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

annotate src/c/urweb.c @ 1332:4dd5d23bace2

minHeap option in .urp files

author	Adam Chlipala <adam@chlipala.net>
date	Sat, 11 Dec 2010 15:16:04 -0500
parents	452b14d88a10
children	a1aa62b472cf

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
adam@1332	351 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114	352
adamc@668	353
adamc@667	354 // Single-request state
adamc@667	355
adamc@323	356 typedef struct regions {
adamc@323	357 struct regions *next;
adamc@323	358 } regions;
adamc@323	359
adamc@425	360 typedef struct {
adamc@425	361 void (func)(void);
adamc@425	362 void *arg;
adamc@425	363 } cleanup;
adamc@425	364
adamc@671	365 typedef struct {
adamc@682	366 unsigned client;
adamc@671	367 buf msgs;
adamc@682	368 } delta;
adamc@671	369
adamc@737	370 typedef enum {
adamc@759	371 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	372 } input_kind;
adamc@737	373
adamc@756	374 typedef struct input {
adamc@737	375 input_kind kind;
adamc@737	376 union {
adamc@737	377 char *normal;
adamc@739	378 uw_Basis_file file;
adamc@756	379 struct {
adamc@759	380 struct input fields, parent;
adamc@756	381 } subform;
adamc@759	382 struct {
adamc@759	383 struct input entries, parent;
adamc@759	384 } subforms;
adamc@759	385 struct {
adamc@759	386 struct input fields, next, *parent;
adamc@759	387 } entry;
adamc@737	388 } data;
adamc@737	389 } input;
adamc@737	390
adamc@771	391 typedef struct {
adamc@771	392 void *data;
adam@1327	393 uw_callback commit, rollback;
adam@1327	394 uw_callback_with_retry free;
adamc@771	395 } transactional;
adamc@771	396
adamc@1061	397 typedef struct {
adamc@1061	398 char *name;
adamc@1061	399 void *data;
adamc@1061	400 void (free)(void);
adamc@1061	401 } global;
adamc@1061	402
adamc@311	403 struct uw_context {
adamc@1094	404 uw_app *app;
adamc@1094	405
adamc@854	406 char (get_header)(void , const char );
adamc@854	407 void *get_header_data;
adamc@457	408
adamc@666	409 buf outHeaders, page, heap, script;
adamc@1065	410 int returning_indirectly;
adamc@759	411 input inputs, subinputs, *cur_container;
adamc@1094	412 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	413
adamc@565	414 int source_count;
adamc@562	415
adamc@272	416 void *db;
adamc@272	417
adamc@167	418 jmp_buf jmp_buf;
adamc@167	419
adamc@323	420 regions *regions;
adamc@323	421
adamc@425	422 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	423
adamc@1094	424 const char *script_header;
adamc@643	425
adamc@736	426 int needs_push, needs_sig;
adamc@693	427
adamc@682	428 size_t n_deltas, used_deltas;
adamc@682	429 delta *deltas;
adamc@671	430
adamc@682	431 client *client;
adamc@682	432
adamc@771	433 transactional *transactionals;
adamc@771	434 size_t n_transactionals, used_transactionals;
adamc@771	435
adamc@1061	436 global *globals;
adamc@1061	437 size_t n_globals;
adamc@1061	438
adamc@1066	439 char *current_url;
adamc@1066	440
adamc@1114	441 int deadline;
adamc@1114	442
adamc@1121	443 void *client_data;
adamc@1121	444
adamc@167	445 char error_message[ERROR_BUF_LEN];
adamc@117	446 };
adamc@117	447
adamc@1113	448 size_t uw_headers_max = SIZE_MAX;
adamc@1113	449 size_t uw_page_max = SIZE_MAX;
adamc@1113	450 size_t uw_heap_max = SIZE_MAX;
adamc@1113	451 size_t uw_script_max = SIZE_MAX;
adamc@1113	452
adamc@687	453 uw_context uw_init() {
adamc@311	454 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	455
adamc@1094	456 ctx->app = NULL;
adamc@1094	457
adamc@854	458 ctx->get_header = NULL;
adamc@854	459 ctx->get_header_data = NULL;
adamc@457	460
adamc@1113	461 buf_init(uw_headers_max, &ctx->outHeaders, 0);
adamc@1113	462 buf_init(uw_page_max, &ctx->page, 0);
adamc@1065	463 ctx->returning_indirectly = 0;
adam@1332	464 buf_init(uw_heap_max, &ctx->heap, uw_min_heap);
adamc@1113	465 buf_init(uw_script_max, &ctx->script, 1);
adamc@667	466 ctx->script.start[0] = 0;
adamc@136	467
adamc@1094	468 ctx->inputs = malloc(0);
adamc@759	469 ctx->cur_container = NULL;
adamc@756	470 ctx->subinputs = malloc(0);
adamc@1094	471 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	472
adamc@272	473 ctx->db = NULL;
adamc@272	474
adamc@323	475 ctx->regions = NULL;
adamc@323	476
adamc@425	477 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	478
adamc@643	479 ctx->script_header = "";
adamc@693	480 ctx->needs_push = 0;
adamc@736	481 ctx->needs_sig = 0;
adamc@1104	482
adamc@565	483 ctx->source_count = 0;
adamc@562	484
adamc@682	485 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	486 ctx->deltas = malloc(0);
adamc@671	487
adamc@700	488 ctx->client = NULL;
adamc@700	489
adamc@700	490 ctx->error_message[0] = 0;
adamc@700	491
adamc@771	492 ctx->transactionals = malloc(0);
adamc@771	493 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	494
adamc@1061	495 ctx->globals = malloc(0);
adamc@1061	496 ctx->n_globals = 0;
adamc@1061	497
adamc@1066	498 ctx->current_url = "";
adamc@1066	499
adamc@1114	500 ctx->deadline = INT_MAX;
adamc@1114	501
adamc@1121	502 ctx->client_data = uw_init_client_data();
adamc@1121	503
adamc@117	504 return ctx;
adamc@106	505 }
adamc@106	506
adamc@1113	507 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	508
adamc@1121	509 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	510 return ctx->app;
adamc@1121	511 }
adamc@1121	512
adamc@1113	513 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	514 ctx->app = app;
adamc@1094	515
adamc@1105	516 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	517 if (app->inputs_len > uw_inputs_max)
adamc@1113	518 return 1;
adamc@1113	519
adamc@1094	520 ctx->sz_inputs = app->inputs_len;
adamc@1094	521 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	522 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	523 }
adamc@1134	524
adamc@1134	525 return 0;
adamc@1094	526 }
adamc@1094	527
adamc@1121	528 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	529 uw_copy_client_data(ctx->client_data, data);
adamc@1121	530 }
adamc@1121	531
adamc@311	532 void uw_set_db(uw_context ctx, void *db) {
adamc@272	533 ctx->db = db;
adamc@272	534 }
adamc@272	535
adamc@311	536 void *uw_get_db(uw_context ctx) {
adamc@272	537 return ctx->db;
adamc@272	538 }
adamc@272	539
adamc@311	540 void uw_free(uw_context ctx) {
adamc@671	541 size_t i;
adamc@671	542
adamc@666	543 buf_free(&ctx->outHeaders);
adamc@666	544 buf_free(&ctx->script);
adamc@666	545 buf_free(&ctx->page);
adamc@666	546 buf_free(&ctx->heap);
adamc@144	547 free(ctx->inputs);
adamc@756	548 free(ctx->subinputs);
adamc@425	549 free(ctx->cleanup);
adamc@771	550 free(ctx->transactionals);
adamc@1121	551 uw_free_client_data(ctx->client_data);
adamc@671	552
adamc@682	553 for (i = 0; i < ctx->n_deltas; ++i)
adamc@671	554 buf_free(&ctx->deltas[i].msgs);
marco-oweber@1330	555 free(ctx->deltas);
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);
marco-oweber@1330	560 free(ctx->globals);
adamc@1061	561
adamc@136	562 free(ctx);
adamc@136	563 }
adamc@136	564
adamc@562	565 void uw_reset_keep_error_message(uw_context ctx) {
adamc@666	566 buf_reset(&ctx->outHeaders);
adamc@666	567 buf_reset(&ctx->script);
adamc@667	568 ctx->script.start[0] = 0;
adamc@666	569 buf_reset(&ctx->page);
adamc@1065	570 ctx->returning_indirectly = 0;
adamc@666	571 buf_reset(&ctx->heap);
adamc@323	572 ctx->regions = NULL;
adamc@425	573 ctx->cleanup_front = ctx->cleanup;
adamc@565	574 ctx->source_count = 0;
adamc@682	575 ctx->used_deltas = 0;
adamc@682	576 ctx->client = NULL;
adamc@759	577 ctx->cur_container = NULL;
adamc@771	578 ctx->used_transactionals = 0;
adamc@1117	579 ctx->script_header = "";
adamc@167	580 }
adamc@167	581
adamc@562	582 void uw_reset_keep_request(uw_context ctx) {
adamc@562	583 uw_reset_keep_error_message(ctx);
adamc@562	584 ctx->error_message[0] = 0;
adamc@167	585 }
adamc@167	586
adamc@311	587 void uw_reset(uw_context ctx) {
adamc@311	588 uw_reset_keep_request(ctx);
adamc@1105	589 if (ctx->app)
adamc@1105	590 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	591 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adamc@756	592 ctx->used_subinputs = 0;
adamc@144	593 }
adamc@144	594
adamc@311	595 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	596 int r = setjmp(ctx->jmp_buf);
adamc@272	597
adamc@1105	598 if (r == 0 && ctx->app)
adamc@1094	599 ctx->app->db_init(ctx);
adamc@272	600
adamc@272	601 return r;
adamc@272	602 }
adamc@272	603
adamc@1118	604 void uw_close(uw_context ctx) {
adamc@1118	605 ctx->app->db_close(ctx);
adamc@1118	606 }
adamc@1118	607
adamc@854	608 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	609 ctx->get_header = get_header;
adamc@854	610 ctx->get_header_data = get_header_data;
adamc@742	611 }
adamc@742	612
adamc@801	613 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	614 va_list ap;
adamc@801	615 va_start(ap, fmt);
adamc@801	616
adamc@801	617 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	618 }
adamc@801	619
adamc@1131	620 int uw_has_error(uw_context ctx) {
adamc@1131	621 return ctx->error_message[0] != 0;
adamc@1131	622 }
adamc@1131	623
adamc@311	624 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	625 cleanup *cl;
adamc@425	626
adamc@167	627 va_list ap;
adamc@167	628 va_start(ap, fmt);
adamc@167	629
adamc@167	630 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	631
adamc@425	632 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	633 cl->func(cl->arg);
adamc@425	634
adamc@425	635 ctx->cleanup_front = ctx->cleanup;
adamc@425	636
adamc@190	637 longjmp(ctx->jmp_buf, fk);
adamc@167	638 }
adamc@167	639
adamc@1113	640 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	641
adamc@425	642 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	643 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	644 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	645 if (len == 0)
adamc@425	646 newLen = 1;
adamc@425	647 else
adamc@428	648 newLen = len * 2;
adamc@1113	649
adamc@1134	650 if (newLen > uw_cleanup_max) {
adamc@1113	651 if (len+1 <= uw_cleanup_max)
adamc@1113	652 newLen = uw_cleanup_max;
adamc@1113	653 else
adamc@1113	654 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	655 }
adamc@1113	656
adamc@470	657 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	658 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	659 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	660 }
adamc@425	661
adamc@425	662 ctx->cleanup_front->func = func;
adamc@425	663 ctx->cleanup_front->arg = arg;
adamc@425	664 ++ctx->cleanup_front;
adamc@425	665 }
adamc@425	666
adamc@682	667 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adamc@854	668 return ctx->get_header(ctx->get_header_data, h);
adamc@682	669 }
adamc@682	670
adamc@682	671 void uw_login(uw_context ctx) {
adamc@693	672 if (ctx->needs_push) {
adamc@682	673 char id_s, pass_s;
adamc@682	674
adamc@682	675 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682	676 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682	677 unsigned id = atoi(id_s);
adamc@682	678 int pass = atoi(pass_s);
adamc@682	679 client *c = find_client(id);
adamc@682	680
adamc@682	681 if (c == NULL)
adamc@682	682 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", id_s, pass_s);
adamc@682	683 else {
adamc@685	684 use_client(c);
adamc@682	685 ctx->client = c;
adamc@682	686
adamc@682	687 if (c->mode != USED)
adamc@682	688 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682	689 if (c->pass != pass)
adamc@682	690 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682	691 }
adamc@682	692 } else {
adamc@682	693 client *c = new_client();
adamc@1113	694
adamc@1113	695 if (c == NULL)
adamc@1113	696 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adamc@1113	697
adamc@685	698 use_client(c);
adamc@1121	699 uw_copy_client_data(c->data, ctx->client_data);
adamc@682	700 ctx->client = c;
adamc@864	701 }
adamc@682	702 }
adamc@682	703 }
adamc@682	704
adamc@671	705 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	706 int r = setjmp(ctx->jmp_buf);
adamc@671	707
adamc@671	708 if (r == 0) {
adamc@1094	709 if (ctx->app->db_begin(ctx))
adamc@671	710 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adamc@682	711
adamc@1094	712 ctx->app->handle(ctx, path);
adamc@671	713 }
adamc@671	714
adamc@671	715 return r;
adamc@671	716 }
adamc@671	717
adam@1294	718 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1294	719 int r = setjmp(ctx->jmp_buf);
adam@1294	720
adam@1294	721 if (ctx->app->on_error) {
adam@1294	722 if (r == 0) {
adam@1294	723 if (ctx->app->db_begin(ctx))
adam@1294	724 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1294	725
adam@1294	726 ctx->app->on_error(ctx, msg);
adam@1294	727 }
adam@1294	728
adam@1294	729 return r;
adam@1294	730 } else
adam@1294	731 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1294	732 }
adam@1294	733
adamc@772	734 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	735 if (ctx->client == NULL)
adamc@682	736 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	737
adamc@682	738 return ctx->client->id;
adamc@682	739 }
adamc@682	740
adamc@425	741 void uw_pop_cleanup(uw_context ctx) {
adamc@425	742 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	743 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	744
adamc@425	745 --ctx->cleanup_front;
adamc@425	746 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	747 }
adamc@425	748
adamc@311	749 char *uw_error_message(uw_context ctx) {
adamc@167	750 return ctx->error_message;
adamc@167	751 }
adamc@167	752
adamc@1115	753 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	754 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	755 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	756 }
adamc@1115	757
adamc@759	758 static input *INP(uw_context ctx) {
adamc@759	759 if (ctx->cur_container == NULL)
adamc@759	760 return ctx->inputs;
adamc@759	761 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	762 return ctx->cur_container->data.subform.fields;
adamc@759	763 else if (ctx->cur_container->kind == ENTRY)
adamc@759	764 return ctx->cur_container->data.entry.fields;
adamc@759	765 else
adamc@760	766 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	767 }
adamc@759	768
adamc@760	769 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	770 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	771 *ptr += new_start - old_start;
adamc@760	772 }
adamc@760	773
adamc@760	774 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	775 switch (x->kind) {
adamc@759	776 case SUBFORM:
adamc@760	777 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	778 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	779 break;
adamc@759	780 case SUBFORMS:
adamc@760	781 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	782 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	783 break;
adamc@759	784 case ENTRY:
adamc@760	785 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	786 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	787 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	788 break;
adamc@1134	789 default:
adamc@1134	790 break;
adamc@759	791 }
adamc@759	792 }
adamc@759	793
adamc@1113	794 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	795
adamc@759	796 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	797 size_t i;
adamc@759	798 input *r;
adamc@759	799
adamc@759	800 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	801 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	802 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	803
adamc@759	804 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	805
adamc@760	806 if (ctx->subinputs != new_subinputs) {
adamc@760	807 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	808 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	809 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	810 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	811
adamc@760	812 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	813
adamc@760	814 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	815 ctx->subinputs = new_subinputs;
adamc@760	816 }
adamc@759	817 }
adamc@759	818
adamc@759	819 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	820
adamc@759	821 for (i = 0; i < len; ++i)
adamc@759	822 ctx->subinputs[ctx->used_subinputs++].kind = UNUSED;
adamc@759	823
adamc@759	824 return r;
adamc@759	825 }
adamc@756	826
adamc@801	827 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	828 //printf("Input name %s\n", name);
adamc@1038	829
adamc@756	830 if (!strcasecmp(name, ".b")) {
adamc@1094	831 int n = ctx->app->input_num(value);
adamc@756	832 input *inps;
adamc@756	833
adamc@801	834 if (n < 0) {
adamc@801	835 uw_set_error(ctx, "Bad subform name %s", value);
adamc@801	836 return -1;
adamc@801	837 }
adamc@801	838
adamc@1094	839 if (n >= ctx->app->inputs_len) {
adamc@801	840 uw_set_error(ctx, "For subform name %s, index %d is out of range", value, n);
adamc@801	841 return -1;
adamc@801	842 }
adamc@756	843
adamc@1094	844 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	845
adamc@759	846 INP(ctx)[n].kind = SUBFORM;
adamc@759	847 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	848 INP(ctx)[n].data.subform.fields = inps;
adamc@759	849 ctx->cur_container = &INP(ctx)[n];
adamc@756	850 } else if (!strcasecmp(name, ".e")) {
adamc@756	851 input *tmp;
adamc@756	852
adamc@801	853 if (ctx->cur_container == NULL) {
adamc@801	854 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	855 return -1;
adamc@801	856 }
adamc@756	857
adamc@759	858 tmp = ctx->cur_container;
adamc@759	859 switch (tmp->kind) {
adamc@759	860 case SUBFORM:
adamc@759	861 ctx->cur_container = tmp->data.subform.parent;
adamc@759	862 tmp->data.subform.parent = NULL;
adamc@759	863 break;
adamc@759	864 case SUBFORMS:
adamc@759	865 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	866 tmp->data.subforms.parent = NULL;
adamc@759	867 break;
adamc@759	868 case ENTRY:
adamc@759	869 ctx->cur_container = tmp->data.entry.parent;
adamc@759	870 break;
adamc@759	871 default:
adamc@801	872 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	873 return -1;
adamc@759	874 }
adamc@759	875 } else if (!strcasecmp(name, ".s")) {
adamc@1094	876 int n = ctx->app->input_num(value);
adamc@759	877
adamc@801	878 if (n < 0) {
adamc@801	879 uw_set_error(ctx, "Bad subforms name %s", value);
adamc@801	880 return -1;
adamc@801	881 }
adamc@801	882
adamc@1094	883 if (n >= ctx->app->inputs_len) {
adamc@801	884 uw_set_error(ctx, "For subforms name %s, index %d is out of range", value, n);
adamc@801	885 return -1;
adamc@801	886 }
adamc@759	887
adamc@759	888 INP(ctx)[n].kind = SUBFORMS;
adamc@759	889 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	890 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	891 ctx->cur_container = &INP(ctx)[n];
adamc@759	892 } else if (!strcasecmp(name, ".i")) {
adamc@759	893 input *inps;
adamc@759	894
adamc@801	895 if (!ctx->cur_container) {
adamc@801	896 uw_set_error(ctx, "New entry without container");
adamc@801	897 return -1;
adamc@801	898 }
adamc@801	899
adamc@801	900 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	901 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	902 return -1;
adamc@801	903 }
adamc@759	904
adamc@1094	905 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	906
adamc@759	907 inps->kind = ENTRY;
adamc@759	908 inps->data.entry.parent = ctx->cur_container;
adamc@759	909 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	910 ctx->cur_container->data.subforms.entries = inps;
adamc@759	911
adamc@759	912 inps->data.entry.fields = inps+1;
adamc@759	913 ctx->cur_container = inps;
adamc@756	914 } else {
adamc@1094	915 int n = ctx->app->input_num(name);
adamc@756	916
adamc@801	917 if (n < 0) {
adamc@1038	918 if (!strcmp(name, "null"))
adamc@1038	919 return 0;
adamc@801	920 uw_set_error(ctx, "Bad input name %s", name);
adamc@801	921 return -1;
adamc@801	922 }
adamc@801	923
adamc@1094	924 if (n >= ctx->app->inputs_len) {
adamc@801	925 uw_set_error(ctx, "For input name %s, index %d is out of range", name, n);
adamc@801	926 return -1;
adamc@801	927 }
adamc@756	928
adamc@756	929 INP(ctx)[n].kind = NORMAL;
adamc@756	930 INP(ctx)[n].data.normal = value;
adamc@756	931 }
adamc@801	932
adamc@801	933 return 0;
adamc@144	934 }
adamc@144	935
adamc@311	936 char *uw_get_input(uw_context ctx, int n) {
adamc@169	937 if (n < 0)
adamc@311	938 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	939 if (n >= ctx->app->inputs_len)
adamc@311	940 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	941
adamc@756	942 switch (INP(ctx)[n].kind) {
adamc@737	943 case UNSET:
adamc@737	944 return NULL;
adamc@739	945 case FIL:
adamc@739	946 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	947 case SUBFORM:
adamc@756	948 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	949 case SUBFORMS:
adamc@759	950 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	951 case ENTRY:
adamc@759	952 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	953 case NORMAL:
adamc@756	954 return INP(ctx)[n].data.normal;
adamc@737	955 default:
adamc@737	956 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	957 }
adamc@138	958 }
adamc@138	959
adamc@311	960 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	961 if (n < 0)
adamc@311	962 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	963 if (n >= ctx->app->inputs_len)
adamc@311	964 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	965
adamc@756	966 switch (INP(ctx)[n].kind) {
adamc@737	967 case UNSET:
adamc@737	968 return "";
adamc@739	969 case FIL:
adamc@739	970 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	971 case SUBFORM:
adamc@756	972 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	973 case SUBFORMS:
adamc@759	974 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	975 case ENTRY:
adamc@759	976 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	977 case NORMAL:
adamc@756	978 return INP(ctx)[n].data.normal;
adamc@737	979 default:
adamc@737	980 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	981 }
adamc@737	982 }
adamc@737	983
adamc@801	984 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	985 int n = ctx->app->input_num(name);
adamc@737	986
adamc@801	987 if (n < 0) {
adamc@801	988 uw_set_error(ctx, "Bad file input name %s", name);
adamc@801	989 return -1;
adamc@801	990 }
adamc@801	991
adamc@1094	992 if (n >= ctx->app->inputs_len) {
adamc@801	993 uw_set_error(ctx, "For file input name %s, index %d is out of range", name, n);
adamc@801	994 return -1;
adamc@801	995 }
adamc@737	996
adamc@739	997 ctx->inputs[n].kind = FIL;
adamc@739	998 ctx->inputs[n].data.file = f;
adamc@801	999
adamc@801	1000 return 0;
adamc@737	1001 }
adamc@737	1002
adamc@739	1003 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1004
adamc@739	1005 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1006 if (n < 0)
adamc@737	1007 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1008 if (n >= ctx->app->inputs_len)
adamc@737	1009 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1010
adamc@756	1011 switch (INP(ctx)[n].kind) {
adamc@737	1012 case UNSET:
adamc@737	1013 {
adamc@739	1014 char *data = uw_malloc(ctx, 0);
adamc@740	1015 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1016 return f;
adamc@737	1017 }
adamc@739	1018 case FIL:
adamc@756	1019 return INP(ctx)[n].data.file;
adamc@737	1020 case NORMAL:
adamc@737	1021 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1022 case SUBFORM:
adamc@756	1023 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1024 case SUBFORMS:
adamc@759	1025 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1026 case ENTRY:
adamc@759	1027 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1028 default:
adamc@737	1029 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1030 }
adamc@190	1031 }
adamc@190	1032
adamc@756	1033 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1034 if (n < 0)
adamc@756	1035 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1036 if (n >= ctx->app->inputs_len)
adamc@756	1037 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1038
adamc@756	1039 switch (INP(ctx)[n].kind) {
adamc@756	1040 case UNSET:
adamc@756	1041 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1042 case FIL:
adamc@756	1043 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1044 case NORMAL:
adamc@756	1045 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1046 case SUBFORMS:
adamc@759	1047 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1048 case ENTRY:
adamc@759	1049 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1050 case SUBFORM:
adamc@759	1051 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1052 ctx->cur_container = &INP(ctx)[n];
adamc@756	1053 return;
adamc@756	1054 default:
adamc@756	1055 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1056 }
adamc@756	1057 }
adamc@756	1058
adamc@756	1059 void uw_leave_subform(uw_context ctx) {
adamc@756	1060 input *tmp;
adamc@756	1061
adamc@759	1062 if (ctx->cur_container == NULL)
adamc@756	1063 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1064
adamc@759	1065 tmp = ctx->cur_container;
adamc@759	1066 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1067 tmp->data.subform.parent = NULL;
adamc@759	1068 }
adamc@759	1069
adamc@759	1070 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1071 input *inps;
adamc@759	1072
adamc@759	1073 if (n < 0)
adamc@759	1074 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1075 if (n >= ctx->app->inputs_len)
adamc@759	1076 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1077
adamc@759	1078 switch (INP(ctx)[n].kind) {
adamc@759	1079 case UNSET:
adamc@759	1080 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1081 case FIL:
adamc@759	1082 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1083 case NORMAL:
adamc@759	1084 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1085 case SUBFORM:
adamc@759	1086 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1087 case ENTRY:
adamc@759	1088 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1089 case SUBFORMS:
adamc@759	1090 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1091 if (inps) {
adamc@759	1092 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1093 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1094 return 1;
adamc@759	1095 } else
adamc@759	1096 return 0;
adamc@759	1097 default:
adamc@759	1098 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1099 }
adamc@759	1100 }
adamc@759	1101
adamc@759	1102 int uw_next_entry(uw_context ctx) {
adamc@759	1103 if (ctx->cur_container == NULL)
adamc@759	1104 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1105
adamc@759	1106 switch (ctx->cur_container->kind) {
adamc@759	1107 case UNSET:
adamc@759	1108 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1109 case FIL:
adamc@759	1110 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1111 case NORMAL:
adamc@759	1112 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1113 case SUBFORM:
adamc@759	1114 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1115 case SUBFORMS:
adamc@759	1116 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1117 case ENTRY:
adamc@759	1118 if (ctx->cur_container->data.entry.next) {
adamc@759	1119 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1120 return 1;
adamc@759	1121 } else {
adamc@759	1122 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1123 return 0;
adamc@759	1124 }
adamc@759	1125 default:
adamc@759	1126 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1127 }
adamc@756	1128 }
adamc@756	1129
adamc@643	1130 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1131 ctx->script_header = s;
adamc@643	1132 }
adamc@643	1133
adamc@1094	1134 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1135 return ctx->app->url_prefix;
adamc@667	1136 }
adamc@667	1137
adamc@693	1138 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1139 ctx->needs_push = n;
adamc@693	1140 }
adamc@693	1141
adamc@736	1142 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1143 ctx->needs_sig = n;
adamc@736	1144 }
adamc@736	1145
adamc@667	1146
adamc@1113	1147 static void buf_check_ctx(uw_context ctx, const char kind, buf b, size_t extra, const char *desc) {
adamc@666	1148 if (b->back - b->front < extra) {
adamc@666	1149 size_t desired = b->front - b->start + extra, next;
adamc@136	1150 char *new_heap;
adamc@136	1151
adamc@666	1152 next = b->back - b->start;
adamc@317	1153 if (next == 0)
adamc@317	1154 next = 1;
adamc@317	1155 for (; next < desired; next *= 2);
adamc@136	1156
adamc@1134	1157 if (next > b->max) {
adamc@1113	1158 if (desired <= b->max)
adamc@1113	1159 next = desired;
adamc@1113	1160 else
adamc@1113	1161 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1162 }
adamc@1113	1163
adamc@666	1164 new_heap = realloc(b->start, next);
adamc@666	1165 b->front = new_heap + (b->front - b->start);
adamc@666	1166 b->back = new_heap + next;
adamc@136	1167
adamc@667	1168 if (new_heap != b->start) {
adamc@666	1169 b->start = new_heap;
adamc@666	1170 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously", desc);
adamc@136	1171 }
adamc@136	1172
adamc@666	1173 b->start = new_heap;
adamc@136	1174 }
adamc@136	1175 }
adamc@136	1176
adamc@832	1177 void uw_check_heap(uw_context ctx, size_t extra) {
adamc@1113	1178 buf_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1179 }
adamc@666	1180
adamc@832	1181 char *uw_heap_front(uw_context ctx) {
adamc@832	1182 return ctx->heap.front;
adamc@832	1183 }
adamc@832	1184
adamc@832	1185 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1186 ctx->heap.front = fr;
adamc@832	1187 }
adamc@832	1188
adamc@311	1189 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136	1190 void *result;
adamc@136	1191
adamc@311	1192 uw_check_heap(ctx, len);
adamc@136	1193
adamc@666	1194 result = ctx->heap.front;
adamc@666	1195 ctx->heap.front += len;
adamc@136	1196 return result;
adamc@117	1197 }
adamc@117	1198
adamc@323	1199 void uw_begin_region(uw_context ctx) {
adamc@666	1200 regions r = (regions ) ctx->heap.front;
adamc@323	1201
adamc@323	1202 uw_check_heap(ctx, sizeof(regions));
adamc@323	1203
adamc@666	1204 ctx->heap.front += sizeof(regions);
adamc@323	1205
adamc@323	1206 r->next = ctx->regions;
adamc@323	1207 ctx->regions = r;
adamc@323	1208 }
adamc@323	1209
adamc@323	1210 void uw_end_region(uw_context ctx) {
adamc@323	1211 regions *r = ctx->regions;
adamc@323	1212
adamc@323	1213 if (r == NULL)
adamc@323	1214 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1215
adamc@666	1216 ctx->heap.front = (char *) r;
adamc@323	1217 ctx->regions = r->next;
adamc@323	1218 }
adamc@323	1219
adamc@324	1220 void uw_memstats(uw_context ctx) {
adamc@1134	1221 printf("Headers: %lu/%lu\n", (unsigned long)buf_used(&ctx->outHeaders), (unsigned long)buf_avail(&ctx->outHeaders));
adamc@1134	1222 printf("Script: %lu/%lu\n", (unsigned long)buf_used(&ctx->script), (unsigned long)buf_avail(&ctx->script));
adamc@1134	1223 printf("Page: %lu/%lu\n", (unsigned long)buf_used(&ctx->page), (unsigned long)buf_avail(&ctx->page));
adamc@1134	1224 printf("Heap: %lu/%lu\n", (unsigned long)buf_used(&ctx->heap), (unsigned long)buf_avail(&ctx->heap));
adamc@324	1225 }
adamc@324	1226
adamc@311	1227 int uw_send(uw_context ctx, int sock) {
adamc@666	1228 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462	1229
adamc@462	1230 if (n < 0)
adamc@462	1231 return n;
adamc@462	1232
adamc@462	1233 n = uw_really_send(sock, "\r\n", 2);
adamc@462	1234
adamc@462	1235 if (n < 0)
adamc@462	1236 return n;
adamc@462	1237
adamc@666	1238 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462	1239 }
adamc@462	1240
adamc@856	1241 int uw_print(uw_context ctx, int fd) {
adamc@856	1242 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1243
adamc@856	1244 if (n < 0)
adamc@856	1245 return n;
adamc@856	1246
adamc@856	1247 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1248
adamc@856	1249 if (n < 0)
adamc@856	1250 return n;
adamc@856	1251
adamc@856	1252 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1253 }
adamc@856	1254
adamc@860	1255 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1256 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1257
adamc@860	1258 if (n < 0)
adamc@860	1259 return n;
adamc@860	1260
adamc@860	1261 n = output(data, "\r\n", 2);
adamc@860	1262
adamc@860	1263 if (n < 0)
adamc@860	1264 return n;
adamc@860	1265
adamc@860	1266 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1267 }
adamc@860	1268
adamc@462	1269 static void uw_check_headers(uw_context ctx, size_t extra) {
adamc@1113	1270 ctx_buf_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1271 }
adamc@462	1272
adamc@462	1273 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1274 int len = strlen(s);
adamc@462	1275
adamc@462	1276 uw_check_headers(ctx, len + 1);
adamc@666	1277 strcpy(ctx->outHeaders.front, s);
adamc@666	1278 ctx->outHeaders.front += len;
adamc@562	1279 }
adamc@562	1280
adamc@1110	1281 void uw_clear_headers(uw_context ctx) {
adamc@1110	1282 buf_reset(&ctx->outHeaders);
adamc@1110	1283 }
adamc@1110	1284
adamc@562	1285 static void uw_check_script(uw_context ctx, size_t extra) {
adamc@1113	1286 ctx_buf_check(ctx, "script", &ctx->script, extra);
adamc@562	1287 }
adamc@562	1288
adamc@562	1289 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1290 int len = strlen(s);
adamc@562	1291
adamc@562	1292 uw_check_script(ctx, len + 1);
adamc@666	1293 strcpy(ctx->script.front, s);
adamc@666	1294 ctx->script.front += len;
adamc@562	1295 }
adamc@562	1296
adamc@645	1297 const char *uw_Basis_get_script(uw_context ctx, uw_unit u) {
adamc@916	1298 return "<sc>";
adamc@565	1299 }
adamc@565	1300
adamc@695	1301 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1302 if (s[0] == 0)
adamc@695	1303 return "";
adamc@695	1304 else {
adamc@695	1305 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1306 sprintf(r, " onload='%s'", s);
adamc@695	1307 return r;
adamc@695	1308 }
adamc@695	1309 }
adamc@695	1310
adamc@1042	1311 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1312 if (ctx->script_header[0] == 0)
adamc@1042	1313 return "";
adamc@1042	1314 else {
adamc@1042	1315 char *r = uw_malloc(ctx, 22 + strlen(s));
adamc@1042	1316 sprintf(r, " onunload='unload();%s'", s);
adamc@1042	1317 return r;
adamc@1042	1318 }
adamc@1042	1319 }
adamc@1042	1320
adamc@694	1321 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1322 if (ctx->client == NULL) {
adamc@736	1323 if (ctx->needs_sig) {
adamc@1094	1324 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1325 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1326 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1327 return r;
adamc@736	1328 }
adamc@736	1329 else
adamc@736	1330 return "";
adamc@736	1331 } else {
adamc@1094	1332 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1333 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1334 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adamc@736	1335 sprintf(r, "client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adamc@682	1336 ctx->client->id,
adamc@682	1337 ctx->client->pass,
adamc@1094	1338 ctx->app->url_prefix,
adamc@1094	1339 ctx->app->timeout,
adamc@736	1340 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1341 sig,
adamc@736	1342 ctx->needs_sig ? "\";" : "");
adamc@679	1343 return r;
adamc@668	1344 }
adamc@667	1345 }
adamc@667	1346
adamc@574	1347 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1348 char r, s2;
adamc@574	1349
adamc@574	1350 uw_check_heap(ctx, strlen(s) * 4 + 2);
adamc@574	1351
adamc@666	1352 r = s2 = ctx->heap.front;
adamc@574	1353 *s2++ = '"';
adamc@574	1354
adamc@574	1355 for (; *s; s++) {
adam@1286	1356 unsigned char c = *s;
adamc@574	1357
adamc@574	1358 switch (c) {
adamc@574	1359 case '"':
adamc@574	1360 strcpy(s2, "\\\"");
adamc@574	1361 s2 += 2;
adamc@574	1362 break;
adamc@1027	1363 case '\'':
adamc@1027	1364 strcpy(s2, "\\047");
adamc@1027	1365 s2 += 4;
adamc@1027	1366 break;
adamc@574	1367 case '\\':
adamc@574	1368 strcpy(s2, "\\\\");
adamc@574	1369 s2 += 2;
adamc@574	1370 break;
adamc@574	1371 default:
adam@1286	1372 if (isprint((int)c) \|\| c >= 128)
adamc@574	1373 *s2++ = c;
adamc@574	1374 else {
adamc@574	1375 sprintf(s2, "\\%3o", c);
adamc@574	1376 s2 += 4;
adamc@574	1377 }
adamc@574	1378 }
adamc@574	1379 }
adamc@574	1380
adamc@574	1381 strcpy(s2, "\"");
adamc@910	1382 ctx->heap.front = s2 + 2;
adamc@574	1383 return r;
adamc@574	1384 }
adamc@574	1385
adam@1286	1386 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1387 unsigned char c = c1;
adamc@1025	1388 char r, s2;
adamc@1025	1389
adamc@1025	1390 uw_check_heap(ctx, 6);
adamc@1025	1391
adamc@1025	1392 r = s2 = ctx->heap.front;
adamc@1025	1393 *s2++ = '"';
adamc@1025	1394
adamc@1025	1395 switch (c) {
adamc@1025	1396 case '"':
adamc@1025	1397 strcpy(s2, "\\\"");
adamc@1025	1398 s2 += 2;
adamc@1025	1399 break;
adamc@1027	1400 case '\'':
adamc@1027	1401 strcpy(s2, "\\047");
adamc@1027	1402 s2 += 4;
adamc@1027	1403 break;
adamc@1025	1404 case '\\':
adamc@1025	1405 strcpy(s2, "\\\\");
adamc@1025	1406 s2 += 2;
adamc@1025	1407 break;
adamc@1025	1408 default:
adam@1286	1409 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1410 *s2++ = c;
adamc@1025	1411 else {
adam@1286	1412 sprintf(s2, "\\%3o", (unsigned char)c);
adamc@1025	1413 s2 += 4;
adamc@1025	1414 }
adamc@1025	1415 }
adamc@1025	1416
adamc@1025	1417 strcpy(s2, "\"");
adamc@1025	1418 ctx->heap.front = s2 + 2;
adamc@1025	1419 return r;
adamc@1025	1420 }
adamc@1025	1421
adamc@574	1422 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1423 char r, s2;
adamc@574	1424
adamc@574	1425 uw_check_script(ctx, strlen(s) * 4 + 2);
adamc@574	1426
adamc@666	1427 r = s2 = ctx->script.front;
adamc@574	1428 *s2++ = '"';
adamc@574	1429
adamc@574	1430 for (; *s; s++) {
adam@1286	1431 unsigned char c = *s;
adamc@574	1432
adamc@574	1433 switch (c) {
adamc@577	1434 case '\'':
adamc@1027	1435 strcpy(s2, "\\");
adamc@574	1436 s2 += 2;
adamc@574	1437 break;
adamc@574	1438 case '\\':
adamc@574	1439 strcpy(s2, "\\\\");
adamc@574	1440 s2 += 2;
adamc@574	1441 break;
adamc@574	1442 default:
adam@1286	1443 if (isprint((int)c) \|\| c >= 128)
adamc@574	1444 *s2++ = c;
adamc@574	1445 else {
adamc@574	1446 sprintf(s2, "\\%3o", c);
adamc@574	1447 s2 += 4;
adamc@574	1448 }
adamc@574	1449 }
adamc@574	1450 }
adamc@574	1451
adamc@574	1452 strcpy(s2, "\"");
adamc@666	1453 ctx->script.front = s2 + 1;
adamc@574	1454 return r;
adamc@574	1455 }
adamc@574	1456
adamc@682	1457 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1458 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1459 return "null";
adamc@682	1460 else {
adamc@682	1461 int len;
adamc@682	1462 char *r;
adamc@682	1463
adamc@682	1464 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1465 r = ctx->heap.front;
adamc@682	1466 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1467 ctx->heap.front += len+1;
adamc@682	1468 return r;
adamc@682	1469 }
adamc@682	1470 }
adamc@682	1471
adamc@577	1472 uw_Basis_int uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1473 int len;
adamc@577	1474 size_t s_len = strlen(s);
adamc@562	1475
adamc@970	1476 uw_check_script(ctx, 18 + INTS_MAX + s_len);
adamc@970	1477 sprintf(ctx->script.front, "var s%d=sc(exec(%n", ctx->source_count, &len);
adamc@666	1478 ctx->script.front += len;
adamc@666	1479 strcpy(ctx->script.front, s);
adamc@666	1480 ctx->script.front += s_len;
adamc@970	1481 strcpy(ctx->script.front, "));");
adamc@972	1482 ctx->script.front += 3;
adamc@562	1483
adamc@565	1484 return ctx->source_count++;
adamc@117	1485 }
adamc@117	1486
adamc@577	1487 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_int n, uw_Basis_string s) {
adamc@577	1488 int len;
adamc@577	1489 size_t s_len = strlen(s);
adamc@577	1490
adamc@970	1491 uw_check_script(ctx, 12 + INTS_MAX + s_len);
adamc@970	1492 sprintf(ctx->script.front, "sv(s%d,exec(%n", (int)n, &len);
adamc@666	1493 ctx->script.front += len;
adamc@666	1494 strcpy(ctx->script.front, s);
adamc@666	1495 ctx->script.front += s_len;
adamc@970	1496 strcpy(ctx->script.front, "));");
adamc@972	1497 ctx->script.front += 3;
adamc@577	1498
adamc@577	1499 return uw_unit_v;
adamc@577	1500 }
adamc@577	1501
adamc@311	1502 static void uw_check(uw_context ctx, size_t extra) {
adamc@1113	1503 ctx_buf_check(ctx, "page", &ctx->page, extra);
adamc@117	1504 }
adamc@117	1505
adamc@311	1506 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1507 *(ctx->page.front)++ = c;
adamc@117	1508 }
adamc@117	1509
adamc@311	1510 void uw_writec(uw_context ctx, char c) {
adamc@311	1511 uw_check(ctx, 1);
adamc@311	1512 uw_writec_unsafe(ctx, c);
adamc@117	1513 }
adamc@117	1514
adamc@311	1515 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1516 int len = strlen(s);
adamc@666	1517 memcpy(ctx->page.front, s, len);
adamc@666	1518 ctx->page.front += len;
adamc@117	1519 }
adamc@117	1520
adamc@311	1521 void uw_write(uw_context ctx, const char* s) {
adamc@311	1522 uw_check(ctx, strlen(s) + 1);
adamc@311	1523 uw_write_unsafe(ctx, s);
adamc@666	1524 *ctx->page.front = 0;
adamc@102	1525 }
adamc@106	1526
adamc@311	1527 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1528 char *result;
adamc@136	1529 int len;
adamc@311	1530 uw_check_heap(ctx, INTS_MAX);
adamc@666	1531 result = ctx->heap.front;
adamc@276	1532 sprintf(result, "%lld%n", n, &len);
adamc@666	1533 ctx->heap.front += len+1;
adamc@136	1534 return result;
adamc@106	1535 }
adamc@106	1536
adamc@311	1537 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1538 char *result;
adamc@136	1539 int len;
adamc@311	1540 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1541 result = ctx->heap.front;
adamc@136	1542 sprintf(result, "%g%n", n, &len);
adamc@666	1543 ctx->heap.front += len+1;
adamc@136	1544 return result;
adamc@106	1545 }
adamc@106	1546
adamc@311	1547 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1548 int len = strlen(s);
adamc@136	1549 char result, p;
adamc@311	1550 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1551
adamc@666	1552 result = p = ctx->heap.front;
adamc@136	1553
adamc@136	1554 for (; *s; s++) {
adamc@1054	1555 unsigned char c = *s;
adamc@136	1556
adamc@136	1557 if (c == '"') {
adamc@136	1558 strcpy(p, """);
adamc@136	1559 p += 6;
adamc@136	1560 } else if (c == '&') {
adamc@136	1561 strcpy(p, "&");
adamc@136	1562 p += 5;
adamc@136	1563 }
adamc@1059	1564 else
adamc@136	1565 *p++ = c;
adamc@136	1566 }
adamc@136	1567
adamc@137	1568 *p++ = 0;
adamc@666	1569 ctx->heap.front = p;
adamc@136	1570 return result;
adamc@106	1571 }
adamc@106	1572
adamc@1011	1573 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1574 char result, p;
adamc@1011	1575 uw_check_heap(ctx, 7);
adamc@1011	1576
adamc@1011	1577 result = p = ctx->heap.front;
adamc@1011	1578
adamc@1011	1579 if (c == '"') {
adamc@1011	1580 strcpy(p, """);
adamc@1011	1581 p += 6;
adamc@1011	1582 } else if (c == '&') {
adamc@1011	1583 strcpy(p, "&");
adamc@1011	1584 p += 5;
adamc@1011	1585 }
adamc@1059	1586 else
adamc@1011	1587 *p++ = c;
adamc@1011	1588
adamc@1011	1589 *p++ = 0;
adamc@1011	1590 ctx->heap.front = p;
adamc@1011	1591 return result;
adamc@1011	1592 }
adamc@1011	1593
adamc@721	1594 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1595 return s;
adamc@721	1596 }
adamc@721	1597
adamc@311	1598 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1599 int len;
adamc@117	1600
adamc@666	1601 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1602 ctx->page.front += len;
adamc@106	1603 }
adamc@106	1604
adamc@428	1605 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1606 uw_check(ctx, INTS_MAX);
adamc@311	1607 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1608
adamc@428	1609 return uw_unit_v;
adamc@106	1610 }
adamc@106	1611
adamc@428	1612 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1613 int len;
adamc@117	1614
adamc@311	1615 uw_check(ctx, FLOATS_MAX);
adamc@666	1616 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1617 ctx->page.front += len;
adamc@428	1618
adamc@428	1619 return uw_unit_v;
adamc@117	1620 }
adamc@117	1621
adamc@428	1622 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1623 uw_check(ctx, strlen(s) * 6);
adamc@117	1624
adamc@106	1625 for (; *s; s++) {
adamc@1054	1626 unsigned char c = *s;
adamc@106	1627
adamc@106	1628 if (c == '"')
adamc@311	1629 uw_write_unsafe(ctx, """);
adamc@136	1630 else if (c == '&')
adamc@311	1631 uw_write_unsafe(ctx, "&");
adamc@1059	1632 else
adamc@311	1633 uw_writec_unsafe(ctx, c);
adamc@106	1634 }
adamc@428	1635
adamc@428	1636 return uw_unit_v;
adamc@106	1637 }
adamc@120	1638
adamc@1011	1639 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1640 uw_check(ctx, 6);
adamc@1011	1641
adamc@1011	1642 if (c == '"')
adamc@1011	1643 uw_write_unsafe(ctx, """);
adamc@1011	1644 else if (c == '&')
adamc@1011	1645 uw_write_unsafe(ctx, "&");
adamc@1059	1646 else
adamc@1011	1647 uw_writec_unsafe(ctx, c);
adamc@1011	1648
adamc@1011	1649 return uw_unit_v;
adamc@1011	1650 }
adamc@1011	1651
adamc@120	1652
adamc@311	1653 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1654 int len;
adamc@137	1655 char *r;
adamc@137	1656
adamc@311	1657 uw_check_heap(ctx, INTS_MAX);
adamc@666	1658 r = ctx->heap.front;
adamc@276	1659 sprintf(r, "%lld%n", n, &len);
adamc@666	1660 ctx->heap.front += len+1;
adamc@137	1661 return r;
adamc@120	1662 }
adamc@120	1663
adamc@682	1664 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1665 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1666 return "";
adamc@682	1667 else {
adamc@682	1668 int len;
adamc@682	1669 char *r;
adamc@679	1670
adamc@682	1671 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1672 r = ctx->heap.front;
adamc@682	1673 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1674 ctx->heap.front += len+1;
adamc@682	1675 return r;
adamc@682	1676 }
adamc@679	1677 }
adamc@679	1678
adamc@311	1679 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1680 int len;
adamc@137	1681 char *r;
adamc@137	1682
adamc@311	1683 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1684 r = ctx->heap.front;
adamc@137	1685 sprintf(r, "%g%n", n, &len);
adamc@666	1686 ctx->heap.front += len+1;
adamc@137	1687 return r;
adamc@120	1688 }
adamc@120	1689
adamc@311	1690 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1691 char r, p;
adamc@137	1692
adamc@925	1693 if (s[0] == '\0')
adamc@925	1694 return "_";
adamc@925	1695
adamc@925	1696 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1697
adamc@925	1698 r = p = ctx->heap.front;
adamc@925	1699 if (s[0] == '_')
adamc@925	1700 *p++ = '_';
adamc@925	1701
adamc@925	1702 for (; *s; s++) {
adamc@1087	1703 unsigned char c = *s;
adamc@137	1704
adamc@137	1705 if (c == ' ')
adamc@137	1706 *p++ = '+';
adamc@137	1707 else if (isalnum(c))
adamc@137	1708 *p++ = c;
adamc@137	1709 else {
adamc@1259	1710 sprintf(p, ".%02X", c);
adamc@137	1711 p += 3;
adamc@137	1712 }
adamc@137	1713 }
adamc@137	1714
adamc@137	1715 *p++ = 0;
adamc@666	1716 ctx->heap.front = p;
adamc@137	1717 return r;
adamc@120	1718 }
adamc@120	1719
adamc@311	1720 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1721 if (b == uw_Basis_False)
adamc@186	1722 return "0";
adamc@186	1723 else
adamc@186	1724 return "1";
adamc@186	1725 }
adamc@186	1726
adamc@311	1727 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1728 int len;
adamc@120	1729
adamc@666	1730 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1731 ctx->page.front += len;
adamc@120	1732 }
adamc@120	1733
adamc@428	1734 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1735 uw_check(ctx, INTS_MAX);
adamc@311	1736 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1737
adamc@428	1738 return uw_unit_v;
adamc@120	1739 }
adamc@120	1740
adamc@682	1741 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1742 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1743 int len;
adamc@682	1744
adamc@682	1745 uw_check(ctx, INTS_MAX + 1);
adamc@682	1746 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1747 ctx->page.front += len;
adamc@682	1748 }
adamc@682	1749
adamc@679	1750 return uw_unit_v;
adamc@679	1751 }
adamc@679	1752
adamc@428	1753 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1754 int len;
adamc@120	1755
adamc@311	1756 uw_check(ctx, FLOATS_MAX);
adamc@666	1757 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1758 ctx->page.front += len;
adamc@428	1759
adamc@428	1760 return uw_unit_v;
adamc@120	1761 }
adamc@120	1762
adamc@488	1763 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@488	1764 return uw_Basis_urlifyInt(ctx, t);
adamc@488	1765 }
adamc@488	1766
adamc@428	1767 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1768 if (s[0] == '\0') {
adamc@925	1769 uw_check(ctx, 1);
adamc@925	1770 uw_writec_unsafe(ctx, '_');
adamc@925	1771 return uw_unit_v;
adamc@925	1772 }
adamc@925	1773
adamc@925	1774 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1775
adamc@925	1776 if (s[0] == '_')
adamc@925	1777 uw_writec_unsafe(ctx, '_');
adamc@120	1778
adamc@120	1779 for (; *s; s++) {
adamc@1087	1780 unsigned char c = *s;
adamc@120	1781
adamc@120	1782 if (c == ' ')
adamc@311	1783 uw_writec_unsafe(ctx, '+');
adamc@120	1784 else if (isalnum(c))
adamc@311	1785 uw_writec_unsafe(ctx, c);
adamc@120	1786 else {
adamc@1259	1787 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1788 ctx->page.front += 3;
adamc@120	1789 }
adamc@120	1790 }
adamc@428	1791
adamc@428	1792 return uw_unit_v;
adamc@120	1793 }
adamc@120	1794
adamc@428	1795 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1796 if (b == uw_Basis_False)
adamc@311	1797 uw_writec(ctx, '0');
adamc@186	1798 else
adamc@311	1799 uw_writec(ctx, '1');
adamc@428	1800
adamc@428	1801 return uw_unit_v;
adamc@186	1802 }
adamc@186	1803
adamc@120	1804
adamc@311	1805 static char uw_unurlify_advance(char s) {
adamc@144	1806 char *new_s = strchr(s, '/');
adamc@120	1807
adamc@120	1808 if (new_s)
adamc@120	1809 *new_s++ = 0;
adamc@120	1810 else
adamc@144	1811 new_s = strchr(s, 0);
adamc@144	1812
adamc@144	1813 return new_s;
adamc@144	1814 }
adamc@144	1815
adamc@311	1816 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1817 char new_s = uw_unurlify_advance(s);
adamc@311	1818 uw_Basis_int r;
adamc@120	1819
adamc@276	1820 r = atoll(*s);
adamc@120	1821 *s = new_s;
adamc@120	1822 return r;
adamc@120	1823 }
adamc@120	1824
adamc@311	1825 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1826 char new_s = uw_unurlify_advance(s);
adamc@311	1827 uw_Basis_float r;
adamc@120	1828
adamc@120	1829 r = atof(*s);
adamc@120	1830 *s = new_s;
adamc@120	1831 return r;
adamc@120	1832 }
adamc@120	1833
adamc@488	1834 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adamc@488	1835 return uw_Basis_unurlifyInt(ctx, s);
adamc@488	1836 }
adamc@488	1837
adamc@1023	1838 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1839 char s1, s2 = s;
adamc@144	1840 int n;
adamc@136	1841
adamc@1023	1842 if (!fromClient) {
adamc@1023	1843 if (*s2 == '_')
adamc@1023	1844 ++s2;
adamc@1259	1845 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1846 s2 += 3;
adamc@1023	1847 }
adamc@925	1848
adamc@927	1849 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	1850 unsigned char c = *s2;
adamc@136	1851
adamc@136	1852 switch (c) {
adamc@136	1853 case '+':
adamc@136	1854 *s1 = ' ';
adamc@136	1855 break;
adamc@136	1856 case '%':
adamc@169	1857 if (s2[1] == 0)
adamc@311	1858 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1859 if (s2[2] == 0)
adamc@311	1860 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1861 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@311	1862 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@136	1863 *s1 = n;
adamc@136	1864 s2 += 2;
adamc@136	1865 break;
adamc@1259	1866 case '.':
adamc@1259	1867 if (!fromClient) {
adamc@1259	1868 if (s2[1] == 0)
adamc@1259	1869 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	1870 if (s2[2] == 0)
adamc@1259	1871 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	1872 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@1259	1873 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@1259	1874 *s1 = n;
adamc@1259	1875 s2 += 2;
adamc@1259	1876 break;
adamc@1259	1877 }
adamc@136	1878 default:
adamc@136	1879 *s1 = c;
adamc@136	1880 }
adamc@136	1881 }
adamc@136	1882 *s1++ = 0;
adamc@144	1883 return s1;
adamc@144	1884 }
adamc@144	1885
adamc@311	1886 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	1887 char new_s = uw_unurlify_advance(s);
adamc@311	1888 uw_Basis_bool r;
adamc@186	1889
adamc@186	1890 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	1891 r = uw_Basis_False;
adamc@186	1892 else
adamc@311	1893 r = uw_Basis_True;
adamc@186	1894
adamc@186	1895 *s = new_s;
adamc@186	1896 return r;
adamc@186	1897 }
adamc@186	1898
adamc@311	1899 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	1900 char new_s = uw_unurlify_advance(s);
adamc@1134	1901 char *r;
adamc@1134	1902 int len;
adamc@144	1903
adamc@200	1904 len = strlen(*s);
adamc@311	1905 uw_check_heap(ctx, len + 1);
adamc@144	1906
adamc@666	1907 r = ctx->heap.front;
adamc@1023	1908 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	1909 *s = new_s;
adamc@1023	1910 return r;
adamc@1023	1911 }
adamc@1023	1912
adamc@1109	1913 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	1914 s = uw_unurlify_advance(s);
adamc@1109	1915 return uw_unit_v;
adamc@1109	1916 }
adamc@1109	1917
adamc@1023	1918 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	1919 char new_s = uw_unurlify_advance(s);
adamc@1134	1920 char *r;
adamc@1134	1921 int len;
adamc@1023	1922
adamc@1023	1923 len = strlen(*s);
adamc@1023	1924 uw_check_heap(ctx, len + 1);
adamc@1023	1925
adamc@1023	1926 r = ctx->heap.front;
adamc@1023	1927 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	1928 *s = new_s;
adamc@136	1929 return r;
adamc@120	1930 }
adamc@135	1931
adamc@135	1932
adamc@311	1933 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	1934 int len;
adamc@286	1935 char *r;
adamc@286	1936
adamc@311	1937 uw_check_heap(ctx, INTS_MAX);
adamc@666	1938 r = ctx->heap.front;
adamc@286	1939 sprintf(r, "%lld%n", n, &len);
adamc@666	1940 ctx->heap.front += len+1;
adamc@286	1941 return r;
adamc@286	1942 }
adamc@286	1943
adamc@428	1944 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	1945 int len;
adamc@286	1946
adamc@311	1947 uw_check(ctx, INTS_MAX);
adamc@666	1948 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1949 ctx->page.front += len;
adamc@428	1950
adamc@428	1951 return uw_unit_v;
adamc@286	1952 }
adamc@286	1953
adamc@311	1954 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	1955 int len;
adamc@286	1956 char *r;
adamc@286	1957
adamc@311	1958 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1959 r = ctx->heap.front;
adamc@286	1960 sprintf(r, "%g%n", n, &len);
adamc@666	1961 ctx->heap.front += len+1;
adamc@286	1962 return r;
adamc@286	1963 }
adamc@286	1964
adamc@428	1965 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	1966 int len;
adamc@286	1967
adamc@311	1968 uw_check(ctx, FLOATS_MAX);
adamc@666	1969 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1970 ctx->page.front += len;
adamc@428	1971
adamc@428	1972 return uw_unit_v;
adamc@286	1973 }
adamc@286	1974
adamc@311	1975 char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1976 char r, s2;
adamc@137	1977
adamc@311	1978 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	1979
adamc@666	1980 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	1981 unsigned char c = *s;
adamc@137	1982
adamc@137	1983 switch (c) {
adamc@137	1984 case '<':
adamc@137	1985 strcpy(s2, "<");
adamc@137	1986 s2 += 4;
adamc@137	1987 break;
adamc@137	1988 case '&':
adamc@137	1989 strcpy(s2, "&");
adamc@137	1990 s2 += 5;
adamc@137	1991 break;
adamc@137	1992 default:
adamc@1059	1993 *s2++ = c;
adamc@137	1994 }
adamc@137	1995 }
adamc@137	1996
adamc@137	1997 *s2++ = 0;
adamc@666	1998 ctx->heap.front = s2;
adamc@137	1999 return r;
adamc@135	2000 }
adamc@135	2001
adamc@428	2002 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2003 uw_check(ctx, strlen(s) * 6);
adamc@135	2004
adamc@135	2005 for (; *s; s++) {
adamc@1054	2006 unsigned char c = *s;
adamc@135	2007
adamc@135	2008 switch (c) {
adamc@135	2009 case '<':
adamc@311	2010 uw_write_unsafe(ctx, "<");
adamc@135	2011 break;
adamc@135	2012 case '&':
adamc@311	2013 uw_write_unsafe(ctx, "&");
adamc@135	2014 break;
adamc@135	2015 default:
adamc@1059	2016 uw_writec_unsafe(ctx, c);
adamc@135	2017 }
adamc@135	2018 }
adamc@428	2019
adamc@428	2020 return uw_unit_v;
adamc@135	2021 }
adamc@180	2022
adamc@311	2023 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2024 if (b == uw_Basis_False)
adamc@286	2025 return "False";
adamc@286	2026 else
adamc@286	2027 return "True";
adamc@286	2028 }
adamc@286	2029
adamc@428	2030 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2031 if (b == uw_Basis_False) {
adamc@311	2032 uw_check(ctx, 6);
adamc@666	2033 strcpy(ctx->page.front, "False");
adamc@666	2034 ctx->page.front += 5;
adamc@286	2035 } else {
adamc@311	2036 uw_check(ctx, 5);
adamc@666	2037 strcpy(ctx->page.front, "True");
adamc@666	2038 ctx->page.front += 4;
adamc@286	2039 }
adamc@428	2040
adamc@428	2041 return uw_unit_v;
adamc@286	2042 }
adamc@286	2043
adamc@436	2044 #define TIME_FMT "%x %X"
adamc@438	2045 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436	2046
adamc@436	2047 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436	2048 size_t len;
adamc@436	2049 char *r;
adamc@436	2050 struct tm stm;
adamc@436	2051
adamc@436	2052 if (localtime_r(&t, &stm)) {
adamc@436	2053 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2054 r = ctx->heap.front;
adamc@436	2055 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2056 ctx->heap.front += len+1;
adamc@436	2057 return r;
adamc@436	2058 } else
adamc@436	2059 return "<i>Invalid time</i>";
adamc@436	2060 }
adamc@436	2061
adamc@436	2062 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436	2063 size_t len;
adamc@436	2064 char *r;
adamc@436	2065 struct tm stm;
adamc@436	2066
adamc@436	2067 if (localtime_r(&t, &stm)) {
adamc@436	2068 uw_check(ctx, TIMES_MAX);
adamc@666	2069 r = ctx->page.front;
adamc@436	2070 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2071 ctx->page.front += len;
adamc@436	2072 } else {
adamc@436	2073 uw_check(ctx, 20);
adamc@666	2074 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666	2075 ctx->page.front += 19;
adamc@436	2076 }
adamc@436	2077
adamc@436	2078 return uw_unit_v;
adamc@436	2079 }
adamc@436	2080
adamc@821	2081 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	2082 if (n >= 0 && n < strlen(s))
adamc@821	2083 return s[n];
adamc@821	2084 else
adamc@821	2085 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adamc@821	2086 }
adamc@821	2087
adamc@821	2088 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	2089 if (n >= 0 && n < strlen(s))
adamc@821	2090 return &s[n];
adamc@821	2091 else
adamc@821	2092 uw_error(ctx, FATAL, "Out-of-bounds strsuffix");
adamc@821	2093 }
adamc@821	2094
adamc@828	2095 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2096 return strlen(s);
adamc@828	2097 }
adamc@828	2098
adamc@829	2099 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2100 return strchr(s, ch);
adamc@829	2101 }
adamc@829	2102
adamc@831	2103 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2104 return strcspn(s, chs);
adamc@831	2105 }
adamc@831	2106
adamc@829	2107 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2108 uw_Basis_string r = strchr(s, ch);
adamc@829	2109 if (r == NULL)
adamc@829	2110 return NULL;
adamc@829	2111 else {
adamc@829	2112 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2113 *nr = r - s;
adamc@829	2114 return nr;
adamc@829	2115 }
adamc@829	2116 }
adamc@829	2117
adamc@311	2118 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2119 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2120 char *s;
adamc@180	2121
adamc@311	2122 uw_check_heap(ctx, len);
adamc@180	2123
adamc@666	2124 s = ctx->heap.front;
adamc@180	2125
adamc@180	2126 strcpy(s, s1);
adamc@180	2127 strcat(s, s2);
adamc@666	2128 ctx->heap.front += len;
adamc@180	2129
adamc@180	2130 return s;
adamc@180	2131 }
adamc@278	2132
adamc@829	2133 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2134 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2135
adamc@829	2136 if (start < 0)
adamc@829	2137 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2138 if (len < 0)
adamc@829	2139 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2140 if (start + len > full_len)
adamc@829	2141 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2142
adamc@829	2143 if (start + len == full_len)
adamc@829	2144 return &s[start];
adamc@829	2145 else {
adamc@829	2146 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2147 memcpy(r, s+start, len);
adamc@829	2148 r[len] = 0;
adamc@829	2149 return r;
adamc@829	2150 }
adamc@829	2151
adamc@829	2152 }
adamc@829	2153
adamc@1023	2154 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2155 char *r;
adamc@1023	2156
adamc@1023	2157 uw_check_heap(ctx, 2);
adamc@1023	2158 r = ctx->heap.front;
adamc@1023	2159 r[0] = ch;
adamc@1023	2160 r[1] = 0;
adamc@1023	2161
adamc@1023	2162 ctx->heap.front += 2;
adamc@1023	2163
adamc@1023	2164 return r;
adamc@1023	2165 }
adamc@1023	2166
adamc@737	2167 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2168 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2169 char *s;
adamc@278	2170
adamc@311	2171 uw_check_heap(ctx, len);
adamc@278	2172
adamc@666	2173 s = ctx->heap.front;
adamc@278	2174
adamc@278	2175 strcpy(s, s1);
adamc@666	2176 ctx->heap.front += len;
adamc@278	2177
adamc@278	2178 return s;
adamc@278	2179 }
adamc@280	2180
adam@1295	2181 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2182 if (ctx->error_message[0]) {
adam@1295	2183 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2184 ctx->error_message[0] = 0;
adam@1295	2185 return s;
adam@1295	2186 } else
adam@1295	2187 return NULL;
adam@1295	2188 }
adam@1295	2189
adamc@737	2190 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2191 if (s1)
adamc@737	2192 return uw_strdup(ctx, s1);
adamc@493	2193 else
adamc@493	2194 return NULL;
adamc@493	2195 }
adamc@493	2196
adamc@742	2197 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2198 char *r = uw_malloc(ctx, len);
adamc@742	2199 memcpy(r, p, len);
adamc@742	2200 return r;
adamc@742	2201 }
adamc@280	2202
adamc@879	2203 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2204
adamc@311	2205 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2206 int len;
adamc@281	2207 char *r;
adamc@281	2208
adamc@311	2209 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2210 r = ctx->heap.front;
adamc@879	2211 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2212 ctx->heap.front += len+1;
adamc@281	2213 return r;
adamc@281	2214 }
adamc@281	2215
adamc@467	2216 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2217 if (n == NULL)
adamc@467	2218 return "NULL";
adamc@467	2219 else
adamc@467	2220 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2221 }
adamc@467	2222
adamc@879	2223 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879	2224
adamc@311	2225 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2226 int len;
adamc@281	2227 char *r;
adamc@281	2228
adamc@311	2229 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2230 r = ctx->heap.front;
adamc@879	2231 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2232 ctx->heap.front += len+1;
adamc@281	2233 return r;
adamc@281	2234 }
adamc@281	2235
adamc@467	2236 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2237 if (n == NULL)
adamc@467	2238 return "NULL";
adamc@467	2239 else
adamc@467	2240 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2241 }
adamc@467	2242
adamc@879	2243 int uw_Estrings = 1;
adamc@879	2244 char *uw_sqlsuffixString = "::text";
adamc@1011	2245 char *uw_sqlsuffixChar = "::char";
adamc@281	2246
adamc@311	2247 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2248 char r, s2;
adamc@280	2249
adamc@879	2250 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2251
adamc@666	2252 r = s2 = ctx->heap.front;
adamc@879	2253 if (uw_Estrings)
adamc@879	2254 *s2++ = 'E';
adamc@280	2255 *s2++ = '\'';
adamc@280	2256
adamc@280	2257 for (; *s; s++) {
adamc@280	2258 char c = *s;
adamc@280	2259
adamc@280	2260 switch (c) {
adamc@280	2261 case '\'':
adamc@885	2262 if (uw_Estrings)
adamc@885	2263 strcpy(s2, "\\'");
adamc@885	2264 else
adamc@885	2265 strcpy(s2, "''");
adamc@280	2266 s2 += 2;
adamc@280	2267 break;
adamc@280	2268 case '\\':
adamc@885	2269 if (uw_Estrings) {
adamc@885	2270 strcpy(s2, "\\\\");
adamc@885	2271 s2 += 2;
adamc@885	2272 } else
adamc@885	2273 *s2++ = '\\';
adamc@280	2274 break;
adamc@280	2275 default:
adamc@1150	2276 if (isprint((int)c))
adamc@280	2277 *s2++ = c;
adamc@879	2278 else if (uw_Estrings) {
adamc@737	2279 sprintf(s2, "\\%03o", c);
adamc@280	2280 s2 += 4;
adamc@280	2281 }
adamc@879	2282 else
adamc@879	2283 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280	2284 }
adamc@280	2285 }
adamc@280	2286
adamc@879	2287 *s2++ = '\'';
adamc@879	2288 strcpy(s2, uw_sqlsuffixString);
adamc@879	2289 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2290 return r;
adamc@280	2291 }
adamc@281	2292
adamc@1011	2293 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2294 char r, s2;
adamc@1011	2295
adamc@1011	2296 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2297
adamc@1011	2298 r = s2 = ctx->heap.front;
adamc@1011	2299 if (uw_Estrings)
adamc@1011	2300 *s2++ = 'E';
adamc@1011	2301 *s2++ = '\'';
adamc@1011	2302
adamc@1011	2303 switch (c) {
adamc@1011	2304 case '\'':
adamc@1011	2305 if (uw_Estrings)
adamc@1011	2306 strcpy(s2, "\\'");
adamc@1011	2307 else
adamc@1011	2308 strcpy(s2, "''");
adamc@1011	2309 s2 += 2;
adamc@1011	2310 break;
adamc@1011	2311 case '\\':
adamc@1011	2312 if (uw_Estrings) {
adamc@1011	2313 strcpy(s2, "\\\\");
adamc@1011	2314 s2 += 2;
adamc@1011	2315 } else
adamc@1011	2316 *s2++ = '\\';
adamc@1011	2317 break;
adamc@1011	2318 default:
adamc@1150	2319 if (isprint((int)c))
adamc@1011	2320 *s2++ = c;
adamc@1011	2321 else if (uw_Estrings) {
adamc@1011	2322 sprintf(s2, "\\%03o", c);
adamc@1011	2323 s2 += 4;
adamc@1011	2324 }
adamc@1011	2325 else
adamc@1011	2326 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2327 }
adamc@1011	2328
adamc@1011	2329 *s2++ = '\'';
adamc@1011	2330 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2331 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2332 return r;
adamc@1011	2333 }
adamc@1011	2334
adamc@879	2335 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2336
adamc@737	2337 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2338 char r, s2;
adamc@737	2339 size_t i;
adamc@737	2340
adamc@879	2341 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737	2342
adamc@737	2343 r = s2 = ctx->heap.front;
adamc@879	2344 if (uw_Estrings)
adamc@879	2345 *s2++ = 'E';
adamc@737	2346 *s2++ = '\'';
adamc@737	2347
adamc@737	2348 for (i = 0; i < b.size; ++i) {
adamc@737	2349 char c = b.data[i];
adamc@737	2350
adamc@737	2351 switch (c) {
adamc@737	2352 case '\'':
adamc@885	2353 if (uw_Estrings)
adamc@885	2354 strcpy(s2, "\\'");
adamc@885	2355 else
adamc@885	2356 strcpy(s2, "''");
adamc@737	2357 s2 += 2;
adamc@737	2358 break;
adamc@737	2359 case '\\':
adamc@885	2360 if (uw_Estrings) {
adamc@885	2361 strcpy(s2, "\\\\\\\\");
adamc@885	2362 s2 += 4;
adamc@885	2363 } else
adamc@885	2364 *s2++ = '\\';
adamc@737	2365 break;
adamc@737	2366 default:
adamc@1150	2367 if (isprint((int)c))
adamc@737	2368 *s2++ = c;
adamc@879	2369 else if (uw_Estrings) {
adamc@737	2370 sprintf(s2, "\\\\%03o", c);
adamc@737	2371 s2 += 5;
adamc@737	2372 }
adamc@879	2373 else
adamc@879	2374 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737	2375 }
adamc@737	2376 }
adamc@737	2377
adamc@879	2378 *s2++ = '\'';
adamc@879	2379 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2380 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2381 return r;
adamc@737	2382 }
adamc@737	2383
adamc@682	2384 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2385 int len;
adamc@682	2386 char *r;
adamc@682	2387 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2388
adamc@682	2389 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2390 r = ctx->heap.front;
adamc@879	2391 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2392 ctx->heap.front += len+1;
adamc@682	2393 return r;
adamc@682	2394 }
adamc@682	2395
adamc@682	2396 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2397 int len;
adamc@682	2398 char *r;
adamc@682	2399 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2400
adamc@682	2401 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2402 r = ctx->heap.front;
adamc@682	2403 sprintf(r, "%lld%n", combo, &len);
adamc@682	2404 ctx->heap.front += len+1;
adamc@682	2405 return r;
adamc@682	2406 }
adamc@682	2407
adamc@879	2408 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2409
adamc@682	2410 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2411 int len;
adamc@682	2412 char *r;
adamc@682	2413
adamc@682	2414 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2415 r = ctx->heap.front;
adamc@879	2416 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2417 ctx->heap.front += len+1;
adamc@682	2418 return r;
adamc@682	2419 }
adamc@682	2420
adamc@682	2421 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2422 int len;
adamc@682	2423 char *r;
adamc@682	2424
adamc@682	2425 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2426 r = ctx->heap.front;
adamc@682	2427 sprintf(r, "%u%n", cli, &len);
adamc@682	2428 ctx->heap.front += len+1;
adamc@682	2429 return r;
adamc@682	2430 }
adamc@682	2431
adamc@467	2432 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2433 if (s == NULL)
adamc@467	2434 return "NULL";
adamc@467	2435 else
adamc@467	2436 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2437 }
adamc@467	2438
adamc@311	2439 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2440 if (b == uw_Basis_False)
adamc@281	2441 return "FALSE";
adamc@281	2442 else
adamc@281	2443 return "TRUE";
adamc@281	2444 }
adamc@282	2445
adamc@467	2446 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2447 if (b == NULL)
adamc@467	2448 return "NULL";
adamc@467	2449 else
adamc@467	2450 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2451 }
adamc@467	2452
adamc@439	2453 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2454 size_t len;
adamc@682	2455 char r, s;
adamc@682	2456 struct tm stm;
adamc@682	2457
adamc@682	2458 if (localtime_r(&t, &stm)) {
adamc@682	2459 s = uw_malloc(ctx, TIMES_MAX);
adamc@682	2460 len = strftime(s, TIMES_MAX, TIME_FMT, &stm);
adamc@682	2461 r = uw_malloc(ctx, len + 14);
adamc@682	2462 sprintf(r, "'%s'::timestamp", s);
adamc@682	2463 return r;
adamc@682	2464 } else
adamc@682	2465 return "<Invalid time>";
adamc@682	2466 }
adamc@682	2467
adamc@682	2468 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2469 size_t len;
adamc@439	2470 char *r;
adamc@439	2471 struct tm stm;
adamc@439	2472
adamc@439	2473 if (localtime_r(&t, &stm)) {
adamc@439	2474 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2475 r = ctx->heap.front;
adamc@439	2476 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2477 ctx->heap.front += len+1;
adamc@439	2478 return r;
adamc@439	2479 } else
adamc@439	2480 return "<Invalid time>";
adamc@439	2481 }
adamc@439	2482
adamc@467	2483 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2484 if (t == NULL)
adamc@467	2485 return "NULL";
adamc@467	2486 else
adamc@467	2487 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2488 }
adamc@467	2489
adamc@311	2490 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2491 static uw_Basis_int true = 1;
adamc@311	2492 static uw_Basis_int false = 0;
adamc@282	2493
adamc@311	2494 if (b == uw_Basis_False)
adamc@282	2495 return (char *)&false;
adamc@282	2496 else
adamc@282	2497 return (char *)&true;
adamc@282	2498 }
adamc@284	2499
adamc@311	2500 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2501 int len;
adamc@284	2502 char *r;
adamc@284	2503
adamc@311	2504 uw_check_heap(ctx, INTS_MAX);
adamc@666	2505 r = ctx->heap.front;
adamc@284	2506 sprintf(r, "%lld%n", n, &len);
adamc@666	2507 ctx->heap.front += len+1;
adamc@284	2508 return r;
adamc@284	2509 }
adamc@285	2510
adamc@311	2511 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2512 int len;
adamc@285	2513 char *r;
adamc@285	2514
adamc@311	2515 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2516 r = ctx->heap.front;
adamc@285	2517 sprintf(r, "%g%n", n, &len);
adamc@666	2518 ctx->heap.front += len+1;
adamc@285	2519 return r;
adamc@285	2520 }
adamc@285	2521
adamc@821	2522 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2523 char *r = uw_malloc(ctx, 2);
adamc@821	2524 r[0] = ch;
adamc@821	2525 r[1] = 0;
adamc@821	2526 return r;
adamc@821	2527 }
adamc@821	2528
adamc@311	2529 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2530 if (b == uw_Basis_False)
adamc@285	2531 return "False";
adamc@285	2532 else
adamc@285	2533 return "True";
adamc@285	2534 }
adamc@288	2535
adamc@436	2536 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436	2537 size_t len;
adamc@436	2538 char *r;
adamc@436	2539 struct tm stm;
adamc@436	2540
adamc@436	2541 if (localtime_r(&t, &stm)) {
adamc@436	2542 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2543 r = ctx->heap.front;
adamc@436	2544 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2545 ctx->heap.front += len+1;
adamc@436	2546 return r;
adamc@436	2547 } else
adamc@436	2548 return "<Invalid time>";
adamc@436	2549 }
adamc@288	2550
adamc@311	2551 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2552 char *endptr;
adamc@311	2553 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2554
adamc@288	2555 if (s != '\0' && endptr == '\0') {
adamc@311	2556 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2557 *r = n;
adamc@288	2558 return r;
adamc@288	2559 } else
adamc@288	2560 return NULL;
adamc@288	2561 }
adamc@289	2562
adamc@311	2563 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2564 char *endptr;
adamc@311	2565 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2566
adamc@289	2567 if (s != '\0' && endptr == '\0') {
adamc@311	2568 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2569 *r = n;
adamc@289	2570 return r;
adamc@289	2571 } else
adamc@289	2572 return NULL;
adamc@289	2573 }
adamc@289	2574
adamc@821	2575 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2576 if (s[0] == 0) {
adamc@821	2577 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2578 r[0] = 0;
adamc@821	2579 return r;
adamc@821	2580 } else if (s[1] != 0)
adamc@821	2581 return NULL;
adamc@821	2582 else {
adamc@821	2583 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2584 r[0] = s[0];
adamc@821	2585 return r;
adamc@821	2586 }
adamc@821	2587 }
adamc@821	2588
adamc@311	2589 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2590 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2591 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2592
adamc@289	2593 if (!strcasecmp (s, "True"))
adamc@289	2594 return &true;
adamc@289	2595 else if (!strcasecmp (s, "False"))
adamc@289	2596 return &false;
adamc@289	2597 else
adamc@289	2598 return NULL;
adamc@289	2599 }
adamc@292	2600
adamc@436	2601 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2602 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2603 struct tm stm;
adamc@436	2604
adamc@439	2605 if (dot) {
adamc@439	2606 *dot = 0;
adamc@439	2607 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2608 *dot = '.';
adamc@439	2609 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2610 *r = mktime(&stm);
adamc@439	2611 return r;
adamc@439	2612 }
adamc@439	2613 else {
adamc@439	2614 *dot = '.';
adamc@439	2615 return NULL;
adamc@439	2616 }
adamc@436	2617 }
adamc@439	2618 else {
adamc@439	2619 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2620 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2621 *r = mktime(&stm);
adamc@439	2622 return r;
adamc@439	2623 }
adamc@439	2624 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2625 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2626 *r = mktime(&stm);
adamc@439	2627 return r;
adamc@439	2628 }
adamc@439	2629 else
adamc@439	2630 return NULL;
adamc@439	2631 }
adamc@436	2632 }
adamc@436	2633
adamc@311	2634 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2635 char *endptr;
adamc@311	2636 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2637
adamc@292	2638 if (s != '\0' && endptr == '\0')
adamc@292	2639 return n;
adamc@292	2640 else
adamc@311	2641 uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292	2642 }
adamc@293	2643
adamc@682	2644 #include <errno.h>
adamc@682	2645
adamc@678	2646 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2647 unsigned long long n;
adamc@682	2648
adamc@682	2649 if (sscanf(s, "%llu", &n) < 1)
adamc@682	2650 uw_error(ctx, FATAL, "Can't parse channel: %s", s);
adamc@682	2651 else {
adamc@682	2652 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2653 return ch;
adamc@682	2654 }
adamc@682	2655 }
adamc@682	2656
adamc@682	2657 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2658 char *endptr;
adamc@682	2659 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2660
adamc@678	2661 if (s != '\0' && endptr == '\0')
adamc@678	2662 return n;
adamc@678	2663 else
adamc@682	2664 uw_error(ctx, FATAL, "Can't parse client: %s", s);
adamc@678	2665 }
adamc@678	2666
adamc@311	2667 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2668 char *endptr;
adamc@311	2669 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2670
adamc@293	2671 if (s != '\0' && endptr == '\0')
adamc@293	2672 return n;
adamc@293	2673 else
adamc@311	2674 uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293	2675 }
adamc@293	2676
adamc@821	2677 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2678 if (s[0] == 0)
adamc@821	2679 return 0;
adamc@821	2680 else if (s[1] != 0)
adamc@821	2681 uw_error(ctx, FATAL, "Can't parse char: %s", s);
adamc@821	2682 else
adamc@821	2683 return s[0];
adamc@821	2684 }
adamc@821	2685
adamc@311	2686 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2687 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2688 return uw_Basis_True;
adamc@296	2689 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2690 return uw_Basis_False;
adamc@293	2691 else
adamc@311	2692 uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293	2693 }
adamc@436	2694
adamc@436	2695 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2696 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2697 struct tm stm = {};
adamc@436	2698
adamc@438	2699 if (dot) {
adamc@438	2700 *dot = 0;
adamc@438	2701 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2702 *dot = '.';
adamc@438	2703 return mktime(&stm);
adamc@438	2704 }
adamc@438	2705 else {
adamc@438	2706 *dot = '.';
adamc@438	2707 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2708 }
adamc@438	2709 }
adamc@438	2710 else {
adamc@439	2711 if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439	2712 return mktime(&stm);
adamc@439	2713 else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438	2714 return mktime(&stm);
adamc@438	2715 else
adamc@438	2716 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2717 }
adamc@436	2718 }
adamc@457	2719
adamc@939	2720 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adamc@939	2721 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@939	2722 struct tm stm = {};
adamc@939	2723
adamc@939	2724 if (dot) {
adamc@939	2725 *dot = 0;
adamc@939	2726 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@939	2727 *dot = '.';
adamc@939	2728 return mktime(&stm);
adamc@939	2729 }
adamc@939	2730 else {
adamc@939	2731 *dot = '.';
adamc@939	2732 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2733 }
adamc@939	2734 }
adamc@939	2735 else {
adamc@939	2736 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@939	2737 return mktime(&stm);
adamc@939	2738 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@939	2739 return mktime(&stm);
adamc@939	2740 } else
adamc@939	2741 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2742 }
adamc@939	2743 }
adamc@939	2744
adamc@742	2745 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	2746 char *r = ctx->heap.front;
adamc@742	2747 uw_Basis_blob b = {len, r};
adamc@742	2748
adamc@742	2749 uw_check_heap(ctx, len);
adamc@742	2750
adamc@742	2751 while (*s) {
adamc@742	2752 if (s[0] == '\\') {
adamc@742	2753 if (s[1] == '\\') {
adamc@742	2754 *r++ = '\\';
adamc@742	2755 s += 2;
adamc@1153	2756 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adamc@742	2757 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	2758 s += 4;
adamc@742	2759 }
adamc@742	2760 else {
adamc@742	2761 *r++ = '\\';
adamc@742	2762 ++s;
adamc@742	2763 }
adamc@742	2764 } else {
adamc@742	2765 *r++ = s[0];
adamc@742	2766 ++s;
adamc@742	2767 }
adamc@742	2768 }
adamc@742	2769
adamc@742	2770 b.size = r - ctx->heap.front;
adamc@742	2771 ctx->heap.front = r;
adamc@742	2772 return b;
adamc@742	2773 }
adamc@742	2774
adamc@1052	2775 #define THE_PAST "expires=Mon, 01-01-1970 00:00:00 GMT"
adamc@1052	2776
adamc@463	2777 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	2778 int len = strlen(c);
adamc@854	2779 char *p = ctx->outHeaders.start;
adamc@474	2780
adamc@1134	2781 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	2782 char *p2;
adamc@474	2783 p += 13;
adamc@474	2784 p2 = strchr(p, '=');
adamc@474	2785
adamc@474	2786 if (p2) {
adamc@474	2787 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	2788
adamc@474	2789 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	2790 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	2791 return NULL;
adamc@1052	2792 else {
adamc@1052	2793 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	2794 memcpy(ret, p2+1, sz);
adamc@1052	2795 ret[sz] = 0;
adamc@1052	2796 return ret;
adamc@1052	2797 }
adamc@474	2798 }
adamc@474	2799 }
adamc@474	2800 }
adamc@463	2801
adamc@1134	2802 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	2803 char *p2;
adamc@1051	2804
adamc@854	2805 while (1) {
adamc@1051	2806 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	2807 if ((p2 = strchr(p, ';'))) {
adamc@1051	2808 size_t n = p2 - (p + len);
adamc@1051	2809 char *r = uw_malloc(ctx, n);
adamc@1051	2810 memcpy(r, p + 1 + len, n-1);
adamc@1051	2811 r[n-1] = 0;
adamc@1051	2812 return r;
adamc@1051	2813 } else
adamc@1051	2814 return p + 1 + len;
adamc@1134	2815 } else if ((p = strchr(p, ';')))
adamc@854	2816 p += 2;
adamc@463	2817 else
adamc@463	2818 return NULL;
adamc@463	2819 }
adamc@463	2820 }
adamc@792	2821
adamc@792	2822 return NULL;
adamc@457	2823 }
adamc@462	2824
adamc@1050	2825 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	2826 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	2827 uw_write_header(ctx, c);
adamc@462	2828 uw_write_header(ctx, "=");
adamc@462	2829 uw_write_header(ctx, v);
adamc@466	2830 uw_write_header(ctx, "; path=");
adamc@466	2831 uw_write_header(ctx, prefix);
adamc@1050	2832 if (expires) {
adamc@1050	2833 char formatted[30];
adamc@1050	2834 struct tm tm;
adamc@1050	2835
adamc@1050	2836 gmtime_r(expires, &tm);
adamc@1050	2837
adamc@1050	2838 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	2839
adamc@1050	2840 uw_write_header(ctx, "; expires=");
adamc@1050	2841 uw_write_header(ctx, formatted);
adamc@1050	2842 }
adamc@1050	2843 if (secure)
adamc@1050	2844 uw_write_header(ctx, "; secure");
adamc@462	2845 uw_write_header(ctx, "\r\n");
adamc@462	2846
adamc@462	2847 return uw_unit_v;
adamc@462	2848 }
adamc@667	2849
adamc@1050	2850 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	2851 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	2852 uw_write_header(ctx, c);
adamc@1050	2853 uw_write_header(ctx, "=; path=");
adamc@1050	2854 uw_write_header(ctx, prefix);
adamc@1052	2855 uw_write_header(ctx, "; " THE_PAST "\r\n");
adamc@1050	2856
adamc@1050	2857 return uw_unit_v;
adamc@1050	2858 }
adamc@1050	2859
adamc@1113	2860 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	2861
adamc@682	2862 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	2863 unsigned i;
adamc@682	2864 delta *d;
adamc@671	2865
adamc@682	2866 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	2867 if (ctx->deltas[i].client == client)
adamc@682	2868 return &ctx->deltas[i];
adamc@671	2869
adamc@682	2870 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	2871 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	2872 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	2873
adamc@682	2874 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adamc@1113	2875 buf_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	2876 }
adamc@671	2877
adamc@682	2878 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	2879 d->client = client;
adamc@682	2880 buf_reset(&d->msgs);
adamc@682	2881 return d;
adamc@671	2882 }
adamc@671	2883
adamc@668	2884 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	2885 if (ctx->client == NULL)
adamc@682	2886 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	2887
adamc@682	2888 return new_channel(ctx->client);
adamc@668	2889 }
adamc@668	2890
adamc@668	2891 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	2892 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	2893 size_t len;
adamc@682	2894 int preLen;
adamc@682	2895 char pre[INTS_MAX + 2];
adamc@668	2896
adamc@682	2897 len = strlen(msg);
adamc@682	2898
adamc@682	2899 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	2900
adamc@1113	2901 ctx_buf_append(ctx, "messages", &d->msgs, pre, preLen);
adamc@1113	2902 ctx_buf_append(ctx, "messages", &d->msgs, msg, len);
adamc@1113	2903 ctx_buf_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	2904
adamc@671	2905 return uw_unit_v;
adamc@668	2906 }
adamc@671	2907
adam@1327	2908 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	2909 int i;
adamc@1131	2910 cleanup *cl;
adamc@1131	2911
adamc@1131	2912 if (ctx->client)
adamc@1131	2913 release_client(ctx->client);
adamc@1131	2914
adamc@1131	2915 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	2916 cl->func(cl->arg);
adamc@1131	2917
adamc@1131	2918 ctx->cleanup_front = ctx->cleanup;
adamc@1131	2919
adamc@1131	2920 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	2921 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	2922 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	2923
adamc@1131	2924 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	2925 if (ctx->transactionals[i].free)
adam@1327	2926 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	2927
adamc@1144	2928 return ctx->app ? ctx->app->db_rollback(ctx) : 0;
adamc@1131	2929 }
adamc@1131	2930
adamc@671	2931 void uw_commit(uw_context ctx) {
adamc@1104	2932 int i;
adamc@1104	2933
adamc@1131	2934 if (uw_has_error(ctx)) {
adam@1327	2935 uw_rollback(ctx, 0);
adamc@1131	2936 return;
adamc@1131	2937 }
adamc@1131	2938
adamc@1104	2939 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	2940 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	2941 if (ctx->transactionals[i].commit) {
adamc@1083	2942 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	2943 if (uw_has_error(ctx)) {
adam@1327	2944 uw_rollback(ctx, 0);
adamc@1131	2945 return;
adamc@1131	2946 }
adamc@1131	2947 }
adamc@771	2948
adamc@1104	2949 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	2950 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	2951 if (ctx->transactionals[i].commit) {
adamc@1083	2952 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	2953 if (uw_has_error(ctx)) {
adam@1327	2954 uw_rollback(ctx, 0);
adamc@1131	2955 return;
adamc@1131	2956 }
adamc@1131	2957 }
adamc@1131	2958
adamc@1131	2959 if (ctx->app->db_commit(ctx)) {
adamc@1131	2960 uw_set_error_message(ctx, "Error running SQL COMMIT");
adamc@1131	2961 return;
adamc@1131	2962 }
adamc@682	2963
adamc@682	2964 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	2965 delta *d = &ctx->deltas[i];
adamc@682	2966 client *c = find_client(d->client);
adamc@682	2967
adamc@682	2968 assert (c != NULL && c->mode == USED);
adamc@682	2969
adamc@685	2970 client_send(c, &d->msgs);
adamc@682	2971 }
adamc@682	2972
adamc@682	2973 if (ctx->client)
adamc@685	2974 release_client(ctx->client);
adamc@771	2975
adamc@1104	2976 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	2977 if (ctx->transactionals[i].free)
adam@1327	2978 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	2979
adamc@916	2980 // Splice script data into appropriate part of page
adamc@1065	2981 if (ctx->returning_indirectly \|\| ctx->script_header[0] == 0) {
adamc@995	2982 char *start = strstr(ctx->page.start, "<sc>");
adamc@995	2983 if (start) {
adamc@995	2984 memmove(start, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 4);
adamc@995	2985 ctx->page.front -= 4;
adamc@995	2986 }
adamc@995	2987 } else if (buf_used(&ctx->script) == 0) {
adamc@916	2988 size_t len = strlen(ctx->script_header);
adamc@916	2989 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2990 if (start) {
adamc@1113	2991 ctx_buf_check(ctx, "page", &ctx->page, buf_used(&ctx->page) - 4 + len);
adamc@917	2992 start = strstr(ctx->page.start, "<sc>");
adamc@916	2993 memmove(start + len, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2994 ctx->page.front += len - 4;
adamc@916	2995 memcpy(start, ctx->script_header, len);
adamc@916	2996 }
adamc@916	2997 } else {
adamc@916	2998 size_t lenH = strlen(ctx->script_header), len = buf_used(&ctx->script);
adamc@916	2999 size_t lenP = lenH + 40 + len;
adamc@916	3000 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	3001 if (start) {
adamc@1113	3002 ctx_buf_check(ctx, "page", &ctx->page, buf_used(&ctx->page) - 4 + lenP);
adamc@917	3003 start = strstr(ctx->page.start, "<sc>");
adamc@916	3004 memmove(start + lenP, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	3005 ctx->page.front += lenP - 4;
adamc@916	3006 memcpy(start, ctx->script_header, lenH);
adamc@916	3007 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916	3008 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916	3009 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916	3010 }
adamc@916	3011 }
adamc@671	3012 }
adamc@671	3013
adamc@683	3014
adamc@1113	3015 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3016
adamc@771	3017 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3018 uw_callback_with_retry free) {
adamc@771	3019 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3020 if (ctx->used_transactionals+1 > uw_transactionals_max)
adamc@1113	3021 uw_error(ctx, FATAL, "Exceeded limit on number of transactionals");
adamc@1084	3022 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3023 ++ctx->n_transactionals;
adamc@771	3024 }
adamc@771	3025
adamc@771	3026 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3027 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3028 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3029 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	3030 }
adamc@771	3031
adamc@683	3032
adamc@683	3033 // "Garbage collection"
adamc@683	3034
adamc@1121	3035 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3036 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3037
adamc@1121	3038 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3039 int r = setjmp(ctx->jmp_buf);
adamc@683	3040
adamc@1121	3041 if (r == 0)
adamc@1121	3042 uw_do_expunge(ctx, cli, data);
adamc@1121	3043 else
adamc@1121	3044 ctx->app->db_rollback(ctx);
adamc@1121	3045
adamc@1121	3046 uw_post_expunge(ctx, data);
adamc@683	3047
adamc@683	3048 return r;
adamc@683	3049 }
adamc@683	3050
adamc@683	3051 void uw_prune_clients(uw_context ctx) {
adamc@683	3052 client c, next, *prev = NULL;
adamc@683	3053 time_t cutoff;
adamc@683	3054
adamc@1094	3055 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3056
adamc@683	3057 pthread_mutex_lock(&clients_mutex);
adamc@683	3058
adamc@683	3059 for (c = clients_used; c; c = next) {
adamc@683	3060 next = c->next;
adamc@683	3061 pthread_mutex_lock(&c->lock);
adamc@685	3062 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3063 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3064 if (prev)
adamc@683	3065 prev->next = next;
adamc@683	3066 else
adamc@683	3067 clients_used = next;
adamc@684	3068 uw_reset(ctx);
adamc@683	3069 while (fk == UNLIMITED_RETRY) {
adamc@1121	3070 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3071 if (fk == UNLIMITED_RETRY)
adamc@684	3072 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3073 }
adamc@684	3074 if (fk == SUCCESS)
adamc@684	3075 free_client(c);
adamc@1121	3076 else
adamc@856	3077 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3078 }
adamc@683	3079 else
adamc@683	3080 prev = c;
adamc@683	3081 pthread_mutex_unlock(&c->lock);
adamc@683	3082 }
adamc@683	3083
adamc@683	3084 pthread_mutex_unlock(&clients_mutex);
adamc@683	3085 }
adamc@687	3086
adamc@687	3087 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3088 int r = setjmp(ctx->jmp_buf);
adamc@687	3089
adamc@687	3090 if (r == 0) {
adamc@1094	3091 if (ctx->app->db_begin(ctx))
adamc@687	3092 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@1094	3093 ctx->app->initializer(ctx);
adamc@1094	3094 if (ctx->app->db_commit(ctx))
adamc@687	3095 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3096 }
adamc@687	3097
adamc@687	3098 return r;
adamc@687	3099 }
adamc@717	3100
adamc@1065	3101 static int url_bad(uw_Basis_string s) {
adamc@1065	3102 for (; *s; ++s)
adamc@1153	3103 if (!isgraph((int)*s))
adamc@1065	3104 return 1;
adamc@1065	3105
adamc@1065	3106 return 0;
adamc@1065	3107 }
adamc@1065	3108
adamc@717	3109 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3110 if (url_bad(s))
adamc@1065	3111 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3112 if (ctx->app->check_url(s))
adamc@770	3113 return s;
adamc@770	3114 else
adamc@770	3115 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3116 }
adamc@734	3117
adamc@770	3118 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3119 if (url_bad(s))
adamc@1065	3120 return NULL;
adamc@1094	3121 if (ctx->app->check_url(s))
adamc@770	3122 return s;
adamc@770	3123 else
adamc@770	3124 return NULL;
adamc@770	3125 }
adamc@770	3126
adamc@770	3127 int mime_format(const char *s) {
adamc@770	3128 for (; *s; ++s)
adamc@1153	3129 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.')
adamc@770	3130 return 0;
adamc@770	3131
adamc@770	3132 return 1;
adamc@770	3133 }
adamc@770	3134
adamc@741	3135 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3136 if (!mime_format(s))
adamc@770	3137 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3138
adamc@1094	3139 if (ctx->app->check_mime(s))
adamc@770	3140 return s;
adamc@770	3141 else
adamc@770	3142 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3143 }
adamc@770	3144
adamc@770	3145 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3146 if (!mime_format(s))
adamc@770	3147 return NULL;
adamc@770	3148
adamc@1094	3149 if (ctx->app->check_mime(s))
adamc@770	3150 return s;
adamc@770	3151 else
adamc@770	3152 return NULL;
adamc@741	3153 }
adamc@741	3154
adamc@734	3155 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3156 return s ? s : "";
adamc@734	3157 }
adamc@734	3158
adamc@734	3159 extern int uw_hash_blocksize;
adamc@734	3160
adamc@734	3161 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3162 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3163 int i;
adamc@734	3164
adamc@734	3165 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3166 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3167
adamc@734	3168 return r;
adamc@734	3169 }
adamc@734	3170
adamc@734	3171 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@1094	3172 return ctx->app->cookie_sig(ctx);
adamc@734	3173 }
adamc@737	3174
adamc@737	3175 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3176 return f.name;
adamc@737	3177 }
adamc@737	3178
adamc@740	3179 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3180 return f.type;
adamc@740	3181 }
adamc@740	3182
adamc@745	3183 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3184 return b.size;
adamc@745	3185 }
adamc@745	3186
adamc@1119	3187 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3188 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3189
adamc@1119	3190 return b;
adamc@1119	3191 }
adamc@1119	3192
adamc@737	3193 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3194 return f.data;
adamc@737	3195 }
adamc@741	3196
adamc@741	3197 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3198 cleanup *cl;
adamc@741	3199 int len;
adamc@741	3200
adamc@1065	3201 ctx->returning_indirectly = 1;
adamc@741	3202 buf_reset(&ctx->outHeaders);
adamc@741	3203 buf_reset(&ctx->page);
adamc@741	3204
adamc@856	3205 uw_write_header(ctx, on_success);
adamc@856	3206 uw_write_header(ctx, "Content-Type: ");
adamc@741	3207 uw_write_header(ctx, mimeType);
adamc@741	3208 uw_write_header(ctx, "\r\nContent-Length: ");
adamc@1113	3209 ctx_buf_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3210 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3211 ctx->outHeaders.front += len;
adamc@1066	3212 uw_write_header(ctx, "\r\n");
adamc@741	3213
adamc@1113	3214 ctx_buf_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3215
adamc@741	3216 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3217 cl->func(cl->arg);
adamc@741	3218
adamc@741	3219 ctx->cleanup_front = ctx->cleanup;
adamc@741	3220
adamc@1065	3221 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3222 }
adamc@1065	3223
adamc@1065	3224 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3225 cleanup *cl;
adamc@1066	3226 char *s;
adamc@1065	3227
adamc@1065	3228 ctx->returning_indirectly = 1;
adamc@1066	3229 buf_reset(&ctx->page);
adamc@1113	3230 ctx_buf_check(ctx, "page", &ctx->page, buf_used(&ctx->outHeaders)+1);
adamc@1066	3231 memcpy(ctx->page.start, ctx->outHeaders.start, buf_used(&ctx->outHeaders));
adamc@1066	3232 ctx->page.start[buf_used(&ctx->outHeaders)] = 0;
adamc@1065	3233 buf_reset(&ctx->outHeaders);
adamc@1065	3234
adamc@1065	3235 uw_write_header(ctx, on_redirect);
adamc@1066	3236
adamc@1066	3237 s = strchr(ctx->page.start, '\n');
adamc@1066	3238 if (s) {
adamc@1066	3239 char *s2;
adamc@1134	3240 for (++s; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3241 *s2 = 0;
adamc@1066	3242 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3243 uw_write_header(ctx, s);
adamc@1066	3244 uw_write_header(ctx, "\n");
adamc@1066	3245 }
adamc@1066	3246 }
adamc@1066	3247 }
adamc@1066	3248
adamc@1065	3249 uw_write_header(ctx, "Location: ");
adamc@1065	3250 uw_write_header(ctx, url);
adamc@1065	3251 uw_write_header(ctx, "\r\n\r\n");
adamc@1065	3252
adamc@1065	3253 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3254 cl->func(cl->arg);
adamc@1065	3255
adamc@1065	3256 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3257
adamc@1065	3258 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3259 }
adamc@874	3260
adamc@874	3261 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adamc@874	3262 uw_Basis_string r = uw_malloc(ctx, strlen(s) + 1);
adamc@874	3263
adamc@874	3264 for (; *s; ++s) {
adamc@874	3265 if (s[0] == '\'') {
adamc@874	3266 *r++ = '\'';
adamc@874	3267 for (++s; *s; ++s) {
adamc@874	3268 if (s[0] == '\'') {
adamc@874	3269 *r++ = '\'';
adamc@874	3270 break;
adamc@874	3271 } else if (s[0] == '\\') {
adamc@874	3272 if (s[1] == '\\') {
adamc@874	3273 *r++ = '\\';
adamc@874	3274 *r++ = '\\';
adamc@874	3275 ++s;
adamc@874	3276 } else if (s[1] == '\'') {
adamc@874	3277 *r++ = '\\';
adamc@874	3278 *r++ = '\'';
adamc@874	3279 ++s;
adamc@874	3280 } else
adamc@874	3281 *r++ = '\'';
adamc@874	3282 } else
adamc@874	3283 *r++ = s[0];
adamc@874	3284 }
adamc@874	3285 if (*s == 0) break;
adamc@874	3286 } else if (s[0] == 'T' && s[1] == '.')
adamc@874	3287 ++s;
adamc@874	3288 else
adamc@874	3289 *r++ = s[0];
adamc@874	3290 }
adamc@874	3291
adamc@874	3292 return r;
adamc@874	3293 }
adamc@874	3294
adamc@922	3295 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3296 va_list ap;
adamc@922	3297 size_t len = 1;
adamc@922	3298 char s, r, *s2;
adamc@922	3299
adamc@922	3300 va_start(ap, ctx);
adamc@922	3301 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3302 len += strlen(s);
adamc@922	3303 va_end(ap);
adamc@922	3304
adamc@922	3305 r = uw_malloc(ctx, len);
adamc@922	3306 va_start(ap, ctx);
adamc@922	3307 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3308 while (*s)
adamc@922	3309 s2++ = s++;
adamc@922	3310 va_end(ap);
adamc@922	3311 *s2 = 0;
adamc@922	3312
adamc@922	3313 return r;
adamc@922	3314 }
adamc@1006	3315
adamc@1050	3316 const uw_Basis_time minTime = 0;
adamc@1050	3317
adamc@1006	3318 uw_Basis_time uw_Basis_now(uw_context ctx) {
adamc@1006	3319 return time(NULL);
adamc@1006	3320 }
adamc@1061	3321
adamc@1138	3322 uw_Basis_time uw_Basis_minusSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adamc@1138	3323 return tm - n;
adamc@1138	3324 }
adamc@1138	3325
adamc@1061	3326 void uw_get_global(uw_context ctx, char name) {
adamc@1061	3327 int i;
adamc@1061	3328
adamc@1061	3329 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3330 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	3331 return ctx->globals[i].data;
adamc@1061	3332
adamc@1061	3333 return NULL;
adamc@1061	3334 }
adamc@1061	3335
adamc@1113	3336 size_t uw_globals_max = SIZE_MAX;
adamc@1113	3337
adamc@1061	3338 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	3339 int i;
adamc@1061	3340
adamc@1061	3341 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3342 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	3343 if (ctx->globals[i].free)
adamc@1061	3344 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	3345 ctx->globals[i].data = data;
adamc@1061	3346 ctx->globals[i].free = free;
adamc@1061	3347 return;
adamc@1061	3348 }
adamc@1089	3349
adamc@1113	3350 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	3351 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	3352
adamc@1061	3353 ++ctx->n_globals;
adamc@1061	3354 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	3355 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	3356 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	3357 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	3358 }
adamc@1061	3359
adamc@1061	3360 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	3361 return !!isalnum((int)c);
adamc@1061	3362 }
adamc@1061	3363
adamc@1061	3364 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	3365 return !!isalpha((int)c);
adamc@1061	3366 }
adamc@1061	3367
adamc@1061	3368 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	3369 return !!isblank((int)c);
adamc@1061	3370 }
adamc@1061	3371
adamc@1061	3372 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	3373 return !!iscntrl((int)c);
adamc@1061	3374 }
adamc@1061	3375
adamc@1061	3376 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3377 return !!isdigit((int)c);
adamc@1061	3378 }
adamc@1061	3379
adamc@1061	3380 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	3381 return !!isgraph((int)c);
adamc@1061	3382 }
adamc@1061	3383
adamc@1061	3384 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3385 return !!islower((int)c);
adamc@1061	3386 }
adamc@1061	3387
adamc@1061	3388 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	3389 return !!isprint((int)c);
adamc@1061	3390 }
adamc@1061	3391
adamc@1061	3392 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	3393 return !!ispunct((int)c);
adamc@1061	3394 }
adamc@1061	3395
adamc@1061	3396 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	3397 return !!isspace((int)c);
adamc@1061	3398 }
adamc@1063	3399
adamc@1061	3400 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3401 return !!isupper((int)c);
adamc@1061	3402 }
adamc@1061	3403
adamc@1061	3404 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3405 return !!isxdigit((int)c);
adamc@1061	3406 }
adamc@1061	3407
adamc@1061	3408 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3409 return tolower((int)c);
adamc@1061	3410 }
adamc@1061	3411
adamc@1061	3412 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3413 return toupper((int)c);
adamc@1061	3414 }
adamc@1066	3415
adamc@1128	3416 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	3417 return (unsigned char)c;
adamc@1128	3418 }
adamc@1128	3419
adamc@1128	3420 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	3421 return n;
adamc@1128	3422 }
adamc@1128	3423
adamc@1066	3424 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	3425 return ctx->current_url;
adamc@1066	3426 }
adamc@1066	3427
adamc@1066	3428 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	3429 ctx->current_url = s;
adamc@1066	3430 }
adamc@1114	3431
adamc@1114	3432 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	3433 ctx->deadline = n;
adamc@1114	3434 }
adamc@1114	3435
adamc@1114	3436 void uw_check_deadline(uw_context ctx) {
adamc@1114	3437 if (uw_time > ctx->deadline)
adamc@1114	3438 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	3439 }
adamc@1115	3440
adamc@1115	3441 size_t uw_database_max = SIZE_MAX;
adamc@1120	3442
adamc@1120	3443 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
adamc@1120	3444 fprintf(stderr, "%s\n", s);
adamc@1120	3445
adamc@1120	3446 return uw_unit_v;
adamc@1120	3447 }
adamc@1250	3448
adamc@1250	3449 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adamc@1250	3450 uw_Basis_int n = abs(rand());
adamc@1250	3451 return n;
adamc@1250	3452 }

Mercurial > urweb

annotate src/c/urweb.c @ 1332:4dd5d23bace2