@577	1481 return uw_unit_v;
adamc@577	1482 }
adamc@577	1483
adamc@311	1484 static void uw_check(uw_context ctx, size_t extra) {
adamc@1113	1485 ctx_buf_check(ctx, "page", &ctx->page, extra);
adamc@117	1486 }
adamc@117	1487
adamc@311	1488 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1489 *(ctx->page.front)++ = c;
adamc@117	1490 }
adamc@117	1491
adamc@311	1492 void uw_writec(uw_context ctx, char c) {
adamc@311	1493 uw_check(ctx, 1);
adamc@311	1494 uw_writec_unsafe(ctx, c);
adamc@117	1495 }
adamc@117	1496
adamc@311	1497 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1498 int len = strlen(s);
adamc@666	1499 memcpy(ctx->page.front, s, len);
adamc@666	1500 ctx->page.front += len;
adamc@117	1501 }
adamc@117	1502
adamc@311	1503 void uw_write(uw_context ctx, const char* s) {
adamc@311	1504 uw_check(ctx, strlen(s) + 1);
adamc@311	1505 uw_write_unsafe(ctx, s);
adamc@666	1506 *ctx->page.front = 0;
adamc@102	1507 }
adamc@106	1508
adamc@311	1509 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1510 char *result;
adamc@136	1511 int len;
adamc@311	1512 uw_check_heap(ctx, INTS_MAX);
adamc@666	1513 result = ctx->heap.front;
adamc@276	1514 sprintf(result, "%lld%n", n, &len);
adamc@666	1515 ctx->heap.front += len+1;
adamc@136	1516 return result;
adamc@106	1517 }
adamc@106	1518
adamc@311	1519 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1520 char *result;
adamc@136	1521 int len;
adamc@311	1522 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1523 result = ctx->heap.front;
adamc@136	1524 sprintf(result, "%g%n", n, &len);
adamc@666	1525 ctx->heap.front += len+1;
adamc@136	1526 return result;
adamc@106	1527 }
adamc@106	1528
adamc@311	1529 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1530 int len = strlen(s);
adamc@136	1531 char result, p;
adamc@311	1532 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1533
adamc@666	1534 result = p = ctx->heap.front;
adamc@136	1535
adamc@136	1536 for (; *s; s++) {
adamc@1054	1537 unsigned char c = *s;
adamc@136	1538
adamc@136	1539 if (c == '"') {
adamc@136	1540 strcpy(p, """);
adamc@136	1541 p += 6;
adamc@136	1542 } else if (c == '&') {
adamc@136	1543 strcpy(p, "&");
adamc@136	1544 p += 5;
adamc@136	1545 }
adamc@1059	1546 else
adamc@136	1547 *p++ = c;
adamc@136	1548 }
adamc@136	1549
adamc@137	1550 *p++ = 0;
adamc@666	1551 ctx->heap.front = p;
adamc@136	1552 return result;
adamc@106	1553 }
adamc@106	1554
adamc@1011	1555 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1556 char result, p;
adamc@1011	1557 uw_check_heap(ctx, 7);
adamc@1011	1558
adamc@1011	1559 result = p = ctx->heap.front;
adamc@1011	1560
adamc@1011	1561 if (c == '"') {
adamc@1011	1562 strcpy(p, """);
adamc@1011	1563 p += 6;
adamc@1011	1564 } else if (c == '&') {
adamc@1011	1565 strcpy(p, "&");
adamc@1011	1566 p += 5;
adamc@1011	1567 }
adamc@1059	1568 else
adamc@1011	1569 *p++ = c;
adamc@1011	1570
adamc@1011	1571 *p++ = 0;
adamc@1011	1572 ctx->heap.front = p;
adamc@1011	1573 return result;
adamc@1011	1574 }
adamc@1011	1575
adamc@721	1576 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1577 return s;
adamc@721	1578 }
adamc@721	1579
adamc@311	1580 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1581 int len;
adamc@117	1582
adamc@666	1583 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1584 ctx->page.front += len;
adamc@106	1585 }
adamc@106	1586
adamc@428	1587 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1588 uw_check(ctx, INTS_MAX);
adamc@311	1589 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1590
adamc@428	1591 return uw_unit_v;
adamc@106	1592 }
adamc@106	1593
adamc@428	1594 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1595 int len;
adamc@117	1596
adamc@311	1597 uw_check(ctx, FLOATS_MAX);
adamc@666	1598 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1599 ctx->page.front += len;
adamc@428	1600
adamc@428	1601 return uw_unit_v;
adamc@117	1602 }
adamc@117	1603
adamc@428	1604 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1605 uw_check(ctx, strlen(s) * 6);
adamc@117	1606
adamc@106	1607 for (; *s; s++) {
adamc@1054	1608 unsigned char c = *s;
adamc@106	1609
adamc@106	1610 if (c == '"')
adamc@311	1611 uw_write_unsafe(ctx, """);
adamc@136	1612 else if (c == '&')
adamc@311	1613 uw_write_unsafe(ctx, "&");
adamc@1059	1614 else
adamc@311	1615 uw_writec_unsafe(ctx, c);
adamc@106	1616 }
adamc@428	1617
adamc@428	1618 return uw_unit_v;
adamc@106	1619 }
adamc@120	1620
adamc@1011	1621 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1622 uw_check(ctx, 6);
adamc@1011	1623
adamc@1011	1624 if (c == '"')
adamc@1011	1625 uw_write_unsafe(ctx, """);
adamc@1011	1626 else if (c == '&')
adamc@1011	1627 uw_write_unsafe(ctx, "&");
adamc@1059	1628 else
adamc@1011	1629 uw_writec_unsafe(ctx, c);
adamc@1011	1630
adamc@1011	1631 return uw_unit_v;
adamc@1011	1632 }
adamc@1011	1633
adamc@120	1634
adamc@311	1635 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1636 int len;
adamc@137	1637 char *r;
adamc@137	1638
adamc@311	1639 uw_check_heap(ctx, INTS_MAX);
adamc@666	1640 r = ctx->heap.front;
adamc@276	1641 sprintf(r, "%lld%n", n, &len);
adamc@666	1642 ctx->heap.front += len+1;
adamc@137	1643 return r;
adamc@120	1644 }
adamc@120	1645
adamc@682	1646 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1647 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1648 return "";
adamc@682	1649 else {
adamc@682	1650 int len;
adamc@682	1651 char *r;
adamc@679	1652
adamc@682	1653 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1654 r = ctx->heap.front;
adamc@682	1655 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1656 ctx->heap.front += len+1;
adamc@682	1657 return r;
adamc@682	1658 }
adamc@679	1659 }
adamc@679	1660
adamc@311	1661 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1662 int len;
adamc@137	1663 char *r;
adamc@137	1664
adamc@311	1665 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1666 r = ctx->heap.front;
adamc@137	1667 sprintf(r, "%g%n", n, &len);
adamc@666	1668 ctx->heap.front += len+1;
adamc@137	1669 return r;
adamc@120	1670 }
adamc@120	1671
adamc@311	1672 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1673 char r, p;
adamc@137	1674
adamc@925	1675 if (s[0] == '\0')
adamc@925	1676 return "_";
adamc@925	1677
adamc@925	1678 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1679
adamc@925	1680 r = p = ctx->heap.front;
adamc@925	1681 if (s[0] == '_')
adamc@925	1682 *p++ = '_';
adamc@925	1683
adamc@925	1684 for (; *s; s++) {
adamc@1087	1685 unsigned char c = *s;
adamc@137	1686
adamc@137	1687 if (c == ' ')
adamc@137	1688 *p++ = '+';
adamc@137	1689 else if (isalnum(c))
adamc@137	1690 *p++ = c;
adamc@137	1691 else {
adamc@1259	1692 sprintf(p, ".%02X", c);
adamc@137	1693 p += 3;
adamc@137	1694 }
adamc@137	1695 }
adamc@137	1696
adamc@137	1697 *p++ = 0;
adamc@666	1698 ctx->heap.front = p;
adamc@137	1699 return r;
adamc@120	1700 }
adamc@120	1701
adamc@311	1702 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1703 if (b == uw_Basis_False)
adamc@186	1704 return "0";
adamc@186	1705 else
adamc@186	1706 return "1";
adamc@186	1707 }
adamc@186	1708
adamc@311	1709 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1710 int len;
adamc@120	1711
adamc@666	1712 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1713 ctx->page.front += len;
adamc@120	1714 }
adamc@120	1715
adamc@428	1716 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1717 uw_check(ctx, INTS_MAX);
adamc@311	1718 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1719
adamc@428	1720 return uw_unit_v;
adamc@120	1721 }
adamc@120	1722
adamc@682	1723 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1724 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1725 int len;
adamc@682	1726
adamc@682	1727 uw_check(ctx, INTS_MAX + 1);
adamc@682	1728 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1729 ctx->page.front += len;
adamc@682	1730 }
adamc@682	1731
adamc@679	1732 return uw_unit_v;
adamc@679	1733 }
adamc@679	1734
adamc@428	1735 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1736 int len;
adamc@120	1737
adamc@311	1738 uw_check(ctx, FLOATS_MAX);
adamc@666	1739 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1740 ctx->page.front += len;
adamc@428	1741
adamc@428	1742 return uw_unit_v;
adamc@120	1743 }
adamc@120	1744
adamc@488	1745 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@488	1746 return uw_Basis_urlifyInt(ctx, t);
adamc@488	1747 }
adamc@488	1748
adamc@428	1749 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1750 if (s[0] == '\0') {
adamc@925	1751 uw_check(ctx, 1);
adamc@925	1752 uw_writec_unsafe(ctx, '_');
adamc@925	1753 return uw_unit_v;
adamc@925	1754 }
adamc@925	1755
adamc@925	1756 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1757
adamc@925	1758 if (s[0] == '_')
adamc@925	1759 uw_writec_unsafe(ctx, '_');
adamc@120	1760
adamc@120	1761 for (; *s; s++) {
adamc@1087	1762 unsigned char c = *s;
adamc@120	1763
adamc@120	1764 if (c == ' ')
adamc@311	1765 uw_writec_unsafe(ctx, '+');
adamc@120	1766 else if (isalnum(c))
adamc@311	1767 uw_writec_unsafe(ctx, c);
adamc@120	1768 else {
adamc@1259	1769 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1770 ctx->page.front += 3;
adamc@120	1771 }
adamc@120	1772 }
adamc@428	1773
adamc@428	1774 return uw_unit_v;
adamc@120	1775 }
adamc@120	1776
adamc@428	1777 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1778 if (b == uw_Basis_False)
adamc@311	1779 uw_writec(ctx, '0');
adamc@186	1780 else
adamc@311	1781 uw_writec(ctx, '1');
adamc@428	1782
adamc@428	1783 return uw_unit_v;
adamc@186	1784 }
adamc@186	1785
adamc@120	1786
adamc@311	1787 static char uw_unurlify_advance(char s) {
adamc@144	1788 char *new_s = strchr(s, '/');
adamc@120	1789
adamc@120	1790 if (new_s)
adamc@120	1791 *new_s++ = 0;
adamc@120	1792 else
adamc@144	1793 new_s = strchr(s, 0);
adamc@144	1794
adamc@144	1795 return new_s;
adamc@144	1796 }
adamc@144	1797
adamc@311	1798 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1799 char new_s = uw_unurlify_advance(s);
adamc@311	1800 uw_Basis_int r;
adamc@120	1801
adamc@276	1802 r = atoll(*s);
adamc@120	1803 *s = new_s;
adamc@120	1804 return r;
adamc@120	1805 }
adamc@120	1806
adamc@311	1807 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1808 char new_s = uw_unurlify_advance(s);
adamc@311	1809 uw_Basis_float r;
adamc@120	1810
adamc@120	1811 r = atof(*s);
adamc@120	1812 *s = new_s;
adamc@120	1813 return r;
adamc@120	1814 }
adamc@120	1815
adamc@488	1816 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adamc@488	1817 return uw_Basis_unurlifyInt(ctx, s);
adamc@488	1818 }
adamc@488	1819
adamc@1023	1820 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1821 char s1, s2 = s;
adamc@144	1822 int n;
adamc@136	1823
adamc@1023	1824 if (!fromClient) {
adamc@1023	1825 if (*s2 == '_')
adamc@1023	1826 ++s2;
adamc@1259	1827 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1828 s2 += 3;
adamc@1023	1829 }
adamc@925	1830
adamc@927	1831 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	1832 unsigned char c = *s2;
adamc@136	1833
adamc@136	1834 switch (c) {
adamc@136	1835 case '+':
adamc@136	1836 *s1 = ' ';
adamc@136	1837 break;
adamc@136	1838 case '%':
adamc@169	1839 if (s2[1] == 0)
adamc@311	1840 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1841 if (s2[2] == 0)
adamc@311	1842 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1843 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@311	1844 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@136	1845 *s1 = n;
adamc@136	1846 s2 += 2;
adamc@136	1847 break;
adamc@1259	1848 case '.':
adamc@1259	1849 if (!fromClient) {
adamc@1259	1850 if (s2[1] == 0)
adamc@1259	1851 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	1852 if (s2[2] == 0)
adamc@1259	1853 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	1854 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@1259	1855 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@1259	1856 *s1 = n;
adamc@1259	1857 s2 += 2;
adamc@1259	1858 break;
adamc@1259	1859 }
adamc@136	1860 default:
adamc@136	1861 *s1 = c;
adamc@136	1862 }
adamc@136	1863 }
adamc@136	1864 *s1++ = 0;
adamc@144	1865 return s1;
adamc@144	1866 }
adamc@144	1867
adamc@311	1868 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	1869 char new_s = uw_unurlify_advance(s);
adamc@311	1870 uw_Basis_bool r;
adamc@186	1871
adamc@186	1872 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	1873 r = uw_Basis_False;
adamc@186	1874 else
adamc@311	1875 r = uw_Basis_True;
adamc@186	1876
adamc@186	1877 *s = new_s;
adamc@186	1878 return r;
adamc@186	1879 }
adamc@186	1880
adamc@311	1881 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	1882 char new_s = uw_unurlify_advance(s);
adamc@1134	1883 char *r;
adamc@1134	1884 int len;
adamc@144	1885
adamc@200	1886 len = strlen(*s);
adamc@311	1887 uw_check_heap(ctx, len + 1);
adamc@144	1888
adamc@666	1889 r = ctx->heap.front;
adamc@1023	1890 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	1891 *s = new_s;
adamc@1023	1892 return r;
adamc@1023	1893 }
adamc@1023	1894
adamc@1109	1895 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	1896 s = uw_unurlify_advance(s);
adamc@1109	1897 return uw_unit_v;
adamc@1109	1898 }
adamc@1109	1899
adamc@1023	1900 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	1901 char new_s = uw_unurlify_advance(s);
adamc@1134	1902 char *r;
adamc@1134	1903 int len;
adamc@1023	1904
adamc@1023	1905 len = strlen(*s);
adamc@1023	1906 uw_check_heap(ctx, len + 1);
adamc@1023	1907
adamc@1023	1908 r = ctx->heap.front;
adamc@1023	1909 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	1910 *s = new_s;
adamc@136	1911 return r;
adamc@120	1912 }
adamc@135	1913
adamc@135	1914
adamc@311	1915 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	1916 int len;
adamc@286	1917 char *r;
adamc@286	1918
adamc@311	1919 uw_check_heap(ctx, INTS_MAX);
adamc@666	1920 r = ctx->heap.front;
adamc@286	1921 sprintf(r, "%lld%n", n, &len);
adamc@666	1922 ctx->heap.front += len+1;
adamc@286	1923 return r;
adamc@286	1924 }
adamc@286	1925
adamc@428	1926 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	1927 int len;
adamc@286	1928
adamc@311	1929 uw_check(ctx, INTS_MAX);
adamc@666	1930 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1931 ctx->page.front += len;
adamc@428	1932
adamc@428	1933 return uw_unit_v;
adamc@286	1934 }
adamc@286	1935
adamc@311	1936 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	1937 int len;
adamc@286	1938 char *r;
adamc@286	1939
adamc@311	1940 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1941 r = ctx->heap.front;
adamc@286	1942 sprintf(r, "%g%n", n, &len);
adamc@666	1943 ctx->heap.front += len+1;
adamc@286	1944 return r;
adamc@286	1945 }
adamc@286	1946
adamc@428	1947 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	1948 int len;
adamc@286	1949
adamc@311	1950 uw_check(ctx, FLOATS_MAX);
adamc@666	1951 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1952 ctx->page.front += len;
adamc@428	1953
adamc@428	1954 return uw_unit_v;
adamc@286	1955 }
adamc@286	1956
adamc@311	1957 char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1958 char r, s2;
adamc@137	1959
adamc@311	1960 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	1961
adamc@666	1962 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	1963 unsigned char c = *s;
adamc@137	1964
adamc@137	1965 switch (c) {
adamc@137	1966 case '<':
adamc@137	1967 strcpy(s2, "<");
adamc@137	1968 s2 += 4;
adamc@137	1969 break;
adamc@137	1970 case '&':
adamc@137	1971 strcpy(s2, "&");
adamc@137	1972 s2 += 5;
adamc@137	1973 break;
adamc@137	1974 default:
adamc@1059	1975 *s2++ = c;
adamc@137	1976 }
adamc@137	1977 }
adamc@137	1978
adamc@137	1979 *s2++ = 0;
adamc@666	1980 ctx->heap.front = s2;
adamc@137	1981 return r;
adamc@135	1982 }
adamc@135	1983
adamc@428	1984 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	1985 uw_check(ctx, strlen(s) * 6);
adamc@135	1986
adamc@135	1987 for (; *s; s++) {
adamc@1054	1988 unsigned char c = *s;
adamc@135	1989
adamc@135	1990 switch (c) {
adamc@135	1991 case '<':
adamc@311	1992 uw_write_unsafe(ctx, "<");
adamc@135	1993 break;
adamc@135	1994 case '&':
adamc@311	1995 uw_write_unsafe(ctx, "&");
adamc@135	1996 break;
adamc@135	1997 default:
adamc@1059	1998 uw_writec_unsafe(ctx, c);
adamc@135	1999 }
adamc@135	2000 }
adamc@428	2001
adamc@428	2002 return uw_unit_v;
adamc@135	2003 }
adamc@180	2004
adamc@311	2005 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2006 if (b == uw_Basis_False)
adamc@286	2007 return "False";
adamc@286	2008 else
adamc@286	2009 return "True";
adamc@286	2010 }
adamc@286	2011
adamc@428	2012 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2013 if (b == uw_Basis_False) {
adamc@311	2014 uw_check(ctx, 6);
adamc@666	2015 strcpy(ctx->page.front, "False");
adamc@666	2016 ctx->page.front += 5;
adamc@286	2017 } else {
adamc@311	2018 uw_check(ctx, 5);
adamc@666	2019 strcpy(ctx->page.front, "True");
adamc@666	2020 ctx->page.front += 4;
adamc@286	2021 }
adamc@428	2022
adamc@428	2023 return uw_unit_v;
adamc@286	2024 }
adamc@286	2025
adamc@436	2026 #define TIME_FMT "%x %X"
adamc@438	2027 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436	2028
adamc@436	2029 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436	2030 size_t len;
adamc@436	2031 char *r;
adamc@436	2032 struct tm stm;
adamc@436	2033
adamc@436	2034 if (localtime_r(&t, &stm)) {
adamc@436	2035 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2036 r = ctx->heap.front;
adamc@436	2037 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2038 ctx->heap.front += len+1;
adamc@436	2039 return r;
adamc@436	2040 } else
adamc@436	2041 return "<i>Invalid time</i>";
adamc@436	2042 }
adamc@436	2043
adamc@436	2044 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436	2045 size_t len;
adamc@436	2046 char *r;
adamc@436	2047 struct tm stm;
adamc@436	2048
adamc@436	2049 if (localtime_r(&t, &stm)) {
adamc@436	2050 uw_check(ctx, TIMES_MAX);
adamc@666	2051 r = ctx->page.front;
adamc@436	2052 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2053 ctx->page.front += len;
adamc@436	2054 } else {
adamc@436	2055 uw_check(ctx, 20);
adamc@666	2056 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666	2057 ctx->page.front += 19;
adamc@436	2058 }
adamc@436	2059
adamc@436	2060 return uw_unit_v;
adamc@436	2061 }
adamc@436	2062
adamc@821	2063 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	2064 if (n >= 0 && n < strlen(s))
adamc@821	2065 return s[n];
adamc@821	2066 else
adamc@821	2067 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adamc@821	2068 }
adamc@821	2069
adamc@821	2070 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	2071 if (n >= 0 && n < strlen(s))
adamc@821	2072 return &s[n];
adamc@821	2073 else
adamc@821	2074 uw_error(ctx, FATAL, "Out-of-bounds strsuffix");
adamc@821	2075 }
adamc@821	2076
adamc@828	2077 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2078 return strlen(s);
adamc@828	2079 }
adamc@828	2080
adamc@829	2081 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2082 return strchr(s, ch);
adamc@829	2083 }
adamc@829	2084
adamc@831	2085 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2086 return strcspn(s, chs);
adamc@831	2087 }
adamc@831	2088
adamc@829	2089 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2090 uw_Basis_string r = strchr(s, ch);
adamc@829	2091 if (r == NULL)
adamc@829	2092 return NULL;
adamc@829	2093 else {
adamc@829	2094 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2095 *nr = r - s;
adamc@829	2096 return nr;
adamc@829	2097 }
adamc@829	2098 }
adamc@829	2099
adamc@311	2100 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2101 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2102 char *s;
adamc@180	2103
adamc@311	2104 uw_check_heap(ctx, len);
adamc@180	2105
adamc@666	2106 s = ctx->heap.front;
adamc@180	2107
adamc@180	2108 strcpy(s, s1);
adamc@180	2109 strcat(s, s2);
adamc@666	2110 ctx->heap.front += len;
adamc@180	2111
adamc@180	2112 return s;
adamc@180	2113 }
adamc@278	2114
adamc@829	2115 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2116 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2117
adamc@829	2118 if (start < 0)
adamc@829	2119 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2120 if (len < 0)
adamc@829	2121 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2122 if (start + len > full_len)
adamc@829	2123 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2124
adamc@829	2125 if (start + len == full_len)
adamc@829	2126 return &s[start];
adamc@829	2127 else {
adamc@829	2128 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2129 memcpy(r, s+start, len);
adamc@829	2130 r[len] = 0;
adamc@829	2131 return r;
adamc@829	2132 }
adamc@829	2133
adamc@829	2134 }
adamc@829	2135
adamc@1023	2136 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2137 char *r;
adamc@1023	2138
adamc@1023	2139 uw_check_heap(ctx, 2);
adamc@1023	2140 r = ctx->heap.front;
adamc@1023	2141 r[0] = ch;
adamc@1023	2142 r[1] = 0;
adamc@1023	2143
adamc@1023	2144 ctx->heap.front += 2;
adamc@1023	2145
adamc@1023	2146 return r;
adamc@1023	2147 }
adamc@1023	2148
adamc@737	2149 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2150 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2151 char *s;
adamc@278	2152
adamc@311	2153 uw_check_heap(ctx, len);
adamc@278	2154
adamc@666	2155 s = ctx->heap.front;
adamc@278	2156
adamc@278	2157 strcpy(s, s1);
adamc@666	2158 ctx->heap.front += len;
adamc@278	2159
adamc@278	2160 return s;
adamc@278	2161 }
adamc@280	2162
adamc@737	2163 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2164 if (s1)
adamc@737	2165 return uw_strdup(ctx, s1);
adamc@493	2166 else
adamc@493	2167 return NULL;
adamc@493	2168 }
adamc@493	2169
adamc@742	2170 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2171 char *r = uw_malloc(ctx, len);
adamc@742	2172 memcpy(r, p, len);
adamc@742	2173 return r;
adamc@742	2174 }
adamc@280	2175
adamc@879	2176 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2177
adamc@311	2178 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2179 int len;
adamc@281	2180 char *r;
adamc@281	2181
adamc@311	2182 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2183 r = ctx->heap.front;
adamc@879	2184 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2185 ctx->heap.front += len+1;
adamc@281	2186 return r;
adamc@281	2187 }
adamc@281	2188
adamc@467	2189 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2190 if (n == NULL)
adamc@467	2191 return "NULL";
adamc@467	2192 else
adamc@467	2193 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2194 }
adamc@467	2195
adamc@879	2196 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879	2197
adamc@311	2198 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2199 int len;
adamc@281	2200 char *r;
adamc@281	2201
adamc@311	2202 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2203 r = ctx->heap.front;
adamc@879	2204 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2205 ctx->heap.front += len+1;
adamc@281	2206 return r;
adamc@281	2207 }
adamc@281	2208
adamc@467	2209 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2210 if (n == NULL)
adamc@467	2211 return "NULL";
adamc@467	2212 else
adamc@467	2213 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2214 }
adamc@467	2215
adamc@879	2216 int uw_Estrings = 1;
adamc@879	2217 char *uw_sqlsuffixString = "::text";
adamc@1011	2218 char *uw_sqlsuffixChar = "::char";
adamc@281	2219
adamc@311	2220 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2221 char r, s2;
adamc@280	2222
adamc@879	2223 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2224
adamc@666	2225 r = s2 = ctx->heap.front;
adamc@879	2226 if (uw_Estrings)
adamc@879	2227 *s2++ = 'E';
adamc@280	2228 *s2++ = '\'';
adamc@280	2229
adamc@280	2230 for (; *s; s++) {
adamc@280	2231 char c = *s;
adamc@280	2232
adamc@280	2233 switch (c) {
adamc@280	2234 case '\'':
adamc@885	2235 if (uw_Estrings)
adamc@885	2236 strcpy(s2, "\\'");
adamc@885	2237 else
adamc@885	2238 strcpy(s2, "''");
adamc@280	2239 s2 += 2;
adamc@280	2240 break;
adamc@280	2241 case '\\':
adamc@885	2242 if (uw_Estrings) {
adamc@885	2243 strcpy(s2, "\\\\");
adamc@885	2244 s2 += 2;
adamc@885	2245 } else
adamc@885	2246 *s2++ = '\\';
adamc@280	2247 break;
adamc@280	2248 default:
adamc@1150	2249 if (isprint((int)c))
adamc@280	2250 *s2++ = c;
adamc@879	2251 else if (uw_Estrings) {
adamc@737	2252 sprintf(s2, "\\%03o", c);
adamc@280	2253 s2 += 4;
adamc@280	2254 }
adamc@879	2255 else
adamc@879	2256 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280	2257 }
adamc@280	2258 }
adamc@280	2259
adamc@879	2260 *s2++ = '\'';
adamc@879	2261 strcpy(s2, uw_sqlsuffixString);
adamc@879	2262 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2263 return r;
adamc@280	2264 }
adamc@281	2265
adamc@1011	2266 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2267 char r, s2;
adamc@1011	2268
adamc@1011	2269 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2270
adamc@1011	2271 r = s2 = ctx->heap.front;
adamc@1011	2272 if (uw_Estrings)
adamc@1011	2273 *s2++ = 'E';
adamc@1011	2274 *s2++ = '\'';
adamc@1011	2275
adamc@1011	2276 switch (c) {
adamc@1011	2277 case '\'':
adamc@1011	2278 if (uw_Estrings)
adamc@1011	2279 strcpy(s2, "\\'");
adamc@1011	2280 else
adamc@1011	2281 strcpy(s2, "''");
adamc@1011	2282 s2 += 2;
adamc@1011	2283 break;
adamc@1011	2284 case '\\':
adamc@1011	2285 if (uw_Estrings) {
adamc@1011	2286 strcpy(s2, "\\\\");
adamc@1011	2287 s2 += 2;
adamc@1011	2288 } else
adamc@1011	2289 *s2++ = '\\';
adamc@1011	2290 break;
adamc@1011	2291 default:
adamc@1150	2292 if (isprint((int)c))
adamc@1011	2293 *s2++ = c;
adamc@1011	2294 else if (uw_Estrings) {
adamc@1011	2295 sprintf(s2, "\\%03o", c);
adamc@1011	2296 s2 += 4;
adamc@1011	2297 }
adamc@1011	2298 else
adamc@1011	2299 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2300 }
adamc@1011	2301
adamc@1011	2302 *s2++ = '\'';
adamc@1011	2303 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2304 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2305 return r;
adamc@1011	2306 }
adamc@1011	2307
adamc@879	2308 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2309
adamc@737	2310 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2311 char r, s2;
adamc@737	2312 size_t i;
adamc@737	2313
adamc@879	2314 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737	2315
adamc@737	2316 r = s2 = ctx->heap.front;
adamc@879	2317 if (uw_Estrings)
adamc@879	2318 *s2++ = 'E';
adamc@737	2319 *s2++ = '\'';
adamc@737	2320
adamc@737	2321 for (i = 0; i < b.size; ++i) {
adamc@737	2322 char c = b.data[i];
adamc@737	2323
adamc@737	2324 switch (c) {
adamc@737	2325 case '\'':
adamc@885	2326 if (uw_Estrings)
adamc@885	2327 strcpy(s2, "\\'");
adamc@885	2328 else
adamc@885	2329 strcpy(s2, "''");
adamc@737	2330 s2 += 2;
adamc@737	2331 break;
adamc@737	2332 case '\\':
adamc@885	2333 if (uw_Estrings) {
adamc@885	2334 strcpy(s2, "\\\\\\\\");
adamc@885	2335 s2 += 4;
adamc@885	2336 } else
adamc@885	2337 *s2++ = '\\';
adamc@737	2338 break;
adamc@737	2339 default:
adamc@1150	2340 if (isprint((int)c))
adamc@737	2341 *s2++ = c;
adamc@879	2342 else if (uw_Estrings) {
adamc@737	2343 sprintf(s2, "\\\\%03o", c);
adamc@737	2344 s2 += 5;
adamc@737	2345 }
adamc@879	2346 else
adamc@879	2347 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737	2348 }
adamc@737	2349 }
adamc@737	2350
adamc@879	2351 *s2++ = '\'';
adamc@879	2352 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2353 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2354 return r;
adamc@737	2355 }
adamc@737	2356
adamc@682	2357 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2358 int len;
adamc@682	2359 char *r;
adamc@682	2360 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2361
adamc@682	2362 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2363 r = ctx->heap.front;
adamc@879	2364 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2365 ctx->heap.front += len+1;
adamc@682	2366 return r;
adamc@682	2367 }
adamc@682	2368
adamc@682	2369 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2370 int len;
adamc@682	2371 char *r;
adamc@682	2372 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2373
adamc@682	2374 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2375 r = ctx->heap.front;
adamc@682	2376 sprintf(r, "%lld%n", combo, &len);
adamc@682	2377 ctx->heap.front += len+1;
adamc@682	2378 return r;
adamc@682	2379 }
adamc@682	2380
adamc@879	2381 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2382
adamc@682	2383 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2384 int len;
adamc@682	2385 char *r;
adamc@682	2386
adamc@682	2387 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2388 r = ctx->heap.front;
adamc@879	2389 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2390 ctx->heap.front += len+1;
adamc@682	2391 return r;
adamc@682	2392 }
adamc@682	2393
adamc@682	2394 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2395 int len;
adamc@682	2396 char *r;
adamc@682	2397
adamc@682	2398 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2399 r = ctx->heap.front;
adamc@682	2400 sprintf(r, "%u%n", cli, &len);
adamc@682	2401 ctx->heap.front += len+1;
adamc@682	2402 return r;
adamc@682	2403 }
adamc@682	2404
adamc@467	2405 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2406 if (s == NULL)
adamc@467	2407 return "NULL";
adamc@467	2408 else
adamc@467	2409 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2410 }
adamc@467	2411
adamc@311	2412 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2413 if (b == uw_Basis_False)
adamc@281	2414 return "FALSE";
adamc@281	2415 else
adamc@281	2416 return "TRUE";
adamc@281	2417 }
adamc@282	2418
adamc@467	2419 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2420 if (b == NULL)
adamc@467	2421 return "NULL";
adamc@467	2422 else
adamc@467	2423 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2424 }
adamc@467	2425
adamc@439	2426 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2427 size_t len;
adamc@682	2428 char r, s;
adamc@682	2429 struct tm stm;
adamc@682	2430
adamc@682	2431 if (localtime_r(&t, &stm)) {
adamc@682	2432 s = uw_malloc(ctx, TIMES_MAX);
adamc@682	2433 len = strftime(s, TIMES_MAX, TIME_FMT, &stm);
adamc@682	2434 r = uw_malloc(ctx, len + 14);
adamc@682	2435 sprintf(r, "'%s'::timestamp", s);
adamc@682	2436 return r;
adamc@682	2437 } else
adamc@682	2438 return "<Invalid time>";
adamc@682	2439 }
adamc@682	2440
adamc@682	2441 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2442 size_t len;
adamc@439	2443 char *r;
adamc@439	2444 struct tm stm;
adamc@439	2445
adamc@439	2446 if (localtime_r(&t, &stm)) {
adamc@439	2447 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2448 r = ctx->heap.front;
adamc@439	2449 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2450 ctx->heap.front += len+1;
adamc@439	2451 return r;
adamc@439	2452 } else
adamc@439	2453 return "<Invalid time>";
adamc@439	2454 }
adamc@439	2455
adamc@467	2456 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2457 if (t == NULL)
adamc@467	2458 return "NULL";
adamc@467	2459 else
adamc@467	2460 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2461 }
adamc@467	2462
adamc@311	2463 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2464 static uw_Basis_int true = 1;
adamc@311	2465 static uw_Basis_int false = 0;
adamc@282	2466
adamc@311	2467 if (b == uw_Basis_False)
adamc@282	2468 return (char *)&false;
adamc@282	2469 else
adamc@282	2470 return (char *)&true;
adamc@282	2471 }
adamc@284	2472
adamc@311	2473 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2474 int len;
adamc@284	2475 char *r;
adamc@284	2476
adamc@311	2477 uw_check_heap(ctx, INTS_MAX);
adamc@666	2478 r = ctx->heap.front;
adamc@284	2479 sprintf(r, "%lld%n", n, &len);
adamc@666	2480 ctx->heap.front += len+1;
adamc@284	2481 return r;
adamc@284	2482 }
adamc@285	2483
adamc@311	2484 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2485 int len;
adamc@285	2486 char *r;
adamc@285	2487
adamc@311	2488 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2489 r = ctx->heap.front;
adamc@285	2490 sprintf(r, "%g%n", n, &len);
adamc@666	2491 ctx->heap.front += len+1;
adamc@285	2492 return r;
adamc@285	2493 }
adamc@285	2494
adamc@821	2495 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2496 char *r = uw_malloc(ctx, 2);
adamc@821	2497 r[0] = ch;
adamc@821	2498 r[1] = 0;
adamc@821	2499 return r;
adamc@821	2500 }
adamc@821	2501
adamc@311	2502 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2503 if (b == uw_Basis_False)
adamc@285	2504 return "False";
adamc@285	2505 else
adamc@285	2506 return "True";
adamc@285	2507 }
adamc@288	2508
adamc@436	2509 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436	2510 size_t len;
adamc@436	2511 char *r;
adamc@436	2512 struct tm stm;
adamc@436	2513
adamc@436	2514 if (localtime_r(&t, &stm)) {
adamc@436	2515 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2516 r = ctx->heap.front;
adamc@436	2517 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2518 ctx->heap.front += len+1;
adamc@436	2519 return r;
adamc@436	2520 } else
adamc@436	2521 return "<Invalid time>";
adamc@436	2522 }
adamc@288	2523
adamc@311	2524 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2525 char *endptr;
adamc@311	2526 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2527
adamc@288	2528 if (s != '\0' && endptr == '\0') {
adamc@311	2529 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2530 *r = n;
adamc@288	2531 return r;
adamc@288	2532 } else
adamc@288	2533 return NULL;
adamc@288	2534 }
adamc@289	2535
adamc@311	2536 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2537 char *endptr;
adamc@311	2538 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2539
adamc@289	2540 if (s != '\0' && endptr == '\0') {
adamc@311	2541 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2542 *r = n;
adamc@289	2543 return r;
adamc@289	2544 } else
adamc@289	2545 return NULL;
adamc@289	2546 }
adamc@289	2547
adamc@821	2548 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2549 if (s[0] == 0) {
adamc@821	2550 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2551 r[0] = 0;
adamc@821	2552 return r;
adamc@821	2553 } else if (s[1] != 0)
adamc@821	2554 return NULL;
adamc@821	2555 else {
adamc@821	2556 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2557 r[0] = s[0];
adamc@821	2558 return r;
adamc@821	2559 }
adamc@821	2560 }
adamc@821	2561
adamc@311	2562 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2563 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2564 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2565
adamc@289	2566 if (!strcasecmp (s, "True"))
adamc@289	2567 return &true;
adamc@289	2568 else if (!strcasecmp (s, "False"))
adamc@289	2569 return &false;
adamc@289	2570 else
adamc@289	2571 return NULL;
adamc@289	2572 }
adamc@292	2573
adamc@436	2574 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2575 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2576 struct tm stm;
adamc@436	2577
adamc@439	2578 if (dot) {
adamc@439	2579 *dot = 0;
adamc@439	2580 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2581 *dot = '.';
adamc@439	2582 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2583 *r = mktime(&stm);
adamc@439	2584 return r;
adamc@439	2585 }
adamc@439	2586 else {
adamc@439	2587 *dot = '.';
adamc@439	2588 return NULL;
adamc@439	2589 }
adamc@436	2590 }
adamc@439	2591 else {
adamc@439	2592 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2593 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2594 *r = mktime(&stm);
adamc@439	2595 return r;
adamc@439	2596 }
adamc@439	2597 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2598 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2599 *r = mktime(&stm);
adamc@439	2600 return r;
adamc@439	2601 }
adamc@439	2602 else
adamc@439	2603 return NULL;
adamc@439	2604 }
adamc@436	2605 }
adamc@436	2606
adamc@311	2607 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2608 char *endptr;
adamc@311	2609 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2610
adamc@292	2611 if (s != '\0' && endptr == '\0')
adamc@292	2612 return n;
adamc@292	2613 else
adamc@311	2614 uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292	2615 }
adamc@293	2616
adamc@682	2617 #include <errno.h>
adamc@682	2618
adamc@678	2619 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2620 unsigned long long n;
adamc@682	2621
adamc@682	2622 if (sscanf(s, "%llu", &n) < 1)
adamc@682	2623 uw_error(ctx, FATAL, "Can't parse channel: %s", s);
adamc@682	2624 else {
adamc@682	2625 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2626 return ch;
adamc@682	2627 }
adamc@682	2628 }
adamc@682	2629
adamc@682	2630 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2631 char *endptr;
adamc@682	2632 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2633
adamc@678	2634 if (s != '\0' && endptr == '\0')
adamc@678	2635 return n;
adamc@678	2636 else
adamc@682	2637 uw_error(ctx, FATAL, "Can't parse client: %s", s);
adamc@678	2638 }
adamc@678	2639
adamc@311	2640 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2641 char *endptr;
adamc@311	2642 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2643
adamc@293	2644 if (s != '\0' && endptr == '\0')
adamc@293	2645 return n;
adamc@293	2646 else
adamc@311	2647 uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293	2648 }
adamc@293	2649
adamc@821	2650 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2651 if (s[0] == 0)
adamc@821	2652 return 0;
adamc@821	2653 else if (s[1] != 0)
adamc@821	2654 uw_error(ctx, FATAL, "Can't parse char: %s", s);
adamc@821	2655 else
adamc@821	2656 return s[0];
adamc@821	2657 }
adamc@821	2658
adamc@311	2659 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2660 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2661 return uw_Basis_True;
adamc@296	2662 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2663 return uw_Basis_False;
adamc@293	2664 else
adamc@311	2665 uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293	2666 }
adamc@436	2667
adamc@436	2668 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2669 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2670 struct tm stm = {};
adamc@436	2671
adamc@438	2672 if (dot) {
adamc@438	2673 *dot = 0;
adamc@438	2674 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2675 *dot = '.';
adamc@438	2676 return mktime(&stm);
adamc@438	2677 }
adamc@438	2678 else {
adamc@438	2679 *dot = '.';
adamc@438	2680 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2681 }
adamc@438	2682 }
adamc@438	2683 else {
adamc@439	2684 if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439	2685 return mktime(&stm);
adamc@439	2686 else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438	2687 return mktime(&stm);
adamc@438	2688 else
adamc@438	2689 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2690 }
adamc@436	2691 }
adamc@457	2692
adamc@939	2693 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adamc@939	2694 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@939	2695 struct tm stm = {};
adamc@939	2696
adamc@939	2697 if (dot) {
adamc@939	2698 *dot = 0;
adamc@939	2699 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@939	2700 *dot = '.';
adamc@939	2701 return mktime(&stm);
adamc@939	2702 }
adamc@939	2703 else {
adamc@939	2704 *dot = '.';
adamc@939	2705 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2706 }
adamc@939	2707 }
adamc@939	2708 else {
adamc@939	2709 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@939	2710 return mktime(&stm);
adamc@939	2711 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@939	2712 return mktime(&stm);
adamc@939	2713 } else
adamc@939	2714 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2715 }
adamc@939	2716 }
adamc@939	2717
adamc@742	2718 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	2719 char *r = ctx->heap.front;
adamc@742	2720 uw_Basis_blob b = {len, r};
adamc@742	2721
adamc@742	2722 uw_check_heap(ctx, len);
adamc@742	2723
adamc@742	2724 while (*s) {
adamc@742	2725 if (s[0] == '\\') {
adamc@742	2726 if (s[1] == '\\') {
adamc@742	2727 *r++ = '\\';
adamc@742	2728 s += 2;
adamc@1153	2729 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adamc@742	2730 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	2731 s += 4;
adamc@742	2732 }
adamc@742	2733 else {
adamc@742	2734 *r++ = '\\';
adamc@742	2735 ++s;
adamc@742	2736 }
adamc@742	2737 } else {
adamc@742	2738 *r++ = s[0];
adamc@742	2739 ++s;
adamc@742	2740 }
adamc@742	2741 }
adamc@742	2742
adamc@742	2743 b.size = r - ctx->heap.front;
adamc@742	2744 ctx->heap.front = r;
adamc@742	2745 return b;
adamc@742	2746 }
adamc@742	2747
adamc@1052	2748 #define THE_PAST "expires=Mon, 01-01-1970 00:00:00 GMT"
adamc@1052	2749
adamc@463	2750 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	2751 int len = strlen(c);
adamc@854	2752 char *p = ctx->outHeaders.start;
adamc@474	2753
adamc@1134	2754 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	2755 char *p2;
adamc@474	2756 p += 13;
adamc@474	2757 p2 = strchr(p, '=');
adamc@474	2758
adamc@474	2759 if (p2) {
adamc@474	2760 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	2761
adamc@474	2762 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	2763 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	2764 return NULL;
adamc@1052	2765 else {
adamc@1052	2766 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	2767 memcpy(ret, p2+1, sz);
adamc@1052	2768 ret[sz] = 0;
adamc@1052	2769 return ret;
adamc@1052	2770 }
adamc@474	2771 }
adamc@474	2772 }
adamc@474	2773 }
adamc@463	2774
adamc@1134	2775 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	2776 char *p2;
adamc@1051	2777
adamc@854	2778 while (1) {
adamc@1051	2779 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	2780 if ((p2 = strchr(p, ';'))) {
adamc@1051	2781 size_t n = p2 - (p + len);
adamc@1051	2782 char *r = uw_malloc(ctx, n);
adamc@1051	2783 memcpy(r, p + 1 + len, n-1);
adamc@1051	2784 r[n-1] = 0;
adamc@1051	2785 return r;
adamc@1051	2786 } else
adamc@1051	2787 return p + 1 + len;
adamc@1134	2788 } else if ((p = strchr(p, ';')))
adamc@854	2789 p += 2;
adamc@463	2790 else
adamc@463	2791 return NULL;
adamc@463	2792 }
adamc@463	2793 }
adamc@792	2794
adamc@792	2795 return NULL;
adamc@457	2796 }
adamc@462	2797
adamc@1050	2798 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	2799 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	2800 uw_write_header(ctx, c);
adamc@462	2801 uw_write_header(ctx, "=");
adamc@462	2802 uw_write_header(ctx, v);
adamc@466	2803 uw_write_header(ctx, "; path=");
adamc@466	2804 uw_write_header(ctx, prefix);
adamc@1050	2805 if (expires) {
adamc@1050	2806 char formatted[30];
adamc@1050	2807 struct tm tm;
adamc@1050	2808
adamc@1050	2809 gmtime_r(expires, &tm);
adamc@1050	2810
adamc@1050	2811 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	2812
adamc@1050	2813 uw_write_header(ctx, "; expires=");
adamc@1050	2814 uw_write_header(ctx, formatted);
adamc@1050	2815 }
adamc@1050	2816 if (secure)
adamc@1050	2817 uw_write_header(ctx, "; secure");
adamc@462	2818 uw_write_header(ctx, "\r\n");
adamc@462	2819
adamc@462	2820 return uw_unit_v;
adamc@462	2821 }
adamc@667	2822
adamc@1050	2823 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	2824 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	2825 uw_write_header(ctx, c);
adamc@1050	2826 uw_write_header(ctx, "=; path=");
adamc@1050	2827 uw_write_header(ctx, prefix);
adamc@1052	2828 uw_write_header(ctx, "; " THE_PAST "\r\n");
adamc@1050	2829
adamc@1050	2830 return uw_unit_v;
adamc@1050	2831 }
adamc@1050	2832
adamc@1113	2833 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	2834
adamc@682	2835 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	2836 unsigned i;
adamc@682	2837 delta *d;
adamc@671	2838
adamc@682	2839 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	2840 if (ctx->deltas[i].client == client)
adamc@682	2841 return &ctx->deltas[i];
adamc@671	2842
adamc@682	2843 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	2844 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	2845 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	2846
adamc@682	2847 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adamc@1113	2848 buf_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	2849 }
adamc@671	2850
adamc@682	2851 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	2852 d->client = client;
adamc@682	2853 buf_reset(&d->msgs);
adamc@682	2854 return d;
adamc@671	2855 }
adamc@671	2856
adamc@668	2857 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	2858 if (ctx->client == NULL)
adamc@682	2859 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	2860
adamc@682	2861 return new_channel(ctx->client);
adamc@668	2862 }
adamc@668	2863
adamc@668	2864 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	2865 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	2866 size_t len;
adamc@682	2867 int preLen;
adamc@682	2868 char pre[INTS_MAX + 2];
adamc@668	2869
adamc@682	2870 len = strlen(msg);
adamc@682	2871
adamc@682	2872 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	2873
adamc@1113	2874 ctx_buf_append(ctx, "messages", &d->msgs, pre, preLen);
adamc@1113	2875 ctx_buf_append(ctx, "messages", &d->msgs, msg, len);
adamc@1113	2876 ctx_buf_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	2877
adamc@671	2878 return uw_unit_v;
adamc@668	2879 }
adamc@671	2880
adamc@1131	2881 int uw_rollback(uw_context ctx) {
adamc@1131	2882 int i;
adamc@1131	2883 cleanup *cl;
adamc@1131	2884
adamc@1131	2885 if (ctx->client)
adamc@1131	2886 release_client(ctx->client);
adamc@1131	2887
adamc@1131	2888 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	2889 cl->func(cl->arg);
adamc@1131	2890
adamc@1131	2891 ctx->cleanup_front = ctx->cleanup;
adamc@1131	2892
adamc@1131	2893 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	2894 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	2895 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	2896
adamc@1131	2897 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	2898 if (ctx->transactionals[i].free)
adamc@1131	2899 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@1131	2900
adamc@1144	2901 return ctx->app ? ctx->app->db_rollback(ctx) : 0;
adamc@1131	2902 }
adamc@1131	2903
adamc@671	2904 void uw_commit(uw_context ctx) {
adamc@1104	2905 int i;
adamc@1104	2906
adamc@1131	2907 if (uw_has_error(ctx)) {
adamc@1131	2908 uw_rollback(ctx);
adamc@1131	2909 return;
adamc@1131	2910 }
adamc@1131	2911
adamc@1104	2912 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	2913 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	2914 if (ctx->transactionals[i].commit) {
adamc@1083	2915 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	2916 if (uw_has_error(ctx)) {
adamc@1131	2917 uw_rollback(ctx);
adamc@1131	2918 return;
adamc@1131	2919 }
adamc@1131	2920 }
adamc@771	2921
adamc@1104	2922 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	2923 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	2924 if (ctx->transactionals[i].commit) {
adamc@1083	2925 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	2926 if (uw_has_error(ctx)) {
adamc@1131	2927 uw_rollback(ctx);
adamc@1131	2928 return;
adamc@1131	2929 }
adamc@1131	2930 }
adamc@1131	2931
adamc@1131	2932 if (ctx->app->db_commit(ctx)) {
adamc@1131	2933 uw_set_error_message(ctx, "Error running SQL COMMIT");
adamc@1131	2934 return;
adamc@1131	2935 }
adamc@682	2936
adamc@682	2937 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	2938 delta *d = &ctx->deltas[i];
adamc@682	2939 client *c = find_client(d->client);
adamc@682	2940
adamc@682	2941 assert (c != NULL && c->mode == USED);
adamc@682	2942
adamc@685	2943 client_send(c, &d->msgs);
adamc@682	2944 }
adamc@682	2945
adamc@682	2946 if (ctx->client)
adamc@685	2947 release_client(ctx->client);
adamc@771	2948
adamc@1104	2949 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	2950 if (ctx->transactionals[i].free)
adamc@1083	2951 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@916	2952
adamc@916	2953 // Splice script data into appropriate part of page
adamc@1065	2954 if (ctx->returning_indirectly \|\| ctx->script_header[0] == 0) {
adamc@995	2955 char *start = strstr(ctx->page.start, "<sc>");
adamc@995	2956 if (start) {
adamc@995	2957 memmove(start, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 4);
adamc@995	2958 ctx->page.front -= 4;
adamc@995	2959 }
adamc@995	2960 } else if (buf_used(&ctx->script) == 0) {
adamc@916	2961 size_t len = strlen(ctx->script_header);
adamc@916	2962 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2963 if (start) {
adamc@1113	2964 ctx_buf_check(ctx, "page", &ctx->page, buf_used(&ctx->page) - 4 + len);
adamc@917	2965 start = strstr(ctx->page.start, "<sc>");
adamc@916	2966 memmove(start + len, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2967 ctx->page.front += len - 4;
adamc@916	2968 memcpy(start, ctx->script_header, len);
adamc@916	2969 }
adamc@916	2970 } else {
adamc@916	2971 size_t lenH = strlen(ctx->script_header), len = buf_used(&ctx->script);
adamc@916	2972 size_t lenP = lenH + 40 + len;
adamc@916	2973 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2974 if (start) {
adamc@1113	2975 ctx_buf_check(ctx, "page", &ctx->page, buf_used(&ctx->page) - 4 + lenP);
adamc@917	2976 start = strstr(ctx->page.start, "<sc>");
adamc@916	2977 memmove(start + lenP, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2978 ctx->page.front += lenP - 4;
adamc@916	2979 memcpy(start, ctx->script_header, lenH);
adamc@916	2980 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916	2981 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916	2982 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916	2983 }
adamc@916	2984 }
adamc@671	2985 }
adamc@671	2986
adamc@683	2987
adamc@1113	2988 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	2989
adamc@771	2990 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adamc@771	2991 uw_callback free) {
adamc@771	2992 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	2993 if (ctx->used_transactionals+1 > uw_transactionals_max)
adamc@1113	2994 uw_error(ctx, FATAL, "Exceeded limit on number of transactionals");
adamc@1084	2995 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	2996 ++ctx->n_transactionals;
adamc@771	2997 }
adamc@771	2998
adamc@771	2999 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3000 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3001 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3002 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	3003 }
adamc@771	3004
adamc@683	3005
adamc@683	3006 // "Garbage collection"
adamc@683	3007
adamc@1121	3008 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3009 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3010
adamc@1121	3011 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3012 int r = setjmp(ctx->jmp_buf);
adamc@683	3013
adamc@1121	3014 if (r == 0)
adamc@1121	3015 uw_do_expunge(ctx, cli, data);
adamc@1121	3016 else
adamc@1121	3017 ctx->app->db_rollback(ctx);
adamc@1121	3018
adamc@1121	3019 uw_post_expunge(ctx, data);
adamc@683	3020
adamc@683	3021 return r;
adamc@683	3022 }
adamc@683	3023
adamc@683	3024 void uw_prune_clients(uw_context ctx) {
adamc@683	3025 client c, next, *prev = NULL;
adamc@683	3026 time_t cutoff;
adamc@683	3027
adamc@1094	3028 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3029
adamc@683	3030 pthread_mutex_lock(&clients_mutex);
adamc@683	3031
adamc@683	3032 for (c = clients_used; c; c = next) {
adamc@683	3033 next = c->next;
adamc@683	3034 pthread_mutex_lock(&c->lock);
adamc@685	3035 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3036 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3037 if (prev)
adamc@683	3038 prev->next = next;
adamc@683	3039 else
adamc@683	3040 clients_used = next;
adamc@684	3041 uw_reset(ctx);
adamc@683	3042 while (fk == UNLIMITED_RETRY) {
adamc@1121	3043 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3044 if (fk == UNLIMITED_RETRY)
adamc@684	3045 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3046 }
adamc@684	3047 if (fk == SUCCESS)
adamc@684	3048 free_client(c);
adamc@1121	3049 else
adamc@856	3050 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3051 }
adamc@683	3052 else
adamc@683	3053 prev = c;
adamc@683	3054 pthread_mutex_unlock(&c->lock);
adamc@683	3055 }
adamc@683	3056
adamc@683	3057 pthread_mutex_unlock(&clients_mutex);
adamc@683	3058 }
adamc@687	3059
adamc@687	3060 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3061 int r = setjmp(ctx->jmp_buf);
adamc@687	3062
adamc@687	3063 if (r == 0) {
adamc@1094	3064 if (ctx->app->db_begin(ctx))
adamc@687	3065 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@1094	3066 ctx->app->initializer(ctx);
adamc@1094	3067 if (ctx->app->db_commit(ctx))
adamc@687	3068 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3069 }
adamc@687	3070
adamc@687	3071 return r;
adamc@687	3072 }
adamc@717	3073
adamc@1065	3074 static int url_bad(uw_Basis_string s) {
adamc@1065	3075 for (; *s; ++s)
adamc@1153	3076 if (!isgraph((int)*s))
adamc@1065	3077 return 1;
adamc@1065	3078
adamc@1065	3079 return 0;
adamc@1065	3080 }
adamc@1065	3081
adamc@717	3082 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3083 if (url_bad(s))
adamc@1065	3084 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3085 if (ctx->app->check_url(s))
adamc@770	3086 return s;
adamc@770	3087 else
adamc@770	3088 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3089 }
adamc@734	3090
adamc@770	3091 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3092 if (url_bad(s))
adamc@1065	3093 return NULL;
adamc@1094	3094 if (ctx->app->check_url(s))
adamc@770	3095 return s;
adamc@770	3096 else
adamc@770	3097 return NULL;
adamc@770	3098 }
adamc@770	3099
adamc@770	3100 int mime_format(const char *s) {
adamc@770	3101 for (; *s; ++s)
adamc@1153	3102 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.')
adamc@770	3103 return 0;
adamc@770	3104
adamc@770	3105 return 1;
adamc@770	3106 }
adamc@770	3107
adamc@741	3108 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3109 if (!mime_format(s))
adamc@770	3110 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3111
adamc@1094	3112 if (ctx->app->check_mime(s))
adamc@770	3113 return s;
adamc@770	3114 else
adamc@770	3115 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3116 }
adamc@770	3117
adamc@770	3118 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3119 if (!mime_format(s))
adamc@770	3120 return NULL;
adamc@770	3121
adamc@1094	3122 if (ctx->app->check_mime(s))
adamc@770	3123 return s;
adamc@770	3124 else
adamc@770	3125 return NULL;
adamc@741	3126 }
adamc@741	3127
adamc@734	3128 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3129 return s ? s : "";
adamc@734	3130 }
adamc@734	3131
adamc@734	3132 extern int uw_hash_blocksize;
adamc@734	3133
adamc@734	3134 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3135 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3136 int i;
adamc@734	3137
adamc@734	3138 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3139 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3140
adamc@734	3141 return r;
adamc@734	3142 }
adamc@734	3143
adamc@734	3144 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@1094	3145 return ctx->app->cookie_sig(ctx);
adamc@734	3146 }
adamc@737	3147
adamc@737	3148 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3149 return f.name;
adamc@737	3150 }
adamc@737	3151
adamc@740	3152 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3153 return f.type;
adamc@740	3154 }
adamc@740	3155
adamc@745	3156 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3157 return b.size;
adamc@745	3158 }
adamc@745	3159
adamc@1119	3160 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3161 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3162
adamc@1119	3163 return b;
adamc@1119	3164 }
adamc@1119	3165
adamc@737	3166 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3167 return f.data;
adamc@737	3168 }
adamc@741	3169
adamc@741	3170 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3171 cleanup *cl;
adamc@741	3172 int len;
adamc@741	3173
adamc@1065	3174 ctx->returning_indirectly = 1;
adamc@741	3175 buf_reset(&ctx->outHeaders);
adamc@741	3176 buf_reset(&ctx->page);
adamc@741	3177
adamc@856	3178 uw_write_header(ctx, on_success);
adamc@856	3179 uw_write_header(ctx, "Content-Type: ");
adamc@741	3180 uw_write_header(ctx, mimeType);
adamc@741	3181 uw_write_header(ctx, "\r\nContent-Length: ");
adamc@1113	3182 ctx_buf_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3183 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3184 ctx->outHeaders.front += len;
adamc@1066	3185 uw_write_header(ctx, "\r\n");
adamc@741	3186
adamc@1113	3187 ctx_buf_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3188
adamc@741	3189 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3190 cl->func(cl->arg);
adamc@741	3191
adamc@741	3192 ctx->cleanup_front = ctx->cleanup;
adamc@741	3193
adamc@1065	3194 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3195 }
adamc@1065	3196
adamc@1065	3197 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3198 cleanup *cl;
adamc@1066	3199 char *s;
adamc@1065	3200
adamc@1065	3201 ctx->returning_indirectly = 1;
adamc@1066	3202 buf_reset(&ctx->page);
adamc@1113	3203 ctx_buf_check(ctx, "page", &ctx->page, buf_used(&ctx->outHeaders)+1);
adamc@1066	3204 memcpy(ctx->page.start, ctx->outHeaders.start, buf_used(&ctx->outHeaders));
adamc@1066	3205 ctx->page.start[buf_used(&ctx->outHeaders)] = 0;
adamc@1065	3206 buf_reset(&ctx->outHeaders);
adamc@1065	3207
adamc@1065	3208 uw_write_header(ctx, on_redirect);
adamc@1066	3209
adamc@1066	3210 s = strchr(ctx->page.start, '\n');
adamc@1066	3211 if (s) {
adamc@1066	3212 char *s2;
adamc@1134	3213 for (++s; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3214 *s2 = 0;
adamc@1066	3215 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3216 uw_write_header(ctx, s);
adamc@1066	3217 uw_write_header(ctx, "\n");
adamc@1066	3218 }
adamc@1066	3219 }
adamc@1066	3220 }
adamc@1066	3221
adamc@1065	3222 uw_write_header(ctx, "Location: ");
adamc@1065	3223 uw_write_header(ctx, url);
adamc@1065	3224 uw_write_header(ctx, "\r\n\r\n");
adamc@1065	3225
adamc@1065	3226 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3227 cl->func(cl->arg);
adamc@1065	3228
adamc@1065	3229 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3230
adamc@1065	3231 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3232 }
adamc@874	3233
adamc@874	3234 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adamc@874	3235 uw_Basis_string r = uw_malloc(ctx, strlen(s) + 1);
adamc@874	3236
adamc@874	3237 for (; *s; ++s) {
adamc@874	3238 if (s[0] == '\'') {
adamc@874	3239 *r++ = '\'';
adamc@874	3240 for (++s; *s; ++s) {
adamc@874	3241 if (s[0] == '\'') {
adamc@874	3242 *r++ = '\'';
adamc@874	3243 break;
adamc@874	3244 } else if (s[0] == '\\') {
adamc@874	3245 if (s[1] == '\\') {
adamc@874	3246 *r++ = '\\';
adamc@874	3247 *r++ = '\\';
adamc@874	3248 ++s;
adamc@874	3249 } else if (s[1] == '\'') {
adamc@874	3250 *r++ = '\\';
adamc@874	3251 *r++ = '\'';
adamc@874	3252 ++s;
adamc@874	3253 } else
adamc@874	3254 *r++ = '\'';
adamc@874	3255 } else
adamc@874	3256 *r++ = s[0];
adamc@874	3257 }
adamc@874	3258 if (*s == 0) break;
adamc@874	3259 } else if (s[0] == 'T' && s[1] == '.')
adamc@874	3260 ++s;
adamc@874	3261 else
adamc@874	3262 *r++ = s[0];
adamc@874	3263 }
adamc@874	3264
adamc@874	3265 return r;
adamc@874	3266 }
adamc@874	3267
adamc@922	3268 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3269 va_list ap;
adamc@922	3270 size_t len = 1;
adamc@922	3271 char s, r, *s2;
adamc@922	3272
adamc@922	3273 va_start(ap, ctx);
adamc@922	3274 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3275 len += strlen(s);
adamc@922	3276 va_end(ap);
adamc@922	3277
adamc@922	3278 r = uw_malloc(ctx, len);
adamc@922	3279 va_start(ap, ctx);
adamc@922	3280 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3281 while (*s)
adamc@922	3282 s2++ = s++;
adamc@922	3283 va_end(ap);
adamc@922	3284 *s2 = 0;
adamc@922	3285
adamc@922	3286 return r;
adamc@922	3287 }
adamc@1006	3288
adamc@1050	3289 const uw_Basis_time minTime = 0;
adamc@1050	3290
adamc@1006	3291 uw_Basis_time uw_Basis_now(uw_context ctx) {
adamc@1006	3292 return time(NULL);
adamc@1006	3293 }
adamc@1061	3294
adamc@1138	3295 uw_Basis_time uw_Basis_minusSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adamc@1138	3296 return tm - n;
adamc@1138	3297 }
adamc@1138	3298
adamc@1061	3299 void uw_get_global(uw_context ctx, char name) {
adamc@1061	3300 int i;
adamc@1061	3301
adamc@1061	3302 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3303 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	3304 return ctx->globals[i].data;
adamc@1061	3305
adamc@1061	3306 return NULL;
adamc@1061	3307 }
adamc@1061	3308
adamc@1113	3309 size_t uw_globals_max = SIZE_MAX;
adamc@1113	3310
adamc@1061	3311 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	3312 int i;
adamc@1061	3313
adamc@1061	3314 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3315 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	3316 if (ctx->globals[i].free)
adamc@1061	3317 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	3318 ctx->globals[i].data = data;
adamc@1061	3319 ctx->globals[i].free = free;
adamc@1061	3320 return;
adamc@1061	3321 }
adamc@1089	3322
adamc@1113	3323 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	3324 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	3325
adamc@1061	3326 ++ctx->n_globals;
adamc@1061	3327 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	3328 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	3329 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	3330 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	3331 }
adamc@1061	3332
adamc@1061	3333 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	3334 return !!isalnum((int)c);
adamc@1061	3335 }
adamc@1061	3336
adamc@1061	3337 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	3338 return !!isalpha((int)c);
adamc@1061	3339 }
adamc@1061	3340
adamc@1061	3341 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	3342 return !!isblank((int)c);
adamc@1061	3343 }
adamc@1061	3344
adamc@1061	3345 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	3346 return !!iscntrl((int)c);
adamc@1061	3347 }
adamc@1061	3348
adamc@1061	3349 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3350 return !!isdigit((int)c);
adamc@1061	3351 }
adamc@1061	3352
adamc@1061	3353 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	3354 return !!isgraph((int)c);
adamc@1061	3355 }
adamc@1061	3356
adamc@1061	3357 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3358 return !!islower((int)c);
adamc@1061	3359 }
adamc@1061	3360
adamc@1061	3361 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	3362 return !!isprint((int)c);
adamc@1061	3363 }
adamc@1061	3364
adamc@1061	3365 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	3366 return !!ispunct((int)c);
adamc@1061	3367 }
adamc@1061	3368
adamc@1061	3369 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	3370 return !!isspace((int)c);
adamc@1061	3371 }
adamc@1063	3372
adamc@1061	3373 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3374 return !!isupper((int)c);
adamc@1061	3375 }
adamc@1061	3376
adamc@1061	3377 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3378 return !!isxdigit((int)c);
adamc@1061	3379 }
adamc@1061	3380
adamc@1061	3381 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3382 return tolower((int)c);
adamc@1061	3383 }
adamc@1061	3384
adamc@1061	3385 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3386 return toupper((int)c);
adamc@1061	3387 }
adamc@1066	3388
adamc@1128	3389 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	3390 return (unsigned char)c;
adamc@1128	3391 }
adamc@1128	3392
adamc@1128	3393 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	3394 return n;
adamc@1128	3395 }
adamc@1128	3396
adamc@1066	3397 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	3398 return ctx->current_url;
adamc@1066	3399 }
adamc@1066	3400
adamc@1066	3401 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	3402 ctx->current_url = s;
adamc@1066	3403 }
adamc@1114	3404
adamc@1114	3405 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	3406 ctx->deadline = n;
adamc@1114	3407 }
adamc@1114	3408
adamc@1114	3409 void uw_check_deadline(uw_context ctx) {
adamc@1114	3410 if (uw_time > ctx->deadline)
adamc@1114	3411 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	3412 }
adamc@1115	3413
adamc@1115	3414 size_t uw_database_max = SIZE_MAX;
adamc@1120	3415
adamc@1120	3416 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
adamc@1120	3417 fprintf(stderr, "%s\n", s);
adamc@1120	3418
adamc@1120	3419 return uw_unit_v;
adamc@1120	3420 }
adamc@1250	3421
adamc@1250	3422 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adamc@1250	3423 uw_Basis_int n = abs(rand());
adamc@1250	3424 return n;
adamc@1250	3425 }

Mercurial > urweb

annotate src/c/urweb.c @ 1278:cd8d2c73ccf4