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

annotate src/c/urweb.c @ 1451:b6ce8ef0ea88

Before allowing an indirect return, check (dynamically, for now) that we aren't in an RPC handler

author	Adam Chlipala <adam@chlipala.net>
date	Sun, 17 Apr 2011 13:43:00 -0400
parents	0982f0242776
children	aa2398e58306

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>
adam@1397	16 #include <openssl/des.h>
adam@1374	17 #include <time.h>
adamc@102	18
adamc@667	19 #include <pthread.h>
adamc@667	20
adamc@102	21 #include "types.h"
adamc@102	22
adam@1431	23 uw_unit uw_unit_v = 0;
adamc@102	24
adamc@667	25
adamc@667	26 // Socket extras
adamc@667	27
adamc@863	28 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667	29 while (len > 0) {
adamc@856	30 ssize_t n = send(sock, buf, len, 0);
adamc@856	31
adamc@856	32 if (n < 0)
adamc@856	33 return n;
adamc@856	34
adamc@856	35 buf += n;
adamc@856	36 len -= n;
adamc@856	37 }
adamc@856	38
adamc@856	39 return 0;
adamc@856	40 }
adamc@856	41
adamc@856	42 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856	43 while (len > 0) {
adamc@856	44 ssize_t n = write(fd, buf, len);
adamc@667	45
adamc@667	46 if (n < 0)
adamc@667	47 return n;
adamc@667	48
adamc@667	49 buf += n;
adamc@667	50 len -= n;
adamc@667	51 }
adamc@667	52
adamc@667	53 return 0;
adamc@667	54 }
adamc@667	55
adamc@667	56
adamc@667	57 // Buffers
adamc@667	58
adam@1369	59 void uw_buffer_init(size_t max, uw_buffer *b, size_t s) {
adamc@1113	60 b->max = max;
adamc@667	61 b->front = b->start = malloc(s);
adamc@667	62 b->back = b->front + s;
adamc@667	63 }
adamc@667	64
adam@1369	65 void uw_buffer_free(uw_buffer *b) {
adamc@667	66 free(b->start);
adamc@667	67 }
adamc@667	68
adam@1369	69 void uw_buffer_reset(uw_buffer *b) {
adamc@667	70 b->front = b->start;
adamc@667	71 }
adamc@667	72
adam@1369	73 int uw_buffer_check(uw_buffer *b, size_t extra) {
adamc@667	74 if (b->back - b->front < extra) {
adamc@667	75 size_t desired = b->front - b->start + extra, next;
adamc@667	76 char *new_heap;
adamc@667	77
adamc@667	78 next = b->back - b->start;
adamc@667	79 if (next == 0)
adamc@667	80 next = 1;
adamc@667	81 for (; next < desired; next *= 2);
adamc@667	82
adamc@1134	83 if (next > b->max) {
adamc@1113	84 if (desired <= b->max)
adamc@1113	85 next = desired;
adamc@1113	86 else
adamc@1113	87 return 1;
adamc@1134	88 }
adamc@1113	89
adamc@667	90 new_heap = realloc(b->start, next);
adamc@667	91 b->front = new_heap + (b->front - b->start);
adamc@667	92 b->back = new_heap + next;
adamc@667	93 b->start = new_heap;
adamc@667	94 }
adamc@1113	95
adamc@1113	96 return 0;
adamc@1113	97 }
adamc@1113	98
adamc@1113	99 __attribute__((noreturn)) void uw_error(uw_context, failure_kind, const char *, ...);
adamc@1113	100
adam@1369	101 static void ctx_uw_buffer_check(uw_context ctx, const char kind, uw_buffer b, size_t extra) {
adam@1369	102 if (uw_buffer_check(b, extra))
adamc@1113	103 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@667	104 }
adamc@667	105
adam@1369	106 size_t uw_buffer_used(uw_buffer *b) {
adamc@667	107 return b->front - b->start;
adamc@667	108 }
adamc@667	109
adam@1369	110 size_t uw_buffer_avail(uw_buffer *b) {
adamc@667	111 return b->back - b->start;
adamc@667	112 }
adamc@667	113
adam@1369	114 int uw_buffer_append(uw_buffer b, const char s, size_t len) {
adam@1369	115 if (uw_buffer_check(b, len+1))
adamc@1113	116 return 1;
adamc@1113	117
adamc@1113	118 memcpy(b->front, s, len);
adamc@1113	119 b->front += len;
adamc@1113	120 *b->front = 0;
adamc@1113	121
adamc@1113	122 return 0;
adamc@1113	123 }
adamc@1113	124
adam@1369	125 static void ctx_uw_buffer_append(uw_context ctx, const char kind, uw_buffer b, const char *s, size_t len) {
adam@1369	126 ctx_uw_buffer_check(ctx, kind, b, len+1);
adamc@1113	127
adamc@668	128 memcpy(b->front, s, len);
adamc@668	129 b->front += len;
adamc@672	130 *b->front = 0;
adamc@668	131 }
adamc@667	132
adamc@668	133
adamc@672	134 // Persistent state types
adamc@667	135
adamc@667	136 typedef enum { UNUSED, USED } usage;
adamc@667	137
adamc@667	138 typedef struct client {
adamc@682	139 unsigned id;
adamc@667	140 usage mode;
adamc@682	141 int pass;
adamc@682	142 struct client *next;
adamc@689	143 pthread_mutex_t lock, pull_lock;
adam@1369	144 uw_buffer msgs;
adamc@682	145 int sock;
adamc@863	146 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	147 int (*close)(int fd);
adamc@682	148 time_t last_contact;
adamc@682	149 unsigned n_channels;
adamc@685	150 unsigned refcount;
adamc@1121	151 void *data;
adamc@667	152 } client;
adamc@667	153
adamc@672	154
adamc@672	155 // Persistent client state
adamc@672	156
adamc@682	157 static client *clients, clients_free, *clients_used;
adamc@682	158 static unsigned n_clients;
adamc@667	159
adamc@667	160 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@667	161
adamc@1113	162 size_t uw_messages_max = SIZE_MAX;
adamc@1113	163 size_t uw_clients_max = SIZE_MAX;
adamc@1113	164
adamc@1121	165 void *uw_init_client_data();
adamc@1121	166 void uw_free_client_data(void *);
adamc@1121	167 void uw_copy_client_data(void dst, void src);
adamc@1121	168
adamc@682	169 static client *new_client() {
adamc@667	170 client *c;
adamc@667	171
adamc@667	172 pthread_mutex_lock(&clients_mutex);
adamc@667	173
adamc@667	174 if (clients_free) {
adamc@667	175 c = clients_free;
adamc@682	176 clients_free = clients_free->next;
adamc@667	177 }
adamc@1113	178 else if (n_clients >= uw_clients_max)
adamc@1113	179 return NULL;
adamc@667	180 else {
adamc@667	181 ++n_clients;
adamc@667	182 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	183 c = malloc(sizeof(client));
adamc@667	184 c->id = n_clients-1;
adamc@682	185 pthread_mutex_init(&c->lock, NULL);
adamc@689	186 pthread_mutex_init(&c->pull_lock, NULL);
adam@1369	187 uw_buffer_init(uw_messages_max, &c->msgs, 0);
adamc@667	188 clients[n_clients-1] = c;
adamc@667	189 }
adamc@667	190
adamc@682	191 pthread_mutex_lock(&c->lock);
adamc@667	192 c->mode = USED;
adamc@682	193 c->pass = rand();
adamc@682	194 c->sock = -1;
adamc@682	195 c->last_contact = time(NULL);
adam@1369	196 uw_buffer_reset(&c->msgs);
adamc@682	197 c->n_channels = 0;
adamc@685	198 c->refcount = 0;
adamc@1121	199 c->data = uw_init_client_data();
adamc@682	200 pthread_mutex_unlock(&c->lock);
adamc@682	201
adamc@682	202 c->next = clients_used;
adamc@682	203 clients_used = c;
adamc@667	204
adamc@667	205 pthread_mutex_unlock(&clients_mutex);
adamc@667	206
adamc@667	207 return c;
adamc@667	208 }
adamc@667	209
adamc@685	210 static void use_client(client *c) {
adamc@685	211 pthread_mutex_lock(&c->lock);
adamc@685	212 ++c->refcount;
adamc@685	213 pthread_mutex_unlock(&c->lock);
adamc@689	214 pthread_mutex_lock(&c->pull_lock);
adamc@685	215 }
adamc@685	216
adamc@685	217 static void release_client(client *c) {
adamc@689	218 pthread_mutex_unlock(&c->pull_lock);
adamc@685	219 pthread_mutex_lock(&c->lock);
adamc@685	220 --c->refcount;
adamc@685	221 pthread_mutex_unlock(&c->lock);
adamc@689	222
adamc@685	223 }
adamc@685	224
adamc@856	225 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adamc@667	226
adamc@682	227 static client *find_client(unsigned id) {
adamc@667	228 client *c;
adamc@667	229
adamc@667	230 pthread_mutex_lock(&clients_mutex);
adamc@667	231
adamc@667	232 if (id >= n_clients) {
adamc@667	233 pthread_mutex_unlock(&clients_mutex);
adamc@668	234 return NULL;
adamc@667	235 }
adamc@667	236
adamc@667	237 c = clients[id];
adamc@667	238
adamc@668	239 pthread_mutex_unlock(&clients_mutex);
adamc@668	240 return c;
adamc@668	241 }
adamc@668	242
adamc@856	243 static char *on_success = "HTTP/1.1 200 OK\r\n";
adam@1409	244 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	245
adamc@856	246 void uw_set_on_success(char *s) {
adamc@856	247 on_success = s;
adamc@856	248 }
adamc@856	249
adamc@863	250 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	251 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	252 int (*close)(int fd),
adamc@864	253 void *logger_data, uw_logger log_error) {
adamc@682	254 client *c = find_client(id);
adamc@668	255
adamc@668	256 if (c == NULL) {
adamc@667	257 close(sock);
adamc@864	258 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	259 return;
adamc@667	260 }
adamc@667	261
adamc@682	262 pthread_mutex_lock(&c->lock);
adamc@671	263
adamc@682	264 if (c->mode != USED) {
adamc@682	265 pthread_mutex_unlock(&c->lock);
adamc@667	266 close(sock);
adamc@864	267 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	268 return;
adamc@667	269 }
adamc@667	270
adamc@682	271 if (pass != c->pass) {
adamc@682	272 pthread_mutex_unlock(&c->lock);
adamc@682	273 close(sock);
adamc@864	274 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	275 return;
adamc@667	276 }
adamc@667	277
adamc@682	278 if (c->sock != -1) {
adamc@863	279 c->close(c->sock);
adamc@682	280 c->sock = -1;
adamc@682	281 }
adamc@667	282
adamc@682	283 c->last_contact = time(NULL);
adamc@682	284
adam@1369	285 if (uw_buffer_used(&c->msgs) > 0) {
adamc@863	286 send(sock, on_success, strlen(on_success));
adamc@863	287 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1369	288 send(sock, c->msgs.start, uw_buffer_used(&c->msgs));
adam@1369	289 uw_buffer_reset(&c->msgs);
adamc@667	290 close(sock);
adamc@667	291 }
adamc@863	292 else {
adamc@682	293 c->sock = sock;
adamc@863	294 c->send = send;
adamc@863	295 c->close = close;
adamc@863	296 }
adamc@667	297
adamc@682	298 pthread_mutex_unlock(&c->lock);
adamc@667	299 }
adamc@667	300
adamc@682	301 static void free_client(client *c) {
adamc@682	302 c->mode = UNUSED;
adamc@682	303 c->pass = -1;
adamc@667	304
adamc@682	305 c->next = clients_free;
adamc@682	306 clients_free = c;
adamc@667	307 }
adamc@667	308
adamc@682	309 static uw_Basis_channel new_channel(client *c) {
adamc@682	310 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	311 return ch;
adamc@668	312 }
adamc@668	313
adam@1447	314 static void client_send(client c, uw_buffer msg, const char *script, int script_len) {
adamc@685	315 pthread_mutex_lock(&c->lock);
adamc@671	316
adamc@682	317 if (c->sock != -1) {
adamc@863	318 c->send(c->sock, on_success, strlen(on_success));
adamc@863	319 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1447	320 if (script_len > 0) {
adam@1447	321 c->send(c->sock, "E\n", 2);
adam@1447	322 c->send(c->sock, script, script_len);
adam@1447	323 c->send(c->sock, "\n", 1);
adam@1447	324 }
adam@1369	325 c->send(c->sock, msg->start, uw_buffer_used(msg));
adamc@863	326 c->close(c->sock);
adamc@682	327 c->sock = -1;
adam@1447	328 } else if ((script_len > 0
adam@1447	329 && (c->send(c->sock, "E\n", 2)
adam@1447	330 \|\| c->send(c->sock, script, script_len)
adam@1447	331 \|\| c->send(c->sock, "\n", 1)))
adam@1447	332 \|\| uw_buffer_append(&c->msgs, msg->start, uw_buffer_used(msg)))
adamc@1113	333 fprintf(stderr, "Client message buffer size exceeded");
adamc@671	334
adamc@685	335 pthread_mutex_unlock(&c->lock);
adamc@668	336 }
adamc@668	337
adamc@668	338
adamc@668	339 // Global entry points
adamc@668	340
adamc@1164	341 extern void uw_global_custom();
adamc@1104	342 extern void uw_init_crypto();
adamc@1104	343
adamc@668	344 void uw_global_init() {
adamc@668	345 srand(time(NULL) ^ getpid());
adamc@668	346
adamc@668	347 clients = malloc(0);
adamc@1104	348
adamc@1164	349 uw_global_custom();
adamc@1104	350 uw_init_crypto();
adamc@1094	351 }
adamc@1094	352
adamc@1094	353 void uw_app_init(uw_app *app) {
adamc@1094	354 app->client_init();
adamc@668	355 }
adamc@668	356
adam@1332	357 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114	358
adamc@668	359
adamc@667	360 // Single-request state
adamc@667	361
adamc@323	362 typedef struct regions {
adamc@323	363 struct regions *next;
adamc@323	364 } regions;
adamc@323	365
adamc@425	366 typedef struct {
adamc@425	367 void (func)(void);
adamc@425	368 void *arg;
adamc@425	369 } cleanup;
adamc@425	370
adamc@671	371 typedef struct {
adamc@682	372 unsigned client;
adam@1369	373 uw_buffer msgs;
adamc@682	374 } delta;
adamc@671	375
adamc@737	376 typedef enum {
adamc@759	377 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	378 } input_kind;
adamc@737	379
adamc@756	380 typedef struct input {
adamc@737	381 input_kind kind;
adamc@737	382 union {
adamc@737	383 char *normal;
adamc@739	384 uw_Basis_file file;
adamc@756	385 struct {
adamc@759	386 struct input fields, parent;
adamc@756	387 } subform;
adamc@759	388 struct {
adamc@759	389 struct input entries, parent;
adamc@759	390 } subforms;
adamc@759	391 struct {
adamc@759	392 struct input fields, next, *parent;
adamc@759	393 } entry;
adamc@737	394 } data;
adamc@737	395 } input;
adamc@737	396
adamc@771	397 typedef struct {
adamc@771	398 void *data;
adam@1327	399 uw_callback commit, rollback;
adam@1327	400 uw_callback_with_retry free;
adamc@771	401 } transactional;
adamc@771	402
adamc@1061	403 typedef struct {
adamc@1061	404 char *name;
adamc@1061	405 void *data;
adamc@1061	406 void (free)(void);
adamc@1061	407 } global;
adamc@1061	408
adamc@311	409 struct uw_context {
adamc@1094	410 uw_app *app;
adam@1446	411 int id;
adamc@1094	412
adamc@854	413 char (get_header)(void , const char );
adamc@854	414 void *get_header_data;
adamc@457	415
adam@1369	416 uw_buffer outHeaders, page, heap, script;
adam@1451	417 int allowed_to_return_indirectly, returning_indirectly;
adamc@759	418 input inputs, subinputs, *cur_container;
adamc@1094	419 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	420
adam@1446	421 unsigned long long source_count;
adamc@562	422
adamc@272	423 void *db;
adamc@272	424
adamc@167	425 jmp_buf jmp_buf;
adamc@167	426
adamc@323	427 regions *regions;
adamc@323	428
adamc@425	429 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	430
adamc@1094	431 const char *script_header;
adamc@643	432
adamc@736	433 int needs_push, needs_sig;
adamc@693	434
adamc@682	435 size_t n_deltas, used_deltas;
adamc@682	436 delta *deltas;
adamc@671	437
adamc@682	438 client *client;
adamc@682	439
adamc@771	440 transactional *transactionals;
adamc@771	441 size_t n_transactionals, used_transactionals;
adamc@771	442
adamc@1061	443 global *globals;
adamc@1061	444 size_t n_globals;
adamc@1061	445
adamc@1066	446 char *current_url;
adamc@1066	447
adamc@1114	448 int deadline;
adamc@1114	449
adamc@1121	450 void *client_data;
adamc@1121	451
adam@1334	452 void *logger_data;
adam@1334	453 uw_logger log_debug;
adam@1334	454
adam@1386	455 int isPost, hasPostBody;
adam@1347	456 uw_Basis_postBody postBody;
adam@1370	457 uw_Basis_string queryString;
adam@1347	458
adamc@167	459 char error_message[ERROR_BUF_LEN];
adamc@117	460 };
adamc@117	461
adamc@1113	462 size_t uw_headers_max = SIZE_MAX;
adamc@1113	463 size_t uw_page_max = SIZE_MAX;
adamc@1113	464 size_t uw_heap_max = SIZE_MAX;
adamc@1113	465 size_t uw_script_max = SIZE_MAX;
adamc@1113	466
adam@1446	467 uw_context uw_init(int id, void *logger_data, uw_logger log_debug) {
adamc@311	468 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	469
adamc@1094	470 ctx->app = NULL;
adam@1446	471 ctx->id = id;
adamc@1094	472
adamc@854	473 ctx->get_header = NULL;
adamc@854	474 ctx->get_header_data = NULL;
adamc@457	475
adam@1413	476 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413	477 ctx->outHeaders.start[0] = 0;
adam@1413	478 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413	479 ctx->page.start[0] = 0;
adam@1451	480 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	481 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369	482 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667	483 ctx->script.start[0] = 0;
adamc@136	484
adamc@1094	485 ctx->inputs = malloc(0);
adamc@759	486 ctx->cur_container = NULL;
adamc@756	487 ctx->subinputs = malloc(0);
adamc@1094	488 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	489
adamc@272	490 ctx->db = NULL;
adamc@272	491
adamc@323	492 ctx->regions = NULL;
adamc@323	493
adamc@425	494 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	495
adamc@643	496 ctx->script_header = "";
adamc@693	497 ctx->needs_push = 0;
adamc@736	498 ctx->needs_sig = 0;
adamc@1104	499
adamc@565	500 ctx->source_count = 0;
adamc@562	501
adamc@682	502 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	503 ctx->deltas = malloc(0);
adamc@671	504
adamc@700	505 ctx->client = NULL;
adamc@700	506
adamc@700	507 ctx->error_message[0] = 0;
adamc@700	508
adamc@771	509 ctx->transactionals = malloc(0);
adamc@771	510 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	511
adamc@1061	512 ctx->globals = malloc(0);
adamc@1061	513 ctx->n_globals = 0;
adamc@1061	514
adamc@1066	515 ctx->current_url = "";
adamc@1066	516
adamc@1114	517 ctx->deadline = INT_MAX;
adamc@1114	518
adamc@1121	519 ctx->client_data = uw_init_client_data();
adamc@1121	520
adam@1334	521 ctx->logger_data = logger_data;
adam@1334	522 ctx->log_debug = log_debug;
adam@1334	523
adam@1386	524 ctx->isPost = ctx->hasPostBody = 0;
adam@1347	525
adam@1370	526 ctx->queryString = NULL;
adam@1370	527
adamc@117	528 return ctx;
adamc@106	529 }
adamc@106	530
adamc@1113	531 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	532
adamc@1121	533 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	534 return ctx->app;
adamc@1121	535 }
adamc@1121	536
adamc@1113	537 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	538 ctx->app = app;
adamc@1094	539
adamc@1105	540 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	541 if (app->inputs_len > uw_inputs_max)
adamc@1113	542 return 1;
adamc@1113	543
adamc@1094	544 ctx->sz_inputs = app->inputs_len;
adamc@1094	545 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	546 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	547 }
adamc@1134	548
adamc@1134	549 return 0;
adamc@1094	550 }
adamc@1094	551
adamc@1121	552 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	553 uw_copy_client_data(ctx->client_data, data);
adamc@1121	554 }
adamc@1121	555
adamc@311	556 void uw_set_db(uw_context ctx, void *db) {
adamc@272	557 ctx->db = db;
adamc@272	558 }
adamc@272	559
adamc@311	560 void *uw_get_db(uw_context ctx) {
adamc@272	561 return ctx->db;
adamc@272	562 }
adamc@272	563
adamc@311	564 void uw_free(uw_context ctx) {
adamc@671	565 size_t i;
adamc@671	566
adam@1369	567 uw_buffer_free(&ctx->outHeaders);
adam@1369	568 uw_buffer_free(&ctx->script);
adam@1369	569 uw_buffer_free(&ctx->page);
adam@1369	570 uw_buffer_free(&ctx->heap);
adamc@144	571 free(ctx->inputs);
adamc@756	572 free(ctx->subinputs);
adamc@425	573 free(ctx->cleanup);
adamc@771	574 free(ctx->transactionals);
adamc@1121	575 uw_free_client_data(ctx->client_data);
adamc@671	576
adamc@682	577 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	578 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	579 free(ctx->deltas);
adamc@671	580
adamc@1061	581 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	582 if (ctx->globals[i].free)
adamc@1089	583 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	584 free(ctx->globals);
adamc@1061	585
adamc@136	586 free(ctx);
adamc@136	587 }
adamc@136	588
adamc@562	589 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	590 uw_buffer_reset(&ctx->outHeaders);
adam@1369	591 uw_buffer_reset(&ctx->script);
adamc@667	592 ctx->script.start[0] = 0;
adam@1369	593 uw_buffer_reset(&ctx->page);
adam@1451	594 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	595 uw_buffer_reset(&ctx->heap);
adamc@323	596 ctx->regions = NULL;
adamc@425	597 ctx->cleanup_front = ctx->cleanup;
adamc@682	598 ctx->used_deltas = 0;
adamc@682	599 ctx->client = NULL;
adamc@759	600 ctx->cur_container = NULL;
adamc@771	601 ctx->used_transactionals = 0;
adamc@1117	602 ctx->script_header = "";
adam@1417	603 ctx->hasPostBody = 0;
adam@1370	604 ctx->queryString = NULL;
adamc@167	605 }
adamc@167	606
adamc@562	607 void uw_reset_keep_request(uw_context ctx) {
adamc@562	608 uw_reset_keep_error_message(ctx);
adamc@562	609 ctx->error_message[0] = 0;
adamc@167	610 }
adamc@167	611
adamc@311	612 void uw_reset(uw_context ctx) {
adamc@311	613 uw_reset_keep_request(ctx);
adamc@1105	614 if (ctx->app)
adamc@1105	615 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	616 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adamc@756	617 ctx->used_subinputs = 0;
adam@1417	618 ctx->isPost = 0;
adamc@144	619 }
adamc@144	620
adamc@311	621 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	622 int r = setjmp(ctx->jmp_buf);
adamc@272	623
adamc@1105	624 if (r == 0 && ctx->app)
adamc@1094	625 ctx->app->db_init(ctx);
adamc@272	626
adamc@272	627 return r;
adamc@272	628 }
adamc@272	629
adamc@1118	630 void uw_close(uw_context ctx) {
adamc@1118	631 ctx->app->db_close(ctx);
adamc@1118	632 }
adamc@1118	633
adam@1446	634 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	635 return ctx->get_header(ctx->get_header_data, h);
adam@1446	636 }
adam@1446	637
adamc@854	638 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	639 ctx->get_header = get_header;
adamc@854	640 ctx->get_header_data = get_header_data;
adamc@742	641 }
adamc@742	642
adamc@801	643 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	644 va_list ap;
adamc@801	645 va_start(ap, fmt);
adamc@801	646
adamc@801	647 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	648 }
adamc@801	649
adamc@1131	650 int uw_has_error(uw_context ctx) {
adamc@1131	651 return ctx->error_message[0] != 0;
adamc@1131	652 }
adamc@1131	653
adamc@311	654 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	655 cleanup *cl;
adamc@425	656
adamc@167	657 va_list ap;
adamc@167	658 va_start(ap, fmt);
adamc@167	659
adamc@167	660 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	661
adamc@425	662 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	663 cl->func(cl->arg);
adamc@425	664
adamc@425	665 ctx->cleanup_front = ctx->cleanup;
adamc@425	666
adamc@190	667 longjmp(ctx->jmp_buf, fk);
adamc@167	668 }
adamc@167	669
adamc@1113	670 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	671
adamc@425	672 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	673 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	674 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	675 if (len == 0)
adamc@425	676 newLen = 1;
adamc@425	677 else
adamc@428	678 newLen = len * 2;
adamc@1113	679
adamc@1134	680 if (newLen > uw_cleanup_max) {
adamc@1113	681 if (len+1 <= uw_cleanup_max)
adamc@1113	682 newLen = uw_cleanup_max;
adamc@1113	683 else
adamc@1113	684 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	685 }
adamc@1113	686
adamc@470	687 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	688 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	689 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	690 }
adamc@425	691
adamc@425	692 ctx->cleanup_front->func = func;
adamc@425	693 ctx->cleanup_front->arg = arg;
adamc@425	694 ++ctx->cleanup_front;
adamc@425	695 }
adamc@425	696
adam@1444	697 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	698
adamc@682	699 void uw_login(uw_context ctx) {
adamc@693	700 if (ctx->needs_push) {
adamc@682	701 char id_s, pass_s;
adamc@682	702
adamc@682	703 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682	704 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682	705 unsigned id = atoi(id_s);
adamc@682	706 int pass = atoi(pass_s);
adamc@682	707 client *c = find_client(id);
adamc@682	708
adamc@682	709 if (c == NULL)
adam@1444	710 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", uw_Basis_htmlifyString(ctx, id_s), uw_Basis_htmlifyString(ctx, pass_s));
adamc@682	711 else {
adamc@685	712 use_client(c);
adamc@682	713 ctx->client = c;
adamc@682	714
adamc@682	715 if (c->mode != USED)
adamc@682	716 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682	717 if (c->pass != pass)
adamc@682	718 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682	719 }
adamc@682	720 } else {
adamc@682	721 client *c = new_client();
adamc@1113	722
adamc@1113	723 if (c == NULL)
adamc@1113	724 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adamc@1113	725
adamc@685	726 use_client(c);
adamc@1121	727 uw_copy_client_data(c->data, ctx->client_data);
adamc@682	728 ctx->client = c;
adamc@864	729 }
adamc@682	730 }
adamc@682	731 }
adamc@682	732
adamc@671	733 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	734 int r = setjmp(ctx->jmp_buf);
adamc@671	735
adamc@671	736 if (r == 0) {
adamc@1094	737 if (ctx->app->db_begin(ctx))
adamc@671	738 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adamc@682	739
adamc@1094	740 ctx->app->handle(ctx, path);
adamc@671	741 }
adamc@671	742
adamc@671	743 return r;
adamc@671	744 }
adamc@671	745
adamc@772	746 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	747 if (ctx->client == NULL)
adamc@682	748 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	749
adamc@682	750 return ctx->client->id;
adamc@682	751 }
adamc@682	752
adamc@425	753 void uw_pop_cleanup(uw_context ctx) {
adamc@425	754 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	755 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	756
adamc@425	757 --ctx->cleanup_front;
adamc@425	758 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	759 }
adamc@425	760
adamc@311	761 char *uw_error_message(uw_context ctx) {
adamc@167	762 return ctx->error_message;
adamc@167	763 }
adamc@167	764
adamc@1115	765 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	766 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	767 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	768 }
adamc@1115	769
adamc@759	770 static input *INP(uw_context ctx) {
adamc@759	771 if (ctx->cur_container == NULL)
adamc@759	772 return ctx->inputs;
adamc@759	773 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	774 return ctx->cur_container->data.subform.fields;
adamc@759	775 else if (ctx->cur_container->kind == ENTRY)
adamc@759	776 return ctx->cur_container->data.entry.fields;
adamc@759	777 else
adamc@760	778 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	779 }
adamc@759	780
adamc@760	781 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	782 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	783 *ptr += new_start - old_start;
adamc@760	784 }
adamc@760	785
adamc@760	786 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	787 switch (x->kind) {
adamc@759	788 case SUBFORM:
adamc@760	789 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	790 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	791 break;
adamc@759	792 case SUBFORMS:
adamc@760	793 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	794 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	795 break;
adamc@759	796 case ENTRY:
adamc@760	797 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	798 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	799 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	800 break;
adamc@1134	801 default:
adamc@1134	802 break;
adamc@759	803 }
adamc@759	804 }
adamc@759	805
adamc@1113	806 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	807
adamc@759	808 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	809 size_t i;
adamc@759	810 input *r;
adamc@759	811
adamc@759	812 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	813 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	814 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	815
adamc@759	816 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	817
adamc@760	818 if (ctx->subinputs != new_subinputs) {
adamc@760	819 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	820 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	821 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	822 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	823
adamc@760	824 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	825
adamc@760	826 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	827 ctx->subinputs = new_subinputs;
adamc@760	828 }
adamc@759	829 }
adamc@759	830
adamc@759	831 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	832
adamc@759	833 for (i = 0; i < len; ++i)
adamc@759	834 ctx->subinputs[ctx->used_subinputs++].kind = UNUSED;
adamc@759	835
adamc@759	836 return r;
adamc@759	837 }
adamc@756	838
adamc@801	839 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	840 //printf("Input name %s\n", name);
adamc@1038	841
adamc@756	842 if (!strcasecmp(name, ".b")) {
adamc@1094	843 int n = ctx->app->input_num(value);
adamc@756	844 input *inps;
adamc@756	845
adamc@801	846 if (n < 0) {
adam@1444	847 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	848 return -1;
adamc@801	849 }
adamc@801	850
adamc@1094	851 if (n >= ctx->app->inputs_len) {
adam@1444	852 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	853 return -1;
adamc@801	854 }
adamc@756	855
adamc@1094	856 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	857
adamc@759	858 INP(ctx)[n].kind = SUBFORM;
adamc@759	859 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	860 INP(ctx)[n].data.subform.fields = inps;
adamc@759	861 ctx->cur_container = &INP(ctx)[n];
adamc@756	862 } else if (!strcasecmp(name, ".e")) {
adamc@756	863 input *tmp;
adamc@756	864
adamc@801	865 if (ctx->cur_container == NULL) {
adamc@801	866 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	867 return -1;
adamc@801	868 }
adamc@756	869
adamc@759	870 tmp = ctx->cur_container;
adamc@759	871 switch (tmp->kind) {
adamc@759	872 case SUBFORM:
adamc@759	873 ctx->cur_container = tmp->data.subform.parent;
adamc@759	874 tmp->data.subform.parent = NULL;
adamc@759	875 break;
adamc@759	876 case SUBFORMS:
adamc@759	877 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	878 tmp->data.subforms.parent = NULL;
adamc@759	879 break;
adamc@759	880 case ENTRY:
adamc@759	881 ctx->cur_container = tmp->data.entry.parent;
adamc@759	882 break;
adamc@759	883 default:
adamc@801	884 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	885 return -1;
adamc@759	886 }
adamc@759	887 } else if (!strcasecmp(name, ".s")) {
adamc@1094	888 int n = ctx->app->input_num(value);
adamc@759	889
adamc@801	890 if (n < 0) {
adam@1444	891 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	892 return -1;
adamc@801	893 }
adamc@801	894
adamc@1094	895 if (n >= ctx->app->inputs_len) {
adam@1444	896 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	897 return -1;
adamc@801	898 }
adamc@759	899
adamc@759	900 INP(ctx)[n].kind = SUBFORMS;
adamc@759	901 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	902 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	903 ctx->cur_container = &INP(ctx)[n];
adamc@759	904 } else if (!strcasecmp(name, ".i")) {
adamc@759	905 input *inps;
adamc@759	906
adamc@801	907 if (!ctx->cur_container) {
adamc@801	908 uw_set_error(ctx, "New entry without container");
adamc@801	909 return -1;
adamc@801	910 }
adamc@801	911
adamc@801	912 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	913 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	914 return -1;
adamc@801	915 }
adamc@759	916
adamc@1094	917 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	918
adamc@759	919 inps->kind = ENTRY;
adamc@759	920 inps->data.entry.parent = ctx->cur_container;
adamc@759	921 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	922 ctx->cur_container->data.subforms.entries = inps;
adamc@759	923
adamc@759	924 inps->data.entry.fields = inps+1;
adamc@759	925 ctx->cur_container = inps;
adamc@756	926 } else {
adamc@1094	927 int n = ctx->app->input_num(name);
adamc@756	928
adam@1384	929 if (n < 0)
adam@1384	930 return 0;
adamc@801	931
adamc@1094	932 if (n >= ctx->app->inputs_len) {
adam@1444	933 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	934 return -1;
adamc@801	935 }
adamc@756	936
adamc@756	937 INP(ctx)[n].kind = NORMAL;
adamc@756	938 INP(ctx)[n].data.normal = value;
adamc@756	939 }
adamc@801	940
adamc@801	941 return 0;
adamc@144	942 }
adamc@144	943
adamc@311	944 char *uw_get_input(uw_context ctx, int n) {
adamc@169	945 if (n < 0)
adamc@311	946 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	947 if (n >= ctx->app->inputs_len)
adamc@311	948 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	949
adamc@756	950 switch (INP(ctx)[n].kind) {
adamc@737	951 case UNSET:
adamc@737	952 return NULL;
adamc@739	953 case FIL:
adamc@739	954 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	955 case SUBFORM:
adamc@756	956 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	957 case SUBFORMS:
adamc@759	958 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	959 case ENTRY:
adamc@759	960 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	961 case NORMAL:
adamc@756	962 return INP(ctx)[n].data.normal;
adamc@737	963 default:
adamc@737	964 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	965 }
adamc@138	966 }
adamc@138	967
adamc@311	968 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	969 if (n < 0)
adamc@311	970 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	971 if (n >= ctx->app->inputs_len)
adamc@311	972 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	973
adamc@756	974 switch (INP(ctx)[n].kind) {
adamc@737	975 case UNSET:
adamc@737	976 return "";
adamc@739	977 case FIL:
adamc@739	978 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	979 case SUBFORM:
adamc@756	980 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	981 case SUBFORMS:
adamc@759	982 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	983 case ENTRY:
adamc@759	984 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	985 case NORMAL:
adamc@756	986 return INP(ctx)[n].data.normal;
adamc@737	987 default:
adamc@737	988 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	989 }
adamc@737	990 }
adamc@737	991
adamc@801	992 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	993 int n = ctx->app->input_num(name);
adamc@737	994
adamc@801	995 if (n < 0) {
adam@1444	996 uw_set_error(ctx, "Bad file input name %s", uw_Basis_htmlifyString(ctx, name));
adamc@801	997 return -1;
adamc@801	998 }
adamc@801	999
adamc@1094	1000 if (n >= ctx->app->inputs_len) {
adam@1444	1001 uw_set_error(ctx, "For file input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	1002 return -1;
adamc@801	1003 }
adamc@737	1004
adamc@739	1005 ctx->inputs[n].kind = FIL;
adamc@739	1006 ctx->inputs[n].data.file = f;
adamc@801	1007
adamc@801	1008 return 0;
adamc@737	1009 }
adamc@737	1010
adamc@739	1011 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1012
adamc@739	1013 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1014 if (n < 0)
adamc@737	1015 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1016 if (n >= ctx->app->inputs_len)
adamc@737	1017 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1018
adamc@756	1019 switch (INP(ctx)[n].kind) {
adamc@737	1020 case UNSET:
adamc@737	1021 {
adamc@739	1022 char *data = uw_malloc(ctx, 0);
adamc@740	1023 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1024 return f;
adamc@737	1025 }
adamc@739	1026 case FIL:
adamc@756	1027 return INP(ctx)[n].data.file;
adamc@737	1028 case NORMAL:
adamc@737	1029 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1030 case SUBFORM:
adamc@756	1031 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1032 case SUBFORMS:
adamc@759	1033 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1034 case ENTRY:
adamc@759	1035 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1036 default:
adamc@737	1037 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1038 }
adamc@190	1039 }
adamc@190	1040
adamc@756	1041 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1042 if (n < 0)
adamc@756	1043 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1044 if (n >= ctx->app->inputs_len)
adamc@756	1045 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1046
adamc@756	1047 switch (INP(ctx)[n].kind) {
adamc@756	1048 case UNSET:
adamc@756	1049 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1050 case FIL:
adamc@756	1051 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1052 case NORMAL:
adamc@756	1053 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1054 case SUBFORMS:
adamc@759	1055 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1056 case ENTRY:
adamc@759	1057 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1058 case SUBFORM:
adamc@759	1059 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1060 ctx->cur_container = &INP(ctx)[n];
adamc@756	1061 return;
adamc@756	1062 default:
adamc@756	1063 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1064 }
adamc@756	1065 }
adamc@756	1066
adamc@756	1067 void uw_leave_subform(uw_context ctx) {
adamc@756	1068 input *tmp;
adamc@756	1069
adamc@759	1070 if (ctx->cur_container == NULL)
adamc@756	1071 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1072
adamc@759	1073 tmp = ctx->cur_container;
adamc@759	1074 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1075 tmp->data.subform.parent = NULL;
adamc@759	1076 }
adamc@759	1077
adamc@759	1078 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1079 input *inps;
adamc@759	1080
adamc@759	1081 if (n < 0)
adamc@759	1082 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1083 if (n >= ctx->app->inputs_len)
adamc@759	1084 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1085
adamc@759	1086 switch (INP(ctx)[n].kind) {
adamc@759	1087 case UNSET:
adamc@759	1088 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1089 case FIL:
adamc@759	1090 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1091 case NORMAL:
adamc@759	1092 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1093 case SUBFORM:
adamc@759	1094 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1095 case ENTRY:
adamc@759	1096 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1097 case SUBFORMS:
adamc@759	1098 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1099 if (inps) {
adamc@759	1100 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1101 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1102 return 1;
adamc@759	1103 } else
adamc@759	1104 return 0;
adamc@759	1105 default:
adamc@759	1106 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1107 }
adamc@759	1108 }
adamc@759	1109
adamc@759	1110 int uw_next_entry(uw_context ctx) {
adamc@759	1111 if (ctx->cur_container == NULL)
adamc@759	1112 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1113
adamc@759	1114 switch (ctx->cur_container->kind) {
adamc@759	1115 case UNSET:
adamc@759	1116 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1117 case FIL:
adamc@759	1118 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1119 case NORMAL:
adamc@759	1120 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1121 case SUBFORM:
adamc@759	1122 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1123 case SUBFORMS:
adamc@759	1124 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1125 case ENTRY:
adamc@759	1126 if (ctx->cur_container->data.entry.next) {
adamc@759	1127 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1128 return 1;
adamc@759	1129 } else {
adamc@759	1130 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1131 return 0;
adamc@759	1132 }
adamc@759	1133 default:
adamc@759	1134 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1135 }
adamc@756	1136 }
adamc@756	1137
adamc@643	1138 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1139 ctx->script_header = s;
adamc@643	1140 }
adamc@643	1141
adamc@1094	1142 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1143 return ctx->app->url_prefix;
adamc@667	1144 }
adamc@667	1145
adamc@693	1146 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1147 ctx->needs_push = n;
adamc@693	1148 }
adamc@693	1149
adamc@736	1150 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1151 ctx->needs_sig = n;
adamc@736	1152 }
adamc@736	1153
adamc@667	1154
adam@1369	1155 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1156 if (b->back - b->front < extra) {
adamc@666	1157 size_t desired = b->front - b->start + extra, next;
adamc@136	1158 char *new_heap;
adamc@136	1159
adamc@666	1160 next = b->back - b->start;
adamc@317	1161 if (next == 0)
adamc@317	1162 next = 1;
adamc@317	1163 for (; next < desired; next *= 2);
adamc@136	1164
adamc@1134	1165 if (next > b->max) {
adamc@1113	1166 if (desired <= b->max)
adamc@1113	1167 next = desired;
adamc@1113	1168 else
adamc@1113	1169 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1170 }
adamc@1113	1171
adamc@666	1172 new_heap = realloc(b->start, next);
adamc@666	1173 b->front = new_heap + (b->front - b->start);
adamc@666	1174 b->back = new_heap + next;
adamc@136	1175
adamc@667	1176 if (new_heap != b->start) {
adamc@666	1177 b->start = new_heap;
adam@1389	1178 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1179 }
adamc@136	1180
adamc@666	1181 b->start = new_heap;
adamc@136	1182 }
adamc@136	1183 }
adamc@136	1184
adamc@832	1185 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1186 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1187 }
adamc@666	1188
adamc@832	1189 char *uw_heap_front(uw_context ctx) {
adamc@832	1190 return ctx->heap.front;
adamc@832	1191 }
adamc@832	1192
adamc@832	1193 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1194 ctx->heap.front = fr;
adamc@832	1195 }
adamc@832	1196
adamc@311	1197 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136	1198 void *result;
adamc@136	1199
adamc@311	1200 uw_check_heap(ctx, len);
adamc@136	1201
adamc@666	1202 result = ctx->heap.front;
adamc@666	1203 ctx->heap.front += len;
adamc@136	1204 return result;
adamc@117	1205 }
adamc@117	1206
adamc@323	1207 void uw_begin_region(uw_context ctx) {
adamc@666	1208 regions r = (regions ) ctx->heap.front;
adamc@323	1209
adamc@323	1210 uw_check_heap(ctx, sizeof(regions));
adamc@323	1211
adamc@666	1212 ctx->heap.front += sizeof(regions);
adamc@323	1213
adamc@323	1214 r->next = ctx->regions;
adamc@323	1215 ctx->regions = r;
adamc@323	1216 }
adamc@323	1217
adamc@323	1218 void uw_end_region(uw_context ctx) {
adamc@323	1219 regions *r = ctx->regions;
adamc@323	1220
adamc@323	1221 if (r == NULL)
adamc@323	1222 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1223
adamc@666	1224 ctx->heap.front = (char *) r;
adamc@323	1225 ctx->regions = r->next;
adamc@323	1226 }
adamc@323	1227
adamc@324	1228 void uw_memstats(uw_context ctx) {
adam@1369	1229 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1230 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1231 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1232 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1233 }
adamc@324	1234
adamc@311	1235 int uw_send(uw_context ctx, int sock) {
adamc@666	1236 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462	1237
adamc@462	1238 if (n < 0)
adamc@462	1239 return n;
adamc@462	1240
adamc@462	1241 n = uw_really_send(sock, "\r\n", 2);
adamc@462	1242
adamc@462	1243 if (n < 0)
adamc@462	1244 return n;
adamc@462	1245
adamc@666	1246 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462	1247 }
adamc@462	1248
adamc@856	1249 int uw_print(uw_context ctx, int fd) {
adamc@856	1250 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1251
adamc@856	1252 if (n < 0)
adamc@856	1253 return n;
adamc@856	1254
adamc@856	1255 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1256
adamc@856	1257 if (n < 0)
adamc@856	1258 return n;
adamc@856	1259
adamc@856	1260 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1261 }
adamc@856	1262
adamc@860	1263 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1264 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1265
adamc@860	1266 if (n < 0)
adamc@860	1267 return n;
adamc@860	1268
adamc@860	1269 n = output(data, "\r\n", 2);
adamc@860	1270
adamc@860	1271 if (n < 0)
adamc@860	1272 return n;
adamc@860	1273
adamc@860	1274 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1275 }
adamc@860	1276
adamc@462	1277 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1278 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1279 }
adamc@462	1280
adamc@462	1281 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1282 int len = strlen(s);
adamc@462	1283
adamc@462	1284 uw_check_headers(ctx, len + 1);
adamc@666	1285 strcpy(ctx->outHeaders.front, s);
adamc@666	1286 ctx->outHeaders.front += len;
adamc@562	1287 }
adamc@562	1288
adamc@1110	1289 void uw_clear_headers(uw_context ctx) {
adam@1369	1290 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1291 }
adamc@1110	1292
adamc@562	1293 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1294 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1295 }
adamc@562	1296
adamc@562	1297 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1298 int len = strlen(s);
adamc@562	1299
adamc@562	1300 uw_check_script(ctx, len + 1);
adamc@666	1301 strcpy(ctx->script.front, s);
adamc@666	1302 ctx->script.front += len;
adamc@562	1303 }
adamc@562	1304
adamc@645	1305 const char *uw_Basis_get_script(uw_context ctx, uw_unit u) {
adamc@916	1306 return "<sc>";
adamc@565	1307 }
adamc@565	1308
adam@1446	1309 const char *uw_get_real_script(uw_context ctx) {
adam@1446	1310 return ctx->script.start;
adam@1446	1311 }
adam@1446	1312
adamc@695	1313 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1314 if (s[0] == 0)
adamc@695	1315 return "";
adamc@695	1316 else {
adamc@695	1317 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1318 sprintf(r, " onload='%s'", s);
adamc@695	1319 return r;
adamc@695	1320 }
adamc@695	1321 }
adamc@695	1322
adamc@1042	1323 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1324 if (ctx->script_header[0] == 0)
adamc@1042	1325 return "";
adamc@1042	1326 else {
adamc@1042	1327 char *r = uw_malloc(ctx, 22 + strlen(s));
adamc@1042	1328 sprintf(r, " onunload='unload();%s'", s);
adamc@1042	1329 return r;
adamc@1042	1330 }
adamc@1042	1331 }
adamc@1042	1332
adamc@694	1333 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1334 if (ctx->client == NULL) {
adamc@736	1335 if (ctx->needs_sig) {
adamc@1094	1336 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1337 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1338 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1339 return r;
adamc@736	1340 }
adamc@736	1341 else
adamc@736	1342 return "";
adamc@736	1343 } else {
adamc@1094	1344 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1345 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1346 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adamc@736	1347 sprintf(r, "client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adamc@682	1348 ctx->client->id,
adamc@682	1349 ctx->client->pass,
adamc@1094	1350 ctx->app->url_prefix,
adamc@1094	1351 ctx->app->timeout,
adamc@736	1352 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1353 sig,
adamc@736	1354 ctx->needs_sig ? "\";" : "");
adamc@679	1355 return r;
adamc@668	1356 }
adamc@667	1357 }
adamc@667	1358
adamc@574	1359 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1360 char r, s2;
adamc@574	1361
adam@1446	1362 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1363
adamc@666	1364 r = s2 = ctx->heap.front;
adamc@574	1365 *s2++ = '"';
adamc@574	1366
adamc@574	1367 for (; *s; s++) {
adam@1286	1368 unsigned char c = *s;
adamc@574	1369
adamc@574	1370 switch (c) {
adamc@574	1371 case '"':
adamc@574	1372 strcpy(s2, "\\\"");
adamc@574	1373 s2 += 2;
adamc@574	1374 break;
adamc@1027	1375 case '\'':
adamc@1027	1376 strcpy(s2, "\\047");
adamc@1027	1377 s2 += 4;
adamc@1027	1378 break;
adamc@574	1379 case '\\':
adamc@574	1380 strcpy(s2, "\\\\");
adamc@574	1381 s2 += 2;
adamc@574	1382 break;
adamc@574	1383 default:
adam@1286	1384 if (isprint((int)c) \|\| c >= 128)
adamc@574	1385 *s2++ = c;
adamc@574	1386 else {
adam@1429	1387 sprintf(s2, "\\%03o", c);
adamc@574	1388 s2 += 4;
adamc@574	1389 }
adamc@574	1390 }
adamc@574	1391 }
adamc@574	1392
adamc@574	1393 strcpy(s2, "\"");
adamc@910	1394 ctx->heap.front = s2 + 2;
adamc@574	1395 return r;
adamc@574	1396 }
adamc@574	1397
adam@1286	1398 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1399 unsigned char c = c1;
adamc@1025	1400 char r, s2;
adamc@1025	1401
adam@1446	1402 uw_check_heap(ctx, 7);
adamc@1025	1403
adamc@1025	1404 r = s2 = ctx->heap.front;
adamc@1025	1405 *s2++ = '"';
adamc@1025	1406
adamc@1025	1407 switch (c) {
adamc@1025	1408 case '"':
adamc@1025	1409 strcpy(s2, "\\\"");
adamc@1025	1410 s2 += 2;
adamc@1025	1411 break;
adamc@1027	1412 case '\'':
adamc@1027	1413 strcpy(s2, "\\047");
adamc@1027	1414 s2 += 4;
adamc@1027	1415 break;
adamc@1025	1416 case '\\':
adamc@1025	1417 strcpy(s2, "\\\\");
adamc@1025	1418 s2 += 2;
adamc@1025	1419 break;
adamc@1025	1420 default:
adam@1286	1421 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1422 *s2++ = c;
adamc@1025	1423 else {
adam@1429	1424 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1425 s2 += 4;
adamc@1025	1426 }
adamc@1025	1427 }
adamc@1025	1428
adamc@1025	1429 strcpy(s2, "\"");
adamc@1025	1430 ctx->heap.front = s2 + 2;
adamc@1025	1431 return r;
adamc@1025	1432 }
adamc@1025	1433
adamc@574	1434 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1435 char r, s2;
adamc@574	1436
adam@1446	1437 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1438
adamc@666	1439 r = s2 = ctx->script.front;
adamc@574	1440 *s2++ = '"';
adamc@574	1441
adamc@574	1442 for (; *s; s++) {
adam@1286	1443 unsigned char c = *s;
adamc@574	1444
adamc@574	1445 switch (c) {
adamc@577	1446 case '\'':
adamc@1027	1447 strcpy(s2, "\\");
adamc@574	1448 s2 += 2;
adamc@574	1449 break;
adamc@574	1450 case '\\':
adamc@574	1451 strcpy(s2, "\\\\");
adamc@574	1452 s2 += 2;
adamc@574	1453 break;
adamc@574	1454 default:
adam@1286	1455 if (isprint((int)c) \|\| c >= 128)
adamc@574	1456 *s2++ = c;
adamc@574	1457 else {
adam@1429	1458 sprintf(s2, "\\%03o", c);
adamc@574	1459 s2 += 4;
adamc@574	1460 }
adamc@574	1461 }
adamc@574	1462 }
adamc@574	1463
adamc@574	1464 strcpy(s2, "\"");
adamc@666	1465 ctx->script.front = s2 + 1;
adamc@574	1466 return r;
adamc@574	1467 }
adamc@574	1468
adamc@682	1469 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1470 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1471 return "null";
adamc@682	1472 else {
adamc@682	1473 int len;
adamc@682	1474 char *r;
adamc@682	1475
adamc@682	1476 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1477 r = ctx->heap.front;
adamc@682	1478 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1479 ctx->heap.front += len+1;
adamc@682	1480 return r;
adamc@682	1481 }
adamc@682	1482 }
adamc@682	1483
adam@1446	1484 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1485 int len;
adamc@577	1486 size_t s_len = strlen(s);
adamc@562	1487
adam@1446	1488 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1489 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1490 ctx->script.front += len;
adamc@666	1491 strcpy(ctx->script.front, s);
adamc@666	1492 ctx->script.front += s_len;
adamc@970	1493 strcpy(ctx->script.front, "));");
adamc@972	1494 ctx->script.front += 3;
adamc@562	1495
adam@1446	1496 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1497 return r;
adam@1446	1498 }
adam@1446	1499
adam@1446	1500 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1501 int len;
adamc@577	1502 size_t s_len = strlen(s);
adamc@577	1503
adam@1446	1504 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1505 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1506 ctx->script.front += len;
adamc@666	1507 strcpy(ctx->script.front, s);
adamc@666	1508 ctx->script.front += s_len;
adamc@970	1509 strcpy(ctx->script.front, "));");
adamc@972	1510 ctx->script.front += 3;
adamc@577	1511
adamc@577	1512 return uw_unit_v;
adamc@577	1513 }
adamc@577	1514
adamc@311	1515 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1516 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1517 }
adamc@117	1518
adamc@311	1519 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1520 *(ctx->page.front)++ = c;
adam@1413	1521 *ctx->page.front = 0;
adamc@117	1522 }
adamc@117	1523
adamc@311	1524 void uw_writec(uw_context ctx, char c) {
adam@1413	1525 uw_check(ctx, 2);
adamc@311	1526 uw_writec_unsafe(ctx, c);
adamc@117	1527 }
adamc@117	1528
adamc@311	1529 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1530 int len = strlen(s);
adamc@666	1531 memcpy(ctx->page.front, s, len);
adamc@666	1532 ctx->page.front += len;
adamc@117	1533 }
adamc@117	1534
adamc@311	1535 void uw_write(uw_context ctx, const char* s) {
adamc@311	1536 uw_check(ctx, strlen(s) + 1);
adamc@311	1537 uw_write_unsafe(ctx, s);
adamc@666	1538 *ctx->page.front = 0;
adamc@102	1539 }
adamc@106	1540
adamc@311	1541 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1542 char *result;
adamc@136	1543 int len;
adamc@311	1544 uw_check_heap(ctx, INTS_MAX);
adamc@666	1545 result = ctx->heap.front;
adamc@276	1546 sprintf(result, "%lld%n", n, &len);
adamc@666	1547 ctx->heap.front += len+1;
adamc@136	1548 return result;
adamc@106	1549 }
adamc@106	1550
adamc@311	1551 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1552 char *result;
adamc@136	1553 int len;
adamc@311	1554 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1555 result = ctx->heap.front;
adamc@136	1556 sprintf(result, "%g%n", n, &len);
adamc@666	1557 ctx->heap.front += len+1;
adamc@136	1558 return result;
adamc@106	1559 }
adamc@106	1560
adamc@311	1561 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1562 int len = strlen(s);
adamc@136	1563 char result, p;
adamc@311	1564 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1565
adamc@666	1566 result = p = ctx->heap.front;
adamc@136	1567
adamc@136	1568 for (; *s; s++) {
adamc@1054	1569 unsigned char c = *s;
adamc@136	1570
adamc@136	1571 if (c == '"') {
adamc@136	1572 strcpy(p, """);
adamc@136	1573 p += 6;
adamc@136	1574 } else if (c == '&') {
adamc@136	1575 strcpy(p, "&");
adamc@136	1576 p += 5;
adamc@136	1577 }
adamc@1059	1578 else
adamc@136	1579 *p++ = c;
adamc@136	1580 }
adamc@136	1581
adamc@137	1582 *p++ = 0;
adamc@666	1583 ctx->heap.front = p;
adamc@136	1584 return result;
adamc@106	1585 }
adamc@106	1586
adamc@1011	1587 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1588 char result, p;
adamc@1011	1589 uw_check_heap(ctx, 7);
adamc@1011	1590
adamc@1011	1591 result = p = ctx->heap.front;
adamc@1011	1592
adamc@1011	1593 if (c == '"') {
adamc@1011	1594 strcpy(p, """);
adamc@1011	1595 p += 6;
adamc@1011	1596 } else if (c == '&') {
adamc@1011	1597 strcpy(p, "&");
adamc@1011	1598 p += 5;
adamc@1011	1599 }
adamc@1059	1600 else
adamc@1011	1601 *p++ = c;
adamc@1011	1602
adamc@1011	1603 *p++ = 0;
adamc@1011	1604 ctx->heap.front = p;
adamc@1011	1605 return result;
adamc@1011	1606 }
adamc@1011	1607
adamc@721	1608 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1609 return s;
adamc@721	1610 }
adamc@721	1611
adamc@311	1612 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1613 int len;
adamc@117	1614
adamc@666	1615 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1616 ctx->page.front += len;
adamc@106	1617 }
adamc@106	1618
adamc@428	1619 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1620 uw_check(ctx, INTS_MAX);
adamc@311	1621 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1622
adamc@428	1623 return uw_unit_v;
adamc@106	1624 }
adamc@106	1625
adamc@428	1626 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1627 int len;
adamc@117	1628
adamc@311	1629 uw_check(ctx, FLOATS_MAX);
adamc@666	1630 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1631 ctx->page.front += len;
adamc@428	1632
adamc@428	1633 return uw_unit_v;
adamc@117	1634 }
adamc@117	1635
adamc@428	1636 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1637 uw_check(ctx, strlen(s) * 6);
adamc@117	1638
adamc@106	1639 for (; *s; s++) {
adamc@1054	1640 unsigned char c = *s;
adamc@106	1641
adamc@106	1642 if (c == '"')
adamc@311	1643 uw_write_unsafe(ctx, """);
adamc@136	1644 else if (c == '&')
adamc@311	1645 uw_write_unsafe(ctx, "&");
adamc@1059	1646 else
adamc@311	1647 uw_writec_unsafe(ctx, c);
adamc@106	1648 }
adamc@428	1649
adamc@428	1650 return uw_unit_v;
adamc@106	1651 }
adamc@120	1652
adamc@1011	1653 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1654 uw_check(ctx, 6);
adamc@1011	1655
adamc@1011	1656 if (c == '"')
adamc@1011	1657 uw_write_unsafe(ctx, """);
adamc@1011	1658 else if (c == '&')
adamc@1011	1659 uw_write_unsafe(ctx, "&");
adamc@1059	1660 else
adamc@1011	1661 uw_writec_unsafe(ctx, c);
adamc@1011	1662
adamc@1011	1663 return uw_unit_v;
adamc@1011	1664 }
adamc@1011	1665
adamc@120	1666
adamc@311	1667 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1668 int len;
adamc@137	1669 char *r;
adamc@137	1670
adamc@311	1671 uw_check_heap(ctx, INTS_MAX);
adamc@666	1672 r = ctx->heap.front;
adamc@276	1673 sprintf(r, "%lld%n", n, &len);
adamc@666	1674 ctx->heap.front += len+1;
adamc@137	1675 return r;
adamc@120	1676 }
adamc@120	1677
adamc@682	1678 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1679 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1680 return "";
adamc@682	1681 else {
adamc@682	1682 int len;
adamc@682	1683 char *r;
adamc@679	1684
adamc@682	1685 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1686 r = ctx->heap.front;
adamc@682	1687 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1688 ctx->heap.front += len+1;
adamc@682	1689 return r;
adamc@682	1690 }
adamc@679	1691 }
adamc@679	1692
adamc@311	1693 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1694 int len;
adamc@137	1695 char *r;
adamc@137	1696
adamc@311	1697 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1698 r = ctx->heap.front;
adamc@137	1699 sprintf(r, "%g%n", n, &len);
adamc@666	1700 ctx->heap.front += len+1;
adamc@137	1701 return r;
adamc@120	1702 }
adamc@120	1703
adamc@311	1704 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1705 char r, p;
adamc@137	1706
adamc@925	1707 if (s[0] == '\0')
adamc@925	1708 return "_";
adamc@925	1709
adamc@925	1710 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1711
adamc@925	1712 r = p = ctx->heap.front;
adamc@925	1713 if (s[0] == '_')
adamc@925	1714 *p++ = '_';
adamc@925	1715
adamc@925	1716 for (; *s; s++) {
adamc@1087	1717 unsigned char c = *s;
adamc@137	1718
adamc@137	1719 if (c == ' ')
adamc@137	1720 *p++ = '+';
adamc@137	1721 else if (isalnum(c))
adamc@137	1722 *p++ = c;
adamc@137	1723 else {
adamc@1259	1724 sprintf(p, ".%02X", c);
adamc@137	1725 p += 3;
adamc@137	1726 }
adamc@137	1727 }
adamc@137	1728
adamc@137	1729 *p++ = 0;
adamc@666	1730 ctx->heap.front = p;
adamc@137	1731 return r;
adamc@120	1732 }
adamc@120	1733
adamc@311	1734 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1735 if (b == uw_Basis_False)
adamc@186	1736 return "0";
adamc@186	1737 else
adamc@186	1738 return "1";
adamc@186	1739 }
adamc@186	1740
adamc@311	1741 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1742 int len;
adamc@120	1743
adamc@666	1744 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1745 ctx->page.front += len;
adamc@120	1746 }
adamc@120	1747
adamc@428	1748 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1749 uw_check(ctx, INTS_MAX);
adamc@311	1750 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1751
adamc@428	1752 return uw_unit_v;
adamc@120	1753 }
adamc@120	1754
adamc@682	1755 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1756 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1757 int len;
adamc@682	1758
adamc@682	1759 uw_check(ctx, INTS_MAX + 1);
adamc@682	1760 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1761 ctx->page.front += len;
adamc@682	1762 }
adamc@682	1763
adamc@679	1764 return uw_unit_v;
adamc@679	1765 }
adamc@679	1766
adamc@428	1767 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1768 int len;
adamc@120	1769
adamc@311	1770 uw_check(ctx, FLOATS_MAX);
adamc@666	1771 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1772 ctx->page.front += len;
adamc@428	1773
adamc@428	1774 return uw_unit_v;
adamc@120	1775 }
adamc@120	1776
adamc@488	1777 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1778 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1779 }
adamc@488	1780
adam@1404	1781 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1782 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1783 }
adam@1404	1784
adamc@428	1785 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1786 if (s[0] == '\0') {
adamc@925	1787 uw_check(ctx, 1);
adamc@925	1788 uw_writec_unsafe(ctx, '_');
adamc@925	1789 return uw_unit_v;
adamc@925	1790 }
adamc@925	1791
adamc@925	1792 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1793
adamc@925	1794 if (s[0] == '_')
adamc@925	1795 uw_writec_unsafe(ctx, '_');
adamc@120	1796
adamc@120	1797 for (; *s; s++) {
adamc@1087	1798 unsigned char c = *s;
adamc@120	1799
adamc@120	1800 if (c == ' ')
adamc@311	1801 uw_writec_unsafe(ctx, '+');
adamc@120	1802 else if (isalnum(c))
adamc@311	1803 uw_writec_unsafe(ctx, c);
adamc@120	1804 else {
adamc@1259	1805 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1806 ctx->page.front += 3;
adamc@120	1807 }
adamc@120	1808 }
adamc@428	1809
adamc@428	1810 return uw_unit_v;
adamc@120	1811 }
adamc@120	1812
adamc@428	1813 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1814 if (b == uw_Basis_False)
adamc@311	1815 uw_writec(ctx, '0');
adamc@186	1816 else
adamc@311	1817 uw_writec(ctx, '1');
adamc@428	1818
adamc@428	1819 return uw_unit_v;
adamc@186	1820 }
adamc@186	1821
adamc@120	1822
adamc@311	1823 static char uw_unurlify_advance(char s) {
adamc@144	1824 char *new_s = strchr(s, '/');
adamc@120	1825
adamc@120	1826 if (new_s)
adamc@120	1827 *new_s++ = 0;
adamc@120	1828 else
adamc@144	1829 new_s = strchr(s, 0);
adamc@144	1830
adamc@144	1831 return new_s;
adamc@144	1832 }
adamc@144	1833
adamc@311	1834 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1835 char new_s = uw_unurlify_advance(s);
adamc@311	1836 uw_Basis_int r;
adamc@120	1837
adamc@276	1838 r = atoll(*s);
adamc@120	1839 *s = new_s;
adamc@120	1840 return r;
adamc@120	1841 }
adamc@120	1842
adamc@311	1843 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1844 char new_s = uw_unurlify_advance(s);
adamc@311	1845 uw_Basis_float r;
adamc@120	1846
adamc@120	1847 r = atof(*s);
adamc@120	1848 *s = new_s;
adamc@120	1849 return r;
adamc@120	1850 }
adamc@120	1851
adamc@488	1852 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	1853 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	1854 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	1855 return r;
adamc@488	1856 }
adamc@488	1857
adamc@1023	1858 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1859 char s1, s2 = s;
adamc@144	1860 int n;
adamc@136	1861
adamc@1023	1862 if (!fromClient) {
adamc@1023	1863 if (*s2 == '_')
adamc@1023	1864 ++s2;
adamc@1259	1865 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1866 s2 += 3;
adamc@1023	1867 }
adamc@925	1868
adamc@927	1869 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	1870 unsigned char c = *s2;
adamc@136	1871
adamc@136	1872 switch (c) {
adamc@136	1873 case '+':
adamc@136	1874 *s1 = ' ';
adamc@136	1875 break;
adamc@136	1876 case '%':
adamc@169	1877 if (s2[1] == 0)
adamc@311	1878 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1879 if (s2[2] == 0)
adamc@311	1880 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1881 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	1882 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	1883 *s1 = n;
adamc@136	1884 s2 += 2;
adamc@136	1885 break;
adamc@1259	1886 case '.':
adamc@1259	1887 if (!fromClient) {
adamc@1259	1888 if (s2[1] == 0)
adamc@1259	1889 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	1890 if (s2[2] == 0)
adamc@1259	1891 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	1892 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	1893 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	1894 *s1 = n;
adamc@1259	1895 s2 += 2;
adamc@1259	1896 break;
adamc@1259	1897 }
adamc@136	1898 default:
adamc@136	1899 *s1 = c;
adamc@136	1900 }
adamc@136	1901 }
adamc@136	1902 *s1++ = 0;
adamc@144	1903 return s1;
adamc@144	1904 }
adamc@144	1905
adamc@311	1906 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	1907 char new_s = uw_unurlify_advance(s);
adamc@311	1908 uw_Basis_bool r;
adamc@186	1909
adamc@186	1910 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	1911 r = uw_Basis_False;
adamc@186	1912 else
adamc@311	1913 r = uw_Basis_True;
adamc@186	1914
adamc@186	1915 *s = new_s;
adamc@186	1916 return r;
adamc@186	1917 }
adamc@186	1918
adamc@311	1919 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	1920 char new_s = uw_unurlify_advance(s);
adamc@1134	1921 char *r;
adamc@1134	1922 int len;
adamc@144	1923
adamc@200	1924 len = strlen(*s);
adamc@311	1925 uw_check_heap(ctx, len + 1);
adamc@144	1926
adamc@666	1927 r = ctx->heap.front;
adamc@1023	1928 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	1929 *s = new_s;
adamc@1023	1930 return r;
adamc@1023	1931 }
adamc@1023	1932
adamc@1109	1933 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	1934 s = uw_unurlify_advance(s);
adamc@1109	1935 return uw_unit_v;
adamc@1109	1936 }
adamc@1109	1937
adamc@1023	1938 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	1939 char new_s = uw_unurlify_advance(s);
adamc@1134	1940 char *r;
adamc@1134	1941 int len;
adamc@1023	1942
adamc@1023	1943 len = strlen(*s);
adamc@1023	1944 uw_check_heap(ctx, len + 1);
adamc@1023	1945
adamc@1023	1946 r = ctx->heap.front;
adamc@1023	1947 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	1948 *s = new_s;
adamc@136	1949 return r;
adamc@120	1950 }
adamc@135	1951
adamc@135	1952
adamc@311	1953 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	1954 int len;
adamc@286	1955 char *r;
adamc@286	1956
adamc@311	1957 uw_check_heap(ctx, INTS_MAX);
adamc@666	1958 r = ctx->heap.front;
adamc@286	1959 sprintf(r, "%lld%n", n, &len);
adamc@666	1960 ctx->heap.front += len+1;
adamc@286	1961 return r;
adamc@286	1962 }
adamc@286	1963
adamc@428	1964 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	1965 int len;
adamc@286	1966
adamc@311	1967 uw_check(ctx, INTS_MAX);
adamc@666	1968 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1969 ctx->page.front += len;
adamc@428	1970
adamc@428	1971 return uw_unit_v;
adamc@286	1972 }
adamc@286	1973
adam@1358	1974 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	1975 unsigned int n = ch;
adam@1358	1976 int len;
adam@1358	1977 char *r;
adam@1358	1978
adam@1358	1979 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	1980 r = ctx->heap.front;
adam@1358	1981 sprintf(r, "&#%u;%n", n, &len);
adam@1358	1982 ctx->heap.front += len+1;
adam@1358	1983 return r;
adam@1358	1984 }
adam@1358	1985
adam@1358	1986 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	1987 unsigned int n = ch;
adam@1358	1988 int len;
adam@1358	1989
adam@1358	1990 uw_check(ctx, INTS_MAX+3);
adam@1358	1991 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	1992 ctx->page.front += len;
adam@1358	1993 return uw_unit_v;
adam@1358	1994 }
adam@1358	1995
adamc@311	1996 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	1997 int len;
adamc@286	1998 char *r;
adamc@286	1999
adamc@311	2000 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2001 r = ctx->heap.front;
adamc@286	2002 sprintf(r, "%g%n", n, &len);
adamc@666	2003 ctx->heap.front += len+1;
adamc@286	2004 return r;
adamc@286	2005 }
adamc@286	2006
adamc@428	2007 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2008 int len;
adamc@286	2009
adamc@311	2010 uw_check(ctx, FLOATS_MAX);
adamc@666	2011 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2012 ctx->page.front += len;
adamc@428	2013
adamc@428	2014 return uw_unit_v;
adamc@286	2015 }
adamc@286	2016
adam@1365	2017 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2018 int len;
adam@1360	2019 char *r;
adam@1360	2020
adam@1360	2021 uw_check_heap(ctx, INTS_MAX);
adam@1360	2022 r = ctx->heap.front;
adamc@1377	2023 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2024 ctx->heap.front += len+1;
adam@1360	2025 return r;
adam@1360	2026 }
adam@1360	2027
adam@1365	2028 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2029 int len;
adam@1360	2030
adam@1360	2031 uw_check(ctx, INTS_MAX);
adam@1360	2032 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2033 ctx->page.front += len;
adam@1360	2034
adam@1360	2035 return uw_unit_v;
adam@1360	2036 }
adam@1360	2037
adam@1444	2038 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2039 char r, s2;
adamc@137	2040
adamc@311	2041 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2042
adamc@666	2043 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2044 unsigned char c = *s;
adamc@137	2045
adamc@137	2046 switch (c) {
adamc@137	2047 case '<':
adamc@137	2048 strcpy(s2, "<");
adamc@137	2049 s2 += 4;
adamc@137	2050 break;
adamc@137	2051 case '&':
adamc@137	2052 strcpy(s2, "&");
adamc@137	2053 s2 += 5;
adamc@137	2054 break;
adamc@137	2055 default:
adamc@1059	2056 *s2++ = c;
adamc@137	2057 }
adamc@137	2058 }
adamc@137	2059
adamc@137	2060 *s2++ = 0;
adamc@666	2061 ctx->heap.front = s2;
adamc@137	2062 return r;
adamc@135	2063 }
adamc@135	2064
adamc@428	2065 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2066 uw_check(ctx, strlen(s) * 6);
adamc@135	2067
adamc@135	2068 for (; *s; s++) {
adamc@1054	2069 unsigned char c = *s;
adamc@135	2070
adamc@135	2071 switch (c) {
adamc@135	2072 case '<':
adamc@311	2073 uw_write_unsafe(ctx, "<");
adamc@135	2074 break;
adamc@135	2075 case '&':
adamc@311	2076 uw_write_unsafe(ctx, "&");
adamc@135	2077 break;
adamc@135	2078 default:
adamc@1059	2079 uw_writec_unsafe(ctx, c);
adamc@135	2080 }
adamc@135	2081 }
adamc@428	2082
adamc@428	2083 return uw_unit_v;
adamc@135	2084 }
adamc@180	2085
adamc@311	2086 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2087 if (b == uw_Basis_False)
adamc@286	2088 return "False";
adamc@286	2089 else
adamc@286	2090 return "True";
adamc@286	2091 }
adamc@286	2092
adamc@428	2093 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2094 if (b == uw_Basis_False) {
adamc@311	2095 uw_check(ctx, 6);
adamc@666	2096 strcpy(ctx->page.front, "False");
adamc@666	2097 ctx->page.front += 5;
adamc@286	2098 } else {
adamc@311	2099 uw_check(ctx, 5);
adamc@666	2100 strcpy(ctx->page.front, "True");
adamc@666	2101 ctx->page.front += 4;
adamc@286	2102 }
adamc@428	2103
adamc@428	2104 return uw_unit_v;
adamc@286	2105 }
adamc@286	2106
adamc@436	2107 #define TIME_FMT "%x %X"
adamc@438	2108 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436	2109
adamc@436	2110 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436	2111 size_t len;
adamc@436	2112 char *r;
adam@1392	2113 struct tm stm = {};
adam@1392	2114 stm.tm_isdst = -1;
adamc@436	2115
adam@1365	2116 if (localtime_r(&t.seconds, &stm)) {
adamc@436	2117 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2118 r = ctx->heap.front;
adamc@436	2119 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2120 ctx->heap.front += len+1;
adamc@436	2121 return r;
adamc@436	2122 } else
adamc@436	2123 return "<i>Invalid time</i>";
adamc@436	2124 }
adamc@436	2125
adamc@436	2126 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436	2127 size_t len;
adamc@436	2128 char *r;
adam@1392	2129 struct tm stm = {};
adam@1392	2130 stm.tm_isdst = -1;
adamc@436	2131
adam@1365	2132 if (localtime_r(&t.seconds, &stm)) {
adamc@436	2133 uw_check(ctx, TIMES_MAX);
adamc@666	2134 r = ctx->page.front;
adamc@436	2135 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2136 ctx->page.front += len;
adamc@436	2137 } else {
adamc@436	2138 uw_check(ctx, 20);
adamc@666	2139 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666	2140 ctx->page.front += 19;
adamc@436	2141 }
adamc@436	2142
adamc@436	2143 return uw_unit_v;
adamc@436	2144 }
adamc@436	2145
adam@1446	2146 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2147 int len;
adam@1446	2148 char *r;
adam@1446	2149
adam@1446	2150 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2151 r = ctx->heap.front;
adam@1446	2152 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2153 ctx->heap.front += len+1;
adam@1446	2154 return r;
adam@1446	2155 }
adam@1446	2156
adam@1446	2157 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2158 int len;
adam@1446	2159
adam@1446	2160 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2161 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2162 ctx->page.front += len;
adam@1446	2163
adam@1446	2164 return uw_unit_v;
adam@1446	2165 }
adam@1446	2166
adamc@821	2167 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2168 while (n >= 0) {
adam@1388	2169 if (*s == 0)
adam@1388	2170 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2171
adam@1388	2172 if (n == 0)
adam@1388	2173 return *s;
adam@1388	2174
adam@1388	2175 --n;
adam@1388	2176 ++s;
adam@1388	2177 }
adam@1388	2178
adam@1388	2179 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2180 }
adamc@821	2181
adamc@821	2182 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2183 while (n >= 0) {
adam@1388	2184 if (*s == 0 \|\| n == 0)
adam@1388	2185 return s;
adam@1388	2186
adam@1388	2187 --n;
adam@1388	2188 ++s;
adam@1388	2189 }
adam@1388	2190
adam@1388	2191 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2192 }
adamc@821	2193
adamc@828	2194 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2195 return strlen(s);
adamc@828	2196 }
adamc@828	2197
adam@1388	2198 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2199 while (n > 0) {
adam@1388	2200 if (*s == 0)
adam@1388	2201 return uw_Basis_False;
adam@1388	2202
adam@1388	2203 --n;
adam@1388	2204 ++s;
adam@1388	2205 }
adam@1388	2206
adam@1388	2207 return uw_Basis_True;
adam@1388	2208 }
adam@1388	2209
adamc@829	2210 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2211 return strchr(s, ch);
adamc@829	2212 }
adamc@829	2213
adamc@831	2214 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2215 return strcspn(s, chs);
adamc@831	2216 }
adamc@831	2217
adamc@829	2218 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2219 uw_Basis_string r = strchr(s, ch);
adamc@829	2220 if (r == NULL)
adamc@829	2221 return NULL;
adamc@829	2222 else {
adamc@829	2223 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2224 *nr = r - s;
adamc@829	2225 return nr;
adamc@829	2226 }
adamc@829	2227 }
adamc@829	2228
adam@1390	2229 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2230 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2231 if (r == NULL)
adam@1390	2232 return NULL;
adam@1390	2233 else {
adam@1390	2234 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2235 *nr = r - haystack;
adam@1390	2236 return nr;
adam@1390	2237 }
adam@1390	2238 }
adam@1390	2239
adamc@311	2240 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2241 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2242 char *s;
adamc@180	2243
adamc@311	2244 uw_check_heap(ctx, len);
adamc@180	2245
adamc@666	2246 s = ctx->heap.front;
adamc@180	2247
adamc@180	2248 strcpy(s, s1);
adamc@180	2249 strcat(s, s2);
adamc@666	2250 ctx->heap.front += len;
adamc@180	2251
adamc@180	2252 return s;
adamc@180	2253 }
adamc@278	2254
adamc@829	2255 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2256 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2257
adamc@829	2258 if (start < 0)
adamc@829	2259 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2260 if (len < 0)
adamc@829	2261 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2262 if (start + len > full_len)
adamc@829	2263 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2264
adamc@829	2265 if (start + len == full_len)
adamc@829	2266 return &s[start];
adamc@829	2267 else {
adamc@829	2268 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2269 memcpy(r, s+start, len);
adamc@829	2270 r[len] = 0;
adamc@829	2271 return r;
adamc@829	2272 }
adamc@829	2273
adamc@829	2274 }
adamc@829	2275
adamc@1023	2276 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2277 char *r;
adamc@1023	2278
adamc@1023	2279 uw_check_heap(ctx, 2);
adamc@1023	2280 r = ctx->heap.front;
adamc@1023	2281 r[0] = ch;
adamc@1023	2282 r[1] = 0;
adamc@1023	2283
adamc@1023	2284 ctx->heap.front += 2;
adamc@1023	2285
adamc@1023	2286 return r;
adamc@1023	2287 }
adamc@1023	2288
adamc@737	2289 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2290 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2291 char *s;
adamc@278	2292
adamc@311	2293 uw_check_heap(ctx, len);
adamc@278	2294
adamc@666	2295 s = ctx->heap.front;
adamc@278	2296
adamc@278	2297 strcpy(s, s1);
adamc@666	2298 ctx->heap.front += len;
adamc@278	2299
adamc@278	2300 return s;
adamc@278	2301 }
adamc@280	2302
adam@1295	2303 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2304 if (ctx->error_message[0]) {
adam@1295	2305 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2306 ctx->error_message[0] = 0;
adam@1295	2307 return s;
adam@1295	2308 } else
adam@1295	2309 return NULL;
adam@1295	2310 }
adam@1295	2311
adamc@737	2312 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2313 if (s1)
adamc@737	2314 return uw_strdup(ctx, s1);
adamc@493	2315 else
adamc@493	2316 return NULL;
adamc@493	2317 }
adamc@493	2318
adamc@742	2319 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2320 char *r = uw_malloc(ctx, len);
adamc@742	2321 memcpy(r, p, len);
adamc@742	2322 return r;
adamc@742	2323 }
adamc@280	2324
adamc@879	2325 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2326
adamc@311	2327 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2328 int len;
adamc@281	2329 char *r;
adamc@281	2330
adamc@311	2331 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2332 r = ctx->heap.front;
adamc@879	2333 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2334 ctx->heap.front += len+1;
adamc@281	2335 return r;
adamc@281	2336 }
adamc@281	2337
adamc@467	2338 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2339 if (n == NULL)
adamc@467	2340 return "NULL";
adamc@467	2341 else
adamc@467	2342 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2343 }
adamc@467	2344
adamc@879	2345 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879	2346
adamc@311	2347 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2348 int len;
adamc@281	2349 char *r;
adamc@281	2350
adamc@311	2351 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2352 r = ctx->heap.front;
adamc@879	2353 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2354 ctx->heap.front += len+1;
adamc@281	2355 return r;
adamc@281	2356 }
adamc@281	2357
adamc@467	2358 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2359 if (n == NULL)
adamc@467	2360 return "NULL";
adamc@467	2361 else
adamc@467	2362 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2363 }
adamc@467	2364
adamc@879	2365 int uw_Estrings = 1;
adamc@879	2366 char *uw_sqlsuffixString = "::text";
adamc@1011	2367 char *uw_sqlsuffixChar = "::char";
adamc@281	2368
adamc@311	2369 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2370 char r, s2;
adamc@280	2371
adamc@879	2372 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2373
adamc@666	2374 r = s2 = ctx->heap.front;
adamc@879	2375 if (uw_Estrings)
adamc@879	2376 *s2++ = 'E';
adamc@280	2377 *s2++ = '\'';
adamc@280	2378
adamc@280	2379 for (; *s; s++) {
adamc@280	2380 char c = *s;
adamc@280	2381
adamc@280	2382 switch (c) {
adamc@280	2383 case '\'':
adamc@885	2384 if (uw_Estrings)
adamc@885	2385 strcpy(s2, "\\'");
adamc@885	2386 else
adamc@885	2387 strcpy(s2, "''");
adamc@280	2388 s2 += 2;
adamc@280	2389 break;
adamc@280	2390 case '\\':
adamc@885	2391 if (uw_Estrings) {
adamc@885	2392 strcpy(s2, "\\\\");
adamc@885	2393 s2 += 2;
adamc@885	2394 } else
adamc@885	2395 *s2++ = '\\';
adamc@280	2396 break;
adamc@280	2397 default:
adamc@1150	2398 if (isprint((int)c))
adamc@280	2399 *s2++ = c;
adamc@879	2400 else if (uw_Estrings) {
adamc@737	2401 sprintf(s2, "\\%03o", c);
adamc@280	2402 s2 += 4;
adamc@280	2403 }
adamc@879	2404 else
adamc@879	2405 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280	2406 }
adamc@280	2407 }
adamc@280	2408
adamc@879	2409 *s2++ = '\'';
adamc@879	2410 strcpy(s2, uw_sqlsuffixString);
adamc@879	2411 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2412 return r;
adamc@280	2413 }
adamc@281	2414
adamc@1011	2415 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2416 char r, s2;
adamc@1011	2417
adamc@1011	2418 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2419
adamc@1011	2420 r = s2 = ctx->heap.front;
adamc@1011	2421 if (uw_Estrings)
adamc@1011	2422 *s2++ = 'E';
adamc@1011	2423 *s2++ = '\'';
adamc@1011	2424
adamc@1011	2425 switch (c) {
adamc@1011	2426 case '\'':
adamc@1011	2427 if (uw_Estrings)
adamc@1011	2428 strcpy(s2, "\\'");
adamc@1011	2429 else
adamc@1011	2430 strcpy(s2, "''");
adamc@1011	2431 s2 += 2;
adamc@1011	2432 break;
adamc@1011	2433 case '\\':
adamc@1011	2434 if (uw_Estrings) {
adamc@1011	2435 strcpy(s2, "\\\\");
adamc@1011	2436 s2 += 2;
adamc@1011	2437 } else
adamc@1011	2438 *s2++ = '\\';
adamc@1011	2439 break;
adamc@1011	2440 default:
adamc@1150	2441 if (isprint((int)c))
adamc@1011	2442 *s2++ = c;
adamc@1011	2443 else if (uw_Estrings) {
adamc@1011	2444 sprintf(s2, "\\%03o", c);
adamc@1011	2445 s2 += 4;
adamc@1011	2446 }
adamc@1011	2447 else
adamc@1011	2448 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2449 }
adamc@1011	2450
adamc@1011	2451 *s2++ = '\'';
adamc@1011	2452 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2453 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2454 return r;
adamc@1011	2455 }
adamc@1011	2456
adamc@879	2457 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2458
adamc@737	2459 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2460 char r, s2;
adamc@737	2461 size_t i;
adamc@737	2462
adamc@879	2463 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737	2464
adamc@737	2465 r = s2 = ctx->heap.front;
adamc@879	2466 if (uw_Estrings)
adamc@879	2467 *s2++ = 'E';
adamc@737	2468 *s2++ = '\'';
adamc@737	2469
adamc@737	2470 for (i = 0; i < b.size; ++i) {
adamc@737	2471 char c = b.data[i];
adamc@737	2472
adamc@737	2473 switch (c) {
adamc@737	2474 case '\'':
adamc@885	2475 if (uw_Estrings)
adamc@885	2476 strcpy(s2, "\\'");
adamc@885	2477 else
adamc@885	2478 strcpy(s2, "''");
adamc@737	2479 s2 += 2;
adamc@737	2480 break;
adamc@737	2481 case '\\':
adamc@885	2482 if (uw_Estrings) {
adamc@885	2483 strcpy(s2, "\\\\\\\\");
adamc@885	2484 s2 += 4;
adamc@885	2485 } else
adamc@885	2486 *s2++ = '\\';
adamc@737	2487 break;
adamc@737	2488 default:
adamc@1150	2489 if (isprint((int)c))
adamc@737	2490 *s2++ = c;
adamc@879	2491 else if (uw_Estrings) {
adamc@737	2492 sprintf(s2, "\\\\%03o", c);
adamc@737	2493 s2 += 5;
adamc@737	2494 }
adamc@879	2495 else
adamc@879	2496 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737	2497 }
adamc@737	2498 }
adamc@737	2499
adamc@879	2500 *s2++ = '\'';
adamc@879	2501 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2502 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2503 return r;
adamc@737	2504 }
adamc@737	2505
adamc@682	2506 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2507 int len;
adamc@682	2508 char *r;
adamc@682	2509 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2510
adamc@682	2511 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2512 r = ctx->heap.front;
adamc@879	2513 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2514 ctx->heap.front += len+1;
adamc@682	2515 return r;
adamc@682	2516 }
adamc@682	2517
adamc@682	2518 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2519 int len;
adamc@682	2520 char *r;
adamc@682	2521 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2522
adamc@682	2523 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2524 r = ctx->heap.front;
adamc@682	2525 sprintf(r, "%lld%n", combo, &len);
adamc@682	2526 ctx->heap.front += len+1;
adamc@682	2527 return r;
adamc@682	2528 }
adamc@682	2529
adamc@879	2530 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2531
adamc@682	2532 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2533 int len;
adamc@682	2534 char *r;
adamc@682	2535
adamc@682	2536 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2537 r = ctx->heap.front;
adamc@879	2538 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2539 ctx->heap.front += len+1;
adamc@682	2540 return r;
adamc@682	2541 }
adamc@682	2542
adamc@682	2543 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2544 int len;
adamc@682	2545 char *r;
adamc@682	2546
adamc@682	2547 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2548 r = ctx->heap.front;
adamc@682	2549 sprintf(r, "%u%n", cli, &len);
adamc@682	2550 ctx->heap.front += len+1;
adamc@682	2551 return r;
adamc@682	2552 }
adamc@682	2553
adamc@467	2554 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2555 if (s == NULL)
adamc@467	2556 return "NULL";
adamc@467	2557 else
adamc@467	2558 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2559 }
adamc@467	2560
adamc@311	2561 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2562 if (b == uw_Basis_False)
adamc@281	2563 return "FALSE";
adamc@281	2564 else
adamc@281	2565 return "TRUE";
adamc@281	2566 }
adamc@282	2567
adamc@467	2568 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2569 if (b == NULL)
adamc@467	2570 return "NULL";
adamc@467	2571 else
adamc@467	2572 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2573 }
adamc@467	2574
adamc@439	2575 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2576 size_t len;
adamc@682	2577 char r, s;
adam@1392	2578 struct tm stm = {};
adam@1392	2579 stm.tm_isdst = -1;
adamc@682	2580
adam@1365	2581 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2582 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2583 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1367	2584 if (t.microseconds) {
adam@1367	2585 r = uw_malloc(ctx, len + 21);
adam@1367	2586 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1367	2587 } else {
adam@1367	2588 r = uw_malloc(ctx, len + 14);
adam@1367	2589 sprintf(r, "'%s'::timestamp", s);
adam@1367	2590 }
adamc@682	2591 return r;
adamc@682	2592 } else
adamc@682	2593 return "<Invalid time>";
adamc@682	2594 }
adamc@682	2595
adamc@682	2596 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2597 size_t len;
adamc@439	2598 char *r;
adam@1392	2599 struct tm stm = {};
adam@1392	2600 stm.tm_isdst = -1;
adamc@439	2601
adam@1365	2602 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2603 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2604 r = ctx->heap.front;
adamc@439	2605 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2606 ctx->heap.front += len+1;
adamc@439	2607 return r;
adamc@439	2608 } else
adamc@439	2609 return "<Invalid time>";
adamc@439	2610 }
adamc@439	2611
adam@1364	2612 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2613 size_t len;
adam@1364	2614 char *r;
adam@1392	2615 struct tm stm = {};
adam@1392	2616 stm.tm_isdst = -1;
adam@1364	2617
adam@1365	2618 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2619 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2620 r = ctx->heap.front;
adam@1365	2621 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2622 ctx->heap.front += len;
adam@1365	2623 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2624 ctx->heap.front += 8;
adam@1364	2625 return r;
adam@1364	2626 } else
adam@1364	2627 return "<Invalid time>";
adam@1364	2628 }
adam@1364	2629
adamc@467	2630 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2631 if (t == NULL)
adamc@467	2632 return "NULL";
adamc@467	2633 else
adamc@467	2634 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2635 }
adamc@467	2636
adamc@311	2637 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2638 static uw_Basis_int true = 1;
adamc@311	2639 static uw_Basis_int false = 0;
adamc@282	2640
adamc@311	2641 if (b == uw_Basis_False)
adamc@282	2642 return (char *)&false;
adamc@282	2643 else
adamc@282	2644 return (char *)&true;
adamc@282	2645 }
adamc@284	2646
adamc@311	2647 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2648 int len;
adamc@284	2649 char *r;
adamc@284	2650
adamc@311	2651 uw_check_heap(ctx, INTS_MAX);
adamc@666	2652 r = ctx->heap.front;
adamc@284	2653 sprintf(r, "%lld%n", n, &len);
adamc@666	2654 ctx->heap.front += len+1;
adamc@284	2655 return r;
adamc@284	2656 }
adamc@285	2657
adamc@311	2658 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2659 int len;
adamc@285	2660 char *r;
adamc@285	2661
adamc@311	2662 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2663 r = ctx->heap.front;
adamc@285	2664 sprintf(r, "%g%n", n, &len);
adamc@666	2665 ctx->heap.front += len+1;
adamc@285	2666 return r;
adamc@285	2667 }
adamc@285	2668
adamc@821	2669 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2670 char *r = uw_malloc(ctx, 2);
adamc@821	2671 r[0] = ch;
adamc@821	2672 r[1] = 0;
adamc@821	2673 return r;
adamc@821	2674 }
adamc@821	2675
adamc@311	2676 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2677 if (b == uw_Basis_False)
adamc@285	2678 return "False";
adamc@285	2679 else
adamc@285	2680 return "True";
adamc@285	2681 }
adamc@288	2682
adamc@436	2683 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436	2684 size_t len;
adamc@436	2685 char *r;
adam@1392	2686 struct tm stm = {};
adam@1392	2687 stm.tm_isdst = -1;
adamc@436	2688
adam@1365	2689 if (localtime_r(&t.seconds, &stm)) {
adamc@436	2690 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2691 r = ctx->heap.front;
adamc@436	2692 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2693 ctx->heap.front += len+1;
adamc@436	2694 return r;
adamc@436	2695 } else
adamc@436	2696 return "<Invalid time>";
adamc@436	2697 }
adamc@288	2698
adam@1359	2699 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2700 size_t len;
adam@1352	2701 char *r;
adam@1392	2702 struct tm stm = {};
adam@1392	2703 stm.tm_isdst = -1;
adam@1352	2704
adam@1365	2705 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2706 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2707 r = ctx->heap.front;
adam@1352	2708 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2709 ctx->heap.front += len+1;
adam@1352	2710 return r;
adam@1352	2711 } else
adam@1352	2712 return "<Invalid time>";
adam@1352	2713 }
adam@1352	2714
adamc@311	2715 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2716 char *endptr;
adamc@311	2717 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2718
adamc@288	2719 if (s != '\0' && endptr == '\0') {
adamc@311	2720 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2721 *r = n;
adamc@288	2722 return r;
adamc@288	2723 } else
adamc@288	2724 return NULL;
adamc@288	2725 }
adamc@289	2726
adamc@311	2727 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2728 char *endptr;
adamc@311	2729 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2730
adamc@289	2731 if (s != '\0' && endptr == '\0') {
adamc@311	2732 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2733 *r = n;
adamc@289	2734 return r;
adamc@289	2735 } else
adamc@289	2736 return NULL;
adamc@289	2737 }
adamc@289	2738
adamc@821	2739 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2740 if (s[0] == 0) {
adamc@821	2741 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2742 r[0] = 0;
adamc@821	2743 return r;
adamc@821	2744 } else if (s[1] != 0)
adamc@821	2745 return NULL;
adamc@821	2746 else {
adamc@821	2747 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2748 r[0] = s[0];
adamc@821	2749 return r;
adamc@821	2750 }
adamc@821	2751 }
adamc@821	2752
adamc@311	2753 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2754 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2755 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2756
adamc@289	2757 if (!strcasecmp (s, "True"))
adamc@289	2758 return &true;
adamc@289	2759 else if (!strcasecmp (s, "False"))
adamc@289	2760 return &false;
adamc@289	2761 else
adamc@289	2762 return NULL;
adamc@289	2763 }
adamc@292	2764
adamc@436	2765 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2766 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2767 struct tm stm = {};
adam@1392	2768 stm.tm_isdst = -1;
adamc@436	2769
adamc@439	2770 if (dot) {
adamc@439	2771 *dot = 0;
adamc@439	2772 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2773 *dot = '.';
adamc@439	2774 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2775 r->seconds = mktime(&stm);
adam@1365	2776 r->microseconds = 0;
adamc@439	2777 return r;
adamc@439	2778 }
adamc@439	2779 else {
adamc@439	2780 *dot = '.';
adamc@439	2781 return NULL;
adamc@439	2782 }
adamc@436	2783 }
adamc@439	2784 else {
adamc@439	2785 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2786 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2787 r->seconds = mktime(&stm);
adam@1365	2788 r->microseconds = 0;
adamc@439	2789 return r;
adamc@439	2790 }
adamc@439	2791 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2792 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2793 r->seconds = mktime(&stm);
adam@1365	2794 r->microseconds = 0;
adamc@439	2795 return r;
adamc@439	2796 }
adamc@439	2797 else
adamc@439	2798 return NULL;
adamc@439	2799 }
adamc@436	2800 }
adamc@436	2801
adam@1352	2802 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2803 char *end = strchr(s, 0);
adam@1374	2804 struct tm stm = {};
adam@1392	2805 stm.tm_isdst = -1;
adam@1352	2806
adam@1352	2807 if (strptime(s, fmt, &stm) == end) {
adam@1352	2808 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2809 r->seconds = mktime(&stm);
adam@1365	2810 r->microseconds = 0;
adam@1352	2811 return r;
adam@1352	2812 }
adam@1352	2813 else
adam@1352	2814 return NULL;
adam@1352	2815 }
adam@1352	2816
adamc@311	2817 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2818 char *endptr;
adamc@311	2819 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2820
adamc@292	2821 if (s != '\0' && endptr == '\0')
adamc@292	2822 return n;
adamc@292	2823 else
adam@1444	2824 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2825 }
adamc@293	2826
adamc@682	2827 #include <errno.h>
adamc@682	2828
adamc@678	2829 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2830 unsigned long long n;
adamc@682	2831
adamc@682	2832 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2833 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	2834 else {
adamc@682	2835 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2836 return ch;
adamc@682	2837 }
adamc@682	2838 }
adamc@682	2839
adamc@682	2840 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2841 char *endptr;
adamc@682	2842 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2843
adamc@678	2844 if (s != '\0' && endptr == '\0')
adamc@678	2845 return n;
adamc@678	2846 else
adam@1444	2847 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	2848 }
adamc@678	2849
adamc@311	2850 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2851 char *endptr;
adamc@311	2852 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2853
adamc@293	2854 if (s != '\0' && endptr == '\0')
adamc@293	2855 return n;
adamc@293	2856 else
adam@1444	2857 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2858 }
adamc@293	2859
adamc@821	2860 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2861 if (s[0] == 0)
adamc@821	2862 return 0;
adamc@821	2863 else if (s[1] != 0)
adam@1444	2864 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	2865 else
adamc@821	2866 return s[0];
adamc@821	2867 }
adamc@821	2868
adamc@311	2869 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2870 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2871 return uw_Basis_True;
adamc@296	2872 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2873 return uw_Basis_False;
adamc@293	2874 else
adam@1444	2875 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2876 }
adamc@436	2877
adam@1352	2878 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	2879 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	2880 struct tm stm = {};
adam@1392	2881 stm.tm_isdst = -1;
adam@1352	2882
adam@1352	2883 if (dot) {
adam@1352	2884 *dot = 0;
adam@1352	2885 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	2886 *dot = '.';
adam@1410	2887 char usec[] = "000000";
adam@1410	2888 int len = strlen(dot+1);
adam@1410	2889 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	2890 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	2891 return r;
adam@1352	2892 }
adam@1352	2893 else {
adam@1352	2894 *dot = '.';
adam@1444	2895 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	2896 }
adam@1352	2897 }
adam@1352	2898 else {
adam@1352	2899 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	2900 uw_Basis_time r = { mktime(&stm) };
adam@1365	2901 return r;
adam@1352	2902 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	2903 uw_Basis_time r = { mktime(&stm) };
adam@1365	2904 return r;
adam@1352	2905 } else
adam@1444	2906 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	2907 }
adam@1352	2908 }
adam@1352	2909
adamc@436	2910 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2911 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2912 struct tm stm = {};
adam@1392	2913 stm.tm_isdst = -1;
adamc@436	2914
adamc@438	2915 if (dot) {
adamc@438	2916 *dot = 0;
adamc@438	2917 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2918 *dot = '.';
adam@1365	2919 {
adam@1365	2920 uw_Basis_time r = { mktime(&stm) };
adam@1365	2921 return r;
adam@1365	2922 }
adamc@438	2923 }
adamc@438	2924 else {
adamc@438	2925 *dot = '.';
adam@1444	2926 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	2927 }
adamc@438	2928 }
adamc@438	2929 else {
adam@1365	2930 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	2931 uw_Basis_time r = { mktime(&stm) };
adam@1365	2932 return r;
adam@1365	2933 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	2934 uw_Basis_time r = { mktime(&stm) };
adam@1365	2935 return r;
adam@1365	2936 } else
adam@1444	2937 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	2938 }
adamc@436	2939 }
adamc@457	2940
adam@1352	2941 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	2942 char *end = strchr(s, 0);
adamc@939	2943 struct tm stm = {};
adam@1392	2944 stm.tm_isdst = -1;
adamc@939	2945
adam@1365	2946 if (strptime(s, fmt, &stm) == end) {
adam@1365	2947 uw_Basis_time r = { mktime(&stm) };
adam@1365	2948 return r;
adam@1365	2949 } else
adam@1444	2950 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	2951 }
adamc@939	2952
adamc@742	2953 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	2954 char *r = ctx->heap.front;
adamc@742	2955 uw_Basis_blob b = {len, r};
adamc@742	2956
adamc@742	2957 uw_check_heap(ctx, len);
adamc@742	2958
adamc@742	2959 while (*s) {
adamc@742	2960 if (s[0] == '\\') {
adamc@742	2961 if (s[1] == '\\') {
adamc@742	2962 *r++ = '\\';
adamc@742	2963 s += 2;
adamc@1153	2964 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adamc@742	2965 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	2966 s += 4;
adamc@742	2967 }
adamc@742	2968 else {
adamc@742	2969 *r++ = '\\';
adamc@742	2970 ++s;
adamc@742	2971 }
adamc@742	2972 } else {
adamc@742	2973 *r++ = s[0];
adamc@742	2974 ++s;
adamc@742	2975 }
adamc@742	2976 }
adamc@742	2977
adamc@742	2978 b.size = r - ctx->heap.front;
adamc@742	2979 ctx->heap.front = r;
adamc@742	2980 return b;
adamc@742	2981 }
adamc@742	2982
adam@1402	2983 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	2984
adamc@463	2985 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	2986 int len = strlen(c);
adamc@854	2987 char *p = ctx->outHeaders.start;
adamc@474	2988
adamc@1134	2989 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	2990 char *p2;
adamc@474	2991 p += 13;
adamc@474	2992 p2 = strchr(p, '=');
adamc@474	2993
adamc@474	2994 if (p2) {
adamc@474	2995 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	2996
adamc@474	2997 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	2998 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	2999 return NULL;
adamc@1052	3000 else {
adamc@1052	3001 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3002 memcpy(ret, p2+1, sz);
adamc@1052	3003 ret[sz] = 0;
adamc@1052	3004 return ret;
adamc@1052	3005 }
adamc@474	3006 }
adamc@474	3007 }
adamc@474	3008 }
adamc@463	3009
adamc@1134	3010 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3011 char *p2;
adamc@1051	3012
adamc@854	3013 while (1) {
adamc@1051	3014 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3015 if ((p2 = strchr(p, ';'))) {
adamc@1051	3016 size_t n = p2 - (p + len);
adamc@1051	3017 char *r = uw_malloc(ctx, n);
adamc@1051	3018 memcpy(r, p + 1 + len, n-1);
adamc@1051	3019 r[n-1] = 0;
adamc@1051	3020 return r;
adamc@1051	3021 } else
adamc@1051	3022 return p + 1 + len;
adamc@1134	3023 } else if ((p = strchr(p, ';')))
adamc@854	3024 p += 2;
adamc@463	3025 else
adamc@463	3026 return NULL;
adamc@463	3027 }
adamc@463	3028 }
adamc@792	3029
adamc@792	3030 return NULL;
adamc@457	3031 }
adamc@462	3032
adamc@1050	3033 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	3034 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3035 uw_write_header(ctx, c);
adamc@462	3036 uw_write_header(ctx, "=");
adamc@462	3037 uw_write_header(ctx, v);
adamc@466	3038 uw_write_header(ctx, "; path=");
adamc@466	3039 uw_write_header(ctx, prefix);
adamc@1050	3040 if (expires) {
adamc@1050	3041 char formatted[30];
adam@1392	3042 struct tm tm = {};
adam@1392	3043 tm.tm_isdst = -1;
adamc@1050	3044
adam@1365	3045 gmtime_r(&expires->seconds, &tm);
adamc@1050	3046
adamc@1050	3047 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3048
adamc@1050	3049 uw_write_header(ctx, "; expires=");
adamc@1050	3050 uw_write_header(ctx, formatted);
adamc@1050	3051 }
adamc@1050	3052 if (secure)
adamc@1050	3053 uw_write_header(ctx, "; secure");
adamc@462	3054 uw_write_header(ctx, "\r\n");
adamc@462	3055
adamc@462	3056 return uw_unit_v;
adamc@462	3057 }
adamc@667	3058
adamc@1050	3059 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3060 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3061 uw_write_header(ctx, c);
adamc@1050	3062 uw_write_header(ctx, "=; path=");
adamc@1050	3063 uw_write_header(ctx, prefix);
adamc@1052	3064 uw_write_header(ctx, "; " THE_PAST "\r\n");
adamc@1050	3065
adamc@1050	3066 return uw_unit_v;
adamc@1050	3067 }
adamc@1050	3068
adamc@1113	3069 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3070
adamc@682	3071 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3072 unsigned i;
adamc@682	3073 delta *d;
adamc@671	3074
adamc@682	3075 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3076 if (ctx->deltas[i].client == client)
adamc@682	3077 return &ctx->deltas[i];
adamc@671	3078
adamc@682	3079 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3080 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3081 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3082
adamc@682	3083 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3084 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3085 }
adamc@671	3086
adamc@682	3087 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3088 d->client = client;
adam@1369	3089 uw_buffer_reset(&d->msgs);
adamc@682	3090 return d;
adamc@671	3091 }
adamc@671	3092
adamc@668	3093 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3094 if (ctx->client == NULL)
adamc@682	3095 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3096
adamc@682	3097 return new_channel(ctx->client);
adamc@668	3098 }
adamc@668	3099
adamc@668	3100 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3101 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3102 size_t len;
adamc@682	3103 int preLen;
adamc@682	3104 char pre[INTS_MAX + 2];
adamc@668	3105
adamc@682	3106 len = strlen(msg);
adamc@682	3107
adamc@682	3108 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3109
adam@1369	3110 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3111 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3112 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3113
adamc@671	3114 return uw_unit_v;
adamc@668	3115 }
adamc@671	3116
adam@1327	3117 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3118 int i;
adamc@1131	3119 cleanup *cl;
adamc@1131	3120
adamc@1131	3121 if (ctx->client)
adamc@1131	3122 release_client(ctx->client);
adamc@1131	3123
adamc@1131	3124 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3125 cl->func(cl->arg);
adamc@1131	3126
adamc@1131	3127 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3128
adamc@1131	3129 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3130 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3131 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3132
adamc@1131	3133 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3134 if (ctx->transactionals[i].free)
adam@1327	3135 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3136
adamc@1144	3137 return ctx->app ? ctx->app->db_rollback(ctx) : 0;
adamc@1131	3138 }
adamc@1131	3139
adamc@671	3140 void uw_commit(uw_context ctx) {
adamc@1104	3141 int i;
adamc@1104	3142
adamc@1131	3143 if (uw_has_error(ctx)) {
adam@1327	3144 uw_rollback(ctx, 0);
adamc@1131	3145 return;
adamc@1131	3146 }
adamc@1131	3147
adamc@1104	3148 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3149 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3150 if (ctx->transactionals[i].commit) {
adamc@1083	3151 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3152 if (uw_has_error(ctx)) {
adam@1327	3153 uw_rollback(ctx, 0);
adamc@1131	3154 return;
adamc@1131	3155 }
adamc@1131	3156 }
adamc@771	3157
adamc@1104	3158 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3159 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3160 if (ctx->transactionals[i].commit) {
adamc@1083	3161 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3162 if (uw_has_error(ctx)) {
adam@1327	3163 uw_rollback(ctx, 0);
adamc@1131	3164 return;
adamc@1131	3165 }
adamc@1131	3166 }
adamc@1131	3167
adamc@1131	3168 if (ctx->app->db_commit(ctx)) {
adamc@1131	3169 uw_set_error_message(ctx, "Error running SQL COMMIT");
adamc@1131	3170 return;
adamc@1131	3171 }
adamc@682	3172
adamc@682	3173 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3174 delta *d = &ctx->deltas[i];
adamc@682	3175 client *c = find_client(d->client);
adamc@682	3176
adamc@682	3177 assert (c != NULL && c->mode == USED);
adamc@682	3178
adam@1447	3179 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3180 }
adamc@682	3181
adamc@682	3182 if (ctx->client)
adamc@685	3183 release_client(ctx->client);
adamc@771	3184
adamc@1104	3185 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3186 if (ctx->transactionals[i].free)
adam@1327	3187 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3188
adam@1413	3189 if (*ctx->page.front)
adam@1413	3190 uw_writec(ctx, 0);
adam@1413	3191
adamc@916	3192 // Splice script data into appropriate part of page
adamc@1065	3193 if (ctx->returning_indirectly \|\| ctx->script_header[0] == 0) {
adamc@995	3194 char *start = strstr(ctx->page.start, "<sc>");
adamc@995	3195 if (start) {
adam@1369	3196 memmove(start, start + 4, uw_buffer_used(&ctx->page) - (start - ctx->page.start) - 4);
adamc@995	3197 ctx->page.front -= 4;
adamc@995	3198 }
adam@1369	3199 } else if (uw_buffer_used(&ctx->script) == 0) {
adamc@916	3200 size_t len = strlen(ctx->script_header);
adamc@916	3201 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	3202 if (start) {
adam@1369	3203 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) - 4 + len);
adamc@917	3204 start = strstr(ctx->page.start, "<sc>");
adam@1369	3205 memmove(start + len, start + 4, uw_buffer_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	3206 ctx->page.front += len - 4;
adamc@916	3207 memcpy(start, ctx->script_header, len);
adamc@916	3208 }
adamc@916	3209 } else {
adam@1369	3210 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adamc@916	3211 size_t lenP = lenH + 40 + len;
adamc@916	3212 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	3213 if (start) {
adam@1369	3214 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) - 4 + lenP);
adamc@917	3215 start = strstr(ctx->page.start, "<sc>");
adam@1369	3216 memmove(start + lenP, start + 4, uw_buffer_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	3217 ctx->page.front += lenP - 4;
adamc@916	3218 memcpy(start, ctx->script_header, lenH);
adamc@916	3219 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916	3220 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916	3221 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916	3222 }
adamc@916	3223 }
adamc@671	3224 }
adamc@671	3225
adamc@683	3226
adamc@1113	3227 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3228
adamc@771	3229 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3230 uw_callback_with_retry free) {
adamc@771	3231 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3232 if (ctx->used_transactionals+1 > uw_transactionals_max)
adamc@1113	3233 uw_error(ctx, FATAL, "Exceeded limit on number of transactionals");
adamc@1084	3234 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3235 ++ctx->n_transactionals;
adamc@771	3236 }
adamc@771	3237
adamc@771	3238 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3239 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3240 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3241 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	3242 }
adamc@771	3243
adamc@683	3244
adamc@683	3245 // "Garbage collection"
adamc@683	3246
adamc@1121	3247 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3248 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3249
adamc@1121	3250 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3251 int r = setjmp(ctx->jmp_buf);
adamc@683	3252
adamc@1121	3253 if (r == 0)
adamc@1121	3254 uw_do_expunge(ctx, cli, data);
adamc@1121	3255 else
adamc@1121	3256 ctx->app->db_rollback(ctx);
adamc@1121	3257
adamc@1121	3258 uw_post_expunge(ctx, data);
adamc@683	3259
adamc@683	3260 return r;
adamc@683	3261 }
adamc@683	3262
adamc@683	3263 void uw_prune_clients(uw_context ctx) {
adamc@683	3264 client c, next, *prev = NULL;
adamc@683	3265 time_t cutoff;
adamc@683	3266
adamc@1094	3267 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3268
adamc@683	3269 pthread_mutex_lock(&clients_mutex);
adamc@683	3270
adamc@683	3271 for (c = clients_used; c; c = next) {
adamc@683	3272 next = c->next;
adamc@683	3273 pthread_mutex_lock(&c->lock);
adamc@685	3274 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3275 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3276 if (prev)
adamc@683	3277 prev->next = next;
adamc@683	3278 else
adamc@683	3279 clients_used = next;
adamc@684	3280 uw_reset(ctx);
adamc@683	3281 while (fk == UNLIMITED_RETRY) {
adamc@1121	3282 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3283 if (fk == UNLIMITED_RETRY)
adamc@684	3284 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3285 }
adamc@684	3286 if (fk == SUCCESS)
adamc@684	3287 free_client(c);
adamc@1121	3288 else
adamc@856	3289 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3290 }
adamc@683	3291 else
adamc@683	3292 prev = c;
adamc@683	3293 pthread_mutex_unlock(&c->lock);
adamc@683	3294 }
adamc@683	3295
adamc@683	3296 pthread_mutex_unlock(&clients_mutex);
adamc@683	3297 }
adamc@687	3298
adamc@687	3299 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3300 int r = setjmp(ctx->jmp_buf);
adamc@687	3301
adamc@687	3302 if (r == 0) {
adamc@1094	3303 if (ctx->app->db_begin(ctx))
adamc@687	3304 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@1094	3305 ctx->app->initializer(ctx);
adamc@1094	3306 if (ctx->app->db_commit(ctx))
adamc@687	3307 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3308 }
adamc@687	3309
adamc@687	3310 return r;
adamc@687	3311 }
adamc@717	3312
adamc@1065	3313 static int url_bad(uw_Basis_string s) {
adamc@1065	3314 for (; *s; ++s)
adamc@1153	3315 if (!isgraph((int)*s))
adamc@1065	3316 return 1;
adamc@1065	3317
adamc@1065	3318 return 0;
adamc@1065	3319 }
adamc@1065	3320
adamc@717	3321 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3322 if (url_bad(s))
adamc@1065	3323 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3324 if (ctx->app->check_url(s))
adamc@770	3325 return s;
adamc@770	3326 else
adamc@770	3327 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3328 }
adamc@734	3329
adamc@770	3330 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3331 if (url_bad(s))
adamc@1065	3332 return NULL;
adamc@1094	3333 if (ctx->app->check_url(s))
adamc@770	3334 return s;
adamc@770	3335 else
adamc@770	3336 return NULL;
adamc@770	3337 }
adamc@770	3338
adamc@770	3339 int mime_format(const char *s) {
adamc@770	3340 for (; *s; ++s)
adamc@1153	3341 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.')
adamc@770	3342 return 0;
adamc@770	3343
adamc@770	3344 return 1;
adamc@770	3345 }
adamc@770	3346
adamc@741	3347 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3348 if (!mime_format(s))
adamc@770	3349 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3350
adamc@1094	3351 if (ctx->app->check_mime(s))
adamc@770	3352 return s;
adamc@770	3353 else
adamc@770	3354 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3355 }
adamc@770	3356
adamc@770	3357 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3358 if (!mime_format(s))
adamc@770	3359 return NULL;
adamc@770	3360
adamc@1094	3361 if (ctx->app->check_mime(s))
adamc@770	3362 return s;
adamc@770	3363 else
adamc@770	3364 return NULL;
adamc@741	3365 }
adamc@741	3366
adamc@734	3367 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3368 return s ? s : "";
adamc@734	3369 }
adamc@734	3370
adamc@734	3371 extern int uw_hash_blocksize;
adamc@734	3372
adamc@734	3373 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3374 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3375 int i;
adamc@734	3376
adamc@734	3377 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3378 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3379
adamc@734	3380 return r;
adamc@734	3381 }
adamc@734	3382
adamc@734	3383 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@1094	3384 return ctx->app->cookie_sig(ctx);
adamc@734	3385 }
adamc@737	3386
adamc@737	3387 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3388 return f.name;
adamc@737	3389 }
adamc@737	3390
adamc@740	3391 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3392 return f.type;
adamc@740	3393 }
adamc@740	3394
adamc@745	3395 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3396 return b.size;
adamc@745	3397 }
adamc@745	3398
adamc@1119	3399 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3400 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3401
adamc@1119	3402 return b;
adamc@1119	3403 }
adamc@1119	3404
adamc@737	3405 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3406 return f.data;
adamc@737	3407 }
adamc@741	3408
adam@1347	3409 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3410 return pb.type;
adam@1347	3411 }
adam@1347	3412
adam@1347	3413 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3414 return pb.data;
adam@1347	3415 }
adam@1347	3416
adamc@741	3417 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3418 cleanup *cl;
adamc@741	3419 int len;
adamc@741	3420
adam@1451	3421 if (!ctx->allowed_to_return_indirectly)
adam@1451	3422 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3423
adamc@1065	3424 ctx->returning_indirectly = 1;
adam@1369	3425 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3426 uw_buffer_reset(&ctx->page);
adamc@741	3427
adamc@856	3428 uw_write_header(ctx, on_success);
adamc@856	3429 uw_write_header(ctx, "Content-Type: ");
adamc@741	3430 uw_write_header(ctx, mimeType);
adamc@741	3431 uw_write_header(ctx, "\r\nContent-Length: ");
adam@1369	3432 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3433 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3434 ctx->outHeaders.front += len;
adamc@1066	3435 uw_write_header(ctx, "\r\n");
adamc@741	3436
adam@1369	3437 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3438
adamc@741	3439 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3440 cl->func(cl->arg);
adamc@741	3441
adamc@741	3442 ctx->cleanup_front = ctx->cleanup;
adamc@741	3443
adamc@1065	3444 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3445 }
adamc@1065	3446
adamc@1065	3447 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3448 cleanup *cl;
adamc@1066	3449 char *s;
adamc@1065	3450
adam@1451	3451 if (!ctx->allowed_to_return_indirectly)
adam@1451	3452 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3453
adamc@1065	3454 ctx->returning_indirectly = 1;
adam@1369	3455 uw_buffer_reset(&ctx->page);
adam@1369	3456 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3457 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3458 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3459 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3460
adam@1409	3461 if (on_success[0])
adam@1409	3462 uw_write_header(ctx, on_redirect);
adam@1409	3463 else
adam@1409	3464 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3465 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3466 if (s) {
adamc@1066	3467 char *s2;
adam@1409	3468 if (s[0] == '\n') ++s;
adam@1409	3469 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3470 *s2 = 0;
adamc@1066	3471 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3472 uw_write_header(ctx, s);
adamc@1066	3473 uw_write_header(ctx, "\n");
adamc@1066	3474 }
adamc@1066	3475 }
adamc@1066	3476 }
adamc@1066	3477
adamc@1065	3478 uw_write_header(ctx, "Location: ");
adamc@1065	3479 uw_write_header(ctx, url);
adamc@1065	3480 uw_write_header(ctx, "\r\n\r\n");
adamc@1065	3481
adamc@1065	3482 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3483 cl->func(cl->arg);
adamc@1065	3484
adamc@1065	3485 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3486
adamc@1065	3487 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3488 }
adamc@874	3489
adamc@874	3490 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adamc@874	3491 uw_Basis_string r = uw_malloc(ctx, strlen(s) + 1);
adamc@874	3492
adamc@874	3493 for (; *s; ++s) {
adamc@874	3494 if (s[0] == '\'') {
adamc@874	3495 *r++ = '\'';
adamc@874	3496 for (++s; *s; ++s) {
adamc@874	3497 if (s[0] == '\'') {
adamc@874	3498 *r++ = '\'';
adamc@874	3499 break;
adamc@874	3500 } else if (s[0] == '\\') {
adamc@874	3501 if (s[1] == '\\') {
adamc@874	3502 *r++ = '\\';
adamc@874	3503 *r++ = '\\';
adamc@874	3504 ++s;
adamc@874	3505 } else if (s[1] == '\'') {
adamc@874	3506 *r++ = '\\';
adamc@874	3507 *r++ = '\'';
adamc@874	3508 ++s;
adamc@874	3509 } else
adamc@874	3510 *r++ = '\'';
adamc@874	3511 } else
adamc@874	3512 *r++ = s[0];
adamc@874	3513 }
adamc@874	3514 if (*s == 0) break;
adamc@874	3515 } else if (s[0] == 'T' && s[1] == '.')
adamc@874	3516 ++s;
adamc@874	3517 else
adamc@874	3518 *r++ = s[0];
adamc@874	3519 }
adamc@874	3520
adamc@874	3521 return r;
adamc@874	3522 }
adamc@874	3523
adamc@922	3524 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3525 va_list ap;
adamc@922	3526 size_t len = 1;
adamc@922	3527 char s, r, *s2;
adamc@922	3528
adamc@922	3529 va_start(ap, ctx);
adamc@922	3530 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3531 len += strlen(s);
adamc@922	3532 va_end(ap);
adamc@922	3533
adamc@922	3534 r = uw_malloc(ctx, len);
adamc@922	3535 va_start(ap, ctx);
adamc@922	3536 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3537 while (*s)
adamc@922	3538 s2++ = s++;
adamc@922	3539 va_end(ap);
adamc@922	3540 *s2 = 0;
adamc@922	3541
adamc@922	3542 return r;
adamc@922	3543 }
adamc@1006	3544
adam@1365	3545 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	3546
adamc@1006	3547 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	3548 uw_Basis_time r = { time(NULL) };
adam@1365	3549 return r;
adamc@1006	3550 }
adamc@1061	3551
adam@1369	3552 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	3553 tm.seconds += n;
adam@1365	3554 return tm;
adamc@1138	3555 }
adamc@1138	3556
adamc@1061	3557 void uw_get_global(uw_context ctx, char name) {
adamc@1061	3558 int i;
adamc@1061	3559
adamc@1061	3560 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3561 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	3562 return ctx->globals[i].data;
adamc@1061	3563
adamc@1061	3564 return NULL;
adamc@1061	3565 }
adamc@1061	3566
adamc@1113	3567 size_t uw_globals_max = SIZE_MAX;
adamc@1113	3568
adamc@1061	3569 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	3570 int i;
adamc@1061	3571
adamc@1061	3572 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3573 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	3574 if (ctx->globals[i].free)
adamc@1061	3575 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	3576 ctx->globals[i].data = data;
adamc@1061	3577 ctx->globals[i].free = free;
adamc@1061	3578 return;
adamc@1061	3579 }
adamc@1089	3580
adamc@1113	3581 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	3582 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	3583
adamc@1061	3584 ++ctx->n_globals;
adamc@1061	3585 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	3586 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	3587 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	3588 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	3589 }
adamc@1061	3590
adamc@1061	3591 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	3592 return !!isalnum((int)c);
adamc@1061	3593 }
adamc@1061	3594
adamc@1061	3595 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	3596 return !!isalpha((int)c);
adamc@1061	3597 }
adamc@1061	3598
adamc@1061	3599 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	3600 return !!isblank((int)c);
adamc@1061	3601 }
adamc@1061	3602
adamc@1061	3603 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	3604 return !!iscntrl((int)c);
adamc@1061	3605 }
adamc@1061	3606
adamc@1061	3607 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3608 return !!isdigit((int)c);
adamc@1061	3609 }
adamc@1061	3610
adamc@1061	3611 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	3612 return !!isgraph((int)c);
adamc@1061	3613 }
adamc@1061	3614
adamc@1061	3615 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3616 return !!islower((int)c);
adamc@1061	3617 }
adamc@1061	3618
adamc@1061	3619 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	3620 return !!isprint((int)c);
adamc@1061	3621 }
adamc@1061	3622
adamc@1061	3623 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	3624 return !!ispunct((int)c);
adamc@1061	3625 }
adamc@1061	3626
adamc@1061	3627 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	3628 return !!isspace((int)c);
adamc@1061	3629 }
adamc@1063	3630
adamc@1061	3631 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3632 return !!isupper((int)c);
adamc@1061	3633 }
adamc@1061	3634
adamc@1061	3635 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3636 return !!isxdigit((int)c);
adamc@1061	3637 }
adamc@1061	3638
adamc@1061	3639 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3640 return tolower((int)c);
adamc@1061	3641 }
adamc@1061	3642
adamc@1061	3643 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3644 return toupper((int)c);
adamc@1061	3645 }
adamc@1066	3646
adamc@1128	3647 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	3648 return (unsigned char)c;
adamc@1128	3649 }
adamc@1128	3650
adamc@1128	3651 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	3652 return n;
adamc@1128	3653 }
adamc@1128	3654
adamc@1066	3655 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	3656 return ctx->current_url;
adamc@1066	3657 }
adamc@1066	3658
adamc@1066	3659 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	3660 ctx->current_url = s;
adamc@1066	3661 }
adamc@1114	3662
adamc@1114	3663 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	3664 ctx->deadline = n;
adamc@1114	3665 }
adamc@1114	3666
adamc@1114	3667 void uw_check_deadline(uw_context ctx) {
adamc@1114	3668 if (uw_time > ctx->deadline)
adamc@1114	3669 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	3670 }
adamc@1115	3671
adamc@1115	3672 size_t uw_database_max = SIZE_MAX;
adamc@1120	3673
adam@1389	3674 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@1389	3675 fprintf(stderr, "%s\n", s);
adam@1389	3676 return 0;
adam@1389	3677 }
adam@1389	3678
adamc@1120	3679 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
adam@1334	3680 if (ctx->log_debug)
adam@1334	3681 ctx->log_debug(ctx->logger_data, "%s\n", s);
adam@1334	3682 else
adam@1334	3683 fprintf(stderr, "%s\n", s);
adamc@1120	3684 return uw_unit_v;
adamc@1120	3685 }
adamc@1250	3686
adamc@1250	3687 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adamc@1250	3688 uw_Basis_int n = abs(rand());
adamc@1250	3689 return n;
adamc@1250	3690 }
adam@1347	3691
adam@1347	3692 void uw_noPostBody(uw_context ctx) {
adam@1347	3693 ctx->hasPostBody = 0;
adam@1347	3694 }
adam@1347	3695
adam@1347	3696 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3697 ctx->hasPostBody = 1;
adam@1347	3698 ctx->postBody = pb;
adam@1347	3699 }
adam@1347	3700
adam@1347	3701 int uw_hasPostBody(uw_context ctx) {
adam@1347	3702 return ctx->hasPostBody;
adam@1347	3703 }
adam@1347	3704
adam@1386	3705 void uw_isPost(uw_context ctx) {
adam@1386	3706 ctx->isPost = 1;
adam@1386	3707 }
adam@1386	3708
adam@1386	3709 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	3710 return ctx->isPost;
adam@1386	3711 }
adam@1386	3712
adam@1370	3713 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	3714 ctx->queryString = s;
adam@1370	3715 }
adam@1370	3716
adam@1370	3717 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	3718 return ctx->queryString;
adam@1370	3719 }
adam@1370	3720
adam@1347	3721 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	3722 if (ctx->hasPostBody)
adam@1347	3723 return ctx->postBody;
adam@1347	3724 else
adam@1347	3725 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	3726 }
adam@1349	3727
adam@1349	3728 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	3729 int r = setjmp(ctx->jmp_buf);
adam@1349	3730
adam@1349	3731 if (r == 0) {
adam@1418	3732 if (ctx->app->db_begin(ctx))
adam@1418	3733 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1418	3734
adam@1349	3735 callback(ctx);
adam@1349	3736 }
adam@1349	3737
adam@1349	3738 return r;
adam@1349	3739 }
adam@1360	3740
adam@1360	3741 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	3742 char buf[14];
adam@1397	3743 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	3744 }
adam@1365	3745
adam@1365	3746 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	3747 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	3748 }
adam@1365	3749
adam@1365	3750 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	3751 return !!(t1.seconds < t2.seconds \|\| t1.microseconds < t2.microseconds);
adam@1365	3752 }
adam@1365	3753
adam@1365	3754 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	3755 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	3756 }
adam@1365	3757
adam@1372	3758 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	3759 struct tm stm = {};
adam@1375	3760 char *end = strchr(s, 0);
adam@1449	3761 stm.tm_isdst = -1;
adam@1375	3762
adam@1375	3763 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end) {
adam@1373	3764 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	3765
kkallio@1448	3766 r->seconds = timegm(&stm);
adam@1373	3767 r->microseconds = 0;
adam@1373	3768
adam@1373	3769 return r;
adam@1374	3770 }
adam@1374	3771 else
adam@1373	3772 return NULL;
adam@1372	3773 }
adam@1407	3774
adam@1407	3775 static const char begin_xhtml[] = "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" lang=\"en\">";
adam@1407	3776
adam@1407	3777 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	3778 int r = setjmp(ctx->jmp_buf);
adam@1407	3779
adam@1407	3780 if (ctx->app->on_error) {
adam@1407	3781 if (r == 0) {
adam@1407	3782 if (ctx->app->db_begin(ctx))
adam@1407	3783 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1407	3784
adam@1409	3785 uw_buffer_reset(&ctx->outHeaders);
adam@1409	3786 if (on_success[0])
adam@1409	3787 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	3788 else
adam@1409	3789 uw_write_header(ctx, "Status: ");
adam@1409	3790 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1407	3791 uw_write_header(ctx, "Content-type: text/html\r\n\r\n");
adam@1407	3792 uw_write(ctx, begin_xhtml);
adam@1407	3793 ctx->app->on_error(ctx, msg);
adam@1407	3794 uw_write(ctx, "</html>");
adam@1407	3795 }
adam@1407	3796
adam@1407	3797 return r;
adam@1407	3798 } else
adam@1407	3799 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	3800 }
adam@1451	3801
adam@1451	3802 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	3803 ctx->allowed_to_return_indirectly = 1;
adam@1451	3804 }

Mercurial > urweb

annotate src/c/urweb.c @ 1451:b6ce8ef0ea88