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

annotate src/c/urweb.c @ 1457:aa2398e58306

Escape less-than in JavaScript strings

author	Adam Chlipala <adam@chlipala.net>
date	Thu, 12 May 2011 17:14:13 -0400
parents	b6ce8ef0ea88
children	fb88d64abec8

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;
adam@1457	1383 case '<':
adam@1457	1384 strcpy(s2, "\\074");
adam@1457	1385 s2 += 4;
adam@1457	1386 break;
adamc@574	1387 default:
adam@1286	1388 if (isprint((int)c) \|\| c >= 128)
adamc@574	1389 *s2++ = c;
adamc@574	1390 else {
adam@1429	1391 sprintf(s2, "\\%03o", c);
adamc@574	1392 s2 += 4;
adamc@574	1393 }
adamc@574	1394 }
adamc@574	1395 }
adamc@574	1396
adamc@574	1397 strcpy(s2, "\"");
adamc@910	1398 ctx->heap.front = s2 + 2;
adamc@574	1399 return r;
adamc@574	1400 }
adamc@574	1401
adam@1286	1402 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1403 unsigned char c = c1;
adamc@1025	1404 char r, s2;
adamc@1025	1405
adam@1446	1406 uw_check_heap(ctx, 7);
adamc@1025	1407
adamc@1025	1408 r = s2 = ctx->heap.front;
adamc@1025	1409 *s2++ = '"';
adamc@1025	1410
adamc@1025	1411 switch (c) {
adamc@1025	1412 case '"':
adamc@1025	1413 strcpy(s2, "\\\"");
adamc@1025	1414 s2 += 2;
adamc@1025	1415 break;
adamc@1027	1416 case '\'':
adamc@1027	1417 strcpy(s2, "\\047");
adamc@1027	1418 s2 += 4;
adamc@1027	1419 break;
adamc@1025	1420 case '\\':
adamc@1025	1421 strcpy(s2, "\\\\");
adamc@1025	1422 s2 += 2;
adamc@1025	1423 break;
adam@1457	1424 case '<':
adam@1457	1425 strcpy(s2, "\\074");
adam@1457	1426 s2 += 4;
adam@1457	1427 break;
adamc@1025	1428 default:
adam@1286	1429 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1430 *s2++ = c;
adamc@1025	1431 else {
adam@1429	1432 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1433 s2 += 4;
adamc@1025	1434 }
adamc@1025	1435 }
adamc@1025	1436
adamc@1025	1437 strcpy(s2, "\"");
adamc@1025	1438 ctx->heap.front = s2 + 2;
adamc@1025	1439 return r;
adamc@1025	1440 }
adamc@1025	1441
adamc@574	1442 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1443 char r, s2;
adamc@574	1444
adam@1446	1445 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1446
adamc@666	1447 r = s2 = ctx->script.front;
adamc@574	1448 *s2++ = '"';
adamc@574	1449
adamc@574	1450 for (; *s; s++) {
adam@1286	1451 unsigned char c = *s;
adamc@574	1452
adamc@574	1453 switch (c) {
adamc@577	1454 case '\'':
adamc@1027	1455 strcpy(s2, "\\");
adamc@574	1456 s2 += 2;
adamc@574	1457 break;
adamc@574	1458 case '\\':
adamc@574	1459 strcpy(s2, "\\\\");
adamc@574	1460 s2 += 2;
adamc@574	1461 break;
adam@1457	1462 case '<':
adam@1457	1463 strcpy(s2, "\\074");
adam@1457	1464 s2 += 4;
adam@1457	1465 break;
adamc@574	1466 default:
adam@1286	1467 if (isprint((int)c) \|\| c >= 128)
adamc@574	1468 *s2++ = c;
adamc@574	1469 else {
adam@1429	1470 sprintf(s2, "\\%03o", c);
adamc@574	1471 s2 += 4;
adamc@574	1472 }
adamc@574	1473 }
adamc@574	1474 }
adamc@574	1475
adamc@574	1476 strcpy(s2, "\"");
adamc@666	1477 ctx->script.front = s2 + 1;
adamc@574	1478 return r;
adamc@574	1479 }
adamc@574	1480
adamc@682	1481 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1482 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1483 return "null";
adamc@682	1484 else {
adamc@682	1485 int len;
adamc@682	1486 char *r;
adamc@682	1487
adamc@682	1488 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1489 r = ctx->heap.front;
adamc@682	1490 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1491 ctx->heap.front += len+1;
adamc@682	1492 return r;
adamc@682	1493 }
adamc@682	1494 }
adamc@682	1495
adam@1446	1496 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1497 int len;
adamc@577	1498 size_t s_len = strlen(s);
adamc@562	1499
adam@1446	1500 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1501 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1502 ctx->script.front += len;
adamc@666	1503 strcpy(ctx->script.front, s);
adamc@666	1504 ctx->script.front += s_len;
adamc@970	1505 strcpy(ctx->script.front, "));");
adamc@972	1506 ctx->script.front += 3;
adamc@562	1507
adam@1446	1508 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1509 return r;
adam@1446	1510 }
adam@1446	1511
adam@1446	1512 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1513 int len;
adamc@577	1514 size_t s_len = strlen(s);
adamc@577	1515
adam@1446	1516 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1517 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1518 ctx->script.front += len;
adamc@666	1519 strcpy(ctx->script.front, s);
adamc@666	1520 ctx->script.front += s_len;
adamc@970	1521 strcpy(ctx->script.front, "));");
adamc@972	1522 ctx->script.front += 3;
adamc@577	1523
adamc@577	1524 return uw_unit_v;
adamc@577	1525 }
adamc@577	1526
adamc@311	1527 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1528 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1529 }
adamc@117	1530
adamc@311	1531 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1532 *(ctx->page.front)++ = c;
adam@1413	1533 *ctx->page.front = 0;
adamc@117	1534 }
adamc@117	1535
adamc@311	1536 void uw_writec(uw_context ctx, char c) {
adam@1413	1537 uw_check(ctx, 2);
adamc@311	1538 uw_writec_unsafe(ctx, c);
adamc@117	1539 }
adamc@117	1540
adamc@311	1541 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1542 int len = strlen(s);
adamc@666	1543 memcpy(ctx->page.front, s, len);
adamc@666	1544 ctx->page.front += len;
adamc@117	1545 }
adamc@117	1546
adamc@311	1547 void uw_write(uw_context ctx, const char* s) {
adamc@311	1548 uw_check(ctx, strlen(s) + 1);
adamc@311	1549 uw_write_unsafe(ctx, s);
adamc@666	1550 *ctx->page.front = 0;
adamc@102	1551 }
adamc@106	1552
adamc@311	1553 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1554 char *result;
adamc@136	1555 int len;
adamc@311	1556 uw_check_heap(ctx, INTS_MAX);
adamc@666	1557 result = ctx->heap.front;
adamc@276	1558 sprintf(result, "%lld%n", n, &len);
adamc@666	1559 ctx->heap.front += len+1;
adamc@136	1560 return result;
adamc@106	1561 }
adamc@106	1562
adamc@311	1563 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1564 char *result;
adamc@136	1565 int len;
adamc@311	1566 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1567 result = ctx->heap.front;
adamc@136	1568 sprintf(result, "%g%n", n, &len);
adamc@666	1569 ctx->heap.front += len+1;
adamc@136	1570 return result;
adamc@106	1571 }
adamc@106	1572
adamc@311	1573 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1574 int len = strlen(s);
adamc@136	1575 char result, p;
adamc@311	1576 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1577
adamc@666	1578 result = p = ctx->heap.front;
adamc@136	1579
adamc@136	1580 for (; *s; s++) {
adamc@1054	1581 unsigned char c = *s;
adamc@136	1582
adamc@136	1583 if (c == '"') {
adamc@136	1584 strcpy(p, """);
adamc@136	1585 p += 6;
adamc@136	1586 } else if (c == '&') {
adamc@136	1587 strcpy(p, "&");
adamc@136	1588 p += 5;
adamc@136	1589 }
adamc@1059	1590 else
adamc@136	1591 *p++ = c;
adamc@136	1592 }
adamc@136	1593
adamc@137	1594 *p++ = 0;
adamc@666	1595 ctx->heap.front = p;
adamc@136	1596 return result;
adamc@106	1597 }
adamc@106	1598
adamc@1011	1599 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1600 char result, p;
adamc@1011	1601 uw_check_heap(ctx, 7);
adamc@1011	1602
adamc@1011	1603 result = p = ctx->heap.front;
adamc@1011	1604
adamc@1011	1605 if (c == '"') {
adamc@1011	1606 strcpy(p, """);
adamc@1011	1607 p += 6;
adamc@1011	1608 } else if (c == '&') {
adamc@1011	1609 strcpy(p, "&");
adamc@1011	1610 p += 5;
adamc@1011	1611 }
adamc@1059	1612 else
adamc@1011	1613 *p++ = c;
adamc@1011	1614
adamc@1011	1615 *p++ = 0;
adamc@1011	1616 ctx->heap.front = p;
adamc@1011	1617 return result;
adamc@1011	1618 }
adamc@1011	1619
adamc@721	1620 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1621 return s;
adamc@721	1622 }
adamc@721	1623
adamc@311	1624 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1625 int len;
adamc@117	1626
adamc@666	1627 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1628 ctx->page.front += len;
adamc@106	1629 }
adamc@106	1630
adamc@428	1631 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1632 uw_check(ctx, INTS_MAX);
adamc@311	1633 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1634
adamc@428	1635 return uw_unit_v;
adamc@106	1636 }
adamc@106	1637
adamc@428	1638 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1639 int len;
adamc@117	1640
adamc@311	1641 uw_check(ctx, FLOATS_MAX);
adamc@666	1642 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1643 ctx->page.front += len;
adamc@428	1644
adamc@428	1645 return uw_unit_v;
adamc@117	1646 }
adamc@117	1647
adamc@428	1648 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1649 uw_check(ctx, strlen(s) * 6);
adamc@117	1650
adamc@106	1651 for (; *s; s++) {
adamc@1054	1652 unsigned char c = *s;
adamc@106	1653
adamc@106	1654 if (c == '"')
adamc@311	1655 uw_write_unsafe(ctx, """);
adamc@136	1656 else if (c == '&')
adamc@311	1657 uw_write_unsafe(ctx, "&");
adamc@1059	1658 else
adamc@311	1659 uw_writec_unsafe(ctx, c);
adamc@106	1660 }
adamc@428	1661
adamc@428	1662 return uw_unit_v;
adamc@106	1663 }
adamc@120	1664
adamc@1011	1665 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1666 uw_check(ctx, 6);
adamc@1011	1667
adamc@1011	1668 if (c == '"')
adamc@1011	1669 uw_write_unsafe(ctx, """);
adamc@1011	1670 else if (c == '&')
adamc@1011	1671 uw_write_unsafe(ctx, "&");
adamc@1059	1672 else
adamc@1011	1673 uw_writec_unsafe(ctx, c);
adamc@1011	1674
adamc@1011	1675 return uw_unit_v;
adamc@1011	1676 }
adamc@1011	1677
adamc@120	1678
adamc@311	1679 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1680 int len;
adamc@137	1681 char *r;
adamc@137	1682
adamc@311	1683 uw_check_heap(ctx, INTS_MAX);
adamc@666	1684 r = ctx->heap.front;
adamc@276	1685 sprintf(r, "%lld%n", n, &len);
adamc@666	1686 ctx->heap.front += len+1;
adamc@137	1687 return r;
adamc@120	1688 }
adamc@120	1689
adamc@682	1690 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1691 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1692 return "";
adamc@682	1693 else {
adamc@682	1694 int len;
adamc@682	1695 char *r;
adamc@679	1696
adamc@682	1697 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1698 r = ctx->heap.front;
adamc@682	1699 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1700 ctx->heap.front += len+1;
adamc@682	1701 return r;
adamc@682	1702 }
adamc@679	1703 }
adamc@679	1704
adamc@311	1705 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1706 int len;
adamc@137	1707 char *r;
adamc@137	1708
adamc@311	1709 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1710 r = ctx->heap.front;
adamc@137	1711 sprintf(r, "%g%n", n, &len);
adamc@666	1712 ctx->heap.front += len+1;
adamc@137	1713 return r;
adamc@120	1714 }
adamc@120	1715
adamc@311	1716 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1717 char r, p;
adamc@137	1718
adamc@925	1719 if (s[0] == '\0')
adamc@925	1720 return "_";
adamc@925	1721
adamc@925	1722 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1723
adamc@925	1724 r = p = ctx->heap.front;
adamc@925	1725 if (s[0] == '_')
adamc@925	1726 *p++ = '_';
adamc@925	1727
adamc@925	1728 for (; *s; s++) {
adamc@1087	1729 unsigned char c = *s;
adamc@137	1730
adamc@137	1731 if (c == ' ')
adamc@137	1732 *p++ = '+';
adamc@137	1733 else if (isalnum(c))
adamc@137	1734 *p++ = c;
adamc@137	1735 else {
adamc@1259	1736 sprintf(p, ".%02X", c);
adamc@137	1737 p += 3;
adamc@137	1738 }
adamc@137	1739 }
adamc@137	1740
adamc@137	1741 *p++ = 0;
adamc@666	1742 ctx->heap.front = p;
adamc@137	1743 return r;
adamc@120	1744 }
adamc@120	1745
adamc@311	1746 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1747 if (b == uw_Basis_False)
adamc@186	1748 return "0";
adamc@186	1749 else
adamc@186	1750 return "1";
adamc@186	1751 }
adamc@186	1752
adamc@311	1753 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1754 int len;
adamc@120	1755
adamc@666	1756 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1757 ctx->page.front += len;
adamc@120	1758 }
adamc@120	1759
adamc@428	1760 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1761 uw_check(ctx, INTS_MAX);
adamc@311	1762 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1763
adamc@428	1764 return uw_unit_v;
adamc@120	1765 }
adamc@120	1766
adamc@682	1767 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1768 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1769 int len;
adamc@682	1770
adamc@682	1771 uw_check(ctx, INTS_MAX + 1);
adamc@682	1772 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1773 ctx->page.front += len;
adamc@682	1774 }
adamc@682	1775
adamc@679	1776 return uw_unit_v;
adamc@679	1777 }
adamc@679	1778
adamc@428	1779 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1780 int len;
adamc@120	1781
adamc@311	1782 uw_check(ctx, FLOATS_MAX);
adamc@666	1783 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1784 ctx->page.front += len;
adamc@428	1785
adamc@428	1786 return uw_unit_v;
adamc@120	1787 }
adamc@120	1788
adamc@488	1789 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1790 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1791 }
adamc@488	1792
adam@1404	1793 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1794 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1795 }
adam@1404	1796
adamc@428	1797 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1798 if (s[0] == '\0') {
adamc@925	1799 uw_check(ctx, 1);
adamc@925	1800 uw_writec_unsafe(ctx, '_');
adamc@925	1801 return uw_unit_v;
adamc@925	1802 }
adamc@925	1803
adamc@925	1804 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1805
adamc@925	1806 if (s[0] == '_')
adamc@925	1807 uw_writec_unsafe(ctx, '_');
adamc@120	1808
adamc@120	1809 for (; *s; s++) {
adamc@1087	1810 unsigned char c = *s;
adamc@120	1811
adamc@120	1812 if (c == ' ')
adamc@311	1813 uw_writec_unsafe(ctx, '+');
adamc@120	1814 else if (isalnum(c))
adamc@311	1815 uw_writec_unsafe(ctx, c);
adamc@120	1816 else {
adamc@1259	1817 sprintf(ctx->page.front, ".%02X", c);
adamc@666	1818 ctx->page.front += 3;
adamc@120	1819 }
adamc@120	1820 }
adamc@428	1821
adamc@428	1822 return uw_unit_v;
adamc@120	1823 }
adamc@120	1824
adamc@428	1825 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1826 if (b == uw_Basis_False)
adamc@311	1827 uw_writec(ctx, '0');
adamc@186	1828 else
adamc@311	1829 uw_writec(ctx, '1');
adamc@428	1830
adamc@428	1831 return uw_unit_v;
adamc@186	1832 }
adamc@186	1833
adamc@120	1834
adamc@311	1835 static char uw_unurlify_advance(char s) {
adamc@144	1836 char *new_s = strchr(s, '/');
adamc@120	1837
adamc@120	1838 if (new_s)
adamc@120	1839 *new_s++ = 0;
adamc@120	1840 else
adamc@144	1841 new_s = strchr(s, 0);
adamc@144	1842
adamc@144	1843 return new_s;
adamc@144	1844 }
adamc@144	1845
adamc@311	1846 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1847 char new_s = uw_unurlify_advance(s);
adamc@311	1848 uw_Basis_int r;
adamc@120	1849
adamc@276	1850 r = atoll(*s);
adamc@120	1851 *s = new_s;
adamc@120	1852 return r;
adamc@120	1853 }
adamc@120	1854
adamc@311	1855 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1856 char new_s = uw_unurlify_advance(s);
adamc@311	1857 uw_Basis_float r;
adamc@120	1858
adamc@120	1859 r = atof(*s);
adamc@120	1860 *s = new_s;
adamc@120	1861 return r;
adamc@120	1862 }
adamc@120	1863
adamc@488	1864 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	1865 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	1866 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	1867 return r;
adamc@488	1868 }
adamc@488	1869
adamc@1023	1870 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1871 char s1, s2 = s;
adamc@144	1872 int n;
adamc@136	1873
adamc@1023	1874 if (!fromClient) {
adamc@1023	1875 if (*s2 == '_')
adamc@1023	1876 ++s2;
adamc@1259	1877 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1878 s2 += 3;
adamc@1023	1879 }
adamc@925	1880
adamc@927	1881 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	1882 unsigned char c = *s2;
adamc@136	1883
adamc@136	1884 switch (c) {
adamc@136	1885 case '+':
adamc@136	1886 *s1 = ' ';
adamc@136	1887 break;
adamc@136	1888 case '%':
adamc@169	1889 if (s2[1] == 0)
adamc@311	1890 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1891 if (s2[2] == 0)
adamc@311	1892 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1893 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	1894 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	1895 *s1 = n;
adamc@136	1896 s2 += 2;
adamc@136	1897 break;
adamc@1259	1898 case '.':
adamc@1259	1899 if (!fromClient) {
adamc@1259	1900 if (s2[1] == 0)
adamc@1259	1901 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	1902 if (s2[2] == 0)
adamc@1259	1903 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	1904 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	1905 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	1906 *s1 = n;
adamc@1259	1907 s2 += 2;
adamc@1259	1908 break;
adamc@1259	1909 }
adamc@136	1910 default:
adamc@136	1911 *s1 = c;
adamc@136	1912 }
adamc@136	1913 }
adamc@136	1914 *s1++ = 0;
adamc@144	1915 return s1;
adamc@144	1916 }
adamc@144	1917
adamc@311	1918 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	1919 char new_s = uw_unurlify_advance(s);
adamc@311	1920 uw_Basis_bool r;
adamc@186	1921
adamc@186	1922 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	1923 r = uw_Basis_False;
adamc@186	1924 else
adamc@311	1925 r = uw_Basis_True;
adamc@186	1926
adamc@186	1927 *s = new_s;
adamc@186	1928 return r;
adamc@186	1929 }
adamc@186	1930
adamc@311	1931 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	1932 char new_s = uw_unurlify_advance(s);
adamc@1134	1933 char *r;
adamc@1134	1934 int len;
adamc@144	1935
adamc@200	1936 len = strlen(*s);
adamc@311	1937 uw_check_heap(ctx, len + 1);
adamc@144	1938
adamc@666	1939 r = ctx->heap.front;
adamc@1023	1940 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	1941 *s = new_s;
adamc@1023	1942 return r;
adamc@1023	1943 }
adamc@1023	1944
adamc@1109	1945 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	1946 s = uw_unurlify_advance(s);
adamc@1109	1947 return uw_unit_v;
adamc@1109	1948 }
adamc@1109	1949
adamc@1023	1950 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	1951 char new_s = uw_unurlify_advance(s);
adamc@1134	1952 char *r;
adamc@1134	1953 int len;
adamc@1023	1954
adamc@1023	1955 len = strlen(*s);
adamc@1023	1956 uw_check_heap(ctx, len + 1);
adamc@1023	1957
adamc@1023	1958 r = ctx->heap.front;
adamc@1023	1959 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	1960 *s = new_s;
adamc@136	1961 return r;
adamc@120	1962 }
adamc@135	1963
adamc@135	1964
adamc@311	1965 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	1966 int len;
adamc@286	1967 char *r;
adamc@286	1968
adamc@311	1969 uw_check_heap(ctx, INTS_MAX);
adamc@666	1970 r = ctx->heap.front;
adamc@286	1971 sprintf(r, "%lld%n", n, &len);
adamc@666	1972 ctx->heap.front += len+1;
adamc@286	1973 return r;
adamc@286	1974 }
adamc@286	1975
adamc@428	1976 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	1977 int len;
adamc@286	1978
adamc@311	1979 uw_check(ctx, INTS_MAX);
adamc@666	1980 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1981 ctx->page.front += len;
adamc@428	1982
adamc@428	1983 return uw_unit_v;
adamc@286	1984 }
adamc@286	1985
adam@1358	1986 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	1987 unsigned int n = ch;
adam@1358	1988 int len;
adam@1358	1989 char *r;
adam@1358	1990
adam@1358	1991 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	1992 r = ctx->heap.front;
adam@1358	1993 sprintf(r, "&#%u;%n", n, &len);
adam@1358	1994 ctx->heap.front += len+1;
adam@1358	1995 return r;
adam@1358	1996 }
adam@1358	1997
adam@1358	1998 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	1999 unsigned int n = ch;
adam@1358	2000 int len;
adam@1358	2001
adam@1358	2002 uw_check(ctx, INTS_MAX+3);
adam@1358	2003 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2004 ctx->page.front += len;
adam@1358	2005 return uw_unit_v;
adam@1358	2006 }
adam@1358	2007
adamc@311	2008 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2009 int len;
adamc@286	2010 char *r;
adamc@286	2011
adamc@311	2012 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2013 r = ctx->heap.front;
adamc@286	2014 sprintf(r, "%g%n", n, &len);
adamc@666	2015 ctx->heap.front += len+1;
adamc@286	2016 return r;
adamc@286	2017 }
adamc@286	2018
adamc@428	2019 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2020 int len;
adamc@286	2021
adamc@311	2022 uw_check(ctx, FLOATS_MAX);
adamc@666	2023 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2024 ctx->page.front += len;
adamc@428	2025
adamc@428	2026 return uw_unit_v;
adamc@286	2027 }
adamc@286	2028
adam@1365	2029 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2030 int len;
adam@1360	2031 char *r;
adam@1360	2032
adam@1360	2033 uw_check_heap(ctx, INTS_MAX);
adam@1360	2034 r = ctx->heap.front;
adamc@1377	2035 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2036 ctx->heap.front += len+1;
adam@1360	2037 return r;
adam@1360	2038 }
adam@1360	2039
adam@1365	2040 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2041 int len;
adam@1360	2042
adam@1360	2043 uw_check(ctx, INTS_MAX);
adam@1360	2044 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2045 ctx->page.front += len;
adam@1360	2046
adam@1360	2047 return uw_unit_v;
adam@1360	2048 }
adam@1360	2049
adam@1444	2050 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2051 char r, s2;
adamc@137	2052
adamc@311	2053 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2054
adamc@666	2055 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2056 unsigned char c = *s;
adamc@137	2057
adamc@137	2058 switch (c) {
adamc@137	2059 case '<':
adamc@137	2060 strcpy(s2, "<");
adamc@137	2061 s2 += 4;
adamc@137	2062 break;
adamc@137	2063 case '&':
adamc@137	2064 strcpy(s2, "&");
adamc@137	2065 s2 += 5;
adamc@137	2066 break;
adamc@137	2067 default:
adamc@1059	2068 *s2++ = c;
adamc@137	2069 }
adamc@137	2070 }
adamc@137	2071
adamc@137	2072 *s2++ = 0;
adamc@666	2073 ctx->heap.front = s2;
adamc@137	2074 return r;
adamc@135	2075 }
adamc@135	2076
adamc@428	2077 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2078 uw_check(ctx, strlen(s) * 6);
adamc@135	2079
adamc@135	2080 for (; *s; s++) {
adamc@1054	2081 unsigned char c = *s;
adamc@135	2082
adamc@135	2083 switch (c) {
adamc@135	2084 case '<':
adamc@311	2085 uw_write_unsafe(ctx, "<");
adamc@135	2086 break;
adamc@135	2087 case '&':
adamc@311	2088 uw_write_unsafe(ctx, "&");
adamc@135	2089 break;
adamc@135	2090 default:
adamc@1059	2091 uw_writec_unsafe(ctx, c);
adamc@135	2092 }
adamc@135	2093 }
adamc@428	2094
adamc@428	2095 return uw_unit_v;
adamc@135	2096 }
adamc@180	2097
adamc@311	2098 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2099 if (b == uw_Basis_False)
adamc@286	2100 return "False";
adamc@286	2101 else
adamc@286	2102 return "True";
adamc@286	2103 }
adamc@286	2104
adamc@428	2105 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2106 if (b == uw_Basis_False) {
adamc@311	2107 uw_check(ctx, 6);
adamc@666	2108 strcpy(ctx->page.front, "False");
adamc@666	2109 ctx->page.front += 5;
adamc@286	2110 } else {
adamc@311	2111 uw_check(ctx, 5);
adamc@666	2112 strcpy(ctx->page.front, "True");
adamc@666	2113 ctx->page.front += 4;
adamc@286	2114 }
adamc@428	2115
adamc@428	2116 return uw_unit_v;
adamc@286	2117 }
adamc@286	2118
adamc@436	2119 #define TIME_FMT "%x %X"
adamc@438	2120 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436	2121
adamc@436	2122 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436	2123 size_t len;
adamc@436	2124 char *r;
adam@1392	2125 struct tm stm = {};
adam@1392	2126 stm.tm_isdst = -1;
adamc@436	2127
adam@1365	2128 if (localtime_r(&t.seconds, &stm)) {
adamc@436	2129 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2130 r = ctx->heap.front;
adamc@436	2131 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2132 ctx->heap.front += len+1;
adamc@436	2133 return r;
adamc@436	2134 } else
adamc@436	2135 return "<i>Invalid time</i>";
adamc@436	2136 }
adamc@436	2137
adamc@436	2138 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436	2139 size_t len;
adamc@436	2140 char *r;
adam@1392	2141 struct tm stm = {};
adam@1392	2142 stm.tm_isdst = -1;
adamc@436	2143
adam@1365	2144 if (localtime_r(&t.seconds, &stm)) {
adamc@436	2145 uw_check(ctx, TIMES_MAX);
adamc@666	2146 r = ctx->page.front;
adamc@436	2147 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2148 ctx->page.front += len;
adamc@436	2149 } else {
adamc@436	2150 uw_check(ctx, 20);
adamc@666	2151 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666	2152 ctx->page.front += 19;
adamc@436	2153 }
adamc@436	2154
adamc@436	2155 return uw_unit_v;
adamc@436	2156 }
adamc@436	2157
adam@1446	2158 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2159 int len;
adam@1446	2160 char *r;
adam@1446	2161
adam@1446	2162 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2163 r = ctx->heap.front;
adam@1446	2164 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2165 ctx->heap.front += len+1;
adam@1446	2166 return r;
adam@1446	2167 }
adam@1446	2168
adam@1446	2169 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2170 int len;
adam@1446	2171
adam@1446	2172 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2173 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2174 ctx->page.front += len;
adam@1446	2175
adam@1446	2176 return uw_unit_v;
adam@1446	2177 }
adam@1446	2178
adamc@821	2179 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2180 while (n >= 0) {
adam@1388	2181 if (*s == 0)
adam@1388	2182 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2183
adam@1388	2184 if (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 strsub bound");
adamc@821	2192 }
adamc@821	2193
adamc@821	2194 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2195 while (n >= 0) {
adam@1388	2196 if (*s == 0 \|\| n == 0)
adam@1388	2197 return s;
adam@1388	2198
adam@1388	2199 --n;
adam@1388	2200 ++s;
adam@1388	2201 }
adam@1388	2202
adam@1388	2203 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2204 }
adamc@821	2205
adamc@828	2206 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2207 return strlen(s);
adamc@828	2208 }
adamc@828	2209
adam@1388	2210 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2211 while (n > 0) {
adam@1388	2212 if (*s == 0)
adam@1388	2213 return uw_Basis_False;
adam@1388	2214
adam@1388	2215 --n;
adam@1388	2216 ++s;
adam@1388	2217 }
adam@1388	2218
adam@1388	2219 return uw_Basis_True;
adam@1388	2220 }
adam@1388	2221
adamc@829	2222 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2223 return strchr(s, ch);
adamc@829	2224 }
adamc@829	2225
adamc@831	2226 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2227 return strcspn(s, chs);
adamc@831	2228 }
adamc@831	2229
adamc@829	2230 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2231 uw_Basis_string r = strchr(s, ch);
adamc@829	2232 if (r == NULL)
adamc@829	2233 return NULL;
adamc@829	2234 else {
adamc@829	2235 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2236 *nr = r - s;
adamc@829	2237 return nr;
adamc@829	2238 }
adamc@829	2239 }
adamc@829	2240
adam@1390	2241 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2242 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2243 if (r == NULL)
adam@1390	2244 return NULL;
adam@1390	2245 else {
adam@1390	2246 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2247 *nr = r - haystack;
adam@1390	2248 return nr;
adam@1390	2249 }
adam@1390	2250 }
adam@1390	2251
adamc@311	2252 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2253 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2254 char *s;
adamc@180	2255
adamc@311	2256 uw_check_heap(ctx, len);
adamc@180	2257
adamc@666	2258 s = ctx->heap.front;
adamc@180	2259
adamc@180	2260 strcpy(s, s1);
adamc@180	2261 strcat(s, s2);
adamc@666	2262 ctx->heap.front += len;
adamc@180	2263
adamc@180	2264 return s;
adamc@180	2265 }
adamc@278	2266
adamc@829	2267 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2268 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2269
adamc@829	2270 if (start < 0)
adamc@829	2271 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2272 if (len < 0)
adamc@829	2273 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2274 if (start + len > full_len)
adamc@829	2275 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2276
adamc@829	2277 if (start + len == full_len)
adamc@829	2278 return &s[start];
adamc@829	2279 else {
adamc@829	2280 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2281 memcpy(r, s+start, len);
adamc@829	2282 r[len] = 0;
adamc@829	2283 return r;
adamc@829	2284 }
adamc@829	2285
adamc@829	2286 }
adamc@829	2287
adamc@1023	2288 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2289 char *r;
adamc@1023	2290
adamc@1023	2291 uw_check_heap(ctx, 2);
adamc@1023	2292 r = ctx->heap.front;
adamc@1023	2293 r[0] = ch;
adamc@1023	2294 r[1] = 0;
adamc@1023	2295
adamc@1023	2296 ctx->heap.front += 2;
adamc@1023	2297
adamc@1023	2298 return r;
adamc@1023	2299 }
adamc@1023	2300
adamc@737	2301 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2302 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2303 char *s;
adamc@278	2304
adamc@311	2305 uw_check_heap(ctx, len);
adamc@278	2306
adamc@666	2307 s = ctx->heap.front;
adamc@278	2308
adamc@278	2309 strcpy(s, s1);
adamc@666	2310 ctx->heap.front += len;
adamc@278	2311
adamc@278	2312 return s;
adamc@278	2313 }
adamc@280	2314
adam@1295	2315 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2316 if (ctx->error_message[0]) {
adam@1295	2317 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2318 ctx->error_message[0] = 0;
adam@1295	2319 return s;
adam@1295	2320 } else
adam@1295	2321 return NULL;
adam@1295	2322 }
adam@1295	2323
adamc@737	2324 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2325 if (s1)
adamc@737	2326 return uw_strdup(ctx, s1);
adamc@493	2327 else
adamc@493	2328 return NULL;
adamc@493	2329 }
adamc@493	2330
adamc@742	2331 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2332 char *r = uw_malloc(ctx, len);
adamc@742	2333 memcpy(r, p, len);
adamc@742	2334 return r;
adamc@742	2335 }
adamc@280	2336
adamc@879	2337 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2338
adamc@311	2339 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2340 int len;
adamc@281	2341 char *r;
adamc@281	2342
adamc@311	2343 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2344 r = ctx->heap.front;
adamc@879	2345 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2346 ctx->heap.front += len+1;
adamc@281	2347 return r;
adamc@281	2348 }
adamc@281	2349
adamc@467	2350 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2351 if (n == NULL)
adamc@467	2352 return "NULL";
adamc@467	2353 else
adamc@467	2354 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2355 }
adamc@467	2356
adamc@879	2357 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879	2358
adamc@311	2359 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2360 int len;
adamc@281	2361 char *r;
adamc@281	2362
adamc@311	2363 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2364 r = ctx->heap.front;
adamc@879	2365 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2366 ctx->heap.front += len+1;
adamc@281	2367 return r;
adamc@281	2368 }
adamc@281	2369
adamc@467	2370 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2371 if (n == NULL)
adamc@467	2372 return "NULL";
adamc@467	2373 else
adamc@467	2374 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2375 }
adamc@467	2376
adamc@879	2377 int uw_Estrings = 1;
adamc@879	2378 char *uw_sqlsuffixString = "::text";
adamc@1011	2379 char *uw_sqlsuffixChar = "::char";
adamc@281	2380
adamc@311	2381 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2382 char r, s2;
adamc@280	2383
adamc@879	2384 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2385
adamc@666	2386 r = s2 = ctx->heap.front;
adamc@879	2387 if (uw_Estrings)
adamc@879	2388 *s2++ = 'E';
adamc@280	2389 *s2++ = '\'';
adamc@280	2390
adamc@280	2391 for (; *s; s++) {
adamc@280	2392 char c = *s;
adamc@280	2393
adamc@280	2394 switch (c) {
adamc@280	2395 case '\'':
adamc@885	2396 if (uw_Estrings)
adamc@885	2397 strcpy(s2, "\\'");
adamc@885	2398 else
adamc@885	2399 strcpy(s2, "''");
adamc@280	2400 s2 += 2;
adamc@280	2401 break;
adamc@280	2402 case '\\':
adamc@885	2403 if (uw_Estrings) {
adamc@885	2404 strcpy(s2, "\\\\");
adamc@885	2405 s2 += 2;
adamc@885	2406 } else
adamc@885	2407 *s2++ = '\\';
adamc@280	2408 break;
adamc@280	2409 default:
adamc@1150	2410 if (isprint((int)c))
adamc@280	2411 *s2++ = c;
adamc@879	2412 else if (uw_Estrings) {
adamc@737	2413 sprintf(s2, "\\%03o", c);
adamc@280	2414 s2 += 4;
adamc@280	2415 }
adamc@879	2416 else
adamc@879	2417 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280	2418 }
adamc@280	2419 }
adamc@280	2420
adamc@879	2421 *s2++ = '\'';
adamc@879	2422 strcpy(s2, uw_sqlsuffixString);
adamc@879	2423 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2424 return r;
adamc@280	2425 }
adamc@281	2426
adamc@1011	2427 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2428 char r, s2;
adamc@1011	2429
adamc@1011	2430 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2431
adamc@1011	2432 r = s2 = ctx->heap.front;
adamc@1011	2433 if (uw_Estrings)
adamc@1011	2434 *s2++ = 'E';
adamc@1011	2435 *s2++ = '\'';
adamc@1011	2436
adamc@1011	2437 switch (c) {
adamc@1011	2438 case '\'':
adamc@1011	2439 if (uw_Estrings)
adamc@1011	2440 strcpy(s2, "\\'");
adamc@1011	2441 else
adamc@1011	2442 strcpy(s2, "''");
adamc@1011	2443 s2 += 2;
adamc@1011	2444 break;
adamc@1011	2445 case '\\':
adamc@1011	2446 if (uw_Estrings) {
adamc@1011	2447 strcpy(s2, "\\\\");
adamc@1011	2448 s2 += 2;
adamc@1011	2449 } else
adamc@1011	2450 *s2++ = '\\';
adamc@1011	2451 break;
adamc@1011	2452 default:
adamc@1150	2453 if (isprint((int)c))
adamc@1011	2454 *s2++ = c;
adamc@1011	2455 else if (uw_Estrings) {
adamc@1011	2456 sprintf(s2, "\\%03o", c);
adamc@1011	2457 s2 += 4;
adamc@1011	2458 }
adamc@1011	2459 else
adamc@1011	2460 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2461 }
adamc@1011	2462
adamc@1011	2463 *s2++ = '\'';
adamc@1011	2464 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2465 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2466 return r;
adamc@1011	2467 }
adamc@1011	2468
adamc@879	2469 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2470
adamc@737	2471 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2472 char r, s2;
adamc@737	2473 size_t i;
adamc@737	2474
adamc@879	2475 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737	2476
adamc@737	2477 r = s2 = ctx->heap.front;
adamc@879	2478 if (uw_Estrings)
adamc@879	2479 *s2++ = 'E';
adamc@737	2480 *s2++ = '\'';
adamc@737	2481
adamc@737	2482 for (i = 0; i < b.size; ++i) {
adamc@737	2483 char c = b.data[i];
adamc@737	2484
adamc@737	2485 switch (c) {
adamc@737	2486 case '\'':
adamc@885	2487 if (uw_Estrings)
adamc@885	2488 strcpy(s2, "\\'");
adamc@885	2489 else
adamc@885	2490 strcpy(s2, "''");
adamc@737	2491 s2 += 2;
adamc@737	2492 break;
adamc@737	2493 case '\\':
adamc@885	2494 if (uw_Estrings) {
adamc@885	2495 strcpy(s2, "\\\\\\\\");
adamc@885	2496 s2 += 4;
adamc@885	2497 } else
adamc@885	2498 *s2++ = '\\';
adamc@737	2499 break;
adamc@737	2500 default:
adamc@1150	2501 if (isprint((int)c))
adamc@737	2502 *s2++ = c;
adamc@879	2503 else if (uw_Estrings) {
adamc@737	2504 sprintf(s2, "\\\\%03o", c);
adamc@737	2505 s2 += 5;
adamc@737	2506 }
adamc@879	2507 else
adamc@879	2508 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737	2509 }
adamc@737	2510 }
adamc@737	2511
adamc@879	2512 *s2++ = '\'';
adamc@879	2513 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2514 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2515 return r;
adamc@737	2516 }
adamc@737	2517
adamc@682	2518 char *uw_Basis_sqlifyChannel(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 + 7);
adamc@682	2524 r = ctx->heap.front;
adamc@879	2525 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2526 ctx->heap.front += len+1;
adamc@682	2527 return r;
adamc@682	2528 }
adamc@682	2529
adamc@682	2530 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2531 int len;
adamc@682	2532 char *r;
adamc@682	2533 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2534
adamc@682	2535 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2536 r = ctx->heap.front;
adamc@682	2537 sprintf(r, "%lld%n", combo, &len);
adamc@682	2538 ctx->heap.front += len+1;
adamc@682	2539 return r;
adamc@682	2540 }
adamc@682	2541
adamc@879	2542 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2543
adamc@682	2544 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2545 int len;
adamc@682	2546 char *r;
adamc@682	2547
adamc@682	2548 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2549 r = ctx->heap.front;
adamc@879	2550 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2551 ctx->heap.front += len+1;
adamc@682	2552 return r;
adamc@682	2553 }
adamc@682	2554
adamc@682	2555 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2556 int len;
adamc@682	2557 char *r;
adamc@682	2558
adamc@682	2559 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2560 r = ctx->heap.front;
adamc@682	2561 sprintf(r, "%u%n", cli, &len);
adamc@682	2562 ctx->heap.front += len+1;
adamc@682	2563 return r;
adamc@682	2564 }
adamc@682	2565
adamc@467	2566 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2567 if (s == NULL)
adamc@467	2568 return "NULL";
adamc@467	2569 else
adamc@467	2570 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2571 }
adamc@467	2572
adamc@311	2573 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2574 if (b == uw_Basis_False)
adamc@281	2575 return "FALSE";
adamc@281	2576 else
adamc@281	2577 return "TRUE";
adamc@281	2578 }
adamc@282	2579
adamc@467	2580 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2581 if (b == NULL)
adamc@467	2582 return "NULL";
adamc@467	2583 else
adamc@467	2584 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2585 }
adamc@467	2586
adamc@439	2587 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2588 size_t len;
adamc@682	2589 char r, s;
adam@1392	2590 struct tm stm = {};
adam@1392	2591 stm.tm_isdst = -1;
adamc@682	2592
adam@1365	2593 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2594 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2595 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1367	2596 if (t.microseconds) {
adam@1367	2597 r = uw_malloc(ctx, len + 21);
adam@1367	2598 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1367	2599 } else {
adam@1367	2600 r = uw_malloc(ctx, len + 14);
adam@1367	2601 sprintf(r, "'%s'::timestamp", s);
adam@1367	2602 }
adamc@682	2603 return r;
adamc@682	2604 } else
adamc@682	2605 return "<Invalid time>";
adamc@682	2606 }
adamc@682	2607
adamc@682	2608 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2609 size_t len;
adamc@439	2610 char *r;
adam@1392	2611 struct tm stm = {};
adam@1392	2612 stm.tm_isdst = -1;
adamc@439	2613
adam@1365	2614 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2615 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2616 r = ctx->heap.front;
adamc@439	2617 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2618 ctx->heap.front += len+1;
adamc@439	2619 return r;
adamc@439	2620 } else
adamc@439	2621 return "<Invalid time>";
adamc@439	2622 }
adamc@439	2623
adam@1364	2624 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2625 size_t len;
adam@1364	2626 char *r;
adam@1392	2627 struct tm stm = {};
adam@1392	2628 stm.tm_isdst = -1;
adam@1364	2629
adam@1365	2630 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2631 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2632 r = ctx->heap.front;
adam@1365	2633 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2634 ctx->heap.front += len;
adam@1365	2635 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2636 ctx->heap.front += 8;
adam@1364	2637 return r;
adam@1364	2638 } else
adam@1364	2639 return "<Invalid time>";
adam@1364	2640 }
adam@1364	2641
adamc@467	2642 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2643 if (t == NULL)
adamc@467	2644 return "NULL";
adamc@467	2645 else
adamc@467	2646 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2647 }
adamc@467	2648
adamc@311	2649 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2650 static uw_Basis_int true = 1;
adamc@311	2651 static uw_Basis_int false = 0;
adamc@282	2652
adamc@311	2653 if (b == uw_Basis_False)
adamc@282	2654 return (char *)&false;
adamc@282	2655 else
adamc@282	2656 return (char *)&true;
adamc@282	2657 }
adamc@284	2658
adamc@311	2659 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2660 int len;
adamc@284	2661 char *r;
adamc@284	2662
adamc@311	2663 uw_check_heap(ctx, INTS_MAX);
adamc@666	2664 r = ctx->heap.front;
adamc@284	2665 sprintf(r, "%lld%n", n, &len);
adamc@666	2666 ctx->heap.front += len+1;
adamc@284	2667 return r;
adamc@284	2668 }
adamc@285	2669
adamc@311	2670 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2671 int len;
adamc@285	2672 char *r;
adamc@285	2673
adamc@311	2674 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2675 r = ctx->heap.front;
adamc@285	2676 sprintf(r, "%g%n", n, &len);
adamc@666	2677 ctx->heap.front += len+1;
adamc@285	2678 return r;
adamc@285	2679 }
adamc@285	2680
adamc@821	2681 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2682 char *r = uw_malloc(ctx, 2);
adamc@821	2683 r[0] = ch;
adamc@821	2684 r[1] = 0;
adamc@821	2685 return r;
adamc@821	2686 }
adamc@821	2687
adamc@311	2688 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2689 if (b == uw_Basis_False)
adamc@285	2690 return "False";
adamc@285	2691 else
adamc@285	2692 return "True";
adamc@285	2693 }
adamc@288	2694
adamc@436	2695 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436	2696 size_t len;
adamc@436	2697 char *r;
adam@1392	2698 struct tm stm = {};
adam@1392	2699 stm.tm_isdst = -1;
adamc@436	2700
adam@1365	2701 if (localtime_r(&t.seconds, &stm)) {
adamc@436	2702 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2703 r = ctx->heap.front;
adamc@436	2704 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2705 ctx->heap.front += len+1;
adamc@436	2706 return r;
adamc@436	2707 } else
adamc@436	2708 return "<Invalid time>";
adamc@436	2709 }
adamc@288	2710
adam@1359	2711 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2712 size_t len;
adam@1352	2713 char *r;
adam@1392	2714 struct tm stm = {};
adam@1392	2715 stm.tm_isdst = -1;
adam@1352	2716
adam@1365	2717 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2718 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2719 r = ctx->heap.front;
adam@1352	2720 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2721 ctx->heap.front += len+1;
adam@1352	2722 return r;
adam@1352	2723 } else
adam@1352	2724 return "<Invalid time>";
adam@1352	2725 }
adam@1352	2726
adamc@311	2727 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2728 char *endptr;
adamc@311	2729 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2730
adamc@288	2731 if (s != '\0' && endptr == '\0') {
adamc@311	2732 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2733 *r = n;
adamc@288	2734 return r;
adamc@288	2735 } else
adamc@288	2736 return NULL;
adamc@288	2737 }
adamc@289	2738
adamc@311	2739 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2740 char *endptr;
adamc@311	2741 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2742
adamc@289	2743 if (s != '\0' && endptr == '\0') {
adamc@311	2744 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2745 *r = n;
adamc@289	2746 return r;
adamc@289	2747 } else
adamc@289	2748 return NULL;
adamc@289	2749 }
adamc@289	2750
adamc@821	2751 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2752 if (s[0] == 0) {
adamc@821	2753 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2754 r[0] = 0;
adamc@821	2755 return r;
adamc@821	2756 } else if (s[1] != 0)
adamc@821	2757 return NULL;
adamc@821	2758 else {
adamc@821	2759 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2760 r[0] = s[0];
adamc@821	2761 return r;
adamc@821	2762 }
adamc@821	2763 }
adamc@821	2764
adamc@311	2765 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2766 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2767 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2768
adamc@289	2769 if (!strcasecmp (s, "True"))
adamc@289	2770 return &true;
adamc@289	2771 else if (!strcasecmp (s, "False"))
adamc@289	2772 return &false;
adamc@289	2773 else
adamc@289	2774 return NULL;
adamc@289	2775 }
adamc@292	2776
adamc@436	2777 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2778 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2779 struct tm stm = {};
adam@1392	2780 stm.tm_isdst = -1;
adamc@436	2781
adamc@439	2782 if (dot) {
adamc@439	2783 *dot = 0;
adamc@439	2784 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2785 *dot = '.';
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 {
adamc@439	2792 *dot = '.';
adamc@439	2793 return NULL;
adamc@439	2794 }
adamc@436	2795 }
adamc@439	2796 else {
adamc@439	2797 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2798 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2799 r->seconds = mktime(&stm);
adam@1365	2800 r->microseconds = 0;
adamc@439	2801 return r;
adamc@439	2802 }
adamc@439	2803 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2804 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2805 r->seconds = mktime(&stm);
adam@1365	2806 r->microseconds = 0;
adamc@439	2807 return r;
adamc@439	2808 }
adamc@439	2809 else
adamc@439	2810 return NULL;
adamc@439	2811 }
adamc@436	2812 }
adamc@436	2813
adam@1352	2814 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2815 char *end = strchr(s, 0);
adam@1374	2816 struct tm stm = {};
adam@1392	2817 stm.tm_isdst = -1;
adam@1352	2818
adam@1352	2819 if (strptime(s, fmt, &stm) == end) {
adam@1352	2820 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2821 r->seconds = mktime(&stm);
adam@1365	2822 r->microseconds = 0;
adam@1352	2823 return r;
adam@1352	2824 }
adam@1352	2825 else
adam@1352	2826 return NULL;
adam@1352	2827 }
adam@1352	2828
adamc@311	2829 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2830 char *endptr;
adamc@311	2831 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2832
adamc@292	2833 if (s != '\0' && endptr == '\0')
adamc@292	2834 return n;
adamc@292	2835 else
adam@1444	2836 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	2837 }
adamc@293	2838
adamc@682	2839 #include <errno.h>
adamc@682	2840
adamc@678	2841 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2842 unsigned long long n;
adamc@682	2843
adamc@682	2844 if (sscanf(s, "%llu", &n) < 1)
adam@1444	2845 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	2846 else {
adamc@682	2847 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2848 return ch;
adamc@682	2849 }
adamc@682	2850 }
adamc@682	2851
adamc@682	2852 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2853 char *endptr;
adamc@682	2854 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2855
adamc@678	2856 if (s != '\0' && endptr == '\0')
adamc@678	2857 return n;
adamc@678	2858 else
adam@1444	2859 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	2860 }
adamc@678	2861
adamc@311	2862 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2863 char *endptr;
adamc@311	2864 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2865
adamc@293	2866 if (s != '\0' && endptr == '\0')
adamc@293	2867 return n;
adamc@293	2868 else
adam@1444	2869 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2870 }
adamc@293	2871
adamc@821	2872 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2873 if (s[0] == 0)
adamc@821	2874 return 0;
adamc@821	2875 else if (s[1] != 0)
adam@1444	2876 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	2877 else
adamc@821	2878 return s[0];
adamc@821	2879 }
adamc@821	2880
adamc@311	2881 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2882 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2883 return uw_Basis_True;
adamc@296	2884 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2885 return uw_Basis_False;
adamc@293	2886 else
adam@1444	2887 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	2888 }
adamc@436	2889
adam@1352	2890 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	2891 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	2892 struct tm stm = {};
adam@1392	2893 stm.tm_isdst = -1;
adam@1352	2894
adam@1352	2895 if (dot) {
adam@1352	2896 *dot = 0;
adam@1352	2897 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	2898 *dot = '.';
adam@1410	2899 char usec[] = "000000";
adam@1410	2900 int len = strlen(dot+1);
adam@1410	2901 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	2902 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	2903 return r;
adam@1352	2904 }
adam@1352	2905 else {
adam@1352	2906 *dot = '.';
adam@1444	2907 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	2908 }
adam@1352	2909 }
adam@1352	2910 else {
adam@1352	2911 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	2912 uw_Basis_time r = { mktime(&stm) };
adam@1365	2913 return r;
adam@1352	2914 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	2915 uw_Basis_time r = { mktime(&stm) };
adam@1365	2916 return r;
adam@1352	2917 } else
adam@1444	2918 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	2919 }
adam@1352	2920 }
adam@1352	2921
adamc@436	2922 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2923 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2924 struct tm stm = {};
adam@1392	2925 stm.tm_isdst = -1;
adamc@436	2926
adamc@438	2927 if (dot) {
adamc@438	2928 *dot = 0;
adamc@438	2929 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2930 *dot = '.';
adam@1365	2931 {
adam@1365	2932 uw_Basis_time r = { mktime(&stm) };
adam@1365	2933 return r;
adam@1365	2934 }
adamc@438	2935 }
adamc@438	2936 else {
adamc@438	2937 *dot = '.';
adam@1444	2938 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	2939 }
adamc@438	2940 }
adamc@438	2941 else {
adam@1365	2942 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	2943 uw_Basis_time r = { mktime(&stm) };
adam@1365	2944 return r;
adam@1365	2945 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	2946 uw_Basis_time r = { mktime(&stm) };
adam@1365	2947 return r;
adam@1365	2948 } else
adam@1444	2949 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	2950 }
adamc@436	2951 }
adamc@457	2952
adam@1352	2953 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	2954 char *end = strchr(s, 0);
adamc@939	2955 struct tm stm = {};
adam@1392	2956 stm.tm_isdst = -1;
adamc@939	2957
adam@1365	2958 if (strptime(s, fmt, &stm) == end) {
adam@1365	2959 uw_Basis_time r = { mktime(&stm) };
adam@1365	2960 return r;
adam@1365	2961 } else
adam@1444	2962 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	2963 }
adamc@939	2964
adamc@742	2965 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	2966 char *r = ctx->heap.front;
adamc@742	2967 uw_Basis_blob b = {len, r};
adamc@742	2968
adamc@742	2969 uw_check_heap(ctx, len);
adamc@742	2970
adamc@742	2971 while (*s) {
adamc@742	2972 if (s[0] == '\\') {
adamc@742	2973 if (s[1] == '\\') {
adamc@742	2974 *r++ = '\\';
adamc@742	2975 s += 2;
adamc@1153	2976 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adamc@742	2977 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	2978 s += 4;
adamc@742	2979 }
adamc@742	2980 else {
adamc@742	2981 *r++ = '\\';
adamc@742	2982 ++s;
adamc@742	2983 }
adamc@742	2984 } else {
adamc@742	2985 *r++ = s[0];
adamc@742	2986 ++s;
adamc@742	2987 }
adamc@742	2988 }
adamc@742	2989
adamc@742	2990 b.size = r - ctx->heap.front;
adamc@742	2991 ctx->heap.front = r;
adamc@742	2992 return b;
adamc@742	2993 }
adamc@742	2994
adam@1402	2995 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	2996
adamc@463	2997 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	2998 int len = strlen(c);
adamc@854	2999 char *p = ctx->outHeaders.start;
adamc@474	3000
adamc@1134	3001 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3002 char *p2;
adamc@474	3003 p += 13;
adamc@474	3004 p2 = strchr(p, '=');
adamc@474	3005
adamc@474	3006 if (p2) {
adamc@474	3007 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3008
adamc@474	3009 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3010 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3011 return NULL;
adamc@1052	3012 else {
adamc@1052	3013 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3014 memcpy(ret, p2+1, sz);
adamc@1052	3015 ret[sz] = 0;
adamc@1052	3016 return ret;
adamc@1052	3017 }
adamc@474	3018 }
adamc@474	3019 }
adamc@474	3020 }
adamc@463	3021
adamc@1134	3022 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3023 char *p2;
adamc@1051	3024
adamc@854	3025 while (1) {
adamc@1051	3026 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3027 if ((p2 = strchr(p, ';'))) {
adamc@1051	3028 size_t n = p2 - (p + len);
adamc@1051	3029 char *r = uw_malloc(ctx, n);
adamc@1051	3030 memcpy(r, p + 1 + len, n-1);
adamc@1051	3031 r[n-1] = 0;
adamc@1051	3032 return r;
adamc@1051	3033 } else
adamc@1051	3034 return p + 1 + len;
adamc@1134	3035 } else if ((p = strchr(p, ';')))
adamc@854	3036 p += 2;
adamc@463	3037 else
adamc@463	3038 return NULL;
adamc@463	3039 }
adamc@463	3040 }
adamc@792	3041
adamc@792	3042 return NULL;
adamc@457	3043 }
adamc@462	3044
adamc@1050	3045 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	3046 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3047 uw_write_header(ctx, c);
adamc@462	3048 uw_write_header(ctx, "=");
adamc@462	3049 uw_write_header(ctx, v);
adamc@466	3050 uw_write_header(ctx, "; path=");
adamc@466	3051 uw_write_header(ctx, prefix);
adamc@1050	3052 if (expires) {
adamc@1050	3053 char formatted[30];
adam@1392	3054 struct tm tm = {};
adam@1392	3055 tm.tm_isdst = -1;
adamc@1050	3056
adam@1365	3057 gmtime_r(&expires->seconds, &tm);
adamc@1050	3058
adamc@1050	3059 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3060
adamc@1050	3061 uw_write_header(ctx, "; expires=");
adamc@1050	3062 uw_write_header(ctx, formatted);
adamc@1050	3063 }
adamc@1050	3064 if (secure)
adamc@1050	3065 uw_write_header(ctx, "; secure");
adamc@462	3066 uw_write_header(ctx, "\r\n");
adamc@462	3067
adamc@462	3068 return uw_unit_v;
adamc@462	3069 }
adamc@667	3070
adamc@1050	3071 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3072 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3073 uw_write_header(ctx, c);
adamc@1050	3074 uw_write_header(ctx, "=; path=");
adamc@1050	3075 uw_write_header(ctx, prefix);
adamc@1052	3076 uw_write_header(ctx, "; " THE_PAST "\r\n");
adamc@1050	3077
adamc@1050	3078 return uw_unit_v;
adamc@1050	3079 }
adamc@1050	3080
adamc@1113	3081 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3082
adamc@682	3083 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3084 unsigned i;
adamc@682	3085 delta *d;
adamc@671	3086
adamc@682	3087 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3088 if (ctx->deltas[i].client == client)
adamc@682	3089 return &ctx->deltas[i];
adamc@671	3090
adamc@682	3091 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3092 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3093 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3094
adamc@682	3095 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3096 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3097 }
adamc@671	3098
adamc@682	3099 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3100 d->client = client;
adam@1369	3101 uw_buffer_reset(&d->msgs);
adamc@682	3102 return d;
adamc@671	3103 }
adamc@671	3104
adamc@668	3105 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3106 if (ctx->client == NULL)
adamc@682	3107 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3108
adamc@682	3109 return new_channel(ctx->client);
adamc@668	3110 }
adamc@668	3111
adamc@668	3112 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3113 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3114 size_t len;
adamc@682	3115 int preLen;
adamc@682	3116 char pre[INTS_MAX + 2];
adamc@668	3117
adamc@682	3118 len = strlen(msg);
adamc@682	3119
adamc@682	3120 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3121
adam@1369	3122 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3123 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3124 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3125
adamc@671	3126 return uw_unit_v;
adamc@668	3127 }
adamc@671	3128
adam@1327	3129 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3130 int i;
adamc@1131	3131 cleanup *cl;
adamc@1131	3132
adamc@1131	3133 if (ctx->client)
adamc@1131	3134 release_client(ctx->client);
adamc@1131	3135
adamc@1131	3136 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3137 cl->func(cl->arg);
adamc@1131	3138
adamc@1131	3139 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3140
adamc@1131	3141 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3142 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3143 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3144
adamc@1131	3145 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3146 if (ctx->transactionals[i].free)
adam@1327	3147 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3148
adamc@1144	3149 return ctx->app ? ctx->app->db_rollback(ctx) : 0;
adamc@1131	3150 }
adamc@1131	3151
adamc@671	3152 void uw_commit(uw_context ctx) {
adamc@1104	3153 int i;
adamc@1104	3154
adamc@1131	3155 if (uw_has_error(ctx)) {
adam@1327	3156 uw_rollback(ctx, 0);
adamc@1131	3157 return;
adamc@1131	3158 }
adamc@1131	3159
adamc@1104	3160 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3161 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3162 if (ctx->transactionals[i].commit) {
adamc@1083	3163 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3164 if (uw_has_error(ctx)) {
adam@1327	3165 uw_rollback(ctx, 0);
adamc@1131	3166 return;
adamc@1131	3167 }
adamc@1131	3168 }
adamc@771	3169
adamc@1104	3170 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3171 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3172 if (ctx->transactionals[i].commit) {
adamc@1083	3173 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3174 if (uw_has_error(ctx)) {
adam@1327	3175 uw_rollback(ctx, 0);
adamc@1131	3176 return;
adamc@1131	3177 }
adamc@1131	3178 }
adamc@1131	3179
adamc@1131	3180 if (ctx->app->db_commit(ctx)) {
adamc@1131	3181 uw_set_error_message(ctx, "Error running SQL COMMIT");
adamc@1131	3182 return;
adamc@1131	3183 }
adamc@682	3184
adamc@682	3185 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3186 delta *d = &ctx->deltas[i];
adamc@682	3187 client *c = find_client(d->client);
adamc@682	3188
adamc@682	3189 assert (c != NULL && c->mode == USED);
adamc@682	3190
adam@1447	3191 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3192 }
adamc@682	3193
adamc@682	3194 if (ctx->client)
adamc@685	3195 release_client(ctx->client);
adamc@771	3196
adamc@1104	3197 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3198 if (ctx->transactionals[i].free)
adam@1327	3199 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3200
adam@1413	3201 if (*ctx->page.front)
adam@1413	3202 uw_writec(ctx, 0);
adam@1413	3203
adamc@916	3204 // Splice script data into appropriate part of page
adamc@1065	3205 if (ctx->returning_indirectly \|\| ctx->script_header[0] == 0) {
adamc@995	3206 char *start = strstr(ctx->page.start, "<sc>");
adamc@995	3207 if (start) {
adam@1369	3208 memmove(start, start + 4, uw_buffer_used(&ctx->page) - (start - ctx->page.start) - 4);
adamc@995	3209 ctx->page.front -= 4;
adamc@995	3210 }
adam@1369	3211 } else if (uw_buffer_used(&ctx->script) == 0) {
adamc@916	3212 size_t len = strlen(ctx->script_header);
adamc@916	3213 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	3214 if (start) {
adam@1369	3215 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) - 4 + len);
adamc@917	3216 start = strstr(ctx->page.start, "<sc>");
adam@1369	3217 memmove(start + len, start + 4, uw_buffer_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	3218 ctx->page.front += len - 4;
adamc@916	3219 memcpy(start, ctx->script_header, len);
adamc@916	3220 }
adamc@916	3221 } else {
adam@1369	3222 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adamc@916	3223 size_t lenP = lenH + 40 + len;
adamc@916	3224 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	3225 if (start) {
adam@1369	3226 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) - 4 + lenP);
adamc@917	3227 start = strstr(ctx->page.start, "<sc>");
adam@1369	3228 memmove(start + lenP, start + 4, uw_buffer_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	3229 ctx->page.front += lenP - 4;
adamc@916	3230 memcpy(start, ctx->script_header, lenH);
adamc@916	3231 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916	3232 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916	3233 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916	3234 }
adamc@916	3235 }
adamc@671	3236 }
adamc@671	3237
adamc@683	3238
adamc@1113	3239 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3240
adamc@771	3241 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3242 uw_callback_with_retry free) {
adamc@771	3243 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3244 if (ctx->used_transactionals+1 > uw_transactionals_max)
adamc@1113	3245 uw_error(ctx, FATAL, "Exceeded limit on number of transactionals");
adamc@1084	3246 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3247 ++ctx->n_transactionals;
adamc@771	3248 }
adamc@771	3249
adamc@771	3250 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3251 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3252 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3253 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	3254 }
adamc@771	3255
adamc@683	3256
adamc@683	3257 // "Garbage collection"
adamc@683	3258
adamc@1121	3259 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3260 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3261
adamc@1121	3262 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3263 int r = setjmp(ctx->jmp_buf);
adamc@683	3264
adamc@1121	3265 if (r == 0)
adamc@1121	3266 uw_do_expunge(ctx, cli, data);
adamc@1121	3267 else
adamc@1121	3268 ctx->app->db_rollback(ctx);
adamc@1121	3269
adamc@1121	3270 uw_post_expunge(ctx, data);
adamc@683	3271
adamc@683	3272 return r;
adamc@683	3273 }
adamc@683	3274
adamc@683	3275 void uw_prune_clients(uw_context ctx) {
adamc@683	3276 client c, next, *prev = NULL;
adamc@683	3277 time_t cutoff;
adamc@683	3278
adamc@1094	3279 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3280
adamc@683	3281 pthread_mutex_lock(&clients_mutex);
adamc@683	3282
adamc@683	3283 for (c = clients_used; c; c = next) {
adamc@683	3284 next = c->next;
adamc@683	3285 pthread_mutex_lock(&c->lock);
adamc@685	3286 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3287 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3288 if (prev)
adamc@683	3289 prev->next = next;
adamc@683	3290 else
adamc@683	3291 clients_used = next;
adamc@684	3292 uw_reset(ctx);
adamc@683	3293 while (fk == UNLIMITED_RETRY) {
adamc@1121	3294 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3295 if (fk == UNLIMITED_RETRY)
adamc@684	3296 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3297 }
adamc@684	3298 if (fk == SUCCESS)
adamc@684	3299 free_client(c);
adamc@1121	3300 else
adamc@856	3301 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3302 }
adamc@683	3303 else
adamc@683	3304 prev = c;
adamc@683	3305 pthread_mutex_unlock(&c->lock);
adamc@683	3306 }
adamc@683	3307
adamc@683	3308 pthread_mutex_unlock(&clients_mutex);
adamc@683	3309 }
adamc@687	3310
adamc@687	3311 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3312 int r = setjmp(ctx->jmp_buf);
adamc@687	3313
adamc@687	3314 if (r == 0) {
adamc@1094	3315 if (ctx->app->db_begin(ctx))
adamc@687	3316 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@1094	3317 ctx->app->initializer(ctx);
adamc@1094	3318 if (ctx->app->db_commit(ctx))
adamc@687	3319 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3320 }
adamc@687	3321
adamc@687	3322 return r;
adamc@687	3323 }
adamc@717	3324
adamc@1065	3325 static int url_bad(uw_Basis_string s) {
adamc@1065	3326 for (; *s; ++s)
adamc@1153	3327 if (!isgraph((int)*s))
adamc@1065	3328 return 1;
adamc@1065	3329
adamc@1065	3330 return 0;
adamc@1065	3331 }
adamc@1065	3332
adamc@717	3333 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3334 if (url_bad(s))
adamc@1065	3335 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3336 if (ctx->app->check_url(s))
adamc@770	3337 return s;
adamc@770	3338 else
adamc@770	3339 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3340 }
adamc@734	3341
adamc@770	3342 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3343 if (url_bad(s))
adamc@1065	3344 return NULL;
adamc@1094	3345 if (ctx->app->check_url(s))
adamc@770	3346 return s;
adamc@770	3347 else
adamc@770	3348 return NULL;
adamc@770	3349 }
adamc@770	3350
adamc@770	3351 int mime_format(const char *s) {
adamc@770	3352 for (; *s; ++s)
adamc@1153	3353 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.')
adamc@770	3354 return 0;
adamc@770	3355
adamc@770	3356 return 1;
adamc@770	3357 }
adamc@770	3358
adamc@741	3359 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3360 if (!mime_format(s))
adamc@770	3361 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3362
adamc@1094	3363 if (ctx->app->check_mime(s))
adamc@770	3364 return s;
adamc@770	3365 else
adamc@770	3366 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3367 }
adamc@770	3368
adamc@770	3369 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3370 if (!mime_format(s))
adamc@770	3371 return NULL;
adamc@770	3372
adamc@1094	3373 if (ctx->app->check_mime(s))
adamc@770	3374 return s;
adamc@770	3375 else
adamc@770	3376 return NULL;
adamc@741	3377 }
adamc@741	3378
adamc@734	3379 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3380 return s ? s : "";
adamc@734	3381 }
adamc@734	3382
adamc@734	3383 extern int uw_hash_blocksize;
adamc@734	3384
adamc@734	3385 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3386 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3387 int i;
adamc@734	3388
adamc@734	3389 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3390 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3391
adamc@734	3392 return r;
adamc@734	3393 }
adamc@734	3394
adamc@734	3395 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@1094	3396 return ctx->app->cookie_sig(ctx);
adamc@734	3397 }
adamc@737	3398
adamc@737	3399 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3400 return f.name;
adamc@737	3401 }
adamc@737	3402
adamc@740	3403 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3404 return f.type;
adamc@740	3405 }
adamc@740	3406
adamc@745	3407 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3408 return b.size;
adamc@745	3409 }
adamc@745	3410
adamc@1119	3411 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3412 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3413
adamc@1119	3414 return b;
adamc@1119	3415 }
adamc@1119	3416
adamc@737	3417 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3418 return f.data;
adamc@737	3419 }
adamc@741	3420
adam@1347	3421 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3422 return pb.type;
adam@1347	3423 }
adam@1347	3424
adam@1347	3425 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3426 return pb.data;
adam@1347	3427 }
adam@1347	3428
adamc@741	3429 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3430 cleanup *cl;
adamc@741	3431 int len;
adamc@741	3432
adam@1451	3433 if (!ctx->allowed_to_return_indirectly)
adam@1451	3434 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3435
adamc@1065	3436 ctx->returning_indirectly = 1;
adam@1369	3437 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3438 uw_buffer_reset(&ctx->page);
adamc@741	3439
adamc@856	3440 uw_write_header(ctx, on_success);
adamc@856	3441 uw_write_header(ctx, "Content-Type: ");
adamc@741	3442 uw_write_header(ctx, mimeType);
adamc@741	3443 uw_write_header(ctx, "\r\nContent-Length: ");
adam@1369	3444 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3445 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3446 ctx->outHeaders.front += len;
adamc@1066	3447 uw_write_header(ctx, "\r\n");
adamc@741	3448
adam@1369	3449 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3450
adamc@741	3451 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3452 cl->func(cl->arg);
adamc@741	3453
adamc@741	3454 ctx->cleanup_front = ctx->cleanup;
adamc@741	3455
adamc@1065	3456 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3457 }
adamc@1065	3458
adamc@1065	3459 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3460 cleanup *cl;
adamc@1066	3461 char *s;
adamc@1065	3462
adam@1451	3463 if (!ctx->allowed_to_return_indirectly)
adam@1451	3464 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3465
adamc@1065	3466 ctx->returning_indirectly = 1;
adam@1369	3467 uw_buffer_reset(&ctx->page);
adam@1369	3468 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3469 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3470 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3471 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3472
adam@1409	3473 if (on_success[0])
adam@1409	3474 uw_write_header(ctx, on_redirect);
adam@1409	3475 else
adam@1409	3476 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3477 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3478 if (s) {
adamc@1066	3479 char *s2;
adam@1409	3480 if (s[0] == '\n') ++s;
adam@1409	3481 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3482 *s2 = 0;
adamc@1066	3483 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3484 uw_write_header(ctx, s);
adamc@1066	3485 uw_write_header(ctx, "\n");
adamc@1066	3486 }
adamc@1066	3487 }
adamc@1066	3488 }
adamc@1066	3489
adamc@1065	3490 uw_write_header(ctx, "Location: ");
adamc@1065	3491 uw_write_header(ctx, url);
adamc@1065	3492 uw_write_header(ctx, "\r\n\r\n");
adamc@1065	3493
adamc@1065	3494 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3495 cl->func(cl->arg);
adamc@1065	3496
adamc@1065	3497 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3498
adamc@1065	3499 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3500 }
adamc@874	3501
adamc@874	3502 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adamc@874	3503 uw_Basis_string r = uw_malloc(ctx, strlen(s) + 1);
adamc@874	3504
adamc@874	3505 for (; *s; ++s) {
adamc@874	3506 if (s[0] == '\'') {
adamc@874	3507 *r++ = '\'';
adamc@874	3508 for (++s; *s; ++s) {
adamc@874	3509 if (s[0] == '\'') {
adamc@874	3510 *r++ = '\'';
adamc@874	3511 break;
adamc@874	3512 } else if (s[0] == '\\') {
adamc@874	3513 if (s[1] == '\\') {
adamc@874	3514 *r++ = '\\';
adamc@874	3515 *r++ = '\\';
adamc@874	3516 ++s;
adamc@874	3517 } else if (s[1] == '\'') {
adamc@874	3518 *r++ = '\\';
adamc@874	3519 *r++ = '\'';
adamc@874	3520 ++s;
adamc@874	3521 } else
adamc@874	3522 *r++ = '\'';
adamc@874	3523 } else
adamc@874	3524 *r++ = s[0];
adamc@874	3525 }
adamc@874	3526 if (*s == 0) break;
adamc@874	3527 } else if (s[0] == 'T' && s[1] == '.')
adamc@874	3528 ++s;
adamc@874	3529 else
adamc@874	3530 *r++ = s[0];
adamc@874	3531 }
adamc@874	3532
adamc@874	3533 return r;
adamc@874	3534 }
adamc@874	3535
adamc@922	3536 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3537 va_list ap;
adamc@922	3538 size_t len = 1;
adamc@922	3539 char s, r, *s2;
adamc@922	3540
adamc@922	3541 va_start(ap, ctx);
adamc@922	3542 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3543 len += strlen(s);
adamc@922	3544 va_end(ap);
adamc@922	3545
adamc@922	3546 r = uw_malloc(ctx, len);
adamc@922	3547 va_start(ap, ctx);
adamc@922	3548 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3549 while (*s)
adamc@922	3550 s2++ = s++;
adamc@922	3551 va_end(ap);
adamc@922	3552 *s2 = 0;
adamc@922	3553
adamc@922	3554 return r;
adamc@922	3555 }
adamc@1006	3556
adam@1365	3557 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	3558
adamc@1006	3559 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	3560 uw_Basis_time r = { time(NULL) };
adam@1365	3561 return r;
adamc@1006	3562 }
adamc@1061	3563
adam@1369	3564 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	3565 tm.seconds += n;
adam@1365	3566 return tm;
adamc@1138	3567 }
adamc@1138	3568
adamc@1061	3569 void uw_get_global(uw_context ctx, char name) {
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@1061	3574 return ctx->globals[i].data;
adamc@1061	3575
adamc@1061	3576 return NULL;
adamc@1061	3577 }
adamc@1061	3578
adamc@1113	3579 size_t uw_globals_max = SIZE_MAX;
adamc@1113	3580
adamc@1061	3581 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	3582 int i;
adamc@1061	3583
adamc@1061	3584 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3585 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	3586 if (ctx->globals[i].free)
adamc@1061	3587 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	3588 ctx->globals[i].data = data;
adamc@1061	3589 ctx->globals[i].free = free;
adamc@1061	3590 return;
adamc@1061	3591 }
adamc@1089	3592
adamc@1113	3593 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	3594 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	3595
adamc@1061	3596 ++ctx->n_globals;
adamc@1061	3597 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	3598 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	3599 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	3600 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	3601 }
adamc@1061	3602
adamc@1061	3603 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	3604 return !!isalnum((int)c);
adamc@1061	3605 }
adamc@1061	3606
adamc@1061	3607 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	3608 return !!isalpha((int)c);
adamc@1061	3609 }
adamc@1061	3610
adamc@1061	3611 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	3612 return !!isblank((int)c);
adamc@1061	3613 }
adamc@1061	3614
adamc@1061	3615 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	3616 return !!iscntrl((int)c);
adamc@1061	3617 }
adamc@1061	3618
adamc@1061	3619 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3620 return !!isdigit((int)c);
adamc@1061	3621 }
adamc@1061	3622
adamc@1061	3623 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	3624 return !!isgraph((int)c);
adamc@1061	3625 }
adamc@1061	3626
adamc@1061	3627 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3628 return !!islower((int)c);
adamc@1061	3629 }
adamc@1061	3630
adamc@1061	3631 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	3632 return !!isprint((int)c);
adamc@1061	3633 }
adamc@1061	3634
adamc@1061	3635 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	3636 return !!ispunct((int)c);
adamc@1061	3637 }
adamc@1061	3638
adamc@1061	3639 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	3640 return !!isspace((int)c);
adamc@1061	3641 }
adamc@1063	3642
adamc@1061	3643 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3644 return !!isupper((int)c);
adamc@1061	3645 }
adamc@1061	3646
adamc@1061	3647 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3648 return !!isxdigit((int)c);
adamc@1061	3649 }
adamc@1061	3650
adamc@1061	3651 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3652 return tolower((int)c);
adamc@1061	3653 }
adamc@1061	3654
adamc@1061	3655 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3656 return toupper((int)c);
adamc@1061	3657 }
adamc@1066	3658
adamc@1128	3659 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	3660 return (unsigned char)c;
adamc@1128	3661 }
adamc@1128	3662
adamc@1128	3663 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	3664 return n;
adamc@1128	3665 }
adamc@1128	3666
adamc@1066	3667 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	3668 return ctx->current_url;
adamc@1066	3669 }
adamc@1066	3670
adamc@1066	3671 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	3672 ctx->current_url = s;
adamc@1066	3673 }
adamc@1114	3674
adamc@1114	3675 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	3676 ctx->deadline = n;
adamc@1114	3677 }
adamc@1114	3678
adamc@1114	3679 void uw_check_deadline(uw_context ctx) {
adamc@1114	3680 if (uw_time > ctx->deadline)
adamc@1114	3681 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	3682 }
adamc@1115	3683
adamc@1115	3684 size_t uw_database_max = SIZE_MAX;
adamc@1120	3685
adam@1389	3686 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@1389	3687 fprintf(stderr, "%s\n", s);
adam@1389	3688 return 0;
adam@1389	3689 }
adam@1389	3690
adamc@1120	3691 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
adam@1334	3692 if (ctx->log_debug)
adam@1334	3693 ctx->log_debug(ctx->logger_data, "%s\n", s);
adam@1334	3694 else
adam@1334	3695 fprintf(stderr, "%s\n", s);
adamc@1120	3696 return uw_unit_v;
adamc@1120	3697 }
adamc@1250	3698
adamc@1250	3699 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adamc@1250	3700 uw_Basis_int n = abs(rand());
adamc@1250	3701 return n;
adamc@1250	3702 }
adam@1347	3703
adam@1347	3704 void uw_noPostBody(uw_context ctx) {
adam@1347	3705 ctx->hasPostBody = 0;
adam@1347	3706 }
adam@1347	3707
adam@1347	3708 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3709 ctx->hasPostBody = 1;
adam@1347	3710 ctx->postBody = pb;
adam@1347	3711 }
adam@1347	3712
adam@1347	3713 int uw_hasPostBody(uw_context ctx) {
adam@1347	3714 return ctx->hasPostBody;
adam@1347	3715 }
adam@1347	3716
adam@1386	3717 void uw_isPost(uw_context ctx) {
adam@1386	3718 ctx->isPost = 1;
adam@1386	3719 }
adam@1386	3720
adam@1386	3721 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	3722 return ctx->isPost;
adam@1386	3723 }
adam@1386	3724
adam@1370	3725 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	3726 ctx->queryString = s;
adam@1370	3727 }
adam@1370	3728
adam@1370	3729 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	3730 return ctx->queryString;
adam@1370	3731 }
adam@1370	3732
adam@1347	3733 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	3734 if (ctx->hasPostBody)
adam@1347	3735 return ctx->postBody;
adam@1347	3736 else
adam@1347	3737 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	3738 }
adam@1349	3739
adam@1349	3740 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	3741 int r = setjmp(ctx->jmp_buf);
adam@1349	3742
adam@1349	3743 if (r == 0) {
adam@1418	3744 if (ctx->app->db_begin(ctx))
adam@1418	3745 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1418	3746
adam@1349	3747 callback(ctx);
adam@1349	3748 }
adam@1349	3749
adam@1349	3750 return r;
adam@1349	3751 }
adam@1360	3752
adam@1360	3753 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	3754 char buf[14];
adam@1397	3755 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	3756 }
adam@1365	3757
adam@1365	3758 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	3759 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	3760 }
adam@1365	3761
adam@1365	3762 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	3763 return !!(t1.seconds < t2.seconds \|\| t1.microseconds < t2.microseconds);
adam@1365	3764 }
adam@1365	3765
adam@1365	3766 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	3767 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	3768 }
adam@1365	3769
adam@1372	3770 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	3771 struct tm stm = {};
adam@1375	3772 char *end = strchr(s, 0);
adam@1449	3773 stm.tm_isdst = -1;
adam@1375	3774
adam@1375	3775 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end) {
adam@1373	3776 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	3777
kkallio@1448	3778 r->seconds = timegm(&stm);
adam@1373	3779 r->microseconds = 0;
adam@1373	3780
adam@1373	3781 return r;
adam@1374	3782 }
adam@1374	3783 else
adam@1373	3784 return NULL;
adam@1372	3785 }
adam@1407	3786
adam@1407	3787 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	3788
adam@1407	3789 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	3790 int r = setjmp(ctx->jmp_buf);
adam@1407	3791
adam@1407	3792 if (ctx->app->on_error) {
adam@1407	3793 if (r == 0) {
adam@1407	3794 if (ctx->app->db_begin(ctx))
adam@1407	3795 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1407	3796
adam@1409	3797 uw_buffer_reset(&ctx->outHeaders);
adam@1409	3798 if (on_success[0])
adam@1409	3799 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	3800 else
adam@1409	3801 uw_write_header(ctx, "Status: ");
adam@1409	3802 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1407	3803 uw_write_header(ctx, "Content-type: text/html\r\n\r\n");
adam@1407	3804 uw_write(ctx, begin_xhtml);
adam@1407	3805 ctx->app->on_error(ctx, msg);
adam@1407	3806 uw_write(ctx, "</html>");
adam@1407	3807 }
adam@1407	3808
adam@1407	3809 return r;
adam@1407	3810 } else
adam@1407	3811 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	3812 }
adam@1451	3813
adam@1451	3814 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	3815 ctx->allowed_to_return_indirectly = 1;
adam@1451	3816 }

Mercurial > urweb

annotate src/c/urweb.c @ 1457:aa2398e58306